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/* AM53/79C974 (PCscsi) driver release 0.5
*
* The architecture and much of the code of this device
* driver was originally developed by Drew Eckhardt for
* the NCR5380. The following copyrights apply:
* For the architecture and all parts similar to the NCR5380:
* Copyright 1993, Drew Eckhardt
* Visionary Computing
* (Unix and Linux consulting and custom programming)
* drew@colorado.edu
* +1 (303) 666-5836
*
* The AM53C974_nobios_detect code was originally developed by
* Robin Cutshaw (robin@xfree86.org) and is used here in a
* modified form.
*
* For the other parts:
* Copyright 1994, D. Frieauff
* EMail: fri@rsx42sun0.dofn.de
* Phone: x49-7545-8-2256 , x49-7541-42305
*/
/*
* $Log: AM53C974.h,v $
*/
#ifndef AM53C974_H
#define AM53C974_H
#include <scsi/scsicam.h>
struct AM53C974_hostdata {
volatile unsigned in_reset:1; /* flag, says bus reset pending */
volatile unsigned aborted:1; /* flag, says aborted */
volatile unsigned selecting:1; /* selection started, but not yet finished */
volatile unsigned disconnecting: 1; /* disconnection started, but not yet finished */
volatile unsigned dma_busy:1; /* dma busy when service request for info transfer received */
volatile unsigned char msgout[10]; /* message to output in MSGOUT_PHASE */
volatile unsigned char last_message[10]; /* last message OUT */
volatile Scsi_Cmnd *issue_queue; /* waiting to be issued */
volatile Scsi_Cmnd *disconnected_queue; /* waiting for reconnect */
volatile Scsi_Cmnd *sel_cmd; /* command for selection */
volatile Scsi_Cmnd *connected; /* currently connected command */
volatile unsigned char busy[8]; /* index = target, bit = lun */
unsigned char sync_per[8]; /* synchronous transfer period (in effect) */
unsigned char sync_off[8]; /* synchronous offset (in effect) */
unsigned char sync_neg[8]; /* sync. negotiation performed (in effect) */
unsigned char sync_en[8]; /* sync. negotiation performed (in effect) */
unsigned char max_rate[8]; /* max. transfer rate (setup) */
unsigned char max_offset[8]; /* max. sync. offset (setup), only valid if corresponding sync_en is nonzero */
};
extern struct proc_dir_entry proc_scsi_am53c974;
#define AM53C974 { \
NULL, /* pointer to next in list */ \
NULL, /* struct module *module */ \
&proc_scsi_am53c974, /* struct proc_dir_entry *proc_dir */ \
NULL, /* int (*proc_info)(char *, char **, off_t, int, int, int); */ \
"AM53C974", /* name */ \
AM53C974_detect, /* int (* detect)(struct SHT *) */ \
AM53C974_release, /* int (*release)(struct Scsi_Host *) */ \
AM53C974_info, /* const char *(* info)(struct Scsi_Host *) */ \
AM53C974_command, /* int (* command)(Scsi_Cmnd *) */ \
AM53C974_queue_command, /* int (* queuecommand)(Scsi_Cmnd *, \
void (*done)(Scsi_Cmnd *)) */ \
AM53C974_abort, /* int (* abort)(Scsi_Cmnd *) */ \
AM53C974_reset, /* int (* reset)(Scsi_Cmnd *) */ \
NULL, /* int (* slave_attach)(int, int) */ \
scsicam_bios_param, /* int (* bios_param)(Disk *, int, int[]) */ \
12, /* can_queue */ \
-1, /* this_id */ \
SG_ALL, /* sg_tablesize */ \
1, /* cmd_per_lun */ \
0, /* present, i.e. how many adapters of this kind */ \
0, /* unchecked_isa_dma */ \
DISABLE_CLUSTERING /* use_clustering */ \
}
void AM53C974_setup(char *str, int *ints);
int AM53C974_detect(Scsi_Host_Template *tpnt);
int AM53C974_release(struct Scsi_Host *shp);
int AM53C974_biosparm(Disk *disk, int dev, int *info_array);
const char *AM53C974_info(struct Scsi_Host *);
int AM53C974_command(Scsi_Cmnd *SCpnt);
int AM53C974_queue_command(Scsi_Cmnd *cmd, void (*done)(Scsi_Cmnd *));
int AM53C974_abort(Scsi_Cmnd *cmd);
int AM53C974_reset (Scsi_Cmnd *cmd);
#endif /* AM53C974_H */
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