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with HW.GFX;
with HW.GFX.GMA;
with HW.GFX.GMA.Display_Probing;
use HW.GFX;
use HW.GFX.GMA;
use HW.GFX.GMA.Display_Probing;
with GMA.Mainboard;
package body GMA
is
function fill_lb_framebuffer
(framebuffer : in out lb_framebuffer)
return Interfaces.C.int
is
use type Interfaces.C.int;
begin
return -1;
end fill_lb_framebuffer;
----------------------------------------------------------------------------
procedure gfxinit
(mmio_base : in word64;
linear_fb : in word64;
phys_fb : in word32;
lightup_ok : out Interfaces.C.int)
is
ports : Port_List;
configs : Pipe_Configs;
success : boolean;
-- from pc80/vga driver
procedure vga_io_init;
pragma Import (C, vga_io_init, "vga_io_init");
procedure vga_textmode_init;
pragma Import (C, vga_textmode_init, "vga_textmode_init");
begin
lightup_ok := 0;
HW.GFX.GMA.Initialize
(MMIO_Base => mmio_base,
Success => success);
if success then
ports := Mainboard.ports;
HW.GFX.GMA.Display_Probing.Scan_Ports
(Configs => configs,
Ports => ports,
Max_Pipe => Primary);
if configs (Primary).Port /= Disabled then
vga_io_init;
vga_textmode_init;
configs (Primary).Framebuffer :=
(Width => 640,
Height => 400,
BPC => Auto_BPC, -- ignored for VGA plane
Stride => 320, -- ignored
Offset => VGA_PLANE_FRAMEBUFFER_OFFSET);
HW.GFX.GMA.Dump_Configs (configs);
HW.GFX.GMA.Update_Outputs (configs);
lightup_ok := 1;
end if;
end if;
end gfxinit;
end GMA;
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