aha1542.h
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#ifndef _AHA1542_H
/* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
*
* Header file for the adaptec 1542 driver for Linux
*
* $Log: aha1542.h,v $
* Revision 1.1 1992/07/24 06:27:38 root
* Initial revision
*
* Revision 1.2 1992/07/04 18:41:49 root
* Replaced distribution with current drivers
*
* Revision 1.3 1992/06/23 23:58:20 root
* Fixes.
*
* Revision 1.2 1992/05/26 22:13:23 root
* Changed bug that prevented DMA above first 2 mbytes.
*
* Revision 1.1 1992/05/22 21:00:29 root
* Initial revision
*
* Revision 1.1 1992/04/24 18:01:50 root
* Initial revision
*
* Revision 1.1 1992/04/02 03:23:13 drew
* Initial revision
*
* Revision 1.3 1992/01/27 14:46:29 tthorn
* *** empty log message ***
*
*/
#include <linux/types.h>
/* I/O Port interface 4.2 */
/* READ */
#define STATUS(base) base
#define STST 0x80 /* Self Test in Progress */
#define DIAGF 0x40 /* Internal Diagnostic Failure */
#define INIT 0x20 /* Mailbox Initialization Required */
#define IDLE 0x10 /* SCSI Host Adapter Idle */
#define CDF 0x08 /* Command/Data Out Port Full */
#define DF 0x04 /* Data In Port Full */
#define INVDCMD 0x01 /* Invalid H A Command */
#define STATMASK 0xfd /* 0x02 is reserved */
#define INTRFLAGS(base) (STATUS(base)+2)
#define ANYINTR 0x80 /* Any Interrupt */
#define SCRD 0x08 /* SCSI Reset Detected */
#define HACC 0x04 /* HA Command Complete */
#define MBOA 0x02 /* MBO Empty */
#define MBIF 0x01 /* MBI Full */
#define INTRMASK 0x8f
/* WRITE */
#define CONTROL(base) STATUS(base)
#define HRST 0x80 /* Hard Reset */
#define SRST 0x40 /* Soft Reset */
#define IRST 0x20 /* Interrupt Reset */
#define SCRST 0x10 /* SCSI Bus Reset */
/* READ/WRITE */
#define DATA(base) (STATUS(base)+1)
#define CMD_NOP 0x00 /* No Operation */
#define CMD_MBINIT 0x01 /* Mailbox Initialization */
#define CMD_START_SCSI 0x02 /* Start SCSI Command */
#define CMD_INQUIRY 0x04 /* Adapter Inquiry */
#define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */
#define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */
#define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */
#define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */
#define CMD_RETDEVS 0x0a /* Return Installed Devices */
#define CMD_RETCONF 0x0b /* Return Configuration Data */
#define CMD_RETSETUP 0x0d /* Return Setup Data */
#define CMD_ECHO 0x1f /* ECHO Command Data */
#define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */
#define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */
/* Mailbox Definition 5.2.1 and 5.2.2 */
struct mailbox {
unchar status; /* Command/Status */
unchar ccbptr[3]; /* msb, .., lsb */
};
/* This is used with scatter-gather */
struct chain {
unchar datalen[3]; /* Size of this part of chain */
unchar dataptr[3]; /* Location of data */
};
/* These belong in scsi.h also */
static inline void any2scsi(u8 *p, u32 v)
{
p[0] = v >> 16;
p[1] = v >> 8;
p[2] = v;
}
#define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
#define xany2scsi(up, p) \
(up)[0] = ((long)(p)) >> 24; \
(up)[1] = ((long)(p)) >> 16; \
(up)[2] = ((long)(p)) >> 8; \
(up)[3] = ((long)(p));
#define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
+ (((long)(up)[2]) << 8) + ((long)(up)[3]) )
#define MAX_CDB 12
#define MAX_SENSE 14
struct ccb { /* Command Control Block 5.3 */
unchar op; /* Command Control Block Operation Code */
unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
/* Outbound data transfer, length is checked*/
/* Inbound data transfer, length is checked */
/* Logical Unit Number */
unchar cdblen; /* SCSI Command Length */
unchar rsalen; /* Request Sense Allocation Length/Disable */
unchar datalen[3]; /* Data Length (msb, .., lsb) */
unchar dataptr[3]; /* Data Pointer */
unchar linkptr[3]; /* Link Pointer */
unchar commlinkid; /* Command Linking Identifier */
unchar hastat; /* Host Adapter Status (HASTAT) */
unchar tarstat; /* Target Device Status */
unchar reserved[2];
unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
/* REQUEST SENSE */
};
static int aha1542_detect(struct scsi_host_template *);
static int aha1542_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
static int aha1542_bus_reset(Scsi_Cmnd * SCpnt);
static int aha1542_dev_reset(Scsi_Cmnd * SCpnt);
static int aha1542_host_reset(Scsi_Cmnd * SCpnt);
#if 0
static int aha1542_old_abort(Scsi_Cmnd * SCpnt);
static int aha1542_old_reset(Scsi_Cmnd *, unsigned int);
#endif
static int aha1542_biosparam(struct scsi_device *, struct block_device *,
sector_t, int *);
#define AHA1542_MAILBOXES 8
#define AHA1542_SCATTER 16
#define AHA1542_CMDLUN 1
#endif