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const std = @import("../../../std.zig");
const uefi = std.os.uefi;
const Guid = uefi.Guid;
const Handle = uefi.Handle;
const Status = uefi.Status;
const cc = uefi.cc;
const Error = Status.Error;
/// EDID information for an active video output device
pub const Active = extern struct {
size_of_edid: u32,
edid: ?[*]u8,
pub const guid align(8) = Guid{
.time_low = 0xbd8c1056,
.time_mid = 0x9f36,
.time_high_and_version = 0x44ec,
.clock_seq_high_and_reserved = 0x92,
.clock_seq_low = 0xa8,
.node = [_]u8{ 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86 },
};
};
/// EDID information for a video output device
pub const Discovered = extern struct {
size_of_edid: u32,
edid: ?[*]u8,
pub const guid align(8) = Guid{
.time_low = 0x1c0c34f6,
.time_mid = 0xd380,
.time_high_and_version = 0x41fa,
.clock_seq_high_and_reserved = 0xa0,
.clock_seq_low = 0x49,
.node = [_]u8{ 0x8a, 0xd0, 0x6c, 0x1a, 0x66, 0xaa },
};
};
/// Override EDID information
pub const Override = extern struct {
_get_edid: *const fn (*const Override, *const Handle, *Attributes, *usize, *?[*]u8) callconv(cc) Status,
pub const GetEdidError = uefi.UnexpectedError || error{
Unsupported,
};
/// Returns policy information and potentially a replacement EDID for the specified video output device.
pub fn getEdid(self: *const Override, handle: Handle) GetEdidError!Edid {
var size: usize = undefined;
var ptr: ?[*]u8 = undefined;
var attributes: Attributes = undefined;
switch (self._get_edid(self, &handle, &attributes, &size, &ptr)) {
.success => {},
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
return .{
.attributes = attributes,
.edid = if (ptr) |p| p[0..size] else null,
};
}
pub const guid align(8) = Guid{
.time_low = 0x48ecb431,
.time_mid = 0xfb72,
.time_high_and_version = 0x45c0,
.clock_seq_high_and_reserved = 0xa9,
.clock_seq_low = 0x22,
.node = [_]u8{ 0xf4, 0x58, 0xfe, 0x04, 0x0b, 0xd5 },
};
pub const Edid = struct {
attributes: Attributes,
edid: ?[]u8,
};
pub const Attributes = packed struct(u32) {
dont_override: bool,
enable_hot_plug: bool,
_pad: u30 = 0,
};
};
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