hostap: Add channel set support

This set of changes introduces an API to set the channel when
the device is working in independent Monitor or TX injection mode

Signed-off-by: Vivekananda Uppunda <vivekananda.uppunda@nordicsemi.no>
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>

modules/hostap/src/supp_api.c

@@ -657,3 +657,15 @@ int supplicant_filter(const struct device *dev, struct wifi_filter_info *filter)
 
 	return wifi_mgmt_api->filter(dev, filter);
 }
+
+int supplicant_channel(const struct device *dev, struct wifi_channel_info *channel)
+{
+	const struct wifi_mgmt_ops *const wifi_mgmt_api = get_wifi_mgmt_api(dev);
+
+	if (!wifi_mgmt_api || !wifi_mgmt_api->channel) {
+		wpa_printf(MSG_ERROR, "Setting channel not supported");
+		return -ENOTSUP;
+	}
+
+	return wifi_mgmt_api->channel(dev, channel);
+}

modules/hostap/src/supp_api.h

@@ -125,4 +125,13 @@ int supplicant_mode(const struct device *dev, struct wifi_mode_info *mode);
  */
 int supplicant_filter(const struct device *dev, struct wifi_filter_info *filter);
 
+/**
+ * @brief Set Wi-Fi channel for monitor or TX injection mode
+ *
+ * @param dev Wi-Fi interface name to use
+ * @param channel Channel settings to set
+ * @return 0 for OK; -1 for ERROR
+ */
+int supplicant_channel(const struct device *dev, struct wifi_channel_info *channel);
+
 #endif /* ZEPHYR_SUPP_MGMT_H */

modules/hostap/src/supp_main.c

@@ -51,6 +51,7 @@ static const struct wifi_mgmt_ops mgmt_ops = {
 	.reg_domain = supplicant_reg_domain,
 	.mode = supplicant_mode,
 	.filter = supplicant_filter,
+	.channel = supplicant_channel,
 };
 
 DEFINE_WIFI_NM_INSTANCE(wifi_supplicant, &mgmt_ops);