[deliverable/linux.git] / sound / soc / sirf / sirf-audio-port.c

/*
 * SiRF Audio port driver
 *
 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
 *
 * Licensed under GPLv2 or later.
 */
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>

struct sirf_audio_port {
	struct regmap *regmap;
	struct snd_dmaengine_dai_dma_data playback_dma_data;
	struct snd_dmaengine_dai_dma_data capture_dma_data;
};


static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
{
	struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
	snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
			&port->capture_dma_data);
	return 0;
}

static struct snd_soc_dai_driver sirf_audio_port_dai = {
	.probe = sirf_audio_port_dai_probe,
	.name = "sirf-audio-port",
	.id = 0,
	.playback = {
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
	.capture = {
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE,
	},
};

static const struct snd_soc_component_driver sirf_audio_port_component = {
	.name       = "sirf-audio-port",
};

static int sirf_audio_port_probe(struct platform_device *pdev)
{
	int ret;
	struct sirf_audio_port *port;

	port = devm_kzalloc(&pdev->dev,
			sizeof(struct sirf_audio_port), GFP_KERNEL);
	if (!port)
		return -ENOMEM;

	ret = devm_snd_soc_register_component(&pdev->dev,
			&sirf_audio_port_component, &sirf_audio_port_dai, 1);
	if (ret)
		return ret;

	platform_set_drvdata(pdev, port);
	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
}

static const struct of_device_id sirf_audio_port_of_match[] = {
	{ .compatible = "sirf,audio-port", },
	{}
};
MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);

static struct platform_driver sirf_audio_port_driver = {
	.driver = {
		.name = "sirf-audio-port",
		.of_match_table = sirf_audio_port_of_match,
	},
	.probe = sirf_audio_port_probe,
};

module_platform_driver(sirf_audio_port_driver);

MODULE_DESCRIPTION("SiRF Audio Port driver");
MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
a731e217 RY	1	/*
	2	* SiRF Audio port driver
	3	*
	4	* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
	5	*
	6	* Licensed under GPLv2 or later.
	7	*/
	8	#include <linux/module.h>
a731e217 RY	9	#include <sound/soc.h>
	10	#include <sound/dmaengine_pcm.h>
	11
a731e217 RY	12	struct sirf_audio_port {
	13	struct regmap *regmap;
	14	struct snd_dmaengine_dai_dma_data playback_dma_data;
	15	struct snd_dmaengine_dai_dma_data capture_dma_data;
	16	};
	17
a731e217 RY	18
	19	static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
	20	{
	21	struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
	22	snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
	23	&port->capture_dma_data);
	24	return 0;
	25	}
	26
a731e217 RY	27	static struct snd_soc_dai_driver sirf_audio_port_dai = {
	28	.probe = sirf_audio_port_dai_probe,
	29	.name = "sirf-audio-port",
	30	.id = 0,
	31	.playback = {
	32	.channels_min = 2,
	33	.channels_max = 2,
	34	.rates = SNDRV_PCM_RATE_48000,
	35	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	36	},
	37	.capture = {
	38	.channels_min = 1,
	39	.channels_max = 2,
	40	.rates = SNDRV_PCM_RATE_48000,
	41	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	42	},
a731e217 RY	43	};
	44
	45	static const struct snd_soc_component_driver sirf_audio_port_component = {
	46	.name = "sirf-audio-port",
	47	};
	48
a731e217 RY	49	static int sirf_audio_port_probe(struct platform_device *pdev)
	50	{
	51	int ret;
	52	struct sirf_audio_port *port;
a731e217 RY	53
	54	port = devm_kzalloc(&pdev->dev,
	55	sizeof(struct sirf_audio_port), GFP_KERNEL);
	56	if (!port)
	57	return -ENOMEM;
	58
a731e217 RY	59	ret = devm_snd_soc_register_component(&pdev->dev,
	60	&sirf_audio_port_component, &sirf_audio_port_dai, 1);
	61	if (ret)
	62	return ret;
	63
	64	platform_set_drvdata(pdev, port);
	65	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
	66	}
	67
	68	static const struct of_device_id sirf_audio_port_of_match[] = {
	69	{ .compatible = "sirf,audio-port", },
	70	{}
	71	};
	72	MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
	73
	74	static struct platform_driver sirf_audio_port_driver = {
	75	.driver = {
	76	.name = "sirf-audio-port",
a731e217 RY	77	.of_match_table = sirf_audio_port_of_match,
	78	},
	79	.probe = sirf_audio_port_probe,
	80	};
	81
	82	module_platform_driver(sirf_audio_port_driver);
	83
	84	MODULE_DESCRIPTION("SiRF Audio Port driver");
	85	MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
	86	MODULE_LICENSE("GPL v2");