sound/soc/rockchip/rockchip_rt5645.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
   4  *
   5  * Copyright (c) 2015, ROCKCHIP CORPORATION.  All rights reserved.
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/slab.h>
  11 #include <linux/gpio.h>
  12 #include <linux/of_gpio.h>
  13 #include <linux/delay.h>
  14 #include <sound/core.h>
  15 #include <sound/jack.h>
  16 #include <sound/pcm.h>
  17 #include <sound/pcm_params.h>
  18 #include <sound/soc.h>
  19 #include "rockchip_i2s.h"
  20 #include "../codecs/rt5645.h"
  21
  22 #define DRV_NAME "rockchip-snd-rt5645"
  23
  24 static struct snd_soc_jack headset_jack;
  25
  26 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
  27         SND_SOC_DAPM_HP("Headphones", NULL),
  28         SND_SOC_DAPM_SPK("Speakers", NULL),
  29         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  30         SND_SOC_DAPM_MIC("Int Mic", NULL),
  31 };
  32
  33 static const struct snd_soc_dapm_route rk_audio_map[] = {
  34         /* Input Lines */
  35         {"DMIC L2", NULL, "Int Mic"},
  36         {"DMIC R2", NULL, "Int Mic"},
  37         {"RECMIXL", NULL, "Headset Mic"},
  38         {"RECMIXR", NULL, "Headset Mic"},
  39
  40         /* Output Lines */
  41         {"Headphones", NULL, "HPOR"},
  42         {"Headphones", NULL, "HPOL"},
  43         {"Speakers", NULL, "SPOL"},
  44         {"Speakers", NULL, "SPOR"},
  45 };
  46
  47 static const struct snd_kcontrol_new rk_mc_controls[] = {
  48         SOC_DAPM_PIN_SWITCH("Headphones"),
  49         SOC_DAPM_PIN_SWITCH("Speakers"),
  50         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  51         SOC_DAPM_PIN_SWITCH("Int Mic"),
  52 };
  53
  54 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
  55                              struct snd_pcm_hw_params *params)
  56 {
  57         int ret = 0;
  58         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  59         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  60         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  61         int mclk;
  62
  63         switch (params_rate(params)) {
  64         case 8000:
  65         case 16000:
  66         case 24000:
  67         case 32000:
  68         case 48000:
  69         case 64000:
  70         case 96000:
  71                 mclk = 12288000;
  72                 break;
  73         case 11025:
  74         case 22050:
  75         case 44100:
  76         case 88200:
  77                 mclk = 11289600;
  78                 break;
  79         default:
  80                 return -EINVAL;
  81         }
  82
  83         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
  84                                      SND_SOC_CLOCK_OUT);
  85         if (ret < 0) {
  86                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
  87                 return ret;
  88         }
  89
  90         ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  91                                      SND_SOC_CLOCK_IN);
  92         if (ret < 0) {
  93                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
  94                 return ret;
  95         }
  96
  97         return ret;
  98 }
  99
 100 static int rk_init(struct snd_soc_pcm_runtime *runtime)
 101 {
 102         struct snd_soc_card *card = runtime->card;
 103         int ret;
 104
 105         /* Enable Headset and 4 Buttons Jack detection */
 106         ret = snd_soc_card_jack_new(card, "Headset Jack",
 107                                     SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 108                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 109                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
 110                                     &headset_jack, NULL, 0);
 111         if (ret) {
 112                 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
 113                 return ret;
 114         }
 115
 116         return rt5645_set_jack_detect(runtime->codec_dai->component,
 117                                      &headset_jack,
 118                                      &headset_jack,
 119                                      &headset_jack);
 120 }
 121
 122 static const struct snd_soc_ops rk_aif1_ops = {
 123         .hw_params = rk_aif1_hw_params,
 124 };
 125
 126 SND_SOC_DAILINK_DEFS(pcm,
 127         DAILINK_COMP_ARRAY(COMP_EMPTY()),
 128         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
 129         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 130
 131 static struct snd_soc_dai_link rk_dailink = {
 132         .name = "rt5645",
 133         .stream_name = "rt5645 PCM",
 134         .init = rk_init,
 135         .ops = &rk_aif1_ops,
 136         /* set rt5645 as slave */
 137         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 138                 SND_SOC_DAIFMT_CBS_CFS,
 139         SND_SOC_DAILINK_REG(pcm),
 140 };
 141
 142 static struct snd_soc_card snd_soc_card_rk = {
 143         .name = "I2S-RT5650",
 144         .owner = THIS_MODULE,
 145         .dai_link = &rk_dailink,
 146         .num_links = 1,
 147         .dapm_widgets = rk_dapm_widgets,
 148         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
 149         .dapm_routes = rk_audio_map,
 150         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
 151         .controls = rk_mc_controls,
 152         .num_controls = ARRAY_SIZE(rk_mc_controls),
 153 };
 154
 155 static int snd_rk_mc_probe(struct platform_device *pdev)
 156 {
 157         int ret = 0;
 158         struct snd_soc_card *card = &snd_soc_card_rk;
 159         struct device_node *np = pdev->dev.of_node;
 160
 161         /* register the soc card */
 162         card->dev = &pdev->dev;
 163
 164         rk_dailink.codecs->of_node = of_parse_phandle(np,
 165                         "rockchip,audio-codec", 0);
 166         if (!rk_dailink.codecs->of_node) {
 167                 dev_err(&pdev->dev,
 168                         "Property 'rockchip,audio-codec' missing or invalid\n");
 169                 return -EINVAL;
 170         }
 171
 172         rk_dailink.cpus->of_node = of_parse_phandle(np,
 173                         "rockchip,i2s-controller", 0);
 174         if (!rk_dailink.cpus->of_node) {
 175                 dev_err(&pdev->dev,
 176                         "Property 'rockchip,i2s-controller' missing or invalid\n");
 177                 ret = -EINVAL;
 178                 goto put_codec_of_node;
 179         }
 180
 181         rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
 182
 183         ret = snd_soc_of_parse_card_name(card, "rockchip,model");
 184         if (ret) {
 185                 dev_err(&pdev->dev,
 186                         "Soc parse card name failed %d\n", ret);
 187                 goto put_cpu_of_node;
 188         }
 189
 190         ret = devm_snd_soc_register_card(&pdev->dev, card);
 191         if (ret) {
 192                 dev_err(&pdev->dev,
 193                         "Soc register card failed %d\n", ret);
 194                 goto put_cpu_of_node;
 195         }
 196
 197         return ret;
 198
 199 put_cpu_of_node:
 200         of_node_put(rk_dailink.cpus->of_node);
 201         rk_dailink.cpus->of_node = NULL;
 202 put_codec_of_node:
 203         of_node_put(rk_dailink.codecs->of_node);
 204         rk_dailink.codecs->of_node = NULL;
 205
 206         return ret;
 207 }
 208
 209 static int snd_rk_mc_remove(struct platform_device *pdev)
 210 {
 211         of_node_put(rk_dailink.cpus->of_node);
 212         rk_dailink.cpus->of_node = NULL;
 213         of_node_put(rk_dailink.codecs->of_node);
 214         rk_dailink.codecs->of_node = NULL;
 215
 216         return 0;
 217 }
 218
 219 static const struct of_device_id rockchip_rt5645_of_match[] = {
 220         { .compatible = "rockchip,rockchip-audio-rt5645", },
 221         {},
 222 };
 223
 224 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
 225
 226 static struct platform_driver snd_rk_mc_driver = {
 227         .probe = snd_rk_mc_probe,
 228         .remove = snd_rk_mc_remove,
 229         .driver = {
 230                 .name = DRV_NAME,
 231                 .pm = &snd_soc_pm_ops,
 232                 .of_match_table = rockchip_rt5645_of_match,
 233         },
 234 };
 235
 236 module_platform_driver(snd_rk_mc_driver);
 237
 238 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
 239 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
 240 MODULE_LICENSE("GPL v2");
 241 MODULE_ALIAS("platform:" DRV_NAME);