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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | /* * eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode * * Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com> * * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c * which is Copyright 2009 Simtec Electronics * and on sound/soc/imx/phycore-ac97.c which is * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/device.h> #include <linux/i2c.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <asm/mach-types.h> #include "../codecs/tlv320aic23.h" #include "imx-ssi.h" #include "imx-audmux.h" #define CODEC_CLOCK 12000000 static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int ret; ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); if (ret) { pr_err("%s: failed set cpu dai format\n", __func__); return ret; } ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); if (ret) { pr_err("%s: failed set codec dai format\n", __func__); return ret; } ret = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_OUT); if (ret) { pr_err("%s: failed setting codec sysclk\n", __func__); return ret; } snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0); ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, SND_SOC_CLOCK_IN); if (ret) { pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n"); return ret; } return 0; } static struct snd_soc_ops eukrea_tlv320_snd_ops = { .hw_params = eukrea_tlv320_hw_params, }; static struct snd_soc_dai_link eukrea_tlv320_dai = { .name = "tlv320aic23", .stream_name = "TLV320AIC23", .codec_dai_name = "tlv320aic23-hifi", .platform_name = "imx-ssi.0", .codec_name = "tlv320aic23-codec.0-001a", .cpu_dai_name = "imx-ssi.0", .ops = &eukrea_tlv320_snd_ops, }; static struct snd_soc_card eukrea_tlv320 = { .name = "cpuimx-audio", .owner = THIS_MODULE, .dai_link = &eukrea_tlv320_dai, .num_links = 1, }; static int eukrea_tlv320_probe(struct platform_device *pdev) { int ret; int int_port = 0, ext_port; if (machine_is_eukrea_cpuimx27()) { imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_TFSDIR | IMX_AUDMUX_V1_PCR_TCLKDIR | IMX_AUDMUX_V1_PCR_RFSDIR | IMX_AUDMUX_V1_PCR_RCLKDIR | IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) ); imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) ); } else if (machine_is_eukrea_cpuimx25sd() || machine_is_eukrea_cpuimx35sd() || machine_is_eukrea_cpuimx51sd()) { ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3; imx_audmux_v2_configure_port(int_port, IMX_AUDMUX_V2_PTCR_SYN | IMX_AUDMUX_V2_PTCR_TFSDIR | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | IMX_AUDMUX_V2_PTCR_TCLKDIR | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port), IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port) ); imx_audmux_v2_configure_port(ext_port, IMX_AUDMUX_V2_PTCR_SYN, IMX_AUDMUX_V2_PDCR_RXDSEL(int_port) ); } else { /* return happy. We might run on a totally different machine */ return 0; } eukrea_tlv320.dev = &pdev->dev; ret = snd_soc_register_card(&eukrea_tlv320); if (ret) dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); return ret; } static int eukrea_tlv320_remove(struct platform_device *pdev) { snd_soc_unregister_card(&eukrea_tlv320); return 0; } static struct platform_driver eukrea_tlv320_driver = { .driver = { .name = "eukrea_tlv320", .owner = THIS_MODULE, }, .probe = eukrea_tlv320_probe, .remove = eukrea_tlv320_remove,}; module_platform_driver(eukrea_tlv320_driver); MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>"); MODULE_DESCRIPTION("CPUIMX ALSA SoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:eukrea_tlv320"); |