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f2c32a88 MB |
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> | |
34efe4dc | 24 | #include <linux/input.h> |
f2c32a88 MB |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/regulator/consumer.h> | |
28 | #include <linux/extcon.h> | |
29 | ||
bbbd46e3 MB |
30 | #include <sound/soc.h> |
31 | ||
f2c32a88 MB |
32 | #include <linux/mfd/arizona/core.h> |
33 | #include <linux/mfd/arizona/pdata.h> | |
34 | #include <linux/mfd/arizona/registers.h> | |
35 | ||
6fed4d86 | 36 | #define ARIZONA_MAX_MICD_RANGE 8 |
34efe4dc | 37 | |
4f340333 MB |
38 | #define ARIZONA_ACCDET_MODE_MIC 0 |
39 | #define ARIZONA_ACCDET_MODE_HPL 1 | |
40 | #define ARIZONA_ACCDET_MODE_HPR 2 | |
41 | ||
9dd5e53d MB |
42 | #define ARIZONA_HPDET_MAX 10000 |
43 | ||
2643fd64 | 44 | #define HPDET_DEBOUNCE 500 |
7abd4e2a | 45 | #define DEFAULT_MICD_TIMEOUT 2000 |
a3e2078d | 46 | |
f2c32a88 MB |
47 | struct arizona_extcon_info { |
48 | struct device *dev; | |
49 | struct arizona *arizona; | |
50 | struct mutex lock; | |
51 | struct regulator *micvdd; | |
34efe4dc | 52 | struct input_dev *input; |
f2c32a88 | 53 | |
a3e2078d MB |
54 | u16 last_jackdet; |
55 | ||
f2c32a88 MB |
56 | int micd_mode; |
57 | const struct arizona_micd_config *micd_modes; | |
58 | int micd_num_modes; | |
59 | ||
6fed4d86 MB |
60 | const struct arizona_micd_range *micd_ranges; |
61 | int num_micd_ranges; | |
62 | ||
7abd4e2a MB |
63 | int micd_timeout; |
64 | ||
f2c32a88 | 65 | bool micd_reva; |
dab63eb2 | 66 | bool micd_clamp; |
f2c32a88 | 67 | |
0e27bd31 | 68 | struct delayed_work hpdet_work; |
cd59e796 | 69 | struct delayed_work micd_detect_work; |
939c5671 | 70 | struct delayed_work micd_timeout_work; |
0e27bd31 | 71 | |
4f340333 | 72 | bool hpdet_active; |
bf14ee5a | 73 | bool hpdet_done; |
9dd5e53d | 74 | bool hpdet_retried; |
4f340333 | 75 | |
dd235eea | 76 | int num_hpdet_res; |
1eda6aa7 | 77 | unsigned int hpdet_res[3]; |
dd235eea | 78 | |
f2c32a88 MB |
79 | bool mic; |
80 | bool detecting; | |
81 | int jack_flips; | |
82 | ||
4f340333 MB |
83 | int hpdet_ip; |
84 | ||
f2c32a88 MB |
85 | struct extcon_dev edev; |
86 | }; | |
87 | ||
88 | static const struct arizona_micd_config micd_default_modes[] = { | |
41024243 CK |
89 | { ARIZONA_ACCDET_SRC, 1, 0 }, |
90 | { 0, 2, 1 }, | |
f2c32a88 MB |
91 | }; |
92 | ||
6fed4d86 MB |
93 | static const struct arizona_micd_range micd_default_ranges[] = { |
94 | { .max = 11, .key = BTN_0 }, | |
95 | { .max = 28, .key = BTN_1 }, | |
96 | { .max = 54, .key = BTN_2 }, | |
97 | { .max = 100, .key = BTN_3 }, | |
98 | { .max = 186, .key = BTN_4 }, | |
99 | { .max = 430, .key = BTN_5 }, | |
100 | }; | |
101 | ||
102 | static const int arizona_micd_levels[] = { | |
103 | 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, | |
104 | 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, | |
105 | 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, | |
106 | 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, | |
107 | 1257, | |
34efe4dc MB |
108 | }; |
109 | ||
325c6423 MB |
110 | #define ARIZONA_CABLE_MECHANICAL 0 |
111 | #define ARIZONA_CABLE_MICROPHONE 1 | |
112 | #define ARIZONA_CABLE_HEADPHONE 2 | |
4f340333 | 113 | #define ARIZONA_CABLE_LINEOUT 3 |
f2c32a88 MB |
114 | |
115 | static const char *arizona_cable[] = { | |
325c6423 MB |
116 | "Mechanical", |
117 | "Microphone", | |
118 | "Headphone", | |
4f340333 | 119 | "Line-out", |
f2c32a88 MB |
120 | NULL, |
121 | }; | |
122 | ||
9dd5e53d MB |
123 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info); |
124 | ||
03409071 MB |
125 | static void arizona_extcon_do_magic(struct arizona_extcon_info *info, |
126 | unsigned int magic) | |
127 | { | |
128 | struct arizona *arizona = info->arizona; | |
03409071 MB |
129 | int ret; |
130 | ||
131 | mutex_lock(&arizona->dapm->card->dapm_mutex); | |
132 | ||
df8c3dbe | 133 | arizona->hpdet_magic = magic; |
03409071 | 134 | |
df8c3dbe MB |
135 | /* Keep the HP output stages disabled while doing the magic */ |
136 | if (magic) { | |
137 | ret = regmap_update_bits(arizona->regmap, | |
138 | ARIZONA_OUTPUT_ENABLES_1, | |
139 | ARIZONA_OUT1L_ENA | | |
140 | ARIZONA_OUT1R_ENA, 0); | |
03409071 | 141 | if (ret != 0) |
df8c3dbe MB |
142 | dev_warn(arizona->dev, |
143 | "Failed to disable headphone outputs: %d\n", | |
144 | ret); | |
145 | } | |
146 | ||
147 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, | |
148 | magic); | |
149 | if (ret != 0) | |
150 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
03409071 MB |
151 | ret); |
152 | ||
df8c3dbe MB |
153 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, |
154 | magic); | |
155 | if (ret != 0) | |
156 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
157 | ret); | |
158 | ||
159 | /* Restore the desired state while not doing the magic */ | |
160 | if (!magic) { | |
161 | ret = regmap_update_bits(arizona->regmap, | |
162 | ARIZONA_OUTPUT_ENABLES_1, | |
163 | ARIZONA_OUT1L_ENA | | |
164 | ARIZONA_OUT1R_ENA, arizona->hp_ena); | |
03409071 | 165 | if (ret != 0) |
df8c3dbe MB |
166 | dev_warn(arizona->dev, |
167 | "Failed to restore headphone outputs: %d\n", | |
03409071 MB |
168 | ret); |
169 | } | |
170 | ||
171 | mutex_unlock(&arizona->dapm->card->dapm_mutex); | |
172 | } | |
173 | ||
f2c32a88 MB |
174 | static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
175 | { | |
176 | struct arizona *arizona = info->arizona; | |
177 | ||
6fed4d86 | 178 | mode %= info->micd_num_modes; |
84eaa136 | 179 | |
cd74f7b3 MB |
180 | if (arizona->pdata.micd_pol_gpio > 0) |
181 | gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, | |
182 | info->micd_modes[mode].gpio); | |
f2c32a88 MB |
183 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
184 | ARIZONA_MICD_BIAS_SRC_MASK, | |
41024243 CK |
185 | info->micd_modes[mode].bias << |
186 | ARIZONA_MICD_BIAS_SRC_SHIFT); | |
f2c32a88 MB |
187 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
188 | ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); | |
189 | ||
190 | info->micd_mode = mode; | |
191 | ||
192 | dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); | |
193 | } | |
194 | ||
bbbd46e3 MB |
195 | static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
196 | { | |
41024243 | 197 | switch (info->micd_modes[0].bias) { |
bbbd46e3 MB |
198 | case 1: |
199 | return "MICBIAS1"; | |
200 | case 2: | |
201 | return "MICBIAS2"; | |
202 | case 3: | |
203 | return "MICBIAS3"; | |
204 | default: | |
205 | return "MICVDD"; | |
206 | } | |
207 | } | |
208 | ||
209 | static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) | |
210 | { | |
211 | struct arizona *arizona = info->arizona; | |
212 | const char *widget = arizona_extcon_get_micbias(info); | |
213 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
214 | int ret; | |
215 | ||
216 | mutex_lock(&dapm->card->dapm_mutex); | |
217 | ||
218 | ret = snd_soc_dapm_force_enable_pin(dapm, widget); | |
219 | if (ret != 0) | |
220 | dev_warn(arizona->dev, "Failed to enable %s: %d\n", | |
221 | widget, ret); | |
222 | ||
223 | mutex_unlock(&dapm->card->dapm_mutex); | |
224 | ||
225 | snd_soc_dapm_sync(dapm); | |
226 | ||
227 | if (!arizona->pdata.micd_force_micbias) { | |
228 | mutex_lock(&dapm->card->dapm_mutex); | |
229 | ||
230 | ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); | |
231 | if (ret != 0) | |
232 | dev_warn(arizona->dev, "Failed to disable %s: %d\n", | |
233 | widget, ret); | |
234 | ||
235 | mutex_unlock(&dapm->card->dapm_mutex); | |
236 | ||
237 | snd_soc_dapm_sync(dapm); | |
238 | } | |
239 | } | |
240 | ||
9b1270c7 MB |
241 | static void arizona_start_mic(struct arizona_extcon_info *info) |
242 | { | |
243 | struct arizona *arizona = info->arizona; | |
244 | bool change; | |
245 | int ret; | |
246 | ||
9b1270c7 MB |
247 | /* Microphone detection can't use idle mode */ |
248 | pm_runtime_get(info->dev); | |
249 | ||
bbbd46e3 MB |
250 | if (info->detecting) { |
251 | ret = regulator_allow_bypass(info->micvdd, false); | |
252 | if (ret != 0) { | |
253 | dev_err(arizona->dev, | |
254 | "Failed to regulate MICVDD: %d\n", | |
255 | ret); | |
256 | } | |
257 | } | |
258 | ||
9b1270c7 MB |
259 | ret = regulator_enable(info->micvdd); |
260 | if (ret != 0) { | |
261 | dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", | |
262 | ret); | |
263 | } | |
264 | ||
265 | if (info->micd_reva) { | |
266 | regmap_write(arizona->regmap, 0x80, 0x3); | |
267 | regmap_write(arizona->regmap, 0x294, 0); | |
268 | regmap_write(arizona->regmap, 0x80, 0x0); | |
269 | } | |
270 | ||
271 | regmap_update_bits(arizona->regmap, | |
272 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
273 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
274 | ||
bbbd46e3 MB |
275 | arizona_extcon_pulse_micbias(info); |
276 | ||
9b1270c7 MB |
277 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
278 | ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, | |
279 | &change); | |
280 | if (!change) { | |
281 | regulator_disable(info->micvdd); | |
282 | pm_runtime_put_autosuspend(info->dev); | |
283 | } | |
284 | } | |
285 | ||
286 | static void arizona_stop_mic(struct arizona_extcon_info *info) | |
287 | { | |
288 | struct arizona *arizona = info->arizona; | |
bbbd46e3 MB |
289 | const char *widget = arizona_extcon_get_micbias(info); |
290 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
9b1270c7 | 291 | bool change; |
bbbd46e3 | 292 | int ret; |
9b1270c7 MB |
293 | |
294 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
295 | ARIZONA_MICD_ENA, 0, | |
296 | &change); | |
297 | ||
bbbd46e3 MB |
298 | mutex_lock(&dapm->card->dapm_mutex); |
299 | ||
300 | ret = snd_soc_dapm_disable_pin(dapm, widget); | |
301 | if (ret != 0) | |
302 | dev_warn(arizona->dev, | |
303 | "Failed to disable %s: %d\n", | |
304 | widget, ret); | |
305 | ||
306 | mutex_unlock(&dapm->card->dapm_mutex); | |
307 | ||
308 | snd_soc_dapm_sync(dapm); | |
309 | ||
9b1270c7 MB |
310 | if (info->micd_reva) { |
311 | regmap_write(arizona->regmap, 0x80, 0x3); | |
312 | regmap_write(arizona->regmap, 0x294, 2); | |
313 | regmap_write(arizona->regmap, 0x80, 0x0); | |
314 | } | |
315 | ||
bbbd46e3 MB |
316 | ret = regulator_allow_bypass(info->micvdd, true); |
317 | if (ret != 0) { | |
318 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
319 | ret); | |
320 | } | |
321 | ||
9b1270c7 MB |
322 | if (change) { |
323 | regulator_disable(info->micvdd); | |
324 | pm_runtime_mark_last_busy(info->dev); | |
325 | pm_runtime_put_autosuspend(info->dev); | |
326 | } | |
327 | } | |
328 | ||
4f340333 MB |
329 | static struct { |
330 | unsigned int factor_a; | |
331 | unsigned int factor_b; | |
332 | } arizona_hpdet_b_ranges[] = { | |
333 | { 5528, 362464 }, | |
334 | { 11084, 6186851 }, | |
335 | { 11065, 65460395 }, | |
336 | }; | |
337 | ||
338 | static struct { | |
339 | int min; | |
340 | int max; | |
341 | } arizona_hpdet_c_ranges[] = { | |
342 | { 0, 30 }, | |
343 | { 8, 100 }, | |
344 | { 100, 1000 }, | |
345 | { 1000, 10000 }, | |
346 | }; | |
347 | ||
348 | static int arizona_hpdet_read(struct arizona_extcon_info *info) | |
349 | { | |
350 | struct arizona *arizona = info->arizona; | |
351 | unsigned int val, range; | |
352 | int ret; | |
353 | ||
354 | ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); | |
355 | if (ret != 0) { | |
356 | dev_err(arizona->dev, "Failed to read HPDET status: %d\n", | |
357 | ret); | |
358 | return ret; | |
359 | } | |
360 | ||
361 | switch (info->hpdet_ip) { | |
362 | case 0: | |
363 | if (!(val & ARIZONA_HP_DONE)) { | |
364 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
365 | val); | |
e6dd8cf2 | 366 | return -EAGAIN; |
4f340333 MB |
367 | } |
368 | ||
369 | val &= ARIZONA_HP_LVL_MASK; | |
370 | break; | |
371 | ||
372 | case 1: | |
373 | if (!(val & ARIZONA_HP_DONE_B)) { | |
374 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
375 | val); | |
e6dd8cf2 | 376 | return -EAGAIN; |
4f340333 MB |
377 | } |
378 | ||
379 | ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); | |
380 | if (ret != 0) { | |
381 | dev_err(arizona->dev, "Failed to read HP value: %d\n", | |
382 | ret); | |
e6dd8cf2 | 383 | return -EAGAIN; |
4f340333 MB |
384 | } |
385 | ||
386 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
387 | &range); | |
388 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) | |
389 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; | |
390 | ||
391 | if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && | |
4ba1a9ff | 392 | (val < 100 || val >= 0x3fb)) { |
4f340333 MB |
393 | range++; |
394 | dev_dbg(arizona->dev, "Moving to HPDET range %d\n", | |
395 | range); | |
396 | regmap_update_bits(arizona->regmap, | |
397 | ARIZONA_HEADPHONE_DETECT_1, | |
398 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
399 | range << | |
400 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
401 | return -EAGAIN; | |
402 | } | |
403 | ||
404 | /* If we go out of range report top of range */ | |
4ba1a9ff | 405 | if (val < 100 || val >= 0x3fb) { |
4f340333 | 406 | dev_dbg(arizona->dev, "Measurement out of range\n"); |
9dd5e53d | 407 | return ARIZONA_HPDET_MAX; |
4f340333 MB |
408 | } |
409 | ||
410 | dev_dbg(arizona->dev, "HPDET read %d in range %d\n", | |
411 | val, range); | |
412 | ||
413 | val = arizona_hpdet_b_ranges[range].factor_b | |
414 | / ((val * 100) - | |
415 | arizona_hpdet_b_ranges[range].factor_a); | |
416 | break; | |
417 | ||
418 | default: | |
419 | dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", | |
420 | info->hpdet_ip); | |
421 | case 2: | |
422 | if (!(val & ARIZONA_HP_DONE_B)) { | |
423 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
424 | val); | |
e6dd8cf2 | 425 | return -EAGAIN; |
4f340333 MB |
426 | } |
427 | ||
428 | val &= ARIZONA_HP_LVL_B_MASK; | |
429 | ||
430 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
431 | &range); | |
432 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) | |
433 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; | |
434 | ||
435 | /* Skip up or down a range? */ | |
436 | if (range && (val < arizona_hpdet_c_ranges[range].min)) { | |
437 | range--; | |
438 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", | |
439 | arizona_hpdet_c_ranges[range].min, | |
440 | arizona_hpdet_c_ranges[range].max); | |
441 | regmap_update_bits(arizona->regmap, | |
442 | ARIZONA_HEADPHONE_DETECT_1, | |
443 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
444 | range << | |
445 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
446 | return -EAGAIN; | |
447 | } | |
448 | ||
449 | if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && | |
450 | (val >= arizona_hpdet_c_ranges[range].max)) { | |
451 | range++; | |
452 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", | |
453 | arizona_hpdet_c_ranges[range].min, | |
454 | arizona_hpdet_c_ranges[range].max); | |
455 | regmap_update_bits(arizona->regmap, | |
456 | ARIZONA_HEADPHONE_DETECT_1, | |
457 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
458 | range << | |
459 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
460 | return -EAGAIN; | |
461 | } | |
462 | } | |
463 | ||
464 | dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); | |
465 | return val; | |
466 | } | |
467 | ||
9c2ba270 MB |
468 | static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, |
469 | bool *mic) | |
dd235eea MB |
470 | { |
471 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 472 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
dd235eea MB |
473 | |
474 | /* | |
475 | * If we're using HPDET for accessory identification we need | |
476 | * to take multiple measurements, step through them in sequence. | |
477 | */ | |
478 | if (arizona->pdata.hpdet_acc_id) { | |
479 | info->hpdet_res[info->num_hpdet_res++] = *reading; | |
1eda6aa7 MB |
480 | |
481 | /* Only check the mic directly if we didn't already ID it */ | |
9c2ba270 | 482 | if (id_gpio && info->num_hpdet_res == 1) { |
1eda6aa7 MB |
483 | dev_dbg(arizona->dev, "Measuring mic\n"); |
484 | ||
485 | regmap_update_bits(arizona->regmap, | |
486 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
487 | ARIZONA_ACCDET_MODE_MASK | | |
488 | ARIZONA_ACCDET_SRC, | |
489 | ARIZONA_ACCDET_MODE_HPR | | |
490 | info->micd_modes[0].src); | |
491 | ||
492 | gpio_set_value_cansleep(id_gpio, 1); | |
493 | ||
dd235eea MB |
494 | regmap_update_bits(arizona->regmap, |
495 | ARIZONA_HEADPHONE_DETECT_1, | |
496 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
497 | return -EAGAIN; | |
498 | } | |
499 | ||
500 | /* OK, got both. Now, compare... */ | |
9c2ba270 MB |
501 | dev_dbg(arizona->dev, "HPDET measured %d %d\n", |
502 | info->hpdet_res[0], info->hpdet_res[1]); | |
c37b387f MB |
503 | |
504 | /* Take the headphone impedance for the main report */ | |
505 | *reading = info->hpdet_res[0]; | |
506 | ||
9dd5e53d MB |
507 | /* Sometimes we get false readings due to slow insert */ |
508 | if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) { | |
509 | dev_dbg(arizona->dev, "Retrying high impedance\n"); | |
510 | info->num_hpdet_res = 0; | |
511 | info->hpdet_retried = true; | |
512 | arizona_start_hpdet_acc_id(info); | |
513 | pm_runtime_put(info->dev); | |
514 | return -EAGAIN; | |
515 | } | |
516 | ||
1eda6aa7 | 517 | /* |
d97abdde | 518 | * If we measure the mic as high impedance |
1eda6aa7 | 519 | */ |
9c2ba270 | 520 | if (!id_gpio || info->hpdet_res[1] > 50) { |
dd235eea | 521 | dev_dbg(arizona->dev, "Detected mic\n"); |
9c2ba270 | 522 | *mic = true; |
bf14ee5a | 523 | info->detecting = true; |
dd235eea MB |
524 | } else { |
525 | dev_dbg(arizona->dev, "Detected headphone\n"); | |
526 | } | |
527 | ||
528 | /* Make sure everything is reset back to the real polarity */ | |
529 | regmap_update_bits(arizona->regmap, | |
530 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
531 | ARIZONA_ACCDET_SRC, | |
532 | info->micd_modes[0].src); | |
533 | } | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
4f340333 MB |
538 | static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
539 | { | |
540 | struct arizona_extcon_info *info = data; | |
541 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 542 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
4f340333 | 543 | int report = ARIZONA_CABLE_HEADPHONE; |
dd235eea | 544 | int ret, reading; |
9c2ba270 | 545 | bool mic = false; |
4f340333 MB |
546 | |
547 | mutex_lock(&info->lock); | |
548 | ||
549 | /* If we got a spurious IRQ for some reason then ignore it */ | |
550 | if (!info->hpdet_active) { | |
551 | dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); | |
552 | mutex_unlock(&info->lock); | |
553 | return IRQ_NONE; | |
554 | } | |
555 | ||
556 | /* If the cable was removed while measuring ignore the result */ | |
557 | ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL); | |
558 | if (ret < 0) { | |
559 | dev_err(arizona->dev, "Failed to check cable state: %d\n", | |
560 | ret); | |
561 | goto out; | |
562 | } else if (!ret) { | |
563 | dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); | |
564 | goto done; | |
565 | } | |
566 | ||
567 | ret = arizona_hpdet_read(info); | |
d6675667 | 568 | if (ret == -EAGAIN) |
4f340333 | 569 | goto out; |
d6675667 | 570 | else if (ret < 0) |
4f340333 | 571 | goto done; |
dd235eea | 572 | reading = ret; |
4f340333 MB |
573 | |
574 | /* Reset back to starting range */ | |
575 | regmap_update_bits(arizona->regmap, | |
576 | ARIZONA_HEADPHONE_DETECT_1, | |
dd235eea MB |
577 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
578 | 0); | |
579 | ||
9c2ba270 | 580 | ret = arizona_hpdet_do_id(info, &reading, &mic); |
d6675667 | 581 | if (ret == -EAGAIN) |
dd235eea | 582 | goto out; |
d6675667 | 583 | else if (ret < 0) |
dd235eea | 584 | goto done; |
4f340333 MB |
585 | |
586 | /* Report high impedence cables as line outputs */ | |
dd235eea | 587 | if (reading >= 5000) |
4f340333 MB |
588 | report = ARIZONA_CABLE_LINEOUT; |
589 | else | |
590 | report = ARIZONA_CABLE_HEADPHONE; | |
591 | ||
592 | ret = extcon_set_cable_state_(&info->edev, report, true); | |
593 | if (ret != 0) | |
594 | dev_err(arizona->dev, "Failed to report HP/line: %d\n", | |
595 | ret); | |
596 | ||
03409071 | 597 | arizona_extcon_do_magic(info, 0); |
4f340333 MB |
598 | |
599 | done: | |
1eda6aa7 MB |
600 | if (id_gpio) |
601 | gpio_set_value_cansleep(id_gpio, 0); | |
4f340333 MB |
602 | |
603 | /* Revert back to MICDET mode */ | |
604 | regmap_update_bits(arizona->regmap, | |
605 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
606 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
607 | ||
608 | /* If we have a mic then reenable MICDET */ | |
9c2ba270 | 609 | if (mic || info->mic) |
4f340333 MB |
610 | arizona_start_mic(info); |
611 | ||
612 | if (info->hpdet_active) { | |
613 | pm_runtime_put_autosuspend(info->dev); | |
614 | info->hpdet_active = false; | |
615 | } | |
616 | ||
bf14ee5a MB |
617 | info->hpdet_done = true; |
618 | ||
4f340333 MB |
619 | out: |
620 | mutex_unlock(&info->lock); | |
621 | ||
622 | return IRQ_HANDLED; | |
623 | } | |
624 | ||
625 | static void arizona_identify_headphone(struct arizona_extcon_info *info) | |
626 | { | |
627 | struct arizona *arizona = info->arizona; | |
628 | int ret; | |
629 | ||
bf14ee5a MB |
630 | if (info->hpdet_done) |
631 | return; | |
632 | ||
4f340333 MB |
633 | dev_dbg(arizona->dev, "Starting HPDET\n"); |
634 | ||
635 | /* Make sure we keep the device enabled during the measurement */ | |
636 | pm_runtime_get(info->dev); | |
637 | ||
638 | info->hpdet_active = true; | |
639 | ||
640 | if (info->mic) | |
641 | arizona_stop_mic(info); | |
642 | ||
03409071 | 643 | arizona_extcon_do_magic(info, 0x4000); |
4f340333 MB |
644 | |
645 | ret = regmap_update_bits(arizona->regmap, | |
646 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
647 | ARIZONA_ACCDET_MODE_MASK, | |
648 | ARIZONA_ACCDET_MODE_HPL); | |
649 | if (ret != 0) { | |
650 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
651 | goto err; | |
652 | } | |
653 | ||
654 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
655 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
656 | if (ret != 0) { | |
657 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", | |
658 | ret); | |
659 | goto err; | |
660 | } | |
661 | ||
662 | return; | |
663 | ||
664 | err: | |
665 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
666 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
667 | ||
668 | /* Just report headphone */ | |
669 | ret = extcon_update_state(&info->edev, | |
670 | 1 << ARIZONA_CABLE_HEADPHONE, | |
671 | 1 << ARIZONA_CABLE_HEADPHONE); | |
672 | if (ret != 0) | |
673 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
674 | ||
675 | if (info->mic) | |
676 | arizona_start_mic(info); | |
677 | ||
678 | info->hpdet_active = false; | |
679 | } | |
dd235eea MB |
680 | |
681 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) | |
682 | { | |
683 | struct arizona *arizona = info->arizona; | |
9c2ba270 MB |
684 | int hp_reading = 32; |
685 | bool mic; | |
dd235eea MB |
686 | int ret; |
687 | ||
688 | dev_dbg(arizona->dev, "Starting identification via HPDET\n"); | |
689 | ||
690 | /* Make sure we keep the device enabled during the measurement */ | |
0e27bd31 | 691 | pm_runtime_get_sync(info->dev); |
dd235eea MB |
692 | |
693 | info->hpdet_active = true; | |
694 | ||
03409071 | 695 | arizona_extcon_do_magic(info, 0x4000); |
dd235eea MB |
696 | |
697 | ret = regmap_update_bits(arizona->regmap, | |
698 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
699 | ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, | |
700 | info->micd_modes[0].src | | |
701 | ARIZONA_ACCDET_MODE_HPL); | |
702 | if (ret != 0) { | |
703 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
704 | goto err; | |
705 | } | |
706 | ||
9c2ba270 MB |
707 | if (arizona->pdata.hpdet_acc_id_line) { |
708 | ret = regmap_update_bits(arizona->regmap, | |
709 | ARIZONA_HEADPHONE_DETECT_1, | |
710 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
711 | if (ret != 0) { | |
712 | dev_err(arizona->dev, | |
713 | "Can't start HPDETL measurement: %d\n", | |
714 | ret); | |
715 | goto err; | |
716 | } | |
717 | } else { | |
718 | arizona_hpdet_do_id(info, &hp_reading, &mic); | |
4f340333 MB |
719 | } |
720 | ||
dd235eea MB |
721 | return; |
722 | ||
723 | err: | |
724 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
725 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
726 | ||
727 | /* Just report headphone */ | |
728 | ret = extcon_update_state(&info->edev, | |
729 | 1 << ARIZONA_CABLE_HEADPHONE, | |
730 | 1 << ARIZONA_CABLE_HEADPHONE); | |
731 | if (ret != 0) | |
732 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
733 | ||
4f340333 MB |
734 | info->hpdet_active = false; |
735 | } | |
736 | ||
939c5671 MB |
737 | static void arizona_micd_timeout_work(struct work_struct *work) |
738 | { | |
739 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
740 | struct arizona_extcon_info, |
741 | micd_timeout_work.work); | |
939c5671 MB |
742 | |
743 | mutex_lock(&info->lock); | |
744 | ||
745 | dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n"); | |
746 | arizona_identify_headphone(info); | |
747 | ||
748 | info->detecting = false; | |
749 | ||
750 | arizona_stop_mic(info); | |
751 | ||
752 | mutex_unlock(&info->lock); | |
753 | } | |
754 | ||
cd59e796 | 755 | static void arizona_micd_detect(struct work_struct *work) |
f2c32a88 | 756 | { |
cd59e796 | 757 | struct arizona_extcon_info *info = container_of(work, |
c2275d2f CC |
758 | struct arizona_extcon_info, |
759 | micd_detect_work.work); | |
f2c32a88 | 760 | struct arizona *arizona = info->arizona; |
e2c0f476 | 761 | unsigned int val = 0, lvl; |
6fed4d86 | 762 | int ret, i, key; |
f2c32a88 | 763 | |
939c5671 MB |
764 | cancel_delayed_work_sync(&info->micd_timeout_work); |
765 | ||
f2c32a88 MB |
766 | mutex_lock(&info->lock); |
767 | ||
e2c0f476 CK |
768 | for (i = 0; i < 10 && !(val & 0x7fc); i++) { |
769 | ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); | |
770 | if (ret != 0) { | |
c2275d2f CC |
771 | dev_err(arizona->dev, |
772 | "Failed to read MICDET: %d\n", ret); | |
e2c0f476 | 773 | mutex_unlock(&info->lock); |
cd59e796 | 774 | return; |
e2c0f476 CK |
775 | } |
776 | ||
777 | dev_dbg(arizona->dev, "MICDET: %x\n", val); | |
f2c32a88 | 778 | |
e2c0f476 | 779 | if (!(val & ARIZONA_MICD_VALID)) { |
c2275d2f CC |
780 | dev_warn(arizona->dev, |
781 | "Microphone detection state invalid\n"); | |
e2c0f476 | 782 | mutex_unlock(&info->lock); |
cd59e796 | 783 | return; |
e2c0f476 CK |
784 | } |
785 | } | |
f2c32a88 | 786 | |
e2c0f476 CK |
787 | if (i == 10 && !(val & 0x7fc)) { |
788 | dev_err(arizona->dev, "Failed to get valid MICDET value\n"); | |
f2c32a88 | 789 | mutex_unlock(&info->lock); |
cd59e796 | 790 | return; |
f2c32a88 MB |
791 | } |
792 | ||
793 | /* Due to jack detect this should never happen */ | |
794 | if (!(val & ARIZONA_MICD_STS)) { | |
795 | dev_warn(arizona->dev, "Detected open circuit\n"); | |
796 | info->detecting = false; | |
797 | goto handled; | |
798 | } | |
799 | ||
800 | /* If we got a high impedence we should have a headset, report it. */ | |
801 | if (info->detecting && (val & 0x400)) { | |
4f340333 MB |
802 | arizona_identify_headphone(info); |
803 | ||
325c6423 | 804 | ret = extcon_update_state(&info->edev, |
4f340333 MB |
805 | 1 << ARIZONA_CABLE_MICROPHONE, |
806 | 1 << ARIZONA_CABLE_MICROPHONE); | |
f2c32a88 MB |
807 | |
808 | if (ret != 0) | |
809 | dev_err(arizona->dev, "Headset report failed: %d\n", | |
810 | ret); | |
811 | ||
bbbd46e3 MB |
812 | /* Don't need to regulate for button detection */ |
813 | ret = regulator_allow_bypass(info->micvdd, false); | |
814 | if (ret != 0) { | |
815 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
816 | ret); | |
817 | } | |
818 | ||
f2c32a88 MB |
819 | info->mic = true; |
820 | info->detecting = false; | |
821 | goto handled; | |
822 | } | |
823 | ||
824 | /* If we detected a lower impedence during initial startup | |
825 | * then we probably have the wrong polarity, flip it. Don't | |
826 | * do this for the lowest impedences to speed up detection of | |
827 | * plain headphones. If both polarities report a low | |
828 | * impedence then give up and report headphones. | |
829 | */ | |
830 | if (info->detecting && (val & 0x3f8)) { | |
84eaa136 | 831 | if (info->jack_flips >= info->micd_num_modes * 10) { |
4f340333 MB |
832 | dev_dbg(arizona->dev, "Detected HP/line\n"); |
833 | arizona_identify_headphone(info); | |
834 | ||
f2c32a88 | 835 | info->detecting = false; |
9ef2224d | 836 | |
4f340333 | 837 | arizona_stop_mic(info); |
f2c32a88 MB |
838 | } else { |
839 | info->micd_mode++; | |
840 | if (info->micd_mode == info->micd_num_modes) | |
841 | info->micd_mode = 0; | |
842 | arizona_extcon_set_mode(info, info->micd_mode); | |
843 | ||
844 | info->jack_flips++; | |
845 | } | |
846 | ||
847 | goto handled; | |
848 | } | |
849 | ||
850 | /* | |
851 | * If we're still detecting and we detect a short then we've | |
34efe4dc | 852 | * got a headphone. Otherwise it's a button press. |
f2c32a88 MB |
853 | */ |
854 | if (val & 0x3fc) { | |
855 | if (info->mic) { | |
856 | dev_dbg(arizona->dev, "Mic button detected\n"); | |
857 | ||
34efe4dc MB |
858 | lvl = val & ARIZONA_MICD_LVL_MASK; |
859 | lvl >>= ARIZONA_MICD_LVL_SHIFT; | |
860 | ||
41a57850 MB |
861 | for (i = 0; i < info->num_micd_ranges; i++) |
862 | input_report_key(info->input, | |
863 | info->micd_ranges[i].key, 0); | |
864 | ||
6fed4d86 MB |
865 | WARN_ON(!lvl); |
866 | WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); | |
867 | if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { | |
868 | key = info->micd_ranges[ffs(lvl) - 1].key; | |
869 | input_report_key(info->input, key, 1); | |
870 | input_sync(info->input); | |
871 | } | |
34efe4dc | 872 | |
f2c32a88 MB |
873 | } else if (info->detecting) { |
874 | dev_dbg(arizona->dev, "Headphone detected\n"); | |
875 | info->detecting = false; | |
876 | arizona_stop_mic(info); | |
877 | ||
4f340333 | 878 | arizona_identify_headphone(info); |
f2c32a88 MB |
879 | } else { |
880 | dev_warn(arizona->dev, "Button with no mic: %x\n", | |
881 | val); | |
882 | } | |
883 | } else { | |
884 | dev_dbg(arizona->dev, "Mic button released\n"); | |
6fed4d86 | 885 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 886 | input_report_key(info->input, |
6fed4d86 | 887 | info->micd_ranges[i].key, 0); |
34efe4dc | 888 | input_sync(info->input); |
bbbd46e3 | 889 | arizona_extcon_pulse_micbias(info); |
f2c32a88 MB |
890 | } |
891 | ||
892 | handled: | |
939c5671 | 893 | if (info->detecting) |
df9a5ab4 MB |
894 | queue_delayed_work(system_power_efficient_wq, |
895 | &info->micd_timeout_work, | |
896 | msecs_to_jiffies(info->micd_timeout)); | |
939c5671 | 897 | |
f2c32a88 MB |
898 | pm_runtime_mark_last_busy(info->dev); |
899 | mutex_unlock(&info->lock); | |
cd59e796 MB |
900 | } |
901 | ||
902 | static irqreturn_t arizona_micdet(int irq, void *data) | |
903 | { | |
904 | struct arizona_extcon_info *info = data; | |
905 | struct arizona *arizona = info->arizona; | |
906 | int debounce = arizona->pdata.micd_detect_debounce; | |
907 | ||
908 | cancel_delayed_work_sync(&info->micd_detect_work); | |
909 | cancel_delayed_work_sync(&info->micd_timeout_work); | |
910 | ||
911 | mutex_lock(&info->lock); | |
912 | if (!info->detecting) | |
913 | debounce = 0; | |
914 | mutex_unlock(&info->lock); | |
915 | ||
916 | if (debounce) | |
df9a5ab4 MB |
917 | queue_delayed_work(system_power_efficient_wq, |
918 | &info->micd_detect_work, | |
919 | msecs_to_jiffies(debounce)); | |
cd59e796 MB |
920 | else |
921 | arizona_micd_detect(&info->micd_detect_work.work); | |
f2c32a88 MB |
922 | |
923 | return IRQ_HANDLED; | |
924 | } | |
925 | ||
0e27bd31 MB |
926 | static void arizona_hpdet_work(struct work_struct *work) |
927 | { | |
928 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
929 | struct arizona_extcon_info, |
930 | hpdet_work.work); | |
0e27bd31 MB |
931 | |
932 | mutex_lock(&info->lock); | |
933 | arizona_start_hpdet_acc_id(info); | |
934 | mutex_unlock(&info->lock); | |
935 | } | |
936 | ||
f2c32a88 MB |
937 | static irqreturn_t arizona_jackdet(int irq, void *data) |
938 | { | |
939 | struct arizona_extcon_info *info = data; | |
940 | struct arizona *arizona = info->arizona; | |
92a49871 | 941 | unsigned int val, present, mask; |
939c5671 | 942 | bool cancelled_hp, cancelled_mic; |
34efe4dc | 943 | int ret, i; |
f2c32a88 | 944 | |
939c5671 MB |
945 | cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work); |
946 | cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work); | |
f2c32a88 | 947 | |
a3e2078d | 948 | pm_runtime_get_sync(info->dev); |
0e27bd31 | 949 | |
f2c32a88 MB |
950 | mutex_lock(&info->lock); |
951 | ||
92a49871 MB |
952 | if (arizona->pdata.jd_gpio5) { |
953 | mask = ARIZONA_MICD_CLAMP_STS; | |
954 | present = 0; | |
955 | } else { | |
956 | mask = ARIZONA_JD1_STS; | |
957 | present = ARIZONA_JD1_STS; | |
958 | } | |
959 | ||
f2c32a88 MB |
960 | ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
961 | if (ret != 0) { | |
962 | dev_err(arizona->dev, "Failed to read jackdet status: %d\n", | |
963 | ret); | |
964 | mutex_unlock(&info->lock); | |
965 | pm_runtime_put_autosuspend(info->dev); | |
966 | return IRQ_NONE; | |
967 | } | |
968 | ||
a3e2078d MB |
969 | val &= mask; |
970 | if (val == info->last_jackdet) { | |
971 | dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); | |
939c5671 | 972 | if (cancelled_hp) |
df9a5ab4 MB |
973 | queue_delayed_work(system_power_efficient_wq, |
974 | &info->hpdet_work, | |
975 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
a3e2078d | 976 | |
c2275d2f CC |
977 | if (cancelled_mic) { |
978 | int micd_timeout = info->micd_timeout; | |
979 | ||
df9a5ab4 MB |
980 | queue_delayed_work(system_power_efficient_wq, |
981 | &info->micd_timeout_work, | |
c2275d2f CC |
982 | msecs_to_jiffies(micd_timeout)); |
983 | } | |
939c5671 | 984 | |
a3e2078d MB |
985 | goto out; |
986 | } | |
987 | info->last_jackdet = val; | |
988 | ||
989 | if (info->last_jackdet == present) { | |
f2c32a88 | 990 | dev_dbg(arizona->dev, "Detected jack\n"); |
325c6423 MB |
991 | ret = extcon_set_cable_state_(&info->edev, |
992 | ARIZONA_CABLE_MECHANICAL, true); | |
f2c32a88 MB |
993 | |
994 | if (ret != 0) | |
995 | dev_err(arizona->dev, "Mechanical report failed: %d\n", | |
996 | ret); | |
997 | ||
dd235eea MB |
998 | if (!arizona->pdata.hpdet_acc_id) { |
999 | info->detecting = true; | |
1000 | info->mic = false; | |
1001 | info->jack_flips = 0; | |
1002 | ||
1003 | arizona_start_mic(info); | |
1004 | } else { | |
df9a5ab4 MB |
1005 | queue_delayed_work(system_power_efficient_wq, |
1006 | &info->hpdet_work, | |
1007 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
dd235eea | 1008 | } |
4e616877 MB |
1009 | |
1010 | regmap_update_bits(arizona->regmap, | |
1011 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1012 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); | |
f2c32a88 MB |
1013 | } else { |
1014 | dev_dbg(arizona->dev, "Detected jack removal\n"); | |
1015 | ||
1016 | arizona_stop_mic(info); | |
1017 | ||
dd235eea MB |
1018 | info->num_hpdet_res = 0; |
1019 | for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) | |
1020 | info->hpdet_res[i] = 0; | |
1021 | info->mic = false; | |
bf14ee5a | 1022 | info->hpdet_done = false; |
9dd5e53d | 1023 | info->hpdet_retried = false; |
92a49871 | 1024 | |
6fed4d86 | 1025 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 1026 | input_report_key(info->input, |
6fed4d86 | 1027 | info->micd_ranges[i].key, 0); |
34efe4dc MB |
1028 | input_sync(info->input); |
1029 | ||
f2c32a88 MB |
1030 | ret = extcon_update_state(&info->edev, 0xffffffff, 0); |
1031 | if (ret != 0) | |
1032 | dev_err(arizona->dev, "Removal report failed: %d\n", | |
1033 | ret); | |
4e616877 MB |
1034 | |
1035 | regmap_update_bits(arizona->regmap, | |
1036 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1037 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, | |
1038 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); | |
f2c32a88 MB |
1039 | } |
1040 | ||
7abd4e2a MB |
1041 | if (arizona->pdata.micd_timeout) |
1042 | info->micd_timeout = arizona->pdata.micd_timeout; | |
1043 | else | |
1044 | info->micd_timeout = DEFAULT_MICD_TIMEOUT; | |
1045 | ||
cb9005d7 | 1046 | out: |
5d9ab708 CK |
1047 | /* Clear trig_sts to make sure DCVDD is not forced up */ |
1048 | regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, | |
1049 | ARIZONA_MICD_CLAMP_FALL_TRIG_STS | | |
1050 | ARIZONA_MICD_CLAMP_RISE_TRIG_STS | | |
1051 | ARIZONA_JD1_FALL_TRIG_STS | | |
1052 | ARIZONA_JD1_RISE_TRIG_STS); | |
1053 | ||
f2c32a88 MB |
1054 | mutex_unlock(&info->lock); |
1055 | ||
1056 | pm_runtime_mark_last_busy(info->dev); | |
1057 | pm_runtime_put_autosuspend(info->dev); | |
1058 | ||
1059 | return IRQ_HANDLED; | |
1060 | } | |
1061 | ||
6fed4d86 MB |
1062 | /* Map a level onto a slot in the register bank */ |
1063 | static void arizona_micd_set_level(struct arizona *arizona, int index, | |
1064 | unsigned int level) | |
1065 | { | |
1066 | int reg; | |
1067 | unsigned int mask; | |
1068 | ||
1069 | reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); | |
1070 | ||
1071 | if (!(index % 2)) { | |
1072 | mask = 0x3f00; | |
1073 | level <<= 8; | |
1074 | } else { | |
1075 | mask = 0x3f; | |
1076 | } | |
1077 | ||
1078 | /* Program the level itself */ | |
1079 | regmap_update_bits(arizona->regmap, reg, mask, level); | |
1080 | } | |
1081 | ||
44f34fd4 | 1082 | static int arizona_extcon_probe(struct platform_device *pdev) |
f2c32a88 MB |
1083 | { |
1084 | struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); | |
1085 | struct arizona_pdata *pdata; | |
1086 | struct arizona_extcon_info *info; | |
e56a0a57 | 1087 | unsigned int val; |
92a49871 | 1088 | int jack_irq_fall, jack_irq_rise; |
6fed4d86 | 1089 | int ret, mode, i, j; |
f2c32a88 | 1090 | |
bbbd46e3 MB |
1091 | if (!arizona->dapm || !arizona->dapm->card) |
1092 | return -EPROBE_DEFER; | |
1093 | ||
f2c32a88 MB |
1094 | pdata = dev_get_platdata(arizona->dev); |
1095 | ||
1096 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); | |
1097 | if (!info) { | |
8e5f5018 | 1098 | dev_err(&pdev->dev, "Failed to allocate memory\n"); |
f2c32a88 MB |
1099 | ret = -ENOMEM; |
1100 | goto err; | |
1101 | } | |
1102 | ||
1103 | info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); | |
1104 | if (IS_ERR(info->micvdd)) { | |
1105 | ret = PTR_ERR(info->micvdd); | |
1106 | dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); | |
1107 | goto err; | |
1108 | } | |
1109 | ||
1110 | mutex_init(&info->lock); | |
1111 | info->arizona = arizona; | |
1112 | info->dev = &pdev->dev; | |
a3e2078d | 1113 | info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); |
0e27bd31 | 1114 | INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
cd59e796 | 1115 | INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); |
939c5671 | 1116 | INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); |
f2c32a88 MB |
1117 | platform_set_drvdata(pdev, info); |
1118 | ||
1119 | switch (arizona->type) { | |
1120 | case WM5102: | |
1121 | switch (arizona->rev) { | |
1122 | case 0: | |
1123 | info->micd_reva = true; | |
1124 | break; | |
1125 | default: | |
dab63eb2 | 1126 | info->micd_clamp = true; |
4f340333 | 1127 | info->hpdet_ip = 1; |
f2c32a88 MB |
1128 | break; |
1129 | } | |
1130 | break; | |
1131 | default: | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | info->edev.name = "Headset Jack"; | |
42d7d753 | 1136 | info->edev.dev.parent = arizona->dev; |
f2c32a88 | 1137 | info->edev.supported_cable = arizona_cable; |
f2c32a88 | 1138 | |
42d7d753 | 1139 | ret = extcon_dev_register(&info->edev); |
f2c32a88 | 1140 | if (ret < 0) { |
8e5f5018 | 1141 | dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
f2c32a88 MB |
1142 | ret); |
1143 | goto err; | |
1144 | } | |
1145 | ||
6fed4d86 MB |
1146 | info->input = devm_input_allocate_device(&pdev->dev); |
1147 | if (!info->input) { | |
1148 | dev_err(arizona->dev, "Can't allocate input dev\n"); | |
1149 | ret = -ENOMEM; | |
1150 | goto err_register; | |
1151 | } | |
1152 | ||
1153 | info->input->name = "Headset"; | |
1154 | info->input->phys = "arizona/extcon"; | |
1155 | info->input->dev.parent = &pdev->dev; | |
1156 | ||
f2c32a88 MB |
1157 | if (pdata->num_micd_configs) { |
1158 | info->micd_modes = pdata->micd_configs; | |
1159 | info->micd_num_modes = pdata->num_micd_configs; | |
1160 | } else { | |
1161 | info->micd_modes = micd_default_modes; | |
1162 | info->micd_num_modes = ARRAY_SIZE(micd_default_modes); | |
1163 | } | |
1164 | ||
1165 | if (arizona->pdata.micd_pol_gpio > 0) { | |
1166 | if (info->micd_modes[0].gpio) | |
1167 | mode = GPIOF_OUT_INIT_HIGH; | |
1168 | else | |
1169 | mode = GPIOF_OUT_INIT_LOW; | |
1170 | ||
1171 | ret = devm_gpio_request_one(&pdev->dev, | |
1172 | arizona->pdata.micd_pol_gpio, | |
1173 | mode, | |
1174 | "MICD polarity"); | |
1175 | if (ret != 0) { | |
1176 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1177 | arizona->pdata.micd_pol_gpio, ret); | |
1178 | goto err_register; | |
1179 | } | |
1180 | } | |
1181 | ||
1eda6aa7 MB |
1182 | if (arizona->pdata.hpdet_id_gpio > 0) { |
1183 | ret = devm_gpio_request_one(&pdev->dev, | |
1184 | arizona->pdata.hpdet_id_gpio, | |
1185 | GPIOF_OUT_INIT_LOW, | |
1186 | "HPDET"); | |
1187 | if (ret != 0) { | |
1188 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1189 | arizona->pdata.hpdet_id_gpio, ret); | |
1190 | goto err_register; | |
1191 | } | |
1192 | } | |
1193 | ||
b17e5462 MB |
1194 | if (arizona->pdata.micd_bias_start_time) |
1195 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1196 | ARIZONA_MICD_BIAS_STARTTIME_MASK, | |
1197 | arizona->pdata.micd_bias_start_time | |
1198 | << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); | |
1199 | ||
2e033db5 MB |
1200 | if (arizona->pdata.micd_rate) |
1201 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1202 | ARIZONA_MICD_RATE_MASK, | |
1203 | arizona->pdata.micd_rate | |
1204 | << ARIZONA_MICD_RATE_SHIFT); | |
1205 | ||
1206 | if (arizona->pdata.micd_dbtime) | |
1207 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1208 | ARIZONA_MICD_DBTIME_MASK, | |
1209 | arizona->pdata.micd_dbtime | |
1210 | << ARIZONA_MICD_DBTIME_SHIFT); | |
1211 | ||
6fed4d86 MB |
1212 | BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40); |
1213 | ||
1214 | if (arizona->pdata.num_micd_ranges) { | |
1215 | info->micd_ranges = pdata->micd_ranges; | |
1216 | info->num_micd_ranges = pdata->num_micd_ranges; | |
1217 | } else { | |
1218 | info->micd_ranges = micd_default_ranges; | |
1219 | info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); | |
1220 | } | |
1221 | ||
1222 | if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { | |
1223 | dev_err(arizona->dev, "Too many MICD ranges: %d\n", | |
1224 | arizona->pdata.num_micd_ranges); | |
1225 | } | |
1226 | ||
1227 | if (info->num_micd_ranges > 1) { | |
1228 | for (i = 1; i < info->num_micd_ranges; i++) { | |
1229 | if (info->micd_ranges[i - 1].max > | |
1230 | info->micd_ranges[i].max) { | |
1231 | dev_err(arizona->dev, | |
1232 | "MICD ranges must be sorted\n"); | |
1233 | ret = -EINVAL; | |
1234 | goto err_input; | |
1235 | } | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | /* Disable all buttons by default */ | |
1240 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1241 | ARIZONA_MICD_LVL_SEL_MASK, 0x81); | |
1242 | ||
1243 | /* Set up all the buttons the user specified */ | |
1244 | for (i = 0; i < info->num_micd_ranges; i++) { | |
1245 | for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++) | |
1246 | if (arizona_micd_levels[j] >= info->micd_ranges[i].max) | |
1247 | break; | |
1248 | ||
1249 | if (j == ARRAY_SIZE(arizona_micd_levels)) { | |
1250 | dev_err(arizona->dev, "Unsupported MICD level %d\n", | |
1251 | info->micd_ranges[i].max); | |
1252 | ret = -EINVAL; | |
1253 | goto err_input; | |
1254 | } | |
1255 | ||
1256 | dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", | |
1257 | arizona_micd_levels[j], i); | |
1258 | ||
1259 | arizona_micd_set_level(arizona, i, j); | |
1260 | input_set_capability(info->input, EV_KEY, | |
1261 | info->micd_ranges[i].key); | |
1262 | ||
1263 | /* Enable reporting of that range */ | |
1264 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1265 | 1 << i, 1 << i); | |
1266 | } | |
1267 | ||
1268 | /* Set all the remaining keys to a maximum */ | |
1269 | for (; i < ARIZONA_MAX_MICD_RANGE; i++) | |
1270 | arizona_micd_set_level(arizona, i, 0x3f); | |
1271 | ||
dab63eb2 | 1272 | /* |
92a49871 MB |
1273 | * If we have a clamp use it, activating in conjunction with |
1274 | * GPIO5 if that is connected for jack detect operation. | |
dab63eb2 MB |
1275 | */ |
1276 | if (info->micd_clamp) { | |
92a49871 | 1277 | if (arizona->pdata.jd_gpio5) { |
e56a0a57 MB |
1278 | /* Put the GPIO into input mode with optional pull */ |
1279 | val = 0xc101; | |
1280 | if (arizona->pdata.jd_gpio5_nopull) | |
1281 | val &= ~ARIZONA_GPN_PU; | |
1282 | ||
92a49871 | 1283 | regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
e56a0a57 | 1284 | val); |
92a49871 MB |
1285 | |
1286 | regmap_update_bits(arizona->regmap, | |
1287 | ARIZONA_MICD_CLAMP_CONTROL, | |
1288 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x9); | |
1289 | } else { | |
1290 | regmap_update_bits(arizona->regmap, | |
1291 | ARIZONA_MICD_CLAMP_CONTROL, | |
1292 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x4); | |
1293 | } | |
1294 | ||
dab63eb2 MB |
1295 | regmap_update_bits(arizona->regmap, |
1296 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1297 | ARIZONA_MICD_CLAMP_DB, | |
1298 | ARIZONA_MICD_CLAMP_DB); | |
1299 | } | |
1300 | ||
f2c32a88 MB |
1301 | arizona_extcon_set_mode(info, 0); |
1302 | ||
1303 | pm_runtime_enable(&pdev->dev); | |
1304 | pm_runtime_idle(&pdev->dev); | |
1305 | pm_runtime_get_sync(&pdev->dev); | |
1306 | ||
92a49871 MB |
1307 | if (arizona->pdata.jd_gpio5) { |
1308 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1309 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1310 | } else { | |
1311 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1312 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1313 | } | |
1314 | ||
1315 | ret = arizona_request_irq(arizona, jack_irq_rise, | |
f2c32a88 MB |
1316 | "JACKDET rise", arizona_jackdet, info); |
1317 | if (ret != 0) { | |
1318 | dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", | |
1319 | ret); | |
34efe4dc | 1320 | goto err_input; |
f2c32a88 MB |
1321 | } |
1322 | ||
92a49871 | 1323 | ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
f2c32a88 MB |
1324 | if (ret != 0) { |
1325 | dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", | |
1326 | ret); | |
1327 | goto err_rise; | |
1328 | } | |
1329 | ||
92a49871 | 1330 | ret = arizona_request_irq(arizona, jack_irq_fall, |
f2c32a88 MB |
1331 | "JACKDET fall", arizona_jackdet, info); |
1332 | if (ret != 0) { | |
1333 | dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); | |
1334 | goto err_rise_wake; | |
1335 | } | |
1336 | ||
92a49871 | 1337 | ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
f2c32a88 MB |
1338 | if (ret != 0) { |
1339 | dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", | |
1340 | ret); | |
1341 | goto err_fall; | |
1342 | } | |
1343 | ||
1344 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, | |
1345 | "MICDET", arizona_micdet, info); | |
1346 | if (ret != 0) { | |
1347 | dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); | |
1348 | goto err_fall_wake; | |
1349 | } | |
1350 | ||
4f340333 MB |
1351 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
1352 | "HPDET", arizona_hpdet_irq, info); | |
1353 | if (ret != 0) { | |
1354 | dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); | |
1355 | goto err_micdet; | |
1356 | } | |
1357 | ||
f2c32a88 MB |
1358 | arizona_clk32k_enable(arizona); |
1359 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, | |
1360 | ARIZONA_JD1_DB, ARIZONA_JD1_DB); | |
1361 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, | |
1362 | ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); | |
1363 | ||
b8575a11 MB |
1364 | ret = regulator_allow_bypass(info->micvdd, true); |
1365 | if (ret != 0) | |
1366 | dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", | |
1367 | ret); | |
1368 | ||
f2c32a88 MB |
1369 | pm_runtime_put(&pdev->dev); |
1370 | ||
34efe4dc MB |
1371 | ret = input_register_device(info->input); |
1372 | if (ret) { | |
1373 | dev_err(&pdev->dev, "Can't register input device: %d\n", ret); | |
4f340333 | 1374 | goto err_hpdet; |
34efe4dc MB |
1375 | } |
1376 | ||
f2c32a88 MB |
1377 | return 0; |
1378 | ||
4f340333 MB |
1379 | err_hpdet: |
1380 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
80732cc1 MB |
1381 | err_micdet: |
1382 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); | |
f2c32a88 | 1383 | err_fall_wake: |
92a49871 | 1384 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
f2c32a88 | 1385 | err_fall: |
92a49871 | 1386 | arizona_free_irq(arizona, jack_irq_fall, info); |
f2c32a88 | 1387 | err_rise_wake: |
92a49871 | 1388 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
f2c32a88 | 1389 | err_rise: |
92a49871 | 1390 | arizona_free_irq(arizona, jack_irq_rise, info); |
34efe4dc | 1391 | err_input: |
f2c32a88 MB |
1392 | err_register: |
1393 | pm_runtime_disable(&pdev->dev); | |
1394 | extcon_dev_unregister(&info->edev); | |
1395 | err: | |
1396 | return ret; | |
1397 | } | |
1398 | ||
93ed0327 | 1399 | static int arizona_extcon_remove(struct platform_device *pdev) |
f2c32a88 MB |
1400 | { |
1401 | struct arizona_extcon_info *info = platform_get_drvdata(pdev); | |
1402 | struct arizona *arizona = info->arizona; | |
92a49871 | 1403 | int jack_irq_rise, jack_irq_fall; |
f2c32a88 MB |
1404 | |
1405 | pm_runtime_disable(&pdev->dev); | |
1406 | ||
dab63eb2 MB |
1407 | regmap_update_bits(arizona->regmap, |
1408 | ARIZONA_MICD_CLAMP_CONTROL, | |
1409 | ARIZONA_MICD_CLAMP_MODE_MASK, 0); | |
1410 | ||
92a49871 MB |
1411 | if (arizona->pdata.jd_gpio5) { |
1412 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1413 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1414 | } else { | |
1415 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1416 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1417 | } | |
1418 | ||
1419 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); | |
1420 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); | |
1421 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
f2c32a88 | 1422 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
92a49871 MB |
1423 | arizona_free_irq(arizona, jack_irq_rise, info); |
1424 | arizona_free_irq(arizona, jack_irq_fall, info); | |
0e27bd31 | 1425 | cancel_delayed_work_sync(&info->hpdet_work); |
f2c32a88 MB |
1426 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1427 | ARIZONA_JD1_ENA, 0); | |
1428 | arizona_clk32k_disable(arizona); | |
1429 | extcon_dev_unregister(&info->edev); | |
1430 | ||
1431 | return 0; | |
1432 | } | |
1433 | ||
1434 | static struct platform_driver arizona_extcon_driver = { | |
1435 | .driver = { | |
1436 | .name = "arizona-extcon", | |
1437 | .owner = THIS_MODULE, | |
1438 | }, | |
1439 | .probe = arizona_extcon_probe, | |
5f7e2228 | 1440 | .remove = arizona_extcon_remove, |
f2c32a88 MB |
1441 | }; |
1442 | ||
1443 | module_platform_driver(arizona_extcon_driver); | |
1444 | ||
1445 | MODULE_DESCRIPTION("Arizona Extcon driver"); | |
1446 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
1447 | MODULE_LICENSE("GPL"); | |
1448 | MODULE_ALIAS("platform:extcon-arizona"); |