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/delay.h>
  12 #include <sound/core.h>
  13 #include <sound/jack.h>
  14 #include <sound/pcm.h>
  15 #include <sound/pcm_params.h>
  16 #include <sound/soc.h>
  17 #include "rockchip_i2s.h"
  18 #include "../codecs/rt5645.h"
  19
  20 #define DRV_NAME "rockchip-snd-rt5645"
  21
  22 static struct snd_soc_jack headset_jack;
  23 static struct snd_soc_jack_pin headset_jack_pins[] = {
  24         {
  25                 .pin = "Headphones",
  26                 .mask = SND_JACK_HEADPHONE,
  27         },
  28         {
  29                 .pin = "Headset Mic",
  30                 .mask = SND_JACK_MICROPHONE,
  31         },
  32 };
  33
  34 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
  35         SND_SOC_DAPM_HP("Headphones", NULL),
  36         SND_SOC_DAPM_SPK("Speakers", NULL),
  37         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  38         SND_SOC_DAPM_MIC("Int Mic", NULL),
  39 };
  40
  41 static const struct snd_soc_dapm_route rk_audio_map[] = {
  42         /* Input Lines */
  43         {"DMIC L2", NULL, "Int Mic"},
  44         {"DMIC R2", NULL, "Int Mic"},
  45         {"RECMIXL", NULL, "Headset Mic"},
  46         {"RECMIXR", NULL, "Headset Mic"},
  47
  48         /* Output Lines */
  49         {"Headphones", NULL, "HPOR"},
  50         {"Headphones", NULL, "HPOL"},
  51         {"Speakers", NULL, "SPOL"},
  52         {"Speakers", NULL, "SPOR"},
  53 };
  54
  55 static const struct snd_kcontrol_new rk_mc_controls[] = {
  56         SOC_DAPM_PIN_SWITCH("Headphones"),
  57         SOC_DAPM_PIN_SWITCH("Speakers"),
  58         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  59         SOC_DAPM_PIN_SWITCH("Int Mic"),
  60 };
  61
  62 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
  63                              struct snd_pcm_hw_params *params)
  64 {
  65         int ret = 0;
  66         struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
  67         struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
  68         struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
  69         int mclk;
  70
  71         switch (params_rate(params)) {
  72         case 8000:
  73         case 16000:
  74         case 24000:
  75         case 32000:
  76         case 48000:
  77         case 64000:
  78         case 96000:
  79                 mclk = 12288000;
  80                 break;
  81         case 11025:
  82         case 22050:
  83         case 44100:
  84         case 88200:
  85                 mclk = 11289600;
  86                 break;
  87         default:
  88                 return -EINVAL;
  89         }
  90
  91         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
  92                                      SND_SOC_CLOCK_OUT);
  93         if (ret < 0) {
  94                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
  95                 return ret;
  96         }
  97
  98         ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  99                                      SND_SOC_CLOCK_IN);
 100         if (ret < 0) {
 101                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 102                 return ret;
 103         }
 104
 105         return ret;
 106 }
 107
 108 static int rk_init(struct snd_soc_pcm_runtime *runtime)
 109 {
 110         struct snd_soc_card *card = runtime->card;
 111         int ret;
 112
 113         /* Enable Headset and 4 Buttons Jack detection */
 114         ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
 115                                          SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 116                                          SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 117                                          SND_JACK_BTN_2 | SND_JACK_BTN_3,
 118                                          &headset_jack,
 119                                          headset_jack_pins,
 120                                          ARRAY_SIZE(headset_jack_pins));
 121         if (ret) {
 122                 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
 123                 return ret;
 124         }
 125
 126         return rt5645_set_jack_detect(snd_soc_rtd_to_codec(runtime, 0)->component,
 127                                      &headset_jack,
 128                                      &headset_jack,
 129                                      &headset_jack);
 130 }
 131
 132 static const struct snd_soc_ops rk_aif1_ops = {
 133         .hw_params = rk_aif1_hw_params,
 134 };
 135
 136 SND_SOC_DAILINK_DEFS(pcm,
 137         DAILINK_COMP_ARRAY(COMP_EMPTY()),
 138         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
 139         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 140
 141 static struct snd_soc_dai_link rk_dailink = {
 142         .name = "rt5645",
 143         .stream_name = "rt5645 PCM",
 144         .init = rk_init,
 145         .ops = &rk_aif1_ops,
 146         /* set rt5645 as slave */
 147         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 148                 SND_SOC_DAIFMT_CBS_CFS,
 149         SND_SOC_DAILINK_REG(pcm),
 150 };
 151
 152 static struct snd_soc_card snd_soc_card_rk = {
 153         .name = "I2S-RT5650",
 154         .owner = THIS_MODULE,
 155         .dai_link = &rk_dailink,
 156         .num_links = 1,
 157         .dapm_widgets = rk_dapm_widgets,
 158         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
 159         .dapm_routes = rk_audio_map,
 160         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
 161         .controls = rk_mc_controls,
 162         .num_controls = ARRAY_SIZE(rk_mc_controls),
 163 };
 164
 165 static int snd_rk_mc_probe(struct platform_device *pdev)
 166 {
 167         int ret = 0;
 168         struct snd_soc_card *card = &snd_soc_card_rk;
 169         struct device_node *np = pdev->dev.of_node;
 170
 171         /* register the soc card */
 172         card->dev = &pdev->dev;
 173
 174         rk_dailink.codecs->of_node = of_parse_phandle(np,
 175                         "rockchip,audio-codec", 0);
 176         if (!rk_dailink.codecs->of_node) {
 177                 dev_err(&pdev->dev,
 178                         "Property 'rockchip,audio-codec' missing or invalid\n");
 179                 return -EINVAL;
 180         }
 181
 182         rk_dailink.cpus->of_node = of_parse_phandle(np,
 183                         "rockchip,i2s-controller", 0);
 184         if (!rk_dailink.cpus->of_node) {
 185                 dev_err(&pdev->dev,
 186                         "Property 'rockchip,i2s-controller' missing or invalid\n");
 187                 ret = -EINVAL;
 188                 goto put_codec_of_node;
 189         }
 190
 191         rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
 192
 193         ret = snd_soc_of_parse_card_name(card, "rockchip,model");
 194         if (ret) {
 195                 dev_err(&pdev->dev,
 196                         "Soc parse card name failed %d\n", ret);
 197                 goto put_cpu_of_node;
 198         }
 199
 200         ret = devm_snd_soc_register_card(&pdev->dev, card);
 201         if (ret) {
 202                 dev_err(&pdev->dev,
 203                         "Soc register card failed %d\n", ret);
 204                 goto put_cpu_of_node;
 205         }
 206
 207         return ret;
 208
 209 put_cpu_of_node:
 210         of_node_put(rk_dailink.cpus->of_node);
 211         rk_dailink.cpus->of_node = NULL;
 212 put_codec_of_node:
 213         of_node_put(rk_dailink.codecs->of_node);
 214         rk_dailink.codecs->of_node = NULL;
 215
 216         return ret;
 217 }
 218
 219 static void snd_rk_mc_remove(struct platform_device *pdev)
 220 {
 221         of_node_put(rk_dailink.cpus->of_node);
 222         rk_dailink.cpus->of_node = NULL;
 223         of_node_put(rk_dailink.codecs->of_node);
 224         rk_dailink.codecs->of_node = NULL;
 225 }
 226
 227 static const struct of_device_id rockchip_rt5645_of_match[] = {
 228         { .compatible = "rockchip,rockchip-audio-rt5645", },
 229         {},
 230 };
 231
 232 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
 233
 234 static struct platform_driver snd_rk_mc_driver = {
 235         .probe = snd_rk_mc_probe,
 236         .remove = snd_rk_mc_remove,
 237         .driver = {
 238                 .name = DRV_NAME,
 239                 .pm = &snd_soc_pm_ops,
 240                 .of_match_table = rockchip_rt5645_of_match,
 241         },
 242 };
 243
 244 module_platform_driver(snd_rk_mc_driver);
 245
 246 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
 247 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
 248 MODULE_LICENSE("GPL v2");
 249 MODULE_ALIAS("platform:" DRV_NAME);