| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* sbuslib.h: SBUS fb helper library interfaces */ |
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| 3 | #ifndef _SBUSLIB_H |
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| 4 | #define _SBUSLIB_H |
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| 5 | |
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| 6 | struct device_node; |
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| 7 | struct fb_info; |
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| 8 | struct fb_var_screeninfo; |
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| 9 | struct vm_area_struct; |
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| 10 | |
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| 11 | struct sbus_mmap_map { |
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| 12 | unsigned long voff; |
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| 13 | unsigned long poff; |
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| 14 | unsigned long size; |
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| 15 | }; |
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| 16 | |
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| 17 | #define SBUS_MMAP_FBSIZE(n) (-n) |
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| 18 | #define SBUS_MMAP_EMPTY 0x80000000 |
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| 19 | |
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| 20 | extern void sbusfb_fill_var(struct fb_var_screeninfo *var, |
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| 21 | struct device_node *dp, int bpp); |
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| 22 | extern int sbusfb_mmap_helper(const struct sbus_mmap_map *map, |
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| 23 | unsigned long physbase, unsigned long fbsize, |
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| 24 | unsigned long iospace, |
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| 25 | struct vm_area_struct *vma); |
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| 26 | int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, |
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| 27 | struct fb_info *info, |
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| 28 | int type, int fb_depth, unsigned long fb_size); |
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| 29 | int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd, |
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| 30 | unsigned long arg); |
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| 31 | |
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| 32 | /* |
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| 33 | * Initialize struct fb_ops for SBUS I/O. |
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| 34 | */ |
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| 35 | |
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| 36 | #define __FB_DEFAULT_SBUS_OPS_RDWR(__prefix) \ |
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| 37 | .fb_read = fb_io_read, \ |
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| 38 | .fb_write = fb_io_write |
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| 39 | |
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| 40 | #define __FB_DEFAULT_SBUS_OPS_DRAW(__prefix) \ |
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| 41 | .fb_fillrect = cfb_fillrect, \ |
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| 42 | .fb_copyarea = cfb_copyarea, \ |
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| 43 | .fb_imageblit = cfb_imageblit |
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| 44 | |
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| 45 | #ifdef CONFIG_COMPAT |
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| 46 | #define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \ |
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| 47 | .fb_ioctl = __prefix ## _sbusfb_ioctl, \ |
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| 48 | .fb_compat_ioctl = sbusfb_compat_ioctl |
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| 49 | #else |
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| 50 | #define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \ |
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| 51 | .fb_ioctl = __prefix ## _sbusfb_ioctl |
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| 52 | #endif |
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| 53 | |
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| 54 | #define __FB_DEFAULT_SBUS_OPS_MMAP(__prefix) \ |
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| 55 | .fb_mmap = __prefix ## _sbusfb_mmap |
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| 56 | |
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| 57 | #define FB_DEFAULT_SBUS_OPS(__prefix) \ |
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| 58 | __FB_DEFAULT_SBUS_OPS_RDWR(__prefix), \ |
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| 59 | __FB_DEFAULT_SBUS_OPS_DRAW(__prefix), \ |
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| 60 | __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix), \ |
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| 61 | __FB_DEFAULT_SBUS_OPS_MMAP(__prefix) |
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| 62 | |
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| 63 | #endif /* _SBUSLIB_H */ |
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| 64 | |
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