#include "util.h" // memset_far
#include "vgatables.h" // find_vga_entry
-// TODO
-// * extract hw code from framebuffer code
-
/****************************************************************
* Screen scrolling
int cols = lr.x - ul.x + 1;
int rows = lr.y - ul.y + 1;
if (nblines < rows) {
- outw(0x0105, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x05, 0x01);
dest_far = memcpy_stride(SEG_GRAPH, dest_far, src_far, cols, stride
, (rows - nblines) * cheight);
}
if (attr < 0)
attr = 0;
- outw(0x0205, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x05, 0x02);
memset_stride(SEG_GRAPH, dest_far, attr, cols, stride, nblines * cheight);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x05, 0x00);
}
static void
case CGA:
memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 32*1024);
break;
- default: {
- outb(0x02, VGAREG_SEQU_ADDRESS);
- u8 mmask = inb(VGAREG_SEQU_DATA);
- outb(0x0f, VGAREG_SEQU_DATA); // all planes
+ default:
+ // XXX - old code gets/sets/restores sequ register 2 to 0xf -
+ // but it should always be 0xf anyway.
memset16_far(GET_GLOBAL(vmode_g->sstart), 0, 0x0000, 64*1024);
- outb(mmask, VGAREG_SEQU_DATA);
- }
}
}
}
u16 addr = cp.x + cp.y * cheight * nbcols;
u16 src = ca.car * cheight;
- outw(0x0f02, VGAREG_SEQU_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
+ vgahw_sequ_write(0x02, 0x0f);
+ vgahw_grdc_write(0x05, 0x02);
if (ca.attr & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x03, 0x18);
else
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x03, 0x00);
u8 i;
for (i = 0; i < cheight; i++) {
u8 *dest_far = (void*)(addr + i * nbcols);
u8 j;
for (j = 0; j < 8; j++) {
u8 mask = 0x80 >> j;
- outw((mask << 8) | 0x08, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, mask);
GET_FARVAR(SEG_GRAPH, *dest_far);
if (GET_GLOBAL(fdata_g[src + i]) & mask)
SET_FARVAR(SEG_GRAPH, *dest_far, ca.attr & 0x0f);
SET_FARVAR(SEG_GRAPH, *dest_far, 0x00);
}
}
- outw(0xff08, VGAREG_GRDC_ADDRESS);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, 0xff);
+ vgahw_grdc_write(0x05, 0x00);
+ vgahw_grdc_write(0x03, 0x00);
}
static void
case PLANAR1:
addr_far = (void*)(x / 8 + y * GET_BDA(video_cols));
mask = 0x80 >> (x & 0x07);
- outw((mask << 8) | 0x08, VGAREG_GRDC_ADDRESS);
- outw(0x0205, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, mask);
+ vgahw_grdc_write(0x05, 0x02);
data = GET_FARVAR(SEG_GRAPH, *addr_far);
if (color & 0x80)
- outw(0x1803, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x03, 0x18);
SET_FARVAR(SEG_GRAPH, *addr_far, color);
- outw(0xff08, VGAREG_GRDC_ADDRESS);
- outw(0x0005, VGAREG_GRDC_ADDRESS);
- outw(0x0003, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x08, 0xff);
+ vgahw_grdc_write(0x05, 0x00);
+ vgahw_grdc_write(0x03, 0x00);
break;
case CGA:
if (GET_GLOBAL(vmode_g->pixbits) == 2)
mask = 0x80 >> (x & 0x07);
attr = 0x00;
for (i = 0; i < 4; i++) {
- outw((i << 8) | 0x04, VGAREG_GRDC_ADDRESS);
+ vgahw_grdc_write(0x04, i);
data = GET_FARVAR(SEG_GRAPH, *addr_far) & mask;
if (data > 0)
attr |= (0x01 << i);