linux/sound/soc/fsl/imx-mc13783.c
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   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
  32static 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
  51static struct snd_soc_ops imx_mc13783_hifi_ops = {
  52        .hw_params = imx_mc13783_hifi_hw_params,
  53};
  54
  55static 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
  69static 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
  75static 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
  86static 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
  97static 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
 147static int imx_mc13783_remove(struct platform_device *pdev)
 148{
 149        snd_soc_unregister_card(&imx_mc13783);
 150
 151        return 0;
 152}
 153
 154static 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
 162module_platform_driver(imx_mc13783_audio_driver);
 163
 164MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 165MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
 166MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
 167MODULE_LICENSE("GPL");
 168MODULE_ALIAS("platform:imx_mc13783");
 169