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author | Ingo Molnar <mingo@elte.hu> | 2009-05-08 10:50:00 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-08 10:50:00 +0200 |
commit | f066a155334642b8a206eec625b1925d88c48aeb (patch) | |
tree | cb12975e60b70d1dae3b7397bab955de78a4d01e /arch/x86/boot/video-vga.c | |
parent | e7c064889606aab3569669078c69b87b2c527e72 (diff) | |
parent | 33df4db04a79660150e1948e3296eeb451ac121b (diff) | |
download | blackbird-op-linux-f066a155334642b8a206eec625b1925d88c48aeb.tar.gz blackbird-op-linux-f066a155334642b8a206eec625b1925d88c48aeb.zip |
Merge branch 'x86/urgent' into x86/xen
Conflicts:
arch/frv/include/asm/pgtable.h
arch/x86/include/asm/required-features.h
arch/x86/xen/mmu.c
Merge reason: x86/xen was on a .29 base still, move it to a fresher
branch and pick up Xen fixes as well, plus resolve
conflicts
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/boot/video-vga.c')
-rw-r--r-- | arch/x86/boot/video-vga.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c index 95d86ce0421c..9e0587a37768 100644 --- a/arch/x86/boot/video-vga.c +++ b/arch/x86/boot/video-vga.c @@ -129,22 +129,18 @@ u16 vga_crtc(void) return (inb(0x3cc) & 1) ? 0x3d4 : 0x3b4; } -static void vga_set_480_scanlines(int lines) +static void vga_set_480_scanlines(void) { u16 crtc; /* CRTC base address */ u8 csel; /* CRTC miscellaneous output register */ - u8 ovfw; /* CRTC overflow register */ - int end = lines-1; crtc = vga_crtc(); - ovfw = 0x3c | ((end >> (8-1)) & 0x02) | ((end >> (9-6)) & 0x40); - out_idx(0x0c, crtc, 0x11); /* Vertical sync end, unlock CR0-7 */ out_idx(0x0b, crtc, 0x06); /* Vertical total */ - out_idx(ovfw, crtc, 0x07); /* Vertical overflow */ + out_idx(0x3e, crtc, 0x07); /* Vertical overflow */ out_idx(0xea, crtc, 0x10); /* Vertical sync start */ - out_idx(end, crtc, 0x12); /* Vertical display end */ + out_idx(0xdf, crtc, 0x12); /* Vertical display end */ out_idx(0xe7, crtc, 0x15); /* Vertical blank start */ out_idx(0x04, crtc, 0x16); /* Vertical blank end */ csel = inb(0x3cc); @@ -153,21 +149,38 @@ static void vga_set_480_scanlines(int lines) outb(csel, 0x3c2); } +static void vga_set_vertical_end(int lines) +{ + u16 crtc; /* CRTC base address */ + u8 ovfw; /* CRTC overflow register */ + int end = lines-1; + + crtc = vga_crtc(); + + ovfw = 0x3c | ((end >> (8-1)) & 0x02) | ((end >> (9-6)) & 0x40); + + out_idx(ovfw, crtc, 0x07); /* Vertical overflow */ + out_idx(end, crtc, 0x12); /* Vertical display end */ +} + static void vga_set_80x30(void) { - vga_set_480_scanlines(30*16); + vga_set_480_scanlines(); + vga_set_vertical_end(30*16); } static void vga_set_80x34(void) { + vga_set_480_scanlines(); vga_set_14font(); - vga_set_480_scanlines(34*14); + vga_set_vertical_end(34*14); } static void vga_set_80x60(void) { + vga_set_480_scanlines(); vga_set_8font(); - vga_set_480_scanlines(60*8); + vga_set_vertical_end(60*8); } static int vga_set_mode(struct mode_info *mode) |