1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Copyright (C) 2011 Instituto Nokia de Tecnologia |
4 | * |
5 | * Authors: |
6 | * Lauro Ramos Venancio <lauro.venancio@openbossa.org> |
7 | * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> |
8 | */ |
9 | |
10 | #ifndef __LOCAL_NFC_H |
11 | #define __LOCAL_NFC_H |
12 | |
13 | #include <net/nfc/nfc.h> |
14 | #include <net/sock.h> |
15 | |
16 | #define NFC_TARGET_MODE_IDLE 0 |
17 | #define NFC_TARGET_MODE_SLEEP 1 |
18 | |
19 | struct nfc_protocol { |
20 | int id; |
21 | struct proto *proto; |
22 | struct module *owner; |
23 | int (*create)(struct net *net, struct socket *sock, |
24 | const struct nfc_protocol *nfc_proto, int kern); |
25 | }; |
26 | |
27 | struct nfc_rawsock { |
28 | struct sock sk; |
29 | struct nfc_dev *dev; |
30 | u32 target_idx; |
31 | struct work_struct tx_work; |
32 | bool tx_work_scheduled; |
33 | }; |
34 | |
35 | struct nfc_sock_list { |
36 | struct hlist_head head; |
37 | rwlock_t lock; |
38 | }; |
39 | |
40 | #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk) |
41 | #define to_rawsock_sk(_tx_work) \ |
42 | ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work)) |
43 | |
44 | struct nfc_llcp_sdp_tlv; |
45 | |
46 | void nfc_llcp_mac_is_down(struct nfc_dev *dev); |
47 | void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx, |
48 | u8 comm_mode, u8 rf_mode); |
49 | int nfc_llcp_register_device(struct nfc_dev *dev); |
50 | void nfc_llcp_unregister_device(struct nfc_dev *dev); |
51 | int nfc_llcp_set_remote_gb(struct nfc_dev *dev, const u8 *gb, u8 gb_len); |
52 | u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); |
53 | int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb); |
54 | struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev); |
55 | int nfc_llcp_local_put(struct nfc_llcp_local *local); |
56 | int __init nfc_llcp_init(void); |
57 | void nfc_llcp_exit(void); |
58 | void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp); |
59 | void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head); |
60 | |
61 | int __init rawsock_init(void); |
62 | void rawsock_exit(void); |
63 | |
64 | int __init af_nfc_init(void); |
65 | void af_nfc_exit(void); |
66 | int nfc_proto_register(const struct nfc_protocol *nfc_proto); |
67 | void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); |
68 | |
69 | extern int nfc_devlist_generation; |
70 | extern struct mutex nfc_devlist_mutex; |
71 | |
72 | int __init nfc_genl_init(void); |
73 | void nfc_genl_exit(void); |
74 | |
75 | void nfc_genl_data_init(struct nfc_genl_data *genl_data); |
76 | void nfc_genl_data_exit(struct nfc_genl_data *genl_data); |
77 | |
78 | int nfc_genl_targets_found(struct nfc_dev *dev); |
79 | int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx); |
80 | |
81 | int nfc_genl_device_added(struct nfc_dev *dev); |
82 | int nfc_genl_device_removed(struct nfc_dev *dev); |
83 | |
84 | int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, |
85 | u8 comm_mode, u8 rf_mode); |
86 | int nfc_genl_dep_link_down_event(struct nfc_dev *dev); |
87 | |
88 | int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); |
89 | int nfc_genl_tm_deactivated(struct nfc_dev *dev); |
90 | |
91 | int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list); |
92 | |
93 | int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type); |
94 | int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx); |
95 | int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx, |
96 | struct nfc_evt_transaction *evt_transaction); |
97 | int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx); |
98 | |
99 | struct nfc_dev *nfc_get_device(unsigned int idx); |
100 | |
101 | static inline void nfc_put_device(struct nfc_dev *dev) |
102 | { |
103 | put_device(dev: &dev->dev); |
104 | } |
105 | |
106 | static inline void nfc_device_iter_init(struct class_dev_iter *iter) |
107 | { |
108 | class_dev_iter_init(iter, class: &nfc_class, NULL, NULL); |
109 | } |
110 | |
111 | static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) |
112 | { |
113 | struct device *d = class_dev_iter_next(iter); |
114 | if (!d) |
115 | return NULL; |
116 | |
117 | return to_nfc_dev(d); |
118 | } |
119 | |
120 | static inline void nfc_device_iter_exit(struct class_dev_iter *iter) |
121 | { |
122 | class_dev_iter_exit(iter); |
123 | } |
124 | |
125 | int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name); |
126 | int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name, |
127 | u32 result); |
128 | |
129 | int nfc_dev_up(struct nfc_dev *dev); |
130 | |
131 | int nfc_dev_down(struct nfc_dev *dev); |
132 | |
133 | int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); |
134 | |
135 | int nfc_stop_poll(struct nfc_dev *dev); |
136 | |
137 | int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode); |
138 | |
139 | int nfc_dep_link_down(struct nfc_dev *dev); |
140 | |
141 | int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); |
142 | |
143 | int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode); |
144 | |
145 | int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, |
146 | data_exchange_cb_t cb, void *cb_context); |
147 | |
148 | int nfc_enable_se(struct nfc_dev *dev, u32 se_idx); |
149 | int nfc_disable_se(struct nfc_dev *dev, u32 se_idx); |
150 | |
151 | #endif /* __LOCAL_NFC_H */ |
152 | |