C++ (Cpp) cfg80211_chandef_identical Examples

Example #1

File: cfg80211.c Project: mkrufky/linux

static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev,
			       struct cfg80211_csa_settings *params)
{
	struct qtnf_wmac *mac = wiphy_priv(wiphy);
	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
	int ret;

	pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name,
		 params->chandef.chan->hw_value, params->count,
		 params->radar_required, params->block_tx);

	switch (vif->wdev.iftype) {
	case NL80211_IFTYPE_AP:
		if (!(vif->bss_status & QTNF_STATE_AP_START)) {
			pr_warn("AP not started on %s\n", dev->name);
			return -ENOTCONN;
		}
		break;
	default:
		pr_err("unsupported vif type (%d) on %s\n",
		       vif->wdev.iftype, dev->name);
		return -EOPNOTSUPP;
	}

	if (vif->vifid != 0) {
		if (!(mac->status & QTNF_MAC_CSA_ACTIVE))
			return -EOPNOTSUPP;

		if (!cfg80211_chandef_identical(&params->chandef,
						&mac->csa_chandef))
			return -EINVAL;

		return 0;
	}

	if (!cfg80211_chandef_valid(&params->chandef)) {
		pr_err("%s: invalid channel\n", dev->name);
		return -EINVAL;
	}

	if (cfg80211_chandef_identical(&params->chandef, &mac->chandef)) {
		pr_err("%s: switch request to the same channel\n", dev->name);
		return -EALREADY;
	}

	ret = qtnf_cmd_send_chan_switch(mac, params);
	if (ret)
		pr_warn("%s: failed to switch to channel (%u)\n",
			dev->name, params->chandef.chan->hw_value);

	return ret;
}

Example #2

File: chan.c Project: hemantbeast/msm-3.10

const struct cfg80211_chan_def *
cfg80211_chandef_compatible(const struct cfg80211_chan_def *c1,
			    const struct cfg80211_chan_def *c2)
{
	u32 c1_pri40, c1_pri80, c2_pri40, c2_pri80;

	/* If they are identical, return */
	if (cfg80211_chandef_identical(c1, c2))
		return c1;

	/* otherwise, must have same control channel */
	if (c1->chan != c2->chan)
		return NULL;

	/*
	 * If they have the same width, but aren't identical,
	 * then they can't be compatible.
	 */
	if (c1->width == c2->width)
		return NULL;

	/*
	 * can't be compatible if one of them is 5 or 10 MHz,
	 * but they don't have the same width.
	 */
	if (c1->width == NL80211_CHAN_WIDTH_5 ||
	    c1->width == NL80211_CHAN_WIDTH_10 ||
	    c2->width == NL80211_CHAN_WIDTH_5 ||
	    c2->width == NL80211_CHAN_WIDTH_10)
		return NULL;

	if (c1->width == NL80211_CHAN_WIDTH_20_NOHT ||
	    c1->width == NL80211_CHAN_WIDTH_20)
		return c2;

	if (c2->width == NL80211_CHAN_WIDTH_20_NOHT ||
	    c2->width == NL80211_CHAN_WIDTH_20)
		return c1;

	chandef_primary_freqs(c1, &c1_pri40, &c1_pri80);
	chandef_primary_freqs(c2, &c2_pri40, &c2_pri80);

	if (c1_pri40 != c2_pri40)
		return NULL;

	WARN_ON(!c1_pri80 && !c2_pri80);
	if (c1_pri80 && c2_pri80 && c1_pri80 != c2_pri80)
		return NULL;

	if (c1->width > c2->width)
		return c1;
	return c2;
}

Example #3

File: cfg80211.c Project: mkrufky/linux

static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
			 struct cfg80211_ap_settings *settings)
{
	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
	struct qtnf_wmac *mac = wiphy_priv(wiphy);
	struct qtnf_bss_config *bss_cfg;
	int ret;

	if (!cfg80211_chandef_identical(&mac->chandef, &settings->chandef)) {
		memcpy(&mac->chandef, &settings->chandef, sizeof(mac->chandef));
		if (vif->vifid != 0)
			pr_warn("%s: unexpected chan %u (%u MHz)\n", dev->name,
				settings->chandef.chan->hw_value,
				settings->chandef.chan->center_freq);
	}

	bss_cfg = &vif->bss_cfg;
	memset(bss_cfg, 0, sizeof(*bss_cfg));

	bss_cfg->bcn_period = settings->beacon_interval;
	bss_cfg->dtim = settings->dtim_period;
	bss_cfg->auth_type = settings->auth_type;
	bss_cfg->privacy = settings->privacy;

	bss_cfg->ssid_len = settings->ssid_len;
	memcpy(&bss_cfg->ssid, settings->ssid, bss_cfg->ssid_len);

	memcpy(&bss_cfg->crypto, &settings->crypto,
	       sizeof(struct cfg80211_crypto_settings));

	ret = qtnf_cmd_send_config_ap(vif);
	if (ret) {
		pr_err("VIF%u.%u: failed to push config to FW\n",
		       vif->mac->macid, vif->vifid);
		goto out;
	}

	if (!(vif->bss_status & QTNF_STATE_AP_CONFIG)) {
		pr_err("VIF%u.%u: AP config failed in FW\n", vif->mac->macid,
		       vif->vifid);
		ret = -EFAULT;
		goto out;
	}

	ret = qtnf_mgmt_set_appie(vif, &settings->beacon);
	if (ret) {
		pr_err("VIF%u.%u: failed to add IEs to beacon\n",
		       vif->mac->macid, vif->vifid);
		goto out;
	}

	ret = qtnf_cmd_send_start_ap(vif);
	if (ret) {
		pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid,
		       vif->vifid);
		goto out;
	}

	if (!(vif->bss_status & QTNF_STATE_AP_START)) {
		pr_err("VIF%u.%u: FW failed to start AP operation\n",
		       vif->mac->macid, vif->vifid);
		ret = -EFAULT;
	}

out:
	return ret;
}