linux/sound/soc/intel/boards/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 "../common/sst-dsp.h"
  26#include "../haswell/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_card_jack_new(rtd->card, "Headset",
  84                SND_JACK_HEADSET | SND_JACK_BTN_0, &broadwell_headset,
  85                broadwell_headset_pins, ARRAY_SIZE(broadwell_headset_pins));
  86        if (ret)
  87                return ret;
  88
  89        rt286_mic_detect(codec, &broadwell_headset);
  90        return 0;
  91}
  92
  93
  94static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
  95                        struct snd_pcm_hw_params *params)
  96{
  97        struct snd_interval *rate = hw_param_interval(params,
  98                        SNDRV_PCM_HW_PARAM_RATE);
  99        struct snd_interval *channels = hw_param_interval(params,
 100                                                SNDRV_PCM_HW_PARAM_CHANNELS);
 101
 102        /* The ADSP will covert the FE rate to 48k, stereo */
 103        rate->min = rate->max = 48000;
 104        channels->min = channels->max = 2;
 105
 106        /* set SSP0 to 16 bit */
 107        params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 108        return 0;
 109}
 110
 111static int broadwell_rt286_hw_params(struct snd_pcm_substream *substream,
 112        struct snd_pcm_hw_params *params)
 113{
 114        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 115        struct snd_soc_dai *codec_dai = rtd->codec_dai;
 116        int ret;
 117
 118        ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000,
 119                SND_SOC_CLOCK_IN);
 120
 121        if (ret < 0) {
 122                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 123                return ret;
 124        }
 125
 126        return ret;
 127}
 128
 129static struct snd_soc_ops broadwell_rt286_ops = {
 130        .hw_params = broadwell_rt286_hw_params,
 131};
 132
 133static int broadwell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 134{
 135        struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 136        struct sst_hsw *broadwell = pdata->dsp;
 137        int ret;
 138
 139        /* Set ADSP SSP port settings */
 140        ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 141                SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 142                SST_HSW_DEVICE_CLOCK_MASTER, 9);
 143        if (ret < 0) {
 144                dev_err(rtd->dev, "error: failed to set device config\n");
 145                return ret;
 146        }
 147
 148        return 0;
 149}
 150
 151/* broadwell digital audio interface glue - connects codec <--> CPU */
 152static struct snd_soc_dai_link broadwell_rt286_dais[] = {
 153        /* Front End DAI links */
 154        {
 155                .name = "System PCM",
 156                .stream_name = "System Playback/Capture",
 157                .cpu_dai_name = "System Pin",
 158                .platform_name = "haswell-pcm-audio",
 159                .dynamic = 1,
 160                .codec_name = "snd-soc-dummy",
 161                .codec_dai_name = "snd-soc-dummy-dai",
 162                .init = broadwell_rtd_init,
 163                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 164                .dpcm_playback = 1,
 165                .dpcm_capture = 1,
 166        },
 167        {
 168                .name = "Offload0",
 169                .stream_name = "Offload0 Playback",
 170                .cpu_dai_name = "Offload0 Pin",
 171                .platform_name = "haswell-pcm-audio",
 172                .dynamic = 1,
 173                .codec_name = "snd-soc-dummy",
 174                .codec_dai_name = "snd-soc-dummy-dai",
 175                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 176                .dpcm_playback = 1,
 177        },
 178        {
 179                .name = "Offload1",
 180                .stream_name = "Offload1 Playback",
 181                .cpu_dai_name = "Offload1 Pin",
 182                .platform_name = "haswell-pcm-audio",
 183                .dynamic = 1,
 184                .codec_name = "snd-soc-dummy",
 185                .codec_dai_name = "snd-soc-dummy-dai",
 186                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 187                .dpcm_playback = 1,
 188        },
 189        {
 190                .name = "Loopback PCM",
 191                .stream_name = "Loopback",
 192                .cpu_dai_name = "Loopback Pin",
 193                .platform_name = "haswell-pcm-audio",
 194                .dynamic = 0,
 195                .codec_name = "snd-soc-dummy",
 196                .codec_dai_name = "snd-soc-dummy-dai",
 197                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 198                .dpcm_capture = 1,
 199        },
 200        /* Back End DAI links */
 201        {
 202                /* SSP0 - Codec */
 203                .name = "Codec",
 204                .be_id = 0,
 205                .cpu_dai_name = "snd-soc-dummy-dai",
 206                .platform_name = "snd-soc-dummy",
 207                .no_pcm = 1,
 208                .codec_name = "i2c-INT343A:00",
 209                .codec_dai_name = "rt286-aif1",
 210                .init = broadwell_rt286_codec_init,
 211                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 212                        SND_SOC_DAIFMT_CBS_CFS,
 213                .ignore_suspend = 1,
 214                .ignore_pmdown_time = 1,
 215                .be_hw_params_fixup = broadwell_ssp0_fixup,
 216                .ops = &broadwell_rt286_ops,
 217                .dpcm_playback = 1,
 218                .dpcm_capture = 1,
 219        },
 220};
 221
 222static int broadwell_suspend(struct snd_soc_card *card){
 223        struct snd_soc_codec *codec;
 224
 225        list_for_each_entry(codec, &card->codec_dev_list, card_list) {
 226                if (!strcmp(codec->component.name, "i2c-INT343A:00")) {
 227                        dev_dbg(codec->dev, "disabling jack detect before going to suspend.\n");
 228                        rt286_mic_detect(codec, NULL);
 229                        break;
 230                }
 231        }
 232        return 0;
 233}
 234
 235static int broadwell_resume(struct snd_soc_card *card){
 236        struct snd_soc_codec *codec;
 237
 238        list_for_each_entry(codec, &card->codec_dev_list, card_list) {
 239                if (!strcmp(codec->component.name, "i2c-INT343A:00")) {
 240                        dev_dbg(codec->dev, "enabling jack detect for resume.\n");
 241                        rt286_mic_detect(codec, &broadwell_headset);
 242                        break;
 243                }
 244        }
 245        return 0;
 246}
 247
 248/* broadwell audio machine driver for WPT + RT286S */
 249static struct snd_soc_card broadwell_rt286 = {
 250        .name = "broadwell-rt286",
 251        .owner = THIS_MODULE,
 252        .dai_link = broadwell_rt286_dais,
 253        .num_links = ARRAY_SIZE(broadwell_rt286_dais),
 254        .controls = broadwell_controls,
 255        .num_controls = ARRAY_SIZE(broadwell_controls),
 256        .dapm_widgets = broadwell_widgets,
 257        .num_dapm_widgets = ARRAY_SIZE(broadwell_widgets),
 258        .dapm_routes = broadwell_rt286_map,
 259        .num_dapm_routes = ARRAY_SIZE(broadwell_rt286_map),
 260        .fully_routed = true,
 261        .suspend_pre = broadwell_suspend,
 262        .resume_post = broadwell_resume,
 263};
 264
 265static int broadwell_audio_probe(struct platform_device *pdev)
 266{
 267        broadwell_rt286.dev = &pdev->dev;
 268
 269        return snd_soc_register_card(&broadwell_rt286);
 270}
 271
 272static int broadwell_audio_remove(struct platform_device *pdev)
 273{
 274        snd_soc_unregister_card(&broadwell_rt286);
 275        return 0;
 276}
 277
 278static struct platform_driver broadwell_audio = {
 279        .probe = broadwell_audio_probe,
 280        .remove = broadwell_audio_remove,
 281        .driver = {
 282                .name = "broadwell-audio",
 283        },
 284};
 285
 286module_platform_driver(broadwell_audio)
 287
 288/* Module information */
 289MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 290MODULE_DESCRIPTION("Intel SST Audio for WPT/Broadwell");
 291MODULE_LICENSE("GPL v2");
 292MODULE_ALIAS("platform:broadwell-audio");
 293