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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / sound / soc / codecs / da7219-aad.c
blob4f2a96e9fd45badade06975bd38c5a7f8472ae4b
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
4 *
5 * Copyright (c) 2015 Dialog Semiconductor Ltd.
6 *
7 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/platform_device.h>
12 #include <linux/clk.h>
13 #include <linux/i2c.h>
14 #include <linux/property.h>
15 #include <linux/pm_wakeirq.h>
16 #include <linux/slab.h>
17 #include <linux/delay.h>
18 #include <linux/workqueue.h>
19 #include <sound/soc.h>
20 #include <sound/jack.h>
21 #include <sound/da7219.h>
22
23 #include "da7219.h"
24 #include "da7219-aad.h"
25
26
27 /*
28 * Detection control
29 */
30
31 void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack)
32 {
33 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
34
35 da7219->aad->jack = jack;
36 da7219->aad->jack_inserted = false;
37
38 /* Send an initial empty report */
39 snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
40
41 /* Enable/Disable jack detection */
42 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
43 DA7219_ACCDET_EN_MASK,
44 (jack ? DA7219_ACCDET_EN_MASK : 0));
45 }
46 EXPORT_SYMBOL_GPL(da7219_aad_jack_det);
47
48 /*
49 * Button/HPTest work
50 */
51
52 static void da7219_aad_btn_det_work(struct work_struct *work)
53 {
54 struct da7219_aad_priv *da7219_aad =
55 container_of(work, struct da7219_aad_priv, btn_det_work);
56 struct snd_soc_component *component = da7219_aad->component;
57 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
58 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
59 u8 statusa, micbias_ctrl;
60 bool micbias_up = false;
61 int retries = 0;
62
63 /* Drive headphones/lineout */
64 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
65 DA7219_HP_L_AMP_OE_MASK,
66 DA7219_HP_L_AMP_OE_MASK);
67 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
68 DA7219_HP_R_AMP_OE_MASK,
69 DA7219_HP_R_AMP_OE_MASK);
70
71 /* Make sure mic bias is up */
72 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
73 snd_soc_dapm_sync(dapm);
74
75 do {
76 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A);
77 if (statusa & DA7219_MICBIAS_UP_STS_MASK)
78 micbias_up = true;
79 else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
80 msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
81 } while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
82
83 if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
84 dev_warn(component->dev, "Mic bias status check timed out");
85
86 da7219->micbias_on_event = true;
87
88 /*
89 * Mic bias pulse required to enable mic, must be done before enabling
90 * button detection to prevent erroneous button readings.
91 */
92 if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
93 /* Pulse higher level voltage */
94 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL);
95 snd_soc_component_update_bits(component, DA7219_MICBIAS_CTRL,
96 DA7219_MICBIAS1_LEVEL_MASK,
97 da7219_aad->micbias_pulse_lvl);
98 msleep(da7219_aad->micbias_pulse_time);
99 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_ctrl);
100
101 }
102
103 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
104 DA7219_BUTTON_CONFIG_MASK,
105 da7219_aad->btn_cfg);
106 }
107
108 static void da7219_aad_hptest_work(struct work_struct *work)
109 {
110 struct da7219_aad_priv *da7219_aad =
111 container_of(work, struct da7219_aad_priv, hptest_work);
112 struct snd_soc_component *component = da7219_aad->component;
113 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
114 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
115
116 __le16 tonegen_freq_hptest;
117 u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
118 int report = 0, ret = 0;
119
120 /* Lock DAPM, Kcontrols affected by this test and the PLL */
121 snd_soc_dapm_mutex_lock(dapm);
122 mutex_lock(&da7219->ctrl_lock);
123 mutex_lock(&da7219->pll_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(component->dev, "Failed to enable mclk - %d\n", ret);
130 mutex_unlock(&da7219->pll_lock);
131 mutex_unlock(&da7219->ctrl_lock);
132 snd_soc_dapm_mutex_unlock(dapm);
133 return;
134 }
135 }
136
137 /*
138 * If MCLK not present, then we're using the internal oscillator and
139 * require different frequency settings to achieve the same result.
140 *
141 * If MCLK is present, but PLL is not enabled then we enable it here to
142 * ensure a consistent detection procedure.
143 */
144 pll_srm_sts = snd_soc_component_read32(component, DA7219_PLL_SRM_STS);
145 if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
146 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
147
148 pll_ctrl = snd_soc_component_read32(component, DA7219_PLL_CTRL);
149 if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
150 da7219_set_pll(component, DA7219_SYSCLK_PLL,
151 DA7219_PLL_FREQ_OUT_98304);
152 } else {
153 tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
154 }
155
156 /* Ensure gain ramping at fastest rate */
157 gain_ramp_ctrl = snd_soc_component_read32(component, DA7219_GAIN_RAMP_CTRL);
158 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
159
160 /* Bypass cache so it saves current settings */
161 regcache_cache_bypass(da7219->regmap, true);
162
163 /* Make sure Tone Generator is disabled */
164 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
165
166 /* Enable HPTest block, 1KOhms check */
167 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
168 DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
169 DA7219_HPTEST_EN_MASK |
170 DA7219_HPTEST_RES_SEL_1KOHMS);
171
172 /* Set gains to 0db */
173 snd_soc_component_write(component, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
174 snd_soc_component_write(component, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
175 snd_soc_component_write(component, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
176 snd_soc_component_write(component, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
177
178 /* Disable DAC filters, EQs and soft mute */
179 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
180 0);
181 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
182 0);
183 snd_soc_component_update_bits(component, DA7219_DAC_FILTERS5,
184 DA7219_DAC_SOFTMUTE_EN_MASK, 0);
185
186 /* Enable HP left & right paths */
187 snd_soc_component_update_bits(component, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
188 DA7219_CP_EN_MASK);
189 snd_soc_component_update_bits(component, DA7219_DIG_ROUTING_DAC,
190 DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
191 DA7219_DAC_L_SRC_TONEGEN |
192 DA7219_DAC_R_SRC_TONEGEN);
193 snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL,
194 DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
195 DA7219_DAC_L_EN_MASK);
196 snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL,
197 DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
198 DA7219_DAC_R_EN_MASK);
199 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_SELECT,
200 DA7219_MIXOUT_L_MIX_SELECT_MASK,
201 DA7219_MIXOUT_L_MIX_SELECT_MASK);
202 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_SELECT,
203 DA7219_MIXOUT_R_MIX_SELECT_MASK,
204 DA7219_MIXOUT_R_MIX_SELECT_MASK);
205 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1L,
206 DA7219_OUTFILT_ST_1L_SRC_MASK,
207 DA7219_DMIX_ST_SRC_OUTFILT1L);
208 snd_soc_component_update_bits(component, DA7219_DROUTING_ST_OUTFILT_1R,
209 DA7219_OUTFILT_ST_1R_SRC_MASK,
210 DA7219_DMIX_ST_SRC_OUTFILT1R);
211 snd_soc_component_update_bits(component, DA7219_MIXOUT_L_CTRL,
212 DA7219_MIXOUT_L_AMP_EN_MASK,
213 DA7219_MIXOUT_L_AMP_EN_MASK);
214 snd_soc_component_update_bits(component, DA7219_MIXOUT_R_CTRL,
215 DA7219_MIXOUT_R_AMP_EN_MASK,
216 DA7219_MIXOUT_R_AMP_EN_MASK);
217 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
218 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
219 DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
220 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
221 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
222 DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
223 msleep(DA7219_SETTLING_DELAY);
224 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
225 DA7219_HP_L_AMP_MUTE_EN_MASK |
226 DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
227 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
228 DA7219_HP_R_AMP_MUTE_EN_MASK |
229 DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
230
231 /*
232 * If we're running from the internal oscillator then give audio paths
233 * time to settle before running test.
234 */
235 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
236 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
237
238 /* Configure & start Tone Generator */
239 snd_soc_component_write(component, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
240 regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
241 &tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
242 snd_soc_component_update_bits(component, DA7219_TONE_GEN_CFG2,
243 DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
244 DA7219_SWG_SEL_SRAMP |
245 DA7219_TONE_GEN_GAIN_MINUS_15DB);
246 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
247
248 msleep(DA7219_AAD_HPTEST_PERIOD);
249
250 /* Grab comparator reading */
251 accdet_cfg8 = snd_soc_component_read32(component, DA7219_ACCDET_CONFIG_8);
252 if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
253 report |= SND_JACK_HEADPHONE;
254 else
255 report |= SND_JACK_LINEOUT;
256
257 /* Stop tone generator */
258 snd_soc_component_write(component, DA7219_TONE_GEN_CFG1, 0);
259
260 msleep(DA7219_AAD_HPTEST_PERIOD);
261
262 /* Restore original settings from cache */
263 regcache_mark_dirty(da7219->regmap);
264 regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
265 DA7219_HP_R_CTRL);
266 msleep(DA7219_SETTLING_DELAY);
267 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
268 DA7219_MIXOUT_R_CTRL);
269 regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
270 DA7219_DROUTING_ST_OUTFILT_1R);
271 regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
272 DA7219_MIXOUT_R_SELECT);
273 regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
274 DA7219_DAC_R_CTRL);
275 regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
276 DA7219_DIG_ROUTING_DAC);
277 regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
278 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
279 DA7219_DAC_FILTERS5);
280 regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
281 DA7219_DAC_FILTERS1);
282 regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
283 DA7219_HP_R_GAIN);
284 regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
285 DA7219_DAC_R_GAIN);
286 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
287 DA7219_TONE_GEN_ON_PER);
288 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
289 DA7219_TONE_GEN_FREQ1_U);
290 regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
291 DA7219_TONE_GEN_CFG2);
292
293 regcache_cache_bypass(da7219->regmap, false);
294
295 /* Disable HPTest block */
296 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_8,
297 DA7219_HPTEST_EN_MASK, 0);
298
299 /*
300 * If we're running from the internal oscillator then give audio paths
301 * time to settle before allowing headphones to be driven as required.
302 */
303 if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
304 msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
305
306 /* Restore gain ramping rate */
307 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
308
309 /* Drive Headphones/lineout */
310 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
311 DA7219_HP_L_AMP_OE_MASK);
312 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
313 DA7219_HP_R_AMP_OE_MASK);
314
315 /* Restore PLL to previous configuration, if re-configured */
316 if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
317 ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
318 da7219_set_pll(component, DA7219_SYSCLK_MCLK, 0);
319
320 /* Remove MCLK, if previously enabled */
321 if (da7219->mclk)
322 clk_disable_unprepare(da7219->mclk);
323
324 mutex_unlock(&da7219->pll_lock);
325 mutex_unlock(&da7219->ctrl_lock);
326 snd_soc_dapm_mutex_unlock(dapm);
327
328 /*
329 * Only send report if jack hasn't been removed during process,
330 * otherwise it's invalid and we drop it.
331 */
332 if (da7219_aad->jack_inserted)
333 snd_soc_jack_report(da7219_aad->jack, report,
334 SND_JACK_HEADSET | SND_JACK_LINEOUT);
335 }
336
337
338 /*
339 * IRQ
340 */
341
342 static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
343 {
344 struct da7219_aad_priv *da7219_aad = data;
345 struct snd_soc_component *component = da7219_aad->component;
346 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
347 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
348 u8 events[DA7219_AAD_IRQ_REG_MAX];
349 u8 statusa;
350 int i, report = 0, mask = 0;
351
352 /* Read current IRQ events */
353 regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
354 events, DA7219_AAD_IRQ_REG_MAX);
355
356 if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
357 return IRQ_NONE;
358
359 /* Read status register for jack insertion & type status */
360 statusa = snd_soc_component_read32(component, DA7219_ACCDET_STATUS_A);
361
362 /* Clear events */
363 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
364 events, DA7219_AAD_IRQ_REG_MAX);
365
366 dev_dbg(component->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
367 events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
368 statusa);
369
370 if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
371 /* Jack Insertion */
372 if (events[DA7219_AAD_IRQ_REG_A] &
373 DA7219_E_JACK_INSERTED_MASK) {
374 report |= SND_JACK_MECHANICAL;
375 mask |= SND_JACK_MECHANICAL;
376 da7219_aad->jack_inserted = true;
377 }
378
379 /* Jack type detection */
380 if (events[DA7219_AAD_IRQ_REG_A] &
381 DA7219_E_JACK_DETECT_COMPLETE_MASK) {
382 /*
383 * If 4-pole, then enable button detection, else perform
384 * HP impedance test to determine output type to report.
385 *
386 * We schedule work here as the tasks themselves can
387 * take time to complete, and in particular for hptest
388 * we want to be able to check if the jack was removed
389 * during the procedure as this will invalidate the
390 * result. By doing this as work, the IRQ thread can
391 * handle a removal, and we can check at the end of
392 * hptest if we have a valid result or not.
393 */
394 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
395 report |= SND_JACK_HEADSET;
396 mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
397 schedule_work(&da7219_aad->btn_det_work);
398 } else {
399 schedule_work(&da7219_aad->hptest_work);
400 }
401 }
402
403 /* Button support for 4-pole jack */
404 if (statusa & DA7219_JACK_TYPE_STS_MASK) {
405 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
406 /* Button Press */
407 if (events[DA7219_AAD_IRQ_REG_B] &
408 (DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
409 report |= SND_JACK_BTN_0 >> i;
410 mask |= SND_JACK_BTN_0 >> i;
411 }
412 }
413 snd_soc_jack_report(da7219_aad->jack, report, mask);
414
415 for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
416 /* Button Release */
417 if (events[DA7219_AAD_IRQ_REG_B] &
418 (DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
419 report &= ~(SND_JACK_BTN_0 >> i);
420 mask |= SND_JACK_BTN_0 >> i;
421 }
422 }
423 }
424 } else {
425 /* Jack removal */
426 if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
427 report = 0;
428 mask |= DA7219_AAD_REPORT_ALL_MASK;
429 da7219_aad->jack_inserted = false;
430
431 /* Un-drive headphones/lineout */
432 snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
433 DA7219_HP_R_AMP_OE_MASK, 0);
434 snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
435 DA7219_HP_L_AMP_OE_MASK, 0);
436
437 /* Ensure button detection disabled */
438 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
439 DA7219_BUTTON_CONFIG_MASK, 0);
440
441 da7219->micbias_on_event = false;
442
443 /* Disable mic bias */
444 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
445 snd_soc_dapm_sync(dapm);
446
447 /* Cancel any pending work */
448 cancel_work_sync(&da7219_aad->btn_det_work);
449 cancel_work_sync(&da7219_aad->hptest_work);
450 }
451 }
452
453 snd_soc_jack_report(da7219_aad->jack, report, mask);
454
455 return IRQ_HANDLED;
456 }
457
458 /*
459 * DT/ACPI to pdata conversion
460 */
461
462 static enum da7219_aad_micbias_pulse_lvl
463 da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_component *component, u32 val)
464 {
465 switch (val) {
466 case 2800:
467 return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
468 case 2900:
469 return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
470 default:
471 dev_warn(component->dev, "Invalid micbias pulse level");
472 return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
473 }
474 }
475
476 static enum da7219_aad_btn_cfg
477 da7219_aad_fw_btn_cfg(struct snd_soc_component *component, u32 val)
478 {
479 switch (val) {
480 case 2:
481 return DA7219_AAD_BTN_CFG_2MS;
482 case 5:
483 return DA7219_AAD_BTN_CFG_5MS;
484 case 10:
485 return DA7219_AAD_BTN_CFG_10MS;
486 case 50:
487 return DA7219_AAD_BTN_CFG_50MS;
488 case 100:
489 return DA7219_AAD_BTN_CFG_100MS;
490 case 200:
491 return DA7219_AAD_BTN_CFG_200MS;
492 case 500:
493 return DA7219_AAD_BTN_CFG_500MS;
494 default:
495 dev_warn(component->dev, "Invalid button config");
496 return DA7219_AAD_BTN_CFG_10MS;
497 }
498 }
499
500 static enum da7219_aad_mic_det_thr
501 da7219_aad_fw_mic_det_thr(struct snd_soc_component *component, u32 val)
502 {
503 switch (val) {
504 case 200:
505 return DA7219_AAD_MIC_DET_THR_200_OHMS;
506 case 500:
507 return DA7219_AAD_MIC_DET_THR_500_OHMS;
508 case 750:
509 return DA7219_AAD_MIC_DET_THR_750_OHMS;
510 case 1000:
511 return DA7219_AAD_MIC_DET_THR_1000_OHMS;
512 default:
513 dev_warn(component->dev, "Invalid mic detect threshold");
514 return DA7219_AAD_MIC_DET_THR_500_OHMS;
515 }
516 }
517
518 static enum da7219_aad_jack_ins_deb
519 da7219_aad_fw_jack_ins_deb(struct snd_soc_component *component, u32 val)
520 {
521 switch (val) {
522 case 5:
523 return DA7219_AAD_JACK_INS_DEB_5MS;
524 case 10:
525 return DA7219_AAD_JACK_INS_DEB_10MS;
526 case 20:
527 return DA7219_AAD_JACK_INS_DEB_20MS;
528 case 50:
529 return DA7219_AAD_JACK_INS_DEB_50MS;
530 case 100:
531 return DA7219_AAD_JACK_INS_DEB_100MS;
532 case 200:
533 return DA7219_AAD_JACK_INS_DEB_200MS;
534 case 500:
535 return DA7219_AAD_JACK_INS_DEB_500MS;
536 case 1000:
537 return DA7219_AAD_JACK_INS_DEB_1S;
538 default:
539 dev_warn(component->dev, "Invalid jack insert debounce");
540 return DA7219_AAD_JACK_INS_DEB_20MS;
541 }
542 }
543
544 static enum da7219_aad_jack_det_rate
545 da7219_aad_fw_jack_det_rate(struct snd_soc_component *component, const char *str)
546 {
547 if (!strcmp(str, "32ms_64ms")) {
548 return DA7219_AAD_JACK_DET_RATE_32_64MS;
549 } else if (!strcmp(str, "64ms_128ms")) {
550 return DA7219_AAD_JACK_DET_RATE_64_128MS;
551 } else if (!strcmp(str, "128ms_256ms")) {
552 return DA7219_AAD_JACK_DET_RATE_128_256MS;
553 } else if (!strcmp(str, "256ms_512ms")) {
554 return DA7219_AAD_JACK_DET_RATE_256_512MS;
555 } else {
556 dev_warn(component->dev, "Invalid jack detect rate");
557 return DA7219_AAD_JACK_DET_RATE_256_512MS;
558 }
559 }
560
561 static enum da7219_aad_jack_rem_deb
562 da7219_aad_fw_jack_rem_deb(struct snd_soc_component *component, u32 val)
563 {
564 switch (val) {
565 case 1:
566 return DA7219_AAD_JACK_REM_DEB_1MS;
567 case 5:
568 return DA7219_AAD_JACK_REM_DEB_5MS;
569 case 10:
570 return DA7219_AAD_JACK_REM_DEB_10MS;
571 case 20:
572 return DA7219_AAD_JACK_REM_DEB_20MS;
573 default:
574 dev_warn(component->dev, "Invalid jack removal debounce");
575 return DA7219_AAD_JACK_REM_DEB_1MS;
576 }
577 }
578
579 static enum da7219_aad_btn_avg
580 da7219_aad_fw_btn_avg(struct snd_soc_component *component, u32 val)
581 {
582 switch (val) {
583 case 1:
584 return DA7219_AAD_BTN_AVG_1;
585 case 2:
586 return DA7219_AAD_BTN_AVG_2;
587 case 4:
588 return DA7219_AAD_BTN_AVG_4;
589 case 8:
590 return DA7219_AAD_BTN_AVG_8;
591 default:
592 dev_warn(component->dev, "Invalid button average value");
593 return DA7219_AAD_BTN_AVG_2;
594 }
595 }
596
597 static enum da7219_aad_adc_1bit_rpt
598 da7219_aad_fw_adc_1bit_rpt(struct snd_soc_component *component, u32 val)
599 {
600 switch (val) {
601 case 1:
602 return DA7219_AAD_ADC_1BIT_RPT_1;
603 case 2:
604 return DA7219_AAD_ADC_1BIT_RPT_2;
605 case 4:
606 return DA7219_AAD_ADC_1BIT_RPT_4;
607 case 8:
608 return DA7219_AAD_ADC_1BIT_RPT_8;
609 default:
610 dev_warn(component->dev, "Invalid ADC 1-bit repeat value");
611 return DA7219_AAD_ADC_1BIT_RPT_1;
612 }
613 }
614
615 static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_component *component)
616 {
617 struct device *dev = component->dev;
618 struct i2c_client *i2c = to_i2c_client(dev);
619 struct fwnode_handle *aad_np;
620 struct da7219_aad_pdata *aad_pdata;
621 const char *fw_str;
622 u32 fw_val32;
623
624 aad_np = device_get_named_child_node(dev, "da7219_aad");
625 if (!aad_np)
626 return NULL;
627
628 aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
629 if (!aad_pdata)
630 return NULL;
631
632 aad_pdata->irq = i2c->irq;
633
634 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
635 &fw_val32) >= 0)
636 aad_pdata->micbias_pulse_lvl =
637 da7219_aad_fw_micbias_pulse_lvl(component, fw_val32);
638 else
639 aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
640
641 if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
642 &fw_val32) >= 0)
643 aad_pdata->micbias_pulse_time = fw_val32;
644
645 if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
646 aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(component, fw_val32);
647 else
648 aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
649
650 if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
651 aad_pdata->mic_det_thr =
652 da7219_aad_fw_mic_det_thr(component, fw_val32);
653 else
654 aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
655
656 if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
657 aad_pdata->jack_ins_deb =
658 da7219_aad_fw_jack_ins_deb(component, fw_val32);
659 else
660 aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
661
662 if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
663 aad_pdata->jack_det_rate =
664 da7219_aad_fw_jack_det_rate(component, fw_str);
665 else
666 aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
667
668 if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
669 aad_pdata->jack_rem_deb =
670 da7219_aad_fw_jack_rem_deb(component, fw_val32);
671 else
672 aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
673
674 if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
675 aad_pdata->a_d_btn_thr = (u8) fw_val32;
676 else
677 aad_pdata->a_d_btn_thr = 0xA;
678
679 if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
680 aad_pdata->d_b_btn_thr = (u8) fw_val32;
681 else
682 aad_pdata->d_b_btn_thr = 0x16;
683
684 if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
685 aad_pdata->b_c_btn_thr = (u8) fw_val32;
686 else
687 aad_pdata->b_c_btn_thr = 0x21;
688
689 if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
690 aad_pdata->c_mic_btn_thr = (u8) fw_val32;
691 else
692 aad_pdata->c_mic_btn_thr = 0x3E;
693
694 if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
695 aad_pdata->btn_avg = da7219_aad_fw_btn_avg(component, fw_val32);
696 else
697 aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
698
699 if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
700 aad_pdata->adc_1bit_rpt =
701 da7219_aad_fw_adc_1bit_rpt(component, fw_val32);
702 else
703 aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
704
705 return aad_pdata;
706 }
707
708 static void da7219_aad_handle_pdata(struct snd_soc_component *component)
709 {
710 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
711 struct da7219_aad_priv *da7219_aad = da7219->aad;
712 struct da7219_pdata *pdata = da7219->pdata;
713
714 if ((pdata) && (pdata->aad_pdata)) {
715 struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
716 u8 cfg, mask;
717
718 da7219_aad->irq = aad_pdata->irq;
719
720 switch (aad_pdata->micbias_pulse_lvl) {
721 case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
722 case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
723 da7219_aad->micbias_pulse_lvl =
724 (aad_pdata->micbias_pulse_lvl <<
725 DA7219_MICBIAS1_LEVEL_SHIFT);
726 break;
727 default:
728 break;
729 }
730
731 da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
732
733 switch (aad_pdata->btn_cfg) {
734 case DA7219_AAD_BTN_CFG_2MS:
735 case DA7219_AAD_BTN_CFG_5MS:
736 case DA7219_AAD_BTN_CFG_10MS:
737 case DA7219_AAD_BTN_CFG_50MS:
738 case DA7219_AAD_BTN_CFG_100MS:
739 case DA7219_AAD_BTN_CFG_200MS:
740 case DA7219_AAD_BTN_CFG_500MS:
741 da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
742 DA7219_BUTTON_CONFIG_SHIFT);
743 }
744
745 cfg = 0;
746 mask = 0;
747 switch (aad_pdata->mic_det_thr) {
748 case DA7219_AAD_MIC_DET_THR_200_OHMS:
749 case DA7219_AAD_MIC_DET_THR_500_OHMS:
750 case DA7219_AAD_MIC_DET_THR_750_OHMS:
751 case DA7219_AAD_MIC_DET_THR_1000_OHMS:
752 cfg |= (aad_pdata->mic_det_thr <<
753 DA7219_MIC_DET_THRESH_SHIFT);
754 mask |= DA7219_MIC_DET_THRESH_MASK;
755 }
756 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1, mask, cfg);
757
758 cfg = 0;
759 mask = 0;
760 switch (aad_pdata->jack_ins_deb) {
761 case DA7219_AAD_JACK_INS_DEB_5MS:
762 case DA7219_AAD_JACK_INS_DEB_10MS:
763 case DA7219_AAD_JACK_INS_DEB_20MS:
764 case DA7219_AAD_JACK_INS_DEB_50MS:
765 case DA7219_AAD_JACK_INS_DEB_100MS:
766 case DA7219_AAD_JACK_INS_DEB_200MS:
767 case DA7219_AAD_JACK_INS_DEB_500MS:
768 case DA7219_AAD_JACK_INS_DEB_1S:
769 cfg |= (aad_pdata->jack_ins_deb <<
770 DA7219_JACKDET_DEBOUNCE_SHIFT);
771 mask |= DA7219_JACKDET_DEBOUNCE_MASK;
772 }
773 switch (aad_pdata->jack_det_rate) {
774 case DA7219_AAD_JACK_DET_RATE_32_64MS:
775 case DA7219_AAD_JACK_DET_RATE_64_128MS:
776 case DA7219_AAD_JACK_DET_RATE_128_256MS:
777 case DA7219_AAD_JACK_DET_RATE_256_512MS:
778 cfg |= (aad_pdata->jack_det_rate <<
779 DA7219_JACK_DETECT_RATE_SHIFT);
780 mask |= DA7219_JACK_DETECT_RATE_MASK;
781 }
782 switch (aad_pdata->jack_rem_deb) {
783 case DA7219_AAD_JACK_REM_DEB_1MS:
784 case DA7219_AAD_JACK_REM_DEB_5MS:
785 case DA7219_AAD_JACK_REM_DEB_10MS:
786 case DA7219_AAD_JACK_REM_DEB_20MS:
787 cfg |= (aad_pdata->jack_rem_deb <<
788 DA7219_JACKDET_REM_DEB_SHIFT);
789 mask |= DA7219_JACKDET_REM_DEB_MASK;
790 }
791 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_2, mask, cfg);
792
793 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_3,
794 aad_pdata->a_d_btn_thr);
795 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_4,
796 aad_pdata->d_b_btn_thr);
797 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_5,
798 aad_pdata->b_c_btn_thr);
799 snd_soc_component_write(component, DA7219_ACCDET_CONFIG_6,
800 aad_pdata->c_mic_btn_thr);
801
802 cfg = 0;
803 mask = 0;
804 switch (aad_pdata->btn_avg) {
805 case DA7219_AAD_BTN_AVG_1:
806 case DA7219_AAD_BTN_AVG_2:
807 case DA7219_AAD_BTN_AVG_4:
808 case DA7219_AAD_BTN_AVG_8:
809 cfg |= (aad_pdata->btn_avg <<
810 DA7219_BUTTON_AVERAGE_SHIFT);
811 mask |= DA7219_BUTTON_AVERAGE_MASK;
812 }
813 switch (aad_pdata->adc_1bit_rpt) {
814 case DA7219_AAD_ADC_1BIT_RPT_1:
815 case DA7219_AAD_ADC_1BIT_RPT_2:
816 case DA7219_AAD_ADC_1BIT_RPT_4:
817 case DA7219_AAD_ADC_1BIT_RPT_8:
818 cfg |= (aad_pdata->adc_1bit_rpt <<
819 DA7219_ADC_1_BIT_REPEAT_SHIFT);
820 mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
821 }
822 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_7, mask, cfg);
823 }
824 }
825
826
827 /*
828 * Suspend/Resume
829 */
830
831 void da7219_aad_suspend(struct snd_soc_component *component)
832 {
833 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
834 struct da7219_aad_priv *da7219_aad = da7219->aad;
835 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
836 u8 micbias_ctrl;
837
838 if (da7219_aad->jack) {
839 /* Disable jack detection during suspend */
840 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
841 DA7219_ACCDET_EN_MASK, 0);
842
843 /*
844 * If we have a 4-pole jack inserted, then micbias will be
845 * enabled. We can disable micbias here, and keep a note to
846 * re-enable it on resume. If jack removal occurred during
847 * suspend then this will be dealt with through the IRQ handler.
848 */
849 if (da7219_aad->jack_inserted) {
850 micbias_ctrl = snd_soc_component_read32(component, DA7219_MICBIAS_CTRL);
851 if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
852 snd_soc_dapm_disable_pin(dapm, "Mic Bias");
853 snd_soc_dapm_sync(dapm);
854 da7219_aad->micbias_resume_enable = true;
855 }
856 }
857 }
858 }
859
860 void da7219_aad_resume(struct snd_soc_component *component)
861 {
862 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
863 struct da7219_aad_priv *da7219_aad = da7219->aad;
864 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
865
866 if (da7219_aad->jack) {
867 /* Re-enable micbias if previously enabled for 4-pole jack */
868 if (da7219_aad->jack_inserted &&
869 da7219_aad->micbias_resume_enable) {
870 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
871 snd_soc_dapm_sync(dapm);
872 da7219_aad->micbias_resume_enable = false;
873 }
874
875 /* Re-enable jack detection */
876 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
877 DA7219_ACCDET_EN_MASK,
878 DA7219_ACCDET_EN_MASK);
879 }
880 }
881
882
883 /*
884 * Init/Exit
885 */
886
887 int da7219_aad_init(struct snd_soc_component *component)
888 {
889 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
890 struct da7219_aad_priv *da7219_aad;
891 u8 mask[DA7219_AAD_IRQ_REG_MAX];
892 int ret;
893
894 da7219_aad = devm_kzalloc(component->dev, sizeof(*da7219_aad), GFP_KERNEL);
895 if (!da7219_aad)
896 return -ENOMEM;
897
898 da7219->aad = da7219_aad;
899 da7219_aad->component = component;
900
901 /* Handle any DT/ACPI/platform data */
902 if (da7219->pdata && !da7219->pdata->aad_pdata)
903 da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(component);
904
905 da7219_aad_handle_pdata(component);
906
907 /* Disable button detection */
908 snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
909 DA7219_BUTTON_CONFIG_MASK, 0);
910
911 INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
912 INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
913
914 ret = request_threaded_irq(da7219_aad->irq, NULL,
915 da7219_aad_irq_thread,
916 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
917 "da7219-aad", da7219_aad);
918 if (ret) {
919 dev_err(component->dev, "Failed to request IRQ: %d\n", ret);
920 return ret;
921 }
922
923 /* Unmask AAD IRQs */
924 memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
925 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
926 &mask, DA7219_AAD_IRQ_REG_MAX);
927
928 return 0;
929 }
930 EXPORT_SYMBOL_GPL(da7219_aad_init);
931
932 void da7219_aad_exit(struct snd_soc_component *component)
933 {
934 struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
935 struct da7219_aad_priv *da7219_aad = da7219->aad;
936 u8 mask[DA7219_AAD_IRQ_REG_MAX];
937
938 /* Mask off AAD IRQs */
939 memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
940 regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
941 mask, DA7219_AAD_IRQ_REG_MAX);
942
943 free_irq(da7219_aad->irq, da7219_aad);
944
945 cancel_work_sync(&da7219_aad->btn_det_work);
946 cancel_work_sync(&da7219_aad->hptest_work);
947 }
948 EXPORT_SYMBOL_GPL(da7219_aad_exit);
949
950 MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
951 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
952 MODULE_LICENSE("GPL");
Linux with added FPC-III support