LXR linux/net/nfc/nfc.h

   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
  31struct 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
  39struct 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
  47struct 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
  56struct nfc_llcp_sdp_tlv;
  57
  58void nfc_llcp_mac_is_down(struct nfc_dev *dev);
  59void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  60                        u8 comm_mode, u8 rf_mode);
  61int nfc_llcp_register_device(struct nfc_dev *dev);
  62void nfc_llcp_unregister_device(struct nfc_dev *dev);
  63int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
  64u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
  65int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
  66struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
  67int __init nfc_llcp_init(void);
  68void nfc_llcp_exit(void);
  69void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
  70void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
  71
  72int __init rawsock_init(void);
  73void rawsock_exit(void);
  74
  75int __init af_nfc_init(void);
  76void af_nfc_exit(void);
  77int nfc_proto_register(const struct nfc_protocol *nfc_proto);
  78void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
  79
  80extern int nfc_devlist_generation;
  81extern struct mutex nfc_devlist_mutex;
  82
  83int __init nfc_genl_init(void);
  84void nfc_genl_exit(void);
  85
  86void nfc_genl_data_init(struct nfc_genl_data *genl_data);
  87void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
  88
  89int nfc_genl_targets_found(struct nfc_dev *dev);
  90int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
  91
  92int nfc_genl_device_added(struct nfc_dev *dev);
  93int nfc_genl_device_removed(struct nfc_dev *dev);
  94
  95int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
  96                               u8 comm_mode, u8 rf_mode);
  97int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
  98
  99int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
 100int nfc_genl_tm_deactivated(struct nfc_dev *dev);
 101
 102int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
 103
 104int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
 105int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
 106int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
 107                            struct nfc_evt_transaction *evt_transaction);
 108int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx);
 109
 110struct nfc_dev *nfc_get_device(unsigned int idx);
 111
 112static inline void nfc_put_device(struct nfc_dev *dev)
 113{
 114        put_device(&dev->dev);
 115}
 116
 117static inline void nfc_device_iter_init(struct class_dev_iter *iter)
 118{
 119        class_dev_iter_init(iter, &nfc_class, NULL, NULL);
 120}
 121
 122static 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
 131static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
 132{
 133        class_dev_iter_exit(iter);
 134}
 135
 136int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
 137int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 138                              u32 result);
 139
 140int nfc_dev_up(struct nfc_dev *dev);
 141
 142int nfc_dev_down(struct nfc_dev *dev);
 143
 144int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
 145
 146int nfc_stop_poll(struct nfc_dev *dev);
 147
 148int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
 149
 150int nfc_dep_link_down(struct nfc_dev *dev);
 151
 152int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
 153
 154int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
 155
 156int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
 157                      data_exchange_cb_t cb, void *cb_context);
 158
 159int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
 160int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
 161
 162#endif /* __LOCAL_NFC_H */
 163