qcacld-3.0: Add logic for userspace to know WLAN state

As part of protected dynamic interface control feature,
if WiFi is disabled by user space, WLAN HW is also disabled.
If the device gets rebooted, then user space might not know
the current WLAN state. Add logic so that, user space can
always know the current WLAN state.

Change-Id: I00c913dbaec2031c7b3505fafd11471087a2c623
CRs-Fixed: 3225969

core/hdd/src/wlan_hdd_main.c

@@ -17835,13 +17835,13 @@ bool hdd_get_wlan_driver_status(void)
 static int hdd_wlan_soft_driver_load(void)
 {
 	if (!cds_is_driver_loaded()) {
-		pr_info("Enabling CNSS WLAN HW\n");
+		hdd_debug("\nEnabling CNSS WLAN HW");
 		pld_wlan_hw_enable();
 		return 0;
 	}
 
 	if (!g_soft_unload) {
-		pr_info("Enabling WiFi\n");
+		hdd_debug_rl("Enabling WiFi\n");
 		return -EINVAL;
 	}
 
@@ -17856,7 +17856,7 @@ static void hdd_wlan_soft_driver_unload(void)
 		hdd_debug_rl("WiFi is already disabled");
 		return;
 	}
-	pr_info("Initiating soft driver unload\n");
+	hdd_debug("Initiating soft driver unload\n");
 	g_soft_unload = true;
 	hdd_driver_unload();
 }
@@ -17925,7 +17925,7 @@ static int hdd_disable_wifi(struct hdd_context *hdd_ctx)
 {
 	return 0;
 }
-#endif /* FEATURE_WLAN_DYNAMIC_IFACE_CTRL */
+#endif /* FEATURE_CNSS_HW_SECURE_DISABLE */
 
 static ssize_t wlan_hdd_state_ctrl_param_write(struct file *filp,
 						const char __user *user_buf,
@@ -17954,16 +17954,23 @@ static ssize_t wlan_hdd_state_ctrl_param_write(struct file *filp,
 		pr_info("Wifi wait for ready from UI\n");
 		break;
 	case WLAN_ENABLE_STR:
+		hdd_nofl_debug("Received WiFi enable from framework\n");
 		if (!hdd_wlan_soft_driver_load())
 			goto exit;
+		pr_info("Enabling WiFi\n");
 		break;
 	case WLAN_DISABLE_STR:
+		hdd_nofl_debug("Received WiFi disable from framework\n");
+		if (!cds_is_driver_loaded())
+			goto exit;
+
 		is_wlan_force_disabled = hdd_get_wlan_driver_status();
 		if (is_wlan_force_disabled)
 			goto exit;
 		pr_info("Disabling WiFi\n");
 		break;
 	case WLAN_FORCE_DISABLE_STR:
+		hdd_nofl_debug("Received Force WiFi disable from framework\n");
 		hdd_wlan_soft_driver_unload();
 		goto exit;
 	default:
@@ -17978,7 +17985,7 @@ static ssize_t wlan_hdd_state_ctrl_param_write(struct file *filp,
 		rc = wait_for_completion_timeout(&wlan_start_comp,
 				msecs_to_jiffies(HDD_WLAN_START_WAIT_TIME));
 		if (!rc) {
-			pr_err("Timed-out!!");
+			hdd_err("Driver Loading Timed-out!!");
 			ret = -EINVAL;
 			return ret;
 		}