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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; | |
3bea733a PC |
103 | int retval; |
104 | ||
105 | switch (urb->status) { | |
106 | case 0: | |
107 | /* success */ | |
108 | break; | |
109 | case -ECONNRESET: | |
110 | case -ENOENT: | |
111 | case -ESHUTDOWN: | |
112 | /* this urb is terminated, clean up */ | |
ea3e6c59 | 113 | dbg("%s - urb shutting down with status: %d", __func__, urb->status); |
3bea733a PC |
114 | return; |
115 | default: | |
ea3e6c59 | 116 | dbg("%s - nonzero urb status received: %d", __func__, urb->status); |
3bea733a PC |
117 | goto exit; |
118 | } | |
119 | ||
95dd3b30 | 120 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
121 | |
122 | exit: | |
e7224094 | 123 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 124 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a PC |
125 | if (retval) |
126 | err ("%s - usb_submit_urb failed with result %d", | |
ea3e6c59 | 127 | __func__, retval); |
3bea733a PC |
128 | } |
129 | ||
3bea733a PC |
130 | static int wacom_open(struct input_dev *dev) |
131 | { | |
7791bdae | 132 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 133 | int retval = 0; |
3bea733a | 134 | |
f6cd3783 | 135 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 136 | return -EIO; |
f6cd3783 DT |
137 | |
138 | mutex_lock(&wacom->lock); | |
e7224094 ON |
139 | |
140 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
f6cd3783 DT |
141 | retval = -EIO; |
142 | goto out; | |
e7224094 ON |
143 | } |
144 | ||
51269fe8 | 145 | wacom->open = true; |
e7224094 | 146 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 147 | |
f6cd3783 | 148 | out: |
e7224094 | 149 | mutex_unlock(&wacom->lock); |
62ecae09 | 150 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 151 | return retval; |
3bea733a PC |
152 | } |
153 | ||
154 | static void wacom_close(struct input_dev *dev) | |
155 | { | |
7791bdae | 156 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
157 | int autopm_error; |
158 | ||
159 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 160 | |
e7224094 | 161 | mutex_lock(&wacom->lock); |
3bea733a | 162 | usb_kill_urb(wacom->irq); |
51269fe8 | 163 | wacom->open = false; |
e7224094 ON |
164 | wacom->intf->needs_remote_wakeup = 0; |
165 | mutex_unlock(&wacom->lock); | |
f6cd3783 | 166 | |
62ecae09 DT |
167 | if (!autopm_error) |
168 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
169 | } |
170 | ||
16bf288c CB |
171 | /* |
172 | * Static values for max X/Y and resolution of Pen interface is stored in | |
173 | * features. This mean physical size of active area can be computed. | |
174 | * This is useful to do when Pen and Touch have same active area of tablet. | |
175 | * This means for Touch device, we only need to find max X/Y value and we | |
176 | * have enough information to compute resolution of touch. | |
177 | */ | |
178 | static void wacom_set_phy_from_res(struct wacom_features *features) | |
179 | { | |
180 | features->x_phy = (features->x_max * 100) / features->x_resolution; | |
181 | features->y_phy = (features->y_max * 100) / features->y_resolution; | |
182 | } | |
183 | ||
4134361a CB |
184 | static int wacom_parse_logical_collection(unsigned char *report, |
185 | struct wacom_features *features) | |
186 | { | |
187 | int length = 0; | |
188 | ||
189 | if (features->type == BAMBOO_PT) { | |
190 | ||
191 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
192 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 193 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 194 | |
16bf288c | 195 | wacom_set_phy_from_res(features); |
4134361a CB |
196 | |
197 | features->x_max = features->y_max = | |
198 | get_unaligned_le16(&report[10]); | |
199 | ||
200 | length = 11; | |
201 | } | |
202 | return length; | |
203 | } | |
204 | ||
f393ee2b PC |
205 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
206 | struct wacom_features *features) | |
207 | { | |
208 | int result = 0; | |
209 | unsigned char *rep_data; | |
210 | ||
211 | rep_data = kmalloc(2, GFP_KERNEL); | |
212 | if (rep_data) { | |
213 | ||
214 | rep_data[0] = 12; | |
215 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
216 | rep_data[0], &rep_data, 2, | |
217 | WAC_MSG_RETRIES); | |
218 | ||
219 | if (result >= 0 && rep_data[1] > 2) | |
220 | features->touch_max = rep_data[1]; | |
221 | ||
222 | kfree(rep_data); | |
223 | } | |
224 | } | |
225 | ||
428f8588 CB |
226 | /* |
227 | * Interface Descriptor of wacom devices can be incomplete and | |
228 | * inconsistent so wacom_features table is used to store stylus | |
229 | * device's packet lengths, various maximum values, and tablet | |
230 | * resolution based on product ID's. | |
231 | * | |
232 | * For devices that contain 2 interfaces, wacom_features table is | |
233 | * inaccurate for the touch interface. Since the Interface Descriptor | |
234 | * for touch interfaces has pretty complete data, this function exists | |
235 | * to query tablet for this missing information instead of hard coding in | |
236 | * an additional table. | |
237 | * | |
238 | * A typical Interface Descriptor for a stylus will contain a | |
239 | * boot mouse application collection that is not of interest and this | |
240 | * function will ignore it. | |
241 | * | |
242 | * It also contains a digitizer application collection that also is not | |
243 | * of interest since any information it contains would be duplicate | |
244 | * of what is in wacom_features. Usually it defines a report of an array | |
245 | * of bytes that could be used as max length of the stylus packet returned. | |
246 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
247 | * the X and Y logical values contain valid data but it is ignored. | |
248 | * | |
249 | * A typical Interface Descriptor for a touch interface will contain a | |
250 | * Digitizer-Finger Physical Collection which will define both logical | |
251 | * X/Y maximum as well as the physical size of tablet. Since touch | |
252 | * interfaces haven't supported pressure or distance, this is enough | |
253 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
254 | * |
255 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
256 | * Collection. Instead they define a Logical Collection with a single | |
257 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
258 | * |
259 | * Intuos5 touch interface does not contain useful data. We deal with | |
260 | * this after returning from this function. | |
428f8588 CB |
261 | */ |
262 | static int wacom_parse_hid(struct usb_interface *intf, | |
263 | struct hid_descriptor *hid_desc, | |
ec67bbed | 264 | struct wacom_features *features) |
545f4e99 PC |
265 | { |
266 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
267 | char limit = 0; |
268 | /* result has to be defined as int for some devices */ | |
269 | int result = 0; | |
545f4e99 PC |
270 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
271 | unsigned char *report; | |
272 | ||
273 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
274 | if (!report) | |
275 | return -ENOMEM; | |
276 | ||
277 | /* retrive report descriptors */ | |
278 | do { | |
279 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
280 | USB_REQ_GET_DESCRIPTOR, | |
281 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
282 | HID_DEVICET_REPORT << 8, | |
283 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
284 | report, | |
285 | hid_desc->wDescriptorLength, | |
286 | 5000); /* 5 secs */ | |
a417ea44 | 287 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 288 | |
384318ec | 289 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
290 | if (result < 0) |
291 | goto out; | |
292 | ||
293 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
294 | ||
295 | switch (report[i]) { | |
296 | case HID_USAGE_PAGE: | |
297 | switch (report[i + 1]) { | |
298 | case HID_USAGE_PAGE_DIGITIZER: | |
299 | usage = WCM_DIGITIZER; | |
300 | i++; | |
301 | break; | |
302 | ||
303 | case HID_USAGE_PAGE_DESKTOP: | |
304 | usage = WCM_DESKTOP; | |
305 | i++; | |
306 | break; | |
307 | } | |
308 | break; | |
309 | ||
310 | case HID_USAGE: | |
311 | switch (report[i + 1]) { | |
312 | case HID_USAGE_X: | |
313 | if (usage == WCM_DESKTOP) { | |
314 | if (finger) { | |
84eb5aa6 | 315 | features->device_type = BTN_TOOL_FINGER; |
ec67bbed PC |
316 | if (features->type == TABLETPC2FG) { |
317 | /* need to reset back */ | |
318 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
ec67bbed | 319 | } |
1963518b PC |
320 | |
321 | if (features->type == MTSCREEN) | |
322 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
323 | ||
4a88081e PC |
324 | if (features->type == BAMBOO_PT) { |
325 | /* need to reset back */ | |
326 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
4a88081e PC |
327 | features->x_phy = |
328 | get_unaligned_le16(&report[i + 5]); | |
329 | features->x_max = | |
330 | get_unaligned_le16(&report[i + 8]); | |
331 | i += 15; | |
332 | } else { | |
333 | features->x_max = | |
334 | get_unaligned_le16(&report[i + 3]); | |
335 | features->x_phy = | |
336 | get_unaligned_le16(&report[i + 6]); | |
337 | features->unit = report[i + 9]; | |
338 | features->unitExpo = report[i + 11]; | |
339 | i += 12; | |
340 | } | |
545f4e99 | 341 | } else if (pen) { |
ec67bbed PC |
342 | /* penabled only accepts exact bytes of data */ |
343 | if (features->type == TABLETPC2FG) | |
57e413d9 | 344 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 345 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 346 | features->x_max = |
252f7769 | 347 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
348 | i += 4; |
349 | } | |
545f4e99 PC |
350 | } |
351 | break; | |
352 | ||
353 | case HID_USAGE_Y: | |
ec67bbed PC |
354 | if (usage == WCM_DESKTOP) { |
355 | if (finger) { | |
1963518b PC |
356 | int type = features->type; |
357 | ||
358 | if (type == TABLETPC2FG || type == MTSCREEN) { | |
ec67bbed | 359 | features->y_max = |
252f7769 | 360 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 361 | features->y_phy = |
252f7769 | 362 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 363 | i += 7; |
1963518b | 364 | } else if (type == BAMBOO_PT) { |
4a88081e PC |
365 | features->y_phy = |
366 | get_unaligned_le16(&report[i + 3]); | |
367 | features->y_max = | |
368 | get_unaligned_le16(&report[i + 6]); | |
369 | i += 12; | |
ec67bbed PC |
370 | } else { |
371 | features->y_max = | |
372 | features->x_max; | |
373 | features->y_phy = | |
252f7769 | 374 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
375 | i += 4; |
376 | } | |
377 | } else if (pen) { | |
ec67bbed | 378 | features->y_max = |
252f7769 | 379 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
380 | i += 4; |
381 | } | |
382 | } | |
545f4e99 PC |
383 | break; |
384 | ||
385 | case HID_USAGE_FINGER: | |
386 | finger = 1; | |
387 | i++; | |
388 | break; | |
389 | ||
428f8588 CB |
390 | /* |
391 | * Requiring Stylus Usage will ignore boot mouse | |
392 | * X/Y values and some cases of invalid Digitizer X/Y | |
393 | * values commonly reported. | |
394 | */ | |
545f4e99 PC |
395 | case HID_USAGE_STYLUS: |
396 | pen = 1; | |
397 | i++; | |
398 | break; | |
f393ee2b PC |
399 | |
400 | case HID_USAGE_CONTACTMAX: | |
401 | wacom_retrieve_report_data(intf, features); | |
402 | i++; | |
403 | break; | |
545f4e99 PC |
404 | } |
405 | break; | |
406 | ||
4134361a | 407 | case HID_COLLECTION_END: |
ec67bbed | 408 | /* reset UsagePage and Finger */ |
545f4e99 PC |
409 | finger = usage = 0; |
410 | break; | |
4134361a CB |
411 | |
412 | case HID_COLLECTION: | |
413 | i++; | |
414 | switch (report[i]) { | |
415 | case HID_COLLECTION_LOGICAL: | |
416 | i += wacom_parse_logical_collection(&report[i], | |
417 | features); | |
418 | break; | |
419 | } | |
420 | break; | |
545f4e99 PC |
421 | } |
422 | } | |
423 | ||
545f4e99 | 424 | out: |
384318ec | 425 | result = 0; |
545f4e99 PC |
426 | kfree(report); |
427 | return result; | |
428 | } | |
429 | ||
ec67bbed | 430 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) |
3b7307c2 DT |
431 | { |
432 | unsigned char *rep_data; | |
ec67bbed PC |
433 | int limit = 0, report_id = 2; |
434 | int error = -ENOMEM; | |
3b7307c2 | 435 | |
3b48c91c | 436 | rep_data = kmalloc(4, GFP_KERNEL); |
3b7307c2 | 437 | if (!rep_data) |
ec67bbed PC |
438 | return error; |
439 | ||
1963518b PC |
440 | /* ask to report Wacom data */ |
441 | if (features->device_type == BTN_TOOL_FINGER) { | |
442 | /* if it is an MT Tablet PC touch */ | |
ea2e6024 | 443 | if (features->type > TABLETPC) { |
1963518b PC |
444 | do { |
445 | rep_data[0] = 3; | |
446 | rep_data[1] = 4; | |
447 | rep_data[2] = 0; | |
448 | rep_data[3] = 0; | |
449 | report_id = 3; | |
450 | error = wacom_set_report(intf, | |
451 | WAC_HID_FEATURE_REPORT, | |
452 | report_id, | |
453 | rep_data, 4, 1); | |
454 | if (error >= 0) | |
455 | error = wacom_get_report(intf, | |
456 | WAC_HID_FEATURE_REPORT, | |
457 | report_id, | |
458 | rep_data, 4, 1); | |
459 | } while ((error < 0 || rep_data[1] != 4) && | |
460 | limit++ < WAC_MSG_RETRIES); | |
461 | } | |
ea2e6024 | 462 | } else if (features->type <= BAMBOO_PT && |
d3825d51 | 463 | features->type != WIRELESS && |
6e8ec537 | 464 | features->device_type == BTN_TOOL_PEN) { |
ec67bbed PC |
465 | do { |
466 | rep_data[0] = 2; | |
467 | rep_data[1] = 2; | |
5d7e7d47 EH |
468 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
469 | report_id, rep_data, 2, 1); | |
ec67bbed | 470 | if (error >= 0) |
5d7e7d47 EH |
471 | error = wacom_get_report(intf, |
472 | WAC_HID_FEATURE_REPORT, | |
473 | report_id, rep_data, 2, 1); | |
a417ea44 | 474 | } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES); |
ec67bbed | 475 | } |
3b7307c2 DT |
476 | |
477 | kfree(rep_data); | |
478 | ||
479 | return error < 0 ? error : 0; | |
480 | } | |
481 | ||
ec67bbed | 482 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 483 | struct wacom_features *features) |
ec67bbed PC |
484 | { |
485 | int error = 0; | |
486 | struct usb_host_interface *interface = intf->cur_altsetting; | |
487 | struct hid_descriptor *hid_desc; | |
488 | ||
fed87e65 | 489 | /* default features */ |
ec67bbed | 490 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
491 | features->x_fuzz = 4; |
492 | features->y_fuzz = 4; | |
493 | features->pressure_fuzz = 0; | |
494 | features->distance_fuzz = 0; | |
ec67bbed | 495 | |
d3825d51 CB |
496 | /* |
497 | * The wireless device HID is basic and layout conflicts with | |
498 | * other tablets (monitor and touch interface can look like pen). | |
499 | * Skip the query for this type and modify defaults based on | |
500 | * interface number. | |
501 | */ | |
502 | if (features->type == WIRELESS) { | |
503 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
504 | features->device_type = 0; | |
505 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
506 | features->device_type = BTN_TOOL_DOUBLETAP; | |
507 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
508 | } | |
509 | } | |
510 | ||
1963518b | 511 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 512 | if (features->type < BAMBOO_PT) { |
ec67bbed | 513 | goto out; |
1963518b | 514 | } |
ec67bbed | 515 | |
a882c932 DT |
516 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
517 | if (error) { | |
518 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
519 | HID_DEVICET_REPORT, &hid_desc); | |
520 | if (error) { | |
eb71d1bb DT |
521 | dev_err(&intf->dev, |
522 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
523 | goto out; |
524 | } | |
525 | } | |
526 | error = wacom_parse_hid(intf, hid_desc, features); | |
527 | if (error) | |
528 | goto out; | |
529 | ||
ec67bbed PC |
530 | out: |
531 | return error; | |
532 | } | |
533 | ||
4492efff PC |
534 | struct wacom_usbdev_data { |
535 | struct list_head list; | |
536 | struct kref kref; | |
537 | struct usb_device *dev; | |
538 | struct wacom_shared shared; | |
539 | }; | |
540 | ||
541 | static LIST_HEAD(wacom_udev_list); | |
542 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
543 | ||
544 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) | |
545 | { | |
546 | struct wacom_usbdev_data *data; | |
547 | ||
548 | list_for_each_entry(data, &wacom_udev_list, list) { | |
549 | if (data->dev == dev) { | |
550 | kref_get(&data->kref); | |
551 | return data; | |
552 | } | |
553 | } | |
554 | ||
555 | return NULL; | |
556 | } | |
557 | ||
558 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
559 | struct usb_device *dev) | |
560 | { | |
561 | struct wacom_usbdev_data *data; | |
562 | int retval = 0; | |
563 | ||
564 | mutex_lock(&wacom_udev_list_lock); | |
565 | ||
566 | data = wacom_get_usbdev_data(dev); | |
567 | if (!data) { | |
568 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
569 | if (!data) { | |
570 | retval = -ENOMEM; | |
571 | goto out; | |
572 | } | |
573 | ||
574 | kref_init(&data->kref); | |
575 | data->dev = dev; | |
576 | list_add_tail(&data->list, &wacom_udev_list); | |
577 | } | |
578 | ||
579 | wacom->shared = &data->shared; | |
580 | ||
581 | out: | |
582 | mutex_unlock(&wacom_udev_list_lock); | |
583 | return retval; | |
584 | } | |
585 | ||
586 | static void wacom_release_shared_data(struct kref *kref) | |
587 | { | |
588 | struct wacom_usbdev_data *data = | |
589 | container_of(kref, struct wacom_usbdev_data, kref); | |
590 | ||
591 | mutex_lock(&wacom_udev_list_lock); | |
592 | list_del(&data->list); | |
593 | mutex_unlock(&wacom_udev_list_lock); | |
594 | ||
595 | kfree(data); | |
596 | } | |
597 | ||
598 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
599 | { | |
600 | struct wacom_usbdev_data *data; | |
601 | ||
602 | if (wacom->shared) { | |
603 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
604 | kref_put(&data->kref, wacom_release_shared_data); | |
605 | wacom->shared = NULL; | |
606 | } | |
607 | } | |
608 | ||
5d7e7d47 EH |
609 | static int wacom_led_control(struct wacom *wacom) |
610 | { | |
611 | unsigned char *buf; | |
9b5b95dd | 612 | int retval; |
5d7e7d47 EH |
613 | |
614 | buf = kzalloc(9, GFP_KERNEL); | |
615 | if (!buf) | |
616 | return -ENOMEM; | |
617 | ||
9b5b95dd JG |
618 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
619 | wacom->wacom_wac.features.type <= INTUOS5L) { | |
620 | /* | |
621 | * Touch Ring and crop mark LED luminance may take on | |
622 | * one of four values: | |
623 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
624 | */ | |
625 | int ring_led = wacom->led.select[0] & 0x03; | |
626 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
627 | int crop_lum = 0; | |
628 | ||
629 | buf[0] = WAC_CMD_LED_CONTROL; | |
630 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
631 | } | |
632 | else { | |
633 | int led = wacom->led.select[0] | 0x4; | |
634 | ||
635 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
636 | wacom->wacom_wac.features.type == WACOM_24HD) | |
637 | led |= (wacom->led.select[1] << 4) | 0x40; | |
638 | ||
639 | buf[0] = WAC_CMD_LED_CONTROL; | |
640 | buf[1] = led; | |
641 | buf[2] = wacom->led.llv; | |
642 | buf[3] = wacom->led.hlv; | |
643 | buf[4] = wacom->led.img_lum; | |
644 | } | |
5d7e7d47 EH |
645 | |
646 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
647 | buf, 9, WAC_CMD_RETRIES); | |
648 | kfree(buf); | |
649 | ||
650 | return retval; | |
651 | } | |
652 | ||
653 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
654 | { | |
655 | unsigned char *buf; | |
656 | int i, retval; | |
657 | ||
658 | buf = kzalloc(259, GFP_KERNEL); | |
659 | if (!buf) | |
660 | return -ENOMEM; | |
661 | ||
662 | /* Send 'start' command */ | |
663 | buf[0] = WAC_CMD_ICON_START; | |
664 | buf[1] = 1; | |
665 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
666 | buf, 2, WAC_CMD_RETRIES); | |
667 | if (retval < 0) | |
668 | goto out; | |
669 | ||
670 | buf[0] = WAC_CMD_ICON_XFER; | |
671 | buf[1] = button_id & 0x07; | |
672 | for (i = 0; i < 4; i++) { | |
673 | buf[2] = i; | |
674 | memcpy(buf + 3, img + i * 256, 256); | |
675 | ||
676 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
677 | buf, 259, WAC_CMD_RETRIES); | |
678 | if (retval < 0) | |
679 | break; | |
680 | } | |
681 | ||
682 | /* Send 'stop' */ | |
683 | buf[0] = WAC_CMD_ICON_START; | |
684 | buf[1] = 0; | |
685 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
686 | buf, 2, WAC_CMD_RETRIES); | |
687 | ||
688 | out: | |
689 | kfree(buf); | |
690 | return retval; | |
691 | } | |
692 | ||
09e7d941 | 693 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
694 | const char *buf, size_t count) |
695 | { | |
696 | struct wacom *wacom = dev_get_drvdata(dev); | |
697 | unsigned int id; | |
698 | int err; | |
699 | ||
700 | err = kstrtouint(buf, 10, &id); | |
701 | if (err) | |
702 | return err; | |
703 | ||
704 | mutex_lock(&wacom->lock); | |
705 | ||
09e7d941 | 706 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
707 | err = wacom_led_control(wacom); |
708 | ||
709 | mutex_unlock(&wacom->lock); | |
710 | ||
711 | return err < 0 ? err : count; | |
712 | } | |
713 | ||
09e7d941 PC |
714 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
715 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
716 | struct device_attribute *attr, const char *buf, size_t count) \ | |
717 | { \ | |
718 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
719 | } \ | |
04c59abd PC |
720 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
721 | struct device_attribute *attr, char *buf) \ | |
722 | { \ | |
723 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
724 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
725 | } \ | |
726 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
727 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
728 | wacom_led##SET_ID##_select_store) |
729 | ||
730 | DEVICE_LED_SELECT_ATTR(0); | |
731 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
732 | |
733 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
734 | const char *buf, size_t count) | |
735 | { | |
736 | unsigned int value; | |
737 | int err; | |
738 | ||
739 | err = kstrtouint(buf, 10, &value); | |
740 | if (err) | |
741 | return err; | |
742 | ||
743 | mutex_lock(&wacom->lock); | |
744 | ||
745 | *dest = value & 0x7f; | |
746 | err = wacom_led_control(wacom); | |
747 | ||
748 | mutex_unlock(&wacom->lock); | |
749 | ||
750 | return err < 0 ? err : count; | |
751 | } | |
752 | ||
753 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
754 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
755 | struct device_attribute *attr, const char *buf, size_t count) \ | |
756 | { \ | |
757 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
758 | \ | |
759 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
760 | buf, count); \ | |
761 | } \ | |
762 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
763 | NULL, wacom_##name##_luminance_store) | |
764 | ||
765 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
766 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
767 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
768 | ||
769 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
770 | const char *buf, size_t count) | |
771 | { | |
772 | struct wacom *wacom = dev_get_drvdata(dev); | |
773 | int err; | |
774 | ||
775 | if (count != 1024) | |
776 | return -EINVAL; | |
777 | ||
778 | mutex_lock(&wacom->lock); | |
779 | ||
780 | err = wacom_led_putimage(wacom, button_id, buf); | |
781 | ||
782 | mutex_unlock(&wacom->lock); | |
783 | ||
784 | return err < 0 ? err : count; | |
785 | } | |
786 | ||
787 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
788 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
789 | struct device_attribute *attr, const char *buf, size_t count) \ | |
790 | { \ | |
791 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
792 | } \ | |
793 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
794 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
795 | ||
796 | DEVICE_BTNIMG_ATTR(0); | |
797 | DEVICE_BTNIMG_ATTR(1); | |
798 | DEVICE_BTNIMG_ATTR(2); | |
799 | DEVICE_BTNIMG_ATTR(3); | |
800 | DEVICE_BTNIMG_ATTR(4); | |
801 | DEVICE_BTNIMG_ATTR(5); | |
802 | DEVICE_BTNIMG_ATTR(6); | |
803 | DEVICE_BTNIMG_ATTR(7); | |
804 | ||
09e7d941 PC |
805 | static struct attribute *cintiq_led_attrs[] = { |
806 | &dev_attr_status_led0_select.attr, | |
807 | &dev_attr_status_led1_select.attr, | |
808 | NULL | |
809 | }; | |
810 | ||
811 | static struct attribute_group cintiq_led_attr_group = { | |
812 | .name = "wacom_led", | |
813 | .attrs = cintiq_led_attrs, | |
814 | }; | |
815 | ||
816 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
817 | &dev_attr_status0_luminance.attr, |
818 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 819 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
820 | &dev_attr_buttons_luminance.attr, |
821 | &dev_attr_button0_rawimg.attr, | |
822 | &dev_attr_button1_rawimg.attr, | |
823 | &dev_attr_button2_rawimg.attr, | |
824 | &dev_attr_button3_rawimg.attr, | |
825 | &dev_attr_button4_rawimg.attr, | |
826 | &dev_attr_button5_rawimg.attr, | |
827 | &dev_attr_button6_rawimg.attr, | |
828 | &dev_attr_button7_rawimg.attr, | |
829 | NULL | |
830 | }; | |
831 | ||
09e7d941 | 832 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 833 | .name = "wacom_led", |
09e7d941 | 834 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
835 | }; |
836 | ||
9b5b95dd JG |
837 | static struct attribute *intuos5_led_attrs[] = { |
838 | &dev_attr_status0_luminance.attr, | |
839 | &dev_attr_status_led0_select.attr, | |
840 | NULL | |
841 | }; | |
842 | ||
843 | static struct attribute_group intuos5_led_attr_group = { | |
844 | .name = "wacom_led", | |
845 | .attrs = intuos5_led_attrs, | |
846 | }; | |
847 | ||
5d7e7d47 EH |
848 | static int wacom_initialize_leds(struct wacom *wacom) |
849 | { | |
850 | int error; | |
851 | ||
09e7d941 PC |
852 | /* Initialize default values */ |
853 | switch (wacom->wacom_wac.features.type) { | |
854 | case INTUOS4: | |
855 | case INTUOS4L: | |
856 | wacom->led.select[0] = 0; | |
857 | wacom->led.select[1] = 0; | |
f4fa9a6d | 858 | wacom->led.llv = 10; |
5d7e7d47 EH |
859 | wacom->led.hlv = 20; |
860 | wacom->led.img_lum = 10; | |
09e7d941 PC |
861 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
862 | &intuos4_led_attr_group); | |
863 | break; | |
864 | ||
246835fc | 865 | case WACOM_24HD: |
09e7d941 PC |
866 | case WACOM_21UX2: |
867 | wacom->led.select[0] = 0; | |
868 | wacom->led.select[1] = 0; | |
869 | wacom->led.llv = 0; | |
870 | wacom->led.hlv = 0; | |
871 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
872 | |
873 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
874 | &cintiq_led_attr_group); |
875 | break; | |
876 | ||
9b5b95dd JG |
877 | case INTUOS5S: |
878 | case INTUOS5: | |
879 | case INTUOS5L: | |
880 | wacom->led.select[0] = 0; | |
881 | wacom->led.select[1] = 0; | |
882 | wacom->led.llv = 32; | |
883 | wacom->led.hlv = 0; | |
884 | wacom->led.img_lum = 0; | |
885 | ||
886 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
887 | &intuos5_led_attr_group); | |
888 | break; | |
889 | ||
09e7d941 PC |
890 | default: |
891 | return 0; | |
5d7e7d47 EH |
892 | } |
893 | ||
09e7d941 PC |
894 | if (error) { |
895 | dev_err(&wacom->intf->dev, | |
896 | "cannot create sysfs group err: %d\n", error); | |
897 | return error; | |
898 | } | |
899 | wacom_led_control(wacom); | |
900 | ||
5d7e7d47 EH |
901 | return 0; |
902 | } | |
903 | ||
904 | static void wacom_destroy_leds(struct wacom *wacom) | |
905 | { | |
09e7d941 PC |
906 | switch (wacom->wacom_wac.features.type) { |
907 | case INTUOS4: | |
908 | case INTUOS4L: | |
5d7e7d47 | 909 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
910 | &intuos4_led_attr_group); |
911 | break; | |
912 | ||
246835fc | 913 | case WACOM_24HD: |
09e7d941 PC |
914 | case WACOM_21UX2: |
915 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
916 | &cintiq_led_attr_group); | |
917 | break; | |
9b5b95dd JG |
918 | |
919 | case INTUOS5S: | |
920 | case INTUOS5: | |
921 | case INTUOS5L: | |
922 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
923 | &intuos5_led_attr_group); | |
924 | break; | |
5d7e7d47 EH |
925 | } |
926 | } | |
927 | ||
a1d552cc CB |
928 | static enum power_supply_property wacom_battery_props[] = { |
929 | POWER_SUPPLY_PROP_CAPACITY | |
930 | }; | |
931 | ||
932 | static int wacom_battery_get_property(struct power_supply *psy, | |
933 | enum power_supply_property psp, | |
934 | union power_supply_propval *val) | |
935 | { | |
936 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
937 | int ret = 0; | |
938 | ||
939 | switch (psp) { | |
940 | case POWER_SUPPLY_PROP_CAPACITY: | |
941 | val->intval = | |
942 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
943 | break; | |
944 | default: | |
945 | ret = -EINVAL; | |
946 | break; | |
947 | } | |
948 | ||
949 | return ret; | |
950 | } | |
951 | ||
952 | static int wacom_initialize_battery(struct wacom *wacom) | |
953 | { | |
954 | int error = 0; | |
955 | ||
956 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
957 | wacom->battery.properties = wacom_battery_props; | |
958 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
959 | wacom->battery.get_property = wacom_battery_get_property; | |
960 | wacom->battery.name = "wacom_battery"; | |
961 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
962 | wacom->battery.use_for_apm = 0; | |
963 | ||
964 | error = power_supply_register(&wacom->usbdev->dev, | |
965 | &wacom->battery); | |
966 | } | |
967 | ||
968 | return error; | |
969 | } | |
970 | ||
971 | static void wacom_destroy_battery(struct wacom *wacom) | |
972 | { | |
973 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) | |
974 | power_supply_unregister(&wacom->battery); | |
975 | } | |
976 | ||
3aac0ef1 CB |
977 | static int wacom_register_input(struct wacom *wacom) |
978 | { | |
979 | struct input_dev *input_dev; | |
980 | struct usb_interface *intf = wacom->intf; | |
981 | struct usb_device *dev = interface_to_usbdev(intf); | |
982 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
983 | int error; | |
984 | ||
985 | input_dev = input_allocate_device(); | |
1963518b PC |
986 | if (!input_dev) { |
987 | error = -ENOMEM; | |
988 | goto fail1; | |
989 | } | |
3aac0ef1 CB |
990 | |
991 | input_dev->name = wacom_wac->name; | |
992 | input_dev->dev.parent = &intf->dev; | |
993 | input_dev->open = wacom_open; | |
994 | input_dev->close = wacom_close; | |
995 | usb_to_input_id(dev, &input_dev->id); | |
996 | input_set_drvdata(input_dev, wacom); | |
997 | ||
998 | wacom_wac->input = input_dev; | |
1963518b PC |
999 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1000 | if (error) | |
1001 | goto fail1; | |
3aac0ef1 CB |
1002 | |
1003 | error = input_register_device(input_dev); | |
1963518b PC |
1004 | if (error) |
1005 | goto fail2; | |
1006 | ||
1007 | return 0; | |
3aac0ef1 | 1008 | |
1963518b PC |
1009 | fail2: |
1010 | input_free_device(input_dev); | |
1011 | wacom_wac->input = NULL; | |
1012 | fail1: | |
3aac0ef1 CB |
1013 | return error; |
1014 | } | |
1015 | ||
16bf288c CB |
1016 | static void wacom_wireless_work(struct work_struct *work) |
1017 | { | |
1018 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1019 | struct usb_device *usbdev = wacom->usbdev; | |
1020 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
1021 | ||
1022 | /* | |
1023 | * Regardless if this is a disconnect or a new tablet, | |
1024 | * remove any existing input devices. | |
1025 | */ | |
1026 | ||
1027 | /* Stylus interface */ | |
1028 | wacom = usb_get_intfdata(usbdev->config->interface[1]); | |
1029 | if (wacom->wacom_wac.input) | |
1030 | input_unregister_device(wacom->wacom_wac.input); | |
0c9e300a | 1031 | wacom->wacom_wac.input = NULL; |
16bf288c CB |
1032 | |
1033 | /* Touch interface */ | |
1034 | wacom = usb_get_intfdata(usbdev->config->interface[2]); | |
1035 | if (wacom->wacom_wac.input) | |
1036 | input_unregister_device(wacom->wacom_wac.input); | |
0c9e300a | 1037 | wacom->wacom_wac.input = NULL; |
16bf288c CB |
1038 | |
1039 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1040 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1041 | } else { |
1042 | const struct usb_device_id *id = wacom_ids; | |
1043 | ||
eb71d1bb DT |
1044 | dev_info(&wacom->intf->dev, |
1045 | "wireless tablet connected with PID %x\n", | |
1046 | wacom_wac->pid); | |
16bf288c CB |
1047 | |
1048 | while (id->match_flags) { | |
1049 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1050 | id->idProduct == wacom_wac->pid) | |
1051 | break; | |
1052 | id++; | |
1053 | } | |
1054 | ||
1055 | if (!id->match_flags) { | |
eb71d1bb DT |
1056 | dev_info(&wacom->intf->dev, |
1057 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1058 | return; |
1059 | } | |
1060 | ||
1061 | /* Stylus interface */ | |
1062 | wacom = usb_get_intfdata(usbdev->config->interface[1]); | |
1063 | wacom_wac = &wacom->wacom_wac; | |
1064 | wacom_wac->features = | |
1065 | *((struct wacom_features *)id->driver_info); | |
1066 | wacom_wac->features.device_type = BTN_TOOL_PEN; | |
1067 | wacom_register_input(wacom); | |
1068 | ||
1069 | /* Touch interface */ | |
1070 | wacom = usb_get_intfdata(usbdev->config->interface[2]); | |
1071 | wacom_wac = &wacom->wacom_wac; | |
1072 | wacom_wac->features = | |
1073 | *((struct wacom_features *)id->driver_info); | |
1074 | wacom_wac->features.pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1075 | wacom_wac->features.device_type = BTN_TOOL_FINGER; | |
1076 | wacom_set_phy_from_res(&wacom_wac->features); | |
1077 | wacom_wac->features.x_max = wacom_wac->features.y_max = 4096; | |
1078 | wacom_register_input(wacom); | |
1079 | } | |
1080 | } | |
1081 | ||
3bea733a PC |
1082 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1083 | { | |
1084 | struct usb_device *dev = interface_to_usbdev(intf); | |
1085 | struct usb_endpoint_descriptor *endpoint; | |
1086 | struct wacom *wacom; | |
1087 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1088 | struct wacom_features *features; |
e33da8a5 | 1089 | int error; |
3bea733a | 1090 | |
e33da8a5 | 1091 | if (!id->driver_info) |
b036f6fb BB |
1092 | return -EINVAL; |
1093 | ||
3bea733a | 1094 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1095 | if (!wacom) |
1096 | return -ENOMEM; | |
e33da8a5 | 1097 | |
51269fe8 | 1098 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1099 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1100 | features = &wacom_wac->features; | |
1101 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1102 | error = -EINVAL; | |
3bea733a | 1103 | goto fail1; |
e33da8a5 | 1104 | } |
3bea733a | 1105 | |
997ea58e DM |
1106 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1107 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1108 | if (!wacom_wac->data) { |
1109 | error = -ENOMEM; | |
3bea733a | 1110 | goto fail1; |
e33da8a5 | 1111 | } |
3bea733a PC |
1112 | |
1113 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1114 | if (!wacom->irq) { |
1115 | error = -ENOMEM; | |
3bea733a | 1116 | goto fail2; |
e33da8a5 | 1117 | } |
3bea733a PC |
1118 | |
1119 | wacom->usbdev = dev; | |
e7224094 ON |
1120 | wacom->intf = intf; |
1121 | mutex_init(&wacom->lock); | |
16bf288c | 1122 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1123 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1124 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1125 | ||
545f4e99 PC |
1126 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1127 | ||
f393ee2b | 1128 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1129 | error = wacom_retrieve_hid_descriptor(intf, features); |
1130 | if (error) | |
4b6d4434 | 1131 | goto fail3; |
545f4e99 | 1132 | |
ae584ca4 JG |
1133 | /* |
1134 | * Intuos5 has no useful data about its touch interface in its | |
1135 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1136 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1137 | */ | |
1138 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { | |
1139 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { | |
1140 | features->device_type = BTN_TOOL_FINGER; | |
1141 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1142 | ||
1143 | features->x_phy = | |
1144 | (features->x_max * 100) / features->x_resolution; | |
1145 | features->y_phy = | |
1146 | (features->y_max * 100) / features->y_resolution; | |
1147 | ||
1148 | features->x_max = 4096; | |
1149 | features->y_max = 4096; | |
1150 | } else { | |
1151 | features->device_type = BTN_TOOL_PEN; | |
1152 | } | |
1153 | } | |
1154 | ||
bc73dd39 HR |
1155 | wacom_setup_device_quirks(features); |
1156 | ||
49b764ae PC |
1157 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1158 | ||
bc73dd39 | 1159 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
49b764ae PC |
1160 | /* Append the device type to the name */ |
1161 | strlcat(wacom_wac->name, | |
1162 | features->device_type == BTN_TOOL_PEN ? | |
1163 | " Pen" : " Finger", | |
1164 | sizeof(wacom_wac->name)); | |
4492efff PC |
1165 | |
1166 | error = wacom_add_shared_data(wacom_wac, dev); | |
1167 | if (error) | |
1168 | goto fail3; | |
49b764ae PC |
1169 | } |
1170 | ||
3bea733a PC |
1171 | usb_fill_int_urb(wacom->irq, dev, |
1172 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1173 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1174 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1175 | wacom->irq->transfer_dma = wacom->data_dma; |
1176 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1177 | ||
5d7e7d47 | 1178 | error = wacom_initialize_leds(wacom); |
5014186d | 1179 | if (error) |
4492efff | 1180 | goto fail4; |
3bea733a | 1181 | |
a1d552cc CB |
1182 | error = wacom_initialize_battery(wacom); |
1183 | if (error) | |
1184 | goto fail5; | |
1185 | ||
d3825d51 CB |
1186 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1187 | error = wacom_register_input(wacom); | |
1188 | if (error) | |
a1d552cc | 1189 | goto fail6; |
d3825d51 | 1190 | } |
5d7e7d47 | 1191 | |
ec67bbed PC |
1192 | /* Note that if query fails it is not a hard failure */ |
1193 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1194 | |
1195 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1196 | |
1197 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
1198 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) | |
1199 | goto fail5; | |
1200 | } | |
1201 | ||
3bea733a PC |
1202 | return 0; |
1203 | ||
a1d552cc | 1204 | fail6: wacom_destroy_battery(wacom); |
5d7e7d47 | 1205 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1206 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1207 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1208 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1209 | fail1: kfree(wacom); |
5014186d | 1210 | return error; |
3bea733a PC |
1211 | } |
1212 | ||
1213 | static void wacom_disconnect(struct usb_interface *intf) | |
1214 | { | |
e7224094 | 1215 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1216 | |
1217 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1218 | |
1219 | usb_kill_urb(wacom->irq); | |
16bf288c | 1220 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1221 | if (wacom->wacom_wac.input) |
1222 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1223 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1224 | wacom_destroy_leds(wacom); |
e7224094 | 1225 | usb_free_urb(wacom->irq); |
997ea58e | 1226 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1227 | wacom->wacom_wac.data, wacom->data_dma); |
1228 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1229 | kfree(wacom); |
1230 | } | |
1231 | ||
1232 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1233 | { | |
1234 | struct wacom *wacom = usb_get_intfdata(intf); | |
1235 | ||
1236 | mutex_lock(&wacom->lock); | |
1237 | usb_kill_urb(wacom->irq); | |
1238 | mutex_unlock(&wacom->lock); | |
1239 | ||
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | static int wacom_resume(struct usb_interface *intf) | |
1244 | { | |
1245 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1246 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1247 | int rv = 0; |
e7224094 ON |
1248 | |
1249 | mutex_lock(&wacom->lock); | |
38101475 PC |
1250 | |
1251 | /* switch to wacom mode first */ | |
1252 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1253 | wacom_led_control(wacom); |
38101475 | 1254 | |
d3825d51 CB |
1255 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
1256 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1257 | rv = -EIO; |
38101475 | 1258 | |
e7224094 ON |
1259 | mutex_unlock(&wacom->lock); |
1260 | ||
1261 | return rv; | |
1262 | } | |
1263 | ||
1264 | static int wacom_reset_resume(struct usb_interface *intf) | |
1265 | { | |
1266 | return wacom_resume(intf); | |
3bea733a PC |
1267 | } |
1268 | ||
1269 | static struct usb_driver wacom_driver = { | |
1270 | .name = "wacom", | |
b036f6fb | 1271 | .id_table = wacom_ids, |
3bea733a PC |
1272 | .probe = wacom_probe, |
1273 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1274 | .suspend = wacom_suspend, |
1275 | .resume = wacom_resume, | |
1276 | .reset_resume = wacom_reset_resume, | |
1277 | .supports_autosuspend = 1, | |
3bea733a PC |
1278 | }; |
1279 | ||
08642e7c | 1280 | module_usb_driver(wacom_driver); |