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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2562756d MO |
2 | /* |
3 | * Copyright (c) 2016 Masaki Ota <masaki.ota@jp.alps.com> | |
2562756d MO |
4 | */ |
5 | ||
6 | #include <linux/kernel.h> | |
7 | #include <linux/hid.h> | |
8 | #include <linux/input.h> | |
9 | #include <linux/input/mt.h> | |
10 | #include <linux/module.h> | |
11 | #include <asm/unaligned.h> | |
12 | #include "hid-ids.h" | |
13 | ||
14 | /* ALPS Device Product ID */ | |
15 | #define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0 | |
16 | #define HID_PRODUCT_ID_COSMO 0x1202 | |
17 | #define HID_PRODUCT_ID_U1_PTP_1 0x1207 | |
18 | #define HID_PRODUCT_ID_U1 0x1209 | |
19 | #define HID_PRODUCT_ID_U1_PTP_2 0x120A | |
20 | #define HID_PRODUCT_ID_U1_DUAL 0x120B | |
21 | #define HID_PRODUCT_ID_T4_BTNLESS 0x120C | |
22 | ||
23 | #define DEV_SINGLEPOINT 0x01 | |
24 | #define DEV_DUALPOINT 0x02 | |
25 | ||
26 | #define U1_MOUSE_REPORT_ID 0x01 /* Mouse data ReportID */ | |
27 | #define U1_ABSOLUTE_REPORT_ID 0x03 /* Absolute data ReportID */ | |
aa3c439c | 28 | #define U1_ABSOLUTE_REPORT_ID_SECD 0x02 /* FW-PTP Absolute data ReportID */ |
2562756d MO |
29 | #define U1_FEATURE_REPORT_ID 0x05 /* Feature ReportID */ |
30 | #define U1_SP_ABSOLUTE_REPORT_ID 0x06 /* Feature ReportID */ | |
31 | ||
32 | #define U1_FEATURE_REPORT_LEN 0x08 /* Feature Report Length */ | |
33 | #define U1_FEATURE_REPORT_LEN_ALL 0x0A | |
34 | #define U1_CMD_REGISTER_READ 0xD1 | |
35 | #define U1_CMD_REGISTER_WRITE 0xD2 | |
36 | ||
37 | #define U1_DEVTYPE_SP_SUPPORT 0x10 /* SP Support */ | |
38 | #define U1_DISABLE_DEV 0x01 | |
39 | #define U1_TP_ABS_MODE 0x02 | |
40 | #define U1_SP_ABS_MODE 0x80 | |
41 | ||
42 | #define ADDRESS_U1_DEV_CTRL_1 0x00800040 | |
43 | #define ADDRESS_U1_DEVICE_TYP 0x00800043 | |
44 | #define ADDRESS_U1_NUM_SENS_X 0x00800047 | |
45 | #define ADDRESS_U1_NUM_SENS_Y 0x00800048 | |
46 | #define ADDRESS_U1_PITCH_SENS_X 0x00800049 | |
47 | #define ADDRESS_U1_PITCH_SENS_Y 0x0080004A | |
48 | #define ADDRESS_U1_RESO_DWN_ABS 0x0080004E | |
49 | #define ADDRESS_U1_PAD_BTN 0x00800052 | |
50 | #define ADDRESS_U1_SP_BTN 0x0080009F | |
51 | ||
73196ebe MO |
52 | #define T4_INPUT_REPORT_LEN sizeof(struct t4_input_report) |
53 | #define T4_FEATURE_REPORT_LEN T4_INPUT_REPORT_LEN | |
54 | #define T4_FEATURE_REPORT_ID 7 | |
55 | #define T4_CMD_REGISTER_READ 0x08 | |
56 | #define T4_CMD_REGISTER_WRITE 0x07 | |
57 | ||
58 | #define T4_ADDRESS_BASE 0xC2C0 | |
59 | #define PRM_SYS_CONFIG_1 (T4_ADDRESS_BASE + 0x0002) | |
60 | #define T4_PRM_FEED_CONFIG_1 (T4_ADDRESS_BASE + 0x0004) | |
61 | #define T4_PRM_FEED_CONFIG_4 (T4_ADDRESS_BASE + 0x001A) | |
62 | #define T4_PRM_ID_CONFIG_3 (T4_ADDRESS_BASE + 0x00B0) | |
63 | ||
64 | ||
65 | #define T4_FEEDCFG4_ADVANCED_ABS_ENABLE 0x01 | |
66 | #define T4_I2C_ABS 0x78 | |
67 | ||
68 | #define T4_COUNT_PER_ELECTRODE 256 | |
2562756d MO |
69 | #define MAX_TOUCHES 5 |
70 | ||
73196ebe MO |
71 | enum dev_num { |
72 | U1, | |
73 | T4, | |
74 | UNKNOWN, | |
75 | }; | |
2562756d | 76 | /** |
8802d154 | 77 | * struct alps_dev |
2562756d MO |
78 | * |
79 | * @input: pointer to the kernel input device | |
80 | * @input2: pointer to the kernel input2 device | |
81 | * @hdev: pointer to the struct hid_device | |
82 | * | |
2562756d | 83 | * @dev_type: device type |
5992262d MO |
84 | * @max_fingers: total number of fingers |
85 | * @has_sp: boolean of sp existense | |
86 | * @sp_btn_info: button information | |
2562756d MO |
87 | * @x_active_len_mm: active area length of X (mm) |
88 | * @y_active_len_mm: active area length of Y (mm) | |
89 | * @x_max: maximum x coordinate value | |
90 | * @y_max: maximum y coordinate value | |
c7083d3f MO |
91 | * @x_min: minimum x coordinate value |
92 | * @y_min: minimum y coordinate value | |
2562756d MO |
93 | * @btn_cnt: number of buttons |
94 | * @sp_btn_cnt: number of stick buttons | |
95 | */ | |
73196ebe | 96 | struct alps_dev { |
2562756d MO |
97 | struct input_dev *input; |
98 | struct input_dev *input2; | |
99 | struct hid_device *hdev; | |
100 | ||
73196ebe | 101 | enum dev_num dev_type; |
5992262d MO |
102 | u8 max_fingers; |
103 | u8 has_sp; | |
2562756d MO |
104 | u8 sp_btn_info; |
105 | u32 x_active_len_mm; | |
106 | u32 y_active_len_mm; | |
107 | u32 x_max; | |
108 | u32 y_max; | |
c7083d3f MO |
109 | u32 x_min; |
110 | u32 y_min; | |
2562756d MO |
111 | u32 btn_cnt; |
112 | u32 sp_btn_cnt; | |
113 | }; | |
114 | ||
73196ebe MO |
115 | struct t4_contact_data { |
116 | u8 palm; | |
117 | u8 x_lo; | |
118 | u8 x_hi; | |
119 | u8 y_lo; | |
120 | u8 y_hi; | |
121 | }; | |
122 | ||
123 | struct t4_input_report { | |
124 | u8 reportID; | |
125 | u8 numContacts; | |
126 | struct t4_contact_data contact[5]; | |
127 | u8 button; | |
128 | u8 track[5]; | |
129 | u8 zx[5], zy[5]; | |
130 | u8 palmTime[5]; | |
131 | u8 kilroy; | |
132 | u16 timeStamp; | |
133 | }; | |
134 | ||
135 | static u16 t4_calc_check_sum(u8 *buffer, | |
136 | unsigned long offset, unsigned long length) | |
137 | { | |
138 | u16 sum1 = 0xFF, sum2 = 0xFF; | |
139 | unsigned long i = 0; | |
140 | ||
141 | if (offset + length >= 50) | |
142 | return 0; | |
143 | ||
144 | while (length > 0) { | |
145 | u32 tlen = length > 20 ? 20 : length; | |
146 | ||
147 | length -= tlen; | |
148 | ||
149 | do { | |
150 | sum1 += buffer[offset + i]; | |
151 | sum2 += sum1; | |
152 | i++; | |
153 | } while (--tlen > 0); | |
154 | ||
155 | sum1 = (sum1 & 0xFF) + (sum1 >> 8); | |
156 | sum2 = (sum2 & 0xFF) + (sum2 >> 8); | |
157 | } | |
158 | ||
159 | sum1 = (sum1 & 0xFF) + (sum1 >> 8); | |
160 | sum2 = (sum2 & 0xFF) + (sum2 >> 8); | |
161 | ||
162 | return(sum2 << 8 | sum1); | |
163 | } | |
164 | ||
165 | static int t4_read_write_register(struct hid_device *hdev, u32 address, | |
166 | u8 *read_val, u8 write_val, bool read_flag) | |
167 | { | |
168 | int ret; | |
169 | u16 check_sum; | |
170 | u8 *input; | |
edb6cb3d | 171 | u8 *readbuf = NULL; |
73196ebe MO |
172 | |
173 | input = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); | |
174 | if (!input) | |
175 | return -ENOMEM; | |
176 | ||
177 | input[0] = T4_FEATURE_REPORT_ID; | |
178 | if (read_flag) { | |
179 | input[1] = T4_CMD_REGISTER_READ; | |
180 | input[8] = 0x00; | |
181 | } else { | |
182 | input[1] = T4_CMD_REGISTER_WRITE; | |
183 | input[8] = write_val; | |
184 | } | |
185 | put_unaligned_le32(address, input + 2); | |
186 | input[6] = 1; | |
187 | input[7] = 0; | |
188 | ||
189 | /* Calculate the checksum */ | |
190 | check_sum = t4_calc_check_sum(input, 1, 8); | |
191 | input[9] = (u8)check_sum; | |
192 | input[10] = (u8)(check_sum >> 8); | |
193 | input[11] = 0; | |
194 | ||
195 | ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, input, | |
196 | T4_FEATURE_REPORT_LEN, | |
197 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
198 | ||
199 | if (ret < 0) { | |
200 | dev_err(&hdev->dev, "failed to read command (%d)\n", ret); | |
201 | goto exit; | |
202 | } | |
203 | ||
73196ebe | 204 | if (read_flag) { |
edb6cb3d | 205 | readbuf = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); |
73196ebe MO |
206 | if (!readbuf) { |
207 | ret = -ENOMEM; | |
208 | goto exit; | |
209 | } | |
210 | ||
211 | ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, readbuf, | |
212 | T4_FEATURE_REPORT_LEN, | |
213 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); | |
214 | if (ret < 0) { | |
215 | dev_err(&hdev->dev, "failed read register (%d)\n", ret); | |
216 | goto exit_readbuf; | |
217 | } | |
218 | ||
605f0772 CJ |
219 | ret = -EINVAL; |
220 | ||
73196ebe MO |
221 | if (*(u32 *)&readbuf[6] != address) { |
222 | dev_err(&hdev->dev, "read register address error (%x,%x)\n", | |
a317e559 | 223 | *(u32 *)&readbuf[6], address); |
73196ebe MO |
224 | goto exit_readbuf; |
225 | } | |
226 | ||
227 | if (*(u16 *)&readbuf[10] != 1) { | |
228 | dev_err(&hdev->dev, "read register size error (%x)\n", | |
a317e559 | 229 | *(u16 *)&readbuf[10]); |
73196ebe MO |
230 | goto exit_readbuf; |
231 | } | |
232 | ||
233 | check_sum = t4_calc_check_sum(readbuf, 6, 7); | |
234 | if (*(u16 *)&readbuf[13] != check_sum) { | |
235 | dev_err(&hdev->dev, "read register checksum error (%x,%x)\n", | |
a317e559 | 236 | *(u16 *)&readbuf[13], check_sum); |
73196ebe MO |
237 | goto exit_readbuf; |
238 | } | |
239 | ||
240 | *read_val = readbuf[12]; | |
241 | } | |
242 | ||
243 | ret = 0; | |
244 | ||
245 | exit_readbuf: | |
246 | kfree(readbuf); | |
247 | exit: | |
248 | kfree(input); | |
249 | return ret; | |
250 | } | |
251 | ||
2562756d MO |
252 | static int u1_read_write_register(struct hid_device *hdev, u32 address, |
253 | u8 *read_val, u8 write_val, bool read_flag) | |
254 | { | |
255 | int ret, i; | |
256 | u8 check_sum; | |
257 | u8 *input; | |
258 | u8 *readbuf; | |
259 | ||
819d64e5 | 260 | input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
2562756d MO |
261 | if (!input) |
262 | return -ENOMEM; | |
263 | ||
2562756d MO |
264 | input[0] = U1_FEATURE_REPORT_ID; |
265 | if (read_flag) { | |
266 | input[1] = U1_CMD_REGISTER_READ; | |
267 | input[6] = 0x00; | |
268 | } else { | |
269 | input[1] = U1_CMD_REGISTER_WRITE; | |
270 | input[6] = write_val; | |
271 | } | |
272 | ||
273 | put_unaligned_le32(address, input + 2); | |
274 | ||
275 | /* Calculate the checksum */ | |
276 | check_sum = U1_FEATURE_REPORT_LEN_ALL; | |
277 | for (i = 0; i < U1_FEATURE_REPORT_LEN - 1; i++) | |
278 | check_sum += input[i]; | |
279 | ||
280 | input[7] = check_sum; | |
281 | ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input, | |
819d64e5 MO |
282 | U1_FEATURE_REPORT_LEN, |
283 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); | |
2562756d MO |
284 | |
285 | if (ret < 0) { | |
286 | dev_err(&hdev->dev, "failed to read command (%d)\n", ret); | |
287 | goto exit; | |
288 | } | |
289 | ||
290 | if (read_flag) { | |
819d64e5 MO |
291 | readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
292 | if (!readbuf) { | |
7ee2eaa3 AL |
293 | ret = -ENOMEM; |
294 | goto exit; | |
819d64e5 MO |
295 | } |
296 | ||
2562756d | 297 | ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, |
819d64e5 | 298 | U1_FEATURE_REPORT_LEN, |
63b3a7d0 | 299 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); |
2562756d MO |
300 | |
301 | if (ret < 0) { | |
302 | dev_err(&hdev->dev, "failed read register (%d)\n", ret); | |
7ee2eaa3 | 303 | kfree(readbuf); |
2562756d MO |
304 | goto exit; |
305 | } | |
306 | ||
307 | *read_val = readbuf[6]; | |
819d64e5 MO |
308 | |
309 | kfree(readbuf); | |
2562756d MO |
310 | } |
311 | ||
819d64e5 | 312 | ret = 0; |
2562756d MO |
313 | |
314 | exit: | |
315 | kfree(input); | |
2562756d MO |
316 | return ret; |
317 | } | |
318 | ||
73196ebe MO |
319 | static int t4_raw_event(struct alps_dev *hdata, u8 *data, int size) |
320 | { | |
321 | unsigned int x, y, z; | |
322 | int i; | |
323 | struct t4_input_report *p_report = (struct t4_input_report *)data; | |
324 | ||
325 | if (!data) | |
326 | return 0; | |
327 | for (i = 0; i < hdata->max_fingers; i++) { | |
328 | x = p_report->contact[i].x_hi << 8 | p_report->contact[i].x_lo; | |
329 | y = p_report->contact[i].y_hi << 8 | p_report->contact[i].y_lo; | |
330 | y = hdata->y_max - y + hdata->y_min; | |
331 | z = (p_report->contact[i].palm < 0x80 && | |
332 | p_report->contact[i].palm > 0) * 62; | |
333 | if (x == 0xffff) { | |
334 | x = 0; | |
335 | y = 0; | |
336 | z = 0; | |
337 | } | |
338 | input_mt_slot(hdata->input, i); | |
339 | ||
340 | input_mt_report_slot_state(hdata->input, | |
341 | MT_TOOL_FINGER, z != 0); | |
342 | ||
343 | if (!z) | |
344 | continue; | |
345 | ||
346 | input_report_abs(hdata->input, ABS_MT_POSITION_X, x); | |
347 | input_report_abs(hdata->input, ABS_MT_POSITION_Y, y); | |
348 | input_report_abs(hdata->input, ABS_MT_PRESSURE, z); | |
349 | } | |
350 | input_mt_sync_frame(hdata->input); | |
351 | ||
352 | input_report_key(hdata->input, BTN_LEFT, p_report->button); | |
353 | ||
354 | input_sync(hdata->input); | |
355 | return 1; | |
356 | } | |
357 | ||
358 | static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size) | |
2562756d | 359 | { |
819d64e5 MO |
360 | unsigned int x, y, z; |
361 | int i; | |
362 | short sp_x, sp_y; | |
2562756d | 363 | |
73196ebe MO |
364 | if (!data) |
365 | return 0; | |
2562756d MO |
366 | switch (data[0]) { |
367 | case U1_MOUSE_REPORT_ID: | |
368 | break; | |
369 | case U1_FEATURE_REPORT_ID: | |
370 | break; | |
371 | case U1_ABSOLUTE_REPORT_ID: | |
aa3c439c | 372 | case U1_ABSOLUTE_REPORT_ID_SECD: |
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 | 391 | } else { |
5fc70e35 | 392 | input_mt_report_slot_inactive(hdata->input); |
2562756d | 393 | } |
2562756d MO |
394 | } |
395 | ||
396 | input_mt_sync_frame(hdata->input); | |
2562756d | 397 | |
819d64e5 MO |
398 | input_report_key(hdata->input, BTN_LEFT, |
399 | data[1] & 0x1); | |
400 | input_report_key(hdata->input, BTN_RIGHT, | |
401 | (data[1] & 0x2)); | |
402 | input_report_key(hdata->input, BTN_MIDDLE, | |
403 | (data[1] & 0x4)); | |
404 | ||
405 | input_sync(hdata->input); | |
2562756d MO |
406 | |
407 | return 1; | |
408 | ||
409 | case U1_SP_ABSOLUTE_REPORT_ID: | |
819d64e5 MO |
410 | sp_x = get_unaligned_le16(data+2); |
411 | sp_y = get_unaligned_le16(data+4); | |
2562756d MO |
412 | |
413 | sp_x = sp_x / 8; | |
414 | sp_y = sp_y / 8; | |
415 | ||
819d64e5 MO |
416 | input_report_rel(hdata->input2, REL_X, sp_x); |
417 | input_report_rel(hdata->input2, REL_Y, sp_y); | |
2562756d | 418 | |
819d64e5 MO |
419 | input_report_key(hdata->input2, BTN_LEFT, |
420 | data[1] & 0x1); | |
421 | input_report_key(hdata->input2, BTN_RIGHT, | |
422 | (data[1] & 0x2)); | |
423 | input_report_key(hdata->input2, BTN_MIDDLE, | |
424 | (data[1] & 0x4)); | |
2562756d | 425 | |
819d64e5 | 426 | input_sync(hdata->input2); |
2562756d MO |
427 | |
428 | return 1; | |
429 | } | |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
73196ebe MO |
434 | static int alps_raw_event(struct hid_device *hdev, |
435 | struct hid_report *report, u8 *data, int size) | |
2562756d | 436 | { |
73196ebe MO |
437 | int ret = 0; |
438 | struct alps_dev *hdata = hid_get_drvdata(hdev); | |
439 | ||
440 | switch (hdev->product) { | |
441 | case HID_PRODUCT_ID_T4_BTNLESS: | |
442 | ret = t4_raw_event(hdata, data, size); | |
443 | break; | |
444 | default: | |
445 | ret = u1_raw_event(hdata, data, size); | |
446 | break; | |
447 | } | |
448 | return ret; | |
2562756d MO |
449 | } |
450 | ||
73196ebe | 451 | static int __maybe_unused alps_post_reset(struct hid_device *hdev) |
2562756d | 452 | { |
73196ebe MO |
453 | int ret = -1; |
454 | struct alps_dev *data = hid_get_drvdata(hdev); | |
455 | ||
456 | switch (data->dev_type) { | |
457 | case T4: | |
458 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1, | |
459 | NULL, T4_I2C_ABS, false); | |
69934012 CJ |
460 | if (ret < 0) { |
461 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", | |
462 | ret); | |
463 | goto exit; | |
464 | } | |
465 | ||
73196ebe MO |
466 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, |
467 | NULL, T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false); | |
69934012 CJ |
468 | if (ret < 0) { |
469 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", | |
470 | ret); | |
471 | goto exit; | |
472 | } | |
73196ebe MO |
473 | break; |
474 | case U1: | |
475 | ret = u1_read_write_register(hdev, | |
476 | ADDRESS_U1_DEV_CTRL_1, NULL, | |
477 | U1_TP_ABS_MODE | U1_SP_ABS_MODE, false); | |
69934012 CJ |
478 | if (ret < 0) { |
479 | dev_err(&hdev->dev, "failed to change TP mode (%d)\n", | |
480 | ret); | |
481 | goto exit; | |
482 | } | |
73196ebe MO |
483 | break; |
484 | default: | |
485 | break; | |
486 | } | |
69934012 CJ |
487 | |
488 | exit: | |
73196ebe MO |
489 | return ret; |
490 | } | |
491 | ||
492 | static int __maybe_unused alps_post_resume(struct hid_device *hdev) | |
493 | { | |
494 | return alps_post_reset(hdev); | |
2562756d | 495 | } |
2562756d | 496 | |
73196ebe | 497 | static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data) |
2562756d | 498 | { |
2562756d | 499 | int ret; |
5992262d MO |
500 | u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y; |
501 | u8 pitch_x, pitch_y, resolution; | |
2562756d MO |
502 | |
503 | /* Device initialization */ | |
504 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, | |
5992262d | 505 | &dev_ctrl, 0, true); |
2562756d MO |
506 | if (ret < 0) { |
507 | dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret); | |
508 | goto exit; | |
509 | } | |
510 | ||
5992262d MO |
511 | dev_ctrl &= ~U1_DISABLE_DEV; |
512 | dev_ctrl |= U1_TP_ABS_MODE; | |
2562756d | 513 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
5992262d | 514 | NULL, dev_ctrl, false); |
2562756d MO |
515 | if (ret < 0) { |
516 | dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret); | |
517 | goto exit; | |
518 | } | |
519 | ||
520 | ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X, | |
5992262d | 521 | &sen_line_num_x, 0, true); |
2562756d MO |
522 | if (ret < 0) { |
523 | dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret); | |
524 | goto exit; | |
525 | } | |
526 | ||
527 | ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y, | |
5992262d | 528 | &sen_line_num_y, 0, true); |
2c346889 | 529 | if (ret < 0) { |
2562756d MO |
530 | dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret); |
531 | goto exit; | |
532 | } | |
533 | ||
534 | ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X, | |
5992262d | 535 | &pitch_x, 0, true); |
2562756d MO |
536 | if (ret < 0) { |
537 | dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret); | |
538 | goto exit; | |
539 | } | |
540 | ||
541 | ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y, | |
5992262d | 542 | &pitch_y, 0, true); |
2562756d MO |
543 | if (ret < 0) { |
544 | dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret); | |
545 | goto exit; | |
546 | } | |
547 | ||
548 | ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS, | |
5992262d | 549 | &resolution, 0, true); |
2562756d MO |
550 | if (ret < 0) { |
551 | dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret); | |
552 | goto exit; | |
553 | } | |
5d8c720d | 554 | pri_data->x_active_len_mm = |
5992262d | 555 | (pitch_x * (sen_line_num_x - 1)) / 10; |
5d8c720d | 556 | pri_data->y_active_len_mm = |
5992262d | 557 | (pitch_y * (sen_line_num_y - 1)) / 10; |
5d8c720d MO |
558 | |
559 | pri_data->x_max = | |
5992262d | 560 | (resolution << 2) * (sen_line_num_x - 1); |
c7083d3f | 561 | pri_data->x_min = 1; |
5d8c720d | 562 | pri_data->y_max = |
5992262d | 563 | (resolution << 2) * (sen_line_num_y - 1); |
c7083d3f | 564 | pri_data->y_min = 1; |
2562756d MO |
565 | |
566 | ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN, | |
5992262d | 567 | &tmp, 0, true); |
2562756d MO |
568 | if (ret < 0) { |
569 | dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret); | |
570 | goto exit; | |
571 | } | |
5992262d MO |
572 | if ((tmp & 0x0F) == (tmp & 0xF0) >> 4) { |
573 | pri_data->btn_cnt = (tmp & 0x0F); | |
c7083d3f MO |
574 | } else { |
575 | /* Button pad */ | |
576 | pri_data->btn_cnt = 1; | |
577 | } | |
2562756d | 578 | |
5d8c720d | 579 | pri_data->has_sp = 0; |
2562756d MO |
580 | /* Check StickPointer device */ |
581 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP, | |
5992262d | 582 | &tmp, 0, true); |
2562756d MO |
583 | if (ret < 0) { |
584 | dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret); | |
585 | goto exit; | |
586 | } | |
5992262d MO |
587 | if (tmp & U1_DEVTYPE_SP_SUPPORT) { |
588 | dev_ctrl |= U1_SP_ABS_MODE; | |
5d8c720d | 589 | ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
5992262d | 590 | NULL, dev_ctrl, false); |
5d8c720d MO |
591 | if (ret < 0) { |
592 | dev_err(&hdev->dev, "failed SP mode (%d)\n", ret); | |
593 | goto exit; | |
594 | } | |
595 | ||
596 | ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN, | |
597 | &pri_data->sp_btn_info, 0, true); | |
598 | if (ret < 0) { | |
599 | dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret); | |
600 | goto exit; | |
601 | } | |
602 | pri_data->has_sp = 1; | |
603 | } | |
c7083d3f | 604 | pri_data->max_fingers = 5; |
5d8c720d MO |
605 | exit: |
606 | return ret; | |
607 | } | |
608 | ||
73196ebe MO |
609 | static int T4_init(struct hid_device *hdev, struct alps_dev *pri_data) |
610 | { | |
611 | int ret; | |
612 | u8 tmp, sen_line_num_x, sen_line_num_y; | |
613 | ||
614 | ret = t4_read_write_register(hdev, T4_PRM_ID_CONFIG_3, &tmp, 0, true); | |
615 | if (ret < 0) { | |
616 | dev_err(&hdev->dev, "failed T4_PRM_ID_CONFIG_3 (%d)\n", ret); | |
617 | goto exit; | |
618 | } | |
619 | sen_line_num_x = 16 + ((tmp & 0x0F) | (tmp & 0x08 ? 0xF0 : 0)); | |
620 | sen_line_num_y = 12 + (((tmp & 0xF0) >> 4) | (tmp & 0x80 ? 0xF0 : 0)); | |
621 | ||
622 | pri_data->x_max = sen_line_num_x * T4_COUNT_PER_ELECTRODE; | |
623 | pri_data->x_min = T4_COUNT_PER_ELECTRODE; | |
624 | pri_data->y_max = sen_line_num_y * T4_COUNT_PER_ELECTRODE; | |
625 | pri_data->y_min = T4_COUNT_PER_ELECTRODE; | |
626 | pri_data->x_active_len_mm = pri_data->y_active_len_mm = 0; | |
627 | pri_data->btn_cnt = 1; | |
628 | ||
629 | ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, &tmp, 0, true); | |
630 | if (ret < 0) { | |
631 | dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret); | |
632 | goto exit; | |
633 | } | |
634 | tmp |= 0x02; | |
635 | ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, NULL, tmp, false); | |
636 | if (ret < 0) { | |
637 | dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret); | |
638 | goto exit; | |
639 | } | |
640 | ||
641 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1, | |
642 | NULL, T4_I2C_ABS, false); | |
643 | if (ret < 0) { | |
644 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", ret); | |
645 | goto exit; | |
646 | } | |
647 | ||
648 | ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, NULL, | |
649 | T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false); | |
650 | if (ret < 0) { | |
651 | dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", ret); | |
652 | goto exit; | |
653 | } | |
654 | pri_data->max_fingers = 5; | |
655 | pri_data->has_sp = 0; | |
656 | exit: | |
657 | return ret; | |
658 | } | |
659 | ||
7dd8db68 BT |
660 | static int alps_sp_open(struct input_dev *dev) |
661 | { | |
662 | struct hid_device *hid = input_get_drvdata(dev); | |
663 | ||
664 | return hid_hw_open(hid); | |
665 | } | |
666 | ||
667 | static void alps_sp_close(struct input_dev *dev) | |
668 | { | |
669 | struct hid_device *hid = input_get_drvdata(dev); | |
670 | ||
671 | hid_hw_close(hid); | |
672 | } | |
673 | ||
5d8c720d MO |
674 | static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) |
675 | { | |
73196ebe | 676 | struct alps_dev *data = hid_get_drvdata(hdev); |
5d8c720d MO |
677 | struct input_dev *input = hi->input, *input2; |
678 | int ret; | |
679 | int res_x, res_y, i; | |
680 | ||
681 | data->input = input; | |
682 | ||
683 | hid_dbg(hdev, "Opening low level driver\n"); | |
684 | ret = hid_hw_open(hdev); | |
685 | if (ret) | |
686 | return ret; | |
687 | ||
688 | /* Allow incoming hid reports */ | |
689 | hid_device_io_start(hdev); | |
73196ebe MO |
690 | switch (data->dev_type) { |
691 | case T4: | |
692 | ret = T4_init(hdev, data); | |
693 | break; | |
694 | case U1: | |
695 | ret = u1_init(hdev, data); | |
696 | break; | |
697 | default: | |
698 | break; | |
699 | } | |
5d8c720d MO |
700 | |
701 | if (ret) | |
702 | goto exit; | |
2562756d MO |
703 | |
704 | __set_bit(EV_ABS, input->evbit); | |
c7083d3f MO |
705 | input_set_abs_params(input, ABS_MT_POSITION_X, |
706 | data->x_min, data->x_max, 0, 0); | |
707 | input_set_abs_params(input, ABS_MT_POSITION_Y, | |
708 | data->y_min, data->y_max, 0, 0); | |
2562756d | 709 | |
ce6abcf8 MO |
710 | if (data->x_active_len_mm && data->y_active_len_mm) { |
711 | res_x = (data->x_max - 1) / data->x_active_len_mm; | |
712 | res_y = (data->y_max - 1) / data->y_active_len_mm; | |
2562756d MO |
713 | |
714 | input_abs_set_res(input, ABS_MT_POSITION_X, res_x); | |
715 | input_abs_set_res(input, ABS_MT_POSITION_Y, res_y); | |
716 | } | |
717 | ||
718 | input_set_abs_params(input, ABS_MT_PRESSURE, 0, 64, 0, 0); | |
719 | ||
c7083d3f | 720 | input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); |
2562756d MO |
721 | |
722 | __set_bit(EV_KEY, input->evbit); | |
c7083d3f MO |
723 | |
724 | if (data->btn_cnt == 1) | |
2562756d | 725 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
2562756d | 726 | |
ce6abcf8 | 727 | for (i = 0; i < data->btn_cnt; i++) |
2562756d MO |
728 | __set_bit(BTN_LEFT + i, input->keybit); |
729 | ||
2562756d | 730 | /* Stick device initialization */ |
5d8c720d | 731 | if (data->has_sp) { |
2562756d MO |
732 | input2 = input_allocate_device(); |
733 | if (!input2) { | |
8d2e77b3 | 734 | ret = -ENOMEM; |
2562756d MO |
735 | goto exit; |
736 | } | |
737 | ||
819d64e5 | 738 | data->input2 = input2; |
2562756d MO |
739 | input2->phys = input->phys; |
740 | input2->name = "DualPoint Stick"; | |
741 | input2->id.bustype = BUS_I2C; | |
742 | input2->id.vendor = input->id.vendor; | |
743 | input2->id.product = input->id.product; | |
744 | input2->id.version = input->id.version; | |
745 | input2->dev.parent = input->dev.parent; | |
746 | ||
7dd8db68 BT |
747 | input_set_drvdata(input2, hdev); |
748 | input2->open = alps_sp_open; | |
749 | input2->close = alps_sp_close; | |
750 | ||
2562756d | 751 | __set_bit(EV_KEY, input2->evbit); |
ce6abcf8 MO |
752 | data->sp_btn_cnt = (data->sp_btn_info & 0x0F); |
753 | for (i = 0; i < data->sp_btn_cnt; i++) | |
2562756d MO |
754 | __set_bit(BTN_LEFT + i, input2->keybit); |
755 | ||
756 | __set_bit(EV_REL, input2->evbit); | |
757 | __set_bit(REL_X, input2->relbit); | |
758 | __set_bit(REL_Y, input2->relbit); | |
759 | __set_bit(INPUT_PROP_POINTER, input2->propbit); | |
760 | __set_bit(INPUT_PROP_POINTING_STICK, input2->propbit); | |
761 | ||
c7083d3f | 762 | if (input_register_device(data->input2)) { |
2562756d | 763 | input_free_device(input2); |
fa8ba6e5 | 764 | ret = -ENOENT; |
2562756d MO |
765 | goto exit; |
766 | } | |
767 | } | |
768 | ||
769 | exit: | |
770 | hid_device_io_stop(hdev); | |
771 | hid_hw_close(hdev); | |
772 | return ret; | |
773 | } | |
774 | ||
775 | static int alps_input_mapping(struct hid_device *hdev, | |
776 | struct hid_input *hi, struct hid_field *field, | |
777 | struct hid_usage *usage, unsigned long **bit, int *max) | |
778 | { | |
779 | return -1; | |
780 | } | |
781 | ||
782 | static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
783 | { | |
73196ebe | 784 | struct alps_dev *data = NULL; |
2562756d | 785 | int ret; |
73196ebe | 786 | data = devm_kzalloc(&hdev->dev, sizeof(struct alps_dev), GFP_KERNEL); |
2562756d MO |
787 | if (!data) |
788 | return -ENOMEM; | |
789 | ||
790 | data->hdev = hdev; | |
791 | hid_set_drvdata(hdev, data); | |
792 | ||
793 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
794 | ||
795 | ret = hid_parse(hdev); | |
796 | if (ret) { | |
797 | hid_err(hdev, "parse failed\n"); | |
798 | return ret; | |
799 | } | |
800 | ||
73196ebe MO |
801 | switch (hdev->product) { |
802 | case HID_DEVICE_ID_ALPS_T4_BTNLESS: | |
803 | data->dev_type = T4; | |
804 | break; | |
805 | case HID_DEVICE_ID_ALPS_U1_DUAL: | |
287b8e11 | 806 | case HID_DEVICE_ID_ALPS_U1: |
185af3e7 | 807 | case HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY: |
73196ebe MO |
808 | data->dev_type = U1; |
809 | break; | |
810 | default: | |
811 | data->dev_type = UNKNOWN; | |
812 | } | |
813 | ||
2562756d MO |
814 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
815 | if (ret) { | |
816 | hid_err(hdev, "hw start failed\n"); | |
817 | return ret; | |
818 | } | |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
823 | static void alps_remove(struct hid_device *hdev) | |
824 | { | |
825 | hid_hw_stop(hdev); | |
2562756d MO |
826 | } |
827 | ||
828 | static const struct hid_device_id alps_id[] = { | |
829 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, | |
819d64e5 | 830 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) }, |
287b8e11 MO |
831 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, |
832 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1) }, | |
73196ebe MO |
833 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, |
834 | USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) }, | |
2562756d MO |
835 | { } |
836 | }; | |
837 | MODULE_DEVICE_TABLE(hid, alps_id); | |
838 | ||
839 | static struct hid_driver alps_driver = { | |
840 | .name = "hid-alps", | |
841 | .id_table = alps_id, | |
842 | .probe = alps_probe, | |
843 | .remove = alps_remove, | |
844 | .raw_event = alps_raw_event, | |
845 | .input_mapping = alps_input_mapping, | |
846 | .input_configured = alps_input_configured, | |
847 | #ifdef CONFIG_PM | |
848 | .resume = alps_post_resume, | |
849 | .reset_resume = alps_post_reset, | |
850 | #endif | |
851 | }; | |
852 | ||
853 | module_hid_driver(alps_driver); | |
854 | ||
855 | MODULE_AUTHOR("Masaki Ota <masaki.ota@jp.alps.com>"); | |
856 | MODULE_DESCRIPTION("ALPS HID driver"); | |
857 | MODULE_LICENSE("GPL"); |