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NetBSD/sys/dev/isa/if_we.c

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/* $NetBSD: if_we.c,v 1.15 1999/03/28 12:51:49 tron 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 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 "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include "rnd.h"
#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>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_inarp.h>
#endif
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#include <net/bpfdesc.h>
#endif
#include <machine/bus.h>
#include <machine/bswap.h>
#include <machine/intr.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>
#include <dev/isa/if_wereg.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
struct we_softc {
struct dp8390_softc sc_dp8390;
bus_space_tag_t sc_asict; /* space tag for ASIC */
bus_space_handle_t sc_asich; /* space handle for ASIC */
u_int8_t sc_laar_proto;
u_int8_t sc_msr_proto;
u_int8_t sc_type; /* our type */
int sc_16bitp; /* are we 16 bit? */
void *sc_ih; /* interrupt handle */
};
int we_probe __P((struct device *, struct cfdata *, void *));
void we_attach __P((struct device *, struct device *, void *));
struct cfattach we_ca = {
sizeof(struct we_softc), we_probe, we_attach
};
extern struct cfdriver we_cd;
const char *we_params __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *,
bus_size_t *, int *, int *));
void we_set_media __P((struct we_softc *, int));
int we_mediachange __P((struct dp8390_softc *));
void we_mediastatus __P((struct dp8390_softc *, struct ifmediareq *));
void we_recv_int __P((struct dp8390_softc *));
void we_init_card __P((struct dp8390_softc *));
int we_write_mbuf __P((struct dp8390_softc *, struct mbuf *, int));
int we_ring_copy __P((struct dp8390_softc *, int, caddr_t, u_short));
void we_read_hdr __P((struct dp8390_softc *, int, struct dp8390_ring *));
int we_test_mem __P((struct dp8390_softc *));
__inline void we_readmem __P((struct we_softc *, int, u_int8_t *, int));
static const int we_584_irq[] = {
9, 3, 5, 7, 10, 11, 15, 4,
};
#define NWE_584_IRQ (sizeof(we_584_irq) / sizeof(we_584_irq[0]))
static const int we_790_irq[] = {
IRQUNK, 9, 3, 5, 7, 10, 11, 15,
};
#define NWE_790_IRQ (sizeof(we_790_irq) / sizeof(we_790_irq[0]))
int we_media[] = {
IFM_ETHER|IFM_10_2,
IFM_ETHER|IFM_10_5,
};
#define NWE_MEDIA (sizeof(we_media) / sizeof(we_media[0]))
/*
* Delay needed when switching 16-bit access to shared memory.
*/
#define WE_DELAY(wsc) delay(3)
/*
* Enable card RAM, and 16-bit access.
*/
#define WE_MEM_ENABLE(wsc) \
do { \
if ((wsc)->sc_16bitp) \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_LAAR, (wsc)->sc_laar_proto | WE_LAAR_M16EN); \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_MSR, wsc->sc_msr_proto | WE_MSR_MENB); \
WE_DELAY((wsc)); \
} while (0)
/*
* Disable card RAM, and 16-bit access.
*/
#define WE_MEM_DISABLE(wsc) \
do { \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_MSR, (wsc)->sc_msr_proto); \
if ((wsc)->sc_16bitp) \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_LAAR, (wsc)->sc_laar_proto); \
WE_DELAY((wsc)); \
} while (0)
int
we_probe(parent, cf, aux)
struct device *parent;
struct cfdata *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;
u_int8_t x, type;
asict = ia->ia_iot;
memt = ia->ia_memt;
asich_valid = memh_valid = 0;
/* Disallow wildcarded i/o addresses. */
if (ia->ia_iobase == ISACF_PORT_DEFAULT)
return (0);
/* Disallow wildcarded mem address. */
if (ia->ia_maddr == ISACF_IOMEM_DEFAULT)
return (0);
/* Attempt to map the device. */
if (bus_space_map(asict, ia->ia_iobase, 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 it's 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_msize)
memsize = ia->ia_msize;
/* Attempt to map the memory space. */
if (bus_space_map(memt, ia->ia_maddr, memsize, 0, &memh))
goto out;
memh_valid = 1;
/*
* If possible, get the assigned interrupt number from the card
* and use it.
*/
if (is790) {
u_int8_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 != IRQUNK && ia->ia_irq != we_790_irq[i])
printf("%s%d: overriding IRQ %d to %d\n",
we_cd.cd_name, cf->cf_unit, ia->ia_irq,
we_790_irq[i]);
ia->ia_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 != IRQUNK && ia->ia_irq != we_584_irq[i])
printf("%s%d: overriding IRQ %d to %d\n",
we_cd.cd_name, cf->cf_unit, ia->ia_irq,
we_584_irq[i]);
ia->ia_irq = we_584_irq[i];
}
/* So, we say we've found it! */
ia->ia_iosize = WE_NPORTS;
ia->ia_msize = memsize;
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_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct we_softc *wsc = (struct we_softc *)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;
u_int8_t x;
int i, forced_16bit;
printf("\n");
forced_16bit = 0;
nict = asict = ia->ia_iot;
memt = ia->ia_memt;
/* Map the device. */
if (bus_space_map(asict, ia->ia_iobase, WE_NPORTS, 0, &asich)) {
printf("%s: can't map nic i/o space\n",
sc->sc_dev.dv_xname);
return;
}
if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS,
&nich)) {
printf("%s: can't subregion i/o space\n",
sc->sc_dev.dv_xname);
return;
}
typestr = we_params(asict, asich, &wsc->sc_type, NULL,
&wsc->sc_16bitp, &sc->is790);
if (typestr == NULL) {
printf("%s: where did the card go?\n", sc->sc_dev.dv_xname);
return;
}
/*
* Map memory space. Note we use the size that might have
* been overridden by the user.
*/
if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) {
printf("%s: can't map shared memory\n",
sc->sc_dev.dv_xname);
return;
}
/*
* Allow user to override 16-bit mode. 8-bit takes precedence.
*/
if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_16BIT_MODE) {
wsc->sc_16bitp = 1;
forced_16bit = 1;
}
if (self->dv_cfdata->cf_flags & WE_FLAGS_FORCE_8BIT_MODE)
wsc->sc_16bitp = 0;
wsc->sc_asict = asict;
wsc->sc_asich = asich;
sc->sc_regt = nict;
sc->sc_regh = nich;
sc->sc_buft = memt;
sc->sc_bufh = memh;
/* Interface is always enabled. */
sc->sc_enabled = 1;
/* Registers are linear. */
for (i = 0; i < 16; i++)
sc->sc_reg_map[i] = i;
/* Now we can use the NIC_{GET,PUT}() macros. */
printf("%s: %s Ethernet (%s-bit)\n", sc->sc_dev.dv_xname,
typestr, wsc->sc_16bitp ? "16" : "8");
/* Get station address from EEPROM. */
for (i = 0; i < ETHER_ADDR_LEN; i++)
sc->sc_enaddr[i] = bus_space_read_1(asict, asich, WE_PROM + i);
/*
* Set upper address bits and 8/16 bit access to shared memory.
*/
if (sc->is790) {
wsc->sc_laar_proto =
bus_space_read_1(asict, asich, WE_LAAR) &
~WE_LAAR_M16EN;
bus_space_write_1(asict, asich, WE_LAAR,
wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0));
} else if ((wsc->sc_type & WE_SOFTCONFIG) ||
#ifdef TOSH_ETHER
(wsc->sc_type == WE_TYPE_TOSHIBA1) ||
(wsc->sc_type == WE_TYPE_TOSHIBA4) ||
#endif
(forced_16bit) ||
(wsc->sc_type == WE_TYPE_WD8013EBT)) {
wsc->sc_laar_proto = (ia->ia_maddr >> 19) & WE_LAAR_ADDRHI;
if (wsc->sc_16bitp)
wsc->sc_laar_proto |= WE_LAAR_L16EN;
bus_space_write_1(asict, asich, WE_LAAR,
wsc->sc_laar_proto | (wsc->sc_16bitp ? WE_LAAR_M16EN : 0));
}
/*
* Set address and enable interface shared memory.
*/
if (sc->is790) {
/* XXX MAGIC CONSTANTS XXX */
x = bus_space_read_1(asict, asich, 0x04);
bus_space_write_1(asict, asich, 0x04, x | 0x80);
bus_space_write_1(asict, asich, 0x0b,
((ia->ia_maddr >> 13) & 0x0f) |
((ia->ia_maddr >> 11) & 0x40) |
(bus_space_read_1(asict, asich, 0x0b) & 0xb0));
bus_space_write_1(asict, asich, 0x04, x);
wsc->sc_msr_proto = 0x00;
sc->cr_proto = 0x00;
} else {
#ifdef TOSH_ETHER
if (wsc->sc_type == WE_TYPE_TOSHIBA1 ||
wsc->sc_type == WE_TYPE_TOSHIBA4) {
bus_space_write_1(asict, asich, WE_MSR + 1,
((ia->ia_maddr >> 8) & 0xe0) | 0x04);
bus_space_write_1(asict, asich, WE_MSR + 2,
((ia->ia_maddr >> 16) & 0x0f));
wsc->sc_msr_proto = WE_MSR_POW;
} else
#endif
wsc->sc_msr_proto = (ia->ia_maddr >> 13) &
WE_MSR_ADDR;
sc->cr_proto = ED_CR_RD2;
}
bus_space_write_1(asict, asich, WE_MSR,
wsc->sc_msr_proto | WE_MSR_MENB);
WE_DELAY(wsc);
/*
* DCR gets:
*
* FIFO threshold to 8, No auto-init Remote DMA,
* byte order=80x86.
*
* 16-bit cards also get word-wide DMA transfers.
*/
sc->dcr_reg = ED_DCR_FT1 | ED_DCR_LS |
(wsc->sc_16bitp ? ED_DCR_WTS : 0);
sc->test_mem = we_test_mem;
sc->ring_copy = we_ring_copy;
sc->write_mbuf = we_write_mbuf;
sc->read_hdr = we_read_hdr;
sc->recv_int = we_recv_int;
sc->init_card = we_init_card;
sc->sc_mediachange = we_mediachange;
sc->sc_mediastatus = we_mediastatus;
sc->mem_start = 0;
sc->mem_size = ia->ia_msize;
sc->sc_flags = self->dv_cfdata->cf_flags;
/* Do generic parts of attach. */
if (wsc->sc_type & WE_SOFTCONFIG) {
int defmedia = IFM_ETHER;
if (sc->is790) {
x = bus_space_read_1(asict, asich, WE790_HWR);
bus_space_write_1(asict, asich, WE790_HWR,
x | WE790_HWR_SWH);
if (bus_space_read_1(asict, asich, WE790_GCR) &
WE790_GCR_GPOUT)
defmedia |= IFM_10_2;
else
defmedia |= IFM_10_5;
bus_space_write_1(asict, asich, WE790_HWR,
x & ~WE790_HWR_SWH);
} else {
x = bus_space_read_1(asict, asich, WE_IRR);
if (x & WE_IRR_OUT2)
defmedia |= IFM_10_2;
else
defmedia |= IFM_10_5;
}
i = dp8390_config(sc, we_media, NWE_MEDIA, defmedia);
} else
i = dp8390_config(sc, NULL, 0, 0);
if (i) {
printf("%s: configuration failed\n", sc->sc_dev.dv_xname);
return;
}
/*
* Disable 16-bit access to shared memory - we leave it disabled
* so that:
*
* (1) machines reboot properly when the board is set to
* 16-bit mode and there are conflicting 8-bit devices
* within the same 128k address space as this board's
* shared memory, and
*
* (2) so that other 8-bit devices with shared memory
* in this same 128k address space will work.
*/
WE_MEM_DISABLE(wsc);
/*
* 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 == IRQUNK) {
printf("%s: can't wildcard IRQ on a %s\n",
sc->sc_dev.dv_xname, typestr);
return;
}
/* Establish interrupt handler. */
wsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_NET, dp8390_intr, sc);
if (wsc->sc_ih == NULL)
printf("%s: can't establish interrupt\n", sc->sc_dev.dv_xname);
}
int
we_test_mem(sc)
struct dp8390_softc *sc;
{
struct we_softc *wsc = (struct we_softc *)sc;
bus_space_tag_t memt = sc->sc_buft;
bus_space_handle_t memh = sc->sc_bufh;
bus_size_t memsize = sc->mem_size;
int i;
if (wsc->sc_16bitp)
bus_space_set_region_2(memt, memh, 0, 0, memsize >> 1);
else
bus_space_set_region_1(memt, memh, 0, 0, memsize);
if (wsc->sc_16bitp) {
for (i = 0; i < memsize; i += 2) {
if (bus_space_read_2(memt, memh, i) != 0)
goto fail;
}
} else {
for (i = 0; i < memsize; i++) {
if (bus_space_read_1(memt, memh, i) != 0)
goto fail;
}
}
return (0);
fail:
printf("%s: failed to clear shared memory at offset 0x%x\n",
sc->sc_dev.dv_xname, i);
WE_MEM_DISABLE(wsc);
return (1);
}
/*
* Given a NIC memory source address and a host memory destination address,
* copy 'len' from NIC to host using shared memory. The 'len' is rounded
* up to a word - ok as long as mbufs are word-sized.
*/
__inline void
we_readmem(wsc, from, to, len)
struct we_softc *wsc;
int from;
u_int8_t *to;
int len;
{
bus_space_tag_t memt = wsc->sc_dp8390.sc_buft;
bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh;
if (len & 1)
++len;
if (wsc->sc_16bitp)
bus_space_read_region_stream_2(memt, memh, from,
(u_int16_t *)to, len >> 1);
else
bus_space_read_region_1(memt, memh, from,
to, len);
}
int
we_write_mbuf(sc, m, buf)
struct dp8390_softc *sc;
struct mbuf *m;
int buf;
{
struct we_softc *wsc = (struct we_softc *)sc;
bus_space_tag_t memt = wsc->sc_dp8390.sc_buft;
bus_space_handle_t memh = wsc->sc_dp8390.sc_bufh;
u_int8_t *data, savebyte[2];
int savelen, len, leftover;
#ifdef DIAGNOSTIC
u_int8_t *lim;
#endif
savelen = m->m_pkthdr.len;
WE_MEM_ENABLE(wsc);
/*
* 8-bit boards are simple; no alignment tricks are necessary.
*/
if (wsc->sc_16bitp == 0) {
for (; m != NULL; buf += m->m_len, m = m->m_next)
bus_space_write_region_1(memt, memh,
buf, mtod(m, u_int8_t *), m->m_len);
goto out;
}
/* Start out with no leftover data. */
leftover = 0;
savebyte[0] = savebyte[1] = 0;
for (; m != NULL; m = m->m_next) {
len = m->m_len;
if (len == 0)
continue;
data = mtod(m, u_int8_t *);
#ifdef DIAGNOSTIC
lim = data + len;
#endif
while (len > 0) {
if (leftover) {
/*
* Data left over (from mbuf or realignment).
* Buffer the next byte, and write it and
* the leftover data out.
*/
savebyte[1] = *data++;
len--;
bus_space_write_stream_2(memt, memh, buf,
*(u_int16_t *)savebyte);
buf += 2;
leftover = 0;
} else if (BUS_SPACE_ALIGNED_POINTER(data, u_int16_t)
== 0) {
/*
* Unaligned dta; buffer the next byte.
*/
savebyte[0] = *data++;
len--;
leftover = 1;
} else {
/*
* Aligned data; output contiguous words as
* much as we can, then buffer the remaining
* byte, if any.
*/
leftover = len & 1;
len &= ~1;
bus_space_write_region_stream_2(memt, memh,
buf, (u_int16_t *)data, len >> 1);
data += len;
buf += len;
if (leftover)
savebyte[0] = *data++;
len = 0;
}
}
if (len < 0)
panic("we_write_mbuf: negative len");
#ifdef DIAGNOSTIC
if (data != lim)
panic("we_write_mbuf: data != lim");
#endif
}
if (leftover) {
savebyte[1] = 0;
bus_space_write_stream_2(memt, memh, buf,
*(u_int16_t *)savebyte);
}
out:
WE_MEM_DISABLE(wsc);
return (savelen);
}
int
we_ring_copy(sc, src, dst, amount)
struct dp8390_softc *sc;
int src;
caddr_t dst;
u_short amount;
{
struct we_softc *wsc = (struct we_softc *)sc;
u_short tmp_amount;
/* Does copy wrap to lower addr in ring buffer? */
if (src + amount > sc->mem_end) {
tmp_amount = sc->mem_end - src;
/* Copy amount up to end of NIC memory. */
we_readmem(wsc, src, dst, tmp_amount);
amount -= tmp_amount;
src = sc->mem_ring;
dst += tmp_amount;
}
we_readmem(wsc, src, dst, amount);
return (src + amount);
}
void
we_read_hdr(sc, packet_ptr, packet_hdrp)
struct dp8390_softc *sc;
int packet_ptr;
struct dp8390_ring *packet_hdrp;
{
struct we_softc *wsc = (struct we_softc *)sc;
we_readmem(wsc, packet_ptr, (u_int8_t *)packet_hdrp,
sizeof(struct dp8390_ring));
#if BYTE_ORDER == BIG_ENDIAN
packet_hdrp->count = bswap16(packet_hdrp->count);
#endif
}
void
we_recv_int(sc)
struct dp8390_softc *sc;
{
struct we_softc *wsc = (struct we_softc *)sc;
WE_MEM_ENABLE(wsc);
dp8390_rint(sc);
WE_MEM_DISABLE(wsc);
}
int
we_mediachange(sc)
struct dp8390_softc *sc;
{
/*
* Current media is already set up. Just reset the interface
* to let the new value take hold. The new media will be
* set up in we_init_card() called via dp8390_init().
*/
dp8390_reset(sc);
return (0);
}
void
we_mediastatus(sc, ifmr)
struct dp8390_softc *sc;
struct ifmediareq *ifmr;
{
struct ifmedia *ifm = &sc->sc_media;
/*
* The currently selected media is always the active media.
*/
ifmr->ifm_active = ifm->ifm_cur->ifm_media;
}
void
we_init_card(sc)
struct dp8390_softc *sc;
{
struct we_softc *wsc = (struct we_softc *)sc;
struct ifmedia *ifm = &sc->sc_media;
we_set_media(wsc, ifm->ifm_cur->ifm_media);
}
void
we_set_media(wsc, media)
struct we_softc *wsc;
int media;
{
struct dp8390_softc *sc = &wsc->sc_dp8390;
bus_space_tag_t asict = wsc->sc_asict;
bus_space_handle_t asich = wsc->sc_asich;
u_int8_t hwr, gcr, irr;
if (sc->is790) {
hwr = bus_space_read_1(asict, asich, WE790_HWR);
bus_space_write_1(asict, asich, WE790_HWR,
hwr | WE790_HWR_SWH);
gcr = bus_space_read_1(asict, asich, WE790_GCR);
if (IFM_SUBTYPE(media) == IFM_10_2)
gcr |= WE790_GCR_GPOUT;
else
gcr &= ~WE790_GCR_GPOUT;
bus_space_write_1(asict, asich, WE790_GCR,
gcr | WE790_GCR_LIT);
bus_space_write_1(asict, asich, WE790_HWR,
hwr & ~WE790_HWR_SWH);
return;
}
irr = bus_space_read_1(wsc->sc_asict, wsc->sc_asich, WE_IRR);
if (IFM_SUBTYPE(media) == IFM_10_2)
irr |= WE_IRR_OUT2;
else
irr &= ~WE_IRR_OUT2;
bus_space_write_1(wsc->sc_asict, wsc->sc_asich, WE_IRR, irr);
}
const char *
we_params(asict, asich, typep, memsizep, is16bitp, is790p)
bus_space_tag_t asict;
bus_space_handle_t asich;
u_int8_t *typep;
bus_size_t *memsizep;
int *is16bitp, *is790p;
{
const char *typestr;
bus_size_t memsize;
int is16bit, is790;
u_int8_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:
{
u_int8_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 = %d\n", type, typestr, is16bit, 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 (is16bitp != NULL)
*is16bitp = is16bit;
if (is790p != NULL)
*is790p = is790;
return (typestr);
}
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