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.h> 28 #include <net/sock.h> 29 30 __attribute__((format (printf, 2, 3))) 31 int nfc_printk(const char *level, const char *fmt, ...); 32 33 #define nfc_info(fmt, arg...) nfc_printk(KERN_INFO, fmt, ##arg) 34 #define nfc_err(fmt, arg...) nfc_printk(KERN_ERR, fmt, ##arg) 35 #define nfc_dbg(fmt, arg...) pr_debug(fmt "\n", ##arg) 36 37 struct nfc_protocol { 38 int id; 39 struct proto *proto; 40 struct module *owner; 41 int (*create)(struct net *net, struct socket *sock, 42 const struct nfc_protocol *nfc_proto); 43 }; 44 45 struct nfc_rawsock { 46 struct sock sk; 47 struct nfc_dev *dev; 48 u32 target_idx; 49 struct work_struct tx_work; 50 bool tx_work_scheduled; 51 }; 52 #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk) 53 #define to_rawsock_sk(_tx_work) \ 54 ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work)) 55 56 int __init rawsock_init(void); 57 void rawsock_exit(void); 58 59 int __init af_nfc_init(void); 60 void af_nfc_exit(void); 61 int nfc_proto_register(const struct nfc_protocol *nfc_proto); 62 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); 63 64 extern int nfc_devlist_generation; 65 extern struct mutex nfc_devlist_mutex; 66 67 int __init nfc_genl_init(void); 68 void nfc_genl_exit(void); 69 70 void nfc_genl_data_init(struct nfc_genl_data *genl_data); 71 void nfc_genl_data_exit(struct nfc_genl_data *genl_data); 72 73 int nfc_genl_targets_found(struct nfc_dev *dev); 74 75 int nfc_genl_device_added(struct nfc_dev *dev); 76 int nfc_genl_device_removed(struct nfc_dev *dev); 77 78 struct nfc_dev *nfc_get_device(unsigned idx); 79 80 static inline void nfc_put_device(struct nfc_dev *dev) 81 { 82 put_device(&dev->dev); 83 } 84 85 static inline void nfc_device_iter_init(struct class_dev_iter *iter) 86 { 87 class_dev_iter_init(iter, &nfc_class, NULL, NULL); 88 } 89 90 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) 91 { 92 struct device *d = class_dev_iter_next(iter); 93 if (!d) 94 return NULL; 95 96 return to_nfc_dev(d); 97 } 98 99 static inline void nfc_device_iter_exit(struct class_dev_iter *iter) 100 { 101 class_dev_iter_exit(iter); 102 } 103 104 int nfc_start_poll(struct nfc_dev *dev, u32 protocols); 105 106 int nfc_stop_poll(struct nfc_dev *dev); 107 108 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); 109 110 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx); 111 112 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, 113 struct sk_buff *skb, 114 data_exchange_cb_t cb, 115 void *cb_context); 116 117 #endif /* __LOCAL_NFC_H */ 118