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_*/
38
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