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use super::{
ConsumeState, DecodeState, Error, KeyCode, ScancodeSet, EXTENDED_KEY_CODE, KEY_RELEASE_CODE,
};
/// Contains the implementation of Scancode Set 1.
/// See the OS dev wiki: https://wiki.osdev.org/PS/2_Keyboard#Scan_Code_Set_1
pub struct ScancodeSet1;
impl ScancodeSet for ScancodeSet1 {
/// Implements state logic for scancode set 1
fn advance_state(state: DecodeState, code: u8) -> Result<ConsumeState, Error> {
match state {
DecodeState::Start | DecodeState::Release | DecodeState::ExtendedRelease => {
match code {
EXTENDED_KEY_CODE => Ok(ConsumeState::Consume(DecodeState::Extended)),
0x81..=0xD8 => Ok(ConsumeState::Proceed(DecodeState::Release)),
_ => Ok(ConsumeState::Proceed(DecodeState::Start)),
}
}
DecodeState::Extended => match code {
0x90..=0xED => Ok(ConsumeState::Proceed(DecodeState::ExtendedRelease)),
_ => Ok(ConsumeState::Proceed(DecodeState::Extended)),
},
}
}
/// Implements the single byte codes for Set 1.
fn map_scancode(code: u8) -> Result<KeyCode, Error> {
match code {
0x01 => Ok(KeyCode::Escape), // 01
0x02 => Ok(KeyCode::Key1), // 02
0x03 => Ok(KeyCode::Key2), // 03
0x04 => Ok(KeyCode::Key3), // 04
0x05 => Ok(KeyCode::Key4), // 05
0x06 => Ok(KeyCode::Key5), // 06
0x07 => Ok(KeyCode::Key6), // 07
0x08 => Ok(KeyCode::Key7), // 08
0x09 => Ok(KeyCode::Key8), // 09
0x0A => Ok(KeyCode::Key9), // 0A
0x0B => Ok(KeyCode::Key0), // 0B
0x0C => Ok(KeyCode::Minus), // 0C
0x0D => Ok(KeyCode::Equals), // 0D
0x0E => Ok(KeyCode::Backspace), // 0E
0x0F => Ok(KeyCode::Tab), // 0F
0x10 => Ok(KeyCode::Q), // 10
0x11 => Ok(KeyCode::W), // 11
0x12 => Ok(KeyCode::E), // 12
0x13 => Ok(KeyCode::R), // 13
0x14 => Ok(KeyCode::T), // 14
0x15 => Ok(KeyCode::Y), // 15
0x16 => Ok(KeyCode::U), // 16
0x17 => Ok(KeyCode::I), // 17
0x18 => Ok(KeyCode::O), // 18
0x19 => Ok(KeyCode::P), // 19
0x1A => Ok(KeyCode::BracketSquareLeft), // 1A
0x1B => Ok(KeyCode::BracketSquareRight), // 1B
0x1C => Ok(KeyCode::Enter), // 1C
0x1D => Ok(KeyCode::ControlLeft), // 1D
0x1E => Ok(KeyCode::A), // 1E
0x1F => Ok(KeyCode::S), // 1F
0x20 => Ok(KeyCode::D), // 20
0x21 => Ok(KeyCode::F), // 21
0x22 => Ok(KeyCode::G), // 22
0x23 => Ok(KeyCode::H), // 23
0x24 => Ok(KeyCode::J), // 24
0x25 => Ok(KeyCode::K), // 25
0x26 => Ok(KeyCode::L), // 26
0x27 => Ok(KeyCode::SemiColon), // 27
0x28 => Ok(KeyCode::Quote), // 28
0x29 => Ok(KeyCode::BackTick), // 29
0x2A => Ok(KeyCode::ShiftLeft), // 2A
0x2B => Ok(KeyCode::BackSlash), // 2B
0x2C => Ok(KeyCode::Z), // 2C
0x2D => Ok(KeyCode::X), // 2D
0x2E => Ok(KeyCode::C), // 2E
0x2F => Ok(KeyCode::V), // 2F
0x30 => Ok(KeyCode::B), // 30
0x31 => Ok(KeyCode::N), // 31
0x32 => Ok(KeyCode::M), // 32
0x33 => Ok(KeyCode::Comma), // 33
0x34 => Ok(KeyCode::Fullstop), // 34
0x35 => Ok(KeyCode::Slash), // 35
0x36 => Ok(KeyCode::ShiftRight), // 36
0x37 => Ok(KeyCode::NumpadStar), // 37
0x38 => Ok(KeyCode::AltLeft), // 38
0x39 => Ok(KeyCode::Spacebar), // 39
0x3A => Ok(KeyCode::CapsLock), // 3A
0x3B => Ok(KeyCode::F1), // 3B
0x3C => Ok(KeyCode::F2), // 3C
0x3D => Ok(KeyCode::F3), // 3D
0x3E => Ok(KeyCode::F4), // 3E
0x3F => Ok(KeyCode::F5), // 3F
0x40 => Ok(KeyCode::F6), // 40
0x41 => Ok(KeyCode::F7), // 41
0x42 => Ok(KeyCode::F8), // 42
0x43 => Ok(KeyCode::F9), // 43
0x44 => Ok(KeyCode::F10), // 44
0x45 => Ok(KeyCode::NumpadLock), // 45
0x46 => Ok(KeyCode::ScrollLock), // 46
0x47 => Ok(KeyCode::Numpad7), // 47
0x48 => Ok(KeyCode::Numpad8), // 48
0x49 => Ok(KeyCode::Numpad9), // 49
0x4A => Ok(KeyCode::NumpadMinus), // 4A
0x4B => Ok(KeyCode::Numpad4), // 4B
0x4C => Ok(KeyCode::Numpad5), // 4C
0x4D => Ok(KeyCode::Numpad6), // 4D
0x4E => Ok(KeyCode::NumpadPlus), // 4E
0x4F => Ok(KeyCode::Numpad1), // 4F
0x50 => Ok(KeyCode::Numpad2), // 50
0x51 => Ok(KeyCode::Numpad3), // 51
0x52 => Ok(KeyCode::Numpad0), // 52
0x53 => Ok(KeyCode::NumpadPeriod), // 53
//0x54
//0x55
//0x56
0x57 => Ok(KeyCode::F11), // 57
0x58 => Ok(KeyCode::F12), // 58
0x81..=0xD8 => Ok(Self::map_scancode(code - 0x80)?),
_ => Err(Error::UnknownKeyCode),
}
}
/// Implements the extended byte codes for set 1 (prefixed with E0)
fn map_extended_scancode(code: u8) -> Result<KeyCode, Error> {
match code {
0x10 => Ok(KeyCode::PrevTrack), // E010
//0x11
//0x12
//0x13
//0x14
//0x15
//0x16
//0x17
//0x18
0x19 => Ok(KeyCode::NextTrack), // E019
//0x1A
//0x1B
0x1C => Ok(KeyCode::NumpadEnter), // E01C
0x1D => Ok(KeyCode::ControlRight), // E01D
//0x1E
//0x1F
0x20 => Ok(KeyCode::Mute), // E020
0x21 => Ok(KeyCode::Calculator), // E021
0x22 => Ok(KeyCode::Play), // E022
//0x23
0x24 => Ok(KeyCode::Stop), // E024
//0x25
//0x26
//0x27
//0x28
//0x29
//0x2A
//0x2B
//0x2C
//0x2D
0x2E => Ok(KeyCode::VolumeDown), // E02E
//0x2F
0x30 => Ok(KeyCode::VolumeUp), // E030
//0x31
0x32 => Ok(KeyCode::WWWHome), // E032
//0x33
//0x34
0x35 => Ok(KeyCode::NumpadSlash), // E035
//0x36
//0x37
0x38 => Ok(KeyCode::AltRight), // E038
//0x39
//0x3A
//0x3B
//0x3C
//0x3D
//0x3E
//0x3F
//0x40
//0x41
//0x42
//0x43
//0x44
//0x45
//0x46
0x47 => Ok(KeyCode::Home), // E047
0x48 => Ok(KeyCode::ArrowUp), // E048
0x49 => Ok(KeyCode::PageUp), // E049
//0x4A
0x4B => Ok(KeyCode::ArrowLeft), // E04B
//0x4C
0x4D => Ok(KeyCode::ArrowRight), // E04D
//0x4E
0x4F => Ok(KeyCode::End), // E04F
0x50 => Ok(KeyCode::ArrowDown), // E050
0x51 => Ok(KeyCode::PageDown), // E051
0x52 => Ok(KeyCode::Insert), // E052
0x53 => Ok(KeyCode::Delete), // E053
0x90..=0xED => Ok(Self::map_extended_scancode(code - 0x80)?),
_ => Err(Error::UnknownKeyCode),
}
}
}
/// Contains the implementation of Scancode Set 2.
/// See the OS dev wiki: https://wiki.osdev.org/PS/2_Keyboard#Scan_Code_Set_2
pub struct ScancodeSet2;
impl ScancodeSet for ScancodeSet2 {
/// Implements state logic for scancode set 2
fn advance_state(state: DecodeState, code: u8) -> Result<ConsumeState, Error> {
match state {
DecodeState::Start => {
match code {
EXTENDED_KEY_CODE => Ok(ConsumeState::Consume(DecodeState::Extended)),
KEY_RELEASE_CODE => Ok(ConsumeState::Consume(DecodeState::Release)),
_ => Ok(ConsumeState::Proceed(DecodeState::Start)),
}
}
DecodeState::Extended => match code {
KEY_RELEASE_CODE => Ok(ConsumeState::Consume(DecodeState::ExtendedRelease)),
_ => Ok(ConsumeState::Proceed(DecodeState::Extended)),
},
DecodeState::Release => Ok(ConsumeState::Proceed(DecodeState::Release)),
DecodeState::ExtendedRelease => Ok(ConsumeState::Proceed(DecodeState::ExtendedRelease))
}
}
/// Implements the single byte codes for Set 2.
fn map_scancode(code: u8) -> Result<KeyCode, Error> {
match code {
0x01 => Ok(KeyCode::F9), // 01
0x03 => Ok(KeyCode::F5), // 03
0x04 => Ok(KeyCode::F3), // 04
0x05 => Ok(KeyCode::F1), // 05
0x06 => Ok(KeyCode::F2), // 06
0x07 => Ok(KeyCode::F12), // 07
0x09 => Ok(KeyCode::F10), // 09
0x0A => Ok(KeyCode::F8), // 0A
0x0B => Ok(KeyCode::F6), // 0B
0x0C => Ok(KeyCode::F4), // 0C
0x0D => Ok(KeyCode::Tab), // 0D
0x0E => Ok(KeyCode::BackTick), // 0E
0x11 => Ok(KeyCode::AltLeft), // 11
0x12 => Ok(KeyCode::ShiftLeft), // 12
0x14 => Ok(KeyCode::ControlLeft), // 14
0x15 => Ok(KeyCode::Q), // 15
0x16 => Ok(KeyCode::Key1), // 16
0x1A => Ok(KeyCode::Z), // 1A
0x1B => Ok(KeyCode::S), // 1B
0x1C => Ok(KeyCode::A), // 1C
0x1D => Ok(KeyCode::W), // 1D
0x1e => Ok(KeyCode::Key2), // 1e
0x21 => Ok(KeyCode::C), // 21
0x22 => Ok(KeyCode::X), // 22
0x23 => Ok(KeyCode::D), // 23
0x24 => Ok(KeyCode::E), // 24
0x25 => Ok(KeyCode::Key4), // 25
0x26 => Ok(KeyCode::Key3), // 26
0x29 => Ok(KeyCode::Spacebar), // 29
0x2A => Ok(KeyCode::V), // 2A
0x2B => Ok(KeyCode::F), // 2B
0x2C => Ok(KeyCode::T), // 2C
0x2D => Ok(KeyCode::R), // 2D
0x2E => Ok(KeyCode::Key5), // 2E
0x31 => Ok(KeyCode::N), // 31
0x32 => Ok(KeyCode::B), // 32
0x33 => Ok(KeyCode::H), // 33
0x34 => Ok(KeyCode::G), // 34
0x35 => Ok(KeyCode::Y), // 35
0x36 => Ok(KeyCode::Key6), // 36
0x3A => Ok(KeyCode::M), // 3A
0x3B => Ok(KeyCode::J), // 3B
0x3C => Ok(KeyCode::U), // 3C
0x3D => Ok(KeyCode::Key7), // 3D
0x3E => Ok(KeyCode::Key8), // 3E
0x41 => Ok(KeyCode::Comma), // 41
0x42 => Ok(KeyCode::K), // 42
0x43 => Ok(KeyCode::I), // 43
0x44 => Ok(KeyCode::O), // 44
0x45 => Ok(KeyCode::Key0), // 45
0x46 => Ok(KeyCode::Key9), // 46
0x49 => Ok(KeyCode::Fullstop), // 49
0x4A => Ok(KeyCode::Slash), // 4A
0x4B => Ok(KeyCode::L), // 4B
0x4C => Ok(KeyCode::SemiColon), // 4C
0x4D => Ok(KeyCode::P), // 4D
0x4E => Ok(KeyCode::Minus), // 4E
0x52 => Ok(KeyCode::Quote), // 52
0x54 => Ok(KeyCode::BracketSquareLeft), // 54
0x55 => Ok(KeyCode::Equals), // 55
0x58 => Ok(KeyCode::CapsLock), // 58
0x59 => Ok(KeyCode::ShiftRight), // 59
0x5A => Ok(KeyCode::Enter), // 5A
0x5B => Ok(KeyCode::BracketSquareRight), // 5B
0x5D => Ok(KeyCode::BackSlash), // 5D
0x66 => Ok(KeyCode::Backspace), // 66
0x69 => Ok(KeyCode::Numpad1), // 69
0x6B => Ok(KeyCode::Numpad4), // 6B
0x6C => Ok(KeyCode::Numpad7), // 6C
0x70 => Ok(KeyCode::Numpad0), // 70
0x71 => Ok(KeyCode::NumpadPeriod), // 71
0x72 => Ok(KeyCode::Numpad2), // 72
0x73 => Ok(KeyCode::Numpad5), // 73
0x74 => Ok(KeyCode::Numpad6), // 74
0x75 => Ok(KeyCode::Numpad8), // 75
0x76 => Ok(KeyCode::Escape), // 76
0x77 => Ok(KeyCode::NumpadLock), // 77
0x78 => Ok(KeyCode::F11), // 78
0x79 => Ok(KeyCode::NumpadPlus), // 79
0x7A => Ok(KeyCode::Numpad3), // 7A
0x7B => Ok(KeyCode::NumpadMinus), // 7B
0x7C => Ok(KeyCode::NumpadStar), // 7C
0x7D => Ok(KeyCode::Numpad9), // 7D
0x7E => Ok(KeyCode::ScrollLock), // 7E
0x83 => Ok(KeyCode::F7), // 83
_ => Err(Error::UnknownKeyCode),
}
}
/// Implements the extended byte codes for set 1 (prefixed with E0)
fn map_extended_scancode(code: u8) -> Result<KeyCode, Error> {
match code {
0x11 => Ok(KeyCode::AltRight), // E011
0x14 => Ok(KeyCode::ControlRight), // E014
0x1F => Ok(KeyCode::WindowsLeft), // E01F
0x27 => Ok(KeyCode::WindowsRight), // E027
0x2F => Ok(KeyCode::Menus), // E02F
0x4A => Ok(KeyCode::NumpadSlash), // E04A
0x5A => Ok(KeyCode::NumpadEnter), // E05A
0x69 => Ok(KeyCode::End), // E069
0x6B => Ok(KeyCode::ArrowLeft), // E06B
0x6C => Ok(KeyCode::Home), // E06C
0x70 => Ok(KeyCode::Insert), // E070
0x71 => Ok(KeyCode::Delete), // E071
0x72 => Ok(KeyCode::ArrowDown), // E072
0x74 => Ok(KeyCode::ArrowRight), // E074
0x75 => Ok(KeyCode::ArrowUp), // E075
0x7A => Ok(KeyCode::PageDown), // E07A
0x7D => Ok(KeyCode::PageUp), // E07D
_ => Err(Error::UnknownKeyCode),
}
}
}