NetBSD/sys/dev/ieee1394/if_fw.c

306 lines
7.5 KiB
C

/* $NetBSD: if_fw.c,v 1.5 2001/03/03 02:21:26 onoe Exp $ */
/* XXX ALTQ XXX */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 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.
*/
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ieee1394.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/ethertypes.h>
#include <net/route.h>
#ifdef INET
#include <netinet/in.h>
#endif /* INET */
#ifdef INET6
#include <netinet/in.h>
#include <netinet6/in6_var.h>
#endif /* INET6 */
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <machine/bus.h>
#include <dev/ieee1394/ieee1394reg.h>
#include <dev/ieee1394/fwohcireg.h>
#include <dev/ieee1394/ieee1394var.h>
#include <dev/ieee1394/fwohcivar.h>
struct fw_softc {
struct device sc_dev;
struct ieee1394com sc_ic;
int sc_flags;
int (*sc_enable)(struct fw_softc *);
void (*sc_disable)(struct fw_softc *);
};
#define FWF_ATTACHED 0x0001
#define FWF_ENABLED 0x0002
int fw_match(struct device *, struct cfdata *, void *);
void fw_attach(struct device *, struct device *, void *);
int fw_detach(struct device *, int);
int fw_activate(struct device *, enum devact);
int fw_output(struct ifnet *, struct mbuf *, struct sockaddr *,
struct rtentry *);
void fw_input(struct device *, struct mbuf *);
void fw_txint(struct device *, struct mbuf *);
int fw_ioctl(struct ifnet *, u_long, caddr_t);
void fw_start(struct ifnet *);
int fw_init(struct ifnet *);
void fw_stop(struct ifnet *, int);
struct cfattach fw_ca = {
sizeof(struct fw_softc), fw_match, fw_attach,
fw_detach, fw_activate
};
#define FW_FIFO_HI 0x2000
#define FW_FIFO_LO 0x00000000
int
fw_match(struct device *parent, struct cfdata *match, void *aux)
{
char *name = aux;
if (strcmp(name, "fw") == 0)
return 1;
return 0;
}
void
fw_attach(struct device *parent, struct device *self, void *aux)
{
struct fw_softc *sc = (struct fw_softc *)self;
struct ieee1394_softc *psc = (struct ieee1394_softc *)parent;
struct ifnet *ifp = &sc->sc_ic.ic_if;
int i, s;
s = splnet();
memcpy(&sc->sc_ic.ic_hwaddr.iha_uid, psc->sc1394_guid,
IEEE1394_ADDR_LEN);
sc->sc_ic.ic_hwaddr.iha_speed = psc->sc1394_link_speed;
for (i = 0; i < 32; i++) {
if ((psc->sc1394_max_receive >> (i + 2)) == 0)
break;
}
sc->sc_ic.ic_hwaddr.iha_maxrec = i;
if (i < 8) {
printf("%s: maximum receive packet (%d) is too small\n",
sc->sc_dev.dv_xname, psc->sc1394_max_receive);
splx(s);
return;
}
sc->sc_ic.ic_hwaddr.iha_offset[0] = (FW_FIFO_HI >> 8) & 0xff;
sc->sc_ic.ic_hwaddr.iha_offset[1] = FW_FIFO_HI & 0xff;
sc->sc_ic.ic_hwaddr.iha_offset[2] = (FW_FIFO_LO >> 24) & 0xff;
sc->sc_ic.ic_hwaddr.iha_offset[3] = (FW_FIFO_LO >> 16) & 0xff;
sc->sc_ic.ic_hwaddr.iha_offset[4] = (FW_FIFO_LO >> 8) & 0xff;
sc->sc_ic.ic_hwaddr.iha_offset[5] = FW_FIFO_LO & 0xff;
strcpy(ifp->if_xname, sc->sc_dev.dv_xname);
ifp->if_softc = sc;
#if __NetBSD_Version__ >= 105080000
ifp->if_init = fw_init;
ifp->if_stop = fw_stop;
#endif
ifp->if_start = fw_start;
ifp->if_ioctl = fw_ioctl;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_baudrate = IF_Mbps(100 << sc->sc_ic.ic_hwaddr.iha_speed);
ifp->if_addrlen = sizeof(struct ieee1394_hwaddr);
printf(":");
for (i = 0; i < sizeof(sc->sc_ic.ic_hwaddr); i++)
printf("%c%02x", (i == 0 ? ' ' : ':'),
((u_int8_t *)&sc->sc_ic.ic_hwaddr)[i]);
printf("\n");
if_attach(ifp);
ieee1394_ifattach(ifp, &sc->sc_ic.ic_hwaddr);
(*psc->sc1394_ifinreg)
(sc->sc_dev.dv_parent, FW_FIFO_HI, FW_FIFO_LO, fw_input);
sc->sc_flags |= FWF_ATTACHED;
splx(s);
}
int
fw_detach(struct device *self, int flags)
{
struct fw_softc *sc = (struct fw_softc *)self;
struct ifnet *ifp = &sc->sc_ic.ic_if;
/* Succeed if there is no work to do. */
if ((sc->sc_flags & FWF_ATTACHED) == 0)
return 0;
ieee1394_ifdetach(ifp);
if_detach(ifp);
if (sc->sc_flags & FWF_ENABLED) {
if (sc->sc_disable)
(*sc->sc_disable)(sc);
sc->sc_flags &= ~FWF_ENABLED;
}
return 0;
}
int
fw_activate(struct device *self, enum devact act)
{
struct fw_softc *sc = (struct fw_softc *)self;
int s, error = 0;
s = splnet();
switch (act) {
case DVACT_ACTIVATE:
error = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
if_deactivate(&sc->sc_ic.ic_if);
break;
}
splx(s);
return error;
}
int
fw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
int s, error = 0;
s = splnet();
switch (cmd) {
default:
error = ieee1394_ioctl(ifp, cmd, data);
break;
}
splx(s);
return error;
}
void
fw_start(struct ifnet *ifp)
{
struct fw_softc *sc = (struct fw_softc *)ifp->if_softc;
struct ieee1394_softc *psc =
(struct ieee1394_softc *)sc->sc_dev.dv_parent;
struct mbuf *m0;
int error;
if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
return;
for (;;) {
IF_DEQUEUE(&ifp->if_snd, m0);
if (m0 == NULL)
break;
error = (*psc->sc1394_ifoutput)
(sc->sc_dev.dv_parent, m0, fw_txint);
if (error)
break;
ifp->if_flags |= IFF_OACTIVE;
}
}
void
fw_txint(struct device *self, struct mbuf *m0)
{
struct fw_softc *sc = (struct fw_softc *)self;
struct ifnet *ifp = &sc->sc_ic.ic_if;
m_freem(m0);
ifp->if_flags &= ~IFF_OACTIVE;
fw_start(ifp);
}
int
fw_init(struct ifnet *ifp)
{
ifp->if_flags |= IFF_RUNNING;
return 0;
}
void
fw_stop(struct ifnet *ifp, int disable)
{
struct mbuf *m;
for (;;) {
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
m_freem(m);
}
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}
void
fw_input(struct device *self, struct mbuf *m0)
{
struct fw_softc *sc = (struct fw_softc *)self;
struct ifnet *ifp = &sc->sc_ic.ic_if;
m0->m_pkthdr.rcvif = ifp;
(*ifp->if_input)(ifp, m0);
}