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iodeva.h

iodeva.h 2.3 KB
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  1. #ifndef IODEVA_H
    2. 

  2. #define IODEVA_H
    3. 

  3. 

  4. #define _NEGBASE(b)	((0xffffffff << (b)) & 0xffffffff)
    5. 

  5. #define XDEV_ADDR_BASE  _NEGBASE(XDEV_ADDR_SHIFT+XDEV_ADDR_BITS)
    6. 

  6. #define IODEV_ADDR_BASE _NEGBASE(IODEV_ADDR_SHIFT+IODEV_ADDR_BITS)
    7. 

  7. 

  8. /* Address for I/O device d, subregister r, offset o */
    9. 

  9. #define IODEVA(b,r,o)   ((b ## _BASE)+((r) << 2)+(o))
    10. 

  10. 

  11. #ifdef __ASSEMBLY__
    12. 

  12. 

  13. /*
    14. 

  14.  * The I/O device range is designed so that it can be addressed via
    15. 

  15.  * negative offsets from the zero register. Use (zero) after the
    16. 

  16.  * macro in a load or store instruction.
    17. 

  17.  */
    18. 

  18. #define IODEVV(d,r)	IODEVA(d,r,0)
    19. 

  19. #define IODEVB0(d,r)	IODEVA(d,r,0)
    20. 

  20. #define IODEVB1(d,r)	IODEVA(d,r,1)
    21. 

  21. #define IODEVB2(d,r)	IODEVA(d,r,2)
    22. 

  22. #define IODEVB3(d,r)	IODEVA(d,r,3)
    23. 

  23. #define IODEVH0(d,r)	IODEVA(d,r,0)
    24. 

  24. #define IODEVH1(d,r)	IODEVA(d,r,2)
    25. 

  25. #define IODEVL(d,r)	IODEVA(d,r,0)
    26. 

  26. 

  27. #define IODEVRV(d,r)	IODEVA(d,r,0)
    28. 

  28. #define IODEVRB0(d,r)	IODEVA(d,r,0)
    29. 

  29. #define IODEVRB1(d,r)	IODEVA(d,r,1)
    30. 

  30. #define IODEVRB2(d,r)	IODEVA(d,r,2)
    31. 

  31. #define IODEVRB3(d,r)	IODEVA(d,r,3)
    32. 

  32. #define IODEVRH0(d,r)	IODEVA(d,r,0)
    33. 

  33. #define IODEVRH1(d,r)	IODEVA(d,r,2)
    34. 

  34. #define IODEVRL(d,r)	IODEVA(d,r,0)
    35. 

  35. 

  36. #define PTR(x)	    x
    37. 

  37. 

  38. #else
    39. 

  39. 

  40. /* Writable registers */
    41. 

  41. #define IODEVV(d,r)   (*(volatile void     *)IODEVA(d,r,0))
    42. 

  42. #define IODEVB0(d,r)  (*(volatile uint8_t  *)IODEVA(d,r,0))
    43. 

  43. #define IODEVB1(d,r)  (*(volatile uint8_t  *)IODEVA(d,r,1))
    44. 

  44. #define IODEVB2(d,r)  (*(volatile uint8_t  *)IODEVA(d,r,2))
    45. 

  45. #define IODEVB3(d,r)  (*(volatile uint8_t  *)IODEVA(d,r,3))
    46. 

  46. #define IODEVH0(d,r)  (*(volatile uint16_t *)IODEVA(d,r,0))
    47. 

  47. #define IODEVH1(d,r)  (*(volatile uint16_t *)IODEVA(d,r,2))
    48. 

  48. #define IODEVL(d,r)   (*(volatile uint32_t *)IODEVA(d,r,0))
    49. 

  49. 

  50. /* Readonly registers */
    51. 

  51. #define IODEVRV(d,r)  (*(const volatile void     *)IODEVA(d,r,0))
    52. 

  52. #define IODEVRB0(d,r) (*(const volatile uint8_t  *)IODEVA(d,r,0))
    53. 

  53. #define IODEVRB1(d,r) (*(const volatile uint8_t  *)IODEVA(d,r,1))
    54. 

  54. #define IODEVRB2(d,r) (*(const volatile uint8_t  *)IODEVA(d,r,2))
    55. 

  55. #define IODEVRB3(d,r) (*(const volatile uint8_t  *)IODEVA(d,r,3))
    56. 

  56. #define IODEVRH0(d,r) (*(const volatile uint16_t *)IODEVA(d,r,0))
    57. 

  57. #define IODEVRH1(d,r) (*(const volatile uint16_t *)IODEVA(d,r,2))
    58. 

  58. #define IODEVRL(d,r)  (*(const volatile uint32_t *)IODEVA(d,r,0))
    59. 

  59. 

  60. #define PTR(x) (&(x))
    61. 

  61. 

  62. #endif /* __ASSEMBLY__ */
    63. 

  63. 

  64. #define IODEVB(d,r)	IODEVB0(d,r)
    65. 

  65. #define IODEVH(d,r)	IODEVH0(d,r)
    66. 

  66. #define IODEVRB(d,r)	IODEVRB0(d,r)
    67. 

  67. #define IODEVRH(d,r)	IODEVRH0(d,r)
    68. 

  68. 

  69. #endif /* IODEVA_H */
    70.