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9fb6bf02 BT |
1 | /* |
2 | * Copyright (c) 2013 Andrew Duggan <aduggan@synaptics.com> | |
3 | * Copyright (c) 2013 Synaptics Incorporated | |
4 | * Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@gmail.com> | |
5 | * Copyright (c) 2014 Red Hat, Inc | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the Free | |
9 | * Software Foundation; either version 2 of the License, or (at your option) | |
10 | * any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/hid.h> | |
15 | #include <linux/input.h> | |
16 | #include <linux/input/mt.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/wait.h> | |
21 | #include <linux/sched.h> | |
22 | #include "hid-ids.h" | |
23 | ||
24 | #define RMI_MOUSE_REPORT_ID 0x01 /* Mouse emulation Report */ | |
25 | #define RMI_WRITE_REPORT_ID 0x09 /* Output Report */ | |
26 | #define RMI_READ_ADDR_REPORT_ID 0x0a /* Output Report */ | |
27 | #define RMI_READ_DATA_REPORT_ID 0x0b /* Input Report */ | |
28 | #define RMI_ATTN_REPORT_ID 0x0c /* Input Report */ | |
29 | #define RMI_SET_RMI_MODE_REPORT_ID 0x0f /* Feature Report */ | |
30 | ||
31 | /* flags */ | |
af43c408 DC |
32 | #define RMI_READ_REQUEST_PENDING 0 |
33 | #define RMI_READ_DATA_PENDING 1 | |
34 | #define RMI_STARTED 2 | |
9fb6bf02 | 35 | |
09256360 AD |
36 | #define RMI_SLEEP_NORMAL 0x0 |
37 | #define RMI_SLEEP_DEEP_SLEEP 0x1 | |
38 | ||
2f43de60 AD |
39 | /* device flags */ |
40 | #define RMI_DEVICE BIT(0) | |
79364d87 | 41 | #define RMI_DEVICE_HAS_PHYS_BUTTONS BIT(1) |
2f43de60 | 42 | |
9fb6bf02 BT |
43 | enum rmi_mode_type { |
44 | RMI_MODE_OFF = 0, | |
45 | RMI_MODE_ATTN_REPORTS = 1, | |
46 | RMI_MODE_NO_PACKED_ATTN_REPORTS = 2, | |
47 | }; | |
48 | ||
49 | struct rmi_function { | |
50 | unsigned page; /* page of the function */ | |
51 | u16 query_base_addr; /* base address for queries */ | |
52 | u16 command_base_addr; /* base address for commands */ | |
53 | u16 control_base_addr; /* base address for controls */ | |
54 | u16 data_base_addr; /* base address for datas */ | |
55 | unsigned int interrupt_base; /* cross-function interrupt number | |
56 | * (uniq in the device)*/ | |
57 | unsigned int interrupt_count; /* number of interrupts */ | |
58 | unsigned int report_size; /* size of a report */ | |
59 | unsigned long irq_mask; /* mask of the interrupts | |
60 | * (to be applied against ATTN IRQ) */ | |
61 | }; | |
62 | ||
63 | /** | |
64 | * struct rmi_data - stores information for hid communication | |
65 | * | |
66 | * @page_mutex: Locks current page to avoid changing pages in unexpected ways. | |
67 | * @page: Keeps track of the current virtual page | |
68 | * | |
69 | * @wait: Used for waiting for read data | |
70 | * | |
71 | * @writeReport: output buffer when writing RMI registers | |
72 | * @readReport: input buffer when reading RMI registers | |
73 | * | |
74 | * @input_report_size: size of an input report (advertised by HID) | |
75 | * @output_report_size: size of an output report (advertised by HID) | |
76 | * | |
77 | * @flags: flags for the current device (started, reading, etc...) | |
78 | * | |
79 | * @f11: placeholder of internal RMI function F11 description | |
80 | * @f30: placeholder of internal RMI function F30 description | |
81 | * | |
82 | * @max_fingers: maximum finger count reported by the device | |
83 | * @max_x: maximum x value reported by the device | |
84 | * @max_y: maximum y value reported by the device | |
85 | * | |
86 | * @gpio_led_count: count of GPIOs + LEDs reported by F30 | |
87 | * @button_count: actual physical buttons count | |
88 | * @button_mask: button mask used to decode GPIO ATTN reports | |
89 | * @button_state_mask: pull state of the buttons | |
90 | * | |
91 | * @input: pointer to the kernel input device | |
92 | * | |
93 | * @reset_work: worker which will be called in case of a mouse report | |
94 | * @hdev: pointer to the struct hid_device | |
95 | */ | |
96 | struct rmi_data { | |
97 | struct mutex page_mutex; | |
98 | int page; | |
99 | ||
100 | wait_queue_head_t wait; | |
101 | ||
102 | u8 *writeReport; | |
103 | u8 *readReport; | |
104 | ||
105 | int input_report_size; | |
106 | int output_report_size; | |
107 | ||
108 | unsigned long flags; | |
109 | ||
70e003f7 | 110 | struct rmi_function f01; |
9fb6bf02 BT |
111 | struct rmi_function f11; |
112 | struct rmi_function f30; | |
113 | ||
114 | unsigned int max_fingers; | |
115 | unsigned int max_x; | |
116 | unsigned int max_y; | |
117 | unsigned int x_size_mm; | |
118 | unsigned int y_size_mm; | |
119 | ||
120 | unsigned int gpio_led_count; | |
121 | unsigned int button_count; | |
122 | unsigned long button_mask; | |
123 | unsigned long button_state_mask; | |
124 | ||
125 | struct input_dev *input; | |
126 | ||
127 | struct work_struct reset_work; | |
128 | struct hid_device *hdev; | |
2f43de60 AD |
129 | |
130 | unsigned long device_flags; | |
70e003f7 | 131 | unsigned long firmware_id; |
09256360 AD |
132 | |
133 | u8 f01_ctrl0; | |
9fb6bf02 BT |
134 | }; |
135 | ||
136 | #define RMI_PAGE(addr) (((addr) >> 8) & 0xff) | |
137 | ||
138 | static int rmi_write_report(struct hid_device *hdev, u8 *report, int len); | |
139 | ||
140 | /** | |
141 | * rmi_set_page - Set RMI page | |
142 | * @hdev: The pointer to the hid_device struct | |
143 | * @page: The new page address. | |
144 | * | |
145 | * RMI devices have 16-bit addressing, but some of the physical | |
146 | * implementations (like SMBus) only have 8-bit addressing. So RMI implements | |
147 | * a page address at 0xff of every page so we can reliable page addresses | |
148 | * every 256 registers. | |
149 | * | |
150 | * The page_mutex lock must be held when this function is entered. | |
151 | * | |
152 | * Returns zero on success, non-zero on failure. | |
153 | */ | |
154 | static int rmi_set_page(struct hid_device *hdev, u8 page) | |
155 | { | |
156 | struct rmi_data *data = hid_get_drvdata(hdev); | |
157 | int retval; | |
158 | ||
159 | data->writeReport[0] = RMI_WRITE_REPORT_ID; | |
160 | data->writeReport[1] = 1; | |
161 | data->writeReport[2] = 0xFF; | |
162 | data->writeReport[4] = page; | |
163 | ||
164 | retval = rmi_write_report(hdev, data->writeReport, | |
165 | data->output_report_size); | |
166 | if (retval != data->output_report_size) { | |
167 | dev_err(&hdev->dev, | |
168 | "%s: set page failed: %d.", __func__, retval); | |
169 | return retval; | |
170 | } | |
171 | ||
172 | data->page = page; | |
173 | return 0; | |
174 | } | |
175 | ||
176 | static int rmi_set_mode(struct hid_device *hdev, u8 mode) | |
177 | { | |
178 | int ret; | |
179 | u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode}; | |
180 | ||
181 | ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, txbuf, | |
182 | sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
183 | if (ret < 0) { | |
184 | dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode, | |
185 | ret); | |
186 | return ret; | |
187 | } | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
192 | static int rmi_write_report(struct hid_device *hdev, u8 *report, int len) | |
193 | { | |
194 | int ret; | |
195 | ||
196 | ret = hid_hw_output_report(hdev, (void *)report, len); | |
197 | if (ret < 0) { | |
198 | dev_err(&hdev->dev, "failed to write hid report (%d)\n", ret); | |
199 | return ret; | |
200 | } | |
201 | ||
202 | return ret; | |
203 | } | |
204 | ||
205 | static int rmi_read_block(struct hid_device *hdev, u16 addr, void *buf, | |
206 | const int len) | |
207 | { | |
208 | struct rmi_data *data = hid_get_drvdata(hdev); | |
209 | int ret; | |
210 | int bytes_read; | |
211 | int bytes_needed; | |
212 | int retries; | |
213 | int read_input_count; | |
214 | ||
215 | mutex_lock(&data->page_mutex); | |
216 | ||
217 | if (RMI_PAGE(addr) != data->page) { | |
218 | ret = rmi_set_page(hdev, RMI_PAGE(addr)); | |
219 | if (ret < 0) | |
220 | goto exit; | |
221 | } | |
222 | ||
223 | for (retries = 5; retries > 0; retries--) { | |
224 | data->writeReport[0] = RMI_READ_ADDR_REPORT_ID; | |
225 | data->writeReport[1] = 0; /* old 1 byte read count */ | |
226 | data->writeReport[2] = addr & 0xFF; | |
227 | data->writeReport[3] = (addr >> 8) & 0xFF; | |
228 | data->writeReport[4] = len & 0xFF; | |
229 | data->writeReport[5] = (len >> 8) & 0xFF; | |
230 | ||
231 | set_bit(RMI_READ_REQUEST_PENDING, &data->flags); | |
232 | ||
233 | ret = rmi_write_report(hdev, data->writeReport, | |
234 | data->output_report_size); | |
235 | if (ret != data->output_report_size) { | |
236 | clear_bit(RMI_READ_REQUEST_PENDING, &data->flags); | |
237 | dev_err(&hdev->dev, | |
238 | "failed to write request output report (%d)\n", | |
239 | ret); | |
240 | goto exit; | |
241 | } | |
242 | ||
243 | bytes_read = 0; | |
244 | bytes_needed = len; | |
245 | while (bytes_read < len) { | |
246 | if (!wait_event_timeout(data->wait, | |
247 | test_bit(RMI_READ_DATA_PENDING, &data->flags), | |
248 | msecs_to_jiffies(1000))) { | |
249 | hid_warn(hdev, "%s: timeout elapsed\n", | |
250 | __func__); | |
251 | ret = -EAGAIN; | |
252 | break; | |
253 | } | |
254 | ||
255 | read_input_count = data->readReport[1]; | |
256 | memcpy(buf + bytes_read, &data->readReport[2], | |
257 | read_input_count < bytes_needed ? | |
258 | read_input_count : bytes_needed); | |
259 | ||
260 | bytes_read += read_input_count; | |
261 | bytes_needed -= read_input_count; | |
262 | clear_bit(RMI_READ_DATA_PENDING, &data->flags); | |
263 | } | |
264 | ||
265 | if (ret >= 0) { | |
266 | ret = 0; | |
267 | break; | |
268 | } | |
269 | } | |
270 | ||
271 | exit: | |
272 | clear_bit(RMI_READ_REQUEST_PENDING, &data->flags); | |
273 | mutex_unlock(&data->page_mutex); | |
274 | return ret; | |
275 | } | |
276 | ||
277 | static inline int rmi_read(struct hid_device *hdev, u16 addr, void *buf) | |
278 | { | |
279 | return rmi_read_block(hdev, addr, buf, 1); | |
280 | } | |
281 | ||
dd8df284 AD |
282 | static int rmi_write_block(struct hid_device *hdev, u16 addr, void *buf, |
283 | const int len) | |
284 | { | |
285 | struct rmi_data *data = hid_get_drvdata(hdev); | |
286 | int ret; | |
287 | ||
288 | mutex_lock(&data->page_mutex); | |
289 | ||
290 | if (RMI_PAGE(addr) != data->page) { | |
291 | ret = rmi_set_page(hdev, RMI_PAGE(addr)); | |
292 | if (ret < 0) | |
293 | goto exit; | |
294 | } | |
295 | ||
296 | data->writeReport[0] = RMI_WRITE_REPORT_ID; | |
297 | data->writeReport[1] = len; | |
298 | data->writeReport[2] = addr & 0xFF; | |
299 | data->writeReport[3] = (addr >> 8) & 0xFF; | |
300 | memcpy(&data->writeReport[4], buf, len); | |
301 | ||
302 | ret = rmi_write_report(hdev, data->writeReport, | |
303 | data->output_report_size); | |
304 | if (ret < 0) { | |
305 | dev_err(&hdev->dev, | |
306 | "failed to write request output report (%d)\n", | |
307 | ret); | |
308 | goto exit; | |
309 | } | |
310 | ret = 0; | |
311 | ||
312 | exit: | |
313 | mutex_unlock(&data->page_mutex); | |
314 | return ret; | |
315 | } | |
316 | ||
317 | static inline int rmi_write(struct hid_device *hdev, u16 addr, void *buf) | |
318 | { | |
319 | return rmi_write_block(hdev, addr, buf, 1); | |
320 | } | |
321 | ||
9fb6bf02 BT |
322 | static void rmi_f11_process_touch(struct rmi_data *hdata, int slot, |
323 | u8 finger_state, u8 *touch_data) | |
324 | { | |
325 | int x, y, wx, wy; | |
326 | int wide, major, minor; | |
327 | int z; | |
328 | ||
329 | input_mt_slot(hdata->input, slot); | |
330 | input_mt_report_slot_state(hdata->input, MT_TOOL_FINGER, | |
331 | finger_state == 0x01); | |
332 | if (finger_state == 0x01) { | |
876e7a8a | 333 | x = (touch_data[0] << 4) | (touch_data[2] & 0x0F); |
9fb6bf02 | 334 | y = (touch_data[1] << 4) | (touch_data[2] >> 4); |
876e7a8a | 335 | wx = touch_data[3] & 0x0F; |
9fb6bf02 BT |
336 | wy = touch_data[3] >> 4; |
337 | wide = (wx > wy); | |
338 | major = max(wx, wy); | |
339 | minor = min(wx, wy); | |
340 | z = touch_data[4]; | |
341 | ||
342 | /* y is inverted */ | |
343 | y = hdata->max_y - y; | |
344 | ||
345 | input_event(hdata->input, EV_ABS, ABS_MT_POSITION_X, x); | |
346 | input_event(hdata->input, EV_ABS, ABS_MT_POSITION_Y, y); | |
347 | input_event(hdata->input, EV_ABS, ABS_MT_ORIENTATION, wide); | |
348 | input_event(hdata->input, EV_ABS, ABS_MT_PRESSURE, z); | |
349 | input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); | |
350 | input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); | |
351 | } | |
352 | } | |
353 | ||
354 | static void rmi_reset_work(struct work_struct *work) | |
355 | { | |
356 | struct rmi_data *hdata = container_of(work, struct rmi_data, | |
357 | reset_work); | |
358 | ||
359 | /* switch the device to RMI if we receive a generic mouse report */ | |
360 | rmi_set_mode(hdata->hdev, RMI_MODE_ATTN_REPORTS); | |
361 | } | |
362 | ||
363 | static inline int rmi_schedule_reset(struct hid_device *hdev) | |
364 | { | |
365 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
366 | return schedule_work(&hdata->reset_work); | |
367 | } | |
368 | ||
369 | static int rmi_f11_input_event(struct hid_device *hdev, u8 irq, u8 *data, | |
370 | int size) | |
371 | { | |
372 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
373 | int offset; | |
374 | int i; | |
375 | ||
5b65c2a0 | 376 | if (!(irq & hdata->f11.irq_mask) || size <= 0) |
9fb6bf02 BT |
377 | return 0; |
378 | ||
379 | offset = (hdata->max_fingers >> 2) + 1; | |
380 | for (i = 0; i < hdata->max_fingers; i++) { | |
381 | int fs_byte_position = i >> 2; | |
382 | int fs_bit_position = (i & 0x3) << 1; | |
383 | int finger_state = (data[fs_byte_position] >> fs_bit_position) & | |
384 | 0x03; | |
5b65c2a0 BT |
385 | int position = offset + 5 * i; |
386 | ||
387 | if (position + 5 > size) { | |
388 | /* partial report, go on with what we received */ | |
389 | printk_once(KERN_WARNING | |
390 | "%s %s: Detected incomplete finger report. Finger reports may occasionally get dropped on this platform.\n", | |
391 | dev_driver_string(&hdev->dev), | |
392 | dev_name(&hdev->dev)); | |
393 | hid_dbg(hdev, "Incomplete finger report\n"); | |
394 | break; | |
395 | } | |
9fb6bf02 | 396 | |
5b65c2a0 | 397 | rmi_f11_process_touch(hdata, i, finger_state, &data[position]); |
9fb6bf02 BT |
398 | } |
399 | input_mt_sync_frame(hdata->input); | |
400 | input_sync(hdata->input); | |
401 | return hdata->f11.report_size; | |
402 | } | |
403 | ||
404 | static int rmi_f30_input_event(struct hid_device *hdev, u8 irq, u8 *data, | |
405 | int size) | |
406 | { | |
407 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
408 | int i; | |
409 | int button = 0; | |
410 | bool value; | |
411 | ||
412 | if (!(irq & hdata->f30.irq_mask)) | |
413 | return 0; | |
414 | ||
5b65c2a0 BT |
415 | if (size < (int)hdata->f30.report_size) { |
416 | hid_warn(hdev, "Click Button pressed, but the click data is missing\n"); | |
417 | return 0; | |
418 | } | |
419 | ||
9fb6bf02 BT |
420 | for (i = 0; i < hdata->gpio_led_count; i++) { |
421 | if (test_bit(i, &hdata->button_mask)) { | |
422 | value = (data[i / 8] >> (i & 0x07)) & BIT(0); | |
423 | if (test_bit(i, &hdata->button_state_mask)) | |
424 | value = !value; | |
425 | input_event(hdata->input, EV_KEY, BTN_LEFT + button++, | |
426 | value); | |
427 | } | |
428 | } | |
429 | return hdata->f30.report_size; | |
430 | } | |
431 | ||
432 | static int rmi_input_event(struct hid_device *hdev, u8 *data, int size) | |
433 | { | |
434 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
435 | unsigned long irq_mask = 0; | |
436 | unsigned index = 2; | |
437 | ||
438 | if (!(test_bit(RMI_STARTED, &hdata->flags))) | |
439 | return 0; | |
440 | ||
441 | irq_mask |= hdata->f11.irq_mask; | |
442 | irq_mask |= hdata->f30.irq_mask; | |
443 | ||
444 | if (data[1] & ~irq_mask) | |
01a5f8a4 | 445 | hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n", |
9fb6bf02 BT |
446 | data[1] & ~irq_mask, __FILE__, __LINE__); |
447 | ||
448 | if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) { | |
449 | index += rmi_f11_input_event(hdev, data[1], &data[index], | |
450 | size - index); | |
451 | index += rmi_f30_input_event(hdev, data[1], &data[index], | |
452 | size - index); | |
453 | } else { | |
454 | index += rmi_f30_input_event(hdev, data[1], &data[index], | |
455 | size - index); | |
456 | index += rmi_f11_input_event(hdev, data[1], &data[index], | |
457 | size - index); | |
458 | } | |
459 | ||
460 | return 1; | |
461 | } | |
462 | ||
463 | static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size) | |
464 | { | |
465 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
466 | ||
467 | if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) { | |
01a5f8a4 | 468 | hid_dbg(hdev, "no read request pending\n"); |
9fb6bf02 BT |
469 | return 0; |
470 | } | |
471 | ||
472 | memcpy(hdata->readReport, data, size < hdata->input_report_size ? | |
473 | size : hdata->input_report_size); | |
474 | set_bit(RMI_READ_DATA_PENDING, &hdata->flags); | |
475 | wake_up(&hdata->wait); | |
476 | ||
477 | return 1; | |
478 | } | |
479 | ||
5b65c2a0 BT |
480 | static int rmi_check_sanity(struct hid_device *hdev, u8 *data, int size) |
481 | { | |
482 | int valid_size = size; | |
483 | /* | |
484 | * On the Dell XPS 13 9333, the bus sometimes get confused and fills | |
485 | * the report with a sentinel value "ff". Synaptics told us that such | |
486 | * behavior does not comes from the touchpad itself, so we filter out | |
487 | * such reports here. | |
488 | */ | |
489 | ||
490 | while ((data[valid_size - 1] == 0xff) && valid_size > 0) | |
491 | valid_size--; | |
492 | ||
493 | return valid_size; | |
494 | } | |
495 | ||
9fb6bf02 BT |
496 | static int rmi_raw_event(struct hid_device *hdev, |
497 | struct hid_report *report, u8 *data, int size) | |
498 | { | |
5b65c2a0 BT |
499 | size = rmi_check_sanity(hdev, data, size); |
500 | if (size < 2) | |
501 | return 0; | |
502 | ||
9fb6bf02 BT |
503 | switch (data[0]) { |
504 | case RMI_READ_DATA_REPORT_ID: | |
505 | return rmi_read_data_event(hdev, data, size); | |
506 | case RMI_ATTN_REPORT_ID: | |
507 | return rmi_input_event(hdev, data, size); | |
2f43de60 AD |
508 | default: |
509 | return 1; | |
510 | } | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int rmi_event(struct hid_device *hdev, struct hid_field *field, | |
516 | struct hid_usage *usage, __s32 value) | |
517 | { | |
518 | struct rmi_data *data = hid_get_drvdata(hdev); | |
519 | ||
520 | if ((data->device_flags & RMI_DEVICE) && | |
521 | (field->application == HID_GD_POINTER || | |
522 | field->application == HID_GD_MOUSE)) { | |
79364d87 AD |
523 | if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) { |
524 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) | |
525 | return 0; | |
526 | ||
527 | if ((usage->hid == HID_GD_X || usage->hid == HID_GD_Y) | |
528 | && !value) | |
529 | return 1; | |
530 | } | |
531 | ||
9fb6bf02 | 532 | rmi_schedule_reset(hdev); |
2f43de60 | 533 | return 1; |
9fb6bf02 BT |
534 | } |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
a278e268 | 539 | #ifdef CONFIG_PM |
09256360 AD |
540 | static int rmi_set_sleep_mode(struct hid_device *hdev, int sleep_mode) |
541 | { | |
542 | struct rmi_data *data = hid_get_drvdata(hdev); | |
543 | int ret; | |
544 | u8 f01_ctrl0; | |
545 | ||
546 | f01_ctrl0 = (data->f01_ctrl0 & ~0x3) | sleep_mode; | |
547 | ||
548 | ret = rmi_write(hdev, data->f01.control_base_addr, | |
549 | &f01_ctrl0); | |
550 | if (ret) { | |
551 | hid_err(hdev, "can not write sleep mode\n"); | |
552 | return ret; | |
553 | } | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
558 | static int rmi_suspend(struct hid_device *hdev, pm_message_t message) | |
559 | { | |
560 | if (!device_may_wakeup(hdev->dev.parent)) | |
561 | return rmi_set_sleep_mode(hdev, RMI_SLEEP_DEEP_SLEEP); | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
9fb6bf02 BT |
566 | static int rmi_post_reset(struct hid_device *hdev) |
567 | { | |
09256360 AD |
568 | int ret; |
569 | ||
570 | ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); | |
571 | if (ret) { | |
572 | hid_err(hdev, "can not set rmi mode\n"); | |
573 | return ret; | |
574 | } | |
575 | ||
576 | if (!device_may_wakeup(hdev->dev.parent)) { | |
577 | ret = rmi_set_sleep_mode(hdev, RMI_SLEEP_NORMAL); | |
578 | if (ret) { | |
579 | hid_err(hdev, "can not write sleep mode\n"); | |
580 | return ret; | |
581 | } | |
582 | } | |
583 | ||
584 | return ret; | |
9fb6bf02 BT |
585 | } |
586 | ||
587 | static int rmi_post_resume(struct hid_device *hdev) | |
588 | { | |
589 | return rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); | |
590 | } | |
a278e268 | 591 | #endif /* CONFIG_PM */ |
9fb6bf02 BT |
592 | |
593 | #define RMI4_MAX_PAGE 0xff | |
594 | #define RMI4_PAGE_SIZE 0x0100 | |
595 | ||
596 | #define PDT_START_SCAN_LOCATION 0x00e9 | |
597 | #define PDT_END_SCAN_LOCATION 0x0005 | |
598 | #define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff) | |
599 | ||
600 | struct pdt_entry { | |
601 | u8 query_base_addr:8; | |
602 | u8 command_base_addr:8; | |
603 | u8 control_base_addr:8; | |
604 | u8 data_base_addr:8; | |
605 | u8 interrupt_source_count:3; | |
606 | u8 bits3and4:2; | |
607 | u8 function_version:2; | |
608 | u8 bit7:1; | |
609 | u8 function_number:8; | |
610 | } __attribute__((__packed__)); | |
611 | ||
612 | static inline unsigned long rmi_gen_mask(unsigned irq_base, unsigned irq_count) | |
613 | { | |
614 | return GENMASK(irq_count + irq_base - 1, irq_base); | |
615 | } | |
616 | ||
617 | static void rmi_register_function(struct rmi_data *data, | |
618 | struct pdt_entry *pdt_entry, int page, unsigned interrupt_count) | |
619 | { | |
620 | struct rmi_function *f = NULL; | |
621 | u16 page_base = page << 8; | |
622 | ||
623 | switch (pdt_entry->function_number) { | |
70e003f7 AD |
624 | case 0x01: |
625 | f = &data->f01; | |
626 | break; | |
9fb6bf02 BT |
627 | case 0x11: |
628 | f = &data->f11; | |
629 | break; | |
630 | case 0x30: | |
631 | f = &data->f30; | |
632 | break; | |
633 | } | |
634 | ||
635 | if (f) { | |
636 | f->page = page; | |
637 | f->query_base_addr = page_base | pdt_entry->query_base_addr; | |
638 | f->command_base_addr = page_base | pdt_entry->command_base_addr; | |
639 | f->control_base_addr = page_base | pdt_entry->control_base_addr; | |
640 | f->data_base_addr = page_base | pdt_entry->data_base_addr; | |
641 | f->interrupt_base = interrupt_count; | |
642 | f->interrupt_count = pdt_entry->interrupt_source_count; | |
643 | f->irq_mask = rmi_gen_mask(f->interrupt_base, | |
644 | f->interrupt_count); | |
645 | } | |
646 | } | |
647 | ||
648 | static int rmi_scan_pdt(struct hid_device *hdev) | |
649 | { | |
650 | struct rmi_data *data = hid_get_drvdata(hdev); | |
651 | struct pdt_entry entry; | |
652 | int page; | |
653 | bool page_has_function; | |
654 | int i; | |
655 | int retval; | |
656 | int interrupt = 0; | |
657 | u16 page_start, pdt_start , pdt_end; | |
658 | ||
659 | hid_info(hdev, "Scanning PDT...\n"); | |
660 | ||
661 | for (page = 0; (page <= RMI4_MAX_PAGE); page++) { | |
662 | page_start = RMI4_PAGE_SIZE * page; | |
663 | pdt_start = page_start + PDT_START_SCAN_LOCATION; | |
664 | pdt_end = page_start + PDT_END_SCAN_LOCATION; | |
665 | ||
666 | page_has_function = false; | |
667 | for (i = pdt_start; i >= pdt_end; i -= sizeof(entry)) { | |
668 | retval = rmi_read_block(hdev, i, &entry, sizeof(entry)); | |
669 | if (retval) { | |
670 | hid_err(hdev, | |
671 | "Read of PDT entry at %#06x failed.\n", | |
672 | i); | |
673 | goto error_exit; | |
674 | } | |
675 | ||
676 | if (RMI4_END_OF_PDT(entry.function_number)) | |
677 | break; | |
678 | ||
679 | page_has_function = true; | |
680 | ||
681 | hid_info(hdev, "Found F%02X on page %#04x\n", | |
682 | entry.function_number, page); | |
683 | ||
684 | rmi_register_function(data, &entry, page, interrupt); | |
685 | interrupt += entry.interrupt_source_count; | |
686 | } | |
687 | ||
688 | if (!page_has_function) | |
689 | break; | |
690 | } | |
691 | ||
692 | hid_info(hdev, "%s: Done with PDT scan.\n", __func__); | |
693 | retval = 0; | |
694 | ||
695 | error_exit: | |
696 | return retval; | |
697 | } | |
698 | ||
70e003f7 AD |
699 | #define RMI_DEVICE_F01_BASIC_QUERY_LEN 11 |
700 | ||
701 | static int rmi_populate_f01(struct hid_device *hdev) | |
702 | { | |
703 | struct rmi_data *data = hid_get_drvdata(hdev); | |
704 | u8 basic_queries[RMI_DEVICE_F01_BASIC_QUERY_LEN]; | |
705 | u8 info[3]; | |
706 | int ret; | |
707 | bool has_query42; | |
708 | bool has_lts; | |
709 | bool has_sensor_id; | |
710 | bool has_ds4_queries = false; | |
711 | bool has_build_id_query = false; | |
712 | bool has_package_id_query = false; | |
713 | u16 query_offset = data->f01.query_base_addr; | |
714 | u16 prod_info_addr; | |
715 | u8 ds4_query_len; | |
716 | ||
717 | ret = rmi_read_block(hdev, query_offset, basic_queries, | |
718 | RMI_DEVICE_F01_BASIC_QUERY_LEN); | |
719 | if (ret) { | |
720 | hid_err(hdev, "Can not read basic queries from Function 0x1.\n"); | |
721 | return ret; | |
722 | } | |
723 | ||
724 | has_lts = !!(basic_queries[0] & BIT(2)); | |
725 | has_sensor_id = !!(basic_queries[1] & BIT(3)); | |
726 | has_query42 = !!(basic_queries[1] & BIT(7)); | |
727 | ||
728 | query_offset += 11; | |
729 | prod_info_addr = query_offset + 6; | |
730 | query_offset += 10; | |
731 | ||
732 | if (has_lts) | |
733 | query_offset += 20; | |
734 | ||
735 | if (has_sensor_id) | |
736 | query_offset++; | |
737 | ||
738 | if (has_query42) { | |
739 | ret = rmi_read(hdev, query_offset, info); | |
740 | if (ret) { | |
741 | hid_err(hdev, "Can not read query42.\n"); | |
742 | return ret; | |
743 | } | |
744 | has_ds4_queries = !!(info[0] & BIT(0)); | |
745 | query_offset++; | |
746 | } | |
747 | ||
748 | if (has_ds4_queries) { | |
749 | ret = rmi_read(hdev, query_offset, &ds4_query_len); | |
750 | if (ret) { | |
751 | hid_err(hdev, "Can not read DS4 Query length.\n"); | |
752 | return ret; | |
753 | } | |
754 | query_offset++; | |
755 | ||
756 | if (ds4_query_len > 0) { | |
757 | ret = rmi_read(hdev, query_offset, info); | |
758 | if (ret) { | |
759 | hid_err(hdev, "Can not read DS4 query.\n"); | |
760 | return ret; | |
761 | } | |
762 | ||
763 | has_package_id_query = !!(info[0] & BIT(0)); | |
764 | has_build_id_query = !!(info[0] & BIT(1)); | |
765 | } | |
766 | } | |
767 | ||
768 | if (has_package_id_query) | |
769 | prod_info_addr++; | |
770 | ||
771 | if (has_build_id_query) { | |
772 | ret = rmi_read_block(hdev, prod_info_addr, info, 3); | |
773 | if (ret) { | |
774 | hid_err(hdev, "Can not read product info.\n"); | |
775 | return ret; | |
776 | } | |
777 | ||
778 | data->firmware_id = info[1] << 8 | info[0]; | |
779 | data->firmware_id += info[2] * 65536; | |
780 | } | |
781 | ||
09256360 AD |
782 | ret = rmi_read(hdev, data->f01.control_base_addr, &data->f01_ctrl0); |
783 | ||
784 | if (ret) { | |
785 | hid_err(hdev, "can not read f01 ctrl0\n"); | |
786 | return ret; | |
787 | } | |
70e003f7 AD |
788 | return 0; |
789 | } | |
790 | ||
9fb6bf02 BT |
791 | static int rmi_populate_f11(struct hid_device *hdev) |
792 | { | |
793 | struct rmi_data *data = hid_get_drvdata(hdev); | |
794 | u8 buf[20]; | |
795 | int ret; | |
f15475c3 | 796 | bool has_query9; |
9e2c327e | 797 | bool has_query10 = false; |
f15475c3 | 798 | bool has_query11; |
9fb6bf02 | 799 | bool has_query12; |
8414947a AD |
800 | bool has_query27; |
801 | bool has_query28; | |
802 | bool has_query36 = false; | |
9fb6bf02 | 803 | bool has_physical_props; |
9e2c327e AD |
804 | bool has_gestures; |
805 | bool has_rel; | |
8414947a | 806 | bool has_data40 = false; |
05ba999f | 807 | bool has_dribble = false; |
f097deef | 808 | bool has_palm_detect = false; |
9fb6bf02 | 809 | unsigned x_size, y_size; |
8414947a | 810 | u16 query_offset; |
9fb6bf02 BT |
811 | |
812 | if (!data->f11.query_base_addr) { | |
813 | hid_err(hdev, "No 2D sensor found, giving up.\n"); | |
814 | return -ENODEV; | |
815 | } | |
816 | ||
817 | /* query 0 contains some useful information */ | |
818 | ret = rmi_read(hdev, data->f11.query_base_addr, buf); | |
819 | if (ret) { | |
820 | hid_err(hdev, "can not get query 0: %d.\n", ret); | |
821 | return ret; | |
822 | } | |
f15475c3 AD |
823 | has_query9 = !!(buf[0] & BIT(3)); |
824 | has_query11 = !!(buf[0] & BIT(4)); | |
9fb6bf02 | 825 | has_query12 = !!(buf[0] & BIT(5)); |
8414947a AD |
826 | has_query27 = !!(buf[0] & BIT(6)); |
827 | has_query28 = !!(buf[0] & BIT(7)); | |
9fb6bf02 BT |
828 | |
829 | /* query 1 to get the max number of fingers */ | |
830 | ret = rmi_read(hdev, data->f11.query_base_addr + 1, buf); | |
831 | if (ret) { | |
832 | hid_err(hdev, "can not get NumberOfFingers: %d.\n", ret); | |
833 | return ret; | |
834 | } | |
835 | data->max_fingers = (buf[0] & 0x07) + 1; | |
836 | if (data->max_fingers > 5) | |
837 | data->max_fingers = 10; | |
838 | ||
839 | data->f11.report_size = data->max_fingers * 5 + | |
840 | DIV_ROUND_UP(data->max_fingers, 4); | |
841 | ||
842 | if (!(buf[0] & BIT(4))) { | |
843 | hid_err(hdev, "No absolute events, giving up.\n"); | |
844 | return -ENODEV; | |
845 | } | |
846 | ||
9e2c327e AD |
847 | has_rel = !!(buf[0] & BIT(3)); |
848 | has_gestures = !!(buf[0] & BIT(5)); | |
849 | ||
05ba999f AD |
850 | ret = rmi_read(hdev, data->f11.query_base_addr + 5, buf); |
851 | if (ret) { | |
852 | hid_err(hdev, "can not get absolute data sources: %d.\n", ret); | |
853 | return ret; | |
854 | } | |
855 | ||
856 | has_dribble = !!(buf[0] & BIT(4)); | |
857 | ||
9fb6bf02 | 858 | /* |
9e2c327e AD |
859 | * At least 4 queries are guaranteed to be present in F11 |
860 | * +1 for query 5 which is present since absolute events are | |
861 | * reported and +1 for query 12. | |
9fb6bf02 | 862 | */ |
8414947a | 863 | query_offset = 6; |
9e2c327e AD |
864 | |
865 | if (has_rel) | |
8414947a | 866 | ++query_offset; /* query 6 is present */ |
9e2c327e | 867 | |
cabd9b5f AD |
868 | if (has_gestures) { |
869 | /* query 8 to find out if query 10 exists */ | |
870 | ret = rmi_read(hdev, | |
871 | data->f11.query_base_addr + query_offset + 1, buf); | |
872 | if (ret) { | |
873 | hid_err(hdev, "can not read gesture information: %d.\n", | |
874 | ret); | |
875 | return ret; | |
876 | } | |
f097deef | 877 | has_palm_detect = !!(buf[0] & BIT(0)); |
cabd9b5f AD |
878 | has_query10 = !!(buf[0] & BIT(2)); |
879 | ||
8414947a | 880 | query_offset += 2; /* query 7 and 8 are present */ |
cabd9b5f | 881 | } |
f15475c3 AD |
882 | |
883 | if (has_query9) | |
8414947a | 884 | ++query_offset; |
f15475c3 AD |
885 | |
886 | if (has_query10) | |
8414947a | 887 | ++query_offset; |
f15475c3 AD |
888 | |
889 | if (has_query11) | |
8414947a | 890 | ++query_offset; |
f15475c3 AD |
891 | |
892 | /* query 12 to know if the physical properties are reported */ | |
9fb6bf02 | 893 | if (has_query12) { |
f15475c3 | 894 | ret = rmi_read(hdev, data->f11.query_base_addr |
8414947a | 895 | + query_offset, buf); |
9fb6bf02 BT |
896 | if (ret) { |
897 | hid_err(hdev, "can not get query 12: %d.\n", ret); | |
898 | return ret; | |
899 | } | |
900 | has_physical_props = !!(buf[0] & BIT(5)); | |
901 | ||
902 | if (has_physical_props) { | |
8414947a | 903 | query_offset += 1; |
9fb6bf02 | 904 | ret = rmi_read_block(hdev, |
f15475c3 | 905 | data->f11.query_base_addr |
8414947a | 906 | + query_offset, buf, 4); |
9fb6bf02 BT |
907 | if (ret) { |
908 | hid_err(hdev, "can not read query 15-18: %d.\n", | |
909 | ret); | |
910 | return ret; | |
911 | } | |
912 | ||
913 | x_size = buf[0] | (buf[1] << 8); | |
914 | y_size = buf[2] | (buf[3] << 8); | |
915 | ||
916 | data->x_size_mm = DIV_ROUND_CLOSEST(x_size, 10); | |
917 | data->y_size_mm = DIV_ROUND_CLOSEST(y_size, 10); | |
918 | ||
919 | hid_info(hdev, "%s: size in mm: %d x %d\n", | |
920 | __func__, data->x_size_mm, data->y_size_mm); | |
8414947a AD |
921 | |
922 | /* | |
923 | * query 15 - 18 contain the size of the sensor | |
924 | * and query 19 - 26 contain bezel dimensions | |
925 | */ | |
926 | query_offset += 12; | |
927 | } | |
928 | } | |
929 | ||
930 | if (has_query27) | |
931 | ++query_offset; | |
932 | ||
933 | if (has_query28) { | |
934 | ret = rmi_read(hdev, data->f11.query_base_addr | |
935 | + query_offset, buf); | |
936 | if (ret) { | |
937 | hid_err(hdev, "can not get query 28: %d.\n", ret); | |
938 | return ret; | |
939 | } | |
940 | ||
941 | has_query36 = !!(buf[0] & BIT(6)); | |
942 | } | |
943 | ||
944 | if (has_query36) { | |
945 | query_offset += 2; | |
946 | ret = rmi_read(hdev, data->f11.query_base_addr | |
947 | + query_offset, buf); | |
948 | if (ret) { | |
949 | hid_err(hdev, "can not get query 36: %d.\n", ret); | |
950 | return ret; | |
9fb6bf02 | 951 | } |
8414947a AD |
952 | |
953 | has_data40 = !!(buf[0] & BIT(5)); | |
9fb6bf02 BT |
954 | } |
955 | ||
8414947a AD |
956 | |
957 | if (has_data40) | |
958 | data->f11.report_size += data->max_fingers * 2; | |
959 | ||
dcce5837 BT |
960 | /* |
961 | * retrieve the ctrl registers | |
962 | * the ctrl register has a size of 20 but a fw bug split it into 16 + 4, | |
963 | * and there is no way to know if the first 20 bytes are here or not. | |
f097deef | 964 | * We use only the first 12 bytes, so get only them. |
dcce5837 | 965 | */ |
f097deef | 966 | ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, 12); |
9fb6bf02 | 967 | if (ret) { |
f097deef | 968 | hid_err(hdev, "can not read ctrl block of size 11: %d.\n", ret); |
9fb6bf02 BT |
969 | return ret; |
970 | } | |
971 | ||
972 | data->max_x = buf[6] | (buf[7] << 8); | |
973 | data->max_y = buf[8] | (buf[9] << 8); | |
974 | ||
05ba999f AD |
975 | if (has_dribble) { |
976 | buf[0] = buf[0] & ~BIT(6); | |
977 | ret = rmi_write(hdev, data->f11.control_base_addr, buf); | |
978 | if (ret) { | |
979 | hid_err(hdev, "can not write to control reg 0: %d.\n", | |
980 | ret); | |
981 | return ret; | |
982 | } | |
983 | } | |
984 | ||
f097deef AD |
985 | if (has_palm_detect) { |
986 | buf[11] = buf[11] & ~BIT(0); | |
987 | ret = rmi_write(hdev, data->f11.control_base_addr + 11, | |
988 | &buf[11]); | |
989 | if (ret) { | |
990 | hid_err(hdev, "can not write to control reg 11: %d.\n", | |
991 | ret); | |
992 | return ret; | |
993 | } | |
994 | } | |
995 | ||
9fb6bf02 BT |
996 | return 0; |
997 | } | |
998 | ||
999 | static int rmi_populate_f30(struct hid_device *hdev) | |
1000 | { | |
1001 | struct rmi_data *data = hid_get_drvdata(hdev); | |
1002 | u8 buf[20]; | |
1003 | int ret; | |
1004 | bool has_gpio, has_led; | |
1005 | unsigned bytes_per_ctrl; | |
1006 | u8 ctrl2_addr; | |
1007 | int ctrl2_3_length; | |
1008 | int i; | |
1009 | ||
1010 | /* function F30 is for physical buttons */ | |
1011 | if (!data->f30.query_base_addr) { | |
1012 | hid_err(hdev, "No GPIO/LEDs found, giving up.\n"); | |
1013 | return -ENODEV; | |
1014 | } | |
1015 | ||
1016 | ret = rmi_read_block(hdev, data->f30.query_base_addr, buf, 2); | |
1017 | if (ret) { | |
1018 | hid_err(hdev, "can not get F30 query registers: %d.\n", ret); | |
1019 | return ret; | |
1020 | } | |
1021 | ||
1022 | has_gpio = !!(buf[0] & BIT(3)); | |
1023 | has_led = !!(buf[0] & BIT(2)); | |
1024 | data->gpio_led_count = buf[1] & 0x1f; | |
1025 | ||
1026 | /* retrieve ctrl 2 & 3 registers */ | |
1027 | bytes_per_ctrl = (data->gpio_led_count + 7) / 8; | |
1028 | /* Ctrl0 is present only if both has_gpio and has_led are set*/ | |
1029 | ctrl2_addr = (has_gpio && has_led) ? bytes_per_ctrl : 0; | |
1030 | /* Ctrl1 is always be present */ | |
1031 | ctrl2_addr += bytes_per_ctrl; | |
1032 | ctrl2_3_length = 2 * bytes_per_ctrl; | |
1033 | ||
1034 | data->f30.report_size = bytes_per_ctrl; | |
1035 | ||
1036 | ret = rmi_read_block(hdev, data->f30.control_base_addr + ctrl2_addr, | |
1037 | buf, ctrl2_3_length); | |
1038 | if (ret) { | |
1039 | hid_err(hdev, "can not read ctrl 2&3 block of size %d: %d.\n", | |
1040 | ctrl2_3_length, ret); | |
1041 | return ret; | |
1042 | } | |
1043 | ||
1044 | for (i = 0; i < data->gpio_led_count; i++) { | |
1045 | int byte_position = i >> 3; | |
1046 | int bit_position = i & 0x07; | |
1047 | u8 dir_byte = buf[byte_position]; | |
1048 | u8 data_byte = buf[byte_position + bytes_per_ctrl]; | |
1049 | bool dir = (dir_byte >> bit_position) & BIT(0); | |
1050 | bool dat = (data_byte >> bit_position) & BIT(0); | |
1051 | ||
1052 | if (dir == 0) { | |
1053 | /* input mode */ | |
1054 | if (dat) { | |
1055 | /* actual buttons have pull up resistor */ | |
1056 | data->button_count++; | |
1057 | set_bit(i, &data->button_mask); | |
1058 | set_bit(i, &data->button_state_mask); | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | } | |
1063 | ||
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static int rmi_populate(struct hid_device *hdev) | |
1068 | { | |
10e87dc4 | 1069 | struct rmi_data *data = hid_get_drvdata(hdev); |
9fb6bf02 BT |
1070 | int ret; |
1071 | ||
1072 | ret = rmi_scan_pdt(hdev); | |
1073 | if (ret) { | |
1074 | hid_err(hdev, "PDT scan failed with code %d.\n", ret); | |
1075 | return ret; | |
1076 | } | |
1077 | ||
70e003f7 AD |
1078 | ret = rmi_populate_f01(hdev); |
1079 | if (ret) { | |
1080 | hid_err(hdev, "Error while initializing F01 (%d).\n", ret); | |
1081 | return ret; | |
1082 | } | |
1083 | ||
9fb6bf02 BT |
1084 | ret = rmi_populate_f11(hdev); |
1085 | if (ret) { | |
1086 | hid_err(hdev, "Error while initializing F11 (%d).\n", ret); | |
1087 | return ret; | |
1088 | } | |
1089 | ||
10e87dc4 AD |
1090 | if (!(data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)) { |
1091 | ret = rmi_populate_f30(hdev); | |
1092 | if (ret) | |
1093 | hid_warn(hdev, "Error while initializing F30 (%d).\n", ret); | |
1094 | } | |
9fb6bf02 BT |
1095 | |
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | static void rmi_input_configured(struct hid_device *hdev, struct hid_input *hi) | |
1100 | { | |
1101 | struct rmi_data *data = hid_get_drvdata(hdev); | |
1102 | struct input_dev *input = hi->input; | |
1103 | int ret; | |
1104 | int res_x, res_y, i; | |
1105 | ||
1106 | data->input = input; | |
1107 | ||
1108 | hid_dbg(hdev, "Opening low level driver\n"); | |
1109 | ret = hid_hw_open(hdev); | |
1110 | if (ret) | |
1111 | return; | |
1112 | ||
2f43de60 AD |
1113 | if (!(data->device_flags & RMI_DEVICE)) |
1114 | return; | |
1115 | ||
9fb6bf02 BT |
1116 | /* Allow incoming hid reports */ |
1117 | hid_device_io_start(hdev); | |
1118 | ||
1119 | ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); | |
1120 | if (ret < 0) { | |
1121 | dev_err(&hdev->dev, "failed to set rmi mode\n"); | |
1122 | goto exit; | |
1123 | } | |
1124 | ||
1125 | ret = rmi_set_page(hdev, 0); | |
1126 | if (ret < 0) { | |
1127 | dev_err(&hdev->dev, "failed to set page select to 0.\n"); | |
1128 | goto exit; | |
1129 | } | |
1130 | ||
1131 | ret = rmi_populate(hdev); | |
1132 | if (ret) | |
1133 | goto exit; | |
1134 | ||
70e003f7 AD |
1135 | hid_info(hdev, "firmware id: %ld\n", data->firmware_id); |
1136 | ||
9fb6bf02 BT |
1137 | __set_bit(EV_ABS, input->evbit); |
1138 | input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->max_x, 0, 0); | |
1139 | input_set_abs_params(input, ABS_MT_POSITION_Y, 1, data->max_y, 0, 0); | |
1140 | ||
b668fdce | 1141 | if (data->x_size_mm && data->y_size_mm) { |
9fb6bf02 | 1142 | res_x = (data->max_x - 1) / data->x_size_mm; |
b668fdce | 1143 | res_y = (data->max_y - 1) / data->y_size_mm; |
9fb6bf02 BT |
1144 | |
1145 | input_abs_set_res(input, ABS_MT_POSITION_X, res_x); | |
1146 | input_abs_set_res(input, ABS_MT_POSITION_Y, res_y); | |
1147 | } | |
1148 | ||
1149 | input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0); | |
1150 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xff, 0, 0); | |
1151 | input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 0x0f, 0, 0); | |
1152 | input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 0x0f, 0, 0); | |
1153 | ||
1154 | input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); | |
1155 | ||
1156 | if (data->button_count) { | |
1157 | __set_bit(EV_KEY, input->evbit); | |
1158 | for (i = 0; i < data->button_count; i++) | |
1159 | __set_bit(BTN_LEFT + i, input->keybit); | |
1160 | ||
1161 | if (data->button_count == 1) | |
1162 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); | |
1163 | } | |
1164 | ||
1165 | set_bit(RMI_STARTED, &data->flags); | |
1166 | ||
1167 | exit: | |
1168 | hid_device_io_stop(hdev); | |
1169 | hid_hw_close(hdev); | |
1170 | } | |
1171 | ||
1172 | static int rmi_input_mapping(struct hid_device *hdev, | |
1173 | struct hid_input *hi, struct hid_field *field, | |
1174 | struct hid_usage *usage, unsigned long **bit, int *max) | |
1175 | { | |
2f43de60 AD |
1176 | struct rmi_data *data = hid_get_drvdata(hdev); |
1177 | ||
1178 | /* | |
1179 | * we want to make HID ignore the advertised HID collection | |
1180 | * for RMI deivces | |
1181 | */ | |
79364d87 AD |
1182 | if (data->device_flags & RMI_DEVICE) { |
1183 | if ((data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) && | |
1184 | ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)) | |
1185 | return 0; | |
1186 | ||
2f43de60 | 1187 | return -1; |
79364d87 | 1188 | } |
2f43de60 AD |
1189 | |
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static int rmi_check_valid_report_id(struct hid_device *hdev, unsigned type, | |
1194 | unsigned id, struct hid_report **report) | |
1195 | { | |
1196 | int i; | |
1197 | ||
1198 | *report = hdev->report_enum[type].report_id_hash[id]; | |
1199 | if (*report) { | |
1200 | for (i = 0; i < (*report)->maxfield; i++) { | |
1201 | unsigned app = (*report)->field[i]->application; | |
1202 | if ((app & HID_USAGE_PAGE) >= HID_UP_MSVENDOR) | |
1203 | return 1; | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | return 0; | |
9fb6bf02 BT |
1208 | } |
1209 | ||
1210 | static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
1211 | { | |
1212 | struct rmi_data *data = NULL; | |
1213 | int ret; | |
1214 | size_t alloc_size; | |
dd3edeb6 AD |
1215 | struct hid_report *input_report; |
1216 | struct hid_report *output_report; | |
2f43de60 | 1217 | struct hid_report *feature_report; |
9fb6bf02 BT |
1218 | |
1219 | data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_data), GFP_KERNEL); | |
1220 | if (!data) | |
1221 | return -ENOMEM; | |
1222 | ||
1223 | INIT_WORK(&data->reset_work, rmi_reset_work); | |
1224 | data->hdev = hdev; | |
1225 | ||
1226 | hid_set_drvdata(hdev, data); | |
1227 | ||
1228 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
1229 | ||
1230 | ret = hid_parse(hdev); | |
1231 | if (ret) { | |
1232 | hid_err(hdev, "parse failed\n"); | |
1233 | return ret; | |
1234 | } | |
1235 | ||
79364d87 AD |
1236 | if (id->driver_data) |
1237 | data->device_flags = id->driver_data; | |
1238 | ||
2f43de60 AD |
1239 | /* |
1240 | * Check for the RMI specific report ids. If they are misisng | |
1241 | * simply return and let the events be processed by hid-input | |
1242 | */ | |
1243 | if (!rmi_check_valid_report_id(hdev, HID_FEATURE_REPORT, | |
1244 | RMI_SET_RMI_MODE_REPORT_ID, &feature_report)) { | |
1245 | hid_dbg(hdev, "device does not have set mode feature report\n"); | |
1246 | goto start; | |
1247 | } | |
1248 | ||
1249 | if (!rmi_check_valid_report_id(hdev, HID_INPUT_REPORT, | |
1250 | RMI_ATTN_REPORT_ID, &input_report)) { | |
1251 | hid_dbg(hdev, "device does not have attention input report\n"); | |
1252 | goto start; | |
dd3edeb6 AD |
1253 | } |
1254 | ||
b8aed6ea | 1255 | data->input_report_size = hid_report_len(input_report); |
dd3edeb6 | 1256 | |
2f43de60 AD |
1257 | if (!rmi_check_valid_report_id(hdev, HID_OUTPUT_REPORT, |
1258 | RMI_WRITE_REPORT_ID, &output_report)) { | |
1259 | hid_dbg(hdev, | |
1260 | "device does not have rmi write output report\n"); | |
1261 | goto start; | |
dd3edeb6 AD |
1262 | } |
1263 | ||
b8aed6ea | 1264 | data->output_report_size = hid_report_len(output_report); |
9fb6bf02 | 1265 | |
2f43de60 | 1266 | data->device_flags |= RMI_DEVICE; |
9fb6bf02 BT |
1267 | alloc_size = data->output_report_size + data->input_report_size; |
1268 | ||
1269 | data->writeReport = devm_kzalloc(&hdev->dev, alloc_size, GFP_KERNEL); | |
1270 | if (!data->writeReport) { | |
1271 | ret = -ENOMEM; | |
1272 | return ret; | |
1273 | } | |
1274 | ||
1275 | data->readReport = data->writeReport + data->output_report_size; | |
1276 | ||
1277 | init_waitqueue_head(&data->wait); | |
1278 | ||
1279 | mutex_init(&data->page_mutex); | |
1280 | ||
2f43de60 | 1281 | start: |
9fb6bf02 BT |
1282 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
1283 | if (ret) { | |
1284 | hid_err(hdev, "hw start failed\n"); | |
1285 | return ret; | |
1286 | } | |
1287 | ||
2f43de60 AD |
1288 | if ((data->device_flags & RMI_DEVICE) && |
1289 | !test_bit(RMI_STARTED, &data->flags)) | |
daebdd7e AD |
1290 | /* |
1291 | * The device maybe in the bootloader if rmi_input_configured | |
1292 | * failed to find F11 in the PDT. Print an error, but don't | |
1293 | * return an error from rmi_probe so that hidraw will be | |
1294 | * accessible from userspace. That way a userspace tool | |
1295 | * can be used to reload working firmware on the touchpad. | |
1296 | */ | |
1297 | hid_err(hdev, "Device failed to be properly configured\n"); | |
9fb6bf02 | 1298 | |
9fb6bf02 BT |
1299 | return 0; |
1300 | } | |
1301 | ||
1302 | static void rmi_remove(struct hid_device *hdev) | |
1303 | { | |
1304 | struct rmi_data *hdata = hid_get_drvdata(hdev); | |
1305 | ||
1306 | clear_bit(RMI_STARTED, &hdata->flags); | |
1307 | ||
1308 | hid_hw_stop(hdev); | |
1309 | } | |
1310 | ||
1311 | static const struct hid_device_id rmi_id[] = { | |
e9287099 AD |
1312 | { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14), |
1313 | .driver_data = RMI_DEVICE_HAS_PHYS_BUTTONS }, | |
ba391e5a | 1314 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) }, |
9fb6bf02 BT |
1315 | { } |
1316 | }; | |
1317 | MODULE_DEVICE_TABLE(hid, rmi_id); | |
1318 | ||
1319 | static struct hid_driver rmi_driver = { | |
1320 | .name = "hid-rmi", | |
1321 | .id_table = rmi_id, | |
1322 | .probe = rmi_probe, | |
1323 | .remove = rmi_remove, | |
2f43de60 | 1324 | .event = rmi_event, |
9fb6bf02 BT |
1325 | .raw_event = rmi_raw_event, |
1326 | .input_mapping = rmi_input_mapping, | |
1327 | .input_configured = rmi_input_configured, | |
1328 | #ifdef CONFIG_PM | |
09256360 | 1329 | .suspend = rmi_suspend, |
9fb6bf02 BT |
1330 | .resume = rmi_post_resume, |
1331 | .reset_resume = rmi_post_reset, | |
1332 | #endif | |
1333 | }; | |
1334 | ||
1335 | module_hid_driver(rmi_driver); | |
1336 | ||
1337 | MODULE_AUTHOR("Andrew Duggan <aduggan@synaptics.com>"); | |
1338 | MODULE_DESCRIPTION("RMI HID driver"); | |
1339 | MODULE_LICENSE("GPL"); |