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pxa2xx-pcm.h

/*
 * 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.
 */

typedef struct {
      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 */
} pxa2xx_pcm_dma_params_t;
      
typedef struct {
      pxa2xx_pcm_dma_params_t *playback_params;
      pxa2xx_pcm_dma_params_t *capture_params;
      int (*startup)(snd_pcm_substream_t *);
      void (*shutdown)(snd_pcm_substream_t *);
      int (*prepare)(snd_pcm_substream_t *);
} pxa2xx_pcm_client_t;

extern int pxa2xx_pcm_new(snd_card_t *, pxa2xx_pcm_client_t *, snd_pcm_t **);


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