* [Qemu-devel] [PATCH 1/3] jazz-led: use trace framework
2012-01-23 10:34 [Qemu-devel] [PATCH 0/3] jazz-led: qdev conversion Hervé Poussineau
@ 2012-01-23 10:34 ` Hervé Poussineau
2012-01-23 10:34 ` [Qemu-devel] [PATCH 2/3] jazz-led: convert to qdev Hervé Poussineau
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: Hervé Poussineau @ 2012-01-23 10:34 UTC (permalink / raw)
To: qemu-devel; +Cc: Anthony Liguori, Hervé Poussineau
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
---
hw/jazz_led.c | 26 +++++++++-----------------
trace-events | 4 ++++
2 files changed, 13 insertions(+), 17 deletions(-)
diff --git a/hw/jazz_led.c b/hw/jazz_led.c
index f8a2182..1af9268 100644
--- a/hw/jazz_led.c
+++ b/hw/jazz_led.c
@@ -26,17 +26,7 @@
#include "mips.h"
#include "console.h"
#include "pixel_ops.h"
-
-//#define DEBUG_LED
-
-#ifdef DEBUG_LED
-#define DPRINTF(fmt, ...) \
-do { printf("jazz led: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...) do {} while (0)
-#endif
-#define BADF(fmt, ...) \
-do { fprintf(stderr, "jazz led ERROR: " fmt , ## __VA_ARGS__);} while (0)
+#include "trace.h"
typedef enum {
REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
@@ -52,18 +42,18 @@ typedef struct LedState {
static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
{
LedState *s = opaque;
- uint32_t val;
+ uint8_t val;
switch (addr) {
case 0:
val = s->segments;
break;
default:
- BADF("invalid read at [" TARGET_FMT_plx "]\n", addr);
+ error_report("invalid read at [" TARGET_FMT_plx "]\n", addr);
val = 0;
}
- DPRINTF("read addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
+ trace_jazz_led_read(addr, val);
return val;
}
@@ -101,16 +91,18 @@ static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
LedState *s = opaque;
+ uint8_t new_val = val & 0xff;
- DPRINTF("write addr=" TARGET_FMT_plx " val=0x%02x\n", addr, val);
+ trace_jazz_led_write(addr, new_val);
switch (addr) {
case 0:
- s->segments = val;
+ s->segments = new_val;
s->state |= REDRAW_SEGMENTS;
break;
default:
- BADF("invalid write of 0x%08x at [" TARGET_FMT_plx "]\n", val, addr);
+ error_report("invalid write of 0x%x at [" TARGET_FMT_plx "]\n",
+ new_val, addr);
break;
}
}
diff --git a/trace-events b/trace-events
index 834eb7f..f38c2da 100644
--- a/trace-events
+++ b/trace-events
@@ -129,6 +129,10 @@ ecc_mem_readl_ecr1(uint32_t ret) "Read event count 2 %08x"
ecc_diag_mem_writeb(uint64_t addr, uint32_t val) "Write diagnostic %"PRId64" = %02x"
ecc_diag_mem_readb(uint64_t addr, uint32_t ret) "Read diagnostic %"PRId64"= %02x"
+# hw/jazz-led.c
+jazz_led_read(uint64_t addr, uint8_t val) "read addr=0x%"PRIx64": 0x%x"
+jazz_led_write(uint64_t addr, uint8_t new) "write addr=0x%"PRIx64": 0x%x"
+
# hw/lance.c
lance_mem_readw(uint64_t addr, uint32_t ret) "addr=%"PRIx64"val=0x%04x"
lance_mem_writew(uint64_t addr, uint32_t val) "addr=%"PRIx64"val=0x%04x"
--
1.7.7.3
^ permalink raw reply related [flat|nested] 6+ messages in thread* [Qemu-devel] [PATCH 2/3] jazz-led: convert to qdev
2012-01-23 10:34 [Qemu-devel] [PATCH 0/3] jazz-led: qdev conversion Hervé Poussineau
2012-01-23 10:34 ` [Qemu-devel] [PATCH 1/3] jazz-led: use trace framework Hervé Poussineau
@ 2012-01-23 10:34 ` Hervé Poussineau
2012-01-23 10:34 ` [Qemu-devel] [PATCH 3/3] jazz-led: compile it only twice Hervé Poussineau
2012-02-01 20:44 ` [Qemu-devel] [PATCH 0/3] jazz-led: qdev conversion Anthony Liguori
3 siblings, 0 replies; 6+ messages in thread
From: Hervé Poussineau @ 2012-01-23 10:34 UTC (permalink / raw)
To: qemu-devel; +Cc: Anthony Liguori, Hervé Poussineau
Some simplifications in I/O functions are possible because
Jazz LED only registers one byte of I/O.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
---
hw/jazz_led.c | 153 +++++++++++++++++++++++--------------------------------
hw/mips.h | 3 -
hw/mips_jazz.c | 2 +-
3 files changed, 65 insertions(+), 93 deletions(-)
diff --git a/hw/jazz_led.c b/hw/jazz_led.c
index 1af9268..de401a9 100644
--- a/hw/jazz_led.c
+++ b/hw/jazz_led.c
@@ -1,7 +1,7 @@
/*
* QEMU JAZZ LED emulator.
*
- * Copyright (c) 2007 Hervé Poussineau
+ * Copyright (c) 2007-2012 Herve Poussineau
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -22,123 +22,53 @@
* THE SOFTWARE.
*/
-#include "hw.h"
-#include "mips.h"
#include "console.h"
#include "pixel_ops.h"
#include "trace.h"
+#include "sysbus.h"
typedef enum {
REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
} screen_state_t;
typedef struct LedState {
+ SysBusDevice busdev;
MemoryRegion iomem;
uint8_t segments;
DisplayState *ds;
screen_state_t state;
} LedState;
-static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
+static uint64_t jazz_led_read(void *opaque, target_phys_addr_t addr,
+ unsigned int size)
{
LedState *s = opaque;
uint8_t val;
- switch (addr) {
- case 0:
- val = s->segments;
- break;
- default:
- error_report("invalid read at [" TARGET_FMT_plx "]\n", addr);
- val = 0;
- }
-
+ val = s->segments;
trace_jazz_led_read(addr, val);
return val;
}
-static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
-{
- uint32_t v;
-#ifdef TARGET_WORDS_BIGENDIAN
- v = led_readb(opaque, addr) << 8;
- v |= led_readb(opaque, addr + 1);
-#else
- v = led_readb(opaque, addr);
- v |= led_readb(opaque, addr + 1) << 8;
-#endif
- return v;
-}
-
-static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
-{
- uint32_t v;
-#ifdef TARGET_WORDS_BIGENDIAN
- v = led_readb(opaque, addr) << 24;
- v |= led_readb(opaque, addr + 1) << 16;
- v |= led_readb(opaque, addr + 2) << 8;
- v |= led_readb(opaque, addr + 3);
-#else
- v = led_readb(opaque, addr);
- v |= led_readb(opaque, addr + 1) << 8;
- v |= led_readb(opaque, addr + 2) << 16;
- v |= led_readb(opaque, addr + 3) << 24;
-#endif
- return v;
-}
-
-static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void jazz_led_write(void *opaque, target_phys_addr_t addr,
+ uint64_t val, unsigned int size)
{
LedState *s = opaque;
uint8_t new_val = val & 0xff;
trace_jazz_led_write(addr, new_val);
- switch (addr) {
- case 0:
- s->segments = new_val;
- s->state |= REDRAW_SEGMENTS;
- break;
- default:
- error_report("invalid write of 0x%x at [" TARGET_FMT_plx "]\n",
- new_val, addr);
- break;
- }
-}
-
-static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
- led_writeb(opaque, addr, (val >> 8) & 0xff);
- led_writeb(opaque, addr + 1, val & 0xff);
-#else
- led_writeb(opaque, addr, val & 0xff);
- led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
-#endif
-}
-
-static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
- led_writeb(opaque, addr, (val >> 24) & 0xff);
- led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
- led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
- led_writeb(opaque, addr + 3, val & 0xff);
-#else
- led_writeb(opaque, addr, val & 0xff);
- led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
- led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
- led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
-#endif
+ s->segments = new_val;
+ s->state |= REDRAW_SEGMENTS;
}
static const MemoryRegionOps led_ops = {
- .old_mmio = {
- .read = { led_readb, led_readw, led_readl, },
- .write = { led_writeb, led_writew, led_writel, },
- },
+ .read = jazz_led_read,
+ .write = jazz_led_write,
.endianness = DEVICE_NATIVE_ENDIAN,
+ .impl.min_access_size = 1,
+ .impl.max_access_size = 1,
};
/***********************************************************/
@@ -296,20 +226,65 @@ static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
dpy_update(s->ds, 0, 0, 2, 1);
}
-void jazz_led_init(MemoryRegion *address_space, target_phys_addr_t base)
+static int jazz_led_post_load(void *opaque, int version_id)
{
- LedState *s;
+ /* force refresh */
+ jazz_led_invalidate_display(opaque);
- s = g_malloc0(sizeof(LedState));
+ return 0;
+}
- s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
+static const VMStateDescription vmstate_jazz_led = {
+ .name = "jazz-led",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .minimum_version_id_old = 0,
+ .post_load = jazz_led_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(segments, LedState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int jazz_led_init(SysBusDevice *dev)
+{
+ LedState *s = FROM_SYSBUS(LedState, dev);
memory_region_init_io(&s->iomem, &led_ops, s, "led", 1);
- memory_region_add_subregion(address_space, base, &s->iomem);
+ sysbus_init_mmio(dev, &s->iomem);
s->ds = graphic_console_init(jazz_led_update_display,
jazz_led_invalidate_display,
jazz_led_screen_dump,
jazz_led_text_update, s);
+
+ return 0;
+}
+
+static void jazz_led_reset(DeviceState *d)
+{
+ LedState *s = DO_UPCAST(LedState, busdev.qdev, d);
+
+ s->segments = 0;
+ s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
qemu_console_resize(s->ds, 60, 80);
}
+
+static SysBusDeviceInfo jazz_led_info = {
+ .init = jazz_led_init,
+ .qdev.name = "jazz-led",
+ .qdev.desc = "Jazz LED display",
+ .qdev.size = sizeof(LedState),
+ .qdev.vmsd = &vmstate_jazz_led,
+ .qdev.reset = jazz_led_reset,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void jazz_led_register(void)
+{
+ sysbus_register_withprop(&jazz_led_info);
+}
+
+device_init(jazz_led_register);
diff --git a/hw/mips.h b/hw/mips.h
index 22156fc..a7e6d4c 100644
--- a/hw/mips.h
+++ b/hw/mips.h
@@ -10,9 +10,6 @@ PCIBus *gt64120_register(qemu_irq *pic);
/* bonito.c */
PCIBus *bonito_init(qemu_irq *pic);
-/* jazz_led.c */
-void jazz_led_init(MemoryRegion *address_space, target_phys_addr_t base);
-
/* rc4030.c */
typedef struct rc4030DMAState *rc4030_dma;
void rc4030_dma_memory_rw(void *opaque, target_phys_addr_t addr, uint8_t *buf, int len, int is_write);
diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c
index 63165b9..ef39b20 100644
--- a/hw/mips_jazz.c
+++ b/hw/mips_jazz.c
@@ -293,7 +293,7 @@ static void mips_jazz_init(MemoryRegion *address_space,
sysbus_mmio_map(sysbus, 0, 0x80009000);
/* LED indicator */
- jazz_led_init(address_space, 0x8000f000);
+ sysbus_create_simple("jazz-led", 0x8000f000, NULL);
}
static
--
1.7.7.3
^ permalink raw reply related [flat|nested] 6+ messages in thread