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/* 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.
*
* Authors:
* Alexander Aring <aar@pengutronix.de>
*
* Based on: net/mac80211/cfg.c
*/
#include <net/rtnetlink.h>
#include <net/cfg802154.h>
#include "ieee802154_i.h"
#include "driver-ops.h"
#include "cfg.h"
static struct net_device *
ieee802154_add_iface_deprecated(struct wpan_phy *wpan_phy,
const char *name,
unsigned char name_assign_type, int type)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
struct net_device *dev;
rtnl_lock();
dev = ieee802154_if_add(local, name, name_assign_type, type,
cpu_to_le64(0x0000000000000000ULL));
rtnl_unlock();
return dev;
}
static void ieee802154_del_iface_deprecated(struct wpan_phy *wpan_phy,
struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
ieee802154_if_remove(sdata);
}
static int
ieee802154_add_iface(struct wpan_phy *phy, const char *name,
unsigned char name_assign_type,
enum nl802154_iftype type, __le64 extended_addr)
{
struct ieee802154_local *local = wpan_phy_priv(phy);
struct net_device *err;
err = ieee802154_if_add(local, name, name_assign_type, type,
extended_addr);
return PTR_ERR_OR_ZERO(err);
}
static int
ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
{
ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
return 0;
}
static int
ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
int ret;
ASSERT_RTNL();
/* check if phy support this setting */
if (!(wpan_phy->channels_supported[page] & BIT(channel)))
return -EINVAL;
ret = drv_set_channel(local, page, channel);
if (!ret) {
wpan_phy->current_page = page;
wpan_phy->current_channel = channel;
}
return ret;
}
static int
ieee802154_set_cca_mode(struct wpan_phy *wpan_phy,
const struct wpan_phy_cca *cca)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
int ret;
ASSERT_RTNL();
/* check if phy support this setting */
if (!(local->hw.flags & IEEE802154_HW_CCA_MODE))
return -EOPNOTSUPP;
ret = drv_set_cca_mode(local, cca);
if (!ret)
wpan_phy->cca = *cca;
return ret;
}
static int
ieee802154_set_pan_id(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
__le16 pan_id)
{
ASSERT_RTNL();
/* TODO
* I am not sure about to check here on broadcast pan_id.
* Broadcast is a valid setting, comment from 802.15.4:
* If this value is 0xffff, the device is not associated.
*
* This could useful to simple deassociate an device.
*/
if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
return -EINVAL;
wpan_dev->pan_id = pan_id;
return 0;
}
static int
ieee802154_set_backoff_exponent(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
u8 min_be, u8 max_be)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
ASSERT_RTNL();
if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS))
return -EOPNOTSUPP;
wpan_dev->min_be = min_be;
wpan_dev->max_be = max_be;
return 0;
}
static int
ieee802154_set_short_addr(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
__le16 short_addr)
{
ASSERT_RTNL();
/* TODO
* I am not sure about to check here on broadcast short_addr.
* Broadcast is a valid setting, comment from 802.15.4:
* A value of 0xfffe indicates that the device has
* associated but has not been allocated an address. A
* value of 0xffff indicates that the device does not
* have a short address.
*
* I think we should allow to set these settings but
* don't allow to allow socket communication with it.
*/
if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
return -EINVAL;
wpan_dev->short_addr = short_addr;
return 0;
}
static int
ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
u8 max_csma_backoffs)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
ASSERT_RTNL();
if (!(local->hw.flags & IEEE802154_HW_CSMA_PARAMS))
return -EOPNOTSUPP;
wpan_dev->csma_retries = max_csma_backoffs;
return 0;
}
static int
ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
s8 max_frame_retries)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
ASSERT_RTNL();
if (!(local->hw.flags & IEEE802154_HW_FRAME_RETRIES))
return -EOPNOTSUPP;
wpan_dev->frame_retries = max_frame_retries;
return 0;
}
static int
ieee802154_set_lbt_mode(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
bool mode)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
ASSERT_RTNL();
if (!(local->hw.flags & IEEE802154_HW_LBT))
return -EOPNOTSUPP;
wpan_dev->lbt = mode;
return 0;
}
const struct cfg802154_ops mac802154_config_ops = {
.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
.add_virtual_intf = ieee802154_add_iface,
.del_virtual_intf = ieee802154_del_iface,
.set_channel = ieee802154_set_channel,
.set_cca_mode = ieee802154_set_cca_mode,
.set_pan_id = ieee802154_set_pan_id,
.set_short_addr = ieee802154_set_short_addr,
.set_backoff_exponent = ieee802154_set_backoff_exponent,
.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
.set_max_frame_retries = ieee802154_set_max_frame_retries,
.set_lbt_mode = ieee802154_set_lbt_mode,
};
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