diff options
Diffstat (limited to 'drivers/scsi/aha1542.h')
| -rw-r--r-- | drivers/scsi/aha1542.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/drivers/scsi/aha1542.h b/drivers/scsi/aha1542.h new file mode 100644 index 00000000000..c402351dc79 --- /dev/null +++ b/drivers/scsi/aha1542.h @@ -0,0 +1,151 @@ +#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 <linux/types.h> + +/* 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 */ +static inline void any2scsi(u8 *p, u32 v) +{ + p[0] = v >> 16; + p[1] = v >> 8; + p[2] = v; +} + +#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 */ +}; + +static int aha1542_detect(Scsi_Host_Template *); +static int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)); +static int aha1542_abort(Scsi_Cmnd * SCpnt); +static int aha1542_bus_reset(Scsi_Cmnd * SCpnt); +static int aha1542_dev_reset(Scsi_Cmnd * SCpnt); +static int aha1542_host_reset(Scsi_Cmnd * SCpnt); +#if 0 +static int aha1542_old_abort(Scsi_Cmnd * SCpnt); +static int aha1542_old_reset(Scsi_Cmnd *, unsigned int); +#endif +static int aha1542_biosparam(struct scsi_device *, struct block_device *, + sector_t, int *); + +#define AHA1542_MAILBOXES 8 +#define AHA1542_SCATTER 16 +#define AHA1542_CMDLUN 1 + +#endif |