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NetBSD/sys/dev/ic/bhareg.h
jonathan 79b026a8f3 * Add command struct and modifier definitions for controlling the 
ISA-compatible port space of PCI buslogic cards.

* Add call to bha_pci.c to disable the ISA-compatible ports of a PCI
  device.  The ISA-compatible ports are enabled by default, which
  causes the card to be autoconfigured a second time as an ISA device,
  which appears to deadlock the card.

* Change bha_cmd() to return the number of bytes it actually received
  in response to a command, or -1 on error.

*  Use heuristics (checking for bha-only registers, and checking the size
   of the response to BHA_INQURE_EXTENDED) to bha_find, to make sure the
   bha driver never matches an aha (Adaptec    1542 or compatible) device.

A single kernel should now boot on either Adaptec or BusLogic controllers,
provided we always probe for BusLogic devices before Adaptec devices,
but this has not yet been verified.
1996-11-05 03:04:28 +00:00

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/* $NetBSD: bhareg.h,v 1.3 1996/11/05 03:04:31 jonathan Exp $ */
/*
* Copyright (c) 1994, 1996 Charles M. Hannum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles M. Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Originally written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems for use under the MACH(2.5) operating system.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*/
typedef u_int8_t physaddr[4];
typedef u_int8_t physlen[4];
#define ltophys _lto4l
#define phystol _4ltol
/*
* I/O port offsets
*/
#define BHA_CTRL_PORT 0 /* control (wo) */
#define BHA_STAT_PORT 0 /* status (ro) */
#define BHA_CMD_PORT 1 /* command (wo) */
#define BHA_DATA_PORT 1 /* data (ro) */
#define BHA_INTR_PORT 2 /* interrupt status (ro) */
#define BHA_EXTGEOM_PORT 2 /* extended geometry (ro) */
/*
* BHA_CTRL bits
*/
#define BHA_CTRL_HRST 0x80 /* Hardware reset */
#define BHA_CTRL_SRST 0x40 /* Software reset */
#define BHA_CTRL_IRST 0x20 /* Interrupt reset */
#define BHA_CTRL_SCRST 0x10 /* SCSI bus reset */
/*
* BHA_STAT bits
*/
#define BHA_STAT_STST 0x80 /* Self test in Progress */
#define BHA_STAT_DIAGF 0x40 /* Diagnostic Failure */
#define BHA_STAT_INIT 0x20 /* Mbx Init required */
#define BHA_STAT_IDLE 0x10 /* Host Adapter Idle */
#define BHA_STAT_CDF 0x08 /* cmd/data out port full */
#define BHA_STAT_DF 0x04 /* Data in port full */
#define BHA_STAT_INVDCMD 0x01 /* Invalid command */
/*
* BHA_CMD opcodes
*/
#define BHA_NOP 0x00 /* No operation */
#define BHA_MBX_INIT 0x01 /* Mbx initialization */
#define BHA_START_SCSI 0x02 /* start scsi command */
#define BHA_INQUIRE_REVISION 0x04 /* Adapter Inquiry */
#define BHA_MBO_INTR_EN 0x05 /* Enable MBO available interrupt */
#if 0
#define BHA_SEL_TIMEOUT_SET 0x06 /* set selection time-out */
#define BHA_BUS_ON_TIME_SET 0x07 /* set bus-on time */
#define BHA_BUS_OFF_TIME_SET 0x08 /* set bus-off time */
#define BHA_SPEED_SET 0x09 /* set transfer speed */
#endif
#define BHA_INQUIRE_DEVICES 0x0a /* return installed devices 0-7 */
#define BHA_INQUIRE_CONFIG 0x0b /* return configuration data */
#define BHA_TARGET_EN 0x0c /* enable target mode */
#define BHA_INQUIRE_SETUP 0x0d /* return setup data */
#define BHA_ECHO 0x1e /* Echo command data */
#define BHA_INQUIRE_DEVICES_2 0x23 /* return installed devices 8-15 */
#define BHA_MBX_INIT_EXTENDED 0x81 /* Mbx initialization */
#define BHA_INQUIRE_REVISION_3 0x84 /* Get 3rd firmware version byte */
#define BHA_INQUIRE_REVISION_4 0x85 /* Get 4th firmware version byte */
#define BHA_INQUIRE_MODEL 0x8b /* Get hardware ID and revision */
#define BHA_INQUIRE_PERIOD 0x8c /* Get synchronous period */
#define BHA_INQUIRE_EXTENDED 0x8d /* Adapter Setup Inquiry */
#define BHA_ROUND_ROBIN 0x8f /* Enable/Disable(default) round robin */
#define BHA_MODIFY_IOPORT 0x95 /* change or disable I/O port */
/*
* BHA_INTR bits
*/
#define BHA_INTR_ANYINTR 0x80 /* Any interrupt */
#define BHA_INTR_SCRD 0x08 /* SCSI reset detected */
#define BHA_INTR_HACC 0x04 /* Command complete */
#define BHA_INTR_MBOA 0x02 /* MBX out empty */
#define BHA_INTR_MBIF 0x01 /* MBX in full */
struct bha_mbx_out {
physaddr ccb_addr;
u_char dummy[3];
u_char cmd;
};
struct bha_mbx_in {
physaddr ccb_addr;
u_char dummy[3];
u_char stat;
};
/*
* mbo.cmd values
*/
#define BHA_MBO_FREE 0x0 /* MBO entry is free */
#define BHA_MBO_START 0x1 /* MBO activate entry */
#define BHA_MBO_ABORT 0x2 /* MBO abort entry */
/*
* mbi.stat values
*/
#define BHA_MBI_FREE 0x0 /* MBI entry is free */
#define BHA_MBI_OK 0x1 /* completed without error */
#define BHA_MBI_ABORT 0x2 /* aborted ccb */
#define BHA_MBI_UNKNOWN 0x3 /* Tried to abort invalid CCB */
#define BHA_MBI_ERROR 0x4 /* Completed with error */
#if defined(BIG_DMA)
WARNING...THIS WON'T WORK(won't fit on 1 page)
#if 0
#define BHA_NSEG 2048 /* Number of scatter gather segments - to much vm */
#endif
#define BHA_NSEG 128
#else
#define BHA_NSEG 33
#endif /* BIG_DMA */
struct bha_scat_gath {
physlen seg_len;
physaddr seg_addr;
};
struct bha_ccb {
u_char opcode;
u_char:3, data_in:1, data_out:1,:3;
u_char scsi_cmd_length;
u_char req_sense_length;
/*------------------------------------longword boundary */
physlen data_length;
/*------------------------------------longword boundary */
physaddr data_addr;
/*------------------------------------longword boundary */
u_char dummy1[2];
u_char host_stat;
u_char target_stat;
/*------------------------------------longword boundary */
u_char target;
u_char lun;
struct scsi_generic scsi_cmd;
u_char dummy2[1];
u_char link_id;
/*------------------------------------longword boundary */
physaddr link_addr;
/*------------------------------------longword boundary */
physaddr sense_ptr;
/*-----end of HW fields-----------------------longword boundary */
struct scsi_sense_data scsi_sense;
/*------------------------------------longword boundary */
struct bha_scat_gath scat_gath[BHA_NSEG];
/*------------------------------------longword boundary */
TAILQ_ENTRY(bha_ccb) chain;
struct bha_ccb *nexthash;
long hashkey;
struct scsi_xfer *xs; /* the scsi_xfer for this cmd */
int flags;
#define CCB_ALLOC 0x01
#define CCB_ABORT 0x02
#ifdef BHADIAG
#define CCB_SENDING 0x04
#endif
int timeout;
};
/*
* opcode fields
*/
#define BHA_INITIATOR_CCB 0x00 /* SCSI Initiator CCB */
#define BHA_TARGET_CCB 0x01 /* SCSI Target CCB */
#define BHA_INIT_SCAT_GATH_CCB 0x02 /* SCSI Initiator with scattter gather */
#define BHA_RESET_CCB 0x81 /* SCSI Bus reset */
/*
* bha_ccb.host_stat values
*/
#define BHA_OK 0x00 /* cmd ok */
#define BHA_LINK_OK 0x0a /* Link cmd ok */
#define BHA_LINK_IT 0x0b /* Link cmd ok + int */
#define BHA_SEL_TIMEOUT 0x11 /* Selection time out */
#define BHA_OVER_UNDER 0x12 /* Data over/under run */
#define BHA_BUS_FREE 0x13 /* Bus dropped at unexpected time */
#define BHA_INV_BUS 0x14 /* Invalid bus phase/sequence */
#define BHA_BAD_MBO 0x15 /* Incorrect MBO cmd */
#define BHA_BAD_CCB 0x16 /* Incorrect ccb opcode */
#define BHA_BAD_LINK 0x17 /* Not same values of LUN for links */
#define BHA_INV_TARGET 0x18 /* Invalid target direction */
#define BHA_CCB_DUP 0x19 /* Duplicate CCB received */
#define BHA_INV_CCB 0x1a /* Invalid CCB or segment list */
struct bha_extended_inquire {
struct {
u_char opcode;
u_char len;
} cmd;
struct {
u_char bus_type; /* Type of bus connected to */
#define BHA_BUS_TYPE_24BIT 'A' /* ISA bus */
#define BHA_BUS_TYPE_32BIT 'E' /* EISA/VLB/PCI bus */
#define BHA_BUS_TYPE_MCA 'M' /* MicroChannel bus */
u_char bios_address; /* Address of adapter BIOS */
u_short max_segment; /* ? */
} reply;
};
struct bha_config {
struct {
u_char opcode;
} cmd;
struct {
u_char chan;
u_char intr;
u_char scsi_dev:3;
u_char :5;
} reply;
};
struct bha_toggle {
struct {
u_char opcode;
u_char enable;
} cmd;
};
struct bha_mailbox {
struct {
u_char opcode;
u_char nmbx;
physaddr addr;
} cmd;
};
struct bha_model {
struct {
u_char opcode;
u_char len;
} cmd;
struct {
u_char id[4]; /* i.e bt742a -> '7','4','2','A' */
u_char version[2]; /* i.e Board Revision 'H' -> 'H', 0x00 */
} reply;
};
struct bha_revision {
struct {
u_char opcode;
} cmd;
struct {
u_char board_type;
u_char custom_feature;
char firm_revision;
u_char firm_version;
} reply;
};
struct bha_digit {
struct {
u_char opcode;
} cmd;
struct {
u_char digit;
} reply;
};
struct bha_devices {
struct {
u_char opcode;
} cmd;
struct {
u_char junk[8];
} reply;
};
struct bha_setup {
struct {
u_char opcode;
u_char len;
} cmd;
struct {
u_char sync_neg:1;
u_char parity:1;
u_char :6;
u_char speed;
u_char bus_on;
u_char bus_off;
u_char num_mbx;
u_char mbx[3]; /*XXX */
/* doesn't make sense with 32bit addresses */
struct {
u_char offset:4;
u_char period:3;
u_char valid:1;
} sync[8];
u_char disc_sts;
} reply;
};
struct bha_period {
struct {
u_char opcode;
u_char len;
} cmd;
struct {
u_char period[8];
} reply;
};
struct bha_isadisable {
struct {
u_char opcode;
u_char modifier;
} cmd;
};
/*
* bha_isadisable.modifier parameters
*/
#define BHA_IOMODIFY_330 0x00
#define BHA_IOMODIFY_334 0x01
#define BHA_IOMODIFY_DISABLE1 0x06
#define BHA_IOMODIFY_DISABLE2 0x07
#define INT9 0x01
#define INT10 0x02
#define INT11 0x04
#define INT12 0x08
#define INT14 0x20
#define INT15 0x40
#define EISADMA 0x00
#define CHAN0 0x01
#define CHAN5 0x20
#define CHAN6 0x40
#define CHAN7 0x80
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