File: [local] / sys / dev / isa / if_eg.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:11:20 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: if_eg.c,v 1.30 2007/01/07 15:15:58 miod Exp $ */
/* $NetBSD: if_eg.c,v 1.26 1996/05/12 23:52:27 mycroft Exp $ */
/*
* Copyright (c) 1993 Dean Huxley <dean@fsa.ca>
* 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 following acknowledgement:
* This product includes software developed by Dean Huxley.
* 4. The name of Dean Huxley 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.
*/
/*
* Support for 3Com 3c505 Etherlink+ card.
*/
/* To do:
* - multicast
* - promiscuous
*/
#include "bpfilter.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <sys/selinfo.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/netisr.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <machine/cpu.h>
#include <machine/intr.h>
#include <dev/isa/isavar.h>
#include <dev/isa/if_egreg.h>
#include <dev/isa/elink.h>
/* for debugging convenience */
#ifdef EGDEBUG
#define DPRINTF(x) printf x
#else
#define DPRINTF(x)
#endif
#define EG_INLEN 10
#define EG_BUFLEN 0x0670
/*
* Ethernet software status per interface.
*/
struct eg_softc {
struct device sc_dev;
void *sc_ih;
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
struct arpcom sc_arpcom; /* Ethernet common part */
u_char eg_rom_major; /* Cards ROM version (major number) */
u_char eg_rom_minor; /* Cards ROM version (minor number) */
short eg_ram; /* Amount of RAM on the card */
u_char eg_pcb[64]; /* Primary Command Block buffer */
u_char eg_incount; /* Number of buffers currently used */
u_char *eg_inbuf; /* Incoming packet buffer */
u_char *eg_outbuf; /* Outgoing packet buffer */
};
int egprobe(struct device *, void *, void *);
void egattach(struct device *, struct device *, void *);
struct cfattach eg_ca = {
sizeof(struct eg_softc), egprobe, egattach
};
struct cfdriver eg_cd = {
NULL, "eg", DV_IFNET
};
int egintr(void *);
void eginit(struct eg_softc *);
int egioctl(struct ifnet *, u_long, caddr_t);
void egrecv(struct eg_softc *);
void egstart(struct ifnet *);
void egwatchdog(struct ifnet *);
void egreset(struct eg_softc *);
void egread(struct eg_softc *, caddr_t, int);
struct mbuf *egget(struct eg_softc *, caddr_t, int);
void egstop(struct eg_softc *);
static __inline void egprintpcb(struct eg_softc *);
static __inline void egprintstat(u_char);
static int egoutPCB(struct eg_softc *, u_char);
static int egreadPCBstat(struct eg_softc *, u_char);
static int egreadPCBready(struct eg_softc *);
static int egwritePCB(struct eg_softc *);
static int egreadPCB(struct eg_softc *);
/*
* Support stuff
*/
static __inline void
egprintpcb(sc)
struct eg_softc *sc;
{
int i;
for (i = 0; i < sc->eg_pcb[1] + 2; i++)
DPRINTF(("pcb[%2d] = %x\n", i, sc->eg_pcb[i]));
}
static __inline void
egprintstat(b)
u_char b;
{
DPRINTF(("%s %s %s %s %s %s %s\n",
(b & EG_STAT_HCRE)?"HCRE":"",
(b & EG_STAT_ACRF)?"ACRF":"",
(b & EG_STAT_DIR )?"DIR ":"",
(b & EG_STAT_DONE)?"DONE":"",
(b & EG_STAT_ASF3)?"ASF3":"",
(b & EG_STAT_ASF2)?"ASF2":"",
(b & EG_STAT_ASF1)?"ASF1":""));
}
static int
egoutPCB(sc, b)
struct eg_softc *sc;
u_char b;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int i;
for (i = 0; i < 4000; i++) {
if (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_HCRE) {
bus_space_write_1(bst, bsh, EG_COMMAND, b);
return 0;
}
delay(10);
}
DPRINTF(("egoutPCB failed\n"));
return (1);
}
static int
egreadPCBstat(sc, statb)
struct eg_softc *sc;
u_char statb;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int i;
for (i=0; i < 5000; i++) {
if ((bus_space_read_1(bst, bsh, EG_STATUS) & EG_PCB_STAT) !=
EG_PCB_NULL)
break;
delay(10);
}
if ((bus_space_read_1(bst, bsh, EG_STATUS) & EG_PCB_STAT) == statb)
return (0);
return (1);
}
static int
egreadPCBready(sc)
struct eg_softc *sc;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int i;
for (i=0; i < 10000; i++) {
if (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_ACRF)
return (0);
delay(5);
}
DPRINTF(("PCB read not ready status %02x\n",
bus_space_read_1(bst, bsh, EG_STATUS)));
return (1);
}
static int
egwritePCB(sc)
struct eg_softc *sc;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int i;
u_char len;
bus_space_write_1(bst, bsh, EG_CONTROL,
(bus_space_read_1(bst, bsh, EG_CONTROL) & ~EG_PCB_STAT) |
EG_PCB_NULL);
len = sc->eg_pcb[1] + 2;
for (i = 0; i < len; i++)
egoutPCB(sc, sc->eg_pcb[i]);
for (i=0; i < 4000; i++) {
if (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_HCRE)
break;
delay(10);
}
bus_space_write_1(bst, bsh, EG_CONTROL,
(bus_space_read_1(bst, bsh, EG_CONTROL) & ~EG_PCB_STAT) |
EG_PCB_DONE);
egoutPCB(sc, len);
if (egreadPCBstat(sc, EG_PCB_ACCEPT))
return (1);
return (0);
}
static int
egreadPCB(sc)
struct eg_softc *sc;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int i;
u_char b;
bus_space_write_1(bst, bsh, EG_CONTROL,
(bus_space_read_1(bst, bsh, EG_CONTROL) & ~EG_PCB_STAT) |
EG_PCB_NULL);
bzero(sc->eg_pcb, sizeof(sc->eg_pcb));
if (egreadPCBready(sc))
return (1);
sc->eg_pcb[0] = bus_space_read_1(bst, bsh, EG_COMMAND);
if (egreadPCBready(sc))
return (1);
sc->eg_pcb[1] = bus_space_read_1(bst, bsh, EG_COMMAND);
if (sc->eg_pcb[1] > 62) {
DPRINTF(("len %d too large\n", sc->eg_pcb[1]));
return (1);
}
for (i = 0; i < sc->eg_pcb[1]; i++) {
if (egreadPCBready(sc))
return (1);
sc->eg_pcb[2+i] = bus_space_read_1(bst, bsh, EG_COMMAND);
}
if (egreadPCBready(sc))
return (1);
if (egreadPCBstat(sc, EG_PCB_DONE))
return (1);
if ((b = bus_space_read_1(bst, bsh, EG_COMMAND)) != sc->eg_pcb[1] + 2) {
DPRINTF(("%d != %d\n", b, sc->eg_pcb[1] + 2));
return (1);
}
bus_space_write_1(bst, bsh, EG_CONTROL,
(bus_space_read_1(bst, bsh, EG_CONTROL) & ~EG_PCB_STAT) |
EG_PCB_ACCEPT);
return (0);
}
/*
* Real stuff
*/
int
egprobe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct eg_softc *sc = match;
struct isa_attach_args *ia = aux;
bus_space_tag_t bst = sc->sc_bst = ia->ia_iot;
bus_space_handle_t bsh;
int i;
if ((ia->ia_iobase & ~0x07f0) != 0) {
DPRINTF(("Weird iobase %x\n", ia->ia_iobase));
return (0);
}
if (bus_space_map(bst, ia->ia_iobase, EG_IO_PORTS, 0, &bsh)) {
DPRINTF(("%s: can't map I/O space\n", sc->sc_dev.dv_xname));
return (0);
}
sc->sc_bsh = bsh;
/* hard reset card */
bus_space_write_1(bst, bsh, EG_CONTROL, EG_CTL_RESET);
bus_space_write_1(bst, bsh, EG_CONTROL, 0);
for (i = 0; i < 5000; i++) {
delay(1000);
if ((bus_space_read_1(bst, bsh, EG_STATUS) & EG_PCB_STAT) ==
EG_PCB_NULL)
break;
}
if ((bus_space_read_1(bst, bsh, EG_STATUS) & EG_PCB_STAT) !=
EG_PCB_NULL) {
DPRINTF(("eg: Reset failed\n"));
goto lose;
}
sc->eg_pcb[0] = EG_CMD_GETINFO; /* Get Adapter Info */
sc->eg_pcb[1] = 0;
if (egwritePCB(sc) != 0)
goto lose;
if (egreadPCB(sc) != 0) {
egprintpcb(sc);
goto lose;
}
if (sc->eg_pcb[0] != EG_RSP_GETINFO || /* Get Adapter Info Response */
sc->eg_pcb[1] != 0x0a) {
egprintpcb(sc);
goto lose;
}
sc->eg_rom_major = sc->eg_pcb[3];
sc->eg_rom_minor = sc->eg_pcb[2];
sc->eg_ram = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8);
ia->ia_iosize = 0x08;
ia->ia_msize = 0;
bus_space_unmap(bst, bsh, EG_IO_PORTS);
return (1);
lose:
bus_space_unmap(bst, bsh, EG_IO_PORTS);
return (0);
}
void
egattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct eg_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
bus_space_tag_t bst = sc->sc_bst = ia->ia_iot;
bus_space_handle_t bsh;
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
if (bus_space_map(bst, ia->ia_iobase, EG_IO_PORTS, 0, &bsh)) {
printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
return;
}
sc->sc_bsh = bsh;
egstop(sc);
sc->eg_pcb[0] = EG_CMD_GETEADDR; /* Get Station address */
sc->eg_pcb[1] = 0;
if (egwritePCB(sc) != 0) {
DPRINTF(("write error\n"));
return;
}
if (egreadPCB(sc) != 0) {
DPRINTF(("read error\n"));
egprintpcb(sc);
return;
}
/* check Get station address response */
if (sc->eg_pcb[0] != EG_RSP_GETEADDR || sc->eg_pcb[1] != 0x06) {
DPRINTF(("parse error\n"));
egprintpcb(sc);
return;
}
bcopy(&sc->eg_pcb[2], sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN);
printf(": ROM v%d.%02d %dk address %s\n",
sc->eg_rom_major, sc->eg_rom_minor, sc->eg_ram,
ether_sprintf(sc->sc_arpcom.ac_enaddr));
sc->eg_pcb[0] = EG_CMD_SETEADDR; /* Set station address */
if (egwritePCB(sc) != 0) {
DPRINTF(("write error2\n"));
return;
}
if (egreadPCB(sc) != 0) {
DPRINTF(("read error2\n"));
egprintpcb(sc);
return;
}
if (sc->eg_pcb[0] != EG_RSP_SETEADDR || sc->eg_pcb[1] != 0x02 ||
sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0) {
DPRINTF(("parse error2\n"));
egprintpcb(sc);
return;
}
/* Initialize ifnet structure. */
bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
ifp->if_softc = sc;
ifp->if_start = egstart;
ifp->if_ioctl = egioctl;
ifp->if_watchdog = egwatchdog;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS;
IFQ_SET_READY(&ifp->if_snd);
/* Now we can attach the interface. */
if_attach(ifp);
ether_ifattach(ifp);
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_NET, egintr, sc, sc->sc_dev.dv_xname);
}
void
eginit(sc)
register struct eg_softc *sc;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
register struct ifnet *ifp = &sc->sc_arpcom.ac_if;
/* soft reset the board */
bus_space_write_1(bst, bsh, EG_CONTROL, EG_CTL_FLSH);
delay(100);
bus_space_write_1(bst, bsh, EG_CONTROL, EG_CTL_ATTN);
delay(100);
bus_space_write_1(bst, bsh, EG_CONTROL, 0);
delay(200);
sc->eg_pcb[0] = EG_CMD_CONFIG82586; /* Configure 82586 */
sc->eg_pcb[1] = 2;
sc->eg_pcb[2] = 3; /* receive broadcast & multicast */
sc->eg_pcb[3] = 0;
if (egwritePCB(sc) != 0)
DPRINTF(("write error3\n"));
if (egreadPCB(sc) != 0) {
DPRINTF(("read error3\n"));
egprintpcb(sc);
} else if (sc->eg_pcb[2] != 0 || sc->eg_pcb[3] != 0)
printf("%s: configure card command failed\n",
sc->sc_dev.dv_xname);
if (sc->eg_inbuf == 0)
sc->eg_inbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
sc->eg_incount = 0;
if (sc->eg_outbuf == 0)
sc->eg_outbuf = malloc(EG_BUFLEN, M_TEMP, M_NOWAIT);
bus_space_write_1(bst, bsh, EG_CONTROL, EG_CTL_CMDE);
sc->eg_incount = 0;
egrecv(sc);
/* Interface is now `running', with no output active. */
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
/* Attempt to start output, if any. */
egstart(ifp);
}
void
egrecv(sc)
struct eg_softc *sc;
{
while (sc->eg_incount < EG_INLEN) {
sc->eg_pcb[0] = EG_CMD_RECVPACKET;
sc->eg_pcb[1] = 0x08;
sc->eg_pcb[2] = 0; /* address not used.. we send zero */
sc->eg_pcb[3] = 0;
sc->eg_pcb[4] = 0;
sc->eg_pcb[5] = 0;
sc->eg_pcb[6] = EG_BUFLEN & 0xff; /* our buffer size */
sc->eg_pcb[7] = (EG_BUFLEN >> 8) & 0xff;
sc->eg_pcb[8] = 0; /* timeout, 0 == none */
sc->eg_pcb[9] = 0;
if (egwritePCB(sc) != 0)
break;
sc->eg_incount++;
}
}
void
egstart(ifp)
struct ifnet *ifp;
{
struct eg_softc *sc = ifp->if_softc;
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
struct mbuf *m0, *m;
caddr_t buffer;
int len;
u_short *ptr;
u_int i;
/* Don't transmit if interface is busy or not running */
if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
return;
loop:
/* Dequeue the next datagram. */
IFQ_DEQUEUE(&ifp->if_snd, m0);
if (m0 == 0)
return;
ifp->if_flags |= IFF_OACTIVE;
/* We need to use m->m_pkthdr.len, so require the header */
if ((m0->m_flags & M_PKTHDR) == 0)
panic("egstart: no header mbuf");
len = max(m0->m_pkthdr.len, ETHER_MIN_LEN);
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m0, BPF_DIRECTION_OUT);
#endif
sc->eg_pcb[0] = EG_CMD_SENDPACKET;
sc->eg_pcb[1] = 0x06;
sc->eg_pcb[2] = 0; /* address not used, we send zero */
sc->eg_pcb[3] = 0;
sc->eg_pcb[4] = 0;
sc->eg_pcb[5] = 0;
sc->eg_pcb[6] = len; /* length of packet */
sc->eg_pcb[7] = len >> 8;
if (egwritePCB(sc) != 0) {
DPRINTF(("egwritePCB in egstart failed\n"));
ifp->if_oerrors++;
ifp->if_flags &= ~IFF_OACTIVE;
m_freem(m0);
goto loop;
}
buffer = sc->eg_outbuf;
for (m = m0; m != 0; m = m->m_next) {
bcopy(mtod(m, caddr_t), buffer, m->m_len);
buffer += m->m_len;
}
if (len > m0->m_pkthdr.len)
bzero(buffer, len - m0->m_pkthdr.len);
/* set direction bit: host -> adapter */
bus_space_write_1(bst, bsh, EG_CONTROL,
bus_space_read_1(bst, bsh, EG_CONTROL) & ~EG_CTL_DIR);
for (ptr = (u_short *)sc->eg_outbuf; len > 0; len -= 2) {
bus_space_write_2(bst, bsh, EG_DATA, *ptr++);
for (i = 10000; i != 0; i--) {
if (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_HRDY)
break;
delay(10);
}
if (i == 0) {
printf("%s: start failed\n", sc->sc_dev.dv_xname);
break;
}
}
m_freem(m0);
}
int
egintr(arg)
void *arg;
{
struct eg_softc *sc = arg;
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
int ret = 0;
int i, len;
u_short *ptr;
while (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_ACRF) {
ret = 1;
egreadPCB(sc);
switch (sc->eg_pcb[0]) {
case EG_RSP_RECVPACKET:
len = sc->eg_pcb[6] | (sc->eg_pcb[7] << 8);
/* Set direction bit : Adapter -> host */
bus_space_write_1(bst, bsh, EG_CONTROL,
bus_space_read_1(bst, bsh, EG_CONTROL) |
EG_CTL_DIR);
for (ptr = (u_short *)sc->eg_inbuf; len > 0; len -= 2) {
for (i = 10000; i != 0; i--) {
if (bus_space_read_1(bst, bsh, EG_STATUS) & EG_STAT_HRDY)
break;
delay(10);
}
if (i == 0) {
printf("%s: receive failed\n",
sc->sc_dev.dv_xname);
break;
}
*ptr++ = bus_space_read_2(bst, bsh, EG_DATA);
}
if (len <= 0) {
len = sc->eg_pcb[8] | (sc->eg_pcb[9] << 8);
egread(sc, sc->eg_inbuf, len);
sc->eg_incount--;
egrecv(sc);
}
break;
case EG_RSP_SENDPACKET:
if (sc->eg_pcb[6] || sc->eg_pcb[7]) {
DPRINTF(("packet dropped\n"));
sc->sc_arpcom.ac_if.if_oerrors++;
} else
sc->sc_arpcom.ac_if.if_opackets++;
sc->sc_arpcom.ac_if.if_collisions +=
sc->eg_pcb[8] & 0xf;
sc->sc_arpcom.ac_if.if_flags &= ~IFF_OACTIVE;
egstart(&sc->sc_arpcom.ac_if);
break;
case EG_RSP_GETSTATS:
DPRINTF(("Card Statistics\n"));
bcopy(&sc->eg_pcb[2], &i, sizeof(i));
DPRINTF(("Receive Packets %d\n", i));
bcopy(&sc->eg_pcb[6], &i, sizeof(i));
DPRINTF(("Transmit Packets %d\n", i));
DPRINTF(("CRC errors %d\n", *(short *)&sc->eg_pcb[10]));
DPRINTF(("alignment errors %d\n",
*(short *)&sc->eg_pcb[12]));
DPRINTF(("no resources errors %d\n",
*(short *)&sc->eg_pcb[14]));
DPRINTF(("overrun errors %d\n",
*(short *)&sc->eg_pcb[16]));
break;
default:
DPRINTF(("egintr: Unknown response %x??\n",
sc->eg_pcb[0]));
egprintpcb(sc);
break;
}
}
return (ret);
}
/*
* Pass a packet up to the higher levels.
*/
void
egread(sc, buf, len)
struct eg_softc *sc;
caddr_t buf;
int len;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct mbuf *m;
if (len <= sizeof(struct ether_header) ||
len > ETHER_MAX_LEN) {
printf("%s: invalid packet size %d; dropping\n",
sc->sc_dev.dv_xname, len);
ifp->if_ierrors++;
return;
}
/* Pull packet off interface. */
m = egget(sc, buf, len);
if (m == 0) {
ifp->if_ierrors++;
return;
}
ifp->if_ipackets++;
#if NBPFILTER > 0
/*
* Check if there's a BPF listener on this interface.
* If so, hand off the raw packet to BPF.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_IN);
#endif
ether_input_mbuf(ifp, m);
}
/*
* convert buf into mbufs
*/
struct mbuf *
egget(sc, buf, totlen)
struct eg_softc *sc;
caddr_t buf;
int totlen;
{
struct ifnet *ifp = &sc->sc_arpcom.ac_if;
struct mbuf *top, **mp, *m;
int len;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == 0)
return (0);
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = totlen;
len = MHLEN;
top = 0;
mp = ⊤
while (totlen > 0) {
if (top) {
MGET(m, M_DONTWAIT, MT_DATA);
if (m == 0) {
m_freem(top);
return (0);
}
len = MLEN;
}
if (totlen >= MINCLSIZE) {
MCLGET(m, M_DONTWAIT);
if (m->m_flags & M_EXT)
len = MCLBYTES;
}
m->m_len = len = min(totlen, len);
bcopy((caddr_t)buf, mtod(m, caddr_t), len);
buf += len;
totlen -= len;
*mp = m;
mp = &m->m_next;
}
return (top);
}
int
egioctl(ifp, cmd, data)
register struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
struct eg_softc *sc = ifp->if_softc;
struct ifaddr *ifa = (struct ifaddr *)data;
int s, error = 0;
s = splnet();
if ((error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data)) > 0) {
splx(s);
return (error);
}
switch (cmd) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
eginit(sc);
arp_ifinit(&sc->sc_arpcom, ifa);
break;
#endif
default:
eginit(sc);
break;
}
break;
case SIOCSIFFLAGS:
if ((ifp->if_flags & IFF_UP) == 0 &&
(ifp->if_flags & IFF_RUNNING) != 0) {
/*
* If interface is marked down and it is running, then
* stop it.
*/
egstop(sc);
ifp->if_flags &= ~IFF_RUNNING;
} else if ((ifp->if_flags & IFF_UP) != 0 &&
(ifp->if_flags & IFF_RUNNING) == 0) {
/*
* If interface is marked up and it is stopped, then
* start it.
*/
eginit(sc);
} else {
sc->eg_pcb[0] = EG_CMD_GETSTATS;
sc->eg_pcb[1] = 0;
if (egwritePCB(sc) != 0)
DPRINTF(("write error\n"));
/*
* XXX deal with flags changes:
* IFF_MULTICAST, IFF_PROMISC,
* IFF_LINK0, IFF_LINK1,
*/
}
break;
default:
error = EINVAL;
break;
}
splx(s);
return (error);
}
void
egreset(sc)
struct eg_softc *sc;
{
int s;
DPRINTF(("egreset()\n"));
s = splnet();
egstop(sc);
eginit(sc);
splx(s);
}
void
egwatchdog(ifp)
struct ifnet *ifp;
{
struct eg_softc *sc = ifp->if_softc;
log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname);
sc->sc_arpcom.ac_if.if_oerrors++;
egreset(sc);
}
void
egstop(sc)
register struct eg_softc *sc;
{
bus_space_tag_t bst = sc->sc_bst;
bus_space_handle_t bsh = sc->sc_bsh;
bus_space_write_1(bst, bsh, EG_CONTROL, 0);
}