/* * IEEE802.15.4-2003 specification * * 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. */#ifndef NET_MAC802154_H#define NET_MAC802154_H #include <net/af_ieee802154.h> /* General MAC frame format: *  2 bytes: Frame Control *  1 byte:  Sequence Number * 20 bytes: Addressing fields * 14 bytes: Auxiliary Security Header */#define MAC802154_FRAME_HARD_HEADER_LEN		(2 + 1 + 20 + 14) /* The following flags are used to indicate changed address settings from * the stack to the hardware. */ /* indicates that the Short Address changed */#define IEEE802515_AFILT_SADDR_CHANGED		0x00000001/* indicates that the IEEE Address changed */#define IEEE802515_AFILT_IEEEADDR_CHANGED	0x00000002/* indicates that the PAN ID changed */#define IEEE802515_AFILT_PANID_CHANGED		0x00000004/* indicates that PAN Coordinator status changed */#define	IEEE802515_AFILT_PANC_CHANGED		0x00000008 struct ieee802154_hw_addr_filt {	__le16	pan_id;		/* Each independent PAN selects a unique				 * identifier. This PAN id allows communication				 * between devices within a network using short				 * addresses and enables transmissions between				 * devices across independent networks.				 */	__le16	short_addr;	u8	ieee_addr[IEEE802154_ADDR_LEN];	u8	pan_coord;}; struct ieee802154_dev {	/* filled by the driver */	int	extra_tx_headroom;	u32	flags;	struct	device *parent; 	/* filled by mac802154 core */	struct	ieee802154_hw_addr_filt hw_filt;	void	*priv;	struct	wpan_phy *phy;}; /* Checksum is in hardware and is omitted from a packet * * These following flags are used to indicate hardware capabilities to * the stack. Generally, flags here should have their meaning * done in a way that the simplest hardware doesn't need setting * any particular flags. There are some exceptions to this rule, * however, so you are advised to review these flags carefully. */ /* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */#define	IEEE802154_HW_OMIT_CKSUM	0x00000001/* Indicates that receiver will autorespond with ACK frames. */#define	IEEE802154_HW_AACK		0x00000002 /* struct ieee802154_ops - callbacks from mac802154 to the driver * * This structure contains various callbacks that the driver may * handle or, in some cases, must handle, for example to transmit * a frame. * * start: Handler that 802.15.4 module calls for device initialization. *	  This function is called before the first interface is attached. * * stop:  Handler that 802.15.4 module calls for device cleanup. *	  This function is called after the last interface is removed. * * xmit:  Handler that 802.15.4 module calls for each transmitted frame. *	  skb cntains the buffer starting from the IEEE 802.15.4 header. *	  The low-level driver should send the frame based on available *	  configuration. *	  This function should return zero or negative errno. Called with *	  pib_lock held. * * ed:    Handler that 802.15.4 module calls for Energy Detection. *	  This function should place the value for detected energy *	  (usually device-dependant) in the level pointer and return *	  either zero or negative errno. Called with pib_lock held. * * set_channel: * 	  Set radio for listening on specific channel. *	  Set the device for listening on specified channel. *	  Returns either zero, or negative errno. Called with pib_lock held. * * set_hw_addr_filt: *	  Set radio for listening on specific address. *	  Set the device for listening on specified address. *	  Returns either zero, or negative errno. */struct ieee802154_ops {	struct module	*owner;	int		(*start)(struct ieee802154_dev *dev);	void		(*stop)(struct ieee802154_dev *dev);	int		(*xmit)(struct ieee802154_dev *dev,				struct sk_buff *skb);	int		(*ed)(struct ieee802154_dev *dev, u8 *level);	int		(*set_channel)(struct ieee802154_dev *dev,				       int page,				       int channel);	int		(*set_hw_addr_filt)(struct ieee802154_dev *dev,					  struct ieee802154_hw_addr_filt *filt,					    unsigned long changed);	int		(*ieee_addr)(struct ieee802154_dev *dev,				     u8 addr[IEEE802154_ADDR_LEN]);}; /* Basic interface to register ieee802154 device */struct ieee802154_dev *ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops);void ieee802154_free_device(struct ieee802154_dev *dev);int ieee802154_register_device(struct ieee802154_dev *dev);void ieee802154_unregister_device(struct ieee802154_dev *dev); void ieee802154_rx_irqsafe(struct ieee802154_dev *dev, struct sk_buff *skb,			   u8 lqi); #endif /* NET_MAC802154_H */