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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         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
 49         if (ret)
 50                 return ret;
 51 
 52         return 0;
 53 }
 54 
 55 static struct snd_soc_ops imx_mc13783_hifi_ops = {
 56         .hw_params = imx_mc13783_hifi_hw_params,
 57 };
 58 
 59 static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
 60         {
 61                 .name = "MC13783",
 62                 .stream_name     = "Sound",
 63                 .codec_dai_name  = "mc13783-hifi",
 64                 .codec_name      = "mc13783-codec",
 65                 .cpu_dai_name    = "imx-ssi.0",
 66                 .platform_name   = "imx-ssi.0",
 67                 .ops             = &imx_mc13783_hifi_ops,
 68                 .symmetric_rates = 1,
 69                 .dai_fmt         = FMT_SSI,
 70         },
 71 };
 72 
 73 static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
 74         SND_SOC_DAPM_MIC("Mic", NULL),
 75         SND_SOC_DAPM_HP("Headphone", NULL),
 76         SND_SOC_DAPM_SPK("Speaker", NULL),
 77 };
 78 
 79 static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
 80         {"Speaker", NULL, "LSP"},
 81         {"Headphone", NULL, "HSL"},
 82         {"Headphone", NULL, "HSR"},
 83 
 84         {"MC1LIN", NULL, "MC1 Bias"},
 85         {"MC2IN", NULL, "MC2 Bias"},
 86         {"MC1 Bias", NULL, "Mic"},
 87         {"MC2 Bias", NULL, "Mic"},
 88 };
 89 
 90 static struct snd_soc_card imx_mc13783 = {
 91         .name           = "imx_mc13783",
 92         .owner          = THIS_MODULE,
 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 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         if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
115                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
116                         IMX_AUDMUX_V2_PTCR_SYN,
117                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
118                         IMX_AUDMUX_V2_PDCR_MODE(1) |
119                         IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
120                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
121                         IMX_AUDMUX_V2_PTCR_SYN |
122                         IMX_AUDMUX_V2_PTCR_TFSDIR |
123                         IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
124                         IMX_AUDMUX_V2_PTCR_TCLKDIR |
125                         IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
126                         IMX_AUDMUX_V2_PTCR_RFSDIR |
127                         IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
128                         IMX_AUDMUX_V2_PTCR_RCLKDIR |
129                         IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
130                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
131         } else if (machine_is_mx27_3ds()) {
132                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
133                         IMX_AUDMUX_V1_PCR_SYN |
134                         IMX_AUDMUX_V1_PCR_TFSDIR |
135                         IMX_AUDMUX_V1_PCR_TCLKDIR |
136                         IMX_AUDMUX_V1_PCR_RFSDIR |
137                         IMX_AUDMUX_V1_PCR_RCLKDIR |
138                         IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
139                         IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
140                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
141                 );
142                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
143                         IMX_AUDMUX_V1_PCR_SYN |
144                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
145                 );
146         }
147 
148         return ret;
149 }
150 
151 static int imx_mc13783_remove(struct platform_device *pdev)
152 {
153         snd_soc_unregister_card(&imx_mc13783);
154 
155         return 0;
156 }
157 
158 static struct platform_driver imx_mc13783_audio_driver = {
159         .driver = {
160                 .name = "imx_mc13783",
161         },
162         .probe = imx_mc13783_probe,
163         .remove = imx_mc13783_remove
164 };
165 
166 module_platform_driver(imx_mc13783_audio_driver);
167 
168 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
169 MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
170 MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
171 MODULE_LICENSE("GPL");
172 MODULE_ALIAS("platform:imx_mc13783");
173 

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