Hello Everybody,
We have recently created Support for Dell ST2220T Touch screen monitor
with in the kernel hierarchy driver/input/touchscreen patch for this
attach with this mail.
Please find the attachment. I have previously also send the patch didn't
got any feedback so sending it again.
thanks
Gopal
>From 9f4e8d811c1b9fc9552f243fb1d577b2cc67553f Mon Sep 17 00:00:00 2001
From: gopal <gtiwari@xxxxxxxxxx>
Date: Tue, 9 Aug 2011 15:15:51 +0530
Subject: [PATCH] We have created Support for DELL-ST2220T TochScreen Monitor
Signed-off-by: gopal <gtiwari@xxxxxxxxxx>
---
drivers/input/touchscreen/usbtouchscreen.c | 99 +++++++++++++++++++++++++++-
1 files changed, 98 insertions(+), 1 deletions(-)
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 73fd664..beef39f 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -59,6 +59,8 @@
#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@xxxxxx>"
#define DRIVER_DESC "USB Touchscreen Driver"
+#define CONFIG_TOUCHSCREEN_USB_DELL_ST2220T
+
static int swap_xy;
module_param(swap_xy, bool, 0644);
MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
@@ -138,6 +140,7 @@ enum {
DEVTYPE_ZYTRONIC,
DEVTYPE_TC45USB,
DEVTYPE_NEXIO,
+ DEVTYPE_DELL_ST2220T,
};
#define USB_DEVICE_HID_CLASS(vend, prod) \
@@ -238,6 +241,10 @@ static const struct usb_device_id usbtouch_devices[] = {
{USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
.driver_info = DEVTYPE_NEXIO},
#endif
+#ifdef CONFIG_TOUCHSCREEN_USB_DELL_ST2220T
+/*Dell-st2220t*/
+{USB_DEVICE(0x1fd2, 0x0064), .driver_info = DEVTYPE_DELL_ST2220T},
+#endif
{}
};
@@ -335,6 +342,84 @@ static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
}
#endif
+/*****************************************************************************
+* Dell-ST2220T
+*/
+#ifdef CONFIG_TOUCHSCREEN_USB_DELL_ST2220T
+#define ST2220T_VENDOR_REQ 0x22
+static int st2220t_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if (pkt[9] != 0xff && pkt[11]) {
+ dev->x = (pkt[10] << 8) | pkt[9];
+ dev->y = (pkt[12] << 8) | pkt[11];
+ dev->x = ((dev->x) * 9) - 0x200;
+ dev->y = (dev->y) * 15;
+ input_report_abs(dev->input, ABS_X, dev->x)
+ input_report_abs(dev->input, ABS_Y, dev->y);
+ }
+ dev->x = (pkt[4] << 8) | pkt[3];
+ dev->y = (pkt[6] << 8) | pkt[5];
+ dev->x = ((dev->x) * 9) - 0x200;
+ dev->y = (dev->y) * 15;
+ return 1;
+}
+
+static int st2220t_init(struct usbtouch_usb *usbtouch)
+{
+ int ret, i;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
+ char *ctrl_buf;
+
+ /*Allocate Memory For Control transfer Buffer */
+
+ ctrl_buf = kmalloc(64, GFP_KERNEL);
+ if (ctrl_buf == NULL) {
+ dbg("%s - Failed : to Get Memory",
+ __func__);
+ return -1;
+ }
+
+ /* Following Control Request is Very Imp
+ To Start USB Interrupt transaction
+ this request is SET_REPORT H->D with Data as 07,02,02 */
+
+ ctrl_buf[0] = 0x07;
+ ctrl_buf[1] = 0x02;
+ ctrl_buf[2] = 0x02;
+ for (i = 0; i < 3; i++) {
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x09,
+ 0x21, 0x0307, 0x00, ctrl_buf,
+ 0x03, USB_CTRL_SET_TIMEOUT);
+ dbg("%s - usb_control_msg - 0x21 0x09 - bytes|err: %d\n",
+ __func__, ret);
+
+ if (ret == 0)
+ break;
+ msleep(150);
+ }
+
+ if (ret < 0) {
+ dbg("%s - Failed to Initialize the DELL-ST2220 Touch Monitor\n",
+ __func__);
+ return -1;
+ }
+
+ msleep(150);
+ for (i = 0; i < 6; i++) {
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ 0x01, 0xA1, 0x308, 0x00, ctrl_buf, 2,
+ USB_CTRL_SET_TIMEOUT);
+
+ dbg("%s - usb_control_msg - bytes|err: %d",
+ __func__, ret);
+ dbg(" %x %x\n", ctrl_buf[0], ctrl_buf[1]);
+ msleep(50);
+ }
+
+ kfree(ctrl_buf);
+ return 0;
+}
+#endif
/*****************************************************************************
* 3M/Microtouch Part
@@ -1139,8 +1224,20 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
.exit = nexio_exit,
},
#endif
-};
+#ifdef CONFIG_TOUCHSCREEN_USB_DELL_ST2220T
+
+ [DEVTYPE_DELL_ST2220T] = {
+ .min_xc = 0x0,
+ .max_xc = 0x4000,
+ .min_yc = 0x0,
+ .max_yc = 0x4000,
+ .rept_size = 0x0e,
+ .read_data = st2220t_read_data,
+ .init = st2220t_init,
+ },
+#endif
+};
/*****************************************************************************
* Generic Part
--
1.7.6
>From 5ef1836407a6c44f889a64e9935069f3820f4e3e Mon Sep 17 00:00:00 2001
From: gopal <gtiwari@xxxxxxxxxx>
Date: Mon, 17 Oct 2011 10:06:50 +0530
Subject: [PATCH] Blacklist the ST2220T from the hid core so as to get the
driver access from the driver/input/touchscreen hierarchy
Signed-off-by: gopal <gtiwari@xxxxxxxxxx>
---
drivers/hid/hid-core.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 242353d..00a8b3a 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1511,6 +1511,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
+ { HID_USB_DEVICE(0x1fd2, 0x0064) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
@@ -1894,6 +1895,7 @@ static const struct hid_device_id hid_mouse_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
+ { HID_USB_DEVICE(0x1fd2, 0x0064) },
{ }
};
--
1.7.6
