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Diffstat (limited to 'drivers/scsi/aha1740.h')
| -rw-r--r-- | drivers/scsi/aha1740.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/scsi/aha1740.h b/drivers/scsi/aha1740.h new file mode 100644 index 0000000000..6eeed6da0b --- /dev/null +++ b/drivers/scsi/aha1740.h @@ -0,0 +1,154 @@ +/* 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 |