1/*
2 * linux/sound/arm/pxa2xx-pcm.h -- ALSA PCM interface for the Intel PXA2xx chip
3 *
4 * Author:	Nicolas Pitre
5 * Created:	Nov 30, 2004
6 * Copyright:	MontaVista Software, Inc.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13struct pxa2xx_pcm_dma_params {
14	char *name;			/* stream identifier */
15	u32 dcmd;			/* DMA descriptor dcmd field */
16	volatile u32 *drcmr;		/* the DMA request channel to use */
17	u32 dev_addr;			/* device physical address for DMA */
18};
19
20struct pxa2xx_pcm_client {
21	struct pxa2xx_pcm_dma_params *playback_params;
22	struct pxa2xx_pcm_dma_params *capture_params;
23	int (*startup)(struct snd_pcm_substream *);
24	void (*shutdown)(struct snd_pcm_substream *);
25	int (*prepare)(struct snd_pcm_substream *);
26};
27
28extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **);
29