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, 0xfffffffc, 0xfffffffc,
  41                                         4, 16);
  42         if (ret)
  43                 return ret;
  44
  45         ret = snd_soc_dai_set_sysclk(codec_dai, MC13783_CLK_CLIA, 26000000, 0);
  46         if (ret)
  47                 return ret;
  48
  49         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x0, 0xfffffffc, 2, 16);
  50         if (ret)
  51                 return ret;
  52
  53         return 0;
  54 }
  55
  56 static struct snd_soc_ops imx_mc13783_hifi_ops = {
  57         .hw_params = imx_mc13783_hifi_hw_params,
  58 };
  59
  60 static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
  61         {
  62                 .name = "MC13783",
  63                 .stream_name     = "Sound",
  64                 .codec_dai_name  = "mc13783-hifi",
  65                 .codec_name      = "mc13783-codec",
  66                 .cpu_dai_name    = "imx-ssi.0",
  67                 .platform_name   = "imx-pcm-audio.0",
  68                 .ops             = &imx_mc13783_hifi_ops,
  69                 .symmetric_rates = 1,
  70                 .dai_fmt         = FMT_SSI,
  71         },
  72 };
  73
  74 static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
  75         SND_SOC_DAPM_MIC("Mic", NULL),
  76         SND_SOC_DAPM_HP("Headphone", NULL),
  77         SND_SOC_DAPM_SPK("Speaker", NULL),
  78 };
  79
  80 static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
  81         {"Speaker", NULL, "LSP"},
  82         {"Headphone", NULL, "HSL"},
  83         {"Headphone", NULL, "HSR"},
  84
  85         {"MC1LIN", NULL, "MC1 Bias"},
  86         {"MC2IN", NULL, "MC2 Bias"},
  87         {"MC1 Bias", NULL, "Mic"},
  88         {"MC2 Bias", NULL, "Mic"},
  89 };
  90
  91 static struct snd_soc_card imx_mc13783 = {
  92         .name           = "imx_mc13783",
  93         .dai_link       = imx_mc13783_dai_mc13783,
  94         .num_links      = ARRAY_SIZE(imx_mc13783_dai_mc13783),
  95         .dapm_widgets   = imx_mc13783_widget,
  96         .num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
  97         .dapm_routes    = imx_mc13783_routes,
  98         .num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
  99 };
 100
 101 static int __devinit imx_mc13783_probe(struct platform_device *pdev)
 102 {
 103         int ret;
 104
 105         imx_mc13783.dev = &pdev->dev;
 106
 107         ret = snd_soc_register_card(&imx_mc13783);
 108         if (ret) {
 109                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 110                         ret);
 111                 return ret;
 112         }
 113
 114         imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
 115                 IMX_AUDMUX_V2_PTCR_SYN,
 116                 IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
 117                 IMX_AUDMUX_V2_PDCR_MODE(1) |
 118                 IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
 119         imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
 120                 IMX_AUDMUX_V2_PTCR_SYN |
 121                 IMX_AUDMUX_V2_PTCR_TFSDIR |
 122                 IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 123                 IMX_AUDMUX_V2_PTCR_TCLKDIR |
 124                 IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 125                 IMX_AUDMUX_V2_PTCR_RFSDIR |
 126                 IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
 127                 IMX_AUDMUX_V2_PTCR_RCLKDIR |
 128                 IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
 129                 IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
 130
 131         return ret;
 132 }
 133
 134 static int __devexit imx_mc13783_remove(struct platform_device *pdev)
 135 {
 136         snd_soc_unregister_card(&imx_mc13783);
 137
 138         return 0;
 139 }
 140
 141 static struct platform_driver imx_mc13783_audio_driver = {
 142         .driver = {
 143                 .name = "imx_mc13783",
 144                 .owner = THIS_MODULE,
 145         },
 146         .probe = imx_mc13783_probe,
 147         .remove = __devexit_p(imx_mc13783_remove)
 148 };
 149
 150 module_platform_driver(imx_mc13783_audio_driver);
 151
 152 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 153 MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
 154 MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
 155 MODULE_LICENSE("GPL");
 156 MODULE_ALIAS("platform:imx_mc13783");