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ARK-OS
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arkos
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kernel
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drivers
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video
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fbdev
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sbuslib.h

sbuslib.h 1.7 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /* sbuslib.h: SBUS fb helper library interfaces */
    3. 

  3. #ifndef _SBUSLIB_H
    4. 

  4. #define _SBUSLIB_H
    5. 

  5. 

  6. struct device_node;
    7. 

  7. struct fb_info;
    8. 

  8. struct fb_var_screeninfo;
    9. 

  9. struct vm_area_struct;
    10. 

  10. 

  11. struct sbus_mmap_map {
    12. 

  12. 	unsigned long voff;
    13. 

  13. 	unsigned long poff;
    14. 

  14. 	unsigned long size;
    15. 

  15. };
    16. 

  16. 

  17. #define SBUS_MMAP_FBSIZE(n) (-n)
    18. 

  18. #define SBUS_MMAP_EMPTY	0x80000000
    19. 

  19. 

  20. extern void sbusfb_fill_var(struct fb_var_screeninfo *var,
    21. 

  21. 			    struct device_node *dp, int bpp);
    22. 

  22. extern int sbusfb_mmap_helper(const struct sbus_mmap_map *map,
    23. 

  23. 			      unsigned long physbase, unsigned long fbsize,
    24. 

  24. 			      unsigned long iospace,
    25. 

  25. 			      struct vm_area_struct *vma);
    26. 

  26. int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
    27. 

  27. 			struct fb_info *info,
    28. 

  28. 			int type, int fb_depth, unsigned long fb_size);
    29. 

  29. int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd,
    30. 

  30. 			unsigned long arg);
    31. 

  31. 

  32. /*
    33. 

  33.  * Initialize struct fb_ops for SBUS I/O.
    34. 

  34.  */
    35. 

  35. 

  36. #define __FB_DEFAULT_SBUS_OPS_RDWR(__prefix) \
    37. 

  37. 	.fb_read	= fb_io_read, \
    38. 

  38. 	.fb_write	= fb_io_write
    39. 

  39. 

  40. #define __FB_DEFAULT_SBUS_OPS_DRAW(__prefix) \
    41. 

  41. 	.fb_fillrect	= cfb_fillrect, \
    42. 

  42. 	.fb_copyarea	= cfb_copyarea, \
    43. 

  43. 	.fb_imageblit	= cfb_imageblit
    44. 

  44. 

  45. #ifdef CONFIG_COMPAT
    46. 

  46. #define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \
    47. 

  47. 	.fb_ioctl		= __prefix ## _sbusfb_ioctl, \
    48. 

  48. 	.fb_compat_ioctl	= sbusfb_compat_ioctl
    49. 

  49. #else
    50. 

  50. #define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \
    51. 

  51. 	.fb_ioctl	= __prefix ## _sbusfb_ioctl
    52. 

  52. #endif
    53. 

  53. 

  54. #define __FB_DEFAULT_SBUS_OPS_MMAP(__prefix) \
    55. 

  55. 	.fb_mmap	= __prefix ## _sbusfb_mmap
    56. 

  56. 

  57. #define FB_DEFAULT_SBUS_OPS(__prefix) \
    58. 

  58. 	__FB_DEFAULT_SBUS_OPS_RDWR(__prefix), \
    59. 

  59. 	__FB_DEFAULT_SBUS_OPS_DRAW(__prefix), \
    60. 

  60. 	__FB_DEFAULT_SBUS_OPS_IOCTL(__prefix), \
    61. 

  61. 	__FB_DEFAULT_SBUS_OPS_MMAP(__prefix)
    62. 

  62. 

  63. #endif /* _SBUSLIB_H */
    64.