diff options
Diffstat (limited to 'sound/soc/samsung/smdk_wm8580pcm.c')
| -rw-r--r-- | sound/soc/samsung/smdk_wm8580pcm.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/sound/soc/samsung/smdk_wm8580pcm.c b/sound/soc/samsung/smdk_wm8580pcm.c deleted file mode 100644 index a6d2233..0000000 --- a/sound/soc/samsung/smdk_wm8580pcm.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * sound/soc/samsung/smdk_wm8580pcm.c - * - * Copyright (c) 2011 Samsung Electronics Co. Ltd - * - * 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 <sound/soc.h> -#include <sound/pcm_params.h> -#include <sound/pcm.h> - -#include <asm/mach-types.h> - -#include "../codecs/wm8580.h" -#include "pcm.h" - -/* - * Board Settings: - * o '1' means 'ON' - * o '0' means 'OFF' - * o 'X' means 'Don't care' - * - * SMDK6410 Base B/D: CFG1-0000, CFG2-1111 - * SMDKC110, SMDKV210: CFGB11-100100, CFGB12-0000 - */ - -#define SMDK_WM8580_EXT_OSC 12000000 -#define SMDK_WM8580_EXT_MCLK 4096000 -#define SMDK_WM8580_EXT_VOICE 2048000 - -static unsigned long mclk_freq; -static unsigned long xtal_freq; - -/* - * If MCLK clock directly gets from XTAL, we don't have to use PLL - * to make MCLK, but if XTAL clock source connects with other codec - * pin (like XTI), we should have to set codec's PLL to make MCLK. - * Because Samsung SoC does not support pcmcdclk output like I2S. - */ - -static int smdk_wm8580_pcm_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 rfs, ret; - - switch (params_rate(params)) { - case 8000: - break; - default: - printk(KERN_ERR "%s:%d Sampling Rate %u not supported!\n", - __func__, __LINE__, params_rate(params)); - return -EINVAL; - } - - rfs = mclk_freq / params_rate(params) / 2; - - if (mclk_freq == xtal_freq) { - ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_MCLK, - mclk_freq, SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, - WM8580_CLKSRC_MCLK); - if (ret < 0) - return ret; - } else { - ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA, - mclk_freq, SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, - WM8580_CLKSRC_PLLA); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0, - xtal_freq, mclk_freq); - if (ret < 0) - return ret; - } - - /* Set PCM source clock on CPU */ - ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX, - mclk_freq, SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - - /* Set SCLK_DIV for making bclk */ - ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs); - if (ret < 0) - return ret; - - return 0; -} - -static struct snd_soc_ops smdk_wm8580_pcm_ops = { - .hw_params = smdk_wm8580_pcm_hw_params, -}; - -#define SMDK_DAI_FMT (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | \ - SND_SOC_DAIFMT_CBS_CFS) - -static struct snd_soc_dai_link smdk_dai[] = { - { - .name = "WM8580 PAIF PCM RX", - .stream_name = "Playback", - .cpu_dai_name = "samsung-pcm.0", - .codec_dai_name = "wm8580-hifi-playback", - .platform_name = "samsung-audio", - .codec_name = "wm8580.0-001b", - .dai_fmt = SMDK_DAI_FMT, - .ops = &smdk_wm8580_pcm_ops, - }, { - .name = "WM8580 PAIF PCM TX", - .stream_name = "Capture", - .cpu_dai_name = "samsung-pcm.0", - .codec_dai_name = "wm8580-hifi-capture", - .platform_name = "samsung-pcm.0", - .codec_name = "wm8580.0-001b", - .dai_fmt = SMDK_DAI_FMT, - .ops = &smdk_wm8580_pcm_ops, - }, -}; - -static struct snd_soc_card smdk_pcm = { - .name = "SMDK-PCM", - .owner = THIS_MODULE, - .dai_link = smdk_dai, - .num_links = 2, -}; - -/* - * After SMDKC110 Base Board's Rev is '0.1', 12MHz External OSC(X1) - * is absent (or not connected), so we connect EXT_VOICE_CLK(OSC4), - * 2.0484Mhz, directly with MCLK both Codec and SoC. - */ -static int snd_smdk_probe(struct platform_device *pdev) -{ - int ret = 0; - - xtal_freq = SMDK_WM8580_EXT_OSC; - mclk_freq = SMDK_WM8580_EXT_MCLK; - - if (machine_is_smdkc110() || machine_is_smdkv210()) - xtal_freq = mclk_freq = SMDK_WM8580_EXT_VOICE; - - smdk_pcm.dev = &pdev->dev; - ret = devm_snd_soc_register_card(&pdev->dev, &smdk_pcm); - if (ret) - dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); - - return ret; -} - -static struct platform_driver snd_smdk_driver = { - .driver = { - .name = "samsung-smdk-pcm", - }, - .probe = snd_smdk_probe, -}; - -module_platform_driver(snd_smdk_driver); - -MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>"); -MODULE_DESCRIPTION("ALSA SoC SMDK WM8580 for PCM"); -MODULE_LICENSE("GPL"); |
