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