kernel/sound/soc/fsl/imx-mc13783.c

   1 /*
   2  * imx-mc13783.c  --  SoC audio for imx based boards with mc13783 codec
   3  *
   4  * Copyright 2012 Philippe Retornaz, <philippe.retornaz@epfl.ch>
   5  *
   6  * Heavly based on phycore-mc13783:
   7  * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
   8  *
   9  *  This program is free software; you can redistribute  it and/or modify it
  10  *  under  the terms of  the GNU General  Public License as published by the
  11  *  Free Software Foundation;  either version 2 of the  License, or (at your
  12  *  option) any later version.
  13  *
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/moduleparam.h>
  18 #include <linux/device.h>
  19 #include <sound/core.h>
  20 #include <sound/pcm.h>
  21 #include <sound/soc.h>
  22 #include <sound/soc-dapm.h>
  23 #include <asm/mach-types.h>
  24
  25 #include "../codecs/mc13783.h"
  26 #include "imx-ssi.h"
  27 #include "imx-audmux.h"
  28
  29 #define FMT_SSI (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | \
  30                 SND_SOC_DAIFMT_CBM_CFM)
  31
  32 static int imx_mc13783_hifi_hw_params(struct snd_pcm_substream *substream,
  33         struct snd_pcm_hw_params *params)
  34 {
  35         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  36         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  37         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  38         int ret;
  39
  40         ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 4, 16);
  41         if (ret)
  42                 return ret;
  43
  44         ret = snd_soc_dai_set_sysclk(codec_dai, MC13783_CLK_CLIA, 26000000, 0);
  45         if (ret)
  46                 return ret;
  47
  48         return snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
  49 }
  50
  51 static struct snd_soc_ops imx_mc13783_hifi_ops = {
  52         .hw_params = imx_mc13783_hifi_hw_params,
  53 };
  54
  55 static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
  56         {
  57                 .name = "MC13783",
  58                 .stream_name     = "Sound",
  59                 .codec_dai_name  = "mc13783-hifi",
  60                 .codec_name      = "mc13783-codec",
  61                 .cpu_dai_name    = "imx-ssi.0",
  62                 .platform_name   = "imx-ssi.0",
  63                 .ops             = &imx_mc13783_hifi_ops,
  64                 .symmetric_rates = 1,
  65                 .dai_fmt         = FMT_SSI,
  66         },
  67 };
  68
  69 static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
  70         SND_SOC_DAPM_MIC("Mic", NULL),
  71         SND_SOC_DAPM_HP("Headphone", NULL),
  72         SND_SOC_DAPM_SPK("Speaker", NULL),
  73 };
  74
  75 static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
  76         {"Speaker", NULL, "LSP"},
  77         {"Headphone", NULL, "HSL"},
  78         {"Headphone", NULL, "HSR"},
  79
  80         {"MC1LIN", NULL, "MC1 Bias"},
  81         {"MC2IN", NULL, "MC2 Bias"},
  82         {"MC1 Bias", NULL, "Mic"},
  83         {"MC2 Bias", NULL, "Mic"},
  84 };
  85
  86 static struct snd_soc_card imx_mc13783 = {
  87         .name           = "imx_mc13783",
  88         .owner          = THIS_MODULE,
  89         .dai_link       = imx_mc13783_dai_mc13783,
  90         .num_links      = ARRAY_SIZE(imx_mc13783_dai_mc13783),
  91         .dapm_widgets   = imx_mc13783_widget,
  92         .num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
  93         .dapm_routes    = imx_mc13783_routes,
  94         .num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
  95 };
  96
  97 static int imx_mc13783_probe(struct platform_device *pdev)
  98 {
  99         int ret;
 100
 101         imx_mc13783.dev = &pdev->dev;
 102
 103         ret = snd_soc_register_card(&imx_mc13783);
 104         if (ret) {
 105                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 106                         ret);
 107                 return ret;
 108         }
 109
 110         if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
 111                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
 112                         IMX_AUDMUX_V2_PTCR_SYN,
 113                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
 114                         IMX_AUDMUX_V2_PDCR_MODE(1) |
 115                         IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
 116                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
 117                         IMX_AUDMUX_V2_PTCR_SYN |
 118                         IMX_AUDMUX_V2_PTCR_TFSDIR |
 119                         IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 120                         IMX_AUDMUX_V2_PTCR_TCLKDIR |
 121                         IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 122                         IMX_AUDMUX_V2_PTCR_RFSDIR |
 123                         IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 124                         IMX_AUDMUX_V2_PTCR_RCLKDIR |
 125                         IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
 126                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
 127         } else if (machine_is_mx27_3ds()) {
 128                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 129                         IMX_AUDMUX_V1_PCR_SYN |
 130                         IMX_AUDMUX_V1_PCR_TFSDIR |
 131                         IMX_AUDMUX_V1_PCR_TCLKDIR |
 132                         IMX_AUDMUX_V1_PCR_RFSDIR |
 133                         IMX_AUDMUX_V1_PCR_RCLKDIR |
 134                         IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
 135                         IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
 136                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
 137                 );
 138                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
 139                         IMX_AUDMUX_V1_PCR_SYN |
 140                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
 141                 );
 142         }
 143
 144         return ret;
 145 }
 146
 147 static int imx_mc13783_remove(struct platform_device *pdev)
 148 {
 149         snd_soc_unregister_card(&imx_mc13783);
 150
 151         return 0;
 152 }
 153
 154 static struct platform_driver imx_mc13783_audio_driver = {
 155         .driver = {
 156                 .name = "imx_mc13783",
 157         },
 158         .probe = imx_mc13783_probe,
 159         .remove = imx_mc13783_remove
 160 };
 161
 162 module_platform_driver(imx_mc13783_audio_driver);
 163
 164 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 165 MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
 166 MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
 167 MODULE_LICENSE("GPL");
 168 MODULE_ALIAS("platform:imx_mc13783");