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Linux/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");
169 

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