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yaml
---
r: 54953
b: refs/heads/master
c: 0449359
h: refs/heads/master
i:
  54951: 1ec9027
v: v3
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Ondrej Zajicek authored and Linus Torvalds committed May 8, 2007
1 parent 7646683 commit fb2f117
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Showing 2 changed files with 12 additions and 16 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 56c7554938e5945b770365e326f0c3d031ca231f
refs/heads/master: 0449359f053829ec89c026b5fb80bbe7190a5fe8
26 changes: 11 additions & 15 deletions trunk/drivers/video/vgastate.c
Original file line number Diff line number Diff line change
Expand Up @@ -50,23 +50,28 @@ static void save_vga_text(struct vgastate *state, void __iomem *fbbase)
struct regstate *saved = (struct regstate *) state->vidstate;
int i;
u8 misc, attr10, gr4, gr5, gr6, seq1, seq2, seq4;
unsigned short iobase;

/* if in graphics mode, no need to save */
misc = vga_r(state->vgabase, VGA_MIS_R);
iobase = (misc & 1) ? 0x3d0 : 0x3b0;

vga_r(state->vgabase, iobase + 0xa);
vga_w(state->vgabase, VGA_ATT_W, 0x00);
attr10 = vga_rattr(state->vgabase, 0x10);
vga_r(state->vgabase, iobase + 0xa);
vga_w(state->vgabase, VGA_ATT_W, 0x20);

if (attr10 & 1)
return;

/* save regs */
misc = vga_r(state->vgabase, VGA_MIS_R);
gr4 = vga_rgfx(state->vgabase, VGA_GFX_PLANE_READ);
gr5 = vga_rgfx(state->vgabase, VGA_GFX_MODE);
gr6 = vga_rgfx(state->vgabase, VGA_GFX_MISC);
seq2 = vga_rseq(state->vgabase, VGA_SEQ_PLANE_WRITE);
seq4 = vga_rseq(state->vgabase, VGA_SEQ_MEMORY_MODE);

/* force graphics mode */
vga_w(state->vgabase, VGA_MIS_W, misc | 1);

/* blank screen */
seq1 = vga_rseq(state->vgabase, VGA_SEQ_CLOCK_MODE);
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
Expand Down Expand Up @@ -115,15 +120,12 @@ static void save_vga_text(struct vgastate *state, void __iomem *fbbase)
}

/* restore regs */
vga_wattr(state->vgabase, 0x10, attr10);

vga_wseq(state->vgabase, VGA_SEQ_PLANE_WRITE, seq2);
vga_wseq(state->vgabase, VGA_SEQ_MEMORY_MODE, seq4);

vga_wgfx(state->vgabase, VGA_GFX_PLANE_READ, gr4);
vga_wgfx(state->vgabase, VGA_GFX_MODE, gr5);
vga_wgfx(state->vgabase, VGA_GFX_MISC, gr6);
vga_w(state->vgabase, VGA_MIS_W, misc);

/* unblank screen */
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
Expand All @@ -137,11 +139,10 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
{
struct regstate *saved = (struct regstate *) state->vidstate;
int i;
u8 misc, gr1, gr3, gr4, gr5, gr6, gr8;
u8 gr1, gr3, gr4, gr5, gr6, gr8;
u8 seq1, seq2, seq4;

/* save regs */
misc = vga_r(state->vgabase, VGA_MIS_R);
gr1 = vga_rgfx(state->vgabase, VGA_GFX_SR_ENABLE);
gr3 = vga_rgfx(state->vgabase, VGA_GFX_DATA_ROTATE);
gr4 = vga_rgfx(state->vgabase, VGA_GFX_PLANE_READ);
Expand All @@ -151,9 +152,6 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
seq2 = vga_rseq(state->vgabase, VGA_SEQ_PLANE_WRITE);
seq4 = vga_rseq(state->vgabase, VGA_SEQ_MEMORY_MODE);

/* force graphics mode */
vga_w(state->vgabase, VGA_MIS_W, misc | 1);

/* blank screen */
seq1 = vga_rseq(state->vgabase, VGA_SEQ_CLOCK_MODE);
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x1);
Expand Down Expand Up @@ -213,8 +211,6 @@ static void restore_vga_text(struct vgastate *state, void __iomem *fbbase)
vga_wseq(state->vgabase, VGA_SEQ_RESET, 0x3);

/* restore regs */
vga_w(state->vgabase, VGA_MIS_W, misc);

vga_wgfx(state->vgabase, VGA_GFX_SR_ENABLE, gr1);
vga_wgfx(state->vgabase, VGA_GFX_DATA_ROTATE, gr3);
vga_wgfx(state->vgabase, VGA_GFX_PLANE_READ, gr4);
Expand Down

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