LXR linux/sound/soc/intel/boards/haswell.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Intel Haswell Lynxpoint SST Audio
   4 *
   5 * Copyright (C) 2013, Intel Corporation. All rights reserved.
   6 */
   7
   8#include <linux/module.h>
   9#include <linux/platform_device.h>
  10#include <sound/core.h>
  11#include <sound/pcm.h>
  12#include <sound/soc.h>
  13#include <sound/soc-acpi.h>
  14#include <sound/pcm_params.h>
  15
  16#include "../../codecs/rt5640.h"
  17
  18/* Haswell ULT platforms have a Headphone and Mic jack */
  19static const struct snd_soc_dapm_widget haswell_widgets[] = {
  20        SND_SOC_DAPM_HP("Headphones", NULL),
  21        SND_SOC_DAPM_MIC("Mic", NULL),
  22};
  23
  24static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
  25
  26        {"Headphones", NULL, "HPOR"},
  27        {"Headphones", NULL, "HPOL"},
  28        {"IN2P", NULL, "Mic"},
  29
  30        /* CODEC BE connections */
  31        {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  32        {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  33};
  34
  35static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
  36                        struct snd_pcm_hw_params *params)
  37{
  38        struct snd_interval *rate = hw_param_interval(params,
  39                        SNDRV_PCM_HW_PARAM_RATE);
  40        struct snd_interval *channels = hw_param_interval(params,
  41                                                SNDRV_PCM_HW_PARAM_CHANNELS);
  42
  43        /* The ADSP will covert the FE rate to 48k, stereo */
  44        rate->min = rate->max = 48000;
  45        channels->min = channels->max = 2;
  46
  47        /* set SSP0 to 16 bit */
  48        params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
  49        return 0;
  50}
  51
  52static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
  53        struct snd_pcm_hw_params *params)
  54{
  55        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  56        struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  57        int ret;
  58
  59        ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
  60                SND_SOC_CLOCK_IN);
  61
  62        if (ret < 0) {
  63                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
  64                return ret;
  65        }
  66
  67        /* set correct codec filter for DAI format and clock config */
  68        snd_soc_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);
  69
  70        return ret;
  71}
  72
  73static const struct snd_soc_ops haswell_rt5640_ops = {
  74        .hw_params = haswell_rt5640_hw_params,
  75};
  76
  77SND_SOC_DAILINK_DEF(dummy,
  78        DAILINK_COMP_ARRAY(COMP_DUMMY()));
  79
  80SND_SOC_DAILINK_DEF(system,
  81        DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
  82
  83SND_SOC_DAILINK_DEF(offload0,
  84        DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
  85
  86SND_SOC_DAILINK_DEF(offload1,
  87        DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
  88
  89SND_SOC_DAILINK_DEF(loopback,
  90        DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
  91
  92SND_SOC_DAILINK_DEF(codec,
  93        DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT33CA:00", "rt5640-aif1")));
  94
  95SND_SOC_DAILINK_DEF(platform,
  96        DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
  97
  98SND_SOC_DAILINK_DEF(ssp0_port,
  99            DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
 100
 101static struct snd_soc_dai_link haswell_rt5640_dais[] = {
 102        /* Front End DAI links */
 103        {
 104                .name = "System",
 105                .stream_name = "System Playback/Capture",
 106                .nonatomic = 1,
 107                .dynamic = 1,
 108                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 109                .dpcm_playback = 1,
 110                .dpcm_capture = 1,
 111                SND_SOC_DAILINK_REG(system, dummy, platform),
 112        },
 113        {
 114                .name = "Offload0",
 115                .stream_name = "Offload0 Playback",
 116                .nonatomic = 1,
 117                .dynamic = 1,
 118                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 119                .dpcm_playback = 1,
 120                SND_SOC_DAILINK_REG(offload0, dummy, platform),
 121        },
 122        {
 123                .name = "Offload1",
 124                .stream_name = "Offload1 Playback",
 125                .nonatomic = 1,
 126                .dynamic = 1,
 127                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 128                .dpcm_playback = 1,
 129                SND_SOC_DAILINK_REG(offload1, dummy, platform),
 130        },
 131        {
 132                .name = "Loopback",
 133                .stream_name = "Loopback",
 134                .nonatomic = 1,
 135                .dynamic = 1,
 136                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 137                .dpcm_capture = 1,
 138                SND_SOC_DAILINK_REG(loopback, dummy, platform),
 139        },
 140
 141        /* Back End DAI links */
 142        {
 143                /* SSP0 - Codec */
 144                .name = "Codec",
 145                .id = 0,
 146                .no_pcm = 1,
 147                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 148                        SND_SOC_DAIFMT_CBS_CFS,
 149                .ignore_pmdown_time = 1,
 150                .be_hw_params_fixup = haswell_ssp0_fixup,
 151                .ops = &haswell_rt5640_ops,
 152                .dpcm_playback = 1,
 153                .dpcm_capture = 1,
 154                SND_SOC_DAILINK_REG(ssp0_port, codec, platform),
 155        },
 156};
 157
 158/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
 159static struct snd_soc_card haswell_rt5640 = {
 160        .name = "haswell-rt5640",
 161        .owner = THIS_MODULE,
 162        .dai_link = haswell_rt5640_dais,
 163        .num_links = ARRAY_SIZE(haswell_rt5640_dais),
 164        .dapm_widgets = haswell_widgets,
 165        .num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
 166        .dapm_routes = haswell_rt5640_map,
 167        .num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
 168        .fully_routed = true,
 169};
 170
 171static int haswell_audio_probe(struct platform_device *pdev)
 172{
 173        struct snd_soc_acpi_mach *mach;
 174        int ret;
 175
 176        haswell_rt5640.dev = &pdev->dev;
 177
 178        /* override plaform name, if required */
 179        mach = pdev->dev.platform_data;
 180        ret = snd_soc_fixup_dai_links_platform_name(&haswell_rt5640,
 181                                                    mach->mach_params.platform);
 182        if (ret)
 183                return ret;
 184
 185        return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
 186}
 187
 188static struct platform_driver haswell_audio = {
 189        .probe = haswell_audio_probe,
 190        .driver = {
 191                .name = "haswell-audio",
 192                .pm = &snd_soc_pm_ops,
 193        },
 194};
 195
 196module_platform_driver(haswell_audio)
 197
 198/* Module information */
 199MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 200MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
 201MODULE_LICENSE("GPL v2");
 202MODULE_ALIAS("platform:haswell-audio");
 203