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Ping Cheng3bea7332006-07-13 18:01:36 -07001/*
Dmitry Torokhov4104d132007-05-07 16:16:29 -04002 * drivers/input/tablet/wacom_sys.c
Ping Cheng3bea7332006-07-13 18:01:36 -07003 *
Ping Cheng232f5692009-12-15 00:35:24 -08004 * USB Wacom tablet support - system specific code
Ping Cheng3bea7332006-07-13 18:01:36 -07005 */
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
Ping Cheng3bea7332006-07-13 18:01:36 -070014#include "wacom_wac.h"
Dmitry Torokhov51269fe2010-03-19 22:18:15 -070015#include "wacom.h"
Jason Gereckeb58ba1b2014-12-05 13:37:32 -080016#include <linux/input/mt.h>
Ping Cheng3bea7332006-07-13 18:01:36 -070017
Ping Chenga417ea42011-08-16 00:17:56 -070018#define WAC_MSG_RETRIES 5
Ping Cheng3bea7332006-07-13 18:01:36 -070019
Ping Cheng912ca212014-09-10 12:41:31 -070020#define WAC_CMD_WL_LED_CONTROL 0x03
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070021#define WAC_CMD_LED_CONTROL 0x20
22#define WAC_CMD_ICON_START 0x21
23#define WAC_CMD_ICON_XFER 0x23
Benjamin Tissoires849e2f02014-08-06 13:58:25 -070024#define WAC_CMD_ICON_BT_XFER 0x26
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070025#define WAC_CMD_RETRIES 10
26
Ping Chenge0984bc2014-09-10 12:40:05 -070027#define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP)
28#define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP)
29
Ping Chengc64d8832014-09-10 12:41:04 -070030static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf,
31 size_t size, unsigned int retries)
Ping Cheng3bea7332006-07-13 18:01:36 -070032{
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070033 int retval;
34
35 do {
Ping Chengc64d8832014-09-10 12:41:04 -070036 retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
Benjamin Tissoires27b20a92014-07-24 12:56:22 -070037 HID_REQ_GET_REPORT);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070038 } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
39
40 return retval;
Ping Cheng3bea7332006-07-13 18:01:36 -070041}
42
Przemo Firszt296b7372014-08-06 14:00:38 -070043static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf,
44 size_t size, unsigned int retries)
Ping Cheng3bea7332006-07-13 18:01:36 -070045{
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070046 int retval;
47
48 do {
Przemo Firszt296b7372014-08-06 14:00:38 -070049 retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
Benjamin Tissoires27b20a92014-07-24 12:56:22 -070050 HID_REQ_SET_REPORT);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -070051 } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
52
53 return retval;
Ping Cheng3bea7332006-07-13 18:01:36 -070054}
55
Benjamin Tissoires29b47392014-07-24 12:52:23 -070056static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
57 u8 *raw_data, int size)
Ping Cheng3bea7332006-07-13 18:01:36 -070058{
Benjamin Tissoires29b47392014-07-24 12:52:23 -070059 struct wacom *wacom = hid_get_drvdata(hdev);
Ping Cheng3bea7332006-07-13 18:01:36 -070060
Benjamin Tissoires29b47392014-07-24 12:52:23 -070061 if (size > WACOM_PKGLEN_MAX)
62 return 1;
Ping Cheng3bea7332006-07-13 18:01:36 -070063
Benjamin Tissoires29b47392014-07-24 12:52:23 -070064 memcpy(wacom->wacom_wac.data, raw_data, size);
Ping Cheng3bea7332006-07-13 18:01:36 -070065
Benjamin Tissoires29b47392014-07-24 12:52:23 -070066 wacom_wac_irq(&wacom->wacom_wac, size);
67
68 return 0;
Ping Cheng3bea7332006-07-13 18:01:36 -070069}
70
Ping Cheng3bea7332006-07-13 18:01:36 -070071static int wacom_open(struct input_dev *dev)
72{
Dmitry Torokhov7791bda2007-04-12 01:34:39 -040073 struct wacom *wacom = input_get_drvdata(dev);
Ping Cheng3bea7332006-07-13 18:01:36 -070074
Benjamin Tissoiresdff67412014-12-01 11:52:40 -050075 return hid_hw_open(wacom->hdev);
Ping Cheng3bea7332006-07-13 18:01:36 -070076}
77
78static void wacom_close(struct input_dev *dev)
79{
Dmitry Torokhov7791bda2007-04-12 01:34:39 -040080 struct wacom *wacom = input_get_drvdata(dev);
Ping Cheng3bea7332006-07-13 18:01:36 -070081
Benjamin Tissoires29b47392014-07-24 12:52:23 -070082 hid_hw_close(wacom->hdev);
Ping Cheng3bea7332006-07-13 18:01:36 -070083}
84
Chris Bagwell16bf2882012-03-25 23:26:20 -070085/*
Benjamin Tissoires198fdee2014-07-24 13:03:05 -070086 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
Jason Gerecke115d5e12012-10-03 17:24:32 -070087 */
88static int wacom_calc_hid_res(int logical_extents, int physical_extents,
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -070089 unsigned unit, int exponent)
Jason Gerecke115d5e12012-10-03 17:24:32 -070090{
Benjamin Tissoires198fdee2014-07-24 13:03:05 -070091 struct hid_field field = {
92 .logical_maximum = logical_extents,
93 .physical_maximum = physical_extents,
94 .unit = unit,
95 .unit_exponent = exponent,
96 };
Jason Gerecke115d5e12012-10-03 17:24:32 -070097
Benjamin Tissoires198fdee2014-07-24 13:03:05 -070098 return hidinput_calc_abs_res(&field, ABS_X);
Jason Gerecke115d5e12012-10-03 17:24:32 -070099}
100
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700101static void wacom_feature_mapping(struct hid_device *hdev,
102 struct hid_field *field, struct hid_usage *usage)
Chris Bagwell41343612011-10-26 22:32:52 -0700103{
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700104 struct wacom *wacom = hid_get_drvdata(hdev);
105 struct wacom_features *features = &wacom->wacom_wac.features;
Benjamin Tissoires5ae6e892014-09-23 12:08:09 -0400106 struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
Benjamin Tissoires8ffffd52014-09-16 16:56:39 -0400107 u8 *data;
108 int ret;
Chris Bagwell41343612011-10-26 22:32:52 -0700109
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700110 switch (usage->hid) {
111 case HID_DG_CONTACTMAX:
112 /* leave touch_max as is if predefined */
Benjamin Tissoires8ffffd52014-09-16 16:56:39 -0400113 if (!features->touch_max) {
114 /* read manually */
115 data = kzalloc(2, GFP_KERNEL);
116 if (!data)
117 break;
118 data[0] = field->report->id;
119 ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
120 data, 2, 0);
121 if (ret == 2)
122 features->touch_max = data[1];
123 kfree(data);
124 }
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700125 break;
Benjamin Tissoires5ae6e892014-09-23 12:08:09 -0400126 case HID_DG_INPUTMODE:
127 /* Ignore if value index is out of bounds. */
128 if (usage->usage_index >= field->report_count) {
129 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
130 break;
131 }
132
133 hid_data->inputmode = field->report->id;
134 hid_data->inputmode_index = usage->usage_index;
135 break;
Ping Chengf393ee22012-04-29 21:09:17 -0700136 }
137}
138
Chris Bagwell428f8582011-10-26 22:26:59 -0700139/*
140 * Interface Descriptor of wacom devices can be incomplete and
141 * inconsistent so wacom_features table is used to store stylus
142 * device's packet lengths, various maximum values, and tablet
143 * resolution based on product ID's.
144 *
145 * For devices that contain 2 interfaces, wacom_features table is
146 * inaccurate for the touch interface. Since the Interface Descriptor
147 * for touch interfaces has pretty complete data, this function exists
148 * to query tablet for this missing information instead of hard coding in
149 * an additional table.
150 *
151 * A typical Interface Descriptor for a stylus will contain a
152 * boot mouse application collection that is not of interest and this
153 * function will ignore it.
154 *
155 * It also contains a digitizer application collection that also is not
156 * of interest since any information it contains would be duplicate
157 * of what is in wacom_features. Usually it defines a report of an array
158 * of bytes that could be used as max length of the stylus packet returned.
159 * If it happens to define a Digitizer-Stylus Physical Collection then
160 * the X and Y logical values contain valid data but it is ignored.
161 *
162 * A typical Interface Descriptor for a touch interface will contain a
163 * Digitizer-Finger Physical Collection which will define both logical
164 * X/Y maximum as well as the physical size of tablet. Since touch
165 * interfaces haven't supported pressure or distance, this is enough
166 * information to override invalid values in the wacom_features table.
Chris Bagwell41343612011-10-26 22:32:52 -0700167 *
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700168 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
169 * data. We deal with them after returning from this function.
Chris Bagwell428f8582011-10-26 22:26:59 -0700170 */
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700171static void wacom_usage_mapping(struct hid_device *hdev,
172 struct hid_field *field, struct hid_usage *usage)
173{
174 struct wacom *wacom = hid_get_drvdata(hdev);
175 struct wacom_features *features = &wacom->wacom_wac.features;
176 bool finger = (field->logical == HID_DG_FINGER) ||
177 (field->physical == HID_DG_FINGER);
178 bool pen = (field->logical == HID_DG_STYLUS) ||
179 (field->physical == HID_DG_STYLUS);
180
181 /*
182 * Requiring Stylus Usage will ignore boot mouse
183 * X/Y values and some cases of invalid Digitizer X/Y
184 * values commonly reported.
185 */
186 if (!pen && !finger)
187 return;
188
Ping Cheng30ebc1a2014-11-18 13:29:16 -0800189 /*
190 * Bamboo models do not support HID_DG_CONTACTMAX.
191 * And, Bamboo Pen only descriptor contains touch.
192 */
193 if (features->type != BAMBOO_PT) {
194 /* ISDv4 touch devices at least supports one touch point */
195 if (finger && !features->touch_max)
196 features->touch_max = 1;
197 }
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700198
199 switch (usage->hid) {
200 case HID_GD_X:
201 features->x_max = field->logical_maximum;
202 if (finger) {
203 features->device_type = BTN_TOOL_FINGER;
204 features->x_phy = field->physical_maximum;
205 if (features->type != BAMBOO_PT) {
206 features->unit = field->unit;
207 features->unitExpo = field->unit_exponent;
208 }
209 } else {
210 features->device_type = BTN_TOOL_PEN;
211 }
212 break;
213 case HID_GD_Y:
214 features->y_max = field->logical_maximum;
215 if (finger) {
216 features->y_phy = field->physical_maximum;
217 if (features->type != BAMBOO_PT) {
218 features->unit = field->unit;
219 features->unitExpo = field->unit_exponent;
220 }
221 }
222 break;
223 case HID_DG_TIPPRESSURE:
224 if (pen)
225 features->pressure_max = field->logical_maximum;
226 break;
227 }
Benjamin Tissoires7704ac92014-09-23 12:08:08 -0400228
229 if (features->type == HID_GENERIC)
230 wacom_wac_usage_mapping(hdev, field, usage);
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700231}
232
Jason Gereckeb58ba1b2014-12-05 13:37:32 -0800233static void wacom_post_parse_hid(struct hid_device *hdev,
234 struct wacom_features *features)
235{
236 struct wacom *wacom = hid_get_drvdata(hdev);
237 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
238
239 if (features->type == HID_GENERIC) {
240 /* Any last-minute generic device setup */
241 if (features->touch_max > 1) {
242 input_mt_init_slots(wacom_wac->input, wacom_wac->features.touch_max,
243 INPUT_MT_DIRECT);
244 }
245 }
246}
247
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700248static void wacom_parse_hid(struct hid_device *hdev,
Ping Chengec67bbe2009-12-15 00:35:24 -0800249 struct wacom_features *features)
Ping Cheng545f4e92008-11-24 11:44:27 -0500250{
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700251 struct hid_report_enum *rep_enum;
252 struct hid_report *hreport;
253 int i, j;
Ping Cheng545f4e92008-11-24 11:44:27 -0500254
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700255 /* check features first */
256 rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
257 list_for_each_entry(hreport, &rep_enum->report_list, list) {
258 for (i = 0; i < hreport->maxfield; i++) {
259 /* Ignore if report count is out of bounds. */
260 if (hreport->field[i]->report_count < 1)
261 continue;
Ping Cheng545f4e92008-11-24 11:44:27 -0500262
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700263 for (j = 0; j < hreport->field[i]->maxusage; j++) {
264 wacom_feature_mapping(hdev, hreport->field[i],
265 hreport->field[i]->usage + j);
Ping Cheng545f4e92008-11-24 11:44:27 -0500266 }
Ping Cheng545f4e92008-11-24 11:44:27 -0500267 }
268 }
269
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700270 /* now check the input usages */
271 rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
272 list_for_each_entry(hreport, &rep_enum->report_list, list) {
273
274 if (!hreport->maxfield)
275 continue;
276
277 for (i = 0; i < hreport->maxfield; i++)
278 for (j = 0; j < hreport->field[i]->maxusage; j++)
279 wacom_usage_mapping(hdev, hreport->field[i],
280 hreport->field[i]->usage + j);
281 }
Jason Gereckeb58ba1b2014-12-05 13:37:32 -0800282
283 wacom_post_parse_hid(hdev, features);
Ping Cheng545f4e92008-11-24 11:44:27 -0500284}
285
Benjamin Tissoires5ae6e892014-09-23 12:08:09 -0400286static int wacom_hid_set_device_mode(struct hid_device *hdev)
287{
288 struct wacom *wacom = hid_get_drvdata(hdev);
289 struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
290 struct hid_report *r;
291 struct hid_report_enum *re;
292
293 if (hid_data->inputmode < 0)
294 return 0;
295
296 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
297 r = re->report_id_hash[hid_data->inputmode];
298 if (r) {
299 r->field[0]->value[hid_data->inputmode_index] = 2;
300 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
301 }
302 return 0;
303}
304
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700305static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
306 int length, int mode)
Dmitry Torokhov3b7307c2009-08-20 21:41:04 -0700307{
308 unsigned char *rep_data;
Jason Gereckefe494bc2012-10-03 17:25:35 -0700309 int error = -ENOMEM, limit = 0;
Dmitry Torokhov3b7307c2009-08-20 21:41:04 -0700310
Jason Gereckefe494bc2012-10-03 17:25:35 -0700311 rep_data = kzalloc(length, GFP_KERNEL);
Dmitry Torokhov3b7307c2009-08-20 21:41:04 -0700312 if (!rep_data)
Ping Chengec67bbe2009-12-15 00:35:24 -0800313 return error;
Dmitry Torokhov3b7307c2009-08-20 21:41:04 -0700314
Jason Gereckefe494bc2012-10-03 17:25:35 -0700315 do {
Chris Bagwell9937c022013-01-23 19:37:34 -0800316 rep_data[0] = report_id;
317 rep_data[1] = mode;
318
Przemo Firszt296b7372014-08-06 14:00:38 -0700319 error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data,
320 length, 1);
Benjamin Tissoires3cb83152014-07-24 12:47:47 -0700321 if (error >= 0)
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700322 error = wacom_get_report(hdev, HID_FEATURE_REPORT,
Ping Chengc64d8832014-09-10 12:41:04 -0700323 rep_data, length, 1);
Jason Gereckefe494bc2012-10-03 17:25:35 -0700324 } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES);
Dmitry Torokhov3b7307c2009-08-20 21:41:04 -0700325
326 kfree(rep_data);
327
328 return error < 0 ? error : 0;
329}
330
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -0700331static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
332 struct wacom_features *features)
333{
Benjamin Tissoires387142b2014-08-06 13:52:56 -0700334 struct wacom *wacom = hid_get_drvdata(hdev);
335 int ret;
336 u8 rep_data[2];
337
338 switch (features->type) {
339 case GRAPHIRE_BT:
340 rep_data[0] = 0x03;
341 rep_data[1] = 0x00;
Przemo Firszt296b7372014-08-06 14:00:38 -0700342 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
343 3);
Benjamin Tissoires387142b2014-08-06 13:52:56 -0700344
345 if (ret >= 0) {
346 rep_data[0] = speed == 0 ? 0x05 : 0x06;
347 rep_data[1] = 0x00;
348
349 ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
Przemo Firszt296b7372014-08-06 14:00:38 -0700350 rep_data, 2, 3);
Benjamin Tissoires387142b2014-08-06 13:52:56 -0700351
352 if (ret >= 0) {
353 wacom->wacom_wac.bt_high_speed = speed;
354 return 0;
355 }
356 }
357
358 /*
359 * Note that if the raw queries fail, it's not a hard failure
360 * and it is safe to continue
361 */
362 hid_warn(hdev, "failed to poke device, command %d, err %d\n",
363 rep_data[0], ret);
364 break;
Benjamin Tissoires81af7e62014-08-06 13:55:56 -0700365 case INTUOS4WL:
366 if (speed == 1)
367 wacom->wacom_wac.bt_features &= ~0x20;
368 else
369 wacom->wacom_wac.bt_features |= 0x20;
370
371 rep_data[0] = 0x03;
372 rep_data[1] = wacom->wacom_wac.bt_features;
373
Przemo Firszt296b7372014-08-06 14:00:38 -0700374 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
375 1);
Benjamin Tissoires81af7e62014-08-06 13:55:56 -0700376 if (ret >= 0)
377 wacom->wacom_wac.bt_high_speed = speed;
378 break;
Benjamin Tissoires387142b2014-08-06 13:52:56 -0700379 }
380
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -0700381 return 0;
382}
383
Jason Gereckefe494bc2012-10-03 17:25:35 -0700384/*
385 * Switch the tablet into its most-capable mode. Wacom tablets are
386 * typically configured to power-up in a mode which sends mouse-like
387 * reports to the OS. To get absolute position, pressure data, etc.
388 * from the tablet, it is necessary to switch the tablet out of this
389 * mode and into one which sends the full range of tablet data.
390 */
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700391static int wacom_query_tablet_data(struct hid_device *hdev,
392 struct wacom_features *features)
Jason Gereckefe494bc2012-10-03 17:25:35 -0700393{
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -0700394 if (hdev->bus == BUS_BLUETOOTH)
395 return wacom_bt_query_tablet_data(hdev, 1, features);
396
Benjamin Tissoires5ae6e892014-09-23 12:08:09 -0400397 if (features->type == HID_GENERIC)
398 return wacom_hid_set_device_mode(hdev);
399
Jason Gereckefe494bc2012-10-03 17:25:35 -0700400 if (features->device_type == BTN_TOOL_FINGER) {
401 if (features->type > TABLETPC) {
402 /* MT Tablet PC touch */
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700403 return wacom_set_device_mode(hdev, 3, 4, 4);
Jason Gereckefe494bc2012-10-03 17:25:35 -0700404 }
Jason Gerecke36d3c512013-09-20 09:47:35 -0700405 else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) {
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700406 return wacom_set_device_mode(hdev, 18, 3, 2);
Jason Gereckeb1e42792012-10-21 00:38:04 -0700407 }
Jason Gereckefe494bc2012-10-03 17:25:35 -0700408 } else if (features->device_type == BTN_TOOL_PEN) {
409 if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700410 return wacom_set_device_mode(hdev, 2, 2, 2);
Jason Gereckefe494bc2012-10-03 17:25:35 -0700411 }
412 }
413
414 return 0;
415}
416
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700417static void wacom_retrieve_hid_descriptor(struct hid_device *hdev,
Ping Cheng19635182012-04-29 21:09:18 -0700418 struct wacom_features *features)
Ping Chengec67bbe2009-12-15 00:35:24 -0800419{
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700420 struct wacom *wacom = hid_get_drvdata(hdev);
421 struct usb_interface *intf = wacom->intf;
Ping Chengec67bbe2009-12-15 00:35:24 -0800422
Henrik Rydbergfed87e62010-09-05 12:25:11 -0700423 /* default features */
Ping Chengec67bbe2009-12-15 00:35:24 -0800424 features->device_type = BTN_TOOL_PEN;
Henrik Rydbergfed87e62010-09-05 12:25:11 -0700425 features->x_fuzz = 4;
426 features->y_fuzz = 4;
427 features->pressure_fuzz = 0;
428 features->distance_fuzz = 0;
Ping Chengec67bbe2009-12-15 00:35:24 -0800429
Chris Bagwelld3825d52012-03-25 23:26:11 -0700430 /*
431 * The wireless device HID is basic and layout conflicts with
432 * other tablets (monitor and touch interface can look like pen).
433 * Skip the query for this type and modify defaults based on
434 * interface number.
435 */
436 if (features->type == WIRELESS) {
437 if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
438 features->device_type = 0;
439 } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) {
Ping Chengadad0042012-06-28 16:48:17 -0700440 features->device_type = BTN_TOOL_FINGER;
Chris Bagwelld3825d52012-03-25 23:26:11 -0700441 features->pktlen = WACOM_PKGLEN_BBTOUCH3;
442 }
443 }
444
Ping Cheng19635182012-04-29 21:09:18 -0700445 /* only devices that support touch need to retrieve the info */
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700446 if (features->type < BAMBOO_PT)
447 return;
Ping Chengec67bbe2009-12-15 00:35:24 -0800448
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -0700449 wacom_parse_hid(hdev, features);
Ping Chengec67bbe2009-12-15 00:35:24 -0800450}
451
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700452struct wacom_hdev_data {
Ping Cheng4492eff2010-03-19 22:18:15 -0700453 struct list_head list;
454 struct kref kref;
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700455 struct hid_device *dev;
Ping Cheng4492eff2010-03-19 22:18:15 -0700456 struct wacom_shared shared;
457};
458
459static LIST_HEAD(wacom_udev_list);
460static DEFINE_MUTEX(wacom_udev_list_lock);
461
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700462static bool wacom_are_sibling(struct hid_device *hdev,
463 struct hid_device *sibling)
Jason Gereckeaea2bf62012-10-21 00:38:03 -0700464{
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700465 struct wacom *wacom = hid_get_drvdata(hdev);
466 struct wacom_features *features = &wacom->wacom_wac.features;
467 int vid = features->oVid;
468 int pid = features->oPid;
469 int n1,n2;
Jason Gereckeaea2bf62012-10-21 00:38:03 -0700470
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700471 if (vid == 0 && pid == 0) {
472 vid = hdev->vendor;
473 pid = hdev->product;
Jason Gereckeaea2bf62012-10-21 00:38:03 -0700474 }
475
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700476 if (vid != sibling->vendor || pid != sibling->product)
477 return false;
478
479 /* Compare the physical path. */
480 n1 = strrchr(hdev->phys, '.') - hdev->phys;
481 n2 = strrchr(sibling->phys, '.') - sibling->phys;
482 if (n1 != n2 || n1 <= 0 || n2 <= 0)
483 return false;
484
485 return !strncmp(hdev->phys, sibling->phys, n1);
Jason Gereckeaea2bf62012-10-21 00:38:03 -0700486}
487
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700488static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev)
Ping Cheng4492eff2010-03-19 22:18:15 -0700489{
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700490 struct wacom_hdev_data *data;
Ping Cheng4492eff2010-03-19 22:18:15 -0700491
492 list_for_each_entry(data, &wacom_udev_list, list) {
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700493 if (wacom_are_sibling(hdev, data->dev)) {
Ping Cheng4492eff2010-03-19 22:18:15 -0700494 kref_get(&data->kref);
495 return data;
496 }
497 }
498
499 return NULL;
500}
501
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700502static int wacom_add_shared_data(struct hid_device *hdev)
Ping Cheng4492eff2010-03-19 22:18:15 -0700503{
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700504 struct wacom *wacom = hid_get_drvdata(hdev);
505 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
506 struct wacom_hdev_data *data;
Ping Cheng4492eff2010-03-19 22:18:15 -0700507 int retval = 0;
508
509 mutex_lock(&wacom_udev_list_lock);
510
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700511 data = wacom_get_hdev_data(hdev);
Ping Cheng4492eff2010-03-19 22:18:15 -0700512 if (!data) {
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700513 data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL);
Ping Cheng4492eff2010-03-19 22:18:15 -0700514 if (!data) {
515 retval = -ENOMEM;
516 goto out;
517 }
518
519 kref_init(&data->kref);
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700520 data->dev = hdev;
Ping Cheng4492eff2010-03-19 22:18:15 -0700521 list_add_tail(&data->list, &wacom_udev_list);
522 }
523
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700524 wacom_wac->shared = &data->shared;
Ping Cheng4492eff2010-03-19 22:18:15 -0700525
526out:
527 mutex_unlock(&wacom_udev_list_lock);
528 return retval;
529}
530
531static void wacom_release_shared_data(struct kref *kref)
532{
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700533 struct wacom_hdev_data *data =
534 container_of(kref, struct wacom_hdev_data, kref);
Ping Cheng4492eff2010-03-19 22:18:15 -0700535
536 mutex_lock(&wacom_udev_list_lock);
537 list_del(&data->list);
538 mutex_unlock(&wacom_udev_list_lock);
539
540 kfree(data);
541}
542
543static void wacom_remove_shared_data(struct wacom_wac *wacom)
544{
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700545 struct wacom_hdev_data *data;
Ping Cheng4492eff2010-03-19 22:18:15 -0700546
547 if (wacom->shared) {
Benjamin Tissoires4451e082014-07-24 13:01:05 -0700548 data = container_of(wacom->shared, struct wacom_hdev_data, shared);
Ping Cheng4492eff2010-03-19 22:18:15 -0700549 kref_put(&data->kref, wacom_release_shared_data);
550 wacom->shared = NULL;
551 }
552}
553
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700554static int wacom_led_control(struct wacom *wacom)
555{
556 unsigned char *buf;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700557 int retval;
Ping Cheng912ca212014-09-10 12:41:31 -0700558 unsigned char report_id = WAC_CMD_LED_CONTROL;
559 int buf_size = 9;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700560
Ping Cheng912ca212014-09-10 12:41:31 -0700561 if (wacom->wacom_wac.pid) { /* wireless connected */
562 report_id = WAC_CMD_WL_LED_CONTROL;
563 buf_size = 13;
564 }
565 buf = kzalloc(buf_size, GFP_KERNEL);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700566 if (!buf)
567 return -ENOMEM;
568
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700569 if (wacom->wacom_wac.features.type >= INTUOS5S &&
Ping Cheng9a35c412013-09-20 09:51:56 -0700570 wacom->wacom_wac.features.type <= INTUOSPL) {
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700571 /*
572 * Touch Ring and crop mark LED luminance may take on
573 * one of four values:
574 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
575 */
576 int ring_led = wacom->led.select[0] & 0x03;
577 int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03;
578 int crop_lum = 0;
Ping Cheng912ca212014-09-10 12:41:31 -0700579 unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led);
Ping Cheng09e7d942011-10-04 23:51:14 -0700580
Ping Cheng912ca212014-09-10 12:41:31 -0700581 buf[0] = report_id;
582 if (wacom->wacom_wac.pid) {
583 wacom_get_report(wacom->hdev, HID_FEATURE_REPORT,
584 buf, buf_size, WAC_CMD_RETRIES);
585 buf[0] = report_id;
586 buf[4] = led_bits;
587 } else
588 buf[1] = led_bits;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700589 }
590 else {
591 int led = wacom->led.select[0] | 0x4;
Ping Cheng09e7d942011-10-04 23:51:14 -0700592
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700593 if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
594 wacom->wacom_wac.features.type == WACOM_24HD)
595 led |= (wacom->led.select[1] << 4) | 0x40;
596
Ping Cheng912ca212014-09-10 12:41:31 -0700597 buf[0] = report_id;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700598 buf[1] = led;
599 buf[2] = wacom->led.llv;
600 buf[3] = wacom->led.hlv;
601 buf[4] = wacom->led.img_lum;
602 }
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700603
Ping Cheng912ca212014-09-10 12:41:31 -0700604 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size,
Przemo Firszt296b7372014-08-06 14:00:38 -0700605 WAC_CMD_RETRIES);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700606 kfree(buf);
607
608 return retval;
609}
610
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700611static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
612 const unsigned len, const void *img)
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700613{
614 unsigned char *buf;
615 int i, retval;
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700616 const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700617
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700618 buf = kzalloc(chunk_len + 3 , GFP_KERNEL);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700619 if (!buf)
620 return -ENOMEM;
621
622 /* Send 'start' command */
623 buf[0] = WAC_CMD_ICON_START;
624 buf[1] = 1;
Przemo Firszt296b7372014-08-06 14:00:38 -0700625 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
626 WAC_CMD_RETRIES);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700627 if (retval < 0)
628 goto out;
629
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700630 buf[0] = xfer_id;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700631 buf[1] = button_id & 0x07;
632 for (i = 0; i < 4; i++) {
633 buf[2] = i;
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700634 memcpy(buf + 3, img + i * chunk_len, chunk_len);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700635
Benjamin Tissoires27b20a92014-07-24 12:56:22 -0700636 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
Przemo Firszt296b7372014-08-06 14:00:38 -0700637 buf, chunk_len + 3, WAC_CMD_RETRIES);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700638 if (retval < 0)
639 break;
640 }
641
642 /* Send 'stop' */
643 buf[0] = WAC_CMD_ICON_START;
644 buf[1] = 0;
Przemo Firszt296b7372014-08-06 14:00:38 -0700645 wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
646 WAC_CMD_RETRIES);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700647
648out:
649 kfree(buf);
650 return retval;
651}
652
Ping Cheng09e7d942011-10-04 23:51:14 -0700653static ssize_t wacom_led_select_store(struct device *dev, int set_id,
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700654 const char *buf, size_t count)
655{
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700656 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
Benjamin Tissoires29b47392014-07-24 12:52:23 -0700657 struct wacom *wacom = hid_get_drvdata(hdev);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700658 unsigned int id;
659 int err;
660
661 err = kstrtouint(buf, 10, &id);
662 if (err)
663 return err;
664
665 mutex_lock(&wacom->lock);
666
Ping Cheng09e7d942011-10-04 23:51:14 -0700667 wacom->led.select[set_id] = id & 0x3;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700668 err = wacom_led_control(wacom);
669
670 mutex_unlock(&wacom->lock);
671
672 return err < 0 ? err : count;
673}
674
Ping Cheng09e7d942011-10-04 23:51:14 -0700675#define DEVICE_LED_SELECT_ATTR(SET_ID) \
676static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
677 struct device_attribute *attr, const char *buf, size_t count) \
678{ \
679 return wacom_led_select_store(dev, SET_ID, buf, count); \
680} \
Ping Cheng04c59ab2011-10-04 23:51:49 -0700681static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
682 struct device_attribute *attr, char *buf) \
683{ \
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700684 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
Benjamin Tissoires29b47392014-07-24 12:52:23 -0700685 struct wacom *wacom = hid_get_drvdata(hdev); \
Ping Cheng37449ad2014-09-10 12:40:30 -0700686 return scnprintf(buf, PAGE_SIZE, "%d\n", \
687 wacom->led.select[SET_ID]); \
Ping Cheng04c59ab2011-10-04 23:51:49 -0700688} \
Ping Chenge0984bc2014-09-10 12:40:05 -0700689static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
Ping Cheng04c59ab2011-10-04 23:51:49 -0700690 wacom_led##SET_ID##_select_show, \
Ping Cheng09e7d942011-10-04 23:51:14 -0700691 wacom_led##SET_ID##_select_store)
692
693DEVICE_LED_SELECT_ATTR(0);
694DEVICE_LED_SELECT_ATTR(1);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700695
696static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
697 const char *buf, size_t count)
698{
699 unsigned int value;
700 int err;
701
702 err = kstrtouint(buf, 10, &value);
703 if (err)
704 return err;
705
706 mutex_lock(&wacom->lock);
707
708 *dest = value & 0x7f;
709 err = wacom_led_control(wacom);
710
711 mutex_unlock(&wacom->lock);
712
713 return err < 0 ? err : count;
714}
715
716#define DEVICE_LUMINANCE_ATTR(name, field) \
717static ssize_t wacom_##name##_luminance_store(struct device *dev, \
718 struct device_attribute *attr, const char *buf, size_t count) \
719{ \
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700720 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
Benjamin Tissoires29b47392014-07-24 12:52:23 -0700721 struct wacom *wacom = hid_get_drvdata(hdev); \
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700722 \
723 return wacom_luminance_store(wacom, &wacom->led.field, \
724 buf, count); \
725} \
Ping Cheng37449ad2014-09-10 12:40:30 -0700726static ssize_t wacom_##name##_luminance_show(struct device *dev, \
727 struct device_attribute *attr, char *buf) \
728{ \
729 struct wacom *wacom = dev_get_drvdata(dev); \
730 return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
731} \
Ping Chenge0984bc2014-09-10 12:40:05 -0700732static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
Ping Cheng37449ad2014-09-10 12:40:30 -0700733 wacom_##name##_luminance_show, \
734 wacom_##name##_luminance_store)
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700735
736DEVICE_LUMINANCE_ATTR(status0, llv);
737DEVICE_LUMINANCE_ATTR(status1, hlv);
738DEVICE_LUMINANCE_ATTR(buttons, img_lum);
739
740static ssize_t wacom_button_image_store(struct device *dev, int button_id,
741 const char *buf, size_t count)
742{
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700743 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
Benjamin Tissoires29b47392014-07-24 12:52:23 -0700744 struct wacom *wacom = hid_get_drvdata(hdev);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700745 int err;
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700746 unsigned len;
747 u8 xfer_id;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700748
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700749 if (hdev->bus == BUS_BLUETOOTH) {
750 len = 256;
751 xfer_id = WAC_CMD_ICON_BT_XFER;
752 } else {
753 len = 1024;
754 xfer_id = WAC_CMD_ICON_XFER;
755 }
756
757 if (count != len)
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700758 return -EINVAL;
759
760 mutex_lock(&wacom->lock);
761
Benjamin Tissoires849e2f02014-08-06 13:58:25 -0700762 err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf);
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700763
764 mutex_unlock(&wacom->lock);
765
766 return err < 0 ? err : count;
767}
768
769#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
770static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
771 struct device_attribute *attr, const char *buf, size_t count) \
772{ \
773 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
774} \
Ping Chenge0984bc2014-09-10 12:40:05 -0700775static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700776 NULL, wacom_btnimg##BUTTON_ID##_store)
777
778DEVICE_BTNIMG_ATTR(0);
779DEVICE_BTNIMG_ATTR(1);
780DEVICE_BTNIMG_ATTR(2);
781DEVICE_BTNIMG_ATTR(3);
782DEVICE_BTNIMG_ATTR(4);
783DEVICE_BTNIMG_ATTR(5);
784DEVICE_BTNIMG_ATTR(6);
785DEVICE_BTNIMG_ATTR(7);
786
Ping Cheng09e7d942011-10-04 23:51:14 -0700787static struct attribute *cintiq_led_attrs[] = {
788 &dev_attr_status_led0_select.attr,
789 &dev_attr_status_led1_select.attr,
790 NULL
791};
792
793static struct attribute_group cintiq_led_attr_group = {
794 .name = "wacom_led",
795 .attrs = cintiq_led_attrs,
796};
797
798static struct attribute *intuos4_led_attrs[] = {
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700799 &dev_attr_status0_luminance.attr,
800 &dev_attr_status1_luminance.attr,
Ping Cheng09e7d942011-10-04 23:51:14 -0700801 &dev_attr_status_led0_select.attr,
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700802 &dev_attr_buttons_luminance.attr,
803 &dev_attr_button0_rawimg.attr,
804 &dev_attr_button1_rawimg.attr,
805 &dev_attr_button2_rawimg.attr,
806 &dev_attr_button3_rawimg.attr,
807 &dev_attr_button4_rawimg.attr,
808 &dev_attr_button5_rawimg.attr,
809 &dev_attr_button6_rawimg.attr,
810 &dev_attr_button7_rawimg.attr,
811 NULL
812};
813
Ping Cheng09e7d942011-10-04 23:51:14 -0700814static struct attribute_group intuos4_led_attr_group = {
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700815 .name = "wacom_led",
Ping Cheng09e7d942011-10-04 23:51:14 -0700816 .attrs = intuos4_led_attrs,
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700817};
818
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700819static struct attribute *intuos5_led_attrs[] = {
820 &dev_attr_status0_luminance.attr,
821 &dev_attr_status_led0_select.attr,
822 NULL
823};
824
825static struct attribute_group intuos5_led_attr_group = {
826 .name = "wacom_led",
827 .attrs = intuos5_led_attrs,
828};
829
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700830static int wacom_initialize_leds(struct wacom *wacom)
831{
832 int error;
833
Ping Cheng09e7d942011-10-04 23:51:14 -0700834 /* Initialize default values */
835 switch (wacom->wacom_wac.features.type) {
Jason Gereckea19fc982012-06-12 00:27:53 -0700836 case INTUOS4S:
Ping Cheng09e7d942011-10-04 23:51:14 -0700837 case INTUOS4:
Benjamin Tissoires81af7e62014-08-06 13:55:56 -0700838 case INTUOS4WL:
Ping Cheng09e7d942011-10-04 23:51:14 -0700839 case INTUOS4L:
840 wacom->led.select[0] = 0;
841 wacom->led.select[1] = 0;
Ping Chengf4fa9a62011-10-04 23:49:42 -0700842 wacom->led.llv = 10;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700843 wacom->led.hlv = 20;
844 wacom->led.img_lum = 10;
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700845 error = sysfs_create_group(&wacom->hdev->dev.kobj,
Ping Cheng09e7d942011-10-04 23:51:14 -0700846 &intuos4_led_attr_group);
847 break;
848
Jason Gerecke246835f2011-12-12 00:12:04 -0800849 case WACOM_24HD:
Ping Cheng09e7d942011-10-04 23:51:14 -0700850 case WACOM_21UX2:
851 wacom->led.select[0] = 0;
852 wacom->led.select[1] = 0;
853 wacom->led.llv = 0;
854 wacom->led.hlv = 0;
855 wacom->led.img_lum = 0;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700856
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700857 error = sysfs_create_group(&wacom->hdev->dev.kobj,
Ping Cheng09e7d942011-10-04 23:51:14 -0700858 &cintiq_led_attr_group);
859 break;
860
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700861 case INTUOS5S:
862 case INTUOS5:
863 case INTUOS5L:
Ping Cheng9a35c412013-09-20 09:51:56 -0700864 case INTUOSPS:
865 case INTUOSPM:
866 case INTUOSPL:
Ping Chengc2b0c272013-09-20 09:50:14 -0700867 if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) {
868 wacom->led.select[0] = 0;
869 wacom->led.select[1] = 0;
870 wacom->led.llv = 32;
871 wacom->led.hlv = 0;
872 wacom->led.img_lum = 0;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700873
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700874 error = sysfs_create_group(&wacom->hdev->dev.kobj,
Ping Chengc2b0c272013-09-20 09:50:14 -0700875 &intuos5_led_attr_group);
876 } else
877 return 0;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700878 break;
879
Ping Cheng09e7d942011-10-04 23:51:14 -0700880 default:
881 return 0;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700882 }
883
Ping Cheng09e7d942011-10-04 23:51:14 -0700884 if (error) {
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700885 hid_err(wacom->hdev,
Ping Cheng09e7d942011-10-04 23:51:14 -0700886 "cannot create sysfs group err: %d\n", error);
887 return error;
888 }
889 wacom_led_control(wacom);
Benjamin Tissoiresc757cba2014-07-24 13:16:17 -0700890 wacom->led_initialized = true;
Ping Cheng09e7d942011-10-04 23:51:14 -0700891
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700892 return 0;
893}
894
895static void wacom_destroy_leds(struct wacom *wacom)
896{
Benjamin Tissoiresc757cba2014-07-24 13:16:17 -0700897 if (!wacom->led_initialized)
898 return;
899
900 wacom->led_initialized = false;
901
Ping Cheng09e7d942011-10-04 23:51:14 -0700902 switch (wacom->wacom_wac.features.type) {
Jason Gereckea19fc982012-06-12 00:27:53 -0700903 case INTUOS4S:
Ping Cheng09e7d942011-10-04 23:51:14 -0700904 case INTUOS4:
Benjamin Tissoires81af7e62014-08-06 13:55:56 -0700905 case INTUOS4WL:
Ping Cheng09e7d942011-10-04 23:51:14 -0700906 case INTUOS4L:
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700907 sysfs_remove_group(&wacom->hdev->dev.kobj,
Ping Cheng09e7d942011-10-04 23:51:14 -0700908 &intuos4_led_attr_group);
909 break;
910
Jason Gerecke246835f2011-12-12 00:12:04 -0800911 case WACOM_24HD:
Ping Cheng09e7d942011-10-04 23:51:14 -0700912 case WACOM_21UX2:
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700913 sysfs_remove_group(&wacom->hdev->dev.kobj,
Ping Cheng09e7d942011-10-04 23:51:14 -0700914 &cintiq_led_attr_group);
915 break;
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700916
917 case INTUOS5S:
918 case INTUOS5:
919 case INTUOS5L:
Ping Cheng9a35c412013-09-20 09:51:56 -0700920 case INTUOSPS:
921 case INTUOSPM:
922 case INTUOSPL:
Ping Chengc2b0c272013-09-20 09:50:14 -0700923 if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN)
Benjamin Tissoiresc31a4082014-07-24 12:59:45 -0700924 sysfs_remove_group(&wacom->hdev->dev.kobj,
Ping Chengc2b0c272013-09-20 09:50:14 -0700925 &intuos5_led_attr_group);
Jason Gerecke9b5b95d2012-04-03 15:50:37 -0700926 break;
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -0700927 }
928}
929
Chris Bagwella1d552c2012-03-25 23:26:30 -0700930static enum power_supply_property wacom_battery_props[] = {
Benjamin Tissoiresac8d1012014-07-25 17:29:48 -0700931 POWER_SUPPLY_PROP_STATUS,
Bastien Nocera6e2a6e82013-10-15 23:33:00 -0700932 POWER_SUPPLY_PROP_SCOPE,
Chris Bagwella1d552c2012-03-25 23:26:30 -0700933 POWER_SUPPLY_PROP_CAPACITY
934};
935
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -0700936static enum power_supply_property wacom_ac_props[] = {
937 POWER_SUPPLY_PROP_PRESENT,
938 POWER_SUPPLY_PROP_ONLINE,
939 POWER_SUPPLY_PROP_SCOPE,
940};
941
Chris Bagwella1d552c2012-03-25 23:26:30 -0700942static int wacom_battery_get_property(struct power_supply *psy,
943 enum power_supply_property psp,
944 union power_supply_propval *val)
945{
946 struct wacom *wacom = container_of(psy, struct wacom, battery);
947 int ret = 0;
948
949 switch (psp) {
Bastien Nocera6e2a6e82013-10-15 23:33:00 -0700950 case POWER_SUPPLY_PROP_SCOPE:
951 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
952 break;
Chris Bagwella1d552c2012-03-25 23:26:30 -0700953 case POWER_SUPPLY_PROP_CAPACITY:
954 val->intval =
Benjamin Tissoiresac8d1012014-07-25 17:29:48 -0700955 wacom->wacom_wac.battery_capacity;
956 break;
957 case POWER_SUPPLY_PROP_STATUS:
958 if (wacom->wacom_wac.bat_charging)
959 val->intval = POWER_SUPPLY_STATUS_CHARGING;
960 else if (wacom->wacom_wac.battery_capacity == 100 &&
961 wacom->wacom_wac.ps_connected)
962 val->intval = POWER_SUPPLY_STATUS_FULL;
963 else
964 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
Chris Bagwella1d552c2012-03-25 23:26:30 -0700965 break;
966 default:
967 ret = -EINVAL;
968 break;
969 }
970
971 return ret;
972}
973
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -0700974static int wacom_ac_get_property(struct power_supply *psy,
975 enum power_supply_property psp,
976 union power_supply_propval *val)
977{
978 struct wacom *wacom = container_of(psy, struct wacom, ac);
979 int ret = 0;
980
981 switch (psp) {
982 case POWER_SUPPLY_PROP_PRESENT:
983 /* fall through */
984 case POWER_SUPPLY_PROP_ONLINE:
985 val->intval = wacom->wacom_wac.ps_connected;
986 break;
987 case POWER_SUPPLY_PROP_SCOPE:
988 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
989 break;
990 default:
991 ret = -EINVAL;
992 break;
993 }
994 return ret;
995}
996
Chris Bagwella1d552c2012-03-25 23:26:30 -0700997static int wacom_initialize_battery(struct wacom *wacom)
998{
Benjamin Tissoiresd70420b92014-07-25 17:31:51 -0700999 static atomic_t battery_no = ATOMIC_INIT(0);
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001000 int error;
Benjamin Tissoiresd70420b92014-07-25 17:31:51 -07001001 unsigned long n;
Chris Bagwella1d552c2012-03-25 23:26:30 -07001002
Benjamin Tissoiresac8d1012014-07-25 17:29:48 -07001003 if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) {
Benjamin Tissoiresd70420b92014-07-25 17:31:51 -07001004 n = atomic_inc_return(&battery_no) - 1;
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001005
Chris Bagwella1d552c2012-03-25 23:26:30 -07001006 wacom->battery.properties = wacom_battery_props;
1007 wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
1008 wacom->battery.get_property = wacom_battery_get_property;
Benjamin Tissoiresd70420b92014-07-25 17:31:51 -07001009 sprintf(wacom->wacom_wac.bat_name, "wacom_battery_%ld", n);
1010 wacom->battery.name = wacom->wacom_wac.bat_name;
Chris Bagwella1d552c2012-03-25 23:26:30 -07001011 wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY;
1012 wacom->battery.use_for_apm = 0;
1013
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001014 wacom->ac.properties = wacom_ac_props;
1015 wacom->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
1016 wacom->ac.get_property = wacom_ac_get_property;
1017 sprintf(wacom->wacom_wac.ac_name, "wacom_ac_%ld", n);
1018 wacom->ac.name = wacom->wacom_wac.ac_name;
1019 wacom->ac.type = POWER_SUPPLY_TYPE_MAINS;
1020 wacom->ac.use_for_apm = 0;
1021
Benjamin Tissoiresdd3181a2014-07-24 13:01:40 -07001022 error = power_supply_register(&wacom->hdev->dev,
Chris Bagwella1d552c2012-03-25 23:26:30 -07001023 &wacom->battery);
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001024 if (error)
1025 return error;
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001026
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001027 power_supply_powers(&wacom->battery, &wacom->hdev->dev);
1028
1029 error = power_supply_register(&wacom->hdev->dev, &wacom->ac);
1030 if (error) {
1031 power_supply_unregister(&wacom->battery);
1032 return error;
1033 }
1034
1035 power_supply_powers(&wacom->ac, &wacom->hdev->dev);
Chris Bagwella1d552c2012-03-25 23:26:30 -07001036 }
1037
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001038 return 0;
Chris Bagwella1d552c2012-03-25 23:26:30 -07001039}
1040
1041static void wacom_destroy_battery(struct wacom *wacom)
1042{
Benjamin Tissoiresac8d1012014-07-25 17:29:48 -07001043 if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
1044 wacom->battery.dev) {
Chris Bagwella1d552c2012-03-25 23:26:30 -07001045 power_supply_unregister(&wacom->battery);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001046 wacom->battery.dev = NULL;
Benjamin Tissoires7dbd2292014-07-25 17:32:41 -07001047 power_supply_unregister(&wacom->ac);
1048 wacom->ac.dev = NULL;
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001049 }
Chris Bagwella1d552c2012-03-25 23:26:30 -07001050}
1051
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001052static ssize_t wacom_show_speed(struct device *dev,
1053 struct device_attribute
1054 *attr, char *buf)
1055{
1056 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1057 struct wacom *wacom = hid_get_drvdata(hdev);
1058
1059 return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed);
1060}
1061
1062static ssize_t wacom_store_speed(struct device *dev,
1063 struct device_attribute *attr,
1064 const char *buf, size_t count)
1065{
1066 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1067 struct wacom *wacom = hid_get_drvdata(hdev);
1068 u8 new_speed;
1069
1070 if (kstrtou8(buf, 0, &new_speed))
1071 return -EINVAL;
1072
1073 if (new_speed != 0 && new_speed != 1)
1074 return -EINVAL;
1075
1076 wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features);
1077
1078 return count;
1079}
1080
Ping Chenge0984bc2014-09-10 12:40:05 -07001081static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM,
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001082 wacom_show_speed, wacom_store_speed);
1083
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001084static struct input_dev *wacom_allocate_input(struct wacom *wacom)
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001085{
1086 struct input_dev *input_dev;
Benjamin Tissoiresb6c79f22014-07-24 13:00:03 -07001087 struct hid_device *hdev = wacom->hdev;
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001088 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001089
1090 input_dev = input_allocate_device();
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001091 if (!input_dev)
1092 return NULL;
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001093
1094 input_dev->name = wacom_wac->name;
Benjamin Tissoiresb6c79f22014-07-24 13:00:03 -07001095 input_dev->phys = hdev->phys;
1096 input_dev->dev.parent = &hdev->dev;
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001097 input_dev->open = wacom_open;
1098 input_dev->close = wacom_close;
Benjamin Tissoiresb6c79f22014-07-24 13:00:03 -07001099 input_dev->uniq = hdev->uniq;
1100 input_dev->id.bustype = hdev->bus;
1101 input_dev->id.vendor = hdev->vendor;
Benjamin Tissoires12969e32014-09-11 13:14:04 -04001102 input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product;
Benjamin Tissoiresb6c79f22014-07-24 13:00:03 -07001103 input_dev->id.version = hdev->version;
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001104 input_set_drvdata(input_dev, wacom);
1105
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001106 return input_dev;
1107}
1108
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001109static void wacom_free_inputs(struct wacom *wacom)
Benjamin Tissoires008f4d9e2014-07-24 12:51:26 -07001110{
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001111 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1112
1113 if (wacom_wac->input)
1114 input_free_device(wacom_wac->input);
1115 if (wacom_wac->pad_input)
1116 input_free_device(wacom_wac->pad_input);
1117 wacom_wac->input = NULL;
1118 wacom_wac->pad_input = NULL;
1119}
1120
1121static int wacom_allocate_inputs(struct wacom *wacom)
1122{
1123 struct input_dev *input_dev, *pad_input_dev;
1124 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1125
1126 input_dev = wacom_allocate_input(wacom);
1127 pad_input_dev = wacom_allocate_input(wacom);
1128 if (!input_dev || !pad_input_dev) {
1129 wacom_free_inputs(wacom);
1130 return -ENOMEM;
1131 }
1132
1133 wacom_wac->input = input_dev;
1134 wacom_wac->pad_input = pad_input_dev;
1135 wacom_wac->pad_input->name = wacom_wac->pad_name;
1136
1137 return 0;
1138}
1139
1140static void wacom_clean_inputs(struct wacom *wacom)
1141{
1142 if (wacom->wacom_wac.input) {
1143 if (wacom->wacom_wac.input_registered)
1144 input_unregister_device(wacom->wacom_wac.input);
1145 else
1146 input_free_device(wacom->wacom_wac.input);
1147 }
1148 if (wacom->wacom_wac.pad_input) {
Ping Cheng954df6a2014-11-20 16:31:12 -08001149 if (wacom->wacom_wac.pad_registered)
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001150 input_unregister_device(wacom->wacom_wac.pad_input);
1151 else
1152 input_free_device(wacom->wacom_wac.pad_input);
1153 }
Benjamin Tissoires008f4d9e2014-07-24 12:51:26 -07001154 wacom->wacom_wac.input = NULL;
1155 wacom->wacom_wac.pad_input = NULL;
Ping Cheng912ca212014-09-10 12:41:31 -07001156 wacom_destroy_leds(wacom);
Benjamin Tissoires008f4d9e2014-07-24 12:51:26 -07001157}
1158
1159static int wacom_register_inputs(struct wacom *wacom)
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001160{
1161 struct input_dev *input_dev, *pad_input_dev;
1162 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1163 int error;
1164
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001165 input_dev = wacom_wac->input;
1166 pad_input_dev = wacom_wac->pad_input;
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001167
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001168 if (!input_dev || !pad_input_dev)
1169 return -EINVAL;
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001170
Ping Cheng30ebc1a2014-11-18 13:29:16 -08001171 error = wacom_setup_pentouch_input_capabilities(input_dev, wacom_wac);
1172 if (!error) {
1173 error = input_register_device(input_dev);
1174 if (error)
1175 return error;
Ping Cheng954df6a2014-11-20 16:31:12 -08001176 wacom_wac->input_registered = true;
Ping Cheng30ebc1a2014-11-18 13:29:16 -08001177 }
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001178
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001179 error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac);
1180 if (error) {
1181 /* no pad in use on this interface */
1182 input_free_device(pad_input_dev);
1183 wacom_wac->pad_input = NULL;
1184 pad_input_dev = NULL;
1185 } else {
1186 error = input_register_device(pad_input_dev);
1187 if (error)
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001188 goto fail_register_pad_input;
Ping Cheng954df6a2014-11-20 16:31:12 -08001189 wacom_wac->pad_registered = true;
Ping Cheng912ca212014-09-10 12:41:31 -07001190
1191 error = wacom_initialize_leds(wacom);
1192 if (error)
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001193 goto fail_leds;
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001194 }
1195
Ping Cheng19635182012-04-29 21:09:18 -07001196 return 0;
1197
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001198fail_leds:
Ping Cheng912ca212014-09-10 12:41:31 -07001199 input_unregister_device(pad_input_dev);
1200 pad_input_dev = NULL;
Ping Cheng954df6a2014-11-20 16:31:12 -08001201 wacom_wac->pad_registered = false;
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001202fail_register_pad_input:
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001203 input_unregister_device(input_dev);
Ping Cheng19635182012-04-29 21:09:18 -07001204 wacom_wac->input = NULL;
Ping Cheng954df6a2014-11-20 16:31:12 -08001205 wacom_wac->input_registered = false;
Chris Bagwell3aac0ef2012-03-25 23:25:45 -07001206 return error;
1207}
1208
Chris Bagwell16bf2882012-03-25 23:26:20 -07001209static void wacom_wireless_work(struct work_struct *work)
1210{
1211 struct wacom *wacom = container_of(work, struct wacom, work);
1212 struct usb_device *usbdev = wacom->usbdev;
1213 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001214 struct hid_device *hdev1, *hdev2;
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001215 struct wacom *wacom1, *wacom2;
1216 struct wacom_wac *wacom_wac1, *wacom_wac2;
1217 int error;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001218
1219 /*
1220 * Regardless if this is a disconnect or a new tablet,
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001221 * remove any existing input and battery devices.
Chris Bagwell16bf2882012-03-25 23:26:20 -07001222 */
1223
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001224 wacom_destroy_battery(wacom);
1225
Chris Bagwell16bf2882012-03-25 23:26:20 -07001226 /* Stylus interface */
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001227 hdev1 = usb_get_intfdata(usbdev->config->interface[1]);
1228 wacom1 = hid_get_drvdata(hdev1);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001229 wacom_wac1 = &(wacom1->wacom_wac);
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001230 wacom_clean_inputs(wacom1);
Chris Bagwell16bf2882012-03-25 23:26:20 -07001231
1232 /* Touch interface */
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001233 hdev2 = usb_get_intfdata(usbdev->config->interface[2]);
1234 wacom2 = hid_get_drvdata(hdev2);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001235 wacom_wac2 = &(wacom2->wacom_wac);
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001236 wacom_clean_inputs(wacom2);
Chris Bagwell16bf2882012-03-25 23:26:20 -07001237
1238 if (wacom_wac->pid == 0) {
Benjamin Tissoirese2114ce2014-07-24 13:01:56 -07001239 hid_info(wacom->hdev, "wireless tablet disconnected\n");
Benjamin Tissoiresac8d1012014-07-25 17:29:48 -07001240 wacom_wac1->shared->type = 0;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001241 } else {
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001242 const struct hid_device_id *id = wacom_ids;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001243
Benjamin Tissoirese2114ce2014-07-24 13:01:56 -07001244 hid_info(wacom->hdev, "wireless tablet connected with PID %x\n",
Dmitry Torokhoveb71d1b2012-05-02 00:13:38 -07001245 wacom_wac->pid);
Chris Bagwell16bf2882012-03-25 23:26:20 -07001246
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001247 while (id->bus) {
1248 if (id->vendor == USB_VENDOR_ID_WACOM &&
1249 id->product == wacom_wac->pid)
Chris Bagwell16bf2882012-03-25 23:26:20 -07001250 break;
1251 id++;
1252 }
1253
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001254 if (!id->bus) {
Benjamin Tissoirese2114ce2014-07-24 13:01:56 -07001255 hid_info(wacom->hdev, "ignoring unknown PID.\n");
Chris Bagwell16bf2882012-03-25 23:26:20 -07001256 return;
1257 }
1258
1259 /* Stylus interface */
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001260 wacom_wac1->features =
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001261 *((struct wacom_features *)id->driver_data);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001262 wacom_wac1->features.device_type = BTN_TOOL_PEN;
Ping Cheng57bcfce2013-10-15 23:44:00 -07001263 snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
1264 wacom_wac1->features.name);
Benjamin Tissoires008f4d9e2014-07-24 12:51:26 -07001265 snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad",
1266 wacom_wac1->features.name);
Ping Cheng961794a2013-12-05 12:54:53 -08001267 wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
1268 wacom_wac1->shared->type = wacom_wac1->features.type;
Ping Cheng912ca212014-09-10 12:41:31 -07001269 wacom_wac1->pid = wacom_wac->pid;
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001270 error = wacom_allocate_inputs(wacom1) ||
1271 wacom_register_inputs(wacom1);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001272 if (error)
Ping Cheng57bcfce2013-10-15 23:44:00 -07001273 goto fail;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001274
1275 /* Touch interface */
Ping Chengb5fd2a32013-11-25 18:44:55 -08001276 if (wacom_wac1->features.touch_max ||
1277 wacom_wac1->features.type == INTUOSHT) {
Ping Cheng57bcfce2013-10-15 23:44:00 -07001278 wacom_wac2->features =
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001279 *((struct wacom_features *)id->driver_data);
Ping Cheng57bcfce2013-10-15 23:44:00 -07001280 wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
1281 wacom_wac2->features.device_type = BTN_TOOL_FINGER;
1282 wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
1283 if (wacom_wac2->features.touch_max)
1284 snprintf(wacom_wac2->name, WACOM_NAME_MAX,
1285 "%s (WL) Finger",wacom_wac2->features.name);
1286 else
1287 snprintf(wacom_wac2->name, WACOM_NAME_MAX,
1288 "%s (WL) Pad",wacom_wac2->features.name);
Benjamin Tissoires008f4d9e2014-07-24 12:51:26 -07001289 snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX,
1290 "%s (WL) Pad", wacom_wac2->features.name);
Ping Cheng912ca212014-09-10 12:41:31 -07001291 wacom_wac2->pid = wacom_wac->pid;
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001292 error = wacom_allocate_inputs(wacom2) ||
1293 wacom_register_inputs(wacom2);
Ping Cheng57bcfce2013-10-15 23:44:00 -07001294 if (error)
1295 goto fail;
Ping Cheng961794a2013-12-05 12:54:53 -08001296
1297 if (wacom_wac1->features.type == INTUOSHT &&
1298 wacom_wac1->features.touch_max)
1299 wacom_wac->shared->touch_input = wacom_wac2->input;
Ping Cheng57bcfce2013-10-15 23:44:00 -07001300 }
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001301
1302 error = wacom_initialize_battery(wacom);
1303 if (error)
Ping Cheng57bcfce2013-10-15 23:44:00 -07001304 goto fail;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001305 }
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001306
1307 return;
1308
Ping Cheng57bcfce2013-10-15 23:44:00 -07001309fail:
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001310 wacom_clean_inputs(wacom1);
1311 wacom_clean_inputs(wacom2);
Chris Bagwellb7af2bb2012-06-12 00:25:23 -07001312 return;
Chris Bagwell16bf2882012-03-25 23:26:20 -07001313}
1314
Ping Cheng401d7d12013-07-28 00:38:54 -07001315/*
1316 * Not all devices report physical dimensions from HID.
1317 * Compute the default from hardcoded logical dimension
1318 * and resolution before driver overwrites them.
1319 */
1320static void wacom_set_default_phy(struct wacom_features *features)
1321{
1322 if (features->x_resolution) {
1323 features->x_phy = (features->x_max * 100) /
1324 features->x_resolution;
1325 features->y_phy = (features->y_max * 100) /
1326 features->y_resolution;
1327 }
1328}
1329
1330static void wacom_calculate_res(struct wacom_features *features)
1331{
1332 features->x_resolution = wacom_calc_hid_res(features->x_max,
1333 features->x_phy,
1334 features->unit,
1335 features->unitExpo);
1336 features->y_resolution = wacom_calc_hid_res(features->y_max,
1337 features->y_phy,
1338 features->unit,
1339 features->unitExpo);
1340}
1341
Benjamin Tissoires01c846f2014-07-24 12:59:11 -07001342static size_t wacom_compute_pktlen(struct hid_device *hdev)
1343{
1344 struct hid_report_enum *report_enum;
1345 struct hid_report *report;
1346 size_t size = 0;
1347
1348 report_enum = hdev->report_enum + HID_INPUT_REPORT;
1349
1350 list_for_each_entry(report, &report_enum->report_list, list) {
Mathieu Magnaudetdabb05c62014-11-27 16:02:36 +01001351 size_t report_size = hid_report_len(report);
Benjamin Tissoires01c846f2014-07-24 12:59:11 -07001352 if (report_size > size)
1353 size = report_size;
1354 }
1355
1356 return size;
1357}
1358
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001359static int wacom_probe(struct hid_device *hdev,
1360 const struct hid_device_id *id)
Ping Cheng3bea7332006-07-13 18:01:36 -07001361{
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001362 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
Ping Cheng3bea7332006-07-13 18:01:36 -07001363 struct usb_device *dev = interface_to_usbdev(intf);
Ping Cheng3bea7332006-07-13 18:01:36 -07001364 struct wacom *wacom;
1365 struct wacom_wac *wacom_wac;
Jason Childse33da8a2010-02-17 22:38:31 -08001366 struct wacom_features *features;
Jason Childse33da8a2010-02-17 22:38:31 -08001367 int error;
Benjamin Tissoires7704ac92014-09-23 12:08:08 -04001368 unsigned int connect_mask = HID_CONNECT_HIDRAW;
Ping Cheng3bea7332006-07-13 18:01:36 -07001369
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001370 if (!id->driver_data)
Bastian Blankb036f6f2010-02-10 23:06:23 -08001371 return -EINVAL;
1372
Benjamin Tissoires8ffffd52014-09-16 16:56:39 -04001373 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1374
Ping Cheng3bea7332006-07-13 18:01:36 -07001375 wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
Dan Carpenterf1823942012-03-29 22:38:11 -07001376 if (!wacom)
1377 return -ENOMEM;
Ping Cheng3bea7332006-07-13 18:01:36 -07001378
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001379 hid_set_drvdata(hdev, wacom);
1380 wacom->hdev = hdev;
1381
Benjamin Tissoiresba9a3542014-07-24 12:58:45 -07001382 /* ask for the report descriptor to be loaded by HID */
1383 error = hid_parse(hdev);
1384 if (error) {
1385 hid_err(hdev, "parse failed\n");
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001386 goto fail_parse;
Benjamin Tissoiresba9a3542014-07-24 12:58:45 -07001387 }
1388
Dmitry Torokhov51269fe2010-03-19 22:18:15 -07001389 wacom_wac = &wacom->wacom_wac;
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001390 wacom_wac->features = *((struct wacom_features *)id->driver_data);
Jason Childse33da8a2010-02-17 22:38:31 -08001391 features = &wacom_wac->features;
Benjamin Tissoires01c846f2014-07-24 12:59:11 -07001392 features->pktlen = wacom_compute_pktlen(hdev);
Jason Childse33da8a2010-02-17 22:38:31 -08001393 if (features->pktlen > WACOM_PKGLEN_MAX) {
1394 error = -EINVAL;
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001395 goto fail_pktlen;
Jason Childse33da8a2010-02-17 22:38:31 -08001396 }
1397
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001398 if (features->check_for_hid_type && features->hid_type != hdev->type) {
1399 error = -ENODEV;
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001400 goto fail_type;
Jason Childse33da8a2010-02-17 22:38:31 -08001401 }
Ping Cheng3bea7332006-07-13 18:01:36 -07001402
Ping Cheng3bea7332006-07-13 18:01:36 -07001403 wacom->usbdev = dev;
Oliver Neukume7224092008-04-15 01:31:57 -04001404 wacom->intf = intf;
1405 mutex_init(&wacom->lock);
Chris Bagwell16bf2882012-03-25 23:26:20 -07001406 INIT_WORK(&wacom->work, wacom_wireless_work);
Ping Cheng3bea7332006-07-13 18:01:36 -07001407
Benjamin Tissoires494078b2014-09-23 12:08:07 -04001408 if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
1409 error = wacom_allocate_inputs(wacom);
1410 if (error)
1411 goto fail_allocate_inputs;
1412 }
1413
Ping Cheng401d7d12013-07-28 00:38:54 -07001414 /* set the default size in case we do not get them from hid */
1415 wacom_set_default_phy(features);
1416
Ping Chengf393ee22012-04-29 21:09:17 -07001417 /* Retrieve the physical and logical size for touch devices */
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -07001418 wacom_retrieve_hid_descriptor(hdev, features);
Ping Cheng545f4e92008-11-24 11:44:27 -05001419
Jason Gereckeae584ca2012-04-03 15:50:40 -07001420 /*
1421 * Intuos5 has no useful data about its touch interface in its
Benjamin Tissoires01c846f2014-07-24 12:59:11 -07001422 * HID descriptor. If this is the touch interface (PacketSize
Jason Gereckeae584ca2012-04-03 15:50:40 -07001423 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1424 */
Ping Chengb5fd2a32013-11-25 18:44:55 -08001425 if (features->type >= INTUOS5S && features->type <= INTUOSHT) {
Benjamin Tissoires01c846f2014-07-24 12:59:11 -07001426 if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
Jason Gereckeae584ca2012-04-03 15:50:40 -07001427 features->device_type = BTN_TOOL_FINGER;
Jason Gereckeae584ca2012-04-03 15:50:40 -07001428
Jason Gereckeae584ca2012-04-03 15:50:40 -07001429 features->x_max = 4096;
1430 features->y_max = 4096;
1431 } else {
1432 features->device_type = BTN_TOOL_PEN;
1433 }
1434 }
1435
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -07001436 /*
1437 * Same thing for Bamboo 3rd gen.
1438 */
1439 if ((features->type == BAMBOO_PT) &&
1440 (features->pktlen == WACOM_PKGLEN_BBTOUCH3) &&
1441 (features->device_type == BTN_TOOL_PEN)) {
1442 features->device_type = BTN_TOOL_FINGER;
1443
1444 features->x_max = 4096;
1445 features->y_max = 4096;
1446 }
1447
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001448 if (hdev->bus == BUS_BLUETOOTH)
1449 features->quirks |= WACOM_QUIRK_BATTERY;
1450
Henrik Rydbergbc73dd32010-09-05 12:26:16 -07001451 wacom_setup_device_quirks(features);
1452
Ping Cheng401d7d12013-07-28 00:38:54 -07001453 /* set unit to "100th of a mm" for devices not reported by HID */
1454 if (!features->unit) {
1455 features->unit = 0x11;
Benjamin Tissoiresc669fb22014-07-24 13:02:14 -07001456 features->unitExpo = -3;
Ping Cheng401d7d12013-07-28 00:38:54 -07001457 }
1458 wacom_calculate_res(features);
1459
Ping Cheng49b764a2010-02-20 00:53:49 -08001460 strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
Benjamin Tissoiresd2d13f12014-07-24 12:48:28 -07001461 snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name),
1462 "%s Pad", features->name);
Ping Cheng49b764a2010-02-20 00:53:49 -08001463
Henrik Rydbergbc73dd32010-09-05 12:26:16 -07001464 if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
Ping Cheng49b764a2010-02-20 00:53:49 -08001465 /* Append the device type to the name */
Ping Cheng57bcfce2013-10-15 23:44:00 -07001466 if (features->device_type != BTN_TOOL_FINGER)
1467 strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX);
1468 else if (features->touch_max)
1469 strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX);
1470 else
1471 strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX);
Ping Cheng4492eff2010-03-19 22:18:15 -07001472
Benjamin Tissoires4451e082014-07-24 13:01:05 -07001473 error = wacom_add_shared_data(hdev);
Ping Cheng4492eff2010-03-19 22:18:15 -07001474 if (error)
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001475 goto fail_shared_data;
Ping Cheng49b764a2010-02-20 00:53:49 -08001476 }
1477
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001478 if (!(features->quirks & WACOM_QUIRK_MONITOR) &&
1479 (features->quirks & WACOM_QUIRK_BATTERY)) {
1480 error = wacom_initialize_battery(wacom);
1481 if (error)
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001482 goto fail_battery;
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001483 }
1484
Chris Bagwelld3825d52012-03-25 23:26:11 -07001485 if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
Benjamin Tissoires494078b2014-09-23 12:08:07 -04001486 error = wacom_register_inputs(wacom);
Chris Bagwelld3825d52012-03-25 23:26:11 -07001487 if (error)
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001488 goto fail_register_inputs;
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001489 }
1490
1491 if (hdev->bus == BUS_BLUETOOTH) {
1492 error = device_create_file(&hdev->dev, &dev_attr_speed);
1493 if (error)
1494 hid_warn(hdev,
1495 "can't create sysfs speed attribute err: %d\n",
1496 error);
Chris Bagwelld3825d52012-03-25 23:26:11 -07001497 }
Eduard Hasenleithner5d7e7d42011-09-07 14:08:54 -07001498
Benjamin Tissoires7704ac92014-09-23 12:08:08 -04001499 if (features->type == HID_GENERIC)
1500 connect_mask |= HID_CONNECT_DRIVER;
1501
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001502 /* Regular HID work starts now */
Benjamin Tissoires7704ac92014-09-23 12:08:08 -04001503 error = hid_hw_start(hdev, connect_mask);
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001504 if (error) {
1505 hid_err(hdev, "hw start failed\n");
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001506 goto fail_hw_start;
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001507 }
1508
Benjamin Tissoires5ae6e892014-09-23 12:08:09 -04001509 /* Note that if query fails it is not a hard failure */
1510 wacom_query_tablet_data(hdev, features);
1511
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001512 if (features->quirks & WACOM_QUIRK_MONITOR)
1513 error = hid_hw_open(hdev);
1514
Ping Cheng961794a2013-12-05 12:54:53 -08001515 if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) {
1516 if (wacom_wac->features.device_type == BTN_TOOL_FINGER)
1517 wacom_wac->shared->touch_input = wacom_wac->input;
1518 }
1519
Ping Cheng3bea7332006-07-13 18:01:36 -07001520 return 0;
1521
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001522fail_hw_start:
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001523 if (hdev->bus == BUS_BLUETOOTH)
1524 device_remove_file(&hdev->dev, &dev_attr_speed);
1525fail_register_inputs:
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001526 wacom_clean_inputs(wacom);
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001527 wacom_destroy_battery(wacom);
1528fail_battery:
1529 wacom_remove_shared_data(wacom_wac);
1530fail_shared_data:
Benjamin Tissoires494078b2014-09-23 12:08:07 -04001531 wacom_clean_inputs(wacom);
1532fail_allocate_inputs:
Benjamin Tissoires7fefeec2014-09-23 12:08:05 -04001533fail_type:
1534fail_pktlen:
1535fail_parse:
1536 kfree(wacom);
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001537 hid_set_drvdata(hdev, NULL);
Dmitry Torokhov50141862007-04-12 01:33:39 -04001538 return error;
Ping Cheng3bea7332006-07-13 18:01:36 -07001539}
1540
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001541static void wacom_remove(struct hid_device *hdev)
Ping Cheng3bea7332006-07-13 18:01:36 -07001542{
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001543 struct wacom *wacom = hid_get_drvdata(hdev);
Ping Cheng3bea7332006-07-13 18:01:36 -07001544
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001545 hid_hw_stop(hdev);
Oliver Neukume7224092008-04-15 01:31:57 -04001546
Chris Bagwell16bf2882012-03-25 23:26:20 -07001547 cancel_work_sync(&wacom->work);
Benjamin Tissoires2546dac2014-09-23 12:08:06 -04001548 wacom_clean_inputs(wacom);
Benjamin Tissoiresf81a1292014-08-06 13:48:01 -07001549 if (hdev->bus == BUS_BLUETOOTH)
1550 device_remove_file(&hdev->dev, &dev_attr_speed);
Chris Bagwella1d552c2012-03-25 23:26:30 -07001551 wacom_destroy_battery(wacom);
Dmitry Torokhov51269fe2010-03-19 22:18:15 -07001552 wacom_remove_shared_data(&wacom->wacom_wac);
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001553
1554 hid_set_drvdata(hdev, NULL);
Oliver Neukume7224092008-04-15 01:31:57 -04001555 kfree(wacom);
1556}
1557
Geert Uytterhoeven41a74582014-08-11 11:03:19 -07001558#ifdef CONFIG_PM
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001559static int wacom_resume(struct hid_device *hdev)
Oliver Neukume7224092008-04-15 01:31:57 -04001560{
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001561 struct wacom *wacom = hid_get_drvdata(hdev);
1562 struct wacom_features *features = &wacom->wacom_wac.features;
Oliver Neukume7224092008-04-15 01:31:57 -04001563
1564 mutex_lock(&wacom->lock);
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001565
1566 /* switch to wacom mode first */
Benjamin Tissoires27b20a92014-07-24 12:56:22 -07001567 wacom_query_tablet_data(hdev, features);
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001568 wacom_led_control(wacom);
1569
Oliver Neukume7224092008-04-15 01:31:57 -04001570 mutex_unlock(&wacom->lock);
1571
1572 return 0;
1573}
1574
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001575static int wacom_reset_resume(struct hid_device *hdev)
Oliver Neukume7224092008-04-15 01:31:57 -04001576{
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001577 return wacom_resume(hdev);
Oliver Neukume7224092008-04-15 01:31:57 -04001578}
Geert Uytterhoeven41a74582014-08-11 11:03:19 -07001579#endif /* CONFIG_PM */
Oliver Neukume7224092008-04-15 01:31:57 -04001580
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001581static struct hid_driver wacom_driver = {
Ping Cheng3bea7332006-07-13 18:01:36 -07001582 .name = "wacom",
Bastian Blankb036f6f2010-02-10 23:06:23 -08001583 .id_table = wacom_ids,
Ping Cheng3bea7332006-07-13 18:01:36 -07001584 .probe = wacom_probe,
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001585 .remove = wacom_remove,
Benjamin Tissoires7704ac92014-09-23 12:08:08 -04001586 .event = wacom_wac_event,
1587 .report = wacom_wac_report,
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001588#ifdef CONFIG_PM
Oliver Neukume7224092008-04-15 01:31:57 -04001589 .resume = wacom_resume,
1590 .reset_resume = wacom_reset_resume,
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001591#endif
1592 .raw_event = wacom_raw_event,
Ping Cheng3bea7332006-07-13 18:01:36 -07001593};
Benjamin Tissoires29b47392014-07-24 12:52:23 -07001594module_hid_driver(wacom_driver);
Benjamin Tissoiresf2e0a7d2014-08-06 14:07:49 -07001595
1596MODULE_VERSION(DRIVER_VERSION);
1597MODULE_AUTHOR(DRIVER_AUTHOR);
1598MODULE_DESCRIPTION(DRIVER_DESC);
1599MODULE_LICENSE(DRIVER_LICENSE);