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const std = @import("std");
const uefi = std.os.uefi;
const Guid = uefi.Guid;
const Status = uefi.Status;
const cc = uefi.cc;
const Error = Status.Error;
/// Character output devices
pub const SimpleTextOutput = extern struct {
_reset: *const fn (*SimpleTextOutput, bool) callconv(cc) Status,
_output_string: *const fn (*SimpleTextOutput, [*:0]const u16) callconv(cc) Status,
_test_string: *const fn (*const SimpleTextOutput, [*:0]const u16) callconv(cc) Status,
_query_mode: *const fn (*const SimpleTextOutput, usize, *usize, *usize) callconv(cc) Status,
_set_mode: *const fn (*SimpleTextOutput, usize) callconv(cc) Status,
_set_attribute: *const fn (*SimpleTextOutput, usize) callconv(cc) Status,
_clear_screen: *const fn (*SimpleTextOutput) callconv(cc) Status,
_set_cursor_position: *const fn (*SimpleTextOutput, usize, usize) callconv(cc) Status,
_enable_cursor: *const fn (*SimpleTextOutput, bool) callconv(cc) Status,
mode: *Mode,
pub const ResetError = uefi.UnexpectedError || error{DeviceError};
pub const OutputStringError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
pub const QueryModeError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
pub const SetModeError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
pub const SetAttributeError = uefi.UnexpectedError || error{DeviceError};
pub const ClearScreenError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
pub const SetCursorPositionError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
pub const EnableCursorError = uefi.UnexpectedError || error{
DeviceError,
Unsupported,
};
/// Resets the text output device hardware.
pub fn reset(self: *SimpleTextOutput, verify: bool) ResetError!void {
switch (self._reset(self, verify)) {
.success => {},
.device_error => return Error.DeviceError,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Writes a string to the output device.
///
/// Returns `true` if the string was successfully written, `false` if an unknown glyph was encountered.
pub fn outputString(self: *SimpleTextOutput, msg: [*:0]const u16) OutputStringError!bool {
switch (self._output_string(self, msg)) {
.success => return true,
.warn_unknown_glyph => return false,
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Verifies that all characters in a string can be output to the target device.
pub fn testString(self: *const SimpleTextOutput, msg: [*:0]const u16) uefi.UnexpectedError!bool {
switch (self._test_string(self, msg)) {
.success => return true,
.unsupported => return false,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Returns information for an available text mode that the output device(s) supports.
pub fn queryMode(self: *const SimpleTextOutput, mode_number: usize) QueryModeError!Geometry {
var geo: Geometry = undefined;
switch (self._query_mode(self, mode_number, &geo.columns, &geo.rows)) {
.success => return geo,
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Sets the output device(s) to a specified mode.
pub fn setMode(self: *SimpleTextOutput, mode_number: usize) SetModeError!void {
switch (self._set_mode(self, mode_number)) {
.success => {},
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Sets the background and foreground colors for the outputString() and clearScreen() functions.
pub fn setAttribute(self: *SimpleTextOutput, attribute: Attribute) SetAttributeError!void {
const attr_as_num: u8 = @bitCast(attribute);
switch (self._set_attribute(self, @intCast(attr_as_num))) {
.success => {},
.device_error => return Error.DeviceError,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Clears the output device(s) display to the currently selected background color.
pub fn clearScreen(self: *SimpleTextOutput) ClearScreenError!void {
switch (self._clear_screen(self)) {
.success => {},
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Sets the current coordinates of the cursor position.
pub fn setCursorPosition(
self: *SimpleTextOutput,
column: usize,
row: usize,
) SetCursorPositionError!void {
switch (self._set_cursor_position(self, column, row)) {
.success => {},
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
/// Makes the cursor visible or invisible.
pub fn enableCursor(self: *SimpleTextOutput, visible: bool) EnableCursorError!void {
switch (self._enable_cursor(self, visible)) {
.success => {},
.device_error => return Error.DeviceError,
.unsupported => return Error.Unsupported,
else => |status| return uefi.unexpectedStatus(status),
}
}
pub const guid align(8) = Guid{
.time_low = 0x387477c2,
.time_mid = 0x69c7,
.time_high_and_version = 0x11d2,
.clock_seq_high_and_reserved = 0x8e,
.clock_seq_low = 0x39,
.node = [_]u8{ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b },
};
pub const boxdraw_horizontal: u16 = 0x2500;
pub const boxdraw_vertical: u16 = 0x2502;
pub const boxdraw_down_right: u16 = 0x250c;
pub const boxdraw_down_left: u16 = 0x2510;
pub const boxdraw_up_right: u16 = 0x2514;
pub const boxdraw_up_left: u16 = 0x2518;
pub const boxdraw_vertical_right: u16 = 0x251c;
pub const boxdraw_vertical_left: u16 = 0x2524;
pub const boxdraw_down_horizontal: u16 = 0x252c;
pub const boxdraw_up_horizontal: u16 = 0x2534;
pub const boxdraw_vertical_horizontal: u16 = 0x253c;
pub const boxdraw_double_horizontal: u16 = 0x2550;
pub const boxdraw_double_vertical: u16 = 0x2551;
pub const boxdraw_down_right_double: u16 = 0x2552;
pub const boxdraw_down_double_right: u16 = 0x2553;
pub const boxdraw_double_down_right: u16 = 0x2554;
pub const boxdraw_down_left_double: u16 = 0x2555;
pub const boxdraw_down_double_left: u16 = 0x2556;
pub const boxdraw_double_down_left: u16 = 0x2557;
pub const boxdraw_up_right_double: u16 = 0x2558;
pub const boxdraw_up_double_right: u16 = 0x2559;
pub const boxdraw_double_up_right: u16 = 0x255a;
pub const boxdraw_up_left_double: u16 = 0x255b;
pub const boxdraw_up_double_left: u16 = 0x255c;
pub const boxdraw_double_up_left: u16 = 0x255d;
pub const boxdraw_vertical_right_double: u16 = 0x255e;
pub const boxdraw_vertical_double_right: u16 = 0x255f;
pub const boxdraw_double_vertical_right: u16 = 0x2560;
pub const boxdraw_vertical_left_double: u16 = 0x2561;
pub const boxdraw_vertical_double_left: u16 = 0x2562;
pub const boxdraw_double_vertical_left: u16 = 0x2563;
pub const boxdraw_down_horizontal_double: u16 = 0x2564;
pub const boxdraw_down_double_horizontal: u16 = 0x2565;
pub const boxdraw_double_down_horizontal: u16 = 0x2566;
pub const boxdraw_up_horizontal_double: u16 = 0x2567;
pub const boxdraw_up_double_horizontal: u16 = 0x2568;
pub const boxdraw_double_up_horizontal: u16 = 0x2569;
pub const boxdraw_vertical_horizontal_double: u16 = 0x256a;
pub const boxdraw_vertical_double_horizontal: u16 = 0x256b;
pub const boxdraw_double_vertical_horizontal: u16 = 0x256c;
pub const blockelement_full_block: u16 = 0x2588;
pub const blockelement_light_shade: u16 = 0x2591;
pub const geometricshape_up_triangle: u16 = 0x25b2;
pub const geometricshape_right_triangle: u16 = 0x25ba;
pub const geometricshape_down_triangle: u16 = 0x25bc;
pub const geometricshape_left_triangle: u16 = 0x25c4;
pub const arrow_up: u16 = 0x2591;
pub const arrow_down: u16 = 0x2593;
pub const Attribute = packed struct(u8) {
foreground: ForegroundColor = .white,
background: BackgroundColor = .black,
pub const ForegroundColor = enum(u4) {
black,
blue,
green,
cyan,
red,
magenta,
brown,
lightgray,
darkgray,
lightblue,
lightgreen,
lightcyan,
lightred,
lightmagenta,
yellow,
white,
};
pub const BackgroundColor = enum(u4) {
black,
blue,
green,
cyan,
red,
magenta,
brown,
lightgray,
};
};
pub const Mode = extern struct {
max_mode: u32, // specified as signed
mode: u32, // specified as signed
attribute: i32,
cursor_column: i32,
cursor_row: i32,
cursor_visible: bool,
};
pub const Geometry = struct {
columns: usize,
rows: usize,
};
};
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