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 <sound/pcm_params.h> 11 #include <linux/soundwire/sdw.h> 12 #include <sound/jack.h> 13 #include <linux/input-event-codes.h> 14 #include "qdsp6/q6afe.h" 15 #include "common.h" 16 #include "sdw.h" 17 18 struct sc8280xp_snd_data { 19 bool stream_prepared[AFE_PORT_MAX]; 20 struct snd_soc_card *card; 21 struct sdw_stream_runtime *sruntime[AFE_PORT_MAX]; 22 struct snd_soc_jack jack; 23 struct snd_soc_jack dp_jack[8]; 24 bool jack_setup; 25 }; 26 27 static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd) 28 { 29 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 30 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 31 struct snd_soc_card *card = rtd->card; 32 struct snd_soc_jack *dp_jack = NULL; 33 int dp_pcm_id = 0; 34 35 switch (cpu_dai->id) { 36 case PRIMARY_MI2S_RX...QUATERNARY_MI2S_TX: 37 case QUINARY_MI2S_RX...QUINARY_MI2S_TX: 38 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP); 39 break; 40 case WSA_CODEC_DMA_RX_0: 41 case WSA_CODEC_DMA_RX_1: 42 /* 43 * Set limit of -3 dB on Digital Volume and 0 dB on PA Volume 44 * to reduce the risk of speaker damage until we have active 45 * speaker protection in place. 46 */ 47 snd_soc_limit_volume(card, "WSA_RX0 Digital Volume", 81); 48 snd_soc_limit_volume(card, "WSA_RX1 Digital Volume", 81); 49 snd_soc_limit_volume(card, "SpkrLeft PA Volume", 17); 50 snd_soc_limit_volume(card, "SpkrRight PA Volume", 17); 51 break; 52 case DISPLAY_PORT_RX_0: 53 /* DISPLAY_PORT dai ids are not contiguous */ 54 dp_pcm_id = 0; 55 dp_jack = &data->dp_jack[dp_pcm_id]; 56 break; 57 case DISPLAY_PORT_RX_1 ... DISPLAY_PORT_RX_7: 58 dp_pcm_id = cpu_dai->id - DISPLAY_PORT_RX_1 + 1; 59 dp_jack = &data->dp_jack[dp_pcm_id]; 60 break; 61 default: 62 break; 63 } 64 65 if (dp_jack) 66 return qcom_snd_dp_jack_setup(rtd, dp_jack, dp_pcm_id); 67 68 return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); 69 } 70 71 static void sc8280xp_snd_shutdown(struct snd_pcm_substream *substream) 72 { 73 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 74 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 75 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 76 struct sdw_stream_runtime *sruntime = pdata->sruntime[cpu_dai->id]; 77 78 pdata->sruntime[cpu_dai->id] = NULL; 79 sdw_release_stream(sruntime); 80 } 81 82 static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 83 struct snd_pcm_hw_params *params) 84 { 85 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 86 struct snd_interval *rate = hw_param_interval(params, 87 SNDRV_PCM_HW_PARAM_RATE); 88 struct snd_interval *channels = hw_param_interval(params, 89 SNDRV_PCM_HW_PARAM_CHANNELS); 90 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 91 92 rate->min = rate->max = 48000; 93 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 94 channels->min = 2; 95 channels->max = 2; 96 switch (cpu_dai->id) { 97 case TX_CODEC_DMA_TX_0: 98 case TX_CODEC_DMA_TX_1: 99 case TX_CODEC_DMA_TX_2: 100 case TX_CODEC_DMA_TX_3: 101 channels->min = 1; 102 break; 103 default: 104 break; 105 } 106 107 108 return 0; 109 } 110 111 static int sc8280xp_snd_hw_params(struct snd_pcm_substream *substream, 112 struct snd_pcm_hw_params *params) 113 { 114 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 115 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 116 struct sc8280xp_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 117 118 return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]); 119 } 120 121 static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream) 122 { 123 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 124 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 125 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 126 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 127 128 return qcom_snd_sdw_prepare(substream, sruntime, 129 &data->stream_prepared[cpu_dai->id]); 130 } 131 132 static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream) 133 { 134 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 135 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 136 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 137 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 138 139 return qcom_snd_sdw_hw_free(substream, sruntime, 140 &data->stream_prepared[cpu_dai->id]); 141 } 142 143 static const struct snd_soc_ops sc8280xp_be_ops = { 144 .startup = qcom_snd_sdw_startup, 145 .shutdown = sc8280xp_snd_shutdown, 146 .hw_params = sc8280xp_snd_hw_params, 147 .hw_free = sc8280xp_snd_hw_free, 148 .prepare = sc8280xp_snd_prepare, 149 }; 150 151 static void sc8280xp_add_be_ops(struct snd_soc_card *card) 152 { 153 struct snd_soc_dai_link *link; 154 int i; 155 156 for_each_card_prelinks(card, i, link) { 157 if (link->no_pcm == 1) { 158 link->init = sc8280xp_snd_init; 159 link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup; 160 link->ops = &sc8280xp_be_ops; 161 } 162 } 163 } 164 165 static int sc8280xp_platform_probe(struct platform_device *pdev) 166 { 167 struct snd_soc_card *card; 168 struct sc8280xp_snd_data *data; 169 struct device *dev = &pdev->dev; 170 int ret; 171 172 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 173 if (!card) 174 return -ENOMEM; 175 card->owner = THIS_MODULE; 176 /* Allocate the private data */ 177 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 178 if (!data) 179 return -ENOMEM; 180 181 card->dev = dev; 182 dev_set_drvdata(dev, card); 183 snd_soc_card_set_drvdata(card, data); 184 ret = qcom_snd_parse_of(card); 185 if (ret) 186 return ret; 187 188 card->driver_name = of_device_get_match_data(dev); 189 sc8280xp_add_be_ops(card); 190 return devm_snd_soc_register_card(dev, card); 191 } 192 193 static const struct of_device_id snd_sc8280xp_dt_match[] = { 194 {.compatible = "qcom,qcm6490-idp-sndcard", "qcm6490"}, 195 {.compatible = "qcom,qcs6490-rb3gen2-sndcard", "qcs6490"}, 196 {.compatible = "qcom,qcs8275-sndcard", "qcs8300"}, 197 {.compatible = "qcom,qcs9075-sndcard", "sa8775p"}, 198 {.compatible = "qcom,qcs9100-sndcard", "sa8775p"}, 199 {.compatible = "qcom,sc8280xp-sndcard", "sc8280xp"}, 200 {.compatible = "qcom,sm8450-sndcard", "sm8450"}, 201 {.compatible = "qcom,sm8550-sndcard", "sm8550"}, 202 {.compatible = "qcom,sm8650-sndcard", "sm8650"}, 203 {.compatible = "qcom,sm8750-sndcard", "sm8750"}, 204 {} 205 }; 206 207 MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match); 208 209 static struct platform_driver snd_sc8280xp_driver = { 210 .probe = sc8280xp_platform_probe, 211 .driver = { 212 .name = "snd-sc8280xp", 213 .of_match_table = snd_sc8280xp_dt_match, 214 }, 215 }; 216 module_platform_driver(snd_sc8280xp_driver); 217 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); 218 MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver"); 219 MODULE_LICENSE("GPL"); 220