1 /* 2 * An interface between IEEE802.15.4 device and rest of the kernel. 3 * 4 * Copyright (C) 2007-2012 Siemens AG 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 8 * as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Written by: 20 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> 21 * Maxim Gorbachyov <maxim.gorbachev@siemens.com> 22 * Maxim Osipov <maxim.osipov@siemens.com> 23 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> 24 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> 25 */ 26 27 #ifndef IEEE802154_NETDEVICE_H 28 #define IEEE802154_NETDEVICE_H 29 30 #include <net/af_ieee802154.h> 31 32 struct ieee802154_frag_info { 33 __be16 d_tag; 34 u16 d_size; 35 u8 d_offset; 36 }; 37 38 /* 39 * A control block of skb passed between the ARPHRD_IEEE802154 device 40 * and other stack parts. 41 */ 42 struct ieee802154_mac_cb { 43 u8 lqi; 44 struct ieee802154_addr_sa sa; 45 struct ieee802154_addr_sa da; 46 u8 flags; 47 u8 seq; 48 struct ieee802154_frag_info frag_info; 49 }; 50 51 static inline struct ieee802154_mac_cb *mac_cb(struct sk_buff *skb) 52 { 53 return (struct ieee802154_mac_cb *)skb->cb; 54 } 55 56 #define MAC_CB_FLAG_TYPEMASK ((1 << 3) - 1) 57 58 #define MAC_CB_FLAG_ACKREQ (1 << 3) 59 #define MAC_CB_FLAG_SECEN (1 << 4) 60 #define MAC_CB_FLAG_INTRAPAN (1 << 5) 61 62 static inline int mac_cb_is_ackreq(struct sk_buff *skb) 63 { 64 return mac_cb(skb)->flags & MAC_CB_FLAG_ACKREQ; 65 } 66 67 static inline int mac_cb_is_secen(struct sk_buff *skb) 68 { 69 return mac_cb(skb)->flags & MAC_CB_FLAG_SECEN; 70 } 71 72 static inline int mac_cb_is_intrapan(struct sk_buff *skb) 73 { 74 return mac_cb(skb)->flags & MAC_CB_FLAG_INTRAPAN; 75 } 76 77 static inline int mac_cb_type(struct sk_buff *skb) 78 { 79 return mac_cb(skb)->flags & MAC_CB_FLAG_TYPEMASK; 80 } 81 82 #define IEEE802154_MAC_SCAN_ED 0 83 #define IEEE802154_MAC_SCAN_ACTIVE 1 84 #define IEEE802154_MAC_SCAN_PASSIVE 2 85 #define IEEE802154_MAC_SCAN_ORPHAN 3 86 87 struct wpan_phy; 88 /* 89 * This should be located at net_device->ml_priv 90 * 91 * get_phy should increment the reference counting on returned phy. 92 * Use wpan_wpy_put to put that reference. 93 */ 94 struct ieee802154_mlme_ops { 95 /* The following fields are optional (can be NULL). */ 96 97 int (*assoc_req)(struct net_device *dev, 98 struct ieee802154_addr_sa *addr, 99 u8 channel, u8 page, u8 cap); 100 int (*assoc_resp)(struct net_device *dev, 101 struct ieee802154_addr_sa *addr, 102 u16 short_addr, u8 status); 103 int (*disassoc_req)(struct net_device *dev, 104 struct ieee802154_addr_sa *addr, 105 u8 reason); 106 int (*start_req)(struct net_device *dev, 107 struct ieee802154_addr_sa *addr, 108 u8 channel, u8 page, u8 bcn_ord, u8 sf_ord, 109 u8 pan_coord, u8 blx, u8 coord_realign); 110 int (*scan_req)(struct net_device *dev, 111 u8 type, u32 channels, u8 page, u8 duration); 112 113 /* The fields below are required. */ 114 115 struct wpan_phy *(*get_phy)(const struct net_device *dev); 116 117 /* 118 * FIXME: these should become the part of PIB/MIB interface. 119 * However we still don't have IB interface of any kind 120 */ 121 u16 (*get_pan_id)(const struct net_device *dev); 122 u16 (*get_short_addr)(const struct net_device *dev); 123 u8 (*get_dsn)(const struct net_device *dev); 124 }; 125 126 /* The IEEE 802.15.4 standard defines 2 type of the devices: 127 * - FFD - full functionality device 128 * - RFD - reduce functionality device 129 * 130 * So 2 sets of mlme operations are needed 131 */ 132 struct ieee802154_reduced_mlme_ops { 133 struct wpan_phy *(*get_phy)(const struct net_device *dev); 134 }; 135 136 static inline struct ieee802154_mlme_ops * 137 ieee802154_mlme_ops(const struct net_device *dev) 138 { 139 return dev->ml_priv; 140 } 141 142 static inline struct ieee802154_reduced_mlme_ops * 143 ieee802154_reduced_mlme_ops(const struct net_device *dev) 144 { 145 return dev->ml_priv; 146 } 147 148 #endif 149