qcacld-3.0: Add support for NAN msg in kmsg

Add support for the following NAN messages in kmsg:-
1. NAN enable status
2. NAN, NDP match events
3. NDP channel info.
etc.

Change-Id: Icbf8f4ed05a7bd181a076d526dd2e01d70be6b05
CRs-Fixed: 2618835

components/nan/core/inc/nan_public_structs.h

@@ -612,6 +612,17 @@ struct nan_datapath_end_indication_event {
 	struct peer_nan_datapath_map ndp_map[];
 };
 
+/**
+ * struct nan_datapath_peer_ind - ndp peer indication
+ * @msg: msg received by FW
+ * @data_len: data length
+ *
+ */
+struct nan_dump_msg {
+	uint8_t *msg;
+	uint32_t data_len;
+};
+
 /**
  * struct nan_datapath_confirm_event - ndp confirmation event from FW
  * @vdev: pointer to vdev object

components/target_if/nan/src/target_if_nan.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -224,6 +224,42 @@ static QDF_STATUS target_if_nan_ndp_initiator_req(
 	return status;
 }
 
+static int target_if_nan_dmesg_handler(ol_scn_t scn, uint8_t *data,
+				       uint32_t data_len)
+{
+	QDF_STATUS status;
+	struct nan_dump_msg msg;
+	struct wmi_unified *wmi_handle;
+	struct wlan_objmgr_psoc *psoc;
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("psoc is null");
+		return -EINVAL;
+	}
+
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+	if (!wmi_handle) {
+		target_if_err("wmi_handle is null");
+		return -EINVAL;
+	}
+
+	status = wmi_extract_nan_msg(wmi_handle, data, &msg);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		target_if_err("parsing of event failed, %d", status);
+		return -EINVAL;
+	}
+
+	if (!msg.msg) {
+		target_if_err("msg not present %d", msg.data_len);
+		return -EINVAL;
+	}
+
+	target_if_info("%s", msg.msg);
+
+	return 0;
+}
+
 static int target_if_ndp_initiator_rsp_handler(ol_scn_t scn, uint8_t *data,
 						uint32_t len)
 {
@@ -968,6 +1004,15 @@ QDF_STATUS target_if_nan_register_events(struct wlan_objmgr_psoc *psoc)
 		return QDF_STATUS_E_FAILURE;
 	}
 
+	ret = wmi_unified_register_event_handler(handle, wmi_nan_dmesg_event_id,
+						 target_if_nan_dmesg_handler,
+						 WMI_RX_UMAC_CTX);
+	if (ret) {
+		target_if_err("wmi event registration failed, ret: %d", ret);
+		target_if_nan_deregister_events(psoc);
+		return QDF_STATUS_E_FAILURE;
+	}
+
 	ret = wmi_unified_register_event_handler(handle,
 		wmi_ndp_indication_event_id,
 		target_if_ndp_ind_handler,
@@ -1091,6 +1136,13 @@ QDF_STATUS target_if_nan_deregister_events(struct wlan_objmgr_psoc *psoc)
 		status = ret;
 	}
 
+	ret = wmi_unified_unregister_event_handler(handle,
+						   wmi_nan_dmesg_event_id);
+	if (ret) {
+		target_if_err("wmi event deregistration failed, ret: %d", ret);
+		status = ret;
+	}
+
 	ret = wmi_unified_unregister_event_handler(handle,
 				wmi_ndp_initiator_rsp_event_id);
 	if (ret) {