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