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/*
* Speyside audio support
*
* Copyright 2011 Wolfson Microelectronics
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include "../codecs/wm8996.h"
#include "../codecs/wm9081.h"
#define WM8996_HPSEL_GPIO 214
#define MCLK_AUDIO_RATE (512 * 48000)
static int speyside_set_bias_level(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai;
int ret;
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_STANDBY:
ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
32768, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
0, 0, 0);
if (ret < 0) {
pr_err("Failed to stop FLL\n");
return ret;
}
break;
default:
break;
}
return 0;
}
static int speyside_set_bias_level_post(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_dai *codec_dai = card->rtd[1].codec_dai;
int ret;
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
ret = snd_soc_dai_set_pll(codec_dai, 0,
WM8996_FLL_MCLK2,
32768, MCLK_AUDIO_RATE);
if (ret < 0) {
pr_err("Failed to start FLL\n");
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai,
WM8996_SYSCLK_FLL,
MCLK_AUDIO_RATE,
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
}
break;
default:
break;
}
card->dapm.bias_level = level;
return 0;
}
static struct snd_soc_jack speyside_headset;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin speyside_headset_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
/* Default the headphone selection to active high */
static int speyside_jack_polarity;
static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
return 1;
if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
return 1;
return 0;
}
static void speyside_set_polarity(struct snd_soc_codec *codec,
int polarity)
{
speyside_jack_polarity = !polarity;
gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
/* Re-run DAPM to make sure we're using the correct mic bias */
snd_soc_dapm_sync(&codec->dapm);
}
static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
if (ret < 0)
return ret;
return 0;
}
static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = rtd->codec_dai;
struct snd_soc_codec *codec = rtd->codec;
int ret;
ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
if (ret < 0)
return ret;
ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
if (ret != 0)
pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
ret = snd_soc_jack_new(codec, "Headset",
SND_JACK_LINEOUT | SND_JACK_HEADSET |
SND_JACK_BTN_0,
&speyside_headset);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&speyside_headset,
ARRAY_SIZE(speyside_headset_pins),
speyside_headset_pins);
if (ret)
return ret;
wm8996_detect(codec, &speyside_headset, speyside_set_polarity);
return 0;
}
static int speyside_late_probe(struct snd_soc_card *card)
{
snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
return 0;
}
static const struct snd_soc_pcm_stream dsp_codec_params = {
.formats = SNDRV_PCM_FMTBIT_S32_LE,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
};
static struct snd_soc_dai_link speyside_dai[] = {
{
.name = "CPU-DSP",
.stream_name = "CPU-DSP",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm0010-sdi1",
.platform_name = "samsung-audio",
.codec_name = "spi0.0",
.init = speyside_wm0010_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
},
{
.name = "DSP-CODEC",
.stream_name = "DSP-CODEC",
.cpu_dai_name = "wm0010-sdi2",
.codec_dai_name = "wm8996-aif1",
.codec_name = "wm8996.1-001a",
.init = speyside_wm8996_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.params = &dsp_codec_params,
.ignore_suspend = 1,
},
{
.name = "Baseband",
.stream_name = "Baseband",
.cpu_dai_name = "wm8996-aif2",
.codec_dai_name = "wm1250-ev1",
.codec_name = "wm1250-ev1.1-0027",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.ignore_suspend = 1,
},
};
static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
{
/* At any time the WM9081 is active it will have this clock */
return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 0,
MCLK_AUDIO_RATE, 0);
}
static struct snd_soc_aux_dev speyside_aux_dev[] = {
{
.name = "wm9081",
.codec_name = "wm9081.1-006c",
.init = speyside_wm9081_init,
},
};
static struct snd_soc_codec_conf speyside_codec_conf[] = {
{
.dev_name = "wm9081.1-006c",
.name_prefix = "Sub",
},
};
static const struct snd_kcontrol_new controls[] = {
SOC_DAPM_PIN_SWITCH("Main Speaker"),
SOC_DAPM_PIN_SWITCH("Main DMIC"),
SOC_DAPM_PIN_SWITCH("Main AMIC"),
SOC_DAPM_PIN_SWITCH("WM1250 Input"),
SOC_DAPM_PIN_SWITCH("WM1250 Output"),
SOC_DAPM_PIN_SWITCH("Headphone"),
};
static struct snd_soc_dapm_widget widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Main Speaker", NULL),
SND_SOC_DAPM_MIC("Main AMIC", NULL),
SND_SOC_DAPM_MIC("Main DMIC", NULL),
};
static struct snd_soc_dapm_route audio_paths[] = {
{ "IN1RN", NULL, "MICB1" },
{ "IN1RP", NULL, "MICB1" },
{ "IN1RN", NULL, "MICB2" },
{ "IN1RP", NULL, "MICB2" },
{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },
{ "IN1LP", NULL, "MICB2" },
{ "IN1RN", NULL,<
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