Commit df561fcd authored by Ondrej Zary's avatar Ondrej Zary Committed by Dmitry Torokhov

Input: usbtouchscreen - add support for IRTOUCHSYSTEMS touchscreens

This patch adds support for IRTOUCHSYSTEMS (or UNITOP) infrared touchscreens.

The touchscreen sends data in 8-byte packets.
BYTE 0 - unknown meaning, seen only one value: 0x54
BYTE 1 - unknown meaning, 3 lowest bits indicate touch state
        values seen: 0x81, 0x82 or 0x83
        bit 0 = set if the screen is touched and was not touched before (touch
        bit 1 = set if the screen is touched and was touched (dragging)
        bit 2 = set if the touch was ended (release)
BYTES 2 and 3 - X position, high-order-byte first, range = 0 to 0x0FFF
BYTES 4 and 5 - Y position, high-order-byte first, range = 0 to 0x0FFF
BYTE 6 - unknown meaning, seen only one value: 0xFF
BYTE 7 - unknown meaning, seen only one value: 0x00
Signed-off-by: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarDaniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 1e2831db
......@@ -177,6 +177,7 @@ config TOUCHSCREEN_USB_COMPOSITE
- some other eTurboTouch
- Gunze AHL61
- DMC TSC-10/25
- IRTOUCHSYSTEMS/UNITOP
Have a look at <http://linux.chapter7.ch/touchkit/> for
a usage description and the required user-space stuff.
......@@ -219,4 +220,9 @@ config TOUCHSCREEN_USB_DMC_TSC10
bool "DMC TSC-10/25 device support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
config TOUCHSCREEN_USB_IRTOUCH
default y
bool "IRTOUCHSYSTEMS/UNITOP device support" if EMBEDDED
depends on TOUCHSCREEN_USB_COMPOSITE
endif
......@@ -9,6 +9,7 @@
* - eTurboTouch
* - Gunze AHL61
* - DMC TSC-10/25
* - IRTOUCHSYSTEMS/UNITOP
*
* Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
* Copyright (C) by Todd E. Johnson (mtouchusb.c)
......@@ -110,6 +111,7 @@ enum {
DEVTYPE_ETURBO,
DEVTYPE_GUNZE,
DEVTYPE_DMC_TSC10,
DEVTYPE_IRTOUCH,
};
static struct usb_device_id usbtouch_devices[] = {
......@@ -150,6 +152,11 @@ static struct usb_device_id usbtouch_devices[] = {
{USB_DEVICE(0x0afa, 0x03e8), .driver_info = DEVTYPE_DMC_TSC10},
#endif
#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
{USB_DEVICE(0x595a, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
{USB_DEVICE(0x6615, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
#endif
{}
};
......@@ -415,6 +422,21 @@ static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#endif
/*****************************************************************************
* IRTOUCH Part
*/
#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
{
dev->x = (pkt[3] << 8) | pkt[2];
dev->y = (pkt[5] << 8) | pkt[4];
dev->touch = (pkt[1] & 0x03) ? 1 : 0;
return 1;
}
#endif
/*****************************************************************************
* the different device descriptors
*/
......@@ -504,6 +526,17 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
.read_data = dmc_tsc10_read_data,
},
#endif
#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
[DEVTYPE_IRTOUCH] = {
.min_xc = 0x0,
.max_xc = 0x0fff,
.min_yc = 0x0,
.max_yc = 0x0fff,
.rept_size = 8,
.read_data = irtouch_read_data,
},
#endif
};
......
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