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, 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
  30struct 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
  38struct 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#ifdef CONFIG_NFC_LLCP
  50
  51void nfc_llcp_mac_is_down(struct nfc_dev *dev);
  52void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  53                        u8 comm_mode, u8 rf_mode);
  54int nfc_llcp_register_device(struct nfc_dev *dev);
  55void nfc_llcp_unregister_device(struct nfc_dev *dev);
  56int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
  57u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
  58int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
  59int __init nfc_llcp_init(void);
  60void nfc_llcp_exit(void);
  61
  62#else
  63
  64static inline void nfc_llcp_mac_is_down(struct nfc_dev *dev)
  65{
  66}
  67
  68static inline void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  69                                      u8 comm_mode, u8 rf_mode)
  70{
  71}
  72
  73static inline int nfc_llcp_register_device(struct nfc_dev *dev)
  74{
  75        return 0;
  76}
  77
  78static inline void nfc_llcp_unregister_device(struct nfc_dev *dev)
  79{
  80}
  81
  82static inline int nfc_llcp_set_remote_gb(struct nfc_dev *dev,
  83                                         u8 *gb, u8 gb_len)
  84{
  85        return 0;
  86}
  87
  88static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len)
  89{
  90        *gb_len = 0;
  91        return NULL;
  92}
  93
  94static inline int nfc_llcp_data_received(struct nfc_dev *dev,
  95                                         struct sk_buff *skb)
  96{
  97        return 0;
  98}
  99
 100static inline int nfc_llcp_init(void)
 101{
 102        return 0;
 103}
 104
 105static inline void nfc_llcp_exit(void)
 106{
 107}
 108
 109#endif
 110
 111int __init rawsock_init(void);
 112void rawsock_exit(void);
 113
 114int __init af_nfc_init(void);
 115void af_nfc_exit(void);
 116int nfc_proto_register(const struct nfc_protocol *nfc_proto);
 117void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
 118
 119extern int nfc_devlist_generation;
 120extern struct mutex nfc_devlist_mutex;
 121
 122int __init nfc_genl_init(void);
 123void nfc_genl_exit(void);
 124
 125void nfc_genl_data_init(struct nfc_genl_data *genl_data);
 126void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
 127
 128int nfc_genl_targets_found(struct nfc_dev *dev);
 129int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
 130
 131int nfc_genl_device_added(struct nfc_dev *dev);
 132int nfc_genl_device_removed(struct nfc_dev *dev);
 133
 134int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
 135                               u8 comm_mode, u8 rf_mode);
 136int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
 137
 138int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
 139int nfc_genl_tm_deactivated(struct nfc_dev *dev);
 140
 141struct nfc_dev *nfc_get_device(unsigned int idx);
 142
 143static inline void nfc_put_device(struct nfc_dev *dev)
 144{
 145        put_device(&dev->dev);
 146}
 147
 148static inline void nfc_device_iter_init(struct class_dev_iter *iter)
 149{
 150        class_dev_iter_init(iter, &nfc_class, NULL, NULL);
 151}
 152
 153static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
 154{
 155        struct device *d = class_dev_iter_next(iter);
 156        if (!d)
 157                return NULL;
 158
 159        return to_nfc_dev(d);
 160}
 161
 162static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
 163{
 164        class_dev_iter_exit(iter);
 165}
 166
 167int nfc_dev_up(struct nfc_dev *dev);
 168
 169int nfc_dev_down(struct nfc_dev *dev);
 170
 171int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
 172
 173int nfc_stop_poll(struct nfc_dev *dev);
 174
 175int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
 176
 177int nfc_dep_link_down(struct nfc_dev *dev);
 178
 179int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
 180
 181int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
 182
 183int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
 184                      data_exchange_cb_t cb, void *cb_context);
 185
 186#endif /* __LOCAL_NFC_H */
 187