diff options
| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-09-09 13:04:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:58 -0700 |
| commit | d2d58384fc5d4c0fe2d8e34bc2d15a90a9bb372a (patch) | |
| tree | 6b28b34161e7ca2db38014b473690e9c9954779a /arch/i386/boot | |
| parent | 7726e9e10fc6e026ed2dc00e48f4a3ffc1254ad2 (diff) | |
[PATCH] vesafb: Add blanking support
Add rudimentary support by manipulating the VGA registers. However, not
all vesa modes are VGA compatible, so VGA compatiblity is checked first.
Only 2 levels are supported, powerup and powerdown.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/boot')
| -rw-r--r-- | arch/i386/boot/video.S | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S index 0587477c99f..02bf625a681 100644 --- a/arch/i386/boot/video.S +++ b/arch/i386/boot/video.S @@ -97,6 +97,7 @@ #define PARAM_VESAPM_OFF 0x30 #define PARAM_LFB_PAGES 0x32 #define PARAM_VESA_ATTRIB 0x34 +#define PARAM_CAPABILITIES 0x36 /* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ #ifdef CONFIG_VIDEO_RETAIN @@ -233,6 +234,10 @@ mopar_gr: movw 18(%di), %ax movl %eax, %fs:(PARAM_LFB_SIZE) +# store mode capabilities + movl 10(%di), %eax + movl %eax, %fs:(PARAM_CAPABILITIES) + # switching the DAC to 8-bit is for <= 8 bpp only movw %fs:(PARAM_LFB_DEPTH), %ax cmpw $8, %ax |