39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* sound/soc/s3c24xx/s3c2412-i2s.c
|
|
*
|
|
* ALSA Soc Audio Layer - S3C2412 I2S driver
|
|
*
|
|
* Copyright (c) 2007 Simtec Electronics
|
|
* http://armlinux.simtec.co.uk/
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#ifndef __SND_SOC_S3C24XX_S3C2412_I2S_H
|
|
#define __SND_SOC_S3C24XX_S3C2412_I2S_H __FILE__
|
|
|
|
#define S3C2412_DIV_BCLK (1)
|
|
#define S3C2412_DIV_RCLK (2)
|
|
#define S3C2412_DIV_PRESCALER (3)
|
|
|
|
#define S3C2412_CLKSRC_PCLK (0)
|
|
#define S3C2412_CLKSRC_I2SCLK (1)
|
|
|
|
extern struct clk *s3c2412_get_iisclk(void);
|
|
|
|
extern struct snd_soc_cpu_dai s3c2412_i2s_dai;
|
|
|
|
struct s3c2412_rate_calc {
|
|
unsigned int clk_div; /* for prescaler */
|
|
unsigned int fs_div; /* for root frame clock */
|
|
};
|
|
|
|
extern int s3c2412_iis_calc_rate(struct s3c2412_rate_calc *info,
|
|
unsigned int *fstab,
|
|
unsigned int rate, struct clk *clk);
|
|
|
|
#endif /* __SND_SOC_S3C24XX_S3C2412_I2S_H */
|