Commit | Line | Data |
---|---|---|
128537ce MP |
1 | /* |
2 | * Apple "Magic" Wireless Mouse driver | |
3 | * | |
4 | * Copyright (c) 2010 Michael Poole <mdpoole@troilus.org> | |
a462230e | 5 | * Copyright (c) 2010 Chase Douglas <chase.douglas@canonical.com> |
128537ce MP |
6 | */ |
7 | ||
8 | /* | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the Free | |
11 | * Software Foundation; either version 2 of the License, or (at your option) | |
12 | * any later version. | |
13 | */ | |
14 | ||
4291ee30 JP |
15 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
16 | ||
128537ce MP |
17 | #include <linux/device.h> |
18 | #include <linux/hid.h> | |
19 | #include <linux/module.h> | |
5a0e3ad6 | 20 | #include <linux/slab.h> |
128537ce MP |
21 | #include <linux/usb.h> |
22 | ||
23 | #include "hid-ids.h" | |
24 | ||
71b38bd4 | 25 | static bool emulate_3button = true; |
128537ce MP |
26 | module_param(emulate_3button, bool, 0644); |
27 | MODULE_PARM_DESC(emulate_3button, "Emulate a middle button"); | |
28 | ||
29 | static int middle_button_start = -350; | |
30 | static int middle_button_stop = +350; | |
31 | ||
71b38bd4 | 32 | static bool emulate_scroll_wheel = true; |
128537ce MP |
33 | module_param(emulate_scroll_wheel, bool, 0644); |
34 | MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel"); | |
35 | ||
0b778e76 CD |
36 | static unsigned int scroll_speed = 32; |
37 | static int param_set_scroll_speed(const char *val, struct kernel_param *kp) { | |
38 | unsigned long speed; | |
39 | if (!val || strict_strtoul(val, 0, &speed) || speed > 63) | |
40 | return -EINVAL; | |
41 | scroll_speed = speed; | |
42 | return 0; | |
43 | } | |
44 | module_param_call(scroll_speed, param_set_scroll_speed, param_get_uint, &scroll_speed, 0644); | |
45 | MODULE_PARM_DESC(scroll_speed, "Scroll speed, value from 0 (slow) to 63 (fast)"); | |
46 | ||
9846f350 CD |
47 | static bool scroll_acceleration = false; |
48 | module_param(scroll_acceleration, bool, 0644); | |
49 | MODULE_PARM_DESC(scroll_acceleration, "Accelerate sequential scroll events"); | |
50 | ||
71b38bd4 | 51 | static bool report_touches = true; |
128537ce MP |
52 | module_param(report_touches, bool, 0644); |
53 | MODULE_PARM_DESC(report_touches, "Emit touch records (otherwise, only use them for emulation)"); | |
54 | ||
71b38bd4 | 55 | static bool report_undeciphered; |
128537ce MP |
56 | module_param(report_undeciphered, bool, 0644); |
57 | MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event"); | |
58 | ||
a462230e CD |
59 | #define TRACKPAD_REPORT_ID 0x28 |
60 | #define MOUSE_REPORT_ID 0x29 | |
61 | #define DOUBLE_REPORT_ID 0xf7 | |
128537ce MP |
62 | /* These definitions are not precise, but they're close enough. (Bits |
63 | * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem | |
64 | * to be some kind of bit mask -- 0x20 may be a near-field reading, | |
65 | * and 0x40 is actual contact, and 0x10 may be a start/stop or change | |
66 | * indication.) | |
67 | */ | |
68 | #define TOUCH_STATE_MASK 0xf0 | |
69 | #define TOUCH_STATE_NONE 0x00 | |
70 | #define TOUCH_STATE_START 0x30 | |
71 | #define TOUCH_STATE_DRAG 0x40 | |
72 | ||
0b778e76 CD |
73 | #define SCROLL_ACCEL_DEFAULT 7 |
74 | ||
a462230e CD |
75 | /* Single touch emulation should only begin when no touches are currently down. |
76 | * This is true when single_touch_id is equal to NO_TOUCHES. If multiple touches | |
77 | * are down and the touch providing for single touch emulation is lifted, | |
78 | * single_touch_id is equal to SINGLE_TOUCH_UP. While single touch emulation is | |
79 | * occuring, single_touch_id corresponds with the tracking id of the touch used. | |
80 | */ | |
81 | #define NO_TOUCHES -1 | |
82 | #define SINGLE_TOUCH_UP -2 | |
83 | ||
128537ce MP |
84 | /** |
85 | * struct magicmouse_sc - Tracks Magic Mouse-specific data. | |
86 | * @input: Input device through which we report events. | |
87 | * @quirks: Currently unused. | |
128537ce MP |
88 | * @ntouches: Number of touches in most recent touch report. |
89 | * @scroll_accel: Number of consecutive scroll motions. | |
90 | * @scroll_jiffies: Time of last scroll motion. | |
91 | * @touches: Most recent data for a touch, indexed by tracking ID. | |
92 | * @tracking_ids: Mapping of current touch input data to @touches. | |
93 | */ | |
94 | struct magicmouse_sc { | |
95 | struct input_dev *input; | |
96 | unsigned long quirks; | |
97 | ||
128537ce MP |
98 | int ntouches; |
99 | int scroll_accel; | |
100 | unsigned long scroll_jiffies; | |
101 | ||
102 | struct { | |
103 | short x; | |
104 | short y; | |
c0426688 | 105 | short scroll_x; |
128537ce MP |
106 | short scroll_y; |
107 | u8 size; | |
108 | } touches[16]; | |
109 | int tracking_ids[16]; | |
a462230e | 110 | int single_touch_id; |
128537ce MP |
111 | }; |
112 | ||
113 | static int magicmouse_firm_touch(struct magicmouse_sc *msc) | |
114 | { | |
115 | int touch = -1; | |
116 | int ii; | |
117 | ||
118 | /* If there is only one "firm" touch, set touch to its | |
119 | * tracking ID. | |
120 | */ | |
121 | for (ii = 0; ii < msc->ntouches; ii++) { | |
122 | int idx = msc->tracking_ids[ii]; | |
123 | if (msc->touches[idx].size < 8) { | |
124 | /* Ignore this touch. */ | |
125 | } else if (touch >= 0) { | |
126 | touch = -1; | |
127 | break; | |
128 | } else { | |
129 | touch = idx; | |
130 | } | |
131 | } | |
132 | ||
133 | return touch; | |
134 | } | |
135 | ||
136 | static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state) | |
137 | { | |
71b38bd4 MP |
138 | int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 | |
139 | test_bit(BTN_RIGHT, msc->input->key) << 1 | | |
140 | test_bit(BTN_MIDDLE, msc->input->key) << 2; | |
128537ce MP |
141 | |
142 | if (emulate_3button) { | |
143 | int id; | |
144 | ||
145 | /* If some button was pressed before, keep it held | |
146 | * down. Otherwise, if there's exactly one firm | |
147 | * touch, use that to override the mouse's guess. | |
148 | */ | |
149 | if (state == 0) { | |
150 | /* The button was released. */ | |
151 | } else if (last_state != 0) { | |
152 | state = last_state; | |
153 | } else if ((id = magicmouse_firm_touch(msc)) >= 0) { | |
154 | int x = msc->touches[id].x; | |
155 | if (x < middle_button_start) | |
156 | state = 1; | |
157 | else if (x > middle_button_stop) | |
158 | state = 2; | |
159 | else | |
160 | state = 4; | |
161 | } /* else: we keep the mouse's guess */ | |
162 | ||
163 | input_report_key(msc->input, BTN_MIDDLE, state & 4); | |
164 | } | |
165 | ||
166 | input_report_key(msc->input, BTN_LEFT, state & 1); | |
167 | input_report_key(msc->input, BTN_RIGHT, state & 2); | |
168 | ||
169 | if (state != last_state) | |
0b778e76 | 170 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
128537ce MP |
171 | } |
172 | ||
173 | static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata) | |
174 | { | |
175 | struct input_dev *input = msc->input; | |
a462230e CD |
176 | int id, x, y, size, orientation, touch_major, touch_minor, state, down; |
177 | ||
178 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { | |
179 | id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf; | |
180 | x = (tdata[1] << 28 | tdata[0] << 20) >> 20; | |
181 | y = -((tdata[2] << 24 | tdata[1] << 16) >> 20); | |
182 | size = tdata[5] & 0x3f; | |
183 | orientation = (tdata[6] >> 2) - 32; | |
184 | touch_major = tdata[3]; | |
185 | touch_minor = tdata[4]; | |
186 | state = tdata[7] & TOUCH_STATE_MASK; | |
187 | down = state != TOUCH_STATE_NONE; | |
188 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
189 | id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf; | |
190 | x = (tdata[1] << 27 | tdata[0] << 19) >> 19; | |
191 | y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19); | |
192 | size = tdata[6] & 0x3f; | |
193 | orientation = (tdata[7] >> 2) - 32; | |
194 | touch_major = tdata[4]; | |
195 | touch_minor = tdata[5]; | |
196 | state = tdata[8] & TOUCH_STATE_MASK; | |
197 | down = state != TOUCH_STATE_NONE; | |
198 | } | |
128537ce MP |
199 | |
200 | /* Store tracking ID and other fields. */ | |
201 | msc->tracking_ids[raw_id] = id; | |
202 | msc->touches[id].x = x; | |
203 | msc->touches[id].y = y; | |
6de048bf | 204 | msc->touches[id].size = size; |
128537ce MP |
205 | |
206 | /* If requested, emulate a scroll wheel by detecting small | |
ef566d30 | 207 | * vertical touch motions. |
128537ce | 208 | */ |
ef566d30 | 209 | if (emulate_scroll_wheel) { |
128537ce | 210 | unsigned long now = jiffies; |
c0426688 CD |
211 | int step_x = msc->touches[id].scroll_x - x; |
212 | int step_y = msc->touches[id].scroll_y - y; | |
128537ce | 213 | |
128537ce | 214 | /* Calculate and apply the scroll motion. */ |
6de048bf | 215 | switch (state) { |
128537ce | 216 | case TOUCH_STATE_START: |
c0426688 | 217 | msc->touches[id].scroll_x = x; |
128537ce | 218 | msc->touches[id].scroll_y = y; |
0b778e76 CD |
219 | |
220 | /* Reset acceleration after half a second. */ | |
221 | if (scroll_acceleration && time_before(now, | |
222 | msc->scroll_jiffies + HZ / 2)) | |
223 | msc->scroll_accel = max_t(int, | |
224 | msc->scroll_accel - 1, 1); | |
225 | else | |
226 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; | |
227 | ||
128537ce MP |
228 | break; |
229 | case TOUCH_STATE_DRAG: | |
c0426688 CD |
230 | step_x /= (64 - (int)scroll_speed) * msc->scroll_accel; |
231 | if (step_x != 0) { | |
232 | msc->touches[id].scroll_x -= step_x * | |
0b778e76 | 233 | (64 - scroll_speed) * msc->scroll_accel; |
128537ce | 234 | msc->scroll_jiffies = now; |
c0426688 CD |
235 | input_report_rel(input, REL_HWHEEL, -step_x); |
236 | } | |
237 | ||
238 | step_y /= (64 - (int)scroll_speed) * msc->scroll_accel; | |
239 | if (step_y != 0) { | |
240 | msc->touches[id].scroll_y -= step_y * | |
241 | (64 - scroll_speed) * msc->scroll_accel; | |
242 | msc->scroll_jiffies = now; | |
243 | input_report_rel(input, REL_WHEEL, step_y); | |
128537ce MP |
244 | } |
245 | break; | |
246 | } | |
247 | } | |
248 | ||
a462230e CD |
249 | if (down) { |
250 | msc->ntouches++; | |
251 | if (msc->single_touch_id == NO_TOUCHES) | |
252 | msc->single_touch_id = id; | |
253 | } else if (msc->single_touch_id == id) | |
254 | msc->single_touch_id = SINGLE_TOUCH_UP; | |
255 | ||
128537ce | 256 | /* Generate the input events for this touch. */ |
e3612e86 | 257 | if (report_touches && down) { |
128537ce | 258 | input_report_abs(input, ABS_MT_TRACKING_ID, id); |
921990b7 HR |
259 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2); |
260 | input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2); | |
128537ce MP |
261 | input_report_abs(input, ABS_MT_ORIENTATION, orientation); |
262 | input_report_abs(input, ABS_MT_POSITION_X, x); | |
263 | input_report_abs(input, ABS_MT_POSITION_Y, y); | |
264 | ||
a462230e CD |
265 | if (report_undeciphered) { |
266 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) | |
267 | input_event(input, EV_MSC, MSC_RAW, tdata[7]); | |
268 | else /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
269 | input_event(input, EV_MSC, MSC_RAW, tdata[8]); | |
270 | } | |
128537ce MP |
271 | |
272 | input_mt_sync(input); | |
273 | } | |
274 | } | |
275 | ||
276 | static int magicmouse_raw_event(struct hid_device *hdev, | |
277 | struct hid_report *report, u8 *data, int size) | |
278 | { | |
279 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
280 | struct input_dev *input = msc->input; | |
a462230e | 281 | int x = 0, y = 0, ii, clicks = 0, npoints; |
128537ce MP |
282 | |
283 | switch (data[0]) { | |
a462230e CD |
284 | case TRACKPAD_REPORT_ID: |
285 | /* Expect four bytes of prefix, and N*9 bytes of touch data. */ | |
286 | if (size < 4 || ((size - 4) % 9) != 0) | |
287 | return 0; | |
288 | npoints = (size - 4) / 9; | |
289 | msc->ntouches = 0; | |
290 | for (ii = 0; ii < npoints; ii++) | |
291 | magicmouse_emit_touch(msc, ii, data + ii * 9 + 4); | |
292 | ||
293 | /* We don't need an MT sync here because trackpad emits a | |
294 | * BTN_TOUCH event in a new frame when all touches are released. | |
295 | */ | |
296 | if (msc->ntouches == 0) | |
297 | msc->single_touch_id = NO_TOUCHES; | |
298 | ||
299 | clicks = data[1]; | |
300 | ||
301 | /* The following bits provide a device specific timestamp. They | |
302 | * are unused here. | |
303 | * | |
304 | * ts = data[1] >> 6 | data[2] << 2 | data[3] << 10; | |
305 | */ | |
306 | break; | |
307 | case MOUSE_REPORT_ID: | |
128537ce MP |
308 | /* Expect six bytes of prefix, and N*8 bytes of touch data. */ |
309 | if (size < 6 || ((size - 6) % 8) != 0) | |
310 | return 0; | |
0228db70 CD |
311 | npoints = (size - 6) / 8; |
312 | msc->ntouches = 0; | |
313 | for (ii = 0; ii < npoints; ii++) | |
128537ce | 314 | magicmouse_emit_touch(msc, ii, data + ii * 8 + 6); |
e3612e86 | 315 | |
0228db70 CD |
316 | if (report_touches && msc->ntouches == 0) |
317 | input_mt_sync(input); | |
e3612e86 | 318 | |
128537ce MP |
319 | /* When emulating three-button mode, it is important |
320 | * to have the current touch information before | |
321 | * generating a click event. | |
322 | */ | |
7d876c05 MP |
323 | x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22; |
324 | y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22; | |
128537ce | 325 | clicks = data[3]; |
c61b7cee CD |
326 | |
327 | /* The following bits provide a device specific timestamp. They | |
328 | * are unused here. | |
329 | * | |
330 | * ts = data[3] >> 6 | data[4] << 2 | data[5] << 10; | |
331 | */ | |
128537ce | 332 | break; |
a462230e CD |
333 | case DOUBLE_REPORT_ID: |
334 | /* Sometimes the trackpad sends two touch reports in one | |
335 | * packet. | |
336 | */ | |
337 | magicmouse_raw_event(hdev, report, data + 2, data[1]); | |
338 | magicmouse_raw_event(hdev, report, data + 2 + data[1], | |
339 | size - 2 - data[1]); | |
340 | break; | |
128537ce MP |
341 | default: |
342 | return 0; | |
343 | } | |
344 | ||
a462230e CD |
345 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { |
346 | magicmouse_emit_buttons(msc, clicks & 3); | |
347 | input_report_rel(input, REL_X, x); | |
348 | input_report_rel(input, REL_Y, y); | |
349 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
350 | input_report_key(input, BTN_MOUSE, clicks & 1); | |
351 | input_report_key(input, BTN_TOUCH, msc->ntouches > 0); | |
352 | input_report_key(input, BTN_TOOL_FINGER, msc->ntouches == 1); | |
353 | input_report_key(input, BTN_TOOL_DOUBLETAP, msc->ntouches == 2); | |
354 | input_report_key(input, BTN_TOOL_TRIPLETAP, msc->ntouches == 3); | |
355 | input_report_key(input, BTN_TOOL_QUADTAP, msc->ntouches == 4); | |
356 | if (msc->single_touch_id >= 0) { | |
357 | input_report_abs(input, ABS_X, | |
358 | msc->touches[msc->single_touch_id].x); | |
359 | input_report_abs(input, ABS_Y, | |
360 | msc->touches[msc->single_touch_id].y); | |
361 | } | |
362 | } | |
363 | ||
128537ce MP |
364 | input_sync(input); |
365 | return 1; | |
366 | } | |
367 | ||
128537ce MP |
368 | static void magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev) |
369 | { | |
71b38bd4 | 370 | __set_bit(EV_KEY, input->evbit); |
a462230e CD |
371 | |
372 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { | |
373 | __set_bit(BTN_LEFT, input->keybit); | |
374 | __set_bit(BTN_RIGHT, input->keybit); | |
375 | if (emulate_3button) | |
376 | __set_bit(BTN_MIDDLE, input->keybit); | |
377 | ||
378 | __set_bit(EV_REL, input->evbit); | |
379 | __set_bit(REL_X, input->relbit); | |
380 | __set_bit(REL_Y, input->relbit); | |
381 | if (emulate_scroll_wheel) { | |
382 | __set_bit(REL_WHEEL, input->relbit); | |
383 | __set_bit(REL_HWHEEL, input->relbit); | |
384 | } | |
385 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
386 | __set_bit(BTN_MOUSE, input->keybit); | |
387 | __set_bit(BTN_TOOL_FINGER, input->keybit); | |
388 | __set_bit(BTN_TOOL_DOUBLETAP, input->keybit); | |
389 | __set_bit(BTN_TOOL_TRIPLETAP, input->keybit); | |
390 | __set_bit(BTN_TOOL_QUADTAP, input->keybit); | |
391 | __set_bit(BTN_TOUCH, input->keybit); | |
c0426688 | 392 | } |
128537ce MP |
393 | |
394 | if (report_touches) { | |
71b38bd4 MP |
395 | __set_bit(EV_ABS, input->evbit); |
396 | ||
397 | input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0); | |
398 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0); | |
399 | input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0); | |
400 | input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0); | |
a462230e | 401 | |
128537ce MP |
402 | /* Note: Touch Y position from the device is inverted relative |
403 | * to how pointer motion is reported (and relative to how USB | |
404 | * HID recommends the coordinates work). This driver keeps | |
405 | * the origin at the same position, and just uses the additive | |
406 | * inverse of the reported Y. | |
407 | */ | |
a462230e CD |
408 | if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) { |
409 | input_set_abs_params(input, ABS_MT_POSITION_X, -1100, | |
410 | 1358, 4, 0); | |
411 | input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, | |
412 | 2047, 4, 0); | |
413 | } else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
414 | input_set_abs_params(input, ABS_X, -2909, 3167, 4, 0); | |
415 | input_set_abs_params(input, ABS_Y, -2456, 2565, 4, 0); | |
416 | input_set_abs_params(input, ABS_MT_POSITION_X, -2909, | |
417 | 3167, 4, 0); | |
418 | input_set_abs_params(input, ABS_MT_POSITION_Y, -2456, | |
419 | 2565, 4, 0); | |
420 | } | |
128537ce MP |
421 | } |
422 | ||
423 | if (report_undeciphered) { | |
71b38bd4 MP |
424 | __set_bit(EV_MSC, input->evbit); |
425 | __set_bit(MSC_RAW, input->mscbit); | |
128537ce MP |
426 | } |
427 | } | |
428 | ||
64eb105d MP |
429 | static int magicmouse_input_mapping(struct hid_device *hdev, |
430 | struct hid_input *hi, struct hid_field *field, | |
431 | struct hid_usage *usage, unsigned long **bit, int *max) | |
432 | { | |
433 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); | |
434 | ||
435 | if (!msc->input) | |
436 | msc->input = hi->input; | |
437 | ||
438 | return 0; | |
439 | } | |
440 | ||
128537ce MP |
441 | static int magicmouse_probe(struct hid_device *hdev, |
442 | const struct hid_device_id *id) | |
443 | { | |
0773590c | 444 | __u8 feature[] = { 0xd7, 0x01 }; |
128537ce MP |
445 | struct magicmouse_sc *msc; |
446 | struct hid_report *report; | |
447 | int ret; | |
448 | ||
449 | msc = kzalloc(sizeof(*msc), GFP_KERNEL); | |
450 | if (msc == NULL) { | |
4291ee30 | 451 | hid_err(hdev, "can't alloc magicmouse descriptor\n"); |
128537ce MP |
452 | return -ENOMEM; |
453 | } | |
454 | ||
0b778e76 CD |
455 | msc->scroll_accel = SCROLL_ACCEL_DEFAULT; |
456 | ||
128537ce MP |
457 | msc->quirks = id->driver_data; |
458 | hid_set_drvdata(hdev, msc); | |
459 | ||
a462230e CD |
460 | msc->single_touch_id = NO_TOUCHES; |
461 | ||
128537ce MP |
462 | ret = hid_parse(hdev); |
463 | if (ret) { | |
4291ee30 | 464 | hid_err(hdev, "magicmouse hid parse failed\n"); |
128537ce MP |
465 | goto err_free; |
466 | } | |
467 | ||
23d02116 | 468 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
128537ce | 469 | if (ret) { |
4291ee30 | 470 | hid_err(hdev, "magicmouse hw start failed\n"); |
128537ce MP |
471 | goto err_free; |
472 | } | |
473 | ||
64eb105d MP |
474 | /* We do this after hid-input is done parsing reports so that |
475 | * hid-input uses the most natural button and axis IDs. | |
476 | */ | |
477 | if (msc->input) | |
478 | magicmouse_setup_input(msc->input, hdev); | |
23d02116 | 479 | |
a462230e CD |
480 | if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE) |
481 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
482 | MOUSE_REPORT_ID); | |
483 | else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */ | |
484 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
485 | TRACKPAD_REPORT_ID); | |
486 | report = hid_register_report(hdev, HID_INPUT_REPORT, | |
487 | DOUBLE_REPORT_ID); | |
488 | } | |
489 | ||
128537ce | 490 | if (!report) { |
4291ee30 | 491 | hid_err(hdev, "unable to register touch report\n"); |
128537ce | 492 | ret = -ENOMEM; |
71b38bd4 | 493 | goto err_stop_hw; |
128537ce MP |
494 | } |
495 | report->size = 6; | |
496 | ||
0773590c | 497 | ret = hdev->hid_output_raw_report(hdev, feature, sizeof(feature), |
128537ce | 498 | HID_FEATURE_REPORT); |
0773590c | 499 | if (ret != sizeof(feature)) { |
4291ee30 | 500 | hid_err(hdev, "unable to request touch data (%d)\n", ret); |
71b38bd4 | 501 | goto err_stop_hw; |
128537ce MP |
502 | } |
503 | ||
128537ce | 504 | return 0; |
71b38bd4 MP |
505 | err_stop_hw: |
506 | hid_hw_stop(hdev); | |
507 | err_free: | |
128537ce MP |
508 | kfree(msc); |
509 | return ret; | |
510 | } | |
511 | ||
512 | static void magicmouse_remove(struct hid_device *hdev) | |
513 | { | |
28918c21 MP |
514 | struct magicmouse_sc *msc = hid_get_drvdata(hdev); |
515 | ||
128537ce | 516 | hid_hw_stop(hdev); |
28918c21 | 517 | kfree(msc); |
128537ce MP |
518 | } |
519 | ||
520 | static const struct hid_device_id magic_mice[] = { | |
a462230e CD |
521 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, |
522 | USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 }, | |
523 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, | |
524 | USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 }, | |
128537ce MP |
525 | { } |
526 | }; | |
527 | MODULE_DEVICE_TABLE(hid, magic_mice); | |
528 | ||
529 | static struct hid_driver magicmouse_driver = { | |
530 | .name = "magicmouse", | |
531 | .id_table = magic_mice, | |
532 | .probe = magicmouse_probe, | |
533 | .remove = magicmouse_remove, | |
534 | .raw_event = magicmouse_raw_event, | |
64eb105d | 535 | .input_mapping = magicmouse_input_mapping, |
128537ce MP |
536 | }; |
537 | ||
538 | static int __init magicmouse_init(void) | |
539 | { | |
540 | int ret; | |
541 | ||
542 | ret = hid_register_driver(&magicmouse_driver); | |
543 | if (ret) | |
4291ee30 | 544 | pr_err("can't register magicmouse driver\n"); |
128537ce MP |
545 | |
546 | return ret; | |
547 | } | |
548 | ||
549 | static void __exit magicmouse_exit(void) | |
550 | { | |
551 | hid_unregister_driver(&magicmouse_driver); | |
552 | } | |
553 | ||
554 | module_init(magicmouse_init); | |
555 | module_exit(magicmouse_exit); | |
556 | MODULE_LICENSE("GPL"); |