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NetBSD/sys/dev/isa/if_we_isa.c

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/* $NetBSD: if_we_isa.c,v 1.23 2014/10/18 08:33:28 snj Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Device driver for National Semiconductor DS8390/WD83C690 based ethernet
* adapters.
*
* Copyright (c) 1994, 1995 Charles M. Hannum. All rights reserved.
*
* Copyright (C) 1993, David Greenman. This software may be used, modified,
* copied, distributed, and sold, in both source and binary form provided that
* the above copyright and these terms are retained. Under no circumstances is
* the author responsible for the proper functioning of this software, nor does
* the author assume any responsibility for damages incurred with its use.
*/
/*
* Device driver for the Western Digital/SMC 8003 and 8013 series,
* and the SMC Elite Ultra (8216).
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_we_isa.c,v 1.23 2014/10/18 08:33:28 snj Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <sys/bus.h>
#include <sys/bswap.h>
#include <sys/intr.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>
#include <dev/ic/wereg.h>
#include <dev/ic/wevar.h>
#include "ioconf.h"
#ifndef __BUS_SPACE_HAS_STREAM_METHODS
#define bus_space_read_region_stream_2 bus_space_read_region_2
#define bus_space_write_stream_2 bus_space_write_2
#define bus_space_write_region_stream_2 bus_space_write_region_2
#endif
int we_isa_probe(device_t, cfdata_t , void *);
void we_isa_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(we_isa, sizeof(struct we_softc),
we_isa_probe, we_isa_attach, NULL, NULL);
static const char *we_params(bus_space_tag_t, bus_space_handle_t,
uint8_t *, bus_size_t *, uint8_t *, int *);
static const int we_584_irq[] = {
9, 3, 5, 7, 10, 11, 15, 4,
};
static const int we_790_irq[] = {
ISA_UNKNOWN_IRQ, 9, 3, 5, 7, 10, 11, 15,
};
int
we_isa_probe(device_t parent, cfdata_t cf, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_tag_t asict, memt;
bus_space_handle_t asich, memh;
bus_size_t memsize;
int asich_valid, memh_valid;
int i, is790, rv = 0;
uint8_t x, type;
asict = ia->ia_iot;
memt = ia->ia_memt;
asich_valid = memh_valid = 0;
if (ia->ia_nio < 1)
return 0;
if (ia->ia_niomem < 1)
return 0;
if (ia->ia_nirq < 1)
return 0;
if (ISA_DIRECT_CONFIG(ia))
return 0;
/* Disallow wildcarded i/o addresses. */
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
return 0;
/* Disallow wildcarded mem address. */
if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM)
return 0;
/* Attempt to map the device. */
if (bus_space_map(asict, ia->ia_io[0].ir_addr, WE_NPORTS, 0, &asich))
goto out;
asich_valid = 1;
#ifdef TOSH_ETHER
bus_space_write_1(asict, asich, WE_MSR, WE_MSR_POW);
#endif
/*
* Attempt to do a checksum over the station address PROM.
* If it fails, it's probably not a WD/SMC board. There is
* a problem with this, though. Some clone WD8003E boards
* (e.g. Danpex) won't pass the checksum. In this case,
* the checksum byte always seems to be 0.
*/
for (x = 0, i = 0; i < 8; i++)
x += bus_space_read_1(asict, asich, WE_PROM + i);
if (x != WE_ROM_CHECKSUM_TOTAL) {
/* Make sure it's an 8003E clone... */
if (bus_space_read_1(asict, asich, WE_CARD_ID) !=
WE_TYPE_WD8003E)
goto out;
/* Check the checksum byte. */
if (bus_space_read_1(asict, asich, WE_PROM + 7) != 0)
goto out;
}
/*
* Reset the card to force it into a known state.
*/
#ifdef TOSH_ETHER
bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST | WE_MSR_POW);
#else
bus_space_write_1(asict, asich, WE_MSR, WE_MSR_RST);
#endif
delay(100);
bus_space_write_1(asict, asich, WE_MSR,
bus_space_read_1(asict, asich, WE_MSR) & ~WE_MSR_RST);
/* Wait in case the card is reading its EEPROM. */
delay(5000);
/*
* Get parameters.
*/
if (we_params(asict, asich, &type, &memsize, NULL, &is790) == NULL)
goto out;
/* Allow user to override probed value. */
if (ia->ia_iomem[0].ir_size)
memsize = ia->ia_iomem[0].ir_size;
/* Attempt to map the memory space. */
if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, memsize, 0, &memh))
goto out;
memh_valid = 1;
/*
* If possible, get the assigned interrupt number from the card
* and use it.
*/
if (is790) {
uint8_t hwr;
/* Assemble together the encoded interrupt number. */
hwr = bus_space_read_1(asict, asich, WE790_HWR);
bus_space_write_1(asict, asich, WE790_HWR,
hwr | WE790_HWR_SWH);
x = bus_space_read_1(asict, asich, WE790_GCR);
i = ((x & WE790_GCR_IR2) >> 4) |
((x & (WE790_GCR_IR1|WE790_GCR_IR0)) >> 2);
bus_space_write_1(asict, asich, WE790_HWR,
hwr & ~WE790_HWR_SWH);
if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ &&
ia->ia_irq[0].ir_irq != we_790_irq[i])
aprint_error("%s%d: overriding configured "
"IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit,
ia->ia_irq[0].ir_irq, we_790_irq[i]);
ia->ia_irq[0].ir_irq = we_790_irq[i];
} else if (type & WE_SOFTCONFIG) {
/* Assemble together the encoded interrupt number. */
i = (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_IR2) |
((bus_space_read_1(asict, asich, WE_IRR) &
(WE_IRR_IR0 | WE_IRR_IR1)) >> 5);
if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ &&
ia->ia_irq[0].ir_irq != we_584_irq[i])
aprint_error("%s%d: overriding configured "
"IRQ %d to %d\n", we_cd.cd_name, cf->cf_unit,
ia->ia_irq[0].ir_irq, we_584_irq[i]);
ia->ia_irq[0].ir_irq = we_584_irq[i];
}
/* So, we say we've found it! */
ia->ia_nio = 1;
ia->ia_io[0].ir_size = WE_NPORTS;
ia->ia_niomem = 1;
ia->ia_iomem[0].ir_size = memsize;
ia->ia_nirq = 1;
ia->ia_ndrq = 0;
rv = 1;
out:
if (asich_valid)
bus_space_unmap(asict, asich, WE_NPORTS);
if (memh_valid)
bus_space_unmap(memt, memh, memsize);
return rv;
}
void
we_isa_attach(device_t parent, device_t self, void *aux)
{
struct we_softc *wsc = device_private(self);
struct dp8390_softc *sc = &wsc->sc_dp8390;
struct isa_attach_args *ia = aux;
bus_space_tag_t nict, asict, memt;
bus_space_handle_t nich, asich, memh;
const char *typestr;
aprint_normal("\n");
sc->sc_dev = self;
nict = asict = ia->ia_iot;
memt = ia->ia_memt;
/* Map the device. */
if (bus_space_map(asict, ia->ia_io[0].ir_addr, WE_NPORTS, 0, &asich)) {
aprint_error_dev(self, "can't map nic i/o space\n");
return;
}
if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS,
&nich)) {
aprint_error_dev(self, "can't subregion i/o space\n");
return;
}
typestr = we_params(asict, asich, &wsc->sc_type, NULL,
&wsc->sc_flags, &sc->is790);
if (typestr == NULL) {
aprint_error_dev(self, "where did the card go?\n");
return;
}
/*
* Map memory space. Note we use the size that might have
* been overridden by the user.
*/
if (bus_space_map(memt, ia->ia_iomem[0].ir_addr,
ia->ia_iomem[0].ir_size, 0, &memh)) {
aprint_error_dev(self, "can't map shared memory\n");
return;
}
wsc->sc_asict = asict;
wsc->sc_asich = asich;
sc->sc_regt = nict;
sc->sc_regh = nich;
sc->sc_buft = memt;
sc->sc_bufh = memh;
wsc->sc_maddr = ia->ia_iomem[0].ir_addr;
sc->mem_size = ia->ia_iomem[0].ir_size;
/* Interface is always enabled. */
sc->sc_enabled = 1;
if (we_config(self, wsc, typestr))
return;
/*
* Enable the configured interrupt.
*/
if (sc->is790)
bus_space_write_1(asict, asich, WE790_ICR,
bus_space_read_1(asict, asich, WE790_ICR) |
WE790_ICR_EIL);
else if (wsc->sc_type & WE_SOFTCONFIG)
bus_space_write_1(asict, asich, WE_IRR,
bus_space_read_1(asict, asich, WE_IRR) | WE_IRR_IEN);
else if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) {
aprint_error_dev(self, "can't wildcard IRQ on a %s\n",
typestr);
return;
}
/* Establish interrupt handler. */
wsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
IST_EDGE, IPL_NET, dp8390_intr, sc);
if (wsc->sc_ih == NULL)
aprint_error_dev(self, "can't establish interrupt\n");
}
static const char *
we_params(bus_space_tag_t asict, bus_space_handle_t asich, uint8_t *typep,
bus_size_t *memsizep, uint8_t *flagp, int *is790p)
{
const char *typestr;
bus_size_t memsize;
int is16bit, is790;
uint8_t type;
memsize = 8192;
is16bit = is790 = 0;
type = bus_space_read_1(asict, asich, WE_CARD_ID);
switch (type) {
case WE_TYPE_WD8003S:
typestr = "WD8003S";
break;
case WE_TYPE_WD8003E:
typestr = "WD8003E";
break;
case WE_TYPE_WD8003EB:
typestr = "WD8003EB";
break;
case WE_TYPE_WD8003W:
typestr = "WD8003W";
break;
case WE_TYPE_WD8013EBT:
typestr = "WD8013EBT";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013W:
typestr = "WD8013W";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EP: /* also WD8003EP */
if (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) {
is16bit = 1;
memsize = 16384;
typestr = "WD8013EP";
} else
typestr = "WD8003EP";
break;
case WE_TYPE_WD8013WC:
typestr = "WD8013WC";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EBP:
typestr = "WD8013EBP";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EPC:
typestr = "WD8013EPC";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_SMC8216C:
case WE_TYPE_SMC8216T:
{
uint8_t hwr;
typestr = (type == WE_TYPE_SMC8216C) ?
"SMC8216/SMC8216C" : "SMC8216T";
hwr = bus_space_read_1(asict, asich, WE790_HWR);
bus_space_write_1(asict, asich, WE790_HWR,
hwr | WE790_HWR_SWH);
switch (bus_space_read_1(asict, asich, WE790_RAR) &
WE790_RAR_SZ64) {
case WE790_RAR_SZ64:
memsize = 65536;
break;
case WE790_RAR_SZ32:
memsize = 32768;
break;
case WE790_RAR_SZ16:
memsize = 16384;
break;
case WE790_RAR_SZ8:
/* 8216 has 16K shared mem -- 8416 has 8K */
typestr = (type == WE_TYPE_SMC8216C) ?
"SMC8416C/SMC8416BT" : "SMC8416T";
memsize = 8192;
break;
}
bus_space_write_1(asict, asich, WE790_HWR, hwr);
is16bit = 1;
is790 = 1;
break;
}
#ifdef TOSH_ETHER
case WE_TYPE_TOSHIBA1:
typestr = "Toshiba1";
memsize = 32768;
is16bit = 1;
break;
case WE_TYPE_TOSHIBA4:
typestr = "Toshiba4";
memsize = 32768;
is16bit = 1;
break;
#endif
default:
/* Not one we recognize. */
return NULL;
}
/*
* Make some adjustments to initial values depending on what is
* found in the ICR.
*/
if (is16bit && (type != WE_TYPE_WD8013EBT) &&
#ifdef TOSH_ETHER
(type != WE_TYPE_TOSHIBA1 && type != WE_TYPE_TOSHIBA4) &&
#endif
(bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) == 0) {
is16bit = 0;
memsize = 8192;
}
#ifdef WE_DEBUG
{
int i;
printf("we_params: type = 0x%x, typestr = %s, is16bit = %d, "
"memsize = %ld\n", type, typestr, is16bit, (u_long)memsize);
for (i = 0; i < 8; i++)
printf(" %d -> 0x%x\n", i,
bus_space_read_1(asict, asich, i));
}
#endif
if (typep != NULL)
*typep = type;
if (memsizep != NULL)
*memsizep = memsize;
if (flagp != NULL && is16bit)
*flagp |= WE_16BIT_ENABLE;
if (is790p != NULL)
*is790p = is790;
return typestr;
}
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