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eeb01a57 | 1 | /* |
b94f7d5d | 2 | * HID driver for Asus notebook built-in keyboard. |
eeb01a57 YF |
3 | * Fixes small logical maximum to match usage maximum. |
4 | * | |
b94f7d5d YF |
5 | * Currently supported devices are: |
6 | * EeeBook X205TA | |
7 | * VivoBook E200HA | |
8 | * | |
eeb01a57 YF |
9 | * Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com> |
10 | * | |
11 | * This module based on hid-ortek by | |
12 | * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> | |
13 | * Copyright (c) 2011 Jiri Kosina | |
9ce12d8b BM |
14 | * |
15 | * This module has been updated to add support for Asus i2c touchpad. | |
16 | * | |
17 | * Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org> | |
18 | * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com> | |
19 | * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com> | |
eeb01a57 YF |
20 | */ |
21 | ||
22 | /* | |
23 | * This program is free software; you can redistribute it and/or modify it | |
24 | * under the terms of the GNU General Public License as published by the Free | |
25 | * Software Foundation; either version 2 of the License, or (at your option) | |
26 | * any later version. | |
27 | */ | |
28 | ||
eeb01a57 YF |
29 | #include <linux/hid.h> |
30 | #include <linux/module.h> | |
9ce12d8b | 31 | #include <linux/input/mt.h> |
57573c54 | 32 | #include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */ |
eeb01a57 YF |
33 | |
34 | #include "hid-ids.h" | |
35 | ||
9ce12d8b BM |
36 | MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>"); |
37 | MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>"); | |
38 | MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>"); | |
39 | MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>"); | |
40 | MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); | |
41 | ||
57573c54 HG |
42 | #define T100_TPAD_INTF 2 |
43 | ||
73c75d39 | 44 | #define T100CHI_MOUSE_REPORT_ID 0x06 |
9ce12d8b BM |
45 | #define FEATURE_REPORT_ID 0x0d |
46 | #define INPUT_REPORT_ID 0x5d | |
af22a610 | 47 | #define FEATURE_KBD_REPORT_ID 0x5a |
af22a610 CC |
48 | #define FEATURE_KBD_REPORT_SIZE 16 |
49 | ||
50 | #define SUPPORT_KBD_BACKLIGHT BIT(0) | |
9ce12d8b | 51 | |
9ce12d8b BM |
52 | #define MAX_TOUCH_MAJOR 8 |
53 | #define MAX_PRESSURE 128 | |
54 | ||
9ce12d8b BM |
55 | #define BTN_LEFT_MASK 0x01 |
56 | #define CONTACT_TOOL_TYPE_MASK 0x80 | |
57 | #define CONTACT_X_MSB_MASK 0xf0 | |
58 | #define CONTACT_Y_MSB_MASK 0x0f | |
59 | #define CONTACT_TOUCH_MAJOR_MASK 0x07 | |
60 | #define CONTACT_PRESSURE_MASK 0x7f | |
61 | ||
62 | #define QUIRK_FIX_NOTEBOOK_REPORT BIT(0) | |
63 | #define QUIRK_NO_INIT_REPORTS BIT(1) | |
64 | #define QUIRK_SKIP_INPUT_MAPPING BIT(2) | |
65 | #define QUIRK_IS_MULTITOUCH BIT(3) | |
0485b1ec | 66 | #define QUIRK_NO_CONSUMER_USAGES BIT(4) |
af22a610 | 67 | #define QUIRK_USE_KBD_BACKLIGHT BIT(5) |
76dd1fbe | 68 | #define QUIRK_T100_KEYBOARD BIT(6) |
5703e52c | 69 | #define QUIRK_T100CHI BIT(7) |
832e1eee | 70 | #define QUIRK_G752_KEYBOARD BIT(8) |
9ce12d8b | 71 | |
a93913e1 | 72 | #define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ |
0485b1ec MH |
73 | QUIRK_NO_INIT_REPORTS | \ |
74 | QUIRK_NO_CONSUMER_USAGES) | |
c81760b9 | 75 | #define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ |
9ce12d8b BM |
76 | QUIRK_SKIP_INPUT_MAPPING | \ |
77 | QUIRK_IS_MULTITOUCH) | |
78 | ||
79 | #define TRKID_SGN ((TRKID_MAX + 1) >> 1) | |
80 | ||
af22a610 CC |
81 | struct asus_kbd_leds { |
82 | struct led_classdev cdev; | |
83 | struct hid_device *hdev; | |
84 | struct work_struct work; | |
85 | unsigned int brightness; | |
86 | bool removed; | |
87 | }; | |
88 | ||
c81760b9 HG |
89 | struct asus_touchpad_info { |
90 | int max_x; | |
91 | int max_y; | |
b61d43e6 HG |
92 | int res_x; |
93 | int res_y; | |
c81760b9 HG |
94 | int contact_size; |
95 | int max_contacts; | |
96 | }; | |
97 | ||
9ce12d8b BM |
98 | struct asus_drvdata { |
99 | unsigned long quirks; | |
100 | struct input_dev *input; | |
af22a610 | 101 | struct asus_kbd_leds *kbd_backlight; |
c81760b9 | 102 | const struct asus_touchpad_info *tp; |
af22a610 | 103 | bool enable_backlight; |
9ce12d8b BM |
104 | }; |
105 | ||
c81760b9 HG |
106 | static const struct asus_touchpad_info asus_i2c_tp = { |
107 | .max_x = 2794, | |
108 | .max_y = 1758, | |
109 | .contact_size = 5, | |
110 | .max_contacts = 5, | |
111 | }; | |
112 | ||
113 | static const struct asus_touchpad_info asus_t100ta_tp = { | |
114 | .max_x = 2240, | |
25cc2611 | 115 | .max_y = 1120, |
b61d43e6 HG |
116 | .res_x = 30, /* units/mm */ |
117 | .res_y = 27, /* units/mm */ | |
c81760b9 HG |
118 | .contact_size = 5, |
119 | .max_contacts = 5, | |
120 | }; | |
121 | ||
73c75d39 HG |
122 | static const struct asus_touchpad_info asus_t100chi_tp = { |
123 | .max_x = 2640, | |
124 | .max_y = 1320, | |
125 | .res_x = 31, /* units/mm */ | |
126 | .res_y = 29, /* units/mm */ | |
127 | .contact_size = 3, | |
128 | .max_contacts = 4, | |
129 | }; | |
130 | ||
c81760b9 | 131 | static void asus_report_contact_down(struct asus_drvdata *drvdat, |
9ce12d8b BM |
132 | int toolType, u8 *data) |
133 | { | |
c81760b9 HG |
134 | struct input_dev *input = drvdat->input; |
135 | int touch_major, pressure, x, y; | |
136 | ||
137 | x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1]; | |
138 | y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]); | |
9ce12d8b | 139 | |
73c75d39 HG |
140 | input_report_abs(input, ABS_MT_POSITION_X, x); |
141 | input_report_abs(input, ABS_MT_POSITION_Y, y); | |
142 | ||
143 | if (drvdat->tp->contact_size < 5) | |
144 | return; | |
145 | ||
9ce12d8b BM |
146 | if (toolType == MT_TOOL_PALM) { |
147 | touch_major = MAX_TOUCH_MAJOR; | |
148 | pressure = MAX_PRESSURE; | |
149 | } else { | |
150 | touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK; | |
151 | pressure = data[4] & CONTACT_PRESSURE_MASK; | |
152 | } | |
153 | ||
9ce12d8b BM |
154 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major); |
155 | input_report_abs(input, ABS_MT_PRESSURE, pressure); | |
156 | } | |
157 | ||
158 | /* Required for Synaptics Palm Detection */ | |
c81760b9 | 159 | static void asus_report_tool_width(struct asus_drvdata *drvdat) |
9ce12d8b | 160 | { |
c81760b9 | 161 | struct input_mt *mt = drvdat->input->mt; |
9ce12d8b BM |
162 | struct input_mt_slot *oldest; |
163 | int oldid, count, i; | |
164 | ||
73c75d39 HG |
165 | if (drvdat->tp->contact_size < 5) |
166 | return; | |
167 | ||
9ce12d8b BM |
168 | oldest = NULL; |
169 | oldid = mt->trkid; | |
170 | count = 0; | |
171 | ||
172 | for (i = 0; i < mt->num_slots; ++i) { | |
173 | struct input_mt_slot *ps = &mt->slots[i]; | |
174 | int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); | |
175 | ||
176 | if (id < 0) | |
177 | continue; | |
178 | if ((id - oldid) & TRKID_SGN) { | |
179 | oldest = ps; | |
180 | oldid = id; | |
181 | } | |
182 | count++; | |
183 | } | |
184 | ||
185 | if (oldest) { | |
c81760b9 | 186 | input_report_abs(drvdat->input, ABS_TOOL_WIDTH, |
9ce12d8b BM |
187 | input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR)); |
188 | } | |
189 | } | |
190 | ||
c81760b9 | 191 | static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size) |
9ce12d8b | 192 | { |
73c75d39 | 193 | int i, toolType = MT_TOOL_FINGER; |
9ce12d8b BM |
194 | u8 *contactData = data + 2; |
195 | ||
c81760b9 HG |
196 | if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts) |
197 | return 0; | |
198 | ||
199 | for (i = 0; i < drvdat->tp->max_contacts; i++) { | |
9ce12d8b | 200 | bool down = !!(data[1] & BIT(i+3)); |
73c75d39 HG |
201 | |
202 | if (drvdat->tp->contact_size >= 5) | |
203 | toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ? | |
9ce12d8b BM |
204 | MT_TOOL_PALM : MT_TOOL_FINGER; |
205 | ||
c81760b9 HG |
206 | input_mt_slot(drvdat->input, i); |
207 | input_mt_report_slot_state(drvdat->input, toolType, down); | |
9ce12d8b BM |
208 | |
209 | if (down) { | |
c81760b9 HG |
210 | asus_report_contact_down(drvdat, toolType, contactData); |
211 | contactData += drvdat->tp->contact_size; | |
9ce12d8b BM |
212 | } |
213 | } | |
214 | ||
c81760b9 HG |
215 | input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK); |
216 | asus_report_tool_width(drvdat); | |
217 | ||
218 | input_mt_sync_frame(drvdat->input); | |
219 | input_sync(drvdat->input); | |
9ce12d8b | 220 | |
c81760b9 | 221 | return 1; |
9ce12d8b BM |
222 | } |
223 | ||
224 | static int asus_raw_event(struct hid_device *hdev, | |
225 | struct hid_report *report, u8 *data, int size) | |
226 | { | |
227 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); | |
228 | ||
c81760b9 HG |
229 | if (drvdata->tp && data[0] == INPUT_REPORT_ID) |
230 | return asus_report_input(drvdata, data, size); | |
9ce12d8b BM |
231 | |
232 | return 0; | |
233 | } | |
234 | ||
af22a610 CC |
235 | static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size) |
236 | { | |
237 | unsigned char *dmabuf; | |
238 | int ret; | |
239 | ||
240 | dmabuf = kmemdup(buf, buf_size, GFP_KERNEL); | |
241 | if (!dmabuf) | |
242 | return -ENOMEM; | |
243 | ||
244 | ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, dmabuf, | |
245 | buf_size, HID_FEATURE_REPORT, | |
246 | HID_REQ_SET_REPORT); | |
247 | kfree(dmabuf); | |
248 | ||
249 | return ret; | |
250 | } | |
251 | ||
252 | static int asus_kbd_init(struct hid_device *hdev) | |
253 | { | |
254 | u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54, | |
255 | 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 }; | |
256 | int ret; | |
257 | ||
258 | ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); | |
259 | if (ret < 0) | |
260 | hid_err(hdev, "Asus failed to send init command: %d\n", ret); | |
261 | ||
262 | return ret; | |
263 | } | |
264 | ||
265 | static int asus_kbd_get_functions(struct hid_device *hdev, | |
266 | unsigned char *kbd_func) | |
267 | { | |
268 | u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 }; | |
269 | u8 *readbuf; | |
270 | int ret; | |
271 | ||
272 | ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); | |
273 | if (ret < 0) { | |
274 | hid_err(hdev, "Asus failed to send configuration command: %d\n", ret); | |
275 | return ret; | |
276 | } | |
277 | ||
278 | readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL); | |
279 | if (!readbuf) | |
280 | return -ENOMEM; | |
281 | ||
282 | ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf, | |
283 | FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT, | |
284 | HID_REQ_GET_REPORT); | |
285 | if (ret < 0) { | |
286 | hid_err(hdev, "Asus failed to request functions: %d\n", ret); | |
287 | kfree(readbuf); | |
288 | return ret; | |
289 | } | |
290 | ||
291 | *kbd_func = readbuf[6]; | |
292 | ||
293 | kfree(readbuf); | |
294 | return ret; | |
295 | } | |
296 | ||
297 | static void asus_kbd_backlight_set(struct led_classdev *led_cdev, | |
298 | enum led_brightness brightness) | |
299 | { | |
300 | struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, | |
301 | cdev); | |
302 | if (led->brightness == brightness) | |
303 | return; | |
304 | ||
305 | led->brightness = brightness; | |
306 | schedule_work(&led->work); | |
307 | } | |
308 | ||
309 | static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev) | |
310 | { | |
311 | struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, | |
312 | cdev); | |
313 | ||
314 | return led->brightness; | |
315 | } | |
316 | ||
317 | static void asus_kbd_backlight_work(struct work_struct *work) | |
318 | { | |
319 | struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work); | |
320 | u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 }; | |
321 | int ret; | |
322 | ||
323 | if (led->removed) | |
324 | return; | |
325 | ||
326 | buf[4] = led->brightness; | |
327 | ||
328 | ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf)); | |
329 | if (ret < 0) | |
330 | hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret); | |
331 | } | |
332 | ||
333 | static int asus_kbd_register_leds(struct hid_device *hdev) | |
334 | { | |
335 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); | |
336 | unsigned char kbd_func; | |
337 | int ret; | |
338 | ||
339 | /* Initialize keyboard */ | |
340 | ret = asus_kbd_init(hdev); | |
341 | if (ret < 0) | |
342 | return ret; | |
343 | ||
344 | /* Get keyboard functions */ | |
345 | ret = asus_kbd_get_functions(hdev, &kbd_func); | |
346 | if (ret < 0) | |
347 | return ret; | |
348 | ||
349 | /* Check for backlight support */ | |
350 | if (!(kbd_func & SUPPORT_KBD_BACKLIGHT)) | |
351 | return -ENODEV; | |
352 | ||
353 | drvdata->kbd_backlight = devm_kzalloc(&hdev->dev, | |
354 | sizeof(struct asus_kbd_leds), | |
355 | GFP_KERNEL); | |
356 | if (!drvdata->kbd_backlight) | |
357 | return -ENOMEM; | |
358 | ||
359 | drvdata->kbd_backlight->removed = false; | |
360 | drvdata->kbd_backlight->brightness = 0; | |
361 | drvdata->kbd_backlight->hdev = hdev; | |
362 | drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight"; | |
363 | drvdata->kbd_backlight->cdev.max_brightness = 3; | |
364 | drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set; | |
365 | drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get; | |
366 | INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work); | |
367 | ||
368 | ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev); | |
369 | if (ret < 0) { | |
370 | /* No need to have this still around */ | |
371 | devm_kfree(&hdev->dev, drvdata->kbd_backlight); | |
372 | } | |
373 | ||
374 | return ret; | |
375 | } | |
376 | ||
9ce12d8b BM |
377 | static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) |
378 | { | |
c8b1b3dd | 379 | struct input_dev *input = hi->input; |
9ce12d8b BM |
380 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); |
381 | ||
73c75d39 HG |
382 | /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */ |
383 | if (drvdata->quirks & QUIRK_T100CHI && | |
384 | hi->report->id != T100CHI_MOUSE_REPORT_ID) | |
385 | return 0; | |
386 | ||
c81760b9 | 387 | if (drvdata->tp) { |
9ce12d8b | 388 | int ret; |
9ce12d8b | 389 | |
c81760b9 HG |
390 | input_set_abs_params(input, ABS_MT_POSITION_X, 0, |
391 | drvdata->tp->max_x, 0, 0); | |
392 | input_set_abs_params(input, ABS_MT_POSITION_Y, 0, | |
393 | drvdata->tp->max_y, 0, 0); | |
b61d43e6 HG |
394 | input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x); |
395 | input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y); | |
73c75d39 HG |
396 | |
397 | if (drvdata->tp->contact_size >= 5) { | |
398 | input_set_abs_params(input, ABS_TOOL_WIDTH, 0, | |
399 | MAX_TOUCH_MAJOR, 0, 0); | |
400 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, | |
401 | MAX_TOUCH_MAJOR, 0, 0); | |
402 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, | |
403 | MAX_PRESSURE, 0, 0); | |
404 | } | |
9ce12d8b BM |
405 | |
406 | __set_bit(BTN_LEFT, input->keybit); | |
407 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); | |
408 | ||
c81760b9 HG |
409 | ret = input_mt_init_slots(input, drvdata->tp->max_contacts, |
410 | INPUT_MT_POINTER); | |
9ce12d8b BM |
411 | |
412 | if (ret) { | |
413 | hid_err(hdev, "Asus input mt init slots failed: %d\n", ret); | |
414 | return ret; | |
415 | } | |
9ce12d8b BM |
416 | } |
417 | ||
c8b1b3dd BM |
418 | drvdata->input = input; |
419 | ||
af22a610 CC |
420 | if (drvdata->enable_backlight && asus_kbd_register_leds(hdev)) |
421 | hid_warn(hdev, "Failed to initialize backlight.\n"); | |
422 | ||
9ce12d8b BM |
423 | return 0; |
424 | } | |
425 | ||
a93913e1 | 426 | #define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ |
1caccc25 | 427 | max, EV_KEY, (c)) |
9ce12d8b BM |
428 | static int asus_input_mapping(struct hid_device *hdev, |
429 | struct hid_input *hi, struct hid_field *field, | |
430 | struct hid_usage *usage, unsigned long **bit, | |
431 | int *max) | |
432 | { | |
433 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); | |
434 | ||
435 | if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) { | |
436 | /* Don't map anything from the HID report. | |
437 | * We do it all manually in asus_input_configured | |
438 | */ | |
439 | return -1; | |
440 | } | |
441 | ||
73c75d39 HG |
442 | /* |
443 | * Ignore a bunch of bogus collections in the T100CHI descriptor. | |
444 | * This avoids a bunch of non-functional hid_input devices getting | |
445 | * created because of the T100CHI using HID_QUIRK_MULTI_INPUT. | |
446 | */ | |
447 | if (drvdata->quirks & QUIRK_T100CHI) { | |
448 | if (field->application == (HID_UP_GENDESK | 0x0080) || | |
449 | usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) || | |
450 | usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) || | |
451 | usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)) | |
452 | return -1; | |
453 | /* | |
454 | * We use the hid_input for the mouse report for the touchpad, | |
455 | * keep the left button, to avoid the core removing it. | |
456 | */ | |
457 | if (field->application == HID_GD_MOUSE && | |
458 | usage->hid != (HID_UP_BUTTON | 1)) | |
459 | return -1; | |
460 | } | |
461 | ||
a93913e1 | 462 | /* ASUS-specific keyboard hotkeys */ |
1caccc25 CC |
463 | if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) { |
464 | set_bit(EV_REP, hi->input->evbit); | |
465 | switch (usage->hid & HID_USAGE) { | |
a93913e1 MH |
466 | case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; |
467 | case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break; | |
468 | case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break; | |
469 | case 0x6c: asus_map_key_clear(KEY_SLEEP); break; | |
470 | case 0x82: asus_map_key_clear(KEY_CAMERA); break; | |
802b24b4 | 471 | case 0x88: asus_map_key_clear(KEY_RFKILL); break; |
a93913e1 MH |
472 | case 0xb5: asus_map_key_clear(KEY_CALC); break; |
473 | case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break; | |
474 | case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break; | |
1caccc25 CC |
475 | |
476 | /* ASUS touchpad toggle */ | |
a93913e1 | 477 | case 0x6b: asus_map_key_clear(KEY_F21); break; |
1caccc25 CC |
478 | |
479 | /* ROG key */ | |
a93913e1 | 480 | case 0x38: asus_map_key_clear(KEY_PROG1); break; |
1caccc25 CC |
481 | |
482 | /* Fn+C ASUS Splendid */ | |
a93913e1 | 483 | case 0xba: asus_map_key_clear(KEY_PROG2); break; |
1caccc25 CC |
484 | |
485 | /* Fn+Space Power4Gear Hybrid */ | |
a93913e1 | 486 | case 0x5c: asus_map_key_clear(KEY_PROG3); break; |
1caccc25 CC |
487 | |
488 | default: | |
0485b1ec MH |
489 | /* ASUS lazily declares 256 usages, ignore the rest, |
490 | * as some make the keyboard appear as a pointer device. */ | |
491 | return -1; | |
1caccc25 | 492 | } |
af22a610 CC |
493 | |
494 | /* | |
495 | * Check and enable backlight only on devices with UsagePage == | |
496 | * 0xff31 to avoid initializing the keyboard firmware multiple | |
497 | * times on devices with multiple HID descriptors but same | |
498 | * PID/VID. | |
499 | */ | |
500 | if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) | |
501 | drvdata->enable_backlight = true; | |
502 | ||
1caccc25 CC |
503 | return 1; |
504 | } | |
505 | ||
5be91803 DD |
506 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) { |
507 | set_bit(EV_REP, hi->input->evbit); | |
508 | switch (usage->hid & HID_USAGE) { | |
509 | case 0xff01: asus_map_key_clear(BTN_1); break; | |
510 | case 0xff02: asus_map_key_clear(BTN_2); break; | |
511 | case 0xff03: asus_map_key_clear(BTN_3); break; | |
512 | case 0xff04: asus_map_key_clear(BTN_4); break; | |
513 | case 0xff05: asus_map_key_clear(BTN_5); break; | |
514 | case 0xff06: asus_map_key_clear(BTN_6); break; | |
515 | case 0xff07: asus_map_key_clear(BTN_7); break; | |
516 | case 0xff08: asus_map_key_clear(BTN_8); break; | |
517 | case 0xff09: asus_map_key_clear(BTN_9); break; | |
518 | case 0xff0a: asus_map_key_clear(BTN_A); break; | |
519 | case 0xff0b: asus_map_key_clear(BTN_B); break; | |
520 | case 0x00f1: asus_map_key_clear(KEY_WLAN); break; | |
521 | case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; | |
522 | case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break; | |
523 | case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break; | |
524 | case 0x00f7: asus_map_key_clear(KEY_CAMERA); break; | |
525 | case 0x00f8: asus_map_key_clear(KEY_PROG1); break; | |
526 | default: | |
527 | return 0; | |
528 | } | |
529 | ||
530 | return 1; | |
531 | } | |
532 | ||
0485b1ec MH |
533 | if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES && |
534 | (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) { | |
535 | switch (usage->hid & HID_USAGE) { | |
536 | case 0xe2: /* Mute */ | |
537 | case 0xe9: /* Volume up */ | |
538 | case 0xea: /* Volume down */ | |
539 | return 0; | |
540 | default: | |
541 | /* Ignore dummy Consumer usages which make the | |
542 | * keyboard incorrectly appear as a pointer device. | |
543 | */ | |
544 | return -1; | |
545 | } | |
546 | } | |
547 | ||
9ce12d8b BM |
548 | return 0; |
549 | } | |
550 | ||
551 | static int asus_start_multitouch(struct hid_device *hdev) | |
552 | { | |
553 | int ret; | |
554 | const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 }; | |
555 | unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL); | |
556 | ||
557 | if (!dmabuf) { | |
558 | ret = -ENOMEM; | |
559 | hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret); | |
560 | return ret; | |
561 | } | |
562 | ||
563 | ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf), | |
564 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
565 | ||
566 | kfree(dmabuf); | |
567 | ||
568 | if (ret != sizeof(buf)) { | |
569 | hid_err(hdev, "Asus failed to start multitouch: %d\n", ret); | |
570 | return ret; | |
571 | } | |
572 | ||
573 | return 0; | |
574 | } | |
575 | ||
576 | static int __maybe_unused asus_reset_resume(struct hid_device *hdev) | |
577 | { | |
578 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); | |
579 | ||
c81760b9 | 580 | if (drvdata->tp) |
9ce12d8b BM |
581 | return asus_start_multitouch(hdev); |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
587 | { | |
588 | int ret; | |
589 | struct asus_drvdata *drvdata; | |
590 | ||
591 | drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); | |
592 | if (drvdata == NULL) { | |
593 | hid_err(hdev, "Can't alloc Asus descriptor\n"); | |
594 | return -ENOMEM; | |
595 | } | |
596 | ||
597 | hid_set_drvdata(hdev, drvdata); | |
598 | ||
599 | drvdata->quirks = id->driver_data; | |
600 | ||
c81760b9 HG |
601 | if (drvdata->quirks & QUIRK_IS_MULTITOUCH) |
602 | drvdata->tp = &asus_i2c_tp; | |
603 | ||
57573c54 HG |
604 | if (drvdata->quirks & QUIRK_T100_KEYBOARD) { |
605 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
606 | ||
c81760b9 HG |
607 | if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) { |
608 | drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING; | |
609 | drvdata->tp = &asus_t100ta_tp; | |
610 | } | |
57573c54 HG |
611 | } |
612 | ||
73c75d39 HG |
613 | if (drvdata->quirks & QUIRK_T100CHI) { |
614 | /* | |
615 | * All functionality is on a single HID interface and for | |
616 | * userspace the touchpad must be a separate input_dev. | |
617 | */ | |
618 | hdev->quirks |= HID_QUIRK_MULTI_INPUT | | |
619 | HID_QUIRK_NO_EMPTY_INPUT; | |
620 | drvdata->tp = &asus_t100chi_tp; | |
621 | } | |
622 | ||
9ce12d8b BM |
623 | if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) |
624 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
625 | ||
626 | ret = hid_parse(hdev); | |
627 | if (ret) { | |
628 | hid_err(hdev, "Asus hid parse failed: %d\n", ret); | |
629 | return ret; | |
630 | } | |
631 | ||
632 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
633 | if (ret) { | |
634 | hid_err(hdev, "Asus hw start failed: %d\n", ret); | |
635 | return ret; | |
636 | } | |
637 | ||
638 | if (!drvdata->input) { | |
639 | hid_err(hdev, "Asus input not registered\n"); | |
640 | ret = -ENOMEM; | |
641 | goto err_stop_hw; | |
642 | } | |
643 | ||
c81760b9 | 644 | if (drvdata->tp) { |
c8b1b3dd BM |
645 | drvdata->input->name = "Asus TouchPad"; |
646 | } else { | |
647 | drvdata->input->name = "Asus Keyboard"; | |
648 | } | |
9ce12d8b | 649 | |
c81760b9 | 650 | if (drvdata->tp) { |
9ce12d8b BM |
651 | ret = asus_start_multitouch(hdev); |
652 | if (ret) | |
653 | goto err_stop_hw; | |
654 | } | |
655 | ||
656 | return 0; | |
657 | err_stop_hw: | |
658 | hid_hw_stop(hdev); | |
659 | return ret; | |
660 | } | |
661 | ||
af22a610 CC |
662 | static void asus_remove(struct hid_device *hdev) |
663 | { | |
664 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); | |
665 | ||
666 | if (drvdata->kbd_backlight) { | |
667 | drvdata->kbd_backlight->removed = true; | |
668 | cancel_work_sync(&drvdata->kbd_backlight->work); | |
669 | } | |
715e944f CC |
670 | |
671 | hid_hw_stop(hdev); | |
af22a610 CC |
672 | } |
673 | ||
832e1eee MB |
674 | static const __u8 asus_g752_fixed_rdesc[] = { |
675 | 0x19, 0x00, /* Usage Minimum (0x00) */ | |
676 | 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */ | |
677 | }; | |
678 | ||
eeb01a57 YF |
679 | static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
680 | unsigned int *rsize) | |
681 | { | |
9ce12d8b BM |
682 | struct asus_drvdata *drvdata = hid_get_drvdata(hdev); |
683 | ||
684 | if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT && | |
685 | *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { | |
b94f7d5d | 686 | hid_info(hdev, "Fixing up Asus notebook report descriptor\n"); |
eeb01a57 YF |
687 | rdesc[55] = 0xdd; |
688 | } | |
5703e52c | 689 | /* For the T100TA keyboard dock */ |
76dd1fbe HG |
690 | if (drvdata->quirks & QUIRK_T100_KEYBOARD && |
691 | *rsize == 76 && rdesc[73] == 0x81 && rdesc[74] == 0x01) { | |
692 | hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n"); | |
693 | rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT; | |
694 | } | |
5703e52c HG |
695 | /* For the T100CHI keyboard dock */ |
696 | if (drvdata->quirks & QUIRK_T100CHI && | |
697 | *rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) { | |
698 | /* | |
699 | * Change Usage (76h) to Usage Minimum (00h), Usage Maximum | |
700 | * (FFh) and clear the flags in the Input() byte. | |
701 | * Note the descriptor has a bogus 0 byte at the end so we | |
702 | * only need 1 extra byte. | |
703 | */ | |
704 | *rsize = 404; | |
705 | rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL); | |
706 | if (!rdesc) | |
707 | return NULL; | |
708 | ||
709 | hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n"); | |
710 | memmove(rdesc + 392, rdesc + 390, 12); | |
711 | rdesc[388] = 0x19; | |
712 | rdesc[389] = 0x00; | |
713 | rdesc[390] = 0x29; | |
714 | rdesc[391] = 0xff; | |
715 | rdesc[402] = 0x00; | |
716 | } | |
832e1eee MB |
717 | if (drvdata->quirks & QUIRK_G752_KEYBOARD && |
718 | *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) { | |
719 | /* report is missing usage mninum and maximum */ | |
720 | __u8 *new_rdesc; | |
721 | size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc); | |
722 | ||
723 | new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL); | |
724 | if (new_rdesc == NULL) | |
725 | return rdesc; | |
726 | ||
727 | hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n"); | |
728 | /* copy the valid part */ | |
729 | memcpy(new_rdesc, rdesc, 61); | |
730 | /* insert missing part */ | |
731 | memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc)); | |
732 | /* copy remaining data */ | |
733 | memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61); | |
734 | ||
735 | *rsize = new_size; | |
736 | rdesc = new_rdesc; | |
737 | } | |
76dd1fbe | 738 | |
eeb01a57 YF |
739 | return rdesc; |
740 | } | |
741 | ||
742 | static const struct hid_device_id asus_devices[] = { | |
9ce12d8b | 743 | { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, |
a93913e1 | 744 | USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS}, |
9ce12d8b | 745 | { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, |
c81760b9 | 746 | USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS }, |
1caccc25 | 747 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, |
339ee3fc | 748 | USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT }, |
1caccc25 | 749 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, |
af22a610 | 750 | USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT }, |
832e1eee MB |
751 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, |
752 | USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD }, | |
76dd1fbe HG |
753 | { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, |
754 | USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD), | |
755 | QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, | |
5be91803 | 756 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, |
38b2d78c | 757 | { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) }, |
5be91803 | 758 | { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) }, |
5703e52c HG |
759 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, |
760 | USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI }, | |
761 | ||
eeb01a57 YF |
762 | { } |
763 | }; | |
764 | MODULE_DEVICE_TABLE(hid, asus_devices); | |
765 | ||
766 | static struct hid_driver asus_driver = { | |
9ce12d8b BM |
767 | .name = "asus", |
768 | .id_table = asus_devices, | |
769 | .report_fixup = asus_report_fixup, | |
770 | .probe = asus_probe, | |
af22a610 | 771 | .remove = asus_remove, |
9ce12d8b BM |
772 | .input_mapping = asus_input_mapping, |
773 | .input_configured = asus_input_configured, | |
774 | #ifdef CONFIG_PM | |
775 | .reset_resume = asus_reset_resume, | |
776 | #endif | |
777 | .raw_event = asus_raw_event | |
eeb01a57 YF |
778 | }; |
779 | module_hid_driver(asus_driver); | |
780 | ||
781 | MODULE_LICENSE("GPL"); |