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staging:iio:ad9834: allocate chip state with iio_dev and use iio_priv to access.
[linux-2.6/next.git] / sound / soc / codecs / twl6040.c
blob4c336636d4f5bbc55bd3b2b979fef6ad4936ac4c
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>
30 #include <linux/slab.h>
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/initval.h>
38 #include <sound/tlv.h>
39
40 #include "twl6040.h"
41
42 #define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
43 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
44
45 #define TWL6040_OUTHS_0dB 0x00
46 #define TWL6040_OUTHS_M30dB 0x0F
47 #define TWL6040_OUTHF_0dB 0x03
48 #define TWL6040_OUTHF_M52dB 0x1D
49
50 #define TWL6040_RAMP_NONE 0
51 #define TWL6040_RAMP_UP 1
52 #define TWL6040_RAMP_DOWN 2
53
54 #define TWL6040_HSL_VOL_MASK 0x0F
55 #define TWL6040_HSL_VOL_SHIFT 0
56 #define TWL6040_HSR_VOL_MASK 0xF0
57 #define TWL6040_HSR_VOL_SHIFT 4
58 #define TWL6040_HF_VOL_MASK 0x1F
59 #define TWL6040_HF_VOL_SHIFT 0
60
61 struct twl6040_output {
62 u16 active;
63 u16 left_vol;
64 u16 right_vol;
65 u16 left_step;
66 u16 right_step;
67 unsigned int step_delay;
68 u16 ramp;
69 u16 mute;
70 struct completion ramp_done;
71 };
72
73 struct twl6040_jack_data {
74 struct snd_soc_jack *jack;
75 int report;
76 };
77
78 /* codec private data */
79 struct twl6040_data {
80 int audpwron;
81 int naudint;
82 int codec_powered;
83 int pll;
84 int non_lp;
85 unsigned int sysclk;
86 struct snd_pcm_hw_constraint_list *sysclk_constraints;
87 struct completion ready;
88 struct twl6040_jack_data hs_jack;
89 struct snd_soc_codec *codec;
90 struct workqueue_struct *workqueue;
91 struct delayed_work delayed_work;
92 struct mutex mutex;
93 struct twl6040_output headset;
94 struct twl6040_output handsfree;
95 struct workqueue_struct *hf_workqueue;
96 struct workqueue_struct *hs_workqueue;
97 struct delayed_work hs_delayed_work;
98 struct delayed_work hf_delayed_work;
99 };
100
101 /*
102 * twl6040 register cache & default register settings
103 */
104 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
105 0x00, /* not used 0x00 */
106 0x4B, /* TWL6040_ASICID (ro) 0x01 */
107 0x00, /* TWL6040_ASICREV (ro) 0x02 */
108 0x00, /* TWL6040_INTID 0x03 */
109 0x00, /* TWL6040_INTMR 0x04 */
110 0x00, /* TWL6040_NCPCTRL 0x05 */
111 0x00, /* TWL6040_LDOCTL 0x06 */
112 0x60, /* TWL6040_HPPLLCTL 0x07 */
113 0x00, /* TWL6040_LPPLLCTL 0x08 */
114 0x4A, /* TWL6040_LPPLLDIV 0x09 */
115 0x00, /* TWL6040_AMICBCTL 0x0A */
116 0x00, /* TWL6040_DMICBCTL 0x0B */
117 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
118 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
119 0x00, /* TWL6040_MICGAIN 0x0E */
120 0x1B, /* TWL6040_LINEGAIN 0x0F */
121 0x00, /* TWL6040_HSLCTL 0x10 */
122 0x00, /* TWL6040_HSRCTL 0x11 */
123 0x00, /* TWL6040_HSGAIN 0x12 */
124 0x00, /* TWL6040_EARCTL 0x13 */
125 0x00, /* TWL6040_HFLCTL 0x14 */
126 0x00, /* TWL6040_HFLGAIN 0x15 */
127 0x00, /* TWL6040_HFRCTL 0x16 */
128 0x00, /* TWL6040_HFRGAIN 0x17 */
129 0x00, /* TWL6040_VIBCTLL 0x18 */
130 0x00, /* TWL6040_VIBDATL 0x19 */
131 0x00, /* TWL6040_VIBCTLR 0x1A */
132 0x00, /* TWL6040_VIBDATR 0x1B */
133 0x00, /* TWL6040_HKCTL1 0x1C */
134 0x00, /* TWL6040_HKCTL2 0x1D */
135 0x00, /* TWL6040_GPOCTL 0x1E */
136 0x00, /* TWL6040_ALB 0x1F */
137 0x00, /* TWL6040_DLB 0x20 */
138 0x00, /* not used 0x21 */
139 0x00, /* not used 0x22 */
140 0x00, /* not used 0x23 */
141 0x00, /* not used 0x24 */
142 0x00, /* not used 0x25 */
143 0x00, /* not used 0x26 */
144 0x00, /* not used 0x27 */
145 0x00, /* TWL6040_TRIM1 0x28 */
146 0x00, /* TWL6040_TRIM2 0x29 */
147 0x00, /* TWL6040_TRIM3 0x2A */
148 0x00, /* TWL6040_HSOTRIM 0x2B */
149 0x00, /* TWL6040_HFOTRIM 0x2C */
150 0x09, /* TWL6040_ACCCTL 0x2D */
151 0x00, /* TWL6040_STATUS (ro) 0x2E */
152 };
153
154 /*
155 * twl6040 vio/gnd registers:
156 * registers under vio/gnd supply can be accessed
157 * before the power-up sequence, after NRESPWRON goes high
158 */
159 static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
160 TWL6040_REG_ASICID,
161 TWL6040_REG_ASICREV,
162 TWL6040_REG_INTID,
163 TWL6040_REG_INTMR,
164 TWL6040_REG_NCPCTL,
165 TWL6040_REG_LDOCTL,
166 TWL6040_REG_AMICBCTL,
167 TWL6040_REG_DMICBCTL,
168 TWL6040_REG_HKCTL1,
169 TWL6040_REG_HKCTL2,
170 TWL6040_REG_GPOCTL,
171 TWL6040_REG_TRIM1,
172 TWL6040_REG_TRIM2,
173 TWL6040_REG_TRIM3,
174 TWL6040_REG_HSOTRIM,
175 TWL6040_REG_HFOTRIM,
176 TWL6040_REG_ACCCTL,
177 TWL6040_REG_STATUS,
178 };
179
180 /*
181 * twl6040 vdd/vss registers:
182 * registers under vdd/vss supplies can only be accessed
183 * after the power-up sequence
184 */
185 static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
186 TWL6040_REG_HPPLLCTL,
187 TWL6040_REG_LPPLLCTL,
188 TWL6040_REG_LPPLLDIV,
189 TWL6040_REG_MICLCTL,
190 TWL6040_REG_MICRCTL,
191 TWL6040_REG_MICGAIN,
192 TWL6040_REG_LINEGAIN,
193 TWL6040_REG_HSLCTL,
194 TWL6040_REG_HSRCTL,
195 TWL6040_REG_HSGAIN,
196 TWL6040_REG_EARCTL,
197 TWL6040_REG_HFLCTL,
198 TWL6040_REG_HFLGAIN,
199 TWL6040_REG_HFRCTL,
200 TWL6040_REG_HFRGAIN,
201 TWL6040_REG_VIBCTLL,
202 TWL6040_REG_VIBDATL,
203 TWL6040_REG_VIBCTLR,
204 TWL6040_REG_VIBDATR,
205 TWL6040_REG_ALB,
206 TWL6040_REG_DLB,
207 };
208
209 /*
210 * read twl6040 register cache
211 */
212 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
213 unsigned int reg)
214 {
215 u8 *cache = codec->reg_cache;
216
217 if (reg >= TWL6040_CACHEREGNUM)
218 return -EIO;
219
220 return cache[reg];
221 }
222
223 /*
224 * write twl6040 register cache
225 */
226 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
227 u8 reg, u8 value)
228 {
229 u8 *cache = codec->reg_cache;
230
231 if (reg >= TWL6040_CACHEREGNUM)
232 return;
233 cache[reg] = value;
234 }
235
236 /*
237 * read from twl6040 hardware register
238 */
239 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
240 unsigned int reg)
241 {
242 u8 value;
243
244 if (reg >= TWL6040_CACHEREGNUM)
245 return -EIO;
246
247 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &value, reg);
248 twl6040_write_reg_cache(codec, reg, value);
249
250 return value;
251 }
252
253 /*
254 * write to the twl6040 register space
255 */
256 static int twl6040_write(struct snd_soc_codec *codec,
257 unsigned int reg, unsigned int value)
258 {
259 if (reg >= TWL6040_CACHEREGNUM)
260 return -EIO;
261
262 twl6040_write_reg_cache(codec, reg, value);
263 return twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, value, reg);
264 }
265
266 static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
267 {
268 u8 *cache = codec->reg_cache;
269 int reg, i;
270
271 /* allow registers to be accessed by i2c */
272 twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]);
273
274 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
275 reg = twl6040_vio_reg[i];
276 /* skip read-only registers (ASICID, ASICREV, STATUS) */
277 switch (reg) {
278 case TWL6040_REG_ASICID:
279 case TWL6040_REG_ASICREV:
280 case TWL6040_REG_STATUS:
281 continue;
282 default:
283 break;
284 }
285 twl6040_write(codec, reg, cache[reg]);
286 }
287 }
288
289 static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
290 {
291 u8 *cache = codec->reg_cache;
292 int reg, i;
293
294 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
295 reg = twl6040_vdd_reg[i];
296 twl6040_write(codec, reg, cache[reg]);
297 }
298 }
299
300 /*
301 * Ramp HS PGA volume to minimise pops at stream startup and shutdown.
302 */
303 static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
304 unsigned int left_step, unsigned int right_step)
305 {
306
307 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
308 struct twl6040_output *headset = &priv->headset;
309 int left_complete = 0, right_complete = 0;
310 u8 reg, val;
311
312 /* left channel */
313 left_step = (left_step > 0xF) ? 0xF : left_step;
314 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
315 val = (~reg & TWL6040_HSL_VOL_MASK);
316
317 if (headset->ramp == TWL6040_RAMP_UP) {
318 /* ramp step up */
319 if (val < headset->left_vol) {
320 val += left_step;
321 reg &= ~TWL6040_HSL_VOL_MASK;
322 twl6040_write(codec, TWL6040_REG_HSGAIN,
323 (reg | (~val & TWL6040_HSL_VOL_MASK)));
324 } else {
325 left_complete = 1;
326 }
327 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
328 /* ramp step down */
329 if (val > 0x0) {
330 val -= left_step;
331 reg &= ~TWL6040_HSL_VOL_MASK;
332 twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
333 (~val & TWL6040_HSL_VOL_MASK));
334 } else {
335 left_complete = 1;
336 }
337 }
338
339 /* right channel */
340 right_step = (right_step > 0xF) ? 0xF : right_step;
341 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
342 val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
343
344 if (headset->ramp == TWL6040_RAMP_UP) {
345 /* ramp step up */
346 if (val < headset->right_vol) {
347 val += right_step;
348 reg &= ~TWL6040_HSR_VOL_MASK;
349 twl6040_write(codec, TWL6040_REG_HSGAIN,
350 (reg | (~val << TWL6040_HSR_VOL_SHIFT)));
351 } else {
352 right_complete = 1;
353 }
354 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
355 /* ramp step down */
356 if (val > 0x0) {
357 val -= right_step;
358 reg &= ~TWL6040_HSR_VOL_MASK;
359 twl6040_write(codec, TWL6040_REG_HSGAIN,
360 reg | (~val << TWL6040_HSR_VOL_SHIFT));
361 } else {
362 right_complete = 1;
363 }
364 }
365
366 return left_complete & right_complete;
367 }
368
369 /*
370 * Ramp HF PGA volume to minimise pops at stream startup and shutdown.
371 */
372 static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
373 unsigned int left_step, unsigned int right_step)
374 {
375 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
376 struct twl6040_output *handsfree = &priv->handsfree;
377 int left_complete = 0, right_complete = 0;
378 u16 reg, val;
379
380 /* left channel */
381 left_step = (left_step > 0x1D) ? 0x1D : left_step;
382 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
383 reg = 0x1D - reg;
384 val = (reg & TWL6040_HF_VOL_MASK);
385 if (handsfree->ramp == TWL6040_RAMP_UP) {
386 /* ramp step up */
387 if (val < handsfree->left_vol) {
388 val += left_step;
389 reg &= ~TWL6040_HF_VOL_MASK;
390 twl6040_write(codec, TWL6040_REG_HFLGAIN,
391 reg | (0x1D - val));
392 } else {
393 left_complete = 1;
394 }
395 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
396 /* ramp step down */
397 if (val > 0) {
398 val -= left_step;
399 reg &= ~TWL6040_HF_VOL_MASK;
400 twl6040_write(codec, TWL6040_REG_HFLGAIN,
401 reg | (0x1D - val));
402 } else {
403 left_complete = 1;
404 }
405 }
406
407 /* right channel */
408 right_step = (right_step > 0x1D) ? 0x1D : right_step;
409 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
410 reg = 0x1D - reg;
411 val = (reg & TWL6040_HF_VOL_MASK);
412 if (handsfree->ramp == TWL6040_RAMP_UP) {
413 /* ramp step up */
414 if (val < handsfree->right_vol) {
415 val += right_step;
416 reg &= ~TWL6040_HF_VOL_MASK;
417 twl6040_write(codec, TWL6040_REG_HFRGAIN,
418 reg | (0x1D - val));
419 } else {
420 right_complete = 1;
421 }
422 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
423 /* ramp step down */
424 if (val > 0) {
425 val -= right_step;
426 reg &= ~TWL6040_HF_VOL_MASK;
427 twl6040_write(codec, TWL6040_REG_HFRGAIN,
428 reg | (0x1D - val));
429 }
430 }
431
432 return left_complete & right_complete;
433 }
434
435 /*
436 * This work ramps both output PGAs at stream start/stop time to
437 * minimise pop associated with DAPM power switching.
438 */
439 static void twl6040_pga_hs_work(struct work_struct *work)
440 {
441 struct twl6040_data *priv =
442 container_of(work, struct twl6040_data, hs_delayed_work.work);
443 struct snd_soc_codec *codec = priv->codec;
444 struct twl6040_output *headset = &priv->headset;
445 unsigned int delay = headset->step_delay;
446 int i, headset_complete;
447
448 /* do we need to ramp at all ? */
449 if (headset->ramp == TWL6040_RAMP_NONE)
450 return;
451
452 /* HS PGA volumes have 4 bits of resolution to ramp */
453 for (i = 0; i <= 16; i++) {
454 headset_complete = 1;
455 if (headset->ramp != TWL6040_RAMP_NONE)
456 headset_complete = twl6040_hs_ramp_step(codec,
457 headset->left_step,
458 headset->right_step);
459
460 /* ramp finished ? */
461 if (headset_complete)
462 break;
463
464 /*
465 * TODO: tune: delay is longer over 0dB
466 * as increases are larger.
467 */
468 if (i >= 8)
469 schedule_timeout_interruptible(msecs_to_jiffies(delay +
470 (delay >> 1)));
471 else
472 schedule_timeout_interruptible(msecs_to_jiffies(delay));
473 }
474
475 if (headset->ramp == TWL6040_RAMP_DOWN) {
476 headset->active = 0;
477 complete(&headset->ramp_done);
478 } else {
479 headset->active = 1;
480 }
481 headset->ramp = TWL6040_RAMP_NONE;
482 }
483
484 static void twl6040_pga_hf_work(struct work_struct *work)
485 {
486 struct twl6040_data *priv =
487 container_of(work, struct twl6040_data, hf_delayed_work.work);
488 struct snd_soc_codec *codec = priv->codec;
489 struct twl6040_output *handsfree = &priv->handsfree;
490 unsigned int delay = handsfree->step_delay;
491 int i, handsfree_complete;
492
493 /* do we need to ramp at all ? */
494 if (handsfree->ramp == TWL6040_RAMP_NONE)
495 return;
496
497 /* HF PGA volumes have 5 bits of resolution to ramp */
498 for (i = 0; i <= 32; i++) {
499 handsfree_complete = 1;
500 if (handsfree->ramp != TWL6040_RAMP_NONE)
501 handsfree_complete = twl6040_hf_ramp_step(codec,
502 handsfree->left_step,
503 handsfree->right_step);
504
505 /* ramp finished ? */
506 if (handsfree_complete)
507 break;
508
509 /*
510 * TODO: tune: delay is longer over 0dB
511 * as increases are larger.
512 */
513 if (i >= 16)
514 schedule_timeout_interruptible(msecs_to_jiffies(delay +
515 (delay >> 1)));
516 else
517 schedule_timeout_interruptible(msecs_to_jiffies(delay));
518 }
519
520
521 if (handsfree->ramp == TWL6040_RAMP_DOWN) {
522 handsfree->active = 0;
523 complete(&handsfree->ramp_done);
524 } else
525 handsfree->active = 1;
526 handsfree->ramp = TWL6040_RAMP_NONE;
527 }
528
529 static int pga_event(struct snd_soc_dapm_widget *w,
530 struct snd_kcontrol *kcontrol, int event)
531 {
532 struct snd_soc_codec *codec = w->codec;
533 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
534 struct twl6040_output *out;
535 struct delayed_work *work;
536 struct workqueue_struct *queue;
537
538 switch (w->shift) {
539 case 2:
540 case 3:
541 out = &priv->headset;
542 work = &priv->hs_delayed_work;
543 queue = priv->hs_workqueue;
544 out->step_delay = 5; /* 5 ms between volume ramp steps */
545 break;
546 case 4:
547 out = &priv->handsfree;
548 work = &priv->hf_delayed_work;
549 queue = priv->hf_workqueue;
550 out->step_delay = 5; /* 5 ms between volume ramp steps */
551 if (SND_SOC_DAPM_EVENT_ON(event))
552 priv->non_lp++;
553 else
554 priv->non_lp--;
555 break;
556 default:
557 return -1;
558 }
559
560 switch (event) {
561 case SND_SOC_DAPM_POST_PMU:
562 if (out->active)
563 break;
564
565 /* don't use volume ramp for power-up */
566 out->left_step = out->left_vol;
567 out->right_step = out->right_vol;
568
569 if (!delayed_work_pending(work)) {
570 out->ramp = TWL6040_RAMP_UP;
571 queue_delayed_work(queue, work,
572 msecs_to_jiffies(1));
573 }
574 break;
575
576 case SND_SOC_DAPM_PRE_PMD:
577 if (!out->active)
578 break;
579
580 if (!delayed_work_pending(work)) {
581 /* use volume ramp for power-down */
582 out->left_step = 1;
583 out->right_step = 1;
584 out->ramp = TWL6040_RAMP_DOWN;
585 INIT_COMPLETION(out->ramp_done);
586
587 queue_delayed_work(queue, work,
588 msecs_to_jiffies(1));
589
590 wait_for_completion_timeout(&out->ramp_done,
591 msecs_to_jiffies(2000));
592 }
593 break;
594 }
595
596 return 0;
597 }
598
599 /* twl6040 codec manual power-up sequence */
600 static void twl6040_power_up(struct snd_soc_codec *codec)
601 {
602 u8 ncpctl, ldoctl, lppllctl, accctl;
603
604 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
605 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
606 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
607 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
608
609 /* enable reference system */
610 ldoctl |= TWL6040_REFENA;
611 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
612 msleep(10);
613 /* enable internal oscillator */
614 ldoctl |= TWL6040_OSCENA;
615 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
616 udelay(10);
617 /* enable high-side ldo */
618 ldoctl |= TWL6040_HSLDOENA;
619 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
620 udelay(244);
621 /* enable negative charge pump */
622 ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN;
623 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
624 udelay(488);
625 /* enable low-side ldo */
626 ldoctl |= TWL6040_LSLDOENA;
627 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
628 udelay(244);
629 /* enable low-power pll */
630 lppllctl |= TWL6040_LPLLENA;
631 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
632 /* reset state machine */
633 accctl |= TWL6040_RESETSPLIT;
634 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
635 mdelay(5);
636 accctl &= ~TWL6040_RESETSPLIT;
637 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
638 /* disable internal oscillator */
639 ldoctl &= ~TWL6040_OSCENA;
640 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
641 }
642
643 /* twl6040 codec manual power-down sequence */
644 static void twl6040_power_down(struct snd_soc_codec *codec)
645 {
646 u8 ncpctl, ldoctl, lppllctl, accctl;
647
648 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
649 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
650 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
651 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
652
653 /* enable internal oscillator */
654 ldoctl |= TWL6040_OSCENA;
655 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
656 udelay(10);
657 /* disable low-power pll */
658 lppllctl &= ~TWL6040_LPLLENA;
659 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
660 /* disable low-side ldo */
661 ldoctl &= ~TWL6040_LSLDOENA;
662 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
663 udelay(244);
664 /* disable negative charge pump */
665 ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN);
666 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
667 udelay(488);
668 /* disable high-side ldo */
669 ldoctl &= ~TWL6040_HSLDOENA;
670 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
671 udelay(244);
672 /* disable internal oscillator */
673 ldoctl &= ~TWL6040_OSCENA;
674 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
675 /* disable reference system */
676 ldoctl &= ~TWL6040_REFENA;
677 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
678 msleep(10);
679 }
680
681 /* set headset dac and driver power mode */
682 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
683 {
684 int hslctl, hsrctl;
685 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
686
687 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
688 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
689
690 if (high_perf) {
691 hslctl &= ~mask;
692 hsrctl &= ~mask;
693 } else {
694 hslctl |= mask;
695 hsrctl |= mask;
696 }
697
698 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
699 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
700
701 return 0;
702 }
703
704 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
705 struct snd_kcontrol *kcontrol, int event)
706 {
707 msleep(1);
708 return 0;
709 }
710
711 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
712 struct snd_kcontrol *kcontrol, int event)
713 {
714 struct snd_soc_codec *codec = w->codec;
715 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
716
717 if (SND_SOC_DAPM_EVENT_ON(event))
718 priv->non_lp++;
719 else
720 priv->non_lp--;
721
722 msleep(1);
723
724 return 0;
725 }
726
727 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
728 struct snd_soc_jack *jack, int report)
729 {
730 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
731 int status;
732
733 mutex_lock(&priv->mutex);
734
735 /* Sync status */
736 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
737 if (status & TWL6040_PLUGCOMP)
738 snd_soc_jack_report(jack, report, report);
739 else
740 snd_soc_jack_report(jack, 0, report);
741
742 mutex_unlock(&priv->mutex);
743 }
744
745 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
746 struct snd_soc_jack *jack, int report)
747 {
748 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
749 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
750
751 hs_jack->jack = jack;
752 hs_jack->report = report;
753
754 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
755 }
756 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
757
758 static void twl6040_accessory_work(struct work_struct *work)
759 {
760 struct twl6040_data *priv = container_of(work,
761 struct twl6040_data, delayed_work.work);
762 struct snd_soc_codec *codec = priv->codec;
763 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
764
765 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
766 }
767
768 /* audio interrupt handler */
769 static irqreturn_t twl6040_naudint_handler(int irq, void *data)
770 {
771 struct snd_soc_codec *codec = data;
772 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
773 u8 intid;
774
775 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID);
776
777 if (intid & TWL6040_THINT)
778 dev_alert(codec->dev, "die temp over-limit detection\n");
779
780 if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
781 queue_delayed_work(priv->workqueue, &priv->delayed_work,
782 msecs_to_jiffies(200));
783
784 if (intid & TWL6040_HOOKINT)
785 dev_info(codec->dev, "hook detection\n");
786
787 if (intid & TWL6040_HFINT)
788 dev_alert(codec->dev, "hf drivers over current detection\n");
789
790 if (intid & TWL6040_VIBINT)
791 dev_alert(codec->dev, "vib drivers over current detection\n");
792
793 if (intid & TWL6040_READYINT)
794 complete(&priv->ready);
795
796 return IRQ_HANDLED;
797 }
798
799 static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
800 struct snd_ctl_elem_value *ucontrol)
801 {
802 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
803 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
804 struct twl6040_output *out = NULL;
805 struct soc_mixer_control *mc =
806 (struct soc_mixer_control *)kcontrol->private_value;
807 int ret;
808 unsigned int reg = mc->reg;
809
810 /* For HS and HF we shadow the values and only actually write
811 * them out when active in order to ensure the amplifier comes on
812 * as quietly as possible. */
813 switch (reg) {
814 case TWL6040_REG_HSGAIN:
815 out = &twl6040_priv->headset;
816 break;
817 default:
818 break;
819 }
820
821 if (out) {
822 out->left_vol = ucontrol->value.integer.value[0];
823 out->right_vol = ucontrol->value.integer.value[1];
824 if (!out->active)
825 return 1;
826 }
827
828 ret = snd_soc_put_volsw(kcontrol, ucontrol);
829 if (ret < 0)
830 return ret;
831
832 return 1;
833 }
834
835 static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
836 struct snd_ctl_elem_value *ucontrol)
837 {
838 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
839 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
840 struct twl6040_output *out = &twl6040_priv->headset;
841 struct soc_mixer_control *mc =
842 (struct soc_mixer_control *)kcontrol->private_value;
843 unsigned int reg = mc->reg;
844
845 switch (reg) {
846 case TWL6040_REG_HSGAIN:
847 out = &twl6040_priv->headset;
848 ucontrol->value.integer.value[0] = out->left_vol;
849 ucontrol->value.integer.value[1] = out->right_vol;
850 return 0;
851
852 default:
853 break;
854 }
855
856 return snd_soc_get_volsw(kcontrol, ucontrol);
857 }
858
859 static int twl6040_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
860 struct snd_ctl_elem_value *ucontrol)
861 {
862 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
863 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
864 struct twl6040_output *out = NULL;
865 struct soc_mixer_control *mc =
866 (struct soc_mixer_control *)kcontrol->private_value;
867 int ret;
868 unsigned int reg = mc->reg;
869
870 /* For HS and HF we shadow the values and only actually write
871 * them out when active in order to ensure the amplifier comes on
872 * as quietly as possible. */
873 switch (reg) {
874 case TWL6040_REG_HFLGAIN:
875 case TWL6040_REG_HFRGAIN:
876 out = &twl6040_priv->handsfree;
877 break;
878 default:
879 break;
880 }
881
882 if (out) {
883 out->left_vol = ucontrol->value.integer.value[0];
884 out->right_vol = ucontrol->value.integer.value[1];
885 if (!out->active)
886 return 1;
887 }
888
889 ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
890 if (ret < 0)
891 return ret;
892
893 return 1;
894 }
895
896 static int twl6040_get_volsw_2r(struct snd_kcontrol *kcontrol,
897 struct snd_ctl_elem_value *ucontrol)
898 {
899 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
900 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
901 struct twl6040_output *out = &twl6040_priv->handsfree;
902 struct soc_mixer_control *mc =
903 (struct soc_mixer_control *)kcontrol->private_value;
904 unsigned int reg = mc->reg;
905
906 /* If these are cached registers use the cache */
907 switch (reg) {
908 case TWL6040_REG_HFLGAIN:
909 case TWL6040_REG_HFRGAIN:
910 out = &twl6040_priv->handsfree;
911 ucontrol->value.integer.value[0] = out->left_vol;
912 ucontrol->value.integer.value[1] = out->right_vol;
913 return 0;
914
915 default:
916 break;
917 }
918
919 return snd_soc_get_volsw_2r(kcontrol, ucontrol);
920 }
921
922 /* double control with volume update */
923 #define SOC_TWL6040_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax,\
924 xinvert, tlv_array)\
925 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
926 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
927 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
928 .tlv.p = (tlv_array), \
929 .info = snd_soc_info_volsw, .get = twl6040_get_volsw, \
930 .put = twl6040_put_volsw, \
931 .private_value = (unsigned long)&(struct soc_mixer_control) \
932 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
933 .max = xmax, .platform_max = xmax, .invert = xinvert} }
934
935 /* double control with volume update */
936 #define SOC_TWL6040_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax,\
937 xinvert, tlv_array)\
938 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
939 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
940 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
941 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
942 .tlv.p = (tlv_array), \
943 .info = snd_soc_info_volsw_2r, \
944 .get = twl6040_get_volsw_2r, .put = twl6040_put_volsw_2r_vu, \
945 .private_value = (unsigned long)&(struct soc_mixer_control) \
946 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
947 .rshift = xshift, .max = xmax, .invert = xinvert}, }
948
949 /*
950 * MICATT volume control:
951 * from -6 to 0 dB in 6 dB steps
952 */
953 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
954
955 /*
956 * MICGAIN volume control:
957 * from -6 to 30 dB in 6 dB steps
958 */
959 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -600, 600, 0);
960
961 /*
962 * AFMGAIN volume control:
963 * from -18 to 24 dB in 6 dB steps
964 */
965 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
966
967 /*
968 * HSGAIN volume control:
969 * from -30 to 0 dB in 2 dB steps
970 */
971 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
972
973 /*
974 * HFGAIN volume control:
975 * from -52 to 6 dB in 2 dB steps
976 */
977 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
978
979 /*
980 * EPGAIN volume control:
981 * from -24 to 6 dB in 2 dB steps
982 */
983 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
984
985 /* Left analog microphone selection */
986 static const char *twl6040_amicl_texts[] =
987 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
988
989 /* Right analog microphone selection */
990 static const char *twl6040_amicr_texts[] =
991 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
992
993 static const struct soc_enum twl6040_enum[] = {
994 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
995 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
996 };
997
998 static const char *twl6040_hs_texts[] = {
999 "Off", "HS DAC", "Line-In amp"
1000 };
1001
1002 static const struct soc_enum twl6040_hs_enum[] = {
1003 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
1004 twl6040_hs_texts),
1005 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
1006 twl6040_hs_texts),
1007 };
1008
1009 static const char *twl6040_hf_texts[] = {
1010 "Off", "HF DAC", "Line-In amp"
1011 };
1012
1013 static const struct soc_enum twl6040_hf_enum[] = {
1014 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
1015 twl6040_hf_texts),
1016 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
1017 twl6040_hf_texts),
1018 };
1019
1020 static const struct snd_kcontrol_new amicl_control =
1021 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
1022
1023 static const struct snd_kcontrol_new amicr_control =
1024 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
1025
1026 /* Headset DAC playback switches */
1027 static const struct snd_kcontrol_new hsl_mux_controls =
1028 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
1029
1030 static const struct snd_kcontrol_new hsr_mux_controls =
1031 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
1032
1033 /* Handsfree DAC playback switches */
1034 static const struct snd_kcontrol_new hfl_mux_controls =
1035 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
1036
1037 static const struct snd_kcontrol_new hfr_mux_controls =
1038 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
1039
1040 static const struct snd_kcontrol_new ep_driver_switch_controls =
1041 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
1042
1043 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
1044 /* Capture gains */
1045 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
1046 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
1047 SOC_DOUBLE_TLV("Capture Volume",
1048 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
1049
1050 /* AFM gains */
1051 SOC_DOUBLE_TLV("Aux FM Volume",
1052 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
1053
1054 /* Playback gains */
1055 SOC_TWL6040_DOUBLE_TLV("Headset Playback Volume",
1056 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
1057 SOC_TWL6040_DOUBLE_R_TLV("Handsfree Playback Volume",
1058 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
1059 SOC_SINGLE_TLV("Earphone Playback Volume",
1060 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
1061 };
1062
1063 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
1064 /* Inputs */
1065 SND_SOC_DAPM_INPUT("MAINMIC"),
1066 SND_SOC_DAPM_INPUT("HSMIC"),
1067 SND_SOC_DAPM_INPUT("SUBMIC"),
1068 SND_SOC_DAPM_INPUT("AFML"),
1069 SND_SOC_DAPM_INPUT("AFMR"),
1070
1071 /* Outputs */
1072 SND_SOC_DAPM_OUTPUT("HSOL"),
1073 SND_SOC_DAPM_OUTPUT("HSOR"),
1074 SND_SOC_DAPM_OUTPUT("HFL"),
1075 SND_SOC_DAPM_OUTPUT("HFR"),
1076 SND_SOC_DAPM_OUTPUT("EP"),
1077
1078 /* Analog input muxes for the capture amplifiers */
1079 SND_SOC_DAPM_MUX("Analog Left Capture Route",
1080 SND_SOC_NOPM, 0, 0, &amicl_control),
1081 SND_SOC_DAPM_MUX("Analog Right Capture Route",
1082 SND_SOC_NOPM, 0, 0, &amicr_control),
1083
1084 /* Analog capture PGAs */
1085 SND_SOC_DAPM_PGA("MicAmpL",
1086 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
1087 SND_SOC_DAPM_PGA("MicAmpR",
1088 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
1089
1090 /* Auxiliary FM PGAs */
1091 SND_SOC_DAPM_PGA("AFMAmpL",
1092 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
1093 SND_SOC_DAPM_PGA("AFMAmpR",
1094 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
1095
1096 /* ADCs */
1097 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
1098 TWL6040_REG_MICLCTL, 2, 0),
1099 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
1100 TWL6040_REG_MICRCTL, 2, 0),
1101
1102 /* Microphone bias */
1103 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
1104 TWL6040_REG_AMICBCTL, 0, 0),
1105 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
1106 TWL6040_REG_AMICBCTL, 4, 0),
1107 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
1108 TWL6040_REG_DMICBCTL, 0, 0),
1109 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
1110 TWL6040_REG_DMICBCTL, 4, 0),
1111
1112 /* DACs */
1113 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
1114 TWL6040_REG_HSLCTL, 0, 0,
1115 twl6040_hs_dac_event,
1116 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1117 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
1118 TWL6040_REG_HSRCTL, 0, 0,
1119 twl6040_hs_dac_event,
1120 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1121 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
1122 TWL6040_REG_HFLCTL, 0, 0,
1123 twl6040_power_mode_event,
1124 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1125 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
1126 TWL6040_REG_HFRCTL, 0, 0,
1127 twl6040_power_mode_event,
1128 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1129
1130 SND_SOC_DAPM_MUX("HF Left Playback",
1131 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
1132 SND_SOC_DAPM_MUX("HF Right Playback",
1133 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
1134 /* Analog playback Muxes */
1135 SND_SOC_DAPM_MUX("HS Left Playback",
1136 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
1137 SND_SOC_DAPM_MUX("HS Right Playback",
1138 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
1139
1140 /* Analog playback drivers */
1141 SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
1142 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
1143 pga_event,
1144 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1145 SND_SOC_DAPM_OUT_DRV_E("Handsfree Right Driver",
1146 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
1147 pga_event,
1148 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1149 SND_SOC_DAPM_OUT_DRV_E("Headset Left Driver",
1150 TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
1151 pga_event,
1152 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1153 SND_SOC_DAPM_OUT_DRV_E("Headset Right Driver",
1154 TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
1155 pga_event,
1156 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1157 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
1158 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
1159 twl6040_power_mode_event,
1160 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1161
1162 /* Analog playback PGAs */
1163 SND_SOC_DAPM_PGA("HFDAC Left PGA",
1164 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
1165 SND_SOC_DAPM_PGA("HFDAC Right PGA",
1166 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
1167
1168 };
1169
1170 static const struct snd_soc_dapm_route intercon[] = {
1171 /* Capture path */
1172 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
1173 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
1174 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
1175
1176 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
1177 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
1178 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
1179
1180 {"MicAmpL", NULL, "Analog Left Capture Route"},
1181 {"MicAmpR", NULL, "Analog Right Capture Route"},
1182
1183 {"ADC Left", NULL, "MicAmpL"},
1184 {"ADC Right", NULL, "MicAmpR"},
1185
1186 /* AFM path */
1187 {"AFMAmpL", "NULL", "AFML"},
1188 {"AFMAmpR", "NULL", "AFMR"},
1189
1190 {"HS Left Playback", "HS DAC", "HSDAC Left"},
1191 {"HS Left Playback", "Line-In amp", "AFMAmpL"},
1192
1193 {"HS Right Playback", "HS DAC", "HSDAC Right"},
1194 {"HS Right Playback", "Line-In amp", "AFMAmpR"},
1195
1196 {"Headset Left Driver", "NULL", "HS Left Playback"},
1197 {"Headset Right Driver", "NULL", "HS Right Playback"},
1198
1199 {"HSOL", NULL, "Headset Left Driver"},
1200 {"HSOR", NULL, "Headset Right Driver"},
1201
1202 /* Earphone playback path */
1203 {"Earphone Driver", "Switch", "HSDAC Left"},
1204 {"EP", NULL, "Earphone Driver"},
1205
1206 {"HF Left Playback", "HF DAC", "HFDAC Left"},
1207 {"HF Left Playback", "Line-In amp", "AFMAmpL"},
1208
1209 {"HF Right Playback", "HF DAC", "HFDAC Right"},
1210 {"HF Right Playback", "Line-In amp", "AFMAmpR"},
1211
1212 {"HFDAC Left PGA", NULL, "HF Left Playback"},
1213 {"HFDAC Right PGA", NULL, "HF Right Playback"},
1214
1215 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
1216 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
1217
1218 {"HFL", NULL, "Handsfree Left Driver"},
1219 {"HFR", NULL, "Handsfree Right Driver"},
1220 };
1221
1222 static int twl6040_add_widgets(struct snd_soc_codec *codec)
1223 {
1224 struct snd_soc_dapm_context *dapm = &codec->dapm;
1225
1226 snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
1227 ARRAY_SIZE(twl6040_dapm_widgets));
1228 snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
1229 snd_soc_dapm_new_widgets(dapm);
1230
1231 return 0;
1232 }
1233
1234 static int twl6040_power_up_completion(struct snd_soc_codec *codec,
1235 int naudint)
1236 {
1237 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1238 int time_left;
1239 u8 intid;
1240
1241 time_left = wait_for_completion_timeout(&priv->ready,
1242 msecs_to_jiffies(144));
1243
1244 if (!time_left) {
1245 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid,
1246 TWL6040_REG_INTID);
1247 if (!(intid & TWL6040_READYINT)) {
1248 dev_err(codec->dev, "timeout waiting for READYINT\n");
1249 return -ETIMEDOUT;
1250 }
1251 }
1252
1253 priv->codec_powered = 1;
1254
1255 return 0;
1256 }
1257
1258 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
1259 enum snd_soc_bias_level level)
1260 {
1261 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1262 int audpwron = priv->audpwron;
1263 int naudint = priv->naudint;
1264 int ret;
1265
1266 switch (level) {
1267 case SND_SOC_BIAS_ON:
1268 break;
1269 case SND_SOC_BIAS_PREPARE:
1270 break;
1271 case SND_SOC_BIAS_STANDBY:
1272 if (priv->codec_powered)
1273 break;
1274
1275 if (gpio_is_valid(audpwron)) {
1276 /* use AUDPWRON line */
1277 gpio_set_value(audpwron, 1);
1278
1279 /* wait for power-up completion */
1280 ret = twl6040_power_up_completion(codec, naudint);
1281 if (ret)
1282 return ret;
1283
1284 /* sync registers updated during power-up sequence */
1285 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
1286 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
1287 twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
1288 } else {
1289 /* use manual power-up sequence */
1290 twl6040_power_up(codec);
1291 priv->codec_powered = 1;
1292 }
1293
1294 /* initialize vdd/vss registers with reg_cache */
1295 twl6040_init_vdd_regs(codec);
1296
1297 /* Set external boost GPO */
1298 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
1299
1300 /* Set initial minimal gain values */
1301 twl6040_write(codec, TWL6040_REG_HSGAIN, 0xFF);
1302 twl6040_write(codec, TWL6040_REG_EARCTL, 0x1E);
1303 twl6040_write(codec, TWL6040_REG_HFLGAIN, 0x1D);
1304 twl6040_write(codec, TWL6040_REG_HFRGAIN, 0x1D);
1305 break;
1306 case SND_SOC_BIAS_OFF:
1307 if (!priv->codec_powered)
1308 break;
1309
1310 if (gpio_is_valid(audpwron)) {
1311 /* use AUDPWRON line */
1312 gpio_set_value(audpwron, 0);
1313
1314 /* power-down sequence latency */
1315 udelay(500);
1316
1317 /* sync registers updated during power-down sequence */
1318 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
1319 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
1320 twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
1321 0x00);
1322 } else {
1323 /* use manual power-down sequence */
1324 twl6040_power_down(codec);
1325 }
1326
1327 priv->codec_powered = 0;
1328 break;
1329 }
1330
1331 codec->dapm.bias_level = level;
1332
1333 return 0;
1334 }
1335
1336 /* set of rates for each pll: low-power and high-performance */
1337
1338 static unsigned int lp_rates[] = {
1339 88200,
1340 96000,
1341 };
1342
1343 static struct snd_pcm_hw_constraint_list lp_constraints = {
1344 .count = ARRAY_SIZE(lp_rates),
1345 .list = lp_rates,
1346 };
1347
1348 static unsigned int hp_rates[] = {
1349 96000,
1350 };
1351
1352 static struct snd_pcm_hw_constraint_list hp_constraints = {
1353 .count = ARRAY_SIZE(hp_rates),
1354 .list = hp_rates,
1355 };
1356
1357 static int twl6040_startup(struct snd_pcm_substream *substream,
1358 struct snd_soc_dai *dai)
1359 {
1360 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1361 struct snd_soc_codec *codec = rtd->codec;
1362 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1363
1364 snd_pcm_hw_constraint_list(substream->runtime, 0,
1365 SNDRV_PCM_HW_PARAM_RATE,
1366 priv->sysclk_constraints);
1367
1368 return 0;
1369 }
1370
1371 static int twl6040_hw_params(struct snd_pcm_substream *substream,
1372 struct snd_pcm_hw_params *params,
1373 struct snd_soc_dai *dai)
1374 {
1375 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1376 struct snd_soc_codec *codec = rtd->codec;
1377 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1378 u8 lppllctl;
1379 int rate;
1380
1381 /* nothing to do for high-perf pll, it supports only 48 kHz */
1382 if (priv->pll == TWL6040_HPPLL_ID)
1383 return 0;
1384
1385 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
1386
1387 rate = params_rate(params);
1388 switch (rate) {
1389 case 11250:
1390 case 22500:
1391 case 44100:
1392 case 88200:
1393 lppllctl |= TWL6040_LPLLFIN;
1394 priv->sysclk = 17640000;
1395 break;
1396 case 8000:
1397 case 16000:
1398 case 32000:
1399 case 48000:
1400 case 96000:
1401 lppllctl &= ~TWL6040_LPLLFIN;
1402 priv->sysclk = 19200000;
1403 break;
1404 default:
1405 dev_err(codec->dev, "unsupported rate %d\n", rate);
1406 return -EINVAL;
1407 }
1408
1409 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1410
1411 return 0;
1412 }
1413
1414 static int twl6040_prepare(struct snd_pcm_substream *substream,
1415 struct snd_soc_dai *dai)
1416 {
1417 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1418 struct snd_soc_codec *codec = rtd->codec;
1419 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1420
1421 if (!priv->sysclk) {
1422 dev_err(codec->dev,
1423 "no mclk configured, call set_sysclk() on init\n");
1424 return -EINVAL;
1425 }
1426
1427 /*
1428 * capture is not supported at 17.64 MHz,
1429 * it's reserved for headset low-power playback scenario
1430 */
1431 if ((priv->sysclk == 17640000) &&
1432 substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
1433 dev_err(codec->dev,
1434 "capture mode is not supported at %dHz\n",
1435 priv->sysclk);
1436 return -EINVAL;
1437 }
1438
1439 if ((priv->sysclk == 17640000) && priv->non_lp) {
1440 dev_err(codec->dev,
1441 "some enabled paths aren't supported at %dHz\n",
1442 priv->sysclk);
1443 return -EPERM;
1444 }
1445 return 0;
1446 }
1447
1448 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1449 int clk_id, unsigned int freq, int dir)
1450 {
1451 struct snd_soc_codec *codec = codec_dai->codec;
1452 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1453 u8 hppllctl, lppllctl;
1454
1455 hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL);
1456 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
1457
1458 switch (clk_id) {
1459 case TWL6040_SYSCLK_SEL_LPPLL:
1460 switch (freq) {
1461 case 32768:
1462 /* headset dac and driver must be in low-power mode */
1463 headset_power_mode(codec, 0);
1464
1465 /* clk32k input requires low-power pll */
1466 lppllctl |= TWL6040_LPLLENA;
1467 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1468 mdelay(5);
1469 lppllctl &= ~TWL6040_HPLLSEL;
1470 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1471 hppllctl &= ~TWL6040_HPLLENA;
1472 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
1473 break;
1474 default:
1475 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
1476 return -EINVAL;
1477 }
1478
1479 /* lppll divider */
1480 switch (priv->sysclk) {
1481 case 17640000:
1482 lppllctl |= TWL6040_LPLLFIN;
1483 break;
1484 case 19200000:
1485 lppllctl &= ~TWL6040_LPLLFIN;
1486 break;
1487 default:
1488 /* sysclk not yet configured */
1489 lppllctl &= ~TWL6040_LPLLFIN;
1490 priv->sysclk = 19200000;
1491 break;
1492 }
1493
1494 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1495
1496 priv->pll = TWL6040_LPPLL_ID;
1497 priv->sysclk_constraints = &lp_constraints;
1498 break;
1499 case TWL6040_SYSCLK_SEL_HPPLL:
1500 hppllctl &= ~TWL6040_MCLK_MSK;
1501
1502 switch (freq) {
1503 case 12000000:
1504 /* mclk input, pll enabled */
1505 hppllctl |= TWL6040_MCLK_12000KHZ |
1506 TWL6040_HPLLSQRBP |
1507 TWL6040_HPLLENA;
1508 break;
1509 case 19200000:
1510 /* mclk input, pll disabled */
1511 hppllctl |= TWL6040_MCLK_19200KHZ |
1512 TWL6040_HPLLSQRENA |
1513 TWL6040_HPLLBP;
1514 break;
1515 case 26000000:
1516 /* mclk input, pll enabled */
1517 hppllctl |= TWL6040_MCLK_26000KHZ |
1518 TWL6040_HPLLSQRBP |
1519 TWL6040_HPLLENA;
1520 break;
1521 case 38400000:
1522 /* clk slicer, pll disabled */
1523 hppllctl |= TWL6040_MCLK_38400KHZ |
1524 TWL6040_HPLLSQRENA |
1525 TWL6040_HPLLBP;
1526 break;
1527 default:
1528 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
1529 return -EINVAL;
1530 }
1531
1532 /* headset dac and driver must be in high-performance mode */
1533 headset_power_mode(codec, 1);
1534
1535 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
1536 udelay(500);
1537 lppllctl |= TWL6040_HPLLSEL;
1538 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1539 lppllctl &= ~TWL6040_LPLLENA;
1540 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1541
1542 /* high-performance pll can provide only 19.2 MHz */
1543 priv->pll = TWL6040_HPPLL_ID;
1544 priv->sysclk = 19200000;
1545 priv->sysclk_constraints = &hp_constraints;
1546 break;
1547 default:
1548 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1549 return -EINVAL;
1550 }
1551
1552 return 0;
1553 }
1554
1555 static struct snd_soc_dai_ops twl6040_dai_ops = {
1556 .startup = twl6040_startup,
1557 .hw_params = twl6040_hw_params,
1558 .prepare = twl6040_prepare,
1559 .set_sysclk = twl6040_set_dai_sysclk,
1560 };
1561
1562 static struct snd_soc_dai_driver twl6040_dai = {
1563 .name = "twl6040-hifi",
1564 .playback = {
1565 .stream_name = "Playback",
1566 .channels_min = 1,
1567 .channels_max = 4,
1568 .rates = TWL6040_RATES,
1569 .formats = TWL6040_FORMATS,
1570 },
1571 .capture = {
1572 .stream_name = "Capture",
1573 .channels_min = 1,
1574 .channels_max = 2,
1575 .rates = TWL6040_RATES,
1576 .formats = TWL6040_FORMATS,
1577 },
1578 .ops = &twl6040_dai_ops,
1579 };
1580
1581 #ifdef CONFIG_PM
1582 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1583 {
1584 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1585
1586 return 0;
1587 }
1588
1589 static int twl6040_resume(struct snd_soc_codec *codec)
1590 {
1591 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1592 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1593
1594 return 0;
1595 }
1596 #else
1597 #define twl6040_suspend NULL
1598 #define twl6040_resume NULL
1599 #endif
1600
1601 static int twl6040_probe(struct snd_soc_codec *codec)
1602 {
1603 struct twl4030_codec_data *twl_codec = codec->dev->platform_data;
1604 struct twl6040_data *priv;
1605 int audpwron, naudint;
1606 int ret = 0;
1607 u8 icrev, intmr = TWL6040_ALLINT_MSK;
1608
1609 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1610 if (priv == NULL)
1611 return -ENOMEM;
1612 snd_soc_codec_set_drvdata(codec, priv);
1613
1614 priv->codec = codec;
1615
1616 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &icrev, TWL6040_REG_ASICREV);
1617
1618 if (twl_codec && (icrev > 0))
1619 audpwron = twl_codec->audpwron_gpio;
1620 else
1621 audpwron = -EINVAL;
1622
1623 if (twl_codec)
1624 naudint = twl_codec->naudint_irq;
1625 else
1626 naudint = 0;
1627
1628 priv->audpwron = audpwron;
1629 priv->naudint = naudint;
1630 priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1631
1632 if (!priv->workqueue) {
1633 ret = -ENOMEM;
1634 goto work_err;
1635 }
1636
1637 INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1638
1639 mutex_init(&priv->mutex);
1640
1641 init_completion(&priv->ready);
1642 init_completion(&priv->headset.ramp_done);
1643 init_completion(&priv->handsfree.ramp_done);
1644
1645 if (gpio_is_valid(audpwron)) {
1646 ret = gpio_request(audpwron, "audpwron");
1647 if (ret)
1648 goto gpio1_err;
1649
1650 ret = gpio_direction_output(audpwron, 0);
1651 if (ret)
1652 goto gpio2_err;
1653
1654 priv->codec_powered = 0;
1655
1656 /* enable only codec ready interrupt */
1657 intmr &= ~(TWL6040_READYMSK | TWL6040_PLUGMSK);
1658
1659 /* reset interrupt status to allow correct power up sequence */
1660 twl6040_read_reg_volatile(codec, TWL6040_REG_INTID);
1661 }
1662 twl6040_write(codec, TWL6040_REG_INTMR, intmr);
1663
1664 if (naudint) {
1665 /* audio interrupt */
1666 ret = request_threaded_irq(naudint, NULL,
1667 twl6040_naudint_handler,
1668 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1669 "twl6040_codec", codec);
1670 if (ret)
1671 goto gpio2_err;
1672 }
1673
1674 /* init vio registers */
1675 twl6040_init_vio_regs(codec);
1676
1677 priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
1678 if (priv->hf_workqueue == NULL) {
1679 ret = -ENOMEM;
1680 goto irq_err;
1681 }
1682 priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
1683 if (priv->hs_workqueue == NULL) {
1684 ret = -ENOMEM;
1685 goto wq_err;
1686 }
1687
1688 INIT_DELAYED_WORK(&priv->hs_delayed_work, twl6040_pga_hs_work);
1689 INIT_DELAYED_WORK(&priv->hf_delayed_work, twl6040_pga_hf_work);
1690
1691 /* power on device */
1692 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1693 if (ret)
1694 goto bias_err;
1695
1696 snd_soc_add_controls(codec, twl6040_snd_controls,
1697 ARRAY_SIZE(twl6040_snd_controls));
1698 twl6040_add_widgets(codec);
1699
1700 return 0;
1701
1702 bias_err:
1703 destroy_workqueue(priv->hs_workqueue);
1704 wq_err:
1705 destroy_workqueue(priv->hf_workqueue);
1706 irq_err:
1707 if (naudint)
1708 free_irq(naudint, codec);
1709 gpio2_err:
1710 if (gpio_is_valid(audpwron))
1711 gpio_free(audpwron);
1712 gpio1_err:
1713 destroy_workqueue(priv->workqueue);
1714 work_err:
1715 kfree(priv);
1716 return ret;
1717 }
1718
1719 static int twl6040_remove(struct snd_soc_codec *codec)
1720 {
1721 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1722 int audpwron = priv->audpwron;
1723 int naudint = priv->naudint;
1724
1725 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1726
1727 if (gpio_is_valid(audpwron))
1728 gpio_free(audpwron);
1729
1730 if (naudint)
1731 free_irq(naudint, codec);
1732
1733 destroy_workqueue(priv->workqueue);
1734 destroy_workqueue(priv->hf_workqueue);
1735 destroy_workqueue(priv->hs_workqueue);
1736 kfree(priv);
1737
1738 return 0;
1739 }
1740
1741 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1742 .probe = twl6040_probe,
1743 .remove = twl6040_remove,
1744 .suspend = twl6040_suspend,
1745 .resume = twl6040_resume,
1746 .read = twl6040_read_reg_cache,
1747 .write = twl6040_write,
1748 .set_bias_level = twl6040_set_bias_level,
1749 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1750 .reg_word_size = sizeof(u8),
1751 .reg_cache_default = twl6040_reg,
1752 };
1753
1754 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1755 {
1756 return snd_soc_register_codec(&pdev->dev,
1757 &soc_codec_dev_twl6040, &twl6040_dai, 1);
1758 }
1759
1760 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1761 {
1762 snd_soc_unregister_codec(&pdev->dev);
1763 return 0;
1764 }
1765
1766 static struct platform_driver twl6040_codec_driver = {
1767 .driver = {
1768 .name = "twl6040-codec",
1769 .owner = THIS_MODULE,
1770 },
1771 .probe = twl6040_codec_probe,
1772 .remove = __devexit_p(twl6040_codec_remove),
1773 };
1774
1775 static int __init twl6040_codec_init(void)
1776 {
1777 return platform_driver_register(&twl6040_codec_driver);
1778 }
1779 module_init(twl6040_codec_init);
1780
1781 static void __exit twl6040_codec_exit(void)
1782 {
1783 platform_driver_unregister(&twl6040_codec_driver);
1784 }
1785 module_exit(twl6040_codec_exit);
1786
1787 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1788 MODULE_AUTHOR("Misael Lopez Cruz");
1789 MODULE_LICENSE("GPL");
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