// SPDX-License-Identifier: GPL-2.0-only
/*
* bytcht - da7213 . c - ASoc Machine driver for Intel Baytrail and
* Cherrytrail - based platforms , with Dialog DA7213 codec
*
* Copyright ( C ) 2017 Intel Corporation
* Author : Pierre - Louis Bossart < pierre - louis . bossart @ linux . intel . com >
*
* ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
*
* ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
*/
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/da7213.h"
#include "../atom/sst-atom-controls.h"
static const struct snd_kcontrol_new controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack" ),
SOC_DAPM_PIN_SWITCH("Headset Mic" ),
SOC_DAPM_PIN_SWITCH("Mic" ),
SOC_DAPM_PIN_SWITCH("Aux In" ),
};
static const struct snd_soc_dapm_widget dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack" , NULL),
SND_SOC_DAPM_MIC("Headset Mic" , NULL),
SND_SOC_DAPM_MIC("Mic" , NULL),
SND_SOC_DAPM_LINE("Aux In" , NULL),
};
static const struct snd_soc_dapm_route audio_map[] = {
{"Headphone Jack" , NULL, "HPL" },
{"Headphone Jack" , NULL, "HPR" },
{"AUXL" , NULL, "Aux In" },
{"AUXR" , NULL, "Aux In" },
/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
{"MIC1" , NULL, "Headset Mic" },
{"MIC2" , NULL, "Mic" },
/* SOC-codec link */
{"ssp2 Tx" , NULL, "codec_out0" },
{"ssp2 Tx" , NULL, "codec_out1" },
{"codec_in0" , NULL, "ssp2 Rx" },
{"codec_in1" , NULL, "ssp2 Rx" },
{"Playback" , NULL, "ssp2 Tx" },
{"ssp2 Rx" , NULL, "Capture" },
};
static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
int ret;
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
/* The DSP will convert the FE rate to 48k, stereo, 24bits */
rate->min = rate->max = 48000 ;
channels->min = channels->max = 2 ;
/* set SSP2 to 24-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
/*
* Default mode for SSP configuration is TDM 4 slot , override config
* with explicit setting to I2S 2 ch 24 - bit . The word length is set with
* dai_set_tdm_slot ( ) since there is no other API exposed
*/
ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0 ),
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_BP_FP);
if (ret < 0 ) {
dev_err(rtd->dev, "can't set format to I2S, err %d\n" , ret);
return ret;
}
ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0 ), 0 x3, 0 x3, 2 , 24 );
if (ret < 0 ) {
dev_err(rtd->dev, "can't set I2S config, err %d\n" , ret);
return ret;
}
return 0 ;
}
static int aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000 );
}
static int aif1_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0 );
int ret;
ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
19200000 , SND_SOC_CLOCK_IN);
if (ret < 0 )
dev_err(codec_dai->dev, "can't set codec sysclk configuration\n" );
ret = snd_soc_dai_set_pll(codec_dai, 0 ,
DA7213_SYSCLK_PLL_SRM, 0 , DA7213_PLL_FREQ_OUT_98304000);
if (ret < 0 ) {
dev_err(codec_dai->dev, "failed to start PLL: %d\n" , ret);
return -EIO;
}
return ret;
}
static int aif1_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0 );
int ret;
ret = snd_soc_dai_set_pll(codec_dai, 0 ,
DA7213_SYSCLK_MCLK, 0 , 0 );
if (ret < 0 ) {
dev_err(codec_dai->dev, "failed to stop PLL: %d\n" , ret);
return -EIO;
}
return ret;
}
static const struct snd_soc_ops aif1_ops = {
.startup = aif1_startup,
};
static const struct snd_soc_ops ssp2_ops = {
.hw_params = aif1_hw_params,
.hw_free = aif1_hw_free,
};
SND_SOC_DAILINK_DEF(dummy,
DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(media,
DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai" )));
SND_SOC_DAILINK_DEF(deepbuffer,
DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai" )));
SND_SOC_DAILINK_DEF(ssp2_port,
DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port" )));
SND_SOC_DAILINK_DEF(ssp2_codec,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7213:00" ,
"da7213-hifi" )));
SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform" )));
static struct snd_soc_dai_link dailink[] = {
[MERR_DPCM_AUDIO] = {
.name = "Audio Port" ,
.stream_name = "Audio" ,
.nonatomic = true ,
.dynamic = 1 ,
.ops = &aif1_ops,
SND_SOC_DAILINK_REG(media, dummy, platform),
},
[MERR_DPCM_DEEP_BUFFER] = {
.name = "Deep-Buffer Audio Port" ,
.stream_name = "Deep-Buffer Audio" ,
.nonatomic = true ,
.dynamic = 1 ,
.playback_only = 1 ,
.ops = &aif1_ops,
SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
},
/* CODEC<->CODEC link */
/* back ends */
{
.name = "SSP2-Codec" ,
.id = 0 ,
.no_pcm = 1 ,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBC_CFC,
.be_hw_params_fixup = codec_fixup,
.ops = &ssp2_ops,
SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
},
};
/* use space before codec name to simplify card ID, and simplify driver name */
#define SOF_CARD_NAME "bytcht da7213" /* card name will be 'sof-bytcht da7213' */
#define SOF_DRIVER_NAME "SOF"
#define CARD_NAME "bytcht-da7213"
#define DRIVER_NAME NULL /* card name will be used for driver name */
/* SoC card */
static struct snd_soc_card bytcht_da7213_card = {
.name = CARD_NAME,
.driver_name = DRIVER_NAME,
.owner = THIS_MODULE,
.dai_link = dailink,
.num_links = ARRAY_SIZE(dailink),
.controls = controls,
.num_controls = ARRAY_SIZE(controls),
.dapm_widgets = dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
.dapm_routes = audio_map,
.num_dapm_routes = ARRAY_SIZE(audio_map),
};
static char codec_name[SND_ACPI_I2C_ID_LEN];
static int bytcht_da7213_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct snd_soc_acpi_mach *mach;
const char *platform_name;
struct acpi_device *adev;
bool sof_parent;
int dai_index = 0 ;
int ret_val = 0 ;
int i;
mach = pdev->dev.platform_data;
card = &bytcht_da7213_card;
card->dev = &pdev->dev;
/* fix index of codec dai */
for (i = 0 ; i < ARRAY_SIZE(dailink); i++) {
if (dailink[i].num_codecs &&
!strcmp(dailink[i].codecs->name, "i2c-DLGS7213:00" )) {
dai_index = i;
break ;
}
}
/* fixup codec name based on HID */
adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1 );
if (adev) {
snprintf(codec_name, sizeof (codec_name),
"i2c-%s" , acpi_dev_name(adev));
dailink[dai_index].codecs->name = codec_name;
} else {
dev_err(&pdev->dev, "Error cannot find '%s' dev\n" , mach->id);
return -ENOENT;
}
acpi_dev_put(adev);
/* override platform name, if required */
platform_name = mach->mach_params.platform;
ret_val = snd_soc_fixup_dai_links_platform_name(card, platform_name);
if (ret_val)
return ret_val;
sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
/* set card and driver name */
if (sof_parent) {
bytcht_da7213_card.name = SOF_CARD_NAME;
bytcht_da7213_card.driver_name = SOF_DRIVER_NAME;
} else {
bytcht_da7213_card.name = CARD_NAME;
bytcht_da7213_card.driver_name = DRIVER_NAME;
}
/* set pm ops */
if (sof_parent)
pdev->dev.driver->pm = &snd_soc_pm_ops;
ret_val = devm_snd_soc_register_card(&pdev->dev, card);
if (ret_val) {
dev_err(&pdev->dev,
"snd_soc_register_card failed %d\n" , ret_val);
return ret_val;
}
platform_set_drvdata(pdev, card);
return ret_val;
}
static struct platform_driver bytcht_da7213_driver = {
.driver = {
.name = "bytcht_da7213" ,
},
.probe = bytcht_da7213_probe,
};
module_platform_driver(bytcht_da7213_driver);
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver" );
MODULE_AUTHOR("Pierre-Louis Bossart" );
MODULE_LICENSE("GPL v2" );
MODULE_ALIAS("platform:bytcht_da7213" );
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