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