/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _AHA1740_H
/* $Id$
*
* Header file for the adaptec 1740 driver for Linux
*
* With minor revisions 3/31/93
* Written and (C) 1992,1993 Brad McLean. See aha1740.c
* for more info
*
*/
#include <linux/types.h>
#define SLOTSIZE 0x5c
/* EISA configuration registers & values */
#define HID0(base) (base + 0x0)
#define HID1(base) (base + 0x1)
#define HID2(base) (base + 0x2)
#define HID3(base) (base + 0x3)
#define EBCNTRL(base) (base + 0x4)
#define PORTADR(base) (base + 0x40)
#define BIOSADR(base) (base + 0x41)
#define INTDEF(base) (base + 0x42)
#define SCSIDEF(base) (base + 0x43)
#define BUSDEF(base) (base + 0x44)
#define RESV0(base) (base + 0x45)
#define RESV1(base) (base + 0x46)
#define RESV2(base) (base + 0x47)
#define HID_MFG "ADP"
#define HID_PRD 0
#define HID_REV 2
#define EBCNTRL_VALUE 1
#define PORTADDR_ENH 0x80
/* READ */
#define G2INTST(base) (base + 0x56)
#define G2STAT(base) (base + 0x57)
#define MBOXIN0(base) (base + 0x58)
#define MBOXIN1(base) (base + 0x59)
#define MBOXIN2(base) (base + 0x5a)
#define MBOXIN3(base) (base + 0x5b)
#define G2STAT2(base) (base + 0x5c)
#define G2INTST_MASK 0xf0 /* isolate the status */
#define G2INTST_CCBGOOD 0x10 /* CCB Completed */
#define G2INTST_CCBRETRY 0x50 /* CCB Completed with a retry */
#define G2INTST_HARDFAIL 0x70 /* Adapter Hardware Failure */
#define G2INTST_CMDGOOD 0xa0 /* Immediate command success */
#define G2INTST_CCBERROR 0xc0 /* CCB Completed with error */
#define G2INTST_ASNEVENT 0xd0 /* Asynchronous Event Notification */
#define G2INTST_CMDERROR 0xe0 /* Immediate command error */
#define G2STAT_MBXOUT 4 /* Mailbox Out Empty Bit */
#define G2STAT_INTPEND 2 /* Interrupt Pending Bit */
#define G2STAT_BUSY 1 /* Busy Bit (attention pending) */
#define G2STAT2_READY 0 /* Host Ready Bit */
/* WRITE (and ReadBack) */
#define MBOXOUT0(base) (base + 0x50)
#define MBOXOUT1(base) (base + 0x51)
#define MBOXOUT2(base) (base + 0x52)
#define MBOXOUT3(base) (base + 0x53)
#define ATTN(base) (base + 0x54)
#define G2CNTRL(base) (base + 0x55)
#define ATTN_IMMED 0x10 /* Immediate Command */
#define ATTN_START 0x40 /* Start CCB */
#define ATTN_ABORT 0x50 /* Abort CCB */
#define G2CNTRL_HRST 0x80 /* Hard Reset */
#define G2CNTRL_IRST 0x40 /* Clear EISA Interrupt */
#define G2CNTRL_HRDY 0x20 /* Sets HOST ready */
/* This is used with scatter-gather */
struct aha1740_chain {
u32 dataptr; /* Location of data */
u32 datalen; /* Size of this part of chain */
};
/* These belong in scsi.h */
#define any2scsi(up, p) \
(up)[0] = (((unsigned long)(p)) >> 16) ; \
(up)[1] = (((unsigned long)(p)) >> 8); \
(up)[2] = ((unsigned long)(p));
#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
#define MAX_STATUS 32
struct ecb { /* Enhanced Control Block 6.1 */
u16 cmdw; /* Command Word */
/* Flag Word 1 */
u16 cne:1, /* Control Block Chaining */
:6, di:1, /* Disable Interrupt */
:2, ses:1, /* Suppress Underrun error */
:1, sg:1, /* Scatter/Gather */
:1, dsb:1, /* Disable Status Block */
ars:1; /* Automatic Request Sense */
/* Flag Word 2 */
u16 lun:3, /* Logical Unit */
tag:1, /* Tagged Queuing */
tt:2, /* Tag Type */
nd:1, /* No Disconnect */
:1, dat:1, /* Data transfer - check direction */
dir:1, /* Direction of transfer 1 = datain */
st:1, /* Suppress Transfer */
chk:1, /* Calculate Checksum */
:2, rec:1,:1; /* Error Recovery */
u16 nil0; /* nothing */
u32 dataptr; /* Data or Scatter List ptr */
u32 datalen; /* Data or Scatter List len */
u32 statusptr; /* Status Block ptr */
u32 linkptr; /* Chain Address */
u32 nil1; /* nothing */
u32 senseptr; /* Sense Info Pointer */
u8 senselen; /* Sense Length */
u8 cdblen; /* CDB Length */
u16 datacheck; /* Data checksum */
u8 cdb[MAX_CDB]; /* CDB area */
/* Hardware defined portion ends here, rest is driver defined */
u8 sense[MAX_SENSE]; /* Sense area */
u8 status[MAX_STATUS]; /* Status area */
struct scsi_cmnd *SCpnt; /* Link to the SCSI Command Block */
void (*done) (struct scsi_cmnd *); /* Completion Function */
};
#define AHA1740CMD_NOP 0x00 /* No OP */
#define AHA1740CMD_INIT 0x01 /* Initiator SCSI Command */
#define AHA1740CMD_DIAG 0x05 /* Run Diagnostic Command */
#define AHA1740CMD_SCSI 0x06 /* Initialize SCSI */
#define AHA1740CMD_SENSE 0x08 /* Read Sense Information */
#define AHA1740CMD_DOWN 0x09 /* Download Firmware (yeah, I bet!) */
#define AHA1740CMD_RINQ 0x0a /* Read Host Adapter Inquiry Data */
#define AHA1740CMD_TARG 0x10 /* Target SCSI Command */
#define AHA1740_ECBS 32
#define AHA1740_SCATTER 16
#endif
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