qcacld-3.0: Add a sysfs replacement for range_ext

As part of WEXT replacement, replace range_ext with a sysfs file.

This feature can be controlled using configuration flag
CONFIG_WLAN_SET_RANGE_EXT

file path: /sys/class/net/wlanxx/range_ext
	where wlanxx is adapter name

example command: echo 1 > /sys/class/net/wlan1/range_ext

Change-Id: I389da429e1a0cd3a2ed1efede6cb958628eb7e6e
CRs-Fixed: 2689879

core/hdd/inc/wlan_hdd_sysfs_set_range_ext.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2011-2020, 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 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: wlan_hdd_sysfs_set_range_ext.h
+ *
+ * implementation for creating sysfs file range_ext
+ */
+
+#ifndef _WLAN_HDD_SYSFS_SET_RANGE_EXT_H
+#define _WLAN_HDD_SYSFS_SET_RANGE_EXT_H
+
+#if defined(WLAN_SYSFS) && defined(WLAN_SET_RANGE_EXT)
+/**
+ * wlan_hdd_sysfs_range_ext_create() - API to create range_ext
+ * @adapter: hdd adapter
+ *
+ * this file is created per adapter.
+ * file path: /sys/class/net/wlanxx/range_ext
+ *                (wlanxx is adapter name)
+ * usage:
+ *      echo 1  > range_ext
+ *
+ * Return: none
+ */
+void hdd_sysfs_range_ext_create(struct hdd_adapter *adapter);
+
+/**
+ * hdd_sysfs_range_ext_destroy() - API to destroy range_ext
+ * @adapter: pointer to adapter
+ *
+ * Return: none
+ */
+void hdd_sysfs_range_ext_destroy(struct hdd_adapter *adapter);
+#else
+static inline void
+hdd_sysfs_range_ext_create(struct hdd_adapter *adapter)
+{
+}
+
+static inline void
+hdd_sysfs_range_ext_destroy(struct hdd_adapter *adapter)
+{
+}
+#endif
+#endif /* #ifndef _WLAN_HDD_SYSFS_SET_RANGE_EXT_H */