root/sound/soc/pxa/brownstone.c

DEFINITIONS

1. brownstone_wm8994_hw_params
2. brownstone_probe

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * linux/sound/soc/pxa/brownstone.c
   4  *
   5  * Copyright (C) 2011 Marvell International Ltd.
   6  */
   7 
   8 #include <linux/module.h>
   9 #include <sound/core.h>
  10 #include <sound/pcm.h>
  11 #include <sound/soc.h>
  12 #include <sound/jack.h>
  13 
  14 #include "../codecs/wm8994.h"
  15 #include "mmp-sspa.h"
  16 
  17 static const struct snd_kcontrol_new brownstone_dapm_control[] = {
  18         SOC_DAPM_PIN_SWITCH("Ext Spk"),
  19 };
  20 
  21 static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
  22         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  23         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
  24         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  25         SND_SOC_DAPM_MIC("Main Mic", NULL),
  26 };
  27 
  28 static const struct snd_soc_dapm_route brownstone_audio_map[] = {
  29         {"Ext Spk", NULL, "SPKOUTLP"},
  30         {"Ext Spk", NULL, "SPKOUTLN"},
  31         {"Ext Spk", NULL, "SPKOUTRP"},
  32         {"Ext Spk", NULL, "SPKOUTRN"},
  33 
  34         {"Headset Stereophone", NULL, "HPOUT1L"},
  35         {"Headset Stereophone", NULL, "HPOUT1R"},
  36 
  37         {"IN1RN", NULL, "Headset Mic"},
  38 
  39         {"DMIC1DAT", NULL, "MICBIAS1"},
  40         {"MICBIAS1", NULL, "Main Mic"},
  41 };
  42 
  43 static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
  44                                        struct snd_pcm_hw_params *params)
  45 {
  46         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  47         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  48         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  49         int freq_out, sspa_mclk, sysclk;
  50 
  51         if (params_rate(params) > 11025) {
  52                 freq_out  = params_rate(params) * 512;
  53                 sysclk    = params_rate(params) * 256;
  54                 sspa_mclk = params_rate(params) * 64;
  55         } else {
  56                 freq_out  = params_rate(params) * 1024;
  57                 sysclk    = params_rate(params) * 512;
  58                 sspa_mclk = params_rate(params) * 64;
  59         }
  60 
  61         snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
  62         snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
  63         snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
  64 
  65         /* set wm8994 sysclk */
  66         snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
  67 
  68         return 0;
  69 }
  70 
  71 /* machine stream operations */
  72 static const struct snd_soc_ops brownstone_ops = {
  73         .hw_params = brownstone_wm8994_hw_params,
  74 };
  75 
  76 SND_SOC_DAILINK_DEFS(wm8994,
  77         DAILINK_COMP_ARRAY(COMP_CPU("mmp-sspa-dai.0")),
  78         DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")),
  79         DAILINK_COMP_ARRAY(COMP_PLATFORM("mmp-pcm-audio")));
  80 
  81 static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
  82 {
  83         .name           = "WM8994",
  84         .stream_name    = "WM8994 HiFi",
  85         .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  86                                 SND_SOC_DAIFMT_CBS_CFS,
  87         .ops            = &brownstone_ops,
  88         SND_SOC_DAILINK_REG(wm8994),
  89 },
  90 };
  91 
  92 /* audio machine driver */
  93 static struct snd_soc_card brownstone = {
  94         .name         = "brownstone",
  95         .owner        = THIS_MODULE,
  96         .dai_link     = brownstone_wm8994_dai,
  97         .num_links    = ARRAY_SIZE(brownstone_wm8994_dai),
  98 
  99         .controls = brownstone_dapm_control,
 100         .num_controls = ARRAY_SIZE(brownstone_dapm_control),
 101         .dapm_widgets = brownstone_dapm_widgets,
 102         .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
 103         .dapm_routes = brownstone_audio_map,
 104         .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
 105         .fully_routed = true,
 106 };
 107 
 108 static int brownstone_probe(struct platform_device *pdev)
 109 {
 110         int ret;
 111 
 112         brownstone.dev = &pdev->dev;
 113         ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
 114         if (ret)
 115                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 116                                 ret);
 117         return ret;
 118 }
 119 
 120 static struct platform_driver mmp_driver = {
 121         .driver         = {
 122                 .name   = "brownstone-audio",
 123                 .pm     = &snd_soc_pm_ops,
 124         },
 125         .probe          = brownstone_probe,
 126 };
 127 
 128 module_platform_driver(mmp_driver);
 129 
 130 MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
 131 MODULE_DESCRIPTION("ALSA SoC Brownstone");
 132 MODULE_LICENSE("GPL");
 133 MODULE_ALIAS("platform:brownstone-audio");