sound/soc/rockchip/rockchip_rt5645.c

   1 /*
   2  * Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
   3  *
   4  * Copyright (c) 2015, ROCKCHIP CORPORATION.  All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include <linux/module.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/slab.h>
  23 #include <linux/gpio.h>
  24 #include <linux/of_gpio.h>
  25 #include <linux/delay.h>
  26 #include <sound/core.h>
  27 #include <sound/jack.h>
  28 #include <sound/pcm.h>
  29 #include <sound/pcm_params.h>
  30 #include <sound/soc.h>
  31 #include "rockchip_i2s.h"
  32
  33 #define DRV_NAME "rockchip-snd-rt5645"
  34
  35 static struct snd_soc_jack headset_jack;
  36
  37 /* Jack detect via rt5645 driver. */
  38 extern int rt5645_set_jack_detect(struct snd_soc_codec *codec,
  39         struct snd_soc_jack *hp_jack, struct snd_soc_jack *mic_jack,
  40         struct snd_soc_jack *btn_jack);
  41
  42 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
  43         SND_SOC_DAPM_HP("Headphones", NULL),
  44         SND_SOC_DAPM_SPK("Speakers", NULL),
  45         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  46         SND_SOC_DAPM_MIC("Int Mic", NULL),
  47 };
  48
  49 static const struct snd_soc_dapm_route rk_audio_map[] = {
  50         /* Input Lines */
  51         {"DMIC L2", NULL, "Int Mic"},
  52         {"DMIC R2", NULL, "Int Mic"},
  53         {"RECMIXL", NULL, "Headset Mic"},
  54         {"RECMIXR", NULL, "Headset Mic"},
  55
  56         /* Output Lines */
  57         {"Headphones", NULL, "HPOR"},
  58         {"Headphones", NULL, "HPOL"},
  59         {"Speakers", NULL, "SPOL"},
  60         {"Speakers", NULL, "SPOR"},
  61 };
  62
  63 static const struct snd_kcontrol_new rk_mc_controls[] = {
  64         SOC_DAPM_PIN_SWITCH("Headphones"),
  65         SOC_DAPM_PIN_SWITCH("Speakers"),
  66         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  67         SOC_DAPM_PIN_SWITCH("Int Mic"),
  68 };
  69
  70 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
  71                              struct snd_pcm_hw_params *params)
  72 {
  73         int ret = 0;
  74         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  75         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  76         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  77         int mclk;
  78
  79         switch (params_rate(params)) {
  80         case 8000:
  81         case 16000:
  82         case 48000:
  83         case 96000:
  84                 mclk = 12288000;
  85                 break;
  86         case 44100:
  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(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, NULL, 0);
 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(runtime->codec,
 127                                      &headset_jack,
 128                                      &headset_jack,
 129                                      &headset_jack);
 130 }
 131
 132 static struct snd_soc_ops rk_aif1_ops = {
 133         .hw_params = rk_aif1_hw_params,
 134 };
 135
 136 static struct snd_soc_dai_link rk_dailink = {
 137         .name = "rt5645",
 138         .stream_name = "rt5645 PCM",
 139         .codec_dai_name = "rt5645-aif1",
 140         .init = rk_init,
 141         .ops = &rk_aif1_ops,
 142         /* set rt5645 as slave */
 143         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 144                 SND_SOC_DAIFMT_CBS_CFS,
 145 };
 146
 147 static struct snd_soc_card snd_soc_card_rk = {
 148         .name = "I2S-RT5650",
 149         .owner = THIS_MODULE,
 150         .dai_link = &rk_dailink,
 151         .num_links = 1,
 152         .dapm_widgets = rk_dapm_widgets,
 153         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
 154         .dapm_routes = rk_audio_map,
 155         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
 156         .controls = rk_mc_controls,
 157         .num_controls = ARRAY_SIZE(rk_mc_controls),
 158 };
 159
 160 static int snd_rk_mc_probe(struct platform_device *pdev)
 161 {
 162         int ret = 0;
 163         struct snd_soc_card *card = &snd_soc_card_rk;
 164         struct device_node *np = pdev->dev.of_node;
 165
 166         /* register the soc card */
 167         card->dev = &pdev->dev;
 168
 169         rk_dailink.codec_of_node = of_parse_phandle(np,
 170                         "rockchip,audio-codec", 0);
 171         if (!rk_dailink.codec_of_node) {
 172                 dev_err(&pdev->dev,
 173                         "Property 'rockchip,audio-codec' missing or invalid\n");
 174                 return -EINVAL;
 175         }
 176
 177         rk_dailink.cpu_of_node = of_parse_phandle(np,
 178                         "rockchip,i2s-controller", 0);
 179         if (!rk_dailink.cpu_of_node) {
 180                 dev_err(&pdev->dev,
 181                         "Property 'rockchip,i2s-controller' missing or invalid\n");
 182                 return -EINVAL;
 183         }
 184
 185         rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
 186
 187         ret = snd_soc_of_parse_card_name(card, "rockchip,model");
 188         if (ret) {
 189                 dev_err(&pdev->dev,
 190                         "Soc parse card name failed %d\n", ret);
 191                 return ret;
 192         }
 193
 194         ret = devm_snd_soc_register_card(&pdev->dev, card);
 195         if (ret) {
 196                 dev_err(&pdev->dev,
 197                         "Soc register card failed %d\n", ret);
 198                 return ret;
 199         }
 200
 201         return ret;
 202 }
 203
 204 static const struct of_device_id rockchip_rt5645_of_match[] = {
 205         { .compatible = "rockchip,rockchip-audio-rt5645", },
 206         {},
 207 };
 208
 209 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
 210
 211 static struct platform_driver snd_rk_mc_driver = {
 212         .probe = snd_rk_mc_probe,
 213         .driver = {
 214                 .name = DRV_NAME,
 215                 .pm = &snd_soc_pm_ops,
 216                 .of_match_table = rockchip_rt5645_of_match,
 217         },
 218 };
 219
 220 module_platform_driver(snd_rk_mc_driver);
 221
 222 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
 223 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
 224 MODULE_LICENSE("GPL v2");
 225 MODULE_ALIAS("platform:" DRV_NAME);