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| Current File : //usr/src/sys/dev/le/if_le_isa.c |
/* $NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and 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.
*/
/*-
* 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. 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 <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/le/if_le_isa.c 183337 2008-09-24 21:26:46Z marius $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/resource.h>
#include <sys/rman.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_media.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <dev/le/lancereg.h>
#include <dev/le/lancevar.h>
#include <dev/le/am7990var.h>
#define LE_ISA_MEMSIZE (16*1024)
#define PCNET_RDP 0x10
#define PCNET_RAP 0x12
struct le_isa_softc {
struct am7990_softc sc_am7990; /* glue to MI code */
bus_size_t sc_rap; /* offsets to LANCE... */
bus_size_t sc_rdp; /* ...registers */
struct resource *sc_rres;
struct resource *sc_dres;
struct resource *sc_ires;
void *sc_ih;
bus_dma_tag_t sc_pdmat;
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_dmam;
};
static device_probe_t le_isa_probe;
static device_attach_t le_isa_attach;
static device_detach_t le_isa_detach;
static device_resume_t le_isa_resume;
static device_suspend_t le_isa_suspend;
static device_method_t le_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, le_isa_probe),
DEVMETHOD(device_attach, le_isa_attach),
DEVMETHOD(device_detach, le_isa_detach),
/* We can just use the suspend method here. */
DEVMETHOD(device_shutdown, le_isa_suspend),
DEVMETHOD(device_suspend, le_isa_suspend),
DEVMETHOD(device_resume, le_isa_resume),
{ 0, 0 }
};
DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc));
DRIVER_MODULE(le, isa, le_isa_driver, le_devclass, 0, 0);
MODULE_DEPEND(le, ether, 1, 1, 1);
struct le_isa_param {
const char *name;
u_long iosize;
bus_size_t rap;
bus_size_t rdp;
bus_size_t macstart;
int macstride;
} static const le_isa_params[] = {
{ "BICC Isolan", 24, 0xe, 0xc, 0, 2 },
{ "Novell NE2100", 16, 0x12, 0x10, 0, 1 }
};
static struct isa_pnp_id le_isa_ids[] = {
{ 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */
{ 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */
{ 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */
{ 0xd880d041, "Novell NE2100" }, /* PNP80D8 */
{ 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */
{ 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */
{ 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */
{ 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */
{ 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */
{ 0, NULL }
};
static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t);
static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t);
static bus_dmamap_callback_t le_isa_dma_callback;
static int le_isa_probe_legacy(device_t, const struct le_isa_param *);
static void
le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
{
struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
bus_write_2(lesc->sc_rres, lesc->sc_rdp, val);
}
static uint16_t
le_isa_rdcsr(struct lance_softc *sc, uint16_t port)
{
struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
return (bus_read_2(lesc->sc_rres, lesc->sc_rdp));
}
static void
le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
{
struct lance_softc *sc = (struct lance_softc *)xsc;
if (error != 0)
return;
KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
sc->sc_addr = segs[0].ds_addr;
}
static int
le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip)
{
struct le_isa_softc *lesc;
struct lance_softc *sc;
int error, i;
lesc = device_get_softc(dev);
sc = &lesc->sc_am7990.lsc;
i = 0;
lesc->sc_rres = bus_alloc_resource(dev, SYS_RES_IOPORT, &i, 0, ~0,
leip->iosize, RF_ACTIVE);
if (lesc->sc_rres == NULL)
return (ENXIO);
lesc->sc_rap = leip->rap;
lesc->sc_rdp = leip->rdp;
/* Stop the chip and put it in a known state. */
le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP);
DELAY(100);
if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) {
error = ENXIO;
goto fail;
}
le_isa_wrcsr(sc, LE_CSR3, 0);
error = 0;
fail:
bus_release_resource(dev, SYS_RES_IOPORT,
rman_get_rid(lesc->sc_rres), lesc->sc_rres);
return (error);
}
static int
le_isa_probe(device_t dev)
{
int i;
switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
case 0:
return (BUS_PROBE_DEFAULT);
case ENOENT:
for (i = 0; i < sizeof(le_isa_params) /
sizeof(le_isa_params[0]); i++) {
if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
device_set_desc(dev, le_isa_params[i].name);
return (BUS_PROBE_DEFAULT);
}
}
/* FALLTHROUGH */
case ENXIO:
default:
return (ENXIO);
}
}
static int
le_isa_attach(device_t dev)
{
struct le_isa_softc *lesc;
struct lance_softc *sc;
bus_size_t macstart, rap, rdp;
int error, i, j, macstride;
lesc = device_get_softc(dev);
sc = &lesc->sc_am7990.lsc;
LE_LOCK_INIT(sc, device_get_nameunit(dev));
j = 0;
switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
case 0:
lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&j, RF_ACTIVE);
rap = PCNET_RAP;
rdp = PCNET_RDP;
macstart = 0;
macstride = 1;
break;
case ENOENT:
for (i = 0; i < sizeof(le_isa_params) /
sizeof(le_isa_params[0]); i++) {
if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
lesc->sc_rres = bus_alloc_resource(dev,
SYS_RES_IOPORT, &j, 0, ~0,
le_isa_params[i].iosize, RF_ACTIVE);
rap = le_isa_params[i].rap;
rdp = le_isa_params[i].rdp;
macstart = le_isa_params[i].macstart;
macstride = le_isa_params[i].macstride;
goto found;
}
}
/* FALLTHROUGH */
case ENXIO:
default:
device_printf(dev, "cannot determine chip\n");
error = ENXIO;
goto fail_mtx;
}
found:
if (lesc->sc_rres == NULL) {
device_printf(dev, "cannot allocate registers\n");
error = ENXIO;
goto fail_mtx;
}
lesc->sc_rap = rap;
lesc->sc_rdp = rdp;
i = 0;
if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ,
&i, RF_ACTIVE)) == NULL) {
device_printf(dev, "cannot allocate DMA channel\n");
error = ENXIO;
goto fail_rres;
}
i = 0;
if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&i, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
device_printf(dev, "cannot allocate interrupt\n");
error = ENXIO;
goto fail_dres;
}
error = bus_dma_tag_create(
bus_get_dma_tag(dev), /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
0, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&lesc->sc_pdmat);
if (error != 0) {
device_printf(dev, "cannot allocate parent DMA tag\n");
goto fail_ires;
}
sc->sc_memsize = LE_ISA_MEMSIZE;
/*
* For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte
* aligned and the ring descriptors must be 8-byte aligned.
*/
error = bus_dma_tag_create(
lesc->sc_pdmat, /* parent */
8, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
sc->sc_memsize, /* maxsize */
1, /* nsegments */
sc->sc_memsize, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&lesc->sc_dmat);
if (error != 0) {
device_printf(dev, "cannot allocate buffer DMA tag\n");
goto fail_pdtag;
}
error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
if (error != 0) {
device_printf(dev, "cannot allocate DMA buffer memory\n");
goto fail_dtag;
}
sc->sc_addr = 0;
error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
sc->sc_memsize, le_isa_dma_callback, sc, 0);
if (error != 0 || sc->sc_addr == 0) {
device_printf(dev, "cannot load DMA buffer map\n");
goto fail_dmem;
}
isa_dmacascade(rman_get_start(lesc->sc_dres));
sc->sc_flags = 0;
sc->sc_conf3 = 0;
/*
* Extract the physical MAC address from the ROM.
*/
for (i = 0; i < sizeof(sc->sc_enaddr); i++)
sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres,
macstart + i * macstride);
sc->sc_copytodesc = lance_copytobuf_contig;
sc->sc_copyfromdesc = lance_copyfrombuf_contig;
sc->sc_copytobuf = lance_copytobuf_contig;
sc->sc_copyfrombuf = lance_copyfrombuf_contig;
sc->sc_zerobuf = lance_zerobuf_contig;
sc->sc_rdcsr = le_isa_rdcsr;
sc->sc_wrcsr = le_isa_wrcsr;
sc->sc_hwreset = NULL;
sc->sc_hwinit = NULL;
sc->sc_hwintr = NULL;
sc->sc_nocarrier = NULL;
sc->sc_mediachange = NULL;
sc->sc_mediastatus = NULL;
sc->sc_supmedia = NULL;
error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
device_get_unit(dev));
if (error != 0) {
device_printf(dev, "cannot attach Am7990\n");
goto fail_dmap;
}
error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
NULL, am7990_intr, sc, &lesc->sc_ih);
if (error != 0) {
device_printf(dev, "cannot set up interrupt\n");
goto fail_am7990;
}
return (0);
fail_am7990:
am7990_detach(&lesc->sc_am7990);
fail_dmap:
bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
fail_dmem:
bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
fail_dtag:
bus_dma_tag_destroy(lesc->sc_dmat);
fail_pdtag:
bus_dma_tag_destroy(lesc->sc_pdmat);
fail_ires:
bus_release_resource(dev, SYS_RES_IRQ,
rman_get_rid(lesc->sc_ires), lesc->sc_ires);
fail_dres:
bus_release_resource(dev, SYS_RES_DRQ,
rman_get_rid(lesc->sc_dres), lesc->sc_dres);
fail_rres:
bus_release_resource(dev, SYS_RES_IOPORT,
rman_get_rid(lesc->sc_rres), lesc->sc_rres);
fail_mtx:
LE_LOCK_DESTROY(sc);
return (error);
}
static int
le_isa_detach(device_t dev)
{
struct le_isa_softc *lesc;
struct lance_softc *sc;
lesc = device_get_softc(dev);
sc = &lesc->sc_am7990.lsc;
bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
am7990_detach(&lesc->sc_am7990);
bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
bus_dma_tag_destroy(lesc->sc_dmat);
bus_dma_tag_destroy(lesc->sc_pdmat);
bus_release_resource(dev, SYS_RES_IRQ,
rman_get_rid(lesc->sc_ires), lesc->sc_ires);
bus_release_resource(dev, SYS_RES_DRQ,
rman_get_rid(lesc->sc_dres), lesc->sc_dres);
bus_release_resource(dev, SYS_RES_IOPORT,
rman_get_rid(lesc->sc_rres), lesc->sc_rres);
LE_LOCK_DESTROY(sc);
return (0);
}
static int
le_isa_suspend(device_t dev)
{
struct le_isa_softc *lesc;
lesc = device_get_softc(dev);
lance_suspend(&lesc->sc_am7990.lsc);
return (0);
}
static int
le_isa_resume(device_t dev)
{
struct le_isa_softc *lesc;
lesc = device_get_softc(dev);
lance_resume(&lesc->sc_am7990.lsc);
return (0);
}