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Input: usbtouchscreen - add support for ET&T TC4UM touchscreen controller 

This patch adds support for the ET&T TC4UM 4-wire USB touchscreen
controller and tries to reuse the bits for TC5UH controller in kernel
already. Data interface is same.

Tested-by: Roger Pueyo Centelles <rogerpueyo@rogerpueyo.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Petr Štetiar 2010-06-28 09:38:48 -07:00 коммит произвёл Dmitry Torokhov
Родитель 7804302b14
Коммит 38771bb440
2 изменённых файлов: 14 добавлений и 11 удалений
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4
drivers/input/touchscreen/Kconfig
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@ -540,9 +540,9 @@ config TOUCHSCREEN_USB_ZYTRONIC
bool "Zytronic controller" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
config TOUCHSCREEN_USB_ETT_TC5UH
config TOUCHSCREEN_USB_ETT_TC45USB
default y
bool "ET&T TC5UH touchscreen controler support" if EMBEDDED
bool "ET&T USB series TC4UM/TC5UH touchscreen controler support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
config TOUCHSCREEN_USB_NEXIO

21
drivers/input/touchscreen/usbtouchscreen.c
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@ -135,7 +135,7 @@ enum {
DEVTYPE_JASTEC,
DEVTYPE_E2I,
DEVTYPE_ZYTRONIC,
DEVTYPE_TC5UH,
DEVTYPE_TC45USB,
DEVTYPE_NEXIO,
};
@ -222,8 +222,11 @@ static const struct usb_device_id usbtouch_devices[] = {
{USB_DEVICE(0x14c8, 0x0003), .driver_info = DEVTYPE_ZYTRONIC},
#endif
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC5UH
{USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC5UH},
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
/* TC5UH */
{USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC45USB},
/* TC4UM */
{USB_DEVICE(0x0664, 0x0306), .driver_info = DEVTYPE_TC45USB},
#endif
#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
@ -574,10 +577,10 @@ static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#endif
/*****************************************************************************
* ET&T TC5UH part
* ET&T TC5UH/TC4UM part
*/
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC5UH
static int tc5uh_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
{
dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
@ -1106,14 +1109,14 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
},
#endif
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC5UH
[DEVTYPE_TC5UH] = {
#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
[DEVTYPE_TC45USB] = {
.min_xc = 0x0,
.max_xc = 0x0fff,
.min_yc = 0x0,
.max_yc = 0x0fff,
.rept_size = 5,
.read_data = tc5uh_read_data,
.read_data = tc45usb_read_data,
},
#endif