/*
* Detach net80211 state on device detach. Tear down
* all vap's and reclaim all common state prior to the
* device state going away. Note we may call back into
* driver; it must be prepared for this.
*/
void
ieee80211_ifdetach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211vap *vap;
if_detach(ifp);
while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL)
ieee80211_vap_destroy(vap);
ieee80211_waitfor_parent(ic);
ieee80211_sysctl_detach(ic);
ieee80211_dfs_detach(ic);
ieee80211_regdomain_detach(ic);
ieee80211_scan_detach(ic);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_superg_detach(ic);
#endif
ieee80211_ht_detach(ic);
/* NB: must be called before ieee80211_node_detach */
ieee80211_proto_detach(ic);
ieee80211_crypto_detach(ic);
ieee80211_power_detach(ic);
ieee80211_node_detach(ic);
ifmedia_removeall(&ic->ic_media);
taskqueue_free(ic->ic_tq);
}
/*
* Detach net80211 state on device detach. Tear down
* all vap's and reclaim all common state prior to the
* device state going away. Note we may call back into
* driver; it must be prepared for this.
*/
void
ieee80211_ifdetach(struct ieee80211com *ic)
{
struct ifnet *ifp = ic->ic_ifp;
struct ieee80211vap *vap;
/*
* This detaches the main interface, but not the vaps.
* Each VAP may be in a separate VIMAGE.
*/
CURVNET_SET(ifp->if_vnet);
if_detach(ifp);
CURVNET_RESTORE();
/*
* The VAP is responsible for setting and clearing
* the VIMAGE context.
*/
while ((vap = TAILQ_FIRST(&ic->ic_vaps)) != NULL)
ieee80211_vap_destroy(vap);
ieee80211_waitfor_parent(ic);
ieee80211_sysctl_detach(ic);
ieee80211_dfs_detach(ic);
ieee80211_regdomain_detach(ic);
ieee80211_scan_detach(ic);
#ifdef IEEE80211_SUPPORT_SUPERG
ieee80211_superg_detach(ic);
#endif
ieee80211_ht_detach(ic);
/* NB: must be called before ieee80211_node_detach */
ieee80211_proto_detach(ic);
ieee80211_crypto_detach(ic);
ieee80211_power_detach(ic);
ieee80211_node_detach(ic);
/* XXX VNET needed? */
ifmedia_removeall(&ic->ic_media);
taskqueue_free(ic->ic_tq);
IEEE80211_TX_LOCK_DESTROY(ic);
IEEE80211_LOCK_DESTROY(ic);
}
int
ieee80211_ifattach(struct ieee80211com *ic, IEEE80211_REG_PARAMETERS *ieee80211_reg_parm)
{
u_int8_t bcast[IEEE80211_ADDR_LEN] = {0xff,0xff,0xff,0xff,0xff,0xff};
int error = 0;
ic->ic_reg_parm = *ieee80211_reg_parm;
/* set up broadcast address */
IEEE80211_ADDR_COPY(ic->ic_broadcast, bcast);
/* initialize channel list */
ieee80211_update_channellist(ic, 0);
/* initialize rate set */
ieee80211_init_rateset(ic);
/* validate ic->ic_curmode */
if (!IEEE80211_SUPPORT_PHY_MODE(ic, ic->ic_curmode))
ic->ic_curmode = IEEE80211_MODE_AUTO;
/* setup initial channel settings */
ic->ic_curchan = ieee80211_get_channel(ic, 0); /* arbitrarily pick the first channel */
/* Enable marking of dfs by default */
ic->ic_flags_ext |= IEEE80211_FEXT_MARKDFS;
if (ic->ic_reg_parm.htEnableWepTkip) {
ieee80211_ic_wep_tkip_htrate_set(ic);
} else {
ieee80211_ic_wep_tkip_htrate_clear(ic);
}
if (ic->ic_reg_parm.htVendorIeEnable)
IEEE80211_ENABLE_HTVIE(ic);
/* whether to ignore 11d beacon */
if (ic->ic_reg_parm.ignore11dBeacon)
IEEE80211_ENABLE_IGNORE_11D_BEACON(ic);
if (ic->ic_reg_parm.disallowAutoCCchange) {
ieee80211_ic_disallowAutoCCchange_set(ic);
}
else {
ieee80211_ic_disallowAutoCCchange_clear(ic);
}
(void) ieee80211_setmode(ic, ic->ic_curmode, ic->ic_opmode);
ic->ic_intval = IEEE80211_BINTVAL_DEFAULT; /* beacon interval */
ic->ic_set_beacon_interval(ic);
ic->ic_lintval = 1; /* listen interval */
ic->ic_lintval_assoc = IEEE80211_LINTVAL_MAX; /* listen interval to use in association */
ic->ic_bmisstimeout = IEEE80211_BMISS_LIMIT * ic->ic_intval;
TAILQ_INIT(&ic->ic_vaps);
ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX;
/* Intialize WDS Auto Detect mode */
ic->ic_flags_ext |= IEEE80211_FEXT_WDS_AUTODETECT;
/*
** Enable the 11d country code IE by default
*/
ic->ic_flags_ext |= IEEE80211_FEXT_COUNTRYIE;
/* setup CWM configuration */
ic->ic_cwm_set_mode(ic, ic->ic_reg_parm.cwmMode);
ic->ic_cwm_set_extoffset(ic, ic->ic_reg_parm.cwmExtOffset);
ic->ic_cwm_set_extprotmode(ic, ic->ic_reg_parm.cwmExtProtMode);
ic->ic_cwm_set_extprotspacing(ic, ic->ic_reg_parm.cwmExtProtSpacing);
#if tbd
/* XXX - TODO - move these into ath layer */
#else
ic->ic_cwm_set_enable(ic, ic->ic_reg_parm.cwmEnable);
ic->ic_cwm_set_extbusythreshold(ic, ic->ic_reg_parm.cwmExtBusyThreshold);
#endif
ic->ic_enable2GHzHt40Cap = ic->ic_reg_parm.enable2GHzHt40Cap;
#ifdef ATH_COALESCING
ic->ic_tx_coalescing = ic->ic_reg_parm.txCoalescingEnable;
#endif
ic->ic_ignoreDynamicHalt = ic->ic_reg_parm.ignoreDynamicHalt;
/* default to auto ADDBA mode */
ic->ic_addba_mode = ADDBA_MODE_AUTO;
if (ic->ic_reg_parm.ht20AdhocEnable) {
/*
* Support HT rates in Ad hoc connections.
*/
if (IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT20) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT20)) {
ieee80211_ic_ht20Adhoc_set(ic);
if (ic->ic_reg_parm.htAdhocAggrEnable) {
ieee80211_ic_htAdhocAggr_set(ic);
}
}
}
if (ic->ic_reg_parm.ht40AdhocEnable) {
/*
* Support HT rates in Ad hoc connections.
*/
if (IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT40PLUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NA_HT40MINUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT40PLUS) ||
IEEE80211_SUPPORT_PHY_MODE(ic, IEEE80211_MODE_11NG_HT40MINUS)) {
ieee80211_ic_ht40Adhoc_set(ic);
if (ic->ic_reg_parm.htAdhocAggrEnable) {
ieee80211_ic_htAdhocAggr_set(ic);
}
}
}
OS_INIT_TIMER(ic->ic_osdev, &(ic->ic_inact_timer), ieee80211_inact_timeout, (void *) (ic));
#if UMAC_SUPPORT_WNM
OS_INIT_TIMER(ic->ic_osdev, &(ic->ic_bssload_timer), ieee80211_bssload_timeout, (void *) (ic));
#endif
if (ic->ic_reg_parm.disable2040Coexist) {
ic->ic_flags |= IEEE80211_F_COEXT_DISABLE;
} else {
ic->ic_flags &= ~IEEE80211_F_COEXT_DISABLE;
}
/* setup other modules */
/* The TSF Timer module is required when P2P or Off-channel support are required */
ic->ic_tsf_timer = ieee80211_tsf_timer_attach(ic);
#if UMAC_SUPPORT_TDLS_CHAN_SWITCH
/* TDLS off-channel support requires TSF timer */
if (ic->ic_tsf_timer) {
ieee80211_ic_off_channel_support_set(ic);
}
else {
ieee80211_ic_off_channel_support_clear(ic);
}
#else
ieee80211_ic_off_channel_support_clear(ic);
#endif
ieee80211_p2p_attach(ic);
ieee80211_crypto_attach(ic);
ieee80211_node_attach(ic);
ieee80211_proto_attach(ic);
ieee80211_power_attach(ic);
ieee80211_mlme_attach(ic);
#if ATH_SUPPORT_DFS
ieee80211_dfs_attach(ic);
#endif /* ATH_SUPPORT_DFS */
if (IEEE80211_ENAB_AOW(ic))
ieee80211_aow_attach(ic);
error = ieee80211_scan_table_attach(ic, &(ic->ic_scan_table), ic->ic_osdev);
if (error) {
ieee80211_node_detach(ic);
return error;
}
/*
* By default overwrite probe response with beacon IE in scan entry.
*/
ieee80211_ic_override_proberesp_ie_set(ic);
error = ieee80211_scan_attach(&(ic->ic_scanner),
ic,
ic->ic_osdev,
ieee80211_is_connected,
ieee80211_is_txq_empty,
ieee80211_is_sw_txq_empty);
if (error) {
/* detach and free already allocated memory for scan */
ieee80211_scan_table_detach(&(ic->ic_scan_table));
ieee80211_node_detach(ic);
return error;
}
ic->ic_resmgr = ieee80211_resmgr_create(ic, IEEE80211_RESMGR_MODE_SINGLE_CHANNEL);
error = ieee80211_acs_attach(&(ic->ic_acs),
ic,
ic->ic_osdev);
if (error) {
/* detach and free already allocated memory for scan */
ieee80211_scan_table_detach(&(ic->ic_scan_table));
ieee80211_scan_detach(&(ic->ic_scanner));
ieee80211_node_detach(ic);
return error;
}
ic->ic_notify_tx_bcn_mgr = ieee80211_notify_tx_bcn_attach(ic);
ieee80211_rptplacement_attach(ic);
IEEE80211_TDLS_ATTACH(ic);
#if UMAC_SUPPORT_VI_DBG
ieee80211_vi_dbg_attach(ic);
#endif
ieee80211_quiet_attach(ic);
ieee80211_admctl_attach(ic);
/*
* Perform steps that require multiple objects to be initialized.
* For example, cross references between objects such as ResMgr and Scanner.
*/
ieee80211_scan_attach_complete(ic->ic_scanner);
ieee80211_resmgr_create_complete(ic->ic_resmgr);
ieee80211_smartantenna_attach(ic);
ieee80211_prdperfstats_attach(ic);
ic->ic_get_ext_chan_info = ieee80211_get_extchan_info;
/* initialization complete */
ic->ic_initialized = 1;
return 0;
}
void
ieee80211_ifdetach(struct ieee80211com *ic)
{
if (!ic->ic_initialized) {
return;
}
/*
* Preparation for detaching objects.
* For example, remove and cross references between objects such as those
* between ResMgr and Scanner.
*/
ieee80211_scan_detach_prepare(ic->ic_scanner);
ieee80211_resmgr_delete_prepare(ic->ic_resmgr);
OS_FREE_TIMER(&ic->ic_inact_timer);
#if UMAC_SUPPORT_WNM
OS_FREE_TIMER(&ic->ic_bssload_timer);
#endif
/* all the vaps should have been deleted now */
ASSERT(TAILQ_FIRST(&ic->ic_vaps) == NULL);
ieee80211_scan_table_detach(&(ic->ic_scan_table));
ieee80211_node_detach(ic);
ieee80211_quiet_detach(ic);
ieee80211_admctl_detach(ic);
if (IEEE80211_ENAB_AOW(ic))
ieee80211_aow_detach(ic);
#if ATH_SUPPORT_DFS
ieee80211_dfs_detach(ic);
#endif /* ATH_SUPPORT_DFS */
ieee80211_proto_detach(ic);
ieee80211_crypto_detach(ic);
ieee80211_power_detach(ic);
ieee80211_mlme_detach(ic);
ieee80211_notify_tx_bcn_detach(ic->ic_notify_tx_bcn_mgr);
ieee80211_resmgr_delete(ic->ic_resmgr);
ieee80211_scan_detach(&(ic->ic_scanner));
ieee80211_p2p_detach(ic);
ieee80211_acs_detach(&(ic->ic_acs));
ieee80211_rptplacement_detach(ic);
IEEE80211_TDLS_DETACH(ic);
#if UMAC_SUPPORT_VI_DBG
ieee80211_vi_dbg_detach(ic);
#endif
ieee80211_smartantenna_detach(ic);
ieee80211_prdperfstats_detach(ic);
spin_lock_destroy(&ic->ic_lock);
/* Detach TSF timer at the end to avoid assertion */
if (ic->ic_tsf_timer) {
ieee80211_tsf_timer_detach(ic->ic_tsf_timer);
ic->ic_tsf_timer = NULL;
}
spin_lock_destroy(&ic->ic_lock);
IEEE80211_STATE_LOCK_DESTROY(ic);
}