LXR linux/sound/soc/samsung/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
  33u32 s3c24xx_i2s_get_clockrate(void);
  34
  35#endif /*S3C24XXI2S_H_*/
  36