Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * 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 **);