C++ (Cpp) ieee80211n_scan_channels_5g Examples

Example #1

File: hw_features.c Project: tool3210/TizenRT

static void ap_ht40_scan_retry(void *eloop_data, void *user_data)
{
#define HT2040_COEX_SCAN_RETRY 15
	struct hostapd_iface *iface = eloop_data;
	struct wpa_driver_scan_params params;
	int ret;

	os_memset(&params, 0, sizeof(params));
	if (iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G) {
		ieee80211n_scan_channels_2g4(iface, &params);
	} else {
		ieee80211n_scan_channels_5g(iface, &params);
	}

	ret = hostapd_driver_scan(iface->bss[0], &params);
	iface->num_ht40_scan_tries++;
	os_free(params.freqs);

	if (ret == -EBUSY && iface->num_ht40_scan_tries < HT2040_COEX_SCAN_RETRY) {
		wpa_printf(MSG_ERROR, "Failed to request a scan of neighboring BSSes ret=%d (%s) - try to scan again (attempt %d)", ret, strerror(-ret), iface->num_ht40_scan_tries);
		eloop_register_timeout(1, 0, ap_ht40_scan_retry, iface, NULL);
		return;
	}

	if (ret == 0) {
		iface->scan_cb = ieee80211n_check_scan;
		return;
	}

	wpa_printf(MSG_DEBUG, "Failed to request a scan in device, bringing up in HT20 mode");
	iface->conf->secondary_channel = 0;
	iface->conf->ht_capab &= ~HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
	hostapd_setup_interface_complete(iface, 0);
}

Example #2

File: hw_features.c Project: imw/hapd

static int ieee80211n_check_40mhz(struct hostapd_iface *iface)
{
	struct wpa_driver_scan_params params;

	if (!iface->conf->secondary_channel || iface->conf->noscan)
		return 0; /* HT40 not used */

	hostapd_set_state(iface, HAPD_IFACE_HT_SCAN);
	wpa_printf(MSG_DEBUG, "Scan for neighboring BSSes prior to enabling "
		   "40 MHz channel");
	os_memset(&params, 0, sizeof(params));
	if (iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
		ieee80211n_scan_channels_2g4(iface, &params);
	else
		ieee80211n_scan_channels_5g(iface, &params);
	if (hostapd_driver_scan(iface->bss[0], &params) < 0) {
		wpa_printf(MSG_ERROR, "Failed to request a scan of "
			   "neighboring BSSes");
		os_free(params.freqs);
		return -1;
	}
	os_free(params.freqs);

	iface->scan_cb = ieee80211n_check_scan;
	return 1;
}

Example #3

File: hw_features.c Project: angrysoft/hostapd-rtl

static int ieee80211n_check_40mhz(struct hostapd_iface *iface)
{
	struct wpa_driver_scan_params params;
	int ret;

	if (!iface->conf->secondary_channel)
		return 0; /* HT40 not used */

	hostapd_set_state(iface, HAPD_IFACE_HT_SCAN);
	wpa_printf(MSG_DEBUG, "Scan for neighboring BSSes prior to enabling "
		   "40 MHz channel");
	os_memset(&params, 0, sizeof(params));
	if (iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
		ieee80211n_scan_channels_2g4(iface, &params);
	else
		ieee80211n_scan_channels_5g(iface, &params);

	ret = hostapd_driver_scan(iface->bss[0], &params);
	os_free(params.freqs);

	if (ret == -EBUSY) {
		wpa_printf(MSG_ERROR,
			   "Failed to request a scan of neighboring BSSes ret=%d (%s) - try to scan again",
			   ret, strerror(-ret));
		iface->num_ht40_scan_tries = 1;
		eloop_cancel_timeout(ap_ht40_scan_retry, iface, NULL);
		eloop_register_timeout(1, 0, ap_ht40_scan_retry, iface, NULL);
		//DRIVER_RTW Modify
		//return -1;
		return 0;//ignore this error
	}

	if (ret < 0) {
		wpa_printf(MSG_ERROR,
			   "Failed to request a scan of neighboring BSSes ret=%d (%s)",
			   ret, strerror(-ret));
		return -1;
	}

	iface->scan_cb = ieee80211n_check_scan;
	return 1;
}