qcacld-3.0: Add interface to get / set eLNA bypass

Add interface to get / set eLNA bypass from / to firmware

Change-Id: Idf5d6a838d2596767a1fb00040457af721fba69d
CRs-Fixed: 2498525

os_if/fw_offload/inc/os_if_fwol.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2019 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: os_if_fwol.h
+ *
+ * This Header file provide declaration for OS interface API
+ */
+
+#ifndef __OS_IF_FWOL_H__
+#define __OS_IF_FWOL_H__
+
+#include "wlan_objmgr_vdev_obj.h"
+
+#ifdef WLAN_FEATURE_ELNA
+/**
+ * os_if_fwol_set_elna_bypass() - Set eLNA bypass
+ * @vdev: Pointer to vdev
+ * @attr: Pointer to struct nlattr
+ *
+ * Return: 0 on success; error number otherwise
+ */
+int os_if_fwol_set_elna_bypass(struct wlan_objmgr_vdev *vdev,
+			       const struct nlattr *attr);
+
+/**
+ * os_if_fwol_get_elna_bypass() - Get eLNA bypass
+ * @vdev: Pointer to vdev
+ * @skb: sk buffer to hold nl80211 attributes
+ * @attr: Pointer to struct nlattr
+ *
+ * Return: 0 on success; error number otherwise
+ */
+int os_if_fwol_get_elna_bypass(struct wlan_objmgr_vdev *vdev,
+			       struct sk_buff *skb,
+			       const struct nlattr *attr);
+#else
+static inline int os_if_fwol_set_elna_bypass(struct wlan_objmgr_vdev *vdev,
+					     const struct nlattr *attr)
+{
+	return 0;
+}
+
+static inline int os_if_fwol_get_elna_bypass(struct wlan_objmgr_vdev *vdev,
+					     struct sk_buff *skb,
+					     const struct nlattr *attr)
+{
+	return 0;
+}
+#endif /* WLAN_FEATURE_ELNA */
+
+#endif /* __OS_IF_FWOL_H__ */

os_if/fw_offload/src/os_if_fwol.c

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2019 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: defines driver functions interfacing with linux kernel
+ */
+
+#include "wlan_cfg80211.h"
+#include "wlan_osif_request_manager.h"
+#include "wlan_fwol_public_structs.h"
+#include "wlan_fwol_ucfg_api.h"
+#include "os_if_fwol.h"
+
+#ifdef WLAN_FEATURE_ELNA
+#define WLAN_WAIT_TIME_GET_ELNA_BYPASS 1500
+
+int os_if_fwol_set_elna_bypass(struct wlan_objmgr_vdev *vdev,
+			       const struct nlattr *attr)
+{
+	struct set_elna_bypass_request req;
+	QDF_STATUS status;
+
+	req.vdev_id = vdev->vdev_objmgr.vdev_id;
+	req.en_dis = nla_get_u8(attr);
+	if (req.en_dis > 1) {
+		osif_err("Invalid elna_bypass value %d", req.en_dis);
+		return -EINVAL;
+	}
+
+	status = ucfg_fwol_set_elna_bypass(vdev, &req);
+	if (!QDF_IS_STATUS_SUCCESS(status))
+		osif_err("Failed to set ELNA BYPASS, %d", status);
+
+	return qdf_status_to_os_return(status);
+}
+
+struct osif_get_elna_bypass_priv {
+	uint8_t en_dis;
+};
+
+/**
+ * os_if_fwol_get_elna_bypass_callback() - Get eLNA bypass callback
+ * @context: Call context
+ * @response: Pointer to response structure
+ *
+ * Return: void
+ */
+static void
+os_if_fwol_get_elna_bypass_callback(void *context,
+				    struct get_elna_bypass_response *response)
+{
+	struct osif_request *request;
+	struct osif_get_elna_bypass_priv *priv;
+
+	request = osif_request_get(context);
+	if (!request) {
+		osif_err("Obsolete request");
+		return;
+	}
+
+	priv = osif_request_priv(request);
+	priv->en_dis = response->en_dis;
+
+	osif_request_complete(request);
+	osif_request_put(request);
+}
+
+int os_if_fwol_get_elna_bypass(struct wlan_objmgr_vdev *vdev,
+			       struct sk_buff *skb,
+			       const struct nlattr *attr)
+{
+	struct get_elna_bypass_request req;
+	void *cookie;
+	struct osif_request *request;
+	struct osif_get_elna_bypass_priv *priv;
+	static const struct osif_request_params params = {
+		.priv_size = sizeof(*priv),
+		.timeout_ms = WLAN_WAIT_TIME_GET_ELNA_BYPASS,
+	};
+	QDF_STATUS status;
+	int ret = 0;
+
+	req.vdev_id = vdev->vdev_objmgr.vdev_id;
+
+	request = osif_request_alloc(&params);
+	if (!request) {
+		osif_err("Request allocation failure");
+		return -ENOMEM;
+	}
+	cookie = osif_request_cookie(request);
+
+	status = ucfg_fwol_get_elna_bypass(vdev, &req,
+					   os_if_fwol_get_elna_bypass_callback,
+					   cookie);
+	if (!QDF_IS_STATUS_SUCCESS(status)) {
+		osif_err("Failed to get ELNA BYPASS, %d", status);
+		ret = qdf_status_to_os_return(status);
+		goto end;
+	}
+
+	ret = osif_request_wait_for_response(request);
+	if (ret) {
+		osif_err("Operation timed out");
+		goto end;
+	}
+
+	priv = osif_request_priv(request);
+	if (nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_CONFIG_ELNA_BYPASS,
+		       priv->en_dis)) {
+		osif_err("put fail");
+		ret = -EINVAL;
+	}
+
+end:
+	osif_request_put(request);
+	return ret;
+}
+#endif /* #ifdef WLAN_FEATURE_ELNA */