75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Base class for Apple Desktop Bus devices. */
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#ifndef ADB_DEVICE_H
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#define ADB_DEVICE_H
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#include <devices/common/hwcomponent.h>
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#include <string>
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/** Common ADB device addresses/types. */
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enum {
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ADB_ADDR_KBD = 2, // keyboards
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ADB_ADDR_RELPOS = 3, // relative position devices (mouse)
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ADB_ADDR_ABSPOS = 4, // absolute position devices (graphic tablets)
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};
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class AdbBus; // forward declaration to prevent compiler errors
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class AdbDevice : public HWComponent {
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public:
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AdbDevice(std::string name);
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~AdbDevice() = default;
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int device_postinit() override;
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virtual void reset() = 0;
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virtual bool talk(const uint8_t dev_addr, const uint8_t reg_num);
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virtual void listen(const uint8_t dev_addr, const uint8_t reg_num);
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virtual uint8_t get_address() { return this->my_addr; };
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protected:
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uint8_t gen_random_address();
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virtual bool get_register_0() { return false; };
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virtual bool get_register_1() { return false; };
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virtual bool get_register_2() { return false; };
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virtual bool get_register_3();
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virtual void set_register_0() {};
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virtual void set_register_1() {};
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virtual void set_register_2() {};
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virtual void set_register_3() {};
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uint8_t exc_event_flag = 0;
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uint8_t srq_flag = 0;
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uint8_t my_addr = 0;
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uint8_t dev_handler_id = 0;
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bool got_collision = false;
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AdbBus* host_obj = nullptr;
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};
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#endif // ADB_DEVICE_H
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