LXR linux/net/nfc/nfc.h

   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
  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, size_t *general_bytes_len);
  53int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
  54struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
  55int __init nfc_llcp_init(void);
  56void nfc_llcp_exit(void);
  57void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
  58void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
  59
  60int __init rawsock_init(void);
  61void rawsock_exit(void);
  62
  63int __init af_nfc_init(void);
  64void af_nfc_exit(void);
  65int nfc_proto_register(const struct nfc_protocol *nfc_proto);
  66void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
  67
  68extern int nfc_devlist_generation;
  69extern struct mutex nfc_devlist_mutex;
  70
  71int __init nfc_genl_init(void);
  72void nfc_genl_exit(void);
  73
  74void nfc_genl_data_init(struct nfc_genl_data *genl_data);
  75void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
  76
  77int nfc_genl_targets_found(struct nfc_dev *dev);
  78int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
  79
  80int nfc_genl_device_added(struct nfc_dev *dev);
  81int nfc_genl_device_removed(struct nfc_dev *dev);
  82
  83int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
  84                               u8 comm_mode, u8 rf_mode);
  85int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
  86
  87int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
  88int nfc_genl_tm_deactivated(struct nfc_dev *dev);
  89
  90int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
  91
  92int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
  93int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
  94int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
  95                            struct nfc_evt_transaction *evt_transaction);
  96int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx);
  97
  98struct nfc_dev *nfc_get_device(unsigned int idx);
  99
 100static inline void nfc_put_device(struct nfc_dev *dev)
 101{
 102        put_device(&dev->dev);
 103}
 104
 105static inline void nfc_device_iter_init(struct class_dev_iter *iter)
 106{
 107        class_dev_iter_init(iter, &nfc_class, NULL, NULL);
 108}
 109
 110static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
 111{
 112        struct device *d = class_dev_iter_next(iter);
 113        if (!d)
 114                return NULL;
 115
 116        return to_nfc_dev(d);
 117}
 118
 119static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
 120{
 121        class_dev_iter_exit(iter);
 122}
 123
 124int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
 125int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 126                              u32 result);
 127
 128int nfc_dev_up(struct nfc_dev *dev);
 129
 130int nfc_dev_down(struct nfc_dev *dev);
 131
 132int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
 133
 134int nfc_stop_poll(struct nfc_dev *dev);
 135
 136int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
 137
 138int nfc_dep_link_down(struct nfc_dev *dev);
 139
 140int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
 141
 142int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
 143
 144int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
 145                      data_exchange_cb_t cb, void *cb_context);
 146
 147int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
 148int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
 149
 150#endif /* __LOCAL_NFC_H */
 151