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Merge branch 'ebt_config_compat_v4' of git://git.breakpoint.cc/fw/nf-next-2.6
[net-next-2.6.git] / sound / soc / codecs / tlv320aic23.c
CommitLineData
c1f27190
AK		 1/*
2 * ALSA SoC TLV320AIC23 codec driver
3 *
4 * Author: Arun KS, <arunks@mistralsolutions.com>
5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
6 *
7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Notes:
14 * The AIC23 is a driver for a low power stereo audio
15 * codec tlv320aic23
16 *
17 * The machine layer should disable unsupported inputs/outputs by
18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
19 */
20
21#include <linux/module.h>
22#include <linux/moduleparam.h>
23#include <linux/init.h>
24#include <linux/delay.h>
25#include <linux/pm.h>
26#include <linux/i2c.h>
27#include <linux/platform_device.h>
28#include <sound/core.h>
29#include <sound/pcm.h>
30#include <sound/pcm_params.h>
31#include <sound/soc.h>
32#include <sound/soc-dapm.h>
33#include <sound/tlv.h>
34#include <sound/initval.h>
35
36#include "tlv320aic23.h"
37
c1f27190
AK		 38#define AIC23_VERSION "0.1"
39
c1f27190
AK		 40/*
41 * AIC23 register cache
42 */
43static const u16 tlv320aic23_reg[] = {
44 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */
45 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */
46 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */
47 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */
48};
49
50/*
51 * read tlv320aic23 register cache
52 */
53static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec
54 *codec, unsigned int reg)
55{
56 u16 *cache = codec->reg_cache;
57 if (reg >= ARRAY_SIZE(tlv320aic23_reg))
58 return -1;
59 return cache[reg];
60}
61
62/*
63 * write tlv320aic23 register cache
64 */
65static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec,
66 u8 reg, u16 value)
67{
68 u16 *cache = codec->reg_cache;
69 if (reg >= ARRAY_SIZE(tlv320aic23_reg))
70 return;
71 cache[reg] = value;
72}
73
74/*
75 * write to the tlv320aic23 register space
76 */
77static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,
78 unsigned int value)
79{
80
4aa02396 81 u8 data[2];
c1f27190
AK		 82
83 /* TLV320AIC23 has 7 bit address and 9 bits of data
84 * so we need to switch one data bit into reg and rest
85 * of data into val
86 */
87
84ed1a19 88 if (reg > 9 && reg != 15) {
449bd54d 89 printk(KERN_WARNING "%s Invalid register R%u\n", __func__, reg);
c1f27190
AK		 90 return -1;
91 }
92
4aa02396
AK		 93 data[0] = (reg << 1) | (value >> 8 & 0x01);
94 data[1] = value & 0xff;
c1f27190
AK		 95
96 tlv320aic23_write_reg_cache(codec, reg, value);
97
4aa02396 98 if (codec->hw_write(codec->control_data, data, 2) == 2)
c1f27190
AK		 99 return 0;
100
449bd54d 101 printk(KERN_ERR "%s cannot write %03x to register R%u\n", __func__,
c1f27190
AK		 102 value, reg);
103
104 return -EIO;
105}
106
107static const char *rec_src_text[] = { "Line", "Mic" };
108static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
c1f27190
AK		 109
110static const struct soc_enum rec_src_enum =
111 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
112
113static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
114SOC_DAPM_ENUM("Input Select", rec_src_enum);
115
116static const struct soc_enum tlv320aic23_rec_src =
117 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
118static const struct soc_enum tlv320aic23_deemph =
119 SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text);
c1f27190
AK		 120
121static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
122static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
df91ddf1
AK		 123static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
124
125static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
126 struct snd_ctl_elem_value *ucontrol)
127{
128 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
129 u16 val, reg;
130
131 val = (ucontrol->value.integer.value[0] & 0x07);
132
133 /* linear conversion to userspace
134 * 000 = -6db
135 * 001 = -9db
136 * 010 = -12db
137 * 011 = -18db (Min)
138 * 100 = 0db (Max)
139 */
140 val = (val >= 4) ? 4 : (3 - val);
141
142 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0);
143 tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6));
144
145 return 0;
146}
147
148static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
149 struct snd_ctl_elem_value *ucontrol)
150{
151 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
152 u16 val;
153
154 val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0);
155 val = val >> 6;
156 val = (val >= 4) ? 4 : (3 - val);
157 ucontrol->value.integer.value[0] = val;
158 return 0;
159
160}
161
162#define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
163{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
164 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
165 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
166 .tlv.p = (tlv_array), \
167 .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\
168 .put = snd_soc_tlv320aic23_put_volsw, \
169 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
c1f27190
AK		 170
171static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
172 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
173 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
174 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
175 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
176 TLV320AIC23_RINVOL, 7, 1, 0),
177 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
178 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
179 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
180 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
df91ddf1
AK		 181 SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG,
182 6, 4, 0, sidetone_vol_tlv),
c1f27190
AK		 183 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
184};
185
c1f27190
AK		 186/* PGA Mixer controls for Line and Mic switch */
187static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
188 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
189 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
190 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
191};
192
193static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
194 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
195 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
196 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
197 &tlv320aic23_rec_src_mux_controls),
198 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
199 &tlv320aic23_output_mixer_controls[0],
200 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
201 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
202 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
203
204 SND_SOC_DAPM_OUTPUT("LHPOUT"),
205 SND_SOC_DAPM_OUTPUT("RHPOUT"),
206 SND_SOC_DAPM_OUTPUT("LOUT"),
207 SND_SOC_DAPM_OUTPUT("ROUT"),
208
209 SND_SOC_DAPM_INPUT("LLINEIN"),
210 SND_SOC_DAPM_INPUT("RLINEIN"),
211
212 SND_SOC_DAPM_INPUT("MICIN"),
213};
214
215static const struct snd_soc_dapm_route intercon[] = {
216 /* Output Mixer */
217 {"Output Mixer", "Line Bypass Switch", "Line Input"},
218 {"Output Mixer", "Playback Switch", "DAC"},
219 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
220
221 /* Outputs */
222 {"RHPOUT", NULL, "Output Mixer"},
223 {"LHPOUT", NULL, "Output Mixer"},
224 {"LOUT", NULL, "Output Mixer"},
225 {"ROUT", NULL, "Output Mixer"},
226
227 /* Inputs */
228 {"Line Input", "NULL", "LLINEIN"},
229 {"Line Input", "NULL", "RLINEIN"},
230
231 {"Mic Input", "NULL", "MICIN"},
232
233 /* input mux */
234 {"Capture Source", "Line", "Line Input"},
235 {"Capture Source", "Mic", "Mic Input"},
236 {"ADC", NULL, "Capture Source"},
237
238};
239
26df91c3
TK		 240/* AIC23 driver data */
241struct aic23 {
242 struct snd_soc_codec codec;
243 int mclk;
244 int requested_adc;
245 int requested_dac;
246};
247
248/*
249 * Common Crystals used
250 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k
251 * 12.0000 Mhz /125 = *96k /136 = 88.235K
252 * 12.2880 Mhz /128 = *96k /192 = 64k
253 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
254 * 18.4320 Mhz /128 = 144k /192 = *96k
255 */
256
257/*
258 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
259 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
260 */
261static const int bosr_usb_divisor_table[] = {
262 128, 125, 192, 136
263};
264#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
265#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
266static const unsigned short sr_valid_mask[] = {
267 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/
26df91c3 268 LOWER_GROUP, /* Usb, bosr - 0*/
bab02124 269 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/
26df91c3
TK		 270 UPPER_GROUP, /* Usb, bosr - 1*/
271};
272/*
273 * Every divisor is a factor of 11*12
274 */
275#define SR_MULT (11*12)
ccff4b15 276#define A(x) (SR_MULT/x)
26df91c3 277static const unsigned char sr_adc_mult_table[] = {
ccff4b15
TK		 278 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),
279 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)
26df91c3
TK		 280};
281static const unsigned char sr_dac_mult_table[] = {
ccff4b15
TK		 282 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),
283 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)
c1f27190
AK		 284};
285
26df91c3
TK		 286static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
287 int dac, int dac_l, int dac_h, int need_dac)
288{
289 if ((adc >= adc_l) && (adc <= adc_h) &&
290 (dac >= dac_l) && (dac <= dac_h)) {
291 int diff_adc = need_adc - adc;
292 int diff_dac = need_dac - dac;
293 return abs(diff_adc) + abs(diff_dac);
294 }
295 return UINT_MAX;
296}
297
298static int find_rate(int mclk, u32 need_adc, u32 need_dac)
299{
300 int i, j;
301 int best_i = -1;
302 int best_j = -1;
303 int best_div = 0;
304 unsigned best_score = UINT_MAX;
305 int adc_l, adc_h, dac_l, dac_h;
306
307 need_adc *= SR_MULT;
308 need_dac *= SR_MULT;
309 /*
310 * rates given are +/- 1/32
311 */
312 adc_l = need_adc - (need_adc >> 5);
313 adc_h = need_adc + (need_adc >> 5);
314 dac_l = need_dac - (need_dac >> 5);
315 dac_h = need_dac + (need_dac >> 5);
8d702f23 316 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
26df91c3
TK		 317 int base = mclk / bosr_usb_divisor_table[i];
318 int mask = sr_valid_mask[i];
8d702f23
MB		 319 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
320 j++, mask >>= 1) {
26df91c3
TK		 321 int adc;
322 int dac;
323 int score;
324 if ((mask & 1) == 0)
325 continue;
326 adc = base * sr_adc_mult_table[j];
327 dac = base * sr_dac_mult_table[j];
328 score = get_score(adc, adc_l, adc_h, need_adc,
329 dac, dac_l, dac_h, need_dac);
330 if (best_score > score) {
331 best_score = score;
332 best_i = i;
333 best_j = j;
334 best_div = 0;
335 }
336 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
337 (dac >> 1), dac_l, dac_h, need_dac);
338 /* prefer to have a /2 */
339 if ((score != UINT_MAX) && (best_score >= score)) {
340 best_score = score;
341 best_i = i;
342 best_j = j;
343 best_div = 1;
344 }
345 }
346 }
347 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
348}
349
8d702f23 350#ifdef DEBUG
26df91c3
TK		 351static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk,
352 u32 *sample_rate_adc, u32 *sample_rate_dac)
353{
354 int src = tlv320aic23_read_reg_cache(codec, TLV320AIC23_SRATE);
355 int sr = (src >> 2) & 0x0f;
356 int val = (mclk / bosr_usb_divisor_table[src & 3]);
357 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
358 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
359 if (src & TLV320AIC23_CLKIN_HALF) {
360 adc >>= 1;
361 dac >>= 1;
362 }
363 *sample_rate_adc = adc;
364 *sample_rate_dac = dac;
365}
8d702f23 366#endif
26df91c3
TK		 367
368static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk,
369 u32 sample_rate_adc, u32 sample_rate_dac)
370{
371 /* Search for the right sample rate */
372 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
373 if (data < 0) {
374 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
375 __func__, sample_rate_adc, sample_rate_dac);
376 return -EINVAL;
377 }
378 tlv320aic23_write(codec, TLV320AIC23_SRATE, data);
8d702f23
MB		 379#ifdef DEBUG
380 {
381 u32 adc, dac;
26df91c3
TK		 382 get_current_sample_rates(codec, mclk, &adc, &dac);
383 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
384 adc, dac, data);
385 }
8d702f23 386#endif
26df91c3
TK		 387 return 0;
388}
389
c1f27190
AK		 390static int tlv320aic23_add_widgets(struct snd_soc_codec *codec)
391{
392 snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
393 ARRAY_SIZE(tlv320aic23_dapm_widgets));
394
395 /* set up audio path interconnects */
396 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
397
c1f27190
AK		 398 return 0;
399}
400
401static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
dee89c4d
MB		 402 struct snd_pcm_hw_params *params,
403 struct snd_soc_dai *dai)
c1f27190
AK		 404{
405 struct snd_soc_pcm_runtime *rtd = substream->private_data;
406 struct snd_soc_device *socdev = rtd->socdev;
6627a653 407 struct snd_soc_codec *codec = socdev->card->codec;
26df91c3
TK		 408 u16 iface_reg;
409 int ret;
410 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
411 u32 sample_rate_adc = aic23->requested_adc;
412 u32 sample_rate_dac = aic23->requested_dac;
413 u32 sample_rate = params_rate(params);
414
415 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
416 aic23->requested_dac = sample_rate_dac = sample_rate;
417 if (!sample_rate_adc)
418 sample_rate_adc = sample_rate;
419 } else {
420 aic23->requested_adc = sample_rate_adc = sample_rate;
421 if (!sample_rate_dac)
422 sample_rate_dac = sample_rate;
423 }
424 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc,
425 sample_rate_dac);
426 if (ret < 0)
427 return ret;
c1f27190
AK		 428
429 iface_reg =
430 tlv320aic23_read_reg_cache(codec,
431 TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
c1f27190
AK		 432 switch (params_format(params)) {
433 case SNDRV_PCM_FORMAT_S16_LE:
434 break;
435 case SNDRV_PCM_FORMAT_S20_3LE:
436 iface_reg |= (0x01 << 2);
437 break;
438 case SNDRV_PCM_FORMAT_S24_LE:
439 iface_reg |= (0x02 << 2);
440 break;
441 case SNDRV_PCM_FORMAT_S32_LE:
442 iface_reg |= (0x03 << 2);
443 break;
444 }
445 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
446
447 return 0;
448}
449
dee89c4d
MB		 450static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
451 struct snd_soc_dai *dai)
c1f27190
AK		 452{
453 struct snd_soc_pcm_runtime *rtd = substream->private_data;
454 struct snd_soc_device *socdev = rtd->socdev;
6627a653 455 struct snd_soc_codec *codec = socdev->card->codec;
c1f27190
AK		 456
457 /* set active */
458 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
459
460 return 0;
461}
462
dee89c4d
MB		 463static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
464 struct snd_soc_dai *dai)
c1f27190
AK		 465{
466 struct snd_soc_pcm_runtime *rtd = substream->private_data;
467 struct snd_soc_device *socdev = rtd->socdev;
6627a653 468 struct snd_soc_codec *codec = socdev->card->codec;
26df91c3 469 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
c1f27190
AK		 470
471 /* deactivate */
472 if (!codec->active) {
473 udelay(50);
474 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
475 }
26df91c3
TK		 476 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
477 aic23->requested_dac = 0;
478 else
479 aic23->requested_adc = 0;
c1f27190
AK		 480}
481
482static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
483{
484 struct snd_soc_codec *codec = dai->codec;
485 u16 reg;
486
487 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
488 if (mute)
489 reg |= TLV320AIC23_DACM_MUTE;
490
491 else
492 reg &= ~TLV320AIC23_DACM_MUTE;
493
494 tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);
495
496 return 0;
497}
498
499static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
500 unsigned int fmt)
501{
502 struct snd_soc_codec *codec = codec_dai->codec;
503 u16 iface_reg;
504
505 iface_reg =
506 tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
507
508 /* set master/slave audio interface */
509 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
510 case SND_SOC_DAIFMT_CBM_CFM:
511 iface_reg |= TLV320AIC23_MS_MASTER;
512 break;
513 case SND_SOC_DAIFMT_CBS_CFS:
514 break;
515 default:
516 return -EINVAL;
517
518 }
519
520 /* interface format */
521 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
522 case SND_SOC_DAIFMT_I2S:
523 iface_reg |= TLV320AIC23_FOR_I2S;
524 break;
894bf92f
PU		 525 case SND_SOC_DAIFMT_DSP_A:
526 iface_reg |= TLV320AIC23_LRP_ON;
bd25867a 527 case SND_SOC_DAIFMT_DSP_B:
c1f27190
AK		 528 iface_reg |= TLV320AIC23_FOR_DSP;
529 break;
530 case SND_SOC_DAIFMT_RIGHT_J:
531 break;
532 case SND_SOC_DAIFMT_LEFT_J:
533 iface_reg |= TLV320AIC23_FOR_LJUST;
534 break;
535 default:
536 return -EINVAL;
537
538 }
539
540 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
541
542 return 0;
543}
544
545static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
546 int clk_id, unsigned int freq, int dir)
547{
548 struct snd_soc_codec *codec = codec_dai->codec;
26df91c3
TK		 549 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
550 aic23->mclk = freq;
551 return 0;
c1f27190
AK		 552}
553
554static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
555 enum snd_soc_bias_level level)
556{
557 u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;
558
559 switch (level) {
560 case SND_SOC_BIAS_ON:
561 /* vref/mid, osc on, dac unmute */
562 tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
563 break;
564 case SND_SOC_BIAS_PREPARE:
565 break;
566 case SND_SOC_BIAS_STANDBY:
567 /* everything off except vref/vmid, */
568 tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040);
569 break;
570 case SND_SOC_BIAS_OFF:
571 /* everything off, dac mute, inactive */
572 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
573 tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
574 break;
575 }
576 codec->bias_level = level;
577 return 0;
578}
579
580#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
581#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
582 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
583
6335d055
EM		 584static struct snd_soc_dai_ops tlv320aic23_dai_ops = {
585 .prepare = tlv320aic23_pcm_prepare,
586 .hw_params = tlv320aic23_hw_params,
587 .shutdown = tlv320aic23_shutdown,
588 .digital_mute = tlv320aic23_mute,
589 .set_fmt = tlv320aic23_set_dai_fmt,
590 .set_sysclk = tlv320aic23_set_dai_sysclk,
591};
592
c1f27190
AK		 593struct snd_soc_dai tlv320aic23_dai = {
594 .name = "tlv320aic23",
595 .playback = {
596 .stream_name = "Playback",
597 .channels_min = 2,
598 .channels_max = 2,
599 .rates = AIC23_RATES,
600 .formats = AIC23_FORMATS,},
601 .capture = {
602 .stream_name = "Capture",
603 .channels_min = 2,
604 .channels_max = 2,
605 .rates = AIC23_RATES,
606 .formats = AIC23_FORMATS,},
6335d055 607 .ops = &tlv320aic23_dai_ops,
c1f27190
AK		 608};
609EXPORT_SYMBOL_GPL(tlv320aic23_dai);
610
611static int tlv320aic23_suspend(struct platform_device *pdev,
612 pm_message_t state)
613{
614 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 615 struct snd_soc_codec *codec = socdev->card->codec;
c1f27190
AK		 616
617 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
618 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
619
620 return 0;
621}
622
623static int tlv320aic23_resume(struct platform_device *pdev)
624{
625 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 626 struct snd_soc_codec *codec = socdev->card->codec;
c1f27190
AK		 627 u16 reg;
628
629 /* Sync reg_cache with the hardware */
3e59aaa7 630 for (reg = 0; reg <= TLV320AIC23_ACTIVE; reg++) {
c1f27190
AK		 631 u16 val = tlv320aic23_read_reg_cache(codec, reg);
632 tlv320aic23_write(codec, reg, val);
633 }
634
635 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
636 tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);
637
638 return 0;
639}
640
641/*
642 * initialise the AIC23 driver
643 * register the mixer and dsp interfaces with the kernel
644 */
645static int tlv320aic23_init(struct snd_soc_device *socdev)
646{
6627a653 647 struct snd_soc_codec *codec = socdev->card->codec;
c1f27190
AK		 648 int ret = 0;
649 u16 reg;
650
651 codec->name = "tlv320aic23";
652 codec->owner = THIS_MODULE;
653 codec->read = tlv320aic23_read_reg_cache;
654 codec->write = tlv320aic23_write;
655 codec->set_bias_level = tlv320aic23_set_bias_level;
656 codec->dai = &tlv320aic23_dai;
657 codec->num_dai = 1;
658 codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
659 codec->reg_cache =
660 kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
661 if (codec->reg_cache == NULL)
662 return -ENOMEM;
663
664 /* Reset codec */
665 tlv320aic23_write(codec, TLV320AIC23_RESET, 0);
666
667 /* register pcms */
668 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
669 if (ret < 0) {
670 printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
671 goto pcm_err;
672 }
673
674 /* power on device */
675 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
676
677 tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
678
679 /* Unmute input */
680 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
681 tlv320aic23_write(codec, TLV320AIC23_LINVOL,
682 (reg & (~TLV320AIC23_LIM_MUTED)) |
683 (TLV320AIC23_LRS_ENABLED));
684
685 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
686 tlv320aic23_write(codec, TLV320AIC23_RINVOL,
687 (reg & (~TLV320AIC23_LIM_MUTED)) |
688 TLV320AIC23_LRS_ENABLED);
689
690 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
691 tlv320aic23_write(codec, TLV320AIC23_ANLG,
692 (reg) & (~TLV320AIC23_BYPASS_ON) &
693 (~TLV320AIC23_MICM_MUTED));
694
695 /* Default output volume */
696 tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
697 TLV320AIC23_DEFAULT_OUT_VOL &
698 TLV320AIC23_OUT_VOL_MASK);
699 tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
700 TLV320AIC23_DEFAULT_OUT_VOL &
701 TLV320AIC23_OUT_VOL_MASK);
702
703 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
704
3e8e1952
IM		 705 snd_soc_add_controls(codec, tlv320aic23_snd_controls,
706 ARRAY_SIZE(tlv320aic23_snd_controls));
c1f27190 707 tlv320aic23_add_widgets(codec);
c1f27190
AK		 708
709 return ret;
710
c1f27190
AK		 711pcm_err:
712 kfree(codec->reg_cache);
713 return ret;
714}
715static struct snd_soc_device *tlv320aic23_socdev;
716
717#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
718/*
719 * If the i2c layer weren't so broken, we could pass this kind of data
720 * around
721 */
722static int tlv320aic23_codec_probe(struct i2c_client *i2c,
723 const struct i2c_device_id *i2c_id)
724{
725 struct snd_soc_device *socdev = tlv320aic23_socdev;
6627a653 726 struct snd_soc_codec *codec = socdev->card->codec;
c1f27190
AK		 727 int ret;
728
729 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
730 return -EINVAL;
731
732 i2c_set_clientdata(i2c, codec);
733 codec->control_data = i2c;
734
735 ret = tlv320aic23_init(socdev);
736 if (ret < 0) {
737 printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
738 goto err;
739 }
740 return ret;
741
742err:
743 kfree(codec);
744 kfree(i2c);
745 return ret;
746}
747static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
748{
749 put_device(&i2c->dev);
750 return 0;
751}
752
753static const struct i2c_device_id tlv320aic23_id[] = {
754 {"tlv320aic23", 0},
755 {}
756};
757
758MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
759
760static struct i2c_driver tlv320aic23_i2c_driver = {
761 .driver = {
762 .name = "tlv320aic23",
763 },
764 .probe = tlv320aic23_codec_probe,
765 .remove = __exit_p(tlv320aic23_i2c_remove),
766 .id_table = tlv320aic23_id,
767};
768
769#endif
770
771static int tlv320aic23_probe(struct platform_device *pdev)
772{
773 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
774 struct snd_soc_codec *codec;
26df91c3 775 struct aic23 *aic23;
c1f27190
AK		 776 int ret = 0;
777
778 printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);
779
26df91c3
TK		 780 aic23 = kzalloc(sizeof(struct aic23), GFP_KERNEL);
781 if (aic23 == NULL)
c1f27190 782 return -ENOMEM;
26df91c3 783 codec = &aic23->codec;
6627a653 784 socdev->card->codec = codec;
c1f27190
AK		 785 mutex_init(&codec->mutex);
786 INIT_LIST_HEAD(&codec->dapm_widgets);
787 INIT_LIST_HEAD(&codec->dapm_paths);
788
789 tlv320aic23_socdev = socdev;
790#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
4aa02396 791 codec->hw_write = (hw_write_t) i2c_master_send;
c1f27190
AK		 792 codec->hw_read = NULL;
793 ret = i2c_add_driver(&tlv320aic23_i2c_driver);
794 if (ret != 0)
795 printk(KERN_ERR "can't add i2c driver");
796#endif
797 return ret;
798}
799
800static int tlv320aic23_remove(struct platform_device *pdev)
801{
802 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
6627a653 803 struct snd_soc_codec *codec = socdev->card->codec;
26df91c3 804 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
c1f27190
AK		 805
806 if (codec->control_data)
807 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
808
809 snd_soc_free_pcms(socdev);
810 snd_soc_dapm_free(socdev);
811#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
812 i2c_del_driver(&tlv320aic23_i2c_driver);
813#endif
814 kfree(codec->reg_cache);
26df91c3 815 kfree(aic23);
c1f27190
AK		 816
817 return 0;
818}
819struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
820 .probe = tlv320aic23_probe,
821 .remove = tlv320aic23_remove,
822 .suspend = tlv320aic23_suspend,
823 .resume = tlv320aic23_resume,
824};
825EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);
826
c9b3a40f 827static int __init tlv320aic23_modinit(void)
64089b84
MB		 828{
829 return snd_soc_register_dai(&tlv320aic23_dai);
830}
831module_init(tlv320aic23_modinit);
832
833static void __exit tlv320aic23_exit(void)
834{
835 snd_soc_unregister_dai(&tlv320aic23_dai);
836}
837module_exit(tlv320aic23_exit);
838
c1f27190
AK		 839MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
840MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
841MODULE_LICENSE("GPL");
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