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-rw-r--r--sys/dev/ic/awi.c2839
1 files changed, 0 insertions, 2839 deletions
diff --git a/sys/dev/ic/awi.c b/sys/dev/ic/awi.c
deleted file mode 100644
index c7c79274253..00000000000
--- a/sys/dev/ic/awi.c
+++ /dev/null
@@ -1,2839 +0,0 @@
-/* $OpenBSD: awi.c,v 1.24 2007/11/25 16:40:04 jmc Exp $ */
-/* $NetBSD: awi.c,v 1.26 2000/07/21 04:48:55 onoe Exp $ */
-
-/*-
- * Copyright (c) 1999 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Bill Sommerfeld
- *
- * 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.
- */
-/*
- * Driver for AMD 802.11 firmware.
- * Uses am79c930 chip driver to talk to firmware running on the am79c930.
- *
- * More-or-less a generic ethernet-like if driver, with 802.11 gorp added.
- */
-
-/*
- * todo:
- * - flush tx queue on resynch.
- * - clear oactive on "down".
- * - rewrite copy-into-mbuf code
- * - mgmt state machine gets stuck retransmitting assoc requests.
- * - multicast filter.
- * - fix device reset so it's more likely to work
- * - show status goo through ifmedia.
- *
- * more todo:
- * - deal with more 802.11 frames.
- * - send reassoc request
- * - deal with reassoc response
- * - send/deal with disassociation
- * - deal with "full" access points (no room for me).
- * - power save mode
- *
- * later:
- * - SSID preferences
- * - need ioctls for poking at the MIBs
- * - implement ad-hoc mode (including bss creation).
- * - decide when to do "ad hoc" vs. infrastructure mode (IFF_LINK flags?)
- * (focus on inf. mode since that will be needed for ietf)
- * - deal with DH vs. FH versions of the card
- * - deal with faster cards (2mb/s)
- * - ?WEP goo (mmm, rc4) (it looks not particularly useful).
- * - ifmedia revision.
- * - common 802.11 mibish things.
- * - common 802.11 media layer.
- */
-
-/*
- * Driver for AMD 802.11 PCnetMobile firmware.
- * Uses am79c930 chip driver to talk to firmware running on the am79c930.
- *
- * The initial version of the driver was written by
- * Bill Sommerfeld <sommerfeld@netbsd.org>.
- * Then the driver module completely rewritten to support cards with DS phy
- * and to support adhoc mode by Atsushi Onoe <onoe@netbsd.org>
- */
-
-#if defined(__FreeBSD__) && __FreeBSD__ >= 4
-#define NBPFILTER 1
-#elif defined(__FreeBSD__) && __FreeBSD__ >= 3
-#include "bpf.h"
-#define NBPFILTER NBPF
-#else
-#include "bpfilter.h"
-#endif
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/mbuf.h>
-#include <sys/malloc.h>
-#include <sys/proc.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/errno.h>
-#include <sys/syslog.h>
-#if defined(__FreeBSD__) && __FreeBSD__ >= 4
-#include <sys/bus.h>
-#else
-#include <sys/device.h>
-#endif
-
-#include <net/if.h>
-#include <net/if_dl.h>
-#ifndef __OpenBSD__
-#ifdef __FreeBSD__
-#include <net/ethernet.h>
-#else
-#include <net/if_ether.h>
-#endif
-#endif
-#include <net/if_media.h>
-#include <net/if_llc.h>
-
-#ifdef INET
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/in_var.h>
-#include <netinet/ip.h>
-#ifdef __NetBSD__
-#include <netinet/if_inarp.h>
-#else
-#include <netinet/if_ether.h>
-#endif
-#endif
-
-#include <net80211/ieee80211.h>
-#include <net80211/ieee80211_ioctl.h>
-
-#if NBPFILTER > 0
-#include <net/bpf.h>
-#endif
-
-#include <machine/cpu.h>
-#include <machine/bus.h>
-#ifdef __NetBSD__
-#include <machine/intr.h>
-#endif
-#ifdef __FreeBSD__
-#include <machine/clock.h>
-#endif
-
-#if defined(__NetBSD__) || defined(__OpenBSD__)
-#include <dev/ic/am79c930reg.h>
-#include <dev/ic/am79c930var.h>
-#include <dev/ic/awireg.h>
-#include <dev/ic/awivar.h>
-#endif
-#ifdef __FreeBSD__
-#include <dev/awi/am79c930reg.h>
-#include <dev/awi/am79c930var.h>
-#include <dev/awi/awireg.h>
-#include <dev/awi/awivar.h>
-#endif
-
-static int awi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
-#ifdef IFM_IEEE80211
-static int awi_media_rate2opt(struct awi_softc *sc, int rate);
-static int awi_media_opt2rate(struct awi_softc *sc, int opt);
-static int awi_media_change(struct ifnet *ifp);
-static void awi_media_status(struct ifnet *ifp, struct ifmediareq *imr);
-#endif
-static void awi_watchdog(struct ifnet *ifp);
-static void awi_start(struct ifnet *ifp);
-static void awi_txint(struct awi_softc *sc);
-static struct mbuf * awi_fix_txhdr(struct awi_softc *sc, struct mbuf *m0);
-static struct mbuf * awi_fix_rxhdr(struct awi_softc *sc, struct mbuf *m0);
-static void awi_input(struct awi_softc *sc, struct mbuf *m, u_int32_t rxts, u_int8_t rssi);
-static void awi_rxint(struct awi_softc *sc);
-static struct mbuf * awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len);
-static int awi_init_hw(struct awi_softc *sc);
-static int awi_init_mibs(struct awi_softc *sc);
-static int awi_init_txrx(struct awi_softc *sc);
-static void awi_stop_txrx(struct awi_softc *sc);
-static int awi_start_scan(struct awi_softc *sc);
-static int awi_next_scan(struct awi_softc *sc);
-static void awi_stop_scan(struct awi_softc *sc);
-static void awi_recv_beacon(struct awi_softc *sc, struct mbuf *m0, u_int32_t rxts, u_int8_t rssi);
-static int awi_set_ss(struct awi_softc *sc);
-static void awi_try_sync(struct awi_softc *sc);
-static void awi_sync_done(struct awi_softc *sc);
-static void awi_send_deauth(struct awi_softc *sc);
-static void awi_send_auth(struct awi_softc *sc, int seq);
-static void awi_recv_auth(struct awi_softc *sc, struct mbuf *m0);
-static void awi_send_asreq(struct awi_softc *sc, int reassoc);
-static void awi_recv_asresp(struct awi_softc *sc, struct mbuf *m0);
-static int awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib);
-static int awi_cmd_scan(struct awi_softc *sc);
-static int awi_cmd(struct awi_softc *sc, u_int8_t cmd);
-static void awi_cmd_done(struct awi_softc *sc);
-static int awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t*ntxdp);
-static int awi_lock(struct awi_softc *sc);
-static void awi_unlock(struct awi_softc *sc);
-static int awi_intr_lock(struct awi_softc *sc);
-static void awi_intr_unlock(struct awi_softc *sc);
-static int awi_cmd_wait(struct awi_softc *sc);
-static void awi_print_essid(u_int8_t *essid);
-
-#ifdef AWI_DEBUG
-static void awi_dump_pkt(struct awi_softc *sc, struct mbuf *m, int rssi);
-int awi_verbose = 0;
-int awi_dump = 0;
-#define AWI_DUMP_MASK(fc0) (1 << (((fc0) & IEEE80211_FC0_SUBTYPE_MASK) >> 4))
-int awi_dump_mask = AWI_DUMP_MASK(IEEE80211_FC0_SUBTYPE_BEACON);
-int awi_dump_hdr = 0;
-int awi_dump_len = 28;
-#endif
-
-#if NBPFILTER > 0
-#define AWI_BPF_NORM 0
-#define AWI_BPF_RAW 1
-#ifdef __FreeBSD__
-#define AWI_BPF_MTAP(sc, m, raw, dir) do { \
- if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \
- bpf_mtap((sc)->sc_ifp, (m)); \
-} while (0);
-#else
-#define AWI_BPF_MTAP(sc, m, raw, dir) do { \
- if ((sc)->sc_ifp->if_bpf && (sc)->sc_rawbpf == (raw)) \
- bpf_mtap((sc)->sc_ifp->if_bpf, (m), dir); \
-} while (0);
-#endif
-#else
-#define AWI_BPF_MTAP(sc, m, raw, dir)
-#endif
-
-#ifndef llc_snap
-#define llc_snap llc_un.type_snap
-#endif
-
-#ifdef __OpenBSD__
-struct cfdriver awi_cd = {
- NULL, "awi", DV_IFNET
-};
-#endif
-
-#ifdef __FreeBSD__
-#if __FreeBSD__ >= 4
-devclass_t awi_devclass;
-#endif
-
-/* NetBSD compatible functions */
-static char * ether_sprintf(u_int8_t *);
-
-static char *
-ether_sprintf(enaddr)
- u_int8_t *enaddr;
-{
- static char strbuf[18];
-
- snprintf(strbuf, sizeof strbuf, "%6D", enaddr, ":");
- return strbuf;
-}
-#endif
-
-int
-awi_attach(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- int s;
- int error;
-#ifdef IFM_IEEE80211
- int i;
- u_int8_t *phy_rates;
- int mword;
- struct ifmediareq imr;
-#endif
-
- s = splnet();
- /*
- * Even if we can sleep in initialization state,
- * all other processes (e.g. ifconfig) have to wait for
- * completion of attaching interface.
- */
- sc->sc_busy = 1;
- sc->sc_status = AWI_ST_INIT;
- TAILQ_INIT(&sc->sc_scan);
- error = awi_init_hw(sc);
- if (error) {
- sc->sc_invalid = 1;
- splx(s);
- return error;
- }
- error = awi_init_mibs(sc);
- splx(s);
- if (error) {
- sc->sc_invalid = 1;
- return error;
- }
-
- ifp->if_softc = sc;
- ifp->if_start = awi_start;
- ifp->if_ioctl = awi_ioctl;
- ifp->if_watchdog = awi_watchdog;
- ifp->if_hdrlen = sizeof(struct ieee80211_frame) +
- sizeof(struct ether_header);
- ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
-#ifdef IFF_NOTRAILERS
- ifp->if_flags |= IFF_NOTRAILERS;
-#endif
-#if defined(__NetBSD__) || defined(__OpenBSD__)
- memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
-#endif
-#ifdef __FreeBSD__
- ifp->if_output = ether_output;
- IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
- memcpy(sc->sc_ec.ac_enaddr, sc->sc_mib_addr.aMAC_Address,
- ETHER_ADDR_LEN);
-#endif
- IFQ_SET_READY(&ifp->if_snd);
-
- printf("%s: IEEE802.11 %s %dMbps (firmware %s)\n",
- sc->sc_dev.dv_xname,
- sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH ? "FH" : "DS",
- sc->sc_tx_rate / 10, sc->sc_banner);
- printf("%s: address %s\n",
- sc->sc_dev.dv_xname, ether_sprintf(sc->sc_mib_addr.aMAC_Address));
- if_attach(ifp);
-#ifdef __OpenBSD__
- ether_ifattach(ifp);
-#elif defined(__FreeBSD__)
- ether_ifattach(ifp);
-#if NBPFILTER > 0
- bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
-#endif
-#elif defined(__NetBSD__)
- ether_ifattach(ifp, sc->sc_mib_addr.aMAC_Address);
-#endif
-
-#ifdef IFM_IEEE80211
- ifmedia_init(&sc->sc_media, 0, awi_media_change, awi_media_status);
- phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
- for (i = 0; i < phy_rates[1]; i++) {
- mword = awi_media_rate2opt(sc, AWI_80211_RATE(phy_rates[2 + i]));
- if (mword == 0)
- continue;
- mword |= IFM_IEEE80211;
- ifmedia_add(&sc->sc_media, mword, 0, NULL);
- ifmedia_add(&sc->sc_media,
- mword | IFM_IEEE80211_ADHOC, 0, NULL);
- if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH)
- ifmedia_add(&sc->sc_media,
- mword | IFM_IEEE80211_ADHOC | IFM_FLAG0, 0, NULL);
- }
- awi_media_status(ifp, &imr);
- ifmedia_set(&sc->sc_media, imr.ifm_active);
-#endif
-
- /* ready to accept ioctl */
- awi_unlock(sc);
-
- /* Attach is successful. */
- sc->sc_attached = 1;
- return 0;
-}
-
-#ifndef __FreeBSD__
-int
-awi_detach(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- int s;
-
- /* Succeed if there is no work to do. */
- if (!sc->sc_attached)
- return (0);
-
- s = splnet();
- sc->sc_invalid = 1;
- awi_stop(sc);
- while (sc->sc_sleep_cnt > 0) {
- wakeup(sc);
- (void)tsleep(sc, PWAIT, "awidet", 1);
- }
- if (sc->sc_wep_ctx != NULL)
- free(sc->sc_wep_ctx, M_DEVBUF);
-#ifdef IFM_IEEE80211
- ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY);
-#endif
- ether_ifdetach(ifp);
- if_detach(ifp);
- if (sc->sc_enabled) {
- if (sc->sc_disable)
- (*sc->sc_disable)(sc);
- sc->sc_enabled = 0;
- }
- splx(s);
- return 0;
-}
-
-int
-awi_activate(self, act)
- struct device *self;
- enum devact act;
-{
- struct awi_softc *sc = (struct awi_softc *)self;
- int s, error = 0;
-
- s = splnet();
- switch (act) {
- case DVACT_ACTIVATE:
- break;
-
- case DVACT_DEACTIVATE:
- sc->sc_invalid = 1;
-#ifdef __NetBSD__
- if (sc->sc_ifp)
- if_deactivate(sc->sc_ifp);
-#endif
- break;
- }
- splx(s);
-
- return error;
-}
-
-void
-awi_power(sc, why)
- struct awi_softc *sc;
- int why;
-{
- int s;
- int ocansleep;
-
- if (!sc->sc_enabled)
- return;
-
- s = splnet();
- ocansleep = sc->sc_cansleep;
- sc->sc_cansleep = 0;
-#ifdef needtobefixed /*ONOE*/
- if (why == PWR_RESUME) {
- sc->sc_enabled = 0;
- awi_init(sc);
- (void)awi_intr(sc);
- } else {
- awi_stop(sc);
- if (sc->sc_disable)
- (*sc->sc_disable)(sc);
- }
-#endif
- sc->sc_cansleep = ocansleep;
- splx(s);
-}
-#endif /* __NetBSD__ */
-
-static int
-awi_ioctl(ifp, cmd, data)
- struct ifnet *ifp;
- u_long cmd;
- caddr_t data;
-{
- struct awi_softc *sc = ifp->if_softc;
- struct ifreq *ifr = (struct ifreq *)data;
- struct ifaddr *ifa = (struct ifaddr *)data;
- int s, error;
- struct ieee80211_nwid nwid;
- u_int8_t *p;
-
- s = splnet();
-
-#ifdef __OpenBSD__
- if ((error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data)) > 0) {
- splx(s);
- return (error);
- }
-#endif
-
- /* serialize ioctl */
- error = awi_lock(sc);
- if (error)
- goto cantlock;
- switch (cmd) {
- case SIOCSIFADDR:
- ifp->if_flags |= IFF_UP;
- switch (ifa->ifa_addr->sa_family) {
-#ifdef INET
- case AF_INET:
- arp_ifinit((void *)ifp, ifa);
- break;
-#endif
- }
- /* FALLTHROUGH */
- case SIOCSIFFLAGS:
- sc->sc_format_llc = !(ifp->if_flags & IFF_LINK0);
- if (!(ifp->if_flags & IFF_UP)) {
- if (sc->sc_enabled) {
- awi_stop(sc);
- if (sc->sc_disable)
- (*sc->sc_disable)(sc);
- sc->sc_enabled = 0;
- }
- break;
- }
- error = awi_init(sc);
- break;
-
- case SIOCADDMULTI:
- case SIOCDELMULTI:
-#ifdef __FreeBSD__
- error = ENETRESET; /*XXX*/
-#else
- error = (cmd == SIOCADDMULTI) ?
- ether_addmulti(ifr, &sc->sc_arpcom) :
- ether_delmulti(ifr, &sc->sc_arpcom);
-#endif
- /*
- * Do not rescan BSS. Rather, just reset multicast filter.
- */
- if (error == ENETRESET) {
- if (ifp->if_flags & IFF_RUNNING)
- error = awi_init(sc);
- else
- error = 0;
- }
- break;
- case SIOCSIFMTU:
- if (ifr->ifr_mtu > ETHERMTU)
- error = EINVAL;
- else
- ifp->if_mtu = ifr->ifr_mtu;
- break;
- case SIOCS80211NWID:
- if ((error = suser(curproc, 0)) != 0)
- break;
- error = copyin(ifr->ifr_data, &nwid, sizeof(nwid));
- if (error)
- break;
- if (nwid.i_len > IEEE80211_NWID_LEN) {
- error = EINVAL;
- break;
- }
- if (sc->sc_mib_mac.aDesired_ESS_ID[1] == nwid.i_len &&
- memcmp(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid,
- nwid.i_len) == 0)
- break;
- memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE);
- sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID;
- sc->sc_mib_mac.aDesired_ESS_ID[1] = nwid.i_len;
- memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], nwid.i_nwid,
- nwid.i_len);
- if (sc->sc_enabled) {
- awi_stop(sc);
- error = awi_init(sc);
- }
- break;
- case SIOCG80211NWID:
- if (ifp->if_flags & IFF_RUNNING)
- p = sc->sc_bss.essid;
- else
- p = sc->sc_mib_mac.aDesired_ESS_ID;
- error = copyout(p + 1, ifr->ifr_data, 1 + IEEE80211_NWID_LEN);
- break;
- case SIOCS80211NWKEY:
- if ((error = suser(curproc, 0)) != 0)
- break;
- error = awi_wep_setnwkey(sc, (struct ieee80211_nwkey *)data);
- break;
- case SIOCG80211NWKEY:
- error = awi_wep_getnwkey(sc, (struct ieee80211_nwkey *)data);
- break;
-#ifdef IFM_IEEE80211
- case SIOCSIFMEDIA:
- case SIOCGIFMEDIA:
- error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd);
- break;
-#endif
- default:
-#ifdef notyet
- error = awi_wicfg(ifp, cmd, data);
-#else
- error = EINVAL;
-#endif
- break;
- }
- awi_unlock(sc);
- cantlock:
- splx(s);
- return error;
-}
-
-#ifdef IFM_IEEE80211
-static int
-awi_media_rate2opt(sc, rate)
- struct awi_softc *sc;
- int rate;
-{
- int mword;
-
- mword = 0;
- switch (rate) {
- case 10:
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- mword = IFM_IEEE80211_FH1;
- else
- mword = IFM_IEEE80211_DS1;
- break;
- case 20:
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- mword = IFM_IEEE80211_FH2;
- else
- mword = IFM_IEEE80211_DS2;
- break;
- case 55:
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS)
- mword = IFM_IEEE80211_DS5;
- break;
- case 110:
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_DS)
- mword = IFM_IEEE80211_DS11;
- break;
- }
- return mword;
-}
-
-static int
-awi_media_opt2rate(sc, opt)
- struct awi_softc *sc;
- int opt;
-{
- int rate;
-
- rate = 0;
- switch (IFM_SUBTYPE(opt)) {
- case IFM_IEEE80211_FH1:
- case IFM_IEEE80211_FH2:
- if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_FH)
- return 0;
- break;
- case IFM_IEEE80211_DS1:
- case IFM_IEEE80211_DS2:
- case IFM_IEEE80211_DS5:
- case IFM_IEEE80211_DS11:
- if (sc->sc_mib_phy.IEEE_PHY_Type != AWI_PHY_TYPE_DS)
- return 0;
- break;
- }
-
- switch (IFM_SUBTYPE(opt)) {
- case IFM_IEEE80211_FH1:
- case IFM_IEEE80211_DS1:
- rate = 10;
- break;
- case IFM_IEEE80211_FH2:
- case IFM_IEEE80211_DS2:
- rate = 20;
- break;
- case IFM_IEEE80211_DS5:
- rate = 55;
- break;
- case IFM_IEEE80211_DS11:
- rate = 110;
- break;
- }
- return rate;
-}
-
-/*
- * Called from ifmedia_ioctl via awi_ioctl with lock obtained.
- */
-static int
-awi_media_change(ifp)
- struct ifnet *ifp;
-{
- struct awi_softc *sc = ifp->if_softc;
- struct ifmedia_entry *ime;
- u_int8_t *phy_rates;
- int i, rate, error;
-
- error = 0;
- ime = sc->sc_media.ifm_cur;
- rate = awi_media_opt2rate(sc, ime->ifm_media);
- if (rate == 0)
- return EINVAL;
- if (rate != sc->sc_tx_rate) {
- phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
- for (i = 0; i < phy_rates[1]; i++) {
- if (rate == AWI_80211_RATE(phy_rates[2 + i]))
- break;
- }
- if (i == phy_rates[1])
- return EINVAL;
- }
- if (ime->ifm_media & IFM_IEEE80211_ADHOC) {
- sc->sc_mib_local.Network_Mode = 0;
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- sc->sc_no_bssid = 0;
- else
- sc->sc_no_bssid = (ime->ifm_media & IFM_FLAG0) ? 1 : 0;
- } else {
- sc->sc_mib_local.Network_Mode = 1;
- }
- if (sc->sc_enabled) {
- awi_stop(sc);
- error = awi_init(sc);
- }
- return error;
-}
-
-static void
-awi_media_status(ifp, imr)
- struct ifnet *ifp;
- struct ifmediareq *imr;
-{
- struct awi_softc *sc = ifp->if_softc;
-
- imr->ifm_status = IFM_AVALID;
- if (ifp->if_flags & IFF_RUNNING)
- imr->ifm_status |= IFM_ACTIVE;
- imr->ifm_active = IFM_IEEE80211;
- imr->ifm_active |= awi_media_rate2opt(sc, sc->sc_tx_rate);
- if (sc->sc_mib_local.Network_Mode == 0) {
- imr->ifm_active |= IFM_IEEE80211_ADHOC;
- if (sc->sc_no_bssid)
- imr->ifm_active |= IFM_FLAG0;
- }
-}
-#endif /* IFM_IEEE80211 */
-
-int
-awi_intr(arg)
- void *arg;
-{
- struct awi_softc *sc = arg;
- u_int16_t status;
- int error, handled = 0, ocansleep;
-
- if (!sc->sc_enabled || !sc->sc_enab_intr || sc->sc_invalid)
- return 0;
-
- am79c930_gcr_setbits(&sc->sc_chip,
- AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT);
- awi_write_1(sc, AWI_DIS_PWRDN, 1);
- ocansleep = sc->sc_cansleep;
- sc->sc_cansleep = 0;
-
- for (;;) {
- error = awi_intr_lock(sc);
- if (error)
- break;
- status = awi_read_1(sc, AWI_INTSTAT);
- awi_write_1(sc, AWI_INTSTAT, 0);
- awi_write_1(sc, AWI_INTSTAT, 0);
- status |= awi_read_1(sc, AWI_INTSTAT2) << 8;
- awi_write_1(sc, AWI_INTSTAT2, 0);
- DELAY(10);
- awi_intr_unlock(sc);
- if (!sc->sc_cmd_inprog)
- status &= ~AWI_INT_CMD; /* make sure */
- if (status == 0)
- break;
- handled = 1;
- if (status & AWI_INT_RX)
- awi_rxint(sc);
- if (status & AWI_INT_TX)
- awi_txint(sc);
- if (status & AWI_INT_CMD)
- awi_cmd_done(sc);
- if (status & AWI_INT_SCAN_CMPLT) {
- if (sc->sc_status == AWI_ST_SCAN &&
- sc->sc_mgt_timer > 0)
- (void)awi_next_scan(sc);
- }
- }
- sc->sc_cansleep = ocansleep;
- am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN);
- awi_write_1(sc, AWI_DIS_PWRDN, 0);
- return handled;
-}
-
-int
-awi_init(sc)
- struct awi_softc *sc;
-{
- int error, ostatus;
- int n;
- struct ifnet *ifp = sc->sc_ifp;
-#ifdef __FreeBSD__
- struct ifmultiaddr *ifma;
-#else
- struct ether_multi *enm;
- struct ether_multistep step;
-#endif
-
- /* reinitialize muticast filter */
- n = 0;
- ifp->if_flags |= IFF_ALLMULTI;
- sc->sc_mib_local.Accept_All_Multicast_Dis = 0;
- if (ifp->if_flags & IFF_PROMISC) {
- sc->sc_mib_mac.aPromiscuous_Enable = 1;
- goto set_mib;
- }
- sc->sc_mib_mac.aPromiscuous_Enable = 0;
-#ifdef __FreeBSD__
- if (ifp->if_amcount != 0)
- goto set_mib;
- for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL;
- ifma = LIST_NEXT(ifma, ifma_link)) {
- if (ifma->ifma_addr->sa_family != AF_LINK)
- continue;
- if (n == AWI_GROUP_ADDR_SIZE)
- goto set_mib;
- memcpy(sc->sc_mib_addr.aGroup_Addresses[n],
- LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
- ETHER_ADDR_LEN);
- n++;
- }
-#else
- ETHER_FIRST_MULTI(step, &sc->sc_arpcom, enm);
- while (enm != NULL) {
- if (n == AWI_GROUP_ADDR_SIZE ||
- memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)
- != 0)
- goto set_mib;
- memcpy(sc->sc_mib_addr.aGroup_Addresses[n], enm->enm_addrlo,
- ETHER_ADDR_LEN);
- n++;
- ETHER_NEXT_MULTI(step, enm);
- }
-#endif
- for (; n < AWI_GROUP_ADDR_SIZE; n++)
- memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, ETHER_ADDR_LEN);
- ifp->if_flags &= ~IFF_ALLMULTI;
- sc->sc_mib_local.Accept_All_Multicast_Dis = 1;
-
- set_mib:
-#ifdef notdef /* allow non-encrypted frame for receiving. */
- sc->sc_mib_mgt.Wep_Required = sc->sc_wep_algo != NULL ? 1 : 0;
-#endif
- if (!sc->sc_enabled) {
- sc->sc_enabled = 1;
- if (sc->sc_enable)
- (*sc->sc_enable)(sc);
- sc->sc_status = AWI_ST_INIT;
- error = awi_init_hw(sc);
- if (error)
- return error;
- }
- ostatus = sc->sc_status;
- sc->sc_status = AWI_ST_INIT;
- if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY)) != 0) {
- awi_stop(sc);
- return error;
- }
- if (ifp->if_flags & IFF_RUNNING)
- sc->sc_status = AWI_ST_RUNNING;
- else {
- if (ostatus == AWI_ST_INIT) {
- error = awi_init_txrx(sc);
- if (error)
- return error;
- }
- error = awi_start_scan(sc);
- }
- return error;
-}
-
-void
-awi_stop(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct awi_bss *bp;
- struct mbuf *m;
-
- sc->sc_status = AWI_ST_INIT;
- if (!sc->sc_invalid) {
- (void)awi_cmd_wait(sc);
- if (sc->sc_mib_local.Network_Mode &&
- sc->sc_status > AWI_ST_AUTH)
- awi_send_deauth(sc);
- awi_stop_txrx(sc);
- }
- ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE);
- ifp->if_timer = 0;
- sc->sc_tx_timer = sc->sc_rx_timer = sc->sc_mgt_timer = 0;
- for (;;) {
- IF_DEQUEUE(&sc->sc_mgtq, m);
- if (m == NULL)
- break;
- m_freem(m);
- }
- IFQ_PURGE(&ifp->if_snd);
- while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) {
- TAILQ_REMOVE(&sc->sc_scan, bp, list);
- free(bp, M_DEVBUF);
- }
-}
-
-static void
-awi_watchdog(ifp)
- struct ifnet *ifp;
-{
- struct awi_softc *sc = ifp->if_softc;
- int ocansleep;
-
- if (sc->sc_invalid) {
- ifp->if_timer = 0;
- return;
- }
-
- ocansleep = sc->sc_cansleep;
- sc->sc_cansleep = 0;
- if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
- printf("%s: transmit timeout\n", sc->sc_dev.dv_xname);
- awi_txint(sc);
- }
- if (sc->sc_rx_timer && --sc->sc_rx_timer == 0) {
- if (ifp->if_flags & IFF_DEBUG) {
- printf("%s: no recent beacons from %s; rescanning\n",
- sc->sc_dev.dv_xname,
- ether_sprintf(sc->sc_bss.bssid));
- }
- ifp->if_flags &= ~IFF_RUNNING;
- awi_start_scan(sc);
- }
- if (sc->sc_mgt_timer && --sc->sc_mgt_timer == 0) {
- switch (sc->sc_status) {
- case AWI_ST_SCAN:
- awi_stop_scan(sc);
- break;
- case AWI_ST_AUTH:
- case AWI_ST_ASSOC:
- /* restart scan */
- awi_start_scan(sc);
- break;
- default:
- break;
- }
- }
-
- if (sc->sc_tx_timer == 0 && sc->sc_rx_timer == 0 &&
- sc->sc_mgt_timer == 0)
- ifp->if_timer = 0;
- else
- ifp->if_timer = 1;
- sc->sc_cansleep = ocansleep;
-}
-
-static void
-awi_start(ifp)
- struct ifnet *ifp;
-{
- struct awi_softc *sc = ifp->if_softc;
- struct mbuf *m0, *m;
- u_int32_t txd, frame, ntxd;
- u_int8_t rate;
- int len, sent = 0;
-
- for (;;) {
- txd = sc->sc_txnext;
- IF_DEQUEUE(&sc->sc_mgtq, m0);
- if (m0 != NULL) {
- if (awi_next_txd(sc, m0->m_pkthdr.len, &frame, &ntxd)) {
- IF_PREPEND(&sc->sc_mgtq, m0);
- ifp->if_flags |= IFF_OACTIVE;
- break;
- }
- } else {
- if (!(ifp->if_flags & IFF_RUNNING))
- break;
- IFQ_POLL(&ifp->if_snd, m0);
- if (m0 == NULL)
- break;
- len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame);
- if (sc->sc_format_llc)
- len += sizeof(struct llc) -
- sizeof(struct ether_header);
- if (sc->sc_wep_algo != NULL)
- len += IEEE80211_WEP_IVLEN +
- IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN;
- if (awi_next_txd(sc, len, &frame, &ntxd)) {
- ifp->if_flags |= IFF_OACTIVE;
- break;
- }
- IFQ_DEQUEUE(&ifp->if_snd, m0);
- AWI_BPF_MTAP(sc, m0, AWI_BPF_NORM, BPF_DIRECTION_OUT);
- m0 = awi_fix_txhdr(sc, m0);
- if (sc->sc_wep_algo != NULL && m0 != NULL)
- m0 = awi_wep_encrypt(sc, m0, 1);
- if (m0 == NULL) {
- ifp->if_oerrors++;
- continue;
- }
- ifp->if_opackets++;
- }
-#ifdef AWI_DEBUG
- if (awi_dump)
- awi_dump_pkt(sc, m0, -1);
-#endif
- AWI_BPF_MTAP(sc, m0, AWI_BPF_RAW, BPF_DIRECTION_OUT);
- len = 0;
- for (m = m0; m != NULL; m = m->m_next) {
- awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *),
- m->m_len);
- len += m->m_len;
- }
- m_freem(m0);
- rate = sc->sc_tx_rate; /*XXX*/
- awi_write_1(sc, ntxd + AWI_TXD_STATE, 0);
- awi_write_4(sc, txd + AWI_TXD_START, frame);
- awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd);
- awi_write_4(sc, txd + AWI_TXD_LENGTH, len);
- awi_write_1(sc, txd + AWI_TXD_RATE, rate);
- awi_write_4(sc, txd + AWI_TXD_NDA, 0);
- awi_write_4(sc, txd + AWI_TXD_NRA, 0);
- awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN);
- sc->sc_txnext = ntxd;
- sent++;
- }
- if (sent) {
- if (sc->sc_tx_timer == 0)
- sc->sc_tx_timer = 5;
- ifp->if_timer = 1;
-#ifdef AWI_DEBUG
- if (awi_verbose)
- printf("awi_start: sent %d txdone %d txnext %d txbase %d txend %d\n", sent, sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend);
-#endif
- }
-}
-
-static void
-awi_txint(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- u_int8_t flags;
-
- while (sc->sc_txdone != sc->sc_txnext) {
- flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE);
- if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE))
- break;
- if (flags & AWI_TXD_ST_ERROR)
- ifp->if_oerrors++;
- sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) &
- 0x7fff;
- }
- sc->sc_tx_timer = 0;
- ifp->if_flags &= ~IFF_OACTIVE;
-#ifdef AWI_DEBUG
- if (awi_verbose)
- printf("awi_txint: txdone %d txnext %d txbase %d txend %d\n",
- sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend);
-#endif
- awi_start(ifp);
-}
-
-static struct mbuf *
-awi_fix_txhdr(sc, m0)
- struct awi_softc *sc;
- struct mbuf *m0;
-{
- struct ether_header eh;
- struct ieee80211_frame *wh;
- struct llc *llc;
-
- if (m0->m_len < sizeof(eh)) {
- m0 = m_pullup(m0, sizeof(eh));
- if (m0 == NULL)
- return NULL;
- }
- memcpy(&eh, mtod(m0, caddr_t), sizeof(eh));
- if (sc->sc_format_llc) {
- m_adj(m0, sizeof(struct ether_header) - sizeof(struct llc));
- llc = mtod(m0, struct llc *);
- llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP;
- llc->llc_control = LLC_UI;
- llc->llc_snap.org_code[0] = llc->llc_snap.org_code[1] =
- llc->llc_snap.org_code[2] = 0;
- llc->llc_snap.ether_type = eh.ether_type;
- }
- M_PREPEND(m0, sizeof(struct ieee80211_frame), M_DONTWAIT);
- if (m0 == NULL)
- return NULL;
- wh = mtod(m0, struct ieee80211_frame *);
-
- wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA;
- LE_WRITE_2(wh->i_dur, 0);
- LE_WRITE_2(wh->i_seq, 0);
- if (sc->sc_mib_local.Network_Mode) {
- wh->i_fc[1] = IEEE80211_FC1_DIR_TODS;
- memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN);
- memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN);
- memcpy(wh->i_addr3, eh.ether_dhost, ETHER_ADDR_LEN);
- } else {
- wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
- memcpy(wh->i_addr1, eh.ether_dhost, ETHER_ADDR_LEN);
- memcpy(wh->i_addr2, eh.ether_shost, ETHER_ADDR_LEN);
- memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN);
- }
- return m0;
-}
-
-static struct mbuf *
-awi_fix_rxhdr(sc, m0)
- struct awi_softc *sc;
- struct mbuf *m0;
-{
- struct ieee80211_frame wh;
- struct ether_header *eh;
- struct llc *llc;
-
- if (m0->m_len < sizeof(wh)) {
- m_freem(m0);
- return NULL;
- }
- llc = (struct llc *)(mtod(m0, caddr_t) + sizeof(wh));
- if (llc->llc_dsap == LLC_SNAP_LSAP &&
- llc->llc_ssap == LLC_SNAP_LSAP &&
- llc->llc_control == LLC_UI &&
- llc->llc_snap.org_code[0] == 0 &&
- llc->llc_snap.org_code[1] == 0 &&
- llc->llc_snap.org_code[2] == 0) {
- memcpy(&wh, mtod(m0, caddr_t), sizeof(wh));
- m_adj(m0, sizeof(wh) + sizeof(*llc) - sizeof(*eh));
- eh = mtod(m0, struct ether_header *);
- switch (wh.i_fc[1] & IEEE80211_FC1_DIR_MASK) {
- case IEEE80211_FC1_DIR_NODS:
- memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN);
- memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN);
- break;
- case IEEE80211_FC1_DIR_TODS:
- memcpy(eh->ether_dhost, wh.i_addr3, ETHER_ADDR_LEN);
- memcpy(eh->ether_shost, wh.i_addr2, ETHER_ADDR_LEN);
- break;
- case IEEE80211_FC1_DIR_FROMDS:
- memcpy(eh->ether_dhost, wh.i_addr1, ETHER_ADDR_LEN);
- memcpy(eh->ether_shost, wh.i_addr3, ETHER_ADDR_LEN);
- break;
- case IEEE80211_FC1_DIR_DSTODS:
- m_freem(m0);
- return NULL;
- }
- } else {
- /* assuming ethernet encapsulation, just strip 802.11 header */
- m_adj(m0, sizeof(wh));
- }
- if (ALIGN(mtod(m0, caddr_t) + sizeof(struct ether_header)) !=
- (u_int)(mtod(m0, caddr_t) + sizeof(struct ether_header))) {
- /* XXX: we lose to estimate the type of encapsulation */
- struct mbuf *n, *n0, **np;
- caddr_t newdata;
- int off, oldmlen;
-
- n0 = NULL;
- np = &n0;
- off = 0;
- oldmlen = m0->m_pkthdr.len;
- while (oldmlen > off) {
- if (n0 == NULL) {
- MGETHDR(n, M_DONTWAIT, MT_DATA);
- if (n == NULL) {
- m_freem(m0);
- return NULL;
- }
- M_MOVE_PKTHDR(n, m0);
- n->m_len = MHLEN;
- } else {
- MGET(n, M_DONTWAIT, MT_DATA);
- if (n == NULL) {
- m_freem(m0);
- m_freem(n0);
- return NULL;
- }
- n->m_len = MLEN;
- }
- if (oldmlen - off >= MINCLSIZE) {
- MCLGET(n, M_DONTWAIT);
- if (n->m_flags & M_EXT)
- n->m_len = n->m_ext.ext_size;
- }
- if (n0 == NULL) {
- newdata = (caddr_t)
- ALIGN(n->m_data
- + sizeof(struct ether_header))
- - sizeof(struct ether_header);
- n->m_len -= newdata - n->m_data;
- n->m_data = newdata;
- }
- if (n->m_len > oldmlen - off)
- n->m_len = oldmlen - off;
- m_copydata(m0, off, n->m_len, mtod(n, caddr_t));
- off += n->m_len;
- *np = n;
- np = &n->m_next;
- }
- m_freem(m0);
- m0 = n0;
- }
- return m0;
-}
-
-static void
-awi_input(sc, m, rxts, rssi)
- struct awi_softc *sc;
- struct mbuf *m;
- u_int32_t rxts;
- u_int8_t rssi;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct ieee80211_frame *wh;
-
- /* trim CRC here for WEP can find its own CRC at the end of packet. */
- m_adj(m, -ETHER_CRC_LEN);
- AWI_BPF_MTAP(sc, m, AWI_BPF_RAW, BPF_DIRECTION_IN);
- wh = mtod(m, struct ieee80211_frame *);
- if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) !=
- IEEE80211_FC0_VERSION_0) {
- printf("%s; receive packet with wrong version: %x\n",
- sc->sc_dev.dv_xname, wh->i_fc[0]);
- m_freem(m);
- ifp->if_ierrors++;
- return;
- }
- if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
- m = awi_wep_encrypt(sc, m, 0);
- if (m == NULL) {
- ifp->if_ierrors++;
- return;
- }
- wh = mtod(m, struct ieee80211_frame *);
- }
-#ifdef AWI_DEBUG
- if (awi_dump)
- awi_dump_pkt(sc, m, rssi);
-#endif
-
- if ((sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid) &&
- sc->sc_status == AWI_ST_RUNNING) {
- if (memcmp(wh->i_addr2, sc->sc_bss.bssid, ETHER_ADDR_LEN) == 0) {
- sc->sc_rx_timer = 10;
- sc->sc_bss.rssi = rssi;
- }
- }
- switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
- case IEEE80211_FC0_TYPE_DATA:
- if (sc->sc_mib_local.Network_Mode) {
- if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) !=
- IEEE80211_FC1_DIR_FROMDS) {
- m_freem(m);
- return;
- }
- } else {
- if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) !=
- IEEE80211_FC1_DIR_NODS) {
- m_freem(m);
- return;
- }
- }
- m = awi_fix_rxhdr(sc, m);
- if (m == NULL) {
- ifp->if_ierrors++;
- break;
- }
- ifp->if_ipackets++;
-#if !(defined(__FreeBSD__) && __FreeBSD__ >= 4)
- AWI_BPF_MTAP(sc, m, AWI_BPF_NORM, BPF_DIRECTION_IN);
-#endif
-#ifdef __NetBSD__
- (*ifp->if_input)(ifp, m);
-#else
- ether_input_mbuf(ifp, m);
-#endif
- break;
- case IEEE80211_FC0_TYPE_MGT:
- if ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) !=
- IEEE80211_FC1_DIR_NODS) {
- m_freem(m);
- return;
- }
- switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
- case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
- case IEEE80211_FC0_SUBTYPE_BEACON:
- awi_recv_beacon(sc, m, rxts, rssi);
- break;
- case IEEE80211_FC0_SUBTYPE_AUTH:
- awi_recv_auth(sc, m);
- break;
- case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
- case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
- awi_recv_asresp(sc, m);
- break;
- case IEEE80211_FC0_SUBTYPE_DEAUTH:
- if (sc->sc_mib_local.Network_Mode)
- awi_send_auth(sc, 1);
- break;
- case IEEE80211_FC0_SUBTYPE_DISASSOC:
- if (sc->sc_mib_local.Network_Mode)
- awi_send_asreq(sc, 1);
- break;
- }
- m_freem(m);
- break;
- case IEEE80211_FC0_TYPE_CTL:
- default:
- /* should not come here */
- m_freem(m);
- break;
- }
-}
-
-static void
-awi_rxint(sc)
- struct awi_softc *sc;
-{
- u_int8_t state, rate, rssi;
- u_int16_t len;
- u_int32_t frame, next, rxts, rxoff;
- struct mbuf *m;
-
- rxoff = sc->sc_rxdoff;
- for (;;) {
- state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE);
- if (state & AWI_RXD_ST_OWN)
- break;
- if (!(state & AWI_RXD_ST_CONSUMED)) {
- if (state & AWI_RXD_ST_RXERROR)
- sc->sc_ifp->if_ierrors++;
- else {
- len = awi_read_2(sc, rxoff + AWI_RXD_LEN);
- rate = awi_read_1(sc, rxoff + AWI_RXD_RATE);
- rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI);
- frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & 0x7fff;
- rxts = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME);
- m = awi_devget(sc, frame, len);
- if (state & AWI_RXD_ST_LF)
- awi_input(sc, m, rxts, rssi);
- else
- sc->sc_rxpend = m;
- }
- state |= AWI_RXD_ST_CONSUMED;
- awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state);
- }
- next = awi_read_4(sc, rxoff + AWI_RXD_NEXT);
- if (next & AWI_RXD_NEXT_LAST)
- break;
- /* make sure the next pointer is correct */
- if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT))
- break;
- state |= AWI_RXD_ST_OWN;
- awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state);
- rxoff = next & 0x7fff;
- }
- sc->sc_rxdoff = rxoff;
-}
-
-static struct mbuf *
-awi_devget(sc, off, len)
- struct awi_softc *sc;
- u_int32_t off;
- u_int16_t len;
-{
- struct mbuf *m;
- struct mbuf *top, **mp;
- u_int tlen;
-
- top = sc->sc_rxpend;
- mp = &top;
- if (top != NULL) {
- sc->sc_rxpend = NULL;
- top->m_pkthdr.len += len;
- m = top;
- while (*mp != NULL) {
- m = *mp;
- mp = &m->m_next;
- }
- if (m->m_flags & M_EXT)
- tlen = m->m_ext.ext_size;
- else if (m->m_flags & M_PKTHDR)
- tlen = MHLEN;
- else
- tlen = MLEN;
- tlen -= m->m_len;
- if (tlen > len)
- tlen = len;
- awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen);
- off += tlen;
- len -= tlen;
- }
-
- while (len > 0) {
- if (top == NULL) {
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == NULL)
- return NULL;
- m->m_pkthdr.rcvif = sc->sc_ifp;
- m->m_pkthdr.len = len;
- m->m_len = MHLEN;
- } else {
- MGET(m, M_DONTWAIT, MT_DATA);
- if (m == NULL) {
- m_freem(top);
- return NULL;
- }
- m->m_len = MLEN;
- }
- if (len >= MINCLSIZE) {
- MCLGET(m, M_DONTWAIT);
- if (m->m_flags & M_EXT)
- m->m_len = m->m_ext.ext_size;
- }
- if (top == NULL) {
- int hdrlen = sizeof(struct ieee80211_frame) +
- (sc->sc_format_llc ? sizeof(struct llc) :
- sizeof(struct ether_header));
- caddr_t newdata = (caddr_t)
- ALIGN(m->m_data + hdrlen) - hdrlen;
- m->m_len -= newdata - m->m_data;
- m->m_data = newdata;
- }
- if (m->m_len > len)
- m->m_len = len;
- awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len);
- off += m->m_len;
- len -= m->m_len;
- *mp = m;
- mp = &m->m_next;
- }
- return top;
-}
-
-/*
- * Initialize hardware and start firmware to accept commands.
- * Called everytime after power on firmware.
- */
-
-static int
-awi_init_hw(sc)
- struct awi_softc *sc;
-{
- u_int8_t status;
- u_int16_t intmask;
- int i, error;
-
- sc->sc_enab_intr = 0;
- sc->sc_invalid = 0; /* XXX: really? */
- awi_drvstate(sc, AWI_DRV_RESET);
-
- /* reset firmware */
- am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET);
- DELAY(100);
- awi_write_1(sc, AWI_SELFTEST, 0);
- awi_write_1(sc, AWI_CMD, 0);
- awi_write_1(sc, AWI_BANNER, 0);
- am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET);
- DELAY(100);
-
- /* wait for selftest completion */
- for (i = 0; ; i++) {
- if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) {
- printf("%s: failed to complete selftest (timeout)\n",
- sc->sc_dev.dv_xname);
- return ENXIO;
- }
- status = awi_read_1(sc, AWI_SELFTEST);
- if ((status & 0xf0) == 0xf0)
- break;
- if (sc->sc_cansleep) {
- sc->sc_sleep_cnt++;
- (void)tsleep(sc, PWAIT, "awitst", 1);
- sc->sc_sleep_cnt--;
- } else {
- DELAY(1000*1000/hz);
- }
- }
- if (status != AWI_SELFTEST_PASSED) {
- printf("%s: failed to complete selftest (code %x)\n",
- sc->sc_dev.dv_xname, status);
- return ENXIO;
- }
-
- /* check banner to confirm firmware write it */
- awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN);
- if (memcmp(sc->sc_banner, "PCnetMobile:", 12) != 0) {
- printf("%s: failed to complete selftest (bad banner)\n",
- sc->sc_dev.dv_xname);
- for (i = 0; i < AWI_BANNER_LEN; i++)
- printf("%s%02x", i ? ":" : "\t", sc->sc_banner[i]);
- printf("\n");
- return ENXIO;
- }
-
- /* initializing interrupt */
- sc->sc_enab_intr = 1;
- error = awi_intr_lock(sc);
- if (error)
- return error;
- intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT |
- AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD;
- awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff);
- awi_write_1(sc, AWI_INTMASK2, 0);
- awi_write_1(sc, AWI_INTSTAT, 0);
- awi_write_1(sc, AWI_INTSTAT2, 0);
- awi_intr_unlock(sc);
- am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT);
-
- /* issuing interface test command */
- error = awi_cmd(sc, AWI_CMD_NOP);
- if (error) {
- printf("%s: failed to complete selftest", sc->sc_dev.dv_xname);
- if (error == ENXIO)
- printf(" (no hardware)\n");
- else if (error != EWOULDBLOCK)
- printf(" (error %d)\n", error);
- else if (sc->sc_cansleep)
- printf(" (lost interrupt)\n");
- else
- printf(" (command timeout)\n");
- }
- return error;
-}
-
-/*
- * Extract the factory default MIB value from firmware and assign the driver
- * default value.
- * Called once at attaching the interface.
- */
-
-static int
-awi_init_mibs(sc)
- struct awi_softc *sc;
-{
- int i, error;
- u_int8_t *rate;
-
- if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT)) != 0 ||
- (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY)) != 0) {
- printf("%s: failed to get default mib value (error %d)\n",
- sc->sc_dev.dv_xname, error);
- return error;
- }
-
- rate = sc->sc_mib_phy.aSuprt_Data_Rates;
- sc->sc_tx_rate = AWI_RATE_1MBIT;
- for (i = 0; i < rate[1]; i++) {
- if (AWI_80211_RATE(rate[2 + i]) > sc->sc_tx_rate)
- sc->sc_tx_rate = AWI_80211_RATE(rate[2 + i]);
- }
- awi_init_region(sc);
- memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE);
- sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID;
- sc->sc_mib_local.Fragmentation_Dis = 1;
- sc->sc_mib_local.Accept_All_Multicast_Dis = 1;
- sc->sc_mib_local.Power_Saving_Mode_Dis = 1;
-
- /* allocate buffers */
- sc->sc_txbase = AWI_BUFFERS;
- sc->sc_txend = sc->sc_txbase +
- (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) +
- sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS;
- LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase);
- LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size,
- sc->sc_txend - sc->sc_txbase);
- LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend);
- LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size,
- AWI_BUFFERS_END - sc->sc_txend);
- sc->sc_mib_local.Network_Mode = 1;
- sc->sc_mib_local.Acting_as_AP = 0;
- return 0;
-}
-
-/*
- * Start transmitter and receiver of firmware
- * Called after awi_init_hw() to start operation.
- */
-
-static int
-awi_init_txrx(sc)
- struct awi_softc *sc;
-{
- int error;
-
- /* start transmitter */
- sc->sc_txdone = sc->sc_txnext = sc->sc_txbase;
- awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0);
- awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0);
- awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0);
- awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0);
- awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0);
- awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0);
- awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_DATA, sc->sc_txbase);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_MGT, 0);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_BCAST, 0);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_PS, 0);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_TX_CF, 0);
- error = awi_cmd(sc, AWI_CMD_INIT_TX);
- if (error)
- return error;
-
- /* start receiver */
- if (sc->sc_rxpend) {
- m_freem(sc->sc_rxpend);
- sc->sc_rxpend = NULL;
- }
- error = awi_cmd(sc, AWI_CMD_INIT_RX);
- if (error)
- return error;
- sc->sc_rxdoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_DATA_DESC);
- sc->sc_rxmoff = awi_read_4(sc, AWI_CMD_PARAMS+AWI_CA_IRX_PS_DESC);
- return 0;
-}
-
-static void
-awi_stop_txrx(sc)
- struct awi_softc *sc;
-{
-
- if (sc->sc_cmd_inprog)
- (void)awi_cmd_wait(sc);
- (void)awi_cmd(sc, AWI_CMD_KILL_RX);
- (void)awi_cmd_wait(sc);
- sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX;
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_DATA, 1);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_MGT, 0);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_BCAST, 0);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_PS, 0);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_FTX_CF, 0);
- (void)awi_cmd(sc, AWI_CMD_FLUSH_TX);
- (void)awi_cmd_wait(sc);
-}
-
-int
-awi_init_region(sc)
- struct awi_softc *sc;
-{
-
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
- switch (sc->sc_mib_phy.aCurrent_Reg_Domain) {
- case AWI_REG_DOMAIN_US:
- case AWI_REG_DOMAIN_CA:
- case AWI_REG_DOMAIN_EU:
- sc->sc_scan_min = 0;
- sc->sc_scan_max = 77;
- break;
- case AWI_REG_DOMAIN_ES:
- sc->sc_scan_min = 0;
- sc->sc_scan_max = 26;
- break;
- case AWI_REG_DOMAIN_FR:
- sc->sc_scan_min = 0;
- sc->sc_scan_max = 32;
- break;
- case AWI_REG_DOMAIN_JP:
- sc->sc_scan_min = 6;
- sc->sc_scan_max = 17;
- break;
- default:
- return EINVAL;
- }
- sc->sc_scan_set = sc->sc_scan_cur % 3 + 1;
- } else {
- switch (sc->sc_mib_phy.aCurrent_Reg_Domain) {
- case AWI_REG_DOMAIN_US:
- case AWI_REG_DOMAIN_CA:
- sc->sc_scan_min = 1;
- sc->sc_scan_max = 11;
- sc->sc_scan_cur = 3;
- break;
- case AWI_REG_DOMAIN_EU:
- sc->sc_scan_min = 1;
- sc->sc_scan_max = 13;
- sc->sc_scan_cur = 3;
- break;
- case AWI_REG_DOMAIN_ES:
- sc->sc_scan_min = 10;
- sc->sc_scan_max = 11;
- sc->sc_scan_cur = 10;
- break;
- case AWI_REG_DOMAIN_FR:
- sc->sc_scan_min = 10;
- sc->sc_scan_max = 13;
- sc->sc_scan_cur = 10;
- break;
- case AWI_REG_DOMAIN_JP:
- sc->sc_scan_min = 14;
- sc->sc_scan_max = 14;
- sc->sc_scan_cur = 14;
- break;
- default:
- return EINVAL;
- }
- }
- sc->sc_ownch = sc->sc_scan_cur;
- return 0;
-}
-
-static int
-awi_start_scan(sc)
- struct awi_softc *sc;
-{
- int error = 0;
- struct awi_bss *bp;
-
- while ((bp = TAILQ_FIRST(&sc->sc_scan)) != NULL) {
- TAILQ_REMOVE(&sc->sc_scan, bp, list);
- free(bp, M_DEVBUF);
- }
- if (!sc->sc_mib_local.Network_Mode && sc->sc_no_bssid) {
- memset(&sc->sc_bss, 0, sizeof(sc->sc_bss));
- sc->sc_bss.essid[0] = IEEE80211_ELEMID_SSID;
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
- sc->sc_bss.chanset = sc->sc_ownch % 3 + 1;
- sc->sc_bss.pattern = sc->sc_ownch;
- sc->sc_bss.index = 1;
- sc->sc_bss.dwell_time = 200; /*XXX*/
- } else
- sc->sc_bss.chanset = sc->sc_ownch;
- sc->sc_status = AWI_ST_SETSS;
- error = awi_set_ss(sc);
- } else {
- if (sc->sc_mib_local.Network_Mode)
- awi_drvstate(sc, AWI_DRV_INFSC);
- else
- awi_drvstate(sc, AWI_DRV_ADHSC);
- sc->sc_start_bss = 0;
- sc->sc_active_scan = 1;
- sc->sc_mgt_timer = AWI_ASCAN_WAIT / 1000;
- sc->sc_ifp->if_timer = 1;
- sc->sc_status = AWI_ST_SCAN;
- error = awi_cmd_scan(sc);
- }
- return error;
-}
-
-static int
-awi_next_scan(sc)
- struct awi_softc *sc;
-{
- int error;
-
- for (;;) {
- /*
- * The pattern parameter for FH phy should be incremented
- * by 3. But BayStack 650 Access Points apparently always
- * assign hop pattern set parameter to 1 for any pattern.
- * So we try all combinations of pattern/set parameters.
- * Since this causes no error, it may be a bug of
- * PCnetMobile firmware.
- */
- sc->sc_scan_cur++;
- if (sc->sc_scan_cur > sc->sc_scan_max) {
- sc->sc_scan_cur = sc->sc_scan_min;
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- sc->sc_scan_set = sc->sc_scan_set % 3 + 1;
- }
- error = awi_cmd_scan(sc);
- if (error != EINVAL)
- break;
- }
- return error;
-}
-
-static void
-awi_stop_scan(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct awi_bss *bp, *sbp;
- int fail;
-
- bp = TAILQ_FIRST(&sc->sc_scan);
- if (bp == NULL) {
- notfound:
- if (sc->sc_active_scan) {
- if (ifp->if_flags & IFF_DEBUG)
- printf("%s: entering passive scan mode\n",
- sc->sc_dev.dv_xname);
- sc->sc_active_scan = 0;
- }
- sc->sc_mgt_timer = AWI_PSCAN_WAIT / 1000;
- ifp->if_timer = 1;
- (void)awi_next_scan(sc);
- return;
- }
- sbp = NULL;
- if (ifp->if_flags & IFF_DEBUG)
- printf("%s:\tmacaddr ch/pat sig flag wep essid\n",
- sc->sc_dev.dv_xname);
- for (; bp != NULL; bp = TAILQ_NEXT(bp, list)) {
- if (bp->fails) {
- /*
- * The configuration of the access points may change
- * during my scan. So we retries to associate with
- * it unless there are any suitable AP.
- */
- if (bp->fails++ < 3)
- continue;
- bp->fails = 0;
- }
- fail = 0;
- /*
- * Since the firmware apparently scans not only the specified
- * channel of SCAN command but all available channel within
- * the region, we should filter out unnecessary responses here.
- */
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
- if (bp->pattern < sc->sc_scan_min ||
- bp->pattern > sc->sc_scan_max)
- fail |= 0x01;
- } else {
- if (bp->chanset < sc->sc_scan_min ||
- bp->chanset > sc->sc_scan_max)
- fail |= 0x01;
- }
- if (sc->sc_mib_local.Network_Mode) {
- if (!(bp->capinfo & IEEE80211_CAPINFO_ESS) ||
- (bp->capinfo & IEEE80211_CAPINFO_IBSS))
- fail |= 0x02;
- } else {
- if ((bp->capinfo & IEEE80211_CAPINFO_ESS) ||
- !(bp->capinfo & IEEE80211_CAPINFO_IBSS))
- fail |= 0x02;
- }
- if (sc->sc_wep_algo == NULL) {
- if (bp->capinfo & IEEE80211_CAPINFO_PRIVACY)
- fail |= 0x04;
- } else {
- if (!(bp->capinfo & IEEE80211_CAPINFO_PRIVACY))
- fail |= 0x04;
- }
- if (sc->sc_mib_mac.aDesired_ESS_ID[1] != 0 &&
- memcmp(&sc->sc_mib_mac.aDesired_ESS_ID, bp->essid,
- sizeof(bp->essid)) != 0)
- fail |= 0x08;
- if (ifp->if_flags & IFF_DEBUG) {
- printf(" %c %s", fail ? '-' : '+',
- ether_sprintf(bp->esrc));
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- printf(" %2d/%d%c", bp->pattern, bp->chanset,
- fail & 0x01 ? '!' : ' ');
- else
- printf(" %4d%c", bp->chanset,
- fail & 0x01 ? '!' : ' ');
- printf(" %+4d", bp->rssi);
- printf(" %4s%c",
- (bp->capinfo & IEEE80211_CAPINFO_ESS) ? "ess" :
- (bp->capinfo & IEEE80211_CAPINFO_IBSS) ? "ibss" :
- "????",
- fail & 0x02 ? '!' : ' ');
- printf(" %3s%c ",
- (bp->capinfo & IEEE80211_CAPINFO_PRIVACY) ? "wep" :
- "no",
- fail & 0x04 ? '!' : ' ');
- awi_print_essid(bp->essid);
- printf("%s\n", fail & 0x08 ? "!" : "");
- }
- if (!fail) {
- if (sbp == NULL || bp->rssi > sbp->rssi)
- sbp = bp;
- }
- }
- if (sbp == NULL)
- goto notfound;
- sc->sc_bss = *sbp;
- (void)awi_set_ss(sc);
-}
-
-static void
-awi_recv_beacon(sc, m0, rxts, rssi)
- struct awi_softc *sc;
- struct mbuf *m0;
- u_int32_t rxts;
- u_int8_t rssi;
-{
- struct ieee80211_frame *wh;
- struct awi_bss *bp;
- u_int8_t *frame, *eframe;
- u_int8_t *tstamp, *bintval, *capinfo, *ssid, *rates, *parms;
-
- if (sc->sc_status != AWI_ST_SCAN)
- return;
- wh = mtod(m0, struct ieee80211_frame *);
-
- frame = (u_int8_t *)&wh[1];
- eframe = mtod(m0, u_int8_t *) + m0->m_len;
- /*
- * XXX:
- * timestamp [8]
- * beacon interval [2]
- * capability information [2]
- * ssid [tlv]
- * supported rates [tlv]
- * parameter set [tlv]
- * ...
- */
- if (frame + 12 > eframe) {
-#ifdef AWI_DEBUG
- if (awi_verbose)
- printf("awi_recv_beacon: frame too short \n");
-#endif
- return;
- }
- tstamp = frame;
- frame += 8;
- bintval = frame;
- frame += 2;
- capinfo = frame;
- frame += 2;
-
- ssid = rates = parms = NULL;
- while (frame < eframe) {
- switch (*frame) {
- case IEEE80211_ELEMID_SSID:
- ssid = frame;
- break;
- case IEEE80211_ELEMID_RATES:
- rates = frame;
- break;
- case IEEE80211_ELEMID_FHPARMS:
- case IEEE80211_ELEMID_DSPARMS:
- parms = frame;
- break;
- }
- frame += frame[1] + 2;
- }
- if (ssid == NULL || rates == NULL || parms == NULL) {
-#ifdef AWI_DEBUG
- if (awi_verbose)
- printf("awi_recv_beacon: ssid=%p, rates=%p, parms=%p\n",
- ssid, rates, parms);
-#endif
- return;
- }
- if (ssid[1] > IEEE80211_NWID_LEN) {
-#ifdef AWI_DEBUG
- if (awi_verbose)
- printf("awi_recv_beacon: bad ssid len: %d from %s\n",
- ssid[1], ether_sprintf(wh->i_addr2));
-#endif
- return;
- }
-
- for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL;
- bp = TAILQ_NEXT(bp, list)) {
- if (memcmp(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN) == 0 &&
- memcmp(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN) == 0)
- break;
- }
- if (bp == NULL) {
- bp = malloc(sizeof(struct awi_bss), M_DEVBUF, M_NOWAIT);
- if (bp == NULL)
- return;
- TAILQ_INSERT_TAIL(&sc->sc_scan, bp, list);
- memcpy(bp->esrc, wh->i_addr2, ETHER_ADDR_LEN);
- memcpy(bp->bssid, wh->i_addr3, ETHER_ADDR_LEN);
- memset(bp->essid, 0, sizeof(bp->essid));
- memcpy(bp->essid, ssid, 2 + ssid[1]);
- }
- bp->rssi = rssi;
- bp->rxtime = rxts;
- memcpy(bp->timestamp, tstamp, sizeof(bp->timestamp));
- bp->interval = LE_READ_2(bintval);
- bp->capinfo = LE_READ_2(capinfo);
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
- bp->chanset = parms[4];
- bp->pattern = parms[5];
- bp->index = parms[6];
- bp->dwell_time = LE_READ_2(parms + 2);
- } else {
- bp->chanset = parms[2];
- bp->pattern = 0;
- bp->index = 0;
- bp->dwell_time = 0;
- }
- if (sc->sc_mgt_timer == 0)
- awi_stop_scan(sc);
-}
-
-static int
-awi_set_ss(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct awi_bss *bp;
- int error;
-
- sc->sc_status = AWI_ST_SETSS;
- bp = &sc->sc_bss;
- if (ifp->if_flags & IFF_DEBUG) {
- printf("%s: ch %d pat %d id %d dw %d iv %d bss %s ssid ",
- sc->sc_dev.dv_xname, bp->chanset,
- bp->pattern, bp->index, bp->dwell_time, bp->interval,
- ether_sprintf(bp->bssid));
- awi_print_essid(bp->essid);
- printf("\n");
- }
- memcpy(&sc->sc_mib_mgt.aCurrent_BSS_ID, bp->bssid, ETHER_ADDR_LEN);
- memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID, bp->essid,
- AWI_ESS_ID_SIZE);
- LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, bp->interval);
- error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT);
- return error;
-}
-
-static void
-awi_try_sync(sc)
- struct awi_softc *sc;
-{
- struct awi_bss *bp;
-
- sc->sc_status = AWI_ST_SYNC;
- bp = &sc->sc_bss;
-
- if (sc->sc_cmd_inprog) {
- if (awi_cmd_wait(sc))
- return;
- }
- sc->sc_cmd_inprog = AWI_CMD_SYNC;
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_SET, bp->chanset);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_PATTERN, bp->pattern);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_IDX, bp->index);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_STARTBSS,
- sc->sc_start_bss ? 1 : 0);
- awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_DWELL, bp->dwell_time);
- awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_MBZ, 0);
- awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_TIMESTAMP,
- bp->timestamp, 8);
- awi_write_4(sc, AWI_CMD_PARAMS+AWI_CA_SYNC_REFTIME, bp->rxtime);
- (void)awi_cmd(sc, AWI_CMD_SYNC);
-}
-
-static void
-awi_sync_done(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
-
- if (sc->sc_mib_local.Network_Mode) {
- awi_drvstate(sc, AWI_DRV_INFSY);
- awi_send_auth(sc, 1);
- } else {
- if (ifp->if_flags & IFF_DEBUG) {
- printf("%s: synced with", sc->sc_dev.dv_xname);
- if (sc->sc_no_bssid)
- printf(" no-bssid");
- else {
- printf(" %s ssid ",
- ether_sprintf(sc->sc_bss.bssid));
- awi_print_essid(sc->sc_bss.essid);
- }
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- printf(" at chanset %d pattern %d\n",
- sc->sc_bss.chanset, sc->sc_bss.pattern);
- else
- printf(" at channel %d\n", sc->sc_bss.chanset);
- }
- awi_drvstate(sc, AWI_DRV_ADHSY);
- sc->sc_status = AWI_ST_RUNNING;
- ifp->if_flags |= IFF_RUNNING;
- awi_start(ifp);
- }
-}
-
-static void
-awi_send_deauth(sc)
- struct awi_softc *sc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct mbuf *m;
- struct ieee80211_frame *wh;
- u_int8_t *deauth;
-
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == NULL)
- return;
- if (ifp->if_flags & IFF_DEBUG)
- printf("%s: sending deauth to %s\n", sc->sc_dev.dv_xname,
- ether_sprintf(sc->sc_bss.bssid));
-
- wh = mtod(m, struct ieee80211_frame *);
- wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
- IEEE80211_FC0_SUBTYPE_AUTH;
- wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
- LE_WRITE_2(wh->i_dur, 0);
- LE_WRITE_2(wh->i_seq, 0);
- memcpy(wh->i_addr1, sc->sc_bss.bssid, ETHER_ADDR_LEN);
- memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN);
- memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN);
-
- deauth = (u_int8_t *)&wh[1];
- LE_WRITE_2(deauth, IEEE80211_REASON_AUTH_LEAVE);
- deauth += 2;
-
- m->m_pkthdr.len = m->m_len = deauth - mtod(m, u_int8_t *);
- IF_ENQUEUE(&sc->sc_mgtq, m);
- awi_start(ifp);
- awi_drvstate(sc, AWI_DRV_INFTOSS);
-}
-
-static void
-awi_send_auth(sc, seq)
- struct awi_softc *sc;
- int seq;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct mbuf *m;
- struct ieee80211_frame *wh;
- u_int8_t *auth;
-
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == NULL)
- return;
- sc->sc_status = AWI_ST_AUTH;
- if (ifp->if_flags & IFF_DEBUG)
- printf("%s: sending auth to %s\n", sc->sc_dev.dv_xname,
- ether_sprintf(sc->sc_bss.bssid));
-
- wh = mtod(m, struct ieee80211_frame *);
- wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT |
- IEEE80211_FC0_SUBTYPE_AUTH;
- wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
- LE_WRITE_2(wh->i_dur, 0);
- LE_WRITE_2(wh->i_seq, 0);
- memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN);
- memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN);
- memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN);
-
- auth = (u_int8_t *)&wh[1];
- /* algorithm number */
- LE_WRITE_2(auth, IEEE80211_AUTH_ALG_OPEN);
- auth += 2;
- /* sequence number */
- LE_WRITE_2(auth, seq);
- auth += 2;
- /* status */
- LE_WRITE_2(auth, 0);
- auth += 2;
-
- m->m_pkthdr.len = m->m_len = auth - mtod(m, u_int8_t *);
- IF_ENQUEUE(&sc->sc_mgtq, m);
- awi_start(ifp);
-
- sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000;
- ifp->if_timer = 1;
-}
-
-static void
-awi_recv_auth(sc, m0)
- struct awi_softc *sc;
- struct mbuf *m0;
-{
- struct ieee80211_frame *wh;
- u_int8_t *auth, *eframe;
- struct awi_bss *bp;
- u_int16_t status;
-
- wh = mtod(m0, struct ieee80211_frame *);
- auth = (u_int8_t *)&wh[1];
- eframe = mtod(m0, u_int8_t *) + m0->m_len;
- if (sc->sc_ifp->if_flags & IFF_DEBUG)
- printf("%s: receive auth from %s\n", sc->sc_dev.dv_xname,
- ether_sprintf(wh->i_addr2));
-
- /* algorithm number */
- if (LE_READ_2(auth) != IEEE80211_AUTH_ALG_OPEN)
- return;
- auth += 2;
- if (!sc->sc_mib_local.Network_Mode) {
- if (sc->sc_status != AWI_ST_RUNNING)
- return;
- if (LE_READ_2(auth) == 1)
- awi_send_auth(sc, 2);
- return;
- }
- if (sc->sc_status != AWI_ST_AUTH)
- return;
- /* sequence number */
- if (LE_READ_2(auth) != 2)
- return;
- auth += 2;
- /* status */
- status = LE_READ_2(auth);
- if (status != 0) {
- printf("%s: authentication failed (reason %d)\n",
- sc->sc_dev.dv_xname, status);
- for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL;
- bp = TAILQ_NEXT(bp, list)) {
- if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN)
- == 0) {
- bp->fails++;
- break;
- }
- }
- return;
- }
- sc->sc_mgt_timer = 0;
- awi_drvstate(sc, AWI_DRV_INFAUTH);
- awi_send_asreq(sc, 0);
-}
-
-static void
-awi_send_asreq(sc, reassoc)
- struct awi_softc *sc;
- int reassoc;
-{
- struct ifnet *ifp = sc->sc_ifp;
- struct mbuf *m;
- struct ieee80211_frame *wh;
- u_int16_t lintval;
- u_int8_t *asreq;
-
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == NULL)
- return;
- sc->sc_status = AWI_ST_ASSOC;
- if (ifp->if_flags & IFF_DEBUG)
- printf("%s: sending %sassoc req to %s\n", sc->sc_dev.dv_xname,
- reassoc ? "re" : "",
- ether_sprintf(sc->sc_bss.bssid));
-
- wh = mtod(m, struct ieee80211_frame *);
- wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT;
- if (reassoc)
- wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_REASSOC_REQ;
- else
- wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_ASSOC_REQ;
- wh->i_fc[1] = IEEE80211_FC1_DIR_NODS;
- LE_WRITE_2(wh->i_dur, 0);
- LE_WRITE_2(wh->i_seq, 0);
- memcpy(wh->i_addr1, sc->sc_bss.esrc, ETHER_ADDR_LEN);
- memcpy(wh->i_addr2, sc->sc_mib_addr.aMAC_Address, ETHER_ADDR_LEN);
- memcpy(wh->i_addr3, sc->sc_bss.bssid, ETHER_ADDR_LEN);
-
- asreq = (u_int8_t *)&wh[1];
-
- /* capability info */
- if (sc->sc_wep_algo == NULL)
- LE_WRITE_2(asreq, IEEE80211_CAPINFO_CF_POLLABLE);
- else
- LE_WRITE_2(asreq,
- IEEE80211_CAPINFO_CF_POLLABLE | IEEE80211_CAPINFO_PRIVACY);
- asreq += 2;
- /* listen interval */
- lintval = LE_READ_2(&sc->sc_mib_mgt.aListen_Interval);
- LE_WRITE_2(asreq, lintval);
- asreq += 2;
- if (reassoc) {
- /* current AP address */
- memcpy(asreq, sc->sc_bss.bssid, ETHER_ADDR_LEN);
- asreq += ETHER_ADDR_LEN;
- }
- /* ssid */
- memcpy(asreq, sc->sc_bss.essid, 2 + sc->sc_bss.essid[1]);
- asreq += 2 + asreq[1];
- /* supported rates */
- memcpy(asreq, &sc->sc_mib_phy.aSuprt_Data_Rates, 4);
- asreq += 2 + asreq[1];
-
- m->m_pkthdr.len = m->m_len = asreq - mtod(m, u_int8_t *);
- IF_ENQUEUE(&sc->sc_mgtq, m);
- awi_start(ifp);
-
- sc->sc_mgt_timer = AWI_TRANS_TIMEOUT / 1000;
- ifp->if_timer = 1;
-}
-
-static void
-awi_recv_asresp(sc, m0)
- struct awi_softc *sc;
- struct mbuf *m0;
-{
- struct ieee80211_frame *wh;
- u_int8_t *asresp, *eframe;
- u_int16_t status;
- u_int8_t rate, *phy_rates;
- struct awi_bss *bp;
- int i, j;
-
- wh = mtod(m0, struct ieee80211_frame *);
- asresp = (u_int8_t *)&wh[1];
- eframe = mtod(m0, u_int8_t *) + m0->m_len;
- if (sc->sc_ifp->if_flags & IFF_DEBUG)
- printf("%s: receive assoc resp from %s\n", sc->sc_dev.dv_xname,
- ether_sprintf(wh->i_addr2));
-
- if (!sc->sc_mib_local.Network_Mode)
- return;
-
- if (sc->sc_status != AWI_ST_ASSOC)
- return;
- /* capability info */
- asresp += 2;
- /* status */
- status = LE_READ_2(asresp);
- if (status != 0) {
- printf("%s: association failed (reason %d)\n",
- sc->sc_dev.dv_xname, status);
- for (bp = TAILQ_FIRST(&sc->sc_scan); bp != NULL;
- bp = TAILQ_NEXT(bp, list)) {
- if (memcmp(bp->esrc, sc->sc_bss.esrc, ETHER_ADDR_LEN)
- == 0) {
- bp->fails++;
- break;
- }
- }
- return;
- }
- asresp += 2;
- /* association id */
- asresp += 2;
- /* supported rates */
- rate = AWI_RATE_1MBIT;
- for (i = 0; i < asresp[1]; i++) {
- if (AWI_80211_RATE(asresp[2 + i]) <= rate)
- continue;
- phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
- for (j = 0; j < phy_rates[1]; j++) {
- if (AWI_80211_RATE(asresp[2 + i]) ==
- AWI_80211_RATE(phy_rates[2 + j]))
- rate = AWI_80211_RATE(asresp[2 + i]);
- }
- }
- if (sc->sc_ifp->if_flags & IFF_DEBUG) {
- printf("%s: associated with %s ssid ",
- sc->sc_dev.dv_xname, ether_sprintf(sc->sc_bss.bssid));
- awi_print_essid(sc->sc_bss.essid);
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
- printf(" chanset %d pattern %d\n",
- sc->sc_bss.chanset, sc->sc_bss.pattern);
- else
- printf(" channel %d\n", sc->sc_bss.chanset);
- }
- sc->sc_tx_rate = rate;
- sc->sc_mgt_timer = 0;
- sc->sc_rx_timer = 10;
- sc->sc_ifp->if_timer = 1;
- sc->sc_status = AWI_ST_RUNNING;
- sc->sc_ifp->if_flags |= IFF_RUNNING;
- awi_drvstate(sc, AWI_DRV_INFASSOC);
- awi_start(sc->sc_ifp);
-}
-
-static int
-awi_mib(sc, cmd, mib)
- struct awi_softc *sc;
- u_int8_t cmd;
- u_int8_t mib;
-{
- int error;
- u_int8_t size, *ptr;
-
- switch (mib) {
- case AWI_MIB_LOCAL:
- ptr = (u_int8_t *)&sc->sc_mib_local;
- size = sizeof(sc->sc_mib_local);
- break;
- case AWI_MIB_ADDR:
- ptr = (u_int8_t *)&sc->sc_mib_addr;
- size = sizeof(sc->sc_mib_addr);
- break;
- case AWI_MIB_MAC:
- ptr = (u_int8_t *)&sc->sc_mib_mac;
- size = sizeof(sc->sc_mib_mac);
- break;
- case AWI_MIB_STAT:
- ptr = (u_int8_t *)&sc->sc_mib_stat;
- size = sizeof(sc->sc_mib_stat);
- break;
- case AWI_MIB_MGT:
- ptr = (u_int8_t *)&sc->sc_mib_mgt;
- size = sizeof(sc->sc_mib_mgt);
- break;
- case AWI_MIB_PHY:
- ptr = (u_int8_t *)&sc->sc_mib_phy;
- size = sizeof(sc->sc_mib_phy);
- break;
- default:
- return EINVAL;
- }
- if (sc->sc_cmd_inprog) {
- error = awi_cmd_wait(sc);
- if (error) {
- if (error == EWOULDBLOCK)
- printf("awi_mib: cmd %d inprog",
- sc->sc_cmd_inprog);
- return error;
- }
- }
- sc->sc_cmd_inprog = cmd;
- if (cmd == AWI_CMD_SET_MIB)
- awi_write_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_TYPE, mib);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_SIZE, size);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_MIB_INDEX, 0);
- error = awi_cmd(sc, cmd);
- if (error)
- return error;
- if (cmd == AWI_CMD_GET_MIB) {
- awi_read_bytes(sc, AWI_CMD_PARAMS+AWI_CA_MIB_DATA, ptr, size);
-#ifdef AWI_DEBUG
- if (awi_verbose) {
- int i;
-
- printf("awi_mib: #%d:", mib);
- for (i = 0; i < size; i++)
- printf(" %02x", ptr[i]);
- printf("\n");
- }
-#endif
- }
- return 0;
-}
-
-static int
-awi_cmd_scan(sc)
- struct awi_softc *sc;
-{
- int error;
- u_int8_t scan_mode;
-
- if (sc->sc_active_scan)
- scan_mode = AWI_SCAN_ACTIVE;
- else
- scan_mode = AWI_SCAN_PASSIVE;
- if (sc->sc_mib_mgt.aScan_Mode != scan_mode) {
- sc->sc_mib_mgt.aScan_Mode = scan_mode;
- error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT);
- return error;
- }
-
- if (sc->sc_cmd_inprog) {
- error = awi_cmd_wait(sc);
- if (error)
- return error;
- }
- sc->sc_cmd_inprog = AWI_CMD_SCAN;
- awi_write_2(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_DURATION,
- sc->sc_active_scan ? AWI_ASCAN_DURATION : AWI_PSCAN_DURATION);
- if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET,
- sc->sc_scan_set);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN,
- sc->sc_scan_cur);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 1);
- } else {
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SET,
- sc->sc_scan_cur);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_PATTERN, 0);
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_IDX, 0);
- }
- awi_write_1(sc, AWI_CMD_PARAMS+AWI_CA_SCAN_SUSP, 0);
- return awi_cmd(sc, AWI_CMD_SCAN);
-}
-
-static int
-awi_cmd(sc, cmd)
- struct awi_softc *sc;
- u_int8_t cmd;
-{
- u_int8_t status;
- int error = 0;
-
- sc->sc_cmd_inprog = cmd;
- awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE);
- awi_write_1(sc, AWI_CMD, cmd);
- if (sc->sc_status != AWI_ST_INIT)
- return 0;
- error = awi_cmd_wait(sc);
- if (error)
- return error;
- status = awi_read_1(sc, AWI_CMD_STATUS);
- awi_write_1(sc, AWI_CMD, 0);
- switch (status) {
- case AWI_STAT_OK:
- break;
- case AWI_STAT_BADPARM:
- return EINVAL;
- default:
- printf("%s: command %d failed %x\n",
- sc->sc_dev.dv_xname, cmd, status);
- return ENXIO;
- }
- return 0;
-}
-
-static void
-awi_cmd_done(sc)
- struct awi_softc *sc;
-{
- u_int8_t cmd, status;
-
- status = awi_read_1(sc, AWI_CMD_STATUS);
- if (status == AWI_STAT_IDLE)
- return; /* stray interrupt */
-
- cmd = sc->sc_cmd_inprog;
- sc->sc_cmd_inprog = 0;
- if (sc->sc_status == AWI_ST_INIT) {
- wakeup(sc);
- return;
- }
- awi_write_1(sc, AWI_CMD, 0);
-
- if (status != AWI_STAT_OK) {
- printf("%s: command %d failed %x\n",
- sc->sc_dev.dv_xname, cmd, status);
- return;
- }
- switch (sc->sc_status) {
- case AWI_ST_SCAN:
- if (cmd == AWI_CMD_SET_MIB)
- awi_cmd_scan(sc); /* retry */
- break;
- case AWI_ST_SETSS:
- awi_try_sync(sc);
- break;
- case AWI_ST_SYNC:
- awi_sync_done(sc);
- break;
- default:
- break;
- }
-}
-
-static int
-awi_next_txd(sc, len, framep, ntxdp)
- struct awi_softc *sc;
- int len;
- u_int32_t *framep, *ntxdp;
-{
- u_int32_t txd, ntxd, frame;
-
- txd = sc->sc_txnext;
- frame = txd + AWI_TXD_SIZE;
- if (frame + len > sc->sc_txend)
- frame = sc->sc_txbase;
- ntxd = frame + len;
- if (ntxd + AWI_TXD_SIZE > sc->sc_txend)
- ntxd = sc->sc_txbase;
- *framep = frame;
- *ntxdp = ntxd;
- /*
- * Determine if there are any room in ring buffer.
- * --- send wait, === new data, +++ conflict (ENOBUFS)
- * base........................end
- * done----txd=====ntxd OK
- * --txd=====done++++ntxd-- full
- * --txd=====ntxd done-- OK
- * ==ntxd done----txd=== OK
- * ==done++++ntxd----txd=== full
- * ++ntxd txd=====done++ full
- */
- if (txd < ntxd) {
- if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone)
- return ENOBUFS;
- } else {
- if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone)
- return ENOBUFS;
- }
- return 0;
-}
-
-static int
-awi_lock(sc)
- struct awi_softc *sc;
-{
- int error = 0;
-
- if (curproc == NULL) {
- /*
- * XXX
- * Though driver ioctl should be called with context,
- * KAME ipv6 stack calls ioctl in interrupt for now.
- * We simply abort the request if there are other
- * ioctl requests in progress.
- */
- if (sc->sc_busy) {
- return EWOULDBLOCK;
- if (sc->sc_invalid)
- return ENXIO;
- }
- sc->sc_busy = 1;
- sc->sc_cansleep = 0;
- return 0;
- }
- while (sc->sc_busy) {
- if (sc->sc_invalid)
- return ENXIO;
- sc->sc_sleep_cnt++;
- error = tsleep(sc, PWAIT | PCATCH, "awilck", 0);
- sc->sc_sleep_cnt--;
- if (error)
- return error;
- }
- sc->sc_busy = 1;
- sc->sc_cansleep = 1;
- return 0;
-}
-
-static void
-awi_unlock(sc)
- struct awi_softc *sc;
-{
- sc->sc_busy = 0;
- sc->sc_cansleep = 0;
- if (sc->sc_sleep_cnt)
- wakeup(sc);
-}
-
-static int
-awi_intr_lock(sc)
- struct awi_softc *sc;
-{
- u_int8_t status;
- int i, retry;
-
- status = 1;
- for (retry = 0; retry < 10; retry++) {
- for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) {
- status = awi_read_1(sc, AWI_LOCKOUT_HOST);
- if (status == 0)
- break;
- DELAY(5);
- }
- if (status != 0)
- break;
- awi_write_1(sc, AWI_LOCKOUT_MAC, 1);
- status = awi_read_1(sc, AWI_LOCKOUT_HOST);
- if (status == 0)
- break;
- awi_write_1(sc, AWI_LOCKOUT_MAC, 0);
- }
- if (status != 0) {
- printf("%s: failed to lock interrupt\n",
- sc->sc_dev.dv_xname);
- return ENXIO;
- }
- return 0;
-}
-
-static void
-awi_intr_unlock(sc)
- struct awi_softc *sc;
-{
-
- awi_write_1(sc, AWI_LOCKOUT_MAC, 0);
-}
-
-static int
-awi_cmd_wait(sc)
- struct awi_softc *sc;
-{
- int i, error = 0;
-
- i = 0;
- while (sc->sc_cmd_inprog) {
- if (sc->sc_invalid)
- return ENXIO;
- if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) {
- printf("%s: failed to access hardware\n",
- sc->sc_dev.dv_xname);
- sc->sc_invalid = 1;
- return ENXIO;
- }
- if (sc->sc_cansleep) {
- sc->sc_sleep_cnt++;
- error = tsleep(sc, PWAIT, "awicmd",
- AWI_CMD_TIMEOUT*hz/1000);
- sc->sc_sleep_cnt--;
- } else {
- if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) {
- awi_cmd_done(sc);
- break;
- }
- if (i++ >= AWI_CMD_TIMEOUT*1000/10)
- error = EWOULDBLOCK;
- else
- DELAY(10);
- }
- if (error)
- break;
- }
- return error;
-}
-
-static void
-awi_print_essid(essid)
- u_int8_t *essid;
-{
- int i, len;
- u_int8_t *p;
-
- len = essid[1];
- if (len > IEEE80211_NWID_LEN)
- len = IEEE80211_NWID_LEN; /*XXX*/
- /* determine printable or not */
- for (i = 0, p = essid + 2; i < len; i++, p++) {
- if (*p < ' ' || *p > 0x7e)
- break;
- }
- if (i == len) {
- printf("\"");
- for (i = 0, p = essid + 2; i < len; i++, p++)
- printf("%c", *p);
- printf("\"");
- } else {
- printf("0x");
- for (i = 0, p = essid + 2; i < len; i++, p++)
- printf("%02x", *p);
- }
-}
-
-#ifdef AWI_DEBUG
-static void
-awi_dump_pkt(sc, m, rssi)
- struct awi_softc *sc;
- struct mbuf *m;
- int rssi;
-{
- struct ieee80211_frame *wh;
- int i, l;
-
- wh = mtod(m, struct ieee80211_frame *);
-
- if (awi_dump_mask != 0 &&
- ((wh->i_fc[1] & IEEE80211_FC1_DIR_MASK)==IEEE80211_FC1_DIR_NODS) &&
- ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_MGT)) {
- if ((AWI_DUMP_MASK(wh->i_fc[0]) & awi_dump_mask) != 0)
- return;
- }
- if (awi_dump_mask < 0 &&
- (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK)==IEEE80211_FC0_TYPE_DATA)
- return;
-
- if (rssi < 0)
- printf("tx: ");
- else
- printf("rx: ");
- switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) {
- case IEEE80211_FC1_DIR_NODS:
- printf("NODS %s", ether_sprintf(wh->i_addr2));
- printf("->%s", ether_sprintf(wh->i_addr1));
- printf("(%s)", ether_sprintf(wh->i_addr3));
- break;
- case IEEE80211_FC1_DIR_TODS:
- printf("TODS %s", ether_sprintf(wh->i_addr2));
- printf("->%s", ether_sprintf(wh->i_addr3));
- printf("(%s)", ether_sprintf(wh->i_addr1));
- break;
- case IEEE80211_FC1_DIR_FROMDS:
- printf("FRDS %s", ether_sprintf(wh->i_addr3));
- printf("->%s", ether_sprintf(wh->i_addr1));
- printf("(%s)", ether_sprintf(wh->i_addr2));
- break;
- case IEEE80211_FC1_DIR_DSTODS:
- printf("DSDS %s", ether_sprintf((u_int8_t *)&wh[1]));
- printf("->%s", ether_sprintf(wh->i_addr3));
- printf("(%s", ether_sprintf(wh->i_addr2));
- printf("->%s)", ether_sprintf(wh->i_addr1));
- break;
- }
- switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
- case IEEE80211_FC0_TYPE_DATA:
- printf(" data");
- break;
- case IEEE80211_FC0_TYPE_MGT:
- switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
- case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
- printf(" probe_req");
- break;
- case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
- printf(" probe_resp");
- break;
- case IEEE80211_FC0_SUBTYPE_BEACON:
- printf(" beacon");
- break;
- case IEEE80211_FC0_SUBTYPE_AUTH:
- printf(" auth");
- break;
- case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
- printf(" assoc_req");
- break;
- case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
- printf(" assoc_resp");
- break;
- case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
- printf(" reassoc_req");
- break;
- case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
- printf(" reassoc_resp");
- break;
- case IEEE80211_FC0_SUBTYPE_DEAUTH:
- printf(" deauth");
- break;
- case IEEE80211_FC0_SUBTYPE_DISASSOC:
- printf(" disassoc");
- break;
- default:
- printf(" mgt#%d",
- wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
- break;
- }
- break;
- default:
- printf(" type#%d",
- wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK);
- break;
- }
- if (wh->i_fc[1] & IEEE80211_FC1_WEP)
- printf(" WEP");
- if (rssi >= 0)
- printf(" +%d", rssi);
- printf("\n");
- if (awi_dump_len > 0) {
- l = m->m_len;
- if (l > awi_dump_len + sizeof(*wh))
- l = awi_dump_len + sizeof(*wh);
- i = sizeof(*wh);
- if (awi_dump_hdr)
- i = 0;
- for (; i < l; i++) {
- if ((i & 1) == 0)
- printf(" ");
- printf("%02x", mtod(m, u_int8_t *)[i]);
- }
- printf("\n");
- }
-}
-#endif