sound/soc/intel/boards/hsw_rt5640.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Sound card driver for Intel Haswell Lynx Point with Realtek 5640
   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/pcm_params.h>
  13 #include <sound/soc.h>
  14 #include <sound/soc-acpi.h>
  15 #include "../../codecs/rt5640.h"
  16
  17 static const struct snd_soc_dapm_widget card_widgets[] = {
  18         SND_SOC_DAPM_HP("Headphones", NULL),
  19         SND_SOC_DAPM_MIC("Mic", NULL),
  20 };
  21
  22 static const struct snd_soc_dapm_route card_routes[] = {
  23         {"Headphones", NULL, "HPOR"},
  24         {"Headphones", NULL, "HPOL"},
  25         {"IN2P", NULL, "Mic"},
  26
  27         /* CODEC BE connections */
  28         {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
  29         {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
  30 };
  31
  32 static int codec_link_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
  33                                       struct snd_pcm_hw_params *params)
  34 {
  35         struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
  36         struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
  37
  38         /* The ADSP will convert the FE rate to 48k, stereo. */
  39         rate->min = rate->max = 48000;
  40         channels->min = channels->max = 2;
  41         /* Set SSP0 to 16 bit. */
  42         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
  43
  44         return 0;
  45 }
  46
  47 static int codec_link_hw_params(struct snd_pcm_substream *substream,
  48                                 struct snd_pcm_hw_params *params)
  49 {
  50         struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
  51         struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
  52         int ret;
  53
  54         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000, SND_SOC_CLOCK_IN);
  55         if (ret < 0) {
  56                 dev_err(rtd->dev, "set codec sysclk failed: %d\n", ret);
  57                 return ret;
  58         }
  59
  60         /* Set correct codec filter for DAI format and clock config. */
  61         snd_soc_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);
  62
  63         return ret;
  64 }
  65
  66 static const struct snd_soc_ops codec_link_ops = {
  67         .hw_params = codec_link_hw_params,
  68 };
  69
  70 SND_SOC_DAILINK_DEF(system, DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
  71 SND_SOC_DAILINK_DEF(offload0, DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
  72 SND_SOC_DAILINK_DEF(offload1, DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
  73 SND_SOC_DAILINK_DEF(loopback, DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
  74
  75 SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
  76 SND_SOC_DAILINK_DEF(codec, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT33CA:00", "rt5640-aif1")));
  77 SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
  78 SND_SOC_DAILINK_DEF(ssp0_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
  79
  80 static struct snd_soc_dai_link card_dai_links[] = {
  81         /* Front End DAI links */
  82         {
  83                 .name = "System",
  84                 .stream_name = "System Playback/Capture",
  85                 .nonatomic = 1,
  86                 .dynamic = 1,
  87                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
  88                 .dpcm_playback = 1,
  89                 .dpcm_capture = 1,
  90                 SND_SOC_DAILINK_REG(system, dummy, platform),
  91         },
  92         {
  93                 .name = "Offload0",
  94                 .stream_name = "Offload0 Playback",
  95                 .nonatomic = 1,
  96                 .dynamic = 1,
  97                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
  98                 .dpcm_playback = 1,
  99                 SND_SOC_DAILINK_REG(offload0, dummy, platform),
 100         },
 101         {
 102                 .name = "Offload1",
 103                 .stream_name = "Offload1 Playback",
 104                 .nonatomic = 1,
 105                 .dynamic = 1,
 106                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 107                 .dpcm_playback = 1,
 108                 SND_SOC_DAILINK_REG(offload1, dummy, platform),
 109         },
 110         {
 111                 .name = "Loopback",
 112                 .stream_name = "Loopback",
 113                 .nonatomic = 1,
 114                 .dynamic = 1,
 115                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 116                 .dpcm_capture = 1,
 117                 SND_SOC_DAILINK_REG(loopback, dummy, platform),
 118         },
 119         /* Back End DAI links */
 120         {
 121                 /* SSP0 - Codec */
 122                 .name = "Codec",
 123                 .id = 0,
 124                 .nonatomic = 1,
 125                 .no_pcm = 1,
 126                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC,
 127                 .ignore_pmdown_time = 1,
 128                 .be_hw_params_fixup = codec_link_hw_params_fixup,
 129                 .ops = &codec_link_ops,
 130                 .dpcm_playback = 1,
 131                 .dpcm_capture = 1,
 132                 SND_SOC_DAILINK_REG(ssp0_port, codec, platform),
 133         },
 134 };
 135
 136 static struct snd_soc_card hsw_rt5640_card = {
 137         .name = "haswell-rt5640",
 138         .owner = THIS_MODULE,
 139         .dai_link = card_dai_links,
 140         .num_links = ARRAY_SIZE(card_dai_links),
 141         .dapm_widgets = card_widgets,
 142         .num_dapm_widgets = ARRAY_SIZE(card_widgets),
 143         .dapm_routes = card_routes,
 144         .num_dapm_routes = ARRAY_SIZE(card_routes),
 145         .fully_routed = true,
 146 };
 147
 148 static int hsw_rt5640_probe(struct platform_device *pdev)
 149 {
 150         struct snd_soc_acpi_mach *mach;
 151         struct device *dev = &pdev->dev;
 152         int ret;
 153
 154         hsw_rt5640_card.dev = dev;
 155         mach = dev_get_platdata(dev);
 156
 157         ret = snd_soc_fixup_dai_links_platform_name(&hsw_rt5640_card, mach->mach_params.platform);
 158         if (ret)
 159                 return ret;
 160
 161         return devm_snd_soc_register_card(dev, &hsw_rt5640_card);
 162 }
 163
 164 static struct platform_driver hsw_rt5640_driver = {
 165         .probe = hsw_rt5640_probe,
 166         .driver = {
 167                 .name = "hsw_rt5640",
 168                 .pm = &snd_soc_pm_ops,
 169         },
 170 };
 171
 172 module_platform_driver(hsw_rt5640_driver)
 173
 174 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 175 MODULE_DESCRIPTION("Sound card driver for Intel Haswell Lynx Point with Realtek 5640");
 176 MODULE_LICENSE("GPL");
 177 MODULE_ALIAS("platform:hsw_rt5640");