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Release 4.11 drivers/input/touchscreen/usbtouchscreen.c

/******************************************************************************
 * 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
 *  - IRTOUCHSYSTEMS/UNITOP
 *  - IdealTEK URTC1000
 *  - General Touch
 *  - GoTop Super_Q2/GogoPen/PenPower tablets
 *  - JASTEC USB touch controller/DigiTech DTR-02U
 *  - Zytronic capacitive touchscreen
 *  - NEXIO/iNexio
 *  - Elo TouchSystems 2700 IntelliTouch
 *  - EasyTouch USB Dual/Multi touch controller from Data Modul
 *
 * Copyright (C) 2004-2007 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/usb.h>
#include <linux/usb/input.h>
#include <linux/hid.h>



#define DRIVER_VERSION		"v0.6"

#define DRIVER_AUTHOR		"Daniel Ritz <daniel.ritz@gmx.ch>"

#define DRIVER_DESC		"USB Touchscreen Driver"


static bool swap_xy;
module_param(swap_xy, bool, 0644);
MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");


static bool hwcalib_xy;
module_param(hwcalib_xy, bool, 0644);
MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available");

/* 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;

	/*
         * Always service the USB devices irq not just when the input device is
         * open. This is useful when devices have a watchdog which prevents us
         * from periodically polling the device. Leave this unset unless your
         * touchscreen device requires it, as it does consume more of the USB
         * bandwidth.
         */
	
bool irq_always;

	
void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);

	/*
         * used to get the packet len. possible return values:
         * > 0: packet len
         * = 0: skip one byte
         * < 0: -return value more bytes needed
         */
	
int  (*get_pkt_len) (unsigned char *pkt, int len);

	
int  (*read_data)   (struct usbtouch_usb *usbtouch, unsigned char *pkt);
	
int  (*alloc)       (struct usbtouch_usb *usbtouch);
	
int  (*init)        (struct usbtouch_usb *usbtouch);
	
void (*exit)	    (struct usbtouch_usb *usbtouch);
};

/* a usbtouch device */

struct usbtouch_usb {
	
unsigned char *data;
	
dma_addr_t data_dma;
	
int data_size;
	
unsigned char *buffer;
	
int buf_len;
	
struct urb *irq;
	
struct usb_interface *interface;
	
struct input_dev *input;
	
struct usbtouch_device_info *type;
	
char name[128];
	
char phys[64];
	
void *priv;

	

int x, y;
	

int touch, press;
};


/* device types */
enum {
	
DEVTYPE_IGNORE = -1,
	
DEVTYPE_EGALAX,
	
DEVTYPE_PANJIT,
	
DEVTYPE_3M,
	
DEVTYPE_ITM,
	
DEVTYPE_ETURBO,
	
DEVTYPE_GUNZE,
	
DEVTYPE_DMC_TSC10,
	
DEVTYPE_IRTOUCH,
	
DEVTYPE_IRTOUCH_HIRES,
	
DEVTYPE_IDEALTEK,
	
DEVTYPE_GENERAL_TOUCH,
	
DEVTYPE_GOTOP,
	
DEVTYPE_JASTEC,
	
DEVTYPE_E2I,
	
DEVTYPE_ZYTRONIC,
	
DEVTYPE_TC45USB,
	
DEVTYPE_NEXIO,
	
DEVTYPE_ELO,
	
DEVTYPE_ETOUCH,
};


#define USB_DEVICE_HID_CLASS(vend, prod) \
	.match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \
                | USB_DEVICE_ID_MATCH_DEVICE, \
        .idVendor = (vend), \
        .idProduct = (prod), \
        .bInterfaceClass = USB_INTERFACE_CLASS_HID


static const struct usb_device_id usbtouch_devices[] = {
#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
	/* ignore the HID capable devices, handled by usbhid */
	{USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
	{USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE},

	/* normal device IDs */
	{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_TOUCHSCREEN_USB_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_TOUCHSCREEN_USB_3M
	{USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_ITM
	{USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
	{USB_DEVICE(0x16e3, 0xf9e9), .driver_info = DEVTYPE_ITM},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
	{USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
	{USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
	{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},
	{USB_DEVICE(0x6615, 0x0012), .driver_info = DEVTYPE_IRTOUCH_HIRES},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
	{USB_DEVICE(0x1391, 0x1000), .driver_info = DEVTYPE_IDEALTEK},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
	{USB_DEVICE(0x0dfc, 0x0001), .driver_info = DEVTYPE_GENERAL_TOUCH},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
	{USB_DEVICE(0x08f2, 0x007f), .driver_info = DEVTYPE_GOTOP},
	{USB_DEVICE(0x08f2, 0x00ce), .driver_info = DEVTYPE_GOTOP},
	{USB_DEVICE(0x08f2, 0x00f4), .driver_info = DEVTYPE_GOTOP},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
	{USB_DEVICE(0x0f92, 0x0001), .driver_info = DEVTYPE_JASTEC},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_E2I
	{USB_DEVICE(0x1ac7, 0x0001), .driver_info = DEVTYPE_E2I},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
	{USB_DEVICE(0x14c8, 0x0003), .driver_info = DEVTYPE_ZYTRONIC},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
	/* TC5UH */
	{USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC45USB},
	/* TC4UM */
	{USB_DEVICE(0x0664, 0x0306), .driver_info = DEVTYPE_TC45USB},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
	/* data interface only */
	{USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
		.driver_info = DEVTYPE_NEXIO},
	{USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
		.driver_info = DEVTYPE_NEXIO},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_ELO
	{USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO},
#endif

#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
	{USB_DEVICE(0x7374, 0x0001), .driver_info = DEVTYPE_ETOUCH},
#endif

	{}
};


/*****************************************************************************
 * e2i Part
 */

#ifdef CONFIG_TOUCHSCREEN_USB_E2I

static int e2i_init(struct usbtouch_usb *usbtouch) { int ret; struct usb_device *udev = interface_to_usbdev(usbtouch->interface); ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x01, 0x02, 0x0000, 0x0081, NULL, 0, USB_CTRL_SET_TIMEOUT); dev_dbg(&usbtouch->interface->dev, "%s - usb_control_msg - E2I_RESET - bytes|err: %d\n", __func__, ret); return ret; }

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static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { int tmp = (pkt[0] << 8) | pkt[1]; dev->x = (pkt[2] << 8) | pkt[3]; dev->y = (pkt[4] << 8) | pkt[5]; tmp = tmp - 0xA000; dev->touch = (tmp > 0); dev->press = (tmp > 0 ? tmp : 0); return 1; }

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#endif /***************************************************************************** * eGalax part */ #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX #ifndef MULTI_PACKET #define MULTI_PACKET #endif #define EGALAX_PKT_TYPE_MASK 0xFE #define EGALAX_PKT_TYPE_REPT 0x80 #define EGALAX_PKT_TYPE_DIAG 0x0A
static int egalax_init(struct usbtouch_usb *usbtouch) { int ret, i; unsigned char *buf; struct usb_device *udev = interface_to_usbdev(usbtouch->interface); /* * An eGalax diagnostic packet kicks the device into using the right * protocol. We send a "check active" packet. The response will be * read later and ignored. */ buf = kmalloc(3, GFP_KERNEL); if (!buf) return -ENOMEM; buf[0] = EGALAX_PKT_TYPE_DIAG; buf[1] = 1; /* length */ buf[2] = 'A'; /* command - check active */ for (i = 0; i < 3; i++) { ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, 0, buf, 3, USB_CTRL_SET_TIMEOUT); if (ret >= 0) { ret = 0; break; } if (ret != -EPIPE) break; } kfree(buf); return ret; }

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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; }

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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; }

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#endif /***************************************************************************** * EasyTouch part */ #ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH #ifndef MULTI_PACKET #define MULTI_PACKET #endif #define ETOUCH_PKT_TYPE_MASK 0xFE #define ETOUCH_PKT_TYPE_REPT 0x80 #define ETOUCH_PKT_TYPE_REPT2 0xB0 #define ETOUCH_PKT_TYPE_DIAG 0x0A
static int etouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { if ((pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT && (pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT2) return 0; dev->x = ((pkt[1] & 0x1F) << 7) | (pkt[2] & 0x7F); dev->y = ((pkt[3] & 0x1F) << 7) | (pkt[4] & 0x7F); dev->touch = pkt[0] & 0x01; return 1; }

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static int etouch_get_pkt_len(unsigned char *buf, int len) { switch (buf[0] & ETOUCH_PKT_TYPE_MASK) { case ETOUCH_PKT_TYPE_REPT: case ETOUCH_PKT_TYPE_REPT2: return 5; case ETOUCH_PKT_TYPE_DIAG: if (len < 2) return -1; return buf[1] + 2; } return 0; }

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#endif /***************************************************************************** * PanJit Part */ #ifdef CONFIG_TOUCHSCREEN_USB_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; }

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#endif /***************************************************************************** * 3M/Microtouch Part */ #ifdef CONFIG_TOUCHSCREEN_USB_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) { if (hwcalib_xy) { dev->x = (pkt[4] << 8) | pkt[3]; dev->y = 0xffff - ((pkt[6] << 8) | pkt[5]); } else { dev->x = (pkt[8] << 8) | pkt[7]; dev->y = (pkt[10] << 8) | pkt[9]; } dev->touch = (pkt[2] & 0x40) ? 1 : 0; return 1; }

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static int mtouch_init(struct usbtouch_usb *usbtouch) { int ret, i; struct usb_device *udev = interface_to_usbdev(usbtouch->interface); ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), MTOUCHUSB_RESET, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); dev_dbg(&usbtouch->interface->dev, "%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d\n", __func__, ret); if (ret < 0) return ret; msleep(150); for (i = 0; i < 3; i++) { ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), MTOUCHUSB_ASYNC_REPORT, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT); dev_dbg(&usbtouch->interface->dev, "%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d\n", __func__, ret); if (ret >= 0) break; if (ret != -EPIPE) return ret; } /* Default min/max xy are the raw values, override if using hw-calib */ if (hwcalib_xy) { input_set_abs_params(usbtouch->input, ABS_X, 0, 0xffff, 0, 0); input_set_abs_params(usbtouch->input, ABS_Y, 0, 0xffff, 0, 0); } return 0; }

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Harvey Harrison20.93%114.29%
Total214100.00%7100.00%

#endif /***************************************************************************** * ITM Part */ #ifdef CONFIG_TOUCHSCREEN_USB_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; }

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#endif /***************************************************************************** * eTurboTouch part */ #ifdef CONFIG_TOUCHSCREEN_USB_ETURBO #ifndef MULTI_PACKET #define MULTI_PACKET #endif
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; }

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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; }

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#endif /***************************************************************************** * Gunze part */ #ifdef CONFIG_TOUCHSCREEN_USB_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; }

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#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_TOUCHSCREEN_USB_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 = interface_to_usbdev(usbtouch->interface); int ret = -ENOMEM; unsigned char *buf; buf = kmalloc(2, GFP_NOIO); if (!buf) goto err_nobuf; /* 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) goto err_out; if (buf[0] != 0x06) { ret = -ENODEV; goto err_out; } /* TSC-25 data sheet specifies a delay after the RESET command */ msleep(150); /* 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) goto err_out; if ((buf[0] != 0x06) && (buf[0] != 0x15 || buf[1] != 0x01)) { ret = -ENODEV; goto err_out; } /* 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); err_out: kfree(buf); err_nobuf: return ret; }

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Ondrej Zary41.50%116.67%
Total266100.00%6100.00%


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; }

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#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; }

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#endif /***************************************************************************** * ET&T TC5UH/TC4UM part */ #ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
static int tc45usb_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; }

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#endif /***************************************************************************** * IdealTEK URTC1000 Part */ #ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK #ifndef MULTI_PACKET #define MULTI_PACKET #endif
static int idealtek_get_pkt_len(unsigned char *buf, int len) { if (buf[0] & 0x80) return 5; if (buf[0] == 0x01) return len; return 0; }

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Ondrej Zary41100.00%1100.00%
Total41100.00%1100.00%


static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { switch (pkt[0] & 0x98) { case 0x88: /* touch data in IdealTEK mode */ dev->x = (pkt[1] << 5) | (pkt[2] >> 2); dev->y = (pkt[3] << 5) | (pkt[4] >> 2); dev->touch = (pkt[0] & 0x40) ? 1 : 0; return 1; case 0x98: /* touch data in MT emulation mode */ dev->x = (pkt[2] << 5) | (pkt[1] >> 2); dev->y = (pkt[4] << 5) | (pkt[3] >> 2); dev->touch = (pkt[0] & 0x40) ? 1 : 0; return 1; default: return 0; } }

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PersonTokensPropCommitsCommitProp
Ondrej Zary167100.00%1100.00%
Total167100.00%1100.00%

#endif /***************************************************************************** * General Touch Part */ #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { dev->x = (pkt[2] << 8) | pkt[1]; dev->y = (pkt[4] << 8) | pkt[3]; dev->press = pkt[5] & 0xff; dev->touch = pkt[0] & 0x01; return 1; }

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PersonTokensPropCommitsCommitProp
Ilya Frolov77100.00%1100.00%
Total77100.00%1100.00%

#endif /***************************************************************************** * GoTop Part */ #ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { dev->x = ((pkt[1] & 0x38) << 4) | pkt[2]; dev->y = ((pkt[1] & 0x07) << 7) | pkt[3]; dev->touch = pkt[0] & 0x01; return 1; }

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PersonTokensPropCommitsCommitProp
Jerrold Jones74100.00%1100.00%
Total74100.00%1100.00%

#endif /***************************************************************************** * JASTEC Part */ #ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { dev->x = ((pkt[0] & 0x3f) << 6) | (pkt[2] & 0x3f); dev->y = ((pkt[1] & 0x3f) << 6) | (pkt[3] & 0x3f); dev->touch = (pkt[0] & 0x40) >> 6; return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Jim Persson86100.00%1100.00%
Total86100.00%1100.00%

#endif /***************************************************************************** * Zytronic Part */ #ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt) { struct usb_interface *intf = dev->interface; switch (pkt[0]) { case 0x3A: /* command response */ dev_dbg(&intf->dev, "%s: Command response %d\n", __func__, pkt[1]); break; case 0xC0: /* down */ dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7); dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7); dev->touch = 1; dev_dbg(&intf->dev, "%s: down %d,%d\n", __func__, dev->x, dev->y); return 1; case 0x80: /* up */ dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7); dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7); dev->touch = 0; dev_dbg(&intf->dev, "%s: up %d,%d\n", __func__, dev->x, dev->y); return 1; default: dev_dbg(&intf->dev, "%s: Unknown return %d\n", __func__, pkt[0]); break; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Silverstone21185.08%133.33%
Greg Kroah-Hartman3714.92%266.67%
Total248100.00%3100.00%

#endif /***************************************************************************** * NEXIO Part */ #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO #define NEXIO_TIMEOUT 5000 #define NEXIO_BUFSIZE 1024 #define NEXIO_THRESHOLD 50 struct nexio_priv { struct urb *ack; unsigned char *ack_buf; }; struct nexio_touch_packet { u8 flags; /* 0xe1 = touch, 0xe1 = release */ __be16 data_len; /* total bytes of touch data */ __be16 x_len; /* bytes for X axis */ __be16 y_len; /* bytes for Y axis */ u8 data[]; } __attribute__ ((packed)); static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 }; static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
static void nexio_ack_complete(struct urb *urb) { }

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PersonTokensPropCommitsCommitProp
Ondrej Zary10100.00%1100.00%
Total10100.00%1100.00%


static int nexio_alloc(struct usbtouch_usb *usbtouch) { struct nexio_priv *priv; int ret = -ENOMEM; usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL); if (!usbtouch->priv) goto out_buf; priv = usbtouch->priv; priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt), GFP_KERNEL); if (!priv->ack_buf) goto err_priv; priv->ack = usb_alloc_urb(0, GFP_KERNEL); if (!priv->ack) { dev_dbg(&usbtouch->interface->dev, "%s - usb_alloc_urb failed: usbtouch->ack\n", __func__); goto err_ack_buf; } return 0; err_ack_buf: kfree(priv->ack_buf); err_priv: kfree(priv); out_buf: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum13193.57%133.33%
Greg Kroah-Hartman96.43%266.67%
Total140100.00%3100.00%


static int nexio_init(struct usbtouch_usb *usbtouch) { struct usb_device *dev = interface_to_usbdev(usbtouch->interface); struct usb_host_interface *interface = usbtouch->interface->cur_altsetting; struct nexio_priv *priv = usbtouch->priv; int ret = -ENOMEM; int actual_len, i; unsigned char *buf; char *firmware_ver = NULL, *device_name = NULL; int input_ep = 0, output_ep = 0; /* find first input and output endpoint */ for (i = 0; i < interface->desc.bNumEndpoints; i++) { if (!input_ep && usb_endpoint_dir_in(&interface->endpoint[i].desc)) input_ep = interface->endpoint[i].desc.bEndpointAddress; if (!output_ep && usb_endpoint_dir_out(&interface->endpoint[i].desc)) output_ep = interface->endpoint[i].desc.bEndpointAddress; } if (!input_ep || !output_ep) return -ENXIO; buf = kmalloc(NEXIO_BUFSIZE, GFP_NOIO); if (!buf) goto out_buf; /* two empty reads */ for (i = 0; i < 2; i++) { ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep), buf, NEXIO_BUFSIZE, &actual_len, NEXIO_TIMEOUT); if (ret < 0) goto out_buf; } /* send init command */ memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt)); ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep), buf, sizeof(nexio_init_pkt), &actual_len, NEXIO_TIMEOUT); if (ret < 0) goto out_buf; /* read replies */ for (i = 0; i < 3; i++) { memset(buf, 0, NEXIO_BUFSIZE); ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep), buf, NEXIO_BUFSIZE, &actual_len, NEXIO_TIMEOUT); if (ret < 0 || actual_len < 1 || buf[1] != actual_len) continue; switch (buf[0]) { case 0x83: /* firmware version */ if (!firmware_ver) firmware_ver = kstrdup(&buf[2], GFP_NOIO); break; case 0x84: /* device name */ if (!device_name) device_name = kstrdup(&buf[2], GFP_NOIO); break; } } printk(KERN_INFO "Nexio device: %s, firmware version: %s\n", device_name, firmware_ver); kfree(firmware_ver); kfree(device_name); usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep), priv->ack_buf, sizeof(nexio_ack_pkt), nexio_ack_complete, usbtouch); ret = 0; out_buf: kfree(buf); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ondrej Zary46298.30%133.33%
Oliver Neukum71.49%133.33%
Daniel Ritz10.21%133.33%
Total470100.00%3100.00%


static void nexio_exit(struct usbtouch_usb *usbtouch) { struct nexio_priv *priv = usbtouch->priv; usb_kill_urb(priv->ack); usb_free_urb(priv->ack); kfree(priv->ack_buf); kfree(priv); }

Contributors

PersonTokensPropCommitsCommitProp
Ondrej Zary46100.00%1100.00%
Total46100.00%1100.00%


static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) { struct nexio_touch_packet *packet = (void *) pkt; struct nexio_priv *priv = usbtouch->priv; unsigned int data_len = be16_to_cpu(packet->data_len); unsigned int x_len = be16_to_cpu(packet->x_len); unsigned int y_len = be16_to_cpu(packet->y_len); int x, y, begin_x, begin_y, end_x, end_y, w, h, ret; /* got touch data? */ if ((pkt[0] & 0xe0) != 0xe0) return 0; if (data_len > 0xff) data_len -= 0x100; if (x_len > 0xff) x_len -= 0x80; /* send ACK */ ret = usb_submit_urb(priv->ack, GFP_ATOMIC); if (!usbtouch->type->max_xc) { usbtouch->type->max_xc = 2 * x_len; input_set_abs_params(usbtouch->input, ABS_X, 0, usbtouch->type->max_xc, 0, 0); usbtouch->type->max_yc = 2 * y_len; input_set_abs_params(usbtouch->input, ABS_Y, 0, usbtouch->type->max_yc, 0, 0); } /* * The device reports state of IR sensors on X and Y axes. * Each byte represents "darkness" percentage (0-100) of one element. * 17" touchscreen reports only 64 x 52 bytes so the resolution is low. * This also means that there's a limited multi-touch capability but * it's disabled (and untested) here as there's no X driver for that. */ begin_x = end_x = begin_y = end_y = -1; for (x = 0; x < x_len; x++) { if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) { begin_x = x; continue; } if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) { end_x = x - 1; for (y = x_len; y < data_len; y++) { if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) { begin_y = y - x_len; continue; } if (end_y == -1 && begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) { end_y = y - 1 - x_len; w = end_x - begin_x; h = end_y - begin_y; #if 0 /* multi-touch */ input_report_abs(usbtouch->input, ABS_MT_TOUCH_MAJOR, max(w,h)); input_report_abs(usbtouch->input, ABS_MT_TOUCH_MINOR, min(x,h)); input_report_abs(usbtouch->input, ABS_MT_POSITION_X, 2*begin_x+w); input_report_abs(usbtouch->input, ABS_MT_POSITION_Y, 2*begin_y+h); input_report_abs(usbtouch->input, ABS_MT_ORIENTATION, w > h); input_mt_sync(usbtouch->input); #endif /* single touch */ usbtouch->x = 2 * begin_x + w; usbtouch->y = 2 * begin_y + h; usbtouch->touch = packet->flags & 0x01; begin_y = end_y = -1; return 1; } } begin_x = end_x = -1; } } return 0; }

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PersonTokensPropCommitsCommitProp
Ondrej Zary36885.58%266.67%
Dmitry Torokhov6214.42%133.33%
Total430100.00%3100.00%

#endif /***************************************************************************** * ELO part */ #ifdef CONFIG_TOUCHSCREEN_USB_ELO
static int elo_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[6] > 0; dev->press = pkt[6]; return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Gebetsroither75100.00%1100.00%
Total75100.00%1100.00%

#endif /***************************************************************************** * the different device descriptors */ #ifdef MULTI_PACKET static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len); #endif static struct usbtouch_device_info usbtouch_dev_info[] = { #ifdef CONFIG_TOUCHSCREEN_USB_ELO [DEVTYPE_ELO] = { .min_xc = 0x0, .max_xc = 0x0fff, .min_yc = 0x0, .max_yc = 0x0fff, .max_press = 0xff, .rept_size = 8, .read_data = elo_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX [DEVTYPE_EGALAX] = { .min_xc = 0x0, .max_xc = 0x07ff, .min_yc = 0x0, .max_yc = 0x07ff, .rept_size = 16, .process_pkt = usbtouch_process_multi, .get_pkt_len = egalax_get_pkt_len, .read_data = egalax_read_data, .init = egalax_init, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_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_TOUCHSCREEN_USB_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_TOUCHSCREEN_USB_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_TOUCHSCREEN_USB_ETURBO [DEVTYPE_ETURBO] = { .min_xc = 0x0, .max_xc = 0x07ff, .min_yc = 0x0, .max_yc = 0x07ff, .rept_size = 8, .process_pkt = usbtouch_process_multi, .get_pkt_len = eturbo_get_pkt_len, .read_data = eturbo_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_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_TOUCHSCREEN_USB_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 #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, }, [DEVTYPE_IRTOUCH_HIRES] = { .min_xc = 0x0, .max_xc = 0x7fff, .min_yc = 0x0, .max_yc = 0x7fff, .rept_size = 8, .read_data = irtouch_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK [DEVTYPE_IDEALTEK] = { .min_xc = 0x0, .max_xc = 0x0fff, .min_yc = 0x0, .max_yc = 0x0fff, .rept_size = 8, .process_pkt = usbtouch_process_multi, .get_pkt_len = idealtek_get_pkt_len, .read_data = idealtek_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH [DEVTYPE_GENERAL_TOUCH] = { .min_xc = 0x0, .max_xc = 0x7fff, .min_yc = 0x0, .max_yc = 0x7fff, .rept_size = 7, .read_data = general_touch_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_GOTOP [DEVTYPE_GOTOP] = { .min_xc = 0x0, .max_xc = 0x03ff, .min_yc = 0x0, .max_yc = 0x03ff, .rept_size = 4, .read_data = gotop_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_JASTEC [DEVTYPE_JASTEC] = { .min_xc = 0x0, .max_xc = 0x0fff, .min_yc = 0x0, .max_yc = 0x0fff, .rept_size = 4, .read_data = jastec_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_E2I [DEVTYPE_E2I] = { .min_xc = 0x0, .max_xc = 0x7fff, .min_yc = 0x0, .max_yc = 0x7fff, .rept_size = 6, .init = e2i_init, .read_data = e2i_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC [DEVTYPE_ZYTRONIC] = { .min_xc = 0x0, .max_xc = 0x03ff, .min_yc = 0x0, .max_yc = 0x03ff, .rept_size = 5, .read_data = zytronic_read_data, .irq_always = true, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB [DEVTYPE_TC45USB] = { .min_xc = 0x0, .max_xc = 0x0fff, .min_yc = 0x0, .max_yc = 0x0fff, .rept_size = 5, .read_data = tc45usb_read_data, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO [DEVTYPE_NEXIO] = { .rept_size = 1024, .irq_always = true, .read_data = nexio_read_data, .alloc = nexio_alloc, .init = nexio_init, .exit = nexio_exit, }, #endif #ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH [DEVTYPE_ETOUCH] = { .min_xc = 0x0, .max_xc = 0x07ff, .min_yc = 0x0, .max_yc = 0x07ff, .rept_size = 16, .process_pkt = usbtouch_process_multi, .get_pkt_len = etouch_get_pkt_len, .read_data = etouch_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); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz141100.00%3100.00%
Total141100.00%3100.00%

#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, buf_len - pos); /* unknown packet: skip one byte */ if (unlikely(!pkt_len)) { pos++; continue; } /* 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; }

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PersonTokensPropCommitsCommitProp
Daniel Ritz363100.00%3100.00%
Total363100.00%3100.00%

#endif
static void usbtouch_irq(struct urb *urb) { struct usbtouch_usb *usbtouch = urb->context; struct device *dev = &usbtouch->interface->dev; int retval; switch (urb->status) { case 0: /* success */ break; case -ETIME: /* this urb is timing out */ dev_dbg(dev, "%s - urb timed out - was the device unplugged?\n", __func__); return; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: case -EPIPE: /* this urb is terminated, clean up */ dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, urb->status); return; default: dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, urb->status); goto exit; } usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length); exit: usb_mark_last_busy(interface_to_usbdev(usbtouch->interface)); retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) dev_err(dev, "%s - usb_submit_urb failed with result: %d\n", __func__, retval); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz11771.34%112.50%
Greg Kroah-Hartman2817.07%337.50%
Oliver Neukum106.10%112.50%
Ondrej Zary42.44%112.50%
Harvey Harrison42.44%112.50%
Pete Zaitcev10.61%112.50%
Total164100.00%8100.00%


static int usbtouch_open(struct input_dev *input) { struct usbtouch_usb *usbtouch = input_get_drvdata(input); int r; usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface); r = usb_autopm_get_interface(usbtouch->interface) ? -EIO : 0; if (r < 0) goto out; if (!usbtouch->type->irq_always) { if (usb_submit_urb(usbtouch->irq, GFP_KERNEL)) { r = -EIO; goto out_put; } } usbtouch->interface->needs_remote_wakeup = 1; out_put: usb_autopm_put_interface(usbtouch->interface); out: return r; }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum5447.37%120.00%
Daniel Ritz4236.84%120.00%
Daniel Silverstone119.65%120.00%
Ondrej Zary43.51%120.00%
Dmitry Torokhov32.63%120.00%
Total114100.00%5100.00%


static void usbtouch_close(struct input_dev *input) { struct usbtouch_usb *usbtouch = input_get_drvdata(input); int r; if (!usbtouch->type->irq_always) usb_kill_urb(usbtouch->irq); r = usb_autopm_get_interface(usbtouch->interface); usbtouch->interface->needs_remote_wakeup = 0; if (!r) usb_autopm_put_interface(usbtouch->interface); }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum3246.38%125.00%
Daniel Ritz2536.23%125.00%
Daniel Silverstone913.04%125.00%
Dmitry Torokhov34.35%125.00%
Total69100.00%4100.00%


static int usbtouch_suspend (struct usb_interface *intf, pm_message_t message) { struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); usb_kill_urb(usbtouch->irq); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum34100.00%1100.00%
Total34100.00%1100.00%


static int usbtouch_resume(struct usb_interface *intf) { struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); struct input_dev *input = usbtouch->input; int result = 0; mutex_lock(&input->mutex); if (input->users || usbtouch->type->irq_always) result = usb_submit_urb(usbtouch->irq, GFP_NOIO); mutex_unlock(&input->mutex); return result; }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum77100.00%1100.00%
Total77100.00%1100.00%


static int usbtouch_reset_resume(struct usb_interface *intf) { struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); struct input_dev *input = usbtouch->input; int err = 0; /* reinit the device */ if (usbtouch->type->init) { err = usbtouch->type->init(usbtouch); if (err) { dev_dbg(&intf->dev, "%s - type->init() failed, err: %d\n", __func__, err); return err; } } /* restart IO if needed */ mutex_lock(&input->mutex); if (input->users) err = usb_submit_urb(usbtouch->irq, GFP_NOIO); mutex_unlock(&input->mutex); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Oliver Neukum11094.02%133.33%
Greg Kroah-Hartman75.98%266.67%
Total117100.00%3100.00%


static void usbtouch_free_buffers(struct usb_device *udev, struct usbtouch_usb *usbtouch) { usb_free_coherent(udev, usbtouch->data_size, usbtouch->data, usbtouch->data_dma); kfree(usbtouch->buffer); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz3895.00%133.33%
Daniel Mack12.50%133.33%
Christian Engelmayer12.50%133.33%
Total40100.00%3100.00%


static struct usb_endpoint_descriptor * usbtouch_get_input_endpoint(struct usb_host_interface *interface) { int i; for (i = 0; i < interface->desc.bNumEndpoints; i++) if (usb_endpoint_dir_in(&interface->endpoint[i].desc)) return &interface->endpoint[i].desc; return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Ondrej Zary62100.00%1100.00%
Total62100.00%1100.00%


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_endpoint_descriptor *endpoint; struct usb_device *udev = interface_to_usbdev(intf); struct usbtouch_device_info *type; int err = -ENOMEM; /* some devices are ignored */ if (id->driver_info == DEVTYPE_IGNORE) return -ENODEV; endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting); if (!endpoint) return -ENXIO; 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_size = type->rept_size; if (type->get_pkt_len) { /* * When dealing with variable-length packets we should * not request more than wMaxPacketSize bytes at once * as we do not know if there is more data coming or * we filled exactly wMaxPacketSize bytes and there is * nothing else. */ usbtouch->data_size = min(usbtouch->data_size, usb_endpoint_maxp(endpoint)); } usbtouch->data = usb_alloc_coherent(udev, usbtouch->data_size, GFP_KERNEL, &usbtouch->data_dma); if (!usbtouch->data) goto out_free; if (type->get_pkt_len) { 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) { dev_dbg(&intf->dev, "%s - usb_alloc_urb failed: usbtouch->irq\n", __func__); goto out_free_buffers; } usbtouch->interface = intf; 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)); strlcat(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_MASK(EV_KEY) | BIT_MASK(EV_ABS); input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(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); if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT) usb_fill_int_urb(usbtouch->irq, udev, usb_rcvintpipe(udev, endpoint->bEndpointAddress), usbtouch->data, usbtouch->data_size, usbtouch_irq, usbtouch, endpoint->bInterval); else usb_fill_bulk_urb(usbtouch->irq, udev, usb_rcvbulkpipe(udev, endpoint->bEndpointAddress), usbtouch->data, usbtouch->data_size, usbtouch_irq, usbtouch); usbtouch->irq->dev = udev; usbtouch->irq->transfer_dma = usbtouch->data_dma; usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* device specific allocations */ if (type->alloc) { err = type->alloc(usbtouch); if (err) { dev_dbg(&intf->dev, "%s - type->alloc() failed, err: %d\n", __func__, err); goto out_free_urb; } } /* device specific initialisation*/ if (type->init) { err = type->init(usbtouch); if (err) { dev_dbg(&intf->dev, "%s - type->init() failed, err: %d\n", __func__, err); goto out_do_exit; } } err = input_register_device(usbtouch->input); if (err) { dev_dbg(&intf->dev, "%s - input_register_device failed, err: %d\n", __func__, err); goto out_do_exit; } usb_set_intfdata(intf, usbtouch); if (usbtouch->type->irq_always) { /* this can't fail */ usb_autopm_get_interface(intf); err = usb_submit_urb(usbtouch->irq, GFP_KERNEL); if (err) { usb_autopm_put_interface(intf); dev_err(&intf->dev, "%s - usb_submit_urb failed with result: %d\n", __func__, err); goto out_unregister_input; } } return 0; out_unregister_input: input_unregister_device(input_dev); input_dev = NULL; out_do_exit: if (type->exit) type->exit(usbtouch); out_free_urb: usb_free_urb(usbtouch->irq); out_free_buffers: usbtouch_free_buffers(udev, usbtouch); out_free: input_free_device(input_dev); kfree(usbtouch); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz65871.52%521.74%
Ondrej Zary10811.74%417.39%
Oliver Neukum475.11%28.70%
Christian Engelmayer394.24%14.35%
Greg Kroah-Hartman353.80%313.04%
Daniel Silverstone171.85%14.35%
Dmitry Torokhov60.65%28.70%
Jiri Slaby40.43%14.35%
Harvey Harrison30.33%14.35%
Christoph Lameter10.11%14.35%
Vladimir Shebordaev10.11%14.35%
Daniel Mack10.11%14.35%
Total920100.00%23100.00%


static void usbtouch_disconnect(struct usb_interface *intf) { struct usbtouch_usb *usbtouch = usb_get_intfdata(intf); if (!usbtouch) return; dev_dbg(&intf->dev, "%s - usbtouch is initialized, cleaning up\n", __func__); usb_set_intfdata(intf, NULL); /* this will stop IO via close */ input_unregister_device(usbtouch->input); usb_free_urb(usbtouch->irq); if (usbtouch->type->exit) usbtouch->type->exit(usbtouch); usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch); kfree(usbtouch); }

Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz6772.04%116.67%
Ondrej Zary1718.28%116.67%
Greg Kroah-Hartman77.53%233.33%
Harvey Harrison11.08%116.67%
Oliver Neukum11.08%116.67%
Total93100.00%6100.00%

MODULE_DEVICE_TABLE(usb, usbtouch_devices); static struct usb_driver usbtouch_driver = { .name = "usbtouchscreen", .probe = usbtouch_probe, .disconnect = usbtouch_disconnect, .suspend = usbtouch_suspend, .resume = usbtouch_resume, .reset_resume = usbtouch_reset_resume, .id_table = usbtouch_devices, .supports_autosuspend = 1, }; module_usb_driver(usbtouch_driver); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_ALIAS("touchkitusb"); MODULE_ALIAS("itmtouch"); MODULE_ALIAS("mtouchusb");

Overall Contributors

PersonTokensPropCommitsCommitProp
Daniel Ritz320038.78%712.96%
Ondrej Zary187122.68%814.81%
Oliver Neukum5927.17%59.26%
Holger Schurig3614.38%11.85%
Daniel Silverstone3253.94%11.85%
Armando Visconti2703.27%11.85%
Florian Echtler2272.75%11.85%
Jerrold Jones1712.07%11.85%
Petr Štetiar1581.91%23.70%
Forest Bond1571.90%23.70%
Jim Persson1541.87%11.85%
Greg Kroah-Hartman1521.84%47.41%
Michael Gebetsroither1481.79%11.85%
Ilya Frolov1421.72%11.85%
Dan Streetman1091.32%11.85%
Dmitry Torokhov740.90%35.56%
Lars Poeschel520.63%11.85%
Christian Engelmayer430.52%11.85%
Glenn Sommer140.17%11.85%
Harvey Harrison100.12%11.85%
Bernhard Bender60.07%11.85%
Jiri Slaby40.05%11.85%
Daniel Mack20.02%11.85%
Roy Yin20.02%11.85%
Rusty Russell20.02%11.85%
Márton Németh10.01%11.85%
Christoph Lameter10.01%11.85%
Pete Zaitcev10.01%11.85%
Vladimir Shebordaev10.01%11.85%
David Brownell10.01%11.85%
Total8251100.00%54100.00%
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