2 * ALSA SoC TLV320AIC23 codec driver
4 * Author: Arun KS, <arunks@mistralsolutions.com>
5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
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.
14 * The AIC23 is a driver for a low power stereo audio
17 * The machine layer should disable unsupported inputs/outputs by
18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/init.h>
24 #include <linux/delay.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>
36 #include "tlv320aic23.h"
38 #define AIC23_VERSION "0.1"
41 * AIC23 register cache
43 static 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 */
51 * read tlv320aic23 register cache
53 static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec
54 *codec
, unsigned int reg
)
56 u16
*cache
= codec
->reg_cache
;
57 if (reg
>= ARRAY_SIZE(tlv320aic23_reg
))
63 * write tlv320aic23 register cache
65 static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec
*codec
,
68 u16
*cache
= codec
->reg_cache
;
69 if (reg
>= ARRAY_SIZE(tlv320aic23_reg
))
75 * write to the tlv320aic23 register space
77 static int tlv320aic23_write(struct snd_soc_codec
*codec
, unsigned int reg
,
83 /* TLV320AIC23 has 7 bit address and 9 bits of data
84 * so we need to switch one data bit into reg and rest
88 if ((reg
< 0 || reg
> 9) && (reg
!= 15)) {
89 printk(KERN_WARNING
"%s Invalid register R%u\n", __func__
, reg
);
93 data
[0] = (reg
<< 1) | (value
>> 8 & 0x01);
94 data
[1] = value
& 0xff;
96 tlv320aic23_write_reg_cache(codec
, reg
, value
);
98 if (codec
->hw_write(codec
->control_data
, data
, 2) == 2)
101 printk(KERN_ERR
"%s cannot write %03x to register R%u\n", __func__
,
107 static const char *rec_src_text
[] = { "Line", "Mic" };
108 static const char *deemph_text
[] = {"None", "32Khz", "44.1Khz", "48Khz"};
110 static const struct soc_enum rec_src_enum
=
111 SOC_ENUM_SINGLE(TLV320AIC23_ANLG
, 2, 2, rec_src_text
);
113 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls
=
114 SOC_DAPM_ENUM("Input Select", rec_src_enum
);
116 static const struct soc_enum tlv320aic23_rec_src
=
117 SOC_ENUM_SINGLE(TLV320AIC23_ANLG
, 2, 2, rec_src_text
);
118 static const struct soc_enum tlv320aic23_deemph
=
119 SOC_ENUM_SINGLE(TLV320AIC23_DIGT
, 1, 4, deemph_text
);
121 static const DECLARE_TLV_DB_SCALE(out_gain_tlv
, -12100, 100, 0);
122 static const DECLARE_TLV_DB_SCALE(input_gain_tlv
, -1725, 75, 0);
123 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv
, -1800, 300, 0);
125 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol
*kcontrol
,
126 struct snd_ctl_elem_value
*ucontrol
)
128 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
131 val
= (ucontrol
->value
.integer
.value
[0] & 0x07);
133 /* linear conversion to userspace
140 val
= (val
>= 4) ? 4 : (3 - val
);
142 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_ANLG
) & (~0x1C0);
143 tlv320aic23_write(codec
, TLV320AIC23_ANLG
, reg
| (val
<< 6));
148 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol
*kcontrol
,
149 struct snd_ctl_elem_value
*ucontrol
)
151 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
154 val
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_ANLG
) & (0x1C0);
156 val
= (val
>= 4) ? 4 : (3 - val
);
157 ucontrol
->value
.integer
.value
[0] = val
;
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) }
171 static 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
),
186 /* PGA Mixer controls for Line and Mic switch */
187 static 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),
193 static 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),
204 SND_SOC_DAPM_OUTPUT("LHPOUT"),
205 SND_SOC_DAPM_OUTPUT("RHPOUT"),
206 SND_SOC_DAPM_OUTPUT("LOUT"),
207 SND_SOC_DAPM_OUTPUT("ROUT"),
209 SND_SOC_DAPM_INPUT("LLINEIN"),
210 SND_SOC_DAPM_INPUT("RLINEIN"),
212 SND_SOC_DAPM_INPUT("MICIN"),
215 static const struct snd_soc_dapm_route intercon
[] = {
217 {"Output Mixer", "Line Bypass Switch", "Line Input"},
218 {"Output Mixer", "Playback Switch", "DAC"},
219 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
222 {"RHPOUT", NULL
, "Output Mixer"},
223 {"LHPOUT", NULL
, "Output Mixer"},
224 {"LOUT", NULL
, "Output Mixer"},
225 {"ROUT", NULL
, "Output Mixer"},
228 {"Line Input", "NULL", "LLINEIN"},
229 {"Line Input", "NULL", "RLINEIN"},
231 {"Mic Input", "NULL", "MICIN"},
234 {"Capture Source", "Line", "Line Input"},
235 {"Capture Source", "Mic", "Mic Input"},
236 {"ADC", NULL
, "Capture Source"},
240 /* AIC23 driver data */
242 struct snd_soc_codec codec
;
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
258 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
259 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
261 static const int bosr_usb_divisor_table
[] = {
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))
266 static const unsigned short sr_valid_mask
[] = {
267 LOWER_GROUP
|UPPER_GROUP
, /* Normal, bosr - 0*/
268 LOWER_GROUP
, /* Usb, bosr - 0*/
269 LOWER_GROUP
|UPPER_GROUP
, /* Normal, bosr - 1*/
270 UPPER_GROUP
, /* Usb, bosr - 1*/
273 * Every divisor is a factor of 11*12
275 #define SR_MULT (11*12)
276 #define A(x) (SR_MULT/x)
277 static 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)
281 static 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)
286 static 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
)
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
);
298 static int find_rate(int mclk
, u32 need_adc
, u32 need_dac
)
304 unsigned best_score
= UINT_MAX
;
305 int adc_l
, adc_h
, dac_l
, dac_h
;
310 * rates given are +/- 1/32
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
);
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
) {
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
)) {
347 return (best_j
<< 2) | best_i
| (best_div
<< TLV320AIC23_CLKIN_SHIFT
);
351 static void get_current_sample_rates(struct snd_soc_codec
*codec
, int mclk
,
352 u32
*sample_rate_adc
, u32
*sample_rate_dac
)
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
) {
363 *sample_rate_adc
= adc
;
364 *sample_rate_dac
= dac
;
368 static int set_sample_rate_control(struct snd_soc_codec
*codec
, int mclk
,
369 u32 sample_rate_adc
, u32 sample_rate_dac
)
371 /* Search for the right sample rate */
372 int data
= find_rate(mclk
, sample_rate_adc
, sample_rate_dac
);
374 printk(KERN_ERR
"%s:Invalid rate %u,%u requested\n",
375 __func__
, sample_rate_adc
, sample_rate_dac
);
378 tlv320aic23_write(codec
, TLV320AIC23_SRATE
, data
);
382 get_current_sample_rates(codec
, mclk
, &adc
, &dac
);
383 printk(KERN_DEBUG
"actual samplerate = %u,%u reg=%x\n",
390 static int tlv320aic23_add_widgets(struct snd_soc_codec
*codec
)
392 snd_soc_dapm_new_controls(codec
, tlv320aic23_dapm_widgets
,
393 ARRAY_SIZE(tlv320aic23_dapm_widgets
));
395 /* set up audio path interconnects */
396 snd_soc_dapm_add_routes(codec
, intercon
, ARRAY_SIZE(intercon
));
398 snd_soc_dapm_new_widgets(codec
);
402 static int tlv320aic23_hw_params(struct snd_pcm_substream
*substream
,
403 struct snd_pcm_hw_params
*params
,
404 struct snd_soc_dai
*dai
)
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
;
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
);
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
;
421 aic23
->requested_adc
= sample_rate_adc
= sample_rate
;
422 if (!sample_rate_dac
)
423 sample_rate_dac
= sample_rate
;
425 ret
= set_sample_rate_control(codec
, aic23
->mclk
, sample_rate_adc
,
431 tlv320aic23_read_reg_cache(codec
,
432 TLV320AIC23_DIGT_FMT
) & ~(0x03 << 2);
433 switch (params_format(params
)) {
434 case SNDRV_PCM_FORMAT_S16_LE
:
436 case SNDRV_PCM_FORMAT_S20_3LE
:
437 iface_reg
|= (0x01 << 2);
439 case SNDRV_PCM_FORMAT_S24_LE
:
440 iface_reg
|= (0x02 << 2);
442 case SNDRV_PCM_FORMAT_S32_LE
:
443 iface_reg
|= (0x03 << 2);
446 tlv320aic23_write(codec
, TLV320AIC23_DIGT_FMT
, iface_reg
);
451 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream
*substream
,
452 struct snd_soc_dai
*dai
)
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
;
459 tlv320aic23_write(codec
, TLV320AIC23_ACTIVE
, 0x0001);
464 static void tlv320aic23_shutdown(struct snd_pcm_substream
*substream
,
465 struct snd_soc_dai
*dai
)
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
);
473 if (!codec
->active
) {
475 tlv320aic23_write(codec
, TLV320AIC23_ACTIVE
, 0x0);
477 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
478 aic23
->requested_dac
= 0;
480 aic23
->requested_adc
= 0;
483 static int tlv320aic23_mute(struct snd_soc_dai
*dai
, int mute
)
485 struct snd_soc_codec
*codec
= dai
->codec
;
488 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_DIGT
);
490 reg
|= TLV320AIC23_DACM_MUTE
;
493 reg
&= ~TLV320AIC23_DACM_MUTE
;
495 tlv320aic23_write(codec
, TLV320AIC23_DIGT
, reg
);
500 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
503 struct snd_soc_codec
*codec
= codec_dai
->codec
;
507 tlv320aic23_read_reg_cache(codec
, TLV320AIC23_DIGT_FMT
) & (~0x03);
509 /* set master/slave audio interface */
510 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
511 case SND_SOC_DAIFMT_CBM_CFM
:
512 iface_reg
|= TLV320AIC23_MS_MASTER
;
514 case SND_SOC_DAIFMT_CBS_CFS
:
521 /* interface format */
522 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
523 case SND_SOC_DAIFMT_I2S
:
524 iface_reg
|= TLV320AIC23_FOR_I2S
;
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
;
531 case SND_SOC_DAIFMT_RIGHT_J
:
533 case SND_SOC_DAIFMT_LEFT_J
:
534 iface_reg
|= TLV320AIC23_FOR_LJUST
;
541 tlv320aic23_write(codec
, TLV320AIC23_DIGT_FMT
, iface_reg
);
546 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
547 int clk_id
, unsigned int freq
, int dir
)
549 struct snd_soc_codec
*codec
= codec_dai
->codec
;
550 struct aic23
*aic23
= container_of(codec
, struct aic23
, codec
);
555 static int tlv320aic23_set_bias_level(struct snd_soc_codec
*codec
,
556 enum snd_soc_bias_level level
)
558 u16 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_PWR
) & 0xff7f;
561 case SND_SOC_BIAS_ON
:
562 /* vref/mid, osc on, dac unmute */
563 tlv320aic23_write(codec
, TLV320AIC23_PWR
, reg
);
565 case SND_SOC_BIAS_PREPARE
:
567 case SND_SOC_BIAS_STANDBY
:
568 /* Activate the digital interface */
569 tlv320aic23_write(codec
, TLV320AIC23_ACTIVE
, 0x1);
571 case SND_SOC_BIAS_OFF
:
572 /* Deactivate the digital interface */
573 tlv320aic23_write(codec
, TLV320AIC23_ACTIVE
, 0x0);
576 codec
->bias_level
= level
;
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)
584 static 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
,
593 struct snd_soc_dai tlv320aic23_dai
= {
594 .name
= "tlv320aic23",
596 .stream_name
= "Playback",
599 .rates
= AIC23_RATES
,
600 .formats
= AIC23_FORMATS
,},
602 .stream_name
= "Capture",
605 .rates
= AIC23_RATES
,
606 .formats
= AIC23_FORMATS
,},
607 .ops
= &tlv320aic23_dai_ops
,
609 EXPORT_SYMBOL_GPL(tlv320aic23_dai
);
611 static int tlv320aic23_suspend(struct platform_device
*pdev
,
614 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
615 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
617 tlv320aic23_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
622 static int tlv320aic23_resume(struct platform_device
*pdev
)
624 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
625 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
628 /* Sync reg_cache with the hardware */
629 for (reg
= 0; reg
<= TLV320AIC23_ACTIVE
; reg
++) {
630 u16 val
= tlv320aic23_read_reg_cache(codec
, reg
);
631 tlv320aic23_write(codec
, reg
, val
);
634 tlv320aic23_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
635 tlv320aic23_set_bias_level(codec
, codec
->suspend_bias_level
);
641 * initialise the AIC23 driver
642 * register the mixer and dsp interfaces with the kernel
644 static int tlv320aic23_init(struct snd_soc_device
*socdev
)
646 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
650 codec
->name
= "tlv320aic23";
651 codec
->owner
= THIS_MODULE
;
652 codec
->read
= tlv320aic23_read_reg_cache
;
653 codec
->write
= tlv320aic23_write
;
654 codec
->set_bias_level
= tlv320aic23_set_bias_level
;
655 codec
->dai
= &tlv320aic23_dai
;
657 codec
->reg_cache_size
= ARRAY_SIZE(tlv320aic23_reg
);
659 kmemdup(tlv320aic23_reg
, sizeof(tlv320aic23_reg
), GFP_KERNEL
);
660 if (codec
->reg_cache
== NULL
)
664 tlv320aic23_write(codec
, TLV320AIC23_RESET
, 0);
667 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
669 printk(KERN_ERR
"tlv320aic23: failed to create pcms\n");
673 /* power on device */
674 tlv320aic23_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
676 tlv320aic23_write(codec
, TLV320AIC23_DIGT
, TLV320AIC23_DEEMP_44K
);
679 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_LINVOL
);
680 tlv320aic23_write(codec
, TLV320AIC23_LINVOL
,
681 (reg
& (~TLV320AIC23_LIM_MUTED
)) |
682 (TLV320AIC23_LRS_ENABLED
));
684 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_RINVOL
);
685 tlv320aic23_write(codec
, TLV320AIC23_RINVOL
,
686 (reg
& (~TLV320AIC23_LIM_MUTED
)) |
687 TLV320AIC23_LRS_ENABLED
);
689 reg
= tlv320aic23_read_reg_cache(codec
, TLV320AIC23_ANLG
);
690 tlv320aic23_write(codec
, TLV320AIC23_ANLG
,
691 (reg
) & (~TLV320AIC23_BYPASS_ON
) &
692 (~TLV320AIC23_MICM_MUTED
));
694 /* Default output volume */
695 tlv320aic23_write(codec
, TLV320AIC23_LCHNVOL
,
696 TLV320AIC23_DEFAULT_OUT_VOL
&
697 TLV320AIC23_OUT_VOL_MASK
);
698 tlv320aic23_write(codec
, TLV320AIC23_RCHNVOL
,
699 TLV320AIC23_DEFAULT_OUT_VOL
&
700 TLV320AIC23_OUT_VOL_MASK
);
702 tlv320aic23_write(codec
, TLV320AIC23_ACTIVE
, 0x1);
704 snd_soc_add_controls(codec
, tlv320aic23_snd_controls
,
705 ARRAY_SIZE(tlv320aic23_snd_controls
));
706 tlv320aic23_add_widgets(codec
);
707 ret
= snd_soc_init_card(socdev
);
709 printk(KERN_ERR
"tlv320aic23: failed to register card\n");
716 snd_soc_free_pcms(socdev
);
717 snd_soc_dapm_free(socdev
);
719 kfree(codec
->reg_cache
);
722 static struct snd_soc_device
*tlv320aic23_socdev
;
724 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
726 * If the i2c layer weren't so broken, we could pass this kind of data
729 static int tlv320aic23_codec_probe(struct i2c_client
*i2c
,
730 const struct i2c_device_id
*i2c_id
)
732 struct snd_soc_device
*socdev
= tlv320aic23_socdev
;
733 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
736 if (!i2c_check_functionality(i2c
->adapter
, I2C_FUNC_SMBUS_BYTE_DATA
))
739 i2c_set_clientdata(i2c
, codec
);
740 codec
->control_data
= i2c
;
742 ret
= tlv320aic23_init(socdev
);
744 printk(KERN_ERR
"tlv320aic23: failed to initialise AIC23\n");
754 static int __exit
tlv320aic23_i2c_remove(struct i2c_client
*i2c
)
756 put_device(&i2c
->dev
);
760 static const struct i2c_device_id tlv320aic23_id
[] = {
765 MODULE_DEVICE_TABLE(i2c
, tlv320aic23_id
);
767 static struct i2c_driver tlv320aic23_i2c_driver
= {
769 .name
= "tlv320aic23",
771 .probe
= tlv320aic23_codec_probe
,
772 .remove
= __exit_p(tlv320aic23_i2c_remove
),
773 .id_table
= tlv320aic23_id
,
778 static int tlv320aic23_probe(struct platform_device
*pdev
)
780 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
781 struct snd_soc_codec
*codec
;
785 printk(KERN_INFO
"AIC23 Audio Codec %s\n", AIC23_VERSION
);
787 aic23
= kzalloc(sizeof(struct aic23
), GFP_KERNEL
);
790 codec
= &aic23
->codec
;
791 socdev
->card
->codec
= codec
;
792 mutex_init(&codec
->mutex
);
793 INIT_LIST_HEAD(&codec
->dapm_widgets
);
794 INIT_LIST_HEAD(&codec
->dapm_paths
);
796 tlv320aic23_socdev
= socdev
;
797 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
798 codec
->hw_write
= (hw_write_t
) i2c_master_send
;
799 codec
->hw_read
= NULL
;
800 ret
= i2c_add_driver(&tlv320aic23_i2c_driver
);
802 printk(KERN_ERR
"can't add i2c driver");
807 static int tlv320aic23_remove(struct platform_device
*pdev
)
809 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
810 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
811 struct aic23
*aic23
= container_of(codec
, struct aic23
, codec
);
813 if (codec
->control_data
)
814 tlv320aic23_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
816 snd_soc_free_pcms(socdev
);
817 snd_soc_dapm_free(socdev
);
818 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
819 i2c_del_driver(&tlv320aic23_i2c_driver
);
821 kfree(codec
->reg_cache
);
826 struct snd_soc_codec_device soc_codec_dev_tlv320aic23
= {
827 .probe
= tlv320aic23_probe
,
828 .remove
= tlv320aic23_remove
,
829 .suspend
= tlv320aic23_suspend
,
830 .resume
= tlv320aic23_resume
,
832 EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23
);
834 static int __init
tlv320aic23_modinit(void)
836 return snd_soc_register_dai(&tlv320aic23_dai
);
838 module_init(tlv320aic23_modinit
);
840 static void __exit
tlv320aic23_exit(void)
842 snd_soc_unregister_dai(&tlv320aic23_dai
);
844 module_exit(tlv320aic23_exit
);
846 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
847 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
848 MODULE_LICENSE("GPL");