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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
38#define AIC23_VERSION "0.1"
39
40
41
42
43static const u16 tlv320aic23_reg[] = {
44 0x0097, 0x0097, 0x00F9, 0x00F9,
45 0x001A, 0x0004, 0x0007, 0x0001,
46 0x0020, 0x0000, 0x0000, 0x0000,
47 0x0000, 0x0000, 0x0000, 0x0000,
48};
49
50
51
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
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
76
77static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,
78 unsigned int value)
79{
80
81 u8 data[2];
82
83
84
85
86
87
88 if ((reg < 0 || reg > 9) && (reg != 15)) {
89 printk(KERN_WARNING "%s Invalid register R%u\n", __func__, reg);
90 return -1;
91 }
92
93 data[0] = (reg << 1) | (value >> 8 & 0x01);
94 data[1] = value & 0xff;
95
96 tlv320aic23_write_reg_cache(codec, reg, value);
97
98 if (codec->hw_write(codec->control_data, data, 2) == 2)
99 return 0;
100
101 printk(KERN_ERR "%s cannot write %03x to register R%u\n", __func__,
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"};
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);
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);
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
134
135
136
137
138
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) }
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),
181 SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG,
182 6, 4, 0, sidetone_vol_tlv),
183 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
184};
185
186
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
217 {"Output Mixer", "Line Bypass Switch", "Line Input"},
218 {"Output Mixer", "Playback Switch", "DAC"},
219 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
220
221
222 {"RHPOUT", NULL, "Output Mixer"},
223 {"LHPOUT", NULL, "Output Mixer"},
224 {"LOUT", NULL, "Output Mixer"},
225 {"ROUT", NULL, "Output Mixer"},
226
227
228 {"Line Input", "NULL", "LLINEIN"},
229 {"Line Input", "NULL", "RLINEIN"},
230
231 {"Mic Input", "NULL", "MICIN"},
232
233
234 {"Capture Source", "Line", "Line Input"},
235 {"Capture Source", "Mic", "Mic Input"},
236 {"ADC", NULL, "Capture Source"},
237
238};
239
240
241struct aic23 {
242 struct snd_soc_codec codec;
243 int mclk;
244 int requested_adc;
245 int requested_dac;
246};
247
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259
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,
268 LOWER_GROUP,
269 LOWER_GROUP|UPPER_GROUP,
270 UPPER_GROUP,
271};
272
273
274
275#define SR_MULT (11*12)
276#define A(x) (SR_MULT/x)
277static const unsigned char sr_adc_mult_table[] = {
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)
280};
281static const unsigned char sr_dac_mult_table[] = {
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)
284};
285
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
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);
316 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
317 int base = mclk / bosr_usb_divisor_table[i];
318 int mask = sr_valid_mask[i];
319 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
320 j++, mask >>= 1) {
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
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
350#ifdef DEBUG
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}
366#endif
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
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);
379#ifdef DEBUG
380 {
381 u32 adc, dac;
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 }
386#endif
387 return 0;
388}
389
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
396 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
397
398 snd_soc_dapm_new_widgets(codec);
399 return 0;
400}
401
402static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
403 struct snd_pcm_hw_params *params,
404 struct snd_soc_dai *dai)
405{
406 struct snd_soc_pcm_runtime *rtd = substream->private_data;
407 struct snd_soc_device *socdev = rtd->socdev;
408 struct snd_soc_codec *codec = socdev->card->codec;
409 u16 iface_reg;
410 int ret;
411 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
412 u32 sample_rate_adc = aic23->requested_adc;
413 u32 sample_rate_dac = aic23->requested_dac;
414 u32 sample_rate = params_rate(params);
415
416 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
417 aic23->requested_dac = sample_rate_dac = sample_rate;
418 if (!sample_rate_adc)
419 sample_rate_adc = sample_rate;
420 } else {
421 aic23->requested_adc = sample_rate_adc = sample_rate;
422 if (!sample_rate_dac)
423 sample_rate_dac = sample_rate;
424 }
425 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc,
426 sample_rate_dac);
427 if (ret < 0)
428 return ret;
429
430 iface_reg =
431 tlv320aic23_read_reg_cache(codec,
432 TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
433 switch (params_format(params)) {
434 case SNDRV_PCM_FORMAT_S16_LE:
435 break;
436 case SNDRV_PCM_FORMAT_S20_3LE:
437 iface_reg |= (0x01 << 2);
438 break;
439 case SNDRV_PCM_FORMAT_S24_LE:
440 iface_reg |= (0x02 << 2);
441 break;
442 case SNDRV_PCM_FORMAT_S32_LE:
443 iface_reg |= (0x03 << 2);
444 break;
445 }
446 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
447
448 return 0;
449}
450
451static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
452 struct snd_soc_dai *dai)
453{
454 struct snd_soc_pcm_runtime *rtd = substream->private_data;
455 struct snd_soc_device *socdev = rtd->socdev;
456 struct snd_soc_codec *codec = socdev->card->codec;
457
458
459 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
460
461 return 0;
462}
463
464static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
465 struct snd_soc_dai *dai)
466{
467 struct snd_soc_pcm_runtime *rtd = substream->private_data;
468 struct snd_soc_device *socdev = rtd->socdev;
469 struct snd_soc_codec *codec = socdev->card->codec;
470 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
471
472
473 if (!codec->active) {
474 udelay(50);
475 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
476 }
477 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
478 aic23->requested_dac = 0;
479 else
480 aic23->requested_adc = 0;
481}
482
483static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
484{
485 struct snd_soc_codec *codec = dai->codec;
486 u16 reg;
487
488 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
489 if (mute)
490 reg |= TLV320AIC23_DACM_MUTE;
491
492 else
493 reg &= ~TLV320AIC23_DACM_MUTE;
494
495 tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);
496
497 return 0;
498}
499
500static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
501 unsigned int fmt)
502{
503 struct snd_soc_codec *codec = codec_dai->codec;
504 u16 iface_reg;
505
506 iface_reg =
507 tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
508
509
510 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
511 case SND_SOC_DAIFMT_CBM_CFM:
512 iface_reg |= TLV320AIC23_MS_MASTER;
513 break;
514 case SND_SOC_DAIFMT_CBS_CFS:
515 break;
516 default:
517 return -EINVAL;
518
519 }
520
521
522 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
523 case SND_SOC_DAIFMT_I2S:
524 iface_reg |= TLV320AIC23_FOR_I2S;
525 break;
526 case SND_SOC_DAIFMT_DSP_A:
527 iface_reg |= TLV320AIC23_LRP_ON;
528 case SND_SOC_DAIFMT_DSP_B:
529 iface_reg |= TLV320AIC23_FOR_DSP;
530 break;
531 case SND_SOC_DAIFMT_RIGHT_J:
532 break;
533 case SND_SOC_DAIFMT_LEFT_J:
534 iface_reg |= TLV320AIC23_FOR_LJUST;
535 break;
536 default:
537 return -EINVAL;
538
539 }
540
541 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
542
543 return 0;
544}
545
546static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
547 int clk_id, unsigned int freq, int dir)
548{
549 struct snd_soc_codec *codec = codec_dai->codec;
550 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
551 aic23->mclk = freq;
552 return 0;
553}
554
555static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
556 enum snd_soc_bias_level level)
557{
558 u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;
559
560 switch (level) {
561 case SND_SOC_BIAS_ON:
562
563 tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
564 break;
565 case SND_SOC_BIAS_PREPARE:
566 break;
567 case SND_SOC_BIAS_STANDBY:
568
569 tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040);
570 break;
571 case SND_SOC_BIAS_OFF:
572
573 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
574 tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
575 break;
576 }
577 codec->bias_level = level;
578 return 0;
579}
580
581#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
582#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
583 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
584
585static struct snd_soc_dai_ops tlv320aic23_dai_ops = {
586 .prepare = tlv320aic23_pcm_prepare,
587 .hw_params = tlv320aic23_hw_params,
588 .shutdown = tlv320aic23_shutdown,
589 .digital_mute = tlv320aic23_mute,
590 .set_fmt = tlv320aic23_set_dai_fmt,
591 .set_sysclk = tlv320aic23_set_dai_sysclk,
592};
593
594struct snd_soc_dai tlv320aic23_dai = {
595 .name = "tlv320aic23",
596 .playback = {
597 .stream_name = "Playback",
598 .channels_min = 2,
599 .channels_max = 2,
600 .rates = AIC23_RATES,
601 .formats = AIC23_FORMATS,},
602 .capture = {
603 .stream_name = "Capture",
604 .channels_min = 2,
605 .channels_max = 2,
606 .rates = AIC23_RATES,
607 .formats = AIC23_FORMATS,},
608 .ops = &tlv320aic23_dai_ops,
609};
610EXPORT_SYMBOL_GPL(tlv320aic23_dai);
611
612static int tlv320aic23_suspend(struct platform_device *pdev,
613 pm_message_t state)
614{
615 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
616 struct snd_soc_codec *codec = socdev->card->codec;
617
618 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
619 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
620
621 return 0;
622}
623
624static int tlv320aic23_resume(struct platform_device *pdev)
625{
626 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
627 struct snd_soc_codec *codec = socdev->card->codec;
628 u16 reg;
629
630
631 for (reg = 0; reg < TLV320AIC23_RESET; reg++) {
632 u16 val = tlv320aic23_read_reg_cache(codec, reg);
633 tlv320aic23_write(codec, reg, val);
634 }
635
636 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
637 tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);
638
639 return 0;
640}
641
642
643
644
645
646static int tlv320aic23_init(struct snd_soc_device *socdev)
647{
648 struct snd_soc_codec *codec = socdev->card->codec;
649 int ret = 0;
650 u16 reg;
651
652 codec->name = "tlv320aic23";
653 codec->owner = THIS_MODULE;
654 codec->read = tlv320aic23_read_reg_cache;
655 codec->write = tlv320aic23_write;
656 codec->set_bias_level = tlv320aic23_set_bias_level;
657 codec->dai = &tlv320aic23_dai;
658 codec->num_dai = 1;
659 codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
660 codec->reg_cache =
661 kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
662 if (codec->reg_cache == NULL)
663 return -ENOMEM;
664
665
666 tlv320aic23_write(codec, TLV320AIC23_RESET, 0);
667
668
669 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
670 if (ret < 0) {
671 printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
672 goto pcm_err;
673 }
674
675
676 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
677
678 tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
679
680
681 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
682 tlv320aic23_write(codec, TLV320AIC23_LINVOL,
683 (reg & (~TLV320AIC23_LIM_MUTED)) |
684 (TLV320AIC23_LRS_ENABLED));
685
686 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
687 tlv320aic23_write(codec, TLV320AIC23_RINVOL,
688 (reg & (~TLV320AIC23_LIM_MUTED)) |
689 TLV320AIC23_LRS_ENABLED);
690
691 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
692 tlv320aic23_write(codec, TLV320AIC23_ANLG,
693 (reg) & (~TLV320AIC23_BYPASS_ON) &
694 (~TLV320AIC23_MICM_MUTED));
695
696
697 tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
698 TLV320AIC23_DEFAULT_OUT_VOL &
699 TLV320AIC23_OUT_VOL_MASK);
700 tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
701 TLV320AIC23_DEFAULT_OUT_VOL &
702 TLV320AIC23_OUT_VOL_MASK);
703
704 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
705
706 snd_soc_add_controls(codec, tlv320aic23_snd_controls,
707 ARRAY_SIZE(tlv320aic23_snd_controls));
708 tlv320aic23_add_widgets(codec);
709 ret = snd_soc_init_card(socdev);
710 if (ret < 0) {
711 printk(KERN_ERR "tlv320aic23: failed to register card\n");
712 goto card_err;
713 }
714
715 return ret;
716
717card_err:
718 snd_soc_free_pcms(socdev);
719 snd_soc_dapm_free(socdev);
720pcm_err:
721 kfree(codec->reg_cache);
722 return ret;
723}
724static struct snd_soc_device *tlv320aic23_socdev;
725
726#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
727
728
729
730
731static int tlv320aic23_codec_probe(struct i2c_client *i2c,
732 const struct i2c_device_id *i2c_id)
733{
734 struct snd_soc_device *socdev = tlv320aic23_socdev;
735 struct snd_soc_codec *codec = socdev->card->codec;
736 int ret;
737
738 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
739 return -EINVAL;
740
741 i2c_set_clientdata(i2c, codec);
742 codec->control_data = i2c;
743
744 ret = tlv320aic23_init(socdev);
745 if (ret < 0) {
746 printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
747 goto err;
748 }
749 return ret;
750
751err:
752 kfree(codec);
753 kfree(i2c);
754 return ret;
755}
756static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
757{
758 put_device(&i2c->dev);
759 return 0;
760}
761
762static const struct i2c_device_id tlv320aic23_id[] = {
763 {"tlv320aic23", 0},
764 {}
765};
766
767MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
768
769static struct i2c_driver tlv320aic23_i2c_driver = {
770 .driver = {
771 .name = "tlv320aic23",
772 },
773 .probe = tlv320aic23_codec_probe,
774 .remove = __exit_p(tlv320aic23_i2c_remove),
775 .id_table = tlv320aic23_id,
776};
777
778#endif
779
780static int tlv320aic23_probe(struct platform_device *pdev)
781{
782 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
783 struct snd_soc_codec *codec;
784 struct aic23 *aic23;
785 int ret = 0;
786
787 printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);
788
789 aic23 = kzalloc(sizeof(struct aic23), GFP_KERNEL);
790 if (aic23 == NULL)
791 return -ENOMEM;
792 codec = &aic23->codec;
793 socdev->card->codec = codec;
794 mutex_init(&codec->mutex);
795 INIT_LIST_HEAD(&codec->dapm_widgets);
796 INIT_LIST_HEAD(&codec->dapm_paths);
797
798 tlv320aic23_socdev = socdev;
799#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
800 codec->hw_write = (hw_write_t) i2c_master_send;
801 codec->hw_read = NULL;
802 ret = i2c_add_driver(&tlv320aic23_i2c_driver);
803 if (ret != 0)
804 printk(KERN_ERR "can't add i2c driver");
805#endif
806 return ret;
807}
808
809static int tlv320aic23_remove(struct platform_device *pdev)
810{
811 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
812 struct snd_soc_codec *codec = socdev->card->codec;
813 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
814
815 if (codec->control_data)
816 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
817
818 snd_soc_free_pcms(socdev);
819 snd_soc_dapm_free(socdev);
820#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
821 i2c_del_driver(&tlv320aic23_i2c_driver);
822#endif
823 kfree(codec->reg_cache);
824 kfree(aic23);
825
826 return 0;
827}
828struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
829 .probe = tlv320aic23_probe,
830 .remove = tlv320aic23_remove,
831 .suspend = tlv320aic23_suspend,
832 .resume = tlv320aic23_resume,
833};
834EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);
835
836static int __init tlv320aic23_modinit(void)
837{
838 return snd_soc_register_dai(&tlv320aic23_dai);
839}
840module_init(tlv320aic23_modinit);
841
842static void __exit tlv320aic23_exit(void)
843{
844 snd_soc_unregister_dai(&tlv320aic23_dai);
845}
846module_exit(tlv320aic23_exit);
847
848MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
849MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
850MODULE_LICENSE("GPL");
851
