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sh_eth: fix EESIPR values for SH77{34|63}
[linux/fpc-iii.git] / sound / soc / codecs / da7219-aad.c
blob6274d79c1353ed1ad342aeabf0b523d970c721ff
1 /*
2 * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
3 *
4 * Copyright (c) 2015 Dialog Semiconductor Ltd.
5 *
6 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16 #include <linux/clk.h>
17 #include <linux/i2c.h>
18 #include <linux/property.h>
19 #include <linux/pm_wakeirq.h>
20 #include <linux/slab.h>
21 #include <linux/delay.h>
22 #include <linux/workqueue.h>
23 #include <sound/soc.h>
24 #include <sound/jack.h>
25 #include <sound/da7219.h>
26
27 #include "da7219.h"
28 #include "da7219-aad.h"
29
30
31 /*
32 * Detection control
33 */
34
35 void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
36 {
37 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
38
39 da7219->aad->jack = jack;
40 da7219->aad->jack_inserted = false;
41
42 /* Send an initial empty report */
43 snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
44
45 /* Enable/Disable jack detection */
46 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
47 DA7219_ACCDET_EN_MASK,
48 (jack ? DA7219_ACCDET_EN_MASK : 0));
49 }
50 EXPORT_SYMBOL_GPL(da7219_aad_jack_det);
51
52 /*
53 * Button/HPTest work
54 */
55
56 static void da7219_aad_btn_det_work(struct work_struct *work)
57 {
58 struct da7219_aad_priv *da7219_aad =
59 container_of(work, struct da7219_aad_priv, btn_det_work);
60 struct snd_soc_codec *codec = da7219_aad->codec;
61 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
62 u8 statusa, micbias_ctrl;
63 bool micbias_up = false;
64 int retries = 0;
65
66 /* Drive headphones/lineout */
67 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
68 DA7219_HP_L_AMP_OE_MASK,
69 DA7219_HP_L_AMP_OE_MASK);
70 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
71 DA7219_HP_R_AMP_OE_MASK,
72 DA7219_HP_R_AMP_OE_MASK);
73
74 /* Make sure mic bias is up */
75 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
76 snd_soc_dapm_sync(dapm);
77
78 do {
79 statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
80 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
81 micbias_up = true;
82 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
83 msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
84 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
85
86 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
87 dev_warn(codec->dev, "Mic bias status check timed out");
88
89 /*
90 * Mic bias pulse required to enable mic, must be done before enabling
91 * button detection to prevent erroneous button readings.
92 */
93 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
94 /* Pulse higher level voltage */
95 micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
96 snd_soc_update_bits(codec, DA7219_MICBIAS_CTRL,
97 DA7219_MICBIAS1_LEVEL_MASK,
98 da7219_aad->micbias_pulse_lvl);
99 msleep(da7219_aad->micbias_pulse_time);
100 snd_soc_write(codec, DA7219_MICBIAS_CTRL, micbias_ctrl);
101
102 }
103
104 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
105 DA7219_BUTTON_CONFIG_MASK,
106 da7219_aad->btn_cfg);
107 }
108
109 static void da7219_aad_hptest_work(struct work_struct *work)
110 {
111 struct da7219_aad_priv *da7219_aad =
112 container_of(work, struct da7219_aad_priv, hptest_work);
113 struct snd_soc_codec *codec = da7219_aad->codec;
114 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
115 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
116
117 u16 tonegen_freq_hptest;
118 u8 pll_srm_sts, gain_ramp_ctrl, accdet_cfg8;
119 int report = 0, ret = 0;
120
121 /* Lock DAPM and any Kcontrols that are affected by this test */
122 snd_soc_dapm_mutex_lock(dapm);
123 mutex_lock(&da7219->lock);
124
125 /* Ensure MCLK is available for HP test procedure */
126 if (da7219->mclk) {
127 ret = clk_prepare_enable(da7219->mclk);
128 if (ret) {
129 dev_err(codec->dev, "Failed to enable mclk - %d\n", ret);
130 mutex_unlock(&da7219->lock);
131 snd_soc_dapm_mutex_unlock(dapm);
132 return;
133 }
134 }
135
136 /*
137 * If MCLK not present, then we're using the internal oscillator and
138 * require different frequency settings to achieve the same result.
139 */
140 pll_srm_sts = snd_soc_read(codec, DA7219_PLL_SRM_STS);
141 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK)
142 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
143 else
144 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
145
146 /* Ensure gain ramping at fastest rate */
147 gain_ramp_ctrl = snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL);
148 snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
149
150 /* Bypass cache so it saves current settings */
151 regcache_cache_bypass(da7219->regmap, true);
152
153 /* Make sure Tone Generator is disabled */
154 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
155
156 /* Enable HPTest block, 1KOhms check */
157 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
158 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
159 DA7219_HPTEST_EN_MASK |
160 DA7219_HPTEST_RES_SEL_1KOHMS);
161
162 /* Set gains to 0db */
163 snd_soc_write(codec, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
164 snd_soc_write(codec, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
165 snd_soc_write(codec, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
166 snd_soc_write(codec, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
167
168 /* Disable DAC filters, EQs and soft mute */
169 snd_soc_update_bits(codec, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
170 0);
171 snd_soc_update_bits(codec, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
172 0);
173 snd_soc_update_bits(codec, DA7219_DAC_FILTERS5,
174 DA7219_DAC_SOFTMUTE_EN_MASK, 0);
175
176 /* Enable HP left & right paths */
177 snd_soc_update_bits(codec, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
178 DA7219_CP_EN_MASK);
179 snd_soc_update_bits(codec, DA7219_DIG_ROUTING_DAC,
180 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
181 DA7219_DAC_L_SRC_TONEGEN |
182 DA7219_DAC_R_SRC_TONEGEN);
183 snd_soc_update_bits(codec, DA7219_DAC_L_CTRL,
184 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
185 DA7219_DAC_L_EN_MASK);
186 snd_soc_update_bits(codec, DA7219_DAC_R_CTRL,
187 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
188 DA7219_DAC_R_EN_MASK);
189 snd_soc_update_bits(codec, DA7219_MIXOUT_L_SELECT,
190 DA7219_MIXOUT_L_MIX_SELECT_MASK,
191 DA7219_MIXOUT_L_MIX_SELECT_MASK);
192 snd_soc_update_bits(codec, DA7219_MIXOUT_R_SELECT,
193 DA7219_MIXOUT_R_MIX_SELECT_MASK,
194 DA7219_MIXOUT_R_MIX_SELECT_MASK);
195 snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1L,
196 DA7219_OUTFILT_ST_1L_SRC_MASK,
197 DA7219_DMIX_ST_SRC_OUTFILT1L);
198 snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1R,
199 DA7219_OUTFILT_ST_1R_SRC_MASK,
200 DA7219_DMIX_ST_SRC_OUTFILT1R);
201 snd_soc_update_bits(codec, DA7219_MIXOUT_L_CTRL,
202 DA7219_MIXOUT_L_AMP_EN_MASK,
203 DA7219_MIXOUT_L_AMP_EN_MASK);
204 snd_soc_update_bits(codec, DA7219_MIXOUT_R_CTRL,
205 DA7219_MIXOUT_R_AMP_EN_MASK,
206 DA7219_MIXOUT_R_AMP_EN_MASK);
207 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
208 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
209 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
210 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
211 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
212 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
213 msleep(DA7219_SETTLING_DELAY);
214 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
215 DA7219_HP_L_AMP_MUTE_EN_MASK |
216 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
217 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
218 DA7219_HP_R_AMP_MUTE_EN_MASK |
219 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
220
221 /*
222 * If we're running from the internal oscillator then give audio paths
223 * time to settle before running test.
224 */
225 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
226 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
227
228 /* Configure & start Tone Generator */
229 snd_soc_write(codec, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
230 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
231 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
232 snd_soc_update_bits(codec, DA7219_TONE_GEN_CFG2,
233 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
234 DA7219_SWG_SEL_SRAMP |
235 DA7219_TONE_GEN_GAIN_MINUS_15DB);
236 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
237
238 msleep(DA7219_AAD_HPTEST_PERIOD);
239
240 /* Grab comparator reading */
241 accdet_cfg8 = snd_soc_read(codec, DA7219_ACCDET_CONFIG_8);
242 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
243 report |= SND_JACK_HEADPHONE;
244 else
245 report |= SND_JACK_LINEOUT;
246
247 /* Stop tone generator */
248 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
249
250 msleep(DA7219_AAD_HPTEST_PERIOD);
251
252 /* Restore original settings from cache */
253 regcache_mark_dirty(da7219->regmap);
254 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
255 DA7219_HP_R_CTRL);
256 msleep(DA7219_SETTLING_DELAY);
257 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
258 DA7219_MIXOUT_R_CTRL);
259 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
260 DA7219_DROUTING_ST_OUTFILT_1R);
261 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
262 DA7219_MIXOUT_R_SELECT);
263 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
264 DA7219_DAC_R_CTRL);
265 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
266 DA7219_DIG_ROUTING_DAC);
267 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
268 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
269 DA7219_DAC_FILTERS5);
270 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
271 DA7219_DAC_FILTERS1);
272 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
273 DA7219_HP_R_GAIN);
274 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
275 DA7219_DAC_R_GAIN);
276 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
277 DA7219_TONE_GEN_ON_PER);
278 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
279 DA7219_TONE_GEN_FREQ1_U);
280 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
281 DA7219_TONE_GEN_CFG2);
282
283 regcache_cache_bypass(da7219->regmap, false);
284
285 /* Disable HPTest block */
286 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
287 DA7219_HPTEST_EN_MASK, 0);
288
289 /*
290 * If we're running from the internal oscillator then give audio paths
291 * time to settle before allowing headphones to be driven as required.
292 */
293 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
294 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
295
296 /* Restore gain ramping rate */
297 snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
298
299 /* Drive Headphones/lineout */
300 snd_soc_update_bits(codec, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
301 DA7219_HP_L_AMP_OE_MASK);
302 snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
303 DA7219_HP_R_AMP_OE_MASK);
304
305 /* Remove MCLK, if previously enabled */
306 if (da7219->mclk)
307 clk_disable_unprepare(da7219->mclk);
308
309 mutex_unlock(&da7219->lock);
310 snd_soc_dapm_mutex_unlock(dapm);
311
312 /*
313 * Only send report if jack hasn't been removed during process,
314 * otherwise it's invalid and we drop it.
315 */
316 if (da7219_aad->jack_inserted)
317 snd_soc_jack_report(da7219_aad->jack, report,
318 SND_JACK_HEADSET | SND_JACK_LINEOUT);
319 }
320
321
322 /*
323 * IRQ
324 */
325
326 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
327 {
328 struct da7219_aad_priv *da7219_aad = data;
329 struct snd_soc_codec *codec = da7219_aad->codec;
330 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
331 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
332 u8 events[DA7219_AAD_IRQ_REG_MAX];
333 u8 statusa;
334 int i, report = 0, mask = 0;
335
336 /* Read current IRQ events */
337 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
338 events, DA7219_AAD_IRQ_REG_MAX);
339
340 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
341 return IRQ_NONE;
342
343 /* Read status register for jack insertion & type status */
344 statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
345
346 /* Clear events */
347 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
348 events, DA7219_AAD_IRQ_REG_MAX);
349
350 dev_dbg(codec->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
351 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
352 statusa);
353
354 if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
355 /* Jack Insertion */
356 if (events[DA7219_AAD_IRQ_REG_A] &
357 DA7219_E_JACK_INSERTED_MASK) {
358 report |= SND_JACK_MECHANICAL;
359 mask |= SND_JACK_MECHANICAL;
360 da7219_aad->jack_inserted = true;
361 }
362
363 /* Jack type detection */
364 if (events[DA7219_AAD_IRQ_REG_A] &
365 DA7219_E_JACK_DETECT_COMPLETE_MASK) {
366 /*
367 * If 4-pole, then enable button detection, else perform
368 * HP impedance test to determine output type to report.
369 *
370 * We schedule work here as the tasks themselves can
371 * take time to complete, and in particular for hptest
372 * we want to be able to check if the jack was removed
373 * during the procedure as this will invalidate the
374 * result. By doing this as work, the IRQ thread can
375 * handle a removal, and we can check at the end of
376 * hptest if we have a valid result or not.
377 */
378 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
379 report |= SND_JACK_HEADSET;
380 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
381 schedule_work(&da7219_aad->btn_det_work);
382 } else {
383 schedule_work(&da7219_aad->hptest_work);
384 }
385 }
386
387 /* Button support for 4-pole jack */
388 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
389 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
390 /* Button Press */
391 if (events[DA7219_AAD_IRQ_REG_B] &
392 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
393 report |= SND_JACK_BTN_0 >> i;
394 mask |= SND_JACK_BTN_0 >> i;
395 }
396 }
397 snd_soc_jack_report(da7219_aad->jack, report, mask);
398
399 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
400 /* Button Release */
401 if (events[DA7219_AAD_IRQ_REG_B] &
402 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
403 report &= ~(SND_JACK_BTN_0 >> i);
404 mask |= SND_JACK_BTN_0 >> i;
405 }
406 }
407 }
408 } else {
409 /* Jack removal */
410 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
411 report = 0;
412 mask |= DA7219_AAD_REPORT_ALL_MASK;
413 da7219_aad->jack_inserted = false;
414
415 /* Un-drive headphones/lineout */
416 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
417 DA7219_HP_R_AMP_OE_MASK, 0);
418 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
419 DA7219_HP_L_AMP_OE_MASK, 0);
420
421 /* Ensure button detection disabled */
422 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
423 DA7219_BUTTON_CONFIG_MASK, 0);
424
425 /* Disable mic bias */
426 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
427 snd_soc_dapm_sync(dapm);
428
429 /* Cancel any pending work */
430 cancel_work_sync(&da7219_aad->btn_det_work);
431 cancel_work_sync(&da7219_aad->hptest_work);
432 }
433 }
434
435 snd_soc_jack_report(da7219_aad->jack, report, mask);
436
437 return IRQ_HANDLED;
438 }
439
440 /*
441 * DT/ACPI to pdata conversion
442 */
443
444 static enum da7219_aad_micbias_pulse_lvl
445 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_codec *codec, u32 val)
446 {
447 switch (val) {
448 case 2800:
449 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
450 case 2900:
451 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
452 default:
453 dev_warn(codec->dev, "Invalid micbias pulse level");
454 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
455 }
456 }
457
458 static enum da7219_aad_btn_cfg
459 da7219_aad_fw_btn_cfg(struct snd_soc_codec *codec, u32 val)
460 {
461 switch (val) {
462 case 2:
463 return DA7219_AAD_BTN_CFG_2MS;
464 case 5:
465 return DA7219_AAD_BTN_CFG_5MS;
466 case 10:
467 return DA7219_AAD_BTN_CFG_10MS;
468 case 50:
469 return DA7219_AAD_BTN_CFG_50MS;
470 case 100:
471 return DA7219_AAD_BTN_CFG_100MS;
472 case 200:
473 return DA7219_AAD_BTN_CFG_200MS;
474 case 500:
475 return DA7219_AAD_BTN_CFG_500MS;
476 default:
477 dev_warn(codec->dev, "Invalid button config");
478 return DA7219_AAD_BTN_CFG_10MS;
479 }
480 }
481
482 static enum da7219_aad_mic_det_thr
483 da7219_aad_fw_mic_det_thr(struct snd_soc_codec *codec, u32 val)
484 {
485 switch (val) {
486 case 200:
487 return DA7219_AAD_MIC_DET_THR_200_OHMS;
488 case 500:
489 return DA7219_AAD_MIC_DET_THR_500_OHMS;
490 case 750:
491 return DA7219_AAD_MIC_DET_THR_750_OHMS;
492 case 1000:
493 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
494 default:
495 dev_warn(codec->dev, "Invalid mic detect threshold");
496 return DA7219_AAD_MIC_DET_THR_500_OHMS;
497 }
498 }
499
500 static enum da7219_aad_jack_ins_deb
501 da7219_aad_fw_jack_ins_deb(struct snd_soc_codec *codec, u32 val)
502 {
503 switch (val) {
504 case 5:
505 return DA7219_AAD_JACK_INS_DEB_5MS;
506 case 10:
507 return DA7219_AAD_JACK_INS_DEB_10MS;
508 case 20:
509 return DA7219_AAD_JACK_INS_DEB_20MS;
510 case 50:
511 return DA7219_AAD_JACK_INS_DEB_50MS;
512 case 100:
513 return DA7219_AAD_JACK_INS_DEB_100MS;
514 case 200:
515 return DA7219_AAD_JACK_INS_DEB_200MS;
516 case 500:
517 return DA7219_AAD_JACK_INS_DEB_500MS;
518 case 1000:
519 return DA7219_AAD_JACK_INS_DEB_1S;
520 default:
521 dev_warn(codec->dev, "Invalid jack insert debounce");
522 return DA7219_AAD_JACK_INS_DEB_20MS;
523 }
524 }
525
526 static enum da7219_aad_jack_det_rate
527 da7219_aad_fw_jack_det_rate(struct snd_soc_codec *codec, const char *str)
528 {
529 if (!strcmp(str, "32ms_64ms")) {
530 return DA7219_AAD_JACK_DET_RATE_32_64MS;
531 } else if (!strcmp(str, "64ms_128ms")) {
532 return DA7219_AAD_JACK_DET_RATE_64_128MS;
533 } else if (!strcmp(str, "128ms_256ms")) {
534 return DA7219_AAD_JACK_DET_RATE_128_256MS;
535 } else if (!strcmp(str, "256ms_512ms")) {
536 return DA7219_AAD_JACK_DET_RATE_256_512MS;
537 } else {
538 dev_warn(codec->dev, "Invalid jack detect rate");
539 return DA7219_AAD_JACK_DET_RATE_256_512MS;
540 }
541 }
542
543 static enum da7219_aad_jack_rem_deb
544 da7219_aad_fw_jack_rem_deb(struct snd_soc_codec *codec, u32 val)
545 {
546 switch (val) {
547 case 1:
548 return DA7219_AAD_JACK_REM_DEB_1MS;
549 case 5:
550 return DA7219_AAD_JACK_REM_DEB_5MS;
551 case 10:
552 return DA7219_AAD_JACK_REM_DEB_10MS;
553 case 20:
554 return DA7219_AAD_JACK_REM_DEB_20MS;
555 default:
556 dev_warn(codec->dev, "Invalid jack removal debounce");
557 return DA7219_AAD_JACK_REM_DEB_1MS;
558 }
559 }
560
561 static enum da7219_aad_btn_avg
562 da7219_aad_fw_btn_avg(struct snd_soc_codec *codec, u32 val)
563 {
564 switch (val) {
565 case 1:
566 return DA7219_AAD_BTN_AVG_1;
567 case 2:
568 return DA7219_AAD_BTN_AVG_2;
569 case 4:
570 return DA7219_AAD_BTN_AVG_4;
571 case 8:
572 return DA7219_AAD_BTN_AVG_8;
573 default:
574 dev_warn(codec->dev, "Invalid button average value");
575 return DA7219_AAD_BTN_AVG_2;
576 }
577 }
578
579 static enum da7219_aad_adc_1bit_rpt
580 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_codec *codec, u32 val)
581 {
582 switch (val) {
583 case 1:
584 return DA7219_AAD_ADC_1BIT_RPT_1;
585 case 2:
586 return DA7219_AAD_ADC_1BIT_RPT_2;
587 case 4:
588 return DA7219_AAD_ADC_1BIT_RPT_4;
589 case 8:
590 return DA7219_AAD_ADC_1BIT_RPT_8;
591 default:
592 dev_warn(codec->dev, "Invalid ADC 1-bit repeat value");
593 return DA7219_AAD_ADC_1BIT_RPT_1;
594 }
595 }
596
597 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_codec *codec)
598 {
599 struct device *dev = codec->dev;
600 struct i2c_client *i2c = to_i2c_client(dev);
601 struct fwnode_handle *aad_np;
602 struct da7219_aad_pdata *aad_pdata;
603 const char *fw_str;
604 u32 fw_val32;
605
606 aad_np = device_get_named_child_node(dev, "da7219_aad");
607 if (!aad_np)
608 return NULL;
609
610 aad_pdata = devm_kzalloc(codec->dev, sizeof(*aad_pdata), GFP_KERNEL);
611 if (!aad_pdata)
612 return NULL;
613
614 aad_pdata->irq = i2c->irq;
615
616 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
617 &fw_val32) >= 0)
618 aad_pdata->micbias_pulse_lvl =
619 da7219_aad_fw_micbias_pulse_lvl(codec, fw_val32);
620 else
621 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
622
623 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
624 &fw_val32) >= 0)
625 aad_pdata->micbias_pulse_time = fw_val32;
626
627 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
628 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(codec, fw_val32);
629 else
630 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
631
632 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
633 aad_pdata->mic_det_thr =
634 da7219_aad_fw_mic_det_thr(codec, fw_val32);
635 else
636 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
637
638 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
639 aad_pdata->jack_ins_deb =
640 da7219_aad_fw_jack_ins_deb(codec, fw_val32);
641 else
642 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
643
644 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
645 aad_pdata->jack_det_rate =
646 da7219_aad_fw_jack_det_rate(codec, fw_str);
647 else
648 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
649
650 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
651 aad_pdata->jack_rem_deb =
652 da7219_aad_fw_jack_rem_deb(codec, fw_val32);
653 else
654 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
655
656 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
657 aad_pdata->a_d_btn_thr = (u8) fw_val32;
658 else
659 aad_pdata->a_d_btn_thr = 0xA;
660
661 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
662 aad_pdata->d_b_btn_thr = (u8) fw_val32;
663 else
664 aad_pdata->d_b_btn_thr = 0x16;
665
666 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
667 aad_pdata->b_c_btn_thr = (u8) fw_val32;
668 else
669 aad_pdata->b_c_btn_thr = 0x21;
670
671 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
672 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
673 else
674 aad_pdata->c_mic_btn_thr = 0x3E;
675
676 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
677 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(codec, fw_val32);
678 else
679 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
680
681 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
682 aad_pdata->adc_1bit_rpt =
683 da7219_aad_fw_adc_1bit_rpt(codec, fw_val32);
684 else
685 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
686
687 return aad_pdata;
688 }
689
690 static void da7219_aad_handle_pdata(struct snd_soc_codec *codec)
691 {
692 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
693 struct da7219_aad_priv *da7219_aad = da7219->aad;
694 struct da7219_pdata *pdata = da7219->pdata;
695
696 if ((pdata) && (pdata->aad_pdata)) {
697 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
698 u8 cfg, mask;
699
700 da7219_aad->irq = aad_pdata->irq;
701
702 switch (aad_pdata->micbias_pulse_lvl) {
703 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
704 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
705 da7219_aad->micbias_pulse_lvl =
706 (aad_pdata->micbias_pulse_lvl <<
707 DA7219_MICBIAS1_LEVEL_SHIFT);
708 break;
709 default:
710 break;
711 }
712
713 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
714
715 switch (aad_pdata->btn_cfg) {
716 case DA7219_AAD_BTN_CFG_2MS:
717 case DA7219_AAD_BTN_CFG_5MS:
718 case DA7219_AAD_BTN_CFG_10MS:
719 case DA7219_AAD_BTN_CFG_50MS:
720 case DA7219_AAD_BTN_CFG_100MS:
721 case DA7219_AAD_BTN_CFG_200MS:
722 case DA7219_AAD_BTN_CFG_500MS:
723 da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
724 DA7219_BUTTON_CONFIG_SHIFT);
725 }
726
727 cfg = 0;
728 mask = 0;
729 switch (aad_pdata->mic_det_thr) {
730 case DA7219_AAD_MIC_DET_THR_200_OHMS:
731 case DA7219_AAD_MIC_DET_THR_500_OHMS:
732 case DA7219_AAD_MIC_DET_THR_750_OHMS:
733 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
734 cfg |= (aad_pdata->mic_det_thr <<
735 DA7219_MIC_DET_THRESH_SHIFT);
736 mask |= DA7219_MIC_DET_THRESH_MASK;
737 }
738 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, mask, cfg);
739
740 cfg = 0;
741 mask = 0;
742 switch (aad_pdata->jack_ins_deb) {
743 case DA7219_AAD_JACK_INS_DEB_5MS:
744 case DA7219_AAD_JACK_INS_DEB_10MS:
745 case DA7219_AAD_JACK_INS_DEB_20MS:
746 case DA7219_AAD_JACK_INS_DEB_50MS:
747 case DA7219_AAD_JACK_INS_DEB_100MS:
748 case DA7219_AAD_JACK_INS_DEB_200MS:
749 case DA7219_AAD_JACK_INS_DEB_500MS:
750 case DA7219_AAD_JACK_INS_DEB_1S:
751 cfg |= (aad_pdata->jack_ins_deb <<
752 DA7219_JACKDET_DEBOUNCE_SHIFT);
753 mask |= DA7219_JACKDET_DEBOUNCE_MASK;
754 }
755 switch (aad_pdata->jack_det_rate) {
756 case DA7219_AAD_JACK_DET_RATE_32_64MS:
757 case DA7219_AAD_JACK_DET_RATE_64_128MS:
758 case DA7219_AAD_JACK_DET_RATE_128_256MS:
759 case DA7219_AAD_JACK_DET_RATE_256_512MS:
760 cfg |= (aad_pdata->jack_det_rate <<
761 DA7219_JACK_DETECT_RATE_SHIFT);
762 mask |= DA7219_JACK_DETECT_RATE_MASK;
763 }
764 switch (aad_pdata->jack_rem_deb) {
765 case DA7219_AAD_JACK_REM_DEB_1MS:
766 case DA7219_AAD_JACK_REM_DEB_5MS:
767 case DA7219_AAD_JACK_REM_DEB_10MS:
768 case DA7219_AAD_JACK_REM_DEB_20MS:
769 cfg |= (aad_pdata->jack_rem_deb <<
770 DA7219_JACKDET_REM_DEB_SHIFT);
771 mask |= DA7219_JACKDET_REM_DEB_MASK;
772 }
773 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_2, mask, cfg);
774
775 snd_soc_write(codec, DA7219_ACCDET_CONFIG_3,
776 aad_pdata->a_d_btn_thr);
777 snd_soc_write(codec, DA7219_ACCDET_CONFIG_4,
778 aad_pdata->d_b_btn_thr);
779 snd_soc_write(codec, DA7219_ACCDET_CONFIG_5,
780 aad_pdata->b_c_btn_thr);
781 snd_soc_write(codec, DA7219_ACCDET_CONFIG_6,
782 aad_pdata->c_mic_btn_thr);
783
784 cfg = 0;
785 mask = 0;
786 switch (aad_pdata->btn_avg) {
787 case DA7219_AAD_BTN_AVG_1:
788 case DA7219_AAD_BTN_AVG_2:
789 case DA7219_AAD_BTN_AVG_4:
790 case DA7219_AAD_BTN_AVG_8:
791 cfg |= (aad_pdata->btn_avg <<
792 DA7219_BUTTON_AVERAGE_SHIFT);
793 mask |= DA7219_BUTTON_AVERAGE_MASK;
794 }
795 switch (aad_pdata->adc_1bit_rpt) {
796 case DA7219_AAD_ADC_1BIT_RPT_1:
797 case DA7219_AAD_ADC_1BIT_RPT_2:
798 case DA7219_AAD_ADC_1BIT_RPT_4:
799 case DA7219_AAD_ADC_1BIT_RPT_8:
800 cfg |= (aad_pdata->adc_1bit_rpt <<
801 DA7219_ADC_1_BIT_REPEAT_SHIFT);
802 mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
803 }
804 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_7, mask, cfg);
805 }
806 }
807
808
809 /*
810 * Suspend/Resume
811 */
812
813 void da7219_aad_suspend(struct snd_soc_codec *codec)
814 {
815 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
816 struct da7219_aad_priv *da7219_aad = da7219->aad;
817 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
818 u8 micbias_ctrl;
819
820 if (da7219_aad->jack) {
821 /* Disable jack detection during suspend */
822 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
823 DA7219_ACCDET_EN_MASK, 0);
824
825 /*
826 * If we have a 4-pole jack inserted, then micbias will be
827 * enabled. We can disable micbias here, and keep a note to
828 * re-enable it on resume. If jack removal occurred during
829 * suspend then this will be dealt with through the IRQ handler.
830 */
831 if (da7219_aad->jack_inserted) {
832 micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
833 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
834 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
835 snd_soc_dapm_sync(dapm);
836 da7219_aad->micbias_resume_enable = true;
837 }
838 }
839 }
840 }
841
842 void da7219_aad_resume(struct snd_soc_codec *codec)
843 {
844 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
845 struct da7219_aad_priv *da7219_aad = da7219->aad;
846 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
847
848 if (da7219_aad->jack) {
849 /* Re-enable micbias if previously enabled for 4-pole jack */
850 if (da7219_aad->jack_inserted &&
851 da7219_aad->micbias_resume_enable) {
852 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
853 snd_soc_dapm_sync(dapm);
854 da7219_aad->micbias_resume_enable = false;
855 }
856
857 /* Re-enable jack detection */
858 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
859 DA7219_ACCDET_EN_MASK,
860 DA7219_ACCDET_EN_MASK);
861 }
862 }
863
864
865 /*
866 * Init/Exit
867 */
868
869 int da7219_aad_init(struct snd_soc_codec *codec)
870 {
871 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
872 struct da7219_aad_priv *da7219_aad;
873 u8 mask[DA7219_AAD_IRQ_REG_MAX];
874 int ret;
875
876 da7219_aad = devm_kzalloc(codec->dev, sizeof(*da7219_aad), GFP_KERNEL);
877 if (!da7219_aad)
878 return -ENOMEM;
879
880 da7219->aad = da7219_aad;
881 da7219_aad->codec = codec;
882
883 /* Handle any DT/ACPI/platform data */
884 if (da7219->pdata && !da7219->pdata->aad_pdata)
885 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(codec);
886
887 da7219_aad_handle_pdata(codec);
888
889 /* Disable button detection */
890 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
891 DA7219_BUTTON_CONFIG_MASK, 0);
892
893 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
894 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
895
896 ret = request_threaded_irq(da7219_aad->irq, NULL,
897 da7219_aad_irq_thread,
898 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
899 "da7219-aad", da7219_aad);
900 if (ret) {
901 dev_err(codec->dev, "Failed to request IRQ: %d\n", ret);
902 return ret;
903 }
904
905 /* Unmask AAD IRQs */
906 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
907 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
908 &mask, DA7219_AAD_IRQ_REG_MAX);
909
910 return 0;
911 }
912 EXPORT_SYMBOL_GPL(da7219_aad_init);
913
914 void da7219_aad_exit(struct snd_soc_codec *codec)
915 {
916 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
917 struct da7219_aad_priv *da7219_aad = da7219->aad;
918 u8 mask[DA7219_AAD_IRQ_REG_MAX];
919
920 /* Mask off AAD IRQs */
921 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
922 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
923 mask, DA7219_AAD_IRQ_REG_MAX);
924
925 free_irq(da7219_aad->irq, da7219_aad);
926
927 cancel_work_sync(&da7219_aad->btn_det_work);
928 cancel_work_sync(&da7219_aad->hptest_work);
929 }
930 EXPORT_SYMBOL_GPL(da7219_aad_exit);
931
932 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
933 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
934 MODULE_LICENSE("GPL");
Linux with added FPC-III support