Faytech Automotive Touchscreen Monitor using eGalax 4000 series driver.

Faytech reports back as 0EEF:0001 version 100

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 4104103..671be7c 100644 (file)
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -536,6 +536,7 @@ config TOUCHSCREEN_USB_COMPOSITE
        help
          USB Touchscreen driver for:
          - eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700)
+         - Faytech Touchscreen Automotive Monitor (includes 7, 9 and 10 inch units)
          - PanJit TouchSet USB
          - 3M MicroTouch USB (EX II series)
          - ITM
@@ -571,6 +572,16 @@ config TOUCHSCREEN_USB_EGALAX
        bool "eGalax, eTurboTouch CT-410/510/700 device support" if EXPERT
        depends on TOUCHSCREEN_USB_COMPOSITE
 
+config TOUCHSCREEN_USB_EGALAX_REVERSE
+       default n
+       depends on TOUCHSCREEN_USB_EGALAX
+       bool "eGalax Special reverse MSB / LSB Packet" if EXPERT
+       depends on TOUCHSCREEN_USB_EGALAX
+        help
+          Special reversed MSB / LSB packet and Reversed X / Y
+         When selected it will disable 0xeef:0001 from the HID system
+          - Faytech Touch screen monitor FT0100TM, FT0070TM
+
 config TOUCHSCREEN_USB_PANJIT
        default y
        bool "PanJit device support" if EXPERT

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 73fd664..b417a97 100644 (file)
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -123,6 +123,7 @@ struct usbtouch_usb {
 enum {
        DEVTYPE_IGNORE = -1,
        DEVTYPE_EGALAX,
+       DEVTYPE_EGALAX2,
        DEVTYPE_PANJIT,
        DEVTYPE_3M,
        DEVTYPE_ITM,
@@ -150,6 +151,14 @@ enum {
        .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE
 
 static const struct usb_device_id usbtouch_devices[] = {
+
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX_REVERSE
+       {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX2},
+       {USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX2},
+       {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX2},
+       {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX2},
+#endif
+
 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
        /* ignore the HID capable devices, handled by usbhid */
        {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
@@ -276,6 +285,51 @@ static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 }
 #endif
 
+/*****************************************************************************
+ * Faytech Monitor part
+ */
+
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX_REVERSE
+
+#ifndef MULTI_PACKET
+#define MULTI_PACKET
+#endif
+
+#define EGALAX2_PKT_TYPE_MASK          0xFE
+#define EGALAX2_PKT_TYPE_REPT          0x80
+#define EGALAX2_PKT_TYPE_DIAG          0x0A
+
+int x0, x1, x2, x3, x4, x5 = 0;
+
+static int egalax2_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+       if ((pkt[0] & EGALAX2_PKT_TYPE_MASK) != EGALAX2_PKT_TYPE_REPT)
+               return 0;
+
+       dev->y = ((pkt[4] & 0x0F) << 7) | (pkt[3] & 0x7F);
+       dev->x = ((pkt[2] & 0x0F) << 7) | (pkt[1] & 0x7F);
+       dev->touch = pkt[0] & 0x01;
+
+       return 1;
+}
+
+static int egalax2_get_pkt_len(unsigned char *buf, int len)
+{
+       switch (buf[0] & EGALAX2_PKT_TYPE_MASK) {
+       case EGALAX2_PKT_TYPE_REPT:
+               return 5;
+
+       case EGALAX2_PKT_TYPE_DIAG:
+               if (len < 2)
+                       return -1;
+
+               return buf[1] + 2;
+       }
+
+       return 0;
+}
+#endif
+
 
 /*****************************************************************************
  * eGalax part
@@ -953,6 +1007,19 @@ static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
 #endif
 
 static struct usbtouch_device_info usbtouch_dev_info[] = {
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX_REVERSE
+       [DEVTYPE_EGALAX2] = {
+               .min_xc         = 0x0,
+               .max_xc         = 0x07ff,
+               .min_yc         = 0x0,
+               .max_yc         = 0x07ff,
+               .rept_size      = 8,
+               .process_pkt    = usbtouch_process_multi,
+               .get_pkt_len    = egalax2_get_pkt_len,
+               .read_data      = egalax2_read_data,
+       },
+#endif
+
 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
        [DEVTYPE_EGALAX] = {
                .min_xc         = 0x0,