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freebsd-dev/sys/dev/firewire/firewire.c
Katsushi Kobayashi 3c60ba66c4 Initial import for IEEE1394 OHCI chipdet device driver and SBP-2 (Serial 
Bus Protocol 2:SCSI over IEEE1394) support for CAM.
2002-09-13 12:31:56 +00:00

3246 lines
78 KiB
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/*
* Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
* 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 acknowledgement as bellow:
*
* This product includes software developed by K. Kobayashi and H. Shimokawa
*
* 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.
*
* $FreeBSD$
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/sysctl.h>
#include <sys/poll.h>
#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */
#include <machine/clock.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#include <vm/vm.h>
#include <vm/pmap.h> /* for vtophys proto */
#include <vm/vm_extern.h>
#include <sys/bus.h> /* used by smbus and newbus */
#include <machine/bus.h> /* used by newbus */
#include <sys/rman.h> /* used by newbus */
#include <machine/resource.h> /* used by newbus */
#include <sys/signal.h>
#include <sys/mman.h>
#include <sys/ioccom.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/fwmem.h>
#include <dev/firewire/iec13213.h>
#include <dev/firewire/iec68113.h>
int firewire_debug=0;
SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "Firewire Subsystem");
SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
"Firewire driver debug flag");
#define CDEV_MAJOR 127
#define FW_MAXASYRTY 4
#define FW_MAXDEVRCNT 4
#define FWNODE_INVAL 0xffff
#define XFER_TIMEOUT 0
static d_open_t fw_open;
static d_close_t fw_close;
static d_ioctl_t fw_ioctl;
static d_poll_t fw_poll;
static d_read_t fw_read; /* for Isochronous packet */
static d_write_t fw_write;
static d_mmap_t fw_mmap;
devclass_t firewire_devclass;
static int firewire_match __P((device_t));
static int firewire_attach __P((device_t));
static int firewire_detach __P((device_t));
#if 0
static int firewire_shutdown __P((device_t));
#endif
static device_t firewire_add_child __P((device_t, int, const char *, int));
static struct fw_bind *fw_bindlookup __P((struct firewire_comm *, u_int32_t, u_int32_t));
static void fw_try_bmr __P((void *));
static void fw_try_bmr_callback __P((struct fw_xfer *));
static u_int16_t fw_noderesolve __P((struct firewire_comm *, struct fw_eui64));
static void fw_asystart __P((struct fw_xfer *));
static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *));
static void fw_bus_probe __P((struct firewire_comm *));
static void fw_bus_explore __P((struct firewire_comm *));
static void fw_bus_explore_callback __P((struct fw_xfer *));
static void fw_attach_dev __P((struct firewire_comm *));
static void fw_vmaccess __P((struct fw_xfer *));
struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t,
u_int32_t, u_int32_t, void __P(*)));
static device_method_t firewire_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, firewire_match),
DEVMETHOD(device_attach, firewire_attach),
DEVMETHOD(device_detach, firewire_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* Bus interface */
DEVMETHOD(bus_add_child, firewire_add_child),
DEVMETHOD(bus_print_child, bus_generic_print_child),
{ 0, 0 }
};
char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"};
u_int maxrec[6]={512,1024,2048,4096,8192,0};
#define MAX_GAPHOP 16
u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17,
20, 23, 25, 28, 31, 33, 36, 39, 42};
/*
* The probe routine.
*/
struct cdevsw firewire_cdevsw =
{
fw_open, fw_close, fw_read, fw_write, fw_ioctl,
fw_poll, fw_mmap, nostrategy, "fw", CDEV_MAJOR, nodump, nopsize, D_MEM
};
static driver_t firewire_driver = {
"firewire",
firewire_methods,
sizeof(struct firewire_softc),
};
static int
fw_open (dev_t dev, int flags, int fmt, fw_proc *td)
{
struct firewire_softc *sc;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
int err = 0;
if (DEV_FWMEM(dev))
return fwmem_open(dev, flags, fmt, td);
sc = devclass_get_softc(firewire_devclass, unit);
if(sc->fc->ir[sub]->flag & FWXFERQ_OPEN){
err = EBUSY;
return err;
}
if(sc->fc->it[sub]->flag & FWXFERQ_OPEN){
err = EBUSY;
return err;
}
if(sc->fc->ir[sub]->flag & FWXFERQ_MODEMASK){
err = EBUSY;
return err;
}
/* Default is per packet mode */
sc->fc->ir[sub]->flag |= FWXFERQ_OPEN;
sc->fc->it[sub]->flag |= FWXFERQ_OPEN;
sc->fc->ir[sub]->flag |= FWXFERQ_PACKET;
return err;
}
static int
fw_close (dev_t dev, int flags, int fmt, fw_proc *td)
{
struct firewire_softc *sc;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
struct fw_xfer *xfer;
struct fw_dvbuf *dvbuf;
struct fw_bind *fwb;
int err = 0;
if (DEV_FWMEM(dev))
return fwmem_close(dev, flags, fmt, td);
sc = devclass_get_softc(firewire_devclass, unit);
if(!(sc->fc->ir[sub]->flag & FWXFERQ_OPEN)){
err = EINVAL;
return err;
}
sc->fc->ir[sub]->flag &= ~FWXFERQ_OPEN;
if(!(sc->fc->it[sub]->flag & FWXFERQ_OPEN)){
err = EINVAL;
return err;
}
sc->fc->it[sub]->flag &= ~FWXFERQ_OPEN;
if(sc->fc->ir[sub]->flag & FWXFERQ_RUNNING){
sc->fc->irx_disable(sc->fc, sub);
}
if(sc->fc->it[sub]->flag & FWXFERQ_RUNNING){
sc->fc->it[sub]->flag &= ~FWXFERQ_RUNNING;
sc->fc->itx_disable(sc->fc, sub);
}
if(sc->fc->it[sub]->flag & FWXFERQ_DV){
if((dvbuf = sc->fc->it[sub]->dvproc) != NULL){
free(dvbuf->buf, M_DEVBUF);
sc->fc->it[sub]->dvproc = NULL;
}
if((dvbuf = sc->fc->it[sub]->dvdma) != NULL){
free(dvbuf->buf, M_DEVBUF);
sc->fc->it[sub]->dvdma = NULL;
}
while((dvbuf = STAILQ_FIRST(&sc->fc->it[sub]->dvvalid)) != NULL){
STAILQ_REMOVE_HEAD(&sc->fc->it[sub]->dvvalid, link);
free(dvbuf->buf, M_DEVBUF);
}
while((dvbuf = STAILQ_FIRST(&sc->fc->it[sub]->dvfree)) != NULL){
STAILQ_REMOVE_HEAD(&sc->fc->it[sub]->dvfree, link);
free(dvbuf->buf, M_DEVBUF);
}
free(sc->fc->it[sub]->dvbuf, M_DEVBUF);
sc->fc->it[sub]->dvbuf = NULL;
}
if(sc->fc->ir[sub]->flag & FWXFERQ_EXTBUF){
free(sc->fc->ir[sub]->buf, M_DEVBUF);
sc->fc->ir[sub]->buf = NULL;
free(sc->fc->ir[sub]->bulkxfer, M_DEVBUF);
sc->fc->ir[sub]->bulkxfer = NULL;
sc->fc->ir[sub]->flag &= ~FWXFERQ_EXTBUF;
sc->fc->ir[sub]->psize = FWPMAX_S400;
sc->fc->ir[sub]->maxq = FWMAXQUEUE;
}
if(sc->fc->it[sub]->flag & FWXFERQ_EXTBUF){
free(sc->fc->it[sub]->buf, M_DEVBUF);
sc->fc->it[sub]->buf = NULL;
free(sc->fc->it[sub]->bulkxfer, M_DEVBUF);
sc->fc->it[sub]->bulkxfer = NULL;
sc->fc->it[sub]->dvbuf = NULL;
sc->fc->it[sub]->flag &= ~FWXFERQ_EXTBUF;
sc->fc->it[sub]->psize = FWPMAX_S400;
sc->fc->it[sub]->maxq = FWMAXQUEUE;
}
for(xfer = STAILQ_FIRST(&sc->fc->ir[sub]->q);
xfer != NULL; xfer = STAILQ_FIRST(&sc->fc->ir[sub]->q)){
sc->fc->ir[sub]->queued--;
STAILQ_REMOVE_HEAD(&sc->fc->ir[sub]->q, link);
xfer->resp = 0;
switch(xfer->act_type){
case FWACT_XFER:
fw_xfer_done(xfer);
break;
default:
break;
}
fw_xfer_free(xfer);
}
for(fwb = STAILQ_FIRST(&sc->fc->ir[sub]->binds); fwb != NULL;
fwb = STAILQ_FIRST(&sc->fc->ir[sub]->binds)){
STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
STAILQ_REMOVE_HEAD(&sc->fc->ir[sub]->binds, chlist);
free(fwb, M_DEVBUF);
}
sc->fc->ir[sub]->flag &= ~FWXFERQ_MODEMASK;
sc->fc->it[sub]->flag &= ~FWXFERQ_MODEMASK;
return err;
}
/*
* read request.
*/
static int
fw_read (dev_t dev, struct uio *uio, int ioflag)
{
struct firewire_softc *sc;
struct fw_xferq *ir;
struct fw_xfer *xfer;
int err = 0, s, slept = 0;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
struct fw_pkt *fp;
if (DEV_FWMEM(dev))
return fwmem_read(dev, uio, ioflag);
sc = devclass_get_softc(firewire_devclass, unit);
ir = sc->fc->ir[sub];
if(ir->flag & FWXFERQ_PACKET){
ir->stproc = NULL;
}
readloop:
xfer = STAILQ_FIRST(&ir->q);
if(!(ir->flag & FWXFERQ_PACKET) && ir->stproc == NULL){
ir->stproc = STAILQ_FIRST(&ir->stvalid);
if(ir->stproc != NULL){
s = splfw();
STAILQ_REMOVE_HEAD(&ir->stvalid, link);
splx(s);
ir->queued = 0;
}
}
if(xfer == NULL && ir->stproc == NULL){
if(slept == 0){
slept = 1;
if(!(ir->flag & FWXFERQ_RUNNING)
&& (ir->flag & FWXFERQ_PACKET)){
err = sc->fc->irx_enable(sc->fc, sub);
}
if(err){
return err;
}
ir->flag |= FWXFERQ_WAKEUP;
err = tsleep((caddr_t)ir, FWPRI, "fw_read", hz);
if(err){
ir->flag &= ~FWXFERQ_WAKEUP;
return err;
}
goto readloop;
}else{
err = EIO;
return err;
}
}else if(xfer != NULL){
s = splfw();
ir->queued --;
STAILQ_REMOVE_HEAD(&ir->q, link);
splx(s);
fp = (struct fw_pkt *)(xfer->recv.buf + xfer->recv.off);
if(sc->fc->irx_post != NULL)
sc->fc->irx_post(sc->fc, fp->mode.ld);
err = uiomove(xfer->recv.buf + xfer->recv.off, xfer->recv.len, uio);
fw_xfer_free( xfer);
}else if(ir->stproc != NULL){
fp = (struct fw_pkt *)(ir->stproc->buf + ir->queued * ir->psize);
if(sc->fc->irx_post != NULL)
sc->fc->irx_post(sc->fc, fp->mode.ld);
if(ntohs(fp->mode.stream.len) == 0){
err = EIO;
return err;
}
err = uiomove((caddr_t)fp, ntohs(fp->mode.stream.len) + sizeof(u_int32_t), uio);
fp->mode.stream.len = 0;
ir->queued ++;
if(ir->queued >= ir->bnpacket){
s = splfw();
ir->stproc->flag = 0;
STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
splx(s);
ir->stproc = NULL;
}
}
#if 0
if(STAILQ_FIRST(&ir->q) == NULL &&
(ir->flag & FWXFERQ_RUNNING) && (ir->flag & FWXFERQ_PACKET)){
err = sc->fc->irx_enable(sc->fc, sub);
}
#endif
#if 0
if(STAILQ_FIRST(&ir->stvalid) == NULL &&
(ir->flag & FWXFERQ_RUNNING) && !(ir->flag & FWXFERQ_PACKET)){
err = sc->fc->irx_enable(sc->fc, sub);
}
#endif
return err;
}
static int
fw_write (dev_t dev, struct uio *uio, int ioflag)
{
int err = 0;
struct firewire_softc *sc;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
int tl, s, slept = 0;
struct fw_pkt *fp;
struct fw_xfer *xfer;
struct fw_xferq *xferq;
struct firewire_comm *fc;
struct fw_xferq *it;
if (DEV_FWMEM(dev))
return fwmem_write(dev, uio, ioflag);
sc = devclass_get_softc(firewire_devclass, unit);
fc = sc->fc;
it = sc->fc->it[sub];
fp = (struct fw_pkt *)uio->uio_iov->iov_base;
switch(fp->mode.common.tcode){
case FWTCODE_RREQQ:
case FWTCODE_RREQB:
case FWTCODE_LREQ:
err = EINVAL;
return err;
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
xferq = fc->atq;
break;
case FWTCODE_STREAM:
if(it->flag & FWXFERQ_PACKET){
xferq = fc->atq;
}else{
xferq = NULL;
}
break;
case FWTCODE_WRES:
case FWTCODE_RRESQ:
case FWTCODE_RRESB:
case FWTCODE_LRES:
xferq = fc->ats;
break;
default:
err = EINVAL;
return err;
}
/* Discard unsent buffered stream packet, when sending Asyrequrst */
if(xferq != NULL && it->stproc != NULL){
s = splfw();
it->stproc->flag = 0;
STAILQ_INSERT_TAIL(&it->stfree, it->stproc, link);
splx(s);
it->stproc = NULL;
}
if(xferq == NULL && !(it->flag & FWXFERQ_DV)){
isoloop:
if(it->stproc == NULL){
it->stproc = STAILQ_FIRST(&it->stfree);
if(it->stproc != NULL){
s = splfw();
STAILQ_REMOVE_HEAD(&it->stfree, link);
splx(s);
it->queued = 0;
}else if(slept == 0){
slept = 1;
err = sc->fc->itx_enable(sc->fc, sub);
if(err){
return err;
}
err = tsleep((caddr_t)it, FWPRI, "fw_write", hz);
if(err){
return err;
}
goto isoloop;
}else{
err = EIO;
return err;
}
}
fp = (struct fw_pkt *)(it->stproc->buf + it->queued * it->psize);
fp->mode.stream.len = htons(uio->uio_resid - sizeof(u_int32_t));
err = uiomove(it->stproc->buf + it->queued * it->psize,
uio->uio_resid, uio);
it->queued ++;
if(it->queued >= it->btpacket){
s = splfw();
STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
splx(s);
it->stproc = NULL;
fw_tbuf_update(sc->fc, sub, 0);
err = sc->fc->itx_enable(sc->fc, sub);
}
return err;
} if(xferq == NULL && it->flag & FWXFERQ_DV){
dvloop:
if(it->dvproc == NULL){
it->dvproc = STAILQ_FIRST(&it->dvfree);
if(it->dvproc != NULL){
s = splfw();
STAILQ_REMOVE_HEAD(&it->dvfree, link);
splx(s);
it->dvptr = 0;
}else if(slept == 0){
slept = 1;
err = sc->fc->itx_enable(sc->fc, sub);
if(err){
return err;
}
err = tsleep((caddr_t)it, FWPRI, "fw_write", hz);
if(err){
return err;
}
goto dvloop;
}else{
err = EIO;
return err;
}
}
fp = (struct fw_pkt *)(it->dvproc->buf + it->queued * it->psize);
fp->mode.stream.len = htons(uio->uio_resid - sizeof(u_int32_t));
err = uiomove(it->dvproc->buf + it->dvptr,
uio->uio_resid, uio);
it->dvptr += it->psize;
if(err){
return err;
}
if(it->dvptr >= it->psize * it->dvpacket){
s = splfw();
STAILQ_INSERT_TAIL(&it->dvvalid, it->dvproc, link);
splx(s);
it->dvproc = NULL;
err = fw_tbuf_update(sc->fc, sub, 0);
if(err){
return err;
}
err = sc->fc->itx_enable(sc->fc, sub);
}
return err;
}
if(xferq != NULL){
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->send.buf = malloc(uio->uio_resid, M_DEVBUF, M_NOWAIT);
if(xfer->send.buf == NULL){
fw_xfer_free( xfer);
err = ENOBUFS;
return err;
}
xfer->dst = ntohs(fp->mode.hdr.dst);
switch(fp->mode.common.tcode){
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
if((tl = fw_get_tlabel(fc, xfer)) == -1 ){
fw_xfer_free( xfer);
err = EAGAIN;
return err;
}
fp->mode.hdr.tlrt = tl << 2;
default:
break;
}
xfer->tl = fp->mode.hdr.tlrt >> 2;
xfer->send.len = uio->uio_resid;
xfer->send.off = 0;
xfer->tcode = fp->mode.common.tcode;
xfer->spd = 0;/* XXX: how to setup it */
xfer->fc = fc;
xfer->q = xferq;
xfer->act_type = FWACT_XFER;
xfer->act.hand = fw_asy_callback;
xfer->retry_req = fw_asybusy;
err = uiomove(xfer->send.buf, uio->uio_resid, uio);
if(err){
return err;
}
fw_asystart(xfer);
err = tsleep((caddr_t)xfer, FWPRI, "fw_write", hz);
if(xfer->resp == EBUSY)
return EBUSY;
fw_xfer_free( xfer);
return err;
}
return EINVAL;
}
/*
* transmitter buffer update.
*/
int
fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){
struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL;
struct fw_dvbuf *dvbuf = NULL;
struct fw_xferq *it;
int s, err = 0, i, j, chtag;
struct fw_pkt *fp;
u_int64_t tmpsync, dvsync;
it = fc->it[sub];
s = splfw();
if(it->stdma == NULL){
bulkxfer = STAILQ_FIRST(&it->stvalid);
}else if(flag != 0){
bulkxfer = STAILQ_FIRST(&it->stvalid);
if(bulkxfer == it->stdma){
STAILQ_REMOVE_HEAD(&it->stvalid, link);
it->stdma->flag = 0;
STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link);
if(!(it->flag & FWXFERQ_DV))
wakeup(it);
}
bulkxfer = STAILQ_FIRST(&it->stvalid);
}else{
bulkxfer = it->stdma;
}
splx(s);
if(bulkxfer != NULL){
s = splfw();
bulkxfer2 = STAILQ_NEXT(bulkxfer, link);
#if 0
if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){
bulkxfer2 = STAILQ_FIRST(&it->stfree);
STAILQ_REMOVE_HEAD(&it->stfree, link);
splx(s);
bcopy(bulkxfer->buf, bulkxfer2->buf,
it->psize * it->btpacket);
s = splfw();
STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link);
}
#endif
splx(s);
}
it->stdma = bulkxfer;
it->stdma2 = bulkxfer2;
if(it->flag & FWXFERQ_DV){
chtag = it->flag & 0xff;
dvloop:
if(it->dvdma == NULL){
dvbuf = STAILQ_FIRST(&it->dvvalid);
if(dvbuf != NULL){
s = splfw();
STAILQ_REMOVE_HEAD(&it->dvvalid, link);
it->dvdma = dvbuf;
splx(s);
it->queued = 0;
}
}
if(it->dvdma == NULL)
return err;
it->stproc = STAILQ_FIRST(&it->stfree);
if(it->stproc != NULL){
s = splfw();
STAILQ_REMOVE_HEAD(&it->stfree, link);
splx(s);
}else{
return err;
}
/*
* Insert least significant 12 bits timestamp value by computation.
* Highest significant 4 bits is insert at just before packet sending.
*/
fp = (struct fw_pkt *)(it->stproc->buf);
/* XXX: Parameter relies on NTSC type DV video */
tmpsync = 3072 * 8000 * 100 / 2997;
tmpsync *= it->dvsync;
dvsync = tmpsync;
dvsync %= 0xc00;
fp->mode.ld[2] = htonl(0x80000000 | (dvsync % 0xc00));
it->dvsync ++;
it->dvsync %= 2997;
for( i = 0, j = 0 ; i < it->dvpacket ; i++){
bcopy(it->dvdma->buf + it->queued * it->psize,
it->stproc->buf + j * it->psize, it->psize);
fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize);
fp->mode.stream.len = htons(488);
fp->mode.stream.chtag = chtag;
fp->mode.stream.tcode = FWTCODE_STREAM;
fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc);
it->dvdbc++;
it->dvdbc %= 256;
it->queued ++;
j++;
/* XXX: Parameter relies on NTSC type DV video */
#if 1
#define DVDIFF 203
#define DVFRAC 2997
#else
#define DVDIFF 127
#define DVFRAC 1875
#endif
it->dvdiff += DVDIFF;
if(it->dvdiff >= DVFRAC){
it->dvdiff %= DVFRAC;
fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize);
fp->mode.stream.len = htons(0x8);
fp->mode.stream.chtag = chtag;
fp->mode.stream.tcode = FWTCODE_STREAM;
fp->mode.ld[1] = htonl((fc->nodeid << 24) |
0x00780000 | it->dvdbc);
j++;
}
}
it->stproc->npacket = j;
s = splfw();
STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
splx(s);
if(it->queued >= it->dvpacket){
s = splfw();
STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link);
it->dvdma = NULL;
splx(s);
wakeup(it);
goto dvloop;
}
}
return err;
}
/*
* receving buffer update.
*/
int
fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){
struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL;
struct fw_xferq *ir;
int s, err = 0;
ir = fc->ir[sub];
s = splfw();
if(ir->stdma != NULL){
if(flag != 0){
STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link);
}else{
ir->stdma->flag = 0;
STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link);
}
}
if(ir->stdma2 != NULL){
bulkxfer = ir->stdma2;
bulkxfer2 = STAILQ_FIRST(&ir->stfree);
if(bulkxfer2 != NULL){
STAILQ_REMOVE_HEAD(&ir->stfree, link);
}
}else{
bulkxfer = STAILQ_FIRST(&ir->stfree);
if(bulkxfer != NULL){
STAILQ_REMOVE_HEAD(&ir->stfree, link);
bulkxfer2 = STAILQ_FIRST(&ir->stfree);
if(bulkxfer2 != NULL){
STAILQ_REMOVE_HEAD(&ir->stfree, link);
}
}else{
bulkxfer = STAILQ_FIRST(&ir->stvalid);
STAILQ_REMOVE_HEAD(&ir->stvalid, link);
}
}
splx(s);
ir->stdma = bulkxfer;
ir->stdma2 = bulkxfer2;
return err;
}
/*
* ioctl support.
*/
int
fw_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
{
struct firewire_softc *sc;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
int i, len, err = 0;
struct fw_device *fwdev;
struct fw_bind *fwb;
struct fw_xferq *ir, *it;
struct fw_xfer *xfer;
struct fw_pkt *fp;
struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
#if 0
struct fw_map_buf *map_buf = (struct fw_map_buf *)data;
#endif
struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
if (DEV_FWMEM(dev))
return fwmem_ioctl(dev, cmd, data, flag, td);
sc = devclass_get_softc(firewire_devclass, unit);
if (!data)
return(EINVAL);
switch (cmd) {
case FW_STSTREAM:
sc->fc->it[sub]->flag &= ~0xff;
sc->fc->it[sub]->flag |= (0x3f & ichreq->ch);
sc->fc->it[sub]->flag |= ((0x3 & ichreq->tag) << 6);
err = 0;
break;
case FW_GTSTREAM:
ichreq->ch = sc->fc->it[sub]->flag & 0x3f;
ichreq->tag =(sc->fc->it[sub]->flag) >> 2 & 0x3;
err = 0;
break;
case FW_SRSTREAM:
sc->fc->ir[sub]->flag &= ~0xff;
sc->fc->ir[sub]->flag |= (0x3f & ichreq->ch);
sc->fc->ir[sub]->flag |= ((0x3 & ichreq->tag) << 6);
err = sc->fc->irx_enable(sc->fc, sub);
break;
case FW_GRSTREAM:
ichreq->ch = sc->fc->ir[sub]->flag & 0x3f;
ichreq->tag =(sc->fc->ir[sub]->flag) >> 2 & 0x3;
err = 0;
break;
case FW_SSTDV:
ibufreq = (struct fw_isobufreq *)
malloc(sizeof(struct fw_isobufreq), M_DEVBUF, M_NOWAIT);
if(ibufreq == NULL){
err = ENOMEM;
break;
}
#define FWDVPACKET 250
#define FWDVPMAX 512
ibufreq->rx.nchunk = 8;
ibufreq->rx.npacket = 50;
ibufreq->rx.psize = FWDVPMAX;
ibufreq->tx.nchunk = 5;
ibufreq->tx.npacket = 300;
ibufreq->tx.psize = FWDVPMAX;
err = fw_ioctl(dev, FW_SSTBUF, (caddr_t)ibufreq, flag, td);
sc->fc->it[sub]->dvpacket = FWDVPACKET;
free(ibufreq, M_DEVBUF);
/* reserve a buffer space */
#define NDVCHUNK 8
sc->fc->it[sub]->dvproc = NULL;
sc->fc->it[sub]->dvdma = NULL;
sc->fc->it[sub]->flag |= FWXFERQ_DV;
sc->fc->it[sub]->dvbuf
= (struct fw_dvbuf *)malloc(sizeof(struct fw_dvbuf) * NDVCHUNK, M_DEVBUF, M_DONTWAIT);
STAILQ_INIT(&sc->fc->it[sub]->dvvalid);
STAILQ_INIT(&sc->fc->it[sub]->dvfree);
for( i = 0 ; i < NDVCHUNK ; i++){
sc->fc->it[sub]->dvbuf[i].buf
= malloc(FWDVPMAX * sc->fc->it[sub]->dvpacket, M_DEVBUF, M_DONTWAIT);
STAILQ_INSERT_TAIL(&sc->fc->it[sub]->dvfree,
&sc->fc->it[sub]->dvbuf[i], link);
}
break;
case FW_SSTBUF:
ir = sc->fc->ir[sub];
it = sc->fc->it[sub];
if(ir->flag & FWXFERQ_RUNNING || it->flag & FWXFERQ_RUNNING){
return(EBUSY);
}
if((ir->flag & FWXFERQ_EXTBUF) || (it->flag & FWXFERQ_EXTBUF)){
return(EBUSY);
}
if((ibufreq->rx.nchunk *
ibufreq->rx.psize * ibufreq->rx.npacket) +
(ibufreq->tx.nchunk *
ibufreq->tx.psize * ibufreq->tx.npacket) <= 0){
return(EINVAL);
}
if(ibufreq->rx.nchunk > FWSTMAXCHUNK ||
ibufreq->tx.nchunk > FWSTMAXCHUNK){
return(EINVAL);
}
ir->bulkxfer
= (struct fw_bulkxfer *)malloc(sizeof(struct fw_bulkxfer) * ibufreq->rx.nchunk, M_DEVBUF, M_DONTWAIT);
if(ir->bulkxfer == NULL){
return(ENOMEM);
}
it->bulkxfer
= (struct fw_bulkxfer *)malloc(sizeof(struct fw_bulkxfer) * ibufreq->tx.nchunk, M_DEVBUF, M_DONTWAIT);
if(it->bulkxfer == NULL){
return(ENOMEM);
}
ir->buf = malloc(
ibufreq->rx.nchunk * ibufreq->rx.npacket
* ((ibufreq->rx.psize + 3) &~3),
M_DEVBUF, M_DONTWAIT);
if(ir->buf == NULL){
free(ir->bulkxfer, M_DEVBUF);
free(it->bulkxfer, M_DEVBUF);
ir->bulkxfer = NULL;
it->bulkxfer = NULL;
it->buf = NULL;
return(ENOMEM);
}
it->buf = malloc(
ibufreq->tx.nchunk * ibufreq->tx.npacket
* ((ibufreq->tx.psize + 3) &~3),
M_DEVBUF, M_DONTWAIT);
if(it->buf == NULL){
free(ir->bulkxfer, M_DEVBUF);
free(it->bulkxfer, M_DEVBUF);
free(ir->buf, M_DEVBUF);
ir->bulkxfer = NULL;
it->bulkxfer = NULL;
it->buf = NULL;
return(ENOMEM);
}
ir->bnchunk = ibufreq->rx.nchunk;
ir->bnpacket = ibufreq->rx.npacket;
ir->btpacket = ibufreq->rx.npacket;
ir->psize = (ibufreq->rx.psize + 3) & ~3;
ir->queued = 0;
it->bnchunk = ibufreq->tx.nchunk;
it->bnpacket = ibufreq->tx.npacket;
it->btpacket = ibufreq->tx.npacket;
it->psize = (ibufreq->tx.psize + 3) & ~3;
ir->queued = 0;
it->dvdbc = 0;
it->dvdiff = 0;
it->dvsync = 0;
STAILQ_INIT(&ir->stvalid);
STAILQ_INIT(&ir->stfree);
ir->stdma = NULL;
ir->stdma2 = NULL;
ir->stproc = NULL;
STAILQ_INIT(&it->stvalid);
STAILQ_INIT(&it->stfree);
it->stdma = NULL;
it->stdma2 = NULL;
it->stproc = NULL;
for(i = 0 ; i < sc->fc->ir[sub]->bnchunk; i++){
ir->bulkxfer[i].buf =
ir->buf +
i * sc->fc->ir[sub]->bnpacket *
sc->fc->ir[sub]->psize;
ir->bulkxfer[i].flag = 0;
STAILQ_INSERT_TAIL(&ir->stfree,
&ir->bulkxfer[i], link);
ir->bulkxfer[i].npacket = ir->bnpacket;
}
for(i = 0 ; i < sc->fc->it[sub]->bnchunk; i++){
it->bulkxfer[i].buf =
it->buf +
i * sc->fc->it[sub]->bnpacket *
sc->fc->it[sub]->psize;
it->bulkxfer[i].flag = 0;
STAILQ_INSERT_TAIL(&it->stfree,
&it->bulkxfer[i], link);
it->bulkxfer[i].npacket = it->bnpacket;
}
ir->flag &= ~FWXFERQ_MODEMASK;
ir->flag |= FWXFERQ_STREAM;
ir->flag |= FWXFERQ_EXTBUF;
it->flag &= ~FWXFERQ_MODEMASK;
it->flag |= FWXFERQ_STREAM;
it->flag |= FWXFERQ_EXTBUF;
err = 0;
break;
case FW_GSTBUF:
ibufreq->rx.nchunk = sc->fc->ir[sub]->bnchunk;
ibufreq->rx.npacket = sc->fc->ir[sub]->bnpacket;
ibufreq->rx.psize = sc->fc->ir[sub]->psize;
ibufreq->tx.nchunk = sc->fc->it[sub]->bnchunk;
ibufreq->tx.npacket = sc->fc->it[sub]->bnpacket;
ibufreq->tx.psize = sc->fc->it[sub]->psize;
break;
case FW_ASYREQ:
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
fp = &asyreq->pkt;
switch (asyreq->req.type) {
case FWASREQNODE:
xfer->dst = ntohs(fp->mode.hdr.dst);
break;
case FWASREQEUI:
xfer->dst = fw_noderesolve(sc->fc, asyreq->req.dst.eui);
if(xfer->dst == FWNODE_INVAL ){
printf("%s:cannot found node\n",
device_get_nameunit(sc->fc->dev));
err = EINVAL;
goto error;
}
fp->mode.hdr.dst = htons(FWLOCALBUS | xfer->dst);
break;
case FWASRESTL:
/* XXX what's this? */
break;
case FWASREQSTREAM:
/* nothing to do */
break;
}
xfer->spd = asyreq->req.sped;
xfer->send.len = asyreq->req.len;
xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT);
if(xfer->send.buf == NULL){
return ENOMEM;
}
xfer->send.off = 0;
bcopy(fp, xfer->send.buf, xfer->send.len);
xfer->act.hand = fw_asy_callback;
err = fw_asyreq(sc->fc, sub, xfer);
if(err){
fw_xfer_free( xfer);
return err;
}
err = tsleep((caddr_t)xfer, FWPRI, "asyreq", hz);
if(err == 0){
if(asyreq->req.len >= xfer->recv.len){
asyreq->req.len = xfer->recv.len;
}else{
err = EINVAL;
}
bcopy(xfer->recv.buf + xfer->recv.off, fp, asyreq->req.len);
}
error:
fw_xfer_free( xfer);
break;
case FW_IBUSRST:
sc->fc->ibr(sc->fc);
break;
case FW_CBINDADDR:
fwb = fw_bindlookup(sc->fc,
bindreq->start.hi, bindreq->start.lo);
if(fwb == NULL){
err = EINVAL;
break;
}
STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
STAILQ_REMOVE(&sc->fc->ir[sub]->binds, fwb, fw_bind, chlist);
free(fwb, M_DEVBUF);
break;
case FW_SBINDADDR:
if(bindreq->len <= 0 ){
err = EINVAL;
break;
}
if(bindreq->start.hi > 0xffff ){
err = EINVAL;
break;
}
fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT);
if(fwb == NULL){
err = ENOMEM;
break;
}
fwb->start_hi = bindreq->start.hi;
fwb->start_lo = bindreq->start.lo;
fwb->addrlen = bindreq->len;
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->act_type = FWACT_CH;
xfer->sub = sub;
xfer->fc = sc->fc;
fwb->xfer = xfer;
err = fw_bindadd(sc->fc, fwb);
break;
case FW_GDEVLST:
i = 0;
for(fwdev = TAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
fwdev = TAILQ_NEXT(fwdev, link)){
if(i < fwdevlst->n){
fwdevlst->dst[i] = fwdev->dst;
fwdevlst->status[i] =
(fwdev->status == FWDEVATTACHED)?1:0;
fwdevlst->eui[i].hi = fwdev->eui.hi;
fwdevlst->eui[i].lo = fwdev->eui.lo;
}
i++;
}
fwdevlst->n = i;
break;
case FW_GTPMAP:
bcopy(sc->fc->topology_map, data,
(sc->fc->topology_map->crc_len + 1) * 4);
break;
case FW_GSPMAP:
/* speed_map is larger than a page */
err = copyout(sc->fc->speed_map, *(void **)data,
(sc->fc->speed_map->crc_len + 1) * 4);
break;
case FW_GCROM:
for (fwdev = TAILQ_FIRST(&sc->fc->devices); fwdev != NULL;
fwdev = TAILQ_NEXT(fwdev, link)) {
if (fwdev->eui.hi == crom_buf->eui.hi &&
fwdev->eui.lo == crom_buf->eui.lo)
break;
}
if (fwdev == NULL) {
err = FWNODE_INVAL;
break;
}
#if 0
if (fwdev->csrrom[0] >> 24 == 1)
len = 4;
else
len = (1 + ((fwdev->csrrom[0] >> 16) & 0xff)) * 4;
#else
if (fwdev->rommax < CSRROMOFF)
len = 0;
else
len = fwdev->rommax - CSRROMOFF + 4;
#endif
if (crom_buf->len < len)
len = crom_buf->len;
else
crom_buf->len = len;
err = copyout(&fwdev->csrrom[0], crom_buf->ptr, len);
break;
default:
sc->fc->ioctl (dev, cmd, data, flag, td);
break;
}
return err;
}
int
fw_poll(dev_t dev, int events, fw_proc *td)
{
int revents;
int tmp;
int unit = DEV2UNIT(dev);
int sub = DEV2DMACH(dev);
struct firewire_softc *sc;
if (DEV_FWMEM(dev))
return fwmem_poll(dev, events, td);
sc = devclass_get_softc(firewire_devclass, unit);
revents = 0;
tmp = POLLIN | POLLRDNORM;
if (events & tmp) {
if (STAILQ_FIRST(&sc->fc->ir[sub]->q) != NULL)
revents |= tmp;
else
selrecord(td, &sc->fc->ir[sub]->rsel);
}
tmp = POLLOUT | POLLWRNORM;
if (events & tmp) {
/* XXX should be fixed */
revents |= tmp;
}
return revents;
}
/*
* To lookup node id. from EUI64.
*/
u_int16_t fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui)
{
struct fw_device *fwdev;
for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL;
fwdev = TAILQ_NEXT(fwdev, link)){
if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){
break;
}
}
if(fwdev == NULL) return FWNODE_INVAL;
if(fwdev->status != FWDEVATTACHED) return FWNODE_INVAL;
return fwdev->dst;
}
/*
* Async. request procedure for userland application.
*/
int
fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
{
int err = 0;
struct fw_xferq *xferq;
int tl = 0, len;
struct fw_pkt *fp;
int tcode;
struct tcode_info *info;
if(xfer == NULL) return EINVAL;
if(xfer->send.len > fc->maxrec){
printf("send.len > maxrec\n");
return EINVAL;
}
if(xfer->act.hand == NULL){
printf("act.hand == NULL\n");
return EINVAL;
}
fp = (struct fw_pkt *)xfer->send.buf;
#if 0
switch(fp->mode.common.tcode){
case FWTCODE_STREAM:
len = ntohs(fp->mode.stream.len) + 4;
break;
case FWTCODE_RREQQ:
case FWTCODE_WRES:
case FWTCODE_PHY:
len = 12;
break;
case FWTCODE_WREQQ:
case FWTCODE_RRESQ:
len = 16;
break;
default:
len = ntohs(fp->mode.rresb.len) + 16;
break;
}
if( len > xfer->send.len ){
printf("len > send.len\n");
return EINVAL;
}
switch(fp->mode.common.tcode){
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
case FWTCODE_RREQQ:
case FWTCODE_RREQB:
case FWTCODE_LREQ:
case FWTCODE_PHY:
case FWTCODE_STREAM:
xferq = fc->atq;
break;
case FWTCODE_WRES:
case FWTCODE_RRESQ:
case FWTCODE_RRESB:
case FWTCODE_LRES:
xferq = fc->ats;
break;
default:
return EINVAL;
}
#else
tcode = fp->mode.common.tcode & 0xf;
info = &fc->tcode[tcode];
if (info->flag == 0) {
printf("invalid tcode=%d\n", tcode);
return EINVAL;
}
if (info->flag & FWTI_REQ)
xferq = fc->atq;
else
xferq = fc->ats;
len = info->hdr_len;
if (info->flag & FWTI_BLOCK_STR)
len += ntohs(fp->mode.stream.len);
else if (info->flag & FWTI_BLOCK_ASY)
len += ntohs(fp->mode.rresb.len);
if( len > xfer->send.len ){
printf("len(%d) > send.len(%d) (tcode=%d)\n",
len, xfer->send.len, tcode);
return EINVAL;
}
xfer->send.len = len;
#endif
if(xferq->start == NULL){
printf("xferq->start == NULL\n");
return EINVAL;
}
if(!(xferq->queued < xferq->maxq)){
printf("%s:Discard a packet (queued=%d)\n",
device_get_nameunit(fc->dev), xferq->queued);
return EINVAL;
}
#if 0
switch(tcode){
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
case FWTCODE_RREQQ:
case FWTCODE_RREQB:
case FWTCODE_LREQ:
if((tl = fw_get_tlabel(fc, xfer)) == -1 ){
return EIO;
}
fp->mode.hdr.tlrt = tl << 2;
break;
default:
break;
}
#else
if (info->flag & FWTI_TLABEL) {
if((tl = fw_get_tlabel(fc, xfer)) == -1 )
return EIO;
fp->mode.hdr.tlrt = tl << 2;
}
#endif
xfer->tl = tl;
xfer->tcode = tcode;
xfer->resp = 0;
xfer->fc = fc;
xfer->q = xferq;
xfer->act_type = FWACT_XFER;
xfer->retry_req = fw_asybusy;
fw_asystart(xfer);
return err;
}
/*
* Wakeup blocked process.
*/
void
fw_asy_callback(struct fw_xfer *xfer){
wakeup(xfer);
return;
}
/*
* Postpone to later retry.
*/
void fw_asybusy(struct fw_xfer *xfer){
#if 0
printf("fw_asybusy\n");
#endif
#if XFER_TIMEOUT
untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
#endif
/*
xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000);
*/
DELAY(20000);
fw_asystart(xfer);
return;
}
#if XFER_TIMEOUT
/*
* Post timeout for async. request.
*/
void
fw_xfer_timeout(void *arg)
{
int s;
struct fw_xfer *xfer;
xfer = (struct fw_xfer *)arg;
printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp);
/* XXX set error code */
s = splfw();
xfer->act.hand(xfer);
splx(s);
}
#endif
/*
* Async. request with given xfer structure.
*/
static void fw_asystart(struct fw_xfer *xfer){
struct firewire_comm *fc = xfer->fc;
int s;
if(xfer->retry++ >= fc->max_asyretry){
xfer->resp = EBUSY;
xfer->state = FWXF_BUSY;
xfer->act.hand(xfer);
return;
}
#if 0 /* XXX allow bus explore packets only after bus rest */
if (fc->status < FWBUSEXPLORE) {
xfer->resp = EAGAIN;
xfer->state = FWXF_BUSY;
if (xfer->act.hand != NULL)
xfer->act.hand(xfer);
return;
}
#endif
s = splfw();
xfer->state = FWXF_INQ;
STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
xfer->q->queued ++;
splx(s);
/* XXX just queue for mbuf */
if (xfer->mbuf == NULL)
xfer->q->start(fc);
#if XFER_TIMEOUT
if (xfer->act.hand != NULL)
xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz);
#endif
return;
}
static int
fw_mmap (dev_t dev, vm_offset_t offset, int nproto)
{
struct firewire_softc *fc;
int unit = DEV2UNIT(dev);
if (DEV_FWMEM(dev))
return fwmem_mmap(dev, offset, nproto);
fc = devclass_get_softc(firewire_devclass, unit);
return EINVAL;
}
static int
firewire_match( device_t dev )
{
device_set_desc(dev, "IEEE1394(Firewire) bus");
return -140;
}
/*
* The attach routine.
*/
static int
firewire_attach( device_t dev )
{
int i, unitmask, mn;
struct firewire_softc *sc = device_get_softc(dev);
device_t pa = device_get_parent(dev);
struct firewire_comm *fc;
dev_t d;
fc = (struct firewire_comm *)device_get_softc(pa);
sc->fc = fc;
sc->fc->dev = dev;
unitmask = UNIT2MIN(device_get_unit(dev));
if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA;
for ( i = 0 ; i < fc->nisodma ; i++ ){
mn = unitmask | i;
/* XXX device name should be improved */
d = make_dev(&firewire_cdevsw, unit2minor(mn),
UID_ROOT, GID_OPERATOR, 0770,
"fw%x", mn);
#if __FreeBSD_version >= 500000
if (i == 0)
sc->dev = d;
else
dev_depends(sc->dev, d);
#else
sc->dev[i] = d;
#endif
}
d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG),
UID_ROOT, GID_OPERATOR, 0770,
"fwmem%d", device_get_unit(dev));
#if __FreeBSD_version >= 500000
dev_depends(sc->dev, d);
#else
sc->dev[i] = d;
#endif
printf("%s: firewire bus attach\n", device_get_nameunit(sc->fc->dev));
sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10);
/* Locate our children */
bus_generic_probe(dev);
/* launch attachement of the added children */
bus_generic_attach(dev);
/* bus_reset */
fc->ibr(fc);
return 0;
}
/*
* Attach it as child.
*/
static device_t
firewire_add_child(device_t dev, int order, const char *name, int unit)
{
device_t child;
struct firewire_softc *sc;
sc = (struct firewire_softc *)device_get_softc(dev);
child = device_add_child(dev, name, unit);
if (child) {
device_set_ivars(child, sc->fc);
device_probe_and_attach(child);
}
return child;
}
/*
* Dettach it.
*/
static int
firewire_detach( device_t dev )
{
struct firewire_softc *sc;
sc = (struct firewire_softc *)device_get_softc(dev);
#if 0
printf("%s:dettach prevented", device_get_nameunit(dev));
return(EINVAL);
#endif
#if __FreeBSD_version >= 500000
destroy_dev(sc->dev);
#else
{
int j;
for (j = 0 ; j < sc->fc->nisodma + 1; j++)
destroy_dev(sc->dev[j]);
}
#endif
/* XXX xfree_free and untimeout on all xfers */
untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle);
free(sc->fc->topology_map, M_DEVBUF);
free(sc->fc->speed_map, M_DEVBUF);
bus_generic_detach(dev);
return(0);
}
#if 0
static int
firewire_shutdown( device_t dev )
{
return 0;
}
#endif
/*
* Call ater bus reset.
*/
void fw_busreset(struct firewire_comm *fc)
{
int i;
struct fw_xfer *xfer;
switch(fc->status){
case FWBUSMGRELECT:
untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle);
break;
default:
break;
}
fc->status = FWBUSRESET;
/* XXX: discard all queued packet */
while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){
STAILQ_REMOVE_HEAD(&fc->atq->q, link);
xfer->resp = EAGAIN;
switch(xfer->act_type){
case FWACT_XFER:
fw_xfer_done(xfer);
break;
default:
break;
}
fw_xfer_free( xfer);
}
while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){
STAILQ_REMOVE_HEAD(&fc->ats->q, link);
xfer->resp = EAGAIN;
switch(xfer->act_type){
case FWACT_XFER:
fw_xfer_done(xfer);
default:
break;
}
fw_xfer_free( xfer);
}
for(i = 0; i < fc->nisodma; i++)
while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){
STAILQ_REMOVE_HEAD(&fc->it[i]->q, link);
xfer->resp = 0;
switch(xfer->act_type){
case FWACT_XFER:
fw_xfer_done(xfer);
break;
default:
break;
}
fw_xfer_free( xfer);
}
CSRARC(fc, STATE_CLEAR)
= 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
CSRARC(fc, NODE_IDS) = 0x3f;
CSRARC(fc, TOPO_MAP + 8) = 0;
fc->irm = -1;
fc->max_node = -1;
for(i = 2; i < 0x100/4 - 2 ; i++){
CSRARC(fc, SPED_MAP + i * 4) = 0;
}
CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ;
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
CSRARC(fc, RESET_START) = 0;
CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
CSRARC(fc, CYCLE_TIME) = 0x0;
CSRARC(fc, BUS_TIME) = 0x0;
CSRARC(fc, BUS_MGR_ID) = 0x3f;
CSRARC(fc, BANDWIDTH_AV) = 4915;
CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
CSRARC(fc, IP_CHANNELS) = (1 << 31);
CSRARC(fc, CONF_ROM) = 0x04 << 24;
CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
1 << 28 | 0xff << 16 | 0x09 << 8;
CSRARC(fc, CONF_ROM + 0xc) = 0;
/* DV depend CSRs see blue book */
CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 );
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
}
/* Call once after reboot */
void fw_init(fc)
struct firewire_comm *fc;
{
int i;
struct fw_xfer *xfer;
struct fw_bind *fwb;
struct csrdir *csrd;
fc->max_asyretry = FW_MAXASYRTY;
fc->arq->queued = 0;
fc->ars->queued = 0;
fc->atq->queued = 0;
fc->ats->queued = 0;
fc->arq->psize = FWPMAX_S400;
fc->ars->psize = FWPMAX_S400;
fc->atq->psize = FWPMAX_S400;
fc->ats->psize = FWPMAX_S400;
fc->arq->buf = NULL;
fc->ars->buf = NULL;
fc->atq->buf = NULL;
fc->ats->buf = NULL;
fc->arq->flag = FWXFERQ_PACKET;
fc->ars->flag = FWXFERQ_PACKET;
fc->atq->flag = FWXFERQ_PACKET;
fc->ats->flag = FWXFERQ_PACKET;
STAILQ_INIT(&fc->atq->q);
STAILQ_INIT(&fc->ats->q);
for( i = 0 ; i < fc->nisodma ; i ++ ){
fc->it[i]->queued = 0;
fc->ir[i]->queued = 0;
fc->it[i]->start = NULL;
fc->ir[i]->start = NULL;
fc->it[i]->buf = NULL;
fc->ir[i]->buf = NULL;
fc->it[i]->flag = FWXFERQ_STREAM;
fc->ir[i]->flag = FWXFERQ_STREAM;
STAILQ_INIT(&fc->it[i]->q);
STAILQ_INIT(&fc->ir[i]->q);
STAILQ_INIT(&fc->it[i]->binds);
STAILQ_INIT(&fc->ir[i]->binds);
}
fc->arq->maxq = FWMAXQUEUE;
fc->ars->maxq = FWMAXQUEUE;
fc->atq->maxq = FWMAXQUEUE;
fc->ats->maxq = FWMAXQUEUE;
for( i = 0 ; i < fc->nisodma ; i++){
fc->ir[i]->maxq = FWMAXQUEUE;
fc->it[i]->maxq = FWMAXQUEUE;
}
/* Initialize csr registers */
fc->topology_map = (struct fw_topology_map *)malloc(
sizeof(struct fw_topology_map),
M_DEVBUF, M_DONTWAIT | M_ZERO);
fc->speed_map = (struct fw_speed_map *)malloc(
sizeof(struct fw_speed_map),
M_DEVBUF, M_DONTWAIT | M_ZERO);
CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
CSRARC(fc, TOPO_MAP + 4) = 1;
CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
CSRARC(fc, SPED_MAP + 4) = 1;
TAILQ_INIT(&fc->devices);
STAILQ_INIT(&fc->pending);
/* Initialize csr ROM work space */
SLIST_INIT(&fc->ongocsr);
SLIST_INIT(&fc->csrfree);
for( i = 0 ; i < FWMAXCSRDIR ; i++){
csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT);
if(csrd == NULL) break;
SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
}
/* Initialize Async handlers */
STAILQ_INIT(&fc->binds);
for( i = 0 ; i < 0x40 ; i++){
STAILQ_INIT(&fc->tlabels[i]);
}
/* DV depend CSRs see blue book */
#if 0
CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
CSRARC(fc, oPCR) = 0x8000007a;
for(i = 4 ; i < 0x7c/4 ; i+=4){
CSRARC(fc, i + oPCR) = 0x8000007a;
}
CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
CSRARC(fc, iPCR) = 0x803f0000;
for(i = 4 ; i < 0x7c/4 ; i+=4){
CSRARC(fc, i + iPCR) = 0x0;
}
#endif
xfer = fw_xfer_alloc();
if(xfer == NULL) return;
fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT);
if(fwb == NULL){
fw_xfer_free(xfer);
}
xfer->act.hand = fw_vmaccess;
xfer->act_type = FWACT_XFER;
xfer->fc = fc;
xfer->sc = NULL;
fwb->start_hi = 0x2;
fwb->start_lo = 0;
fwb->addrlen = 0xffffffff;
fwb->xfer = xfer;
fw_bindadd(fc, fwb);
}
/*
* To lookup binded process from IEEE1394 address.
*/
static struct fw_bind *
fw_bindlookup(fc, dest_hi, dest_lo)
struct firewire_comm *fc;
u_int32_t dest_lo, dest_hi;
{
struct fw_bind *tfw;
for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ;
tfw = STAILQ_NEXT(tfw, fclist)){
if(tfw->xfer->act_type != FWACT_NULL &&
tfw->start_hi == dest_hi &&
tfw->start_lo <= dest_lo &&
(tfw->start_lo + tfw->addrlen) > dest_lo){
return(tfw);
}
}
return(NULL);
}
/*
* To bind IEEE1394 address block to process.
*/
int fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
{
struct fw_bind *tfw, *tfw2 = NULL;
int err = 0;
tfw = STAILQ_FIRST(&fc->binds);
if(tfw == NULL){
STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
goto out;
}
if((tfw->start_hi > fwb->start_hi) ||
(tfw->start_hi == fwb->start_hi &&
(tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){
STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
goto out;
}
for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){
if((tfw->start_hi < fwb->start_hi) ||
(tfw->start_hi == fwb->start_hi &&
(tfw->start_lo + tfw->addrlen) < fwb->start_lo)){
tfw2 = STAILQ_NEXT(tfw, fclist);
if(tfw2 == NULL)
break;
if((tfw2->start_hi > fwb->start_hi) ||
(tfw2->start_hi == fwb->start_hi &&
tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){
break;
}else{
err = EBUSY;
goto out;
}
}
}
if(tfw != NULL){
STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist);
}else{
STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist);
}
out:
if(!err && fwb->xfer->act_type == FWACT_CH){
STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist);
}
return err;
}
/*
* To free IEEE1394 address block.
*/
int fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
{
int s;
s = splfw();
/* shall we check the existance? */
STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
splx(s);
if (fwb->xfer)
fw_xfer_free(fwb->xfer);
return 0;
}
/*
* To free transaction label.
*/
static void fw_tl_free ( struct firewire_comm *fc, struct fw_xfer *xfer )
{
struct tlabel *tl;
int s = splfw();
for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL;
tl = STAILQ_NEXT(tl, link)){
if(tl->xfer == xfer){
STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link);
free(tl, M_DEVBUF);
splx(s);
return;
}
}
splx(s);
return;
}
/*
* To obtain XFER structure by transaction label.
*/
static struct fw_xfer *fw_tl2xfer ( struct firewire_comm *fc, int node, int tlabel )
{
struct fw_xfer *xfer;
struct tlabel *tl;
int s = splfw();
for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL;
tl = STAILQ_NEXT(tl, link)){
if(tl->xfer->dst == node){
xfer = tl->xfer;
#if 0
STAILQ_REMOVE(&fc->tlabels[tlabel], tl, tlabel, link);
free(tl, M_DEVBUF);
#endif
splx(s);
return(xfer);
}
}
splx(s);
return(NULL);
}
/*
* To allocate IEEE1394 XFER structure.
*/
struct fw_xfer *fw_xfer_alloc()
{
struct fw_xfer *xfer;
#if 0
xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT);
#else
xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO);
#endif
if(xfer == NULL) return xfer;
#if 0 /* xfer->tl = 0 was missing.. */
xfer->act_type = FWACT_NULL;
xfer->fc = NULL;
xfer->retry = 0;
xfer->resp = 0;
xfer->state = FWXF_INIT;
xfer->time = time_second;
xfer->sub = -1;
xfer->send.buf = NULL;
xfer->send.off = 0;
xfer->send.len = 0;
xfer->recv.buf = NULL;
xfer->recv.off = 0;
xfer->recv.len = 0;
xfer->retry_req = NULL;
xfer->act.hand = NULL;
xfer->sc = NULL;
#else
xfer->time = time_second;
xfer->sub = -1;
#endif
return xfer;
}
/*
* IEEE1394 XFER post process.
*/
void
fw_xfer_done(struct fw_xfer *xfer)
{
if (xfer->act.hand == NULL)
return;
#if XFER_TIMEOUT
untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch);
#endif
if (xfer->fc->status != FWBUSRESET)
xfer->act.hand(xfer);
else {
printf("fw_xfer_done: pending\n");
if (xfer->fc != NULL)
STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link);
else
panic("fw_xfer_done: why xfer->fc is NULL?");
}
}
/*
* To free IEEE1394 XFER structure.
*/
void fw_xfer_free( struct fw_xfer* xfer)
{
int s;
if(xfer == NULL ) return;
if(xfer->state == FWXF_INQ){
printf("fw_xfer_free FWXF_INQ\n");
s = splfw();
STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
xfer->q->queued --;
splx(s);
}
if(xfer->fc != NULL){
if(xfer->state == FWXF_START){
#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */
printf("fw_xfer_free FWXF_START\n");
#endif
s = splfw();
xfer->q->drain(xfer->fc, xfer);
splx(s);
}
}
if(xfer->send.buf != NULL){
free(xfer->send.buf, M_DEVBUF);
}
if(xfer->recv.buf != NULL){
free(xfer->recv.buf, M_DEVBUF);
}
if(xfer->fc != NULL){
fw_tl_free(xfer->fc, xfer);
}
free(xfer, M_DEVBUF);
}
/*
* Callback for PHY configuration.
*/
static void
fw_phy_config_callback(struct fw_xfer *xfer)
{
#if 0
printf("phy_config done state=%d resp=%d\n",
xfer->state, xfer->resp);
#endif
fw_xfer_free(xfer);
/* XXX need bus reset ?? */
/* sc->fc->ibr(xfer->fc); LOOP */
}
/*
* To configure PHY.
*/
static void
fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
fc->status = FWBUSPHYCONF;
DELAY(100000);
xfer = fw_xfer_alloc();
xfer->send.len = 12;
xfer->send.off = 0;
xfer->fc = fc;
xfer->retry_req = fw_asybusy;
xfer->act.hand = fw_phy_config_callback;
xfer->send.buf = malloc(sizeof(u_int32_t),
M_DEVBUF, M_DONTWAIT | M_ZERO);
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.ld[1] = 0;
if (root_node >= 0)
fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23);
if (gap_count >= 0)
fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16);
fp->mode.ld[2] = ~fp->mode.ld[1];
/* XXX Dangerous, how to pass PHY packet to device driver */
fp->mode.common.tcode |= FWTCODE_PHY;
printf("send phy_config root_node=%d gap_count=%d\n",
root_node, gap_count);
fw_asyreq(fc, -1, xfer);
}
#if 0
/*
* Dump self ID.
*/
static void
fw_print_sid(u_int32_t sid)
{
#if 0
printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
" p0:%d p1:%d p2:%d i:%d m:%d\n",
FWPHYSIDNODE(sid), FWPHYSIDLINK(sid), FWPHYSIDGAP(sid),
FWPHYSIDSPD(sid), FWPHYSIDDEL(sid), FWPHYSIDCON(sid),
FWPHYSIDPWR(sid), FWPHYSIDP0(sid), FWPHYSIDP1(sid),
FWPHYSIDP2(sid), FWPHYSIDIR(sid), FWPHYSIDMORE(sid));
#else
union fw_self_id *s;
s = (union fw_self_id *) &sid;
printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d"
" p0:%d p1:%d p2:%d i:%d m:%d\n",
s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
s->p0.phy_speed, s->p0.phy_delay, s->p0.contender,
s->p0.power_class, s->p0.port0, s->p0.port1,
s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
#endif
}
#endif
/*
* To receive self ID.
*/
void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off)
{
u_int32_t *p, *sid = (u_int32_t *)(buf + off);
union fw_self_id *self_id;
u_int i, j, node, c_port = 0, i_branch = 0;
fc->sid_cnt = len /(sizeof(u_int32_t) * 2);
fc->status = FWBUSINIT;
fc->max_node = fc->nodeid & 0x3f;
CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16;
fc->status = FWBUSCYMELECT;
fc->topology_map->crc_len = 2;
fc->topology_map->generation ++;
fc->topology_map->self_id_count = 0;
fc->topology_map->node_count = 0;
fc->speed_map->generation ++;
fc->speed_map->crc_len = 1 + (64*64 + 3) / 4;
self_id = &fc->topology_map->self_id[0];
for(i = 0; i < fc->sid_cnt; i ++){
if (sid[1] != ~sid[0]) {
printf("fw_sidrcv: invalid self-id packet\n");
sid += 2;
continue;
}
*self_id = *((union fw_self_id *)sid);
fc->topology_map->crc_len++;
if(self_id->p0.sequel == 0){
fc->topology_map->node_count ++;
c_port = 0;
#if 0
fw_print_sid(sid[0]);
#endif
node = self_id->p0.phy_id;
if(fc->max_node < node){
fc->max_node = self_id->p0.phy_id;
}
/* XXX I'm not sure this is the right speed_map */
fc->speed_map->speed[node][node]
= self_id->p0.phy_speed;
for (j = 0; j < node; j ++) {
fc->speed_map->speed[j][node]
= fc->speed_map->speed[node][j]
= min(fc->speed_map->speed[j][j],
self_id->p0.phy_speed);
}
if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
(self_id->p0.link_active && self_id->p0.contender)) {
fc->irm = self_id->p0.phy_id;
}
if(self_id->p0.port0 >= 0x2){
c_port++;
}
if(self_id->p0.port1 >= 0x2){
c_port++;
}
if(self_id->p0.port2 >= 0x2){
c_port++;
}
}
if(c_port > 2){
i_branch += (c_port - 2);
}
sid += 2;
self_id++;
fc->topology_map->self_id_count ++;
}
printf("%s: %d nodes", device_get_nameunit(fc->dev), fc->max_node + 1);
/* CRC */
fc->topology_map->crc = fw_crc16(
(u_int32_t *)&fc->topology_map->generation,
fc->topology_map->crc_len * 4);
fc->speed_map->crc = fw_crc16(
(u_int32_t *)&fc->speed_map->generation,
fc->speed_map->crc_len * 4);
/* byteswap and copy to CSR */
p = (u_int32_t *)fc->topology_map;
for (i = 0; i <= fc->topology_map->crc_len; i++)
CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
p = (u_int32_t *)fc->speed_map;
CSRARC(fc, SPED_MAP) = htonl(*p++);
CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
/* don't byte-swap u_int8_t array */
bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4);
fc->max_hop = fc->max_node - i_branch;
#if 1
printf(", maxhop <= %d", fc->max_hop);
#endif
if(fc->irm == -1 ){
printf(", Not found IRM capable node");
}else{
printf(", cable IRM = %d", fc->irm);
if (fc->irm == fc->nodeid)
printf(" (me)\n");
else
printf("\n");
}
if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){
if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
fc->status = FWBUSMGRDONE;
CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
}else{
fc->status = FWBUSMGRELECT;
fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8);
}
}else{
fc->status = FWBUSMGRDONE;
printf("%s: BMR = %x\n", device_get_nameunit(fc->dev), CSRARC(fc, BUS_MGR_ID));
}
free(buf, M_DEVBUF);
#if 1
/* XXX optimize gap_count, if I am BMGR */
if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){
fw_phy_config(fc, -1, gap_cnt[fc->max_hop]);
}
#endif
#if 1
timeout((timeout_t *)fw_bus_probe, (void *)fc, hz/4);
#else
fw_bus_probe(fc);
#endif
}
/*
* To probe devices on the IEEE1394 bus.
*/
static void fw_bus_probe(struct firewire_comm *fc)
{
int s;
struct fw_device *fwdev, *next;
s = splfw();
fc->status = FWBUSEXPLORE;
fc->retry_count = 0;
/*
* Invalidate all devices, just after bus reset. Devices
* to be removed has not been seen longer time.
*/
for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
next = TAILQ_NEXT(fwdev, link);
if(fwdev->status != FWDEVINVAL){
fwdev->status = FWDEVINVAL;
fwdev->rcnt = 0;
}else if(fwdev->rcnt < FW_MAXDEVRCNT){
fwdev->rcnt ++;
}else{
TAILQ_REMOVE(&fc->devices, fwdev, link);
free(fwdev, M_DEVBUF);
}
}
fc->ongonode = 0;
fc->ongoaddr = CSRROMOFF;
fc->ongodev = NULL;
fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
fw_bus_explore(fc);
splx(s);
}
/*
* To collect device informations on the IEEE1394 bus.
*/
static void fw_bus_explore(struct firewire_comm *fc )
{
int err = 0;
struct fw_device *fwdev, *tfwdev;
u_int32_t addr;
struct fw_xfer *xfer;
struct fw_pkt *fp;
if(fc->status != FWBUSEXPLORE)
return;
loop:
if(fc->ongonode == fc->nodeid) fc->ongonode++;
if(fc->ongonode > fc->max_node) goto done;
if(fc->ongonode >= 0x3f) goto done;
/* check link */
/* XXX we need to check phy_id first */
if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) {
printf("fw_bus_explore: node %d link down\n", fc->ongonode);
fc->ongonode++;
goto loop;
}
if(fc->ongoaddr <= CSRROMOFF &&
fc->ongoeui.hi == 0xffffffff &&
fc->ongoeui.lo == 0xffffffff ){
fc->ongoaddr = CSRROMOFF;
addr = 0xf0000000 | fc->ongoaddr;
}else if(fc->ongoeui.hi == 0xffffffff ){
fc->ongoaddr = CSRROMOFF + 0xc;
addr = 0xf0000000 | fc->ongoaddr;
}else if(fc->ongoeui.lo == 0xffffffff ){
fc->ongoaddr = CSRROMOFF + 0x10;
addr = 0xf0000000 | fc->ongoaddr;
}else if(fc->ongodev == NULL){
for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL;
fwdev = TAILQ_NEXT(fwdev, link)){
if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){
break;
}
}
if(fwdev != NULL){
fwdev->dst = fc->ongonode;
fwdev->status = FWDEVATTACHED;
fc->ongonode++;
fc->ongoaddr = CSRROMOFF;
fc->ongodev = NULL;
fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
goto loop;
}
fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT);
if(fwdev == NULL)
return;
fwdev->rommax = 0;
fwdev->dst = fc->ongonode;
fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo;
fwdev->status = FWDEVINIT;
#if 0
fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4)
>> ((3 - (fc->ongonode % 4)) * 8);
#else
fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode];
#endif
#if 0
TAILQ_INSERT_TAIL(&fc->devices, fwdev, link);
#else
tfwdev = TAILQ_FIRST(&fc->devices);
while( tfwdev != NULL &&
(tfwdev->eui.hi > fwdev->eui.hi) &&
((tfwdev->eui.hi == fwdev->eui.hi) &&
tfwdev->eui.lo > fwdev->eui.lo)){
tfwdev = TAILQ_NEXT( tfwdev, link);
}
if(tfwdev == NULL){
TAILQ_INSERT_TAIL(&fc->devices, fwdev, link);
}else{
TAILQ_INSERT_BEFORE(tfwdev, fwdev, link);
}
#endif
printf("%s:Discover new %s device ID:%08x%08x\n", device_get_nameunit(fc->dev), linkspeed[fwdev->speed], fc->ongoeui.hi, fc->ongoeui.lo);
fc->ongodev = fwdev;
fc->ongoaddr = CSRROMOFF;
addr = 0xf0000000 | fc->ongoaddr;
}else{
addr = 0xf0000000 | fc->ongoaddr;
}
#if 0
xfer = asyreqq(fc, FWSPD_S100, 0, 0,
((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr,
fw_bus_explore_callback);
if(xfer == NULL) goto done;
#else
xfer = fw_xfer_alloc();
if(xfer == NULL){
goto done;
}
xfer->send.len = 16;
xfer->spd = 0;
xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
fw_xfer_free( xfer);
return;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.rreqq.dest_hi = htons(0xffff);
fp->mode.rreqq.tlrt = 0;
fp->mode.rreqq.tcode = FWTCODE_RREQQ;
fp->mode.rreqq.pri = 0;
fp->mode.rreqq.src = 0;
xfer->dst = FWLOCALBUS | fc->ongonode;
fp->mode.rreqq.dst = htons(xfer->dst);
fp->mode.rreqq.dest_lo = htonl(addr);
xfer->act.hand = fw_bus_explore_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return;
}
#endif
return;
done:
/* fw_attach_devs */
fc->status = FWBUSEXPDONE;
printf("bus_explore done\n");
fw_attach_dev(fc);
return;
}
/* Portable Async. request read quad */
struct fw_xfer *asyreqq(struct firewire_comm *fc,
u_int8_t spd, u_int8_t tl, u_int8_t rt,
u_int32_t addr_hi, u_int32_t addr_lo, void *hand __P())
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
int err;
xfer = fw_xfer_alloc();
if(xfer == NULL){
return NULL;
}
xfer->send.len = 16;
xfer->spd = spd; /* XXX:min(spd, fc->spd) */
xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
fw_xfer_free( xfer);
return NULL;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff);
if(tl & FWP_TL_VALID){
fp->mode.rreqq.tlrt = (tl & 0x3f) << 2;
}else{
fp->mode.rreqq.tlrt = 0;
}
fp->mode.rreqq.tlrt |= rt & 0x3;
fp->mode.rreqq.tcode = FWTCODE_RREQQ;
fp->mode.rreqq.pri = 0;
fp->mode.rreqq.src = 0;
xfer->dst = addr_hi >> 16;
fp->mode.rreqq.dst = htons(xfer->dst);
fp->mode.rreqq.dest_lo = htonl(addr_lo);
xfer->act.hand = hand;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return NULL;
}
return xfer;
}
/*
* Callback for the IEEE1394 bus information collection.
*/
static void fw_bus_explore_callback(struct fw_xfer *xfer){
struct firewire_comm *fc;
struct fw_pkt *sfp,*rfp;
struct csrhdr *chdr;
struct csrdir *csrd;
struct csrreg *csrreg;
u_int32_t offset;
if(xfer == NULL) return;
fc = xfer->fc;
if(xfer->resp != 0){
printf("resp != 0: node=%d addr=0x%x\n",
fc->ongonode, fc->ongoaddr);
fc->retry_count++;
goto nextnode;
}
if(xfer->send.buf == NULL){
printf("send.buf == NULL: node=%d addr=0x%x\n",
fc->ongonode, fc->ongoaddr);
printf("send.buf == NULL\n");
fc->retry_count++;
goto nextnode;
}
sfp = (struct fw_pkt *)xfer->send.buf;
if(xfer->recv.buf == NULL){
printf("recv.buf == NULL: node=%d addr=0x%x\n",
fc->ongonode, fc->ongoaddr);
fc->retry_count++;
goto nextnode;
}
rfp = (struct fw_pkt *)xfer->recv.buf;
#if 0
{
u_int32_t *qld;
int i;
qld = (u_int32_t *)xfer->recv.buf;
printf("len:%d\n", xfer->recv.len);
for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){
printf("0x%08x ", ntohl(rfp->mode.ld[i/4]));
if((i % 16) == 15) printf("\n");
}
if((i % 16) != 15) printf("\n");
}
#endif
if(fc->ongodev == NULL){
if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){
rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data);
chdr = (struct csrhdr *)(&rfp->mode.rresq.data);
/* If CSR is minimul confinguration, more investgation is not needed. */
if(chdr->info_len == 1){
goto nextnode;
}else{
fc->ongoaddr = CSRROMOFF + 0xc;
}
}else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){
fc->ongoeui.hi = ntohl(rfp->mode.rresq.data);
fc->ongoaddr = CSRROMOFF + 0x10;
}else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){
fc->ongoeui.lo = ntohl(rfp->mode.rresq.data);
if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0)
goto nextnode;
fc->ongoaddr = CSRROMOFF;
}
}else{
fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data);
if(fc->ongoaddr > fc->ongodev->rommax){
fc->ongodev->rommax = fc->ongoaddr;
}
csrd = SLIST_FIRST(&fc->ongocsr);
if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
chdr = (struct csrhdr *)(fc->ongodev->csrrom);
offset = CSRROMOFF;
}else{
chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4];
offset = csrd->off;
}
if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){
csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4];
if( csrreg->key == 0x81 || csrreg->key == 0xd1){
csrd = SLIST_FIRST(&fc->csrfree);
if(csrd == NULL){
goto nextnode;
}else{
csrd->ongoaddr = fc->ongoaddr;
fc->ongoaddr += csrreg->val * 4;
csrd->off = fc->ongoaddr;
SLIST_REMOVE_HEAD(&fc->csrfree, link);
SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
goto nextaddr;
}
}
}
fc->ongoaddr += 4;
if(((fc->ongoaddr - offset)/4 > chdr->crc_len) &&
(fc->ongodev->rommax < 0x414)){
if(fc->ongodev->rommax <= 0x414){
csrd = SLIST_FIRST(&fc->csrfree);
if(csrd == NULL) goto nextnode;
csrd->off = fc->ongoaddr;
csrd->ongoaddr = fc->ongoaddr;
SLIST_REMOVE_HEAD(&fc->csrfree, link);
SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link);
}
goto nextaddr;
}
while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){
if(csrd == NULL){
goto nextnode;
};
fc->ongoaddr = csrd->ongoaddr + 4;
SLIST_REMOVE_HEAD(&fc->ongocsr, link);
SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
csrd = SLIST_FIRST(&fc->ongocsr);
if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){
chdr = (struct csrhdr *)(fc->ongodev->csrrom);
offset = CSRROMOFF;
}else{
chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]);
offset = csrd->off;
}
}
if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){
goto nextnode;
}
}
nextaddr:
fw_xfer_free( xfer);
fw_bus_explore(fc);
return;
nextnode:
fw_xfer_free( xfer);
fc->ongonode++;
/* housekeeping work space */
fc->ongoaddr = CSRROMOFF;
fc->ongodev = NULL;
fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff;
while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){
SLIST_REMOVE_HEAD(&fc->ongocsr, link);
SLIST_INSERT_HEAD(&fc->csrfree, csrd, link);
}
fw_bus_explore(fc);
return;
}
/*
* Async. write responce support for kernel internal use.
*/
int fw_writeres(struct firewire_comm *fc, u_int32_t dst, u_int32_t tlrt){
int err = 0;
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->send.len = 12;
xfer->spd = 0;
xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT);
if(xfer->send.buf == NULL){
return ENOMEM;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wres.tlrt = tlrt;
fp->mode.wres.tcode = FWTCODE_WRES;
fp->mode.wres.pri = 0;
fp->mode.wres.dst = htons(dst);
xfer->act.hand = fw_asy_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return err;
}
err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0);
fw_xfer_free( xfer);
return err;
}
/*
* Async. read responce block support for kernel internal use.
*/
int fw_readresb(struct firewire_comm *fc, u_int32_t dst, u_int32_t tlrt, u_int32_t len, u_int32_t *buf){
int err = 0;
struct fw_xfer *xfer ;
struct fw_pkt *fp;
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->send.len = sizeof(struct fw_pkt) + len;
xfer->spd = 0;
xfer->send.buf = malloc(sizeof(struct fw_pkt) + 1024, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
return ENOMEM;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.rresb.tlrt = tlrt;
fp->mode.rresb.tcode = FWTCODE_RRESB;
fp->mode.rresb.pri = 0;
fp->mode.rresb.dst = htons(dst);
fp->mode.rresb.rtcode = 0;
fp->mode.rresb.extcode = 0;
fp->mode.rresb.len = htons(len);
bcopy(buf, fp->mode.rresb.payload, len);
xfer->act.hand = fw_asy_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return err;
}
err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0);
fw_xfer_free( xfer);
return err;
}
/*
* Async. write request block support for kernel internal use.
*/
int fw_writereqb(struct firewire_comm *fc, u_int32_t addr_hi, u_int32_t addr_lo, u_int len, u_int32_t *buf){
int err = 0;
struct fw_xfer *xfer ;
struct fw_pkt *fp;
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->send.len = sizeof(struct fw_pkt) + len;
xfer->spd = 0;
xfer->send.buf = malloc(sizeof(struct fw_pkt) + 1024, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
return ENOMEM;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.wreqb.dest_hi = htonl(addr_hi & 0xffff);
fp->mode.wreqb.tlrt = 0;
fp->mode.wreqb.tcode = FWTCODE_WREQB;
fp->mode.wreqb.pri = 0;
fp->mode.wreqb.dst = htons(addr_hi >> 16);
fp->mode.wreqb.dest_lo = htonl(addr_lo);
fp->mode.wreqb.len = htons(len);
fp->mode.wreqb.extcode = 0;
bcopy(buf, fp->mode.wreqb.payload, len);
xfer->act.hand = fw_asy_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return err;
}
err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0);
fw_xfer_free( xfer);
return err;
}
/*
* Async. read request support for kernel internal use.
*/
int fw_readreqq(struct firewire_comm *fc, u_int32_t addr_hi, u_int32_t addr_lo, u_int32_t *ret){
int err = 0;
struct fw_xfer *xfer ;
struct fw_pkt *fp, *rfp;
xfer = fw_xfer_alloc();
if(xfer == NULL){
err = ENOMEM;
return err;
}
xfer->send.len = 16;
xfer->spd = 0;
xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
return ENOMEM;
}
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.rreqq.dest_hi = htonl(addr_hi & 0xffff);
fp->mode.rreqq.tlrt = 0;
fp->mode.rreqq.tcode = FWTCODE_RREQQ;
fp->mode.rreqq.pri = 0;
xfer->dst = addr_hi >> 16;
fp->mode.rreqq.dst = htons(xfer->dst);
fp->mode.rreqq.dest_lo = htonl(addr_lo);
xfer->act.hand = fw_asy_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return err;
}
err = tsleep((caddr_t)xfer, FWPRI, "asyreq", 0);
if(err == 0 && xfer->recv.buf != NULL){
rfp = (struct fw_pkt *)xfer->recv.buf;
*ret = ntohl(rfp->mode.rresq.data);
}
fw_xfer_free( xfer);
return err;
}
/*
* To obtain CSR register values.
*/
u_int32_t getcsrdata(struct fw_device *fwdev, u_int8_t key)
{
int i;
struct csrhdr *chdr;
struct csrreg *creg;
chdr = (struct csrhdr *)&fwdev->csrrom[0];
for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){
creg = (struct csrreg *)&fwdev->csrrom[i/4];
if(creg->key == key){
return (u_int32_t)creg->val;
}
}
return 0;
}
/*
* To attach sub-devices layer onto IEEE1394 bus.
*/
static void fw_attach_dev(struct firewire_comm *fc)
{
struct fw_device *fwdev;
struct fw_xfer *xfer;
int i, err;
device_t *devlistp;
int devcnt;
struct firewire_dev_comm *fdc;
for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL;
fwdev = TAILQ_NEXT(fwdev, link)){
if(fwdev->status == FWDEVINIT){
fwdev->spec = getcsrdata(fwdev, CSRKEY_SPEC);
if(fwdev->spec == 0)
continue;
fwdev->ver = getcsrdata(fwdev, CSRKEY_VER);
if(fwdev->ver == 0)
continue;
fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf;
switch(fwdev->spec){
case CSRVAL_ANSIT10:
switch(fwdev->ver){
case CSRVAL_T10SBP2:
printf("Device SBP-II");
break;
default:
break;
}
break;
case CSRVAL_1394TA:
switch(fwdev->ver){
case CSR_PROTAVC:
printf("Device AV/C");
break;
case CSR_PROTCAL:
printf("Device CAL");
break;
case CSR_PROTEHS:
printf("Device EHS");
break;
case CSR_PROTHAVI:
printf("Device HAVi");
break;
case CSR_PROTCAM104:
printf("Device 1394 Cam 1.04");
break;
case CSR_PROTCAM120:
printf("Device 1394 Cam 1.20");
break;
case CSR_PROTCAM130:
printf("Device 1394 Cam 1.30");
break;
case CSR_PROTDPP:
printf("Device 1394 Direct print");
break;
case CSR_PROTIICP:
printf("Device Industrial & Instrument");
break;
default:
printf("Device unkwon 1394TA");
break;
}
break;
default:
break;
}
fwdev->status = FWDEVATTACHED;
printf("\n");
}
}
err = device_get_children(fc->dev, &devlistp, &devcnt);
if( err != 0 )
return;
for( i = 0 ; i < devcnt ; i++){
if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
fdc = device_get_softc(devlistp[i]);
if (fdc->post_explore != NULL)
fdc->post_explore(fdc);
}
}
free(devlistp, M_TEMP);
/* call pending handlers */
i = 0;
while ((xfer = STAILQ_FIRST(&fc->pending))) {
STAILQ_REMOVE_HEAD(&fc->pending, link);
i++;
if (xfer->act.hand)
xfer->act.hand(xfer);
}
if (i > 0)
printf("fw_attach_dev: %d pending handlers called\n", i);
if (fc->retry_count > 0) {
printf("retry_count = %d\n", fc->retry_count);
fc->retry_probe_handle = timeout((timeout_t *)fc->ibr,
(void *)fc, hz*2);
}
return;
}
/*
* To allocate uniq transaction label.
*/
static int fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
{
u_int i;
struct tlabel *tl, *tmptl;
int s;
static u_int32_t label = 0;
s = splfw();
for( i = 0 ; i < 0x40 ; i ++){
label = (label + 1) & 0x3f;
for(tmptl = STAILQ_FIRST(&fc->tlabels[label]);
tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){
if(tmptl->xfer->dst == xfer->dst) break;
}
if(tmptl == NULL) {
tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_DONTWAIT);
if (tl == NULL) {
splx(s);
return (-1);
}
tl->xfer = xfer;
STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link);
splx(s);
return(label);
}
}
splx(s);
printf("fw_get_tlabel: no free tlabel\n");
return(-1);
}
/*
* Generic packet receving process.
*/
void fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd)
{
struct fw_pkt *fp, *resfp;
struct fw_xfer *xfer;
struct fw_bind *bind;
struct firewire_softc *sc;
int s;
#if 0
{
u_int32_t *qld;
int i;
qld = (u_int32_t *)buf;
printf("spd %d len:%d\n", spd, len);
for( i = 0 ; i <= len && i < 32; i+= 4){
printf("0x%08x ", ntohl(qld[i/4]));
if((i % 16) == 15) printf("\n");
}
if((i % 16) != 15) printf("\n");
}
#endif
fp = (struct fw_pkt *)(buf + off);
switch(fp->mode.common.tcode){
case FWTCODE_WRES:
case FWTCODE_RRESQ:
case FWTCODE_RRESB:
case FWTCODE_LRES:
xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
fp->mode.hdr.tlrt >> 2);
if(xfer == NULL) {
printf("fw_rcv: unknown response "
"tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n",
fp->mode.common.tcode,
ntohs(fp->mode.hdr.src),
fp->mode.hdr.tlrt >> 2,
fp->mode.hdr.tlrt & 3,
fp->mode.rresq.data);
#if 1
printf("try ad-hoc work around!!\n");
xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src),
(fp->mode.hdr.tlrt >> 2)^3);
if (xfer == NULL) {
printf("no use...\n");
goto err;
}
#else
goto err;
#endif
}
switch(xfer->act_type){
case FWACT_XFER:
if((xfer->sub >= 0) &&
((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){
xfer->resp = EINVAL;
fw_xfer_done(xfer);
goto err;
}
xfer->recv.len = len;
xfer->recv.off = off;
xfer->recv.buf = buf;
xfer->resp = 0;
fw_xfer_done(xfer);
return;
break;
case FWACT_CH:
default:
goto err;
break;
}
break;
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
case FWTCODE_RREQQ:
case FWTCODE_RREQB:
case FWTCODE_LREQ:
bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi),
ntohl(fp->mode.rreqq.dest_lo));
if(bind == NULL){
printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n",
ntohs(fp->mode.rreqq.dest_hi),
ntohl(fp->mode.rreqq.dest_lo),
fp->mode.common.tcode);
if (fc->status == FWBUSRESET) {
printf("fw_rcv: cannot response(bus reset)!\n");
goto err;
}
xfer = fw_xfer_alloc();
if(xfer == NULL){
return;
}
xfer->spd = spd;
xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT);
resfp = (struct fw_pkt *)xfer->send.buf;
switch(fp->mode.common.tcode){
case FWTCODE_WREQQ:
case FWTCODE_WREQB:
resfp->mode.hdr.tcode = FWTCODE_WRES;
xfer->send.len = 12;
break;
case FWTCODE_RREQQ:
resfp->mode.hdr.tcode = FWTCODE_RRESQ;
xfer->send.len = 16;
break;
case FWTCODE_RREQB:
resfp->mode.hdr.tcode = FWTCODE_RRESB;
xfer->send.len = 16;
break;
case FWTCODE_LREQ:
resfp->mode.hdr.tcode = FWTCODE_LRES;
xfer->send.len = 16;
break;
}
resfp->mode.hdr.dst = fp->mode.hdr.src;
resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
resfp->mode.hdr.pri = fp->mode.hdr.pri;
resfp->mode.rresb.rtcode = 7;
resfp->mode.rresb.extcode = 0;
resfp->mode.rresb.len = 0;
/*
xfer->act.hand = fw_asy_callback;
*/
xfer->act.hand = fw_xfer_free;
if(fw_asyreq(fc, -1, xfer)){
fw_xfer_free( xfer);
return;
}
goto err;
}
switch(bind->xfer->act_type){
case FWACT_XFER:
xfer = fw_xfer_alloc();
if(xfer == NULL) goto err;
xfer->fc = bind->xfer->fc;
xfer->sc = bind->xfer->sc;
xfer->recv.buf = buf;
xfer->recv.len = len;
xfer->recv.off = off;
xfer->spd = spd;
xfer->act.hand = bind->xfer->act.hand;
if (fc->status != FWBUSRESET)
xfer->act.hand(xfer);
else
STAILQ_INSERT_TAIL(&fc->pending, xfer, link);
return;
break;
case FWACT_CH:
if(fc->ir[bind->xfer->sub]->queued >=
fc->ir[bind->xfer->sub]->maxq){
printf("%s:Discard a packet %x %d\n",
device_get_nameunit(fc->dev),
bind->xfer->sub,
fc->ir[bind->xfer->sub]->queued);
goto err;
}
xfer = fw_xfer_alloc();
if(xfer == NULL) goto err;
xfer->recv.buf = buf;
xfer->recv.len = len;
xfer->recv.off = off;
xfer->spd = spd;
s = splfw();
fc->ir[bind->xfer->sub]->queued++;
STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link);
splx(s);
wakeup((caddr_t)fc->ir[bind->xfer->sub]);
return;
break;
default:
goto err;
break;
}
break;
case FWTCODE_STREAM:
{
struct fw_xferq *xferq;
xferq = fc->ir[sub];
#if 0
printf("stream rcv dma %d len %d off %d spd %d\n",
sub, len, off, spd);
#endif
if(xferq->queued >= xferq->maxq) {
printf("receive queue is full\n");
goto err;
}
xfer = fw_xfer_alloc();
if(xfer == NULL) goto err;
xfer->recv.buf = buf;
xfer->recv.len = len;
xfer->recv.off = off;
xfer->spd = spd;
s = splfw();
xferq->queued++;
STAILQ_INSERT_TAIL(&xferq->q, xfer, link);
splx(s);
sc = device_get_softc(fc->bdev);
#if __FreeBSD_version >= 500000
if (SEL_WAITING(&xferq->rsel))
#else
if (&xferq->rsel.si_pid != 0)
#endif
selwakeup(&xferq->rsel);
if (xferq->flag & FWXFERQ_WAKEUP) {
xferq->flag &= ~FWXFERQ_WAKEUP;
wakeup((caddr_t)xferq);
}
if (xferq->flag & FWXFERQ_HANDLER) {
xferq->hand(xferq);
}
return;
break;
}
default:
printf("fw_rcv: unknow tcode\n");
break;
}
err:
free(buf, M_DEVBUF);
}
/*
* Post process for Bus Manager election process.
*/
static void
fw_try_bmr_callback(struct fw_xfer *xfer)
{
struct fw_pkt *sfp,*rfp;
struct firewire_comm *fc;
if(xfer == NULL) return;
fc = xfer->fc;
if(xfer->resp != 0){
goto error;
}
if(xfer->send.buf == NULL){
goto error;
}
sfp = (struct fw_pkt *)xfer->send.buf;
if(xfer->recv.buf == NULL){
goto error;
}
rfp = (struct fw_pkt *)xfer->recv.buf;
CSRARC(fc, BUS_MGR_ID)
= fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f);
printf("%s: new bus manager %d ",
device_get_nameunit(fc->dev), CSRARC(fc, BUS_MGR_ID));
if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){
printf("(me)\n");
/* If I am bus manager, optimize gapcount */
if(fc->max_hop <= MAX_GAPHOP ){
fw_phy_config(fc, -1, gap_cnt[fc->max_hop]);
}
}else{
printf("\n");
}
error:
fw_xfer_free(xfer);
}
/*
* To candidate Bus Manager election process.
*/
void fw_try_bmr(void *arg)
{
struct fw_xfer *xfer;
struct firewire_comm *fc = (struct firewire_comm *)arg;
struct fw_pkt *fp;
int err = 0;
xfer = fw_xfer_alloc();
if(xfer == NULL){
return;
}
xfer->send.len = 24;
xfer->spd = 0;
xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT);
if(xfer->send.buf == NULL){
fw_xfer_free( xfer);
return;
}
fc->status = FWBUSMGRELECT;
xfer->send.off = 0;
fp = (struct fw_pkt *)xfer->send.buf;
fp->mode.lreq.dest_hi = htons(0xffff);
fp->mode.lreq.tlrt = 0;
fp->mode.lreq.tcode = FWTCODE_LREQ;
fp->mode.lreq.pri = 0;
fp->mode.lreq.src = 0;
fp->mode.lreq.len = htons(8);
fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP);
xfer->dst = FWLOCALBUS | fc->irm;
fp->mode.lreq.dst = htons(xfer->dst);
fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID);
fp->mode.lreq.payload[0] = 0x3f;
fp->mode.lreq.payload[1] = fc->nodeid;
xfer->act_type = FWACT_XFER;
xfer->act.hand = fw_try_bmr_callback;
err = fw_asyreq(fc, -1, xfer);
if(err){
fw_xfer_free( xfer);
return;
}
return;
}
/*
* Software implementation for physical memory block access.
* XXX:Too slow, usef for debug purpose only.
*/
static void fw_vmaccess(struct fw_xfer *xfer){
struct fw_pkt *rfp, *sfp = NULL;
u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off);
printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n",
xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
if(xfer->resp != 0){
fw_xfer_free( xfer);
return;
}
if(xfer->recv.buf == NULL){
fw_xfer_free( xfer);
return;
}
rfp = (struct fw_pkt *)xfer->recv.buf;
switch(rfp->mode.hdr.tcode){
/* XXX need fix for 64bit arch */
case FWTCODE_WREQB:
xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT);
xfer->send.len = 12;
sfp = (struct fw_pkt *)xfer->send.buf;
bcopy(rfp->mode.wreqb.payload,
(caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len));
sfp->mode.wres.tcode = FWTCODE_WRES;
sfp->mode.wres.rtcode = 0;
break;
case FWTCODE_WREQQ:
xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT);
xfer->send.len = 12;
sfp->mode.wres.tcode = FWTCODE_WRES;
*((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data;
sfp->mode.wres.rtcode = 0;
break;
case FWTCODE_RREQB:
xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT);
xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
sfp = (struct fw_pkt *)xfer->send.buf;
bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len));
sfp->mode.rresb.tcode = FWTCODE_RRESB;
sfp->mode.rresb.len = rfp->mode.rreqb.len;
sfp->mode.rresb.rtcode = 0;
sfp->mode.rresb.extcode = 0;
break;
case FWTCODE_RREQQ:
xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT);
xfer->send.len = 16;
sfp = (struct fw_pkt *)xfer->send.buf;
sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
sfp->mode.wres.tcode = FWTCODE_RRESQ;
sfp->mode.rresb.rtcode = 0;
break;
default:
fw_xfer_free( xfer);
return;
}
xfer->send.off = 0;
sfp->mode.hdr.dst = rfp->mode.hdr.src;
xfer->dst = ntohs(rfp->mode.hdr.src);
xfer->act.hand = fw_xfer_free;
xfer->retry_req = fw_asybusy;
sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
sfp->mode.hdr.pri = 0;
fw_asyreq(xfer->fc, -1, xfer);
/**/
return;
}
/*
* CRC16 check-sum for IEEE1394 register blocks.
*/
u_int16_t fw_crc16(u_int32_t *ptr, u_int32_t len){
u_int32_t i, sum, crc = 0;
int shift;
len = (len + 3) & ~3;
for(i = 0 ; i < len ; i+= 4){
for( shift = 28 ; shift >= 0 ; shift -= 4){
sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum;
}
crc &= 0xffff;
}
return((u_int16_t) crc);
}
DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0);
MODULE_VERSION(firewire, 1);
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