sound/soc/rockchip/rockchip_max98090.c

   1 /*
   2  * Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
   3  *
   4  * Copyright (c) 2014, 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 <sound/core.h>
  26 #include <sound/jack.h>
  27 #include <sound/pcm.h>
  28 #include <sound/pcm_params.h>
  29 #include <sound/soc.h>
  30
  31 #include "rockchip_i2s.h"
  32 #include "../codecs/ts3a227e.h"
  33
  34 #define DRV_NAME "rockchip-snd-max98090"
  35
  36 static struct snd_soc_jack headset_jack;
  37
  38 /* Headset jack detection DAPM pins */
  39 static struct snd_soc_jack_pin headset_jack_pins[] = {
  40         {
  41                 .pin = "Headphone",
  42                 .mask = SND_JACK_HEADPHONE,
  43         },
  44         {
  45                 .pin = "Headset Mic",
  46                 .mask = SND_JACK_MICROPHONE,
  47         },
  48
  49 };
  50
  51 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
  52         SND_SOC_DAPM_HP("Headphone", NULL),
  53         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  54         SND_SOC_DAPM_MIC("Int Mic", NULL),
  55         SND_SOC_DAPM_SPK("Speaker", NULL),
  56 };
  57
  58 static const struct snd_soc_dapm_route rk_audio_map[] = {
  59         {"IN34", NULL, "Headset Mic"},
  60         {"IN34", NULL, "MICBIAS"},
  61         {"Headset Mic", NULL, "MICBIAS"},
  62         {"DMICL", NULL, "Int Mic"},
  63         {"Headphone", NULL, "HPL"},
  64         {"Headphone", NULL, "HPR"},
  65         {"Speaker", NULL, "SPKL"},
  66         {"Speaker", NULL, "SPKR"},
  67 };
  68
  69 static const struct snd_kcontrol_new rk_mc_controls[] = {
  70         SOC_DAPM_PIN_SWITCH("Headphone"),
  71         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  72         SOC_DAPM_PIN_SWITCH("Int Mic"),
  73         SOC_DAPM_PIN_SWITCH("Speaker"),
  74 };
  75
  76 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
  77                              struct snd_pcm_hw_params *params)
  78 {
  79         int ret = 0;
  80         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  81         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  82         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  83         int mclk;
  84
  85         switch (params_rate(params)) {
  86         case 8000:
  87         case 16000:
  88         case 24000:
  89         case 32000:
  90         case 48000:
  91         case 64000:
  92         case 96000:
  93                 mclk = 12288000;
  94                 break;
  95         case 11025:
  96         case 22050:
  97         case 44100:
  98         case 88200:
  99                 mclk = 11289600;
 100                 break;
 101         default:
 102                 return -EINVAL;
 103         }
 104
 105         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
 106                                      SND_SOC_CLOCK_OUT);
 107         if (ret < 0) {
 108                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 109                 return ret;
 110         }
 111
 112         ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 113                                      SND_SOC_CLOCK_IN);
 114         if (ret < 0) {
 115                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 116                 return ret;
 117         }
 118
 119         return ret;
 120 }
 121
 122 static struct snd_soc_ops rk_aif1_ops = {
 123         .hw_params = rk_aif1_hw_params,
 124 };
 125
 126 static struct snd_soc_dai_link rk_dailink = {
 127         .name = "max98090",
 128         .stream_name = "Audio",
 129         .codec_dai_name = "HiFi",
 130         .ops = &rk_aif1_ops,
 131         /* set max98090 as slave */
 132         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 133                 SND_SOC_DAIFMT_CBS_CFS,
 134 };
 135
 136 static int rk_98090_headset_init(struct snd_soc_component *component);
 137
 138 static struct snd_soc_aux_dev rk_98090_headset_dev = {
 139         .name = "Headset Chip",
 140         .init = rk_98090_headset_init,
 141 };
 142
 143 static struct snd_soc_card snd_soc_card_rk = {
 144         .name = "ROCKCHIP-I2S",
 145         .owner = THIS_MODULE,
 146         .dai_link = &rk_dailink,
 147         .num_links = 1,
 148         .aux_dev = &rk_98090_headset_dev,
 149         .num_aux_devs = 1,
 150         .dapm_widgets = rk_dapm_widgets,
 151         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
 152         .dapm_routes = rk_audio_map,
 153         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
 154         .controls = rk_mc_controls,
 155         .num_controls = ARRAY_SIZE(rk_mc_controls),
 156 };
 157
 158 static int rk_98090_headset_init(struct snd_soc_component *component)
 159 {
 160         int ret;
 161
 162         /* Enable Headset and 4 Buttons Jack detection */
 163         ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack",
 164                                     SND_JACK_HEADSET |
 165                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 166                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
 167                                     &headset_jack,
 168                                     headset_jack_pins,
 169                                     ARRAY_SIZE(headset_jack_pins));
 170         if (ret)
 171                 return ret;
 172
 173         ret = ts3a227e_enable_jack_detect(component, &headset_jack);
 174
 175         return ret;
 176 }
 177
 178 static int snd_rk_mc_probe(struct platform_device *pdev)
 179 {
 180         int ret = 0;
 181         struct snd_soc_card *card = &snd_soc_card_rk;
 182         struct device_node *np = pdev->dev.of_node;
 183
 184         /* register the soc card */
 185         card->dev = &pdev->dev;
 186
 187         rk_dailink.codec_of_node = of_parse_phandle(np,
 188                         "rockchip,audio-codec", 0);
 189         if (!rk_dailink.codec_of_node) {
 190                 dev_err(&pdev->dev,
 191                         "Property 'rockchip,audio-codec' missing or invalid\n");
 192                 return -EINVAL;
 193         }
 194
 195         rk_dailink.cpu_of_node = of_parse_phandle(np,
 196                         "rockchip,i2s-controller", 0);
 197         if (!rk_dailink.cpu_of_node) {
 198                 dev_err(&pdev->dev,
 199                         "Property 'rockchip,i2s-controller' missing or invalid\n");
 200                 return -EINVAL;
 201         }
 202
 203         rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
 204
 205         rk_98090_headset_dev.codec_of_node = of_parse_phandle(np,
 206                         "rockchip,headset-codec", 0);
 207         if (!rk_98090_headset_dev.codec_of_node) {
 208                 dev_err(&pdev->dev,
 209                         "Property 'rockchip,headset-codec' missing/invalid\n");
 210                 return -EINVAL;
 211         }
 212
 213         ret = snd_soc_of_parse_card_name(card, "rockchip,model");
 214         if (ret) {
 215                 dev_err(&pdev->dev,
 216                         "Soc parse card name failed %d\n", ret);
 217                 return ret;
 218         }
 219
 220         ret = devm_snd_soc_register_card(&pdev->dev, card);
 221         if (ret) {
 222                 dev_err(&pdev->dev,
 223                         "Soc register card failed %d\n", ret);
 224                 return ret;
 225         }
 226
 227         return ret;
 228 }
 229
 230 static const struct of_device_id rockchip_max98090_of_match[] = {
 231         { .compatible = "rockchip,rockchip-audio-max98090", },
 232         {},
 233 };
 234
 235 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
 236
 237 static struct platform_driver snd_rk_mc_driver = {
 238         .probe = snd_rk_mc_probe,
 239         .driver = {
 240                 .name = DRV_NAME,
 241                 .pm = &snd_soc_pm_ops,
 242                 .of_match_table = rockchip_max98090_of_match,
 243         },
 244 };
 245
 246 module_platform_driver(snd_rk_mc_driver);
 247
 248 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
 249 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
 250 MODULE_LICENSE("GPL v2");
 251 MODULE_ALIAS("platform:" DRV_NAME);