Input: usbtouchscreen - add support for IdealTEK URTC1000

This patch adds support for IdealTEK URTC1000 touchscreen controllers.

Documentation can be downloaded at:

	http://projects.tbmn.org/cgi-bin/trac.cgi/wiki/urtc-1000

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index f929fcd..f787ee6 100644 (file)
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -191,6 +191,7 @@ config TOUCHSCREEN_USB_COMPOSITE
          - Gunze AHL61
          - DMC TSC-10/25
          - IRTOUCHSYSTEMS/UNITOP
+         - IdealTEK URTC1000
 
          Have a look at <http://linux.chapter7.ch/touchkit/> for
          a usage description and the required user-space stuff.
@@ -238,4 +239,9 @@ config TOUCHSCREEN_USB_IRTOUCH
        bool "IRTOUCHSYSTEMS/UNITOP device support" if EMBEDDED
        depends on TOUCHSCREEN_USB_COMPOSITE
 
+config TOUCHSCREEN_USB_IDEALTEK
+       default y
+       bool "IdealTEK URTC1000 device support" if EMBEDDED
+       depends on TOUCHSCREEN_USB_COMPOSITE
+
 endif

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index b407028..796b837 100644 (file)
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -10,6 +10,7 @@
  *  - Gunze AHL61
  *  - DMC TSC-10/25
  *  - IRTOUCHSYSTEMS/UNITOP
+ *  - IdealTEK URTC1000
  *
  * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
  * Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -92,7 +93,7 @@ struct usbtouch_usb {
 };
 
 
-#if defined(CONFIG_TOUCHSCREEN_USB_EGALAX) || defined(CONFIG_TOUCHSCREEN_USB_ETURBO)
+#if defined(CONFIG_TOUCHSCREEN_USB_EGALAX) || defined(CONFIG_TOUCHSCREEN_USB_ETURBO) || defined(CONFIG_TOUCHSCREEN_USB_IDEALTEK)
 #define MULTI_PACKET
 #endif
 
@@ -112,6 +113,7 @@ enum {
        DEVTYPE_GUNZE,
        DEVTYPE_DMC_TSC10,
        DEVTYPE_IRTOUCH,
+       DEVTYPE_IDEALTEK,
 };
 
 static struct usb_device_id usbtouch_devices[] = {
@@ -157,6 +159,10 @@ static struct usb_device_id usbtouch_devices[] = {
        {USB_DEVICE(0x6615, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
 #endif
 
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+       {USB_DEVICE(0x1391, 0x1000), .driver_info = DEVTYPE_IDEALTEK},
+#endif
+
        {}
 };
 
@@ -438,6 +444,43 @@ static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 
 
 /*****************************************************************************
+ * IdealTEK URTC1000 Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+static int idealtek_get_pkt_len(unsigned char *buf, int len)
+{
+       if (buf[0] & 0x80)
+               return 5;
+       if (buf[0] == 0x01)
+               return len;
+       return 0;
+}
+
+static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+       switch (pkt[0] & 0x98) {
+       case 0x88:
+               /* touch data in IdealTEK mode */
+               dev->x = (pkt[1] << 5) | (pkt[2] >> 2);
+               dev->y = (pkt[3] << 5) | (pkt[4] >> 2);
+               dev->touch = (pkt[0] & 0x40) ? 1 : 0;
+               return 1;
+
+       case 0x98:
+               /* touch data in MT emulation mode */
+               dev->x = (pkt[2] << 5) | (pkt[1] >> 2);
+               dev->y = (pkt[4] << 5) | (pkt[3] >> 2);
+               dev->touch = (pkt[0] & 0x40) ? 1 : 0;
+               return 1;
+
+       default:
+               return 0;
+       }
+}
+#endif
+
+
+/*****************************************************************************
  * the different device descriptors
  */
 static struct usbtouch_device_info usbtouch_dev_info[] = {
@@ -537,6 +580,20 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
                .read_data      = irtouch_read_data,
        },
 #endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+       [DEVTYPE_IDEALTEK] = {
+               .min_xc         = 0x0,
+               .max_xc         = 0x0fff,
+               .min_yc         = 0x0,
+               .max_yc         = 0x0fff,
+               .rept_size      = 8,
+               .flags          = USBTOUCH_FLG_BUFFER,
+               .process_pkt    = usbtouch_process_multi,
+               .get_pkt_len    = idealtek_get_pkt_len,
+               .read_data      = idealtek_read_data,
+       },
+#endif
 };