]>
Commit | Line | Data |
---|---|---|
3bea733a | 1 | /* |
4104d13f | 2 | * drivers/input/tablet/wacom_sys.c |
3bea733a | 3 | * |
232f5693 | 4 | * USB Wacom tablet support - system specific code |
3bea733a PC |
5 | */ |
6 | ||
7 | /* | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
3bea733a | 14 | #include "wacom_wac.h" |
51269fe8 | 15 | #include "wacom.h" |
3bea733a | 16 | |
545f4e99 PC |
17 | /* defines to get HID report descriptor */ |
18 | #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) | |
19 | #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) | |
20 | #define HID_USAGE_UNDEFINED 0x00 | |
21 | #define HID_USAGE_PAGE 0x05 | |
22 | #define HID_USAGE_PAGE_DIGITIZER 0x0d | |
23 | #define HID_USAGE_PAGE_DESKTOP 0x01 | |
24 | #define HID_USAGE 0x09 | |
25 | #define HID_USAGE_X 0x30 | |
26 | #define HID_USAGE_Y 0x31 | |
27 | #define HID_USAGE_X_TILT 0x3d | |
28 | #define HID_USAGE_Y_TILT 0x3e | |
29 | #define HID_USAGE_FINGER 0x22 | |
30 | #define HID_USAGE_STYLUS 0x20 | |
f393ee2b | 31 | #define HID_USAGE_CONTACTMAX 0x55 |
4134361a CB |
32 | #define HID_COLLECTION 0xa1 |
33 | #define HID_COLLECTION_LOGICAL 0x02 | |
34 | #define HID_COLLECTION_END 0xc0 | |
545f4e99 PC |
35 | |
36 | enum { | |
37 | WCM_UNDEFINED = 0, | |
38 | WCM_DESKTOP, | |
39 | WCM_DIGITIZER, | |
40 | }; | |
41 | ||
42 | struct hid_descriptor { | |
43 | struct usb_descriptor_header header; | |
44 | __le16 bcdHID; | |
45 | u8 bCountryCode; | |
46 | u8 bNumDescriptors; | |
47 | u8 bDescriptorType; | |
48 | __le16 wDescriptorLength; | |
49 | } __attribute__ ((packed)); | |
50 | ||
51 | /* defines to get/set USB message */ | |
3bea733a PC |
52 | #define USB_REQ_GET_REPORT 0x01 |
53 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 54 | |
545f4e99 | 55 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 56 | #define WAC_MSG_RETRIES 5 |
3bea733a | 57 | |
5d7e7d47 EH |
58 | #define WAC_CMD_LED_CONTROL 0x20 |
59 | #define WAC_CMD_ICON_START 0x21 | |
60 | #define WAC_CMD_ICON_XFER 0x23 | |
61 | #define WAC_CMD_RETRIES 10 | |
62 | ||
63 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
64 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 65 | { |
5d7e7d47 EH |
66 | struct usb_device *dev = interface_to_usbdev(intf); |
67 | int retval; | |
68 | ||
69 | do { | |
70 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
71 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
72 | USB_DIR_IN | USB_TYPE_CLASS | |
73 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
74 | (type << 8) + id, |
75 | intf->altsetting[0].desc.bInterfaceNumber, | |
76 | buf, size, 100); | |
77 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
78 | ||
79 | return retval; | |
3bea733a PC |
80 | } |
81 | ||
5d7e7d47 EH |
82 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
83 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 84 | { |
5d7e7d47 EH |
85 | struct usb_device *dev = interface_to_usbdev(intf); |
86 | int retval; | |
87 | ||
88 | do { | |
89 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
90 | USB_REQ_SET_REPORT, | |
91 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
92 | (type << 8) + id, | |
93 | intf->altsetting[0].desc.bInterfaceNumber, | |
94 | buf, size, 1000); | |
95 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
96 | ||
97 | return retval; | |
3bea733a PC |
98 | } |
99 | ||
54c9b226 | 100 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
101 | { |
102 | struct wacom *wacom = urb->context; | |
65e78a20 | 103 | struct device *dev = &wacom->intf->dev; |
3bea733a PC |
104 | int retval; |
105 | ||
106 | switch (urb->status) { | |
107 | case 0: | |
108 | /* success */ | |
109 | break; | |
110 | case -ECONNRESET: | |
111 | case -ENOENT: | |
112 | case -ESHUTDOWN: | |
113 | /* this urb is terminated, clean up */ | |
3b6aee23 GKH |
114 | dev_dbg(dev, "%s - urb shutting down with status: %d\n", |
115 | __func__, urb->status); | |
3bea733a PC |
116 | return; |
117 | default: | |
3b6aee23 GKH |
118 | dev_dbg(dev, "%s - nonzero urb status received: %d\n", |
119 | __func__, urb->status); | |
3bea733a PC |
120 | goto exit; |
121 | } | |
122 | ||
95dd3b30 | 123 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
124 | |
125 | exit: | |
e7224094 | 126 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 127 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a | 128 | if (retval) |
3b6aee23 | 129 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", |
b3169fec | 130 | __func__, retval); |
3bea733a PC |
131 | } |
132 | ||
3bea733a PC |
133 | static int wacom_open(struct input_dev *dev) |
134 | { | |
7791bdae | 135 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 136 | int retval = 0; |
3bea733a | 137 | |
f6cd3783 | 138 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 139 | return -EIO; |
f6cd3783 DT |
140 | |
141 | mutex_lock(&wacom->lock); | |
e7224094 ON |
142 | |
143 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
f6cd3783 DT |
144 | retval = -EIO; |
145 | goto out; | |
e7224094 ON |
146 | } |
147 | ||
51269fe8 | 148 | wacom->open = true; |
e7224094 | 149 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 150 | |
f6cd3783 | 151 | out: |
e7224094 | 152 | mutex_unlock(&wacom->lock); |
62ecae09 | 153 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 154 | return retval; |
3bea733a PC |
155 | } |
156 | ||
157 | static void wacom_close(struct input_dev *dev) | |
158 | { | |
7791bdae | 159 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
160 | int autopm_error; |
161 | ||
162 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 163 | |
e7224094 | 164 | mutex_lock(&wacom->lock); |
3bea733a | 165 | usb_kill_urb(wacom->irq); |
51269fe8 | 166 | wacom->open = false; |
e7224094 ON |
167 | wacom->intf->needs_remote_wakeup = 0; |
168 | mutex_unlock(&wacom->lock); | |
f6cd3783 | 169 | |
62ecae09 DT |
170 | if (!autopm_error) |
171 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
172 | } |
173 | ||
16bf288c CB |
174 | /* |
175 | * Static values for max X/Y and resolution of Pen interface is stored in | |
176 | * features. This mean physical size of active area can be computed. | |
177 | * This is useful to do when Pen and Touch have same active area of tablet. | |
178 | * This means for Touch device, we only need to find max X/Y value and we | |
179 | * have enough information to compute resolution of touch. | |
180 | */ | |
181 | static void wacom_set_phy_from_res(struct wacom_features *features) | |
182 | { | |
183 | features->x_phy = (features->x_max * 100) / features->x_resolution; | |
184 | features->y_phy = (features->y_max * 100) / features->y_resolution; | |
185 | } | |
186 | ||
4134361a CB |
187 | static int wacom_parse_logical_collection(unsigned char *report, |
188 | struct wacom_features *features) | |
189 | { | |
190 | int length = 0; | |
191 | ||
192 | if (features->type == BAMBOO_PT) { | |
193 | ||
194 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
195 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 196 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 197 | |
16bf288c | 198 | wacom_set_phy_from_res(features); |
4134361a CB |
199 | |
200 | features->x_max = features->y_max = | |
201 | get_unaligned_le16(&report[10]); | |
202 | ||
203 | length = 11; | |
204 | } | |
205 | return length; | |
206 | } | |
207 | ||
f393ee2b PC |
208 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
209 | struct wacom_features *features) | |
210 | { | |
211 | int result = 0; | |
212 | unsigned char *rep_data; | |
213 | ||
214 | rep_data = kmalloc(2, GFP_KERNEL); | |
215 | if (rep_data) { | |
216 | ||
217 | rep_data[0] = 12; | |
218 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 219 | rep_data[0], rep_data, 2, |
f393ee2b PC |
220 | WAC_MSG_RETRIES); |
221 | ||
222 | if (result >= 0 && rep_data[1] > 2) | |
223 | features->touch_max = rep_data[1]; | |
224 | ||
225 | kfree(rep_data); | |
226 | } | |
227 | } | |
228 | ||
428f8588 CB |
229 | /* |
230 | * Interface Descriptor of wacom devices can be incomplete and | |
231 | * inconsistent so wacom_features table is used to store stylus | |
232 | * device's packet lengths, various maximum values, and tablet | |
233 | * resolution based on product ID's. | |
234 | * | |
235 | * For devices that contain 2 interfaces, wacom_features table is | |
236 | * inaccurate for the touch interface. Since the Interface Descriptor | |
237 | * for touch interfaces has pretty complete data, this function exists | |
238 | * to query tablet for this missing information instead of hard coding in | |
239 | * an additional table. | |
240 | * | |
241 | * A typical Interface Descriptor for a stylus will contain a | |
242 | * boot mouse application collection that is not of interest and this | |
243 | * function will ignore it. | |
244 | * | |
245 | * It also contains a digitizer application collection that also is not | |
246 | * of interest since any information it contains would be duplicate | |
247 | * of what is in wacom_features. Usually it defines a report of an array | |
248 | * of bytes that could be used as max length of the stylus packet returned. | |
249 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
250 | * the X and Y logical values contain valid data but it is ignored. | |
251 | * | |
252 | * A typical Interface Descriptor for a touch interface will contain a | |
253 | * Digitizer-Finger Physical Collection which will define both logical | |
254 | * X/Y maximum as well as the physical size of tablet. Since touch | |
255 | * interfaces haven't supported pressure or distance, this is enough | |
256 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
257 | * |
258 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
259 | * Collection. Instead they define a Logical Collection with a single | |
260 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
261 | * |
262 | * Intuos5 touch interface does not contain useful data. We deal with | |
263 | * this after returning from this function. | |
428f8588 CB |
264 | */ |
265 | static int wacom_parse_hid(struct usb_interface *intf, | |
266 | struct hid_descriptor *hid_desc, | |
ec67bbed | 267 | struct wacom_features *features) |
545f4e99 PC |
268 | { |
269 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
270 | char limit = 0; |
271 | /* result has to be defined as int for some devices */ | |
272 | int result = 0; | |
545f4e99 PC |
273 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
274 | unsigned char *report; | |
275 | ||
276 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
277 | if (!report) | |
278 | return -ENOMEM; | |
279 | ||
280 | /* retrive report descriptors */ | |
281 | do { | |
282 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
283 | USB_REQ_GET_DESCRIPTOR, | |
284 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
285 | HID_DEVICET_REPORT << 8, | |
286 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
287 | report, | |
288 | hid_desc->wDescriptorLength, | |
289 | 5000); /* 5 secs */ | |
a417ea44 | 290 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 291 | |
384318ec | 292 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
293 | if (result < 0) |
294 | goto out; | |
295 | ||
296 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
297 | ||
298 | switch (report[i]) { | |
299 | case HID_USAGE_PAGE: | |
300 | switch (report[i + 1]) { | |
301 | case HID_USAGE_PAGE_DIGITIZER: | |
302 | usage = WCM_DIGITIZER; | |
303 | i++; | |
304 | break; | |
305 | ||
306 | case HID_USAGE_PAGE_DESKTOP: | |
307 | usage = WCM_DESKTOP; | |
308 | i++; | |
309 | break; | |
310 | } | |
311 | break; | |
312 | ||
313 | case HID_USAGE: | |
314 | switch (report[i + 1]) { | |
315 | case HID_USAGE_X: | |
316 | if (usage == WCM_DESKTOP) { | |
317 | if (finger) { | |
84eb5aa6 | 318 | features->device_type = BTN_TOOL_FINGER; |
ec67bbed PC |
319 | if (features->type == TABLETPC2FG) { |
320 | /* need to reset back */ | |
321 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
ec67bbed | 322 | } |
1963518b PC |
323 | |
324 | if (features->type == MTSCREEN) | |
325 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
326 | ||
4a88081e PC |
327 | if (features->type == BAMBOO_PT) { |
328 | /* need to reset back */ | |
329 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
4a88081e PC |
330 | features->x_phy = |
331 | get_unaligned_le16(&report[i + 5]); | |
332 | features->x_max = | |
333 | get_unaligned_le16(&report[i + 8]); | |
334 | i += 15; | |
335 | } else { | |
336 | features->x_max = | |
337 | get_unaligned_le16(&report[i + 3]); | |
338 | features->x_phy = | |
339 | get_unaligned_le16(&report[i + 6]); | |
340 | features->unit = report[i + 9]; | |
341 | features->unitExpo = report[i + 11]; | |
342 | i += 12; | |
343 | } | |
545f4e99 | 344 | } else if (pen) { |
ec67bbed PC |
345 | /* penabled only accepts exact bytes of data */ |
346 | if (features->type == TABLETPC2FG) | |
57e413d9 | 347 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 348 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 349 | features->x_max = |
252f7769 | 350 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
351 | i += 4; |
352 | } | |
545f4e99 PC |
353 | } |
354 | break; | |
355 | ||
356 | case HID_USAGE_Y: | |
ec67bbed PC |
357 | if (usage == WCM_DESKTOP) { |
358 | if (finger) { | |
1963518b PC |
359 | int type = features->type; |
360 | ||
361 | if (type == TABLETPC2FG || type == MTSCREEN) { | |
ec67bbed | 362 | features->y_max = |
252f7769 | 363 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 364 | features->y_phy = |
252f7769 | 365 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 366 | i += 7; |
1963518b | 367 | } else if (type == BAMBOO_PT) { |
4a88081e PC |
368 | features->y_phy = |
369 | get_unaligned_le16(&report[i + 3]); | |
370 | features->y_max = | |
371 | get_unaligned_le16(&report[i + 6]); | |
372 | i += 12; | |
ec67bbed PC |
373 | } else { |
374 | features->y_max = | |
375 | features->x_max; | |
376 | features->y_phy = | |
252f7769 | 377 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
378 | i += 4; |
379 | } | |
380 | } else if (pen) { | |
ec67bbed | 381 | features->y_max = |
252f7769 | 382 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
383 | i += 4; |
384 | } | |
385 | } | |
545f4e99 PC |
386 | break; |
387 | ||
388 | case HID_USAGE_FINGER: | |
389 | finger = 1; | |
390 | i++; | |
391 | break; | |
392 | ||
428f8588 CB |
393 | /* |
394 | * Requiring Stylus Usage will ignore boot mouse | |
395 | * X/Y values and some cases of invalid Digitizer X/Y | |
396 | * values commonly reported. | |
397 | */ | |
545f4e99 PC |
398 | case HID_USAGE_STYLUS: |
399 | pen = 1; | |
400 | i++; | |
401 | break; | |
f393ee2b PC |
402 | |
403 | case HID_USAGE_CONTACTMAX: | |
1cecc5cc PC |
404 | /* leave touch_max as is if predefined */ |
405 | if (!features->touch_max) | |
406 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
407 | i++; |
408 | break; | |
545f4e99 PC |
409 | } |
410 | break; | |
411 | ||
4134361a | 412 | case HID_COLLECTION_END: |
ec67bbed | 413 | /* reset UsagePage and Finger */ |
545f4e99 PC |
414 | finger = usage = 0; |
415 | break; | |
4134361a CB |
416 | |
417 | case HID_COLLECTION: | |
418 | i++; | |
419 | switch (report[i]) { | |
420 | case HID_COLLECTION_LOGICAL: | |
421 | i += wacom_parse_logical_collection(&report[i], | |
422 | features); | |
423 | break; | |
424 | } | |
425 | break; | |
545f4e99 PC |
426 | } |
427 | } | |
428 | ||
545f4e99 | 429 | out: |
384318ec | 430 | result = 0; |
545f4e99 PC |
431 | kfree(report); |
432 | return result; | |
433 | } | |
434 | ||
ec67bbed | 435 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) |
3b7307c2 DT |
436 | { |
437 | unsigned char *rep_data; | |
ec67bbed PC |
438 | int limit = 0, report_id = 2; |
439 | int error = -ENOMEM; | |
3b7307c2 | 440 | |
3b48c91c | 441 | rep_data = kmalloc(4, GFP_KERNEL); |
3b7307c2 | 442 | if (!rep_data) |
ec67bbed PC |
443 | return error; |
444 | ||
1963518b PC |
445 | /* ask to report Wacom data */ |
446 | if (features->device_type == BTN_TOOL_FINGER) { | |
447 | /* if it is an MT Tablet PC touch */ | |
ea2e6024 | 448 | if (features->type > TABLETPC) { |
1963518b PC |
449 | do { |
450 | rep_data[0] = 3; | |
451 | rep_data[1] = 4; | |
452 | rep_data[2] = 0; | |
453 | rep_data[3] = 0; | |
454 | report_id = 3; | |
455 | error = wacom_set_report(intf, | |
456 | WAC_HID_FEATURE_REPORT, | |
457 | report_id, | |
458 | rep_data, 4, 1); | |
459 | if (error >= 0) | |
460 | error = wacom_get_report(intf, | |
461 | WAC_HID_FEATURE_REPORT, | |
462 | report_id, | |
463 | rep_data, 4, 1); | |
464 | } while ((error < 0 || rep_data[1] != 4) && | |
465 | limit++ < WAC_MSG_RETRIES); | |
466 | } | |
ea2e6024 | 467 | } else if (features->type <= BAMBOO_PT && |
d3825d51 | 468 | features->type != WIRELESS && |
6e8ec537 | 469 | features->device_type == BTN_TOOL_PEN) { |
ec67bbed PC |
470 | do { |
471 | rep_data[0] = 2; | |
472 | rep_data[1] = 2; | |
5d7e7d47 EH |
473 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
474 | report_id, rep_data, 2, 1); | |
ec67bbed | 475 | if (error >= 0) |
5d7e7d47 EH |
476 | error = wacom_get_report(intf, |
477 | WAC_HID_FEATURE_REPORT, | |
478 | report_id, rep_data, 2, 1); | |
a417ea44 | 479 | } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES); |
ec67bbed | 480 | } |
3b7307c2 DT |
481 | |
482 | kfree(rep_data); | |
483 | ||
484 | return error < 0 ? error : 0; | |
485 | } | |
486 | ||
ec67bbed | 487 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 488 | struct wacom_features *features) |
ec67bbed PC |
489 | { |
490 | int error = 0; | |
491 | struct usb_host_interface *interface = intf->cur_altsetting; | |
492 | struct hid_descriptor *hid_desc; | |
493 | ||
fed87e65 | 494 | /* default features */ |
ec67bbed | 495 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
496 | features->x_fuzz = 4; |
497 | features->y_fuzz = 4; | |
498 | features->pressure_fuzz = 0; | |
499 | features->distance_fuzz = 0; | |
ec67bbed | 500 | |
d3825d51 CB |
501 | /* |
502 | * The wireless device HID is basic and layout conflicts with | |
503 | * other tablets (monitor and touch interface can look like pen). | |
504 | * Skip the query for this type and modify defaults based on | |
505 | * interface number. | |
506 | */ | |
507 | if (features->type == WIRELESS) { | |
508 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
509 | features->device_type = 0; | |
510 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 511 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
512 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
513 | } | |
514 | } | |
515 | ||
1963518b | 516 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 517 | if (features->type < BAMBOO_PT) { |
ec67bbed | 518 | goto out; |
1963518b | 519 | } |
ec67bbed | 520 | |
a882c932 DT |
521 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
522 | if (error) { | |
523 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
524 | HID_DEVICET_REPORT, &hid_desc); | |
525 | if (error) { | |
eb71d1bb DT |
526 | dev_err(&intf->dev, |
527 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
528 | goto out; |
529 | } | |
530 | } | |
531 | error = wacom_parse_hid(intf, hid_desc, features); | |
532 | if (error) | |
533 | goto out; | |
534 | ||
ec67bbed PC |
535 | out: |
536 | return error; | |
537 | } | |
538 | ||
4492efff PC |
539 | struct wacom_usbdev_data { |
540 | struct list_head list; | |
541 | struct kref kref; | |
542 | struct usb_device *dev; | |
543 | struct wacom_shared shared; | |
544 | }; | |
545 | ||
546 | static LIST_HEAD(wacom_udev_list); | |
547 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
548 | ||
549 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) | |
550 | { | |
551 | struct wacom_usbdev_data *data; | |
552 | ||
553 | list_for_each_entry(data, &wacom_udev_list, list) { | |
554 | if (data->dev == dev) { | |
555 | kref_get(&data->kref); | |
556 | return data; | |
557 | } | |
558 | } | |
559 | ||
560 | return NULL; | |
561 | } | |
562 | ||
563 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
564 | struct usb_device *dev) | |
565 | { | |
566 | struct wacom_usbdev_data *data; | |
567 | int retval = 0; | |
568 | ||
569 | mutex_lock(&wacom_udev_list_lock); | |
570 | ||
571 | data = wacom_get_usbdev_data(dev); | |
572 | if (!data) { | |
573 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
574 | if (!data) { | |
575 | retval = -ENOMEM; | |
576 | goto out; | |
577 | } | |
578 | ||
579 | kref_init(&data->kref); | |
580 | data->dev = dev; | |
581 | list_add_tail(&data->list, &wacom_udev_list); | |
582 | } | |
583 | ||
584 | wacom->shared = &data->shared; | |
585 | ||
586 | out: | |
587 | mutex_unlock(&wacom_udev_list_lock); | |
588 | return retval; | |
589 | } | |
590 | ||
591 | static void wacom_release_shared_data(struct kref *kref) | |
592 | { | |
593 | struct wacom_usbdev_data *data = | |
594 | container_of(kref, struct wacom_usbdev_data, kref); | |
595 | ||
596 | mutex_lock(&wacom_udev_list_lock); | |
597 | list_del(&data->list); | |
598 | mutex_unlock(&wacom_udev_list_lock); | |
599 | ||
600 | kfree(data); | |
601 | } | |
602 | ||
603 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
604 | { | |
605 | struct wacom_usbdev_data *data; | |
606 | ||
607 | if (wacom->shared) { | |
608 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
609 | kref_put(&data->kref, wacom_release_shared_data); | |
610 | wacom->shared = NULL; | |
611 | } | |
612 | } | |
613 | ||
5d7e7d47 EH |
614 | static int wacom_led_control(struct wacom *wacom) |
615 | { | |
616 | unsigned char *buf; | |
9b5b95dd | 617 | int retval; |
5d7e7d47 EH |
618 | |
619 | buf = kzalloc(9, GFP_KERNEL); | |
620 | if (!buf) | |
621 | return -ENOMEM; | |
622 | ||
9b5b95dd JG |
623 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
624 | wacom->wacom_wac.features.type <= INTUOS5L) { | |
625 | /* | |
626 | * Touch Ring and crop mark LED luminance may take on | |
627 | * one of four values: | |
628 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
629 | */ | |
630 | int ring_led = wacom->led.select[0] & 0x03; | |
631 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
632 | int crop_lum = 0; | |
633 | ||
634 | buf[0] = WAC_CMD_LED_CONTROL; | |
635 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
636 | } | |
637 | else { | |
638 | int led = wacom->led.select[0] | 0x4; | |
639 | ||
640 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
641 | wacom->wacom_wac.features.type == WACOM_24HD) | |
642 | led |= (wacom->led.select[1] << 4) | 0x40; | |
643 | ||
644 | buf[0] = WAC_CMD_LED_CONTROL; | |
645 | buf[1] = led; | |
646 | buf[2] = wacom->led.llv; | |
647 | buf[3] = wacom->led.hlv; | |
648 | buf[4] = wacom->led.img_lum; | |
649 | } | |
5d7e7d47 EH |
650 | |
651 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
652 | buf, 9, WAC_CMD_RETRIES); | |
653 | kfree(buf); | |
654 | ||
655 | return retval; | |
656 | } | |
657 | ||
658 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
659 | { | |
660 | unsigned char *buf; | |
661 | int i, retval; | |
662 | ||
663 | buf = kzalloc(259, GFP_KERNEL); | |
664 | if (!buf) | |
665 | return -ENOMEM; | |
666 | ||
667 | /* Send 'start' command */ | |
668 | buf[0] = WAC_CMD_ICON_START; | |
669 | buf[1] = 1; | |
670 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
671 | buf, 2, WAC_CMD_RETRIES); | |
672 | if (retval < 0) | |
673 | goto out; | |
674 | ||
675 | buf[0] = WAC_CMD_ICON_XFER; | |
676 | buf[1] = button_id & 0x07; | |
677 | for (i = 0; i < 4; i++) { | |
678 | buf[2] = i; | |
679 | memcpy(buf + 3, img + i * 256, 256); | |
680 | ||
681 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
682 | buf, 259, WAC_CMD_RETRIES); | |
683 | if (retval < 0) | |
684 | break; | |
685 | } | |
686 | ||
687 | /* Send 'stop' */ | |
688 | buf[0] = WAC_CMD_ICON_START; | |
689 | buf[1] = 0; | |
690 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
691 | buf, 2, WAC_CMD_RETRIES); | |
692 | ||
693 | out: | |
694 | kfree(buf); | |
695 | return retval; | |
696 | } | |
697 | ||
09e7d941 | 698 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
699 | const char *buf, size_t count) |
700 | { | |
701 | struct wacom *wacom = dev_get_drvdata(dev); | |
702 | unsigned int id; | |
703 | int err; | |
704 | ||
705 | err = kstrtouint(buf, 10, &id); | |
706 | if (err) | |
707 | return err; | |
708 | ||
709 | mutex_lock(&wacom->lock); | |
710 | ||
09e7d941 | 711 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
712 | err = wacom_led_control(wacom); |
713 | ||
714 | mutex_unlock(&wacom->lock); | |
715 | ||
716 | return err < 0 ? err : count; | |
717 | } | |
718 | ||
09e7d941 PC |
719 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
720 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
721 | struct device_attribute *attr, const char *buf, size_t count) \ | |
722 | { \ | |
723 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
724 | } \ | |
04c59abd PC |
725 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
726 | struct device_attribute *attr, char *buf) \ | |
727 | { \ | |
728 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
729 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
730 | } \ | |
731 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
732 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
733 | wacom_led##SET_ID##_select_store) |
734 | ||
735 | DEVICE_LED_SELECT_ATTR(0); | |
736 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
737 | |
738 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
739 | const char *buf, size_t count) | |
740 | { | |
741 | unsigned int value; | |
742 | int err; | |
743 | ||
744 | err = kstrtouint(buf, 10, &value); | |
745 | if (err) | |
746 | return err; | |
747 | ||
748 | mutex_lock(&wacom->lock); | |
749 | ||
750 | *dest = value & 0x7f; | |
751 | err = wacom_led_control(wacom); | |
752 | ||
753 | mutex_unlock(&wacom->lock); | |
754 | ||
755 | return err < 0 ? err : count; | |
756 | } | |
757 | ||
758 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
759 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
760 | struct device_attribute *attr, const char *buf, size_t count) \ | |
761 | { \ | |
762 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
763 | \ | |
764 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
765 | buf, count); \ | |
766 | } \ | |
767 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
768 | NULL, wacom_##name##_luminance_store) | |
769 | ||
770 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
771 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
772 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
773 | ||
774 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
775 | const char *buf, size_t count) | |
776 | { | |
777 | struct wacom *wacom = dev_get_drvdata(dev); | |
778 | int err; | |
779 | ||
780 | if (count != 1024) | |
781 | return -EINVAL; | |
782 | ||
783 | mutex_lock(&wacom->lock); | |
784 | ||
785 | err = wacom_led_putimage(wacom, button_id, buf); | |
786 | ||
787 | mutex_unlock(&wacom->lock); | |
788 | ||
789 | return err < 0 ? err : count; | |
790 | } | |
791 | ||
792 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
793 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
794 | struct device_attribute *attr, const char *buf, size_t count) \ | |
795 | { \ | |
796 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
797 | } \ | |
798 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
799 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
800 | ||
801 | DEVICE_BTNIMG_ATTR(0); | |
802 | DEVICE_BTNIMG_ATTR(1); | |
803 | DEVICE_BTNIMG_ATTR(2); | |
804 | DEVICE_BTNIMG_ATTR(3); | |
805 | DEVICE_BTNIMG_ATTR(4); | |
806 | DEVICE_BTNIMG_ATTR(5); | |
807 | DEVICE_BTNIMG_ATTR(6); | |
808 | DEVICE_BTNIMG_ATTR(7); | |
809 | ||
09e7d941 PC |
810 | static struct attribute *cintiq_led_attrs[] = { |
811 | &dev_attr_status_led0_select.attr, | |
812 | &dev_attr_status_led1_select.attr, | |
813 | NULL | |
814 | }; | |
815 | ||
816 | static struct attribute_group cintiq_led_attr_group = { | |
817 | .name = "wacom_led", | |
818 | .attrs = cintiq_led_attrs, | |
819 | }; | |
820 | ||
821 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
822 | &dev_attr_status0_luminance.attr, |
823 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 824 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
825 | &dev_attr_buttons_luminance.attr, |
826 | &dev_attr_button0_rawimg.attr, | |
827 | &dev_attr_button1_rawimg.attr, | |
828 | &dev_attr_button2_rawimg.attr, | |
829 | &dev_attr_button3_rawimg.attr, | |
830 | &dev_attr_button4_rawimg.attr, | |
831 | &dev_attr_button5_rawimg.attr, | |
832 | &dev_attr_button6_rawimg.attr, | |
833 | &dev_attr_button7_rawimg.attr, | |
834 | NULL | |
835 | }; | |
836 | ||
09e7d941 | 837 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 838 | .name = "wacom_led", |
09e7d941 | 839 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
840 | }; |
841 | ||
9b5b95dd JG |
842 | static struct attribute *intuos5_led_attrs[] = { |
843 | &dev_attr_status0_luminance.attr, | |
844 | &dev_attr_status_led0_select.attr, | |
845 | NULL | |
846 | }; | |
847 | ||
848 | static struct attribute_group intuos5_led_attr_group = { | |
849 | .name = "wacom_led", | |
850 | .attrs = intuos5_led_attrs, | |
851 | }; | |
852 | ||
5d7e7d47 EH |
853 | static int wacom_initialize_leds(struct wacom *wacom) |
854 | { | |
855 | int error; | |
856 | ||
09e7d941 PC |
857 | /* Initialize default values */ |
858 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 859 | case INTUOS4S: |
09e7d941 PC |
860 | case INTUOS4: |
861 | case INTUOS4L: | |
862 | wacom->led.select[0] = 0; | |
863 | wacom->led.select[1] = 0; | |
f4fa9a6d | 864 | wacom->led.llv = 10; |
5d7e7d47 EH |
865 | wacom->led.hlv = 20; |
866 | wacom->led.img_lum = 10; | |
09e7d941 PC |
867 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
868 | &intuos4_led_attr_group); | |
869 | break; | |
870 | ||
246835fc | 871 | case WACOM_24HD: |
09e7d941 PC |
872 | case WACOM_21UX2: |
873 | wacom->led.select[0] = 0; | |
874 | wacom->led.select[1] = 0; | |
875 | wacom->led.llv = 0; | |
876 | wacom->led.hlv = 0; | |
877 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
878 | |
879 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
880 | &cintiq_led_attr_group); |
881 | break; | |
882 | ||
9b5b95dd JG |
883 | case INTUOS5S: |
884 | case INTUOS5: | |
885 | case INTUOS5L: | |
886 | wacom->led.select[0] = 0; | |
887 | wacom->led.select[1] = 0; | |
888 | wacom->led.llv = 32; | |
889 | wacom->led.hlv = 0; | |
890 | wacom->led.img_lum = 0; | |
891 | ||
892 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
893 | &intuos5_led_attr_group); | |
894 | break; | |
895 | ||
09e7d941 PC |
896 | default: |
897 | return 0; | |
5d7e7d47 EH |
898 | } |
899 | ||
09e7d941 PC |
900 | if (error) { |
901 | dev_err(&wacom->intf->dev, | |
902 | "cannot create sysfs group err: %d\n", error); | |
903 | return error; | |
904 | } | |
905 | wacom_led_control(wacom); | |
906 | ||
5d7e7d47 EH |
907 | return 0; |
908 | } | |
909 | ||
910 | static void wacom_destroy_leds(struct wacom *wacom) | |
911 | { | |
09e7d941 | 912 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 913 | case INTUOS4S: |
09e7d941 PC |
914 | case INTUOS4: |
915 | case INTUOS4L: | |
5d7e7d47 | 916 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
917 | &intuos4_led_attr_group); |
918 | break; | |
919 | ||
246835fc | 920 | case WACOM_24HD: |
09e7d941 PC |
921 | case WACOM_21UX2: |
922 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
923 | &cintiq_led_attr_group); | |
924 | break; | |
9b5b95dd JG |
925 | |
926 | case INTUOS5S: | |
927 | case INTUOS5: | |
928 | case INTUOS5L: | |
929 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
930 | &intuos5_led_attr_group); | |
931 | break; | |
5d7e7d47 EH |
932 | } |
933 | } | |
934 | ||
a1d552cc CB |
935 | static enum power_supply_property wacom_battery_props[] = { |
936 | POWER_SUPPLY_PROP_CAPACITY | |
937 | }; | |
938 | ||
939 | static int wacom_battery_get_property(struct power_supply *psy, | |
940 | enum power_supply_property psp, | |
941 | union power_supply_propval *val) | |
942 | { | |
943 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
944 | int ret = 0; | |
945 | ||
946 | switch (psp) { | |
947 | case POWER_SUPPLY_PROP_CAPACITY: | |
948 | val->intval = | |
949 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
950 | break; | |
951 | default: | |
952 | ret = -EINVAL; | |
953 | break; | |
954 | } | |
955 | ||
956 | return ret; | |
957 | } | |
958 | ||
959 | static int wacom_initialize_battery(struct wacom *wacom) | |
960 | { | |
961 | int error = 0; | |
962 | ||
963 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
964 | wacom->battery.properties = wacom_battery_props; | |
965 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
966 | wacom->battery.get_property = wacom_battery_get_property; | |
967 | wacom->battery.name = "wacom_battery"; | |
968 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
969 | wacom->battery.use_for_apm = 0; | |
970 | ||
971 | error = power_supply_register(&wacom->usbdev->dev, | |
972 | &wacom->battery); | |
b7af2bb8 CB |
973 | |
974 | if (!error) | |
975 | power_supply_powers(&wacom->battery, | |
976 | &wacom->usbdev->dev); | |
a1d552cc CB |
977 | } |
978 | ||
979 | return error; | |
980 | } | |
981 | ||
982 | static void wacom_destroy_battery(struct wacom *wacom) | |
983 | { | |
b7af2bb8 CB |
984 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
985 | wacom->battery.dev) { | |
a1d552cc | 986 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
987 | wacom->battery.dev = NULL; |
988 | } | |
a1d552cc CB |
989 | } |
990 | ||
3aac0ef1 CB |
991 | static int wacom_register_input(struct wacom *wacom) |
992 | { | |
993 | struct input_dev *input_dev; | |
994 | struct usb_interface *intf = wacom->intf; | |
995 | struct usb_device *dev = interface_to_usbdev(intf); | |
996 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
997 | int error; | |
998 | ||
999 | input_dev = input_allocate_device(); | |
1963518b PC |
1000 | if (!input_dev) { |
1001 | error = -ENOMEM; | |
1002 | goto fail1; | |
1003 | } | |
3aac0ef1 CB |
1004 | |
1005 | input_dev->name = wacom_wac->name; | |
1006 | input_dev->dev.parent = &intf->dev; | |
1007 | input_dev->open = wacom_open; | |
1008 | input_dev->close = wacom_close; | |
1009 | usb_to_input_id(dev, &input_dev->id); | |
1010 | input_set_drvdata(input_dev, wacom); | |
1011 | ||
1012 | wacom_wac->input = input_dev; | |
1963518b PC |
1013 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1014 | if (error) | |
1015 | goto fail1; | |
3aac0ef1 CB |
1016 | |
1017 | error = input_register_device(input_dev); | |
1963518b PC |
1018 | if (error) |
1019 | goto fail2; | |
1020 | ||
1021 | return 0; | |
3aac0ef1 | 1022 | |
1963518b PC |
1023 | fail2: |
1024 | input_free_device(input_dev); | |
1025 | wacom_wac->input = NULL; | |
1026 | fail1: | |
3aac0ef1 CB |
1027 | return error; |
1028 | } | |
1029 | ||
16bf288c CB |
1030 | static void wacom_wireless_work(struct work_struct *work) |
1031 | { | |
1032 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1033 | struct usb_device *usbdev = wacom->usbdev; | |
1034 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1035 | struct wacom *wacom1, *wacom2; |
1036 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1037 | int error; | |
16bf288c CB |
1038 | |
1039 | /* | |
1040 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1041 | * remove any existing input and battery devices. |
16bf288c CB |
1042 | */ |
1043 | ||
b7af2bb8 CB |
1044 | wacom_destroy_battery(wacom); |
1045 | ||
16bf288c | 1046 | /* Stylus interface */ |
b7af2bb8 CB |
1047 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1048 | wacom_wac1 = &(wacom1->wacom_wac); | |
1049 | if (wacom_wac1->input) | |
1050 | input_unregister_device(wacom_wac1->input); | |
1051 | wacom_wac1->input = NULL; | |
16bf288c CB |
1052 | |
1053 | /* Touch interface */ | |
b7af2bb8 CB |
1054 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1055 | wacom_wac2 = &(wacom2->wacom_wac); | |
1056 | if (wacom_wac2->input) | |
1057 | input_unregister_device(wacom_wac2->input); | |
1058 | wacom_wac2->input = NULL; | |
16bf288c CB |
1059 | |
1060 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1061 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1062 | } else { |
1063 | const struct usb_device_id *id = wacom_ids; | |
1064 | ||
eb71d1bb DT |
1065 | dev_info(&wacom->intf->dev, |
1066 | "wireless tablet connected with PID %x\n", | |
1067 | wacom_wac->pid); | |
16bf288c CB |
1068 | |
1069 | while (id->match_flags) { | |
1070 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1071 | id->idProduct == wacom_wac->pid) | |
1072 | break; | |
1073 | id++; | |
1074 | } | |
1075 | ||
1076 | if (!id->match_flags) { | |
eb71d1bb DT |
1077 | dev_info(&wacom->intf->dev, |
1078 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1079 | return; |
1080 | } | |
1081 | ||
1082 | /* Stylus interface */ | |
b7af2bb8 | 1083 | wacom_wac1->features = |
16bf288c | 1084 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1085 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
1086 | error = wacom_register_input(wacom1); | |
1087 | if (error) | |
1088 | goto fail1; | |
16bf288c CB |
1089 | |
1090 | /* Touch interface */ | |
b7af2bb8 | 1091 | wacom_wac2->features = |
16bf288c | 1092 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1093 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1094 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1095 | wacom_set_phy_from_res(&wacom_wac2->features); | |
1096 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1097 | error = wacom_register_input(wacom2); | |
1098 | if (error) | |
1099 | goto fail2; | |
1100 | ||
1101 | error = wacom_initialize_battery(wacom); | |
1102 | if (error) | |
1103 | goto fail3; | |
16bf288c | 1104 | } |
b7af2bb8 CB |
1105 | |
1106 | return; | |
1107 | ||
1108 | fail3: | |
1109 | input_unregister_device(wacom_wac2->input); | |
1110 | wacom_wac2->input = NULL; | |
1111 | fail2: | |
1112 | input_unregister_device(wacom_wac1->input); | |
1113 | wacom_wac1->input = NULL; | |
1114 | fail1: | |
1115 | return; | |
16bf288c CB |
1116 | } |
1117 | ||
3bea733a PC |
1118 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1119 | { | |
1120 | struct usb_device *dev = interface_to_usbdev(intf); | |
1121 | struct usb_endpoint_descriptor *endpoint; | |
1122 | struct wacom *wacom; | |
1123 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1124 | struct wacom_features *features; |
e33da8a5 | 1125 | int error; |
3bea733a | 1126 | |
e33da8a5 | 1127 | if (!id->driver_info) |
b036f6fb BB |
1128 | return -EINVAL; |
1129 | ||
3bea733a | 1130 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1131 | if (!wacom) |
1132 | return -ENOMEM; | |
e33da8a5 | 1133 | |
51269fe8 | 1134 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1135 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1136 | features = &wacom_wac->features; | |
1137 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1138 | error = -EINVAL; | |
3bea733a | 1139 | goto fail1; |
e33da8a5 | 1140 | } |
3bea733a | 1141 | |
997ea58e DM |
1142 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1143 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1144 | if (!wacom_wac->data) { |
1145 | error = -ENOMEM; | |
3bea733a | 1146 | goto fail1; |
e33da8a5 | 1147 | } |
3bea733a PC |
1148 | |
1149 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1150 | if (!wacom->irq) { |
1151 | error = -ENOMEM; | |
3bea733a | 1152 | goto fail2; |
e33da8a5 | 1153 | } |
3bea733a PC |
1154 | |
1155 | wacom->usbdev = dev; | |
e7224094 ON |
1156 | wacom->intf = intf; |
1157 | mutex_init(&wacom->lock); | |
16bf288c | 1158 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1159 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1160 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1161 | ||
545f4e99 PC |
1162 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1163 | ||
f393ee2b | 1164 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1165 | error = wacom_retrieve_hid_descriptor(intf, features); |
1166 | if (error) | |
4b6d4434 | 1167 | goto fail3; |
545f4e99 | 1168 | |
ae584ca4 JG |
1169 | /* |
1170 | * Intuos5 has no useful data about its touch interface in its | |
1171 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1172 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1173 | */ | |
1174 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { | |
1175 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { | |
1176 | features->device_type = BTN_TOOL_FINGER; | |
1177 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1178 | ||
32edbf56 | 1179 | wacom_set_phy_from_res(features); |
ae584ca4 JG |
1180 | |
1181 | features->x_max = 4096; | |
1182 | features->y_max = 4096; | |
1183 | } else { | |
1184 | features->device_type = BTN_TOOL_PEN; | |
1185 | } | |
1186 | } | |
1187 | ||
bc73dd39 HR |
1188 | wacom_setup_device_quirks(features); |
1189 | ||
49b764ae PC |
1190 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1191 | ||
bc73dd39 | 1192 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
49b764ae PC |
1193 | /* Append the device type to the name */ |
1194 | strlcat(wacom_wac->name, | |
1195 | features->device_type == BTN_TOOL_PEN ? | |
1196 | " Pen" : " Finger", | |
1197 | sizeof(wacom_wac->name)); | |
4492efff PC |
1198 | |
1199 | error = wacom_add_shared_data(wacom_wac, dev); | |
1200 | if (error) | |
1201 | goto fail3; | |
49b764ae PC |
1202 | } |
1203 | ||
3bea733a PC |
1204 | usb_fill_int_urb(wacom->irq, dev, |
1205 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1206 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1207 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1208 | wacom->irq->transfer_dma = wacom->data_dma; |
1209 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1210 | ||
5d7e7d47 | 1211 | error = wacom_initialize_leds(wacom); |
5014186d | 1212 | if (error) |
4492efff | 1213 | goto fail4; |
3bea733a | 1214 | |
d3825d51 CB |
1215 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1216 | error = wacom_register_input(wacom); | |
1217 | if (error) | |
b7af2bb8 | 1218 | goto fail5; |
d3825d51 | 1219 | } |
5d7e7d47 | 1220 | |
ec67bbed PC |
1221 | /* Note that if query fails it is not a hard failure */ |
1222 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1223 | |
1224 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1225 | |
1226 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
1227 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) | |
1228 | goto fail5; | |
1229 | } | |
1230 | ||
3bea733a PC |
1231 | return 0; |
1232 | ||
5d7e7d47 | 1233 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1234 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1235 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1236 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1237 | fail1: kfree(wacom); |
5014186d | 1238 | return error; |
3bea733a PC |
1239 | } |
1240 | ||
1241 | static void wacom_disconnect(struct usb_interface *intf) | |
1242 | { | |
e7224094 | 1243 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1244 | |
1245 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1246 | |
1247 | usb_kill_urb(wacom->irq); | |
16bf288c | 1248 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1249 | if (wacom->wacom_wac.input) |
1250 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1251 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1252 | wacom_destroy_leds(wacom); |
e7224094 | 1253 | usb_free_urb(wacom->irq); |
997ea58e | 1254 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1255 | wacom->wacom_wac.data, wacom->data_dma); |
1256 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1257 | kfree(wacom); |
1258 | } | |
1259 | ||
1260 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1261 | { | |
1262 | struct wacom *wacom = usb_get_intfdata(intf); | |
1263 | ||
1264 | mutex_lock(&wacom->lock); | |
1265 | usb_kill_urb(wacom->irq); | |
1266 | mutex_unlock(&wacom->lock); | |
1267 | ||
1268 | return 0; | |
1269 | } | |
1270 | ||
1271 | static int wacom_resume(struct usb_interface *intf) | |
1272 | { | |
1273 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1274 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1275 | int rv = 0; |
e7224094 ON |
1276 | |
1277 | mutex_lock(&wacom->lock); | |
38101475 PC |
1278 | |
1279 | /* switch to wacom mode first */ | |
1280 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1281 | wacom_led_control(wacom); |
38101475 | 1282 | |
d3825d51 CB |
1283 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
1284 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1285 | rv = -EIO; |
38101475 | 1286 | |
e7224094 ON |
1287 | mutex_unlock(&wacom->lock); |
1288 | ||
1289 | return rv; | |
1290 | } | |
1291 | ||
1292 | static int wacom_reset_resume(struct usb_interface *intf) | |
1293 | { | |
1294 | return wacom_resume(intf); | |
3bea733a PC |
1295 | } |
1296 | ||
1297 | static struct usb_driver wacom_driver = { | |
1298 | .name = "wacom", | |
b036f6fb | 1299 | .id_table = wacom_ids, |
3bea733a PC |
1300 | .probe = wacom_probe, |
1301 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1302 | .suspend = wacom_suspend, |
1303 | .resume = wacom_resume, | |
1304 | .reset_resume = wacom_reset_resume, | |
1305 | .supports_autosuspend = 1, | |
3bea733a PC |
1306 | }; |
1307 | ||
08642e7c | 1308 | module_usb_driver(wacom_driver); |