mirror of
https://github.com/LIV2/lide.device.git
synced 2025-12-06 00:32:45 +00:00
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* This file is part of lide.device
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* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
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*/
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#ifndef _DEVICE_H
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#define _DEVICE_H
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#include <dos/filehandler.h>
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#include <exec/semaphores.h>
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#include <stdbool.h>
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#define OAHR_MANUF_ID 5194
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#define BSC_MANUF_ID 2092
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#define A1K_MANUF_ID 2588
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#define RIPPLE_PROD_ID 7
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#define MAX_UNITS 4
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// VSCode C/C++ extension doesn't like the asm("<reg>") syntax
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#ifdef __INTELLISENSE__
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#define asm(x)
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#endif
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enum xfer {
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longword_movem,
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longword_move
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};
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/**
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* Drive struct
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*
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*/
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struct Drive {
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volatile UWORD *data;
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volatile UBYTE *error_features;
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volatile UBYTE *sectorCount;
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volatile UBYTE *lbaLow;
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volatile UBYTE *lbaMid;
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volatile UBYTE *lbaHigh;
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volatile UBYTE *devHead;
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volatile UBYTE *status_command;
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};
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struct IDEUnit {
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struct MinNode mn_Node;
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struct Unit io_unit;
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struct ConfigDev *cd;
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struct ExecBase *SysBase;
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struct IDETask *itask;
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struct Drive drive;
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BYTE (*write_taskfile)(struct IDEUnit *, UBYTE, ULONG, UBYTE, UBYTE);
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enum xfer xferMethod;
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void (*read_fast)(void * asm("a0"), void * asm("a1"));
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void (*write_fast)(void * asm("a0"), void * asm("a1"));
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void (*read_unaligned)(void * asm("a0"), void * asm("a1"));
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void (*write_unaligned)(void * asm("a0"), void * asm("a1"));
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volatile UBYTE *shadowDevHead;
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volatile void *changeInt;
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volatile bool deferTUR;
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UBYTE unitNum;
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UBYTE channel;
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UBYTE deviceType;
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UBYTE last_error[6];
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bool primary;
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bool present;
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bool atapi;
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bool mediumPresent;
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bool mediumPresentPrev;
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bool xferMultiple;
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bool lba;
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bool lba48;
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UWORD openCount;
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UWORD changeCount;
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UWORD heads;
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UWORD sectorsPerTrack;
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UWORD blockSize;
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UWORD blockShift;
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ULONG cylinders;
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ULONG logicalSectors;
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struct MinList changeInts;
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UBYTE multipleCount;
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};
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struct DeviceBase {
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struct Library lib;
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struct ExecBase *SysBase;
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struct Library *ExpansionBase;
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struct Task *ChangeTask;
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BPTR saved_seg_list;
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bool isOpen;
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ULONG numUnits;
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ULONG highestUnit;
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UBYTE numTasks;
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struct MinList units;
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struct SignalSemaphore ulSem;
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struct MinList ideTasks;
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volatile bool hasRemovables; // modified by IDETask(s), Start the diskChange task?
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};
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struct IDETask {
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struct MinNode mn_Node;
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struct Task *task;
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struct Task *parent;
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struct DeviceBase *dev;
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struct ConfigDev *cd;
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struct MsgPort *iomp;
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struct MsgPort *timermp;
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struct timerequest *tr;
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volatile bool active;
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UBYTE shadowDevHead;
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UBYTE boardNum;
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UBYTE taskNum;
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UBYTE channel;
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};
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#define STR(s) #s /* Turn s into a string literal without expanding macro definitions (however, \
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if invoked from a macro, macro arguments are expanded). */
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#define XSTR(s) STR(s) /* Turn s into a string literal after macro-expanding it. */
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#ifndef LIDE_IS_SCSI
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#define DEVICE_NAME "lide.device"
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#else
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#define DEVICE_NAME "scsi.device"
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#endif
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#define DEVICE_ID_STRING "lide " XSTR(DEVICE_VERSION) "." XSTR(DEVICE_REVISION) " (" XSTR(BUILD_DATE) ") " XSTR(GIT_REF)
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// The build process will define the version/revision based on the latest git tag
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#ifndef DEVICE_VERSION
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#define DEVICE_VERSION 40
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#define DEVICE_REVISION 0
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#endif
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#define DEVICE_PRIORITY 10
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#endif
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