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freebsd-dev/sys/i386/isa/bs/bsfunc.c
Yoshihiro Takahashi 82a9a36d9f Change splbio() to splcam(). bs is cam driver.
1999-12-03 11:58:12 +00:00

923 lines
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/* $NecBSD: bsfunc.c,v 1.2 1997/10/31 17:43:37 honda Exp $ */
/* $NetBSD$ */
/* $FreeBSD$ */
/*
* [NetBSD for NEC PC98 series]
* Copyright (c) 1994, 1995, 1996 NetBSD/pc98 porting staff.
* 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.
*/
/*
* Copyright (c) 1994, 1995, 1996 Naofumi HONDA. All rights reserved.
*/
#ifdef __NetBSD__
#include <i386/Cbus/dev/bs/bsif.h>
#endif
#ifdef __FreeBSD__
#include <i386/isa/bs/bsif.h>
#endif
#ifdef BS_STATICS
struct bs_statics bs_statics[NTARGETS];
u_int bs_linkcmd_count[NTARGETS];
u_int bs_bounce_used[NTARGETS];
#endif /* BS_STATICS */
#ifdef BS_DEBUG
int bs_debug_flag = 0;
#endif /* BS_DEBUG */
static void bs_print_syncmsg __P((struct targ_info *, char*));
static void bs_timeout_target __P((struct targ_info *));
static void bs_kill_msg __P((struct bsccb *cb));
static int bs_start_target __P((struct targ_info *));
static int bs_check_target __P((struct targ_info *));
/*************************************************************
* CCB
************************************************************/
GENERIC_CCB_STATIC_ALLOC(bs, bsccb)
GENERIC_CCB(bs, bsccb, ccb_chain)
/*************************************************************
* TIMEOUT
************************************************************/
static void
bs_timeout_target(ti)
struct targ_info *ti;
{
struct bs_softc *bsc = ti->ti_bsc;
ti->ti_error |= BSTIMEOUT;
bsc->sc_flags |= BSRESET;
if (ti->ti_herrcnt ++ >= HARDRETRIES)
{
bs_printf(ti, "timeout", "async transfer!");
ti->ti_syncmax.period = ti->ti_syncmax.offset = 0;
}
}
void
bstimeout(arg)
void *arg;
{
struct bs_softc *bsc = (struct bs_softc *) arg;
struct targ_info *ti;
struct bsccb *cb;
int s;
s = splcam();
bsc->sc_flags &= ~BSSTARTTIMEOUT;
/* check */
if ((ti = bsc->sc_nexus) && (cb = ti->ti_ctab.tqh_first))
{
if ((cb->tc -= BS_TIMEOUT_CHECK_INTERVAL) < 0)
bs_timeout_target(ti);
}
else for (ti = bsc->sc_titab.tqh_first; ti; ti = ti->ti_tchain.tqe_next)
{
if (bsc->sc_dtgnum && ti->ti_phase < DISCONNECTED)
continue;
cb = ti->ti_ctab.tqh_first;
if (cb && ((cb->tc -= BS_TIMEOUT_CHECK_INTERVAL) < 0))
bs_timeout_target(ti);
}
/* try to recover */
if (bsc->sc_flags & BSRESET)
{
bs_debug_print_all(bsc);
bs_printf(ti, "timeout", "bus hang up");
bs_reset_nexus(bsc);
}
bs_start_timeout(bsc);
splx(s);
}
/**************************************************
* MAKE CCB & MSG CCB
*************************************************/
static u_int8_t cmd_unit_ready[6];
struct bsccb *
bs_make_internal_ccb(ti, lun, cmd, cmdlen, data, datalen, flags, timeout)
struct targ_info *ti;
u_int lun;
u_int8_t *cmd;
u_int cmdlen;
u_int8_t *data;
u_int datalen;
u_int flags;
int timeout;
{
struct bsccb *cb;
if ((cb = bs_get_ccb()) == NULL)
bs_panic(ti->ti_bsc, "can not get ccb mem");
cb->ccb = NULL;
cb->lun = lun;
cb->cmd = (cmd ? cmd : cmd_unit_ready);
cb->cmdlen = (cmd ? cmdlen : sizeof(cmd_unit_ready));
cb->data = data;
cb->datalen = (data ? datalen : 0);
cb->msgoutlen = 0;
cb->bsccb_flags = flags & BSCFLAGSMASK;
bs_targ_flags(ti, cb);
cb->rcnt = 0;
cb->tcmax = (timeout > BS_DEFAULT_TIMEOUT_SECOND ? timeout :
BS_DEFAULT_TIMEOUT_SECOND);
TAILQ_INSERT_HEAD(&ti->ti_ctab, cb, ccb_chain);
return cb;
}
struct bsccb *
bs_make_msg_ccb(ti, lun, cb, msg, timex)
struct targ_info *ti;
u_int lun;
struct bsccb *cb;
struct msgbase *msg;
u_int timex;
{
u_int flags;
flags = BSFORCEIOPOLL | msg->flag;
if (cb == NULL)
cb = bs_make_internal_ccb(ti, lun, NULL, 0, NULL, 0,
flags, timex);
else
cb->bsccb_flags |= flags & BSCFLAGSMASK;
cb->msgoutlen = msg->msglen;
bcopy(msg->msg, cb->msgout, msg->msglen);
return cb;
}
int
bs_send_msg(ti, lun, msg, timex)
struct targ_info *ti;
u_int lun;
struct msgbase *msg;
int timex;
{
struct bsccb *cb;
cb = bs_make_msg_ccb(ti, lun, NULL, msg, timex);
bscmdstart(ti, BSCMDSTART);
return bs_scsi_cmd_poll(ti, cb);
}
static void
bs_kill_msg(cb)
struct bsccb *cb;
{
cb->msgoutlen = 0;
}
/**************************************************
* MAKE SENSE CCB
**************************************************/
struct bsccb *
bs_request_sense(ti)
struct targ_info *ti;
{
struct bsccb *cb;
bzero(ti->scsi_cmd, sizeof(struct scsi_sense));
bzero(&ti->sense, sizeof(struct scsi_sense_data));
ti->scsi_cmd[0] = REQUEST_SENSE;
ti->scsi_cmd[1] = (ti->ti_lun << 5);
ti->scsi_cmd[4] = sizeof(struct scsi_sense_data);
cb = bs_make_internal_ccb(ti, ti->ti_lun, ti->scsi_cmd,
sizeof(struct scsi_sense),
(u_int8_t *) & ti->sense,
sizeof(struct scsi_sense_data),
BSFORCEIOPOLL,
BS_DEFAULT_TIMEOUT_SECOND);
cb->bsccb_flags |= BSSENSECCB;
return cb;
}
/**************************************************
* SYNC MSG
*************************************************/
/* sync neg */
int
bs_start_syncmsg(ti, cb, flag)
struct targ_info *ti;
struct bsccb *cb;
int flag;
{
struct syncdata *negp, *maxp;
struct msgbase msg;
u_int lun;
negp = &ti->ti_syncnow;
maxp = &ti->ti_syncmax;
ti->ti_state = BS_TARG_SYNCH;
if (flag == BS_SYNCMSG_REQUESTED)
{
if (negp->offset > maxp->offset)
negp->offset = maxp->offset;
if (negp->offset != 0 && negp->period < maxp->period)
negp->period = maxp->period;
msg.flag = 0;
lun = ti->ti_lun;
if (cb == NULL)
cb = ti->ti_ctab.tqh_first;
}
else if (ti->ti_cfgflags & BS_SCSI_SYNC)
{
negp->offset = maxp->offset;
negp->period = maxp->period;
msg.flag = BSERROROK;
lun = 0;
}
else
{
ti->ti_state = BS_TARG_RDY;
return COMPLETE;
}
BS_SETUP_SYNCSTATE(flag);
msg.msg[0] = MSG_EXTEND;
msg.msg[1] = MSG_EXTEND_SYNCHLEN;
msg.msg[2] = MSG_EXTEND_SYNCHCODE;
msg.msg[3] = negp->period;
msg.msg[4] = negp->offset;
msg.msglen = MSG_EXTEND_SYNCHLEN + 2;
bs_make_msg_ccb(ti, lun, cb, &msg, BS_SYNC_TIMEOUT);
return COMPLETE;
}
static void
bs_print_syncmsg(ti, s)
struct targ_info *ti;
char *s;
{
struct bs_softc *bsc = ti->ti_bsc;
struct syncdata *negp;
u_int speed;
negp = &ti->ti_syncnow;
speed = (negp->offset && negp->period) ?
(2500 / ((u_int) negp->period)) : 0;
printf("%s(%d:%d): <%s> ", bsc->sc_dvname, ti->ti_id, ti->ti_lun, s);
printf("period 0x%x offset %d chip (0x%x)", negp->period, negp->offset,
ti->ti_sync);
if (speed)
printf(" %d.%d M/s", speed / 10, speed % 10);
printf("\n");
}
int
bs_analyze_syncmsg(ti, cb)
struct targ_info *ti;
struct bsccb *cb;
{
struct bs_softc *bsc = ti->ti_bsc;
u_int8_t ans = ti->ti_syncnow.state;
struct syncdata *negp, *maxp;
struct syncdata bdata;
char *s = NULL;
u_int8_t period;
negp = &ti->ti_syncnow;
bdata = *negp;
maxp = &ti->ti_syncmax;
switch(ans)
{
case BS_SYNCMSG_REJECT:
period = 0;
s = "msg reject";
break;
case BS_SYNCMSG_ASSERT:
period = 0;
s = "no msg";
break;
default:
if (negp->offset != 0 && negp->period < maxp->period)
{
period = 0xff;
s = "illegal(period)";
}
else if (negp->offset > maxp->offset)
{
period = 0xff;
s = "illegal(offset)";
}
else
period = negp->offset ? negp->period : 0;
break;
}
if (s == NULL)
{
bshw_adj_syncdata(negp);
*maxp = *negp;
if (ans == BS_SYNCMSG_REQUESTED)
s = "requested";
else
s = negp->offset ? "synchronous" : "async";
}
else
{
negp->offset = maxp->offset = 0;
bshw_adj_syncdata(negp);
bshw_adj_syncdata(maxp);
}
/* really setup hardware */
bshw_set_synchronous(bsc, ti);
if (cb == NULL || (period >= negp->period && period <= negp->period + 2))
{
bs_print_syncmsg(ti, s);
BS_SETUP_TARGSTATE(BS_TARG_RDY);
BS_SETUP_SYNCSTATE(BS_SYNCMSG_NULL);
if (cb)
bs_kill_msg(cb);
return 0;
}
else
{
bs_printf(ti, "bs_analyze_syncmsg",
"sync(period) mismatch, retry neg...");
printf("expect(%d:0x%x) => reply(%d:0x%x)\n",
bdata.offset, bdata.period, negp->offset, negp->period);
bs_start_syncmsg(ti, cb, BS_SYNCMSG_ASSERT);
return EINVAL;
}
}
/**************************************************
* ABORT AND RESET MSG
**************************************************/
/* send device reset msg and wait */
void
bs_reset_device(ti)
struct targ_info *ti;
{
struct msgbase msg;
msg.msglen = 1;
msg.msg[0] = MSG_RESET;
msg.flag = 0;
bs_send_msg(ti, 0, &msg, 0);
delay(ti->ti_bsc->sc_RSTdelay);
bs_check_target(ti);
}
/* send abort msg */
struct bsccb *
bs_force_abort(ti)
struct targ_info *ti;
{
struct bs_softc *bsc = ti->ti_bsc;
struct msgbase msg;
struct bsccb *cb = ti->ti_ctab.tqh_first;
u_int lun;
if (cb)
{
lun = cb->lun;
cb->rcnt++;
}
else
lun = 0;
msg.msglen = 1;
msg.msg[0] = MSG_ABORT;
msg.flag = 0;
cb = bs_make_msg_ccb(ti, lun, NULL, &msg, 0);
bscmdstart(ti, BSCMDSTART);
if (bsc->sc_nexus == ti)
BS_LOAD_SDP
return cb;
}
/**************************************************
* COMPLETE SCSI BUS RESET
*************************************************/
/*
* XXX:
* 1) reset scsi bus (ie. all target reseted).
* 2) chip reset.
* 3) check target status.
* 4) sync neg with all targets.
* 5) setup sync reg in host.
* 6) recover previous nexus.
*/
void
bs_scsibus_start(bsc)
struct bs_softc *bsc;
{
struct targ_info *ti, *nextti = NULL;
int error = HASERROR;
u_int querm, bits, skip = 0;
querm = (bsc->sc_hstate == BSC_BOOTUP);
bsc->sc_hstate = BSC_TARG_CHECK;
/* target check */
do
{
if (error != COMPLETE)
{
printf("%s: scsi bus reset and try to restart ...",
bsc->sc_dvname);
bshw_smitabort(bsc);
bshw_dmaabort(bsc, NULL);
bshw_chip_reset(bsc);
bshw_bus_reset(bsc);
bshw_chip_reset(bsc);
printf(" done. scsi bus ready.\n");
nextti = bsc->sc_titab.tqh_first;
error = COMPLETE;
}
if ((ti = nextti) == NULL)
break;
nextti = ti->ti_tchain.tqe_next;
bits = (1 << ti->ti_id);
if (skip & bits)
continue;
if ((error = bs_check_target(ti)) != COMPLETE)
{
if (querm)
{
TAILQ_REMOVE(&bsc->sc_titab, ti, ti_tchain);
bsc->sc_openf &= ~bits;
}
if (error == NOTARGET)
error = COMPLETE;
skip |= bits;
}
}
while (1);
/* ok now ready */
bsc->sc_hstate = BSC_RDY;
/* recover */
for (ti = bsc->sc_titab.tqh_first; ti; ti = ti->ti_tchain.tqe_next)
{
ti->ti_ctab = ti->ti_bctab;
TAILQ_INIT(&ti->ti_bctab);
if (ti->ti_ctab.tqh_first)
bscmdstart(ti, BSCMDSTART);
}
}
void
bs_reset_nexus(bsc)
struct bs_softc *bsc;
{
struct targ_info *ti;
struct bsccb *cb;
bsc->sc_flags &= ~(BSRESET | BSUNDERRESET);
if (bsc->sc_poll)
{
bsc->sc_flags |= BSUNDERRESET;
return;
}
/* host state clear */
BS_HOST_TERMINATE
BS_SETUP_MSGPHASE(FREE)
bsc->sc_dtgnum = 0;
/* target state clear */
for (ti = bsc->sc_titab.tqh_first; ti; ti = ti->ti_tchain.tqe_next)
{
if (ti->ti_state == BS_TARG_SYNCH)
bs_analyze_syncmsg(ti, NULL);
if (ti->ti_state > BS_TARG_START)
BS_SETUP_TARGSTATE(BS_TARG_START);
BS_SETUP_PHASE(UNDEF)
bs_hostque_delete(bsc, ti);
if ((cb = ti->ti_ctab.tqh_first) != NULL)
{
if (bsc->sc_hstate == BSC_TARG_CHECK)
{
ti->ti_error |= BSFATALIO;
bscmddone(ti);
}
else if (cb->rcnt >= bsc->sc_retry)
{
ti->ti_error |= BSABNORMAL;
bscmddone(ti);
}
else if (ti->ti_error)
cb->rcnt++;
}
/* target state clear */
BS_SETUP_PHASE(FREE)
BS_SETUP_SYNCSTATE(BS_SYNCMSG_NULL);
ti->ti_flags &= ~BSCFLAGSMASK;
ti->ti_msgout = 0;
#ifdef BS_DIAG
ti->ti_flags &= ~BSNEXUS;
#endif /* BS_DIAG */
for ( ; cb; cb = cb->ccb_chain.tqe_next)
{
bs_kill_msg(cb);
cb->bsccb_flags &= ~(BSITSDONE | BSCASTAT);
cb->error = 0;
}
if (bsc->sc_hstate != BSC_TARG_CHECK &&
ti->ti_bctab.tqh_first == NULL)
ti->ti_bctab = ti->ti_ctab;
TAILQ_INIT(&ti->ti_ctab);
}
if (bsc->sc_hstate != BSC_TARG_CHECK)
bs_scsibus_start(bsc);
}
/**************************************************
* CHECK TARGETS AND START TARGETS
*************************************************/
static int
bs_start_target(ti)
struct targ_info *ti;
{
struct bsccb *cb;
struct scsi_start_stop_unit cmd;
bzero(&cmd, sizeof(struct scsi_start_stop_unit));
cmd.opcode = START_STOP;
cmd.how = SSS_START;
ti->ti_lun = 0;
cb = bs_make_internal_ccb(ti, 0, (u_int8_t *) &cmd,
sizeof(struct scsi_start_stop_unit),
NULL, 0, BSFORCEIOPOLL, BS_MOTOR_TIMEOUT);
bscmdstart(ti, BSCMDSTART);
return bs_scsi_cmd_poll(ti, cb);
}
/* test unit ready and check ATN msgout response */
static int
bs_check_target(ti)
struct targ_info *ti;
{
struct bs_softc *bsc = ti->ti_bsc;
struct scsi_inquiry scsi_cmd;
struct scsi_inquiry_data scsi_inquiry_data;
struct bsccb *cb;
int count, retry = bsc->sc_retry;
int s, error = COMPLETE;
ti->ti_lun = 0;
bsc->sc_retry = 2;
s = splcam();
/* inquiry */
bzero(&scsi_cmd, sizeof(scsi_cmd));
scsi_cmd.opcode = INQUIRY;
scsi_cmd.length = sizeof(struct scsi_inquiry_data);
cb = bs_make_internal_ccb(ti, 0,
(u_int8_t *) &scsi_cmd, sizeof(scsi_cmd),
(u_int8_t *) &scsi_inquiry_data,
sizeof(scsi_inquiry_data),
BSFORCEIOPOLL, BS_STARTUP_TIMEOUT);
bscmdstart(ti, BSCMDSTART);
error = bs_scsi_cmd_poll(ti, cb);
if (error != COMPLETE || (ti->ti_error & BSSELTIMEOUT))
goto done;
ti->targ_type = scsi_inquiry_data.device;
ti->targ_support = scsi_inquiry_data.flags;
/* test unit ready twice */
for (count = 0; count < 2; count++)
{
cb = bs_make_internal_ccb(ti, 0, NULL, 0, NULL, 0,
BSFORCEIOPOLL, BS_STARTUP_TIMEOUT);
bscmdstart(ti, BSCMDSTART);
error = bs_scsi_cmd_poll(ti, cb);
if (error != COMPLETE || (ti->ti_error & BSSELTIMEOUT))
goto done;
}
if (cb->bsccb_flags & BSCASTAT)
bs_printf(ti, "check", "could not clear CA state");
ti->ti_error = 0;
done:
bsc->sc_retry = retry;
if (ti->ti_error & BSSELTIMEOUT)
error = NOTARGET;
if (error == COMPLETE)
error = bs_start_target(ti);
splx(s);
return error;
}
/**************************************************
* TARGET CONTROL
**************************************************/
struct targ_info *
bs_init_target_info(bsc, target)
struct bs_softc *bsc;
int target;
{
struct targ_info *ti;
ti = malloc(sizeof(struct targ_info), M_DEVBUF, M_NOWAIT);
if (ti == NULL)
{
bs_printf(NULL, "bs_init_targ_info", "no target info memory");
return ti;
}
bzero(ti, sizeof(*ti));
ti->ti_bsc = bsc;
ti->ti_id = target;
ti->sm_offset = 0;
ti->ti_cfgflags = BS_SCSI_NOPARITY | BS_SCSI_NOSAT;
ti->ti_mflags = ~(BSSAT | BSDISC | BSSMIT | BSLINK);
BS_SETUP_TARGSTATE(BS_TARG_CTRL);
TAILQ_INIT(&ti->ti_ctab);
bs_alloc_buf(ti);
if (ti->bounce_addr == NULL)
{
free(ti, M_DEVBUF);
return NULL;
}
TAILQ_INSERT_TAIL(&bsc->sc_titab, ti, ti_tchain);
bsc->sc_ti[target] = ti;
bsc->sc_openf |= (1 << target);
return ti;
}
void
bs_setup_ctrl(ti, quirks, flags)
struct targ_info *ti;
u_int quirks;
u_int flags;
{
struct bs_softc *bsc = ti->ti_bsc;
u_int offset, period, maxperiod;
if (ti->ti_state == BS_TARG_CTRL)
{
ti->ti_cfgflags = BS_SCSI_POSITIVE;
ti->ti_syncmax.offset = BSHW_MAX_OFFSET;
BS_SETUP_TARGSTATE(BS_TARG_START);
}
else
flags |= ti->ti_cfgflags & BS_SCSI_NEGATIVE;
#ifdef BS_TARG_SAFEMODE
if (ti->targ_type != 0)
{
flags &= ~(BS_SCSI_DISC | BS_SCSI_SYNC);
flags |= BS_SCSI_NOPARITY;
}
#endif
#ifdef SDEV_NODISC
if (quirks & SDEV_NODISC)
flags &= ~BS_SCSI_DISC;
#endif
#ifdef SDEV_NOPARITY
if (quirks & SDEV_NOPARITY)
flags |= BS_SCSI_NOPARITY;
#endif
#ifdef SDEV_NOCMDLNK
if (quirks & SDEV_NOCMDLNK)
flags &= ~BS_SCSI_LINK;
#endif
#ifdef SDEV_ASYNC
if (quirks & SDEV_ASYNC)
flags &= ~BS_SCSI_SYNC;
#endif
#ifdef SDEV_AUTOSAVE
if (quirks & SDEV_AUTOSAVE)
flags |= BS_SCSI_SAVESP;
#endif
#ifdef SD_Q_NO_SYNC
if (quirks & SD_Q_NO_SYNC)
flags &= ~BS_SCSI_SYNC;
#endif
if ((flags & BS_SCSI_DISC) == 0 ||
(ti->targ_support & SID_Linked) == 0)
flags &= ~BS_SCSI_LINK;
ti->sm_offset = (flags & BS_SCSI_NOSMIT) ? 0 : bsc->sm_offset;
if (ti->sm_offset == 0)
flags |= BS_SCSI_NOSMIT;
else if (bsc->sc_cfgflags & BSC_SMITSAT_DISEN)
flags |= BS_SCSI_NOSAT;
flags &= (ti->ti_cfgflags & BS_SCSI_POSITIVE) | (~BS_SCSI_POSITIVE);
ti->ti_cfgflags = flags;
/* calculate synch setup */
period = BS_SCSI_PERIOD(flags);
offset = (flags & BS_SCSI_SYNC) ? BS_SCSI_OFFSET(flags) : 0;
maxperiod = (bsc->sc_cspeed & IDR_FS_15_20) ? 100 : 50;
if (period > maxperiod)
period = maxperiod;
if (period)
period = 2500 / period;
if (ti->ti_syncmax.offset > offset)
ti->ti_syncmax.offset = offset;
if (ti->ti_syncmax.period < period)
ti->ti_syncmax.period = period;
bshw_adj_syncdata(&ti->ti_syncmax);
/* finally report our info */
printf("%s(%d:%d): {%d:0x%x:0x%x:%s} flags 0x%b\n",
bsc->sc_dvname, ti->ti_id, ti->ti_lun,
(u_int) ti->targ_type,
(u_int) ti->targ_support,
(u_int) ti->bounce_size,
(flags & BS_SCSI_NOSMIT) ? "dma" : "pdma",
flags, BS_SCSI_BITS);
/* internal representation */
ti->ti_mflags = ~0;
if ((ti->ti_cfgflags & BS_SCSI_DISC) == 0)
ti->ti_mflags &= ~BSDISC;
if ((ti->ti_cfgflags & BS_SCSI_LINK) == 0)
ti->ti_mflags &= ~BSLINK;
if (ti->ti_cfgflags & BS_SCSI_NOSAT)
ti->ti_mflags &= ~BSSAT;
if (ti->ti_cfgflags & BS_SCSI_NOSMIT)
ti->ti_mflags &= ~BSSMIT;
}
/**************************************************
* MISC
**************************************************/
void
bs_printf(ti, ph, c)
struct targ_info *ti;
char *ph;
char *c;
{
if (ti)
printf("%s(%d:%d): <%s> %s\n",
ti->ti_bsc->sc_dvname, ti->ti_id, ti->ti_lun, ph, c);
else
printf("bs*(*:*): <%s> %s\n", ph, c);
}
void
bs_panic(bsc, c)
struct bs_softc *bsc;
u_char *c;
{
panic("%s %s\n", bsc->sc_dvname, c);
}
/**************************************************
* DEBUG FUNC
**************************************************/
#ifdef BS_DEBUG_ROUTINE
u_int
bsr(addr)
u_int addr;
{
outb(0xcc0, addr);
return inb(0xcc2);
}
u_int
bsw(addr, data)
u_int addr;
int data;
{
outb(0xcc0, addr);
outb(0xcc2, data);
return 0;
}
#endif /* BS_DEBUG_ROUTINE */
void
bs_debug_print_all(bsc)
struct bs_softc *bsc;
{
struct targ_info *ti;
for (ti = bsc->sc_titab.tqh_first; ti; ti = ti->ti_tchain.tqe_next)
bs_debug_print(bsc, ti);
}
static u_char *phase[] =
{
"FREE", "HOSTQUE", "DISC", "COMPMSG", "ATN", "DISCMSG", "SELECT",
"SELECTED", "RESELECTED", "MSGIN", "MSGOUT", "STATIN", "CMDOUT",
"DATA", "SATSEL", "SATRESEL", "SATSDP", "SATCOMPSEQ", "UNDEF",
};
void
bs_debug_print(bsc, ti)
struct bs_softc *bsc;
struct targ_info *ti;
{
struct bsccb *cb;
/* host stat */
printf("%s <DEBUG INFO> nexus %lx bs %lx bus status %lx \n",
bsc->sc_dvname, (u_long) ti, (u_long) bsc->sc_nexus, (u_long) bsc->sc_busstat);
/* target stat */
if (ti)
{
struct sc_p *sp = &bsc->sc_p;
printf("%s(%d:%d) ph<%s> ", bsc->sc_dvname, ti->ti_id,
ti->ti_lun, phase[(int) ti->ti_phase]);
printf("msgptr %x msg[0] %x status %x tqh %lx fl %x\n",
(u_int) (ti->ti_msginptr), (u_int) (ti->ti_msgin[0]),
ti->ti_status, (u_long) (cb = ti->ti_ctab.tqh_first),
ti->ti_flags);
if (cb)
printf("cmdlen %x cmdaddr %lx cmd[0] %x\n",
cb->cmdlen, (u_long) cb->cmd, (int) cb->cmd[0]);
printf("datalen %x dataaddr %lx seglen %x ",
sp->datalen, (u_long) sp->data, sp->seglen);
if (cb)
printf("odatalen %x flags %x\n",
cb->datalen, cb->bsccb_flags);
else
printf("\n");
printf("error flags %b\n", ti->ti_error, BSERRORBITS);
}
}
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