int
snc_attach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
u_int8_t myea[ETHER_ADDR_LEN];
int error;
if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 ||
snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
snc_release_resources(dev);
return(ENOENT);
}
snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
sc->sc_dev = dev;
sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
sc->sncr_dcr2 = 0; /* XXX */
sc->bitmode = 0; /* 16 bit card */
sc->sc_nic_put = snc_nec16_nic_put;
sc->sc_nic_get = snc_nec16_nic_get;
sc->sc_writetodesc = snc_nec16_writetodesc;
sc->sc_readfromdesc = snc_nec16_readfromdesc;
sc->sc_copytobuf = snc_nec16_copytobuf;
sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
sc->sc_zerobuf = snc_nec16_zerobuf;
/* sncsetup returns 1 if something fails */
if (sncsetup(sc, myea)) {
snc_release_resources(dev);
return(ENOENT);
}
mtx_init(&sc->sc_lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
MTX_DEF);
callout_init_mtx(&sc->sc_timer, &sc->sc_lock, 0);
error = sncconfig(sc, NULL, 0, 0, myea);
if (error) {
snc_release_resources(dev);
mtx_destroy(&sc->sc_lock);
return (error);
}
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
NULL, sncintr, sc, &sc->irq_handle);
if (error) {
printf("snc_isa_attach: bus_setup_intr() failed\n");
ether_ifdetach(sc->sc_ifp);
snc_release_resources(dev);
mtx_destroy(&sc->sc_lock);
return (error);
}
return 0;
}
static int
snc_pccard_attach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
int error;
/*
* Not sure that this belongs here or in snc_pccard_attach
*/
if ((error = snc_alloc_port(dev, 0)) != 0)
goto err;
if ((error = snc_alloc_memory(dev, 0)) != 0)
goto err;
if ((error = snc_alloc_irq(dev, 0, 0)) != 0)
goto err;
if ((error = snc_probe(dev, SNEC_TYPE_PNP)) != 0)
goto err;
/* This interface is always enabled. */
sc->sc_enabled = 1;
/* pccard_get_ether(dev, ether_addr); */
if ((error = snc_attach(dev)) != 0)
goto err;
return 0;
err:;
snc_release_resources(dev);
return error;
}
static int
snc_pccard_attach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
int error;
bzero(sc, sizeof(struct snc_softc));
snc_alloc_port(dev, 0);
snc_alloc_memory(dev, 0);
snc_alloc_irq(dev, 0, 0);
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
sncintr, sc, &sc->irq_handle);
if (error) {
printf("snc_isa_attach: bus_setup_intr() failed\n");
snc_release_resources(dev);
return (error);
}
/* This interface is always enabled. */
sc->sc_enabled = 1;
/* pccard_get_ether(dev, ether_addr); */
return snc_attach(dev);
}
/*
* Probe framework for pccards. Replicates the standard framework,
* minus the pccard driver registration and ignores the ether address
* supplied (from the CIS), relying on the probe to find it instead.
*/
static int
snc_pccard_probe(device_t dev)
{
int error;
error = snc_alloc_port(dev, 0);
error = max(error, snc_alloc_memory(dev, 0));
error = max(error, snc_alloc_irq(dev, 0, 0));
if (!error && !snc_probe(dev, SNEC_TYPE_PNP))
error = ENOENT;
snc_release_resources(dev);
return (error);
}
/*
* snc_pccard_detach - unload the driver and clear the table.
* XXX TODO:
* This is usually called when the card is ejected, but
* can be caused by a modunload of a controller driver.
* The idea is to reset the driver's view of the device
* and ensure that any driver entry points such as
* read and write do not hang.
*/
static int
snc_pccard_detach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->sc_if;
if (sc->gone) {
device_printf(dev, "already unloaded\n");
return (0);
}
sncshutdown(sc);
ifp->if_flags &= ~IFF_RUNNING;
if_detach(ifp);
sc->gone = 1;
bus_teardown_intr(dev, sc->irq, sc->irq_handle);
snc_release_resources(dev);
return (0);
}
/*
* snc_pccard_detach - detach this instance from the device.
*/
static int
snc_pccard_detach(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->sc_ifp;
if (sc->gone) {
device_printf(dev, "already unloaded\n");
return (0);
}
SNC_LOCK(sc);
sncshutdown(sc);
SNC_UNLOCK(sc);
callout_drain(&sc->sc_timer);
ether_ifdetach(ifp);
sc->gone = 1;
bus_teardown_intr(dev, sc->irq, sc->irq_handle);
snc_release_resources(dev);
mtx_destroy(&sc->sc_lock);
return (0);
}
static int
snc_isa_probe(device_t dev)
{
struct snc_softc *sc = device_get_softc(dev);
int type;
int error = 0;
bzero(sc, sizeof(struct snc_softc));
/* Check isapnp ids */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, snc_ids);
/* If the card had a PnP ID that didn't match any we know about */
if (error == ENXIO) {
return(error);
}
switch (error) {
case 0: /* Matched PnP */
type = SNEC_TYPE_PNP;
break;
case ENOENT: /* Legacy ISA */
type = SNEC_TYPE_LEGACY;
break;
default: /* If we had some other problem. */
return(error);
}
if (type == SNEC_TYPE_PNP && isa_get_portsize(dev) == 0) {
int port;
int rid = 0;
struct resource *res = NULL;
for (port = 0x0888; port <= 0x3888; port += 0x1000) {
bus_set_resource(dev, SYS_RES_IOPORT, rid,
port, SNEC_NREGS);
res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, SNEC_NREGS,
0 /* !RF_ACTIVE */);
if (res) break;
}
printf("snc_isa_probe: broken PnP resource, ");
if (res) {
printf("use port 0x%x\n", port);
bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
snc_isapnp_reconfig(dev);
} else {
printf("and can't find port\n");
}
}
error = snc_alloc_port(dev, 0);
error = max(error, snc_alloc_memory(dev, 0));
error = max(error, snc_alloc_irq(dev, 0, 0));
if (!error && !snc_probe(dev, type))
error = ENOENT;
snc_release_resources(dev);
return (error);
}
