#
-# Mouse driver configuration
+# Touchscreen driver configuration
#
menuconfig INPUT_TOUCHSCREEN
bool "Touchscreens"
config TOUCHSCREEN_CORGI
tristate "SharpSL (Corgi and Spitz series) touchscreen driver"
depends on PXA_SHARPSL
- default y
+ default y
help
- Say Y here to enable the driver for the touchscreen on the
+ Say Y here to enable the driver for the touchscreen on the
Sharp SL-C7xx and SL-Cxx00 series of PDAs.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called ucb1400_ts.
+config TOUCHSCREEN_USB_COMPOSITE
+ tristate "USB Touchscreen Driver"
+ select USB
+ help
+ USB Touchscreen driver for:
+ - eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700)
+ - PanJit TouchSet USB
+ - 3M MicroTouch USB (EX II series)
+ - ITM
+ - some other eTurboTouch
+ - Gunze AHL61
+ - DMC TSC-10/25
+
+ Have a look at <http://linux.chapter7.ch/touchkit/> for
+ a usage description and the required user-space stuff.
+
+ To compile this driver as a module, choose M here: the
+ module will be called usbtouchscreen.
+
+config TOUCHSCREEN_USB_EGALAX
+ default y
+ bool "eGalax, eTurboTouch CT-410/510/700 device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_PANJIT
+ default y
+ bool "PanJit device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_3M
+ default y
+ bool "3M/Microtouch EX II series device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ITM
+ default y
+ bool "ITM device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ETURBO
+ default y
+ bool "eTurboTouch (non-eGalax compatible) device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_GUNZE
+ default y
+ bool "Gunze AHL61 device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_DMC_TSC10
+ default y
+ bool "DMC TSC-10/25 device support" if EMBEDDED
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
endif
#
-# Makefile for the mouse drivers.
+# Makefile for the touchscreen drivers.
#
# Each configuration option enables a list of files.
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
-obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
-obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
-obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
-obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
-obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
-obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
-obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
+obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
+obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
+obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
+obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
--- /dev/null
+/******************************************************************************
+ * usbtouchscreen.c
+ * Driver for USB Touchscreens, supporting those devices:
+ * - eGalax Touchkit
+ * includes eTurboTouch CT-410/510/700
+ * - 3M/Microtouch EX II series
+ * - ITM
+ * - PanJit TouchSet
+ * - eTurboTouch
+ * - Gunze AHL61
+ * - DMC TSC-10/25
+ *
+ * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
+ * Copyright (C) by Todd E. Johnson (mtouchusb.c)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Driver is based on touchkitusb.c
+ * - 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
+ *
+ *****************************************************************************/
+
+//#define DEBUG
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+
+
+#define DRIVER_VERSION "v0.5"
+#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
+#define DRIVER_DESC "USB Touchscreen Driver"
+
+static int swap_xy;
+module_param(swap_xy, bool, 0644);
+MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
+
+/* device specifc data/functions */
+struct usbtouch_usb;
+struct usbtouch_device_info {
+ int min_xc, max_xc;
+ int min_yc, max_yc;
+ int min_press, max_press;
+ int rept_size;
+ int flags;
+
+ void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);
+ int (*get_pkt_len) (unsigned char *pkt, int len);
+ int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
+ int (*init) (struct usbtouch_usb *usbtouch);
+};
+
+#define USBTOUCH_FLG_BUFFER 0x01
+
+
+/* a usbtouch device */
+struct usbtouch_usb {
+ unsigned char *data;
+ dma_addr_t data_dma;
+ unsigned char *buffer;
+ int buf_len;
+ struct urb *irq;
+ struct usb_device *udev;
+ struct input_dev *input;
+ struct usbtouch_device_info *type;
+ char name[128];
+ char phys[64];
+
+ int x, y;
+ int touch, press;
+};
+
+
+#if defined(CONFIG_USB_TOUCHSCREEN_EGALAX) || defined(CONFIG_USB_TOUCHSCREEN_ETURBO)
+#define MULTI_PACKET
+#endif
+
+#ifdef MULTI_PACKET
+static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len);
+#endif
+
+/* device types */
+enum {
+ DEVTPYE_DUMMY = -1,
+ DEVTYPE_EGALAX,
+ DEVTYPE_PANJIT,
+ DEVTYPE_3M,
+ DEVTYPE_ITM,
+ DEVTYPE_ETURBO,
+ DEVTYPE_GUNZE,
+ DEVTYPE_DMC_TSC10,
+};
+
+static struct usb_device_id usbtouch_devices[] = {
+#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
+ {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX},
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
+ {USB_DEVICE(0x134c, 0x0001), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0002), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0003), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0004), .driver_info = DEVTYPE_PANJIT},
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_3M
+ {USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_ITM
+ {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
+ {USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
+ {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
+
+ {}
+};
+
+
+/*****************************************************************************
+ * eGalax part
+ */
+
+#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
+
+#define EGALAX_PKT_TYPE_MASK 0xFE
+#define EGALAX_PKT_TYPE_REPT 0x80
+#define EGALAX_PKT_TYPE_DIAG 0x0A
+
+static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
+ return 0;
+
+ dev->x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);
+ dev->y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+
+static int egalax_get_pkt_len(unsigned char *buf, int len)
+{
+ switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
+ case EGALAX_PKT_TYPE_REPT:
+ return 5;
+
+ case EGALAX_PKT_TYPE_DIAG:
+ if (len < 2)
+ return -1;
+
+ return buf[1] + 2;
+ }
+
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * PanJit Part
+ */
+#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
+static int panjit_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];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * 3M/Microtouch Part
+ */
+#ifdef CONFIG_USB_TOUCHSCREEN_3M
+
+#define MTOUCHUSB_ASYNC_REPORT 1
+#define MTOUCHUSB_RESET 7
+#define MTOUCHUSB_REQ_CTRLLR_ID 10
+
+static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = (pkt[8] << 8) | pkt[7];
+ dev->y = (pkt[10] << 8) | pkt[9];
+ dev->touch = (pkt[2] & 0x40) ? 1 : 0;
+
+ return 1;
+}
+
+static int mtouch_init(struct usbtouch_usb *usbtouch)
+{
+ int ret, i;
+
+ ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ MTOUCHUSB_RESET,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",
+ __FUNCTION__, ret);
+ if (ret < 0)
+ return ret;
+ msleep(150);
+
+ for (i = 0; i < 3; i++) {
+ ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
+ MTOUCHUSB_ASYNC_REPORT,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
+ __FUNCTION__, ret);
+ if (ret >= 0)
+ break;
+ if (ret != -EPIPE)
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * ITM Part
+ */
+#ifdef CONFIG_USB_TOUCHSCREEN_ITM
+static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ int touch;
+ /*
+ * ITM devices report invalid x/y data if not touched.
+ * if the screen was touched before but is not touched any more
+ * report touch as 0 with the last valid x/y data once. then stop
+ * reporting data until touched again.
+ */
+ dev->press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
+
+ touch = ~pkt[7] & 0x20;
+ if (!touch) {
+ if (dev->touch) {
+ dev->touch = 0;
+ return 1;
+ }
+
+ return 0;
+ }
+
+ dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
+ dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
+ dev->touch = touch;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * eTurboTouch part
+ */
+#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
+static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ unsigned int shift;
+
+ /* packets should start with sync */
+ if (!(pkt[0] & 0x80))
+ return 0;
+
+ shift = (6 - (pkt[0] & 0x03));
+ dev->x = ((pkt[3] << 7) | pkt[4]) >> shift;
+ dev->y = ((pkt[1] << 7) | pkt[2]) >> shift;
+ dev->touch = (pkt[0] & 0x10) ? 1 : 0;
+
+ return 1;
+}
+
+static int eturbo_get_pkt_len(unsigned char *buf, int len)
+{
+ if (buf[0] & 0x80)
+ return 5;
+ if (buf[0] == 0x01)
+ return 3;
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * Gunze part
+ */
+#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
+static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
+ return 0;
+
+ dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
+ dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
+ dev->touch = pkt[0] & 0x20;
+
+ return 1;
+}
+#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(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[2] & 0x03) << 8) | pkt[1];
+ dev->y = ((pkt[4] & 0x03) << 8) | pkt[3];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * the different device descriptors
+ */
+static struct usbtouch_device_info usbtouch_dev_info[] = {
+#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
+ [DEVTYPE_EGALAX] = {
+ .min_xc = 0x0,
+ .max_xc = 0x07ff,
+ .min_yc = 0x0,
+ .max_yc = 0x07ff,
+ .rept_size = 16,
+ .flags = USBTOUCH_FLG_BUFFER,
+ .process_pkt = usbtouch_process_multi,
+ .get_pkt_len = egalax_get_pkt_len,
+ .read_data = egalax_read_data,
+ },
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
+ [DEVTYPE_PANJIT] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 8,
+ .read_data = panjit_read_data,
+ },
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_3M
+ [DEVTYPE_3M] = {
+ .min_xc = 0x0,
+ .max_xc = 0x4000,
+ .min_yc = 0x0,
+ .max_yc = 0x4000,
+ .rept_size = 11,
+ .read_data = mtouch_read_data,
+ .init = mtouch_init,
+ },
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_ITM
+ [DEVTYPE_ITM] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .max_press = 0xff,
+ .rept_size = 8,
+ .read_data = itm_read_data,
+ },
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
+ [DEVTYPE_ETURBO] = {
+ .min_xc = 0x0,
+ .max_xc = 0x07ff,
+ .min_yc = 0x0,
+ .max_yc = 0x07ff,
+ .rept_size = 8,
+ .flags = USBTOUCH_FLG_BUFFER,
+ .process_pkt = usbtouch_process_multi,
+ .get_pkt_len = eturbo_get_pkt_len,
+ .read_data = eturbo_read_data,
+ },
+#endif
+
+#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
+ [DEVTYPE_GUNZE] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 4,
+ .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
+};
+
+
+/*****************************************************************************
+ * Generic Part
+ */
+static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len)
+{
+ struct usbtouch_device_info *type = usbtouch->type;
+
+ if (!type->read_data(usbtouch, pkt))
+ return;
+
+ input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch);
+
+ if (swap_xy) {
+ input_report_abs(usbtouch->input, ABS_X, usbtouch->y);
+ input_report_abs(usbtouch->input, ABS_Y, usbtouch->x);
+ } else {
+ input_report_abs(usbtouch->input, ABS_X, usbtouch->x);
+ input_report_abs(usbtouch->input, ABS_Y, usbtouch->y);
+ }
+ if (type->max_press)
+ input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press);
+ input_sync(usbtouch->input);
+}
+
+
+#ifdef MULTI_PACKET
+static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len)
+{
+ unsigned char *buffer;
+ int pkt_len, pos, buf_len, tmp;
+
+ /* process buffer */
+ if (unlikely(usbtouch->buf_len)) {
+ /* try to get size */
+ pkt_len = usbtouch->type->get_pkt_len(
+ usbtouch->buffer, usbtouch->buf_len);
+
+ /* drop? */
+ if (unlikely(!pkt_len))
+ goto out_flush_buf;
+
+ /* need to append -pkt_len bytes before able to get size */
+ if (unlikely(pkt_len < 0)) {
+ int append = -pkt_len;
+ if (unlikely(append > len))
+ append = len;
+ if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
+ goto out_flush_buf;
+ memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
+ usbtouch->buf_len += append;
+
+ pkt_len = usbtouch->type->get_pkt_len(
+ usbtouch->buffer, usbtouch->buf_len);
+ if (pkt_len < 0)
+ return;
+ }
+
+ /* append */
+ tmp = pkt_len - usbtouch->buf_len;
+ if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
+ goto out_flush_buf;
+ memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
+ usbtouch_process_pkt(usbtouch, usbtouch->buffer, pkt_len);
+
+ buffer = pkt + tmp;
+ buf_len = len - tmp;
+ } else {
+ buffer = pkt;
+ buf_len = len;
+ }
+
+ /* loop over the received packet, process */
+ pos = 0;
+ while (pos < buf_len) {
+ /* get packet len */
+ pkt_len = usbtouch->type->get_pkt_len(buffer + pos, len);
+
+ /* unknown packet: drop everything */
+ if (unlikely(!pkt_len))
+ goto out_flush_buf;
+
+ /* full packet: process */
+ if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
+ usbtouch_process_pkt(usbtouch, buffer + pos, pkt_len);
+ } else {
+ /* incomplete packet: save in buffer */
+ memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
+ usbtouch->buf_len = buf_len - pos;
+ return;
+ }
+ pos += pkt_len;
+ }
+
+out_flush_buf:
+ usbtouch->buf_len = 0;
+ return;
+}
+#endif
+
+
+static void usbtouch_irq(struct urb *urb)
+{
+ struct usbtouch_usb *usbtouch = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ETIME:
+ /* this urb is timing out */
+ dbg("%s - urb timed out - was the device unplugged?",
+ __FUNCTION__);
+ return;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __FUNCTION__, urb->status);
+ goto exit;
+ }
+
+ usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length);
+
+exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err("%s - usb_submit_urb failed with result: %d",
+ __FUNCTION__, retval);
+}
+
+static int usbtouch_open(struct input_dev *input)
+{
+ struct usbtouch_usb *usbtouch = input_get_drvdata(input);
+
+ usbtouch->irq->dev = usbtouch->udev;
+
+ if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void usbtouch_close(struct input_dev *input)
+{
+ struct usbtouch_usb *usbtouch = input_get_drvdata(input);
+
+ usb_kill_urb(usbtouch->irq);
+}
+
+
+static void usbtouch_free_buffers(struct usb_device *udev,
+ struct usbtouch_usb *usbtouch)
+{
+ usb_buffer_free(udev, usbtouch->type->rept_size,
+ usbtouch->data, usbtouch->data_dma);
+ kfree(usbtouch->buffer);
+}
+
+
+static int usbtouch_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usbtouch_usb *usbtouch;
+ struct input_dev *input_dev;
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct usbtouch_device_info *type;
+ int err = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+
+ usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!usbtouch || !input_dev)
+ goto out_free;
+
+ type = &usbtouch_dev_info[id->driver_info];
+ usbtouch->type = type;
+ if (!type->process_pkt)
+ type->process_pkt = usbtouch_process_pkt;
+
+ usbtouch->data = usb_buffer_alloc(udev, type->rept_size,
+ GFP_KERNEL, &usbtouch->data_dma);
+ if (!usbtouch->data)
+ goto out_free;
+
+ if (type->flags & USBTOUCH_FLG_BUFFER) {
+ usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);
+ if (!usbtouch->buffer)
+ goto out_free_buffers;
+ }
+
+ usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!usbtouch->irq) {
+ dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__);
+ goto out_free_buffers;
+ }
+
+ usbtouch->udev = udev;
+ usbtouch->input = input_dev;
+
+ if (udev->manufacturer)
+ strlcpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(usbtouch->name, " ", sizeof(usbtouch->name));
+ strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));
+ }
+
+ if (!strlen(usbtouch->name))
+ snprintf(usbtouch->name, sizeof(usbtouch->name),
+ "USB Touchscreen %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+
+ usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
+ strlcpy(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
+
+ input_dev->name = usbtouch->name;
+ input_dev->phys = usbtouch->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, usbtouch);
+
+ input_dev->open = usbtouch_open;
+ input_dev->close = usbtouch_close;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);
+ if (type->max_press)
+ input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
+ type->max_press, 0, 0);
+
+ usb_fill_int_urb(usbtouch->irq, usbtouch->udev,
+ usb_rcvintpipe(usbtouch->udev, endpoint->bEndpointAddress),
+ usbtouch->data, type->rept_size,
+ usbtouch_irq, usbtouch, endpoint->bInterval);
+
+ usbtouch->irq->dev = usbtouch->udev;
+ usbtouch->irq->transfer_dma = usbtouch->data_dma;
+ usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* device specific init */
+ if (type->init) {
+ err = type->init(usbtouch);
+ if (err) {
+ dbg("%s - type->init() failed, err: %d", __FUNCTION__, err);
+ goto out_free_buffers;
+ }
+ }
+
+ err = input_register_device(usbtouch->input);
+ if (err) {
+ dbg("%s - input_register_device failed, err: %d", __FUNCTION__, err);
+ goto out_free_buffers;
+ }
+
+ usb_set_intfdata(intf, usbtouch);
+
+ return 0;
+
+out_free_buffers:
+ usbtouch_free_buffers(udev, usbtouch);
+out_free:
+ input_free_device(input_dev);
+ kfree(usbtouch);
+ return err;
+}
+
+static void usbtouch_disconnect(struct usb_interface *intf)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+
+ dbg("%s - called", __FUNCTION__);
+
+ if (!usbtouch)
+ return;
+
+ dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__);
+ usb_set_intfdata(intf, NULL);
+ usb_kill_urb(usbtouch->irq);
+ input_unregister_device(usbtouch->input);
+ usb_free_urb(usbtouch->irq);
+ usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
+ kfree(usbtouch);
+}
+
+MODULE_DEVICE_TABLE(usb, usbtouch_devices);
+
+static struct usb_driver usbtouch_driver = {
+ .name = "usbtouchscreen",
+ .probe = usbtouch_probe,
+ .disconnect = usbtouch_disconnect,
+ .id_table = usbtouch_devices,
+};
+
+static int __init usbtouch_init(void)
+{
+ return usb_register(&usbtouch_driver);
+}
+
+static void __exit usbtouch_cleanup(void)
+{
+ usb_deregister(&usbtouch_driver);
+}
+
+module_init(usbtouch_init);
+module_exit(usbtouch_cleanup);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("touchkitusb");
+MODULE_ALIAS("itmtouch");
+MODULE_ALIAS("mtouchusb");
obj-$(CONFIG_USB) += storage/
obj-$(CONFIG_USB_ATI_REMOTE) += input/
-obj-$(CONFIG_USB_MTOUCH) += input/
obj-$(CONFIG_USB_POWERMATE) += input/
obj-$(CONFIG_USB_XPAD) += input/
To compile this driver as a module, choose M here: the
module will be called powermate.
-config USB_TOUCHSCREEN
- tristate "USB Touchscreen Driver"
- depends on USB && INPUT
- ---help---
- USB Touchscreen driver for:
- - eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700)
- - PanJit TouchSet USB
- - 3M MicroTouch USB (EX II series)
- - ITM
- - some other eTurboTouch
- - Gunze AHL61
- - DMC TSC-10/25
-
- Have a look at <http://linux.chapter7.ch/touchkit/> for
- a usage description and the required user-space stuff.
-
- To compile this driver as a module, choose M here: the
- module will be called usbtouchscreen.
-
-config USB_TOUCHSCREEN_EGALAX
- default y
- bool "eGalax, eTurboTouch CT-410/510/700 device support" if EMBEDDED
- depends on USB_TOUCHSCREEN
-
-config USB_TOUCHSCREEN_PANJIT
- default y
- bool "PanJit device support" if EMBEDDED
- depends on USB_TOUCHSCREEN
-
-config USB_TOUCHSCREEN_3M
- default y
- bool "3M/Microtouch EX II series device support" if EMBEDDED
- depends on USB_TOUCHSCREEN
-
-config USB_TOUCHSCREEN_ITM
- default y
- bool "ITM device support" if EMBEDDED
- depends on USB_TOUCHSCREEN
-
-config USB_TOUCHSCREEN_ETURBO
- default y
- bool "eTurboTouch (non-eGalax compatible) device support" if EMBEDDED
- depends on USB_TOUCHSCREEN
-
-config USB_TOUCHSCREEN_GUNZE
- default y
- 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
obj-$(CONFIG_USB_ATI_REMOTE) += ati_remote.o
obj-$(CONFIG_USB_ATI_REMOTE2) += ati_remote2.o
obj-$(CONFIG_USB_KEYSPAN_REMOTE) += keyspan_remote.o
-obj-$(CONFIG_USB_TOUCHSCREEN) += usbtouchscreen.o
obj-$(CONFIG_USB_POWERMATE) += powermate.o
obj-$(CONFIG_USB_YEALINK) += yealink.o
obj-$(CONFIG_USB_XPAD) += xpad.o
+++ /dev/null
-/******************************************************************************
- * usbtouchscreen.c
- * Driver for USB Touchscreens, supporting those devices:
- * - eGalax Touchkit
- * includes eTurboTouch CT-410/510/700
- * - 3M/Microtouch EX II series
- * - ITM
- * - PanJit TouchSet
- * - eTurboTouch
- * - Gunze AHL61
- * - DMC TSC-10/25
- *
- * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch>
- * Copyright (C) by Todd E. Johnson (mtouchusb.c)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Driver is based on touchkitusb.c
- * - 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
- *
- *****************************************************************************/
-
-//#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/usb.h>
-#include <linux/usb/input.h>
-
-
-#define DRIVER_VERSION "v0.5"
-#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
-#define DRIVER_DESC "USB Touchscreen Driver"
-
-static int swap_xy;
-module_param(swap_xy, bool, 0644);
-MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
-
-/* device specifc data/functions */
-struct usbtouch_usb;
-struct usbtouch_device_info {
- int min_xc, max_xc;
- int min_yc, max_yc;
- int min_press, max_press;
- int rept_size;
- int flags;
-
- void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);
- int (*get_pkt_len) (unsigned char *pkt, int len);
- int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
- int (*init) (struct usbtouch_usb *usbtouch);
-};
-
-#define USBTOUCH_FLG_BUFFER 0x01
-
-
-/* a usbtouch device */
-struct usbtouch_usb {
- unsigned char *data;
- dma_addr_t data_dma;
- unsigned char *buffer;
- int buf_len;
- struct urb *irq;
- struct usb_device *udev;
- struct input_dev *input;
- struct usbtouch_device_info *type;
- char name[128];
- char phys[64];
-
- int x, y;
- int touch, press;
-};
-
-
-#if defined(CONFIG_USB_TOUCHSCREEN_EGALAX) || defined(CONFIG_USB_TOUCHSCREEN_ETURBO)
-#define MULTI_PACKET
-#endif
-
-#ifdef MULTI_PACKET
-static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
- unsigned char *pkt, int len);
-#endif
-
-/* device types */
-enum {
- DEVTPYE_DUMMY = -1,
- DEVTYPE_EGALAX,
- DEVTYPE_PANJIT,
- DEVTYPE_3M,
- DEVTYPE_ITM,
- DEVTYPE_ETURBO,
- DEVTYPE_GUNZE,
- DEVTYPE_DMC_TSC10,
-};
-
-static struct usb_device_id usbtouch_devices[] = {
-#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
- {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX},
- {USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX},
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
- {USB_DEVICE(0x134c, 0x0001), .driver_info = DEVTYPE_PANJIT},
- {USB_DEVICE(0x134c, 0x0002), .driver_info = DEVTYPE_PANJIT},
- {USB_DEVICE(0x134c, 0x0003), .driver_info = DEVTYPE_PANJIT},
- {USB_DEVICE(0x134c, 0x0004), .driver_info = DEVTYPE_PANJIT},
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_3M
- {USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_ITM
- {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
- {USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
- {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
-
- {}
-};
-
-
-/*****************************************************************************
- * eGalax part
- */
-
-#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
-
-#define EGALAX_PKT_TYPE_MASK 0xFE
-#define EGALAX_PKT_TYPE_REPT 0x80
-#define EGALAX_PKT_TYPE_DIAG 0x0A
-
-static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
- return 0;
-
- dev->x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);
- dev->y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);
- dev->touch = pkt[0] & 0x01;
-
- return 1;
-}
-
-static int egalax_get_pkt_len(unsigned char *buf, int len)
-{
- switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
- case EGALAX_PKT_TYPE_REPT:
- return 5;
-
- case EGALAX_PKT_TYPE_DIAG:
- if (len < 2)
- return -1;
-
- return buf[1] + 2;
- }
-
- return 0;
-}
-#endif
-
-
-/*****************************************************************************
- * PanJit Part
- */
-#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
-static int panjit_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];
- dev->touch = pkt[0] & 0x01;
-
- return 1;
-}
-#endif
-
-
-/*****************************************************************************
- * 3M/Microtouch Part
- */
-#ifdef CONFIG_USB_TOUCHSCREEN_3M
-
-#define MTOUCHUSB_ASYNC_REPORT 1
-#define MTOUCHUSB_RESET 7
-#define MTOUCHUSB_REQ_CTRLLR_ID 10
-
-static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- dev->x = (pkt[8] << 8) | pkt[7];
- dev->y = (pkt[10] << 8) | pkt[9];
- dev->touch = (pkt[2] & 0x40) ? 1 : 0;
-
- return 1;
-}
-
-static int mtouch_init(struct usbtouch_usb *usbtouch)
-{
- int ret, i;
-
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
- MTOUCHUSB_RESET,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
- dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",
- __FUNCTION__, ret);
- if (ret < 0)
- return ret;
- msleep(150);
-
- for (i = 0; i < 3; i++) {
- ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0),
- MTOUCHUSB_ASYNC_REPORT,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
- dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
- __FUNCTION__, ret);
- if (ret >= 0)
- break;
- if (ret != -EPIPE)
- return ret;
- }
-
- return 0;
-}
-#endif
-
-
-/*****************************************************************************
- * ITM Part
- */
-#ifdef CONFIG_USB_TOUCHSCREEN_ITM
-static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- int touch;
- /*
- * ITM devices report invalid x/y data if not touched.
- * if the screen was touched before but is not touched any more
- * report touch as 0 with the last valid x/y data once. then stop
- * reporting data until touched again.
- */
- dev->press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
-
- touch = ~pkt[7] & 0x20;
- if (!touch) {
- if (dev->touch) {
- dev->touch = 0;
- return 1;
- }
-
- return 0;
- }
-
- dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
- dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
- dev->touch = touch;
-
- return 1;
-}
-#endif
-
-
-/*****************************************************************************
- * eTurboTouch part
- */
-#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
-static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- unsigned int shift;
-
- /* packets should start with sync */
- if (!(pkt[0] & 0x80))
- return 0;
-
- shift = (6 - (pkt[0] & 0x03));
- dev->x = ((pkt[3] << 7) | pkt[4]) >> shift;
- dev->y = ((pkt[1] << 7) | pkt[2]) >> shift;
- dev->touch = (pkt[0] & 0x10) ? 1 : 0;
-
- return 1;
-}
-
-static int eturbo_get_pkt_len(unsigned char *buf, int len)
-{
- if (buf[0] & 0x80)
- return 5;
- if (buf[0] == 0x01)
- return 3;
- return 0;
-}
-#endif
-
-
-/*****************************************************************************
- * Gunze part
- */
-#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
-static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
- return 0;
-
- dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
- dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
- dev->touch = pkt[0] & 0x20;
-
- return 1;
-}
-#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(struct usbtouch_usb *dev, unsigned char *pkt)
-{
- dev->x = ((pkt[2] & 0x03) << 8) | pkt[1];
- dev->y = ((pkt[4] & 0x03) << 8) | pkt[3];
- dev->touch = pkt[0] & 0x01;
-
- return 1;
-}
-#endif
-
-
-/*****************************************************************************
- * the different device descriptors
- */
-static struct usbtouch_device_info usbtouch_dev_info[] = {
-#ifdef CONFIG_USB_TOUCHSCREEN_EGALAX
- [DEVTYPE_EGALAX] = {
- .min_xc = 0x0,
- .max_xc = 0x07ff,
- .min_yc = 0x0,
- .max_yc = 0x07ff,
- .rept_size = 16,
- .flags = USBTOUCH_FLG_BUFFER,
- .process_pkt = usbtouch_process_multi,
- .get_pkt_len = egalax_get_pkt_len,
- .read_data = egalax_read_data,
- },
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_PANJIT
- [DEVTYPE_PANJIT] = {
- .min_xc = 0x0,
- .max_xc = 0x0fff,
- .min_yc = 0x0,
- .max_yc = 0x0fff,
- .rept_size = 8,
- .read_data = panjit_read_data,
- },
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_3M
- [DEVTYPE_3M] = {
- .min_xc = 0x0,
- .max_xc = 0x4000,
- .min_yc = 0x0,
- .max_yc = 0x4000,
- .rept_size = 11,
- .read_data = mtouch_read_data,
- .init = mtouch_init,
- },
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_ITM
- [DEVTYPE_ITM] = {
- .min_xc = 0x0,
- .max_xc = 0x0fff,
- .min_yc = 0x0,
- .max_yc = 0x0fff,
- .max_press = 0xff,
- .rept_size = 8,
- .read_data = itm_read_data,
- },
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO
- [DEVTYPE_ETURBO] = {
- .min_xc = 0x0,
- .max_xc = 0x07ff,
- .min_yc = 0x0,
- .max_yc = 0x07ff,
- .rept_size = 8,
- .flags = USBTOUCH_FLG_BUFFER,
- .process_pkt = usbtouch_process_multi,
- .get_pkt_len = eturbo_get_pkt_len,
- .read_data = eturbo_read_data,
- },
-#endif
-
-#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE
- [DEVTYPE_GUNZE] = {
- .min_xc = 0x0,
- .max_xc = 0x0fff,
- .min_yc = 0x0,
- .max_yc = 0x0fff,
- .rept_size = 4,
- .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
-};
-
-
-/*****************************************************************************
- * Generic Part
- */
-static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
- unsigned char *pkt, int len)
-{
- struct usbtouch_device_info *type = usbtouch->type;
-
- if (!type->read_data(usbtouch, pkt))
- return;
-
- input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch);
-
- if (swap_xy) {
- input_report_abs(usbtouch->input, ABS_X, usbtouch->y);
- input_report_abs(usbtouch->input, ABS_Y, usbtouch->x);
- } else {
- input_report_abs(usbtouch->input, ABS_X, usbtouch->x);
- input_report_abs(usbtouch->input, ABS_Y, usbtouch->y);
- }
- if (type->max_press)
- input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press);
- input_sync(usbtouch->input);
-}
-
-
-#ifdef MULTI_PACKET
-static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
- unsigned char *pkt, int len)
-{
- unsigned char *buffer;
- int pkt_len, pos, buf_len, tmp;
-
- /* process buffer */
- if (unlikely(usbtouch->buf_len)) {
- /* try to get size */
- pkt_len = usbtouch->type->get_pkt_len(
- usbtouch->buffer, usbtouch->buf_len);
-
- /* drop? */
- if (unlikely(!pkt_len))
- goto out_flush_buf;
-
- /* need to append -pkt_len bytes before able to get size */
- if (unlikely(pkt_len < 0)) {
- int append = -pkt_len;
- if (unlikely(append > len))
- append = len;
- if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
- goto out_flush_buf;
- memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
- usbtouch->buf_len += append;
-
- pkt_len = usbtouch->type->get_pkt_len(
- usbtouch->buffer, usbtouch->buf_len);
- if (pkt_len < 0)
- return;
- }
-
- /* append */
- tmp = pkt_len - usbtouch->buf_len;
- if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
- goto out_flush_buf;
- memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
- usbtouch_process_pkt(usbtouch, usbtouch->buffer, pkt_len);
-
- buffer = pkt + tmp;
- buf_len = len - tmp;
- } else {
- buffer = pkt;
- buf_len = len;
- }
-
- /* loop over the received packet, process */
- pos = 0;
- while (pos < buf_len) {
- /* get packet len */
- pkt_len = usbtouch->type->get_pkt_len(buffer + pos, len);
-
- /* unknown packet: drop everything */
- if (unlikely(!pkt_len))
- goto out_flush_buf;
-
- /* full packet: process */
- if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
- usbtouch_process_pkt(usbtouch, buffer + pos, pkt_len);
- } else {
- /* incomplete packet: save in buffer */
- memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
- usbtouch->buf_len = buf_len - pos;
- return;
- }
- pos += pkt_len;
- }
-
-out_flush_buf:
- usbtouch->buf_len = 0;
- return;
-}
-#endif
-
-
-static void usbtouch_irq(struct urb *urb)
-{
- struct usbtouch_usb *usbtouch = urb->context;
- int retval;
-
- switch (urb->status) {
- case 0:
- /* success */
- break;
- case -ETIME:
- /* this urb is timing out */
- dbg("%s - urb timed out - was the device unplugged?",
- __FUNCTION__);
- return;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __FUNCTION__, urb->status);
- return;
- default:
- dbg("%s - nonzero urb status received: %d",
- __FUNCTION__, urb->status);
- goto exit;
- }
-
- usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length);
-
-exit:
- retval = usb_submit_urb(urb, GFP_ATOMIC);
- if (retval)
- err("%s - usb_submit_urb failed with result: %d",
- __FUNCTION__, retval);
-}
-
-static int usbtouch_open(struct input_dev *input)
-{
- struct usbtouch_usb *usbtouch = input_get_drvdata(input);
-
- usbtouch->irq->dev = usbtouch->udev;
-
- if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))
- return -EIO;
-
- return 0;
-}
-
-static void usbtouch_close(struct input_dev *input)
-{
- struct usbtouch_usb *usbtouch = input_get_drvdata(input);
-
- usb_kill_urb(usbtouch->irq);
-}
-
-
-static void usbtouch_free_buffers(struct usb_device *udev,
- struct usbtouch_usb *usbtouch)
-{
- usb_buffer_free(udev, usbtouch->type->rept_size,
- usbtouch->data, usbtouch->data_dma);
- kfree(usbtouch->buffer);
-}
-
-
-static int usbtouch_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usbtouch_usb *usbtouch;
- struct input_dev *input_dev;
- struct usb_host_interface *interface;
- struct usb_endpoint_descriptor *endpoint;
- struct usb_device *udev = interface_to_usbdev(intf);
- struct usbtouch_device_info *type;
- int err = -ENOMEM;
-
- interface = intf->cur_altsetting;
- endpoint = &interface->endpoint[0].desc;
-
- usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!usbtouch || !input_dev)
- goto out_free;
-
- type = &usbtouch_dev_info[id->driver_info];
- usbtouch->type = type;
- if (!type->process_pkt)
- type->process_pkt = usbtouch_process_pkt;
-
- usbtouch->data = usb_buffer_alloc(udev, type->rept_size,
- GFP_KERNEL, &usbtouch->data_dma);
- if (!usbtouch->data)
- goto out_free;
-
- if (type->flags & USBTOUCH_FLG_BUFFER) {
- usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);
- if (!usbtouch->buffer)
- goto out_free_buffers;
- }
-
- usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
- if (!usbtouch->irq) {
- dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__);
- goto out_free_buffers;
- }
-
- usbtouch->udev = udev;
- usbtouch->input = input_dev;
-
- if (udev->manufacturer)
- strlcpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));
-
- if (udev->product) {
- if (udev->manufacturer)
- strlcat(usbtouch->name, " ", sizeof(usbtouch->name));
- strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));
- }
-
- if (!strlen(usbtouch->name))
- snprintf(usbtouch->name, sizeof(usbtouch->name),
- "USB Touchscreen %04x:%04x",
- le16_to_cpu(udev->descriptor.idVendor),
- le16_to_cpu(udev->descriptor.idProduct));
-
- usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
- strlcpy(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
-
- input_dev->name = usbtouch->name;
- input_dev->phys = usbtouch->phys;
- usb_to_input_id(udev, &input_dev->id);
- input_dev->dev.parent = &intf->dev;
-
- input_set_drvdata(input_dev, usbtouch);
-
- input_dev->open = usbtouch_open;
- input_dev->close = usbtouch_close;
-
- input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
- input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);
- if (type->max_press)
- input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
- type->max_press, 0, 0);
-
- usb_fill_int_urb(usbtouch->irq, usbtouch->udev,
- usb_rcvintpipe(usbtouch->udev, endpoint->bEndpointAddress),
- usbtouch->data, type->rept_size,
- usbtouch_irq, usbtouch, endpoint->bInterval);
-
- usbtouch->irq->dev = usbtouch->udev;
- usbtouch->irq->transfer_dma = usbtouch->data_dma;
- usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-
- /* device specific init */
- if (type->init) {
- err = type->init(usbtouch);
- if (err) {
- dbg("%s - type->init() failed, err: %d", __FUNCTION__, err);
- goto out_free_buffers;
- }
- }
-
- err = input_register_device(usbtouch->input);
- if (err) {
- dbg("%s - input_register_device failed, err: %d", __FUNCTION__, err);
- goto out_free_buffers;
- }
-
- usb_set_intfdata(intf, usbtouch);
-
- return 0;
-
-out_free_buffers:
- usbtouch_free_buffers(udev, usbtouch);
-out_free:
- input_free_device(input_dev);
- kfree(usbtouch);
- return err;
-}
-
-static void usbtouch_disconnect(struct usb_interface *intf)
-{
- struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
-
- dbg("%s - called", __FUNCTION__);
-
- if (!usbtouch)
- return;
-
- dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__);
- usb_set_intfdata(intf, NULL);
- usb_kill_urb(usbtouch->irq);
- input_unregister_device(usbtouch->input);
- usb_free_urb(usbtouch->irq);
- usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
- kfree(usbtouch);
-}
-
-MODULE_DEVICE_TABLE(usb, usbtouch_devices);
-
-static struct usb_driver usbtouch_driver = {
- .name = "usbtouchscreen",
- .probe = usbtouch_probe,
- .disconnect = usbtouch_disconnect,
- .id_table = usbtouch_devices,
-};
-
-static int __init usbtouch_init(void)
-{
- return usb_register(&usbtouch_driver);
-}
-
-static void __exit usbtouch_cleanup(void)
-{
- usb_deregister(&usbtouch_driver);
-}
-
-module_init(usbtouch_init);
-module_exit(usbtouch_cleanup);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-MODULE_ALIAS("touchkitusb");
-MODULE_ALIAS("itmtouch");
-MODULE_ALIAS("mtouchusb");
projects / openwrt / staging / blogic.git / commitdiff