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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/soc/au1x/psc.h
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/*

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 * Au12x0/Au1550 PSC ALSA ASoC audio support.

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 *

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 * (c) 2007-2008 MSC Vertriebsges.m.b.H.,

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 *	Manuel Lauss <[email protected]>

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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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 */

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#ifndef _AU1X_PCM_H

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#define _AU1X_PCM_H

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/* DBDMA helpers */

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extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev);

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extern void au1xpsc_pcm_destroy(struct platform_device *dmapd);

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struct au1xpsc_audio_data {

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	void __iomem *mmio;

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	unsigned long cfg;

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	unsigned long rate;

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	struct snd_soc_dai_driver dai_drv;

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	unsigned long pm[2];

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	struct mutex lock;

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	struct platform_device *dmapd;

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};

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#define PCM_TX	0

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#define PCM_RX	1

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#define SUBSTREAM_TYPE(substream) \

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	((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX)

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/* easy access macros */

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#define PSC_CTRL(x)	((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET)

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#define PSC_SEL(x)	((unsigned long)((x)->mmio) + PSC_SEL_OFFSET)

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#define I2S_STAT(x)	((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET)

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#define I2S_CFG(x)	((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET)

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#define I2S_PCR(x)	((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET)

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#define AC97_CFG(x)	((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET)

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#define AC97_CDC(x)	((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET)

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#define AC97_EVNT(x)	((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET)

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#define AC97_PCR(x)	((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET)

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#define AC97_RST(x)	((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET)

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#define AC97_STAT(x)	((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET)

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#endif

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