LXR linux/arch/arm/plat-s3c/include/plat/audio.h

   1/* arch/arm/mach-s3c2410/include/mach/audio.h
   2 *
   3 * Copyright (c) 2004-2005 Simtec Electronics
   4 *      http://www.simtec.co.uk/products/SWLINUX/
   5 *      Ben Dooks <ben@simtec.co.uk>
   6 *
   7 * S3C24XX - Audio platfrom_device info
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 as
  11 * published by the Free Software Foundation.
  12*/
  13
  14#ifndef __ASM_ARCH_AUDIO_H
  15#define __ASM_ARCH_AUDIO_H __FILE__
  16
  17/* struct s3c24xx_iis_ops
  18 *
  19 * called from the s3c24xx audio core to deal with the architecture
  20 * or the codec's setup and control.
  21 *
  22 * the pointer to itself is passed through in case the caller wants to
  23 * embed this in an larger structure for easy reference to it's context.
  24*/
  25
  26struct s3c24xx_iis_ops {
  27        struct module *owner;
  28
  29        int     (*startup)(struct s3c24xx_iis_ops *me);
  30        void    (*shutdown)(struct s3c24xx_iis_ops *me);
  31        int     (*suspend)(struct s3c24xx_iis_ops *me);
  32        int     (*resume)(struct s3c24xx_iis_ops *me);
  33
  34        int     (*open)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm);
  35        int     (*close)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm);
  36        int     (*prepare)(struct s3c24xx_iis_ops *me, struct snd_pcm_substream *strm, struct snd_pcm_runtime *rt);
  37};
  38
  39struct s3c24xx_platdata_iis {
  40        const char              *codec_clk;
  41        struct s3c24xx_iis_ops  *ops;
  42        int                     (*match_dev)(struct device *dev);
  43};
  44
  45#endif /* __ASM_ARCH_AUDIO_H */
  46