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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2012-04-18 11:45:17 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2012-04-22 20:16:50 +0200 |
| commit | 5c3f968712cec168fa9775e8af0c0d6650e4bd47 (patch) | |
| tree | eeda9280328af4dbe23d81ec77ee51c58ebe3519 /arch/m68k/include/asm/vga.h | |
| parent | m68k: Make sure {read,write}s[bwl]() are always defined (diff) | |
| download | linux-5c3f968712cec168fa9775e8af0c0d6650e4bd47.tar.xz linux-5c3f968712cec168fa9775e8af0c0d6650e4bd47.zip | |
m68k/video: Create <asm/vga.h>
For now, it just contains the hack for cirrusfb on Amiga, which is moved
out of <video/vga.h> with some slight modifications (use raw_*() instead of
z_*(), which are defined on all m68k platforms).
This makes it safe to include <video/vga.h> in all contexts. Before it
could fail to compile with
include/video/vga.h: In function ‘vga_mm_r’:
include/video/vga.h:242: error: implicit declaration of function ‘z_readb’
include/video/vga.h: In function ‘vga_mm_w’:
include/video/vga.h:247: error: implicit declaration of function ‘z_writeb’
include/video/vga.h: In function ‘vga_mm_w_fast’:
include/video/vga.h:253: error: implicit declaration of function ‘z_writew’
or
include/video/vga.h:23:21: error: asm/vga.h: No such file or directory
depending on the value of CONFIG_AMIGA.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Diffstat (limited to 'arch/m68k/include/asm/vga.h')
| -rw-r--r-- | arch/m68k/include/asm/vga.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/vga.h b/arch/m68k/include/asm/vga.h new file mode 100644 index 000000000000..d3aa1401e7aa --- /dev/null +++ b/arch/m68k/include/asm/vga.h @@ -0,0 +1,27 @@ +#ifndef _ASM_M68K_VGA_H +#define _ASM_M68K_VGA_H + +#include <asm/raw_io.h> + +/* + * FIXME + * Ugh, we don't have PCI space, so map readb() and friends to use raw I/O + * accessors, which are identical to the z_*() Zorro bus accessors. + * This should make cirrusfb work again on Amiga + */ +#undef inb_p +#undef inw_p +#undef outb_p +#undef outw +#undef readb +#undef writeb +#undef writew +#define inb_p(port) 0 +#define inw_p(port) 0 +#define outb_p(port, val) do { } while (0) +#define outw(port, val) do { } while (0) +#define readb raw_inb +#define writeb raw_outb +#define writew raw_outw + +#endif /* _ASM_M68K_VGA_H */ |