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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> |
128537ce MP |
19 | |
20 | #include "hid-ids.h" | |
21 | ||
71b38bd4 | 22 | static bool emulate_3button = true; |
128537ce MP |
23 | module_param(emulate_3button, bool, 0644); |
24 | MODULE_PARM_DESC(emulate_3button, "Emulate a middle button"); | |
25 | ||
26 | static int middle_button_start = -350; | |
27 | static int middle_button_stop = +350; | |
28 | ||
71b38bd4 | 29 | static bool emulate_scroll_wheel = true; |
128537ce MP |
30 | module_param(emulate_scroll_wheel, bool, 0644); |
31 | MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel"); | |
32 | ||
0b778e76 | 33 | static unsigned int scroll_speed = 32; |
e4dca7b7 KC |
34 | static int param_set_scroll_speed(const char *val, |
35 | const struct kernel_param *kp) { | |
0b778e76 | 36 | unsigned long speed; |
dfc450b5 | 37 | if (!val || kstrtoul(val, 0, &speed) || speed > 63) |
0b778e76 CD |
38 | return -EINVAL; |
39 | scroll_speed = speed; | |
40 | return 0; | |
41 | } | |
42 | module_param_call(scroll_speed, param_set_scroll_speed, param_get_uint, &scroll_speed, 0644); | |
43 | MODULE_PARM_DESC(scroll_speed, "Scroll speed, value from 0 (slow) to 63 (fast)"); | |
44 | ||
9846f350 CD |
45 | static bool scroll_acceleration = false; |
46 | module_param(scroll_acceleration, bool, 0644); | |
47 | MODULE_PARM_DESC(scroll_acceleration, "Accelerate sequential scroll events"); | |
48 | ||
71b38bd4 | 49 | static bool report_undeciphered; |
128537ce MP |
50 | module_param(report_undeciphered, bool, 0644); |
51 | MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event"); | |
52 | ||
a462230e | 53 | #define TRACKPAD_REPORT_ID 0x28 |
9d7b1866 SB |
54 | #define TRACKPAD2_USB_REPORT_ID 0x02 |
55 | #define TRACKPAD2_BT_REPORT_ID 0x31 | |
a462230e CD |
56 | #define MOUSE_REPORT_ID 0x29 |
57 | #define DOUBLE_REPORT_ID 0xf7 | |
128537ce MP |
58 | /* These definitions are not precise, but they're close enough. (Bits |
59 | * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem | |
60 | * to be some kind of bit mask -- 0x20 may be a near-field reading, | |
61 | * and 0x40 is actual contact, and 0x10 may be a start/stop or change | |
62 | * indication.) | |
63 | */ | |
64 | #define TOUCH_STATE_MASK 0xf0 | |
65 | #define TOUCH_STATE_NONE 0x00 | |
66 | #define TOUCH_STATE_START 0x30 | |
67 | #define TOUCH_STATE_DRAG 0x40 | |
68 | ||
0b778e76 CD |
69 | #define SCROLL_ACCEL_DEFAULT 7 |
70 | ||
4f6fdf08 CD |
71 | /* Touch surface information. Dimension is in hundredths of a mm, min and max |
72 | * are in units. */ | |
73 | #define MOUSE_DIMENSION_X (float)9056 | |
74 | #define MOUSE_MIN_X -1100 | |
75 | #define MOUSE_MAX_X 1258 | |
76 | #define MOUSE_RES_X ((MOUSE_MAX_X - MOUSE_MIN_X) / (MOUSE_DIMENSION_X / 100)) | |
77 | #define MOUSE_DIMENSION_Y (float)5152 | |
78 | #define MOUSE_MIN_Y -1589 | |
79 | #define MOUSE_MAX_Y 2047 | |
80 | #define MOUSE_RES_Y ((MOUSE_MAX_Y - MOUSE_MIN_Y) / (MOUSE_DIMENSION_Y / 100)) | |
81 | ||
82 | #define TRACKPAD_DIMENSION_X (float)13000 | |
83 | #define TRACKPAD_MIN_X -2909 | |
84 | #define TRACKPAD_MAX_X 3167 | |
85 | #define TRACKPAD_RES_X \ | |
86 | ((TRACKPAD_MAX_X - TRACKPAD_MIN_X) / (TRACKPAD_DIMENSION_X / 100)) | |
87 | #define TRACKPAD_DIMENSION_Y (float)11000 | |
88 | #define TRACKPAD_MIN_Y -2456 | |
89 | #define TRACKPAD_MAX_Y 2565 | |
90 | #define TRACKPAD_RES_Y \ | |
91 | ((TRACKPAD_MAX_Y - TRACKPAD_MIN_Y) / (TRACKPAD_DIMENSION_Y / 100)) | |
92 | ||
9d7b1866 SB |
93 | #define TRACKPAD2_DIMENSION_X (float)16000 |
94 | #define TRACKPAD2_MIN_X -3678 | |
95 | #define TRACKPAD2_MAX_X 3934 | |
96 | #define TRACKPAD2_RES_X \ | |
97 | ((TRACKPAD2_MAX_X - TRACKPAD2_MIN_X) / (TRACKPAD2_DIMENSION_X / 100)) | |
98 | #define TRACKPAD2_DIMENSION_Y (float)11490 | |
99 | #define TRACKPAD2_MIN_Y -2478 | |
100 | #define TRACKPAD2_MAX_Y 2587 | |
101 | #define TRACKPAD2_RES_Y \ | |
102 | ((TRACKPAD2_MAX_Y - TRACKPAD2_MIN_Y) / (TRACKPAD2_DIMENSION_Y / 100)) | |
103 | ||
128537ce MP |
104 | /** |
105 | * struct magicmouse_sc - Tracks Magic Mouse-specific data. | |
106 | * @input: Input device through which we report events. | |
107 | * @quirks: Currently unused. | |
128537ce MP |
108 | * @ntouches: Number of touches in most recent touch report. |
109 | * @scroll_accel: Number of consecutive scroll motions. | |
110 | * @scroll_jiffies: Time of last scroll motion. | |
111 | * @touches: Most recent data for a touch, indexed by tracking ID. | |
112 | * @tracking_ids: Mapping of current touch input data to @touches. | |
113 | */ | |
114 | struct magicmouse_sc { | |
115 | struct input_dev *input; | |
116 | unsigned long quirks; | |
117 | ||
128537ce MP |
118 | int ntouches; |
119 | int scroll_accel; | |
120 | unsigned long scroll_jiffies; | |
121 | ||
122 | struct { | |
123 | short x; | |
124 | short y; | |
c0426688 | 125 | short scroll_x; |
128537ce MP |
126 | short scroll_y; |
127 | u8 size; | |
128 | } touches[16]; | |
129 | int tracking_ids[16]; | |
130 | }; | |
131 | ||
132 | static int magicmouse_firm_touch(struct magicmouse_sc *msc) | |
133 | { | |
134 | int touch = -1; | |
135 | int ii; | |
136 | ||
137 | /* If there is only one "firm" touch, set touch to its | |
138 | * tracking ID. | |
139 | */ | |
140 | for (ii = 0; ii < msc->ntouches; ii++) { | |
141 | int idx = msc->tracking_ids[ii]; | |
142 | if (msc->touches[idx].size < 8) { | |
143 | /* Ignore this touch. */ | |
144 | } else if (touch >= 0) { | |
145 | touch = -1; | |
146 | break; | |
147 | } else { | |
148 | touch = idx; | |
149 | } | |
150 | } | |
151 | ||
152 | return touch; | |
153 | } | |
154 | ||
155 | static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state) | |
156 | { | |
71b38bd4 MP |
157 | int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 | |
158 | test_bit(BTN_RIGHT, msc->input->key) << 1 | | |
159 | test_bit(BTN_MIDDLE, msc->input->key) << 2; | |
128537ce MP |
160 | |
161 | if (emulate_3button) { | |
162 | int id; | |
163 | ||
164 | /* If some button was pressed before, keep it held | |
165 | * down. Otherwise, if there's exactly one firm | |
166 | * touch, use that to override the mouse's guess. | |
167 | */ | |
168 | if (state == 0) { | |
169 | /* The button was released. */ | |
170 | } else if (last_state != 0) { | |
171 | state = last_state; | |
172 | } else if ((id = magicmouse_firm_touch(msc)) >= 0) { | |
173 | int x = msc->touches[id].x; | |
174 | if (x < middle_button_start) | |
175 | state = 1; | |
176 | else if (x > middle_button_stop) | |
177 | state = 2; | |
178 | else | |
179 | state = 4; | |
180 | } /* else: we keep the mouse's guess */ | |
181 | ||
182 | input_report_key(msc->input, BTN_MIDDLE, state & 4); | |
183 | } | |
184 | ||
185 | input_report_key(msc->input, BTN_LEFT, state & 1); | |
186 | input_report_key(msc->input, BTN_RIGHT, state & 2); | |
187 | ||
188 | if (state != last_state) | |
0b778e76 | 189 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
128537ce MP |
190 | } |
191 | ||
192 | static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata) | |
193 | { | |
194 | struct input_dev *input = msc->input; | |
a462230e | 195 | int id, x, y, size, orientation, touch_major, touch_minor, state, down; |
9d7b1866 | 196 | int pressure = 0; |
a462230e CD |
197 | |
198 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { | |
199 | id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf; | |
200 | x = (tdata[1] << 28 | tdata[0] << 20) >> 20; | |
201 | y = -((tdata[2] << 24 | tdata[1] << 16) >> 20); | |
202 | size = tdata[5] & 0x3f; | |
203 | orientation = (tdata[6] >> 2) - 32; | |
204 | touch_major = tdata[3]; | |
205 | touch_minor = tdata[4]; | |
206 | state = tdata[7] & TOUCH_STATE_MASK; | |
207 | down = state != TOUCH_STATE_NONE; | |
9d7b1866 SB |
208 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
209 | id = tdata[8] & 0xf; | |
210 | x = (tdata[1] << 27 | tdata[0] << 19) >> 19; | |
211 | y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19); | |
212 | size = tdata[6]; | |
213 | orientation = (tdata[8] >> 5) - 4; | |
214 | touch_major = tdata[4]; | |
215 | touch_minor = tdata[5]; | |
216 | pressure = tdata[7]; | |
217 | state = tdata[3] & 0xC0; | |
218 | down = state == 0x80; | |
a462230e CD |
219 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
220 | id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf; | |
221 | x = (tdata[1] << 27 | tdata[0] << 19) >> 19; | |
222 | y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19); | |
223 | size = tdata[6] & 0x3f; | |
224 | orientation = (tdata[7] >> 2) - 32; | |
225 | touch_major = tdata[4]; | |
226 | touch_minor = tdata[5]; | |
227 | state = tdata[8] & TOUCH_STATE_MASK; | |
228 | down = state != TOUCH_STATE_NONE; | |
229 | } | |
128537ce MP |
230 | |
231 | /* Store tracking ID and other fields. */ | |
232 | msc->tracking_ids[raw_id] = id; | |
233 | msc->touches[id].x = x; | |
234 | msc->touches[id].y = y; | |
6de048bf | 235 | msc->touches[id].size = size; |
128537ce MP |
236 | |
237 | /* If requested, emulate a scroll wheel by detecting small | |
ef566d30 | 238 | * vertical touch motions. |
128537ce | 239 | */ |
9d7b1866 SB |
240 | if (emulate_scroll_wheel && (input->id.product != |
241 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)) { | |
128537ce | 242 | unsigned long now = jiffies; |
c0426688 CD |
243 | int step_x = msc->touches[id].scroll_x - x; |
244 | int step_y = msc->touches[id].scroll_y - y; | |
128537ce | 245 | |
128537ce | 246 | /* Calculate and apply the scroll motion. */ |
6de048bf | 247 | switch (state) { |
128537ce | 248 | case TOUCH_STATE_START: |
c0426688 | 249 | msc->touches[id].scroll_x = x; |
128537ce | 250 | msc->touches[id].scroll_y = y; |
0b778e76 CD |
251 | |
252 | /* Reset acceleration after half a second. */ | |
253 | if (scroll_acceleration && time_before(now, | |
254 | msc->scroll_jiffies + HZ / 2)) | |
255 | msc->scroll_accel = max_t(int, | |
256 | msc->scroll_accel - 1, 1); | |
257 | else | |
258 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; | |
259 | ||
128537ce MP |
260 | break; |
261 | case TOUCH_STATE_DRAG: | |
c0426688 CD |
262 | step_x /= (64 - (int)scroll_speed) * msc->scroll_accel; |
263 | if (step_x != 0) { | |
264 | msc->touches[id].scroll_x -= step_x * | |
0b778e76 | 265 | (64 - scroll_speed) * msc->scroll_accel; |
128537ce | 266 | msc->scroll_jiffies = now; |
c0426688 CD |
267 | input_report_rel(input, REL_HWHEEL, -step_x); |
268 | } | |
269 | ||
270 | step_y /= (64 - (int)scroll_speed) * msc->scroll_accel; | |
271 | if (step_y != 0) { | |
272 | msc->touches[id].scroll_y -= step_y * | |
273 | (64 - scroll_speed) * msc->scroll_accel; | |
274 | msc->scroll_jiffies = now; | |
275 | input_report_rel(input, REL_WHEEL, step_y); | |
128537ce MP |
276 | } |
277 | break; | |
278 | } | |
279 | } | |
280 | ||
a6d1bc1d | 281 | if (down) |
a462230e | 282 | msc->ntouches++; |
a6d1bc1d YS |
283 | |
284 | input_mt_slot(input, id); | |
285 | input_mt_report_slot_state(input, MT_TOOL_FINGER, down); | |
a462230e | 286 | |
128537ce | 287 | /* Generate the input events for this touch. */ |
6264307e | 288 | if (down) { |
921990b7 HR |
289 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2); |
290 | input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2); | |
2d9ca4e9 | 291 | input_report_abs(input, ABS_MT_ORIENTATION, -orientation); |
128537ce MP |
292 | input_report_abs(input, ABS_MT_POSITION_X, x); |
293 | input_report_abs(input, ABS_MT_POSITION_Y, y); | |
294 | ||
9d7b1866 SB |
295 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) |
296 | input_report_abs(input, ABS_MT_PRESSURE, pressure); | |
297 | ||
a462230e CD |
298 | if (report_undeciphered) { |
299 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) | |
300 | input_event(input, EV_MSC, MSC_RAW, tdata[7]); | |
9d7b1866 SB |
301 | else if (input->id.product != |
302 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) | |
a462230e CD |
303 | input_event(input, EV_MSC, MSC_RAW, tdata[8]); |
304 | } | |
128537ce MP |
305 | } |
306 | } | |
307 | ||
308 | static int magicmouse_raw_event(struct hid_device *hdev, | |
309 | struct hid_report *report, u8 *data, int size) | |
310 | { | |
311 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
312 | struct input_dev *input = msc->input; | |
a462230e | 313 | int x = 0, y = 0, ii, clicks = 0, npoints; |
128537ce MP |
314 | |
315 | switch (data[0]) { | |
a462230e | 316 | case TRACKPAD_REPORT_ID: |
9d7b1866 | 317 | case TRACKPAD2_BT_REPORT_ID: |
a462230e CD |
318 | /* Expect four bytes of prefix, and N*9 bytes of touch data. */ |
319 | if (size < 4 || ((size - 4) % 9) != 0) | |
320 | return 0; | |
321 | npoints = (size - 4) / 9; | |
c54def7b JK |
322 | if (npoints > 15) { |
323 | hid_warn(hdev, "invalid size value (%d) for TRACKPAD_REPORT_ID\n", | |
324 | size); | |
325 | return 0; | |
326 | } | |
a462230e CD |
327 | msc->ntouches = 0; |
328 | for (ii = 0; ii < npoints; ii++) | |
329 | magicmouse_emit_touch(msc, ii, data + ii * 9 + 4); | |
330 | ||
a462230e CD |
331 | clicks = data[1]; |
332 | ||
333 | /* The following bits provide a device specific timestamp. They | |
334 | * are unused here. | |
335 | * | |
336 | * ts = data[1] >> 6 | data[2] << 2 | data[3] << 10; | |
337 | */ | |
338 | break; | |
9d7b1866 SB |
339 | case TRACKPAD2_USB_REPORT_ID: |
340 | /* Expect twelve bytes of prefix and N*9 bytes of touch data. */ | |
341 | if (size < 12 || ((size - 12) % 9) != 0) | |
342 | return 0; | |
343 | npoints = (size - 12) / 9; | |
344 | if (npoints > 15) { | |
345 | hid_warn(hdev, "invalid size value (%d) for TRACKPAD2_USB_REPORT_ID\n", | |
346 | size); | |
347 | return 0; | |
348 | } | |
349 | msc->ntouches = 0; | |
350 | for (ii = 0; ii < npoints; ii++) | |
351 | magicmouse_emit_touch(msc, ii, data + ii * 9 + 12); | |
352 | ||
353 | clicks = data[1]; | |
354 | break; | |
a462230e | 355 | case MOUSE_REPORT_ID: |
128537ce MP |
356 | /* Expect six bytes of prefix, and N*8 bytes of touch data. */ |
357 | if (size < 6 || ((size - 6) % 8) != 0) | |
358 | return 0; | |
0228db70 | 359 | npoints = (size - 6) / 8; |
c54def7b JK |
360 | if (npoints > 15) { |
361 | hid_warn(hdev, "invalid size value (%d) for MOUSE_REPORT_ID\n", | |
362 | size); | |
363 | return 0; | |
364 | } | |
0228db70 CD |
365 | msc->ntouches = 0; |
366 | for (ii = 0; ii < npoints; ii++) | |
128537ce | 367 | magicmouse_emit_touch(msc, ii, data + ii * 8 + 6); |
e3612e86 | 368 | |
128537ce MP |
369 | /* When emulating three-button mode, it is important |
370 | * to have the current touch information before | |
371 | * generating a click event. | |
372 | */ | |
7d876c05 MP |
373 | x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22; |
374 | y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22; | |
128537ce | 375 | clicks = data[3]; |
c61b7cee CD |
376 | |
377 | /* The following bits provide a device specific timestamp. They | |
378 | * are unused here. | |
379 | * | |
380 | * ts = data[3] >> 6 | data[4] << 2 | data[5] << 10; | |
381 | */ | |
128537ce | 382 | break; |
a462230e CD |
383 | case DOUBLE_REPORT_ID: |
384 | /* Sometimes the trackpad sends two touch reports in one | |
385 | * packet. | |
386 | */ | |
387 | magicmouse_raw_event(hdev, report, data + 2, data[1]); | |
388 | magicmouse_raw_event(hdev, report, data + 2 + data[1], | |
389 | size - 2 - data[1]); | |
390 | break; | |
128537ce MP |
391 | default: |
392 | return 0; | |
393 | } | |
394 | ||
a462230e CD |
395 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { |
396 | magicmouse_emit_buttons(msc, clicks & 3); | |
397 | input_report_rel(input, REL_X, x); | |
398 | input_report_rel(input, REL_Y, y); | |
9d7b1866 SB |
399 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
400 | input_mt_sync_frame(input); | |
401 | input_report_key(input, BTN_MOUSE, clicks & 1); | |
a462230e CD |
402 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
403 | input_report_key(input, BTN_MOUSE, clicks & 1); | |
a6d1bc1d | 404 | input_mt_report_pointer_emulation(input, true); |
a462230e CD |
405 | } |
406 | ||
128537ce MP |
407 | input_sync(input); |
408 | return 1; | |
409 | } | |
410 | ||
a6d1bc1d | 411 | static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev) |
128537ce | 412 | { |
a6d1bc1d | 413 | int error; |
9d7b1866 | 414 | int mt_flags = 0; |
a6d1bc1d | 415 | |
71b38bd4 | 416 | __set_bit(EV_KEY, input->evbit); |
a462230e CD |
417 | |
418 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { | |
419 | __set_bit(BTN_LEFT, input->keybit); | |
420 | __set_bit(BTN_RIGHT, input->keybit); | |
421 | if (emulate_3button) | |
422 | __set_bit(BTN_MIDDLE, input->keybit); | |
423 | ||
424 | __set_bit(EV_REL, input->evbit); | |
425 | __set_bit(REL_X, input->relbit); | |
426 | __set_bit(REL_Y, input->relbit); | |
427 | if (emulate_scroll_wheel) { | |
428 | __set_bit(REL_WHEEL, input->relbit); | |
429 | __set_bit(REL_HWHEEL, input->relbit); | |
430 | } | |
9d7b1866 SB |
431 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
432 | /* setting the device name to ensure the same driver settings | |
433 | * get loaded, whether connected through bluetooth or USB | |
434 | */ | |
435 | input->name = "Apple Inc. Magic Trackpad 2"; | |
436 | ||
437 | __clear_bit(EV_MSC, input->evbit); | |
438 | __clear_bit(BTN_0, input->keybit); | |
439 | __clear_bit(BTN_RIGHT, input->keybit); | |
440 | __clear_bit(BTN_MIDDLE, input->keybit); | |
441 | __set_bit(BTN_MOUSE, input->keybit); | |
442 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); | |
443 | __set_bit(BTN_TOOL_FINGER, input->keybit); | |
444 | ||
445 | mt_flags = INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | | |
446 | INPUT_MT_TRACK; | |
a462230e | 447 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
bca62142 DV |
448 | /* input->keybit is initialized with incorrect button info |
449 | * for Magic Trackpad. There really is only one physical | |
450 | * button (BTN_LEFT == BTN_MOUSE). Make sure we don't | |
451 | * advertise buttons that don't exist... | |
452 | */ | |
453 | __clear_bit(BTN_RIGHT, input->keybit); | |
454 | __clear_bit(BTN_MIDDLE, input->keybit); | |
a462230e | 455 | __set_bit(BTN_MOUSE, input->keybit); |
53145c2e DS |
456 | __set_bit(BTN_TOOL_FINGER, input->keybit); |
457 | __set_bit(BTN_TOOL_DOUBLETAP, input->keybit); | |
458 | __set_bit(BTN_TOOL_TRIPLETAP, input->keybit); | |
459 | __set_bit(BTN_TOOL_QUADTAP, input->keybit); | |
460 | __set_bit(BTN_TOOL_QUINTTAP, input->keybit); | |
461 | __set_bit(BTN_TOUCH, input->keybit); | |
462 | __set_bit(INPUT_PROP_POINTER, input->propbit); | |
503f7d53 | 463 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
c0426688 | 464 | } |
128537ce | 465 | |
cc5e0f08 | 466 | |
6264307e YS |
467 | __set_bit(EV_ABS, input->evbit); |
468 | ||
9d7b1866 | 469 | error = input_mt_init_slots(input, 16, mt_flags); |
a6d1bc1d YS |
470 | if (error) |
471 | return error; | |
6264307e YS |
472 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255 << 2, |
473 | 4, 0); | |
474 | input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255 << 2, | |
475 | 4, 0); | |
6264307e YS |
476 | |
477 | /* Note: Touch Y position from the device is inverted relative | |
478 | * to how pointer motion is reported (and relative to how USB | |
479 | * HID recommends the coordinates work). This driver keeps | |
480 | * the origin at the same position, and just uses the additive | |
481 | * inverse of the reported Y. | |
482 | */ | |
483 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { | |
9d7b1866 | 484 | input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0); |
6264307e YS |
485 | input_set_abs_params(input, ABS_MT_POSITION_X, |
486 | MOUSE_MIN_X, MOUSE_MAX_X, 4, 0); | |
487 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
488 | MOUSE_MIN_Y, MOUSE_MAX_Y, 4, 0); | |
489 | ||
490 | input_abs_set_res(input, ABS_MT_POSITION_X, | |
491 | MOUSE_RES_X); | |
492 | input_abs_set_res(input, ABS_MT_POSITION_Y, | |
493 | MOUSE_RES_Y); | |
9d7b1866 SB |
494 | } else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
495 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 253, 0, 0); | |
496 | input_set_abs_params(input, ABS_PRESSURE, 0, 253, 0, 0); | |
497 | input_set_abs_params(input, ABS_MT_ORIENTATION, -3, 4, 0, 0); | |
498 | input_set_abs_params(input, ABS_X, TRACKPAD2_MIN_X, | |
499 | TRACKPAD2_MAX_X, 0, 0); | |
500 | input_set_abs_params(input, ABS_Y, TRACKPAD2_MIN_Y, | |
501 | TRACKPAD2_MAX_Y, 0, 0); | |
502 | input_set_abs_params(input, ABS_MT_POSITION_X, | |
503 | TRACKPAD2_MIN_X, TRACKPAD2_MAX_X, 0, 0); | |
504 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
505 | TRACKPAD2_MIN_Y, TRACKPAD2_MAX_Y, 0, 0); | |
506 | ||
507 | input_abs_set_res(input, ABS_X, TRACKPAD2_RES_X); | |
508 | input_abs_set_res(input, ABS_Y, TRACKPAD2_RES_Y); | |
509 | input_abs_set_res(input, ABS_MT_POSITION_X, TRACKPAD2_RES_X); | |
510 | input_abs_set_res(input, ABS_MT_POSITION_Y, TRACKPAD2_RES_Y); | |
6264307e | 511 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ |
9d7b1866 | 512 | input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0); |
6264307e YS |
513 | input_set_abs_params(input, ABS_X, TRACKPAD_MIN_X, |
514 | TRACKPAD_MAX_X, 4, 0); | |
515 | input_set_abs_params(input, ABS_Y, TRACKPAD_MIN_Y, | |
516 | TRACKPAD_MAX_Y, 4, 0); | |
517 | input_set_abs_params(input, ABS_MT_POSITION_X, | |
518 | TRACKPAD_MIN_X, TRACKPAD_MAX_X, 4, 0); | |
519 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
520 | TRACKPAD_MIN_Y, TRACKPAD_MAX_Y, 4, 0); | |
521 | ||
522 | input_abs_set_res(input, ABS_X, TRACKPAD_RES_X); | |
523 | input_abs_set_res(input, ABS_Y, TRACKPAD_RES_Y); | |
524 | input_abs_set_res(input, ABS_MT_POSITION_X, | |
525 | TRACKPAD_RES_X); | |
526 | input_abs_set_res(input, ABS_MT_POSITION_Y, | |
527 | TRACKPAD_RES_Y); | |
128537ce MP |
528 | } |
529 | ||
6264307e YS |
530 | input_set_events_per_packet(input, 60); |
531 | ||
9d7b1866 SB |
532 | if (report_undeciphered && |
533 | input->id.product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { | |
71b38bd4 MP |
534 | __set_bit(EV_MSC, input->evbit); |
535 | __set_bit(MSC_RAW, input->mscbit); | |
128537ce | 536 | } |
a6d1bc1d | 537 | |
6363d206 DT |
538 | /* |
539 | * hid-input may mark device as using autorepeat, but neither | |
540 | * the trackpad, nor the mouse actually want it. | |
541 | */ | |
542 | __clear_bit(EV_REP, input->evbit); | |
543 | ||
a6d1bc1d | 544 | return 0; |
128537ce MP |
545 | } |
546 | ||
64eb105d MP |
547 | static int magicmouse_input_mapping(struct hid_device *hdev, |
548 | struct hid_input *hi, struct hid_field *field, | |
549 | struct hid_usage *usage, unsigned long **bit, int *max) | |
550 | { | |
551 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
552 | ||
553 | if (!msc->input) | |
554 | msc->input = hi->input; | |
555 | ||
6a66bbd6 | 556 | /* Magic Trackpad does not give relative data after switching to MT */ |
9d7b1866 SB |
557 | if ((hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD || |
558 | hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) && | |
6a66bbd6 CD |
559 | field->flags & HID_MAIN_ITEM_RELATIVE) |
560 | return -1; | |
561 | ||
64eb105d MP |
562 | return 0; |
563 | } | |
564 | ||
9154301a | 565 | static int magicmouse_input_configured(struct hid_device *hdev, |
f1a9a149 BT |
566 | struct hid_input *hi) |
567 | ||
568 | { | |
569 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
9154301a | 570 | int ret; |
f1a9a149 | 571 | |
9154301a | 572 | ret = magicmouse_setup_input(msc->input, hdev); |
f1a9a149 BT |
573 | if (ret) { |
574 | hid_err(hdev, "magicmouse setup input failed (%d)\n", ret); | |
575 | /* clean msc->input to notify probe() of the failure */ | |
576 | msc->input = NULL; | |
9154301a | 577 | return ret; |
f1a9a149 | 578 | } |
9154301a DT |
579 | |
580 | return 0; | |
f1a9a149 BT |
581 | } |
582 | ||
583 | ||
128537ce MP |
584 | static int magicmouse_probe(struct hid_device *hdev, |
585 | const struct hid_device_id *id) | |
586 | { | |
9d7b1866 SB |
587 | const u8 *feature; |
588 | const u8 feature_mt[] = { 0xD7, 0x01 }; | |
589 | const u8 feature_mt_trackpad2_usb[] = { 0x02, 0x01 }; | |
590 | const u8 feature_mt_trackpad2_bt[] = { 0xF1, 0x02, 0x01 }; | |
b7a87ad6 | 591 | u8 *buf; |
128537ce MP |
592 | struct magicmouse_sc *msc; |
593 | struct hid_report *report; | |
594 | int ret; | |
9d7b1866 SB |
595 | int feature_size; |
596 | ||
597 | if (id->vendor == USB_VENDOR_ID_APPLE && | |
598 | id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 && | |
599 | hdev->type != HID_TYPE_USBMOUSE) | |
600 | return 0; | |
128537ce | 601 | |
abf832bf | 602 | msc = devm_kzalloc(&hdev->dev, sizeof(*msc), GFP_KERNEL); |
128537ce | 603 | if (msc == NULL) { |
4291ee30 | 604 | hid_err(hdev, "can't alloc magicmouse descriptor\n"); |
128537ce MP |
605 | return -ENOMEM; |
606 | } | |
607 | ||
0b778e76 CD |
608 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
609 | ||
128537ce MP |
610 | msc->quirks = id->driver_data; |
611 | hid_set_drvdata(hdev, msc); | |
612 | ||
613 | ret = hid_parse(hdev); | |
614 | if (ret) { | |
4291ee30 | 615 | hid_err(hdev, "magicmouse hid parse failed\n"); |
abf832bf | 616 | return ret; |
128537ce MP |
617 | } |
618 | ||
23d02116 | 619 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
128537ce | 620 | if (ret) { |
4291ee30 | 621 | hid_err(hdev, "magicmouse hw start failed\n"); |
abf832bf | 622 | return ret; |
128537ce MP |
623 | } |
624 | ||
f1a9a149 BT |
625 | if (!msc->input) { |
626 | hid_err(hdev, "magicmouse input not registered\n"); | |
627 | ret = -ENOMEM; | |
628 | goto err_stop_hw; | |
a6d1bc1d | 629 | } |
23d02116 | 630 | |
a462230e CD |
631 | if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE) |
632 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
f07b3c1d | 633 | MOUSE_REPORT_ID, 0); |
9d7b1866 SB |
634 | else if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
635 | if (id->vendor == BT_VENDOR_ID_APPLE) | |
636 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
637 | TRACKPAD2_BT_REPORT_ID, 0); | |
638 | else /* USB_VENDOR_ID_APPLE */ | |
639 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
640 | TRACKPAD2_USB_REPORT_ID, 0); | |
641 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
a462230e | 642 | report = hid_register_report(hdev, HID_INPUT_REPORT, |
f07b3c1d | 643 | TRACKPAD_REPORT_ID, 0); |
a462230e | 644 | report = hid_register_report(hdev, HID_INPUT_REPORT, |
f07b3c1d | 645 | DOUBLE_REPORT_ID, 0); |
a462230e CD |
646 | } |
647 | ||
128537ce | 648 | if (!report) { |
4291ee30 | 649 | hid_err(hdev, "unable to register touch report\n"); |
128537ce | 650 | ret = -ENOMEM; |
71b38bd4 | 651 | goto err_stop_hw; |
128537ce MP |
652 | } |
653 | report->size = 6; | |
654 | ||
9d7b1866 SB |
655 | if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) { |
656 | if (id->vendor == BT_VENDOR_ID_APPLE) { | |
657 | feature_size = sizeof(feature_mt_trackpad2_bt); | |
658 | feature = feature_mt_trackpad2_bt; | |
659 | } else { /* USB_VENDOR_ID_APPLE */ | |
660 | feature_size = sizeof(feature_mt_trackpad2_usb); | |
661 | feature = feature_mt_trackpad2_usb; | |
662 | } | |
663 | } else { | |
664 | feature_size = sizeof(feature_mt); | |
665 | feature = feature_mt; | |
666 | } | |
667 | ||
668 | buf = kmemdup(feature, feature_size, GFP_KERNEL); | |
b7a87ad6 BT |
669 | if (!buf) { |
670 | ret = -ENOMEM; | |
671 | goto err_stop_hw; | |
672 | } | |
673 | ||
35d851df JK |
674 | /* |
675 | * Some devices repond with 'invalid report id' when feature | |
676 | * report switching it into multitouch mode is sent to it. | |
677 | * | |
678 | * This results in -EIO from the _raw low-level transport callback, | |
679 | * but there seems to be no other way of switching the mode. | |
680 | * Thus the super-ugly hacky success check below. | |
681 | */ | |
9d7b1866 | 682 | ret = hid_hw_raw_request(hdev, buf[0], buf, feature_size, |
b0dd72aa | 683 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
b7a87ad6 | 684 | kfree(buf); |
9d7b1866 | 685 | if (ret != -EIO && ret != feature_size) { |
4291ee30 | 686 | hid_err(hdev, "unable to request touch data (%d)\n", ret); |
71b38bd4 | 687 | goto err_stop_hw; |
128537ce MP |
688 | } |
689 | ||
128537ce | 690 | return 0; |
71b38bd4 MP |
691 | err_stop_hw: |
692 | hid_hw_stop(hdev); | |
128537ce MP |
693 | return ret; |
694 | } | |
695 | ||
128537ce | 696 | static const struct hid_device_id magic_mice[] = { |
a462230e CD |
697 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, |
698 | USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 }, | |
699 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, | |
700 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 }, | |
9d7b1866 SB |
701 | { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, |
702 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 }, | |
703 | { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, | |
704 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 }, | |
128537ce MP |
705 | { } |
706 | }; | |
707 | MODULE_DEVICE_TABLE(hid, magic_mice); | |
708 | ||
709 | static struct hid_driver magicmouse_driver = { | |
710 | .name = "magicmouse", | |
711 | .id_table = magic_mice, | |
712 | .probe = magicmouse_probe, | |
128537ce | 713 | .raw_event = magicmouse_raw_event, |
64eb105d | 714 | .input_mapping = magicmouse_input_mapping, |
f1a9a149 | 715 | .input_configured = magicmouse_input_configured, |
128537ce | 716 | }; |
f425458e | 717 | module_hid_driver(magicmouse_driver); |
128537ce | 718 | |
128537ce | 719 | MODULE_LICENSE("GPL"); |