433 lines
12 KiB
C
433 lines
12 KiB
C
/* $NetBSD: if_le_vme.c,v 1.4 1997/03/17 13:29:05 leo Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 Leo Weppelman. All rights reserved.
|
|
* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Ralph Campbell and Rick Macklem.
|
|
*
|
|
* 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 University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)if_le.c 8.2 (Berkeley) 11/16/93
|
|
*/
|
|
|
|
#include "bpfilter.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_ether.h>
|
|
|
|
#ifdef INET
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_inarp.h>
|
|
#endif
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/iomap.h>
|
|
#include <machine/scu.h>
|
|
|
|
#include <atari/atari/device.h>
|
|
#include <atari/atari/intr.h>
|
|
|
|
#include <dev/ic/am7990reg.h>
|
|
#include <dev/ic/am7990var.h>
|
|
|
|
#include <atari/vme/vmevar.h>
|
|
#include <atari/vme/if_levar.h>
|
|
|
|
struct le_addresses {
|
|
u_long reg_addr;
|
|
u_long mem_addr;
|
|
int irq;
|
|
} lestd[] = {
|
|
{ 0xfe00fff0, 0xfe010000, IRQUNK }, /* Riebl VME */
|
|
{ 0xffcffff0, 0xffcf0000, 5 }, /* PAM VME */
|
|
{ 0xfecffff0, 0xfecf0000, 5 } /* Rhotron VME */
|
|
};
|
|
|
|
#define NLESTD (sizeof(lestd) / sizeof(lestd[0]))
|
|
|
|
/*
|
|
* All cards have 64KB RAM. However.... On the Riebl cards the area
|
|
* between the offsets 0xee70-0xeec0 is used to store config data.
|
|
*/
|
|
#define MEMSIZE (64*1024)
|
|
|
|
/*
|
|
* Default mac for RIEBL cards without a (working) battery. The first 4 bytes
|
|
* are the manufacturer id.
|
|
*/
|
|
static u_char riebl_def_mac[] = {
|
|
0x00, 0x00, 0x36, 0x04, 0x00, 0x00
|
|
};
|
|
|
|
static int le_intr __P((struct le_softc *, int));
|
|
static void lepseudointr __P((struct le_softc *, void *));
|
|
static int le_vme_match __P((struct device *, struct cfdata *, void *));
|
|
static void le_vme_attach __P((struct device *, struct device *, void *));
|
|
static int probe_addresses __P((bus_space_tag_t *, bus_space_tag_t *,
|
|
bus_space_handle_t *, bus_space_handle_t *));
|
|
static void riebl_skip_reserved_area __P((struct am7990_softc *));
|
|
|
|
struct cfattach le_vme_ca = {
|
|
sizeof(struct le_softc), le_vme_match, le_vme_attach
|
|
};
|
|
|
|
hide void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t));
|
|
hide u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t));
|
|
|
|
hide void
|
|
lewrcsr(sc, port, val)
|
|
struct am7990_softc *sc;
|
|
u_int16_t port, val;
|
|
{
|
|
struct le_softc *lesc = (struct le_softc *)sc;
|
|
int s;
|
|
|
|
s = splhigh();
|
|
bus_space_write_2(lesc->sc_iot, lesc->sc_ioh, LER_RAP, port);
|
|
bus_space_write_2(lesc->sc_iot, lesc->sc_ioh, LER_RDP, val);
|
|
splx(s);
|
|
}
|
|
|
|
hide u_int16_t
|
|
lerdcsr(sc, port)
|
|
struct am7990_softc *sc;
|
|
u_int16_t port;
|
|
{
|
|
struct le_softc *lesc = (struct le_softc *)sc;
|
|
u_int16_t val;
|
|
int s;
|
|
|
|
s = splhigh();
|
|
bus_space_write_2(lesc->sc_iot, lesc->sc_ioh, LER_RAP, port);
|
|
val = bus_space_read_2(lesc->sc_iot, lesc->sc_ioh, LER_RDP);
|
|
splx(s);
|
|
|
|
return (val);
|
|
}
|
|
|
|
static int
|
|
le_vme_match(parent, cfp, aux)
|
|
struct device *parent;
|
|
struct cfdata *cfp;
|
|
void *aux;
|
|
{
|
|
struct vme_attach_args *va = aux;
|
|
int i;
|
|
bus_space_tag_t iot;
|
|
bus_space_tag_t memt;
|
|
bus_space_handle_t ioh;
|
|
bus_space_handle_t memh;
|
|
|
|
iot = va->va_iot;
|
|
memt = va->va_memt;
|
|
|
|
for (i = 0; i < NLESTD; i++) {
|
|
struct le_addresses *le_ap = &lestd[i];
|
|
int found = 0;
|
|
|
|
if ((va->va_iobase != IOBASEUNK)
|
|
&& (va->va_iobase != le_ap->reg_addr))
|
|
continue;
|
|
|
|
if ((va->va_maddr != MADDRUNK)
|
|
&& (va->va_maddr != le_ap->mem_addr))
|
|
continue;
|
|
|
|
if ((le_ap->irq != IRQUNK) && (va->va_irq != le_ap->irq))
|
|
continue;
|
|
|
|
if (bus_space_map(iot, le_ap->reg_addr, 16, 0, &ioh)) {
|
|
printf("leprobe: cannot map io-area\n");
|
|
return (0);
|
|
}
|
|
if (bus_space_map(memt, le_ap->mem_addr, MEMSIZE, 0, &memh)) {
|
|
bus_space_unmap(iot, (caddr_t)le_ap->reg_addr, 16);
|
|
printf("leprobe: cannot map memory-area\n");
|
|
return (0);
|
|
}
|
|
found = probe_addresses(&iot, &memt, &ioh, &memh);
|
|
bus_space_unmap(iot, (caddr_t)le_ap->reg_addr, 16);
|
|
bus_space_unmap(memt, (caddr_t)le_ap->mem_addr, 8*NBPG);
|
|
|
|
if (found) {
|
|
va->va_iobase = le_ap->reg_addr;
|
|
va->va_iosize = 16;
|
|
va->va_maddr = le_ap->mem_addr;
|
|
va->va_msize = MEMSIZE;
|
|
if (va->va_irq == IRQUNK)
|
|
va->va_irq = le_ap->irq;
|
|
return 1;
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
probe_addresses(iot, memt, ioh, memh)
|
|
bus_space_tag_t *iot;
|
|
bus_space_tag_t *memt;
|
|
bus_space_handle_t *ioh;
|
|
bus_space_handle_t *memh;
|
|
{
|
|
/*
|
|
* Test accesibility of register and memory area
|
|
*/
|
|
if(!bus_space_peek_2(*iot, *ioh, LER_RDP))
|
|
return 0;
|
|
if(!bus_space_peek_1(*memt, *memh, 0))
|
|
return 0;
|
|
|
|
/*
|
|
* Test for writable memory
|
|
*/
|
|
bus_space_write_2(*memt, *memh, 0, 0xa5a5);
|
|
if (bus_space_read_2(*memt, *memh, 0) != 0xa5a5)
|
|
return 0;
|
|
|
|
/*
|
|
* Test writability of selector port.
|
|
*/
|
|
bus_space_write_2(*iot, *ioh, LER_RAP, LE_CSR1);
|
|
if (bus_space_read_2(*iot, *ioh, LER_RAP) != LE_CSR1)
|
|
return 0;
|
|
|
|
/*
|
|
* Do a small register test
|
|
*/
|
|
bus_space_write_2(*iot, *ioh, LER_RAP, LE_CSR0);
|
|
bus_space_write_2(*iot, *ioh, LER_RDP, LE_C0_INIT | LE_C0_STOP);
|
|
if (bus_space_read_2(*iot, *ioh, LER_RDP) != LE_C0_STOP)
|
|
return 0;
|
|
|
|
bus_space_write_2(*iot, *ioh, LER_RDP, LE_C0_STOP);
|
|
if (bus_space_read_2(*iot, *ioh, LER_RDP) != LE_C0_STOP)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Interrupt mess. Because the card's interrupt is hardwired to either
|
|
* ipl5 or ipl3 (mostly on ipl5) and raising splnet to spl5() just won't do
|
|
* (it kills the serial at the least), we use a 2-level interrupt sceme. The
|
|
* card interrupt is routed to 'le_intr'. If the previous ipl was below
|
|
* splnet, just call the mi-function. If not, save the interrupt status,
|
|
* turn off card interrupts (the card is *very* persistent) and arrange
|
|
* for a softint 'callback' through 'lepseudointr'.
|
|
*/
|
|
static int
|
|
le_intr(lesc, sr)
|
|
struct le_softc *lesc;
|
|
int sr;
|
|
{
|
|
struct am7990_softc *sc = &lesc->sc_am7990;
|
|
u_int16_t csr0;
|
|
|
|
if ((sr & PSL_IPL) < IPL_NET)
|
|
am7990_intr(sc);
|
|
else {
|
|
sc->sc_saved_csr0 = csr0 = lerdcsr(sc, LE_CSR0);
|
|
lewrcsr(sc, LE_CSR0, csr0 & ~LE_C0_INEA);
|
|
add_sicallback((si_farg)lepseudointr, lesc, sc);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static void
|
|
lepseudointr(lesc, sc)
|
|
struct le_softc *lesc;
|
|
void *sc;
|
|
{
|
|
int s;
|
|
|
|
s = splx(lesc->sc_splval);
|
|
am7990_intr(sc);
|
|
splx(s);
|
|
}
|
|
|
|
static void
|
|
le_vme_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct le_softc *lesc = (struct le_softc *)self;
|
|
struct am7990_softc *sc = &lesc->sc_am7990;
|
|
struct vme_attach_args *va = aux;
|
|
bus_space_handle_t ioh;
|
|
bus_space_handle_t memh;
|
|
int i;
|
|
|
|
printf("\n%s: ", sc->sc_dev.dv_xname);
|
|
|
|
if (bus_space_map(va->va_iot, va->va_iobase, va->va_iosize, 0, &ioh))
|
|
panic("leattach: cannot map io-area\n");
|
|
if (bus_space_map(va->va_memt, va->va_maddr, va->va_msize, 0, &memh))
|
|
panic("leattach: cannot map mem-area\n");
|
|
|
|
lesc->sc_iot = va->va_iot;
|
|
lesc->sc_ioh = ioh;
|
|
lesc->sc_memt = va->va_memt;
|
|
lesc->sc_memh = memh;
|
|
lesc->sc_splval = (va->va_irq << 8) | PSL_S; /* XXX */
|
|
|
|
/*
|
|
* Go on to find board type
|
|
*/
|
|
if (bus_space_peek_1(va->va_iot, ioh, LER_EEPROM)) {
|
|
printf("PAM card");
|
|
lesc->sc_type = LE_PAM;
|
|
bus_space_read_1(va->va_iot, ioh, LER_MEME);
|
|
}
|
|
else {
|
|
printf("Riebl card");
|
|
if(bus_space_read_4(va->va_memt, memh, RIEBL_MAGIC_ADDR)
|
|
== RIEBL_MAGIC)
|
|
lesc->sc_type = LE_NEW_RIEBL;
|
|
else {
|
|
printf("(without battery) ");
|
|
lesc->sc_type = LE_OLD_RIEBL;
|
|
}
|
|
}
|
|
|
|
sc->sc_copytodesc = am7990_copytobuf_contig;
|
|
sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
|
|
sc->sc_copytobuf = am7990_copytobuf_contig;
|
|
sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
|
|
sc->sc_zerobuf = am7990_zerobuf_contig;
|
|
|
|
sc->sc_rdcsr = lerdcsr;
|
|
sc->sc_wrcsr = lewrcsr;
|
|
sc->sc_hwinit = NULL;
|
|
sc->sc_conf3 = LE_C3_BSWP;
|
|
sc->sc_addr = 0;
|
|
sc->sc_memsize = va->va_msize;
|
|
sc->sc_mem = (void *)memh; /* XXX */
|
|
|
|
/*
|
|
* Get MAC address
|
|
*/
|
|
switch (lesc->sc_type) {
|
|
case LE_OLD_RIEBL:
|
|
bcopy(riebl_def_mac, sc->sc_enaddr,
|
|
sizeof(sc->sc_enaddr));
|
|
break;
|
|
case LE_NEW_RIEBL:
|
|
for (i = 0; i < sizeof(sc->sc_enaddr); i++)
|
|
sc->sc_enaddr[i] =
|
|
bus_space_read_1(va->va_memt, memh, i + RIEBL_MAC_ADDR);
|
|
break;
|
|
case LE_PAM:
|
|
i = bus_space_read_1(va->va_iot, ioh, LER_EEPROM);
|
|
for (i = 0; i < sizeof(sc->sc_enaddr); i++) {
|
|
sc->sc_enaddr[i] =
|
|
(bus_space_read_2(va->va_memt, memh, 2 * i) << 4) |
|
|
(bus_space_read_2(va->va_memt, memh, 2 * i + 1) & 0xf);
|
|
}
|
|
i = bus_space_read_1(va->va_iot, ioh, LER_MEME);
|
|
break;
|
|
}
|
|
|
|
am7990_config(sc);
|
|
|
|
if ((lesc->sc_type == LE_OLD_RIEBL) || (lesc->sc_type == LE_NEW_RIEBL))
|
|
riebl_skip_reserved_area(sc);
|
|
|
|
/*
|
|
* XXX: We always use uservector 64....
|
|
*/
|
|
if ((lesc->sc_intr = intr_establish(64, USER_VEC, 0,
|
|
(hw_ifun_t)le_intr, lesc)) == NULL) {
|
|
printf("le_vme_attach: Can't establish interrupt\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Notify the card of the vector
|
|
*/
|
|
switch (lesc->sc_type) {
|
|
case LE_OLD_RIEBL:
|
|
case LE_NEW_RIEBL:
|
|
bus_space_write_2(va->va_memt, memh, RIEBL_IVEC_ADDR,
|
|
64 + 64);
|
|
break;
|
|
case LE_PAM:
|
|
bus_space_write_1(va->va_iot, ioh, LER_IVEC, 64 + 64);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Unmask the VME-interrupt we're on
|
|
*/
|
|
if (machineid & ATARI_TT)
|
|
SCU->vme_mask |= 1 << va->va_irq;
|
|
}
|
|
|
|
/*
|
|
* True if 'addr' containe within [start,len]
|
|
*/
|
|
#define WITHIN(start, len, addr) \
|
|
((addr >= start) && ((addr) <= ((start) + (len))))
|
|
static void
|
|
riebl_skip_reserved_area(sc)
|
|
struct am7990_softc *sc;
|
|
{
|
|
int offset = 0;
|
|
int i;
|
|
|
|
for(i = 0; i < sc->sc_nrbuf; i++) {
|
|
if (WITHIN(sc->sc_rbufaddr[i], LEBLEN, RIEBL_RES_START)
|
|
|| WITHIN(sc->sc_rbufaddr[i], LEBLEN, RIEBL_RES_END)) {
|
|
offset = RIEBL_RES_END - sc->sc_rbufaddr[i];
|
|
}
|
|
sc->sc_rbufaddr[i] += offset;
|
|
}
|
|
|
|
for(i = 0; i < sc->sc_ntbuf; i++) {
|
|
if (WITHIN(sc->sc_tbufaddr[i], LEBLEN, RIEBL_RES_START)
|
|
|| WITHIN(sc->sc_tbufaddr[i], LEBLEN, RIEBL_RES_END)) {
|
|
offset = RIEBL_RES_END - sc->sc_tbufaddr[i];
|
|
}
|
|
sc->sc_tbufaddr[i] += offset;
|
|
}
|
|
}
|