/*
   * Copyright (C) 2011 Instituto Nokia de Tecnologia
   *
   * Authors:
   *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
   *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the
   * Free Software Foundation, Inc.,
   * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   */
  
  #ifndef __LOCAL_NFC_H
  #define __LOCAL_NFC_H

  #include <net/nfc/nfc.h>

  #include <net/sock.h>

  struct nfc_protocol {
  	int id;
  	struct proto *proto;
  	struct module *owner;
  	int (*create)(struct net *net, struct socket *sock,
  			const struct nfc_protocol *nfc_proto);
  };

  struct nfc_rawsock {
  	struct sock sk;
  	struct nfc_dev *dev;
  	u32 target_idx;
  	struct work_struct tx_work;
  	bool tx_work_scheduled;
  };
  #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk)
  #define to_rawsock_sk(_tx_work) \
  	((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work))

  #ifdef CONFIG_NFC_LLCP
  
  void nfc_llcp_mac_is_down(struct nfc_dev *dev);
  void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  			u8 comm_mode, u8 rf_mode);
  int nfc_llcp_register_device(struct nfc_dev *dev);
  void nfc_llcp_unregister_device(struct nfc_dev *dev);
  int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
  u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *general_bytes_len);
  int __init nfc_llcp_init(void);
  void nfc_llcp_exit(void);
  
  #else

  static inline void nfc_llcp_mac_is_down(struct nfc_dev *dev)

  {
  }

  static inline void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,

  			u8 comm_mode, u8 rf_mode)
  {
  }
  
  static inline int nfc_llcp_register_device(struct nfc_dev *dev)
  {
  	return 0;
  }
  
  static inline void nfc_llcp_unregister_device(struct nfc_dev *dev)
  {
  }
  
  static inline int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len)
  {
  	return 0;
  }
  
  static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, u8 *gb_len)
  {
  	*gb_len = 0;
  	return NULL;
  }
  
  static inline int nfc_llcp_init(void)
  {
  	return 0;
  }
  
  static inline void nfc_llcp_exit(void)
  {
  }
  
  #endif

  int __init rawsock_init(void);
  void rawsock_exit(void);

  int __init af_nfc_init(void);
  void af_nfc_exit(void);
  int nfc_proto_register(const struct nfc_protocol *nfc_proto);
  void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);

  extern int nfc_devlist_generation;
  extern struct mutex nfc_devlist_mutex;

  int __init nfc_genl_init(void);
  void nfc_genl_exit(void);
  
  void nfc_genl_data_init(struct nfc_genl_data *genl_data);
  void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
  
  int nfc_genl_targets_found(struct nfc_dev *dev);
  
  int nfc_genl_device_added(struct nfc_dev *dev);
  int nfc_genl_device_removed(struct nfc_dev *dev);

  int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
  			       u8 comm_mode, u8 rf_mode);
  int nfc_genl_dep_link_down_event(struct nfc_dev *dev);

  struct nfc_dev *nfc_get_device(unsigned idx);
  
  static inline void nfc_put_device(struct nfc_dev *dev)
  {
  	put_device(&dev->dev);
  }
  
  static inline void nfc_device_iter_init(struct class_dev_iter *iter)
  {
  	class_dev_iter_init(iter, &nfc_class, NULL, NULL);
  }
  
  static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
  {
  	struct device *d = class_dev_iter_next(iter);
  	if (!d)
  		return NULL;
  
  	return to_nfc_dev(d);
  }
  
  static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
  {
  	class_dev_iter_exit(iter);
  }

  int nfc_dev_up(struct nfc_dev *dev);
  
  int nfc_dev_down(struct nfc_dev *dev);

  int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
  
  int nfc_stop_poll(struct nfc_dev *dev);

  int nfc_dep_link_up(struct nfc_dev *dev, int target_idx,
  				u8 comm_mode, u8 rf_mode);
  
  int nfc_dep_link_down(struct nfc_dev *dev);

  int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
  
  int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
  
  int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
  					struct sk_buff *skb,
  					data_exchange_cb_t cb,
  					void *cb_context);
  
  #endif /* __LOCAL_NFC_H */