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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" |
f54bc61c | 16 | #include <linux/hid.h> |
3bea733a | 17 | |
545f4e99 PC |
18 | /* defines to get HID report descriptor */ |
19 | #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) | |
20 | #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) | |
f54bc61c BT |
21 | #define HID_HDESC_USAGE_UNDEFINED 0x00 |
22 | #define HID_HDESC_USAGE_PAGE 0x05 | |
23 | #define HID_HDESC_USAGE 0x09 | |
24 | #define HID_HDESC_COLLECTION 0xa1 | |
25 | #define HID_HDESC_COLLECTION_LOGICAL 0x02 | |
26 | #define HID_HDESC_COLLECTION_END 0xc0 | |
27 | ||
28 | struct wac_hid_descriptor { | |
545f4e99 PC |
29 | struct usb_descriptor_header header; |
30 | __le16 bcdHID; | |
31 | u8 bCountryCode; | |
32 | u8 bNumDescriptors; | |
33 | u8 bDescriptorType; | |
34 | __le16 wDescriptorLength; | |
35 | } __attribute__ ((packed)); | |
36 | ||
37 | /* defines to get/set USB message */ | |
3bea733a PC |
38 | #define USB_REQ_GET_REPORT 0x01 |
39 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 40 | |
545f4e99 | 41 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 42 | #define WAC_MSG_RETRIES 5 |
3bea733a | 43 | |
5d7e7d47 EH |
44 | #define WAC_CMD_LED_CONTROL 0x20 |
45 | #define WAC_CMD_ICON_START 0x21 | |
46 | #define WAC_CMD_ICON_XFER 0x23 | |
47 | #define WAC_CMD_RETRIES 10 | |
48 | ||
49 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
50 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 51 | { |
5d7e7d47 EH |
52 | struct usb_device *dev = interface_to_usbdev(intf); |
53 | int retval; | |
54 | ||
55 | do { | |
56 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
57 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
58 | USB_DIR_IN | USB_TYPE_CLASS | |
59 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
60 | (type << 8) + id, |
61 | intf->altsetting[0].desc.bInterfaceNumber, | |
62 | buf, size, 100); | |
63 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
64 | ||
65 | return retval; | |
3bea733a PC |
66 | } |
67 | ||
5d7e7d47 EH |
68 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
69 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 70 | { |
5d7e7d47 EH |
71 | struct usb_device *dev = interface_to_usbdev(intf); |
72 | int retval; | |
73 | ||
74 | do { | |
75 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
76 | USB_REQ_SET_REPORT, | |
77 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
78 | (type << 8) + id, | |
79 | intf->altsetting[0].desc.bInterfaceNumber, | |
80 | buf, size, 1000); | |
81 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
82 | ||
83 | return retval; | |
3bea733a PC |
84 | } |
85 | ||
54c9b226 | 86 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
87 | { |
88 | struct wacom *wacom = urb->context; | |
65e78a20 | 89 | struct device *dev = &wacom->intf->dev; |
3bea733a PC |
90 | int retval; |
91 | ||
92 | switch (urb->status) { | |
93 | case 0: | |
94 | /* success */ | |
95 | break; | |
96 | case -ECONNRESET: | |
97 | case -ENOENT: | |
98 | case -ESHUTDOWN: | |
99 | /* this urb is terminated, clean up */ | |
3b6aee23 GKH |
100 | dev_dbg(dev, "%s - urb shutting down with status: %d\n", |
101 | __func__, urb->status); | |
3bea733a PC |
102 | return; |
103 | default: | |
3b6aee23 GKH |
104 | dev_dbg(dev, "%s - nonzero urb status received: %d\n", |
105 | __func__, urb->status); | |
3bea733a PC |
106 | goto exit; |
107 | } | |
108 | ||
95dd3b30 | 109 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
110 | |
111 | exit: | |
e7224094 | 112 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 113 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a | 114 | if (retval) |
3b6aee23 | 115 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", |
b3169fec | 116 | __func__, retval); |
3bea733a PC |
117 | } |
118 | ||
3bea733a PC |
119 | static int wacom_open(struct input_dev *dev) |
120 | { | |
7791bdae | 121 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 122 | int retval = 0; |
3bea733a | 123 | |
f6cd3783 | 124 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 125 | return -EIO; |
f6cd3783 DT |
126 | |
127 | mutex_lock(&wacom->lock); | |
e7224094 | 128 | |
d2d13f18 BT |
129 | if (wacom->open) |
130 | goto out; | |
131 | ||
e7224094 | 132 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
f6cd3783 DT |
133 | retval = -EIO; |
134 | goto out; | |
e7224094 ON |
135 | } |
136 | ||
51269fe8 | 137 | wacom->open = true; |
e7224094 | 138 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 139 | |
f6cd3783 | 140 | out: |
e7224094 | 141 | mutex_unlock(&wacom->lock); |
62ecae09 | 142 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 143 | return retval; |
3bea733a PC |
144 | } |
145 | ||
146 | static void wacom_close(struct input_dev *dev) | |
147 | { | |
7791bdae | 148 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
149 | int autopm_error; |
150 | ||
151 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 152 | |
e7224094 | 153 | mutex_lock(&wacom->lock); |
d2d13f18 BT |
154 | if (!wacom->open) |
155 | goto out; | |
156 | ||
3bea733a | 157 | usb_kill_urb(wacom->irq); |
51269fe8 | 158 | wacom->open = false; |
e7224094 | 159 | wacom->intf->needs_remote_wakeup = 0; |
d2d13f18 BT |
160 | |
161 | out: | |
e7224094 | 162 | mutex_unlock(&wacom->lock); |
f6cd3783 | 163 | |
62ecae09 DT |
164 | if (!autopm_error) |
165 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
166 | } |
167 | ||
115d5e12 JG |
168 | /* |
169 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
170 | * This function is little more than hidinput_calc_abs_res stripped down. | |
171 | */ | |
172 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
173 | unsigned char unit, unsigned char exponent) | |
174 | { | |
175 | int prev, unit_exponent; | |
176 | ||
177 | /* Check if the extents are sane */ | |
178 | if (logical_extents <= 0 || physical_extents <= 0) | |
179 | return 0; | |
180 | ||
181 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
182 | unit_exponent = exponent; | |
183 | if (unit_exponent > 7) | |
184 | unit_exponent -= 16; | |
185 | ||
186 | /* Convert physical_extents to millimeters */ | |
187 | if (unit == 0x11) { /* If centimeters */ | |
188 | unit_exponent += 1; | |
189 | } else if (unit == 0x13) { /* If inches */ | |
190 | prev = physical_extents; | |
191 | physical_extents *= 254; | |
192 | if (physical_extents < prev) | |
193 | return 0; | |
194 | unit_exponent -= 1; | |
195 | } else { | |
196 | return 0; | |
197 | } | |
198 | ||
199 | /* Apply negative unit exponent */ | |
200 | for (; unit_exponent < 0; unit_exponent++) { | |
201 | prev = logical_extents; | |
202 | logical_extents *= 10; | |
203 | if (logical_extents < prev) | |
204 | return 0; | |
205 | } | |
206 | /* Apply positive unit exponent */ | |
207 | for (; unit_exponent > 0; unit_exponent--) { | |
208 | prev = physical_extents; | |
209 | physical_extents *= 10; | |
210 | if (physical_extents < prev) | |
211 | return 0; | |
212 | } | |
213 | ||
214 | /* Calculate resolution */ | |
215 | return logical_extents / physical_extents; | |
216 | } | |
217 | ||
4134361a CB |
218 | static int wacom_parse_logical_collection(unsigned char *report, |
219 | struct wacom_features *features) | |
220 | { | |
221 | int length = 0; | |
222 | ||
223 | if (features->type == BAMBOO_PT) { | |
224 | ||
225 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
226 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 227 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 228 | |
4134361a CB |
229 | features->x_max = features->y_max = |
230 | get_unaligned_le16(&report[10]); | |
231 | ||
232 | length = 11; | |
233 | } | |
234 | return length; | |
235 | } | |
236 | ||
f393ee2b PC |
237 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
238 | struct wacom_features *features) | |
239 | { | |
240 | int result = 0; | |
241 | unsigned char *rep_data; | |
242 | ||
243 | rep_data = kmalloc(2, GFP_KERNEL); | |
244 | if (rep_data) { | |
245 | ||
246 | rep_data[0] = 12; | |
247 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 248 | rep_data[0], rep_data, 2, |
f393ee2b PC |
249 | WAC_MSG_RETRIES); |
250 | ||
251 | if (result >= 0 && rep_data[1] > 2) | |
252 | features->touch_max = rep_data[1]; | |
253 | ||
254 | kfree(rep_data); | |
255 | } | |
256 | } | |
257 | ||
428f8588 CB |
258 | /* |
259 | * Interface Descriptor of wacom devices can be incomplete and | |
260 | * inconsistent so wacom_features table is used to store stylus | |
261 | * device's packet lengths, various maximum values, and tablet | |
262 | * resolution based on product ID's. | |
263 | * | |
264 | * For devices that contain 2 interfaces, wacom_features table is | |
265 | * inaccurate for the touch interface. Since the Interface Descriptor | |
266 | * for touch interfaces has pretty complete data, this function exists | |
267 | * to query tablet for this missing information instead of hard coding in | |
268 | * an additional table. | |
269 | * | |
270 | * A typical Interface Descriptor for a stylus will contain a | |
271 | * boot mouse application collection that is not of interest and this | |
272 | * function will ignore it. | |
273 | * | |
274 | * It also contains a digitizer application collection that also is not | |
275 | * of interest since any information it contains would be duplicate | |
276 | * of what is in wacom_features. Usually it defines a report of an array | |
277 | * of bytes that could be used as max length of the stylus packet returned. | |
278 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
279 | * the X and Y logical values contain valid data but it is ignored. | |
280 | * | |
281 | * A typical Interface Descriptor for a touch interface will contain a | |
282 | * Digitizer-Finger Physical Collection which will define both logical | |
283 | * X/Y maximum as well as the physical size of tablet. Since touch | |
284 | * interfaces haven't supported pressure or distance, this is enough | |
285 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
286 | * |
287 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
288 | * Collection. Instead they define a Logical Collection with a single | |
289 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
290 | * |
291 | * Intuos5 touch interface does not contain useful data. We deal with | |
292 | * this after returning from this function. | |
428f8588 CB |
293 | */ |
294 | static int wacom_parse_hid(struct usb_interface *intf, | |
f54bc61c | 295 | struct wac_hid_descriptor *hid_desc, |
ec67bbed | 296 | struct wacom_features *features) |
545f4e99 PC |
297 | { |
298 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
299 | char limit = 0; |
300 | /* result has to be defined as int for some devices */ | |
1d0d6df0 | 301 | int result = 0, touch_max = 0; |
5866d9e3 | 302 | int i = 0, page = 0, finger = 0, pen = 0; |
545f4e99 PC |
303 | unsigned char *report; |
304 | ||
305 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
306 | if (!report) | |
307 | return -ENOMEM; | |
308 | ||
309 | /* retrive report descriptors */ | |
310 | do { | |
311 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
312 | USB_REQ_GET_DESCRIPTOR, | |
313 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
314 | HID_DEVICET_REPORT << 8, | |
315 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
316 | report, | |
317 | hid_desc->wDescriptorLength, | |
318 | 5000); /* 5 secs */ | |
a417ea44 | 319 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 320 | |
384318ec | 321 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
322 | if (result < 0) |
323 | goto out; | |
324 | ||
325 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
326 | ||
327 | switch (report[i]) { | |
f54bc61c | 328 | case HID_HDESC_USAGE_PAGE: |
5866d9e3 JG |
329 | page = report[i + 1]; |
330 | i++; | |
545f4e99 PC |
331 | break; |
332 | ||
f54bc61c | 333 | case HID_HDESC_USAGE: |
5866d9e3 | 334 | switch (page << 16 | report[i + 1]) { |
f54bc61c | 335 | case HID_GD_X: |
5866d9e3 JG |
336 | if (finger) { |
337 | features->device_type = BTN_TOOL_FINGER; | |
338 | /* touch device at least supports one touch point */ | |
339 | touch_max = 1; | |
340 | switch (features->type) { | |
341 | case TABLETPC2FG: | |
342 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
343 | break; | |
344 | ||
345 | case MTSCREEN: | |
346 | case WACOM_24HDT: | |
347 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
348 | break; | |
349 | ||
350 | case MTTPC: | |
d51ddb2b | 351 | case MTTPC_B: |
5866d9e3 JG |
352 | features->pktlen = WACOM_PKGLEN_MTTPC; |
353 | break; | |
354 | ||
355 | case BAMBOO_PT: | |
356 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
357 | break; | |
358 | ||
359 | default: | |
360 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
361 | break; | |
362 | } | |
363 | ||
364 | switch (features->type) { | |
365 | case BAMBOO_PT: | |
366 | features->x_phy = | |
367 | get_unaligned_le16(&report[i + 5]); | |
368 | features->x_max = | |
369 | get_unaligned_le16(&report[i + 8]); | |
370 | i += 15; | |
371 | break; | |
372 | ||
373 | case WACOM_24HDT: | |
545f4e99 | 374 | features->x_max = |
252f7769 | 375 | get_unaligned_le16(&report[i + 3]); |
5866d9e3 JG |
376 | features->x_phy = |
377 | get_unaligned_le16(&report[i + 8]); | |
378 | features->unit = report[i - 1]; | |
379 | features->unitExpo = report[i - 3]; | |
380 | i += 12; | |
381 | break; | |
382 | ||
d51ddb2b JG |
383 | case MTTPC_B: |
384 | features->x_max = | |
385 | get_unaligned_le16(&report[i + 3]); | |
386 | features->x_phy = | |
387 | get_unaligned_le16(&report[i + 6]); | |
388 | features->unit = report[i - 5]; | |
389 | features->unitExpo = report[i - 3]; | |
390 | i += 9; | |
391 | break; | |
392 | ||
5866d9e3 JG |
393 | default: |
394 | features->x_max = | |
395 | get_unaligned_le16(&report[i + 3]); | |
396 | features->x_phy = | |
397 | get_unaligned_le16(&report[i + 6]); | |
398 | features->unit = report[i + 9]; | |
399 | features->unitExpo = report[i + 11]; | |
400 | i += 12; | |
401 | break; | |
545f4e99 | 402 | } |
5866d9e3 JG |
403 | } else if (pen) { |
404 | /* penabled only accepts exact bytes of data */ | |
405 | if (features->type >= TABLETPC) | |
406 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
407 | features->device_type = BTN_TOOL_PEN; | |
408 | features->x_max = | |
409 | get_unaligned_le16(&report[i + 3]); | |
410 | i += 4; | |
545f4e99 PC |
411 | } |
412 | break; | |
413 | ||
f54bc61c | 414 | case HID_GD_Y: |
5866d9e3 JG |
415 | if (finger) { |
416 | switch (features->type) { | |
417 | case TABLETPC2FG: | |
418 | case MTSCREEN: | |
419 | case MTTPC: | |
420 | features->y_max = | |
421 | get_unaligned_le16(&report[i + 3]); | |
422 | features->y_phy = | |
423 | get_unaligned_le16(&report[i + 6]); | |
424 | i += 7; | |
425 | break; | |
426 | ||
427 | case WACOM_24HDT: | |
428 | features->y_max = | |
429 | get_unaligned_le16(&report[i + 3]); | |
430 | features->y_phy = | |
431 | get_unaligned_le16(&report[i - 2]); | |
432 | i += 7; | |
433 | break; | |
434 | ||
435 | case BAMBOO_PT: | |
436 | features->y_phy = | |
437 | get_unaligned_le16(&report[i + 3]); | |
438 | features->y_max = | |
439 | get_unaligned_le16(&report[i + 6]); | |
440 | i += 12; | |
441 | break; | |
442 | ||
d51ddb2b JG |
443 | case MTTPC_B: |
444 | features->y_max = | |
445 | get_unaligned_le16(&report[i + 3]); | |
446 | features->y_phy = | |
447 | get_unaligned_le16(&report[i + 6]); | |
448 | i += 9; | |
449 | break; | |
450 | ||
5866d9e3 | 451 | default: |
ec67bbed | 452 | features->y_max = |
5866d9e3 JG |
453 | features->x_max; |
454 | features->y_phy = | |
252f7769 | 455 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 456 | i += 4; |
5866d9e3 | 457 | break; |
ec67bbed | 458 | } |
5866d9e3 JG |
459 | } else if (pen) { |
460 | features->y_max = | |
461 | get_unaligned_le16(&report[i + 3]); | |
462 | i += 4; | |
ec67bbed | 463 | } |
545f4e99 PC |
464 | break; |
465 | ||
f54bc61c | 466 | case HID_DG_FINGER: |
545f4e99 PC |
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 | */ | |
f54bc61c | 476 | case HID_DG_STYLUS: |
545f4e99 PC |
477 | pen = 1; |
478 | i++; | |
479 | break; | |
f393ee2b | 480 | |
f54bc61c | 481 | case HID_DG_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; | |
e9fc413f | 487 | |
f54bc61c | 488 | case HID_DG_TIPPRESSURE: |
e9fc413f JG |
489 | if (pen) { |
490 | features->pressure_max = | |
491 | get_unaligned_le16(&report[i + 3]); | |
492 | i += 4; | |
493 | } | |
494 | break; | |
545f4e99 PC |
495 | } |
496 | break; | |
497 | ||
f54bc61c | 498 | case HID_HDESC_COLLECTION_END: |
ec67bbed | 499 | /* reset UsagePage and Finger */ |
5866d9e3 | 500 | finger = page = 0; |
545f4e99 | 501 | break; |
4134361a | 502 | |
f54bc61c | 503 | case HID_HDESC_COLLECTION: |
4134361a CB |
504 | i++; |
505 | switch (report[i]) { | |
f54bc61c | 506 | case HID_HDESC_COLLECTION_LOGICAL: |
4134361a CB |
507 | i += wacom_parse_logical_collection(&report[i], |
508 | features); | |
509 | break; | |
510 | } | |
511 | break; | |
545f4e99 PC |
512 | } |
513 | } | |
514 | ||
545f4e99 | 515 | out: |
1d0d6df0 PC |
516 | if (!features->touch_max && touch_max) |
517 | features->touch_max = touch_max; | |
384318ec | 518 | result = 0; |
545f4e99 PC |
519 | kfree(report); |
520 | return result; | |
521 | } | |
522 | ||
fe494bc2 | 523 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
524 | { |
525 | unsigned char *rep_data; | |
fe494bc2 | 526 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 527 | |
fe494bc2 | 528 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 529 | if (!rep_data) |
ec67bbed PC |
530 | return error; |
531 | ||
fe494bc2 | 532 | do { |
9937c026 CB |
533 | rep_data[0] = report_id; |
534 | rep_data[1] = mode; | |
535 | ||
fe494bc2 JG |
536 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
537 | report_id, rep_data, length, 1); | |
3cb83157 BT |
538 | if (error >= 0) |
539 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
540 | report_id, rep_data, length, 1); | |
fe494bc2 JG |
541 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
542 | ||
543 | kfree(rep_data); | |
544 | ||
545 | return error < 0 ? error : 0; | |
546 | } | |
547 | ||
548 | /* | |
549 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
550 | * typically configured to power-up in a mode which sends mouse-like | |
551 | * reports to the OS. To get absolute position, pressure data, etc. | |
552 | * from the tablet, it is necessary to switch the tablet out of this | |
553 | * mode and into one which sends the full range of tablet data. | |
554 | */ | |
555 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
556 | { | |
1963518b | 557 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 558 | if (features->type > TABLETPC) { |
fe494bc2 JG |
559 | /* MT Tablet PC touch */ |
560 | return wacom_set_device_mode(intf, 3, 4, 4); | |
561 | } | |
36d3c510 | 562 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
b1e4279e JG |
563 | return wacom_set_device_mode(intf, 18, 3, 2); |
564 | } | |
fe494bc2 JG |
565 | } else if (features->device_type == BTN_TOOL_PEN) { |
566 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
567 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 568 | } |
ec67bbed | 569 | } |
3b7307c2 | 570 | |
fe494bc2 | 571 | return 0; |
3b7307c2 DT |
572 | } |
573 | ||
ec67bbed | 574 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 575 | struct wacom_features *features) |
ec67bbed PC |
576 | { |
577 | int error = 0; | |
578 | struct usb_host_interface *interface = intf->cur_altsetting; | |
f54bc61c | 579 | struct wac_hid_descriptor *hid_desc; |
ec67bbed | 580 | |
fed87e65 | 581 | /* default features */ |
ec67bbed | 582 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
583 | features->x_fuzz = 4; |
584 | features->y_fuzz = 4; | |
585 | features->pressure_fuzz = 0; | |
586 | features->distance_fuzz = 0; | |
ec67bbed | 587 | |
d3825d51 CB |
588 | /* |
589 | * The wireless device HID is basic and layout conflicts with | |
590 | * other tablets (monitor and touch interface can look like pen). | |
591 | * Skip the query for this type and modify defaults based on | |
592 | * interface number. | |
593 | */ | |
594 | if (features->type == WIRELESS) { | |
595 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
596 | features->device_type = 0; | |
597 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 598 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
599 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
600 | } | |
601 | } | |
602 | ||
1963518b | 603 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 604 | if (features->type < BAMBOO_PT) { |
ec67bbed | 605 | goto out; |
1963518b | 606 | } |
ec67bbed | 607 | |
a882c932 DT |
608 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
609 | if (error) { | |
610 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
611 | HID_DEVICET_REPORT, &hid_desc); | |
612 | if (error) { | |
eb71d1bb DT |
613 | dev_err(&intf->dev, |
614 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
615 | goto out; |
616 | } | |
617 | } | |
618 | error = wacom_parse_hid(intf, hid_desc, features); | |
ec67bbed | 619 | |
ec67bbed PC |
620 | out: |
621 | return error; | |
622 | } | |
623 | ||
4492efff PC |
624 | struct wacom_usbdev_data { |
625 | struct list_head list; | |
626 | struct kref kref; | |
627 | struct usb_device *dev; | |
628 | struct wacom_shared shared; | |
629 | }; | |
630 | ||
631 | static LIST_HEAD(wacom_udev_list); | |
632 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
633 | ||
aea2bf6a JG |
634 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
635 | { | |
636 | int port1; | |
637 | struct usb_device *sibling; | |
638 | ||
639 | if (vendor == 0 && product == 0) | |
640 | return dev; | |
641 | ||
642 | if (dev->parent == NULL) | |
643 | return NULL; | |
644 | ||
645 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
646 | struct usb_device_descriptor *d; | |
647 | if (sibling == NULL) | |
648 | continue; | |
649 | ||
650 | d = &sibling->descriptor; | |
651 | if (d->idVendor == vendor && d->idProduct == product) | |
652 | return sibling; | |
653 | } | |
654 | ||
655 | return NULL; | |
656 | } | |
657 | ||
4492efff PC |
658 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
659 | { | |
660 | struct wacom_usbdev_data *data; | |
661 | ||
662 | list_for_each_entry(data, &wacom_udev_list, list) { | |
663 | if (data->dev == dev) { | |
664 | kref_get(&data->kref); | |
665 | return data; | |
666 | } | |
667 | } | |
668 | ||
669 | return NULL; | |
670 | } | |
671 | ||
672 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
673 | struct usb_device *dev) | |
674 | { | |
675 | struct wacom_usbdev_data *data; | |
676 | int retval = 0; | |
677 | ||
678 | mutex_lock(&wacom_udev_list_lock); | |
679 | ||
680 | data = wacom_get_usbdev_data(dev); | |
681 | if (!data) { | |
682 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
683 | if (!data) { | |
684 | retval = -ENOMEM; | |
685 | goto out; | |
686 | } | |
687 | ||
688 | kref_init(&data->kref); | |
689 | data->dev = dev; | |
690 | list_add_tail(&data->list, &wacom_udev_list); | |
691 | } | |
692 | ||
693 | wacom->shared = &data->shared; | |
694 | ||
695 | out: | |
696 | mutex_unlock(&wacom_udev_list_lock); | |
697 | return retval; | |
698 | } | |
699 | ||
700 | static void wacom_release_shared_data(struct kref *kref) | |
701 | { | |
702 | struct wacom_usbdev_data *data = | |
703 | container_of(kref, struct wacom_usbdev_data, kref); | |
704 | ||
705 | mutex_lock(&wacom_udev_list_lock); | |
706 | list_del(&data->list); | |
707 | mutex_unlock(&wacom_udev_list_lock); | |
708 | ||
709 | kfree(data); | |
710 | } | |
711 | ||
712 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
713 | { | |
714 | struct wacom_usbdev_data *data; | |
715 | ||
716 | if (wacom->shared) { | |
717 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
718 | kref_put(&data->kref, wacom_release_shared_data); | |
719 | wacom->shared = NULL; | |
720 | } | |
721 | } | |
722 | ||
5d7e7d47 EH |
723 | static int wacom_led_control(struct wacom *wacom) |
724 | { | |
725 | unsigned char *buf; | |
9b5b95dd | 726 | int retval; |
5d7e7d47 EH |
727 | |
728 | buf = kzalloc(9, GFP_KERNEL); | |
729 | if (!buf) | |
730 | return -ENOMEM; | |
731 | ||
9b5b95dd | 732 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 733 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
734 | /* |
735 | * Touch Ring and crop mark LED luminance may take on | |
736 | * one of four values: | |
737 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
738 | */ | |
739 | int ring_led = wacom->led.select[0] & 0x03; | |
740 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
741 | int crop_lum = 0; | |
742 | ||
743 | buf[0] = WAC_CMD_LED_CONTROL; | |
744 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
745 | } | |
746 | else { | |
747 | int led = wacom->led.select[0] | 0x4; | |
748 | ||
749 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
750 | wacom->wacom_wac.features.type == WACOM_24HD) | |
751 | led |= (wacom->led.select[1] << 4) | 0x40; | |
752 | ||
753 | buf[0] = WAC_CMD_LED_CONTROL; | |
754 | buf[1] = led; | |
755 | buf[2] = wacom->led.llv; | |
756 | buf[3] = wacom->led.hlv; | |
757 | buf[4] = wacom->led.img_lum; | |
758 | } | |
5d7e7d47 EH |
759 | |
760 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
761 | buf, 9, WAC_CMD_RETRIES); | |
762 | kfree(buf); | |
763 | ||
764 | return retval; | |
765 | } | |
766 | ||
767 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
768 | { | |
769 | unsigned char *buf; | |
770 | int i, retval; | |
771 | ||
772 | buf = kzalloc(259, GFP_KERNEL); | |
773 | if (!buf) | |
774 | return -ENOMEM; | |
775 | ||
776 | /* Send 'start' command */ | |
777 | buf[0] = WAC_CMD_ICON_START; | |
778 | buf[1] = 1; | |
779 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
780 | buf, 2, WAC_CMD_RETRIES); | |
781 | if (retval < 0) | |
782 | goto out; | |
783 | ||
784 | buf[0] = WAC_CMD_ICON_XFER; | |
785 | buf[1] = button_id & 0x07; | |
786 | for (i = 0; i < 4; i++) { | |
787 | buf[2] = i; | |
788 | memcpy(buf + 3, img + i * 256, 256); | |
789 | ||
790 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
791 | buf, 259, WAC_CMD_RETRIES); | |
792 | if (retval < 0) | |
793 | break; | |
794 | } | |
795 | ||
796 | /* Send 'stop' */ | |
797 | buf[0] = WAC_CMD_ICON_START; | |
798 | buf[1] = 0; | |
799 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
800 | buf, 2, WAC_CMD_RETRIES); | |
801 | ||
802 | out: | |
803 | kfree(buf); | |
804 | return retval; | |
805 | } | |
806 | ||
09e7d941 | 807 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
808 | const char *buf, size_t count) |
809 | { | |
810 | struct wacom *wacom = dev_get_drvdata(dev); | |
811 | unsigned int id; | |
812 | int err; | |
813 | ||
814 | err = kstrtouint(buf, 10, &id); | |
815 | if (err) | |
816 | return err; | |
817 | ||
818 | mutex_lock(&wacom->lock); | |
819 | ||
09e7d941 | 820 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
821 | err = wacom_led_control(wacom); |
822 | ||
823 | mutex_unlock(&wacom->lock); | |
824 | ||
825 | return err < 0 ? err : count; | |
826 | } | |
827 | ||
09e7d941 PC |
828 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
829 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
830 | struct device_attribute *attr, const char *buf, size_t count) \ | |
831 | { \ | |
832 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
833 | } \ | |
04c59abd PC |
834 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
835 | struct device_attribute *attr, char *buf) \ | |
836 | { \ | |
837 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
838 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
839 | } \ | |
840 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
841 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
842 | wacom_led##SET_ID##_select_store) |
843 | ||
844 | DEVICE_LED_SELECT_ATTR(0); | |
845 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
846 | |
847 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
848 | const char *buf, size_t count) | |
849 | { | |
850 | unsigned int value; | |
851 | int err; | |
852 | ||
853 | err = kstrtouint(buf, 10, &value); | |
854 | if (err) | |
855 | return err; | |
856 | ||
857 | mutex_lock(&wacom->lock); | |
858 | ||
859 | *dest = value & 0x7f; | |
860 | err = wacom_led_control(wacom); | |
861 | ||
862 | mutex_unlock(&wacom->lock); | |
863 | ||
864 | return err < 0 ? err : count; | |
865 | } | |
866 | ||
867 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
868 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
869 | struct device_attribute *attr, const char *buf, size_t count) \ | |
870 | { \ | |
871 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
872 | \ | |
873 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
874 | buf, count); \ | |
875 | } \ | |
876 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
877 | NULL, wacom_##name##_luminance_store) | |
878 | ||
879 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
880 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
881 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
882 | ||
883 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
884 | const char *buf, size_t count) | |
885 | { | |
886 | struct wacom *wacom = dev_get_drvdata(dev); | |
887 | int err; | |
888 | ||
889 | if (count != 1024) | |
890 | return -EINVAL; | |
891 | ||
892 | mutex_lock(&wacom->lock); | |
893 | ||
894 | err = wacom_led_putimage(wacom, button_id, buf); | |
895 | ||
896 | mutex_unlock(&wacom->lock); | |
897 | ||
898 | return err < 0 ? err : count; | |
899 | } | |
900 | ||
901 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
902 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
903 | struct device_attribute *attr, const char *buf, size_t count) \ | |
904 | { \ | |
905 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
906 | } \ | |
907 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
908 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
909 | ||
910 | DEVICE_BTNIMG_ATTR(0); | |
911 | DEVICE_BTNIMG_ATTR(1); | |
912 | DEVICE_BTNIMG_ATTR(2); | |
913 | DEVICE_BTNIMG_ATTR(3); | |
914 | DEVICE_BTNIMG_ATTR(4); | |
915 | DEVICE_BTNIMG_ATTR(5); | |
916 | DEVICE_BTNIMG_ATTR(6); | |
917 | DEVICE_BTNIMG_ATTR(7); | |
918 | ||
09e7d941 PC |
919 | static struct attribute *cintiq_led_attrs[] = { |
920 | &dev_attr_status_led0_select.attr, | |
921 | &dev_attr_status_led1_select.attr, | |
922 | NULL | |
923 | }; | |
924 | ||
925 | static struct attribute_group cintiq_led_attr_group = { | |
926 | .name = "wacom_led", | |
927 | .attrs = cintiq_led_attrs, | |
928 | }; | |
929 | ||
930 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
931 | &dev_attr_status0_luminance.attr, |
932 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 933 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
934 | &dev_attr_buttons_luminance.attr, |
935 | &dev_attr_button0_rawimg.attr, | |
936 | &dev_attr_button1_rawimg.attr, | |
937 | &dev_attr_button2_rawimg.attr, | |
938 | &dev_attr_button3_rawimg.attr, | |
939 | &dev_attr_button4_rawimg.attr, | |
940 | &dev_attr_button5_rawimg.attr, | |
941 | &dev_attr_button6_rawimg.attr, | |
942 | &dev_attr_button7_rawimg.attr, | |
943 | NULL | |
944 | }; | |
945 | ||
09e7d941 | 946 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 947 | .name = "wacom_led", |
09e7d941 | 948 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
949 | }; |
950 | ||
9b5b95dd JG |
951 | static struct attribute *intuos5_led_attrs[] = { |
952 | &dev_attr_status0_luminance.attr, | |
953 | &dev_attr_status_led0_select.attr, | |
954 | NULL | |
955 | }; | |
956 | ||
957 | static struct attribute_group intuos5_led_attr_group = { | |
958 | .name = "wacom_led", | |
959 | .attrs = intuos5_led_attrs, | |
960 | }; | |
961 | ||
5d7e7d47 EH |
962 | static int wacom_initialize_leds(struct wacom *wacom) |
963 | { | |
964 | int error; | |
965 | ||
09e7d941 PC |
966 | /* Initialize default values */ |
967 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 968 | case INTUOS4S: |
09e7d941 PC |
969 | case INTUOS4: |
970 | case INTUOS4L: | |
971 | wacom->led.select[0] = 0; | |
972 | wacom->led.select[1] = 0; | |
f4fa9a6d | 973 | wacom->led.llv = 10; |
5d7e7d47 EH |
974 | wacom->led.hlv = 20; |
975 | wacom->led.img_lum = 10; | |
09e7d941 PC |
976 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
977 | &intuos4_led_attr_group); | |
978 | break; | |
979 | ||
246835fc | 980 | case WACOM_24HD: |
09e7d941 PC |
981 | case WACOM_21UX2: |
982 | wacom->led.select[0] = 0; | |
983 | wacom->led.select[1] = 0; | |
984 | wacom->led.llv = 0; | |
985 | wacom->led.hlv = 0; | |
986 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
987 | |
988 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
989 | &cintiq_led_attr_group); |
990 | break; | |
991 | ||
9b5b95dd JG |
992 | case INTUOS5S: |
993 | case INTUOS5: | |
994 | case INTUOS5L: | |
9a35c411 PC |
995 | case INTUOSPS: |
996 | case INTUOSPM: | |
997 | case INTUOSPL: | |
c2b0c273 PC |
998 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
999 | wacom->led.select[0] = 0; | |
1000 | wacom->led.select[1] = 0; | |
1001 | wacom->led.llv = 32; | |
1002 | wacom->led.hlv = 0; | |
1003 | wacom->led.img_lum = 0; | |
1004 | ||
1005 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
1006 | &intuos5_led_attr_group); | |
1007 | } else | |
1008 | return 0; | |
9b5b95dd JG |
1009 | break; |
1010 | ||
09e7d941 PC |
1011 | default: |
1012 | return 0; | |
5d7e7d47 EH |
1013 | } |
1014 | ||
09e7d941 PC |
1015 | if (error) { |
1016 | dev_err(&wacom->intf->dev, | |
1017 | "cannot create sysfs group err: %d\n", error); | |
1018 | return error; | |
1019 | } | |
1020 | wacom_led_control(wacom); | |
1021 | ||
5d7e7d47 EH |
1022 | return 0; |
1023 | } | |
1024 | ||
1025 | static void wacom_destroy_leds(struct wacom *wacom) | |
1026 | { | |
09e7d941 | 1027 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 1028 | case INTUOS4S: |
09e7d941 PC |
1029 | case INTUOS4: |
1030 | case INTUOS4L: | |
5d7e7d47 | 1031 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
1032 | &intuos4_led_attr_group); |
1033 | break; | |
1034 | ||
246835fc | 1035 | case WACOM_24HD: |
09e7d941 PC |
1036 | case WACOM_21UX2: |
1037 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1038 | &cintiq_led_attr_group); | |
1039 | break; | |
9b5b95dd JG |
1040 | |
1041 | case INTUOS5S: | |
1042 | case INTUOS5: | |
1043 | case INTUOS5L: | |
9a35c411 PC |
1044 | case INTUOSPS: |
1045 | case INTUOSPM: | |
1046 | case INTUOSPL: | |
c2b0c273 PC |
1047 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
1048 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1049 | &intuos5_led_attr_group); | |
9b5b95dd | 1050 | break; |
5d7e7d47 EH |
1051 | } |
1052 | } | |
1053 | ||
a1d552cc | 1054 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 1055 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1056 | POWER_SUPPLY_PROP_CAPACITY |
1057 | }; | |
1058 | ||
1059 | static int wacom_battery_get_property(struct power_supply *psy, | |
1060 | enum power_supply_property psp, | |
1061 | union power_supply_propval *val) | |
1062 | { | |
1063 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1064 | int ret = 0; | |
1065 | ||
1066 | switch (psp) { | |
6e2a6e80 BN |
1067 | case POWER_SUPPLY_PROP_SCOPE: |
1068 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1069 | break; | |
a1d552cc CB |
1070 | case POWER_SUPPLY_PROP_CAPACITY: |
1071 | val->intval = | |
1072 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1073 | break; | |
1074 | default: | |
1075 | ret = -EINVAL; | |
1076 | break; | |
1077 | } | |
1078 | ||
1079 | return ret; | |
1080 | } | |
1081 | ||
1082 | static int wacom_initialize_battery(struct wacom *wacom) | |
1083 | { | |
1084 | int error = 0; | |
1085 | ||
1086 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1087 | wacom->battery.properties = wacom_battery_props; | |
1088 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1089 | wacom->battery.get_property = wacom_battery_get_property; | |
1090 | wacom->battery.name = "wacom_battery"; | |
1091 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1092 | wacom->battery.use_for_apm = 0; | |
1093 | ||
1094 | error = power_supply_register(&wacom->usbdev->dev, | |
1095 | &wacom->battery); | |
b7af2bb8 CB |
1096 | |
1097 | if (!error) | |
1098 | power_supply_powers(&wacom->battery, | |
1099 | &wacom->usbdev->dev); | |
a1d552cc CB |
1100 | } |
1101 | ||
1102 | return error; | |
1103 | } | |
1104 | ||
1105 | static void wacom_destroy_battery(struct wacom *wacom) | |
1106 | { | |
b7af2bb8 CB |
1107 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1108 | wacom->battery.dev) { | |
a1d552cc | 1109 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1110 | wacom->battery.dev = NULL; |
1111 | } | |
a1d552cc CB |
1112 | } |
1113 | ||
d2d13f18 | 1114 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
1115 | { |
1116 | struct input_dev *input_dev; | |
1117 | struct usb_interface *intf = wacom->intf; | |
1118 | struct usb_device *dev = interface_to_usbdev(intf); | |
1119 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
3aac0ef1 CB |
1120 | |
1121 | input_dev = input_allocate_device(); | |
d2d13f18 BT |
1122 | if (!input_dev) |
1123 | return NULL; | |
3aac0ef1 CB |
1124 | |
1125 | input_dev->name = wacom_wac->name; | |
7097d4cb | 1126 | input_dev->phys = wacom->phys; |
3aac0ef1 CB |
1127 | input_dev->dev.parent = &intf->dev; |
1128 | input_dev->open = wacom_open; | |
1129 | input_dev->close = wacom_close; | |
1130 | usb_to_input_id(dev, &input_dev->id); | |
1131 | input_set_drvdata(input_dev, wacom); | |
1132 | ||
d2d13f18 BT |
1133 | return input_dev; |
1134 | } | |
1135 | ||
008f4d9e BT |
1136 | static void wacom_unregister_inputs(struct wacom *wacom) |
1137 | { | |
1138 | if (wacom->wacom_wac.input) | |
1139 | input_unregister_device(wacom->wacom_wac.input); | |
1140 | if (wacom->wacom_wac.pad_input) | |
1141 | input_unregister_device(wacom->wacom_wac.pad_input); | |
1142 | wacom->wacom_wac.input = NULL; | |
1143 | wacom->wacom_wac.pad_input = NULL; | |
1144 | } | |
1145 | ||
1146 | static int wacom_register_inputs(struct wacom *wacom) | |
d2d13f18 BT |
1147 | { |
1148 | struct input_dev *input_dev, *pad_input_dev; | |
1149 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1150 | int error; | |
1151 | ||
1152 | input_dev = wacom_allocate_input(wacom); | |
1153 | pad_input_dev = wacom_allocate_input(wacom); | |
1154 | if (!input_dev || !pad_input_dev) { | |
1155 | error = -ENOMEM; | |
1156 | goto fail1; | |
1157 | } | |
1158 | ||
3aac0ef1 | 1159 | wacom_wac->input = input_dev; |
d2d13f18 BT |
1160 | wacom_wac->pad_input = pad_input_dev; |
1161 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
1162 | ||
1963518b PC |
1163 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1164 | if (error) | |
d2d13f18 | 1165 | goto fail2; |
3aac0ef1 CB |
1166 | |
1167 | error = input_register_device(input_dev); | |
1963518b PC |
1168 | if (error) |
1169 | goto fail2; | |
1170 | ||
d2d13f18 BT |
1171 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
1172 | if (error) { | |
1173 | /* no pad in use on this interface */ | |
1174 | input_free_device(pad_input_dev); | |
1175 | wacom_wac->pad_input = NULL; | |
1176 | pad_input_dev = NULL; | |
1177 | } else { | |
1178 | error = input_register_device(pad_input_dev); | |
1179 | if (error) | |
1180 | goto fail3; | |
1181 | } | |
1182 | ||
1963518b | 1183 | return 0; |
3aac0ef1 | 1184 | |
d2d13f18 BT |
1185 | fail3: |
1186 | input_unregister_device(input_dev); | |
1187 | input_dev = NULL; | |
1963518b | 1188 | fail2: |
1963518b | 1189 | wacom_wac->input = NULL; |
d2d13f18 | 1190 | wacom_wac->pad_input = NULL; |
1963518b | 1191 | fail1: |
d2d13f18 BT |
1192 | if (input_dev) |
1193 | input_free_device(input_dev); | |
1194 | if (pad_input_dev) | |
1195 | input_free_device(pad_input_dev); | |
3aac0ef1 CB |
1196 | return error; |
1197 | } | |
1198 | ||
16bf288c CB |
1199 | static void wacom_wireless_work(struct work_struct *work) |
1200 | { | |
1201 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1202 | struct usb_device *usbdev = wacom->usbdev; | |
1203 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1204 | struct wacom *wacom1, *wacom2; |
1205 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1206 | int error; | |
16bf288c CB |
1207 | |
1208 | /* | |
1209 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1210 | * remove any existing input and battery devices. |
16bf288c CB |
1211 | */ |
1212 | ||
b7af2bb8 CB |
1213 | wacom_destroy_battery(wacom); |
1214 | ||
16bf288c | 1215 | /* Stylus interface */ |
b7af2bb8 CB |
1216 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1217 | wacom_wac1 = &(wacom1->wacom_wac); | |
008f4d9e | 1218 | wacom_unregister_inputs(wacom1); |
16bf288c CB |
1219 | |
1220 | /* Touch interface */ | |
b7af2bb8 CB |
1221 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1222 | wacom_wac2 = &(wacom2->wacom_wac); | |
008f4d9e | 1223 | wacom_unregister_inputs(wacom2); |
16bf288c CB |
1224 | |
1225 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1226 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1227 | } else { |
1228 | const struct usb_device_id *id = wacom_ids; | |
1229 | ||
eb71d1bb DT |
1230 | dev_info(&wacom->intf->dev, |
1231 | "wireless tablet connected with PID %x\n", | |
1232 | wacom_wac->pid); | |
16bf288c CB |
1233 | |
1234 | while (id->match_flags) { | |
1235 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1236 | id->idProduct == wacom_wac->pid) | |
1237 | break; | |
1238 | id++; | |
1239 | } | |
1240 | ||
1241 | if (!id->match_flags) { | |
eb71d1bb DT |
1242 | dev_info(&wacom->intf->dev, |
1243 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1244 | return; |
1245 | } | |
1246 | ||
1247 | /* Stylus interface */ | |
b7af2bb8 | 1248 | wacom_wac1->features = |
16bf288c | 1249 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 | 1250 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1251 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1252 | wacom_wac1->features.name); | |
008f4d9e BT |
1253 | snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad", |
1254 | wacom_wac1->features.name); | |
961794a0 PC |
1255 | wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; |
1256 | wacom_wac1->shared->type = wacom_wac1->features.type; | |
008f4d9e | 1257 | error = wacom_register_inputs(wacom1); |
b7af2bb8 | 1258 | if (error) |
57bcfce3 | 1259 | goto fail; |
16bf288c CB |
1260 | |
1261 | /* Touch interface */ | |
b5fd2a3e PC |
1262 | if (wacom_wac1->features.touch_max || |
1263 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 PC |
1264 | wacom_wac2->features = |
1265 | *((struct wacom_features *)id->driver_info); | |
1266 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1267 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1268 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1269 | if (wacom_wac2->features.touch_max) | |
1270 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1271 | "%s (WL) Finger",wacom_wac2->features.name); | |
1272 | else | |
1273 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1274 | "%s (WL) Pad",wacom_wac2->features.name); | |
008f4d9e BT |
1275 | snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX, |
1276 | "%s (WL) Pad", wacom_wac2->features.name); | |
1277 | error = wacom_register_inputs(wacom2); | |
57bcfce3 PC |
1278 | if (error) |
1279 | goto fail; | |
961794a0 PC |
1280 | |
1281 | if (wacom_wac1->features.type == INTUOSHT && | |
1282 | wacom_wac1->features.touch_max) | |
1283 | wacom_wac->shared->touch_input = wacom_wac2->input; | |
57bcfce3 | 1284 | } |
b7af2bb8 CB |
1285 | |
1286 | error = wacom_initialize_battery(wacom); | |
1287 | if (error) | |
57bcfce3 | 1288 | goto fail; |
16bf288c | 1289 | } |
b7af2bb8 CB |
1290 | |
1291 | return; | |
1292 | ||
57bcfce3 | 1293 | fail: |
008f4d9e BT |
1294 | wacom_unregister_inputs(wacom1); |
1295 | wacom_unregister_inputs(wacom2); | |
b7af2bb8 | 1296 | return; |
16bf288c CB |
1297 | } |
1298 | ||
401d7d10 PC |
1299 | /* |
1300 | * Not all devices report physical dimensions from HID. | |
1301 | * Compute the default from hardcoded logical dimension | |
1302 | * and resolution before driver overwrites them. | |
1303 | */ | |
1304 | static void wacom_set_default_phy(struct wacom_features *features) | |
1305 | { | |
1306 | if (features->x_resolution) { | |
1307 | features->x_phy = (features->x_max * 100) / | |
1308 | features->x_resolution; | |
1309 | features->y_phy = (features->y_max * 100) / | |
1310 | features->y_resolution; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | static void wacom_calculate_res(struct wacom_features *features) | |
1315 | { | |
1316 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1317 | features->x_phy, | |
1318 | features->unit, | |
1319 | features->unitExpo); | |
1320 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1321 | features->y_phy, | |
1322 | features->unit, | |
1323 | features->unitExpo); | |
1324 | } | |
1325 | ||
3bea733a PC |
1326 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1327 | { | |
1328 | struct usb_device *dev = interface_to_usbdev(intf); | |
1329 | struct usb_endpoint_descriptor *endpoint; | |
1330 | struct wacom *wacom; | |
1331 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1332 | struct wacom_features *features; |
e33da8a5 | 1333 | int error; |
3bea733a | 1334 | |
e33da8a5 | 1335 | if (!id->driver_info) |
b036f6fb BB |
1336 | return -EINVAL; |
1337 | ||
3bea733a | 1338 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1339 | if (!wacom) |
1340 | return -ENOMEM; | |
e33da8a5 | 1341 | |
51269fe8 | 1342 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1343 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1344 | features = &wacom_wac->features; | |
1345 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1346 | error = -EINVAL; | |
3bea733a | 1347 | goto fail1; |
e33da8a5 | 1348 | } |
3bea733a | 1349 | |
997ea58e DM |
1350 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1351 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1352 | if (!wacom_wac->data) { |
1353 | error = -ENOMEM; | |
3bea733a | 1354 | goto fail1; |
e33da8a5 | 1355 | } |
3bea733a PC |
1356 | |
1357 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1358 | if (!wacom->irq) { |
1359 | error = -ENOMEM; | |
3bea733a | 1360 | goto fail2; |
e33da8a5 | 1361 | } |
3bea733a PC |
1362 | |
1363 | wacom->usbdev = dev; | |
e7224094 ON |
1364 | wacom->intf = intf; |
1365 | mutex_init(&wacom->lock); | |
16bf288c | 1366 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1367 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1368 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1369 | ||
545f4e99 PC |
1370 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1371 | ||
401d7d10 PC |
1372 | /* set the default size in case we do not get them from hid */ |
1373 | wacom_set_default_phy(features); | |
1374 | ||
f393ee2b | 1375 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1376 | error = wacom_retrieve_hid_descriptor(intf, features); |
1377 | if (error) | |
4b6d4434 | 1378 | goto fail3; |
545f4e99 | 1379 | |
ae584ca4 JG |
1380 | /* |
1381 | * Intuos5 has no useful data about its touch interface in its | |
1382 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1383 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1384 | */ | |
b5fd2a3e | 1385 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
ae584ca4 JG |
1386 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
1387 | features->device_type = BTN_TOOL_FINGER; | |
1388 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1389 | ||
ae584ca4 JG |
1390 | features->x_max = 4096; |
1391 | features->y_max = 4096; | |
1392 | } else { | |
1393 | features->device_type = BTN_TOOL_PEN; | |
1394 | } | |
1395 | } | |
1396 | ||
bc73dd39 HR |
1397 | wacom_setup_device_quirks(features); |
1398 | ||
401d7d10 PC |
1399 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1400 | if (!features->unit) { | |
1401 | features->unit = 0x11; | |
1402 | features->unitExpo = 16 - 3; | |
1403 | } | |
1404 | wacom_calculate_res(features); | |
1405 | ||
49b764ae | 1406 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
d2d13f18 BT |
1407 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
1408 | "%s Pad", features->name); | |
49b764ae | 1409 | |
bc73dd39 | 1410 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1411 | struct usb_device *other_dev; |
1412 | ||
49b764ae | 1413 | /* Append the device type to the name */ |
57bcfce3 PC |
1414 | if (features->device_type != BTN_TOOL_FINGER) |
1415 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1416 | else if (features->touch_max) | |
1417 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1418 | else | |
1419 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1420 | |
aea2bf6a JG |
1421 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1422 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1423 | other_dev = dev; | |
1424 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff PC |
1425 | if (error) |
1426 | goto fail3; | |
49b764ae PC |
1427 | } |
1428 | ||
3bea733a PC |
1429 | usb_fill_int_urb(wacom->irq, dev, |
1430 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1431 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1432 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1433 | wacom->irq->transfer_dma = wacom->data_dma; |
1434 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1435 | ||
5d7e7d47 | 1436 | error = wacom_initialize_leds(wacom); |
5014186d | 1437 | if (error) |
4492efff | 1438 | goto fail4; |
3bea733a | 1439 | |
d3825d51 | 1440 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
008f4d9e | 1441 | error = wacom_register_inputs(wacom); |
d3825d51 | 1442 | if (error) |
b7af2bb8 | 1443 | goto fail5; |
d3825d51 | 1444 | } |
5d7e7d47 | 1445 | |
ec67bbed PC |
1446 | /* Note that if query fails it is not a hard failure */ |
1447 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1448 | |
1449 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1450 | |
1451 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
d4879c9e WY |
1452 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { |
1453 | error = -EIO; | |
d3825d51 | 1454 | goto fail5; |
d4879c9e | 1455 | } |
d3825d51 | 1456 | } |
961794a0 PC |
1457 | |
1458 | if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { | |
1459 | if (wacom_wac->features.device_type == BTN_TOOL_FINGER) | |
1460 | wacom_wac->shared->touch_input = wacom_wac->input; | |
1461 | } | |
1462 | ||
3bea733a PC |
1463 | return 0; |
1464 | ||
5d7e7d47 | 1465 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1466 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1467 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1468 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1469 | fail1: kfree(wacom); |
5014186d | 1470 | return error; |
3bea733a PC |
1471 | } |
1472 | ||
1473 | static void wacom_disconnect(struct usb_interface *intf) | |
1474 | { | |
e7224094 | 1475 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1476 | |
1477 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1478 | |
1479 | usb_kill_urb(wacom->irq); | |
16bf288c | 1480 | cancel_work_sync(&wacom->work); |
008f4d9e | 1481 | wacom_unregister_inputs(wacom); |
a1d552cc | 1482 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1483 | wacom_destroy_leds(wacom); |
e7224094 | 1484 | usb_free_urb(wacom->irq); |
997ea58e | 1485 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1486 | wacom->wacom_wac.data, wacom->data_dma); |
1487 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1488 | kfree(wacom); |
1489 | } | |
1490 | ||
1491 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1492 | { | |
1493 | struct wacom *wacom = usb_get_intfdata(intf); | |
1494 | ||
1495 | mutex_lock(&wacom->lock); | |
1496 | usb_kill_urb(wacom->irq); | |
1497 | mutex_unlock(&wacom->lock); | |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | static int wacom_resume(struct usb_interface *intf) | |
1503 | { | |
1504 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1505 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1506 | int rv = 0; |
e7224094 ON |
1507 | |
1508 | mutex_lock(&wacom->lock); | |
38101475 PC |
1509 | |
1510 | /* switch to wacom mode first */ | |
1511 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1512 | wacom_led_control(wacom); |
38101475 | 1513 | |
d4879c9e WY |
1514 | if ((wacom->open || (features->quirks & WACOM_QUIRK_MONITOR)) && |
1515 | usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1516 | rv = -EIO; |
38101475 | 1517 | |
e7224094 ON |
1518 | mutex_unlock(&wacom->lock); |
1519 | ||
1520 | return rv; | |
1521 | } | |
1522 | ||
1523 | static int wacom_reset_resume(struct usb_interface *intf) | |
1524 | { | |
1525 | return wacom_resume(intf); | |
3bea733a PC |
1526 | } |
1527 | ||
1528 | static struct usb_driver wacom_driver = { | |
1529 | .name = "wacom", | |
b036f6fb | 1530 | .id_table = wacom_ids, |
3bea733a PC |
1531 | .probe = wacom_probe, |
1532 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1533 | .suspend = wacom_suspend, |
1534 | .resume = wacom_resume, | |
1535 | .reset_resume = wacom_reset_resume, | |
1536 | .supports_autosuspend = 1, | |
3bea733a PC |
1537 | }; |
1538 | ||
08642e7c | 1539 | module_usb_driver(wacom_driver); |