bb7686bc5d
problems with respect to multiple tar files on one tape. Now uses malloc of data structures to reduce static kernel size.
126 lines
4.4 KiB
C
126 lines
4.4 KiB
C
/*
|
|
* Written by Julian Elischer (julian@tfs.com)
|
|
* for TRW Financial Systems for use under the MACH(2.5) operating system.
|
|
*
|
|
* TRW Financial Systems, in accordance with their agreement with Carnegie
|
|
* Mellon University, makes this software available to CMU to distribute
|
|
* or use in any manner that they see fit as long as this message is kept with
|
|
* the software. For this reason TFS also grants any other persons or
|
|
* organisations permission to use or modify this software.
|
|
*
|
|
* TFS supplies this software to be publicly redistributed
|
|
* on the understanding that TFS is not responsible for the correct
|
|
* functioning of this software in any circumstances.
|
|
*
|
|
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
|
|
*
|
|
* $Id: scsiconf.h,v 1.3 93/08/26 21:09:43 julian Exp Locker: julian $
|
|
*/
|
|
|
|
/***********************************************\
|
|
* these calls are called by the high-end *
|
|
* drivers to get services from whatever low-end *
|
|
* drivers they are attached to *
|
|
\***********************************************/
|
|
struct scsi_switch
|
|
{
|
|
int (*scsi_cmd)();
|
|
void (*scsi_minphys)();
|
|
int (*open_target_lu)();
|
|
int (*close_target_lu)();
|
|
long int (*adapter_info)(); /* see definitions below */
|
|
char *name; /* name of scsi bus controller */
|
|
u_long spare[2];
|
|
};
|
|
#define AD_INF_MAX_CMDS 0x000000FF /* maximum number of entries
|
|
queuable to a device by
|
|
the adapter */
|
|
/* 24 bits of other adapter characteristics go here */
|
|
|
|
/***********************************************\
|
|
* The scsi debug control bits *
|
|
\***********************************************/
|
|
extern int scsi_debug;
|
|
#define PRINTROUTINES 0x01
|
|
#define TRACEOPENS 0x02
|
|
#define TRACEINTERRUPTS 0x04
|
|
#define SHOWREQUESTS 0x08
|
|
#define SHOWSCATGATH 0x10
|
|
#define SHOWINQUIRY 0x20
|
|
#define SHOWCOMMANDS 0x40
|
|
|
|
|
|
/********************************/
|
|
/* return values for scsi_cmd() */
|
|
/********************************/
|
|
#define SUCCESSFULLY_QUEUED 0
|
|
#define TRY_AGAIN_LATER 1
|
|
#define COMPLETE 2
|
|
#define HAD_ERROR 3
|
|
#define ESCAPE_NOT_SUPPORTED 4
|
|
|
|
struct scsi_xfer
|
|
{
|
|
struct scsi_xfer *next; /* when free */
|
|
int flags;
|
|
u_char adapter;
|
|
u_char targ;
|
|
u_char lu;
|
|
u_char retries; /* the number of times to retry */
|
|
long int timeout; /* in miliseconds */
|
|
struct scsi_generic *cmd;
|
|
int cmdlen;
|
|
u_char *data; /* either the dma address OR a uio address */
|
|
int datalen; /* data len (blank if uio) */
|
|
int resid;
|
|
int (*when_done)();
|
|
int done_arg;
|
|
int done_arg2;
|
|
int error;
|
|
struct buf *bp;
|
|
struct scsi_sense_data sense;
|
|
|
|
/* Believe it or not, Some targets fall on the ground with
|
|
* anything but a certain sense length.
|
|
*/
|
|
int req_sense_length; /* Explicit request sense length */
|
|
|
|
int status; /* SCSI status */
|
|
};
|
|
/********************************/
|
|
/* Flag values */
|
|
/********************************/
|
|
#define SCSI_NOSLEEP 0x01 /* Not a user... don't sleep */
|
|
#define SCSI_NOMASK 0x02 /* dont allow interrupts.. booting */
|
|
#define SCSI_NOSTART 0x04 /* left over from ancient history */
|
|
#define ITSDONE 0x10 /* the transfer is as done as it gets */
|
|
#define INUSE 0x20 /* The scsi_xfer block is in use */
|
|
#define SCSI_SILENT 0x40 /* Don't report errors to console */
|
|
#define SCSI_ERR_OK 0x80 /* An error on this operation is OK. */
|
|
#define SCSI_RESET 0x100 /* Reset the device in question */
|
|
#define SCSI_DATA_UIO 0x200 /* The data address refers to a UIO */
|
|
#define SCSI_DATA_IN 0x400 /* expect data to come INTO memory */
|
|
#define SCSI_DATA_OUT 0x800 /* expect data to flow OUT of memory */
|
|
#define SCSI_TARGET 0x1000 /* This defines a TARGET mode op. */
|
|
#define SCSI_ESCAPE 0x2000 /* Escape operation */
|
|
|
|
/*************************************************************************/
|
|
/* Escape op codes. This provides an extensible setup for operations */
|
|
/* that are not scsi commands. They are intended for modal operations. */
|
|
/*************************************************************************/
|
|
|
|
#define SCSI_OP_TARGET 0x0001
|
|
#define SCSI_OP_RESET 0x0002
|
|
#define SCSI_OP_BDINFO 0x0003
|
|
|
|
/********************************/
|
|
/* Error values */
|
|
/********************************/
|
|
#define XS_NOERROR 0x0 /* there is no error, (sense is invalid) */
|
|
#define XS_SENSE 0x1 /* Check the returned sense for the error */
|
|
#define XS_DRIVER_STUFFUP 0x2 /* Driver failed to perform operation */
|
|
#define XS_TIMEOUT 0x03 /* The device timed out.. turned off? */
|
|
#define XS_SWTIMEOUT 0x04 /* The Timeout reported was caught by SW */
|
|
#define XS_BUSY 0x08 /* The device busy, try again later? */
|
|
|