linux/sound/soc/rockchip/rockchip_max98090.c
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   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
  36static struct snd_soc_jack headset_jack;
  37
  38/* Headset jack detection DAPM pins */
  39static 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
  51static 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
  58static 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
  69static 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
  76static 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
 122static const struct snd_soc_ops rk_aif1_ops = {
 123        .hw_params = rk_aif1_hw_params,
 124};
 125
 126static 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
 136static int rk_98090_headset_init(struct snd_soc_component *component);
 137
 138static struct snd_soc_aux_dev rk_98090_headset_dev = {
 139        .name = "Headset Chip",
 140        .init = rk_98090_headset_init,
 141};
 142
 143static 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
 158static 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
 178static 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
 230static const struct of_device_id rockchip_max98090_of_match[] = {
 231        { .compatible = "rockchip,rockchip-audio-max98090", },
 232        {},
 233};
 234
 235MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
 236
 237static 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
 246module_platform_driver(snd_rk_mc_driver);
 247
 248MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
 249MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
 250MODULE_LICENSE("GPL v2");
 251MODULE_ALIAS("platform:" DRV_NAME);
 252