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 #ifdef CONFIG_NFC_LLCP 50 51 void nfc_llcp_mac_is_down(struct nfc_dev *dev); 52 void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, 53 u8 comm_mode, u8 rf_mode); 54 int nfc_llcp_register_device(struct nfc_dev *dev); 55 void nfc_llcp_unregister_device(struct nfc_dev *dev); 56 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len); 57 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); 58 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb); 59 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev); 60 int __init nfc_llcp_init(void); 61 void nfc_llcp_exit(void); 62 63 #else 64 65 static inline void nfc_llcp_mac_is_down(struct nfc_dev *dev) 66 { 67 } 68 69 static inline void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, 70 u8 comm_mode, u8 rf_mode) 71 { 72 } 73 74 static inline int nfc_llcp_register_device(struct nfc_dev *dev) 75 { 76 return 0; 77 } 78 79 static inline void nfc_llcp_unregister_device(struct nfc_dev *dev) 80 { 81 } 82 83 static inline int nfc_llcp_set_remote_gb(struct nfc_dev *dev, 84 u8 *gb, u8 gb_len) 85 { 86 return 0; 87 } 88 89 static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len) 90 { 91 *gb_len = 0; 92 return NULL; 93 } 94 95 static inline int nfc_llcp_data_received(struct nfc_dev *dev, 96 struct sk_buff *skb) 97 { 98 return 0; 99 } 100 101 static inline struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev) 102 { 103 return NULL; 104 } 105 106 static inline int nfc_llcp_init(void) 107 { 108 return 0; 109 } 110 111 static inline void nfc_llcp_exit(void) 112 { 113 } 114 115 #endif 116 117 int __init rawsock_init(void); 118 void rawsock_exit(void); 119 120 int __init af_nfc_init(void); 121 void af_nfc_exit(void); 122 int nfc_proto_register(const struct nfc_protocol *nfc_proto); 123 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); 124 125 extern int nfc_devlist_generation; 126 extern struct mutex nfc_devlist_mutex; 127 128 int __init nfc_genl_init(void); 129 void nfc_genl_exit(void); 130 131 void nfc_genl_data_init(struct nfc_genl_data *genl_data); 132 void nfc_genl_data_exit(struct nfc_genl_data *genl_data); 133 134 int nfc_genl_targets_found(struct nfc_dev *dev); 135 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx); 136 137 int nfc_genl_device_added(struct nfc_dev *dev); 138 int nfc_genl_device_removed(struct nfc_dev *dev); 139 140 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, 141 u8 comm_mode, u8 rf_mode); 142 int nfc_genl_dep_link_down_event(struct nfc_dev *dev); 143 144 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); 145 int nfc_genl_tm_deactivated(struct nfc_dev *dev); 146 147 struct nfc_dev *nfc_get_device(unsigned int idx); 148 149 static inline void nfc_put_device(struct nfc_dev *dev) 150 { 151 put_device(&dev->dev); 152 } 153 154 static inline void nfc_device_iter_init(struct class_dev_iter *iter) 155 { 156 class_dev_iter_init(iter, &nfc_class, NULL, NULL); 157 } 158 159 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) 160 { 161 struct device *d = class_dev_iter_next(iter); 162 if (!d) 163 return NULL; 164 165 return to_nfc_dev(d); 166 } 167 168 static inline void nfc_device_iter_exit(struct class_dev_iter *iter) 169 { 170 class_dev_iter_exit(iter); 171 } 172 173 int nfc_dev_up(struct nfc_dev *dev); 174 175 int nfc_dev_down(struct nfc_dev *dev); 176 177 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); 178 179 int nfc_stop_poll(struct nfc_dev *dev); 180 181 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); 182 183 int nfc_dep_link_down(struct nfc_dev *dev); 184 185 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); 186 187 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx); 188 189 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, 190 data_exchange_cb_t cb, void *cb_context); 191 192 #endif /* __LOCAL_NFC_H */ 193