912 lines
22 KiB
C
912 lines
22 KiB
C
/* $NetBSD: ct.c,v 1.28 2016/07/11 11:31:50 msaitoh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1996-2003 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe.
|
|
*
|
|
* 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) 1988 University of Utah.
|
|
* Copyright (c) 1982, 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* the Systems Programming Group of the University of Utah Computer
|
|
* Science Department.
|
|
*
|
|
* 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. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* from: Utah $Hdr: rd.c 1.44 92/12/26$
|
|
*
|
|
* @(#)rd.c 8.2 (Berkeley) 5/19/94
|
|
*/
|
|
|
|
/*
|
|
* CS/80 cartridge tape driver (HP9144, HP88140, HP9145)
|
|
*
|
|
* Reminder:
|
|
* C_CC bit (character count option) when used in the CS/80 command
|
|
* 'set options' will cause the tape not to stream.
|
|
*
|
|
* TODO:
|
|
* make filesystem compatible
|
|
* make block mode work according to mtio(4) spec. (if possible)
|
|
* merge with CS/80 disk driver
|
|
* finish support of HP9145
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: ct.c,v 1.28 2016/07/11 11:31:50 msaitoh Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/bufq.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/device.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mtio.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/tprintf.h>
|
|
|
|
#include <dev/gpib/ctreg.h> /* XXX must be before cs80busvar.h ATM */
|
|
|
|
#include <dev/gpib/gpibvar.h>
|
|
#include <dev/gpib/cs80busvar.h>
|
|
|
|
/* number of eof marks to remember */
|
|
#define EOFS 128
|
|
|
|
#ifdef DEBUG
|
|
int ctdebug = 0xff;
|
|
#define CDB_FILES 0x01
|
|
#define CDB_BSF 0x02
|
|
#define CDB_IDENT 0x04
|
|
#define CDB_FAIL 0x08
|
|
#define CDB_FOLLOW 0x10
|
|
#define DPRINTF(mask, str) if (ctdebug & (mask)) printf str
|
|
#else
|
|
#define DPRINTF(mask, str) /* nothing */
|
|
#endif
|
|
|
|
struct ct_softc {
|
|
device_t sc_dev;
|
|
|
|
gpib_chipset_tag_t sc_ic;
|
|
gpib_handle_t sc_hdl;
|
|
|
|
int sc_slave; /* GPIB slave ID */
|
|
int sc_punit; /* physical unit */
|
|
struct ct_iocmd sc_ioc;
|
|
struct ct_rscmd sc_rsc;
|
|
struct cs80_stat sc_stat;
|
|
struct bufq_state *sc_tab;
|
|
int sc_active;
|
|
struct buf *sc_bp;
|
|
struct buf sc_bufstore; /* XXX */
|
|
int sc_blkno;
|
|
int sc_cmd;
|
|
int sc_resid;
|
|
char *sc_addr;
|
|
int sc_flags;
|
|
#define CTF_OPEN 0x01
|
|
#define CTF_ALIVE 0x02
|
|
#define CTF_WRT 0x04
|
|
#define CTF_CMD 0x08
|
|
#define CTF_IO 0x10
|
|
#define CTF_BEOF 0x20
|
|
#define CTF_AEOF 0x40
|
|
#define CTF_EOT 0x80
|
|
#define CTF_STATWAIT 0x100
|
|
#define CTF_CANSTREAM 0x200
|
|
#define CTF_WRTTN 0x400
|
|
short sc_type;
|
|
tpr_t sc_tpr;
|
|
int sc_eofp;
|
|
int sc_eofs[EOFS];
|
|
};
|
|
|
|
int ctmatch(device_t, cfdata_t, void *);
|
|
void ctattach(device_t, device_t, void *);
|
|
|
|
CFATTACH_DECL_NEW(ct, sizeof(struct ct_softc),
|
|
ctmatch, ctattach, NULL, NULL);
|
|
|
|
int ctident(device_t, struct ct_softc *,
|
|
struct cs80bus_attach_args *);
|
|
|
|
int ctlookup(int, int, int);
|
|
void ctaddeof(struct ct_softc *);
|
|
void ctustart(struct ct_softc *);
|
|
void cteof(struct ct_softc *, struct buf *);
|
|
void ctdone(struct ct_softc *, struct buf *);
|
|
|
|
void ctcallback(void *, int);
|
|
void ctstart(struct ct_softc *);
|
|
void ctintr(struct ct_softc *);
|
|
|
|
void ctcommand(dev_t, int, int);
|
|
|
|
dev_type_open(ctopen);
|
|
dev_type_close(ctclose);
|
|
dev_type_read(ctread);
|
|
dev_type_write(ctwrite);
|
|
dev_type_ioctl(ctioctl);
|
|
dev_type_strategy(ctstrategy);
|
|
|
|
const struct bdevsw ct_bdevsw = {
|
|
.d_open = ctopen,
|
|
.d_close = ctclose,
|
|
.d_strategy = ctstrategy,
|
|
.d_ioctl = ctioctl,
|
|
.d_dump = nodump,
|
|
.d_psize = nosize,
|
|
.d_discard = nodiscard,
|
|
.d_flag = D_TAPE
|
|
};
|
|
|
|
const struct cdevsw ct_cdevsw = {
|
|
.d_open = ctopen,
|
|
.d_close = ctclose,
|
|
.d_read = ctread,
|
|
.d_write = ctwrite,
|
|
.d_ioctl = ctioctl,
|
|
.d_stop = nostop,
|
|
.d_tty = notty,
|
|
.d_poll = nopoll,
|
|
.d_mmap = nommap,
|
|
.d_kqfilter = nokqfilter,
|
|
.d_discard = nodiscard,
|
|
.d_flag = D_TAPE
|
|
};
|
|
|
|
extern struct cfdriver ct_cd;
|
|
|
|
struct ctinfo {
|
|
short hwid;
|
|
short punit;
|
|
const char *desc;
|
|
} ctinfo[] = {
|
|
{ CT7946ID, 1, "7946A" },
|
|
{ CT7912PID, 1, "7912P" },
|
|
{ CT7914PID, 1, "7914P" },
|
|
{ CT9144ID, 0, "9144" },
|
|
{ CT9145ID, 0, "9145" },
|
|
{ CT35401ID, 0, "35401A"},
|
|
};
|
|
int nctinfo = sizeof(ctinfo) / sizeof(ctinfo[0]);
|
|
|
|
#define CT_NOREW 4
|
|
#define CT_STREAM 8
|
|
#define CTUNIT(x) (minor(x) & 0x03)
|
|
|
|
int
|
|
ctlookup(int id, int slave, int punit)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nctinfo; i++)
|
|
if (ctinfo[i].hwid == id)
|
|
break;
|
|
if (i == nctinfo)
|
|
return (-1);
|
|
return (i);
|
|
}
|
|
|
|
int
|
|
ctmatch(device_t parent, cfdata_t match, void *aux)
|
|
{
|
|
struct cs80bus_attach_args *ca = aux;
|
|
int i;
|
|
|
|
if ((i = ctlookup(ca->ca_id, ca->ca_slave, ca->ca_punit)) < 0)
|
|
return (0);
|
|
ca->ca_punit = ctinfo[i].punit;
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
ctattach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct ct_softc *sc = device_private(self);
|
|
struct cs80bus_attach_args *ca = aux;
|
|
struct cs80_description csd;
|
|
char name[7];
|
|
int type, i, n, canstream = 0;
|
|
|
|
sc->sc_ic = ca->ca_ic;
|
|
sc->sc_slave = ca->ca_slave;
|
|
sc->sc_punit = ca->ca_punit;
|
|
|
|
if ((type = ctlookup(ca->ca_id, ca->ca_slave, ca->ca_punit)) < 0)
|
|
return;
|
|
|
|
if (cs80reset(parent, sc->sc_slave, sc->sc_punit)) {
|
|
aprint_normal("\n");
|
|
aprint_error_dev(sc->sc_dev, "can't reset device\n");
|
|
return;
|
|
}
|
|
|
|
if (cs80describe(parent, sc->sc_slave, sc->sc_punit, &csd)) {
|
|
aprint_normal("\n");
|
|
aprint_error_dev(sc->sc_dev,
|
|
"didn't respond to describe command\n");
|
|
return;
|
|
}
|
|
memset(name, 0, sizeof(name));
|
|
for (i=0, n=0; i<3; i++) {
|
|
name[n++] = (csd.d_name[i] >> 4) + '0';
|
|
name[n++] = (csd.d_name[i] & 0x0f) + '0';
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (ctdebug & CDB_IDENT) {
|
|
printf("\n%s: name: ('%s')\n",
|
|
device_xname(sc->sc_dev),name);
|
|
printf(" iuw %x, maxxfr %d, ctype %d\n",
|
|
csd.d_iuw, csd.d_cmaxxfr, csd.d_ctype);
|
|
printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n",
|
|
csd.d_utype, csd.d_sectsize,
|
|
csd.d_blkbuf, csd.d_burstsize, csd.d_blocktime);
|
|
printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n",
|
|
csd.d_uavexfr, csd.d_retry, csd.d_access,
|
|
csd.d_maxint, csd.d_fvbyte, csd.d_rvbyte);
|
|
printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n",
|
|
csd.d_maxcylhead >> 8 , csd.d_maxcylhead & 0xff,
|
|
csd.d_maxsect, csd.d_maxvsectl, csd.d_interleave);
|
|
printf("%s", device_xname(sc->sc_dev));
|
|
}
|
|
#endif
|
|
|
|
switch (ca->ca_id) {
|
|
case CT7946ID:
|
|
if (memcmp(name, "079450", 6) == 0)
|
|
return; /* not really a 7946 */
|
|
/* fall into... */
|
|
case CT9144ID:
|
|
case CT9145ID:
|
|
case CT35401ID:
|
|
sc->sc_type = CT9144;
|
|
canstream = 1;
|
|
break;
|
|
|
|
case CT7912PID:
|
|
case CT7914PID:
|
|
sc->sc_type = CT88140;
|
|
break;
|
|
default:
|
|
sc->sc_type = type;
|
|
break;
|
|
}
|
|
|
|
sc->sc_type = type;
|
|
sc->sc_flags = canstream ? CTF_CANSTREAM : 0;
|
|
printf(": %s %stape\n", ctinfo[type].desc,
|
|
canstream ? "streaming " : "");
|
|
|
|
bufq_alloc(&sc->sc_tab, "fcfs", 0);
|
|
|
|
if (gpibregister(sc->sc_ic, sc->sc_slave, ctcallback, sc,
|
|
&sc->sc_hdl)) {
|
|
aprint_error_dev(sc->sc_dev, "can't register callback\n");
|
|
return;
|
|
}
|
|
|
|
sc->sc_flags |= CTF_ALIVE;
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
int
|
|
ctopen(dev_t dev, int flag, int type, struct lwp *l)
|
|
{
|
|
struct ct_softc *sc;
|
|
u_int8_t opt;
|
|
|
|
sc = device_lookup_private(&ct_cd, CTUNIT(dev));
|
|
if (sc == NULL || (sc->sc_flags & CTF_ALIVE) == 0)
|
|
return (ENXIO);
|
|
|
|
if (sc->sc_flags & CTF_OPEN)
|
|
return (EBUSY);
|
|
|
|
if ((dev & CT_STREAM) && (sc->sc_flags & CTF_CANSTREAM))
|
|
opt = C_SPAR | C_IMRPT;
|
|
else
|
|
opt = C_SPAR;
|
|
|
|
if (cs80setoptions(device_parent(sc->sc_dev), sc->sc_slave,
|
|
sc->sc_punit, opt))
|
|
return (EBUSY);
|
|
|
|
sc->sc_tpr = tprintf_open(l->l_proc);
|
|
sc->sc_flags |= CTF_OPEN;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
int
|
|
ctclose(dev_t dev, int flag, int fmt, struct lwp *l)
|
|
{
|
|
struct ct_softc *sc;
|
|
|
|
sc = device_lookup_private(&ct_cd, CTUNIT(dev));
|
|
if (sc == NULL)
|
|
return (ENXIO);
|
|
|
|
if ((sc->sc_flags & (CTF_WRT|CTF_WRTTN)) == (CTF_WRT|CTF_WRTTN) &&
|
|
(sc->sc_flags & CTF_EOT) == 0 ) { /* XXX return error if EOT ?? */
|
|
ctcommand(dev, MTWEOF, 2);
|
|
ctcommand(dev, MTBSR, 1);
|
|
if (sc->sc_eofp == EOFS - 1)
|
|
sc->sc_eofs[EOFS - 1]--;
|
|
else
|
|
sc->sc_eofp--;
|
|
DPRINTF(CDB_BSF, ("%s: ctclose backup eofs prt %d blk %d\n",
|
|
device_xname(sc->sc_dev), sc->sc_eofp,
|
|
sc->sc_eofs[sc->sc_eofp]));
|
|
}
|
|
|
|
if ((minor(dev) & CT_NOREW) == 0)
|
|
ctcommand(dev, MTREW, 1);
|
|
sc->sc_flags &= ~(CTF_OPEN | CTF_WRT | CTF_WRTTN);
|
|
tprintf_close(sc->sc_tpr);
|
|
DPRINTF(CDB_FILES, ("ctclose: flags %x\n", sc->sc_flags));
|
|
|
|
return (0); /* XXX */
|
|
}
|
|
|
|
void
|
|
ctcommand(dev_t dev, int cmd, int cnt)
|
|
{
|
|
struct ct_softc *sc;
|
|
struct buf *bp;
|
|
struct buf *nbp = 0;
|
|
|
|
sc = device_lookup_private(&ct_cd, CTUNIT(dev));
|
|
bp = &sc->sc_bufstore;
|
|
|
|
DPRINTF(CDB_FOLLOW, ("ctcommand: called\n"));
|
|
|
|
if (cmd == MTBSF && sc->sc_eofp == EOFS - 1) {
|
|
cnt = sc->sc_eofs[EOFS - 1] - cnt;
|
|
ctcommand(dev, MTREW, 1);
|
|
ctcommand(dev, MTFSF, cnt);
|
|
cnt = 2;
|
|
cmd = MTBSR;
|
|
}
|
|
|
|
if (cmd == MTBSF && sc->sc_eofp - cnt < 0) {
|
|
cnt = 1;
|
|
cmd = MTREW;
|
|
}
|
|
|
|
sc->sc_flags |= CTF_CMD;
|
|
sc->sc_bp = bp;
|
|
sc->sc_cmd = cmd;
|
|
bp->b_dev = dev;
|
|
bp->b_objlock = &buffer_lock;
|
|
if (cmd == MTFSF) {
|
|
nbp = (struct buf *)geteblk(MAXBSIZE);
|
|
bp->b_data = nbp->b_data;
|
|
bp->b_bcount = MAXBSIZE;
|
|
}
|
|
|
|
while (cnt-- > 0) {
|
|
bp->b_flags = 0;
|
|
bp->b_cflags = BC_BUSY;
|
|
bp->b_oflags = 0;
|
|
if (cmd == MTBSF) {
|
|
sc->sc_blkno = sc->sc_eofs[sc->sc_eofp];
|
|
sc->sc_eofp--;
|
|
DPRINTF(CDB_BSF, ("%s: backup eof pos %d blk %d\n",
|
|
device_xname(sc->sc_dev), sc->sc_eofp,
|
|
sc->sc_eofs[sc->sc_eofp]));
|
|
}
|
|
ctstrategy(bp);
|
|
biowait(bp);
|
|
}
|
|
bp->b_flags = 0;
|
|
sc->sc_flags &= ~CTF_CMD;
|
|
if (nbp)
|
|
brelse(nbp, 0);
|
|
}
|
|
|
|
void
|
|
ctstrategy(struct buf *bp)
|
|
{
|
|
struct ct_softc *sc;
|
|
int s;
|
|
|
|
DPRINTF(CDB_FOLLOW, ("cdstrategy(%p): dev %" PRIx64 ", bn %" PRIx64
|
|
", bcount %x, %c\n",
|
|
bp, bp->b_dev, bp->b_blkno, bp->b_bcount,
|
|
(bp->b_flags & B_READ) ? 'R' : 'W'));
|
|
|
|
sc = device_lookup_private(&ct_cd, CTUNIT(bp->b_dev));
|
|
|
|
s = splbio();
|
|
bufq_put(sc->sc_tab, bp);
|
|
if (sc->sc_active == 0) {
|
|
sc->sc_active = 1;
|
|
ctustart(sc);
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
void
|
|
ctustart(struct ct_softc *sc)
|
|
{
|
|
struct buf *bp;
|
|
|
|
bp = bufq_peek(sc->sc_tab);
|
|
sc->sc_addr = bp->b_data;
|
|
sc->sc_resid = bp->b_bcount;
|
|
if (gpibrequest(sc->sc_ic, sc->sc_hdl))
|
|
ctstart(sc);
|
|
}
|
|
|
|
void
|
|
ctstart(struct ct_softc *sc)
|
|
{
|
|
struct buf *bp;
|
|
struct ct_ulcmd ul;
|
|
struct ct_wfmcmd wfm;
|
|
int i, slave, punit;
|
|
|
|
slave = sc->sc_slave;
|
|
punit = sc->sc_punit;
|
|
|
|
bp = bufq_peek(sc->sc_tab);
|
|
if ((sc->sc_flags & CTF_CMD) && sc->sc_bp == bp) {
|
|
switch(sc->sc_cmd) {
|
|
case MTFSF:
|
|
bp->b_flags |= B_READ;
|
|
goto mustio;
|
|
|
|
case MTBSF:
|
|
goto gotaddr;
|
|
|
|
case MTOFFL:
|
|
sc->sc_blkno = 0;
|
|
ul.unit = CS80CMD_SUNIT(punit);
|
|
ul.cmd = CS80CMD_UNLOAD;
|
|
(void) cs80send(device_parent(sc->sc_dev), slave,
|
|
punit, CS80CMD_SCMD, &ul, sizeof(ul));
|
|
break;
|
|
|
|
case MTWEOF:
|
|
sc->sc_blkno++;
|
|
sc->sc_flags |= CTF_WRT;
|
|
wfm.unit = CS80CMD_SUNIT(sc->sc_punit);
|
|
wfm.cmd = CS80CMD_WFM;
|
|
(void) cs80send(device_parent(sc->sc_dev), slave,
|
|
punit, CS80CMD_SCMD, &wfm, sizeof(wfm));
|
|
ctaddeof(sc);
|
|
break;
|
|
|
|
case MTBSR:
|
|
sc->sc_blkno--;
|
|
goto gotaddr;
|
|
|
|
case MTFSR:
|
|
sc->sc_blkno++;
|
|
goto gotaddr;
|
|
|
|
case MTREW:
|
|
sc->sc_blkno = 0;
|
|
DPRINTF(CDB_BSF, ("%s: clearing eofs\n",
|
|
device_xname(sc->sc_dev)));
|
|
for (i=0; i<EOFS; i++)
|
|
sc->sc_eofs[i] = 0;
|
|
sc->sc_eofp = 0;
|
|
|
|
gotaddr:
|
|
sc->sc_ioc.unit = CS80CMD_SUNIT(sc->sc_punit);
|
|
sc->sc_ioc.saddr = CS80CMD_SADDR;
|
|
sc->sc_ioc.addr0 = 0;
|
|
sc->sc_ioc.addr = htobe32(sc->sc_blkno);
|
|
sc->sc_ioc.nop2 = CS80CMD_NOP;
|
|
sc->sc_ioc.slen = CS80CMD_SLEN;
|
|
sc->sc_ioc.len = htobe32(0);
|
|
sc->sc_ioc.nop3 = CS80CMD_NOP;
|
|
sc->sc_ioc.cmd = CS80CMD_READ;
|
|
(void) cs80send(device_parent(sc->sc_dev), slave,
|
|
punit, CS80CMD_SCMD, &sc->sc_ioc,
|
|
sizeof(sc->sc_ioc));
|
|
break;
|
|
}
|
|
} else {
|
|
mustio:
|
|
if ((bp->b_flags & B_READ) &&
|
|
sc->sc_flags & (CTF_BEOF|CTF_EOT)) {
|
|
DPRINTF(CDB_FILES, ("ctstart: before %x\n",
|
|
sc->sc_flags));
|
|
if (sc->sc_flags & CTF_BEOF) {
|
|
sc->sc_flags &= ~CTF_BEOF;
|
|
sc->sc_flags |= CTF_AEOF;
|
|
DPRINTF(CDB_FILES, ("ctstart: after %x\n",
|
|
sc->sc_flags));
|
|
}
|
|
bp->b_resid = bp->b_bcount;
|
|
ctdone(sc, bp);
|
|
return;
|
|
}
|
|
sc->sc_flags |= CTF_IO;
|
|
sc->sc_ioc.unit = CS80CMD_SUNIT(sc->sc_punit);
|
|
sc->sc_ioc.saddr = CS80CMD_SADDR;
|
|
sc->sc_ioc.addr0 = 0;
|
|
sc->sc_ioc.addr = htobe32(sc->sc_blkno);
|
|
sc->sc_ioc.nop2 = CS80CMD_NOP;
|
|
sc->sc_ioc.slen = CS80CMD_SLEN;
|
|
sc->sc_ioc.len = htobe32(sc->sc_resid);
|
|
sc->sc_ioc.nop3 = CS80CMD_NOP;
|
|
if (bp->b_flags & B_READ)
|
|
sc->sc_ioc.cmd = CS80CMD_READ;
|
|
else {
|
|
sc->sc_ioc.cmd = CS80CMD_WRITE;
|
|
sc->sc_flags |= (CTF_WRT | CTF_WRTTN);
|
|
}
|
|
(void) cs80send(device_parent(sc->sc_dev), slave, punit,
|
|
CS80CMD_SCMD, &sc->sc_ioc, sizeof(sc->sc_ioc));
|
|
}
|
|
gpibawait(sc->sc_ic);
|
|
}
|
|
|
|
/*
|
|
* Hideous grue to handle EOF/EOT (mostly for reads)
|
|
*/
|
|
void
|
|
cteof(struct ct_softc *sc, struct buf *bp)
|
|
{
|
|
long blks;
|
|
|
|
/*
|
|
* EOT on a write is an error.
|
|
*/
|
|
if ((bp->b_flags & B_READ) == 0) {
|
|
bp->b_resid = bp->b_bcount;
|
|
bp->b_error = ENOSPC;
|
|
sc->sc_flags |= CTF_EOT;
|
|
return;
|
|
}
|
|
/*
|
|
* Use returned block position to determine how many blocks
|
|
* we really read and update b_resid.
|
|
*/
|
|
blks = sc->sc_stat.c_blk - sc->sc_blkno - 1;
|
|
DPRINTF(CDB_FILES,
|
|
("cteof: bc %d oblk %d nblk %d read %ld, resid %ld\n",
|
|
bp->b_bcount, sc->sc_blkno, sc->sc_stat.c_blk,
|
|
blks, bp->b_bcount - CTKTOB(blks)));
|
|
if (blks == -1) { /* 9145 on EOF does not change sc_stat.c_blk */
|
|
blks = 0;
|
|
sc->sc_blkno++;
|
|
} else {
|
|
sc->sc_blkno = sc->sc_stat.c_blk;
|
|
}
|
|
bp->b_resid = bp->b_bcount - CTKTOB(blks);
|
|
/*
|
|
* If we are at physical EOV or were after an EOF,
|
|
* we are now at logical EOT.
|
|
*/
|
|
if ((sc->sc_stat.c_aef & AEF_EOV) ||
|
|
(sc->sc_flags & CTF_AEOF)) {
|
|
sc->sc_flags |= CTF_EOT;
|
|
sc->sc_flags &= ~(CTF_AEOF|CTF_BEOF);
|
|
}
|
|
/*
|
|
* If we were before an EOF or we have just completed a FSF,
|
|
* we are now after EOF.
|
|
*/
|
|
else if ((sc->sc_flags & CTF_BEOF) ||
|
|
((sc->sc_flags & CTF_CMD) && sc->sc_cmd == MTFSF)) {
|
|
sc->sc_flags |= CTF_AEOF;
|
|
sc->sc_flags &= ~CTF_BEOF;
|
|
}
|
|
/*
|
|
* Otherwise if we read something we are now before EOF
|
|
* (and no longer after EOF).
|
|
*/
|
|
else if (blks) {
|
|
sc->sc_flags |= CTF_BEOF;
|
|
sc->sc_flags &= ~CTF_AEOF;
|
|
}
|
|
/*
|
|
* Finally, if we didn't read anything we just passed an EOF
|
|
*/
|
|
else
|
|
sc->sc_flags |= CTF_AEOF;
|
|
DPRINTF(CDB_FILES, ("cteof: leaving flags %x\n", sc->sc_flags));
|
|
}
|
|
|
|
|
|
void
|
|
ctcallback(void *v, int action)
|
|
{
|
|
struct ct_softc *sc = v;
|
|
|
|
DPRINTF(CDB_FOLLOW, ("ctcallback: v=%p, action=%d\n", v, action));
|
|
|
|
switch (action) {
|
|
case GPIBCBF_START:
|
|
ctstart(sc);
|
|
break;
|
|
case GPIBCBF_INTR:
|
|
ctintr(sc);
|
|
break;
|
|
#ifdef DEBUG
|
|
default:
|
|
DPRINTF(CDB_FAIL, ("ctcallback: unknown action %d\n", action));
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void
|
|
ctintr(struct ct_softc *sc)
|
|
{
|
|
struct buf *bp;
|
|
u_int8_t stat;
|
|
int slave, punit;
|
|
int dir;
|
|
|
|
slave = sc->sc_slave;
|
|
punit = sc->sc_punit;
|
|
|
|
bp = bufq_peek(sc->sc_tab);
|
|
if (bp == NULL) {
|
|
aprint_error_dev(sc->sc_dev, "bp == NULL\n");
|
|
return;
|
|
}
|
|
if (sc->sc_flags & CTF_IO) {
|
|
sc->sc_flags &= ~CTF_IO;
|
|
dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE);
|
|
gpibxfer(sc->sc_ic, slave, CS80CMD_EXEC, sc->sc_addr,
|
|
sc->sc_resid, dir, dir == GPIB_READ);
|
|
return;
|
|
}
|
|
if ((sc->sc_flags & CTF_STATWAIT) == 0) {
|
|
if (gpibpptest(sc->sc_ic, slave) == 0) {
|
|
sc->sc_flags |= CTF_STATWAIT;
|
|
gpibawait(sc->sc_ic);
|
|
return;
|
|
}
|
|
} else
|
|
sc->sc_flags &= ~CTF_STATWAIT;
|
|
(void) gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1);
|
|
DPRINTF(CDB_FILES, ("ctintr: before flags %x\n", sc->sc_flags));
|
|
if (stat) {
|
|
sc->sc_rsc.unit = CS80CMD_SUNIT(punit);
|
|
sc->sc_rsc.cmd = CS80CMD_STATUS;
|
|
(void) gpibsend(sc->sc_ic, slave, CS80CMD_SCMD, &sc->sc_rsc,
|
|
sizeof(sc->sc_rsc));
|
|
(void) gpibrecv(sc->sc_ic, slave, CS80CMD_EXEC, &sc->sc_stat,
|
|
sizeof(sc->sc_stat));
|
|
(void) gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1);
|
|
DPRINTF(CDB_FILES,
|
|
("ctintr: return stat 0x%x, A%x F%x blk %d\n",
|
|
stat, sc->sc_stat.c_aef,
|
|
sc->sc_stat.c_fef, sc->sc_stat.c_blk));
|
|
if (stat == 0) {
|
|
if (sc->sc_stat.c_aef & (AEF_EOF | AEF_EOV)) {
|
|
cteof(sc, bp);
|
|
ctaddeof(sc);
|
|
goto done;
|
|
}
|
|
if (sc->sc_stat.c_fef & FEF_PF) {
|
|
cs80reset(sc, slave, punit);
|
|
ctstart(sc);
|
|
return;
|
|
}
|
|
if (sc->sc_stat.c_fef & FEF_REXMT) {
|
|
ctstart(sc);
|
|
return;
|
|
}
|
|
if (sc->sc_stat.c_aef & 0x5800) {
|
|
if (sc->sc_stat.c_aef & 0x4000)
|
|
tprintf(sc->sc_tpr,
|
|
"%s: uninitialized media\n",
|
|
device_xname(sc->sc_dev));
|
|
if (sc->sc_stat.c_aef & 0x1000)
|
|
tprintf(sc->sc_tpr,
|
|
"%s: not ready\n",
|
|
device_xname(sc->sc_dev));
|
|
if (sc->sc_stat.c_aef & 0x0800)
|
|
tprintf(sc->sc_tpr,
|
|
"%s: write protect\n",
|
|
device_xname(sc->sc_dev));
|
|
} else {
|
|
printf("%s err: v%d u%d ru%d bn%d, ",
|
|
device_xname(sc->sc_dev),
|
|
(sc->sc_stat.c_vu>>4)&0xF,
|
|
sc->sc_stat.c_vu&0xF,
|
|
sc->sc_stat.c_pend,
|
|
sc->sc_stat.c_blk);
|
|
printf("R0x%x F0x%x A0x%x I0x%x\n",
|
|
sc->sc_stat.c_ref,
|
|
sc->sc_stat.c_fef,
|
|
sc->sc_stat.c_aef,
|
|
sc->sc_stat.c_ief);
|
|
}
|
|
} else
|
|
aprint_error_dev(sc->sc_dev, "request status failed\n");
|
|
bp->b_error = EIO;
|
|
goto done;
|
|
} else
|
|
bp->b_resid = 0;
|
|
if (sc->sc_flags & CTF_CMD) {
|
|
switch (sc->sc_cmd) {
|
|
case MTFSF:
|
|
sc->sc_flags &= ~(CTF_BEOF|CTF_AEOF);
|
|
sc->sc_blkno += CTBTOK(sc->sc_resid);
|
|
ctstart(sc);
|
|
return;
|
|
case MTBSF:
|
|
sc->sc_flags &= ~(CTF_AEOF|CTF_BEOF|CTF_EOT);
|
|
break;
|
|
case MTBSR:
|
|
sc->sc_flags &= ~CTF_BEOF;
|
|
if (sc->sc_flags & CTF_EOT) {
|
|
sc->sc_flags |= CTF_AEOF;
|
|
sc->sc_flags &= ~CTF_EOT;
|
|
} else if (sc->sc_flags & CTF_AEOF) {
|
|
sc->sc_flags |= CTF_BEOF;
|
|
sc->sc_flags &= ~CTF_AEOF;
|
|
}
|
|
break;
|
|
case MTWEOF:
|
|
sc->sc_flags &= ~CTF_BEOF;
|
|
if (sc->sc_flags & (CTF_AEOF|CTF_EOT)) {
|
|
sc->sc_flags |= CTF_EOT;
|
|
sc->sc_flags &= ~CTF_AEOF;
|
|
} else
|
|
sc->sc_flags |= CTF_AEOF;
|
|
break;
|
|
case MTREW:
|
|
case MTOFFL:
|
|
sc->sc_flags &= ~(CTF_BEOF|CTF_AEOF|CTF_EOT);
|
|
break;
|
|
}
|
|
} else {
|
|
sc->sc_flags &= ~CTF_AEOF;
|
|
sc->sc_blkno += CTBTOK(sc->sc_resid);
|
|
}
|
|
done:
|
|
DPRINTF(CDB_FILES, ("ctintr: after flags %x\n", sc->sc_flags));
|
|
ctdone(sc, bp);
|
|
}
|
|
|
|
void
|
|
ctdone(struct ct_softc *sc, struct buf *bp)
|
|
{
|
|
|
|
(void)bufq_get(sc->sc_tab);
|
|
biodone(bp);
|
|
gpibrelease(sc->sc_ic, sc->sc_hdl);
|
|
if (bufq_peek(sc->sc_tab) == NULL) {
|
|
sc->sc_active = 0;
|
|
return;
|
|
}
|
|
ctustart(sc);
|
|
}
|
|
|
|
int
|
|
ctread(dev_t dev, struct uio *uio, int flags)
|
|
{
|
|
return (physio(ctstrategy, NULL, dev, B_READ, minphys, uio));
|
|
}
|
|
|
|
int
|
|
ctwrite(dev_t dev, struct uio *uio, int flags)
|
|
{
|
|
/* XXX: check for hardware write-protect? */
|
|
return (physio(ctstrategy, NULL, dev, B_WRITE, minphys, uio));
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
int
|
|
ctioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
|
|
{
|
|
struct mtop *op;
|
|
int cnt;
|
|
|
|
switch (cmd) {
|
|
|
|
case MTIOCTOP:
|
|
op = (struct mtop *)data;
|
|
switch(op->mt_op) {
|
|
|
|
case MTWEOF:
|
|
case MTFSF:
|
|
case MTBSR:
|
|
case MTBSF:
|
|
case MTFSR:
|
|
cnt = op->mt_count;
|
|
break;
|
|
|
|
case MTREW:
|
|
case MTOFFL:
|
|
cnt = 1;
|
|
break;
|
|
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
ctcommand(dev, op->mt_op, cnt);
|
|
break;
|
|
|
|
case MTIOCGET:
|
|
break;
|
|
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ctaddeof(struct ct_softc *sc)
|
|
{
|
|
|
|
if (sc->sc_eofp == EOFS - 1)
|
|
sc->sc_eofs[EOFS - 1]++;
|
|
else {
|
|
sc->sc_eofp++;
|
|
if (sc->sc_eofp == EOFS - 1)
|
|
sc->sc_eofs[EOFS - 1] = EOFS;
|
|
else
|
|
/* save blkno */
|
|
sc->sc_eofs[sc->sc_eofp] = sc->sc_blkno - 1;
|
|
}
|
|
DPRINTF(CDB_BSF, ("%s: add eof pos %d blk %d\n",
|
|
device_xname(sc->sc_dev), sc->sc_eofp,
|
|
sc->sc_eofs[sc->sc_eofp]));
|
|
}
|