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 */ | |
c16d2409 | 342 | int result = 0, touch_max = 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; |
c16d2409 PC |
389 | /* touch device at least supports one touch point */ |
390 | touch_max = 1; | |
3699dd7e PC |
391 | switch (features->type) { |
392 | case TABLETPC2FG: | |
ec67bbed | 393 | features->pktlen = WACOM_PKGLEN_TPC2FG; |
3699dd7e | 394 | break; |
1963518b | 395 | |
3699dd7e PC |
396 | case MTSCREEN: |
397 | case WACOM_24HDT: | |
1963518b | 398 | features->pktlen = WACOM_PKGLEN_MTOUCH; |
3699dd7e | 399 | break; |
1963518b | 400 | |
6afdc289 PC |
401 | case MTTPC: |
402 | features->pktlen = WACOM_PKGLEN_MTTPC; | |
403 | break; | |
404 | ||
3699dd7e | 405 | case BAMBOO_PT: |
4a88081e | 406 | features->pktlen = WACOM_PKGLEN_BBTOUCH; |
3699dd7e PC |
407 | break; |
408 | ||
409 | default: | |
410 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
411 | break; | |
412 | } | |
413 | ||
414 | switch (features->type) { | |
415 | case BAMBOO_PT: | |
4a88081e PC |
416 | features->x_phy = |
417 | get_unaligned_le16(&report[i + 5]); | |
418 | features->x_max = | |
419 | get_unaligned_le16(&report[i + 8]); | |
420 | i += 15; | |
3699dd7e PC |
421 | break; |
422 | ||
423 | case WACOM_24HDT: | |
b1e4279e JG |
424 | features->x_max = |
425 | get_unaligned_le16(&report[i + 3]); | |
426 | features->x_phy = | |
427 | get_unaligned_le16(&report[i + 8]); | |
428 | features->unit = report[i - 1]; | |
429 | features->unitExpo = report[i - 3]; | |
430 | i += 12; | |
3699dd7e PC |
431 | break; |
432 | ||
433 | default: | |
4a88081e PC |
434 | features->x_max = |
435 | get_unaligned_le16(&report[i + 3]); | |
436 | features->x_phy = | |
437 | get_unaligned_le16(&report[i + 6]); | |
438 | features->unit = report[i + 9]; | |
439 | features->unitExpo = report[i + 11]; | |
440 | i += 12; | |
3699dd7e | 441 | break; |
4a88081e | 442 | } |
545f4e99 | 443 | } else if (pen) { |
ec67bbed | 444 | /* penabled only accepts exact bytes of data */ |
3699dd7e | 445 | if (features->type >= TABLETPC) |
57e413d9 | 446 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 447 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 448 | features->x_max = |
252f7769 | 449 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
450 | i += 4; |
451 | } | |
545f4e99 PC |
452 | } |
453 | break; | |
454 | ||
455 | case HID_USAGE_Y: | |
ec67bbed PC |
456 | if (usage == WCM_DESKTOP) { |
457 | if (finger) { | |
3699dd7e PC |
458 | switch (features->type) { |
459 | case TABLETPC2FG: | |
460 | case MTSCREEN: | |
6afdc289 | 461 | case MTTPC: |
ec67bbed | 462 | features->y_max = |
252f7769 | 463 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 464 | features->y_phy = |
252f7769 | 465 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 466 | i += 7; |
3699dd7e PC |
467 | break; |
468 | ||
469 | case WACOM_24HDT: | |
b1e4279e JG |
470 | features->y_max = |
471 | get_unaligned_le16(&report[i + 3]); | |
472 | features->y_phy = | |
473 | get_unaligned_le16(&report[i - 2]); | |
474 | i += 7; | |
3699dd7e PC |
475 | break; |
476 | ||
477 | case BAMBOO_PT: | |
4a88081e PC |
478 | features->y_phy = |
479 | get_unaligned_le16(&report[i + 3]); | |
480 | features->y_max = | |
481 | get_unaligned_le16(&report[i + 6]); | |
482 | i += 12; | |
3699dd7e PC |
483 | break; |
484 | ||
485 | default: | |
ec67bbed PC |
486 | features->y_max = |
487 | features->x_max; | |
488 | features->y_phy = | |
252f7769 | 489 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 490 | i += 4; |
3699dd7e | 491 | break; |
ec67bbed PC |
492 | } |
493 | } else if (pen) { | |
ec67bbed | 494 | features->y_max = |
252f7769 | 495 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
496 | i += 4; |
497 | } | |
498 | } | |
545f4e99 PC |
499 | break; |
500 | ||
501 | case HID_USAGE_FINGER: | |
502 | finger = 1; | |
503 | i++; | |
504 | break; | |
505 | ||
428f8588 CB |
506 | /* |
507 | * Requiring Stylus Usage will ignore boot mouse | |
508 | * X/Y values and some cases of invalid Digitizer X/Y | |
509 | * values commonly reported. | |
510 | */ | |
545f4e99 PC |
511 | case HID_USAGE_STYLUS: |
512 | pen = 1; | |
513 | i++; | |
514 | break; | |
f393ee2b PC |
515 | |
516 | case HID_USAGE_CONTACTMAX: | |
1cecc5cc PC |
517 | /* leave touch_max as is if predefined */ |
518 | if (!features->touch_max) | |
519 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
520 | i++; |
521 | break; | |
545f4e99 PC |
522 | } |
523 | break; | |
524 | ||
4134361a | 525 | case HID_COLLECTION_END: |
ec67bbed | 526 | /* reset UsagePage and Finger */ |
545f4e99 PC |
527 | finger = usage = 0; |
528 | break; | |
4134361a CB |
529 | |
530 | case HID_COLLECTION: | |
531 | i++; | |
532 | switch (report[i]) { | |
533 | case HID_COLLECTION_LOGICAL: | |
534 | i += wacom_parse_logical_collection(&report[i], | |
535 | features); | |
536 | break; | |
537 | } | |
538 | break; | |
545f4e99 PC |
539 | } |
540 | } | |
541 | ||
545f4e99 | 542 | out: |
c16d2409 PC |
543 | if (!features->touch_max && touch_max) |
544 | features->touch_max = touch_max; | |
384318ec | 545 | result = 0; |
545f4e99 PC |
546 | kfree(report); |
547 | return result; | |
548 | } | |
549 | ||
fe494bc2 | 550 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
551 | { |
552 | unsigned char *rep_data; | |
fe494bc2 | 553 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 554 | |
fe494bc2 | 555 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 556 | if (!rep_data) |
ec67bbed PC |
557 | return error; |
558 | ||
fe494bc2 | 559 | do { |
9937c026 CB |
560 | rep_data[0] = report_id; |
561 | rep_data[1] = mode; | |
562 | ||
fe494bc2 JG |
563 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
564 | report_id, rep_data, length, 1); | |
565 | if (error >= 0) | |
566 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
567 | report_id, rep_data, length, 1); | |
568 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); | |
569 | ||
570 | kfree(rep_data); | |
571 | ||
572 | return error < 0 ? error : 0; | |
573 | } | |
574 | ||
575 | /* | |
576 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
577 | * typically configured to power-up in a mode which sends mouse-like | |
578 | * reports to the OS. To get absolute position, pressure data, etc. | |
579 | * from the tablet, it is necessary to switch the tablet out of this | |
580 | * mode and into one which sends the full range of tablet data. | |
581 | */ | |
582 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
583 | { | |
1963518b | 584 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 585 | if (features->type > TABLETPC) { |
fe494bc2 JG |
586 | /* MT Tablet PC touch */ |
587 | return wacom_set_device_mode(intf, 3, 4, 4); | |
588 | } | |
b1e4279e JG |
589 | else if (features->type == WACOM_24HDT) { |
590 | return wacom_set_device_mode(intf, 18, 3, 2); | |
591 | } | |
fe494bc2 JG |
592 | } else if (features->device_type == BTN_TOOL_PEN) { |
593 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
594 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 595 | } |
ec67bbed | 596 | } |
3b7307c2 | 597 | |
fe494bc2 | 598 | return 0; |
3b7307c2 DT |
599 | } |
600 | ||
ec67bbed | 601 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 602 | struct wacom_features *features) |
ec67bbed PC |
603 | { |
604 | int error = 0; | |
605 | struct usb_host_interface *interface = intf->cur_altsetting; | |
606 | struct hid_descriptor *hid_desc; | |
607 | ||
fed87e65 | 608 | /* default features */ |
ec67bbed | 609 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
610 | features->x_fuzz = 4; |
611 | features->y_fuzz = 4; | |
612 | features->pressure_fuzz = 0; | |
613 | features->distance_fuzz = 0; | |
ec67bbed | 614 | |
d3825d51 CB |
615 | /* |
616 | * The wireless device HID is basic and layout conflicts with | |
617 | * other tablets (monitor and touch interface can look like pen). | |
618 | * Skip the query for this type and modify defaults based on | |
619 | * interface number. | |
620 | */ | |
621 | if (features->type == WIRELESS) { | |
622 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
623 | features->device_type = 0; | |
624 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 625 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
626 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
627 | } | |
628 | } | |
629 | ||
1963518b | 630 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 631 | if (features->type < BAMBOO_PT) { |
ec67bbed | 632 | goto out; |
1963518b | 633 | } |
ec67bbed | 634 | |
a882c932 DT |
635 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
636 | if (error) { | |
637 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
638 | HID_DEVICET_REPORT, &hid_desc); | |
639 | if (error) { | |
eb71d1bb DT |
640 | dev_err(&intf->dev, |
641 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
642 | goto out; |
643 | } | |
644 | } | |
645 | error = wacom_parse_hid(intf, hid_desc, features); | |
646 | if (error) | |
647 | goto out; | |
115d5e12 | 648 | wacom_fix_phy_from_hid(features); |
ec67bbed | 649 | |
ec67bbed PC |
650 | out: |
651 | return error; | |
652 | } | |
653 | ||
4492efff PC |
654 | struct wacom_usbdev_data { |
655 | struct list_head list; | |
656 | struct kref kref; | |
657 | struct usb_device *dev; | |
658 | struct wacom_shared shared; | |
659 | }; | |
660 | ||
661 | static LIST_HEAD(wacom_udev_list); | |
662 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
663 | ||
aea2bf6a JG |
664 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
665 | { | |
666 | int port1; | |
667 | struct usb_device *sibling; | |
668 | ||
669 | if (vendor == 0 && product == 0) | |
670 | return dev; | |
671 | ||
672 | if (dev->parent == NULL) | |
673 | return NULL; | |
674 | ||
675 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
676 | struct usb_device_descriptor *d; | |
677 | if (sibling == NULL) | |
678 | continue; | |
679 | ||
680 | d = &sibling->descriptor; | |
681 | if (d->idVendor == vendor && d->idProduct == product) | |
682 | return sibling; | |
683 | } | |
684 | ||
685 | return NULL; | |
686 | } | |
687 | ||
4492efff PC |
688 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
689 | { | |
690 | struct wacom_usbdev_data *data; | |
691 | ||
692 | list_for_each_entry(data, &wacom_udev_list, list) { | |
693 | if (data->dev == dev) { | |
694 | kref_get(&data->kref); | |
695 | return data; | |
696 | } | |
697 | } | |
698 | ||
699 | return NULL; | |
700 | } | |
701 | ||
702 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
703 | struct usb_device *dev) | |
704 | { | |
705 | struct wacom_usbdev_data *data; | |
706 | int retval = 0; | |
707 | ||
708 | mutex_lock(&wacom_udev_list_lock); | |
709 | ||
710 | data = wacom_get_usbdev_data(dev); | |
711 | if (!data) { | |
712 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
713 | if (!data) { | |
714 | retval = -ENOMEM; | |
715 | goto out; | |
716 | } | |
717 | ||
718 | kref_init(&data->kref); | |
719 | data->dev = dev; | |
720 | list_add_tail(&data->list, &wacom_udev_list); | |
721 | } | |
722 | ||
723 | wacom->shared = &data->shared; | |
724 | ||
725 | out: | |
726 | mutex_unlock(&wacom_udev_list_lock); | |
727 | return retval; | |
728 | } | |
729 | ||
730 | static void wacom_release_shared_data(struct kref *kref) | |
731 | { | |
732 | struct wacom_usbdev_data *data = | |
733 | container_of(kref, struct wacom_usbdev_data, kref); | |
734 | ||
735 | mutex_lock(&wacom_udev_list_lock); | |
736 | list_del(&data->list); | |
737 | mutex_unlock(&wacom_udev_list_lock); | |
738 | ||
739 | kfree(data); | |
740 | } | |
741 | ||
742 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
743 | { | |
744 | struct wacom_usbdev_data *data; | |
745 | ||
746 | if (wacom->shared) { | |
747 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
748 | kref_put(&data->kref, wacom_release_shared_data); | |
749 | wacom->shared = NULL; | |
750 | } | |
751 | } | |
752 | ||
5d7e7d47 EH |
753 | static int wacom_led_control(struct wacom *wacom) |
754 | { | |
755 | unsigned char *buf; | |
9b5b95dd | 756 | int retval; |
5d7e7d47 EH |
757 | |
758 | buf = kzalloc(9, GFP_KERNEL); | |
759 | if (!buf) | |
760 | return -ENOMEM; | |
761 | ||
9b5b95dd JG |
762 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
763 | wacom->wacom_wac.features.type <= INTUOS5L) { | |
764 | /* | |
765 | * Touch Ring and crop mark LED luminance may take on | |
766 | * one of four values: | |
767 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
768 | */ | |
769 | int ring_led = wacom->led.select[0] & 0x03; | |
770 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
771 | int crop_lum = 0; | |
772 | ||
773 | buf[0] = WAC_CMD_LED_CONTROL; | |
774 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
775 | } | |
776 | else { | |
777 | int led = wacom->led.select[0] | 0x4; | |
778 | ||
779 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
780 | wacom->wacom_wac.features.type == WACOM_24HD) | |
781 | led |= (wacom->led.select[1] << 4) | 0x40; | |
782 | ||
783 | buf[0] = WAC_CMD_LED_CONTROL; | |
784 | buf[1] = led; | |
785 | buf[2] = wacom->led.llv; | |
786 | buf[3] = wacom->led.hlv; | |
787 | buf[4] = wacom->led.img_lum; | |
788 | } | |
5d7e7d47 EH |
789 | |
790 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
791 | buf, 9, WAC_CMD_RETRIES); | |
792 | kfree(buf); | |
793 | ||
794 | return retval; | |
795 | } | |
796 | ||
797 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
798 | { | |
799 | unsigned char *buf; | |
800 | int i, retval; | |
801 | ||
802 | buf = kzalloc(259, GFP_KERNEL); | |
803 | if (!buf) | |
804 | return -ENOMEM; | |
805 | ||
806 | /* Send 'start' command */ | |
807 | buf[0] = WAC_CMD_ICON_START; | |
808 | buf[1] = 1; | |
809 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
810 | buf, 2, WAC_CMD_RETRIES); | |
811 | if (retval < 0) | |
812 | goto out; | |
813 | ||
814 | buf[0] = WAC_CMD_ICON_XFER; | |
815 | buf[1] = button_id & 0x07; | |
816 | for (i = 0; i < 4; i++) { | |
817 | buf[2] = i; | |
818 | memcpy(buf + 3, img + i * 256, 256); | |
819 | ||
820 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
821 | buf, 259, WAC_CMD_RETRIES); | |
822 | if (retval < 0) | |
823 | break; | |
824 | } | |
825 | ||
826 | /* Send 'stop' */ | |
827 | buf[0] = WAC_CMD_ICON_START; | |
828 | buf[1] = 0; | |
829 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
830 | buf, 2, WAC_CMD_RETRIES); | |
831 | ||
832 | out: | |
833 | kfree(buf); | |
834 | return retval; | |
835 | } | |
836 | ||
09e7d941 | 837 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
838 | const char *buf, size_t count) |
839 | { | |
840 | struct wacom *wacom = dev_get_drvdata(dev); | |
841 | unsigned int id; | |
842 | int err; | |
843 | ||
844 | err = kstrtouint(buf, 10, &id); | |
845 | if (err) | |
846 | return err; | |
847 | ||
848 | mutex_lock(&wacom->lock); | |
849 | ||
09e7d941 | 850 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
851 | err = wacom_led_control(wacom); |
852 | ||
853 | mutex_unlock(&wacom->lock); | |
854 | ||
855 | return err < 0 ? err : count; | |
856 | } | |
857 | ||
09e7d941 PC |
858 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
859 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
860 | struct device_attribute *attr, const char *buf, size_t count) \ | |
861 | { \ | |
862 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
863 | } \ | |
04c59abd PC |
864 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
865 | struct device_attribute *attr, char *buf) \ | |
866 | { \ | |
867 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
868 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
869 | } \ | |
870 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
871 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
872 | wacom_led##SET_ID##_select_store) |
873 | ||
874 | DEVICE_LED_SELECT_ATTR(0); | |
875 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
876 | |
877 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
878 | const char *buf, size_t count) | |
879 | { | |
880 | unsigned int value; | |
881 | int err; | |
882 | ||
883 | err = kstrtouint(buf, 10, &value); | |
884 | if (err) | |
885 | return err; | |
886 | ||
887 | mutex_lock(&wacom->lock); | |
888 | ||
889 | *dest = value & 0x7f; | |
890 | err = wacom_led_control(wacom); | |
891 | ||
892 | mutex_unlock(&wacom->lock); | |
893 | ||
894 | return err < 0 ? err : count; | |
895 | } | |
896 | ||
897 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
898 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
899 | struct device_attribute *attr, const char *buf, size_t count) \ | |
900 | { \ | |
901 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
902 | \ | |
903 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
904 | buf, count); \ | |
905 | } \ | |
906 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
907 | NULL, wacom_##name##_luminance_store) | |
908 | ||
909 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
910 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
911 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
912 | ||
913 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
914 | const char *buf, size_t count) | |
915 | { | |
916 | struct wacom *wacom = dev_get_drvdata(dev); | |
917 | int err; | |
918 | ||
919 | if (count != 1024) | |
920 | return -EINVAL; | |
921 | ||
922 | mutex_lock(&wacom->lock); | |
923 | ||
924 | err = wacom_led_putimage(wacom, button_id, buf); | |
925 | ||
926 | mutex_unlock(&wacom->lock); | |
927 | ||
928 | return err < 0 ? err : count; | |
929 | } | |
930 | ||
931 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
932 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
933 | struct device_attribute *attr, const char *buf, size_t count) \ | |
934 | { \ | |
935 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
936 | } \ | |
937 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
938 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
939 | ||
940 | DEVICE_BTNIMG_ATTR(0); | |
941 | DEVICE_BTNIMG_ATTR(1); | |
942 | DEVICE_BTNIMG_ATTR(2); | |
943 | DEVICE_BTNIMG_ATTR(3); | |
944 | DEVICE_BTNIMG_ATTR(4); | |
945 | DEVICE_BTNIMG_ATTR(5); | |
946 | DEVICE_BTNIMG_ATTR(6); | |
947 | DEVICE_BTNIMG_ATTR(7); | |
948 | ||
09e7d941 PC |
949 | static struct attribute *cintiq_led_attrs[] = { |
950 | &dev_attr_status_led0_select.attr, | |
951 | &dev_attr_status_led1_select.attr, | |
952 | NULL | |
953 | }; | |
954 | ||
955 | static struct attribute_group cintiq_led_attr_group = { | |
956 | .name = "wacom_led", | |
957 | .attrs = cintiq_led_attrs, | |
958 | }; | |
959 | ||
960 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
961 | &dev_attr_status0_luminance.attr, |
962 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 963 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
964 | &dev_attr_buttons_luminance.attr, |
965 | &dev_attr_button0_rawimg.attr, | |
966 | &dev_attr_button1_rawimg.attr, | |
967 | &dev_attr_button2_rawimg.attr, | |
968 | &dev_attr_button3_rawimg.attr, | |
969 | &dev_attr_button4_rawimg.attr, | |
970 | &dev_attr_button5_rawimg.attr, | |
971 | &dev_attr_button6_rawimg.attr, | |
972 | &dev_attr_button7_rawimg.attr, | |
973 | NULL | |
974 | }; | |
975 | ||
09e7d941 | 976 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 977 | .name = "wacom_led", |
09e7d941 | 978 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
979 | }; |
980 | ||
9b5b95dd JG |
981 | static struct attribute *intuos5_led_attrs[] = { |
982 | &dev_attr_status0_luminance.attr, | |
983 | &dev_attr_status_led0_select.attr, | |
984 | NULL | |
985 | }; | |
986 | ||
987 | static struct attribute_group intuos5_led_attr_group = { | |
988 | .name = "wacom_led", | |
989 | .attrs = intuos5_led_attrs, | |
990 | }; | |
991 | ||
5d7e7d47 EH |
992 | static int wacom_initialize_leds(struct wacom *wacom) |
993 | { | |
994 | int error; | |
995 | ||
09e7d941 PC |
996 | /* Initialize default values */ |
997 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 998 | case INTUOS4S: |
09e7d941 PC |
999 | case INTUOS4: |
1000 | case INTUOS4L: | |
1001 | wacom->led.select[0] = 0; | |
1002 | wacom->led.select[1] = 0; | |
f4fa9a6d | 1003 | wacom->led.llv = 10; |
5d7e7d47 EH |
1004 | wacom->led.hlv = 20; |
1005 | wacom->led.img_lum = 10; | |
09e7d941 PC |
1006 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
1007 | &intuos4_led_attr_group); | |
1008 | break; | |
1009 | ||
246835fc | 1010 | case WACOM_24HD: |
09e7d941 PC |
1011 | case WACOM_21UX2: |
1012 | wacom->led.select[0] = 0; | |
1013 | wacom->led.select[1] = 0; | |
1014 | wacom->led.llv = 0; | |
1015 | wacom->led.hlv = 0; | |
1016 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
1017 | |
1018 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
1019 | &cintiq_led_attr_group); |
1020 | break; | |
1021 | ||
9b5b95dd JG |
1022 | case INTUOS5S: |
1023 | case INTUOS5: | |
1024 | case INTUOS5L: | |
1025 | wacom->led.select[0] = 0; | |
1026 | wacom->led.select[1] = 0; | |
1027 | wacom->led.llv = 32; | |
1028 | wacom->led.hlv = 0; | |
1029 | wacom->led.img_lum = 0; | |
1030 | ||
1031 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
1032 | &intuos5_led_attr_group); | |
1033 | break; | |
1034 | ||
09e7d941 PC |
1035 | default: |
1036 | return 0; | |
5d7e7d47 EH |
1037 | } |
1038 | ||
09e7d941 PC |
1039 | if (error) { |
1040 | dev_err(&wacom->intf->dev, | |
1041 | "cannot create sysfs group err: %d\n", error); | |
1042 | return error; | |
1043 | } | |
1044 | wacom_led_control(wacom); | |
1045 | ||
5d7e7d47 EH |
1046 | return 0; |
1047 | } | |
1048 | ||
1049 | static void wacom_destroy_leds(struct wacom *wacom) | |
1050 | { | |
09e7d941 | 1051 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 1052 | case INTUOS4S: |
09e7d941 PC |
1053 | case INTUOS4: |
1054 | case INTUOS4L: | |
5d7e7d47 | 1055 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
1056 | &intuos4_led_attr_group); |
1057 | break; | |
1058 | ||
246835fc | 1059 | case WACOM_24HD: |
09e7d941 PC |
1060 | case WACOM_21UX2: |
1061 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1062 | &cintiq_led_attr_group); | |
1063 | break; | |
9b5b95dd JG |
1064 | |
1065 | case INTUOS5S: | |
1066 | case INTUOS5: | |
1067 | case INTUOS5L: | |
1068 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1069 | &intuos5_led_attr_group); | |
1070 | break; | |
5d7e7d47 EH |
1071 | } |
1072 | } | |
1073 | ||
a1d552cc CB |
1074 | static enum power_supply_property wacom_battery_props[] = { |
1075 | POWER_SUPPLY_PROP_CAPACITY | |
1076 | }; | |
1077 | ||
1078 | static int wacom_battery_get_property(struct power_supply *psy, | |
1079 | enum power_supply_property psp, | |
1080 | union power_supply_propval *val) | |
1081 | { | |
1082 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1083 | int ret = 0; | |
1084 | ||
1085 | switch (psp) { | |
1086 | case POWER_SUPPLY_PROP_CAPACITY: | |
1087 | val->intval = | |
1088 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1089 | break; | |
1090 | default: | |
1091 | ret = -EINVAL; | |
1092 | break; | |
1093 | } | |
1094 | ||
1095 | return ret; | |
1096 | } | |
1097 | ||
1098 | static int wacom_initialize_battery(struct wacom *wacom) | |
1099 | { | |
1100 | int error = 0; | |
1101 | ||
1102 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1103 | wacom->battery.properties = wacom_battery_props; | |
1104 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1105 | wacom->battery.get_property = wacom_battery_get_property; | |
1106 | wacom->battery.name = "wacom_battery"; | |
1107 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1108 | wacom->battery.use_for_apm = 0; | |
1109 | ||
1110 | error = power_supply_register(&wacom->usbdev->dev, | |
1111 | &wacom->battery); | |
b7af2bb8 CB |
1112 | |
1113 | if (!error) | |
1114 | power_supply_powers(&wacom->battery, | |
1115 | &wacom->usbdev->dev); | |
a1d552cc CB |
1116 | } |
1117 | ||
1118 | return error; | |
1119 | } | |
1120 | ||
1121 | static void wacom_destroy_battery(struct wacom *wacom) | |
1122 | { | |
b7af2bb8 CB |
1123 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1124 | wacom->battery.dev) { | |
a1d552cc | 1125 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1126 | wacom->battery.dev = NULL; |
1127 | } | |
a1d552cc CB |
1128 | } |
1129 | ||
3aac0ef1 CB |
1130 | static int wacom_register_input(struct wacom *wacom) |
1131 | { | |
1132 | struct input_dev *input_dev; | |
1133 | struct usb_interface *intf = wacom->intf; | |
1134 | struct usb_device *dev = interface_to_usbdev(intf); | |
1135 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1136 | int error; | |
1137 | ||
1138 | input_dev = input_allocate_device(); | |
1963518b PC |
1139 | if (!input_dev) { |
1140 | error = -ENOMEM; | |
1141 | goto fail1; | |
1142 | } | |
3aac0ef1 CB |
1143 | |
1144 | input_dev->name = wacom_wac->name; | |
1145 | input_dev->dev.parent = &intf->dev; | |
1146 | input_dev->open = wacom_open; | |
1147 | input_dev->close = wacom_close; | |
1148 | usb_to_input_id(dev, &input_dev->id); | |
1149 | input_set_drvdata(input_dev, wacom); | |
1150 | ||
1151 | wacom_wac->input = input_dev; | |
1963518b PC |
1152 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1153 | if (error) | |
1154 | goto fail1; | |
3aac0ef1 CB |
1155 | |
1156 | error = input_register_device(input_dev); | |
1963518b PC |
1157 | if (error) |
1158 | goto fail2; | |
1159 | ||
1160 | return 0; | |
3aac0ef1 | 1161 | |
1963518b PC |
1162 | fail2: |
1163 | input_free_device(input_dev); | |
1164 | wacom_wac->input = NULL; | |
1165 | fail1: | |
3aac0ef1 CB |
1166 | return error; |
1167 | } | |
1168 | ||
16bf288c CB |
1169 | static void wacom_wireless_work(struct work_struct *work) |
1170 | { | |
1171 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1172 | struct usb_device *usbdev = wacom->usbdev; | |
1173 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
b7af2bb8 CB |
1174 | struct wacom *wacom1, *wacom2; |
1175 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1176 | int error; | |
16bf288c CB |
1177 | |
1178 | /* | |
1179 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1180 | * remove any existing input and battery devices. |
16bf288c CB |
1181 | */ |
1182 | ||
b7af2bb8 CB |
1183 | wacom_destroy_battery(wacom); |
1184 | ||
16bf288c | 1185 | /* Stylus interface */ |
b7af2bb8 CB |
1186 | wacom1 = usb_get_intfdata(usbdev->config->interface[1]); |
1187 | wacom_wac1 = &(wacom1->wacom_wac); | |
1188 | if (wacom_wac1->input) | |
1189 | input_unregister_device(wacom_wac1->input); | |
1190 | wacom_wac1->input = NULL; | |
16bf288c CB |
1191 | |
1192 | /* Touch interface */ | |
b7af2bb8 CB |
1193 | wacom2 = usb_get_intfdata(usbdev->config->interface[2]); |
1194 | wacom_wac2 = &(wacom2->wacom_wac); | |
1195 | if (wacom_wac2->input) | |
1196 | input_unregister_device(wacom_wac2->input); | |
1197 | wacom_wac2->input = NULL; | |
16bf288c CB |
1198 | |
1199 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1200 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c CB |
1201 | } else { |
1202 | const struct usb_device_id *id = wacom_ids; | |
1203 | ||
eb71d1bb DT |
1204 | dev_info(&wacom->intf->dev, |
1205 | "wireless tablet connected with PID %x\n", | |
1206 | wacom_wac->pid); | |
16bf288c CB |
1207 | |
1208 | while (id->match_flags) { | |
1209 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1210 | id->idProduct == wacom_wac->pid) | |
1211 | break; | |
1212 | id++; | |
1213 | } | |
1214 | ||
1215 | if (!id->match_flags) { | |
eb71d1bb DT |
1216 | dev_info(&wacom->intf->dev, |
1217 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1218 | return; |
1219 | } | |
1220 | ||
1221 | /* Stylus interface */ | |
b7af2bb8 | 1222 | wacom_wac1->features = |
16bf288c | 1223 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1224 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
1225 | error = wacom_register_input(wacom1); | |
1226 | if (error) | |
1227 | goto fail1; | |
16bf288c CB |
1228 | |
1229 | /* Touch interface */ | |
b7af2bb8 | 1230 | wacom_wac2->features = |
16bf288c | 1231 | *((struct wacom_features *)id->driver_info); |
b7af2bb8 CB |
1232 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1233 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1234 | wacom_set_phy_from_res(&wacom_wac2->features); | |
1235 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1236 | error = wacom_register_input(wacom2); | |
1237 | if (error) | |
1238 | goto fail2; | |
1239 | ||
1240 | error = wacom_initialize_battery(wacom); | |
1241 | if (error) | |
1242 | goto fail3; | |
16bf288c | 1243 | } |
b7af2bb8 CB |
1244 | |
1245 | return; | |
1246 | ||
1247 | fail3: | |
1248 | input_unregister_device(wacom_wac2->input); | |
1249 | wacom_wac2->input = NULL; | |
1250 | fail2: | |
1251 | input_unregister_device(wacom_wac1->input); | |
1252 | wacom_wac1->input = NULL; | |
1253 | fail1: | |
1254 | return; | |
16bf288c CB |
1255 | } |
1256 | ||
3bea733a PC |
1257 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1258 | { | |
1259 | struct usb_device *dev = interface_to_usbdev(intf); | |
1260 | struct usb_endpoint_descriptor *endpoint; | |
1261 | struct wacom *wacom; | |
1262 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1263 | struct wacom_features *features; |
e33da8a5 | 1264 | int error; |
3bea733a | 1265 | |
e33da8a5 | 1266 | if (!id->driver_info) |
b036f6fb BB |
1267 | return -EINVAL; |
1268 | ||
3bea733a | 1269 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1270 | if (!wacom) |
1271 | return -ENOMEM; | |
e33da8a5 | 1272 | |
51269fe8 | 1273 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1274 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1275 | features = &wacom_wac->features; | |
1276 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1277 | error = -EINVAL; | |
3bea733a | 1278 | goto fail1; |
e33da8a5 | 1279 | } |
3bea733a | 1280 | |
997ea58e DM |
1281 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1282 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1283 | if (!wacom_wac->data) { |
1284 | error = -ENOMEM; | |
3bea733a | 1285 | goto fail1; |
e33da8a5 | 1286 | } |
3bea733a PC |
1287 | |
1288 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1289 | if (!wacom->irq) { |
1290 | error = -ENOMEM; | |
3bea733a | 1291 | goto fail2; |
e33da8a5 | 1292 | } |
3bea733a PC |
1293 | |
1294 | wacom->usbdev = dev; | |
e7224094 ON |
1295 | wacom->intf = intf; |
1296 | mutex_init(&wacom->lock); | |
16bf288c | 1297 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1298 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1299 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1300 | ||
545f4e99 PC |
1301 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1302 | ||
f393ee2b | 1303 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1304 | error = wacom_retrieve_hid_descriptor(intf, features); |
1305 | if (error) | |
4b6d4434 | 1306 | goto fail3; |
545f4e99 | 1307 | |
ae584ca4 JG |
1308 | /* |
1309 | * Intuos5 has no useful data about its touch interface in its | |
1310 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1311 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1312 | */ | |
1313 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { | |
1314 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { | |
1315 | features->device_type = BTN_TOOL_FINGER; | |
1316 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1317 | ||
32edbf56 | 1318 | wacom_set_phy_from_res(features); |
ae584ca4 JG |
1319 | |
1320 | features->x_max = 4096; | |
1321 | features->y_max = 4096; | |
1322 | } else { | |
1323 | features->device_type = BTN_TOOL_PEN; | |
1324 | } | |
1325 | } | |
1326 | ||
bc73dd39 HR |
1327 | wacom_setup_device_quirks(features); |
1328 | ||
49b764ae PC |
1329 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1330 | ||
bc73dd39 | 1331 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1332 | struct usb_device *other_dev; |
1333 | ||
49b764ae PC |
1334 | /* Append the device type to the name */ |
1335 | strlcat(wacom_wac->name, | |
1336 | features->device_type == BTN_TOOL_PEN ? | |
1337 | " Pen" : " Finger", | |
1338 | sizeof(wacom_wac->name)); | |
4492efff | 1339 | |
aea2bf6a JG |
1340 | |
1341 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); | |
1342 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1343 | other_dev = dev; | |
1344 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff PC |
1345 | if (error) |
1346 | goto fail3; | |
49b764ae PC |
1347 | } |
1348 | ||
3bea733a PC |
1349 | usb_fill_int_urb(wacom->irq, dev, |
1350 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1351 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1352 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1353 | wacom->irq->transfer_dma = wacom->data_dma; |
1354 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1355 | ||
5d7e7d47 | 1356 | error = wacom_initialize_leds(wacom); |
5014186d | 1357 | if (error) |
4492efff | 1358 | goto fail4; |
3bea733a | 1359 | |
d3825d51 CB |
1360 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1361 | error = wacom_register_input(wacom); | |
1362 | if (error) | |
b7af2bb8 | 1363 | goto fail5; |
d3825d51 | 1364 | } |
5d7e7d47 | 1365 | |
ec67bbed PC |
1366 | /* Note that if query fails it is not a hard failure */ |
1367 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1368 | |
1369 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1370 | |
1371 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
1372 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) | |
1373 | goto fail5; | |
1374 | } | |
1375 | ||
3bea733a PC |
1376 | return 0; |
1377 | ||
5d7e7d47 | 1378 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1379 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1380 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1381 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1382 | fail1: kfree(wacom); |
5014186d | 1383 | return error; |
3bea733a PC |
1384 | } |
1385 | ||
1386 | static void wacom_disconnect(struct usb_interface *intf) | |
1387 | { | |
e7224094 | 1388 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1389 | |
1390 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1391 | |
1392 | usb_kill_urb(wacom->irq); | |
16bf288c | 1393 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1394 | if (wacom->wacom_wac.input) |
1395 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1396 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1397 | wacom_destroy_leds(wacom); |
e7224094 | 1398 | usb_free_urb(wacom->irq); |
997ea58e | 1399 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1400 | wacom->wacom_wac.data, wacom->data_dma); |
1401 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1402 | kfree(wacom); |
1403 | } | |
1404 | ||
1405 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1406 | { | |
1407 | struct wacom *wacom = usb_get_intfdata(intf); | |
1408 | ||
1409 | mutex_lock(&wacom->lock); | |
1410 | usb_kill_urb(wacom->irq); | |
1411 | mutex_unlock(&wacom->lock); | |
1412 | ||
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | static int wacom_resume(struct usb_interface *intf) | |
1417 | { | |
1418 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1419 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1420 | int rv = 0; |
e7224094 ON |
1421 | |
1422 | mutex_lock(&wacom->lock); | |
38101475 PC |
1423 | |
1424 | /* switch to wacom mode first */ | |
1425 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1426 | wacom_led_control(wacom); |
38101475 | 1427 | |
d3825d51 CB |
1428 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
1429 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1430 | rv = -EIO; |
38101475 | 1431 | |
e7224094 ON |
1432 | mutex_unlock(&wacom->lock); |
1433 | ||
1434 | return rv; | |
1435 | } | |
1436 | ||
1437 | static int wacom_reset_resume(struct usb_interface *intf) | |
1438 | { | |
1439 | return wacom_resume(intf); | |
3bea733a PC |
1440 | } |
1441 | ||
1442 | static struct usb_driver wacom_driver = { | |
1443 | .name = "wacom", | |
b036f6fb | 1444 | .id_table = wacom_ids, |
3bea733a PC |
1445 | .probe = wacom_probe, |
1446 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1447 | .suspend = wacom_suspend, |
1448 | .resume = wacom_resume, | |
1449 | .reset_resume = wacom_reset_resume, | |
1450 | .supports_autosuspend = 1, | |
3bea733a PC |
1451 | }; |
1452 | ||
08642e7c | 1453 | module_usb_driver(wacom_driver); |