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 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 int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 71 struct snd_pcm_hw_params *params) 72 { 73 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 74 struct snd_interval *rate = hw_param_interval(params, 75 SNDRV_PCM_HW_PARAM_RATE); 76 struct snd_interval *channels = hw_param_interval(params, 77 SNDRV_PCM_HW_PARAM_CHANNELS); 78 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 79 80 rate->min = rate->max = 48000; 81 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 82 channels->min = 2; 83 channels->max = 2; 84 switch (cpu_dai->id) { 85 case TX_CODEC_DMA_TX_0: 86 case TX_CODEC_DMA_TX_1: 87 case TX_CODEC_DMA_TX_2: 88 case TX_CODEC_DMA_TX_3: 89 channels->min = 1; 90 break; 91 default: 92 break; 93 } 94 95 96 return 0; 97 } 98 99 static int sc8280xp_snd_prepare(struct snd_pcm_substream *substream) 100 { 101 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 102 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 103 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 104 105 return qcom_snd_sdw_prepare(substream, &data->stream_prepared[cpu_dai->id]); 106 } 107 108 static int sc8280xp_snd_hw_free(struct snd_pcm_substream *substream) 109 { 110 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 111 struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 112 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 113 114 return qcom_snd_sdw_hw_free(substream, &data->stream_prepared[cpu_dai->id]); 115 } 116 117 static const struct snd_soc_ops sc8280xp_be_ops = { 118 .startup = qcom_snd_sdw_startup, 119 .shutdown = qcom_snd_sdw_shutdown, 120 .hw_free = sc8280xp_snd_hw_free, 121 .prepare = sc8280xp_snd_prepare, 122 }; 123 124 static void sc8280xp_add_be_ops(struct snd_soc_card *card) 125 { 126 struct snd_soc_dai_link *link; 127 int i; 128 129 for_each_card_prelinks(card, i, link) { 130 if (link->no_pcm == 1) { 131 link->init = sc8280xp_snd_init; 132 link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup; 133 link->ops = &sc8280xp_be_ops; 134 } 135 } 136 } 137 138 static int sc8280xp_platform_probe(struct platform_device *pdev) 139 { 140 struct snd_soc_card *card; 141 struct sc8280xp_snd_data *data; 142 struct device *dev = &pdev->dev; 143 int ret; 144 145 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 146 if (!card) 147 return -ENOMEM; 148 card->owner = THIS_MODULE; 149 /* Allocate the private data */ 150 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 151 if (!data) 152 return -ENOMEM; 153 154 card->dev = dev; 155 dev_set_drvdata(dev, card); 156 snd_soc_card_set_drvdata(card, data); 157 ret = qcom_snd_parse_of(card); 158 if (ret) 159 return ret; 160 161 card->driver_name = of_device_get_match_data(dev); 162 sc8280xp_add_be_ops(card); 163 return devm_snd_soc_register_card(dev, card); 164 } 165 166 static const struct of_device_id snd_sc8280xp_dt_match[] = { 167 {.compatible = "qcom,kaanapali-sndcard", "kaanapali"}, 168 {.compatible = "qcom,qcm6490-idp-sndcard", "qcm6490"}, 169 {.compatible = "qcom,qcs615-sndcard", "qcs615"}, 170 {.compatible = "qcom,qcs6490-rb3gen2-sndcard", "qcs6490"}, 171 {.compatible = "qcom,qcs8275-sndcard", "qcs8300"}, 172 {.compatible = "qcom,qcs9075-sndcard", "sa8775p"}, 173 {.compatible = "qcom,qcs9100-sndcard", "sa8775p"}, 174 {.compatible = "qcom,sc8280xp-sndcard", "sc8280xp"}, 175 {.compatible = "qcom,sm8450-sndcard", "sm8450"}, 176 {.compatible = "qcom,sm8550-sndcard", "sm8550"}, 177 {.compatible = "qcom,sm8650-sndcard", "sm8650"}, 178 {.compatible = "qcom,sm8750-sndcard", "sm8750"}, 179 {} 180 }; 181 182 MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match); 183 184 static struct platform_driver snd_sc8280xp_driver = { 185 .probe = sc8280xp_platform_probe, 186 .driver = { 187 .name = "snd-sc8280xp", 188 .of_match_table = snd_sc8280xp_dt_match, 189 }, 190 }; 191 module_platform_driver(snd_sc8280xp_driver); 192 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); 193 MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver"); 194 MODULE_LICENSE("GPL"); 195