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File: [Development] / linux-2.6-xfs-all / sound / arm / pxa2xx-pcm.h (download)

Revision 1.2, Wed Jan 25 00:04:14 2006 UTC (11 years, 9 months ago) by cattelan
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +10 -10 lines

Merge up to 2.6.16-rc1

/*
 * linux/sound/arm/pxa2xx-pcm.h -- ALSA PCM interface for the Intel PXA2xx chip
 *
 * Author:	Nicolas Pitre
 * Created:	Nov 30, 2004
 * Copyright:	MontaVista Software, Inc.
 *
 * 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.
 */

struct pxa2xx_pcm_dma_params {
	char *name;			/* stream identifier */
	u32 dcmd;			/* DMA descriptor dcmd field */
	volatile u32 *drcmr;		/* the DMA request channel to use */
	u32 dev_addr;			/* device physical address for DMA */
};
	
struct pxa2xx_pcm_client {
	struct pxa2xx_pcm_dma_params *playback_params;
	struct pxa2xx_pcm_dma_params *capture_params;
	int (*startup)(struct snd_pcm_substream *);
	void (*shutdown)(struct snd_pcm_substream *);
	int (*prepare)(struct snd_pcm_substream *);
};

extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **);