projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| d2ec3aba SK |
1 | /* |
| 2 | * sound/soc/samsung/smdk_wm8994pcm.c | |
| 3 | * | |
| 4 | * Copyright (c) 2011 Samsung Electronics Co., Ltd | |
| 5 | * http://www.samsung.com | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the | |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 10 | * option) any later version. | |
| 11 | */ | |
| da155d5b | 12 | #include <linux/module.h> |
| d2ec3aba SK |
13 | #include <sound/soc.h> |
| 14 | #include <sound/pcm.h> | |
| 15 | #include <sound/pcm_params.h> | |
| 16 | ||
| 17 | #include "../codecs/wm8994.h" | |
| 18 | #include "dma.h" | |
| 19 | #include "pcm.h" | |
| 20 | ||
| 21 | /* | |
| 22 | * Board Settings: | |
| 23 | * o '1' means 'ON' | |
| 24 | * o '0' means 'OFF' | |
| 25 | * o 'X' means 'Don't care' | |
| 26 | * | |
| 27 | * SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111 | |
| 28 | */ | |
| 29 | ||
| 30 | /* | |
| 31 | * Configure audio route as :- | |
| 32 | * $ amixer sset 'DAC1' on,on | |
| 33 | * $ amixer sset 'Right Headphone Mux' 'DAC' | |
| 34 | * $ amixer sset 'Left Headphone Mux' 'DAC' | |
| 35 | * $ amixer sset 'DAC1R Mixer AIF1.1' on | |
| 36 | * $ amixer sset 'DAC1L Mixer AIF1.1' on | |
| 37 | * $ amixer sset 'IN2L' on | |
| 38 | * $ amixer sset 'IN2L PGA IN2LN' on | |
| 39 | * $ amixer sset 'MIXINL IN2L' on | |
| 40 | * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on | |
| 41 | * $ amixer sset 'IN2R' on | |
| 42 | * $ amixer sset 'IN2R PGA IN2RN' on | |
| 43 | * $ amixer sset 'MIXINR IN2R' on | |
| 44 | * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on | |
| 45 | */ | |
| 46 | ||
| 47 | /* SMDK has a 16.9344MHZ crystal attached to WM8994 */ | |
| 48 | #define SMDK_WM8994_FREQ 16934400 | |
| 49 | ||
| 50 | static int smdk_wm8994_pcm_hw_params(struct snd_pcm_substream *substream, | |
| 51 | struct snd_pcm_hw_params *params) | |
| 52 | { | |
| 53 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
| 54 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
| 55 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
| 56 | unsigned long mclk_freq; | |
| 57 | int rfs, ret; | |
| 58 | ||
| 59 | switch(params_rate(params)) { | |
| 60 | case 8000: | |
| 61 | rfs = 512; | |
| 62 | break; | |
| 63 | default: | |
| 64 | dev_err(cpu_dai->dev, "%s:%d Sampling Rate %u not supported!\n", | |
| 65 | __func__, __LINE__, params_rate(params)); | |
| 66 | return -EINVAL; | |
| 67 | } | |
| 68 | ||
| 69 | mclk_freq = params_rate(params) * rfs; | |
| 70 | ||
| 71 | /* Set the codec DAI configuration */ | |
| 72 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | |
| 73 | | SND_SOC_DAIFMT_IB_NF | |
| 74 | | SND_SOC_DAIFMT_CBS_CFS); | |
| 75 | if (ret < 0) | |
| 76 | return ret; | |
| 77 | ||
| 78 | /* Set the cpu DAI configuration */ | |
| 79 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_B | |
| 80 | | SND_SOC_DAIFMT_IB_NF | |
| 81 | | SND_SOC_DAIFMT_CBS_CFS); | |
| 82 | if (ret < 0) | |
| 83 | return ret; | |
| 84 | ||
| 85 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, | |
| 86 | mclk_freq, SND_SOC_CLOCK_IN); | |
| 87 | if (ret < 0) | |
| 88 | return ret; | |
| 89 | ||
| 90 | ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, | |
| 91 | SMDK_WM8994_FREQ, mclk_freq); | |
| 92 | if (ret < 0) | |
| 93 | return ret; | |
| 94 | ||
| 95 | /* Set PCM source clock on CPU */ | |
| 96 | ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX, | |
| 97 | mclk_freq, SND_SOC_CLOCK_IN); | |
| 98 | if (ret < 0) | |
| 99 | return ret; | |
| 100 | ||
| 101 | /* Set SCLK_DIV for making bclk */ | |
| 102 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs); | |
| 103 | if (ret < 0) | |
| 104 | return ret; | |
| 105 | ||
| 106 | return 0; | |
| 107 | } | |
| 108 | ||
| 109 | static struct snd_soc_ops smdk_wm8994_pcm_ops = { | |
| 110 | .hw_params = smdk_wm8994_pcm_hw_params, | |
| 111 | }; | |
| 112 | ||
| 113 | static struct snd_soc_dai_link smdk_dai[] = { | |
| 114 | { | |
| 115 | .name = "WM8994 PAIF PCM", | |
| 116 | .stream_name = "Primary PCM", | |
| 117 | .cpu_dai_name = "samsung-pcm.0", | |
| 118 | .codec_dai_name = "wm8994-aif1", | |
| a08485d8 | 119 | .platform_name = "samsung-pcm.0", |
| d2ec3aba SK |
120 | .codec_name = "wm8994-codec", |
| 121 | .ops = &smdk_wm8994_pcm_ops, | |
| 122 | }, | |
| 123 | }; | |
| 124 | ||
| 125 | static struct snd_soc_card smdk_pcm = { | |
| 126 | .name = "SMDK-PCM", | |
| 095d79dc | 127 | .owner = THIS_MODULE, |
| d2ec3aba SK |
128 | .dai_link = smdk_dai, |
| 129 | .num_links = 1, | |
| 130 | }; | |
| 131 | ||
| fdca21ad | 132 | static int snd_smdk_probe(struct platform_device *pdev) |
| d2ec3aba SK |
133 | { |
| 134 | int ret = 0; | |
| 135 | ||
| 136 | smdk_pcm.dev = &pdev->dev; | |
| 137 | ret = snd_soc_register_card(&smdk_pcm); | |
| 138 | if (ret) { | |
| 139 | dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); | |
| 140 | return ret; | |
| 141 | } | |
| 142 | ||
| 143 | return 0; | |
| 144 | } | |
| 145 | ||
| fdca21ad | 146 | static int snd_smdk_remove(struct platform_device *pdev) |
| d2ec3aba SK |
147 | { |
| 148 | snd_soc_unregister_card(&smdk_pcm); | |
| 149 | platform_set_drvdata(pdev, NULL); | |
| 150 | return 0; | |
| 151 | } | |
| 152 | ||
| 153 | static struct platform_driver snd_smdk_driver = { | |
| 154 | .driver = { | |
| 155 | .owner = THIS_MODULE, | |
| 156 | .name = "samsung-smdk-pcm", | |
| 157 | }, | |
| 158 | .probe = snd_smdk_probe, | |
| fdca21ad | 159 | .remove = snd_smdk_remove, |
| d2ec3aba SK |
160 | }; |
| 161 | ||
| 1175f711 | 162 | module_platform_driver(snd_smdk_driver); |
| d2ec3aba SK |
163 | |
| 164 | MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>"); | |
| 165 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8994 for PCM"); | |
| 166 | MODULE_LICENSE("GPL"); |