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btrfs: add missing initialization in btrfs_check_shared
[linux/fpc-iii.git] / sound / soc / codecs / da7219-aad.c
blob1d1d10dd92ae233635d0d95783f82d2a15eeabdd
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, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
119 int report = 0, ret = 0;
120
121 /* Lock DAPM, Kcontrols affected by this test and the PLL */
122 snd_soc_dapm_mutex_lock(dapm);
123 mutex_lock(&da7219->ctrl_lock);
124 mutex_lock(&da7219->pll_lock);
125
126 /* Ensure MCLK is available for HP test procedure */
127 if (da7219->mclk) {
128 ret = clk_prepare_enable(da7219->mclk);
129 if (ret) {
130 dev_err(codec->dev, "Failed to enable mclk - %d\n", ret);
131 mutex_unlock(&da7219->pll_lock);
132 mutex_unlock(&da7219->ctrl_lock);
133 snd_soc_dapm_mutex_unlock(dapm);
134 return;
135 }
136 }
137
138 /*
139 * If MCLK not present, then we're using the internal oscillator and
140 * require different frequency settings to achieve the same result.
141 *
142 * If MCLK is present, but PLL is not enabled then we enable it here to
143 * ensure a consistent detection procedure.
144 */
145 pll_srm_sts = snd_soc_read(codec, DA7219_PLL_SRM_STS);
146 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
147 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
148
149 pll_ctrl = snd_soc_read(codec, DA7219_PLL_CTRL);
150 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
151 da7219_set_pll(codec, DA7219_SYSCLK_PLL,
152 DA7219_PLL_FREQ_OUT_98304);
153 } else {
154 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
155 }
156
157 /* Ensure gain ramping at fastest rate */
158 gain_ramp_ctrl = snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL);
159 snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
160
161 /* Bypass cache so it saves current settings */
162 regcache_cache_bypass(da7219->regmap, true);
163
164 /* Make sure Tone Generator is disabled */
165 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
166
167 /* Enable HPTest block, 1KOhms check */
168 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
169 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
170 DA7219_HPTEST_EN_MASK |
171 DA7219_HPTEST_RES_SEL_1KOHMS);
172
173 /* Set gains to 0db */
174 snd_soc_write(codec, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
175 snd_soc_write(codec, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
176 snd_soc_write(codec, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
177 snd_soc_write(codec, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
178
179 /* Disable DAC filters, EQs and soft mute */
180 snd_soc_update_bits(codec, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
181 0);
182 snd_soc_update_bits(codec, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
183 0);
184 snd_soc_update_bits(codec, DA7219_DAC_FILTERS5,
185 DA7219_DAC_SOFTMUTE_EN_MASK, 0);
186
187 /* Enable HP left & right paths */
188 snd_soc_update_bits(codec, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
189 DA7219_CP_EN_MASK);
190 snd_soc_update_bits(codec, DA7219_DIG_ROUTING_DAC,
191 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
192 DA7219_DAC_L_SRC_TONEGEN |
193 DA7219_DAC_R_SRC_TONEGEN);
194 snd_soc_update_bits(codec, DA7219_DAC_L_CTRL,
195 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
196 DA7219_DAC_L_EN_MASK);
197 snd_soc_update_bits(codec, DA7219_DAC_R_CTRL,
198 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
199 DA7219_DAC_R_EN_MASK);
200 snd_soc_update_bits(codec, DA7219_MIXOUT_L_SELECT,
201 DA7219_MIXOUT_L_MIX_SELECT_MASK,
202 DA7219_MIXOUT_L_MIX_SELECT_MASK);
203 snd_soc_update_bits(codec, DA7219_MIXOUT_R_SELECT,
204 DA7219_MIXOUT_R_MIX_SELECT_MASK,
205 DA7219_MIXOUT_R_MIX_SELECT_MASK);
206 snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1L,
207 DA7219_OUTFILT_ST_1L_SRC_MASK,
208 DA7219_DMIX_ST_SRC_OUTFILT1L);
209 snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1R,
210 DA7219_OUTFILT_ST_1R_SRC_MASK,
211 DA7219_DMIX_ST_SRC_OUTFILT1R);
212 snd_soc_update_bits(codec, DA7219_MIXOUT_L_CTRL,
213 DA7219_MIXOUT_L_AMP_EN_MASK,
214 DA7219_MIXOUT_L_AMP_EN_MASK);
215 snd_soc_update_bits(codec, DA7219_MIXOUT_R_CTRL,
216 DA7219_MIXOUT_R_AMP_EN_MASK,
217 DA7219_MIXOUT_R_AMP_EN_MASK);
218 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
219 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
220 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
221 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
222 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
223 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
224 msleep(DA7219_SETTLING_DELAY);
225 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
226 DA7219_HP_L_AMP_MUTE_EN_MASK |
227 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
228 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
229 DA7219_HP_R_AMP_MUTE_EN_MASK |
230 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
231
232 /*
233 * If we're running from the internal oscillator then give audio paths
234 * time to settle before running test.
235 */
236 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
237 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
238
239 /* Configure & start Tone Generator */
240 snd_soc_write(codec, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
241 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
242 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
243 snd_soc_update_bits(codec, DA7219_TONE_GEN_CFG2,
244 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
245 DA7219_SWG_SEL_SRAMP |
246 DA7219_TONE_GEN_GAIN_MINUS_15DB);
247 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
248
249 msleep(DA7219_AAD_HPTEST_PERIOD);
250
251 /* Grab comparator reading */
252 accdet_cfg8 = snd_soc_read(codec, DA7219_ACCDET_CONFIG_8);
253 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
254 report |= SND_JACK_HEADPHONE;
255 else
256 report |= SND_JACK_LINEOUT;
257
258 /* Stop tone generator */
259 snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
260
261 msleep(DA7219_AAD_HPTEST_PERIOD);
262
263 /* Restore original settings from cache */
264 regcache_mark_dirty(da7219->regmap);
265 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
266 DA7219_HP_R_CTRL);
267 msleep(DA7219_SETTLING_DELAY);
268 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
269 DA7219_MIXOUT_R_CTRL);
270 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
271 DA7219_DROUTING_ST_OUTFILT_1R);
272 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
273 DA7219_MIXOUT_R_SELECT);
274 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
275 DA7219_DAC_R_CTRL);
276 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
277 DA7219_DIG_ROUTING_DAC);
278 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
279 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
280 DA7219_DAC_FILTERS5);
281 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
282 DA7219_DAC_FILTERS1);
283 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
284 DA7219_HP_R_GAIN);
285 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
286 DA7219_DAC_R_GAIN);
287 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
288 DA7219_TONE_GEN_ON_PER);
289 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
290 DA7219_TONE_GEN_FREQ1_U);
291 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
292 DA7219_TONE_GEN_CFG2);
293
294 regcache_cache_bypass(da7219->regmap, false);
295
296 /* Disable HPTest block */
297 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
298 DA7219_HPTEST_EN_MASK, 0);
299
300 /*
301 * If we're running from the internal oscillator then give audio paths
302 * time to settle before allowing headphones to be driven as required.
303 */
304 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
305 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
306
307 /* Restore gain ramping rate */
308 snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
309
310 /* Drive Headphones/lineout */
311 snd_soc_update_bits(codec, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
312 DA7219_HP_L_AMP_OE_MASK);
313 snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
314 DA7219_HP_R_AMP_OE_MASK);
315
316 /* Restore PLL to previous configuration, if re-configured */
317 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
318 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
319 da7219_set_pll(codec, DA7219_SYSCLK_MCLK, 0);
320
321 /* Remove MCLK, if previously enabled */
322 if (da7219->mclk)
323 clk_disable_unprepare(da7219->mclk);
324
325 mutex_unlock(&da7219->pll_lock);
326 mutex_unlock(&da7219->ctrl_lock);
327 snd_soc_dapm_mutex_unlock(dapm);
328
329 /*
330 * Only send report if jack hasn't been removed during process,
331 * otherwise it's invalid and we drop it.
332 */
333 if (da7219_aad->jack_inserted)
334 snd_soc_jack_report(da7219_aad->jack, report,
335 SND_JACK_HEADSET | SND_JACK_LINEOUT);
336 }
337
338
339 /*
340 * IRQ
341 */
342
343 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
344 {
345 struct da7219_aad_priv *da7219_aad = data;
346 struct snd_soc_codec *codec = da7219_aad->codec;
347 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
348 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
349 u8 events[DA7219_AAD_IRQ_REG_MAX];
350 u8 statusa;
351 int i, report = 0, mask = 0;
352
353 /* Read current IRQ events */
354 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
355 events, DA7219_AAD_IRQ_REG_MAX);
356
357 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
358 return IRQ_NONE;
359
360 /* Read status register for jack insertion & type status */
361 statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
362
363 /* Clear events */
364 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
365 events, DA7219_AAD_IRQ_REG_MAX);
366
367 dev_dbg(codec->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
368 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
369 statusa);
370
371 if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
372 /* Jack Insertion */
373 if (events[DA7219_AAD_IRQ_REG_A] &
374 DA7219_E_JACK_INSERTED_MASK) {
375 report |= SND_JACK_MECHANICAL;
376 mask |= SND_JACK_MECHANICAL;
377 da7219_aad->jack_inserted = true;
378 }
379
380 /* Jack type detection */
381 if (events[DA7219_AAD_IRQ_REG_A] &
382 DA7219_E_JACK_DETECT_COMPLETE_MASK) {
383 /*
384 * If 4-pole, then enable button detection, else perform
385 * HP impedance test to determine output type to report.
386 *
387 * We schedule work here as the tasks themselves can
388 * take time to complete, and in particular for hptest
389 * we want to be able to check if the jack was removed
390 * during the procedure as this will invalidate the
391 * result. By doing this as work, the IRQ thread can
392 * handle a removal, and we can check at the end of
393 * hptest if we have a valid result or not.
394 */
395 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
396 report |= SND_JACK_HEADSET;
397 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
398 schedule_work(&da7219_aad->btn_det_work);
399 } else {
400 schedule_work(&da7219_aad->hptest_work);
401 }
402 }
403
404 /* Button support for 4-pole jack */
405 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
406 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
407 /* Button Press */
408 if (events[DA7219_AAD_IRQ_REG_B] &
409 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
410 report |= SND_JACK_BTN_0 >> i;
411 mask |= SND_JACK_BTN_0 >> i;
412 }
413 }
414 snd_soc_jack_report(da7219_aad->jack, report, mask);
415
416 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
417 /* Button Release */
418 if (events[DA7219_AAD_IRQ_REG_B] &
419 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
420 report &= ~(SND_JACK_BTN_0 >> i);
421 mask |= SND_JACK_BTN_0 >> i;
422 }
423 }
424 }
425 } else {
426 /* Jack removal */
427 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
428 report = 0;
429 mask |= DA7219_AAD_REPORT_ALL_MASK;
430 da7219_aad->jack_inserted = false;
431
432 /* Un-drive headphones/lineout */
433 snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
434 DA7219_HP_R_AMP_OE_MASK, 0);
435 snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
436 DA7219_HP_L_AMP_OE_MASK, 0);
437
438 /* Ensure button detection disabled */
439 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
440 DA7219_BUTTON_CONFIG_MASK, 0);
441
442 /* Disable mic bias */
443 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
444 snd_soc_dapm_sync(dapm);
445
446 /* Cancel any pending work */
447 cancel_work_sync(&da7219_aad->btn_det_work);
448 cancel_work_sync(&da7219_aad->hptest_work);
449 }
450 }
451
452 snd_soc_jack_report(da7219_aad->jack, report, mask);
453
454 return IRQ_HANDLED;
455 }
456
457 /*
458 * DT/ACPI to pdata conversion
459 */
460
461 static enum da7219_aad_micbias_pulse_lvl
462 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_codec *codec, u32 val)
463 {
464 switch (val) {
465 case 2800:
466 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
467 case 2900:
468 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
469 default:
470 dev_warn(codec->dev, "Invalid micbias pulse level");
471 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
472 }
473 }
474
475 static enum da7219_aad_btn_cfg
476 da7219_aad_fw_btn_cfg(struct snd_soc_codec *codec, u32 val)
477 {
478 switch (val) {
479 case 2:
480 return DA7219_AAD_BTN_CFG_2MS;
481 case 5:
482 return DA7219_AAD_BTN_CFG_5MS;
483 case 10:
484 return DA7219_AAD_BTN_CFG_10MS;
485 case 50:
486 return DA7219_AAD_BTN_CFG_50MS;
487 case 100:
488 return DA7219_AAD_BTN_CFG_100MS;
489 case 200:
490 return DA7219_AAD_BTN_CFG_200MS;
491 case 500:
492 return DA7219_AAD_BTN_CFG_500MS;
493 default:
494 dev_warn(codec->dev, "Invalid button config");
495 return DA7219_AAD_BTN_CFG_10MS;
496 }
497 }
498
499 static enum da7219_aad_mic_det_thr
500 da7219_aad_fw_mic_det_thr(struct snd_soc_codec *codec, u32 val)
501 {
502 switch (val) {
503 case 200:
504 return DA7219_AAD_MIC_DET_THR_200_OHMS;
505 case 500:
506 return DA7219_AAD_MIC_DET_THR_500_OHMS;
507 case 750:
508 return DA7219_AAD_MIC_DET_THR_750_OHMS;
509 case 1000:
510 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
511 default:
512 dev_warn(codec->dev, "Invalid mic detect threshold");
513 return DA7219_AAD_MIC_DET_THR_500_OHMS;
514 }
515 }
516
517 static enum da7219_aad_jack_ins_deb
518 da7219_aad_fw_jack_ins_deb(struct snd_soc_codec *codec, u32 val)
519 {
520 switch (val) {
521 case 5:
522 return DA7219_AAD_JACK_INS_DEB_5MS;
523 case 10:
524 return DA7219_AAD_JACK_INS_DEB_10MS;
525 case 20:
526 return DA7219_AAD_JACK_INS_DEB_20MS;
527 case 50:
528 return DA7219_AAD_JACK_INS_DEB_50MS;
529 case 100:
530 return DA7219_AAD_JACK_INS_DEB_100MS;
531 case 200:
532 return DA7219_AAD_JACK_INS_DEB_200MS;
533 case 500:
534 return DA7219_AAD_JACK_INS_DEB_500MS;
535 case 1000:
536 return DA7219_AAD_JACK_INS_DEB_1S;
537 default:
538 dev_warn(codec->dev, "Invalid jack insert debounce");
539 return DA7219_AAD_JACK_INS_DEB_20MS;
540 }
541 }
542
543 static enum da7219_aad_jack_det_rate
544 da7219_aad_fw_jack_det_rate(struct snd_soc_codec *codec, const char *str)
545 {
546 if (!strcmp(str, "32ms_64ms")) {
547 return DA7219_AAD_JACK_DET_RATE_32_64MS;
548 } else if (!strcmp(str, "64ms_128ms")) {
549 return DA7219_AAD_JACK_DET_RATE_64_128MS;
550 } else if (!strcmp(str, "128ms_256ms")) {
551 return DA7219_AAD_JACK_DET_RATE_128_256MS;
552 } else if (!strcmp(str, "256ms_512ms")) {
553 return DA7219_AAD_JACK_DET_RATE_256_512MS;
554 } else {
555 dev_warn(codec->dev, "Invalid jack detect rate");
556 return DA7219_AAD_JACK_DET_RATE_256_512MS;
557 }
558 }
559
560 static enum da7219_aad_jack_rem_deb
561 da7219_aad_fw_jack_rem_deb(struct snd_soc_codec *codec, u32 val)
562 {
563 switch (val) {
564 case 1:
565 return DA7219_AAD_JACK_REM_DEB_1MS;
566 case 5:
567 return DA7219_AAD_JACK_REM_DEB_5MS;
568 case 10:
569 return DA7219_AAD_JACK_REM_DEB_10MS;
570 case 20:
571 return DA7219_AAD_JACK_REM_DEB_20MS;
572 default:
573 dev_warn(codec->dev, "Invalid jack removal debounce");
574 return DA7219_AAD_JACK_REM_DEB_1MS;
575 }
576 }
577
578 static enum da7219_aad_btn_avg
579 da7219_aad_fw_btn_avg(struct snd_soc_codec *codec, u32 val)
580 {
581 switch (val) {
582 case 1:
583 return DA7219_AAD_BTN_AVG_1;
584 case 2:
585 return DA7219_AAD_BTN_AVG_2;
586 case 4:
587 return DA7219_AAD_BTN_AVG_4;
588 case 8:
589 return DA7219_AAD_BTN_AVG_8;
590 default:
591 dev_warn(codec->dev, "Invalid button average value");
592 return DA7219_AAD_BTN_AVG_2;
593 }
594 }
595
596 static enum da7219_aad_adc_1bit_rpt
597 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_codec *codec, u32 val)
598 {
599 switch (val) {
600 case 1:
601 return DA7219_AAD_ADC_1BIT_RPT_1;
602 case 2:
603 return DA7219_AAD_ADC_1BIT_RPT_2;
604 case 4:
605 return DA7219_AAD_ADC_1BIT_RPT_4;
606 case 8:
607 return DA7219_AAD_ADC_1BIT_RPT_8;
608 default:
609 dev_warn(codec->dev, "Invalid ADC 1-bit repeat value");
610 return DA7219_AAD_ADC_1BIT_RPT_1;
611 }
612 }
613
614 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_codec *codec)
615 {
616 struct device *dev = codec->dev;
617 struct i2c_client *i2c = to_i2c_client(dev);
618 struct fwnode_handle *aad_np;
619 struct da7219_aad_pdata *aad_pdata;
620 const char *fw_str;
621 u32 fw_val32;
622
623 aad_np = device_get_named_child_node(dev, "da7219_aad");
624 if (!aad_np)
625 return NULL;
626
627 aad_pdata = devm_kzalloc(codec->dev, sizeof(*aad_pdata), GFP_KERNEL);
628 if (!aad_pdata)
629 return NULL;
630
631 aad_pdata->irq = i2c->irq;
632
633 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
634 &fw_val32) >= 0)
635 aad_pdata->micbias_pulse_lvl =
636 da7219_aad_fw_micbias_pulse_lvl(codec, fw_val32);
637 else
638 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
639
640 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
641 &fw_val32) >= 0)
642 aad_pdata->micbias_pulse_time = fw_val32;
643
644 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
645 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(codec, fw_val32);
646 else
647 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
648
649 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
650 aad_pdata->mic_det_thr =
651 da7219_aad_fw_mic_det_thr(codec, fw_val32);
652 else
653 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
654
655 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
656 aad_pdata->jack_ins_deb =
657 da7219_aad_fw_jack_ins_deb(codec, fw_val32);
658 else
659 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
660
661 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
662 aad_pdata->jack_det_rate =
663 da7219_aad_fw_jack_det_rate(codec, fw_str);
664 else
665 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
666
667 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
668 aad_pdata->jack_rem_deb =
669 da7219_aad_fw_jack_rem_deb(codec, fw_val32);
670 else
671 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
672
673 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
674 aad_pdata->a_d_btn_thr = (u8) fw_val32;
675 else
676 aad_pdata->a_d_btn_thr = 0xA;
677
678 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
679 aad_pdata->d_b_btn_thr = (u8) fw_val32;
680 else
681 aad_pdata->d_b_btn_thr = 0x16;
682
683 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
684 aad_pdata->b_c_btn_thr = (u8) fw_val32;
685 else
686 aad_pdata->b_c_btn_thr = 0x21;
687
688 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
689 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
690 else
691 aad_pdata->c_mic_btn_thr = 0x3E;
692
693 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
694 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(codec, fw_val32);
695 else
696 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
697
698 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
699 aad_pdata->adc_1bit_rpt =
700 da7219_aad_fw_adc_1bit_rpt(codec, fw_val32);
701 else
702 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
703
704 return aad_pdata;
705 }
706
707 static void da7219_aad_handle_pdata(struct snd_soc_codec *codec)
708 {
709 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
710 struct da7219_aad_priv *da7219_aad = da7219->aad;
711 struct da7219_pdata *pdata = da7219->pdata;
712
713 if ((pdata) && (pdata->aad_pdata)) {
714 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
715 u8 cfg, mask;
716
717 da7219_aad->irq = aad_pdata->irq;
718
719 switch (aad_pdata->micbias_pulse_lvl) {
720 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
721 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
722 da7219_aad->micbias_pulse_lvl =
723 (aad_pdata->micbias_pulse_lvl <<
724 DA7219_MICBIAS1_LEVEL_SHIFT);
725 break;
726 default:
727 break;
728 }
729
730 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
731
732 switch (aad_pdata->btn_cfg) {
733 case DA7219_AAD_BTN_CFG_2MS:
734 case DA7219_AAD_BTN_CFG_5MS:
735 case DA7219_AAD_BTN_CFG_10MS:
736 case DA7219_AAD_BTN_CFG_50MS:
737 case DA7219_AAD_BTN_CFG_100MS:
738 case DA7219_AAD_BTN_CFG_200MS:
739 case DA7219_AAD_BTN_CFG_500MS:
740 da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
741 DA7219_BUTTON_CONFIG_SHIFT);
742 }
743
744 cfg = 0;
745 mask = 0;
746 switch (aad_pdata->mic_det_thr) {
747 case DA7219_AAD_MIC_DET_THR_200_OHMS:
748 case DA7219_AAD_MIC_DET_THR_500_OHMS:
749 case DA7219_AAD_MIC_DET_THR_750_OHMS:
750 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
751 cfg |= (aad_pdata->mic_det_thr <<
752 DA7219_MIC_DET_THRESH_SHIFT);
753 mask |= DA7219_MIC_DET_THRESH_MASK;
754 }
755 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, mask, cfg);
756
757 cfg = 0;
758 mask = 0;
759 switch (aad_pdata->jack_ins_deb) {
760 case DA7219_AAD_JACK_INS_DEB_5MS:
761 case DA7219_AAD_JACK_INS_DEB_10MS:
762 case DA7219_AAD_JACK_INS_DEB_20MS:
763 case DA7219_AAD_JACK_INS_DEB_50MS:
764 case DA7219_AAD_JACK_INS_DEB_100MS:
765 case DA7219_AAD_JACK_INS_DEB_200MS:
766 case DA7219_AAD_JACK_INS_DEB_500MS:
767 case DA7219_AAD_JACK_INS_DEB_1S:
768 cfg |= (aad_pdata->jack_ins_deb <<
769 DA7219_JACKDET_DEBOUNCE_SHIFT);
770 mask |= DA7219_JACKDET_DEBOUNCE_MASK;
771 }
772 switch (aad_pdata->jack_det_rate) {
773 case DA7219_AAD_JACK_DET_RATE_32_64MS:
774 case DA7219_AAD_JACK_DET_RATE_64_128MS:
775 case DA7219_AAD_JACK_DET_RATE_128_256MS:
776 case DA7219_AAD_JACK_DET_RATE_256_512MS:
777 cfg |= (aad_pdata->jack_det_rate <<
778 DA7219_JACK_DETECT_RATE_SHIFT);
779 mask |= DA7219_JACK_DETECT_RATE_MASK;
780 }
781 switch (aad_pdata->jack_rem_deb) {
782 case DA7219_AAD_JACK_REM_DEB_1MS:
783 case DA7219_AAD_JACK_REM_DEB_5MS:
784 case DA7219_AAD_JACK_REM_DEB_10MS:
785 case DA7219_AAD_JACK_REM_DEB_20MS:
786 cfg |= (aad_pdata->jack_rem_deb <<
787 DA7219_JACKDET_REM_DEB_SHIFT);
788 mask |= DA7219_JACKDET_REM_DEB_MASK;
789 }
790 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_2, mask, cfg);
791
792 snd_soc_write(codec, DA7219_ACCDET_CONFIG_3,
793 aad_pdata->a_d_btn_thr);
794 snd_soc_write(codec, DA7219_ACCDET_CONFIG_4,
795 aad_pdata->d_b_btn_thr);
796 snd_soc_write(codec, DA7219_ACCDET_CONFIG_5,
797 aad_pdata->b_c_btn_thr);
798 snd_soc_write(codec, DA7219_ACCDET_CONFIG_6,
799 aad_pdata->c_mic_btn_thr);
800
801 cfg = 0;
802 mask = 0;
803 switch (aad_pdata->btn_avg) {
804 case DA7219_AAD_BTN_AVG_1:
805 case DA7219_AAD_BTN_AVG_2:
806 case DA7219_AAD_BTN_AVG_4:
807 case DA7219_AAD_BTN_AVG_8:
808 cfg |= (aad_pdata->btn_avg <<
809 DA7219_BUTTON_AVERAGE_SHIFT);
810 mask |= DA7219_BUTTON_AVERAGE_MASK;
811 }
812 switch (aad_pdata->adc_1bit_rpt) {
813 case DA7219_AAD_ADC_1BIT_RPT_1:
814 case DA7219_AAD_ADC_1BIT_RPT_2:
815 case DA7219_AAD_ADC_1BIT_RPT_4:
816 case DA7219_AAD_ADC_1BIT_RPT_8:
817 cfg |= (aad_pdata->adc_1bit_rpt <<
818 DA7219_ADC_1_BIT_REPEAT_SHIFT);
819 mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
820 }
821 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_7, mask, cfg);
822 }
823 }
824
825
826 /*
827 * Suspend/Resume
828 */
829
830 void da7219_aad_suspend(struct snd_soc_codec *codec)
831 {
832 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
833 struct da7219_aad_priv *da7219_aad = da7219->aad;
834 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
835 u8 micbias_ctrl;
836
837 if (da7219_aad->jack) {
838 /* Disable jack detection during suspend */
839 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
840 DA7219_ACCDET_EN_MASK, 0);
841
842 /*
843 * If we have a 4-pole jack inserted, then micbias will be
844 * enabled. We can disable micbias here, and keep a note to
845 * re-enable it on resume. If jack removal occurred during
846 * suspend then this will be dealt with through the IRQ handler.
847 */
848 if (da7219_aad->jack_inserted) {
849 micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
850 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
851 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
852 snd_soc_dapm_sync(dapm);
853 da7219_aad->micbias_resume_enable = true;
854 }
855 }
856 }
857 }
858
859 void da7219_aad_resume(struct snd_soc_codec *codec)
860 {
861 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
862 struct da7219_aad_priv *da7219_aad = da7219->aad;
863 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
864
865 if (da7219_aad->jack) {
866 /* Re-enable micbias if previously enabled for 4-pole jack */
867 if (da7219_aad->jack_inserted &&
868 da7219_aad->micbias_resume_enable) {
869 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
870 snd_soc_dapm_sync(dapm);
871 da7219_aad->micbias_resume_enable = false;
872 }
873
874 /* Re-enable jack detection */
875 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
876 DA7219_ACCDET_EN_MASK,
877 DA7219_ACCDET_EN_MASK);
878 }
879 }
880
881
882 /*
883 * Init/Exit
884 */
885
886 int da7219_aad_init(struct snd_soc_codec *codec)
887 {
888 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
889 struct da7219_aad_priv *da7219_aad;
890 u8 mask[DA7219_AAD_IRQ_REG_MAX];
891 int ret;
892
893 da7219_aad = devm_kzalloc(codec->dev, sizeof(*da7219_aad), GFP_KERNEL);
894 if (!da7219_aad)
895 return -ENOMEM;
896
897 da7219->aad = da7219_aad;
898 da7219_aad->codec = codec;
899
900 /* Handle any DT/ACPI/platform data */
901 if (da7219->pdata && !da7219->pdata->aad_pdata)
902 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(codec);
903
904 da7219_aad_handle_pdata(codec);
905
906 /* Disable button detection */
907 snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
908 DA7219_BUTTON_CONFIG_MASK, 0);
909
910 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
911 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
912
913 ret = request_threaded_irq(da7219_aad->irq, NULL,
914 da7219_aad_irq_thread,
915 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
916 "da7219-aad", da7219_aad);
917 if (ret) {
918 dev_err(codec->dev, "Failed to request IRQ: %d\n", ret);
919 return ret;
920 }
921
922 /* Unmask AAD IRQs */
923 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
924 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
925 &mask, DA7219_AAD_IRQ_REG_MAX);
926
927 return 0;
928 }
929 EXPORT_SYMBOL_GPL(da7219_aad_init);
930
931 void da7219_aad_exit(struct snd_soc_codec *codec)
932 {
933 struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
934 struct da7219_aad_priv *da7219_aad = da7219->aad;
935 u8 mask[DA7219_AAD_IRQ_REG_MAX];
936
937 /* Mask off AAD IRQs */
938 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
939 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
940 mask, DA7219_AAD_IRQ_REG_MAX);
941
942 free_irq(da7219_aad->irq, da7219_aad);
943
944 cancel_work_sync(&da7219_aad->btn_det_work);
945 cancel_work_sync(&da7219_aad->hptest_work);
946 }
947 EXPORT_SYMBOL_GPL(da7219_aad_exit);
948
949 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
950 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
951 MODULE_LICENSE("GPL");
Linux with added FPC-III support