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

Kbuild

@@ -310,6 +310,9 @@ endif
 ifeq ($(CONFIG_WLAN_SET_MON_CHAN), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_set_mon_chan.o
 endif
+ifeq ($(CONFIG_WLAN_SET_RANGE_EXT), y)
+HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_set_range_ext.o
+endif
 ifeq ($(CONFIG_WLAN_SET_RADAR), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_set_radar.o
 endif
@@ -2624,6 +2627,7 @@ endif
 #normally, TDLS negative behavior is not needed
 cppflags-$(CONFIG_QCOM_TDLS) += -DFEATURE_WLAN_TDLS
 cppflags-$(CONFIG_WLAN_GET_TDLS_PEERS) += -DWLAN_GET_TDLS_PEERS
+cppflags-$(CONFIG_WLAN_SET_RANGE_EXT) += -DWLAN_SET_RANGE_EXT
 
 cppflags-$(CONFIG_QCACLD_WLAN_LFR3) += -DWLAN_FEATURE_ROAM_OFFLOAD
 

configs/default_defconfig

@@ -392,6 +392,12 @@ ifeq ($(CONFIG_SLUB_DEBUG), y)
 	CONFIG_LOCK_STATS_ON:= y
 endif
 
+ifeq ($(CONFIG_WLAN_SYSFS), y)
+ifeq ($(CONFIG_MPC_UT_FRAMEWORK), y)
+	CONFIG_WLAN_SET_RANGE_EXT := y
+endif
+endif
+
 ifeq (y,$(findstring y,$(CONFIG_QCA_WIFI_SDIO) $(CONFIG_HIF_USB)))
 CONFIG_HL_DP_SUPPORT := y
 else

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 */

core/hdd/src/wlan_hdd_sysfs.c

@@ -58,6 +58,7 @@
 #include <wlan_hdd_sysfs_gtx_bw_mask.h>
 #include <wlan_hdd_sysfs_set_scan_cfg.h>
 #include <wlan_hdd_sysfs_set_mon_chan.h>
+#include <wlan_hdd_sysfs_set_range_ext.h>
 #include <wlan_hdd_sysfs_set_radar.h>
 #include <wlan_hdd_sysfs_rts_cts.h>
 #include <wlan_hdd_sysfs_txrx_fw_stats.h>
@@ -659,11 +660,13 @@ hdd_sysfs_create_sta_adapter_root_obj(struct hdd_adapter *adapter)
 	hdd_sysfs_get_tdls_peers_interface_create(adapter);
 	hdd_sysfs_get_temp_create(adapter);
 	hdd_sysfs_motion_detection_create(adapter);
+	hdd_sysfs_range_ext_create(adapter);
 }
 
 static void
 hdd_sysfs_destroy_sta_adapter_root_obj(struct hdd_adapter *adapter)
 {
+	hdd_sysfs_range_ext_destroy(adapter);
 	hdd_sysfs_motion_detection_destroy(adapter);
 	hdd_sysfs_get_temp_destroy(adapter);
 	hdd_sysfs_get_tdls_peers_interface_destroy(adapter);
@@ -708,11 +711,13 @@ hdd_sysfs_create_sap_adapter_root_obj(struct hdd_adapter *adapter)
 	hdd_sysfs_txrx_fw_stats_create(adapter);
 	hdd_sysfs_txrx_stats_create(adapter);
 	hdd_sysfs_get_temp_create(adapter);
+	hdd_sysfs_range_ext_create(adapter);
 }
 
 static void
 hdd_sysfs_destroy_sap_adapter_root_obj(struct hdd_adapter *adapter)
 {
+	hdd_sysfs_range_ext_destroy(adapter);
 	hdd_sysfs_get_temp_destroy(adapter);
 	hdd_sysfs_txrx_stats_destroy(adapter);
 	hdd_sysfs_txrx_fw_stats_destroy(adapter);

core/hdd/src/wlan_hdd_sysfs_set_range_ext.c

@@ -0,0 +1,115 @@
+/*
+ * 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_range_ext.c
+ *
+ * implementation for creating sysfs file range_ext
+ */
+
+#include <wlan_hdd_includes.h>
+#include "osif_vdev_sync.h"
+#include <wlan_hdd_sysfs.h>
+#include "wma_api.h"
+#include "wlan_hdd_sysfs_set_range_ext.h"
+
+static ssize_t __hdd_sysfs_range_ext_store(struct net_device *net_dev,
+					   char const *buf, size_t count)
+{
+	struct hdd_adapter *adapter = netdev_priv(net_dev);
+	char buf_local[MAX_SYSFS_USER_COMMAND_SIZE_LENGTH + 1];
+	struct hdd_context *hdd_ctx;
+	char *sptr, *token;
+	uint32_t value;
+	int ret, errno;
+
+	if (hdd_validate_adapter(adapter)) {
+		hdd_err_rl("adapter validate fail");
+		return -EINVAL;
+	}
+
+	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	ret = wlan_hdd_validate_context(hdd_ctx);
+	if (ret != 0)
+		return ret;
+
+	if (!wlan_hdd_validate_modules_state(hdd_ctx))
+		return -EINVAL;
+
+	ret = hdd_sysfs_validate_and_copy_buf(buf_local, sizeof(buf_local),
+					      buf, count);
+
+	if (ret) {
+		hdd_err_rl("invalid input");
+		return ret;
+	}
+
+	sptr = buf_local;
+	hdd_debug("range_ext: count %zu buf_local:(%s) net_devname %s",
+		  count, buf_local, net_dev->name);
+
+	/* Get value */
+	token = strsep(&sptr, " ");
+	if (!token)
+		return -EINVAL;
+	if (kstrtou32(token, 0, &value))
+		return -EINVAL;
+
+	hdd_debug("WMI_VDEV_PARAM_HE_RANGE_EXT %d", value);
+	errno = wma_cli_set_command(adapter->vdev_id,
+				    WMI_VDEV_PARAM_HE_RANGE_EXT,
+				    value, VDEV_CMD);
+	if (errno)
+		hdd_err("Failed to set he_range_ext firmware param, errno %d",
+			errno);
+
+	return count;
+}
+
+static ssize_t
+hdd_sysfs_range_ext_store(struct device *dev, struct device_attribute *attr,
+			  char const *buf, size_t count)
+{
+	struct net_device *net_dev = container_of(dev, struct net_device, dev);
+	struct osif_vdev_sync *vdev_sync;
+	ssize_t errno_size;
+
+	errno_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
+	if (errno_size)
+		return errno_size;
+
+	errno_size = __hdd_sysfs_range_ext_store(net_dev, buf, count);
+
+	osif_vdev_sync_op_stop(vdev_sync);
+
+	return errno_size;
+}
+
+static DEVICE_ATTR(range_ext, 0220, NULL, hdd_sysfs_range_ext_store);
+
+void hdd_sysfs_range_ext_create(struct hdd_adapter *adapter)
+{
+	int error;
+
+	error = device_create_file(&adapter->dev->dev, &dev_attr_range_ext);
+	if (error)
+		hdd_err("could not create range_ext sysfs file");
+}
+
+void hdd_sysfs_range_ext_destroy(struct hdd_adapter *adapter)
+{
+	device_remove_file(&adapter->dev->dev, &dev_attr_range_ext);
+}