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 #endif /*S3C24XXI2S_H_*/
36