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

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  1 // SPDX-License-Identifier: GPL-2.0+
  2 //
  3 // imx-mc13783.c  --  SoC audio for imx based boards with mc13783 codec
  4 //
  5 // Copyright 2012 Philippe Retornaz, <philippe.retornaz@epfl.ch>
  6 //
  7 // Heavly based on phycore-mc13783:
  8 // Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
  9 
 10 #include <linux/module.h>
 11 #include <linux/moduleparam.h>
 12 #include <linux/device.h>
 13 #include <sound/core.h>
 14 #include <sound/pcm.h>
 15 #include <sound/soc.h>
 16 #include <sound/soc-dapm.h>
 17 #include <asm/mach-types.h>
 18 
 19 #include "../codecs/mc13783.h"
 20 #include "imx-ssi.h"
 21 #include "imx-audmux.h"
 22 
 23 #define FMT_SSI (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | \
 24                 SND_SOC_DAIFMT_CBM_CFM)
 25 
 26 static int imx_mc13783_hifi_hw_params(struct snd_pcm_substream *substream,
 27         struct snd_pcm_hw_params *params)
 28 {
 29         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 30         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 31         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 32         int ret;
 33 
 34         ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 4, 16);
 35         if (ret)
 36                 return ret;
 37 
 38         ret = snd_soc_dai_set_sysclk(codec_dai, MC13783_CLK_CLIA, 26000000, 0);
 39         if (ret)
 40                 return ret;
 41 
 42         return snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
 43 }
 44 
 45 static const struct snd_soc_ops imx_mc13783_hifi_ops = {
 46         .hw_params = imx_mc13783_hifi_hw_params,
 47 };
 48 
 49 SND_SOC_DAILINK_DEFS(hifi,
 50         DAILINK_COMP_ARRAY(COMP_CPU("imx-ssi.0")),
 51         DAILINK_COMP_ARRAY(COMP_CODEC("mc13783-codec", "mc13783-hifi")),
 52         DAILINK_COMP_ARRAY(COMP_PLATFORM("imx-ssi.0")));
 53 
 54 static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
 55         {
 56                 .name = "MC13783",
 57                 .stream_name     = "Sound",
 58                 .ops             = &imx_mc13783_hifi_ops,
 59                 .symmetric_rates = 1,
 60                 .dai_fmt         = FMT_SSI,
 61                 SND_SOC_DAILINK_REG(hifi),
 62         },
 63 };
 64 
 65 static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
 66         SND_SOC_DAPM_MIC("Mic", NULL),
 67         SND_SOC_DAPM_HP("Headphone", NULL),
 68         SND_SOC_DAPM_SPK("Speaker", NULL),
 69 };
 70 
 71 static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
 72         {"Speaker", NULL, "LSP"},
 73         {"Headphone", NULL, "HSL"},
 74         {"Headphone", NULL, "HSR"},
 75 
 76         {"MC1LIN", NULL, "MC1 Bias"},
 77         {"MC2IN", NULL, "MC2 Bias"},
 78         {"MC1 Bias", NULL, "Mic"},
 79         {"MC2 Bias", NULL, "Mic"},
 80 };
 81 
 82 static struct snd_soc_card imx_mc13783 = {
 83         .name           = "imx_mc13783",
 84         .owner          = THIS_MODULE,
 85         .dai_link       = imx_mc13783_dai_mc13783,
 86         .num_links      = ARRAY_SIZE(imx_mc13783_dai_mc13783),
 87         .dapm_widgets   = imx_mc13783_widget,
 88         .num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
 89         .dapm_routes    = imx_mc13783_routes,
 90         .num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
 91 };
 92 
 93 static int imx_mc13783_probe(struct platform_device *pdev)
 94 {
 95         int ret;
 96 
 97         imx_mc13783.dev = &pdev->dev;
 98 
 99         ret = devm_snd_soc_register_card(&pdev->dev, &imx_mc13783);
100         if (ret) {
101                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
102                         ret);
103                 return ret;
104         }
105 
106         if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
107                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
108                         IMX_AUDMUX_V2_PTCR_SYN,
109                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
110                         IMX_AUDMUX_V2_PDCR_MODE(1) |
111                         IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
112                 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
113                         IMX_AUDMUX_V2_PTCR_SYN |
114                         IMX_AUDMUX_V2_PTCR_TFSDIR |
115                         IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
116                         IMX_AUDMUX_V2_PTCR_TCLKDIR |
117                         IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
118                         IMX_AUDMUX_V2_PTCR_RFSDIR |
119                         IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
120                         IMX_AUDMUX_V2_PTCR_RCLKDIR |
121                         IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
122                         IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
123         } else if (machine_is_mx27_3ds()) {
124                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
125                         IMX_AUDMUX_V1_PCR_SYN |
126                         IMX_AUDMUX_V1_PCR_TFSDIR |
127                         IMX_AUDMUX_V1_PCR_TCLKDIR |
128                         IMX_AUDMUX_V1_PCR_RFSDIR |
129                         IMX_AUDMUX_V1_PCR_RCLKDIR |
130                         IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
131                         IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
132                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
133                 );
134                 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
135                         IMX_AUDMUX_V1_PCR_SYN |
136                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
137                 );
138         }
139 
140         return ret;
141 }
142 
143 static struct platform_driver imx_mc13783_audio_driver = {
144         .driver = {
145                 .name = "imx_mc13783",
146         },
147         .probe = imx_mc13783_probe,
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");
157 

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