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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2022, Linaro Limited
#include <dt-bindings/sound/qcom,q6afe.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm.h>
#include <linux/soundwire/sdw.h>
#include <sound/jack.h>
#include <linux/input-event-codes.h>
#include "qdsp6/q6afe.h"
#include "common.h"
#include "sdw.h"
#define DRIVER_NAME "sc8280xp"
struct sc8280xp_snd_data {
bool stream_prepared[AFE_PORT_MAX];
struct snd_soc_card *card;
struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
struct snd_soc_jack jack;
bool jack_setup;
};
static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
{
struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct snd_soc_card *card = rtd->card;
switch (cpu_dai->id) {
case WSA_CODEC_DMA_RX_0:
case WSA_CODEC_DMA_RX_1:
/*
* set limit of 0dB on Digital Volume for Speakers,
* this can prevent damage of speakers to some extent without
* active speaker protection
*/
snd_soc_limit_volume(card, "WSA_RX0 Digital Volume", 84);
snd_soc_limit_volume(card, "WSA_RX1 Digital Volume", 84);
break;
default:
break;
}
return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
}
static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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);
rate->min = rate->max = 48000;
channels->min = 2;
channels->max = 2;
switch (cpu_dai->id) {
case TX_CODEC_DMA_TX_0:
case TX_CODEC_DMA_TX_1:
case TX_CODEC_DMA_TX_2:
case TX_CODEC_DMA_TX_3:
channels->min = 1;
break;
default:
break;
}
return 0;
}
static int sc8280xp_snd_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 *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]);
}
static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
return qcom_snd_sdw_prepare(substream, sruntime,
&data->stream_prepared[cpu_dai->id]);
}
static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
return qcom_snd_sdw_hw_free(substream, sruntime,
&data->stream_prepared[cpu_dai->id]);
}
static const struct snd_soc_ops sc8280xp_be_ops = {
.hw_params = sc8280xp_snd_hw_params,
.hw_free = sc8280xp_snd_hw_free,
.prepare = sc8280xp_snd_prepare,
};
static void sc8280xp_add_be_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link) {
if (link->no_pcm == 1) {
link->init = sc8280xp_snd_init;
link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup;
link->ops = &sc8280xp_be_ops;
}
}
}
static int sc8280xp_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sc8280xp_snd_data *data;
struct device *dev = &pdev->dev;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->owner = THIS_MODULE;
/* Allocate the private data */
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
card->dev = dev;
dev_set_drvdata(dev, card);
snd_soc_card_set_drvdata(card, data);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
card->driver_name = DRIVER_NAME;
sc8280xp_add_be_ops(card);
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id snd_sc8280xp_dt_match[] = {
{.compatible = "qcom,sc8280xp-sndcard",},
{}
};
MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match);
static struct platform_driver snd_sc8280xp_driver = {
.probe = sc8280xp_platform_probe,
.driver = {
.name = "snd-sc8280xp",
.of_match_table = snd_sc8280xp_dt_match,
},
};
module_platform_driver(snd_sc8280xp_driver);
MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
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