289 lines
7.3 KiB
C
289 lines
7.3 KiB
C
/* $NetBSD: if_ie_subr.c,v 1.2 1994/12/13 18:31:48 gwr Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Gordon W. Ross
|
|
* 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 Gordon Ross
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Machine-dependent glue for the Intel Ethernet (ie) driver.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <net/if.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
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/isr.h>
|
|
#include <machine/obio.h>
|
|
#include <machine/idprom.h>
|
|
/* #include <machine/vme.h> */
|
|
|
|
#include "if_iereg.h"
|
|
#include "if_ie.h"
|
|
|
|
static void ie_obreset __P((struct ie_softc *));
|
|
static void ie_obattend __P((struct ie_softc *));
|
|
static void ie_obrun __P((struct ie_softc *));
|
|
static void ie_vmereset __P((struct ie_softc *));
|
|
static void ie_vmeattend __P((struct ie_softc *));
|
|
static void ie_vmerun __P((struct ie_softc *));
|
|
|
|
|
|
int
|
|
ie_md_match(parent, vcf, args)
|
|
struct device *parent;
|
|
void *vcf, *args;
|
|
{
|
|
struct cfdata *cf = vcf;
|
|
struct confargs *ca = args;
|
|
int x;
|
|
|
|
switch (ca->ca_bustype) {
|
|
|
|
case BUS_OBIO:
|
|
if (ca->ca_paddr == -1)
|
|
ca->ca_paddr = OBIO_INTEL_ETHER;
|
|
sz = 1;
|
|
break;
|
|
|
|
case BUS_VME16:
|
|
/* No default VME address. */
|
|
if (ca->ca_paddr == -1)
|
|
return(0);
|
|
sz = 2;
|
|
break;
|
|
|
|
default:
|
|
return (0);
|
|
}
|
|
|
|
/* Default interrupt level. */
|
|
if (ca->ca_intpri == -1)
|
|
ca->ca_intpri = 3;
|
|
|
|
/* The peek returns non-zero on bus error. */
|
|
x = bus_peek(ca->ca_bustype, ca->ca_paddr, sz);
|
|
return (x != -1);
|
|
}
|
|
|
|
void
|
|
ie_md_attach(parent, self, args)
|
|
struct device *parent;
|
|
struct device *self;
|
|
void *args;
|
|
{
|
|
struct ie_softc *sc = (void *) self;
|
|
struct confargs *ca = args;
|
|
caddr_t mem, reg;
|
|
|
|
/*
|
|
* *note*: we don't detect the difference between a VME3E and
|
|
* a multibus/vme card. if you want to use a 3E you'll have
|
|
* to fix this.
|
|
*/
|
|
|
|
switch (ca->ca_bustype) {
|
|
case BUS_OBIO:
|
|
sc->hard_type = IE_OBIO;
|
|
sc->reset_586 = ie_obreset;
|
|
sc->chan_attn = ie_obattend;
|
|
sc->run_586 = ie_obrun;
|
|
sc->memcopy = bcopy;
|
|
sc->memzero = bzero;
|
|
sc->sc_msize = 0x10000; /* XXX */
|
|
|
|
/* Map in the control register. */
|
|
reg = obio_alloc(ca->ca_paddr, OBIO_INTEL_ETHER_SIZE);
|
|
if (reg == NULL)
|
|
panic(": not enough obio space\n");
|
|
sc->sc_reg = reg;
|
|
|
|
/* Allocate "shared" memory (DVMA space). */
|
|
mem = dvma_malloc(sc->sc_msize);
|
|
if (mem == NULL)
|
|
panic(": not enough dvma space");
|
|
sc->sc_maddr = mem;
|
|
|
|
/* Install interrupt handler. */
|
|
isr_add_autovect(ie_intr, (void *)sc, ca->ca_intpri);
|
|
|
|
/* XXX - to do... */
|
|
printf("unsupported (for now)\n");
|
|
return;
|
|
|
|
|
|
#if 0 /* not yet... */
|
|
case BUS_VME16: {
|
|
volatile struct ievme *iev;
|
|
u_long rampaddr;
|
|
int lcv;
|
|
|
|
sc->hard_type = IE_VME;
|
|
sc->reset_586 = ie_vmereset;
|
|
sc->chan_attn = ie_vmeattend;
|
|
sc->run_586 = ie_vmerun;
|
|
sc->memcopy = wcopy;
|
|
sc->memzero = wzero;
|
|
sc->sc_msize = 0x10000; /* XXX */
|
|
sc->sc_reg = bus_mapin(ca->ca_paddr, sizeof(struct ievme), ca);
|
|
|
|
/* XXX - Move this gunk into a separate function? */
|
|
|
|
iev = (volatile struct ievme *) sc->sc_reg;
|
|
/* top 12 bits */
|
|
rampaddr = ca->ca_paddr & 0xfff00000;
|
|
/* 4 more */
|
|
rampaddr = rampaddr | ((iev->status & IEVME_HADDR) << 16);
|
|
sc->sc_maddr = bus_mapin((caddr_t)rampaddr, sc->sc_msize, aux);
|
|
sc->sc_iobase = sc->sc_maddr;
|
|
iev->pectrl = iev->pectrl | IEVME_PARACK; /* clear to start */
|
|
|
|
/*
|
|
* set up mappings, direct map except for last page
|
|
* which is mapped at zero and at high address (for
|
|
* scp), zero ram
|
|
*/
|
|
|
|
for (lcv = 0; lcv < IEVME_MAPSZ - 1; lcv++)
|
|
iev->pgmap[lcv] = IEVME_SBORDR | IEVME_OBMEM | lcv;
|
|
iev->pgmap[IEVME_MAPSZ - 1] = IEVME_SBORDR | IEVME_OBMEM | 0;
|
|
(sc->memzero)(sc->sc_maddr, sc->sc_msize);
|
|
|
|
/*
|
|
* set up pointers to data structures and buffer area.
|
|
* scp is in double mapped page... get offset into page
|
|
* and add to sc_maddr.
|
|
*/
|
|
sc->scp = (volatile struct ie_sys_conf_ptr *)
|
|
(sc->sc_maddr + (IE_SCP_ADDR & (IEVME_PAGESIZE - 1)));
|
|
sc->iscp = (volatile struct ie_int_sys_conf_ptr *)
|
|
sc->sc_maddr; /* iscp @ location zero */
|
|
sc->scb = (volatile struct ie_sys_ctl_block *)
|
|
sc->sc_maddr + sizeof(struct ie_int_sys_conf_ptr);
|
|
/* scb follows iscp */
|
|
|
|
/*
|
|
* rest of first page is unused, rest of ram
|
|
* for buffers
|
|
*/
|
|
sc->buf_area = sc->sc_maddr + IEVME_PAGESIZE;
|
|
sc->buf_area_sz = sc->sc_msize - IEVME_PAGESIZE;
|
|
|
|
isr_add_vectored(ieintr, (void *)sc,
|
|
ca->ca_intpri,
|
|
ca->ca_intvec);
|
|
}
|
|
break;
|
|
|
|
#endif /* not yet... */
|
|
|
|
default:
|
|
printf("unknown\n");
|
|
return;
|
|
}
|
|
|
|
idprom_etheraddr(sc->sc_addr); /* ethernet addr */
|
|
}
|
|
|
|
|
|
/*
|
|
* MULTIBUS/VME support
|
|
*/
|
|
void
|
|
ie_vmereset(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ievme *iev = (struct ievme *) sc->sc_reg;
|
|
iev->status = IEVME_RESET;
|
|
delay(100); /* XXX could be shorter? */
|
|
iev->status = 0;
|
|
}
|
|
|
|
void
|
|
ie_vmeattend(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ievme *iev = (struct ievme *) sc->sc_reg;
|
|
|
|
iev->status |= IEVME_ATTEN; /* flag! */
|
|
iev->status &= ~IEVME_ATTEN; /* down. */
|
|
}
|
|
|
|
void
|
|
ie_vmerun(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ievme *iev = (struct ievme *) sc->sc_reg;
|
|
|
|
iev->status |= (IEVME_ONAIR | IEVME_IENAB | IEVME_PEINT);
|
|
}
|
|
|
|
/*
|
|
* onboard ie support
|
|
*/
|
|
void
|
|
ie_obreset(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
|
|
ieo->obctrl = 0;
|
|
delay(100); /* XXX could be shorter? */
|
|
ieo->obctrl = IEOB_NORSET;
|
|
}
|
|
void
|
|
ie_obattend(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
|
|
|
|
ieo->obctrl |= IEOB_ATTEN; /* flag! */
|
|
ieo->obctrl &= ~IEOB_ATTEN; /* down. */
|
|
}
|
|
|
|
void
|
|
ie_obrun(sc)
|
|
struct ie_softc *sc;
|
|
{
|
|
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
|
|
|
|
ieo->obctrl |= (IEOB_ONAIR|IEOB_IENAB|IEOB_NORSET);
|
|
}
|