/*
   * 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 __LINUX_NFC_H
  #define __LINUX_NFC_H

  #include <linux/types.h>
  #include <linux/socket.h>

  #define NFC_GENL_NAME "nfc"
  #define NFC_GENL_VERSION 1
  
  #define NFC_GENL_MCAST_EVENT_NAME "events"
  
  /**
   * enum nfc_commands - supported nfc commands
   *
   * @NFC_CMD_UNSPEC: unspecified command
   *
   * @NFC_CMD_GET_DEVICE: request information about a device (requires
   *	%NFC_ATTR_DEVICE_INDEX) or dump request to get a list of all nfc devices

   * @NFC_CMD_DEV_UP: turn on the nfc device
   *	(requires %NFC_ATTR_DEVICE_INDEX)
   * @NFC_CMD_DEV_DOWN: turn off the nfc device
   *	(requires %NFC_ATTR_DEVICE_INDEX)

   * @NFC_CMD_START_POLL: start polling for targets using the given protocols
   *	(requires %NFC_ATTR_DEVICE_INDEX and %NFC_ATTR_PROTOCOLS)
   * @NFC_CMD_STOP_POLL: stop polling for targets (requires
   *	%NFC_ATTR_DEVICE_INDEX)
   * @NFC_CMD_GET_TARGET: dump all targets found by the previous poll (requires
   *	%NFC_ATTR_DEVICE_INDEX)
   * @NFC_EVENT_TARGETS_FOUND: event emitted when a new target is found
   *	(it sends %NFC_ATTR_DEVICE_INDEX)
   * @NFC_EVENT_DEVICE_ADDED: event emitted when a new device is registred
   *	(it sends %NFC_ATTR_DEVICE_NAME, %NFC_ATTR_DEVICE_INDEX and
   *	%NFC_ATTR_PROTOCOLS)
   * @NFC_EVENT_DEVICE_REMOVED: event emitted when a device is removed
   *	(it sends %NFC_ATTR_DEVICE_INDEX)
   */
  enum nfc_commands {
  	NFC_CMD_UNSPEC,
  	NFC_CMD_GET_DEVICE,

  	NFC_CMD_DEV_UP,
  	NFC_CMD_DEV_DOWN,

  	NFC_CMD_DEP_LINK_UP,
  	NFC_CMD_DEP_LINK_DOWN,

  	NFC_CMD_START_POLL,
  	NFC_CMD_STOP_POLL,
  	NFC_CMD_GET_TARGET,
  	NFC_EVENT_TARGETS_FOUND,
  	NFC_EVENT_DEVICE_ADDED,
  	NFC_EVENT_DEVICE_REMOVED,
  /* private: internal use only */
  	__NFC_CMD_AFTER_LAST
  };
  #define NFC_CMD_MAX (__NFC_CMD_AFTER_LAST - 1)
  
  /**
   * enum nfc_attrs - supported nfc attributes
   *
   * @NFC_ATTR_UNSPEC: unspecified attribute
   *
   * @NFC_ATTR_DEVICE_INDEX: index of nfc device
   * @NFC_ATTR_DEVICE_NAME: device name, max 8 chars
   * @NFC_ATTR_PROTOCOLS: nfc protocols - bitwise or-ed combination from
   *	NFC_PROTO_*_MASK constants
   * @NFC_ATTR_TARGET_INDEX: index of the nfc target
   * @NFC_ATTR_TARGET_SENS_RES: NFC-A targets extra information such as NFCID
   * @NFC_ATTR_TARGET_SEL_RES: NFC-A targets extra information (useful if the
   *	target is not NFC-Forum compliant)

   * @NFC_ATTR_TARGET_NFCID1: NFC-A targets identifier, max 10 bytes

   * @NFC_ATTR_COMM_MODE: Passive or active mode
   * @NFC_ATTR_RF_MODE: Initiator or target

   */
  enum nfc_attrs {
  	NFC_ATTR_UNSPEC,
  	NFC_ATTR_DEVICE_INDEX,
  	NFC_ATTR_DEVICE_NAME,
  	NFC_ATTR_PROTOCOLS,
  	NFC_ATTR_TARGET_INDEX,
  	NFC_ATTR_TARGET_SENS_RES,
  	NFC_ATTR_TARGET_SEL_RES,

  	NFC_ATTR_TARGET_NFCID1,

  	NFC_ATTR_COMM_MODE,
  	NFC_ATTR_RF_MODE,

  /* private: internal use only */
  	__NFC_ATTR_AFTER_LAST
  };
  #define NFC_ATTR_MAX (__NFC_ATTR_AFTER_LAST - 1)
  
  #define NFC_DEVICE_NAME_MAXSIZE 8
  
  /* NFC protocols */
  #define NFC_PROTO_JEWEL		1
  #define NFC_PROTO_MIFARE	2
  #define NFC_PROTO_FELICA	3
  #define NFC_PROTO_ISO14443	4
  #define NFC_PROTO_NFC_DEP	5
  
  #define NFC_PROTO_MAX		6

  /* NFC communication modes */
  #define NFC_COMM_ACTIVE  0
  #define NFC_COMM_PASSIVE 1
  
  /* NFC RF modes */
  #define NFC_RF_INITIATOR 0
  #define NFC_RF_TARGET    1

  /* NFC protocols masks used in bitsets */
  #define NFC_PROTO_JEWEL_MASK	(1 << NFC_PROTO_JEWEL)
  #define NFC_PROTO_MIFARE_MASK	(1 << NFC_PROTO_MIFARE)
  #define NFC_PROTO_FELICA_MASK	(1 << NFC_PROTO_FELICA)
  #define NFC_PROTO_ISO14443_MASK	(1 << NFC_PROTO_ISO14443)
  #define NFC_PROTO_NFC_DEP_MASK	(1 << NFC_PROTO_NFC_DEP)

  struct sockaddr_nfc {
  	sa_family_t sa_family;
  	__u32 dev_idx;
  	__u32 target_idx;
  	__u32 nfc_protocol;
  };

  #define NFC_LLCP_MAX_SERVICE_NAME 63
  struct sockaddr_nfc_llcp {
  	sa_family_t sa_family;
  	__u32 dev_idx;
  	__u32 target_idx;
  	__u32 nfc_protocol;
  	__u8 dsap; /* Destination SAP, if known */
  	__u8 ssap; /* Source SAP to be bound to */
  	char service_name[NFC_LLCP_MAX_SERVICE_NAME]; /* Service name URI */;
  	size_t service_name_len;
  };

  /* NFC socket protocols */

  #define NFC_SOCKPROTO_RAW	0

  #define NFC_SOCKPROTO_LLCP	1
  #define NFC_SOCKPROTO_MAX	2

  #define NFC_HEADER_SIZE 1

  #endif /*__LINUX_NFC_H */