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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 <[email protected]>
7 * Aloisio Almeida Jr <[email protected]>
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
19struct 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
27struct 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
35struct 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
44struct nfc_llcp_sdp_tlv;
45
46void nfc_llcp_mac_is_down(struct nfc_dev *dev);
47void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
48 u8 comm_mode, u8 rf_mode);
49int nfc_llcp_register_device(struct nfc_dev *dev);
50void nfc_llcp_unregister_device(struct nfc_dev *dev);
51int nfc_llcp_set_remote_gb(struct nfc_dev *dev, const u8 *gb, u8 gb_len);
52u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *out_gb, size_t gb_max_len,
53 size_t *general_bytes_len);
54int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
55struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
56int nfc_llcp_local_put(struct nfc_llcp_local *local);
57int __init nfc_llcp_init(void);
58void nfc_llcp_exit(void);
59void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
60void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
61
62int __init rawsock_init(void);
63void rawsock_exit(void);
64
65int __init af_nfc_init(void);
66void af_nfc_exit(void);
67int nfc_proto_register(const struct nfc_protocol *nfc_proto);
68void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
69
70extern int nfc_devlist_generation;
71extern struct mutex nfc_devlist_mutex;
72
73int __init nfc_genl_init(void);
74void nfc_genl_exit(void);
75
76void nfc_genl_data_init(struct nfc_genl_data *genl_data);
77void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
78
79int nfc_genl_targets_found(struct nfc_dev *dev);
80int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
81
82int nfc_genl_device_added(struct nfc_dev *dev);
83int nfc_genl_device_removed(struct nfc_dev *dev);
84
85int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
86 u8 comm_mode, u8 rf_mode);
87int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
88
89int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
90int nfc_genl_tm_deactivated(struct nfc_dev *dev);
91
92int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
93
94int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
95int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
96int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
97 struct nfc_evt_transaction *evt_transaction);
98int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx);
99
100struct nfc_dev *nfc_get_device(unsigned int idx);
101
102static inline void nfc_put_device(struct nfc_dev *dev)
103{
104 put_device(&dev->dev);
105}
106
107static inline void nfc_device_iter_init(struct class_dev_iter *iter)
108{
109 class_dev_iter_init(iter, &nfc_class, NULL, NULL);
110}
111
112static 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
121static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
122{
123 class_dev_iter_exit(iter);
124}
125
126int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
127int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
128 u32 result);
129
130int nfc_dev_up(struct nfc_dev *dev);
131
132int nfc_dev_down(struct nfc_dev *dev);
133
134int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
135
136int nfc_stop_poll(struct nfc_dev *dev);
137
138int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
139
140int nfc_dep_link_down(struct nfc_dev *dev);
141
142int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
143
144int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
145
146int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
147 data_exchange_cb_t cb, void *cb_context);
148
149int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
150int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
151
152#endif /* __LOCAL_NFC_H */