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, see <http://www.gnu.org/licenses/>.
20 */
21
22 #ifndef __LOCAL_NFC_H
23 #define __LOCAL_NFC_H
24
25 #include <net/nfc/nfc.h>
26 #include <net/sock.h>
27
28 #define NFC_TARGET_MODE_IDLE 0
29 #define NFC_TARGET_MODE_SLEEP 1
30
31 struct nfc_protocol {
32 int id;
33 struct proto *proto;
34 struct module *owner;
35 int (*create)(struct net *net, struct socket *sock,
36 const struct nfc_protocol *nfc_proto, int kern);
37 };
38
39 struct nfc_rawsock {
40 struct sock sk;
41 struct nfc_dev *dev;
42 u32 target_idx;
43 struct work_struct tx_work;
44 bool tx_work_scheduled;
45 };
46
47 struct nfc_sock_list {
48 struct hlist_head head;
49 rwlock_t lock;
50 };
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 struct nfc_llcp_sdp_tlv;
57
58 void nfc_llcp_mac_is_down(struct nfc_dev *dev);
59 void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
60 u8 comm_mode, u8 rf_mode);
61 int nfc_llcp_register_device(struct nfc_dev *dev);
62 void nfc_llcp_unregister_device(struct nfc_dev *dev);
63 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
64 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
65 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
66 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
67 int __init nfc_llcp_init(void);
68 void nfc_llcp_exit(void);
69 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
70 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
71
72 int __init rawsock_init(void);
73 void rawsock_exit(void);
74
75 int __init af_nfc_init(void);
76 void af_nfc_exit(void);
77 int nfc_proto_register(const struct nfc_protocol *nfc_proto);
78 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
79
80 extern int nfc_devlist_generation;
81 extern struct mutex nfc_devlist_mutex;
82
83 int __init nfc_genl_init(void);
84 void nfc_genl_exit(void);
85
86 void nfc_genl_data_init(struct nfc_genl_data *genl_data);
87 void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
88
89 int nfc_genl_targets_found(struct nfc_dev *dev);
90 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
91
92 int nfc_genl_device_added(struct nfc_dev *dev);
93 int nfc_genl_device_removed(struct nfc_dev *dev);
94
95 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
96 u8 comm_mode, u8 rf_mode);
97 int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
98
99 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
100 int nfc_genl_tm_deactivated(struct nfc_dev *dev);
101
102 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
103
104 int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
105 int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
106 int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
107 struct nfc_evt_transaction *evt_transaction);
108 int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx);
109
110 struct nfc_dev *nfc_get_device(unsigned int idx);
111
nfc_put_device(struct nfc_dev * dev)112 static inline void nfc_put_device(struct nfc_dev *dev)
113 {
114 put_device(&dev->dev);
115 }
116
nfc_device_iter_init(struct class_dev_iter * iter)117 static inline void nfc_device_iter_init(struct class_dev_iter *iter)
118 {
119 class_dev_iter_init(iter, &nfc_class, NULL, NULL);
120 }
121
nfc_device_iter_next(struct class_dev_iter * iter)122 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
123 {
124 struct device *d = class_dev_iter_next(iter);
125 if (!d)
126 return NULL;
127
128 return to_nfc_dev(d);
129 }
130
nfc_device_iter_exit(struct class_dev_iter * iter)131 static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
132 {
133 class_dev_iter_exit(iter);
134 }
135
136 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
137 int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
138 u32 result);
139
140 int nfc_dev_up(struct nfc_dev *dev);
141
142 int nfc_dev_down(struct nfc_dev *dev);
143
144 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
145
146 int nfc_stop_poll(struct nfc_dev *dev);
147
148 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
149
150 int nfc_dep_link_down(struct nfc_dev *dev);
151
152 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
153
154 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
155
156 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
157 data_exchange_cb_t cb, void *cb_context);
158
159 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
160 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
161
162 #endif /* __LOCAL_NFC_H */
163