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
);
446 dev_alert(codec
->dev
, "die temp over-limit detection\n");
448 case TWL6040_PLUGINT
:
449 case TWL6040_UNPLUGINT
:
450 queue_delayed_work(priv
->workqueue
, &priv
->delayed_work
,
451 msecs_to_jiffies(200));
453 case TWL6040_HOOKINT
:
456 dev_alert(codec
->dev
, "hf drivers over current detection\n");
459 dev_alert(codec
->dev
, "vib drivers over current detection\n");
461 case TWL6040_READYINT
:
462 complete(&priv
->ready
);
465 dev_err(codec
->dev
, "unknown audio interrupt %d\n", intid
);
473 * MICATT volume control:
474 * from -6 to 0 dB in 6 dB steps
476 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv
, -600, 600, 0);
479 * MICGAIN volume control:
480 * from 6 to 30 dB in 6 dB steps
482 static DECLARE_TLV_DB_SCALE(mic_amp_tlv
, 600, 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 struct snd_kcontrol_new amicl_control
=
516 SOC_DAPM_ENUM("Route", twl6040_enum
[0]);
518 static const struct snd_kcontrol_new amicr_control
=
519 SOC_DAPM_ENUM("Route", twl6040_enum
[1]);
521 /* Headset DAC playback switches */
522 static const struct snd_kcontrol_new hsdacl_switch_controls
=
523 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL
, 5, 1, 0);
525 static const struct snd_kcontrol_new hsdacr_switch_controls
=
526 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL
, 5, 1, 0);
528 /* Handsfree DAC playback switches */
529 static const struct snd_kcontrol_new hfdacl_switch_controls
=
530 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL
, 2, 1, 0);
532 static const struct snd_kcontrol_new hfdacr_switch_controls
=
533 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL
, 2, 1, 0);
535 static const struct snd_kcontrol_new ep_driver_switch_controls
=
536 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL
, 0, 1, 0);
538 static const struct snd_kcontrol_new twl6040_snd_controls
[] = {
540 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
541 TWL6040_REG_MICGAIN
, 6, 7, 1, 1, mic_preamp_tlv
),
542 SOC_DOUBLE_TLV("Capture Volume",
543 TWL6040_REG_MICGAIN
, 0, 3, 4, 0, mic_amp_tlv
),
546 SOC_DOUBLE_TLV("Headset Playback Volume",
547 TWL6040_REG_HSGAIN
, 0, 4, 0xF, 1, hs_tlv
),
548 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
549 TWL6040_REG_HFLGAIN
, TWL6040_REG_HFRGAIN
, 0, 0x1D, 1, hf_tlv
),
550 SOC_SINGLE_TLV("Earphone Playback Volume",
551 TWL6040_REG_EARCTL
, 1, 0xF, 1, ep_tlv
),
554 static const struct snd_soc_dapm_widget twl6040_dapm_widgets
[] = {
556 SND_SOC_DAPM_INPUT("MAINMIC"),
557 SND_SOC_DAPM_INPUT("HSMIC"),
558 SND_SOC_DAPM_INPUT("SUBMIC"),
559 SND_SOC_DAPM_INPUT("AFML"),
560 SND_SOC_DAPM_INPUT("AFMR"),
563 SND_SOC_DAPM_OUTPUT("HSOL"),
564 SND_SOC_DAPM_OUTPUT("HSOR"),
565 SND_SOC_DAPM_OUTPUT("HFL"),
566 SND_SOC_DAPM_OUTPUT("HFR"),
567 SND_SOC_DAPM_OUTPUT("EP"),
569 /* Analog input muxes for the capture amplifiers */
570 SND_SOC_DAPM_MUX("Analog Left Capture Route",
571 SND_SOC_NOPM
, 0, 0, &amicl_control
),
572 SND_SOC_DAPM_MUX("Analog Right Capture Route",
573 SND_SOC_NOPM
, 0, 0, &amicr_control
),
575 /* Analog capture PGAs */
576 SND_SOC_DAPM_PGA("MicAmpL",
577 TWL6040_REG_MICLCTL
, 0, 0, NULL
, 0),
578 SND_SOC_DAPM_PGA("MicAmpR",
579 TWL6040_REG_MICRCTL
, 0, 0, NULL
, 0),
582 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
583 TWL6040_REG_MICLCTL
, 2, 0),
584 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
585 TWL6040_REG_MICRCTL
, 2, 0),
587 /* Microphone bias */
588 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
589 TWL6040_REG_AMICBCTL
, 0, 0),
590 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
591 TWL6040_REG_AMICBCTL
, 4, 0),
592 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
593 TWL6040_REG_DMICBCTL
, 0, 0),
594 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
595 TWL6040_REG_DMICBCTL
, 4, 0),
598 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
599 TWL6040_REG_HSLCTL
, 0, 0,
600 twl6040_hs_dac_event
,
601 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
602 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
603 TWL6040_REG_HSRCTL
, 0, 0,
604 twl6040_hs_dac_event
,
605 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
606 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
607 TWL6040_REG_HFLCTL
, 0, 0,
608 twl6040_power_mode_event
,
609 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
610 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
611 TWL6040_REG_HFRCTL
, 0, 0,
612 twl6040_power_mode_event
,
613 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
615 /* Analog playback switches */
616 SND_SOC_DAPM_SWITCH("HSDAC Left Playback",
617 SND_SOC_NOPM
, 0, 0, &hsdacl_switch_controls
),
618 SND_SOC_DAPM_SWITCH("HSDAC Right Playback",
619 SND_SOC_NOPM
, 0, 0, &hsdacr_switch_controls
),
620 SND_SOC_DAPM_SWITCH("HFDAC Left Playback",
621 SND_SOC_NOPM
, 0, 0, &hfdacl_switch_controls
),
622 SND_SOC_DAPM_SWITCH("HFDAC Right Playback",
623 SND_SOC_NOPM
, 0, 0, &hfdacr_switch_controls
),
625 /* Analog playback drivers */
626 SND_SOC_DAPM_PGA_E("Handsfree Left Driver",
627 TWL6040_REG_HFLCTL
, 4, 0, NULL
, 0,
628 twl6040_power_mode_event
,
629 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
630 SND_SOC_DAPM_PGA_E("Handsfree Right Driver",
631 TWL6040_REG_HFRCTL
, 4, 0, NULL
, 0,
632 twl6040_power_mode_event
,
633 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
634 SND_SOC_DAPM_PGA("Headset Left Driver",
635 TWL6040_REG_HSLCTL
, 2, 0, NULL
, 0),
636 SND_SOC_DAPM_PGA("Headset Right Driver",
637 TWL6040_REG_HSRCTL
, 2, 0, NULL
, 0),
638 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
639 SND_SOC_NOPM
, 0, 0, &ep_driver_switch_controls
,
640 twl6040_power_mode_event
,
641 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_POST_PMD
),
643 /* Analog playback PGAs */
644 SND_SOC_DAPM_PGA("HFDAC Left PGA",
645 TWL6040_REG_HFLCTL
, 1, 0, NULL
, 0),
646 SND_SOC_DAPM_PGA("HFDAC Right PGA",
647 TWL6040_REG_HFRCTL
, 1, 0, NULL
, 0),
651 static const struct snd_soc_dapm_route intercon
[] = {
653 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
654 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
655 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
657 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
658 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
659 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
661 {"MicAmpL", NULL
, "Analog Left Capture Route"},
662 {"MicAmpR", NULL
, "Analog Right Capture Route"},
664 {"ADC Left", NULL
, "MicAmpL"},
665 {"ADC Right", NULL
, "MicAmpR"},
667 /* Headset playback path */
668 {"HSDAC Left Playback", "Switch", "HSDAC Left"},
669 {"HSDAC Right Playback", "Switch", "HSDAC Right"},
671 {"Headset Left Driver", NULL
, "HSDAC Left Playback"},
672 {"Headset Right Driver", NULL
, "HSDAC Right Playback"},
674 {"HSOL", NULL
, "Headset Left Driver"},
675 {"HSOR", NULL
, "Headset Right Driver"},
677 /* Earphone playback path */
678 {"Earphone Driver", "Switch", "HSDAC Left"},
679 {"EP", NULL
, "Earphone Driver"},
681 /* Handsfree playback path */
682 {"HFDAC Left Playback", "Switch", "HFDAC Left"},
683 {"HFDAC Right Playback", "Switch", "HFDAC Right"},
685 {"HFDAC Left PGA", NULL
, "HFDAC Left Playback"},
686 {"HFDAC Right PGA", NULL
, "HFDAC Right Playback"},
688 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
689 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
691 {"HFL", NULL
, "Handsfree Left Driver"},
692 {"HFR", NULL
, "Handsfree Right Driver"},
695 static int twl6040_add_widgets(struct snd_soc_codec
*codec
)
697 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
699 snd_soc_dapm_new_controls(dapm
, twl6040_dapm_widgets
,
700 ARRAY_SIZE(twl6040_dapm_widgets
));
701 snd_soc_dapm_add_routes(dapm
, intercon
, ARRAY_SIZE(intercon
));
702 snd_soc_dapm_new_widgets(dapm
);
707 static int twl6040_power_up_completion(struct snd_soc_codec
*codec
,
710 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
714 time_left
= wait_for_completion_timeout(&priv
->ready
,
715 msecs_to_jiffies(48));
718 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE
, &intid
,
720 if (!(intid
& TWL6040_READYINT
)) {
721 dev_err(codec
->dev
, "timeout waiting for READYINT\n");
726 priv
->codec_powered
= 1;
731 static int twl6040_set_bias_level(struct snd_soc_codec
*codec
,
732 enum snd_soc_bias_level level
)
734 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
735 int audpwron
= priv
->audpwron
;
736 int naudint
= priv
->naudint
;
740 case SND_SOC_BIAS_ON
:
742 case SND_SOC_BIAS_PREPARE
:
744 case SND_SOC_BIAS_STANDBY
:
745 if (priv
->codec_powered
)
748 if (gpio_is_valid(audpwron
)) {
749 /* use AUDPWRON line */
750 gpio_set_value(audpwron
, 1);
752 /* wait for power-up completion */
753 ret
= twl6040_power_up_completion(codec
, naudint
);
757 /* sync registers updated during power-up sequence */
758 twl6040_read_reg_volatile(codec
, TWL6040_REG_NCPCTL
);
759 twl6040_read_reg_volatile(codec
, TWL6040_REG_LDOCTL
);
760 twl6040_read_reg_volatile(codec
, TWL6040_REG_LPPLLCTL
);
762 /* use manual power-up sequence */
763 twl6040_power_up(codec
);
764 priv
->codec_powered
= 1;
767 /* initialize vdd/vss registers with reg_cache */
768 twl6040_init_vdd_regs(codec
);
770 case SND_SOC_BIAS_OFF
:
771 if (!priv
->codec_powered
)
774 if (gpio_is_valid(audpwron
)) {
775 /* use AUDPWRON line */
776 gpio_set_value(audpwron
, 0);
778 /* power-down sequence latency */
781 /* sync registers updated during power-down sequence */
782 twl6040_read_reg_volatile(codec
, TWL6040_REG_NCPCTL
);
783 twl6040_read_reg_volatile(codec
, TWL6040_REG_LDOCTL
);
784 twl6040_write_reg_cache(codec
, TWL6040_REG_LPPLLCTL
,
787 /* use manual power-down sequence */
788 twl6040_power_down(codec
);
791 priv
->codec_powered
= 0;
795 codec
->dapm
.bias_level
= level
;
800 /* set of rates for each pll: low-power and high-performance */
802 static unsigned int lp_rates
[] = {
807 static struct snd_pcm_hw_constraint_list lp_constraints
= {
808 .count
= ARRAY_SIZE(lp_rates
),
812 static unsigned int hp_rates
[] = {
816 static struct snd_pcm_hw_constraint_list hp_constraints
= {
817 .count
= ARRAY_SIZE(hp_rates
),
821 static int twl6040_startup(struct snd_pcm_substream
*substream
,
822 struct snd_soc_dai
*dai
)
824 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
825 struct snd_soc_codec
*codec
= rtd
->codec
;
826 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
830 "no mclk configured, call set_sysclk() on init\n");
835 * capture is not supported at 17.64 MHz,
836 * it's reserved for headset low-power playback scenario
838 if ((priv
->sysclk
== 17640000) && substream
->stream
) {
840 "capture mode is not supported at %dHz\n",
845 snd_pcm_hw_constraint_list(substream
->runtime
, 0,
846 SNDRV_PCM_HW_PARAM_RATE
,
847 priv
->sysclk_constraints
);
852 static int twl6040_hw_params(struct snd_pcm_substream
*substream
,
853 struct snd_pcm_hw_params
*params
,
854 struct snd_soc_dai
*dai
)
856 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
857 struct snd_soc_codec
*codec
= rtd
->codec
;
858 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
862 /* nothing to do for high-perf pll, it supports only 48 kHz */
863 if (priv
->pll
== TWL6040_HPPLL_ID
)
866 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
868 rate
= params_rate(params
);
871 lppllctl
|= TWL6040_LPLLFIN
;
872 priv
->sysclk
= 17640000;
875 lppllctl
&= ~TWL6040_LPLLFIN
;
876 priv
->sysclk
= 19200000;
879 dev_err(codec
->dev
, "unsupported rate %d\n", rate
);
883 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
888 static int twl6040_trigger(struct snd_pcm_substream
*substream
,
889 int cmd
, struct snd_soc_dai
*dai
)
891 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
892 struct snd_soc_codec
*codec
= rtd
->codec
;
893 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
896 case SNDRV_PCM_TRIGGER_START
:
897 case SNDRV_PCM_TRIGGER_RESUME
:
899 * low-power playback mode is restricted
900 * for headset path only
902 if ((priv
->sysclk
== 17640000) && priv
->non_lp
) {
904 "some enabled paths aren't supported at %dHz\n",
916 static int twl6040_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
917 int clk_id
, unsigned int freq
, int dir
)
919 struct snd_soc_codec
*codec
= codec_dai
->codec
;
920 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
921 u8 hppllctl
, lppllctl
;
923 hppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_HPPLLCTL
);
924 lppllctl
= twl6040_read_reg_cache(codec
, TWL6040_REG_LPPLLCTL
);
927 case TWL6040_SYSCLK_SEL_LPPLL
:
930 /* headset dac and driver must be in low-power mode */
931 headset_power_mode(codec
, 0);
933 /* clk32k input requires low-power pll */
934 lppllctl
|= TWL6040_LPLLENA
;
935 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
937 lppllctl
&= ~TWL6040_HPLLSEL
;
938 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
939 hppllctl
&= ~TWL6040_HPLLENA
;
940 twl6040_write(codec
, TWL6040_REG_HPPLLCTL
, hppllctl
);
943 dev_err(codec
->dev
, "unknown mclk freq %d\n", freq
);
948 switch (priv
->sysclk
) {
950 lppllctl
|= TWL6040_LPLLFIN
;
953 lppllctl
&= ~TWL6040_LPLLFIN
;
956 /* sysclk not yet configured */
957 lppllctl
&= ~TWL6040_LPLLFIN
;
958 priv
->sysclk
= 19200000;
962 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
964 priv
->pll
= TWL6040_LPPLL_ID
;
965 priv
->sysclk_constraints
= &lp_constraints
;
967 case TWL6040_SYSCLK_SEL_HPPLL
:
968 hppllctl
&= ~TWL6040_MCLK_MSK
;
972 /* mclk input, pll enabled */
973 hppllctl
|= TWL6040_MCLK_12000KHZ
|
978 /* mclk input, pll disabled */
979 hppllctl
|= TWL6040_MCLK_19200KHZ
|
984 /* mclk input, pll enabled */
985 hppllctl
|= TWL6040_MCLK_26000KHZ
|
990 /* clk slicer, pll disabled */
991 hppllctl
|= TWL6040_MCLK_38400KHZ
|
996 dev_err(codec
->dev
, "unknown mclk freq %d\n", freq
);
1000 /* headset dac and driver must be in high-performance mode */
1001 headset_power_mode(codec
, 1);
1003 twl6040_write(codec
, TWL6040_REG_HPPLLCTL
, hppllctl
);
1005 lppllctl
|= TWL6040_HPLLSEL
;
1006 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
1007 lppllctl
&= ~TWL6040_LPLLENA
;
1008 twl6040_write(codec
, TWL6040_REG_LPPLLCTL
, lppllctl
);
1010 /* high-performance pll can provide only 19.2 MHz */
1011 priv
->pll
= TWL6040_HPPLL_ID
;
1012 priv
->sysclk
= 19200000;
1013 priv
->sysclk_constraints
= &hp_constraints
;
1016 dev_err(codec
->dev
, "unknown clk_id %d\n", clk_id
);
1023 static struct snd_soc_dai_ops twl6040_dai_ops
= {
1024 .startup
= twl6040_startup
,
1025 .hw_params
= twl6040_hw_params
,
1026 .trigger
= twl6040_trigger
,
1027 .set_sysclk
= twl6040_set_dai_sysclk
,
1030 static struct snd_soc_dai_driver twl6040_dai
= {
1031 .name
= "twl6040-hifi",
1033 .stream_name
= "Playback",
1036 .rates
= TWL6040_RATES
,
1037 .formats
= TWL6040_FORMATS
,
1040 .stream_name
= "Capture",
1043 .rates
= TWL6040_RATES
,
1044 .formats
= TWL6040_FORMATS
,
1046 .ops
= &twl6040_dai_ops
,
1050 static int twl6040_suspend(struct snd_soc_codec
*codec
, pm_message_t state
)
1052 twl6040_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1057 static int twl6040_resume(struct snd_soc_codec
*codec
)
1059 twl6040_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1064 #define twl6040_suspend NULL
1065 #define twl6040_resume NULL
1068 static int twl6040_probe(struct snd_soc_codec
*codec
)
1070 struct twl4030_codec_data
*twl_codec
= codec
->dev
->platform_data
;
1071 struct twl6040_data
*priv
;
1072 int audpwron
, naudint
;
1075 priv
= kzalloc(sizeof(struct twl6040_data
), GFP_KERNEL
);
1078 snd_soc_codec_set_drvdata(codec
, priv
);
1080 priv
->codec
= codec
;
1083 audpwron
= twl_codec
->audpwron_gpio
;
1084 naudint
= twl_codec
->naudint_irq
;
1090 priv
->audpwron
= audpwron
;
1091 priv
->naudint
= naudint
;
1092 priv
->workqueue
= create_singlethread_workqueue("twl6040-codec");
1094 if (!priv
->workqueue
)
1097 INIT_DELAYED_WORK(&priv
->delayed_work
, twl6040_accessory_work
);
1099 mutex_init(&priv
->mutex
);
1101 init_completion(&priv
->ready
);
1103 if (gpio_is_valid(audpwron
)) {
1104 ret
= gpio_request(audpwron
, "audpwron");
1108 ret
= gpio_direction_output(audpwron
, 0);
1112 priv
->codec_powered
= 0;
1116 /* audio interrupt */
1117 ret
= request_threaded_irq(naudint
, NULL
,
1118 twl6040_naudint_handler
,
1119 IRQF_TRIGGER_LOW
| IRQF_ONESHOT
,
1120 "twl6040_codec", codec
);
1124 if (gpio_is_valid(audpwron
)) {
1125 /* enable only codec ready interrupt */
1126 twl6040_write_reg_cache(codec
, TWL6040_REG_INTMR
,
1127 ~TWL6040_READYMSK
& TWL6040_ALLINT_MSK
);
1129 /* no interrupts at all */
1130 twl6040_write_reg_cache(codec
, TWL6040_REG_INTMR
,
1131 TWL6040_ALLINT_MSK
);
1135 /* init vio registers */
1136 twl6040_init_vio_regs(codec
);
1138 /* power on device */
1139 ret
= twl6040_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1143 snd_soc_add_controls(codec
, twl6040_snd_controls
,
1144 ARRAY_SIZE(twl6040_snd_controls
));
1145 twl6040_add_widgets(codec
);
1151 free_irq(naudint
, codec
);
1153 if (gpio_is_valid(audpwron
))
1154 gpio_free(audpwron
);
1156 destroy_workqueue(priv
->workqueue
);
1162 static int twl6040_remove(struct snd_soc_codec
*codec
)
1164 struct twl6040_data
*priv
= snd_soc_codec_get_drvdata(codec
);
1165 int audpwron
= priv
->audpwron
;
1166 int naudint
= priv
->naudint
;
1168 twl6040_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1170 if (gpio_is_valid(audpwron
))
1171 gpio_free(audpwron
);
1174 free_irq(naudint
, codec
);
1176 destroy_workqueue(priv
->workqueue
);
1182 static struct snd_soc_codec_driver soc_codec_dev_twl6040
= {
1183 .probe
= twl6040_probe
,
1184 .remove
= twl6040_remove
,
1185 .suspend
= twl6040_suspend
,
1186 .resume
= twl6040_resume
,
1187 .read
= twl6040_read_reg_cache
,
1188 .write
= twl6040_write
,
1189 .set_bias_level
= twl6040_set_bias_level
,
1190 .reg_cache_size
= ARRAY_SIZE(twl6040_reg
),
1191 .reg_word_size
= sizeof(u8
),
1192 .reg_cache_default
= twl6040_reg
,
1195 static int __devinit
twl6040_codec_probe(struct platform_device
*pdev
)
1197 return snd_soc_register_codec(&pdev
->dev
,
1198 &soc_codec_dev_twl6040
, &twl6040_dai
, 1);
1201 static int __devexit
twl6040_codec_remove(struct platform_device
*pdev
)
1203 snd_soc_unregister_codec(&pdev
->dev
);
1207 static struct platform_driver twl6040_codec_driver
= {
1209 .name
= "twl6040-codec",
1210 .owner
= THIS_MODULE
,
1212 .probe
= twl6040_codec_probe
,
1213 .remove
= __devexit_p(twl6040_codec_remove
),
1216 static int __init
twl6040_codec_init(void)
1218 return platform_driver_register(&twl6040_codec_driver
);
1220 module_init(twl6040_codec_init
);
1222 static void __exit
twl6040_codec_exit(void)
1224 platform_driver_unregister(&twl6040_codec_driver
);
1226 module_exit(twl6040_codec_exit
);
1228 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1229 MODULE_AUTHOR("Misael Lopez Cruz");
1230 MODULE_LICENSE("GPL");