LXR linux/sound/arm/pxa2xx-pcm.h

   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#include <mach/dma.h>
  13
  14struct pxa2xx_runtime_data {
  15        int dma_ch;
  16        struct pxa2xx_pcm_dma_params *params;
  17        pxa_dma_desc *dma_desc_array;
  18        dma_addr_t dma_desc_array_phys;
  19};
  20
  21struct pxa2xx_pcm_client {
  22        struct pxa2xx_pcm_dma_params *playback_params;
  23        struct pxa2xx_pcm_dma_params *capture_params;
  24        int (*startup)(struct snd_pcm_substream *);
  25        void (*shutdown)(struct snd_pcm_substream *);
  26        int (*prepare)(struct snd_pcm_substream *);
  27};
  28
  29extern int pxa2xx_pcm_new(struct snd_card *, struct pxa2xx_pcm_client *, struct snd_pcm **);
  30
  31