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/*
* ASoC driver for TI DAVINCI EVM platform
*
* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/of_platform.h>
#include <linux/clk.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/dma.h>
#include <asm/mach-types.h>
struct snd_soc_card_drvdata_davinci {
struct clk *mclk;
unsigned sysclk;
};
static int evm_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *soc_card = rtd->card;
struct snd_soc_card_drvdata_davinci *drvdata =
snd_soc_card_get_drvdata(soc_card);
if (drvdata->mclk)
return clk_prepare_enable(drvdata->mclk);
return 0;
}
static void evm_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *soc_card = rtd->card;
struct snd_soc_card_drvdata_davinci *drvdata =
snd_soc_card_get_drvdata(soc_card);
if (drvdata->mclk)
clk_disable_unprepare(drvdata->mclk);
}
static int evm_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;
struct snd_soc_card *soc_card = rtd->card;
int ret = 0;
unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
snd_soc_card_get_drvdata(soc_card))->sysclk;
/* set the codec system clock */
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
if (ret < 0)
return ret;
/* set the CPU system clock */
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
if (ret < 0 && ret != -ENOTSUPP)
return ret;
return 0;
}
static struct snd_soc_ops evm_ops = {
.startup = evm_startup,
.shutdown = evm_shutdown,
.hw_params = evm_hw_params,
};
/* davinci-evm machine dapm widgets */
static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_MIC("Mic Jack", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
/* davinci-evm machine audio_mapnections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {
/* Headphone connected to HPLOUT, HPROUT */
{"Headphone Jack", NULL, "HPLOUT"},
{"Headphone Jack", NULL, "HPROUT"},
/* Line Out connected to LLOUT, RLOUT */
{"Line Out", NULL, "LLOUT"},
{"Line Out", NULL, "RLOUT"},
/* Mic connected to (MIC3L | MIC3R) */
{"MIC3L", NULL, "Mic Bias"},
{"MIC3R", NULL, "Mic Bias"},
{"Mic Bias", NULL, "Mic Jack"},
/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
{"LINE1L", NULL, "Line In"},
{"LINE2L", NULL, "Line In"},
{"LINE1R", NULL, "Line In"},
{"LINE2R", NULL, "Line In"},
};
/* Logic for a aic3x as connected on a davinci-evm */
static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct device_node *np = card->dev->of_node;
int ret;
/* Add davinci-evm specific widgets */
snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
ARRAY_SIZE(aic3x_dapm_widgets));
if (np) {
ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
if (ret)
return ret;
} else {
/* Set up davinci-evm specific audio path audio_map */
snd_soc_dapm_add_routes(&card->dapm, audio_map,
ARRAY_SIZE(audio_map));
}
/* not connected */
snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
return 0;
}
/* davinci-evm digital audio interface glue - connects codec <--> CPU */
SND_SOC_DAILINK_DEFS(dm6446,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
"tlv320aic3x-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
static struct snd_soc_dai_link dm6446_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.init = evm_aic3x_init,
.ops = &evm_ops,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
SND_SOC_DAILINK_REG(dm6446),
};
SND_SOC_DAILINK_DEFS(dm355,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp.1")),
DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
"tlv320aic3x-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp.1")));
static struct snd_soc_dai_link dm355_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.init = evm_aic3x_init,
.ops = &evm_ops,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
SND_SOC_DAILINK_REG(dm355),
};
#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
SND_SOC_DAILINK_DEFS(dm365,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
"tlv320aic3x-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
SND_SOC_DAILINK_DEFS(dm365,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-vcif")),
DAILINK_COMP_ARRAY(COMP_CODEC("cq93vc-codec", "cq93vc-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-vcif")));
#endif
static struct snd_soc_dai_link dm365_evm_dai = {
#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.init = evm_aic3x_init,
.ops = &evm_ops,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
SND_SOC_DAILINK_REG(dm365),
#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
.name = "Voice Codec - CQ93VC",
.stream_name = "CQ93",
SND_SOC_DAILINK_REG(dm365),
#endif
};
SND_SOC_DAILINK_DEFS(dm6467_aic3x,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")),
DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.0-001a",
"tlv320aic3x-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0")));
SND_SOC_DAILINK_DEFS(dm6467_spdif,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
DAILINK_COMP_ARRAY(COMP_CODEC("spdif_dit", "dit-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
static struct snd_soc_dai_link dm6467_evm_dai[] = {
{
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.init = evm_aic3x_init,
.ops = &evm_ops,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
SND_SOC_DAILINK_REG(dm6467_aic3x),
},
{
.name = "McASP",
.stream_name = "spdif",
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
SND_SOC_DAILINK_REG(dm6467_spdif),
},
};
SND_SOC_DAILINK_DEFS(da830,
DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
"tlv320aic3x-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
static struct snd_soc_dai_link