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Commit | Line | Data |
---|---|---|
3bea733a | 1 | /* |
4104d13f | 2 | * drivers/input/tablet/wacom_sys.c |
3bea733a | 3 | * |
232f5693 | 4 | * USB Wacom tablet support - system specific code |
3bea733a PC |
5 | */ |
6 | ||
7 | /* | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
3bea733a | 14 | #include "wacom_wac.h" |
51269fe8 | 15 | #include "wacom.h" |
3bea733a | 16 | |
545f4e99 PC |
17 | /* defines to get HID report descriptor */ |
18 | #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) | |
19 | #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) | |
20 | #define HID_USAGE_UNDEFINED 0x00 | |
21 | #define HID_USAGE_PAGE 0x05 | |
22 | #define HID_USAGE_PAGE_DIGITIZER 0x0d | |
23 | #define HID_USAGE_PAGE_DESKTOP 0x01 | |
24 | #define HID_USAGE 0x09 | |
25 | #define HID_USAGE_X 0x30 | |
26 | #define HID_USAGE_Y 0x31 | |
27 | #define HID_USAGE_X_TILT 0x3d | |
28 | #define HID_USAGE_Y_TILT 0x3e | |
29 | #define HID_USAGE_FINGER 0x22 | |
30 | #define HID_USAGE_STYLUS 0x20 | |
f393ee2b | 31 | #define HID_USAGE_CONTACTMAX 0x55 |
4134361a CB |
32 | #define HID_COLLECTION 0xa1 |
33 | #define HID_COLLECTION_LOGICAL 0x02 | |
34 | #define HID_COLLECTION_END 0xc0 | |
545f4e99 PC |
35 | |
36 | enum { | |
37 | WCM_UNDEFINED = 0, | |
38 | WCM_DESKTOP, | |
39 | WCM_DIGITIZER, | |
40 | }; | |
41 | ||
42 | struct hid_descriptor { | |
43 | struct usb_descriptor_header header; | |
44 | __le16 bcdHID; | |
45 | u8 bCountryCode; | |
46 | u8 bNumDescriptors; | |
47 | u8 bDescriptorType; | |
48 | __le16 wDescriptorLength; | |
49 | } __attribute__ ((packed)); | |
50 | ||
51 | /* defines to get/set USB message */ | |
3bea733a PC |
52 | #define USB_REQ_GET_REPORT 0x01 |
53 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 54 | |
545f4e99 | 55 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 56 | #define WAC_MSG_RETRIES 5 |
3bea733a | 57 | |
5d7e7d47 EH |
58 | #define WAC_CMD_LED_CONTROL 0x20 |
59 | #define WAC_CMD_ICON_START 0x21 | |
60 | #define WAC_CMD_ICON_XFER 0x23 | |
61 | #define WAC_CMD_RETRIES 10 | |
62 | ||
63 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
64 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 65 | { |
5d7e7d47 EH |
66 | struct usb_device *dev = interface_to_usbdev(intf); |
67 | int retval; | |
68 | ||
69 | do { | |
70 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
71 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
72 | USB_DIR_IN | USB_TYPE_CLASS | |
73 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
74 | (type << 8) + id, |
75 | intf->altsetting[0].desc.bInterfaceNumber, | |
76 | buf, size, 100); | |
77 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
78 | ||
79 | return retval; | |
3bea733a PC |
80 | } |
81 | ||
5d7e7d47 EH |
82 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
83 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 84 | { |
5d7e7d47 EH |
85 | struct usb_device *dev = interface_to_usbdev(intf); |
86 | int retval; | |
87 | ||
88 | do { | |
89 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
90 | USB_REQ_SET_REPORT, | |
91 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
92 | (type << 8) + id, | |
93 | intf->altsetting[0].desc.bInterfaceNumber, | |
94 | buf, size, 1000); | |
95 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
96 | ||
97 | return retval; | |
3bea733a PC |
98 | } |
99 | ||
54c9b226 | 100 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
101 | { |
102 | struct wacom *wacom = urb->context; | |
65e78a20 | 103 | struct device *dev = &wacom->intf->dev; |
3bea733a PC |
104 | int retval; |
105 | ||
106 | switch (urb->status) { | |
107 | case 0: | |
108 | /* success */ | |
109 | break; | |
110 | case -ECONNRESET: | |
111 | case -ENOENT: | |
112 | case -ESHUTDOWN: | |
113 | /* this urb is terminated, clean up */ | |
3b6aee23 GKH |
114 | dev_dbg(dev, "%s - urb shutting down with status: %d\n", |
115 | __func__, urb->status); | |
3bea733a PC |
116 | return; |
117 | default: | |
3b6aee23 GKH |
118 | dev_dbg(dev, "%s - nonzero urb status received: %d\n", |
119 | __func__, urb->status); | |
3bea733a PC |
120 | goto exit; |
121 | } | |
122 | ||
95dd3b30 | 123 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
124 | |
125 | exit: | |
e7224094 | 126 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 127 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a | 128 | if (retval) |
3b6aee23 | 129 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", |
b3169fec | 130 | __func__, retval); |
3bea733a PC |
131 | } |
132 | ||
3bea733a PC |
133 | static int wacom_open(struct input_dev *dev) |
134 | { | |
7791bdae | 135 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 136 | int retval = 0; |
3bea733a | 137 | |
f6cd3783 | 138 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 139 | return -EIO; |
f6cd3783 DT |
140 | |
141 | mutex_lock(&wacom->lock); | |
e7224094 ON |
142 | |
143 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
f6cd3783 DT |
144 | retval = -EIO; |
145 | goto out; | |
e7224094 ON |
146 | } |
147 | ||
51269fe8 | 148 | wacom->open = true; |
e7224094 | 149 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 150 | |
f6cd3783 | 151 | out: |
e7224094 | 152 | mutex_unlock(&wacom->lock); |
62ecae09 | 153 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 154 | return retval; |
3bea733a PC |
155 | } |
156 | ||
157 | static void wacom_close(struct input_dev *dev) | |
158 | { | |
7791bdae | 159 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
160 | int autopm_error; |
161 | ||
162 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 163 | |
e7224094 | 164 | mutex_lock(&wacom->lock); |
3bea733a | 165 | usb_kill_urb(wacom->irq); |
51269fe8 | 166 | wacom->open = false; |
e7224094 ON |
167 | wacom->intf->needs_remote_wakeup = 0; |
168 | mutex_unlock(&wacom->lock); | |
f6cd3783 | 169 | |
62ecae09 DT |
170 | if (!autopm_error) |
171 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
172 | } |
173 | ||
115d5e12 JG |
174 | /* |
175 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
176 | * This function is little more than hidinput_calc_abs_res stripped down. | |
177 | */ | |
178 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
179 | unsigned char unit, unsigned char exponent) | |
180 | { | |
181 | int prev, unit_exponent; | |
182 | ||
183 | /* Check if the extents are sane */ | |
184 | if (logical_extents <= 0 || physical_extents <= 0) | |
185 | return 0; | |
186 | ||
187 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
188 | unit_exponent = exponent; | |
189 | if (unit_exponent > 7) | |
190 | unit_exponent -= 16; | |
191 | ||
192 | /* Convert physical_extents to millimeters */ | |
193 | if (unit == 0x11) { /* If centimeters */ | |
194 | unit_exponent += 1; | |
195 | } else if (unit == 0x13) { /* If inches */ | |
196 | prev = physical_extents; | |
197 | physical_extents *= 254; | |
198 | if (physical_extents < prev) | |
199 | return 0; | |
200 | unit_exponent -= 1; | |
201 | } else { | |
202 | return 0; | |
203 | } | |
204 | ||
205 | /* Apply negative unit exponent */ | |
206 | for (; unit_exponent < 0; unit_exponent++) { | |
207 | prev = logical_extents; | |
208 | logical_extents *= 10; | |
209 | if (logical_extents < prev) | |
210 | return 0; | |
211 | } | |
212 | /* Apply positive unit exponent */ | |
213 | for (; unit_exponent > 0; unit_exponent--) { | |
214 | prev = physical_extents; | |
215 | physical_extents *= 10; | |
216 | if (physical_extents < prev) | |
217 | return 0; | |
218 | } | |
219 | ||
220 | /* Calculate resolution */ | |
221 | return logical_extents / physical_extents; | |
222 | } | |
223 | ||
224 | /* | |
225 | * The physical dimension specified by the HID descriptor is likely not in | |
226 | * the "100th of a mm" units expected by wacom_calculate_touch_res. This | |
227 | * function adjusts the value of [xy]_phy based on the unit and exponent | |
228 | * provided by the HID descriptor. If an error occurs durring conversion | |
229 | * (e.g. from the unit being left unspecified) [xy]_phy is not modified. | |
230 | */ | |
231 | static void wacom_fix_phy_from_hid(struct wacom_features *features) | |
232 | { | |
233 | int xres = wacom_calc_hid_res(features->x_max, features->x_phy, | |
234 | features->unit, features->unitExpo); | |
235 | int yres = wacom_calc_hid_res(features->y_max, features->y_phy, | |
236 | features->unit, features->unitExpo); | |
237 | ||
238 | if (xres > 0 && yres > 0) { | |
239 | features->x_phy = (100 * features->x_max) / xres; | |
240 | features->y_phy = (100 * features->y_max) / yres; | |
241 | } | |
242 | } | |
243 | ||
16bf288c CB |
244 | /* |
245 | * Static values for max X/Y and resolution of Pen interface is stored in | |
246 | * features. This mean physical size of active area can be computed. | |
247 | * This is useful to do when Pen and Touch have same active area of tablet. | |
248 | * This means for Touch device, we only need to find max X/Y value and we | |
249 | * have enough information to compute resolution of touch. | |
250 | */ | |
251 | static void wacom_set_phy_from_res(struct wacom_features *features) | |
252 | { | |
253 | features->x_phy = (features->x_max * 100) / features->x_resolution; | |
254 | features->y_phy = (features->y_max * 100) / features->y_resolution; | |
255 | } | |
256 | ||
4134361a CB |
257 | static int wacom_parse_logical_collection(unsigned char *report, |
258 | struct wacom_features *features) | |
259 | { | |
260 | int length = 0; | |
261 | ||
262 | if (features->type == BAMBOO_PT) { | |
263 | ||
264 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
265 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 266 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 267 | |
16bf288c | 268 | wacom_set_phy_from_res(features); |
4134361a CB |
269 | |
270 | features->x_max = features->y_max = | |
271 | get_unaligned_le16(&report[10]); | |
272 | ||
273 | length = 11; | |
274 | } | |
275 | return length; | |
276 | } | |
277 | ||
f393ee2b PC |
278 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
279 | struct wacom_features *features) | |
280 | { | |
281 | int result = 0; | |
282 | unsigned char *rep_data; | |
283 | ||
284 | rep_data = kmalloc(2, GFP_KERNEL); | |
285 | if (rep_data) { | |
286 | ||
287 | rep_data[0] = 12; | |
288 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 289 | rep_data[0], rep_data, 2, |
f393ee2b PC |
290 | WAC_MSG_RETRIES); |
291 | ||
292 | if (result >= 0 && rep_data[1] > 2) | |
293 | features->touch_max = rep_data[1]; | |
294 | ||
295 | kfree(rep_data); | |
296 | } | |
297 | } | |
298 | ||
428f8588 CB |
299 | /* |
300 | * Interface Descriptor of wacom devices can be incomplete and | |
301 | * inconsistent so wacom_features table is used to store stylus | |
302 | * device's packet lengths, various maximum values, and tablet | |
303 | * resolution based on product ID's. | |
304 | * | |
305 | * For devices that contain 2 interfaces, wacom_features table is | |
306 | * inaccurate for the touch interface. Since the Interface Descriptor | |
307 | * for touch interfaces has pretty complete data, this function exists | |
308 | * to query tablet for this missing information instead of hard coding in | |
309 | * an additional table. | |
310 | * | |
311 | * A typical Interface Descriptor for a stylus will contain a | |
312 | * boot mouse application collection that is not of interest and this | |
313 | * function will ignore it. | |
314 | * | |
315 | * It also contains a digitizer application collection that also is not | |
316 | * of interest since any information it contains would be duplicate | |
317 | * of what is in wacom_features. Usually it defines a report of an array | |
318 | * of bytes that could be used as max length of the stylus packet returned. | |
319 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
320 | * the X and Y logical values contain valid data but it is ignored. | |
321 | * | |
322 | * A typical Interface Descriptor for a touch interface will contain a | |
323 | * Digitizer-Finger Physical Collection which will define both logical | |
324 | * X/Y maximum as well as the physical size of tablet. Since touch | |
325 | * interfaces haven't supported pressure or distance, this is enough | |
326 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
327 | * |
328 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
329 | * Collection. Instead they define a Logical Collection with a single | |
330 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
331 | * |
332 | * Intuos5 touch interface does not contain useful data. We deal with | |
333 | * this after returning from this function. | |
428f8588 CB |
334 | */ |
335 | static int wacom_parse_hid(struct usb_interface *intf, | |
336 | struct hid_descriptor *hid_desc, | |
ec67bbed | 337 | struct wacom_features *features) |
545f4e99 PC |
338 | { |
339 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
340 | char limit = 0; |
341 | /* result has to be defined as int for some devices */ | |
342 | int result = 0; | |
545f4e99 PC |
343 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
344 | unsigned char *report; | |
345 | ||
346 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
347 | if (!report) | |
348 | return -ENOMEM; | |
349 | ||
350 | /* retrive report descriptors */ | |
351 | do { | |
352 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
353 | USB_REQ_GET_DESCRIPTOR, | |
354 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
355 | HID_DEVICET_REPORT << 8, | |
356 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
357 | report, | |
358 | hid_desc->wDescriptorLength, | |
359 | 5000); /* 5 secs */ | |
a417ea44 | 360 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 361 | |
384318ec | 362 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
363 | if (result < 0) |
364 | goto out; | |
365 | ||
366 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
367 | ||
368 | switch (report[i]) { | |
369 | case HID_USAGE_PAGE: | |
370 | switch (report[i + 1]) { | |
371 | case HID_USAGE_PAGE_DIGITIZER: | |
372 | usage = WCM_DIGITIZER; | |
373 | i++; | |
374 | break; | |
375 | ||
376 | case HID_USAGE_PAGE_DESKTOP: | |
377 | usage = WCM_DESKTOP; | |
378 | i++; | |
379 | break; | |
380 | } | |
381 | break; | |
382 | ||
383 | case HID_USAGE: | |
384 | switch (report[i + 1]) { | |
385 | case HID_USAGE_X: | |
386 | if (usage == WCM_DESKTOP) { | |
387 | if (finger) { | |
84eb5aa6 | 388 | features->device_type = BTN_TOOL_FINGER; |
ec67bbed PC |
389 | if (features->type == TABLETPC2FG) { |
390 | /* need to reset back */ | |
391 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
ec67bbed | 392 | } |
1963518b PC |
393 | |
394 | if (features->type == MTSCREEN) | |
395 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
396 | ||
4a88081e PC |
397 | if (features->type == BAMBOO_PT) { |
398 | /* need to reset back */ | |
399 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
4a88081e PC |
400 | features->x_phy = |
401 | get_unaligned_le16(&report[i + 5]); | |
402 | features->x_max = | |
403 | get_unaligned_le16(&report[i + 8]); | |
404 | i += 15; | |
405 | } else { | |
406 | features->x_max = | |
407 | get_unaligned_le16(&report[i + 3]); | |
408 | features->x_phy = | |
409 | get_unaligned_le16(&report[i + 6]); | |
410 | features->unit = report[i + 9]; | |
411 | features->unitExpo = report[i + 11]; | |
412 | i += 12; | |
413 | } | |
545f4e99 | 414 | } else if (pen) { |
ec67bbed PC |
415 | /* penabled only accepts exact bytes of data */ |
416 | if (features->type == TABLETPC2FG) | |
57e413d9 | 417 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 418 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 419 | features->x_max = |
252f7769 | 420 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
421 | i += 4; |
422 | } | |
545f4e99 PC |
423 | } |
424 | break; | |
425 | ||
426 | case HID_USAGE_Y: | |
ec67bbed PC |
427 | if (usage == WCM_DESKTOP) { |
428 | if (finger) { | |
1963518b PC |
429 | int type = features->type; |
430 | ||
431 | if (type == TABLETPC2FG || type == MTSCREEN) { | |
ec67bbed | 432 | features->y_max = |
252f7769 | 433 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 434 | features->y_phy = |
252f7769 | 435 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 436 | i += 7; |
1963518b | 437 | } else if (type == BAMBOO_PT) { |
4a88081e PC |
438 | features->y_phy = |
439 | get_unaligned_le16(&report[i + 3]); | |
440 | features->y_max = | |
441 | get_unaligned_le16(&report[i + 6]); | |
442 | i += 12; | |
ec67bbed PC |
443 | } else { |
444 | features->y_max = | |
445 | features->x_max; | |
446 | features->y_phy = | |
252f7769 | 447 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
448 | i += 4; |
449 | } | |
450 | } else if (pen) { | |
ec67bbed | 451 | features->y_max = |
252f7769 | 452 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
453 | i += 4; |
454 | } | |
455 | } | |
545f4e99 PC |
456 | break; |
457 | ||
458 | case HID_USAGE_FINGER: | |
459 | finger = 1; | |
460 | i++; | |
461 | break; | |
462 | ||
428f8588 CB |
463 | /* |
464 | * Requiring Stylus Usage will ignore boot mouse | |
465 | * X/Y values and some cases of invalid Digitizer X/Y | |
466 | * values commonly reported. | |
467 | */ | |
545f4e99 PC |
468 | case HID_USAGE_STYLUS: |
469 | pen = 1; | |
470 | i++; | |
471 | break; | |
f393ee2b PC |
472 | |
473 | case HID_USAGE_CONTACTMAX: | |
1cecc5cc PC |
474 | /* leave touch_max as is if predefined */ |
475 | if (!features->touch_max) | |
476 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
477 | i++; |
478 | break; | |
545f4e99 PC |
479 | } |
480 | break; | |
481 | ||
4134361a | 482 | case HID_COLLECTION_END: |
ec67bbed | 483 | /* reset UsagePage and Finger */ |
545f4e99 PC |
484 | finger = usage = 0; |
485 | break; | |
4134361a CB |
486 | |
487 | case HID_COLLECTION: | |
488 | i++; | |
489 | switch (report[i]) { | |
490 | case HID_COLLECTION_LOGICAL: | |
491 | i += wacom_parse_logical_collection(&report[i], | |
492 | features); | |
493 | break; | |
494 | } | |
495 | break; | |
545f4e99 PC |
496 | } |
497 | } | |
498 | ||
545f4e99 | 499 | out: |
384318ec | 500 | result = 0; |
545f4e99 PC |
501 | kfree(report); |
502 | return result; | |
503 | } | |
504 | ||
fe494bc2 | 505 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
506 | { |
507 | unsigned char *rep_data; | |
fe494bc2 | 508 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 509 | |
fe494bc2 | 510 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 511 | if (!rep_data) |
ec67bbed PC |
512 | return error; |
513 | ||
fe494bc2 JG |
514 | rep_data[0] = report_id; |
515 | rep_data[1] = mode; | |
516 | ||
517 | do { | |
518 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, | |
519 | report_id, rep_data, length, 1); | |
520 | if (error >= 0) | |
521 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
522 | report_id, rep_data, length, 1); | |
523 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); | |
524 | ||
525 | kfree(rep_data); | |
526 | ||
527 | return error < 0 ? error : 0; | |
528 | } | |
529 | ||
530 | /* | |
531 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
532 | * typically configured to power-up in a mode which sends mouse-like | |
533 | * reports to the OS. To get absolute position, pressure data, etc. | |
534 | * from the tablet, it is necessary to switch the tablet out of this | |
535 | * mode and into one which sends the full range of tablet data. | |
536 | */ | |
537 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
538 | { | |
1963518b | 539 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 540 | if (features->type > TABLETPC) { |
fe494bc2 JG |
541 | /* MT Tablet PC touch */ |
542 | return wacom_set_device_mode(intf, 3, 4, 4); | |
543 | } | |
544 | } else if (features->device_type == BTN_TOOL_PEN) { | |
545 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
546 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 547 | } |
ec67bbed | 548 | } |
3b7307c2 | 549 | |
fe494bc2 | 550 | return 0; |
3b7307c2 DT |
551 | } |
552 | ||
ec67bbed | 553 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 554 | struct wacom_features *features) |
ec67bbed PC |
555 | { |
556 | int error = 0; | |
557 | struct usb_host_interface *interface = intf->cur_altsetting; | |
558 | struct hid_descriptor *hid_desc; | |
559 | ||
fed87e65 | 560 | /* default features */ |
ec67bbed | 561 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
562 | features->x_fuzz = 4; |
563 | features->y_fuzz = 4; | |
564 | features->pressure_fuzz = 0; | |
565 | features->distance_fuzz = 0; | |
ec67bbed | 566 | |
d3825d51 CB |
567 | /* |
568 | * The wireless device HID is basic and layout conflicts with | |
569 | * other tablets (monitor and touch interface can look like pen). | |
570 | * Skip the query for this type and modify defaults based on | |
571 | * interface number. | |
572 | */ | |
573 | if (features->type == WIRELESS) { | |
574 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
575 | features->device_type = 0; | |
576 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 577 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
578 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
579 | } | |
580 | } | |
581 | ||
1963518b | 582 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 583 | if (features->type < BAMBOO_PT) { |
ec67bbed | 584 | goto out; |
1963518b | 585 | } |
ec67bbed | 586 | |
a882c932 DT |
587 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
588 | if (error) { | |
589 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
590 | HID_DEVICET_REPORT, &hid_desc); | |
591 | if (error) { | |
eb71d1bb DT |
592 | dev_err(&intf->dev, |
593 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
594 | goto out; |
595 | } | |
596 | } | |
597 | error = wacom_parse_hid(intf, hid_desc, features); | |
598 | if (error) | |
599 | goto out; | |
115d5e12 | 600 | wacom_fix_phy_from_hid(features); |
ec67bbed | 601 | |
ec67bbed PC |
602 | out: |
603 | return error; | |
604 | } | |
605 | ||
4492efff PC |
606 | struct wacom_usbdev_data { |
607 | struct list_head list; | |
608 | struct kref kref; | |
609 | struct usb_device *dev; | |
610 | struct wacom_shared shared; | |
611 | }; | |
612 | ||
613 | static LIST_HEAD(wacom_udev_list); | |
614 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
615 | ||
aea2bf6a JG |
616 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
617 | { | |
618 | int port1; | |
619 | struct usb_device *sibling; | |
620 | ||
621 | if (vendor == 0 && product == 0) | |
622 | return dev; | |
623 | ||
624 | if (dev->parent == NULL) | |
625 | return NULL; | |
626 | ||
627 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
628 | struct usb_device_descriptor *d; | |
629 | if (sibling == NULL) | |
630 | continue; | |
631 | ||
632 | d = &sibling->descriptor; | |
633 | if (d->idVendor == vendor && d->idProduct == product) | |
634 | return sibling; | |
635 | } | |
636 | ||
637 | return NULL; | |
638 | } | |
639 | ||
4492efff PC |
640 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
641 | { | |
642 | struct wacom_usbdev_data *data; | |
643 | ||
644 | list_for_each_entry(data, &wacom_udev_list, list) { | |
645 | if (data->dev == dev) { | |
646 | kref_get(&data->kref); | |
647 | return data; | |
648 | } | |
649 | } | |
650 | ||
651 | return NULL; | |
652 | } | |
653 | ||
654 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
655 | struct usb_device *dev) | |
656 | { | |
657 | struct wacom_usbdev_data *data; | |
658 | int retval = 0; | |
659 | ||
660 | mutex_lock(&wacom_udev_list_lock); | |
661 | ||
662 | data = wacom_get_usbdev_data(dev); | |
663 | if (!data) { | |
664 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
665 | if (!data) { | |
666 | retval = -ENOMEM; | |
667 | goto out; | |
668 | } | |
669 | ||
670 | kref_init(&data->kref); | |
671 | data->dev = dev; | |
672 | list_add_tail(&data->list, &wacom_udev_list); | |
673 | } | |
674 | ||
675 | wacom->shared = &data->shared; | |
676 | ||
677 | out: | |
678 | mutex_unlock(&wacom_udev_list_lock); | |
679 | return retval; | |
680 | } | |
681 | ||
682 | static void wacom_release_shared_data(struct kref *kref) | |
683 | { | |
684 | struct wacom_usbdev_data *data = | |
685 | container_of(kref, struct wacom_usbdev_data, kref); | |
686 | ||
687 | mutex_lock(&wacom_udev_list_lock); | |
688 | list_del(&data->list); | |
689 | mutex_unlock(&wacom_udev_list_lock); | |
690 | ||
691 | kfree(data); | |
692 | } | |
693 | ||
694 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
695 | { | |
696 | struct wacom_usbdev_data *data; | |
697 | ||
698 | if (wacom->shared) { | |
699 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
700 | kref_put(&data->kref, wacom_release_shared_data); | |
701 | wacom->shared = NULL; | |
702 | } | |
703 | } | |
704 | ||
5d7e7d47 EH |
705 | static int wacom_led_control(struct wacom *wacom) |
706 | { | |
707 | unsigned char *buf; | |
9b5b95dd | 708 | int retval; |
5d7e7d47 EH |
709 | |
710 | buf = kzalloc(9, GFP_KERNEL); | |
711 | if (!buf) | |
712 | return -ENOMEM; | |
713 | ||
9b5b95dd JG |
714 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
715 | wacom->wacom_wac.features.type <= INTUOS5L) { | |
716 | /* | |
717 | * Touch Ring and crop mark LED luminance may take on | |
718 | * one of four values: | |
719 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
720 | */ | |
721 | int ring_led = wacom->led.select[0] & 0x03; | |
722 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
723 | int crop_lum = 0; | |
724 | ||
725 | buf[0] = WAC_CMD_LED_CONTROL; | |
726 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
727 | } | |
728 | else { | |
729 | int led = wacom->led.select[0] | 0x4; | |
730 | ||
731 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
732 | wacom->wacom_wac.features.type == WACOM_24HD) | |
733 | led |= (wacom->led.select[1] << 4) | 0x40; | |
734 | ||
735 | buf[0] = WAC_CMD_LED_CONTROL; | |
736 | buf[1] = led; | |
737 | buf[2] = wacom->led.llv; | |
738 | buf[3] = wacom->led.hlv; | |
739 | buf[4] = wacom->led.img_lum; | |
740 | } | |
5d7e7d47 EH |
741 | |
742 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
743 | buf, 9, WAC_CMD_RETRIES); | |
744 | kfree(buf); | |
745 | ||
746 | return retval; | |
747 | } | |
748 | ||
749 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
750 | { | |
751 | unsigned char *buf; | |
752 | int i, retval; | |
753 | ||
754 | buf = kzalloc(259, GFP_KERNEL); | |
755 | if (!buf) | |
756 | return -ENOMEM; | |
757 | ||
758 | /* Send 'start' command */ | |
759 | buf[0] = WAC_CMD_ICON_START; | |
760 | buf[1] = 1; | |
761 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
762 | buf, 2, WAC_CMD_RETRIES); | |
763 | if (retval < 0) | |
764 | goto out; | |
765 | ||
766 | buf[0] = WAC_CMD_ICON_XFER; | |
767 | buf[1] = button_id & 0x07; | |
768 | for (i = 0; i < 4; i++) { | |
769 | buf[2] = i; | |
770 | memcpy(buf + 3, img + i * 256, 256); | |
771 | ||
772 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
773 | buf, 259, WAC_CMD_RETRIES); | |
774 | if (retval < 0) | |
775 | break; | |
776 | } | |
777 | ||
778 | /* Send 'stop' */ | |
779 | buf[0] = WAC_CMD_ICON_START; | |
780 | buf[1] = 0; | |
781 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
782 | buf, 2, WAC_CMD_RETRIES); | |
783 | ||
784 | out: | |
785 | kfree(buf); | |
786 | return retval; | |
787 | } | |
788 | ||
09e7d941 | 789 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
790 | const char *buf, size_t count) |
791 | { | |
792 | struct wacom *wacom = dev_get_drvdata(dev); | |
793 | unsigned int id; | |
794 | int err; | |
795 | ||
796 | err = kstrtouint(buf, 10, &id); | |
797 | if (err) | |
798 | return err; | |
799 | ||
800 | mutex_lock(&wacom->lock); | |
801 | ||
09e7d941 | 802 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
803 | err = wacom_led_control(wacom); |
804 | ||
805 | mutex_unlock(&wacom->lock); | |
806 | ||
807 | return err < 0 ? err : count; | |
808 | } | |
809 | ||
09e7d941 PC |
810 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
811 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
812 | struct device_attribute *attr, const char *buf, size_t count) \ | |
813 | { \ | |
814 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
815 | } \ | |
04c59abd PC |
816 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
817 | struct device_attribute *attr, char *buf) \ | |
818 | { \ | |
819 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
820 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
821 | } \ | |
822 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
823 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
824 | wacom_led##SET_ID##_select_store) |
825 | ||
826 | DEVICE_LED_SELECT_ATTR(0); | |
827 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
828 | |
829 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
830 | const char *buf, size_t count) | |
831 | { | |
832 | unsigned int value; | |
833 | int err; | |
834 | ||
835 | err = kstrtouint(buf, 10, &value); | |
836 | if (err) | |
837 | return err; | |
838 | ||
839 | mutex_lock(&wacom->lock); | |
840 | ||
841 | *dest = value & 0x7f; | |
842 | err = wacom_led_control(wacom); | |
843 | ||
844 | mutex_unlock(&wacom->lock); | |
845 | ||
846 | return err < 0 ? err : count; | |
847 | } | |
848 | ||
849 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
850 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
851 | struct device_attribute *attr, const char *buf, size_t count) \ | |
852 | { \ | |
853 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
854 | \ | |
855 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
856 | buf, count); \ | |
857 | } \ | |
858 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
859 | NULL, wacom_##name##_luminance_store) | |
860 | ||
861 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
862 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
863 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
864 | ||
865 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
866 | const char *buf, size_t count) | |
867 | { | |
868 | struct wacom *wacom = dev_get_drvdata(dev); | |
869 | int err; | |
870 | ||
871 | if (count != 1024) | |
872 | return -EINVAL; | |
873 | ||
874 | mutex_lock(&wacom->lock); | |
875 | ||
876 | err = wacom_led_putimage(wacom, button_id, buf); | |
877 | ||
878 | mutex_unlock(&wacom->lock); | |
879 | ||
880 | return err < 0 ? err : count; | |
881 | } | |
882 | ||
883 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
884 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
885 | struct device_attribute *attr, const char *buf, size_t count) \ | |
886 | { \ | |
887 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
888 | } \ | |
889 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
890 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
891 | ||
892 | DEVICE_BTNIMG_ATTR(0); | |
893 | DEVICE_BTNIMG_ATTR(1); | |
894 | DEVICE_BTNIMG_ATTR(2); | |
895 | DEVICE_BTNIMG_ATTR(3); | |
896 | DEVICE_BTNIMG_ATTR(4); | |
897 | DEVICE_BTNIMG_ATTR(5); | |
898 | DEVICE_BTNIMG_ATTR(6); | |
899 | DEVICE_BTNIMG_ATTR(7); | |
900 | ||
09e7d941 PC |
901 | static struct attribute *cintiq_led_attrs[] = { |
902 | &dev_attr_status_led0_select.attr, | |
903 | &dev_attr_status_led1_select.attr, | |
904 | NULL | |
905 | }; | |
906 | ||
907 | static struct attribute_group cintiq_led_attr_group = { | |
908 | .name = "wacom_led", | |
909 | .attrs = cintiq_led_attrs, | |
910 | }; | |
911 | ||
912 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
913 | &dev_attr_status0_luminance.attr, |
914 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 915 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
916 | &dev_attr_buttons_luminance.attr, |
917 | &dev_attr_button0_rawimg.attr, | |
918 | &dev_attr_button1_rawimg.attr, | |
919 | &dev_attr_button2_rawimg.attr, | |
920 | &dev_attr_button3_rawimg.attr, | |
921 | &dev_attr_button4_rawimg.attr, | |
922 | &dev_attr_button5_rawimg.attr, | |
923 | &dev_attr_button6_rawimg.attr, | |
924 | &dev_attr_button7_rawimg.attr, | |
925 | NULL | |
926 | }; | |
927 | ||
09e7d941 | 928 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 929 | .name = "wacom_led", |
09e7d941 | 930 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
931 | }; |
932 | ||
9b5b95dd JG |
933 | static struct attribute *intuos5_led_attrs[] = { |
934 | &dev_attr_status0_luminance.attr, | |
935 | &dev_attr_status_led0_select.attr, | |
936 | NULL | |
937 | }; | |
938 | ||
939 | static struct attribute_group intuos5_led_attr_group = { | |
940 | .name = "wacom_led", | |
941 | .attrs = intuos5_led_attrs, | |
942 | }; | |
943 | ||
5d7e7d47 EH |
944 | static int wacom_initialize_leds(struct wacom *wacom) |
945 | { | |
946 | int error; | |
947 | ||
09e7d941 PC |
948 | /* Initialize default values */ |
949 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 950 | case INTUOS4S: |
09e7d941 PC |
951 | case INTUOS4: |
952 | case INTUOS4L: | |
953 | wacom->led.select[0] = 0; | |
954 | wacom->led.select[1] = 0; | |
f4fa9a6d | 955 | wacom->led.llv = 10; |
5d7e7d47 EH |
956 | wacom->led.hlv = 20; |
957 | wacom->led.img_lum = 10; | |
09e7d941 PC |
958 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
959 | &intuos4_led_attr_group); | |
960 | break; | |
961 | ||
246835fc | 962 | case WACOM_24HD: |
09e7d941 PC |
963 | case WACOM_21UX2: |
964 | wacom->led.select[0] = 0; | |
965 | wacom->led.select[1] = 0; | |
966 | wacom->led.llv = 0; | |
967 | wacom->led.hlv = 0; | |
968 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
969 | |
970 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
971 | &cintiq_led_attr_group); |
972 | break; | |
973 | ||
9b5b95dd JG |
974 | case INTUOS5S: |
975 | case INTUOS5: | |
976 | case INTUOS5L: | |
977 | wacom->led.select[0] = 0; | |
978 | wacom->led.select[1] = 0; | |
979 | wacom->led.llv = 32; | |
980 | wacom->led.hlv = 0; | |
981 | wacom->led.img_lum = 0; | |
982 | ||
983 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
984 | &intuos5_led_attr_group); | |
985 | break; | |
986 | ||
09e7d941 PC |
987 | default: |
988 | return 0; | |
5d7e7d47 EH |
989 | } |
990 | ||
09e7d941 PC |
991 | if (error) { |
992 | dev_err(&wacom->intf->dev, | |
993 | "cannot create sysfs group err: %d\n", error); | |
994 | return error; | |
995 | } | |
996 | wacom_led_control(wacom); | |
997 | ||
5d7e7d47 EH |
998 | return 0; |
999 | } | |
1000 | ||
1001 | static void wacom_destroy_leds(struct wacom *wacom) | |
1002 | { | |
09e7d941 | 1003 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 1004 | case INTUOS4S: |
09e7d941 PC |
1005 | case INTUOS4: |
1006 | case INTUOS4L: | |
5d7e7d47 | 1007 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
1008 | &intuos4_led_attr_group); |
1009 | break; | |
1010 | ||
246835fc | 1011 | case WACOM_24HD: |
09e7d941 PC |
1012 | case WACOM_21UX2: |
1013 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1014 | &cintiq_led_attr_group); | |
1015 | break; | |
9b5b95dd JG |
1016 | |
1017 | case INTUOS5S: | |
1018 | case INTUOS5: | |
1019 | case INTUOS5L: | |
1020 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1021 | &intuos5_led_attr_group); | |
1022 | break; | |
5d7e7d47 EH |
1023 | } |
1024 | } | |
1025 | ||
a1d552cc CB |
1026 | static enum power_supply_property wacom_battery_props[] = { |
1027 | POWER_SUPPLY_PROP_CAPACITY | |
1028 | }; | |
1029 | ||
1030 | static int wacom_battery_get_property(struct power_supply *psy, | |
1031 | enum power_supply_property psp, | |
1032 | union power_supply_propval *val) | |
1033 | { | |
1034 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1035 | int ret = 0; | |
1036 | ||
1037 | switch (psp) { | |
1038 | case POWER_SUPPLY_PROP_CAPACITY: | |
1039 | val->intval = | |
1040 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1041 | break; | |
1042 | default: | |
1043 | ret = -EINVAL; | |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | return ret; | |
1048 | } | |
1049 | ||
1050 | static int wacom_initialize_battery(struct wacom *wacom) | |
1051 | { | |
1052 | int error = 0; | |
1053 | ||
1054 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1055 | wacom->battery.properties = wacom_battery_props; | |
1056 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1057 | wacom->battery.get_property = wacom_battery_get_property; | |
1058 | wacom->battery.name = "wacom_battery"; | |
1059 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1060 | wacom->battery.use_for_apm = 0; | |
1061 | ||
1062 | error = power_supply_register(&wacom->usbdev->dev, | |
1063 | &wacom->battery); | |
b7af2bb8 CB |
1064 | |
1065 | if (!error) | |
1066 | power_supply_powers(&wacom->battery, | |
1067 | &wacom->usbdev->dev); | |
a1d552cc CB |
1068 | } |
1069 | ||
1070 | return error; | |
1071 | } | |
1072 | ||
1073 | static void wacom_destroy_battery(struct wacom *wacom) | |
1074 | { | |
b7af2bb8 CB |
1075 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1076 | wacom->battery.dev) { | |
a1d552cc | 1077 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1078 | wacom->battery.dev = NULL; |
1079 | } | |
a1d552cc CB |
1080 | } |
1081 | ||
3aac0ef1 CB |
1082 | static int wacom_register_input(struct wacom *wacom) |
1083 | { | |
1084 | struct input_dev *input_dev; | |
1085 | struct usb_interface *intf = wacom->intf; | |
1086 | struct usb_device *dev = interface_to_usbdev(intf); | |
1087 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1088 | int error; | |
1089 | ||
1090 | input_dev = input_allocate_device(); | |
1963518b PC |
1091 | if (!input_dev) { |
1092 | error = -ENOMEM; | |
1093 | goto fail1; | |
1094 | } | |
3aac0ef1 CB |
1095 | |
1096 | input_dev->name = wacom_wac->name; | |
1097 | input_dev->dev.parent = &intf->dev; | |
1098 | input_dev->open = wacom_open; | |
1099 | input_dev->close = wacom_close; | |
1100 | usb_to_input_id(dev, &input_dev->id); | |
1101 | input_set_drvdata(input_dev, wacom); | |
1102 | ||
1103 | wacom_wac->input = input_dev; | |
1963518b PC |
1104 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1105 | if (error) | |
1106 | goto fail1; | |
3aac0ef1 CB |
1107 | |
1108 | error = input_register_device(input_dev); | |
1963518b PC |
1109 | if (error) |
1110 | goto fail2; | |
1111 | ||
1112 | return 0; | |
3aac0ef1 | 1113 | |
1963518b PC |
1114 | fail2: |
1115 | input_free_device(input_dev); | |
1116 | wacom_wac->input = NULL; | |
1117 | fail1: | |
3aac0ef1 CB |
1118 | return error; |
1119 | } | |
1120 | ||
16bf288c CB |
1121 | static void wacom_wireless_work(struct work_struct *work) |
1122 | { | |
1123 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1124 | struct usb_device *usbdev = wacom->usbdev; | |
1125 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1126 | struct wacom *wacom1, *wacom2; |
1127 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1128 | int error; | |
16bf288c CB |
1129 | |
1130 | /* | |
1131 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1132 | * remove any existing input and battery devices. |
16bf288c CB |
1133 | */ |
1134 | ||
b7af2bb8 CB |
1135 | wacom_destroy_battery(wacom); |
1136 | ||
16bf288c | 1137 | /* Stylus interface */ |
b7af2bb8 CB |
1138 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1139 | wacom_wac1 = &(wacom1->wacom_wac); | |
1140 | if (wacom_wac1->input) | |
1141 | input_unregister_device(wacom_wac1->input); | |
1142 | wacom_wac1->input = NULL; | |
16bf288c CB |
1143 | |
1144 | /* Touch interface */ | |
b7af2bb8 CB |
1145 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1146 | wacom_wac2 = &(wacom2->wacom_wac); | |
1147 | if (wacom_wac2->input) | |
1148 | input_unregister_device(wacom_wac2->input); | |
1149 | wacom_wac2->input = NULL; | |
16bf288c CB |
1150 | |
1151 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1152 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1153 | } else { |
1154 | const struct usb_device_id *id = wacom_ids; | |
1155 | ||
eb71d1bb DT |
1156 | dev_info(&wacom->intf->dev, |
1157 | "wireless tablet connected with PID %x\n", | |
1158 | wacom_wac->pid); | |
16bf288c CB |
1159 | |
1160 | while (id->match_flags) { | |
1161 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1162 | id->idProduct == wacom_wac->pid) | |
1163 | break; | |
1164 | id++; | |
1165 | } | |
1166 | ||
1167 | if (!id->match_flags) { | |
eb71d1bb DT |
1168 | dev_info(&wacom->intf->dev, |
1169 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1170 | return; |
1171 | } | |
1172 | ||
1173 | /* Stylus interface */ | |
b7af2bb8 | 1174 | wacom_wac1->features = |
16bf288c | 1175 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1176 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
1177 | error = wacom_register_input(wacom1); | |
1178 | if (error) | |
1179 | goto fail1; | |
16bf288c CB |
1180 | |
1181 | /* Touch interface */ | |
b7af2bb8 | 1182 | wacom_wac2->features = |
16bf288c | 1183 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1184 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1185 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1186 | wacom_set_phy_from_res(&wacom_wac2->features); | |
1187 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1188 | error = wacom_register_input(wacom2); | |
1189 | if (error) | |
1190 | goto fail2; | |
1191 | ||
1192 | error = wacom_initialize_battery(wacom); | |
1193 | if (error) | |
1194 | goto fail3; | |
16bf288c | 1195 | } |
b7af2bb8 CB |
1196 | |
1197 | return; | |
1198 | ||
1199 | fail3: | |
1200 | input_unregister_device(wacom_wac2->input); | |
1201 | wacom_wac2->input = NULL; | |
1202 | fail2: | |
1203 | input_unregister_device(wacom_wac1->input); | |
1204 | wacom_wac1->input = NULL; | |
1205 | fail1: | |
1206 | return; | |
16bf288c CB |
1207 | } |
1208 | ||
3bea733a PC |
1209 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1210 | { | |
1211 | struct usb_device *dev = interface_to_usbdev(intf); | |
1212 | struct usb_endpoint_descriptor *endpoint; | |
1213 | struct wacom *wacom; | |
1214 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1215 | struct wacom_features *features; |
e33da8a5 | 1216 | int error; |
3bea733a | 1217 | |
e33da8a5 | 1218 | if (!id->driver_info) |
b036f6fb BB |
1219 | return -EINVAL; |
1220 | ||
3bea733a | 1221 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1222 | if (!wacom) |
1223 | return -ENOMEM; | |
e33da8a5 | 1224 | |
51269fe8 | 1225 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1226 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1227 | features = &wacom_wac->features; | |
1228 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1229 | error = -EINVAL; | |
3bea733a | 1230 | goto fail1; |
e33da8a5 | 1231 | } |
3bea733a | 1232 | |
997ea58e DM |
1233 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1234 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1235 | if (!wacom_wac->data) { |
1236 | error = -ENOMEM; | |
3bea733a | 1237 | goto fail1; |
e33da8a5 | 1238 | } |
3bea733a PC |
1239 | |
1240 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1241 | if (!wacom->irq) { |
1242 | error = -ENOMEM; | |
3bea733a | 1243 | goto fail2; |
e33da8a5 | 1244 | } |
3bea733a PC |
1245 | |
1246 | wacom->usbdev = dev; | |
e7224094 ON |
1247 | wacom->intf = intf; |
1248 | mutex_init(&wacom->lock); | |
16bf288c | 1249 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1250 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1251 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1252 | ||
545f4e99 PC |
1253 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1254 | ||
f393ee2b | 1255 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1256 | error = wacom_retrieve_hid_descriptor(intf, features); |
1257 | if (error) | |
4b6d4434 | 1258 | goto fail3; |
545f4e99 | 1259 | |
ae584ca4 JG |
1260 | /* |
1261 | * Intuos5 has no useful data about its touch interface in its | |
1262 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1263 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1264 | */ | |
1265 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { | |
1266 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { | |
1267 | features->device_type = BTN_TOOL_FINGER; | |
1268 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1269 | ||
32edbf56 | 1270 | wacom_set_phy_from_res(features); |
ae584ca4 JG |
1271 | |
1272 | features->x_max = 4096; | |
1273 | features->y_max = 4096; | |
1274 | } else { | |
1275 | features->device_type = BTN_TOOL_PEN; | |
1276 | } | |
1277 | } | |
1278 | ||
bc73dd39 HR |
1279 | wacom_setup_device_quirks(features); |
1280 | ||
49b764ae PC |
1281 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1282 | ||
bc73dd39 | 1283 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1284 | struct usb_device *other_dev; |
1285 | ||
49b764ae PC |
1286 | /* Append the device type to the name */ |
1287 | strlcat(wacom_wac->name, | |
1288 | features->device_type == BTN_TOOL_PEN ? | |
1289 | " Pen" : " Finger", | |
1290 | sizeof(wacom_wac->name)); | |
4492efff | 1291 | |
aea2bf6a JG |
1292 | |
1293 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); | |
1294 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1295 | other_dev = dev; | |
1296 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff PC |
1297 | if (error) |
1298 | goto fail3; | |
49b764ae PC |
1299 | } |
1300 | ||
3bea733a PC |
1301 | usb_fill_int_urb(wacom->irq, dev, |
1302 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1303 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1304 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1305 | wacom->irq->transfer_dma = wacom->data_dma; |
1306 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1307 | ||
5d7e7d47 | 1308 | error = wacom_initialize_leds(wacom); |
5014186d | 1309 | if (error) |
4492efff | 1310 | goto fail4; |
3bea733a | 1311 | |
d3825d51 CB |
1312 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1313 | error = wacom_register_input(wacom); | |
1314 | if (error) | |
b7af2bb8 | 1315 | goto fail5; |
d3825d51 | 1316 | } |
5d7e7d47 | 1317 | |
ec67bbed PC |
1318 | /* Note that if query fails it is not a hard failure */ |
1319 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1320 | |
1321 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1322 | |
1323 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
1324 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) | |
1325 | goto fail5; | |
1326 | } | |
1327 | ||
3bea733a PC |
1328 | return 0; |
1329 | ||
5d7e7d47 | 1330 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1331 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1332 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1333 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1334 | fail1: kfree(wacom); |
5014186d | 1335 | return error; |
3bea733a PC |
1336 | } |
1337 | ||
1338 | static void wacom_disconnect(struct usb_interface *intf) | |
1339 | { | |
e7224094 | 1340 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1341 | |
1342 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1343 | |
1344 | usb_kill_urb(wacom->irq); | |
16bf288c | 1345 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1346 | if (wacom->wacom_wac.input) |
1347 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1348 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1349 | wacom_destroy_leds(wacom); |
e7224094 | 1350 | usb_free_urb(wacom->irq); |
997ea58e | 1351 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1352 | wacom->wacom_wac.data, wacom->data_dma); |
1353 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1354 | kfree(wacom); |
1355 | } | |
1356 | ||
1357 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1358 | { | |
1359 | struct wacom *wacom = usb_get_intfdata(intf); | |
1360 | ||
1361 | mutex_lock(&wacom->lock); | |
1362 | usb_kill_urb(wacom->irq); | |
1363 | mutex_unlock(&wacom->lock); | |
1364 | ||
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | static int wacom_resume(struct usb_interface *intf) | |
1369 | { | |
1370 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1371 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1372 | int rv = 0; |
e7224094 ON |
1373 | |
1374 | mutex_lock(&wacom->lock); | |
38101475 PC |
1375 | |
1376 | /* switch to wacom mode first */ | |
1377 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1378 | wacom_led_control(wacom); |
38101475 | 1379 | |
d3825d51 CB |
1380 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
1381 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1382 | rv = -EIO; |
38101475 | 1383 | |
e7224094 ON |
1384 | mutex_unlock(&wacom->lock); |
1385 | ||
1386 | return rv; | |
1387 | } | |
1388 | ||
1389 | static int wacom_reset_resume(struct usb_interface *intf) | |
1390 | { | |
1391 | return wacom_resume(intf); | |
3bea733a PC |
1392 | } |
1393 | ||
1394 | static struct usb_driver wacom_driver = { | |
1395 | .name = "wacom", | |
b036f6fb | 1396 | .id_table = wacom_ids, |
3bea733a PC |
1397 | .probe = wacom_probe, |
1398 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1399 | .suspend = wacom_suspend, |
1400 | .resume = wacom_resume, | |
1401 | .reset_resume = wacom_reset_resume, | |
1402 | .supports_autosuspend = 1, | |
3bea733a PC |
1403 | }; |
1404 | ||
08642e7c | 1405 | module_usb_driver(wacom_driver); |