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