* [PATCH 01/32] sony-laptop: old Vaio models contain 2 IO port entries
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Mattia Dongili, Len Brown
From: Mattia Dongili <malattia@linux.it>
Make the driver aware of this case and manage the existence of a
second separate IO port.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/sony-laptop.c | 204 ++++++++++++++++++++++++++++++++------------
1 files changed, 148 insertions(+), 56 deletions(-)
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 7d8bebe..091e035 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -1173,7 +1173,8 @@ static struct acpi_driver sony_nc_driver = {
#define SONYPI_TYPE3_OFFSET 0x12
struct sony_pic_ioport {
- struct acpi_resource_io io;
+ struct acpi_resource_io io1;
+ struct acpi_resource_io io2;
struct list_head list;
};
@@ -1443,11 +1444,11 @@ static u8 sony_pic_call1(u8 dev)
{
u8 v1, v2;
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
ITERATIONS_LONG);
- outb(dev, spic_dev.cur_ioport->io.minimum + 4);
- v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
- v2 = inb_p(spic_dev.cur_ioport->io.minimum);
+ outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
+ v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
+ v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
return v2;
}
@@ -1456,13 +1457,13 @@ static u8 sony_pic_call2(u8 dev, u8 fn)
{
u8 v1;
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
ITERATIONS_LONG);
- outb(dev, spic_dev.cur_ioport->io.minimum + 4);
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
+ outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
ITERATIONS_LONG);
- outb(fn, spic_dev.cur_ioport->io.minimum);
- v1 = inb_p(spic_dev.cur_ioport->io.minimum);
+ outb(fn, spic_dev.cur_ioport->io1.minimum);
+ v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
dprintk("sony_pic_call2: 0x%.4x\n", v1);
return v1;
}
@@ -1471,13 +1472,13 @@ static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
{
u8 v1;
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
- outb(dev, spic_dev.cur_ioport->io.minimum + 4);
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
- outb(fn, spic_dev.cur_ioport->io.minimum);
- wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
- outb(v, spic_dev.cur_ioport->io.minimum);
- v1 = inb_p(spic_dev.cur_ioport->io.minimum);
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
+ outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
+ outb(fn, spic_dev.cur_ioport->io1.minimum);
+ wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
+ outb(v, spic_dev.cur_ioport->io1.minimum);
+ v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
dprintk("sony_pic_call3: 0x%.4x\n", v1);
return v1;
}
@@ -2074,7 +2075,18 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
switch (resource->type) {
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+ {
+ /* start IO enumeration */
+ struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
+ if (!ioport)
+ return AE_ERROR;
+
+ list_add(&ioport->list, &dev->ioports);
+ return AE_OK;
+ }
+
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
+ /* end IO enumeration */
return AE_OK;
case ACPI_RESOURCE_TYPE_IRQ:
@@ -2101,7 +2113,7 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
if (!interrupt)
return AE_ERROR;
- list_add_tail(&interrupt->list, &dev->interrupts);
+ list_add(&interrupt->list, &dev->interrupts);
interrupt->irq.triggering = p->triggering;
interrupt->irq.polarity = p->polarity;
interrupt->irq.sharable = p->sharable;
@@ -2113,18 +2125,27 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
case ACPI_RESOURCE_TYPE_IO:
{
struct acpi_resource_io *io = &resource->data.io;
- struct sony_pic_ioport *ioport = NULL;
+ struct sony_pic_ioport *ioport =
+ list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
if (!io) {
dprintk("Blank IO resource\n");
return AE_OK;
}
- ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
- if (!ioport)
+ if (!ioport->io1.minimum) {
+ memcpy(&ioport->io1, io, sizeof(*io));
+ dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
+ ioport->io1.address_length);
+ }
+ else if (!ioport->io2.minimum) {
+ memcpy(&ioport->io2, io, sizeof(*io));
+ dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
+ ioport->io2.address_length);
+ }
+ else {
+ printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
return AE_ERROR;
-
- list_add_tail(&ioport->list, &dev->ioports);
- memcpy(&ioport->io, io, sizeof(*io));
+ }
return AE_OK;
}
default:
@@ -2199,10 +2220,22 @@ static int sony_pic_enable(struct acpi_device *device,
{
acpi_status status;
int result = 0;
+ /* Type 1 resource layout is:
+ * IO
+ * IO
+ * IRQNoFlags
+ * End
+ *
+ * Type 2 and 3 resource layout is:
+ * IO
+ * IRQNoFlags
+ * End
+ */
struct {
- struct acpi_resource io_res;
- struct acpi_resource irq_res;
- struct acpi_resource end;
+ struct acpi_resource res1;
+ struct acpi_resource res2;
+ struct acpi_resource res3;
+ struct acpi_resource res4;
} *resource;
struct acpi_buffer buffer = { 0, NULL };
@@ -2217,21 +2250,49 @@ static int sony_pic_enable(struct acpi_device *device,
buffer.length = sizeof(*resource) + 1;
buffer.pointer = resource;
- /* setup io resource */
- resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
- resource->io_res.length = sizeof(struct acpi_resource);
- memcpy(&resource->io_res.data.io, &ioport->io,
- sizeof(struct acpi_resource_io));
+ /* setup Type 1 resources */
+ if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
- /* setup irq resource */
- resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
- resource->irq_res.length = sizeof(struct acpi_resource);
- memcpy(&resource->irq_res.data.irq, &irq->irq,
- sizeof(struct acpi_resource_irq));
- /* we requested a shared irq */
- resource->irq_res.data.irq.sharable = ACPI_SHARED;
+ /* setup io resources */
+ resource->res1.type = ACPI_RESOURCE_TYPE_IO;
+ resource->res1.length = sizeof(struct acpi_resource);
+ memcpy(&resource->res1.data.io, &ioport->io1,
+ sizeof(struct acpi_resource_io));
- resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
+ resource->res2.type = ACPI_RESOURCE_TYPE_IO;
+ resource->res2.length = sizeof(struct acpi_resource);
+ memcpy(&resource->res2.data.io, &ioport->io2,
+ sizeof(struct acpi_resource_io));
+
+ /* setup irq resource */
+ resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
+ resource->res3.length = sizeof(struct acpi_resource);
+ memcpy(&resource->res3.data.irq, &irq->irq,
+ sizeof(struct acpi_resource_irq));
+ /* we requested a shared irq */
+ resource->res3.data.irq.sharable = ACPI_SHARED;
+
+ resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
+
+ }
+ /* setup Type 2/3 resources */
+ else {
+ /* setup io resource */
+ resource->res1.type = ACPI_RESOURCE_TYPE_IO;
+ resource->res1.length = sizeof(struct acpi_resource);
+ memcpy(&resource->res1.data.io, &ioport->io1,
+ sizeof(struct acpi_resource_io));
+
+ /* setup irq resource */
+ resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
+ resource->res2.length = sizeof(struct acpi_resource);
+ memcpy(&resource->res2.data.irq, &irq->irq,
+ sizeof(struct acpi_resource_irq));
+ /* we requested a shared irq */
+ resource->res2.data.irq.sharable = ACPI_SHARED;
+
+ resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
+ }
/* Attempt to set the resource */
dprintk("Evaluating _SRS\n");
@@ -2239,7 +2300,7 @@ static int sony_pic_enable(struct acpi_device *device,
/* check for total failure */
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
+ printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
result = -ENODEV;
goto end;
}
@@ -2268,11 +2329,14 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
- ev = inb_p(dev->cur_ioport->io.minimum);
- data_mask = inb_p(dev->cur_ioport->io.minimum + dev->evport_offset);
+ ev = inb_p(dev->cur_ioport->io1.minimum);
+ if (dev->cur_ioport->io2.minimum)
+ data_mask = inb_p(dev->cur_ioport->io2.minimum);
+ else
+ data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
- ev, data_mask, dev->cur_ioport->io.minimum, dev->evport_offset);
+ ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
if (ev == 0x00 || ev == 0xff)
return IRQ_HANDLED;
@@ -2323,8 +2387,11 @@ static int sony_pic_remove(struct acpi_device *device, int type)
}
free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
- release_region(spic_dev.cur_ioport->io.minimum,
- spic_dev.cur_ioport->io.address_length);
+ release_region(spic_dev.cur_ioport->io1.minimum,
+ spic_dev.cur_ioport->io1.address_length);
+ if (spic_dev.cur_ioport->io2.minimum)
+ release_region(spic_dev.cur_ioport->io2.minimum,
+ spic_dev.cur_ioport->io2.address_length);
sonypi_compat_exit();
@@ -2397,14 +2464,36 @@ static int sony_pic_add(struct acpi_device *device)
goto err_remove_input;
/* request io port */
- list_for_each_entry(io, &spic_dev.ioports, list) {
- if (request_region(io->io.minimum, io->io.address_length,
+ list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
+ if (request_region(io->io1.minimum, io->io1.address_length,
"Sony Programable I/O Device")) {
- dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
- io->io.minimum, io->io.maximum,
- io->io.address_length);
- spic_dev.cur_ioport = io;
- break;
+ dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
+ io->io1.minimum, io->io1.maximum,
+ io->io1.address_length);
+ /* Type 1 have 2 ioports */
+ if (io->io2.minimum) {
+ if (request_region(io->io2.minimum,
+ io->io2.address_length,
+ "Sony Programable I/O Device")) {
+ dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
+ io->io2.minimum, io->io2.maximum,
+ io->io2.address_length);
+ spic_dev.cur_ioport = io;
+ break;
+ }
+ else {
+ dprintk("Unable to get I/O port2: "
+ "0x%.4x (0x%.4x) + 0x%.2x\n",
+ io->io2.minimum, io->io2.maximum,
+ io->io2.address_length);
+ release_region(io->io1.minimum,
+ io->io1.address_length);
+ }
+ }
+ else {
+ spic_dev.cur_ioport = io;
+ break;
+ }
}
}
if (!spic_dev.cur_ioport) {
@@ -2414,7 +2503,7 @@ static int sony_pic_add(struct acpi_device *device)
}
/* request IRQ */
- list_for_each_entry(irq, &spic_dev.interrupts, list) {
+ list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
IRQF_SHARED, "sony-laptop", &spic_dev)) {
dprintk("IRQ: %d - triggering: %d - "
@@ -2462,8 +2551,11 @@ err_free_irq:
free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
err_release_region:
- release_region(spic_dev.cur_ioport->io.minimum,
- spic_dev.cur_ioport->io.address_length);
+ release_region(spic_dev.cur_ioport->io1.minimum,
+ spic_dev.cur_ioport->io1.address_length);
+ if (spic_dev.cur_ioport->io2.minimum)
+ release_region(spic_dev.cur_ioport->io2.minimum,
+ spic_dev.cur_ioport->io2.address_length);
err_remove_compat:
sonypi_compat_exit();
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 02/32] fujitsu-laptop: create Fujitsu laptop platform specific driver
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Jonathan Woithe, Len Brown
From: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/Kconfig | 15 ++
drivers/misc/Makefile | 1 +
drivers/misc/fujitsu-laptop.c | 358 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 374 insertions(+), 0 deletions(-)
create mode 100644 drivers/misc/fujitsu-laptop.c
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index a266558..df89367 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -111,6 +111,21 @@ config ASUS_LAPTOP
If you have an ACPI-compatible ASUS laptop, say Y or M here.
+config FUJITSU_LAPTOP
+ tristate "Fujitsu Laptop Extras"
+ depends on X86
+ depends on ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is a driver for laptops built by Fujitsu:
+
+ * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
+ * Possibly other Fujitsu laptop models
+
+ It adds support for LCD brightness control.
+
+ If you have a Fujitsu laptop, say Y or M here.
+
config MSI_LAPTOP
tristate "MSI Laptop Extras"
depends on X86
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index b5ce0e3..be90d48 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -14,4 +14,5 @@ obj-$(CONFIG_PHANTOM) += phantom.o
obj-$(CONFIG_SGI_IOC4) += ioc4.o
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
+obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
new file mode 100644
index 0000000..d366a6c
--- /dev/null
+++ b/drivers/misc/fujitsu-laptop.c
@@ -0,0 +1,358 @@
+/*-*-linux-c-*-*/
+
+/*
+ Copyright (C) 2007 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
+ Based on earlier work:
+ Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
+ Adrian Yee <brewt-fujitsu@brewt.org>
+
+ Templated from msi-laptop.c which is copyright by its respective authors.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ */
+
+/*
+ * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
+ * features made available on a range of Fujitsu laptops including the
+ * P2xxx/P5xxx/S6xxx/S7xxx series.
+ *
+ * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
+ * others may be added at a later date.
+ *
+ * lcd_level - Screen brightness: contains a single integer in the
+ * range 0..7. (rw)
+ *
+ * In addition to these platform device attributes the driver
+ * registers itself in the Linux backlight control subsystem and is
+ * available to userspace under /sys/class/backlight/fujitsu-laptop/.
+ *
+ * This driver has been tested on a Fujitsu Lifebook S7020. It should
+ * work on most P-series and S-series Lifebooks, but YMMV.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/backlight.h>
+#include <linux/platform_device.h>
+#include <linux/autoconf.h>
+
+#define FUJITSU_DRIVER_VERSION "0.3"
+
+#define FUJITSU_LCD_N_LEVELS 8
+
+#define ACPI_FUJITSU_CLASS "fujitsu"
+#define ACPI_FUJITSU_HID "FUJ02B1"
+#define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI extras driver"
+#define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
+
+struct fujitsu_t {
+ acpi_handle acpi_handle;
+ struct backlight_device *bl_device;
+ struct platform_device *pf_device;
+
+ unsigned long fuj02b1_state;
+ unsigned int brightness_changed;
+ unsigned int brightness_level;
+};
+
+static struct fujitsu_t *fujitsu;
+
+/* Hardware access */
+
+static int set_lcd_level(int level)
+{
+ acpi_status status = AE_OK;
+ union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &arg0 };
+ acpi_handle handle = NULL;
+
+ if (level < 0 || level >= FUJITSU_LCD_N_LEVELS)
+ return -EINVAL;
+
+ if (!fujitsu)
+ return -EINVAL;
+
+ status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "SBLL not present\n"));
+ return -ENODEV;
+ }
+
+ arg0.integer.value = level;
+
+ status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ return 0;
+}
+
+static int get_lcd_level(void)
+{
+ unsigned long state = 0;
+ acpi_status status = AE_OK;
+
+ // Get the Brightness
+ status =
+ acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
+ if (status < 0)
+ return status;
+
+ fujitsu->fuj02b1_state = state;
+ fujitsu->brightness_level = state & 0x0fffffff;
+
+ if (state & 0x80000000)
+ fujitsu->brightness_changed = 1;
+ else
+ fujitsu->brightness_changed = 0;
+
+ if (status < 0)
+ return status;
+
+ return fujitsu->brightness_level;
+}
+
+/* Backlight device stuff */
+
+static int bl_get_brightness(struct backlight_device *b)
+{
+ return get_lcd_level();
+}
+
+static int bl_update_status(struct backlight_device *b)
+{
+ return set_lcd_level(b->props.brightness);
+}
+
+static struct backlight_ops fujitsubl_ops = {
+ .get_brightness = bl_get_brightness,
+ .update_status = bl_update_status,
+};
+
+/* Platform device */
+
+static ssize_t show_lcd_level(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+
+ int ret;
+
+ ret = get_lcd_level();
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%i\n", ret);
+}
+
+static ssize_t store_lcd_level(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+
+ int level, ret;
+
+ if (sscanf(buf, "%i", &level) != 1
+ || (level < 0 || level >= FUJITSU_LCD_N_LEVELS))
+ return -EINVAL;
+
+ ret = set_lcd_level(level);
+ if (ret < 0)
+ return ret;
+
+ return count;
+}
+
+static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
+
+static struct attribute *fujitsupf_attributes[] = {
+ &dev_attr_lcd_level.attr,
+ NULL
+};
+
+static struct attribute_group fujitsupf_attribute_group = {
+ .attrs = fujitsupf_attributes
+};
+
+static struct platform_driver fujitsupf_driver = {
+ .driver = {
+ .name = "fujitsu-laptop",
+ .owner = THIS_MODULE,
+ }
+};
+
+/* ACPI device */
+
+int acpi_fujitsu_add(struct acpi_device *device)
+{
+ int result = 0;
+ int state = 0;
+
+ ACPI_FUNCTION_TRACE("acpi_fujitsu_add");
+
+ if (!device)
+ return -EINVAL;
+
+ fujitsu->acpi_handle = device->handle;
+ sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
+ sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
+ acpi_driver_data(device) = fujitsu;
+
+ result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error reading power state\n"));
+ goto end;
+ }
+
+ printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
+ acpi_device_name(device), acpi_device_bid(device),
+ !device->power.state ? "on" : "off");
+
+ end:
+
+ return result;
+}
+
+int acpi_fujitsu_remove(struct acpi_device *device, int type)
+{
+ ACPI_FUNCTION_TRACE("acpi_fujitsu_remove");
+
+ if (!device || !acpi_driver_data(device))
+ return -EINVAL;
+ fujitsu->acpi_handle = 0;
+
+ return 0;
+}
+
+static const struct acpi_device_id fujitsu_device_ids[] = {
+ {ACPI_FUJITSU_HID, 0},
+ {"", 0},
+};
+
+static struct acpi_driver acpi_fujitsu_driver = {
+ .name = ACPI_FUJITSU_DRIVER_NAME,
+ .class = ACPI_FUJITSU_CLASS,
+ .ids = fujitsu_device_ids,
+ .ops = {
+ .add = acpi_fujitsu_add,
+ .remove = acpi_fujitsu_remove,
+ },
+};
+
+/* Initialization */
+
+static int __init fujitsu_init(void)
+{
+ int ret, result;
+
+ if (acpi_disabled)
+ return -ENODEV;
+
+ fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
+ if (!fujitsu)
+ return -ENOMEM;
+ memset(fujitsu, 0, sizeof(struct fujitsu_t));
+
+ result = acpi_bus_register_driver(&acpi_fujitsu_driver);
+ if (result < 0) {
+ ret = -ENODEV;
+ goto fail_acpi;
+ }
+
+ /* Register backlight stuff */
+
+ fujitsu->bl_device =
+ backlight_device_register("fujitsu-laptop", NULL, NULL,
+ &fujitsubl_ops);
+ if (IS_ERR(fujitsu->bl_device))
+ return PTR_ERR(fujitsu->bl_device);
+
+ fujitsu->bl_device->props.max_brightness = FUJITSU_LCD_N_LEVELS - 1;
+ ret = platform_driver_register(&fujitsupf_driver);
+ if (ret)
+ goto fail_backlight;
+
+ /* Register platform stuff */
+
+ fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
+ if (!fujitsu->pf_device) {
+ ret = -ENOMEM;
+ goto fail_platform_driver;
+ }
+
+ ret = platform_device_add(fujitsu->pf_device);
+ if (ret)
+ goto fail_platform_device1;
+
+ ret =
+ sysfs_create_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
+ if (ret)
+ goto fail_platform_device2;
+
+ printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
+ " successfully loaded.\n");
+
+ return 0;
+
+ fail_platform_device2:
+
+ platform_device_del(fujitsu->pf_device);
+
+ fail_platform_device1:
+
+ platform_device_put(fujitsu->pf_device);
+
+ fail_platform_driver:
+
+ platform_driver_unregister(&fujitsupf_driver);
+
+ fail_backlight:
+
+ backlight_device_unregister(fujitsu->bl_device);
+
+ fail_acpi:
+
+ kfree(fujitsu);
+
+ return ret;
+}
+
+static void __exit fujitsu_cleanup(void)
+{
+ sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
+ platform_device_unregister(fujitsu->pf_device);
+ platform_driver_unregister(&fujitsupf_driver);
+ backlight_device_unregister(fujitsu->bl_device);
+
+ acpi_bus_unregister_driver(&acpi_fujitsu_driver);
+
+ kfree(fujitsu);
+
+ printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
+}
+
+module_init(fujitsu_init);
+module_exit(fujitsu_cleanup);
+
+MODULE_AUTHOR("Jonathan Woithe");
+MODULE_DESCRIPTION("Fujitsu laptop extras support");
+MODULE_VERSION(FUJITSU_DRIVER_VERSION);
+MODULE_LICENSE("GPL");
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 02/32] fujitsu-laptop: create Fujitsu laptop platform specific driver
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Jonathan Woithe, Len Brown
From: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/Kconfig | 15 ++
drivers/misc/Makefile | 1 +
drivers/misc/fujitsu-laptop.c | 358 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 374 insertions(+), 0 deletions(-)
create mode 100644 drivers/misc/fujitsu-laptop.c
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index a266558..df89367 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -111,6 +111,21 @@ config ASUS_LAPTOP
If you have an ACPI-compatible ASUS laptop, say Y or M here.
+config FUJITSU_LAPTOP
+ tristate "Fujitsu Laptop Extras"
+ depends on X86
+ depends on ACPI
+ depends on BACKLIGHT_CLASS_DEVICE
+ ---help---
+ This is a driver for laptops built by Fujitsu:
+
+ * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
+ * Possibly other Fujitsu laptop models
+
+ It adds support for LCD brightness control.
+
+ If you have a Fujitsu laptop, say Y or M here.
+
config MSI_LAPTOP
tristate "MSI Laptop Extras"
depends on X86
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index b5ce0e3..be90d48 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -14,4 +14,5 @@ obj-$(CONFIG_PHANTOM) += phantom.o
obj-$(CONFIG_SGI_IOC4) += ioc4.o
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
+obj-$(CONFIG_FUJITSU_LAPTOP) += fujitsu-laptop.o
obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o
diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
new file mode 100644
index 0000000..d366a6c
--- /dev/null
+++ b/drivers/misc/fujitsu-laptop.c
@@ -0,0 +1,358 @@
+/*-*-linux-c-*-*/
+
+/*
+ Copyright (C) 2007 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
+ Based on earlier work:
+ Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
+ Adrian Yee <brewt-fujitsu@brewt.org>
+
+ Templated from msi-laptop.c which is copyright by its respective authors.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ */
+
+/*
+ * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
+ * features made available on a range of Fujitsu laptops including the
+ * P2xxx/P5xxx/S6xxx/S7xxx series.
+ *
+ * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
+ * others may be added at a later date.
+ *
+ * lcd_level - Screen brightness: contains a single integer in the
+ * range 0..7. (rw)
+ *
+ * In addition to these platform device attributes the driver
+ * registers itself in the Linux backlight control subsystem and is
+ * available to userspace under /sys/class/backlight/fujitsu-laptop/.
+ *
+ * This driver has been tested on a Fujitsu Lifebook S7020. It should
+ * work on most P-series and S-series Lifebooks, but YMMV.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/backlight.h>
+#include <linux/platform_device.h>
+#include <linux/autoconf.h>
+
+#define FUJITSU_DRIVER_VERSION "0.3"
+
+#define FUJITSU_LCD_N_LEVELS 8
+
+#define ACPI_FUJITSU_CLASS "fujitsu"
+#define ACPI_FUJITSU_HID "FUJ02B1"
+#define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI extras driver"
+#define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
+
+struct fujitsu_t {
+ acpi_handle acpi_handle;
+ struct backlight_device *bl_device;
+ struct platform_device *pf_device;
+
+ unsigned long fuj02b1_state;
+ unsigned int brightness_changed;
+ unsigned int brightness_level;
+};
+
+static struct fujitsu_t *fujitsu;
+
+/* Hardware access */
+
+static int set_lcd_level(int level)
+{
+ acpi_status status = AE_OK;
+ union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &arg0 };
+ acpi_handle handle = NULL;
+
+ if (level < 0 || level >= FUJITSU_LCD_N_LEVELS)
+ return -EINVAL;
+
+ if (!fujitsu)
+ return -EINVAL;
+
+ status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "SBLL not present\n"));
+ return -ENODEV;
+ }
+
+ arg0.integer.value = level;
+
+ status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ return 0;
+}
+
+static int get_lcd_level(void)
+{
+ unsigned long state = 0;
+ acpi_status status = AE_OK;
+
+ // Get the Brightness
+ status =
+ acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
+ if (status < 0)
+ return status;
+
+ fujitsu->fuj02b1_state = state;
+ fujitsu->brightness_level = state & 0x0fffffff;
+
+ if (state & 0x80000000)
+ fujitsu->brightness_changed = 1;
+ else
+ fujitsu->brightness_changed = 0;
+
+ if (status < 0)
+ return status;
+
+ return fujitsu->brightness_level;
+}
+
+/* Backlight device stuff */
+
+static int bl_get_brightness(struct backlight_device *b)
+{
+ return get_lcd_level();
+}
+
+static int bl_update_status(struct backlight_device *b)
+{
+ return set_lcd_level(b->props.brightness);
+}
+
+static struct backlight_ops fujitsubl_ops = {
+ .get_brightness = bl_get_brightness,
+ .update_status = bl_update_status,
+};
+
+/* Platform device */
+
+static ssize_t show_lcd_level(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+
+ int ret;
+
+ ret = get_lcd_level();
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%i\n", ret);
+}
+
+static ssize_t store_lcd_level(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+
+ int level, ret;
+
+ if (sscanf(buf, "%i", &level) != 1
+ || (level < 0 || level >= FUJITSU_LCD_N_LEVELS))
+ return -EINVAL;
+
+ ret = set_lcd_level(level);
+ if (ret < 0)
+ return ret;
+
+ return count;
+}
+
+static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
+
+static struct attribute *fujitsupf_attributes[] = {
+ &dev_attr_lcd_level.attr,
+ NULL
+};
+
+static struct attribute_group fujitsupf_attribute_group = {
+ .attrs = fujitsupf_attributes
+};
+
+static struct platform_driver fujitsupf_driver = {
+ .driver = {
+ .name = "fujitsu-laptop",
+ .owner = THIS_MODULE,
+ }
+};
+
+/* ACPI device */
+
+int acpi_fujitsu_add(struct acpi_device *device)
+{
+ int result = 0;
+ int state = 0;
+
+ ACPI_FUNCTION_TRACE("acpi_fujitsu_add");
+
+ if (!device)
+ return -EINVAL;
+
+ fujitsu->acpi_handle = device->handle;
+ sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
+ sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
+ acpi_driver_data(device) = fujitsu;
+
+ result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error reading power state\n"));
+ goto end;
+ }
+
+ printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
+ acpi_device_name(device), acpi_device_bid(device),
+ !device->power.state ? "on" : "off");
+
+ end:
+
+ return result;
+}
+
+int acpi_fujitsu_remove(struct acpi_device *device, int type)
+{
+ ACPI_FUNCTION_TRACE("acpi_fujitsu_remove");
+
+ if (!device || !acpi_driver_data(device))
+ return -EINVAL;
+ fujitsu->acpi_handle = 0;
+
+ return 0;
+}
+
+static const struct acpi_device_id fujitsu_device_ids[] = {
+ {ACPI_FUJITSU_HID, 0},
+ {"", 0},
+};
+
+static struct acpi_driver acpi_fujitsu_driver = {
+ .name = ACPI_FUJITSU_DRIVER_NAME,
+ .class = ACPI_FUJITSU_CLASS,
+ .ids = fujitsu_device_ids,
+ .ops = {
+ .add = acpi_fujitsu_add,
+ .remove = acpi_fujitsu_remove,
+ },
+};
+
+/* Initialization */
+
+static int __init fujitsu_init(void)
+{
+ int ret, result;
+
+ if (acpi_disabled)
+ return -ENODEV;
+
+ fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
+ if (!fujitsu)
+ return -ENOMEM;
+ memset(fujitsu, 0, sizeof(struct fujitsu_t));
+
+ result = acpi_bus_register_driver(&acpi_fujitsu_driver);
+ if (result < 0) {
+ ret = -ENODEV;
+ goto fail_acpi;
+ }
+
+ /* Register backlight stuff */
+
+ fujitsu->bl_device =
+ backlight_device_register("fujitsu-laptop", NULL, NULL,
+ &fujitsubl_ops);
+ if (IS_ERR(fujitsu->bl_device))
+ return PTR_ERR(fujitsu->bl_device);
+
+ fujitsu->bl_device->props.max_brightness = FUJITSU_LCD_N_LEVELS - 1;
+ ret = platform_driver_register(&fujitsupf_driver);
+ if (ret)
+ goto fail_backlight;
+
+ /* Register platform stuff */
+
+ fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
+ if (!fujitsu->pf_device) {
+ ret = -ENOMEM;
+ goto fail_platform_driver;
+ }
+
+ ret = platform_device_add(fujitsu->pf_device);
+ if (ret)
+ goto fail_platform_device1;
+
+ ret =
+ sysfs_create_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
+ if (ret)
+ goto fail_platform_device2;
+
+ printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
+ " successfully loaded.\n");
+
+ return 0;
+
+ fail_platform_device2:
+
+ platform_device_del(fujitsu->pf_device);
+
+ fail_platform_device1:
+
+ platform_device_put(fujitsu->pf_device);
+
+ fail_platform_driver:
+
+ platform_driver_unregister(&fujitsupf_driver);
+
+ fail_backlight:
+
+ backlight_device_unregister(fujitsu->bl_device);
+
+ fail_acpi:
+
+ kfree(fujitsu);
+
+ return ret;
+}
+
+static void __exit fujitsu_cleanup(void)
+{
+ sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
+ &fujitsupf_attribute_group);
+ platform_device_unregister(fujitsu->pf_device);
+ platform_driver_unregister(&fujitsupf_driver);
+ backlight_device_unregister(fujitsu->bl_device);
+
+ acpi_bus_unregister_driver(&acpi_fujitsu_driver);
+
+ kfree(fujitsu);
+
+ printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
+}
+
+module_init(fujitsu_init);
+module_exit(fujitsu_cleanup);
+
+MODULE_AUTHOR("Jonathan Woithe");
+MODULE_DESCRIPTION("Fujitsu laptop extras support");
+MODULE_VERSION(FUJITSU_DRIVER_VERSION);
+MODULE_LICENSE("GPL");
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 03/32] ACPI: thermal: use round_jiffies when thermal zone polling is enabled
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Len Brown
From: Len Brown <len.brown@intel.com>
Properly functioning systems do not use thermal zone polling,
they use event-based notification.
However, some users enable periodic thermal zone polling
to work around bugs on their platforms, and at least one
platform exists with a real _TZP that requests polling.
While thermal zone polling (_TZP) is specified in units to 0.1 seconds,
it actually has a maximum granularity of 1 second. Thus, we can safely
round up the _TZP timeout to occur on the next 1-second boundary.
This will batch it with other 1-second-granularity timers in the
system and thus potentially extend processor idle duration.
Note that the same timer is used both for _TZP
and for passive processor thermal throttling.
We can not round up the timeout when it is used
for passive thermal throttling.
Also, we can not make this a deferrable timer,
as temperature is just as relevant during idle
as it is during non-idle.
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/thermal.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index bc6d586..15d5fdc 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -711,6 +711,7 @@ static void acpi_thermal_check(void *data)
int result = 0;
struct acpi_thermal *tz = data;
unsigned long sleep_time = 0;
+ unsigned long timeout_jiffies = 0;
int i = 0;
struct acpi_thermal_state state;
@@ -787,10 +788,13 @@ static void acpi_thermal_check(void *data)
* a thermal event occurs). Note that _TSP and _TZD values are
* given in 1/10th seconds (we must covert to milliseconds).
*/
- if (tz->state.passive)
+ if (tz->state.passive) {
sleep_time = tz->trips.passive.tsp * 100;
- else if (tz->polling_frequency > 0)
+ timeout_jiffies = jiffies + (HZ * sleep_time) / 1000;
+ } else if (tz->polling_frequency > 0) {
sleep_time = tz->polling_frequency * 100;
+ timeout_jiffies = round_jiffies(jiffies + (HZ * sleep_time) / 1000);
+ }
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n",
tz->name, tz->temperature, sleep_time));
@@ -804,12 +808,11 @@ static void acpi_thermal_check(void *data)
del_timer(&(tz->timer));
} else {
if (timer_pending(&(tz->timer)))
- mod_timer(&(tz->timer),
- jiffies + (HZ * sleep_time) / 1000);
+ mod_timer(&(tz->timer), timeout_jiffies);
else {
tz->timer.data = (unsigned long)tz;
tz->timer.function = acpi_thermal_run;
- tz->timer.expires = jiffies + (HZ * sleep_time) / 1000;
+ tz->timer.expires = timeout_jiffies;
add_timer(&(tz->timer));
}
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 03/32] ACPI: thermal: use round_jiffies when thermal zone polling is enabled
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Len Brown
From: Len Brown <len.brown@intel.com>
Properly functioning systems do not use thermal zone polling,
they use event-based notification.
However, some users enable periodic thermal zone polling
to work around bugs on their platforms, and at least one
platform exists with a real _TZP that requests polling.
While thermal zone polling (_TZP) is specified in units to 0.1 seconds,
it actually has a maximum granularity of 1 second. Thus, we can safely
round up the _TZP timeout to occur on the next 1-second boundary.
This will batch it with other 1-second-granularity timers in the
system and thus potentially extend processor idle duration.
Note that the same timer is used both for _TZP
and for passive processor thermal throttling.
We can not round up the timeout when it is used
for passive thermal throttling.
Also, we can not make this a deferrable timer,
as temperature is just as relevant during idle
as it is during non-idle.
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/thermal.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index bc6d586..15d5fdc 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -711,6 +711,7 @@ static void acpi_thermal_check(void *data)
int result = 0;
struct acpi_thermal *tz = data;
unsigned long sleep_time = 0;
+ unsigned long timeout_jiffies = 0;
int i = 0;
struct acpi_thermal_state state;
@@ -787,10 +788,13 @@ static void acpi_thermal_check(void *data)
* a thermal event occurs). Note that _TSP and _TZD values are
* given in 1/10th seconds (we must covert to milliseconds).
*/
- if (tz->state.passive)
+ if (tz->state.passive) {
sleep_time = tz->trips.passive.tsp * 100;
- else if (tz->polling_frequency > 0)
+ timeout_jiffies = jiffies + (HZ * sleep_time) / 1000;
+ } else if (tz->polling_frequency > 0) {
sleep_time = tz->polling_frequency * 100;
+ timeout_jiffies = round_jiffies(jiffies + (HZ * sleep_time) / 1000);
+ }
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n",
tz->name, tz->temperature, sleep_time));
@@ -804,12 +808,11 @@ static void acpi_thermal_check(void *data)
del_timer(&(tz->timer));
} else {
if (timer_pending(&(tz->timer)))
- mod_timer(&(tz->timer),
- jiffies + (HZ * sleep_time) / 1000);
+ mod_timer(&(tz->timer), timeout_jiffies);
else {
tz->timer.data = (unsigned long)tz;
tz->timer.function = acpi_thermal_run;
- tz->timer.expires = jiffies + (HZ * sleep_time) / 1000;
+ tz->timer.expires = timeout_jiffies;
add_timer(&(tz->timer));
}
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 04/32] ACPI: AC: Add sysfs interface
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ac.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 47 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 26d7070..a08ecbb 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -29,6 +29,12 @@
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+
+#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -72,16 +78,42 @@ static struct acpi_driver acpi_ac_driver = {
};
struct acpi_ac {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply charger;
+#endif
struct acpi_device * device;
unsigned long state;
};
+#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
+
static const struct file_operations acpi_ac_fops = {
.open = acpi_ac_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
+#ifdef ENABLE_POWER_SUPPLY
+static int get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_ac *ac = to_acpi_ac(psy);
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = ac->state;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property ac_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+#endif
/* --------------------------------------------------------------------------
AC Adapter Management
@@ -208,6 +240,9 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
(u32) ac->state);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -244,7 +279,14 @@ static int acpi_ac_add(struct acpi_device *device)
result = acpi_ac_add_fs(device);
if (result)
goto end;
-
+#ifdef ENABLE_POWER_SUPPLY
+ ac->charger.name = acpi_device_bid(device);
+ ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
+ ac->charger.properties = ac_props;
+ ac->charger.num_properties = ARRAY_SIZE(ac_props);
+ ac->charger.get_property = get_ac_property;
+ power_supply_register(&ac->device->dev, &ac->charger);
+#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify,
ac);
@@ -279,7 +321,10 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify);
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (ac->charger.dev)
+ power_supply_unregister(&ac->charger);
+#endif
acpi_ac_remove_fs(device);
kfree(ac);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 04/32] ACPI: AC: Add sysfs interface
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ac.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 47 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 26d7070..a08ecbb 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -29,6 +29,12 @@
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+
+#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -72,16 +78,42 @@ static struct acpi_driver acpi_ac_driver = {
};
struct acpi_ac {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply charger;
+#endif
struct acpi_device * device;
unsigned long state;
};
+#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
+
static const struct file_operations acpi_ac_fops = {
.open = acpi_ac_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
+#ifdef ENABLE_POWER_SUPPLY
+static int get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_ac *ac = to_acpi_ac(psy);
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = ac->state;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property ac_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+#endif
/* --------------------------------------------------------------------------
AC Adapter Management
@@ -208,6 +240,9 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
(u32) ac->state);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -244,7 +279,14 @@ static int acpi_ac_add(struct acpi_device *device)
result = acpi_ac_add_fs(device);
if (result)
goto end;
-
+#ifdef ENABLE_POWER_SUPPLY
+ ac->charger.name = acpi_device_bid(device);
+ ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
+ ac->charger.properties = ac_props;
+ ac->charger.num_properties = ARRAY_SIZE(ac_props);
+ ac->charger.get_property = get_ac_property;
+ power_supply_register(&ac->device->dev, &ac->charger);
+#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify,
ac);
@@ -279,7 +321,10 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify);
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (ac->charger.dev)
+ power_supply_unregister(&ac->charger);
+#endif
acpi_ac_remove_fs(device);
kfree(ac);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 05/32] ACPI: Battery: don't use acpi_extract_package()
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
acpi_extract_package() creates more problems with memory management than
solves as helper for package handling.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 359 +++++++++++++++++++-----------------------------
1 files changed, 139 insertions(+), 220 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 9b2c0f7..de506f3 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -36,9 +36,6 @@
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
-#define ACPI_BATTERY_FORMAT_BIF "NNNNNNNNNSSSS"
-#define ACPI_BATTERY_FORMAT_BST "NNNN"
-
#define ACPI_BATTERY_COMPONENT 0x00040000
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_BATTERY_DEVICE_NAME "Battery"
@@ -90,61 +87,49 @@ static struct acpi_driver acpi_battery_driver = {
},
};
-struct acpi_battery_state {
- acpi_integer state;
- acpi_integer present_rate;
- acpi_integer remaining_capacity;
- acpi_integer present_voltage;
-};
-
-struct acpi_battery_info {
- acpi_integer power_unit;
- acpi_integer design_capacity;
- acpi_integer last_full_capacity;
- acpi_integer battery_technology;
- acpi_integer design_voltage;
- acpi_integer design_capacity_warning;
- acpi_integer design_capacity_low;
- acpi_integer battery_capacity_granularity_1;
- acpi_integer battery_capacity_granularity_2;
- acpi_string model_number;
- acpi_string serial_number;
- acpi_string battery_type;
- acpi_string oem_info;
-};
-
-enum acpi_battery_files{
+enum acpi_battery_files {
ACPI_BATTERY_INFO = 0,
ACPI_BATTERY_STATE,
ACPI_BATTERY_ALARM,
ACPI_BATTERY_NUMFILES,
};
-struct acpi_battery_flags {
- u8 battery_present_prev;
- u8 alarm_present;
- u8 init_update;
- u8 update[ACPI_BATTERY_NUMFILES];
- u8 power_unit;
-};
-
struct acpi_battery {
- struct mutex mutex;
struct acpi_device *device;
- struct acpi_battery_flags flags;
- struct acpi_buffer bif_data;
- struct acpi_buffer bst_data;
+ struct mutex lock;
unsigned long alarm;
unsigned long update_time[ACPI_BATTERY_NUMFILES];
+ int state;
+ int present_rate;
+ int remaining_capacity;
+ int present_voltage;
+ int power_unit;
+ int design_capacity;
+ int last_full_capacity;
+ int technology;
+ int design_voltage;
+ int design_capacity_warning;
+ int design_capacity_low;
+ int capacity_granularity_1;
+ int capacity_granularity_2;
+ char model_number[32];
+ char serial_number[32];
+ char type[32];
+ char oem_info[32];
+ u8 present_prev;
+ u8 alarm_present;
+ u8 init_update;
+ u8 update[ACPI_BATTERY_NUMFILES];
};
inline int acpi_battery_present(struct acpi_battery *battery)
{
return battery->device->status.battery_present;
}
+
inline char *acpi_battery_power_units(struct acpi_battery *battery)
{
- if (battery->flags.power_unit)
+ if (battery->power_unit)
return ACPI_BATTERY_UNITS_AMPS;
else
return ACPI_BATTERY_UNITS_WATTS;
@@ -165,43 +150,63 @@ static void acpi_battery_check_result(struct acpi_battery *battery, int result)
return;
if (result) {
- battery->flags.init_update = 1;
+ battery->init_update = 1;
}
}
-static int acpi_battery_extract_package(struct acpi_battery *battery,
- union acpi_object *package,
- struct acpi_buffer *format,
- struct acpi_buffer *data,
- char *package_name)
-{
- acpi_status status = AE_OK;
- struct acpi_buffer data_null = { 0, NULL };
+struct acpi_offsets {
+ size_t offset; /* offset inside struct acpi_sbs_battery */
+ u8 mode; /* int or string? */
+};
- status = acpi_extract_package(package, format, &data_null);
- if (status != AE_BUFFER_OVERFLOW) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting size %s",
- package_name));
- return -ENODEV;
- }
+static struct acpi_offsets state_offsets[] = {
+ {offsetof(struct acpi_battery, state), 0},
+ {offsetof(struct acpi_battery, present_rate), 0},
+ {offsetof(struct acpi_battery, remaining_capacity), 0},
+ {offsetof(struct acpi_battery, present_voltage), 0},
+};
- if (data_null.length != data->length) {
- kfree(data->pointer);
- data->pointer = kzalloc(data_null.length, GFP_KERNEL);
- if (!data->pointer) {
- ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, "kzalloc()"));
- return -ENOMEM;
- }
- data->length = data_null.length;
- }
+static struct acpi_offsets info_offsets[] = {
+ {offsetof(struct acpi_battery, power_unit), 0},
+ {offsetof(struct acpi_battery, design_capacity), 0},
+ {offsetof(struct acpi_battery, last_full_capacity), 0},
+ {offsetof(struct acpi_battery, technology), 0},
+ {offsetof(struct acpi_battery, design_voltage), 0},
+ {offsetof(struct acpi_battery, design_capacity_warning), 0},
+ {offsetof(struct acpi_battery, design_capacity_low), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_1), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_2), 0},
+ {offsetof(struct acpi_battery, model_number), 1},
+ {offsetof(struct acpi_battery, serial_number), 1},
+ {offsetof(struct acpi_battery, type), 1},
+ {offsetof(struct acpi_battery, oem_info), 1},
+};
- status = acpi_extract_package(package, format, data);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting %s",
- package_name));
- return -ENODEV;
+static int extract_package(struct acpi_battery *battery,
+ union acpi_object *package,
+ struct acpi_offsets *offsets, int num)
+{
+ int i, *x;
+ union acpi_object *element;
+ if (package->type != ACPI_TYPE_PACKAGE)
+ return -EFAULT;
+ for (i = 0; i < num; ++i) {
+ if (package->package.count <= i)
+ return -EFAULT;
+ element = &package->package.elements[i];
+ if (offsets[i].mode) {
+ if (element->type != ACPI_TYPE_STRING &&
+ element->type != ACPI_TYPE_BUFFER)
+ return -EFAULT;
+ strncpy((u8 *)battery + offsets[i].offset,
+ element->string.pointer, 32);
+ } else {
+ if (element->type != ACPI_TYPE_INTEGER)
+ return -EFAULT;
+ x = (int *)((u8 *)battery + offsets[i].offset);
+ *x = element->integer.value;
+ }
}
-
return 0;
}
@@ -222,49 +227,21 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
int result = 0;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BIF),
- ACPI_BATTERY_FORMAT_BIF
- };
- union acpi_object *package = NULL;
- struct acpi_buffer *data = NULL;
- struct acpi_battery_info *bif = NULL;
battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
-
if (!acpi_battery_present(battery))
return 0;
-
- /* Evaluate _BIF */
-
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
- &buffer);
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+ NULL, &buffer);
+ mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
}
-
- package = buffer.pointer;
-
- data = &battery->bif_data;
-
- /* Extract Package Data */
-
- result =
- acpi_battery_extract_package(battery, package, &format, data,
- "_BIF");
- if (result)
- goto end;
-
- end:
-
+ result = extract_package(battery, buffer.pointer,
+ info_offsets, ARRAY_SIZE(info_offsets));
kfree(buffer.pointer);
-
- if (!result) {
- bif = data->pointer;
- battery->flags.power_unit = bif->power_unit;
- }
-
return result;
}
@@ -273,42 +250,24 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
int result = 0;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BST),
- ACPI_BATTERY_FORMAT_BST
- };
- union acpi_object *package = NULL;
- struct acpi_buffer *data = NULL;
battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
if (!acpi_battery_present(battery))
return 0;
- /* Evaluate _BST */
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+ NULL, &buffer);
+ mutex_unlock(&battery->lock);
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
- &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
}
-
- package = buffer.pointer;
-
- data = &battery->bst_data;
-
- /* Extract Package Data */
-
- result =
- acpi_battery_extract_package(battery, package, &format, data,
- "_BST");
- if (result)
- goto end;
-
- end:
+ result = extract_package(battery, buffer.pointer,
+ state_offsets, ARRAY_SIZE(state_offsets));
kfree(buffer.pointer);
-
return result;
}
@@ -331,14 +290,15 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
if (!acpi_battery_present(battery))
return -ENODEV;
- if (!battery->flags.alarm_present)
+ if (!battery->alarm_present)
return -ENODEV;
arg0.integer.value = alarm;
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
- &arg_list, NULL);
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+ &arg_list, NULL);
+ mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -354,22 +314,21 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
int result = 0;
acpi_status status = AE_OK;
acpi_handle handle = NULL;
- struct acpi_battery_info *bif = battery->bif_data.pointer;
unsigned long alarm = battery->alarm;
/* See if alarms are supported, and if so, set default */
status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
if (ACPI_SUCCESS(status)) {
- battery->flags.alarm_present = 1;
- if (!alarm && bif) {
- alarm = bif->design_capacity_warning;
+ battery->alarm_present = 1;
+ if (!alarm) {
+ alarm = battery->design_capacity_warning;
}
result = acpi_battery_set_alarm(battery, alarm);
if (result)
goto end;
} else {
- battery->flags.alarm_present = 0;
+ battery->alarm_present = 0;
}
end:
@@ -385,7 +344,7 @@ static int acpi_battery_init_update(struct acpi_battery *battery)
if (result)
return result;
- battery->flags.battery_present_prev = acpi_battery_present(battery);
+ battery->present_prev = acpi_battery_present(battery);
if (acpi_battery_present(battery)) {
result = acpi_battery_get_info(battery);
@@ -411,7 +370,7 @@ static int acpi_battery_update(struct acpi_battery *battery,
update = 1;
}
- if (battery->flags.init_update) {
+ if (battery->init_update) {
result = acpi_battery_init_update(battery);
if (result)
goto end;
@@ -420,8 +379,8 @@ static int acpi_battery_update(struct acpi_battery *battery,
result = acpi_battery_get_status(battery);
if (result)
goto end;
- if ((!battery->flags.battery_present_prev & acpi_battery_present(battery))
- || (battery->flags.battery_present_prev & !acpi_battery_present(battery))) {
+ if ((!battery->present_prev & acpi_battery_present(battery))
+ || (battery->present_prev & !acpi_battery_present(battery))) {
result = acpi_battery_init_update(battery);
if (result)
goto end;
@@ -433,7 +392,7 @@ static int acpi_battery_update(struct acpi_battery *battery,
end:
- battery->flags.init_update = (result != 0);
+ battery->init_update = (result != 0);
*update_result_ptr = update_result;
@@ -444,19 +403,19 @@ static void acpi_battery_notify_update(struct acpi_battery *battery)
{
acpi_battery_get_status(battery);
- if (battery->flags.init_update) {
+ if (battery->init_update) {
return;
}
- if ((!battery->flags.battery_present_prev &
+ if ((!battery->present_prev &
acpi_battery_present(battery)) ||
- (battery->flags.battery_present_prev &
+ (battery->present_prev &
!acpi_battery_present(battery))) {
- battery->flags.init_update = 1;
+ battery->init_update = 1;
} else {
- battery->flags.update[ACPI_BATTERY_INFO] = 1;
- battery->flags.update[ACPI_BATTERY_STATE] = 1;
- battery->flags.update[ACPI_BATTERY_ALARM] = 1;
+ battery->update[ACPI_BATTERY_INFO] = 1;
+ battery->update[ACPI_BATTERY_STATE] = 1;
+ battery->update[ACPI_BATTERY_ALARM] = 1;
}
}
@@ -469,7 +428,6 @@ static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- struct acpi_battery_info *bif = NULL;
char *units = "?";
if (result)
@@ -482,30 +440,23 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
goto end;
}
- bif = battery->bif_data.pointer;
- if (!bif) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BIF buffer is NULL"));
- result = -ENODEV;
- goto end;
- }
-
/* Battery Units */
units = acpi_battery_power_units(battery);
- if (bif->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design capacity: %d %sh\n",
- (u32) bif->design_capacity, units);
+ (u32) battery->design_capacity, units);
- if (bif->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- (u32) bif->last_full_capacity, units);
+ (u32) battery->last_full_capacity, units);
- switch ((u32) bif->battery_technology) {
+ switch ((u32) battery->technology) {
case 0:
seq_printf(seq, "battery technology: non-rechargeable\n");
break;
@@ -517,23 +468,23 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
break;
}
- if (bif->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design voltage: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
- (u32) bif->design_voltage);
+ (u32) battery->design_voltage);
seq_printf(seq, "design capacity warning: %d %sh\n",
- (u32) bif->design_capacity_warning, units);
+ (u32) battery->design_capacity_warning, units);
seq_printf(seq, "design capacity low: %d %sh\n",
- (u32) bif->design_capacity_low, units);
+ (u32) battery->design_capacity_low, units);
seq_printf(seq, "capacity granularity 1: %d %sh\n",
- (u32) bif->battery_capacity_granularity_1, units);
+ (u32) battery->capacity_granularity_1, units);
seq_printf(seq, "capacity granularity 2: %d %sh\n",
- (u32) bif->battery_capacity_granularity_2, units);
- seq_printf(seq, "model number: %s\n", bif->model_number);
- seq_printf(seq, "serial number: %s\n", bif->serial_number);
- seq_printf(seq, "battery type: %s\n", bif->battery_type);
- seq_printf(seq, "OEM info: %s\n", bif->oem_info);
+ (u32) battery->capacity_granularity_2, units);
+ seq_printf(seq, "model number: %s\n", battery->model_number);
+ seq_printf(seq, "serial number: %s\n", battery->serial_number);
+ seq_printf(seq, "battery type: %s\n", battery->type);
+ seq_printf(seq, "OEM info: %s\n", battery->oem_info);
end:
@@ -546,7 +497,6 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
static int acpi_battery_print_state(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- struct acpi_battery_state *bst = NULL;
char *units = "?";
if (result)
@@ -559,50 +509,43 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
goto end;
}
- bst = battery->bst_data.pointer;
- if (!bst) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BST buffer is NULL"));
- result = -ENODEV;
- goto end;
- }
-
/* Battery Units */
units = acpi_battery_power_units(battery);
- if (!(bst->state & 0x04))
+ if (!(battery->state & 0x04))
seq_printf(seq, "capacity state: ok\n");
else
seq_printf(seq, "capacity state: critical\n");
- if ((bst->state & 0x01) && (bst->state & 0x02)) {
+ if ((battery->state & 0x01) && (battery->state & 0x02)) {
seq_printf(seq,
"charging state: charging/discharging\n");
- } else if (bst->state & 0x01)
+ } else if (battery->state & 0x01)
seq_printf(seq, "charging state: discharging\n");
- else if (bst->state & 0x02)
+ else if (battery->state & 0x02)
seq_printf(seq, "charging state: charging\n");
else {
seq_printf(seq, "charging state: charged\n");
}
- if (bst->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- (u32) bst->present_rate, units);
+ (u32) battery->present_rate, units);
- if (bst->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- (u32) bst->remaining_capacity, units);
+ (u32) battery->remaining_capacity, units);
- if (bst->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- (u32) bst->present_voltage);
+ (u32) battery->present_voltage);
end:
@@ -658,8 +601,6 @@ acpi_battery_write_alarm(struct file *file,
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
- mutex_lock(&battery->mutex);
-
result = acpi_battery_update(battery, 1, &update_result);
if (result) {
result = -ENODEV;
@@ -689,9 +630,6 @@ acpi_battery_write_alarm(struct file *file,
if (!result)
result = count;
-
- mutex_unlock(&battery->mutex);
-
return result;
}
@@ -714,10 +652,8 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
int update_result = ACPI_BATTERY_NONE_UPDATE;
int update = 0;
- mutex_lock(&battery->mutex);
-
update = (get_seconds() - battery->update_time[fid] >= update_time);
- update = (update | battery->flags.update[fid]);
+ update = (update | battery->update[fid]);
result = acpi_battery_update(battery, update, &update_result);
if (result)
@@ -732,8 +668,7 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
end:
result = acpi_read_funcs[fid].print(seq, result);
acpi_battery_check_result(battery, result);
- battery->flags.update[fid] = result;
- mutex_unlock(&battery->mutex);
+ battery->update[fid] = result;
return result;
}
@@ -900,20 +835,16 @@ static int acpi_battery_add(struct acpi_device *device)
if (!battery)
return -ENOMEM;
- mutex_init(&battery->mutex);
-
- mutex_lock(&battery->mutex);
-
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
-
+ mutex_init(&battery->lock);
result = acpi_battery_get_status(battery);
if (result)
goto end;
- battery->flags.init_update = 1;
+ battery->init_update = 1;
result = acpi_battery_add_fs(device);
if (result)
@@ -939,8 +870,6 @@ static int acpi_battery_add(struct acpi_device *device)
kfree(battery);
}
- mutex_unlock(&battery->mutex);
-
return result;
}
@@ -954,22 +883,12 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
battery = acpi_driver_data(device);
- mutex_lock(&battery->mutex);
-
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
acpi_battery_remove_fs(device);
-
- kfree(battery->bif_data.pointer);
-
- kfree(battery->bst_data.pointer);
-
- mutex_unlock(&battery->mutex);
-
- mutex_destroy(&battery->mutex);
-
+ mutex_destroy(&battery->lock);
kfree(battery);
return 0;
@@ -985,7 +904,7 @@ static int acpi_battery_resume(struct acpi_device *device)
battery = device->driver_data;
- battery->flags.init_update = 1;
+ battery->init_update = 1;
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 05/32] ACPI: Battery: don't use acpi_extract_package()
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
acpi_extract_package() creates more problems with memory management than
solves as helper for package handling.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 359 +++++++++++++++++++-----------------------------
1 files changed, 139 insertions(+), 220 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 9b2c0f7..de506f3 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -36,9 +36,6 @@
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
-#define ACPI_BATTERY_FORMAT_BIF "NNNNNNNNNSSSS"
-#define ACPI_BATTERY_FORMAT_BST "NNNN"
-
#define ACPI_BATTERY_COMPONENT 0x00040000
#define ACPI_BATTERY_CLASS "battery"
#define ACPI_BATTERY_DEVICE_NAME "Battery"
@@ -90,61 +87,49 @@ static struct acpi_driver acpi_battery_driver = {
},
};
-struct acpi_battery_state {
- acpi_integer state;
- acpi_integer present_rate;
- acpi_integer remaining_capacity;
- acpi_integer present_voltage;
-};
-
-struct acpi_battery_info {
- acpi_integer power_unit;
- acpi_integer design_capacity;
- acpi_integer last_full_capacity;
- acpi_integer battery_technology;
- acpi_integer design_voltage;
- acpi_integer design_capacity_warning;
- acpi_integer design_capacity_low;
- acpi_integer battery_capacity_granularity_1;
- acpi_integer battery_capacity_granularity_2;
- acpi_string model_number;
- acpi_string serial_number;
- acpi_string battery_type;
- acpi_string oem_info;
-};
-
-enum acpi_battery_files{
+enum acpi_battery_files {
ACPI_BATTERY_INFO = 0,
ACPI_BATTERY_STATE,
ACPI_BATTERY_ALARM,
ACPI_BATTERY_NUMFILES,
};
-struct acpi_battery_flags {
- u8 battery_present_prev;
- u8 alarm_present;
- u8 init_update;
- u8 update[ACPI_BATTERY_NUMFILES];
- u8 power_unit;
-};
-
struct acpi_battery {
- struct mutex mutex;
struct acpi_device *device;
- struct acpi_battery_flags flags;
- struct acpi_buffer bif_data;
- struct acpi_buffer bst_data;
+ struct mutex lock;
unsigned long alarm;
unsigned long update_time[ACPI_BATTERY_NUMFILES];
+ int state;
+ int present_rate;
+ int remaining_capacity;
+ int present_voltage;
+ int power_unit;
+ int design_capacity;
+ int last_full_capacity;
+ int technology;
+ int design_voltage;
+ int design_capacity_warning;
+ int design_capacity_low;
+ int capacity_granularity_1;
+ int capacity_granularity_2;
+ char model_number[32];
+ char serial_number[32];
+ char type[32];
+ char oem_info[32];
+ u8 present_prev;
+ u8 alarm_present;
+ u8 init_update;
+ u8 update[ACPI_BATTERY_NUMFILES];
};
inline int acpi_battery_present(struct acpi_battery *battery)
{
return battery->device->status.battery_present;
}
+
inline char *acpi_battery_power_units(struct acpi_battery *battery)
{
- if (battery->flags.power_unit)
+ if (battery->power_unit)
return ACPI_BATTERY_UNITS_AMPS;
else
return ACPI_BATTERY_UNITS_WATTS;
@@ -165,43 +150,63 @@ static void acpi_battery_check_result(struct acpi_battery *battery, int result)
return;
if (result) {
- battery->flags.init_update = 1;
+ battery->init_update = 1;
}
}
-static int acpi_battery_extract_package(struct acpi_battery *battery,
- union acpi_object *package,
- struct acpi_buffer *format,
- struct acpi_buffer *data,
- char *package_name)
-{
- acpi_status status = AE_OK;
- struct acpi_buffer data_null = { 0, NULL };
+struct acpi_offsets {
+ size_t offset; /* offset inside struct acpi_sbs_battery */
+ u8 mode; /* int or string? */
+};
- status = acpi_extract_package(package, format, &data_null);
- if (status != AE_BUFFER_OVERFLOW) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting size %s",
- package_name));
- return -ENODEV;
- }
+static struct acpi_offsets state_offsets[] = {
+ {offsetof(struct acpi_battery, state), 0},
+ {offsetof(struct acpi_battery, present_rate), 0},
+ {offsetof(struct acpi_battery, remaining_capacity), 0},
+ {offsetof(struct acpi_battery, present_voltage), 0},
+};
- if (data_null.length != data->length) {
- kfree(data->pointer);
- data->pointer = kzalloc(data_null.length, GFP_KERNEL);
- if (!data->pointer) {
- ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY, "kzalloc()"));
- return -ENOMEM;
- }
- data->length = data_null.length;
- }
+static struct acpi_offsets info_offsets[] = {
+ {offsetof(struct acpi_battery, power_unit), 0},
+ {offsetof(struct acpi_battery, design_capacity), 0},
+ {offsetof(struct acpi_battery, last_full_capacity), 0},
+ {offsetof(struct acpi_battery, technology), 0},
+ {offsetof(struct acpi_battery, design_voltage), 0},
+ {offsetof(struct acpi_battery, design_capacity_warning), 0},
+ {offsetof(struct acpi_battery, design_capacity_low), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_1), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_2), 0},
+ {offsetof(struct acpi_battery, model_number), 1},
+ {offsetof(struct acpi_battery, serial_number), 1},
+ {offsetof(struct acpi_battery, type), 1},
+ {offsetof(struct acpi_battery, oem_info), 1},
+};
- status = acpi_extract_package(package, format, data);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Extracting %s",
- package_name));
- return -ENODEV;
+static int extract_package(struct acpi_battery *battery,
+ union acpi_object *package,
+ struct acpi_offsets *offsets, int num)
+{
+ int i, *x;
+ union acpi_object *element;
+ if (package->type != ACPI_TYPE_PACKAGE)
+ return -EFAULT;
+ for (i = 0; i < num; ++i) {
+ if (package->package.count <= i)
+ return -EFAULT;
+ element = &package->package.elements[i];
+ if (offsets[i].mode) {
+ if (element->type != ACPI_TYPE_STRING &&
+ element->type != ACPI_TYPE_BUFFER)
+ return -EFAULT;
+ strncpy((u8 *)battery + offsets[i].offset,
+ element->string.pointer, 32);
+ } else {
+ if (element->type != ACPI_TYPE_INTEGER)
+ return -EFAULT;
+ x = (int *)((u8 *)battery + offsets[i].offset);
+ *x = element->integer.value;
+ }
}
-
return 0;
}
@@ -222,49 +227,21 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
int result = 0;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BIF),
- ACPI_BATTERY_FORMAT_BIF
- };
- union acpi_object *package = NULL;
- struct acpi_buffer *data = NULL;
- struct acpi_battery_info *bif = NULL;
battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
-
if (!acpi_battery_present(battery))
return 0;
-
- /* Evaluate _BIF */
-
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL,
- &buffer);
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+ NULL, &buffer);
+ mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
}
-
- package = buffer.pointer;
-
- data = &battery->bif_data;
-
- /* Extract Package Data */
-
- result =
- acpi_battery_extract_package(battery, package, &format, data,
- "_BIF");
- if (result)
- goto end;
-
- end:
-
+ result = extract_package(battery, buffer.pointer,
+ info_offsets, ARRAY_SIZE(info_offsets));
kfree(buffer.pointer);
-
- if (!result) {
- bif = data->pointer;
- battery->flags.power_unit = bif->power_unit;
- }
-
return result;
}
@@ -273,42 +250,24 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
int result = 0;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BST),
- ACPI_BATTERY_FORMAT_BST
- };
- union acpi_object *package = NULL;
- struct acpi_buffer *data = NULL;
battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
if (!acpi_battery_present(battery))
return 0;
- /* Evaluate _BST */
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+ NULL, &buffer);
+ mutex_unlock(&battery->lock);
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL,
- &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
}
-
- package = buffer.pointer;
-
- data = &battery->bst_data;
-
- /* Extract Package Data */
-
- result =
- acpi_battery_extract_package(battery, package, &format, data,
- "_BST");
- if (result)
- goto end;
-
- end:
+ result = extract_package(battery, buffer.pointer,
+ state_offsets, ARRAY_SIZE(state_offsets));
kfree(buffer.pointer);
-
return result;
}
@@ -331,14 +290,15 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
if (!acpi_battery_present(battery))
return -ENODEV;
- if (!battery->flags.alarm_present)
+ if (!battery->alarm_present)
return -ENODEV;
arg0.integer.value = alarm;
- status =
- acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
- &arg_list, NULL);
+ mutex_lock(&battery->lock);
+ status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
+ &arg_list, NULL);
+ mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -354,22 +314,21 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
int result = 0;
acpi_status status = AE_OK;
acpi_handle handle = NULL;
- struct acpi_battery_info *bif = battery->bif_data.pointer;
unsigned long alarm = battery->alarm;
/* See if alarms are supported, and if so, set default */
status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
if (ACPI_SUCCESS(status)) {
- battery->flags.alarm_present = 1;
- if (!alarm && bif) {
- alarm = bif->design_capacity_warning;
+ battery->alarm_present = 1;
+ if (!alarm) {
+ alarm = battery->design_capacity_warning;
}
result = acpi_battery_set_alarm(battery, alarm);
if (result)
goto end;
} else {
- battery->flags.alarm_present = 0;
+ battery->alarm_present = 0;
}
end:
@@ -385,7 +344,7 @@ static int acpi_battery_init_update(struct acpi_battery *battery)
if (result)
return result;
- battery->flags.battery_present_prev = acpi_battery_present(battery);
+ battery->present_prev = acpi_battery_present(battery);
if (acpi_battery_present(battery)) {
result = acpi_battery_get_info(battery);
@@ -411,7 +370,7 @@ static int acpi_battery_update(struct acpi_battery *battery,
update = 1;
}
- if (battery->flags.init_update) {
+ if (battery->init_update) {
result = acpi_battery_init_update(battery);
if (result)
goto end;
@@ -420,8 +379,8 @@ static int acpi_battery_update(struct acpi_battery *battery,
result = acpi_battery_get_status(battery);
if (result)
goto end;
- if ((!battery->flags.battery_present_prev & acpi_battery_present(battery))
- || (battery->flags.battery_present_prev & !acpi_battery_present(battery))) {
+ if ((!battery->present_prev & acpi_battery_present(battery))
+ || (battery->present_prev & !acpi_battery_present(battery))) {
result = acpi_battery_init_update(battery);
if (result)
goto end;
@@ -433,7 +392,7 @@ static int acpi_battery_update(struct acpi_battery *battery,
end:
- battery->flags.init_update = (result != 0);
+ battery->init_update = (result != 0);
*update_result_ptr = update_result;
@@ -444,19 +403,19 @@ static void acpi_battery_notify_update(struct acpi_battery *battery)
{
acpi_battery_get_status(battery);
- if (battery->flags.init_update) {
+ if (battery->init_update) {
return;
}
- if ((!battery->flags.battery_present_prev &
+ if ((!battery->present_prev &
acpi_battery_present(battery)) ||
- (battery->flags.battery_present_prev &
+ (battery->present_prev &
!acpi_battery_present(battery))) {
- battery->flags.init_update = 1;
+ battery->init_update = 1;
} else {
- battery->flags.update[ACPI_BATTERY_INFO] = 1;
- battery->flags.update[ACPI_BATTERY_STATE] = 1;
- battery->flags.update[ACPI_BATTERY_ALARM] = 1;
+ battery->update[ACPI_BATTERY_INFO] = 1;
+ battery->update[ACPI_BATTERY_STATE] = 1;
+ battery->update[ACPI_BATTERY_ALARM] = 1;
}
}
@@ -469,7 +428,6 @@ static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- struct acpi_battery_info *bif = NULL;
char *units = "?";
if (result)
@@ -482,30 +440,23 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
goto end;
}
- bif = battery->bif_data.pointer;
- if (!bif) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BIF buffer is NULL"));
- result = -ENODEV;
- goto end;
- }
-
/* Battery Units */
units = acpi_battery_power_units(battery);
- if (bif->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design capacity: %d %sh\n",
- (u32) bif->design_capacity, units);
+ (u32) battery->design_capacity, units);
- if (bif->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- (u32) bif->last_full_capacity, units);
+ (u32) battery->last_full_capacity, units);
- switch ((u32) bif->battery_technology) {
+ switch ((u32) battery->technology) {
case 0:
seq_printf(seq, "battery technology: non-rechargeable\n");
break;
@@ -517,23 +468,23 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
break;
}
- if (bif->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design voltage: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
- (u32) bif->design_voltage);
+ (u32) battery->design_voltage);
seq_printf(seq, "design capacity warning: %d %sh\n",
- (u32) bif->design_capacity_warning, units);
+ (u32) battery->design_capacity_warning, units);
seq_printf(seq, "design capacity low: %d %sh\n",
- (u32) bif->design_capacity_low, units);
+ (u32) battery->design_capacity_low, units);
seq_printf(seq, "capacity granularity 1: %d %sh\n",
- (u32) bif->battery_capacity_granularity_1, units);
+ (u32) battery->capacity_granularity_1, units);
seq_printf(seq, "capacity granularity 2: %d %sh\n",
- (u32) bif->battery_capacity_granularity_2, units);
- seq_printf(seq, "model number: %s\n", bif->model_number);
- seq_printf(seq, "serial number: %s\n", bif->serial_number);
- seq_printf(seq, "battery type: %s\n", bif->battery_type);
- seq_printf(seq, "OEM info: %s\n", bif->oem_info);
+ (u32) battery->capacity_granularity_2, units);
+ seq_printf(seq, "model number: %s\n", battery->model_number);
+ seq_printf(seq, "serial number: %s\n", battery->serial_number);
+ seq_printf(seq, "battery type: %s\n", battery->type);
+ seq_printf(seq, "OEM info: %s\n", battery->oem_info);
end:
@@ -546,7 +497,6 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
static int acpi_battery_print_state(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- struct acpi_battery_state *bst = NULL;
char *units = "?";
if (result)
@@ -559,50 +509,43 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
goto end;
}
- bst = battery->bst_data.pointer;
- if (!bst) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "BST buffer is NULL"));
- result = -ENODEV;
- goto end;
- }
-
/* Battery Units */
units = acpi_battery_power_units(battery);
- if (!(bst->state & 0x04))
+ if (!(battery->state & 0x04))
seq_printf(seq, "capacity state: ok\n");
else
seq_printf(seq, "capacity state: critical\n");
- if ((bst->state & 0x01) && (bst->state & 0x02)) {
+ if ((battery->state & 0x01) && (battery->state & 0x02)) {
seq_printf(seq,
"charging state: charging/discharging\n");
- } else if (bst->state & 0x01)
+ } else if (battery->state & 0x01)
seq_printf(seq, "charging state: discharging\n");
- else if (bst->state & 0x02)
+ else if (battery->state & 0x02)
seq_printf(seq, "charging state: charging\n");
else {
seq_printf(seq, "charging state: charged\n");
}
- if (bst->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- (u32) bst->present_rate, units);
+ (u32) battery->present_rate, units);
- if (bst->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- (u32) bst->remaining_capacity, units);
+ (u32) battery->remaining_capacity, units);
- if (bst->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- (u32) bst->present_voltage);
+ (u32) battery->present_voltage);
end:
@@ -658,8 +601,6 @@ acpi_battery_write_alarm(struct file *file,
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
- mutex_lock(&battery->mutex);
-
result = acpi_battery_update(battery, 1, &update_result);
if (result) {
result = -ENODEV;
@@ -689,9 +630,6 @@ acpi_battery_write_alarm(struct file *file,
if (!result)
result = count;
-
- mutex_unlock(&battery->mutex);
-
return result;
}
@@ -714,10 +652,8 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
int update_result = ACPI_BATTERY_NONE_UPDATE;
int update = 0;
- mutex_lock(&battery->mutex);
-
update = (get_seconds() - battery->update_time[fid] >= update_time);
- update = (update | battery->flags.update[fid]);
+ update = (update | battery->update[fid]);
result = acpi_battery_update(battery, update, &update_result);
if (result)
@@ -732,8 +668,7 @@ static int acpi_battery_read(int fid, struct seq_file *seq)
end:
result = acpi_read_funcs[fid].print(seq, result);
acpi_battery_check_result(battery, result);
- battery->flags.update[fid] = result;
- mutex_unlock(&battery->mutex);
+ battery->update[fid] = result;
return result;
}
@@ -900,20 +835,16 @@ static int acpi_battery_add(struct acpi_device *device)
if (!battery)
return -ENOMEM;
- mutex_init(&battery->mutex);
-
- mutex_lock(&battery->mutex);
-
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
-
+ mutex_init(&battery->lock);
result = acpi_battery_get_status(battery);
if (result)
goto end;
- battery->flags.init_update = 1;
+ battery->init_update = 1;
result = acpi_battery_add_fs(device);
if (result)
@@ -939,8 +870,6 @@ static int acpi_battery_add(struct acpi_device *device)
kfree(battery);
}
- mutex_unlock(&battery->mutex);
-
return result;
}
@@ -954,22 +883,12 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
battery = acpi_driver_data(device);
- mutex_lock(&battery->mutex);
-
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
acpi_battery_remove_fs(device);
-
- kfree(battery->bif_data.pointer);
-
- kfree(battery->bst_data.pointer);
-
- mutex_unlock(&battery->mutex);
-
- mutex_destroy(&battery->mutex);
-
+ mutex_destroy(&battery->lock);
kfree(battery);
return 0;
@@ -985,7 +904,7 @@ static int acpi_battery_resume(struct acpi_device *device)
battery = device->driver_data;
- battery->flags.init_update = 1;
+ battery->init_update = 1;
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 06/32] ACPI: Battery: simplify update scheme
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 280 ++++++++++--------------------------------------
1 files changed, 57 insertions(+), 223 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index de506f3..faa70a5 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
+#include <linux/jiffies.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
@@ -41,27 +42,18 @@
#define ACPI_BATTERY_DEVICE_NAME "Battery"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
#define ACPI_BATTERY_NOTIFY_INFO 0x81
-#define ACPI_BATTERY_UNITS_WATTS "mW"
-#define ACPI_BATTERY_UNITS_AMPS "mA"
#define _COMPONENT ACPI_BATTERY_COMPONENT
-#define ACPI_BATTERY_UPDATE_TIME 0
-
-#define ACPI_BATTERY_NONE_UPDATE 0
-#define ACPI_BATTERY_EASY_UPDATE 1
-#define ACPI_BATTERY_INIT_UPDATE 2
-
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
-static unsigned int update_time = ACPI_BATTERY_UPDATE_TIME;
-
-/* 0 - every time, > 0 - by update_time */
-module_param(update_time, uint, 0644);
+static unsigned int cache_time = 1000;
+module_param(cache_time, uint, 0644);
+MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
@@ -95,15 +87,12 @@ enum acpi_battery_files {
};
struct acpi_battery {
- struct acpi_device *device;
struct mutex lock;
- unsigned long alarm;
- unsigned long update_time[ACPI_BATTERY_NUMFILES];
- int state;
+ struct acpi_device *device;
+ unsigned long update_time;
int present_rate;
int remaining_capacity;
int present_voltage;
- int power_unit;
int design_capacity;
int last_full_capacity;
int technology;
@@ -112,14 +101,14 @@ struct acpi_battery {
int design_capacity_low;
int capacity_granularity_1;
int capacity_granularity_2;
+ int alarm;
char model_number[32];
char serial_number[32];
char type[32];
char oem_info[32];
- u8 present_prev;
+ int state;
+ int power_unit;
u8 alarm_present;
- u8 init_update;
- u8 update[ACPI_BATTERY_NUMFILES];
};
inline int acpi_battery_present(struct acpi_battery *battery)
@@ -127,33 +116,15 @@ inline int acpi_battery_present(struct acpi_battery *battery)
return battery->device->status.battery_present;
}
-inline char *acpi_battery_power_units(struct acpi_battery *battery)
+inline char *acpi_battery_units(struct acpi_battery *battery)
{
- if (battery->power_unit)
- return ACPI_BATTERY_UNITS_AMPS;
- else
- return ACPI_BATTERY_UNITS_WATTS;
-}
-
-inline acpi_handle acpi_battery_handle(struct acpi_battery *battery)
-{
- return battery->device->handle;
+ return (battery->power_unit)?"mA":"mW";
}
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
-static void acpi_battery_check_result(struct acpi_battery *battery, int result)
-{
- if (!battery)
- return;
-
- if (result) {
- battery->init_update = 1;
- }
-}
-
struct acpi_offsets {
size_t offset; /* offset inside struct acpi_sbs_battery */
u8 mode; /* int or string? */
@@ -228,11 +199,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
if (!acpi_battery_present(battery))
return 0;
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+ status = acpi_evaluate_object(battery->device->handle, "_BIF",
NULL, &buffer);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status)) {
@@ -251,13 +221,16 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
-
if (!acpi_battery_present(battery))
return 0;
+ if (battery->update_time &&
+ time_before(jiffies, battery->update_time +
+ msecs_to_jiffies(cache_time)))
+ return 0;
+
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+ status = acpi_evaluate_object(battery->device->handle, "_BST",
NULL, &buffer);
mutex_unlock(&battery->lock);
@@ -267,14 +240,13 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = extract_package(battery, buffer.pointer,
state_offsets, ARRAY_SIZE(state_offsets));
+ battery->update_time = jiffies;
kfree(buffer.pointer);
return result;
}
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
-
return 0;
}
@@ -285,8 +257,6 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
-
if (!acpi_battery_present(battery))
return -ENODEV;
@@ -296,8 +266,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
arg0.integer.value = alarm;
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
- &arg_list, NULL);
+ status = acpi_evaluate_object(battery->device->handle, "_BTP",
+ &arg_list, NULL);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -311,112 +281,36 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
static int acpi_battery_init_alarm(struct acpi_battery *battery)
{
- int result = 0;
acpi_status status = AE_OK;
acpi_handle handle = NULL;
- unsigned long alarm = battery->alarm;
/* See if alarms are supported, and if so, set default */
-
- status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
- if (ACPI_SUCCESS(status)) {
- battery->alarm_present = 1;
- if (!alarm) {
- alarm = battery->design_capacity_warning;
- }
- result = acpi_battery_set_alarm(battery, alarm);
- if (result)
- goto end;
- } else {
+ status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
+ if (ACPI_FAILURE(status)) {
battery->alarm_present = 0;
+ return 0;
}
-
- end:
-
- return result;
+ battery->alarm_present = 1;
+ if (!battery->alarm)
+ battery->alarm = battery->design_capacity_warning;
+ return acpi_battery_set_alarm(battery, battery->alarm);
}
-static int acpi_battery_init_update(struct acpi_battery *battery)
+static int acpi_battery_update(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_battery_get_status(battery);
- if (result)
+ int saved_present = acpi_battery_present(battery);
+ int result = acpi_battery_get_status(battery);
+ if (result || !acpi_battery_present(battery))
return result;
-
- battery->present_prev = acpi_battery_present(battery);
-
- if (acpi_battery_present(battery)) {
+ if (saved_present != acpi_battery_present(battery) ||
+ !battery->update_time) {
+ battery->update_time = 0;
result = acpi_battery_get_info(battery);
if (result)
return result;
- result = acpi_battery_get_state(battery);
- if (result)
- return result;
-
acpi_battery_init_alarm(battery);
}
-
- return result;
-}
-
-static int acpi_battery_update(struct acpi_battery *battery,
- int update, int *update_result_ptr)
-{
- int result = 0;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
-
- if (!acpi_battery_present(battery)) {
- update = 1;
- }
-
- if (battery->init_update) {
- result = acpi_battery_init_update(battery);
- if (result)
- goto end;
- update_result = ACPI_BATTERY_INIT_UPDATE;
- } else if (update) {
- result = acpi_battery_get_status(battery);
- if (result)
- goto end;
- if ((!battery->present_prev & acpi_battery_present(battery))
- || (battery->present_prev & !acpi_battery_present(battery))) {
- result = acpi_battery_init_update(battery);
- if (result)
- goto end;
- update_result = ACPI_BATTERY_INIT_UPDATE;
- } else {
- update_result = ACPI_BATTERY_EASY_UPDATE;
- }
- }
-
- end:
-
- battery->init_update = (result != 0);
-
- *update_result_ptr = update_result;
-
- return result;
-}
-
-static void acpi_battery_notify_update(struct acpi_battery *battery)
-{
- acpi_battery_get_status(battery);
-
- if (battery->init_update) {
- return;
- }
-
- if ((!battery->present_prev &
- acpi_battery_present(battery)) ||
- (battery->present_prev &
- !acpi_battery_present(battery))) {
- battery->init_update = 1;
- } else {
- battery->update[ACPI_BATTERY_INFO] = 1;
- battery->update[ACPI_BATTERY_STATE] = 1;
- battery->update[ACPI_BATTERY_ALARM] = 1;
- }
+ return acpi_battery_get_state(battery);
}
/* --------------------------------------------------------------------------
@@ -442,7 +336,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
@@ -511,7 +405,7 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
if (!(battery->state & 0x04))
seq_printf(seq, "capacity state: ok\n");
@@ -571,13 +465,13 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
seq_printf(seq, "alarm: ");
if (!battery->alarm)
seq_printf(seq, "unsupported\n");
else
- seq_printf(seq, "%lu %sh\n", battery->alarm, units);
+ seq_printf(seq, "%u %sh\n", battery->alarm, units);
end:
@@ -587,49 +481,35 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
return result;
}
-static ssize_t
-acpi_battery_write_alarm(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
+static ssize_t acpi_battery_write_alarm(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
int result = 0;
char alarm_string[12] = { '\0' };
struct seq_file *m = file->private_data;
struct acpi_battery *battery = m->private;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
-
- result = acpi_battery_update(battery, 1, &update_result);
if (result) {
result = -ENODEV;
goto end;
}
-
if (!acpi_battery_present(battery)) {
result = -ENODEV;
goto end;
}
-
if (copy_from_user(alarm_string, buffer, count)) {
result = -EFAULT;
goto end;
}
-
alarm_string[count] = '\0';
-
- result = acpi_battery_set_alarm(battery,
- simple_strtoul(alarm_string, NULL, 0));
- if (result)
- goto end;
-
+ battery->alarm = simple_strtol(alarm_string, NULL, 0);
+ result = acpi_battery_set_alarm(battery, battery->alarm);
end:
-
- acpi_battery_check_result(battery, result);
-
if (!result)
- result = count;
+ return count;
return result;
}
@@ -648,28 +528,8 @@ static struct acpi_read_mux {
static int acpi_battery_read(int fid, struct seq_file *seq)
{
struct acpi_battery *battery = seq->private;
- int result = 0;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
- int update = 0;
-
- update = (get_seconds() - battery->update_time[fid] >= update_time);
- update = (update | battery->update[fid]);
-
- result = acpi_battery_update(battery, update, &update_result);
- if (result)
- goto end;
-
- if (update_result == ACPI_BATTERY_EASY_UPDATE) {
- result = acpi_read_funcs[fid].get(battery);
- if (result)
- goto end;
- }
-
- end:
- result = acpi_read_funcs[fid].print(seq, result);
- acpi_battery_check_result(battery, result);
- battery->update[fid] = result;
- return result;
+ int result = acpi_battery_update(battery);
+ return acpi_read_funcs[fid].print(seq, result);
}
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
@@ -793,33 +653,16 @@ static int acpi_battery_remove_fs(struct acpi_device *device)
static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
{
struct acpi_battery *battery = data;
- struct acpi_device *device = NULL;
-
+ struct acpi_device *device;
if (!battery)
return;
-
device = battery->device;
-
- switch (event) {
- case ACPI_BATTERY_NOTIFY_STATUS:
- case ACPI_BATTERY_NOTIFY_INFO:
- case ACPI_NOTIFY_BUS_CHECK:
- case ACPI_NOTIFY_DEVICE_CHECK:
- device = battery->device;
- acpi_battery_notify_update(battery);
- acpi_bus_generate_proc_event(device, event,
+ acpi_battery_update(battery);
+ acpi_bus_generate_proc_event(device, event,
+ acpi_battery_present(battery));
+ acpi_bus_generate_netlink_event(device->pnp.device_class,
+ device->dev.bus_id, event,
acpi_battery_present(battery));
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event,
- acpi_battery_present(battery));
- break;
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
- break;
- }
-
- return;
}
static int acpi_battery_add(struct acpi_device *device)
@@ -840,12 +683,7 @@ static int acpi_battery_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
mutex_init(&battery->lock);
- result = acpi_battery_get_status(battery);
- if (result)
- goto end;
-
- battery->init_update = 1;
-
+ acpi_battery_update(battery);
result = acpi_battery_add_fs(device);
if (result)
goto end;
@@ -898,14 +736,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
static int acpi_battery_resume(struct acpi_device *device)
{
struct acpi_battery *battery;
-
if (!device)
return -EINVAL;
-
- battery = device->driver_data;
-
- battery->init_update = 1;
-
+ battery = acpi_driver_data(device);
+ battery->update_time = 0;
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 06/32] ACPI: Battery: simplify update scheme
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 280 ++++++++++--------------------------------------
1 files changed, 57 insertions(+), 223 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index de506f3..faa70a5 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
+#include <linux/jiffies.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
@@ -41,27 +42,18 @@
#define ACPI_BATTERY_DEVICE_NAME "Battery"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
#define ACPI_BATTERY_NOTIFY_INFO 0x81
-#define ACPI_BATTERY_UNITS_WATTS "mW"
-#define ACPI_BATTERY_UNITS_AMPS "mA"
#define _COMPONENT ACPI_BATTERY_COMPONENT
-#define ACPI_BATTERY_UPDATE_TIME 0
-
-#define ACPI_BATTERY_NONE_UPDATE 0
-#define ACPI_BATTERY_EASY_UPDATE 1
-#define ACPI_BATTERY_INIT_UPDATE 2
-
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
-static unsigned int update_time = ACPI_BATTERY_UPDATE_TIME;
-
-/* 0 - every time, > 0 - by update_time */
-module_param(update_time, uint, 0644);
+static unsigned int cache_time = 1000;
+module_param(cache_time, uint, 0644);
+MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
@@ -95,15 +87,12 @@ enum acpi_battery_files {
};
struct acpi_battery {
- struct acpi_device *device;
struct mutex lock;
- unsigned long alarm;
- unsigned long update_time[ACPI_BATTERY_NUMFILES];
- int state;
+ struct acpi_device *device;
+ unsigned long update_time;
int present_rate;
int remaining_capacity;
int present_voltage;
- int power_unit;
int design_capacity;
int last_full_capacity;
int technology;
@@ -112,14 +101,14 @@ struct acpi_battery {
int design_capacity_low;
int capacity_granularity_1;
int capacity_granularity_2;
+ int alarm;
char model_number[32];
char serial_number[32];
char type[32];
char oem_info[32];
- u8 present_prev;
+ int state;
+ int power_unit;
u8 alarm_present;
- u8 init_update;
- u8 update[ACPI_BATTERY_NUMFILES];
};
inline int acpi_battery_present(struct acpi_battery *battery)
@@ -127,33 +116,15 @@ inline int acpi_battery_present(struct acpi_battery *battery)
return battery->device->status.battery_present;
}
-inline char *acpi_battery_power_units(struct acpi_battery *battery)
+inline char *acpi_battery_units(struct acpi_battery *battery)
{
- if (battery->power_unit)
- return ACPI_BATTERY_UNITS_AMPS;
- else
- return ACPI_BATTERY_UNITS_WATTS;
-}
-
-inline acpi_handle acpi_battery_handle(struct acpi_battery *battery)
-{
- return battery->device->handle;
+ return (battery->power_unit)?"mA":"mW";
}
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
-static void acpi_battery_check_result(struct acpi_battery *battery, int result)
-{
- if (!battery)
- return;
-
- if (result) {
- battery->init_update = 1;
- }
-}
-
struct acpi_offsets {
size_t offset; /* offset inside struct acpi_sbs_battery */
u8 mode; /* int or string? */
@@ -228,11 +199,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- battery->update_time[ACPI_BATTERY_INFO] = get_seconds();
if (!acpi_battery_present(battery))
return 0;
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF",
+ status = acpi_evaluate_object(battery->device->handle, "_BIF",
NULL, &buffer);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status)) {
@@ -251,13 +221,16 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- battery->update_time[ACPI_BATTERY_STATE] = get_seconds();
-
if (!acpi_battery_present(battery))
return 0;
+ if (battery->update_time &&
+ time_before(jiffies, battery->update_time +
+ msecs_to_jiffies(cache_time)))
+ return 0;
+
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST",
+ status = acpi_evaluate_object(battery->device->handle, "_BST",
NULL, &buffer);
mutex_unlock(&battery->lock);
@@ -267,14 +240,13 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = extract_package(battery, buffer.pointer,
state_offsets, ARRAY_SIZE(state_offsets));
+ battery->update_time = jiffies;
kfree(buffer.pointer);
return result;
}
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
-
return 0;
}
@@ -285,8 +257,6 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- battery->update_time[ACPI_BATTERY_ALARM] = get_seconds();
-
if (!acpi_battery_present(battery))
return -ENODEV;
@@ -296,8 +266,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
arg0.integer.value = alarm;
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP",
- &arg_list, NULL);
+ status = acpi_evaluate_object(battery->device->handle, "_BTP",
+ &arg_list, NULL);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -311,112 +281,36 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
static int acpi_battery_init_alarm(struct acpi_battery *battery)
{
- int result = 0;
acpi_status status = AE_OK;
acpi_handle handle = NULL;
- unsigned long alarm = battery->alarm;
/* See if alarms are supported, and if so, set default */
-
- status = acpi_get_handle(acpi_battery_handle(battery), "_BTP", &handle);
- if (ACPI_SUCCESS(status)) {
- battery->alarm_present = 1;
- if (!alarm) {
- alarm = battery->design_capacity_warning;
- }
- result = acpi_battery_set_alarm(battery, alarm);
- if (result)
- goto end;
- } else {
+ status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
+ if (ACPI_FAILURE(status)) {
battery->alarm_present = 0;
+ return 0;
}
-
- end:
-
- return result;
+ battery->alarm_present = 1;
+ if (!battery->alarm)
+ battery->alarm = battery->design_capacity_warning;
+ return acpi_battery_set_alarm(battery, battery->alarm);
}
-static int acpi_battery_init_update(struct acpi_battery *battery)
+static int acpi_battery_update(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_battery_get_status(battery);
- if (result)
+ int saved_present = acpi_battery_present(battery);
+ int result = acpi_battery_get_status(battery);
+ if (result || !acpi_battery_present(battery))
return result;
-
- battery->present_prev = acpi_battery_present(battery);
-
- if (acpi_battery_present(battery)) {
+ if (saved_present != acpi_battery_present(battery) ||
+ !battery->update_time) {
+ battery->update_time = 0;
result = acpi_battery_get_info(battery);
if (result)
return result;
- result = acpi_battery_get_state(battery);
- if (result)
- return result;
-
acpi_battery_init_alarm(battery);
}
-
- return result;
-}
-
-static int acpi_battery_update(struct acpi_battery *battery,
- int update, int *update_result_ptr)
-{
- int result = 0;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
-
- if (!acpi_battery_present(battery)) {
- update = 1;
- }
-
- if (battery->init_update) {
- result = acpi_battery_init_update(battery);
- if (result)
- goto end;
- update_result = ACPI_BATTERY_INIT_UPDATE;
- } else if (update) {
- result = acpi_battery_get_status(battery);
- if (result)
- goto end;
- if ((!battery->present_prev & acpi_battery_present(battery))
- || (battery->present_prev & !acpi_battery_present(battery))) {
- result = acpi_battery_init_update(battery);
- if (result)
- goto end;
- update_result = ACPI_BATTERY_INIT_UPDATE;
- } else {
- update_result = ACPI_BATTERY_EASY_UPDATE;
- }
- }
-
- end:
-
- battery->init_update = (result != 0);
-
- *update_result_ptr = update_result;
-
- return result;
-}
-
-static void acpi_battery_notify_update(struct acpi_battery *battery)
-{
- acpi_battery_get_status(battery);
-
- if (battery->init_update) {
- return;
- }
-
- if ((!battery->present_prev &
- acpi_battery_present(battery)) ||
- (battery->present_prev &
- !acpi_battery_present(battery))) {
- battery->init_update = 1;
- } else {
- battery->update[ACPI_BATTERY_INFO] = 1;
- battery->update[ACPI_BATTERY_STATE] = 1;
- battery->update[ACPI_BATTERY_ALARM] = 1;
- }
+ return acpi_battery_get_state(battery);
}
/* --------------------------------------------------------------------------
@@ -442,7 +336,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
@@ -511,7 +405,7 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
if (!(battery->state & 0x04))
seq_printf(seq, "capacity state: ok\n");
@@ -571,13 +465,13 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
/* Battery Units */
- units = acpi_battery_power_units(battery);
+ units = acpi_battery_units(battery);
seq_printf(seq, "alarm: ");
if (!battery->alarm)
seq_printf(seq, "unsupported\n");
else
- seq_printf(seq, "%lu %sh\n", battery->alarm, units);
+ seq_printf(seq, "%u %sh\n", battery->alarm, units);
end:
@@ -587,49 +481,35 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
return result;
}
-static ssize_t
-acpi_battery_write_alarm(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
+static ssize_t acpi_battery_write_alarm(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
int result = 0;
char alarm_string[12] = { '\0' };
struct seq_file *m = file->private_data;
struct acpi_battery *battery = m->private;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
if (!battery || (count > sizeof(alarm_string) - 1))
return -EINVAL;
-
- result = acpi_battery_update(battery, 1, &update_result);
if (result) {
result = -ENODEV;
goto end;
}
-
if (!acpi_battery_present(battery)) {
result = -ENODEV;
goto end;
}
-
if (copy_from_user(alarm_string, buffer, count)) {
result = -EFAULT;
goto end;
}
-
alarm_string[count] = '\0';
-
- result = acpi_battery_set_alarm(battery,
- simple_strtoul(alarm_string, NULL, 0));
- if (result)
- goto end;
-
+ battery->alarm = simple_strtol(alarm_string, NULL, 0);
+ result = acpi_battery_set_alarm(battery, battery->alarm);
end:
-
- acpi_battery_check_result(battery, result);
-
if (!result)
- result = count;
+ return count;
return result;
}
@@ -648,28 +528,8 @@ static struct acpi_read_mux {
static int acpi_battery_read(int fid, struct seq_file *seq)
{
struct acpi_battery *battery = seq->private;
- int result = 0;
- int update_result = ACPI_BATTERY_NONE_UPDATE;
- int update = 0;
-
- update = (get_seconds() - battery->update_time[fid] >= update_time);
- update = (update | battery->update[fid]);
-
- result = acpi_battery_update(battery, update, &update_result);
- if (result)
- goto end;
-
- if (update_result == ACPI_BATTERY_EASY_UPDATE) {
- result = acpi_read_funcs[fid].get(battery);
- if (result)
- goto end;
- }
-
- end:
- result = acpi_read_funcs[fid].print(seq, result);
- acpi_battery_check_result(battery, result);
- battery->update[fid] = result;
- return result;
+ int result = acpi_battery_update(battery);
+ return acpi_read_funcs[fid].print(seq, result);
}
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
@@ -793,33 +653,16 @@ static int acpi_battery_remove_fs(struct acpi_device *device)
static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
{
struct acpi_battery *battery = data;
- struct acpi_device *device = NULL;
-
+ struct acpi_device *device;
if (!battery)
return;
-
device = battery->device;
-
- switch (event) {
- case ACPI_BATTERY_NOTIFY_STATUS:
- case ACPI_BATTERY_NOTIFY_INFO:
- case ACPI_NOTIFY_BUS_CHECK:
- case ACPI_NOTIFY_DEVICE_CHECK:
- device = battery->device;
- acpi_battery_notify_update(battery);
- acpi_bus_generate_proc_event(device, event,
+ acpi_battery_update(battery);
+ acpi_bus_generate_proc_event(device, event,
+ acpi_battery_present(battery));
+ acpi_bus_generate_netlink_event(device->pnp.device_class,
+ device->dev.bus_id, event,
acpi_battery_present(battery));
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- device->dev.bus_id, event,
- acpi_battery_present(battery));
- break;
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
- break;
- }
-
- return;
}
static int acpi_battery_add(struct acpi_device *device)
@@ -840,12 +683,7 @@ static int acpi_battery_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
mutex_init(&battery->lock);
- result = acpi_battery_get_status(battery);
- if (result)
- goto end;
-
- battery->init_update = 1;
-
+ acpi_battery_update(battery);
result = acpi_battery_add_fs(device);
if (result)
goto end;
@@ -898,14 +736,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
static int acpi_battery_resume(struct acpi_device *device)
{
struct acpi_battery *battery;
-
if (!device)
return -EINVAL;
-
- battery = device->driver_data;
-
- battery->init_update = 1;
-
+ battery = acpi_driver_data(device);
+ battery->update_time = 0;
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 07/32] ACPI: Battery: Misc clean-ups, no functional changes
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 342 ++++++++++++++++++------------------------------
1 files changed, 125 insertions(+), 217 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index faa70a5..db725bf 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1,6 +1,8 @@
/*
- * acpi_battery.c - ACPI Battery Driver ($Revision: 37 $)
+ * battery.c - ACPI Battery Driver (Revision: 2.0)
*
+ * Copyright (C) 2007 Alexey Starikovskiy <astarikovskiy@suse.de>
+ * Copyright (C) 2004-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
@@ -48,6 +50,7 @@
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
+MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
@@ -58,31 +61,17 @@ MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-static int acpi_battery_add(struct acpi_device *device);
-static int acpi_battery_remove(struct acpi_device *device, int type);
-static int acpi_battery_resume(struct acpi_device *device);
-
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
};
-MODULE_DEVICE_TABLE(acpi, battery_device_ids);
-static struct acpi_driver acpi_battery_driver = {
- .name = "battery",
- .class = ACPI_BATTERY_CLASS,
- .ids = battery_device_ids,
- .ops = {
- .add = acpi_battery_add,
- .resume = acpi_battery_resume,
- .remove = acpi_battery_remove,
- },
-};
+MODULE_DEVICE_TABLE(acpi, battery_device_ids);
enum acpi_battery_files {
- ACPI_BATTERY_INFO = 0,
- ACPI_BATTERY_STATE,
- ACPI_BATTERY_ALARM,
+ info_tag = 0,
+ state_tag,
+ alarm_tag,
ACPI_BATTERY_NUMFILES,
};
@@ -124,7 +113,6 @@ inline char *acpi_battery_units(struct acpi_battery *battery)
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
-
struct acpi_offsets {
size_t offset; /* offset inside struct acpi_sbs_battery */
u8 mode; /* int or string? */
@@ -183,19 +171,16 @@ static int extract_package(struct acpi_battery *battery,
static int acpi_battery_get_status(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_bus_get_status(battery->device);
- if (result) {
+ if (acpi_bus_get_status(battery->device)) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Evaluating _STA"));
return -ENODEV;
}
- return result;
+ return 0;
}
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- int result = 0;
+ int result = -EFAULT;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -205,10 +190,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
status = acpi_evaluate_object(battery->device->handle, "_BIF",
NULL, &buffer);
mutex_unlock(&battery->lock);
+
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
}
+
result = extract_package(battery, buffer.pointer,
info_offsets, ARRAY_SIZE(info_offsets));
kfree(buffer.pointer);
@@ -238,6 +225,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
}
+
result = extract_package(battery, buffer.pointer,
state_offsets, ARRAY_SIZE(state_offsets));
battery->update_time = jiffies;
@@ -245,37 +233,26 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
return result;
}
-static int acpi_battery_get_alarm(struct acpi_battery *battery)
-{
- return 0;
-}
-
-static int acpi_battery_set_alarm(struct acpi_battery *battery,
- unsigned long alarm)
+static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
acpi_status status = 0;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- if (!acpi_battery_present(battery))
- return -ENODEV;
-
- if (!battery->alarm_present)
+ if (!acpi_battery_present(battery)|| !battery->alarm_present)
return -ENODEV;
- arg0.integer.value = alarm;
+ arg0.integer.value = battery->alarm;
mutex_lock(&battery->lock);
status = acpi_evaluate_object(battery->device->handle, "_BTP",
&arg_list, NULL);
mutex_unlock(&battery->lock);
+
if (ACPI_FAILURE(status))
return -ENODEV;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", (u32) alarm));
-
- battery->alarm = alarm;
-
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", battery->alarm));
return 0;
}
@@ -293,7 +270,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
battery->alarm_present = 1;
if (!battery->alarm)
battery->alarm = battery->design_capacity_warning;
- return acpi_battery_set_alarm(battery, battery->alarm);
+ return acpi_battery_set_alarm(battery);
}
static int acpi_battery_update(struct acpi_battery *battery)
@@ -322,130 +299,101 @@ static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
- if (acpi_battery_present(battery))
- seq_printf(seq, "present: yes\n");
- else {
- seq_printf(seq, "present: no\n");
+ seq_printf(seq, "present: %s\n",
+ acpi_battery_present(battery)?"yes":"no");
+ if (!acpi_battery_present(battery))
goto end;
- }
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
-
if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design capacity: %d %sh\n",
- (u32) battery->design_capacity, units);
+ battery->design_capacity,
+ acpi_battery_units(battery));
if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- (u32) battery->last_full_capacity, units);
-
- switch ((u32) battery->technology) {
- case 0:
- seq_printf(seq, "battery technology: non-rechargeable\n");
- break;
- case 1:
- seq_printf(seq, "battery technology: rechargeable\n");
- break;
- default:
- seq_printf(seq, "battery technology: unknown\n");
- break;
- }
+ battery->last_full_capacity,
+ acpi_battery_units(battery));
+
+ seq_printf(seq, "battery technology: %srechargeable\n",
+ (!battery->technology)?"non-":"");
if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design voltage: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
- (u32) battery->design_voltage);
+ battery->design_voltage);
seq_printf(seq, "design capacity warning: %d %sh\n",
- (u32) battery->design_capacity_warning, units);
+ battery->design_capacity_warning,
+ acpi_battery_units(battery));
seq_printf(seq, "design capacity low: %d %sh\n",
- (u32) battery->design_capacity_low, units);
+ battery->design_capacity_low,
+ acpi_battery_units(battery));
seq_printf(seq, "capacity granularity 1: %d %sh\n",
- (u32) battery->capacity_granularity_1, units);
+ battery->capacity_granularity_1,
+ acpi_battery_units(battery));
seq_printf(seq, "capacity granularity 2: %d %sh\n",
- (u32) battery->capacity_granularity_2, units);
+ battery->capacity_granularity_2,
+ acpi_battery_units(battery));
seq_printf(seq, "model number: %s\n", battery->model_number);
seq_printf(seq, "serial number: %s\n", battery->serial_number);
seq_printf(seq, "battery type: %s\n", battery->type);
seq_printf(seq, "OEM info: %s\n", battery->oem_info);
-
end:
-
if (result)
seq_printf(seq, "ERROR: Unable to read battery info\n");
-
return result;
}
static int acpi_battery_print_state(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
- if (acpi_battery_present(battery))
- seq_printf(seq, "present: yes\n");
- else {
- seq_printf(seq, "present: no\n");
+ seq_printf(seq, "present: %s\n",
+ acpi_battery_present(battery)?"yes":"no");
+ if (!acpi_battery_present(battery))
goto end;
- }
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
- if (!(battery->state & 0x04))
- seq_printf(seq, "capacity state: ok\n");
- else
- seq_printf(seq, "capacity state: critical\n");
-
- if ((battery->state & 0x01) && (battery->state & 0x02)) {
+ seq_printf(seq, "capacity state: %s\n",
+ (battery->state & 0x04)?"critical":"ok");
+ if ((battery->state & 0x01) && (battery->state & 0x02))
seq_printf(seq,
"charging state: charging/discharging\n");
- } else if (battery->state & 0x01)
+ else if (battery->state & 0x01)
seq_printf(seq, "charging state: discharging\n");
else if (battery->state & 0x02)
seq_printf(seq, "charging state: charging\n");
- else {
+ else
seq_printf(seq, "charging state: charged\n");
- }
if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- (u32) battery->present_rate, units);
+ battery->present_rate, acpi_battery_units(battery));
if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- (u32) battery->remaining_capacity, units);
-
+ battery->remaining_capacity, acpi_battery_units(battery));
if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- (u32) battery->present_voltage);
-
+ battery->present_voltage);
end:
-
- if (result) {
+ if (result)
seq_printf(seq, "ERROR: Unable to read battery state\n");
- }
return result;
}
@@ -453,7 +401,6 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
static int acpi_battery_print_alarm(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
@@ -462,22 +409,15 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
seq_printf(seq, "present: no\n");
goto end;
}
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
-
seq_printf(seq, "alarm: ");
if (!battery->alarm)
seq_printf(seq, "unsupported\n");
else
- seq_printf(seq, "%u %sh\n", battery->alarm, units);
-
+ seq_printf(seq, "%u %sh\n", battery->alarm,
+ acpi_battery_units(battery));
end:
-
if (result)
seq_printf(seq, "ERROR: Unable to read battery alarm\n");
-
return result;
}
@@ -506,7 +446,7 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
}
alarm_string[count] = '\0';
battery->alarm = simple_strtol(alarm_string, NULL, 0);
- result = acpi_battery_set_alarm(battery, battery->alarm);
+ result = acpi_battery_set_alarm(battery);
end:
if (!result)
return count;
@@ -514,95 +454,76 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
}
typedef int(*print_func)(struct seq_file *seq, int result);
-typedef int(*get_func)(struct acpi_battery *battery);
-
-static struct acpi_read_mux {
- print_func print;
- get_func get;
-} acpi_read_funcs[ACPI_BATTERY_NUMFILES] = {
- {.get = acpi_battery_get_info, .print = acpi_battery_print_info},
- {.get = acpi_battery_get_state, .print = acpi_battery_print_state},
- {.get = acpi_battery_get_alarm, .print = acpi_battery_print_alarm},
+
+static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
+ acpi_battery_print_info,
+ acpi_battery_print_state,
+ acpi_battery_print_alarm,
};
static int acpi_battery_read(int fid, struct seq_file *seq)
{
struct acpi_battery *battery = seq->private;
int result = acpi_battery_update(battery);
- return acpi_read_funcs[fid].print(seq, result);
-}
-
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_INFO, seq);
-}
-
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_STATE, seq);
-}
-
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_ALARM, seq);
+ return acpi_print_funcs[fid](seq, result);
}
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_info, PDE(inode)->data);
+#define DECLARE_FILE_FUNCTIONS(_name) \
+static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
+{ \
+ return acpi_battery_read(_name##_tag, seq); \
+} \
+static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
+{ \
+ return single_open(file, acpi_battery_read_##_name, PDE(inode)->data); \
}
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_state, PDE(inode)->data);
-}
+DECLARE_FILE_FUNCTIONS(info);
+DECLARE_FILE_FUNCTIONS(state);
+DECLARE_FILE_FUNCTIONS(alarm);
+
+#undef DECLARE_FILE_FUNCTIONS
+
+#define FILE_DESCRIPTION_RO(_name) \
+ { \
+ .name = __stringify(_name), \
+ .mode = S_IRUGO, \
+ .ops = { \
+ .open = acpi_battery_##_name##_open_fs, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
-static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
-}
+#define FILE_DESCRIPTION_RW(_name) \
+ { \
+ .name = __stringify(_name), \
+ .mode = S_IFREG | S_IRUGO | S_IWUSR, \
+ .ops = { \
+ .open = acpi_battery_##_name##_open_fs, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .write = acpi_battery_write_##_name, \
+ .release = single_release, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
static struct battery_file {
struct file_operations ops;
mode_t mode;
char *name;
} acpi_battery_file[] = {
- {
- .name = "info",
- .mode = S_IRUGO,
- .ops = {
- .open = acpi_battery_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
- {
- .name = "state",
- .mode = S_IRUGO,
- .ops = {
- .open = acpi_battery_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
- {
- .name = "alarm",
- .mode = S_IFREG | S_IRUGO | S_IWUSR,
- .ops = {
- .open = acpi_battery_alarm_open_fs,
- .read = seq_read,
- .write = acpi_battery_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
+ FILE_DESCRIPTION_RO(info),
+ FILE_DESCRIPTION_RO(state),
+ FILE_DESCRIPTION_RW(alarm),
};
+#undef FILE_DESCRIPTION_RO
+#undef FILE_DESCRIPTION_RW
+
static int acpi_battery_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
@@ -627,23 +548,20 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry->owner = THIS_MODULE;
}
}
-
return 0;
}
-static int acpi_battery_remove_fs(struct acpi_device *device)
+static void acpi_battery_remove_fs(struct acpi_device *device)
{
int i;
- if (acpi_device_dir(device)) {
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
- remove_proc_entry(acpi_battery_file[i].name,
+ if (!acpi_device_dir(device))
+ return;
+ for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
+ remove_proc_entry(acpi_battery_file[i].name,
acpi_device_dir(device));
- }
- remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
- acpi_device_dir(device) = NULL;
- }
- return 0;
+ remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
+ acpi_device_dir(device) = NULL;
}
/* --------------------------------------------------------------------------
@@ -670,14 +588,11 @@ static int acpi_battery_add(struct acpi_device *device)
int result = 0;
acpi_status status = 0;
struct acpi_battery *battery = NULL;
-
if (!device)
return -EINVAL;
-
battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
return -ENOMEM;
-
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@@ -687,7 +602,6 @@ static int acpi_battery_add(struct acpi_device *device)
result = acpi_battery_add_fs(device);
if (result)
goto end;
-
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
@@ -696,18 +610,14 @@ static int acpi_battery_add(struct acpi_device *device)
result = -ENODEV;
goto end;
}
-
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
device->status.battery_present ? "present" : "absent");
-
end:
-
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
}
-
return result;
}
@@ -718,17 +628,13 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
if (!device || !acpi_driver_data(device))
return -EINVAL;
-
battery = acpi_driver_data(device);
-
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
-
acpi_battery_remove_fs(device);
mutex_destroy(&battery->lock);
kfree(battery);
-
return 0;
}
@@ -743,33 +649,35 @@ static int acpi_battery_resume(struct acpi_device *device)
return 0;
}
+static struct acpi_driver acpi_battery_driver = {
+ .name = "battery",
+ .class = ACPI_BATTERY_CLASS,
+ .ids = battery_device_ids,
+ .ops = {
+ .add = acpi_battery_add,
+ .resume = acpi_battery_resume,
+ .remove = acpi_battery_remove,
+ },
+};
+
static int __init acpi_battery_init(void)
{
- int result;
-
if (acpi_disabled)
return -ENODEV;
-
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;
-
- result = acpi_bus_register_driver(&acpi_battery_driver);
- if (result < 0) {
+ if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
acpi_unlock_battery_dir(acpi_battery_dir);
return -ENODEV;
}
-
return 0;
}
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
-
acpi_unlock_battery_dir(acpi_battery_dir);
-
- return;
}
module_init(acpi_battery_init);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 07/32] ACPI: Battery: Misc clean-ups, no functional changes
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 342 ++++++++++++++++++------------------------------
1 files changed, 125 insertions(+), 217 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index faa70a5..db725bf 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1,6 +1,8 @@
/*
- * acpi_battery.c - ACPI Battery Driver ($Revision: 37 $)
+ * battery.c - ACPI Battery Driver (Revision: 2.0)
*
+ * Copyright (C) 2007 Alexey Starikovskiy <astarikovskiy@suse.de>
+ * Copyright (C) 2004-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
@@ -48,6 +50,7 @@
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
+MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
@@ -58,31 +61,17 @@ MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-static int acpi_battery_add(struct acpi_device *device);
-static int acpi_battery_remove(struct acpi_device *device, int type);
-static int acpi_battery_resume(struct acpi_device *device);
-
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
};
-MODULE_DEVICE_TABLE(acpi, battery_device_ids);
-static struct acpi_driver acpi_battery_driver = {
- .name = "battery",
- .class = ACPI_BATTERY_CLASS,
- .ids = battery_device_ids,
- .ops = {
- .add = acpi_battery_add,
- .resume = acpi_battery_resume,
- .remove = acpi_battery_remove,
- },
-};
+MODULE_DEVICE_TABLE(acpi, battery_device_ids);
enum acpi_battery_files {
- ACPI_BATTERY_INFO = 0,
- ACPI_BATTERY_STATE,
- ACPI_BATTERY_ALARM,
+ info_tag = 0,
+ state_tag,
+ alarm_tag,
ACPI_BATTERY_NUMFILES,
};
@@ -124,7 +113,6 @@ inline char *acpi_battery_units(struct acpi_battery *battery)
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
-
struct acpi_offsets {
size_t offset; /* offset inside struct acpi_sbs_battery */
u8 mode; /* int or string? */
@@ -183,19 +171,16 @@ static int extract_package(struct acpi_battery *battery,
static int acpi_battery_get_status(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_bus_get_status(battery->device);
- if (result) {
+ if (acpi_bus_get_status(battery->device)) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Evaluating _STA"));
return -ENODEV;
}
- return result;
+ return 0;
}
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- int result = 0;
+ int result = -EFAULT;
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -205,10 +190,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
status = acpi_evaluate_object(battery->device->handle, "_BIF",
NULL, &buffer);
mutex_unlock(&battery->lock);
+
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
return -ENODEV;
}
+
result = extract_package(battery, buffer.pointer,
info_offsets, ARRAY_SIZE(info_offsets));
kfree(buffer.pointer);
@@ -238,6 +225,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
return -ENODEV;
}
+
result = extract_package(battery, buffer.pointer,
state_offsets, ARRAY_SIZE(state_offsets));
battery->update_time = jiffies;
@@ -245,37 +233,26 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
return result;
}
-static int acpi_battery_get_alarm(struct acpi_battery *battery)
-{
- return 0;
-}
-
-static int acpi_battery_set_alarm(struct acpi_battery *battery,
- unsigned long alarm)
+static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
acpi_status status = 0;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- if (!acpi_battery_present(battery))
- return -ENODEV;
-
- if (!battery->alarm_present)
+ if (!acpi_battery_present(battery)|| !battery->alarm_present)
return -ENODEV;
- arg0.integer.value = alarm;
+ arg0.integer.value = battery->alarm;
mutex_lock(&battery->lock);
status = acpi_evaluate_object(battery->device->handle, "_BTP",
&arg_list, NULL);
mutex_unlock(&battery->lock);
+
if (ACPI_FAILURE(status))
return -ENODEV;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", (u32) alarm));
-
- battery->alarm = alarm;
-
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", battery->alarm));
return 0;
}
@@ -293,7 +270,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
battery->alarm_present = 1;
if (!battery->alarm)
battery->alarm = battery->design_capacity_warning;
- return acpi_battery_set_alarm(battery, battery->alarm);
+ return acpi_battery_set_alarm(battery);
}
static int acpi_battery_update(struct acpi_battery *battery)
@@ -322,130 +299,101 @@ static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
- if (acpi_battery_present(battery))
- seq_printf(seq, "present: yes\n");
- else {
- seq_printf(seq, "present: no\n");
+ seq_printf(seq, "present: %s\n",
+ acpi_battery_present(battery)?"yes":"no");
+ if (!acpi_battery_present(battery))
goto end;
- }
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
-
if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design capacity: %d %sh\n",
- (u32) battery->design_capacity, units);
+ battery->design_capacity,
+ acpi_battery_units(battery));
if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- (u32) battery->last_full_capacity, units);
-
- switch ((u32) battery->technology) {
- case 0:
- seq_printf(seq, "battery technology: non-rechargeable\n");
- break;
- case 1:
- seq_printf(seq, "battery technology: rechargeable\n");
- break;
- default:
- seq_printf(seq, "battery technology: unknown\n");
- break;
- }
+ battery->last_full_capacity,
+ acpi_battery_units(battery));
+
+ seq_printf(seq, "battery technology: %srechargeable\n",
+ (!battery->technology)?"non-":"");
if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design voltage: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
- (u32) battery->design_voltage);
+ battery->design_voltage);
seq_printf(seq, "design capacity warning: %d %sh\n",
- (u32) battery->design_capacity_warning, units);
+ battery->design_capacity_warning,
+ acpi_battery_units(battery));
seq_printf(seq, "design capacity low: %d %sh\n",
- (u32) battery->design_capacity_low, units);
+ battery->design_capacity_low,
+ acpi_battery_units(battery));
seq_printf(seq, "capacity granularity 1: %d %sh\n",
- (u32) battery->capacity_granularity_1, units);
+ battery->capacity_granularity_1,
+ acpi_battery_units(battery));
seq_printf(seq, "capacity granularity 2: %d %sh\n",
- (u32) battery->capacity_granularity_2, units);
+ battery->capacity_granularity_2,
+ acpi_battery_units(battery));
seq_printf(seq, "model number: %s\n", battery->model_number);
seq_printf(seq, "serial number: %s\n", battery->serial_number);
seq_printf(seq, "battery type: %s\n", battery->type);
seq_printf(seq, "OEM info: %s\n", battery->oem_info);
-
end:
-
if (result)
seq_printf(seq, "ERROR: Unable to read battery info\n");
-
return result;
}
static int acpi_battery_print_state(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
- if (acpi_battery_present(battery))
- seq_printf(seq, "present: yes\n");
- else {
- seq_printf(seq, "present: no\n");
+ seq_printf(seq, "present: %s\n",
+ acpi_battery_present(battery)?"yes":"no");
+ if (!acpi_battery_present(battery))
goto end;
- }
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
- if (!(battery->state & 0x04))
- seq_printf(seq, "capacity state: ok\n");
- else
- seq_printf(seq, "capacity state: critical\n");
-
- if ((battery->state & 0x01) && (battery->state & 0x02)) {
+ seq_printf(seq, "capacity state: %s\n",
+ (battery->state & 0x04)?"critical":"ok");
+ if ((battery->state & 0x01) && (battery->state & 0x02))
seq_printf(seq,
"charging state: charging/discharging\n");
- } else if (battery->state & 0x01)
+ else if (battery->state & 0x01)
seq_printf(seq, "charging state: discharging\n");
else if (battery->state & 0x02)
seq_printf(seq, "charging state: charging\n");
- else {
+ else
seq_printf(seq, "charging state: charged\n");
- }
if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- (u32) battery->present_rate, units);
+ battery->present_rate, acpi_battery_units(battery));
if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- (u32) battery->remaining_capacity, units);
-
+ battery->remaining_capacity, acpi_battery_units(battery));
if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- (u32) battery->present_voltage);
-
+ battery->present_voltage);
end:
-
- if (result) {
+ if (result)
seq_printf(seq, "ERROR: Unable to read battery state\n");
- }
return result;
}
@@ -453,7 +401,6 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
static int acpi_battery_print_alarm(struct seq_file *seq, int result)
{
struct acpi_battery *battery = seq->private;
- char *units = "?";
if (result)
goto end;
@@ -462,22 +409,15 @@ static int acpi_battery_print_alarm(struct seq_file *seq, int result)
seq_printf(seq, "present: no\n");
goto end;
}
-
- /* Battery Units */
-
- units = acpi_battery_units(battery);
-
seq_printf(seq, "alarm: ");
if (!battery->alarm)
seq_printf(seq, "unsupported\n");
else
- seq_printf(seq, "%u %sh\n", battery->alarm, units);
-
+ seq_printf(seq, "%u %sh\n", battery->alarm,
+ acpi_battery_units(battery));
end:
-
if (result)
seq_printf(seq, "ERROR: Unable to read battery alarm\n");
-
return result;
}
@@ -506,7 +446,7 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
}
alarm_string[count] = '\0';
battery->alarm = simple_strtol(alarm_string, NULL, 0);
- result = acpi_battery_set_alarm(battery, battery->alarm);
+ result = acpi_battery_set_alarm(battery);
end:
if (!result)
return count;
@@ -514,95 +454,76 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
}
typedef int(*print_func)(struct seq_file *seq, int result);
-typedef int(*get_func)(struct acpi_battery *battery);
-
-static struct acpi_read_mux {
- print_func print;
- get_func get;
-} acpi_read_funcs[ACPI_BATTERY_NUMFILES] = {
- {.get = acpi_battery_get_info, .print = acpi_battery_print_info},
- {.get = acpi_battery_get_state, .print = acpi_battery_print_state},
- {.get = acpi_battery_get_alarm, .print = acpi_battery_print_alarm},
+
+static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
+ acpi_battery_print_info,
+ acpi_battery_print_state,
+ acpi_battery_print_alarm,
};
static int acpi_battery_read(int fid, struct seq_file *seq)
{
struct acpi_battery *battery = seq->private;
int result = acpi_battery_update(battery);
- return acpi_read_funcs[fid].print(seq, result);
-}
-
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_INFO, seq);
-}
-
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_STATE, seq);
-}
-
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
-{
- return acpi_battery_read(ACPI_BATTERY_ALARM, seq);
+ return acpi_print_funcs[fid](seq, result);
}
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_info, PDE(inode)->data);
+#define DECLARE_FILE_FUNCTIONS(_name) \
+static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
+{ \
+ return acpi_battery_read(_name##_tag, seq); \
+} \
+static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
+{ \
+ return single_open(file, acpi_battery_read_##_name, PDE(inode)->data); \
}
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_state, PDE(inode)->data);
-}
+DECLARE_FILE_FUNCTIONS(info);
+DECLARE_FILE_FUNCTIONS(state);
+DECLARE_FILE_FUNCTIONS(alarm);
+
+#undef DECLARE_FILE_FUNCTIONS
+
+#define FILE_DESCRIPTION_RO(_name) \
+ { \
+ .name = __stringify(_name), \
+ .mode = S_IRUGO, \
+ .ops = { \
+ .open = acpi_battery_##_name##_open_fs, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
-static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
-}
+#define FILE_DESCRIPTION_RW(_name) \
+ { \
+ .name = __stringify(_name), \
+ .mode = S_IFREG | S_IRUGO | S_IWUSR, \
+ .ops = { \
+ .open = acpi_battery_##_name##_open_fs, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .write = acpi_battery_write_##_name, \
+ .release = single_release, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
static struct battery_file {
struct file_operations ops;
mode_t mode;
char *name;
} acpi_battery_file[] = {
- {
- .name = "info",
- .mode = S_IRUGO,
- .ops = {
- .open = acpi_battery_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
- {
- .name = "state",
- .mode = S_IRUGO,
- .ops = {
- .open = acpi_battery_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
- {
- .name = "alarm",
- .mode = S_IFREG | S_IRUGO | S_IWUSR,
- .ops = {
- .open = acpi_battery_alarm_open_fs,
- .read = seq_read,
- .write = acpi_battery_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
- },
- },
+ FILE_DESCRIPTION_RO(info),
+ FILE_DESCRIPTION_RO(state),
+ FILE_DESCRIPTION_RW(alarm),
};
+#undef FILE_DESCRIPTION_RO
+#undef FILE_DESCRIPTION_RW
+
static int acpi_battery_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
@@ -627,23 +548,20 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry->owner = THIS_MODULE;
}
}
-
return 0;
}
-static int acpi_battery_remove_fs(struct acpi_device *device)
+static void acpi_battery_remove_fs(struct acpi_device *device)
{
int i;
- if (acpi_device_dir(device)) {
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
- remove_proc_entry(acpi_battery_file[i].name,
+ if (!acpi_device_dir(device))
+ return;
+ for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
+ remove_proc_entry(acpi_battery_file[i].name,
acpi_device_dir(device));
- }
- remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
- acpi_device_dir(device) = NULL;
- }
- return 0;
+ remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
+ acpi_device_dir(device) = NULL;
}
/* --------------------------------------------------------------------------
@@ -670,14 +588,11 @@ static int acpi_battery_add(struct acpi_device *device)
int result = 0;
acpi_status status = 0;
struct acpi_battery *battery = NULL;
-
if (!device)
return -EINVAL;
-
battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
return -ENOMEM;
-
battery->device = device;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
@@ -687,7 +602,6 @@ static int acpi_battery_add(struct acpi_device *device)
result = acpi_battery_add_fs(device);
if (result)
goto end;
-
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
@@ -696,18 +610,14 @@ static int acpi_battery_add(struct acpi_device *device)
result = -ENODEV;
goto end;
}
-
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
device->status.battery_present ? "present" : "absent");
-
end:
-
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
}
-
return result;
}
@@ -718,17 +628,13 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
if (!device || !acpi_driver_data(device))
return -EINVAL;
-
battery = acpi_driver_data(device);
-
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
-
acpi_battery_remove_fs(device);
mutex_destroy(&battery->lock);
kfree(battery);
-
return 0;
}
@@ -743,33 +649,35 @@ static int acpi_battery_resume(struct acpi_device *device)
return 0;
}
+static struct acpi_driver acpi_battery_driver = {
+ .name = "battery",
+ .class = ACPI_BATTERY_CLASS,
+ .ids = battery_device_ids,
+ .ops = {
+ .add = acpi_battery_add,
+ .resume = acpi_battery_resume,
+ .remove = acpi_battery_remove,
+ },
+};
+
static int __init acpi_battery_init(void)
{
- int result;
-
if (acpi_disabled)
return -ENODEV;
-
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;
-
- result = acpi_bus_register_driver(&acpi_battery_driver);
- if (result < 0) {
+ if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
acpi_unlock_battery_dir(acpi_battery_dir);
return -ENODEV;
}
-
return 0;
}
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
-
acpi_unlock_battery_dir(acpi_battery_dir);
-
- return;
}
module_init(acpi_battery_init);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 08/32] ACPI: Add acpi_bus_generate_event4() function
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
acpi_bus_generate_event() takes two strings out of passed device object.
SBS needs to supply these strings directly.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/bus.c | 23 +++++++++++++++--------
drivers/acpi/sbs.c | 46 ++++++++++++++--------------------------------
include/acpi/acpi_bus.h | 1 +
3 files changed, 30 insertions(+), 40 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9ba778a..a54234d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -284,15 +284,11 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
extern int event_is_open;
-int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
{
- struct acpi_bus_event *event = NULL;
+ struct acpi_bus_event *event;
unsigned long flags = 0;
-
- if (!device)
- return -EINVAL;
-
/* drop event on the floor if no one's listening */
if (!event_is_open)
return 0;
@@ -301,8 +297,8 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
if (!event)
return -ENOMEM;
- strcpy(event->device_class, device->pnp.device_class);
- strcpy(event->bus_id, device->pnp.bus_id);
+ strcpy(event->device_class, device_class);
+ strcpy(event->bus_id, bus_id);
event->type = type;
event->data = data;
@@ -313,6 +309,17 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
wake_up_interruptible(&acpi_bus_event_queue);
return 0;
+
+}
+
+EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
+
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+{
+ if (!device)
+ return -EINVAL;
+ return acpi_bus_generate_proc_event4(device->pnp.device_class,
+ device->pnp.bus_id, type, data);
}
EXPORT_SYMBOL(acpi_bus_generate_proc_event);
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index a578986..33ba4bf 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -427,28 +427,6 @@ static int acpi_check_update_proc(struct acpi_sbs *sbs)
return 0;
}
-static int acpi_sbs_generate_event(struct acpi_device *device,
- int event, int state, char *bid, char *class)
-{
- char bid_saved[5];
- char class_saved[20];
- int result = 0;
-
- strcpy(bid_saved, acpi_device_bid(device));
- strcpy(class_saved, acpi_device_class(device));
-
- strcpy(acpi_device_bid(device), bid);
- strcpy(acpi_device_class(device), class);
-
- result = acpi_bus_generate_proc_event(device, event, state);
-
- strcpy(acpi_device_bid(device), bid_saved);
- strcpy(acpi_device_class(device), class_saved);
-
- acpi_bus_generate_netlink_event(class, bid, event, state);
- return result;
-}
-
static int acpi_battery_get_present(struct acpi_battery *battery)
{
s16 state;
@@ -1452,15 +1430,17 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
}
if (do_ac_init) {
- result = acpi_sbs_generate_event(sbs->device,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present,
+ result = acpi_bus_generate_proc_event4(ACPI_AC_CLASS,
ACPI_AC_DIR_NAME,
- ACPI_AC_CLASS);
+ ACPI_SBS_AC_NOTIFY_STATUS,
+ new_ac_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generate_event() failed"));
+ "acpi_bus_generate_event4() failed"));
}
+ acpi_bus_generate_netlink_event(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
+ ACPI_SBS_AC_NOTIFY_STATUS,
+ new_ac_present);
}
if (data_type == DATA_TYPE_COMMON) {
@@ -1568,14 +1548,16 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
old_remaining_capacity !=
battery->state.remaining_capacity) {
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_sbs_generate_event(sbs->device,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present,
+ result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
dir_name,
- ACPI_BATTERY_CLASS);
+ ACPI_SBS_BATTERY_NOTIFY_STATUS,
+ new_battery_present);
+ acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
+ ACPI_SBS_BATTERY_NOTIFY_STATUS,
+ new_battery_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generate_event() "
+ "acpi_bus_generate_proc_event4() "
"failed"));
}
}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 86aea44..8a388e7 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -333,6 +333,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state);
int acpi_bus_set_power(acpi_handle handle, int state);
#ifdef CONFIG_ACPI_PROC_EVENT
int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
+int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data);
int acpi_bus_receive_event(struct acpi_bus_event *event);
#else
static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 08/32] ACPI: Add acpi_bus_generate_event4() function
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
acpi_bus_generate_event() takes two strings out of passed device object.
SBS needs to supply these strings directly.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/bus.c | 23 +++++++++++++++--------
drivers/acpi/sbs.c | 46 ++++++++++++++--------------------------------
include/acpi/acpi_bus.h | 1 +
3 files changed, 30 insertions(+), 40 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9ba778a..a54234d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -284,15 +284,11 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
extern int event_is_open;
-int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
{
- struct acpi_bus_event *event = NULL;
+ struct acpi_bus_event *event;
unsigned long flags = 0;
-
- if (!device)
- return -EINVAL;
-
/* drop event on the floor if no one's listening */
if (!event_is_open)
return 0;
@@ -301,8 +297,8 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
if (!event)
return -ENOMEM;
- strcpy(event->device_class, device->pnp.device_class);
- strcpy(event->bus_id, device->pnp.bus_id);
+ strcpy(event->device_class, device_class);
+ strcpy(event->bus_id, bus_id);
event->type = type;
event->data = data;
@@ -313,6 +309,17 @@ int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
wake_up_interruptible(&acpi_bus_event_queue);
return 0;
+
+}
+
+EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
+
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+{
+ if (!device)
+ return -EINVAL;
+ return acpi_bus_generate_proc_event4(device->pnp.device_class,
+ device->pnp.bus_id, type, data);
}
EXPORT_SYMBOL(acpi_bus_generate_proc_event);
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index a578986..33ba4bf 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -427,28 +427,6 @@ static int acpi_check_update_proc(struct acpi_sbs *sbs)
return 0;
}
-static int acpi_sbs_generate_event(struct acpi_device *device,
- int event, int state, char *bid, char *class)
-{
- char bid_saved[5];
- char class_saved[20];
- int result = 0;
-
- strcpy(bid_saved, acpi_device_bid(device));
- strcpy(class_saved, acpi_device_class(device));
-
- strcpy(acpi_device_bid(device), bid);
- strcpy(acpi_device_class(device), class);
-
- result = acpi_bus_generate_proc_event(device, event, state);
-
- strcpy(acpi_device_bid(device), bid_saved);
- strcpy(acpi_device_class(device), class_saved);
-
- acpi_bus_generate_netlink_event(class, bid, event, state);
- return result;
-}
-
static int acpi_battery_get_present(struct acpi_battery *battery)
{
s16 state;
@@ -1452,15 +1430,17 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
}
if (do_ac_init) {
- result = acpi_sbs_generate_event(sbs->device,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present,
+ result = acpi_bus_generate_proc_event4(ACPI_AC_CLASS,
ACPI_AC_DIR_NAME,
- ACPI_AC_CLASS);
+ ACPI_SBS_AC_NOTIFY_STATUS,
+ new_ac_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generate_event() failed"));
+ "acpi_bus_generate_event4() failed"));
}
+ acpi_bus_generate_netlink_event(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
+ ACPI_SBS_AC_NOTIFY_STATUS,
+ new_ac_present);
}
if (data_type == DATA_TYPE_COMMON) {
@@ -1568,14 +1548,16 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
old_remaining_capacity !=
battery->state.remaining_capacity) {
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_sbs_generate_event(sbs->device,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present,
+ result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
dir_name,
- ACPI_BATTERY_CLASS);
+ ACPI_SBS_BATTERY_NOTIFY_STATUS,
+ new_battery_present);
+ acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
+ ACPI_SBS_BATTERY_NOTIFY_STATUS,
+ new_battery_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generate_event() "
+ "acpi_bus_generate_proc_event4() "
"failed"));
}
}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 86aea44..8a388e7 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -333,6 +333,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state);
int acpi_bus_set_power(acpi_handle handle, int state);
#ifdef CONFIG_ACPI_PROC_EVENT
int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
+int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data);
int acpi_bus_receive_event(struct acpi_bus_event *event);
#else
static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 09/32] ACPI: EC: Add new query handler to list head.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ec.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f7935a..e9a0405 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -425,7 +425,7 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
handler->func = func;
handler->data = data;
mutex_lock(&ec->lock);
- list_add_tail(&handler->node, &ec->list);
+ list_add(&handler->node, &ec->list);
mutex_unlock(&ec->lock);
return 0;
}
@@ -440,7 +440,6 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
if (query_bit == handler->query_bit) {
list_del(&handler->node);
kfree(handler);
- break;
}
}
mutex_unlock(&ec->lock);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 09/32] ACPI: EC: Add new query handler to list head.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ec.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f7935a..e9a0405 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -425,7 +425,7 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
handler->func = func;
handler->data = data;
mutex_lock(&ec->lock);
- list_add_tail(&handler->node, &ec->list);
+ list_add(&handler->node, &ec->list);
mutex_unlock(&ec->lock);
return 0;
}
@@ -440,7 +440,6 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
if (query_bit == handler->query_bit) {
list_del(&handler->node);
kfree(handler);
- break;
}
}
mutex_unlock(&ec->lock);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 10/32] ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Replace poll-based host controller driver with the notify-based one.
Split it out of sbs.c.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/Makefile | 1 +
drivers/acpi/sbs.c | 374 ++++++++++---------------------------------------
drivers/acpi/sbshc.c | 309 ++++++++++++++++++++++++++++++++++++++++
drivers/acpi/sbshc.h | 27 ++++
4 files changed, 412 insertions(+), 299 deletions(-)
create mode 100644 drivers/acpi/sbshc.c
create mode 100644 drivers/acpi/sbshc.h
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index d4336f1..54e3ab0 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
obj-y += cm_sbs.o
obj-$(CONFIG_ACPI_SBS) += sbs.o
+obj-$(CONFIG_ACPI_SBS) += sbshc.o
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 33ba4bf..7bb8c62 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -34,6 +34,8 @@
#include <linux/jiffies.h>
#include <linux/delay.h>
+#include "sbshc.h"
+
#define ACPI_SBS_COMPONENT 0x00080000
#define ACPI_SBS_CLASS "sbs"
#define ACPI_AC_CLASS "ac_adapter"
@@ -59,28 +61,6 @@ MODULE_AUTHOR("Rich Townsend");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
-#define xmsleep(t) msleep(t)
-
-#define ACPI_EC_SMB_PRTCL 0x00 /* protocol, PEC */
-
-#define ACPI_EC_SMB_STS 0x01 /* status */
-#define ACPI_EC_SMB_ADDR 0x02 /* address */
-#define ACPI_EC_SMB_CMD 0x03 /* command */
-#define ACPI_EC_SMB_DATA 0x04 /* 32 data registers */
-#define ACPI_EC_SMB_BCNT 0x24 /* number of data bytes */
-
-#define ACPI_EC_SMB_STS_DONE 0x80
-#define ACPI_EC_SMB_STS_STATUS 0x1f
-
-#define ACPI_EC_SMB_PRTCL_WRITE 0x00
-#define ACPI_EC_SMB_PRTCL_READ 0x01
-#define ACPI_EC_SMB_PRTCL_WORD_DATA 0x08
-#define ACPI_EC_SMB_PRTCL_BLOCK_DATA 0x0a
-
-#define ACPI_EC_SMB_TRANSACTION_SLEEP 1
-#define ACPI_EC_SMB_ACCESS_SLEEP1 1
-#define ACPI_EC_SMB_ACCESS_SLEEP2 10
-
#define DEF_CAPACITY_UNIT 3
#define MAH_CAPACITY_UNIT 1
#define MWH_CAPACITY_UNIT 2
@@ -103,12 +83,6 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-#define ACPI_SBS_SMBUS_READ 1
-#define ACPI_SBS_SMBUS_WRITE 2
-
-#define ACPI_SBS_WORD_DATA 1
-#define ACPI_SBS_BLOCK_DATA 2
-
#define UPDATE_DELAY 10
/* 0 - every time, > 0 - by update_time */
@@ -124,8 +98,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_resume(struct acpi_device *device);
static const struct acpi_device_id sbs_device_ids[] = {
- {"ACPI0001", 0},
- {"ACPI0005", 0},
+ {"ACPI0002", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
@@ -182,8 +155,8 @@ struct acpi_battery {
};
struct acpi_sbs {
- int base;
struct acpi_device *device;
+ struct acpi_smb_hc *hc;
struct mutex mutex;
int sbsm_present;
int sbsm_batteries_supported;
@@ -199,190 +172,6 @@ struct acpi_sbs {
static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
static void acpi_sbs_update_time(void *data);
-union sbs_rw_data {
- u16 word;
- u8 block[ACPI_SBS_BLOCK_MAX + 2];
-};
-
-static int acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr,
- char read_write, u8 command, int size,
- union sbs_rw_data *data);
-
-/* --------------------------------------------------------------------------
- SMBus Communication
- -------------------------------------------------------------------------- */
-
-static int acpi_ec_sbs_read(struct acpi_sbs *sbs, u8 address, u8 * data)
-{
- u8 val;
- int err;
-
- err = ec_read(sbs->base + address, &val);
- if (!err) {
- *data = val;
- }
- xmsleep(ACPI_EC_SMB_TRANSACTION_SLEEP);
- return (err);
-}
-
-static int acpi_ec_sbs_write(struct acpi_sbs *sbs, u8 address, u8 data)
-{
- int err;
-
- err = ec_write(sbs->base + address, data);
- return (err);
-}
-
-static int
-acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr,
- char read_write, u8 command, int size,
- union sbs_rw_data *data)
-{
- unsigned char protocol, len = 0, temp[2] = { 0, 0 };
- int i;
-
- if (read_write == ACPI_SBS_SMBUS_READ) {
- protocol = ACPI_EC_SMB_PRTCL_READ;
- } else {
- protocol = ACPI_EC_SMB_PRTCL_WRITE;
- }
-
- switch (size) {
-
- case ACPI_SBS_WORD_DATA:
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command);
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA, data->word);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + 1,
- data->word >> 8);
- }
- protocol |= ACPI_EC_SMB_PRTCL_WORD_DATA;
- break;
- case ACPI_SBS_BLOCK_DATA:
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command);
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- len = min_t(u8, data->block[0], 32);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_BCNT, len);
- for (i = 0; i < len; i++)
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + i,
- data->block[i + 1]);
- }
- protocol |= ACPI_EC_SMB_PRTCL_BLOCK_DATA;
- break;
- default:
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "unsupported transaction %d", size));
- return (-1);
- }
-
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_ADDR, addr << 1);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_PRTCL, protocol);
-
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
-
- if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
- xmsleep(ACPI_EC_SMB_ACCESS_SLEEP1);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
- }
- if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
- xmsleep(ACPI_EC_SMB_ACCESS_SLEEP2);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
- }
- if ((~temp[0] & ACPI_EC_SMB_STS_DONE)
- || (temp[0] & ACPI_EC_SMB_STS_STATUS)) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "transaction %d error", size));
- return (-1);
- }
-
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- return (0);
- }
-
- switch (size) {
-
- case ACPI_SBS_WORD_DATA:
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA, temp);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + 1, temp + 1);
- data->word = (temp[1] << 8) | temp[0];
- break;
-
- case ACPI_SBS_BLOCK_DATA:
- len = 0;
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_BCNT, &len);
- len = min_t(u8, len, 32);
- for (i = 0; i < len; i++)
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + i,
- data->block + i + 1);
- data->block[0] = len;
- break;
- default:
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "unsupported transaction %d", size));
- return (-1);
- }
-
- return (0);
-}
-
-static int
-acpi_sbs_read_word(struct acpi_sbs *sbs, int addr, int func, u16 * word)
-{
- union sbs_rw_data data;
- int result = 0;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_READ, func,
- ACPI_SBS_WORD_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- } else {
- *word = data.word;
- }
-
- return result;
-}
-
-static int
-acpi_sbs_read_str(struct acpi_sbs *sbs, int addr, int func, char *str)
-{
- union sbs_rw_data data;
- int result = 0;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_READ, func,
- ACPI_SBS_BLOCK_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- } else {
- strncpy(str, (const char *)data.block + 1, data.block[0]);
- str[data.block[0]] = 0;
- }
-
- return result;
-}
-
-static int
-acpi_sbs_write_word(struct acpi_sbs *sbs, int addr, int func, int word)
-{
- union sbs_rw_data data;
- int result = 0;
-
- data.word = word;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_WRITE, func,
- ACPI_SBS_WORD_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- }
-
- return result;
-}
-
static int sbs_zombie(struct acpi_sbs *sbs)
{
return (sbs->zombie);
@@ -433,11 +222,11 @@ static int acpi_battery_get_present(struct acpi_battery *battery)
int result = 0;
int is_present = 0;
- result = acpi_sbs_read_word(battery->sbs,
- ACPI_SBSM_SMBUS_ADDR, 0x01, &state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
}
if (!result) {
is_present = (state & 0x000f) & (1 << battery->id);
@@ -461,19 +250,19 @@ static int acpi_battery_select(struct acpi_battery *battery)
* it causes charging to halt on SBSELs */
result =
- acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, &state);
+ acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
foo = (state & 0x0fff) | (1 << (battery->id + 12));
result =
- acpi_sbs_write_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, foo);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
}
@@ -487,11 +276,11 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
int result = 0;
s16 battery_system_info;
- result = acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x04,
- &battery_system_info);
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x04,
+ (u8 *)&battery_system_info);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
sbs->sbsm_present = 1;
@@ -504,50 +293,49 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
s16 specification_info;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03,
- &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
+ (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
battery->info.capacity_mode = (battery_mode & 0x8000) >> 15;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x10,
- &battery->info.full_charge_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
+ (u8 *)&battery->info.full_charge_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x18,
- &battery->info.design_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
+ (u8 *)&battery->info.design_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x19,
- &battery->info.design_voltage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
+ (u8 *)&battery->info.design_voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1a,
- &specification_info);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1a,
+ (u8 *)&specification_info);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -579,32 +367,32 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
battery->info.ipscale = 1;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1c,
- &battery->info.serial_number);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
+ (u8 *)&battery->info.serial_number);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x20,
- battery->info.manufacturer_name);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
+ (u8 *)battery->info.manufacturer_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x21,
- battery->info.device_name);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
+ (u8 *)battery->info.device_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x22,
- battery->info.device_chemistry);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
+ (u8 *)battery->info.device_chemistry);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -617,38 +405,37 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
static int acpi_battery_get_state(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x09,
- &battery->state.voltage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
+ (u8 *)&battery->state.voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0a,
- &battery->state.amperage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
+ (u8 *)&battery->state.amperage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0f,
- &battery->state.remaining_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
+ (u8 *)&battery->state.remaining_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x16,
- &battery->state.battery_state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
+ (u8 *)&battery->state.battery_state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -658,14 +445,13 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01,
- &battery->alarm.remaining_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&battery->alarm.remaining_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -677,7 +463,6 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
static int acpi_battery_set_alarm(struct acpi_battery *battery,
unsigned long alarm)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
int foo;
@@ -693,29 +478,30 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
if (alarm > 0) {
result =
- acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03,
- &battery_mode);
+ acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
+ (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
+ battery_mode &= 0xbfff;
result =
- acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01,
- battery_mode & 0xbfff);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
}
foo = alarm / (battery->info.capacity_mode ? 10 : 1);
- result = acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01, foo);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
@@ -726,7 +512,6 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
static int acpi_battery_set_mode(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
@@ -734,11 +519,11 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
goto end;
}
- result = acpi_sbs_read_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -747,19 +532,19 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
} else {
battery_mode |= 0x8000;
}
- result = acpi_sbs_write_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, battery_mode);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -815,12 +600,12 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
int result = 0;
s16 charger_status;
- result = acpi_sbs_read_word(sbs, ACPI_SBC_SMBUS_ADDR, 0x13,
- &charger_status);
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
+ (u8 *)&charger_status);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -1614,15 +1399,6 @@ static int acpi_sbs_add(struct acpi_device *device)
struct acpi_sbs *sbs = NULL;
int result = 0, remove_result = 0;
int id;
- acpi_status status = AE_OK;
- unsigned long val;
-
- status =
- acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Error obtaining _EC"));
- return -EIO;
- }
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
@@ -1635,8 +1411,8 @@ static int acpi_sbs_add(struct acpi_device *device)
sbs_mutex_lock(sbs);
- sbs->base = 0xff & (val >> 8);
sbs->device = device;
+ sbs->hc = acpi_driver_data(device->parent);
strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_SBS_CLASS);
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
new file mode 100644
index 0000000..046d7c3
--- /dev/null
+++ b/drivers/acpi/sbshc.c
@@ -0,0 +1,309 @@
+/*
+ * SMBus driver for ACPI Embedded Controller (v0.1)
+ *
+ * Copyright (c) 2007 Alexey Starikovskiy
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ */
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <acpi/actypes.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include "sbshc.h"
+
+#define ACPI_SMB_HC_CLASS "smbus_host_controller"
+#define ACPI_SMB_HC_DEVICE_NAME "ACPI SMBus HC"
+
+struct acpi_smb_hc {
+ struct acpi_ec *ec;
+ struct mutex lock;
+ wait_queue_head_t wait;
+ u8 offset;
+ u8 query_bit;
+ smbus_alarm_callback callback;
+ void *context;
+};
+
+static int acpi_smbus_hc_add(struct acpi_device *device);
+static int acpi_smbus_hc_remove(struct acpi_device *device, int type);
+
+static const struct acpi_device_id sbs_device_ids[] = {
+ {"ACPI0001", 0},
+ {"ACPI0005", 0},
+ {"", 0},
+};
+
+MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
+
+static struct acpi_driver acpi_smb_hc_driver = {
+ .name = "smbus_hc",
+ .class = ACPI_SMB_HC_CLASS,
+ .ids = sbs_device_ids,
+ .ops = {
+ .add = acpi_smbus_hc_add,
+ .remove = acpi_smbus_hc_remove,
+ },
+};
+
+union acpi_smb_status {
+ u8 raw;
+ struct {
+ u8 status:5;
+ u8 reserved:1;
+ u8 alarm:1;
+ u8 done:1;
+ } fields;
+};
+
+enum acpi_smb_status_codes {
+ SMBUS_OK = 0,
+ SMBUS_UNKNOWN_FAILURE = 0x07,
+ SMBUS_DEVICE_ADDRESS_NACK = 0x10,
+ SMBUS_DEVICE_ERROR = 0x11,
+ SMBUS_DEVICE_COMMAND_ACCESS_DENIED = 0x12,
+ SMBUS_UNKNOWN_ERROR = 0x13,
+ SMBUS_DEVICE_ACCESS_DENIED = 0x17,
+ SMBUS_TIMEOUT = 0x18,
+ SMBUS_HOST_UNSUPPORTED_PROTOCOL = 0x19,
+ SMBUS_BUSY = 0x1a,
+ SMBUS_PEC_ERROR = 0x1f,
+};
+
+enum acpi_smb_offset {
+ ACPI_SMB_PROTOCOL = 0, /* protocol, PEC */
+ ACPI_SMB_STATUS = 1, /* status */
+ ACPI_SMB_ADDRESS = 2, /* address */
+ ACPI_SMB_COMMAND = 3, /* command */
+ ACPI_SMB_DATA = 4, /* 32 data registers */
+ ACPI_SMB_BLOCK_COUNT = 0x24, /* number of data bytes */
+ ACPI_SMB_ALARM_ADDRESS = 0x25, /* alarm address */
+ ACPI_SMB_ALARM_DATA = 0x26, /* 2 bytes alarm data */
+};
+
+static inline int smb_hc_read(struct acpi_smb_hc *hc, u8 address, u8 *data)
+{
+ return ec_read(hc->offset + address, data);
+}
+
+static inline int smb_hc_write(struct acpi_smb_hc *hc, u8 address, u8 data)
+{
+ return ec_write(hc->offset + address, data);
+}
+
+static inline int smb_check_done(struct acpi_smb_hc *hc)
+{
+ union acpi_smb_status status = {.raw = 0};
+ smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw);
+ return status.fields.done && (status.fields.status == SMBUS_OK);
+}
+
+static int wait_transaction_complete(struct acpi_smb_hc *hc, int timeout)
+{
+ if (wait_event_timeout(hc->wait, smb_check_done(hc),
+ msecs_to_jiffies(timeout)))
+ return 0;
+ else
+ return -ETIME;
+}
+
+int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data, u8 length)
+{
+ int ret = -EFAULT, i;
+ u8 temp, sz = 0;
+
+ mutex_lock(&hc->lock);
+ if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
+ goto end;
+ if (temp) {
+ ret = -EBUSY;
+ goto end;
+ }
+ smb_hc_write(hc, ACPI_SMB_COMMAND, command);
+ smb_hc_write(hc, ACPI_SMB_COMMAND, command);
+ if (!(protocol & 0x01)) {
+ smb_hc_write(hc, ACPI_SMB_BLOCK_COUNT, length);
+ for (i = 0; i < length; ++i)
+ smb_hc_write(hc, ACPI_SMB_DATA + i, data[i]);
+ }
+ smb_hc_write(hc, ACPI_SMB_ADDRESS, address << 1);
+ smb_hc_write(hc, ACPI_SMB_PROTOCOL, protocol);
+ /*
+ * Wait for completion. Save the status code, data size,
+ * and data into the return package (if required by the protocol).
+ */
+ ret = wait_transaction_complete(hc, 1000);
+ if (ret || !(protocol & 0x01))
+ goto end;
+ switch (protocol) {
+ case SMBUS_RECEIVE_BYTE:
+ case SMBUS_READ_BYTE:
+ sz = 1;
+ break;
+ case SMBUS_READ_WORD:
+ sz = 2;
+ break;
+ case SMBUS_READ_BLOCK:
+ if (smb_hc_read(hc, ACPI_SMB_BLOCK_COUNT, &sz)) {
+ ret = -EFAULT;
+ goto end;
+ }
+ sz &= 0x1f;
+ break;
+ }
+ for (i = 0; i < sz; ++i)
+ smb_hc_read(hc, ACPI_SMB_DATA + i, &data[i]);
+ end:
+ mutex_unlock(&hc->lock);
+ return ret;
+}
+
+int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data)
+{
+ return acpi_smbus_transaction(hc, protocol, address, command, data, 0);
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_read);
+
+int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data, u8 length)
+{
+ return acpi_smbus_transaction(hc, protocol, address, command, data, length);
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_write);
+
+int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
+ smbus_alarm_callback callback, void *context)
+{
+ mutex_lock(&hc->lock);
+ hc->callback = callback;
+ hc->context = context;
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_register_callback);
+
+int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc)
+{
+ mutex_lock(&hc->lock);
+ hc->callback = NULL;
+ hc->context = NULL;
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback);
+
+static void acpi_smbus_callback(void *context)
+{
+ struct acpi_smb_hc *hc = context;
+
+ if (hc->callback)
+ hc->callback(hc->context);
+}
+
+static int smbus_alarm(void *context)
+{
+ struct acpi_smb_hc *hc = context;
+ union acpi_smb_status status;
+ if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
+ return 0;
+ /* Check if it is only a completion notify */
+ if (status.fields.done)
+ wake_up(&hc->wait);
+ if (!status.fields.alarm)
+ return 0;
+ mutex_lock(&hc->lock);
+ smb_hc_write(hc, ACPI_SMB_STATUS, status.raw);
+ if (hc->callback)
+ acpi_os_execute(OSL_GPE_HANDLER, acpi_smbus_callback, hc);
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+typedef int (*acpi_ec_query_func) (void *data);
+
+extern int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
+ acpi_handle handle, acpi_ec_query_func func,
+ void *data);
+
+static int acpi_smbus_hc_add(struct acpi_device *device)
+{
+ int status;
+ unsigned long val;
+ struct acpi_smb_hc *hc;
+
+ if (!device)
+ return -EINVAL;
+
+ status = acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX "error obtaining _EC.\n");
+ return -EIO;
+ }
+
+ strcpy(acpi_device_name(device), ACPI_SMB_HC_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ACPI_SMB_HC_CLASS);
+
+ hc = kzalloc(sizeof(struct acpi_smb_hc), GFP_KERNEL);
+ if (!hc)
+ return -ENOMEM;
+ mutex_init(&hc->lock);
+ init_waitqueue_head(&hc->wait);
+
+ hc->ec = acpi_driver_data(device->parent);
+ hc->offset = (val >> 8) & 0xff;
+ hc->query_bit = val & 0xff;
+ acpi_driver_data(device) = hc;
+
+ acpi_ec_add_query_handler(hc->ec, hc->query_bit, NULL, smbus_alarm, hc);
+ printk(KERN_INFO PREFIX "SBS HC: EC = 0x%p, offset = 0x%0x, query_bit = 0x%0x\n",
+ hc->ec, hc->offset, hc->query_bit);
+
+ return 0;
+}
+
+extern void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
+
+static int acpi_smbus_hc_remove(struct acpi_device *device, int type)
+{
+ struct acpi_smb_hc *hc;
+
+ if (!device)
+ return -EINVAL;
+
+ hc = acpi_driver_data(device);
+ acpi_ec_remove_query_handler(hc->ec, hc->query_bit);
+ kfree(hc);
+ return 0;
+}
+
+static int __init acpi_smb_hc_init(void)
+{
+ int result;
+
+ result = acpi_bus_register_driver(&acpi_smb_hc_driver);
+ if (result < 0)
+ return -ENODEV;
+ return 0;
+}
+
+static void __exit acpi_smb_hc_exit(void)
+{
+ acpi_bus_unregister_driver(&acpi_smb_hc_driver);
+}
+
+module_init(acpi_smb_hc_init);
+module_exit(acpi_smb_hc_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexey Starikovskiy");
+MODULE_DESCRIPTION("ACPI SMBus HC driver");
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
new file mode 100644
index 0000000..3bda349
--- /dev/null
+++ b/drivers/acpi/sbshc.h
@@ -0,0 +1,27 @@
+struct acpi_smb_hc;
+enum acpi_smb_protocol {
+ SMBUS_WRITE_QUICK = 2,
+ SMBUS_READ_QUICK = 3,
+ SMBUS_SEND_BYTE = 4,
+ SMBUS_RECEIVE_BYTE = 5,
+ SMBUS_WRITE_BYTE = 6,
+ SMBUS_READ_BYTE = 7,
+ SMBUS_WRITE_WORD = 8,
+ SMBUS_READ_WORD = 9,
+ SMBUS_WRITE_BLOCK = 0xa,
+ SMBUS_READ_BLOCK = 0xb,
+ SMBUS_PROCESS_CALL = 0xc,
+ SMBUS_BLOCK_PROCESS_CALL = 0xd,
+};
+
+static const u8 SMBUS_PEC = 0x80;
+
+typedef void (*smbus_alarm_callback)(void *context);
+
+extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 * data);
+extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
+ u8 command, u8 * data, u8 length);
+extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
+ smbus_alarm_callback callback, void *context);
+extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 10/32] ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Replace poll-based host controller driver with the notify-based one.
Split it out of sbs.c.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/Makefile | 1 +
drivers/acpi/sbs.c | 374 ++++++++++---------------------------------------
drivers/acpi/sbshc.c | 309 ++++++++++++++++++++++++++++++++++++++++
drivers/acpi/sbshc.h | 27 ++++
4 files changed, 412 insertions(+), 299 deletions(-)
create mode 100644 drivers/acpi/sbshc.c
create mode 100644 drivers/acpi/sbshc.h
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index d4336f1..54e3ab0 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
obj-y += cm_sbs.o
obj-$(CONFIG_ACPI_SBS) += sbs.o
+obj-$(CONFIG_ACPI_SBS) += sbshc.o
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 33ba4bf..7bb8c62 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -34,6 +34,8 @@
#include <linux/jiffies.h>
#include <linux/delay.h>
+#include "sbshc.h"
+
#define ACPI_SBS_COMPONENT 0x00080000
#define ACPI_SBS_CLASS "sbs"
#define ACPI_AC_CLASS "ac_adapter"
@@ -59,28 +61,6 @@ MODULE_AUTHOR("Rich Townsend");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
-#define xmsleep(t) msleep(t)
-
-#define ACPI_EC_SMB_PRTCL 0x00 /* protocol, PEC */
-
-#define ACPI_EC_SMB_STS 0x01 /* status */
-#define ACPI_EC_SMB_ADDR 0x02 /* address */
-#define ACPI_EC_SMB_CMD 0x03 /* command */
-#define ACPI_EC_SMB_DATA 0x04 /* 32 data registers */
-#define ACPI_EC_SMB_BCNT 0x24 /* number of data bytes */
-
-#define ACPI_EC_SMB_STS_DONE 0x80
-#define ACPI_EC_SMB_STS_STATUS 0x1f
-
-#define ACPI_EC_SMB_PRTCL_WRITE 0x00
-#define ACPI_EC_SMB_PRTCL_READ 0x01
-#define ACPI_EC_SMB_PRTCL_WORD_DATA 0x08
-#define ACPI_EC_SMB_PRTCL_BLOCK_DATA 0x0a
-
-#define ACPI_EC_SMB_TRANSACTION_SLEEP 1
-#define ACPI_EC_SMB_ACCESS_SLEEP1 1
-#define ACPI_EC_SMB_ACCESS_SLEEP2 10
-
#define DEF_CAPACITY_UNIT 3
#define MAH_CAPACITY_UNIT 1
#define MWH_CAPACITY_UNIT 2
@@ -103,12 +83,6 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-#define ACPI_SBS_SMBUS_READ 1
-#define ACPI_SBS_SMBUS_WRITE 2
-
-#define ACPI_SBS_WORD_DATA 1
-#define ACPI_SBS_BLOCK_DATA 2
-
#define UPDATE_DELAY 10
/* 0 - every time, > 0 - by update_time */
@@ -124,8 +98,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_resume(struct acpi_device *device);
static const struct acpi_device_id sbs_device_ids[] = {
- {"ACPI0001", 0},
- {"ACPI0005", 0},
+ {"ACPI0002", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
@@ -182,8 +155,8 @@ struct acpi_battery {
};
struct acpi_sbs {
- int base;
struct acpi_device *device;
+ struct acpi_smb_hc *hc;
struct mutex mutex;
int sbsm_present;
int sbsm_batteries_supported;
@@ -199,190 +172,6 @@ struct acpi_sbs {
static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
static void acpi_sbs_update_time(void *data);
-union sbs_rw_data {
- u16 word;
- u8 block[ACPI_SBS_BLOCK_MAX + 2];
-};
-
-static int acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr,
- char read_write, u8 command, int size,
- union sbs_rw_data *data);
-
-/* --------------------------------------------------------------------------
- SMBus Communication
- -------------------------------------------------------------------------- */
-
-static int acpi_ec_sbs_read(struct acpi_sbs *sbs, u8 address, u8 * data)
-{
- u8 val;
- int err;
-
- err = ec_read(sbs->base + address, &val);
- if (!err) {
- *data = val;
- }
- xmsleep(ACPI_EC_SMB_TRANSACTION_SLEEP);
- return (err);
-}
-
-static int acpi_ec_sbs_write(struct acpi_sbs *sbs, u8 address, u8 data)
-{
- int err;
-
- err = ec_write(sbs->base + address, data);
- return (err);
-}
-
-static int
-acpi_ec_sbs_access(struct acpi_sbs *sbs, u16 addr,
- char read_write, u8 command, int size,
- union sbs_rw_data *data)
-{
- unsigned char protocol, len = 0, temp[2] = { 0, 0 };
- int i;
-
- if (read_write == ACPI_SBS_SMBUS_READ) {
- protocol = ACPI_EC_SMB_PRTCL_READ;
- } else {
- protocol = ACPI_EC_SMB_PRTCL_WRITE;
- }
-
- switch (size) {
-
- case ACPI_SBS_WORD_DATA:
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command);
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA, data->word);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + 1,
- data->word >> 8);
- }
- protocol |= ACPI_EC_SMB_PRTCL_WORD_DATA;
- break;
- case ACPI_SBS_BLOCK_DATA:
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_CMD, command);
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- len = min_t(u8, data->block[0], 32);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_BCNT, len);
- for (i = 0; i < len; i++)
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_DATA + i,
- data->block[i + 1]);
- }
- protocol |= ACPI_EC_SMB_PRTCL_BLOCK_DATA;
- break;
- default:
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "unsupported transaction %d", size));
- return (-1);
- }
-
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_ADDR, addr << 1);
- acpi_ec_sbs_write(sbs, ACPI_EC_SMB_PRTCL, protocol);
-
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
-
- if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
- xmsleep(ACPI_EC_SMB_ACCESS_SLEEP1);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
- }
- if (~temp[0] & ACPI_EC_SMB_STS_DONE) {
- xmsleep(ACPI_EC_SMB_ACCESS_SLEEP2);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_STS, temp);
- }
- if ((~temp[0] & ACPI_EC_SMB_STS_DONE)
- || (temp[0] & ACPI_EC_SMB_STS_STATUS)) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "transaction %d error", size));
- return (-1);
- }
-
- if (read_write == ACPI_SBS_SMBUS_WRITE) {
- return (0);
- }
-
- switch (size) {
-
- case ACPI_SBS_WORD_DATA:
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA, temp);
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + 1, temp + 1);
- data->word = (temp[1] << 8) | temp[0];
- break;
-
- case ACPI_SBS_BLOCK_DATA:
- len = 0;
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_BCNT, &len);
- len = min_t(u8, len, 32);
- for (i = 0; i < len; i++)
- acpi_ec_sbs_read(sbs, ACPI_EC_SMB_DATA + i,
- data->block + i + 1);
- data->block[0] = len;
- break;
- default:
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "unsupported transaction %d", size));
- return (-1);
- }
-
- return (0);
-}
-
-static int
-acpi_sbs_read_word(struct acpi_sbs *sbs, int addr, int func, u16 * word)
-{
- union sbs_rw_data data;
- int result = 0;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_READ, func,
- ACPI_SBS_WORD_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- } else {
- *word = data.word;
- }
-
- return result;
-}
-
-static int
-acpi_sbs_read_str(struct acpi_sbs *sbs, int addr, int func, char *str)
-{
- union sbs_rw_data data;
- int result = 0;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_READ, func,
- ACPI_SBS_BLOCK_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- } else {
- strncpy(str, (const char *)data.block + 1, data.block[0]);
- str[data.block[0]] = 0;
- }
-
- return result;
-}
-
-static int
-acpi_sbs_write_word(struct acpi_sbs *sbs, int addr, int func, int word)
-{
- union sbs_rw_data data;
- int result = 0;
-
- data.word = word;
-
- result = acpi_ec_sbs_access(sbs, addr,
- ACPI_SBS_SMBUS_WRITE, func,
- ACPI_SBS_WORD_DATA, &data);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ec_sbs_access() failed"));
- }
-
- return result;
-}
-
static int sbs_zombie(struct acpi_sbs *sbs)
{
return (sbs->zombie);
@@ -433,11 +222,11 @@ static int acpi_battery_get_present(struct acpi_battery *battery)
int result = 0;
int is_present = 0;
- result = acpi_sbs_read_word(battery->sbs,
- ACPI_SBSM_SMBUS_ADDR, 0x01, &state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
}
if (!result) {
is_present = (state & 0x000f) & (1 << battery->id);
@@ -461,19 +250,19 @@ static int acpi_battery_select(struct acpi_battery *battery)
* it causes charging to halt on SBSELs */
result =
- acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, &state);
+ acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
foo = (state & 0x0fff) | (1 << (battery->id + 12));
result =
- acpi_sbs_write_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x01, foo);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
}
@@ -487,11 +276,11 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
int result = 0;
s16 battery_system_info;
- result = acpi_sbs_read_word(sbs, ACPI_SBSM_SMBUS_ADDR, 0x04,
- &battery_system_info);
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x04,
+ (u8 *)&battery_system_info);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
sbs->sbsm_present = 1;
@@ -504,50 +293,49 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
s16 specification_info;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03,
- &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
+ (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
battery->info.capacity_mode = (battery_mode & 0x8000) >> 15;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x10,
- &battery->info.full_charge_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
+ (u8 *)&battery->info.full_charge_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x18,
- &battery->info.design_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
+ (u8 *)&battery->info.design_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x19,
- &battery->info.design_voltage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
+ (u8 *)&battery->info.design_voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1a,
- &specification_info);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1a,
+ (u8 *)&specification_info);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -579,32 +367,32 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
battery->info.ipscale = 1;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x1c,
- &battery->info.serial_number);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
+ (u8 *)&battery->info.serial_number);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x20,
- battery->info.manufacturer_name);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
+ (u8 *)battery->info.manufacturer_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x21,
- battery->info.device_name);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
+ (u8 *)battery->info.device_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
goto end;
}
- result = acpi_sbs_read_str(sbs, ACPI_SB_SMBUS_ADDR, 0x22,
- battery->info.device_chemistry);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
+ (u8 *)battery->info.device_chemistry);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -617,38 +405,37 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
static int acpi_battery_get_state(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x09,
- &battery->state.voltage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
+ (u8 *)&battery->state.voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0a,
- &battery->state.amperage);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
+ (u8 *)&battery->state.amperage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x0f,
- &battery->state.remaining_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
+ (u8 *)&battery->state.remaining_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x16,
- &battery->state.battery_state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
+ (u8 *)&battery->state.battery_state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -658,14 +445,13 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- result = acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01,
- &battery->alarm.remaining_capacity);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&battery->alarm.remaining_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -677,7 +463,6 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
static int acpi_battery_set_alarm(struct acpi_battery *battery,
unsigned long alarm)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
int foo;
@@ -693,29 +478,30 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
if (alarm > 0) {
result =
- acpi_sbs_read_word(sbs, ACPI_SB_SMBUS_ADDR, 0x03,
- &battery_mode);
+ acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
+ (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
+ battery_mode &= 0xbfff;
result =
- acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01,
- battery_mode & 0xbfff);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
}
foo = alarm / (battery->info.capacity_mode ? 10 : 1);
- result = acpi_sbs_write_word(sbs, ACPI_SB_SMBUS_ADDR, 0x01, foo);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
@@ -726,7 +512,6 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
static int acpi_battery_set_mode(struct acpi_battery *battery)
{
- struct acpi_sbs *sbs = battery->sbs;
int result = 0;
s16 battery_mode;
@@ -734,11 +519,11 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
goto end;
}
- result = acpi_sbs_read_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -747,19 +532,19 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
} else {
battery_mode |= 0x8000;
}
- result = acpi_sbs_write_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, battery_mode);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_write_word() failed"));
+ "acpi_smbus_write() failed"));
goto end;
}
- result = acpi_sbs_read_word(sbs,
- ACPI_SB_SMBUS_ADDR, 0x03, &battery_mode);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -815,12 +600,12 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
int result = 0;
s16 charger_status;
- result = acpi_sbs_read_word(sbs, ACPI_SBC_SMBUS_ADDR, 0x13,
- &charger_status);
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
+ (u8 *)&charger_status);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_word() failed"));
+ "acpi_smbus_read() failed"));
goto end;
}
@@ -1614,15 +1399,6 @@ static int acpi_sbs_add(struct acpi_device *device)
struct acpi_sbs *sbs = NULL;
int result = 0, remove_result = 0;
int id;
- acpi_status status = AE_OK;
- unsigned long val;
-
- status =
- acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "Error obtaining _EC"));
- return -EIO;
- }
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
@@ -1635,8 +1411,8 @@ static int acpi_sbs_add(struct acpi_device *device)
sbs_mutex_lock(sbs);
- sbs->base = 0xff & (val >> 8);
sbs->device = device;
+ sbs->hc = acpi_driver_data(device->parent);
strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_SBS_CLASS);
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
new file mode 100644
index 0000000..046d7c3
--- /dev/null
+++ b/drivers/acpi/sbshc.c
@@ -0,0 +1,309 @@
+/*
+ * SMBus driver for ACPI Embedded Controller (v0.1)
+ *
+ * Copyright (c) 2007 Alexey Starikovskiy
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ */
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <acpi/actypes.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include "sbshc.h"
+
+#define ACPI_SMB_HC_CLASS "smbus_host_controller"
+#define ACPI_SMB_HC_DEVICE_NAME "ACPI SMBus HC"
+
+struct acpi_smb_hc {
+ struct acpi_ec *ec;
+ struct mutex lock;
+ wait_queue_head_t wait;
+ u8 offset;
+ u8 query_bit;
+ smbus_alarm_callback callback;
+ void *context;
+};
+
+static int acpi_smbus_hc_add(struct acpi_device *device);
+static int acpi_smbus_hc_remove(struct acpi_device *device, int type);
+
+static const struct acpi_device_id sbs_device_ids[] = {
+ {"ACPI0001", 0},
+ {"ACPI0005", 0},
+ {"", 0},
+};
+
+MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
+
+static struct acpi_driver acpi_smb_hc_driver = {
+ .name = "smbus_hc",
+ .class = ACPI_SMB_HC_CLASS,
+ .ids = sbs_device_ids,
+ .ops = {
+ .add = acpi_smbus_hc_add,
+ .remove = acpi_smbus_hc_remove,
+ },
+};
+
+union acpi_smb_status {
+ u8 raw;
+ struct {
+ u8 status:5;
+ u8 reserved:1;
+ u8 alarm:1;
+ u8 done:1;
+ } fields;
+};
+
+enum acpi_smb_status_codes {
+ SMBUS_OK = 0,
+ SMBUS_UNKNOWN_FAILURE = 0x07,
+ SMBUS_DEVICE_ADDRESS_NACK = 0x10,
+ SMBUS_DEVICE_ERROR = 0x11,
+ SMBUS_DEVICE_COMMAND_ACCESS_DENIED = 0x12,
+ SMBUS_UNKNOWN_ERROR = 0x13,
+ SMBUS_DEVICE_ACCESS_DENIED = 0x17,
+ SMBUS_TIMEOUT = 0x18,
+ SMBUS_HOST_UNSUPPORTED_PROTOCOL = 0x19,
+ SMBUS_BUSY = 0x1a,
+ SMBUS_PEC_ERROR = 0x1f,
+};
+
+enum acpi_smb_offset {
+ ACPI_SMB_PROTOCOL = 0, /* protocol, PEC */
+ ACPI_SMB_STATUS = 1, /* status */
+ ACPI_SMB_ADDRESS = 2, /* address */
+ ACPI_SMB_COMMAND = 3, /* command */
+ ACPI_SMB_DATA = 4, /* 32 data registers */
+ ACPI_SMB_BLOCK_COUNT = 0x24, /* number of data bytes */
+ ACPI_SMB_ALARM_ADDRESS = 0x25, /* alarm address */
+ ACPI_SMB_ALARM_DATA = 0x26, /* 2 bytes alarm data */
+};
+
+static inline int smb_hc_read(struct acpi_smb_hc *hc, u8 address, u8 *data)
+{
+ return ec_read(hc->offset + address, data);
+}
+
+static inline int smb_hc_write(struct acpi_smb_hc *hc, u8 address, u8 data)
+{
+ return ec_write(hc->offset + address, data);
+}
+
+static inline int smb_check_done(struct acpi_smb_hc *hc)
+{
+ union acpi_smb_status status = {.raw = 0};
+ smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw);
+ return status.fields.done && (status.fields.status == SMBUS_OK);
+}
+
+static int wait_transaction_complete(struct acpi_smb_hc *hc, int timeout)
+{
+ if (wait_event_timeout(hc->wait, smb_check_done(hc),
+ msecs_to_jiffies(timeout)))
+ return 0;
+ else
+ return -ETIME;
+}
+
+int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data, u8 length)
+{
+ int ret = -EFAULT, i;
+ u8 temp, sz = 0;
+
+ mutex_lock(&hc->lock);
+ if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
+ goto end;
+ if (temp) {
+ ret = -EBUSY;
+ goto end;
+ }
+ smb_hc_write(hc, ACPI_SMB_COMMAND, command);
+ smb_hc_write(hc, ACPI_SMB_COMMAND, command);
+ if (!(protocol & 0x01)) {
+ smb_hc_write(hc, ACPI_SMB_BLOCK_COUNT, length);
+ for (i = 0; i < length; ++i)
+ smb_hc_write(hc, ACPI_SMB_DATA + i, data[i]);
+ }
+ smb_hc_write(hc, ACPI_SMB_ADDRESS, address << 1);
+ smb_hc_write(hc, ACPI_SMB_PROTOCOL, protocol);
+ /*
+ * Wait for completion. Save the status code, data size,
+ * and data into the return package (if required by the protocol).
+ */
+ ret = wait_transaction_complete(hc, 1000);
+ if (ret || !(protocol & 0x01))
+ goto end;
+ switch (protocol) {
+ case SMBUS_RECEIVE_BYTE:
+ case SMBUS_READ_BYTE:
+ sz = 1;
+ break;
+ case SMBUS_READ_WORD:
+ sz = 2;
+ break;
+ case SMBUS_READ_BLOCK:
+ if (smb_hc_read(hc, ACPI_SMB_BLOCK_COUNT, &sz)) {
+ ret = -EFAULT;
+ goto end;
+ }
+ sz &= 0x1f;
+ break;
+ }
+ for (i = 0; i < sz; ++i)
+ smb_hc_read(hc, ACPI_SMB_DATA + i, &data[i]);
+ end:
+ mutex_unlock(&hc->lock);
+ return ret;
+}
+
+int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data)
+{
+ return acpi_smbus_transaction(hc, protocol, address, command, data, 0);
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_read);
+
+int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 *data, u8 length)
+{
+ return acpi_smbus_transaction(hc, protocol, address, command, data, length);
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_write);
+
+int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
+ smbus_alarm_callback callback, void *context)
+{
+ mutex_lock(&hc->lock);
+ hc->callback = callback;
+ hc->context = context;
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_register_callback);
+
+int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc)
+{
+ mutex_lock(&hc->lock);
+ hc->callback = NULL;
+ hc->context = NULL;
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback);
+
+static void acpi_smbus_callback(void *context)
+{
+ struct acpi_smb_hc *hc = context;
+
+ if (hc->callback)
+ hc->callback(hc->context);
+}
+
+static int smbus_alarm(void *context)
+{
+ struct acpi_smb_hc *hc = context;
+ union acpi_smb_status status;
+ if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
+ return 0;
+ /* Check if it is only a completion notify */
+ if (status.fields.done)
+ wake_up(&hc->wait);
+ if (!status.fields.alarm)
+ return 0;
+ mutex_lock(&hc->lock);
+ smb_hc_write(hc, ACPI_SMB_STATUS, status.raw);
+ if (hc->callback)
+ acpi_os_execute(OSL_GPE_HANDLER, acpi_smbus_callback, hc);
+ mutex_unlock(&hc->lock);
+ return 0;
+}
+
+typedef int (*acpi_ec_query_func) (void *data);
+
+extern int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
+ acpi_handle handle, acpi_ec_query_func func,
+ void *data);
+
+static int acpi_smbus_hc_add(struct acpi_device *device)
+{
+ int status;
+ unsigned long val;
+ struct acpi_smb_hc *hc;
+
+ if (!device)
+ return -EINVAL;
+
+ status = acpi_evaluate_integer(device->handle, "_EC", NULL, &val);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX "error obtaining _EC.\n");
+ return -EIO;
+ }
+
+ strcpy(acpi_device_name(device), ACPI_SMB_HC_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ACPI_SMB_HC_CLASS);
+
+ hc = kzalloc(sizeof(struct acpi_smb_hc), GFP_KERNEL);
+ if (!hc)
+ return -ENOMEM;
+ mutex_init(&hc->lock);
+ init_waitqueue_head(&hc->wait);
+
+ hc->ec = acpi_driver_data(device->parent);
+ hc->offset = (val >> 8) & 0xff;
+ hc->query_bit = val & 0xff;
+ acpi_driver_data(device) = hc;
+
+ acpi_ec_add_query_handler(hc->ec, hc->query_bit, NULL, smbus_alarm, hc);
+ printk(KERN_INFO PREFIX "SBS HC: EC = 0x%p, offset = 0x%0x, query_bit = 0x%0x\n",
+ hc->ec, hc->offset, hc->query_bit);
+
+ return 0;
+}
+
+extern void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
+
+static int acpi_smbus_hc_remove(struct acpi_device *device, int type)
+{
+ struct acpi_smb_hc *hc;
+
+ if (!device)
+ return -EINVAL;
+
+ hc = acpi_driver_data(device);
+ acpi_ec_remove_query_handler(hc->ec, hc->query_bit);
+ kfree(hc);
+ return 0;
+}
+
+static int __init acpi_smb_hc_init(void)
+{
+ int result;
+
+ result = acpi_bus_register_driver(&acpi_smb_hc_driver);
+ if (result < 0)
+ return -ENODEV;
+ return 0;
+}
+
+static void __exit acpi_smb_hc_exit(void)
+{
+ acpi_bus_unregister_driver(&acpi_smb_hc_driver);
+}
+
+module_init(acpi_smb_hc_init);
+module_exit(acpi_smb_hc_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexey Starikovskiy");
+MODULE_DESCRIPTION("ACPI SMBus HC driver");
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
new file mode 100644
index 0000000..3bda349
--- /dev/null
+++ b/drivers/acpi/sbshc.h
@@ -0,0 +1,27 @@
+struct acpi_smb_hc;
+enum acpi_smb_protocol {
+ SMBUS_WRITE_QUICK = 2,
+ SMBUS_READ_QUICK = 3,
+ SMBUS_SEND_BYTE = 4,
+ SMBUS_RECEIVE_BYTE = 5,
+ SMBUS_WRITE_BYTE = 6,
+ SMBUS_READ_BYTE = 7,
+ SMBUS_WRITE_WORD = 8,
+ SMBUS_READ_WORD = 9,
+ SMBUS_WRITE_BLOCK = 0xa,
+ SMBUS_READ_BLOCK = 0xb,
+ SMBUS_PROCESS_CALL = 0xc,
+ SMBUS_BLOCK_PROCESS_CALL = 0xd,
+};
+
+static const u8 SMBUS_PEC = 0x80;
+
+typedef void (*smbus_alarm_callback)(void *context);
+
+extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
+ u8 command, u8 * data);
+extern int acpi_smbus_write(struct acpi_smb_hc *hc, u8 protocol, u8 slave_address,
+ u8 command, u8 * data, u8 length);
+extern int acpi_smbus_register_callback(struct acpi_smb_hc *hc,
+ smbus_alarm_callback callback, void *context);
+extern int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 11/32] ACPI: SBS: Simplify data structures in SBS
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 282 +++++++++++++++++++++++++---------------------------
1 files changed, 135 insertions(+), 147 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 7bb8c62..f35fe63 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -88,10 +88,10 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
/* 0 - every time, > 0 - by update_time */
static unsigned int update_time = 120;
-static unsigned int capacity_mode = CAPACITY_UNIT;
+static unsigned int mode = CAPACITY_UNIT;
module_param(update_time, uint, 0644);
-module_param(capacity_mode, uint, 0444);
+module_param(mode, uint, 0444);
static int acpi_sbs_add(struct acpi_device *device);
static int acpi_sbs_remove(struct acpi_device *device, int type);
@@ -114,59 +114,43 @@ static struct acpi_driver acpi_sbs_driver = {
},
};
-struct acpi_ac {
- int ac_present;
-};
-
-struct acpi_battery_info {
- int capacity_mode;
- s16 full_charge_capacity;
- s16 design_capacity;
- s16 design_voltage;
- int vscale;
- int ipscale;
- s16 serial_number;
- char manufacturer_name[ACPI_SBS_BLOCK_MAX + 3];
- char device_name[ACPI_SBS_BLOCK_MAX + 3];
- char device_chemistry[ACPI_SBS_BLOCK_MAX + 3];
-};
-
-struct acpi_battery_state {
- s16 voltage;
- s16 amperage;
- s16 remaining_capacity;
- s16 battery_state;
-};
-
-struct acpi_battery_alarm {
- s16 remaining_capacity;
-};
-
struct acpi_battery {
- int alive;
- int id;
- int init_state;
- int battery_present;
struct acpi_sbs *sbs;
- struct acpi_battery_info info;
- struct acpi_battery_state state;
- struct acpi_battery_alarm alarm;
- struct proc_dir_entry *battery_entry;
+ struct proc_dir_entry *proc_entry;
+ int vscale;
+ int ipscale;
+ char manufacturer_name[ACPI_SBS_BLOCK_MAX];
+ char device_name[ACPI_SBS_BLOCK_MAX];
+ char device_chemistry[ACPI_SBS_BLOCK_MAX];
+ u16 full_charge_capacity;
+ u16 design_capacity;
+ u16 design_voltage;
+ u16 serial_number;
+ u16 voltage_now;
+ s16 current_now;
+ u16 capacity_now;
+ u16 state;
+ u16 alarm_capacity;
+ u16 mode;
+ u8 id;
+ u8 alive:1;
+ u8 init_state:1;
+ u8 present:1;
};
struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex mutex;
- int sbsm_present;
- int sbsm_batteries_supported;
struct proc_dir_entry *ac_entry;
- struct acpi_ac ac;
struct acpi_battery battery[MAX_SBS_BAT];
int zombie;
struct timer_list update_timer;
int run_cnt;
int update_proc_flg;
+ u8 batteries_supported;
+ u8 manager_present:1;
+ u8 charger_present:1;
};
static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
@@ -231,7 +215,7 @@ static int acpi_battery_get_present(struct acpi_battery *battery)
if (!result) {
is_present = (state & 0x000f) & (1 << battery->id);
}
- battery->battery_present = is_present;
+ battery->present = is_present;
return result;
}
@@ -243,14 +227,14 @@ static int acpi_battery_select(struct acpi_battery *battery)
s16 state;
int foo;
- if (sbs->sbsm_present) {
+ if (sbs->manager_present) {
/* Take special care not to knobble other nibbles of
* state (aka selector_state), since
* it causes charging to halt on SBSELs */
- result =
- acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -258,8 +242,8 @@ static int acpi_battery_select(struct acpi_battery *battery)
}
foo = (state & 0x0fff) | (1 << (battery->id + 12));
- result =
- acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -283,8 +267,7 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
"acpi_smbus_read() failed"));
goto end;
}
- sbs->sbsm_present = 1;
- sbs->sbsm_batteries_supported = battery_system_info & 0x000f;
+ sbs->manager_present = 1;
end:
@@ -304,10 +287,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
"acpi_smbus_read() failed"));
goto end;
}
- battery->info.capacity_mode = (battery_mode & 0x8000) >> 15;
+ battery->mode = (battery_mode & 0x8000) >> 15;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
- (u8 *)&battery->info.full_charge_capacity);
+ (u8 *)&battery->full_charge_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -315,7 +298,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
- (u8 *)&battery->info.design_capacity);
+ (u8 *)&battery->design_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -324,7 +307,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
- (u8 *)&battery->info.design_voltage);
+ (u8 *)&battery->design_voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -341,34 +324,34 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
switch ((specification_info & 0x0f00) >> 8) {
case 1:
- battery->info.vscale = 10;
+ battery->vscale = 10;
break;
case 2:
- battery->info.vscale = 100;
+ battery->vscale = 100;
break;
case 3:
- battery->info.vscale = 1000;
+ battery->vscale = 1000;
break;
default:
- battery->info.vscale = 1;
+ battery->vscale = 1;
}
switch ((specification_info & 0xf000) >> 12) {
case 1:
- battery->info.ipscale = 10;
+ battery->ipscale = 10;
break;
case 2:
- battery->info.ipscale = 100;
+ battery->ipscale = 100;
break;
case 3:
- battery->info.ipscale = 1000;
+ battery->ipscale = 1000;
break;
default:
- battery->info.ipscale = 1;
+ battery->ipscale = 1;
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
- (u8 *)&battery->info.serial_number);
+ (u8 *)&battery->serial_number);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -376,7 +359,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
- (u8 *)battery->info.manufacturer_name);
+ (u8 *)battery->manufacturer_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -384,7 +367,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
- (u8 *)battery->info.device_name);
+ (u8 *)battery->device_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -392,7 +375,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
- (u8 *)battery->info.device_chemistry);
+ (u8 *)battery->device_chemistry);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -408,7 +391,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
int result = 0;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
- (u8 *)&battery->state.voltage);
+ (u8 *)&battery->voltage_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -416,7 +399,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
- (u8 *)&battery->state.amperage);
+ (u8 *)&battery->current_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -424,7 +407,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
- (u8 *)&battery->state.remaining_capacity);
+ (u8 *)&battery->capacity_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -432,7 +415,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
- (u8 *)&battery->state.battery_state);
+ (u8 *)&battery->state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -448,7 +431,7 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
int result = 0;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery->alarm.remaining_capacity);
+ (u8 *)&battery->alarm_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -497,8 +480,9 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
}
}
- foo = alarm / (battery->info.capacity_mode ? 10 : 1);
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
+ foo = alarm / (battery->mode ? 10 : 1);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -515,25 +499,25 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
int result = 0;
s16 battery_mode;
- if (capacity_mode == DEF_CAPACITY_UNIT) {
+ if (mode == DEF_CAPACITY_UNIT) {
goto end;
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
goto end;
}
- if (capacity_mode == MAH_CAPACITY_UNIT) {
+ if (mode == MAH_CAPACITY_UNIT) {
battery_mode &= 0x7fff;
} else {
battery_mode |= 0x8000;
}
result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -541,7 +525,7 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -601,7 +585,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
s16 charger_status;
result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
- (u8 *)&charger_status);
+ (u8 *)&charger_status);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -609,7 +593,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
goto end;
}
- sbs->ac.ac_present = (charger_status & 0x8000) >> 15;
+ sbs->charger_present = (charger_status & 0x8000) >> 15;
end:
@@ -726,30 +710,30 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
}
}
- if (battery->battery_present) {
+ if (battery->present) {
seq_printf(seq, "present: yes\n");
} else {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
seq_printf(seq, "design capacity: %i%s\n",
- battery->info.design_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->design_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "last full capacity: %i%s\n",
- battery->info.full_charge_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->full_charge_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "battery technology: rechargeable\n");
seq_printf(seq, "design voltage: %i mV\n",
- battery->info.design_voltage * battery->info.vscale);
+ battery->design_voltage * battery->vscale);
seq_printf(seq, "design capacity warning: unknown\n");
seq_printf(seq, "design capacity low: unknown\n");
@@ -757,16 +741,16 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
seq_printf(seq, "capacity granularity 2: unknown\n");
seq_printf(seq, "model number: %s\n",
- battery->info.device_name);
+ battery->device_name);
seq_printf(seq, "serial number: %i\n",
- battery->info.serial_number);
+ battery->serial_number);
seq_printf(seq, "battery type: %s\n",
- battery->info.device_chemistry);
+ battery->device_chemistry);
seq_printf(seq, "OEM info: %s\n",
- battery->info.manufacturer_name);
+ battery->manufacturer_name);
end:
@@ -804,49 +788,49 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
}
}
- if (battery->battery_present) {
+ if (battery->present) {
seq_printf(seq, "present: yes\n");
} else {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
- if (battery->state.battery_state & 0x0010) {
+ if (battery->state & 0x0010) {
seq_printf(seq, "capacity state: critical\n");
} else {
seq_printf(seq, "capacity state: ok\n");
}
- foo = (s16) battery->state.amperage * battery->info.ipscale;
- if (battery->info.capacity_mode) {
- foo = foo * battery->info.design_voltage / 1000;
+ foo = (s16) battery->current_now * battery->ipscale;
+ if (battery->mode) {
+ foo = foo * battery->design_voltage / 1000;
}
- if (battery->state.amperage < 0) {
+ if (battery->current_now < 0) {
seq_printf(seq, "charging state: discharging\n");
seq_printf(seq, "present rate: %d %s\n",
- -foo, battery->info.capacity_mode ? "mW" : "mA");
- } else if (battery->state.amperage > 0) {
+ -foo, battery->mode ? "mW" : "mA");
+ } else if (battery->current_now > 0) {
seq_printf(seq, "charging state: charging\n");
seq_printf(seq, "present rate: %d %s\n",
- foo, battery->info.capacity_mode ? "mW" : "mA");
+ foo, battery->mode ? "mW" : "mA");
} else {
seq_printf(seq, "charging state: charged\n");
seq_printf(seq, "present rate: 0 %s\n",
- battery->info.capacity_mode ? "mW" : "mA");
+ battery->mode ? "mW" : "mA");
}
seq_printf(seq, "remaining capacity: %i%s\n",
- battery->state.remaining_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->capacity_now * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "present voltage: %i mV\n",
- battery->state.voltage * battery->info.vscale);
+ battery->voltage_now * battery->vscale);
end:
@@ -883,22 +867,22 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
}
}
- if (!battery->battery_present) {
+ if (!battery->present) {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
seq_printf(seq, "alarm: ");
- if (battery->alarm.remaining_capacity) {
+ if (battery->alarm_capacity) {
seq_printf(seq, "%i%s\n",
- battery->alarm.remaining_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->alarm_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
} else {
seq_printf(seq, "disabled\n");
}
@@ -928,7 +912,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
if (result)
goto end;
- if (!battery->battery_present) {
+ if (!battery->present) {
result = -ENODEV;
goto end;
}
@@ -945,7 +929,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
alarm_string[count] = 0;
- old_alarm = battery->alarm.remaining_capacity;
+ old_alarm = battery->alarm_capacity;
new_alarm = simple_strtoul(alarm_string, NULL, 0);
result = acpi_battery_set_alarm(battery, new_alarm);
@@ -1025,7 +1009,7 @@ static int acpi_ac_read_state(struct seq_file *seq, void *offset)
}
seq_printf(seq, "state: %s\n",
- sbs->ac.ac_present ? "on-line" : "off-line");
+ sbs->charger_present ? "on-line" : "off-line");
sbs_mutex_unlock(sbs);
@@ -1080,7 +1064,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
goto end;
}
- is_present = battery->battery_present;
+ is_present = battery->present;
if (is_present) {
result = acpi_battery_init(battery);
@@ -1094,7 +1078,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_sbs_generic_add_fs(&battery->battery_entry,
+ result = acpi_sbs_generic_add_fs(&battery->proc_entry,
acpi_battery_dir,
dir_name,
&acpi_battery_info_fops,
@@ -1109,7 +1093,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name,
- sbs->battery->battery_present ? "present" : "absent");
+ sbs->battery->present ? "present" : "absent");
end:
return result;
@@ -1118,8 +1102,8 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
- if (sbs->battery[id].battery_entry) {
- acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry),
+ if (sbs->battery[id].proc_entry) {
+ acpi_sbs_generic_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
}
}
@@ -1147,7 +1131,7 @@ static int acpi_ac_add(struct acpi_sbs *sbs)
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
- ACPI_AC_DIR_NAME, sbs->ac.ac_present ? "on-line" : "off-line");
+ ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
end:
@@ -1172,9 +1156,9 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
struct acpi_battery *battery;
int result = 0, cnt;
int old_ac_present = -1;
- int old_battery_present = -1;
+ int old_present = -1;
int new_ac_present = -1;
- int new_battery_present = -1;
+ int new_present = -1;
int id_min = 0, id_max = MAX_SBS_BAT - 1;
char dir_name[32];
int do_battery_init = 0, do_ac_init = 0;
@@ -1199,7 +1183,11 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
sbs->run_cnt++;
- old_ac_present = sbs->ac.ac_present;
+ if (!update_battery) {
+ goto end;
+ }
+
+ old_ac_present = sbs->charger_present;
result = acpi_ac_get_present(sbs);
if (result) {
@@ -1207,7 +1195,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
"acpi_ac_get_present() failed"));
}
- new_ac_present = sbs->ac.ac_present;
+ new_ac_present = sbs->charger_present;
do_ac_init = (old_ac_present != new_ac_present);
if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) {
@@ -1244,9 +1232,9 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
continue;
}
- old_remaining_capacity = battery->state.remaining_capacity;
+ old_remaining_capacity = battery->capacity_now;
- old_battery_present = battery->battery_present;
+ old_present = battery->present;
result = acpi_battery_select(battery);
if (result) {
@@ -1260,11 +1248,11 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
"acpi_battery_get_present() failed"));
}
- new_battery_present = battery->battery_present;
+ new_present = battery->present;
- do_battery_init = ((old_battery_present != new_battery_present)
- && new_battery_present);
- if (!new_battery_present)
+ do_battery_init = ((old_present != new_present)
+ && new_present);
+ if (!new_present)
goto event;
if (do_ac_init || do_battery_init) {
result = acpi_battery_init(battery);
@@ -1280,7 +1268,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_INFO)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_info(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1296,7 +1284,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_STATE)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_state(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1312,7 +1300,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_ALARM)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_alarm(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1329,17 +1317,17 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
event:
- if (old_battery_present != new_battery_present || do_ac_init ||
+ if (old_present != new_present || do_ac_init ||
old_remaining_capacity !=
- battery->state.remaining_capacity) {
+ battery->capacity_now) {
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
dir_name,
ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present);
+ new_present);
acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present);
+ new_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_bus_generate_proc_event4() "
@@ -1426,7 +1414,7 @@ static int acpi_sbs_add(struct acpi_device *device)
acpi_sbsm_get_info(sbs);
- if (!sbs->sbsm_present) {
+ if (!sbs->manager_present) {
result = acpi_battery_add(sbs, 0);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1435,7 +1423,7 @@ static int acpi_sbs_add(struct acpi_device *device)
}
} else {
for (id = 0; id < MAX_SBS_BAT; id++) {
- if ((sbs->sbsm_batteries_supported & (1 << id))) {
+ if ((sbs->batteries_supported & (1 << id))) {
result = acpi_battery_add(sbs, id);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1535,11 +1523,11 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
- if (capacity_mode != DEF_CAPACITY_UNIT
- && capacity_mode != MAH_CAPACITY_UNIT
- && capacity_mode != MWH_CAPACITY_UNIT) {
+ if (mode != DEF_CAPACITY_UNIT
+ && mode != MAH_CAPACITY_UNIT
+ && mode != MWH_CAPACITY_UNIT) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "invalid capacity_mode = %d", capacity_mode));
+ "invalid mode = %d", mode));
return -EINVAL;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 11/32] ACPI: SBS: Simplify data structures in SBS
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 282 +++++++++++++++++++++++++---------------------------
1 files changed, 135 insertions(+), 147 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 7bb8c62..f35fe63 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -88,10 +88,10 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
/* 0 - every time, > 0 - by update_time */
static unsigned int update_time = 120;
-static unsigned int capacity_mode = CAPACITY_UNIT;
+static unsigned int mode = CAPACITY_UNIT;
module_param(update_time, uint, 0644);
-module_param(capacity_mode, uint, 0444);
+module_param(mode, uint, 0444);
static int acpi_sbs_add(struct acpi_device *device);
static int acpi_sbs_remove(struct acpi_device *device, int type);
@@ -114,59 +114,43 @@ static struct acpi_driver acpi_sbs_driver = {
},
};
-struct acpi_ac {
- int ac_present;
-};
-
-struct acpi_battery_info {
- int capacity_mode;
- s16 full_charge_capacity;
- s16 design_capacity;
- s16 design_voltage;
- int vscale;
- int ipscale;
- s16 serial_number;
- char manufacturer_name[ACPI_SBS_BLOCK_MAX + 3];
- char device_name[ACPI_SBS_BLOCK_MAX + 3];
- char device_chemistry[ACPI_SBS_BLOCK_MAX + 3];
-};
-
-struct acpi_battery_state {
- s16 voltage;
- s16 amperage;
- s16 remaining_capacity;
- s16 battery_state;
-};
-
-struct acpi_battery_alarm {
- s16 remaining_capacity;
-};
-
struct acpi_battery {
- int alive;
- int id;
- int init_state;
- int battery_present;
struct acpi_sbs *sbs;
- struct acpi_battery_info info;
- struct acpi_battery_state state;
- struct acpi_battery_alarm alarm;
- struct proc_dir_entry *battery_entry;
+ struct proc_dir_entry *proc_entry;
+ int vscale;
+ int ipscale;
+ char manufacturer_name[ACPI_SBS_BLOCK_MAX];
+ char device_name[ACPI_SBS_BLOCK_MAX];
+ char device_chemistry[ACPI_SBS_BLOCK_MAX];
+ u16 full_charge_capacity;
+ u16 design_capacity;
+ u16 design_voltage;
+ u16 serial_number;
+ u16 voltage_now;
+ s16 current_now;
+ u16 capacity_now;
+ u16 state;
+ u16 alarm_capacity;
+ u16 mode;
+ u8 id;
+ u8 alive:1;
+ u8 init_state:1;
+ u8 present:1;
};
struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex mutex;
- int sbsm_present;
- int sbsm_batteries_supported;
struct proc_dir_entry *ac_entry;
- struct acpi_ac ac;
struct acpi_battery battery[MAX_SBS_BAT];
int zombie;
struct timer_list update_timer;
int run_cnt;
int update_proc_flg;
+ u8 batteries_supported;
+ u8 manager_present:1;
+ u8 charger_present:1;
};
static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
@@ -231,7 +215,7 @@ static int acpi_battery_get_present(struct acpi_battery *battery)
if (!result) {
is_present = (state & 0x000f) & (1 << battery->id);
}
- battery->battery_present = is_present;
+ battery->present = is_present;
return result;
}
@@ -243,14 +227,14 @@ static int acpi_battery_select(struct acpi_battery *battery)
s16 state;
int foo;
- if (sbs->sbsm_present) {
+ if (sbs->manager_present) {
/* Take special care not to knobble other nibbles of
* state (aka selector_state), since
* it causes charging to halt on SBSELs */
- result =
- acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -258,8 +242,8 @@ static int acpi_battery_select(struct acpi_battery *battery)
}
foo = (state & 0x0fff) | (1 << (battery->id + 12));
- result =
- acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD, ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -283,8 +267,7 @@ static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
"acpi_smbus_read() failed"));
goto end;
}
- sbs->sbsm_present = 1;
- sbs->sbsm_batteries_supported = battery_system_info & 0x000f;
+ sbs->manager_present = 1;
end:
@@ -304,10 +287,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
"acpi_smbus_read() failed"));
goto end;
}
- battery->info.capacity_mode = (battery_mode & 0x8000) >> 15;
+ battery->mode = (battery_mode & 0x8000) >> 15;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
- (u8 *)&battery->info.full_charge_capacity);
+ (u8 *)&battery->full_charge_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -315,7 +298,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
- (u8 *)&battery->info.design_capacity);
+ (u8 *)&battery->design_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -324,7 +307,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
- (u8 *)&battery->info.design_voltage);
+ (u8 *)&battery->design_voltage);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -341,34 +324,34 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
switch ((specification_info & 0x0f00) >> 8) {
case 1:
- battery->info.vscale = 10;
+ battery->vscale = 10;
break;
case 2:
- battery->info.vscale = 100;
+ battery->vscale = 100;
break;
case 3:
- battery->info.vscale = 1000;
+ battery->vscale = 1000;
break;
default:
- battery->info.vscale = 1;
+ battery->vscale = 1;
}
switch ((specification_info & 0xf000) >> 12) {
case 1:
- battery->info.ipscale = 10;
+ battery->ipscale = 10;
break;
case 2:
- battery->info.ipscale = 100;
+ battery->ipscale = 100;
break;
case 3:
- battery->info.ipscale = 1000;
+ battery->ipscale = 1000;
break;
default:
- battery->info.ipscale = 1;
+ battery->ipscale = 1;
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
- (u8 *)&battery->info.serial_number);
+ (u8 *)&battery->serial_number);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -376,7 +359,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
- (u8 *)battery->info.manufacturer_name);
+ (u8 *)battery->manufacturer_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -384,7 +367,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
- (u8 *)battery->info.device_name);
+ (u8 *)battery->device_name);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -392,7 +375,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
- (u8 *)battery->info.device_chemistry);
+ (u8 *)battery->device_chemistry);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_sbs_read_str() failed"));
@@ -408,7 +391,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
int result = 0;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
- (u8 *)&battery->state.voltage);
+ (u8 *)&battery->voltage_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -416,7 +399,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
- (u8 *)&battery->state.amperage);
+ (u8 *)&battery->current_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -424,7 +407,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
- (u8 *)&battery->state.remaining_capacity);
+ (u8 *)&battery->capacity_now);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -432,7 +415,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
- (u8 *)&battery->state.battery_state);
+ (u8 *)&battery->state);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -448,7 +431,7 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
int result = 0;
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery->alarm.remaining_capacity);
+ (u8 *)&battery->alarm_capacity);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -497,8 +480,9 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery,
}
}
- foo = alarm / (battery->info.capacity_mode ? 10 : 1);
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
+ foo = alarm / (battery->mode ? 10 : 1);
+ result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
+ (u8 *)&foo, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -515,25 +499,25 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
int result = 0;
s16 battery_mode;
- if (capacity_mode == DEF_CAPACITY_UNIT) {
+ if (mode == DEF_CAPACITY_UNIT) {
goto end;
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
goto end;
}
- if (capacity_mode == MAH_CAPACITY_UNIT) {
+ if (mode == MAH_CAPACITY_UNIT) {
battery_mode &= 0x7fff;
} else {
battery_mode |= 0x8000;
}
result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_write() failed"));
@@ -541,7 +525,7 @@ static int acpi_battery_set_mode(struct acpi_battery *battery)
}
result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
+ ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_smbus_read() failed"));
@@ -601,7 +585,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
s16 charger_status;
result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
- (u8 *)&charger_status);
+ (u8 *)&charger_status);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -609,7 +593,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
goto end;
}
- sbs->ac.ac_present = (charger_status & 0x8000) >> 15;
+ sbs->charger_present = (charger_status & 0x8000) >> 15;
end:
@@ -726,30 +710,30 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
}
}
- if (battery->battery_present) {
+ if (battery->present) {
seq_printf(seq, "present: yes\n");
} else {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
seq_printf(seq, "design capacity: %i%s\n",
- battery->info.design_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->design_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "last full capacity: %i%s\n",
- battery->info.full_charge_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->full_charge_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "battery technology: rechargeable\n");
seq_printf(seq, "design voltage: %i mV\n",
- battery->info.design_voltage * battery->info.vscale);
+ battery->design_voltage * battery->vscale);
seq_printf(seq, "design capacity warning: unknown\n");
seq_printf(seq, "design capacity low: unknown\n");
@@ -757,16 +741,16 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
seq_printf(seq, "capacity granularity 2: unknown\n");
seq_printf(seq, "model number: %s\n",
- battery->info.device_name);
+ battery->device_name);
seq_printf(seq, "serial number: %i\n",
- battery->info.serial_number);
+ battery->serial_number);
seq_printf(seq, "battery type: %s\n",
- battery->info.device_chemistry);
+ battery->device_chemistry);
seq_printf(seq, "OEM info: %s\n",
- battery->info.manufacturer_name);
+ battery->manufacturer_name);
end:
@@ -804,49 +788,49 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
}
}
- if (battery->battery_present) {
+ if (battery->present) {
seq_printf(seq, "present: yes\n");
} else {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
- if (battery->state.battery_state & 0x0010) {
+ if (battery->state & 0x0010) {
seq_printf(seq, "capacity state: critical\n");
} else {
seq_printf(seq, "capacity state: ok\n");
}
- foo = (s16) battery->state.amperage * battery->info.ipscale;
- if (battery->info.capacity_mode) {
- foo = foo * battery->info.design_voltage / 1000;
+ foo = (s16) battery->current_now * battery->ipscale;
+ if (battery->mode) {
+ foo = foo * battery->design_voltage / 1000;
}
- if (battery->state.amperage < 0) {
+ if (battery->current_now < 0) {
seq_printf(seq, "charging state: discharging\n");
seq_printf(seq, "present rate: %d %s\n",
- -foo, battery->info.capacity_mode ? "mW" : "mA");
- } else if (battery->state.amperage > 0) {
+ -foo, battery->mode ? "mW" : "mA");
+ } else if (battery->current_now > 0) {
seq_printf(seq, "charging state: charging\n");
seq_printf(seq, "present rate: %d %s\n",
- foo, battery->info.capacity_mode ? "mW" : "mA");
+ foo, battery->mode ? "mW" : "mA");
} else {
seq_printf(seq, "charging state: charged\n");
seq_printf(seq, "present rate: 0 %s\n",
- battery->info.capacity_mode ? "mW" : "mA");
+ battery->mode ? "mW" : "mA");
}
seq_printf(seq, "remaining capacity: %i%s\n",
- battery->state.remaining_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->capacity_now * cscale,
+ battery->mode ? "0 mWh" : " mAh");
seq_printf(seq, "present voltage: %i mV\n",
- battery->state.voltage * battery->info.vscale);
+ battery->voltage_now * battery->vscale);
end:
@@ -883,22 +867,22 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
}
}
- if (!battery->battery_present) {
+ if (!battery->present) {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->info.capacity_mode) {
- cscale = battery->info.vscale * battery->info.ipscale;
+ if (battery->mode) {
+ cscale = battery->vscale * battery->ipscale;
} else {
- cscale = battery->info.ipscale;
+ cscale = battery->ipscale;
}
seq_printf(seq, "alarm: ");
- if (battery->alarm.remaining_capacity) {
+ if (battery->alarm_capacity) {
seq_printf(seq, "%i%s\n",
- battery->alarm.remaining_capacity * cscale,
- battery->info.capacity_mode ? "0 mWh" : " mAh");
+ battery->alarm_capacity * cscale,
+ battery->mode ? "0 mWh" : " mAh");
} else {
seq_printf(seq, "disabled\n");
}
@@ -928,7 +912,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
if (result)
goto end;
- if (!battery->battery_present) {
+ if (!battery->present) {
result = -ENODEV;
goto end;
}
@@ -945,7 +929,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
alarm_string[count] = 0;
- old_alarm = battery->alarm.remaining_capacity;
+ old_alarm = battery->alarm_capacity;
new_alarm = simple_strtoul(alarm_string, NULL, 0);
result = acpi_battery_set_alarm(battery, new_alarm);
@@ -1025,7 +1009,7 @@ static int acpi_ac_read_state(struct seq_file *seq, void *offset)
}
seq_printf(seq, "state: %s\n",
- sbs->ac.ac_present ? "on-line" : "off-line");
+ sbs->charger_present ? "on-line" : "off-line");
sbs_mutex_unlock(sbs);
@@ -1080,7 +1064,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
goto end;
}
- is_present = battery->battery_present;
+ is_present = battery->present;
if (is_present) {
result = acpi_battery_init(battery);
@@ -1094,7 +1078,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_sbs_generic_add_fs(&battery->battery_entry,
+ result = acpi_sbs_generic_add_fs(&battery->proc_entry,
acpi_battery_dir,
dir_name,
&acpi_battery_info_fops,
@@ -1109,7 +1093,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name,
- sbs->battery->battery_present ? "present" : "absent");
+ sbs->battery->present ? "present" : "absent");
end:
return result;
@@ -1118,8 +1102,8 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
- if (sbs->battery[id].battery_entry) {
- acpi_sbs_generic_remove_fs(&(sbs->battery[id].battery_entry),
+ if (sbs->battery[id].proc_entry) {
+ acpi_sbs_generic_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
}
}
@@ -1147,7 +1131,7 @@ static int acpi_ac_add(struct acpi_sbs *sbs)
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
- ACPI_AC_DIR_NAME, sbs->ac.ac_present ? "on-line" : "off-line");
+ ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
end:
@@ -1172,9 +1156,9 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
struct acpi_battery *battery;
int result = 0, cnt;
int old_ac_present = -1;
- int old_battery_present = -1;
+ int old_present = -1;
int new_ac_present = -1;
- int new_battery_present = -1;
+ int new_present = -1;
int id_min = 0, id_max = MAX_SBS_BAT - 1;
char dir_name[32];
int do_battery_init = 0, do_ac_init = 0;
@@ -1199,7 +1183,11 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
sbs->run_cnt++;
- old_ac_present = sbs->ac.ac_present;
+ if (!update_battery) {
+ goto end;
+ }
+
+ old_ac_present = sbs->charger_present;
result = acpi_ac_get_present(sbs);
if (result) {
@@ -1207,7 +1195,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
"acpi_ac_get_present() failed"));
}
- new_ac_present = sbs->ac.ac_present;
+ new_ac_present = sbs->charger_present;
do_ac_init = (old_ac_present != new_ac_present);
if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) {
@@ -1244,9 +1232,9 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
continue;
}
- old_remaining_capacity = battery->state.remaining_capacity;
+ old_remaining_capacity = battery->capacity_now;
- old_battery_present = battery->battery_present;
+ old_present = battery->present;
result = acpi_battery_select(battery);
if (result) {
@@ -1260,11 +1248,11 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
"acpi_battery_get_present() failed"));
}
- new_battery_present = battery->battery_present;
+ new_present = battery->present;
- do_battery_init = ((old_battery_present != new_battery_present)
- && new_battery_present);
- if (!new_battery_present)
+ do_battery_init = ((old_present != new_present)
+ && new_present);
+ if (!new_present)
goto event;
if (do_ac_init || do_battery_init) {
result = acpi_battery_init(battery);
@@ -1280,7 +1268,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_INFO)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_info(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1296,7 +1284,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_STATE)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_state(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1312,7 +1300,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
if ((data_type == DATA_TYPE_COMMON
|| data_type == DATA_TYPE_ALARM)
- && new_battery_present) {
+ && new_present) {
result = acpi_battery_get_alarm(battery);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1329,17 +1317,17 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
event:
- if (old_battery_present != new_battery_present || do_ac_init ||
+ if (old_present != new_present || do_ac_init ||
old_remaining_capacity !=
- battery->state.remaining_capacity) {
+ battery->capacity_now) {
sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
dir_name,
ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present);
+ new_present);
acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_battery_present);
+ new_present);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
"acpi_bus_generate_proc_event4() "
@@ -1426,7 +1414,7 @@ static int acpi_sbs_add(struct acpi_device *device)
acpi_sbsm_get_info(sbs);
- if (!sbs->sbsm_present) {
+ if (!sbs->manager_present) {
result = acpi_battery_add(sbs, 0);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1435,7 +1423,7 @@ static int acpi_sbs_add(struct acpi_device *device)
}
} else {
for (id = 0; id < MAX_SBS_BAT; id++) {
- if ((sbs->sbsm_batteries_supported & (1 << id))) {
+ if ((sbs->batteries_supported & (1 << id))) {
result = acpi_battery_add(sbs, id);
if (result) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
@@ -1535,11 +1523,11 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
- if (capacity_mode != DEF_CAPACITY_UNIT
- && capacity_mode != MAH_CAPACITY_UNIT
- && capacity_mode != MWH_CAPACITY_UNIT) {
+ if (mode != DEF_CAPACITY_UNIT
+ && mode != MAH_CAPACITY_UNIT
+ && mode != MWH_CAPACITY_UNIT) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "invalid capacity_mode = %d", capacity_mode));
+ "invalid mode = %d", mode));
return -EINVAL;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 12/32] ACPI: SBS: Make SBS reads table-driven.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Re-factor SBS functions to use tables and cycles for repeated operations.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 1292 +++++++++++-----------------------------------------
1 files changed, 275 insertions(+), 1017 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index f35fe63..3351dea 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -1,6 +1,8 @@
/*
- * acpi_sbs.c - ACPI Smart Battery System Driver ($Revision: 1.16 $)
+ * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $)
*
+ * Copyright (c) 2007 Alexey Starikovskiy <astarikovskiy@suse.de>
+ * Copyright (c) 2005-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
* Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -46,53 +48,34 @@
#define ACPI_SBS_FILE_ALARM "alarm"
#define ACPI_BATTERY_DIR_NAME "BAT%i"
#define ACPI_AC_DIR_NAME "AC0"
-#define ACPI_SBC_SMBUS_ADDR 0x9
-#define ACPI_SBSM_SMBUS_ADDR 0xa
-#define ACPI_SB_SMBUS_ADDR 0xb
-#define ACPI_SBS_AC_NOTIFY_STATUS 0x80
-#define ACPI_SBS_BATTERY_NOTIFY_STATUS 0x80
-#define ACPI_SBS_BATTERY_NOTIFY_INFO 0x81
-#define _COMPONENT ACPI_SBS_COMPONENT
+enum acpi_sbs_device_addr {
+ ACPI_SBS_CHARGER = 0x9,
+ ACPI_SBS_MANAGER = 0xa,
+ ACPI_SBS_BATTERY = 0xb,
+};
+
+#define ACPI_SBS_NOTIFY_STATUS 0x80
+#define ACPI_SBS_NOTIFY_INFO 0x81
ACPI_MODULE_NAME("sbs");
-MODULE_AUTHOR("Rich Townsend");
+MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
-#define DEF_CAPACITY_UNIT 3
-#define MAH_CAPACITY_UNIT 1
-#define MWH_CAPACITY_UNIT 2
-#define CAPACITY_UNIT DEF_CAPACITY_UNIT
-
-#define REQUEST_UPDATE_MODE 1
-#define QUEUE_UPDATE_MODE 2
-
-#define DATA_TYPE_COMMON 0
-#define DATA_TYPE_INFO 1
-#define DATA_TYPE_STATE 2
-#define DATA_TYPE_ALARM 3
-#define DATA_TYPE_AC_STATE 4
+static unsigned int cache_time = 1000;
+module_param(cache_time, uint, 0644);
+MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_ac_dir(void);
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-#define MAX_SBS_BAT 4
+#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-#define UPDATE_DELAY 10
-
-/* 0 - every time, > 0 - by update_time */
-static unsigned int update_time = 120;
-
-static unsigned int mode = CAPACITY_UNIT;
-
-module_param(update_time, uint, 0644);
-module_param(mode, uint, 0444);
-
static int acpi_sbs_add(struct acpi_device *device);
static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_resume(struct acpi_device *device);
@@ -117,486 +100,187 @@ static struct acpi_driver acpi_sbs_driver = {
struct acpi_battery {
struct acpi_sbs *sbs;
struct proc_dir_entry *proc_entry;
- int vscale;
- int ipscale;
+ unsigned long update_time;
+ char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
char device_name[ACPI_SBS_BLOCK_MAX];
char device_chemistry[ACPI_SBS_BLOCK_MAX];
+ u32 alarm_capacity;
u16 full_charge_capacity;
u16 design_capacity;
u16 design_voltage;
u16 serial_number;
+ u16 cycle_count;
+ u16 temp_now;
u16 voltage_now;
s16 current_now;
+ s16 current_avg;
u16 capacity_now;
+ u16 state_of_charge;
u16 state;
- u16 alarm_capacity;
u16 mode;
+ u16 spec;
u8 id;
- u8 alive:1;
- u8 init_state:1;
u8 present:1;
};
struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
- struct mutex mutex;
- struct proc_dir_entry *ac_entry;
+ struct mutex lock;
+ struct proc_dir_entry *charger_entry;
struct acpi_battery battery[MAX_SBS_BAT];
- int zombie;
- struct timer_list update_timer;
- int run_cnt;
- int update_proc_flg;
- u8 batteries_supported;
+ u8 batteries_supported:4;
u8 manager_present:1;
u8 charger_present:1;
};
-static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
-static void acpi_sbs_update_time(void *data);
-
-static int sbs_zombie(struct acpi_sbs *sbs)
+static inline int battery_scale(int log)
{
- return (sbs->zombie);
+ int scale = 1;
+ while (log--)
+ scale *= 10;
+ return scale;
}
-static int sbs_mutex_lock(struct acpi_sbs *sbs)
+static inline int acpi_battery_vscale(struct acpi_battery *battery)
{
- if (sbs_zombie(sbs)) {
- return -ENODEV;
- }
- mutex_lock(&sbs->mutex);
- return 0;
+ return battery_scale((battery->spec & 0x0f00) >> 8);
}
-static void sbs_mutex_unlock(struct acpi_sbs *sbs)
+static inline int acpi_battery_ipscale(struct acpi_battery *battery)
{
- mutex_unlock(&sbs->mutex);
+ return battery_scale((battery->spec & 0xf000) >> 12);
}
-/* --------------------------------------------------------------------------
- Smart Battery System Management
- -------------------------------------------------------------------------- */
-
-static int acpi_check_update_proc(struct acpi_sbs *sbs)
+static inline int acpi_battery_mode(struct acpi_battery *battery)
{
- acpi_status status = AE_OK;
-
- if (update_time == 0) {
- sbs->update_proc_flg = 0;
- return 0;
- }
- if (sbs->update_proc_flg == 0) {
- status = acpi_os_execute(OSL_GPE_HANDLER,
- acpi_sbs_update_time, sbs);
- if (status != AE_OK) {
- ACPI_EXCEPTION((AE_INFO, status,
- "acpi_os_execute() failed"));
- return 1;
- }
- sbs->update_proc_flg = 1;
- }
- return 0;
+ return (battery->mode & 0x8000);
}
-static int acpi_battery_get_present(struct acpi_battery *battery)
+static inline int acpi_battery_scale(struct acpi_battery *battery)
{
- s16 state;
- int result = 0;
- int is_present = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- }
- if (!result) {
- is_present = (state & 0x000f) & (1 << battery->id);
- }
- battery->present = is_present;
-
- return result;
+ return (acpi_battery_mode(battery) ? 10 : 1) *
+ acpi_battery_ipscale(battery);
}
-static int acpi_battery_select(struct acpi_battery *battery)
-{
- struct acpi_sbs *sbs = battery->sbs;
- int result = 0;
- s16 state;
- int foo;
-
- if (sbs->manager_present) {
-
- /* Take special care not to knobble other nibbles of
- * state (aka selector_state), since
- * it causes charging to halt on SBSELs */
+/* --------------------------------------------------------------------------
+ Smart Battery System Management
+ -------------------------------------------------------------------------- */
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
+struct acpi_battery_reader {
+ u8 command; /* command for battery */
+ u8 mode; /* word or block? */
+ size_t offset; /* offset inside struct acpi_sbs_battery */
+};
- foo = (state & 0x0fff) | (1 << (battery->id + 12));
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
- }
+static struct acpi_battery_reader info_readers[] = {
+ {0x01, SMBUS_READ_WORD, offsetof(struct acpi_battery, alarm_capacity)},
+ {0x03, SMBUS_READ_WORD, offsetof(struct acpi_battery, mode)},
+ {0x10, SMBUS_READ_WORD, offsetof(struct acpi_battery, full_charge_capacity)},
+ {0x17, SMBUS_READ_WORD, offsetof(struct acpi_battery, cycle_count)},
+ {0x18, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_capacity)},
+ {0x19, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_voltage)},
+ {0x1a, SMBUS_READ_WORD, offsetof(struct acpi_battery, spec)},
+ {0x1c, SMBUS_READ_WORD, offsetof(struct acpi_battery, serial_number)},
+ {0x20, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, manufacturer_name)},
+ {0x21, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_name)},
+ {0x22, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_chemistry)},
+};
- end:
- return result;
-}
+static struct acpi_battery_reader state_readers[] = {
+ {0x08, SMBUS_READ_WORD, offsetof(struct acpi_battery, temp_now)},
+ {0x09, SMBUS_READ_WORD, offsetof(struct acpi_battery, voltage_now)},
+ {0x0a, SMBUS_READ_WORD, offsetof(struct acpi_battery, current_now)},
+ {0x0b, SMBUS_READ_WORD, offsetof(struct acpi_battery, current_avg)},
+ {0x0f, SMBUS_READ_WORD, offsetof(struct acpi_battery, capacity_now)},
+ {0x0e, SMBUS_READ_WORD, offsetof(struct acpi_battery, state_of_charge)},
+ {0x16, SMBUS_READ_WORD, offsetof(struct acpi_battery, state)},
+};
-static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
+static int acpi_manager_get_info(struct acpi_sbs *sbs)
{
int result = 0;
- s16 battery_system_info;
-
- result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x04,
- (u8 *)&battery_system_info);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
- sbs->manager_present = 1;
-
- end:
+ u16 battery_system_info;
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ 0x04, (u8 *) & battery_system_info);
+ if (!result)
+ sbs->batteries_supported = battery_system_info & 0x000f;
return result;
}
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- int result = 0;
- s16 battery_mode;
- s16 specification_info;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
- (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
- battery->mode = (battery_mode & 0x8000) >> 15;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
- (u8 *)&battery->full_charge_capacity);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
- (u8 *)&battery->design_capacity);
+ int i, result = 0;
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
- (u8 *)&battery->design_voltage);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
+ for (i = 0; i < ARRAY_SIZE(info_readers); ++i) {
+ result = acpi_smbus_read(battery->sbs->hc, info_readers[i].mode,
+ ACPI_SBS_BATTERY, info_readers[i].command,
+ (u8 *) battery + info_readers[i].offset);
+ if (result)
+ break;
}
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1a,
- (u8 *)&specification_info);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- switch ((specification_info & 0x0f00) >> 8) {
- case 1:
- battery->vscale = 10;
- break;
- case 2:
- battery->vscale = 100;
- break;
- case 3:
- battery->vscale = 1000;
- break;
- default:
- battery->vscale = 1;
- }
-
- switch ((specification_info & 0xf000) >> 12) {
- case 1:
- battery->ipscale = 10;
- break;
- case 2:
- battery->ipscale = 100;
- break;
- case 3:
- battery->ipscale = 1000;
- break;
- default:
- battery->ipscale = 1;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
- (u8 *)&battery->serial_number);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
- (u8 *)battery->manufacturer_name);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
- (u8 *)battery->device_name);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
- (u8 *)battery->device_chemistry);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- end:
return result;
}
static int acpi_battery_get_state(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
- (u8 *)&battery->voltage_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
- (u8 *)&battery->current_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
- (u8 *)&battery->capacity_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
- (u8 *)&battery->state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
- return result;
-}
-
-static int acpi_battery_get_alarm(struct acpi_battery *battery)
-{
- int result = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery->alarm_capacity);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
-
- return result;
-}
-
-static int acpi_battery_set_alarm(struct acpi_battery *battery,
- unsigned long alarm)
-{
- int result = 0;
- s16 battery_mode;
- int foo;
+ int i, result = 0;
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- /* If necessary, enable the alarm */
-
- if (alarm > 0) {
- result =
- acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
- (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- battery_mode &= 0xbfff;
- result =
- acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery_mode, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
+ if (time_before(jiffies, battery->update_time +
+ msecs_to_jiffies(cache_time)))
+ return 0;
+ for (i = 0; i < ARRAY_SIZE(state_readers); ++i) {
+ result = acpi_smbus_read(battery->sbs->hc,
+ state_readers[i].mode,
+ ACPI_SBS_BATTERY,
+ state_readers[i].command,
+ (u8 *)battery +
+ state_readers[i].offset);
+ if (result)
goto end;
- }
}
-
- foo = alarm / (battery->mode ? 10 : 1);
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&foo, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
-
end:
-
+ battery->update_time = jiffies;
return result;
}
-static int acpi_battery_set_mode(struct acpi_battery *battery)
+static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- int result = 0;
- s16 battery_mode;
-
- if (mode == DEF_CAPACITY_UNIT) {
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- if (mode == MAH_CAPACITY_UNIT) {
- battery_mode &= 0x7fff;
- } else {
- battery_mode |= 0x8000;
- }
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
- return result;
+ return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBS_BATTERY, 0x01,
+ (u8 *) & battery->alarm_capacity);
}
-static int acpi_battery_init(struct acpi_battery *battery)
+static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- result = acpi_battery_set_mode(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_set_mode() failed"));
- goto end;
- }
-
- result = acpi_battery_get_info(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_info() failed"));
- goto end;
- }
-
- result = acpi_battery_get_state(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_state() failed"));
- goto end;
- }
+ struct acpi_sbs *sbs = battery->sbs;
+ u16 value;
+ return 0;
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() failed"));
- goto end;
+ if (sbs->manager_present) {
+ acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value);
+ value &= 0x0fff;
+ value |= 1 << (battery->id + 12);
+ acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value, 2);
}
-
- end:
- return result;
+ value = battery->alarm_capacity / (acpi_battery_mode(battery) ? 10 : 1);
+ return acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
+ 0x01, (u8 *)&value, 2);
}
static int acpi_ac_get_present(struct acpi_sbs *sbs)
{
- int result = 0;
- s16 charger_status;
-
- result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
- (u8 *)&charger_status);
-
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- sbs->charger_present = (charger_status & 0x8000) >> 15;
-
- end:
+ int result;
+ u16 status;
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_CHARGER,
+ 0x13, (u8 *) & status);
+ if (!result)
+ sbs->charger_present = (status >> 15) & 0x1;
return result;
}
@@ -607,7 +291,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
/* Generic Routines */
static int
-acpi_sbs_generic_add_fs(struct proc_dir_entry **dir,
+acpi_sbs_add_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir,
char *dir_name,
struct file_operations *info_fops,
@@ -669,7 +353,7 @@ acpi_sbs_generic_add_fs(struct proc_dir_entry **dir,
}
static void
-acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir,
+acpi_sbs_remove_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir)
{
@@ -687,75 +371,47 @@ acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir,
static struct proc_dir_entry *acpi_battery_dir = NULL;
+static inline char *acpi_battery_units(struct acpi_battery *battery)
+{
+ return acpi_battery_mode(battery) ? " mWh" : " mAh";
+}
+
+
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
- int cscale;
int result = 0;
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
+ mutex_lock(&sbs->lock);
- result = acpi_check_update_proc(sbs);
- if (result)
+ seq_printf(seq, "present: %s\n",
+ (battery->present) ? "yes" : "no");
+ if (!battery->present)
goto end;
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_INFO);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
-
- if (battery->present) {
- seq_printf(seq, "present: yes\n");
- } else {
- seq_printf(seq, "present: no\n");
- goto end;
- }
-
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
seq_printf(seq, "design capacity: %i%s\n",
- battery->design_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->design_capacity * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "last full capacity: %i%s\n",
- battery->full_charge_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->full_charge_capacity * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "battery technology: rechargeable\n");
-
seq_printf(seq, "design voltage: %i mV\n",
- battery->design_voltage * battery->vscale);
-
+ battery->design_voltage * acpi_battery_vscale(battery));
seq_printf(seq, "design capacity warning: unknown\n");
seq_printf(seq, "design capacity low: unknown\n");
seq_printf(seq, "capacity granularity 1: unknown\n");
seq_printf(seq, "capacity granularity 2: unknown\n");
-
- seq_printf(seq, "model number: %s\n",
- battery->device_name);
-
+ seq_printf(seq, "model number: %s\n", battery->device_name);
seq_printf(seq, "serial number: %i\n",
battery->serial_number);
-
seq_printf(seq, "battery type: %s\n",
battery->device_chemistry);
-
seq_printf(seq, "OEM info: %s\n",
battery->manufacturer_name);
-
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -769,73 +425,29 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- int cscale;
- int foo;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
-
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_STATE);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
- if (battery->present) {
- seq_printf(seq, "present: yes\n");
- } else {
- seq_printf(seq, "present: no\n");
+ mutex_lock(&sbs->lock);
+ seq_printf(seq, "present: %s\n",
+ (battery->present) ? "yes" : "no");
+ if (!battery->present)
goto end;
- }
-
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
-
- if (battery->state & 0x0010) {
- seq_printf(seq, "capacity state: critical\n");
- } else {
- seq_printf(seq, "capacity state: ok\n");
- }
-
- foo = (s16) battery->current_now * battery->ipscale;
- if (battery->mode) {
- foo = foo * battery->design_voltage / 1000;
- }
- if (battery->current_now < 0) {
- seq_printf(seq, "charging state: discharging\n");
- seq_printf(seq, "present rate: %d %s\n",
- -foo, battery->mode ? "mW" : "mA");
- } else if (battery->current_now > 0) {
- seq_printf(seq, "charging state: charging\n");
- seq_printf(seq, "present rate: %d %s\n",
- foo, battery->mode ? "mW" : "mA");
- } else {
- seq_printf(seq, "charging state: charged\n");
- seq_printf(seq, "present rate: 0 %s\n",
- battery->mode ? "mW" : "mA");
- }
+ acpi_battery_get_state(battery);
+ seq_printf(seq, "capacity state: %s\n",
+ (battery->state & 0x0010) ? "critical" : "ok");
+ seq_printf(seq, "charging state: %s\n",
+ (battery->current_now < 0) ? "discharging" :
+ ((battery->current_now > 0) ? "charging" : "charged"));
+ seq_printf(seq, "present rate: %d mA\n",
+ abs(battery->current_now) * acpi_battery_ipscale(battery));
seq_printf(seq, "remaining capacity: %i%s\n",
- battery->capacity_now * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->capacity_now * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "present voltage: %i mV\n",
- battery->voltage_now * battery->vscale);
+ battery->voltage_now * acpi_battery_vscale(battery));
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -849,48 +461,25 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- int cscale;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_ALARM);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
+ mutex_lock(&sbs->lock);
if (!battery->present) {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
-
+ acpi_battery_get_alarm(battery);
seq_printf(seq, "alarm: ");
- if (battery->alarm_capacity) {
+ if (battery->alarm_capacity)
seq_printf(seq, "%i%s\n",
- battery->alarm_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
- } else {
+ battery->alarm_capacity *
+ acpi_battery_scale(battery),
+ acpi_battery_units(battery));
+ else
seq_printf(seq, "disabled\n");
- }
-
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -902,59 +491,28 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
char alarm_string[12] = { '\0' };
- int result, old_alarm, new_alarm;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
-
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
+ int result = 0;
+ mutex_lock(&sbs->lock);
if (!battery->present) {
result = -ENODEV;
goto end;
}
-
if (count > sizeof(alarm_string) - 1) {
result = -EINVAL;
goto end;
}
-
if (copy_from_user(alarm_string, buffer, count)) {
result = -EFAULT;
goto end;
}
-
alarm_string[count] = 0;
-
- old_alarm = battery->alarm_capacity;
- new_alarm = simple_strtoul(alarm_string, NULL, 0);
-
- result = acpi_battery_set_alarm(battery, new_alarm);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_set_alarm() failed"));
- acpi_battery_set_alarm(battery, old_alarm);
- goto end;
- }
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() failed"));
- acpi_battery_set_alarm(battery, old_alarm);
- goto end;
- }
-
+ battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0);
+ acpi_battery_set_alarm(battery);
end:
- sbs_mutex_unlock(sbs);
-
- if (result) {
+ mutex_unlock(&sbs->lock);
+ if (result)
return result;
- } else {
- return count;
- }
+ return count;
}
static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
@@ -993,26 +551,15 @@ static struct proc_dir_entry *acpi_ac_dir = NULL;
static int acpi_ac_read_state(struct seq_file *seq, void *offset)
{
- struct acpi_sbs *sbs = seq->private;
- int result;
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
+ struct acpi_sbs *sbs = seq->private;
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_AC_STATE);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
+ mutex_lock(&sbs->lock);
seq_printf(seq, "state: %s\n",
sbs->charger_present ? "on-line" : "off-line");
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return 0;
}
@@ -1035,67 +582,54 @@ static struct file_operations acpi_ac_state_fops = {
/* Smart Battery */
-static int acpi_battery_add(struct acpi_sbs *sbs, int id)
+static int acpi_battery_read(struct acpi_battery *battery)
{
- int is_present;
- int result;
- char dir_name[32];
- struct acpi_battery *battery;
+ int result = 0, saved_present = battery->present;
+ u16 state;
- battery = &sbs->battery[id];
+ if (battery->sbs->manager_present) {
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBS_MANAGER, 0x01, (u8 *)&state);
+ if (!result)
+ battery->present = state & (1 << battery->id);
+ state &= 0x0fff;
+ state |= 1 << (battery->id + 12);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBS_MANAGER, 0x01, (u8 *)&state, 2);
+ } else if (battery->id == 0)
+ battery->present = 1;
+ if (result || !battery->present)
+ return result;
- battery->alive = 0;
+ if (saved_present != battery->present) {
+ battery->update_time = 0;
+ result = acpi_battery_get_info(battery);
+ if (result)
+ return result;
+ }
+ result = acpi_battery_get_state(battery);
+ return result;
+}
- battery->init_state = 0;
+static int acpi_battery_add(struct acpi_sbs *sbs, int id)
+{
+ int result;
+ struct acpi_battery *battery = &sbs->battery[id];
battery->id = id;
battery->sbs = sbs;
+ battery->update_time = 0;
+ result = acpi_battery_read(battery);
+ if (result)
+ return result;
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- result = acpi_battery_get_present(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_present() failed"));
- goto end;
- }
-
- is_present = battery->present;
-
- if (is_present) {
- result = acpi_battery_init(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_init() failed"));
- goto end;
- }
- battery->init_state = 1;
- }
-
- sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
-
- result = acpi_sbs_generic_add_fs(&battery->proc_entry,
- acpi_battery_dir,
- dir_name,
- &acpi_battery_info_fops,
- &acpi_battery_state_fops,
- &acpi_battery_alarm_fops, battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generic_add_fs() failed"));
- goto end;
- }
- battery->alive = 1;
-
+ sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
+ acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
+ battery->name, &acpi_battery_info_fops,
+ &acpi_battery_state_fops, &acpi_battery_alarm_fops,
+ battery);
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
- ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name,
- sbs->battery->present ? "present" : "absent");
-
- end:
+ ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
+ battery->name, sbs->battery->present ? "present" : "absent");
return result;
}
@@ -1103,354 +637,105 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
if (sbs->battery[id].proc_entry) {
- acpi_sbs_generic_remove_fs(&(sbs->battery[id].proc_entry),
- acpi_battery_dir);
+ acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
+ acpi_battery_dir);
}
}
-static int acpi_ac_add(struct acpi_sbs *sbs)
+static int acpi_charger_add(struct acpi_sbs *sbs)
{
int result;
result = acpi_ac_get_present(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ac_get_present() failed"));
+ if (result)
goto end;
- }
-
- result = acpi_sbs_generic_add_fs(&sbs->ac_entry,
- acpi_ac_dir,
- ACPI_AC_DIR_NAME,
- NULL, &acpi_ac_state_fops, NULL, sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generic_add_fs() failed"));
+ result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
+ ACPI_AC_DIR_NAME, NULL,
+ &acpi_ac_state_fops, NULL, sbs);
+ if (result)
goto end;
- }
-
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
-
end:
-
return result;
}
-static void acpi_ac_remove(struct acpi_sbs *sbs)
+static void acpi_charger_remove(struct acpi_sbs *sbs)
{
- if (sbs->ac_entry) {
- acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir);
- }
-}
-
-static void acpi_sbs_update_time_run(unsigned long data)
-{
- acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_time, (void *)data);
+ if (sbs->charger_entry)
+ acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
}
-static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
+void acpi_sbs_callback(void *context)
{
- struct acpi_battery *battery;
- int result = 0, cnt;
- int old_ac_present = -1;
- int old_present = -1;
- int new_ac_present = -1;
- int new_present = -1;
- int id_min = 0, id_max = MAX_SBS_BAT - 1;
- char dir_name[32];
- int do_battery_init = 0, do_ac_init = 0;
- int old_remaining_capacity = 0;
- int update_battery = 1;
- int up_tm = update_time;
-
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if (id >= 0) {
- id_min = id_max = id;
- }
-
- if (data_type == DATA_TYPE_COMMON && up_tm > 0) {
- cnt = up_tm / (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm);
- if (sbs->run_cnt % cnt != 0) {
- update_battery = 0;
- }
- }
-
- sbs->run_cnt++;
-
- if (!update_battery) {
- goto end;
- }
-
- old_ac_present = sbs->charger_present;
-
- result = acpi_ac_get_present(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ac_get_present() failed"));
- }
-
- new_ac_present = sbs->charger_present;
-
- do_ac_init = (old_ac_present != new_ac_present);
- if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) {
- do_ac_init = 1;
- }
-
- if (do_ac_init) {
- result = acpi_bus_generate_proc_event4(ACPI_AC_CLASS,
- ACPI_AC_DIR_NAME,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_generate_event4() failed"));
- }
- acpi_bus_generate_netlink_event(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present);
- }
-
- if (data_type == DATA_TYPE_COMMON) {
- if (!do_ac_init && !update_battery) {
- goto end;
- }
- }
-
- if (data_type == DATA_TYPE_AC_STATE && !do_ac_init) {
- goto end;
+ int id;
+ struct acpi_sbs *sbs = context;
+ struct acpi_battery *bat;
+ u8 saved_charger_state = sbs->charger_present;
+ u8 saved_battery_state;
+ acpi_ac_get_present(sbs);
+ if (sbs->charger_present != saved_charger_state) {
+ acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
+ ACPI_SBS_NOTIFY_STATUS,
+ sbs->charger_present);
}
-
- for (id = id_min; id <= id_max; id++) {
- battery = &sbs->battery[id];
- if (battery->alive == 0) {
- continue;
- }
-
- old_remaining_capacity = battery->capacity_now;
-
- old_present = battery->present;
-
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- }
-
- result = acpi_battery_get_present(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_present() failed"));
- }
-
- new_present = battery->present;
-
- do_battery_init = ((old_present != new_present)
- && new_present);
- if (!new_present)
- goto event;
- if (do_ac_init || do_battery_init) {
- result = acpi_battery_init(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_init() "
- "failed"));
- }
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_INFO)
- && new_present) {
- result = acpi_battery_get_info(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_info() failed"));
- }
- }
- if (data_type == DATA_TYPE_INFO) {
- continue;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_STATE)
- && new_present) {
- result = acpi_battery_get_state(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_state() failed"));
- }
- }
- if (data_type == DATA_TYPE_STATE) {
- goto event;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_ALARM)
- && new_present) {
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() "
- "failed"));
- }
- }
- if (data_type == DATA_TYPE_ALARM) {
- continue;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- event:
-
- if (old_present != new_present || do_ac_init ||
- old_remaining_capacity !=
- battery->capacity_now) {
- sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
- dir_name,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_present);
- acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_present);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_generate_proc_event4() "
- "failed"));
- }
+ if (sbs->manager_present) {
+ for (id = 0; id < MAX_SBS_BAT; ++id) {
+ if (!(sbs->batteries_supported & (1 << id)))
+ continue;
+ bat = &sbs->battery[id];
+ saved_battery_state = bat->present;
+ acpi_battery_read(bat);
+ if (saved_battery_state == bat->present)
+ continue;
+ acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
+ bat->name,
+ ACPI_SBS_NOTIFY_STATUS,
+ bat->present);
}
}
-
- end:
-
- return result;
}
-static void acpi_sbs_update_time(void *data)
-{
- struct acpi_sbs *sbs = data;
- unsigned long delay = -1;
- int result;
- unsigned int up_tm = update_time;
-
- if (sbs_mutex_lock(sbs))
- return;
-
- result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_COMMON);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
-
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if (!up_tm) {
- if (timer_pending(&sbs->update_timer))
- del_timer(&sbs->update_timer);
- } else {
- delay = (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm);
- delay = jiffies + HZ * delay;
- if (timer_pending(&sbs->update_timer)) {
- mod_timer(&sbs->update_timer, delay);
- } else {
- sbs->update_timer.data = (unsigned long)data;
- sbs->update_timer.function = acpi_sbs_update_time_run;
- sbs->update_timer.expires = delay;
- add_timer(&sbs->update_timer);
- }
- }
-
- end:
-
- sbs_mutex_unlock(sbs);
-}
+static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_add(struct acpi_device *device)
{
- struct acpi_sbs *sbs = NULL;
- int result = 0, remove_result = 0;
+ struct acpi_sbs *sbs;
+ int result = 0;
int id;
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kzalloc() failed"));
result = -ENOMEM;
goto end;
}
- mutex_init(&sbs->mutex);
-
- sbs_mutex_lock(sbs);
+ mutex_init(&sbs->lock);
- sbs->device = device;
sbs->hc = acpi_driver_data(device->parent);
-
+ sbs->device = device;
strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_SBS_CLASS);
acpi_driver_data(device) = sbs;
- result = acpi_ac_add(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed"));
- goto end;
- }
-
- acpi_sbsm_get_info(sbs);
-
- if (!sbs->manager_present) {
- result = acpi_battery_add(sbs, 0);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_add() failed"));
- goto end;
- }
- } else {
- for (id = 0; id < MAX_SBS_BAT; id++) {
- if ((sbs->batteries_supported & (1 << id))) {
- result = acpi_battery_add(sbs, id);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_add() failed"));
- goto end;
- }
- }
- }
- }
-
- init_timer(&sbs->update_timer);
- result = acpi_check_update_proc(sbs);
+ result = acpi_charger_add(sbs);
if (result)
goto end;
+ result = acpi_manager_get_info(sbs);
+ if (!result) {
+ sbs->manager_present = 1;
+ for (id = 0; id < MAX_SBS_BAT; ++id)
+ if ((sbs->batteries_supported & (1 << id)))
+ acpi_battery_add(sbs, id);
+ } else
+ acpi_battery_add(sbs, 0);
+ acpi_smbus_register_callback(sbs->hc, acpi_sbs_callback, sbs);
end:
-
- sbs_mutex_unlock(sbs);
-
- if (result) {
- remove_result = acpi_sbs_remove(device, 0);
- if (remove_result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_remove() failed"));
- }
- }
-
+ if (result)
+ acpi_sbs_remove(device, 0);
return result;
}
@@ -1459,34 +744,19 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
struct acpi_sbs *sbs;
int id;
- if (!device) {
+ if (!device)
return -EINVAL;
- }
-
sbs = acpi_driver_data(device);
- if (!sbs) {
+ if (!sbs)
return -EINVAL;
- }
-
- sbs_mutex_lock(sbs);
-
- sbs->zombie = 1;
- del_timer_sync(&sbs->update_timer);
- acpi_os_wait_events_complete(NULL);
- del_timer_sync(&sbs->update_timer);
-
- for (id = 0; id < MAX_SBS_BAT; id++) {
+ mutex_lock(&sbs->lock);
+ acpi_smbus_unregister_callback(sbs->hc);
+ for (id = 0; id < MAX_SBS_BAT; ++id)
acpi_battery_remove(sbs, id);
- }
-
- acpi_ac_remove(sbs);
-
- sbs_mutex_unlock(sbs);
-
- mutex_destroy(&sbs->mutex);
-
+ acpi_charger_remove(sbs);
+ mutex_unlock(&sbs->lock);
+ mutex_destroy(&sbs->lock);
kfree(sbs);
-
return 0;
}
@@ -1505,14 +775,10 @@ static void acpi_sbs_rmdirs(void)
static int acpi_sbs_resume(struct acpi_device *device)
{
struct acpi_sbs *sbs;
-
if (!device)
return -EINVAL;
-
sbs = device->driver_data;
-
- sbs->run_cnt = 0;
-
+ acpi_sbs_callback(sbs);
return 0;
}
@@ -1523,14 +789,6 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
- if (mode != DEF_CAPACITY_UNIT
- && mode != MAH_CAPACITY_UNIT
- && mode != MWH_CAPACITY_UNIT) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "invalid mode = %d", mode));
- return -EINVAL;
- }
-
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 12/32] ACPI: SBS: Make SBS reads table-driven.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Re-factor SBS functions to use tables and cycles for repeated operations.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 1292 +++++++++++-----------------------------------------
1 files changed, 275 insertions(+), 1017 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index f35fe63..3351dea 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -1,6 +1,8 @@
/*
- * acpi_sbs.c - ACPI Smart Battery System Driver ($Revision: 1.16 $)
+ * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $)
*
+ * Copyright (c) 2007 Alexey Starikovskiy <astarikovskiy@suse.de>
+ * Copyright (c) 2005-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
* Copyright (c) 2005 Rich Townsend <rhdt@bartol.udel.edu>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -46,53 +48,34 @@
#define ACPI_SBS_FILE_ALARM "alarm"
#define ACPI_BATTERY_DIR_NAME "BAT%i"
#define ACPI_AC_DIR_NAME "AC0"
-#define ACPI_SBC_SMBUS_ADDR 0x9
-#define ACPI_SBSM_SMBUS_ADDR 0xa
-#define ACPI_SB_SMBUS_ADDR 0xb
-#define ACPI_SBS_AC_NOTIFY_STATUS 0x80
-#define ACPI_SBS_BATTERY_NOTIFY_STATUS 0x80
-#define ACPI_SBS_BATTERY_NOTIFY_INFO 0x81
-#define _COMPONENT ACPI_SBS_COMPONENT
+enum acpi_sbs_device_addr {
+ ACPI_SBS_CHARGER = 0x9,
+ ACPI_SBS_MANAGER = 0xa,
+ ACPI_SBS_BATTERY = 0xb,
+};
+
+#define ACPI_SBS_NOTIFY_STATUS 0x80
+#define ACPI_SBS_NOTIFY_INFO 0x81
ACPI_MODULE_NAME("sbs");
-MODULE_AUTHOR("Rich Townsend");
+MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
-#define DEF_CAPACITY_UNIT 3
-#define MAH_CAPACITY_UNIT 1
-#define MWH_CAPACITY_UNIT 2
-#define CAPACITY_UNIT DEF_CAPACITY_UNIT
-
-#define REQUEST_UPDATE_MODE 1
-#define QUEUE_UPDATE_MODE 2
-
-#define DATA_TYPE_COMMON 0
-#define DATA_TYPE_INFO 1
-#define DATA_TYPE_STATE 2
-#define DATA_TYPE_ALARM 3
-#define DATA_TYPE_AC_STATE 4
+static unsigned int cache_time = 1000;
+module_param(cache_time, uint, 0644);
+MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
extern struct proc_dir_entry *acpi_lock_ac_dir(void);
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-#define MAX_SBS_BAT 4
+#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-#define UPDATE_DELAY 10
-
-/* 0 - every time, > 0 - by update_time */
-static unsigned int update_time = 120;
-
-static unsigned int mode = CAPACITY_UNIT;
-
-module_param(update_time, uint, 0644);
-module_param(mode, uint, 0444);
-
static int acpi_sbs_add(struct acpi_device *device);
static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_resume(struct acpi_device *device);
@@ -117,486 +100,187 @@ static struct acpi_driver acpi_sbs_driver = {
struct acpi_battery {
struct acpi_sbs *sbs;
struct proc_dir_entry *proc_entry;
- int vscale;
- int ipscale;
+ unsigned long update_time;
+ char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
char device_name[ACPI_SBS_BLOCK_MAX];
char device_chemistry[ACPI_SBS_BLOCK_MAX];
+ u32 alarm_capacity;
u16 full_charge_capacity;
u16 design_capacity;
u16 design_voltage;
u16 serial_number;
+ u16 cycle_count;
+ u16 temp_now;
u16 voltage_now;
s16 current_now;
+ s16 current_avg;
u16 capacity_now;
+ u16 state_of_charge;
u16 state;
- u16 alarm_capacity;
u16 mode;
+ u16 spec;
u8 id;
- u8 alive:1;
- u8 init_state:1;
u8 present:1;
};
struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
- struct mutex mutex;
- struct proc_dir_entry *ac_entry;
+ struct mutex lock;
+ struct proc_dir_entry *charger_entry;
struct acpi_battery battery[MAX_SBS_BAT];
- int zombie;
- struct timer_list update_timer;
- int run_cnt;
- int update_proc_flg;
- u8 batteries_supported;
+ u8 batteries_supported:4;
u8 manager_present:1;
u8 charger_present:1;
};
-static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type);
-static void acpi_sbs_update_time(void *data);
-
-static int sbs_zombie(struct acpi_sbs *sbs)
+static inline int battery_scale(int log)
{
- return (sbs->zombie);
+ int scale = 1;
+ while (log--)
+ scale *= 10;
+ return scale;
}
-static int sbs_mutex_lock(struct acpi_sbs *sbs)
+static inline int acpi_battery_vscale(struct acpi_battery *battery)
{
- if (sbs_zombie(sbs)) {
- return -ENODEV;
- }
- mutex_lock(&sbs->mutex);
- return 0;
+ return battery_scale((battery->spec & 0x0f00) >> 8);
}
-static void sbs_mutex_unlock(struct acpi_sbs *sbs)
+static inline int acpi_battery_ipscale(struct acpi_battery *battery)
{
- mutex_unlock(&sbs->mutex);
+ return battery_scale((battery->spec & 0xf000) >> 12);
}
-/* --------------------------------------------------------------------------
- Smart Battery System Management
- -------------------------------------------------------------------------- */
-
-static int acpi_check_update_proc(struct acpi_sbs *sbs)
+static inline int acpi_battery_mode(struct acpi_battery *battery)
{
- acpi_status status = AE_OK;
-
- if (update_time == 0) {
- sbs->update_proc_flg = 0;
- return 0;
- }
- if (sbs->update_proc_flg == 0) {
- status = acpi_os_execute(OSL_GPE_HANDLER,
- acpi_sbs_update_time, sbs);
- if (status != AE_OK) {
- ACPI_EXCEPTION((AE_INFO, status,
- "acpi_os_execute() failed"));
- return 1;
- }
- sbs->update_proc_flg = 1;
- }
- return 0;
+ return (battery->mode & 0x8000);
}
-static int acpi_battery_get_present(struct acpi_battery *battery)
+static inline int acpi_battery_scale(struct acpi_battery *battery)
{
- s16 state;
- int result = 0;
- int is_present = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- }
- if (!result) {
- is_present = (state & 0x000f) & (1 << battery->id);
- }
- battery->present = is_present;
-
- return result;
+ return (acpi_battery_mode(battery) ? 10 : 1) *
+ acpi_battery_ipscale(battery);
}
-static int acpi_battery_select(struct acpi_battery *battery)
-{
- struct acpi_sbs *sbs = battery->sbs;
- int result = 0;
- s16 state;
- int foo;
-
- if (sbs->manager_present) {
-
- /* Take special care not to knobble other nibbles of
- * state (aka selector_state), since
- * it causes charging to halt on SBSELs */
+/* --------------------------------------------------------------------------
+ Smart Battery System Management
+ -------------------------------------------------------------------------- */
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
+struct acpi_battery_reader {
+ u8 command; /* command for battery */
+ u8 mode; /* word or block? */
+ size_t offset; /* offset inside struct acpi_sbs_battery */
+};
- foo = (state & 0x0fff) | (1 << (battery->id + 12));
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
- ACPI_SBSM_SMBUS_ADDR, 0x01, (u8 *)&foo, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
- }
+static struct acpi_battery_reader info_readers[] = {
+ {0x01, SMBUS_READ_WORD, offsetof(struct acpi_battery, alarm_capacity)},
+ {0x03, SMBUS_READ_WORD, offsetof(struct acpi_battery, mode)},
+ {0x10, SMBUS_READ_WORD, offsetof(struct acpi_battery, full_charge_capacity)},
+ {0x17, SMBUS_READ_WORD, offsetof(struct acpi_battery, cycle_count)},
+ {0x18, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_capacity)},
+ {0x19, SMBUS_READ_WORD, offsetof(struct acpi_battery, design_voltage)},
+ {0x1a, SMBUS_READ_WORD, offsetof(struct acpi_battery, spec)},
+ {0x1c, SMBUS_READ_WORD, offsetof(struct acpi_battery, serial_number)},
+ {0x20, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, manufacturer_name)},
+ {0x21, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_name)},
+ {0x22, SMBUS_READ_BLOCK, offsetof(struct acpi_battery, device_chemistry)},
+};
- end:
- return result;
-}
+static struct acpi_battery_reader state_readers[] = {
+ {0x08, SMBUS_READ_WORD, offsetof(struct acpi_battery, temp_now)},
+ {0x09, SMBUS_READ_WORD, offsetof(struct acpi_battery, voltage_now)},
+ {0x0a, SMBUS_READ_WORD, offsetof(struct acpi_battery, current_now)},
+ {0x0b, SMBUS_READ_WORD, offsetof(struct acpi_battery, current_avg)},
+ {0x0f, SMBUS_READ_WORD, offsetof(struct acpi_battery, capacity_now)},
+ {0x0e, SMBUS_READ_WORD, offsetof(struct acpi_battery, state_of_charge)},
+ {0x16, SMBUS_READ_WORD, offsetof(struct acpi_battery, state)},
+};
-static int acpi_sbsm_get_info(struct acpi_sbs *sbs)
+static int acpi_manager_get_info(struct acpi_sbs *sbs)
{
int result = 0;
- s16 battery_system_info;
-
- result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBSM_SMBUS_ADDR, 0x04,
- (u8 *)&battery_system_info);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
- sbs->manager_present = 1;
-
- end:
+ u16 battery_system_info;
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ 0x04, (u8 *) & battery_system_info);
+ if (!result)
+ sbs->batteries_supported = battery_system_info & 0x000f;
return result;
}
static int acpi_battery_get_info(struct acpi_battery *battery)
{
- int result = 0;
- s16 battery_mode;
- s16 specification_info;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
- (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
- battery->mode = (battery_mode & 0x8000) >> 15;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x10,
- (u8 *)&battery->full_charge_capacity);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x18,
- (u8 *)&battery->design_capacity);
+ int i, result = 0;
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x19,
- (u8 *)&battery->design_voltage);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
+ for (i = 0; i < ARRAY_SIZE(info_readers); ++i) {
+ result = acpi_smbus_read(battery->sbs->hc, info_readers[i].mode,
+ ACPI_SBS_BATTERY, info_readers[i].command,
+ (u8 *) battery + info_readers[i].offset);
+ if (result)
+ break;
}
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1a,
- (u8 *)&specification_info);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- switch ((specification_info & 0x0f00) >> 8) {
- case 1:
- battery->vscale = 10;
- break;
- case 2:
- battery->vscale = 100;
- break;
- case 3:
- battery->vscale = 1000;
- break;
- default:
- battery->vscale = 1;
- }
-
- switch ((specification_info & 0xf000) >> 12) {
- case 1:
- battery->ipscale = 10;
- break;
- case 2:
- battery->ipscale = 100;
- break;
- case 3:
- battery->ipscale = 1000;
- break;
- default:
- battery->ipscale = 1;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x1c,
- (u8 *)&battery->serial_number);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x20,
- (u8 *)battery->manufacturer_name);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x21,
- (u8 *)battery->device_name);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_BLOCK, ACPI_SB_SMBUS_ADDR, 0x22,
- (u8 *)battery->device_chemistry);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_read_str() failed"));
- goto end;
- }
-
- end:
return result;
}
static int acpi_battery_get_state(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x09,
- (u8 *)&battery->voltage_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0a,
- (u8 *)&battery->current_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x0f,
- (u8 *)&battery->capacity_now);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x16,
- (u8 *)&battery->state);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
- return result;
-}
-
-static int acpi_battery_get_alarm(struct acpi_battery *battery)
-{
- int result = 0;
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery->alarm_capacity);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
-
- return result;
-}
-
-static int acpi_battery_set_alarm(struct acpi_battery *battery,
- unsigned long alarm)
-{
- int result = 0;
- s16 battery_mode;
- int foo;
+ int i, result = 0;
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- /* If necessary, enable the alarm */
-
- if (alarm > 0) {
- result =
- acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x03,
- (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- battery_mode &= 0xbfff;
- result =
- acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&battery_mode, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
+ if (time_before(jiffies, battery->update_time +
+ msecs_to_jiffies(cache_time)))
+ return 0;
+ for (i = 0; i < ARRAY_SIZE(state_readers); ++i) {
+ result = acpi_smbus_read(battery->sbs->hc,
+ state_readers[i].mode,
+ ACPI_SBS_BATTERY,
+ state_readers[i].command,
+ (u8 *)battery +
+ state_readers[i].offset);
+ if (result)
goto end;
- }
}
-
- foo = alarm / (battery->mode ? 10 : 1);
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD, ACPI_SB_SMBUS_ADDR, 0x01,
- (u8 *)&foo, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
-
end:
-
+ battery->update_time = jiffies;
return result;
}
-static int acpi_battery_set_mode(struct acpi_battery *battery)
+static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
- int result = 0;
- s16 battery_mode;
-
- if (mode == DEF_CAPACITY_UNIT) {
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- if (mode == MAH_CAPACITY_UNIT) {
- battery_mode &= 0x7fff;
- } else {
- battery_mode |= 0x8000;
- }
- result = acpi_smbus_write(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode, 2);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_write() failed"));
- goto end;
- }
-
- result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
- ACPI_SB_SMBUS_ADDR, 0x03, (u8 *)&battery_mode);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- end:
- return result;
+ return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBS_BATTERY, 0x01,
+ (u8 *) & battery->alarm_capacity);
}
-static int acpi_battery_init(struct acpi_battery *battery)
+static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
- int result = 0;
-
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- result = acpi_battery_set_mode(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_set_mode() failed"));
- goto end;
- }
-
- result = acpi_battery_get_info(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_info() failed"));
- goto end;
- }
-
- result = acpi_battery_get_state(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_state() failed"));
- goto end;
- }
+ struct acpi_sbs *sbs = battery->sbs;
+ u16 value;
+ return 0;
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() failed"));
- goto end;
+ if (sbs->manager_present) {
+ acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value);
+ value &= 0x0fff;
+ value |= 1 << (battery->id + 12);
+ acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value, 2);
}
-
- end:
- return result;
+ value = battery->alarm_capacity / (acpi_battery_mode(battery) ? 10 : 1);
+ return acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
+ 0x01, (u8 *)&value, 2);
}
static int acpi_ac_get_present(struct acpi_sbs *sbs)
{
- int result = 0;
- s16 charger_status;
-
- result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBC_SMBUS_ADDR, 0x13,
- (u8 *)&charger_status);
-
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_smbus_read() failed"));
- goto end;
- }
-
- sbs->charger_present = (charger_status & 0x8000) >> 15;
-
- end:
+ int result;
+ u16 status;
+ result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_CHARGER,
+ 0x13, (u8 *) & status);
+ if (!result)
+ sbs->charger_present = (status >> 15) & 0x1;
return result;
}
@@ -607,7 +291,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
/* Generic Routines */
static int
-acpi_sbs_generic_add_fs(struct proc_dir_entry **dir,
+acpi_sbs_add_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir,
char *dir_name,
struct file_operations *info_fops,
@@ -669,7 +353,7 @@ acpi_sbs_generic_add_fs(struct proc_dir_entry **dir,
}
static void
-acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir,
+acpi_sbs_remove_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir)
{
@@ -687,75 +371,47 @@ acpi_sbs_generic_remove_fs(struct proc_dir_entry **dir,
static struct proc_dir_entry *acpi_battery_dir = NULL;
+static inline char *acpi_battery_units(struct acpi_battery *battery)
+{
+ return acpi_battery_mode(battery) ? " mWh" : " mAh";
+}
+
+
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
- int cscale;
int result = 0;
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
+ mutex_lock(&sbs->lock);
- result = acpi_check_update_proc(sbs);
- if (result)
+ seq_printf(seq, "present: %s\n",
+ (battery->present) ? "yes" : "no");
+ if (!battery->present)
goto end;
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_INFO);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
-
- if (battery->present) {
- seq_printf(seq, "present: yes\n");
- } else {
- seq_printf(seq, "present: no\n");
- goto end;
- }
-
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
seq_printf(seq, "design capacity: %i%s\n",
- battery->design_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->design_capacity * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "last full capacity: %i%s\n",
- battery->full_charge_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->full_charge_capacity * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "battery technology: rechargeable\n");
-
seq_printf(seq, "design voltage: %i mV\n",
- battery->design_voltage * battery->vscale);
-
+ battery->design_voltage * acpi_battery_vscale(battery));
seq_printf(seq, "design capacity warning: unknown\n");
seq_printf(seq, "design capacity low: unknown\n");
seq_printf(seq, "capacity granularity 1: unknown\n");
seq_printf(seq, "capacity granularity 2: unknown\n");
-
- seq_printf(seq, "model number: %s\n",
- battery->device_name);
-
+ seq_printf(seq, "model number: %s\n", battery->device_name);
seq_printf(seq, "serial number: %i\n",
battery->serial_number);
-
seq_printf(seq, "battery type: %s\n",
battery->device_chemistry);
-
seq_printf(seq, "OEM info: %s\n",
battery->manufacturer_name);
-
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -769,73 +425,29 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- int cscale;
- int foo;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
-
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_STATE);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
- if (battery->present) {
- seq_printf(seq, "present: yes\n");
- } else {
- seq_printf(seq, "present: no\n");
+ mutex_lock(&sbs->lock);
+ seq_printf(seq, "present: %s\n",
+ (battery->present) ? "yes" : "no");
+ if (!battery->present)
goto end;
- }
-
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
-
- if (battery->state & 0x0010) {
- seq_printf(seq, "capacity state: critical\n");
- } else {
- seq_printf(seq, "capacity state: ok\n");
- }
-
- foo = (s16) battery->current_now * battery->ipscale;
- if (battery->mode) {
- foo = foo * battery->design_voltage / 1000;
- }
- if (battery->current_now < 0) {
- seq_printf(seq, "charging state: discharging\n");
- seq_printf(seq, "present rate: %d %s\n",
- -foo, battery->mode ? "mW" : "mA");
- } else if (battery->current_now > 0) {
- seq_printf(seq, "charging state: charging\n");
- seq_printf(seq, "present rate: %d %s\n",
- foo, battery->mode ? "mW" : "mA");
- } else {
- seq_printf(seq, "charging state: charged\n");
- seq_printf(seq, "present rate: 0 %s\n",
- battery->mode ? "mW" : "mA");
- }
+ acpi_battery_get_state(battery);
+ seq_printf(seq, "capacity state: %s\n",
+ (battery->state & 0x0010) ? "critical" : "ok");
+ seq_printf(seq, "charging state: %s\n",
+ (battery->current_now < 0) ? "discharging" :
+ ((battery->current_now > 0) ? "charging" : "charged"));
+ seq_printf(seq, "present rate: %d mA\n",
+ abs(battery->current_now) * acpi_battery_ipscale(battery));
seq_printf(seq, "remaining capacity: %i%s\n",
- battery->capacity_now * cscale,
- battery->mode ? "0 mWh" : " mAh");
-
+ battery->capacity_now * acpi_battery_scale(battery),
+ acpi_battery_units(battery));
seq_printf(seq, "present voltage: %i mV\n",
- battery->voltage_now * battery->vscale);
+ battery->voltage_now * acpi_battery_vscale(battery));
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -849,48 +461,25 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
int result = 0;
- int cscale;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, battery->id, DATA_TYPE_ALARM);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
+ mutex_lock(&sbs->lock);
if (!battery->present) {
seq_printf(seq, "present: no\n");
goto end;
}
- if (battery->mode) {
- cscale = battery->vscale * battery->ipscale;
- } else {
- cscale = battery->ipscale;
- }
-
+ acpi_battery_get_alarm(battery);
seq_printf(seq, "alarm: ");
- if (battery->alarm_capacity) {
+ if (battery->alarm_capacity)
seq_printf(seq, "%i%s\n",
- battery->alarm_capacity * cscale,
- battery->mode ? "0 mWh" : " mAh");
- } else {
+ battery->alarm_capacity *
+ acpi_battery_scale(battery),
+ acpi_battery_units(battery));
+ else
seq_printf(seq, "disabled\n");
- }
-
end:
-
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return result;
}
@@ -902,59 +491,28 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
char alarm_string[12] = { '\0' };
- int result, old_alarm, new_alarm;
-
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
-
- result = acpi_check_update_proc(sbs);
- if (result)
- goto end;
-
+ int result = 0;
+ mutex_lock(&sbs->lock);
if (!battery->present) {
result = -ENODEV;
goto end;
}
-
if (count > sizeof(alarm_string) - 1) {
result = -EINVAL;
goto end;
}
-
if (copy_from_user(alarm_string, buffer, count)) {
result = -EFAULT;
goto end;
}
-
alarm_string[count] = 0;
-
- old_alarm = battery->alarm_capacity;
- new_alarm = simple_strtoul(alarm_string, NULL, 0);
-
- result = acpi_battery_set_alarm(battery, new_alarm);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_set_alarm() failed"));
- acpi_battery_set_alarm(battery, old_alarm);
- goto end;
- }
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() failed"));
- acpi_battery_set_alarm(battery, old_alarm);
- goto end;
- }
-
+ battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0);
+ acpi_battery_set_alarm(battery);
end:
- sbs_mutex_unlock(sbs);
-
- if (result) {
+ mutex_unlock(&sbs->lock);
+ if (result)
return result;
- } else {
- return count;
- }
+ return count;
}
static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
@@ -993,26 +551,15 @@ static struct proc_dir_entry *acpi_ac_dir = NULL;
static int acpi_ac_read_state(struct seq_file *seq, void *offset)
{
- struct acpi_sbs *sbs = seq->private;
- int result;
- if (sbs_mutex_lock(sbs)) {
- return -ENODEV;
- }
+ struct acpi_sbs *sbs = seq->private;
- if (update_time == 0) {
- result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_AC_STATE);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
- }
+ mutex_lock(&sbs->lock);
seq_printf(seq, "state: %s\n",
sbs->charger_present ? "on-line" : "off-line");
- sbs_mutex_unlock(sbs);
-
+ mutex_unlock(&sbs->lock);
return 0;
}
@@ -1035,67 +582,54 @@ static struct file_operations acpi_ac_state_fops = {
/* Smart Battery */
-static int acpi_battery_add(struct acpi_sbs *sbs, int id)
+static int acpi_battery_read(struct acpi_battery *battery)
{
- int is_present;
- int result;
- char dir_name[32];
- struct acpi_battery *battery;
+ int result = 0, saved_present = battery->present;
+ u16 state;
- battery = &sbs->battery[id];
+ if (battery->sbs->manager_present) {
+ result = acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
+ ACPI_SBS_MANAGER, 0x01, (u8 *)&state);
+ if (!result)
+ battery->present = state & (1 << battery->id);
+ state &= 0x0fff;
+ state |= 1 << (battery->id + 12);
+ acpi_smbus_write(battery->sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBS_MANAGER, 0x01, (u8 *)&state, 2);
+ } else if (battery->id == 0)
+ battery->present = 1;
+ if (result || !battery->present)
+ return result;
- battery->alive = 0;
+ if (saved_present != battery->present) {
+ battery->update_time = 0;
+ result = acpi_battery_get_info(battery);
+ if (result)
+ return result;
+ }
+ result = acpi_battery_get_state(battery);
+ return result;
+}
- battery->init_state = 0;
+static int acpi_battery_add(struct acpi_sbs *sbs, int id)
+{
+ int result;
+ struct acpi_battery *battery = &sbs->battery[id];
battery->id = id;
battery->sbs = sbs;
+ battery->update_time = 0;
+ result = acpi_battery_read(battery);
+ if (result)
+ return result;
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- goto end;
- }
-
- result = acpi_battery_get_present(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_present() failed"));
- goto end;
- }
-
- is_present = battery->present;
-
- if (is_present) {
- result = acpi_battery_init(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_init() failed"));
- goto end;
- }
- battery->init_state = 1;
- }
-
- sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
-
- result = acpi_sbs_generic_add_fs(&battery->proc_entry,
- acpi_battery_dir,
- dir_name,
- &acpi_battery_info_fops,
- &acpi_battery_state_fops,
- &acpi_battery_alarm_fops, battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generic_add_fs() failed"));
- goto end;
- }
- battery->alive = 1;
-
+ sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
+ acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
+ battery->name, &acpi_battery_info_fops,
+ &acpi_battery_state_fops, &acpi_battery_alarm_fops,
+ battery);
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
- ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), dir_name,
- sbs->battery->present ? "present" : "absent");
-
- end:
+ ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
+ battery->name, sbs->battery->present ? "present" : "absent");
return result;
}
@@ -1103,354 +637,105 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
if (sbs->battery[id].proc_entry) {
- acpi_sbs_generic_remove_fs(&(sbs->battery[id].proc_entry),
- acpi_battery_dir);
+ acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
+ acpi_battery_dir);
}
}
-static int acpi_ac_add(struct acpi_sbs *sbs)
+static int acpi_charger_add(struct acpi_sbs *sbs)
{
int result;
result = acpi_ac_get_present(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ac_get_present() failed"));
+ if (result)
goto end;
- }
-
- result = acpi_sbs_generic_add_fs(&sbs->ac_entry,
- acpi_ac_dir,
- ACPI_AC_DIR_NAME,
- NULL, &acpi_ac_state_fops, NULL, sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_generic_add_fs() failed"));
+ result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
+ ACPI_AC_DIR_NAME, NULL,
+ &acpi_ac_state_fops, NULL, sbs);
+ if (result)
goto end;
- }
-
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
-
end:
-
return result;
}
-static void acpi_ac_remove(struct acpi_sbs *sbs)
+static void acpi_charger_remove(struct acpi_sbs *sbs)
{
- if (sbs->ac_entry) {
- acpi_sbs_generic_remove_fs(&sbs->ac_entry, acpi_ac_dir);
- }
-}
-
-static void acpi_sbs_update_time_run(unsigned long data)
-{
- acpi_os_execute(OSL_GPE_HANDLER, acpi_sbs_update_time, (void *)data);
+ if (sbs->charger_entry)
+ acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
}
-static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type)
+void acpi_sbs_callback(void *context)
{
- struct acpi_battery *battery;
- int result = 0, cnt;
- int old_ac_present = -1;
- int old_present = -1;
- int new_ac_present = -1;
- int new_present = -1;
- int id_min = 0, id_max = MAX_SBS_BAT - 1;
- char dir_name[32];
- int do_battery_init = 0, do_ac_init = 0;
- int old_remaining_capacity = 0;
- int update_battery = 1;
- int up_tm = update_time;
-
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if (id >= 0) {
- id_min = id_max = id;
- }
-
- if (data_type == DATA_TYPE_COMMON && up_tm > 0) {
- cnt = up_tm / (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm);
- if (sbs->run_cnt % cnt != 0) {
- update_battery = 0;
- }
- }
-
- sbs->run_cnt++;
-
- if (!update_battery) {
- goto end;
- }
-
- old_ac_present = sbs->charger_present;
-
- result = acpi_ac_get_present(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_ac_get_present() failed"));
- }
-
- new_ac_present = sbs->charger_present;
-
- do_ac_init = (old_ac_present != new_ac_present);
- if (sbs->run_cnt == 1 && data_type == DATA_TYPE_COMMON) {
- do_ac_init = 1;
- }
-
- if (do_ac_init) {
- result = acpi_bus_generate_proc_event4(ACPI_AC_CLASS,
- ACPI_AC_DIR_NAME,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_generate_event4() failed"));
- }
- acpi_bus_generate_netlink_event(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
- ACPI_SBS_AC_NOTIFY_STATUS,
- new_ac_present);
- }
-
- if (data_type == DATA_TYPE_COMMON) {
- if (!do_ac_init && !update_battery) {
- goto end;
- }
- }
-
- if (data_type == DATA_TYPE_AC_STATE && !do_ac_init) {
- goto end;
+ int id;
+ struct acpi_sbs *sbs = context;
+ struct acpi_battery *bat;
+ u8 saved_charger_state = sbs->charger_present;
+ u8 saved_battery_state;
+ acpi_ac_get_present(sbs);
+ if (sbs->charger_present != saved_charger_state) {
+ acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
+ ACPI_SBS_NOTIFY_STATUS,
+ sbs->charger_present);
}
-
- for (id = id_min; id <= id_max; id++) {
- battery = &sbs->battery[id];
- if (battery->alive == 0) {
- continue;
- }
-
- old_remaining_capacity = battery->capacity_now;
-
- old_present = battery->present;
-
- result = acpi_battery_select(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_select() failed"));
- }
-
- result = acpi_battery_get_present(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_present() failed"));
- }
-
- new_present = battery->present;
-
- do_battery_init = ((old_present != new_present)
- && new_present);
- if (!new_present)
- goto event;
- if (do_ac_init || do_battery_init) {
- result = acpi_battery_init(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_init() "
- "failed"));
- }
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_INFO)
- && new_present) {
- result = acpi_battery_get_info(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_info() failed"));
- }
- }
- if (data_type == DATA_TYPE_INFO) {
- continue;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_STATE)
- && new_present) {
- result = acpi_battery_get_state(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_state() failed"));
- }
- }
- if (data_type == DATA_TYPE_STATE) {
- goto event;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if ((data_type == DATA_TYPE_COMMON
- || data_type == DATA_TYPE_ALARM)
- && new_present) {
- result = acpi_battery_get_alarm(battery);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_get_alarm() "
- "failed"));
- }
- }
- if (data_type == DATA_TYPE_ALARM) {
- continue;
- }
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- event:
-
- if (old_present != new_present || do_ac_init ||
- old_remaining_capacity !=
- battery->capacity_now) {
- sprintf(dir_name, ACPI_BATTERY_DIR_NAME, id);
- result = acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
- dir_name,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_present);
- acpi_bus_generate_netlink_event(ACPI_BATTERY_CLASS, dir_name,
- ACPI_SBS_BATTERY_NOTIFY_STATUS,
- new_present);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_generate_proc_event4() "
- "failed"));
- }
+ if (sbs->manager_present) {
+ for (id = 0; id < MAX_SBS_BAT; ++id) {
+ if (!(sbs->batteries_supported & (1 << id)))
+ continue;
+ bat = &sbs->battery[id];
+ saved_battery_state = bat->present;
+ acpi_battery_read(bat);
+ if (saved_battery_state == bat->present)
+ continue;
+ acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
+ bat->name,
+ ACPI_SBS_NOTIFY_STATUS,
+ bat->present);
}
}
-
- end:
-
- return result;
}
-static void acpi_sbs_update_time(void *data)
-{
- struct acpi_sbs *sbs = data;
- unsigned long delay = -1;
- int result;
- unsigned int up_tm = update_time;
-
- if (sbs_mutex_lock(sbs))
- return;
-
- result = acpi_sbs_update_run(sbs, -1, DATA_TYPE_COMMON);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_update_run() failed"));
- }
-
- if (sbs_zombie(sbs)) {
- goto end;
- }
-
- if (!up_tm) {
- if (timer_pending(&sbs->update_timer))
- del_timer(&sbs->update_timer);
- } else {
- delay = (up_tm > UPDATE_DELAY ? UPDATE_DELAY : up_tm);
- delay = jiffies + HZ * delay;
- if (timer_pending(&sbs->update_timer)) {
- mod_timer(&sbs->update_timer, delay);
- } else {
- sbs->update_timer.data = (unsigned long)data;
- sbs->update_timer.function = acpi_sbs_update_time_run;
- sbs->update_timer.expires = delay;
- add_timer(&sbs->update_timer);
- }
- }
-
- end:
-
- sbs_mutex_unlock(sbs);
-}
+static int acpi_sbs_remove(struct acpi_device *device, int type);
static int acpi_sbs_add(struct acpi_device *device)
{
- struct acpi_sbs *sbs = NULL;
- int result = 0, remove_result = 0;
+ struct acpi_sbs *sbs;
+ int result = 0;
int id;
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "kzalloc() failed"));
result = -ENOMEM;
goto end;
}
- mutex_init(&sbs->mutex);
-
- sbs_mutex_lock(sbs);
+ mutex_init(&sbs->lock);
- sbs->device = device;
sbs->hc = acpi_driver_data(device->parent);
-
+ sbs->device = device;
strcpy(acpi_device_name(device), ACPI_SBS_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_SBS_CLASS);
acpi_driver_data(device) = sbs;
- result = acpi_ac_add(sbs);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR, "acpi_ac_add() failed"));
- goto end;
- }
-
- acpi_sbsm_get_info(sbs);
-
- if (!sbs->manager_present) {
- result = acpi_battery_add(sbs, 0);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_add() failed"));
- goto end;
- }
- } else {
- for (id = 0; id < MAX_SBS_BAT; id++) {
- if ((sbs->batteries_supported & (1 << id))) {
- result = acpi_battery_add(sbs, id);
- if (result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_battery_add() failed"));
- goto end;
- }
- }
- }
- }
-
- init_timer(&sbs->update_timer);
- result = acpi_check_update_proc(sbs);
+ result = acpi_charger_add(sbs);
if (result)
goto end;
+ result = acpi_manager_get_info(sbs);
+ if (!result) {
+ sbs->manager_present = 1;
+ for (id = 0; id < MAX_SBS_BAT; ++id)
+ if ((sbs->batteries_supported & (1 << id)))
+ acpi_battery_add(sbs, id);
+ } else
+ acpi_battery_add(sbs, 0);
+ acpi_smbus_register_callback(sbs->hc, acpi_sbs_callback, sbs);
end:
-
- sbs_mutex_unlock(sbs);
-
- if (result) {
- remove_result = acpi_sbs_remove(device, 0);
- if (remove_result) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_sbs_remove() failed"));
- }
- }
-
+ if (result)
+ acpi_sbs_remove(device, 0);
return result;
}
@@ -1459,34 +744,19 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
struct acpi_sbs *sbs;
int id;
- if (!device) {
+ if (!device)
return -EINVAL;
- }
-
sbs = acpi_driver_data(device);
- if (!sbs) {
+ if (!sbs)
return -EINVAL;
- }
-
- sbs_mutex_lock(sbs);
-
- sbs->zombie = 1;
- del_timer_sync(&sbs->update_timer);
- acpi_os_wait_events_complete(NULL);
- del_timer_sync(&sbs->update_timer);
-
- for (id = 0; id < MAX_SBS_BAT; id++) {
+ mutex_lock(&sbs->lock);
+ acpi_smbus_unregister_callback(sbs->hc);
+ for (id = 0; id < MAX_SBS_BAT; ++id)
acpi_battery_remove(sbs, id);
- }
-
- acpi_ac_remove(sbs);
-
- sbs_mutex_unlock(sbs);
-
- mutex_destroy(&sbs->mutex);
-
+ acpi_charger_remove(sbs);
+ mutex_unlock(&sbs->lock);
+ mutex_destroy(&sbs->lock);
kfree(sbs);
-
return 0;
}
@@ -1505,14 +775,10 @@ static void acpi_sbs_rmdirs(void)
static int acpi_sbs_resume(struct acpi_device *device)
{
struct acpi_sbs *sbs;
-
if (!device)
return -EINVAL;
-
sbs = device->driver_data;
-
- sbs->run_cnt = 0;
-
+ acpi_sbs_callback(sbs);
return 0;
}
@@ -1523,14 +789,6 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
- if (mode != DEF_CAPACITY_UNIT
- && mode != MAH_CAPACITY_UNIT
- && mode != MWH_CAPACITY_UNIT) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "invalid mode = %d", mode));
- return -EINVAL;
- }
-
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir) {
ACPI_EXCEPTION((AE_INFO, AE_ERROR,
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 13/32] ACPI: SBS: Add support for power_supply class (and sysfs)
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <aystarik@gmail.com>
Add support for power_supply class and sysfs interface of it.
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 331 +++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 250 insertions(+), 81 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 3351dea..74abfd3 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -28,17 +28,23 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
+
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+
#include <linux/acpi.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
+#if defined(CONFIG_POWER_SUPPLY) || defined (CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#include "sbshc.h"
-#define ACPI_SBS_COMPONENT 0x00080000
#define ACPI_SBS_CLASS "sbs"
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_BATTERY_CLASS "battery"
@@ -58,8 +64,6 @@ enum acpi_sbs_device_addr {
#define ACPI_SBS_NOTIFY_STATUS 0x80
#define ACPI_SBS_NOTIFY_INFO 0x81
-ACPI_MODULE_NAME("sbs");
-
MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
@@ -76,28 +80,16 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-static int acpi_sbs_add(struct acpi_device *device);
-static int acpi_sbs_remove(struct acpi_device *device, int type);
-static int acpi_sbs_resume(struct acpi_device *device);
-
static const struct acpi_device_id sbs_device_ids[] = {
{"ACPI0002", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
-static struct acpi_driver acpi_sbs_driver = {
- .name = "sbs",
- .class = ACPI_SBS_CLASS,
- .ids = sbs_device_ids,
- .ops = {
- .add = acpi_sbs_add,
- .remove = acpi_sbs_remove,
- .resume = acpi_sbs_resume,
- },
-};
-
struct acpi_battery {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply bat;
+#endif
struct acpi_sbs *sbs;
struct proc_dir_entry *proc_entry;
unsigned long update_time;
@@ -105,7 +97,7 @@ struct acpi_battery {
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
char device_name[ACPI_SBS_BLOCK_MAX];
char device_chemistry[ACPI_SBS_BLOCK_MAX];
- u32 alarm_capacity;
+ u16 alarm_capacity;
u16 full_charge_capacity;
u16 design_capacity;
u16 design_voltage;
@@ -124,7 +116,12 @@ struct acpi_battery {
u8 present:1;
};
+#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
+
struct acpi_sbs {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply charger;
+#endif
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
@@ -135,6 +132,8 @@ struct acpi_sbs {
u8 charger_present:1;
};
+#define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger)
+
static inline int battery_scale(int log)
{
int scale = 1;
@@ -164,6 +163,146 @@ static inline int acpi_battery_scale(struct acpi_battery *battery)
acpi_battery_ipscale(battery);
}
+#ifdef ENABLE_POWER_SUPPLY
+static int sbs_get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_sbs *sbs = to_acpi_sbs(psy);
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = sbs->charger_present;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int acpi_battery_technology(struct acpi_battery *battery)
+{
+ if (!strcasecmp("NiCd", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_NiCd;
+ if (!strcasecmp("NiMH", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_NiMH;
+ if (!strcasecmp("LION", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_LION;
+ if (!strcasecmp("LiP", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_LIPO;
+ return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+}
+
+static int acpi_sbs_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_battery *battery = to_acpi_battery(psy);
+
+ if ((!battery->present) && psp != POWER_SUPPLY_PROP_PRESENT)
+ return -ENODEV;
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ if (battery->current_now < 0)
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ else if (battery->current_now > 0)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = battery->present;
+ break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = acpi_battery_technology(battery);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = battery->design_voltage *
+ acpi_battery_vscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery->voltage_now *
+ acpi_battery_vscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = abs(battery->current_now) *
+ acpi_battery_ipscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_AVG:
+ val->intval = abs(battery->current_avg) *
+ acpi_battery_ipscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval = battery->state_of_charge;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+ val->intval = battery->design_capacity *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL:
+ case POWER_SUPPLY_PROP_ENERGY_FULL:
+ val->intval = battery->full_charge_capacity *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_NOW:
+ case POWER_SUPPLY_PROP_ENERGY_NOW:
+ val->intval = battery->capacity_now *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_TEMP:
+ val->intval = battery->temp_now - 2730; // dK -> dC
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = battery->device_name;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = battery->manufacturer_name;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property sbs_ac_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+static enum power_supply_property sbs_charge_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static enum power_supply_property sbs_energy_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
+ POWER_SUPPLY_PROP_ENERGY_FULL,
+ POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+#endif
+
/* --------------------------------------------------------------------------
Smart Battery System Management
-------------------------------------------------------------------------- */
@@ -204,7 +343,7 @@ static int acpi_manager_get_info(struct acpi_sbs *sbs)
u16 battery_system_info;
result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
- 0x04, (u8 *) & battery_system_info);
+ 0x04, (u8 *)&battery_system_info);
if (!result)
sbs->batteries_supported = battery_system_info & 0x000f;
return result;
@@ -215,9 +354,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
int i, result = 0;
for (i = 0; i < ARRAY_SIZE(info_readers); ++i) {
- result = acpi_smbus_read(battery->sbs->hc, info_readers[i].mode,
- ACPI_SBS_BATTERY, info_readers[i].command,
- (u8 *) battery + info_readers[i].offset);
+ result = acpi_smbus_read(battery->sbs->hc,
+ info_readers[i].mode,
+ ACPI_SBS_BATTERY,
+ info_readers[i].command,
+ (u8 *) battery +
+ info_readers[i].offset);
if (result)
break;
}
@@ -228,7 +370,8 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
{
int i, result = 0;
- if (time_before(jiffies, battery->update_time +
+ if (battery->update_time &&
+ time_before(jiffies, battery->update_time +
msecs_to_jiffies(cache_time)))
return 0;
for (i = 0; i < ARRAY_SIZE(state_readers); ++i) {
@@ -250,26 +393,36 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
ACPI_SBS_BATTERY, 0x01,
- (u8 *) & battery->alarm_capacity);
+ (u8 *)&battery->alarm_capacity);
}
static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
struct acpi_sbs *sbs = battery->sbs;
- u16 value;
- return 0;
+ u16 value, sel = 1 << (battery->id + 12);
+
+ int ret;
+
if (sbs->manager_present) {
- acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ ret = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
0x01, (u8 *)&value);
- value &= 0x0fff;
- value |= 1 << (battery->id + 12);
- acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_MANAGER,
- 0x01, (u8 *)&value, 2);
+ if (ret)
+ goto end;
+ if ((value & 0xf000) != sel) {
+ value &= 0x0fff;
+ value |= sel;
+ ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value, 2);
+ if (ret)
+ goto end;
+ }
}
- value = battery->alarm_capacity / (acpi_battery_mode(battery) ? 10 : 1);
- return acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
- 0x01, (u8 *)&value, 2);
+ ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
+ 0x01, (u8 *)&battery->alarm_capacity, 2);
+ end:
+ return ret;
}
static int acpi_ac_get_present(struct acpi_sbs *sbs)
@@ -289,22 +442,19 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
-------------------------------------------------------------------------- */
/* Generic Routines */
-
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
- struct proc_dir_entry *parent_dir,
- char *dir_name,
- struct file_operations *info_fops,
- struct file_operations *state_fops,
- struct file_operations *alarm_fops, void *data)
+ struct proc_dir_entry *parent_dir,
+ char *dir_name,
+ struct file_operations *info_fops,
+ struct file_operations *state_fops,
+ struct file_operations *alarm_fops, void *data)
{
struct proc_dir_entry *entry = NULL;
if (!*dir) {
*dir = proc_mkdir(dir_name, parent_dir);
if (!*dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "proc_mkdir() failed"));
return -ENODEV;
}
(*dir)->owner = THIS_MODULE;
@@ -313,10 +463,7 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'info' [R] */
if (info_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_INFO, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = info_fops;
entry->data = data;
entry->owner = THIS_MODULE;
@@ -326,10 +473,7 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'state' [R] */
if (state_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_STATE, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = state_fops;
entry->data = data;
entry->owner = THIS_MODULE;
@@ -339,16 +483,12 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'alarm' [R/W] */
if (alarm_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = alarm_fops;
entry->data = data;
entry->owner = THIS_MODULE;
}
}
-
return 0;
}
@@ -356,7 +496,6 @@ static void
acpi_sbs_remove_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir)
{
-
if (*dir) {
remove_proc_entry(ACPI_SBS_FILE_INFO, *dir);
remove_proc_entry(ACPI_SBS_FILE_STATE, *dir);
@@ -364,11 +503,9 @@ acpi_sbs_remove_fs(struct proc_dir_entry **dir,
remove_proc_entry((*dir)->name, parent_dir);
*dir = NULL;
}
-
}
/* Smart Battery Interface */
-
static struct proc_dir_entry *acpi_battery_dir = NULL;
static inline char *acpi_battery_units(struct acpi_battery *battery)
@@ -506,7 +643,8 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
goto end;
}
alarm_string[count] = 0;
- battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0);
+ battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) /
+ acpi_battery_scale(battery);
acpi_battery_set_alarm(battery);
end:
mutex_unlock(&sbs->lock);
@@ -579,9 +717,6 @@ static struct file_operations acpi_ac_state_fops = {
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-
-/* Smart Battery */
-
static int acpi_battery_read(struct acpi_battery *battery)
{
int result = 0, saved_present = battery->present;
@@ -611,13 +746,14 @@ static int acpi_battery_read(struct acpi_battery *battery)
return result;
}
+/* Smart Battery */
static int acpi_battery_add(struct acpi_sbs *sbs, int id)
{
- int result;
struct acpi_battery *battery = &sbs->battery[id];
+ int result;
+
battery->id = id;
battery->sbs = sbs;
- battery->update_time = 0;
result = acpi_battery_read(battery);
if (result)
return result;
@@ -627,6 +763,21 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
+#ifdef ENABLE_POWER_SUPPLY
+ battery->bat.name = battery->name;
+ battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+ if (!acpi_battery_mode(battery)) {
+ battery->bat.properties = sbs_charge_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(sbs_charge_battery_props);
+ } else {
+ battery->bat.properties = sbs_energy_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(sbs_energy_battery_props);
+ }
+ battery->bat.get_property = acpi_sbs_battery_get_property;
+ result = power_supply_register(&sbs->device->dev, &battery->bat);
+#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
battery->name, sbs->battery->present ? "present" : "absent");
@@ -635,7 +786,10 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (sbs->battery[id].bat.dev)
+ power_supply_unregister(&sbs->battery[id].bat);
+#endif
if (sbs->battery[id].proc_entry) {
acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
@@ -654,6 +808,14 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
+#ifdef ENABLE_POWER_SUPPLY
+ sbs->charger.name = "sbs-charger";
+ sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
+ sbs->charger.properties = sbs_ac_props;
+ sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
+ sbs->charger.get_property = sbs_get_ac_property;
+ power_supply_register(&sbs->device->dev, &sbs->charger);
+#endif
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@@ -663,7 +825,10 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
static void acpi_charger_remove(struct acpi_sbs *sbs)
{
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (sbs->charger.dev)
+ power_supply_unregister(&sbs->charger);
+#endif
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
}
@@ -680,6 +845,9 @@ void acpi_sbs_callback(void *context)
acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
ACPI_SBS_NOTIFY_STATUS,
sbs->charger_present);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
+#endif
}
if (sbs->manager_present) {
for (id = 0; id < MAX_SBS_BAT; ++id) {
@@ -694,6 +862,9 @@ void acpi_sbs_callback(void *context)
bat->name,
ACPI_SBS_NOTIFY_STATUS,
bat->present);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
}
}
@@ -782,45 +953,43 @@ static int acpi_sbs_resume(struct acpi_device *device)
return 0;
}
+static struct acpi_driver acpi_sbs_driver = {
+ .name = "sbs",
+ .class = ACPI_SBS_CLASS,
+ .ids = sbs_device_ids,
+ .ops = {
+ .add = acpi_sbs_add,
+ .remove = acpi_sbs_remove,
+ .resume = acpi_sbs_resume,
+ },
+};
+
static int __init acpi_sbs_init(void)
{
int result = 0;
if (acpi_disabled)
return -ENODEV;
-
acpi_ac_dir = acpi_lock_ac_dir();
- if (!acpi_ac_dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_lock_ac_dir() failed"));
+ if (!acpi_ac_dir)
return -ENODEV;
- }
-
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_lock_battery_dir() failed"));
acpi_sbs_rmdirs();
return -ENODEV;
}
-
result = acpi_bus_register_driver(&acpi_sbs_driver);
if (result < 0) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_register_driver() failed"));
acpi_sbs_rmdirs();
return -ENODEV;
}
-
return 0;
}
static void __exit acpi_sbs_exit(void)
{
acpi_bus_unregister_driver(&acpi_sbs_driver);
-
acpi_sbs_rmdirs();
-
return;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 13/32] ACPI: SBS: Add support for power_supply class (and sysfs)
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <aystarik@gmail.com>
Add support for power_supply class and sysfs interface of it.
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 331 +++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 250 insertions(+), 81 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 3351dea..74abfd3 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -28,17 +28,23 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
+
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+
#include <linux/acpi.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
#include <linux/delay.h>
+#if defined(CONFIG_POWER_SUPPLY) || defined (CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#include "sbshc.h"
-#define ACPI_SBS_COMPONENT 0x00080000
#define ACPI_SBS_CLASS "sbs"
#define ACPI_AC_CLASS "ac_adapter"
#define ACPI_BATTERY_CLASS "battery"
@@ -58,8 +64,6 @@ enum acpi_sbs_device_addr {
#define ACPI_SBS_NOTIFY_STATUS 0x80
#define ACPI_SBS_NOTIFY_INFO 0x81
-ACPI_MODULE_NAME("sbs");
-
MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
MODULE_LICENSE("GPL");
@@ -76,28 +80,16 @@ extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
-static int acpi_sbs_add(struct acpi_device *device);
-static int acpi_sbs_remove(struct acpi_device *device, int type);
-static int acpi_sbs_resume(struct acpi_device *device);
-
static const struct acpi_device_id sbs_device_ids[] = {
{"ACPI0002", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
-static struct acpi_driver acpi_sbs_driver = {
- .name = "sbs",
- .class = ACPI_SBS_CLASS,
- .ids = sbs_device_ids,
- .ops = {
- .add = acpi_sbs_add,
- .remove = acpi_sbs_remove,
- .resume = acpi_sbs_resume,
- },
-};
-
struct acpi_battery {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply bat;
+#endif
struct acpi_sbs *sbs;
struct proc_dir_entry *proc_entry;
unsigned long update_time;
@@ -105,7 +97,7 @@ struct acpi_battery {
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
char device_name[ACPI_SBS_BLOCK_MAX];
char device_chemistry[ACPI_SBS_BLOCK_MAX];
- u32 alarm_capacity;
+ u16 alarm_capacity;
u16 full_charge_capacity;
u16 design_capacity;
u16 design_voltage;
@@ -124,7 +116,12 @@ struct acpi_battery {
u8 present:1;
};
+#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
+
struct acpi_sbs {
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply charger;
+#endif
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
@@ -135,6 +132,8 @@ struct acpi_sbs {
u8 charger_present:1;
};
+#define to_acpi_sbs(x) container_of(x, struct acpi_sbs, charger)
+
static inline int battery_scale(int log)
{
int scale = 1;
@@ -164,6 +163,146 @@ static inline int acpi_battery_scale(struct acpi_battery *battery)
acpi_battery_ipscale(battery);
}
+#ifdef ENABLE_POWER_SUPPLY
+static int sbs_get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_sbs *sbs = to_acpi_sbs(psy);
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = sbs->charger_present;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int acpi_battery_technology(struct acpi_battery *battery)
+{
+ if (!strcasecmp("NiCd", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_NiCd;
+ if (!strcasecmp("NiMH", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_NiMH;
+ if (!strcasecmp("LION", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_LION;
+ if (!strcasecmp("LiP", battery->device_chemistry))
+ return POWER_SUPPLY_TECHNOLOGY_LIPO;
+ return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+}
+
+static int acpi_sbs_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_battery *battery = to_acpi_battery(psy);
+
+ if ((!battery->present) && psp != POWER_SUPPLY_PROP_PRESENT)
+ return -ENODEV;
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ if (battery->current_now < 0)
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ else if (battery->current_now > 0)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = battery->present;
+ break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = acpi_battery_technology(battery);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = battery->design_voltage *
+ acpi_battery_vscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery->voltage_now *
+ acpi_battery_vscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = abs(battery->current_now) *
+ acpi_battery_ipscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_AVG:
+ val->intval = abs(battery->current_avg) *
+ acpi_battery_ipscale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval = battery->state_of_charge;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+ val->intval = battery->design_capacity *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL:
+ case POWER_SUPPLY_PROP_ENERGY_FULL:
+ val->intval = battery->full_charge_capacity *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_NOW:
+ case POWER_SUPPLY_PROP_ENERGY_NOW:
+ val->intval = battery->capacity_now *
+ acpi_battery_scale(battery) * 1000;
+ break;
+ case POWER_SUPPLY_PROP_TEMP:
+ val->intval = battery->temp_now - 2730; // dK -> dC
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = battery->device_name;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = battery->manufacturer_name;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property sbs_ac_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
+static enum power_supply_property sbs_charge_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static enum power_supply_property sbs_energy_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CURRENT_AVG,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
+ POWER_SUPPLY_PROP_ENERGY_FULL,
+ POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+#endif
+
/* --------------------------------------------------------------------------
Smart Battery System Management
-------------------------------------------------------------------------- */
@@ -204,7 +343,7 @@ static int acpi_manager_get_info(struct acpi_sbs *sbs)
u16 battery_system_info;
result = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
- 0x04, (u8 *) & battery_system_info);
+ 0x04, (u8 *)&battery_system_info);
if (!result)
sbs->batteries_supported = battery_system_info & 0x000f;
return result;
@@ -215,9 +354,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
int i, result = 0;
for (i = 0; i < ARRAY_SIZE(info_readers); ++i) {
- result = acpi_smbus_read(battery->sbs->hc, info_readers[i].mode,
- ACPI_SBS_BATTERY, info_readers[i].command,
- (u8 *) battery + info_readers[i].offset);
+ result = acpi_smbus_read(battery->sbs->hc,
+ info_readers[i].mode,
+ ACPI_SBS_BATTERY,
+ info_readers[i].command,
+ (u8 *) battery +
+ info_readers[i].offset);
if (result)
break;
}
@@ -228,7 +370,8 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
{
int i, result = 0;
- if (time_before(jiffies, battery->update_time +
+ if (battery->update_time &&
+ time_before(jiffies, battery->update_time +
msecs_to_jiffies(cache_time)))
return 0;
for (i = 0; i < ARRAY_SIZE(state_readers); ++i) {
@@ -250,26 +393,36 @@ static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
ACPI_SBS_BATTERY, 0x01,
- (u8 *) & battery->alarm_capacity);
+ (u8 *)&battery->alarm_capacity);
}
static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
struct acpi_sbs *sbs = battery->sbs;
- u16 value;
- return 0;
+ u16 value, sel = 1 << (battery->id + 12);
+
+ int ret;
+
if (sbs->manager_present) {
- acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
+ ret = acpi_smbus_read(sbs->hc, SMBUS_READ_WORD, ACPI_SBS_MANAGER,
0x01, (u8 *)&value);
- value &= 0x0fff;
- value |= 1 << (battery->id + 12);
- acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_MANAGER,
- 0x01, (u8 *)&value, 2);
+ if (ret)
+ goto end;
+ if ((value & 0xf000) != sel) {
+ value &= 0x0fff;
+ value |= sel;
+ ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD,
+ ACPI_SBS_MANAGER,
+ 0x01, (u8 *)&value, 2);
+ if (ret)
+ goto end;
+ }
}
- value = battery->alarm_capacity / (acpi_battery_mode(battery) ? 10 : 1);
- return acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
- 0x01, (u8 *)&value, 2);
+ ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
+ 0x01, (u8 *)&battery->alarm_capacity, 2);
+ end:
+ return ret;
}
static int acpi_ac_get_present(struct acpi_sbs *sbs)
@@ -289,22 +442,19 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
-------------------------------------------------------------------------- */
/* Generic Routines */
-
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
- struct proc_dir_entry *parent_dir,
- char *dir_name,
- struct file_operations *info_fops,
- struct file_operations *state_fops,
- struct file_operations *alarm_fops, void *data)
+ struct proc_dir_entry *parent_dir,
+ char *dir_name,
+ struct file_operations *info_fops,
+ struct file_operations *state_fops,
+ struct file_operations *alarm_fops, void *data)
{
struct proc_dir_entry *entry = NULL;
if (!*dir) {
*dir = proc_mkdir(dir_name, parent_dir);
if (!*dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "proc_mkdir() failed"));
return -ENODEV;
}
(*dir)->owner = THIS_MODULE;
@@ -313,10 +463,7 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'info' [R] */
if (info_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_INFO, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = info_fops;
entry->data = data;
entry->owner = THIS_MODULE;
@@ -326,10 +473,7 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'state' [R] */
if (state_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_STATE, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = state_fops;
entry->data = data;
entry->owner = THIS_MODULE;
@@ -339,16 +483,12 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
/* 'alarm' [R/W] */
if (alarm_fops) {
entry = create_proc_entry(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir);
- if (!entry) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "create_proc_entry() failed"));
- } else {
+ if (entry) {
entry->proc_fops = alarm_fops;
entry->data = data;
entry->owner = THIS_MODULE;
}
}
-
return 0;
}
@@ -356,7 +496,6 @@ static void
acpi_sbs_remove_fs(struct proc_dir_entry **dir,
struct proc_dir_entry *parent_dir)
{
-
if (*dir) {
remove_proc_entry(ACPI_SBS_FILE_INFO, *dir);
remove_proc_entry(ACPI_SBS_FILE_STATE, *dir);
@@ -364,11 +503,9 @@ acpi_sbs_remove_fs(struct proc_dir_entry **dir,
remove_proc_entry((*dir)->name, parent_dir);
*dir = NULL;
}
-
}
/* Smart Battery Interface */
-
static struct proc_dir_entry *acpi_battery_dir = NULL;
static inline char *acpi_battery_units(struct acpi_battery *battery)
@@ -506,7 +643,8 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer,
goto end;
}
alarm_string[count] = 0;
- battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0);
+ battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) /
+ acpi_battery_scale(battery);
acpi_battery_set_alarm(battery);
end:
mutex_unlock(&sbs->lock);
@@ -579,9 +717,6 @@ static struct file_operations acpi_ac_state_fops = {
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-
-/* Smart Battery */
-
static int acpi_battery_read(struct acpi_battery *battery)
{
int result = 0, saved_present = battery->present;
@@ -611,13 +746,14 @@ static int acpi_battery_read(struct acpi_battery *battery)
return result;
}
+/* Smart Battery */
static int acpi_battery_add(struct acpi_sbs *sbs, int id)
{
- int result;
struct acpi_battery *battery = &sbs->battery[id];
+ int result;
+
battery->id = id;
battery->sbs = sbs;
- battery->update_time = 0;
result = acpi_battery_read(battery);
if (result)
return result;
@@ -627,6 +763,21 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
+#ifdef ENABLE_POWER_SUPPLY
+ battery->bat.name = battery->name;
+ battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+ if (!acpi_battery_mode(battery)) {
+ battery->bat.properties = sbs_charge_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(sbs_charge_battery_props);
+ } else {
+ battery->bat.properties = sbs_energy_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(sbs_energy_battery_props);
+ }
+ battery->bat.get_property = acpi_sbs_battery_get_property;
+ result = power_supply_register(&sbs->device->dev, &battery->bat);
+#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
battery->name, sbs->battery->present ? "present" : "absent");
@@ -635,7 +786,10 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (sbs->battery[id].bat.dev)
+ power_supply_unregister(&sbs->battery[id].bat);
+#endif
if (sbs->battery[id].proc_entry) {
acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
@@ -654,6 +808,14 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
+#ifdef ENABLE_POWER_SUPPLY
+ sbs->charger.name = "sbs-charger";
+ sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
+ sbs->charger.properties = sbs_ac_props;
+ sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
+ sbs->charger.get_property = sbs_get_ac_property;
+ power_supply_register(&sbs->device->dev, &sbs->charger);
+#endif
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@@ -663,7 +825,10 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
static void acpi_charger_remove(struct acpi_sbs *sbs)
{
-
+#ifdef ENABLE_POWER_SUPPLY
+ if (sbs->charger.dev)
+ power_supply_unregister(&sbs->charger);
+#endif
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
}
@@ -680,6 +845,9 @@ void acpi_sbs_callback(void *context)
acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
ACPI_SBS_NOTIFY_STATUS,
sbs->charger_present);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
+#endif
}
if (sbs->manager_present) {
for (id = 0; id < MAX_SBS_BAT; ++id) {
@@ -694,6 +862,9 @@ void acpi_sbs_callback(void *context)
bat->name,
ACPI_SBS_NOTIFY_STATUS,
bat->present);
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
}
}
@@ -782,45 +953,43 @@ static int acpi_sbs_resume(struct acpi_device *device)
return 0;
}
+static struct acpi_driver acpi_sbs_driver = {
+ .name = "sbs",
+ .class = ACPI_SBS_CLASS,
+ .ids = sbs_device_ids,
+ .ops = {
+ .add = acpi_sbs_add,
+ .remove = acpi_sbs_remove,
+ .resume = acpi_sbs_resume,
+ },
+};
+
static int __init acpi_sbs_init(void)
{
int result = 0;
if (acpi_disabled)
return -ENODEV;
-
acpi_ac_dir = acpi_lock_ac_dir();
- if (!acpi_ac_dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_lock_ac_dir() failed"));
+ if (!acpi_ac_dir)
return -ENODEV;
- }
-
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_lock_battery_dir() failed"));
acpi_sbs_rmdirs();
return -ENODEV;
}
-
result = acpi_bus_register_driver(&acpi_sbs_driver);
if (result < 0) {
- ACPI_EXCEPTION((AE_INFO, AE_ERROR,
- "acpi_bus_register_driver() failed"));
acpi_sbs_rmdirs();
return -ENODEV;
}
-
return 0;
}
static void __exit acpi_sbs_exit(void)
{
acpi_bus_unregister_driver(&acpi_sbs_driver);
-
acpi_sbs_rmdirs();
-
return;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 14/32] ACPI: SBS: Add ACPI_PROCFS around procfs handling code.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <aystarik@gmail.com>
Make procfs support optional under ACPI_PROCFS
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 74abfd3..21a65f9 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -29,9 +29,11 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+#endif
#include <linux/acpi.h>
#include <linux/timer.h>
@@ -91,7 +93,9 @@ struct acpi_battery {
struct power_supply bat;
#endif
struct acpi_sbs *sbs;
+#ifdef CONFIG_ACPI_PROCFS
struct proc_dir_entry *proc_entry;
+#endif
unsigned long update_time;
char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
@@ -125,7 +129,9 @@ struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
+#ifdef CONFIG_ACPI_PROCFS
struct proc_dir_entry *charger_entry;
+#endif
struct acpi_battery battery[MAX_SBS_BAT];
u8 batteries_supported:4;
u8 manager_present:1;
@@ -389,6 +395,8 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
return result;
}
+#ifdef CONFIG_ACPI_PROCFS
+
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
@@ -425,6 +433,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery)
return ret;
}
+#endif
+
static int acpi_ac_get_present(struct acpi_sbs *sbs)
{
int result;
@@ -441,6 +451,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
/* Generic Routines */
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
@@ -714,6 +725,8 @@ static struct file_operations acpi_ac_state_fops = {
.owner = THIS_MODULE,
};
+#endif
+
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -759,10 +772,12 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
return result;
sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
+#ifdef CONFIG_ACPI_PROCFS
acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
+#endif
#ifdef ENABLE_POWER_SUPPLY
battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
@@ -790,10 +805,12 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
if (sbs->battery[id].bat.dev)
power_supply_unregister(&sbs->battery[id].bat);
#endif
+#ifdef CONFIG_ACPI_PROCFS
if (sbs->battery[id].proc_entry) {
acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
}
+#endif
}
static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -803,11 +820,13 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
result = acpi_ac_get_present(sbs);
if (result)
goto end;
+#ifdef CONFIG_ACPI_PROCFS
result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
ACPI_AC_DIR_NAME, NULL,
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
+#endif
#ifdef ENABLE_POWER_SUPPLY
sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
@@ -829,8 +848,10 @@ static void acpi_charger_remove(struct acpi_sbs *sbs)
if (sbs->charger.dev)
power_supply_unregister(&sbs->charger);
#endif
+#ifdef CONFIG_ACPI_PROCFS
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
+#endif
}
void acpi_sbs_callback(void *context)
@@ -933,6 +954,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
static void acpi_sbs_rmdirs(void)
{
+#ifdef CONFIG_ACPI_PROCFS
if (acpi_ac_dir) {
acpi_unlock_ac_dir(acpi_ac_dir);
acpi_ac_dir = NULL;
@@ -941,6 +963,7 @@ static void acpi_sbs_rmdirs(void)
acpi_unlock_battery_dir(acpi_battery_dir);
acpi_battery_dir = NULL;
}
+#endif
}
static int acpi_sbs_resume(struct acpi_device *device)
@@ -970,6 +993,7 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
@@ -978,6 +1002,7 @@ static int __init acpi_sbs_init(void)
acpi_sbs_rmdirs();
return -ENODEV;
}
+#endif
result = acpi_bus_register_driver(&acpi_sbs_driver);
if (result < 0) {
acpi_sbs_rmdirs();
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 14/32] ACPI: SBS: Add ACPI_PROCFS around procfs handling code.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <aystarik@gmail.com>
Make procfs support optional under ACPI_PROCFS
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 74abfd3..21a65f9 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -29,9 +29,11 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+#endif
#include <linux/acpi.h>
#include <linux/timer.h>
@@ -91,7 +93,9 @@ struct acpi_battery {
struct power_supply bat;
#endif
struct acpi_sbs *sbs;
+#ifdef CONFIG_ACPI_PROCFS
struct proc_dir_entry *proc_entry;
+#endif
unsigned long update_time;
char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
@@ -125,7 +129,9 @@ struct acpi_sbs {
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
+#ifdef CONFIG_ACPI_PROCFS
struct proc_dir_entry *charger_entry;
+#endif
struct acpi_battery battery[MAX_SBS_BAT];
u8 batteries_supported:4;
u8 manager_present:1;
@@ -389,6 +395,8 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
return result;
}
+#ifdef CONFIG_ACPI_PROCFS
+
static int acpi_battery_get_alarm(struct acpi_battery *battery)
{
return acpi_smbus_read(battery->sbs->hc, SMBUS_READ_WORD,
@@ -425,6 +433,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery)
return ret;
}
+#endif
+
static int acpi_ac_get_present(struct acpi_sbs *sbs)
{
int result;
@@ -441,6 +451,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
/* Generic Routines */
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
@@ -714,6 +725,8 @@ static struct file_operations acpi_ac_state_fops = {
.owner = THIS_MODULE,
};
+#endif
+
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -759,10 +772,12 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
return result;
sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
+#ifdef CONFIG_ACPI_PROCFS
acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
+#endif
#ifdef ENABLE_POWER_SUPPLY
battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
@@ -790,10 +805,12 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
if (sbs->battery[id].bat.dev)
power_supply_unregister(&sbs->battery[id].bat);
#endif
+#ifdef CONFIG_ACPI_PROCFS
if (sbs->battery[id].proc_entry) {
acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
acpi_battery_dir);
}
+#endif
}
static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -803,11 +820,13 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
result = acpi_ac_get_present(sbs);
if (result)
goto end;
+#ifdef CONFIG_ACPI_PROCFS
result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
ACPI_AC_DIR_NAME, NULL,
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
+#endif
#ifdef ENABLE_POWER_SUPPLY
sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
@@ -829,8 +848,10 @@ static void acpi_charger_remove(struct acpi_sbs *sbs)
if (sbs->charger.dev)
power_supply_unregister(&sbs->charger);
#endif
+#ifdef CONFIG_ACPI_PROCFS
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
+#endif
}
void acpi_sbs_callback(void *context)
@@ -933,6 +954,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
static void acpi_sbs_rmdirs(void)
{
+#ifdef CONFIG_ACPI_PROCFS
if (acpi_ac_dir) {
acpi_unlock_ac_dir(acpi_ac_dir);
acpi_ac_dir = NULL;
@@ -941,6 +963,7 @@ static void acpi_sbs_rmdirs(void)
acpi_unlock_battery_dir(acpi_battery_dir);
acpi_battery_dir = NULL;
}
+#endif
}
static int acpi_sbs_resume(struct acpi_device *device)
@@ -970,6 +993,7 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
@@ -978,6 +1002,7 @@ static int __init acpi_sbs_init(void)
acpi_sbs_rmdirs();
return -ENODEV;
}
+#endif
result = acpi_bus_register_driver(&acpi_sbs_driver);
if (result < 0) {
acpi_sbs_rmdirs();
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 15/32] ACPI: SBS: Add sysfs alarm
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 21a65f9..3f249df 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -447,6 +447,40 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
return result;
}
+#ifdef ENABLE_POWER_SUPPLY
+
+static ssize_t acpi_battery_alarm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ acpi_battery_get_alarm(battery);
+ return sprintf(buf, "%d\n", battery->alarm_capacity *
+ acpi_battery_scale(battery) * 1000);
+}
+
+static ssize_t acpi_battery_alarm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long x;
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ if (sscanf(buf, "%ld\n", &x) == 1)
+ battery->alarm_capacity = x /
+ (1000 * acpi_battery_scale(battery));
+ if (battery->present)
+ acpi_battery_set_alarm(battery);
+ return count;
+}
+
+static struct device_attribute alarm_attr = {
+ .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},
+ .show = acpi_battery_alarm_show,
+ .store = acpi_battery_alarm_store,
+};
+
+#endif
+
/* --------------------------------------------------------------------------
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
@@ -792,6 +826,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
}
battery->bat.get_property = acpi_sbs_battery_get_property;
result = power_supply_register(&sbs->device->dev, &battery->bat);
+ device_create_file(battery->bat.dev, &alarm_attr);
#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
@@ -803,6 +838,7 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
#ifdef ENABLE_POWER_SUPPLY
if (sbs->battery[id].bat.dev)
+ device_remove_file(sbs->battery[id].bat.dev, &alarm_attr);
power_supply_unregister(&sbs->battery[id].bat);
#endif
#ifdef CONFIG_ACPI_PROCFS
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 15/32] ACPI: SBS: Add sysfs alarm
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sbs.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 21a65f9..3f249df 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -447,6 +447,40 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
return result;
}
+#ifdef ENABLE_POWER_SUPPLY
+
+static ssize_t acpi_battery_alarm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ acpi_battery_get_alarm(battery);
+ return sprintf(buf, "%d\n", battery->alarm_capacity *
+ acpi_battery_scale(battery) * 1000);
+}
+
+static ssize_t acpi_battery_alarm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long x;
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ if (sscanf(buf, "%ld\n", &x) == 1)
+ battery->alarm_capacity = x /
+ (1000 * acpi_battery_scale(battery));
+ if (battery->present)
+ acpi_battery_set_alarm(battery);
+ return count;
+}
+
+static struct device_attribute alarm_attr = {
+ .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},
+ .show = acpi_battery_alarm_show,
+ .store = acpi_battery_alarm_store,
+};
+
+#endif
+
/* --------------------------------------------------------------------------
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
@@ -792,6 +826,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
}
battery->bat.get_property = acpi_sbs_battery_get_property;
result = power_supply_register(&sbs->device->dev, &battery->bat);
+ device_create_file(battery->bat.dev, &alarm_attr);
#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
@@ -803,6 +838,7 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
#ifdef ENABLE_POWER_SUPPLY
if (sbs->battery[id].bat.dev)
+ device_remove_file(sbs->battery[id].bat.dev, &alarm_attr);
power_supply_unregister(&sbs->battery[id].bat);
#endif
#ifdef CONFIG_ACPI_PROCFS
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 16/32] ACPI: Thermal: Drop concurrent thermal checks
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Fix for #3686, where get_temperature() may cause thermal notify, which
causes one more get_temperature().
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/thermal.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 15d5fdc..69ec73b 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -195,6 +195,7 @@ struct acpi_thermal {
struct acpi_thermal_trips trips;
struct acpi_handle_list devices;
struct timer_list timer;
+ struct mutex lock;
};
static const struct file_operations acpi_thermal_state_fops = {
@@ -721,11 +722,15 @@ static void acpi_thermal_check(void *data)
return;
}
+ /* Check if someone else is already running */
+ if (!mutex_trylock(&tz->lock))
+ return;
+
state = tz->state;
result = acpi_thermal_get_temperature(tz);
if (result)
- return;
+ goto unlock;
memset(&tz->state, 0, sizeof(tz->state));
@@ -816,8 +821,8 @@ static void acpi_thermal_check(void *data)
add_timer(&(tz->timer));
}
}
-
- return;
+ unlock:
+ mutex_unlock(&tz->lock);
}
/* --------------------------------------------------------------------------
@@ -1254,7 +1259,7 @@ static int acpi_thermal_add(struct acpi_device *device)
strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
acpi_driver_data(device) = tz;
-
+ mutex_init(&tz->lock);
result = acpi_thermal_get_info(tz);
if (result)
goto end;
@@ -1324,7 +1329,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
}
acpi_thermal_remove_fs(device);
-
+ mutex_destroy(&tz->lock);
kfree(tz);
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 16/32] ACPI: Thermal: Drop concurrent thermal checks
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Fix for #3686, where get_temperature() may cause thermal notify, which
causes one more get_temperature().
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/thermal.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 15d5fdc..69ec73b 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -195,6 +195,7 @@ struct acpi_thermal {
struct acpi_thermal_trips trips;
struct acpi_handle_list devices;
struct timer_list timer;
+ struct mutex lock;
};
static const struct file_operations acpi_thermal_state_fops = {
@@ -721,11 +722,15 @@ static void acpi_thermal_check(void *data)
return;
}
+ /* Check if someone else is already running */
+ if (!mutex_trylock(&tz->lock))
+ return;
+
state = tz->state;
result = acpi_thermal_get_temperature(tz);
if (result)
- return;
+ goto unlock;
memset(&tz->state, 0, sizeof(tz->state));
@@ -816,8 +821,8 @@ static void acpi_thermal_check(void *data)
add_timer(&(tz->timer));
}
}
-
- return;
+ unlock:
+ mutex_unlock(&tz->lock);
}
/* --------------------------------------------------------------------------
@@ -1254,7 +1259,7 @@ static int acpi_thermal_add(struct acpi_device *device)
strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
acpi_driver_data(device) = tz;
-
+ mutex_init(&tz->lock);
result = acpi_thermal_get_info(tz);
if (result)
goto end;
@@ -1324,7 +1329,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
}
acpi_thermal_remove_fs(device);
-
+ mutex_destroy(&tz->lock);
kfree(tz);
return 0;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 17/32] ACPI: video: Don't call absent methods
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Ryan May, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ryan May <rmay@ou.edu>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/video.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3c9bb85..83aa41c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -409,14 +409,16 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
static int
acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
{
- int status;
+ int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
arg0.integer.value = level;
- status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
-
+ if (device->cap._BCM)
+ status = acpi_evaluate_object(device->dev->handle, "_BCM",
+ &args, NULL);
+ device->brightness->curr = level;
printk(KERN_DEBUG "set_level status: %x\n", status);
return status;
}
@@ -425,11 +427,11 @@ static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
unsigned long *level)
{
- int status;
-
- status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, level);
-
- return status;
+ if (device->cap._BQC)
+ return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL,
+ level);
+ *level = device->brightness->curr;
+ return AE_OK;
}
static int
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 17/32] ACPI: video: Don't call absent methods
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Ryan May, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ryan May <rmay@ou.edu>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/video.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3c9bb85..83aa41c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -409,14 +409,16 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
static int
acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
{
- int status;
+ int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
arg0.integer.value = level;
- status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
-
+ if (device->cap._BCM)
+ status = acpi_evaluate_object(device->dev->handle, "_BCM",
+ &args, NULL);
+ device->brightness->curr = level;
printk(KERN_DEBUG "set_level status: %x\n", status);
return status;
}
@@ -425,11 +427,11 @@ static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
unsigned long *level)
{
- int status;
-
- status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, level);
-
- return status;
+ if (device->cap._BQC)
+ return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL,
+ level);
+ *level = device->brightness->curr;
+ return AE_OK;
}
static int
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 18/32] ACPI: VIDEO: Adjust current level to closest available one.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/video.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 83aa41c..8a60a3d 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1636,9 +1636,20 @@ static int
acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event)
{
- int min, max, min_above, max_below, i, l;
+ int min, max, min_above, max_below, i, l, delta = 255;
max = max_below = 0;
min = min_above = 255;
+ /* Find closest level to level_current */
+ for (i = 0; i < device->brightness->count; i++) {
+ l = device->brightness->levels[i];
+ if (abs(l - level_current) < abs(delta)) {
+ delta = l - level_current;
+ if (!delta)
+ break;
+ }
+ }
+ /* Ajust level_current to closest available level */
+ level_current += delta;
for (i = 0; i < device->brightness->count; i++) {
l = device->brightness->levels[i];
if (l < min)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 18/32] ACPI: VIDEO: Adjust current level to closest available one.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/video.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 83aa41c..8a60a3d 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1636,9 +1636,20 @@ static int
acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event)
{
- int min, max, min_above, max_below, i, l;
+ int min, max, min_above, max_below, i, l, delta = 255;
max = max_below = 0;
min = min_above = 255;
+ /* Find closest level to level_current */
+ for (i = 0; i < device->brightness->count; i++) {
+ l = device->brightness->levels[i];
+ if (abs(l - level_current) < abs(delta)) {
+ delta = l - level_current;
+ if (!delta)
+ break;
+ }
+ }
+ /* Ajust level_current to closest available level */
+ level_current += delta;
for (i = 0; i < device->brightness->count; i++) {
l = device->brightness->levels[i];
if (l < min)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 19/32] ACPI: EC: Drop ECDT-based boot_ec as soon as we find DSDT-based one.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
ASUS notebooks have numerous problems with EC initialization
This patch tries to work around three known issues reported
in bugzilla 8598, 8709 and 8909/8919.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ec.c | 90 +++++++++++++++++++++++------------------------------
1 files changed, 39 insertions(+), 51 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f7935a..9cd7997 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -121,6 +121,7 @@ static struct acpi_ec {
atomic_t event_count;
wait_queue_head_t wait;
struct list_head list;
+ u8 handlers_installed;
} *boot_ec, *first_ec;
/* --------------------------------------------------------------------------
@@ -680,32 +681,50 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe);
if (ACPI_FAILURE(status))
return status;
-
/* Find and register all query methods */
acpi_walk_namespace(ACPI_TYPE_METHOD, handle, 1,
acpi_ec_register_query_methods, ec, NULL);
-
/* Use the global lock for all EC transactions? */
acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);
-
ec->handle = handle;
-
- printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
- ec->gpe, ec->command_addr, ec->data_addr);
-
return AE_CTRL_TERMINATE;
}
+static void ec_remove_handlers(struct acpi_ec *ec)
+{
+ if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
+ ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
+ printk(KERN_ERR PREFIX "failed to remove space handler\n");
+ if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
+ &acpi_ec_gpe_handler)))
+ printk(KERN_ERR PREFIX "failed to remove gpe handler\n");
+ ec->handlers_installed = 0;
+}
+
static int acpi_ec_add(struct acpi_device *device)
{
struct acpi_ec *ec = NULL;
if (!device)
return -EINVAL;
-
strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_EC_CLASS);
+ /* Check for boot EC */
+ if (boot_ec) {
+ if (boot_ec->handle == device->handle) {
+ /* Pre-loaded EC from DSDT, just move pointer */
+ ec = boot_ec;
+ boot_ec = NULL;
+ goto end;
+ } else if (boot_ec->handle == ACPI_ROOT_OBJECT) {
+ /* ECDT-based EC, time to shut it down */
+ ec_remove_handlers(boot_ec);
+ kfree(boot_ec);
+ first_ec = boot_ec = NULL;
+ }
+ }
+
ec = make_acpi_ec();
if (!ec)
return -ENOMEM;
@@ -715,25 +734,14 @@ static int acpi_ec_add(struct acpi_device *device)
kfree(ec);
return -EINVAL;
}
-
- /* Check if we found the boot EC */
- if (boot_ec) {
- if (boot_ec->gpe == ec->gpe) {
- /* We might have incorrect info for GL at boot time */
- mutex_lock(&boot_ec->lock);
- boot_ec->global_lock = ec->global_lock;
- /* Copy handlers from new ec into boot ec */
- list_splice(&ec->list, &boot_ec->list);
- mutex_unlock(&boot_ec->lock);
- kfree(ec);
- ec = boot_ec;
- }
- } else
- first_ec = ec;
ec->handle = device->handle;
+ end:
+ if (!first_ec)
+ first_ec = ec;
acpi_driver_data(device) = ec;
-
acpi_ec_add_fs(device);
+ printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
+ ec->gpe, ec->command_addr, ec->data_addr);
return 0;
}
@@ -756,10 +764,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
acpi_driver_data(device) = NULL;
if (ec == first_ec)
first_ec = NULL;
-
- /* Don't touch boot EC */
- if (boot_ec != ec)
- kfree(ec);
+ kfree(ec);
return 0;
}
@@ -789,6 +794,8 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
static int ec_install_handlers(struct acpi_ec *ec)
{
acpi_status status;
+ if (ec->handlers_installed)
+ return 0;
status = acpi_install_gpe_handler(NULL, ec->gpe,
ACPI_GPE_EDGE_TRIGGERED,
&acpi_ec_gpe_handler, ec);
@@ -807,6 +814,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
return -ENODEV;
}
+ ec->handlers_installed = 1;
return 0;
}
@@ -823,41 +831,22 @@ static int acpi_ec_start(struct acpi_device *device)
if (!ec)
return -EINVAL;
- /* Boot EC is already working */
- if (ec != boot_ec)
- ret = ec_install_handlers(ec);
+ ret = ec_install_handlers(ec);
/* EC is fully operational, allow queries */
atomic_set(&ec->query_pending, 0);
-
return ret;
}
static int acpi_ec_stop(struct acpi_device *device, int type)
{
- acpi_status status;
struct acpi_ec *ec;
-
if (!device)
return -EINVAL;
-
ec = acpi_driver_data(device);
if (!ec)
return -EINVAL;
-
- /* Don't touch boot EC */
- if (ec == boot_ec)
- return 0;
-
- status = acpi_remove_address_space_handler(ec->handle,
- ACPI_ADR_SPACE_EC,
- &acpi_ec_space_handler);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- status = acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ ec_remove_handlers(ec);
return 0;
}
@@ -877,7 +866,7 @@ int __init acpi_ec_ecdt_probe(void)
status = acpi_get_table(ACPI_SIG_ECDT, 1,
(struct acpi_table_header **)&ecdt_ptr);
if (ACPI_SUCCESS(status)) {
- printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n\n");
+ printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n");
boot_ec->command_addr = ecdt_ptr->control.address;
boot_ec->data_addr = ecdt_ptr->data.address;
boot_ec->gpe = ecdt_ptr->gpe;
@@ -899,7 +888,6 @@ int __init acpi_ec_ecdt_probe(void)
error:
kfree(boot_ec);
boot_ec = NULL;
-
return -ENODEV;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 19/32] ACPI: EC: Drop ECDT-based boot_ec as soon as we find DSDT-based one.
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
ASUS notebooks have numerous problems with EC initialization
This patch tries to work around three known issues reported
in bugzilla 8598, 8709 and 8909/8919.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/ec.c | 90 +++++++++++++++++++++++------------------------------
1 files changed, 39 insertions(+), 51 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f7935a..9cd7997 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -121,6 +121,7 @@ static struct acpi_ec {
atomic_t event_count;
wait_queue_head_t wait;
struct list_head list;
+ u8 handlers_installed;
} *boot_ec, *first_ec;
/* --------------------------------------------------------------------------
@@ -680,32 +681,50 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe);
if (ACPI_FAILURE(status))
return status;
-
/* Find and register all query methods */
acpi_walk_namespace(ACPI_TYPE_METHOD, handle, 1,
acpi_ec_register_query_methods, ec, NULL);
-
/* Use the global lock for all EC transactions? */
acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock);
-
ec->handle = handle;
-
- printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
- ec->gpe, ec->command_addr, ec->data_addr);
-
return AE_CTRL_TERMINATE;
}
+static void ec_remove_handlers(struct acpi_ec *ec)
+{
+ if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
+ ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
+ printk(KERN_ERR PREFIX "failed to remove space handler\n");
+ if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
+ &acpi_ec_gpe_handler)))
+ printk(KERN_ERR PREFIX "failed to remove gpe handler\n");
+ ec->handlers_installed = 0;
+}
+
static int acpi_ec_add(struct acpi_device *device)
{
struct acpi_ec *ec = NULL;
if (!device)
return -EINVAL;
-
strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_EC_CLASS);
+ /* Check for boot EC */
+ if (boot_ec) {
+ if (boot_ec->handle == device->handle) {
+ /* Pre-loaded EC from DSDT, just move pointer */
+ ec = boot_ec;
+ boot_ec = NULL;
+ goto end;
+ } else if (boot_ec->handle == ACPI_ROOT_OBJECT) {
+ /* ECDT-based EC, time to shut it down */
+ ec_remove_handlers(boot_ec);
+ kfree(boot_ec);
+ first_ec = boot_ec = NULL;
+ }
+ }
+
ec = make_acpi_ec();
if (!ec)
return -ENOMEM;
@@ -715,25 +734,14 @@ static int acpi_ec_add(struct acpi_device *device)
kfree(ec);
return -EINVAL;
}
-
- /* Check if we found the boot EC */
- if (boot_ec) {
- if (boot_ec->gpe == ec->gpe) {
- /* We might have incorrect info for GL at boot time */
- mutex_lock(&boot_ec->lock);
- boot_ec->global_lock = ec->global_lock;
- /* Copy handlers from new ec into boot ec */
- list_splice(&ec->list, &boot_ec->list);
- mutex_unlock(&boot_ec->lock);
- kfree(ec);
- ec = boot_ec;
- }
- } else
- first_ec = ec;
ec->handle = device->handle;
+ end:
+ if (!first_ec)
+ first_ec = ec;
acpi_driver_data(device) = ec;
-
acpi_ec_add_fs(device);
+ printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
+ ec->gpe, ec->command_addr, ec->data_addr);
return 0;
}
@@ -756,10 +764,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
acpi_driver_data(device) = NULL;
if (ec == first_ec)
first_ec = NULL;
-
- /* Don't touch boot EC */
- if (boot_ec != ec)
- kfree(ec);
+ kfree(ec);
return 0;
}
@@ -789,6 +794,8 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
static int ec_install_handlers(struct acpi_ec *ec)
{
acpi_status status;
+ if (ec->handlers_installed)
+ return 0;
status = acpi_install_gpe_handler(NULL, ec->gpe,
ACPI_GPE_EDGE_TRIGGERED,
&acpi_ec_gpe_handler, ec);
@@ -807,6 +814,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
return -ENODEV;
}
+ ec->handlers_installed = 1;
return 0;
}
@@ -823,41 +831,22 @@ static int acpi_ec_start(struct acpi_device *device)
if (!ec)
return -EINVAL;
- /* Boot EC is already working */
- if (ec != boot_ec)
- ret = ec_install_handlers(ec);
+ ret = ec_install_handlers(ec);
/* EC is fully operational, allow queries */
atomic_set(&ec->query_pending, 0);
-
return ret;
}
static int acpi_ec_stop(struct acpi_device *device, int type)
{
- acpi_status status;
struct acpi_ec *ec;
-
if (!device)
return -EINVAL;
-
ec = acpi_driver_data(device);
if (!ec)
return -EINVAL;
-
- /* Don't touch boot EC */
- if (ec == boot_ec)
- return 0;
-
- status = acpi_remove_address_space_handler(ec->handle,
- ACPI_ADR_SPACE_EC,
- &acpi_ec_space_handler);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- status = acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ ec_remove_handlers(ec);
return 0;
}
@@ -877,7 +866,7 @@ int __init acpi_ec_ecdt_probe(void)
status = acpi_get_table(ACPI_SIG_ECDT, 1,
(struct acpi_table_header **)&ecdt_ptr);
if (ACPI_SUCCESS(status)) {
- printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n\n");
+ printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n");
boot_ec->command_addr = ecdt_ptr->control.address;
boot_ec->data_addr = ecdt_ptr->data.address;
boot_ec->gpe = ecdt_ptr->gpe;
@@ -899,7 +888,6 @@ int __init acpi_ec_ecdt_probe(void)
error:
kfree(boot_ec);
boot_ec = NULL;
-
return -ENODEV;
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 20/32] sony-laptop/thinkpad-acpi: fix INPUT=n build
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Andreas Herrmann, Len Brown
From: Andreas Herrmann <aherrman@arcor.de>
Build errors if CONFIG_SONY_LAPTOP && !INPUT or
if CONFIG_THINKPAD_ACPI && !INPUT:
LD vmlinux
...
drivers/built-in.o: In function `sony_laptop_remove_input':
sony-laptop.c:(.text+0x768fb): undefined reference to `input_unregister_device'
...
drivers/built-in.o: In function `thinkpad_acpi_module_exit':
thinkpad_acpi.c:(.text+0x78c1b): undefined reference to `input_free_device'
...
Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/Kconfig | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 73e248f..7b580c3 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -134,6 +134,7 @@ config SONY_LAPTOP
tristate "Sony Laptop Extras"
depends on X86 && ACPI
select BACKLIGHT_CLASS_DEVICE
+ depends on INPUT
---help---
This mini-driver drives the SNC and SPIC devices present in the ACPI
BIOS of the Sony Vaio laptops.
@@ -156,6 +157,7 @@ config THINKPAD_ACPI
select BACKLIGHT_CLASS_DEVICE
select HWMON
select NVRAM
+ depends on INPUT
---help---
This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
support for Fn-Fx key combinations, Bluetooth control, video
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 20/32] sony-laptop/thinkpad-acpi: fix INPUT=n build
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Andreas Herrmann, Len Brown
From: Andreas Herrmann <aherrman@arcor.de>
Build errors if CONFIG_SONY_LAPTOP && !INPUT or
if CONFIG_THINKPAD_ACPI && !INPUT:
LD vmlinux
...
drivers/built-in.o: In function `sony_laptop_remove_input':
sony-laptop.c:(.text+0x768fb): undefined reference to `input_unregister_device'
...
drivers/built-in.o: In function `thinkpad_acpi_module_exit':
thinkpad_acpi.c:(.text+0x78c1b): undefined reference to `input_free_device'
...
Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/Kconfig | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 73e248f..7b580c3 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -134,6 +134,7 @@ config SONY_LAPTOP
tristate "Sony Laptop Extras"
depends on X86 && ACPI
select BACKLIGHT_CLASS_DEVICE
+ depends on INPUT
---help---
This mini-driver drives the SNC and SPIC devices present in the ACPI
BIOS of the Sony Vaio laptops.
@@ -156,6 +157,7 @@ config THINKPAD_ACPI
select BACKLIGHT_CLASS_DEVICE
select HWMON
select NVRAM
+ depends on INPUT
---help---
This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
support for Fn-Fx key combinations, Bluetooth control, video
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 21/32] acpi_video: kernel build error if !INPUT
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Andreas Herrmann, Len Brown
From: Andreas Herrmann <aherrman@arcor.de>
Commit e9dab1960ac9746fa34eff726b81635147615a79
(ACPI video hotkey: export missing ACPI video hotkey events via input layer)
exports ACPI video hotkey events via input layer. But this breaks kernel
build if ACPI_VIDEO && !INPUT:
LD .tmp_vmlinux1
drivers/built-in.o: In function `acpi_video_bus_remove':
drivers/acpi/video.c:2007: undefined reference to `input_unregister_device'
...
Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4875f01..9685b75 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -117,6 +117,7 @@ config ACPI_BUTTON
config ACPI_VIDEO
tristate "Video"
depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
+ depends on INPUT
help
This driver implement the ACPI Extensions For Display Adapters
for integrated graphics devices on motherboard, as specified in
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 21/32] acpi_video: kernel build error if !INPUT
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Andreas Herrmann, Len Brown
From: Andreas Herrmann <aherrman@arcor.de>
Commit e9dab1960ac9746fa34eff726b81635147615a79
(ACPI video hotkey: export missing ACPI video hotkey events via input layer)
exports ACPI video hotkey events via input layer. But this breaks kernel
build if ACPI_VIDEO && !INPUT:
LD .tmp_vmlinux1
drivers/built-in.o: In function `acpi_video_bus_remove':
drivers/acpi/video.c:2007: undefined reference to `input_unregister_device'
...
Signed-off-by: Andreas Herrmann <aherrman@arcor.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4875f01..9685b75 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -117,6 +117,7 @@ config ACPI_BUTTON
config ACPI_VIDEO
tristate "Video"
depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
+ depends on INPUT
help
This driver implement the ACPI Extensions For Display Adapters
for integrated graphics devices on motherboard, as specified in
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 22/32] ACPI: Battery: Add sysfs support
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 201 ++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 179 insertions(+), 22 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index db725bf..b77180a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -30,13 +30,21 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/jiffies.h>
+
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+#endif
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
#define ACPI_BATTERY_COMPONENT 0x00040000
@@ -58,9 +66,19 @@ static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
+#ifdef CONFIG_ACPI_PROCFS
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
+enum acpi_battery_files {
+ info_tag = 0,
+ state_tag,
+ alarm_tag,
+ ACPI_BATTERY_NUMFILES,
+};
+
+#endif
+
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
@@ -68,22 +86,19 @@ static const struct acpi_device_id battery_device_ids[] = {
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
-enum acpi_battery_files {
- info_tag = 0,
- state_tag,
- alarm_tag,
- ACPI_BATTERY_NUMFILES,
-};
struct acpi_battery {
struct mutex lock;
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply bat;
+#endif
struct acpi_device *device;
unsigned long update_time;
- int present_rate;
- int remaining_capacity;
- int present_voltage;
+ int current_now;
+ int capacity_now;
+ int voltage_now;
int design_capacity;
- int last_full_capacity;
+ int full_charge_capacity;
int technology;
int design_voltage;
int design_capacity_warning;
@@ -100,15 +115,119 @@ struct acpi_battery {
u8 alarm_present;
};
+#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
+
inline int acpi_battery_present(struct acpi_battery *battery)
{
return battery->device->status.battery_present;
}
+#ifdef ENABLE_POWER_SUPPLY
+static int acpi_battery_technology(struct acpi_battery *battery)
+{
+ if (!strcasecmp("NiCd", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_NiCd;
+ if (!strcasecmp("NiMH", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_NiMH;
+ if (!strcasecmp("LION", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_LION;
+ if (!strcasecmp("LiP", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_LIPO;
+ return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+}
+
+static int acpi_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_battery *battery = to_acpi_battery(psy);
+
+ if ((!acpi_battery_present(battery)) &&
+ psp != POWER_SUPPLY_PROP_PRESENT)
+ return -ENODEV;
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ if (battery->state & 0x01)
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ else if (battery->state & 0x02)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else if (battery->state == 0)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = acpi_battery_present(battery);
+ break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = acpi_battery_technology(battery);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = battery->design_voltage * 1000;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery->voltage_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = battery->current_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+ val->intval = battery->design_capacity * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL:
+ case POWER_SUPPLY_PROP_ENERGY_FULL:
+ val->intval = battery->full_charge_capacity * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_NOW:
+ case POWER_SUPPLY_PROP_ENERGY_NOW:
+ val->intval = battery->capacity_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = battery->model_number;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = battery->oem_info;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property charge_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static enum power_supply_property energy_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
+ POWER_SUPPLY_PROP_ENERGY_FULL,
+ POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+#endif
+
+#ifdef CONFIG_ACPI_PROCFS
inline char *acpi_battery_units(struct acpi_battery *battery)
{
return (battery->power_unit)?"mA":"mW";
}
+#endif
/* --------------------------------------------------------------------------
Battery Management
@@ -120,15 +239,15 @@ struct acpi_offsets {
static struct acpi_offsets state_offsets[] = {
{offsetof(struct acpi_battery, state), 0},
- {offsetof(struct acpi_battery, present_rate), 0},
- {offsetof(struct acpi_battery, remaining_capacity), 0},
- {offsetof(struct acpi_battery, present_voltage), 0},
+ {offsetof(struct acpi_battery, current_now), 0},
+ {offsetof(struct acpi_battery, capacity_now), 0},
+ {offsetof(struct acpi_battery, voltage_now), 0},
};
static struct acpi_offsets info_offsets[] = {
{offsetof(struct acpi_battery, power_unit), 0},
{offsetof(struct acpi_battery, design_capacity), 0},
- {offsetof(struct acpi_battery, last_full_capacity), 0},
+ {offsetof(struct acpi_battery, full_charge_capacity), 0},
{offsetof(struct acpi_battery, technology), 0},
{offsetof(struct acpi_battery, design_voltage), 0},
{offsetof(struct acpi_battery, design_capacity_warning), 0},
@@ -285,6 +404,17 @@ static int acpi_battery_update(struct acpi_battery *battery)
result = acpi_battery_get_info(battery);
if (result)
return result;
+#ifdef ENABLE_POWER_SUPPLY
+ if (battery->power_unit) {
+ battery->bat.properties = charge_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(charge_battery_props);
+ } else {
+ battery->bat.properties = energy_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(energy_battery_props);
+ }
+#endif
acpi_battery_init_alarm(battery);
}
return acpi_battery_get_state(battery);
@@ -294,6 +424,7 @@ static int acpi_battery_update(struct acpi_battery *battery)
FS Interface (/proc)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
@@ -314,11 +445,11 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
battery->design_capacity,
acpi_battery_units(battery));
- if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- battery->last_full_capacity,
+ battery->full_charge_capacity,
acpi_battery_units(battery));
seq_printf(seq, "battery technology: %srechargeable\n",
@@ -375,22 +506,22 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
else
seq_printf(seq, "charging state: charged\n");
- if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->current_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- battery->present_rate, acpi_battery_units(battery));
+ battery->current_now, acpi_battery_units(battery));
- if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- battery->remaining_capacity, acpi_battery_units(battery));
- if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ battery->capacity_now, acpi_battery_units(battery));
+ if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- battery->present_voltage);
+ battery->voltage_now);
end:
if (result)
seq_printf(seq, "ERROR: Unable to read battery state\n");
@@ -564,6 +695,7 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
+#endif
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -581,6 +713,9 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
acpi_battery_present(battery));
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
static int acpi_battery_add(struct acpi_device *device)
@@ -599,9 +734,17 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_driver_data(device) = battery;
mutex_init(&battery->lock);
acpi_battery_update(battery);
+#ifdef CONFIG_ACPI_PROCFS
result = acpi_battery_add_fs(device);
if (result)
goto end;
+#endif
+#ifdef ENABLE_POWER_SUPPLY
+ battery->bat.name = acpi_device_bid(device);
+ battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+ battery->bat.get_property = acpi_battery_get_property;
+ result = power_supply_register(&battery->device->dev, &battery->bat);
+#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
@@ -615,7 +758,9 @@ static int acpi_battery_add(struct acpi_device *device)
device->status.battery_present ? "present" : "absent");
end:
if (result) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_remove_fs(device);
+#endif
kfree(battery);
}
return result;
@@ -632,7 +777,13 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_remove_fs(device);
+#endif
+#ifdef ENABLE_POWER_SUPPLY
+ if (battery->bat.dev)
+ power_supply_unregister(&battery->bat);
+#endif
mutex_destroy(&battery->lock);
kfree(battery);
return 0;
@@ -664,11 +815,15 @@ static int __init acpi_battery_init(void)
{
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;
+#endif
if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_battery_dir(acpi_battery_dir);
+#endif
return -ENODEV;
}
return 0;
@@ -677,7 +832,9 @@ static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_battery_dir(acpi_battery_dir);
+#endif
}
module_init(acpi_battery_init);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 22/32] ACPI: Battery: Add sysfs support
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Refer to Documentation/power_supply_class.txt for interface description.
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 201 ++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 179 insertions(+), 22 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index db725bf..b77180a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -30,13 +30,21 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/jiffies.h>
+
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
+#endif
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
+#define ENABLE_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
#define ACPI_BATTERY_COMPONENT 0x00040000
@@ -58,9 +66,19 @@ static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
+#ifdef CONFIG_ACPI_PROCFS
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
+enum acpi_battery_files {
+ info_tag = 0,
+ state_tag,
+ alarm_tag,
+ ACPI_BATTERY_NUMFILES,
+};
+
+#endif
+
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
@@ -68,22 +86,19 @@ static const struct acpi_device_id battery_device_ids[] = {
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
-enum acpi_battery_files {
- info_tag = 0,
- state_tag,
- alarm_tag,
- ACPI_BATTERY_NUMFILES,
-};
struct acpi_battery {
struct mutex lock;
+#ifdef ENABLE_POWER_SUPPLY
+ struct power_supply bat;
+#endif
struct acpi_device *device;
unsigned long update_time;
- int present_rate;
- int remaining_capacity;
- int present_voltage;
+ int current_now;
+ int capacity_now;
+ int voltage_now;
int design_capacity;
- int last_full_capacity;
+ int full_charge_capacity;
int technology;
int design_voltage;
int design_capacity_warning;
@@ -100,15 +115,119 @@ struct acpi_battery {
u8 alarm_present;
};
+#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
+
inline int acpi_battery_present(struct acpi_battery *battery)
{
return battery->device->status.battery_present;
}
+#ifdef ENABLE_POWER_SUPPLY
+static int acpi_battery_technology(struct acpi_battery *battery)
+{
+ if (!strcasecmp("NiCd", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_NiCd;
+ if (!strcasecmp("NiMH", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_NiMH;
+ if (!strcasecmp("LION", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_LION;
+ if (!strcasecmp("LiP", battery->type))
+ return POWER_SUPPLY_TECHNOLOGY_LIPO;
+ return POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+}
+
+static int acpi_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_battery *battery = to_acpi_battery(psy);
+
+ if ((!acpi_battery_present(battery)) &&
+ psp != POWER_SUPPLY_PROP_PRESENT)
+ return -ENODEV;
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ if (battery->state & 0x01)
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ else if (battery->state & 0x02)
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else if (battery->state == 0)
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = acpi_battery_present(battery);
+ break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = acpi_battery_technology(battery);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = battery->design_voltage * 1000;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery->voltage_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = battery->current_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+ val->intval = battery->design_capacity * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_FULL:
+ case POWER_SUPPLY_PROP_ENERGY_FULL:
+ val->intval = battery->full_charge_capacity * 1000;
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_NOW:
+ case POWER_SUPPLY_PROP_ENERGY_NOW:
+ val->intval = battery->capacity_now * 1000;
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = battery->model_number;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = battery->oem_info;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property charge_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static enum power_supply_property energy_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
+ POWER_SUPPLY_PROP_ENERGY_FULL,
+ POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+#endif
+
+#ifdef CONFIG_ACPI_PROCFS
inline char *acpi_battery_units(struct acpi_battery *battery)
{
return (battery->power_unit)?"mA":"mW";
}
+#endif
/* --------------------------------------------------------------------------
Battery Management
@@ -120,15 +239,15 @@ struct acpi_offsets {
static struct acpi_offsets state_offsets[] = {
{offsetof(struct acpi_battery, state), 0},
- {offsetof(struct acpi_battery, present_rate), 0},
- {offsetof(struct acpi_battery, remaining_capacity), 0},
- {offsetof(struct acpi_battery, present_voltage), 0},
+ {offsetof(struct acpi_battery, current_now), 0},
+ {offsetof(struct acpi_battery, capacity_now), 0},
+ {offsetof(struct acpi_battery, voltage_now), 0},
};
static struct acpi_offsets info_offsets[] = {
{offsetof(struct acpi_battery, power_unit), 0},
{offsetof(struct acpi_battery, design_capacity), 0},
- {offsetof(struct acpi_battery, last_full_capacity), 0},
+ {offsetof(struct acpi_battery, full_charge_capacity), 0},
{offsetof(struct acpi_battery, technology), 0},
{offsetof(struct acpi_battery, design_voltage), 0},
{offsetof(struct acpi_battery, design_capacity_warning), 0},
@@ -285,6 +404,17 @@ static int acpi_battery_update(struct acpi_battery *battery)
result = acpi_battery_get_info(battery);
if (result)
return result;
+#ifdef ENABLE_POWER_SUPPLY
+ if (battery->power_unit) {
+ battery->bat.properties = charge_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(charge_battery_props);
+ } else {
+ battery->bat.properties = energy_battery_props;
+ battery->bat.num_properties =
+ ARRAY_SIZE(energy_battery_props);
+ }
+#endif
acpi_battery_init_alarm(battery);
}
return acpi_battery_get_state(battery);
@@ -294,6 +424,7 @@ static int acpi_battery_update(struct acpi_battery *battery)
FS Interface (/proc)
-------------------------------------------------------------------------- */
+#ifdef CONFIG_ACPI_PROCFS
static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_print_info(struct seq_file *seq, int result)
@@ -314,11 +445,11 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
battery->design_capacity,
acpi_battery_units(battery));
- if (battery->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- battery->last_full_capacity,
+ battery->full_charge_capacity,
acpi_battery_units(battery));
seq_printf(seq, "battery technology: %srechargeable\n",
@@ -375,22 +506,22 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
else
seq_printf(seq, "charging state: charged\n");
- if (battery->present_rate == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->current_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- battery->present_rate, acpi_battery_units(battery));
+ battery->current_now, acpi_battery_units(battery));
- if (battery->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- battery->remaining_capacity, acpi_battery_units(battery));
- if (battery->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
+ battery->capacity_now, acpi_battery_units(battery));
+ if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- battery->present_voltage);
+ battery->voltage_now);
end:
if (result)
seq_printf(seq, "ERROR: Unable to read battery state\n");
@@ -564,6 +695,7 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
+#endif
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -581,6 +713,9 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
acpi_battery_present(battery));
+#ifdef ENABLE_POWER_SUPPLY
+ kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
static int acpi_battery_add(struct acpi_device *device)
@@ -599,9 +734,17 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_driver_data(device) = battery;
mutex_init(&battery->lock);
acpi_battery_update(battery);
+#ifdef CONFIG_ACPI_PROCFS
result = acpi_battery_add_fs(device);
if (result)
goto end;
+#endif
+#ifdef ENABLE_POWER_SUPPLY
+ battery->bat.name = acpi_device_bid(device);
+ battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
+ battery->bat.get_property = acpi_battery_get_property;
+ result = power_supply_register(&battery->device->dev, &battery->bat);
+#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify, battery);
@@ -615,7 +758,9 @@ static int acpi_battery_add(struct acpi_device *device)
device->status.battery_present ? "present" : "absent");
end:
if (result) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_remove_fs(device);
+#endif
kfree(battery);
}
return result;
@@ -632,7 +777,13 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_remove_fs(device);
+#endif
+#ifdef ENABLE_POWER_SUPPLY
+ if (battery->bat.dev)
+ power_supply_unregister(&battery->bat);
+#endif
mutex_destroy(&battery->lock);
kfree(battery);
return 0;
@@ -664,11 +815,15 @@ static int __init acpi_battery_init(void)
{
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;
+#endif
if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_battery_dir(acpi_battery_dir);
+#endif
return -ENODEV;
}
return 0;
@@ -677,7 +832,9 @@ static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_battery_dir(acpi_battery_dir);
+#endif
}
module_init(acpi_battery_init);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 23/32] ACPI: Battery: add sysfs alarm
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 36 +++++++++++++++++++++++++++++++++++-
1 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b77180a..4864694 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -696,6 +696,37 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
}
#endif
+
+#ifdef ENABLE_POWER_SUPPLY
+
+static ssize_t acpi_battery_alarm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ return sprintf(buf, "%d\n", battery->alarm * 1000);
+}
+
+static ssize_t acpi_battery_alarm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long x;
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ if (sscanf(buf, "%ld\n", &x) == 1)
+ battery->alarm = x/1000;
+ if (acpi_battery_present(battery))
+ acpi_battery_set_alarm(battery);
+ return count;
+}
+
+static struct device_attribute alarm_attr = {
+ .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},
+ .show = acpi_battery_alarm_show,
+ .store = acpi_battery_alarm_store,
+};
+
+#endif
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -744,6 +775,7 @@ static int acpi_battery_add(struct acpi_device *device)
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
battery->bat.get_property = acpi_battery_get_property;
result = power_supply_register(&battery->device->dev, &battery->bat);
+ result = device_create_file(battery->bat.dev, &alarm_attr);
#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
@@ -781,8 +813,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
acpi_battery_remove_fs(device);
#endif
#ifdef ENABLE_POWER_SUPPLY
- if (battery->bat.dev)
+ if (battery->bat.dev) {
+ device_remove_file(battery->bat.dev, &alarm_attr);
power_supply_unregister(&battery->bat);
+ }
#endif
mutex_destroy(&battery->lock);
kfree(battery);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 23/32] ACPI: Battery: add sysfs alarm
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikivskiy@suse.de>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/battery.c | 36 +++++++++++++++++++++++++++++++++++-
1 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b77180a..4864694 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -696,6 +696,37 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
}
#endif
+
+#ifdef ENABLE_POWER_SUPPLY
+
+static ssize_t acpi_battery_alarm_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ return sprintf(buf, "%d\n", battery->alarm * 1000);
+}
+
+static ssize_t acpi_battery_alarm_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long x;
+ struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));
+ if (sscanf(buf, "%ld\n", &x) == 1)
+ battery->alarm = x/1000;
+ if (acpi_battery_present(battery))
+ acpi_battery_set_alarm(battery);
+ return count;
+}
+
+static struct device_attribute alarm_attr = {
+ .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},
+ .show = acpi_battery_alarm_show,
+ .store = acpi_battery_alarm_store,
+};
+
+#endif
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
@@ -744,6 +775,7 @@ static int acpi_battery_add(struct acpi_device *device)
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
battery->bat.get_property = acpi_battery_get_property;
result = power_supply_register(&battery->device->dev, &battery->bat);
+ result = device_create_file(battery->bat.dev, &alarm_attr);
#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
@@ -781,8 +813,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
acpi_battery_remove_fs(device);
#endif
#ifdef ENABLE_POWER_SUPPLY
- if (battery->bat.dev)
+ if (battery->bat.dev) {
+ device_remove_file(battery->bat.dev, &alarm_attr);
power_supply_unregister(&battery->bat);
+ }
#endif
mutex_destroy(&battery->lock);
kfree(battery);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 24/32] ACPI: thinkpad-acpi: make room for more features in tp_features bitfield
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Increase tp_features to 32 bits. It is too close to running out of room.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.h | 30 +++++++++++++++---------------
1 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 082a1cb..fa64ded 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -233,22 +233,22 @@ struct ibm_init_struct {
static struct {
#ifdef CONFIG_THINKPAD_ACPI_BAY
- u16 bay_status:1;
- u16 bay_eject:1;
- u16 bay_status2:1;
- u16 bay_eject2:1;
+ u32 bay_status:1;
+ u32 bay_eject:1;
+ u32 bay_status2:1;
+ u32 bay_eject2:1;
#endif
- u16 bluetooth:1;
- u16 hotkey:1;
- u16 hotkey_mask:1;
- u16 hotkey_wlsw:1;
- u16 light:1;
- u16 light_status:1;
- u16 wan:1;
- u16 fan_ctrl_status_undef:1;
- u16 input_device_registered:1;
- u16 platform_drv_registered:1;
- u16 platform_drv_attrs_registered:1;
+ u32 bluetooth:1;
+ u32 hotkey:1;
+ u32 hotkey_mask:1;
+ u32 hotkey_wlsw:1;
+ u32 light:1;
+ u32 light_status:1;
+ u32 wan:1;
+ u32 fan_ctrl_status_undef:1;
+ u32 input_device_registered:1;
+ u32 platform_drv_registered:1;
+ u32 platform_drv_attrs_registered:1;
} tp_features;
struct thinkpad_id_data {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 24/32] ACPI: thinkpad-acpi: make room for more features in tp_features bitfield
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Increase tp_features to 32 bits. It is too close to running out of room.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.h | 30 +++++++++++++++---------------
1 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 082a1cb..fa64ded 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -233,22 +233,22 @@ struct ibm_init_struct {
static struct {
#ifdef CONFIG_THINKPAD_ACPI_BAY
- u16 bay_status:1;
- u16 bay_eject:1;
- u16 bay_status2:1;
- u16 bay_eject2:1;
+ u32 bay_status:1;
+ u32 bay_eject:1;
+ u32 bay_status2:1;
+ u32 bay_eject2:1;
#endif
- u16 bluetooth:1;
- u16 hotkey:1;
- u16 hotkey_mask:1;
- u16 hotkey_wlsw:1;
- u16 light:1;
- u16 light_status:1;
- u16 wan:1;
- u16 fan_ctrl_status_undef:1;
- u16 input_device_registered:1;
- u16 platform_drv_registered:1;
- u16 platform_drv_attrs_registered:1;
+ u32 bluetooth:1;
+ u32 hotkey:1;
+ u32 hotkey_mask:1;
+ u32 hotkey_wlsw:1;
+ u32 light:1;
+ u32 light_status:1;
+ u32 wan:1;
+ u32 fan_ctrl_status_undef:1;
+ u32 input_device_registered:1;
+ u32 platform_drv_registered:1;
+ u32 platform_drv_attrs_registered:1;
} tp_features;
struct thinkpad_id_data {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 25/32] ACPI: thinkpad-acpi: issue EV_SYNC after EV_SWITCH
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
We were missing a input_sync on the radio switch event report path. Add it.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 0222bba..8aa0f96 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1149,9 +1149,11 @@ static void tpacpi_input_send_radiosw(void)
{
int wlsw;
- if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw))
+ if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
+ input_sync(tpacpi_inputdev);
+ }
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 25/32] ACPI: thinkpad-acpi: issue EV_SYNC after EV_SWITCH
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
We were missing a input_sync on the radio switch event report path. Add it.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 0222bba..8aa0f96 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1149,9 +1149,11 @@ static void tpacpi_input_send_radiosw(void)
{
int wlsw;
- if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw))
+ if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
+ input_sync(tpacpi_inputdev);
+ }
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 26/32] ACPI: thinkpad-acpi: add mutex-based locking to input device event send path
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Protect the input device event sending path with a mutex, since hot key
input events are not atomic and require an cohesive event block to be sent
together.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 8aa0f96..0ced9d6 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -519,6 +519,7 @@ static char *next_cmd(char **cmds)
static struct platform_device *tpacpi_pdev;
static struct class_device *tpacpi_hwmon;
static struct input_dev *tpacpi_inputdev;
+static struct mutex tpacpi_inputdev_send_mutex;
static int tpacpi_resume_handler(struct platform_device *pdev)
@@ -1131,6 +1132,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
unsigned int keycode)
{
if (keycode != KEY_RESERVED) {
+ mutex_lock(&tpacpi_inputdev_send_mutex);
+
input_report_key(tpacpi_inputdev, keycode, 1);
if (keycode == KEY_UNKNOWN)
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
@@ -1142,6 +1145,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
scancode);
input_sync(tpacpi_inputdev);
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
}
}
@@ -1149,11 +1154,15 @@ static void tpacpi_input_send_radiosw(void)
{
int wlsw;
+ mutex_lock(&tpacpi_inputdev_send_mutex);
+
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
input_sync(tpacpi_inputdev);
}
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
@@ -4737,6 +4746,7 @@ static int __init thinkpad_acpi_module_init(void)
thinkpad_acpi_module_exit();
return ret;
}
+ mutex_init(&tpacpi_inputdev_send_mutex);
tpacpi_inputdev = input_allocate_device();
if (!tpacpi_inputdev) {
printk(IBM_ERR "unable to allocate input device\n");
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 26/32] ACPI: thinkpad-acpi: add mutex-based locking to input device event send path
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Protect the input device event sending path with a mutex, since hot key
input events are not atomic and require an cohesive event block to be sent
together.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 8aa0f96..0ced9d6 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -519,6 +519,7 @@ static char *next_cmd(char **cmds)
static struct platform_device *tpacpi_pdev;
static struct class_device *tpacpi_hwmon;
static struct input_dev *tpacpi_inputdev;
+static struct mutex tpacpi_inputdev_send_mutex;
static int tpacpi_resume_handler(struct platform_device *pdev)
@@ -1131,6 +1132,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
unsigned int keycode)
{
if (keycode != KEY_RESERVED) {
+ mutex_lock(&tpacpi_inputdev_send_mutex);
+
input_report_key(tpacpi_inputdev, keycode, 1);
if (keycode == KEY_UNKNOWN)
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
@@ -1142,6 +1145,8 @@ static void tpacpi_input_send_key(unsigned int scancode,
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
scancode);
input_sync(tpacpi_inputdev);
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
}
}
@@ -1149,11 +1154,15 @@ static void tpacpi_input_send_radiosw(void)
{
int wlsw;
+ mutex_lock(&tpacpi_inputdev_send_mutex);
+
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
input_report_switch(tpacpi_inputdev,
SW_RADIO, !!wlsw);
input_sync(tpacpi_inputdev);
}
+
+ mutex_unlock(&tpacpi_inputdev_send_mutex);
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
@@ -4737,6 +4746,7 @@ static int __init thinkpad_acpi_module_init(void)
thinkpad_acpi_module_exit();
return ret;
}
+ mutex_init(&tpacpi_inputdev_send_mutex);
tpacpi_inputdev = input_allocate_device();
if (!tpacpi_inputdev) {
printk(IBM_ERR "unable to allocate input device\n");
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 27/32] ACPI: thinkpad-acpi: keep track of module state
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Keep track of module state (init, running, exit). This makes it trivially
easy to avoid running any interrupt handlers, threads, or any other async
activity before we are ready, or when we want to go away.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 0ced9d6..2155139 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -117,6 +117,12 @@ IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
#define __unused __attribute__ ((unused))
+static enum {
+ TPACPI_LIFE_INIT = 0,
+ TPACPI_LIFE_RUNNING,
+ TPACPI_LIFE_EXITING,
+} tpacpi_lifecycle;
+
/****************************************************************************
****************************************************************************
*
@@ -342,6 +348,9 @@ static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
+ if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
+ return;
+
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
return;
@@ -3899,6 +3908,9 @@ static void fan_watchdog_fire(struct work_struct *ignored)
{
int rc;
+ if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
+ return;
+
printk(IBM_NOTICE "fan watchdog: enabling fan\n");
rc = fan_set_enable();
if (rc < 0) {
@@ -3919,7 +3931,8 @@ static void fan_watchdog_reset(void)
if (fan_watchdog_active)
cancel_delayed_work(&fan_watchdog_task);
- if (fan_watchdog_maxinterval > 0) {
+ if (fan_watchdog_maxinterval > 0 &&
+ tpacpi_lifecycle != TPACPI_LIFE_EXITING) {
fan_watchdog_active = 1;
if (!schedule_delayed_work(&fan_watchdog_task,
msecs_to_jiffies(fan_watchdog_maxinterval
@@ -4685,6 +4698,8 @@ static int __init thinkpad_acpi_module_init(void)
{
int ret, i;
+ tpacpi_lifecycle = TPACPI_LIFE_INIT;
+
/* Parameter checking */
if (hotkey_report_mode > 2)
return -EINVAL;
@@ -4781,6 +4796,7 @@ static int __init thinkpad_acpi_module_init(void)
tp_features.input_device_registered = 1;
}
+ tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
return 0;
}
@@ -4788,6 +4804,8 @@ static void thinkpad_acpi_module_exit(void)
{
struct ibm_struct *ibm, *itmp;
+ tpacpi_lifecycle = TPACPI_LIFE_EXITING;
+
list_for_each_entry_safe_reverse(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 27/32] ACPI: thinkpad-acpi: keep track of module state
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Keep track of module state (init, running, exit). This makes it trivially
easy to avoid running any interrupt handlers, threads, or any other async
activity before we are ready, or when we want to go away.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 0ced9d6..2155139 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -117,6 +117,12 @@ IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
#define __unused __attribute__ ((unused))
+static enum {
+ TPACPI_LIFE_INIT = 0,
+ TPACPI_LIFE_RUNNING,
+ TPACPI_LIFE_EXITING,
+} tpacpi_lifecycle;
+
/****************************************************************************
****************************************************************************
*
@@ -342,6 +348,9 @@ static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
+ if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
+ return;
+
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
return;
@@ -3899,6 +3908,9 @@ static void fan_watchdog_fire(struct work_struct *ignored)
{
int rc;
+ if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
+ return;
+
printk(IBM_NOTICE "fan watchdog: enabling fan\n");
rc = fan_set_enable();
if (rc < 0) {
@@ -3919,7 +3931,8 @@ static void fan_watchdog_reset(void)
if (fan_watchdog_active)
cancel_delayed_work(&fan_watchdog_task);
- if (fan_watchdog_maxinterval > 0) {
+ if (fan_watchdog_maxinterval > 0 &&
+ tpacpi_lifecycle != TPACPI_LIFE_EXITING) {
fan_watchdog_active = 1;
if (!schedule_delayed_work(&fan_watchdog_task,
msecs_to_jiffies(fan_watchdog_maxinterval
@@ -4685,6 +4698,8 @@ static int __init thinkpad_acpi_module_init(void)
{
int ret, i;
+ tpacpi_lifecycle = TPACPI_LIFE_INIT;
+
/* Parameter checking */
if (hotkey_report_mode > 2)
return -EINVAL;
@@ -4781,6 +4796,7 @@ static int __init thinkpad_acpi_module_init(void)
tp_features.input_device_registered = 1;
}
+ tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
return 0;
}
@@ -4788,6 +4804,8 @@ static void thinkpad_acpi_module_exit(void)
{
struct ibm_struct *ibm, *itmp;
+ tpacpi_lifecycle = TPACPI_LIFE_EXITING;
+
list_for_each_entry_safe_reverse(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 28/32] ACPI: thinkpad-acpi: check version of hot key firmware
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Check the HKEY firmware version (HKEY.MHKV handler), and refuse to load if
it is unknown. Use this instead of the presence of HKEY.DHKV to detect hot
key mask capability.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 28 +++++++++++++++++++++++-----
1 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 2155139..9a61140 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -999,6 +999,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
int res, i;
int status;
+ int hkeyv;
vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
@@ -1024,18 +1025,35 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
return res;
/* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
- A30, R30, R31, T20-22, X20-21, X22-24 */
- tp_features.hotkey_mask =
- acpi_evalf(hkey_handle, NULL, "DHKN", "qv");
+ A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
+ for HKEY interface version 0x100 */
+ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
+ if ((hkeyv >> 8) != 1) {
+ printk(IBM_ERR "unknown version of the "
+ "HKEY interface: 0x%x\n", hkeyv);
+ printk(IBM_ERR "please report this to %s\n",
+ IBM_MAIL);
+ } else {
+ /*
+ * MHKV 0x100 in A31, R40, R40e,
+ * T4x, X31, and later
+ * */
+ tp_features.hotkey_mask = 1;
+ }
+ }
vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
if (tp_features.hotkey_mask) {
- /* MHKA available in A31, R40, R40e, T4x, X31, and later */
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
- "MHKA", "qd"))
+ "MHKA", "qd")) {
+ printk(IBM_ERR
+ "missing MHKA handler, "
+ "please report this to %s\n",
+ IBM_MAIL);
hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
+ }
}
res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 28/32] ACPI: thinkpad-acpi: check version of hot key firmware
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Check the HKEY firmware version (HKEY.MHKV handler), and refuse to load if
it is unknown. Use this instead of the presence of HKEY.DHKV to detect hot
key mask capability.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 28 +++++++++++++++++++++++-----
1 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 2155139..9a61140 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -999,6 +999,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
int res, i;
int status;
+ int hkeyv;
vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
@@ -1024,18 +1025,35 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
return res;
/* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
- A30, R30, R31, T20-22, X20-21, X22-24 */
- tp_features.hotkey_mask =
- acpi_evalf(hkey_handle, NULL, "DHKN", "qv");
+ A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
+ for HKEY interface version 0x100 */
+ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
+ if ((hkeyv >> 8) != 1) {
+ printk(IBM_ERR "unknown version of the "
+ "HKEY interface: 0x%x\n", hkeyv);
+ printk(IBM_ERR "please report this to %s\n",
+ IBM_MAIL);
+ } else {
+ /*
+ * MHKV 0x100 in A31, R40, R40e,
+ * T4x, X31, and later
+ * */
+ tp_features.hotkey_mask = 1;
+ }
+ }
vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
if (tp_features.hotkey_mask) {
- /* MHKA available in A31, R40, R40e, T4x, X31, and later */
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
- "MHKA", "qd"))
+ "MHKA", "qd")) {
+ printk(IBM_ERR
+ "missing MHKA handler, "
+ "please report this to %s\n",
+ IBM_MAIL);
hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
+ }
}
res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 29/32] ACPI: thinkpad-acpi: dequeue all pending hot key events at once
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Receive all pending hot key events at once from a single notification, and
don't complain if the queue is empty.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 52 ++++++++++++++++++++++++++++-------------
1 files changed, 35 insertions(+), 17 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 9a61140..de415fe 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1196,9 +1196,31 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
unsigned int keycode, scancode;
- int send_acpi_ev = 0;
+ int send_acpi_ev;
+
+ if (event != 0x80) {
+ printk(IBM_ERR "unknown hotkey notification event %d\n", event);
+ /* forward it to userspace, maybe it knows how to handle it */
+ acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
+ acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+ ibm->acpi->device->dev.bus_id,
+ event, 0);
+ return;
+ }
+
+ while (1) {
+ if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
+ printk(IBM_ERR "failed to retrieve hot key event\n");
+ return;
+ }
+
+ if (hkey == 0) {
+ /* queue empty */
+ return;
+ }
+
+ send_acpi_ev = 0;
- if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
switch (hkey >> 12) {
case 1:
/* 0x1000-0x1FFF: key presses */
@@ -1220,8 +1242,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
* eat up known LID events */
if (hkey != 0x5001 && hkey != 0x5002) {
printk(IBM_ERR
- "unknown LID-related hotkey event: 0x%04x\n",
- hkey);
+ "unknown LID-related hotkey event: 0x%04x\n",
+ hkey);
send_acpi_ev = 1;
}
break;
@@ -1240,21 +1262,17 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey);
send_acpi_ev = 1;
}
- } else {
- printk(IBM_ERR "unknown hotkey notification event %d\n", event);
- hkey = 0;
- send_acpi_ev = 1;
- }
- /* Legacy events */
- if (send_acpi_ev || hotkey_report_mode < 2)
- acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+ /* Legacy events */
+ if (send_acpi_ev || hotkey_report_mode < 2)
+ acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
- /* netlink events */
- if (send_acpi_ev) {
- acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
- ibm->acpi->device->dev.bus_id,
- event, hkey);
+ /* netlink events */
+ if (send_acpi_ev) {
+ acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+ ibm->acpi->device->dev.bus_id,
+ event, hkey);
+ }
}
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 29/32] ACPI: thinkpad-acpi: dequeue all pending hot key events at once
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Receive all pending hot key events at once from a single notification, and
don't complain if the queue is empty.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 52 ++++++++++++++++++++++++++++-------------
1 files changed, 35 insertions(+), 17 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 9a61140..de415fe 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1196,9 +1196,31 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
unsigned int keycode, scancode;
- int send_acpi_ev = 0;
+ int send_acpi_ev;
+
+ if (event != 0x80) {
+ printk(IBM_ERR "unknown hotkey notification event %d\n", event);
+ /* forward it to userspace, maybe it knows how to handle it */
+ acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
+ acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+ ibm->acpi->device->dev.bus_id,
+ event, 0);
+ return;
+ }
+
+ while (1) {
+ if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
+ printk(IBM_ERR "failed to retrieve hot key event\n");
+ return;
+ }
+
+ if (hkey == 0) {
+ /* queue empty */
+ return;
+ }
+
+ send_acpi_ev = 0;
- if (event == 0x80 && acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
switch (hkey >> 12) {
case 1:
/* 0x1000-0x1FFF: key presses */
@@ -1220,8 +1242,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
* eat up known LID events */
if (hkey != 0x5001 && hkey != 0x5002) {
printk(IBM_ERR
- "unknown LID-related hotkey event: 0x%04x\n",
- hkey);
+ "unknown LID-related hotkey event: 0x%04x\n",
+ hkey);
send_acpi_ev = 1;
}
break;
@@ -1240,21 +1262,17 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
printk(IBM_NOTICE "unhandled HKEY event 0x%04x\n", hkey);
send_acpi_ev = 1;
}
- } else {
- printk(IBM_ERR "unknown hotkey notification event %d\n", event);
- hkey = 0;
- send_acpi_ev = 1;
- }
- /* Legacy events */
- if (send_acpi_ev || hotkey_report_mode < 2)
- acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+ /* Legacy events */
+ if (send_acpi_ev || hotkey_report_mode < 2)
+ acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
- /* netlink events */
- if (send_acpi_ev) {
- acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
- ibm->acpi->device->dev.bus_id,
- event, hkey);
+ /* netlink events */
+ if (send_acpi_ev) {
+ acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
+ ibm->acpi->device->dev.bus_id,
+ event, hkey);
+ }
}
}
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 30/32] ACPI: thinkpad-acpi: fix regression on HKEY LID event handling
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
We were letting ThinkPad-specific LID events through to userspace again,
instead of dropping them. Fix it. We don't want to give userspace the
option of not using generic LID handling.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index de415fe..24503cc 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1197,6 +1197,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
u32 hkey;
unsigned int keycode, scancode;
int send_acpi_ev;
+ int ignore_acpi_ev;
if (event != 0x80) {
printk(IBM_ERR "unknown hotkey notification event %d\n", event);
@@ -1220,6 +1221,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
}
send_acpi_ev = 0;
+ ignore_acpi_ev = 0;
switch (hkey >> 12) {
case 1:
@@ -1245,6 +1247,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
"unknown LID-related hotkey event: 0x%04x\n",
hkey);
send_acpi_ev = 1;
+ } else {
+ ignore_acpi_ev = 1;
}
break;
case 7:
@@ -1264,11 +1268,12 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
}
/* Legacy events */
- if (send_acpi_ev || hotkey_report_mode < 2)
+ if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) {
acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+ }
/* netlink events */
- if (send_acpi_ev) {
+ if (!ignore_acpi_ev && send_acpi_ev) {
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, hkey);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 30/32] ACPI: thinkpad-acpi: fix regression on HKEY LID event handling
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Henrique de Moraes Holschuh, Len Brown
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
We were letting ThinkPad-specific LID events through to userspace again,
instead of dropping them. Fix it. We don't want to give userspace the
option of not using generic LID handling.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/misc/thinkpad_acpi.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index de415fe..24503cc 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -1197,6 +1197,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
u32 hkey;
unsigned int keycode, scancode;
int send_acpi_ev;
+ int ignore_acpi_ev;
if (event != 0x80) {
printk(IBM_ERR "unknown hotkey notification event %d\n", event);
@@ -1220,6 +1221,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
}
send_acpi_ev = 0;
+ ignore_acpi_ev = 0;
switch (hkey >> 12) {
case 1:
@@ -1245,6 +1247,8 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
"unknown LID-related hotkey event: 0x%04x\n",
hkey);
send_acpi_ev = 1;
+ } else {
+ ignore_acpi_ev = 1;
}
break;
case 7:
@@ -1264,11 +1268,12 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
}
/* Legacy events */
- if (send_acpi_ev || hotkey_report_mode < 2)
+ if (!ignore_acpi_ev && (send_acpi_ev || hotkey_report_mode < 2)) {
acpi_bus_generate_proc_event(ibm->acpi->device, event, hkey);
+ }
/* netlink events */
- if (send_acpi_ev) {
+ if (!ignore_acpi_ev && send_acpi_ev) {
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, hkey);
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 31/32] ACPI: hpet: ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFF0
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Zhao Yakui, Len Brown
From: Zhao Yakui <yakui.zhao@intel.com>
If hpet has been initialized before registering hpet driver, the callback
function of hpet_resources will return the status code of -EBUSY, which is
not defined in the ACPI exception table. So when ACPI checks the status
code of callback function, it will report the unknown exception code.
So the status code in ACPI is used instead of the generic error code in the
ACPI callback function of hpet_resources.
For example: -EBUSY is replaced by AE_ALREADY_EXISTS
-EINVAL is replaced by AE_NO_MEMORY
http://bugzilla.kernel.org/show_bug.cgi?id=8630
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/char/hpet.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 7ecffc9..fd51554 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -943,14 +943,14 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_FIXED_MEMORY32) {
struct acpi_resource_fixed_memory32 *fixmem32;
fixmem32 = &res->data.fixed_memory32;
if (!fixmem32)
- return -EINVAL;
+ return AE_NO_MEMORY;
hdp->hd_phys_address = fixmem32->address;
hdp->hd_address = ioremap(fixmem32->address,
@@ -960,7 +960,7 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
struct acpi_resource_extended_irq *irqp;
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 31/32] ACPI: hpet: ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFF0
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Zhao Yakui, Len Brown
From: Zhao Yakui <yakui.zhao@intel.com>
If hpet has been initialized before registering hpet driver, the callback
function of hpet_resources will return the status code of -EBUSY, which is
not defined in the ACPI exception table. So when ACPI checks the status
code of callback function, it will report the unknown exception code.
So the status code in ACPI is used instead of the generic error code in the
ACPI callback function of hpet_resources.
For example: -EBUSY is replaced by AE_ALREADY_EXISTS
-EINVAL is replaced by AE_NO_MEMORY
http://bugzilla.kernel.org/show_bug.cgi?id=8630
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/char/hpet.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 7ecffc9..fd51554 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -943,14 +943,14 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_FIXED_MEMORY32) {
struct acpi_resource_fixed_memory32 *fixmem32;
fixmem32 = &res->data.fixed_memory32;
if (!fixmem32)
- return -EINVAL;
+ return AE_NO_MEMORY;
hdp->hd_phys_address = fixmem32->address;
hdp->hd_address = ioremap(fixmem32->address,
@@ -960,7 +960,7 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
struct acpi_resource_extended_irq *irqp;
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 32/32] ACPI: Hibernate erroneously disabled Suspend wakeup devices
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
S4 suspend to disk will disable GPE's permanently
because acpi_gpe_sleep_prepare() does not have
a counterpart at resume time. Thus, those devices
became unavailable for wakeup from subsequent
S3 suspend-to-ram.
Here acpi_gpe_sleep_prepare() is removed, and upon suspend
acpi_enable_wakeup_device() gets its functionality.
Upon resume, acpi_disable_wakeup_device() restores the state.
https://bugzilla.novell.com/show_bug.cgi?id=292300
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sleep/main.c | 1 -
drivers/acpi/sleep/sleep.h | 1 -
drivers/acpi/sleep/wakeup.c | 117 +++++++++++++++----------------------------
include/acpi/acpi_bus.h | 1 -
4 files changed, 40 insertions(+), 80 deletions(-)
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 85633c5..6e3b22a 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -76,7 +76,6 @@ int acpi_sleep_prepare(u32 acpi_state)
ACPI_FLUSH_CPU_CACHE();
acpi_enable_wakeup_device_prep(acpi_state);
#endif
- acpi_gpe_sleep_prepare(acpi_state);
acpi_enter_sleep_state_prep(acpi_state);
return 0;
}
diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h
index ff1f850..a2ea125 100644
--- a/drivers/acpi/sleep/sleep.h
+++ b/drivers/acpi/sleep/sleep.h
@@ -5,6 +5,5 @@ extern int acpi_suspend (u32 state);
extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
extern void acpi_enable_wakeup_device(u8 sleep_state);
extern void acpi_disable_wakeup_device(u8 sleep_state);
-extern void acpi_gpe_sleep_prepare(u32 sleep_state);
extern int acpi_sleep_prepare(u32 acpi_state);
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index 97c27dd..ed8e41b 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -64,36 +64,29 @@ void acpi_enable_wakeup_device(u8 sleep_state)
ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device");
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
-
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+ if (!dev->wakeup.flags.valid)
+ continue;
/* If users want to disable run-wake GPE,
* we only disable it for wake and leave it for runtime
*/
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
- /* Re-enable it, since set_gpe_type will disable it */
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_ISR);
- spin_lock(&acpi_device_lock);
+ if (!dev->wakeup.state.enabled ||
+ sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ /* set_gpe_type will disable GPE, leave it like that */
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_RUNTIME);
+ spin_lock(&acpi_device_lock);
+ }
continue;
}
-
- if (!dev->wakeup.flags.valid ||
- !dev->wakeup.state.enabled ||
- (sleep_state > (u32) dev->wakeup.sleep_state))
- continue;
-
spin_unlock(&acpi_device_lock);
- /* run-wake GPE has been enabled */
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_ISR);
- dev->wakeup.state.active = 1;
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@@ -112,26 +105,25 @@ void acpi_disable_wakeup_device(u8 sleep_state)
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- /* Re-enable it, since set_gpe_type will disable it */
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
- spin_lock(&acpi_device_lock);
+ if (!dev->wakeup.flags.valid)
continue;
- }
-
- if (!dev->wakeup.flags.valid ||
- !dev->wakeup.state.active ||
- (sleep_state > (u32) dev->wakeup.sleep_state))
+ if (!dev->wakeup.state.enabled ||
+ sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ /* Re-enable it, since set_gpe_type will disable it */
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ spin_lock(&acpi_device_lock);
+ }
continue;
+ }
spin_unlock(&acpi_device_lock);
acpi_disable_wakeup_device_power(dev);
@@ -142,7 +134,6 @@ void acpi_disable_wakeup_device(u8 sleep_state)
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
- dev->wakeup.state.active = 0;
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@@ -160,48 +151,20 @@ static int __init acpi_wakeup_device_init(void)
struct acpi_device *dev = container_of(node,
struct acpi_device,
wakeup_list);
-
/* In case user doesn't load button driver */
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
- dev->wakeup.state.enabled = 1;
- spin_lock(&acpi_device_lock);
- }
+ if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
+ continue;
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ dev->wakeup.state.enabled = 1;
+ spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
-
return 0;
}
late_initcall(acpi_wakeup_device_init);
-
-/*
- * Disable all wakeup GPEs before entering requested sleep state.
- * @sleep_state: ACPI state
- * Since acpi_enter_sleep_state() will disable all
- * RUNTIME GPEs, we simply mark all GPES that
- * are not enabled for wakeup from requested state as RUNTIME.
- */
-void acpi_gpe_sleep_prepare(u32 sleep_state)
-{
- struct list_head *node, *next;
-
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
-
- /* The GPE can wakeup system from this state, don't touch it */
- if ((u32) dev->wakeup.sleep_state >= sleep_state)
- continue;
- /* acpi_set_gpe_type will automatically disable GPE */
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
- }
-}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 86aea44..17500a1 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -264,7 +264,6 @@ struct acpi_device_wakeup_flags {
struct acpi_device_wakeup_state {
u8 enabled:1;
- u8 active:1;
};
struct acpi_device_wakeup {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread* [PATCH 32/32] ACPI: Hibernate erroneously disabled Suspend wakeup devices
@ 2007-09-22 3:46 ` Len Brown
0 siblings, 0 replies; 33+ messages in thread
From: Len Brown @ 2007-09-22 3:46 UTC (permalink / raw)
To: linux-acpi; +Cc: Alexey Starikovskiy, Len Brown
From: Alexey Starikovskiy <astarikovskiy@suse.de>
S4 suspend to disk will disable GPE's permanently
because acpi_gpe_sleep_prepare() does not have
a counterpart at resume time. Thus, those devices
became unavailable for wakeup from subsequent
S3 suspend-to-ram.
Here acpi_gpe_sleep_prepare() is removed, and upon suspend
acpi_enable_wakeup_device() gets its functionality.
Upon resume, acpi_disable_wakeup_device() restores the state.
https://bugzilla.novell.com/show_bug.cgi?id=292300
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/sleep/main.c | 1 -
drivers/acpi/sleep/sleep.h | 1 -
drivers/acpi/sleep/wakeup.c | 117 +++++++++++++++----------------------------
include/acpi/acpi_bus.h | 1 -
4 files changed, 40 insertions(+), 80 deletions(-)
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 85633c5..6e3b22a 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -76,7 +76,6 @@ int acpi_sleep_prepare(u32 acpi_state)
ACPI_FLUSH_CPU_CACHE();
acpi_enable_wakeup_device_prep(acpi_state);
#endif
- acpi_gpe_sleep_prepare(acpi_state);
acpi_enter_sleep_state_prep(acpi_state);
return 0;
}
diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h
index ff1f850..a2ea125 100644
--- a/drivers/acpi/sleep/sleep.h
+++ b/drivers/acpi/sleep/sleep.h
@@ -5,6 +5,5 @@ extern int acpi_suspend (u32 state);
extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
extern void acpi_enable_wakeup_device(u8 sleep_state);
extern void acpi_disable_wakeup_device(u8 sleep_state);
-extern void acpi_gpe_sleep_prepare(u32 sleep_state);
extern int acpi_sleep_prepare(u32 acpi_state);
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index 97c27dd..ed8e41b 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -64,36 +64,29 @@ void acpi_enable_wakeup_device(u8 sleep_state)
ACPI_FUNCTION_TRACE("acpi_enable_wakeup_device");
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
-
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+ if (!dev->wakeup.flags.valid)
+ continue;
/* If users want to disable run-wake GPE,
* we only disable it for wake and leave it for runtime
*/
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
- /* Re-enable it, since set_gpe_type will disable it */
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_ISR);
- spin_lock(&acpi_device_lock);
+ if (!dev->wakeup.state.enabled ||
+ sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ /* set_gpe_type will disable GPE, leave it like that */
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_RUNTIME);
+ spin_lock(&acpi_device_lock);
+ }
continue;
}
-
- if (!dev->wakeup.flags.valid ||
- !dev->wakeup.state.enabled ||
- (sleep_state > (u32) dev->wakeup.sleep_state))
- continue;
-
spin_unlock(&acpi_device_lock);
- /* run-wake GPE has been enabled */
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_ISR);
- dev->wakeup.state.active = 1;
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@@ -112,26 +105,25 @@ void acpi_disable_wakeup_device(u8 sleep_state)
spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- /* Re-enable it, since set_gpe_type will disable it */
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
- spin_lock(&acpi_device_lock);
+ if (!dev->wakeup.flags.valid)
continue;
- }
-
- if (!dev->wakeup.flags.valid ||
- !dev->wakeup.state.active ||
- (sleep_state > (u32) dev->wakeup.sleep_state))
+ if (!dev->wakeup.state.enabled ||
+ sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ /* Re-enable it, since set_gpe_type will disable it */
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ spin_lock(&acpi_device_lock);
+ }
continue;
+ }
spin_unlock(&acpi_device_lock);
acpi_disable_wakeup_device_power(dev);
@@ -142,7 +134,6 @@ void acpi_disable_wakeup_device(u8 sleep_state)
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
- dev->wakeup.state.active = 0;
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@@ -160,48 +151,20 @@ static int __init acpi_wakeup_device_init(void)
struct acpi_device *dev = container_of(node,
struct acpi_device,
wakeup_list);
-
/* In case user doesn't load button driver */
- if (dev->wakeup.flags.run_wake && !dev->wakeup.state.enabled) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
- dev->wakeup.state.enabled = 1;
- spin_lock(&acpi_device_lock);
- }
+ if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
+ continue;
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ dev->wakeup.state.enabled = 1;
+ spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
-
return 0;
}
late_initcall(acpi_wakeup_device_init);
-
-/*
- * Disable all wakeup GPEs before entering requested sleep state.
- * @sleep_state: ACPI state
- * Since acpi_enter_sleep_state() will disable all
- * RUNTIME GPEs, we simply mark all GPES that
- * are not enabled for wakeup from requested state as RUNTIME.
- */
-void acpi_gpe_sleep_prepare(u32 sleep_state)
-{
- struct list_head *node, *next;
-
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
-
- /* The GPE can wakeup system from this state, don't touch it */
- if ((u32) dev->wakeup.sleep_state >= sleep_state)
- continue;
- /* acpi_set_gpe_type will automatically disable GPE */
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
- }
-}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 86aea44..17500a1 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -264,7 +264,6 @@ struct acpi_device_wakeup_flags {
struct acpi_device_wakeup_state {
u8 enabled:1;
- u8 active:1;
};
struct acpi_device_wakeup {
--
1.5.3.1.27.g57543
^ permalink raw reply related [flat|nested] 33+ messages in thread