1 #ifndef _AHA1542_H 2 3 /* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $ 4 * 5 * Header file for the adaptec 1542 driver for Linux 6 * 7 * $Log: aha1542.h,v $ 8 * Revision 1.1 1992/07/24 06:27:38 root 9 * Initial revision 10 * 11 * Revision 1.2 1992/07/04 18:41:49 root 12 * Replaced distribution with current drivers 13 * 14 * Revision 1.3 1992/06/23 23:58:20 root 15 * Fixes. 16 * 17 * Revision 1.2 1992/05/26 22:13:23 root 18 * Changed bug that prevented DMA above first 2 mbytes. 19 * 20 * Revision 1.1 1992/05/22 21:00:29 root 21 * Initial revision 22 * 23 * Revision 1.1 1992/04/24 18:01:50 root 24 * Initial revision 25 * 26 * Revision 1.1 1992/04/02 03:23:13 drew 27 * Initial revision 28 * 29 * Revision 1.3 1992/01/27 14:46:29 tthorn 30 * *** empty log message *** 31 * 32 */ 33 34 #include <linux/types.h> 35 #include <linux/kdev_t.h> 36 37 /* I/O Port interface 4.2 */ 38 /* READ */ 39 #define STATUS(base) base 40 #define STST 0x80 /* Self Test in Progress */ 41 #define DIAGF 0x40 /* Internal Diagnostic Failure */ 42 #define INIT 0x20 /* Mailbox Initialization Required */ 43 #define IDLE 0x10 /* SCSI Host Adapter Idle */ 44 #define CDF 0x08 /* Command/Data Out Port Full */ 45 #define DF 0x04 /* Data In Port Full */ 46 #define INVDCMD 0x01 /* Invalid H A Command */ 47 #define STATMASK 0xfd /* 0x02 is reserved */ 48 49 #define INTRFLAGS(base) (STATUS(base)+2) 50 #define ANYINTR 0x80 /* Any Interrupt */ 51 #define SCRD 0x08 /* SCSI Reset Detected */ 52 #define HACC 0x04 /* HA Command Complete */ 53 #define MBOA 0x02 /* MBO Empty */ 54 #define MBIF 0x01 /* MBI Full */ 55 #define INTRMASK 0x8f 56 57 /* WRITE */ 58 #define CONTROL(base) STATUS(base) 59 #define HRST 0x80 /* Hard Reset */ 60 #define SRST 0x40 /* Soft Reset */ 61 #define IRST 0x20 /* Interrupt Reset */ 62 #define SCRST 0x10 /* SCSI Bus Reset */ 63 64 /* READ/WRITE */ 65 #define DATA(base) (STATUS(base)+1) 66 #define CMD_NOP 0x00 /* No Operation */ 67 #define CMD_MBINIT 0x01 /* Mailbox Initialization */ 68 #define CMD_START_SCSI 0x02 /* Start SCSI Command */ 69 #define CMD_INQUIRY 0x04 /* Adapter Inquiry */ 70 #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */ 71 #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */ 72 #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */ 73 #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */ 74 #define CMD_RETDEVS 0x0a /* Return Installed Devices */ 75 #define CMD_RETCONF 0x0b /* Return Configuration Data */ 76 #define CMD_RETSETUP 0x0d /* Return Setup Data */ 77 #define CMD_ECHO 0x1f /* ECHO Command Data */ 78 79 #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */ 80 #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */ 81 82 /* Mailbox Definition 5.2.1 and 5.2.2 */ 83 struct mailbox { 84 unchar status; /* Command/Status */ 85 unchar ccbptr[3]; /* msb, .., lsb */ 86 }; 87 88 /* This is used with scatter-gather */ 89 struct chain { 90 unchar datalen[3]; /* Size of this part of chain */ 91 unchar dataptr[3]; /* Location of data */ 92 }; 93 94 /* These belong in scsi.h also */ 95 #define any2scsi(up, p) \ 96 (up)[0] = (((unsigned long)(p)) >> 16) ; \ 97 (up)[1] = (((unsigned long)(p)) >> 8); \ 98 (up)[2] = ((unsigned long)(p)); 99 100 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) ) 101 102 #define xany2scsi(up, p) \ 103 (up)[0] = ((long)(p)) >> 24; \ 104 (up)[1] = ((long)(p)) >> 16; \ 105 (up)[2] = ((long)(p)) >> 8; \ 106 (up)[3] = ((long)(p)); 107 108 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \ 109 + (((long)(up)[2]) << 8) + ((long)(up)[3]) ) 110 111 #define MAX_CDB 12 112 #define MAX_SENSE 14 113 114 struct ccb { /* Command Control Block 5.3 */ 115 unchar op; /* Command Control Block Operation Code */ 116 unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */ 117 /* Outbound data transfer, length is checked*/ 118 /* Inbound data transfer, length is checked */ 119 /* Logical Unit Number */ 120 unchar cdblen; /* SCSI Command Length */ 121 unchar rsalen; /* Request Sense Allocation Length/Disable */ 122 unchar datalen[3]; /* Data Length (msb, .., lsb) */ 123 unchar dataptr[3]; /* Data Pointer */ 124 unchar linkptr[3]; /* Link Pointer */ 125 unchar commlinkid; /* Command Linking Identifier */ 126 unchar hastat; /* Host Adapter Status (HASTAT) */ 127 unchar tarstat; /* Target Device Status */ 128 unchar reserved[2]; 129 unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */ 130 /* REQUEST SENSE */ 131 }; 132 133 static int aha1542_detect(Scsi_Host_Template *); 134 static int aha1542_command(Scsi_Cmnd *); 135 static int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); 136 static int aha1542_abort(Scsi_Cmnd * SCpnt); 137 static int aha1542_bus_reset(Scsi_Cmnd * SCpnt); 138 static int aha1542_dev_reset(Scsi_Cmnd * SCpnt); 139 static int aha1542_host_reset(Scsi_Cmnd * SCpnt); 140 static int aha1542_old_abort(Scsi_Cmnd * SCpnt); 141 static int aha1542_old_reset(Scsi_Cmnd *, unsigned int); 142 static int aha1542_biosparam(Disk *, kdev_t, int*); 143 144 #define AHA1542_MAILBOXES 8 145 #define AHA1542_SCATTER 16 146 #define AHA1542_CMDLUN 1 147 148 #ifndef NULL 149 #define NULL 0 150 #endif 151 152 #define AHA1542 { proc_name: "aha1542", \ 153 name: "Adaptec 1542", \ 154 detect: aha1542_detect, \ 155 command: aha1542_command, \ 156 queuecommand: aha1542_queuecommand, \ 157 abort: aha1542_old_abort, \ 158 reset: aha1542_old_reset, \ 159 eh_abort_handler: aha1542_abort, \ 160 eh_device_reset_handler: aha1542_dev_reset, \ 161 eh_bus_reset_handler: aha1542_bus_reset, \ 162 eh_host_reset_handler: aha1542_host_reset, \ 163 bios_param: aha1542_biosparam, \ 164 can_queue: AHA1542_MAILBOXES, \ 165 this_id: 7, \ 166 sg_tablesize: AHA1542_SCATTER, \ 167 cmd_per_lun: AHA1542_CMDLUN, \ 168 unchecked_isa_dma: 1, \ 169 use_clustering: ENABLE_CLUSTERING, \ 170 use_new_eh_code: 1} 171 172 #endif 173