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 | |
4134361a CB |
31 | #define HID_COLLECTION 0xa1 |
32 | #define HID_COLLECTION_LOGICAL 0x02 | |
33 | #define HID_COLLECTION_END 0xc0 | |
545f4e99 PC |
34 | |
35 | enum { | |
36 | WCM_UNDEFINED = 0, | |
37 | WCM_DESKTOP, | |
38 | WCM_DIGITIZER, | |
39 | }; | |
40 | ||
41 | struct hid_descriptor { | |
42 | struct usb_descriptor_header header; | |
43 | __le16 bcdHID; | |
44 | u8 bCountryCode; | |
45 | u8 bNumDescriptors; | |
46 | u8 bDescriptorType; | |
47 | __le16 wDescriptorLength; | |
48 | } __attribute__ ((packed)); | |
49 | ||
50 | /* defines to get/set USB message */ | |
3bea733a PC |
51 | #define USB_REQ_GET_REPORT 0x01 |
52 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 53 | |
545f4e99 | 54 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 55 | #define WAC_MSG_RETRIES 5 |
3bea733a | 56 | |
5d7e7d47 EH |
57 | #define WAC_CMD_LED_CONTROL 0x20 |
58 | #define WAC_CMD_ICON_START 0x21 | |
59 | #define WAC_CMD_ICON_XFER 0x23 | |
60 | #define WAC_CMD_RETRIES 10 | |
61 | ||
62 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
63 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 64 | { |
5d7e7d47 EH |
65 | struct usb_device *dev = interface_to_usbdev(intf); |
66 | int retval; | |
67 | ||
68 | do { | |
69 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
70 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
71 | USB_DIR_IN | USB_TYPE_CLASS | |
72 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
73 | (type << 8) + id, |
74 | intf->altsetting[0].desc.bInterfaceNumber, | |
75 | buf, size, 100); | |
76 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
77 | ||
78 | return retval; | |
3bea733a PC |
79 | } |
80 | ||
5d7e7d47 EH |
81 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
82 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 83 | { |
5d7e7d47 EH |
84 | struct usb_device *dev = interface_to_usbdev(intf); |
85 | int retval; | |
86 | ||
87 | do { | |
88 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
89 | USB_REQ_SET_REPORT, | |
90 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
91 | (type << 8) + id, | |
92 | intf->altsetting[0].desc.bInterfaceNumber, | |
93 | buf, size, 1000); | |
94 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
95 | ||
96 | return retval; | |
3bea733a PC |
97 | } |
98 | ||
54c9b226 | 99 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
100 | { |
101 | struct wacom *wacom = urb->context; | |
3bea733a PC |
102 | int retval; |
103 | ||
104 | switch (urb->status) { | |
105 | case 0: | |
106 | /* success */ | |
107 | break; | |
108 | case -ECONNRESET: | |
109 | case -ENOENT: | |
110 | case -ESHUTDOWN: | |
111 | /* this urb is terminated, clean up */ | |
ea3e6c59 | 112 | dbg("%s - urb shutting down with status: %d", __func__, urb->status); |
3bea733a PC |
113 | return; |
114 | default: | |
ea3e6c59 | 115 | dbg("%s - nonzero urb status received: %d", __func__, urb->status); |
3bea733a PC |
116 | goto exit; |
117 | } | |
118 | ||
95dd3b30 | 119 | wacom_wac_irq(&wacom->wacom_wac, urb->actual_length); |
3bea733a PC |
120 | |
121 | exit: | |
e7224094 | 122 | usb_mark_last_busy(wacom->usbdev); |
73a97f4f | 123 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
3bea733a PC |
124 | if (retval) |
125 | err ("%s - usb_submit_urb failed with result %d", | |
ea3e6c59 | 126 | __func__, retval); |
3bea733a PC |
127 | } |
128 | ||
3bea733a PC |
129 | static int wacom_open(struct input_dev *dev) |
130 | { | |
7791bdae | 131 | struct wacom *wacom = input_get_drvdata(dev); |
f6cd3783 | 132 | int retval = 0; |
3bea733a | 133 | |
f6cd3783 | 134 | if (usb_autopm_get_interface(wacom->intf) < 0) |
3bea733a | 135 | return -EIO; |
f6cd3783 DT |
136 | |
137 | mutex_lock(&wacom->lock); | |
e7224094 ON |
138 | |
139 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
f6cd3783 DT |
140 | retval = -EIO; |
141 | goto out; | |
e7224094 ON |
142 | } |
143 | ||
51269fe8 | 144 | wacom->open = true; |
e7224094 | 145 | wacom->intf->needs_remote_wakeup = 1; |
3bea733a | 146 | |
f6cd3783 | 147 | out: |
e7224094 | 148 | mutex_unlock(&wacom->lock); |
62ecae09 | 149 | usb_autopm_put_interface(wacom->intf); |
f6cd3783 | 150 | return retval; |
3bea733a PC |
151 | } |
152 | ||
153 | static void wacom_close(struct input_dev *dev) | |
154 | { | |
7791bdae | 155 | struct wacom *wacom = input_get_drvdata(dev); |
62ecae09 DT |
156 | int autopm_error; |
157 | ||
158 | autopm_error = usb_autopm_get_interface(wacom->intf); | |
3bea733a | 159 | |
e7224094 | 160 | mutex_lock(&wacom->lock); |
3bea733a | 161 | usb_kill_urb(wacom->irq); |
51269fe8 | 162 | wacom->open = false; |
e7224094 ON |
163 | wacom->intf->needs_remote_wakeup = 0; |
164 | mutex_unlock(&wacom->lock); | |
f6cd3783 | 165 | |
62ecae09 DT |
166 | if (!autopm_error) |
167 | usb_autopm_put_interface(wacom->intf); | |
3bea733a PC |
168 | } |
169 | ||
16bf288c CB |
170 | /* |
171 | * Static values for max X/Y and resolution of Pen interface is stored in | |
172 | * features. This mean physical size of active area can be computed. | |
173 | * This is useful to do when Pen and Touch have same active area of tablet. | |
174 | * This means for Touch device, we only need to find max X/Y value and we | |
175 | * have enough information to compute resolution of touch. | |
176 | */ | |
177 | static void wacom_set_phy_from_res(struct wacom_features *features) | |
178 | { | |
179 | features->x_phy = (features->x_max * 100) / features->x_resolution; | |
180 | features->y_phy = (features->y_max * 100) / features->y_resolution; | |
181 | } | |
182 | ||
4134361a CB |
183 | static int wacom_parse_logical_collection(unsigned char *report, |
184 | struct wacom_features *features) | |
185 | { | |
186 | int length = 0; | |
187 | ||
188 | if (features->type == BAMBOO_PT) { | |
189 | ||
190 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
191 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 192 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 193 | |
16bf288c | 194 | wacom_set_phy_from_res(features); |
4134361a CB |
195 | |
196 | features->x_max = features->y_max = | |
197 | get_unaligned_le16(&report[10]); | |
198 | ||
199 | length = 11; | |
200 | } | |
201 | return length; | |
202 | } | |
203 | ||
428f8588 CB |
204 | /* |
205 | * Interface Descriptor of wacom devices can be incomplete and | |
206 | * inconsistent so wacom_features table is used to store stylus | |
207 | * device's packet lengths, various maximum values, and tablet | |
208 | * resolution based on product ID's. | |
209 | * | |
210 | * For devices that contain 2 interfaces, wacom_features table is | |
211 | * inaccurate for the touch interface. Since the Interface Descriptor | |
212 | * for touch interfaces has pretty complete data, this function exists | |
213 | * to query tablet for this missing information instead of hard coding in | |
214 | * an additional table. | |
215 | * | |
216 | * A typical Interface Descriptor for a stylus will contain a | |
217 | * boot mouse application collection that is not of interest and this | |
218 | * function will ignore it. | |
219 | * | |
220 | * It also contains a digitizer application collection that also is not | |
221 | * of interest since any information it contains would be duplicate | |
222 | * of what is in wacom_features. Usually it defines a report of an array | |
223 | * of bytes that could be used as max length of the stylus packet returned. | |
224 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
225 | * the X and Y logical values contain valid data but it is ignored. | |
226 | * | |
227 | * A typical Interface Descriptor for a touch interface will contain a | |
228 | * Digitizer-Finger Physical Collection which will define both logical | |
229 | * X/Y maximum as well as the physical size of tablet. Since touch | |
230 | * interfaces haven't supported pressure or distance, this is enough | |
231 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
232 | * |
233 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
234 | * Collection. Instead they define a Logical Collection with a single | |
235 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
236 | * |
237 | * Intuos5 touch interface does not contain useful data. We deal with | |
238 | * this after returning from this function. | |
428f8588 CB |
239 | */ |
240 | static int wacom_parse_hid(struct usb_interface *intf, | |
241 | struct hid_descriptor *hid_desc, | |
ec67bbed | 242 | struct wacom_features *features) |
545f4e99 PC |
243 | { |
244 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
245 | char limit = 0; |
246 | /* result has to be defined as int for some devices */ | |
247 | int result = 0; | |
545f4e99 PC |
248 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
249 | unsigned char *report; | |
250 | ||
251 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
252 | if (!report) | |
253 | return -ENOMEM; | |
254 | ||
255 | /* retrive report descriptors */ | |
256 | do { | |
257 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
258 | USB_REQ_GET_DESCRIPTOR, | |
259 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
260 | HID_DEVICET_REPORT << 8, | |
261 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
262 | report, | |
263 | hid_desc->wDescriptorLength, | |
264 | 5000); /* 5 secs */ | |
a417ea44 | 265 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 266 | |
384318ec | 267 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
268 | if (result < 0) |
269 | goto out; | |
270 | ||
271 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
272 | ||
273 | switch (report[i]) { | |
274 | case HID_USAGE_PAGE: | |
275 | switch (report[i + 1]) { | |
276 | case HID_USAGE_PAGE_DIGITIZER: | |
277 | usage = WCM_DIGITIZER; | |
278 | i++; | |
279 | break; | |
280 | ||
281 | case HID_USAGE_PAGE_DESKTOP: | |
282 | usage = WCM_DESKTOP; | |
283 | i++; | |
284 | break; | |
285 | } | |
286 | break; | |
287 | ||
288 | case HID_USAGE: | |
289 | switch (report[i + 1]) { | |
290 | case HID_USAGE_X: | |
291 | if (usage == WCM_DESKTOP) { | |
292 | if (finger) { | |
84eb5aa6 | 293 | features->device_type = BTN_TOOL_FINGER; |
ec67bbed PC |
294 | if (features->type == TABLETPC2FG) { |
295 | /* need to reset back */ | |
296 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
ec67bbed | 297 | } |
4a88081e PC |
298 | if (features->type == BAMBOO_PT) { |
299 | /* need to reset back */ | |
300 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
4a88081e PC |
301 | features->x_phy = |
302 | get_unaligned_le16(&report[i + 5]); | |
303 | features->x_max = | |
304 | get_unaligned_le16(&report[i + 8]); | |
305 | i += 15; | |
306 | } else { | |
307 | features->x_max = | |
308 | get_unaligned_le16(&report[i + 3]); | |
309 | features->x_phy = | |
310 | get_unaligned_le16(&report[i + 6]); | |
311 | features->unit = report[i + 9]; | |
312 | features->unitExpo = report[i + 11]; | |
313 | i += 12; | |
314 | } | |
545f4e99 | 315 | } else if (pen) { |
ec67bbed PC |
316 | /* penabled only accepts exact bytes of data */ |
317 | if (features->type == TABLETPC2FG) | |
57e413d9 | 318 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 319 | features->device_type = BTN_TOOL_PEN; |
545f4e99 | 320 | features->x_max = |
252f7769 | 321 | get_unaligned_le16(&report[i + 3]); |
545f4e99 PC |
322 | i += 4; |
323 | } | |
545f4e99 PC |
324 | } |
325 | break; | |
326 | ||
327 | case HID_USAGE_Y: | |
ec67bbed PC |
328 | if (usage == WCM_DESKTOP) { |
329 | if (finger) { | |
84eb5aa6 | 330 | features->device_type = BTN_TOOL_FINGER; |
ec67bbed PC |
331 | if (features->type == TABLETPC2FG) { |
332 | /* need to reset back */ | |
333 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
ec67bbed | 334 | features->y_max = |
252f7769 | 335 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 336 | features->y_phy = |
252f7769 | 337 | get_unaligned_le16(&report[i + 6]); |
ec67bbed | 338 | i += 7; |
4a88081e PC |
339 | } else if (features->type == BAMBOO_PT) { |
340 | /* need to reset back */ | |
341 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
4a88081e PC |
342 | features->y_phy = |
343 | get_unaligned_le16(&report[i + 3]); | |
344 | features->y_max = | |
345 | get_unaligned_le16(&report[i + 6]); | |
346 | i += 12; | |
ec67bbed PC |
347 | } else { |
348 | features->y_max = | |
349 | features->x_max; | |
350 | features->y_phy = | |
252f7769 | 351 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
352 | i += 4; |
353 | } | |
354 | } else if (pen) { | |
355 | /* penabled only accepts exact bytes of data */ | |
356 | if (features->type == TABLETPC2FG) | |
57e413d9 | 357 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed PC |
358 | features->device_type = BTN_TOOL_PEN; |
359 | features->y_max = | |
252f7769 | 360 | get_unaligned_le16(&report[i + 3]); |
ec67bbed PC |
361 | i += 4; |
362 | } | |
363 | } | |
545f4e99 PC |
364 | break; |
365 | ||
366 | case HID_USAGE_FINGER: | |
367 | finger = 1; | |
368 | i++; | |
369 | break; | |
370 | ||
428f8588 CB |
371 | /* |
372 | * Requiring Stylus Usage will ignore boot mouse | |
373 | * X/Y values and some cases of invalid Digitizer X/Y | |
374 | * values commonly reported. | |
375 | */ | |
545f4e99 PC |
376 | case HID_USAGE_STYLUS: |
377 | pen = 1; | |
378 | i++; | |
379 | break; | |
545f4e99 PC |
380 | } |
381 | break; | |
382 | ||
4134361a | 383 | case HID_COLLECTION_END: |
ec67bbed | 384 | /* reset UsagePage and Finger */ |
545f4e99 PC |
385 | finger = usage = 0; |
386 | break; | |
4134361a CB |
387 | |
388 | case HID_COLLECTION: | |
389 | i++; | |
390 | switch (report[i]) { | |
391 | case HID_COLLECTION_LOGICAL: | |
392 | i += wacom_parse_logical_collection(&report[i], | |
393 | features); | |
394 | break; | |
395 | } | |
396 | break; | |
545f4e99 PC |
397 | } |
398 | } | |
399 | ||
545f4e99 | 400 | out: |
384318ec | 401 | result = 0; |
545f4e99 PC |
402 | kfree(report); |
403 | return result; | |
404 | } | |
405 | ||
ec67bbed | 406 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) |
3b7307c2 DT |
407 | { |
408 | unsigned char *rep_data; | |
ec67bbed PC |
409 | int limit = 0, report_id = 2; |
410 | int error = -ENOMEM; | |
3b7307c2 | 411 | |
3b48c91c | 412 | rep_data = kmalloc(4, GFP_KERNEL); |
3b7307c2 | 413 | if (!rep_data) |
ec67bbed PC |
414 | return error; |
415 | ||
3b48c91c | 416 | /* ask to report tablet data if it is MT Tablet PC or |
3dc9f40d CB |
417 | * not a Tablet PC */ |
418 | if (features->type == TABLETPC2FG) { | |
ec67bbed PC |
419 | do { |
420 | rep_data[0] = 3; | |
421 | rep_data[1] = 4; | |
3b48c91c PC |
422 | rep_data[2] = 0; |
423 | rep_data[3] = 0; | |
ec67bbed | 424 | report_id = 3; |
5d7e7d47 EH |
425 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
426 | report_id, rep_data, 4, 1); | |
ec67bbed | 427 | if (error >= 0) |
5d7e7d47 EH |
428 | error = wacom_get_report(intf, |
429 | WAC_HID_FEATURE_REPORT, | |
430 | report_id, rep_data, 4, 1); | |
a417ea44 | 431 | } while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES); |
6e8ec537 | 432 | } else if (features->type != TABLETPC && |
d3825d51 | 433 | features->type != WIRELESS && |
6e8ec537 | 434 | features->device_type == BTN_TOOL_PEN) { |
ec67bbed PC |
435 | do { |
436 | rep_data[0] = 2; | |
437 | rep_data[1] = 2; | |
5d7e7d47 EH |
438 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
439 | report_id, rep_data, 2, 1); | |
ec67bbed | 440 | if (error >= 0) |
5d7e7d47 EH |
441 | error = wacom_get_report(intf, |
442 | WAC_HID_FEATURE_REPORT, | |
443 | report_id, rep_data, 2, 1); | |
a417ea44 | 444 | } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES); |
ec67bbed | 445 | } |
3b7307c2 DT |
446 | |
447 | kfree(rep_data); | |
448 | ||
449 | return error < 0 ? error : 0; | |
450 | } | |
451 | ||
ec67bbed PC |
452 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
453 | struct wacom_features *features) | |
454 | { | |
455 | int error = 0; | |
456 | struct usb_host_interface *interface = intf->cur_altsetting; | |
457 | struct hid_descriptor *hid_desc; | |
458 | ||
fed87e65 | 459 | /* default features */ |
ec67bbed | 460 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
461 | features->x_fuzz = 4; |
462 | features->y_fuzz = 4; | |
463 | features->pressure_fuzz = 0; | |
464 | features->distance_fuzz = 0; | |
ec67bbed | 465 | |
d3825d51 CB |
466 | /* |
467 | * The wireless device HID is basic and layout conflicts with | |
468 | * other tablets (monitor and touch interface can look like pen). | |
469 | * Skip the query for this type and modify defaults based on | |
470 | * interface number. | |
471 | */ | |
472 | if (features->type == WIRELESS) { | |
473 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
474 | features->device_type = 0; | |
475 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
476 | features->device_type = BTN_TOOL_DOUBLETAP; | |
477 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
478 | } | |
479 | } | |
480 | ||
3dc9f40d | 481 | /* only Tablet PCs and Bamboo P&T need to retrieve the info */ |
4a88081e PC |
482 | if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) && |
483 | (features->type != BAMBOO_PT)) | |
ec67bbed PC |
484 | goto out; |
485 | ||
486 | if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) { | |
487 | if (usb_get_extra_descriptor(&interface->endpoint[0], | |
488 | HID_DEVICET_REPORT, &hid_desc)) { | |
489 | printk("wacom: can not retrieve extra class descriptor\n"); | |
490 | error = 1; | |
491 | goto out; | |
492 | } | |
493 | } | |
494 | error = wacom_parse_hid(intf, hid_desc, features); | |
495 | if (error) | |
496 | goto out; | |
497 | ||
ec67bbed PC |
498 | out: |
499 | return error; | |
500 | } | |
501 | ||
4492efff PC |
502 | struct wacom_usbdev_data { |
503 | struct list_head list; | |
504 | struct kref kref; | |
505 | struct usb_device *dev; | |
506 | struct wacom_shared shared; | |
507 | }; | |
508 | ||
509 | static LIST_HEAD(wacom_udev_list); | |
510 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
511 | ||
512 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) | |
513 | { | |
514 | struct wacom_usbdev_data *data; | |
515 | ||
516 | list_for_each_entry(data, &wacom_udev_list, list) { | |
517 | if (data->dev == dev) { | |
518 | kref_get(&data->kref); | |
519 | return data; | |
520 | } | |
521 | } | |
522 | ||
523 | return NULL; | |
524 | } | |
525 | ||
526 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
527 | struct usb_device *dev) | |
528 | { | |
529 | struct wacom_usbdev_data *data; | |
530 | int retval = 0; | |
531 | ||
532 | mutex_lock(&wacom_udev_list_lock); | |
533 | ||
534 | data = wacom_get_usbdev_data(dev); | |
535 | if (!data) { | |
536 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
537 | if (!data) { | |
538 | retval = -ENOMEM; | |
539 | goto out; | |
540 | } | |
541 | ||
542 | kref_init(&data->kref); | |
543 | data->dev = dev; | |
544 | list_add_tail(&data->list, &wacom_udev_list); | |
545 | } | |
546 | ||
547 | wacom->shared = &data->shared; | |
548 | ||
549 | out: | |
550 | mutex_unlock(&wacom_udev_list_lock); | |
551 | return retval; | |
552 | } | |
553 | ||
554 | static void wacom_release_shared_data(struct kref *kref) | |
555 | { | |
556 | struct wacom_usbdev_data *data = | |
557 | container_of(kref, struct wacom_usbdev_data, kref); | |
558 | ||
559 | mutex_lock(&wacom_udev_list_lock); | |
560 | list_del(&data->list); | |
561 | mutex_unlock(&wacom_udev_list_lock); | |
562 | ||
563 | kfree(data); | |
564 | } | |
565 | ||
566 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
567 | { | |
568 | struct wacom_usbdev_data *data; | |
569 | ||
570 | if (wacom->shared) { | |
571 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
572 | kref_put(&data->kref, wacom_release_shared_data); | |
573 | wacom->shared = NULL; | |
574 | } | |
575 | } | |
576 | ||
5d7e7d47 EH |
577 | static int wacom_led_control(struct wacom *wacom) |
578 | { | |
579 | unsigned char *buf; | |
9b5b95dd | 580 | int retval; |
5d7e7d47 EH |
581 | |
582 | buf = kzalloc(9, GFP_KERNEL); | |
583 | if (!buf) | |
584 | return -ENOMEM; | |
585 | ||
9b5b95dd JG |
586 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
587 | wacom->wacom_wac.features.type <= INTUOS5L) { | |
588 | /* | |
589 | * Touch Ring and crop mark LED luminance may take on | |
590 | * one of four values: | |
591 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
592 | */ | |
593 | int ring_led = wacom->led.select[0] & 0x03; | |
594 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
595 | int crop_lum = 0; | |
596 | ||
597 | buf[0] = WAC_CMD_LED_CONTROL; | |
598 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
599 | } | |
600 | else { | |
601 | int led = wacom->led.select[0] | 0x4; | |
602 | ||
603 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
604 | wacom->wacom_wac.features.type == WACOM_24HD) | |
605 | led |= (wacom->led.select[1] << 4) | 0x40; | |
606 | ||
607 | buf[0] = WAC_CMD_LED_CONTROL; | |
608 | buf[1] = led; | |
609 | buf[2] = wacom->led.llv; | |
610 | buf[3] = wacom->led.hlv; | |
611 | buf[4] = wacom->led.img_lum; | |
612 | } | |
5d7e7d47 EH |
613 | |
614 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
615 | buf, 9, WAC_CMD_RETRIES); | |
616 | kfree(buf); | |
617 | ||
618 | return retval; | |
619 | } | |
620 | ||
621 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
622 | { | |
623 | unsigned char *buf; | |
624 | int i, retval; | |
625 | ||
626 | buf = kzalloc(259, GFP_KERNEL); | |
627 | if (!buf) | |
628 | return -ENOMEM; | |
629 | ||
630 | /* Send 'start' command */ | |
631 | buf[0] = WAC_CMD_ICON_START; | |
632 | buf[1] = 1; | |
633 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
634 | buf, 2, WAC_CMD_RETRIES); | |
635 | if (retval < 0) | |
636 | goto out; | |
637 | ||
638 | buf[0] = WAC_CMD_ICON_XFER; | |
639 | buf[1] = button_id & 0x07; | |
640 | for (i = 0; i < 4; i++) { | |
641 | buf[2] = i; | |
642 | memcpy(buf + 3, img + i * 256, 256); | |
643 | ||
644 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
645 | buf, 259, WAC_CMD_RETRIES); | |
646 | if (retval < 0) | |
647 | break; | |
648 | } | |
649 | ||
650 | /* Send 'stop' */ | |
651 | buf[0] = WAC_CMD_ICON_START; | |
652 | buf[1] = 0; | |
653 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
654 | buf, 2, WAC_CMD_RETRIES); | |
655 | ||
656 | out: | |
657 | kfree(buf); | |
658 | return retval; | |
659 | } | |
660 | ||
09e7d941 | 661 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
662 | const char *buf, size_t count) |
663 | { | |
664 | struct wacom *wacom = dev_get_drvdata(dev); | |
665 | unsigned int id; | |
666 | int err; | |
667 | ||
668 | err = kstrtouint(buf, 10, &id); | |
669 | if (err) | |
670 | return err; | |
671 | ||
672 | mutex_lock(&wacom->lock); | |
673 | ||
09e7d941 | 674 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
675 | err = wacom_led_control(wacom); |
676 | ||
677 | mutex_unlock(&wacom->lock); | |
678 | ||
679 | return err < 0 ? err : count; | |
680 | } | |
681 | ||
09e7d941 PC |
682 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
683 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
684 | struct device_attribute *attr, const char *buf, size_t count) \ | |
685 | { \ | |
686 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
687 | } \ | |
04c59abd PC |
688 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
689 | struct device_attribute *attr, char *buf) \ | |
690 | { \ | |
691 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
692 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ | |
693 | } \ | |
694 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
695 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
696 | wacom_led##SET_ID##_select_store) |
697 | ||
698 | DEVICE_LED_SELECT_ATTR(0); | |
699 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
700 | |
701 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
702 | const char *buf, size_t count) | |
703 | { | |
704 | unsigned int value; | |
705 | int err; | |
706 | ||
707 | err = kstrtouint(buf, 10, &value); | |
708 | if (err) | |
709 | return err; | |
710 | ||
711 | mutex_lock(&wacom->lock); | |
712 | ||
713 | *dest = value & 0x7f; | |
714 | err = wacom_led_control(wacom); | |
715 | ||
716 | mutex_unlock(&wacom->lock); | |
717 | ||
718 | return err < 0 ? err : count; | |
719 | } | |
720 | ||
721 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
722 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
723 | struct device_attribute *attr, const char *buf, size_t count) \ | |
724 | { \ | |
725 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
726 | \ | |
727 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
728 | buf, count); \ | |
729 | } \ | |
730 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
731 | NULL, wacom_##name##_luminance_store) | |
732 | ||
733 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
734 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
735 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
736 | ||
737 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
738 | const char *buf, size_t count) | |
739 | { | |
740 | struct wacom *wacom = dev_get_drvdata(dev); | |
741 | int err; | |
742 | ||
743 | if (count != 1024) | |
744 | return -EINVAL; | |
745 | ||
746 | mutex_lock(&wacom->lock); | |
747 | ||
748 | err = wacom_led_putimage(wacom, button_id, buf); | |
749 | ||
750 | mutex_unlock(&wacom->lock); | |
751 | ||
752 | return err < 0 ? err : count; | |
753 | } | |
754 | ||
755 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
756 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
757 | struct device_attribute *attr, const char *buf, size_t count) \ | |
758 | { \ | |
759 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
760 | } \ | |
761 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
762 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
763 | ||
764 | DEVICE_BTNIMG_ATTR(0); | |
765 | DEVICE_BTNIMG_ATTR(1); | |
766 | DEVICE_BTNIMG_ATTR(2); | |
767 | DEVICE_BTNIMG_ATTR(3); | |
768 | DEVICE_BTNIMG_ATTR(4); | |
769 | DEVICE_BTNIMG_ATTR(5); | |
770 | DEVICE_BTNIMG_ATTR(6); | |
771 | DEVICE_BTNIMG_ATTR(7); | |
772 | ||
09e7d941 PC |
773 | static struct attribute *cintiq_led_attrs[] = { |
774 | &dev_attr_status_led0_select.attr, | |
775 | &dev_attr_status_led1_select.attr, | |
776 | NULL | |
777 | }; | |
778 | ||
779 | static struct attribute_group cintiq_led_attr_group = { | |
780 | .name = "wacom_led", | |
781 | .attrs = cintiq_led_attrs, | |
782 | }; | |
783 | ||
784 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
785 | &dev_attr_status0_luminance.attr, |
786 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 787 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
788 | &dev_attr_buttons_luminance.attr, |
789 | &dev_attr_button0_rawimg.attr, | |
790 | &dev_attr_button1_rawimg.attr, | |
791 | &dev_attr_button2_rawimg.attr, | |
792 | &dev_attr_button3_rawimg.attr, | |
793 | &dev_attr_button4_rawimg.attr, | |
794 | &dev_attr_button5_rawimg.attr, | |
795 | &dev_attr_button6_rawimg.attr, | |
796 | &dev_attr_button7_rawimg.attr, | |
797 | NULL | |
798 | }; | |
799 | ||
09e7d941 | 800 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 801 | .name = "wacom_led", |
09e7d941 | 802 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
803 | }; |
804 | ||
9b5b95dd JG |
805 | static struct attribute *intuos5_led_attrs[] = { |
806 | &dev_attr_status0_luminance.attr, | |
807 | &dev_attr_status_led0_select.attr, | |
808 | NULL | |
809 | }; | |
810 | ||
811 | static struct attribute_group intuos5_led_attr_group = { | |
812 | .name = "wacom_led", | |
813 | .attrs = intuos5_led_attrs, | |
814 | }; | |
815 | ||
5d7e7d47 EH |
816 | static int wacom_initialize_leds(struct wacom *wacom) |
817 | { | |
818 | int error; | |
819 | ||
09e7d941 PC |
820 | /* Initialize default values */ |
821 | switch (wacom->wacom_wac.features.type) { | |
822 | case INTUOS4: | |
823 | case INTUOS4L: | |
824 | wacom->led.select[0] = 0; | |
825 | wacom->led.select[1] = 0; | |
f4fa9a6d | 826 | wacom->led.llv = 10; |
5d7e7d47 EH |
827 | wacom->led.hlv = 20; |
828 | wacom->led.img_lum = 10; | |
09e7d941 PC |
829 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
830 | &intuos4_led_attr_group); | |
831 | break; | |
832 | ||
246835fc | 833 | case WACOM_24HD: |
09e7d941 PC |
834 | case WACOM_21UX2: |
835 | wacom->led.select[0] = 0; | |
836 | wacom->led.select[1] = 0; | |
837 | wacom->led.llv = 0; | |
838 | wacom->led.hlv = 0; | |
839 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
840 | |
841 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
842 | &cintiq_led_attr_group); |
843 | break; | |
844 | ||
9b5b95dd JG |
845 | case INTUOS5S: |
846 | case INTUOS5: | |
847 | case INTUOS5L: | |
848 | wacom->led.select[0] = 0; | |
849 | wacom->led.select[1] = 0; | |
850 | wacom->led.llv = 32; | |
851 | wacom->led.hlv = 0; | |
852 | wacom->led.img_lum = 0; | |
853 | ||
854 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
855 | &intuos5_led_attr_group); | |
856 | break; | |
857 | ||
09e7d941 PC |
858 | default: |
859 | return 0; | |
5d7e7d47 EH |
860 | } |
861 | ||
09e7d941 PC |
862 | if (error) { |
863 | dev_err(&wacom->intf->dev, | |
864 | "cannot create sysfs group err: %d\n", error); | |
865 | return error; | |
866 | } | |
867 | wacom_led_control(wacom); | |
868 | ||
5d7e7d47 EH |
869 | return 0; |
870 | } | |
871 | ||
872 | static void wacom_destroy_leds(struct wacom *wacom) | |
873 | { | |
09e7d941 PC |
874 | switch (wacom->wacom_wac.features.type) { |
875 | case INTUOS4: | |
876 | case INTUOS4L: | |
5d7e7d47 | 877 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
878 | &intuos4_led_attr_group); |
879 | break; | |
880 | ||
246835fc | 881 | case WACOM_24HD: |
09e7d941 PC |
882 | case WACOM_21UX2: |
883 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
884 | &cintiq_led_attr_group); | |
885 | break; | |
9b5b95dd JG |
886 | |
887 | case INTUOS5S: | |
888 | case INTUOS5: | |
889 | case INTUOS5L: | |
890 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
891 | &intuos5_led_attr_group); | |
892 | break; | |
5d7e7d47 EH |
893 | } |
894 | } | |
895 | ||
a1d552cc CB |
896 | static enum power_supply_property wacom_battery_props[] = { |
897 | POWER_SUPPLY_PROP_CAPACITY | |
898 | }; | |
899 | ||
900 | static int wacom_battery_get_property(struct power_supply *psy, | |
901 | enum power_supply_property psp, | |
902 | union power_supply_propval *val) | |
903 | { | |
904 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
905 | int ret = 0; | |
906 | ||
907 | switch (psp) { | |
908 | case POWER_SUPPLY_PROP_CAPACITY: | |
909 | val->intval = | |
910 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
911 | break; | |
912 | default: | |
913 | ret = -EINVAL; | |
914 | break; | |
915 | } | |
916 | ||
917 | return ret; | |
918 | } | |
919 | ||
920 | static int wacom_initialize_battery(struct wacom *wacom) | |
921 | { | |
922 | int error = 0; | |
923 | ||
924 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
925 | wacom->battery.properties = wacom_battery_props; | |
926 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
927 | wacom->battery.get_property = wacom_battery_get_property; | |
928 | wacom->battery.name = "wacom_battery"; | |
929 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
930 | wacom->battery.use_for_apm = 0; | |
931 | ||
932 | error = power_supply_register(&wacom->usbdev->dev, | |
933 | &wacom->battery); | |
934 | } | |
935 | ||
936 | return error; | |
937 | } | |
938 | ||
939 | static void wacom_destroy_battery(struct wacom *wacom) | |
940 | { | |
941 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) | |
942 | power_supply_unregister(&wacom->battery); | |
943 | } | |
944 | ||
3aac0ef1 CB |
945 | static int wacom_register_input(struct wacom *wacom) |
946 | { | |
947 | struct input_dev *input_dev; | |
948 | struct usb_interface *intf = wacom->intf; | |
949 | struct usb_device *dev = interface_to_usbdev(intf); | |
950 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
951 | int error; | |
952 | ||
953 | input_dev = input_allocate_device(); | |
954 | if (!input_dev) | |
955 | return -ENOMEM; | |
956 | ||
957 | input_dev->name = wacom_wac->name; | |
958 | input_dev->dev.parent = &intf->dev; | |
959 | input_dev->open = wacom_open; | |
960 | input_dev->close = wacom_close; | |
961 | usb_to_input_id(dev, &input_dev->id); | |
962 | input_set_drvdata(input_dev, wacom); | |
963 | ||
964 | wacom_wac->input = input_dev; | |
965 | wacom_setup_input_capabilities(input_dev, wacom_wac); | |
966 | ||
967 | error = input_register_device(input_dev); | |
968 | if (error) { | |
969 | input_free_device(input_dev); | |
970 | wacom_wac->input = NULL; | |
971 | } | |
972 | ||
973 | return error; | |
974 | } | |
975 | ||
16bf288c CB |
976 | static void wacom_wireless_work(struct work_struct *work) |
977 | { | |
978 | struct wacom *wacom = container_of(work, struct wacom, work); | |
979 | struct usb_device *usbdev = wacom->usbdev; | |
980 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
981 | ||
982 | /* | |
983 | * Regardless if this is a disconnect or a new tablet, | |
984 | * remove any existing input devices. | |
985 | */ | |
986 | ||
987 | /* Stylus interface */ | |
988 | wacom = usb_get_intfdata(usbdev->config->interface[1]); | |
989 | if (wacom->wacom_wac.input) | |
990 | input_unregister_device(wacom->wacom_wac.input); | |
991 | wacom->wacom_wac.input = 0; | |
992 | ||
993 | /* Touch interface */ | |
994 | wacom = usb_get_intfdata(usbdev->config->interface[2]); | |
995 | if (wacom->wacom_wac.input) | |
996 | input_unregister_device(wacom->wacom_wac.input); | |
997 | wacom->wacom_wac.input = 0; | |
998 | ||
999 | if (wacom_wac->pid == 0) { | |
1000 | printk(KERN_INFO "wacom: wireless tablet disconnected\n"); | |
1001 | } else { | |
1002 | const struct usb_device_id *id = wacom_ids; | |
1003 | ||
1004 | printk(KERN_INFO | |
1005 | "wacom: wireless tablet connected with PID %x\n", | |
1006 | wacom_wac->pid); | |
1007 | ||
1008 | while (id->match_flags) { | |
1009 | if (id->idVendor == USB_VENDOR_ID_WACOM && | |
1010 | id->idProduct == wacom_wac->pid) | |
1011 | break; | |
1012 | id++; | |
1013 | } | |
1014 | ||
1015 | if (!id->match_flags) { | |
1016 | printk(KERN_INFO | |
1017 | "wacom: ignorning unknown PID.\n"); | |
1018 | return; | |
1019 | } | |
1020 | ||
1021 | /* Stylus interface */ | |
1022 | wacom = usb_get_intfdata(usbdev->config->interface[1]); | |
1023 | wacom_wac = &wacom->wacom_wac; | |
1024 | wacom_wac->features = | |
1025 | *((struct wacom_features *)id->driver_info); | |
1026 | wacom_wac->features.device_type = BTN_TOOL_PEN; | |
1027 | wacom_register_input(wacom); | |
1028 | ||
1029 | /* Touch interface */ | |
1030 | wacom = usb_get_intfdata(usbdev->config->interface[2]); | |
1031 | wacom_wac = &wacom->wacom_wac; | |
1032 | wacom_wac->features = | |
1033 | *((struct wacom_features *)id->driver_info); | |
1034 | wacom_wac->features.pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1035 | wacom_wac->features.device_type = BTN_TOOL_FINGER; | |
1036 | wacom_set_phy_from_res(&wacom_wac->features); | |
1037 | wacom_wac->features.x_max = wacom_wac->features.y_max = 4096; | |
1038 | wacom_register_input(wacom); | |
1039 | } | |
1040 | } | |
1041 | ||
3bea733a PC |
1042 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1043 | { | |
1044 | struct usb_device *dev = interface_to_usbdev(intf); | |
1045 | struct usb_endpoint_descriptor *endpoint; | |
1046 | struct wacom *wacom; | |
1047 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1048 | struct wacom_features *features; |
e33da8a5 | 1049 | int error; |
3bea733a | 1050 | |
e33da8a5 | 1051 | if (!id->driver_info) |
b036f6fb BB |
1052 | return -EINVAL; |
1053 | ||
3bea733a | 1054 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1055 | if (!wacom) |
1056 | return -ENOMEM; | |
e33da8a5 | 1057 | |
51269fe8 | 1058 | wacom_wac = &wacom->wacom_wac; |
e33da8a5 JC |
1059 | wacom_wac->features = *((struct wacom_features *)id->driver_info); |
1060 | features = &wacom_wac->features; | |
1061 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1062 | error = -EINVAL; | |
3bea733a | 1063 | goto fail1; |
e33da8a5 | 1064 | } |
3bea733a | 1065 | |
997ea58e DM |
1066 | wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX, |
1067 | GFP_KERNEL, &wacom->data_dma); | |
e33da8a5 JC |
1068 | if (!wacom_wac->data) { |
1069 | error = -ENOMEM; | |
3bea733a | 1070 | goto fail1; |
e33da8a5 | 1071 | } |
3bea733a PC |
1072 | |
1073 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
1074 | if (!wacom->irq) { |
1075 | error = -ENOMEM; | |
3bea733a | 1076 | goto fail2; |
e33da8a5 | 1077 | } |
3bea733a PC |
1078 | |
1079 | wacom->usbdev = dev; | |
e7224094 ON |
1080 | wacom->intf = intf; |
1081 | mutex_init(&wacom->lock); | |
16bf288c | 1082 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1083 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1084 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1085 | ||
545f4e99 PC |
1086 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1087 | ||
ec67bbed PC |
1088 | /* Retrieve the physical and logical size for OEM devices */ |
1089 | error = wacom_retrieve_hid_descriptor(intf, features); | |
1090 | if (error) | |
4b6d4434 | 1091 | goto fail3; |
545f4e99 | 1092 | |
ae584ca4 JG |
1093 | /* |
1094 | * Intuos5 has no useful data about its touch interface in its | |
1095 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1096 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1097 | */ | |
1098 | if (features->type >= INTUOS5S && features->type <= INTUOS5L) { | |
1099 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { | |
1100 | features->device_type = BTN_TOOL_FINGER; | |
1101 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1102 | ||
1103 | features->x_phy = | |
1104 | (features->x_max * 100) / features->x_resolution; | |
1105 | features->y_phy = | |
1106 | (features->y_max * 100) / features->y_resolution; | |
1107 | ||
1108 | features->x_max = 4096; | |
1109 | features->y_max = 4096; | |
1110 | } else { | |
1111 | features->device_type = BTN_TOOL_PEN; | |
1112 | } | |
1113 | } | |
1114 | ||
bc73dd39 HR |
1115 | wacom_setup_device_quirks(features); |
1116 | ||
49b764ae PC |
1117 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
1118 | ||
bc73dd39 | 1119 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
49b764ae PC |
1120 | /* Append the device type to the name */ |
1121 | strlcat(wacom_wac->name, | |
1122 | features->device_type == BTN_TOOL_PEN ? | |
1123 | " Pen" : " Finger", | |
1124 | sizeof(wacom_wac->name)); | |
4492efff PC |
1125 | |
1126 | error = wacom_add_shared_data(wacom_wac, dev); | |
1127 | if (error) | |
1128 | goto fail3; | |
49b764ae PC |
1129 | } |
1130 | ||
3bea733a PC |
1131 | usb_fill_int_urb(wacom->irq, dev, |
1132 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 1133 | wacom_wac->data, features->pktlen, |
8d32e3ae | 1134 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
1135 | wacom->irq->transfer_dma = wacom->data_dma; |
1136 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
1137 | ||
5d7e7d47 | 1138 | error = wacom_initialize_leds(wacom); |
5014186d | 1139 | if (error) |
4492efff | 1140 | goto fail4; |
3bea733a | 1141 | |
a1d552cc CB |
1142 | error = wacom_initialize_battery(wacom); |
1143 | if (error) | |
1144 | goto fail5; | |
1145 | ||
d3825d51 CB |
1146 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
1147 | error = wacom_register_input(wacom); | |
1148 | if (error) | |
a1d552cc | 1149 | goto fail6; |
d3825d51 | 1150 | } |
5d7e7d47 | 1151 | |
ec67bbed PC |
1152 | /* Note that if query fails it is not a hard failure */ |
1153 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
1154 | |
1155 | usb_set_intfdata(intf, wacom); | |
d3825d51 CB |
1156 | |
1157 | if (features->quirks & WACOM_QUIRK_MONITOR) { | |
1158 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) | |
1159 | goto fail5; | |
1160 | } | |
1161 | ||
3bea733a PC |
1162 | return 0; |
1163 | ||
a1d552cc | 1164 | fail6: wacom_destroy_battery(wacom); |
5d7e7d47 | 1165 | fail5: wacom_destroy_leds(wacom); |
4492efff | 1166 | fail4: wacom_remove_shared_data(wacom_wac); |
5014186d | 1167 | fail3: usb_free_urb(wacom->irq); |
997ea58e | 1168 | fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
3aac0ef1 | 1169 | fail1: kfree(wacom); |
5014186d | 1170 | return error; |
3bea733a PC |
1171 | } |
1172 | ||
1173 | static void wacom_disconnect(struct usb_interface *intf) | |
1174 | { | |
e7224094 | 1175 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
1176 | |
1177 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
1178 | |
1179 | usb_kill_urb(wacom->irq); | |
16bf288c | 1180 | cancel_work_sync(&wacom->work); |
d3825d51 CB |
1181 | if (wacom->wacom_wac.input) |
1182 | input_unregister_device(wacom->wacom_wac.input); | |
a1d552cc | 1183 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1184 | wacom_destroy_leds(wacom); |
e7224094 | 1185 | usb_free_urb(wacom->irq); |
997ea58e | 1186 | usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
51269fe8 DT |
1187 | wacom->wacom_wac.data, wacom->data_dma); |
1188 | wacom_remove_shared_data(&wacom->wacom_wac); | |
e7224094 ON |
1189 | kfree(wacom); |
1190 | } | |
1191 | ||
1192 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
1193 | { | |
1194 | struct wacom *wacom = usb_get_intfdata(intf); | |
1195 | ||
1196 | mutex_lock(&wacom->lock); | |
1197 | usb_kill_urb(wacom->irq); | |
1198 | mutex_unlock(&wacom->lock); | |
1199 | ||
1200 | return 0; | |
1201 | } | |
1202 | ||
1203 | static int wacom_resume(struct usb_interface *intf) | |
1204 | { | |
1205 | struct wacom *wacom = usb_get_intfdata(intf); | |
51269fe8 | 1206 | struct wacom_features *features = &wacom->wacom_wac.features; |
5d7e7d47 | 1207 | int rv = 0; |
e7224094 ON |
1208 | |
1209 | mutex_lock(&wacom->lock); | |
38101475 PC |
1210 | |
1211 | /* switch to wacom mode first */ | |
1212 | wacom_query_tablet_data(intf, features); | |
5d7e7d47 | 1213 | wacom_led_control(wacom); |
38101475 | 1214 | |
d3825d51 CB |
1215 | if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR) |
1216 | && usb_submit_urb(wacom->irq, GFP_NOIO) < 0) | |
5d7e7d47 | 1217 | rv = -EIO; |
38101475 | 1218 | |
e7224094 ON |
1219 | mutex_unlock(&wacom->lock); |
1220 | ||
1221 | return rv; | |
1222 | } | |
1223 | ||
1224 | static int wacom_reset_resume(struct usb_interface *intf) | |
1225 | { | |
1226 | return wacom_resume(intf); | |
3bea733a PC |
1227 | } |
1228 | ||
1229 | static struct usb_driver wacom_driver = { | |
1230 | .name = "wacom", | |
b036f6fb | 1231 | .id_table = wacom_ids, |
3bea733a PC |
1232 | .probe = wacom_probe, |
1233 | .disconnect = wacom_disconnect, | |
e7224094 ON |
1234 | .suspend = wacom_suspend, |
1235 | .resume = wacom_resume, | |
1236 | .reset_resume = wacom_reset_resume, | |
1237 | .supports_autosuspend = 1, | |
3bea733a PC |
1238 | }; |
1239 | ||
08642e7c | 1240 | module_usb_driver(wacom_driver); |