[deliverable/linux.git] / sound / soc / codecs / hdmi.c

/*
 * ALSA SoC codec driver for HDMI audio codecs.
 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
 * Author: Ricardo Neri <ricardo.neri@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */
#include <linux/module.h>
#include <sound/soc.h>
#include <linux/of.h>
#include <linux/of_device.h>

#define DRV_NAME "hdmi-audio-codec"

static const struct snd_soc_dapm_widget hdmi_widgets[] = {
	SND_SOC_DAPM_INPUT("RX"),
	SND_SOC_DAPM_OUTPUT("TX"),
};

static const struct snd_soc_dapm_route hdmi_routes[] = {
	{ "Capture", NULL, "RX" },
	{ "TX", NULL, "Playback" },
};

static struct snd_soc_dai_driver hdmi_codec_dai = {
	.name = "hdmi-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_32000 |
			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
			SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
			SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
		.sig_bits = 24,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_32000 |
			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
			SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
			SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S24_LE,
	},

};

#ifdef CONFIG_OF
static const struct of_device_id hdmi_audio_codec_ids[] = {
	{ .compatible = "linux,hdmi-audio", },
	{ }
};
MODULE_DEVICE_TABLE(of, hdmi_audio_codec_ids);
#endif

static struct snd_soc_codec_driver hdmi_codec = {
	.dapm_widgets = hdmi_widgets,
	.num_dapm_widgets = ARRAY_SIZE(hdmi_widgets),
	.dapm_routes = hdmi_routes,
	.num_dapm_routes = ARRAY_SIZE(hdmi_routes),
	.ignore_pmdown_time = true,
};

static int hdmi_codec_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev, &hdmi_codec,
			&hdmi_codec_dai, 1);
}

static int hdmi_codec_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

static struct platform_driver hdmi_codec_driver = {
	.driver		= {
		.name	= DRV_NAME,
		.of_match_table = of_match_ptr(hdmi_audio_codec_ids),
	},

	.probe		= hdmi_codec_probe,
	.remove		= hdmi_codec_remove,
};

module_platform_driver(hdmi_codec_driver);

MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
MODULE_DESCRIPTION("ASoC generic HDMI codec driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
Commit	Line	Data
5452030c	1	/*
bf7c6e6c	2	* ALSA SoC codec driver for HDMI audio codecs.
5452030c RN	3	* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
	4	* Author: Ricardo Neri <ricardo.neri@ti.com>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21	#include <linux/module.h>
	22	#include <sound/soc.h>
a6b34312	23	#include <linux/of.h>
0f7f3d1f	24	#include <linux/of_device.h>
5452030c RN	25
	26	#define DRV_NAME "hdmi-audio-codec"
	27
c34e51b1 MB	28	static const struct snd_soc_dapm_widget hdmi_widgets[] = {
	29	SND_SOC_DAPM_INPUT("RX"),
	30	SND_SOC_DAPM_OUTPUT("TX"),
	31	};
	32
	33	static const struct snd_soc_dapm_route hdmi_routes[] = {
	34	{ "Capture", NULL, "RX" },
	35	{ "TX", NULL, "Playback" },
	36	};
5452030c	37
bf7c6e6c BS	38	static struct snd_soc_dai_driver hdmi_codec_dai = {
bf7c6e6c BS	39	.name = "hdmi-hifi",
5452030c	40	.playback = {
c34e51b1	41	.stream_name = "Playback",
5452030c RN	42	.channels_min = 2,
	43	.channels_max = 8,
	44	.rates = SNDRV_PCM_RATE_32000 \|
	45	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000 \|
	46	SNDRV_PCM_RATE_88200 \| SNDRV_PCM_RATE_96000 \|
	47	SNDRV_PCM_RATE_176400 \| SNDRV_PCM_RATE_192000,
	48	.formats = SNDRV_PCM_FMTBIT_S16_LE \|
c600e953	49	SNDRV_PCM_FMTBIT_S24_LE \| SNDRV_PCM_FMTBIT_S32_LE,
74d813cf	50	.sig_bits = 24,
5452030c	51	},
c6c0925e	52	.capture = {
c34e51b1	53	.stream_name = "Capture",
c6c0925e RY	54	.channels_min = 2,
	55	.channels_max = 2,
	56	.rates = SNDRV_PCM_RATE_32000 \|
	57	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000 \|
	58	SNDRV_PCM_RATE_88200 \| SNDRV_PCM_RATE_96000 \|
	59	SNDRV_PCM_RATE_176400 \| SNDRV_PCM_RATE_192000,
	60	.formats = SNDRV_PCM_FMTBIT_S16_LE \|
	61	SNDRV_PCM_FMTBIT_S24_LE,
	62	},
	63
5452030c RN	64	};
5452030c RN	65
0f7f3d1f JS	66	#ifdef CONFIG_OF
	67	static const struct of_device_id hdmi_audio_codec_ids[] = {
	68	{ .compatible = "linux,hdmi-audio", },
	69	{ }
	70	};
	71	MODULE_DEVICE_TABLE(of, hdmi_audio_codec_ids);
	72	#endif
	73
c34e51b1 MB	74	static struct snd_soc_codec_driver hdmi_codec = {
	75	.dapm_widgets = hdmi_widgets,
	76	.num_dapm_widgets = ARRAY_SIZE(hdmi_widgets),
	77	.dapm_routes = hdmi_routes,
	78	.num_dapm_routes = ARRAY_SIZE(hdmi_routes),
69434097	79	.ignore_pmdown_time = true,
c34e51b1 MB	80	};
c34e51b1 MB	81
bf7c6e6c	82	static int hdmi_codec_probe(struct platform_device *pdev)
5452030c	83	{
bf7c6e6c BS	84	return snd_soc_register_codec(&pdev->dev, &hdmi_codec,
bf7c6e6c BS	85	&hdmi_codec_dai, 1);
5452030c RN	86	}
5452030c RN	87
bf7c6e6c	88	static int hdmi_codec_remove(struct platform_device *pdev)
5452030c RN	89	{
	90	snd_soc_unregister_codec(&pdev->dev);
	91	return 0;
	92	}
	93
bf7c6e6c	94	static struct platform_driver hdmi_codec_driver = {
5452030c RN	95	.driver = {
5452030c RN	96	.name = DRV_NAME,
0f7f3d1f	97	.of_match_table = of_match_ptr(hdmi_audio_codec_ids),
5452030c RN	98	},
5452030c RN	99
bf7c6e6c BS	100	.probe = hdmi_codec_probe,
bf7c6e6c BS	101	.remove = hdmi_codec_remove,
5452030c RN	102	};
5452030c RN	103
bf7c6e6c	104	module_platform_driver(hdmi_codec_driver);
5452030c RN	105
5452030c RN	106	MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
bf7c6e6c	107	MODULE_DESCRIPTION("ASoC generic HDMI codec driver");
5452030c RN	108	MODULE_LICENSE("GPL");
5452030c RN	109	MODULE_ALIAS("platform:" DRV_NAME);