1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2023, Linaro Limited 3 4 #include <dt-bindings/sound/qcom,q6afe.h> 5 #include <linux/module.h> 6 #include <linux/platform_device.h> 7 #include <linux/soundwire/sdw.h> 8 #include <sound/pcm.h> 9 #include <sound/jack.h> 10 #include <sound/soc.h> 11 #include <sound/soc-dapm.h> 12 13 #include "common.h" 14 #include "qdsp6/q6afe.h" 15 #include "sdw.h" 16 17 struct x1e80100_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 bool jack_setup; 23 }; 24 25 static int x1e80100_snd_init(struct snd_soc_pcm_runtime *rtd) 26 { 27 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 28 29 return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); 30 } 31 32 static void x1e80100_snd_shutdown(struct snd_pcm_substream *substream) 33 { 34 struct snd_soc_pcm_runtime *rtd = substream->private_data; 35 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 36 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 37 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 38 39 data->sruntime[cpu_dai->id] = NULL; 40 sdw_release_stream(sruntime); 41 } 42 43 static int x1e80100_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 44 struct snd_pcm_hw_params *params) 45 { 46 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 47 struct snd_interval *rate = hw_param_interval(params, 48 SNDRV_PCM_HW_PARAM_RATE); 49 struct snd_interval *channels = hw_param_interval(params, 50 SNDRV_PCM_HW_PARAM_CHANNELS); 51 52 rate->min = rate->max = 48000; 53 switch (cpu_dai->id) { 54 case TX_CODEC_DMA_TX_0: 55 case TX_CODEC_DMA_TX_1: 56 case TX_CODEC_DMA_TX_2: 57 case TX_CODEC_DMA_TX_3: 58 channels->min = 1; 59 break; 60 default: 61 break; 62 } 63 64 return 0; 65 } 66 67 static int x1e80100_snd_hw_params(struct snd_pcm_substream *substream, 68 struct snd_pcm_hw_params *params) 69 { 70 struct snd_soc_pcm_runtime *rtd = substream->private_data; 71 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 72 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 73 74 return qcom_snd_sdw_hw_params(substream, params, &data->sruntime[cpu_dai->id]); 75 } 76 77 static int x1e80100_snd_prepare(struct snd_pcm_substream *substream) 78 { 79 struct snd_soc_pcm_runtime *rtd = substream->private_data; 80 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 81 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 82 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 83 84 return qcom_snd_sdw_prepare(substream, sruntime, 85 &data->stream_prepared[cpu_dai->id]); 86 } 87 88 static int x1e80100_snd_hw_free(struct snd_pcm_substream *substream) 89 { 90 struct snd_soc_pcm_runtime *rtd = substream->private_data; 91 struct x1e80100_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 92 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 93 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 94 95 return qcom_snd_sdw_hw_free(substream, sruntime, 96 &data->stream_prepared[cpu_dai->id]); 97 } 98 99 static const struct snd_soc_ops x1e80100_be_ops = { 100 .startup = qcom_snd_sdw_startup, 101 .shutdown = x1e80100_snd_shutdown, 102 .hw_params = x1e80100_snd_hw_params, 103 .hw_free = x1e80100_snd_hw_free, 104 .prepare = x1e80100_snd_prepare, 105 }; 106 107 static void x1e80100_add_be_ops(struct snd_soc_card *card) 108 { 109 struct snd_soc_dai_link *link; 110 int i; 111 112 for_each_card_prelinks(card, i, link) { 113 if (link->no_pcm == 1) { 114 link->init = x1e80100_snd_init; 115 link->be_hw_params_fixup = x1e80100_be_hw_params_fixup; 116 link->ops = &x1e80100_be_ops; 117 } 118 } 119 } 120 121 static int x1e80100_platform_probe(struct platform_device *pdev) 122 { 123 struct snd_soc_card *card; 124 struct x1e80100_snd_data *data; 125 struct device *dev = &pdev->dev; 126 int ret; 127 128 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 129 if (!card) 130 return -ENOMEM; 131 /* Allocate the private data */ 132 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 133 if (!data) 134 return -ENOMEM; 135 136 card->owner = THIS_MODULE; 137 card->dev = dev; 138 dev_set_drvdata(dev, card); 139 snd_soc_card_set_drvdata(card, data); 140 141 ret = qcom_snd_parse_of(card); 142 if (ret) 143 return ret; 144 145 card->driver_name = "x1e80100"; 146 x1e80100_add_be_ops(card); 147 148 return devm_snd_soc_register_card(dev, card); 149 } 150 151 static const struct of_device_id snd_x1e80100_dt_match[] = { 152 { .compatible = "qcom,x1e80100-sndcard", }, 153 {} 154 }; 155 MODULE_DEVICE_TABLE(of, snd_x1e80100_dt_match); 156 157 static struct platform_driver snd_x1e80100_driver = { 158 .probe = x1e80100_platform_probe, 159 .driver = { 160 .name = "snd-x1e80100", 161 .of_match_table = snd_x1e80100_dt_match, 162 }, 163 }; 164 module_platform_driver(snd_x1e80100_driver); 165 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); 166 MODULE_AUTHOR("Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>"); 167 MODULE_DESCRIPTION("Qualcomm X1E80100 ASoC Machine Driver"); 168 MODULE_LICENSE("GPL"); 169