mirror of
https://github.com/akuker/RASCSI.git
synced 2024-08-01 10:29:27 +00:00
119dd55ef0
* Removed static/global variable * No need for ControllerManager as a singleton * Updated factory handling * Replaced loops * Added const * Added translations, fixed TODO, simplified operation creation * Fixed SonarCloud warnings * Replaced void * by BYTE * * Added explicit mode_page_datetime struct * Unit test updates * Use enum classes * Upddated file size check * Use C++ output formatting * Removed unused code * Use array for garbage buffer * Fixed data returned by READ CAPACITY(10) * For mode pages: Replaced BYTE by std::byte * Use std::byte for INQUIRY * Use std::byte for REQUEST SENSE * Replaced C array by vector * Replaced C style array * Replaced BYTE by std::byte * Replaced DWORD * Use more byte arreys * Updated CTapDriver initialization/deletion * Made status uint32_t instead of DWORD * Replaced command byte array by vector * Updated error handling * Removed obsolete casts * Improved locality of code * rw_command has become obsolete * Dynamically allocate command byte buffer * Simplified receiving commands * Use references * Type safety update, dispatcher update * Removed macros, replaced BOOL/FALSE/TRUE
121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI Reloaded
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// for Raspberry Pi
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//
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// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
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// Copyright (C) 2014-2020 GIMONS
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// Copyright (C) akuker
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//
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// Licensed under the BSD 3-Clause License.
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// See LICENSE file in the project root folder.
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//
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// [ SCSI device controller ]
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include "abstract_controller.h"
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#include "os.h"
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#include "scsi.h"
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class PrimaryDevice;
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class ScsiController : public AbstractController
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{
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// For timing adjustments
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static const unsigned int MIN_EXEC_TIME = 50;
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// Transfer period factor (limited to 50 x 4 = 200ns)
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static const int MAX_SYNC_PERIOD = 50;
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// REQ/ACK offset(limited to 16)
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static const BYTE MAX_SYNC_OFFSET = 16;
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static const int UNKNOWN_INITIATOR_ID = -1;
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const int DEFAULT_BUFFER_SIZE = 0x1000;
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using scsi_t = struct _scsi_t {
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// Synchronous transfer
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bool syncenable; // Synchronous transfer possible
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BYTE syncperiod = MAX_SYNC_PERIOD; // Synchronous transfer period
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BYTE syncoffset; // Synchronous transfer offset
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int syncack; // Number of synchronous transfer ACKs
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// ATN message
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bool atnmsg;
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int msc;
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BYTE msb[256];
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};
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public:
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ScsiController(shared_ptr<BUS>, int);
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~ScsiController() override;
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ScsiController(ScsiController&) = delete;
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ScsiController& operator=(const ScsiController&) = delete;
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void Reset() override;
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BUS::phase_t Process(int) override;
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int GetEffectiveLun() const override;
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int GetMaxLuns() const override { return LUN_MAX; }
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void Error(scsi_defs::sense_key sense_key, scsi_defs::asc asc = scsi_defs::asc::NO_ADDITIONAL_SENSE_INFORMATION,
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scsi_defs::status status = scsi_defs::status::CHECK_CONDITION) override;
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int GetInitiatorId() const override { return initiator_id; }
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void SetByteTransfer(bool b) override { is_byte_transfer = b; }
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void Status() override;
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void DataIn() override;
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void DataOut() override;
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private:
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// Execution start time
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uint32_t execstart = 0;
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// The initiator ID may be unavailable, e.g. with Atari ACSI and old host adapters
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int initiator_id = UNKNOWN_INITIATOR_ID;
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// The LUN from the IDENTIFY message
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int identified_lun = -1;
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bool is_byte_transfer = false;
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uint32_t bytes_to_transfer = 0;
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// Phases
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void SetPhase(BUS::phase_t p) override { ctrl.phase = p; }
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void BusFree() override;
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void Selection() override;
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void Command() override;
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void MsgIn() override;
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void MsgOut() override;
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// Data transfer
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void Send();
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bool XferMsg(int);
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bool XferIn(BYTE* buf);
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bool XferOut(bool);
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bool XferOutBlockOriented(bool);
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void ReceiveBytes();
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void Execute();
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void FlushUnit();
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void Receive();
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void ScheduleShutdown(rascsi_shutdown_mode mode) override { shutdown_mode = mode; }
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void Sleep();
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scsi_t scsi = {};
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AbstractController::rascsi_shutdown_mode shutdown_mode = AbstractController::rascsi_shutdown_mode::NONE;
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};
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