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- /*
- * smdk6400_wm8580_pcmif.c
- *
- * Copyright (C) 2007, Ryu Euiyoul
- * <steven,ryu@samsung.com, ryu.real@gmail.com>
- *
- * 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 <linux/moduleparam.h>
- #include <linux/timer.h>
- #include <linux/interrupt.h>
- #include <linux/platform_device.h>
- #include <linux/i2c.h>
- #include <sound/driver.h>
- #include <sound/core.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/soc-dapm.h>
- #include <asm/mach-types.h>
- #include <asm/hardware.h>
- #include <asm/arch/audio.h>
- #include <asm/io.h>
- #include <asm/arch/regs-s3c6410-clock.h>
- #include "../codecs/wm8580.h"
- #include "s3c-pcm.h"
- #include "s3c6410-pcmif.h"
- #ifdef CONFIG_SND_DEBUG
- #define s3cdbg(x...) printk(x)
- #else
- #define s3cdbg(x...)
- #endif
- static int smdk6410_hifi_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_codec_dai *codec_dai = rtd->dai->codec_dai;
- struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
- int ret = 0;
- int fs = params_rate(params);
- /*PCLK & SCLK gating enable*/
- writel(readl(S3C_PCLK_GATE)|S3C_CLKCON_PCLK_PCM0|S3C_CLKCON_PCLK_PCM1, S3C_PCLK_GATE);
- writel(readl(S3C_SCLK_GATE)|S3C_CLKCON_SCLK_AUDIO0|S3C_CLKCON_SCLK_AUDIO1, S3C_SCLK_GATE);
- /* set prescaler division for sample rate */
- ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, 0, fs);
- if (ret < 0)
- return ret;
- return 0;
- }
- /*
- * WM8580 HiFi DAI opserations.
- */
- static struct snd_soc_ops smdk6410_hifi_ops = {
- .hw_params = smdk6410_hifi_hw_params,
- };
- static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
- SND_SOC_DAPM_LINE("I2S Front Jack", NULL),
- SND_SOC_DAPM_LINE("I2S Center Jack", NULL),
- SND_SOC_DAPM_LINE("I2S Rear Jack", NULL),
- SND_SOC_DAPM_LINE("Line In Jack", NULL),
- };
- /* example machine audio_mapnections */
- static const char* audio_map[][3] = {
- { "I2S Front Jack", NULL, "VOUT1L" },
- { "I2S Front Jack", NULL, "VOUT1R" },
- { "I2S Center Jack", NULL, "VOUT2L" },
- { "I2S Center Jack", NULL, "VOUT2R" },
- { "I2S Rear Jack", NULL, "VOUT3L" },
- { "I2S Rear Jack", NULL, "VOUT3R" },
- { "AINL", NULL, "Line In Jack" },
- { "AINR", NULL, "Line In Jack" },
-
- {NULL, NULL, NULL},
- };
- static int smdk6410_wm8580_init(struct snd_soc_codec *codec)
- {
- int i;
- /* Add smdk6410 specific widgets */
- for (i = 0; i < ARRAY_SIZE(wm8580_dapm_widgets); i++)
- snd_soc_dapm_new_control(codec, &wm8580_dapm_widgets[i]);
- /* set up smdk6410 specific audio paths */
- for (i = 0; audio_map[i][0] != NULL; i++) {
- snd_soc_dapm_connect_input(codec, audio_map[i][0],
- audio_map[i][1], audio_map[i][2]);
- }
- /* No jack detect - mark all jacks as enabled */
- for (i = 0; i < ARRAY_SIZE(wm8580_dapm_widgets); i++)
- snd_soc_dapm_set_endpoint(codec,
- wm8580_dapm_widgets[i].name, 1);
- return 0;
- }
- static struct snd_soc_dai_link smdk6410_dai[] = {
- {
- .name = "WM8580",
- .stream_name = "WM8580 HiFi Playback",
- .cpu_dai = &s3c_pcmif_dai,
- .codec_dai = &wm8580_dai[1],
- .init = smdk6410_wm8580_init,
- .ops = &smdk6410_hifi_ops,
- },
- };
- static struct snd_soc_machine smdk6410 = {
- .name = "smdk6410",
- .dai_link = smdk6410_dai,
- .num_links = ARRAY_SIZE(smdk6410_dai),
- };
- static struct wm8580_setup_data smdk6410_wm8580_setup = {
- .i2c_address = 0x1b,
- };
- static struct snd_soc_device smdk6410_snd_devdata = {
- .machine = &smdk6410,
- .platform = &s3c24xx_soc_platform,
- .codec_dev = &soc_codec_dev_wm8580,
- .codec_data = &smdk6410_wm8580_setup,
- };
- static struct platform_device *smdk6410_snd_device;
- static int __init smdk6410_pcmif_init(void)
- {
- int ret;
- smdk6410_snd_device = platform_device_alloc("soc-audio", -1);
- if (!smdk6410_snd_device)
- return -ENOMEM;
- platform_set_drvdata(smdk6410_snd_device, &smdk6410_snd_devdata);
- smdk6410_snd_devdata.dev = &smdk6410_snd_device->dev;
- ret = platform_device_add(smdk6410_snd_device);
- if (ret)
- platform_device_put(smdk6410_snd_device);
-
- return ret;
- }
- static void __exit smdk6410_pcmif_exit(void)
- {
- platform_device_unregister(smdk6410_snd_device);
- }
- module_init(smdk6410_pcmif_init);
- module_exit(smdk6410_pcmif_exit);
- /* Module information */
- MODULE_AUTHOR("Ryu Euiyoul");
- MODULE_DESCRIPTION("ALSA SoC SMDK6410 WM8580");
- MODULE_LICENSE("GPL");
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