Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
128537ce MP |
2 | /* |
3 | * Apple "Magic" Wireless Mouse driver | |
4 | * | |
5 | * Copyright (c) 2010 Michael Poole <mdpoole@troilus.org> | |
a462230e | 6 | * Copyright (c) 2010 Chase Douglas <chase.douglas@canonical.com> |
128537ce MP |
7 | */ |
8 | ||
9 | /* | |
128537ce MP |
10 | */ |
11 | ||
4291ee30 JP |
12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
13 | ||
128537ce MP |
14 | #include <linux/device.h> |
15 | #include <linux/hid.h> | |
a6d1bc1d | 16 | #include <linux/input/mt.h> |
128537ce | 17 | #include <linux/module.h> |
5a0e3ad6 | 18 | #include <linux/slab.h> |
c0dc5582 | 19 | #include <linux/workqueue.h> |
128537ce MP |
20 | |
21 | #include "hid-ids.h" | |
22 | ||
71b38bd4 | 23 | static bool emulate_3button = true; |
128537ce MP |
24 | module_param(emulate_3button, bool, 0644); |
25 | MODULE_PARM_DESC(emulate_3button, "Emulate a middle button"); | |
26 | ||
27 | static int middle_button_start = -350; | |
28 | static int middle_button_stop = +350; | |
29 | ||
71b38bd4 | 30 | static bool emulate_scroll_wheel = true; |
128537ce MP |
31 | module_param(emulate_scroll_wheel, bool, 0644); |
32 | MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel"); | |
33 | ||
0b778e76 | 34 | static unsigned int scroll_speed = 32; |
e4dca7b7 KC |
35 | static int param_set_scroll_speed(const char *val, |
36 | const struct kernel_param *kp) { | |
0b778e76 | 37 | unsigned long speed; |
dfc450b5 | 38 | if (!val || kstrtoul(val, 0, &speed) || speed > 63) |
0b778e76 CD |
39 | return -EINVAL; |
40 | scroll_speed = speed; | |
41 | return 0; | |
42 | } | |
43 | module_param_call(scroll_speed, param_set_scroll_speed, param_get_uint, &scroll_speed, 0644); | |
44 | MODULE_PARM_DESC(scroll_speed, "Scroll speed, value from 0 (slow) to 63 (fast)"); | |
45 | ||
9846f350 CD |
46 | static bool scroll_acceleration = false; |
47 | module_param(scroll_acceleration, bool, 0644); | |
48 | MODULE_PARM_DESC(scroll_acceleration, "Accelerate sequential scroll events"); | |
49 | ||
71b38bd4 | 50 | static bool report_undeciphered; |
128537ce MP |
51 | module_param(report_undeciphered, bool, 0644); |
52 | MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event"); | |
53 | ||
5768701e JE |
54 | #define TRACKPAD2_2021_BT_VERSION 0x110 |
55 | ||
a462230e | 56 | #define TRACKPAD_REPORT_ID 0x28 |
9d7b1866 SB |
57 | #define TRACKPAD2_USB_REPORT_ID 0x02 |
58 | #define TRACKPAD2_BT_REPORT_ID 0x31 | |
a462230e | 59 | #define MOUSE_REPORT_ID 0x29 |
2b0c086c | 60 | #define MOUSE2_REPORT_ID 0x12 |
a462230e | 61 | #define DOUBLE_REPORT_ID 0xf7 |
0b91b4e4 JE |
62 | #define USB_BATTERY_TIMEOUT_MS 60000 |
63 | ||
128537ce MP |
64 | /* These definitions are not precise, but they're close enough. (Bits |
65 | * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem | |
66 | * to be some kind of bit mask -- 0x20 may be a near-field reading, | |
67 | * and 0x40 is actual contact, and 0x10 may be a start/stop or change | |
68 | * indication.) | |
69 | */ | |
70 | #define TOUCH_STATE_MASK 0xf0 | |
71 | #define TOUCH_STATE_NONE 0x00 | |
72 | #define TOUCH_STATE_START 0x30 | |
73 | #define TOUCH_STATE_DRAG 0x40 | |
74 | ||
d4b9f10a JE |
75 | /* Number of high-resolution events for each low-resolution detent. */ |
76 | #define SCROLL_HR_STEPS 10 | |
77 | #define SCROLL_HR_MULT (120 / SCROLL_HR_STEPS) | |
9d60648c | 78 | #define SCROLL_HR_THRESHOLD 90 /* units */ |
0b778e76 CD |
79 | #define SCROLL_ACCEL_DEFAULT 7 |
80 | ||
4f6fdf08 CD |
81 | /* Touch surface information. Dimension is in hundredths of a mm, min and max |
82 | * are in units. */ | |
83 | #define MOUSE_DIMENSION_X (float)9056 | |
84 | #define MOUSE_MIN_X -1100 | |
85 | #define MOUSE_MAX_X 1258 | |
86 | #define MOUSE_RES_X ((MOUSE_MAX_X - MOUSE_MIN_X) / (MOUSE_DIMENSION_X / 100)) | |
87 | #define MOUSE_DIMENSION_Y (float)5152 | |
88 | #define MOUSE_MIN_Y -1589 | |
89 | #define MOUSE_MAX_Y 2047 | |
90 | #define MOUSE_RES_Y ((MOUSE_MAX_Y - MOUSE_MIN_Y) / (MOUSE_DIMENSION_Y / 100)) | |
91 | ||
92 | #define TRACKPAD_DIMENSION_X (float)13000 | |
93 | #define TRACKPAD_MIN_X -2909 | |
94 | #define TRACKPAD_MAX_X 3167 | |
95 | #define TRACKPAD_RES_X \ | |
96 | ((TRACKPAD_MAX_X - TRACKPAD_MIN_X) / (TRACKPAD_DIMENSION_X / 100)) | |
97 | #define TRACKPAD_DIMENSION_Y (float)11000 | |
98 | #define TRACKPAD_MIN_Y -2456 | |
99 | #define TRACKPAD_MAX_Y 2565 | |
100 | #define TRACKPAD_RES_Y \ | |
101 | ((TRACKPAD_MAX_Y - TRACKPAD_MIN_Y) / (TRACKPAD_DIMENSION_Y / 100)) | |
102 | ||
9d7b1866 SB |
103 | #define TRACKPAD2_DIMENSION_X (float)16000 |
104 | #define TRACKPAD2_MIN_X -3678 | |
105 | #define TRACKPAD2_MAX_X 3934 | |
106 | #define TRACKPAD2_RES_X \ | |
107 | ((TRACKPAD2_MAX_X - TRACKPAD2_MIN_X) / (TRACKPAD2_DIMENSION_X / 100)) | |
108 | #define TRACKPAD2_DIMENSION_Y (float)11490 | |
109 | #define TRACKPAD2_MIN_Y -2478 | |
110 | #define TRACKPAD2_MAX_Y 2587 | |
111 | #define TRACKPAD2_RES_Y \ | |
112 | ((TRACKPAD2_MAX_Y - TRACKPAD2_MIN_Y) / (TRACKPAD2_DIMENSION_Y / 100)) | |
113 | ||
128537ce MP |
114 | /** |
115 | * struct magicmouse_sc - Tracks Magic Mouse-specific data. | |
116 | * @input: Input device through which we report events. | |
117 | * @quirks: Currently unused. | |
128537ce MP |
118 | * @ntouches: Number of touches in most recent touch report. |
119 | * @scroll_accel: Number of consecutive scroll motions. | |
120 | * @scroll_jiffies: Time of last scroll motion. | |
121 | * @touches: Most recent data for a touch, indexed by tracking ID. | |
122 | * @tracking_ids: Mapping of current touch input data to @touches. | |
123 | */ | |
124 | struct magicmouse_sc { | |
125 | struct input_dev *input; | |
126 | unsigned long quirks; | |
127 | ||
128537ce MP |
128 | int ntouches; |
129 | int scroll_accel; | |
130 | unsigned long scroll_jiffies; | |
131 | ||
132 | struct { | |
133 | short x; | |
134 | short y; | |
c0426688 | 135 | short scroll_x; |
128537ce | 136 | short scroll_y; |
d4b9f10a JE |
137 | short scroll_x_hr; |
138 | short scroll_y_hr; | |
128537ce | 139 | u8 size; |
9d60648c JE |
140 | bool scroll_x_active; |
141 | bool scroll_y_active; | |
128537ce MP |
142 | } touches[16]; |
143 | int tracking_ids[16]; | |
c0dc5582 JC |
144 | |
145 | struct hid_device *hdev; | |
146 | struct delayed_work work; | |
0b91b4e4 | 147 | struct timer_list battery_timer; |
128537ce MP |
148 | }; |
149 | ||
150 | static int magicmouse_firm_touch(struct magicmouse_sc *msc) | |
151 | { | |
152 | int touch = -1; | |
153 | int ii; | |
154 | ||
155 | /* If there is only one "firm" touch, set touch to its | |
156 | * tracking ID. | |
157 | */ | |
158 | for (ii = 0; ii < msc->ntouches; ii++) { | |
159 | int idx = msc->tracking_ids[ii]; | |
160 | if (msc->touches[idx].size < 8) { | |
161 | /* Ignore this touch. */ | |
162 | } else if (touch >= 0) { | |
163 | touch = -1; | |
164 | break; | |
165 | } else { | |
166 | touch = idx; | |
167 | } | |
168 | } | |
169 | ||
170 | return touch; | |
171 | } | |
172 | ||
173 | static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state) | |
174 | { | |
71b38bd4 MP |
175 | int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 | |
176 | test_bit(BTN_RIGHT, msc->input->key) << 1 | | |
177 | test_bit(BTN_MIDDLE, msc->input->key) << 2; | |
128537ce MP |
178 | |
179 | if (emulate_3button) { | |
180 | int id; | |
181 | ||
182 | /* If some button was pressed before, keep it held | |
183 | * down. Otherwise, if there's exactly one firm | |
184 | * touch, use that to override the mouse's guess. | |
185 | */ | |
186 | if (state == 0) { | |
187 | /* The button was released. */ | |
188 | } else if (last_state != 0) { | |
189 | state = last_state; | |
190 | } else if ((id = magicmouse_firm_touch(msc)) >= 0) { | |
191 | int x = msc->touches[id].x; | |
192 | if (x < middle_button_start) | |
193 | state = 1; | |
194 | else if (x > middle_button_stop) | |
195 | state = 2; | |
196 | else | |
197 | state = 4; | |
198 | } /* else: we keep the mouse's guess */ | |
199 | ||
200 | input_report_key(msc->input, BTN_MIDDLE, state & 4); | |
201 | } | |
202 | ||
203 | input_report_key(msc->input, BTN_LEFT, state & 1); | |
204 | input_report_key(msc->input, BTN_RIGHT, state & 2); | |
205 | ||
206 | if (state != last_state) | |
0b778e76 | 207 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
128537ce MP |
208 | } |
209 | ||
210 | static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata) | |
211 | { | |
212 | struct input_dev *input = msc->input; | |
a462230e | 213 | int id, x, y, size, orientation, touch_major, touch_minor, state, down; |
9d7b1866 | 214 | int pressure = 0; |
a462230e | 215 | |
2b0c086c JC |
216 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE || |
217 | input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { | |
a462230e CD |
218 | id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf; |
219 | x = (tdata[1] << 28 | tdata[0] << 20) >> 20; | |
220 | y = -((tdata[2] << 24 | tdata[1] << 16) >> 20); | |
221 | size = tdata[5] & 0x3f; | |
222 | orientation = (tdata[6] >> 2) - 32; | |
223 | touch_major = tdata[3]; | |
224 | touch_minor = tdata[4]; | |
225 | state = tdata[7] & TOUCH_STATE_MASK; | |
226 | down = state != TOUCH_STATE_NONE; | |
9d7b1866 SB |
227 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
228 | id = tdata[8] & 0xf; | |
229 | x = (tdata[1] << 27 | tdata[0] << 19) >> 19; | |
230 | y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19); | |
231 | size = tdata[6]; | |
232 | orientation = (tdata[8] >> 5) - 4; | |
233 | touch_major = tdata[4]; | |
234 | touch_minor = tdata[5]; | |
235 | pressure = tdata[7]; | |
236 | state = tdata[3] & 0xC0; | |
237 | down = state == 0x80; | |
a462230e CD |
238 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
239 | id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf; | |
240 | x = (tdata[1] << 27 | tdata[0] << 19) >> 19; | |
241 | y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19); | |
242 | size = tdata[6] & 0x3f; | |
243 | orientation = (tdata[7] >> 2) - 32; | |
244 | touch_major = tdata[4]; | |
245 | touch_minor = tdata[5]; | |
246 | state = tdata[8] & TOUCH_STATE_MASK; | |
247 | down = state != TOUCH_STATE_NONE; | |
248 | } | |
128537ce MP |
249 | |
250 | /* Store tracking ID and other fields. */ | |
251 | msc->tracking_ids[raw_id] = id; | |
252 | msc->touches[id].x = x; | |
253 | msc->touches[id].y = y; | |
6de048bf | 254 | msc->touches[id].size = size; |
128537ce MP |
255 | |
256 | /* If requested, emulate a scroll wheel by detecting small | |
ef566d30 | 257 | * vertical touch motions. |
128537ce | 258 | */ |
9d7b1866 SB |
259 | if (emulate_scroll_wheel && (input->id.product != |
260 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)) { | |
128537ce | 261 | unsigned long now = jiffies; |
c0426688 CD |
262 | int step_x = msc->touches[id].scroll_x - x; |
263 | int step_y = msc->touches[id].scroll_y - y; | |
a1091118 CP |
264 | int step_hr = |
265 | max_t(int, | |
266 | ((64 - (int)scroll_speed) * msc->scroll_accel) / | |
267 | SCROLL_HR_STEPS, | |
268 | 1); | |
d4b9f10a JE |
269 | int step_x_hr = msc->touches[id].scroll_x_hr - x; |
270 | int step_y_hr = msc->touches[id].scroll_y_hr - y; | |
128537ce | 271 | |
128537ce | 272 | /* Calculate and apply the scroll motion. */ |
6de048bf | 273 | switch (state) { |
128537ce | 274 | case TOUCH_STATE_START: |
c0426688 | 275 | msc->touches[id].scroll_x = x; |
128537ce | 276 | msc->touches[id].scroll_y = y; |
d4b9f10a JE |
277 | msc->touches[id].scroll_x_hr = x; |
278 | msc->touches[id].scroll_y_hr = y; | |
9d60648c JE |
279 | msc->touches[id].scroll_x_active = false; |
280 | msc->touches[id].scroll_y_active = false; | |
0b778e76 CD |
281 | |
282 | /* Reset acceleration after half a second. */ | |
283 | if (scroll_acceleration && time_before(now, | |
284 | msc->scroll_jiffies + HZ / 2)) | |
285 | msc->scroll_accel = max_t(int, | |
286 | msc->scroll_accel - 1, 1); | |
287 | else | |
288 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; | |
289 | ||
128537ce MP |
290 | break; |
291 | case TOUCH_STATE_DRAG: | |
c0426688 CD |
292 | step_x /= (64 - (int)scroll_speed) * msc->scroll_accel; |
293 | if (step_x != 0) { | |
294 | msc->touches[id].scroll_x -= step_x * | |
0b778e76 | 295 | (64 - scroll_speed) * msc->scroll_accel; |
128537ce | 296 | msc->scroll_jiffies = now; |
c0426688 CD |
297 | input_report_rel(input, REL_HWHEEL, -step_x); |
298 | } | |
299 | ||
300 | step_y /= (64 - (int)scroll_speed) * msc->scroll_accel; | |
301 | if (step_y != 0) { | |
302 | msc->touches[id].scroll_y -= step_y * | |
303 | (64 - scroll_speed) * msc->scroll_accel; | |
304 | msc->scroll_jiffies = now; | |
305 | input_report_rel(input, REL_WHEEL, step_y); | |
128537ce | 306 | } |
d4b9f10a | 307 | |
9d60648c JE |
308 | if (!msc->touches[id].scroll_x_active && |
309 | abs(step_x_hr) > SCROLL_HR_THRESHOLD) { | |
310 | msc->touches[id].scroll_x_active = true; | |
311 | msc->touches[id].scroll_x_hr = x; | |
312 | step_x_hr = 0; | |
313 | } | |
314 | ||
d4b9f10a | 315 | step_x_hr /= step_hr; |
9d60648c JE |
316 | if (step_x_hr != 0 && |
317 | msc->touches[id].scroll_x_active) { | |
d4b9f10a JE |
318 | msc->touches[id].scroll_x_hr -= step_x_hr * |
319 | step_hr; | |
320 | input_report_rel(input, | |
321 | REL_HWHEEL_HI_RES, | |
322 | -step_x_hr * SCROLL_HR_MULT); | |
323 | } | |
324 | ||
9d60648c JE |
325 | if (!msc->touches[id].scroll_y_active && |
326 | abs(step_y_hr) > SCROLL_HR_THRESHOLD) { | |
327 | msc->touches[id].scroll_y_active = true; | |
328 | msc->touches[id].scroll_y_hr = y; | |
329 | step_y_hr = 0; | |
330 | } | |
331 | ||
d4b9f10a | 332 | step_y_hr /= step_hr; |
9d60648c JE |
333 | if (step_y_hr != 0 && |
334 | msc->touches[id].scroll_y_active) { | |
d4b9f10a JE |
335 | msc->touches[id].scroll_y_hr -= step_y_hr * |
336 | step_hr; | |
337 | input_report_rel(input, | |
338 | REL_WHEEL_HI_RES, | |
339 | step_y_hr * SCROLL_HR_MULT); | |
340 | } | |
128537ce MP |
341 | break; |
342 | } | |
343 | } | |
344 | ||
a6d1bc1d | 345 | if (down) |
a462230e | 346 | msc->ntouches++; |
a6d1bc1d YS |
347 | |
348 | input_mt_slot(input, id); | |
349 | input_mt_report_slot_state(input, MT_TOOL_FINGER, down); | |
a462230e | 350 | |
128537ce | 351 | /* Generate the input events for this touch. */ |
6264307e | 352 | if (down) { |
921990b7 HR |
353 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2); |
354 | input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2); | |
2d9ca4e9 | 355 | input_report_abs(input, ABS_MT_ORIENTATION, -orientation); |
128537ce MP |
356 | input_report_abs(input, ABS_MT_POSITION_X, x); |
357 | input_report_abs(input, ABS_MT_POSITION_Y, y); | |
358 | ||
9d7b1866 SB |
359 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) |
360 | input_report_abs(input, ABS_MT_PRESSURE, pressure); | |
361 | ||
a462230e | 362 | if (report_undeciphered) { |
2b0c086c JC |
363 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE || |
364 | input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) | |
a462230e | 365 | input_event(input, EV_MSC, MSC_RAW, tdata[7]); |
9d7b1866 SB |
366 | else if (input->id.product != |
367 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) | |
a462230e CD |
368 | input_event(input, EV_MSC, MSC_RAW, tdata[8]); |
369 | } | |
128537ce MP |
370 | } |
371 | } | |
372 | ||
373 | static int magicmouse_raw_event(struct hid_device *hdev, | |
374 | struct hid_report *report, u8 *data, int size) | |
375 | { | |
376 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
377 | struct input_dev *input = msc->input; | |
a462230e | 378 | int x = 0, y = 0, ii, clicks = 0, npoints; |
128537ce MP |
379 | |
380 | switch (data[0]) { | |
a462230e | 381 | case TRACKPAD_REPORT_ID: |
9d7b1866 | 382 | case TRACKPAD2_BT_REPORT_ID: |
a462230e CD |
383 | /* Expect four bytes of prefix, and N*9 bytes of touch data. */ |
384 | if (size < 4 || ((size - 4) % 9) != 0) | |
385 | return 0; | |
386 | npoints = (size - 4) / 9; | |
c54def7b JK |
387 | if (npoints > 15) { |
388 | hid_warn(hdev, "invalid size value (%d) for TRACKPAD_REPORT_ID\n", | |
389 | size); | |
390 | return 0; | |
391 | } | |
a462230e CD |
392 | msc->ntouches = 0; |
393 | for (ii = 0; ii < npoints; ii++) | |
394 | magicmouse_emit_touch(msc, ii, data + ii * 9 + 4); | |
395 | ||
a462230e CD |
396 | clicks = data[1]; |
397 | ||
398 | /* The following bits provide a device specific timestamp. They | |
399 | * are unused here. | |
400 | * | |
401 | * ts = data[1] >> 6 | data[2] << 2 | data[3] << 10; | |
402 | */ | |
403 | break; | |
9d7b1866 SB |
404 | case TRACKPAD2_USB_REPORT_ID: |
405 | /* Expect twelve bytes of prefix and N*9 bytes of touch data. */ | |
406 | if (size < 12 || ((size - 12) % 9) != 0) | |
407 | return 0; | |
408 | npoints = (size - 12) / 9; | |
409 | if (npoints > 15) { | |
410 | hid_warn(hdev, "invalid size value (%d) for TRACKPAD2_USB_REPORT_ID\n", | |
411 | size); | |
412 | return 0; | |
413 | } | |
414 | msc->ntouches = 0; | |
415 | for (ii = 0; ii < npoints; ii++) | |
416 | magicmouse_emit_touch(msc, ii, data + ii * 9 + 12); | |
417 | ||
418 | clicks = data[1]; | |
419 | break; | |
a462230e | 420 | case MOUSE_REPORT_ID: |
128537ce MP |
421 | /* Expect six bytes of prefix, and N*8 bytes of touch data. */ |
422 | if (size < 6 || ((size - 6) % 8) != 0) | |
423 | return 0; | |
0228db70 | 424 | npoints = (size - 6) / 8; |
c54def7b JK |
425 | if (npoints > 15) { |
426 | hid_warn(hdev, "invalid size value (%d) for MOUSE_REPORT_ID\n", | |
427 | size); | |
428 | return 0; | |
429 | } | |
0228db70 CD |
430 | msc->ntouches = 0; |
431 | for (ii = 0; ii < npoints; ii++) | |
128537ce | 432 | magicmouse_emit_touch(msc, ii, data + ii * 8 + 6); |
e3612e86 | 433 | |
128537ce MP |
434 | /* When emulating three-button mode, it is important |
435 | * to have the current touch information before | |
436 | * generating a click event. | |
437 | */ | |
7d876c05 MP |
438 | x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22; |
439 | y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22; | |
128537ce | 440 | clicks = data[3]; |
c61b7cee CD |
441 | |
442 | /* The following bits provide a device specific timestamp. They | |
443 | * are unused here. | |
444 | * | |
445 | * ts = data[3] >> 6 | data[4] << 2 | data[5] << 10; | |
446 | */ | |
128537ce | 447 | break; |
2b0c086c JC |
448 | case MOUSE2_REPORT_ID: |
449 | /* Size is either 8 or (14 + 8 * N) */ | |
450 | if (size != 8 && (size < 14 || (size - 14) % 8 != 0)) | |
451 | return 0; | |
452 | npoints = (size - 14) / 8; | |
453 | if (npoints > 15) { | |
454 | hid_warn(hdev, "invalid size value (%d) for MOUSE2_REPORT_ID\n", | |
455 | size); | |
456 | return 0; | |
457 | } | |
458 | msc->ntouches = 0; | |
459 | for (ii = 0; ii < npoints; ii++) | |
460 | magicmouse_emit_touch(msc, ii, data + ii * 8 + 14); | |
461 | ||
462 | /* When emulating three-button mode, it is important | |
463 | * to have the current touch information before | |
464 | * generating a click event. | |
465 | */ | |
466 | x = (int)((data[3] << 24) | (data[2] << 16)) >> 16; | |
467 | y = (int)((data[5] << 24) | (data[4] << 16)) >> 16; | |
468 | clicks = data[1]; | |
469 | ||
470 | /* The following bits provide a device specific timestamp. They | |
471 | * are unused here. | |
472 | * | |
473 | * ts = data[11] >> 6 | data[12] << 2 | data[13] << 10; | |
474 | */ | |
475 | break; | |
a462230e CD |
476 | case DOUBLE_REPORT_ID: |
477 | /* Sometimes the trackpad sends two touch reports in one | |
478 | * packet. | |
479 | */ | |
480 | magicmouse_raw_event(hdev, report, data + 2, data[1]); | |
481 | magicmouse_raw_event(hdev, report, data + 2 + data[1], | |
482 | size - 2 - data[1]); | |
bb5f0c85 | 483 | return 0; |
128537ce MP |
484 | default: |
485 | return 0; | |
486 | } | |
487 | ||
2b0c086c JC |
488 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE || |
489 | input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { | |
a462230e CD |
490 | magicmouse_emit_buttons(msc, clicks & 3); |
491 | input_report_rel(input, REL_X, x); | |
492 | input_report_rel(input, REL_Y, y); | |
9d7b1866 SB |
493 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
494 | input_mt_sync_frame(input); | |
495 | input_report_key(input, BTN_MOUSE, clicks & 1); | |
a462230e CD |
496 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
497 | input_report_key(input, BTN_MOUSE, clicks & 1); | |
a6d1bc1d | 498 | input_mt_report_pointer_emulation(input, true); |
a462230e CD |
499 | } |
500 | ||
128537ce MP |
501 | input_sync(input); |
502 | return 1; | |
503 | } | |
504 | ||
3dcc5f7b JC |
505 | static int magicmouse_event(struct hid_device *hdev, struct hid_field *field, |
506 | struct hid_usage *usage, __s32 value) | |
507 | { | |
508 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
509 | if (msc->input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 && | |
510 | field->report->id == MOUSE2_REPORT_ID) { | |
511 | /* | |
512 | * magic_mouse_raw_event has done all the work. Skip hidinput. | |
513 | * | |
514 | * Specifically, hidinput may modify BTN_LEFT and BTN_RIGHT, | |
515 | * breaking emulate_3button. | |
516 | */ | |
517 | return 1; | |
518 | } | |
519 | return 0; | |
520 | } | |
521 | ||
a6d1bc1d | 522 | static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev) |
128537ce | 523 | { |
a6d1bc1d | 524 | int error; |
9d7b1866 | 525 | int mt_flags = 0; |
a6d1bc1d | 526 | |
71b38bd4 | 527 | __set_bit(EV_KEY, input->evbit); |
a462230e | 528 | |
2b0c086c JC |
529 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE || |
530 | input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { | |
a462230e CD |
531 | __set_bit(BTN_LEFT, input->keybit); |
532 | __set_bit(BTN_RIGHT, input->keybit); | |
533 | if (emulate_3button) | |
534 | __set_bit(BTN_MIDDLE, input->keybit); | |
535 | ||
536 | __set_bit(EV_REL, input->evbit); | |
537 | __set_bit(REL_X, input->relbit); | |
538 | __set_bit(REL_Y, input->relbit); | |
539 | if (emulate_scroll_wheel) { | |
540 | __set_bit(REL_WHEEL, input->relbit); | |
541 | __set_bit(REL_HWHEEL, input->relbit); | |
d4b9f10a JE |
542 | __set_bit(REL_WHEEL_HI_RES, input->relbit); |
543 | __set_bit(REL_HWHEEL_HI_RES, input->relbit); | |
a462230e | 544 | } |
9d7b1866 | 545 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
0aa45fcc JE |
546 | /* If the trackpad has been connected to a Mac, the name is |
547 | * automatically personalized, e.g., "José Expósito's Trackpad". | |
548 | * When connected through Bluetooth, the personalized name is | |
549 | * reported, however, when connected through USB the generic | |
550 | * name is reported. | |
551 | * Set the device name to ensure the same driver settings get | |
552 | * loaded, whether connected through bluetooth or USB. | |
9d7b1866 | 553 | */ |
5768701e JE |
554 | if (hdev->vendor == BT_VENDOR_ID_APPLE) { |
555 | if (input->id.version == TRACKPAD2_2021_BT_VERSION) | |
556 | input->name = "Apple Inc. Magic Trackpad"; | |
557 | else | |
558 | input->name = "Apple Inc. Magic Trackpad 2"; | |
559 | } else { /* USB_VENDOR_ID_APPLE */ | |
0aa45fcc | 560 | input->name = hdev->name; |
5768701e | 561 | } |
9d7b1866 SB |
562 | |
563 | __clear_bit(EV_MSC, input->evbit); | |
564 | __clear_bit(BTN_0, input->keybit); | |
565 | __clear_bit(BTN_RIGHT, input->keybit); | |
566 | __clear_bit(BTN_MIDDLE, input->keybit); | |
567 | __set_bit(BTN_MOUSE, input->keybit); | |
568 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); | |
569 | __set_bit(BTN_TOOL_FINGER, input->keybit); | |
570 | ||
571 | mt_flags = INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | | |
572 | INPUT_MT_TRACK; | |
a462230e | 573 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
bca62142 DV |
574 | /* input->keybit is initialized with incorrect button info |
575 | * for Magic Trackpad. There really is only one physical | |
576 | * button (BTN_LEFT == BTN_MOUSE). Make sure we don't | |
577 | * advertise buttons that don't exist... | |
578 | */ | |
579 | __clear_bit(BTN_RIGHT, input->keybit); | |
580 | __clear_bit(BTN_MIDDLE, input->keybit); | |
a462230e | 581 | __set_bit(BTN_MOUSE, input->keybit); |
53145c2e DS |
582 | __set_bit(BTN_TOOL_FINGER, input->keybit); |
583 | __set_bit(BTN_TOOL_DOUBLETAP, input->keybit); | |
584 | __set_bit(BTN_TOOL_TRIPLETAP, input->keybit); | |
585 | __set_bit(BTN_TOOL_QUADTAP, input->keybit); | |
586 | __set_bit(BTN_TOOL_QUINTTAP, input->keybit); | |
587 | __set_bit(BTN_TOUCH, input->keybit); | |
588 | __set_bit(INPUT_PROP_POINTER, input->propbit); | |
503f7d53 | 589 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
c0426688 | 590 | } |
128537ce | 591 | |
cc5e0f08 | 592 | |
6264307e YS |
593 | __set_bit(EV_ABS, input->evbit); |
594 | ||
9d7b1866 | 595 | error = input_mt_init_slots(input, 16, mt_flags); |
a6d1bc1d YS |
596 | if (error) |
597 | return error; | |
6264307e YS |
598 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255 << 2, |
599 | 4, 0); | |
600 | input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255 << 2, | |
601 | 4, 0); | |
6264307e YS |
602 | |
603 | /* Note: Touch Y position from the device is inverted relative | |
604 | * to how pointer motion is reported (and relative to how USB | |
605 | * HID recommends the coordinates work). This driver keeps | |
606 | * the origin at the same position, and just uses the additive | |
607 | * inverse of the reported Y. | |
608 | */ | |
2b0c086c JC |
609 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE || |
610 | input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { | |
9d7b1866 | 611 | input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0); |
6264307e YS |
612 | input_set_abs_params(input, ABS_MT_POSITION_X, |
613 | MOUSE_MIN_X, MOUSE_MAX_X, 4, 0); | |
614 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
615 | MOUSE_MIN_Y, MOUSE_MAX_Y, 4, 0); | |
616 | ||
617 | input_abs_set_res(input, ABS_MT_POSITION_X, | |
618 | MOUSE_RES_X); | |
619 | input_abs_set_res(input, ABS_MT_POSITION_Y, | |
620 | MOUSE_RES_Y); | |
9d7b1866 SB |
621 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
622 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 253, 0, 0); | |
623 | input_set_abs_params(input, ABS_PRESSURE, 0, 253, 0, 0); | |
624 | input_set_abs_params(input, ABS_MT_ORIENTATION, -3, 4, 0, 0); | |
625 | input_set_abs_params(input, ABS_X, TRACKPAD2_MIN_X, | |
626 | TRACKPAD2_MAX_X, 0, 0); | |
627 | input_set_abs_params(input, ABS_Y, TRACKPAD2_MIN_Y, | |
628 | TRACKPAD2_MAX_Y, 0, 0); | |
629 | input_set_abs_params(input, ABS_MT_POSITION_X, | |
630 | TRACKPAD2_MIN_X, TRACKPAD2_MAX_X, 0, 0); | |
631 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
632 | TRACKPAD2_MIN_Y, TRACKPAD2_MAX_Y, 0, 0); | |
633 | ||
634 | input_abs_set_res(input, ABS_X, TRACKPAD2_RES_X); | |
635 | input_abs_set_res(input, ABS_Y, TRACKPAD2_RES_Y); | |
636 | input_abs_set_res(input, ABS_MT_POSITION_X, TRACKPAD2_RES_X); | |
637 | input_abs_set_res(input, ABS_MT_POSITION_Y, TRACKPAD2_RES_Y); | |
6264307e | 638 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
9d7b1866 | 639 | input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0); |
6264307e YS |
640 | input_set_abs_params(input, ABS_X, TRACKPAD_MIN_X, |
641 | TRACKPAD_MAX_X, 4, 0); | |
642 | input_set_abs_params(input, ABS_Y, TRACKPAD_MIN_Y, | |
643 | TRACKPAD_MAX_Y, 4, 0); | |
644 | input_set_abs_params(input, ABS_MT_POSITION_X, | |
645 | TRACKPAD_MIN_X, TRACKPAD_MAX_X, 4, 0); | |
646 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
647 | TRACKPAD_MIN_Y, TRACKPAD_MAX_Y, 4, 0); | |
648 | ||
649 | input_abs_set_res(input, ABS_X, TRACKPAD_RES_X); | |
650 | input_abs_set_res(input, ABS_Y, TRACKPAD_RES_Y); | |
651 | input_abs_set_res(input, ABS_MT_POSITION_X, | |
652 | TRACKPAD_RES_X); | |
653 | input_abs_set_res(input, ABS_MT_POSITION_Y, | |
654 | TRACKPAD_RES_Y); | |
128537ce MP |
655 | } |
656 | ||
6264307e YS |
657 | input_set_events_per_packet(input, 60); |
658 | ||
9d7b1866 SB |
659 | if (report_undeciphered && |
660 | input->id.product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { | |
71b38bd4 MP |
661 | __set_bit(EV_MSC, input->evbit); |
662 | __set_bit(MSC_RAW, input->mscbit); | |
128537ce | 663 | } |
a6d1bc1d | 664 | |
6363d206 DT |
665 | /* |
666 | * hid-input may mark device as using autorepeat, but neither | |
667 | * the trackpad, nor the mouse actually want it. | |
668 | */ | |
669 | __clear_bit(EV_REP, input->evbit); | |
670 | ||
a6d1bc1d | 671 | return 0; |
128537ce MP |
672 | } |
673 | ||
64eb105d MP |
674 | static int magicmouse_input_mapping(struct hid_device *hdev, |
675 | struct hid_input *hi, struct hid_field *field, | |
676 | struct hid_usage *usage, unsigned long **bit, int *max) | |
677 | { | |
678 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
679 | ||
680 | if (!msc->input) | |
681 | msc->input = hi->input; | |
682 | ||
6a66bbd6 | 683 | /* Magic Trackpad does not give relative data after switching to MT */ |
9d7b1866 SB |
684 | if ((hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD || |
685 | hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) && | |
6a66bbd6 CD |
686 | field->flags & HID_MAIN_ITEM_RELATIVE) |
687 | return -1; | |
688 | ||
64eb105d MP |
689 | return 0; |
690 | } | |
691 | ||
9154301a | 692 | static int magicmouse_input_configured(struct hid_device *hdev, |
f1a9a149 BT |
693 | struct hid_input *hi) |
694 | ||
695 | { | |
696 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
9154301a | 697 | int ret; |
f1a9a149 | 698 | |
9154301a | 699 | ret = magicmouse_setup_input(msc->input, hdev); |
f1a9a149 BT |
700 | if (ret) { |
701 | hid_err(hdev, "magicmouse setup input failed (%d)\n", ret); | |
702 | /* clean msc->input to notify probe() of the failure */ | |
703 | msc->input = NULL; | |
9154301a | 704 | return ret; |
f1a9a149 | 705 | } |
9154301a DT |
706 | |
707 | return 0; | |
f1a9a149 BT |
708 | } |
709 | ||
c0dc5582 | 710 | static int magicmouse_enable_multitouch(struct hid_device *hdev) |
128537ce | 711 | { |
9d7b1866 SB |
712 | const u8 *feature; |
713 | const u8 feature_mt[] = { 0xD7, 0x01 }; | |
2b0c086c | 714 | const u8 feature_mt_mouse2[] = { 0xF1, 0x02, 0x01 }; |
9d7b1866 SB |
715 | const u8 feature_mt_trackpad2_usb[] = { 0x02, 0x01 }; |
716 | const u8 feature_mt_trackpad2_bt[] = { 0xF1, 0x02, 0x01 }; | |
b7a87ad6 | 717 | u8 *buf; |
c0dc5582 JC |
718 | int ret; |
719 | int feature_size; | |
720 | ||
721 | if (hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { | |
722 | if (hdev->vendor == BT_VENDOR_ID_APPLE) { | |
723 | feature_size = sizeof(feature_mt_trackpad2_bt); | |
724 | feature = feature_mt_trackpad2_bt; | |
725 | } else { /* USB_VENDOR_ID_APPLE */ | |
726 | feature_size = sizeof(feature_mt_trackpad2_usb); | |
727 | feature = feature_mt_trackpad2_usb; | |
728 | } | |
729 | } else if (hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { | |
730 | feature_size = sizeof(feature_mt_mouse2); | |
731 | feature = feature_mt_mouse2; | |
732 | } else { | |
733 | feature_size = sizeof(feature_mt); | |
734 | feature = feature_mt; | |
735 | } | |
736 | ||
737 | buf = kmemdup(feature, feature_size, GFP_KERNEL); | |
738 | if (!buf) | |
739 | return -ENOMEM; | |
740 | ||
741 | ret = hid_hw_raw_request(hdev, buf[0], buf, feature_size, | |
742 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
743 | kfree(buf); | |
744 | return ret; | |
745 | } | |
746 | ||
747 | static void magicmouse_enable_mt_work(struct work_struct *work) | |
748 | { | |
749 | struct magicmouse_sc *msc = | |
750 | container_of(work, struct magicmouse_sc, work.work); | |
751 | int ret; | |
752 | ||
753 | ret = magicmouse_enable_multitouch(msc->hdev); | |
754 | if (ret < 0) | |
755 | hid_err(msc->hdev, "unable to request touch data (%d)\n", ret); | |
756 | } | |
757 | ||
0b91b4e4 JE |
758 | static int magicmouse_fetch_battery(struct hid_device *hdev) |
759 | { | |
760 | #ifdef CONFIG_HID_BATTERY_STRENGTH | |
761 | struct hid_report_enum *report_enum; | |
762 | struct hid_report *report; | |
763 | ||
764 | if (!hdev->battery || hdev->vendor != USB_VENDOR_ID_APPLE || | |
765 | (hdev->product != USB_DEVICE_ID_APPLE_MAGICMOUSE2 && | |
766 | hdev->product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)) | |
767 | return -1; | |
768 | ||
769 | report_enum = &hdev->report_enum[hdev->battery_report_type]; | |
770 | report = report_enum->report_id_hash[hdev->battery_report_id]; | |
771 | ||
772 | if (!report || report->maxfield < 1) | |
773 | return -1; | |
774 | ||
775 | if (hdev->battery_capacity == hdev->battery_max) | |
776 | return -1; | |
777 | ||
778 | hid_hw_request(hdev, report, HID_REQ_GET_REPORT); | |
779 | return 0; | |
780 | #else | |
781 | return -1; | |
782 | #endif | |
783 | } | |
784 | ||
785 | static void magicmouse_battery_timer_tick(struct timer_list *t) | |
786 | { | |
787 | struct magicmouse_sc *msc = from_timer(msc, t, battery_timer); | |
788 | struct hid_device *hdev = msc->hdev; | |
789 | ||
790 | if (magicmouse_fetch_battery(hdev) == 0) { | |
791 | mod_timer(&msc->battery_timer, | |
792 | jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS)); | |
793 | } | |
794 | } | |
795 | ||
c0dc5582 JC |
796 | static int magicmouse_probe(struct hid_device *hdev, |
797 | const struct hid_device_id *id) | |
798 | { | |
128537ce MP |
799 | struct magicmouse_sc *msc; |
800 | struct hid_report *report; | |
801 | int ret; | |
9d7b1866 | 802 | |
abf832bf | 803 | msc = devm_kzalloc(&hdev->dev, sizeof(*msc), GFP_KERNEL); |
128537ce | 804 | if (msc == NULL) { |
4291ee30 | 805 | hid_err(hdev, "can't alloc magicmouse descriptor\n"); |
128537ce MP |
806 | return -ENOMEM; |
807 | } | |
808 | ||
0b778e76 | 809 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
c0dc5582 JC |
810 | msc->hdev = hdev; |
811 | INIT_DEFERRABLE_WORK(&msc->work, magicmouse_enable_mt_work); | |
0b778e76 | 812 | |
128537ce MP |
813 | msc->quirks = id->driver_data; |
814 | hid_set_drvdata(hdev, msc); | |
815 | ||
816 | ret = hid_parse(hdev); | |
817 | if (ret) { | |
4291ee30 | 818 | hid_err(hdev, "magicmouse hid parse failed\n"); |
abf832bf | 819 | return ret; |
128537ce MP |
820 | } |
821 | ||
23d02116 | 822 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
128537ce | 823 | if (ret) { |
4291ee30 | 824 | hid_err(hdev, "magicmouse hw start failed\n"); |
abf832bf | 825 | return ret; |
128537ce MP |
826 | } |
827 | ||
0b91b4e4 JE |
828 | timer_setup(&msc->battery_timer, magicmouse_battery_timer_tick, 0); |
829 | mod_timer(&msc->battery_timer, | |
830 | jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS)); | |
831 | magicmouse_fetch_battery(hdev); | |
832 | ||
833 | if (id->vendor == USB_VENDOR_ID_APPLE && | |
834 | (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 || | |
835 | (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 && hdev->type != HID_TYPE_USBMOUSE))) | |
836 | return 0; | |
837 | ||
f1a9a149 BT |
838 | if (!msc->input) { |
839 | hid_err(hdev, "magicmouse input not registered\n"); | |
840 | ret = -ENOMEM; | |
841 | goto err_stop_hw; | |
a6d1bc1d | 842 | } |
23d02116 | 843 | |
a462230e CD |
844 | if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE) |
845 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
f07b3c1d | 846 | MOUSE_REPORT_ID, 0); |
2b0c086c JC |
847 | else if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) |
848 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
849 | MOUSE2_REPORT_ID, 0); | |
9d7b1866 SB |
850 | else if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
851 | if (id->vendor == BT_VENDOR_ID_APPLE) | |
852 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
853 | TRACKPAD2_BT_REPORT_ID, 0); | |
854 | else /* USB_VENDOR_ID_APPLE */ | |
855 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
856 | TRACKPAD2_USB_REPORT_ID, 0); | |
857 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
a462230e | 858 | report = hid_register_report(hdev, HID_INPUT_REPORT, |
f07b3c1d | 859 | TRACKPAD_REPORT_ID, 0); |
a462230e | 860 | report = hid_register_report(hdev, HID_INPUT_REPORT, |
f07b3c1d | 861 | DOUBLE_REPORT_ID, 0); |
a462230e CD |
862 | } |
863 | ||
128537ce | 864 | if (!report) { |
4291ee30 | 865 | hid_err(hdev, "unable to register touch report\n"); |
128537ce | 866 | ret = -ENOMEM; |
71b38bd4 | 867 | goto err_stop_hw; |
128537ce MP |
868 | } |
869 | report->size = 6; | |
870 | ||
35d851df JK |
871 | /* |
872 | * Some devices repond with 'invalid report id' when feature | |
873 | * report switching it into multitouch mode is sent to it. | |
874 | * | |
875 | * This results in -EIO from the _raw low-level transport callback, | |
876 | * but there seems to be no other way of switching the mode. | |
877 | * Thus the super-ugly hacky success check below. | |
878 | */ | |
c0dc5582 JC |
879 | ret = magicmouse_enable_multitouch(hdev); |
880 | if (ret != -EIO && ret < 0) { | |
4291ee30 | 881 | hid_err(hdev, "unable to request touch data (%d)\n", ret); |
71b38bd4 | 882 | goto err_stop_hw; |
128537ce | 883 | } |
c0dc5582 JC |
884 | if (ret == -EIO && id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) { |
885 | schedule_delayed_work(&msc->work, msecs_to_jiffies(500)); | |
886 | } | |
128537ce | 887 | |
128537ce | 888 | return 0; |
71b38bd4 | 889 | err_stop_hw: |
33812fc7 | 890 | del_timer_sync(&msc->battery_timer); |
71b38bd4 | 891 | hid_hw_stop(hdev); |
128537ce MP |
892 | return ret; |
893 | } | |
894 | ||
c0dc5582 JC |
895 | static void magicmouse_remove(struct hid_device *hdev) |
896 | { | |
897 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
4fb12519 | 898 | |
0b91b4e4 | 899 | if (msc) { |
4fb12519 | 900 | cancel_delayed_work_sync(&msc->work); |
0b91b4e4 JE |
901 | del_timer_sync(&msc->battery_timer); |
902 | } | |
4fb12519 | 903 | |
c0dc5582 JC |
904 | hid_hw_stop(hdev); |
905 | } | |
906 | ||
0b91b4e4 JE |
907 | static __u8 *magicmouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
908 | unsigned int *rsize) | |
909 | { | |
910 | /* | |
911 | * Change the usage from: | |
912 | * 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1) 0 | |
913 | * 0x09, 0x0b, // Usage (Vendor Usage 0x0b) 3 | |
914 | * To: | |
915 | * 0x05, 0x01, // Usage Page (Generic Desktop) 0 | |
916 | * 0x09, 0x02, // Usage (Mouse) 2 | |
917 | */ | |
918 | if (hdev->vendor == USB_VENDOR_ID_APPLE && | |
919 | (hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 || | |
920 | hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) && | |
921 | *rsize == 83 && rdesc[46] == 0x84 && rdesc[58] == 0x85) { | |
922 | hid_info(hdev, | |
923 | "fixing up magicmouse battery report descriptor\n"); | |
924 | *rsize = *rsize - 1; | |
925 | rdesc = kmemdup(rdesc + 1, *rsize, GFP_KERNEL); | |
926 | if (!rdesc) | |
927 | return NULL; | |
928 | ||
929 | rdesc[0] = 0x05; | |
930 | rdesc[1] = 0x01; | |
931 | rdesc[2] = 0x09; | |
932 | rdesc[3] = 0x02; | |
933 | } | |
934 | ||
935 | return rdesc; | |
936 | } | |
937 | ||
128537ce | 938 | static const struct hid_device_id magic_mice[] = { |
a462230e CD |
939 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, |
940 | USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 }, | |
2b0c086c JC |
941 | { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, |
942 | USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 }, | |
0b91b4e4 JE |
943 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, |
944 | USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 }, | |
a462230e CD |
945 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, |
946 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 }, | |
9d7b1866 SB |
947 | { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, |
948 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 }, | |
949 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, | |
950 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 }, | |
128537ce MP |
951 | { } |
952 | }; | |
953 | MODULE_DEVICE_TABLE(hid, magic_mice); | |
954 | ||
955 | static struct hid_driver magicmouse_driver = { | |
956 | .name = "magicmouse", | |
957 | .id_table = magic_mice, | |
958 | .probe = magicmouse_probe, | |
c0dc5582 | 959 | .remove = magicmouse_remove, |
0b91b4e4 | 960 | .report_fixup = magicmouse_report_fixup, |
128537ce | 961 | .raw_event = magicmouse_raw_event, |
3dcc5f7b | 962 | .event = magicmouse_event, |
64eb105d | 963 | .input_mapping = magicmouse_input_mapping, |
f1a9a149 | 964 | .input_configured = magicmouse_input_configured, |
128537ce | 965 | }; |
f425458e | 966 | module_hid_driver(magicmouse_driver); |
128537ce | 967 | |
128537ce | 968 | MODULE_LICENSE("GPL"); |