dingusppc/devices/common/adb/adbkeyboard.cpp

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/** @file Apple Desktop Bus Keyboard emulation. */
#include <devices/common/adb/adbkeyboard.h>
#include <devices/deviceregistry.h>
AdbKeyboard::AdbKeyboard(std::string name) : AdbDevice(name) {
EventManager::get_instance()->add_keyboard_handler(this, &AdbKeyboard::event_handler);
this->reset();
}
void AdbKeyboard::event_handler(const KeyboardEvent& event) {
if (event.flags & KEYBOARD_EVENT_DOWN) {
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}
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else if (event.flags & KEYBOARD_EVENT_UP) {
}
}
void AdbKeyboard::reset() {
this->my_addr = ADB_ADDR_KBD;
this->dev_handler_id = 2; // Extended ADB keyboard
this->exc_event_flag = 2;
this->srq_flag = 1; // enable service requests
}
bool AdbKeyboard::get_register_0() {
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return false;
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}
void AdbKeyboard::set_register_2() {
}
void AdbKeyboard::set_register_3() {
if (this->host_obj->get_input_count() < 2) // ensure we got enough data
return;
const uint8_t* in_data = this->host_obj->get_input_buf();
switch (in_data[1]) {
case 0:
this->my_addr = in_data[0] & 0xF;
this->srq_flag = !!(in_data[0] & 0x20);
break;
case 1:
case 2:
this->dev_handler_id = in_data[1];
break;
case 3: // extended keyboard protocol isn't supported yet
break;
case 0xFE: // move to a new address if there was no collision
if (!this->got_collision) {
this->my_addr = in_data[0] & 0xF;
}
break;
default:
LOG_F(WARNING, "%s: unknown handler ID = 0x%X", this->name.c_str(), in_data[1]);
}
}
static const DeviceDescription AdbKeyboard_Descriptor = {
AdbKeyboard::create, {}, {}
};
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REGISTER_DEVICE(AdbKeyboard, AdbKeyboard_Descriptor);