1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _AHA1740_H 3 4/* $Id$ 5 * 6 * Header file for the adaptec 1740 driver for Linux 7 * 8 * With minor revisions 3/31/93 9 * Written and (C) 1992,1993 Brad McLean. See aha1740.c 10 * for more info 11 * 12 */ 13 14#include <linux/types.h> 15 16#define SLOTSIZE 0x5c 17 18/* EISA configuration registers & values */ 19#define HID0(base) (base + 0x0) 20#define HID1(base) (base + 0x1) 21#define HID2(base) (base + 0x2) 22#define HID3(base) (base + 0x3) 23#define EBCNTRL(base) (base + 0x4) 24#define PORTADR(base) (base + 0x40) 25#define BIOSADR(base) (base + 0x41) 26#define INTDEF(base) (base + 0x42) 27#define SCSIDEF(base) (base + 0x43) 28#define BUSDEF(base) (base + 0x44) 29#define RESV0(base) (base + 0x45) 30#define RESV1(base) (base + 0x46) 31#define RESV2(base) (base + 0x47) 32 33#define HID_MFG "ADP" 34#define HID_PRD 0 35#define HID_REV 2 36#define EBCNTRL_VALUE 1 37#define PORTADDR_ENH 0x80 38/* READ */ 39#define G2INTST(base) (base + 0x56) 40#define G2STAT(base) (base + 0x57) 41#define MBOXIN0(base) (base + 0x58) 42#define MBOXIN1(base) (base + 0x59) 43#define MBOXIN2(base) (base + 0x5a) 44#define MBOXIN3(base) (base + 0x5b) 45#define G2STAT2(base) (base + 0x5c) 46 47#define G2INTST_MASK 0xf0 /* isolate the status */ 48#define G2INTST_CCBGOOD 0x10 /* CCB Completed */ 49#define G2INTST_CCBRETRY 0x50 /* CCB Completed with a retry */ 50#define G2INTST_HARDFAIL 0x70 /* Adapter Hardware Failure */ 51#define G2INTST_CMDGOOD 0xa0 /* Immediate command success */ 52#define G2INTST_CCBERROR 0xc0 /* CCB Completed with error */ 53#define G2INTST_ASNEVENT 0xd0 /* Asynchronous Event Notification */ 54#define G2INTST_CMDERROR 0xe0 /* Immediate command error */ 55 56#define G2STAT_MBXOUT 4 /* Mailbox Out Empty Bit */ 57#define G2STAT_INTPEND 2 /* Interrupt Pending Bit */ 58#define G2STAT_BUSY 1 /* Busy Bit (attention pending) */ 59 60#define G2STAT2_READY 0 /* Host Ready Bit */ 61 62/* WRITE (and ReadBack) */ 63#define MBOXOUT0(base) (base + 0x50) 64#define MBOXOUT1(base) (base + 0x51) 65#define MBOXOUT2(base) (base + 0x52) 66#define MBOXOUT3(base) (base + 0x53) 67#define ATTN(base) (base + 0x54) 68#define G2CNTRL(base) (base + 0x55) 69 70#define ATTN_IMMED 0x10 /* Immediate Command */ 71#define ATTN_START 0x40 /* Start CCB */ 72#define ATTN_ABORT 0x50 /* Abort CCB */ 73 74#define G2CNTRL_HRST 0x80 /* Hard Reset */ 75#define G2CNTRL_IRST 0x40 /* Clear EISA Interrupt */ 76#define G2CNTRL_HRDY 0x20 /* Sets HOST ready */ 77 78/* This is used with scatter-gather */ 79struct aha1740_chain { 80 u32 dataptr; /* Location of data */ 81 u32 datalen; /* Size of this part of chain */ 82}; 83 84/* These belong in scsi.h */ 85#define any2scsi(up, p) \ 86(up)[0] = (((unsigned long)(p)) >> 16) ; \ 87(up)[1] = (((unsigned long)(p)) >> 8); \ 88(up)[2] = ((unsigned long)(p)); 89 90#define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) ) 91 92#define xany2scsi(up, p) \ 93(up)[0] = ((long)(p)) >> 24; \ 94(up)[1] = ((long)(p)) >> 16; \ 95(up)[2] = ((long)(p)) >> 8; \ 96(up)[3] = ((long)(p)); 97 98#define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \ 99 + (((long)(up)[2]) << 8) + ((long)(up)[3]) ) 100 101#define MAX_CDB 12 102#define MAX_SENSE 14 103#define MAX_STATUS 32 104 105struct ecb { /* Enhanced Control Block 6.1 */ 106 u16 cmdw; /* Command Word */ 107 /* Flag Word 1 */ 108 u16 cne:1, /* Control Block Chaining */ 109 :6, di:1, /* Disable Interrupt */ 110 :2, ses:1, /* Suppress Underrun error */ 111 :1, sg:1, /* Scatter/Gather */ 112 :1, dsb:1, /* Disable Status Block */ 113 ars:1; /* Automatic Request Sense */ 114 /* Flag Word 2 */ 115 u16 lun:3, /* Logical Unit */ 116 tag:1, /* Tagged Queuing */ 117 tt:2, /* Tag Type */ 118 nd:1, /* No Disconnect */ 119 :1, dat:1, /* Data transfer - check direction */ 120 dir:1, /* Direction of transfer 1 = datain */ 121 st:1, /* Suppress Transfer */ 122 chk:1, /* Calculate Checksum */ 123 :2, rec:1,:1; /* Error Recovery */ 124 u16 nil0; /* nothing */ 125 u32 dataptr; /* Data or Scatter List ptr */ 126 u32 datalen; /* Data or Scatter List len */ 127 u32 statusptr; /* Status Block ptr */ 128 u32 linkptr; /* Chain Address */ 129 u32 nil1; /* nothing */ 130 u32 senseptr; /* Sense Info Pointer */ 131 u8 senselen; /* Sense Length */ 132 u8 cdblen; /* CDB Length */ 133 u16 datacheck; /* Data checksum */ 134 u8 cdb[MAX_CDB]; /* CDB area */ 135/* Hardware defined portion ends here, rest is driver defined */ 136 u8 sense[MAX_SENSE]; /* Sense area */ 137 u8 status[MAX_STATUS]; /* Status area */ 138 struct scsi_cmnd *SCpnt; /* Link to the SCSI Command Block */ 139 void (*done) (struct scsi_cmnd *); /* Completion Function */ 140}; 141 142#define AHA1740CMD_NOP 0x00 /* No OP */ 143#define AHA1740CMD_INIT 0x01 /* Initiator SCSI Command */ 144#define AHA1740CMD_DIAG 0x05 /* Run Diagnostic Command */ 145#define AHA1740CMD_SCSI 0x06 /* Initialize SCSI */ 146#define AHA1740CMD_SENSE 0x08 /* Read Sense Information */ 147#define AHA1740CMD_DOWN 0x09 /* Download Firmware (yeah, I bet!) */ 148#define AHA1740CMD_RINQ 0x0a /* Read Host Adapter Inquiry Data */ 149#define AHA1740CMD_TARG 0x10 /* Target SCSI Command */ 150 151#define AHA1740_ECBS 32 152#define AHA1740_SCATTER 16 153 154#endif 155