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