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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/net/mac802154/mac_cmd.c
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// SPDX-License-Identifier: GPL-2.0-only

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/*

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 * MAC commands interface

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 *

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 * Copyright 2007-2012 Siemens AG

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 *

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 * Written by:

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 * Sergey Lapin <[email protected]>

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 * Dmitry Eremin-Solenikov <[email protected]>

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 * Alexander Smirnov <[email protected]>

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 */

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#include <linux/skbuff.h>

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#include <linux/if_arp.h>

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#include <linux/ieee802154.h>

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#include <net/ieee802154_netdev.h>

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#include <net/cfg802154.h>

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#include <net/mac802154.h>

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#include "ieee802154_i.h"

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#include "driver-ops.h"

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static int mac802154_mlme_start_req(struct net_device *dev,

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				    struct ieee802154_addr *addr,

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				    u8 channel, u8 page,

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				    u8 bcn_ord, u8 sf_ord,

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				    u8 pan_coord, u8 blx,

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				    u8 coord_realign)

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{

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	struct ieee802154_llsec_params params;

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	int changed = 0;

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	ASSERT_RTNL();

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	BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);

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	dev->ieee802154_ptr->pan_id = addr->pan_id;

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	dev->ieee802154_ptr->short_addr = addr->short_addr;

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	mac802154_dev_set_page_channel(dev, page, channel);

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	params.pan_id = addr->pan_id;

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	changed |= IEEE802154_LLSEC_PARAM_PAN_ID;

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	params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);

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	changed |= IEEE802154_LLSEC_PARAM_HWADDR;

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	params.coord_hwaddr = params.hwaddr;

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	changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;

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	params.coord_shortaddr = addr->short_addr;

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	changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;

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	return mac802154_set_params(dev, &params, changed);

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}

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static int mac802154_set_mac_params(struct net_device *dev,

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				    const struct ieee802154_mac_params *params)

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{

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	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);

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	struct ieee802154_local *local = sdata->local;

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	struct wpan_dev *wpan_dev = &sdata->wpan_dev;

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	int ret;

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	ASSERT_RTNL();

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	/* PHY */

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	wpan_dev->wpan_phy->transmit_power = params->transmit_power;

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	wpan_dev->wpan_phy->cca = params->cca;

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	wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;

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	/* MAC */

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	wpan_dev->min_be = params->min_be;

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	wpan_dev->max_be = params->max_be;

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	wpan_dev->csma_retries = params->csma_retries;

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	wpan_dev->frame_retries = params->frame_retries;

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	wpan_dev->lbt = params->lbt;

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	if (local->hw.phy->flags & WPAN_PHY_FLAG_TXPOWER) {

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		ret = drv_set_tx_power(local, params->transmit_power);

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		if (ret < 0)

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			return ret;

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	}

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	if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_MODE) {

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		ret = drv_set_cca_mode(local, &params->cca);

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		if (ret < 0)

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			return ret;

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	}

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	if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {

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		ret = drv_set_cca_ed_level(local, params->cca_ed_level);

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		if (ret < 0)

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			return ret;

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	}

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	return 0;

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}

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static void mac802154_get_mac_params(struct net_device *dev,

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				     struct ieee802154_mac_params *params)

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{

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	struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);

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	struct wpan_dev *wpan_dev = &sdata->wpan_dev;

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	ASSERT_RTNL();

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	/* PHY */

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	params->transmit_power = wpan_dev->wpan_phy->transmit_power;

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	params->cca = wpan_dev->wpan_phy->cca;

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	params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;

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	/* MAC */

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	params->min_be = wpan_dev->min_be;

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	params->max_be = wpan_dev->max_be;

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	params->csma_retries = wpan_dev->csma_retries;

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	params->frame_retries = wpan_dev->frame_retries;

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	params->lbt = wpan_dev->lbt;

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}

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static const struct ieee802154_llsec_ops mac802154_llsec_ops = {

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	.get_params = mac802154_get_params,

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	.set_params = mac802154_set_params,

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	.add_key = mac802154_add_key,

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	.del_key = mac802154_del_key,

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	.add_dev = mac802154_add_dev,

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	.del_dev = mac802154_del_dev,

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	.add_devkey = mac802154_add_devkey,

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	.del_devkey = mac802154_del_devkey,

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	.add_seclevel = mac802154_add_seclevel,

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	.del_seclevel = mac802154_del_seclevel,

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	.lock_table = mac802154_lock_table,

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	.get_table = mac802154_get_table,

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	.unlock_table = mac802154_unlock_table,

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};

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struct ieee802154_mlme_ops mac802154_mlme_wpan = {

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	.start_req = mac802154_mlme_start_req,

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	.llsec = &mac802154_llsec_ops,

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	.set_mac_params = mac802154_set_mac_params,

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	.get_mac_params = mac802154_get_mac_params,

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};

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