diff options
Diffstat (limited to 'drivers/usb/input/usbtouchscreen.c')
| -rw-r--r-- | drivers/usb/input/usbtouchscreen.c | 839 |
1 files changed, 0 insertions, 839 deletions
diff --git a/drivers/usb/input/usbtouchscreen.c b/drivers/usb/input/usbtouchscreen.c deleted file mode 100644 index 8e18e6c6477..00000000000 --- a/drivers/usb/input/usbtouchscreen.c +++ /dev/null @@ -1,839 +0,0 @@ -/****************************************************************************** - * 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"); |