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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2024-2025 Intel Corporation
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
//
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
static const struct snd_soc_dapm_widget card_widgets[] = {
SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
SND_SOC_DAPM_LINE("CPB Line Out", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("CPB Line In", NULL),
};
static const struct snd_soc_dapm_route card_routes[] = {
{ "CPB Stereo HP 1", NULL, "AOUT1L" },
{ "CPB Stereo HP 1", NULL, "AOUT1R" },
{ "CPB Stereo HP 2", NULL, "AOUT2L" },
{ "CPB Stereo HP 2", NULL, "AOUT2R" },
{ "CPB Stereo HP 3", NULL, "AOUT3L" },
{ "CPB Stereo HP 3", NULL, "AOUT3R" },
{ "CPB Line Out", NULL, "AOUT4L" },
{ "CPB Line Out", NULL, "AOUT4R" },
{ "AIN1L", NULL, "CPB Stereo Mic 1" },
{ "AIN1R", NULL, "CPB Stereo Mic 1" },
{ "AIN2L", NULL, "CPB Stereo Mic 2" },
{ "AIN2R", NULL, "CPB Stereo Mic 2" },
{ "AIN3L", NULL, "CPB Line In" },
{ "AIN3R", NULL, "CPB Line In" },
};
static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime,
struct snd_pcm_hw_params *params)
{
struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
/* Set SSP to 24 bit. */
snd_mask_none(fmt);
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
SND_SOC_DAILINK_DEF(pcm3168a_dac,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac")));
SND_SOC_DAILINK_DEF(pcm3168a_adc,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc")));
SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin")));
static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links)
{
struct snd_soc_dai_link_component *platform;
struct snd_soc_dai_link *dl;
const int num_dl = 2;
dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL);
platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
if (!dl || !platform)
return -ENOMEM;
platform->name = dev_name(dev);
dl[0].num_cpus = 1;
dl[0].num_codecs = 1;
dl[0].platforms = platform;
dl[0].num_platforms = 1;
dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP;
dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup;
dl[0].nonatomic = 1;
dl[0].no_pcm = 1;
memcpy(&dl[1], &dl[0], sizeof(*dl));
dl[0].name = "SSP0-Codec-dac";
dl[0].cpus = cpu_ssp0;
dl[0].codecs = pcm3168a_dac;
dl[1].name = "SSP2-Codec-adc";
dl[1].cpus = cpu_ssp2;
dl[1].codecs = pcm3168a_adc;
*links = dl;
*num_links = num_dl;
return 0;
}
static int avs_pcm3168a_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links);
if (ret)
return ret;
card->name = "avs_pcm3168a";
card->dev = dev;
card->owner = THIS_MODULE;
card->dapm_widgets = card_widgets;
card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
card->dapm_routes = card_routes;
card->num_dapm_routes = ARRAY_SIZE(card_routes);
card->fully_routed = true;
return devm_snd_soc_register_card(dev, card);
}
static const struct platform_device_id avs_pcm3168a_driver_ids[] = {
{
.name = "avs_pcm3168a",
},
{},
};
MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids);
static struct platform_driver avs_pcm3168a_driver = {
.probe = avs_pcm3168a_probe,
.driver = {
.name = "avs_pcm3168a",
.pm = &snd_soc_pm_ops,
},
.id_table = avs_pcm3168a_driver_ids,
};
module_platform_driver(avs_pcm3168a_driver);
MODULE_DESCRIPTION("Intel pcm3168a machine driver");
MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
MODULE_LICENSE("GPL");
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