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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 | |
5866d9e3 JG |
25 | #define HID_USAGE_X ((HID_USAGE_PAGE_DESKTOP << 16) | 0x30) |
26 | #define HID_USAGE_Y ((HID_USAGE_PAGE_DESKTOP << 16) | 0x31) | |
e9fc413f | 27 | #define HID_USAGE_PRESSURE ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x30) |
5866d9e3 JG |
28 | #define HID_USAGE_X_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3d) |
29 | #define HID_USAGE_Y_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3e) | |
30 | #define HID_USAGE_FINGER ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x22) | |
31 | #define HID_USAGE_STYLUS ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x20) | |
32 | #define HID_USAGE_CONTACTMAX ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x55) | |
4134361a CB |
33 | #define HID_COLLECTION 0xa1 |
34 | #define HID_COLLECTION_LOGICAL 0x02 | |
35 | #define HID_COLLECTION_END 0xc0 | |
545f4e99 | 36 | |
545f4e99 PC |
37 | struct hid_descriptor { |
38 | struct usb_descriptor_header header; | |
39 | __le16 bcdHID; | |
40 | u8 bCountryCode; | |
41 | u8 bNumDescriptors; | |
42 | u8 bDescriptorType; | |
43 | __le16 wDescriptorLength; | |
44 | } __attribute__ ((packed)); | |
45 | ||
46 | /* defines to get/set USB message */ | |
3bea733a PC |
47 | #define USB_REQ_GET_REPORT 0x01 |
48 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 49 | |
545f4e99 | 50 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 51 | #define WAC_MSG_RETRIES 5 |
3bea733a | 52 | |
5d7e7d47 EH |
53 | #define WAC_CMD_LED_CONTROL 0x20 |
54 | #define WAC_CMD_ICON_START 0x21 | |
55 | #define WAC_CMD_ICON_XFER 0x23 | |
56 | #define WAC_CMD_RETRIES 10 | |
57 | ||
58 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
59 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 60 | { |
5d7e7d47 EH |
61 | struct usb_device *dev = interface_to_usbdev(intf); |
62 | int retval; | |
63 | ||
64 | do { | |
65 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
66 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
67 | USB_DIR_IN | USB_TYPE_CLASS | |
68 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
69 | (type << 8) + id, |
70 | intf->altsetting[0].desc.bInterfaceNumber, | |
71 | buf, size, 100); | |
72 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
73 | ||
74 | return retval; | |
3bea733a PC |
75 | } |
76 | ||
5d7e7d47 EH |
77 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
78 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 79 | { |
5d7e7d47 EH |
80 | struct usb_device *dev = interface_to_usbdev(intf); |
81 | int retval; | |
82 | ||
83 | do { | |
84 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
85 | USB_REQ_SET_REPORT, | |
86 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
87 | (type << 8) + id, | |
88 | intf->altsetting[0].desc.bInterfaceNumber, | |
89 | buf, size, 1000); | |
90 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
91 | ||
92 | return retval; | |
3bea733a PC |
93 | } |
94 | ||
54c9b226 | 95 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
96 | { |
97 | struct wacom *wacom = urb->context; | |
65e78a20 | 98 | struct device *dev = &wacom->intf->dev; |
3bea733a PC |
99 | int retval; |
100 | ||
101 | switch (urb->status) { | |
102 | case 0: | |
103 | /* success */ | |
104 | break; | |
105 | case -ECONNRESET: | |
106 | case -ENOENT: | |
107 | case -ESHUTDOWN: | |
108 | /* this urb is terminated, clean up */ | |
3b6aee23 GKH |
109 | dev_dbg(dev, "%s - urb shutting down with status: %d\n", |
110 | __func__, urb->status); | |
3bea733a PC |
111 | return; |
112 | default: | |
3b6aee23 GKH |
113 | dev_dbg(dev, "%s - nonzero urb status received: %d\n", |
114 | __func__, urb->status); | |
3bea733a PC |
115 | goto exit; |
116 | } | |
117 | ||
95dd3b30 | 118 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
119 | |
120 | exit: | |
e7224094 | 121 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 122 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a | 123 | if (retval) |
3b6aee23 | 124 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", |
b3169fec | 125 | __func__, retval); |
3bea733a PC |
126 | } |
127 | ||
3bea733a PC |
128 | static int wacom_open(struct input_dev *dev) |
129 | { | |
7791bdae | 130 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 131 | int retval = 0; |
3bea733a | 132 | |
f6cd3783 | 133 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 134 | return -EIO; |
f6cd3783 DT |
135 | |
136 | mutex_lock(&wacom->lock); | |
e7224094 ON |
137 | |
138 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
f6cd3783 DT |
139 | retval = -EIO; |
140 | goto out; | |
e7224094 ON |
141 | } |
142 | ||
51269fe8 | 143 | wacom->open = true; |
e7224094 | 144 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 145 | |
f6cd3783 | 146 | out: |
e7224094 | 147 | mutex_unlock(&wacom->lock); |
62ecae09 | 148 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 149 | return retval; |
3bea733a PC |
150 | } |
151 | ||
152 | static void wacom_close(struct input_dev *dev) | |
153 | { | |
7791bdae | 154 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
155 | int autopm_error; |
156 | ||
157 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 158 | |
e7224094 | 159 | mutex_lock(&wacom->lock); |
3bea733a | 160 | usb_kill_urb(wacom->irq); |
51269fe8 | 161 | wacom->open = false; |
e7224094 ON |
162 | wacom->intf->needs_remote_wakeup = 0; |
163 | mutex_unlock(&wacom->lock); | |
f6cd3783 | 164 | |
62ecae09 DT |
165 | if (!autopm_error) |
166 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
167 | } |
168 | ||
115d5e12 JG |
169 | /* |
170 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
171 | * This function is little more than hidinput_calc_abs_res stripped down. | |
172 | */ | |
173 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
174 | unsigned char unit, unsigned char exponent) | |
175 | { | |
176 | int prev, unit_exponent; | |
177 | ||
178 | /* Check if the extents are sane */ | |
179 | if (logical_extents <= 0 || physical_extents <= 0) | |
180 | return 0; | |
181 | ||
182 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
183 | unit_exponent = exponent; | |
184 | if (unit_exponent > 7) | |
185 | unit_exponent -= 16; | |
186 | ||
187 | /* Convert physical_extents to millimeters */ | |
188 | if (unit == 0x11) { /* If centimeters */ | |
189 | unit_exponent += 1; | |
190 | } else if (unit == 0x13) { /* If inches */ | |
191 | prev = physical_extents; | |
192 | physical_extents *= 254; | |
193 | if (physical_extents < prev) | |
194 | return 0; | |
195 | unit_exponent -= 1; | |
196 | } else { | |
197 | return 0; | |
198 | } | |
199 | ||
200 | /* Apply negative unit exponent */ | |
201 | for (; unit_exponent < 0; unit_exponent++) { | |
202 | prev = logical_extents; | |
203 | logical_extents *= 10; | |
204 | if (logical_extents < prev) | |
205 | return 0; | |
206 | } | |
207 | /* Apply positive unit exponent */ | |
208 | for (; unit_exponent > 0; unit_exponent--) { | |
209 | prev = physical_extents; | |
210 | physical_extents *= 10; | |
211 | if (physical_extents < prev) | |
212 | return 0; | |
213 | } | |
214 | ||
215 | /* Calculate resolution */ | |
216 | return logical_extents / physical_extents; | |
217 | } | |
218 | ||
4134361a CB |
219 | static int wacom_parse_logical_collection(unsigned char *report, |
220 | struct wacom_features *features) | |
221 | { | |
222 | int length = 0; | |
223 | ||
224 | if (features->type == BAMBOO_PT) { | |
225 | ||
226 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
227 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 228 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 229 | |
4134361a CB |
230 | features->x_max = features->y_max = |
231 | get_unaligned_le16(&report[10]); | |
232 | ||
233 | length = 11; | |
234 | } | |
235 | return length; | |
236 | } | |
237 | ||
f393ee2b PC |
238 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
239 | struct wacom_features *features) | |
240 | { | |
241 | int result = 0; | |
242 | unsigned char *rep_data; | |
243 | ||
244 | rep_data = kmalloc(2, GFP_KERNEL); | |
245 | if (rep_data) { | |
246 | ||
247 | rep_data[0] = 12; | |
248 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 249 | rep_data[0], rep_data, 2, |
f393ee2b PC |
250 | WAC_MSG_RETRIES); |
251 | ||
252 | if (result >= 0 && rep_data[1] > 2) | |
253 | features->touch_max = rep_data[1]; | |
254 | ||
255 | kfree(rep_data); | |
256 | } | |
257 | } | |
258 | ||
428f8588 CB |
259 | /* |
260 | * Interface Descriptor of wacom devices can be incomplete and | |
261 | * inconsistent so wacom_features table is used to store stylus | |
262 | * device's packet lengths, various maximum values, and tablet | |
263 | * resolution based on product ID's. | |
264 | * | |
265 | * For devices that contain 2 interfaces, wacom_features table is | |
266 | * inaccurate for the touch interface. Since the Interface Descriptor | |
267 | * for touch interfaces has pretty complete data, this function exists | |
268 | * to query tablet for this missing information instead of hard coding in | |
269 | * an additional table. | |
270 | * | |
271 | * A typical Interface Descriptor for a stylus will contain a | |
272 | * boot mouse application collection that is not of interest and this | |
273 | * function will ignore it. | |
274 | * | |
275 | * It also contains a digitizer application collection that also is not | |
276 | * of interest since any information it contains would be duplicate | |
277 | * of what is in wacom_features. Usually it defines a report of an array | |
278 | * of bytes that could be used as max length of the stylus packet returned. | |
279 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
280 | * the X and Y logical values contain valid data but it is ignored. | |
281 | * | |
282 | * A typical Interface Descriptor for a touch interface will contain a | |
283 | * Digitizer-Finger Physical Collection which will define both logical | |
284 | * X/Y maximum as well as the physical size of tablet. Since touch | |
285 | * interfaces haven't supported pressure or distance, this is enough | |
286 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
287 | * |
288 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
289 | * Collection. Instead they define a Logical Collection with a single | |
290 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
291 | * |
292 | * Intuos5 touch interface does not contain useful data. We deal with | |
293 | * this after returning from this function. | |
428f8588 CB |
294 | */ |
295 | static int wacom_parse_hid(struct usb_interface *intf, | |
296 | struct hid_descriptor *hid_desc, | |
ec67bbed | 297 | struct wacom_features *features) |
545f4e99 PC |
298 | { |
299 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
300 | char limit = 0; |
301 | /* result has to be defined as int for some devices */ | |
1d0d6df0 | 302 | int result = 0, touch_max = 0; |
5866d9e3 | 303 | int i = 0, page = 0, finger = 0, pen = 0; |
545f4e99 PC |
304 | unsigned char *report; |
305 | ||
306 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
307 | if (!report) | |
308 | return -ENOMEM; | |
309 | ||
310 | /* retrive report descriptors */ | |
311 | do { | |
312 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
313 | USB_REQ_GET_DESCRIPTOR, | |
314 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
315 | HID_DEVICET_REPORT << 8, | |
316 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
317 | report, | |
318 | hid_desc->wDescriptorLength, | |
319 | 5000); /* 5 secs */ | |
a417ea44 | 320 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 321 | |
384318ec | 322 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
323 | if (result < 0) |
324 | goto out; | |
325 | ||
326 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
327 | ||
328 | switch (report[i]) { | |
329 | case HID_USAGE_PAGE: | |
5866d9e3 JG |
330 | page = report[i + 1]; |
331 | i++; | |
545f4e99 PC |
332 | break; |
333 | ||
334 | case HID_USAGE: | |
5866d9e3 | 335 | switch (page << 16 | report[i + 1]) { |
545f4e99 | 336 | case HID_USAGE_X: |
5866d9e3 JG |
337 | if (finger) { |
338 | features->device_type = BTN_TOOL_FINGER; | |
339 | /* touch device at least supports one touch point */ | |
340 | touch_max = 1; | |
341 | switch (features->type) { | |
342 | case TABLETPC2FG: | |
343 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
344 | break; | |
345 | ||
346 | case MTSCREEN: | |
347 | case WACOM_24HDT: | |
348 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
349 | break; | |
350 | ||
351 | case MTTPC: | |
d51ddb2b | 352 | case MTTPC_B: |
5866d9e3 JG |
353 | features->pktlen = WACOM_PKGLEN_MTTPC; |
354 | break; | |
355 | ||
356 | case BAMBOO_PT: | |
357 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
358 | break; | |
359 | ||
360 | default: | |
361 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
362 | break; | |
363 | } | |
364 | ||
365 | switch (features->type) { | |
366 | case BAMBOO_PT: | |
367 | features->x_phy = | |
368 | get_unaligned_le16(&report[i + 5]); | |
369 | features->x_max = | |
370 | get_unaligned_le16(&report[i + 8]); | |
371 | i += 15; | |
372 | break; | |
373 | ||
374 | case WACOM_24HDT: | |
545f4e99 | 375 | features->x_max = |
252f7769 | 376 | get_unaligned_le16(&report[i + 3]); |
5866d9e3 JG |
377 | features->x_phy = |
378 | get_unaligned_le16(&report[i + 8]); | |
379 | features->unit = report[i - 1]; | |
380 | features->unitExpo = report[i - 3]; | |
381 | i += 12; | |
382 | break; | |
383 | ||
d51ddb2b JG |
384 | case MTTPC_B: |
385 | features->x_max = | |
386 | get_unaligned_le16(&report[i + 3]); | |
387 | features->x_phy = | |
388 | get_unaligned_le16(&report[i + 6]); | |
389 | features->unit = report[i - 5]; | |
390 | features->unitExpo = report[i - 3]; | |
391 | i += 9; | |
392 | break; | |
393 | ||
5866d9e3 JG |
394 | default: |
395 | features->x_max = | |
396 | get_unaligned_le16(&report[i + 3]); | |
397 | features->x_phy = | |
398 | get_unaligned_le16(&report[i + 6]); | |
399 | features->unit = report[i + 9]; | |
400 | features->unitExpo = report[i + 11]; | |
401 | i += 12; | |
402 | break; | |
545f4e99 | 403 | } |
5866d9e3 JG |
404 | } else if (pen) { |
405 | /* penabled only accepts exact bytes of data */ | |
406 | if (features->type >= TABLETPC) | |
407 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
408 | features->device_type = BTN_TOOL_PEN; | |
409 | features->x_max = | |
410 | get_unaligned_le16(&report[i + 3]); | |
411 | i += 4; | |
545f4e99 PC |
412 | } |
413 | break; | |
414 | ||
415 | case HID_USAGE_Y: | |
5866d9e3 JG |
416 | if (finger) { |
417 | switch (features->type) { | |
418 | case TABLETPC2FG: | |
419 | case MTSCREEN: | |
420 | case MTTPC: | |
421 | features->y_max = | |
422 | get_unaligned_le16(&report[i + 3]); | |
423 | features->y_phy = | |
424 | get_unaligned_le16(&report[i + 6]); | |
425 | i += 7; | |
426 | break; | |
427 | ||
428 | case WACOM_24HDT: | |
429 | features->y_max = | |
430 | get_unaligned_le16(&report[i + 3]); | |
431 | features->y_phy = | |
432 | get_unaligned_le16(&report[i - 2]); | |
433 | i += 7; | |
434 | break; | |
435 | ||
436 | case BAMBOO_PT: | |
437 | features->y_phy = | |
438 | get_unaligned_le16(&report[i + 3]); | |
439 | features->y_max = | |
440 | get_unaligned_le16(&report[i + 6]); | |
441 | i += 12; | |
442 | break; | |
443 | ||
d51ddb2b JG |
444 | case MTTPC_B: |
445 | features->y_max = | |
446 | get_unaligned_le16(&report[i + 3]); | |
447 | features->y_phy = | |
448 | get_unaligned_le16(&report[i + 6]); | |
449 | i += 9; | |
450 | break; | |
451 | ||
5866d9e3 | 452 | default: |
ec67bbed | 453 | features->y_max = |
5866d9e3 JG |
454 | features->x_max; |
455 | features->y_phy = | |
252f7769 | 456 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 457 | i += 4; |
5866d9e3 | 458 | break; |
ec67bbed | 459 | } |
5866d9e3 JG |
460 | } else if (pen) { |
461 | features->y_max = | |
462 | get_unaligned_le16(&report[i + 3]); | |
463 | i += 4; | |
ec67bbed | 464 | } |
545f4e99 PC |
465 | break; |
466 | ||
467 | case HID_USAGE_FINGER: | |
468 | finger = 1; | |
469 | i++; | |
470 | break; | |
471 | ||
428f8588 CB |
472 | /* |
473 | * Requiring Stylus Usage will ignore boot mouse | |
474 | * X/Y values and some cases of invalid Digitizer X/Y | |
475 | * values commonly reported. | |
476 | */ | |
545f4e99 PC |
477 | case HID_USAGE_STYLUS: |
478 | pen = 1; | |
479 | i++; | |
480 | break; | |
f393ee2b PC |
481 | |
482 | case HID_USAGE_CONTACTMAX: | |
1cecc5cc PC |
483 | /* leave touch_max as is if predefined */ |
484 | if (!features->touch_max) | |
485 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
486 | i++; |
487 | break; | |
e9fc413f JG |
488 | |
489 | case HID_USAGE_PRESSURE: | |
490 | if (pen) { | |
491 | features->pressure_max = | |
492 | get_unaligned_le16(&report[i + 3]); | |
493 | i += 4; | |
494 | } | |
495 | break; | |
545f4e99 PC |
496 | } |
497 | break; | |
498 | ||
4134361a | 499 | case HID_COLLECTION_END: |
ec67bbed | 500 | /* reset UsagePage and Finger */ |
5866d9e3 | 501 | finger = page = 0; |
545f4e99 | 502 | break; |
4134361a CB |
503 | |
504 | case HID_COLLECTION: | |
505 | i++; | |
506 | switch (report[i]) { | |
507 | case HID_COLLECTION_LOGICAL: | |
508 | i += wacom_parse_logical_collection(&report[i], | |
509 | features); | |
510 | break; | |
511 | } | |
512 | break; | |
545f4e99 PC |
513 | } |
514 | } | |
515 | ||
545f4e99 | 516 | out: |
1d0d6df0 PC |
517 | if (!features->touch_max && touch_max) |
518 | features->touch_max = touch_max; | |
384318ec | 519 | result = 0; |
545f4e99 PC |
520 | kfree(report); |
521 | return result; | |
522 | } | |
523 | ||
fe494bc2 | 524 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
525 | { |
526 | unsigned char *rep_data; | |
fe494bc2 | 527 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 528 | |
fe494bc2 | 529 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 530 | if (!rep_data) |
ec67bbed PC |
531 | return error; |
532 | ||
fe494bc2 | 533 | do { |
9937c026 CB |
534 | rep_data[0] = report_id; |
535 | rep_data[1] = mode; | |
536 | ||
fe494bc2 JG |
537 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
538 | report_id, rep_data, length, 1); | |
3cb83157 BT |
539 | if (error >= 0) |
540 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
541 | report_id, rep_data, length, 1); | |
fe494bc2 JG |
542 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
543 | ||
544 | kfree(rep_data); | |
545 | ||
546 | return error < 0 ? error : 0; | |
547 | } | |
548 | ||
549 | /* | |
550 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
551 | * typically configured to power-up in a mode which sends mouse-like | |
552 | * reports to the OS. To get absolute position, pressure data, etc. | |
553 | * from the tablet, it is necessary to switch the tablet out of this | |
554 | * mode and into one which sends the full range of tablet data. | |
555 | */ | |
556 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
557 | { | |
1963518b | 558 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 559 | if (features->type > TABLETPC) { |
fe494bc2 JG |
560 | /* MT Tablet PC touch */ |
561 | return wacom_set_device_mode(intf, 3, 4, 4); | |
562 | } | |
36d3c510 | 563 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
b1e4279e JG |
564 | return wacom_set_device_mode(intf, 18, 3, 2); |
565 | } | |
fe494bc2 JG |
566 | } else if (features->device_type == BTN_TOOL_PEN) { |
567 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
568 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 569 | } |
ec67bbed | 570 | } |
3b7307c2 | 571 | |
fe494bc2 | 572 | return 0; |
3b7307c2 DT |
573 | } |
574 | ||
ec67bbed | 575 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 576 | struct wacom_features *features) |
ec67bbed PC |
577 | { |
578 | int error = 0; | |
579 | struct usb_host_interface *interface = intf->cur_altsetting; | |
580 | struct hid_descriptor *hid_desc; | |
581 | ||
fed87e65 | 582 | /* default features */ |
ec67bbed | 583 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
584 | features->x_fuzz = 4; |
585 | features->y_fuzz = 4; | |
586 | features->pressure_fuzz = 0; | |
587 | features->distance_fuzz = 0; | |
ec67bbed | 588 | |
d3825d51 CB |
589 | /* |
590 | * The wireless device HID is basic and layout conflicts with | |
591 | * other tablets (monitor and touch interface can look like pen). | |
592 | * Skip the query for this type and modify defaults based on | |
593 | * interface number. | |
594 | */ | |
595 | if (features->type == WIRELESS) { | |
596 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
597 | features->device_type = 0; | |
598 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 599 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
600 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
601 | } | |
602 | } | |
603 | ||
1963518b | 604 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 605 | if (features->type < BAMBOO_PT) { |
ec67bbed | 606 | goto out; |
1963518b | 607 | } |
ec67bbed | 608 | |
a882c932 DT |
609 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
610 | if (error) { | |
611 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
612 | HID_DEVICET_REPORT, &hid_desc); | |
613 | if (error) { | |
eb71d1bb DT |
614 | dev_err(&intf->dev, |
615 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
616 | goto out; |
617 | } | |
618 | } | |
619 | error = wacom_parse_hid(intf, hid_desc, features); | |
ec67bbed | 620 | |
ec67bbed PC |
621 | out: |
622 | return error; | |
623 | } | |
624 | ||
4492efff PC |
625 | struct wacom_usbdev_data { |
626 | struct list_head list; | |
627 | struct kref kref; | |
628 | struct usb_device *dev; | |
629 | struct wacom_shared shared; | |
630 | }; | |
631 | ||
632 | static LIST_HEAD(wacom_udev_list); | |
633 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
634 | ||
aea2bf6a JG |
635 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
636 | { | |
637 | int port1; | |
638 | struct usb_device *sibling; | |
639 | ||
640 | if (vendor == 0 && product == 0) | |
641 | return dev; | |
642 | ||
643 | if (dev->parent == NULL) | |
644 | return NULL; | |
645 | ||
646 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
647 | struct usb_device_descriptor *d; | |
648 | if (sibling == NULL) | |
649 | continue; | |
650 | ||
651 | d = &sibling->descriptor; | |
652 | if (d->idVendor == vendor && d->idProduct == product) | |
653 | return sibling; | |
654 | } | |
655 | ||
656 | return NULL; | |
657 | } | |
658 | ||
4492efff PC |
659 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
660 | { | |
661 | struct wacom_usbdev_data *data; | |
662 | ||
663 | list_for_each_entry(data, &wacom_udev_list, list) { | |
664 | if (data->dev == dev) { | |
665 | kref_get(&data->kref); | |
666 | return data; | |
667 | } | |
668 | } | |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
674 | struct usb_device *dev) | |
675 | { | |
676 | struct wacom_usbdev_data *data; | |
677 | int retval = 0; | |
678 | ||
679 | mutex_lock(&wacom_udev_list_lock); | |
680 | ||
681 | data = wacom_get_usbdev_data(dev); | |
682 | if (!data) { | |
683 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
684 | if (!data) { | |
685 | retval = -ENOMEM; | |
686 | goto out; | |
687 | } | |
688 | ||
689 | kref_init(&data->kref); | |
690 | data->dev = dev; | |
691 | list_add_tail(&data->list, &wacom_udev_list); | |
692 | } | |
693 | ||
694 | wacom->shared = &data->shared; | |
695 | ||
696 | out: | |
697 | mutex_unlock(&wacom_udev_list_lock); | |
698 | return retval; | |
699 | } | |
700 | ||
701 | static void wacom_release_shared_data(struct kref *kref) | |
702 | { | |
703 | struct wacom_usbdev_data *data = | |
704 | container_of(kref, struct wacom_usbdev_data, kref); | |
705 | ||
706 | mutex_lock(&wacom_udev_list_lock); | |
707 | list_del(&data->list); | |
708 | mutex_unlock(&wacom_udev_list_lock); | |
709 | ||
710 | kfree(data); | |
711 | } | |
712 | ||
713 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
714 | { | |
715 | struct wacom_usbdev_data *data; | |
716 | ||
717 | if (wacom->shared) { | |
718 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
719 | kref_put(&data->kref, wacom_release_shared_data); | |
720 | wacom->shared = NULL; | |
721 | } | |
722 | } | |
723 | ||
5d7e7d47 EH |
724 | static int wacom_led_control(struct wacom *wacom) |
725 | { | |
726 | unsigned char *buf; | |
9b5b95dd | 727 | int retval; |
5d7e7d47 EH |
728 | |
729 | buf = kzalloc(9, GFP_KERNEL); | |
730 | if (!buf) | |
731 | return -ENOMEM; | |
732 | ||
9b5b95dd | 733 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 734 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
735 | /* |
736 | * Touch Ring and crop mark LED luminance may take on | |
737 | * one of four values: | |
738 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
739 | */ | |
740 | int ring_led = wacom->led.select[0] & 0x03; | |
741 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
742 | int crop_lum = 0; | |
743 | ||
744 | buf[0] = WAC_CMD_LED_CONTROL; | |
745 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
746 | } | |
747 | else { | |
748 | int led = wacom->led.select[0] | 0x4; | |
749 | ||
750 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
751 | wacom->wacom_wac.features.type == WACOM_24HD) | |
752 | led |= (wacom->led.select[1] << 4) | 0x40; | |
753 | ||
754 | buf[0] = WAC_CMD_LED_CONTROL; | |
755 | buf[1] = led; | |
756 | buf[2] = wacom->led.llv; | |
757 | buf[3] = wacom->led.hlv; | |
758 | buf[4] = wacom->led.img_lum; | |
759 | } | |
5d7e7d47 EH |
760 | |
761 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
762 | buf, 9, WAC_CMD_RETRIES); | |
763 | kfree(buf); | |
764 | ||
765 | return retval; | |
766 | } | |
767 | ||
768 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
769 | { | |
770 | unsigned char *buf; | |
771 | int i, retval; | |
772 | ||
773 | buf = kzalloc(259, GFP_KERNEL); | |
774 | if (!buf) | |
775 | return -ENOMEM; | |
776 | ||
777 | /* Send 'start' command */ | |
778 | buf[0] = WAC_CMD_ICON_START; | |
779 | buf[1] = 1; | |
780 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
781 | buf, 2, WAC_CMD_RETRIES); | |
782 | if (retval < 0) | |
783 | goto out; | |
784 | ||
785 | buf[0] = WAC_CMD_ICON_XFER; | |
786 | buf[1] = button_id & 0x07; | |
787 | for (i = 0; i < 4; i++) { | |
788 | buf[2] = i; | |
789 | memcpy(buf + 3, img + i * 256, 256); | |
790 | ||
791 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
792 | buf, 259, WAC_CMD_RETRIES); | |
793 | if (retval < 0) | |
794 | break; | |
795 | } | |
796 | ||
797 | /* Send 'stop' */ | |
798 | buf[0] = WAC_CMD_ICON_START; | |
799 | buf[1] = 0; | |
800 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
801 | buf, 2, WAC_CMD_RETRIES); | |
802 | ||
803 | out: | |
804 | kfree(buf); | |
805 | return retval; | |
806 | } | |
807 | ||
09e7d941 | 808 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
809 | const char *buf, size_t count) |
810 | { | |
811 | struct wacom *wacom = dev_get_drvdata(dev); | |
812 | unsigned int id; | |
813 | int err; | |
814 | ||
815 | err = kstrtouint(buf, 10, &id); | |
816 | if (err) | |
817 | return err; | |
818 | ||
819 | mutex_lock(&wacom->lock); | |
820 | ||
09e7d941 | 821 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
822 | err = wacom_led_control(wacom); |
823 | ||
824 | mutex_unlock(&wacom->lock); | |
825 | ||
826 | return err < 0 ? err : count; | |
827 | } | |
828 | ||
09e7d941 PC |
829 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
830 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
831 | struct device_attribute *attr, const char *buf, size_t count) \ | |
832 | { \ | |
833 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
834 | } \ | |
04c59abd PC |
835 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
836 | struct device_attribute *attr, char *buf) \ | |
837 | { \ | |
838 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
839 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
840 | } \ | |
841 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
842 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
843 | wacom_led##SET_ID##_select_store) |
844 | ||
845 | DEVICE_LED_SELECT_ATTR(0); | |
846 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
847 | |
848 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
849 | const char *buf, size_t count) | |
850 | { | |
851 | unsigned int value; | |
852 | int err; | |
853 | ||
854 | err = kstrtouint(buf, 10, &value); | |
855 | if (err) | |
856 | return err; | |
857 | ||
858 | mutex_lock(&wacom->lock); | |
859 | ||
860 | *dest = value & 0x7f; | |
861 | err = wacom_led_control(wacom); | |
862 | ||
863 | mutex_unlock(&wacom->lock); | |
864 | ||
865 | return err < 0 ? err : count; | |
866 | } | |
867 | ||
868 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
869 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
870 | struct device_attribute *attr, const char *buf, size_t count) \ | |
871 | { \ | |
872 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
873 | \ | |
874 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
875 | buf, count); \ | |
876 | } \ | |
877 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
878 | NULL, wacom_##name##_luminance_store) | |
879 | ||
880 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
881 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
882 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
883 | ||
884 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
885 | const char *buf, size_t count) | |
886 | { | |
887 | struct wacom *wacom = dev_get_drvdata(dev); | |
888 | int err; | |
889 | ||
890 | if (count != 1024) | |
891 | return -EINVAL; | |
892 | ||
893 | mutex_lock(&wacom->lock); | |
894 | ||
895 | err = wacom_led_putimage(wacom, button_id, buf); | |
896 | ||
897 | mutex_unlock(&wacom->lock); | |
898 | ||
899 | return err < 0 ? err : count; | |
900 | } | |
901 | ||
902 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
903 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
904 | struct device_attribute *attr, const char *buf, size_t count) \ | |
905 | { \ | |
906 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
907 | } \ | |
908 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
909 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
910 | ||
911 | DEVICE_BTNIMG_ATTR(0); | |
912 | DEVICE_BTNIMG_ATTR(1); | |
913 | DEVICE_BTNIMG_ATTR(2); | |
914 | DEVICE_BTNIMG_ATTR(3); | |
915 | DEVICE_BTNIMG_ATTR(4); | |
916 | DEVICE_BTNIMG_ATTR(5); | |
917 | DEVICE_BTNIMG_ATTR(6); | |
918 | DEVICE_BTNIMG_ATTR(7); | |
919 | ||
09e7d941 PC |
920 | static struct attribute *cintiq_led_attrs[] = { |
921 | &dev_attr_status_led0_select.attr, | |
922 | &dev_attr_status_led1_select.attr, | |
923 | NULL | |
924 | }; | |
925 | ||
926 | static struct attribute_group cintiq_led_attr_group = { | |
927 | .name = "wacom_led", | |
928 | .attrs = cintiq_led_attrs, | |
929 | }; | |
930 | ||
931 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
932 | &dev_attr_status0_luminance.attr, |
933 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 934 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
935 | &dev_attr_buttons_luminance.attr, |
936 | &dev_attr_button0_rawimg.attr, | |
937 | &dev_attr_button1_rawimg.attr, | |
938 | &dev_attr_button2_rawimg.attr, | |
939 | &dev_attr_button3_rawimg.attr, | |
940 | &dev_attr_button4_rawimg.attr, | |
941 | &dev_attr_button5_rawimg.attr, | |
942 | &dev_attr_button6_rawimg.attr, | |
943 | &dev_attr_button7_rawimg.attr, | |
944 | NULL | |
945 | }; | |
946 | ||
09e7d941 | 947 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 948 | .name = "wacom_led", |
09e7d941 | 949 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
950 | }; |
951 | ||
9b5b95dd JG |
952 | static struct attribute *intuos5_led_attrs[] = { |
953 | &dev_attr_status0_luminance.attr, | |
954 | &dev_attr_status_led0_select.attr, | |
955 | NULL | |
956 | }; | |
957 | ||
958 | static struct attribute_group intuos5_led_attr_group = { | |
959 | .name = "wacom_led", | |
960 | .attrs = intuos5_led_attrs, | |
961 | }; | |
962 | ||
5d7e7d47 EH |
963 | static int wacom_initialize_leds(struct wacom *wacom) |
964 | { | |
965 | int error; | |
966 | ||
09e7d941 PC |
967 | /* Initialize default values */ |
968 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 969 | case INTUOS4S: |
09e7d941 PC |
970 | case INTUOS4: |
971 | case INTUOS4L: | |
972 | wacom->led.select[0] = 0; | |
973 | wacom->led.select[1] = 0; | |
f4fa9a6d | 974 | wacom->led.llv = 10; |
5d7e7d47 EH |
975 | wacom->led.hlv = 20; |
976 | wacom->led.img_lum = 10; | |
09e7d941 PC |
977 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
978 | &intuos4_led_attr_group); | |
979 | break; | |
980 | ||
246835fc | 981 | case WACOM_24HD: |
09e7d941 PC |
982 | case WACOM_21UX2: |
983 | wacom->led.select[0] = 0; | |
984 | wacom->led.select[1] = 0; | |
985 | wacom->led.llv = 0; | |
986 | wacom->led.hlv = 0; | |
987 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
988 | |
989 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
990 | &cintiq_led_attr_group); |
991 | break; | |
992 | ||
9b5b95dd JG |
993 | case INTUOS5S: |
994 | case INTUOS5: | |
995 | case INTUOS5L: | |
9a35c411 PC |
996 | case INTUOSPS: |
997 | case INTUOSPM: | |
998 | case INTUOSPL: | |
c2b0c273 PC |
999 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
1000 | wacom->led.select[0] = 0; | |
1001 | wacom->led.select[1] = 0; | |
1002 | wacom->led.llv = 32; | |
1003 | wacom->led.hlv = 0; | |
1004 | wacom->led.img_lum = 0; | |
1005 | ||
1006 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
1007 | &intuos5_led_attr_group); | |
1008 | } else | |
1009 | return 0; | |
9b5b95dd JG |
1010 | break; |
1011 | ||
09e7d941 PC |
1012 | default: |
1013 | return 0; | |
5d7e7d47 EH |
1014 | } |
1015 | ||
09e7d941 PC |
1016 | if (error) { |
1017 | dev_err(&wacom->intf->dev, | |
1018 | "cannot create sysfs group err: %d\n", error); | |
1019 | return error; | |
1020 | } | |
1021 | wacom_led_control(wacom); | |
1022 | ||
5d7e7d47 EH |
1023 | return 0; |
1024 | } | |
1025 | ||
1026 | static void wacom_destroy_leds(struct wacom *wacom) | |
1027 | { | |
09e7d941 | 1028 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 1029 | case INTUOS4S: |
09e7d941 PC |
1030 | case INTUOS4: |
1031 | case INTUOS4L: | |
5d7e7d47 | 1032 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
1033 | &intuos4_led_attr_group); |
1034 | break; | |
1035 | ||
246835fc | 1036 | case WACOM_24HD: |
09e7d941 PC |
1037 | case WACOM_21UX2: |
1038 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1039 | &cintiq_led_attr_group); | |
1040 | break; | |
9b5b95dd JG |
1041 | |
1042 | case INTUOS5S: | |
1043 | case INTUOS5: | |
1044 | case INTUOS5L: | |
9a35c411 PC |
1045 | case INTUOSPS: |
1046 | case INTUOSPM: | |
1047 | case INTUOSPL: | |
c2b0c273 PC |
1048 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
1049 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1050 | &intuos5_led_attr_group); | |
9b5b95dd | 1051 | break; |
5d7e7d47 EH |
1052 | } |
1053 | } | |
1054 | ||
a1d552cc | 1055 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 1056 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1057 | POWER_SUPPLY_PROP_CAPACITY |
1058 | }; | |
1059 | ||
1060 | static int wacom_battery_get_property(struct power_supply *psy, | |
1061 | enum power_supply_property psp, | |
1062 | union power_supply_propval *val) | |
1063 | { | |
1064 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1065 | int ret = 0; | |
1066 | ||
1067 | switch (psp) { | |
6e2a6e80 BN |
1068 | case POWER_SUPPLY_PROP_SCOPE: |
1069 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1070 | break; | |
a1d552cc CB |
1071 | case POWER_SUPPLY_PROP_CAPACITY: |
1072 | val->intval = | |
1073 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1074 | break; | |
1075 | default: | |
1076 | ret = -EINVAL; | |
1077 | break; | |
1078 | } | |
1079 | ||
1080 | return ret; | |
1081 | } | |
1082 | ||
1083 | static int wacom_initialize_battery(struct wacom *wacom) | |
1084 | { | |
1085 | int error = 0; | |
1086 | ||
1087 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1088 | wacom->battery.properties = wacom_battery_props; | |
1089 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1090 | wacom->battery.get_property = wacom_battery_get_property; | |
1091 | wacom->battery.name = "wacom_battery"; | |
1092 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1093 | wacom->battery.use_for_apm = 0; | |
1094 | ||
1095 | error = power_supply_register(&wacom->usbdev->dev, | |
1096 | &wacom->battery); | |
b7af2bb8 CB |
1097 | |
1098 | if (!error) | |
1099 | power_supply_powers(&wacom->battery, | |
1100 | &wacom->usbdev->dev); | |
a1d552cc CB |
1101 | } |
1102 | ||
1103 | return error; | |
1104 | } | |
1105 | ||
1106 | static void wacom_destroy_battery(struct wacom *wacom) | |
1107 | { | |
b7af2bb8 CB |
1108 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1109 | wacom->battery.dev) { | |
a1d552cc | 1110 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1111 | wacom->battery.dev = NULL; |
1112 | } | |
a1d552cc CB |
1113 | } |
1114 | ||
3aac0ef1 CB |
1115 | static int wacom_register_input(struct wacom *wacom) |
1116 | { | |
1117 | struct input_dev *input_dev; | |
1118 | struct usb_interface *intf = wacom->intf; | |
1119 | struct usb_device *dev = interface_to_usbdev(intf); | |
1120 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1121 | int error; | |
1122 | ||
1123 | input_dev = input_allocate_device(); | |
1963518b PC |
1124 | if (!input_dev) { |
1125 | error = -ENOMEM; | |
1126 | goto fail1; | |
1127 | } | |
3aac0ef1 CB |
1128 | |
1129 | input_dev->name = wacom_wac->name; | |
7097d4cb | 1130 | input_dev->phys = wacom->phys; |
3aac0ef1 CB |
1131 | input_dev->dev.parent = &intf->dev; |
1132 | input_dev->open = wacom_open; | |
1133 | input_dev->close = wacom_close; | |
1134 | usb_to_input_id(dev, &input_dev->id); | |
1135 | input_set_drvdata(input_dev, wacom); | |
1136 | ||
1137 | wacom_wac->input = input_dev; | |
1963518b PC |
1138 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1139 | if (error) | |
1140 | goto fail1; | |
3aac0ef1 CB |
1141 | |
1142 | error = input_register_device(input_dev); | |
1963518b PC |
1143 | if (error) |
1144 | goto fail2; | |
1145 | ||
1146 | return 0; | |
3aac0ef1 | 1147 | |
1963518b PC |
1148 | fail2: |
1149 | input_free_device(input_dev); | |
1150 | wacom_wac->input = NULL; | |
1151 | fail1: | |
3aac0ef1 CB |
1152 | return error; |
1153 | } | |
1154 | ||
16bf288c CB |
1155 | static void wacom_wireless_work(struct work_struct *work) |
1156 | { | |
1157 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1158 | struct usb_device *usbdev = wacom->usbdev; | |
1159 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1160 | struct wacom *wacom1, *wacom2; |
1161 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1162 | int error; | |
16bf288c CB |
1163 | |
1164 | /* | |
1165 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1166 | * remove any existing input and battery devices. |
16bf288c CB |
1167 | */ |
1168 | ||
b7af2bb8 CB |
1169 | wacom_destroy_battery(wacom); |
1170 | ||
16bf288c | 1171 | /* Stylus interface */ |
b7af2bb8 CB |
1172 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1173 | wacom_wac1 = &(wacom1->wacom_wac); | |
1174 | if (wacom_wac1->input) | |
1175 | input_unregister_device(wacom_wac1->input); | |
1176 | wacom_wac1->input = NULL; | |
16bf288c CB |
1177 | |
1178 | /* Touch interface */ | |
b7af2bb8 CB |
1179 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1180 | wacom_wac2 = &(wacom2->wacom_wac); | |
1181 | if (wacom_wac2->input) | |
1182 | input_unregister_device(wacom_wac2->input); | |
1183 | wacom_wac2->input = NULL; | |
16bf288c CB |
1184 | |
1185 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1186 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1187 | } else { |
1188 | const struct usb_device_id *id = wacom_ids; | |
1189 | ||
eb71d1bb DT |
1190 | dev_info(&wacom->intf->dev, |
1191 | "wireless tablet connected with PID %x\n", | |
1192 | wacom_wac->pid); | |
16bf288c CB |
1193 | |
1194 | while (id->match_flags) { | |
1195 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1196 | id->idProduct == wacom_wac->pid) | |
1197 | break; | |
1198 | id++; | |
1199 | } | |
1200 | ||
1201 | if (!id->match_flags) { | |
eb71d1bb DT |
1202 | dev_info(&wacom->intf->dev, |
1203 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1204 | return; |
1205 | } | |
1206 | ||
1207 | /* Stylus interface */ | |
b7af2bb8 | 1208 | wacom_wac1->features = |
16bf288c | 1209 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 | 1210 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1211 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1212 | wacom_wac1->features.name); | |
961794a0 PC |
1213 | wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; |
1214 | wacom_wac1->shared->type = wacom_wac1->features.type; | |
b7af2bb8 CB |
1215 | error = wacom_register_input(wacom1); |
1216 | if (error) | |
57bcfce3 | 1217 | goto fail; |
16bf288c CB |
1218 | |
1219 | /* Touch interface */ | |
b5fd2a3e PC |
1220 | if (wacom_wac1->features.touch_max || |
1221 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 PC |
1222 | wacom_wac2->features = |
1223 | *((struct wacom_features *)id->driver_info); | |
1224 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1225 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1226 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1227 | if (wacom_wac2->features.touch_max) | |
1228 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1229 | "%s (WL) Finger",wacom_wac2->features.name); | |
1230 | else | |
1231 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1232 | "%s (WL) Pad",wacom_wac2->features.name); | |
1233 | error = wacom_register_input(wacom2); | |
1234 | if (error) | |
1235 | goto fail; | |
961794a0 PC |
1236 | |
1237 | if (wacom_wac1->features.type == INTUOSHT && | |
1238 | wacom_wac1->features.touch_max) | |
1239 | wacom_wac->shared->touch_input = wacom_wac2->input; | |
57bcfce3 | 1240 | } |
b7af2bb8 CB |
1241 | |
1242 | error = wacom_initialize_battery(wacom); | |
1243 | if (error) | |
57bcfce3 | 1244 | goto fail; |
16bf288c | 1245 | } |
b7af2bb8 CB |
1246 | |
1247 | return; | |
1248 | ||
57bcfce3 PC |
1249 | fail: |
1250 | if (wacom_wac2->input) { | |
1251 | input_unregister_device(wacom_wac2->input); | |
1252 | wacom_wac2->input = NULL; | |
1253 | } | |
1254 | ||
1255 | if (wacom_wac1->input) { | |
1256 | input_unregister_device(wacom_wac1->input); | |
1257 | wacom_wac1->input = NULL; | |
1258 | } | |
b7af2bb8 | 1259 | return; |
16bf288c CB |
1260 | } |
1261 | ||
401d7d10 PC |
1262 | /* |
1263 | * Not all devices report physical dimensions from HID. | |
1264 | * Compute the default from hardcoded logical dimension | |
1265 | * and resolution before driver overwrites them. | |
1266 | */ | |
1267 | static void wacom_set_default_phy(struct wacom_features *features) | |
1268 | { | |
1269 | if (features->x_resolution) { | |
1270 | features->x_phy = (features->x_max * 100) / | |
1271 | features->x_resolution; | |
1272 | features->y_phy = (features->y_max * 100) / | |
1273 | features->y_resolution; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | static void wacom_calculate_res(struct wacom_features *features) | |
1278 | { | |
1279 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1280 | features->x_phy, | |
1281 | features->unit, | |
1282 | features->unitExpo); | |
1283 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1284 | features->y_phy, | |
1285 | features->unit, | |
1286 | features->unitExpo); | |
1287 | } | |
1288 | ||
3bea733a PC |
1289 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1290 | { | |
1291 | struct usb_device *dev = interface_to_usbdev(intf); | |
1292 | struct usb_endpoint_descriptor *endpoint; | |
1293 | struct wacom *wacom; | |
1294 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1295 | struct wacom_features *features; |
e33da8a5 | 1296 | int error; |
3bea733a | 1297 | |
e33da8a5 | 1298 | if (!id->driver_info) |
b036f6fb BB |
1299 | return -EINVAL; |
1300 | ||
3bea733a | 1301 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1302 | if (!wacom) |
1303 | return -ENOMEM; | |
e33da8a5 | 1304 | |
51269fe8 | 1305 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1306 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1307 | features = &wacom_wac->features; | |
1308 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1309 | error = -EINVAL; | |
3bea733a | 1310 | goto fail1; |
e33da8a5 | 1311 | } |
3bea733a | 1312 | |
997ea58e DM |
1313 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1314 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1315 | if (!wacom_wac->data) { |
1316 | error = -ENOMEM; | |
3bea733a | 1317 | goto fail1; |
e33da8a5 | 1318 | } |
3bea733a PC |
1319 | |
1320 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1321 | if (!wacom->irq) { |
1322 | error = -ENOMEM; | |
3bea733a | 1323 | goto fail2; |
e33da8a5 | 1324 | } |
3bea733a PC |
1325 | |
1326 | wacom->usbdev = dev; | |
e7224094 ON |
1327 | wacom->intf = intf; |
1328 | mutex_init(&wacom->lock); | |
16bf288c | 1329 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1330 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1331 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1332 | ||
545f4e99 PC |
1333 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1334 | ||
401d7d10 PC |
1335 | /* set the default size in case we do not get them from hid */ |
1336 | wacom_set_default_phy(features); | |
1337 | ||
f393ee2b | 1338 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1339 | error = wacom_retrieve_hid_descriptor(intf, features); |
1340 | if (error) | |
4b6d4434 | 1341 | goto fail3; |
545f4e99 | 1342 | |
ae584ca4 JG |
1343 | /* |
1344 | * Intuos5 has no useful data about its touch interface in its | |
1345 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1346 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1347 | */ | |
b5fd2a3e | 1348 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
ae584ca4 JG |
1349 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
1350 | features->device_type = BTN_TOOL_FINGER; | |
1351 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1352 | ||
ae584ca4 JG |
1353 | features->x_max = 4096; |
1354 | features->y_max = 4096; | |
1355 | } else { | |
1356 | features->device_type = BTN_TOOL_PEN; | |
1357 | } | |
1358 | } | |
1359 | ||
bc73dd39 HR |
1360 | wacom_setup_device_quirks(features); |
1361 | ||
401d7d10 PC |
1362 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1363 | if (!features->unit) { | |
1364 | features->unit = 0x11; | |
1365 | features->unitExpo = 16 - 3; | |
1366 | } | |
1367 | wacom_calculate_res(features); | |
1368 | ||
49b764ae PC |
1369 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1370 | ||
bc73dd39 | 1371 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1372 | struct usb_device *other_dev; |
1373 | ||
49b764ae | 1374 | /* Append the device type to the name */ |
57bcfce3 PC |
1375 | if (features->device_type != BTN_TOOL_FINGER) |
1376 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1377 | else if (features->touch_max) | |
1378 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1379 | else | |
1380 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1381 | |
aea2bf6a JG |
1382 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1383 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1384 | other_dev = dev; | |
1385 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff PC |
1386 | if (error) |
1387 | goto fail3; | |
49b764ae PC |
1388 | } |
1389 | ||
3bea733a PC |
1390 | usb_fill_int_urb(wacom->irq, dev, |
1391 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1392 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1393 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1394 | wacom->irq->transfer_dma = wacom->data_dma; |
1395 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1396 | ||
5d7e7d47 | 1397 | error = wacom_initialize_leds(wacom); |
5014186d | 1398 | if (error) |
4492efff | 1399 | goto fail4; |
3bea733a | 1400 | |
d3825d51 CB |
1401 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1402 | error = wacom_register_input(wacom); | |
1403 | if (error) | |
b7af2bb8 | 1404 | goto fail5; |
d3825d51 | 1405 | } |
5d7e7d47 | 1406 | |
ec67bbed PC |
1407 | /* Note that if query fails it is not a hard failure */ |
1408 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1409 | |
1410 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1411 | |
1412 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
d4879c9e WY |
1413 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
1414 | error = -EIO; | |
d3825d51 | 1415 | goto fail5; |
d4879c9e | 1416 | } |
d3825d51 | 1417 | } |
961794a0 PC |
1418 | |
1419 | if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { | |
1420 | if (wacom_wac->features.device_type == BTN_TOOL_FINGER) | |
1421 | wacom_wac->shared->touch_input = wacom_wac->input; | |
1422 | } | |
1423 | ||
3bea733a PC |
1424 | return 0; |
1425 | ||
5d7e7d47 | 1426 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1427 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1428 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1429 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1430 | fail1: kfree(wacom); |
5014186d | 1431 | return error; |
3bea733a PC |
1432 | } |
1433 | ||
1434 | static void wacom_disconnect(struct usb_interface *intf) | |
1435 | { | |
e7224094 | 1436 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1437 | |
1438 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1439 | |
1440 | usb_kill_urb(wacom->irq); | |
16bf288c | 1441 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1442 | if (wacom->wacom_wac.input) |
1443 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1444 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1445 | wacom_destroy_leds(wacom); |
e7224094 | 1446 | usb_free_urb(wacom->irq); |
997ea58e | 1447 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1448 | wacom->wacom_wac.data, wacom->data_dma); |
1449 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1450 | kfree(wacom); |
1451 | } | |
1452 | ||
1453 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1454 | { | |
1455 | struct wacom *wacom = usb_get_intfdata(intf); | |
1456 | ||
1457 | mutex_lock(&wacom->lock); | |
1458 | usb_kill_urb(wacom->irq); | |
1459 | mutex_unlock(&wacom->lock); | |
1460 | ||
1461 | return 0; | |
1462 | } | |
1463 | ||
1464 | static int wacom_resume(struct usb_interface *intf) | |
1465 | { | |
1466 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1467 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1468 | int rv = 0; |
e7224094 ON |
1469 | |
1470 | mutex_lock(&wacom->lock); | |
38101475 PC |
1471 | |
1472 | /* switch to wacom mode first */ | |
1473 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1474 | wacom_led_control(wacom); |
38101475 | 1475 | |
d4879c9e WY |
1476 | if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) && |
1477 | usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1478 | rv = -EIO; |
38101475 | 1479 | |
e7224094 ON |
1480 | mutex_unlock(&wacom->lock); |
1481 | ||
1482 | return rv; | |
1483 | } | |
1484 | ||
1485 | static int wacom_reset_resume(struct usb_interface *intf) | |
1486 | { | |
1487 | return wacom_resume(intf); | |
3bea733a PC |
1488 | } |
1489 | ||
1490 | static struct usb_driver wacom_driver = { | |
1491 | .name = "wacom", | |
b036f6fb | 1492 | .id_table = wacom_ids, |
3bea733a PC |
1493 | .probe = wacom_probe, |
1494 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1495 | .suspend = wacom_suspend, |
1496 | .resume = wacom_resume, | |
1497 | .reset_resume = wacom_reset_resume, | |
1498 | .supports_autosuspend = 1, | |
3bea733a PC |
1499 | }; |
1500 | ||
08642e7c | 1501 | module_usb_driver(wacom_driver); |