NetBSD/sys/dev/isa/if_le.c

457 lines
10 KiB
C

/* $NetBSD: if_le.c,v 1.41 1996/04/11 22:29:34 cgd Exp $ */
/*-
* 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>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <vm/vm.h>
#include <machine/cpu.h>
#include <machine/pio.h>
#include "isa.h"
#include "pci.h"
#if NISA > 0
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <i386/isa/isa_machdep.h>
#endif
#if NPCI > 0
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#endif
#include <dev/isa/if_levar.h>
#include <dev/ic/am7990reg.h>
#define LE_NEED_BUF_CONTIG
#include <dev/ic/am7990var.h>
char *card_type[] = {"unknown", "BICC Isolan", "NE2100", "DEPCA", "PCnet-ISA", "PCnet-PCI"};
#define LE_SOFTC(unit) le_cd.cd_devs[unit]
#define LE_DELAY(x) delay(x)
int leprobe __P((struct device *, void *, void *));
int depca_probe __P((struct le_softc *, struct isa_attach_args *));
int ne2100_probe __P((struct le_softc *, struct isa_attach_args *));
int bicc_probe __P((struct le_softc *, struct isa_attach_args *));
int lance_probe __P((struct le_softc *));
void leattach __P((struct device *, struct device *, void *));
int leintr __P((void *));
int leintredge __P((void *));
void leshutdown __P((void *));
/* XXX the following two structs should be different. */
struct cfattach le_isa_ca = {
sizeof(struct le_softc), leprobe, leattach
};
struct cfattach le_pci_ca = {
sizeof(struct le_softc), leprobe, leattach
};
struct cfdriver le_cd = {
NULL, "le", DV_IFNET
};
integrate void
lewrcsr(sc, port, val)
struct le_softc *sc;
u_int16_t port, val;
{
outw(sc->sc_rap, port);
outw(sc->sc_rdp, val);
}
integrate u_int16_t
lerdcsr(sc, port)
struct le_softc *sc;
u_int16_t port;
{
u_int16_t val;
outw(sc->sc_rap, port);
val = inw(sc->sc_rdp);
return (val);
}
int
leprobe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct le_softc *sc = match;
extern struct cfdriver isa_cd, pci_cd;
#if NISA > 0
if (parent->dv_cfdata->cf_driver == &isa_cd) {
struct isa_attach_args *ia = aux;
if (bicc_probe(sc, ia))
return (1);
if (ne2100_probe(sc, ia))
return (1);
if (depca_probe(sc, ia))
return (1);
}
#endif
#if NPCI > 0
if (parent->dv_cfdata->cf_driver == &pci_cd) {
struct pci_attach_args *pa = aux;
if (pa->pa_id == 0x20001022)
return (1);
}
#endif
return (0);
}
#if NISA > 0
int
depca_probe(sc, ia)
struct le_softc *sc;
struct isa_attach_args *ia;
{
int iobase = ia->ia_iobase, port;
u_long sum, rom_sum;
u_char x;
int i;
sc->sc_rap = iobase + DEPCA_RAP;
sc->sc_rdp = iobase + DEPCA_RDP;
sc->sc_card = DEPCA;
if (lance_probe(sc) == 0)
return 0;
outb(iobase + DEPCA_CSR, DEPCA_CSR_DUM);
/*
* Extract the physical MAC address from the ROM.
*
* The address PROM is 32 bytes wide, and we access it through
* a single I/O port. On each read, it rotates to the next
* position. We find the ethernet address by looking for a
* particular sequence of bytes (0xff, 0x00, 0x55, 0xaa, 0xff,
* 0x00, 0x55, 0xaa), and then reading the next 8 bytes (the
* ethernet address and a checksum).
*
* It appears that the PROM can be at one of two locations, so
* we just try both.
*/
port = iobase + DEPCA_ADP;
for (i = 0; i < 32; i++)
if (inb(port) == 0xff && inb(port) == 0x00 &&
inb(port) == 0x55 && inb(port) == 0xaa &&
inb(port) == 0xff && inb(port) == 0x00 &&
inb(port) == 0x55 && inb(port) == 0xaa)
goto found;
port = iobase + DEPCA_ADP + 1;
for (i = 0; i < 32; i++)
if (inb(port) == 0xff && inb(port) == 0x00 &&
inb(port) == 0x55 && inb(port) == 0xaa &&
inb(port) == 0xff && inb(port) == 0x00 &&
inb(port) == 0x55 && inb(port) == 0xaa)
goto found;
printf("%s: address not found\n", sc->sc_dev.dv_xname);
return 0;
found:
for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
sc->sc_arpcom.ac_enaddr[i] = inb(port);
#if 0
sum =
(sc->sc_arpcom.ac_enaddr[0] << 2) +
(sc->sc_arpcom.ac_enaddr[1] << 10) +
(sc->sc_arpcom.ac_enaddr[2] << 1) +
(sc->sc_arpcom.ac_enaddr[3] << 9) +
(sc->sc_arpcom.ac_enaddr[4] << 0) +
(sc->sc_arpcom.ac_enaddr[5] << 8);
sum = (sum & 0xffff) + (sum >> 16);
sum = (sum & 0xffff) + (sum >> 16);
rom_sum = inb(port);
rom_sum |= inb(port) << 8;
if (sum != rom_sum) {
printf("%s: checksum mismatch; calculated %04x != read %04x",
sc->sc_dev.dv_xname, sum, rom_sum);
return 0;
}
#endif
outb(iobase + DEPCA_CSR, DEPCA_CSR_NORMAL);
ia->ia_iosize = 16;
ia->ia_drq = DRQUNK;
return 1;
}
int
ne2100_probe(sc, ia)
struct le_softc *sc;
struct isa_attach_args *ia;
{
int iobase = ia->ia_iobase;
int i;
sc->sc_rap = iobase + NE2100_RAP;
sc->sc_rdp = iobase + NE2100_RDP;
sc->sc_card = NE2100;
if (lance_probe(sc) == 0)
return 0;
/*
* Extract the physical MAC address from the ROM.
*/
for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i);
ia->ia_iosize = 24;
return 1;
}
int
bicc_probe(sc, ia)
struct le_softc *sc;
struct isa_attach_args *ia;
{
int iobase = ia->ia_iobase;
int i;
sc->sc_rap = iobase + BICC_RAP;
sc->sc_rdp = iobase + BICC_RDP;
sc->sc_card = BICC;
if (lance_probe(sc) == 0)
return 0;
/*
* Extract the physical MAC address from the ROM.
*/
for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i * 2);
ia->ia_iosize = 16;
return 1;
}
/*
* Determine which chip is present on the card.
*/
int
lance_probe(sc)
struct le_softc *sc;
{
/* Stop the LANCE chip and put it in a known state. */
lewrcsr(sc, LE_CSR0, LE_C0_STOP);
LE_DELAY(100);
if (lerdcsr(sc, LE_CSR0) != LE_C0_STOP)
return 0;
lewrcsr(sc, LE_CSR3, sc->sc_conf3);
return 1;
}
#endif
void
leattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct le_softc *sc = (void *)self;
extern struct cfdriver isa_cd, pci_cd;
#if NPCI > 0
if (parent->dv_cfdata->cf_driver == &pci_cd) {
struct pci_attach_args *pa = aux;
int iobase;
if (pa->pa_id == 0x20001022) {
int i;
if (pci_map_io(pa->pa_tag, 0x10, &iobase))
return;
sc->sc_rap = iobase + NE2100_RAP;
sc->sc_rdp = iobase + NE2100_RDP;
sc->sc_card = PCnet_PCI;
/*
* Extract the physical MAC address from the ROM.
*/
for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++)
sc->sc_arpcom.ac_enaddr[i] = inb(iobase + i);
}
}
#endif
#if NISA > 0
if (sc->sc_card == DEPCA) {
struct isa_attach_args *ia = aux;
u_char *mem, val;
int i;
mem = sc->sc_mem = ISA_HOLE_VADDR(ia->ia_maddr);
val = 0xff;
for (;;) {
for (i = 0; i < ia->ia_msize; i++)
mem[i] = val;
for (i = 0; i < ia->ia_msize; i++)
if (mem[i] != val) {
printf("%s: failed to clear memory\n",
sc->sc_dev.dv_xname);
return;
}
if (val == 0x00)
break;
val -= 0x55;
}
sc->sc_conf3 = LE_C3_ACON;
sc->sc_addr = 0;
sc->sc_memsize = ia->ia_msize;
} else
#endif
{
sc->sc_mem = malloc(16384, M_DEVBUF, M_NOWAIT);
if (sc->sc_mem == 0) {
printf("%s: couldn't allocate memory for card\n",
sc->sc_dev.dv_xname);
return;
}
sc->sc_conf3 = 0;
sc->sc_addr = kvtop(sc->sc_mem);
sc->sc_memsize = 16384;
}
sc->sc_copytodesc = copytobuf_contig;
sc->sc_copyfromdesc = copyfrombuf_contig;
sc->sc_copytobuf = copytobuf_contig;
sc->sc_copyfrombuf = copyfrombuf_contig;
sc->sc_zerobuf = zerobuf_contig;
sc->sc_arpcom.ac_if.if_name = le_cd.cd_name;
leconfig(sc);
printf("%s: type %s\n", sc->sc_dev.dv_xname, card_type[sc->sc_card]);
#if NISA > 0
if (parent->dv_cfdata->cf_driver == &isa_cd) {
struct isa_attach_args *ia = aux;
if (ia->ia_drq != DRQUNK)
isa_dmacascade(ia->ia_drq);
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_NET, leintredge, sc);
}
#endif
#if NPCI > 0
if (parent->dv_cfdata->cf_driver == &pci_cd) {
struct pci_attach_args *pa = aux;
pcireg_t csr;
csr = pci_conf_read(pa->pa_bc, pa->pa_tag,
PCI_COMMAND_STATUS_REG);
pci_conf_write(pa->pa_bc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
sc->sc_ih = pci_map_int(pa->pa_tag, IPL_NET, leintr, sc);
}
#endif
sc->sc_sh = shutdownhook_establish(leshutdown, sc);
}
void
leshutdown(arg)
void *arg;
{
struct le_softc *sc = arg;
lestop(sc);
}
#if NISA > 0
/*
* Controller interrupt.
*/
leintredge(arg)
void *arg;
{
if (leintr(arg) == 0)
return (0);
for (;;)
if (leintr(arg) == 0)
return (1);
}
#endif
#include <dev/ic/am7990.c>