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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; | |
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 | ||
115d5e12 JG |
174 | /* |
175 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
176 | * This function is little more than hidinput_calc_abs_res stripped down. | |
177 | */ | |
178 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
179 | unsigned char unit, unsigned char exponent) | |
180 | { | |
181 | int prev, unit_exponent; | |
182 | ||
183 | /* Check if the extents are sane */ | |
184 | if (logical_extents <= 0 || physical_extents <= 0) | |
185 | return 0; | |
186 | ||
187 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
188 | unit_exponent = exponent; | |
189 | if (unit_exponent > 7) | |
190 | unit_exponent -= 16; | |
191 | ||
192 | /* Convert physical_extents to millimeters */ | |
193 | if (unit == 0x11) { /* If centimeters */ | |
194 | unit_exponent += 1; | |
195 | } else if (unit == 0x13) { /* If inches */ | |
196 | prev = physical_extents; | |
197 | physical_extents *= 254; | |
198 | if (physical_extents < prev) | |
199 | return 0; | |
200 | unit_exponent -= 1; | |
201 | } else { | |
202 | return 0; | |
203 | } | |
204 | ||
205 | /* Apply negative unit exponent */ | |
206 | for (; unit_exponent < 0; unit_exponent++) { | |
207 | prev = logical_extents; | |
208 | logical_extents *= 10; | |
209 | if (logical_extents < prev) | |
210 | return 0; | |
211 | } | |
212 | /* Apply positive unit exponent */ | |
213 | for (; unit_exponent > 0; unit_exponent--) { | |
214 | prev = physical_extents; | |
215 | physical_extents *= 10; | |
216 | if (physical_extents < prev) | |
217 | return 0; | |
218 | } | |
219 | ||
220 | /* Calculate resolution */ | |
221 | return logical_extents / physical_extents; | |
222 | } | |
223 | ||
4134361a CB |
224 | static int wacom_parse_logical_collection(unsigned char *report, |
225 | struct wacom_features *features) | |
226 | { | |
227 | int length = 0; | |
228 | ||
229 | if (features->type == BAMBOO_PT) { | |
230 | ||
231 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
232 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 233 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 234 | |
4134361a CB |
235 | features->x_max = features->y_max = |
236 | get_unaligned_le16(&report[10]); | |
237 | ||
238 | length = 11; | |
239 | } | |
240 | return length; | |
241 | } | |
242 | ||
f393ee2b PC |
243 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
244 | struct wacom_features *features) | |
245 | { | |
246 | int result = 0; | |
247 | unsigned char *rep_data; | |
248 | ||
249 | rep_data = kmalloc(2, GFP_KERNEL); | |
250 | if (rep_data) { | |
251 | ||
252 | rep_data[0] = 12; | |
253 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 254 | rep_data[0], rep_data, 2, |
f393ee2b PC |
255 | WAC_MSG_RETRIES); |
256 | ||
257 | if (result >= 0 && rep_data[1] > 2) | |
258 | features->touch_max = rep_data[1]; | |
259 | ||
260 | kfree(rep_data); | |
261 | } | |
262 | } | |
263 | ||
428f8588 CB |
264 | /* |
265 | * Interface Descriptor of wacom devices can be incomplete and | |
266 | * inconsistent so wacom_features table is used to store stylus | |
267 | * device's packet lengths, various maximum values, and tablet | |
268 | * resolution based on product ID's. | |
269 | * | |
270 | * For devices that contain 2 interfaces, wacom_features table is | |
271 | * inaccurate for the touch interface. Since the Interface Descriptor | |
272 | * for touch interfaces has pretty complete data, this function exists | |
273 | * to query tablet for this missing information instead of hard coding in | |
274 | * an additional table. | |
275 | * | |
276 | * A typical Interface Descriptor for a stylus will contain a | |
277 | * boot mouse application collection that is not of interest and this | |
278 | * function will ignore it. | |
279 | * | |
280 | * It also contains a digitizer application collection that also is not | |
281 | * of interest since any information it contains would be duplicate | |
282 | * of what is in wacom_features. Usually it defines a report of an array | |
283 | * of bytes that could be used as max length of the stylus packet returned. | |
284 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
285 | * the X and Y logical values contain valid data but it is ignored. | |
286 | * | |
287 | * A typical Interface Descriptor for a touch interface will contain a | |
288 | * Digitizer-Finger Physical Collection which will define both logical | |
289 | * X/Y maximum as well as the physical size of tablet. Since touch | |
290 | * interfaces haven't supported pressure or distance, this is enough | |
291 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
292 | * |
293 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
294 | * Collection. Instead they define a Logical Collection with a single | |
295 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
296 | * |
297 | * Intuos5 touch interface does not contain useful data. We deal with | |
298 | * this after returning from this function. | |
428f8588 CB |
299 | */ |
300 | static int wacom_parse_hid(struct usb_interface *intf, | |
301 | struct hid_descriptor *hid_desc, | |
ec67bbed | 302 | struct wacom_features *features) |
545f4e99 PC |
303 | { |
304 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
305 | char limit = 0; |
306 | /* result has to be defined as int for some devices */ | |
1d0d6df0 | 307 | int result = 0, touch_max = 0; |
545f4e99 PC |
308 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
309 | unsigned char *report; | |
310 | ||
311 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
312 | if (!report) | |
313 | return -ENOMEM; | |
314 | ||
315 | /* retrive report descriptors */ | |
316 | do { | |
317 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
318 | USB_REQ_GET_DESCRIPTOR, | |
319 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
320 | HID_DEVICET_REPORT << 8, | |
321 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
322 | report, | |
323 | hid_desc->wDescriptorLength, | |
324 | 5000); /* 5 secs */ | |
a417ea44 | 325 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 326 | |
384318ec | 327 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
328 | if (result < 0) |
329 | goto out; | |
330 | ||
331 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
332 | ||
333 | switch (report[i]) { | |
334 | case HID_USAGE_PAGE: | |
335 | switch (report[i + 1]) { | |
336 | case HID_USAGE_PAGE_DIGITIZER: | |
337 | usage = WCM_DIGITIZER; | |
338 | i++; | |
339 | break; | |
340 | ||
341 | case HID_USAGE_PAGE_DESKTOP: | |
342 | usage = WCM_DESKTOP; | |
343 | i++; | |
344 | break; | |
345 | } | |
346 | break; | |
347 | ||
348 | case HID_USAGE: | |
349 | switch (report[i + 1]) { | |
350 | case HID_USAGE_X: | |
351 | if (usage == WCM_DESKTOP) { | |
352 | if (finger) { | |
84eb5aa6 | 353 | features->device_type = BTN_TOOL_FINGER; |
1d0d6df0 PC |
354 | /* touch device at least supports one touch point */ |
355 | touch_max = 1; | |
3699dd7e PC |
356 | switch (features->type) { |
357 | case TABLETPC2FG: | |
ec67bbed | 358 | features->pktlen = WACOM_PKGLEN_TPC2FG; |
3699dd7e | 359 | break; |
1963518b | 360 | |
3699dd7e PC |
361 | case MTSCREEN: |
362 | case WACOM_24HDT: | |
1963518b | 363 | features->pktlen = WACOM_PKGLEN_MTOUCH; |
3699dd7e | 364 | break; |
1963518b | 365 | |
6afdc289 PC |
366 | case MTTPC: |
367 | features->pktlen = WACOM_PKGLEN_MTTPC; | |
368 | break; | |
369 | ||
3699dd7e | 370 | case BAMBOO_PT: |
4a88081e | 371 | features->pktlen = WACOM_PKGLEN_BBTOUCH; |
3699dd7e PC |
372 | break; |
373 | ||
374 | default: | |
375 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
376 | break; | |
377 | } | |
378 | ||
379 | switch (features->type) { | |
380 | case BAMBOO_PT: | |
4a88081e PC |
381 | features->x_phy = |
382 | get_unaligned_le16(&report[i + 5]); | |
383 | features->x_max = | |
384 | get_unaligned_le16(&report[i + 8]); | |
385 | i += 15; | |
3699dd7e PC |
386 | break; |
387 | ||
388 | case WACOM_24HDT: | |
b1e4279e JG |
389 | features->x_max = |
390 | get_unaligned_le16(&report[i + 3]); | |
391 | features->x_phy = | |
392 | get_unaligned_le16(&report[i + 8]); | |
393 | features->unit = report[i - 1]; | |
394 | features->unitExpo = report[i - 3]; | |
395 | i += 12; | |
3699dd7e PC |
396 | break; |
397 | ||
398 | default: | |
4a88081e PC |
399 | features->x_max = |
400 | get_unaligned_le16(&report[i + 3]); | |
401 | features->x_phy = | |
402 | get_unaligned_le16(&report[i + 6]); | |
403 | features->unit = report[i + 9]; | |
404 | features->unitExpo = report[i + 11]; | |
405 | i += 12; | |
3699dd7e | 406 | break; |
4a88081e | 407 | } |
545f4e99 | 408 | } else if (pen) { |
ec67bbed | 409 | /* penabled only accepts exact bytes of data */ |
3699dd7e | 410 | if (features->type >= TABLETPC) |
57e413d9 | 411 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 412 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 413 | features->x_max = |
252f7769 | 414 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
415 | i += 4; |
416 | } | |
545f4e99 PC |
417 | } |
418 | break; | |
419 | ||
420 | case HID_USAGE_Y: | |
ec67bbed PC |
421 | if (usage == WCM_DESKTOP) { |
422 | if (finger) { | |
3699dd7e PC |
423 | switch (features->type) { |
424 | case TABLETPC2FG: | |
425 | case MTSCREEN: | |
6afdc289 | 426 | case MTTPC: |
ec67bbed | 427 | features->y_max = |
252f7769 | 428 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 429 | features->y_phy = |
252f7769 | 430 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 431 | i += 7; |
3699dd7e PC |
432 | break; |
433 | ||
434 | case WACOM_24HDT: | |
b1e4279e JG |
435 | features->y_max = |
436 | get_unaligned_le16(&report[i + 3]); | |
437 | features->y_phy = | |
438 | get_unaligned_le16(&report[i - 2]); | |
439 | i += 7; | |
3699dd7e PC |
440 | break; |
441 | ||
442 | case BAMBOO_PT: | |
4a88081e PC |
443 | features->y_phy = |
444 | get_unaligned_le16(&report[i + 3]); | |
445 | features->y_max = | |
446 | get_unaligned_le16(&report[i + 6]); | |
447 | i += 12; | |
3699dd7e PC |
448 | break; |
449 | ||
450 | default: | |
ec67bbed PC |
451 | features->y_max = |
452 | features->x_max; | |
453 | features->y_phy = | |
252f7769 | 454 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 455 | i += 4; |
3699dd7e | 456 | break; |
ec67bbed PC |
457 | } |
458 | } else if (pen) { | |
ec67bbed | 459 | features->y_max = |
252f7769 | 460 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
461 | i += 4; |
462 | } | |
463 | } | |
545f4e99 PC |
464 | break; |
465 | ||
466 | case HID_USAGE_FINGER: | |
467 | finger = 1; | |
468 | i++; | |
469 | break; | |
470 | ||
428f8588 CB |
471 | /* |
472 | * Requiring Stylus Usage will ignore boot mouse | |
473 | * X/Y values and some cases of invalid Digitizer X/Y | |
474 | * values commonly reported. | |
475 | */ | |
545f4e99 PC |
476 | case HID_USAGE_STYLUS: |
477 | pen = 1; | |
478 | i++; | |
479 | break; | |
f393ee2b PC |
480 | |
481 | case HID_USAGE_CONTACTMAX: | |
1cecc5cc PC |
482 | /* leave touch_max as is if predefined */ |
483 | if (!features->touch_max) | |
484 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
485 | i++; |
486 | break; | |
545f4e99 PC |
487 | } |
488 | break; | |
489 | ||
4134361a | 490 | case HID_COLLECTION_END: |
ec67bbed | 491 | /* reset UsagePage and Finger */ |
545f4e99 PC |
492 | finger = usage = 0; |
493 | break; | |
4134361a CB |
494 | |
495 | case HID_COLLECTION: | |
496 | i++; | |
497 | switch (report[i]) { | |
498 | case HID_COLLECTION_LOGICAL: | |
499 | i += wacom_parse_logical_collection(&report[i], | |
500 | features); | |
501 | break; | |
502 | } | |
503 | break; | |
545f4e99 PC |
504 | } |
505 | } | |
506 | ||
545f4e99 | 507 | out: |
1d0d6df0 PC |
508 | if (!features->touch_max && touch_max) |
509 | features->touch_max = touch_max; | |
384318ec | 510 | result = 0; |
545f4e99 PC |
511 | kfree(report); |
512 | return result; | |
513 | } | |
514 | ||
fe494bc2 | 515 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
516 | { |
517 | unsigned char *rep_data; | |
fe494bc2 | 518 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 519 | |
fe494bc2 | 520 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 521 | if (!rep_data) |
ec67bbed PC |
522 | return error; |
523 | ||
fe494bc2 | 524 | do { |
9937c026 CB |
525 | rep_data[0] = report_id; |
526 | rep_data[1] = mode; | |
527 | ||
fe494bc2 JG |
528 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
529 | report_id, rep_data, length, 1); | |
fe494bc2 JG |
530 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
531 | ||
532 | kfree(rep_data); | |
533 | ||
534 | return error < 0 ? error : 0; | |
535 | } | |
536 | ||
537 | /* | |
538 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
539 | * typically configured to power-up in a mode which sends mouse-like | |
540 | * reports to the OS. To get absolute position, pressure data, etc. | |
541 | * from the tablet, it is necessary to switch the tablet out of this | |
542 | * mode and into one which sends the full range of tablet data. | |
543 | */ | |
544 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
545 | { | |
1963518b | 546 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 547 | if (features->type > TABLETPC) { |
fe494bc2 JG |
548 | /* MT Tablet PC touch */ |
549 | return wacom_set_device_mode(intf, 3, 4, 4); | |
550 | } | |
36d3c510 | 551 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
b1e4279e JG |
552 | return wacom_set_device_mode(intf, 18, 3, 2); |
553 | } | |
fe494bc2 JG |
554 | } else if (features->device_type == BTN_TOOL_PEN) { |
555 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
556 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 557 | } |
ec67bbed | 558 | } |
3b7307c2 | 559 | |
fe494bc2 | 560 | return 0; |
3b7307c2 DT |
561 | } |
562 | ||
ec67bbed | 563 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 564 | struct wacom_features *features) |
ec67bbed PC |
565 | { |
566 | int error = 0; | |
567 | struct usb_host_interface *interface = intf->cur_altsetting; | |
568 | struct hid_descriptor *hid_desc; | |
569 | ||
fed87e65 | 570 | /* default features */ |
ec67bbed | 571 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
572 | features->x_fuzz = 4; |
573 | features->y_fuzz = 4; | |
574 | features->pressure_fuzz = 0; | |
575 | features->distance_fuzz = 0; | |
ec67bbed | 576 | |
d3825d51 CB |
577 | /* |
578 | * The wireless device HID is basic and layout conflicts with | |
579 | * other tablets (monitor and touch interface can look like pen). | |
580 | * Skip the query for this type and modify defaults based on | |
581 | * interface number. | |
582 | */ | |
583 | if (features->type == WIRELESS) { | |
584 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
585 | features->device_type = 0; | |
586 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 587 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
588 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
589 | } | |
590 | } | |
591 | ||
1963518b | 592 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 593 | if (features->type < BAMBOO_PT) { |
ec67bbed | 594 | goto out; |
1963518b | 595 | } |
ec67bbed | 596 | |
a882c932 DT |
597 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
598 | if (error) { | |
599 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
600 | HID_DEVICET_REPORT, &hid_desc); | |
601 | if (error) { | |
eb71d1bb DT |
602 | dev_err(&intf->dev, |
603 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
604 | goto out; |
605 | } | |
606 | } | |
607 | error = wacom_parse_hid(intf, hid_desc, features); | |
ec67bbed | 608 | |
ec67bbed PC |
609 | out: |
610 | return error; | |
611 | } | |
612 | ||
4492efff PC |
613 | struct wacom_usbdev_data { |
614 | struct list_head list; | |
615 | struct kref kref; | |
616 | struct usb_device *dev; | |
617 | struct wacom_shared shared; | |
618 | }; | |
619 | ||
620 | static LIST_HEAD(wacom_udev_list); | |
621 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
622 | ||
aea2bf6a JG |
623 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
624 | { | |
625 | int port1; | |
626 | struct usb_device *sibling; | |
627 | ||
628 | if (vendor == 0 && product == 0) | |
629 | return dev; | |
630 | ||
631 | if (dev->parent == NULL) | |
632 | return NULL; | |
633 | ||
634 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
635 | struct usb_device_descriptor *d; | |
636 | if (sibling == NULL) | |
637 | continue; | |
638 | ||
639 | d = &sibling->descriptor; | |
640 | if (d->idVendor == vendor && d->idProduct == product) | |
641 | return sibling; | |
642 | } | |
643 | ||
644 | return NULL; | |
645 | } | |
646 | ||
4492efff PC |
647 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
648 | { | |
649 | struct wacom_usbdev_data *data; | |
650 | ||
651 | list_for_each_entry(data, &wacom_udev_list, list) { | |
652 | if (data->dev == dev) { | |
653 | kref_get(&data->kref); | |
654 | return data; | |
655 | } | |
656 | } | |
657 | ||
658 | return NULL; | |
659 | } | |
660 | ||
661 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
662 | struct usb_device *dev) | |
663 | { | |
664 | struct wacom_usbdev_data *data; | |
665 | int retval = 0; | |
666 | ||
667 | mutex_lock(&wacom_udev_list_lock); | |
668 | ||
669 | data = wacom_get_usbdev_data(dev); | |
670 | if (!data) { | |
671 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
672 | if (!data) { | |
673 | retval = -ENOMEM; | |
674 | goto out; | |
675 | } | |
676 | ||
677 | kref_init(&data->kref); | |
678 | data->dev = dev; | |
679 | list_add_tail(&data->list, &wacom_udev_list); | |
680 | } | |
681 | ||
682 | wacom->shared = &data->shared; | |
683 | ||
684 | out: | |
685 | mutex_unlock(&wacom_udev_list_lock); | |
686 | return retval; | |
687 | } | |
688 | ||
689 | static void wacom_release_shared_data(struct kref *kref) | |
690 | { | |
691 | struct wacom_usbdev_data *data = | |
692 | container_of(kref, struct wacom_usbdev_data, kref); | |
693 | ||
694 | mutex_lock(&wacom_udev_list_lock); | |
695 | list_del(&data->list); | |
696 | mutex_unlock(&wacom_udev_list_lock); | |
697 | ||
698 | kfree(data); | |
699 | } | |
700 | ||
701 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
702 | { | |
703 | struct wacom_usbdev_data *data; | |
704 | ||
705 | if (wacom->shared) { | |
706 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
707 | kref_put(&data->kref, wacom_release_shared_data); | |
708 | wacom->shared = NULL; | |
709 | } | |
710 | } | |
711 | ||
5d7e7d47 EH |
712 | static int wacom_led_control(struct wacom *wacom) |
713 | { | |
714 | unsigned char *buf; | |
9b5b95dd | 715 | int retval; |
5d7e7d47 EH |
716 | |
717 | buf = kzalloc(9, GFP_KERNEL); | |
718 | if (!buf) | |
719 | return -ENOMEM; | |
720 | ||
9b5b95dd | 721 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 722 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
723 | /* |
724 | * Touch Ring and crop mark LED luminance may take on | |
725 | * one of four values: | |
726 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
727 | */ | |
728 | int ring_led = wacom->led.select[0] & 0x03; | |
729 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
730 | int crop_lum = 0; | |
731 | ||
732 | buf[0] = WAC_CMD_LED_CONTROL; | |
733 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
734 | } | |
735 | else { | |
736 | int led = wacom->led.select[0] | 0x4; | |
737 | ||
738 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
739 | wacom->wacom_wac.features.type == WACOM_24HD) | |
740 | led |= (wacom->led.select[1] << 4) | 0x40; | |
741 | ||
742 | buf[0] = WAC_CMD_LED_CONTROL; | |
743 | buf[1] = led; | |
744 | buf[2] = wacom->led.llv; | |
745 | buf[3] = wacom->led.hlv; | |
746 | buf[4] = wacom->led.img_lum; | |
747 | } | |
5d7e7d47 EH |
748 | |
749 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
750 | buf, 9, WAC_CMD_RETRIES); | |
751 | kfree(buf); | |
752 | ||
753 | return retval; | |
754 | } | |
755 | ||
756 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
757 | { | |
758 | unsigned char *buf; | |
759 | int i, retval; | |
760 | ||
761 | buf = kzalloc(259, GFP_KERNEL); | |
762 | if (!buf) | |
763 | return -ENOMEM; | |
764 | ||
765 | /* Send 'start' command */ | |
766 | buf[0] = WAC_CMD_ICON_START; | |
767 | buf[1] = 1; | |
768 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
769 | buf, 2, WAC_CMD_RETRIES); | |
770 | if (retval < 0) | |
771 | goto out; | |
772 | ||
773 | buf[0] = WAC_CMD_ICON_XFER; | |
774 | buf[1] = button_id & 0x07; | |
775 | for (i = 0; i < 4; i++) { | |
776 | buf[2] = i; | |
777 | memcpy(buf + 3, img + i * 256, 256); | |
778 | ||
779 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
780 | buf, 259, WAC_CMD_RETRIES); | |
781 | if (retval < 0) | |
782 | break; | |
783 | } | |
784 | ||
785 | /* Send 'stop' */ | |
786 | buf[0] = WAC_CMD_ICON_START; | |
787 | buf[1] = 0; | |
788 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
789 | buf, 2, WAC_CMD_RETRIES); | |
790 | ||
791 | out: | |
792 | kfree(buf); | |
793 | return retval; | |
794 | } | |
795 | ||
09e7d941 | 796 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
797 | const char *buf, size_t count) |
798 | { | |
799 | struct wacom *wacom = dev_get_drvdata(dev); | |
800 | unsigned int id; | |
801 | int err; | |
802 | ||
803 | err = kstrtouint(buf, 10, &id); | |
804 | if (err) | |
805 | return err; | |
806 | ||
807 | mutex_lock(&wacom->lock); | |
808 | ||
09e7d941 | 809 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
810 | err = wacom_led_control(wacom); |
811 | ||
812 | mutex_unlock(&wacom->lock); | |
813 | ||
814 | return err < 0 ? err : count; | |
815 | } | |
816 | ||
09e7d941 PC |
817 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
818 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
819 | struct device_attribute *attr, const char *buf, size_t count) \ | |
820 | { \ | |
821 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
822 | } \ | |
04c59abd PC |
823 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
824 | struct device_attribute *attr, char *buf) \ | |
825 | { \ | |
826 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
827 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
828 | } \ | |
829 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
830 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
831 | wacom_led##SET_ID##_select_store) |
832 | ||
833 | DEVICE_LED_SELECT_ATTR(0); | |
834 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
835 | |
836 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
837 | const char *buf, size_t count) | |
838 | { | |
839 | unsigned int value; | |
840 | int err; | |
841 | ||
842 | err = kstrtouint(buf, 10, &value); | |
843 | if (err) | |
844 | return err; | |
845 | ||
846 | mutex_lock(&wacom->lock); | |
847 | ||
848 | *dest = value & 0x7f; | |
849 | err = wacom_led_control(wacom); | |
850 | ||
851 | mutex_unlock(&wacom->lock); | |
852 | ||
853 | return err < 0 ? err : count; | |
854 | } | |
855 | ||
856 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
857 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
858 | struct device_attribute *attr, const char *buf, size_t count) \ | |
859 | { \ | |
860 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
861 | \ | |
862 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
863 | buf, count); \ | |
864 | } \ | |
865 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
866 | NULL, wacom_##name##_luminance_store) | |
867 | ||
868 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
869 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
870 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
871 | ||
872 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
873 | const char *buf, size_t count) | |
874 | { | |
875 | struct wacom *wacom = dev_get_drvdata(dev); | |
876 | int err; | |
877 | ||
878 | if (count != 1024) | |
879 | return -EINVAL; | |
880 | ||
881 | mutex_lock(&wacom->lock); | |
882 | ||
883 | err = wacom_led_putimage(wacom, button_id, buf); | |
884 | ||
885 | mutex_unlock(&wacom->lock); | |
886 | ||
887 | return err < 0 ? err : count; | |
888 | } | |
889 | ||
890 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
891 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
892 | struct device_attribute *attr, const char *buf, size_t count) \ | |
893 | { \ | |
894 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
895 | } \ | |
896 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
897 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
898 | ||
899 | DEVICE_BTNIMG_ATTR(0); | |
900 | DEVICE_BTNIMG_ATTR(1); | |
901 | DEVICE_BTNIMG_ATTR(2); | |
902 | DEVICE_BTNIMG_ATTR(3); | |
903 | DEVICE_BTNIMG_ATTR(4); | |
904 | DEVICE_BTNIMG_ATTR(5); | |
905 | DEVICE_BTNIMG_ATTR(6); | |
906 | DEVICE_BTNIMG_ATTR(7); | |
907 | ||
09e7d941 PC |
908 | static struct attribute *cintiq_led_attrs[] = { |
909 | &dev_attr_status_led0_select.attr, | |
910 | &dev_attr_status_led1_select.attr, | |
911 | NULL | |
912 | }; | |
913 | ||
914 | static struct attribute_group cintiq_led_attr_group = { | |
915 | .name = "wacom_led", | |
916 | .attrs = cintiq_led_attrs, | |
917 | }; | |
918 | ||
919 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
920 | &dev_attr_status0_luminance.attr, |
921 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 922 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
923 | &dev_attr_buttons_luminance.attr, |
924 | &dev_attr_button0_rawimg.attr, | |
925 | &dev_attr_button1_rawimg.attr, | |
926 | &dev_attr_button2_rawimg.attr, | |
927 | &dev_attr_button3_rawimg.attr, | |
928 | &dev_attr_button4_rawimg.attr, | |
929 | &dev_attr_button5_rawimg.attr, | |
930 | &dev_attr_button6_rawimg.attr, | |
931 | &dev_attr_button7_rawimg.attr, | |
932 | NULL | |
933 | }; | |
934 | ||
09e7d941 | 935 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 936 | .name = "wacom_led", |
09e7d941 | 937 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
938 | }; |
939 | ||
9b5b95dd JG |
940 | static struct attribute *intuos5_led_attrs[] = { |
941 | &dev_attr_status0_luminance.attr, | |
942 | &dev_attr_status_led0_select.attr, | |
943 | NULL | |
944 | }; | |
945 | ||
946 | static struct attribute_group intuos5_led_attr_group = { | |
947 | .name = "wacom_led", | |
948 | .attrs = intuos5_led_attrs, | |
949 | }; | |
950 | ||
5d7e7d47 EH |
951 | static int wacom_initialize_leds(struct wacom *wacom) |
952 | { | |
953 | int error; | |
954 | ||
09e7d941 PC |
955 | /* Initialize default values */ |
956 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 957 | case INTUOS4S: |
09e7d941 PC |
958 | case INTUOS4: |
959 | case INTUOS4L: | |
960 | wacom->led.select[0] = 0; | |
961 | wacom->led.select[1] = 0; | |
f4fa9a6d | 962 | wacom->led.llv = 10; |
5d7e7d47 EH |
963 | wacom->led.hlv = 20; |
964 | wacom->led.img_lum = 10; | |
09e7d941 PC |
965 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
966 | &intuos4_led_attr_group); | |
967 | break; | |
968 | ||
246835fc | 969 | case WACOM_24HD: |
09e7d941 PC |
970 | case WACOM_21UX2: |
971 | wacom->led.select[0] = 0; | |
972 | wacom->led.select[1] = 0; | |
973 | wacom->led.llv = 0; | |
974 | wacom->led.hlv = 0; | |
975 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
976 | |
977 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
978 | &cintiq_led_attr_group); |
979 | break; | |
980 | ||
9b5b95dd JG |
981 | case INTUOS5S: |
982 | case INTUOS5: | |
983 | case INTUOS5L: | |
9a35c411 PC |
984 | case INTUOSPS: |
985 | case INTUOSPM: | |
986 | case INTUOSPL: | |
c2b0c273 PC |
987 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
988 | wacom->led.select[0] = 0; | |
989 | wacom->led.select[1] = 0; | |
990 | wacom->led.llv = 32; | |
991 | wacom->led.hlv = 0; | |
992 | wacom->led.img_lum = 0; | |
993 | ||
994 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
995 | &intuos5_led_attr_group); | |
996 | } else | |
997 | return 0; | |
9b5b95dd JG |
998 | break; |
999 | ||
09e7d941 PC |
1000 | default: |
1001 | return 0; | |
5d7e7d47 EH |
1002 | } |
1003 | ||
09e7d941 PC |
1004 | if (error) { |
1005 | dev_err(&wacom->intf->dev, | |
1006 | "cannot create sysfs group err: %d\n", error); | |
1007 | return error; | |
1008 | } | |
1009 | wacom_led_control(wacom); | |
1010 | ||
5d7e7d47 EH |
1011 | return 0; |
1012 | } | |
1013 | ||
1014 | static void wacom_destroy_leds(struct wacom *wacom) | |
1015 | { | |
09e7d941 | 1016 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 1017 | case INTUOS4S: |
09e7d941 PC |
1018 | case INTUOS4: |
1019 | case INTUOS4L: | |
5d7e7d47 | 1020 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
1021 | &intuos4_led_attr_group); |
1022 | break; | |
1023 | ||
246835fc | 1024 | case WACOM_24HD: |
09e7d941 PC |
1025 | case WACOM_21UX2: |
1026 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1027 | &cintiq_led_attr_group); | |
1028 | break; | |
9b5b95dd JG |
1029 | |
1030 | case INTUOS5S: | |
1031 | case INTUOS5: | |
1032 | case INTUOS5L: | |
9a35c411 PC |
1033 | case INTUOSPS: |
1034 | case INTUOSPM: | |
1035 | case INTUOSPL: | |
c2b0c273 PC |
1036 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
1037 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1038 | &intuos5_led_attr_group); | |
9b5b95dd | 1039 | break; |
5d7e7d47 EH |
1040 | } |
1041 | } | |
1042 | ||
a1d552cc | 1043 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 1044 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1045 | POWER_SUPPLY_PROP_CAPACITY |
1046 | }; | |
1047 | ||
1048 | static int wacom_battery_get_property(struct power_supply *psy, | |
1049 | enum power_supply_property psp, | |
1050 | union power_supply_propval *val) | |
1051 | { | |
1052 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1053 | int ret = 0; | |
1054 | ||
1055 | switch (psp) { | |
6e2a6e80 BN |
1056 | case POWER_SUPPLY_PROP_SCOPE: |
1057 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1058 | break; | |
a1d552cc CB |
1059 | case POWER_SUPPLY_PROP_CAPACITY: |
1060 | val->intval = | |
1061 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1062 | break; | |
1063 | default: | |
1064 | ret = -EINVAL; | |
1065 | break; | |
1066 | } | |
1067 | ||
1068 | return ret; | |
1069 | } | |
1070 | ||
1071 | static int wacom_initialize_battery(struct wacom *wacom) | |
1072 | { | |
1073 | int error = 0; | |
1074 | ||
1075 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1076 | wacom->battery.properties = wacom_battery_props; | |
1077 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1078 | wacom->battery.get_property = wacom_battery_get_property; | |
1079 | wacom->battery.name = "wacom_battery"; | |
1080 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1081 | wacom->battery.use_for_apm = 0; | |
1082 | ||
1083 | error = power_supply_register(&wacom->usbdev->dev, | |
1084 | &wacom->battery); | |
b7af2bb8 CB |
1085 | |
1086 | if (!error) | |
1087 | power_supply_powers(&wacom->battery, | |
1088 | &wacom->usbdev->dev); | |
a1d552cc CB |
1089 | } |
1090 | ||
1091 | return error; | |
1092 | } | |
1093 | ||
1094 | static void wacom_destroy_battery(struct wacom *wacom) | |
1095 | { | |
b7af2bb8 CB |
1096 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1097 | wacom->battery.dev) { | |
a1d552cc | 1098 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1099 | wacom->battery.dev = NULL; |
1100 | } | |
a1d552cc CB |
1101 | } |
1102 | ||
3aac0ef1 CB |
1103 | static int wacom_register_input(struct wacom *wacom) |
1104 | { | |
1105 | struct input_dev *input_dev; | |
1106 | struct usb_interface *intf = wacom->intf; | |
1107 | struct usb_device *dev = interface_to_usbdev(intf); | |
1108 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1109 | int error; | |
1110 | ||
1111 | input_dev = input_allocate_device(); | |
1963518b PC |
1112 | if (!input_dev) { |
1113 | error = -ENOMEM; | |
1114 | goto fail1; | |
1115 | } | |
3aac0ef1 CB |
1116 | |
1117 | input_dev->name = wacom_wac->name; | |
1118 | input_dev->dev.parent = &intf->dev; | |
1119 | input_dev->open = wacom_open; | |
1120 | input_dev->close = wacom_close; | |
1121 | usb_to_input_id(dev, &input_dev->id); | |
1122 | input_set_drvdata(input_dev, wacom); | |
1123 | ||
1124 | wacom_wac->input = input_dev; | |
1963518b PC |
1125 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1126 | if (error) | |
1127 | goto fail1; | |
3aac0ef1 CB |
1128 | |
1129 | error = input_register_device(input_dev); | |
1963518b PC |
1130 | if (error) |
1131 | goto fail2; | |
1132 | ||
1133 | return 0; | |
3aac0ef1 | 1134 | |
1963518b PC |
1135 | fail2: |
1136 | input_free_device(input_dev); | |
1137 | wacom_wac->input = NULL; | |
1138 | fail1: | |
3aac0ef1 CB |
1139 | return error; |
1140 | } | |
1141 | ||
16bf288c CB |
1142 | static void wacom_wireless_work(struct work_struct *work) |
1143 | { | |
1144 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1145 | struct usb_device *usbdev = wacom->usbdev; | |
1146 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1147 | struct wacom *wacom1, *wacom2; |
1148 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1149 | int error; | |
16bf288c CB |
1150 | |
1151 | /* | |
1152 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1153 | * remove any existing input and battery devices. |
16bf288c CB |
1154 | */ |
1155 | ||
b7af2bb8 CB |
1156 | wacom_destroy_battery(wacom); |
1157 | ||
16bf288c | 1158 | /* Stylus interface */ |
b7af2bb8 CB |
1159 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1160 | wacom_wac1 = &(wacom1->wacom_wac); | |
1161 | if (wacom_wac1->input) | |
1162 | input_unregister_device(wacom_wac1->input); | |
1163 | wacom_wac1->input = NULL; | |
16bf288c CB |
1164 | |
1165 | /* Touch interface */ | |
b7af2bb8 CB |
1166 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1167 | wacom_wac2 = &(wacom2->wacom_wac); | |
1168 | if (wacom_wac2->input) | |
1169 | input_unregister_device(wacom_wac2->input); | |
1170 | wacom_wac2->input = NULL; | |
16bf288c CB |
1171 | |
1172 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1173 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1174 | } else { |
1175 | const struct usb_device_id *id = wacom_ids; | |
1176 | ||
eb71d1bb DT |
1177 | dev_info(&wacom->intf->dev, |
1178 | "wireless tablet connected with PID %x\n", | |
1179 | wacom_wac->pid); | |
16bf288c CB |
1180 | |
1181 | while (id->match_flags) { | |
1182 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1183 | id->idProduct == wacom_wac->pid) | |
1184 | break; | |
1185 | id++; | |
1186 | } | |
1187 | ||
1188 | if (!id->match_flags) { | |
eb71d1bb DT |
1189 | dev_info(&wacom->intf->dev, |
1190 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1191 | return; |
1192 | } | |
1193 | ||
1194 | /* Stylus interface */ | |
b7af2bb8 | 1195 | wacom_wac1->features = |
16bf288c | 1196 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 | 1197 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1198 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1199 | wacom_wac1->features.name); | |
b7af2bb8 CB |
1200 | error = wacom_register_input(wacom1); |
1201 | if (error) | |
57bcfce3 | 1202 | goto fail; |
16bf288c CB |
1203 | |
1204 | /* Touch interface */ | |
b5fd2a3e PC |
1205 | if (wacom_wac1->features.touch_max || |
1206 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 PC |
1207 | wacom_wac2->features = |
1208 | *((struct wacom_features *)id->driver_info); | |
1209 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1210 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1211 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1212 | if (wacom_wac2->features.touch_max) | |
1213 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1214 | "%s (WL) Finger",wacom_wac2->features.name); | |
1215 | else | |
1216 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1217 | "%s (WL) Pad",wacom_wac2->features.name); | |
1218 | error = wacom_register_input(wacom2); | |
1219 | if (error) | |
1220 | goto fail; | |
1221 | } | |
b7af2bb8 CB |
1222 | |
1223 | error = wacom_initialize_battery(wacom); | |
1224 | if (error) | |
57bcfce3 | 1225 | goto fail; |
16bf288c | 1226 | } |
b7af2bb8 CB |
1227 | |
1228 | return; | |
1229 | ||
57bcfce3 PC |
1230 | fail: |
1231 | if (wacom_wac2->input) { | |
1232 | input_unregister_device(wacom_wac2->input); | |
1233 | wacom_wac2->input = NULL; | |
1234 | } | |
1235 | ||
1236 | if (wacom_wac1->input) { | |
1237 | input_unregister_device(wacom_wac1->input); | |
1238 | wacom_wac1->input = NULL; | |
1239 | } | |
b7af2bb8 | 1240 | return; |
16bf288c CB |
1241 | } |
1242 | ||
401d7d10 PC |
1243 | /* |
1244 | * Not all devices report physical dimensions from HID. | |
1245 | * Compute the default from hardcoded logical dimension | |
1246 | * and resolution before driver overwrites them. | |
1247 | */ | |
1248 | static void wacom_set_default_phy(struct wacom_features *features) | |
1249 | { | |
1250 | if (features->x_resolution) { | |
1251 | features->x_phy = (features->x_max * 100) / | |
1252 | features->x_resolution; | |
1253 | features->y_phy = (features->y_max * 100) / | |
1254 | features->y_resolution; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | static void wacom_calculate_res(struct wacom_features *features) | |
1259 | { | |
1260 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1261 | features->x_phy, | |
1262 | features->unit, | |
1263 | features->unitExpo); | |
1264 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1265 | features->y_phy, | |
1266 | features->unit, | |
1267 | features->unitExpo); | |
1268 | } | |
1269 | ||
3bea733a PC |
1270 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1271 | { | |
1272 | struct usb_device *dev = interface_to_usbdev(intf); | |
1273 | struct usb_endpoint_descriptor *endpoint; | |
1274 | struct wacom *wacom; | |
1275 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1276 | struct wacom_features *features; |
e33da8a5 | 1277 | int error; |
3bea733a | 1278 | |
e33da8a5 | 1279 | if (!id->driver_info) |
b036f6fb BB |
1280 | return -EINVAL; |
1281 | ||
3bea733a | 1282 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1283 | if (!wacom) |
1284 | return -ENOMEM; | |
e33da8a5 | 1285 | |
51269fe8 | 1286 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1287 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1288 | features = &wacom_wac->features; | |
1289 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1290 | error = -EINVAL; | |
3bea733a | 1291 | goto fail1; |
e33da8a5 | 1292 | } |
3bea733a | 1293 | |
997ea58e DM |
1294 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1295 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1296 | if (!wacom_wac->data) { |
1297 | error = -ENOMEM; | |
3bea733a | 1298 | goto fail1; |
e33da8a5 | 1299 | } |
3bea733a PC |
1300 | |
1301 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1302 | if (!wacom->irq) { |
1303 | error = -ENOMEM; | |
3bea733a | 1304 | goto fail2; |
e33da8a5 | 1305 | } |
3bea733a PC |
1306 | |
1307 | wacom->usbdev = dev; | |
e7224094 ON |
1308 | wacom->intf = intf; |
1309 | mutex_init(&wacom->lock); | |
16bf288c | 1310 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1311 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1312 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1313 | ||
545f4e99 PC |
1314 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1315 | ||
401d7d10 PC |
1316 | /* set the default size in case we do not get them from hid */ |
1317 | wacom_set_default_phy(features); | |
1318 | ||
f393ee2b | 1319 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1320 | error = wacom_retrieve_hid_descriptor(intf, features); |
1321 | if (error) | |
4b6d4434 | 1322 | goto fail3; |
545f4e99 | 1323 | |
ae584ca4 JG |
1324 | /* |
1325 | * Intuos5 has no useful data about its touch interface in its | |
1326 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1327 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1328 | */ | |
b5fd2a3e | 1329 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
ae584ca4 JG |
1330 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
1331 | features->device_type = BTN_TOOL_FINGER; | |
1332 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1333 | ||
ae584ca4 JG |
1334 | features->x_max = 4096; |
1335 | features->y_max = 4096; | |
1336 | } else { | |
1337 | features->device_type = BTN_TOOL_PEN; | |
1338 | } | |
1339 | } | |
1340 | ||
bc73dd39 HR |
1341 | wacom_setup_device_quirks(features); |
1342 | ||
401d7d10 PC |
1343 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1344 | if (!features->unit) { | |
1345 | features->unit = 0x11; | |
1346 | features->unitExpo = 16 - 3; | |
1347 | } | |
1348 | wacom_calculate_res(features); | |
1349 | ||
49b764ae PC |
1350 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1351 | ||
bc73dd39 | 1352 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1353 | struct usb_device *other_dev; |
1354 | ||
49b764ae | 1355 | /* Append the device type to the name */ |
57bcfce3 PC |
1356 | if (features->device_type != BTN_TOOL_FINGER) |
1357 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1358 | else if (features->touch_max) | |
1359 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1360 | else | |
1361 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1362 | |
aea2bf6a JG |
1363 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1364 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1365 | other_dev = dev; | |
1366 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff PC |
1367 | if (error) |
1368 | goto fail3; | |
49b764ae PC |
1369 | } |
1370 | ||
3bea733a PC |
1371 | usb_fill_int_urb(wacom->irq, dev, |
1372 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1373 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1374 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1375 | wacom->irq->transfer_dma = wacom->data_dma; |
1376 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1377 | ||
5d7e7d47 | 1378 | error = wacom_initialize_leds(wacom); |
5014186d | 1379 | if (error) |
4492efff | 1380 | goto fail4; |
3bea733a | 1381 | |
d3825d51 CB |
1382 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1383 | error = wacom_register_input(wacom); | |
1384 | if (error) | |
b7af2bb8 | 1385 | goto fail5; |
d3825d51 | 1386 | } |
5d7e7d47 | 1387 | |
ec67bbed PC |
1388 | /* Note that if query fails it is not a hard failure */ |
1389 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1390 | |
1391 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1392 | |
1393 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
d4879c9e WY |
1394 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
1395 | error = -EIO; | |
d3825d51 | 1396 | goto fail5; |
d4879c9e | 1397 | } |
d3825d51 | 1398 | } |
3bea733a PC |
1399 | return 0; |
1400 | ||
5d7e7d47 | 1401 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1402 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1403 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1404 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1405 | fail1: kfree(wacom); |
5014186d | 1406 | return error; |
3bea733a PC |
1407 | } |
1408 | ||
1409 | static void wacom_disconnect(struct usb_interface *intf) | |
1410 | { | |
e7224094 | 1411 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1412 | |
1413 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1414 | |
1415 | usb_kill_urb(wacom->irq); | |
16bf288c | 1416 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1417 | if (wacom->wacom_wac.input) |
1418 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1419 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1420 | wacom_destroy_leds(wacom); |
e7224094 | 1421 | usb_free_urb(wacom->irq); |
997ea58e | 1422 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1423 | wacom->wacom_wac.data, wacom->data_dma); |
1424 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1425 | kfree(wacom); |
1426 | } | |
1427 | ||
1428 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1429 | { | |
1430 | struct wacom *wacom = usb_get_intfdata(intf); | |
1431 | ||
1432 | mutex_lock(&wacom->lock); | |
1433 | usb_kill_urb(wacom->irq); | |
1434 | mutex_unlock(&wacom->lock); | |
1435 | ||
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | static int wacom_resume(struct usb_interface *intf) | |
1440 | { | |
1441 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1442 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1443 | int rv = 0; |
e7224094 ON |
1444 | |
1445 | mutex_lock(&wacom->lock); | |
38101475 PC |
1446 | |
1447 | /* switch to wacom mode first */ | |
1448 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1449 | wacom_led_control(wacom); |
38101475 | 1450 | |
d4879c9e WY |
1451 | if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) && |
1452 | usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1453 | rv = -EIO; |
38101475 | 1454 | |
e7224094 ON |
1455 | mutex_unlock(&wacom->lock); |
1456 | ||
1457 | return rv; | |
1458 | } | |
1459 | ||
1460 | static int wacom_reset_resume(struct usb_interface *intf) | |
1461 | { | |
1462 | return wacom_resume(intf); | |
3bea733a PC |
1463 | } |
1464 | ||
1465 | static struct usb_driver wacom_driver = { | |
1466 | .name = "wacom", | |
b036f6fb | 1467 | .id_table = wacom_ids, |
3bea733a PC |
1468 | .probe = wacom_probe, |
1469 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1470 | .suspend = wacom_suspend, |
1471 | .resume = wacom_resume, | |
1472 | .reset_resume = wacom_reset_resume, | |
1473 | .supports_autosuspend = 1, | |
3bea733a PC |
1474 | }; |
1475 | ||
08642e7c | 1476 | module_usb_driver(wacom_driver); |