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-- SPDX-License-Identifier: GPL-2.0-only
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.GFX_Init
is
procedure gfxinit (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 (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
HW.GFX.GMA.Power_Up_VGA;
vga_io_init;
vga_textmode_init;
-- override probed framebuffer config
configs (Primary).Framebuffer.Width := 640;
configs (Primary).Framebuffer.Height := 400;
configs (Primary).Framebuffer.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.GFX_Init;
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