1d2ec3abaSSangbeom Kim /* 2d2ec3abaSSangbeom Kim * sound/soc/samsung/smdk_wm8994pcm.c 3d2ec3abaSSangbeom Kim * 4d2ec3abaSSangbeom Kim * Copyright (c) 2011 Samsung Electronics Co., Ltd 5d2ec3abaSSangbeom Kim * http://www.samsung.com 6d2ec3abaSSangbeom Kim * 7d2ec3abaSSangbeom Kim * This program is free software; you can redistribute it and/or modify it 8d2ec3abaSSangbeom Kim * under the terms of the GNU General Public License as published by the 9d2ec3abaSSangbeom Kim * Free Software Foundation; either version 2 of the License, or (at your 10d2ec3abaSSangbeom Kim * option) any later version. 11d2ec3abaSSangbeom Kim */ 12da155d5bSPaul Gortmaker #include <linux/module.h> 13d2ec3abaSSangbeom Kim #include <sound/soc.h> 14d2ec3abaSSangbeom Kim #include <sound/pcm.h> 15d2ec3abaSSangbeom Kim #include <sound/pcm_params.h> 16d2ec3abaSSangbeom Kim 17d2ec3abaSSangbeom Kim #include "../codecs/wm8994.h" 18d2ec3abaSSangbeom Kim #include "dma.h" 19d2ec3abaSSangbeom Kim #include "pcm.h" 20d2ec3abaSSangbeom Kim 21d2ec3abaSSangbeom Kim /* 22d2ec3abaSSangbeom Kim * Board Settings: 23d2ec3abaSSangbeom Kim * o '1' means 'ON' 24d2ec3abaSSangbeom Kim * o '0' means 'OFF' 25d2ec3abaSSangbeom Kim * o 'X' means 'Don't care' 26d2ec3abaSSangbeom Kim * 27d2ec3abaSSangbeom Kim * SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111 28d2ec3abaSSangbeom Kim */ 29d2ec3abaSSangbeom Kim 30d2ec3abaSSangbeom Kim /* 31d2ec3abaSSangbeom Kim * Configure audio route as :- 32d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1' on,on 33d2ec3abaSSangbeom Kim * $ amixer sset 'Right Headphone Mux' 'DAC' 34d2ec3abaSSangbeom Kim * $ amixer sset 'Left Headphone Mux' 'DAC' 35d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1R Mixer AIF1.1' on 36d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1L Mixer AIF1.1' on 37d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L' on 38d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L PGA IN2LN' on 39d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINL IN2L' on 40d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on 41d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R' on 42d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R PGA IN2RN' on 43d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINR IN2R' on 44d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on 45d2ec3abaSSangbeom Kim */ 46d2ec3abaSSangbeom Kim 47d2ec3abaSSangbeom Kim /* SMDK has a 16.9344MHZ crystal attached to WM8994 */ 48d2ec3abaSSangbeom Kim #define SMDK_WM8994_FREQ 16934400 49d2ec3abaSSangbeom Kim 50d2ec3abaSSangbeom Kim static int smdk_wm8994_pcm_hw_params(struct snd_pcm_substream *substream, 51d2ec3abaSSangbeom Kim struct snd_pcm_hw_params *params) 52d2ec3abaSSangbeom Kim { 53d2ec3abaSSangbeom Kim struct snd_soc_pcm_runtime *rtd = substream->private_data; 54d2ec3abaSSangbeom Kim struct snd_soc_dai *codec_dai = rtd->codec_dai; 55d2ec3abaSSangbeom Kim struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 56d2ec3abaSSangbeom Kim unsigned long mclk_freq; 57d2ec3abaSSangbeom Kim int rfs, ret; 58d2ec3abaSSangbeom Kim 59d2ec3abaSSangbeom Kim switch(params_rate(params)) { 60d2ec3abaSSangbeom Kim case 8000: 61d2ec3abaSSangbeom Kim rfs = 512; 62d2ec3abaSSangbeom Kim break; 63d2ec3abaSSangbeom Kim default: 64d2ec3abaSSangbeom Kim dev_err(cpu_dai->dev, "%s:%d Sampling Rate %u not supported!\n", 65d2ec3abaSSangbeom Kim __func__, __LINE__, params_rate(params)); 66d2ec3abaSSangbeom Kim return -EINVAL; 67d2ec3abaSSangbeom Kim } 68d2ec3abaSSangbeom Kim 69d2ec3abaSSangbeom Kim mclk_freq = params_rate(params) * rfs; 70d2ec3abaSSangbeom Kim 71d2ec3abaSSangbeom Kim /* Set the codec DAI configuration */ 72d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B 73d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_IB_NF 74d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_CBS_CFS); 75d2ec3abaSSangbeom Kim if (ret < 0) 76d2ec3abaSSangbeom Kim return ret; 77d2ec3abaSSangbeom Kim 78d2ec3abaSSangbeom Kim /* Set the cpu DAI configuration */ 79d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_B 80d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_IB_NF 81d2ec3abaSSangbeom Kim | SND_SOC_DAIFMT_CBS_CFS); 82d2ec3abaSSangbeom Kim if (ret < 0) 83d2ec3abaSSangbeom Kim return ret; 84d2ec3abaSSangbeom Kim 85d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, 86d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 87d2ec3abaSSangbeom Kim if (ret < 0) 88d2ec3abaSSangbeom Kim return ret; 89d2ec3abaSSangbeom Kim 90d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, 91d2ec3abaSSangbeom Kim SMDK_WM8994_FREQ, mclk_freq); 92d2ec3abaSSangbeom Kim if (ret < 0) 93d2ec3abaSSangbeom Kim return ret; 94d2ec3abaSSangbeom Kim 95d2ec3abaSSangbeom Kim /* Set PCM source clock on CPU */ 96d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX, 97d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 98d2ec3abaSSangbeom Kim if (ret < 0) 99d2ec3abaSSangbeom Kim return ret; 100d2ec3abaSSangbeom Kim 101d2ec3abaSSangbeom Kim /* Set SCLK_DIV for making bclk */ 102d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs); 103d2ec3abaSSangbeom Kim if (ret < 0) 104d2ec3abaSSangbeom Kim return ret; 105d2ec3abaSSangbeom Kim 106d2ec3abaSSangbeom Kim return 0; 107d2ec3abaSSangbeom Kim } 108d2ec3abaSSangbeom Kim 109d2ec3abaSSangbeom Kim static struct snd_soc_ops smdk_wm8994_pcm_ops = { 110d2ec3abaSSangbeom Kim .hw_params = smdk_wm8994_pcm_hw_params, 111d2ec3abaSSangbeom Kim }; 112d2ec3abaSSangbeom Kim 113d2ec3abaSSangbeom Kim static struct snd_soc_dai_link smdk_dai[] = { 114d2ec3abaSSangbeom Kim { 115d2ec3abaSSangbeom Kim .name = "WM8994 PAIF PCM", 116d2ec3abaSSangbeom Kim .stream_name = "Primary PCM", 117d2ec3abaSSangbeom Kim .cpu_dai_name = "samsung-pcm.0", 118d2ec3abaSSangbeom Kim .codec_dai_name = "wm8994-aif1", 119d2ec3abaSSangbeom Kim .platform_name = "samsung-audio", 120d2ec3abaSSangbeom Kim .codec_name = "wm8994-codec", 121d2ec3abaSSangbeom Kim .ops = &smdk_wm8994_pcm_ops, 122d2ec3abaSSangbeom Kim }, 123d2ec3abaSSangbeom Kim }; 124d2ec3abaSSangbeom Kim 125d2ec3abaSSangbeom Kim static struct snd_soc_card smdk_pcm = { 126d2ec3abaSSangbeom Kim .name = "SMDK-PCM", 127095d79dcSAxel Lin .owner = THIS_MODULE, 128d2ec3abaSSangbeom Kim .dai_link = smdk_dai, 129d2ec3abaSSangbeom Kim .num_links = 1, 130d2ec3abaSSangbeom Kim }; 131d2ec3abaSSangbeom Kim 132d2ec3abaSSangbeom Kim static int __devinit snd_smdk_probe(struct platform_device *pdev) 133d2ec3abaSSangbeom Kim { 134d2ec3abaSSangbeom Kim int ret = 0; 135d2ec3abaSSangbeom Kim 136d2ec3abaSSangbeom Kim smdk_pcm.dev = &pdev->dev; 137d2ec3abaSSangbeom Kim ret = snd_soc_register_card(&smdk_pcm); 138d2ec3abaSSangbeom Kim if (ret) { 139d2ec3abaSSangbeom Kim dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); 140d2ec3abaSSangbeom Kim return ret; 141d2ec3abaSSangbeom Kim } 142d2ec3abaSSangbeom Kim 143d2ec3abaSSangbeom Kim return 0; 144d2ec3abaSSangbeom Kim } 145d2ec3abaSSangbeom Kim 146d2ec3abaSSangbeom Kim static int __devexit snd_smdk_remove(struct platform_device *pdev) 147d2ec3abaSSangbeom Kim { 148d2ec3abaSSangbeom Kim snd_soc_unregister_card(&smdk_pcm); 149d2ec3abaSSangbeom Kim platform_set_drvdata(pdev, NULL); 150d2ec3abaSSangbeom Kim return 0; 151d2ec3abaSSangbeom Kim } 152d2ec3abaSSangbeom Kim 153d2ec3abaSSangbeom Kim static struct platform_driver snd_smdk_driver = { 154d2ec3abaSSangbeom Kim .driver = { 155d2ec3abaSSangbeom Kim .owner = THIS_MODULE, 156d2ec3abaSSangbeom Kim .name = "samsung-smdk-pcm", 157d2ec3abaSSangbeom Kim }, 158d2ec3abaSSangbeom Kim .probe = snd_smdk_probe, 159d2ec3abaSSangbeom Kim .remove = __devexit_p(snd_smdk_remove), 160d2ec3abaSSangbeom Kim }; 161d2ec3abaSSangbeom Kim 1621175f711SAxel Lin module_platform_driver(snd_smdk_driver); 163d2ec3abaSSangbeom Kim 164d2ec3abaSSangbeom Kim MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>"); 165d2ec3abaSSangbeom Kim MODULE_DESCRIPTION("ALSA SoC SMDK WM8994 for PCM"); 166d2ec3abaSSangbeom Kim MODULE_LICENSE("GPL"); 167