[deliverable/linux.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/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"

static struct snd_soc_card bf5xx_ad1836;

static int bf5xx_ad1836_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
	int ret = 0;

	/* 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;

	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32);
	if (ret < 0)
		return ret;

	return 0;
}

#define BF5XX_AD1836_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \
				SND_SOC_DAIFMT_CBM_CFM)

static struct snd_soc_dai_link bf5xx_ad1836_dai = {
	.name = "ad1836",
	.stream_name = "AD1836",
	.codec_dai_name = "ad1836-hifi",
	.platform_name = "bfin-i2s-pcm-audio",
	.dai_fmt = BF5XX_AD1836_DAIFMT,
	.init = bf5xx_ad1836_init,
};

static struct snd_soc_card bf5xx_ad1836 = {
	.name = "bfin-ad1836",
	.owner = THIS_MODULE,
	.dai_link = &bf5xx_ad1836_dai,
	.num_links = 1,
};

static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &bf5xx_ad1836;
	const char **link_name;
	int ret;

	link_name = pdev->dev.platform_data;
	if (!link_name) {
		dev_err(&pdev->dev, "No platform data supplied\n");
		return -EINVAL;
	}
	bf5xx_ad1836_dai.cpu_dai_name = link_name[0];
	bf5xx_ad1836_dai.codec_name = link_name[1];

	card->dev = &pdev->dev;
	platform_set_drvdata(pdev, card);

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret)
		dev_err(&pdev->dev, "Failed to register card\n");
	return ret;
}

static struct platform_driver bf5xx_ad1836_driver = {
	.driver = {
		.name = "bfin-snd-ad1836",
		.pm = &snd_soc_pm_ops,
	},
	.probe = bf5xx_ad1836_driver_probe,
};
module_platform_driver(bf5xx_ad1836_driver);

/* 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>
dce944db BS	23	#include <sound/pcm_params.h>
	24
	25	#include <asm/blackfin.h>
	26	#include <asm/cacheflush.h>
	27	#include <asm/irq.h>
	28	#include <asm/dma.h>
	29	#include <asm/portmux.h>
	30
	31	#include "../codecs/ad1836.h"
dce944db	32
dce944db BS	33	static struct snd_soc_card bf5xx_ad1836;
dce944db BS	34
34f40955	35	static int bf5xx_ad1836_init(struct snd_soc_pcm_runtime *rtd)
dce944db	36	{
f0fba2ad	37	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
08db48f1	38	unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
dce944db	39	int ret = 0;
dce944db	40
08db48f1 BS	41	/* set cpu DAI channel mapping */
	42	ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
	43	channel_map, ARRAY_SIZE(channel_map), channel_map);
	44	if (ret < 0)
	45	return ret;
	46
34f40955 LPC	47	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32);
	48	if (ret < 0)
	49	return ret;
	50
dce944db BS	51	return 0;
	52	}
	53
980b0bc6 LPC	54	#define BF5XX_AD1836_DAIFMT (SND_SOC_DAIFMT_DSP_A \| SND_SOC_DAIFMT_IB_IF \| \
	55	SND_SOC_DAIFMT_CBM_CFM)
	56
d14a13d3 SJ	57	static struct snd_soc_dai_link bf5xx_ad1836_dai = {
	58	.name = "ad1836",
	59	.stream_name = "AD1836",
	60	.codec_dai_name = "ad1836-hifi",
34f40955	61	.platform_name = "bfin-i2s-pcm-audio",
d14a13d3	62	.dai_fmt = BF5XX_AD1836_DAIFMT,
34f40955	63	.init = bf5xx_ad1836_init,
dce944db BS	64	};
	65
	66	static struct snd_soc_card bf5xx_ad1836 = {
bfe4ee0a	67	.name = "bfin-ad1836",
30e49530	68	.owner = THIS_MODULE,
d14a13d3	69	.dai_link = &bf5xx_ad1836_dai,
dce944db BS	70	.num_links = 1,
	71	};
	72
dca66dab	73	static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
dce944db	74	{
d14a13d3 SJ	75	struct snd_soc_card *card = &bf5xx_ad1836;
d14a13d3 SJ	76	const char **link_name;
dce944db BS	77	int ret;
dce944db BS	78
d14a13d3 SJ	79	link_name = pdev->dev.platform_data;
	80	if (!link_name) {
	81	dev_err(&pdev->dev, "No platform data supplied\n");
	82	return -EINVAL;
	83	}
	84	bf5xx_ad1836_dai.cpu_dai_name = link_name[0];
	85	bf5xx_ad1836_dai.codec_name = link_name[1];
dce944db	86
d14a13d3 SJ	87	card->dev = &pdev->dev;
d14a13d3 SJ	88	platform_set_drvdata(pdev, card);
dce944db	89
76b0d1f5	90	ret = devm_snd_soc_register_card(&pdev->dev, card);
dce944db	91	if (ret)
d14a13d3	92	dev_err(&pdev->dev, "Failed to register card\n");
dce944db BS	93	return ret;
	94	}
	95
d14a13d3 SJ	96	static struct platform_driver bf5xx_ad1836_driver = {
	97	.driver = {
	98	.name = "bfin-snd-ad1836",
d14a13d3 SJ	99	.pm = &snd_soc_pm_ops,
	100	},
	101	.probe = bf5xx_ad1836_driver_probe,
d14a13d3 SJ	102	};
d14a13d3 SJ	103	module_platform_driver(bf5xx_ad1836_driver);
dce944db BS	104
	105	/* Module information */
	106	MODULE_AUTHOR("Barry Song");
	107	MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
	108	MODULE_LICENSE("GPL");
	109