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2562756d MO |
1 | /* |
2 | * Copyright (c) 2016 Masaki Ota <masaki.ota@jp.alps.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the Free | |
6 | * Software Foundation; either version 2 of the License, or (at your option) | |
7 | * any later version. | |
8 | */ | |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/hid.h> | |
12 | #include <linux/input.h> | |
13 | #include <linux/input/mt.h> | |
14 | #include <linux/module.h> | |
15 | #include <asm/unaligned.h> | |
16 | #include "hid-ids.h" | |
17 | ||
18 | /* ALPS Device Product ID */ | |
19 | #define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0 | |
20 | #define HID_PRODUCT_ID_COSMO 0x1202 | |
21 | #define HID_PRODUCT_ID_U1_PTP_1 0x1207 | |
22 | #define HID_PRODUCT_ID_U1 0x1209 | |
23 | #define HID_PRODUCT_ID_U1_PTP_2 0x120A | |
24 | #define HID_PRODUCT_ID_U1_DUAL 0x120B | |
25 | #define HID_PRODUCT_ID_T4_BTNLESS 0x120C | |
26 | ||
27 | #define DEV_SINGLEPOINT 0x01 | |
28 | #define DEV_DUALPOINT 0x02 | |
29 | ||
30 | #define U1_MOUSE_REPORT_ID 0x01 /* Mouse data ReportID */ | |
31 | #define U1_ABSOLUTE_REPORT_ID 0x03 /* Absolute data ReportID */ | |
32 | #define U1_FEATURE_REPORT_ID 0x05 /* Feature ReportID */ | |
33 | #define U1_SP_ABSOLUTE_REPORT_ID 0x06 /* Feature ReportID */ | |
34 | ||
35 | #define U1_FEATURE_REPORT_LEN 0x08 /* Feature Report Length */ | |
36 | #define U1_FEATURE_REPORT_LEN_ALL 0x0A | |
37 | #define U1_CMD_REGISTER_READ 0xD1 | |
38 | #define U1_CMD_REGISTER_WRITE 0xD2 | |
39 | ||
40 | #define U1_DEVTYPE_SP_SUPPORT 0x10 /* SP Support */ | |
41 | #define U1_DISABLE_DEV 0x01 | |
42 | #define U1_TP_ABS_MODE 0x02 | |
43 | #define U1_SP_ABS_MODE 0x80 | |
44 | ||
45 | #define ADDRESS_U1_DEV_CTRL_1 0x00800040 | |
46 | #define ADDRESS_U1_DEVICE_TYP 0x00800043 | |
47 | #define ADDRESS_U1_NUM_SENS_X 0x00800047 | |
48 | #define ADDRESS_U1_NUM_SENS_Y 0x00800048 | |
49 | #define ADDRESS_U1_PITCH_SENS_X 0x00800049 | |
50 | #define ADDRESS_U1_PITCH_SENS_Y 0x0080004A | |
51 | #define ADDRESS_U1_RESO_DWN_ABS 0x0080004E | |
52 | #define ADDRESS_U1_PAD_BTN 0x00800052 | |
53 | #define ADDRESS_U1_SP_BTN 0x0080009F | |
54 | ||
73196ebe MO |
55 | #define T4_INPUT_REPORT_LEN sizeof(struct t4_input_report) |
56 | #define T4_FEATURE_REPORT_LEN T4_INPUT_REPORT_LEN | |
57 | #define T4_FEATURE_REPORT_ID 7 | |
58 | #define T4_CMD_REGISTER_READ 0x08 | |
59 | #define T4_CMD_REGISTER_WRITE 0x07 | |
60 | ||
61 | #define T4_ADDRESS_BASE 0xC2C0 | |
62 | #define PRM_SYS_CONFIG_1 (T4_ADDRESS_BASE + 0x0002) | |
63 | #define T4_PRM_FEED_CONFIG_1 (T4_ADDRESS_BASE + 0x0004) | |
64 | #define T4_PRM_FEED_CONFIG_4 (T4_ADDRESS_BASE + 0x001A) | |
65 | #define T4_PRM_ID_CONFIG_3 (T4_ADDRESS_BASE + 0x00B0) | |
66 | ||
67 | ||
68 | #define T4_FEEDCFG4_ADVANCED_ABS_ENABLE 0x01 | |
69 | #define T4_I2C_ABS 0x78 | |
70 | ||
71 | #define T4_COUNT_PER_ELECTRODE 256 | |
2562756d MO |
72 | #define MAX_TOUCHES 5 |
73 | ||
73196ebe MO |
74 | enum dev_num { |
75 | U1, | |
76 | T4, | |
77 | UNKNOWN, | |
78 | }; | |
2562756d MO |
79 | /** |
80 | * struct u1_data | |
81 | * | |
82 | * @input: pointer to the kernel input device | |
83 | * @input2: pointer to the kernel input2 device | |
84 | * @hdev: pointer to the struct hid_device | |
85 | * | |
2562756d | 86 | * @dev_type: device type |
5992262d MO |
87 | * @max_fingers: total number of fingers |
88 | * @has_sp: boolean of sp existense | |
89 | * @sp_btn_info: button information | |
2562756d MO |
90 | * @x_active_len_mm: active area length of X (mm) |
91 | * @y_active_len_mm: active area length of Y (mm) | |
92 | * @x_max: maximum x coordinate value | |
93 | * @y_max: maximum y coordinate value | |
c7083d3f MO |
94 | * @x_min: minimum x coordinate value |
95 | * @y_min: minimum y coordinate value | |
2562756d MO |
96 | * @btn_cnt: number of buttons |
97 | * @sp_btn_cnt: number of stick buttons | |
98 | */ | |
73196ebe | 99 | struct alps_dev { |
2562756d MO |
100 | struct input_dev *input; |
101 | struct input_dev *input2; | |
102 | struct hid_device *hdev; | |
103 | ||
73196ebe | 104 | enum dev_num dev_type; |
5992262d MO |
105 | u8 max_fingers; |
106 | u8 has_sp; | |
2562756d MO |
107 | u8 sp_btn_info; |
108 | u32 x_active_len_mm; | |
109 | u32 y_active_len_mm; | |
110 | u32 x_max; | |
111 | u32 y_max; | |
c7083d3f MO |
112 | u32 x_min; |
113 | u32 y_min; | |
2562756d MO |
114 | u32 btn_cnt; |
115 | u32 sp_btn_cnt; | |
116 | }; | |
117 | ||
73196ebe MO |
118 | struct t4_contact_data { |
119 | u8 palm; | |
120 | u8 x_lo; | |
121 | u8 x_hi; | |
122 | u8 y_lo; | |
123 | u8 y_hi; | |
124 | }; | |
125 | ||
126 | struct t4_input_report { | |
127 | u8 reportID; | |
128 | u8 numContacts; | |
129 | struct t4_contact_data contact[5]; | |
130 | u8 button; | |
131 | u8 track[5]; | |
132 | u8 zx[5], zy[5]; | |
133 | u8 palmTime[5]; | |
134 | u8 kilroy; | |
135 | u16 timeStamp; | |
136 | }; | |
137 | ||
138 | static u16 t4_calc_check_sum(u8 *buffer, | |
139 | unsigned long offset, unsigned long length) | |
140 | { | |
141 | u16 sum1 = 0xFF, sum2 = 0xFF; | |
142 | unsigned long i = 0; | |
143 | ||
144 | if (offset + length >= 50) | |
145 | return 0; | |
146 | ||
147 | while (length > 0) { | |
148 | u32 tlen = length > 20 ? 20 : length; | |
149 | ||
150 | length -= tlen; | |
151 | ||
152 | do { | |
153 | sum1 += buffer[offset + i]; | |
154 | sum2 += sum1; | |
155 | i++; | |
156 | } while (--tlen > 0); | |
157 | ||
158 | sum1 = (sum1 & 0xFF) + (sum1 >> 8); | |
159 | sum2 = (sum2 & 0xFF) + (sum2 >> 8); | |
160 | } | |
161 | ||
162 | sum1 = (sum1 & 0xFF) + (sum1 >> 8); | |
163 | sum2 = (sum2 & 0xFF) + (sum2 >> 8); | |
164 | ||
165 | return(sum2 << 8 | sum1); | |
166 | } | |
167 | ||
168 | static int t4_read_write_register(struct hid_device *hdev, u32 address, | |
169 | u8 *read_val, u8 write_val, bool read_flag) | |
170 | { | |
171 | int ret; | |
172 | u16 check_sum; | |
173 | u8 *input; | |
174 | u8 *readbuf; | |
175 | ||
176 | input = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); | |
177 | if (!input) | |
178 | return -ENOMEM; | |
179 | ||
180 | input[0] = T4_FEATURE_REPORT_ID; | |
181 | if (read_flag) { | |
182 | input[1] = T4_CMD_REGISTER_READ; | |
183 | input[8] = 0x00; | |
184 | } else { | |
185 | input[1] = T4_CMD_REGISTER_WRITE; | |
186 | input[8] = write_val; | |
187 | } | |
188 | put_unaligned_le32(address, input + 2); | |
189 | input[6] = 1; | |
190 | input[7] = 0; | |
191 | ||
192 | /* Calculate the checksum */ | |
193 | check_sum = t4_calc_check_sum(input, 1, 8); | |
194 | input[9] = (u8)check_sum; | |
195 | input[10] = (u8)(check_sum >> 8); | |
196 | input[11] = 0; | |
197 | ||
198 | ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, input, | |
199 | T4_FEATURE_REPORT_LEN, | |
200 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
201 | ||
202 | if (ret < 0) { | |
203 | dev_err(&hdev->dev, "failed to read command (%d)\n", ret); | |
204 | goto exit; | |
205 | } | |
206 | ||
207 | readbuf = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); | |
208 | if (read_flag) { | |
209 | if (!readbuf) { | |
210 | ret = -ENOMEM; | |
211 | goto exit; | |
212 | } | |
213 | ||
214 | ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, readbuf, | |
215 | T4_FEATURE_REPORT_LEN, | |
216 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); | |
217 | if (ret < 0) { | |
218 | dev_err(&hdev->dev, "failed read register (%d)\n", ret); | |
219 | goto exit_readbuf; | |
220 | } | |
221 | ||
222 | if (*(u32 *)&readbuf[6] != address) { | |
223 | dev_err(&hdev->dev, "read register address error (%x,%x)\n", | |
224 | *(u32 *)&readbuf[6], address); | |
225 | goto exit_readbuf; | |
226 | } | |
227 | ||
228 | if (*(u16 *)&readbuf[10] != 1) { | |
229 | dev_err(&hdev->dev, "read register size error (%x)\n", | |
230 | *(u16 *)&readbuf[10]); | |
231 | goto exit_readbuf; | |
232 | } | |
233 | ||
234 | check_sum = t4_calc_check_sum(readbuf, 6, 7); | |
235 | if (*(u16 *)&readbuf[13] != check_sum) { | |
236 | dev_err(&hdev->dev, "read register checksum error (%x,%x)\n", | |
237 | *(u16 *)&readbuf[13], check_sum); | |
238 | goto exit_readbuf; | |
239 | } | |
240 | ||
241 | *read_val = readbuf[12]; | |
242 | } | |
243 | ||
244 | ret = 0; | |
245 | ||
246 | exit_readbuf: | |
247 | kfree(readbuf); | |
248 | exit: | |
249 | kfree(input); | |
250 | return ret; | |
251 | } | |
252 | ||
2562756d MO |
253 | static int u1_read_write_register(struct hid_device *hdev, u32 address, |
254 | u8 *read_val, u8 write_val, bool read_flag) | |
255 | { | |
256 | int ret, i; | |
257 | u8 check_sum; | |
258 | u8 *input; | |
259 | u8 *readbuf; | |
260 | ||
819d64e5 | 261 | input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
2562756d MO |
262 | if (!input) |
263 | return -ENOMEM; | |
264 | ||
2562756d MO |
265 | input[0] = U1_FEATURE_REPORT_ID; |
266 | if (read_flag) { | |
267 | input[1] = U1_CMD_REGISTER_READ; | |
268 | input[6] = 0x00; | |
269 | } else { | |
270 | input[1] = U1_CMD_REGISTER_WRITE; | |
271 | input[6] = write_val; | |
272 | } | |
273 | ||
274 | put_unaligned_le32(address, input + 2); | |
275 | ||
276 | /* Calculate the checksum */ | |
277 | check_sum = U1_FEATURE_REPORT_LEN_ALL; | |
278 | for (i = 0; i < U1_FEATURE_REPORT_LEN - 1; i++) | |
279 | check_sum += input[i]; | |
280 | ||
281 | input[7] = check_sum; | |
282 | ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input, | |
819d64e5 MO |
283 | U1_FEATURE_REPORT_LEN, |
284 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
2562756d MO |
285 | |
286 | if (ret < 0) { | |
287 | dev_err(&hdev->dev, "failed to read command (%d)\n", ret); | |
288 | goto exit; | |
289 | } | |
290 | ||
291 | if (read_flag) { | |
819d64e5 MO |
292 | readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
293 | if (!readbuf) { | |
7ee2eaa3 AL |
294 | ret = -ENOMEM; |
295 | goto exit; | |
819d64e5 MO |
296 | } |
297 | ||
2562756d | 298 | ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, |
819d64e5 | 299 | U1_FEATURE_REPORT_LEN, |
63b3a7d0 | 300 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); |
2562756d MO |
301 | |
302 | if (ret < 0) { | |
303 | dev_err(&hdev->dev, "failed read register (%d)\n", ret); | |
7ee2eaa3 | 304 | kfree(readbuf); |
2562756d MO |
305 | goto exit; |
306 | } | |
307 | ||
308 | *read_val = readbuf[6]; | |
819d64e5 MO |
309 | |
310 | kfree(readbuf); | |
2562756d MO |
311 | } |
312 | ||
819d64e5 | 313 | ret = 0; |
2562756d MO |
314 | |
315 | exit: | |
316 | kfree(input); | |
2562756d MO |
317 | return ret; |
318 | } | |
319 | ||
73196ebe MO |
320 | static int t4_raw_event(struct alps_dev *hdata, u8 *data, int size) |
321 | { | |
322 | unsigned int x, y, z; | |
323 | int i; | |
324 | struct t4_input_report *p_report = (struct t4_input_report *)data; | |
325 | ||
326 | if (!data) | |
327 | return 0; | |
328 | for (i = 0; i < hdata->max_fingers; i++) { | |
329 | x = p_report->contact[i].x_hi << 8 | p_report->contact[i].x_lo; | |
330 | y = p_report->contact[i].y_hi << 8 | p_report->contact[i].y_lo; | |
331 | y = hdata->y_max - y + hdata->y_min; | |
332 | z = (p_report->contact[i].palm < 0x80 && | |
333 | p_report->contact[i].palm > 0) * 62; | |
334 | if (x == 0xffff) { | |
335 | x = 0; | |
336 | y = 0; | |
337 | z = 0; | |
338 | } | |
339 | input_mt_slot(hdata->input, i); | |
340 | ||
341 | input_mt_report_slot_state(hdata->input, | |
342 | MT_TOOL_FINGER, z != 0); | |
343 | ||
344 | if (!z) | |
345 | continue; | |
346 | ||
347 | input_report_abs(hdata->input, ABS_MT_POSITION_X, x); | |
348 | input_report_abs(hdata->input, ABS_MT_POSITION_Y, y); | |
349 | input_report_abs(hdata->input, ABS_MT_PRESSURE, z); | |
350 | } | |
351 | input_mt_sync_frame(hdata->input); | |
352 | ||
353 | input_report_key(hdata->input, BTN_LEFT, p_report->button); | |
354 | ||
355 | input_sync(hdata->input); | |
356 | return 1; | |
357 | } | |
358 | ||
359 | static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size) | |
2562756d | 360 | { |
819d64e5 MO |
361 | unsigned int x, y, z; |
362 | int i; | |
363 | short sp_x, sp_y; | |
2562756d | 364 | |
73196ebe MO |
365 | if (!data) |
366 | return 0; | |
2562756d MO |
367 | switch (data[0]) { |
368 | case U1_MOUSE_REPORT_ID: | |
369 | break; | |
370 | case U1_FEATURE_REPORT_ID: | |
371 | break; | |
372 | case U1_ABSOLUTE_REPORT_ID: | |
73196ebe | 373 | for (i = 0; i < hdata->max_fingers; i++) { |
819d64e5 MO |
374 | u8 *contact = &data[i * 5]; |
375 | ||
376 | x = get_unaligned_le16(contact + 3); | |
377 | y = get_unaligned_le16(contact + 5); | |
378 | z = contact[7] & 0x7F; | |
2562756d MO |
379 | |
380 | input_mt_slot(hdata->input, i); | |
381 | ||
819d64e5 | 382 | if (z != 0) { |
2562756d MO |
383 | input_mt_report_slot_state(hdata->input, |
384 | MT_TOOL_FINGER, 1); | |
9a54cf46 MO |
385 | input_report_abs(hdata->input, |
386 | ABS_MT_POSITION_X, x); | |
387 | input_report_abs(hdata->input, | |
388 | ABS_MT_POSITION_Y, y); | |
389 | input_report_abs(hdata->input, | |
390 | ABS_MT_PRESSURE, z); | |
2562756d MO |
391 | } else { |
392 | input_mt_report_slot_state(hdata->input, | |
393 | MT_TOOL_FINGER, 0); | |
2562756d | 394 | } |
2562756d MO |
395 | } |
396 | ||
397 | input_mt_sync_frame(hdata->input); | |
2562756d | 398 | |
819d64e5 MO |
399 | input_report_key(hdata->input, BTN_LEFT, |
400 | data[1] & 0x1); | |
401 | input_report_key(hdata->input, BTN_RIGHT, | |
402 | (data[1] & 0x2)); | |
403 | input_report_key(hdata->input, BTN_MIDDLE, | |
404 | (data[1] & 0x4)); | |
405 | ||
406 | input_sync(hdata->input); | |
2562756d MO |
407 | |
408 | return 1; | |
409 | ||
410 | case U1_SP_ABSOLUTE_REPORT_ID: | |
819d64e5 MO |
411 | sp_x = get_unaligned_le16(data+2); |
412 | sp_y = get_unaligned_le16(data+4); | |
2562756d MO |
413 | |
414 | sp_x = sp_x / 8; | |
415 | sp_y = sp_y / 8; | |
416 | ||
819d64e5 MO |
417 | input_report_rel(hdata->input2, REL_X, sp_x); |
418 | input_report_rel(hdata->input2, REL_Y, sp_y); | |
2562756d | 419 | |
819d64e5 MO |
420 | input_report_key(hdata->input2, BTN_LEFT, |
421 | data[1] & 0x1); | |
422 | input_report_key(hdata->input2, BTN_RIGHT, | |
423 | (data[1] & 0x2)); | |
424 | input_report_key(hdata->input2, BTN_MIDDLE, | |
425 | (data[1] & 0x4)); | |
2562756d | 426 | |
819d64e5 | 427 | input_sync(hdata->input2); |
2562756d MO |
428 | |
429 | return 1; | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
73196ebe MO |
435 | static int alps_raw_event(struct hid_device *hdev, |
436 | struct hid_report *report, u8 *data, int size) | |
2562756d | 437 | { |
73196ebe MO |
438 | int ret = 0; |
439 | struct alps_dev *hdata = hid_get_drvdata(hdev); | |
440 | ||
441 | switch (hdev->product) { | |
442 | case HID_PRODUCT_ID_T4_BTNLESS: | |
443 | ret = t4_raw_event(hdata, data, size); | |
444 | break; | |
445 | default: | |
446 | ret = u1_raw_event(hdata, data, size); | |
447 | break; | |
448 | } | |
449 | return ret; | |
2562756d MO |
450 | } |
451 | ||
73196ebe | 452 | static int __maybe_unused alps_post_reset(struct hid_device *hdev) |
2562756d | 453 | { |
73196ebe MO |
454 | int ret = -1; |
455 | struct alps_dev *data = hid_get_drvdata(hdev); | |
456 | ||
457 | switch (data->dev_type) { | |
458 | case T4: | |
459 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1, | |
460 | NULL, T4_I2C_ABS, false); | |
461 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, | |
462 | NULL, T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false); | |
463 | break; | |
464 | case U1: | |
465 | ret = u1_read_write_register(hdev, | |
466 | ADDRESS_U1_DEV_CTRL_1, NULL, | |
467 | U1_TP_ABS_MODE | U1_SP_ABS_MODE, false); | |
468 | break; | |
469 | default: | |
470 | break; | |
471 | } | |
472 | return ret; | |
473 | } | |
474 | ||
475 | static int __maybe_unused alps_post_resume(struct hid_device *hdev) | |
476 | { | |
477 | return alps_post_reset(hdev); | |
2562756d | 478 | } |
2562756d | 479 | |
73196ebe | 480 | static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data) |
2562756d | 481 | { |
2562756d | 482 | int ret; |
5992262d MO |
483 | u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y; |
484 | u8 pitch_x, pitch_y, resolution; | |
2562756d MO |
485 | |
486 | /* Device initialization */ | |
487 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, | |
5992262d | 488 | &dev_ctrl, 0, true); |
2562756d MO |
489 | if (ret < 0) { |
490 | dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret); | |
491 | goto exit; | |
492 | } | |
493 | ||
5992262d MO |
494 | dev_ctrl &= ~U1_DISABLE_DEV; |
495 | dev_ctrl |= U1_TP_ABS_MODE; | |
2562756d | 496 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
5992262d | 497 | NULL, dev_ctrl, false); |
2562756d MO |
498 | if (ret < 0) { |
499 | dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret); | |
500 | goto exit; | |
501 | } | |
502 | ||
503 | ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X, | |
5992262d | 504 | &sen_line_num_x, 0, true); |
2562756d MO |
505 | if (ret < 0) { |
506 | dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret); | |
507 | goto exit; | |
508 | } | |
509 | ||
510 | ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y, | |
5992262d | 511 | &sen_line_num_y, 0, true); |
2562756d MO |
512 | if (ret < 0) { |
513 | dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret); | |
514 | goto exit; | |
515 | } | |
516 | ||
517 | ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X, | |
5992262d | 518 | &pitch_x, 0, true); |
2562756d MO |
519 | if (ret < 0) { |
520 | dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret); | |
521 | goto exit; | |
522 | } | |
523 | ||
524 | ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y, | |
5992262d | 525 | &pitch_y, 0, true); |
2562756d MO |
526 | if (ret < 0) { |
527 | dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret); | |
528 | goto exit; | |
529 | } | |
530 | ||
531 | ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS, | |
5992262d | 532 | &resolution, 0, true); |
2562756d MO |
533 | if (ret < 0) { |
534 | dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret); | |
535 | goto exit; | |
536 | } | |
5d8c720d | 537 | pri_data->x_active_len_mm = |
5992262d | 538 | (pitch_x * (sen_line_num_x - 1)) / 10; |
5d8c720d | 539 | pri_data->y_active_len_mm = |
5992262d | 540 | (pitch_y * (sen_line_num_y - 1)) / 10; |
5d8c720d MO |
541 | |
542 | pri_data->x_max = | |
5992262d | 543 | (resolution << 2) * (sen_line_num_x - 1); |
c7083d3f | 544 | pri_data->x_min = 1; |
5d8c720d | 545 | pri_data->y_max = |
5992262d | 546 | (resolution << 2) * (sen_line_num_y - 1); |
c7083d3f | 547 | pri_data->y_min = 1; |
2562756d MO |
548 | |
549 | ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN, | |
5992262d | 550 | &tmp, 0, true); |
2562756d MO |
551 | if (ret < 0) { |
552 | dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret); | |
553 | goto exit; | |
554 | } | |
5992262d MO |
555 | if ((tmp & 0x0F) == (tmp & 0xF0) >> 4) { |
556 | pri_data->btn_cnt = (tmp & 0x0F); | |
c7083d3f MO |
557 | } else { |
558 | /* Button pad */ | |
559 | pri_data->btn_cnt = 1; | |
560 | } | |
2562756d | 561 | |
5d8c720d | 562 | pri_data->has_sp = 0; |
2562756d MO |
563 | /* Check StickPointer device */ |
564 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP, | |
5992262d | 565 | &tmp, 0, true); |
2562756d MO |
566 | if (ret < 0) { |
567 | dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret); | |
568 | goto exit; | |
569 | } | |
5992262d MO |
570 | if (tmp & U1_DEVTYPE_SP_SUPPORT) { |
571 | dev_ctrl |= U1_SP_ABS_MODE; | |
5d8c720d | 572 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
5992262d | 573 | NULL, dev_ctrl, false); |
5d8c720d MO |
574 | if (ret < 0) { |
575 | dev_err(&hdev->dev, "failed SP mode (%d)\n", ret); | |
576 | goto exit; | |
577 | } | |
578 | ||
579 | ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN, | |
580 | &pri_data->sp_btn_info, 0, true); | |
581 | if (ret < 0) { | |
582 | dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret); | |
583 | goto exit; | |
584 | } | |
585 | pri_data->has_sp = 1; | |
586 | } | |
c7083d3f | 587 | pri_data->max_fingers = 5; |
5d8c720d MO |
588 | exit: |
589 | return ret; | |
590 | } | |
591 | ||
73196ebe MO |
592 | static int T4_init(struct hid_device *hdev, struct alps_dev *pri_data) |
593 | { | |
594 | int ret; | |
595 | u8 tmp, sen_line_num_x, sen_line_num_y; | |
596 | ||
597 | ret = t4_read_write_register(hdev, T4_PRM_ID_CONFIG_3, &tmp, 0, true); | |
598 | if (ret < 0) { | |
599 | dev_err(&hdev->dev, "failed T4_PRM_ID_CONFIG_3 (%d)\n", ret); | |
600 | goto exit; | |
601 | } | |
602 | sen_line_num_x = 16 + ((tmp & 0x0F) | (tmp & 0x08 ? 0xF0 : 0)); | |
603 | sen_line_num_y = 12 + (((tmp & 0xF0) >> 4) | (tmp & 0x80 ? 0xF0 : 0)); | |
604 | ||
605 | pri_data->x_max = sen_line_num_x * T4_COUNT_PER_ELECTRODE; | |
606 | pri_data->x_min = T4_COUNT_PER_ELECTRODE; | |
607 | pri_data->y_max = sen_line_num_y * T4_COUNT_PER_ELECTRODE; | |
608 | pri_data->y_min = T4_COUNT_PER_ELECTRODE; | |
609 | pri_data->x_active_len_mm = pri_data->y_active_len_mm = 0; | |
610 | pri_data->btn_cnt = 1; | |
611 | ||
612 | ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, &tmp, 0, true); | |
613 | if (ret < 0) { | |
614 | dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret); | |
615 | goto exit; | |
616 | } | |
617 | tmp |= 0x02; | |
618 | ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, NULL, tmp, false); | |
619 | if (ret < 0) { | |
620 | dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret); | |
621 | goto exit; | |
622 | } | |
623 | ||
624 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1, | |
625 | NULL, T4_I2C_ABS, false); | |
626 | if (ret < 0) { | |
627 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", ret); | |
628 | goto exit; | |
629 | } | |
630 | ||
631 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, NULL, | |
632 | T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false); | |
633 | if (ret < 0) { | |
634 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", ret); | |
635 | goto exit; | |
636 | } | |
637 | pri_data->max_fingers = 5; | |
638 | pri_data->has_sp = 0; | |
639 | exit: | |
640 | return ret; | |
641 | } | |
642 | ||
1f938a20 BT |
643 | static int alps_sp_open(struct input_dev *dev) |
644 | { | |
645 | struct hid_device *hid = input_get_drvdata(dev); | |
646 | ||
647 | return hid_hw_open(hid); | |
648 | } | |
649 | ||
650 | static void alps_sp_close(struct input_dev *dev) | |
651 | { | |
652 | struct hid_device *hid = input_get_drvdata(dev); | |
653 | ||
654 | hid_hw_close(hid); | |
655 | } | |
656 | ||
5d8c720d MO |
657 | static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) |
658 | { | |
73196ebe | 659 | struct alps_dev *data = hid_get_drvdata(hdev); |
5d8c720d MO |
660 | struct input_dev *input = hi->input, *input2; |
661 | int ret; | |
662 | int res_x, res_y, i; | |
663 | ||
664 | data->input = input; | |
665 | ||
666 | hid_dbg(hdev, "Opening low level driver\n"); | |
667 | ret = hid_hw_open(hdev); | |
668 | if (ret) | |
669 | return ret; | |
670 | ||
671 | /* Allow incoming hid reports */ | |
672 | hid_device_io_start(hdev); | |
73196ebe MO |
673 | switch (data->dev_type) { |
674 | case T4: | |
675 | ret = T4_init(hdev, data); | |
676 | break; | |
677 | case U1: | |
678 | ret = u1_init(hdev, data); | |
679 | break; | |
680 | default: | |
681 | break; | |
682 | } | |
5d8c720d MO |
683 | |
684 | if (ret) | |
685 | goto exit; | |
2562756d MO |
686 | |
687 | __set_bit(EV_ABS, input->evbit); | |
c7083d3f MO |
688 | input_set_abs_params(input, ABS_MT_POSITION_X, |
689 | data->x_min, data->x_max, 0, 0); | |
690 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
691 | data->y_min, data->y_max, 0, 0); | |
2562756d | 692 | |
ce6abcf8 MO |
693 | if (data->x_active_len_mm && data->y_active_len_mm) { |
694 | res_x = (data->x_max - 1) / data->x_active_len_mm; | |
695 | res_y = (data->y_max - 1) / data->y_active_len_mm; | |
2562756d MO |
696 | |
697 | input_abs_set_res(input, ABS_MT_POSITION_X, res_x); | |
698 | input_abs_set_res(input, ABS_MT_POSITION_Y, res_y); | |
699 | } | |
700 | ||
701 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 64, 0, 0); | |
702 | ||
c7083d3f | 703 | input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); |
2562756d MO |
704 | |
705 | __set_bit(EV_KEY, input->evbit); | |
c7083d3f MO |
706 | |
707 | if (data->btn_cnt == 1) | |
2562756d | 708 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
2562756d | 709 | |
ce6abcf8 | 710 | for (i = 0; i < data->btn_cnt; i++) |
2562756d MO |
711 | __set_bit(BTN_LEFT + i, input->keybit); |
712 | ||
2562756d | 713 | /* Stick device initialization */ |
5d8c720d | 714 | if (data->has_sp) { |
2562756d MO |
715 | input2 = input_allocate_device(); |
716 | if (!input2) { | |
c7083d3f | 717 | input_free_device(input2); |
2562756d MO |
718 | goto exit; |
719 | } | |
720 | ||
819d64e5 | 721 | data->input2 = input2; |
2562756d MO |
722 | input2->phys = input->phys; |
723 | input2->name = "DualPoint Stick"; | |
724 | input2->id.bustype = BUS_I2C; | |
725 | input2->id.vendor = input->id.vendor; | |
726 | input2->id.product = input->id.product; | |
727 | input2->id.version = input->id.version; | |
728 | input2->dev.parent = input->dev.parent; | |
729 | ||
1f938a20 BT |
730 | input_set_drvdata(input2, hdev); |
731 | input2->open = alps_sp_open; | |
732 | input2->close = alps_sp_close; | |
733 | ||
2562756d | 734 | __set_bit(EV_KEY, input2->evbit); |
ce6abcf8 MO |
735 | data->sp_btn_cnt = (data->sp_btn_info & 0x0F); |
736 | for (i = 0; i < data->sp_btn_cnt; i++) | |
2562756d MO |
737 | __set_bit(BTN_LEFT + i, input2->keybit); |
738 | ||
739 | __set_bit(EV_REL, input2->evbit); | |
740 | __set_bit(REL_X, input2->relbit); | |
741 | __set_bit(REL_Y, input2->relbit); | |
742 | __set_bit(INPUT_PROP_POINTER, input2->propbit); | |
743 | __set_bit(INPUT_PROP_POINTING_STICK, input2->propbit); | |
744 | ||
c7083d3f | 745 | if (input_register_device(data->input2)) { |
2562756d MO |
746 | input_free_device(input2); |
747 | goto exit; | |
748 | } | |
749 | } | |
750 | ||
751 | exit: | |
752 | hid_device_io_stop(hdev); | |
753 | hid_hw_close(hdev); | |
754 | return ret; | |
755 | } | |
756 | ||
757 | static int alps_input_mapping(struct hid_device *hdev, | |
758 | struct hid_input *hi, struct hid_field *field, | |
759 | struct hid_usage *usage, unsigned long **bit, int *max) | |
760 | { | |
761 | return -1; | |
762 | } | |
763 | ||
764 | static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
765 | { | |
73196ebe | 766 | struct alps_dev *data = NULL; |
2562756d | 767 | int ret; |
73196ebe | 768 | data = devm_kzalloc(&hdev->dev, sizeof(struct alps_dev), GFP_KERNEL); |
2562756d MO |
769 | if (!data) |
770 | return -ENOMEM; | |
771 | ||
772 | data->hdev = hdev; | |
773 | hid_set_drvdata(hdev, data); | |
774 | ||
775 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
776 | ||
777 | ret = hid_parse(hdev); | |
778 | if (ret) { | |
779 | hid_err(hdev, "parse failed\n"); | |
780 | return ret; | |
781 | } | |
782 | ||
73196ebe MO |
783 | switch (hdev->product) { |
784 | case HID_DEVICE_ID_ALPS_T4_BTNLESS: | |
785 | data->dev_type = T4; | |
786 | break; | |
787 | case HID_DEVICE_ID_ALPS_U1_DUAL: | |
287b8e11 | 788 | case HID_DEVICE_ID_ALPS_U1: |
73196ebe MO |
789 | data->dev_type = U1; |
790 | break; | |
791 | default: | |
792 | data->dev_type = UNKNOWN; | |
793 | } | |
794 | ||
2562756d MO |
795 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
796 | if (ret) { | |
797 | hid_err(hdev, "hw start failed\n"); | |
798 | return ret; | |
799 | } | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
804 | static void alps_remove(struct hid_device *hdev) | |
805 | { | |
806 | hid_hw_stop(hdev); | |
2562756d MO |
807 | } |
808 | ||
809 | static const struct hid_device_id alps_id[] = { | |
810 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, | |
819d64e5 | 811 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) }, |
287b8e11 MO |
812 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, |
813 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1) }, | |
73196ebe MO |
814 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, |
815 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) }, | |
2562756d MO |
816 | { } |
817 | }; | |
818 | MODULE_DEVICE_TABLE(hid, alps_id); | |
819 | ||
820 | static struct hid_driver alps_driver = { | |
821 | .name = "hid-alps", | |
822 | .id_table = alps_id, | |
823 | .probe = alps_probe, | |
824 | .remove = alps_remove, | |
825 | .raw_event = alps_raw_event, | |
826 | .input_mapping = alps_input_mapping, | |
827 | .input_configured = alps_input_configured, | |
828 | #ifdef CONFIG_PM | |
829 | .resume = alps_post_resume, | |
830 | .reset_resume = alps_post_reset, | |
831 | #endif | |
832 | }; | |
833 | ||
834 | module_hid_driver(alps_driver); | |
835 | ||
836 | MODULE_AUTHOR("Masaki Ota <masaki.ota@jp.alps.com>"); | |
837 | MODULE_DESCRIPTION("ALPS HID driver"); | |
838 | MODULE_LICENSE("GPL"); |