sound/soc/s3c24xx/s3c24xx-i2s.h

   1 /*
   2  * s3c24xx-i2s.c  --  ALSA Soc Audio Layer
   3  *
   4  * Copyright 2005 Wolfson Microelectronics PLC.
   5  * Author: Graeme Gregory
   6  *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  *
  13  *  Revision history
  14  *    10th Nov 2006   Initial version.
  15  */
  16
  17 #ifndef S3C24XXI2S_H_
  18 #define S3C24XXI2S_H_
  19
  20 /* clock sources */
  21 #define S3C24XX_CLKSRC_PCLK 0
  22 #define S3C24XX_CLKSRC_MPLL 1
  23
  24 /* Clock dividers */
  25 #define S3C24XX_DIV_MCLK        0
  26 #define S3C24XX_DIV_BCLK        1
  27 #define S3C24XX_DIV_PRESCALER   2
  28
  29 /* prescaler */
  30 #define S3C24XX_PRESCALE(a,b) \
  31         (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
  32
  33 u32 s3c24xx_i2s_get_clockrate(void);
  34
  35 extern struct snd_soc_dai s3c24xx_i2s_dai;
  36
  37 #endif /*S3C24XXI2S_H_*/