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 24000:
  83         case 32000:
  84         case 48000:
  85         case 64000:
  86         case 96000:
  87                 mclk = 12288000;
  88                 break;
  89         case 11025:
  90         case 22050:
  91         case 44100:
  92         case 88200:
  93                 mclk = 11289600;
  94                 break;
  95         default:
  96                 return -EINVAL;
  97         }
  98
  99         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
 100                                      SND_SOC_CLOCK_OUT);
 101         if (ret < 0) {
 102                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 103                 return ret;
 104         }
 105
 106         ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 107                                      SND_SOC_CLOCK_IN);
 108         if (ret < 0) {
 109                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 110                 return ret;
 111         }
 112
 113         return ret;
 114 }
 115
 116 static int rk_init(struct snd_soc_pcm_runtime *runtime)
 117 {
 118         struct snd_soc_card *card = runtime->card;
 119         int ret;
 120
 121         /* Enable Headset and 4 Buttons Jack detection */
 122         ret = snd_soc_card_jack_new(card, "Headset Jack",
 123                                     SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 124                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 125                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
 126                                     &headset_jack, NULL, 0);
 127         if (ret) {
 128                 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
 129                 return ret;
 130         }
 131
 132         return rt5645_set_jack_detect(runtime->codec,
 133                                      &headset_jack,
 134                                      &headset_jack,
 135                                      &headset_jack);
 136 }
 137
 138 static struct snd_soc_ops rk_aif1_ops = {
 139         .hw_params = rk_aif1_hw_params,
 140 };
 141
 142 static struct snd_soc_dai_link rk_dailink = {
 143         .name = "rt5645",
 144         .stream_name = "rt5645 PCM",
 145         .codec_dai_name = "rt5645-aif1",
 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 };
 152
 153 static struct snd_soc_card snd_soc_card_rk = {
 154         .name = "I2S-RT5650",
 155         .owner = THIS_MODULE,
 156         .dai_link = &rk_dailink,
 157         .num_links = 1,
 158         .dapm_widgets = rk_dapm_widgets,
 159         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
 160         .dapm_routes = rk_audio_map,
 161         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
 162         .controls = rk_mc_controls,
 163         .num_controls = ARRAY_SIZE(rk_mc_controls),
 164 };
 165
 166 static int snd_rk_mc_probe(struct platform_device *pdev)
 167 {
 168         int ret = 0;
 169         struct snd_soc_card *card = &snd_soc_card_rk;
 170         struct device_node *np = pdev->dev.of_node;
 171
 172         /* register the soc card */
 173         card->dev = &pdev->dev;
 174
 175         rk_dailink.codec_of_node = of_parse_phandle(np,
 176                         "rockchip,audio-codec", 0);
 177         if (!rk_dailink.codec_of_node) {
 178                 dev_err(&pdev->dev,
 179                         "Property 'rockchip,audio-codec' missing or invalid\n");
 180                 return -EINVAL;
 181         }
 182
 183         rk_dailink.cpu_of_node = of_parse_phandle(np,
 184                         "rockchip,i2s-controller", 0);
 185         if (!rk_dailink.cpu_of_node) {
 186                 dev_err(&pdev->dev,
 187                         "Property 'rockchip,i2s-controller' missing or invalid\n");
 188                 return -EINVAL;
 189         }
 190
 191         rk_dailink.platform_of_node = rk_dailink.cpu_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                 return ret;
 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                 return ret;
 205         }
 206
 207         return ret;
 208 }
 209
 210 static const struct of_device_id rockchip_rt5645_of_match[] = {
 211         { .compatible = "rockchip,rockchip-audio-rt5645", },
 212         {},
 213 };
 214
 215 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
 216
 217 static struct platform_driver snd_rk_mc_driver = {
 218         .probe = snd_rk_mc_probe,
 219         .driver = {
 220                 .name = DRV_NAME,
 221                 .pm = &snd_soc_pm_ops,
 222                 .of_match_table = rockchip_rt5645_of_match,
 223         },
 224 };
 225
 226 module_platform_driver(snd_rk_mc_driver);
 227
 228 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
 229 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
 230 MODULE_LICENSE("GPL v2");
 231 MODULE_ALIAS("platform:" DRV_NAME);