diff --git a/components/ocb/core/src/wlan_ocb_main.c b/components/ocb/core/src/wlan_ocb_main.c
new file mode 100644
index 0000000000..f5c653ab83
--- /dev/null
+++ b/components/ocb/core/src/wlan_ocb_main.c
@@ -0,0 +1,572 @@
+/*
+ * Copyright (c) 2018 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: contains core ocb function definitions
+ */
+
+#include <qdf_status.h>
+#include "scheduler_api.h"
+#include "wlan_objmgr_cmn.h"
+#include "wlan_objmgr_global_obj.h"
+#include "wlan_objmgr_psoc_obj.h"
+#include "wlan_objmgr_pdev_obj.h"
+#include "wlan_objmgr_vdev_obj.h"
+#include <cdp_txrx_handle.h>
+#include <cdp_txrx_cmn.h>
+#include <cdp_txrx_ocb.h>
+#include "wlan_ocb_main.h"
+#include "wlan_ocb_tgt_api.h"
+#include "target_if_ocb.h"
+
+/**
+ * ocb_get_cmd_type_str() - parse cmd to string
+ * @cmd_type: ocb cmd type
+ *
+ * This function parse ocb cmd to string.
+ *
+ * Return: command string
+ */
+static const char *ocb_get_evt_type_str(enum ocb_southbound_event evt_type)
+{
+	switch (evt_type) {
+	case OCB_CHANNEL_CONFIG_STATUS:
+		return "OCB channel config status";
+	case OCB_TSF_TIMER:
+		return "OCB TSF timer";
+	case OCB_DCC_STATS_RESPONSE:
+		return "OCB DCC get stats response";
+	case OCB_NDL_RESPONSE:
+		return "OCB NDL indication";
+	case OCB_DCC_INDICATION:
+		return "OCB DCC stats indication";
+	default:
+		return "Invalid OCB command";
+	}
+}
+
+/**
+ * ocb_set_chan_info() - Set channel info to dp
+ * @dp_soc: data path soc handle
+ * @dp_pdev: data path pdev handle
+ * @vdev_id: OCB vdev_id
+ * @config: channel config parameters
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_set_chan_info(void *dp_soc,
+				    void *dp_pdev,
+				    uint32_t vdev_id,
+				    struct ocb_config *config)
+{
+	struct cdp_vdev *dp_vdev;
+	struct ol_txrx_ocb_set_chan ocb_set_chan;
+	struct ol_txrx_ocb_chan_info *ocb_channel_info;
+
+	if (!dp_soc || !dp_pdev) {
+		ocb_err("DP global handle is null");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	dp_vdev = cdp_get_vdev_from_vdev_id(dp_soc, dp_pdev, vdev_id);
+	if (!dp_vdev) {
+		ocb_err("DP vdev handle is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	ocb_set_chan.ocb_channel_count = config->channel_count;
+
+	/* release old settings */
+	ocb_channel_info = cdp_get_ocb_chan_info(dp_soc, dp_vdev);
+	if (ocb_channel_info)
+		qdf_mem_free(ocb_channel_info);
+
+	if (config->channel_count) {
+		int i, buf_size;
+
+		buf_size = sizeof(*ocb_channel_info) * config->channel_count;
+		ocb_set_chan.ocb_channel_info = qdf_mem_malloc(buf_size);
+		if (!ocb_set_chan.ocb_channel_info) {
+			ocb_err("Failed to allocate buffer for chan info");
+			return QDF_STATUS_E_NOMEM;
+		}
+		ocb_channel_info = ocb_set_chan.ocb_channel_info;
+		for (i = 0; i < config->channel_count; i++) {
+			ocb_channel_info[i].chan_freq =
+				config->channels[i].chan_freq;
+			if (config->channels[i].flags &
+				OCB_CHANNEL_FLAG_DISABLE_RX_STATS_HDR)
+				ocb_channel_info[i].disable_rx_stats_hdr = 1;
+		}
+	} else {
+		ocb_debug("No channel config to dp");
+		ocb_set_chan.ocb_channel_info = NULL;
+	}
+	ocb_debug("Sync channel config to dp");
+	cdp_set_ocb_chan_info(dp_soc, dp_vdev, ocb_set_chan);
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * ocb_channel_config_status() - Process set channel config response
+ * @evt: response event
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_channel_config_status(struct ocb_rx_event *evt)
+{
+	QDF_STATUS status;
+	uint32_t vdev_id;
+	struct ocb_rx_event *event;
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_pdev *pdev;
+	struct ocb_pdev_obj *ocb_obj;
+	struct ocb_callbacks *cbs;
+	struct ocb_set_config_response config_rsp;
+
+	if (!evt) {
+		ocb_err("Event buffer is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+	event = evt;
+	psoc = event->psoc;
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0, WLAN_OCB_SB_ID);
+	if (!pdev) {
+		ocb_alert("Pdev is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	ocb_obj = wlan_get_pdev_ocb_obj(pdev);
+	if (!ocb_obj) {
+		ocb_err("Pdev object is NULL");
+		status = QDF_STATUS_E_INVAL;
+		goto exit;
+	}
+
+	cbs = &ocb_obj->ocb_cbs;
+	if (ocb_obj->channel_config) {
+		vdev_id = ocb_obj->channel_config->vdev_id;
+		config_rsp = event->rsp.channel_cfg_rsp;
+
+		/* Sync channel status to data path */
+		if (config_rsp.status == OCB_CHANNEL_CONFIG_SUCCESS)
+			ocb_set_chan_info(ocb_obj->dp_soc,
+					  ocb_obj->dp_pdev,
+					  vdev_id,
+					  ocb_obj->channel_config);
+		qdf_mem_free(ocb_obj->channel_config);
+		ocb_obj->channel_config = NULL;
+	} else {
+		ocb_err("Failed to sync channel info to DP");
+		config_rsp.status = OCB_CHANNEL_CONFIG_FAIL;
+	}
+
+	if (cbs->ocb_set_config_callback) {
+		cbs->ocb_set_config_callback(cbs->ocb_set_config_context,
+					     &config_rsp);
+		status = QDF_STATUS_SUCCESS;
+	} else {
+		ocb_err("ocb_set_config_resp_cb is NULL");
+		status = QDF_STATUS_E_INVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+
+	return status;
+}
+
+/**
+ * ocb_tsf_timer() - Process get TSF timer response
+ * @evt: repsonse event
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_tsf_timer(struct ocb_rx_event *evt)
+{
+	QDF_STATUS status;
+	struct ocb_rx_event *event;
+	struct wlan_objmgr_vdev *vdev;
+	struct wlan_objmgr_pdev *pdev;
+	struct ocb_callbacks *cbs;
+	struct ocb_get_tsf_timer_response *tsf_timer;
+
+	if (!evt) {
+		ocb_err("Event buffer is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+	event = evt;
+	vdev = event->vdev;
+	pdev = wlan_vdev_get_pdev(vdev);
+	cbs = wlan_ocb_get_callbacks(pdev);
+	tsf_timer = &event->rsp.tsf_timer;
+	ocb_debug("TSF timer low=%d, high=%d",
+		  tsf_timer->timer_low, tsf_timer->timer_high);
+	if (cbs && cbs->ocb_get_tsf_timer_callback) {
+		ocb_debug("%s: send TSF timer.", __func__);
+		cbs->ocb_get_tsf_timer_callback(cbs->ocb_get_tsf_timer_context,
+						tsf_timer);
+		status = QDF_STATUS_SUCCESS;
+	} else {
+		ocb_err("ocb_get_tsf_timer_cb is NULL");
+		status = QDF_STATUS_E_FAILURE;
+	}
+
+	return status;
+}
+
+/**
+ * ocb_dcc_stats_response() - Process get DCC stats response
+ * @evt: repsonse event
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_dcc_stats_response(struct ocb_rx_event *evt)
+{
+	QDF_STATUS status;
+	struct ocb_rx_event *event;
+	struct wlan_objmgr_vdev *vdev;
+	struct wlan_objmgr_pdev *pdev;
+	struct ocb_callbacks *cbs;
+	struct ocb_dcc_get_stats_response *dcc_stats;
+
+	if (!evt) {
+		ocb_err("Event buffer is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	event = evt;
+	vdev = event->vdev;
+	pdev = wlan_vdev_get_pdev(vdev);
+	cbs = wlan_ocb_get_callbacks(pdev);
+	dcc_stats = &event->rsp.dcc_stats;
+	if (cbs && cbs->ocb_dcc_get_stats_callback) {
+		ocb_debug("%s: send DCC stats", __func__);
+		cbs->ocb_dcc_get_stats_callback(cbs->ocb_dcc_get_stats_context,
+						dcc_stats);
+		status = QDF_STATUS_SUCCESS;
+	} else {
+		ocb_err("dcc_get_stats_cb is NULL");
+		status = QDF_STATUS_E_FAILURE;
+	}
+
+	return status;
+}
+
+/**
+ * ocb_ndl_response() - Process NDL update response
+ * @evt: repsonse event
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_ndl_response(struct ocb_rx_event *evt)
+{
+	QDF_STATUS status;
+	struct ocb_rx_event *event;
+	struct wlan_objmgr_vdev *vdev;
+	struct wlan_objmgr_pdev *pdev;
+	struct ocb_callbacks *cbs;
+	struct ocb_dcc_update_ndl_response *ndl;
+
+	if (!evt) {
+		ocb_err("Event buffer is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+	event = evt;
+	vdev = event->vdev;
+	pdev = wlan_vdev_get_pdev(vdev);
+	cbs = wlan_ocb_get_callbacks(pdev);
+	ndl = &event->rsp.ndl;
+	if (cbs && cbs->ocb_dcc_update_ndl_callback) {
+		ocb_debug("%s: NDL update response", __func__);
+		cbs->ocb_dcc_update_ndl_callback(
+				cbs->ocb_dcc_update_ndl_context, ndl);
+		status = QDF_STATUS_SUCCESS;
+	} else {
+		ocb_err("dcc_update_ndl is NULL");
+		status = QDF_STATUS_E_FAILURE;
+	}
+
+	return status;
+}
+
+/**
+ * ocb_dcc_indication() - Process DCC stats indication
+ * @evt: repsonse event
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS ocb_dcc_indication(struct ocb_rx_event *evt)
+{
+	QDF_STATUS status;
+	struct ocb_rx_event *event;
+	struct wlan_objmgr_vdev *vdev;
+	struct ocb_callbacks *cbs;
+	struct wlan_objmgr_pdev *pdev;
+	struct ocb_dcc_get_stats_response *dcc_stats;
+
+	if (!evt) {
+		ocb_err("Event buffer is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	event = evt;
+	vdev = event->vdev;
+	pdev = wlan_vdev_get_pdev(vdev);
+	cbs = wlan_ocb_get_callbacks(pdev);
+	dcc_stats = &event->rsp.dcc_stats;
+	if (cbs && cbs->ocb_dcc_stats_event_callback) {
+		ocb_debug("%s: DCC stats indication", __func__);
+		cbs->ocb_dcc_stats_event_callback(
+				cbs->ocb_dcc_stats_event_context, dcc_stats);
+		status = QDF_STATUS_SUCCESS;
+	} else {
+		ocb_err("dcc_get_stats_cb is NULL");
+		status = QDF_STATUS_E_FAILURE;
+	}
+
+	return status;
+}
+
+/**
+ * ocb_flush_start_msg() - Flush ocb start message
+ * @msg: OCB start vdev message
+ *
+ * Return: QDF_STATUS_SUCCESS on success.
+ */
+static QDF_STATUS ocb_flush_start_msg(struct scheduler_msg *msg)
+{
+	struct ocb_pdev_obj *ocb_obj;
+
+	if (!msg) {
+		ocb_err("Null point for OCB message");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	ocb_obj = msg->bodyptr;
+	if (ocb_obj && ocb_obj->channel_config) {
+		ocb_info("release the backed config parameters");
+		qdf_mem_free(ocb_obj->channel_config);
+		ocb_obj->channel_config = NULL;
+	}
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * ocb_process_start_vdev_msg() - Handler for OCB vdev start message
+ * @msg: OCB start vdev message
+ *
+ * Return: QDF_STATUS_SUCCESS on success.
+ */
+static QDF_STATUS ocb_process_start_vdev_msg(struct scheduler_msg *msg)
+{
+	QDF_STATUS status;
+	struct ocb_config *config;
+	struct ocb_pdev_obj *ocb_obj;
+	struct ocb_callbacks *ocb_cbs;
+	struct wlan_objmgr_vdev *vdev;
+
+	if (!msg || !msg->bodyptr) {
+		ocb_err("invalid message");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	ocb_obj = msg->bodyptr;
+	ocb_cbs = &ocb_obj->ocb_cbs;
+	if (!ocb_cbs->start_ocb_vdev) {
+		ocb_err("No callback to start ocb vdev");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	config = ocb_obj->channel_config;
+	if (!config) {
+		ocb_err("NULL config parameters");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_pdev(ocb_obj->pdev,
+						    config->vdev_id,
+						    WLAN_OCB_SB_ID);
+	if (!vdev) {
+		ocb_err("Cannot get vdev");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	ocb_debug("Start to send OCB vdev start cmd");
+	status = ocb_cbs->start_ocb_vdev(config);
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_OCB_SB_ID);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ocb_err("Failed to start OCB vdev");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	return QDF_STATUS_SUCCESS;
+}
+
+QDF_STATUS ocb_vdev_start(struct ocb_pdev_obj *ocb_obj)
+{
+	QDF_STATUS status;
+	struct scheduler_msg msg = {0};
+
+	msg.bodyptr = ocb_obj;
+	msg.callback = ocb_process_start_vdev_msg;
+	msg.flush_callback = ocb_flush_start_msg;
+	status = scheduler_post_msg(QDF_MODULE_ID_TARGET_IF, &msg);
+	if (QDF_IS_STATUS_ERROR(status))
+		ocb_err("Failed to post vdev start message");
+
+	return status;
+}
+
+QDF_STATUS ocb_process_evt(struct scheduler_msg *msg)
+{
+	QDF_STATUS status;
+	struct ocb_rx_event *event;
+
+	ocb_debug("msg type %d, %s", msg->type,
+		  ocb_get_evt_type_str(msg->type));
+
+	if (!(msg->bodyptr)) {
+		ocb_err("Invalid message body");
+		return QDF_STATUS_E_INVAL;
+	}
+	event = msg->bodyptr;
+	switch (msg->type) {
+	case OCB_CHANNEL_CONFIG_STATUS:
+		status = ocb_channel_config_status(event);
+		break;
+	case OCB_TSF_TIMER:
+		status = ocb_tsf_timer(event);
+		break;
+	case OCB_DCC_STATS_RESPONSE:
+		status = ocb_dcc_stats_response(event);
+		break;
+	case OCB_NDL_RESPONSE:
+		status = ocb_ndl_response(event);
+		break;
+	case OCB_DCC_INDICATION:
+		status = ocb_dcc_indication(event);
+		break;
+	default:
+		status = QDF_STATUS_E_INVAL;
+		break;
+	}
+
+	wlan_ocb_release_rx_event(event);
+	msg->bodyptr = NULL;
+
+	return status;
+}
+
+struct ocb_config *ocb_copy_config(struct ocb_config *src)
+{
+	struct ocb_config *dst;
+	uint32_t length;
+	uint8_t *cursor;
+
+	length = sizeof(*src) +
+		src->channel_count * sizeof(*src->channels) +
+		src->schedule_size * sizeof(*src->schedule) +
+		src->dcc_ndl_chan_list_len +
+		src->dcc_ndl_active_state_list_len;
+
+	dst = qdf_mem_malloc(length);
+	if (!dst)
+		return NULL;
+
+	*dst = *src;
+
+	cursor = (uint8_t *)dst;
+	cursor += sizeof(*dst);
+	dst->channels = (struct ocb_config_chan *)cursor;
+	cursor += src->channel_count * sizeof(*dst->channels);
+	qdf_mem_copy(dst->channels, src->channels,
+		     src->channel_count * sizeof(*dst->channels));
+	dst->schedule = (struct ocb_config_schdl *)cursor;
+	cursor += src->schedule_size * sizeof(*dst->schedule);
+	qdf_mem_copy(dst->schedule, src->schedule,
+		     src->schedule_size * sizeof(*dst->schedule));
+	dst->dcc_ndl_chan_list = cursor;
+	cursor += src->dcc_ndl_chan_list_len;
+	qdf_mem_copy(dst->dcc_ndl_chan_list, src->dcc_ndl_chan_list,
+		     src->dcc_ndl_chan_list_len);
+	dst->dcc_ndl_active_state_list = cursor;
+	cursor += src->dcc_ndl_active_state_list_len;
+	qdf_mem_copy(dst->dcc_ndl_active_state_list,
+		     src->dcc_ndl_active_state_list,
+		     src->dcc_ndl_active_state_list_len);
+
+	return dst;
+}
+
+QDF_STATUS ocb_pdev_obj_create_notification(struct wlan_objmgr_pdev *pdev,
+					    void *arg_list)
+{
+	QDF_STATUS status;
+	struct ocb_pdev_obj *ocb_obj;
+
+	ocb_notice("ocb pdev created");
+	ocb_obj = qdf_mem_malloc(sizeof(*ocb_obj));
+	if (!ocb_obj) {
+		ocb_err("Failed to allocate memory for ocb pdev object");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	status = wlan_objmgr_pdev_component_obj_attach(pdev,
+						       WLAN_UMAC_COMP_OCB,
+						       (void *)ocb_obj,
+						       QDF_STATUS_SUCCESS);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ocb_err("Failed to attach pdev ocb component");
+		qdf_mem_free(ocb_obj);
+		return status;
+	}
+	ocb_obj->pdev = pdev;
+
+	/* register OCB tx/rx ops */
+	tgt_ocb_register_rx_ops(&ocb_obj->ocb_rxops);
+	target_if_ocb_register_tx_ops(&ocb_obj->ocb_txops);
+	ocb_notice("ocb pdev attached");
+
+	return status;
+}
+
+QDF_STATUS ocb_pdev_obj_destroy_notification(struct wlan_objmgr_pdev *pdev,
+					     void *arg_list)
+{
+	QDF_STATUS status;
+	struct ocb_pdev_obj *ocb_obj;
+
+	ocb_obj = wlan_objmgr_pdev_get_comp_private_obj(pdev,
+							WLAN_UMAC_COMP_OCB);
+	if (!ocb_obj) {
+		ocb_err("Failed to get ocb pdev object");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	status = wlan_objmgr_pdev_component_obj_detach(pdev,
+						       WLAN_UMAC_COMP_OCB,
+						       ocb_obj);
+	if (QDF_IS_STATUS_ERROR(status))
+		ocb_err("Failed to detatch ocb pdev object");
+
+	qdf_mem_free(ocb_obj);
+
+	return QDF_STATUS_SUCCESS;
+}
diff --git a/components/ocb/dispatcher/inc/wlan_ocb_tgt_api.h b/components/ocb/dispatcher/inc/wlan_ocb_tgt_api.h
new file mode 100644
index 0000000000..4456f603b9
--- /dev/null
+++ b/components/ocb/dispatcher/inc/wlan_ocb_tgt_api.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: OCB south bound interface declaration
+ */
+#ifndef _WLAN_OCB_TGT_API_H
+#define _WLAN_OCB_TGT_API_H
+#include <wlan_ocb_public_structs.h>
+
+/**
+ * tgt_ocb_register_ev_handler() - register south bound event handler
+ * @pdev: pdev handle
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+QDF_STATUS tgt_ocb_register_ev_handler(struct wlan_objmgr_pdev *pdev);
+
+/**
+ * tgt_ocb_unregister_ev_handler() - unregister south bound event handler
+ * @pdev: pdev handle
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+QDF_STATUS tgt_ocb_unregister_ev_handler(struct wlan_objmgr_pdev *pdev);
+
+/**
+ * tgt_ocb_register_rx_ops() - register OCB rx operations
+ * @ocb_rxops: fps to rx operations
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+QDF_STATUS tgt_ocb_register_rx_ops(struct wlan_ocb_rx_ops *ocb_rxops);
+#endif
diff --git a/components/ocb/dispatcher/src/wlan_ocb_tgt_api.c b/components/ocb/dispatcher/src/wlan_ocb_tgt_api.c
new file mode 100644
index 0000000000..a56329c5c7
--- /dev/null
+++ b/components/ocb/dispatcher/src/wlan_ocb_tgt_api.c
@@ -0,0 +1,336 @@
+/*
+ * Copyright (c) 2018 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: This file contains ocb south bound interface definitions
+ */
+
+#include <scheduler_api.h>
+#include <wlan_objmgr_psoc_obj.h>
+#include <wlan_objmgr_global_obj.h>
+#include <wlan_objmgr_pdev_obj.h>
+#include <wlan_objmgr_vdev_obj.h>
+#include "wlan_ocb_public_structs.h"
+#include "wlan_ocb_ucfg_api.h"
+#include "wlan_ocb_tgt_api.h"
+#include "wlan_ocb_main.h"
+
+/**
+ * wlan_ocb_flush_callback() - OCB message flash callback
+ * @msg: OCB message
+ *
+ * Return: QDF_STATUS_SUCCESS on success.
+ */
+static QDF_STATUS wlan_ocb_flush_callback(struct scheduler_msg *msg)
+{
+	struct ocb_rx_event *event;
+
+	if (!msg) {
+		ocb_err("Null point for OCB message");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	event = msg->bodyptr;
+	wlan_ocb_release_rx_event(event);
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * tgt_ocb_channel_config_status() - handler for channel config response
+ * @psoc: psoc handle
+ * @status: status for last channel config
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+tgt_ocb_channel_config_status(struct wlan_objmgr_psoc *psoc,
+			      uint32_t status)
+{
+	QDF_STATUS qdf_status;
+	struct scheduler_msg msg = {0};
+	struct ocb_rx_event *event;
+
+	event = qdf_mem_malloc(sizeof(*event));
+	if (!event) {
+		ocb_err("Memory malloc failed for channel config status");
+		return QDF_STATUS_E_NOMEM;
+	}
+
+	qdf_status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_OCB_SB_ID);
+	if (QDF_IS_STATUS_ERROR(qdf_status)) {
+		ocb_err("Failed to get psoc ref");
+		wlan_ocb_release_rx_event(event);
+		return qdf_status;
+	}
+	event->psoc = psoc;
+	event->rsp.channel_cfg_rsp.status = status;
+	event->evt_id = OCB_CHANNEL_CONFIG_STATUS;
+	msg.type = OCB_CHANNEL_CONFIG_STATUS;
+	msg.bodyptr = event;
+	msg.callback = ocb_process_evt;
+	msg.flush_callback = wlan_ocb_flush_callback;
+	qdf_status = scheduler_post_msg(QDF_MODULE_ID_TARGET_IF, &msg);
+
+	if (QDF_IS_STATUS_SUCCESS(qdf_status))
+		return QDF_STATUS_SUCCESS;
+
+	ocb_err("failed to send OCB_CHANNEL_CONFIG_STATUS msg");
+	wlan_ocb_release_rx_event(event);
+
+	return qdf_status;
+}
+
+/**
+ * tgt_ocb_get_tsf_timer() - handle for TSF timer response
+ * @psoc: psoc handle
+ * @response: TSF timer response
+ *
+ * Return: QDF_STATUS_SUCCESS on succcess
+ */
+static QDF_STATUS
+tgt_ocb_get_tsf_timer(struct wlan_objmgr_psoc *psoc,
+		      struct ocb_get_tsf_timer_response *response)
+{
+	QDF_STATUS status;
+	struct scheduler_msg msg = {0};
+	struct ocb_rx_event *event;
+
+	event = qdf_mem_malloc(sizeof(*event));
+	if (!event) {
+		ocb_err("Memory malloc failed for tsf timer");
+		return QDF_STATUS_E_NOMEM;
+	}
+
+	status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_OCB_SB_ID);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ocb_err("Failed to get psoc ref");
+		goto flush_ref;
+	}
+	event->psoc = psoc;
+	event->vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+							   response->vdev_id,
+							   WLAN_OCB_SB_ID);
+	if (!event->vdev) {
+		ocb_err("Cannot get vdev handle");
+		status = QDF_STATUS_E_FAILURE;
+		goto flush_ref;
+	}
+
+	event->evt_id = OCB_TSF_TIMER;
+	event->rsp.tsf_timer.vdev_id = response->vdev_id;
+	event->rsp.tsf_timer.timer_high = response->timer_high;
+	event->rsp.tsf_timer.timer_low = response->timer_low;
+	msg.type = OCB_TSF_TIMER;
+	msg.bodyptr = event;
+	msg.callback = ocb_process_evt;
+	msg.flush_callback = wlan_ocb_flush_callback;
+
+	status = scheduler_post_msg(QDF_MODULE_ID_TARGET_IF, &msg);
+	if (QDF_IS_STATUS_SUCCESS(status))
+		return QDF_STATUS_SUCCESS;
+
+	ocb_err("failed to send OCB_TSF_TIMER msg");
+flush_ref:
+	wlan_ocb_release_rx_event(event);
+
+	return status;
+}
+
+/**
+ * tgt_ocb_dcc_ndl_update() - handler for NDL update response
+ * @psoc: psoc handle
+ * @resp: NDL update response
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+tgt_ocb_dcc_ndl_update(struct wlan_objmgr_psoc *psoc,
+		       struct ocb_dcc_update_ndl_response *resp)
+{
+	QDF_STATUS status;
+	struct scheduler_msg msg = {0};
+	struct ocb_rx_event *event;
+
+	event = qdf_mem_malloc(sizeof(*event));
+	if (!event) {
+		ocb_err("Memory malloc failed for ndl update response");
+		return QDF_STATUS_E_NOMEM;
+	}
+
+	status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_OCB_SB_ID);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ocb_err("Failed to get psoc ref");
+		goto flush_ref;
+	}
+	event->psoc = psoc;
+	event->vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+							   resp->vdev_id,
+							   WLAN_OCB_SB_ID);
+	if (!event->vdev) {
+		ocb_err("Cannot get vdev handle");
+		status = QDF_STATUS_E_FAILURE;
+		goto flush_ref;
+	}
+
+	event->evt_id = OCB_NDL_RESPONSE;
+	qdf_mem_copy(&event->rsp.ndl, resp, sizeof(*resp));
+	msg.type = OCB_NDL_RESPONSE;
+	msg.bodyptr = event;
+	msg.callback = ocb_process_evt;
+	msg.flush_callback = wlan_ocb_flush_callback;
+
+	status = scheduler_post_msg(QDF_MODULE_ID_TARGET_IF, &msg);
+	if (QDF_IS_STATUS_SUCCESS(status))
+		return QDF_STATUS_SUCCESS;
+
+	ocb_err("failed to send OCB_NDL_RESPONSE msg");
+flush_ref:
+	wlan_ocb_release_rx_event(event);
+
+	return status;
+}
+
+/**
+ * tgt_ocb_dcc_stats_indicate() - handler for DCC stats indication
+ * @psoc: psoc handle
+ * @response: DCC stats
+ * @bool: true for active query, false for passive indicate
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+tgt_ocb_dcc_stats_indicate(struct wlan_objmgr_psoc *psoc,
+			   struct ocb_dcc_get_stats_response *response,
+			   bool active)
+{
+	QDF_STATUS status;
+	uint8_t *buf;
+	uint32_t size;
+	struct scheduler_msg msg = {0};
+	struct ocb_rx_event *event;
+
+	size = sizeof(*event) +
+		response->channel_stats_array_len;
+	buf = qdf_mem_malloc(size);
+	if (!buf) {
+		ocb_err("Memory malloc failed for dcc indication");
+		return QDF_STATUS_E_NOMEM;
+	}
+	event = (struct ocb_rx_event *)buf;
+	status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_OCB_SB_ID);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		ocb_err("Failed to get psoc ref");
+		goto flush_ref;
+	}
+	event->psoc = psoc;
+	event->vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+							   response->vdev_id,
+							   WLAN_OCB_SB_ID);
+	if (!event->vdev) {
+		ocb_err("Cannot get vdev handle");
+		status = QDF_STATUS_E_FAILURE;
+		goto flush_ref;
+	}
+
+	event->rsp.dcc_stats.channel_stats_array =
+		(uint8_t *)&event->rsp.dcc_stats +
+		sizeof(struct ocb_dcc_get_stats_response);
+	event->rsp.dcc_stats.vdev_id = response->vdev_id;
+	event->rsp.dcc_stats.num_channels = response->num_channels;
+	event->rsp.dcc_stats.channel_stats_array_len =
+		response->channel_stats_array_len;
+	qdf_mem_copy(event->rsp.dcc_stats.channel_stats_array,
+		     response->channel_stats_array,
+		     response->channel_stats_array_len);
+	ocb_debug("Message type is %s",
+		  active ? "Get stats response" : "DCC stats indication");
+	if (active)
+		msg.type = OCB_DCC_STATS_RESPONSE;
+	else
+		msg.type = OCB_DCC_INDICATION;
+	event->evt_id = msg.type;
+	msg.bodyptr = event;
+	msg.callback = ocb_process_evt;
+	msg.flush_callback = wlan_ocb_flush_callback;
+
+	status = scheduler_post_msg(QDF_MODULE_ID_TARGET_IF, &msg);
+	if (QDF_IS_STATUS_SUCCESS(status))
+		return QDF_STATUS_SUCCESS;
+
+	ocb_err("failed to send DCC stats msg(%d)", msg.type);
+flush_ref:
+	wlan_ocb_release_rx_event(event);
+
+	return status;
+}
+
+QDF_STATUS tgt_ocb_register_ev_handler(struct wlan_objmgr_pdev *pdev)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_ocb_tx_ops *ocb_ops;
+	QDF_STATUS status = QDF_STATUS_E_FAILURE;
+
+	psoc = wlan_pdev_get_psoc(pdev);
+	if (!psoc) {
+		ocb_err("Null soc handle");
+		return QDF_STATUS_E_INVAL;
+	}
+	ocb_ops = wlan_pdev_get_ocb_tx_ops(pdev);
+	if (ocb_ops && ocb_ops->ocb_reg_ev_handler) {
+		status = ocb_ops->ocb_reg_ev_handler(psoc, NULL);
+		ocb_debug("register ocb event, status:%d", status);
+	} else {
+		ocb_alert("No ocb objects or ocb_reg_ev_handler");
+	}
+
+	return status;
+}
+
+QDF_STATUS tgt_ocb_unregister_ev_handler(struct wlan_objmgr_pdev *pdev)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_ocb_tx_ops *ocb_ops;
+	QDF_STATUS status;
+
+	psoc = wlan_pdev_get_psoc(pdev);
+	if (!psoc) {
+		ocb_err("Null soc handle");
+		return QDF_STATUS_E_INVAL;
+	}
+	ocb_ops = wlan_pdev_get_ocb_tx_ops(pdev);
+	if (ocb_ops && ocb_ops->ocb_unreg_ev_handler) {
+		status = ocb_ops->ocb_unreg_ev_handler(psoc, NULL);
+		ocb_debug("unregister ocb event, status:%d", status);
+	} else {
+		ocb_alert("No ocb objects or ocb_unreg_ev_handler");
+		status = QDF_STATUS_E_FAILURE;
+	}
+
+	return status;
+}
+
+QDF_STATUS tgt_ocb_register_rx_ops(struct wlan_ocb_rx_ops *ocb_rxops)
+{
+	ocb_rxops->ocb_set_config_status = tgt_ocb_channel_config_status;
+	ocb_rxops->ocb_tsf_timer = tgt_ocb_get_tsf_timer;
+	ocb_rxops->ocb_dcc_ndl_update = tgt_ocb_dcc_ndl_update;
+	ocb_rxops->ocb_dcc_stats_indicate = tgt_ocb_dcc_stats_indicate;
+
+	return QDF_STATUS_SUCCESS;
+}
diff --git a/components/target_if/ocb/inc/target_if_ocb.h b/components/target_if/ocb/inc/target_if_ocb.h
new file mode 100644
index 0000000000..13f9afb9c8
--- /dev/null
+++ b/components/target_if/ocb/inc/target_if_ocb.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2018 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: offload lmac interface APIs for ocb
+ *
+ */
+
+#ifndef __TARGET_IF_OCB_H__
+#define __TARGET_IF_OCB_H__
+
+/**
+ * target_if_ocb_register_event_handler() - lmac handler to register ocb event
+ * handler
+ * @psoc : psoc object
+ * @arg: argument passed to lmac
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS target_if_ocb_register_event_handler(struct wlan_objmgr_psoc *psoc,
+						void *arg);
+
+/**
+ * target_if_ocb_unregister_event_handler() - lmac handler to unregister ocb
+ * event handler
+ * @psoc : psoc object
+ * @arg: argument passed to lmac
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS target_if_ocb_unregister_event_handler(struct wlan_objmgr_psoc *psoc,
+						  void *arg);
+/**
+ * target_if_ocb_register_tx_ops() - lmac handler to register ocb tx ops
+ * callback functions
+ * @tx_ops: ocb tx operations
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS target_if_ocb_register_tx_ops(
+		struct wlan_ocb_tx_ops *tx_ops);
+
+#endif
diff --git a/components/target_if/ocb/src/target_if_ocb.c b/components/target_if/ocb/src/target_if_ocb.c
new file mode 100644
index 0000000000..6d66294b84
--- /dev/null
+++ b/components/target_if/ocb/src/target_if_ocb.c
@@ -0,0 +1,696 @@
+/*
+ * Copyright (c) 2018 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
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: offload lmac interface APIs for ocb
+ *
+ */
+
+#include <qdf_mem.h>
+#include <target_if.h>
+#include <qdf_status.h>
+#include <wmi_unified_api.h>
+#include <wmi_unified_priv.h>
+#include <wmi_unified_param.h>
+#include <wlan_objmgr_psoc_obj.h>
+#include <wlan_utility.h>
+#include <wlan_defs.h>
+#include <wlan_ocb_public_structs.h>
+#include <wlan_ocb_main.h>
+#include <target_if_ocb.h>
+
+/**
+ * target_if_ocb_get_rx_ops() - get target interface RX operations
+ * @pdev: pdev handle
+ *
+ * Return: fp to target interface RX operations
+ */
+static inline struct wlan_ocb_rx_ops *
+target_if_ocb_get_rx_ops(struct wlan_objmgr_pdev *pdev)
+{
+	struct ocb_pdev_obj *ocb_obj;
+
+	ocb_obj = wlan_get_pdev_ocb_obj(pdev);
+
+	return &ocb_obj->ocb_rxops;
+}
+
+/**
+ * target_if_ocb_set_config() - send the OCB config to the FW
+ * @psoc: pointer to PSOC object
+ * @config: OCB channel configuration
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS target_if_ocb_set_config(struct wlan_objmgr_psoc *psoc,
+					   struct ocb_config *config)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_ocb_set_config(GET_WMI_HDL_FROM_PSOC(psoc),
+					    config);
+	if (status)
+		target_if_err("Failed to set OCB config %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_ocb_set_utc_time() - send the UTC time to the firmware
+ * @psoc: pointer to PSOC object
+ * @utc: pointer to the UTC time structure
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS target_if_ocb_set_utc_time(struct wlan_objmgr_psoc *psoc,
+					     struct ocb_utc_param *utc)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_ocb_set_utc_time_cmd(GET_WMI_HDL_FROM_PSOC(psoc),
+						  utc);
+	if (status)
+		target_if_err("Failed to set OCB UTC time %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_ocb_start_timing_advert() - start sending the timing
+ *  advertisement frame on a channel
+ * @psoc: pointer to PSOC object
+ * @ta: pointer to the timing advertisement
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_ocb_start_timing_advert(struct wlan_objmgr_psoc *psoc,
+				  struct ocb_timing_advert_param *ta)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_ocb_start_timing_advert(
+			GET_WMI_HDL_FROM_PSOC(psoc), ta);
+	if (status)
+		target_if_err("Failed to start OCB timing advert %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_ocb_stop_timing_advert() - stop sending the timing
+ *   advertisement frame on a channel
+ * @psoc: pointer to PSOC object
+ * @ta: pointer to the timing advertisement
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_ocb_stop_timing_advert(struct wlan_objmgr_psoc *psoc,
+				 struct ocb_timing_advert_param *ta)
+{
+	QDF_STATUS status;
+
+	status =
+		wmi_unified_ocb_stop_timing_advert(GET_WMI_HDL_FROM_PSOC(psoc),
+						   ta);
+	if (status)
+		target_if_err("Failed to stop OCB timing advert %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_ocb_get_tsf_timer() - get tsf timer
+ * @psoc: pointer to PSOC object
+ * @request: pointer to the request
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_ocb_get_tsf_timer(struct wlan_objmgr_psoc *psoc,
+			    struct ocb_get_tsf_timer_param *request)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_ocb_get_tsf_timer(GET_WMI_HDL_FROM_PSOC(psoc),
+					       request);
+	if (status)
+		target_if_err("Failed to send get tsf timer cmd: %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_dcc_get_stats() - get the DCC channel stats
+ * @psoc: pointer to PSOC object
+ * @get_stats_param: pointer to the dcc stats request
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_dcc_get_stats(struct wlan_objmgr_psoc *psoc,
+			struct ocb_dcc_get_stats_param *get_stats_param)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_dcc_get_stats_cmd(GET_WMI_HDL_FROM_PSOC(psoc),
+					       get_stats_param);
+	if (status)
+		target_if_err("Failed to send get DCC stats cmd: %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_dcc_clear_stats() - send command to clear the DCC stats
+ * @psoc: pointer to PSOC object
+ * @clear_stats_param: parameters to the command
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_dcc_clear_stats(struct wlan_objmgr_psoc *psoc,
+			  struct ocb_dcc_clear_stats_param *clear_stats_param)
+{
+	QDF_STATUS status;
+
+	status = wmi_unified_dcc_clear_stats(GET_WMI_HDL_FROM_PSOC(psoc),
+					     clear_stats_param);
+	if (status)
+		target_if_err("Failed to send clear DCC stats cmd: %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_dcc_update_ndl() - command to update the NDL data
+ * @psoc: pointer to PSOC object
+ * @update_ndl_param: pointer to the request parameters
+ *
+ * Return: QDF_STATUS_SUCCESS on success
+ */
+static QDF_STATUS
+target_if_dcc_update_ndl(struct wlan_objmgr_psoc *psoc,
+			 struct ocb_dcc_update_ndl_param *update_ndl_param)
+{
+	QDF_STATUS status;
+
+	/* Send the WMI command */
+	status = wmi_unified_dcc_update_ndl(GET_WMI_HDL_FROM_PSOC(psoc),
+					    update_ndl_param);
+	if (status)
+		target_if_err("Failed to send NDL update cmd: %d", status);
+
+	return status;
+}
+
+/**
+ * target_if_ocb_set_config_resp() - handler for channel config response
+ * @scn: scn handle
+ * @event_buf: pointer to the event buffer
+ * @len: length of the buffer
+ *
+ * Return: 0 on success
+ */
+static int
+target_if_ocb_set_config_resp(ol_scn_t scn, uint8_t *event_buf,
+			      uint32_t len)
+{
+	int rc;
+	QDF_STATUS status;
+	uint32_t resp;
+	struct wlan_objmgr_pdev *pdev;
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_ocb_rx_ops *ocb_rx_ops;
+
+	target_if_debug("scn:%pK, data:%pK, datalen:%d",
+			scn, event_buf, len);
+	if (!scn || !event_buf) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, event_buf);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0,
+					  WLAN_OCB_SB_ID);
+	if (!pdev) {
+		target_if_err("pdev is NULL");
+		return -EINVAL;
+	}
+
+	ocb_rx_ops = target_if_ocb_get_rx_ops(pdev);
+	if (ocb_rx_ops->ocb_set_config_status) {
+		status = wmi_extract_ocb_set_channel_config_resp(
+					GET_WMI_HDL_FROM_PSOC(psoc),
+					event_buf, &resp);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("Failed to extract config status");
+			rc = -EINVAL;
+			goto exit;
+		}
+		status = ocb_rx_ops->ocb_set_config_status(psoc, resp);
+		if (status != QDF_STATUS_SUCCESS) {
+			target_if_err("ocb_set_config_status failed.");
+			rc = -EINVAL;
+			goto exit;
+		}
+		rc = 0;
+	} else {
+		target_if_fatal("No ocb_set_config_status callback");
+		rc = -EINVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+
+	return rc;
+};
+
+/**
+ * target_if_ocb_get_tsf_timer_resp() - handler for TSF timer response
+ * @scn: scn handle
+ * @event_buf: pointer to the event buffer
+ * @len: length of the buffer
+ *
+ * Return: 0 on success
+ */
+static int target_if_ocb_get_tsf_timer_resp(ol_scn_t scn,
+					    uint8_t *event_buf,
+					    uint32_t len)
+{
+	int rc;
+	QDF_STATUS status;
+	struct wlan_objmgr_pdev *pdev;
+	struct wlan_objmgr_psoc *psoc;
+	struct ocb_get_tsf_timer_response response;
+	struct wlan_ocb_rx_ops *ocb_rx_ops;
+
+	target_if_debug("scn:%pK, data:%pK, datalen:%d",
+			scn, event_buf, len);
+
+	if (!scn || !event_buf) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, event_buf);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0,
+					  WLAN_OCB_SB_ID);
+	if (!pdev) {
+		target_if_err("pdev is NULL");
+		return -EINVAL;
+	}
+
+	ocb_rx_ops = target_if_ocb_get_rx_ops(pdev);
+	if (ocb_rx_ops->ocb_tsf_timer) {
+		status = wmi_extract_ocb_tsf_timer(GET_WMI_HDL_FROM_PSOC(psoc),
+						   event_buf, &response);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("Failed to extract tsf timer");
+			rc = -EINVAL;
+			goto exit;
+		}
+		status = ocb_rx_ops->ocb_tsf_timer(psoc, &response);
+		if (status != QDF_STATUS_SUCCESS) {
+			target_if_err("ocb_tsf_timer failed.");
+			rc = -EINVAL;
+			goto exit;
+		}
+		rc = 0;
+	} else {
+		target_if_fatal("No ocb_tsf_timer callback");
+		rc = -EINVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+
+	return rc;
+}
+
+/**
+ * target_if_dcc_update_ndl_resp() - handler for update NDL response
+ * @scn: scn handle
+ * @event_buf: pointer to the event buffer
+ * @len: length of the buffer
+ *
+ * Return: 0 on success
+ */
+static int target_if_dcc_update_ndl_resp(ol_scn_t scn,
+					 uint8_t *event_buf,
+					 uint32_t len)
+{
+	int rc;
+	QDF_STATUS status;
+	struct wlan_objmgr_pdev *pdev;
+	struct wlan_objmgr_psoc *psoc;
+	struct ocb_dcc_update_ndl_response *resp;
+	struct wlan_ocb_rx_ops *ocb_rx_ops;
+
+	target_if_debug("scn:%pK, data:%pK, datalen:%d",
+			scn, event_buf, len);
+
+	if (!scn || !event_buf) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, event_buf);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0,
+					  WLAN_OCB_SB_ID);
+	if (!pdev) {
+		target_if_err("pdev is NULL");
+		return -EINVAL;
+	}
+
+	/* Allocate and populate the response */
+	resp = qdf_mem_malloc(sizeof(*resp));
+	if (!resp) {
+		target_if_err("Error allocating memory for the response.");
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	ocb_rx_ops = target_if_ocb_get_rx_ops(pdev);
+	if (ocb_rx_ops->ocb_dcc_ndl_update) {
+		status = wmi_extract_dcc_update_ndl_resp(
+					GET_WMI_HDL_FROM_PSOC(psoc),
+					event_buf, resp);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("Failed to extract ndl status");
+			rc = -EINVAL;
+			goto exit;
+		}
+		status = ocb_rx_ops->ocb_dcc_ndl_update(psoc, resp);
+		if (status != QDF_STATUS_SUCCESS) {
+			target_if_err("dcc_ndl_update failed.");
+			rc = -EINVAL;
+			goto exit;
+		}
+		rc = 0;
+	} else {
+		target_if_fatal("No dcc_ndl_update callback");
+		rc = -EINVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+	if (resp)
+		qdf_mem_free(resp);
+
+	return rc;
+}
+
+/**
+ * target_if_dcc_get_stats_resp() - handler for get stats response
+ * @scn: scn handle
+ * @event_buf: pointer to the event buffer
+ * @len: length of the buffer
+ *
+ * Return: 0 on success
+ */
+static int target_if_dcc_get_stats_resp(ol_scn_t scn,
+					uint8_t *event_buf,
+					uint32_t len)
+{
+	int rc;
+	QDF_STATUS status;
+	struct wlan_objmgr_pdev *pdev;
+	struct wlan_objmgr_psoc *psoc;
+	struct ocb_dcc_get_stats_response *response;
+	struct wlan_ocb_rx_ops *ocb_rx_ops;
+
+	target_if_debug("scn:%pK, data:%pK, datalen:%d",
+			scn, event_buf, len);
+
+	if (!scn || !event_buf) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, event_buf);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0,
+					  WLAN_OCB_SB_ID);
+	if (!pdev) {
+		target_if_err("pdev is NULL");
+		return -EINVAL;
+	}
+
+	ocb_rx_ops = target_if_ocb_get_rx_ops(pdev);
+	if (ocb_rx_ops->ocb_dcc_stats_indicate) {
+		status = wmi_extract_dcc_stats(GET_WMI_HDL_FROM_PSOC(psoc),
+					       event_buf, &response);
+		if (!response || QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("Cannot get DCC stats");
+			rc = -ENOMEM;
+			goto exit;
+		}
+
+		status = ocb_rx_ops->ocb_dcc_stats_indicate(psoc,
+							    response,
+							    true);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("dcc_stats_indicate failed.");
+			rc = -EINVAL;
+			goto exit;
+		}
+		rc = 0;
+	} else {
+		target_if_fatal("No dcc_stats_indicate callback");
+		rc = -EINVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+	if (response)
+		qdf_mem_free(response);
+
+	return rc;
+}
+
+/**
+ * target_if_dcc_stats_resp() - handler for DCC stats indication event
+ * @scn: scn handle
+ * @event_buf: pointer to the event buffer
+ * @len: length of the buffer
+ *
+ * Return: 0 on success
+ */
+static int target_if_dcc_stats_resp(ol_scn_t scn, uint8_t *event_buf,
+				    uint32_t len)
+{
+	int rc;
+	QDF_STATUS status;
+	struct wlan_objmgr_pdev *pdev;
+	struct wlan_objmgr_psoc *psoc;
+	struct ocb_dcc_get_stats_response *response;
+	struct wlan_ocb_rx_ops *ocb_rx_ops;
+
+	target_if_debug("scn:%pK, data:%pK, datalen:%d",
+			scn, event_buf, len);
+
+	if (!scn || !event_buf) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, event_buf);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0,
+					  WLAN_OCB_SB_ID);
+	if (!pdev) {
+		target_if_err("pdev is NULL");
+		return -EINVAL;
+	}
+
+	ocb_rx_ops = target_if_ocb_get_rx_ops(pdev);
+	if (ocb_rx_ops->ocb_dcc_stats_indicate) {
+		status = wmi_extract_dcc_stats(GET_WMI_HDL_FROM_PSOC(psoc),
+					       event_buf, &response);
+		if (!response || QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("Cannot get DCC stats");
+			rc = -ENOMEM;
+			goto exit;
+		}
+		status = ocb_rx_ops->ocb_dcc_stats_indicate(psoc,
+							    response,
+							    false);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			target_if_err("dcc_stats_indicate failed.");
+			rc = -EINVAL;
+			goto exit;
+		}
+		rc = 0;
+	} else {
+		target_if_fatal("dcc_stats_indicate failed.");
+		response = NULL;
+		rc = -EINVAL;
+	}
+exit:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_OCB_SB_ID);
+	if (response)
+		qdf_mem_free(response);
+
+	return rc;
+}
+
+QDF_STATUS target_if_ocb_register_event_handler(struct wlan_objmgr_psoc *psoc,
+						void *arg)
+{
+	int rc;
+
+	/* Initialize the members in WMA used by wma_ocb */
+	rc = wmi_unified_register_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_set_config_resp_event_id,
+			target_if_ocb_set_config_resp);
+	if (rc) {
+		target_if_err("Failed to register OCB config resp event cb");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	rc = wmi_unified_register_event(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_get_tsf_timer_resp_event_id,
+			target_if_ocb_get_tsf_timer_resp);
+	if (rc) {
+		target_if_err("Failed to register OCB TSF resp event cb");
+		goto unreg_set_config;
+	}
+
+	rc = wmi_unified_register_event(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_get_stats_resp_event_id,
+			target_if_dcc_get_stats_resp);
+	if (rc) {
+		target_if_err("Failed to register DCC get stats resp event cb");
+		goto unreg_tsf_timer;
+	}
+
+	rc = wmi_unified_register_event(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_update_ndl_resp_event_id,
+			target_if_dcc_update_ndl_resp);
+	if (rc) {
+		target_if_err("Failed to register NDL update event cb");
+		goto unreg_get_stats;
+	}
+
+	rc = wmi_unified_register_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_stats_event_id,
+			target_if_dcc_stats_resp);
+	if (rc) {
+		target_if_err("Failed to register DCC stats event cb");
+		goto unreg_ndl;
+	}
+
+	return QDF_STATUS_SUCCESS;
+
+unreg_ndl:
+	wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_update_ndl_resp_event_id);
+unreg_get_stats:
+	wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_get_stats_resp_event_id);
+unreg_tsf_timer:
+	wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_get_tsf_timer_resp_event_id);
+unreg_set_config:
+	wmi_unified_unregister_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_set_config_resp_event_id);
+
+	return QDF_STATUS_E_FAILURE;
+}
+
+QDF_STATUS
+target_if_ocb_unregister_event_handler(struct wlan_objmgr_psoc *psoc,
+				       void *arg)
+{
+	int rc;
+
+	rc = wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_stats_event_id);
+	if (rc)
+		target_if_err("Failed to unregister DCC stats event cb");
+
+	rc = wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_update_ndl_resp_event_id);
+	if (rc)
+		target_if_err("Failed to unregister NDL update event cb");
+
+	rc = wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_dcc_get_stats_resp_event_id);
+	if (rc)
+		target_if_err("Failed to unregister DCC get stats resp cb");
+
+	rc = wmi_unified_unregister_event_handler(
+			GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_get_tsf_timer_resp_event_id);
+	if (rc)
+		target_if_err("Failed to unregister OCB TSF resp event cb");
+
+	rc = wmi_unified_unregister_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			wmi_ocb_set_config_resp_event_id);
+	if (rc)
+		target_if_err("Failed to unregister OCB config resp event cb");
+
+	return QDF_STATUS_SUCCESS;
+}
+
+QDF_STATUS
+target_if_ocb_register_tx_ops(struct wlan_ocb_tx_ops *ocb_txops)
+{
+	ocb_txops->ocb_set_config = target_if_ocb_set_config;
+	ocb_txops->ocb_set_utc_time = target_if_ocb_set_utc_time;
+	ocb_txops->ocb_start_timing_advert = target_if_ocb_start_timing_advert;
+	ocb_txops->ocb_stop_timing_advert = target_if_ocb_stop_timing_advert;
+	ocb_txops->ocb_get_tsf_timer = target_if_ocb_get_tsf_timer;
+	ocb_txops->ocb_dcc_get_stats = target_if_dcc_get_stats;
+	ocb_txops->ocb_dcc_clear_stats = target_if_dcc_clear_stats;
+	ocb_txops->ocb_dcc_update_ndl = target_if_dcc_update_ndl;
+	ocb_txops->ocb_reg_ev_handler = target_if_ocb_register_event_handler;
+	ocb_txops->ocb_unreg_ev_handler =
+			target_if_ocb_unregister_event_handler;
+
+	return QDF_STATUS_SUCCESS;
+}