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kernel-ark/sound/soc/samsung/goni_wm8994.c
Padmavathi Venna a08485d8fd ASoC: Samsung: Do not register samsung audio dma device as pdev 
Previously, the ASoC 'platform' (PCM/DMA) object was instantiated via a
platform_device. This didn't represent the hardware well, since there
was no separate hardware associated with this platform_device; it was a
virtual device with sole purpose to call snd_soc_register_platform().

This change removes the platform_device completely. Each Samsung DAI now
registers the ASoC 'platform' itself. Machine drivers are adjusted for
the new 'platform' name.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-07 19:36:07 +09:00

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/*
* goni_wm8994.c
*
* Copyright (C) 2010 Samsung Electronics Co.Ltd
* Author: Chanwoo Choi <cw00.choi@samsung.com>
*
* 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 <linux/module.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <asm/mach-types.h>
#include <mach/gpio.h>
#include "../codecs/wm8994.h"
#define MACHINE_NAME 0
#define CPU_VOICE_DAI 1
static const char *aquila_str[] = {
[MACHINE_NAME] = "aquila",
[CPU_VOICE_DAI] = "aquila-voice-dai",
};
static struct snd_soc_card goni;
static struct platform_device *goni_snd_device;
/* 3.5 pie jack */
static struct snd_soc_jack jack;
/* 3.5 pie jack detection DAPM pins */
static struct snd_soc_jack_pin jack_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
}, {
.pin = "Headset Stereophone",
.mask = SND_JACK_HEADPHONE | SND_JACK_MECHANICAL |
SND_JACK_AVOUT,
},
};
/* 3.5 pie jack detection gpios */
static struct snd_soc_jack_gpio jack_gpios[] = {
{
.gpio = S5PV210_GPH0(6),
.name = "DET_3.5",
.report = SND_JACK_HEADSET | SND_JACK_MECHANICAL |
SND_JACK_AVOUT,
.debounce_time = 200,
},
};
static const struct snd_soc_dapm_widget goni_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Ext Left Spk", NULL),
SND_SOC_DAPM_SPK("Ext Right Spk", NULL),
SND_SOC_DAPM_SPK("Ext Rcv", NULL),
SND_SOC_DAPM_HP("Headset Stereophone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Main Mic", NULL),
SND_SOC_DAPM_MIC("2nd Mic", NULL),
SND_SOC_DAPM_LINE("Radio In", NULL),
};
static const struct snd_soc_dapm_route goni_dapm_routes[] = {
{"Ext Left Spk", NULL, "SPKOUTLP"},
{"Ext Left Spk", NULL, "SPKOUTLN"},
{"Ext Right Spk", NULL, "SPKOUTRP"},
{"Ext Right Spk", NULL, "SPKOUTRN"},
{"Ext Rcv", NULL, "HPOUT2N"},
{"Ext Rcv", NULL, "HPOUT2P"},
{"Headset Stereophone", NULL, "HPOUT1L"},
{"Headset Stereophone", NULL, "HPOUT1R"},
{"IN1RN", NULL, "Headset Mic"},
{"IN1RP", NULL, "Headset Mic"},
{"IN1RN", NULL, "2nd Mic"},
{"IN1RP", NULL, "2nd Mic"},
{"IN1LN", NULL, "Main Mic"},
{"IN1LP", NULL, "Main Mic"},
{"IN2LN", NULL, "Radio In"},
{"IN2RN", NULL, "Radio In"},
};
static int goni_wm8994_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
int ret;
/* set endpoints to not connected */
snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
if (machine_is_aquila()) {
snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
}
/* Headset jack detection */
ret = snd_soc_jack_new(codec, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_MECHANICAL | SND_JACK_AVOUT,
&jack);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&jack, ARRAY_SIZE(jack_pins), jack_pins);
if (ret)
return ret;
ret = snd_soc_jack_add_gpios(&jack, ARRAY_SIZE(jack_gpios), jack_gpios);
if (ret)
return ret;
return 0;
}
static int goni_hifi_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned int pll_out = 24000000;
int ret = 0;
/* set the cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
/* set the codec FLL */
ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, 0, pll_out,
params_rate(params) * 256);
if (ret < 0)
return ret;
/* set the codec system clock */
ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
params_rate(params) * 256, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
static struct snd_soc_ops goni_hifi_ops = {
.hw_params = goni_hifi_hw_params,
};
static int goni_voice_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
unsigned int pll_out = 24000000;
int ret = 0;
if (params_rate(params) != 8000)
return -EINVAL;
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
/* set the codec FLL */
ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL2, 0, pll_out,
params_rate(params) * 256);
if (ret < 0)
return ret;
/* set the codec system clock */
ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL2,
params_rate(params) * 256, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
static struct snd_soc_dai_driver voice_dai = {
.name = "goni-voice-dai",
.id = 0,
.playback = {
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.capture = {
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
};
static struct snd_soc_ops goni_voice_ops = {
.hw_params = goni_voice_hw_params,
};
static struct snd_soc_dai_link goni_dai[] = {
{
.name = "WM8994",
.stream_name = "WM8994 HiFi",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm8994-aif1",
.platform_name = "samsung-i2s.0",
.codec_name = "wm8994-codec.0-001a",
.init = goni_wm8994_init,
.ops = &goni_hifi_ops,
}, {
.name = "WM8994 Voice",
.stream_name = "Voice",
.cpu_dai_name = "goni-voice-dai",
.codec_dai_name = "wm8994-aif2",
.codec_name = "wm8994-codec.0-001a",
.ops = &goni_voice_ops,
},
};
static struct snd_soc_card goni = {
.name = "goni",
.owner = THIS_MODULE,
.dai_link = goni_dai,
.num_links = ARRAY_SIZE(goni_dai),
.dapm_widgets = goni_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(goni_dapm_widgets),
.dapm_routes = goni_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(goni_dapm_routes),
};
static int __init goni_init(void)
{
int ret;
if (machine_is_aquila()) {
voice_dai.name = aquila_str[CPU_VOICE_DAI];
goni_dai[1].cpu_dai_name = aquila_str[CPU_VOICE_DAI];
goni.name = aquila_str[MACHINE_NAME];
} else if (!machine_is_goni())
return -ENODEV;
goni_snd_device = platform_device_alloc("soc-audio", -1);
if (!goni_snd_device)
return -ENOMEM;
/* register voice DAI here */
ret = snd_soc_register_dai(&goni_snd_device->dev, &voice_dai);
if (ret) {
platform_device_put(goni_snd_device);
return ret;
}
platform_set_drvdata(goni_snd_device, &goni);
ret = platform_device_add(goni_snd_device);
if (ret) {
snd_soc_unregister_dai(&goni_snd_device->dev);
platform_device_put(goni_snd_device);
}
return ret;
}
static void __exit goni_exit(void)
{
snd_soc_unregister_dai(&goni_snd_device->dev);
platform_device_unregister(goni_snd_device);
}
module_init(goni_init);
module_exit(goni_exit);
/* Module information */
MODULE_DESCRIPTION("ALSA SoC WM8994 GONI(S5PV210)");
MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
MODULE_LICENSE("GPL");
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