| /* 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 */ |
