linux-imx

/*

 * HWSIM IEEE 802.15.4 interface

 *

 * (C) 2018 Mojatau, Alexander Aring <aring@mojatau.com>

 * Copyright 2007-2012 Siemens AG

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License 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.

 *

 * Based on fakelb, original Written by:

 * Sergey Lapin <slapin@ossfans.org>

 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>

 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>

 */

​

#include <linux/module.h>

#include <linux/timer.h>

#include <linux/platform_device.h>

#include <linux/rtnetlink.h>

#include <linux/netdevice.h>

#include <linux/device.h>

#include <linux/spinlock.h>

#include <net/mac802154.h>

#include <net/cfg802154.h>

#include <net/genetlink.h>

#include "mac802154_hwsim.h"

​

MODULE_DESCRIPTION("Software simulator of IEEE 802.15.4 radio(s) for mac802154");

MODULE_LICENSE("GPL");

​

static LIST_HEAD(hwsim_phys);

static DEFINE_MUTEX(hwsim_phys_lock);

​

static struct platform_device *mac802154hwsim_dev;

​

/* MAC802154_HWSIM netlink family */

static struct genl_family hwsim_genl_family;

​

static int hwsim_radio_idx;

​

enum hwsim_multicast_groups {

    HWSIM_MCGRP_CONFIG,

};

​

static const struct genl_multicast_group hwsim_mcgrps[] = {

    [HWSIM_MCGRP_CONFIG] = { .name = "config", },

};

​

struct hwsim_pib {

    u8 page;

    u8 channel;

​

    struct rcu_head rcu;

};

​

struct hwsim_edge_info {

    u8 lqi;

​

    struct rcu_head rcu;

};

​

struct hwsim_edge {

    struct hwsim_phy *endpoint;

    struct hwsim_edge_info __rcu *info;

​

    struct list_head list;

    struct rcu_head rcu;

};

​

struct hwsim_phy {

    struct ieee802154_hw *hw;

    u32 idx;

​

    struct hwsim_pib __rcu *pib;

​

    bool suspended;

    struct list_head edges;

​

    struct list_head list;

};

​

static int hwsim_add_one(struct genl_info *info, struct device *dev,

             bool init);

static void hwsim_del(struct hwsim_phy *phy);

​

static int hwsim_hw_ed(struct ieee802154_hw *hw, u8 *level)