1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2022, Linaro Limited 3 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 17 struct 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 26 static 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 Volume 39 * to reduce the risk of speaker damage until we have active 40 * 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 66 static 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 77 static 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 } 103 104 static 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 } 113 114 static 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 } 124 125 static 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 } 135 136 static 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 }; 143 144 static 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 } 157 158 static 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 } 185 186 static 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 }; 195 196 MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match); 197 198 static 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 }; 205 module_platform_driver(snd_sc8280xp_driver); 206 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); 207 MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver"); 208 MODULE_LICENSE("GPL"); 209