video/fbdev/sbuslib.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /* sbuslib.h: SBUS fb helper library interfaces */
0003 #ifndef _SBUSLIB_H
0004 #define _SBUSLIB_H
0005
0006 struct sbus_mmap_map {
0007     unsigned long voff;
0008     unsigned long poff;
0009     unsigned long size;
0010 };
0011
0012 #define SBUS_MMAP_FBSIZE(n) (-n)
0013 #define SBUS_MMAP_EMPTY 0x80000000
0014
0015 extern void sbusfb_fill_var(struct fb_var_screeninfo *var,
0016                 struct device_node *dp, int bpp);
0017 struct vm_area_struct;
0018 extern int sbusfb_mmap_helper(struct sbus_mmap_map *map,
0019                   unsigned long physbase, unsigned long fbsize,
0020                   unsigned long iospace,
0021                   struct vm_area_struct *vma);
0022 int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
0023             struct fb_info *info,
0024             int type, int fb_depth, unsigned long fb_size);
0025 int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd,
0026             unsigned long arg);
0027
0028 #endif /* _SBUSLIB_H */