64 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2/* sbuslib.h: SBUS fb helper library interfaces */3#ifndef _SBUSLIB_H4#define _SBUSLIB_H5 6struct device_node;7struct fb_info;8struct fb_var_screeninfo;9struct vm_area_struct;10 11struct 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 0x8000000019 20extern void sbusfb_fill_var(struct fb_var_screeninfo *var,21 struct device_node *dp, int bpp);22extern int sbusfb_mmap_helper(const struct sbus_mmap_map *map,23 unsigned long physbase, unsigned long fbsize,24 unsigned long iospace,25 struct vm_area_struct *vma);26int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,27 struct fb_info *info,28 int type, int fb_depth, unsigned long fb_size);29int 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_write39 40#define __FB_DEFAULT_SBUS_OPS_DRAW(__prefix) \41 .fb_fillrect = cfb_fillrect, \42 .fb_copyarea = cfb_copyarea, \43 .fb_imageblit = cfb_imageblit44 45#ifdef CONFIG_COMPAT46#define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \47 .fb_ioctl = __prefix ## _sbusfb_ioctl, \48 .fb_compat_ioctl = sbusfb_compat_ioctl49#else50#define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \51 .fb_ioctl = __prefix ## _sbusfb_ioctl52#endif53 54#define __FB_DEFAULT_SBUS_OPS_MMAP(__prefix) \55 .fb_mmap = __prefix ## _sbusfb_mmap56 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