s3c24xx-i2s.h 950 B

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  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. #ifndef S3C24XXI2S_H_
  17. #define S3C24XXI2S_H_
  18. /* clock sources */
  19. #define S3C24XX_CLKSRC_PCLK 0
  20. #define S3C24XX_CLKSRC_MPLL 1
  21. /* Clock dividers */
  22. #define S3C24XX_DIV_MCLK 0
  23. #define S3C24XX_DIV_BCLK 1
  24. #define S3C24XX_DIV_PRESCALER 2
  25. /* prescaler */
  26. #define S3C24XX_PRESCALE(a,b) \
  27. (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
  28. u32 s3c24xx_i2s_get_clockrate(void);
  29. #endif /*S3C24XXI2S_H_*/