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

   1 /* linux/include/asm-arm/arch-s3c2410/audio.h
   2  *
   3  * (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  * Changelog:
  14  *      20-Nov-2004 BJD  Created file
  15  *      07-Mar-2005 BJD  Added suspend/resume calls
  16 */
  17
  18 #ifndef __ASM_ARCH_AUDIO_H
  19 #define __ASM_ARCH_AUDIO_H __FILE__
  20
  21 /* struct s3c24xx_iis_ops
  22  *
  23  * called from the s3c24xx audio core to deal with the architecture
  24  * or the codec's setup and control.
  25  *
  26  * the pointer to itself is passed through in case the caller wants to
  27  * embed this in an larger structure for easy reference to it's context.
  28 */
  29
  30 struct s3c24xx_iis_ops {
  31         struct module *owner;
  32
  33         int     (*startup)(struct s3c24xx_iis_ops *me);
  34         void    (*shutdown)(struct s3c24xx_iis_ops *me);
  35         int     (*suspend)(struct s3c24xx_iis_ops *me);
  36         int     (*resume)(struct s3c24xx_iis_ops *me);
  37
  38         int     (*open)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm);
  39         int     (*close)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm);
  40         int     (*prepare)(struct s3c24xx_iis_ops *me, snd_pcm_substream_t *strm, snd_pcm_runtime_t *rt);
  41 };
  42
  43 struct s3c24xx_platdata_iis {
  44         const char              *codec_clk;
  45         struct s3c24xx_iis_ops  *ops;
  46         int                     (*match_dev)(struct device *dev);
  47 };
  48
  49 #endif /* __ASM_ARCH_AUDIO_H */