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fbdev/sbus: Add initializer macros and Kconfig tokens for SBUS support

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Add macros to initialize struct fb_ops for drivers that support
framebuffers on Sparc's SBUS. Also add a Kconfig token that selects
the necessary helpers.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230806120926.5368-4-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-08-06 13:58:54 +02:00
parent d3aeac8688
commit cbe606f304
2 changed files with 37 additions and 0 deletions
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6
drivers/video/fbdev/Kconfig
View File

@ -518,6 +518,12 @@ config FB_SBUS
help
Say Y if you want support for SBUS or UPA based frame buffer device.
config FB_SBUS_HELPERS
bool
select FB_CFB_COPYAREA
select FB_CFB_FILLRECT
select FB_CFB_IMAGEBLIT
config FB_BW2
bool "BWtwo support"
depends on (FB = y) && (SPARC && FB_SBUS)

31
drivers/video/fbdev/sbuslib.h
View File

@ -29,4 +29,35 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
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 */