include/asm-arm/arch-s3c2410/audio.h

   1 /* linux/include/asm-arm/arch-s3c2410/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
  26 struct 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
  39 struct 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 */