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
  31 struct 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
  39 struct 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
  47 struct 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
  56 struct nfc_llcp_sdp_tlv;
  57
  58 void nfc_llcp_mac_is_down(struct nfc_dev *dev);
  59 void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  60                         u8 comm_mode, u8 rf_mode);
  61 int nfc_llcp_register_device(struct nfc_dev *dev);
  62 void nfc_llcp_unregister_device(struct nfc_dev *dev);
  63 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
  64 u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
  65 int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
  66 struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
  67 int __init nfc_llcp_init(void);
  68 void nfc_llcp_exit(void);
  69 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
  70 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
  71
  72 int __init rawsock_init(void);
  73 void rawsock_exit(void);
  74
  75 int __init af_nfc_init(void);
  76 void af_nfc_exit(void);
  77 int nfc_proto_register(const struct nfc_protocol *nfc_proto);
  78 void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
  79
  80 extern int nfc_devlist_generation;
  81 extern struct mutex nfc_devlist_mutex;
  82
  83 int __init nfc_genl_init(void);
  84 void nfc_genl_exit(void);
  85
  86 void nfc_genl_data_init(struct nfc_genl_data *genl_data);
  87 void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
  88
  89 int nfc_genl_targets_found(struct nfc_dev *dev);
  90 int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
  91
  92 int nfc_genl_device_added(struct nfc_dev *dev);
  93 int nfc_genl_device_removed(struct nfc_dev *dev);
  94
  95 int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
  96                                u8 comm_mode, u8 rf_mode);
  97 int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
  98
  99 int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
 100 int nfc_genl_tm_deactivated(struct nfc_dev *dev);
 101
 102 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
 103
 104 int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
 105 int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
 106 int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
 107                             struct nfc_evt_transaction *evt_transaction);
 108
 109 struct nfc_dev *nfc_get_device(unsigned int idx);
 110
 111 static inline void nfc_put_device(struct nfc_dev *dev)
 112 {
 113         put_device(&dev->dev);
 114 }
 115
 116 static inline void nfc_device_iter_init(struct class_dev_iter *iter)
 117 {
 118         class_dev_iter_init(iter, &nfc_class, NULL, NULL);
 119 }
 120
 121 static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
 122 {
 123         struct device *d = class_dev_iter_next(iter);
 124         if (!d)
 125                 return NULL;
 126
 127         return to_nfc_dev(d);
 128 }
 129
 130 static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
 131 {
 132         class_dev_iter_exit(iter);
 133 }
 134
 135 int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
 136 int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 137                               u32 result);
 138
 139 int nfc_dev_up(struct nfc_dev *dev);
 140
 141 int nfc_dev_down(struct nfc_dev *dev);
 142
 143 int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
 144
 145 int nfc_stop_poll(struct nfc_dev *dev);
 146
 147 int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
 148
 149 int nfc_dep_link_down(struct nfc_dev *dev);
 150
 151 int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
 152
 153 int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
 154
 155 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
 156                       data_exchange_cb_t cb, void *cb_context);
 157
 158 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
 159 int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
 160
 161 #endif /* __LOCAL_NFC_H */