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4e70215e6b
freebsd-skq/sys/dev/wi/if_wi.c
imp 4e70215e6b Make sure that we call if_free(ifp) after bus_teardown_intr. Since we 
could get an interrupt after we free the ifp, and the interrupt
handler depended on the ifp being still alive, this could, in theory,
cause a crash.  Eliminate this possibility by moving the if_free to
after the bus_teardown_intr() call.
2005-09-19 03:10:21 +00:00

3235 lines
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/* $NetBSD: wi.c,v 1.109 2003/01/09 08:52:19 dyoung Exp $ */
/*-
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. 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.
*/
/*
* Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
*
* Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
/*
* The WaveLAN/IEEE adapter is the second generation of the WaveLAN
* from Lucent. Unlike the older cards, the new ones are programmed
* entirely via a firmware-driven controller called the Hermes.
* Unfortunately, Lucent will not release the Hermes programming manual
* without an NDA (if at all). What they do release is an API library
* called the HCF (Hardware Control Functions) which is supposed to
* do the device-specific operations of a device driver for you. The
* publically available version of the HCF library (the 'HCF Light') is
* a) extremely gross, b) lacks certain features, particularly support
* for 802.11 frames, and c) is contaminated by the GNU Public License.
*
* This driver does not use the HCF or HCF Light at all. Instead, it
* programs the Hermes controller directly, using information gleaned
* from the HCF Light code and corresponding documentation.
*
* This driver supports the ISA, PCMCIA and PCI versions of the Lucent
* WaveLan cards (based on the Hermes chipset), as well as the newer
* Prism 2 chipsets with firmware from Intersil and Symbol.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define WI_HERMES_AUTOINC_WAR /* Work around data write autoinc bug. */
#define WI_HERMES_STATS_WAR /* Work around stats counter bug. */
#define NBPFILTER 1
#include <sys/param.h>
#include <sys/systm.h>
#if __FreeBSD_version >= 500033
#include <sys/endian.h>
#endif
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/random.h>
#include <sys/syslog.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/clock.h>
#include <machine/atomic.h>
#include <sys/rman.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/if_types.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <net80211/ieee80211_radiotap.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <net/bpf.h>
#include <dev/wi/if_wavelan_ieee.h>
#include <dev/wi/if_wireg.h>
#include <dev/wi/if_wivar.h>
static void wi_start(struct ifnet *);
static int wi_reset(struct wi_softc *);
static void wi_watchdog(struct ifnet *);
static int wi_ioctl(struct ifnet *, u_long, caddr_t);
static int wi_media_change(struct ifnet *);
static void wi_media_status(struct ifnet *, struct ifmediareq *);
static void wi_rx_intr(struct wi_softc *);
static void wi_tx_intr(struct wi_softc *);
static void wi_tx_ex_intr(struct wi_softc *);
static void wi_info_intr(struct wi_softc *);
static int wi_get_cfg(struct ifnet *, u_long, caddr_t);
static int wi_set_cfg(struct ifnet *, u_long, caddr_t);
static int wi_write_txrate(struct wi_softc *);
static int wi_write_wep(struct wi_softc *);
static int wi_write_multi(struct wi_softc *);
static int wi_alloc_fid(struct wi_softc *, int, int *);
static void wi_read_nicid(struct wi_softc *);
static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
static int wi_cmd(struct wi_softc *, int, int, int, int);
static int wi_seek_bap(struct wi_softc *, int, int);
static int wi_read_bap(struct wi_softc *, int, int, void *, int);
static int wi_write_bap(struct wi_softc *, int, int, void *, int);
static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
static int wi_read_rid(struct wi_softc *, int, void *, int *);
static int wi_write_rid(struct wi_softc *, int, void *, int);
static int wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
static int wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
static void wi_scan_result(struct wi_softc *, int, int);
static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
static int wi_get_debug(struct wi_softc *, struct wi_req *);
static int wi_set_debug(struct wi_softc *, struct wi_req *);
#if __FreeBSD_version >= 500000
/* support to download firmware for symbol CF card */
static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
const void *, int);
static int wi_symbol_set_hcr(struct wi_softc *, int);
#endif
static __inline int
wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
{
val = htole16(val);
return wi_write_rid(sc, rid, &val, sizeof(val));
}
SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
static struct timeval lasttxerror; /* time of last tx error msg */
static int curtxeps; /* current tx error msgs/sec */
static int wi_txerate = 0; /* tx error rate: max msgs/sec */
SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
0, "max tx error msgs/sec; 0 to disable msgs");
#define WI_DEBUG
#ifdef WI_DEBUG
static int wi_debug = 0;
SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
0, "control debugging printfs");
#define DPRINTF(X) if (wi_debug) printf X
#define DPRINTF2(X) if (wi_debug > 1) printf X
#define IFF_DUMPPKTS(_ifp) \
(((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
#else
#define DPRINTF(X)
#define DPRINTF2(X)
#define IFF_DUMPPKTS(_ifp) 0
#endif
#define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
struct wi_card_ident wi_card_ident[] = {
/* CARD_ID CARD_NAME FIRM_TYPE */
{ WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT },
{ WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT },
{ WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT },
{ WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL },
{ WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL },
{ WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL },
{ WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL },
{ WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL },
{ WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL },
{ WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL },
{ WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL },
{ WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL },
{ WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
{ WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
{ WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
{ WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
{ WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
{ WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
{ WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
{ WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
{ WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
{ WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
{ WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
{ WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
{ WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
{ 0, NULL, 0 },
};
devclass_t wi_devclass;
int
wi_attach(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
struct ieee80211com *ic = &sc->sc_ic;
struct ifnet *ifp;
int i, nrates, buflen;
u_int16_t val;
u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
struct ieee80211_rateset *rs;
static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
int error;
ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
device_printf(dev, "can not if_alloc\n");
wi_free(dev);
return (ENOSPC);
}
/*
* NB: no locking is needed here; don't put it here
* unless you can prove it!
*/
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
wi_intr, sc, &sc->wi_intrhand);
if (error) {
device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
wi_free(dev);
return (error);
}
#if __FreeBSD_version >= 500000
mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
MTX_DEF | MTX_RECURSE);
#endif
sc->sc_firmware_type = WI_NOTYPE;
sc->wi_cmd_count = 500;
/* Reset the NIC. */
if (wi_reset(sc) != 0)
return ENXIO; /* XXX */
/*
* Read the station address.
* And do it twice. I've seen PRISM-based cards that return
* an error when trying to read it the first time, which causes
* the probe to fail.
*/
buflen = IEEE80211_ADDR_LEN;
error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
if (error != 0) {
buflen = IEEE80211_ADDR_LEN;
error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
}
if (error || IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
if (error != 0)
device_printf(dev, "mac read failed %d\n", error);
else {
device_printf(dev, "mac read failed (all zeros)\n");
error = ENXIO;
}
wi_free(dev);
return (error);
}
/* Read NIC identification */
wi_read_nicid(sc);
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = wi_ioctl;
ifp->if_start = wi_start;
ifp->if_watchdog = wi_watchdog;
ifp->if_init = wi_init;
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
IFQ_SET_READY(&ifp->if_snd);
ic->ic_ifp = ifp;
ic->ic_phytype = IEEE80211_T_DS;
ic->ic_opmode = IEEE80211_M_STA;
ic->ic_state = IEEE80211_S_INIT;
ic->ic_caps = IEEE80211_C_PMGT
| IEEE80211_C_WEP /* everyone supports WEP */
;
ic->ic_max_aid = WI_MAX_AID;
/*
* Query the card for available channels and setup the
* channel table. We assume these are all 11b channels.
*/
buflen = sizeof(val);
if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
val = htole16(0x1fff); /* assume 1-11 */
KASSERT(val != 0, ("wi_attach: no available channels listed!"));
val <<= 1; /* shift for base 1 indices */
for (i = 1; i < 16; i++) {
if (!isset((u_int8_t*)&val, i))
continue;
ic->ic_channels[i].ic_freq =
ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
}
/*
* Read the default channel from the NIC. This may vary
* depending on the country where the NIC was purchased, so
* we can't hard-code a default and expect it to work for
* everyone.
*
* If no channel is specified, let the 802.11 code select.
*/
buflen = sizeof(val);
if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
val = le16toh(val);
KASSERT(val < IEEE80211_CHAN_MAX &&
ic->ic_channels[val].ic_flags != 0,
("wi_attach: invalid own channel %u!", val));
ic->ic_ibss_chan = &ic->ic_channels[val];
} else {
device_printf(dev,
"WI_RID_OWN_CHNL failed, using first channel!\n");
ic->ic_ibss_chan = &ic->ic_channels[0];
}
/*
* Set flags based on firmware version.
*/
switch (sc->sc_firmware_type) {
case WI_LUCENT:
sc->sc_ntxbuf = 1;
sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
#ifdef WI_HERMES_AUTOINC_WAR
/* XXX: not confirmed, but never seen for recent firmware */
if (sc->sc_sta_firmware_ver < 40000) {
sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
}
#endif
if (sc->sc_sta_firmware_ver >= 60000)
sc->sc_flags |= WI_FLAGS_HAS_MOR;
if (sc->sc_sta_firmware_ver >= 60006) {
ic->ic_caps |= IEEE80211_C_IBSS;
ic->ic_caps |= IEEE80211_C_MONITOR;
}
sc->sc_ibss_port = htole16(1);
sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
break;
case WI_INTERSIL:
sc->sc_ntxbuf = WI_NTXBUF;
sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
/*
* Old firmware are slow, so give peace a chance.
*/
if (sc->sc_sta_firmware_ver < 10000)
sc->wi_cmd_count = 5000;
if (sc->sc_sta_firmware_ver > 10101)
sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
if (sc->sc_sta_firmware_ver >= 800) {
ic->ic_caps |= IEEE80211_C_IBSS;
ic->ic_caps |= IEEE80211_C_MONITOR;
}
/*
* version 0.8.3 and newer are the only ones that are known
* to currently work. Earlier versions can be made to work,
* at least according to the Linux driver.
*/
if (sc->sc_sta_firmware_ver >= 803)
ic->ic_caps |= IEEE80211_C_HOSTAP;
sc->sc_ibss_port = htole16(0);
sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
break;
case WI_SYMBOL:
sc->sc_ntxbuf = 1;
sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
if (sc->sc_sta_firmware_ver >= 25000)
ic->ic_caps |= IEEE80211_C_IBSS;
sc->sc_ibss_port = htole16(4);
sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
break;
}
/*
* Find out if we support WEP on this card.
*/
buflen = sizeof(val);
if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
val != htole16(0))
ic->ic_caps |= IEEE80211_C_WEP;
/* Find supported rates. */
buflen = sizeof(ratebuf);
rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
nrates = le16toh(*(u_int16_t *)ratebuf);
if (nrates > IEEE80211_RATE_MAXSIZE)
nrates = IEEE80211_RATE_MAXSIZE;
rs->rs_nrates = 0;
for (i = 0; i < nrates; i++)
if (ratebuf[2+i])
rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
} else {
/* XXX fallback on error? */
rs->rs_nrates = 0;
}
buflen = sizeof(val);
if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
sc->sc_dbm_offset = le16toh(val);
}
sc->sc_max_datalen = 2304;
sc->sc_system_scale = 1;
sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
sc->sc_roaming_mode = 1;
sc->sc_portnum = WI_DEFAULT_PORT;
sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
sizeof(WI_DEFAULT_NETNAME) - 1);
/*
* Call MI attach routine.
*/
ieee80211_ifattach(ic);
/* override state transition method */
sc->sc_newstate = ic->ic_newstate;
ic->ic_newstate = wi_newstate;
ieee80211_media_init(ic, wi_media_change, wi_media_status);
#if NBPFILTER > 0
bpfattach2(ifp, DLT_IEEE802_11_RADIO,
sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
&sc->sc_drvbpf);
/*
* Initialize constant fields.
* XXX make header lengths a multiple of 32-bits so subsequent
* headers are properly aligned; this is a kludge to keep
* certain applications happy.
*
* NB: the channel is setup each time we transition to the
* RUN state to avoid filling it in for each frame.
*/
sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
#endif
if (bootverbose)
ieee80211_announce(ic);
return (0);
}
int
wi_detach(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->sc_ifp;
WI_LOCK_DECL();
WI_LOCK(sc);
/* check if device was removed */
sc->wi_gone |= !bus_child_present(dev);
wi_stop(ifp, 0);
#if NBPFILTER > 0
bpfdetach(ifp);
#endif
ieee80211_ifdetach(&sc->sc_ic);
WI_UNLOCK(sc);
bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
if_free(sc->sc_ifp);
wi_free(dev);
#if __FreeBSD_version >= 500000
mtx_destroy(&sc->sc_mtx);
#endif
return (0);
}
#ifdef __NetBSD__
int
wi_activate(struct device *self, enum devact act)
{
struct wi_softc *sc = (struct wi_softc *)self;
int rv = 0, s;
s = splnet();
switch (act) {
case DVACT_ACTIVATE:
rv = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
if_deactivate(sc->sc_ifp);
break;
}
splx(s);
return rv;
}
void
wi_power(struct wi_softc *sc, int why)
{
struct ifnet *ifp = sc->sc_ifp;
int s;
s = splnet();
switch (why) {
case PWR_SUSPEND:
case PWR_STANDBY:
wi_stop(ifp, 1);
break;
case PWR_RESUME:
if (ifp->if_flags & IFF_UP) {
wi_init(ifp);
(void)wi_intr(sc);
}
break;
case PWR_SOFTSUSPEND:
case PWR_SOFTSTANDBY:
case PWR_SOFTRESUME:
break;
}
splx(s);
}
#endif /* __NetBSD__ */
void
wi_shutdown(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
wi_stop(sc->sc_ifp, 1);
}
void
wi_intr(void *arg)
{
struct wi_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
u_int16_t status;
WI_LOCK_DECL();
WI_LOCK(sc);
if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
CSR_WRITE_2(sc, WI_INT_EN, 0);
CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
WI_UNLOCK(sc);
return;
}
/* Disable interrupts. */
CSR_WRITE_2(sc, WI_INT_EN, 0);
status = CSR_READ_2(sc, WI_EVENT_STAT);
if (status & WI_EV_RX)
wi_rx_intr(sc);
if (status & WI_EV_ALLOC)
wi_tx_intr(sc);
if (status & WI_EV_TX_EXC)
wi_tx_ex_intr(sc);
if (status & WI_EV_INFO)
wi_info_intr(sc);
if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
(sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
wi_start(ifp);
/* Re-enable interrupts. */
CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
WI_UNLOCK(sc);
return;
}
void
wi_init(void *arg)
{
struct wi_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
struct ieee80211com *ic = &sc->sc_ic;
struct wi_joinreq join;
int i;
int error = 0, wasenabled;
struct ifaddr *ifa;
struct sockaddr_dl *sdl;
WI_LOCK_DECL();
WI_LOCK(sc);
if (sc->wi_gone) {
WI_UNLOCK(sc);
return;
}
if ((wasenabled = sc->sc_enabled))
wi_stop(ifp, 1);
wi_reset(sc);
/* common 802.11 configuration */
ic->ic_flags &= ~IEEE80211_F_IBSSON;
sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
break;
case IEEE80211_M_IBSS:
wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
ic->ic_flags |= IEEE80211_F_IBSSON;
break;
case IEEE80211_M_AHDEMO:
wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
break;
case IEEE80211_M_HOSTAP:
/*
* For PRISM cards, override the empty SSID, because in
* HostAP mode the controller will lock up otherwise.
*/
if (sc->sc_firmware_type == WI_INTERSIL &&
ic->ic_des_esslen == 0) {
ic->ic_des_essid[0] = ' ';
ic->ic_des_esslen = 1;
}
wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
break;
case IEEE80211_M_MONITOR:
if (sc->sc_firmware_type == WI_LUCENT)
wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
break;
}
/* Intersil interprets this RID as joining ESS even in IBSS mode */
if (sc->sc_firmware_type == WI_LUCENT &&
(ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
else
wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
ic->ic_des_esslen);
wi_write_val(sc, WI_RID_OWN_CHNL,
ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
ifa = ifaddr_byindex(ifp->if_index);
sdl = (struct sockaddr_dl *) ifa->ifa_addr;
IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(sdl));
wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
if (ic->ic_caps & IEEE80211_C_PMGT)
wi_write_val(sc, WI_RID_PM_ENABLED,
(ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
/* not yet common 802.11 configuration */
wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
/* driver specific 802.11 configuration */
if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
if (sc->sc_flags & WI_FLAGS_HAS_MOR)
wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
wi_write_txrate(sc);
wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
sc->sc_firmware_type == WI_INTERSIL) {
wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_bintval);
wi_write_val(sc, WI_RID_BASIC_RATE, 0x03); /* 1, 2 */
wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
wi_write_val(sc, WI_RID_DTIM_PERIOD, 1);
}
/*
* Initialize promisc mode.
* Being in the Host-AP mode causes a great
* deal of pain if primisc mode is set.
* Therefore we avoid confusing the firmware
* and always reset promisc mode in Host-AP
* mode. Host-AP sees all the packets anyway.
*/
if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
(ifp->if_flags & IFF_PROMISC) != 0) {
wi_write_val(sc, WI_RID_PROMISC, 1);
} else {
wi_write_val(sc, WI_RID_PROMISC, 0);
}
/* Configure WEP. */
if (ic->ic_caps & IEEE80211_C_WEP) {
sc->sc_cnfauthmode = ic->ic_bss->ni_authmode;
wi_write_wep(sc);
}
/* Set multicast filter. */
wi_write_multi(sc);
/* Allocate fids for the card */
if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
if (sc->sc_firmware_type == WI_SYMBOL)
sc->sc_buflen = 1585; /* XXX */
for (i = 0; i < sc->sc_ntxbuf; i++) {
error = wi_alloc_fid(sc, sc->sc_buflen,
&sc->sc_txd[i].d_fid);
if (error) {
device_printf(sc->sc_dev,
"tx buffer allocation failed (error %u)\n",
error);
goto out;
}
sc->sc_txd[i].d_len = 0;
}
}
sc->sc_txcur = sc->sc_txnext = 0;
/* Enable desired port */
wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
sc->sc_enabled = 1;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
ic->ic_opmode == IEEE80211_M_IBSS ||
ic->ic_opmode == IEEE80211_M_MONITOR ||
ic->ic_opmode == IEEE80211_M_HOSTAP)
ieee80211_create_ibss(ic, ic->ic_ibss_chan);
/* Enable interrupts */
CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
if (!wasenabled &&
ic->ic_opmode == IEEE80211_M_HOSTAP &&
sc->sc_firmware_type == WI_INTERSIL) {
/* XXX: some card need to be re-enabled for hostap */
wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
}
if (ic->ic_opmode == IEEE80211_M_STA &&
((ic->ic_flags & IEEE80211_F_DESBSSID) ||
ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
memset(&join, 0, sizeof(join));
if (ic->ic_flags & IEEE80211_F_DESBSSID)
IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
join.wi_chan = htole16(
ieee80211_chan2ieee(ic, ic->ic_des_chan));
/* Lucent firmware does not support the JOIN RID. */
if (sc->sc_firmware_type != WI_LUCENT)
wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
}
WI_UNLOCK(sc);
return;
out:
if (error) {
if_printf(ifp, "interface not running\n");
wi_stop(ifp, 1);
}
WI_UNLOCK(sc);
DPRINTF(("wi_init: return %d\n", error));
return;
}
void
wi_stop(struct ifnet *ifp, int disable)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
WI_LOCK_DECL();
WI_LOCK(sc);
DELAY(100000);
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
if (sc->sc_enabled && !sc->wi_gone) {
CSR_WRITE_2(sc, WI_INT_EN, 0);
wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
if (disable) {
#ifdef __NetBSD__
if (sc->sc_disable)
(*sc->sc_disable)(sc);
#endif
sc->sc_enabled = 0;
}
} else if (sc->wi_gone && disable) /* gone --> not enabled */
sc->sc_enabled = 0;
sc->sc_tx_timer = 0;
sc->sc_scan_timer = 0;
sc->sc_false_syns = 0;
sc->sc_naps = 0;
ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
ifp->if_timer = 0;
WI_UNLOCK(sc);
}
static void
wi_start(struct ifnet *ifp)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni;
struct ieee80211_frame *wh;
struct ether_header *eh;
struct mbuf *m0;
struct wi_frame frmhdr;
int cur, fid, off, error;
WI_LOCK_DECL();
WI_LOCK(sc);
if (sc->wi_gone) {
WI_UNLOCK(sc);
return;
}
if (sc->sc_flags & WI_FLAGS_OUTRANGE) {
WI_UNLOCK(sc);
return;
}
memset(&frmhdr, 0, sizeof(frmhdr));
cur = sc->sc_txnext;
for (;;) {
IF_POLL(&ic->ic_mgtq, m0);
if (m0 != NULL) {
if (sc->sc_txd[cur].d_len != 0) {
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
break;
}
IF_DEQUEUE(&ic->ic_mgtq, m0);
/*
* Hack! The referenced node pointer is in the
* rcvif field of the packet header. This is
* placed there by ieee80211_mgmt_output because
* we need to hold the reference with the frame
* and there's no other way (other than packet
* tags which we consider too expensive to use)
* to pass it along.
*/
ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
m0->m_pkthdr.rcvif = NULL;
m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
(caddr_t)&frmhdr.wi_ehdr);
frmhdr.wi_ehdr.ether_type = 0;
wh = mtod(m0, struct ieee80211_frame *);
} else {
if (ic->ic_state != IEEE80211_S_RUN)
break;
IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
if (m0 == NULL)
break;
if (sc->sc_txd[cur].d_len != 0) {
IFQ_DRV_PREPEND(&ifp->if_snd, m0);
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
break;
}
if (m0->m_len < sizeof(struct ether_header) &&
(m0 = m_pullup(m0, sizeof(struct ether_header))) == NULL) {
ifp->if_oerrors++;
continue;
}
eh = mtod(m0, struct ether_header *);
ni = ieee80211_find_txnode(ic, eh->ether_dhost);
if (ni == NULL) {
m_freem(m0);
continue;
}
ifp->if_opackets++;
m_copydata(m0, 0, ETHER_HDR_LEN,
(caddr_t)&frmhdr.wi_ehdr);
#if NBPFILTER > 0
BPF_MTAP(ifp, m0);
#endif
m0 = ieee80211_encap(ic, m0, ni);
if (m0 == NULL) {
ifp->if_oerrors++;
ieee80211_free_node(ni);
continue;
}
wh = mtod(m0, struct ieee80211_frame *);
}
#if NBPFILTER > 0
if (ic->ic_rawbpf)
bpf_mtap(ic->ic_rawbpf, m0);
#endif
frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
/* XXX check key for SWCRYPT instead of using operating mode */
if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
(wh->i_fc[1] & IEEE80211_FC1_WEP)) {
struct ieee80211_key *k;
k = ieee80211_crypto_encap(ic, ni, m0);
if (k == NULL) {
if (ni != NULL)
ieee80211_free_node(ni);
m_freem(m0);
continue;
}
frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
}
#if NBPFILTER > 0
if (sc->sc_drvbpf) {
sc->sc_tx_th.wt_rate =
ni->ni_rates.rs_rates[ni->ni_txrate];
bpf_mtap2(sc->sc_drvbpf,
&sc->sc_tx_th, sc->sc_tx_th_len, m0);
}
#endif
m_copydata(m0, 0, sizeof(struct ieee80211_frame),
(caddr_t)&frmhdr.wi_whdr);
m_adj(m0, sizeof(struct ieee80211_frame));
frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
if (IFF_DUMPPKTS(ifp))
wi_dump_pkt(&frmhdr, NULL, -1);
fid = sc->sc_txd[cur].d_fid;
off = sizeof(frmhdr);
error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
|| wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
m_freem(m0);
if (ni != NULL)
ieee80211_free_node(ni);
if (error) {
ifp->if_oerrors++;
continue;
}
sc->sc_txd[cur].d_len = off;
if (sc->sc_txcur == cur) {
if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
if_printf(ifp, "xmit failed\n");
sc->sc_txd[cur].d_len = 0;
continue;
}
sc->sc_tx_timer = 5;
ifp->if_timer = 1;
}
sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
}
WI_UNLOCK(sc);
}
static int
wi_reset(struct wi_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
#define WI_INIT_TRIES 3
int i;
int error = 0;
int tries;
/* Symbol firmware cannot be initialized more than once */
if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
return (0);
if (sc->sc_firmware_type == WI_SYMBOL)
tries = 1;
else
tries = WI_INIT_TRIES;
for (i = 0; i < tries; i++) {
if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
break;
DELAY(WI_DELAY * 1000);
}
sc->sc_reset = 1;
if (i == tries) {
if_printf(ifp, "init failed\n");
return (error);
}
CSR_WRITE_2(sc, WI_INT_EN, 0);
CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
/* Calibrate timer. */
wi_write_val(sc, WI_RID_TICK_TIME, 8);
return (0);
#undef WI_INIT_TRIES
}
static void
wi_watchdog(struct ifnet *ifp)
{
struct wi_softc *sc = ifp->if_softc;
ifp->if_timer = 0;
if (!sc->sc_enabled)
return;
if (sc->sc_tx_timer) {
if (--sc->sc_tx_timer == 0) {
if_printf(ifp, "device timeout\n");
ifp->if_oerrors++;
wi_init(ifp->if_softc);
return;
}
ifp->if_timer = 1;
}
if (sc->sc_scan_timer) {
if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
sc->sc_firmware_type == WI_INTERSIL) {
DPRINTF(("wi_watchdog: inquire scan\n"));
wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
}
if (sc->sc_scan_timer)
ifp->if_timer = 1;
}
/* TODO: rate control */
ieee80211_watchdog(&sc->sc_ic);
}
static int
wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct ifreq *ifr = (struct ifreq *)data;
struct ieee80211req *ireq;
u_int8_t nodename[IEEE80211_NWID_LEN];
int error = 0;
#if __FreeBSD_version >= 500000
struct thread *td = curthread;
#else
struct proc *td = curproc; /* Little white lie */
#endif
struct wi_req wreq;
WI_LOCK_DECL();
if (sc->wi_gone)
return (ENODEV);
switch (cmd) {
case SIOCSIFFLAGS:
/*
* Can't do promisc and hostap at the same time. If all that's
* changing is the promisc flag, try to short-circuit a call to
* wi_init() by just setting PROMISC in the hardware.
*/
WI_LOCK(sc);
if (ifp->if_flags & IFF_UP) {
if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
ifp->if_drv_flags & IFF_DRV_RUNNING) {
if (ifp->if_flags & IFF_PROMISC &&
!(sc->sc_if_flags & IFF_PROMISC)) {
wi_write_val(sc, WI_RID_PROMISC, 1);
} else if (!(ifp->if_flags & IFF_PROMISC) &&
sc->sc_if_flags & IFF_PROMISC) {
wi_write_val(sc, WI_RID_PROMISC, 0);
} else {
wi_init(sc);
}
} else {
wi_init(sc);
}
} else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
wi_stop(ifp, 1);
}
sc->wi_gone = 0;
}
sc->sc_if_flags = ifp->if_flags;
WI_UNLOCK(sc);
error = 0;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
WI_LOCK(sc);
error = wi_write_multi(sc);
WI_UNLOCK(sc);
break;
case SIOCGIFGENERIC:
WI_LOCK(sc);
error = wi_get_cfg(ifp, cmd, data);
WI_UNLOCK(sc);
break;
case SIOCSIFGENERIC:
error = suser(td);
if (error == 0)
error = wi_set_cfg(ifp, cmd, data);
break;
case SIOCGPRISM2DEBUG:
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
break;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING) ||
sc->sc_firmware_type == WI_LUCENT) {
error = EIO;
break;
}
error = wi_get_debug(sc, &wreq);
if (error == 0)
error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
break;
case SIOCSPRISM2DEBUG:
if ((error = suser(td)))
return (error);
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
break;
WI_LOCK(sc);
error = wi_set_debug(sc, &wreq);
WI_UNLOCK(sc);
break;
case SIOCG80211:
ireq = (struct ieee80211req *) data;
if (ireq->i_type == IEEE80211_IOC_STATIONNAME) {
ireq->i_len = sc->sc_nodelen + 1;
error = copyout(sc->sc_nodename, ireq->i_data,
ireq->i_len);
break;
}
goto ioctl_common;
case SIOCS80211:
ireq = (struct ieee80211req *) data;
if (ireq->i_type == IEEE80211_IOC_STATIONNAME) {
error = suser(td);
if (error)
break;
if (ireq->i_val != 0 ||
ireq->i_len > IEEE80211_NWID_LEN) {
error = EINVAL;
break;
}
memset(nodename, 0, IEEE80211_NWID_LEN);
error = copyin(ireq->i_data, nodename, ireq->i_len);
if (error)
break;
WI_LOCK(sc);
if (sc->sc_enabled) {
error = wi_write_ssid(sc, WI_RID_NODENAME,
nodename, ireq->i_len);
}
if (error == 0) {
memcpy(sc->sc_nodename, nodename,
IEEE80211_NWID_LEN);
sc->sc_nodelen = ireq->i_len;
}
WI_UNLOCK(sc);
break;
}
goto ioctl_common;
default:
ioctl_common:
WI_LOCK(sc);
error = ieee80211_ioctl(ic, cmd, data);
if (error == ENETRESET) {
if (sc->sc_enabled)
wi_init(sc); /* XXX no error return */
error = 0;
}
WI_UNLOCK(sc);
break;
}
return (error);
}
static int
wi_media_change(struct ifnet *ifp)
{
struct wi_softc *sc = ifp->if_softc;
int error;
error = ieee80211_media_change(ifp);
if (error == ENETRESET) {
if (sc->sc_enabled)
wi_init(sc); /* XXX no error return */
error = 0;
}
return error;
}
static void
wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
u_int16_t val;
int rate, len;
if (sc->wi_gone) { /* hardware gone (e.g. ejected) */
imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
imr->ifm_status = 0;
return;
}
imr->ifm_status = IFM_AVALID;
imr->ifm_active = IFM_IEEE80211;
if (!sc->sc_enabled) { /* port !enabled, have no status */
imr->ifm_active |= IFM_NONE;
imr->ifm_status = IFM_AVALID;
return;
}
if (ic->ic_state == IEEE80211_S_RUN &&
(sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
imr->ifm_status |= IFM_ACTIVE;
len = sizeof(val);
if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
len == sizeof(val)) {
/* convert to 802.11 rate */
val = le16toh(val);
rate = val * 2;
if (sc->sc_firmware_type == WI_LUCENT) {
if (rate == 10)
rate = 11; /* 5.5Mbps */
} else {
if (rate == 4*2)
rate = 11; /* 5.5Mbps */
else if (rate == 8*2)
rate = 22; /* 11Mbps */
}
} else
rate = 0;
imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
break;
case IEEE80211_M_IBSS:
imr->ifm_active |= IFM_IEEE80211_ADHOC;
break;
case IEEE80211_M_AHDEMO:
imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
break;
case IEEE80211_M_HOSTAP:
imr->ifm_active |= IFM_IEEE80211_HOSTAP;
break;
case IEEE80211_M_MONITOR:
imr->ifm_active |= IFM_IEEE80211_MONITOR;
break;
}
}
static void
wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
{
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_node *ni = ic->ic_bss;
struct ifnet *ifp = sc->sc_ifp;
if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
return;
DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
/* In promiscuous mode, the BSSID field is not a reliable
* indicator of the firmware's BSSID. Damp spurious
* change-of-BSSID indications.
*/
if ((ifp->if_flags & IFF_PROMISC) != 0 &&
!ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
WI_MAX_FALSE_SYNS))
return;
sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
/*
* XXX hack; we should create a new node with the new bssid
* and replace the existing ic_bss with it but since we don't
* process management frames to collect state we cheat by
* reusing the existing node as we know wi_newstate will be
* called and it will overwrite the node state.
*/
ieee80211_sta_join(ic, ieee80211_ref_node(ni));
}
static void
wi_rx_monitor(struct wi_softc *sc, int fid)
{
struct ifnet *ifp = sc->sc_ifp;
struct wi_frame *rx_frame;
struct mbuf *m;
int datlen, hdrlen;
/* first allocate mbuf for packet storage */
m = m_getcl(M_DONTWAIT, MT_DATA, 0);
if (m == NULL) {
ifp->if_ierrors++;
return;
}
m->m_pkthdr.rcvif = ifp;
/* now read wi_frame first so we know how much data to read */
if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
ifp->if_ierrors++;
goto done;
}
rx_frame = mtod(m, struct wi_frame *);
switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
case 7:
switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
case IEEE80211_FC0_TYPE_DATA:
hdrlen = WI_DATA_HDRLEN;
datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
break;
case IEEE80211_FC0_TYPE_MGT:
hdrlen = WI_MGMT_HDRLEN;
datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
break;
case IEEE80211_FC0_TYPE_CTL:
/*
* prism2 cards don't pass control packets
* down properly or consistently, so we'll only
* pass down the header.
*/
hdrlen = WI_CTL_HDRLEN;
datlen = 0;
break;
default:
if_printf(ifp, "received packet of unknown type "
"on port 7\n");
ifp->if_ierrors++;
goto done;
}
break;
case 0:
hdrlen = WI_DATA_HDRLEN;
datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
break;
default:
if_printf(ifp, "received packet on invalid "
"port (wi_status=0x%x)\n", rx_frame->wi_status);
ifp->if_ierrors++;
goto done;
}
if (hdrlen + datlen + 2 > MCLBYTES) {
if_printf(ifp, "oversized packet received "
"(wi_dat_len=%d, wi_status=0x%x)\n",
datlen, rx_frame->wi_status);
ifp->if_ierrors++;
goto done;
}
if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
datlen + 2) == 0) {
m->m_pkthdr.len = m->m_len = hdrlen + datlen;
ifp->if_ipackets++;
BPF_MTAP(ifp, m); /* Handle BPF listeners. */
} else
ifp->if_ierrors++;
done:
m_freem(m);
}
static void
wi_rx_intr(struct wi_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ifnet *ifp = sc->sc_ifp;
struct wi_frame frmhdr;
struct mbuf *m;
struct ieee80211_frame *wh;
struct ieee80211_node *ni;
int fid, len, off, rssi;
u_int8_t dir;
u_int16_t status;
u_int32_t rstamp;
fid = CSR_READ_2(sc, WI_RX_FID);
if (sc->wi_debug.wi_monitor) {
/*
* If we are in monitor mode just
* read the data from the device.
*/
wi_rx_monitor(sc, fid);
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
return;
}
/* First read in the frame header */
if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
return;
}
if (IFF_DUMPPKTS(ifp))
wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
/*
* Drop undecryptable or packets with receive errors here
*/
status = le16toh(frmhdr.wi_status);
if (status & WI_STAT_ERRSTAT) {
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
return;
}
rssi = frmhdr.wi_rx_signal;
rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
le16toh(frmhdr.wi_rx_tstamp1);
len = le16toh(frmhdr.wi_dat_len);
off = ALIGN(sizeof(struct ieee80211_frame));
/*
* Sometimes the PRISM2.x returns bogusly large frames. Except
* in monitor mode, just throw them away.
*/
if (off + len > MCLBYTES) {
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: oversized packet\n"));
return;
} else
len = 0;
}
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: MGET failed\n"));
return;
}
if (off + len > MHLEN) {
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
m_freem(m);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: MCLGET failed\n"));
return;
}
}
m->m_data += off - sizeof(struct ieee80211_frame);
memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
wi_read_bap(sc, fid, sizeof(frmhdr),
m->m_data + sizeof(struct ieee80211_frame), len);
m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
m->m_pkthdr.rcvif = ifp;
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
wh = mtod(m, struct ieee80211_frame *);
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
/*
* WEP is decrypted by hardware and the IV
* is stripped. Clear WEP bit so we don't
* try to process it in ieee80211_input.
* XXX fix for TKIP, et. al.
*/
wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
}
#if NBPFILTER > 0
if (sc->sc_drvbpf) {
/* XXX replace divide by table */
sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
sc->sc_rx_th.wr_flags = 0;
if (frmhdr.wi_status & WI_STAT_PCF)
sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
/* XXX IEEE80211_RADIOTAP_F_WEP */
bpf_mtap2(sc->sc_drvbpf,
&sc->sc_rx_th, sc->sc_rx_th_len, m);
}
#endif
/* synchronize driver's BSSID with firmware's BSSID */
dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
wi_sync_bssid(sc, wh->i_addr3);
/*
* Locate the node for sender, track state, and
* then pass this node (referenced) up to the 802.11
* layer for its use.
*/
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
/*
* Send frame up for processing.
*/
ieee80211_input(ic, m, ni, rssi, rstamp);
/*
* The frame may have caused the node to be marked for
* reclamation (e.g. in response to a DEAUTH message)
* so use free_node here instead of unref_node.
*/
ieee80211_free_node(ni);
}
static void
wi_tx_ex_intr(struct wi_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
struct wi_frame frmhdr;
int fid;
fid = CSR_READ_2(sc, WI_TX_CMP_FID);
/* Read in the frame header */
if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
u_int16_t status = le16toh(frmhdr.wi_status);
/*
* Spontaneous station disconnects appear as xmit
* errors. Don't announce them and/or count them
* as an output error.
*/
if ((status & WI_TXSTAT_DISCONNECT) == 0) {
if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
if_printf(ifp, "tx failed");
if (status & WI_TXSTAT_RET_ERR)
printf(", retry limit exceeded");
if (status & WI_TXSTAT_AGED_ERR)
printf(", max transmit lifetime exceeded");
if (status & WI_TXSTAT_DISCONNECT)
printf(", port disconnected");
if (status & WI_TXSTAT_FORM_ERR)
printf(", invalid format (data len %u src %6D)",
le16toh(frmhdr.wi_dat_len),
frmhdr.wi_ehdr.ether_shost, ":");
if (status & ~0xf)
printf(", status=0x%x", status);
printf("\n");
}
ifp->if_oerrors++;
} else {
DPRINTF(("port disconnected\n"));
ifp->if_collisions++; /* XXX */
}
} else
DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
}
static void
wi_tx_intr(struct wi_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
int fid, cur;
if (sc->wi_gone)
return;
fid = CSR_READ_2(sc, WI_ALLOC_FID);
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
cur = sc->sc_txcur;
if (sc->sc_txd[cur].d_fid != fid) {
if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
return;
}
sc->sc_tx_timer = 0;
sc->sc_txd[cur].d_len = 0;
sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
if (sc->sc_txd[cur].d_len == 0)
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
else {
if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
0, 0)) {
if_printf(ifp, "xmit failed\n");
sc->sc_txd[cur].d_len = 0;
} else {
sc->sc_tx_timer = 5;
ifp->if_timer = 1;
}
}
}
static void
wi_info_intr(struct wi_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
struct ifnet *ifp = sc->sc_ifp;
int i, fid, len, off;
u_int16_t ltbuf[2];
u_int16_t stat;
u_int32_t *ptr;
fid = CSR_READ_2(sc, WI_INFO_FID);
wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
switch (le16toh(ltbuf[1])) {
case WI_INFO_LINK_STAT:
wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
switch (le16toh(stat)) {
case WI_INFO_LINK_STAT_CONNECTED:
sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
if (ic->ic_state == IEEE80211_S_RUN &&
ic->ic_opmode != IEEE80211_M_IBSS)
break;
/* FALLTHROUGH */
case WI_INFO_LINK_STAT_AP_CHG:
ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
break;
case WI_INFO_LINK_STAT_AP_INR:
sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
break;
case WI_INFO_LINK_STAT_AP_OOR:
if (sc->sc_firmware_type == WI_SYMBOL &&
sc->sc_scan_timer > 0) {
if (wi_cmd(sc, WI_CMD_INQUIRE,
WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
sc->sc_scan_timer = 0;
break;
}
if (ic->ic_opmode == IEEE80211_M_STA)
sc->sc_flags |= WI_FLAGS_OUTRANGE;
break;
case WI_INFO_LINK_STAT_DISCONNECTED:
case WI_INFO_LINK_STAT_ASSOC_FAILED:
if (ic->ic_opmode == IEEE80211_M_STA)
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
break;
}
break;
case WI_INFO_COUNTERS:
/* some card versions have a larger stats structure */
len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
ptr = (u_int32_t *)&sc->sc_stats;
off = sizeof(ltbuf);
for (i = 0; i < len; i++, off += 2, ptr++) {
wi_read_bap(sc, fid, off, &stat, sizeof(stat));
#ifdef WI_HERMES_STATS_WAR
if (stat & 0xf000)
stat = ~stat;
#endif
*ptr += stat;
}
ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
sc->sc_stats.wi_tx_multi_retries +
sc->sc_stats.wi_tx_retry_limit;
break;
case WI_INFO_SCAN_RESULTS:
case WI_INFO_HOST_SCAN_RESULTS:
wi_scan_result(sc, fid, le16toh(ltbuf[0]));
break;
default:
DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
le16toh(ltbuf[1]), le16toh(ltbuf[0])));
break;
}
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
}
static int
wi_write_multi(struct wi_softc *sc)
{
struct ifnet *ifp = sc->sc_ifp;
int n;
struct ifmultiaddr *ifma;
struct wi_mcast mlist;
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
allmulti:
memset(&mlist, 0, sizeof(mlist));
return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
sizeof(mlist));
}
n = 0;
IF_ADDR_LOCK(ifp);
#if __FreeBSD_version < 500000
LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
#else
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
#endif
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
if (n >= 16)
goto allmulti;
IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
n++;
}
IF_ADDR_UNLOCK(ifp);
return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
IEEE80211_ADDR_LEN * n);
}
static void
wi_read_nicid(struct wi_softc *sc)
{
struct wi_card_ident *id;
char *p;
int len;
u_int16_t ver[4];
/* getting chip identity */
memset(ver, 0, sizeof(ver));
len = sizeof(ver);
wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
device_printf(sc->sc_dev, "using ");
sc->sc_firmware_type = WI_NOTYPE;
for (id = wi_card_ident; id->card_name != NULL; id++) {
if (le16toh(ver[0]) == id->card_id) {
printf("%s", id->card_name);
sc->sc_firmware_type = id->firm_type;
break;
}
}
if (sc->sc_firmware_type == WI_NOTYPE) {
if (le16toh(ver[0]) & 0x8000) {
printf("Unknown PRISM2 chip");
sc->sc_firmware_type = WI_INTERSIL;
} else {
printf("Unknown Lucent chip");
sc->sc_firmware_type = WI_LUCENT;
}
}
/* get primary firmware version (Only Prism chips) */
if (sc->sc_firmware_type != WI_LUCENT) {
memset(ver, 0, sizeof(ver));
len = sizeof(ver);
wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
le16toh(ver[3]) * 100 + le16toh(ver[1]);
}
/* get station firmware version */
memset(ver, 0, sizeof(ver));
len = sizeof(ver);
wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
le16toh(ver[3]) * 100 + le16toh(ver[1]);
if (sc->sc_firmware_type == WI_INTERSIL &&
(sc->sc_sta_firmware_ver == 10102 ||
sc->sc_sta_firmware_ver == 20102)) {
char ident[12];
memset(ident, 0, sizeof(ident));
len = sizeof(ident);
/* value should be the format like "V2.00-11" */
if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
*(p = (char *)ident) >= 'A' &&
p[2] == '.' && p[5] == '-' && p[8] == '\0') {
sc->sc_firmware_type = WI_SYMBOL;
sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
(p[3] - '0') * 1000 + (p[4] - '0') * 100 +
(p[6] - '0') * 10 + (p[7] - '0');
}
}
printf("\n");
device_printf(sc->sc_dev, "%s Firmware: ",
sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
(sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
if (sc->sc_firmware_type != WI_LUCENT) /* XXX */
printf("Primary (%u.%u.%u), ",
sc->sc_pri_firmware_ver / 10000,
(sc->sc_pri_firmware_ver % 10000) / 100,
sc->sc_pri_firmware_ver % 100);
printf("Station (%u.%u.%u)\n",
sc->sc_sta_firmware_ver / 10000,
(sc->sc_sta_firmware_ver % 10000) / 100,
sc->sc_sta_firmware_ver % 100);
}
static int
wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
{
struct wi_ssid ssid;
if (buflen > IEEE80211_NWID_LEN)
return ENOBUFS;
memset(&ssid, 0, sizeof(ssid));
ssid.wi_len = htole16(buflen);
memcpy(ssid.wi_ssid, buf, buflen);
return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
}
static int
wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_req wreq;
struct wi_scan_res *res;
size_t reslen;
int len, n, error, mif, val, off, i;
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
len = (wreq.wi_len - 1) * 2;
if (len < sizeof(u_int16_t))
return ENOSPC;
if (len > sizeof(wreq.wi_val))
len = sizeof(wreq.wi_val);
switch (wreq.wi_type) {
case WI_RID_IFACE_STATS:
memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
if (len < sizeof(sc->sc_stats))
error = ENOSPC;
else
len = sizeof(sc->sc_stats);
break;
case WI_RID_ENCRYPTION:
case WI_RID_TX_CRYPT_KEY:
case WI_RID_DEFLT_CRYPT_KEYS:
case WI_RID_TX_RATE:
return ieee80211_cfgget(ic, cmd, data);
case WI_RID_MICROWAVE_OVEN:
if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
len = sizeof(u_int16_t);
break;
case WI_RID_DBM_ADJUST:
if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
len = sizeof(u_int16_t);
break;
case WI_RID_ROAMING_MODE:
if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
len = sizeof(u_int16_t);
break;
case WI_RID_SYSTEM_SCALE:
if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
wreq.wi_val[0] = htole16(sc->sc_system_scale);
len = sizeof(u_int16_t);
break;
case WI_RID_FRAG_THRESH:
if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
len = sizeof(u_int16_t);
break;
case WI_RID_READ_APS:
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
return ieee80211_cfgget(ic, cmd, data);
if (sc->sc_scan_timer > 0) {
error = EINPROGRESS;
break;
}
n = sc->sc_naps;
if (len < sizeof(n)) {
error = ENOSPC;
break;
}
if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
len = sizeof(n) + sizeof(struct wi_apinfo) * n;
memcpy(wreq.wi_val, &n, sizeof(n));
memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
sizeof(struct wi_apinfo) * n);
break;
case WI_RID_PRISM2:
wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
len = sizeof(u_int16_t);
break;
case WI_RID_MIF:
mif = wreq.wi_val[0];
error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
val = CSR_READ_2(sc, WI_RESP0);
wreq.wi_val[0] = val;
len = sizeof(u_int16_t);
break;
case WI_RID_ZERO_CACHE:
case WI_RID_PROCFRAME: /* ignore for compatibility */
/* XXX ??? */
break;
case WI_RID_READ_CACHE:
return ieee80211_cfgget(ic, cmd, data);
case WI_RID_SCAN_RES: /* compatibility interface */
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
return ieee80211_cfgget(ic, cmd, data);
if (sc->sc_scan_timer > 0) {
error = EINPROGRESS;
break;
}
n = sc->sc_naps;
if (sc->sc_firmware_type == WI_LUCENT) {
off = 0;
reslen = WI_WAVELAN_RES_SIZE;
} else {
off = sizeof(struct wi_scan_p2_hdr);
reslen = WI_PRISM2_RES_SIZE;
}
if (len < off + reslen * n)
n = (len - off) / reslen;
len = off + reslen * n;
if (off != 0) {
struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
/*
* Prepend Prism-specific header.
*/
if (len < sizeof(struct wi_scan_p2_hdr)) {
error = ENOSPC;
break;
}
p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
p2->wi_rsvd = 0;
p2->wi_reason = n; /* XXX */
}
for (i = 0; i < n; i++, off += reslen) {
const struct wi_apinfo *ap = &sc->sc_aps[i];
res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
res->wi_chan = ap->channel;
res->wi_noise = ap->noise;
res->wi_signal = ap->signal;
IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
res->wi_interval = ap->interval;
res->wi_capinfo = ap->capinfo;
res->wi_ssid_len = ap->namelen;
memcpy(res->wi_ssid, ap->name,
IEEE80211_NWID_LEN);
if (sc->sc_firmware_type != WI_LUCENT) {
/* XXX not saved from Prism cards */
memset(res->wi_srates, 0,
sizeof(res->wi_srates));
res->wi_rate = ap->rate;
res->wi_rsvd = 0;
}
}
break;
default:
if (sc->sc_enabled) {
error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
&len);
break;
}
switch (wreq.wi_type) {
case WI_RID_MAX_DATALEN:
wreq.wi_val[0] = htole16(sc->sc_max_datalen);
len = sizeof(u_int16_t);
break;
case WI_RID_RTS_THRESH:
wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
len = sizeof(u_int16_t);
break;
case WI_RID_CNFAUTHMODE:
wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
len = sizeof(u_int16_t);
break;
case WI_RID_NODENAME:
if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
error = ENOSPC;
break;
}
len = sc->sc_nodelen + sizeof(u_int16_t);
wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
memcpy(&wreq.wi_val[1], sc->sc_nodename,
sc->sc_nodelen);
break;
default:
return ieee80211_cfgget(ic, cmd, data);
}
break;
}
if (error)
return error;
wreq.wi_len = (len + 1) / 2 + 1;
return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
}
static int
wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct wi_softc *sc = ifp->if_softc;
struct ieee80211com *ic = &sc->sc_ic;
struct ifreq *ifr = (struct ifreq *)data;
struct wi_req wreq;
struct mbuf *m;
int i, len, error, mif, val;
struct ieee80211_rateset *rs;
WI_LOCK_DECL();
error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
if (error)
return error;
len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
switch (wreq.wi_type) {
case WI_RID_DBM_ADJUST:
return ENODEV;
case WI_RID_NODENAME:
if (le16toh(wreq.wi_val[0]) * 2 > len ||
le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
error = ENOSPC;
break;
}
WI_LOCK(sc);
if (sc->sc_enabled)
error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
len);
if (error == 0) {
sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
memcpy(sc->sc_nodename, &wreq.wi_val[1],
sc->sc_nodelen);
}
WI_UNLOCK(sc);
break;
case WI_RID_MICROWAVE_OVEN:
case WI_RID_ROAMING_MODE:
case WI_RID_SYSTEM_SCALE:
case WI_RID_FRAG_THRESH:
/* XXX unlocked reads */
if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
(sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
break;
if (wreq.wi_type == WI_RID_ROAMING_MODE &&
(sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
break;
if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
(sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
break;
if (wreq.wi_type == WI_RID_FRAG_THRESH &&
(sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
break;
/* FALLTHROUGH */
case WI_RID_RTS_THRESH:
case WI_RID_CNFAUTHMODE:
case WI_RID_MAX_DATALEN:
WI_LOCK(sc);
if (sc->sc_enabled) {
error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
sizeof(u_int16_t));
if (error != 0) {
WI_UNLOCK(sc);
break;
}
}
switch (wreq.wi_type) {
case WI_RID_FRAG_THRESH:
ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
break;
case WI_RID_RTS_THRESH:
ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
break;
case WI_RID_MICROWAVE_OVEN:
sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
break;
case WI_RID_ROAMING_MODE:
sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
break;
case WI_RID_SYSTEM_SCALE:
sc->sc_system_scale = le16toh(wreq.wi_val[0]);
break;
case WI_RID_CNFAUTHMODE:
sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
break;
case WI_RID_MAX_DATALEN:
sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
break;
}
WI_UNLOCK(sc);
break;
case WI_RID_TX_RATE:
WI_LOCK(sc);
switch (le16toh(wreq.wi_val[0])) {
case 3:
ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
break;
default:
rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
for (i = 0; i < rs->rs_nrates; i++) {
if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
/ 2 == le16toh(wreq.wi_val[0]))
break;
}
if (i == rs->rs_nrates) {
WI_UNLOCK(sc);
return EINVAL;
}
ic->ic_fixed_rate = i;
}
if (sc->sc_enabled)
error = wi_write_txrate(sc);
WI_UNLOCK(sc);
break;
case WI_RID_SCAN_APS:
WI_LOCK(sc);
if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
error = wi_scan_ap(sc, 0x3fff, 0x000f);
WI_UNLOCK(sc);
break;
case WI_RID_SCAN_REQ: /* compatibility interface */
WI_LOCK(sc);
if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
WI_UNLOCK(sc);
break;
case WI_RID_MGMT_XMIT:
WI_LOCK(sc);
if (!sc->sc_enabled)
error = ENETDOWN;
else if (ic->ic_mgtq.ifq_len > 5)
error = EAGAIN;
else {
/* NB: m_devget uses M_DONTWAIT so can hold the lock */
/* XXX wi_len looks in u_int8_t, not in u_int16_t */
m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0,
ifp, NULL);
if (m != NULL)
IF_ENQUEUE(&ic->ic_mgtq, m);
else
error = ENOMEM;
}
WI_UNLOCK(sc);
break;
case WI_RID_MIF:
mif = wreq.wi_val[0];
val = wreq.wi_val[1];
WI_LOCK(sc);
error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
WI_UNLOCK(sc);
break;
case WI_RID_PROCFRAME: /* ignore for compatibility */
break;
case WI_RID_OWN_SSID:
if (le16toh(wreq.wi_val[0]) * 2 > len ||
le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
error = ENOSPC;
break;
}
WI_LOCK(sc);
memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
if (sc->sc_enabled)
wi_init(sc); /* XXX no error return */
WI_UNLOCK(sc);
break;
default:
WI_LOCK(sc);
if (sc->sc_enabled)
error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
len);
if (error == 0) {
/* XXX ieee80211_cfgset does a copyin */
error = ieee80211_cfgset(ic, cmd, data);
if (error == ENETRESET) {
if (sc->sc_enabled)
wi_init(sc);
error = 0;
}
}
WI_UNLOCK(sc);
break;
}
return error;
}
static int
wi_write_txrate(struct wi_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
int i;
u_int16_t rate;
if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
rate = 0; /* auto */
else
rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
IEEE80211_RATE_VAL) / 2;
/* rate: 0, 1, 2, 5, 11 */
switch (sc->sc_firmware_type) {
case WI_LUCENT:
switch (rate) {
case 0: /* auto == 11mbps auto */
rate = 3;
break;
/* case 1, 2 map to 1, 2*/
case 5: /* 5.5Mbps -> 4 */
rate = 4;
break;
case 11: /* 11mbps -> 5 */
rate = 5;
break;
default:
break;
}
break;
default:
/* Choose a bit according to this table.
*
* bit | data rate
* ----+-------------------
* 0 | 1Mbps
* 1 | 2Mbps
* 2 | 5.5Mbps
* 3 | 11Mbps
*/
for (i = 8; i > 0; i >>= 1) {
if (rate >= i)
break;
}
if (i == 0)
rate = 0xf; /* auto */
else
rate = i;
break;
}
return wi_write_val(sc, WI_RID_TX_RATE, rate);
}
static int
wi_write_wep(struct wi_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
int error = 0;
int i, keylen;
u_int16_t val;
struct wi_key wkey[IEEE80211_WEP_NKID];
switch (sc->sc_firmware_type) {
case WI_LUCENT:
val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
if (error)
break;
if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
break;
error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey);
if (error)
break;
memset(wkey, 0, sizeof(wkey));
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
keylen = ic->ic_nw_keys[i].wk_keylen;
wkey[i].wi_keylen = htole16(keylen);
memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
keylen);
}
error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
wkey, sizeof(wkey));
break;
case WI_INTERSIL:
case WI_SYMBOL:
if (ic->ic_flags & IEEE80211_F_PRIVACY) {
/*
* ONLY HWB3163 EVAL-CARD Firmware version
* less than 0.8 variant2
*
* If promiscuous mode disable, Prism2 chip
* does not work with WEP .
* It is under investigation for details.
* (ichiro@netbsd.org)
*/
if (sc->sc_firmware_type == WI_INTERSIL &&
sc->sc_sta_firmware_ver < 802 ) {
/* firm ver < 0.8 variant 2 */
wi_write_val(sc, WI_RID_PROMISC, 1);
}
wi_write_val(sc, WI_RID_CNFAUTHMODE,
sc->sc_cnfauthmode);
val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
/*
* Encryption firmware has a bug for HostAP mode.
*/
if (sc->sc_firmware_type == WI_INTERSIL &&
ic->ic_opmode == IEEE80211_M_HOSTAP)
val |= HOST_ENCRYPT;
} else {
wi_write_val(sc, WI_RID_CNFAUTHMODE,
IEEE80211_AUTH_OPEN);
val = HOST_ENCRYPT | HOST_DECRYPT;
}
error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
if (error)
break;
if ((val & PRIVACY_INVOKED) == 0)
break;
error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
ic->ic_def_txkey);
if (error)
break;
if (val & HOST_DECRYPT)
break;
/*
* It seems that the firmware accept 104bit key only if
* all the keys have 104bit length. We get the length of
* the transmit key and use it for all other keys.
* Perhaps we should use software WEP for such situation.
*/
if (ic->ic_def_txkey != IEEE80211_KEYIX_NONE)
keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen;
else /* XXX should not hapen */
keylen = IEEE80211_WEP_KEYLEN;
if (keylen > IEEE80211_WEP_KEYLEN)
keylen = 13; /* 104bit keys */
else
keylen = IEEE80211_WEP_KEYLEN;
for (i = 0; i < IEEE80211_WEP_NKID; i++) {
error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
ic->ic_nw_keys[i].wk_key, keylen);
if (error)
break;
}
break;
}
return error;
}
static int
wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
{
int i, s = 0;
if (sc->wi_gone)
return (ENODEV);
/* wait for the busy bit to clear */
for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */
if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
break;
DELAY(1*1000); /* 1ms */
}
if (i == 0) {
device_printf(sc->sc_dev, "wi_cmd: busy bit won't clear.\n" );
sc->wi_gone = 1;
return(ETIMEDOUT);
}
CSR_WRITE_2(sc, WI_PARAM0, val0);
CSR_WRITE_2(sc, WI_PARAM1, val1);
CSR_WRITE_2(sc, WI_PARAM2, val2);
CSR_WRITE_2(sc, WI_COMMAND, cmd);
if (cmd == WI_CMD_INI) {
/* XXX: should sleep here. */
DELAY(100*1000); /* 100ms delay for init */
}
for (i = 0; i < WI_TIMEOUT; i++) {
/*
* Wait for 'command complete' bit to be
* set in the event status register.
*/
s = CSR_READ_2(sc, WI_EVENT_STAT);
if (s & WI_EV_CMD) {
/* Ack the event and read result code. */
s = CSR_READ_2(sc, WI_STATUS);
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
if (s & WI_STAT_CMD_RESULT) {
return(EIO);
}
break;
}
DELAY(WI_DELAY);
}
if (i == WI_TIMEOUT) {
device_printf(sc->sc_dev,
"timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
if (s == 0xffff)
sc->wi_gone = 1;
return(ETIMEDOUT);
}
return (0);
}
static int
wi_seek_bap(struct wi_softc *sc, int id, int off)
{
int i, status;
CSR_WRITE_2(sc, WI_SEL0, id);
CSR_WRITE_2(sc, WI_OFF0, off);
for (i = 0; ; i++) {
status = CSR_READ_2(sc, WI_OFF0);
if ((status & WI_OFF_BUSY) == 0)
break;
if (i == WI_TIMEOUT) {
device_printf(sc->sc_dev, "timeout in wi_seek to %x/%x\n",
id, off);
sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
if (status == 0xffff)
sc->wi_gone = 1;
return ETIMEDOUT;
}
DELAY(1);
}
if (status & WI_OFF_ERR) {
device_printf(sc->sc_dev, "failed in wi_seek to %x/%x\n", id, off);
sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
return EIO;
}
sc->sc_bap_id = id;
sc->sc_bap_off = off;
return 0;
}
static int
wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
{
u_int16_t *ptr;
int i, error, cnt;
if (buflen == 0)
return 0;
if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
if ((error = wi_seek_bap(sc, id, off)) != 0)
return error;
}
cnt = (buflen + 1) / 2;
ptr = (u_int16_t *)buf;
for (i = 0; i < cnt; i++)
*ptr++ = CSR_READ_2(sc, WI_DATA0);
sc->sc_bap_off += cnt * 2;
return 0;
}
static int
wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
{
u_int16_t *ptr;
int i, error, cnt;
if (buflen == 0)
return 0;
#ifdef WI_HERMES_AUTOINC_WAR
again:
#endif
if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
if ((error = wi_seek_bap(sc, id, off)) != 0)
return error;
}
cnt = (buflen + 1) / 2;
ptr = (u_int16_t *)buf;
for (i = 0; i < cnt; i++)
CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
sc->sc_bap_off += cnt * 2;
#ifdef WI_HERMES_AUTOINC_WAR
/*
* According to the comments in the HCF Light code, there is a bug
* in the Hermes (or possibly in certain Hermes firmware revisions)
* where the chip's internal autoincrement counter gets thrown off
* during data writes: the autoincrement is missed, causing one
* data word to be overwritten and subsequent words to be written to
* the wrong memory locations. The end result is that we could end
* up transmitting bogus frames without realizing it. The workaround
* for this is to write a couple of extra guard words after the end
* of the transfer, then attempt to read then back. If we fail to
* locate the guard words where we expect them, we preform the
* transfer over again.
*/
if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
CSR_WRITE_2(sc, WI_DATA0, 0x1234);
CSR_WRITE_2(sc, WI_DATA0, 0x5678);
wi_seek_bap(sc, id, sc->sc_bap_off);
sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
CSR_READ_2(sc, WI_DATA0) != 0x5678) {
device_printf(sc->sc_dev,
"detect auto increment bug, try again\n");
goto again;
}
}
#endif
return 0;
}
static int
wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
{
int error, len;
struct mbuf *m;
for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
if (m->m_len == 0)
continue;
len = min(m->m_len, totlen);
if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
totlen);
}
if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
return error;
off += m->m_len;
totlen -= len;
}
return 0;
}
static int
wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
{
int i;
if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
device_printf(sc->sc_dev, "failed to allocate %d bytes on NIC\n",
len);
return ENOMEM;
}
for (i = 0; i < WI_TIMEOUT; i++) {
if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
break;
DELAY(1);
}
if (i == WI_TIMEOUT) {
device_printf(sc->sc_dev, "timeout in alloc\n");
return ETIMEDOUT;
}
*idp = CSR_READ_2(sc, WI_ALLOC_FID);
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
return 0;
}
static int
wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
{
int error, len;
u_int16_t ltbuf[2];
/* Tell the NIC to enter record read mode. */
error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
if (error)
return error;
error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
if (error)
return error;
if (le16toh(ltbuf[1]) != rid) {
device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
rid, le16toh(ltbuf[1]));
return EIO;
}
len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */
if (*buflenp < len) {
device_printf(sc->sc_dev, "record buffer is too small, "
"rid=%x, size=%d, len=%d\n",
rid, *buflenp, len);
return ENOSPC;
}
*buflenp = len;
return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
}
static int
wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
{
int error;
u_int16_t ltbuf[2];
ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */
ltbuf[1] = htole16(rid);
error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
if (error)
return error;
error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
if (error)
return error;
return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
}
static int
wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
{
struct ifnet *ifp = ic->ic_ifp;
struct wi_softc *sc = ifp->if_softc;
struct ieee80211_node *ni;
int buflen;
u_int16_t val;
struct wi_ssid ssid;
u_int8_t old_bssid[IEEE80211_ADDR_LEN];
DPRINTF(("%s: %s -> %s\n", __func__,
ieee80211_state_name[ic->ic_state],
ieee80211_state_name[nstate]));
/*
* Internal to the driver the INIT and RUN states are used
* so bypass the net80211 state machine for other states.
* Beware however that this requires use to net80211 state
* management that otherwise would be handled for us.
*/
switch (nstate) {
case IEEE80211_S_INIT:
sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
return (*sc->sc_newstate)(ic, nstate, arg);
case IEEE80211_S_SCAN:
case IEEE80211_S_AUTH:
case IEEE80211_S_ASSOC:
ic->ic_state = nstate; /* NB: skip normal ieee80211 handling */
break;
case IEEE80211_S_RUN:
ni = ic->ic_bss;
sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
buflen = IEEE80211_ADDR_LEN;
IEEE80211_ADDR_COPY(old_bssid, ni->ni_bssid);
wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
buflen = sizeof(val);
wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
/* XXX validate channel */
ni->ni_chan = &ic->ic_channels[le16toh(val)];
ic->ic_curchan = ni->ni_chan;
ic->ic_ibss_chan = ni->ni_chan;
#if NBPFILTER > 0
sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
htole16(ni->ni_chan->ic_freq);
sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
htole16(ni->ni_chan->ic_flags);
#endif
if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
/*
* XXX hack; unceremoniously clear
* IEEE80211_F_DROPUNENC when operating with
* wep enabled so we don't drop unencoded frames
* at the 802.11 layer. This is necessary because
* we must strip the WEP bit from the 802.11 header
* before passing frames to ieee80211_input because
* the card has already stripped the WEP crypto
* header from the packet.
*/
if (ic->ic_flags & IEEE80211_F_PRIVACY)
ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
/* XXX check return value */
buflen = sizeof(ssid);
wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
ni->ni_esslen = le16toh(ssid.wi_len);
if (ni->ni_esslen > IEEE80211_NWID_LEN)
ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/
memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
}
return (*sc->sc_newstate)(ic, nstate, arg);
}
return 0;
}
static int
wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
{
int error = 0;
u_int16_t val[2];
if (!sc->sc_enabled)
return ENXIO;
switch (sc->sc_firmware_type) {
case WI_LUCENT:
(void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
break;
case WI_INTERSIL:
val[0] = htole16(chanmask); /* channel */
val[1] = htole16(txrate); /* tx rate */
error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
break;
case WI_SYMBOL:
/*
* XXX only supported on 3.x ?
*/
val[0] = BSCAN_BCAST | BSCAN_ONETIME;
error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
val, sizeof(val[0]));
break;
}
if (error == 0) {
sc->sc_scan_timer = WI_SCAN_WAIT;
sc->sc_ifp->if_timer = 1;
DPRINTF(("wi_scan_ap: start scanning, "
"chamask 0x%x txrate 0x%x\n", chanmask, txrate));
}
return error;
}
static void
wi_scan_result(struct wi_softc *sc, int fid, int cnt)
{
#define N(a) (sizeof (a) / sizeof (a[0]))
int i, naps, off, szbuf;
struct wi_scan_header ws_hdr; /* Prism2 header */
struct wi_scan_data_p2 ws_dat; /* Prism2 scantable*/
struct wi_apinfo *ap;
off = sizeof(u_int16_t) * 2;
memset(&ws_hdr, 0, sizeof(ws_hdr));
switch (sc->sc_firmware_type) {
case WI_INTERSIL:
wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
off += sizeof(ws_hdr);
szbuf = sizeof(struct wi_scan_data_p2);
break;
case WI_SYMBOL:
szbuf = sizeof(struct wi_scan_data_p2) + 6;
break;
case WI_LUCENT:
szbuf = sizeof(struct wi_scan_data);
break;
default:
device_printf(sc->sc_dev,
"wi_scan_result: unknown firmware type %u\n",
sc->sc_firmware_type);
naps = 0;
goto done;
}
naps = (cnt * 2 + 2 - off) / szbuf;
if (naps > N(sc->sc_aps))
naps = N(sc->sc_aps);
sc->sc_naps = naps;
/* Read Data */
ap = sc->sc_aps;
memset(&ws_dat, 0, sizeof(ws_dat));
for (i = 0; i < naps; i++, ap++) {
wi_read_bap(sc, fid, off, &ws_dat,
(sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
DPRINTF2(("wi_scan_result: #%d: off %d bssid %s\n", i, off,
ether_sprintf(ws_dat.wi_bssid)));
off += szbuf;
ap->scanreason = le16toh(ws_hdr.wi_reason);
memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
ap->channel = le16toh(ws_dat.wi_chid);
ap->signal = le16toh(ws_dat.wi_signal);
ap->noise = le16toh(ws_dat.wi_noise);
ap->quality = ap->signal - ap->noise;
ap->capinfo = le16toh(ws_dat.wi_capinfo);
ap->interval = le16toh(ws_dat.wi_interval);
ap->rate = le16toh(ws_dat.wi_rate);
ap->namelen = le16toh(ws_dat.wi_namelen);
if (ap->namelen > sizeof(ap->name))
ap->namelen = sizeof(ap->name);
memcpy(ap->name, ws_dat.wi_name, ap->namelen);
}
done:
/* Done scanning */
sc->sc_scan_timer = 0;
DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps));
#undef N
}
static void
wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
{
ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
printf(" rx_signal %u rx_rate %u rx_flow %u\n",
wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
wh->wi_tx_rtry, wh->wi_tx_rate,
le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
printf(" ehdr dst %6D src %6D type 0x%x\n",
wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
wh->wi_ehdr.ether_type);
}
int
wi_alloc(device_t dev, int rid)
{
struct wi_softc *sc = device_get_softc(dev);
if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
sc->iobase_rid = rid;
sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
&sc->iobase_rid, 0, ~0, (1 << 6),
rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
if (!sc->iobase) {
device_printf(dev, "No I/O space?!\n");
return (ENXIO);
}
sc->wi_io_addr = rman_get_start(sc->iobase);
sc->wi_btag = rman_get_bustag(sc->iobase);
sc->wi_bhandle = rman_get_bushandle(sc->iobase);
} else {
sc->mem_rid = rid;
sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->mem_rid, RF_ACTIVE);
if (!sc->mem) {
device_printf(dev, "No Mem space on prism2.5?\n");
return (ENXIO);
}
sc->wi_btag = rman_get_bustag(sc->mem);
sc->wi_bhandle = rman_get_bushandle(sc->mem);
}
sc->irq_rid = 0;
sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
RF_ACTIVE |
((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
if (!sc->irq) {
wi_free(dev);
device_printf(dev, "No irq?!\n");
return (ENXIO);
}
sc->sc_dev = dev;
sc->sc_unit = device_get_unit(dev);
return (0);
}
void
wi_free(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
if (sc->iobase != NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
sc->iobase = NULL;
}
if (sc->irq != NULL) {
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
sc->irq = NULL;
}
if (sc->mem != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
sc->mem = NULL;
}
return;
}
static int
wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
{
int error = 0;
wreq->wi_len = 1;
switch (wreq->wi_type) {
case WI_DEBUG_SLEEP:
wreq->wi_len++;
wreq->wi_val[0] = sc->wi_debug.wi_sleep;
break;
case WI_DEBUG_DELAYSUPP:
wreq->wi_len++;
wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
break;
case WI_DEBUG_TXSUPP:
wreq->wi_len++;
wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
break;
case WI_DEBUG_MONITOR:
wreq->wi_len++;
wreq->wi_val[0] = sc->wi_debug.wi_monitor;
break;
case WI_DEBUG_LEDTEST:
wreq->wi_len += 3;
wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
break;
case WI_DEBUG_CONTTX:
wreq->wi_len += 2;
wreq->wi_val[0] = sc->wi_debug.wi_conttx;
wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
break;
case WI_DEBUG_CONTRX:
wreq->wi_len++;
wreq->wi_val[0] = sc->wi_debug.wi_contrx;
break;
case WI_DEBUG_SIGSTATE:
wreq->wi_len += 2;
wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
break;
case WI_DEBUG_CONFBITS:
wreq->wi_len += 2;
wreq->wi_val[0] = sc->wi_debug.wi_confbits;
wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
break;
default:
error = EIO;
break;
}
return (error);
}
static int
wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
{
int error = 0;
u_int16_t cmd, param0 = 0, param1 = 0;
switch (wreq->wi_type) {
case WI_DEBUG_RESET:
case WI_DEBUG_INIT:
case WI_DEBUG_CALENABLE:
break;
case WI_DEBUG_SLEEP:
sc->wi_debug.wi_sleep = 1;
break;
case WI_DEBUG_WAKE:
sc->wi_debug.wi_sleep = 0;
break;
case WI_DEBUG_CHAN:
param0 = wreq->wi_val[0];
break;
case WI_DEBUG_DELAYSUPP:
sc->wi_debug.wi_delaysupp = 1;
break;
case WI_DEBUG_TXSUPP:
sc->wi_debug.wi_txsupp = 1;
break;
case WI_DEBUG_MONITOR:
sc->wi_debug.wi_monitor = 1;
break;
case WI_DEBUG_LEDTEST:
param0 = wreq->wi_val[0];
param1 = wreq->wi_val[1];
sc->wi_debug.wi_ledtest = 1;
sc->wi_debug.wi_ledtest_param0 = param0;
sc->wi_debug.wi_ledtest_param1 = param1;
break;
case WI_DEBUG_CONTTX:
param0 = wreq->wi_val[0];
sc->wi_debug.wi_conttx = 1;
sc->wi_debug.wi_conttx_param0 = param0;
break;
case WI_DEBUG_STOPTEST:
sc->wi_debug.wi_delaysupp = 0;
sc->wi_debug.wi_txsupp = 0;
sc->wi_debug.wi_monitor = 0;
sc->wi_debug.wi_ledtest = 0;
sc->wi_debug.wi_ledtest_param0 = 0;
sc->wi_debug.wi_ledtest_param1 = 0;
sc->wi_debug.wi_conttx = 0;
sc->wi_debug.wi_conttx_param0 = 0;
sc->wi_debug.wi_contrx = 0;
sc->wi_debug.wi_sigstate = 0;
sc->wi_debug.wi_sigstate_param0 = 0;
break;
case WI_DEBUG_CONTRX:
sc->wi_debug.wi_contrx = 1;
break;
case WI_DEBUG_SIGSTATE:
param0 = wreq->wi_val[0];
sc->wi_debug.wi_sigstate = 1;
sc->wi_debug.wi_sigstate_param0 = param0;
break;
case WI_DEBUG_CONFBITS:
param0 = wreq->wi_val[0];
param1 = wreq->wi_val[1];
sc->wi_debug.wi_confbits = param0;
sc->wi_debug.wi_confbits_param0 = param1;
break;
default:
error = EIO;
break;
}
if (error)
return (error);
cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
error = wi_cmd(sc, cmd, param0, param1, 0);
return (error);
}
#if __FreeBSD_version >= 500000
/*
* Special routines to download firmware for Symbol CF card.
* XXX: This should be modified generic into any PRISM-2 based card.
*/
#define WI_SBCF_PDIADDR 0x3100
/* unaligned load little endian */
#define GETLE32(p) ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
#define GETLE16(p) ((p)[0] | ((p)[1]<<8))
int
wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
const void *secsym, int seclen)
{
uint8_t ebuf[256];
int i;
/* load primary code and run it */
wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
return EIO;
wi_symbol_set_hcr(sc, WI_HCR_RUN);
for (i = 0; ; i++) {
if (i == 10)
return ETIMEDOUT;
tsleep(sc, PWAIT, "wiinit", 1);
if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
break;
/* write the magic key value to unlock aux port */
CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
}
/* issue read EEPROM command: XXX copied from wi_cmd() */
CSR_WRITE_2(sc, WI_PARAM0, 0);
CSR_WRITE_2(sc, WI_PARAM1, 0);
CSR_WRITE_2(sc, WI_PARAM2, 0);
CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
for (i = 0; i < WI_TIMEOUT; i++) {
if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
break;
DELAY(1);
}
CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
(uint16_t *)ebuf, sizeof(ebuf) / 2);
if (GETLE16(ebuf) > sizeof(ebuf))
return EIO;
if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
return EIO;
return 0;
}
static int
wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
const void *ebuf, int ebuflen)
{
const uint8_t *p, *ep, *q, *eq;
char *tp;
uint32_t addr, id, eid;
int i, len, elen, nblk, pdrlen;
/*
* Parse the header of the firmware image.
*/
p = buf;
ep = p + buflen;
while (p < ep && *p++ != ' '); /* FILE: */
while (p < ep && *p++ != ' '); /* filename */
while (p < ep && *p++ != ' '); /* type of the firmware */
nblk = strtoul(p, &tp, 10);
p = tp;
pdrlen = strtoul(p + 1, &tp, 10);
p = tp;
while (p < ep && *p++ != 0x1a); /* skip rest of header */
/*
* Block records: address[4], length[2], data[length];
*/
for (i = 0; i < nblk; i++) {
addr = GETLE32(p); p += 4;
len = GETLE16(p); p += 2;
CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
(const uint16_t *)p, len / 2);
p += len;
}
/*
* PDR: id[4], address[4], length[4];
*/
for (i = 0; i < pdrlen; ) {
id = GETLE32(p); p += 4; i += 4;
addr = GETLE32(p); p += 4; i += 4;
len = GETLE32(p); p += 4; i += 4;
/* replace PDR entry with the values from EEPROM, if any */
for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
elen = GETLE16(q); q += 2;
eid = GETLE16(q); q += 2;
elen--; /* elen includes eid */
if (eid == 0)
break;
if (eid != id)
continue;
CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
(const uint16_t *)q, len / 2);
break;
}
}
return 0;
}
static int
wi_symbol_set_hcr(struct wi_softc *sc, int mode)
{
uint16_t hcr;
CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
tsleep(sc, PWAIT, "wiinit", 1);
hcr = CSR_READ_2(sc, WI_HCR);
hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
CSR_WRITE_2(sc, WI_HCR, hcr);
tsleep(sc, PWAIT, "wiinit", 1);
CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
tsleep(sc, PWAIT, "wiinit", 1);
return 0;
}
#endif
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