// SPDX-License-Identifier: GPL-2.0-only
/*
* cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based
* platforms Cherrytrail and Braswell, with nau8824 codec.
*
* Copyright (C) 2018 Intel Corp
* Copyright (C) 2018 Nuvoton Technology Corp
*
* Author: Wang, Joseph C <[email protected]>
* Co-author: John Hsu <[email protected]>
* This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c
*/
#include <linux/module.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 <sound/jack.h>
#include <linux/input.h>
#include "../atom/sst-atom-controls.h"
#include "../../codecs/nau8824.h"
struct cht_mc_private {
struct snd_soc_jack jack;
};
static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static const struct snd_soc_dapm_widget cht_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 cht_audio_map[] = {
{"Ext Spk", NULL, "SPKOUTL"},
{"Ext Spk", NULL, "SPKOUTR"},
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
{"MIC1", NULL, "Int Mic"},
{"MIC2", NULL, "Int Mic"},
{"HSMIC1", NULL, "Headset Mic"},
{"HSMIC2", NULL, "Headset Mic"},
{"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, "Capture"},
};
static const struct snd_kcontrol_new cht_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 cht_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, NAU8824_CLK_FLL_FS, 0,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "can't set FS clock %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params),
params_rate(params) * 256);
if (ret < 0) {
dev_err(codec_dai->dev, "can't set FLL: %d\n", ret);
return ret;
}
return 0;
}
static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
{
struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
struct snd_soc_jack *jack = &ctx->jack;
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
struct snd_soc_component *component = codec_dai->component;
int ret, jack_type;
/* NAU88L24 supports 4 buttons headset detection
* KEY_PLAYPAUSE
* KEY_VOICECOMMAND
* KEY_VOLUMEUP
* KEY_VOLUMEDOWN
*/
jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3;
ret = snd_soc_card_jack_new_pins(runtime->card, "Headset", jack_type,
jack, cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins));
if (ret) {
dev_err(runtime->dev,
"Headset Jack creation failed %d\n", ret);
return ret;
}
snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
nau8824_enable_jack_detect(component, jack);
return ret;
}
static int cht_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);
struct snd_mask *fmt =
hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
int ret;
/* 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 */
snd_mask_none(fmt);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(rtd, 0), 0xf, 0x1, 4, 24);
if (ret < 0) {
dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
return ret;
}
return 0;
}
static int cht_aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000);
}
static const struct snd_soc_ops cht_aif1_ops = {
.startup = cht_aif1_startup,
};
static const struct snd_soc_ops cht_be_ssp2_ops = {
.hw_params = cht_aif1_hw_params,
};
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-10508824:00",
NAU8824_CODEC_DAI)));
SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
static struct snd_soc_dai_link cht_dailink[] = {
/* Front End DAI links */
[MERR_DPCM_AUDIO] = {
.name = "Audio Port",
.stream_name = "Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &cht_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,
.dpcm_playback = 1,
.ops = &cht_aif1_ops,
SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
},
/* Back End DAI links */
{
/* SSP2 - Codec */
.name = "SSP2-Codec",
.id = 0,
.no_pcm = 1,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
| SND_SOC_DAIFMT_CBC_CFC,
.init = cht_codec_init,
.be_hw_params_fixup = cht_codec_fixup,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &cht_be_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 nau8824" /* card name will be 'sof-bytcht nau8824 */
#define SOF_DRIVER_NAME "SOF"
#define CARD_NAME "chtnau8824"
#define DRIVER_NAME NULL /* card name will be used for driver name */
/* SoC card */
static struct snd_soc_card snd_soc_card_cht = {
.owner = THIS_MODULE,
.dai_link = cht_dailink,
.num_links = ARRAY_SIZE(cht_dailink),
.dapm_widgets = cht_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
.dapm_routes = cht_audio_map,
.num_dapm_routes = ARRAY_SIZE(cht_audio_map),
.controls = cht_mc_controls,
.num_controls = ARRAY_SIZE(cht_mc_controls),
};
static int snd_cht_mc_probe(struct platform_device *pdev)
{
struct cht_mc_private *drv;
struct snd_soc_acpi_mach *mach;
const char *platform_name;
bool sof_parent;
int ret_val;
drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
if (!drv)
return -ENOMEM;
snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
/* override platform name, if required */
snd_soc_card_cht.dev = &pdev->dev;
mach = pdev->dev.platform_data;
platform_name = mach->mach_params.platform;
ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
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) {
snd_soc_card_cht.name = SOF_CARD_NAME;
snd_soc_card_cht.driver_name = SOF_DRIVER_NAME;
} else {
snd_soc_card_cht.name = CARD_NAME;
snd_soc_card_cht.driver_name = DRIVER_NAME;
}
snd_soc_card_cht.components = nau8824_components();
/* set pm ops */
if (sof_parent)
pdev->dev.driver->pm = &snd_soc_pm_ops;
/* register the soc card */
ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
if (ret_val) {
dev_err(&pdev->dev,
"snd_soc_register_card failed %d\n", ret_val);
return ret_val;
}
platform_set_drvdata(pdev, &snd_soc_card_cht);
return ret_val;
}
static struct platform_driver snd_cht_mc_driver = {
.driver = {
.name = "cht-bsw-nau8824",
},
.probe = snd_cht_mc_probe,
};
module_platform_driver(snd_cht_mc_driver);
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
MODULE_AUTHOR("Wang, Joseph C <[email protected]>");
MODULE_AUTHOR("John Hsu <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:cht-bsw-nau8824");
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