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/* Copyright (c) 2016-2017, 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>
#include <soc/qcom/icnss.h>
#define ICNSS_MAX_CH_NUM 45
static DEFINE_MUTEX(unsafe_channel_list_lock);
static DEFINE_SPINLOCK(dfs_nol_info_lock);
static int driver_load_cnt;
static enum cnss_cc_src icnss_cc_source = CNSS_SOURCE_CORE;
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;
void *old_nol_info;
struct icnss_dfs_nol_info *dfs_info;
if (!info || !info_len)
return -EINVAL;
temp = kmalloc(info_len, GFP_ATOMIC);
if (!temp)
return -ENOMEM;
memcpy(temp, info, info_len);
spin_lock_bh(&dfs_nol_info_lock);
dfs_info = &dfs_nol_info;
old_nol_info = dfs_info->dfs_nol_info;
dfs_info->dfs_nol_info = temp;
dfs_info->dfs_nol_info_len = info_len;
spin_unlock_bh(&dfs_nol_info_lock);
kfree(old_nol_info);
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;
if (!info || !info_len)
return -EINVAL;
spin_lock_bh(&dfs_nol_info_lock);
dfs_info = &dfs_nol_info;
if (dfs_info->dfs_nol_info == NULL ||
dfs_info->dfs_nol_info_len == 0) {
spin_unlock_bh(&dfs_nol_info_lock);
return -ENOENT;
}
len = min(info_len, dfs_info->dfs_nol_info_len);
memcpy(info, dfs_info->dfs_nol_info, len);
spin_unlock_bh(&dfs_nol_info_lock);
return len;
}
EXPORT_SYMBOL(icnss_wlan_get_dfs_nol);
void icnss_increment_driver_load_cnt(void)
{
++driver_load_cnt;
}
EXPORT_SYMBOL(icnss_increment_driver_load_cnt);
int icnss_get_driver_load_cnt(void)
{
return driver_load_cnt;
}
EXPORT_SYMBOL(icnss_get_driver_load_cnt);
void icnss_set_cc_source(enum cnss_cc_src cc_source)
{
icnss_cc_source = cc_source;
}
EXPORT_SYMBOL(icnss_set_cc_source);
enum cnss_cc_src icnss_get_cc_source(void)
{
return icnss_cc_source;
}
EXPORT_SYMBOL(icnss_get_cc_source);
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