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kernel/linux-imx6_3.14.28/include/net/ieee802154_netdev.h 3.89 KB
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  /*
   * An interface between IEEE802.15.4 device and rest of the kernel.
   *
   * Copyright (C) 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.
   *
   * You should have received a copy of the GNU General Public License along
   * with this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Written by:
   * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
   * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
   * Maxim Osipov <maxim.osipov@siemens.com>
   * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
   * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
   */
  
  #ifndef IEEE802154_NETDEVICE_H
  #define IEEE802154_NETDEVICE_H
  
  #include <net/af_ieee802154.h>
  
  /*
   * A control block of skb passed between the ARPHRD_IEEE802154 device
   * and other stack parts.
   */
  struct ieee802154_mac_cb {
  	u8 lqi;
  	struct ieee802154_addr sa;
  	struct ieee802154_addr da;
  	u8 flags;
  	u8 seq;
  };
  
  static inline struct ieee802154_mac_cb *mac_cb(struct sk_buff *skb)
  {
  	return (struct ieee802154_mac_cb *)skb->cb;
  }
  
  #define MAC_CB_FLAG_TYPEMASK		((1 << 3) - 1)
  
  #define MAC_CB_FLAG_ACKREQ		(1 << 3)
  #define MAC_CB_FLAG_SECEN		(1 << 4)
  #define MAC_CB_FLAG_INTRAPAN		(1 << 5)
  
  static inline int mac_cb_is_ackreq(struct sk_buff *skb)
  {
  	return mac_cb(skb)->flags & MAC_CB_FLAG_ACKREQ;
  }
  
  static inline int mac_cb_is_secen(struct sk_buff *skb)
  {
  	return mac_cb(skb)->flags & MAC_CB_FLAG_SECEN;
  }
  
  static inline int mac_cb_is_intrapan(struct sk_buff *skb)
  {
  	return mac_cb(skb)->flags & MAC_CB_FLAG_INTRAPAN;
  }
  
  static inline int mac_cb_type(struct sk_buff *skb)
  {
  	return mac_cb(skb)->flags & MAC_CB_FLAG_TYPEMASK;
  }
  
  #define IEEE802154_MAC_SCAN_ED		0
  #define IEEE802154_MAC_SCAN_ACTIVE	1
  #define IEEE802154_MAC_SCAN_PASSIVE	2
  #define IEEE802154_MAC_SCAN_ORPHAN	3
  
  struct wpan_phy;
  /*
   * This should be located at net_device->ml_priv
   *
   * get_phy should increment the reference counting on returned phy.
   * Use wpan_wpy_put to put that reference.
   */
  struct ieee802154_mlme_ops {
  	/* The following fields are optional (can be NULL). */
  
  	int (*assoc_req)(struct net_device *dev,
  			struct ieee802154_addr *addr,
  			u8 channel, u8 page, u8 cap);
  	int (*assoc_resp)(struct net_device *dev,
  			struct ieee802154_addr *addr,
  			u16 short_addr, u8 status);
  	int (*disassoc_req)(struct net_device *dev,
  			struct ieee802154_addr *addr,
  			u8 reason);
  	int (*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);
  	int (*scan_req)(struct net_device *dev,
  			u8 type, u32 channels, u8 page, u8 duration);
  
  	/* The fields below are required. */
  
  	struct wpan_phy *(*get_phy)(const struct net_device *dev);
  
  	/*
  	 * FIXME: these should become the part of PIB/MIB interface.
  	 * However we still don't have IB interface of any kind
  	 */
  	u16 (*get_pan_id)(const struct net_device *dev);
  	u16 (*get_short_addr)(const struct net_device *dev);
  	u8 (*get_dsn)(const struct net_device *dev);
  };
  
  /* The IEEE 802.15.4 standard defines 2 type of the devices:
   * - FFD - full functionality device
   * - RFD - reduce functionality device
   *
   * So 2 sets of mlme operations are needed
   */
  struct ieee802154_reduced_mlme_ops {
  	struct wpan_phy *(*get_phy)(const struct net_device *dev);
  };
  
  static inline struct ieee802154_mlme_ops *
  ieee802154_mlme_ops(const struct net_device *dev)
  {
  	return dev->ml_priv;
  }
  
  static inline struct ieee802154_reduced_mlme_ops *
  ieee802154_reduced_mlme_ops(const struct net_device *dev)
  {
  	return dev->ml_priv;
  }
  
  #endif