2 * ALSA SoC TWL6040 codec driver
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/init.h>
25 #include <linux/delay.h>
27 #include <linux/i2c.h>
28 #include <linux/gpio.h>
29 #include <linux/platform_device.h>
30 #include <linux/slab.h>
31 #include <linux/i2c/twl.h>
33 #include <sound/core.h>
34 #include <sound/pcm.h>
35 #include <sound/pcm_params.h>
36 #include <sound/soc.h>
37 #include <sound/initval.h>
38 #include <sound/tlv.h>
42 #define TWL6040_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
43 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
45 struct twl6040_jack_data {
46 struct snd_soc_jack *jack;
50 /* codec private data */
58 struct snd_pcm_hw_constraint_list *sysclk_constraints;
59 struct completion ready;
60 struct twl6040_jack_data hs_jack;
61 struct snd_soc_codec *codec;
62 struct workqueue_struct *workqueue;
63 struct delayed_work delayed_work;
68 * twl6040 register cache & default register settings
70 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
71 0x00, /* not used 0x00 */
72 0x4B, /* TWL6040_ASICID (ro) 0x01 */
73 0x00, /* TWL6040_ASICREV (ro) 0x02 */
74 0x00, /* TWL6040_INTID 0x03 */
75 0x00, /* TWL6040_INTMR 0x04 */
76 0x00, /* TWL6040_NCPCTRL 0x05 */
77 0x00, /* TWL6040_LDOCTL 0x06 */
78 0x60, /* TWL6040_HPPLLCTL 0x07 */
79 0x00, /* TWL6040_LPPLLCTL 0x08 */
80 0x4A, /* TWL6040_LPPLLDIV 0x09 */
81 0x00, /* TWL6040_AMICBCTL 0x0A */
82 0x00, /* TWL6040_DMICBCTL 0x0B */
83 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
84 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
85 0x00, /* TWL6040_MICGAIN 0x0E */
86 0x1B, /* TWL6040_LINEGAIN 0x0F */
87 0x00, /* TWL6040_HSLCTL 0x10 */
88 0x00, /* TWL6040_HSRCTL 0x11 */
89 0x00, /* TWL6040_HSGAIN 0x12 */
90 0x00, /* TWL6040_EARCTL 0x13 */
91 0x00, /* TWL6040_HFLCTL 0x14 */
92 0x00, /* TWL6040_HFLGAIN 0x15 */
93 0x00, /* TWL6040_HFRCTL 0x16 */
94 0x00, /* TWL6040_HFRGAIN 0x17 */
95 0x00, /* TWL6040_VIBCTLL 0x18 */
96 0x00, /* TWL6040_VIBDATL 0x19 */
97 0x00, /* TWL6040_VIBCTLR 0x1A */
98 0x00, /* TWL6040_VIBDATR 0x1B */
99 0x00, /* TWL6040_HKCTL1 0x1C */
100 0x00, /* TWL6040_HKCTL2 0x1D */
101 0x00, /* TWL6040_GPOCTL 0x1E */
102 0x00, /* TWL6040_ALB 0x1F */
103 0x00, /* TWL6040_DLB 0x20 */
104 0x00, /* not used 0x21 */
105 0x00, /* not used 0x22 */
106 0x00, /* not used 0x23 */
107 0x00, /* not used 0x24 */
108 0x00, /* not used 0x25 */
109 0x00, /* not used 0x26 */
110 0x00, /* not used 0x27 */
111 0x00, /* TWL6040_TRIM1 0x28 */
112 0x00, /* TWL6040_TRIM2 0x29 */
113 0x00, /* TWL6040_TRIM3 0x2A */
114 0x00, /* TWL6040_HSOTRIM 0x2B */
115 0x00, /* TWL6040_HFOTRIM 0x2C */
116 0x09, /* TWL6040_ACCCTL 0x2D */
117 0x00, /* TWL6040_STATUS (ro) 0x2E */
121 * twl6040 vio/gnd registers:
122 * registers under vio/gnd supply can be accessed
123 * before the power-up sequence, after NRESPWRON goes high
125 static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
132 TWL6040_REG_AMICBCTL,
133 TWL6040_REG_DMICBCTL,
147 * twl6040 vdd/vss registers:
148 * registers under vdd/vss supplies can only be accessed
149 * after the power-up sequence
151 static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
152 TWL6040_REG_HPPLLCTL,
153 TWL6040_REG_LPPLLCTL,
154 TWL6040_REG_LPPLLDIV,
158 TWL6040_REG_LINEGAIN,
176 * read twl6040 register cache
178 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
181 u8 *cache = codec->reg_cache;
183 if (reg >= TWL6040_CACHEREGNUM)
190 * write twl6040 register cache
192 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
195 u8 *cache = codec->reg_cache;
197 if (reg >= TWL6040_CACHEREGNUM)
203 * read from twl6040 hardware register
205 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
210 if (reg >= TWL6040_CACHEREGNUM)
213 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &value, reg);
214 twl6040_write_reg_cache(codec, reg, value);
220 * write to the twl6040 register space
222 static int twl6040_write(struct snd_soc_codec *codec,
223 unsigned int reg, unsigned int value)
225 if (reg >= TWL6040_CACHEREGNUM)
228 twl6040_write_reg_cache(codec, reg, value);
229 return twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, value, reg);
232 static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
234 u8 *cache = codec->reg_cache;
237 /* allow registers to be accessed by i2c */
238 twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]);
240 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
241 reg = twl6040_vio_reg[i];
242 /* skip read-only registers (ASICID, ASICREV, STATUS) */
244 case TWL6040_REG_ASICID:
245 case TWL6040_REG_ASICREV:
246 case TWL6040_REG_STATUS:
251 twl6040_write(codec, reg, cache[reg]);
255 static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
257 u8 *cache = codec->reg_cache;
260 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
261 reg = twl6040_vdd_reg[i];
262 twl6040_write(codec, reg, cache[reg]);
266 /* twl6040 codec manual power-up sequence */
267 static void twl6040_power_up(struct snd_soc_codec *codec)
269 u8 ncpctl, ldoctl, lppllctl, accctl;
271 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
272 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
273 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
274 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
276 /* enable reference system */
277 ldoctl |= TWL6040_REFENA;
278 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
280 /* enable internal oscillator */
281 ldoctl |= TWL6040_OSCENA;
282 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
284 /* enable high-side ldo */
285 ldoctl |= TWL6040_HSLDOENA;
286 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
288 /* enable negative charge pump */
289 ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN;
290 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
292 /* enable low-side ldo */
293 ldoctl |= TWL6040_LSLDOENA;
294 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
296 /* enable low-power pll */
297 lppllctl |= TWL6040_LPLLENA;
298 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
299 /* reset state machine */
300 accctl |= TWL6040_RESETSPLIT;
301 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
303 accctl &= ~TWL6040_RESETSPLIT;
304 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
305 /* disable internal oscillator */
306 ldoctl &= ~TWL6040_OSCENA;
307 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
310 /* twl6040 codec manual power-down sequence */
311 static void twl6040_power_down(struct snd_soc_codec *codec)
313 u8 ncpctl, ldoctl, lppllctl, accctl;
315 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
316 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
317 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
318 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
320 /* enable internal oscillator */
321 ldoctl |= TWL6040_OSCENA;
322 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
324 /* disable low-power pll */
325 lppllctl &= ~TWL6040_LPLLENA;
326 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
327 /* disable low-side ldo */
328 ldoctl &= ~TWL6040_LSLDOENA;
329 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
331 /* disable negative charge pump */
332 ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN);
333 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
335 /* disable high-side ldo */
336 ldoctl &= ~TWL6040_HSLDOENA;
337 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
339 /* disable internal oscillator */
340 ldoctl &= ~TWL6040_OSCENA;
341 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
342 /* disable reference system */
343 ldoctl &= ~TWL6040_REFENA;
344 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
348 /* set headset dac and driver power mode */
349 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
352 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
354 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
355 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
365 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
366 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
371 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
372 struct snd_kcontrol *kcontrol, int event)
378 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
379 struct snd_kcontrol *kcontrol, int event)
381 struct snd_soc_codec *codec = w->codec;
382 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
384 if (SND_SOC_DAPM_EVENT_ON(event))
394 void twl6040_hs_jack_report(struct snd_soc_codec *codec,
395 struct snd_soc_jack *jack, int report)
397 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
400 mutex_lock(&priv->mutex);
403 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
404 if (status & TWL6040_PLUGCOMP)
405 snd_soc_jack_report(jack, report, report);
407 snd_soc_jack_report(jack, 0, report);
409 mutex_unlock(&priv->mutex);
412 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
413 struct snd_soc_jack *jack, int report)
415 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
416 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
418 hs_jack->jack = jack;
419 hs_jack->report = report;
421 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
423 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
425 static void twl6040_accessory_work(struct work_struct *work)
427 struct twl6040_data *priv = container_of(work,
428 struct twl6040_data, delayed_work.work);
429 struct snd_soc_codec *codec = priv->codec;
430 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
432 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
435 /* audio interrupt handler */
436 static irqreturn_t twl6040_naudint_handler(int irq, void *data)
438 struct snd_soc_codec *codec = data;
439 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
442 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID);
444 if (intid & TWL6040_THINT)
445 dev_alert(codec->dev, "die temp over-limit detection\n");
447 if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
448 queue_delayed_work(priv->workqueue, &priv->delayed_work,
449 msecs_to_jiffies(200));
451 if (intid & TWL6040_HOOKINT)
452 dev_info(codec->dev, "hook detection\n");
454 if (intid & TWL6040_HFINT)
455 dev_alert(codec->dev, "hf drivers over current detection\n");
457 if (intid & TWL6040_VIBINT)
458 dev_alert(codec->dev, "vib drivers over current detection\n");
460 if (intid & TWL6040_READYINT)
461 complete(&priv->ready);
467 * MICATT volume control:
468 * from -6 to 0 dB in 6 dB steps
470 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
473 * MICGAIN volume control:
474 * from 6 to 30 dB in 6 dB steps
476 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
479 * AFMGAIN volume control:
480 * from 18 to 24 dB in 6 dB steps
482 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, 1800, 600, 0);
485 * HSGAIN volume control:
486 * from -30 to 0 dB in 2 dB steps
488 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
491 * HFGAIN volume control:
492 * from -52 to 6 dB in 2 dB steps
494 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
497 * EPGAIN volume control:
498 * from -24 to 6 dB in 2 dB steps
500 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
502 /* Left analog microphone selection */
503 static const char *twl6040_amicl_texts[] =
504 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
506 /* Right analog microphone selection */
507 static const char *twl6040_amicr_texts[] =
508 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
510 static const struct soc_enum twl6040_enum[] = {
511 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 3, twl6040_amicl_texts),
512 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 3, twl6040_amicr_texts),
515 static const char *twl6040_hs_texts[] = {
516 "Off", "HS DAC", "Line-In amp"
519 static const struct soc_enum twl6040_hs_enum[] = {
520 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
522 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
526 static const char *twl6040_hf_texts[] = {
527 "Off", "HF DAC", "Line-In amp"
530 static const struct soc_enum twl6040_hf_enum[] = {
531 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
533 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
537 static const struct snd_kcontrol_new amicl_control =
538 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
540 static const struct snd_kcontrol_new amicr_control =
541 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
543 /* Headset DAC playback switches */
544 static const struct snd_kcontrol_new hsl_mux_controls =
545 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
547 static const struct snd_kcontrol_new hsr_mux_controls =
548 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
550 /* Handsfree DAC playback switches */
551 static const struct snd_kcontrol_new hfl_mux_controls =
552 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
554 static const struct snd_kcontrol_new hfr_mux_controls =
555 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
557 static const struct snd_kcontrol_new ep_driver_switch_controls =
558 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
560 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
562 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
563 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
564 SOC_DOUBLE_TLV("Capture Volume",
565 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
568 SOC_DOUBLE_TLV("Aux FM Volume",
569 TWL6040_REG_LINEGAIN, 0, 5, 0xF, 0, afm_amp_tlv),
572 SOC_DOUBLE_TLV("Headset Playback Volume",
573 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
574 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
575 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
576 SOC_SINGLE_TLV("Earphone Playback Volume",
577 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
580 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
582 SND_SOC_DAPM_INPUT("MAINMIC"),
583 SND_SOC_DAPM_INPUT("HSMIC"),
584 SND_SOC_DAPM_INPUT("SUBMIC"),
585 SND_SOC_DAPM_INPUT("AFML"),
586 SND_SOC_DAPM_INPUT("AFMR"),
589 SND_SOC_DAPM_OUTPUT("HSOL"),
590 SND_SOC_DAPM_OUTPUT("HSOR"),
591 SND_SOC_DAPM_OUTPUT("HFL"),
592 SND_SOC_DAPM_OUTPUT("HFR"),
593 SND_SOC_DAPM_OUTPUT("EP"),
595 /* Analog input muxes for the capture amplifiers */
596 SND_SOC_DAPM_MUX("Analog Left Capture Route",
597 SND_SOC_NOPM, 0, 0, &amicl_control),
598 SND_SOC_DAPM_MUX("Analog Right Capture Route",
599 SND_SOC_NOPM, 0, 0, &amicr_control),
601 /* Analog capture PGAs */
602 SND_SOC_DAPM_PGA("MicAmpL",
603 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
604 SND_SOC_DAPM_PGA("MicAmpR",
605 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
607 /* Auxiliary FM PGAs */
608 SND_SOC_DAPM_PGA("AFMAmpL",
609 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
610 SND_SOC_DAPM_PGA("AFMAmpR",
611 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
614 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
615 TWL6040_REG_MICLCTL, 2, 0),
616 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
617 TWL6040_REG_MICRCTL, 2, 0),
619 /* Microphone bias */
620 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
621 TWL6040_REG_AMICBCTL, 0, 0),
622 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
623 TWL6040_REG_AMICBCTL, 4, 0),
624 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
625 TWL6040_REG_DMICBCTL, 0, 0),
626 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
627 TWL6040_REG_DMICBCTL, 4, 0),
630 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
631 TWL6040_REG_HSLCTL, 0, 0,
632 twl6040_hs_dac_event,
633 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
634 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
635 TWL6040_REG_HSRCTL, 0, 0,
636 twl6040_hs_dac_event,
637 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
638 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
639 TWL6040_REG_HFLCTL, 0, 0,
640 twl6040_power_mode_event,
641 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
642 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
643 TWL6040_REG_HFRCTL, 0, 0,
644 twl6040_power_mode_event,
645 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
647 SND_SOC_DAPM_MUX("HF Left Playback",
648 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
649 SND_SOC_DAPM_MUX("HF Right Playback",
650 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
651 /* Analog playback Muxes */
652 SND_SOC_DAPM_MUX("HS Left Playback",
653 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
654 SND_SOC_DAPM_MUX("HS Right Playback",
655 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
657 /* Analog playback drivers */
658 SND_SOC_DAPM_PGA_E("Handsfree Left Driver",
659 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
660 twl6040_power_mode_event,
661 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
662 SND_SOC_DAPM_PGA_E("Handsfree Right Driver",
663 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
664 twl6040_power_mode_event,
665 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
666 SND_SOC_DAPM_PGA("Headset Left Driver",
667 TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
668 SND_SOC_DAPM_PGA("Headset Right Driver",
669 TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
670 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
671 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
672 twl6040_power_mode_event,
673 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
675 /* Analog playback PGAs */
676 SND_SOC_DAPM_PGA("HFDAC Left PGA",
677 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
678 SND_SOC_DAPM_PGA("HFDAC Right PGA",
679 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
683 static const struct snd_soc_dapm_route intercon[] = {
685 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
686 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
687 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
689 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
690 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
691 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
693 {"MicAmpL", NULL, "Analog Left Capture Route"},
694 {"MicAmpR", NULL, "Analog Right Capture Route"},
696 {"ADC Left", NULL, "MicAmpL"},
697 {"ADC Right", NULL, "MicAmpR"},
700 {"AFMAmpL", "NULL", "AFML"},
701 {"AFMAmpR", "NULL", "AFMR"},
703 {"HS Left Playback", "HS DAC", "HSDAC Left"},
704 {"HS Left Playback", "Line-In amp", "AFMAmpL"},
706 {"HS Right Playback", "HS DAC", "HSDAC Right"},
707 {"HS Right Playback", "Line-In amp", "AFMAmpR"},
709 {"Headset Left Driver", "NULL", "HS Left Playback"},
710 {"Headset Right Driver", "NULL", "HS Right Playback"},
712 {"HSOL", NULL, "Headset Left Driver"},
713 {"HSOR", NULL, "Headset Right Driver"},
715 /* Earphone playback path */
716 {"Earphone Driver", "Switch", "HSDAC Left"},
717 {"EP", NULL, "Earphone Driver"},
719 {"HF Left Playback", "HF DAC", "HFDAC Left"},
720 {"HF Left Playback", "Line-In amp", "AFMAmpL"},
722 {"HF Right Playback", "HF DAC", "HFDAC Right"},
723 {"HF Right Playback", "Line-In amp", "AFMAmpR"},
725 {"HFDAC Left PGA", NULL, "HF Left Playback"},
726 {"HFDAC Right PGA", NULL, "HF Right Playback"},
728 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
729 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
731 {"HFL", NULL, "Handsfree Left Driver"},
732 {"HFR", NULL, "Handsfree Right Driver"},
735 static int twl6040_add_widgets(struct snd_soc_codec *codec)
737 struct snd_soc_dapm_context *dapm = &codec->dapm;
739 snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
740 ARRAY_SIZE(twl6040_dapm_widgets));
741 snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
742 snd_soc_dapm_new_widgets(dapm);
747 static int twl6040_power_up_completion(struct snd_soc_codec *codec,
750 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
754 time_left = wait_for_completion_timeout(&priv->ready,
755 msecs_to_jiffies(48));
758 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid,
760 if (!(intid & TWL6040_READYINT)) {
761 dev_err(codec->dev, "timeout waiting for READYINT\n");
766 priv->codec_powered = 1;
771 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
772 enum snd_soc_bias_level level)
774 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
775 int audpwron = priv->audpwron;
776 int naudint = priv->naudint;
780 case SND_SOC_BIAS_ON:
782 case SND_SOC_BIAS_PREPARE:
784 case SND_SOC_BIAS_STANDBY:
785 if (priv->codec_powered)
788 if (gpio_is_valid(audpwron)) {
789 /* use AUDPWRON line */
790 gpio_set_value(audpwron, 1);
792 /* wait for power-up completion */
793 ret = twl6040_power_up_completion(codec, naudint);
797 /* sync registers updated during power-up sequence */
798 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
799 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
800 twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
802 /* use manual power-up sequence */
803 twl6040_power_up(codec);
804 priv->codec_powered = 1;
807 /* initialize vdd/vss registers with reg_cache */
808 twl6040_init_vdd_regs(codec);
810 case SND_SOC_BIAS_OFF:
811 if (!priv->codec_powered)
814 if (gpio_is_valid(audpwron)) {
815 /* use AUDPWRON line */
816 gpio_set_value(audpwron, 0);
818 /* power-down sequence latency */
821 /* sync registers updated during power-down sequence */
822 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
823 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
824 twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
827 /* use manual power-down sequence */
828 twl6040_power_down(codec);
831 priv->codec_powered = 0;
835 codec->dapm.bias_level = level;
840 /* set of rates for each pll: low-power and high-performance */
842 static unsigned int lp_rates[] = {
847 static struct snd_pcm_hw_constraint_list lp_constraints = {
848 .count = ARRAY_SIZE(lp_rates),
852 static unsigned int hp_rates[] = {
856 static struct snd_pcm_hw_constraint_list hp_constraints = {
857 .count = ARRAY_SIZE(hp_rates),
861 static int twl6040_startup(struct snd_pcm_substream *substream,
862 struct snd_soc_dai *dai)
864 struct snd_soc_pcm_runtime *rtd = substream->private_data;
865 struct snd_soc_codec *codec = rtd->codec;
866 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
868 snd_pcm_hw_constraint_list(substream->runtime, 0,
869 SNDRV_PCM_HW_PARAM_RATE,
870 priv->sysclk_constraints);
875 static int twl6040_hw_params(struct snd_pcm_substream *substream,
876 struct snd_pcm_hw_params *params,
877 struct snd_soc_dai *dai)
879 struct snd_soc_pcm_runtime *rtd = substream->private_data;
880 struct snd_soc_codec *codec = rtd->codec;
881 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
885 /* nothing to do for high-perf pll, it supports only 48 kHz */
886 if (priv->pll == TWL6040_HPPLL_ID)
889 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
891 rate = params_rate(params);
894 lppllctl |= TWL6040_LPLLFIN;
895 priv->sysclk = 17640000;
898 lppllctl &= ~TWL6040_LPLLFIN;
899 priv->sysclk = 19200000;
902 dev_err(codec->dev, "unsupported rate %d\n", rate);
906 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
911 static int twl6040_prepare(struct snd_pcm_substream *substream,
912 struct snd_soc_dai *dai)
914 struct snd_soc_pcm_runtime *rtd = substream->private_data;
915 struct snd_soc_codec *codec = rtd->codec;
916 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
920 "no mclk configured, call set_sysclk() on init\n");
925 * capture is not supported at 17.64 MHz,
926 * it's reserved for headset low-power playback scenario
928 if ((priv->sysclk == 17640000) &&
929 substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
931 "capture mode is not supported at %dHz\n",
936 if ((priv->sysclk == 17640000) && priv->non_lp) {
938 "some enabled paths aren't supported at %dHz\n",
945 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
946 int clk_id, unsigned int freq, int dir)
948 struct snd_soc_codec *codec = codec_dai->codec;
949 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
950 u8 hppllctl, lppllctl;
952 hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL);
953 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
956 case TWL6040_SYSCLK_SEL_LPPLL:
959 /* headset dac and driver must be in low-power mode */
960 headset_power_mode(codec, 0);
962 /* clk32k input requires low-power pll */
963 lppllctl |= TWL6040_LPLLENA;
964 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
966 lppllctl &= ~TWL6040_HPLLSEL;
967 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
968 hppllctl &= ~TWL6040_HPLLENA;
969 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
972 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
977 switch (priv->sysclk) {
979 lppllctl |= TWL6040_LPLLFIN;
982 lppllctl &= ~TWL6040_LPLLFIN;
985 /* sysclk not yet configured */
986 lppllctl &= ~TWL6040_LPLLFIN;
987 priv->sysclk = 19200000;
991 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
993 priv->pll = TWL6040_LPPLL_ID;
994 priv->sysclk_constraints = &lp_constraints;
996 case TWL6040_SYSCLK_SEL_HPPLL:
997 hppllctl &= ~TWL6040_MCLK_MSK;
1001 /* mclk input, pll enabled */
1002 hppllctl |= TWL6040_MCLK_12000KHZ |
1007 /* mclk input, pll disabled */
1008 hppllctl |= TWL6040_MCLK_19200KHZ |
1009 TWL6040_HPLLSQRENA |
1013 /* mclk input, pll enabled */
1014 hppllctl |= TWL6040_MCLK_26000KHZ |
1019 /* clk slicer, pll disabled */
1020 hppllctl |= TWL6040_MCLK_38400KHZ |
1021 TWL6040_HPLLSQRENA |
1025 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
1029 /* headset dac and driver must be in high-performance mode */
1030 headset_power_mode(codec, 1);
1032 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
1034 lppllctl |= TWL6040_HPLLSEL;
1035 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1036 lppllctl &= ~TWL6040_LPLLENA;
1037 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1039 /* high-performance pll can provide only 19.2 MHz */
1040 priv->pll = TWL6040_HPPLL_ID;
1041 priv->sysclk = 19200000;
1042 priv->sysclk_constraints = &hp_constraints;
1045 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1052 static struct snd_soc_dai_ops twl6040_dai_ops = {
1053 .startup = twl6040_startup,
1054 .hw_params = twl6040_hw_params,
1055 .prepare = twl6040_prepare,
1056 .set_sysclk = twl6040_set_dai_sysclk,
1059 static struct snd_soc_dai_driver twl6040_dai = {
1060 .name = "twl6040-hifi",
1062 .stream_name = "Playback",
1065 .rates = TWL6040_RATES,
1066 .formats = TWL6040_FORMATS,
1069 .stream_name = "Capture",
1072 .rates = TWL6040_RATES,
1073 .formats = TWL6040_FORMATS,
1075 .ops = &twl6040_dai_ops,
1079 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1081 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1086 static int twl6040_resume(struct snd_soc_codec *codec)
1088 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1089 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1094 #define twl6040_suspend NULL
1095 #define twl6040_resume NULL
1098 static int twl6040_probe(struct snd_soc_codec *codec)
1100 struct twl4030_codec_data *twl_codec = codec->dev->platform_data;
1101 struct twl6040_data *priv;
1102 int audpwron, naudint;
1105 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1108 snd_soc_codec_set_drvdata(codec, priv);
1110 priv->codec = codec;
1113 audpwron = twl_codec->audpwron_gpio;
1114 naudint = twl_codec->naudint_irq;
1120 priv->audpwron = audpwron;
1121 priv->naudint = naudint;
1122 priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1124 if (!priv->workqueue)
1127 INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1129 mutex_init(&priv->mutex);
1131 init_completion(&priv->ready);
1133 if (gpio_is_valid(audpwron)) {
1134 ret = gpio_request(audpwron, "audpwron");
1138 ret = gpio_direction_output(audpwron, 0);
1142 priv->codec_powered = 0;
1146 /* audio interrupt */
1147 ret = request_threaded_irq(naudint, NULL,
1148 twl6040_naudint_handler,
1149 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1150 "twl6040_codec", codec);
1154 if (gpio_is_valid(audpwron)) {
1155 /* enable only codec ready interrupt */
1156 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1157 ~TWL6040_READYMSK & TWL6040_ALLINT_MSK);
1159 /* no interrupts at all */
1160 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1161 TWL6040_ALLINT_MSK);
1165 /* init vio registers */
1166 twl6040_init_vio_regs(codec);
1168 /* power on device */
1169 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1173 snd_soc_add_controls(codec, twl6040_snd_controls,
1174 ARRAY_SIZE(twl6040_snd_controls));
1175 twl6040_add_widgets(codec);
1181 free_irq(naudint, codec);
1183 if (gpio_is_valid(audpwron))
1184 gpio_free(audpwron);
1186 destroy_workqueue(priv->workqueue);
1192 static int twl6040_remove(struct snd_soc_codec *codec)
1194 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1195 int audpwron = priv->audpwron;
1196 int naudint = priv->naudint;
1198 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1200 if (gpio_is_valid(audpwron))
1201 gpio_free(audpwron);
1204 free_irq(naudint, codec);
1206 destroy_workqueue(priv->workqueue);
1212 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1213 .probe = twl6040_probe,
1214 .remove = twl6040_remove,
1215 .suspend = twl6040_suspend,
1216 .resume = twl6040_resume,
1217 .read = twl6040_read_reg_cache,
1218 .write = twl6040_write,
1219 .set_bias_level = twl6040_set_bias_level,
1220 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1221 .reg_word_size = sizeof(u8),
1222 .reg_cache_default = twl6040_reg,
1225 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1227 return snd_soc_register_codec(&pdev->dev,
1228 &soc_codec_dev_twl6040, &twl6040_dai, 1);
1231 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1233 snd_soc_unregister_codec(&pdev->dev);
1237 static struct platform_driver twl6040_codec_driver = {
1239 .name = "twl6040-codec",
1240 .owner = THIS_MODULE,
1242 .probe = twl6040_codec_probe,
1243 .remove = __devexit_p(twl6040_codec_remove),
1246 static int __init twl6040_codec_init(void)
1248 return platform_driver_register(&twl6040_codec_driver);
1250 module_init(twl6040_codec_init);
1252 static void __exit twl6040_codec_exit(void)
1254 platform_driver_unregister(&twl6040_codec_driver);
1256 module_exit(twl6040_codec_exit);
1258 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1259 MODULE_AUTHOR("Misael Lopez Cruz");
1260 MODULE_LICENSE("GPL");