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https://github.com/TomHarte/CLK.git
synced 2026-04-25 11:17:26 +00:00
Makes attempt at keyboard mapping.
This commit is contained in:
Thomas Harte
+202
-36
@@ -13,46 +13,212 @@ using namespace Apple::ADB;
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Keyboard::Keyboard(Bus &bus) : ReactiveDevice(bus, 2) {}
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void Keyboard::perform_command(const Command &command) {
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if(command.type == Command::Type::Talk) {
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switch(command.reg) {
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case 0:
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// Post up to two key events, or nothing if there are
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// no events pending.
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//
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// Events are:
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//
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// b7 = 0 for down 1, for up;
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// b6–b0: key code (mostly 7-bit ASCII)
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// post_response({0x00, 0x00});
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break;
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switch(command.type) {
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case Command::Type::Reset:
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modifiers_ = 0xffff;
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case Command::Type::Flush: {
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std::lock_guard lock_guard(keys_mutex_);
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pending_events_.clear();
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} break;
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case 2:
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/*
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In all cases below: 0 = pressed/on; 1 = released/off.
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case Command::Type::Talk:
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switch(command.reg) {
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case 0: {
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// Post up to two key events, or nothing if there are
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// no events pending.
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std::lock_guard lock_guard(keys_mutex_);
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b15: None (reserved)
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b14: Delete
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b13: Caps lock
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b12: Reset
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b11: Control
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b10: Shift
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b9: Option
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b8: Command
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if(!pending_events_.empty()) {
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if(pending_events_.size() > 1) {
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post_response({pending_events_[0], pending_events_[1]});
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pending_events_.erase(pending_events_.begin(), pending_events_.begin()+2);
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} else {
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// Two bytes are required; provide a key up of the fictional
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// key zero as the second.
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// That's arbitrary; verify with real machines.
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post_response({pending_events_[0], 0x80});
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pending_events_.clear();
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}
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}
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} break;
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-- From here onwards, available only on the extended keyboard.
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case 2: {
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std::lock_guard lock_guard(keys_mutex_);
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post_response({uint8_t(modifiers_ >> 8), uint8_t(modifiers_)});
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} break;
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b7: Num lock/clear
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b6: Scroll lock
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b5–3: None (reserved)
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b2: Scroll Lock LED
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b1: Caps Lock LED
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b0: Num Lock LED
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*/
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post_response({0xff, 0xff});
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break;
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default: break;
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}
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break;
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default: break;
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}
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return;
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default: break;
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}
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}
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bool Keyboard::set_key_pressed(Key key, bool is_pressed) {
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// ADB keyboard events: low 7 bits are a key code; bit 7 is either 0 for pressed or 1 for released.
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std::lock_guard lock_guard(keys_mutex_);
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pending_events_.push_back(uint8_t(key) | (is_pressed ? 0x00 : 0x80));
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pressed_keys_[size_t(key)] = is_pressed;
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// Track modifier state also.
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/*
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In all cases below: 0 = pressed/on; 1 = released/off.
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b15: None (reserved)
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b14: Delete
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b13: Caps lock
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b12: Reset
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b11: Control
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b10: Shift
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b9: Option
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b8: Command
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-- From here onwards, available only on the extended keyboard.
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b7: Num lock/clear
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b6: Scroll lock
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b5–3: None (reserved)
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b2: Scroll Lock LED
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b1: Caps Lock LED
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b0: Num Lock LED
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*/
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#define SetModifierBit(x) modifiers_ = (modifiers_ & ~x) | (is_pressed ? 0 : x);
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#define ToggleModifierBit(x) if(is_pressed) modifiers_ ^= x;
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switch(key) {
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default: break;
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case Key::Delete: SetModifierBit(0x4000); break;
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case Key::CapsLock: ToggleModifierBit(0x2000); break;
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case Key::Power: SetModifierBit(0x1000); break;
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case Key::LeftControl:
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case Key::RightControl:
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SetModifierBit(0x0800);
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break;
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case Key::LeftShift:
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case Key::RightShift:
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SetModifierBit(0x0400);
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break;
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case Key::LeftOption:
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case Key::RightOption:
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SetModifierBit(0x0200);
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break;
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case Key::Command:
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SetModifierBit(0x0100);
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break;
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case Key::KeypadClear: ToggleModifierBit(0x0080); break;
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case Key::Help: ToggleModifierBit(0x0040); break;
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}
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#undef SetModifierBit
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return true;
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}
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void Keyboard::clear_all_keys() {
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// For all keys currently marked as down, enqueue key-up actions.
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std::lock_guard lock_guard(keys_mutex_);
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for(size_t key = 0; key < pressed_keys_.size(); key++) {
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if(pressed_keys_[key]) {
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pending_events_.push_back(0x80 | uint8_t(key));
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pressed_keys_[key] = false;
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}
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}
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// Mark all modifiers as released.
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modifiers_ |= 0xfff8;
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}
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// MARK: - KeyboardMapper
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uint16_t KeyboardMapper::mapped_key_for_key(Inputs::Keyboard::Key key) const {
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using Key = Inputs::Keyboard::Key;
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using ADBKey = Apple::ADB::Key;
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switch(key) {
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default: return MachineTypes::MappedKeyboardMachine::KeyNotMapped;
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#define Bind(x, y) case Key::x: return uint16_t(ADBKey::y)
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#define BindDirect(x) Bind(x, x)
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BindDirect(BackTick);
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BindDirect(k1); BindDirect(k2); BindDirect(k3); BindDirect(k4); BindDirect(k5);
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BindDirect(k6); BindDirect(k7); BindDirect(k8); BindDirect(k9); BindDirect(k0);
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BindDirect(Help);
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BindDirect(Home);
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BindDirect(PageUp);
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BindDirect(Delete);
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BindDirect(End);
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BindDirect(PageDown);
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BindDirect(Escape);
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BindDirect(Hyphen);
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BindDirect(Equals);
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BindDirect(Backspace);
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BindDirect(Tab);
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BindDirect(F1); BindDirect(F2); BindDirect(F3); BindDirect(F4);
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BindDirect(F5); BindDirect(F6); BindDirect(F7); BindDirect(F8);
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BindDirect(F9); BindDirect(F10); BindDirect(F11); BindDirect(F12);
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BindDirect(Q); BindDirect(W); BindDirect(E); BindDirect(R);
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BindDirect(T); BindDirect(Y); BindDirect(U); BindDirect(I);
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BindDirect(O); BindDirect(P); BindDirect(A); BindDirect(S);
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BindDirect(D); BindDirect(F); BindDirect(G); BindDirect(H);
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BindDirect(J); BindDirect(K); BindDirect(L); BindDirect(Z);
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BindDirect(X); BindDirect(C); BindDirect(V); BindDirect(B);
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BindDirect(N); BindDirect(M);
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BindDirect(OpenSquareBracket);
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BindDirect(CloseSquareBracket);
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BindDirect(Semicolon);
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BindDirect(Quote);
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BindDirect(Comma);
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BindDirect(FullStop);
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BindDirect(ForwardSlash);
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BindDirect(CapsLock);
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BindDirect(LeftShift); BindDirect(RightShift);
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BindDirect(LeftControl); BindDirect(RightControl);
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BindDirect(LeftOption); BindDirect(RightOption);
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Bind(LeftMeta, Command); Bind(RightMeta, Command);
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BindDirect(Space);
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BindDirect(Backslash);
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Bind(Enter, Return);
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BindDirect(Left); BindDirect(Right);
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BindDirect(Up); BindDirect(Down);
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Bind(KeypadDelete, KeypadClear);
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BindDirect(KeypadEquals);
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BindDirect(KeypadSlash);
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BindDirect(KeypadAsterisk);
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BindDirect(KeypadMinus);
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BindDirect(KeypadPlus);
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BindDirect(KeypadEnter);
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BindDirect(KeypadDecimalPoint);
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BindDirect(Keypad9);
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BindDirect(Keypad8);
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BindDirect(Keypad7);
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BindDirect(Keypad6);
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BindDirect(Keypad5);
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BindDirect(Keypad4);
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BindDirect(Keypad3);
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BindDirect(Keypad2);
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BindDirect(Keypad1);
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BindDirect(Keypad0);
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// Leaving unmapped:
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// Power, F13, F14, F15
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#undef BindDirect
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#undef Bind
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}
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}
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