From 24ced062a2965645d651ff92bc93b2c1f926474e Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Fri, 17 Nov 2006 22:50:15 +0100 Subject: [PATCH] usbtouchscreen: add support for DMC TSC-10/25 devices Adds support for the DMC TSC-10 and TSC-25 usb touchscreen controllers. Signed-off-by: Holger Schurig Signed-off-by: Daniel Ritz Signed-off-by: Greg Kroah-Hartman --- drivers/usb/input/Kconfig | 6 ++ drivers/usb/input/usbtouchscreen.c | 96 +++++++++++++++++++++++++++++- 2 files changed, 101 insertions(+), 1 deletion(-) diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig index 20db36448ab3..661af7aa6236 100644 --- a/drivers/usb/input/Kconfig +++ b/drivers/usb/input/Kconfig @@ -221,6 +221,7 @@ config USB_TOUCHSCREEN - ITM - some other eTurboTouch - Gunze AHL61 + - DMC TSC-10/25 Have a look at for a usage description and the required user-space stuff. @@ -258,6 +259,11 @@ config USB_TOUCHSCREEN_GUNZE bool "Gunze AHL61 device support" if EMBEDDED depends on USB_TOUCHSCREEN +config USB_TOUCHSCREEN_DMC_TSC10 + default y + bool "DMC TSC-10/25 device support" if EMBEDDED + depends on USB_TOUCHSCREEN + config USB_YEALINK tristate "Yealink usb-p1k voip phone" depends on USB && INPUT && EXPERIMENTAL diff --git a/drivers/usb/input/usbtouchscreen.c b/drivers/usb/input/usbtouchscreen.c index 933ceddf3dee..49704d4ed0e2 100644 --- a/drivers/usb/input/usbtouchscreen.c +++ b/drivers/usb/input/usbtouchscreen.c @@ -8,6 +8,7 @@ * - PanJit TouchSet * - eTurboTouch * - Gunze AHL61 + * - DMC TSC-10/25 * * Copyright (C) 2004-2006 by Daniel Ritz * Copyright (C) by Todd E. Johnson (mtouchusb.c) @@ -30,6 +31,8 @@ * - ITM parts are from itmtouch.c * - 3M parts are from mtouchusb.c * - PanJit parts are from an unmerged driver by Lanslott Gish + * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged + * driver from Marius Vollmer * *****************************************************************************/ @@ -44,7 +47,7 @@ #include -#define DRIVER_VERSION "v0.4" +#define DRIVER_VERSION "v0.5" #define DRIVER_AUTHOR "Daniel Ritz " #define DRIVER_DESC "USB Touchscreen Driver" @@ -103,6 +106,7 @@ enum { DEVTYPE_ITM, DEVTYPE_ETURBO, DEVTYPE_GUNZE, + DEVTYPE_DMC_TSC10, }; static struct usb_device_id usbtouch_devices[] = { @@ -139,6 +143,10 @@ static struct usb_device_id usbtouch_devices[] = { {USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE}, #endif +#ifdef CONFIG_USB_TOUCHSCREEN_DMC_TSC10 + {USB_DEVICE(0x0afa, 0x03e8), .driver_info = DEVTYPE_DMC_TSC10}, +#endif + {} }; @@ -312,6 +320,80 @@ static int gunze_read_data(unsigned char *pkt, int *x, int *y, int *touch, int * } #endif +/***************************************************************************** + * DMC TSC-10/25 Part + * + * Documentation about the controller and it's protocol can be found at + * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf + * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf + */ +#ifdef CONFIG_USB_TOUCHSCREEN_DMC_TSC10 + +/* supported data rates. currently using 130 */ +#define TSC10_RATE_POINT 0x50 +#define TSC10_RATE_30 0x40 +#define TSC10_RATE_50 0x41 +#define TSC10_RATE_80 0x42 +#define TSC10_RATE_100 0x43 +#define TSC10_RATE_130 0x44 +#define TSC10_RATE_150 0x45 + +/* commands */ +#define TSC10_CMD_RESET 0x55 +#define TSC10_CMD_RATE 0x05 +#define TSC10_CMD_DATA1 0x01 + +static int dmc_tsc10_init(struct usbtouch_usb *usbtouch) +{ + struct usb_device *dev = usbtouch->udev; + int ret; + unsigned char buf[2]; + + /* reset */ + buf[0] = buf[1] = 0xFF; + ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0), + TSC10_CMD_RESET, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, buf, 2, USB_CTRL_SET_TIMEOUT); + if (ret < 0) + return ret; + if (buf[0] != 0x06 || buf[1] != 0x00) + return -ENODEV; + + /* set coordinate output rate */ + buf[0] = buf[1] = 0xFF; + ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0), + TSC10_CMD_RATE, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT); + if (ret < 0) + return ret; + if (buf[0] != 0x06 || buf[1] != 0x00) + return -ENODEV; + + /* start sending data */ + ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0), + TSC10_CMD_DATA1, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); + if (ret < 0) + return ret; + + return 0; +} + + +static int dmc_tsc10_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press) +{ + *x = ((pkt[2] & 0x03) << 8) | pkt[1]; + *y = ((pkt[4] & 0x03) << 8) | pkt[3]; + *touch = pkt[0] & 0x01; + + return 1; +} +#endif + + /***************************************************************************** * the different device descriptors */ @@ -389,6 +471,18 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { .read_data = gunze_read_data, }, #endif + +#ifdef CONFIG_USB_TOUCHSCREEN_DMC_TSC10 + [DEVTYPE_DMC_TSC10] = { + .min_xc = 0x0, + .max_xc = 0x03ff, + .min_yc = 0x0, + .max_yc = 0x03ff, + .rept_size = 5, + .init = dmc_tsc10_init, + .read_data = dmc_tsc10_read_data, + }, +#endif }; -- 2.34.1