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 | ||
14 | #include "wacom.h" | |
15 | #include "wacom_wac.h" | |
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 | |
31 | #define HID_COLLECTION 0xc0 | |
32 | ||
33 | enum { | |
34 | WCM_UNDEFINED = 0, | |
35 | WCM_DESKTOP, | |
36 | WCM_DIGITIZER, | |
37 | }; | |
38 | ||
39 | struct hid_descriptor { | |
40 | struct usb_descriptor_header header; | |
41 | __le16 bcdHID; | |
42 | u8 bCountryCode; | |
43 | u8 bNumDescriptors; | |
44 | u8 bDescriptorType; | |
45 | __le16 wDescriptorLength; | |
46 | } __attribute__ ((packed)); | |
47 | ||
48 | /* defines to get/set USB message */ | |
3bea733a PC |
49 | #define USB_REQ_GET_REPORT 0x01 |
50 | #define USB_REQ_SET_REPORT 0x09 | |
545f4e99 | 51 | #define WAC_HID_FEATURE_REPORT 0x03 |
3bea733a PC |
52 | |
53 | static int usb_get_report(struct usb_interface *intf, unsigned char type, | |
54 | unsigned char id, void *buf, int size) | |
55 | { | |
56 | return usb_control_msg(interface_to_usbdev(intf), | |
57 | usb_rcvctrlpipe(interface_to_usbdev(intf), 0), | |
58 | USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
59 | (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, | |
60 | buf, size, 100); | |
61 | } | |
62 | ||
63 | static int usb_set_report(struct usb_interface *intf, unsigned char type, | |
64 | unsigned char id, void *buf, int size) | |
65 | { | |
66 | return usb_control_msg(interface_to_usbdev(intf), | |
67 | usb_sndctrlpipe(interface_to_usbdev(intf), 0), | |
68 | USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
69 | (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, | |
70 | buf, size, 1000); | |
71 | } | |
72 | ||
73 | static struct input_dev * get_input_dev(struct wacom_combo *wcombo) | |
74 | { | |
75 | return wcombo->wacom->dev; | |
76 | } | |
77 | ||
54c9b226 | 78 | static void wacom_sys_irq(struct urb *urb) |
3bea733a PC |
79 | { |
80 | struct wacom *wacom = urb->context; | |
81 | struct wacom_combo wcombo; | |
82 | int retval; | |
83 | ||
84 | switch (urb->status) { | |
85 | case 0: | |
86 | /* success */ | |
87 | break; | |
88 | case -ECONNRESET: | |
89 | case -ENOENT: | |
90 | case -ESHUTDOWN: | |
91 | /* this urb is terminated, clean up */ | |
ea3e6c59 | 92 | dbg("%s - urb shutting down with status: %d", __func__, urb->status); |
3bea733a PC |
93 | return; |
94 | default: | |
ea3e6c59 | 95 | dbg("%s - nonzero urb status received: %d", __func__, urb->status); |
3bea733a PC |
96 | goto exit; |
97 | } | |
98 | ||
99 | wcombo.wacom = wacom; | |
100 | wcombo.urb = urb; | |
3bea733a PC |
101 | |
102 | if (wacom_wac_irq(wacom->wacom_wac, (void *)&wcombo)) | |
103 | input_sync(get_input_dev(&wcombo)); | |
104 | ||
105 | exit: | |
e7224094 | 106 | usb_mark_last_busy(wacom->usbdev); |
3bea733a PC |
107 | retval = usb_submit_urb (urb, GFP_ATOMIC); |
108 | if (retval) | |
109 | err ("%s - usb_submit_urb failed with result %d", | |
ea3e6c59 | 110 | __func__, retval); |
3bea733a PC |
111 | } |
112 | ||
113 | void wacom_report_key(void *wcombo, unsigned int key_type, int key_data) | |
114 | { | |
115 | input_report_key(get_input_dev((struct wacom_combo *)wcombo), key_type, key_data); | |
3bea733a PC |
116 | } |
117 | ||
118 | void wacom_report_abs(void *wcombo, unsigned int abs_type, int abs_data) | |
119 | { | |
120 | input_report_abs(get_input_dev((struct wacom_combo *)wcombo), abs_type, abs_data); | |
3bea733a PC |
121 | } |
122 | ||
123 | void wacom_report_rel(void *wcombo, unsigned int rel_type, int rel_data) | |
124 | { | |
125 | input_report_rel(get_input_dev((struct wacom_combo *)wcombo), rel_type, rel_data); | |
3bea733a PC |
126 | } |
127 | ||
128 | void wacom_input_event(void *wcombo, unsigned int type, unsigned int code, int value) | |
129 | { | |
130 | input_event(get_input_dev((struct wacom_combo *)wcombo), type, code, value); | |
3bea733a PC |
131 | } |
132 | ||
133 | __u16 wacom_be16_to_cpu(unsigned char *data) | |
134 | { | |
135 | __u16 value; | |
136 | value = be16_to_cpu(*(__be16 *) data); | |
137 | return value; | |
138 | } | |
139 | ||
140 | __u16 wacom_le16_to_cpu(unsigned char *data) | |
141 | { | |
142 | __u16 value; | |
8d32e3ae | 143 | value = le16_to_cpu(*(__le16 *) data); |
3bea733a PC |
144 | return value; |
145 | } | |
146 | ||
3bea733a PC |
147 | void wacom_input_sync(void *wcombo) |
148 | { | |
149 | input_sync(get_input_dev((struct wacom_combo *)wcombo)); | |
3bea733a PC |
150 | } |
151 | ||
152 | static int wacom_open(struct input_dev *dev) | |
153 | { | |
7791bdae | 154 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 155 | |
e7224094 ON |
156 | mutex_lock(&wacom->lock); |
157 | ||
3bea733a | 158 | wacom->irq->dev = wacom->usbdev; |
e7224094 ON |
159 | |
160 | if (usb_autopm_get_interface(wacom->intf) < 0) { | |
161 | mutex_unlock(&wacom->lock); | |
3bea733a | 162 | return -EIO; |
e7224094 ON |
163 | } |
164 | ||
165 | if (usb_submit_urb(wacom->irq, GFP_KERNEL)) { | |
166 | usb_autopm_put_interface(wacom->intf); | |
167 | mutex_unlock(&wacom->lock); | |
168 | return -EIO; | |
169 | } | |
170 | ||
171 | wacom->open = 1; | |
172 | wacom->intf->needs_remote_wakeup = 1; | |
3bea733a | 173 | |
e7224094 | 174 | mutex_unlock(&wacom->lock); |
3bea733a PC |
175 | return 0; |
176 | } | |
177 | ||
178 | static void wacom_close(struct input_dev *dev) | |
179 | { | |
7791bdae | 180 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 181 | |
e7224094 | 182 | mutex_lock(&wacom->lock); |
3bea733a | 183 | usb_kill_urb(wacom->irq); |
e7224094 ON |
184 | wacom->open = 0; |
185 | wacom->intf->needs_remote_wakeup = 0; | |
186 | mutex_unlock(&wacom->lock); | |
3bea733a PC |
187 | } |
188 | ||
7ecfbfd3 PC |
189 | void input_dev_mo(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
190 | { | |
545f4e99 | 191 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_1) | |
7b19ada2 | 192 | BIT_MASK(BTN_5); |
7ecfbfd3 PC |
193 | input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0); |
194 | } | |
195 | ||
3bea733a PC |
196 | void input_dev_g4(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
197 | { | |
7b19ada2 JS |
198 | input_dev->evbit[0] |= BIT_MASK(EV_MSC); |
199 | input_dev->mscbit[0] |= BIT_MASK(MSC_SERIAL); | |
200 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_FINGER); | |
545f4e99 | 201 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_0) | |
7b19ada2 | 202 | BIT_MASK(BTN_4); |
3bea733a PC |
203 | } |
204 | ||
205 | void input_dev_g(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
206 | { | |
7b19ada2 JS |
207 | input_dev->evbit[0] |= BIT_MASK(EV_REL); |
208 | input_dev->relbit[0] |= BIT_MASK(REL_WHEEL); | |
545f4e99 | 209 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_LEFT) | |
7b19ada2 JS |
210 | BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); |
211 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_RUBBER) | | |
ec67bbed | 212 | BIT_MASK(BTN_TOOL_PEN) | BIT_MASK(BTN_STYLUS) | |
7b19ada2 | 213 | BIT_MASK(BTN_TOOL_MOUSE) | BIT_MASK(BTN_STYLUS2); |
e33da8a5 JC |
214 | input_set_abs_params(input_dev, ABS_DISTANCE, |
215 | 0, wacom_wac->features.distance_max, 0, 0); | |
3bea733a PC |
216 | } |
217 | ||
8d32e3ae | 218 | void input_dev_i3s(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
3bea733a | 219 | { |
7b19ada2 | 220 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_FINGER); |
545f4e99 | 221 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_0) | |
7b19ada2 | 222 | BIT_MASK(BTN_1) | BIT_MASK(BTN_2) | BIT_MASK(BTN_3); |
071e0a2a | 223 | input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0); |
0e1763f5 | 224 | input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0); |
8d32e3ae PC |
225 | } |
226 | ||
227 | void input_dev_i3(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
228 | { | |
545f4e99 | 229 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_4) | |
7b19ada2 | 230 | BIT_MASK(BTN_5) | BIT_MASK(BTN_6) | BIT_MASK(BTN_7); |
071e0a2a | 231 | input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0); |
3bea733a PC |
232 | } |
233 | ||
6f660f12 PC |
234 | void input_dev_i4s(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
235 | { | |
236 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_FINGER); | |
237 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_0) | BIT_MASK(BTN_1) | BIT_MASK(BTN_2) | BIT_MASK(BTN_3); | |
238 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_4) | BIT_MASK(BTN_5) | BIT_MASK(BTN_6); | |
239 | input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0); | |
240 | } | |
241 | ||
242 | void input_dev_i4(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
243 | { | |
244 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_7) | BIT_MASK(BTN_8); | |
245 | } | |
246 | ||
0e1763f5 PC |
247 | void input_dev_bee(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
248 | { | |
545f4e99 | 249 | input_dev->keybit[BIT_WORD(BTN_MISC)] |= BIT_MASK(BTN_8) | BIT_MASK(BTN_9); |
0e1763f5 PC |
250 | } |
251 | ||
3bea733a PC |
252 | void input_dev_i(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
253 | { | |
7b19ada2 JS |
254 | input_dev->evbit[0] |= BIT_MASK(EV_MSC) | BIT_MASK(EV_REL); |
255 | input_dev->mscbit[0] |= BIT_MASK(MSC_SERIAL); | |
256 | input_dev->relbit[0] |= BIT_MASK(REL_WHEEL); | |
545f4e99 | 257 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_LEFT) | |
7b19ada2 JS |
258 | BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE) | |
259 | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); | |
260 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_RUBBER) | | |
ec67bbed | 261 | BIT_MASK(BTN_TOOL_PEN) | BIT_MASK(BTN_STYLUS) | |
7b19ada2 JS |
262 | BIT_MASK(BTN_TOOL_MOUSE) | BIT_MASK(BTN_TOOL_BRUSH) | |
263 | BIT_MASK(BTN_TOOL_PENCIL) | BIT_MASK(BTN_TOOL_AIRBRUSH) | | |
264 | BIT_MASK(BTN_TOOL_LENS) | BIT_MASK(BTN_STYLUS2); | |
e33da8a5 JC |
265 | input_set_abs_params(input_dev, ABS_DISTANCE, |
266 | 0, wacom_wac->features.distance_max, 0, 0); | |
3bea733a PC |
267 | input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0); |
268 | input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0); | |
269 | input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0); | |
270 | input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0); | |
271 | input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0); | |
272 | } | |
273 | ||
274 | void input_dev_pl(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
275 | { | |
ec67bbed PC |
276 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_PEN) | |
277 | BIT_MASK(BTN_STYLUS) | BIT_MASK(BTN_STYLUS2); | |
3bea733a PC |
278 | } |
279 | ||
280 | void input_dev_pt(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
281 | { | |
7b19ada2 | 282 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_RUBBER); |
3bea733a PC |
283 | } |
284 | ||
ec67bbed PC |
285 | void input_dev_tpc(struct input_dev *input_dev, struct wacom_wac *wacom_wac) |
286 | { | |
e33da8a5 JC |
287 | struct wacom_features *features = &wacom_wac->features; |
288 | ||
289 | if (features->device_type == BTN_TOOL_DOUBLETAP || | |
290 | features->device_type == BTN_TOOL_TRIPLETAP) { | |
291 | input_set_abs_params(input_dev, ABS_RX, 0, features->x_phy, 0, 0); | |
292 | input_set_abs_params(input_dev, ABS_RY, 0, features->y_phy, 0, 0); | |
293 | __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); | |
ec67bbed PC |
294 | } |
295 | } | |
296 | ||
297 | void input_dev_tpc2fg(struct input_dev *input_dev, struct wacom_wac *wacom_wac) | |
298 | { | |
e33da8a5 | 299 | if (wacom_wac->features.device_type == BTN_TOOL_TRIPLETAP) { |
ec67bbed PC |
300 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_TRIPLETAP); |
301 | input_dev->evbit[0] |= BIT_MASK(EV_MSC); | |
302 | input_dev->mscbit[0] |= BIT_MASK(MSC_SERIAL); | |
303 | } | |
304 | } | |
305 | ||
545f4e99 | 306 | static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc, |
ec67bbed | 307 | struct wacom_features *features) |
545f4e99 PC |
308 | { |
309 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
310 | char limit = 0; |
311 | /* result has to be defined as int for some devices */ | |
312 | int result = 0; | |
545f4e99 PC |
313 | int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0; |
314 | unsigned char *report; | |
315 | ||
316 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
317 | if (!report) | |
318 | return -ENOMEM; | |
319 | ||
320 | /* retrive report descriptors */ | |
321 | do { | |
322 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
323 | USB_REQ_GET_DESCRIPTOR, | |
324 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
325 | HID_DEVICET_REPORT << 8, | |
326 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
327 | report, | |
328 | hid_desc->wDescriptorLength, | |
329 | 5000); /* 5 secs */ | |
330 | } while (result < 0 && limit++ < 5); | |
331 | ||
384318ec | 332 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
333 | if (result < 0) |
334 | goto out; | |
335 | ||
336 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
337 | ||
338 | switch (report[i]) { | |
339 | case HID_USAGE_PAGE: | |
340 | switch (report[i + 1]) { | |
341 | case HID_USAGE_PAGE_DIGITIZER: | |
342 | usage = WCM_DIGITIZER; | |
343 | i++; | |
344 | break; | |
345 | ||
346 | case HID_USAGE_PAGE_DESKTOP: | |
347 | usage = WCM_DESKTOP; | |
348 | i++; | |
349 | break; | |
350 | } | |
351 | break; | |
352 | ||
353 | case HID_USAGE: | |
354 | switch (report[i + 1]) { | |
355 | case HID_USAGE_X: | |
356 | if (usage == WCM_DESKTOP) { | |
357 | if (finger) { | |
ec67bbed PC |
358 | features->device_type = BTN_TOOL_DOUBLETAP; |
359 | if (features->type == TABLETPC2FG) { | |
360 | /* need to reset back */ | |
361 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
362 | features->device_type = BTN_TOOL_TRIPLETAP; | |
363 | } | |
545f4e99 | 364 | features->x_max = |
ec67bbed PC |
365 | wacom_le16_to_cpu(&report[i + 3]); |
366 | features->x_phy = | |
545f4e99 | 367 | wacom_le16_to_cpu(&report[i + 6]); |
ec67bbed PC |
368 | features->unit = report[i + 9]; |
369 | features->unitExpo = report[i + 11]; | |
370 | i += 12; | |
545f4e99 | 371 | } else if (pen) { |
ec67bbed PC |
372 | /* penabled only accepts exact bytes of data */ |
373 | if (features->type == TABLETPC2FG) | |
57e413d9 | 374 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed | 375 | features->device_type = BTN_TOOL_PEN; |
545f4e99 PC |
376 | features->x_max = |
377 | wacom_le16_to_cpu(&report[i + 3]); | |
378 | i += 4; | |
379 | } | |
380 | } else if (usage == WCM_DIGITIZER) { | |
381 | /* max pressure isn't reported | |
382 | features->pressure_max = (unsigned short) | |
383 | (report[i+4] << 8 | report[i + 3]); | |
384 | */ | |
385 | features->pressure_max = 255; | |
386 | i += 4; | |
387 | } | |
388 | break; | |
389 | ||
390 | case HID_USAGE_Y: | |
ec67bbed PC |
391 | if (usage == WCM_DESKTOP) { |
392 | if (finger) { | |
393 | features->device_type = BTN_TOOL_DOUBLETAP; | |
394 | if (features->type == TABLETPC2FG) { | |
395 | /* need to reset back */ | |
396 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
397 | features->device_type = BTN_TOOL_TRIPLETAP; | |
398 | features->y_max = | |
399 | wacom_le16_to_cpu(&report[i + 3]); | |
400 | features->y_phy = | |
401 | wacom_le16_to_cpu(&report[i + 6]); | |
402 | i += 7; | |
403 | } else { | |
404 | features->y_max = | |
405 | features->x_max; | |
406 | features->y_phy = | |
407 | wacom_le16_to_cpu(&report[i + 3]); | |
408 | i += 4; | |
409 | } | |
410 | } else if (pen) { | |
411 | /* penabled only accepts exact bytes of data */ | |
412 | if (features->type == TABLETPC2FG) | |
57e413d9 | 413 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; |
ec67bbed PC |
414 | features->device_type = BTN_TOOL_PEN; |
415 | features->y_max = | |
416 | wacom_le16_to_cpu(&report[i + 3]); | |
417 | i += 4; | |
418 | } | |
419 | } | |
545f4e99 PC |
420 | break; |
421 | ||
422 | case HID_USAGE_FINGER: | |
423 | finger = 1; | |
424 | i++; | |
425 | break; | |
426 | ||
427 | case HID_USAGE_STYLUS: | |
428 | pen = 1; | |
429 | i++; | |
430 | break; | |
431 | ||
432 | case HID_USAGE_UNDEFINED: | |
433 | if (usage == WCM_DESKTOP && finger) /* capacity */ | |
434 | features->pressure_max = | |
435 | wacom_le16_to_cpu(&report[i + 3]); | |
436 | i += 4; | |
437 | break; | |
438 | } | |
439 | break; | |
440 | ||
441 | case HID_COLLECTION: | |
ec67bbed | 442 | /* reset UsagePage and Finger */ |
545f4e99 PC |
443 | finger = usage = 0; |
444 | break; | |
445 | } | |
446 | } | |
447 | ||
545f4e99 | 448 | out: |
384318ec | 449 | result = 0; |
545f4e99 PC |
450 | kfree(report); |
451 | return result; | |
452 | } | |
453 | ||
ec67bbed | 454 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) |
3b7307c2 DT |
455 | { |
456 | unsigned char *rep_data; | |
ec67bbed PC |
457 | int limit = 0, report_id = 2; |
458 | int error = -ENOMEM; | |
3b7307c2 DT |
459 | |
460 | rep_data = kmalloc(2, GFP_KERNEL); | |
461 | if (!rep_data) | |
ec67bbed PC |
462 | return error; |
463 | ||
464 | /* ask to report tablet data if it is 2FGT or not a Tablet PC */ | |
465 | if (features->device_type == BTN_TOOL_TRIPLETAP) { | |
466 | do { | |
467 | rep_data[0] = 3; | |
468 | rep_data[1] = 4; | |
469 | report_id = 3; | |
470 | error = usb_set_report(intf, WAC_HID_FEATURE_REPORT, | |
471 | report_id, rep_data, 2); | |
472 | if (error >= 0) | |
473 | error = usb_get_report(intf, | |
474 | WAC_HID_FEATURE_REPORT, report_id, | |
475 | rep_data, 3); | |
476 | } while ((error < 0 || rep_data[1] != 4) && limit++ < 5); | |
477 | } else if (features->type != TABLETPC && features->type != TABLETPC2FG) { | |
478 | do { | |
479 | rep_data[0] = 2; | |
480 | rep_data[1] = 2; | |
481 | error = usb_set_report(intf, WAC_HID_FEATURE_REPORT, | |
482 | report_id, rep_data, 2); | |
483 | if (error >= 0) | |
484 | error = usb_get_report(intf, | |
485 | WAC_HID_FEATURE_REPORT, report_id, | |
486 | rep_data, 2); | |
487 | } while ((error < 0 || rep_data[1] != 2) && limit++ < 5); | |
488 | } | |
3b7307c2 DT |
489 | |
490 | kfree(rep_data); | |
491 | ||
492 | return error < 0 ? error : 0; | |
493 | } | |
494 | ||
ec67bbed PC |
495 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
496 | struct wacom_features *features) | |
497 | { | |
498 | int error = 0; | |
499 | struct usb_host_interface *interface = intf->cur_altsetting; | |
500 | struct hid_descriptor *hid_desc; | |
501 | ||
502 | /* default device to penabled */ | |
503 | features->device_type = BTN_TOOL_PEN; | |
504 | ||
505 | /* only Tablet PCs need to retrieve the info */ | |
506 | if ((features->type != TABLETPC) && (features->type != TABLETPC2FG)) | |
507 | goto out; | |
508 | ||
509 | if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) { | |
510 | if (usb_get_extra_descriptor(&interface->endpoint[0], | |
511 | HID_DEVICET_REPORT, &hid_desc)) { | |
512 | printk("wacom: can not retrieve extra class descriptor\n"); | |
513 | error = 1; | |
514 | goto out; | |
515 | } | |
516 | } | |
517 | error = wacom_parse_hid(intf, hid_desc, features); | |
518 | if (error) | |
519 | goto out; | |
520 | ||
521 | /* touch device found but size is not defined. use default */ | |
522 | if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) { | |
523 | features->x_max = 1023; | |
524 | features->y_max = 1023; | |
525 | } | |
526 | ||
527 | out: | |
528 | return error; | |
529 | } | |
530 | ||
3bea733a PC |
531 | static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) |
532 | { | |
533 | struct usb_device *dev = interface_to_usbdev(intf); | |
534 | struct usb_endpoint_descriptor *endpoint; | |
535 | struct wacom *wacom; | |
536 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 537 | struct wacom_features *features; |
3bea733a | 538 | struct input_dev *input_dev; |
e33da8a5 | 539 | int error; |
3bea733a | 540 | |
e33da8a5 | 541 | if (!id->driver_info) |
b036f6fb BB |
542 | return -EINVAL; |
543 | ||
3bea733a PC |
544 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
545 | wacom_wac = kzalloc(sizeof(struct wacom_wac), GFP_KERNEL); | |
546 | input_dev = input_allocate_device(); | |
e33da8a5 JC |
547 | if (!wacom || !input_dev || !wacom_wac) { |
548 | error = -ENOMEM; | |
549 | goto fail1; | |
550 | } | |
551 | ||
552 | wacom_wac->features = *((struct wacom_features *)id->driver_info); | |
553 | features = &wacom_wac->features; | |
554 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
555 | error = -EINVAL; | |
3bea733a | 556 | goto fail1; |
e33da8a5 | 557 | } |
3bea733a | 558 | |
e33da8a5 JC |
559 | wacom_wac->data = usb_buffer_alloc(dev, WACOM_PKGLEN_MAX, |
560 | GFP_KERNEL, &wacom->data_dma); | |
561 | if (!wacom_wac->data) { | |
562 | error = -ENOMEM; | |
3bea733a | 563 | goto fail1; |
e33da8a5 | 564 | } |
3bea733a PC |
565 | |
566 | wacom->irq = usb_alloc_urb(0, GFP_KERNEL); | |
e33da8a5 JC |
567 | if (!wacom->irq) { |
568 | error = -ENOMEM; | |
3bea733a | 569 | goto fail2; |
e33da8a5 | 570 | } |
3bea733a PC |
571 | |
572 | wacom->usbdev = dev; | |
573 | wacom->dev = input_dev; | |
e7224094 ON |
574 | wacom->intf = intf; |
575 | mutex_init(&wacom->lock); | |
3bea733a PC |
576 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
577 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
578 | ||
3bea733a PC |
579 | usb_to_input_id(dev, &input_dev->id); |
580 | ||
c0f82d57 | 581 | input_dev->dev.parent = &intf->dev; |
7791bdae DT |
582 | |
583 | input_set_drvdata(input_dev, wacom); | |
584 | ||
3bea733a PC |
585 | input_dev->open = wacom_open; |
586 | input_dev->close = wacom_close; | |
587 | ||
545f4e99 PC |
588 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
589 | ||
ec67bbed PC |
590 | /* Retrieve the physical and logical size for OEM devices */ |
591 | error = wacom_retrieve_hid_descriptor(intf, features); | |
592 | if (error) | |
593 | goto fail2; | |
545f4e99 | 594 | |
49b764ae PC |
595 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
596 | ||
597 | if (features->type == TABLETPC || features->type == TABLETPC2FG) { | |
598 | /* Append the device type to the name */ | |
599 | strlcat(wacom_wac->name, | |
600 | features->device_type == BTN_TOOL_PEN ? | |
601 | " Pen" : " Finger", | |
602 | sizeof(wacom_wac->name)); | |
603 | } | |
604 | ||
605 | input_dev->name = wacom_wac->name; | |
e33da8a5 JC |
606 | wacom->wacom_wac = wacom_wac; |
607 | ||
7b19ada2 | 608 | input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
ec67bbed PC |
609 | input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOUCH); |
610 | ||
545f4e99 PC |
611 | input_set_abs_params(input_dev, ABS_X, 0, features->x_max, 4, 0); |
612 | input_set_abs_params(input_dev, ABS_Y, 0, features->y_max, 4, 0); | |
613 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max, 0, 0); | |
7b19ada2 | 614 | input_dev->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC); |
3bea733a PC |
615 | |
616 | wacom_init_input_dev(input_dev, wacom_wac); | |
617 | ||
3bea733a PC |
618 | usb_fill_int_urb(wacom->irq, dev, |
619 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
ec67bbed | 620 | wacom_wac->data, features->pktlen, |
8d32e3ae | 621 | wacom_sys_irq, wacom, endpoint->bInterval); |
3bea733a PC |
622 | wacom->irq->transfer_dma = wacom->data_dma; |
623 | wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
624 | ||
5014186d DT |
625 | error = input_register_device(wacom->dev); |
626 | if (error) | |
627 | goto fail3; | |
3bea733a | 628 | |
ec67bbed PC |
629 | /* Note that if query fails it is not a hard failure */ |
630 | wacom_query_tablet_data(intf, features); | |
3bea733a PC |
631 | |
632 | usb_set_intfdata(intf, wacom); | |
633 | return 0; | |
634 | ||
5014186d | 635 | fail3: usb_free_urb(wacom->irq); |
ec67bbed | 636 | fail2: usb_buffer_free(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma); |
5014186d | 637 | fail1: input_free_device(input_dev); |
3bea733a PC |
638 | kfree(wacom); |
639 | kfree(wacom_wac); | |
5014186d | 640 | return error; |
3bea733a PC |
641 | } |
642 | ||
643 | static void wacom_disconnect(struct usb_interface *intf) | |
644 | { | |
e7224094 | 645 | struct wacom *wacom = usb_get_intfdata(intf); |
3bea733a PC |
646 | |
647 | usb_set_intfdata(intf, NULL); | |
e7224094 ON |
648 | |
649 | usb_kill_urb(wacom->irq); | |
650 | input_unregister_device(wacom->dev); | |
651 | usb_free_urb(wacom->irq); | |
ec67bbed | 652 | usb_buffer_free(interface_to_usbdev(intf), WACOM_PKGLEN_MAX, |
545f4e99 | 653 | wacom->wacom_wac->data, wacom->data_dma); |
e7224094 ON |
654 | kfree(wacom->wacom_wac); |
655 | kfree(wacom); | |
656 | } | |
657 | ||
658 | static int wacom_suspend(struct usb_interface *intf, pm_message_t message) | |
659 | { | |
660 | struct wacom *wacom = usb_get_intfdata(intf); | |
661 | ||
662 | mutex_lock(&wacom->lock); | |
663 | usb_kill_urb(wacom->irq); | |
664 | mutex_unlock(&wacom->lock); | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | static int wacom_resume(struct usb_interface *intf) | |
670 | { | |
671 | struct wacom *wacom = usb_get_intfdata(intf); | |
e33da8a5 | 672 | struct wacom_features *features = &wacom->wacom_wac->features; |
e7224094 ON |
673 | int rv; |
674 | ||
675 | mutex_lock(&wacom->lock); | |
232f5693 | 676 | if (wacom->open) { |
e7224094 | 677 | rv = usb_submit_urb(wacom->irq, GFP_NOIO); |
ec67bbed PC |
678 | /* switch to wacom mode if needed */ |
679 | if (!wacom_retrieve_hid_descriptor(intf, features)) | |
680 | wacom_query_tablet_data(intf, features); | |
232f5693 | 681 | } else |
e7224094 ON |
682 | rv = 0; |
683 | mutex_unlock(&wacom->lock); | |
684 | ||
685 | return rv; | |
686 | } | |
687 | ||
688 | static int wacom_reset_resume(struct usb_interface *intf) | |
689 | { | |
690 | return wacom_resume(intf); | |
3bea733a PC |
691 | } |
692 | ||
693 | static struct usb_driver wacom_driver = { | |
694 | .name = "wacom", | |
b036f6fb | 695 | .id_table = wacom_ids, |
3bea733a PC |
696 | .probe = wacom_probe, |
697 | .disconnect = wacom_disconnect, | |
e7224094 ON |
698 | .suspend = wacom_suspend, |
699 | .resume = wacom_resume, | |
700 | .reset_resume = wacom_reset_resume, | |
701 | .supports_autosuspend = 1, | |
3bea733a PC |
702 | }; |
703 | ||
704 | static int __init wacom_init(void) | |
705 | { | |
706 | int result; | |
b036f6fb | 707 | |
3bea733a PC |
708 | result = usb_register(&wacom_driver); |
709 | if (result == 0) | |
899ef6e7 GKH |
710 | printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" |
711 | DRIVER_DESC "\n"); | |
3bea733a PC |
712 | return result; |
713 | } | |
714 | ||
715 | static void __exit wacom_exit(void) | |
716 | { | |
717 | usb_deregister(&wacom_driver); | |
718 | } | |
719 | ||
720 | module_init(wacom_init); | |
721 | module_exit(wacom_exit); |