kernel/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 */
  30 static const struct snd_soc_dapm_widget haswell_widgets[] = {
  31         SND_SOC_DAPM_HP("Headphones", NULL),
  32         SND_SOC_DAPM_MIC("Mic", NULL),
  33 };
  34
  35 static 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
  46 static 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
  63 static 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
  84 static struct snd_soc_ops haswell_rt5640_ops = {
  85         .hw_params = haswell_rt5640_hw_params,
  86 };
  87
  88 static 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
 106 static 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 */
 177 static 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
 189 static 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
 196 static struct platform_driver haswell_audio = {
 197         .probe = haswell_audio_probe,
 198         .driver = {
 199                 .name = "haswell-audio",
 200         },
 201 };
 202
 203 module_platform_driver(haswell_audio)
 204
 205 /* Module information */
 206 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 207 MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
 208 MODULE_LICENSE("GPL v2");
 209 MODULE_ALIAS("platform:haswell-audio");