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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/davinci/davinci-mcasp.h
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/*

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 * ALSA SoC McASP Audio Layer for TI DAVINCI processor

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 *

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 * MCASP related definitions

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 *

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 * Author: Nirmal Pandey <[email protected]>,

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 *         Suresh Rajashekara <[email protected]>

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 *         Steve Chen <[email protected]>

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 *

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 * Copyright:   (C) 2009 MontaVista Software, Inc., <[email protected]>

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 * Copyright:   (C) 2009  Texas Instruments, India

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#ifndef DAVINCI_MCASP_H

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#define DAVINCI_MCASP_H

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#include <linux/io.h>

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#include <mach/asp.h>

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#include "davinci-pcm.h"

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#define DAVINCI_MCASP_RATES	SNDRV_PCM_RATE_8000_96000

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#define DAVINCI_MCASP_I2S_DAI	0

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#define DAVINCI_MCASP_DIT_DAI	1

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enum {

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	DAVINCI_AUDIO_WORD_8 = 0,

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	DAVINCI_AUDIO_WORD_12,

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	DAVINCI_AUDIO_WORD_16,

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	DAVINCI_AUDIO_WORD_20,

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	DAVINCI_AUDIO_WORD_24,

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	DAVINCI_AUDIO_WORD_32,

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	DAVINCI_AUDIO_WORD_28,  /* This is only valid for McASP */

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};

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struct davinci_audio_dev {

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	struct davinci_pcm_dma_params dma_params[2];

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	void __iomem *base;

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	int sample_rate;

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	struct clk *clk;

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	unsigned int codec_fmt;

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	u8 clk_active;

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	/* McASP specific data */

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	int	tdm_slots;

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	u8	op_mode;

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	u8	num_serializer;

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	u8	*serial_dir;

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	u8	version;

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	/* McASP FIFO related */

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	u8	txnumevt;

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	u8	rxnumevt;

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};

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#endif	/* DAVINCI_MCASP_H */

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