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 PRIMARY_MI2S_RX...QUATERNARY_MI2S_TX: 36 case QUINARY_MI2S_RX...QUINARY_MI2S_TX: 37 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP); 38 break; 39 case WSA_CODEC_DMA_RX_0: 40 case WSA_CODEC_DMA_RX_1: 41 /* 42 * Set limit of -3 dB on Digital Volume and 0 dB on PA Volume 43 * to reduce the risk of speaker damage until we have active 44 * speaker protection in place. 45 */ 46 snd_soc_limit_volume(card, "WSA_RX0 Digital Volume", 81); 47 snd_soc_limit_volume(card, "WSA_RX1 Digital Volume", 81); 48 snd_soc_limit_volume(card, "SpkrLeft PA Volume", 17); 49 snd_soc_limit_volume(card, "SpkrRight PA Volume", 17); 50 break; 51 case DISPLAY_PORT_RX_0: 52 /* DISPLAY_PORT dai ids are not contiguous */ 53 dp_pcm_id = 0; 54 dp_jack = &data->dp_jack[dp_pcm_id]; 55 break; 56 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7: 57 dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1; 58 dp_jack = &data->dp_jack[dp_pcm_id]; 59 break; 60 default: 61 break; 62 } 63 64 if (dp_jack) 65 return qcom_snd_dp_jack_setup(rtd, dp_jack, dp_pcm_id); 66 67 return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); 68 } 69 70 static void sc8280xp_snd_shutdown(struct snd_pcm_substream *substream) 71 { 72 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 73 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 74 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 75 struct sdw_stream_runtime *sruntime = pdata->sruntime[cpu_dai->id]; 76 77 pdata->sruntime[cpu_dai->id] = NULL; 78 sdw_release_stream(sruntime); 79 } 80 81 static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 82 struct snd_pcm_hw_params *params) 83 { 84 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 85 struct snd_interval *rate = hw_param_interval(params, 86 SNDRV_PCM_HW_PARAM_RATE); 87 struct snd_interval *channels = hw_param_interval(params, 88 SNDRV_PCM_HW_PARAM_CHANNELS); 89 90 rate->min = rate->max = 48000; 91 channels->min = 2; 92 channels->max = 2; 93 switch (cpu_dai->id) { 94 case TX_CODEC_DMA_TX_0: 95 case TX_CODEC_DMA_TX_1: 96 case TX_CODEC_DMA_TX_2: 97 case TX_CODEC_DMA_TX_3: 98 channels->min = 1; 99 break; 100 default: 101 break; 102 } 103 104 105 return 0; 106 } 107 108 static int sc8280xp_snd_hw_params(struct snd_pcm_substream *substream, 109 struct snd_pcm_hw_params *params) 110 { 111 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 112 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 113 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 114 115 return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]); 116 } 117 118 static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream) 119 { 120 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 121 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 122 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 123 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 124 125 return qcom_snd_sdw_prepare(substream, sruntime, 126 &data->stream_prepared[cpu_dai->id]); 127 } 128 129 static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream) 130 { 131 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 132 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 133 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 134 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 135 136 return qcom_snd_sdw_hw_free(substream, sruntime, 137 &data->stream_prepared[cpu_dai->id]); 138 } 139 140 static const struct snd_soc_ops sc8280xp_be_ops = { 141 .startup = qcom_snd_sdw_startup, 142 .shutdown = sc8280xp_snd_shutdown, 143 .hw_params = sc8280xp_snd_hw_params, 144 .hw_free = sc8280xp_snd_hw_free, 145 .prepare = sc8280xp_snd_prepare, 146 }; 147 148 static void sc8280xp_add_be_ops(struct snd_soc_card *card) 149 { 150 struct snd_soc_dai_link *link; 151 int i; 152 153 for_each_card_prelinks(card, i, link) { 154 if (link->no_pcm == 1) { 155 link->init = sc8280xp_snd_init; 156 link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup; 157 link->ops = &sc8280xp_be_ops; 158 } 159 } 160 } 161 162 static int sc8280xp_platform_probe(struct platform_device *pdev) 163 { 164 struct snd_soc_card *card; 165 struct sc8280xp_snd_data *data; 166 struct device *dev = &pdev->dev; 167 int ret; 168 169 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 170 if (!card) 171 return -ENOMEM; 172 card->owner = THIS_MODULE; 173 /* Allocate the private data */ 174 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 175 if (!data) 176 return -ENOMEM; 177 178 card->dev = dev; 179 dev_set_drvdata(dev, card); 180 snd_soc_card_set_drvdata(card, data); 181 ret = qcom_snd_parse_of(card); 182 if (ret) 183 return ret; 184 185 card->driver_name = of_device_get_match_data(dev); 186 sc8280xp_add_be_ops(card); 187 return devm_snd_soc_register_card(dev, card); 188 } 189 190 static const struct of_device_id snd_sc8280xp_dt_match[] = { 191 {.compatible = "qcom,qcm6490-idp-sndcard", "qcm6490"}, 192 {.compatible = "qcom,qcs6490-rb3gen2-sndcard", "qcs6490"}, 193 {.compatible = "qcom,qcs8275-sndcard", "qcs8300"}, 194 {.compatible = "qcom,qcs9075-sndcard", "qcs9075"}, 195 {.compatible = "qcom,qcs9100-sndcard", "qcs9100"}, 196 {.compatible = "qcom,sc8280xp-sndcard", "sc8280xp"}, 197 {.compatible = "qcom,sm8450-sndcard", "sm8450"}, 198 {.compatible = "qcom,sm8550-sndcard", "sm8550"}, 199 {.compatible = "qcom,sm8650-sndcard", "sm8650"}, 200 {.compatible = "qcom,sm8750-sndcard", "sm8750"}, 201 {} 202 }; 203 204 MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match); 205 206 static struct platform_driver snd_sc8280xp_driver = { 207 .probe = sc8280xp_platform_probe, 208 .driver = { 209 .name = "snd-sc8280xp", 210 .of_match_table = snd_sc8280xp_dt_match, 211 }, 212 }; 213 module_platform_driver(snd_sc8280xp_driver); 214 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); 215 MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver"); 216 MODULE_LICENSE("GPL"); 217