samples: wifi: wfa-qt: Add supplicant events

Add changes to handle supplicant events.

Signed-off-by: Triveni Danda <[email protected]>

samples/wifi/wfa_qt_app/CMakeLists.txt

@@ -9,4 +9,8 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(nrf_wfa_qt_app)
 
-target_sources(app PRIVATE src/qt_app_main.c)
+target_compile_definitions(app PRIVATE -DCONFIG_CTRL_IFACE_ZEPHYR=y)
+target_sources(app PRIVATE 
+	src/events.c
+	src/qt_app_main.c)
+

samples/wifi/wfa_qt_app/src/events.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/** @file
+ * @brief WPA SUPP events
+ */
+
+#include <stdio.h>
+#include <zephyr/net/net_event.h>
+#include <ctrl_iface_zephyr.h>
+#include <supp_events.h>
+#include <utils.h>
+#include <supp_main.h>
+
+#define WPA_SUPP_EVENTS (NET_EVENT_WPA_SUPP_READY | \
+			 NET_EVENT_WPA_SUPP_NOT_READY | \
+			 NET_EVENT_WPA_SUPP_IFACE_ADDED | \
+			 NET_EVENT_WPA_SUPP_CMD_IFACE_REMOVING | \
+			 NET_EVENT_WPA_SUPP_CMD_IFACE_REMOVED)
+
+static struct net_mgmt_event_callback net_wpa_supp_cb;
+struct wpa_supplicant *wpa_s = NULL;
+
+K_SEM_DEFINE(wpa_supp_ready_sem, 0, 1);
+
+static void handle_wpa_supp_ready(struct net_mgmt_event_callback *cb)
+{
+	int retry_count = 0;
+retry:
+	wpa_s = z_wpas_get_handle_by_ifname("wlan0");
+	if (!wpa_s && retry_count++ < 5) {
+		printf("%s: Unable to get wpa_s handle for %s\n",
+			      __func__, "wlan0");
+		goto retry;
+	}
+
+	if (!wpa_s) {
+		printf("%s: Unable to get wpa_s handle for %s\n",
+				__func__, "wlan0");
+	}
+
+	k_sem_give(&wpa_supp_ready_sem);
+
+}
+
+static void wpa_supp_event_handler(struct net_mgmt_event_callback *cb,
+                                    uint32_t mgmt_event, struct net_if *iface)
+{
+        switch (mgmt_event) {
+        case NET_EVENT_WPA_SUPP_READY:
+		printf("Supplicant is ready");
+		handle_wpa_supp_ready(cb);
+                break;
+	case NET_EVENT_WPA_SUPP_NOT_READY:
+		printf("Supplicant is not ready");
+                break;
+	case  NET_EVENT_WPA_SUPP_IFACE_ADDED:
+		printf("Interface added");
+                break;
+	case NET_EVENT_WPA_SUPP_CMD_IFACE_REMOVING:
+		printf("Interface is removing");
+                break;
+	case NET_EVENT_WPA_SUPP_CMD_IFACE_REMOVED:
+		printf("Interface removed");
+                break;
+        default:
+                break;
+        }
+}
+
+int wpa_supp_events_init(void)
+{
+	net_mgmt_init_event_callback(&net_wpa_supp_cb,
+                                     wpa_supp_event_handler,
+                                     WPA_SUPP_EVENTS);
+        net_mgmt_add_event_callback(&net_wpa_supp_cb);
+
+	k_sem_take(&wpa_supp_ready_sem, K_FOREVER);
+
+	/* Check for ctrl_iface initialization */
+	if (wpa_s->ctrl_iface->sock_pair[0] < 0) {
+		return -1;
+	}
+
+	return 0;
+}

samples/wifi/wfa_qt_app/src/qt_app_main.c

@@ -33,9 +33,12 @@ int init_usb(void)
 }
 #endif /* CONFIG_USB_DEVICE_STACK */
 
+int check_events(void);
+
 int main(void)
 {
 	struct in_addr addr;
+	int ret;
 
 #if defined(CLOCK_FEATURE_HFCLK_DIVIDE_PRESENT) || NRF_CLOCK_HAS_HFCLK192M
 	/* For now hardcode to 128MHz */
@@ -133,6 +136,10 @@ int main(void)
 
 	net_config_init_app(dev, "Initializing network");
 #endif
+	ret = wpa_supp_events_init();
+	if (ret) {
+		return -1;
+	}
 
 	return 0;
 }