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1 | /* |
2 | * extcon-arizona.c - Extcon driver Wolfson Arizona devices |
3 | * |
4 | * Copyright (C) 2012 Wolfson Microelectronics plc |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | */ |
16 | |
17 | #include <linux/kernel.h> |
18 | #include <linux/module.h> |
19 | #include <linux/i2c.h> |
20 | #include <linux/slab.h> |
21 | #include <linux/interrupt.h> |
22 | #include <linux/err.h> |
23 | #include <linux/gpio.h> |
24 | #include <linux/input.h> |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> |
27 | #include <linux/regulator/consumer.h> |
28 | #include <linux/extcon.h> |
29 | |
30 | #include <sound/soc.h> |
31 | |
32 | #include <linux/mfd/arizona/core.h> |
33 | #include <linux/mfd/arizona/pdata.h> |
34 | #include <linux/mfd/arizona/registers.h> |
35 | |
36 | #define ARIZONA_MAX_MICD_RANGE 8 |
37 | |
38 | #define ARIZONA_ACCDET_MODE_MIC 0 |
39 | #define ARIZONA_ACCDET_MODE_HPL 1 |
40 | #define ARIZONA_ACCDET_MODE_HPR 2 |
41 | |
42 | #define ARIZONA_MICD_CLAMP_MODE_JDL 0x4 |
43 | #define ARIZONA_MICD_CLAMP_MODE_JDH 0x5 |
44 | #define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9 |
45 | #define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb |
46 | |
47 | #define ARIZONA_HPDET_MAX 10000 |
48 | |
49 | #define HPDET_DEBOUNCE 500 |
50 | #define DEFAULT_MICD_TIMEOUT 2000 |
51 | |
52 | #define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \ |
53 | ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \ |
54 | ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \ |
55 | ARIZONA_MICD_LVL_7) |
56 | |
57 | #define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7) |
58 | |
59 | #define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8) |
60 | |
61 | struct arizona_extcon_info { |
62 | struct device *dev; |
63 | struct arizona *arizona; |
64 | struct mutex lock; |
65 | struct regulator *micvdd; |
66 | struct input_dev *input; |
67 | |
68 | u16 last_jackdet; |
69 | |
70 | int micd_mode; |
71 | const struct arizona_micd_config *micd_modes; |
72 | int micd_num_modes; |
73 | |
74 | const struct arizona_micd_range *micd_ranges; |
75 | int num_micd_ranges; |
76 | |
77 | int micd_timeout; |
78 | |
79 | bool micd_reva; |
80 | bool micd_clamp; |
81 | |
82 | struct delayed_work hpdet_work; |
83 | struct delayed_work micd_detect_work; |
84 | struct delayed_work micd_timeout_work; |
85 | |
86 | bool hpdet_active; |
87 | bool hpdet_done; |
88 | bool hpdet_retried; |
89 | |
90 | int num_hpdet_res; |
91 | unsigned int hpdet_res[3]; |
92 | |
93 | bool mic; |
94 | bool detecting; |
95 | int jack_flips; |
96 | |
97 | int hpdet_ip; |
98 | |
99 | struct extcon_dev *edev; |
100 | }; |
101 | |
102 | static const struct arizona_micd_config micd_default_modes[] = { |
103 | { ARIZONA_ACCDET_SRC, 1, 0 }, |
104 | { 0, 2, 1 }, |
105 | }; |
106 | |
107 | static const struct arizona_micd_range micd_default_ranges[] = { |
108 | { .max = 11, .key = BTN_0 }, |
109 | { .max = 28, .key = BTN_1 }, |
110 | { .max = 54, .key = BTN_2 }, |
111 | { .max = 100, .key = BTN_3 }, |
112 | { .max = 186, .key = BTN_4 }, |
113 | { .max = 430, .key = BTN_5 }, |
114 | }; |
115 | |
116 | static const int arizona_micd_levels[] = { |
117 | 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, |
118 | 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, |
119 | 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, |
120 | 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, |
121 | 1257, |
122 | }; |
123 | |
124 | #define ARIZONA_CABLE_MECHANICAL 0 |
125 | #define ARIZONA_CABLE_MICROPHONE 1 |
126 | #define ARIZONA_CABLE_HEADPHONE 2 |
127 | #define ARIZONA_CABLE_LINEOUT 3 |
128 | |
129 | static const char *arizona_cable[] = { |
130 | "Mechanical", |
131 | "Microphone", |
132 | "Headphone", |
133 | "Line-out", |
134 | NULL, |
135 | }; |
136 | |
137 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info); |
138 | |
139 | static void arizona_extcon_do_magic(struct arizona_extcon_info *info, |
140 | unsigned int magic) |
141 | { |
142 | struct arizona *arizona = info->arizona; |
143 | int ret; |
144 | |
145 | mutex_lock(&arizona->dapm->card->dapm_mutex); |
146 | |
147 | arizona->hpdet_magic = magic; |
148 | |
149 | /* Keep the HP output stages disabled while doing the magic */ |
150 | if (magic) { |
151 | ret = regmap_update_bits(arizona->regmap, |
152 | ARIZONA_OUTPUT_ENABLES_1, |
153 | ARIZONA_OUT1L_ENA | |
154 | ARIZONA_OUT1R_ENA, 0); |
155 | if (ret != 0) |
156 | dev_warn(arizona->dev, |
157 | "Failed to disable headphone outputs: %d\n", |
158 | ret); |
159 | } |
160 | |
161 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, |
162 | magic); |
163 | if (ret != 0) |
164 | dev_warn(arizona->dev, "Failed to do magic: %d\n", |
165 | ret); |
166 | |
167 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, |
168 | magic); |
169 | if (ret != 0) |
170 | dev_warn(arizona->dev, "Failed to do magic: %d\n", |
171 | ret); |
172 | |
173 | /* Restore the desired state while not doing the magic */ |
174 | if (!magic) { |
175 | ret = regmap_update_bits(arizona->regmap, |
176 | ARIZONA_OUTPUT_ENABLES_1, |
177 | ARIZONA_OUT1L_ENA | |
178 | ARIZONA_OUT1R_ENA, arizona->hp_ena); |
179 | if (ret != 0) |
180 | dev_warn(arizona->dev, |
181 | "Failed to restore headphone outputs: %d\n", |
182 | ret); |
183 | } |
184 | |
185 | mutex_unlock(&arizona->dapm->card->dapm_mutex); |
186 | } |
187 | |
188 | static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
189 | { |
190 | struct arizona *arizona = info->arizona; |
191 | |
192 | mode %= info->micd_num_modes; |
193 | |
194 | if (arizona->pdata.micd_pol_gpio > 0) |
195 | gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, |
196 | info->micd_modes[mode].gpio); |
197 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
198 | ARIZONA_MICD_BIAS_SRC_MASK, |
199 | info->micd_modes[mode].bias << |
200 | ARIZONA_MICD_BIAS_SRC_SHIFT); |
201 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
202 | ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); |
203 | |
204 | info->micd_mode = mode; |
205 | |
206 | dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); |
207 | } |
208 | |
209 | static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
210 | { |
211 | switch (info->micd_modes[0].bias) { |
212 | case 1: |
213 | return "MICBIAS1"; |
214 | case 2: |
215 | return "MICBIAS2"; |
216 | case 3: |
217 | return "MICBIAS3"; |
218 | default: |
219 | return "MICVDD"; |
220 | } |
221 | } |
222 | |
223 | static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) |
224 | { |
225 | struct arizona *arizona = info->arizona; |
226 | const char *widget = arizona_extcon_get_micbias(info); |
227 | struct snd_soc_dapm_context *dapm = arizona->dapm; |
228 | int ret; |
229 | |
230 | ret = snd_soc_dapm_force_enable_pin(dapm, widget); |
231 | if (ret != 0) |
232 | dev_warn(arizona->dev, "Failed to enable %s: %d\n", |
233 | widget, ret); |
234 | |
235 | snd_soc_dapm_sync(dapm); |
236 | |
237 | if (!arizona->pdata.micd_force_micbias) { |
238 | ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); |
239 | if (ret != 0) |
240 | dev_warn(arizona->dev, "Failed to disable %s: %d\n", |
241 | widget, ret); |
242 | |
243 | snd_soc_dapm_sync(dapm); |
244 | } |
245 | } |
246 | |
247 | static void arizona_start_mic(struct arizona_extcon_info *info) |
248 | { |
249 | struct arizona *arizona = info->arizona; |
250 | bool change; |
251 | int ret; |
252 | |
253 | /* Microphone detection can't use idle mode */ |
254 | pm_runtime_get(info->dev); |
255 | |
256 | if (info->detecting) { |
257 | ret = regulator_allow_bypass(info->micvdd, false); |
258 | if (ret != 0) { |
259 | dev_err(arizona->dev, |
260 | "Failed to regulate MICVDD: %d\n", |
261 | ret); |
262 | } |
263 | } |
264 | |
265 | ret = regulator_enable(info->micvdd); |
266 | if (ret != 0) { |
267 | dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", |
268 | ret); |
269 | } |
270 | |
271 | if (info->micd_reva) { |
272 | regmap_write(arizona->regmap, 0x80, 0x3); |
273 | regmap_write(arizona->regmap, 0x294, 0); |
274 | regmap_write(arizona->regmap, 0x80, 0x0); |
275 | } |
276 | |
277 | regmap_update_bits(arizona->regmap, |
278 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
279 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
280 | |
281 | arizona_extcon_pulse_micbias(info); |
282 | |
283 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
284 | ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, |
285 | &change); |
286 | if (!change) { |
287 | regulator_disable(info->micvdd); |
288 | pm_runtime_put_autosuspend(info->dev); |
289 | } |
290 | } |
291 | |
292 | static void arizona_stop_mic(struct arizona_extcon_info *info) |
293 | { |
294 | struct arizona *arizona = info->arizona; |
295 | const char *widget = arizona_extcon_get_micbias(info); |
296 | struct snd_soc_dapm_context *dapm = arizona->dapm; |
297 | bool change; |
298 | int ret; |
299 | |
300 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
301 | ARIZONA_MICD_ENA, 0, |
302 | &change); |
303 | |
304 | ret = snd_soc_dapm_disable_pin(dapm, widget); |
305 | if (ret != 0) |
306 | dev_warn(arizona->dev, |
307 | "Failed to disable %s: %d\n", |
308 | widget, ret); |
309 | |
310 | snd_soc_dapm_sync(dapm); |
311 | |
312 | if (info->micd_reva) { |
313 | regmap_write(arizona->regmap, 0x80, 0x3); |
314 | regmap_write(arizona->regmap, 0x294, 2); |
315 | regmap_write(arizona->regmap, 0x80, 0x0); |
316 | } |
317 | |
318 | ret = regulator_allow_bypass(info->micvdd, true); |
319 | if (ret != 0) { |
320 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
321 | ret); |
322 | } |
323 | |
324 | if (change) { |
325 | regulator_disable(info->micvdd); |
326 | pm_runtime_mark_last_busy(info->dev); |
327 | pm_runtime_put_autosuspend(info->dev); |
328 | } |
329 | } |
330 | |
331 | static struct { |
332 | unsigned int threshold; |
333 | unsigned int factor_a; |
334 | unsigned int factor_b; |
335 | } arizona_hpdet_b_ranges[] = { |
336 | { 100, 5528, 362464 }, |
337 | { 169, 11084, 6186851 }, |
338 | { 169, 11065, 65460395 }, |
339 | }; |
340 | |
341 | #define ARIZONA_HPDET_B_RANGE_MAX 0x3fb |
342 | |
343 | static struct { |
344 | int min; |
345 | int max; |
346 | } arizona_hpdet_c_ranges[] = { |
347 | { 0, 30 }, |
348 | { 8, 100 }, |
349 | { 100, 1000 }, |
350 | { 1000, 10000 }, |
351 | }; |
352 | |
353 | static int arizona_hpdet_read(struct arizona_extcon_info *info) |
354 | { |
355 | struct arizona *arizona = info->arizona; |
356 | unsigned int val, range; |
357 | int ret; |
358 | |
359 | ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); |
360 | if (ret != 0) { |
361 | dev_err(arizona->dev, "Failed to read HPDET status: %d\n", |
362 | ret); |
363 | return ret; |
364 | } |
365 | |
366 | switch (info->hpdet_ip) { |
367 | case 0: |
368 | if (!(val & ARIZONA_HP_DONE)) { |
369 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
370 | val); |
371 | return -EAGAIN; |
372 | } |
373 | |
374 | val &= ARIZONA_HP_LVL_MASK; |
375 | break; |
376 | |
377 | case 1: |
378 | if (!(val & ARIZONA_HP_DONE_B)) { |
379 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
380 | val); |
381 | return -EAGAIN; |
382 | } |
383 | |
384 | ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); |
385 | if (ret != 0) { |
386 | dev_err(arizona->dev, "Failed to read HP value: %d\n", |
387 | ret); |
388 | return -EAGAIN; |
389 | } |
390 | |
391 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
392 | &range); |
393 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
394 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
395 | |
396 | if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && |
397 | (val < arizona_hpdet_b_ranges[range].threshold || |
398 | val >= ARIZONA_HPDET_B_RANGE_MAX)) { |
399 | range++; |
400 | dev_dbg(arizona->dev, "Moving to HPDET range %d\n", |
401 | range); |
402 | regmap_update_bits(arizona->regmap, |
403 | ARIZONA_HEADPHONE_DETECT_1, |
404 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
405 | range << |
406 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
407 | return -EAGAIN; |
408 | } |
409 | |
410 | /* If we go out of range report top of range */ |
411 | if (val < arizona_hpdet_b_ranges[range].threshold || |
412 | val >= ARIZONA_HPDET_B_RANGE_MAX) { |
413 | dev_dbg(arizona->dev, "Measurement out of range\n"); |
414 | return ARIZONA_HPDET_MAX; |
415 | } |
416 | |
417 | dev_dbg(arizona->dev, "HPDET read %d in range %d\n", |
418 | val, range); |
419 | |
420 | val = arizona_hpdet_b_ranges[range].factor_b |
421 | / ((val * 100) - |
422 | arizona_hpdet_b_ranges[range].factor_a); |
423 | break; |
424 | |
425 | default: |
426 | dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", |
427 | info->hpdet_ip); |
428 | case 2: |
429 | if (!(val & ARIZONA_HP_DONE_B)) { |
430 | dev_err(arizona->dev, "HPDET did not complete: %x\n", |
431 | val); |
432 | return -EAGAIN; |
433 | } |
434 | |
435 | val &= ARIZONA_HP_LVL_B_MASK; |
436 | /* Convert to ohms, the value is in 0.5 ohm increments */ |
437 | val /= 2; |
438 | |
439 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
440 | &range); |
441 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) |
442 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; |
443 | |
444 | /* Skip up a range, or report? */ |
445 | if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && |
446 | (val >= arizona_hpdet_c_ranges[range].max)) { |
447 | range++; |
448 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", |
449 | arizona_hpdet_c_ranges[range].min, |
450 | arizona_hpdet_c_ranges[range].max); |
451 | regmap_update_bits(arizona->regmap, |
452 | ARIZONA_HEADPHONE_DETECT_1, |
453 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, |
454 | range << |
455 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); |
456 | return -EAGAIN; |
457 | } |
458 | |
459 | if (range && (val < arizona_hpdet_c_ranges[range].min)) { |
460 | dev_dbg(arizona->dev, "Reporting range boundary %d\n", |
461 | arizona_hpdet_c_ranges[range].min); |
462 | val = arizona_hpdet_c_ranges[range].min; |
463 | } |
464 | } |
465 | |
466 | dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); |
467 | return val; |
468 | } |
469 | |
470 | static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, |
471 | bool *mic) |
472 | { |
473 | struct arizona *arizona = info->arizona; |
474 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
475 | |
476 | /* |
477 | * If we're using HPDET for accessory identification we need |
478 | * to take multiple measurements, step through them in sequence. |
479 | */ |
480 | if (arizona->pdata.hpdet_acc_id) { |
481 | info->hpdet_res[info->num_hpdet_res++] = *reading; |
482 | |
483 | /* Only check the mic directly if we didn't already ID it */ |
484 | if (id_gpio && info->num_hpdet_res == 1) { |
485 | dev_dbg(arizona->dev, "Measuring mic\n"); |
486 | |
487 | regmap_update_bits(arizona->regmap, |
488 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
489 | ARIZONA_ACCDET_MODE_MASK | |
490 | ARIZONA_ACCDET_SRC, |
491 | ARIZONA_ACCDET_MODE_HPR | |
492 | info->micd_modes[0].src); |
493 | |
494 | gpio_set_value_cansleep(id_gpio, 1); |
495 | |
496 | regmap_update_bits(arizona->regmap, |
497 | ARIZONA_HEADPHONE_DETECT_1, |
498 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
499 | return -EAGAIN; |
500 | } |
501 | |
502 | /* OK, got both. Now, compare... */ |
503 | dev_dbg(arizona->dev, "HPDET measured %d %d\n", |
504 | info->hpdet_res[0], info->hpdet_res[1]); |
505 | |
506 | /* Take the headphone impedance for the main report */ |
507 | *reading = info->hpdet_res[0]; |
508 | |
509 | /* Sometimes we get false readings due to slow insert */ |
510 | if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) { |
511 | dev_dbg(arizona->dev, "Retrying high impedance\n"); |
512 | info->num_hpdet_res = 0; |
513 | info->hpdet_retried = true; |
514 | arizona_start_hpdet_acc_id(info); |
515 | pm_runtime_put(info->dev); |
516 | return -EAGAIN; |
517 | } |
518 | |
519 | /* |
520 | * If we measure the mic as high impedance |
521 | */ |
522 | if (!id_gpio || info->hpdet_res[1] > 50) { |
523 | dev_dbg(arizona->dev, "Detected mic\n"); |
524 | *mic = true; |
525 | info->detecting = true; |
526 | } else { |
527 | dev_dbg(arizona->dev, "Detected headphone\n"); |
528 | } |
529 | |
530 | /* Make sure everything is reset back to the real polarity */ |
531 | regmap_update_bits(arizona->regmap, |
532 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
533 | ARIZONA_ACCDET_SRC, |
534 | info->micd_modes[0].src); |
535 | } |
536 | |
537 | return 0; |
538 | } |
539 | |
540 | static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
541 | { |
542 | struct arizona_extcon_info *info = data; |
543 | struct arizona *arizona = info->arizona; |
544 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
545 | int report = ARIZONA_CABLE_HEADPHONE; |
546 | int ret, reading; |
547 | bool mic = false; |
548 | |
549 | mutex_lock(&info->lock); |
550 | |
551 | /* If we got a spurious IRQ for some reason then ignore it */ |
552 | if (!info->hpdet_active) { |
553 | dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); |
554 | mutex_unlock(&info->lock); |
555 | return IRQ_NONE; |
556 | } |
557 | |
558 | /* If the cable was removed while measuring ignore the result */ |
559 | ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL); |
560 | if (ret < 0) { |
561 | dev_err(arizona->dev, "Failed to check cable state: %d\n", |
562 | ret); |
563 | goto out; |
564 | } else if (!ret) { |
565 | dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); |
566 | goto done; |
567 | } |
568 | |
569 | ret = arizona_hpdet_read(info); |
570 | if (ret == -EAGAIN) |
571 | goto out; |
572 | else if (ret < 0) |
573 | goto done; |
574 | reading = ret; |
575 | |
576 | /* Reset back to starting range */ |
577 | regmap_update_bits(arizona->regmap, |
578 | ARIZONA_HEADPHONE_DETECT_1, |
579 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
580 | 0); |
581 | |
582 | ret = arizona_hpdet_do_id(info, &reading, &mic); |
583 | if (ret == -EAGAIN) |
584 | goto out; |
585 | else if (ret < 0) |
586 | goto done; |
587 | |
588 | /* Report high impedence cables as line outputs */ |
589 | if (reading >= 5000) |
590 | report = ARIZONA_CABLE_LINEOUT; |
591 | else |
592 | report = ARIZONA_CABLE_HEADPHONE; |
593 | |
594 | ret = extcon_set_cable_state_(info->edev, report, true); |
595 | if (ret != 0) |
596 | dev_err(arizona->dev, "Failed to report HP/line: %d\n", |
597 | ret); |
598 | |
599 | done: |
600 | /* Reset back to starting range */ |
601 | regmap_update_bits(arizona->regmap, |
602 | ARIZONA_HEADPHONE_DETECT_1, |
603 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
604 | 0); |
605 | |
606 | arizona_extcon_do_magic(info, 0); |
607 | |
608 | if (id_gpio) |
609 | gpio_set_value_cansleep(id_gpio, 0); |
610 | |
611 | /* Revert back to MICDET mode */ |
612 | regmap_update_bits(arizona->regmap, |
613 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
614 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
615 | |
616 | /* If we have a mic then reenable MICDET */ |
617 | if (mic || info->mic) |
618 | arizona_start_mic(info); |
619 | |
620 | if (info->hpdet_active) { |
621 | pm_runtime_put_autosuspend(info->dev); |
622 | info->hpdet_active = false; |
623 | } |
624 | |
625 | info->hpdet_done = true; |
626 | |
627 | out: |
628 | mutex_unlock(&info->lock); |
629 | |
630 | return IRQ_HANDLED; |
631 | } |
632 | |
633 | static void arizona_identify_headphone(struct arizona_extcon_info *info) |
634 | { |
635 | struct arizona *arizona = info->arizona; |
636 | int ret; |
637 | |
638 | if (info->hpdet_done) |
639 | return; |
640 | |
641 | dev_dbg(arizona->dev, "Starting HPDET\n"); |
642 | |
643 | /* Make sure we keep the device enabled during the measurement */ |
644 | pm_runtime_get(info->dev); |
645 | |
646 | info->hpdet_active = true; |
647 | |
648 | if (info->mic) |
649 | arizona_stop_mic(info); |
650 | |
651 | arizona_extcon_do_magic(info, 0x4000); |
652 | |
653 | ret = regmap_update_bits(arizona->regmap, |
654 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
655 | ARIZONA_ACCDET_MODE_MASK, |
656 | ARIZONA_ACCDET_MODE_HPL); |
657 | if (ret != 0) { |
658 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
659 | goto err; |
660 | } |
661 | |
662 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, |
663 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
664 | if (ret != 0) { |
665 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", |
666 | ret); |
667 | goto err; |
668 | } |
669 | |
670 | return; |
671 | |
672 | err: |
673 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
674 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
675 | |
676 | /* Just report headphone */ |
677 | ret = extcon_set_cable_state_(info->edev, |
678 | ARIZONA_CABLE_HEADPHONE, true); |
679 | if (ret != 0) |
680 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); |
681 | |
682 | if (info->mic) |
683 | arizona_start_mic(info); |
684 | |
685 | info->hpdet_active = false; |
686 | } |
687 | |
688 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) |
689 | { |
690 | struct arizona *arizona = info->arizona; |
691 | int hp_reading = 32; |
692 | bool mic; |
693 | int ret; |
694 | |
695 | dev_dbg(arizona->dev, "Starting identification via HPDET\n"); |
696 | |
697 | /* Make sure we keep the device enabled during the measurement */ |
698 | pm_runtime_get_sync(info->dev); |
699 | |
700 | info->hpdet_active = true; |
701 | |
702 | arizona_extcon_do_magic(info, 0x4000); |
703 | |
704 | ret = regmap_update_bits(arizona->regmap, |
705 | ARIZONA_ACCESSORY_DETECT_MODE_1, |
706 | ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, |
707 | info->micd_modes[0].src | |
708 | ARIZONA_ACCDET_MODE_HPL); |
709 | if (ret != 0) { |
710 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); |
711 | goto err; |
712 | } |
713 | |
714 | if (arizona->pdata.hpdet_acc_id_line) { |
715 | ret = regmap_update_bits(arizona->regmap, |
716 | ARIZONA_HEADPHONE_DETECT_1, |
717 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); |
718 | if (ret != 0) { |
719 | dev_err(arizona->dev, |
720 | "Can't start HPDETL measurement: %d\n", |
721 | ret); |
722 | goto err; |
723 | } |
724 | } else { |
725 | arizona_hpdet_do_id(info, &hp_reading, &mic); |
726 | } |
727 | |
728 | return; |
729 | |
730 | err: |
731 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
732 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); |
733 | |
734 | /* Just report headphone */ |
735 | ret = extcon_set_cable_state_(info->edev, |
736 | ARIZONA_CABLE_HEADPHONE, true); |
737 | if (ret != 0) |
738 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); |
739 | |
740 | info->hpdet_active = false; |
741 | } |
742 | |
743 | static void arizona_micd_timeout_work(struct work_struct *work) |
744 | { |
745 | struct arizona_extcon_info *info = container_of(work, |
746 | struct arizona_extcon_info, |
747 | micd_timeout_work.work); |
748 | |
749 | mutex_lock(&info->lock); |
750 | |
751 | dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n"); |
752 | arizona_identify_headphone(info); |
753 | |
754 | info->detecting = false; |
755 | |
756 | arizona_stop_mic(info); |
757 | |
758 | mutex_unlock(&info->lock); |
759 | } |
760 | |
761 | static void arizona_micd_detect(struct work_struct *work) |
762 | { |
763 | struct arizona_extcon_info *info = container_of(work, |
764 | struct arizona_extcon_info, |
765 | micd_detect_work.work); |
766 | struct arizona *arizona = info->arizona; |
767 | unsigned int val = 0, lvl; |
768 | int ret, i, key; |
769 | |
770 | cancel_delayed_work_sync(&info->micd_timeout_work); |
771 | |
772 | mutex_lock(&info->lock); |
773 | |
774 | /* If the cable was removed while measuring ignore the result */ |
775 | ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL); |
776 | if (ret < 0) { |
777 | dev_err(arizona->dev, "Failed to check cable state: %d\n", |
778 | ret); |
779 | mutex_unlock(&info->lock); |
780 | return; |
781 | } else if (!ret) { |
782 | dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n"); |
783 | mutex_unlock(&info->lock); |
784 | return; |
785 | } |
786 | |
787 | for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) { |
788 | ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); |
789 | if (ret != 0) { |
790 | dev_err(arizona->dev, |
791 | "Failed to read MICDET: %d\n", ret); |
792 | mutex_unlock(&info->lock); |
793 | return; |
794 | } |
795 | |
796 | dev_dbg(arizona->dev, "MICDET: %x\n", val); |
797 | |
798 | if (!(val & ARIZONA_MICD_VALID)) { |
799 | dev_warn(arizona->dev, |
800 | "Microphone detection state invalid\n"); |
801 | mutex_unlock(&info->lock); |
802 | return; |
803 | } |
804 | } |
805 | |
806 | if (i == 10 && !(val & MICD_LVL_0_TO_8)) { |
807 | dev_err(arizona->dev, "Failed to get valid MICDET value\n"); |
808 | mutex_unlock(&info->lock); |
809 | return; |
810 | } |
811 | |
812 | /* Due to jack detect this should never happen */ |
813 | if (!(val & ARIZONA_MICD_STS)) { |
814 | dev_warn(arizona->dev, "Detected open circuit\n"); |
815 | info->detecting = false; |
816 | goto handled; |
817 | } |
818 | |
819 | /* If we got a high impedence we should have a headset, report it. */ |
820 | if (info->detecting && (val & ARIZONA_MICD_LVL_8)) { |
821 | arizona_identify_headphone(info); |
822 | |
823 | ret = extcon_set_cable_state_(info->edev, |
824 | ARIZONA_CABLE_MICROPHONE, true); |
825 | |
826 | if (ret != 0) |
827 | dev_err(arizona->dev, "Headset report failed: %d\n", |
828 | ret); |
829 | |
830 | /* Don't need to regulate for button detection */ |
831 | ret = regulator_allow_bypass(info->micvdd, true); |
832 | if (ret != 0) { |
833 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", |
834 | ret); |
835 | } |
836 | |
837 | info->mic = true; |
838 | info->detecting = false; |
839 | goto handled; |
840 | } |
841 | |
842 | /* If we detected a lower impedence during initial startup |
843 | * then we probably have the wrong polarity, flip it. Don't |
844 | * do this for the lowest impedences to speed up detection of |
845 | * plain headphones. If both polarities report a low |
846 | * impedence then give up and report headphones. |
847 | */ |
848 | if (info->detecting && (val & MICD_LVL_1_TO_7)) { |
849 | if (info->jack_flips >= info->micd_num_modes * 10) { |
850 | dev_dbg(arizona->dev, "Detected HP/line\n"); |
851 | arizona_identify_headphone(info); |
852 | |
853 | info->detecting = false; |
854 | |
855 | arizona_stop_mic(info); |
856 | } else { |
857 | info->micd_mode++; |
858 | if (info->micd_mode == info->micd_num_modes) |
859 | info->micd_mode = 0; |
860 | arizona_extcon_set_mode(info, info->micd_mode); |
861 | |
862 | info->jack_flips++; |
863 | } |
864 | |
865 | goto handled; |
866 | } |
867 | |
868 | /* |
869 | * If we're still detecting and we detect a short then we've |
870 | * got a headphone. Otherwise it's a button press. |
871 | */ |
872 | if (val & MICD_LVL_0_TO_7) { |
873 | if (info->mic) { |
874 | dev_dbg(arizona->dev, "Mic button detected\n"); |
875 | |
876 | lvl = val & ARIZONA_MICD_LVL_MASK; |
877 | lvl >>= ARIZONA_MICD_LVL_SHIFT; |
878 | |
879 | for (i = 0; i < info->num_micd_ranges; i++) |
880 | input_report_key(info->input, |
881 | info->micd_ranges[i].key, 0); |
882 | |
883 | WARN_ON(!lvl); |
884 | WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); |
885 | if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { |
886 | key = info->micd_ranges[ffs(lvl) - 1].key; |
887 | input_report_key(info->input, key, 1); |
888 | input_sync(info->input); |
889 | } |
890 | |
891 | } else if (info->detecting) { |
892 | dev_dbg(arizona->dev, "Headphone detected\n"); |
893 | info->detecting = false; |
894 | arizona_stop_mic(info); |
895 | |
896 | arizona_identify_headphone(info); |
897 | } else { |
898 | dev_warn(arizona->dev, "Button with no mic: %x\n", |
899 | val); |
900 | } |
901 | } else { |
902 | dev_dbg(arizona->dev, "Mic button released\n"); |
903 | for (i = 0; i < info->num_micd_ranges; i++) |
904 | input_report_key(info->input, |
905 | info->micd_ranges[i].key, 0); |
906 | input_sync(info->input); |
907 | arizona_extcon_pulse_micbias(info); |
908 | } |
909 | |
910 | handled: |
911 | if (info->detecting) |
912 | queue_delayed_work(system_power_efficient_wq, |
913 | &info->micd_timeout_work, |
914 | msecs_to_jiffies(info->micd_timeout)); |
915 | |
916 | pm_runtime_mark_last_busy(info->dev); |
917 | mutex_unlock(&info->lock); |
918 | } |
919 | |
920 | static irqreturn_t arizona_micdet(int irq, void *data) |
921 | { |
922 | struct arizona_extcon_info *info = data; |
923 | struct arizona *arizona = info->arizona; |
924 | int debounce = arizona->pdata.micd_detect_debounce; |
925 | |
926 | cancel_delayed_work_sync(&info->micd_detect_work); |
927 | cancel_delayed_work_sync(&info->micd_timeout_work); |
928 | |
929 | mutex_lock(&info->lock); |
930 | if (!info->detecting) |
931 | debounce = 0; |
932 | mutex_unlock(&info->lock); |
933 | |
934 | if (debounce) |
935 | queue_delayed_work(system_power_efficient_wq, |
936 | &info->micd_detect_work, |
937 | msecs_to_jiffies(debounce)); |
938 | else |
939 | arizona_micd_detect(&info->micd_detect_work.work); |
940 | |
941 | return IRQ_HANDLED; |
942 | } |
943 | |
944 | static void arizona_hpdet_work(struct work_struct *work) |
945 | { |
946 | struct arizona_extcon_info *info = container_of(work, |
947 | struct arizona_extcon_info, |
948 | hpdet_work.work); |
949 | |
950 | mutex_lock(&info->lock); |
951 | arizona_start_hpdet_acc_id(info); |
952 | mutex_unlock(&info->lock); |
953 | } |
954 | |
955 | static irqreturn_t arizona_jackdet(int irq, void *data) |
956 | { |
957 | struct arizona_extcon_info *info = data; |
958 | struct arizona *arizona = info->arizona; |
959 | unsigned int val, present, mask; |
960 | bool cancelled_hp, cancelled_mic; |
961 | int ret, i; |
962 | |
963 | cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work); |
964 | cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work); |
965 | |
966 | pm_runtime_get_sync(info->dev); |
967 | |
968 | mutex_lock(&info->lock); |
969 | |
970 | if (arizona->pdata.jd_gpio5) { |
971 | mask = ARIZONA_MICD_CLAMP_STS; |
972 | if (arizona->pdata.jd_invert) |
973 | present = ARIZONA_MICD_CLAMP_STS; |
974 | else |
975 | present = 0; |
976 | } else { |
977 | mask = ARIZONA_JD1_STS; |
978 | if (arizona->pdata.jd_invert) |
979 | present = 0; |
980 | else |
981 | present = ARIZONA_JD1_STS; |
982 | } |
983 | |
984 | ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
985 | if (ret != 0) { |
986 | dev_err(arizona->dev, "Failed to read jackdet status: %d\n", |
987 | ret); |
988 | mutex_unlock(&info->lock); |
989 | pm_runtime_put_autosuspend(info->dev); |
990 | return IRQ_NONE; |
991 | } |
992 | |
993 | val &= mask; |
994 | if (val == info->last_jackdet) { |
995 | dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); |
996 | if (cancelled_hp) |
997 | queue_delayed_work(system_power_efficient_wq, |
998 | &info->hpdet_work, |
999 | msecs_to_jiffies(HPDET_DEBOUNCE)); |
1000 | |
1001 | if (cancelled_mic) { |
1002 | int micd_timeout = info->micd_timeout; |
1003 | |
1004 | queue_delayed_work(system_power_efficient_wq, |
1005 | &info->micd_timeout_work, |
1006 | msecs_to_jiffies(micd_timeout)); |
1007 | } |
1008 | |
1009 | goto out; |
1010 | } |
1011 | info->last_jackdet = val; |
1012 | |
1013 | if (info->last_jackdet == present) { |
1014 | dev_dbg(arizona->dev, "Detected jack\n"); |
1015 | ret = extcon_set_cable_state_(info->edev, |
1016 | ARIZONA_CABLE_MECHANICAL, true); |
1017 | |
1018 | if (ret != 0) |
1019 | dev_err(arizona->dev, "Mechanical report failed: %d\n", |
1020 | ret); |
1021 | |
1022 | if (!arizona->pdata.hpdet_acc_id) { |
1023 | info->detecting = true; |
1024 | info->mic = false; |
1025 | info->jack_flips = 0; |
1026 | |
1027 | arizona_start_mic(info); |
1028 | } else { |
1029 | queue_delayed_work(system_power_efficient_wq, |
1030 | &info->hpdet_work, |
1031 | msecs_to_jiffies(HPDET_DEBOUNCE)); |
1032 | } |
1033 | |
1034 | regmap_update_bits(arizona->regmap, |
1035 | ARIZONA_JACK_DETECT_DEBOUNCE, |
1036 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); |
1037 | } else { |
1038 | dev_dbg(arizona->dev, "Detected jack removal\n"); |
1039 | |
1040 | arizona_stop_mic(info); |
1041 | |
1042 | info->num_hpdet_res = 0; |
1043 | for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) |
1044 | info->hpdet_res[i] = 0; |
1045 | info->mic = false; |
1046 | info->hpdet_done = false; |
1047 | info->hpdet_retried = false; |
1048 | |
1049 | for (i = 0; i < info->num_micd_ranges; i++) |
1050 | input_report_key(info->input, |
1051 | info->micd_ranges[i].key, 0); |
1052 | input_sync(info->input); |
1053 | |
1054 | ret = extcon_update_state(info->edev, 0xffffffff, 0); |
1055 | if (ret != 0) |
1056 | dev_err(arizona->dev, "Removal report failed: %d\n", |
1057 | ret); |
1058 | |
1059 | regmap_update_bits(arizona->regmap, |
1060 | ARIZONA_JACK_DETECT_DEBOUNCE, |
1061 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, |
1062 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); |
1063 | } |
1064 | |
1065 | if (arizona->pdata.micd_timeout) |
1066 | info->micd_timeout = arizona->pdata.micd_timeout; |
1067 | else |
1068 | info->micd_timeout = DEFAULT_MICD_TIMEOUT; |
1069 | |
1070 | out: |
1071 | /* Clear trig_sts to make sure DCVDD is not forced up */ |
1072 | regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, |
1073 | ARIZONA_MICD_CLAMP_FALL_TRIG_STS | |
1074 | ARIZONA_MICD_CLAMP_RISE_TRIG_STS | |
1075 | ARIZONA_JD1_FALL_TRIG_STS | |
1076 | ARIZONA_JD1_RISE_TRIG_STS); |
1077 | |
1078 | mutex_unlock(&info->lock); |
1079 | |
1080 | pm_runtime_mark_last_busy(info->dev); |
1081 | pm_runtime_put_autosuspend(info->dev); |
1082 | |
1083 | return IRQ_HANDLED; |
1084 | } |
1085 | |
1086 | /* Map a level onto a slot in the register bank */ |
1087 | static void arizona_micd_set_level(struct arizona *arizona, int index, |
1088 | unsigned int level) |
1089 | { |
1090 | int reg; |
1091 | unsigned int mask; |
1092 | |
1093 | reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); |
1094 | |
1095 | if (!(index % 2)) { |
1096 | mask = 0x3f00; |
1097 | level <<= 8; |
1098 | } else { |
1099 | mask = 0x3f; |
1100 | } |
1101 | |
1102 | /* Program the level itself */ |
1103 | regmap_update_bits(arizona->regmap, reg, mask, level); |
1104 | } |
1105 | |
1106 | static int arizona_extcon_probe(struct platform_device *pdev) |
1107 | { |
1108 | struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); |
1109 | struct arizona_pdata *pdata = &arizona->pdata; |
1110 | struct arizona_extcon_info *info; |
1111 | unsigned int val; |
1112 | unsigned int clamp_mode; |
1113 | int jack_irq_fall, jack_irq_rise; |
1114 | int ret, mode, i, j; |
1115 | |
1116 | if (!arizona->dapm || !arizona->dapm->card) |
1117 | return -EPROBE_DEFER; |
1118 | |
1119 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
1120 | if (!info) |
1121 | return -ENOMEM; |
1122 | |
1123 | info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD"); |
1124 | if (IS_ERR(info->micvdd)) { |
1125 | ret = PTR_ERR(info->micvdd); |
1126 | dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); |
1127 | return ret; |
1128 | } |
1129 | |
1130 | mutex_init(&info->lock); |
1131 | info->arizona = arizona; |
1132 | info->dev = &pdev->dev; |
1133 | info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); |
1134 | INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
1135 | INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); |
1136 | INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); |
1137 | platform_set_drvdata(pdev, info); |
1138 | |
1139 | switch (arizona->type) { |
1140 | case WM5102: |
1141 | switch (arizona->rev) { |
1142 | case 0: |
1143 | info->micd_reva = true; |
1144 | break; |
1145 | default: |
1146 | info->micd_clamp = true; |
1147 | info->hpdet_ip = 1; |
1148 | break; |
1149 | } |
1150 | break; |
1151 | case WM5110: |
1152 | switch (arizona->rev) { |
1153 | case 0 ... 2: |
1154 | break; |
1155 | default: |
1156 | info->micd_clamp = true; |
1157 | info->hpdet_ip = 2; |
1158 | break; |
1159 | } |
1160 | break; |
1161 | default: |
1162 | break; |
1163 | } |
1164 | |
1165 | info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable); |
1166 | if (IS_ERR(info->edev)) { |
1167 | dev_err(&pdev->dev, "failed to allocate extcon device\n"); |
1168 | return -ENOMEM; |
1169 | } |
1170 | info->edev->name = "Headset Jack"; |
1171 | |
1172 | ret = devm_extcon_dev_register(&pdev->dev, info->edev); |
1173 | if (ret < 0) { |
1174 | dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
1175 | ret); |
1176 | return ret; |
1177 | } |
1178 | |
1179 | info->input = devm_input_allocate_device(&pdev->dev); |
1180 | if (!info->input) { |
1181 | dev_err(arizona->dev, "Can't allocate input dev\n"); |
1182 | ret = -ENOMEM; |
1183 | goto err_register; |
1184 | } |
1185 | |
1186 | info->input->name = "Headset"; |
1187 | info->input->phys = "arizona/extcon"; |
1188 | |
1189 | if (pdata->num_micd_configs) { |
1190 | info->micd_modes = pdata->micd_configs; |
1191 | info->micd_num_modes = pdata->num_micd_configs; |
1192 | } else { |
1193 | info->micd_modes = micd_default_modes; |
1194 | info->micd_num_modes = ARRAY_SIZE(micd_default_modes); |
1195 | } |
1196 | |
1197 | if (arizona->pdata.micd_pol_gpio > 0) { |
1198 | if (info->micd_modes[0].gpio) |
1199 | mode = GPIOF_OUT_INIT_HIGH; |
1200 | else |
1201 | mode = GPIOF_OUT_INIT_LOW; |
1202 | |
1203 | ret = devm_gpio_request_one(&pdev->dev, |
1204 | arizona->pdata.micd_pol_gpio, |
1205 | mode, |
1206 | "MICD polarity"); |
1207 | if (ret != 0) { |
1208 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
1209 | arizona->pdata.micd_pol_gpio, ret); |
1210 | goto err_register; |
1211 | } |
1212 | } |
1213 | |
1214 | if (arizona->pdata.hpdet_id_gpio > 0) { |
1215 | ret = devm_gpio_request_one(&pdev->dev, |
1216 | arizona->pdata.hpdet_id_gpio, |
1217 | GPIOF_OUT_INIT_LOW, |
1218 | "HPDET"); |
1219 | if (ret != 0) { |
1220 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", |
1221 | arizona->pdata.hpdet_id_gpio, ret); |
1222 | goto err_register; |
1223 | } |
1224 | } |
1225 | |
1226 | if (arizona->pdata.micd_bias_start_time) |
1227 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1228 | ARIZONA_MICD_BIAS_STARTTIME_MASK, |
1229 | arizona->pdata.micd_bias_start_time |
1230 | << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); |
1231 | |
1232 | if (arizona->pdata.micd_rate) |
1233 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1234 | ARIZONA_MICD_RATE_MASK, |
1235 | arizona->pdata.micd_rate |
1236 | << ARIZONA_MICD_RATE_SHIFT); |
1237 | |
1238 | if (arizona->pdata.micd_dbtime) |
1239 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
1240 | ARIZONA_MICD_DBTIME_MASK, |
1241 | arizona->pdata.micd_dbtime |
1242 | << ARIZONA_MICD_DBTIME_SHIFT); |
1243 | |
1244 | BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40); |
1245 | |
1246 | if (arizona->pdata.num_micd_ranges) { |
1247 | info->micd_ranges = pdata->micd_ranges; |
1248 | info->num_micd_ranges = pdata->num_micd_ranges; |
1249 | } else { |
1250 | info->micd_ranges = micd_default_ranges; |
1251 | info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); |
1252 | } |
1253 | |
1254 | if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { |
1255 | dev_err(arizona->dev, "Too many MICD ranges: %d\n", |
1256 | arizona->pdata.num_micd_ranges); |
1257 | } |
1258 | |
1259 | if (info->num_micd_ranges > 1) { |
1260 | for (i = 1; i < info->num_micd_ranges; i++) { |
1261 | if (info->micd_ranges[i - 1].max > |
1262 | info->micd_ranges[i].max) { |
1263 | dev_err(arizona->dev, |
1264 | "MICD ranges must be sorted\n"); |
1265 | ret = -EINVAL; |
1266 | goto err_input; |
1267 | } |
1268 | } |
1269 | } |
1270 | |
1271 | /* Disable all buttons by default */ |
1272 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, |
1273 | ARIZONA_MICD_LVL_SEL_MASK, 0x81); |
1274 | |
1275 | /* Set up all the buttons the user specified */ |
1276 | for (i = 0; i < info->num_micd_ranges; i++) { |
1277 | for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++) |
1278 | if (arizona_micd_levels[j] >= info->micd_ranges[i].max) |
1279 | break; |
1280 | |
1281 | if (j == ARRAY_SIZE(arizona_micd_levels)) { |
1282 | dev_err(arizona->dev, "Unsupported MICD level %d\n", |
1283 | info->micd_ranges[i].max); |
1284 | ret = -EINVAL; |
1285 | goto err_input; |
1286 | } |
1287 | |
1288 | dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", |
1289 | arizona_micd_levels[j], i); |
1290 | |
1291 | arizona_micd_set_level(arizona, i, j); |
1292 | input_set_capability(info->input, EV_KEY, |
1293 | info->micd_ranges[i].key); |
1294 | |
1295 | /* Enable reporting of that range */ |
1296 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, |
1297 | 1 << i, 1 << i); |
1298 | } |
1299 | |
1300 | /* Set all the remaining keys to a maximum */ |
1301 | for (; i < ARIZONA_MAX_MICD_RANGE; i++) |
1302 | arizona_micd_set_level(arizona, i, 0x3f); |
1303 | |
1304 | /* |
1305 | * If we have a clamp use it, activating in conjunction with |
1306 | * GPIO5 if that is connected for jack detect operation. |
1307 | */ |
1308 | if (info->micd_clamp) { |
1309 | if (arizona->pdata.jd_gpio5) { |
1310 | /* Put the GPIO into input mode with optional pull */ |
1311 | val = 0xc101; |
1312 | if (arizona->pdata.jd_gpio5_nopull) |
1313 | val &= ~ARIZONA_GPN_PU; |
1314 | |
1315 | regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
1316 | val); |
1317 | |
1318 | if (arizona->pdata.jd_invert) |
1319 | clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H; |
1320 | else |
1321 | clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H; |
1322 | } else { |
1323 | if (arizona->pdata.jd_invert) |
1324 | clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH; |
1325 | else |
1326 | clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL; |
1327 | } |
1328 | |
1329 | regmap_update_bits(arizona->regmap, |
1330 | ARIZONA_MICD_CLAMP_CONTROL, |
1331 | ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode); |
1332 | |
1333 | regmap_update_bits(arizona->regmap, |
1334 | ARIZONA_JACK_DETECT_DEBOUNCE, |
1335 | ARIZONA_MICD_CLAMP_DB, |
1336 | ARIZONA_MICD_CLAMP_DB); |
1337 | } |
1338 | |
1339 | arizona_extcon_set_mode(info, 0); |
1340 | |
1341 | pm_runtime_enable(&pdev->dev); |
1342 | pm_runtime_idle(&pdev->dev); |
1343 | pm_runtime_get_sync(&pdev->dev); |
1344 | |
1345 | if (arizona->pdata.jd_gpio5) { |
1346 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
1347 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
1348 | } else { |
1349 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
1350 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
1351 | } |
1352 | |
1353 | ret = arizona_request_irq(arizona, jack_irq_rise, |
1354 | "JACKDET rise", arizona_jackdet, info); |
1355 | if (ret != 0) { |
1356 | dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", |
1357 | ret); |
1358 | goto err_input; |
1359 | } |
1360 | |
1361 | ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
1362 | if (ret != 0) { |
1363 | dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", |
1364 | ret); |
1365 | goto err_rise; |
1366 | } |
1367 | |
1368 | ret = arizona_request_irq(arizona, jack_irq_fall, |
1369 | "JACKDET fall", arizona_jackdet, info); |
1370 | if (ret != 0) { |
1371 | dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); |
1372 | goto err_rise_wake; |
1373 | } |
1374 | |
1375 | ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
1376 | if (ret != 0) { |
1377 | dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", |
1378 | ret); |
1379 | goto err_fall; |
1380 | } |
1381 | |
1382 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, |
1383 | "MICDET", arizona_micdet, info); |
1384 | if (ret != 0) { |
1385 | dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); |
1386 | goto err_fall_wake; |
1387 | } |
1388 | |
1389 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
1390 | "HPDET", arizona_hpdet_irq, info); |
1391 | if (ret != 0) { |
1392 | dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); |
1393 | goto err_micdet; |
1394 | } |
1395 | |
1396 | arizona_clk32k_enable(arizona); |
1397 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, |
1398 | ARIZONA_JD1_DB, ARIZONA_JD1_DB); |
1399 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1400 | ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); |
1401 | |
1402 | ret = regulator_allow_bypass(info->micvdd, true); |
1403 | if (ret != 0) |
1404 | dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", |
1405 | ret); |
1406 | |
1407 | pm_runtime_put(&pdev->dev); |
1408 | |
1409 | ret = input_register_device(info->input); |
1410 | if (ret) { |
1411 | dev_err(&pdev->dev, "Can't register input device: %d\n", ret); |
1412 | goto err_hpdet; |
1413 | } |
1414 | |
1415 | return 0; |
1416 | |
1417 | err_hpdet: |
1418 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
1419 | err_micdet: |
1420 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
1421 | err_fall_wake: |
1422 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
1423 | err_fall: |
1424 | arizona_free_irq(arizona, jack_irq_fall, info); |
1425 | err_rise_wake: |
1426 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
1427 | err_rise: |
1428 | arizona_free_irq(arizona, jack_irq_rise, info); |
1429 | err_input: |
1430 | err_register: |
1431 | pm_runtime_disable(&pdev->dev); |
1432 | return ret; |
1433 | } |
1434 | |
1435 | static int arizona_extcon_remove(struct platform_device *pdev) |
1436 | { |
1437 | struct arizona_extcon_info *info = platform_get_drvdata(pdev); |
1438 | struct arizona *arizona = info->arizona; |
1439 | int jack_irq_rise, jack_irq_fall; |
1440 | |
1441 | pm_runtime_disable(&pdev->dev); |
1442 | |
1443 | regmap_update_bits(arizona->regmap, |
1444 | ARIZONA_MICD_CLAMP_CONTROL, |
1445 | ARIZONA_MICD_CLAMP_MODE_MASK, 0); |
1446 | |
1447 | if (arizona->pdata.jd_gpio5) { |
1448 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; |
1449 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; |
1450 | } else { |
1451 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; |
1452 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; |
1453 | } |
1454 | |
1455 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
1456 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
1457 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); |
1458 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
1459 | arizona_free_irq(arizona, jack_irq_rise, info); |
1460 | arizona_free_irq(arizona, jack_irq_fall, info); |
1461 | cancel_delayed_work_sync(&info->hpdet_work); |
1462 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1463 | ARIZONA_JD1_ENA, 0); |
1464 | arizona_clk32k_disable(arizona); |
1465 | |
1466 | return 0; |
1467 | } |
1468 | |
1469 | static struct platform_driver arizona_extcon_driver = { |
1470 | .driver = { |
1471 | .name = "arizona-extcon", |
1472 | .owner = THIS_MODULE, |
1473 | }, |
1474 | .probe = arizona_extcon_probe, |
1475 | .remove = arizona_extcon_remove, |
1476 | }; |
1477 | |
1478 | module_platform_driver(arizona_extcon_driver); |
1479 | |
1480 | MODULE_DESCRIPTION("Arizona Extcon driver"); |
1481 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
1482 | MODULE_LICENSE("GPL"); |
1483 | MODULE_ALIAS("platform:extcon-arizona"); |
1484 |
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javiroman/ks7010
jz-2.6.34
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Tags:
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