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asm-sh
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cpu-sh3
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dac.h

dac.h 752 B
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  1. #ifndef __ASM_CPU_SH3_DAC_H
    2. 

  2. #define __ASM_CPU_SH3_DAC_H
    3. 

  3. 

  4. /*
    5. 

  5.  * Copyright (C) 2003  Andriy Skulysh
    6. 

  6.  */
    7. 

  7. 

  8. 

  9. #define DADR0	0xa40000a0
    10. 

  10. #define DADR1	0xa40000a2
    11. 

  11. #define DACR	0xa40000a4
    12. 

  12. #define DACR_DAOE1	0x80
    13. 

  13. #define DACR_DAOE0	0x40
    14. 

  14. #define DACR_DAE	0x20
    15. 

  15. 

  16. 

  17. static __inline__ void sh_dac_enable(int channel)
    18. 

  18. {
    19. 

  19. 	unsigned char v;
    20. 

  20. 	v = ctrl_inb(DACR);
    21. 

  21. 	if(channel) v |= DACR_DAOE1;
    22. 

  22. 	else v |= DACR_DAOE0;
    23. 

  23. 	ctrl_outb(v,DACR);
    24. 

  24. }
    25. 

  25. 

  26. static __inline__ void sh_dac_disable(int channel)
    27. 

  27. {
    28. 

  28. 	unsigned char v;
    29. 

  29. 	v = ctrl_inb(DACR);
    30. 

  30. 	if(channel) v &= ~DACR_DAOE1;
    31. 

  31. 	else v &= ~DACR_DAOE0;
    32. 

  32. 	ctrl_outb(v,DACR);
    33. 

  33. }
    34. 

  34. 

  35. static __inline__ void sh_dac_output(u8 value, int channel)
    36. 

  36. {
    37. 

  37. 	if(channel) ctrl_outb(value,DADR1);
    38. 

  38. 	else ctrl_outb(value,DADR0);
    39. 

  39. }
    40. 

  40. 

  41. #endif /* __ASM_CPU_SH3_DAC_H */
    42.