#ifndef _AHA1542_H /* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $ * * Header file for the adaptec 1542 driver for Linux * * $Log: aha1542.h,v $ * Revision 1.1 1992/07/24 06:27:38 root * Initial revision * * Revision 1.2 1992/07/04 18:41:49 root * Replaced distribution with current drivers * * Revision 1.3 1992/06/23 23:58:20 root * Fixes. * * Revision 1.2 1992/05/26 22:13:23 root * Changed bug that prevented DMA above first 2 mbytes. * * Revision 1.1 1992/05/22 21:00:29 root * Initial revision * * Revision 1.1 1992/04/24 18:01:50 root * Initial revision * * Revision 1.1 1992/04/02 03:23:13 drew * Initial revision * * Revision 1.3 1992/01/27 14:46:29 tthorn * *** empty log message *** * */ #include /* I/O Port interface 4.2 */ /* READ */ #define STATUS(base) base #define STST 0x80 /* Self Test in Progress */ #define DIAGF 0x40 /* Internal Diagnostic Failure */ #define INIT 0x20 /* Mailbox Initialization Required */ #define IDLE 0x10 /* SCSI Host Adapter Idle */ #define CDF 0x08 /* Command/Data Out Port Full */ #define DF 0x04 /* Data In Port Full */ #define INVDCMD 0x01 /* Invalid H A Command */ #define STATMASK 0xfd /* 0x02 is reserved */ #define INTRFLAGS(base) (STATUS(base)+2) #define ANYINTR 0x80 /* Any Interrupt */ #define SCRD 0x08 /* SCSI Reset Detected */ #define HACC 0x04 /* HA Command Complete */ #define MBOA 0x02 /* MBO Empty */ #define MBIF 0x01 /* MBI Full */ #define INTRMASK 0x8f /* WRITE */ #define CONTROL(base) STATUS(base) #define HRST 0x80 /* Hard Reset */ #define SRST 0x40 /* Soft Reset */ #define IRST 0x20 /* Interrupt Reset */ #define SCRST 0x10 /* SCSI Bus Reset */ /* READ/WRITE */ #define DATA(base) (STATUS(base)+1) #define CMD_NOP 0x00 /* No Operation */ #define CMD_MBINIT 0x01 /* Mailbox Initialization */ #define CMD_START_SCSI 0x02 /* Start SCSI Command */ #define CMD_INQUIRY 0x04 /* Adapter Inquiry */ #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */ #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */ #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */ #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */ #define CMD_RETDEVS 0x0a /* Return Installed Devices */ #define CMD_RETCONF 0x0b /* Return Configuration Data */ #define CMD_RETSETUP 0x0d /* Return Setup Data */ #define CMD_ECHO 0x1f /* ECHO Command Data */ #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */ #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */ /* Mailbox Definition 5.2.1 and 5.2.2 */ struct mailbox { unchar status; /* Command/Status */ unchar ccbptr[3]; /* msb, .., lsb */ }; /* This is used with scatter-gather */ struct chain { unchar datalen[3]; /* Size of this part of chain */ unchar dataptr[3]; /* Location of data */ }; /* These belong in scsi.h also */ #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 struct ccb { /* Command Control Block 5.3 */ unchar op; /* Command Control Block Operation Code */ unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */ /* Outbound data transfer, length is checked*/ /* Inbound data transfer, length is checked */ /* Logical Unit Number */ unchar cdblen; /* SCSI Command Length */ unchar rsalen; /* Request Sense Allocation Length/Disable */ unchar datalen[3]; /* Data Length (msb, .., lsb) */ unchar dataptr[3]; /* Data Pointer */ unchar linkptr[3]; /* Link Pointer */ unchar commlinkid; /* Command Linking Identifier */ unchar hastat; /* Host Adapter Status (HASTAT) */ unchar tarstat; /* Target Device Status */ unchar reserved[2]; unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */ /* REQUEST SENSE */ }; int aha1542_detect(Scsi_Host_Template *); int aha1542_command(Scsi_Cmnd *); int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); int aha1542_abort(Scsi_Cmnd *); int aha1542_reset(Scsi_Cmnd *); int aha1542_biosparam(Disk *, int, int*); #define AHA1542_MAILBOXES 8 #define AHA1542_SCATTER 16 #define AHA1542_CMDLUN 1 #ifndef NULL #define NULL 0 #endif #define AHA1542 { NULL, NULL, \ "Adaptec 1542", \ aha1542_detect, \ NULL, \ NULL, \ aha1542_command, \ aha1542_queuecommand, \ aha1542_abort, \ aha1542_reset, \ NULL, \ aha1542_biosparam, \ AHA1542_MAILBOXES, \ 7, \ AHA1542_SCATTER, \ AHA1542_CMDLUN, \ 0, \ 1, \ ENABLE_CLUSTERING} #endif