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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 | |
ffae24fe CK |
47 | #define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \ |
48 | ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \ | |
49 | ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \ | |
50 | ARIZONA_MICD_LVL_7) | |
51 | ||
52 | #define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7) | |
53 | ||
54 | #define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8) | |
55 | ||
f2c32a88 MB |
56 | struct arizona_extcon_info { |
57 | struct device *dev; | |
58 | struct arizona *arizona; | |
59 | struct mutex lock; | |
60 | struct regulator *micvdd; | |
34efe4dc | 61 | struct input_dev *input; |
f2c32a88 | 62 | |
a3e2078d MB |
63 | u16 last_jackdet; |
64 | ||
f2c32a88 MB |
65 | int micd_mode; |
66 | const struct arizona_micd_config *micd_modes; | |
67 | int micd_num_modes; | |
68 | ||
6fed4d86 MB |
69 | const struct arizona_micd_range *micd_ranges; |
70 | int num_micd_ranges; | |
71 | ||
7abd4e2a MB |
72 | int micd_timeout; |
73 | ||
f2c32a88 | 74 | bool micd_reva; |
dab63eb2 | 75 | bool micd_clamp; |
f2c32a88 | 76 | |
0e27bd31 | 77 | struct delayed_work hpdet_work; |
cd59e796 | 78 | struct delayed_work micd_detect_work; |
939c5671 | 79 | struct delayed_work micd_timeout_work; |
0e27bd31 | 80 | |
4f340333 | 81 | bool hpdet_active; |
bf14ee5a | 82 | bool hpdet_done; |
9dd5e53d | 83 | bool hpdet_retried; |
4f340333 | 84 | |
dd235eea | 85 | int num_hpdet_res; |
1eda6aa7 | 86 | unsigned int hpdet_res[3]; |
dd235eea | 87 | |
f2c32a88 MB |
88 | bool mic; |
89 | bool detecting; | |
90 | int jack_flips; | |
91 | ||
4f340333 MB |
92 | int hpdet_ip; |
93 | ||
f2c32a88 MB |
94 | struct extcon_dev edev; |
95 | }; | |
96 | ||
97 | static const struct arizona_micd_config micd_default_modes[] = { | |
41024243 CK |
98 | { ARIZONA_ACCDET_SRC, 1, 0 }, |
99 | { 0, 2, 1 }, | |
f2c32a88 MB |
100 | }; |
101 | ||
6fed4d86 MB |
102 | static const struct arizona_micd_range micd_default_ranges[] = { |
103 | { .max = 11, .key = BTN_0 }, | |
104 | { .max = 28, .key = BTN_1 }, | |
105 | { .max = 54, .key = BTN_2 }, | |
106 | { .max = 100, .key = BTN_3 }, | |
107 | { .max = 186, .key = BTN_4 }, | |
108 | { .max = 430, .key = BTN_5 }, | |
109 | }; | |
110 | ||
111 | static const int arizona_micd_levels[] = { | |
112 | 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46, | |
113 | 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100, | |
114 | 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245, | |
115 | 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071, | |
116 | 1257, | |
34efe4dc MB |
117 | }; |
118 | ||
325c6423 MB |
119 | #define ARIZONA_CABLE_MECHANICAL 0 |
120 | #define ARIZONA_CABLE_MICROPHONE 1 | |
121 | #define ARIZONA_CABLE_HEADPHONE 2 | |
4f340333 | 122 | #define ARIZONA_CABLE_LINEOUT 3 |
f2c32a88 MB |
123 | |
124 | static const char *arizona_cable[] = { | |
325c6423 MB |
125 | "Mechanical", |
126 | "Microphone", | |
127 | "Headphone", | |
4f340333 | 128 | "Line-out", |
f2c32a88 MB |
129 | NULL, |
130 | }; | |
131 | ||
9dd5e53d MB |
132 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info); |
133 | ||
03409071 MB |
134 | static void arizona_extcon_do_magic(struct arizona_extcon_info *info, |
135 | unsigned int magic) | |
136 | { | |
137 | struct arizona *arizona = info->arizona; | |
03409071 MB |
138 | int ret; |
139 | ||
140 | mutex_lock(&arizona->dapm->card->dapm_mutex); | |
141 | ||
df8c3dbe | 142 | arizona->hpdet_magic = magic; |
03409071 | 143 | |
df8c3dbe MB |
144 | /* Keep the HP output stages disabled while doing the magic */ |
145 | if (magic) { | |
146 | ret = regmap_update_bits(arizona->regmap, | |
147 | ARIZONA_OUTPUT_ENABLES_1, | |
148 | ARIZONA_OUT1L_ENA | | |
149 | ARIZONA_OUT1R_ENA, 0); | |
03409071 | 150 | if (ret != 0) |
df8c3dbe MB |
151 | dev_warn(arizona->dev, |
152 | "Failed to disable headphone outputs: %d\n", | |
153 | ret); | |
154 | } | |
155 | ||
156 | ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, | |
157 | magic); | |
158 | if (ret != 0) | |
159 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
03409071 MB |
160 | ret); |
161 | ||
df8c3dbe MB |
162 | ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, |
163 | magic); | |
164 | if (ret != 0) | |
165 | dev_warn(arizona->dev, "Failed to do magic: %d\n", | |
166 | ret); | |
167 | ||
168 | /* Restore the desired state while not doing the magic */ | |
169 | if (!magic) { | |
170 | ret = regmap_update_bits(arizona->regmap, | |
171 | ARIZONA_OUTPUT_ENABLES_1, | |
172 | ARIZONA_OUT1L_ENA | | |
173 | ARIZONA_OUT1R_ENA, arizona->hp_ena); | |
03409071 | 174 | if (ret != 0) |
df8c3dbe MB |
175 | dev_warn(arizona->dev, |
176 | "Failed to restore headphone outputs: %d\n", | |
03409071 MB |
177 | ret); |
178 | } | |
179 | ||
180 | mutex_unlock(&arizona->dapm->card->dapm_mutex); | |
181 | } | |
182 | ||
f2c32a88 MB |
183 | static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) |
184 | { | |
185 | struct arizona *arizona = info->arizona; | |
186 | ||
6fed4d86 | 187 | mode %= info->micd_num_modes; |
84eaa136 | 188 | |
cd74f7b3 MB |
189 | if (arizona->pdata.micd_pol_gpio > 0) |
190 | gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio, | |
191 | info->micd_modes[mode].gpio); | |
f2c32a88 MB |
192 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, |
193 | ARIZONA_MICD_BIAS_SRC_MASK, | |
41024243 CK |
194 | info->micd_modes[mode].bias << |
195 | ARIZONA_MICD_BIAS_SRC_SHIFT); | |
f2c32a88 MB |
196 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, |
197 | ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); | |
198 | ||
199 | info->micd_mode = mode; | |
200 | ||
201 | dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode); | |
202 | } | |
203 | ||
bbbd46e3 MB |
204 | static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) |
205 | { | |
41024243 | 206 | switch (info->micd_modes[0].bias) { |
bbbd46e3 MB |
207 | case 1: |
208 | return "MICBIAS1"; | |
209 | case 2: | |
210 | return "MICBIAS2"; | |
211 | case 3: | |
212 | return "MICBIAS3"; | |
213 | default: | |
214 | return "MICVDD"; | |
215 | } | |
216 | } | |
217 | ||
218 | static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info) | |
219 | { | |
220 | struct arizona *arizona = info->arizona; | |
221 | const char *widget = arizona_extcon_get_micbias(info); | |
222 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
223 | int ret; | |
224 | ||
225 | mutex_lock(&dapm->card->dapm_mutex); | |
226 | ||
227 | ret = snd_soc_dapm_force_enable_pin(dapm, widget); | |
228 | if (ret != 0) | |
229 | dev_warn(arizona->dev, "Failed to enable %s: %d\n", | |
230 | widget, ret); | |
231 | ||
232 | mutex_unlock(&dapm->card->dapm_mutex); | |
233 | ||
234 | snd_soc_dapm_sync(dapm); | |
235 | ||
236 | if (!arizona->pdata.micd_force_micbias) { | |
237 | mutex_lock(&dapm->card->dapm_mutex); | |
238 | ||
239 | ret = snd_soc_dapm_disable_pin(arizona->dapm, widget); | |
240 | if (ret != 0) | |
241 | dev_warn(arizona->dev, "Failed to disable %s: %d\n", | |
242 | widget, ret); | |
243 | ||
244 | mutex_unlock(&dapm->card->dapm_mutex); | |
245 | ||
246 | snd_soc_dapm_sync(dapm); | |
247 | } | |
248 | } | |
249 | ||
9b1270c7 MB |
250 | static void arizona_start_mic(struct arizona_extcon_info *info) |
251 | { | |
252 | struct arizona *arizona = info->arizona; | |
253 | bool change; | |
254 | int ret; | |
255 | ||
9b1270c7 MB |
256 | /* Microphone detection can't use idle mode */ |
257 | pm_runtime_get(info->dev); | |
258 | ||
bbbd46e3 MB |
259 | if (info->detecting) { |
260 | ret = regulator_allow_bypass(info->micvdd, false); | |
261 | if (ret != 0) { | |
262 | dev_err(arizona->dev, | |
263 | "Failed to regulate MICVDD: %d\n", | |
264 | ret); | |
265 | } | |
266 | } | |
267 | ||
9b1270c7 MB |
268 | ret = regulator_enable(info->micvdd); |
269 | if (ret != 0) { | |
270 | dev_err(arizona->dev, "Failed to enable MICVDD: %d\n", | |
271 | ret); | |
272 | } | |
273 | ||
274 | if (info->micd_reva) { | |
275 | regmap_write(arizona->regmap, 0x80, 0x3); | |
276 | regmap_write(arizona->regmap, 0x294, 0); | |
277 | regmap_write(arizona->regmap, 0x80, 0x0); | |
278 | } | |
279 | ||
280 | regmap_update_bits(arizona->regmap, | |
281 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
282 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
283 | ||
bbbd46e3 MB |
284 | arizona_extcon_pulse_micbias(info); |
285 | ||
9b1270c7 MB |
286 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, |
287 | ARIZONA_MICD_ENA, ARIZONA_MICD_ENA, | |
288 | &change); | |
289 | if (!change) { | |
290 | regulator_disable(info->micvdd); | |
291 | pm_runtime_put_autosuspend(info->dev); | |
292 | } | |
293 | } | |
294 | ||
295 | static void arizona_stop_mic(struct arizona_extcon_info *info) | |
296 | { | |
297 | struct arizona *arizona = info->arizona; | |
bbbd46e3 MB |
298 | const char *widget = arizona_extcon_get_micbias(info); |
299 | struct snd_soc_dapm_context *dapm = arizona->dapm; | |
9b1270c7 | 300 | bool change; |
bbbd46e3 | 301 | int ret; |
9b1270c7 MB |
302 | |
303 | regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
304 | ARIZONA_MICD_ENA, 0, | |
305 | &change); | |
306 | ||
bbbd46e3 MB |
307 | mutex_lock(&dapm->card->dapm_mutex); |
308 | ||
309 | ret = snd_soc_dapm_disable_pin(dapm, widget); | |
310 | if (ret != 0) | |
311 | dev_warn(arizona->dev, | |
312 | "Failed to disable %s: %d\n", | |
313 | widget, ret); | |
314 | ||
315 | mutex_unlock(&dapm->card->dapm_mutex); | |
316 | ||
317 | snd_soc_dapm_sync(dapm); | |
318 | ||
9b1270c7 MB |
319 | if (info->micd_reva) { |
320 | regmap_write(arizona->regmap, 0x80, 0x3); | |
321 | regmap_write(arizona->regmap, 0x294, 2); | |
322 | regmap_write(arizona->regmap, 0x80, 0x0); | |
323 | } | |
324 | ||
bbbd46e3 MB |
325 | ret = regulator_allow_bypass(info->micvdd, true); |
326 | if (ret != 0) { | |
327 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
328 | ret); | |
329 | } | |
330 | ||
9b1270c7 MB |
331 | if (change) { |
332 | regulator_disable(info->micvdd); | |
333 | pm_runtime_mark_last_busy(info->dev); | |
334 | pm_runtime_put_autosuspend(info->dev); | |
335 | } | |
336 | } | |
337 | ||
4f340333 MB |
338 | static struct { |
339 | unsigned int factor_a; | |
340 | unsigned int factor_b; | |
341 | } arizona_hpdet_b_ranges[] = { | |
342 | { 5528, 362464 }, | |
343 | { 11084, 6186851 }, | |
344 | { 11065, 65460395 }, | |
345 | }; | |
346 | ||
347 | static struct { | |
348 | int min; | |
349 | int max; | |
350 | } arizona_hpdet_c_ranges[] = { | |
351 | { 0, 30 }, | |
352 | { 8, 100 }, | |
353 | { 100, 1000 }, | |
354 | { 1000, 10000 }, | |
355 | }; | |
356 | ||
357 | static int arizona_hpdet_read(struct arizona_extcon_info *info) | |
358 | { | |
359 | struct arizona *arizona = info->arizona; | |
360 | unsigned int val, range; | |
361 | int ret; | |
362 | ||
363 | ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val); | |
364 | if (ret != 0) { | |
365 | dev_err(arizona->dev, "Failed to read HPDET status: %d\n", | |
366 | ret); | |
367 | return ret; | |
368 | } | |
369 | ||
370 | switch (info->hpdet_ip) { | |
371 | case 0: | |
372 | if (!(val & ARIZONA_HP_DONE)) { | |
373 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
374 | val); | |
e6dd8cf2 | 375 | return -EAGAIN; |
4f340333 MB |
376 | } |
377 | ||
378 | val &= ARIZONA_HP_LVL_MASK; | |
379 | break; | |
380 | ||
381 | case 1: | |
382 | if (!(val & ARIZONA_HP_DONE_B)) { | |
383 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
384 | val); | |
e6dd8cf2 | 385 | return -EAGAIN; |
4f340333 MB |
386 | } |
387 | ||
388 | ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val); | |
389 | if (ret != 0) { | |
390 | dev_err(arizona->dev, "Failed to read HP value: %d\n", | |
391 | ret); | |
e6dd8cf2 | 392 | return -EAGAIN; |
4f340333 MB |
393 | } |
394 | ||
395 | regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
396 | &range); | |
397 | range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK) | |
398 | >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; | |
399 | ||
400 | if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && | |
4ba1a9ff | 401 | (val < 100 || val >= 0x3fb)) { |
4f340333 MB |
402 | range++; |
403 | dev_dbg(arizona->dev, "Moving to HPDET range %d\n", | |
404 | range); | |
405 | regmap_update_bits(arizona->regmap, | |
406 | ARIZONA_HEADPHONE_DETECT_1, | |
407 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
408 | range << | |
409 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
410 | return -EAGAIN; | |
411 | } | |
412 | ||
413 | /* If we go out of range report top of range */ | |
4ba1a9ff | 414 | if (val < 100 || val >= 0x3fb) { |
4f340333 | 415 | dev_dbg(arizona->dev, "Measurement out of range\n"); |
9dd5e53d | 416 | return ARIZONA_HPDET_MAX; |
4f340333 MB |
417 | } |
418 | ||
419 | dev_dbg(arizona->dev, "HPDET read %d in range %d\n", | |
420 | val, range); | |
421 | ||
422 | val = arizona_hpdet_b_ranges[range].factor_b | |
423 | / ((val * 100) - | |
424 | arizona_hpdet_b_ranges[range].factor_a); | |
425 | break; | |
426 | ||
427 | default: | |
428 | dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n", | |
429 | info->hpdet_ip); | |
430 | case 2: | |
431 | if (!(val & ARIZONA_HP_DONE_B)) { | |
432 | dev_err(arizona->dev, "HPDET did not complete: %x\n", | |
433 | val); | |
e6dd8cf2 | 434 | return -EAGAIN; |
4f340333 MB |
435 | } |
436 | ||
437 | val &= ARIZONA_HP_LVL_B_MASK; | |
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 or down a range? */ | |
445 | if (range && (val < arizona_hpdet_c_ranges[range].min)) { | |
446 | range--; | |
447 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", | |
448 | arizona_hpdet_c_ranges[range].min, | |
449 | arizona_hpdet_c_ranges[range].max); | |
450 | regmap_update_bits(arizona->regmap, | |
451 | ARIZONA_HEADPHONE_DETECT_1, | |
452 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
453 | range << | |
454 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
455 | return -EAGAIN; | |
456 | } | |
457 | ||
458 | if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 && | |
459 | (val >= arizona_hpdet_c_ranges[range].max)) { | |
460 | range++; | |
461 | dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n", | |
462 | arizona_hpdet_c_ranges[range].min, | |
463 | arizona_hpdet_c_ranges[range].max); | |
464 | regmap_update_bits(arizona->regmap, | |
465 | ARIZONA_HEADPHONE_DETECT_1, | |
466 | ARIZONA_HP_IMPEDANCE_RANGE_MASK, | |
467 | range << | |
468 | ARIZONA_HP_IMPEDANCE_RANGE_SHIFT); | |
469 | return -EAGAIN; | |
470 | } | |
471 | } | |
472 | ||
473 | dev_dbg(arizona->dev, "HP impedance %d ohms\n", val); | |
474 | return val; | |
475 | } | |
476 | ||
9c2ba270 MB |
477 | static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, |
478 | bool *mic) | |
dd235eea MB |
479 | { |
480 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 481 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
dd235eea MB |
482 | |
483 | /* | |
484 | * If we're using HPDET for accessory identification we need | |
485 | * to take multiple measurements, step through them in sequence. | |
486 | */ | |
487 | if (arizona->pdata.hpdet_acc_id) { | |
488 | info->hpdet_res[info->num_hpdet_res++] = *reading; | |
1eda6aa7 MB |
489 | |
490 | /* Only check the mic directly if we didn't already ID it */ | |
9c2ba270 | 491 | if (id_gpio && info->num_hpdet_res == 1) { |
1eda6aa7 MB |
492 | dev_dbg(arizona->dev, "Measuring mic\n"); |
493 | ||
494 | regmap_update_bits(arizona->regmap, | |
495 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
496 | ARIZONA_ACCDET_MODE_MASK | | |
497 | ARIZONA_ACCDET_SRC, | |
498 | ARIZONA_ACCDET_MODE_HPR | | |
499 | info->micd_modes[0].src); | |
500 | ||
501 | gpio_set_value_cansleep(id_gpio, 1); | |
502 | ||
dd235eea MB |
503 | regmap_update_bits(arizona->regmap, |
504 | ARIZONA_HEADPHONE_DETECT_1, | |
505 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
506 | return -EAGAIN; | |
507 | } | |
508 | ||
509 | /* OK, got both. Now, compare... */ | |
9c2ba270 MB |
510 | dev_dbg(arizona->dev, "HPDET measured %d %d\n", |
511 | info->hpdet_res[0], info->hpdet_res[1]); | |
c37b387f MB |
512 | |
513 | /* Take the headphone impedance for the main report */ | |
514 | *reading = info->hpdet_res[0]; | |
515 | ||
9dd5e53d MB |
516 | /* Sometimes we get false readings due to slow insert */ |
517 | if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) { | |
518 | dev_dbg(arizona->dev, "Retrying high impedance\n"); | |
519 | info->num_hpdet_res = 0; | |
520 | info->hpdet_retried = true; | |
521 | arizona_start_hpdet_acc_id(info); | |
522 | pm_runtime_put(info->dev); | |
523 | return -EAGAIN; | |
524 | } | |
525 | ||
1eda6aa7 | 526 | /* |
d97abdde | 527 | * If we measure the mic as high impedance |
1eda6aa7 | 528 | */ |
9c2ba270 | 529 | if (!id_gpio || info->hpdet_res[1] > 50) { |
dd235eea | 530 | dev_dbg(arizona->dev, "Detected mic\n"); |
9c2ba270 | 531 | *mic = true; |
bf14ee5a | 532 | info->detecting = true; |
dd235eea MB |
533 | } else { |
534 | dev_dbg(arizona->dev, "Detected headphone\n"); | |
535 | } | |
536 | ||
537 | /* Make sure everything is reset back to the real polarity */ | |
538 | regmap_update_bits(arizona->regmap, | |
539 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
540 | ARIZONA_ACCDET_SRC, | |
541 | info->micd_modes[0].src); | |
542 | } | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
4f340333 MB |
547 | static irqreturn_t arizona_hpdet_irq(int irq, void *data) |
548 | { | |
549 | struct arizona_extcon_info *info = data; | |
550 | struct arizona *arizona = info->arizona; | |
1eda6aa7 | 551 | int id_gpio = arizona->pdata.hpdet_id_gpio; |
4f340333 | 552 | int report = ARIZONA_CABLE_HEADPHONE; |
dd235eea | 553 | int ret, reading; |
9c2ba270 | 554 | bool mic = false; |
4f340333 MB |
555 | |
556 | mutex_lock(&info->lock); | |
557 | ||
558 | /* If we got a spurious IRQ for some reason then ignore it */ | |
559 | if (!info->hpdet_active) { | |
560 | dev_warn(arizona->dev, "Spurious HPDET IRQ\n"); | |
561 | mutex_unlock(&info->lock); | |
562 | return IRQ_NONE; | |
563 | } | |
564 | ||
565 | /* If the cable was removed while measuring ignore the result */ | |
566 | ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL); | |
567 | if (ret < 0) { | |
568 | dev_err(arizona->dev, "Failed to check cable state: %d\n", | |
569 | ret); | |
570 | goto out; | |
571 | } else if (!ret) { | |
572 | dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n"); | |
573 | goto done; | |
574 | } | |
575 | ||
576 | ret = arizona_hpdet_read(info); | |
d6675667 | 577 | if (ret == -EAGAIN) |
4f340333 | 578 | goto out; |
d6675667 | 579 | else if (ret < 0) |
4f340333 | 580 | goto done; |
dd235eea | 581 | reading = ret; |
4f340333 MB |
582 | |
583 | /* Reset back to starting range */ | |
584 | regmap_update_bits(arizona->regmap, | |
585 | ARIZONA_HEADPHONE_DETECT_1, | |
dd235eea MB |
586 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, |
587 | 0); | |
588 | ||
9c2ba270 | 589 | ret = arizona_hpdet_do_id(info, &reading, &mic); |
d6675667 | 590 | if (ret == -EAGAIN) |
dd235eea | 591 | goto out; |
d6675667 | 592 | else if (ret < 0) |
dd235eea | 593 | goto done; |
4f340333 MB |
594 | |
595 | /* Report high impedence cables as line outputs */ | |
dd235eea | 596 | if (reading >= 5000) |
4f340333 MB |
597 | report = ARIZONA_CABLE_LINEOUT; |
598 | else | |
599 | report = ARIZONA_CABLE_HEADPHONE; | |
600 | ||
601 | ret = extcon_set_cable_state_(&info->edev, report, true); | |
602 | if (ret != 0) | |
603 | dev_err(arizona->dev, "Failed to report HP/line: %d\n", | |
604 | ret); | |
605 | ||
a3e00d4b CK |
606 | done: |
607 | /* Reset back to starting range */ | |
608 | regmap_update_bits(arizona->regmap, | |
609 | ARIZONA_HEADPHONE_DETECT_1, | |
610 | ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL, | |
611 | 0); | |
612 | ||
03409071 | 613 | arizona_extcon_do_magic(info, 0); |
4f340333 | 614 | |
1eda6aa7 MB |
615 | if (id_gpio) |
616 | gpio_set_value_cansleep(id_gpio, 0); | |
4f340333 MB |
617 | |
618 | /* Revert back to MICDET mode */ | |
619 | regmap_update_bits(arizona->regmap, | |
620 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
621 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
622 | ||
623 | /* If we have a mic then reenable MICDET */ | |
9c2ba270 | 624 | if (mic || info->mic) |
4f340333 MB |
625 | arizona_start_mic(info); |
626 | ||
627 | if (info->hpdet_active) { | |
628 | pm_runtime_put_autosuspend(info->dev); | |
629 | info->hpdet_active = false; | |
630 | } | |
631 | ||
bf14ee5a MB |
632 | info->hpdet_done = true; |
633 | ||
4f340333 MB |
634 | out: |
635 | mutex_unlock(&info->lock); | |
636 | ||
637 | return IRQ_HANDLED; | |
638 | } | |
639 | ||
640 | static void arizona_identify_headphone(struct arizona_extcon_info *info) | |
641 | { | |
642 | struct arizona *arizona = info->arizona; | |
643 | int ret; | |
644 | ||
bf14ee5a MB |
645 | if (info->hpdet_done) |
646 | return; | |
647 | ||
4f340333 MB |
648 | dev_dbg(arizona->dev, "Starting HPDET\n"); |
649 | ||
650 | /* Make sure we keep the device enabled during the measurement */ | |
651 | pm_runtime_get(info->dev); | |
652 | ||
653 | info->hpdet_active = true; | |
654 | ||
655 | if (info->mic) | |
656 | arizona_stop_mic(info); | |
657 | ||
03409071 | 658 | arizona_extcon_do_magic(info, 0x4000); |
4f340333 MB |
659 | |
660 | ret = regmap_update_bits(arizona->regmap, | |
661 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
662 | ARIZONA_ACCDET_MODE_MASK, | |
663 | ARIZONA_ACCDET_MODE_HPL); | |
664 | if (ret != 0) { | |
665 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
666 | goto err; | |
667 | } | |
668 | ||
669 | ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1, | |
670 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
671 | if (ret != 0) { | |
672 | dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n", | |
673 | ret); | |
674 | goto err; | |
675 | } | |
676 | ||
677 | return; | |
678 | ||
679 | err: | |
680 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
681 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
682 | ||
683 | /* Just report headphone */ | |
684 | ret = extcon_update_state(&info->edev, | |
685 | 1 << ARIZONA_CABLE_HEADPHONE, | |
686 | 1 << ARIZONA_CABLE_HEADPHONE); | |
687 | if (ret != 0) | |
688 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
689 | ||
690 | if (info->mic) | |
691 | arizona_start_mic(info); | |
692 | ||
693 | info->hpdet_active = false; | |
694 | } | |
dd235eea MB |
695 | |
696 | static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info) | |
697 | { | |
698 | struct arizona *arizona = info->arizona; | |
9c2ba270 MB |
699 | int hp_reading = 32; |
700 | bool mic; | |
dd235eea MB |
701 | int ret; |
702 | ||
703 | dev_dbg(arizona->dev, "Starting identification via HPDET\n"); | |
704 | ||
705 | /* Make sure we keep the device enabled during the measurement */ | |
0e27bd31 | 706 | pm_runtime_get_sync(info->dev); |
dd235eea MB |
707 | |
708 | info->hpdet_active = true; | |
709 | ||
03409071 | 710 | arizona_extcon_do_magic(info, 0x4000); |
dd235eea MB |
711 | |
712 | ret = regmap_update_bits(arizona->regmap, | |
713 | ARIZONA_ACCESSORY_DETECT_MODE_1, | |
714 | ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK, | |
715 | info->micd_modes[0].src | | |
716 | ARIZONA_ACCDET_MODE_HPL); | |
717 | if (ret != 0) { | |
718 | dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret); | |
719 | goto err; | |
720 | } | |
721 | ||
9c2ba270 MB |
722 | if (arizona->pdata.hpdet_acc_id_line) { |
723 | ret = regmap_update_bits(arizona->regmap, | |
724 | ARIZONA_HEADPHONE_DETECT_1, | |
725 | ARIZONA_HP_POLL, ARIZONA_HP_POLL); | |
726 | if (ret != 0) { | |
727 | dev_err(arizona->dev, | |
728 | "Can't start HPDETL measurement: %d\n", | |
729 | ret); | |
730 | goto err; | |
731 | } | |
732 | } else { | |
733 | arizona_hpdet_do_id(info, &hp_reading, &mic); | |
4f340333 MB |
734 | } |
735 | ||
dd235eea MB |
736 | return; |
737 | ||
738 | err: | |
739 | regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, | |
740 | ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC); | |
741 | ||
742 | /* Just report headphone */ | |
743 | ret = extcon_update_state(&info->edev, | |
744 | 1 << ARIZONA_CABLE_HEADPHONE, | |
745 | 1 << ARIZONA_CABLE_HEADPHONE); | |
746 | if (ret != 0) | |
747 | dev_err(arizona->dev, "Failed to report headphone: %d\n", ret); | |
748 | ||
4f340333 MB |
749 | info->hpdet_active = false; |
750 | } | |
751 | ||
939c5671 MB |
752 | static void arizona_micd_timeout_work(struct work_struct *work) |
753 | { | |
754 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
755 | struct arizona_extcon_info, |
756 | micd_timeout_work.work); | |
939c5671 MB |
757 | |
758 | mutex_lock(&info->lock); | |
759 | ||
760 | dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n"); | |
761 | arizona_identify_headphone(info); | |
762 | ||
763 | info->detecting = false; | |
764 | ||
765 | arizona_stop_mic(info); | |
766 | ||
767 | mutex_unlock(&info->lock); | |
768 | } | |
769 | ||
cd59e796 | 770 | static void arizona_micd_detect(struct work_struct *work) |
f2c32a88 | 771 | { |
cd59e796 | 772 | struct arizona_extcon_info *info = container_of(work, |
c2275d2f CC |
773 | struct arizona_extcon_info, |
774 | micd_detect_work.work); | |
f2c32a88 | 775 | struct arizona *arizona = info->arizona; |
e2c0f476 | 776 | unsigned int val = 0, lvl; |
6fed4d86 | 777 | int ret, i, key; |
f2c32a88 | 778 | |
939c5671 MB |
779 | cancel_delayed_work_sync(&info->micd_timeout_work); |
780 | ||
f2c32a88 MB |
781 | mutex_lock(&info->lock); |
782 | ||
ffae24fe | 783 | for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) { |
e2c0f476 CK |
784 | ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); |
785 | if (ret != 0) { | |
c2275d2f CC |
786 | dev_err(arizona->dev, |
787 | "Failed to read MICDET: %d\n", ret); | |
e2c0f476 | 788 | mutex_unlock(&info->lock); |
cd59e796 | 789 | return; |
e2c0f476 CK |
790 | } |
791 | ||
792 | dev_dbg(arizona->dev, "MICDET: %x\n", val); | |
f2c32a88 | 793 | |
e2c0f476 | 794 | if (!(val & ARIZONA_MICD_VALID)) { |
c2275d2f CC |
795 | dev_warn(arizona->dev, |
796 | "Microphone detection state invalid\n"); | |
e2c0f476 | 797 | mutex_unlock(&info->lock); |
cd59e796 | 798 | return; |
e2c0f476 CK |
799 | } |
800 | } | |
f2c32a88 | 801 | |
ffae24fe | 802 | if (i == 10 && !(val & MICD_LVL_0_TO_8)) { |
e2c0f476 | 803 | dev_err(arizona->dev, "Failed to get valid MICDET value\n"); |
f2c32a88 | 804 | mutex_unlock(&info->lock); |
cd59e796 | 805 | return; |
f2c32a88 MB |
806 | } |
807 | ||
808 | /* Due to jack detect this should never happen */ | |
809 | if (!(val & ARIZONA_MICD_STS)) { | |
810 | dev_warn(arizona->dev, "Detected open circuit\n"); | |
811 | info->detecting = false; | |
812 | goto handled; | |
813 | } | |
814 | ||
815 | /* If we got a high impedence we should have a headset, report it. */ | |
ffae24fe | 816 | if (info->detecting && (val & ARIZONA_MICD_LVL_8)) { |
4f340333 MB |
817 | arizona_identify_headphone(info); |
818 | ||
325c6423 | 819 | ret = extcon_update_state(&info->edev, |
4f340333 MB |
820 | 1 << ARIZONA_CABLE_MICROPHONE, |
821 | 1 << ARIZONA_CABLE_MICROPHONE); | |
f2c32a88 MB |
822 | |
823 | if (ret != 0) | |
824 | dev_err(arizona->dev, "Headset report failed: %d\n", | |
825 | ret); | |
826 | ||
bbbd46e3 MB |
827 | /* Don't need to regulate for button detection */ |
828 | ret = regulator_allow_bypass(info->micvdd, false); | |
829 | if (ret != 0) { | |
830 | dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n", | |
831 | ret); | |
832 | } | |
833 | ||
f2c32a88 MB |
834 | info->mic = true; |
835 | info->detecting = false; | |
836 | goto handled; | |
837 | } | |
838 | ||
839 | /* If we detected a lower impedence during initial startup | |
840 | * then we probably have the wrong polarity, flip it. Don't | |
841 | * do this for the lowest impedences to speed up detection of | |
842 | * plain headphones. If both polarities report a low | |
843 | * impedence then give up and report headphones. | |
844 | */ | |
ffae24fe | 845 | if (info->detecting && (val & MICD_LVL_1_TO_7)) { |
84eaa136 | 846 | if (info->jack_flips >= info->micd_num_modes * 10) { |
4f340333 MB |
847 | dev_dbg(arizona->dev, "Detected HP/line\n"); |
848 | arizona_identify_headphone(info); | |
849 | ||
f2c32a88 | 850 | info->detecting = false; |
9ef2224d | 851 | |
4f340333 | 852 | arizona_stop_mic(info); |
f2c32a88 MB |
853 | } else { |
854 | info->micd_mode++; | |
855 | if (info->micd_mode == info->micd_num_modes) | |
856 | info->micd_mode = 0; | |
857 | arizona_extcon_set_mode(info, info->micd_mode); | |
858 | ||
859 | info->jack_flips++; | |
860 | } | |
861 | ||
862 | goto handled; | |
863 | } | |
864 | ||
865 | /* | |
866 | * If we're still detecting and we detect a short then we've | |
34efe4dc | 867 | * got a headphone. Otherwise it's a button press. |
f2c32a88 | 868 | */ |
ffae24fe | 869 | if (val & MICD_LVL_0_TO_7) { |
f2c32a88 MB |
870 | if (info->mic) { |
871 | dev_dbg(arizona->dev, "Mic button detected\n"); | |
872 | ||
34efe4dc MB |
873 | lvl = val & ARIZONA_MICD_LVL_MASK; |
874 | lvl >>= ARIZONA_MICD_LVL_SHIFT; | |
875 | ||
41a57850 MB |
876 | for (i = 0; i < info->num_micd_ranges; i++) |
877 | input_report_key(info->input, | |
878 | info->micd_ranges[i].key, 0); | |
879 | ||
6fed4d86 MB |
880 | WARN_ON(!lvl); |
881 | WARN_ON(ffs(lvl) - 1 >= info->num_micd_ranges); | |
882 | if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) { | |
883 | key = info->micd_ranges[ffs(lvl) - 1].key; | |
884 | input_report_key(info->input, key, 1); | |
885 | input_sync(info->input); | |
886 | } | |
34efe4dc | 887 | |
f2c32a88 MB |
888 | } else if (info->detecting) { |
889 | dev_dbg(arizona->dev, "Headphone detected\n"); | |
890 | info->detecting = false; | |
891 | arizona_stop_mic(info); | |
892 | ||
4f340333 | 893 | arizona_identify_headphone(info); |
f2c32a88 MB |
894 | } else { |
895 | dev_warn(arizona->dev, "Button with no mic: %x\n", | |
896 | val); | |
897 | } | |
898 | } else { | |
899 | dev_dbg(arizona->dev, "Mic button released\n"); | |
6fed4d86 | 900 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 901 | input_report_key(info->input, |
6fed4d86 | 902 | info->micd_ranges[i].key, 0); |
34efe4dc | 903 | input_sync(info->input); |
bbbd46e3 | 904 | arizona_extcon_pulse_micbias(info); |
f2c32a88 MB |
905 | } |
906 | ||
907 | handled: | |
939c5671 | 908 | if (info->detecting) |
df9a5ab4 MB |
909 | queue_delayed_work(system_power_efficient_wq, |
910 | &info->micd_timeout_work, | |
911 | msecs_to_jiffies(info->micd_timeout)); | |
939c5671 | 912 | |
f2c32a88 MB |
913 | pm_runtime_mark_last_busy(info->dev); |
914 | mutex_unlock(&info->lock); | |
cd59e796 MB |
915 | } |
916 | ||
917 | static irqreturn_t arizona_micdet(int irq, void *data) | |
918 | { | |
919 | struct arizona_extcon_info *info = data; | |
920 | struct arizona *arizona = info->arizona; | |
921 | int debounce = arizona->pdata.micd_detect_debounce; | |
922 | ||
923 | cancel_delayed_work_sync(&info->micd_detect_work); | |
924 | cancel_delayed_work_sync(&info->micd_timeout_work); | |
925 | ||
926 | mutex_lock(&info->lock); | |
927 | if (!info->detecting) | |
928 | debounce = 0; | |
929 | mutex_unlock(&info->lock); | |
930 | ||
931 | if (debounce) | |
df9a5ab4 MB |
932 | queue_delayed_work(system_power_efficient_wq, |
933 | &info->micd_detect_work, | |
934 | msecs_to_jiffies(debounce)); | |
cd59e796 MB |
935 | else |
936 | arizona_micd_detect(&info->micd_detect_work.work); | |
f2c32a88 MB |
937 | |
938 | return IRQ_HANDLED; | |
939 | } | |
940 | ||
0e27bd31 MB |
941 | static void arizona_hpdet_work(struct work_struct *work) |
942 | { | |
943 | struct arizona_extcon_info *info = container_of(work, | |
c2275d2f CC |
944 | struct arizona_extcon_info, |
945 | hpdet_work.work); | |
0e27bd31 MB |
946 | |
947 | mutex_lock(&info->lock); | |
948 | arizona_start_hpdet_acc_id(info); | |
949 | mutex_unlock(&info->lock); | |
950 | } | |
951 | ||
f2c32a88 MB |
952 | static irqreturn_t arizona_jackdet(int irq, void *data) |
953 | { | |
954 | struct arizona_extcon_info *info = data; | |
955 | struct arizona *arizona = info->arizona; | |
92a49871 | 956 | unsigned int val, present, mask; |
939c5671 | 957 | bool cancelled_hp, cancelled_mic; |
34efe4dc | 958 | int ret, i; |
f2c32a88 | 959 | |
939c5671 MB |
960 | cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work); |
961 | cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work); | |
f2c32a88 | 962 | |
a3e2078d | 963 | pm_runtime_get_sync(info->dev); |
0e27bd31 | 964 | |
f2c32a88 MB |
965 | mutex_lock(&info->lock); |
966 | ||
92a49871 MB |
967 | if (arizona->pdata.jd_gpio5) { |
968 | mask = ARIZONA_MICD_CLAMP_STS; | |
969 | present = 0; | |
970 | } else { | |
971 | mask = ARIZONA_JD1_STS; | |
972 | present = ARIZONA_JD1_STS; | |
973 | } | |
974 | ||
f2c32a88 MB |
975 | ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val); |
976 | if (ret != 0) { | |
977 | dev_err(arizona->dev, "Failed to read jackdet status: %d\n", | |
978 | ret); | |
979 | mutex_unlock(&info->lock); | |
980 | pm_runtime_put_autosuspend(info->dev); | |
981 | return IRQ_NONE; | |
982 | } | |
983 | ||
a3e2078d MB |
984 | val &= mask; |
985 | if (val == info->last_jackdet) { | |
986 | dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n"); | |
939c5671 | 987 | if (cancelled_hp) |
df9a5ab4 MB |
988 | queue_delayed_work(system_power_efficient_wq, |
989 | &info->hpdet_work, | |
990 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
a3e2078d | 991 | |
c2275d2f CC |
992 | if (cancelled_mic) { |
993 | int micd_timeout = info->micd_timeout; | |
994 | ||
df9a5ab4 MB |
995 | queue_delayed_work(system_power_efficient_wq, |
996 | &info->micd_timeout_work, | |
c2275d2f CC |
997 | msecs_to_jiffies(micd_timeout)); |
998 | } | |
939c5671 | 999 | |
a3e2078d MB |
1000 | goto out; |
1001 | } | |
1002 | info->last_jackdet = val; | |
1003 | ||
1004 | if (info->last_jackdet == present) { | |
f2c32a88 | 1005 | dev_dbg(arizona->dev, "Detected jack\n"); |
325c6423 MB |
1006 | ret = extcon_set_cable_state_(&info->edev, |
1007 | ARIZONA_CABLE_MECHANICAL, true); | |
f2c32a88 MB |
1008 | |
1009 | if (ret != 0) | |
1010 | dev_err(arizona->dev, "Mechanical report failed: %d\n", | |
1011 | ret); | |
1012 | ||
dd235eea MB |
1013 | if (!arizona->pdata.hpdet_acc_id) { |
1014 | info->detecting = true; | |
1015 | info->mic = false; | |
1016 | info->jack_flips = 0; | |
1017 | ||
1018 | arizona_start_mic(info); | |
1019 | } else { | |
df9a5ab4 MB |
1020 | queue_delayed_work(system_power_efficient_wq, |
1021 | &info->hpdet_work, | |
1022 | msecs_to_jiffies(HPDET_DEBOUNCE)); | |
dd235eea | 1023 | } |
4e616877 MB |
1024 | |
1025 | regmap_update_bits(arizona->regmap, | |
1026 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1027 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0); | |
f2c32a88 MB |
1028 | } else { |
1029 | dev_dbg(arizona->dev, "Detected jack removal\n"); | |
1030 | ||
1031 | arizona_stop_mic(info); | |
1032 | ||
dd235eea MB |
1033 | info->num_hpdet_res = 0; |
1034 | for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++) | |
1035 | info->hpdet_res[i] = 0; | |
1036 | info->mic = false; | |
bf14ee5a | 1037 | info->hpdet_done = false; |
9dd5e53d | 1038 | info->hpdet_retried = false; |
92a49871 | 1039 | |
6fed4d86 | 1040 | for (i = 0; i < info->num_micd_ranges; i++) |
34efe4dc | 1041 | input_report_key(info->input, |
6fed4d86 | 1042 | info->micd_ranges[i].key, 0); |
34efe4dc MB |
1043 | input_sync(info->input); |
1044 | ||
f2c32a88 MB |
1045 | ret = extcon_update_state(&info->edev, 0xffffffff, 0); |
1046 | if (ret != 0) | |
1047 | dev_err(arizona->dev, "Removal report failed: %d\n", | |
1048 | ret); | |
4e616877 MB |
1049 | |
1050 | regmap_update_bits(arizona->regmap, | |
1051 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1052 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, | |
1053 | ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB); | |
f2c32a88 MB |
1054 | } |
1055 | ||
7abd4e2a MB |
1056 | if (arizona->pdata.micd_timeout) |
1057 | info->micd_timeout = arizona->pdata.micd_timeout; | |
1058 | else | |
1059 | info->micd_timeout = DEFAULT_MICD_TIMEOUT; | |
1060 | ||
cb9005d7 | 1061 | out: |
5d9ab708 CK |
1062 | /* Clear trig_sts to make sure DCVDD is not forced up */ |
1063 | regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, | |
1064 | ARIZONA_MICD_CLAMP_FALL_TRIG_STS | | |
1065 | ARIZONA_MICD_CLAMP_RISE_TRIG_STS | | |
1066 | ARIZONA_JD1_FALL_TRIG_STS | | |
1067 | ARIZONA_JD1_RISE_TRIG_STS); | |
1068 | ||
f2c32a88 MB |
1069 | mutex_unlock(&info->lock); |
1070 | ||
1071 | pm_runtime_mark_last_busy(info->dev); | |
1072 | pm_runtime_put_autosuspend(info->dev); | |
1073 | ||
1074 | return IRQ_HANDLED; | |
1075 | } | |
1076 | ||
6fed4d86 MB |
1077 | /* Map a level onto a slot in the register bank */ |
1078 | static void arizona_micd_set_level(struct arizona *arizona, int index, | |
1079 | unsigned int level) | |
1080 | { | |
1081 | int reg; | |
1082 | unsigned int mask; | |
1083 | ||
1084 | reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2); | |
1085 | ||
1086 | if (!(index % 2)) { | |
1087 | mask = 0x3f00; | |
1088 | level <<= 8; | |
1089 | } else { | |
1090 | mask = 0x3f; | |
1091 | } | |
1092 | ||
1093 | /* Program the level itself */ | |
1094 | regmap_update_bits(arizona->regmap, reg, mask, level); | |
1095 | } | |
1096 | ||
44f34fd4 | 1097 | static int arizona_extcon_probe(struct platform_device *pdev) |
f2c32a88 MB |
1098 | { |
1099 | struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); | |
6ac6b475 | 1100 | struct arizona_pdata *pdata = &arizona->pdata; |
f2c32a88 | 1101 | struct arizona_extcon_info *info; |
e56a0a57 | 1102 | unsigned int val; |
92a49871 | 1103 | int jack_irq_fall, jack_irq_rise; |
6fed4d86 | 1104 | int ret, mode, i, j; |
f2c32a88 | 1105 | |
bbbd46e3 MB |
1106 | if (!arizona->dapm || !arizona->dapm->card) |
1107 | return -EPROBE_DEFER; | |
1108 | ||
f2c32a88 MB |
1109 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
1110 | if (!info) { | |
8e5f5018 | 1111 | dev_err(&pdev->dev, "Failed to allocate memory\n"); |
f2c32a88 MB |
1112 | ret = -ENOMEM; |
1113 | goto err; | |
1114 | } | |
1115 | ||
1116 | info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); | |
1117 | if (IS_ERR(info->micvdd)) { | |
1118 | ret = PTR_ERR(info->micvdd); | |
1119 | dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); | |
1120 | goto err; | |
1121 | } | |
1122 | ||
1123 | mutex_init(&info->lock); | |
1124 | info->arizona = arizona; | |
1125 | info->dev = &pdev->dev; | |
a3e2078d | 1126 | info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS); |
0e27bd31 | 1127 | INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work); |
cd59e796 | 1128 | INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect); |
939c5671 | 1129 | INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work); |
f2c32a88 MB |
1130 | platform_set_drvdata(pdev, info); |
1131 | ||
1132 | switch (arizona->type) { | |
1133 | case WM5102: | |
1134 | switch (arizona->rev) { | |
1135 | case 0: | |
1136 | info->micd_reva = true; | |
1137 | break; | |
1138 | default: | |
dab63eb2 | 1139 | info->micd_clamp = true; |
4f340333 | 1140 | info->hpdet_ip = 1; |
f2c32a88 MB |
1141 | break; |
1142 | } | |
1143 | break; | |
1144 | default: | |
1145 | break; | |
1146 | } | |
1147 | ||
1148 | info->edev.name = "Headset Jack"; | |
42d7d753 | 1149 | info->edev.dev.parent = arizona->dev; |
f2c32a88 | 1150 | info->edev.supported_cable = arizona_cable; |
f2c32a88 | 1151 | |
42d7d753 | 1152 | ret = extcon_dev_register(&info->edev); |
f2c32a88 | 1153 | if (ret < 0) { |
8e5f5018 | 1154 | dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", |
f2c32a88 MB |
1155 | ret); |
1156 | goto err; | |
1157 | } | |
1158 | ||
6fed4d86 MB |
1159 | info->input = devm_input_allocate_device(&pdev->dev); |
1160 | if (!info->input) { | |
1161 | dev_err(arizona->dev, "Can't allocate input dev\n"); | |
1162 | ret = -ENOMEM; | |
1163 | goto err_register; | |
1164 | } | |
1165 | ||
1166 | info->input->name = "Headset"; | |
1167 | info->input->phys = "arizona/extcon"; | |
1168 | info->input->dev.parent = &pdev->dev; | |
1169 | ||
f2c32a88 MB |
1170 | if (pdata->num_micd_configs) { |
1171 | info->micd_modes = pdata->micd_configs; | |
1172 | info->micd_num_modes = pdata->num_micd_configs; | |
1173 | } else { | |
1174 | info->micd_modes = micd_default_modes; | |
1175 | info->micd_num_modes = ARRAY_SIZE(micd_default_modes); | |
1176 | } | |
1177 | ||
1178 | if (arizona->pdata.micd_pol_gpio > 0) { | |
1179 | if (info->micd_modes[0].gpio) | |
1180 | mode = GPIOF_OUT_INIT_HIGH; | |
1181 | else | |
1182 | mode = GPIOF_OUT_INIT_LOW; | |
1183 | ||
1184 | ret = devm_gpio_request_one(&pdev->dev, | |
1185 | arizona->pdata.micd_pol_gpio, | |
1186 | mode, | |
1187 | "MICD polarity"); | |
1188 | if (ret != 0) { | |
1189 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1190 | arizona->pdata.micd_pol_gpio, ret); | |
1191 | goto err_register; | |
1192 | } | |
1193 | } | |
1194 | ||
1eda6aa7 MB |
1195 | if (arizona->pdata.hpdet_id_gpio > 0) { |
1196 | ret = devm_gpio_request_one(&pdev->dev, | |
1197 | arizona->pdata.hpdet_id_gpio, | |
1198 | GPIOF_OUT_INIT_LOW, | |
1199 | "HPDET"); | |
1200 | if (ret != 0) { | |
1201 | dev_err(arizona->dev, "Failed to request GPIO%d: %d\n", | |
1202 | arizona->pdata.hpdet_id_gpio, ret); | |
1203 | goto err_register; | |
1204 | } | |
1205 | } | |
1206 | ||
b17e5462 MB |
1207 | if (arizona->pdata.micd_bias_start_time) |
1208 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1209 | ARIZONA_MICD_BIAS_STARTTIME_MASK, | |
1210 | arizona->pdata.micd_bias_start_time | |
1211 | << ARIZONA_MICD_BIAS_STARTTIME_SHIFT); | |
1212 | ||
2e033db5 MB |
1213 | if (arizona->pdata.micd_rate) |
1214 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1215 | ARIZONA_MICD_RATE_MASK, | |
1216 | arizona->pdata.micd_rate | |
1217 | << ARIZONA_MICD_RATE_SHIFT); | |
1218 | ||
1219 | if (arizona->pdata.micd_dbtime) | |
1220 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, | |
1221 | ARIZONA_MICD_DBTIME_MASK, | |
1222 | arizona->pdata.micd_dbtime | |
1223 | << ARIZONA_MICD_DBTIME_SHIFT); | |
1224 | ||
6fed4d86 MB |
1225 | BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40); |
1226 | ||
1227 | if (arizona->pdata.num_micd_ranges) { | |
1228 | info->micd_ranges = pdata->micd_ranges; | |
1229 | info->num_micd_ranges = pdata->num_micd_ranges; | |
1230 | } else { | |
1231 | info->micd_ranges = micd_default_ranges; | |
1232 | info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges); | |
1233 | } | |
1234 | ||
1235 | if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) { | |
1236 | dev_err(arizona->dev, "Too many MICD ranges: %d\n", | |
1237 | arizona->pdata.num_micd_ranges); | |
1238 | } | |
1239 | ||
1240 | if (info->num_micd_ranges > 1) { | |
1241 | for (i = 1; i < info->num_micd_ranges; i++) { | |
1242 | if (info->micd_ranges[i - 1].max > | |
1243 | info->micd_ranges[i].max) { | |
1244 | dev_err(arizona->dev, | |
1245 | "MICD ranges must be sorted\n"); | |
1246 | ret = -EINVAL; | |
1247 | goto err_input; | |
1248 | } | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | /* Disable all buttons by default */ | |
1253 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1254 | ARIZONA_MICD_LVL_SEL_MASK, 0x81); | |
1255 | ||
1256 | /* Set up all the buttons the user specified */ | |
1257 | for (i = 0; i < info->num_micd_ranges; i++) { | |
1258 | for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++) | |
1259 | if (arizona_micd_levels[j] >= info->micd_ranges[i].max) | |
1260 | break; | |
1261 | ||
1262 | if (j == ARRAY_SIZE(arizona_micd_levels)) { | |
1263 | dev_err(arizona->dev, "Unsupported MICD level %d\n", | |
1264 | info->micd_ranges[i].max); | |
1265 | ret = -EINVAL; | |
1266 | goto err_input; | |
1267 | } | |
1268 | ||
1269 | dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n", | |
1270 | arizona_micd_levels[j], i); | |
1271 | ||
1272 | arizona_micd_set_level(arizona, i, j); | |
1273 | input_set_capability(info->input, EV_KEY, | |
1274 | info->micd_ranges[i].key); | |
1275 | ||
1276 | /* Enable reporting of that range */ | |
1277 | regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2, | |
1278 | 1 << i, 1 << i); | |
1279 | } | |
1280 | ||
1281 | /* Set all the remaining keys to a maximum */ | |
1282 | for (; i < ARIZONA_MAX_MICD_RANGE; i++) | |
1283 | arizona_micd_set_level(arizona, i, 0x3f); | |
1284 | ||
dab63eb2 | 1285 | /* |
92a49871 MB |
1286 | * If we have a clamp use it, activating in conjunction with |
1287 | * GPIO5 if that is connected for jack detect operation. | |
dab63eb2 MB |
1288 | */ |
1289 | if (info->micd_clamp) { | |
92a49871 | 1290 | if (arizona->pdata.jd_gpio5) { |
e56a0a57 MB |
1291 | /* Put the GPIO into input mode with optional pull */ |
1292 | val = 0xc101; | |
1293 | if (arizona->pdata.jd_gpio5_nopull) | |
1294 | val &= ~ARIZONA_GPN_PU; | |
1295 | ||
92a49871 | 1296 | regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL, |
e56a0a57 | 1297 | val); |
92a49871 MB |
1298 | |
1299 | regmap_update_bits(arizona->regmap, | |
1300 | ARIZONA_MICD_CLAMP_CONTROL, | |
1301 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x9); | |
1302 | } else { | |
1303 | regmap_update_bits(arizona->regmap, | |
1304 | ARIZONA_MICD_CLAMP_CONTROL, | |
1305 | ARIZONA_MICD_CLAMP_MODE_MASK, 0x4); | |
1306 | } | |
1307 | ||
dab63eb2 MB |
1308 | regmap_update_bits(arizona->regmap, |
1309 | ARIZONA_JACK_DETECT_DEBOUNCE, | |
1310 | ARIZONA_MICD_CLAMP_DB, | |
1311 | ARIZONA_MICD_CLAMP_DB); | |
1312 | } | |
1313 | ||
f2c32a88 MB |
1314 | arizona_extcon_set_mode(info, 0); |
1315 | ||
1316 | pm_runtime_enable(&pdev->dev); | |
1317 | pm_runtime_idle(&pdev->dev); | |
1318 | pm_runtime_get_sync(&pdev->dev); | |
1319 | ||
92a49871 MB |
1320 | if (arizona->pdata.jd_gpio5) { |
1321 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1322 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1323 | } else { | |
1324 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1325 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1326 | } | |
1327 | ||
1328 | ret = arizona_request_irq(arizona, jack_irq_rise, | |
f2c32a88 MB |
1329 | "JACKDET rise", arizona_jackdet, info); |
1330 | if (ret != 0) { | |
1331 | dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n", | |
1332 | ret); | |
34efe4dc | 1333 | goto err_input; |
f2c32a88 MB |
1334 | } |
1335 | ||
92a49871 | 1336 | ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1); |
f2c32a88 MB |
1337 | if (ret != 0) { |
1338 | dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n", | |
1339 | ret); | |
1340 | goto err_rise; | |
1341 | } | |
1342 | ||
92a49871 | 1343 | ret = arizona_request_irq(arizona, jack_irq_fall, |
f2c32a88 MB |
1344 | "JACKDET fall", arizona_jackdet, info); |
1345 | if (ret != 0) { | |
1346 | dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret); | |
1347 | goto err_rise_wake; | |
1348 | } | |
1349 | ||
92a49871 | 1350 | ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1); |
f2c32a88 MB |
1351 | if (ret != 0) { |
1352 | dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n", | |
1353 | ret); | |
1354 | goto err_fall; | |
1355 | } | |
1356 | ||
1357 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET, | |
1358 | "MICDET", arizona_micdet, info); | |
1359 | if (ret != 0) { | |
1360 | dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret); | |
1361 | goto err_fall_wake; | |
1362 | } | |
1363 | ||
4f340333 MB |
1364 | ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET, |
1365 | "HPDET", arizona_hpdet_irq, info); | |
1366 | if (ret != 0) { | |
1367 | dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret); | |
1368 | goto err_micdet; | |
1369 | } | |
1370 | ||
f2c32a88 MB |
1371 | arizona_clk32k_enable(arizona); |
1372 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE, | |
1373 | ARIZONA_JD1_DB, ARIZONA_JD1_DB); | |
1374 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, | |
1375 | ARIZONA_JD1_ENA, ARIZONA_JD1_ENA); | |
1376 | ||
b8575a11 MB |
1377 | ret = regulator_allow_bypass(info->micvdd, true); |
1378 | if (ret != 0) | |
1379 | dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n", | |
1380 | ret); | |
1381 | ||
f2c32a88 MB |
1382 | pm_runtime_put(&pdev->dev); |
1383 | ||
34efe4dc MB |
1384 | ret = input_register_device(info->input); |
1385 | if (ret) { | |
1386 | dev_err(&pdev->dev, "Can't register input device: %d\n", ret); | |
4f340333 | 1387 | goto err_hpdet; |
34efe4dc MB |
1388 | } |
1389 | ||
f2c32a88 MB |
1390 | return 0; |
1391 | ||
4f340333 MB |
1392 | err_hpdet: |
1393 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
80732cc1 MB |
1394 | err_micdet: |
1395 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); | |
f2c32a88 | 1396 | err_fall_wake: |
92a49871 | 1397 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); |
f2c32a88 | 1398 | err_fall: |
92a49871 | 1399 | arizona_free_irq(arizona, jack_irq_fall, info); |
f2c32a88 | 1400 | err_rise_wake: |
92a49871 | 1401 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); |
f2c32a88 | 1402 | err_rise: |
92a49871 | 1403 | arizona_free_irq(arizona, jack_irq_rise, info); |
34efe4dc | 1404 | err_input: |
f2c32a88 MB |
1405 | err_register: |
1406 | pm_runtime_disable(&pdev->dev); | |
1407 | extcon_dev_unregister(&info->edev); | |
1408 | err: | |
1409 | return ret; | |
1410 | } | |
1411 | ||
93ed0327 | 1412 | static int arizona_extcon_remove(struct platform_device *pdev) |
f2c32a88 MB |
1413 | { |
1414 | struct arizona_extcon_info *info = platform_get_drvdata(pdev); | |
1415 | struct arizona *arizona = info->arizona; | |
92a49871 | 1416 | int jack_irq_rise, jack_irq_fall; |
f2c32a88 MB |
1417 | |
1418 | pm_runtime_disable(&pdev->dev); | |
1419 | ||
dab63eb2 MB |
1420 | regmap_update_bits(arizona->regmap, |
1421 | ARIZONA_MICD_CLAMP_CONTROL, | |
1422 | ARIZONA_MICD_CLAMP_MODE_MASK, 0); | |
1423 | ||
92a49871 MB |
1424 | if (arizona->pdata.jd_gpio5) { |
1425 | jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE; | |
1426 | jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL; | |
1427 | } else { | |
1428 | jack_irq_rise = ARIZONA_IRQ_JD_RISE; | |
1429 | jack_irq_fall = ARIZONA_IRQ_JD_FALL; | |
1430 | } | |
1431 | ||
1432 | arizona_set_irq_wake(arizona, jack_irq_rise, 0); | |
1433 | arizona_set_irq_wake(arizona, jack_irq_fall, 0); | |
1434 | arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info); | |
f2c32a88 | 1435 | arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info); |
92a49871 MB |
1436 | arizona_free_irq(arizona, jack_irq_rise, info); |
1437 | arizona_free_irq(arizona, jack_irq_fall, info); | |
0e27bd31 | 1438 | cancel_delayed_work_sync(&info->hpdet_work); |
f2c32a88 MB |
1439 | regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, |
1440 | ARIZONA_JD1_ENA, 0); | |
1441 | arizona_clk32k_disable(arizona); | |
1442 | extcon_dev_unregister(&info->edev); | |
1443 | ||
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | static struct platform_driver arizona_extcon_driver = { | |
1448 | .driver = { | |
1449 | .name = "arizona-extcon", | |
1450 | .owner = THIS_MODULE, | |
1451 | }, | |
1452 | .probe = arizona_extcon_probe, | |
5f7e2228 | 1453 | .remove = arizona_extcon_remove, |
f2c32a88 MB |
1454 | }; |
1455 | ||
1456 | module_platform_driver(arizona_extcon_driver); | |
1457 | ||
1458 | MODULE_DESCRIPTION("Arizona Extcon driver"); | |
1459 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
1460 | MODULE_LICENSE("GPL"); | |
1461 | MODULE_ALIAS("platform:extcon-arizona"); |