mirror of
https://github.com/halleysfifthinc/AVCLAN-Mockingboard.git
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Allen Hill
94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
// copyright (C) 2006 Marcin Slonicki <marcin@softservice.com.pl>
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// copyright (C) 2007 Louis Frigon
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// Copyright (C) 2015 Allen Hill <allenofthehills@gmail.com>
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// SPDX-License-Identifier: GPL-3.0-or-later
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#pragma once
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#include <cstdint>
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#include "avclan.hpp"
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#include "avclan_defs.h"
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#include "frame.hpp"
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namespace avclan {
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class CDChanger {
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public:
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enum State : uint8_t {
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OPEN = 0x01,
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ERR1 = 0x02,
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SEEKING = 0x08,
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PLAYBACK = 0x10,
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SEEKING_TRACK = 0x20,
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LOADING = 0x80,
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};
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enum CD : uint8_t {
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CD1 = 1 << 0,
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CD2 = 1 << 1,
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CD3 = 1 << 2,
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CD4 = 1 << 3,
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CD5 = 1 << 4,
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CD6 = 1 << 5,
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};
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enum Flags : uint8_t {
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DISK_RANDOM = 1 << 1,
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RANDOM = 1 << 2,
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DISK_REPEAT = 1 << 3,
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REPEAT = 1 << 4,
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DISK_SCAN = 1 << 5,
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SCAN = 1 << 6,
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};
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/// Message state machine
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// - r_Nothing (0x00) means don't send current message
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// - All other instances mean send current message and imply the presence of
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// follow-up messages within state machine
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enum reaction_t : uint8_t {
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r_Nothing = 0x00,
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r_SendOnly, // No further follow-up needed (beyond sending current)
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r_StatusReport, // Needs follow-up status report
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r_NormalizeState, // cd_status needs normalized and resent
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r_StartPlaying, // ~equivalent to normalizeState, but cycles to BeganPlaying
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r_BeganPlaying,
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r_TrackChange, // Time needs reset
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r_Ejection,
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r_Report_Load,
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r_StateReport, // *IS* a status report (follow-up or unprompted)
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};
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static constexpr uint8_t id = dev_CD_CHANGER;
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void init();
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void handle(const Frame *in, Frame *out);
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void react(Frame *out, detail::Error::Send err);
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void enable(Frame *out);
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void disable(Frame *out);
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static bool pending();
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static void resolvepending();
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void emit(Frame *out);
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void incrementTime();
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bool isPlaying() const;
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private:
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void startPlaying();
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void stopPlaying();
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void serialize(uint8_t *dst) const;
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void setTime(uint8_t mins, uint8_t secs);
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void generateStatus(Frame *status, bool is_unicast, devices to) const;
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void normalizeState();
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bool playing = false;
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int failedStatusReports = 0;
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uint8_t cds = CD1;
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uint8_t state = SEEKING | SEEKING_TRACK;
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uint8_t disc = 1;
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uint8_t track = 1; // Decimal storage; serialize to BCD
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uint8_t mins = 0xFF; // Decimal storage; serialize to BCD
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uint8_t secs = 0x7F; // Decimal storage; serialize to BCD
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uint8_t flags = 0;
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uint8_t flags2 = 0xC0;
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};
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} // namespace avclan
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