1 /* 2 * Copyright (C) 2011 Instituto Nokia de Tecnologia 3 * 4 * Authors: 5 * Lauro Ramos Venancio <lauro.venancio@openbossa.org> 6 * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the 20 * Free Software Foundation, Inc., 21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22 */ 23 24 #ifndef __LOCAL_NFC_H 25 #define __LOCAL_NFC_H 26 27 #include <net/nfc/nfc.h> 28 #include <net/sock.h> 29 30 struct nfc_protocol { 31 int id; 32 struct proto *proto; 33 struct module *owner; 34 int (*create)(struct net *net, struct socket *sock, 35 const struct nfc_protocol *nfc_proto); 36 }; 37 38 struct nfc_rawsock { 39 struct sock sk; 40 struct nfc_dev *dev; 41 u32 target_idx; 42 struct work_struct tx_work; 43 bool tx_work_scheduled; 44 }; 45 #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk) 46 #define to_rawsock_sk(_tx_work) \ 47 ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work)) 48 49 struct nfc_llcp_sdp_tlv; 50 51 #ifdef CONFIG_NFC_LLCP 52 53 void nfc_llcp_mac_is_down(struct nfc_dev *dev); 54 void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, 55 u8 comm_mode, u8 rf_mode); 56 int nfc_llcp_register_device(struct nfc_dev *dev); 57 void nfc_llcp_unregister_device(struct nfc_dev *dev); 58 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len); 59 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); 60 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb); 61 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev); 62 int __init nfc_llcp_init(void); 63 void nfc_llcp_exit(void); 64 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp); 65 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head); 66 67 #else 68 69 static inline void nfc_llcp_mac_is_down(struct nfc_dev *dev) 70 { 71 } 72 73 static inline void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, 74 u8 comm_mode, u8 rf_mode) 75 { 76 } 77 78 static inline int nfc_llcp_register_device(struct nfc_dev *dev) 79 { 80 return 0; 81 } 82 83 static inline void nfc_llcp_unregister_device(struct nfc_dev *dev) 84 { 85 } 86 87 static inline int nfc_llcp_set_remote_gb(struct nfc_dev *dev, 88 u8 *gb, u8 gb_len) 89 { 90 return 0; 91 } 92 93 static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len) 94 { 95 *gb_len = 0; 96 return NULL; 97 } 98 99 static inline int nfc_llcp_data_received(struct nfc_dev *dev, 100 struct sk_buff *skb) 101 { 102 return 0; 103 } 104 105 static inline struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev) 106 { 107 return NULL; 108 } 109 110 static inline int nfc_llcp_init(void) 111 { 112 return 0; 113 } 114 115 static inline void nfc_llcp_exit(void) 116 { 117 } 118 119 static inline void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp) 120 { 121 } 122 123 static inline void nfc_llcp_free_sdp_tlv_list(struct hlist_head *sdp_head) 124 { 125 } 126 127 #endif 128 129 int __init rawsock_init(void); 130 void rawsock_exit(void); 131 132 int __init af_nfc_init(void); 133 void af_nfc_exit(void); 134 int nfc_proto_register(const struct nfc_protocol *nfc_proto); 135 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); 136 137 extern int nfc_devlist_generation; 138 extern struct mutex nfc_devlist_mutex; 139 140 int __init nfc_genl_init(void); 141 void nfc_genl_exit(void); 142 143 void nfc_genl_data_init(struct nfc_genl_data *genl_data); 144 void nfc_genl_data_exit(struct nfc_genl_data *genl_data); 145 146 int nfc_genl_targets_found(struct nfc_dev *dev); 147 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx); 148 149 int nfc_genl_device_added(struct nfc_dev *dev); 150 int nfc_genl_device_removed(struct nfc_dev *dev); 151 152 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, 153 u8 comm_mode, u8 rf_mode); 154 int nfc_genl_dep_link_down_event(struct nfc_dev *dev); 155 156 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); 157 int nfc_genl_tm_deactivated(struct nfc_dev *dev); 158 159 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list); 160 161 struct nfc_dev *nfc_get_device(unsigned int idx); 162 163 static inline void nfc_put_device(struct nfc_dev *dev) 164 { 165 put_device(&dev->dev); 166 } 167 168 static inline void nfc_device_iter_init(struct class_dev_iter *iter) 169 { 170 class_dev_iter_init(iter, &nfc_class, NULL, NULL); 171 } 172 173 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) 174 { 175 struct device *d = class_dev_iter_next(iter); 176 if (!d) 177 return NULL; 178 179 return to_nfc_dev(d); 180 } 181 182 static inline void nfc_device_iter_exit(struct class_dev_iter *iter) 183 { 184 class_dev_iter_exit(iter); 185 } 186 187 int nfc_dev_up(struct nfc_dev *dev); 188 189 int nfc_dev_down(struct nfc_dev *dev); 190 191 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); 192 193 int nfc_stop_poll(struct nfc_dev *dev); 194 195 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); 196 197 int nfc_dep_link_down(struct nfc_dev *dev); 198 199 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); 200 201 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx); 202 203 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, 204 data_exchange_cb_t cb, void *cb_context); 205 206 #endif /* __LOCAL_NFC_H */ 207