linux/net/mac802154/mac_cmd.c
Alexander Aring 7fe9a3882b ieee802154: rework cca setting
The current cca setting handle is a driver specific call. We need to
introduce some 802.15.4 specific layer and mapping 802.15.4 cca modes to
driver specific ones inside the 802.15.4 driver. This patch will add
such 802.15.4 layer and mapping the cca settings to driver specific ones.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2014-12-19 00:19:23 +01:00

163 lines
4.4 KiB
C

/*
* MAC commands interface
*
* 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.
*
* Written by:
* Sergey Lapin <slapin@ossfans.org>
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
*/
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ieee802154.h>
#include <net/ieee802154_netdev.h>
#include <net/cfg802154.h>
#include <net/mac802154.h>
#include "ieee802154_i.h"
#include "driver-ops.h"
static int mac802154_mlme_start_req(struct net_device *dev,
struct ieee802154_addr *addr,
u8 channel, u8 page,
u8 bcn_ord, u8 sf_ord,
u8 pan_coord, u8 blx,
u8 coord_realign)
{
struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
int rc = 0;
ASSERT_RTNL();
BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
mac802154_dev_set_pan_id(dev, addr->pan_id);
mac802154_dev_set_short_addr(dev, addr->short_addr);
mac802154_dev_set_page_channel(dev, page, channel);
if (ops->llsec) {
struct ieee802154_llsec_params params;
int changed = 0;
params.coord_shortaddr = addr->short_addr;
changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
params.pan_id = addr->pan_id;
changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
changed |= IEEE802154_LLSEC_PARAM_HWADDR;
params.coord_hwaddr = params.hwaddr;
changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
rc = ops->llsec->set_params(dev, &params, changed);
}
return rc;
}
static int mac802154_set_mac_params(struct net_device *dev,
const struct ieee802154_mac_params *params)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
struct ieee802154_local *local = sdata->local;
struct wpan_dev *wpan_dev = &sdata->wpan_dev;
int ret;
ASSERT_RTNL();
/* PHY */
wpan_dev->wpan_phy->transmit_power = params->transmit_power;
wpan_dev->wpan_phy->cca = params->cca;
wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;
/* MAC */
wpan_dev->min_be = params->min_be;
wpan_dev->max_be = params->max_be;
wpan_dev->csma_retries = params->csma_retries;
wpan_dev->frame_retries = params->frame_retries;
wpan_dev->lbt = params->lbt;
if (local->hw.flags & IEEE802154_HW_TXPOWER) {
ret = drv_set_tx_power(local, params->transmit_power);
if (ret < 0)
return ret;
}
if (local->hw.flags & IEEE802154_HW_CCA_MODE) {
ret = drv_set_cca_mode(local, &params->cca);
if (ret < 0)
return ret;
}
if (local->hw.flags & IEEE802154_HW_CCA_ED_LEVEL) {
ret = drv_set_cca_ed_level(local, params->cca_ed_level);
if (ret < 0)
return ret;
}
return 0;
}
static void mac802154_get_mac_params(struct net_device *dev,
struct ieee802154_mac_params *params)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
struct wpan_dev *wpan_dev = &sdata->wpan_dev;
ASSERT_RTNL();
/* PHY */
params->transmit_power = wpan_dev->wpan_phy->transmit_power;
params->cca = wpan_dev->wpan_phy->cca;
params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;
/* MAC */
params->min_be = wpan_dev->min_be;
params->max_be = wpan_dev->max_be;
params->csma_retries = wpan_dev->csma_retries;
params->frame_retries = wpan_dev->frame_retries;
params->lbt = wpan_dev->lbt;
}
static struct ieee802154_llsec_ops mac802154_llsec_ops = {
.get_params = mac802154_get_params,
.set_params = mac802154_set_params,
.add_key = mac802154_add_key,
.del_key = mac802154_del_key,
.add_dev = mac802154_add_dev,
.del_dev = mac802154_del_dev,
.add_devkey = mac802154_add_devkey,
.del_devkey = mac802154_del_devkey,
.add_seclevel = mac802154_add_seclevel,
.del_seclevel = mac802154_del_seclevel,
.lock_table = mac802154_lock_table,
.get_table = mac802154_get_table,
.unlock_table = mac802154_unlock_table,
};
struct ieee802154_mlme_ops mac802154_mlme_wpan = {
.start_req = mac802154_mlme_start_req,
.get_pan_id = mac802154_dev_get_pan_id,
.get_short_addr = mac802154_dev_get_short_addr,
.get_dsn = mac802154_dev_get_dsn,
.llsec = &mac802154_llsec_ops,
.set_mac_params = mac802154_set_mac_params,
.get_mac_params = mac802154_get_mac_params,
};