1f9ff3807SSylwester Nawrocki // SPDX-License-Identifier: GPL-2.0+ 2f9ff3807SSylwester Nawrocki // 3f9ff3807SSylwester Nawrocki // Copyright (c) 2011 Samsung Electronics Co., Ltd 4f9ff3807SSylwester Nawrocki // http://www.samsung.com 5f9ff3807SSylwester Nawrocki 6da155d5bSPaul Gortmaker #include <linux/module.h> 7d2ec3abaSSangbeom Kim #include <sound/soc.h> 8d2ec3abaSSangbeom Kim #include <sound/pcm.h> 9d2ec3abaSSangbeom Kim #include <sound/pcm_params.h> 10d2ec3abaSSangbeom Kim 11d2ec3abaSSangbeom Kim #include "../codecs/wm8994.h" 12d2ec3abaSSangbeom Kim #include "pcm.h" 13d2ec3abaSSangbeom Kim 14d2ec3abaSSangbeom Kim /* 15d2ec3abaSSangbeom Kim * Board Settings: 16d2ec3abaSSangbeom Kim * o '1' means 'ON' 17d2ec3abaSSangbeom Kim * o '0' means 'OFF' 18d2ec3abaSSangbeom Kim * o 'X' means 'Don't care' 19d2ec3abaSSangbeom Kim * 20d2ec3abaSSangbeom Kim * SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111 21d2ec3abaSSangbeom Kim */ 22d2ec3abaSSangbeom Kim 23d2ec3abaSSangbeom Kim /* 24d2ec3abaSSangbeom Kim * Configure audio route as :- 25d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1' on,on 26d2ec3abaSSangbeom Kim * $ amixer sset 'Right Headphone Mux' 'DAC' 27d2ec3abaSSangbeom Kim * $ amixer sset 'Left Headphone Mux' 'DAC' 28d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1R Mixer AIF1.1' on 29d2ec3abaSSangbeom Kim * $ amixer sset 'DAC1L Mixer AIF1.1' on 30d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L' on 31d2ec3abaSSangbeom Kim * $ amixer sset 'IN2L PGA IN2LN' on 32d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINL IN2L' on 33d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on 34d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R' on 35d2ec3abaSSangbeom Kim * $ amixer sset 'IN2R PGA IN2RN' on 36d2ec3abaSSangbeom Kim * $ amixer sset 'MIXINR IN2R' on 37d2ec3abaSSangbeom Kim * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on 38d2ec3abaSSangbeom Kim */ 39d2ec3abaSSangbeom Kim 40d2ec3abaSSangbeom Kim /* SMDK has a 16.9344MHZ crystal attached to WM8994 */ 41d2ec3abaSSangbeom Kim #define SMDK_WM8994_FREQ 16934400 42d2ec3abaSSangbeom Kim 43d2ec3abaSSangbeom Kim static int smdk_wm8994_pcm_hw_params(struct snd_pcm_substream *substream, 44d2ec3abaSSangbeom Kim struct snd_pcm_hw_params *params) 45d2ec3abaSSangbeom Kim { 46d2ec3abaSSangbeom Kim struct snd_soc_pcm_runtime *rtd = substream->private_data; 47d2ec3abaSSangbeom Kim struct snd_soc_dai *codec_dai = rtd->codec_dai; 48d2ec3abaSSangbeom Kim struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 49d2ec3abaSSangbeom Kim unsigned long mclk_freq; 50d2ec3abaSSangbeom Kim int rfs, ret; 51d2ec3abaSSangbeom Kim 52d2ec3abaSSangbeom Kim switch(params_rate(params)) { 53d2ec3abaSSangbeom Kim case 8000: 54d2ec3abaSSangbeom Kim rfs = 512; 55d2ec3abaSSangbeom Kim break; 56d2ec3abaSSangbeom Kim default: 57d2ec3abaSSangbeom Kim dev_err(cpu_dai->dev, "%s:%d Sampling Rate %u not supported!\n", 58d2ec3abaSSangbeom Kim __func__, __LINE__, params_rate(params)); 59d2ec3abaSSangbeom Kim return -EINVAL; 60d2ec3abaSSangbeom Kim } 61d2ec3abaSSangbeom Kim 62d2ec3abaSSangbeom Kim mclk_freq = params_rate(params) * rfs; 63d2ec3abaSSangbeom Kim 64d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, 65d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 66d2ec3abaSSangbeom Kim if (ret < 0) 67d2ec3abaSSangbeom Kim return ret; 68d2ec3abaSSangbeom Kim 69d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, 70d2ec3abaSSangbeom Kim SMDK_WM8994_FREQ, mclk_freq); 71d2ec3abaSSangbeom Kim if (ret < 0) 72d2ec3abaSSangbeom Kim return ret; 73d2ec3abaSSangbeom Kim 74d2ec3abaSSangbeom Kim /* Set PCM source clock on CPU */ 75d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX, 76d2ec3abaSSangbeom Kim mclk_freq, SND_SOC_CLOCK_IN); 77d2ec3abaSSangbeom Kim if (ret < 0) 78d2ec3abaSSangbeom Kim return ret; 79d2ec3abaSSangbeom Kim 80d2ec3abaSSangbeom Kim /* Set SCLK_DIV for making bclk */ 81d2ec3abaSSangbeom Kim ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs); 82d2ec3abaSSangbeom Kim if (ret < 0) 83d2ec3abaSSangbeom Kim return ret; 84d2ec3abaSSangbeom Kim 85d2ec3abaSSangbeom Kim return 0; 86d2ec3abaSSangbeom Kim } 87d2ec3abaSSangbeom Kim 88d2ec3abaSSangbeom Kim static struct snd_soc_ops smdk_wm8994_pcm_ops = { 89d2ec3abaSSangbeom Kim .hw_params = smdk_wm8994_pcm_hw_params, 90d2ec3abaSSangbeom Kim }; 91d2ec3abaSSangbeom Kim 92245139b2SKuninori Morimoto SND_SOC_DAILINK_DEFS(paif_pcm, 93245139b2SKuninori Morimoto DAILINK_COMP_ARRAY(COMP_CPU("samsung-pcm.0")), 94245139b2SKuninori Morimoto DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")), 95245139b2SKuninori Morimoto DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-pcm.0"))); 96245139b2SKuninori Morimoto 97d2ec3abaSSangbeom Kim static struct snd_soc_dai_link smdk_dai[] = { 98d2ec3abaSSangbeom Kim { 99d2ec3abaSSangbeom Kim .name = "WM8994 PAIF PCM", 100d2ec3abaSSangbeom Kim .stream_name = "Primary PCM", 101fce20bf8SLars-Peter Clausen .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | 102fce20bf8SLars-Peter Clausen SND_SOC_DAIFMT_CBS_CFS, 103d2ec3abaSSangbeom Kim .ops = &smdk_wm8994_pcm_ops, 104245139b2SKuninori Morimoto SND_SOC_DAILINK_REG(paif_pcm), 105d2ec3abaSSangbeom Kim }, 106d2ec3abaSSangbeom Kim }; 107d2ec3abaSSangbeom Kim 108d2ec3abaSSangbeom Kim static struct snd_soc_card smdk_pcm = { 109d2ec3abaSSangbeom Kim .name = "SMDK-PCM", 110095d79dcSAxel Lin .owner = THIS_MODULE, 111d2ec3abaSSangbeom Kim .dai_link = smdk_dai, 112d2ec3abaSSangbeom Kim .num_links = 1, 113d2ec3abaSSangbeom Kim }; 114d2ec3abaSSangbeom Kim 115fdca21adSBill Pemberton static int snd_smdk_probe(struct platform_device *pdev) 116d2ec3abaSSangbeom Kim { 117d2ec3abaSSangbeom Kim int ret = 0; 118d2ec3abaSSangbeom Kim 119d2ec3abaSSangbeom Kim smdk_pcm.dev = &pdev->dev; 120c583883eSTushar Behera ret = devm_snd_soc_register_card(&pdev->dev, &smdk_pcm); 1211a1b3743SMarek Szyprowski if (ret && ret != -EPROBE_DEFER) 122d2ec3abaSSangbeom Kim dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); 123c583883eSTushar Behera 124d2ec3abaSSangbeom Kim return ret; 125d2ec3abaSSangbeom Kim } 126d2ec3abaSSangbeom Kim 127d2ec3abaSSangbeom Kim static struct platform_driver snd_smdk_driver = { 128d2ec3abaSSangbeom Kim .driver = { 129d2ec3abaSSangbeom Kim .name = "samsung-smdk-pcm", 130d2ec3abaSSangbeom Kim }, 131d2ec3abaSSangbeom Kim .probe = snd_smdk_probe, 132d2ec3abaSSangbeom Kim }; 133d2ec3abaSSangbeom Kim 1341175f711SAxel Lin module_platform_driver(snd_smdk_driver); 135d2ec3abaSSangbeom Kim 136d2ec3abaSSangbeom Kim MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>"); 137d2ec3abaSSangbeom Kim MODULE_DESCRIPTION("ALSA SoC SMDK WM8994 for PCM"); 138d2ec3abaSSangbeom Kim MODULE_LICENSE("GPL"); 139