sound/soc/qcom/x1e80100.c

   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");