[net-next-2.6.git] / sound / soc / blackfin / bf5xx-ad1836.c

/*
 * File:         sound/soc/blackfin/bf5xx-ad1836.c
 * Author:       Barry Song <Barry.Song@analog.com>
 *
 * Created:      Aug 4 2009
 * Description:  Board driver for ad1836 sound chip
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * 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/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm_params.h>

#include <asm/blackfin.h>
#include <asm/cacheflush.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/portmux.h>

#include "../codecs/ad1836.h"
#include "bf5xx-sport.h"

#include "bf5xx-tdm-pcm.h"
#include "bf5xx-tdm.h"

static struct snd_soc_card bf5xx_ad1836;

static int bf5xx_ad1836_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;

	cpu_dai->private_data = sport_handle;
	return 0;
}

static int bf5xx_ad1836_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 *cpu_dai = rtd->dai->cpu_dai;
	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
	int ret = 0;
	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
		SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
		SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	/* set cpu DAI channel mapping */
	ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
		channel_map, ARRAY_SIZE(channel_map), channel_map);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops bf5xx_ad1836_ops = {
	.startup = bf5xx_ad1836_startup,
	.hw_params = bf5xx_ad1836_hw_params,
};

static struct snd_soc_dai_link bf5xx_ad1836_dai = {
	.name = "ad1836",
	.stream_name = "AD1836",
	.cpu_dai = &bf5xx_tdm_dai,
	.codec_dai = &ad1836_dai,
	.ops = &bf5xx_ad1836_ops,
};

static struct snd_soc_card bf5xx_ad1836 = {
	.name = "bf5xx_ad1836",
	.platform = &bf5xx_tdm_soc_platform,
	.dai_link = &bf5xx_ad1836_dai,
	.num_links = 1,
};

static struct snd_soc_device bf5xx_ad1836_snd_devdata = {
	.card = &bf5xx_ad1836,
	.codec_dev = &soc_codec_dev_ad1836,
};

static struct platform_device *bfxx_ad1836_snd_device;

static int __init bf5xx_ad1836_init(void)
{
	int ret;

	bfxx_ad1836_snd_device = platform_device_alloc("soc-audio", -1);
	if (!bfxx_ad1836_snd_device)
		return -ENOMEM;

	platform_set_drvdata(bfxx_ad1836_snd_device, &bf5xx_ad1836_snd_devdata);
	bf5xx_ad1836_snd_devdata.dev = &bfxx_ad1836_snd_device->dev;
	ret = platform_device_add(bfxx_ad1836_snd_device);

	if (ret)
		platform_device_put(bfxx_ad1836_snd_device);

	return ret;
}

static void __exit bf5xx_ad1836_exit(void)
{
	platform_device_unregister(bfxx_ad1836_snd_device);
}

module_init(bf5xx_ad1836_init);
module_exit(bf5xx_ad1836_exit);

/* Module information */
MODULE_AUTHOR("Barry Song");
MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
dce944db BS	1	/*
	2	* File: sound/soc/blackfin/bf5xx-ad1836.c
	3	* Author: Barry Song <Barry.Song@analog.com>
	4	*
	5	* Created: Aug 4 2009
	6	* Description: Board driver for ad1836 sound chip
	7	*
	8	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/moduleparam.h>
	19	#include <linux/device.h>
	20	#include <sound/core.h>
	21	#include <sound/pcm.h>
	22	#include <sound/soc.h>
	23	#include <sound/soc-dapm.h>
	24	#include <sound/pcm_params.h>
	25
	26	#include <asm/blackfin.h>
	27	#include <asm/cacheflush.h>
	28	#include <asm/irq.h>
	29	#include <asm/dma.h>
	30	#include <asm/portmux.h>
	31
	32	#include "../codecs/ad1836.h"
	33	#include "bf5xx-sport.h"
	34
	35	#include "bf5xx-tdm-pcm.h"
	36	#include "bf5xx-tdm.h"
	37
	38	static struct snd_soc_card bf5xx_ad1836;
	39
	40	static int bf5xx_ad1836_startup(struct snd_pcm_substream *substream)
	41	{
	42	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	43	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	44
	45	cpu_dai->private_data = sport_handle;
	46	return 0;
	47	}
	48
	49	static int bf5xx_ad1836_hw_params(struct snd_pcm_substream *substream,
	50	struct snd_pcm_hw_params *params)
	51	{
	52	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	53	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	54	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
08db48f1	55	unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
dce944db BS	56	int ret = 0;
	57	/* set cpu DAI configuration */
	58	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
	59	SND_SOC_DAIFMT_IB_IF \| SND_SOC_DAIFMT_CBM_CFM);
	60	if (ret < 0)
	61	return ret;
	62
	63	/* set codec DAI configuration */
	64	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A \|
	65	SND_SOC_DAIFMT_IB_IF \| SND_SOC_DAIFMT_CBM_CFM);
	66	if (ret < 0)
	67	return ret;
	68
08db48f1 BS	69	/* set cpu DAI channel mapping */
	70	ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
	71	channel_map, ARRAY_SIZE(channel_map), channel_map);
	72	if (ret < 0)
	73	return ret;
	74
dce944db BS	75	return 0;
	76	}
	77
	78	static struct snd_soc_ops bf5xx_ad1836_ops = {
	79	.startup = bf5xx_ad1836_startup,
	80	.hw_params = bf5xx_ad1836_hw_params,
	81	};
	82
	83	static struct snd_soc_dai_link bf5xx_ad1836_dai = {
	84	.name = "ad1836",
	85	.stream_name = "AD1836",
	86	.cpu_dai = &bf5xx_tdm_dai,
	87	.codec_dai = &ad1836_dai,
	88	.ops = &bf5xx_ad1836_ops,
	89	};
	90
	91	static struct snd_soc_card bf5xx_ad1836 = {
	92	.name = "bf5xx_ad1836",
	93	.platform = &bf5xx_tdm_soc_platform,
	94	.dai_link = &bf5xx_ad1836_dai,
	95	.num_links = 1,
	96	};
	97
	98	static struct snd_soc_device bf5xx_ad1836_snd_devdata = {
	99	.card = &bf5xx_ad1836,
	100	.codec_dev = &soc_codec_dev_ad1836,
	101	};
	102
	103	static struct platform_device *bfxx_ad1836_snd_device;
	104
	105	static int __init bf5xx_ad1836_init(void)
	106	{
	107	int ret;
	108
	109	bfxx_ad1836_snd_device = platform_device_alloc("soc-audio", -1);
	110	if (!bfxx_ad1836_snd_device)
	111	return -ENOMEM;
	112
	113	platform_set_drvdata(bfxx_ad1836_snd_device, &bf5xx_ad1836_snd_devdata);
	114	bf5xx_ad1836_snd_devdata.dev = &bfxx_ad1836_snd_device->dev;
	115	ret = platform_device_add(bfxx_ad1836_snd_device);
	116
	117	if (ret)
	118	platform_device_put(bfxx_ad1836_snd_device);
	119
	120	return ret;
	121	}
	122
	123	static void __exit bf5xx_ad1836_exit(void)
	124	{
	125	platform_device_unregister(bfxx_ad1836_snd_device);
	126	}
	127
	128	module_init(bf5xx_ad1836_init);
	129	module_exit(bf5xx_ad1836_exit);
	130
	131	/* Module information */
	132	MODULE_AUTHOR("Barry Song");
	133	MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
	134	MODULE_LICENSE("GPL");
	135