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