dingusppc/devices/adb.h

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-20 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/>.
*/
#ifndef ADB_H
#define ADB_H
#include <cinttypes>
#if 0
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#include <thirdparty/SDL2/include/SDL.h>
#include <thirdparty/SDL2/include/SDL_events.h>
#endif
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enum adb_default_values {
adb_reserved0,
adb_reserved1,
adb_encoded,
adb_relative,
adb_absolute,
adb_reserved5,
adb_reserved6,
adb_reserved7,
adb_other8,
adb_other9,
adb_other10,
adb_other11,
adb_other12,
adb_other13,
adb_other14,
adb_other15
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};
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class ADB_Bus {
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public:
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ADB_Bus();
~ADB_Bus();
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bool listen(int device, int reg);
bool talk(int device, int reg, uint16_t value);
bool bus_reset();
bool set_addr(int dev_addr, int new_addr);
bool flush(int dev_addr);
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bool adb_keybd_listen(int reg);
bool adb_mouse_listen(int reg);
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uint8_t get_input_byte(int offset);
uint8_t get_output_byte(int offset);
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int get_input_len();
int get_output_len();
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private:
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int keyboard_access_no;
int mouse_access_no;
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// Keyboard Variables
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uint16_t adb_keybd_register0;
uint16_t adb_keybd_register2;
uint16_t adb_keybd_register3;
//SDL_Event adb_keybd_evt;
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uint8_t ask_key_pressed;
uint8_t mod_key_pressed;
bool confirm_ask_reg_2;
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// Mouse Variables
//SDL_Event adb_mouse_evt;
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uint16_t adb_mouse_register0;
uint16_t adb_mouse_register3;
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uint8_t input_data_stream[16]; // temp buffer
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int input_stream_len;
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uint8_t output_data_stream[16]; // temp buffer
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int output_stream_len;
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};
#endif /* ADB_H */