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freebsd-skq/sys/dev/if_ndis/if_ndis.c
wpaul 04e0838d2b Add yet more bulletproofing. This is to guard against the case that 
ndis_init_nic() works one during attach, but fails later. Many things
will blow up if ndis_init_nic() fails and we aren't careful.
2004-02-11 21:53:40 +00:00

2255 lines
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/*
* Copyright (c) 2003
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* 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 Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_bdg.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/bpf.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <dev/wi/if_wavelan_ieee.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <compat/ndis/pe_var.h>
#include <compat/ndis/resource_var.h>
#include <compat/ndis/ntoskrnl_var.h>
#include <compat/ndis/ndis_var.h>
#include <compat/ndis/cfg_var.h>
#include <dev/if_ndis/if_ndisvar.h>
#include "ndis_driver_data.h"
MODULE_DEPEND(ndis, pci, 1, 1, 1);
MODULE_DEPEND(ndis, ether, 1, 1, 1);
MODULE_DEPEND(ndis, wlan, 1, 1, 1);
MODULE_DEPEND(ndis, ndisapi, 1, 1, 1);
/*
* Various supported device vendors/types and their names.
* These are defined in the ndis_driver_data.h file.
*/
static struct ndis_type ndis_devs[] = {
#ifdef NDIS_DEV_TABLE
NDIS_DEV_TABLE
#endif
{ 0, 0, 0, NULL }
};
static int ndis_probe (device_t);
static int ndis_attach (device_t);
static int ndis_detach (device_t);
static int ndis_suspend (device_t);
static int ndis_resume (device_t);
static __stdcall void ndis_txeof (ndis_handle,
ndis_packet *, ndis_status);
static __stdcall void ndis_rxeof (ndis_handle,
ndis_packet **, uint32_t);
static __stdcall void ndis_linksts (ndis_handle,
ndis_status, void *, uint32_t);
static __stdcall void ndis_linksts_done (ndis_handle);
static void ndis_intr (void *);
static void ndis_intrtask (void *);
static void ndis_tick (void *);
static void ndis_ticktask (void *);
static void ndis_start (struct ifnet *);
static void ndis_starttask (void *);
static int ndis_ioctl (struct ifnet *, u_long, caddr_t);
static int ndis_wi_ioctl_get (struct ifnet *, u_long, caddr_t);
static int ndis_wi_ioctl_set (struct ifnet *, u_long, caddr_t);
static void ndis_init (void *);
static void ndis_stop (struct ndis_softc *);
static void ndis_watchdog (struct ifnet *);
static void ndis_shutdown (device_t);
static int ndis_ifmedia_upd (struct ifnet *);
static void ndis_ifmedia_sts (struct ifnet *, struct ifmediareq *);
static int ndis_get_assoc (struct ndis_softc *, ndis_wlan_bssid_ex *);
static int ndis_probe_offload (struct ndis_softc *);
static int ndis_set_offload (struct ndis_softc *);
static void ndis_getstate_80211 (struct ndis_softc *);
static void ndis_setstate_80211 (struct ndis_softc *);
static void ndis_media_status (struct ifnet *, struct ifmediareq *);
static void ndis_setmulti (struct ndis_softc *);
static void ndis_map_sclist (void *, bus_dma_segment_t *,
int, bus_size_t, int);
extern struct mtx_pool *ndis_mtxpool;
static device_method_t ndis_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ndis_probe),
DEVMETHOD(device_attach, ndis_attach),
DEVMETHOD(device_detach, ndis_detach),
DEVMETHOD(device_shutdown, ndis_shutdown),
DEVMETHOD(device_suspend, ndis_suspend),
DEVMETHOD(device_resume, ndis_resume),
{ 0, 0 }
};
static driver_t ndis_driver = {
#ifdef NDIS_DEVNAME
NDIS_DEVNAME,
#else
"ndis",
#endif
ndis_methods,
sizeof(struct ndis_softc)
};
static devclass_t ndis_devclass;
#ifdef NDIS_MODNAME
#define NDIS_MODNAME_OVERRIDE_PCI(x) \
DRIVER_MODULE(x, pci, ndis_driver, ndis_devclass, 0, 0)
#define NDIS_MODNAME_OVERRIDE_CARDBUS(x) \
DRIVER_MODULE(x, cardbus, ndis_driver, ndis_devclass, 0, 0)
NDIS_MODNAME_OVERRIDE_PCI(NDIS_MODNAME);
NDIS_MODNAME_OVERRIDE_CARDBUS(NDIS_MODNAME);
#else
DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, 0, 0);
DRIVER_MODULE(ndis, cardbus, ndis_driver, ndis_devclass, 0, 0);
#endif
/*
* Program the 64-bit multicast hash filter.
*/
static void
ndis_setmulti(sc)
struct ndis_softc *sc;
{
struct ifnet *ifp;
struct ifmultiaddr *ifma;
int len, mclistsz, error;
uint8_t *mclist;
ifp = &sc->arpcom.ac_if;
if (!(ifp->if_flags & IFF_UP))
return;
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
sc->ndis_filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
len = sizeof(sc->ndis_filter);
error = ndis_set_info(sc, OID_GEN_CURRENT_PACKET_FILTER,
&sc->ndis_filter, &len);
if (error)
device_printf (sc->ndis_dev,
"set filter failed: %d\n", error);
return;
}
len = sizeof(mclistsz);
ndis_get_info(sc, OID_802_3_MAXIMUM_LIST_SIZE, &mclistsz, &len);
mclist = malloc(ETHER_ADDR_LEN * mclistsz, M_TEMP, M_NOWAIT|M_ZERO);
if (mclist == NULL) {
sc->ndis_filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
goto out;
}
sc->ndis_filter |= NDIS_PACKET_TYPE_MULTICAST;
len = 0;
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
mclist + (ETHER_ADDR_LEN * len), ETHER_ADDR_LEN);
len++;
if (len > mclistsz) {
sc->ndis_filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
sc->ndis_filter &= ~NDIS_PACKET_TYPE_MULTICAST;
goto out;
}
}
len = len * ETHER_ADDR_LEN;
error = ndis_set_info(sc, OID_802_3_MULTICAST_LIST, mclist, &len);
if (error) {
device_printf (sc->ndis_dev, "set mclist failed: %d\n", error);
sc->ndis_filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
sc->ndis_filter &= ~NDIS_PACKET_TYPE_MULTICAST;
}
out:
free(mclist, M_TEMP);
len = sizeof(sc->ndis_filter);
error = ndis_set_info(sc, OID_GEN_CURRENT_PACKET_FILTER,
&sc->ndis_filter, &len);
if (error)
device_printf (sc->ndis_dev, "set filter failed: %d\n", error);
return;
}
/*
* Probe for an NDIS device. Check the PCI vendor and device
* IDs against our list and return a device name if we find a match.
*/
static int
ndis_probe(dev)
device_t dev;
{
struct ndis_type *t;
t = ndis_devs;
while(t->ndis_name != NULL) {
if ((pci_get_vendor(dev) == t->ndis_vid) &&
(pci_get_device(dev) == t->ndis_did) &&
((pci_read_config(dev, PCIR_SUBVEND_0, 4) ==
t->ndis_subsys) || t->ndis_subsys == 0)) {
device_set_desc(dev, t->ndis_name);
return(0);
}
t++;
}
return(ENXIO);
}
static int
ndis_set_offload(sc)
struct ndis_softc *sc;
{
ndis_task_offload *nto;
ndis_task_offload_hdr *ntoh;
ndis_task_tcpip_csum *nttc;
struct ifnet *ifp;
int len, error;
ifp = &sc->arpcom.ac_if;
if (!(ifp->if_flags & IFF_UP))
return(EINVAL);
/* See if there's anything to set. */
error = ndis_probe_offload(sc);
if (error)
return(error);
if (sc->ndis_hwassist == 0 && ifp->if_capabilities == 0)
return(0);
len = sizeof(ndis_task_offload_hdr) + sizeof(ndis_task_offload) +
sizeof(ndis_task_tcpip_csum);
ntoh = malloc(len, M_TEMP, M_NOWAIT|M_ZERO);
if (ntoh == NULL)
return(ENOMEM);
ntoh->ntoh_vers = NDIS_TASK_OFFLOAD_VERSION;
ntoh->ntoh_len = sizeof(ndis_task_offload_hdr);
ntoh->ntoh_offset_firsttask = sizeof(ndis_task_offload_hdr);
ntoh->ntoh_encapfmt.nef_encaphdrlen = sizeof(struct ether_header);
ntoh->ntoh_encapfmt.nef_encap = NDIS_ENCAP_IEEE802_3;
ntoh->ntoh_encapfmt.nef_flags = NDIS_ENCAPFLAG_FIXEDHDRLEN;
nto = (ndis_task_offload *)((char *)ntoh +
ntoh->ntoh_offset_firsttask);
nto->nto_vers = NDIS_TASK_OFFLOAD_VERSION;
nto->nto_len = sizeof(ndis_task_offload);
nto->nto_task = NDIS_TASK_TCPIP_CSUM;
nto->nto_offset_nexttask = 0;
nto->nto_taskbuflen = sizeof(ndis_task_tcpip_csum);
nttc = (ndis_task_tcpip_csum *)nto->nto_taskbuf;
if (ifp->if_capenable & IFCAP_TXCSUM)
nttc->nttc_v4tx = sc->ndis_v4tx;
if (ifp->if_capenable & IFCAP_RXCSUM)
nttc->nttc_v4rx = sc->ndis_v4rx;
error = ndis_set_info(sc, OID_TCP_TASK_OFFLOAD, ntoh, &len);
free(ntoh, M_TEMP);
return(error);
}
static int
ndis_probe_offload(sc)
struct ndis_softc *sc;
{
ndis_task_offload *nto;
ndis_task_offload_hdr *ntoh;
ndis_task_tcpip_csum *nttc = NULL;
struct ifnet *ifp;
int len, error, dummy;
ifp = &sc->arpcom.ac_if;
len = sizeof(dummy);
error = ndis_get_info(sc, OID_TCP_TASK_OFFLOAD, &dummy, &len);
if (error != ENOSPC)
return(error);
ntoh = malloc(len, M_TEMP, M_NOWAIT|M_ZERO);
if (ntoh == NULL)
return(ENOMEM);
ntoh->ntoh_vers = NDIS_TASK_OFFLOAD_VERSION;
ntoh->ntoh_len = sizeof(ndis_task_offload_hdr);
ntoh->ntoh_encapfmt.nef_encaphdrlen = sizeof(struct ether_header);
ntoh->ntoh_encapfmt.nef_encap = NDIS_ENCAP_IEEE802_3;
ntoh->ntoh_encapfmt.nef_flags = NDIS_ENCAPFLAG_FIXEDHDRLEN;
error = ndis_get_info(sc, OID_TCP_TASK_OFFLOAD, ntoh, &len);
if (error) {
free(ntoh, M_TEMP);
return(error);
}
if (ntoh->ntoh_vers != NDIS_TASK_OFFLOAD_VERSION) {
free(ntoh, M_TEMP);
return(EINVAL);
}
nto = (ndis_task_offload *)((char *)ntoh +
ntoh->ntoh_offset_firsttask);
while (1) {
switch (nto->nto_task) {
case NDIS_TASK_TCPIP_CSUM:
nttc = (ndis_task_tcpip_csum *)nto->nto_taskbuf;
break;
/* Don't handle these yet. */
case NDIS_TASK_IPSEC:
case NDIS_TASK_TCP_LARGESEND:
default:
break;
}
if (nto->nto_offset_nexttask == 0)
break;
nto = (ndis_task_offload *)((char *)nto +
nto->nto_offset_nexttask);
}
if (nttc == NULL) {
free(ntoh, M_TEMP);
return(ENOENT);
}
sc->ndis_v4tx = nttc->nttc_v4tx;
sc->ndis_v4rx = nttc->nttc_v4rx;
if (nttc->nttc_v4tx & NDIS_TCPSUM_FLAGS_IP_CSUM)
sc->ndis_hwassist |= CSUM_IP;
if (nttc->nttc_v4tx & NDIS_TCPSUM_FLAGS_TCP_CSUM)
sc->ndis_hwassist |= CSUM_TCP;
if (nttc->nttc_v4tx & NDIS_TCPSUM_FLAGS_UDP_CSUM)
sc->ndis_hwassist |= CSUM_UDP;
if (sc->ndis_hwassist)
ifp->if_capabilities |= IFCAP_TXCSUM;
if (nttc->nttc_v4rx & NDIS_TCPSUM_FLAGS_IP_CSUM)
ifp->if_capabilities |= IFCAP_RXCSUM;
if (nttc->nttc_v4rx & NDIS_TCPSUM_FLAGS_TCP_CSUM)
ifp->if_capabilities |= IFCAP_RXCSUM;
if (nttc->nttc_v4rx & NDIS_TCPSUM_FLAGS_UDP_CSUM)
ifp->if_capabilities |= IFCAP_RXCSUM;
free(ntoh, M_TEMP);
return(0);
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
static int
ndis_attach(dev)
device_t dev;
{
u_char eaddr[ETHER_ADDR_LEN];
struct ndis_softc *sc;
struct ifnet *ifp = NULL;
int unit, error = 0, rid, len;
void *img;
struct ndis_type *t;
int i, devidx = 0, defidx = 0;
struct resource_list *rl;
struct resource_list_entry *rle;
sc = device_get_softc(dev);
unit = device_get_unit(dev);
sc->ndis_dev = dev;
sc->ndis_mtx = mtx_pool_alloc(ndis_mtxpool);
sc->ndis_intrmtx = mtx_pool_alloc(ndis_mtxpool);
/*
* Map control/status registers.
*/
pci_enable_busmaster(dev);
rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
if (rl != NULL) {
SLIST_FOREACH(rle, rl, link) {
switch (rle->type) {
case SYS_RES_IOPORT:
sc->ndis_io_rid = rle->rid;
sc->ndis_res_io = bus_alloc_resource(dev,
SYS_RES_IOPORT, &sc->ndis_io_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_io == NULL) {
device_printf(dev,
"couldn't map iospace\n");
error = ENXIO;
goto fail;
}
break;
case SYS_RES_MEMORY:
if (sc->ndis_res_altmem != NULL &&
sc->ndis_res_mem != NULL) {
device_printf(dev,
"too many memory resources\n");
error = ENXIO;
goto fail;
}
if (rle->rid == PCIR_BAR(2)) {
sc->ndis_altmem_rid = rle->rid;
sc->ndis_res_altmem =
bus_alloc_resource(dev,
SYS_RES_MEMORY,
&sc->ndis_altmem_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_altmem == NULL) {
device_printf(dev,
"couldn't map alt "
"memory\n");
error = ENXIO;
goto fail;
}
} else {
sc->ndis_mem_rid = rle->rid;
sc->ndis_res_mem =
bus_alloc_resource(dev,
SYS_RES_MEMORY,
&sc->ndis_mem_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_mem == NULL) {
device_printf(dev,
"couldn't map memory\n");
error = ENXIO;
goto fail;
}
}
break;
case SYS_RES_IRQ:
rid = rle->rid;
sc->ndis_irq = bus_alloc_resource(dev,
SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->ndis_irq == NULL) {
device_printf(dev,
"couldn't map interrupt\n");
error = ENXIO;
goto fail;
}
break;
default:
break;
}
sc->ndis_rescnt++;
}
}
/*
* Hook interrupt early, since calling the driver's
* init routine may trigger an interrupt.
*/
error = bus_setup_intr(dev, sc->ndis_irq, INTR_TYPE_NET,
ndis_intr, sc, &sc->ndis_intrhand);
if (error) {
device_printf(dev, "couldn't set up irq\n");
goto fail;
}
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
#define NDIS_NSEG_NEW 32
error = bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, NDIS_NSEG_NEW,/* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ndis_parent_tag);
if (error)
goto fail;
img = drv_data;
sc->ndis_regvals = ndis_regvals;
sc->ndis_iftype = PCIBus;
/* Figure out exactly which device we matched. */
t = ndis_devs;
while(t->ndis_name != NULL) {
if ((pci_get_vendor(dev) == t->ndis_vid) &&
(pci_get_device(dev) == t->ndis_did)) {
if (t->ndis_subsys == 0)
defidx = devidx;
else {
if (t->ndis_subsys ==
pci_read_config(dev, PCIR_SUBVEND_0, 4))
break;
}
}
t++;
devidx++;
}
if (ndis_devs[devidx].ndis_name == NULL)
sc->ndis_devidx = defidx;
else
sc->ndis_devidx = devidx;
sysctl_ctx_init(&sc->ndis_ctx);
/* Create sysctl registry nodes */
ndis_create_sysctls(sc);
/* Set up driver image in memory. */
ndis_load_driver((vm_offset_t)img, sc);
/* Tell the user what version of the API the driver is using. */
device_printf(dev, "NDIS API version: %d.%d\n",
sc->ndis_chars.nmc_version_major,
sc->ndis_chars.nmc_version_minor);
/* Do resource conversion. */
ndis_convert_res(sc);
/* Install our RX and TX interrupt handlers. */
sc->ndis_block.nmb_senddone_func = ndis_txeof;
sc->ndis_block.nmb_pktind_func = ndis_rxeof;
/* Call driver's init routine. */
if (ndis_init_nic(sc)) {
device_printf (dev, "init handler failed\n");
error = ENXIO;
goto fail;
}
/* Reset the adapter. */
ndis_reset_nic(sc);
/*
* Get station address from the driver.
*/
len = sizeof(eaddr);
ndis_get_info(sc, OID_802_3_CURRENT_ADDRESS, &eaddr, &len);
sc->ndis_unit = unit;
bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
/*
* Figure out of we're allowed to use multipacket sends
* with this driver, and if so, how many.
*/
if (sc->ndis_chars.nmc_sendsingle_func &&
sc->ndis_chars.nmc_sendmulti_func == NULL) {
sc->ndis_maxpkts = 1;
} else {
len = sizeof(sc->ndis_maxpkts);
ndis_get_info(sc, OID_GEN_MAXIMUM_SEND_PACKETS,
&sc->ndis_maxpkts, &len);
}
sc->ndis_txarray = malloc(sizeof(ndis_packet *) *
sc->ndis_maxpkts, M_DEVBUF, M_NOWAIT|M_ZERO);
sc->ndis_txpending = sc->ndis_maxpkts;
sc->ndis_oidcnt = 0;
/* Get supported oid list. */
ndis_get_supported_oids(sc, &sc->ndis_oids, &sc->ndis_oidcnt);
/* If the NDIS module requested scatter/gather, init maps. */
if (sc->ndis_sc)
ndis_init_dma(sc);
/*
* See if the OID_802_11_CONFIGURATION OID is
* supported by this driver. If it is, then this an 802.11
* wireless driver, and we should set up media for wireless.
*/
for (i = 0; i < sc->ndis_oidcnt; i++) {
if (sc->ndis_oids[i] == OID_802_11_CONFIGURATION) {
sc->ndis_80211++;
break;
}
}
/* Check for task offload support. */
ndis_probe_offload(sc);
/*
* An NDIS device was detected. Inform the world.
*/
device_printf(dev, "%s address: %6D\n",
sc->ndis_80211 ? "802.11" : "Ethernet", eaddr, ":");
ifp = &sc->arpcom.ac_if;
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = ndis_ioctl;
ifp->if_output = ether_output;
ifp->if_start = ndis_start;
ifp->if_watchdog = ndis_watchdog;
ifp->if_init = ndis_init;
ifp->if_baudrate = 10000000;
ifp->if_snd.ifq_maxlen = 50;
ifp->if_capenable = ifp->if_capabilities;
ifp->if_hwassist = sc->ndis_hwassist;
/* Do media setup */
if (sc->ndis_80211) {
struct ieee80211com *ic = (void *)ifp;
ndis_80211_config config;
ndis_80211_rates rates;
struct ndis_80211_nettype_list *ntl;
uint32_t arg;
int r;
ic->ic_phytype = IEEE80211_T_DS;
ic->ic_opmode = IEEE80211_M_STA;
ic->ic_caps = IEEE80211_C_IBSS;
ic->ic_state = IEEE80211_S_ASSOC;
ic->ic_modecaps = (1<<IEEE80211_MODE_AUTO);
len = 0;
r = ndis_get_info(sc, OID_802_11_NETWORK_TYPES_SUPPORTED,
NULL, &len);
if (r != ENOSPC)
goto nonettypes;
ntl = malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
r = ndis_get_info(sc, OID_802_11_NETWORK_TYPES_SUPPORTED,
ntl, &len);
if (r != 0) {
free(ntl, M_DEVBUF);
goto nonettypes;
}
for (i = 0; i < ntl->ntl_items; i++) {
switch (ntl->ntl_type[i]) {
case NDIS_80211_NETTYPE_11FH:
ic->ic_modecaps |= (1<<IEEE80211_MODE_11B);
break;
case NDIS_80211_NETTYPE_11DS:
ic->ic_modecaps |= (1<<IEEE80211_MODE_11B);
break;
case NDIS_80211_NETTYPE_11OFDM5:
ic->ic_modecaps |= (1<<IEEE80211_MODE_11A);
break;
case NDIS_80211_NETTYPE_11OFDM24:
ic->ic_modecaps |= (1<<IEEE80211_MODE_11G);
break;
default:
break;
}
}
free(ntl, M_DEVBUF);
nonettypes:
len = sizeof(rates);
bzero((char *)&rates, len);
r = ndis_get_info(sc, OID_802_11_SUPPORTED_RATES,
(void *)rates, &len);
if (r)
device_printf (dev, "get rates failed: 0x%x\n", r);
/*
* Since the supported rates only up to 8 can be supported,
* if this is not 802.11b we're just going to be faking it
* all up to heck.
*/
#define SETRATE(x, y) \
ic->ic_sup_rates[x].rs_rates[ic->ic_sup_rates[x].rs_nrates] = (y)
#define INCRATE(x) \
ic->ic_sup_rates[x].rs_nrates++
ic->ic_curmode = IEEE80211_MODE_AUTO;
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11A))
ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates = 0;
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11B))
ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates = 0;
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11G))
ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates = 0;
for (i = 0; i < len; i++) {
switch (rates[i] & IEEE80211_RATE_VAL) {
case 2:
case 4:
case 11:
case 10:
case 22:
if (!(ic->ic_modecaps &
(1<<IEEE80211_MODE_11B))) {
/* Lazy-init 802.11b. */
ic->ic_modecaps |=
(1<<IEEE80211_MODE_11B);
ic->ic_sup_rates[IEEE80211_MODE_11B].
rs_nrates = 0;
}
SETRATE(IEEE80211_MODE_11B, rates[i]);
INCRATE(IEEE80211_MODE_11B);
break;
default:
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11A)) {
SETRATE(IEEE80211_MODE_11A, rates[i]);
INCRATE(IEEE80211_MODE_11A);
}
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11G)) {
SETRATE(IEEE80211_MODE_11G, rates[i]);
INCRATE(IEEE80211_MODE_11G);
}
break;
}
}
/*
* If the hardware supports 802.11g, it most
* likely supports 802.11b and all of the
* 802.11b and 802.11g speeds, so maybe we can
* just cheat here. Just how in the heck do
* we detect turbo modes, though?
*/
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11G)) {
SETRATE(IEEE80211_MODE_11G, 47);
INCRATE(IEEE80211_MODE_11G);
SETRATE(IEEE80211_MODE_11G, 72);
INCRATE(IEEE80211_MODE_11G);
SETRATE(IEEE80211_MODE_11G, 96);
INCRATE(IEEE80211_MODE_11G);
SETRATE(IEEE80211_MODE_11G, 108);
INCRATE(IEEE80211_MODE_11G);
}
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11A)) {
SETRATE(IEEE80211_MODE_11A, 47);
INCRATE(IEEE80211_MODE_11A);
SETRATE(IEEE80211_MODE_11A, 72);
INCRATE(IEEE80211_MODE_11A);
SETRATE(IEEE80211_MODE_11A, 96);
INCRATE(IEEE80211_MODE_11A);
SETRATE(IEEE80211_MODE_11A, 108);
INCRATE(IEEE80211_MODE_11A);
}
#undef SETRATE
#undef INCRATE
/*
* Taking yet more guesses here.
*/
for (i = 1; i < IEEE80211_CHAN_MAX; i++) {
int chanflag = 0;
if (ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates)
chanflag |= IEEE80211_CHAN_G;
if (i <= 14)
chanflag |= IEEE80211_CHAN_B;
if (chanflag == 0)
break;
ic->ic_channels[i].ic_freq =
ieee80211_ieee2mhz(i, chanflag);
ic->ic_channels[i].ic_flags = chanflag;
}
i = sizeof(arg);
r = ndis_get_info(sc, OID_802_11_WEP_STATUS, &arg, &i);
if (arg != NDIS_80211_WEPSTAT_NOTSUPPORTED)
ic->ic_caps |= IEEE80211_C_WEP;
i = sizeof(arg);
r = ndis_get_info(sc, OID_802_11_POWER_MODE, &arg, &i);
if (r == 0)
ic->ic_caps |= IEEE80211_C_PMGT;
i = sizeof(config);
config.nc_length = i;
config.nc_fhconfig.ncf_length = sizeof(ndis_80211_config_fh);
r = ndis_get_info(sc, OID_802_11_CONFIGURATION, &config, &i);
if (r == 0) {
int chan;
chan = ieee80211_mhz2ieee(config.nc_dsconfig / 1000, 0);
if (chan < 0 || chan >= IEEE80211_CHAN_MAX) {
ic->ic_ibss_chan = &ic->ic_channels[1];
} else
ic->ic_ibss_chan = &ic->ic_channels[chan];
} else {
device_printf(sc->ndis_dev, "couldn't retrieve "
"channel info: %d\n", r);
ic->ic_ibss_chan = &ic->ic_channels[1];
}
bcopy(eaddr, &ic->ic_myaddr, sizeof(eaddr));
ieee80211_ifattach(ifp);
ieee80211_media_init(ifp, ieee80211_media_change,
ndis_media_status);
ic->ic_bss->ni_chan = ic->ic_ibss_chan;
} else {
ifmedia_init(&sc->ifmedia, IFM_IMASK, ndis_ifmedia_upd,
ndis_ifmedia_sts);
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
ifmedia_add(&sc->ifmedia,
IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
ether_ifattach(ifp, eaddr);
}
/* Override the status handler so we can detect link changes. */
sc->ndis_block.nmb_status_func = ndis_linksts;
sc->ndis_block.nmb_statusdone_func = ndis_linksts_done;
fail:
if (error)
ndis_detach(dev);
else {
/* We're done talking to the NIC for now; halt it. */
ifp->if_flags |= IFF_UP;
ndis_halt_nic(sc);
ifp->if_flags &= ~IFF_UP;
}
return(error);
}
/*
* Shutdown hardware and free up resources. This can be called any
* time after the mutex has been initialized. It is called in both
* the error case in attach and the normal detach case so it needs
* to be careful about only freeing resources that have actually been
* allocated.
*/
static int
ndis_detach(dev)
device_t dev;
{
struct ndis_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
KASSERT(mtx_initialized(sc->ndis_mtx),
("ndis mutex not initialized"));
KASSERT(mtx_initialized(sc->ndis_intrmtx),
("ndis interrupt mutex not initialized"));
NDIS_LOCK(sc);
ifp = &sc->arpcom.ac_if;
ifp->if_flags &= ~IFF_UP;
if (device_is_attached(dev)) {
NDIS_UNLOCK(sc);
ndis_stop(sc);
if (sc->ndis_80211)
ieee80211_ifdetach(ifp);
else
ether_ifdetach(ifp);
} else
NDIS_UNLOCK(sc);
bus_generic_detach(dev);
if (sc->ndis_intrhand)
bus_teardown_intr(dev, sc->ndis_irq, sc->ndis_intrhand);
if (sc->ndis_irq)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ndis_irq);
if (sc->ndis_res_io)
bus_release_resource(dev, SYS_RES_IOPORT,
sc->ndis_io_rid, sc->ndis_res_io);
if (sc->ndis_res_mem)
bus_release_resource(dev, SYS_RES_MEMORY,
sc->ndis_mem_rid, sc->ndis_res_mem);
if (sc->ndis_res_altmem)
bus_release_resource(dev, SYS_RES_MEMORY,
sc->ndis_altmem_rid, sc->ndis_res_altmem);
if (sc->ndis_sc)
ndis_destroy_dma(sc);
ndis_unload_driver((void *)ifp);
bus_dma_tag_destroy(sc->ndis_parent_tag);
sysctl_ctx_free(&sc->ndis_ctx);
return(0);
}
static int
ndis_suspend(dev)
device_t dev;
{
struct ndis_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = &sc->arpcom.ac_if;
#ifdef notdef
if (ifp->if_flags & IFF_UP)
ndis_stop(sc);
#endif
return(0);
}
static int
ndis_resume(dev)
device_t dev;
{
struct ndis_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = &sc->arpcom.ac_if;
if (ifp->if_flags & IFF_UP)
ndis_init(sc);
return(0);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*
* When handling received NDIS packets, the 'status' field in the
* out-of-band portion of the ndis_packet has special meaning. In the
* most common case, the underlying NDIS driver will set this field
* to NDIS_STATUS_SUCCESS, which indicates that it's ok for us to
* take posession of it. We then change the status field to
* NDIS_STATUS_PENDING to tell the driver that we now own the packet,
* and that we will return it at some point in the future via the
* return packet handler.
*
* If the driver hands us a packet with a status of NDIS_STATUS_RESOURCES,
* this means the driver is running out of packet/buffer resources and
* wants to maintain ownership of the packet. In this case, we have to
* copy the packet data into local storage and let the driver keep the
* packet.
*/
__stdcall static void
ndis_rxeof(adapter, packets, pktcnt)
ndis_handle adapter;
ndis_packet **packets;
uint32_t pktcnt;
{
struct ndis_softc *sc;
ndis_miniport_block *block;
ndis_packet *p;
uint32_t s;
ndis_tcpip_csum *csum;
struct ifnet *ifp;
struct mbuf *m0, *m;
int i;
block = (ndis_miniport_block *)adapter;
sc = (struct ndis_softc *)(block->nmb_ifp);
ifp = block->nmb_ifp;
for (i = 0; i < pktcnt; i++) {
p = packets[i];
/* Stash the softc here so ptom can use it. */
p->np_softc = sc;
if (ndis_ptom(&m0, p)) {
device_printf (sc->ndis_dev, "ptom failed\n");
if (p->np_oob.npo_status == NDIS_STATUS_SUCCESS)
ndis_return_packet(sc, p);
} else {
if (p->np_oob.npo_status == NDIS_STATUS_RESOURCES) {
m = m_dup(m0, M_DONTWAIT);
m_freem(m0);
if (m == NULL)
ifp->if_ierrors++;
else
m0 = m;
} else
p->np_oob.npo_status = NDIS_STATUS_PENDING;
m0->m_pkthdr.rcvif = ifp;
ifp->if_ipackets++;
/* Deal with checksum offload. */
if (ifp->if_capenable & IFCAP_RXCSUM &&
p->np_ext.npe_info[ndis_tcpipcsum_info] != NULL) {
s = (uintptr_t)
p->np_ext.npe_info[ndis_tcpipcsum_info];
csum = (ndis_tcpip_csum *)&s;
if (csum->u.ntc_rxflags &
NDIS_RXCSUM_IP_PASSED)
m0->m_pkthdr.csum_flags |=
CSUM_IP_CHECKED|CSUM_IP_VALID;
if (csum->u.ntc_rxflags &
(NDIS_RXCSUM_TCP_PASSED |
NDIS_RXCSUM_UDP_PASSED)) {
m0->m_pkthdr.csum_flags |=
CSUM_DATA_VALID|CSUM_PSEUDO_HDR;
m0->m_pkthdr.csum_data = 0xFFFF;
}
}
(*ifp->if_input)(ifp, m0);
}
}
return;
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
__stdcall static void
ndis_txeof(adapter, packet, status)
ndis_handle adapter;
ndis_packet *packet;
ndis_status status;
{
struct ndis_softc *sc;
ndis_miniport_block *block;
struct ifnet *ifp;
int idx;
struct mbuf *m;
block = (ndis_miniport_block *)adapter;
sc = (struct ndis_softc *)block->nmb_ifp;
ifp = block->nmb_ifp;
m = packet->np_m0;
idx = packet->np_txidx;
if (sc->ndis_sc)
bus_dmamap_unload(sc->ndis_ttag, sc->ndis_tmaps[idx]);
ndis_free_packet(packet);
m_freem(m);
NDIS_LOCK(sc);
sc->ndis_txarray[idx] = NULL;
sc->ndis_txpending++;
if (status == NDIS_STATUS_SUCCESS)
ifp->if_opackets++;
else
ifp->if_oerrors++;
ifp->if_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
NDIS_UNLOCK(sc);
ndis_sched(ndis_starttask, ifp, NDIS_TASKQUEUE);
return;
}
__stdcall static void
ndis_linksts(adapter, status, sbuf, slen)
ndis_handle adapter;
ndis_status status;
void *sbuf;
uint32_t slen;
{
ndis_miniport_block *block;
block = adapter;
block->nmb_getstat = status;
return;
}
__stdcall static void
ndis_linksts_done(adapter)
ndis_handle adapter;
{
ndis_miniport_block *block;
struct ndis_softc *sc;
struct ifnet *ifp;
block = adapter;
ifp = block->nmb_ifp;
sc = ifp->if_softc;
if (!(ifp->if_flags & IFF_UP))
return;
switch (block->nmb_getstat) {
case NDIS_STATUS_MEDIA_CONNECT:
ndis_sched(ndis_ticktask, sc, NDIS_TASKQUEUE);
ndis_sched(ndis_starttask, ifp, NDIS_TASKQUEUE);
break;
case NDIS_STATUS_MEDIA_DISCONNECT:
if (sc->ndis_80211)
ndis_getstate_80211(sc);
ndis_sched(ndis_ticktask, sc, NDIS_TASKQUEUE);
break;
default:
break;
}
return;
}
static void
ndis_intrtask(arg)
void *arg;
{
struct ndis_softc *sc;
struct ifnet *ifp;
sc = arg;
ifp = &sc->arpcom.ac_if;
ndis_intrhand(sc);
mtx_pool_lock(ndis_mtxpool, sc->ndis_intrmtx);
ndis_enable_intr(sc);
mtx_pool_unlock(ndis_mtxpool, sc->ndis_intrmtx);
return;
}
static void
ndis_intr(arg)
void *arg;
{
struct ndis_softc *sc;
struct ifnet *ifp;
int is_our_intr = 0;
int call_isr = 0;
sc = arg;
ifp = &sc->arpcom.ac_if;
if (!(ifp->if_flags & IFF_UP) ||
sc->ndis_block.nmb_miniportadapterctx == NULL)
return;
mtx_pool_lock(ndis_mtxpool, sc->ndis_intrmtx);
if (sc->ndis_block.nmb_interrupt->ni_isrreq == TRUE)
ndis_isr(sc, &is_our_intr, &call_isr);
else {
ndis_disable_intr(sc);
call_isr = 1;
}
mtx_pool_unlock(ndis_mtxpool, sc->ndis_intrmtx);
if ((is_our_intr || call_isr) && (ifp->if_flags & IFF_UP))
ndis_sched(ndis_intrtask, ifp, NDIS_SWI);
return;
}
static void
ndis_tick(xsc)
void *xsc;
{
struct ndis_softc *sc;
sc = xsc;
ndis_sched(ndis_ticktask, sc, NDIS_TASKQUEUE);
sc->ndis_stat_ch = timeout(ndis_tick, sc, hz *
sc->ndis_block.nmb_checkforhangsecs);
}
static void
ndis_ticktask(xsc)
void *xsc;
{
struct ndis_softc *sc;
__stdcall ndis_checkforhang_handler hangfunc;
uint8_t rval;
ndis_media_state linkstate;
int error, len;
sc = xsc;
len = sizeof(linkstate);
error = ndis_get_info(sc, OID_GEN_MEDIA_CONNECT_STATUS,
(void *)&linkstate, &len);
NDIS_LOCK(sc);
if (sc->ndis_link == 0 && linkstate == nmc_connected) {
device_printf(sc->ndis_dev, "link up\n");
sc->ndis_link = 1;
NDIS_UNLOCK(sc);
if (sc->ndis_80211)
ndis_getstate_80211(sc);
NDIS_LOCK(sc);
}
if (sc->ndis_link == 1 && linkstate == nmc_disconnected) {
device_printf(sc->ndis_dev, "link down\n");
sc->ndis_link = 0;
}
NDIS_UNLOCK(sc);
hangfunc = sc->ndis_chars.nmc_checkhang_func;
if (hangfunc != NULL) {
rval = hangfunc(sc->ndis_block.nmb_miniportadapterctx);
if (rval == TRUE)
ndis_reset_nic(sc);
}
return;
}
static void
ndis_map_sclist(arg, segs, nseg, mapsize, error)
void *arg;
bus_dma_segment_t *segs;
int nseg;
bus_size_t mapsize;
int error;
{
struct ndis_sc_list *sclist;
int i;
if (error || arg == NULL)
return;
sclist = arg;
sclist->nsl_frags = nseg;
for (i = 0; i < nseg; i++) {
sclist->nsl_elements[i].nse_addr.np_quad = segs[i].ds_addr;
sclist->nsl_elements[i].nse_len = segs[i].ds_len;
}
return;
}
static void
ndis_starttask(arg)
void *arg;
{
struct ifnet *ifp;
ifp = arg;
if (ifp->if_snd.ifq_head != NULL)
ndis_start(ifp);
return;
}
/*
* Main transmit routine. To make NDIS drivers happy, we need to
* transform mbuf chains into NDIS packets and feed them to the
* send packet routines. Most drivers allow you to send several
* packets at once (up to the maxpkts limit). Unfortunately, rather
* that accepting them in the form of a linked list, they expect
* a contiguous array of pointers to packets.
*
* For those drivers which use the NDIS scatter/gather DMA mechanism,
* we need to perform busdma work here. Those that use map registers
* will do the mapping themselves on a buffer by buffer basis.
*/
static void
ndis_start(ifp)
struct ifnet *ifp;
{
struct ndis_softc *sc;
struct mbuf *m = NULL;
ndis_packet **p0 = NULL, *p = NULL;
ndis_tcpip_csum *csum;
int pcnt = 0;
sc = ifp->if_softc;
NDIS_LOCK(sc);
if (!sc->ndis_link || ifp->if_flags & IFF_OACTIVE) {
NDIS_UNLOCK(sc);
return;
}
p0 = &sc->ndis_txarray[sc->ndis_txidx];
while(sc->ndis_txpending) {
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
sc->ndis_txarray[sc->ndis_txidx] = NULL;
if (ndis_mtop(m, &sc->ndis_txarray[sc->ndis_txidx])) {
NDIS_UNLOCK(sc);
IF_PREPEND(&ifp->if_snd, m);
return;
}
/*
* Save pointer to original mbuf
* so we can free it later.
*/
p = sc->ndis_txarray[sc->ndis_txidx];
p->np_txidx = sc->ndis_txidx;
p->np_m0 = m;
p->np_oob.npo_status = NDIS_STATUS_PENDING;
/*
* Do scatter/gather processing, if driver requested it.
*/
if (sc->ndis_sc) {
bus_dmamap_load_mbuf(sc->ndis_ttag,
sc->ndis_tmaps[sc->ndis_txidx], m,
ndis_map_sclist, &p->np_sclist, BUS_DMA_NOWAIT);
bus_dmamap_sync(sc->ndis_ttag,
sc->ndis_tmaps[sc->ndis_txidx],
BUS_DMASYNC_PREREAD);
p->np_ext.npe_info[ndis_sclist_info] = &p->np_sclist;
}
/* Handle checksum offload. */
if (ifp->if_capenable & IFCAP_TXCSUM &&
m->m_pkthdr.csum_flags) {
csum = (ndis_tcpip_csum *)
&p->np_ext.npe_info[ndis_tcpipcsum_info];
csum->u.ntc_txflags = NDIS_TXCSUM_DO_IPV4;
if (m->m_pkthdr.csum_flags & CSUM_IP)
csum->u.ntc_txflags |= NDIS_TXCSUM_DO_IP;
if (m->m_pkthdr.csum_flags & CSUM_TCP)
csum->u.ntc_txflags |= NDIS_TXCSUM_DO_TCP;
if (m->m_pkthdr.csum_flags & CSUM_UDP)
csum->u.ntc_txflags |= NDIS_TXCSUM_DO_UDP;
p->np_private.npp_flags = NDIS_PROTOCOL_ID_TCP_IP;
}
NDIS_INC(sc);
sc->ndis_txpending--;
pcnt++;
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
BPF_MTAP(ifp, m);
/*
* The array that p0 points to must appear contiguous,
* so we must not wrap past the end of sc->ndis_txarray[].
* If it looks like we're about to wrap, break out here
* so the this batch of packets can be transmitted, then
* wait for txeof to ask us to send the rest.
*/
if (sc->ndis_txidx == 0)
break;
}
if (sc->ndis_txpending == 0)
ifp->if_flags |= IFF_OACTIVE;
/*
* Set a timeout in case the chip goes out to lunch.
*/
ifp->if_timer = 5;
NDIS_UNLOCK(sc);
if (sc->ndis_maxpkts == 1)
ndis_send_packet(sc, p);
else
ndis_send_packets(sc, p0, pcnt);
return;
}
static void
ndis_init(xsc)
void *xsc;
{
struct ndis_softc *sc = xsc;
struct ifnet *ifp = &sc->arpcom.ac_if;
int i, error;
/*
* Avoid reintializing the link unnecessarily.
* This should be dealt with in a better way by
* fixing the upper layer modules so they don't
* call ifp->if_init() quite as often.
*/
if (sc->ndis_link && sc->ndis_skip)
return;
/*
* Cancel pending I/O and free all RX/TX buffers.
*/
ndis_reset_nic(sc);
ndis_stop(sc);
if (ndis_init_nic(sc))
return;
/* Init our MAC address */
/* Program the packet filter */
sc->ndis_filter = NDIS_PACKET_TYPE_DIRECTED;
if (ifp->if_flags & IFF_BROADCAST)
sc->ndis_filter |= NDIS_PACKET_TYPE_BROADCAST;
if (ifp->if_flags & IFF_PROMISC)
sc->ndis_filter |= NDIS_PACKET_TYPE_PROMISCUOUS;
i = sizeof(sc->ndis_filter);
error = ndis_set_info(sc, OID_GEN_CURRENT_PACKET_FILTER,
&sc->ndis_filter, &i);
if (error)
device_printf (sc->ndis_dev, "set filter failed: %d\n", error);
/*
* Program the multicast filter, if necessary.
*/
ndis_setmulti(sc);
/* Setup task offload. */
ndis_set_offload(sc);
/* Enable interrupts. */
ndis_enable_intr(sc);
if (sc->ndis_80211)
ndis_setstate_80211(sc);
NDIS_LOCK(sc);
sc->ndis_txidx = 0;
sc->ndis_txpending = sc->ndis_maxpkts;
sc->ndis_link = 0;
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
NDIS_UNLOCK(sc);
/*
* Some drivers don't set this value. The NDIS spec says
* the default checkforhang timeout is approximately 2
* seconds.
*/
if (sc->ndis_block.nmb_checkforhangsecs == 0)
sc->ndis_block.nmb_checkforhangsecs = 2;
sc->ndis_stat_ch = timeout(ndis_tick, sc,
hz * sc->ndis_block.nmb_checkforhangsecs);
return;
}
/*
* Set media options.
*/
static int
ndis_ifmedia_upd(ifp)
struct ifnet *ifp;
{
struct ndis_softc *sc;
sc = ifp->if_softc;
if (ifp->if_flags & IFF_UP)
ndis_init(sc);
return(0);
}
/*
* Report current media status.
*/
static void
ndis_ifmedia_sts(ifp, ifmr)
struct ifnet *ifp;
struct ifmediareq *ifmr;
{
struct ndis_softc *sc;
uint32_t media_info;
ndis_media_state linkstate;
int error, len;
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (!(ifp->if_flags & IFF_UP))
return;
sc = ifp->if_softc;
len = sizeof(linkstate);
error = ndis_get_info(sc, OID_GEN_MEDIA_CONNECT_STATUS,
(void *)&linkstate, &len);
len = sizeof(media_info);
error = ndis_get_info(sc, OID_GEN_LINK_SPEED,
(void *)&media_info, &len);
if (linkstate == nmc_connected)
ifmr->ifm_status |= IFM_ACTIVE;
switch(media_info) {
case 100000:
ifmr->ifm_active |= IFM_10_T;
break;
case 1000000:
ifmr->ifm_active |= IFM_100_TX;
break;
case 10000000:
ifmr->ifm_active |= IFM_1000_T;
break;
default:
device_printf(sc->ndis_dev, "unknown speed: %d\n", media_info);
break;
}
return;
}
static void
ndis_setstate_80211(sc)
struct ndis_softc *sc;
{
struct ieee80211com *ic;
ndis_80211_ssid ssid;
ndis_80211_config config;
ndis_80211_wep wep;
int i, rval = 0, len;
uint32_t arg;
struct ifnet *ifp;
ic = &sc->ic;
ifp = &sc->ic.ic_ac.ac_if;
if (!(ifp->if_flags & IFF_UP))
return;
/* Set network infrastructure mode. */
len = sizeof(arg);
if (ic->ic_opmode == IEEE80211_M_IBSS)
arg = NDIS_80211_NET_INFRA_IBSS;
else
arg = NDIS_80211_NET_INFRA_BSS;
rval = ndis_set_info(sc, OID_802_11_INFRASTRUCTURE_MODE, &arg, &len);
if (rval)
device_printf (sc->ndis_dev, "set infra failed: %d\n", rval);
/* Set WEP */
#ifdef IEEE80211_F_WEPON
if (ic->ic_flags & IEEE80211_F_WEPON) {
#else
if (ic->ic_wep_mode >= IEEE80211_WEP_ON) {
#endif
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
if (ic->ic_nw_keys[i].wk_len) {
bzero((char *)&wep, sizeof(wep));
wep.nw_keylen = ic->ic_nw_keys[i].wk_len;
#ifdef notdef
/* 5 and 13 are the only valid key lengths */
if (ic->ic_nw_keys[i].wk_len < 5)
wep.nw_keylen = 5;
else if (ic->ic_nw_keys[i].wk_len > 5 &&
ic->ic_nw_keys[i].wk_len < 13)
wep.nw_keylen = 13;
#endif
wep.nw_keyidx = i;
wep.nw_length = (sizeof(uint32_t) * 3)
+ wep.nw_keylen;
if (i == ic->ic_wep_txkey)
wep.nw_keyidx |= NDIS_80211_WEPKEY_TX;
bcopy(ic->ic_nw_keys[i].wk_key,
wep.nw_keydata, wep.nw_length);
len = sizeof(wep);
rval = ndis_set_info(sc,
OID_802_11_ADD_WEP, &wep, &len);
if (rval)
device_printf(sc->ndis_dev,
"set wepkey failed: %d\n", rval);
}
}
arg = NDIS_80211_WEPSTAT_ENABLED;
len = sizeof(arg);
rval = ndis_set_info(sc, OID_802_11_WEP_STATUS, &arg, &len);
if (rval)
device_printf(sc->ndis_dev,
"enable WEP failed: %d\n", rval);
#ifndef IEEE80211_F_WEPON
if (ic->ic_wep_mode != IEEE80211_WEP_8021X &&
ic->ic_wep_mode != IEEE80211_WEP_ON)
arg = NDIS_80211_PRIVFILT_ACCEPTALL;
else
#endif
arg = NDIS_80211_PRIVFILT_8021XWEP;
len = sizeof(arg);
rval = ndis_set_info(sc, OID_802_11_PRIVACY_FILTER, &arg, &len);
#ifdef IEEE80211_WEP_8021X /*IEEE80211_F_WEPON*/
/* Accept that we only have "shared" and 802.1x modes. */
if (rval == 0) {
if (arg == NDIS_80211_PRIVFILT_ACCEPTALL)
ic->ic_wep_mode = IEEE80211_WEP_MIXED;
else
ic->ic_wep_mode = IEEE80211_WEP_8021X;
}
#endif
arg = NDIS_80211_AUTHMODE_AUTO;
} else {
arg = NDIS_80211_WEPSTAT_DISABLED;
len = sizeof(arg);
ndis_set_info(sc, OID_802_11_WEP_STATUS, &arg, &len);
arg = NDIS_80211_AUTHMODE_OPEN;
}
len = sizeof(arg);
rval = ndis_set_info(sc, OID_802_11_AUTHENTICATION_MODE, &arg, &len);
#ifdef notyet
if (rval)
device_printf (sc->ndis_dev, "set auth failed: %d\n", rval);
#endif
/* Set SSID. */
len = sizeof(ssid);
bzero((char *)&ssid, len);
ssid.ns_ssidlen = ic->ic_des_esslen;
if (ssid.ns_ssidlen == 0) {
ssid.ns_ssidlen = 1;
} else
bcopy(ic->ic_des_essid, ssid.ns_ssid, ssid.ns_ssidlen);
rval = ndis_set_info(sc, OID_802_11_SSID, &ssid, &len);
if (rval)
device_printf (sc->ndis_dev, "set ssid failed: %d\n", rval);
len = sizeof(config);
bzero((char *)&config, len);
config.nc_length = len;
config.nc_fhconfig.ncf_length = sizeof(ndis_80211_config_fh);
rval = ndis_get_info(sc, OID_802_11_CONFIGURATION, &config, &len);
if (rval == 0) {
int chan;
chan = ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan);
if (chan != ieee80211_mhz2ieee(config.nc_dsconfig / 1000, 0)) {
config.nc_dsconfig =
ic->ic_bss->ni_chan->ic_freq * 1000;
len = sizeof(config);
config.nc_length = len;
config.nc_fhconfig.ncf_length =
sizeof(ndis_80211_config_fh);
rval = ndis_set_info(sc, OID_802_11_CONFIGURATION,
&config, &len);
if (rval)
device_printf(sc->ndis_dev, "couldn't change "
"DS config to %ukHz: %d\n",
config.nc_dsconfig, rval);
}
} else
device_printf(sc->ndis_dev, "couldn't retrieve "
"channel info: %d\n", rval);
return;
}
static void
ndis_media_status(struct ifnet *ifp, struct ifmediareq *imr)
{
struct ieee80211com *ic = (void *)ifp;
struct ieee80211_node *ni = NULL;
imr->ifm_status = IFM_AVALID;
imr->ifm_active = IFM_IEEE80211;
if (ic->ic_state == IEEE80211_S_RUN)
imr->ifm_status |= IFM_ACTIVE;
imr->ifm_active |= IFM_AUTO;
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
ni = ic->ic_bss;
/* calculate rate subtype */
imr->ifm_active |= ieee80211_rate2media(ic,
ni->ni_rates.rs_rates[ni->ni_txrate], ic->ic_curmode);
break;
case IEEE80211_M_IBSS:
ni = ic->ic_bss;
/* calculate rate subtype */
imr->ifm_active |= ieee80211_rate2media(ic,
ni->ni_rates.rs_rates[ni->ni_txrate], ic->ic_curmode);
imr->ifm_active |= IFM_IEEE80211_ADHOC;
break;
case IEEE80211_M_AHDEMO:
/* should not come here */
break;
case IEEE80211_M_HOSTAP:
imr->ifm_active |= IFM_IEEE80211_HOSTAP;
break;
case IEEE80211_M_MONITOR:
imr->ifm_active |= IFM_IEEE80211_MONITOR;
break;
}
switch (ic->ic_curmode) {
case IEEE80211_MODE_11A:
imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11A);
break;
case IEEE80211_MODE_11B:
imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11B);
break;
case IEEE80211_MODE_11G:
imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11G);
break;
case IEEE80211_MODE_TURBO:
imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11A)
| IFM_IEEE80211_TURBO;
break;
}
}
static int
ndis_get_assoc(sc, assoc)
struct ndis_softc *sc;
ndis_wlan_bssid_ex *assoc;
{
ndis_80211_bssid_list_ex *bl;
ndis_wlan_bssid_ex *bs;
ndis_80211_macaddr bssid;
int i, len, error;
if (!sc->ndis_link)
return(ENOENT);
len = sizeof(bssid);
error = ndis_get_info(sc, OID_802_11_BSSID, &bssid, &len);
if (error) {
device_printf(sc->ndis_dev, "failed to get bssid\n");
return(ENOENT);
}
len = 0;
error = ndis_get_info(sc, OID_802_11_BSSID_LIST, NULL, &len);
if (error != ENOSPC) {
device_printf(sc->ndis_dev, "bssid_list failed\n");
return (error);
}
bl = malloc(len, M_TEMP, M_NOWAIT|M_ZERO);
error = ndis_get_info(sc, OID_802_11_BSSID_LIST, bl, &len);
if (error) {
free(bl, M_TEMP);
device_printf(sc->ndis_dev, "bssid_list failed\n");
return (error);
}
bs = (ndis_wlan_bssid_ex *)&bl->nblx_bssid[0];
for (i = 0; i < bl->nblx_items; i++) {
if (bcmp(bs->nwbx_macaddr, bssid, sizeof(bssid)) == 0) {
bcopy((char *)bs, (char *)assoc, bs->nwbx_len);
free(bl, M_TEMP);
return(0);
}
bs = (ndis_wlan_bssid_ex *)((char *)bs + bs->nwbx_len);
}
free(bl, M_TEMP);
return(ENOENT);
}
static void
ndis_getstate_80211(sc)
struct ndis_softc *sc;
{
struct ieee80211com *ic;
ndis_80211_ssid ssid;
ndis_80211_config config;
ndis_wlan_bssid_ex bs;
int rval, len, i = 0;
uint32_t arg;
struct ifnet *ifp;
ic = &sc->ic;
ifp = &sc->ic.ic_ac.ac_if;
if (!(ifp->if_flags & IFF_UP))
return;
if (sc->ndis_link)
ic->ic_state = IEEE80211_S_RUN;
else
ic->ic_state = IEEE80211_S_ASSOC;
/*
* If we're associated, retrieve info on the current bssid.
*/
if ((rval = ndis_get_assoc(sc, &bs)) == 0) {
switch(bs.nwbx_nettype) {
case NDIS_80211_NETTYPE_11FH:
case NDIS_80211_NETTYPE_11DS:
ic->ic_curmode = IEEE80211_MODE_11B;
break;
case NDIS_80211_NETTYPE_11OFDM5:
ic->ic_curmode = IEEE80211_MODE_11A;
break;
case NDIS_80211_NETTYPE_11OFDM24:
ic->ic_curmode = IEEE80211_MODE_11G;
break;
default:
device_printf(sc->ndis_dev,
"unknown nettype %d\n", arg);
break;
}
} else
return;
len = sizeof(ssid);
bzero((char *)&ssid, len);
rval = ndis_get_info(sc, OID_802_11_SSID, &ssid, &len);
if (rval)
device_printf (sc->ndis_dev, "get ssid failed: %d\n", rval);
bcopy(ssid.ns_ssid, ic->ic_bss->ni_essid, ssid.ns_ssidlen);
ic->ic_bss->ni_esslen = ssid.ns_ssidlen;
len = sizeof(arg);
rval = ndis_get_info(sc, OID_GEN_LINK_SPEED, &arg, &len);
if (rval)
device_printf (sc->ndis_dev, "get link speed failed: %d\n",
rval);
if (ic->ic_modecaps & (1<<IEEE80211_MODE_11B)) {
ic->ic_bss->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B];
for (i = 0; i < ic->ic_bss->ni_rates.rs_nrates; i++) {
if ((ic->ic_bss->ni_rates.rs_rates[i] &
IEEE80211_RATE_VAL) == arg / 5000)
break;
}
}
if (i == ic->ic_bss->ni_rates.rs_nrates &&
ic->ic_modecaps & (1<<IEEE80211_MODE_11G)) {
ic->ic_bss->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11G];
for (i = 0; i < ic->ic_bss->ni_rates.rs_nrates; i++) {
if ((ic->ic_bss->ni_rates.rs_rates[i] &
IEEE80211_RATE_VAL) == arg / 5000)
break;
}
}
if (i == ic->ic_bss->ni_rates.rs_nrates)
device_printf(sc->ndis_dev, "no matching rate for: %d\n",
arg / 5000);
else
ic->ic_bss->ni_txrate = i;
if (ic->ic_caps & IEEE80211_C_PMGT) {
len = sizeof(arg);
rval = ndis_get_info(sc, OID_802_11_POWER_MODE, &arg, &len);
if (rval)
device_printf(sc->ndis_dev,
"get power mode failed: %d\n", rval);
if (arg == NDIS_80211_POWERMODE_CAM)
ic->ic_flags &= ~IEEE80211_F_PMGTON;
else
ic->ic_flags |= IEEE80211_F_PMGTON;
}
len = sizeof(config);
bzero((char *)&config, len);
config.nc_length = len;
config.nc_fhconfig.ncf_length = sizeof(ndis_80211_config_fh);
rval = ndis_get_info(sc, OID_802_11_CONFIGURATION, &config, &len);
if (rval == 0) {
int chan;
chan = ieee80211_mhz2ieee(config.nc_dsconfig / 1000, 0);
if (chan < 0 || chan >= IEEE80211_CHAN_MAX) {
if (ifp->if_flags & IFF_DEBUG)
device_printf(sc->ndis_dev, "current channel "
"(%uMHz) out of bounds\n",
config.nc_dsconfig / 1000);
ic->ic_bss->ni_chan = &ic->ic_channels[1];
} else
ic->ic_bss->ni_chan = &ic->ic_channels[chan];
} else
device_printf(sc->ndis_dev, "couldn't retrieve "
"channel info: %d\n", rval);
/*
len = sizeof(arg);
rval = ndis_get_info(sc, OID_802_11_WEP_STATUS, &arg, &len);
if (rval)
device_printf (sc->ndis_dev,
"get wep status failed: %d\n", rval);
if (arg == NDIS_80211_WEPSTAT_ENABLED)
ic->ic_flags |= IEEE80211_F_WEPON;
else
ic->ic_flags &= ~IEEE80211_F_WEPON;
*/
return;
}
static int
ndis_ioctl(ifp, command, data)
struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct ndis_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *) data;
int i, error = 0;
/*NDIS_LOCK(sc);*/
switch(command) {
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (ifp->if_flags & IFF_RUNNING &&
ifp->if_flags & IFF_PROMISC &&
!(sc->ndis_if_flags & IFF_PROMISC)) {
sc->ndis_filter |=
NDIS_PACKET_TYPE_PROMISCUOUS;
i = sizeof(sc->ndis_filter);
error = ndis_set_info(sc,
OID_GEN_CURRENT_PACKET_FILTER,
&sc->ndis_filter, &i);
} else if (ifp->if_flags & IFF_RUNNING &&
!(ifp->if_flags & IFF_PROMISC) &&
sc->ndis_if_flags & IFF_PROMISC) {
sc->ndis_filter &=
~NDIS_PACKET_TYPE_PROMISCUOUS;
i = sizeof(sc->ndis_filter);
error = ndis_set_info(sc,
OID_GEN_CURRENT_PACKET_FILTER,
&sc->ndis_filter, &i);
} else
ndis_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
ndis_stop(sc);
}
sc->ndis_if_flags = ifp->if_flags;
error = 0;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
ndis_setmulti(sc);
error = 0;
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
if (sc->ndis_80211) {
error = ieee80211_ioctl(ifp, command, data);
if (error == ENETRESET) {
ndis_setstate_80211(sc);
/*ndis_init(sc);*/
error = 0;
}
} else
error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
break;
case SIOCSIFCAP:
ifp->if_capenable = ifr->ifr_reqcap;
if (ifp->if_capenable & IFCAP_TXCSUM)
ifp->if_hwassist = sc->ndis_hwassist;
else
ifp->if_hwassist = 0;
ndis_set_offload(sc);
break;
case SIOCGIFGENERIC:
case SIOCSIFGENERIC:
if (sc->ndis_80211 && ifp->if_flags & IFF_UP) {
if (command == SIOCGIFGENERIC)
error = ndis_wi_ioctl_get(ifp, command, data);
else
error = ndis_wi_ioctl_set(ifp, command, data);
} else
error = ENOTTY;
if (error != ENOTTY)
break;
default:
sc->ndis_skip = 1;
if (sc->ndis_80211) {
error = ieee80211_ioctl(ifp, command, data);
if (error == ENETRESET) {
ndis_setstate_80211(sc);
error = 0;
}
} else
error = ether_ioctl(ifp, command, data);
sc->ndis_skip = 0;
break;
}
/*NDIS_UNLOCK(sc);*/
return(error);
}
static int
ndis_wi_ioctl_get(ifp, command, data)
struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct wi_req wreq;
struct ifreq *ifr;
struct ndis_softc *sc;
ndis_80211_bssid_list_ex *bl;
ndis_wlan_bssid_ex *wb;
struct wi_apinfo *api;
int error, i, j, len, maxaps;
sc = ifp->if_softc;
ifr = (struct ifreq *)data;
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return (error);
switch (wreq.wi_type) {
case WI_RID_READ_APS:
len = 0;
error = ndis_set_info(sc, OID_802_11_BSSID_LIST_SCAN,
NULL, &len);
if (error == 0)
tsleep(&error, PPAUSE|PCATCH, "ssidscan", hz * 2);
len = 0;
error = ndis_get_info(sc, OID_802_11_BSSID_LIST, NULL, &len);
if (error != ENOSPC)
break;
bl = malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
error = ndis_get_info(sc, OID_802_11_BSSID_LIST, bl, &len);
if (error) {
free(bl, M_DEVBUF);
break;
}
maxaps = (2 * wreq.wi_len - sizeof(int)) / sizeof(*api);
maxaps = MIN(maxaps, bl->nblx_items);
wreq.wi_len = (maxaps * sizeof(*api) + sizeof(int)) / 2;
*(int *)&wreq.wi_val = maxaps;
api = (struct wi_apinfo *)&((int *)&wreq.wi_val)[1];
wb = bl->nblx_bssid;
while (maxaps--) {
bzero(api, sizeof(*api));
bcopy(&wb->nwbx_macaddr, &api->bssid,
sizeof(api->bssid));
api->namelen = wb->nwbx_ssid.ns_ssidlen;
bcopy(&wb->nwbx_ssid.ns_ssid, &api->name, api->namelen);
if (wb->nwbx_privacy)
api->capinfo |= IEEE80211_CAPINFO_PRIVACY;
/* XXX Where can we get noise information? */
api->signal = wb->nwbx_rssi + 149; /* XXX */
api->quality = api->signal;
api->channel =
ieee80211_mhz2ieee(wb->nwbx_config.nc_dsconfig /
1000, 0);
/* In "auto" infrastructure mode, this is useless. */
if (wb->nwbx_netinfra == NDIS_80211_NET_INFRA_IBSS)
api->capinfo |= IEEE80211_CAPINFO_IBSS;
if (wb->nwbx_len > sizeof(ndis_wlan_bssid)) {
j = sizeof(ndis_80211_rates_ex);
/* handle other extended things */
} else
j = sizeof(ndis_80211_rates);
for (i = api->rate = 0; i < j; i++)
api->rate = MAX(api->rate, 5 *
(wb->nwbx_supportedrates[i] & 0x7f));
api++;
wb = (ndis_wlan_bssid_ex *)((char *)wb + wb->nwbx_len);
}
free(bl, M_DEVBUF);
error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
break;
default:
error = ENOTTY;
break;
}
return (error);
}
static int
ndis_wi_ioctl_set(ifp, command, data)
struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct wi_req wreq;
struct ifreq *ifr;
struct ndis_softc *sc;
uint32_t foo;
int error, len;
error = suser(curthread);
if (error)
return (error);
sc = ifp->if_softc;
ifr = (struct ifreq *)data;
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return (error);
switch (wreq.wi_type) {
case WI_RID_SCAN_APS:
case WI_RID_SCAN_REQ: /* arguments ignored */
len = sizeof(foo);
foo = 0;
error = ndis_set_info(sc, OID_802_11_BSSID_LIST_SCAN, &foo,
&len);
break;
default:
error = ENOTTY;
break;
}
return (error);
}
static void
ndis_watchdog(ifp)
struct ifnet *ifp;
{
struct ndis_softc *sc;
sc = ifp->if_softc;
NDIS_LOCK(sc);
ifp->if_oerrors++;
device_printf(sc->ndis_dev, "watchdog timeout\n");
NDIS_UNLOCK(sc);
ndis_reset_nic(sc);
ndis_sched(ndis_starttask, ifp, NDIS_TASKQUEUE);
return;
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
static void
ndis_stop(sc)
struct ndis_softc *sc;
{
struct ifnet *ifp;
ifp = &sc->arpcom.ac_if;
untimeout(ndis_tick, sc, sc->ndis_stat_ch);
ndis_halt_nic(sc);
NDIS_LOCK(sc);
ifp->if_timer = 0;
sc->ndis_link = 0;
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
NDIS_UNLOCK(sc);
return;
}
/*
* Stop all chip I/O so that the kernel's probe routines don't
* get confused by errant DMAs when rebooting.
*/
static void
ndis_shutdown(dev)
device_t dev;
{
struct ndis_softc *sc;
sc = device_get_softc(dev);
ndis_shutdown_nic(sc);
return;
}
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