#include "ioport.h" // outb
#include "farptr.h" // SET_FARVAR
#include "biosvar.h" // GET_BDA
-#include "vgatables.h" // VGAREG_*
+#include "vgabios.h" // VGAREG_*
+
+// TODO
+// * replace direct in/out calls with wrapper functions
/****************************************************************
****************************************************************/
void
-vgahw_screen_disable()
+vgahw_screen_disable(void)
{
inb(VGAREG_ACTL_RESET);
outb(0x00, VGAREG_ACTL_ADDRESS);
}
void
-vgahw_screen_enable()
+vgahw_screen_enable(void)
{
inb(VGAREG_ACTL_RESET);
outb(0x20, VGAREG_ACTL_ADDRESS);
}
u8
-vgahw_get_overscan_border_color()
+vgahw_get_overscan_border_color(void)
{
inb(VGAREG_ACTL_RESET);
outb(0x11, VGAREG_ACTL_ADDRESS);
}
u8
-vgahw_get_pel_mask()
+vgahw_get_pel_mask(void)
{
return inb(VGAREG_PEL_MASK);
}
* Memory control
****************************************************************/
+void
+vgahw_sequ_write(u8 index, u8 value)
+{
+ outw((value<<8) | index, VGAREG_SEQU_ADDRESS);
+}
+
+void
+vgahw_grdc_write(u8 index, u8 value)
+{
+ outw((value<<8) | index, VGAREG_GRDC_ADDRESS);
+}
+
void
vgahw_set_text_block_specifier(u8 spec)
{
}
void
-get_font_access()
+get_font_access(void)
{
outw(0x0100, VGAREG_SEQU_ADDRESS);
outw(0x0402, VGAREG_SEQU_ADDRESS);
}
void
-release_font_access()
+release_font_access(void)
{
outw(0x0100, VGAREG_SEQU_ADDRESS);
outw(0x0302, VGAREG_SEQU_ADDRESS);
****************************************************************/
static u16
-get_crtc()
+get_crtc(void)
{
return GET_BDA(crtc_address);
}
// Get vertical display end
u16
-vgahw_get_vde()
+vgahw_get_vde(void)
{
u16 crtc_addr = get_crtc();
outb(0x12, crtc_addr);
}
void
-vgahw_set_mode(struct VideoParam_s *vparam_g)
+vgahw_set_mode(struct vgamode_s *vmode_g)
{
// Reset Attribute Ctl flip-flop
inb(VGAREG_ACTL_RESET);
// Set Attribute Ctl
+ u8 *regs = GET_GLOBAL(vmode_g->actl_regs);
u16 i;
for (i = 0; i <= 0x13; i++) {
outb(i, VGAREG_ACTL_ADDRESS);
- outb(GET_GLOBAL(vparam_g->actl_regs[i]), VGAREG_ACTL_WRITE_DATA);
+ outb(GET_GLOBAL(regs[i]), VGAREG_ACTL_WRITE_DATA);
}
outb(0x14, VGAREG_ACTL_ADDRESS);
outb(0x00, VGAREG_ACTL_WRITE_DATA);
// Set Sequencer Ctl
outb(0, VGAREG_SEQU_ADDRESS);
outb(0x03, VGAREG_SEQU_DATA);
+ regs = GET_GLOBAL(vmode_g->sequ_regs);
for (i = 1; i <= 4; i++) {
outb(i, VGAREG_SEQU_ADDRESS);
- outb(GET_GLOBAL(vparam_g->sequ_regs[i - 1]), VGAREG_SEQU_DATA);
+ outb(GET_GLOBAL(regs[i - 1]), VGAREG_SEQU_DATA);
}
// Set Grafx Ctl
+ regs = GET_GLOBAL(vmode_g->grdc_regs);
for (i = 0; i <= 8; i++) {
outb(i, VGAREG_GRDC_ADDRESS);
- outb(GET_GLOBAL(vparam_g->grdc_regs[i]), VGAREG_GRDC_DATA);
+ outb(GET_GLOBAL(regs[i]), VGAREG_GRDC_DATA);
}
// Set CRTC address VGA or MDA
- u8 miscreg = GET_GLOBAL(vparam_g->miscreg);
+ u8 miscreg = GET_GLOBAL(vmode_g->miscreg);
u16 crtc_addr = VGAREG_VGA_CRTC_ADDRESS;
if (!(miscreg & 1))
crtc_addr = VGAREG_MDA_CRTC_ADDRESS;
// Disable CRTC write protection
outw(0x0011, crtc_addr);
// Set CRTC regs
+ regs = GET_GLOBAL(vmode_g->crtc_regs);
for (i = 0; i <= 0x18; i++) {
outb(i, crtc_addr);
- outb(GET_GLOBAL(vparam_g->crtc_regs[i]), crtc_addr + 1);
+ outb(GET_GLOBAL(regs[i]), crtc_addr + 1);
}
// Set the misc register
}
void
-vgahw_init()
+vgahw_init(void)
{
// switch to color mode and enable CPU access 480 lines
outb(0xc3, VGAREG_WRITE_MISC_OUTPUT);