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ASoC: Add indirection for CODEC private data
[deliverable/linux.git] / sound / soc / codecs / twl6040.c
CommitLineData
8ecbabd9
MLC		 1/*
2 * ALSA SoC TWL6040 codec driver
3 *
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
5 *
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.
9 *
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.
14 *
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
18 * 02110-1301 USA
19 *
20 */
21
22#include <linux/module.h>
23#include <linux/moduleparam.h>
24#include <linux/init.h>
25#include <linux/delay.h>
26#include <linux/pm.h>
27#include <linux/i2c.h>
28#include <linux/gpio.h>
29#include <linux/platform_device.h>
68b40cc4 30#include <linux/slab.h>
8ecbabd9
MLC		 31#include <linux/i2c/twl.h>
32
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>
40
41#include "twl6040.h"
42
43#define TWL6040_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
44#define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
45
46/* codec private data */
47struct twl6040_data {
48 struct snd_soc_codec codec;
49 int audpwron;
50 int naudint;
51 int codec_powered;
52 int pll;
53 int non_lp;
54 unsigned int sysclk;
55 struct snd_pcm_hw_constraint_list *sysclk_constraints;
56 struct completion ready;
57};
58
59/*
60 * twl6040 register cache & default register settings
61 */
62static 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 */
110};
111
112/*
113 * twl6040 vio/gnd registers:
114 * registers under vio/gnd supply can be accessed
115 * before the power-up sequence, after NRESPWRON goes high
116 */
117static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
118 TWL6040_REG_ASICID,
119 TWL6040_REG_ASICREV,
120 TWL6040_REG_INTID,
121 TWL6040_REG_INTMR,
122 TWL6040_REG_NCPCTL,
123 TWL6040_REG_LDOCTL,
124 TWL6040_REG_AMICBCTL,
125 TWL6040_REG_DMICBCTL,
126 TWL6040_REG_HKCTL1,
127 TWL6040_REG_HKCTL2,
128 TWL6040_REG_GPOCTL,
129 TWL6040_REG_TRIM1,
130 TWL6040_REG_TRIM2,
131 TWL6040_REG_TRIM3,
132 TWL6040_REG_HSOTRIM,
133 TWL6040_REG_HFOTRIM,
134 TWL6040_REG_ACCCTL,
135 TWL6040_REG_STATUS,
136};
137
138/*
139 * twl6040 vdd/vss registers:
140 * registers under vdd/vss supplies can only be accessed
141 * after the power-up sequence
142 */
143static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
144 TWL6040_REG_HPPLLCTL,
145 TWL6040_REG_LPPLLCTL,
146 TWL6040_REG_LPPLLDIV,
147 TWL6040_REG_MICLCTL,
148 TWL6040_REG_MICRCTL,
149 TWL6040_REG_MICGAIN,
150 TWL6040_REG_LINEGAIN,
151 TWL6040_REG_HSLCTL,
152 TWL6040_REG_HSRCTL,
153 TWL6040_REG_HSGAIN,
154 TWL6040_REG_EARCTL,
155 TWL6040_REG_HFLCTL,
156 TWL6040_REG_HFLGAIN,
157 TWL6040_REG_HFRCTL,
158 TWL6040_REG_HFRGAIN,
159 TWL6040_REG_VIBCTLL,
160 TWL6040_REG_VIBDATL,
161 TWL6040_REG_VIBCTLR,
162 TWL6040_REG_VIBDATR,
163 TWL6040_REG_ALB,
164 TWL6040_REG_DLB,
165};
166
167/*
168 * read twl6040 register cache
169 */
170static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
171 unsigned int reg)
172{
173 u8 *cache = codec->reg_cache;
174
175 if (reg >= TWL6040_CACHEREGNUM)
176 return -EIO;
177
178 return cache[reg];
179}
180
181/*
182 * write twl6040 register cache
183 */
184static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
185 u8 reg, u8 value)
186{
187 u8 *cache = codec->reg_cache;
188
189 if (reg >= TWL6040_CACHEREGNUM)
190 return;
191 cache[reg] = value;
192}
193
194/*
195 * read from twl6040 hardware register
196 */
197static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
198 unsigned int reg)
199{
200 u8 value;
201
202 if (reg >= TWL6040_CACHEREGNUM)
203 return -EIO;
204
205 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
206 twl6040_write_reg_cache(codec, reg, value);
207
208 return value;
209}
210
211/*
212 * write to the twl6040 register space
213 */
214static int twl6040_write(struct snd_soc_codec *codec,
215 unsigned int reg, unsigned int value)
216{
217 if (reg >= TWL6040_CACHEREGNUM)
218 return -EIO;
219
220 twl6040_write_reg_cache(codec, reg, value);
221 return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
222}
223
224static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
225{
226 u8 *cache = codec->reg_cache;
227 int reg, i;
228
229 /* allow registers to be accessed by i2c */
230 twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]);
231
232 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
233 reg = twl6040_vio_reg[i];
234 /* skip read-only registers (ASICID, ASICREV, STATUS) */
235 switch (reg) {
236 case TWL6040_REG_ASICID:
237 case TWL6040_REG_ASICREV:
238 case TWL6040_REG_STATUS:
239 continue;
240 default:
241 break;
242 }
243 twl6040_write(codec, reg, cache[reg]);
244 }
245}
246
247static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
248{
249 u8 *cache = codec->reg_cache;
250 int reg, i;
251
252 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
253 reg = twl6040_vdd_reg[i];
254 twl6040_write(codec, reg, cache[reg]);
255 }
256}
257
258/* twl6040 codec manual power-up sequence */
259static void twl6040_power_up(struct snd_soc_codec *codec)
260{
261 u8 ncpctl, ldoctl, lppllctl, accctl;
262
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);
267
268 /* enable reference system */
269 ldoctl |= TWL6040_REFENA;
270 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
271 msleep(10);
272 /* enable internal oscillator */
273 ldoctl |= TWL6040_OSCENA;
274 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
275 udelay(10);
276 /* enable high-side ldo */
277 ldoctl |= TWL6040_HSLDOENA;
278 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
279 udelay(244);
280 /* enable negative charge pump */
281 ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN;
282 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
283 udelay(488);
284 /* enable low-side ldo */
285 ldoctl |= TWL6040_LSLDOENA;
286 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
287 udelay(244);
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);
294 mdelay(5);
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);
300}
301
302/* twl6040 codec manual power-down sequence */
303static void twl6040_power_down(struct snd_soc_codec *codec)
304{
305 u8 ncpctl, ldoctl, lppllctl, accctl;
306
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);
311
312 /* enable internal oscillator */
313 ldoctl |= TWL6040_OSCENA;
314 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
315 udelay(10);
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);
322 udelay(244);
323 /* disable negative charge pump */
324 ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN);
325 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
326 udelay(488);
327 /* disable high-side ldo */
328 ldoctl &= ~TWL6040_HSLDOENA;
329 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
330 udelay(244);
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);
337 msleep(10);
338}
339
340/* set headset dac and driver power mode */
341static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
342{
343 int hslctl, hsrctl;
344 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
345
346 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
347 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
348
349 if (high_perf) {
350 hslctl &= ~mask;
351 hsrctl &= ~mask;
352 } else {
353 hslctl |= mask;
354 hsrctl |= mask;
355 }
356
357 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
358 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
359
360 return 0;
361}
362
363static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
364 struct snd_kcontrol *kcontrol, int event)
365{
366 struct snd_soc_codec *codec = w->codec;
367 struct twl6040_data *priv = codec->private_data;
368
369 if (SND_SOC_DAPM_EVENT_ON(event))
370 priv->non_lp++;
371 else
372 priv->non_lp--;
373
374 return 0;
375}
376
377/* audio interrupt handler */
378static irqreturn_t twl6040_naudint_handler(int irq, void *data)
379{
380 struct snd_soc_codec *codec = data;
381 struct twl6040_data *priv = codec->private_data;
382 u8 intid;
383
384 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID);
385
386 switch (intid) {
387 case TWL6040_THINT:
388 dev_alert(codec->dev, "die temp over-limit detection\n");
389 break;
390 case TWL6040_PLUGINT:
391 case TWL6040_UNPLUGINT:
392 case TWL6040_HOOKINT:
393 break;
394 case TWL6040_HFINT:
395 dev_alert(codec->dev, "hf drivers over current detection\n");
396 break;
397 case TWL6040_VIBINT:
398 dev_alert(codec->dev, "vib drivers over current detection\n");
399 break;
400 case TWL6040_READYINT:
401 complete(&priv->ready);
402 break;
403 default:
404 dev_err(codec->dev, "unknown audio interrupt %d\n", intid);
405 break;
406 }
407
408 return IRQ_HANDLED;
409}
410
411/*
412 * MICATT volume control:
413 * from -6 to 0 dB in 6 dB steps
414 */
415static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
416
417/*
418 * MICGAIN volume control:
419 * from 6 to 30 dB in 6 dB steps
420 */
421static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
422
423/*
424 * HSGAIN volume control:
425 * from -30 to 0 dB in 2 dB steps
426 */
427static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
428
429/*
430 * HFGAIN volume control:
431 * from -52 to 6 dB in 2 dB steps
432 */
433static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
434
435/* Left analog microphone selection */
436static const char *twl6040_amicl_texts[] =
437 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
438
439/* Right analog microphone selection */
440static const char *twl6040_amicr_texts[] =
441 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
442
443static const struct soc_enum twl6040_enum[] = {
444 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 3, twl6040_amicl_texts),
445 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 3, twl6040_amicr_texts),
446};
447
448static const struct snd_kcontrol_new amicl_control =
449 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
450
451static const struct snd_kcontrol_new amicr_control =
452 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
453
454/* Headset DAC playback switches */
455static const struct snd_kcontrol_new hsdacl_switch_controls =
456 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL, 5, 1, 0);
457
458static const struct snd_kcontrol_new hsdacr_switch_controls =
459 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL, 5, 1, 0);
460
461/* Handsfree DAC playback switches */
462static const struct snd_kcontrol_new hfdacl_switch_controls =
463 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 2, 1, 0);
464
465static const struct snd_kcontrol_new hfdacr_switch_controls =
466 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 2, 1, 0);
467
468/* Headset driver switches */
469static const struct snd_kcontrol_new hsl_driver_switch_controls =
470 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSLCTL, 2, 1, 0);
471
472static const struct snd_kcontrol_new hsr_driver_switch_controls =
473 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HSRCTL, 2, 1, 0);
474
475/* Handsfree driver switches */
476static const struct snd_kcontrol_new hfl_driver_switch_controls =
477 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 4, 1, 0);
478
479static const struct snd_kcontrol_new hfr_driver_switch_controls =
480 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 4, 1, 0);
481
482static const struct snd_kcontrol_new twl6040_snd_controls[] = {
483 /* Capture gains */
484 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
485 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
486 SOC_DOUBLE_TLV("Capture Volume",
487 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
488
489 /* Playback gains */
490 SOC_DOUBLE_TLV("Headset Playback Volume",
491 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
492 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
493 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
494
495};
496
497static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
498 /* Inputs */
499 SND_SOC_DAPM_INPUT("MAINMIC"),
500 SND_SOC_DAPM_INPUT("HSMIC"),
501 SND_SOC_DAPM_INPUT("SUBMIC"),
502 SND_SOC_DAPM_INPUT("AFML"),
503 SND_SOC_DAPM_INPUT("AFMR"),
504
505 /* Outputs */
506 SND_SOC_DAPM_OUTPUT("HSOL"),
507 SND_SOC_DAPM_OUTPUT("HSOR"),
508 SND_SOC_DAPM_OUTPUT("HFL"),
509 SND_SOC_DAPM_OUTPUT("HFR"),
510
511 /* Analog input muxes for the capture amplifiers */
512 SND_SOC_DAPM_MUX("Analog Left Capture Route",
513 SND_SOC_NOPM, 0, 0, &amicl_control),
514 SND_SOC_DAPM_MUX("Analog Right Capture Route",
515 SND_SOC_NOPM, 0, 0, &amicr_control),
516
517 /* Analog capture PGAs */
518 SND_SOC_DAPM_PGA("MicAmpL",
519 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
520 SND_SOC_DAPM_PGA("MicAmpR",
521 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
522
523 /* ADCs */
524 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
525 TWL6040_REG_MICLCTL, 2, 0),
526 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
527 TWL6040_REG_MICRCTL, 2, 0),
528
529 /* Microphone bias */
530 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
531 TWL6040_REG_AMICBCTL, 0, 0),
532 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
533 TWL6040_REG_AMICBCTL, 4, 0),
534 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
535 TWL6040_REG_DMICBCTL, 0, 0),
536 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
537 TWL6040_REG_DMICBCTL, 4, 0),
538
539 /* DACs */
540 SND_SOC_DAPM_DAC("HSDAC Left", "Headset Playback",
541 TWL6040_REG_HSLCTL, 0, 0),
542 SND_SOC_DAPM_DAC("HSDAC Right", "Headset Playback",
543 TWL6040_REG_HSRCTL, 0, 0),
544 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
545 TWL6040_REG_HFLCTL, 0, 0,
546 twl6040_power_mode_event,
547 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
548 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
549 TWL6040_REG_HFRCTL, 0, 0,
550 twl6040_power_mode_event,
551 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
552
553 /* Analog playback switches */
554 SND_SOC_DAPM_SWITCH("HSDAC Left Playback",
555 SND_SOC_NOPM, 0, 0, &hsdacl_switch_controls),
556 SND_SOC_DAPM_SWITCH("HSDAC Right Playback",
557 SND_SOC_NOPM, 0, 0, &hsdacr_switch_controls),
558 SND_SOC_DAPM_SWITCH("HFDAC Left Playback",
559 SND_SOC_NOPM, 0, 0, &hfdacl_switch_controls),
560 SND_SOC_DAPM_SWITCH("HFDAC Right Playback",
561 SND_SOC_NOPM, 0, 0, &hfdacr_switch_controls),
562
563 SND_SOC_DAPM_SWITCH("Headset Left Driver",
564 SND_SOC_NOPM, 0, 0, &hsl_driver_switch_controls),
565 SND_SOC_DAPM_SWITCH("Headset Right Driver",
566 SND_SOC_NOPM, 0, 0, &hsr_driver_switch_controls),
567 SND_SOC_DAPM_SWITCH_E("Handsfree Left Driver",
568 SND_SOC_NOPM, 0, 0, &hfl_driver_switch_controls,
569 twl6040_power_mode_event,
570 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
571 SND_SOC_DAPM_SWITCH_E("Handsfree Right Driver",
572 SND_SOC_NOPM, 0, 0, &hfr_driver_switch_controls,
573 twl6040_power_mode_event,
574 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
575
576 /* Analog playback PGAs */
577 SND_SOC_DAPM_PGA("HFDAC Left PGA",
578 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
579 SND_SOC_DAPM_PGA("HFDAC Right PGA",
580 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
581
582};
583
584static const struct snd_soc_dapm_route intercon[] = {
585 /* Capture path */
586 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
587 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
588 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
589
590 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
591 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
592 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
593
594 {"MicAmpL", NULL, "Analog Left Capture Route"},
595 {"MicAmpR", NULL, "Analog Right Capture Route"},
596
597 {"ADC Left", NULL, "MicAmpL"},
598 {"ADC Right", NULL, "MicAmpR"},
599
600 /* Headset playback path */
601 {"HSDAC Left Playback", "Switch", "HSDAC Left"},
602 {"HSDAC Right Playback", "Switch", "HSDAC Right"},
603
604 {"Headset Left Driver", "Switch", "HSDAC Left Playback"},
605 {"Headset Right Driver", "Switch", "HSDAC Right Playback"},
606
607 {"HSOL", NULL, "Headset Left Driver"},
608 {"HSOR", NULL, "Headset Right Driver"},
609
610 /* Handsfree playback path */
611 {"HFDAC Left Playback", "Switch", "HFDAC Left"},
612 {"HFDAC Right Playback", "Switch", "HFDAC Right"},
613
614 {"HFDAC Left PGA", NULL, "HFDAC Left Playback"},
615 {"HFDAC Right PGA", NULL, "HFDAC Right Playback"},
616
617 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
618 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
619
620 {"HFL", NULL, "Handsfree Left Driver"},
621 {"HFR", NULL, "Handsfree Right Driver"},
622};
623
624static int twl6040_add_widgets(struct snd_soc_codec *codec)
625{
626 snd_soc_dapm_new_controls(codec, twl6040_dapm_widgets,
627 ARRAY_SIZE(twl6040_dapm_widgets));
628
629 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
630
631 snd_soc_dapm_new_widgets(codec);
632
633 return 0;
634}
635
636static int twl6040_power_up_completion(struct snd_soc_codec *codec,
637 int naudint)
638{
639 struct twl6040_data *priv = codec->private_data;
640 int time_left;
641 u8 intid;
642
643 time_left = wait_for_completion_timeout(&priv->ready,
644 msecs_to_jiffies(48));
645
646 if (!time_left) {
647 twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &intid,
648 TWL6040_REG_INTID);
649 if (!(intid & TWL6040_READYINT)) {
650 dev_err(codec->dev, "timeout waiting for READYINT\n");
651 return -ETIMEDOUT;
652 }
653 }
654
655 priv->codec_powered = 1;
656
657 return 0;
658}
659
660static int twl6040_set_bias_level(struct snd_soc_codec *codec,
661 enum snd_soc_bias_level level)
662{
663 struct twl6040_data *priv = codec->private_data;
664 int audpwron = priv->audpwron;
665 int naudint = priv->naudint;
666 int ret;
667
668 switch (level) {
669 case SND_SOC_BIAS_ON:
670 break;
671 case SND_SOC_BIAS_PREPARE:
672 break;
673 case SND_SOC_BIAS_STANDBY:
674 if (priv->codec_powered)
675 break;
676
677 if (gpio_is_valid(audpwron)) {
678 /* use AUDPWRON line */
679 gpio_set_value(audpwron, 1);
680
681 /* wait for power-up completion */
682 ret = twl6040_power_up_completion(codec, naudint);
683 if (ret)
684 return ret;
685
686 /* sync registers updated during power-up sequence */
687 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
688 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
689 twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
690 } else {
691 /* use manual power-up sequence */
692 twl6040_power_up(codec);
693 priv->codec_powered = 1;
694 }
695
696 /* initialize vdd/vss registers with reg_cache */
697 twl6040_init_vdd_regs(codec);
698 break;
699 case SND_SOC_BIAS_OFF:
700 if (!priv->codec_powered)
701 break;
702
703 if (gpio_is_valid(audpwron)) {
704 /* use AUDPWRON line */
705 gpio_set_value(audpwron, 0);
706
707 /* power-down sequence latency */
708 udelay(500);
709
710 /* sync registers updated during power-down sequence */
711 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
712 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
713 twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
714 0x00);
715 } else {
716 /* use manual power-down sequence */
717 twl6040_power_down(codec);
718 }
719
720 priv->codec_powered = 0;
721 break;
722 }
723
724 codec->bias_level = level;
725
726 return 0;
727}
728
729/* set of rates for each pll: low-power and high-performance */
730
731static unsigned int lp_rates[] = {
732 88200,
733 96000,
734};
735
736static struct snd_pcm_hw_constraint_list lp_constraints = {
737 .count = ARRAY_SIZE(lp_rates),
738 .list = lp_rates,
739};
740
741static unsigned int hp_rates[] = {
742 96000,
743};
744
745static struct snd_pcm_hw_constraint_list hp_constraints = {
746 .count = ARRAY_SIZE(hp_rates),
747 .list = hp_rates,
748};
749
750static int twl6040_startup(struct snd_pcm_substream *substream,
751 struct snd_soc_dai *dai)
752{
753 struct snd_soc_pcm_runtime *rtd = substream->private_data;
754 struct snd_soc_device *socdev = rtd->socdev;
755 struct snd_soc_codec *codec = socdev->card->codec;
756 struct twl6040_data *priv = codec->private_data;
757
758 if (!priv->sysclk) {
759 dev_err(codec->dev,
760 "no mclk configured, call set_sysclk() on init\n");
761 return -EINVAL;
762 }
763
764 /*
765 * capture is not supported at 17.64 MHz,
766 * it's reserved for headset low-power playback scenario
767 */
768 if ((priv->sysclk == 17640000) && substream->stream) {
769 dev_err(codec->dev,
770 "capture mode is not supported at %dHz\n",
771 priv->sysclk);
772 return -EINVAL;
773 }
774
775 snd_pcm_hw_constraint_list(substream->runtime, 0,
776 SNDRV_PCM_HW_PARAM_RATE,
777 priv->sysclk_constraints);
778
779 return 0;
780}
781
782static int twl6040_hw_params(struct snd_pcm_substream *substream,
783 struct snd_pcm_hw_params *params,
784 struct snd_soc_dai *dai)
785{
786 struct snd_soc_pcm_runtime *rtd = substream->private_data;
787 struct snd_soc_device *socdev = rtd->socdev;
788 struct snd_soc_codec *codec = socdev->card->codec;
789 struct twl6040_data *priv = codec->private_data;
790 u8 lppllctl;
791 int rate;
792
793 /* nothing to do for high-perf pll, it supports only 48 kHz */
794 if (priv->pll == TWL6040_HPPLL_ID)
795 return 0;
796
797 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
798
799 rate = params_rate(params);
800 switch (rate) {
801 case 88200:
802 lppllctl |= TWL6040_LPLLFIN;
803 priv->sysclk = 17640000;
804 break;
805 case 96000:
806 lppllctl &= ~TWL6040_LPLLFIN;
807 priv->sysclk = 19200000;
808 break;
809 default:
810 dev_err(codec->dev, "unsupported rate %d\n", rate);
811 return -EINVAL;
812 }
813
814 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
815
816 return 0;
817}
818
819static int twl6040_trigger(struct snd_pcm_substream *substream,
820 int cmd, struct snd_soc_dai *dai)
821{
822 struct snd_soc_pcm_runtime *rtd = substream->private_data;
823 struct snd_soc_device *socdev = rtd->socdev;
824 struct snd_soc_codec *codec = socdev->card->codec;
825 struct twl6040_data *priv = codec->private_data;
826
827 switch (cmd) {
828 case SNDRV_PCM_TRIGGER_START:
829 case SNDRV_PCM_TRIGGER_RESUME:
830 /*
831 * low-power playback mode is restricted
832 * for headset path only
833 */
834 if ((priv->sysclk == 17640000) && priv->non_lp) {
835 dev_err(codec->dev,
836 "some enabled paths aren't supported at %dHz\n",
837 priv->sysclk);
838 return -EPERM;
839 }
840 break;
841 default:
842 break;
843 }
844
845 return 0;
846}
847
848static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
849 int clk_id, unsigned int freq, int dir)
850{
851 struct snd_soc_codec *codec = codec_dai->codec;
852 struct twl6040_data *priv = codec->private_data;
853 u8 hppllctl, lppllctl;
854
855 hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL);
856 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
857
858 switch (clk_id) {
859 case TWL6040_SYSCLK_SEL_LPPLL:
860 switch (freq) {
861 case 32768:
862 /* headset dac and driver must be in low-power mode */
863 headset_power_mode(codec, 0);
864
865 /* clk32k input requires low-power pll */
866 lppllctl |= TWL6040_LPLLENA;
867 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
868 mdelay(5);
869 lppllctl &= ~TWL6040_HPLLSEL;
870 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
871 hppllctl &= ~TWL6040_HPLLENA;
872 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
873 break;
874 default:
875 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
876 return -EINVAL;
877 }
878
879 /* lppll divider */
880 switch (priv->sysclk) {
881 case 17640000:
882 lppllctl |= TWL6040_LPLLFIN;
883 break;
884 case 19200000:
885 lppllctl &= ~TWL6040_LPLLFIN;
886 break;
887 default:
888 /* sysclk not yet configured */
889 lppllctl &= ~TWL6040_LPLLFIN;
890 priv->sysclk = 19200000;
891 break;
892 }
893
894 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
895
896 priv->pll = TWL6040_LPPLL_ID;
897 priv->sysclk_constraints = &lp_constraints;
898 break;
899 case TWL6040_SYSCLK_SEL_HPPLL:
900 hppllctl &= ~TWL6040_MCLK_MSK;
901
902 switch (freq) {
903 case 12000000:
904 /* mclk input, pll enabled */
905 hppllctl |= TWL6040_MCLK_12000KHZ |
906 TWL6040_HPLLSQRBP |
907 TWL6040_HPLLENA;
908 break;
909 case 19200000:
910 /* mclk input, pll disabled */
911 hppllctl |= TWL6040_MCLK_19200KHZ |
912 TWL6040_HPLLSQRBP |
913 TWL6040_HPLLBP;
914 break;
915 case 26000000:
916 /* mclk input, pll enabled */
917 hppllctl |= TWL6040_MCLK_26000KHZ |
918 TWL6040_HPLLSQRBP |
919 TWL6040_HPLLENA;
920 break;
921 case 38400000:
922 /* clk slicer, pll disabled */
923 hppllctl |= TWL6040_MCLK_38400KHZ |
924 TWL6040_HPLLSQRENA |
925 TWL6040_HPLLBP;
926 break;
927 default:
928 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
929 return -EINVAL;
930 }
931
932 /* headset dac and driver must be in high-performance mode */
933 headset_power_mode(codec, 1);
934
935 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
936 udelay(500);
937 lppllctl |= TWL6040_HPLLSEL;
938 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
939 lppllctl &= ~TWL6040_LPLLENA;
940 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
941
942 /* high-performance pll can provide only 19.2 MHz */
943 priv->pll = TWL6040_HPPLL_ID;
944 priv->sysclk = 19200000;
945 priv->sysclk_constraints = &hp_constraints;
946 break;
947 default:
948 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
949 return -EINVAL;
950 }
951
952 return 0;
953}
954
955static struct snd_soc_dai_ops twl6040_dai_ops = {
956 .startup = twl6040_startup,
957 .hw_params = twl6040_hw_params,
958 .trigger = twl6040_trigger,
959 .set_sysclk = twl6040_set_dai_sysclk,
960};
961
962struct snd_soc_dai twl6040_dai = {
963 .name = "twl6040",
964 .playback = {
965 .stream_name = "Playback",
966 .channels_min = 1,
967 .channels_max = 4,
968 .rates = TWL6040_RATES,
969 .formats = TWL6040_FORMATS,
970 },
971 .capture = {
972 .stream_name = "Capture",
973 .channels_min = 1,
974 .channels_max = 2,
975 .rates = TWL6040_RATES,
976 .formats = TWL6040_FORMATS,
977 },
978 .ops = &twl6040_dai_ops,
979};
980EXPORT_SYMBOL_GPL(twl6040_dai);
981
982#ifdef CONFIG_PM
983static int twl6040_suspend(struct platform_device *pdev, pm_message_t state)
984{
985 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
986 struct snd_soc_codec *codec = socdev->card->codec;
987
988 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
989
990 return 0;
991}
992
993static int twl6040_resume(struct platform_device *pdev)
994{
995 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
996 struct snd_soc_codec *codec = socdev->card->codec;
997
998 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
999 twl6040_set_bias_level(codec, codec->suspend_bias_level);
1000
1001 return 0;
1002}
1003#else
1004#define twl6040_suspend NULL
1005#define twl6040_resume NULL
1006#endif
1007
1008static struct snd_soc_codec *twl6040_codec;
1009
1010static int twl6040_probe(struct platform_device *pdev)
1011{
1012 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1013 struct snd_soc_codec *codec;
1014 int ret = 0;
1015
1016 BUG_ON(!twl6040_codec);
1017
1018 codec = twl6040_codec;
1019 socdev->card->codec = codec;
1020
1021 /* register pcms */
1022 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1023 if (ret < 0) {
1024 dev_err(&pdev->dev, "failed to create pcms\n");
1025 return ret;
1026 }
1027
1028 snd_soc_add_controls(codec, twl6040_snd_controls,
1029 ARRAY_SIZE(twl6040_snd_controls));
1030 twl6040_add_widgets(codec);
1031
1032 if (ret < 0) {
1033 dev_err(&pdev->dev, "failed to register card\n");
1034 goto card_err;
1035 }
1036
1037 return ret;
1038
1039card_err:
1040 snd_soc_free_pcms(socdev);
1041 snd_soc_dapm_free(socdev);
1042 return ret;
1043}
1044
1045static int twl6040_remove(struct platform_device *pdev)
1046{
1047 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1048 struct snd_soc_codec *codec = socdev->card->codec;
1049
1050 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1051 snd_soc_free_pcms(socdev);
1052 snd_soc_dapm_free(socdev);
1053 kfree(codec);
1054
1055 return 0;
1056}
1057
1058struct snd_soc_codec_device soc_codec_dev_twl6040 = {
1059 .probe = twl6040_probe,
1060 .remove = twl6040_remove,
1061 .suspend = twl6040_suspend,
1062 .resume = twl6040_resume,
1063};
1064EXPORT_SYMBOL_GPL(soc_codec_dev_twl6040);
1065
1066static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1067{
1068 struct twl4030_codec_data *twl_codec = pdev->dev.platform_data;
1069 struct snd_soc_codec *codec;
1070 struct twl6040_data *priv;
1071 int audpwron, naudint;
1072 int ret = 0;
1073
1074 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1075 if (priv == NULL)
1076 return -ENOMEM;
1077
1078 if (twl_codec) {
1079 audpwron = twl_codec->audpwron_gpio;
1080 naudint = twl_codec->naudint_irq;
1081 } else {
1082 audpwron = -EINVAL;
1083 naudint = 0;
1084 }
1085
1086 priv->audpwron = audpwron;
1087 priv->naudint = naudint;
1088
1089 codec = &priv->codec;
1090 codec->dev = &pdev->dev;
1091 twl6040_dai.dev = &pdev->dev;
1092
1093 codec->name = "twl6040";
1094 codec->owner = THIS_MODULE;
1095 codec->read = twl6040_read_reg_cache;
1096 codec->write = twl6040_write;
1097 codec->set_bias_level = twl6040_set_bias_level;
1098 codec->private_data = priv;
1099 codec->dai = &twl6040_dai;
1100 codec->num_dai = 1;
1101 codec->reg_cache_size = ARRAY_SIZE(twl6040_reg);
1102 codec->reg_cache = kmemdup(twl6040_reg, sizeof(twl6040_reg),
1103 GFP_KERNEL);
1104 if (codec->reg_cache == NULL) {
1105 ret = -ENOMEM;
1106 goto cache_err;
1107 }
1108
1109 mutex_init(&codec->mutex);
1110 INIT_LIST_HEAD(&codec->dapm_widgets);
1111 INIT_LIST_HEAD(&codec->dapm_paths);
1112 init_completion(&priv->ready);
1113
1114 if (gpio_is_valid(audpwron)) {
1115 ret = gpio_request(audpwron, "audpwron");
1116 if (ret)
1117 goto gpio1_err;
1118
1119 ret = gpio_direction_output(audpwron, 0);
1120 if (ret)
1121 goto gpio2_err;
1122
1123 priv->codec_powered = 0;
1124 }
1125
1126 if (naudint) {
1127 /* audio interrupt */
1128 ret = request_threaded_irq(naudint, NULL,
1129 twl6040_naudint_handler,
1130 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1131 "twl6040_codec", codec);
1132 if (ret)
1133 goto gpio2_err;
1134 } else {
1135 if (gpio_is_valid(audpwron)) {
1136 /* enable only codec ready interrupt */
1137 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1138 ~TWL6040_READYMSK & TWL6040_ALLINT_MSK);
1139 } else {
1140 /* no interrupts at all */
1141 twl6040_write_reg_cache(codec, TWL6040_REG_INTMR,
1142 TWL6040_ALLINT_MSK);
1143 }
1144 }
1145
1146 /* init vio registers */
1147 twl6040_init_vio_regs(codec);
1148
1149 /* power on device */
1150 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1151 if (ret)
1152 goto irq_err;
1153
1154 ret = snd_soc_register_codec(codec);
1155 if (ret)
1156 goto reg_err;
1157
1158 twl6040_codec = codec;
1159
1160 ret = snd_soc_register_dai(&twl6040_dai);
1161 if (ret)
1162 goto dai_err;
1163
1164 return 0;
1165
1166dai_err:
1167 snd_soc_unregister_codec(codec);
1168 twl6040_codec = NULL;
1169reg_err:
1170 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1171irq_err:
1172 if (naudint)
1173 free_irq(naudint, codec);
1174gpio2_err:
1175 if (gpio_is_valid(audpwron))
1176 gpio_free(audpwron);
1177gpio1_err:
1178 kfree(codec->reg_cache);
1179cache_err:
1180 kfree(priv);
1181 return ret;
1182}
1183
1184static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1185{
1186 struct twl6040_data *priv = twl6040_codec->private_data;
1187 int audpwron = priv->audpwron;
1188 int naudint = priv->naudint;
1189
1190 if (gpio_is_valid(audpwron))
1191 gpio_free(audpwron);
1192
1193 if (naudint)
1194 free_irq(naudint, twl6040_codec);
1195
1196 snd_soc_unregister_dai(&twl6040_dai);
1197 snd_soc_unregister_codec(twl6040_codec);
1198
1199 kfree(twl6040_codec);
1200 twl6040_codec = NULL;
1201
1202 return 0;
1203}
1204
1205static struct platform_driver twl6040_codec_driver = {
1206 .driver = {
1207 .name = "twl6040_codec",
1208 .owner = THIS_MODULE,
1209 },
1210 .probe = twl6040_codec_probe,
1211 .remove = __devexit_p(twl6040_codec_remove),
1212};
1213
1214static int __init twl6040_codec_init(void)
1215{
1216 return platform_driver_register(&twl6040_codec_driver);
1217}
1218module_init(twl6040_codec_init);
1219
1220static void __exit twl6040_codec_exit(void)
1221{
1222 platform_driver_unregister(&twl6040_codec_driver);
1223}
1224module_exit(twl6040_codec_exit);
1225
1226MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1227MODULE_AUTHOR("Misael Lopez Cruz");
1228MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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