![Alexander Aring](/assets/img/avatar_default.png)
This patch adds support for setting cca parameters via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
170 lines
4.3 KiB
C
170 lines
4.3 KiB
C
/*
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* Copyright (C) 2007, 2008, 2009 Siemens AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Written by:
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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*/
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#ifndef __NET_CFG802154_H
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#define __NET_CFG802154_H
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#include <linux/ieee802154.h>
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#include <linux/netdevice.h>
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#include <linux/mutex.h>
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#include <linux/bug.h>
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#include <net/nl802154.h>
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struct wpan_phy;
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struct wpan_phy_cca;
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struct cfg802154_ops {
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struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
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const char *name,
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int type);
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void (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
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struct net_device *dev);
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int (*add_virtual_intf)(struct wpan_phy *wpan_phy,
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const char *name,
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enum nl802154_iftype type,
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__le64 extended_addr);
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int (*del_virtual_intf)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev);
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int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
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int (*set_cca_mode)(struct wpan_phy *wpan_phy,
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const struct wpan_phy_cca *cca);
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int (*set_pan_id)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, __le16 pan_id);
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int (*set_short_addr)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, __le16 short_addr);
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int (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, u8 min_be,
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u8 max_be);
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int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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u8 max_csma_backoffs);
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int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev,
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s8 max_frame_retries);
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int (*set_lbt_mode)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, bool mode);
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};
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struct wpan_phy_cca {
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enum nl802154_cca_modes mode;
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enum nl802154_cca_opts opt;
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};
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struct wpan_phy {
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struct mutex pib_lock;
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/* If multiple wpan_phys are registered and you're handed e.g.
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* a regular netdev with assigned ieee802154_ptr, you won't
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* know whether it points to a wpan_phy your driver has registered
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* or not. Assign this to something global to your driver to
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* help determine whether you own this wpan_phy or not.
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*/
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const void *privid;
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/*
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* This is a PIB according to 802.15.4-2011.
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* We do not provide timing-related variables, as they
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* aren't used outside of driver
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*/
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u8 current_channel;
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u8 current_page;
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u32 channels_supported[IEEE802154_MAX_PAGE + 1];
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s8 transmit_power;
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struct wpan_phy_cca cca;
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__le64 perm_extended_addr;
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s32 cca_ed_level;
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/* PHY depended MAC PIB values */
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/* 802.15.4 acronym: Tdsym in usec */
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u8 symbol_duration;
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/* lifs and sifs periods timing */
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u16 lifs_period;
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u16 sifs_period;
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struct device dev;
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char priv[0] __aligned(NETDEV_ALIGN);
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};
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struct wpan_dev {
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struct wpan_phy *wpan_phy;
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int iftype;
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/* the remainder of this struct should be private to cfg802154 */
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struct list_head list;
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struct net_device *netdev;
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u32 identifier;
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/* MAC PIB */
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__le16 pan_id;
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__le16 short_addr;
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__le64 extended_addr;
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/* MAC BSN field */
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u8 bsn;
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/* MAC DSN field */
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u8 dsn;
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u8 min_be;
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u8 max_be;
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u8 csma_retries;
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s8 frame_retries;
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bool lbt;
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bool promiscuous_mode;
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};
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#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
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struct wpan_phy *
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wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
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static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
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{
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phy->dev.parent = dev;
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}
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int wpan_phy_register(struct wpan_phy *phy);
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void wpan_phy_unregister(struct wpan_phy *phy);
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void wpan_phy_free(struct wpan_phy *phy);
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/* Same semantics as for class_for_each_device */
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int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
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static inline void *wpan_phy_priv(struct wpan_phy *phy)
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{
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BUG_ON(!phy);
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return &phy->priv;
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}
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struct wpan_phy *wpan_phy_find(const char *str);
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static inline void wpan_phy_put(struct wpan_phy *phy)
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{
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put_device(&phy->dev);
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}
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static inline const char *wpan_phy_name(struct wpan_phy *phy)
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{
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return dev_name(&phy->dev);
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}
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#endif /* __NET_CFG802154_H */
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