mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
5.2 KiB
135 lines
5.2 KiB
/**
|
|
Copyright(c) Maynard Electronics, Inc. 1984-89
|
|
|
|
|
|
Name: drive.h
|
|
|
|
Date Updated: $./FDT$ $./FTM$
|
|
|
|
Description: This contains the internal drive definition structure. This
|
|
is a superset of the THW structure that is used by the
|
|
upper layers.
|
|
|
|
|
|
$Log: G:/LOGFILES/DRIVE.H_V $
|
|
*
|
|
* Rev 1.11 17 Mar 1993 14:57:34 GREGG
|
|
* This is Terri Lynn. Added Gregg's changes to switch a tape drive's block mode
|
|
* to match the block size of the current tape
|
|
*
|
|
* Rev 1.10 09 Nov 1992 10:49:14 GREGG
|
|
* Added macro for checking Fast EOD drive feature.
|
|
*
|
|
* Rev 1.9 05 Apr 1992 19:15:46 GREGG
|
|
* Added macro to check for TDI_REV_FMK drive feature.
|
|
*
|
|
* Rev 1.8 08 Feb 1992 14:37:06 GREGG
|
|
* Changed INT16 lst_oper element in drive structure to BOOLEAN force_rewind,
|
|
* since this is what the lst_oper field had been reduced to anyway.
|
|
*
|
|
* Rev 1.7 17 Oct 1991 01:17:02 GREGG
|
|
* BIGWHEEL - 8200SX - Added support macros.
|
|
*
|
|
* Rev 1.6 14 Oct 1991 10:58:14 GREGG
|
|
* Added TF_PollDrive state st_BSTAT (busy statusing).
|
|
*
|
|
* Rev 1.5 28 Sep 1991 21:45:24 GREGG
|
|
* Added two booleans to poll_stuff.
|
|
*
|
|
* Rev 1.4 09 Sep 1991 21:19:24 GREGG
|
|
* Added elements to drive structure for TF_PollDrive.
|
|
*
|
|
* Rev 1.3 15 Jul 1991 14:54:58 NED
|
|
* Removed unnecessary include.
|
|
*
|
|
* Rev 1.2 05 Jun 1991 19:15:48 NED
|
|
* changed include list
|
|
*
|
|
* Rev 1.1 10 May 1991 17:09:54 GREGG
|
|
* Ned's new stuff.
|
|
|
|
Rev 1.0 10 May 1991 10:13:04 GREGG
|
|
Initial revision.
|
|
|
|
**/
|
|
#ifndef _DRIVE_STUFF
|
|
#define _DRIVE_STUFF
|
|
|
|
#include "thw.h"
|
|
#include "dblks.h"
|
|
#include "tloc.h"
|
|
#include "buffman.h"
|
|
#include "tflstats.h"
|
|
/* $end$ include list */
|
|
|
|
typedef struct {
|
|
VOID_PTR channel ;
|
|
INT16 state ;
|
|
BOOLEAN no_tape_reported ;
|
|
BOOLEAN reentered ;
|
|
BOOLEAN first_status ;
|
|
INT blk_size_idx ;
|
|
UINT16 def_blk_size ;
|
|
} POLL_STUFF ;
|
|
|
|
|
|
typedef struct {
|
|
THW thw_inf ; /* Tape Hardware Structure */
|
|
Q_HEADER inproc_q ; /* Buffers that have been sent to the drive */
|
|
BOOLEAN trans_started ;/* Transfer was started */
|
|
BOOLEAN vcb_valid ; /* Is the DBLK VCB below valid */
|
|
BOOLEAN tape_mounted ; /* Is the tape mounted */
|
|
DBLK cur_vcb ; /* Current VCB */
|
|
BUF_PTR hold_buff ; /* For watches */
|
|
UINT32 pos_inf ; /* current tape position */
|
|
TLOC cur_pos ; /* Current Tape Location */
|
|
INT16 drv_hdl ; /* Drive handle ( TFL's ) */
|
|
UINT16 drv_no ; /* Drive Number ( TFL's ) */
|
|
BOOLEAN force_rewind ; /* force rewind of current tape */
|
|
TF_STATS cur_stats ; /* Current Statistics */
|
|
UINT16 last_cur_fmt ; /* save index into Current format (r/w) */
|
|
VOID_PTR last_fmt_env ; /* save Current Environment Pointer for Channel */
|
|
POLL_STUFF poll_stuff ; /* stuff for TF_PollDrive */
|
|
} DRIVE, *DRIVE_PTR ;
|
|
|
|
/* Position Stuff */
|
|
#define SupportBlkPos( x ) ( (x)->thw_inf.drv_info.drv_features & TDI_FAST_NBLK )
|
|
#define SupportRevFmk( x ) ( (x)->thw_inf.drv_info.drv_features & TDI_REV_FMK )
|
|
#define SupportFastEOD( x ) ( (x)->thw_inf.drv_info.drv_features & TDI_FAST_EOD )
|
|
#define SupportSXShowBlk( x ) ( (x)->thw_inf.drv_info.drv_features & TDI_SHOW_BLK )
|
|
#define SupportSXFindBlk( x ) ( (x)->thw_inf.drv_info.drv_features & TDI_FIND_BLK )
|
|
#define CurPBAofVCB( x ) ( (x)->cur_pos.pba_vcb )
|
|
#define DriveAttributes( x ) ( (x)->thw_inf.drv_info.drv_features )
|
|
|
|
/* State Definitions for TF_PollDrive */
|
|
/* Note: These are listed here because they are referenced in MountTape */
|
|
|
|
#define st_SSDC 0 /* Same Status, Different Call */
|
|
#define st_BSTAT 1 /* Busy STATusing */
|
|
#define st_BMNT 2 /* Busy MouNTing */
|
|
#define st_BREW 3 /* Busy REWinding */
|
|
#define st_BREAD 4 /* Busy READing */
|
|
#define st_HOSED 5 /* Guess */
|
|
#define st_CLOSED 6 /* Drive not being polled */
|
|
|
|
/* Current Position Information */
|
|
#define AT_EOD 0x00000001 /* At End of Data */
|
|
#define AT_EOS 0x00000002 /* At End of A Set */
|
|
#define AT_EOM 0x00000004 /* At End of Media */
|
|
#define AT_BOT 0x00000008 /* Beginning of Tape */
|
|
#define AT_FMK 0x00000010 /* At A FileMark */
|
|
#define NO_STAT 0x00000020 /* Don't Status this drive */
|
|
#define REW_CLOSE 0x00000040 /* Rewind on Close */
|
|
#define DONT_CLOSE 0x00000080 /* Don't Close this drive */
|
|
#define AT_MOS 0x00000100 /* In the Middle of Set */
|
|
#define TAPE_FULL 0x00000200 /* The current tape in the drive is full */
|
|
#define WATCHED 0x00000400 /* The driver was watched */
|
|
#define TAPE_ERR 0x00000800 /* There was an error on this tape */
|
|
#define SHORT_SET 0x00001000 /* This Set occupies Less than a buffer */
|
|
|
|
/* Usage Macros */
|
|
#define SetPosBit( x, b ) ( (x)->pos_inf |= (b) )
|
|
#define ClrPosBit( x, b ) ( (x)->pos_inf &= ~(b) )
|
|
#define IsPosBitSet( x, b ) ( (x)->pos_inf & (b) )
|
|
|
|
#endif
|