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- // SPDX-License-Identifier: GPL-2.0
- // Copyright (c) 2022, Linaro Limited
- #include <linux/module.h>
- #include <linux/platform_device.h>
- #include <linux/of_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);
- 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 = asoc_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 = asoc_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 = asoc_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 = asoc_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 <[email protected]");
- MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");
- MODULE_LICENSE("GPL v2");
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