tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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)))
31int 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
37struct 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
45struct 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
56int __init rawsock_init(void);
57void rawsock_exit(void);
58
59int __init af_nfc_init(void);
60void af_nfc_exit(void);
61int nfc_proto_register(const struct nfc_protocol *nfc_proto);
62void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
63
64extern int nfc_devlist_generation;
65extern struct mutex nfc_devlist_mutex;
66
67int __init nfc_genl_init(void);
68void nfc_genl_exit(void);
69
70void nfc_genl_data_init(struct nfc_genl_data *genl_data);
71void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
72
73int nfc_genl_targets_found(struct nfc_dev *dev);
74
75int nfc_genl_device_added(struct nfc_dev *dev);
76int nfc_genl_device_removed(struct nfc_dev *dev);
77
78struct nfc_dev *nfc_get_device(unsigned idx);
79
80static inline void nfc_put_device(struct nfc_dev *dev)
81{
82 put_device(&dev->dev);
83}
84
85static inline void nfc_device_iter_init(struct class_dev_iter *iter)
86{
87 class_dev_iter_init(iter, &nfc_class, NULL, NULL);
88}
89
90static 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
99static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
100{
101 class_dev_iter_exit(iter);
102}
103
104int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
105
106int nfc_stop_poll(struct nfc_dev *dev);
107
108int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
109
110int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
111
112int 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 */