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