xref: /openbmc/linux/net/nfc/nfc.h (revision 089a49b6)
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 struct nfc_llcp_sdp_tlv;
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 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
60 int __init nfc_llcp_init(void);
61 void nfc_llcp_exit(void);
62 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
63 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
64 
65 int __init rawsock_init(void);
66 void rawsock_exit(void);
67 
68 int __init af_nfc_init(void);
69 void af_nfc_exit(void);
70 int nfc_proto_register(const struct nfc_protocol *nfc_proto);
71 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
72 
73 extern int nfc_devlist_generation;
74 extern struct mutex nfc_devlist_mutex;
75 
76 int __init nfc_genl_init(void);
77 void nfc_genl_exit(void);
78 
79 void nfc_genl_data_init(struct nfc_genl_data *genl_data);
80 void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
81 
82 int nfc_genl_targets_found(struct nfc_dev *dev);
83 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
84 
85 int nfc_genl_device_added(struct nfc_dev *dev);
86 int nfc_genl_device_removed(struct nfc_dev *dev);
87 
88 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
89 			       u8 comm_mode, u8 rf_mode);
90 int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
91 
92 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
93 int nfc_genl_tm_deactivated(struct nfc_dev *dev);
94 
95 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
96 
97 int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
98 int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
99 
100 struct nfc_dev *nfc_get_device(unsigned int idx);
101 
102 static inline void nfc_put_device(struct nfc_dev *dev)
103 {
104 	put_device(&dev->dev);
105 }
106 
107 static inline void nfc_device_iter_init(struct class_dev_iter *iter)
108 {
109 	class_dev_iter_init(iter, &nfc_class, NULL, NULL);
110 }
111 
112 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
113 {
114 	struct device *d = class_dev_iter_next(iter);
115 	if (!d)
116 		return NULL;
117 
118 	return to_nfc_dev(d);
119 }
120 
121 static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
122 {
123 	class_dev_iter_exit(iter);
124 }
125 
126 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
127 int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
128 			      u32 result);
129 
130 int nfc_dev_up(struct nfc_dev *dev);
131 
132 int nfc_dev_down(struct nfc_dev *dev);
133 
134 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
135 
136 int nfc_stop_poll(struct nfc_dev *dev);
137 
138 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
139 
140 int nfc_dep_link_down(struct nfc_dev *dev);
141 
142 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
143 
144 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
145 
146 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
147 		      data_exchange_cb_t cb, void *cb_context);
148 
149 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
150 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
151 
152 #endif /* __LOCAL_NFC_H */
153