X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fvideo%2Fvgastate.c;h=b91c466225b957610b7a8ddc7207c7fb47a6f355;hb=97c146ef075dc40ae34407c03d3860fc3850b8e8;hp=d9e01daee630dae2283c27bdf559dd93597b5c1a;hpb=63f45b80947cb0819673860f6970f483e2cab21d;p=linux-2.6-omap-h63xx.git diff --git a/drivers/video/vgastate.c b/drivers/video/vgastate.c index d9e01daee63..b91c466225b 100644 --- a/drivers/video/vgastate.c +++ b/drivers/video/vgastate.c @@ -13,7 +13,6 @@ * archive for more details. * */ -#include #include #include #include @@ -51,23 +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); @@ -116,15 +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); @@ -138,11 +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); @@ -152,9 +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); @@ -214,8 +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); @@ -356,10 +351,11 @@ int save_vga(struct vgastate *state) { struct regstate *saved; - saved = kmalloc(sizeof(struct regstate), GFP_KERNEL); + saved = kzalloc(sizeof(struct regstate), GFP_KERNEL); + if (saved == NULL) return 1; - memset (saved, 0, sizeof(struct regstate)); + state->vidstate = (void *)saved; if (state->flags & VGA_SAVE_CMAP) {