mirror of
https://github.com/thewesker/RASCSI.git
synced 2025-12-22 13:21:17 -05:00
103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI (*^..^*)
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// for Raspberry Pi
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//
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// Copyright (C) 2020 akuker
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// Copyright (C) 2014-2020 GIMONS
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// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
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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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// [ Emulation of the Nuvolink SC SCSI Ethernet interface ]
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//
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// This is based upon the fantastic documentation from Saybur on Gibhub
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// for the scuznet device. He did most of the hard work of reverse
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// engineering the protocol, documented here:
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// https://github.com/saybur/scuznet/blob/master/PROTOCOL.md
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//
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// This does NOT include the file system functionality that is present
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// in the Sharp X68000 host bridge.
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//
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// Note: This requires a the Nuvolink SC driver
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//---------------------------------------------------------------------------
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#pragma once
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#include "xm6.h"
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#include "os.h"
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#include "disk.h"
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#include "ctapdriver.h"
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//===========================================================================
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//
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// SCSI Nuvolink SC
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//
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//===========================================================================
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class SCSINuvolink : public Disk
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{
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public:
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// Basic Functions
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SCSINuvolink();
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// Constructor
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virtual ~SCSINuvolink();
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// Destructor
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// commands
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int FASTCALL Inquiry(const DWORD *cdb, BYTE *buf, DWORD major, DWORD minor);
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// INQUIRY command
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BOOL FASTCALL TestUnitReady(const DWORD *cdb);
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// TEST UNIT READY command
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int FASTCALL GetMessage10(const DWORD *cdb, BYTE *buf);
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// GET MESSAGE10 command
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BOOL FASTCALL SendMessage10(const DWORD *cdb, BYTE *buf);
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// SEND MESSAGE10 command
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private:
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enum nuvolink_command_enum : BYTE {
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cmmd_tstrdy = 0x00, // Test Unit Ready
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cmmd_ethrst = 0x02, // Reset Statistics (Vendor Specific)
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cmmd_rqsens = 0x03, // Request Sense
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cmmd_ethwrt = 0x05, // Send Package (Vendor Specific)
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cmmd_addr = 0x06, // Change MAC address (Vendor Specific)
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cmmd_getmsg = 0x08, // Get Message
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cmmd_mcast = 0x09, // Set Multicast Registers
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cmmd_sndmsg = 0x0A, // Send Message
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cmmd_mdsens = 0x0C, // Unknown Vendor Specific Command?
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cmmd_inq = 0x12, // Inquiry
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cmmd_rdiag = 0x1C, // Receive Diagnostic Results
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cmmd_sdiag = 0x1D, // Send Diagnostic
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};
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static const char* m_vendor_name;
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static const char* m_device_name;
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static const char* m_revision;
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#if defined(RASCSI) && !defined(BAREMETAL)
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int FASTCALL GetMacAddr(BYTE *buf);
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// Get MAC address
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void FASTCALL SetMacAddr(BYTE *buf);
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// Set MAC address
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void FASTCALL ReceivePacket();
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// Receive a packet
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void FASTCALL GetPacketBuf(BYTE *buf);
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// Get a packet
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void FASTCALL SendPacket(BYTE *buf, int len);
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// Send a packet
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CTapDriver *tap;
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// TAP driver
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BOOL m_bTapEnable;
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// TAP valid flag
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BYTE mac_addr[6];
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// MAC Addres
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int packet_len;
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// Receive packet size
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BYTE packet_buf[0x1000];
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// Receive packet buffer
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BOOL packet_enable;
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// Received packet valid
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#endif // RASCSI && !BAREMETAL
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};
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