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/* SPDX-License-Identifier: GPL-2.0 */
/* sbuslib.h: SBUS fb helper library interfaces */
#ifndef _SBUSLIB_H
#define _SBUSLIB_H
struct device_node;
struct fb_info;
struct fb_var_screeninfo;
struct vm_area_struct;
struct sbus_mmap_map {
unsigned long voff;
unsigned long poff;
unsigned long size;
};
#define SBUS_MMAP_FBSIZE(n) (-n)
#define SBUS_MMAP_EMPTY 0x80000000
extern void sbusfb_fill_var(struct fb_var_screeninfo *var,
struct device_node *dp, int bpp);
extern int sbusfb_mmap_helper(struct sbus_mmap_map *map,
unsigned long physbase, unsigned long fbsize,
unsigned long iospace,
struct vm_area_struct *vma);
int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
struct fb_info *info,
int type, int fb_depth, unsigned long fb_size);
int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg);
/*
* Initialize struct fb_ops for SBUS I/O.
*/
#define __FB_DEFAULT_SBUS_OPS_RDWR(__prefix) \
.fb_read = fb_io_read, \
.fb_write = fb_io_write
#define __FB_DEFAULT_SBUS_OPS_DRAW(__prefix) \
.fb_fillrect = cfb_fillrect, \
.fb_copyarea = cfb_copyarea, \
.fb_imageblit = cfb_imageblit
#ifdef CONFIG_COMPAT
#define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \
.fb_ioctl = __prefix ## _sbusfb_ioctl, \
.fb_compat_ioctl = sbusfb_compat_ioctl
#else
#define __FB_DEFAULT_SBUS_OPS_IOCTL(__prefix) \
.fb_ioctl = __prefix ## _sbusfb_ioctl
#endif
#define __FB_DEFAULT_SBUS_OPS_MMAP(__prefix) \
.fb_mmap = __prefix ## _sbusfb_mmap
#define FB_DEFAULT_SBUS_OPS(__prefix) \
__FB_DEFAULT_SBUS_OPS_RDWR(__prefix), \
__FB_DEFAULT_SBUS_OPS_DRAW(__prefix), \
__FB_DEFAULT_SBUS_OPS_IOCTL(__prefix), \
__FB_DEFAULT_SBUS_OPS_MMAP(__prefix)
#endif /* _SBUSLIB_H */
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