LXR linux/sound/soc/pxa/brownstone.c

   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
  17static const struct snd_kcontrol_new brownstone_dapm_control[] = {
  18        SOC_DAPM_PIN_SWITCH("Ext Spk"),
  19};
  20
  21static 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
  28static 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
  43static 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 */
  72static const struct snd_soc_ops brownstone_ops = {
  73        .hw_params = brownstone_wm8994_hw_params,
  74};
  75
  76static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
  77{
  78        .name           = "WM8994",
  79        .stream_name    = "WM8994 HiFi",
  80        .cpu_dai_name   = "mmp-sspa-dai.0",
  81        .codec_dai_name = "wm8994-aif1",
  82        .platform_name  = "mmp-pcm-audio",
  83        .codec_name     = "wm8994-codec",
  84        .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  85                                SND_SOC_DAIFMT_CBS_CFS,
  86        .ops            = &brownstone_ops,
  87},
  88};
  89
  90/* audio machine driver */
  91static struct snd_soc_card brownstone = {
  92        .name         = "brownstone",
  93        .owner        = THIS_MODULE,
  94        .dai_link     = brownstone_wm8994_dai,
  95        .num_links    = ARRAY_SIZE(brownstone_wm8994_dai),
  96
  97        .controls = brownstone_dapm_control,
  98        .num_controls = ARRAY_SIZE(brownstone_dapm_control),
  99        .dapm_widgets = brownstone_dapm_widgets,
 100        .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
 101        .dapm_routes = brownstone_audio_map,
 102        .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
 103        .fully_routed = true,
 104};
 105
 106static int brownstone_probe(struct platform_device *pdev)
 107{
 108        int ret;
 109
 110        brownstone.dev = &pdev->dev;
 111        ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
 112        if (ret)
 113                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 114                                ret);
 115        return ret;
 116}
 117
 118static struct platform_driver mmp_driver = {
 119        .driver         = {
 120                .name   = "brownstone-audio",
 121                .pm     = &snd_soc_pm_ops,
 122        },
 123        .probe          = brownstone_probe,
 124};
 125
 126module_platform_driver(mmp_driver);
 127
 128MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
 129MODULE_DESCRIPTION("ALSA SoC Brownstone");
 130MODULE_LICENSE("GPL");
 131MODULE_ALIAS("platform:brownstone-audio");
 132