1/* 2 * Machine driver for EVAL-ADAU1373 on Analog Devices bfin 3 * evaluation boards. 4 * 5 * Copyright 2011 Analog Devices Inc. 6 * Author: Lars-Peter Clausen <lars@metafoo.de> 7 * 8 * Licensed under the GPL-2 or later. 9 */ 10 11#include <linux/module.h> 12#include <linux/device.h> 13#include <sound/core.h> 14#include <sound/pcm.h> 15#include <sound/soc.h> 16#include <sound/pcm_params.h> 17 18#include "../codecs/adau1373.h" 19 20static const struct snd_soc_dapm_widget bfin_eval_adau1373_dapm_widgets[] = { 21 SND_SOC_DAPM_LINE("Line In1", NULL), 22 SND_SOC_DAPM_LINE("Line In2", NULL), 23 SND_SOC_DAPM_LINE("Line In3", NULL), 24 SND_SOC_DAPM_LINE("Line In4", NULL), 25 26 SND_SOC_DAPM_LINE("Line Out1", NULL), 27 SND_SOC_DAPM_LINE("Line Out2", NULL), 28 SND_SOC_DAPM_LINE("Stereo Out", NULL), 29 SND_SOC_DAPM_HP("Headphone", NULL), 30 SND_SOC_DAPM_HP("Earpiece", NULL), 31 SND_SOC_DAPM_SPK("Speaker", NULL), 32}; 33 34static const struct snd_soc_dapm_route bfin_eval_adau1373_dapm_routes[] = { 35 { "AIN1L", NULL, "Line In1" }, 36 { "AIN1R", NULL, "Line In1" }, 37 { "AIN2L", NULL, "Line In2" }, 38 { "AIN2R", NULL, "Line In2" }, 39 { "AIN3L", NULL, "Line In3" }, 40 { "AIN3R", NULL, "Line In3" }, 41 { "AIN4L", NULL, "Line In4" }, 42 { "AIN4R", NULL, "Line In4" }, 43 44 /* MICBIAS can be connected via a jumper to the line-in jack, since w 45 don't know which one is going to be used, just power both. */ 46 { "Line In1", NULL, "MICBIAS1" }, 47 { "Line In2", NULL, "MICBIAS1" }, 48 { "Line In3", NULL, "MICBIAS1" }, 49 { "Line In4", NULL, "MICBIAS1" }, 50 { "Line In1", NULL, "MICBIAS2" }, 51 { "Line In2", NULL, "MICBIAS2" }, 52 { "Line In3", NULL, "MICBIAS2" }, 53 { "Line In4", NULL, "MICBIAS2" }, 54 55 { "Line Out1", NULL, "LOUT1L" }, 56 { "Line Out1", NULL, "LOUT1R" }, 57 { "Line Out2", NULL, "LOUT2L" }, 58 { "Line Out2", NULL, "LOUT2R" }, 59 { "Headphone", NULL, "HPL" }, 60 { "Headphone", NULL, "HPR" }, 61 { "Earpiece", NULL, "EP" }, 62 { "Speaker", NULL, "SPKL" }, 63 { "Stereo Out", NULL, "SPKR" }, 64}; 65 66static int bfin_eval_adau1373_hw_params(struct snd_pcm_substream *substream, 67 struct snd_pcm_hw_params *params) 68{ 69 struct snd_soc_pcm_runtime *rtd = substream->private_data; 70 struct snd_soc_dai *codec_dai = rtd->codec_dai; 71 int ret; 72 int pll_rate; 73 74 switch (params_rate(params)) { 75 case 48000: 76 case 8000: 77 case 12000: 78 case 16000: 79 case 24000: 80 case 32000: 81 pll_rate = 48000 * 1024; 82 break; 83 case 44100: 84 case 7350: 85 case 11025: 86 case 14700: 87 case 22050: 88 case 29400: 89 pll_rate = 44100 * 1024; 90 break; 91 default: 92 return -EINVAL; 93 } 94 95 ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1, 96 ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate); 97 if (ret) 98 return ret; 99 100 ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate, 101 SND_SOC_CLOCK_IN); 102 103 return ret; 104} 105 106static int bfin_eval_adau1373_codec_init(struct snd_soc_pcm_runtime *rtd) 107{ 108 struct snd_soc_dai *codec_dai = rtd->codec_dai; 109 unsigned int pll_rate = 48000 * 1024; 110 int ret; 111 112 ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1, 113 ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate); 114 if (ret) 115 return ret; 116 117 ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate, 118 SND_SOC_CLOCK_IN); 119 120 return ret; 121} 122static struct snd_soc_ops bfin_eval_adau1373_ops = { 123 .hw_params = bfin_eval_adau1373_hw_params, 124}; 125 126static struct snd_soc_dai_link bfin_eval_adau1373_dai = { 127 .name = "adau1373", 128 .stream_name = "adau1373", 129 .cpu_dai_name = "bfin-i2s.0", 130 .codec_dai_name = "adau1373-aif1", 131 .platform_name = "bfin-i2s-pcm-audio", 132 .codec_name = "adau1373.0-001a", 133 .ops = &bfin_eval_adau1373_ops, 134 .init = bfin_eval_adau1373_codec_init, 135 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 136 SND_SOC_DAIFMT_CBM_CFM, 137}; 138 139static struct snd_soc_card bfin_eval_adau1373 = { 140 .name = "bfin-eval-adau1373", 141 .owner = THIS_MODULE, 142 .dai_link = &bfin_eval_adau1373_dai, 143 .num_links = 1, 144 145 .dapm_widgets = bfin_eval_adau1373_dapm_widgets, 146 .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1373_dapm_widgets), 147 .dapm_routes = bfin_eval_adau1373_dapm_routes, 148 .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1373_dapm_routes), 149}; 150 151static int bfin_eval_adau1373_probe(struct platform_device *pdev) 152{ 153 struct snd_soc_card *card = &bfin_eval_adau1373; 154 155 card->dev = &pdev->dev; 156 157 return snd_soc_register_card(&bfin_eval_adau1373); 158} 159 160static int bfin_eval_adau1373_remove(struct platform_device *pdev) 161{ 162 struct snd_soc_card *card = platform_get_drvdata(pdev); 163 164 snd_soc_unregister_card(card); 165 166 return 0; 167} 168 169static struct platform_driver bfin_eval_adau1373_driver = { 170 .driver = { 171 .name = "bfin-eval-adau1373", 172 .pm = &snd_soc_pm_ops, 173 }, 174 .probe = bfin_eval_adau1373_probe, 175 .remove = bfin_eval_adau1373_remove, 176}; 177 178module_platform_driver(bfin_eval_adau1373_driver); 179 180MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); 181MODULE_DESCRIPTION("ALSA SoC bfin adau1373 driver"); 182MODULE_LICENSE("GPL"); 183MODULE_ALIAS("platform:bfin-eval-adau1373"); 184