230 строки
6.3 KiB
C
230 строки
6.3 KiB
C
/*
|
|
* byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
|
|
*
|
|
* Copyright (C) 2014 Intel Corp
|
|
* Author: Subhransu S. Prusty <subhransu.s.prusty@intel.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; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/device.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/input.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include "../codecs/rt5640.h"
|
|
#include "sst-atom-controls.h"
|
|
|
|
static const struct snd_soc_dapm_widget byt_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphone", NULL),
|
|
SND_SOC_DAPM_MIC("Headset Mic", NULL),
|
|
SND_SOC_DAPM_MIC("Int Mic", NULL),
|
|
SND_SOC_DAPM_SPK("Ext Spk", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route byt_audio_map[] = {
|
|
{"IN2P", NULL, "Headset Mic"},
|
|
{"IN2N", NULL, "Headset Mic"},
|
|
{"Headset Mic", NULL, "MICBIAS1"},
|
|
{"IN1P", NULL, "MICBIAS1"},
|
|
{"LDO2", NULL, "Int Mic"},
|
|
{"Headphone", NULL, "HPOL"},
|
|
{"Headphone", NULL, "HPOR"},
|
|
{"Ext Spk", NULL, "SPOLP"},
|
|
{"Ext Spk", NULL, "SPOLN"},
|
|
{"Ext Spk", NULL, "SPORP"},
|
|
{"Ext Spk", NULL, "SPORN"},
|
|
|
|
{"AIF1 Playback", NULL, "ssp2 Tx"},
|
|
{"ssp2 Tx", NULL, "codec_out0"},
|
|
{"ssp2 Tx", NULL, "codec_out1"},
|
|
{"codec_in0", NULL, "ssp2 Rx"},
|
|
{"codec_in1", NULL, "ssp2 Rx"},
|
|
{"ssp2 Rx", NULL, "AIF1 Capture"},
|
|
};
|
|
|
|
static const struct snd_kcontrol_new byt_mc_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Headphone"),
|
|
SOC_DAPM_PIN_SWITCH("Headset Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Int Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Ext Spk"),
|
|
};
|
|
|
|
static int byt_aif1_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;
|
|
int ret;
|
|
|
|
snd_soc_dai_set_bclk_ratio(codec_dai, 50);
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
|
|
params_rate(params) * 512,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "can't set codec clock %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
|
|
params_rate(params) * 50,
|
|
params_rate(params) * 512);
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_pcm_stream byt_dai_params = {
|
|
.formats = SNDRV_PCM_FMTBIT_S24_LE,
|
|
.rate_min = 48000,
|
|
.rate_max = 48000,
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
};
|
|
|
|
static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
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 covert the FE rate to 48k, stereo, 24bits */
|
|
rate->min = rate->max = 48000;
|
|
channels->min = channels->max = 2;
|
|
|
|
/* set SSP2 to 24-bit */
|
|
snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT -
|
|
SNDRV_PCM_HW_PARAM_FIRST_MASK],
|
|
SNDRV_PCM_FORMAT_S24_LE);
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int rates_48000[] = {
|
|
48000,
|
|
};
|
|
|
|
static struct snd_pcm_hw_constraint_list constraints_48000 = {
|
|
.count = ARRAY_SIZE(rates_48000),
|
|
.list = rates_48000,
|
|
};
|
|
|
|
static int byt_aif1_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_hw_constraint_list(substream->runtime, 0,
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
&constraints_48000);
|
|
}
|
|
|
|
static struct snd_soc_ops byt_aif1_ops = {
|
|
.startup = byt_aif1_startup,
|
|
};
|
|
|
|
static struct snd_soc_ops byt_be_ssp2_ops = {
|
|
.hw_params = byt_aif1_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_dai_link byt_dailink[] = {
|
|
[MERR_DPCM_AUDIO] = {
|
|
.name = "Baytrail Audio Port",
|
|
.stream_name = "Baytrail Audio",
|
|
.cpu_dai_name = "media-cpu-dai",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.codec_name = "snd-soc-dummy",
|
|
.platform_name = "sst-mfld-platform",
|
|
.ignore_suspend = 1,
|
|
.dynamic = 1,
|
|
.dpcm_playback = 1,
|
|
.dpcm_capture = 1,
|
|
.ops = &byt_aif1_ops,
|
|
},
|
|
[MERR_DPCM_COMPR] = {
|
|
.name = "Baytrail Compressed Port",
|
|
.stream_name = "Baytrail Compress",
|
|
.cpu_dai_name = "compress-cpu-dai",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.codec_name = "snd-soc-dummy",
|
|
.platform_name = "sst-mfld-platform",
|
|
},
|
|
/* back ends */
|
|
{
|
|
.name = "SSP2-Codec",
|
|
.be_id = 1,
|
|
.cpu_dai_name = "ssp2-port",
|
|
.platform_name = "sst-mfld-platform",
|
|
.no_pcm = 1,
|
|
.codec_dai_name = "rt5640-aif1",
|
|
.codec_name = "i2c-10EC5640:00",
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
|
|
| SND_SOC_DAIFMT_CBS_CFS,
|
|
.be_hw_params_fixup = byt_codec_fixup,
|
|
.ignore_suspend = 1,
|
|
.dpcm_playback = 1,
|
|
.dpcm_capture = 1,
|
|
.ops = &byt_be_ssp2_ops,
|
|
},
|
|
};
|
|
|
|
/* SoC card */
|
|
static struct snd_soc_card snd_soc_card_byt = {
|
|
.name = "baytrailcraudio",
|
|
.dai_link = byt_dailink,
|
|
.num_links = ARRAY_SIZE(byt_dailink),
|
|
.dapm_widgets = byt_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets),
|
|
.dapm_routes = byt_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(byt_audio_map),
|
|
.controls = byt_mc_controls,
|
|
.num_controls = ARRAY_SIZE(byt_mc_controls),
|
|
};
|
|
|
|
static int snd_byt_mc_probe(struct platform_device *pdev)
|
|
{
|
|
int ret_val = 0;
|
|
|
|
/* register the soc card */
|
|
snd_soc_card_byt.dev = &pdev->dev;
|
|
|
|
ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_byt);
|
|
if (ret_val) {
|
|
dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val);
|
|
return ret_val;
|
|
}
|
|
platform_set_drvdata(pdev, &snd_soc_card_byt);
|
|
return ret_val;
|
|
}
|
|
|
|
static struct platform_driver snd_byt_mc_driver = {
|
|
.driver = {
|
|
.name = "bytt100_rt5640",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = snd_byt_mc_probe,
|
|
};
|
|
|
|
module_platform_driver(snd_byt_mc_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
|
|
MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:bytt100_rt5640");
|