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 */
54 struct snd_pcm_hw_constraint_list
*sysclk_constraints
;
55 struct completion ready
;
59 * twl6040 register cache & default register settings
61 static const u8 twl6040_reg
[TWL6040_CACHEREGNUM
] = {
62 0x00, /* not used 0x00 */
63 0x4B, /* TWL6040_ASICID (ro) 0x01 */
64 0x00, /* TWL6040_ASICREV (ro) 0x02 */
65 0x00, /* TWL6040_INTID 0x03 */
66 0x00, /* TWL6040_INTMR 0x04 */
67 0x00, /* TWL6040_NCPCTRL 0x05 */
68 0x00, /* TWL6040_LDOCTL 0x06 */
69 0x60, /* TWL6040_HPPLLCTL 0x07 */
70 0x00, /* TWL6040_LPPLLCTL 0x08 */
71 0x4A, /* TWL6040_LPPLLDIV 0x09 */
72 0x00, /* TWL6040_AMICBCTL 0x0A */
73 0x00, /* TWL6040_DMICBCTL 0x0B */
74 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
75 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
76 0x00, /* TWL6040_MICGAIN 0x0E */
77 0x1B, /* TWL6040_LINEGAIN 0x0F */
78 0x00, /* TWL6040_HSLCTL 0x10 */
79 0x00, /* TWL6040_HSRCTL 0x11 */
80 0x00, /* TWL6040_HSGAIN 0x12 */
81 0x00, /* TWL6040_EARCTL 0x13 */
82 0x00, /* TWL6040_HFLCTL 0x14 */
83 0x00, /* TWL6040_HFLGAIN 0x15 */
84 0x00, /* TWL6040_HFRCTL 0x16 */
85 0x00, /* TWL6040_HFRGAIN 0x17 */
86 0x00, /* TWL6040_VIBCTLL 0x18 */
87 0x00, /* TWL6040_VIBDATL 0x19 */
88 0x00, /* TWL6040_VIBCTLR 0x1A */
89 0x00, /* TWL6040_VIBDATR 0x1B */
90 0x00, /* TWL6040_HKCTL1 0x1C */
91 0x00, /* TWL6040_HKCTL2 0x1D */
92 0x00, /* TWL6040_GPOCTL 0x1E */
93 0x00, /* TWL6040_ALB 0x1F */
94 0x00, /* TWL6040_DLB 0x20 */
95 0x00, /* not used 0x21 */
96 0x00, /* not used 0x22 */
97 0x00, /* not used 0x23 */
98 0x00, /* not used 0x24 */
99 0x00, /* not used 0x25 */
100 0x00, /* not used 0x26 */
101 0x00, /* not used 0x27 */
102 0x00, /* TWL6040_TRIM1 0x28 */
103 0x00, /* TWL6040_TRIM2 0x29 */
104 0x00, /* TWL6040_TRIM3 0x2A */
105 0x00, /* TWL6040_HSOTRIM 0x2B */
106 0x00, /* TWL6040_HFOTRIM 0x2C */
107 0x09, /* TWL6040_ACCCTL 0x2D */
108 0x00, /* TWL6040_STATUS (ro) 0x2E */
112 * twl6040 vio/gnd registers:
113 * registers under vio/gnd supply can be accessed
114 * before the power-up sequence, after NRESPWRON goes high
116 static const int twl6040_vio_reg
[TWL6040_VIOREGNUM
] = {
123 TWL6040_REG_AMICBCTL
,
124 TWL6040_REG_DMICBCTL
,
138 * twl6040 vdd/vss registers:
139 * registers under vdd/vss supplies can only be accessed
140 * after the power-up sequence
142 static const int twl6040_vdd_reg
[TWL6040_VDDREGNUM
] = {
143 TWL6040_REG_HPPLLCTL
,
144 TWL6040_REG_LPPLLCTL
,
145 TWL6040_REG_LPPLLDIV
,
149 TWL6040_REG_LINEGAIN
,
167 * read twl6040 register cache
169 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec
*codec
,
172 u8
*cache
= codec
->reg_cache
;
174 if (reg
>= TWL6040_CACHEREGNUM
)
181 * write twl6040 register cache
183 static inline void twl6040_write_reg_cache(struct snd_soc_codec
*codec
,
186 u8
*cache
= codec
->reg_cache
;
188 if (reg
>= TWL6040_CACHEREGNUM
)
194 * read from twl6040 hardware register
196 static int twl6040_read_reg_volatile(struct snd_soc_codec
*codec
,
201 if (reg
>= TWL6040_CACHEREGNUM
)
204 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE
, &value
, reg
);
205 twl6040_write_reg_cache(codec
, reg
, value
);
211 * write to the twl6040 register space
213 static int twl6040_write(struct snd_soc_codec
*codec
,
214 unsigned int reg
, unsigned int value
)
216 if (reg
>= TWL6040_CACHEREGNUM
)
219 twl6040_write_reg_cache(codec
, reg
, value
);
220 return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE
, value
, reg
);
223 static void twl6040_init_vio_regs(struct snd_soc_codec
*codec
)
225 u8
*cache
= codec
->reg_cache
;
228 /* allow registers to be accessed by i2c */
229 twl6040_write(codec
, TWL6040_REG_ACCCTL
, cache
[TWL6040_REG_ACCCTL
]);
231 for (i
= 0; i
< TWL6040_VIOREGNUM
; i
++) {
232 reg
= twl6040_vio_reg
[i
];
233 /* skip read-only registers (ASICID, ASICREV, STATUS) */
235 case TWL6040_REG_ASICID
:
236 case TWL6040_REG_ASICREV
:
237 case TWL6040_REG_STATUS
:
242 twl6040_write(codec
, reg
, cache
[reg
]);
246 static void twl6040_init_vdd_regs(struct snd_soc_codec
*codec
)
248 u8
*cache
= codec
->reg_cache
;
251 for (i
= 0; i
< TWL6040_VDDREGNUM
; i
++) {
252 reg
= twl6040_vdd_reg
[i
];
253 twl6040_write(codec
, reg
, cache
[reg
]);
257 /* twl6040 codec manual power-up sequence */
258 static void twl6040_power_up(struct snd_soc_codec
*codec
)
260 u8 ncpctl
, ldoctl
, lppllctl
, accctl
;
262 ncpctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_NCPCTL
);
263 ldoctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LDOCTL
);
264 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
265 accctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_ACCCTL
);
267 /* enable reference system */
268 ldoctl
|= TWL6040_REFENA
;
269 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
271 /* enable internal oscillator */
272 ldoctl
|= TWL6040_OSCENA
;
273 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
275 /* enable high-side ldo */
276 ldoctl
|= TWL6040_HSLDOENA
;
277 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
279 /* enable negative charge pump */
280 ncpctl
|= TWL6040_NCPENA
| TWL6040_NCPOPEN
;
281 twl6040_write(codec
, TWL6040_REG_NCPCTL
, ncpctl
);
283 /* enable low-side ldo */
284 ldoctl
|= TWL6040_LSLDOENA
;
285 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
287 /* enable low-power pll */
288 lppllctl
|= TWL6040_LPLLENA
;
289 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
290 /* reset state machine */
291 accctl
|= TWL6040_RESETSPLIT
;
292 twl6040_write(codec
, TWL6040_REG_ACCCTL
, accctl
);
294 accctl
&= ~TWL6040_RESETSPLIT
;
295 twl6040_write(codec
, TWL6040_REG_ACCCTL
, accctl
);
296 /* disable internal oscillator */
297 ldoctl
&= ~TWL6040_OSCENA
;
298 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
301 /* twl6040 codec manual power-down sequence */
302 static void twl6040_power_down(struct snd_soc_codec
*codec
)
304 u8 ncpctl
, ldoctl
, lppllctl
, accctl
;
306 ncpctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_NCPCTL
);
307 ldoctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LDOCTL
);
308 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
309 accctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_ACCCTL
);
311 /* enable internal oscillator */
312 ldoctl
|= TWL6040_OSCENA
;
313 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
315 /* disable low-power pll */
316 lppllctl
&= ~TWL6040_LPLLENA
;
317 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
318 /* disable low-side ldo */
319 ldoctl
&= ~TWL6040_LSLDOENA
;
320 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
322 /* disable negative charge pump */
323 ncpctl
&= ~(TWL6040_NCPENA
| TWL6040_NCPOPEN
);
324 twl6040_write(codec
, TWL6040_REG_NCPCTL
, ncpctl
);
326 /* disable high-side ldo */
327 ldoctl
&= ~TWL6040_HSLDOENA
;
328 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
330 /* disable internal oscillator */
331 ldoctl
&= ~TWL6040_OSCENA
;
332 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
333 /* disable reference system */
334 ldoctl
&= ~TWL6040_REFENA
;
335 twl6040_write(codec
, TWL6040_REG_LDOCTL
, ldoctl
);
339 /* set headset dac and driver power mode */
340 static int headset_power_mode(struct snd_soc_codec
*codec
, int high_perf
)
343 int mask
= TWL6040_HSDRVMODEL
| TWL6040_HSDACMODEL
;
345 hslctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_HSLCTL
);
346 hsrctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_HSRCTL
);
356 twl6040_write(codec
, TWL6040_REG_HSLCTL
, hslctl
);
357 twl6040_write(codec
, TWL6040_REG_HSRCTL
, hsrctl
);
362 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget
*w
,
363 struct snd_kcontrol
*kcontrol
, int event
)
369 static int twl6040_power_mode_event(struct snd_soc_dapm_widget
*w
,
370 struct snd_kcontrol
*kcontrol
, int event
)
372 struct snd_soc_codec
*codec
= w
->codec
;
373 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
375 if (SND_SOC_DAPM_EVENT_ON(event
))
385 /* audio interrupt handler */
386 static irqreturn_t
twl6040_naudint_handler(int irq
, void *data
)
388 struct snd_soc_codec
*codec
= data
;
389 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
392 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE
, &intid
, TWL6040_REG_INTID
);
396 dev_alert(codec
->dev
, "die temp over-limit detection\n");
398 case TWL6040_PLUGINT
:
399 case TWL6040_UNPLUGINT
:
400 case TWL6040_HOOKINT
:
403 dev_alert(codec
->dev
, "hf drivers over current detection\n");
406 dev_alert(codec
->dev
, "vib drivers over current detection\n");
408 case TWL6040_READYINT
:
409 complete(&priv
->ready
);
412 dev_err(codec
->dev
, "unknown audio interrupt %d\n", intid
);
420 * MICATT volume control:
421 * from -6 to 0 dB in 6 dB steps
423 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv
, -600, 600, 0);
426 * MICGAIN volume control:
427 * from 6 to 30 dB in 6 dB steps
429 static DECLARE_TLV_DB_SCALE(mic_amp_tlv
, 600, 600, 0);
432 * HSGAIN volume control:
433 * from -30 to 0 dB in 2 dB steps
435 static DECLARE_TLV_DB_SCALE(hs_tlv
, -3000, 200, 0);
438 * HFGAIN volume control:
439 * from -52 to 6 dB in 2 dB steps
441 static DECLARE_TLV_DB_SCALE(hf_tlv
, -5200, 200, 0);
444 * EPGAIN volume control:
445 * from -24 to 6 dB in 2 dB steps
447 static DECLARE_TLV_DB_SCALE(ep_tlv
, -2400, 200, 0);
449 /* Left analog microphone selection */
450 static const char *twl6040_amicl_texts
[] =
451 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
453 /* Right analog microphone selection */
454 static const char *twl6040_amicr_texts
[] =
455 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
457 static const struct soc_enum twl6040_enum
[] = {
458 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL
, 3, 3, twl6040_amicl_texts
),
459 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL
, 3, 3, twl6040_amicr_texts
),
462 static const struct snd_kcontrol_new amicl_control
=
463 SOC_DAPM_ENUM("Route", twl6040_enum
[0]);
465 static const struct snd_kcontrol_new amicr_control
=
466 SOC_DAPM_ENUM("Route", twl6040_enum
[1]);
468 /* Headset DAC playback switches */
469 static const struct snd_kcontrol_new hsdacl_switch_controls
=
470 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL
, 5, 1, 0);
472 static const struct snd_kcontrol_new hsdacr_switch_controls
=
473 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL
, 5, 1, 0);
475 /* Handsfree DAC playback switches */
476 static const struct snd_kcontrol_new hfdacl_switch_controls
=
477 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL
, 2, 1, 0);
479 static const struct snd_kcontrol_new hfdacr_switch_controls
=
480 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL
, 2, 1, 0);
482 static const struct snd_kcontrol_new ep_driver_switch_controls
=
483 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL
, 0, 1, 0);
485 static const struct snd_kcontrol_new twl6040_snd_controls
[] = {
487 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
488 TWL6040_REG_MICGAIN
, 6, 7, 1, 1, mic_preamp_tlv
),
489 SOC_DOUBLE_TLV("Capture Volume",
490 TWL6040_REG_MICGAIN
, 0, 3, 4, 0, mic_amp_tlv
),
493 SOC_DOUBLE_TLV("Headset Playback Volume",
494 TWL6040_REG_HSGAIN
, 0, 4, 0xF, 1, hs_tlv
),
495 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
496 TWL6040_REG_HFLGAIN
, TWL6040_REG_HFRGAIN
, 0, 0x1D, 1, hf_tlv
),
497 SOC_SINGLE_TLV("Earphone Playback Volume",
498 TWL6040_REG_EARCTL
, 1, 0xF, 1, ep_tlv
),
501 static const struct snd_soc_dapm_widget twl6040_dapm_widgets
[] = {
503 SND_SOC_DAPM_INPUT("MAINMIC"),
504 SND_SOC_DAPM_INPUT("HSMIC"),
505 SND_SOC_DAPM_INPUT("SUBMIC"),
506 SND_SOC_DAPM_INPUT("AFML"),
507 SND_SOC_DAPM_INPUT("AFMR"),
510 SND_SOC_DAPM_OUTPUT("HSOL"),
511 SND_SOC_DAPM_OUTPUT("HSOR"),
512 SND_SOC_DAPM_OUTPUT("HFL"),
513 SND_SOC_DAPM_OUTPUT("HFR"),
514 SND_SOC_DAPM_OUTPUT("EP"),
516 /* Analog input muxes for the capture amplifiers */
517 SND_SOC_DAPM_MUX("Analog Left Capture Route",
518 SND_SOC_NOPM
, 0, 0, &amicl_control
),
519 SND_SOC_DAPM_MUX("Analog Right Capture Route",
520 SND_SOC_NOPM
, 0, 0, &amicr_control
),
522 /* Analog capture PGAs */
523 SND_SOC_DAPM_PGA("MicAmpL",
524 TWL6040_REG_MICLCTL
, 0, 0, NULL
, 0),
525 SND_SOC_DAPM_PGA("MicAmpR",
526 TWL6040_REG_MICRCTL
, 0, 0, NULL
, 0),
529 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
530 TWL6040_REG_MICLCTL
, 2, 0),
531 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
532 TWL6040_REG_MICRCTL
, 2, 0),
534 /* Microphone bias */
535 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
536 TWL6040_REG_AMICBCTL
, 0, 0),
537 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
538 TWL6040_REG_AMICBCTL
, 4, 0),
539 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
540 TWL6040_REG_DMICBCTL
, 0, 0),
541 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
542 TWL6040_REG_DMICBCTL
, 4, 0),
545 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
546 TWL6040_REG_HSLCTL
, 0, 0,
547 twl6040_hs_dac_event
,
548 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
549 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
550 TWL6040_REG_HSRCTL
, 0, 0,
551 twl6040_hs_dac_event
,
552 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
553 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
554 TWL6040_REG_HFLCTL
, 0, 0,
555 twl6040_power_mode_event
,
556 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
557 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
558 TWL6040_REG_HFRCTL
, 0, 0,
559 twl6040_power_mode_event
,
560 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
562 /* Analog playback switches */
563 SND_SOC_DAPM_SWITCH("HSDAC Left Playback",
564 SND_SOC_NOPM
, 0, 0, &hsdacl_switch_controls
),
565 SND_SOC_DAPM_SWITCH("HSDAC Right Playback",
566 SND_SOC_NOPM
, 0, 0, &hsdacr_switch_controls
),
567 SND_SOC_DAPM_SWITCH("HFDAC Left Playback",
568 SND_SOC_NOPM
, 0, 0, &hfdacl_switch_controls
),
569 SND_SOC_DAPM_SWITCH("HFDAC Right Playback",
570 SND_SOC_NOPM
, 0, 0, &hfdacr_switch_controls
),
572 /* Analog playback drivers */
573 SND_SOC_DAPM_PGA_E("Handsfree Left Driver",
574 TWL6040_REG_HFLCTL
, 4, 0, NULL
, 0,
575 twl6040_power_mode_event
,
576 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
577 SND_SOC_DAPM_PGA_E("Handsfree Right Driver",
578 TWL6040_REG_HFRCTL
, 4, 0, NULL
, 0,
579 twl6040_power_mode_event
,
580 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
581 SND_SOC_DAPM_PGA("Headset Left Driver",
582 TWL6040_REG_HSLCTL
, 2, 0, NULL
, 0),
583 SND_SOC_DAPM_PGA("Headset Right Driver",
584 TWL6040_REG_HSRCTL
, 2, 0, NULL
, 0),
585 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
586 SND_SOC_NOPM
, 0, 0, &ep_driver_switch_controls
,
587 twl6040_power_mode_event
,
588 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
590 /* Analog playback PGAs */
591 SND_SOC_DAPM_PGA("HFDAC Left PGA",
592 TWL6040_REG_HFLCTL
, 1, 0, NULL
, 0),
593 SND_SOC_DAPM_PGA("HFDAC Right PGA",
594 TWL6040_REG_HFRCTL
, 1, 0, NULL
, 0),
598 static const struct snd_soc_dapm_route intercon
[] = {
600 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
601 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
602 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
604 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
605 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
606 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
608 {"MicAmpL", NULL
, "Analog Left Capture Route"},
609 {"MicAmpR", NULL
, "Analog Right Capture Route"},
611 {"ADC Left", NULL
, "MicAmpL"},
612 {"ADC Right", NULL
, "MicAmpR"},
614 /* Headset playback path */
615 {"HSDAC Left Playback", "Switch", "HSDAC Left"},
616 {"HSDAC Right Playback", "Switch", "HSDAC Right"},
618 {"Headset Left Driver", NULL
, "HSDAC Left Playback"},
619 {"Headset Right Driver", NULL
, "HSDAC Right Playback"},
621 {"HSOL", NULL
, "Headset Left Driver"},
622 {"HSOR", NULL
, "Headset Right Driver"},
624 /* Earphone playback path */
625 {"Earphone Driver", "Switch", "HSDAC Left"},
626 {"EP", NULL
, "Earphone Driver"},
628 /* Handsfree playback path */
629 {"HFDAC Left Playback", "Switch", "HFDAC Left"},
630 {"HFDAC Right Playback", "Switch", "HFDAC Right"},
632 {"HFDAC Left PGA", NULL
, "HFDAC Left Playback"},
633 {"HFDAC Right PGA", NULL
, "HFDAC Right Playback"},
635 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
636 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
638 {"HFL", NULL
, "Handsfree Left Driver"},
639 {"HFR", NULL
, "Handsfree Right Driver"},
642 static int twl6040_add_widgets(struct snd_soc_codec
*codec
)
644 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
646 snd_soc_dapm_new_controls(dapm
, twl6040_dapm_widgets
,
647 ARRAY_SIZE(twl6040_dapm_widgets
));
648 snd_soc_dapm_add_routes(dapm
, intercon
, ARRAY_SIZE(intercon
));
649 snd_soc_dapm_new_widgets(dapm
);
654 static int twl6040_power_up_completion(struct snd_soc_codec
*codec
,
657 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
661 time_left
= wait_for_completion_timeout(&priv
->ready
,
662 msecs_to_jiffies(48));
665 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE
, &intid
,
667 if (!(intid
& TWL6040_READYINT
)) {
668 dev_err(codec
->dev
, "timeout waiting for READYINT\n");
673 priv
->codec_powered
= 1;
678 static int twl6040_set_bias_level(struct snd_soc_codec
*codec
,
679 enum snd_soc_bias_level level
)
681 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
682 int audpwron
= priv
->audpwron
;
683 int naudint
= priv
->naudint
;
687 case SND_SOC_BIAS_ON
:
689 case SND_SOC_BIAS_PREPARE
:
691 case SND_SOC_BIAS_STANDBY
:
692 if (priv
->codec_powered
)
695 if (gpio_is_valid(audpwron
)) {
696 /* use AUDPWRON line */
697 gpio_set_value(audpwron
, 1);
699 /* wait for power-up completion */
700 ret
= twl6040_power_up_completion(codec
, naudint
);
704 /* sync registers updated during power-up sequence */
705 twl6040_read_reg_volatile(codec
, TWL6040_REG_NCPCTL
);
706 twl6040_read_reg_volatile(codec
, TWL6040_REG_LDOCTL
);
707 twl6040_read_reg_volatile(codec
, TWL6040_REG_LPPLLCTL
);
709 /* use manual power-up sequence */
710 twl6040_power_up(codec
);
711 priv
->codec_powered
= 1;
714 /* initialize vdd/vss registers with reg_cache */
715 twl6040_init_vdd_regs(codec
);
717 case SND_SOC_BIAS_OFF
:
718 if (!priv
->codec_powered
)
721 if (gpio_is_valid(audpwron
)) {
722 /* use AUDPWRON line */
723 gpio_set_value(audpwron
, 0);
725 /* power-down sequence latency */
728 /* sync registers updated during power-down sequence */
729 twl6040_read_reg_volatile(codec
, TWL6040_REG_NCPCTL
);
730 twl6040_read_reg_volatile(codec
, TWL6040_REG_LDOCTL
);
731 twl6040_write_reg_cache(codec
, TWL6040_REG_LPPLLCTL
,
734 /* use manual power-down sequence */
735 twl6040_power_down(codec
);
738 priv
->codec_powered
= 0;
742 codec
->dapm
.bias_level
= level
;
747 /* set of rates for each pll: low-power and high-performance */
749 static unsigned int lp_rates
[] = {
754 static struct snd_pcm_hw_constraint_list lp_constraints
= {
755 .count
= ARRAY_SIZE(lp_rates
),
759 static unsigned int hp_rates
[] = {
763 static struct snd_pcm_hw_constraint_list hp_constraints
= {
764 .count
= ARRAY_SIZE(hp_rates
),
768 static int twl6040_startup(struct snd_pcm_substream
*substream
,
769 struct snd_soc_dai
*dai
)
771 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
772 struct snd_soc_codec
*codec
= rtd
->codec
;
773 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
777 "no mclk configured, call set_sysclk() on init\n");
782 * capture is not supported at 17.64 MHz,
783 * it's reserved for headset low-power playback scenario
785 if ((priv
->sysclk
== 17640000) && substream
->stream
) {
787 "capture mode is not supported at %dHz\n",
792 snd_pcm_hw_constraint_list(substream
->runtime
, 0,
793 SNDRV_PCM_HW_PARAM_RATE
,
794 priv
->sysclk_constraints
);
799 static int twl6040_hw_params(struct snd_pcm_substream
*substream
,
800 struct snd_pcm_hw_params
*params
,
801 struct snd_soc_dai
*dai
)
803 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
804 struct snd_soc_codec
*codec
= rtd
->codec
;
805 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
809 /* nothing to do for high-perf pll, it supports only 48 kHz */
810 if (priv
->pll
== TWL6040_HPPLL_ID
)
813 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
815 rate
= params_rate(params
);
818 lppllctl
|= TWL6040_LPLLFIN
;
819 priv
->sysclk
= 17640000;
822 lppllctl
&= ~TWL6040_LPLLFIN
;
823 priv
->sysclk
= 19200000;
826 dev_err(codec
->dev
, "unsupported rate %d\n", rate
);
830 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
835 static int twl6040_trigger(struct snd_pcm_substream
*substream
,
836 int cmd
, struct snd_soc_dai
*dai
)
838 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
839 struct snd_soc_codec
*codec
= rtd
->codec
;
840 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
843 case SNDRV_PCM_TRIGGER_START
:
844 case SNDRV_PCM_TRIGGER_RESUME
:
846 * low-power playback mode is restricted
847 * for headset path only
849 if ((priv
->sysclk
== 17640000) && priv
->non_lp
) {
851 "some enabled paths aren't supported at %dHz\n",
863 static int twl6040_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
864 int clk_id
, unsigned int freq
, int dir
)
866 struct snd_soc_codec
*codec
= codec_dai
->codec
;
867 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
868 u8 hppllctl
, lppllctl
;
870 hppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_HPPLLCTL
);
871 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
874 case TWL6040_SYSCLK_SEL_LPPLL
:
877 /* headset dac and driver must be in low-power mode */
878 headset_power_mode(codec
, 0);
880 /* clk32k input requires low-power pll */
881 lppllctl
|= TWL6040_LPLLENA
;
882 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
884 lppllctl
&= ~TWL6040_HPLLSEL
;
885 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
886 hppllctl
&= ~TWL6040_HPLLENA
;
887 twl6040_write(codec
, TWL6040_REG_HPPLLCTL
, hppllctl
);
890 dev_err(codec
->dev
, "unknown mclk freq %d\n", freq
);
895 switch (priv
->sysclk
) {
897 lppllctl
|= TWL6040_LPLLFIN
;
900 lppllctl
&= ~TWL6040_LPLLFIN
;
903 /* sysclk not yet configured */
904 lppllctl
&= ~TWL6040_LPLLFIN
;
905 priv
->sysclk
= 19200000;
909 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
911 priv
->pll
= TWL6040_LPPLL_ID
;
912 priv
->sysclk_constraints
= &lp_constraints
;
914 case TWL6040_SYSCLK_SEL_HPPLL
:
915 hppllctl
&= ~TWL6040_MCLK_MSK
;
919 /* mclk input, pll enabled */
920 hppllctl
|= TWL6040_MCLK_12000KHZ
|
925 /* mclk input, pll disabled */
926 hppllctl
|= TWL6040_MCLK_19200KHZ
|
931 /* mclk input, pll enabled */
932 hppllctl
|= TWL6040_MCLK_26000KHZ
|
937 /* clk slicer, pll disabled */
938 hppllctl
|= TWL6040_MCLK_38400KHZ
|
943 dev_err(codec
->dev
, "unknown mclk freq %d\n", freq
);
947 /* headset dac and driver must be in high-performance mode */
948 headset_power_mode(codec
, 1);
950 twl6040_write(codec
, TWL6040_REG_HPPLLCTL
, hppllctl
);
952 lppllctl
|= TWL6040_HPLLSEL
;
953 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
954 lppllctl
&= ~TWL6040_LPLLENA
;
955 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
957 /* high-performance pll can provide only 19.2 MHz */
958 priv
->pll
= TWL6040_HPPLL_ID
;
959 priv
->sysclk
= 19200000;
960 priv
->sysclk_constraints
= &hp_constraints
;
963 dev_err(codec
->dev
, "unknown clk_id %d\n", clk_id
);
970 static struct snd_soc_dai_ops twl6040_dai_ops
= {
971 .startup
= twl6040_startup
,
972 .hw_params
= twl6040_hw_params
,
973 .trigger
= twl6040_trigger
,
974 .set_sysclk
= twl6040_set_dai_sysclk
,
977 static struct snd_soc_dai_driver twl6040_dai
= {
978 .name
= "twl6040-hifi",
980 .stream_name
= "Playback",
983 .rates
= TWL6040_RATES
,
984 .formats
= TWL6040_FORMATS
,
987 .stream_name
= "Capture",
990 .rates
= TWL6040_RATES
,
991 .formats
= TWL6040_FORMATS
,
993 .ops
= &twl6040_dai_ops
,
997 static int twl6040_suspend(struct snd_soc_codec
*codec
, pm_message_t state
)
999 twl6040_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1004 static int twl6040_resume(struct snd_soc_codec
*codec
)
1006 twl6040_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1011 #define twl6040_suspend NULL
1012 #define twl6040_resume NULL
1015 static int twl6040_probe(struct snd_soc_codec
*codec
)
1017 struct twl4030_codec_data
*twl_codec
= codec
->dev
->platform_data
;
1018 struct twl6040_data
*priv
;
1019 int audpwron
, naudint
;
1022 priv
= kzalloc(sizeof(struct twl6040_data
), GFP_KERNEL
);
1025 snd_soc_codec_set_drvdata(codec
, priv
);
1028 audpwron
= twl_codec
->audpwron_gpio
;
1029 naudint
= twl_codec
->naudint_irq
;
1035 priv
->audpwron
= audpwron
;
1036 priv
->naudint
= naudint
;
1038 init_completion(&priv
->ready
);
1040 if (gpio_is_valid(audpwron
)) {
1041 ret
= gpio_request(audpwron
, "audpwron");
1045 ret
= gpio_direction_output(audpwron
, 0);
1049 priv
->codec_powered
= 0;
1053 /* audio interrupt */
1054 ret
= request_threaded_irq(naudint
, NULL
,
1055 twl6040_naudint_handler
,
1056 IRQF_TRIGGER_LOW
| IRQF_ONESHOT
,
1057 "twl6040_codec", codec
);
1061 if (gpio_is_valid(audpwron
)) {
1062 /* enable only codec ready interrupt */
1063 twl6040_write_reg_cache(codec
, TWL6040_REG_INTMR
,
1064 ~TWL6040_READYMSK
& TWL6040_ALLINT_MSK
);
1066 /* no interrupts at all */
1067 twl6040_write_reg_cache(codec
, TWL6040_REG_INTMR
,
1068 TWL6040_ALLINT_MSK
);
1072 /* init vio registers */
1073 twl6040_init_vio_regs(codec
);
1075 /* power on device */
1076 ret
= twl6040_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1080 snd_soc_add_controls(codec
, twl6040_snd_controls
,
1081 ARRAY_SIZE(twl6040_snd_controls
));
1082 twl6040_add_widgets(codec
);
1088 free_irq(naudint
, codec
);
1090 if (gpio_is_valid(audpwron
))
1091 gpio_free(audpwron
);
1097 static int twl6040_remove(struct snd_soc_codec
*codec
)
1099 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
1100 int audpwron
= priv
->audpwron
;
1101 int naudint
= priv
->naudint
;
1103 twl6040_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1105 if (gpio_is_valid(audpwron
))
1106 gpio_free(audpwron
);
1109 free_irq(naudint
, codec
);
1116 static struct snd_soc_codec_driver soc_codec_dev_twl6040
= {
1117 .probe
= twl6040_probe
,
1118 .remove
= twl6040_remove
,
1119 .suspend
= twl6040_suspend
,
1120 .resume
= twl6040_resume
,
1121 .read
= twl6040_read_reg_cache
,
1122 .write
= twl6040_write
,
1123 .set_bias_level
= twl6040_set_bias_level
,
1124 .reg_cache_size
= ARRAY_SIZE(twl6040_reg
),
1125 .reg_word_size
= sizeof(u8
),
1126 .reg_cache_default
= twl6040_reg
,
1129 static int __devinit
twl6040_codec_probe(struct platform_device
*pdev
)
1131 return snd_soc_register_codec(&pdev
->dev
,
1132 &soc_codec_dev_twl6040
, &twl6040_dai
, 1);
1135 static int __devexit
twl6040_codec_remove(struct platform_device
*pdev
)
1137 snd_soc_unregister_codec(&pdev
->dev
);
1141 static struct platform_driver twl6040_codec_driver
= {
1143 .name
= "twl6040-codec",
1144 .owner
= THIS_MODULE
,
1146 .probe
= twl6040_codec_probe
,
1147 .remove
= __devexit_p(twl6040_codec_remove
),
1150 static int __init
twl6040_codec_init(void)
1152 return platform_driver_register(&twl6040_codec_driver
);
1154 module_init(twl6040_codec_init
);
1156 static void __exit
twl6040_codec_exit(void)
1158 platform_driver_unregister(&twl6040_codec_driver
);
1160 module_exit(twl6040_codec_exit
);
1162 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1163 MODULE_AUTHOR("Misael Lopez Cruz");
1164 MODULE_LICENSE("GPL");