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Autodocs Include classes clib datatypes devices audio.h / .i bootblock.h / .i cd.h / .i clipboard.h / .i console.h / .i conunit.h / .i gameport.h / .i hardblocks.h / .i input.h / .i inputevent.h / .i keyboard.h / .i keymap.h / .i narrator.h / .i parallel.h / .i printer.h / .i prtbase.h / .i prtgfx.h / .i scsidisk.h / .i serial.h / .i timer.h / .i trackdisk.h / .i diskfont dos exec gadgets graphics hardware images intuition libraries pragma pragmas prefs proto reaction resources rexx utility workbench GuruMeditation | #ifndef DEVICES_SCSIDISK_H #define DEVICES_SCSIDISK_H /* ** $VER: scsidisk.h 44.1 (17.04.1999) ** Includes Release 45.1 ** ** SCSI exec-level device command ** ** (C) Copyright 1988-2001 Amiga, Inc. ** All Rights Reserved ** ** (C) Copyright 1999 by Joanne Dow, Wizardess Designs, licensed to ** Amiga Inc. ** All Rights Reserved */ /* ** Changes: ** Added new numbering scheme for handling WIDE SCSI devices. ** Note that at this time only support for up to 16 IDs is ** contemplated in most designs although this numbering system ** can consider far far more. */ #ifndef EXEC_TYPES_H #include <exec/types.h> #endif /* EXEC_TYPES_H */ /*-------------------------------------------------------------------- * * SCSI Command * Several Amiga SCSI controller manufacturers are converging on * standard ways to talk to their controllers. This include * file describes an exec-device command (e.g. for hddisk.device) * that can be used to issue SCSI commands * * UNIT NUMBERS * Unit numbers to the OpenDevice call have encoded in them which * SCSI device is being referred to. The three decimal digits of * the unit number refer to the SCSI Target ID (bus address) in * the 1's digit, the SCSI logical unit (LUN) in the 10's digit, * and the controller board in the 100's digit. * * Examples: * 0 drive at address 0 * 12 LUN 1 on multiple drive controller at address 2 * 104 second controller board, address 4 * 88 not valid: both logical units and addresses * range from 0..7. * * CAVEATS * Original 2090 code did not support this command. * * Commodore 2090/2090A unit numbers are different. The SCSI * logical unit is the 100's digit, and the SCSI Target ID * is a permuted 1's digit: Target ID 0..6 maps to unit 3..9 * (7 is reserved for the controller). * * Examples: * 3 drive at address 0 * 109 drive at address 6, logical unit 1 * 1 not valid: this is not a SCSI unit. Perhaps * it's an ST506 unit. * * Some controller boards generate a unique name (e.g. 2090A's * iddisk.device) for the second controller board, instead of * implementing the 100's digit. * * With the advent of wide SCSI the scheme above fails miserably. * A new scheme was adopted by Phase V, who appear to be the only * source of wide SCSI for the Amiga at this time. Thus their * numbering system kludge is adopted here. When the ID or LUN is * above 7 the new numbering scheme is used. * * Unit = * Board * 10 * 1000 * 1000 + * LUN * 10 * 1000 + * ID * 10 + * HD_WIDESCSI; * * There are optional restrictions on the alignment, bus * accessability, and size of the data for the data phase. * Be conservative to work with all manufacturer's controllers. * *------------------------------------------------------------------*/ #define HD_WIDESCSI 8 /* Wide SCSI detection bit. */ #define HD_SCSICMD 28 /* issue a SCSI command to the unit */ /* io_Data points to a SCSICmd */ /* io_Length is sizeof(struct SCSICmd) */ /* io_Actual and io_Offset are not used */ struct SCSICmd { UWORD *scsi_Data; /* word aligned data for SCSI Data Phase */ /* (optional) data need not be byte aligned */ /* (optional) data need not be bus accessable */ ULONG scsi_Length; /* even length of Data area */ /* (optional) data can have odd length */ /* (optional) data length can be > 2**24 */ ULONG scsi_Actual; /* actual Data used */ UBYTE *scsi_Command; /* SCSI Command (same options as scsi_Data) */ UWORD scsi_CmdLength; /* length of Command */ UWORD scsi_CmdActual; /* actual Command used */ UBYTE scsi_Flags; /* includes intended data direction */ UBYTE scsi_Status; /* SCSI status of command */ UBYTE *scsi_SenseData; /* sense data: filled if SCSIF_[OLD]AUTOSENSE */ /* is set and scsi_Status has CHECK CONDITION */ /* (bit 1) set */ UWORD scsi_SenseLength; /* size of scsi_SenseData, also bytes to */ /* request w/ SCSIF_AUTOSENSE, must be 4..255 */ UWORD scsi_SenseActual; /* amount actually fetched (0 means no sense) */ }; /*----- scsi_Flags -----*/ #define SCSIF_WRITE 0 /* intended data direction is out */ #define SCSIF_READ 1 /* intended data direction is in */ #define SCSIB_READ_WRITE 0 /* (the bit to test) */ #define SCSIF_NOSENSE 0 /* no automatic request sense */ #define SCSIF_AUTOSENSE 2 /* do standard extended request sense */ /* on check condition */ #define SCSIF_OLDAUTOSENSE 6 /* do 4 byte non-extended request */ /* sense on check condition */ #define SCSIB_AUTOSENSE 1 /* (the bit to test) */ #define SCSIB_OLDAUTOSENSE 2 /* (the bit to test) */ /*----- SCSI io_Error values -----*/ #define HFERR_SelfUnit 40 /* cannot issue SCSI command to self */ #define HFERR_DMA 41 /* DMA error */ #define HFERR_Phase 42 /* illegal or unexpected SCSI phase */ #define HFERR_Parity 43 /* SCSI parity error */ #define HFERR_SelTimeout 44 /* Select timed out */ #define HFERR_BadStatus 45 /* status and/or sense error */ /*----- OpenDevice io_Error values -----*/ #define HFERR_NoBoard 50 /* Open failed for non-existant board */ #endif /* DEVICES_SCSIDISK_H */ Comments |
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