qtnfmac: include full channels info to regulatory notifier

Before regulatory notifier is invoked by a wireless core, it will
update band information for the wiphy. Pass this information to
firmware together with new region alpha2 code.
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/quantenna/qtnfmac/commands.c

@@ -2406,10 +2406,13 @@ int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, bool up)
 
 int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req)
 {
+	struct wiphy *wiphy = priv_to_wiphy(mac);
 	struct qtnf_bus *bus = mac->bus;
 	struct sk_buff *cmd_skb;
 	int ret;
 	struct qlink_cmd_reg_notify *cmd;
+	enum nl80211_band band;
+	const struct ieee80211_supported_band *cfg_band;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
 					    QLINK_CMD_REG_NOTIFY,
@@ -2448,6 +2451,23 @@ int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req)
 		break;
 	}
 
+	cmd->num_channels = 0;
+
+	for (band = 0; band < NUM_NL80211_BANDS; band++) {
+		unsigned int i;
+
+		cfg_band = wiphy->bands[band];
+		if (!cfg_band)
+			continue;
+
+		cmd->num_channels += cfg_band->n_channels;
+
+		for (i = 0; i < cfg_band->n_channels; ++i) {
+			qtnf_cmd_channel_tlv_add(cmd_skb,
+						 &cfg_band->channels[i]);
+		}
+	}
+
 	qtnf_bus_lock(bus);
 	ret = qtnf_cmd_send(bus, cmd_skb);
 	qtnf_bus_unlock(bus);

drivers/net/wireless/quantenna/qtnfmac/qlink.h

@@ -6,7 +6,7 @@
 
 #include <linux/ieee80211.h>
 
-#define QLINK_PROTO_VER		13
+#define QLINK_PROTO_VER		14
 
 #define QLINK_MACID_RSVD		0xFF
 #define QLINK_VIFID_RSVD		0xFF
@@ -580,12 +580,18 @@ enum qlink_user_reg_hint_type {
  * @initiator: which entity sent the request, one of &enum qlink_reg_initiator.
  * @user_reg_hint_type: type of hint for QLINK_REGDOM_SET_BY_USER request, one
  *	of &enum qlink_user_reg_hint_type.
+ * @num_channels: number of &struct qlink_tlv_channel in a variable portion of a
+ *	payload.
+ * @info: variable portion of regulatory notifier callback.
  */
 struct qlink_cmd_reg_notify {
 	struct qlink_cmd chdr;
 	u8 alpha2[2];
 	u8 initiator;
 	u8 user_reg_hint_type;
+	u8 num_channels;
+	u8 rsvd[3];
+	u8 info[0];
 } __packed;
 
 /**