qcacmn: scan convergence - interface definition

Add north interface, south interface and offload interface
API definitions

Change-Id: Iccae20d266e7248088241416730d9ea317c3f77b
CRs-Fixed: 1095299

target_if/scan/inc/target_if_scan.h

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2017 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 scan
+ */
+#ifndef __TARGET_SCAN_IF_H__
+#define __TARGET_SCAN_IF_H__
+
+struct scan_req_params;
+struct scan_cancel_param;
+struct wlan_objmgr_psoc;
+
+/**
+ * target_if_scan_register_event_handler() - lmac handler API
+ * to register for scan events
+ * @psoc: psoc object
+ * @arg: argument to lmac
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+target_if_scan_register_event_handler(struct wlan_objmgr_psoc *psoc,
+		void *arg);
+
+/**
+ * target_if_scan_unregister_event_handler() - lmac handler API
+ * to unregister for scan events
+ * @psoc: psoc object
+ * @arg: argument to lmac
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+target_if_scan_unregister_event_handler(struct wlan_objmgr_psoc *psoc,
+		void *arg);
+
+/**
+ * target_if_scan_start() - lmac handler API to start scan
+ * @psoc: psoc object
+ * @req: scan_req_params object
+ *
+ * Return: QDF_STATUS
+ */
+
+QDF_STATUS
+target_if_scan_start(struct wlan_objmgr_psoc *psoc,
+		struct scan_start_request *req);
+
+/**
+ * target_if_scan_cancel() - lmac handler API to cancel a previous active scan
+ * @psoc: psoc object
+ * @req: scan_cancel_param object
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+target_if_scan_cancel(struct wlan_objmgr_psoc *psoc,
+		struct scan_cancel_param *req);
+#endif

target_if/scan/src/target_if_scan.c

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2017 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 definitions for scan
+ */
+
+#include <qdf_mem.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_scan_tgt_api.h>
+#include <target_if.h>
+
+static inline struct wlan_lmac_if_scan_rx_ops *
+target_if_scan_get_rx_ops(struct wlan_objmgr_psoc *psoc)
+{
+	return &psoc->soc_cb.rx_ops.scan;
+}
+
+static int
+target_if_scan_event_handler(ol_scn_t scn, uint8_t *data, uint32_t datalen)
+{
+	struct scan_event_info *event_info;
+	struct wlan_objmgr_psoc *psoc;
+	struct wmi_unified *wmi_handle;
+	struct wlan_lmac_if_scan_rx_ops *scan_rx_ops;
+	QDF_STATUS status;
+
+	if (!scn || !data) {
+		target_if_err("scn: 0x%p, data: 0x%p\n", scn, data);
+		return -EINVAL;
+	}
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc\n");
+		return -EINVAL;
+	}
+	wmi_handle = GET_WMI_HDL_FROM_PSOC(psoc);
+
+	event_info = qdf_mem_malloc(sizeof(*event_info));
+
+	if (!event_info) {
+		target_if_err("%s: unable to allocate scan_event\n", __func__);
+		return -ENOMEM;
+	}
+
+	if (wmi_extract_vdev_scan_ev_param(wmi_handle, data,
+			&(event_info->event))) {
+		target_if_err("%s: Failed to extract wmi scan event\n",
+			__func__);
+		qdf_mem_free(event_info);
+		return -EINVAL;
+	}
+
+	scan_rx_ops = target_if_scan_get_rx_ops(psoc);
+	if (scan_rx_ops->scan_ev_handler) {
+		status = scan_rx_ops->scan_ev_handler(psoc, event_info);
+		if (status != QDF_STATUS_SUCCESS) {
+			qdf_mem_free(event_info);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+QDF_STATUS
+target_if_scan_register_event_handler(struct wlan_objmgr_psoc *psoc, void *arg)
+{
+	return wmi_unified_register_event_handler(psoc->tgt_if_handle,
+		wmi_scan_event_id, target_if_scan_event_handler,
+		WMI_RX_UMAC_CTX);
+}
+
+QDF_STATUS
+target_if_scan_unregister_event_handler(struct wlan_objmgr_psoc *psoc,
+		void *arg)
+{
+	return wmi_unified_unregister_event_handler(psoc->tgt_if_handle,
+		wmi_scan_event_id);
+}
+
+QDF_STATUS
+target_if_scan_start(struct wlan_objmgr_psoc *psoc,
+		struct scan_start_request *req)
+{
+	return wmi_unified_scan_start_cmd_send(psoc->tgt_if_handle,
+		&req->scan_req);
+}
+
+
+QDF_STATUS
+target_if_scan_cancel(struct wlan_objmgr_psoc *psoc,
+		struct scan_cancel_param *req)
+{
+	return wmi_unified_scan_stop_cmd_send(psoc->tgt_if_handle, req);
+}