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a51d143c35
Albeit that I'm still not properly responding to register 3 stuff, so the ADB bus needn't believe anything is out there. Also, without VSYNC being piped to the microcontroller it may well just not be polling anyway.
59 lines
1.1 KiB
C++
59 lines
1.1 KiB
C++
//
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// Keyboard.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 13/02/2021.
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// Copyright © 2021 Thomas Harte. All rights reserved.
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//
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#include "Keyboard.hpp"
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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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case 2:
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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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post_response({0xff, 0xff});
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break;
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default: break;
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}
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return;
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}
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}
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