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Linux 4.19-rc7
[linux-2.6/btrfs-unstable.git] / sound / soc / codecs / da7219-aad.c
blob2c7d5088e6f2759aba90e469be2b3b8eb8b07dcb
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_component *component, struct snd_soc_jack *jack)
36 {
37 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
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_component_update_bits(component, 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_component *component = da7219_aad->component;
61 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
62 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
63 u8 statusa, micbias_ctrl;
64 bool micbias_up = false;
65 int retries = 0;
66
67 /* Drive headphones/lineout */
68 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
69 DA7219_HP_L_AMP_OE_MASK,
70 DA7219_HP_L_AMP_OE_MASK);
71 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
72 DA7219_HP_R_AMP_OE_MASK,
73 DA7219_HP_R_AMP_OE_MASK);
74
75 /* Make sure mic bias is up */
76 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
77 snd_soc_dapm_sync(dapm);
78
79 do {
80 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A);
81 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
82 micbias_up = true;
83 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
84 msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
85 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
86
87 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
88 dev_warn(component->dev, "Mic bias status check timed out");
89
90 da7219->micbias_on_event = true;
91
92 /*
93 * Mic bias pulse required to enable mic, must be done before enabling
94 * button detection to prevent erroneous button readings.
95 */
96 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
97 /* Pulse higher level voltage */
98 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL);
99 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL,
100 DA7219_MICBIAS1_LEVEL_MASK,
101 da7219_aad->micbias_pulse_lvl);
102 msleep(da7219_aad->micbias_pulse_time);
103 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl);
104
105 }
106
107 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
108 DA7219_BUTTON_CONFIG_MASK,
109 da7219_aad->btn_cfg);
110 }
111
112 static void da7219_aad_hptest_work(struct work_struct *work)
113 {
114 struct da7219_aad_priv *da7219_aad =
115 container_of(work, struct da7219_aad_priv, hptest_work);
116 struct snd_soc_component *component = da7219_aad->component;
117 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
118 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
119
120 u16 tonegen_freq_hptest;
121 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
122 int report = 0, ret = 0;
123
124 /* Lock DAPM, Kcontrols affected by this test and the PLL */
125 snd_soc_dapm_mutex_lock(dapm);
126 mutex_lock(&da7219->ctrl_lock);
127 mutex_lock(&da7219->pll_lock);
128
129 /* Ensure MCLK is available for HP test procedure */
130 if (da7219->mclk) {
131 ret = clk_prepare_enable(da7219->mclk);
132 if (ret) {
133 dev_err(component->dev, "Failed to enable mclk - %d\n", ret);
134 mutex_unlock(&da7219->pll_lock);
135 mutex_unlock(&da7219->ctrl_lock);
136 snd_soc_dapm_mutex_unlock(dapm);
137 return;
138 }
139 }
140
141 /*
142 * If MCLK not present, then we're using the internal oscillator and
143 * require different frequency settings to achieve the same result.
144 *
145 * If MCLK is present, but PLL is not enabled then we enable it here to
146 * ensure a consistent detection procedure.
147 */
148 pll_srm_sts = snd_soc_component_read32(component, DA7219_PLL_SRM_STS);
149 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
150 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
151
152 pll_ctrl = snd_soc_component_read32(component, DA7219_PLL_CTRL);
153 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
154 da7219_set_pll(component, DA7219_SYSCLK_PLL,
155 DA7219_PLL_FREQ_OUT_98304);
156 } else {
157 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
158 }
159
160 /* Ensure gain ramping at fastest rate */
161 gain_ramp_ctrl = snd_soc_component_read32(component, DA7219_GAIN_RAMP_CTRL);
162 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
163
164 /* Bypass cache so it saves current settings */
165 regcache_cache_bypass(da7219->regmap, true);
166
167 /* Make sure Tone Generator is disabled */
168 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
169
170 /* Enable HPTest block, 1KOhms check */
171 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
172 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
173 DA7219_HPTEST_EN_MASK |
174 DA7219_HPTEST_RES_SEL_1KOHMS);
175
176 /* Set gains to 0db */
177 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
178 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
179 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
180 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
181
182 /* Disable DAC filters, EQs and soft mute */
183 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
184 0);
185 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
186 0);
187 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5,
188 DA7219_DAC_SOFTMUTE_EN_MASK, 0);
189
190 /* Enable HP left & right paths */
191 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
192 DA7219_CP_EN_MASK);
193 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC,
194 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
195 DA7219_DAC_L_SRC_TONEGEN |
196 DA7219_DAC_R_SRC_TONEGEN);
197 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL,
198 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
199 DA7219_DAC_L_EN_MASK);
200 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL,
201 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
202 DA7219_DAC_R_EN_MASK);
203 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT,
204 DA7219_MIXOUT_L_MIX_SELECT_MASK,
205 DA7219_MIXOUT_L_MIX_SELECT_MASK);
206 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT,
207 DA7219_MIXOUT_R_MIX_SELECT_MASK,
208 DA7219_MIXOUT_R_MIX_SELECT_MASK);
209 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L,
210 DA7219_OUTFILT_ST_1L_SRC_MASK,
211 DA7219_DMIX_ST_SRC_OUTFILT1L);
212 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R,
213 DA7219_OUTFILT_ST_1R_SRC_MASK,
214 DA7219_DMIX_ST_SRC_OUTFILT1R);
215 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL,
216 DA7219_MIXOUT_L_AMP_EN_MASK,
217 DA7219_MIXOUT_L_AMP_EN_MASK);
218 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL,
219 DA7219_MIXOUT_R_AMP_EN_MASK,
220 DA7219_MIXOUT_R_AMP_EN_MASK);
221 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
222 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
223 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
224 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
225 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
226 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
227 msleep(DA7219_SETTLING_DELAY);
228 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
229 DA7219_HP_L_AMP_MUTE_EN_MASK |
230 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
231 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
232 DA7219_HP_R_AMP_MUTE_EN_MASK |
233 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
234
235 /*
236 * If we're running from the internal oscillator then give audio paths
237 * time to settle before running test.
238 */
239 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
240 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
241
242 /* Configure & start Tone Generator */
243 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
244 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
245 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
246 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2,
247 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
248 DA7219_SWG_SEL_SRAMP |
249 DA7219_TONE_GEN_GAIN_MINUS_15DB);
250 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
251
252 msleep(DA7219_AAD_HPTEST_PERIOD);
253
254 /* Grab comparator reading */
255 accdet_cfg8 = snd_soc_component_read32(component, DA7219_ACCDET_CONFIG_8);
256 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
257 report |= SND_JACK_HEADPHONE;
258 else
259 report |= SND_JACK_LINEOUT;
260
261 /* Stop tone generator */
262 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
263
264 msleep(DA7219_AAD_HPTEST_PERIOD);
265
266 /* Restore original settings from cache */
267 regcache_mark_dirty(da7219->regmap);
268 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
269 DA7219_HP_R_CTRL);
270 msleep(DA7219_SETTLING_DELAY);
271 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
272 DA7219_MIXOUT_R_CTRL);
273 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
274 DA7219_DROUTING_ST_OUTFILT_1R);
275 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
276 DA7219_MIXOUT_R_SELECT);
277 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
278 DA7219_DAC_R_CTRL);
279 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
280 DA7219_DIG_ROUTING_DAC);
281 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
282 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
283 DA7219_DAC_FILTERS5);
284 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
285 DA7219_DAC_FILTERS1);
286 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
287 DA7219_HP_R_GAIN);
288 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
289 DA7219_DAC_R_GAIN);
290 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
291 DA7219_TONE_GEN_ON_PER);
292 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
293 DA7219_TONE_GEN_FREQ1_U);
294 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
295 DA7219_TONE_GEN_CFG2);
296
297 regcache_cache_bypass(da7219->regmap, false);
298
299 /* Disable HPTest block */
300 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
301 DA7219_HPTEST_EN_MASK, 0);
302
303 /*
304 * If we're running from the internal oscillator then give audio paths
305 * time to settle before allowing headphones to be driven as required.
306 */
307 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
308 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
309
310 /* Restore gain ramping rate */
311 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
312
313 /* Drive Headphones/lineout */
314 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
315 DA7219_HP_L_AMP_OE_MASK);
316 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
317 DA7219_HP_R_AMP_OE_MASK);
318
319 /* Restore PLL to previous configuration, if re-configured */
320 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
321 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
322 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
323
324 /* Remove MCLK, if previously enabled */
325 if (da7219->mclk)
326 clk_disable_unprepare(da7219->mclk);
327
328 mutex_unlock(&da7219->pll_lock);
329 mutex_unlock(&da7219->ctrl_lock);
330 snd_soc_dapm_mutex_unlock(dapm);
331
332 /*
333 * Only send report if jack hasn't been removed during process,
334 * otherwise it's invalid and we drop it.
335 */
336 if (da7219_aad->jack_inserted)
337 snd_soc_jack_report(da7219_aad->jack, report,
338 SND_JACK_HEADSET | SND_JACK_LINEOUT);
339 }
340
341
342 /*
343 * IRQ
344 */
345
346 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
347 {
348 struct da7219_aad_priv *da7219_aad = data;
349 struct snd_soc_component *component = da7219_aad->component;
350 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
351 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
352 u8 events[DA7219_AAD_IRQ_REG_MAX];
353 u8 statusa;
354 int i, report = 0, mask = 0;
355
356 /* Read current IRQ events */
357 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
358 events, DA7219_AAD_IRQ_REG_MAX);
359
360 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
361 return IRQ_NONE;
362
363 /* Read status register for jack insertion & type status */
364 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A);
365
366 /* Clear events */
367 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
368 events, DA7219_AAD_IRQ_REG_MAX);
369
370 dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
371 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
372 statusa);
373
374 if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
375 /* Jack Insertion */
376 if (events[DA7219_AAD_IRQ_REG_A] &
377 DA7219_E_JACK_INSERTED_MASK) {
378 report |= SND_JACK_MECHANICAL;
379 mask |= SND_JACK_MECHANICAL;
380 da7219_aad->jack_inserted = true;
381 }
382
383 /* Jack type detection */
384 if (events[DA7219_AAD_IRQ_REG_A] &
385 DA7219_E_JACK_DETECT_COMPLETE_MASK) {
386 /*
387 * If 4-pole, then enable button detection, else perform
388 * HP impedance test to determine output type to report.
389 *
390 * We schedule work here as the tasks themselves can
391 * take time to complete, and in particular for hptest
392 * we want to be able to check if the jack was removed
393 * during the procedure as this will invalidate the
394 * result. By doing this as work, the IRQ thread can
395 * handle a removal, and we can check at the end of
396 * hptest if we have a valid result or not.
397 */
398 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
399 report |= SND_JACK_HEADSET;
400 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
401 schedule_work(&da7219_aad->btn_det_work);
402 } else {
403 schedule_work(&da7219_aad->hptest_work);
404 }
405 }
406
407 /* Button support for 4-pole jack */
408 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
409 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
410 /* Button Press */
411 if (events[DA7219_AAD_IRQ_REG_B] &
412 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
413 report |= SND_JACK_BTN_0 >> i;
414 mask |= SND_JACK_BTN_0 >> i;
415 }
416 }
417 snd_soc_jack_report(da7219_aad->jack, report, mask);
418
419 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
420 /* Button Release */
421 if (events[DA7219_AAD_IRQ_REG_B] &
422 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
423 report &= ~(SND_JACK_BTN_0 >> i);
424 mask |= SND_JACK_BTN_0 >> i;
425 }
426 }
427 }
428 } else {
429 /* Jack removal */
430 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
431 report = 0;
432 mask |= DA7219_AAD_REPORT_ALL_MASK;
433 da7219_aad->jack_inserted = false;
434
435 /* Un-drive headphones/lineout */
436 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
437 DA7219_HP_R_AMP_OE_MASK, 0);
438 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
439 DA7219_HP_L_AMP_OE_MASK, 0);
440
441 /* Ensure button detection disabled */
442 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
443 DA7219_BUTTON_CONFIG_MASK, 0);
444
445 da7219->micbias_on_event = false;
446
447 /* Disable mic bias */
448 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
449 snd_soc_dapm_sync(dapm);
450
451 /* Cancel any pending work */
452 cancel_work_sync(&da7219_aad->btn_det_work);
453 cancel_work_sync(&da7219_aad->hptest_work);
454 }
455 }
456
457 snd_soc_jack_report(da7219_aad->jack, report, mask);
458
459 return IRQ_HANDLED;
460 }
461
462 /*
463 * DT/ACPI to pdata conversion
464 */
465
466 static enum da7219_aad_micbias_pulse_lvl
467 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_component *component, u32 val)
468 {
469 switch (val) {
470 case 2800:
471 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
472 case 2900:
473 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
474 default:
475 dev_warn(component->dev, "Invalid micbias pulse level");
476 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
477 }
478 }
479
480 static enum da7219_aad_btn_cfg
481 da7219_aad_fw_btn_cfg(struct snd_soc_component *component, u32 val)
482 {
483 switch (val) {
484 case 2:
485 return DA7219_AAD_BTN_CFG_2MS;
486 case 5:
487 return DA7219_AAD_BTN_CFG_5MS;
488 case 10:
489 return DA7219_AAD_BTN_CFG_10MS;
490 case 50:
491 return DA7219_AAD_BTN_CFG_50MS;
492 case 100:
493 return DA7219_AAD_BTN_CFG_100MS;
494 case 200:
495 return DA7219_AAD_BTN_CFG_200MS;
496 case 500:
497 return DA7219_AAD_BTN_CFG_500MS;
498 default:
499 dev_warn(component->dev, "Invalid button config");
500 return DA7219_AAD_BTN_CFG_10MS;
501 }
502 }
503
504 static enum da7219_aad_mic_det_thr
505 da7219_aad_fw_mic_det_thr(struct snd_soc_component *component, u32 val)
506 {
507 switch (val) {
508 case 200:
509 return DA7219_AAD_MIC_DET_THR_200_OHMS;
510 case 500:
511 return DA7219_AAD_MIC_DET_THR_500_OHMS;
512 case 750:
513 return DA7219_AAD_MIC_DET_THR_750_OHMS;
514 case 1000:
515 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
516 default:
517 dev_warn(component->dev, "Invalid mic detect threshold");
518 return DA7219_AAD_MIC_DET_THR_500_OHMS;
519 }
520 }
521
522 static enum da7219_aad_jack_ins_deb
523 da7219_aad_fw_jack_ins_deb(struct snd_soc_component *component, u32 val)
524 {
525 switch (val) {
526 case 5:
527 return DA7219_AAD_JACK_INS_DEB_5MS;
528 case 10:
529 return DA7219_AAD_JACK_INS_DEB_10MS;
530 case 20:
531 return DA7219_AAD_JACK_INS_DEB_20MS;
532 case 50:
533 return DA7219_AAD_JACK_INS_DEB_50MS;
534 case 100:
535 return DA7219_AAD_JACK_INS_DEB_100MS;
536 case 200:
537 return DA7219_AAD_JACK_INS_DEB_200MS;
538 case 500:
539 return DA7219_AAD_JACK_INS_DEB_500MS;
540 case 1000:
541 return DA7219_AAD_JACK_INS_DEB_1S;
542 default:
543 dev_warn(component->dev, "Invalid jack insert debounce");
544 return DA7219_AAD_JACK_INS_DEB_20MS;
545 }
546 }
547
548 static enum da7219_aad_jack_det_rate
549 da7219_aad_fw_jack_det_rate(struct snd_soc_component *component, const char *str)
550 {
551 if (!strcmp(str, "32ms_64ms")) {
552 return DA7219_AAD_JACK_DET_RATE_32_64MS;
553 } else if (!strcmp(str, "64ms_128ms")) {
554 return DA7219_AAD_JACK_DET_RATE_64_128MS;
555 } else if (!strcmp(str, "128ms_256ms")) {
556 return DA7219_AAD_JACK_DET_RATE_128_256MS;
557 } else if (!strcmp(str, "256ms_512ms")) {
558 return DA7219_AAD_JACK_DET_RATE_256_512MS;
559 } else {
560 dev_warn(component->dev, "Invalid jack detect rate");
561 return DA7219_AAD_JACK_DET_RATE_256_512MS;
562 }
563 }
564
565 static enum da7219_aad_jack_rem_deb
566 da7219_aad_fw_jack_rem_deb(struct snd_soc_component *component, u32 val)
567 {
568 switch (val) {
569 case 1:
570 return DA7219_AAD_JACK_REM_DEB_1MS;
571 case 5:
572 return DA7219_AAD_JACK_REM_DEB_5MS;
573 case 10:
574 return DA7219_AAD_JACK_REM_DEB_10MS;
575 case 20:
576 return DA7219_AAD_JACK_REM_DEB_20MS;
577 default:
578 dev_warn(component->dev, "Invalid jack removal debounce");
579 return DA7219_AAD_JACK_REM_DEB_1MS;
580 }
581 }
582
583 static enum da7219_aad_btn_avg
584 da7219_aad_fw_btn_avg(struct snd_soc_component *component, u32 val)
585 {
586 switch (val) {
587 case 1:
588 return DA7219_AAD_BTN_AVG_1;
589 case 2:
590 return DA7219_AAD_BTN_AVG_2;
591 case 4:
592 return DA7219_AAD_BTN_AVG_4;
593 case 8:
594 return DA7219_AAD_BTN_AVG_8;
595 default:
596 dev_warn(component->dev, "Invalid button average value");
597 return DA7219_AAD_BTN_AVG_2;
598 }
599 }
600
601 static enum da7219_aad_adc_1bit_rpt
602 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_component *component, u32 val)
603 {
604 switch (val) {
605 case 1:
606 return DA7219_AAD_ADC_1BIT_RPT_1;
607 case 2:
608 return DA7219_AAD_ADC_1BIT_RPT_2;
609 case 4:
610 return DA7219_AAD_ADC_1BIT_RPT_4;
611 case 8:
612 return DA7219_AAD_ADC_1BIT_RPT_8;
613 default:
614 dev_warn(component->dev, "Invalid ADC 1-bit repeat value");
615 return DA7219_AAD_ADC_1BIT_RPT_1;
616 }
617 }
618
619 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_component *component)
620 {
621 struct device *dev = component->dev;
622 struct i2c_client *i2c = to_i2c_client(dev);
623 struct fwnode_handle *aad_np;
624 struct da7219_aad_pdata *aad_pdata;
625 const char *fw_str;
626 u32 fw_val32;
627
628 aad_np = device_get_named_child_node(dev, "da7219_aad");
629 if (!aad_np)
630 return NULL;
631
632 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
633 if (!aad_pdata)
634 return NULL;
635
636 aad_pdata->irq = i2c->irq;
637
638 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
639 &fw_val32) >= 0)
640 aad_pdata->micbias_pulse_lvl =
641 da7219_aad_fw_micbias_pulse_lvl(component, fw_val32);
642 else
643 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
644
645 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
646 &fw_val32) >= 0)
647 aad_pdata->micbias_pulse_time = fw_val32;
648
649 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
650 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(component, fw_val32);
651 else
652 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
653
654 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
655 aad_pdata->mic_det_thr =
656 da7219_aad_fw_mic_det_thr(component, fw_val32);
657 else
658 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
659
660 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
661 aad_pdata->jack_ins_deb =
662 da7219_aad_fw_jack_ins_deb(component, fw_val32);
663 else
664 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
665
666 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
667 aad_pdata->jack_det_rate =
668 da7219_aad_fw_jack_det_rate(component, fw_str);
669 else
670 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
671
672 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
673 aad_pdata->jack_rem_deb =
674 da7219_aad_fw_jack_rem_deb(component, fw_val32);
675 else
676 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
677
678 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
679 aad_pdata->a_d_btn_thr = (u8) fw_val32;
680 else
681 aad_pdata->a_d_btn_thr = 0xA;
682
683 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
684 aad_pdata->d_b_btn_thr = (u8) fw_val32;
685 else
686 aad_pdata->d_b_btn_thr = 0x16;
687
688 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
689 aad_pdata->b_c_btn_thr = (u8) fw_val32;
690 else
691 aad_pdata->b_c_btn_thr = 0x21;
692
693 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
694 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
695 else
696 aad_pdata->c_mic_btn_thr = 0x3E;
697
698 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
699 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(component, fw_val32);
700 else
701 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
702
703 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
704 aad_pdata->adc_1bit_rpt =
705 da7219_aad_fw_adc_1bit_rpt(component, fw_val32);
706 else
707 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
708
709 return aad_pdata;
710 }
711
712 static void da7219_aad_handle_pdata(struct snd_soc_component *component)
713 {
714 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
715 struct da7219_aad_priv *da7219_aad = da7219->aad;
716 struct da7219_pdata *pdata = da7219->pdata;
717
718 if ((pdata) && (pdata->aad_pdata)) {
719 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
720 u8 cfg, mask;
721
722 da7219_aad->irq = aad_pdata->irq;
723
724 switch (aad_pdata->micbias_pulse_lvl) {
725 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
726 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
727 da7219_aad->micbias_pulse_lvl =
728 (aad_pdata->micbias_pulse_lvl <<
729 DA7219_MICBIAS1_LEVEL_SHIFT);
730 break;
731 default:
732 break;
733 }
734
735 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
736
737 switch (aad_pdata->btn_cfg) {
738 case DA7219_AAD_BTN_CFG_2MS:
739 case DA7219_AAD_BTN_CFG_5MS:
740 case DA7219_AAD_BTN_CFG_10MS:
741 case DA7219_AAD_BTN_CFG_50MS:
742 case DA7219_AAD_BTN_CFG_100MS:
743 case DA7219_AAD_BTN_CFG_200MS:
744 case DA7219_AAD_BTN_CFG_500MS:
745 da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
746 DA7219_BUTTON_CONFIG_SHIFT);
747 }
748
749 cfg = 0;
750 mask = 0;
751 switch (aad_pdata->mic_det_thr) {
752 case DA7219_AAD_MIC_DET_THR_200_OHMS:
753 case DA7219_AAD_MIC_DET_THR_500_OHMS:
754 case DA7219_AAD_MIC_DET_THR_750_OHMS:
755 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
756 cfg |= (aad_pdata->mic_det_thr <<
757 DA7219_MIC_DET_THRESH_SHIFT);
758 mask |= DA7219_MIC_DET_THRESH_MASK;
759 }
760 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg);
761
762 cfg = 0;
763 mask = 0;
764 switch (aad_pdata->jack_ins_deb) {
765 case DA7219_AAD_JACK_INS_DEB_5MS:
766 case DA7219_AAD_JACK_INS_DEB_10MS:
767 case DA7219_AAD_JACK_INS_DEB_20MS:
768 case DA7219_AAD_JACK_INS_DEB_50MS:
769 case DA7219_AAD_JACK_INS_DEB_100MS:
770 case DA7219_AAD_JACK_INS_DEB_200MS:
771 case DA7219_AAD_JACK_INS_DEB_500MS:
772 case DA7219_AAD_JACK_INS_DEB_1S:
773 cfg |= (aad_pdata->jack_ins_deb <<
774 DA7219_JACKDET_DEBOUNCE_SHIFT);
775 mask |= DA7219_JACKDET_DEBOUNCE_MASK;
776 }
777 switch (aad_pdata->jack_det_rate) {
778 case DA7219_AAD_JACK_DET_RATE_32_64MS:
779 case DA7219_AAD_JACK_DET_RATE_64_128MS:
780 case DA7219_AAD_JACK_DET_RATE_128_256MS:
781 case DA7219_AAD_JACK_DET_RATE_256_512MS:
782 cfg |= (aad_pdata->jack_det_rate <<
783 DA7219_JACK_DETECT_RATE_SHIFT);
784 mask |= DA7219_JACK_DETECT_RATE_MASK;
785 }
786 switch (aad_pdata->jack_rem_deb) {
787 case DA7219_AAD_JACK_REM_DEB_1MS:
788 case DA7219_AAD_JACK_REM_DEB_5MS:
789 case DA7219_AAD_JACK_REM_DEB_10MS:
790 case DA7219_AAD_JACK_REM_DEB_20MS:
791 cfg |= (aad_pdata->jack_rem_deb <<
792 DA7219_JACKDET_REM_DEB_SHIFT);
793 mask |= DA7219_JACKDET_REM_DEB_MASK;
794 }
795 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg);
796
797 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3,
798 aad_pdata->a_d_btn_thr);
799 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4,
800 aad_pdata->d_b_btn_thr);
801 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5,
802 aad_pdata->b_c_btn_thr);
803 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6,
804 aad_pdata->c_mic_btn_thr);
805
806 cfg = 0;
807 mask = 0;
808 switch (aad_pdata->btn_avg) {
809 case DA7219_AAD_BTN_AVG_1:
810 case DA7219_AAD_BTN_AVG_2:
811 case DA7219_AAD_BTN_AVG_4:
812 case DA7219_AAD_BTN_AVG_8:
813 cfg |= (aad_pdata->btn_avg <<
814 DA7219_BUTTON_AVERAGE_SHIFT);
815 mask |= DA7219_BUTTON_AVERAGE_MASK;
816 }
817 switch (aad_pdata->adc_1bit_rpt) {
818 case DA7219_AAD_ADC_1BIT_RPT_1:
819 case DA7219_AAD_ADC_1BIT_RPT_2:
820 case DA7219_AAD_ADC_1BIT_RPT_4:
821 case DA7219_AAD_ADC_1BIT_RPT_8:
822 cfg |= (aad_pdata->adc_1bit_rpt <<
823 DA7219_ADC_1_BIT_REPEAT_SHIFT);
824 mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
825 }
826 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg);
827 }
828 }
829
830
831 /*
832 * Suspend/Resume
833 */
834
835 void da7219_aad_suspend(struct snd_soc_component *component)
836 {
837 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
838 struct da7219_aad_priv *da7219_aad = da7219->aad;
839 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
840 u8 micbias_ctrl;
841
842 if (da7219_aad->jack) {
843 /* Disable jack detection during suspend */
844 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
845 DA7219_ACCDET_EN_MASK, 0);
846
847 /*
848 * If we have a 4-pole jack inserted, then micbias will be
849 * enabled. We can disable micbias here, and keep a note to
850 * re-enable it on resume. If jack removal occurred during
851 * suspend then this will be dealt with through the IRQ handler.
852 */
853 if (da7219_aad->jack_inserted) {
854 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL);
855 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
856 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
857 snd_soc_dapm_sync(dapm);
858 da7219_aad->micbias_resume_enable = true;
859 }
860 }
861 }
862 }
863
864 void da7219_aad_resume(struct snd_soc_component *component)
865 {
866 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
867 struct da7219_aad_priv *da7219_aad = da7219->aad;
868 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
869
870 if (da7219_aad->jack) {
871 /* Re-enable micbias if previously enabled for 4-pole jack */
872 if (da7219_aad->jack_inserted &&
873 da7219_aad->micbias_resume_enable) {
874 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
875 snd_soc_dapm_sync(dapm);
876 da7219_aad->micbias_resume_enable = false;
877 }
878
879 /* Re-enable jack detection */
880 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
881 DA7219_ACCDET_EN_MASK,
882 DA7219_ACCDET_EN_MASK);
883 }
884 }
885
886
887 /*
888 * Init/Exit
889 */
890
891 int da7219_aad_init(struct snd_soc_component *component)
892 {
893 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
894 struct da7219_aad_priv *da7219_aad;
895 u8 mask[DA7219_AAD_IRQ_REG_MAX];
896 int ret;
897
898 da7219_aad = devm_kzalloc(component->dev, sizeof(*da7219_aad), GFP_KERNEL);
899 if (!da7219_aad)
900 return -ENOMEM;
901
902 da7219->aad = da7219_aad;
903 da7219_aad->component = component;
904
905 /* Handle any DT/ACPI/platform data */
906 if (da7219->pdata && !da7219->pdata->aad_pdata)
907 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(component);
908
909 da7219_aad_handle_pdata(component);
910
911 /* Disable button detection */
912 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
913 DA7219_BUTTON_CONFIG_MASK, 0);
914
915 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
916 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
917
918 ret = request_threaded_irq(da7219_aad->irq, NULL,
919 da7219_aad_irq_thread,
920 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
921 "da7219-aad", da7219_aad);
922 if (ret) {
923 dev_err(component->dev, "Failed to request IRQ: %d\n", ret);
924 return ret;
925 }
926
927 /* Unmask AAD IRQs */
928 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
929 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
930 &mask, DA7219_AAD_IRQ_REG_MAX);
931
932 return 0;
933 }
934 EXPORT_SYMBOL_GPL(da7219_aad_init);
935
936 void da7219_aad_exit(struct snd_soc_component *component)
937 {
938 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
939 struct da7219_aad_priv *da7219_aad = da7219->aad;
940 u8 mask[DA7219_AAD_IRQ_REG_MAX];
941
942 /* Mask off AAD IRQs */
943 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
944 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
945 mask, DA7219_AAD_IRQ_REG_MAX);
946
947 free_irq(da7219_aad->irq, da7219_aad);
948
949 cancel_work_sync(&da7219_aad->btn_det_work);
950 cancel_work_sync(&da7219_aad->hptest_work);
951 }
952 EXPORT_SYMBOL_GPL(da7219_aad_exit);
953
954 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
955 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
956 MODULE_LICENSE("GPL");
(deprecated) Btrfs devel tree