sound/soc/samsung/s3c24xx-i2s.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * s3c24xx-i2s.c  --  ALSA Soc Audio Layer
   4  *
   5  * Copyright 2005 Wolfson Microelectronics PLC.
   6  * Author: Graeme Gregory
   7  *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
   8  *
   9  *  Revision history
  10  *    10th Nov 2006   Initial version.
  11  */
  12
  13 #ifndef S3C24XXI2S_H_
  14 #define S3C24XXI2S_H_
  15
  16 /* clock sources */
  17 #define S3C24XX_CLKSRC_PCLK 0
  18 #define S3C24XX_CLKSRC_MPLL 1
  19
  20 /* Clock dividers */
  21 #define S3C24XX_DIV_MCLK        0
  22 #define S3C24XX_DIV_BCLK        1
  23 #define S3C24XX_DIV_PRESCALER   2
  24
  25 /* prescaler */
  26 #define S3C24XX_PRESCALE(a,b) \
  27         (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
  28
  29 u32 s3c24xx_i2s_get_clockrate(void);
  30
  31 #endif /*S3C24XXI2S_H_*/