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/soc-dapm.h>
38 #include <sound/initval.h>
39 #include <sound/tlv.h>
43 #define TWL6040_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
44 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
46 /* codec private data */
48 struct snd_soc_codec codec;
55 struct snd_pcm_hw_constraint_list *sysclk_constraints;
56 struct completion ready;
60 * twl6040 register cache & default register settings
62 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
63 0x00, /* not used 0x00 */
64 0x4B, /* TWL6040_ASICID (ro) 0x01 */
65 0x00, /* TWL6040_ASICREV (ro) 0x02 */
66 0x00, /* TWL6040_INTID 0x03 */
67 0x00, /* TWL6040_INTMR 0x04 */
68 0x00, /* TWL6040_NCPCTRL 0x05 */
69 0x00, /* TWL6040_LDOCTL 0x06 */
70 0x60, /* TWL6040_HPPLLCTL 0x07 */
71 0x00, /* TWL6040_LPPLLCTL 0x08 */
72 0x4A, /* TWL6040_LPPLLDIV 0x09 */
73 0x00, /* TWL6040_AMICBCTL 0x0A */
74 0x00, /* TWL6040_DMICBCTL 0x0B */
75 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
76 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
77 0x00, /* TWL6040_MICGAIN 0x0E */
78 0x1B, /* TWL6040_LINEGAIN 0x0F */
79 0x00, /* TWL6040_HSLCTL 0x10 */
80 0x00, /* TWL6040_HSRCTL 0x11 */
81 0x00, /* TWL6040_HSGAIN 0x12 */
82 0x00, /* TWL6040_EARCTL 0x13 */
83 0x00, /* TWL6040_HFLCTL 0x14 */
84 0x00, /* TWL6040_HFLGAIN 0x15 */
85 0x00, /* TWL6040_HFRCTL 0x16 */
86 0x00, /* TWL6040_HFRGAIN 0x17 */
87 0x00, /* TWL6040_VIBCTLL 0x18 */
88 0x00, /* TWL6040_VIBDATL 0x19 */
89 0x00, /* TWL6040_VIBCTLR 0x1A */
90 0x00, /* TWL6040_VIBDATR 0x1B */
91 0x00, /* TWL6040_HKCTL1 0x1C */
92 0x00, /* TWL6040_HKCTL2 0x1D */
93 0x00, /* TWL6040_GPOCTL 0x1E */
94 0x00, /* TWL6040_ALB 0x1F */
95 0x00, /* TWL6040_DLB 0x20 */
96 0x00, /* not used 0x21 */
97 0x00, /* not used 0x22 */
98 0x00, /* not used 0x23 */
99 0x00, /* not used 0x24 */
100 0x00, /* not used 0x25 */
101 0x00, /* not used 0x26 */
102 0x00, /* not used 0x27 */
103 0x00, /* TWL6040_TRIM1 0x28 */
104 0x00, /* TWL6040_TRIM2 0x29 */
105 0x00, /* TWL6040_TRIM3 0x2A */
106 0x00, /* TWL6040_HSOTRIM 0x2B */
107 0x00, /* TWL6040_HFOTRIM 0x2C */
108 0x09, /* TWL6040_ACCCTL 0x2D */
109 0x00, /* TWL6040_STATUS (ro) 0x2E */
113 * twl6040 vio/gnd registers:
114 * registers under vio/gnd supply can be accessed
115 * before the power-up sequence, after NRESPWRON goes high
117 static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
124 TWL6040_REG_AMICBCTL,
125 TWL6040_REG_DMICBCTL,
139 * twl6040 vdd/vss registers:
140 * registers under vdd/vss supplies can only be accessed
141 * after the power-up sequence
143 static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
144 TWL6040_REG_HPPLLCTL,
145 TWL6040_REG_LPPLLCTL,
146 TWL6040_REG_LPPLLDIV,
150 TWL6040_REG_LINEGAIN,
168 * read twl6040 register cache
170 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
173 u8 *cache = codec->reg_cache;
175 if (reg >= TWL6040_CACHEREGNUM)
182 * write twl6040 register cache
184 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
187 u8 *cache = codec->reg_cache;
189 if (reg >= TWL6040_CACHEREGNUM)
195 * read from twl6040 hardware register
197 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
202 if (reg >= TWL6040_CACHEREGNUM)
205 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
206 twl6040_write_reg_cache(codec, reg, value);
212 * write to the twl6040 register space
214 static int twl6040_write(struct snd_soc_codec *codec,
215 unsigned int reg, unsigned int value)
217 if (reg >= TWL6040_CACHEREGNUM)
220 twl6040_write_reg_cache(codec, reg, value);
221 return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
224 static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
226 u8 *cache = codec->reg_cache;
229 /* allow registers to be accessed by i2c */
230 twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]);
232 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
233 reg = twl6040_vio_reg[i];
234 /* skip read-only registers (ASICID, ASICREV, STATUS) */
236 case TWL6040_REG_ASICID:
237 case TWL6040_REG_ASICREV:
238 case TWL6040_REG_STATUS:
243 twl6040_write(codec, reg, cache[reg]);
247 static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
249 u8 *cache = codec->reg_cache;
252 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
253 reg = twl6040_vdd_reg[i];
254 twl6040_write(codec, reg, cache[reg]);
258 /* twl6040 codec manual power-up sequence */
259 static void twl6040_power_up(struct snd_soc_codec *codec)
261 u8 ncpctl, ldoctl, lppllctl, accctl;
263 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
264 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
265 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
266 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
268 /* enable reference system */
269 ldoctl |= TWL6040_REFENA;
270 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
272 /* enable internal oscillator */
273 ldoctl |= TWL6040_OSCENA;
274 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
276 /* enable high-side ldo */
277 ldoctl |= TWL6040_HSLDOENA;
278 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
280 /* enable negative charge pump */
281 ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN;
282 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
284 /* enable low-side ldo */
285 ldoctl |= TWL6040_LSLDOENA;
286 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
288 /* enable low-power pll */
289 lppllctl |= TWL6040_LPLLENA;
290 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
291 /* reset state machine */
292 accctl |= TWL6040_RESETSPLIT;
293 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
295 accctl &= ~TWL6040_RESETSPLIT;
296 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
297 /* disable internal oscillator */
298 ldoctl &= ~TWL6040_OSCENA;
299 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
302 /* twl6040 codec manual power-down sequence */
303 static void twl6040_power_down(struct snd_soc_codec *codec)
305 u8 ncpctl, ldoctl, lppllctl, accctl;
307 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
308 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
309 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
310 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
312 /* enable internal oscillator */
313 ldoctl |= TWL6040_OSCENA;
314 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
316 /* disable low-power pll */
317 lppllctl &= ~TWL6040_LPLLENA;
318 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
319 /* disable low-side ldo */
320 ldoctl &= ~TWL6040_LSLDOENA;
321 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
323 /* disable negative charge pump */
324 ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN);
325 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
327 /* disable high-side ldo */
328 ldoctl &= ~TWL6040_HSLDOENA;
329 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
331 /* disable internal oscillator */
332 ldoctl &= ~TWL6040_OSCENA;
333 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
334 /* disable reference system */
335 ldoctl &= ~TWL6040_REFENA;
336 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
340 /* set headset dac and driver power mode */
341 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
344 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
346 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
347 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
357 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
358 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
363 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
364 struct snd_kcontrol *kcontrol, int event)
370 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
371 struct snd_kcontrol *kcontrol, int event)
373 struct snd_soc_codec *codec = w->codec;
374 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
376 if (SND_SOC_DAPM_EVENT_ON(event))
386 /* audio interrupt handler */
387 static irqreturn_t twl6040_naudint_handler(int irq, void *data)
389 struct snd_soc_codec *codec = data;
390 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
393 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID);
397 dev_alert(codec->dev, "die temp over-limit detection\n");
399 case TWL6040_PLUGINT:
400 case TWL6040_UNPLUGINT:
401 case TWL6040_HOOKINT:
404 dev_alert(codec->dev, "hf drivers over current detection\n");
407 dev_alert(codec->dev, "vib drivers over current detection\n");
409 case TWL6040_READYINT:
410 complete(&priv->ready);
413 dev_err(codec->dev, "unknown audio interrupt %d\n", intid);
421 * MICATT volume control:
422 * from -6 to 0 dB in 6 dB steps
424 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
427 * MICGAIN volume control:
428 * from 6 to 30 dB in 6 dB steps
430 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
433 * HSGAIN volume control:
434 * from -30 to 0 dB in 2 dB steps
436 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
439 * HFGAIN volume control:
440 * from -52 to 6 dB in 2 dB steps
442 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
445 * EPGAIN volume control:
446 * from -24 to 6 dB in 2 dB steps
448 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
450 /* Left analog microphone selection */
451 static const char *twl6040_amicl_texts[] =
452 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
454 /* Right analog microphone selection */
455 static const char *twl6040_amicr_texts[] =
456 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
458 static const struct soc_enum twl6040_enum[] = {
459 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 3, twl6040_amicl_texts),
460 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 3, twl6040_amicr_texts),
463 static const struct snd_kcontrol_new amicl_control =
464 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
466 static const struct snd_kcontrol_new amicr_control =
467 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
469 /* Headset DAC playback switches */
470 static const struct snd_kcontrol_new hsdacl_switch_controls =
471 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL, 5, 1, 0);
473 static const struct snd_kcontrol_new hsdacr_switch_controls =
474 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL, 5, 1, 0);
476 /* Handsfree DAC playback switches */
477 static const struct snd_kcontrol_new hfdacl_switch_controls =
478 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 2, 1, 0);
480 static const struct snd_kcontrol_new hfdacr_switch_controls =
481 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 2, 1, 0);
483 static const struct snd_kcontrol_new ep_driver_switch_controls =
484 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
486 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
488 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
489 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
490 SOC_DOUBLE_TLV("Capture Volume",
491 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
494 SOC_DOUBLE_TLV("Headset Playback Volume",
495 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
496 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
497 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
498 SOC_SINGLE_TLV("Earphone Playback Volume",
499 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
502 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
504 SND_SOC_DAPM_INPUT("MAINMIC"),
505 SND_SOC_DAPM_INPUT("HSMIC"),
506 SND_SOC_DAPM_INPUT("SUBMIC"),
507 SND_SOC_DAPM_INPUT("AFML"),
508 SND_SOC_DAPM_INPUT("AFMR"),
511 SND_SOC_DAPM_OUTPUT("HSOL"),
512 SND_SOC_DAPM_OUTPUT("HSOR"),
513 SND_SOC_DAPM_OUTPUT("HFL"),
514 SND_SOC_DAPM_OUTPUT("HFR"),
515 SND_SOC_DAPM_OUTPUT("EP"),
517 /* Analog input muxes for the capture amplifiers */
518 SND_SOC_DAPM_MUX("Analog Left Capture Route",
519 SND_SOC_NOPM, 0, 0, &amicl_control),
520 SND_SOC_DAPM_MUX("Analog Right Capture Route",
521 SND_SOC_NOPM, 0, 0, &amicr_control),
523 /* Analog capture PGAs */
524 SND_SOC_DAPM_PGA("MicAmpL",
525 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
526 SND_SOC_DAPM_PGA("MicAmpR",
527 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
530 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
531 TWL6040_REG_MICLCTL, 2, 0),
532 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
533 TWL6040_REG_MICRCTL, 2, 0),
535 /* Microphone bias */
536 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
537 TWL6040_REG_AMICBCTL, 0, 0),
538 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
539 TWL6040_REG_AMICBCTL, 4, 0),
540 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
541 TWL6040_REG_DMICBCTL, 0, 0),
542 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
543 TWL6040_REG_DMICBCTL, 4, 0),
546 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
547 TWL6040_REG_HSLCTL, 0, 0,
548 twl6040_hs_dac_event,
549 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
550 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
551 TWL6040_REG_HSRCTL, 0, 0,
552 twl6040_hs_dac_event,
553 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
554 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
555 TWL6040_REG_HFLCTL, 0, 0,
556 twl6040_power_mode_event,
557 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
558 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
559 TWL6040_REG_HFRCTL, 0, 0,
560 twl6040_power_mode_event,
561 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
563 /* Analog playback switches */
564 SND_SOC_DAPM_SWITCH("HSDAC Left Playback",
565 SND_SOC_NOPM, 0, 0, &hsdacl_switch_controls),
566 SND_SOC_DAPM_SWITCH("HSDAC Right Playback",
567 SND_SOC_NOPM, 0, 0, &hsdacr_switch_controls),
568 SND_SOC_DAPM_SWITCH("HFDAC Left Playback",
569 SND_SOC_NOPM, 0, 0, &hfdacl_switch_controls),
570 SND_SOC_DAPM_SWITCH("HFDAC Right Playback",
571 SND_SOC_NOPM, 0, 0, &hfdacr_switch_controls),
573 /* Analog playback drivers */
574 SND_SOC_DAPM_PGA_E("Handsfree Left Driver",
575 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
576 twl6040_power_mode_event,
577 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
578 SND_SOC_DAPM_PGA_E("Handsfree Right Driver",
579 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
580 twl6040_power_mode_event,
581 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
582 SND_SOC_DAPM_PGA("Headset Left Driver",
583 TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
584 SND_SOC_DAPM_PGA("Headset Right Driver",
585 TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
586 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
587 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
588 twl6040_power_mode_event,
589 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
591 /* Analog playback PGAs */
592 SND_SOC_DAPM_PGA("HFDAC Left PGA",
593 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
594 SND_SOC_DAPM_PGA("HFDAC Right PGA",
595 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
599 static const struct snd_soc_dapm_route intercon[] = {
601 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
602 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
603 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
605 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
606 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
607 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
609 {"MicAmpL", NULL, "Analog Left Capture Route"},
610 {"MicAmpR", NULL, "Analog Right Capture Route"},
612 {"ADC Left", NULL, "MicAmpL"},
613 {"ADC Right", NULL, "MicAmpR"},
615 /* Headset playback path */
616 {"HSDAC Left Playback", "Switch", "HSDAC Left"},
617 {"HSDAC Right Playback", "Switch", "HSDAC Right"},
619 {"Headset Left Driver", NULL, "HSDAC Left Playback"},
620 {"Headset Right Driver", NULL, "HSDAC Right Playback"},
622 {"HSOL", NULL, "Headset Left Driver"},
623 {"HSOR", NULL, "Headset Right Driver"},
625 /* Earphone playback path */
626 {"Earphone Driver", "Switch", "HSDAC Left"},
627 {"EP", NULL, "Earphone Driver"},
629 /* Handsfree playback path */
630 {"HFDAC Left Playback", "Switch", "HFDAC Left"},
631 {"HFDAC Right Playback", "Switch", "HFDAC Right"},
633 {"HFDAC Left PGA", NULL, "HFDAC Left Playback"},
634 {"HFDAC Right PGA", NULL, "HFDAC Right Playback"},
636 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
637 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
639 {"HFL", NULL, "Handsfree Left Driver"},
640 {"HFR", NULL, "Handsfree Right Driver"},
643 static int twl6040_add_widgets(struct snd_soc_codec *codec)
645 snd_soc_dapm_new_controls(codec, twl6040_dapm_widgets,
646 ARRAY_SIZE(twl6040_dapm_widgets));
648 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
650 snd_soc_dapm_new_widgets(codec);
655 static int twl6040_power_up_completion(struct snd_soc_codec *codec,
658 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
662 time_left = wait_for_completion_timeout(&priv->ready,
663 msecs_to_jiffies(48));
666 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid,
668 if (!(intid & TWL6040_READYINT)) {
669 dev_err(codec->dev, "timeout waiting for READYINT\n");
674 priv->codec_powered = 1;
679 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
680 enum snd_soc_bias_level level)
682 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
683 int audpwron = priv->audpwron;
684 int naudint = priv->naudint;
688 case SND_SOC_BIAS_ON:
690 case SND_SOC_BIAS_PREPARE:
692 case SND_SOC_BIAS_STANDBY:
693 if (priv->codec_powered)
696 if (gpio_is_valid(audpwron)) {
697 /* use AUDPWRON line */
698 gpio_set_value(audpwron, 1);
700 /* wait for power-up completion */
701 ret = twl6040_power_up_completion(codec, naudint);
705 /* sync registers updated during power-up sequence */
706 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
707 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
708 twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
710 /* use manual power-up sequence */
711 twl6040_power_up(codec);
712 priv->codec_powered = 1;
715 /* initialize vdd/vss registers with reg_cache */
716 twl6040_init_vdd_regs(codec);
718 case SND_SOC_BIAS_OFF:
719 if (!priv->codec_powered)
722 if (gpio_is_valid(audpwron)) {
723 /* use AUDPWRON line */
724 gpio_set_value(audpwron, 0);
726 /* power-down sequence latency */
729 /* sync registers updated during power-down sequence */
730 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
731 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
732 twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
735 /* use manual power-down sequence */
736 twl6040_power_down(codec);
739 priv->codec_powered = 0;
743 codec->bias_level = level;
748 /* set of rates for each pll: low-power and high-performance */
750 static unsigned int lp_rates[] = {
755 static struct snd_pcm_hw_constraint_list lp_constraints = {
756 .count = ARRAY_SIZE(lp_rates),
760 static unsigned int hp_rates[] = {
764 static struct snd_pcm_hw_constraint_list hp_constraints = {
765 .count = ARRAY_SIZE(hp_rates),
769 static int twl6040_startup(struct snd_pcm_substream *substream,
770 struct snd_soc_dai *dai)
772 struct snd_soc_pcm_runtime *rtd = substream->private_data;
773 struct snd_soc_device *socdev = rtd->socdev;
774 struct snd_soc_codec *codec = socdev->card->codec;
775 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
779 "no mclk configured, call set_sysclk() on init\n");
784 * capture is not supported at 17.64 MHz,
785 * it's reserved for headset low-power playback scenario
787 if ((priv->sysclk == 17640000) && substream->stream) {
789 "capture mode is not supported at %dHz\n",
794 snd_pcm_hw_constraint_list(substream->runtime, 0,
795 SNDRV_PCM_HW_PARAM_RATE,
796 priv->sysclk_constraints);
801 static int twl6040_hw_params(struct snd_pcm_substream *substream,
802 struct snd_pcm_hw_params *params,
803 struct snd_soc_dai *dai)
805 struct snd_soc_pcm_runtime *rtd = substream->private_data;
806 struct snd_soc_device *socdev = rtd->socdev;
807 struct snd_soc_codec *codec = socdev->card->codec;
808 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
812 /* nothing to do for high-perf pll, it supports only 48 kHz */
813 if (priv->pll == TWL6040_HPPLL_ID)
816 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
818 rate = params_rate(params);
821 lppllctl |= TWL6040_LPLLFIN;
822 priv->sysclk = 17640000;
825 lppllctl &= ~TWL6040_LPLLFIN;
826 priv->sysclk = 19200000;
829 dev_err(codec->dev, "unsupported rate %d\n", rate);
833 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
838 static int twl6040_trigger(struct snd_pcm_substream *substream,
839 int cmd, struct snd_soc_dai *dai)
841 struct snd_soc_pcm_runtime *rtd = substream->private_data;
842 struct snd_soc_device *socdev = rtd->socdev;
843 struct snd_soc_codec *codec = socdev->card->codec;
844 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
847 case SNDRV_PCM_TRIGGER_START:
848 case SNDRV_PCM_TRIGGER_RESUME:
850 * low-power playback mode is restricted
851 * for headset path only
853 if ((priv->sysclk == 17640000) && priv->non_lp) {
855 "some enabled paths aren't supported at %dHz\n",
867 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
868 int clk_id, unsigned int freq, int dir)
870 struct snd_soc_codec *codec = codec_dai->codec;
871 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
872 u8 hppllctl, lppllctl;
874 hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL);
875 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
878 case TWL6040_SYSCLK_SEL_LPPLL:
881 /* headset dac and driver must be in low-power mode */
882 headset_power_mode(codec, 0);
884 /* clk32k input requires low-power pll */
885 lppllctl |= TWL6040_LPLLENA;
886 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
888 lppllctl &= ~TWL6040_HPLLSEL;
889 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
890 hppllctl &= ~TWL6040_HPLLENA;
891 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
894 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
899 switch (priv->sysclk) {
901 lppllctl |= TWL6040_LPLLFIN;
904 lppllctl &= ~TWL6040_LPLLFIN;
907 /* sysclk not yet configured */
908 lppllctl &= ~TWL6040_LPLLFIN;
909 priv->sysclk = 19200000;
913 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
915 priv->pll = TWL6040_LPPLL_ID;
916 priv->sysclk_constraints = &lp_constraints;
918 case TWL6040_SYSCLK_SEL_HPPLL:
919 hppllctl &= ~TWL6040_MCLK_MSK;
923 /* mclk input, pll enabled */
924 hppllctl |= TWL6040_MCLK_12000KHZ |
929 /* mclk input, pll disabled */
930 hppllctl |= TWL6040_MCLK_19200KHZ |
935 /* mclk input, pll enabled */
936 hppllctl |= TWL6040_MCLK_26000KHZ |
941 /* clk slicer, pll disabled */
942 hppllctl |= TWL6040_MCLK_38400KHZ |
947 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
951 /* headset dac and driver must be in high-performance mode */
952 headset_power_mode(codec, 1);
954 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
956 lppllctl |= TWL6040_HPLLSEL;
957 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
958 lppllctl &= ~TWL6040_LPLLENA;
959 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
961 /* high-performance pll can provide only 19.2 MHz */
962 priv->pll = TWL6040_HPPLL_ID;
963 priv->sysclk = 19200000;
964 priv->sysclk_constraints = &hp_constraints;
967 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
974 static struct snd_soc_dai_ops twl6040_dai_ops = {
975 .startup = twl6040_startup,
976 .hw_params = twl6040_hw_params,
977 .trigger = twl6040_trigger,
978 .set_sysclk = twl6040_set_dai_sysclk,
981 struct snd_soc_dai twl6040_dai = {
984 .stream_name = "Playback",
987 .rates = TWL6040_RATES,
988 .formats = TWL6040_FORMATS,
991 .stream_name = "Capture",
994 .rates = TWL6040_RATES,
995 .formats = TWL6040_FORMATS,
997 .ops = &twl6040_dai_ops,
999 EXPORT_SYMBOL_GPL(twl6040_dai);
1002 static int twl6040_suspend(struct platform_device *pdev, pm_message_t state)
1004 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1005 struct snd_soc_codec *codec = socdev->card->codec;
1007 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1012 static int twl6040_resume(struct platform_device *pdev)
1014 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1015 struct snd_soc_codec *codec = socdev->card->codec;
1017 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1022 #define twl6040_suspend NULL
1023 #define twl6040_resume NULL
1026 static struct snd_soc_codec *twl6040_codec;
1028 static int twl6040_probe(struct platform_device *pdev)
1030 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1031 struct snd_soc_codec *codec;
1034 BUG_ON(!twl6040_codec);
1036 codec = twl6040_codec;
1037 socdev->card->codec = codec;
1040 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1042 dev_err(&pdev->dev, "failed to create pcms\n");
1046 snd_soc_add_controls(codec, twl6040_snd_controls,
1047 ARRAY_SIZE(twl6040_snd_controls));
1048 twl6040_add_widgets(codec);
1051 dev_err(&pdev->dev, "failed to register card\n");
1058 snd_soc_free_pcms(socdev);
1059 snd_soc_dapm_free(socdev);
1063 static int twl6040_remove(struct platform_device *pdev)
1065 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1066 struct snd_soc_codec *codec = socdev->card->codec;
1068 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1069 snd_soc_free_pcms(socdev);
1070 snd_soc_dapm_free(socdev);
1076 struct snd_soc_codec_device soc_codec_dev_twl6040 = {
1077 .probe = twl6040_probe,
1078 .remove = twl6040_remove,
1079 .suspend = twl6040_suspend,
1080 .resume = twl6040_resume,
1082 EXPORT_SYMBOL_GPL(soc_codec_dev_twl6040);
1084 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1086 struct twl4030_codec_data *twl_codec = pdev->dev.platform_data;
1087 struct snd_soc_codec *codec;
1088 struct twl6040_data *priv;
1089 int audpwron, naudint;
1092 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1097 audpwron = twl_codec->audpwron_gpio;
1098 naudint = twl_codec->naudint_irq;
1104 priv->audpwron = audpwron;
1105 priv->naudint = naudint;
1107 codec = &priv->codec;
1108 codec->dev = &pdev->dev;
1109 twl6040_dai.dev = &pdev->dev;
1111 codec->name = "twl6040";
1112 codec->owner = THIS_MODULE;
1113 codec->read = twl6040_read_reg_cache;
1114 codec->write = twl6040_write;
1115 codec->set_bias_level = twl6040_set_bias_level;
1116 snd_soc_codec_set_drvdata(codec, priv);
1117 codec->dai = &twl6040_dai;
1119 codec->reg_cache_size = ARRAY_SIZE(twl6040_reg);
1120 codec->reg_cache = kmemdup(twl6040_reg, sizeof(twl6040_reg),
1122 if (codec->reg_cache == NULL) {
1127 mutex_init(&codec->mutex);
1128 INIT_LIST_HEAD(&codec->dapm_widgets);
1129 INIT_LIST_HEAD(&codec->dapm_paths);
1130 init_completion(&priv->ready);
1132 if (gpio_is_valid(audpwron)) {
1133 ret = gpio_request(audpwron, "audpwron");
1137 ret = gpio_direction_output(audpwron, 0);
1141 priv->codec_powered = 0;
1145 /* audio interrupt */
1146 ret = request_threaded_irq(naudint, NULL,
1147 twl6040_naudint_handler,
1148 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1149 "twl6040_codec", codec);
1153 if (gpio_is_valid(audpwron)) {
1154 /* enable only codec ready interrupt */
1155 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1156 ~TWL6040_READYMSK & TWL6040_ALLINT_MSK);
1158 /* no interrupts at all */
1159 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1160 TWL6040_ALLINT_MSK);
1164 /* init vio registers */
1165 twl6040_init_vio_regs(codec);
1167 /* power on device */
1168 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1172 ret = snd_soc_register_codec(codec);
1176 twl6040_codec = codec;
1178 ret = snd_soc_register_dai(&twl6040_dai);
1185 snd_soc_unregister_codec(codec);
1186 twl6040_codec = NULL;
1188 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1191 free_irq(naudint, codec);
1193 if (gpio_is_valid(audpwron))
1194 gpio_free(audpwron);
1196 kfree(codec->reg_cache);
1202 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1204 struct twl6040_data *priv = snd_soc_codec_get_drvdata(twl6040_codec);
1205 int audpwron = priv->audpwron;
1206 int naudint = priv->naudint;
1208 if (gpio_is_valid(audpwron))
1209 gpio_free(audpwron);
1212 free_irq(naudint, twl6040_codec);
1214 snd_soc_unregister_dai(&twl6040_dai);
1215 snd_soc_unregister_codec(twl6040_codec);
1217 kfree(twl6040_codec);
1218 twl6040_codec = NULL;
1223 static struct platform_driver twl6040_codec_driver = {
1225 .name = "twl6040_codec",
1226 .owner = THIS_MODULE,
1228 .probe = twl6040_codec_probe,
1229 .remove = __devexit_p(twl6040_codec_remove),
1232 static int __init twl6040_codec_init(void)
1234 return platform_driver_register(&twl6040_codec_driver);
1236 module_init(twl6040_codec_init);
1238 static void __exit twl6040_codec_exit(void)
1240 platform_driver_unregister(&twl6040_codec_driver);
1242 module_exit(twl6040_codec_exit);
1244 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1245 MODULE_AUTHOR("Misael Lopez Cruz");
1246 MODULE_LICENSE("GPL");