/*-
* Copyright (c) 1996-1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum, Masaru Oki and Kouichi Matsuda.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*
* Copyright (c) 1994 Jarle Greipsland
* 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. 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.
*/
/*
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1996, 1997, 1998
* NetBSD/pc98 porting staff. All rights reserved.
* Copyright (c) 1996, 1997, 1998
* Kouich Matsuda. All rights reserved.
*/
#ifndef _MB89352VAR_H_
#define _MB89352VAR_H_
/*
* ACB. Holds additional information for each SCSI command Comments: We
* need a separate scsi command block because we may need to overwrite it
* with a request sense command. Basically, we refrain from fiddling with
* the scsi_xfer struct (except do the expected updating of return values).
* We'll generally update: xs->{flags,resid,error,sense,status} and
* occasionally xs->retries.
*/
struct spc_acb {
struct scsipi_generic scsipi_cmd;
int scsipi_cmd_length;
uint8_t *data_addr; /* Saved data pointer */
int data_length; /* Residue */
/*
* Some info about each (possible) target on the SCSI bus. This should
* probably have been a "per target+lunit" structure, but we'll leave it at
* this for now.
*/
struct spc_tinfo {
int cmds; /* #commands processed */
int dconns; /* #disconnects */
int touts; /* #timeouts */
int perrs; /* #parity errors */
int senses; /* #request sense commands sent */
ushort lubusy; /* What local units/subr. are busy? */
u_char flags;
#define DO_SYNC 0x01 /* (Re)Negotiate synchronous options */
#define DO_WIDE 0x02 /* (Re)Negotiate wide options */
uint8_t period; /* Period suggestion */
uint8_t offset; /* Offset suggestion */
uint8_t width; /* Width suggestion */
};
/* Data about the current nexus (updated for every cmd switch) */
uint8_t *sc_dp; /* Current data pointer */
size_t sc_dleft; /* Data bytes left to transfer */
uint8_t *sc_cp; /* Current command pointer */
size_t sc_cleft; /* Command bytes left to transfer */
/* Adapter state */
uint8_t sc_phase; /* Current bus phase */
uint8_t sc_prevphase; /* Previous bus phase */
uint8_t sc_state; /* State applicable to the adapter */
#define SPC_INIT 0
#define SPC_IDLE 1
#define SPC_SELECTING 2 /* SCSI command is arbiting */
#define SPC_RESELECTED 3 /* Has been reselected */
#define SPC_CONNECTED 4 /* Actively using the SCSI bus */
#define SPC_DISCONNECT 5 /* MSG_DISCONNECT received */
#define SPC_CMDCOMPLETE 6 /* MSG_CMDCOMPLETE received */
#define SPC_CLEANING 7
uint8_t sc_flags;
#define SPC_DROP_MSGIN 0x01 /* Discard all msgs (parity err detected) */
#define SPC_ABORTING 0x02 /* Bailing out */
#define SPC_DOINGDMA 0x04 /* doing DMA */
#define SPC_INACTIVE 0x80 /* The FIFO data path is active! */
uint8_t sc_selid; /* Reselection ID */
device_t sc_child;/* Our child */
/* Message stuff */
uint8_t sc_msgpriq; /* Messages we want to send */
uint8_t sc_msgoutq; /* Messages sent during last MESSAGE OUT */
uint8_t sc_lastmsg; /* Message last transmitted */
uint8_t sc_currmsg; /* Message currently ready to transmit */
#define SEND_DEV_RESET 0x01
#define SEND_PARITY_ERROR 0x02
#define SEND_INIT_DET_ERR 0x04
#define SEND_REJECT 0x08
#define SEND_IDENTIFY 0x10
#define SEND_ABORT 0x20
#define SEND_SDTR 0x40
#define SEND_WDTR 0x80
#define SPC_MAX_MSG_LEN 8
uint8_t sc_omess[SPC_MAX_MSG_LEN];
uint8_t *sc_omp; /* Outgoing message pointer */
uint8_t sc_imess[SPC_MAX_MSG_LEN];
uint8_t *sc_imp; /* Incoming message pointer */
/* Hardware stuff */
int sc_initiator; /* Our scsi id */
int sc_freq; /* Clock frequency in MHz */
int sc_minsync; /* Minimum sync period / 4 */
int sc_maxsync; /* Maximum sync period / 4 */
/* DMA function set from MD code */
void (*sc_dma_start)(struct spc_softc *, void *, size_t, int);
void (*sc_dma_done)(struct spc_softc *);
};
#if SPC_DEBUG
#define SPC_SHOWACBS 0x01
#define SPC_SHOWINTS 0x02
#define SPC_SHOWCMDS 0x04
#define SPC_SHOWMISC 0x08
#define SPC_SHOWTRACE 0x10
#define SPC_SHOWSTART 0x20
#define SPC_DOBREAK 0x40
extern int spc_debug; /* SPC_SHOWSTART|SPC_SHOWMISC|SPC_SHOWTRACE; */
#define SPC_PRINT(b, s) \
do { \
if ((spc_debug & (b)) != 0) \
printf s; \
} while (/* CONSTCOND */ 0)
#define SPC_BREAK() \
do { \
if ((spc_debug & SPC_DOBREAK) != 0) \
Debugger(); \
} while (/* CONSTCOND */ 0)
#define SPC_ASSERT(x) \
do { \
if (x) { \
; \
} else { \
printf("%s at line %d: assertion failed\n", \
device_xname(sc->sc_dev), __LINE__); \
Debugger(); \
} \
} while (/* CONSTCOND */ 0)
#else
#define SPC_PRINT(b, s)
#define SPC_BREAK()
#define SPC_ASSERT(x)
#endif
