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1// SPDX-License-Identifier: GPL-2.02// Copyright (c) 2022, Linaro Limited3 4#include <dt-bindings/sound/qcom,q6afe.h>5#include <linux/module.h>6#include <linux/platform_device.h>7#include <sound/soc.h>8#include <sound/soc-dapm.h>9#include <sound/pcm.h>10#include <linux/soundwire/sdw.h>11#include <sound/jack.h>12#include <linux/input-event-codes.h>13#include "qdsp6/q6afe.h"14#include "common.h"15#include "sdw.h"16 17struct sc8280xp_snd_data {18 bool stream_prepared[AFE_PORT_MAX];19 struct snd_soc_card *card;20 struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];21 struct snd_soc_jack jack;22 struct snd_soc_jack dp_jack[8];23 bool jack_setup;24};25 26static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)27{28 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);29 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);30 struct snd_soc_card *card = rtd->card;31 struct snd_soc_jack *dp_jack = NULL;32 int dp_pcm_id = 0;33 34 switch (cpu_dai->id) {35 case WSA_CODEC_DMA_RX_0:36 case WSA_CODEC_DMA_RX_1:37 /*38 * Set limit of -3 dB on Digital Volume and 0 dB on PA Volume39 * to reduce the risk of speaker damage until we have active40 * speaker protection in place.41 */42 snd_soc_limit_volume(card, "WSA_RX0 Digital Volume", 81);43 snd_soc_limit_volume(card, "WSA_RX1 Digital Volume", 81);44 snd_soc_limit_volume(card, "SpkrLeft PA Volume", 17);45 snd_soc_limit_volume(card, "SpkrRight PA Volume", 17);46 break;47 case DISPLAY_PORT_RX_0:48 /* DISPLAY_PORT dai ids are not contiguous */49 dp_pcm_id = 0;50 dp_jack = &data->dp_jack[dp_pcm_id];51 break;52 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7:53 dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1;54 dp_jack = &data->dp_jack[dp_pcm_id];55 break;56 default:57 break;58 }59 60 if (dp_jack)61 return qcom_snd_dp_jack_setup(rtd, dp_jack, dp_pcm_id);62 63 return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);64}65 66static void sc8280xp_snd_shutdown(struct snd_pcm_substream *substream)67{68 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);69 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);70 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);71 struct sdw_stream_runtime *sruntime = pdata->sruntime[cpu_dai->id];72 73 pdata->sruntime[cpu_dai->id] = NULL;74 sdw_release_stream(sruntime);75}76 77static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,78 struct snd_pcm_hw_params *params)79{80 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);81 struct snd_interval *rate = hw_param_interval(params,82 SNDRV_PCM_HW_PARAM_RATE);83 struct snd_interval *channels = hw_param_interval(params,84 SNDRV_PCM_HW_PARAM_CHANNELS);85 86 rate->min = rate->max = 48000;87 channels->min = 2;88 channels->max = 2;89 switch (cpu_dai->id) {90 case TX_CODEC_DMA_TX_0:91 case TX_CODEC_DMA_TX_1:92 case TX_CODEC_DMA_TX_2:93 case TX_CODEC_DMA_TX_3:94 channels->min = 1;95 break;96 default:97 break;98 }99 100 101 return 0;102}103 104static int sc8280xp_snd_hw_params(struct snd_pcm_substream *substream,105 struct snd_pcm_hw_params *params)106{107 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);108 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);109 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);110 111 return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]);112}113 114static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream)115{116 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);117 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);118 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);119 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];120 121 return qcom_snd_sdw_prepare(substream, sruntime,122 &data->stream_prepared[cpu_dai->id]);123}124 125static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream)126{127 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);128 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);129 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);130 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];131 132 return qcom_snd_sdw_hw_free(substream, sruntime,133 &data->stream_prepared[cpu_dai->id]);134}135 136static const struct snd_soc_ops sc8280xp_be_ops = {137 .startup = qcom_snd_sdw_startup,138 .shutdown = sc8280xp_snd_shutdown,139 .hw_params = sc8280xp_snd_hw_params,140 .hw_free = sc8280xp_snd_hw_free,141 .prepare = sc8280xp_snd_prepare,142};143 144static void sc8280xp_add_be_ops(struct snd_soc_card *card)145{146 struct snd_soc_dai_link *link;147 int i;148 149 for_each_card_prelinks(card, i, link) {150 if (link->no_pcm == 1) {151 link->init = sc8280xp_snd_init;152 link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup;153 link->ops = &sc8280xp_be_ops;154 }155 }156}157 158static int sc8280xp_platform_probe(struct platform_device *pdev)159{160 struct snd_soc_card *card;161 struct sc8280xp_snd_data *data;162 struct device *dev = &pdev->dev;163 int ret;164 165 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);166 if (!card)167 return -ENOMEM;168 card->owner = THIS_MODULE;169 /* Allocate the private data */170 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);171 if (!data)172 return -ENOMEM;173 174 card->dev = dev;175 dev_set_drvdata(dev, card);176 snd_soc_card_set_drvdata(card, data);177 ret = qcom_snd_parse_of(card);178 if (ret)179 return ret;180 181 card->driver_name = of_device_get_match_data(dev);182 sc8280xp_add_be_ops(card);183 return devm_snd_soc_register_card(dev, card);184}185 186static const struct of_device_id snd_sc8280xp_dt_match[] = {187 {.compatible = "qcom,qcm6490-idp-sndcard", "qcm6490"},188 {.compatible = "qcom,qcs6490-rb3gen2-sndcard", "qcs6490"},189 {.compatible = "qcom,sc8280xp-sndcard", "sc8280xp"},190 {.compatible = "qcom,sm8450-sndcard", "sm8450"},191 {.compatible = "qcom,sm8550-sndcard", "sm8550"},192 {.compatible = "qcom,sm8650-sndcard", "sm8650"},193 {}194};195 196MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match);197 198static struct platform_driver snd_sc8280xp_driver = {199 .probe = sc8280xp_platform_probe,200 .driver = {201 .name = "snd-sc8280xp",202 .of_match_table = snd_sc8280xp_dt_match,203 },204};205module_platform_driver(snd_sc8280xp_driver);206MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");207MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");208MODULE_LICENSE("GPL");209