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

   1/*
   2 * Intel Haswell Lynxpoint 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/pcm_params.h>
  23
  24#include "../common/sst-dsp.h"
  25#include "../haswell/sst-haswell-ipc.h"
  26
  27#include "../../codecs/rt5640.h"
  28
  29/* Haswell ULT platforms have a Headphone and Mic jack */
  30static const struct snd_soc_dapm_widget haswell_widgets[] = {
  31        SND_SOC_DAPM_HP("Headphones", NULL),
  32        SND_SOC_DAPM_MIC("Mic", NULL),
  33};
  34
  35static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
  36
  37        {"Headphones", NULL, "HPOR"},
  38        {"Headphones", NULL, "HPOL"},
  39        {"IN2P", NULL, "Mic"},
  40
  41        /* CODEC BE connections */
  42        {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  43        {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  44};
  45
  46static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
  47                        struct snd_pcm_hw_params *params)
  48{
  49        struct snd_interval *rate = hw_param_interval(params,
  50                        SNDRV_PCM_HW_PARAM_RATE);
  51        struct snd_interval *channels = hw_param_interval(params,
  52                                                SNDRV_PCM_HW_PARAM_CHANNELS);
  53
  54        /* The ADSP will covert the FE rate to 48k, stereo */
  55        rate->min = rate->max = 48000;
  56        channels->min = channels->max = 2;
  57
  58        /* set SSP0 to 16 bit */
  59        params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
  60        return 0;
  61}
  62
  63static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
  64        struct snd_pcm_hw_params *params)
  65{
  66        struct snd_soc_pcm_runtime *rtd = substream->private_data;
  67        struct snd_soc_dai *codec_dai = rtd->codec_dai;
  68        int ret;
  69
  70        ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
  71                SND_SOC_CLOCK_IN);
  72
  73        if (ret < 0) {
  74                dev_err(rtd->dev, "can't set codec sysclk configuration\n");
  75                return ret;
  76        }
  77
  78        /* set correct codec filter for DAI format and clock config */
  79        snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);
  80
  81        return ret;
  82}
  83
  84static struct snd_soc_ops haswell_rt5640_ops = {
  85        .hw_params = haswell_rt5640_hw_params,
  86};
  87
  88static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
  89{
  90        struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
  91        struct sst_hsw *haswell = pdata->dsp;
  92        int ret;
  93
  94        /* Set ADSP SSP port settings */
  95        ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
  96                SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
  97                SST_HSW_DEVICE_CLOCK_MASTER, 9);
  98        if (ret < 0) {
  99                dev_err(rtd->dev, "failed to set device config\n");
 100                return ret;
 101        }
 102
 103        return 0;
 104}
 105
 106static struct snd_soc_dai_link haswell_rt5640_dais[] = {
 107        /* Front End DAI links */
 108        {
 109                .name = "System",
 110                .stream_name = "System Playback/Capture",
 111                .cpu_dai_name = "System Pin",
 112                .platform_name = "haswell-pcm-audio",
 113                .dynamic = 1,
 114                .codec_name = "snd-soc-dummy",
 115                .codec_dai_name = "snd-soc-dummy-dai",
 116                .init = haswell_rtd_init,
 117                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 118                .dpcm_playback = 1,
 119                .dpcm_capture = 1,
 120        },
 121        {
 122                .name = "Offload0",
 123                .stream_name = "Offload0 Playback",
 124                .cpu_dai_name = "Offload0 Pin",
 125                .platform_name = "haswell-pcm-audio",
 126                .dynamic = 1,
 127                .codec_name = "snd-soc-dummy",
 128                .codec_dai_name = "snd-soc-dummy-dai",
 129                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 130                .dpcm_playback = 1,
 131        },
 132        {
 133                .name = "Offload1",
 134                .stream_name = "Offload1 Playback",
 135                .cpu_dai_name = "Offload1 Pin",
 136                .platform_name = "haswell-pcm-audio",
 137                .dynamic = 1,
 138                .codec_name = "snd-soc-dummy",
 139                .codec_dai_name = "snd-soc-dummy-dai",
 140                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 141                .dpcm_playback = 1,
 142        },
 143        {
 144                .name = "Loopback",
 145                .stream_name = "Loopback",
 146                .cpu_dai_name = "Loopback Pin",
 147                .platform_name = "haswell-pcm-audio",
 148                .dynamic = 0,
 149                .codec_name = "snd-soc-dummy",
 150                .codec_dai_name = "snd-soc-dummy-dai",
 151                .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 152                .dpcm_capture = 1,
 153        },
 154
 155        /* Back End DAI links */
 156        {
 157                /* SSP0 - Codec */
 158                .name = "Codec",
 159                .be_id = 0,
 160                .cpu_dai_name = "snd-soc-dummy-dai",
 161                .platform_name = "snd-soc-dummy",
 162                .no_pcm = 1,
 163                .codec_name = "i2c-INT33CA:00",
 164                .codec_dai_name = "rt5640-aif1",
 165                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 166                        SND_SOC_DAIFMT_CBS_CFS,
 167                .ignore_suspend = 1,
 168                .ignore_pmdown_time = 1,
 169                .be_hw_params_fixup = haswell_ssp0_fixup,
 170                .ops = &haswell_rt5640_ops,
 171                .dpcm_playback = 1,
 172                .dpcm_capture = 1,
 173        },
 174};
 175
 176/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
 177static struct snd_soc_card haswell_rt5640 = {
 178        .name = "haswell-rt5640",
 179        .owner = THIS_MODULE,
 180        .dai_link = haswell_rt5640_dais,
 181        .num_links = ARRAY_SIZE(haswell_rt5640_dais),
 182        .dapm_widgets = haswell_widgets,
 183        .num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
 184        .dapm_routes = haswell_rt5640_map,
 185        .num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
 186        .fully_routed = true,
 187};
 188
 189static int haswell_audio_probe(struct platform_device *pdev)
 190{
 191        haswell_rt5640.dev = &pdev->dev;
 192
 193        return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
 194}
 195
 196static struct platform_driver haswell_audio = {
 197        .probe = haswell_audio_probe,
 198        .driver = {
 199                .name = "haswell-audio",
 200        },
 201};
 202
 203module_platform_driver(haswell_audio)
 204
 205/* Module information */
 206MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 207MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
 208MODULE_LICENSE("GPL v2");
 209MODULE_ALIAS("platform:haswell-audio");
 210