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Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux...
[linux-2.6-block.git] / drivers / input / touchscreen / usbtouchscreen.c
CommitLineData
74ba9207 1// SPDX-License-Identifier: GPL-2.0-or-later
1d3e2023
DR		 2/******************************************************************************
3 * usbtouchscreen.c
4 * Driver for USB Touchscreens, supporting those devices:
5 * - eGalax Touchkit
5d892665
DR		 6 * includes eTurboTouch CT-410/510/700
7 * - 3M/Microtouch EX II series
1d3e2023
DR		 8 * - ITM
9 * - PanJit TouchSet
5d892665
DR		 10 * - eTurboTouch
11 * - Gunze AHL61
24ced062 12 * - DMC TSC-10/25
df561fcd 13 * - IRTOUCHSYSTEMS/UNITOP
a14a8401 14 * - IdealTEK URTC1000
62aa366d 15 * - General Touch
14e40206 16 * - GoTop Super_Q2/GogoPen/PenPower tablets
f7370699 17 * - JASTEC USB touch controller/DigiTech DTR-02U
2330ed18 18 * - Zytronic capacitive touchscreen
5197424c 19 * - NEXIO/iNexio
d2cc817a 20 * - Elo TouchSystems 2700 IntelliTouch
aa87512f 21 * - EasyTouch USB Dual/Multi touch controller from Data Modul
1d3e2023 22 *
14e40206 23 * Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
1d3e2023
DR		 24 * Copyright (C) by Todd E. Johnson (mtouchusb.c)
25 *
1d3e2023
DR		 26 * Driver is based on touchkitusb.c
27 * - ITM parts are from itmtouch.c
28 * - 3M parts are from mtouchusb.c
29 * - PanJit parts are from an unmerged driver by Lanslott Gish
24ced062
HS		 30 * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged
31 * driver from Marius Vollmer
1d3e2023
DR		 32 *
33 *****************************************************************************/
34
35//#define DEBUG
36
1d3e2023
DR		 37#include <linux/kernel.h>
38#include <linux/slab.h>
39#include <linux/input.h>
40#include <linux/module.h>
1d3e2023 41#include <linux/usb.h>
ae0dadcf 42#include <linux/usb/input.h>
ec42d448 43#include <linux/hid.h>
12e510db 44#include <linux/mutex.h>
1d3e2023 45
90ab5ee9 46static bool swap_xy;
1d3e2023
DR		 47module_param(swap_xy, bool, 0644);
48MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
49
90ab5ee9 50static bool hwcalib_xy;
c9cbf3d3
DS		 51module_param(hwcalib_xy, bool, 0644);
52MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available");
53
1d3e2023
DR		 54/* device specifc data/functions */
55struct usbtouch_usb;
56struct usbtouch_device_info {
57 int min_xc, max_xc;
58 int min_yc, max_yc;
59 int min_press, max_press;
60 int rept_size;
1d3e2023 61
2330ed18
DS		 62 /*
63 * Always service the USB devices irq not just when the input device is
64 * open. This is useful when devices have a watchdog which prevents us
65 * from periodically polling the device. Leave this unset unless your
66 * touchscreen device requires it, as it does consume more of the USB
67 * bandwidth.
68 */
69 bool irq_always;
70
62aa366d
DR		 71 /*
72 * used to get the packet len. possible return values:
73 * > 0: packet len
74 * = 0: skip one byte
75 * < 0: -return value more bytes needed
76 */
5d892665 77 int (*get_pkt_len) (unsigned char *pkt, int len);
62aa366d 78
c9d8c2b3 79 int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
a8aef622 80 int (*alloc) (struct usbtouch_usb *usbtouch);
1d3e2023 81 int (*init) (struct usbtouch_usb *usbtouch);
5197424c 82 void (*exit) (struct usbtouch_usb *usbtouch);
1d3e2023
DR		 83};
84
1d3e2023
DR		 85/* a usbtouch device */
86struct usbtouch_usb {
87 unsigned char *data;
88 dma_addr_t data_dma;
4ef38351 89 int data_size;
1d3e2023
DR		 90 unsigned char *buffer;
91 int buf_len;
92 struct urb *irq;
fea4d14b 93 struct usb_interface *interface;
1d3e2023 94 struct input_dev *input;
830f06c0 95 const struct usbtouch_device_info *type;
12e510db 96 struct mutex pm_mutex; /* serialize access to open/suspend */
85f46fbf 97 bool is_open;
1d3e2023
DR		 98 char name[128];
99 char phys[64];
5197424c 100 void *priv;
c9d8c2b3
DR		 101
102 int x, y;
103 int touch, press;
fbb1c922
DT		 104
105 void (*process_pkt)(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);
1d3e2023
DR		 106};
107
5d892665 108
9e3b2583
FE		 109/*****************************************************************************
110 * e2i Part
111 */
112
113#ifdef CONFIG_TOUCHSCREEN_USB_E2I
114static int e2i_init(struct usbtouch_usb *usbtouch)
115{
116 int ret;
fea4d14b 117 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
9e3b2583 118
41e81022 119 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
9e3b2583
FE		 120 0x01, 0x02, 0x0000, 0x0081,
121 NULL, 0, USB_CTRL_SET_TIMEOUT);
122
0a5ebc88 123 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 124 "%s - usb_control_msg - E2I_RESET - bytes|err: %d\n",
125 __func__, ret);
9e3b2583
FE		 126 return ret;
127}
128
129static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
130{
131 int tmp = (pkt[0] << 8) | pkt[1];
132 dev->x = (pkt[2] << 8) | pkt[3];
133 dev->y = (pkt[4] << 8) | pkt[5];
134
135 tmp = tmp - 0xA000;
136 dev->touch = (tmp > 0);
137 dev->press = (tmp > 0 ? tmp : 0);
138
139 return 1;
140}
7f787df1
DT		 141
142static const struct usbtouch_device_info e2i_dev_info = {
143 .min_xc = 0x0,
144 .max_xc = 0x7fff,
145 .min_yc = 0x0,
146 .max_yc = 0x7fff,
147 .rept_size = 6,
148 .init = e2i_init,
149 .read_data = e2i_read_data,
150};
9e3b2583
FE		 151#endif
152
153
1d3e2023
DR		 154/*****************************************************************************
155 * eGalax part
156 */
157
c6f8d706 158#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
1d3e2023 159
62aa366d
DR		 160#ifndef MULTI_PACKET
161#define MULTI_PACKET
162#endif
163
1d3e2023
DR		 164#define EGALAX_PKT_TYPE_MASK 0xFE
165#define EGALAX_PKT_TYPE_REPT 0x80
166#define EGALAX_PKT_TYPE_DIAG 0x0A
167
037a833e
FB		 168static int egalax_init(struct usbtouch_usb *usbtouch)
169{
037a833e 170 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
d04f9393 171 int ret, i;
037a833e
FB		 172
173 /*
174 * An eGalax diagnostic packet kicks the device into using the right
175 * protocol. We send a "check active" packet. The response will be
176 * read later and ignored.
177 */
178
d04f9393 179 u8 *buf __free(kfree) = kmalloc(3, GFP_KERNEL);
037a833e
FB		 180 if (!buf)
181 return -ENOMEM;
182
183 buf[0] = EGALAX_PKT_TYPE_DIAG;
184 buf[1] = 1; /* length */
185 buf[2] = 'A'; /* command - check active */
186
187 for (i = 0; i < 3; i++) {
188 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
189 0,
190 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
191 0, 0, buf, 3,
192 USB_CTRL_SET_TIMEOUT);
037a833e
FB		 193 if (ret != -EPIPE)
194 break;
195 }
196
d04f9393 197 return ret < 0 ? ret : 0;
037a833e
FB		 198}
199
c9d8c2b3 200static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023
DR		 201{
202 if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
203 return 0;
204
c9d8c2b3
DR		 205 dev->x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);
206 dev->y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);
207 dev->touch = pkt[0] & 0x01;
1d3e2023
DR		 208
209 return 1;
1d3e2023
DR		 210}
211
5d892665 212static int egalax_get_pkt_len(unsigned char *buf, int len)
1d3e2023
DR		 213{
214 switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
215 case EGALAX_PKT_TYPE_REPT:
216 return 5;
217
218 case EGALAX_PKT_TYPE_DIAG:
5d892665
DR		 219 if (len < 2)
220 return -1;
221
1d3e2023
DR		 222 return buf[1] + 2;
223 }
224
225 return 0;
226}
7f787df1
DT		 227
228static const struct usbtouch_device_info egalax_dev_info = {
229 .min_xc = 0x0,
230 .max_xc = 0x07ff,
231 .min_yc = 0x0,
232 .max_yc = 0x07ff,
233 .rept_size = 16,
234 .get_pkt_len = egalax_get_pkt_len,
235 .read_data = egalax_read_data,
236 .init = egalax_init,
237};
1d3e2023
DR		 238#endif
239
aa87512f
AV		 240/*****************************************************************************
241 * EasyTouch part
242 */
243
244#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
245
246#ifndef MULTI_PACKET
247#define MULTI_PACKET
248#endif
249
250#define ETOUCH_PKT_TYPE_MASK 0xFE
251#define ETOUCH_PKT_TYPE_REPT 0x80
252#define ETOUCH_PKT_TYPE_REPT2 0xB0
253#define ETOUCH_PKT_TYPE_DIAG 0x0A
254
255static int etouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
256{
257 if ((pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT &&
258 (pkt[0] & ETOUCH_PKT_TYPE_MASK) != ETOUCH_PKT_TYPE_REPT2)
259 return 0;
260
261 dev->x = ((pkt[1] & 0x1F) << 7) | (pkt[2] & 0x7F);
262 dev->y = ((pkt[3] & 0x1F) << 7) | (pkt[4] & 0x7F);
263 dev->touch = pkt[0] & 0x01;
264
265 return 1;
266}
267
268static int etouch_get_pkt_len(unsigned char *buf, int len)
269{
270 switch (buf[0] & ETOUCH_PKT_TYPE_MASK) {
271 case ETOUCH_PKT_TYPE_REPT:
272 case ETOUCH_PKT_TYPE_REPT2:
273 return 5;
274
275 case ETOUCH_PKT_TYPE_DIAG:
276 if (len < 2)
277 return -1;
278
279 return buf[1] + 2;
280 }
281
282 return 0;
283}
7f787df1
DT		 284
285static const struct usbtouch_device_info etouch_dev_info = {
286 .min_xc = 0x0,
287 .max_xc = 0x07ff,
288 .min_yc = 0x0,
289 .max_yc = 0x07ff,
290 .rept_size = 16,
291 .get_pkt_len = etouch_get_pkt_len,
292 .read_data = etouch_read_data,
293};
aa87512f 294#endif
1d3e2023
DR		 295
296/*****************************************************************************
297 * PanJit Part
298 */
c6f8d706 299#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
c9d8c2b3 300static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 301{
c9d8c2b3
DR		 302 dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
303 dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
304 dev->touch = pkt[0] & 0x01;
1d3e2023
DR		 305
306 return 1;
307}
7f787df1
DT		 308
309static const struct usbtouch_device_info panjit_dev_info = {
310 .min_xc = 0x0,
311 .max_xc = 0x0fff,
312 .min_yc = 0x0,
313 .max_yc = 0x0fff,
314 .rept_size = 8,
315 .read_data = panjit_read_data,
316};
1d3e2023
DR		 317#endif
318
319
320/*****************************************************************************
321 * 3M/Microtouch Part
322 */
c6f8d706 323#ifdef CONFIG_TOUCHSCREEN_USB_3M
1d3e2023
DR		 324
325#define MTOUCHUSB_ASYNC_REPORT 1
326#define MTOUCHUSB_RESET 7
327#define MTOUCHUSB_REQ_CTRLLR_ID 10
328
89f84b84
ND		 329#define MTOUCHUSB_REQ_CTRLLR_ID_LEN 16
330
c9d8c2b3 331static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 332{
c9cbf3d3
DS		 333 if (hwcalib_xy) {
334 dev->x = (pkt[4] << 8) | pkt[3];
335 dev->y = 0xffff - ((pkt[6] << 8) | pkt[5]);
336 } else {
337 dev->x = (pkt[8] << 8) | pkt[7];
338 dev->y = (pkt[10] << 8) | pkt[9];
339 }
c9d8c2b3 340 dev->touch = (pkt[2] & 0x40) ? 1 : 0;
1d3e2023
DR		 341
342 return 1;
343}
344
89f84b84
ND		 345struct mtouch_priv {
346 u8 fw_rev_major;
347 u8 fw_rev_minor;
348};
349
89f84b84
ND		 350static int mtouch_get_fw_revision(struct usbtouch_usb *usbtouch)
351{
352 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
353 struct mtouch_priv *priv = usbtouch->priv;
89f84b84
ND		 354 int ret;
355
d04f9393 356 u8 *buf __free(kfree) = kzalloc(MTOUCHUSB_REQ_CTRLLR_ID_LEN, GFP_NOIO);
89f84b84
ND		 357 if (!buf)
358 return -ENOMEM;
359
360 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
361 MTOUCHUSB_REQ_CTRLLR_ID,
362 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
363 0, 0, buf, MTOUCHUSB_REQ_CTRLLR_ID_LEN,
364 USB_CTRL_SET_TIMEOUT);
365 if (ret != MTOUCHUSB_REQ_CTRLLR_ID_LEN) {
366 dev_warn(&usbtouch->interface->dev,
367 "Failed to read FW rev: %d\n", ret);
d04f9393 368 return ret < 0 ? ret : -EIO;
89f84b84
ND		 369 }
370
371 priv->fw_rev_major = buf[3];
372 priv->fw_rev_minor = buf[4];
373
d04f9393 374 return 0;
89f84b84
ND		 375}
376
377static int mtouch_alloc(struct usbtouch_usb *usbtouch)
378{
f81d03d4 379 struct mtouch_priv *priv;
89f84b84 380
f81d03d4
EA		 381 priv = kmalloc(sizeof(*priv), GFP_KERNEL);
382 if (!priv)
89f84b84
ND		 383 return -ENOMEM;
384
f81d03d4 385 usbtouch->priv = priv;
89f84b84
ND		 386 return 0;
387}
388
1d3e2023
DR		 389static int mtouch_init(struct usbtouch_usb *usbtouch)
390{
5d892665 391 int ret, i;
fea4d14b 392 struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
1d3e2023 393
89f84b84
ND		 394 ret = mtouch_get_fw_revision(usbtouch);
395 if (ret)
396 return ret;
397
41e81022 398 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1d3e2023
DR		 399 MTOUCHUSB_RESET,
400 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
401 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
0a5ebc88 402 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 403 "%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d\n",
404 __func__, ret);
1d3e2023
DR		 405 if (ret < 0)
406 return ret;
5d892665
DR		 407 msleep(150);
408
409 for (i = 0; i < 3; i++) {
41e81022 410 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
5d892665
DR		 411 MTOUCHUSB_ASYNC_REPORT,
412 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
413 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
0a5ebc88 414 dev_dbg(&usbtouch->interface->dev,
b741ab9d
GKH		 415 "%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d\n",
416 __func__, ret);
5d892665
DR		 417 if (ret >= 0)
418 break;
419 if (ret != -EPIPE)
420 return ret;
421 }
1d3e2023 422
c9cbf3d3
DS		 423 /* Default min/max xy are the raw values, override if using hw-calib */
424 if (hwcalib_xy) {
425 input_set_abs_params(usbtouch->input, ABS_X, 0, 0xffff, 0, 0);
426 input_set_abs_params(usbtouch->input, ABS_Y, 0, 0xffff, 0, 0);
427 }
428
1d3e2023
DR		 429 return 0;
430}
89f84b84
ND		 431
432static void mtouch_exit(struct usbtouch_usb *usbtouch)
433{
434 struct mtouch_priv *priv = usbtouch->priv;
435
89f84b84
ND		 436 kfree(priv);
437}
7f787df1
DT		 438
439static struct usbtouch_device_info mtouch_dev_info = {
440 .min_xc = 0x0,
441 .max_xc = 0x4000,
442 .min_yc = 0x0,
443 .max_yc = 0x4000,
444 .rept_size = 11,
445 .read_data = mtouch_read_data,
446 .alloc = mtouch_alloc,
447 .init = mtouch_init,
448 .exit = mtouch_exit,
449};
450
451static ssize_t mtouch_firmware_rev_show(struct device *dev,
452 struct device_attribute *attr, char *output)
453{
454 struct usb_interface *intf = to_usb_interface(dev);
455 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
456 struct mtouch_priv *priv = usbtouch->priv;
457
458 return sysfs_emit(output, "%1x.%1x\n",
459 priv->fw_rev_major, priv->fw_rev_minor);
460}
461static DEVICE_ATTR(firmware_rev, 0444, mtouch_firmware_rev_show, NULL);
462
463static struct attribute *mtouch_attrs[] = {
464 &dev_attr_firmware_rev.attr,
465 NULL
466};
467
468static bool mtouch_group_visible(struct kobject *kobj)
469{
470 struct device *dev = kobj_to_dev(kobj);
471 struct usb_interface *intf = to_usb_interface(dev);
472 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
473
474 return usbtouch->type == &mtouch_dev_info;
475}
476
477DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(mtouch);
478
479static const struct attribute_group mtouch_attr_group = {
480 .is_visible = SYSFS_GROUP_VISIBLE(mtouch),
481 .attrs = mtouch_attrs,
482};
1d3e2023
DR		 483#endif
484
485
486/*****************************************************************************
487 * ITM Part
488 */
c6f8d706 489#ifdef CONFIG_TOUCHSCREEN_USB_ITM
c9d8c2b3 490static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1d3e2023 491{
c9d8c2b3
DR		 492 int touch;
493 /*
494 * ITM devices report invalid x/y data if not touched.
495 * if the screen was touched before but is not touched any more
496 * report touch as 0 with the last valid x/y data once. then stop
497 * reporting data until touched again.
498 */
499 dev->press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
500
501 touch = ~pkt[7] & 0x20;
502 if (!touch) {
503 if (dev->touch) {
504 dev->touch = 0;
505 return 1;
506 }
507
508 return 0;
509 }
510
511 dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
512 dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
513 dev->touch = touch;
1d3e2023 514
c9d8c2b3 515 return 1;
1d3e2023 516}
7f787df1
DT		 517
518static const struct usbtouch_device_info itm_dev_info = {
519 .min_xc = 0x0,
520 .max_xc = 0x0fff,
521 .min_yc = 0x0,
522 .max_yc = 0x0fff,
523 .max_press = 0xff,
524 .rept_size = 8,
525 .read_data = itm_read_data,
526};
1d3e2023
DR		 527#endif
528
529
5d892665
DR		 530/*****************************************************************************
531 * eTurboTouch part
532 */
c6f8d706 533#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
62aa366d
DR		 534#ifndef MULTI_PACKET
535#define MULTI_PACKET
536#endif
c9d8c2b3 537static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
5d892665
DR		 538{
539 unsigned int shift;
540
541 /* packets should start with sync */
542 if (!(pkt[0] & 0x80))
543 return 0;
544
545 shift = (6 - (pkt[0] & 0x03));
c9d8c2b3
DR		 546 dev->x = ((pkt[3] << 7) | pkt[4]) >> shift;
547 dev->y = ((pkt[1] << 7) | pkt[2]) >> shift;
548 dev->touch = (pkt[0] & 0x10) ? 1 : 0;
5d892665
DR		 549
550 return 1;
551}
552
553static int eturbo_get_pkt_len(unsigned char *buf, int len)
554{
555 if (buf[0] & 0x80)
556 return 5;
557 if (buf[0] == 0x01)
558 return 3;
559 return 0;
560}
7f787df1
DT		 561
562static const struct usbtouch_device_info eturbo_dev_info = {
563 .min_xc = 0x0,
564 .max_xc = 0x07ff,
565 .min_yc = 0x0,
566 .max_yc = 0x07ff,
567 .rept_size = 8,
568 .get_pkt_len = eturbo_get_pkt_len,
569 .read_data = eturbo_read_data,
570};
5d892665
DR		 571#endif
572
573
574/*****************************************************************************
575 * Gunze part
576 */
c6f8d706 577#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
c9d8c2b3 578static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
5d892665
DR		 579{
580 if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
581 return 0;
582
c9d8c2b3
DR		 583 dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
584 dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
585 dev->touch = pkt[0] & 0x20;
5d892665
DR		 586
587 return 1;
588}
7f787df1
DT		 589
590static const struct usbtouch_device_info gunze_dev_info = {
591 .min_xc = 0x0,
592 .max_xc = 0x0fff,
593 .min_yc = 0x0,
594 .max_yc = 0x0fff,
595 .rept_size = 4,
596 .read_data = gunze_read_data,
597};
5d892665
DR		 598#endif
599
24ced062
HS		 600/*****************************************************************************
601 * DMC TSC-10/25 Part
602 *
603 * Documentation about the controller and it's protocol can be found at
604 * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf
605 * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf
606 */
c6f8d706 607#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
24ced062
HS		 608
609/* supported data rates. currently using 130 */
610#define TSC10_RATE_POINT 0x50
611#define TSC10_RATE_30 0x40
612#define TSC10_RATE_50 0x41
613#define TSC10_RATE_80 0x42
614#define TSC10_RATE_100 0x43
615#define TSC10_RATE_130 0x44
616#define TSC10_RATE_150 0x45
617
618/* commands */
619#define TSC10_CMD_RESET 0x55
620#define TSC10_CMD_RATE 0x05
621#define TSC10_CMD_DATA1 0x01
622
623static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
624{
fea4d14b 625 struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
d04f9393 626 int ret;
24ced062 627
d04f9393 628 u8 *buf __free(kfree) = kmalloc(2, GFP_NOIO);
76d057ce 629 if (!buf)
d04f9393
DT		 630 return -ENOMEM;
631
24ced062
HS		 632 /* reset */
633 buf[0] = buf[1] = 0xFF;
634 ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
d04f9393
DT		 635 TSC10_CMD_RESET,
636 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
637 0, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
24ced062 638 if (ret < 0)
d04f9393
DT		 639 return ret;
640
641 if (buf[0] != 0x06)
642 return -ENODEV;
24ced062 643
96849170
BB		 644 /* TSC-25 data sheet specifies a delay after the RESET command */
645 msleep(150);
646
24ced062
HS		 647 /* set coordinate output rate */
648 buf[0] = buf[1] = 0xFF;
649 ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
d04f9393
DT		 650 TSC10_CMD_RATE,
651 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
652 TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
24ced062 653 if (ret < 0)
d04f9393
DT		 654 return ret;
655
656 if (buf[0] != 0x06 && (buf[0] != 0x15 || buf[1] != 0x01))
657 return -ENODEV;
24ced062
HS		 658
659 /* start sending data */
d04f9393
DT		 660 return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
661 TSC10_CMD_DATA1,
662 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
663 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
24ced062
HS		 664}
665
c9d8c2b3 666static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
24ced062 667{
c9d8c2b3
DR		 668 dev->x = ((pkt[2] & 0x03) << 8) | pkt[1];
669 dev->y = ((pkt[4] & 0x03) << 8) | pkt[3];
670 dev->touch = pkt[0] & 0x01;
24ced062
HS		 671
672 return 1;
673}
7f787df1
DT		 674
675static const struct usbtouch_device_info dmc_tsc10_dev_info = {
676 .min_xc = 0x0,
677 .max_xc = 0x03ff,
678 .min_yc = 0x0,
679 .max_yc = 0x03ff,
680 .rept_size = 5,
681 .init = dmc_tsc10_init,
682 .read_data = dmc_tsc10_read_data,
683};
24ced062
HS		 684#endif
685
686
df561fcd
OZ		 687/*****************************************************************************
688 * IRTOUCH Part
689 */
690#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
691static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
692{
693 dev->x = (pkt[3] << 8) | pkt[2];
694 dev->y = (pkt[5] << 8) | pkt[4];
695 dev->touch = (pkt[1] & 0x03) ? 1 : 0;
696
697 return 1;
698}
7f787df1
DT		 699
700static const struct usbtouch_device_info irtouch_dev_info = {
701 .min_xc = 0x0,
702 .max_xc = 0x0fff,
703 .min_yc = 0x0,
704 .max_yc = 0x0fff,
705 .rept_size = 8,
706 .read_data = irtouch_read_data,
707};
708
709static const struct usbtouch_device_info irtouch_hires_dev_info = {
710 .min_xc = 0x0,
711 .max_xc = 0x7fff,
712 .min_yc = 0x0,
713 .max_yc = 0x7fff,
714 .rept_size = 8,
715 .read_data = irtouch_read_data,
716};
df561fcd
OZ		 717#endif
718
dbe1420b 719/*****************************************************************************
38771bb4 720 * ET&T TC5UH/TC4UM part
dbe1420b 721 */
38771bb4
PŠ		 722#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
723static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
dbe1420b
PŠ		 724{
725 dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
726 dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
727 dev->touch = pkt[0] & 0x01;
728
729 return 1;
730}
7f787df1
DT		 731
732static const struct usbtouch_device_info tc45usb_dev_info = {
733 .min_xc = 0x0,
734 .max_xc = 0x0fff,
735 .min_yc = 0x0,
736 .max_yc = 0x0fff,
737 .rept_size = 5,
738 .read_data = tc45usb_read_data,
739};
dbe1420b 740#endif
df561fcd 741
a14a8401
OZ		 742/*****************************************************************************
743 * IdealTEK URTC1000 Part
744 */
745#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
62aa366d
DR		 746#ifndef MULTI_PACKET
747#define MULTI_PACKET
748#endif
a14a8401
OZ		 749static int idealtek_get_pkt_len(unsigned char *buf, int len)
750{
751 if (buf[0] & 0x80)
752 return 5;
753 if (buf[0] == 0x01)
754 return len;
755 return 0;
756}
757
758static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
759{
760 switch (pkt[0] & 0x98) {
761 case 0x88:
762 /* touch data in IdealTEK mode */
763 dev->x = (pkt[1] << 5) | (pkt[2] >> 2);
764 dev->y = (pkt[3] << 5) | (pkt[4] >> 2);
765 dev->touch = (pkt[0] & 0x40) ? 1 : 0;
766 return 1;
767
768 case 0x98:
769 /* touch data in MT emulation mode */
770 dev->x = (pkt[2] << 5) | (pkt[1] >> 2);
771 dev->y = (pkt[4] << 5) | (pkt[3] >> 2);
772 dev->touch = (pkt[0] & 0x40) ? 1 : 0;
773 return 1;
774
775 default:
776 return 0;
777 }
778}
7f787df1
DT		 779
780static const struct usbtouch_device_info idealtek_dev_info = {
781 .min_xc = 0x0,
782 .max_xc = 0x0fff,
783 .min_yc = 0x0,
784 .max_yc = 0x0fff,
785 .rept_size = 8,
786 .get_pkt_len = idealtek_get_pkt_len,
787 .read_data = idealtek_read_data,
788};
a14a8401
OZ		 789#endif
790
9d5657db
IF		 791/*****************************************************************************
792 * General Touch Part
793 */
794#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
795static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
796{
eb083ba2
RY		 797 dev->x = (pkt[2] << 8) | pkt[1];
798 dev->y = (pkt[4] << 8) | pkt[3];
9d5657db
IF		 799 dev->press = pkt[5] & 0xff;
800 dev->touch = pkt[0] & 0x01;
801
802 return 1;
803}
7f787df1
DT		 804
805static const struct usbtouch_device_info general_touch_dev_info = {
806 .min_xc = 0x0,
807 .max_xc = 0x7fff,
808 .min_yc = 0x0,
809 .max_yc = 0x7fff,
810 .rept_size = 7,
811 .read_data = general_touch_read_data,
812};
9d5657db 813#endif
a14a8401 814
14e40206
JJ		 815/*****************************************************************************
816 * GoTop Part
817 */
818#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
819static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
820{
821 dev->x = ((pkt[1] & 0x38) << 4) | pkt[2];
822 dev->y = ((pkt[1] & 0x07) << 7) | pkt[3];
823 dev->touch = pkt[0] & 0x01;
f7370699
JP		 824
825 return 1;
826}
7f787df1
DT		 827
828static const struct usbtouch_device_info gotop_dev_info = {
829 .min_xc = 0x0,
830 .max_xc = 0x03ff,
831 .min_yc = 0x0,
832 .max_yc = 0x03ff,
833 .rept_size = 4,
834 .read_data = gotop_read_data,
835};
f7370699
JP		 836#endif
837
838/*****************************************************************************
839 * JASTEC Part
840 */
841#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
842static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
843{
844 dev->x = ((pkt[0] & 0x3f) << 6) | (pkt[2] & 0x3f);
845 dev->y = ((pkt[1] & 0x3f) << 6) | (pkt[3] & 0x3f);
846 dev->touch = (pkt[0] & 0x40) >> 6;
847
14e40206
JJ		 848 return 1;
849}
7f787df1
DT		 850
851static const struct usbtouch_device_info jastec_dev_info = {
852 .min_xc = 0x0,
853 .max_xc = 0x0fff,
854 .min_yc = 0x0,
855 .max_yc = 0x0fff,
856 .rept_size = 4,
857 .read_data = jastec_read_data,
858};
14e40206
JJ		 859#endif
860
2330ed18
DS		 861/*****************************************************************************
862 * Zytronic Part
863 */
864#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
865static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
866{
0a5ebc88 867 struct usb_interface *intf = dev->interface;
b741ab9d 868
2330ed18
DS		 869 switch (pkt[0]) {
870 case 0x3A: /* command response */
0a5ebc88 871 dev_dbg(&intf->dev, "%s: Command response %d\n", __func__, pkt[1]);
2330ed18
DS		 872 break;
873
874 case 0xC0: /* down */
875 dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
876 dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
877 dev->touch = 1;
0a5ebc88 878 dev_dbg(&intf->dev, "%s: down %d,%d\n", __func__, dev->x, dev->y);
2330ed18
DS		 879 return 1;
880
881 case 0x80: /* up */
882 dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
883 dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
884 dev->touch = 0;
0a5ebc88 885 dev_dbg(&intf->dev, "%s: up %d,%d\n", __func__, dev->x, dev->y);
2330ed18
DS		 886 return 1;
887
888 default:
0a5ebc88 889 dev_dbg(&intf->dev, "%s: Unknown return %d\n", __func__, pkt[0]);
2330ed18
DS		 890 break;
891 }
892
893 return 0;
894}
7f787df1
DT		 895
896static const struct usbtouch_device_info zytronic_dev_info = {
897 .min_xc = 0x0,
898 .max_xc = 0x03ff,
899 .min_yc = 0x0,
900 .max_yc = 0x03ff,
901 .rept_size = 5,
902 .read_data = zytronic_read_data,
903 .irq_always = true,
904};
2330ed18 905#endif
14e40206 906
5197424c
OZ		 907/*****************************************************************************
908 * NEXIO Part
909 */
910#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
911
912#define NEXIO_TIMEOUT 5000
913#define NEXIO_BUFSIZE 1024
914#define NEXIO_THRESHOLD 50
915
916struct nexio_priv {
917 struct urb *ack;
918 unsigned char *ack_buf;
919};
920
921struct nexio_touch_packet {
922 u8 flags; /* 0xe1 = touch, 0xe1 = release */
923 __be16 data_len; /* total bytes of touch data */
924 __be16 x_len; /* bytes for X axis */
925 __be16 y_len; /* bytes for Y axis */
926 u8 data[];
927} __attribute__ ((packed));
928
929static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 };
930static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
931
932static void nexio_ack_complete(struct urb *urb)
933{
934}
935
a8aef622
ON		 936static int nexio_alloc(struct usbtouch_usb *usbtouch)
937{
938 struct nexio_priv *priv;
939 int ret = -ENOMEM;
940
f81d03d4
EA		 941 priv = kmalloc(sizeof(*priv), GFP_KERNEL);
942 if (!priv)
a8aef622
ON		 943 goto out_buf;
944
f81d03d4 945 usbtouch->priv = priv;
a8aef622
ON		 946 priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt),
947 GFP_KERNEL);
948 if (!priv->ack_buf)
949 goto err_priv;
950
951 priv->ack = usb_alloc_urb(0, GFP_KERNEL);
952 if (!priv->ack) {
0a5ebc88 953 dev_dbg(&usbtouch->interface->dev,
b741ab9d 954 "%s - usb_alloc_urb failed: usbtouch->ack\n", __func__);
a8aef622
ON		 955 goto err_ack_buf;
956 }
957
958 return 0;
959
960err_ack_buf:
961 kfree(priv->ack_buf);
962err_priv:
963 kfree(priv);
964out_buf:
965 return ret;
966}
967
5197424c
OZ		 968static int nexio_init(struct usbtouch_usb *usbtouch)
969{
970 struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
971 struct usb_host_interface *interface = usbtouch->interface->cur_altsetting;
a8aef622 972 struct nexio_priv *priv = usbtouch->priv;
5197424c
OZ		 973 int ret = -ENOMEM;
974 int actual_len, i;
5197424c
OZ		 975 char *firmware_ver = NULL, *device_name = NULL;
976 int input_ep = 0, output_ep = 0;
977
978 /* find first input and output endpoint */
979 for (i = 0; i < interface->desc.bNumEndpoints; i++) {
980 if (!input_ep &&
981 usb_endpoint_dir_in(&interface->endpoint[i].desc))
982 input_ep = interface->endpoint[i].desc.bEndpointAddress;
983 if (!output_ep &&
984 usb_endpoint_dir_out(&interface->endpoint[i].desc))
985 output_ep = interface->endpoint[i].desc.bEndpointAddress;
986 }
987 if (!input_ep || !output_ep)
988 return -ENXIO;
989
d04f9393 990 u8 *buf __free(kfree) = kmalloc(NEXIO_BUFSIZE, GFP_NOIO);
5197424c 991 if (!buf)
d04f9393 992 return -ENOMEM;
5197424c
OZ		 993
994 /* two empty reads */
995 for (i = 0; i < 2; i++) {
996 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
997 buf, NEXIO_BUFSIZE, &actual_len,
998 NEXIO_TIMEOUT);
999 if (ret < 0)
d04f9393 1000 return ret;
5197424c
OZ		 1001 }
1002
1003 /* send init command */
1004 memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt));
1005 ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep),
1006 buf, sizeof(nexio_init_pkt), &actual_len,
1007 NEXIO_TIMEOUT);
1008 if (ret < 0)
d04f9393 1009 return ret;
5197424c
OZ		 1010
1011 /* read replies */
1012 for (i = 0; i < 3; i++) {
1013 memset(buf, 0, NEXIO_BUFSIZE);
1014 ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
1015 buf, NEXIO_BUFSIZE, &actual_len,
1016 NEXIO_TIMEOUT);
1017 if (ret < 0 || actual_len < 1 || buf[1] != actual_len)
1018 continue;
1019 switch (buf[0]) {
1020 case 0x83: /* firmware version */
1021 if (!firmware_ver)
a8aef622 1022 firmware_ver = kstrdup(&buf[2], GFP_NOIO);
5197424c
OZ		 1023 break;
1024 case 0x84: /* device name */
1025 if (!device_name)
a8aef622 1026 device_name = kstrdup(&buf[2], GFP_NOIO);
5197424c
OZ		 1027 break;
1028 }
1029 }
1030
1031 printk(KERN_INFO "Nexio device: %s, firmware version: %s\n",
1032 device_name, firmware_ver);
1033
1034 kfree(firmware_ver);
1035 kfree(device_name);
1036
5197424c
OZ		 1037 usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep),
1038 priv->ack_buf, sizeof(nexio_ack_pkt),
1039 nexio_ack_complete, usbtouch);
5197424c 1040
d04f9393 1041 return 0;
5197424c
OZ		 1042}
1043
1044static void nexio_exit(struct usbtouch_usb *usbtouch)
1045{
1046 struct nexio_priv *priv = usbtouch->priv;
1047
1048 usb_kill_urb(priv->ack);
1049 usb_free_urb(priv->ack);
1050 kfree(priv->ack_buf);
1051 kfree(priv);
1052}
1053
1054static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
1055{
33f93726 1056 struct device *dev = &usbtouch->interface->dev;
5197424c
OZ		 1057 struct nexio_touch_packet *packet = (void *) pkt;
1058 struct nexio_priv *priv = usbtouch->priv;
4aa5bbec
DT		 1059 unsigned int data_len = be16_to_cpu(packet->data_len);
1060 unsigned int x_len = be16_to_cpu(packet->x_len);
1061 unsigned int y_len = be16_to_cpu(packet->y_len);
1062 int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
5197424c
OZ		 1063
1064 /* got touch data? */
1065 if ((pkt[0] & 0xe0) != 0xe0)
1066 return 0;
1067
4aa5bbec
DT		 1068 if (data_len > 0xff)
1069 data_len -= 0x100;
1070 if (x_len > 0xff)
1071 x_len -= 0x80;
388bbcad 1072
5197424c
OZ		 1073 /* send ACK */
1074 ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
33f93726
LJ		 1075 if (ret)
1076 dev_warn(dev, "Failed to submit ACK URB: %d\n", ret);
5197424c 1077
830f06c0 1078 if (!input_abs_get_max(usbtouch->input, ABS_X)) {
4aa5bbec 1079 input_set_abs_params(usbtouch->input, ABS_X,
830f06c0 1080 0, 2 * x_len, 0, 0);
4aa5bbec 1081 input_set_abs_params(usbtouch->input, ABS_Y,
830f06c0 1082 0, 2 * y_len, 0, 0);
5197424c
OZ		 1083 }
1084 /*
1085 * The device reports state of IR sensors on X and Y axes.
1086 * Each byte represents "darkness" percentage (0-100) of one element.
1087 * 17" touchscreen reports only 64 x 52 bytes so the resolution is low.
1088 * This also means that there's a limited multi-touch capability but
1089 * it's disabled (and untested) here as there's no X driver for that.
1090 */
1091 begin_x = end_x = begin_y = end_y = -1;
4aa5bbec 1092 for (x = 0; x < x_len; x++) {
5197424c
OZ		 1093 if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) {
1094 begin_x = x;
1095 continue;
1096 }
1097 if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) {
1098 end_x = x - 1;
4aa5bbec 1099 for (y = x_len; y < data_len; y++) {
5197424c 1100 if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) {
4aa5bbec 1101 begin_y = y - x_len;
5197424c
OZ		 1102 continue;
1103 }
1104 if (end_y == -1 &&
1105 begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) {
4aa5bbec 1106 end_y = y - 1 - x_len;
5197424c
OZ		 1107 w = end_x - begin_x;
1108 h = end_y - begin_y;
1109#if 0
1110 /* multi-touch */
1111 input_report_abs(usbtouch->input,
1112 ABS_MT_TOUCH_MAJOR, max(w,h));
1113 input_report_abs(usbtouch->input,
1114 ABS_MT_TOUCH_MINOR, min(x,h));
1115 input_report_abs(usbtouch->input,
1116 ABS_MT_POSITION_X, 2*begin_x+w);
1117 input_report_abs(usbtouch->input,
1118 ABS_MT_POSITION_Y, 2*begin_y+h);
1119 input_report_abs(usbtouch->input,
1120 ABS_MT_ORIENTATION, w > h);
1121 input_mt_sync(usbtouch->input);
1122#endif
1123 /* single touch */
1124 usbtouch->x = 2 * begin_x + w;
1125 usbtouch->y = 2 * begin_y + h;
1126 usbtouch->touch = packet->flags & 0x01;
1127 begin_y = end_y = -1;
1128 return 1;
1129 }
1130 }
1131 begin_x = end_x = -1;
1132 }
1133
1134 }
1135 return 0;
1136}
7f787df1
DT		 1137
1138static const struct usbtouch_device_info nexio_dev_info = {
1139 .rept_size = 1024,
1140 .irq_always = true,
1141 .read_data = nexio_read_data,
1142 .alloc = nexio_alloc,
1143 .init = nexio_init,
1144 .exit = nexio_exit,
1145};
5197424c
OZ		 1146#endif
1147
1148
d2cc817a
MG		 1149/*****************************************************************************
1150 * ELO part
1151 */
1152
1153#ifdef CONFIG_TOUCHSCREEN_USB_ELO
1154
1155static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
1156{
1157 dev->x = (pkt[3] << 8) | pkt[2];
1158 dev->y = (pkt[5] << 8) | pkt[4];
1159 dev->touch = pkt[6] > 0;
1160 dev->press = pkt[6];
1161
1162 return 1;
1163}
1d3e2023 1164
7f787df1
DT		 1165static const struct usbtouch_device_info elo_dev_info = {
1166 .min_xc = 0x0,
1167 .max_xc = 0x0fff,
1168 .min_yc = 0x0,
1169 .max_yc = 0x0fff,
1170 .max_press = 0xff,
1171 .rept_size = 8,
1172 .read_data = elo_read_data,
1d3e2023 1173};
7f787df1 1174#endif
1d3e2023
DR		 1175
1176
1177/*****************************************************************************
1178 * Generic Part
1179 */
1180static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
7d12e780 1181 unsigned char *pkt, int len)
1d3e2023 1182{
830f06c0 1183 const struct usbtouch_device_info *type = usbtouch->type;
1d3e2023 1184
c9d8c2b3 1185 if (!type->read_data(usbtouch, pkt))
830f06c0 1186 return;
1d3e2023 1187
c9d8c2b3 1188 input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch);
1d3e2023
DR		 1189
1190 if (swap_xy) {
c9d8c2b3
DR		 1191 input_report_abs(usbtouch->input, ABS_X, usbtouch->y);
1192 input_report_abs(usbtouch->input, ABS_Y, usbtouch->x);
1d3e2023 1193 } else {
c9d8c2b3
DR		 1194 input_report_abs(usbtouch->input, ABS_X, usbtouch->x);
1195 input_report_abs(usbtouch->input, ABS_Y, usbtouch->y);
1d3e2023
DR		 1196 }
1197 if (type->max_press)
c9d8c2b3 1198 input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press);
1d3e2023
DR		 1199 input_sync(usbtouch->input);
1200}
1201
1202
5d892665
DR		 1203#ifdef MULTI_PACKET
1204static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
5d892665
DR		 1205 unsigned char *pkt, int len)
1206{
1207 unsigned char *buffer;
1208 int pkt_len, pos, buf_len, tmp;
1209
1210 /* process buffer */
1211 if (unlikely(usbtouch->buf_len)) {
1212 /* try to get size */
1213 pkt_len = usbtouch->type->get_pkt_len(
1214 usbtouch->buffer, usbtouch->buf_len);
1215
1216 /* drop? */
1217 if (unlikely(!pkt_len))
1218 goto out_flush_buf;
1219
1220 /* need to append -pkt_len bytes before able to get size */
1221 if (unlikely(pkt_len < 0)) {
1222 int append = -pkt_len;
1223 if (unlikely(append > len))
1224 append = len;
1225 if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
1226 goto out_flush_buf;
1227 memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
1228 usbtouch->buf_len += append;
1229
1230 pkt_len = usbtouch->type->get_pkt_len(
1231 usbtouch->buffer, usbtouch->buf_len);
1232 if (pkt_len < 0)
1233 return;
1234 }
1235
1236 /* append */
1237 tmp = pkt_len - usbtouch->buf_len;
1238 if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
1239 goto out_flush_buf;
1240 memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
7d12e780 1241 usbtouch_process_pkt(usbtouch, usbtouch->buffer, pkt_len);
5d892665
DR		 1242
1243 buffer = pkt + tmp;
1244 buf_len = len - tmp;
1245 } else {
1246 buffer = pkt;
1247 buf_len = len;
1248 }
1249
1250 /* loop over the received packet, process */
1251 pos = 0;
1252 while (pos < buf_len) {
1253 /* get packet len */
62aa366d
DR		 1254 pkt_len = usbtouch->type->get_pkt_len(buffer + pos,
1255 buf_len - pos);
5d892665 1256
62aa366d
DR		 1257 /* unknown packet: skip one byte */
1258 if (unlikely(!pkt_len)) {
1259 pos++;
1260 continue;
1261 }
5d892665
DR		 1262
1263 /* full packet: process */
1264 if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
7d12e780 1265 usbtouch_process_pkt(usbtouch, buffer + pos, pkt_len);
5d892665
DR		 1266 } else {
1267 /* incomplete packet: save in buffer */
1268 memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
1269 usbtouch->buf_len = buf_len - pos;
1270 return;
1271 }
1272 pos += pkt_len;
1273 }
1274
1275out_flush_buf:
1276 usbtouch->buf_len = 0;
1277 return;
1278}
fbb1c922
DT		 1279#else
1280static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
1281 unsigned char *pkt, int len)
1282{
1283 dev_WARN_ONCE(&usbtouch->interface->dev, 1,
1284 "Protocol has ->get_pkt_len() without #define MULTI_PACKET");
1285}
5d892665
DR		 1286#endif
1287
7d12e780 1288static void usbtouch_irq(struct urb *urb)
1d3e2023
DR		 1289{
1290 struct usbtouch_usb *usbtouch = urb->context;
0a5ebc88 1291 struct device *dev = &usbtouch->interface->dev;
1d3e2023
DR		 1292 int retval;
1293
1294 switch (urb->status) {
1295 case 0:
1296 /* success */
1297 break;
38e2bfc9 1298 case -ETIME:
1d3e2023 1299 /* this urb is timing out */
b741ab9d
GKH		 1300 dev_dbg(dev,
1301 "%s - urb timed out - was the device unplugged?\n",
1302 __func__);
1d3e2023
DR		 1303 return;
1304 case -ECONNRESET:
1305 case -ENOENT:
1306 case -ESHUTDOWN:
5197424c 1307 case -EPIPE:
1d3e2023 1308 /* this urb is terminated, clean up */
b741ab9d
GKH		 1309 dev_dbg(dev, "%s - urb shutting down with status: %d\n",
1310 __func__, urb->status);
1d3e2023
DR		 1311 return;
1312 default:
b741ab9d
GKH		 1313 dev_dbg(dev, "%s - nonzero urb status received: %d\n",
1314 __func__, urb->status);
1d3e2023
DR		 1315 goto exit;
1316 }
1317
fbb1c922 1318 usbtouch->process_pkt(usbtouch, usbtouch->data, urb->actual_length);
1d3e2023
DR		 1319
1320exit:
5d9efc59 1321 usb_mark_last_busy(interface_to_usbdev(usbtouch->interface));
1d3e2023
DR		 1322 retval = usb_submit_urb(urb, GFP_ATOMIC);
1323 if (retval)
0a5ebc88 1324 dev_err(dev, "%s - usb_submit_urb failed with result: %d\n",
e27ad0fe 1325 __func__, retval);
1d3e2023
DR		 1326}
1327
f784adb6
DT		 1328static int usbtouch_start_io(struct usbtouch_usb *usbtouch)
1329{
1330 guard(mutex)(&usbtouch->pm_mutex);
1331
1332 if (!usbtouch->type->irq_always)
1333 if (usb_submit_urb(usbtouch->irq, GFP_KERNEL))
1334 return -EIO;
1335
1336 usbtouch->interface->needs_remote_wakeup = 1;
1337 usbtouch->is_open = true;
1338
1339 return 0;
1340}
1341
1d3e2023
DR		 1342static int usbtouch_open(struct input_dev *input)
1343{
7791bdae 1344 struct usbtouch_usb *usbtouch = input_get_drvdata(input);
5d9efc59 1345 int r;
1d3e2023 1346
fea4d14b 1347 usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface);
1d3e2023 1348
5d9efc59 1349 r = usb_autopm_get_interface(usbtouch->interface) ? -EIO : 0;
f784adb6
DT		 1350 if (r)
1351 return r;
1352
1353 r = usbtouch_start_io(usbtouch);
1d3e2023 1354
5d9efc59 1355 usb_autopm_put_interface(usbtouch->interface);
5d9efc59 1356 return r;
1d3e2023
DR		 1357}
1358
1359static void usbtouch_close(struct input_dev *input)
1360{
7791bdae 1361 struct usbtouch_usb *usbtouch = input_get_drvdata(input);
5d9efc59 1362 int r;
1d3e2023 1363
f784adb6
DT		 1364 scoped_guard(mutex, &usbtouch->pm_mutex) {
1365 if (!usbtouch->type->irq_always)
1366 usb_kill_urb(usbtouch->irq);
1367 usbtouch->is_open = false;
1368 }
12e510db 1369
5d9efc59
ON		 1370 r = usb_autopm_get_interface(usbtouch->interface);
1371 usbtouch->interface->needs_remote_wakeup = 0;
1372 if (!r)
1373 usb_autopm_put_interface(usbtouch->interface);
1d3e2023
DR		 1374}
1375
f784adb6 1376static int usbtouch_suspend(struct usb_interface *intf, pm_message_t message)
ed4299e1
ON		 1377{
1378 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1379
1380 usb_kill_urb(usbtouch->irq);
1381
1382 return 0;
1383}
1384
1385static int usbtouch_resume(struct usb_interface *intf)
1386{
1387 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
ed4299e1 1388
f784adb6
DT		 1389 guard(mutex)(&usbtouch->pm_mutex);
1390
85f46fbf 1391 if (usbtouch->is_open || usbtouch->type->irq_always)
f784adb6 1392 return usb_submit_urb(usbtouch->irq, GFP_NOIO);
ed4299e1 1393
f784adb6 1394 return 0;
ed4299e1 1395}
1d3e2023 1396
a8aef622
ON		 1397static int usbtouch_reset_resume(struct usb_interface *intf)
1398{
1399 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
f784adb6 1400 int err;
a8aef622
ON		 1401
1402 /* reinit the device */
1403 if (usbtouch->type->init) {
1404 err = usbtouch->type->init(usbtouch);
1405 if (err) {
0a5ebc88 1406 dev_dbg(&intf->dev,
b741ab9d
GKH		 1407 "%s - type->init() failed, err: %d\n",
1408 __func__, err);
a8aef622
ON		 1409 return err;
1410 }
1411 }
1412
1413 /* restart IO if needed */
f784adb6
DT		 1414 guard(mutex)(&usbtouch->pm_mutex);
1415
85f46fbf 1416 if (usbtouch->is_open)
f784adb6 1417 return usb_submit_urb(usbtouch->irq, GFP_NOIO);
a8aef622 1418
f784adb6 1419 return 0;
a8aef622
ON		 1420}
1421
1d3e2023
DR		 1422static void usbtouch_free_buffers(struct usb_device *udev,
1423 struct usbtouch_usb *usbtouch)
1424{
4ef38351 1425 usb_free_coherent(udev, usbtouch->data_size,
997ea58e 1426 usbtouch->data, usbtouch->data_dma);
1d3e2023
DR		 1427 kfree(usbtouch->buffer);
1428}
1429
f4a5e359
OZ		 1430static struct usb_endpoint_descriptor *
1431usbtouch_get_input_endpoint(struct usb_host_interface *interface)
1432{
1433 int i;
1434
1435 for (i = 0; i < interface->desc.bNumEndpoints; i++)
1436 if (usb_endpoint_dir_in(&interface->endpoint[i].desc))
1437 return &interface->endpoint[i].desc;
1438
1439 return NULL;
1440}
1d3e2023
DR		 1441
1442static int usbtouch_probe(struct usb_interface *intf,
1443 const struct usb_device_id *id)
1444{
1445 struct usbtouch_usb *usbtouch;
1446 struct input_dev *input_dev;
1d3e2023
DR		 1447 struct usb_endpoint_descriptor *endpoint;
1448 struct usb_device *udev = interface_to_usbdev(intf);
830f06c0 1449 const struct usbtouch_device_info *type;
5d892665 1450 int err = -ENOMEM;
ec42d448
DR		 1451
1452 /* some devices are ignored */
7f787df1
DT		 1453 type = (const struct usbtouch_device_info *)id->driver_info;
1454 if (!type)
039d4ed3
JH		 1455 return -ENODEV;
1456
f4a5e359
OZ		 1457 endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting);
1458 if (!endpoint)
1459 return -ENXIO;
1d3e2023 1460
f81d03d4 1461 usbtouch = kzalloc(sizeof(*usbtouch), GFP_KERNEL);
1d3e2023
DR		 1462 input_dev = input_allocate_device();
1463 if (!usbtouch || !input_dev)
1464 goto out_free;
1465
b55d996f 1466 mutex_init(&usbtouch->pm_mutex);
1d3e2023 1467 usbtouch->type = type;
1d3e2023 1468
4ef38351
CE		 1469 usbtouch->data_size = type->rept_size;
1470 if (type->get_pkt_len) {
1471 /*
1472 * When dealing with variable-length packets we should
1473 * not request more than wMaxPacketSize bytes at once
1474 * as we do not know if there is more data coming or
1475 * we filled exactly wMaxPacketSize bytes and there is
1476 * nothing else.
1477 */
1478 usbtouch->data_size = min(usbtouch->data_size,
1479 usb_endpoint_maxp(endpoint));
1480 }
1481
1482 usbtouch->data = usb_alloc_coherent(udev, usbtouch->data_size,
997ea58e 1483 GFP_KERNEL, &usbtouch->data_dma);
1d3e2023
DR		 1484 if (!usbtouch->data)
1485 goto out_free;
1486
62aa366d 1487 if (type->get_pkt_len) {
1d3e2023
DR		 1488 usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);
1489 if (!usbtouch->buffer)
1490 goto out_free_buffers;
fbb1c922
DT		 1491 usbtouch->process_pkt = usbtouch_process_multi;
1492 } else {
1493 usbtouch->process_pkt = usbtouch_process_pkt;
1d3e2023
DR		 1494 }
1495
1496 usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
1497 if (!usbtouch->irq) {
b741ab9d
GKH		 1498 dev_dbg(&intf->dev,
1499 "%s - usb_alloc_urb failed: usbtouch->irq\n", __func__);
1d3e2023
DR		 1500 goto out_free_buffers;
1501 }
1502
fea4d14b 1503 usbtouch->interface = intf;
1d3e2023
DR		 1504 usbtouch->input = input_dev;
1505
1506 if (udev->manufacturer)
a9f08ad7 1507 strscpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));
1d3e2023
DR		 1508
1509 if (udev->product) {
1510 if (udev->manufacturer)
1511 strlcat(usbtouch->name, " ", sizeof(usbtouch->name));
1512 strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));
1513 }
1514
1515 if (!strlen(usbtouch->name))
1516 snprintf(usbtouch->name, sizeof(usbtouch->name),
1517 "USB Touchscreen %04x:%04x",
1518 le16_to_cpu(udev->descriptor.idVendor),
1519 le16_to_cpu(udev->descriptor.idProduct));
1520
1521 usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
7b6dff98 1522 strlcat(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
1d3e2023
DR		 1523
1524 input_dev->name = usbtouch->name;
1525 input_dev->phys = usbtouch->phys;
1526 usb_to_input_id(udev, &input_dev->id);
c0f82d57 1527 input_dev->dev.parent = &intf->dev;
7791bdae
DT		 1528
1529 input_set_drvdata(input_dev, usbtouch);
1530
1d3e2023
DR		 1531 input_dev->open = usbtouch_open;
1532 input_dev->close = usbtouch_close;
1533
7b19ada2
JS		 1534 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
1535 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
1d3e2023
DR		 1536 input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);
1537 input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);
1538 if (type->max_press)
1539 input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
1540 type->max_press, 0, 0);
1541
5197424c
OZ		 1542 if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT)
1543 usb_fill_int_urb(usbtouch->irq, udev,
fea4d14b 1544 usb_rcvintpipe(udev, endpoint->bEndpointAddress),
4ef38351 1545 usbtouch->data, usbtouch->data_size,
1d3e2023 1546 usbtouch_irq, usbtouch, endpoint->bInterval);
5197424c
OZ		 1547 else
1548 usb_fill_bulk_urb(usbtouch->irq, udev,
1549 usb_rcvbulkpipe(udev, endpoint->bEndpointAddress),
4ef38351 1550 usbtouch->data, usbtouch->data_size,
5197424c 1551 usbtouch_irq, usbtouch);
1d3e2023 1552
fea4d14b 1553 usbtouch->irq->dev = udev;
1d3e2023
DR		 1554 usbtouch->irq->transfer_dma = usbtouch->data_dma;
1555 usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1556
a8aef622
ON		 1557 /* device specific allocations */
1558 if (type->alloc) {
1559 err = type->alloc(usbtouch);
1560 if (err) {
b741ab9d
GKH		 1561 dev_dbg(&intf->dev,
1562 "%s - type->alloc() failed, err: %d\n",
1563 __func__, err);
a8aef622
ON		 1564 goto out_free_urb;
1565 }
1566 }
1567
1568 /* device specific initialisation*/
1d3e2023
DR		 1569 if (type->init) {
1570 err = type->init(usbtouch);
1571 if (err) {
b741ab9d
GKH		 1572 dev_dbg(&intf->dev,
1573 "%s - type->init() failed, err: %d\n",
1574 __func__, err);
a8aef622 1575 goto out_do_exit;
1d3e2023
DR		 1576 }
1577 }
1578
1579 err = input_register_device(usbtouch->input);
1580 if (err) {
b741ab9d
GKH		 1581 dev_dbg(&intf->dev,
1582 "%s - input_register_device failed, err: %d\n",
1583 __func__, err);
5197424c 1584 goto out_do_exit;
1d3e2023
DR		 1585 }
1586
1587 usb_set_intfdata(intf, usbtouch);
1588
1e87a430 1589 if (usbtouch->type->irq_always) {
5d9efc59
ON		 1590 /* this can't fail */
1591 usb_autopm_get_interface(intf);
1e87a430
OZ		 1592 err = usb_submit_urb(usbtouch->irq, GFP_KERNEL);
1593 if (err) {
5d9efc59 1594 usb_autopm_put_interface(intf);
0a5ebc88 1595 dev_err(&intf->dev,
e27ad0fe
GKH		 1596 "%s - usb_submit_urb failed with result: %d\n",
1597 __func__, err);
1e87a430
OZ		 1598 goto out_unregister_input;
1599 }
1600 }
2330ed18 1601
1d3e2023
DR		 1602 return 0;
1603
1e87a430
OZ		 1604out_unregister_input:
1605 input_unregister_device(input_dev);
1606 input_dev = NULL;
5197424c
OZ		 1607out_do_exit:
1608 if (type->exit)
1609 type->exit(usbtouch);
1e87a430
OZ		 1610out_free_urb:
1611 usb_free_urb(usbtouch->irq);
1d3e2023
DR		 1612out_free_buffers:
1613 usbtouch_free_buffers(udev, usbtouch);
1614out_free:
1615 input_free_device(input_dev);
1616 kfree(usbtouch);
5d892665 1617 return err;
1d3e2023
DR		 1618}
1619
1620static void usbtouch_disconnect(struct usb_interface *intf)
1621{
1622 struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
1623
1d3e2023
DR		 1624 if (!usbtouch)
1625 return;
1626
0a5ebc88 1627 dev_dbg(&intf->dev,
b741ab9d
GKH		 1628 "%s - usbtouch is initialized, cleaning up\n", __func__);
1629
1d3e2023 1630 usb_set_intfdata(intf, NULL);
722232bc 1631 /* this will stop IO via close */
1d3e2023
DR		 1632 input_unregister_device(usbtouch->input);
1633 usb_free_urb(usbtouch->irq);
5197424c
OZ		 1634 if (usbtouch->type->exit)
1635 usbtouch->type->exit(usbtouch);
1d3e2023
DR		 1636 usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
1637 kfree(usbtouch);
1638}
1639
6797e19d
DT		 1640static const struct attribute_group *usbtouch_groups[] = {
1641#ifdef CONFIG_TOUCHSCREEN_USB_3M
1642 &mtouch_attr_group,
1643#endif
1644 NULL
1645};
1646
ca95a47e
DT		 1647static const struct usb_device_id usbtouch_devices[] = {
1648#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
1649 /* ignore the HID capable devices, handled by usbhid */
7f787df1
DT		 1650 { USB_DEVICE_INTERFACE_CLASS(0x0eef, 0x0001, USB_INTERFACE_CLASS_HID),
1651 .driver_info = 0 },
1652 { USB_DEVICE_INTERFACE_CLASS(0x0eef, 0x0002, USB_INTERFACE_CLASS_HID),
1653 .driver_info = 0 },
ca95a47e
DT		 1654
1655 /* normal device IDs */
7f787df1
DT		 1656 { USB_DEVICE(0x3823, 0x0001),
1657 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1658 { USB_DEVICE(0x3823, 0x0002),
1659 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1660 { USB_DEVICE(0x0123, 0x0001),
1661 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1662 { USB_DEVICE(0x0eef, 0x0001),
1663 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1664 { USB_DEVICE(0x0eef, 0x0002),
1665 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1666 { USB_DEVICE(0x1234, 0x0001),
1667 .driver_info = (kernel_ulong_t)&egalax_dev_info },
1668 { USB_DEVICE(0x1234, 0x0002),
1669 .driver_info = (kernel_ulong_t)&egalax_dev_info },
ca95a47e
DT		 1670#endif
1671
1672#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
7f787df1
DT		 1673 { USB_DEVICE(0x134c, 0x0001),
1674 .driver_info = (kernel_ulong_t)&panjit_dev_info },
1675 { USB_DEVICE(0x134c, 0x0002),
1676 .driver_info = (kernel_ulong_t)&panjit_dev_info },
1677 { USB_DEVICE(0x134c, 0x0003),
1678 .driver_info = (kernel_ulong_t)&panjit_dev_info },
1679 { USB_DEVICE(0x134c, 0x0004),
1680 .driver_info = (kernel_ulong_t)&panjit_dev_info },
ca95a47e
DT		 1681#endif
1682
1683#ifdef CONFIG_TOUCHSCREEN_USB_3M
7f787df1
DT		 1684 { USB_DEVICE(0x0596, 0x0001),
1685 .driver_info = (kernel_ulong_t)&mtouch_dev_info },
ca95a47e
DT		 1686#endif
1687
1688#ifdef CONFIG_TOUCHSCREEN_USB_ITM
7f787df1
DT		 1689 { USB_DEVICE(0x0403, 0xf9e9),
1690 .driver_info = (kernel_ulong_t)&itm_dev_info },
1691 { USB_DEVICE(0x16e3, 0xf9e9),
1692 .driver_info = (kernel_ulong_t)&itm_dev_info },
ca95a47e
DT		 1693#endif
1694
1695#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
7f787df1
DT		 1696 { USB_DEVICE(0x1234, 0x5678),
1697 .driver_info = (kernel_ulong_t)&eturbo_dev_info },
ca95a47e
DT		 1698#endif
1699
1700#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
7f787df1
DT		 1701 { USB_DEVICE(0x0637, 0x0001),
1702 .driver_info = (kernel_ulong_t)&gunze_dev_info },
ca95a47e
DT		 1703#endif
1704
1705#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
7f787df1
DT		 1706 { USB_DEVICE(0x0afa, 0x03e8),
1707 .driver_info = (kernel_ulong_t)&dmc_tsc10_dev_info },
ca95a47e
DT		 1708#endif
1709
1710#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
7f787df1
DT		 1711 { USB_DEVICE(0x255e, 0x0001),
1712 .driver_info = (kernel_ulong_t)&irtouch_dev_info },
1713 { USB_DEVICE(0x595a, 0x0001),
1714 .driver_info = (kernel_ulong_t)&irtouch_dev_info },
1715 { USB_DEVICE(0x6615, 0x0001),
1716 .driver_info = (kernel_ulong_t)&irtouch_dev_info },
1717 { USB_DEVICE(0x6615, 0x0012),
1718 .driver_info = (kernel_ulong_t)&irtouch_hires_dev_info },
ca95a47e
DT		 1719#endif
1720
1721#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
7f787df1
DT		 1722 { USB_DEVICE(0x1391, 0x1000),
1723 .driver_info = (kernel_ulong_t)&idealtek_dev_info },
ca95a47e
DT		 1724#endif
1725
1726#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
7f787df1
DT		 1727 { USB_DEVICE(0x0dfc, 0x0001),
1728 .driver_info = (kernel_ulong_t)&general_touch_dev_info },
ca95a47e
DT		 1729#endif
1730
1731#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
7f787df1
DT		 1732 { USB_DEVICE(0x08f2, 0x007f),
1733 .driver_info = (kernel_ulong_t)&gotop_dev_info },
1734 { USB_DEVICE(0x08f2, 0x00ce),
1735 .driver_info = (kernel_ulong_t)&gotop_dev_info },
1736 { USB_DEVICE(0x08f2, 0x00f4),
1737 .driver_info = (kernel_ulong_t)&gotop_dev_info },
ca95a47e
DT		 1738#endif
1739
1740#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
7f787df1
DT		 1741 { USB_DEVICE(0x0f92, 0x0001),
1742 .driver_info = (kernel_ulong_t)&jastec_dev_info },
ca95a47e
DT		 1743#endif
1744
1745#ifdef CONFIG_TOUCHSCREEN_USB_E2I
7f787df1
DT		 1746 { USB_DEVICE(0x1ac7, 0x0001),
1747 .driver_info = (kernel_ulong_t)&e2i_dev_info },
ca95a47e
DT		 1748#endif
1749
1750#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
7f787df1
DT		 1751 { USB_DEVICE(0x14c8, 0x0003),
1752 .driver_info = (kernel_ulong_t)&zytronic_dev_info },
ca95a47e
DT		 1753#endif
1754
1755#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
1756 /* TC5UH */
7f787df1
DT		 1757 { USB_DEVICE(0x0664, 0x0309),
1758 .driver_info = (kernel_ulong_t)&tc45usb_dev_info },
ca95a47e 1759 /* TC4UM */
7f787df1
DT		 1760 { USB_DEVICE(0x0664, 0x0306),
1761 .driver_info = (kernel_ulong_t)&tc45usb_dev_info },
ca95a47e
DT		 1762#endif
1763
1764#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
1765 /* data interface only */
7f787df1
DT		 1766 { USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
1767 .driver_info = (kernel_ulong_t)&nexio_dev_info },
1768 { USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
1769 .driver_info = (kernel_ulong_t)&nexio_dev_info },
ca95a47e
DT		 1770#endif
1771
1772#ifdef CONFIG_TOUCHSCREEN_USB_ELO
7f787df1
DT		 1773 { USB_DEVICE(0x04e7, 0x0020),
1774 .driver_info = (kernel_ulong_t)&elo_dev_info },
ca95a47e
DT		 1775#endif
1776
1777#ifdef CONFIG_TOUCHSCREEN_USB_EASYTOUCH
7f787df1
DT		 1778 { USB_DEVICE(0x7374, 0x0001),
1779 .driver_info = (kernel_ulong_t)&etouch_dev_info },
ca95a47e
DT		 1780#endif
1781
7f787df1 1782 { }
ca95a47e 1783};
1d3e2023
DR		 1784MODULE_DEVICE_TABLE(usb, usbtouch_devices);
1785
1786static struct usb_driver usbtouch_driver = {
1787 .name = "usbtouchscreen",
1788 .probe = usbtouch_probe,
1789 .disconnect = usbtouch_disconnect,
ed4299e1
ON		 1790 .suspend = usbtouch_suspend,
1791 .resume = usbtouch_resume,
a8aef622 1792 .reset_resume = usbtouch_reset_resume,
1d3e2023 1793 .id_table = usbtouch_devices,
6797e19d 1794 .dev_groups = usbtouch_groups,
5d9efc59 1795 .supports_autosuspend = 1,
1d3e2023
DR		 1796};
1797
08642e7c 1798module_usb_driver(usbtouch_driver);
1d3e2023 1799
698c03b4
JL		 1800MODULE_AUTHOR("Daniel Ritz <daniel.ritz@gmx.ch>");
1801MODULE_DESCRIPTION("USB Touchscreen Driver");
1d3e2023
DR		 1802MODULE_LICENSE("GPL");
1803
1804MODULE_ALIAS("touchkitusb");
1805MODULE_ALIAS("itmtouch");
1806MODULE_ALIAS("mtouchusb");
Linux 6.x block layer and io_uring tree(s)