From df561fcd445c9cf9f4fff98ea795a0e72b7dc1e1 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 3 Jul 2007 01:55:03 -0400 Subject: [PATCH] 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: Ondrej Zary Signed-off-by: Daniel Ritz Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/Kconfig | 6 ++++ drivers/input/touchscreen/usbtouchscreen.c | 33 ++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index e5cca9bd04..6937177980 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -177,6 +177,7 @@ config TOUCHSCREEN_USB_COMPOSITE - some other eTurboTouch - Gunze AHL61 - DMC TSC-10/25 + - IRTOUCHSYSTEMS/UNITOP Have a look at 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 diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index e3f22852bd..b407028ffc 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -9,6 +9,7 @@ * - eTurboTouch * - Gunze AHL61 * - DMC TSC-10/25 + * - IRTOUCHSYSTEMS/UNITOP * * Copyright (C) 2004-2006 by Daniel Ritz * 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 }; -- 2.39.5