--- /dev/null
+/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#define ICNSS_MAX_CH_NUM 45
+
+static DEFINE_MUTEX(unsafe_channel_list_lock);
+static DEFINE_MUTEX(dfs_nol_info_lock);
+
+static struct icnss_unsafe_channel_list {
+ u16 unsafe_ch_count;
+ u16 unsafe_ch_list[ICNSS_MAX_CH_NUM];
+} unsafe_channel_list;
+
+static struct icnss_dfs_nol_info {
+ void *dfs_nol_info;
+ u16 dfs_nol_info_len;
+} dfs_nol_info;
+
+int icnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count)
+{
+ mutex_lock(&unsafe_channel_list_lock);
+ if ((!unsafe_ch_list) || (ch_count > ICNSS_MAX_CH_NUM)) {
+ mutex_unlock(&unsafe_channel_list_lock);
+ return -EINVAL;
+ }
+
+ unsafe_channel_list.unsafe_ch_count = ch_count;
+
+ if (ch_count != 0) {
+ memcpy(
+ (char *)unsafe_channel_list.unsafe_ch_list,
+ (char *)unsafe_ch_list, ch_count * sizeof(u16));
+ }
+ mutex_unlock(&unsafe_channel_list_lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(icnss_set_wlan_unsafe_channel);
+
+int icnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list,
+ u16 *ch_count, u16 buf_len)
+{
+ mutex_lock(&unsafe_channel_list_lock);
+ if (!unsafe_ch_list || !ch_count) {
+ mutex_unlock(&unsafe_channel_list_lock);
+ return -EINVAL;
+ }
+
+ if (buf_len < (unsafe_channel_list.unsafe_ch_count * sizeof(u16))) {
+ mutex_unlock(&unsafe_channel_list_lock);
+ return -ENOMEM;
+ }
+
+ *ch_count = unsafe_channel_list.unsafe_ch_count;
+ memcpy(
+ (char *)unsafe_ch_list,
+ (char *)unsafe_channel_list.unsafe_ch_list,
+ unsafe_channel_list.unsafe_ch_count * sizeof(u16));
+ mutex_unlock(&unsafe_channel_list_lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(icnss_get_wlan_unsafe_channel);
+
+int icnss_wlan_set_dfs_nol(const void *info, u16 info_len)
+{
+ void *temp;
+ struct icnss_dfs_nol_info *dfs_info;
+
+ mutex_lock(&dfs_nol_info_lock);
+ if (!info || !info_len) {
+ mutex_unlock(&dfs_nol_info_lock);
+ return -EINVAL;
+ }
+
+ temp = kmalloc(info_len, GFP_KERNEL);
+ if (!temp) {
+ mutex_unlock(&dfs_nol_info_lock);
+ return -ENOMEM;
+ }
+
+ memcpy(temp, info, info_len);
+ dfs_info = &dfs_nol_info;
+ kfree(dfs_info->dfs_nol_info);
+
+ dfs_info->dfs_nol_info = temp;
+ dfs_info->dfs_nol_info_len = info_len;
+ mutex_unlock(&dfs_nol_info_lock);
+
+ return 0;
+}
+EXPORT_SYMBOL(icnss_wlan_set_dfs_nol);
+
+int icnss_wlan_get_dfs_nol(void *info, u16 info_len)
+{
+ int len;
+ struct icnss_dfs_nol_info *dfs_info;
+
+ mutex_lock(&dfs_nol_info_lock);
+ if (!info || !info_len) {
+ mutex_unlock(&dfs_nol_info_lock);
+ return -EINVAL;
+ }
+
+ dfs_info = &dfs_nol_info;
+
+ if (dfs_info->dfs_nol_info == NULL ||
+ dfs_info->dfs_nol_info_len == 0) {
+ mutex_unlock(&dfs_nol_info_lock);
+ return -ENOENT;
+ }
+
+ len = min(info_len, dfs_info->dfs_nol_info_len);
+
+ memcpy(info, dfs_info->dfs_nol_info, len);
+ mutex_unlock(&dfs_nol_info_lock);
+
+ return len;
+}
+EXPORT_SYMBOL(icnss_wlan_get_dfs_nol);