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[linux-2.6-block.git] / drivers / input / touchscreen / usbtouchscreen.c
CommitLineData
1d3e2023
DR		 1/******************************************************************************
2 * usbtouchscreen.c
3 * Driver for USB Touchscreens, supporting those devices:
4 * - eGalax Touchkit
5d892665
DR		 5 * includes eTurboTouch CT-410/510/700
6 * - 3M/Microtouch EX II series
1d3e2023
DR		 7 * - ITM
8 * - PanJit TouchSet
5d892665
DR		 9 * - eTurboTouch
10 * - Gunze AHL61
24ced062 11 * - DMC TSC-10/25
df561fcd 12 * - IRTOUCHSYSTEMS/UNITOP
a14a8401 13 * - IdealTEK URTC1000
62aa366d 14 * - General Touch
14e40206 15 * - GoTop Super_Q2/GogoPen/PenPower tablets
f7370699 16 * - JASTEC USB touch controller/DigiTech DTR-02U
2330ed18 17 * - Zytronic capacitive touchscreen
5197424c 18 * - NEXIO/iNexio
d2cc817a 19 * - Elo TouchSystems 2700 IntelliTouch
aa87512f 20 * - EasyTouch USB Dual/Multi touch controller from Data Modul
1d3e2023 21 *
14e40206 22 * Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
1d3e2023
DR		 23 * Copyright (C) by Todd E. Johnson (mtouchusb.c)
24 *
25 * This program is free software; you can redistribute it and/or
26 * modify it under the terms of the GNU General Public License as
27 * published by the Free Software Foundation; either version 2 of the
28 * License, or (at your option) any later version.
29 *
30 * This program is distributed in the hope that it will be useful, but
31 * WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
33 * General Public License for more details.
34 *
35 * You should have received a copy of the GNU General Public License
36 * along with this program; if not, write to the Free Software
37 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 *
39 * Driver is based on touchkitusb.c
40 * - ITM parts are from itmtouch.c
41 * - 3M parts are from mtouchusb.c
42 * - PanJit parts are from an unmerged driver by Lanslott Gish
24ced062
HS		 43 * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged
44 * driver from Marius Vollmer
1d3e2023
DR		 45 *
46 *****************************************************************************/
47
48//#define DEBUG
49
1d3e2023
DR		 50#include <linux/kernel.h>
51#include <linux/slab.h>
52#include <linux/input.h>
53#include <linux/module.h>
1d3e2023 54#include <linux/usb.h>
ae0dadcf 55#include <linux/usb/input.h>
ec42d448 56#include <linux/hid.h>
1d3e2023 57
90ab5ee9 58static bool swap_xy;
1d3e2023
DR		 59module_param(swap_xy, bool, 0644);
60MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
61
90ab5ee9 62static bool hwcalib_xy;
c9cbf3d3
DS		 63module_param(hwcalib_xy, bool, 0644);
64MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available");
65
1d3e2023
DR		 66/* device specifc data/functions */
67struct usbtouch_usb;
68struct usbtouch_device_info {
69 int min_xc, max_xc;
70 int min_yc, max_yc;
71 int min_press, max_press;
72 int rept_size;
1d3e2023 73
2330ed18
DS		 74 /*
75 * Always service the USB devices irq not just when the input device is
76 * open. This is useful when devices have a watchdog which prevents us
77 * from periodically polling the device. Leave this unset unless your
78 * touchscreen device requires it, as it does consume more of the USB
79 * bandwidth.
80 */
81 bool irq_always;
82
7d12e780 83 void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);
62aa366d
DR		 84
85 /*
86 * used to get the packet len. possible return values:
87 * > 0: packet len
88 * = 0: skip one byte
89 * < 0: -return value more bytes needed
90 */
5d892665 91 int (*get_pkt_len) (unsigned char *pkt, int len);
62aa366d 92
c9d8c2b3 93 int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
a8aef622 94 int (*alloc) (struct usbtouch_usb *usbtouch);
1d3e2023 95 int (*init) (struct usbtouch_usb *usbtouch);
5197424c 96 void (*exit) (struct usbtouch_usb *usbtouch);
1d3e2023
DR		 97};
98
1d3e2023
DR		 99/* a usbtouch device */
100struct usbtouch_usb {
101 unsigned char *data;
102 dma_addr_t data_dma;
4ef38351 103 int data_size;
1d3e2023
DR		 104 unsigned char *buffer;
105 int buf_len;
106 struct urb *irq;
fea4d14b 107 struct usb_interface *interface;
1d3e2023
DR		 108 struct input_dev *input;
109 struct usbtouch_device_info *type;
110 char name[128];
111 char phys[64];
5197424c 112 void *priv;
c9d8c2b3
DR		 113
114 int x, y;
115 int touch, press;
1d3e2023
DR		 116};
117
5d892665 118
1d3e2023
DR		 119/* device types */
120enum {
ec42d448 121 DEVTYPE_IGNORE = -1,
1d3e2023
DR		 122 DEVTYPE_EGALAX,
123 DEVTYPE_PANJIT,
124 DEVTYPE_3M,
125 DEVTYPE_ITM,
5d892665
DR		 126 DEVTYPE_ETURBO,
127 DEVTYPE_GUNZE,
24ced062 128 DEVTYPE_DMC_TSC10,
df561fcd 129 DEVTYPE_IRTOUCH,
dbea4032 130 DEVTYPE_IRTOUCH_HIRES,
a14a8401 131 DEVTYPE_IDEALTEK,
9d5657db 132 DEVTYPE_GENERAL_TOUCH,
14e40206 133 DEVTYPE_GOTOP,
f7370699 134 DEVTYPE_JASTEC,
9e3b2583 135 DEVTYPE_E2I,
2330ed18 136 DEVTYPE_ZYTRONIC,
38771bb4 137 DEVTYPE_TC45USB,
5197424c 138 DEVTYPE_NEXIO,
d2cc817a 139 DEVTYPE_ELO,
aa87512f 140 DEVTYPE_ETOUCH,
1d3e2023
DR		 141};
142
ec42d448
DR		 143#define USB_DEVICE_HID_CLASS(vend, prod) \
144 .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \
145 | USB_DEVICE_ID_MATCH_DEVICE, \
146 .idVendor = (vend), \
147 .idProduct = (prod), \
ae2aa3a5 148 .bInterfaceClass = USB_INTERFACE_CLASS_HID
ec42d448 149
9cb3ce52 150static const struct usb_device_id usbtouch_devices[] = {
c6f8d706 151#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
ec42d448
DR		 152 /* ignore the HID capable devices, handled by usbhid */
153 {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
154 {USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE},
155
156 /* normal device IDs */
1d3e2023 157 {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
5d892665 158 {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
1d3e2023
DR		 159 {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
160 {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},
161 {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},
5d892665
DR		 162 {USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX},
163 {USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX},
1d3e2023
DR		 164#endif
165
c6f8d706 166#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
1d3e2023
DR		 167 {USB_DEVICE(0x134c, 0x0001), .driver_info = DEVTYPE_PANJIT},
168 {USB_DEVICE(0x134c, 0x0002), .driver_info = DEVTYPE_PANJIT},
169 {USB_DEVICE(0x134c, 0x0003), .driver_info = DEVTYPE_PANJIT},
170 {USB_DEVICE(0x134c, 0x0004), .driver_info = DEVTYPE_PANJIT},
171#endif
172
c6f8d706 173#ifdef CONFIG_TOUCHSCREEN_USB_3M
1d3e2023
DR		 174 {USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},
175#endif
176
c6f8d706 177#ifdef CONFIG_TOUCHSCREEN_USB_ITM
1d3e2023 178 {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
09910509 179 {USB_DEVICE(0x16e3, 0xf9e9), .driver_info = DEVTYPE_ITM},
1d3e2023
DR		 180#endif
181
c6f8d706 182#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
5d892665
DR		 183 {USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
184#endif
185
c6f8d706 186#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
5d892665
DR		 187 {USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE},
188#endif
189
c6f8d706 190#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
24ced062
HS		 191 {USB_DEVICE(0x0afa, 0x03e8), .driver_info = DEVTYPE_DMC_TSC10},
192#endif
193
df561fcd
OZ		 194#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
195 {USB_DEVICE(0x595a, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
196 {USB_DEVICE(0x6615, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
dbea4032 197 {USB_DEVICE(0x6615, 0x0012), .driver_info = DEVTYPE_IRTOUCH_HIRES},
df561fcd
OZ		 198#endif
199
a14a8401
OZ		 200#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
201 {USB_DEVICE(0x1391, 0x1000), .driver_info = DEVTYPE_IDEALTEK},
202#endif
203
9d5657db
IF		 204#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
205 {USB_DEVICE(0x0dfc, 0x0001), .driver_info = DEVTYPE_GENERAL_TOUCH},
206#endif
207
14e40206
JJ		 208#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
209 {USB_DEVICE(0x08f2, 0x007f), .driver_info = DEVTYPE_GOTOP},
210 {USB_DEVICE(0x08f2, 0x00ce), .driver_info = DEVTYPE_GOTOP},
211 {USB_DEVICE(0x08f2, 0x00f4), .driver_info = DEVTYPE_GOTOP},
212#endif
213
f7370699
JP		 214#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
215 {USB_DEVICE(0x0f92, 0x0001), .driver_info = DEVTYPE_JASTEC},
216#endif
217
9e3b2583
FE		 218#ifdef CONFIG_TOUCHSCREEN_USB_E2I
219 {USB_DEVICE(0x1ac7, 0x0001), .driver_info = DEVTYPE_E2I},
220#endif
2330ed18
DS		 221
222#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
223 {USB_DEVICE(0x14c8, 0x0003), .driver_info = DEVTYPE_ZYTRONIC},
224#endif
225
38771bb4
PŠ		 226#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
227 /* TC5UH */
228 {USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC45USB},
229 /* TC4UM */
230 {USB_DEVICE(0x0664, 0x0306), .driver_info = DEVTYPE_TC45USB},
dbe1420b
PŠ		 231#endif
232
5197424c
OZ		 233#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
234 /* data interface only */
235 {USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
236 .driver_info = DEVTYPE_NEXIO},
237 {USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
238 .driver_info = DEVTYPE_NEXIO},
239#endif
240
d2cc817a
MG		 241#ifdef CONFIG_TOUCHSCREEN_USB_ELO
242 {USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO},
243#endif
244
aa87512f
AV		 245#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
246 {USB_DEVICE(0x7374, 0x0001), .driver_info = DEVTYPE_ETOUCH},
247#endif
248
1d3e2023
DR		 249 {}
250};
251
252
9e3b2583
FE		 253/*****************************************************************************
254 * e2i Part
255 */
256
257#ifdef CONFIG_TOUCHSCREEN_USB_E2I
258static int e2i_init(struct usbtouch_usb *usbtouch)
259{
260 int ret;
fea4d14b 261 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
9e3b2583 262
fea4d14b 263 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
9e3b2583
FE		 264 0x01, 0x02, 0x0000, 0x0081,
265 NULL, 0, USB_CTRL_SET_TIMEOUT);
266
0a5ebc88 267 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 268 "%s - usb_control_msg - E2I_RESET - bytes|err: %d\n",
269 __func__, ret);
9e3b2583
FE		 270 return ret;
271}
272
273static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
274{
275 int tmp = (pkt[0] << 8) | pkt[1];
276 dev->x = (pkt[2] << 8) | pkt[3];
277 dev->y = (pkt[4] << 8) | pkt[5];
278
279 tmp = tmp - 0xA000;
280 dev->touch = (tmp > 0);
281 dev->press = (tmp > 0 ? tmp : 0);
282
283 return 1;
284}
285#endif
286
287
1d3e2023
DR		 288/*****************************************************************************
289 * eGalax part
290 */
291
c6f8d706 292#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
1d3e2023 293
62aa366d
DR		 294#ifndef MULTI_PACKET
295#define MULTI_PACKET
296#endif
297
1d3e2023
DR		 298#define EGALAX_PKT_TYPE_MASK 0xFE
299#define EGALAX_PKT_TYPE_REPT 0x80
300#define EGALAX_PKT_TYPE_DIAG 0x0A
301
037a833e
FB		 302static int egalax_init(struct usbtouch_usb *usbtouch)
303{
304 int ret, i;
305 unsigned char *buf;
306 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
307
308 /*
309 * An eGalax diagnostic packet kicks the device into using the right
310 * protocol. We send a "check active" packet. The response will be
311 * read later and ignored.
312 */
313
314 buf = kmalloc(3, GFP_KERNEL);
315 if (!buf)
316 return -ENOMEM;
317
318 buf[0] = EGALAX_PKT_TYPE_DIAG;
319 buf[1] = 1; /* length */
320 buf[2] = 'A'; /* command - check active */
321
322 for (i = 0; i < 3; i++) {
323 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
324 0,
325 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
326 0, 0, buf, 3,
327 USB_CTRL_SET_TIMEOUT);
328 if (ret >= 0) {
329 ret = 0;
330 break;
331 }
332 if (ret != -EPIPE)
333 break;
334 }
335
336 kfree(buf);
337
338 return ret;
339}
340
c9d8c2b3 341static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023
DR		 342{
343 if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
344 return 0;
345
c9d8c2b3
DR		 346 dev->x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);
347 dev->y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);
348 dev->touch = pkt[0] & 0x01;
1d3e2023
DR		 349
350 return 1;
1d3e2023
DR		 351}
352
5d892665 353static int egalax_get_pkt_len(unsigned char *buf, int len)
1d3e2023
DR		 354{
355 switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
356 case EGALAX_PKT_TYPE_REPT:
357 return 5;
358
359 case EGALAX_PKT_TYPE_DIAG:
5d892665
DR		 360 if (len < 2)
361 return -1;
362
1d3e2023
DR		 363 return buf[1] + 2;
364 }
365
366 return 0;
367}
1d3e2023
DR		 368#endif
369
aa87512f
AV		 370/*****************************************************************************
371 * EasyTouch part
372 */
373
374#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
375
376#ifndef MULTI_PACKET
377#define MULTI_PACKET
378#endif
379
380#define ETOUCH_PKT_TYPE_MASK 0xFE
381#define ETOUCH_PKT_TYPE_REPT 0x80
382#define ETOUCH_PKT_TYPE_REPT2 0xB0
383#define ETOUCH_PKT_TYPE_DIAG 0x0A
384
385static int etouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
386{
387 if ((pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT &&
388 (pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT2)
389 return 0;
390
391 dev->x = ((pkt[1] & 0x1F) << 7) | (pkt[2] & 0x7F);
392 dev->y = ((pkt[3] & 0x1F) << 7) | (pkt[4] & 0x7F);
393 dev->touch = pkt[0] & 0x01;
394
395 return 1;
396}
397
398static int etouch_get_pkt_len(unsigned char *buf, int len)
399{
400 switch (buf[0] & ETOUCH_PKT_TYPE_MASK) {
401 case ETOUCH_PKT_TYPE_REPT:
402 case ETOUCH_PKT_TYPE_REPT2:
403 return 5;
404
405 case ETOUCH_PKT_TYPE_DIAG:
406 if (len < 2)
407 return -1;
408
409 return buf[1] + 2;
410 }
411
412 return 0;
413}
414#endif
1d3e2023
DR		 415
416/*****************************************************************************
417 * PanJit Part
418 */
c6f8d706 419#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
c9d8c2b3 420static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 421{
c9d8c2b3
DR		 422 dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
423 dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
424 dev->touch = pkt[0] & 0x01;
1d3e2023
DR		 425
426 return 1;
427}
428#endif
429
430
431/*****************************************************************************
432 * 3M/Microtouch Part
433 */
c6f8d706 434#ifdef CONFIG_TOUCHSCREEN_USB_3M
1d3e2023
DR		 435
436#define MTOUCHUSB_ASYNC_REPORT 1
437#define MTOUCHUSB_RESET 7
438#define MTOUCHUSB_REQ_CTRLLR_ID 10
439
c9d8c2b3 440static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 441{
c9cbf3d3
DS		 442 if (hwcalib_xy) {
443 dev->x = (pkt[4] << 8) | pkt[3];
444 dev->y = 0xffff - ((pkt[6] << 8) | pkt[5]);
445 } else {
446 dev->x = (pkt[8] << 8) | pkt[7];
447 dev->y = (pkt[10] << 8) | pkt[9];
448 }
c9d8c2b3 449 dev->touch = (pkt[2] & 0x40) ? 1 : 0;
1d3e2023
DR		 450
451 return 1;
452}
453
454static int mtouch_init(struct usbtouch_usb *usbtouch)
455{
5d892665 456 int ret, i;
fea4d14b 457 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
1d3e2023 458
fea4d14b 459 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1d3e2023
DR		 460 MTOUCHUSB_RESET,
461 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
462 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
0a5ebc88 463 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 464 "%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d\n",
465 __func__, ret);
1d3e2023
DR		 466 if (ret < 0)
467 return ret;
5d892665
DR		 468 msleep(150);
469
470 for (i = 0; i < 3; i++) {
fea4d14b 471 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
5d892665
DR		 472 MTOUCHUSB_ASYNC_REPORT,
473 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
474 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
0a5ebc88 475 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 476 "%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d\n",
477 __func__, ret);
5d892665
DR		 478 if (ret >= 0)
479 break;
480 if (ret != -EPIPE)
481 return ret;
482 }
1d3e2023 483
c9cbf3d3
DS		 484 /* Default min/max xy are the raw values, override if using hw-calib */
485 if (hwcalib_xy) {
486 input_set_abs_params(usbtouch->input, ABS_X, 0, 0xffff, 0, 0);
487 input_set_abs_params(usbtouch->input, ABS_Y, 0, 0xffff, 0, 0);
488 }
489
1d3e2023
DR		 490 return 0;
491}
492#endif
493
494
495/*****************************************************************************
496 * ITM Part
497 */
c6f8d706 498#ifdef CONFIG_TOUCHSCREEN_USB_ITM
c9d8c2b3 499static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 500{
c9d8c2b3
DR		 501 int touch;
502 /*
503 * ITM devices report invalid x/y data if not touched.
504 * if the screen was touched before but is not touched any more
505 * report touch as 0 with the last valid x/y data once. then stop
506 * reporting data until touched again.
507 */
508 dev->press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
509
510 touch = ~pkt[7] & 0x20;
511 if (!touch) {
512 if (dev->touch) {
513 dev->touch = 0;
514 return 1;
515 }
516
517 return 0;
518 }
519
520 dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
521 dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
522 dev->touch = touch;
1d3e2023 523
c9d8c2b3 524 return 1;
1d3e2023
DR		 525}
526#endif
527
528
5d892665
DR		 529/*****************************************************************************
530 * eTurboTouch part
531 */
c6f8d706 532#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
62aa366d
DR		 533#ifndef MULTI_PACKET
534#define MULTI_PACKET
535#endif
c9d8c2b3 536static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
5d892665
DR		 537{
538 unsigned int shift;
539
540 /* packets should start with sync */
541 if (!(pkt[0] & 0x80))
542 return 0;
543
544 shift = (6 - (pkt[0] & 0x03));
c9d8c2b3
DR		 545 dev->x = ((pkt[3] << 7) | pkt[4]) >> shift;
546 dev->y = ((pkt[1] << 7) | pkt[2]) >> shift;
547 dev->touch = (pkt[0] & 0x10) ? 1 : 0;
5d892665
DR		 548
549 return 1;
550}
551
552static int eturbo_get_pkt_len(unsigned char *buf, int len)
553{
554 if (buf[0] & 0x80)
555 return 5;
556 if (buf[0] == 0x01)
557 return 3;
558 return 0;
559}
560#endif
561
562
563/*****************************************************************************
564 * Gunze part
565 */
c6f8d706 566#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
c9d8c2b3 567static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
5d892665
DR		 568{
569 if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
570 return 0;
571
c9d8c2b3
DR		 572 dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
573 dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
574 dev->touch = pkt[0] & 0x20;
5d892665
DR		 575
576 return 1;
577}
578#endif
579
24ced062
HS		 580/*****************************************************************************
581 * DMC TSC-10/25 Part
582 *
583 * Documentation about the controller and it's protocol can be found at
584 * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf
585 * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf
586 */
c6f8d706 587#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
24ced062
HS		 588
589/* supported data rates. currently using 130 */
590#define TSC10_RATE_POINT 0x50
591#define TSC10_RATE_30 0x40
592#define TSC10_RATE_50 0x41
593#define TSC10_RATE_80 0x42
594#define TSC10_RATE_100 0x43
595#define TSC10_RATE_130 0x44
596#define TSC10_RATE_150 0x45
597
598/* commands */
599#define TSC10_CMD_RESET 0x55
600#define TSC10_CMD_RATE 0x05
601#define TSC10_CMD_DATA1 0x01
602
603static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
604{
fea4d14b 605 struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
76d057ce
ON		 606 int ret = -ENOMEM;
607 unsigned char *buf;
24ced062 608
a8aef622 609 buf = kmalloc(2, GFP_NOIO);
76d057ce
ON		 610 if (!buf)
611 goto err_nobuf;
24ced062
HS		 612 /* reset */
613 buf[0] = buf[1] = 0xFF;
614 ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
615 TSC10_CMD_RESET,
616 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
617 0, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
618 if (ret < 0)
76d057ce 619 goto err_out;
2ec6f246 620 if (buf[0] != 0x06) {
76d057ce
ON		 621 ret = -ENODEV;
622 goto err_out;
623 }
24ced062 624
96849170
BB		 625 /* TSC-25 data sheet specifies a delay after the RESET command */
626 msleep(150);
627
24ced062
HS		 628 /* set coordinate output rate */
629 buf[0] = buf[1] = 0xFF;
630 ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
631 TSC10_CMD_RATE,
632 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
633 TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
634 if (ret < 0)
76d057ce 635 goto err_out;
2ec6f246 636 if ((buf[0] != 0x06) && (buf[0] != 0x15 || buf[1] != 0x01)) {
76d057ce
ON		 637 ret = -ENODEV;
638 goto err_out;
639 }
24ced062
HS		 640
641 /* start sending data */
642 ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
643 TSC10_CMD_DATA1,
644 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
645 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
76d057ce
ON		 646err_out:
647 kfree(buf);
648err_nobuf:
649 return ret;
24ced062
HS		 650}
651
652
c9d8c2b3 653static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
24ced062 654{
c9d8c2b3
DR		 655 dev->x = ((pkt[2] & 0x03) << 8) | pkt[1];
656 dev->y = ((pkt[4] & 0x03) << 8) | pkt[3];
657 dev->touch = pkt[0] & 0x01;
24ced062
HS		 658
659 return 1;
660}
661#endif
662
663
df561fcd
OZ		 664/*****************************************************************************
665 * IRTOUCH Part
666 */
667#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
668static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
669{
670 dev->x = (pkt[3] << 8) | pkt[2];
671 dev->y = (pkt[5] << 8) | pkt[4];
672 dev->touch = (pkt[1] & 0x03) ? 1 : 0;
673
674 return 1;
675}
676#endif
677
dbe1420b 678/*****************************************************************************
38771bb4 679 * ET&T TC5UH/TC4UM part
dbe1420b 680 */
38771bb4
PŠ		 681#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
682static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
dbe1420b
PŠ		 683{
684 dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
685 dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
686 dev->touch = pkt[0] & 0x01;
687
688 return 1;
689}
690#endif
df561fcd 691
a14a8401
OZ		 692/*****************************************************************************
693 * IdealTEK URTC1000 Part
694 */
695#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
62aa366d
DR		 696#ifndef MULTI_PACKET
697#define MULTI_PACKET
698#endif
a14a8401
OZ		 699static int idealtek_get_pkt_len(unsigned char *buf, int len)
700{
701 if (buf[0] & 0x80)
702 return 5;
703 if (buf[0] == 0x01)
704 return len;
705 return 0;
706}
707
708static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
709{
710 switch (pkt[0] & 0x98) {
711 case 0x88:
712 /* touch data in IdealTEK mode */
713 dev->x = (pkt[1] << 5) | (pkt[2] >> 2);
714 dev->y = (pkt[3] << 5) | (pkt[4] >> 2);
715 dev->touch = (pkt[0] & 0x40) ? 1 : 0;
716 return 1;
717
718 case 0x98:
719 /* touch data in MT emulation mode */
720 dev->x = (pkt[2] << 5) | (pkt[1] >> 2);
721 dev->y = (pkt[4] << 5) | (pkt[3] >> 2);
722 dev->touch = (pkt[0] & 0x40) ? 1 : 0;
723 return 1;
724
725 default:
726 return 0;
727 }
728}
729#endif
730
9d5657db
IF		 731/*****************************************************************************
732 * General Touch Part
733 */
734#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
735static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
736{
eb083ba2
RY		 737 dev->x = (pkt[2] << 8) | pkt[1];
738 dev->y = (pkt[4] << 8) | pkt[3];
9d5657db
IF		 739 dev->press = pkt[5] & 0xff;
740 dev->touch = pkt[0] & 0x01;
741
742 return 1;
743}
744#endif
a14a8401 745
14e40206
JJ		 746/*****************************************************************************
747 * GoTop Part
748 */
749#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
750static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
751{
752 dev->x = ((pkt[1] & 0x38) << 4) | pkt[2];
753 dev->y = ((pkt[1] & 0x07) << 7) | pkt[3];
754 dev->touch = pkt[0] & 0x01;
f7370699
JP		 755
756 return 1;
757}
758#endif
759
760/*****************************************************************************
761 * JASTEC Part
762 */
763#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
764static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
765{
766 dev->x = ((pkt[0] & 0x3f) << 6) | (pkt[2] & 0x3f);
767 dev->y = ((pkt[1] & 0x3f) << 6) | (pkt[3] & 0x3f);
768 dev->touch = (pkt[0] & 0x40) >> 6;
769
14e40206
JJ		 770 return 1;
771}
772#endif
773
2330ed18
DS		 774/*****************************************************************************
775 * Zytronic Part
776 */
777#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
778static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
779{
0a5ebc88 780 struct usb_interface *intf = dev->interface;
b741ab9d 781
2330ed18
DS		 782 switch (pkt[0]) {
783 case 0x3A: /* command response */
0a5ebc88 784 dev_dbg(&intf->dev, "%s: Command response %d\n", __func__, pkt[1]);
2330ed18
DS		 785 break;
786
787 case 0xC0: /* down */
788 dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
789 dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
790 dev->touch = 1;
0a5ebc88 791 dev_dbg(&intf->dev, "%s: down %d,%d\n", __func__, dev->x, dev->y);
2330ed18
DS		 792 return 1;
793
794 case 0x80: /* up */
795 dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
796 dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
797 dev->touch = 0;
0a5ebc88 798 dev_dbg(&intf->dev, "%s: up %d,%d\n", __func__, dev->x, dev->y);
2330ed18
DS		 799 return 1;
800
801 default:
0a5ebc88 802 dev_dbg(&intf->dev, "%s: Unknown return %d\n", __func__, pkt[0]);
2330ed18
DS		 803 break;
804 }
805
806 return 0;
807}
808#endif
14e40206 809
5197424c
OZ		 810/*****************************************************************************
811 * NEXIO Part
812 */
813#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
814
815#define NEXIO_TIMEOUT 5000
816#define NEXIO_BUFSIZE 1024
817#define NEXIO_THRESHOLD 50
818
819struct nexio_priv {
820 struct urb *ack;
821 unsigned char *ack_buf;
822};
823
824struct nexio_touch_packet {
825 u8 flags; /* 0xe1 = touch, 0xe1 = release */
826 __be16 data_len; /* total bytes of touch data */
827 __be16 x_len; /* bytes for X axis */
828 __be16 y_len; /* bytes for Y axis */
829 u8 data[];
830} __attribute__ ((packed));
831
832static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 };
833static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
834
835static void nexio_ack_complete(struct urb *urb)
836{
837}
838
a8aef622
ON		 839static int nexio_alloc(struct usbtouch_usb *usbtouch)
840{
841 struct nexio_priv *priv;
842 int ret = -ENOMEM;
843
844 usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL);
845 if (!usbtouch->priv)
846 goto out_buf;
847
848 priv = usbtouch->priv;
849
850 priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt),
851 GFP_KERNEL);
852 if (!priv->ack_buf)
853 goto err_priv;
854
855 priv->ack = usb_alloc_urb(0, GFP_KERNEL);
856 if (!priv->ack) {
0a5ebc88 857 dev_dbg(&usbtouch->interface->dev,
b741ab9d 858 "%s - usb_alloc_urb failed: usbtouch->ack\n", __func__);
a8aef622
ON		 859 goto err_ack_buf;
860 }
861
862 return 0;
863
864err_ack_buf:
865 kfree(priv->ack_buf);
866err_priv:
867 kfree(priv);
868out_buf:
869 return ret;
870}
871
5197424c
OZ		 872static int nexio_init(struct usbtouch_usb *usbtouch)
873{
874 struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
875 struct usb_host_interface *interface = usbtouch->interface->cur_altsetting;
a8aef622 876 struct nexio_priv *priv = usbtouch->priv;
5197424c
OZ		 877 int ret = -ENOMEM;
878 int actual_len, i;
879 unsigned char *buf;
880 char *firmware_ver = NULL, *device_name = NULL;
881 int input_ep = 0, output_ep = 0;
882
883 /* find first input and output endpoint */
884 for (i = 0; i < interface->desc.bNumEndpoints; i++) {
885 if (!input_ep &&
886 usb_endpoint_dir_in(&interface->endpoint[i].desc))
887 input_ep = interface->endpoint[i].desc.bEndpointAddress;
888 if (!output_ep &&
889 usb_endpoint_dir_out(&interface->endpoint[i].desc))
890 output_ep = interface->endpoint[i].desc.bEndpointAddress;
891 }
892 if (!input_ep || !output_ep)
893 return -ENXIO;
894
a8aef622 895 buf = kmalloc(NEXIO_BUFSIZE, GFP_NOIO);
5197424c
OZ		 896 if (!buf)
897 goto out_buf;
898
899 /* two empty reads */
900 for (i = 0; i < 2; i++) {
901 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
902 buf, NEXIO_BUFSIZE, &actual_len,
903 NEXIO_TIMEOUT);
904 if (ret < 0)
905 goto out_buf;
906 }
907
908 /* send init command */
909 memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt));
910 ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep),
911 buf, sizeof(nexio_init_pkt), &actual_len,
912 NEXIO_TIMEOUT);
913 if (ret < 0)
914 goto out_buf;
915
916 /* read replies */
917 for (i = 0; i < 3; i++) {
918 memset(buf, 0, NEXIO_BUFSIZE);
919 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
920 buf, NEXIO_BUFSIZE, &actual_len,
921 NEXIO_TIMEOUT);
922 if (ret < 0 || actual_len < 1 || buf[1] != actual_len)
923 continue;
924 switch (buf[0]) {
925 case 0x83: /* firmware version */
926 if (!firmware_ver)
a8aef622 927 firmware_ver = kstrdup(&buf[2], GFP_NOIO);
5197424c
OZ		 928 break;
929 case 0x84: /* device name */
930 if (!device_name)
a8aef622 931 device_name = kstrdup(&buf[2], GFP_NOIO);
5197424c
OZ		 932 break;
933 }
934 }
935
936 printk(KERN_INFO "Nexio device: %s, firmware version: %s\n",
937 device_name, firmware_ver);
938
939 kfree(firmware_ver);
940 kfree(device_name);
941
5197424c
OZ		 942 usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep),
943 priv->ack_buf, sizeof(nexio_ack_pkt),
944 nexio_ack_complete, usbtouch);
945 ret = 0;
5197424c 946
5197424c
OZ		 947out_buf:
948 kfree(buf);
949 return ret;
950}
951
952static void nexio_exit(struct usbtouch_usb *usbtouch)
953{
954 struct nexio_priv *priv = usbtouch->priv;
955
956 usb_kill_urb(priv->ack);
957 usb_free_urb(priv->ack);
958 kfree(priv->ack_buf);
959 kfree(priv);
960}
961
962static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
963{
5197424c
OZ		 964 struct nexio_touch_packet *packet = (void *) pkt;
965 struct nexio_priv *priv = usbtouch->priv;
4aa5bbec
DT		 966 unsigned int data_len = be16_to_cpu(packet->data_len);
967 unsigned int x_len = be16_to_cpu(packet->x_len);
968 unsigned int y_len = be16_to_cpu(packet->y_len);
969 int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
5197424c
OZ		 970
971 /* got touch data? */
972 if ((pkt[0] & 0xe0) != 0xe0)
973 return 0;
974
4aa5bbec
DT		 975 if (data_len > 0xff)
976 data_len -= 0x100;
977 if (x_len > 0xff)
978 x_len -= 0x80;
388bbcad 979
5197424c
OZ		 980 /* send ACK */
981 ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
982
983 if (!usbtouch->type->max_xc) {
4aa5bbec
DT		 984 usbtouch->type->max_xc = 2 * x_len;
985 input_set_abs_params(usbtouch->input, ABS_X,
986 0, usbtouch->type->max_xc, 0, 0);
987 usbtouch->type->max_yc = 2 * y_len;
988 input_set_abs_params(usbtouch->input, ABS_Y,
989 0, usbtouch->type->max_yc, 0, 0);
5197424c
OZ		 990 }
991 /*
992 * The device reports state of IR sensors on X and Y axes.
993 * Each byte represents "darkness" percentage (0-100) of one element.
994 * 17" touchscreen reports only 64 x 52 bytes so the resolution is low.
995 * This also means that there's a limited multi-touch capability but
996 * it's disabled (and untested) here as there's no X driver for that.
997 */
998 begin_x = end_x = begin_y = end_y = -1;
4aa5bbec 999 for (x = 0; x < x_len; x++) {
5197424c
OZ		 1000 if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) {
1001 begin_x = x;
1002 continue;
1003 }
1004 if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) {
1005 end_x = x - 1;
4aa5bbec 1006 for (y = x_len; y < data_len; y++) {
5197424c 1007 if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) {
4aa5bbec 1008 begin_y = y - x_len;
5197424c
OZ		 1009 continue;
1010 }
1011 if (end_y == -1 &&
1012 begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) {
4aa5bbec 1013 end_y = y - 1 - x_len;
5197424c
OZ		 1014 w = end_x - begin_x;
1015 h = end_y - begin_y;
1016#if 0
1017 /* multi-touch */
1018 input_report_abs(usbtouch->input,
1019 ABS_MT_TOUCH_MAJOR, max(w,h));
1020 input_report_abs(usbtouch->input,
1021 ABS_MT_TOUCH_MINOR, min(x,h));
1022 input_report_abs(usbtouch->input,
1023 ABS_MT_POSITION_X, 2*begin_x+w);
1024 input_report_abs(usbtouch->input,
1025 ABS_MT_POSITION_Y, 2*begin_y+h);
1026 input_report_abs(usbtouch->input,
1027 ABS_MT_ORIENTATION, w > h);
1028 input_mt_sync(usbtouch->input);
1029#endif
1030 /* single touch */
1031 usbtouch->x = 2 * begin_x + w;
1032 usbtouch->y = 2 * begin_y + h;
1033 usbtouch->touch = packet->flags & 0x01;
1034 begin_y = end_y = -1;
1035 return 1;
1036 }
1037 }
1038 begin_x = end_x = -1;
1039 }
1040
1041 }
1042 return 0;
1043}
1044#endif
1045
1046
d2cc817a
MG		 1047/*****************************************************************************
1048 * ELO part
1049 */
1050
1051#ifdef CONFIG_TOUCHSCREEN_USB_ELO
1052
1053static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1054{
1055 dev->x = (pkt[3] << 8) | pkt[2];
1056 dev->y = (pkt[5] << 8) | pkt[4];
1057 dev->touch = pkt[6] > 0;
1058 dev->press = pkt[6];
1059
1060 return 1;
1061}
1062#endif
1063
1064
1d3e2023
DR		 1065/*****************************************************************************
1066 * the different device descriptors
1067 */
62aa366d
DR		 1068#ifdef MULTI_PACKET
1069static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
1070 unsigned char *pkt, int len);
1071#endif
1072
1d3e2023 1073static struct usbtouch_device_info usbtouch_dev_info[] = {
d2cc817a
MG		 1074#ifdef CONFIG_TOUCHSCREEN_USB_ELO
1075 [DEVTYPE_ELO] = {
1076 .min_xc = 0x0,
1077 .max_xc = 0x0fff,
1078 .min_yc = 0x0,
1079 .max_yc = 0x0fff,
1080 .max_press = 0xff,
1081 .rept_size = 8,
1082 .read_data = elo_read_data,
1083 },
1084#endif
1085
c6f8d706 1086#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
1d3e2023
DR		 1087 [DEVTYPE_EGALAX] = {
1088 .min_xc = 0x0,
1089 .max_xc = 0x07ff,
1090 .min_yc = 0x0,
1091 .max_yc = 0x07ff,
1092 .rept_size = 16,
5d892665
DR		 1093 .process_pkt = usbtouch_process_multi,
1094 .get_pkt_len = egalax_get_pkt_len,
1d3e2023 1095 .read_data = egalax_read_data,
037a833e 1096 .init = egalax_init,
1d3e2023
DR		 1097 },
1098#endif
1099
c6f8d706 1100#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
1d3e2023
DR		 1101 [DEVTYPE_PANJIT] = {
1102 .min_xc = 0x0,
1103 .max_xc = 0x0fff,
1104 .min_yc = 0x0,
1105 .max_yc = 0x0fff,
1106 .rept_size = 8,
1107 .read_data = panjit_read_data,
1108 },
1109#endif
1110
c6f8d706 1111#ifdef CONFIG_TOUCHSCREEN_USB_3M
1d3e2023
DR		 1112 [DEVTYPE_3M] = {
1113 .min_xc = 0x0,
1114 .max_xc = 0x4000,
1115 .min_yc = 0x0,
1116 .max_yc = 0x4000,
1117 .rept_size = 11,
1118 .read_data = mtouch_read_data,
1119 .init = mtouch_init,
1120 },
1121#endif
1122
c6f8d706 1123#ifdef CONFIG_TOUCHSCREEN_USB_ITM
1d3e2023
DR		 1124 [DEVTYPE_ITM] = {
1125 .min_xc = 0x0,
1126 .max_xc = 0x0fff,
1127 .min_yc = 0x0,
1128 .max_yc = 0x0fff,
1129 .max_press = 0xff,
1130 .rept_size = 8,
1131 .read_data = itm_read_data,
1132 },
1133#endif
5d892665 1134
c6f8d706 1135#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
5d892665
DR		 1136 [DEVTYPE_ETURBO] = {
1137 .min_xc = 0x0,
1138 .max_xc = 0x07ff,
1139 .min_yc = 0x0,
1140 .max_yc = 0x07ff,
1141 .rept_size = 8,
5d892665
DR		 1142 .process_pkt = usbtouch_process_multi,
1143 .get_pkt_len = eturbo_get_pkt_len,
1144 .read_data = eturbo_read_data,
1145 },
1146#endif
1147
c6f8d706 1148#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
5d892665
DR		 1149 [DEVTYPE_GUNZE] = {
1150 .min_xc = 0x0,
1151 .max_xc = 0x0fff,
1152 .min_yc = 0x0,
1153 .max_yc = 0x0fff,
1154 .rept_size = 4,
1155 .read_data = gunze_read_data,
1156 },
1157#endif
24ced062 1158
c6f8d706 1159#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
24ced062
HS		 1160 [DEVTYPE_DMC_TSC10] = {
1161 .min_xc = 0x0,
1162 .max_xc = 0x03ff,
1163 .min_yc = 0x0,
1164 .max_yc = 0x03ff,
1165 .rept_size = 5,
1166 .init = dmc_tsc10_init,
1167 .read_data = dmc_tsc10_read_data,
1168 },
1169#endif
df561fcd
OZ		 1170
1171#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
1172 [DEVTYPE_IRTOUCH] = {
1173 .min_xc = 0x0,
1174 .max_xc = 0x0fff,
1175 .min_yc = 0x0,
1176 .max_yc = 0x0fff,
1177 .rept_size = 8,
1178 .read_data = irtouch_read_data,
1179 },
dbea4032
LP		 1180
1181 [DEVTYPE_IRTOUCH_HIRES] = {
1182 .min_xc = 0x0,
1183 .max_xc = 0x7fff,
1184 .min_yc = 0x0,
1185 .max_yc = 0x7fff,
1186 .rept_size = 8,
1187 .read_data = irtouch_read_data,
1188 },
df561fcd 1189#endif
a14a8401
OZ		 1190
1191#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
1192 [DEVTYPE_IDEALTEK] = {
1193 .min_xc = 0x0,
1194 .max_xc = 0x0fff,
1195 .min_yc = 0x0,
1196 .max_yc = 0x0fff,
1197 .rept_size = 8,
a14a8401
OZ		 1198 .process_pkt = usbtouch_process_multi,
1199 .get_pkt_len = idealtek_get_pkt_len,
1200 .read_data = idealtek_read_data,
1201 },
1202#endif
9d5657db
IF		 1203
1204#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
1205 [DEVTYPE_GENERAL_TOUCH] = {
1206 .min_xc = 0x0,
eb083ba2 1207 .max_xc = 0x7fff,
9d5657db 1208 .min_yc = 0x0,
eb083ba2 1209 .max_yc = 0x7fff,
9d5657db
IF		 1210 .rept_size = 7,
1211 .read_data = general_touch_read_data,
14e40206 1212 },
9d5657db
IF		 1213#endif
1214
14e40206
JJ		 1215#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
1216 [DEVTYPE_GOTOP] = {
1217 .min_xc = 0x0,
1218 .max_xc = 0x03ff,
1219 .min_yc = 0x0,
1220 .max_yc = 0x03ff,
1221 .rept_size = 4,
1222 .read_data = gotop_read_data,
1223 },
1224#endif
f7370699
JP		 1225
1226#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
1227 [DEVTYPE_JASTEC] = {
1228 .min_xc = 0x0,
1229 .max_xc = 0x0fff,
1230 .min_yc = 0x0,
1231 .max_yc = 0x0fff,
1232 .rept_size = 4,
1233 .read_data = jastec_read_data,
1234 },
1235#endif
9e3b2583
FE		 1236
1237#ifdef CONFIG_TOUCHSCREEN_USB_E2I
1238 [DEVTYPE_E2I] = {
1239 .min_xc = 0x0,
1240 .max_xc = 0x7fff,
1241 .min_yc = 0x0,
1242 .max_yc = 0x7fff,
1243 .rept_size = 6,
1244 .init = e2i_init,
1245 .read_data = e2i_read_data,
1246 },
1247#endif
2330ed18
DS		 1248
1249#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
1250 [DEVTYPE_ZYTRONIC] = {
1251 .min_xc = 0x0,
1252 .max_xc = 0x03ff,
1253 .min_yc = 0x0,
1254 .max_yc = 0x03ff,
1255 .rept_size = 5,
1256 .read_data = zytronic_read_data,
1257 .irq_always = true,
1258 },
1259#endif
dbe1420b 1260
38771bb4
PŠ		 1261#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
1262 [DEVTYPE_TC45USB] = {
dbe1420b
PŠ		 1263 .min_xc = 0x0,
1264 .max_xc = 0x0fff,
1265 .min_yc = 0x0,
1266 .max_yc = 0x0fff,
1267 .rept_size = 5,
38771bb4 1268 .read_data = tc45usb_read_data,
dbe1420b
PŠ		 1269 },
1270#endif
5197424c
OZ		 1271
1272#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
1273 [DEVTYPE_NEXIO] = {
388bbcad 1274 .rept_size = 1024,
5197424c
OZ		 1275 .irq_always = true,
1276 .read_data = nexio_read_data,
a8aef622 1277 .alloc = nexio_alloc,
5197424c
OZ		 1278 .init = nexio_init,
1279 .exit = nexio_exit,
1280 },
1281#endif
aa87512f
AV		 1282#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
1283 [DEVTYPE_ETOUCH] = {
1284 .min_xc = 0x0,
1285 .max_xc = 0x07ff,
1286 .min_yc = 0x0,
1287 .max_yc = 0x07ff,
1288 .rept_size = 16,
1289 .process_pkt = usbtouch_process_multi,
1290 .get_pkt_len = etouch_get_pkt_len,
1291 .read_data = etouch_read_data,
1292 },
1293#endif
1d3e2023
DR		 1294};
1295
1296
1297/*****************************************************************************
1298 * Generic Part
1299 */
1300static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
7d12e780 1301 unsigned char *pkt, int len)
1d3e2023 1302{
1d3e2023
DR		 1303 struct usbtouch_device_info *type = usbtouch->type;
1304
c9d8c2b3 1305 if (!type->read_data(usbtouch, pkt))
1d3e2023
DR		 1306 return;
1307
c9d8c2b3 1308 input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch);
1d3e2023
DR		 1309
1310 if (swap_xy) {
c9d8c2b3
DR		 1311 input_report_abs(usbtouch->input, ABS_X, usbtouch->y);
1312 input_report_abs(usbtouch->input, ABS_Y, usbtouch->x);
1d3e2023 1313 } else {
c9d8c2b3
DR		 1314 input_report_abs(usbtouch->input, ABS_X, usbtouch->x);
1315 input_report_abs(usbtouch->input, ABS_Y, usbtouch->y);
1d3e2023
DR		 1316 }
1317 if (type->max_press)
c9d8c2b3 1318 input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press);
1d3e2023
DR		 1319 input_sync(usbtouch->input);
1320}
1321
1322
5d892665
DR		 1323#ifdef MULTI_PACKET
1324static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
5d892665
DR		 1325 unsigned char *pkt, int len)
1326{
1327 unsigned char *buffer;
1328 int pkt_len, pos, buf_len, tmp;
1329
1330 /* process buffer */
1331 if (unlikely(usbtouch->buf_len)) {
1332 /* try to get size */
1333 pkt_len = usbtouch->type->get_pkt_len(
1334 usbtouch->buffer, usbtouch->buf_len);
1335
1336 /* drop? */
1337 if (unlikely(!pkt_len))
1338 goto out_flush_buf;
1339
1340 /* need to append -pkt_len bytes before able to get size */
1341 if (unlikely(pkt_len < 0)) {
1342 int append = -pkt_len;
1343 if (unlikely(append > len))
1344 append = len;
1345 if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
1346 goto out_flush_buf;
1347 memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
1348 usbtouch->buf_len += append;
1349
1350 pkt_len = usbtouch->type->get_pkt_len(
1351 usbtouch->buffer, usbtouch->buf_len);
1352 if (pkt_len < 0)
1353 return;
1354 }
1355
1356 /* append */
1357 tmp = pkt_len - usbtouch->buf_len;
1358 if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
1359 goto out_flush_buf;
1360 memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
7d12e780 1361 usbtouch_process_pkt(usbtouch, usbtouch->buffer, pkt_len);
5d892665
DR		 1362
1363 buffer = pkt + tmp;
1364 buf_len = len - tmp;
1365 } else {
1366 buffer = pkt;
1367 buf_len = len;
1368 }
1369
1370 /* loop over the received packet, process */
1371 pos = 0;
1372 while (pos < buf_len) {
1373 /* get packet len */
62aa366d
DR		 1374 pkt_len = usbtouch->type->get_pkt_len(buffer + pos,
1375 buf_len - pos);
5d892665 1376
62aa366d
DR		 1377 /* unknown packet: skip one byte */
1378 if (unlikely(!pkt_len)) {
1379 pos++;
1380 continue;
1381 }
5d892665
DR		 1382
1383 /* full packet: process */
1384 if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
7d12e780 1385 usbtouch_process_pkt(usbtouch, buffer + pos, pkt_len);
5d892665
DR		 1386 } else {
1387 /* incomplete packet: save in buffer */
1388 memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
1389 usbtouch->buf_len = buf_len - pos;
1390 return;
1391 }
1392 pos += pkt_len;
1393 }
1394
1395out_flush_buf:
1396 usbtouch->buf_len = 0;
1397 return;
1398}
1399#endif
1400
1401
7d12e780 1402static void usbtouch_irq(struct urb *urb)
1d3e2023
DR		 1403{
1404 struct usbtouch_usb *usbtouch = urb->context;
0a5ebc88 1405 struct device *dev = &usbtouch->interface->dev;
1d3e2023
DR		 1406 int retval;
1407
1408 switch (urb->status) {
1409 case 0:
1410 /* success */
1411 break;
38e2bfc9 1412 case -ETIME:
1d3e2023 1413 /* this urb is timing out */
b741ab9d
GKH		 1414 dev_dbg(dev,
1415 "%s - urb timed out - was the device unplugged?\n",
1416 __func__);
1d3e2023
DR		 1417 return;
1418 case -ECONNRESET:
1419 case -ENOENT:
1420 case -ESHUTDOWN:
5197424c 1421 case -EPIPE:
1d3e2023 1422 /* this urb is terminated, clean up */
b741ab9d
GKH		 1423 dev_dbg(dev, "%s - urb shutting down with status: %d\n",
1424 __func__, urb->status);
1d3e2023
DR		 1425 return;
1426 default:
b741ab9d
GKH		 1427 dev_dbg(dev, "%s - nonzero urb status received: %d\n",
1428 __func__, urb->status);
1d3e2023
DR		 1429 goto exit;
1430 }
1431
7d12e780 1432 usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length);
1d3e2023
DR		 1433
1434exit:
5d9efc59 1435 usb_mark_last_busy(interface_to_usbdev(usbtouch->interface));
1d3e2023
DR		 1436 retval = usb_submit_urb(urb, GFP_ATOMIC);
1437 if (retval)
0a5ebc88 1438 dev_err(dev, "%s - usb_submit_urb failed with result: %d\n",
e27ad0fe 1439 __func__, retval);
1d3e2023
DR		 1440}
1441
1442static int usbtouch_open(struct input_dev *input)
1443{
7791bdae 1444 struct usbtouch_usb *usbtouch = input_get_drvdata(input);
5d9efc59 1445 int r;
1d3e2023 1446
fea4d14b 1447 usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface);
1d3e2023 1448
5d9efc59
ON		 1449 r = usb_autopm_get_interface(usbtouch->interface) ? -EIO : 0;
1450 if (r < 0)
1451 goto out;
1452
2330ed18 1453 if (!usbtouch->type->irq_always) {
5d9efc59
ON		 1454 if (usb_submit_urb(usbtouch->irq, GFP_KERNEL)) {
1455 r = -EIO;
1456 goto out_put;
1457 }
2330ed18 1458 }
1d3e2023 1459
5d9efc59
ON		 1460 usbtouch->interface->needs_remote_wakeup = 1;
1461out_put:
1462 usb_autopm_put_interface(usbtouch->interface);
1463out:
1464 return r;
1d3e2023
DR		 1465}
1466
1467static void usbtouch_close(struct input_dev *input)
1468{
7791bdae 1469 struct usbtouch_usb *usbtouch = input_get_drvdata(input);
5d9efc59 1470 int r;
1d3e2023 1471
2330ed18
DS		 1472 if (!usbtouch->type->irq_always)
1473 usb_kill_urb(usbtouch->irq);
5d9efc59
ON		 1474 r = usb_autopm_get_interface(usbtouch->interface);
1475 usbtouch->interface->needs_remote_wakeup = 0;
1476 if (!r)
1477 usb_autopm_put_interface(usbtouch->interface);
1d3e2023
DR		 1478}
1479
ed4299e1
ON		 1480static int usbtouch_suspend
1481(struct usb_interface *intf, pm_message_t message)
1482{
1483 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1484
1485 usb_kill_urb(usbtouch->irq);
1486
1487 return 0;
1488}
1489
1490static int usbtouch_resume(struct usb_interface *intf)
1491{
1492 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1493 struct input_dev *input = usbtouch->input;
1494 int result = 0;
1495
1496 mutex_lock(&input->mutex);
1497 if (input->users || usbtouch->type->irq_always)
1498 result = usb_submit_urb(usbtouch->irq, GFP_NOIO);
1499 mutex_unlock(&input->mutex);
1500
1501 return result;
1502}
1d3e2023 1503
a8aef622
ON		 1504static int usbtouch_reset_resume(struct usb_interface *intf)
1505{
1506 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1507 struct input_dev *input = usbtouch->input;
1508 int err = 0;
1509
1510 /* reinit the device */
1511 if (usbtouch->type->init) {
1512 err = usbtouch->type->init(usbtouch);
1513 if (err) {
0a5ebc88 1514 dev_dbg(&intf->dev,
b741ab9d
GKH		 1515 "%s - type->init() failed, err: %d\n",
1516 __func__, err);
a8aef622
ON		 1517 return err;
1518 }
1519 }
1520
1521 /* restart IO if needed */
1522 mutex_lock(&input->mutex);
1523 if (input->users)
1524 err = usb_submit_urb(usbtouch->irq, GFP_NOIO);
1525 mutex_unlock(&input->mutex);
1526
1527 return err;
1528}
1529
1d3e2023
DR		 1530static void usbtouch_free_buffers(struct usb_device *udev,
1531 struct usbtouch_usb *usbtouch)
1532{
4ef38351 1533 usb_free_coherent(udev, usbtouch->data_size,
997ea58e 1534 usbtouch->data, usbtouch->data_dma);
1d3e2023
DR		 1535 kfree(usbtouch->buffer);
1536}
1537
f4a5e359
OZ		 1538static struct usb_endpoint_descriptor *
1539usbtouch_get_input_endpoint(struct usb_host_interface *interface)
1540{
1541 int i;
1542
1543 for (i = 0; i < interface->desc.bNumEndpoints; i++)
1544 if (usb_endpoint_dir_in(&interface->endpoint[i].desc))
1545 return &interface->endpoint[i].desc;
1546
1547 return NULL;
1548}
1d3e2023
DR		 1549
1550static int usbtouch_probe(struct usb_interface *intf,
1551 const struct usb_device_id *id)
1552{
1553 struct usbtouch_usb *usbtouch;
1554 struct input_dev *input_dev;
1d3e2023
DR		 1555 struct usb_endpoint_descriptor *endpoint;
1556 struct usb_device *udev = interface_to_usbdev(intf);
1557 struct usbtouch_device_info *type;
5d892665 1558 int err = -ENOMEM;
ec42d448
DR		 1559
1560 /* some devices are ignored */
1561 if (id->driver_info == DEVTYPE_IGNORE)
1562 return -ENODEV;
1d3e2023 1563
f4a5e359
OZ		 1564 endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting);
1565 if (!endpoint)
1566 return -ENXIO;
1d3e2023
DR		 1567
1568 usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);
1569 input_dev = input_allocate_device();
1570 if (!usbtouch || !input_dev)
1571 goto out_free;
1572
1573 type = &usbtouch_dev_info[id->driver_info];
1574 usbtouch->type = type;
1575 if (!type->process_pkt)
1576 type->process_pkt = usbtouch_process_pkt;
1577
4ef38351
CE		 1578 usbtouch->data_size = type->rept_size;
1579 if (type->get_pkt_len) {
1580 /*
1581 * When dealing with variable-length packets we should
1582 * not request more than wMaxPacketSize bytes at once
1583 * as we do not know if there is more data coming or
1584 * we filled exactly wMaxPacketSize bytes and there is
1585 * nothing else.
1586 */
1587 usbtouch->data_size = min(usbtouch->data_size,
1588 usb_endpoint_maxp(endpoint));
1589 }
1590
1591 usbtouch->data = usb_alloc_coherent(udev, usbtouch->data_size,
997ea58e 1592 GFP_KERNEL, &usbtouch->data_dma);
1d3e2023
DR		 1593 if (!usbtouch->data)
1594 goto out_free;
1595
62aa366d 1596 if (type->get_pkt_len) {
1d3e2023
DR		 1597 usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);
1598 if (!usbtouch->buffer)
1599 goto out_free_buffers;
1600 }
1601
1602 usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
1603 if (!usbtouch->irq) {
b741ab9d
GKH		 1604 dev_dbg(&intf->dev,
1605 "%s - usb_alloc_urb failed: usbtouch->irq\n", __func__);
1d3e2023
DR		 1606 goto out_free_buffers;
1607 }
1608
fea4d14b 1609 usbtouch->interface = intf;
1d3e2023
DR		 1610 usbtouch->input = input_dev;
1611
1612 if (udev->manufacturer)
1613 strlcpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));
1614
1615 if (udev->product) {
1616 if (udev->manufacturer)
1617 strlcat(usbtouch->name, " ", sizeof(usbtouch->name));
1618 strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));
1619 }
1620
1621 if (!strlen(usbtouch->name))
1622 snprintf(usbtouch->name, sizeof(usbtouch->name),
1623 "USB Touchscreen %04x:%04x",
1624 le16_to_cpu(udev->descriptor.idVendor),
1625 le16_to_cpu(udev->descriptor.idProduct));
1626
1627 usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
7b6dff98 1628 strlcat(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
1d3e2023
DR		 1629
1630 input_dev->name = usbtouch->name;
1631 input_dev->phys = usbtouch->phys;
1632 usb_to_input_id(udev, &input_dev->id);
c0f82d57 1633 input_dev->dev.parent = &intf->dev;
7791bdae
DT		 1634
1635 input_set_drvdata(input_dev, usbtouch);
1636
1d3e2023
DR		 1637 input_dev->open = usbtouch_open;
1638 input_dev->close = usbtouch_close;
1639
7b19ada2
JS		 1640 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
1641 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
1d3e2023
DR		 1642 input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);
1643 input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);
1644 if (type->max_press)
1645 input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
1646 type->max_press, 0, 0);
1647
5197424c
OZ		 1648 if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT)
1649 usb_fill_int_urb(usbtouch->irq, udev,
fea4d14b 1650 usb_rcvintpipe(udev, endpoint->bEndpointAddress),
4ef38351 1651 usbtouch->data, usbtouch->data_size,
1d3e2023 1652 usbtouch_irq, usbtouch, endpoint->bInterval);
5197424c
OZ		 1653 else
1654 usb_fill_bulk_urb(usbtouch->irq, udev,
1655 usb_rcvbulkpipe(udev, endpoint->bEndpointAddress),
4ef38351 1656 usbtouch->data, usbtouch->data_size,
5197424c 1657 usbtouch_irq, usbtouch);
1d3e2023 1658
fea4d14b 1659 usbtouch->irq->dev = udev;
1d3e2023
DR		 1660 usbtouch->irq->transfer_dma = usbtouch->data_dma;
1661 usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1662
a8aef622
ON		 1663 /* device specific allocations */
1664 if (type->alloc) {
1665 err = type->alloc(usbtouch);
1666 if (err) {
b741ab9d
GKH		 1667 dev_dbg(&intf->dev,
1668 "%s - type->alloc() failed, err: %d\n",
1669 __func__, err);
a8aef622
ON		 1670 goto out_free_urb;
1671 }
1672 }
1673
1674 /* device specific initialisation*/
1d3e2023
DR		 1675 if (type->init) {
1676 err = type->init(usbtouch);
1677 if (err) {
b741ab9d
GKH		 1678 dev_dbg(&intf->dev,
1679 "%s - type->init() failed, err: %d\n",
1680 __func__, err);
a8aef622 1681 goto out_do_exit;
1d3e2023
DR		 1682 }
1683 }
1684
1685 err = input_register_device(usbtouch->input);
1686 if (err) {
b741ab9d
GKH		 1687 dev_dbg(&intf->dev,
1688 "%s - input_register_device failed, err: %d\n",
1689 __func__, err);
5197424c 1690 goto out_do_exit;
1d3e2023
DR		 1691 }
1692
1693 usb_set_intfdata(intf, usbtouch);
1694
1e87a430 1695 if (usbtouch->type->irq_always) {
5d9efc59
ON		 1696 /* this can't fail */
1697 usb_autopm_get_interface(intf);
1e87a430
OZ		 1698 err = usb_submit_urb(usbtouch->irq, GFP_KERNEL);
1699 if (err) {
5d9efc59 1700 usb_autopm_put_interface(intf);
0a5ebc88 1701 dev_err(&intf->dev,
e27ad0fe
GKH		 1702 "%s - usb_submit_urb failed with result: %d\n",
1703 __func__, err);
1e87a430
OZ		 1704 goto out_unregister_input;
1705 }
1706 }
2330ed18 1707
1d3e2023
DR		 1708 return 0;
1709
1e87a430
OZ		 1710out_unregister_input:
1711 input_unregister_device(input_dev);
1712 input_dev = NULL;
5197424c
OZ		 1713out_do_exit:
1714 if (type->exit)
1715 type->exit(usbtouch);
1e87a430
OZ		 1716out_free_urb:
1717 usb_free_urb(usbtouch->irq);
1d3e2023
DR		 1718out_free_buffers:
1719 usbtouch_free_buffers(udev, usbtouch);
1720out_free:
1721 input_free_device(input_dev);
1722 kfree(usbtouch);
5d892665 1723 return err;
1d3e2023
DR		 1724}
1725
1726static void usbtouch_disconnect(struct usb_interface *intf)
1727{
1728 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1729
1d3e2023
DR		 1730 if (!usbtouch)
1731 return;
1732
0a5ebc88 1733 dev_dbg(&intf->dev,
b741ab9d
GKH		 1734 "%s - usbtouch is initialized, cleaning up\n", __func__);
1735
1d3e2023 1736 usb_set_intfdata(intf, NULL);
722232bc 1737 /* this will stop IO via close */
1d3e2023
DR		 1738 input_unregister_device(usbtouch->input);
1739 usb_free_urb(usbtouch->irq);
5197424c
OZ		 1740 if (usbtouch->type->exit)
1741 usbtouch->type->exit(usbtouch);
1d3e2023
DR		 1742 usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
1743 kfree(usbtouch);
1744}
1745
1746MODULE_DEVICE_TABLE(usb, usbtouch_devices);
1747
1748static struct usb_driver usbtouch_driver = {
1749 .name = "usbtouchscreen",
1750 .probe = usbtouch_probe,
1751 .disconnect = usbtouch_disconnect,
ed4299e1
ON		 1752 .suspend = usbtouch_suspend,
1753 .resume = usbtouch_resume,
a8aef622 1754 .reset_resume = usbtouch_reset_resume,
1d3e2023 1755 .id_table = usbtouch_devices,
5d9efc59 1756 .supports_autosuspend = 1,
1d3e2023
DR		 1757};
1758
08642e7c 1759module_usb_driver(usbtouch_driver);
1d3e2023 1760
698c03b4
JL		 1761MODULE_AUTHOR("Daniel Ritz <daniel.ritz@gmx.ch>");
1762MODULE_DESCRIPTION("USB Touchscreen Driver");
1d3e2023
DR		 1763MODULE_LICENSE("GPL");
1764
1765MODULE_ALIAS("touchkitusb");
1766MODULE_ALIAS("itmtouch");
1767MODULE_ALIAS("mtouchusb");
Linux 6.x block layer and io_uring tree(s)