66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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/*
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* BSS Load Element / Channel Utilization
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* Copyright (c) 2014, Qualcomm Atheros, Inc.
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "hostapd.h"
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#include "bss_load.h"
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#include "ap_drv_ops.h"
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#include "beacon.h"
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static void update_channel_utilization(void *eloop_data, void *user_data)
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{
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struct hostapd_data *hapd = eloop_data;
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unsigned int sec, usec;
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int err;
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if (!(hapd->beacon_set_done && hapd->started))
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return;
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err = hostapd_drv_get_survey(hapd, hapd->iface->freq);
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if (err) {
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wpa_printf(MSG_ERROR, "BSS Load: Failed to get survey data");
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return;
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}
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ieee802_11_set_beacon(hapd);
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sec = ((hapd->bss_load_update_timeout / 1000) * 1024) / 1000;
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usec = (hapd->bss_load_update_timeout % 1000) * 1024;
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eloop_register_timeout(sec, usec, update_channel_utilization, hapd,
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NULL);
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}
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int bss_load_update_init(struct hostapd_data *hapd)
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{
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struct hostapd_bss_config *conf = hapd->conf;
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struct hostapd_config *iconf = hapd->iconf;
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unsigned int sec, usec;
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if (!conf->bss_load_update_period || !iconf->beacon_int)
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return -1;
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hapd->bss_load_update_timeout = conf->bss_load_update_period *
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iconf->beacon_int;
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sec = ((hapd->bss_load_update_timeout / 1000) * 1024) / 1000;
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usec = (hapd->bss_load_update_timeout % 1000) * 1024;
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eloop_register_timeout(sec, usec, update_channel_utilization, hapd,
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NULL);
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return 0;
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}
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void bss_load_update_deinit(struct hostapd_data *hapd)
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{
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eloop_cancel_timeout(update_channel_utilization, hapd, NULL);
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}
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