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