qcacmn: DFS component target interface support

Add support to handle WMI commands and events related
to DFS component.

Change-Id: Ie21cd8cfbe35dfea31ca608d47a5dfe937d753f4
CRs-Fixed: 2017481

target_if/dfs/inc/target_if_dfs.h

@@ -0,0 +1,33 @@
+/*
+ * 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: target_if_dfs.h
+ * This file contains dfs target interface
+ */
+
+/**
+ * target_if_register_dfs_tx_ops() - register dfs tx ops
+ * @dfs_tx_ops: tx ops pointer
+ *
+ * Register dfs tx ops
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS target_if_register_dfs_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops);

target_if/dfs/src/target_if_dfs.c

@@ -0,0 +1,215 @@
+/*
+ * 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: target_if_dfs.c
+ * This file contains dfs target interface
+ */
+
+#include <target_if.h>
+#include <qdf_types.h>
+#include <qdf_status.h>
+#include <target_if_dfs.h>
+#include <wmi_unified_api.h>
+#include <wlan_lmac_if_def.h>
+#include <wmi_unified_priv.h>
+#include <wlan_scan_tgt_api.h>
+#include <wmi_unified_param.h>
+#include <wmi_unified_dfs_api.h>
+
+static inline struct wlan_lmac_if_dfs_rx_ops *
+target_if_dfs_get_rx_ops(struct wlan_objmgr_psoc *psoc)
+{
+	return &psoc->soc_cb.rx_ops.dfs_rx_ops;
+}
+
+static int target_if_dfs_cac_complete_event_handler(
+		ol_scn_t scn, uint8_t *data, uint32_t datalen)
+{
+	struct wlan_lmac_if_dfs_rx_ops *dfs_rx_ops;
+	struct wlan_objmgr_psoc *psoc;
+	struct wlan_objmgr_vdev *vdev;
+	struct wlan_objmgr_pdev *pdev;
+	int ret = 0;
+	uint32_t vdev_id = 0;
+
+	if (!scn || !data) {
+		target_if_err("scn: %p, data: %p", scn, data);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	dfs_rx_ops = target_if_dfs_get_rx_ops(psoc);
+	if (!dfs_rx_ops || !dfs_rx_ops->dfs_dfs_cac_complete_ind) {
+		target_if_err("Invalid dfs_rx_ops: %p", dfs_rx_ops);
+		return -EINVAL;
+	}
+
+	if (wmi_extract_dfs_cac_complete_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			data, &vdev_id, datalen) != QDF_STATUS_SUCCESS) {
+		target_if_err("failed to extract cac complete event");
+		return -EFAULT;
+	}
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc, vdev_id, WLAN_DFS_ID);
+	if (!vdev) {
+		target_if_err("null vdev");
+		return -EINVAL;
+	}
+
+	wlan_vdev_obj_lock(vdev);
+	pdev = wlan_vdev_get_pdev(vdev);
+	wlan_vdev_obj_unlock(vdev);
+	if (!pdev) {
+		target_if_err("null pdev");
+		ret = -EINVAL;
+	}
+
+	if (!ret && (QDF_STATUS_SUCCESS !=
+	    dfs_rx_ops->dfs_dfs_cac_complete_ind(pdev, vdev_id))) {
+		target_if_err("dfs_dfs_cac_complete_ind failed");
+		ret = -EINVAL;
+	}
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_DFS_ID);
+
+	return ret;
+}
+
+static int target_if_dfs_radar_detection_event_handler(
+		ol_scn_t scn, uint8_t *data, uint32_t datalen)
+{
+	struct radar_found_info radar;
+	struct wlan_objmgr_psoc *psoc = NULL;
+	struct wlan_objmgr_pdev *pdev = NULL;
+	struct wlan_lmac_if_dfs_rx_ops *dfs_rx_ops;
+	int ret = 0;
+
+	if (!scn || !data) {
+		target_if_err("scn: %p, data: %p", scn, data);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	dfs_rx_ops = target_if_dfs_get_rx_ops(psoc);
+	if (!dfs_rx_ops || !dfs_rx_ops->dfs_process_radar_ind) {
+		target_if_err("Invalid dfs_rx_ops: %p", dfs_rx_ops);
+		return -EINVAL;
+	}
+
+	if (wmi_extract_dfs_radar_detection_event(GET_WMI_HDL_FROM_PSOC(psoc),
+			data, &radar, datalen) != QDF_STATUS_SUCCESS) {
+		target_if_err("failed to extract cac complete event");
+		return -EFAULT;
+	}
+
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, radar.pdev_id, WLAN_DFS_ID);
+	if (!pdev) {
+		target_if_err("null pdev");
+		return -EINVAL;
+	}
+
+	if (QDF_STATUS_SUCCESS != dfs_rx_ops->dfs_process_radar_ind(pdev,
+				&radar)) {
+		target_if_err("dfs_process_radar_ind failed pdev_id=%d",
+			      radar.pdev_id);
+		ret = -EINVAL;
+	}
+
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_DFS_ID);
+
+	return ret;
+}
+
+static QDF_STATUS target_if_dfs_reg_offload_events(
+		struct wlan_objmgr_psoc *psoc)
+{
+	int ret1, ret2;
+
+	ret1 = wmi_unified_register_event(psoc->tgt_if_handle,
+			wmi_dfs_radar_detection_event_id,
+			target_if_dfs_radar_detection_event_handler);
+	target_if_debug("wmi_dfs_radar_detection_event_id ret=%d", ret1);
+
+	ret2 = wmi_unified_register_event(psoc->tgt_if_handle,
+			wmi_dfs_cac_complete_id,
+			target_if_dfs_cac_complete_event_handler);
+	target_if_debug("wmi_dfs_cac_complete_id ret=%d", ret2);
+
+	if (ret1 || ret2)
+		return QDF_STATUS_E_FAILURE;
+	else
+		return QDF_STATUS_SUCCESS;
+}
+
+static QDF_STATUS target_if_dfs_reg_phyerr_events(struct wlan_objmgr_psoc *psoc)
+{
+	/* TODO: dfs non-offload case */
+	return QDF_STATUS_SUCCESS;
+}
+
+static QDF_STATUS target_if_dfs_register_event_handler(
+		struct wlan_objmgr_pdev *pdev,
+		bool dfs_offload)
+{
+	QDF_STATUS status = QDF_STATUS_SUCCESS;
+	struct wlan_objmgr_psoc *psoc = NULL;
+
+	wlan_pdev_obj_lock(pdev);
+	psoc = wlan_pdev_get_psoc(pdev);
+	wlan_pdev_obj_unlock(pdev);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	if (!dfs_offload)
+		return target_if_dfs_reg_phyerr_events(psoc);
+
+	/* dfs offload case, send offload enable command first */
+	status = wmi_unified_dfs_phyerr_offload_en_cmd(pdev->tgt_if_handle, 0);
+	if (QDF_IS_STATUS_SUCCESS(status))
+		status = target_if_dfs_reg_offload_events(psoc);
+
+	return status;
+}
+
+QDF_STATUS target_if_register_dfs_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops)
+{
+	struct wlan_lmac_if_dfs_tx_ops *dfs_tx_ops;
+
+	if (!tx_ops) {
+		target_if_err("invalid tx_ops");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	dfs_tx_ops = &tx_ops->dfs_tx_ops;
+	dfs_tx_ops->dfs_reg_ev_handler = &target_if_dfs_register_event_handler;
+
+	return QDF_STATUS_SUCCESS;
+}