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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%d\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%d\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 int tlv320aic23_add_controls(struct snd_soc_codec *codec)
188{
189
190 int err, i;
191
192 for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) {
193 err = snd_ctl_add(codec->card,
194 snd_soc_cnew(&tlv320aic23_snd_controls[i],
195 codec, NULL));
196 if (err < 0)
197 return err;
198 }
199
200 return 0;
201
202}
203
204
205static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
206 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
207 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
208 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
209};
210
211static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
212 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
213 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
214 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
215 &tlv320aic23_rec_src_mux_controls),
216 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
217 &tlv320aic23_output_mixer_controls[0],
218 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
219 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
220 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
221
222 SND_SOC_DAPM_OUTPUT("LHPOUT"),
223 SND_SOC_DAPM_OUTPUT("RHPOUT"),
224 SND_SOC_DAPM_OUTPUT("LOUT"),
225 SND_SOC_DAPM_OUTPUT("ROUT"),
226
227 SND_SOC_DAPM_INPUT("LLINEIN"),
228 SND_SOC_DAPM_INPUT("RLINEIN"),
229
230 SND_SOC_DAPM_INPUT("MICIN"),
231};
232
233static const struct snd_soc_dapm_route intercon[] = {
234
235 {"Output Mixer", "Line Bypass Switch", "Line Input"},
236 {"Output Mixer", "Playback Switch", "DAC"},
237 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
238
239
240 {"RHPOUT", NULL, "Output Mixer"},
241 {"LHPOUT", NULL, "Output Mixer"},
242 {"LOUT", NULL, "Output Mixer"},
243 {"ROUT", NULL, "Output Mixer"},
244
245
246 {"Line Input", "NULL", "LLINEIN"},
247 {"Line Input", "NULL", "RLINEIN"},
248
249 {"Mic Input", "NULL", "MICIN"},
250
251
252 {"Capture Source", "Line", "Line Input"},
253 {"Capture Source", "Mic", "Mic Input"},
254 {"ADC", NULL, "Capture Source"},
255
256};
257
258
259struct aic23 {
260 struct snd_soc_codec codec;
261 int mclk;
262 int requested_adc;
263 int requested_dac;
264};
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279static const int bosr_usb_divisor_table[] = {
280 128, 125, 192, 136
281};
282#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
283#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
284static const unsigned short sr_valid_mask[] = {
285 LOWER_GROUP|UPPER_GROUP,
286 LOWER_GROUP|UPPER_GROUP,
287 LOWER_GROUP,
288 UPPER_GROUP,
289};
290
291
292
293#define SR_MULT (11*12)
294#define A(x) (x) ? (SR_MULT/x) : 0
295static const unsigned char sr_adc_mult_table[] = {
296 A(2), A(2), A(12), A(12), A(0), A(0), A(3), A(1),
297 A(2), A(2), A(11), A(11), A(0), A(0), A(0), A(1)
298};
299static const unsigned char sr_dac_mult_table[] = {
300 A(2), A(12), A(2), A(12), A(0), A(0), A(3), A(1),
301 A(2), A(11), A(2), A(11), A(0), A(0), A(0), A(1)
302};
303
304static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
305 int dac, int dac_l, int dac_h, int need_dac)
306{
307 if ((adc >= adc_l) && (adc <= adc_h) &&
308 (dac >= dac_l) && (dac <= dac_h)) {
309 int diff_adc = need_adc - adc;
310 int diff_dac = need_dac - dac;
311 return abs(diff_adc) + abs(diff_dac);
312 }
313 return UINT_MAX;
314}
315
316static int find_rate(int mclk, u32 need_adc, u32 need_dac)
317{
318 int i, j;
319 int best_i = -1;
320 int best_j = -1;
321 int best_div = 0;
322 unsigned best_score = UINT_MAX;
323 int adc_l, adc_h, dac_l, dac_h;
324
325 need_adc *= SR_MULT;
326 need_dac *= SR_MULT;
327
328
329
330 adc_l = need_adc - (need_adc >> 5);
331 adc_h = need_adc + (need_adc >> 5);
332 dac_l = need_dac - (need_dac >> 5);
333 dac_h = need_dac + (need_dac >> 5);
334 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
335 int base = mclk / bosr_usb_divisor_table[i];
336 int mask = sr_valid_mask[i];
337 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
338 j++, mask >>= 1) {
339 int adc;
340 int dac;
341 int score;
342 if ((mask & 1) == 0)
343 continue;
344 adc = base * sr_adc_mult_table[j];
345 dac = base * sr_dac_mult_table[j];
346 score = get_score(adc, adc_l, adc_h, need_adc,
347 dac, dac_l, dac_h, need_dac);
348 if (best_score > score) {
349 best_score = score;
350 best_i = i;
351 best_j = j;
352 best_div = 0;
353 }
354 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
355 (dac >> 1), dac_l, dac_h, need_dac);
356
357 if ((score != UINT_MAX) && (best_score >= score)) {
358 best_score = score;
359 best_i = i;
360 best_j = j;
361 best_div = 1;
362 }
363 }
364 }
365 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
366}
367
368#ifdef DEBUG
369static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk,
370 u32 *sample_rate_adc, u32 *sample_rate_dac)
371{
372 int src = tlv320aic23_read_reg_cache(codec, TLV320AIC23_SRATE);
373 int sr = (src >> 2) & 0x0f;
374 int val = (mclk / bosr_usb_divisor_table[src & 3]);
375 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
376 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
377 if (src & TLV320AIC23_CLKIN_HALF) {
378 adc >>= 1;
379 dac >>= 1;
380 }
381 *sample_rate_adc = adc;
382 *sample_rate_dac = dac;
383}
384#endif
385
386static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk,
387 u32 sample_rate_adc, u32 sample_rate_dac)
388{
389
390 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
391 if (data < 0) {
392 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
393 __func__, sample_rate_adc, sample_rate_dac);
394 return -EINVAL;
395 }
396 tlv320aic23_write(codec, TLV320AIC23_SRATE, data);
397#ifdef DEBUG
398 {
399 u32 adc, dac;
400 get_current_sample_rates(codec, mclk, &adc, &dac);
401 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
402 adc, dac, data);
403 }
404#endif
405 return 0;
406}
407
408static int tlv320aic23_add_widgets(struct snd_soc_codec *codec)
409{
410 snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
411 ARRAY_SIZE(tlv320aic23_dapm_widgets));
412
413
414 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
415
416 snd_soc_dapm_new_widgets(codec);
417 return 0;
418}
419
420static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
421 struct snd_pcm_hw_params *params,
422 struct snd_soc_dai *dai)
423{
424 struct snd_soc_pcm_runtime *rtd = substream->private_data;
425 struct snd_soc_device *socdev = rtd->socdev;
426 struct snd_soc_codec *codec = socdev->codec;
427 u16 iface_reg;
428 int ret;
429 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
430 u32 sample_rate_adc = aic23->requested_adc;
431 u32 sample_rate_dac = aic23->requested_dac;
432 u32 sample_rate = params_rate(params);
433
434 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
435 aic23->requested_dac = sample_rate_dac = sample_rate;
436 if (!sample_rate_adc)
437 sample_rate_adc = sample_rate;
438 } else {
439 aic23->requested_adc = sample_rate_adc = sample_rate;
440 if (!sample_rate_dac)
441 sample_rate_dac = sample_rate;
442 }
443 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc,
444 sample_rate_dac);
445 if (ret < 0)
446 return ret;
447
448 iface_reg =
449 tlv320aic23_read_reg_cache(codec,
450 TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
451 switch (params_format(params)) {
452 case SNDRV_PCM_FORMAT_S16_LE:
453 break;
454 case SNDRV_PCM_FORMAT_S20_3LE:
455 iface_reg |= (0x01 << 2);
456 break;
457 case SNDRV_PCM_FORMAT_S24_LE:
458 iface_reg |= (0x02 << 2);
459 break;
460 case SNDRV_PCM_FORMAT_S32_LE:
461 iface_reg |= (0x03 << 2);
462 break;
463 }
464 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
465
466 return 0;
467}
468
469static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
470 struct snd_soc_dai *dai)
471{
472 struct snd_soc_pcm_runtime *rtd = substream->private_data;
473 struct snd_soc_device *socdev = rtd->socdev;
474 struct snd_soc_codec *codec = socdev->codec;
475
476
477 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001);
478
479 return 0;
480}
481
482static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
483 struct snd_soc_dai *dai)
484{
485 struct snd_soc_pcm_runtime *rtd = substream->private_data;
486 struct snd_soc_device *socdev = rtd->socdev;
487 struct snd_soc_codec *codec = socdev->codec;
488 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
489
490
491 if (!codec->active) {
492 udelay(50);
493 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
494 }
495 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
496 aic23->requested_dac = 0;
497 else
498 aic23->requested_adc = 0;
499}
500
501static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
502{
503 struct snd_soc_codec *codec = dai->codec;
504 u16 reg;
505
506 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT);
507 if (mute)
508 reg |= TLV320AIC23_DACM_MUTE;
509
510 else
511 reg &= ~TLV320AIC23_DACM_MUTE;
512
513 tlv320aic23_write(codec, TLV320AIC23_DIGT, reg);
514
515 return 0;
516}
517
518static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
519 unsigned int fmt)
520{
521 struct snd_soc_codec *codec = codec_dai->codec;
522 u16 iface_reg;
523
524 iface_reg =
525 tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
526
527
528 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
529 case SND_SOC_DAIFMT_CBM_CFM:
530 iface_reg |= TLV320AIC23_MS_MASTER;
531 break;
532 case SND_SOC_DAIFMT_CBS_CFS:
533 break;
534 default:
535 return -EINVAL;
536
537 }
538
539
540 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
541 case SND_SOC_DAIFMT_I2S:
542 iface_reg |= TLV320AIC23_FOR_I2S;
543 break;
544 case SND_SOC_DAIFMT_DSP_B:
545 iface_reg |= TLV320AIC23_FOR_DSP;
546 break;
547 case SND_SOC_DAIFMT_RIGHT_J:
548 break;
549 case SND_SOC_DAIFMT_LEFT_J:
550 iface_reg |= TLV320AIC23_FOR_LJUST;
551 break;
552 default:
553 return -EINVAL;
554
555 }
556
557 tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
558
559 return 0;
560}
561
562static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
563 int clk_id, unsigned int freq, int dir)
564{
565 struct snd_soc_codec *codec = codec_dai->codec;
566 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
567 aic23->mclk = freq;
568 return 0;
569}
570
571static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
572 enum snd_soc_bias_level level)
573{
574 u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f;
575
576 switch (level) {
577 case SND_SOC_BIAS_ON:
578
579 tlv320aic23_write(codec, TLV320AIC23_PWR, reg);
580 break;
581 case SND_SOC_BIAS_PREPARE:
582 break;
583 case SND_SOC_BIAS_STANDBY:
584
585 tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040);
586 break;
587 case SND_SOC_BIAS_OFF:
588
589 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
590 tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff);
591 break;
592 }
593 codec->bias_level = level;
594 return 0;
595}
596
597#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
598#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
599 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
600
601struct snd_soc_dai tlv320aic23_dai = {
602 .name = "tlv320aic23",
603 .playback = {
604 .stream_name = "Playback",
605 .channels_min = 2,
606 .channels_max = 2,
607 .rates = AIC23_RATES,
608 .formats = AIC23_FORMATS,},
609 .capture = {
610 .stream_name = "Capture",
611 .channels_min = 2,
612 .channels_max = 2,
613 .rates = AIC23_RATES,
614 .formats = AIC23_FORMATS,},
615 .ops = {
616 .prepare = tlv320aic23_pcm_prepare,
617 .hw_params = tlv320aic23_hw_params,
618 .shutdown = tlv320aic23_shutdown,
619 .digital_mute = tlv320aic23_mute,
620 .set_fmt = tlv320aic23_set_dai_fmt,
621 .set_sysclk = tlv320aic23_set_dai_sysclk,
622 }
623};
624EXPORT_SYMBOL_GPL(tlv320aic23_dai);
625
626static int tlv320aic23_suspend(struct platform_device *pdev,
627 pm_message_t state)
628{
629 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
630 struct snd_soc_codec *codec = socdev->codec;
631
632 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0);
633 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
634
635 return 0;
636}
637
638static int tlv320aic23_resume(struct platform_device *pdev)
639{
640 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
641 struct snd_soc_codec *codec = socdev->codec;
642 int i;
643 u16 reg;
644
645
646 for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) {
647 u16 val = tlv320aic23_read_reg_cache(codec, reg);
648 tlv320aic23_write(codec, reg, val);
649 }
650
651 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
652 tlv320aic23_set_bias_level(codec, codec->suspend_bias_level);
653
654 return 0;
655}
656
657
658
659
660
661static int tlv320aic23_init(struct snd_soc_device *socdev)
662{
663 struct snd_soc_codec *codec = socdev->codec;
664 int ret = 0;
665 u16 reg;
666
667 codec->name = "tlv320aic23";
668 codec->owner = THIS_MODULE;
669 codec->read = tlv320aic23_read_reg_cache;
670 codec->write = tlv320aic23_write;
671 codec->set_bias_level = tlv320aic23_set_bias_level;
672 codec->dai = &tlv320aic23_dai;
673 codec->num_dai = 1;
674 codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg);
675 codec->reg_cache =
676 kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL);
677 if (codec->reg_cache == NULL)
678 return -ENOMEM;
679
680
681 tlv320aic23_write(codec, TLV320AIC23_RESET, 0);
682
683
684 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
685 if (ret < 0) {
686 printk(KERN_ERR "tlv320aic23: failed to create pcms\n");
687 goto pcm_err;
688 }
689
690
691 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
692
693 tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
694
695
696 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL);
697 tlv320aic23_write(codec, TLV320AIC23_LINVOL,
698 (reg & (~TLV320AIC23_LIM_MUTED)) |
699 (TLV320AIC23_LRS_ENABLED));
700
701 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL);
702 tlv320aic23_write(codec, TLV320AIC23_RINVOL,
703 (reg & (~TLV320AIC23_LIM_MUTED)) |
704 TLV320AIC23_LRS_ENABLED);
705
706 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG);
707 tlv320aic23_write(codec, TLV320AIC23_ANLG,
708 (reg) & (~TLV320AIC23_BYPASS_ON) &
709 (~TLV320AIC23_MICM_MUTED));
710
711
712 tlv320aic23_write(codec, TLV320AIC23_LCHNVOL,
713 TLV320AIC23_DEFAULT_OUT_VOL &
714 TLV320AIC23_OUT_VOL_MASK);
715 tlv320aic23_write(codec, TLV320AIC23_RCHNVOL,
716 TLV320AIC23_DEFAULT_OUT_VOL &
717 TLV320AIC23_OUT_VOL_MASK);
718
719 tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1);
720
721 tlv320aic23_add_controls(codec);
722 tlv320aic23_add_widgets(codec);
723 ret = snd_soc_init_card(socdev);
724 if (ret < 0) {
725 printk(KERN_ERR "tlv320aic23: failed to register card\n");
726 goto card_err;
727 }
728
729 return ret;
730
731card_err:
732 snd_soc_free_pcms(socdev);
733 snd_soc_dapm_free(socdev);
734pcm_err:
735 kfree(codec->reg_cache);
736 return ret;
737}
738static struct snd_soc_device *tlv320aic23_socdev;
739
740#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
741
742
743
744
745static int tlv320aic23_codec_probe(struct i2c_client *i2c,
746 const struct i2c_device_id *i2c_id)
747{
748 struct snd_soc_device *socdev = tlv320aic23_socdev;
749 struct snd_soc_codec *codec = socdev->codec;
750 int ret;
751
752 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
753 return -EINVAL;
754
755 i2c_set_clientdata(i2c, codec);
756 codec->control_data = i2c;
757
758 ret = tlv320aic23_init(socdev);
759 if (ret < 0) {
760 printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n");
761 goto err;
762 }
763 return ret;
764
765err:
766 kfree(codec);
767 kfree(i2c);
768 return ret;
769}
770static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
771{
772 put_device(&i2c->dev);
773 return 0;
774}
775
776static const struct i2c_device_id tlv320aic23_id[] = {
777 {"tlv320aic23", 0},
778 {}
779};
780
781MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
782
783static struct i2c_driver tlv320aic23_i2c_driver = {
784 .driver = {
785 .name = "tlv320aic23",
786 },
787 .probe = tlv320aic23_codec_probe,
788 .remove = __exit_p(tlv320aic23_i2c_remove),
789 .id_table = tlv320aic23_id,
790};
791
792#endif
793
794static int tlv320aic23_probe(struct platform_device *pdev)
795{
796 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
797 struct snd_soc_codec *codec;
798 struct aic23 *aic23;
799 int ret = 0;
800
801 printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION);
802
803 aic23 = kzalloc(sizeof(struct aic23), GFP_KERNEL);
804 if (aic23 == NULL)
805 return -ENOMEM;
806 codec = &aic23->codec;
807 socdev->codec = codec;
808 mutex_init(&codec->mutex);
809 INIT_LIST_HEAD(&codec->dapm_widgets);
810 INIT_LIST_HEAD(&codec->dapm_paths);
811
812 tlv320aic23_socdev = socdev;
813#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
814 codec->hw_write = (hw_write_t) i2c_master_send;
815 codec->hw_read = NULL;
816 ret = i2c_add_driver(&tlv320aic23_i2c_driver);
817 if (ret != 0)
818 printk(KERN_ERR "can't add i2c driver");
819#endif
820 return ret;
821}
822
823static int tlv320aic23_remove(struct platform_device *pdev)
824{
825 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
826 struct snd_soc_codec *codec = socdev->codec;
827 struct aic23 *aic23 = container_of(codec, struct aic23, codec);
828
829 if (codec->control_data)
830 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
831
832 snd_soc_free_pcms(socdev);
833 snd_soc_dapm_free(socdev);
834#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
835 i2c_del_driver(&tlv320aic23_i2c_driver);
836#endif
837 kfree(codec->reg_cache);
838 kfree(aic23);
839
840 return 0;
841}
842struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = {
843 .probe = tlv320aic23_probe,
844 .remove = tlv320aic23_remove,
845 .suspend = tlv320aic23_suspend,
846 .resume = tlv320aic23_resume,
847};
848EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23);
849
850static int __init tlv320aic23_modinit(void)
851{
852 return snd_soc_register_dai(&tlv320aic23_dai);
853}
854module_init(tlv320aic23_modinit);
855
856static void __exit tlv320aic23_exit(void)
857{
858 snd_soc_unregister_dai(&tlv320aic23_dai);
859}
860module_exit(tlv320aic23_exit);
861
862MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
863MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
864MODULE_LICENSE("GPL");
865
