* [PATCH 1/3 -next] usbtouchscreen: convert from usb_device to usb_interface
2009-12-02 21:40 ` Andrew Morton
@ 2009-12-03 9:07 ` Ondrej Zary
2009-12-03 9:08 ` [PATCH 2/3 -next] usbtouchscreen: find input endpoint automatically Ondrej Zary
2009-12-03 9:09 ` [PATCH 3/3 -next] usbtouchscreen: add NEXIO (or iNexio) support Ondrej Zary
2 siblings, 0 replies; 5+ messages in thread
From: Ondrej Zary @ 2009-12-03 9:07 UTC (permalink / raw)
To: Andrew Morton; +Cc: Oliver Neukum, linux-usb, daniel.ritz, linux-kernel
Convert usbtouchscreen from storing usb_device to usb_interface. This is
needed for multi-interface touchscreen devices such as iNexio.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
--- linux-2.6.32-rc8-next-20091202-orig/drivers/input/touchscreen/usbtouchscreen.c 2009-12-02 23:52:15.000000000 +0100
+++ linux-2.6.32-rc8-next-20091202/drivers/input/touchscreen/usbtouchscreen.c 2009-12-03 09:19:23.000000000 +0100
@@ -104,7 +104,7 @@ struct usbtouch_usb {
unsigned char *buffer;
int buf_len;
struct urb *irq;
- struct usb_device *udev;
+ struct usb_interface *interface;
struct input_dev *input;
struct usbtouch_device_info *type;
char name[128];
@@ -234,8 +234,9 @@ static struct usb_device_id usbtouch_dev
static int e2i_init(struct usbtouch_usb *usbtouch)
{
int ret;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
0x01, 0x02, 0x0000, 0x0081,
NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -344,8 +345,9 @@ static int mtouch_read_data(struct usbto
static int mtouch_init(struct usbtouch_usb *usbtouch)
{
int ret, i;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_RESET,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -356,7 +358,7 @@ static int mtouch_init(struct usbtouch_u
msleep(150);
for (i = 0; i < 3; i++) {
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
MTOUCHUSB_ASYNC_REPORT,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -489,7 +491,7 @@ static int gunze_read_data(struct usbtou
static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
{
- struct usb_device *dev = usbtouch->udev;
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
int ret = -ENOMEM;
unsigned char *buf;
@@ -1021,7 +1023,7 @@ static int usbtouch_open(struct input_de
{
struct usbtouch_usb *usbtouch = input_get_drvdata(input);
- usbtouch->irq->dev = usbtouch->udev;
+ usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface);
if (!usbtouch->type->irq_always) {
if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))
@@ -1094,7 +1096,7 @@ static int usbtouch_probe(struct usb_int
goto out_free_buffers;
}
- usbtouch->udev = udev;
+ usbtouch->interface = intf;
usbtouch->input = input_dev;
if (udev->manufacturer)
@@ -1133,12 +1135,12 @@ static int usbtouch_probe(struct usb_int
input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
type->max_press, 0, 0);
- usb_fill_int_urb(usbtouch->irq, usbtouch->udev,
- usb_rcvintpipe(usbtouch->udev, endpoint->bEndpointAddress),
+ usb_fill_int_urb(usbtouch->irq, udev,
+ usb_rcvintpipe(udev, endpoint->bEndpointAddress),
usbtouch->data, type->rept_size,
usbtouch_irq, usbtouch, endpoint->bInterval);
- usbtouch->irq->dev = usbtouch->udev;
+ usbtouch->irq->dev = udev;
usbtouch->irq->transfer_dma = usbtouch->data_dma;
usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
--
Ondrej Zary
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH 3/3 -next] usbtouchscreen: add NEXIO (or iNexio) support
2009-12-02 21:40 ` Andrew Morton
2009-12-03 9:07 ` [PATCH 1/3 -next] " Ondrej Zary
2009-12-03 9:08 ` [PATCH 2/3 -next] usbtouchscreen: find input endpoint automatically Ondrej Zary
@ 2009-12-03 9:09 ` Ondrej Zary
2 siblings, 0 replies; 5+ messages in thread
From: Ondrej Zary @ 2009-12-03 9:09 UTC (permalink / raw)
To: Andrew Morton; +Cc: Oliver Neukum, linux-usb, daniel.ritz, linux-kernel
Add support for NEXIO (or iNexio) USB touchscreens to usbtouchscreen driver.
Tested with NEX170MRT 17" LCD monitor with integrated touchscreen
(with xserver-xorg-input-evtouch 0.8.8-1):
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 54 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=1870 ProdID=0001 Rev= 1.00
S: Manufacturer=iNexio
S: Product=iNexio USB
C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=00 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
No datasheet is available, this was written by capturing some data with
SniffUSB in Windows:
http://www.rainbow-software.org/linux_files/nexio/
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
--- linux-2.6.32-rc8-next-20091202/drivers/input/touchscreen/usbtouchscreen.2 2009-12-03 09:26:03.000000000 +0100
+++ linux-2.6.32-rc8-next-20091202/drivers/input/touchscreen/usbtouchscreen.c 2009-12-03 09:36:41.000000000 +0100
@@ -15,6 +15,7 @@
* - GoTop Super_Q2/GogoPen/PenPower tablets
* - JASTEC USB touch controller/DigiTech DTR-02U
* - Zytronic capacitive touchscreen
+ * - NEXIO/iNexio
*
* Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -95,6 +96,7 @@ struct usbtouch_device_info {
int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
int (*init) (struct usbtouch_usb *usbtouch);
+ void (*exit) (struct usbtouch_usb *usbtouch);
};
/* a usbtouch device */
@@ -109,6 +111,7 @@ struct usbtouch_usb {
struct usbtouch_device_info *type;
char name[128];
char phys[64];
+ void *priv;
int x, y;
int touch, press;
@@ -133,6 +136,7 @@ enum {
DEVTYPE_E2I,
DEVTYPE_ZYTRONIC,
DEVTYPE_TC5UH,
+ DEVTYPE_NEXIO,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
@@ -222,6 +226,14 @@ static struct usb_device_id usbtouch_dev
{USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC5UH},
#endif
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ /* data interface only */
+ {USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+ {USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+#endif
+
{}
};
@@ -692,6 +704,211 @@ static int zytronic_read_data(struct usb
#endif
/*****************************************************************************
+ * NEXIO Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+
+#define NEXIO_TIMEOUT 5000
+#define NEXIO_BUFSIZE 1024
+#define NEXIO_THRESHOLD 50
+
+struct nexio_priv {
+ struct urb *ack;
+ unsigned char *ack_buf;
+};
+
+struct nexio_touch_packet {
+ u8 flags; /* 0xe1 = touch, 0xe1 = release */
+ __be16 data_len; /* total bytes of touch data */
+ __be16 x_len; /* bytes for X axis */
+ __be16 y_len; /* bytes for Y axis */
+ u8 data[];
+} __attribute__ ((packed));
+
+static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 };
+static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
+
+static int nexio_init(struct usbtouch_usb *usbtouch)
+{
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
+ struct usb_host_interface *interface = usbtouch->interface->cur_altsetting;
+ struct nexio_priv *priv;
+ int ret = -ENOMEM;
+ int actual_len, i;
+ unsigned char *buf;
+ char *firmware_ver = NULL, *device_name = NULL;
+ int input_ep = 0, output_ep = 0;
+
+ /* find first input and output endpoint */
+ for (i = 0; i < interface->desc.bNumEndpoints; i++) {
+ if (!input_ep &&
+ usb_endpoint_dir_in(&interface->endpoint[i].desc))
+ input_ep = interface->endpoint[i].desc.bEndpointAddress;
+ if (!output_ep &&
+ usb_endpoint_dir_out(&interface->endpoint[i].desc))
+ output_ep = interface->endpoint[i].desc.bEndpointAddress;
+ }
+ if (!input_ep || !output_ep)
+ return -ENXIO;
+
+ buf = kmalloc(NEXIO_BUFSIZE, GFP_KERNEL);
+ if (!buf)
+ goto out_buf;
+ /* two empty reads */
+ for (i = 0; i < 2; i++) {
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+ }
+ /* send init command */
+ memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt));
+ ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep),
+ buf, sizeof(nexio_init_pkt), &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+ /* read replies */
+ for (i = 0; i < 3; i++) {
+ memset(buf, 0, NEXIO_BUFSIZE);
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0 || actual_len < 1 || buf[1] != actual_len)
+ continue;
+ switch (buf[0]) {
+ case 0x83: /* firmware version */
+ if (!firmware_ver)
+ firmware_ver = kstrdup(&buf[2],
+ GFP_KERNEL);
+ break;
+ case 0x84: /* device name */
+ if (!device_name)
+ device_name = kstrdup(&buf[2],
+ GFP_KERNEL);
+ break;
+ }
+ }
+ printk(KERN_INFO "Nexio device: %s, firmware version: %s\n",
+ device_name, firmware_ver);
+ kfree(firmware_ver);
+ kfree(device_name);
+
+ /* prepare ACK URB */
+ ret = -ENOMEM;
+ usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL);
+ if (!usbtouch->priv)
+ goto out_buf;
+ priv = usbtouch->priv;
+ priv->ack_buf = kmalloc(sizeof(nexio_ack_pkt), GFP_KERNEL);
+ if (!priv->ack_buf)
+ goto err_priv;
+ memcpy(priv->ack_buf, nexio_ack_pkt, sizeof(nexio_ack_pkt));
+ priv->ack = usb_alloc_urb(0, GFP_KERNEL);
+ if (!priv->ack) {
+ dbg("%s - usb_alloc_urb failed: usbtouch->ack", __func__);
+ goto err_ack_buf;
+ }
+ usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep),
+ priv->ack_buf, sizeof(priv->ack_buf), NULL,
+ usbtouch);
+ ret = 0;
+ goto out_buf;
+err_ack_buf:
+ kfree(priv->ack_buf);
+err_priv:
+ kfree(priv);
+out_buf:
+ kfree(buf);
+ return ret;
+}
+
+static void nexio_exit(struct usbtouch_usb *usbtouch)
+{
+ struct nexio_priv *priv = usbtouch->priv;
+
+ usb_kill_urb(priv->ack);
+ usb_free_urb(priv->ack);
+ kfree(priv);
+}
+
+static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
+{
+ int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
+ struct nexio_touch_packet *packet = (void *) pkt;
+ struct nexio_priv *priv = usbtouch->priv;
+
+ /* got touch data? */
+ if ((pkt[0] & 0xe0) != 0xe0)
+ return 0;
+
+ /* send ACK */
+ ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
+
+ if (!usbtouch->type->max_xc) {
+ usbtouch->type->max_xc = 2 * be16_to_cpu(packet->x_len);
+ input_set_abs_params(usbtouch->input, ABS_X, 0,
+ 2 * be16_to_cpu(packet->x_len), 0, 0);
+ usbtouch->type->max_yc = 2 * be16_to_cpu(packet->y_len);
+ input_set_abs_params(usbtouch->input, ABS_Y, 0,
+ 2 * be16_to_cpu(packet->y_len), 0, 0);
+ }
+ /* The device reports state of IR sensors on X and Y axes.
+ * Each byte represents "darkness" percentage (0-100) of one element.
+ * 17" touchscreen reports only 64 x 52 bytes so the resolution is low.
+ * This also means that there's a limited multi-touch capability but
+ * it's disabled (and untested) here as there's no X driver for that.
+ */
+ begin_x = end_x = begin_y = end_y = -1;
+ for (x = 0; x < be16_to_cpu(packet->x_len); x++) {
+ if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) {
+ begin_x = x;
+ continue;
+ }
+ if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) {
+ end_x = x - 1;
+ for (y = be16_to_cpu(packet->x_len);
+ y < be16_to_cpu(packet->data_len); y++) {
+ if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) {
+ begin_y = y - be16_to_cpu(packet->x_len);
+ continue;
+ }
+ if (end_y == -1 &&
+ begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) {
+ end_y = y - 1 - be16_to_cpu(packet->x_len);
+ w = end_x - begin_x;
+ h = end_y - begin_y;
+ /* multi-touch */
+/* input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MAJOR, max(w,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MINOR, min(x,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_X, 2*begin_x+w);
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_Y, 2*begin_y+h);
+ input_report_abs(usbtouch->input,
+ ABS_MT_ORIENTATION, w > h);
+ input_mt_sync(usbtouch->input);*/
+ /* single touch */
+ usbtouch->x = 2 * begin_x + w;
+ usbtouch->y = 2 * begin_y + h;
+ usbtouch->touch = packet->flags & 0x01;
+ begin_y = end_y = -1;
+ return 1;
+ }
+ }
+ begin_x = end_x = -1;
+ }
+
+ }
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
* the different device descriptors
*/
#ifdef MULTI_PACKET
@@ -875,6 +1092,16 @@ static struct usbtouch_device_info usbto
.read_data = tc5uh_read_data,
},
#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ [DEVTYPE_NEXIO] = {
+ .rept_size = 128,
+ .irq_always = true,
+ .read_data = nexio_read_data,
+ .init = nexio_init,
+ .exit = nexio_exit,
+ },
+#endif
};
@@ -1196,6 +1423,8 @@ static void usbtouch_disconnect(struct u
/* this will stop IO via close */
input_unregister_device(usbtouch->input);
usb_free_urb(usbtouch->irq);
+ if (usbtouch->type->exit)
+ usbtouch->type->exit(usbtouch);
usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
kfree(usbtouch);
}
--- linux-2.6.32-rc8-next-20091202-orig/drivers/input/touchscreen/Kconfig 2009-12-02 23:52:15.000000000 +0100
+++ linux-2.6.32-rc8-next-20091202/drivers/input/touchscreen/Kconfig 2009-12-03 09:38:29.000000000 +0100
@@ -525,6 +525,11 @@ config TOUCHSCREEN_USB_ETT_TC5UH
bool "ET&T TC5UH touchscreen controler support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
+config TOUCHSCREEN_USB_NEXIO
+ default y
+ bool "NEXIO/iNexio device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
config TOUCHSCREEN_TOUCHIT213
tristate "Sahara TouchIT-213 touchscreen"
select SERIO
--
Ondrej Zary
^ permalink raw reply [flat|nested] 5+ messages in thread