linux/sound/soc/intel/broadwell.c
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   1/*
   2 * Intel Broadwell Wildcatpoint SST Audio
   3 *
   4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License version
   8 * 2 as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 */
  16
  17#include <linux/module.h>
  18#include <linux/platform_device.h>
  19#include <sound/core.h>
  20#include <sound/pcm.h>
  21#include <sound/soc.h>
  22#include <sound/jack.h>
  23#include <sound/pcm_params.h>
  24
  25#include "sst-dsp.h"
  26#include "sst-haswell-ipc.h"
  27
  28#include "../codecs/rt286.h"
  29
  30static struct snd_soc_jack broadwell_headset;
  31/* Headset jack detection DAPM pins */
  32static struct snd_soc_jack_pin broadwell_headset_pins[] = {
  33        {
  34                .pin = "Mic Jack",
  35                .mask = SND_JACK_MICROPHONE,
  36        },
  37        {
  38                .pin = "Headphone Jack",
  39                .mask = SND_JACK_HEADPHONE,
  40        },
  41};
  42
  43static const struct snd_kcontrol_new broadwell_controls[] = {
  44        SOC_DAPM_PIN_SWITCH("Speaker"),
  45        SOC_DAPM_PIN_SWITCH("Headphone Jack"),
  46};
  47
  48static const struct snd_soc_dapm_widget broadwell_widgets[] = {
  49        SND_SOC_DAPM_HP("Headphone Jack", NULL),
  50        SND_SOC_DAPM_SPK("Speaker", NULL),
  51        SND_SOC_DAPM_MIC("Mic Jack", NULL),
  52        SND_SOC_DAPM_MIC("DMIC1", NULL),
  53        SND_SOC_DAPM_MIC("DMIC2", NULL),
  54        SND_SOC_DAPM_LINE("Line Jack", NULL),
  55};
  56
  57static const struct snd_soc_dapm_route broadwell_rt286_map[] = {
  58
  59        /* speaker */
  60        {"Speaker", NULL, "SPOR"},
  61        {"Speaker", NULL, "SPOL"},
  62
  63        /* HP jack connectors - unknown if we have jack deteck */
  64        {"Headphone Jack", NULL, "HPO Pin"},
  65
  66        /* other jacks */
  67        {"MIC1", NULL, "Mic Jack"},
  68        {"LINE1", NULL, "Line Jack"},
  69
  70        /* digital mics */
  71        {"DMIC1 Pin", NULL, "DMIC1"},
  72        {"DMIC2 Pin", NULL, "DMIC2"},
  73
  74        /* CODEC BE connections */
  75        {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  76        {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  77};
  78
  79static int broadwell_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
  80{
  81        struct snd_soc_codec *codec = rtd->codec;
  82        int ret = 0;
  83        ret = snd_soc_jack_new(codec, "Headset",
  84                SND_JACK_HEADSET | SND_JACK_BTN_0, &broadwell_headset);
  85
  86        if (ret)
  87                return ret;
  88
  89        ret = snd_soc_jack_add_pins(&broadwell_headset,
  90                ARRAY_SIZE(broadwell_headset_pins),
  91                broadwell_headset_pins);
  92        if (ret)
  93                return ret;
  94
  95        rt286_mic_detect(codec, &broadwell_headset);
  96        return 0;
  97}
  98
  99
 100static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 101                        struct snd_pcm_hw_params *params)
 102{
 103        struct snd_interval *rate = hw_param_interval(params,
 104                        SNDRV_PCM_HW_PARAM_RATE);
 105        struct snd_interval *channels = hw_param_interval(params,
 106                                                SNDRV_PCM_HW_PARAM_CHANNELS);
 107
 108        /* The ADSP will covert the FE rate to 48k, stereo */
 109        rate->min = rate->max = 48000;
 110        channels->min = channels->max = 2;
 111
 112        /* set SSP0 to 16 bit */
 113        snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
 114                                    SNDRV_PCM_HW_PARAM_FIRST_MASK],
 115                                    SNDRV_PCM_FORMAT_S16_LE);
 116        return 0;
 117}
 118
 119static int broadwell_rt286_hw_params(struct snd_pcm_substream *substream,
 120        struct snd_pcm_hw_params *params)
 121{
 122        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 123        struct snd_soc_dai *codec_dai = rtd->codec_dai;
 124        int ret;
 125
 126        ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000,
 127                SND_SOC_CLOCK_IN);
 128
 129        if (ret < 0) {
 130                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 131                return ret;
 132        }
 133
 134        return ret;
 135}
 136
 137static struct snd_soc_ops broadwell_rt286_ops = {
 138        .hw_params = broadwell_rt286_hw_params,
 139};
 140
 141static int broadwell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 142{
 143        struct snd_soc_codec *codec = rtd->codec;
 144        struct snd_soc_dapm_context *dapm = &codec->dapm;
 145        struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 146        struct sst_hsw *broadwell = pdata->dsp;
 147        int ret;
 148
 149        /* Set ADSP SSP port settings */
 150        ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 151                SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 152                SST_HSW_DEVICE_CLOCK_MASTER, 9);
 153        if (ret < 0) {
 154                dev_err(rtd->dev, "error: failed to set device config\n");
 155                return ret;
 156        }
 157
 158        /* always connected - check HP for jack detect */
 159        snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 160        snd_soc_dapm_enable_pin(dapm, "Speaker");
 161        snd_soc_dapm_enable_pin(dapm, "Mic Jack");
 162        snd_soc_dapm_enable_pin(dapm, "Line Jack");
 163        snd_soc_dapm_enable_pin(dapm, "DMIC1");
 164        snd_soc_dapm_enable_pin(dapm, "DMIC2");
 165
 166        return 0;
 167}
 168
 169/* broadwell digital audio interface glue - connects codec <--> CPU */
 170static struct snd_soc_dai_link broadwell_rt286_dais[] = {
 171        /* Front End DAI links */
 172        {
 173                .name = "System PCM",
 174                .stream_name = "System Playback/Capture",
 175                .cpu_dai_name = "System Pin",
 176                .platform_name = "haswell-pcm-audio",
 177                .dynamic = 1,
 178                .codec_name = "snd-soc-dummy",
 179                .codec_dai_name = "snd-soc-dummy-dai",
 180                .init = broadwell_rtd_init,
 181                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 182                .dpcm_playback = 1,
 183                .dpcm_capture = 1,
 184        },
 185        {
 186                .name = "Offload0",
 187                .stream_name = "Offload0 Playback",
 188                .cpu_dai_name = "Offload0 Pin",
 189                .platform_name = "haswell-pcm-audio",
 190                .dynamic = 1,
 191                .codec_name = "snd-soc-dummy",
 192                .codec_dai_name = "snd-soc-dummy-dai",
 193                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 194                .dpcm_playback = 1,
 195        },
 196        {
 197                .name = "Offload1",
 198                .stream_name = "Offload1 Playback",
 199                .cpu_dai_name = "Offload1 Pin",
 200                .platform_name = "haswell-pcm-audio",
 201                .dynamic = 1,
 202                .codec_name = "snd-soc-dummy",
 203                .codec_dai_name = "snd-soc-dummy-dai",
 204                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 205                .dpcm_playback = 1,
 206        },
 207        {
 208                .name = "Loopback PCM",
 209                .stream_name = "Loopback",
 210                .cpu_dai_name = "Loopback Pin",
 211                .platform_name = "haswell-pcm-audio",
 212                .dynamic = 0,
 213                .codec_name = "snd-soc-dummy",
 214                .codec_dai_name = "snd-soc-dummy-dai",
 215                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 216                .dpcm_capture = 1,
 217        },
 218        /* Back End DAI links */
 219        {
 220                /* SSP0 - Codec */
 221                .name = "Codec",
 222                .be_id = 0,
 223                .cpu_dai_name = "snd-soc-dummy-dai",
 224                .platform_name = "snd-soc-dummy",
 225                .no_pcm = 1,
 226                .codec_name = "i2c-INT343A:00",
 227                .codec_dai_name = "rt286-aif1",
 228                .init = broadwell_rt286_codec_init,
 229                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 230                        SND_SOC_DAIFMT_CBS_CFS,
 231                .ignore_suspend = 1,
 232                .ignore_pmdown_time = 1,
 233                .be_hw_params_fixup = broadwell_ssp0_fixup,
 234                .ops = &broadwell_rt286_ops,
 235                .dpcm_playback = 1,
 236                .dpcm_capture = 1,
 237        },
 238};
 239
 240/* broadwell audio machine driver for WPT + RT286S */
 241static struct snd_soc_card broadwell_rt286 = {
 242        .name = "broadwell-rt286",
 243        .owner = THIS_MODULE,
 244        .dai_link = broadwell_rt286_dais,
 245        .num_links = ARRAY_SIZE(broadwell_rt286_dais),
 246        .controls = broadwell_controls,
 247        .num_controls = ARRAY_SIZE(broadwell_controls),
 248        .dapm_widgets = broadwell_widgets,
 249        .num_dapm_widgets = ARRAY_SIZE(broadwell_widgets),
 250        .dapm_routes = broadwell_rt286_map,
 251        .num_dapm_routes = ARRAY_SIZE(broadwell_rt286_map),
 252        .fully_routed = true,
 253};
 254
 255static int broadwell_audio_probe(struct platform_device *pdev)
 256{
 257        broadwell_rt286.dev = &pdev->dev;
 258
 259        return snd_soc_register_card(&broadwell_rt286);
 260}
 261
 262static int broadwell_audio_remove(struct platform_device *pdev)
 263{
 264        snd_soc_unregister_card(&broadwell_rt286);
 265        return 0;
 266}
 267
 268static struct platform_driver broadwell_audio = {
 269        .probe = broadwell_audio_probe,
 270        .remove = broadwell_audio_remove,
 271        .driver = {
 272                .name = "broadwell-audio",
 273        },
 274};
 275
 276module_platform_driver(broadwell_audio)
 277
 278/* Module information */
 279MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 280MODULE_DESCRIPTION("Intel SST Audio for WPT/Broadwell");
 281MODULE_LICENSE("GPL v2");
 282MODULE_ALIAS("platform:broadwell-audio");
 283