69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
// (C) 2024 by Folkert van Heusden
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// Released under MIT license
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#pragma once
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#include <atomic>
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#include <condition_variable>
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#include <cstdint>
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#include <mutex>
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#include <thread>
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#include <vector>
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#include "comm.h"
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#include "device.h"
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#include "gen.h"
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#include "bus.h"
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#include "log.h"
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#define DC11_RCSR 0174000 // receiver status register
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#define DC11_BASE DC11_RCSR
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#define DC11_END (DC11_BASE + (4 * 4 + 1) * 2) // 4 interfaces, + 2 to point behind it
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class Stream;
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class bus;
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// 4 interfaces
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constexpr const int dc11_n_lines = 4;
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class dc11: public device
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{
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private:
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bus *const b { nullptr };
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uint16_t registers[4 * dc11_n_lines] { 0 };
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std::atomic_bool stop_flag { false };
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std::thread *th { nullptr };
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std::vector<comm *> comm_interfaces;
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std::vector<bool > connected;
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std::vector<char> recv_buffers[dc11_n_lines];
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mutable std::mutex input_lock [dc11_n_lines];
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void trigger_interrupt(const int line_nr, const bool is_tx);
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bool is_rx_interrupt_enabled(const int line_nr) const;
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bool is_tx_interrupt_enabled(const int line_nr) const;
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public:
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dc11(bus *const b, const std::vector<comm *> & comm_interfaces);
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virtual ~dc11();
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#if IS_POSIX
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// json_t *serialize();
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// static tty *deserialize(const json_t *const j, bus *const b, console *const cnsl);
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#endif
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void reset() override;
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void show_state(console *const cnsl) const override;
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void test_port(const size_t port_nr, const std::string & txt) const;
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void test_ports(const std::string & txt) const;
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uint8_t read_byte(const uint16_t addr) override;
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uint16_t read_word(const uint16_t addr) override;
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void write_byte(const uint16_t addr, const uint8_t v) override;
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void write_word(const uint16_t addr, const uint16_t v) override;
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void operator()();
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};
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