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