NetBSD/sys/arch/sun3/dev/if_ie_subr.c

289 lines
7.2 KiB
C

/* $NetBSD: if_ie_subr.c,v 1.3 1994/12/15 21:08:10 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 "i82586.h"
#include "if_ie.h"
#include "if_ie_subr.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, sz;
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, dvma_malloc();
/*
* *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_iobase = (caddr_t)0xf000000; /* XXX */
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;
sc->scp = (volatile struct ie_sys_conf_ptr *)
(sc->sc_iobase + IE_SCP_ADDR);
/* Install interrupt handler. */
isr_add_autovect(ie_intr, (void *)sc, ca->ca_intpri);
break;
#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 */
sc->scp = (volatile struct ie_sys_conf_ptr *)
(sc->sc_iobase + (IE_SCP_ADDR & (IEVME_PAGESIZE - 1)));
/*
* 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);
isr_add_vectored(ieintr, (void *)sc,
ca->ca_intpri,
ca->ca_intvec);
}
break;
#endif /* not yet... */
default:
printf("unknown\n");
return;
}
/*
* set up pointers to data structures and buffer area.
*/
sc->iscp = (volatile struct ie_int_sys_conf_ptr *)
sc->sc_maddr;
sc->scb = (volatile struct ie_sys_ctl_block *)
sc->sc_maddr + sizeof(struct ie_int_sys_conf_ptr);
/*
* 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;
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);
}