text: /*
   * Copyright (C) 2011  Intel Corporation. All rights reserved.
   *
   * 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 __NET_HCI_H
  #define __NET_HCI_H
  
  #include <linux/skbuff.h>
  
  #include <net/nfc/nfc.h>
  
  struct nfc_hci_dev;
  
  struct nfc_hci_ops {
  	int (*open) (struct nfc_hci_dev *hdev);
  	void (*close) (struct nfc_hci_dev *hdev);
  	int (*hci_ready) (struct nfc_hci_dev *hdev);
  	int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
  	int (*start_poll) (struct nfc_hci_dev *hdev, u32 protocols);
  	int (*target_from_gate) (struct nfc_hci_dev *hdev, u8 gate,
  				 struct nfc_target *target);
  	int (*complete_target_discovered) (struct nfc_hci_dev *hdev, u8 gate,
  					   struct nfc_target *target);
  	int (*data_exchange) (struct nfc_hci_dev *hdev,
  			      struct nfc_target *target,
  			      struct sk_buff *skb, struct sk_buff **res_skb);
  	int (*check_presence)(struct nfc_hci_dev *hdev,
  			      struct nfc_target *target);
  };
  
  #define NFC_HCI_MAX_CUSTOM_GATES	15
  struct nfc_hci_init_data {
  	u8 gate_count;
  	u8 gates[NFC_HCI_MAX_CUSTOM_GATES];
  	char session_id[9];
  };
  
  typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
  
  #define NFC_HCI_MAX_GATES		256
  
  struct nfc_hci_dev {
  	struct nfc_dev *ndev;
  
  	u32 max_data_link_payload;
  
  	struct mutex msg_tx_mutex;
  
  	struct list_head msg_tx_queue;
  
  	struct workqueue_struct *msg_tx_wq;
  	struct work_struct msg_tx_work;
  
  	struct timer_list cmd_timer;
  	struct hci_msg *cmd_pending_msg;
  
  	struct sk_buff_head rx_hcp_frags;
  
  	struct workqueue_struct *msg_rx_wq;
  	struct work_struct msg_rx_work;
  
  	struct sk_buff_head msg_rx_queue;
  
  	struct nfc_hci_ops *ops;
  
  	struct nfc_hci_init_data init_data;
  
  	void *clientdata;
  
  	u8 gate2pipe[NFC_HCI_MAX_GATES];
  
  	u8 sw_romlib;
  	u8 sw_patch;
  	u8 sw_flashlib_major;
  	u8 sw_flashlib_minor;
  
  	u8 hw_derivative;
  	u8 hw_version;
  	u8 hw_mpw;
  	u8 hw_software;
  	u8 hw_bsid;
  };
  
  /* hci device allocation */
  struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
  					    struct nfc_hci_init_data *init_data,
  					    u32 protocols,
  					    int tx_headroom,
  					    int tx_tailroom,
  					    int max_link_payload);
  void nfc_hci_free_device(struct nfc_hci_dev *hdev);
  
  int nfc_hci_register_device(struct nfc_hci_dev *hdev);
  void nfc_hci_unregister_device(struct nfc_hci_dev *hdev);
  
  void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata);
  void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev);
  
  /* Host IDs */
  #define NFC_HCI_HOST_CONTROLLER_ID	0x00
  #define NFC_HCI_TERMINAL_HOST_ID	0x01
  #define NFC_HCI_UICC_HOST_ID		0x02
  
  /* Host Controller Gates and registry indexes */
  #define NFC_HCI_ADMIN_GATE 0x00
  #define NFC_HCI_ADMIN_SESSION_IDENTITY	0x01
  #define NFC_HCI_ADMIN_MAX_PIPE		0x02
  #define NFC_HCI_ADMIN_WHITELIST		0x03
  #define NFC_HCI_ADMIN_HOST_LIST		0x04
  
  #define NFC_HCI_LOOPBACK_GATE		0x04
  
  #define NFC_HCI_ID_MGMT_GATE		0x05
  #define NFC_HCI_ID_MGMT_VERSION_SW	0x01
  #define NFC_HCI_ID_MGMT_VERSION_HW	0x03
  #define NFC_HCI_ID_MGMT_VENDOR_NAME	0x04
  #define NFC_HCI_ID_MGMT_MODEL_ID	0x05
  #define NFC_HCI_ID_MGMT_HCI_VERSION	0x02
  #define NFC_HCI_ID_MGMT_GATES_LIST	0x06
  
  #define NFC_HCI_LINK_MGMT_GATE		0x06
  #define NFC_HCI_LINK_MGMT_REC_ERROR	0x01
  
  #define NFC_HCI_RF_READER_B_GATE			0x11
  #define NFC_HCI_RF_READER_B_PUPI			0x03
  #define NFC_HCI_RF_READER_B_APPLICATION_DATA		0x04
  #define NFC_HCI_RF_READER_B_AFI				0x02
  #define NFC_HCI_RF_READER_B_HIGHER_LAYER_RESPONSE	0x01
  #define NFC_HCI_RF_READER_B_HIGHER_LAYER_DATA		0x05
  
  #define NFC_HCI_RF_READER_A_GATE		0x13
  #define NFC_HCI_RF_READER_A_UID			0x02
  #define NFC_HCI_RF_READER_A_ATQA		0x04
  #define NFC_HCI_RF_READER_A_APPLICATION_DATA	0x05
  #define NFC_HCI_RF_READER_A_SAK			0x03
  #define NFC_HCI_RF_READER_A_FWI_SFGT		0x06
  #define NFC_HCI_RF_READER_A_DATARATE_MAX	0x01
  
  #define NFC_HCI_TYPE_A_SEL_PROT(x)		(((x) & 0x60) >> 5)
  #define NFC_HCI_TYPE_A_SEL_PROT_MIFARE		0
  #define NFC_HCI_TYPE_A_SEL_PROT_ISO14443	1
  #define NFC_HCI_TYPE_A_SEL_PROT_DEP		2
  #define NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP	3
  
  /* Generic events */
  #define NFC_HCI_EVT_HCI_END_OF_OPERATION	0x01
  #define NFC_HCI_EVT_POST_DATA			0x02
  #define NFC_HCI_EVT_HOT_PLUG			0x03
  
  /* Reader RF gates events */
  #define NFC_HCI_EVT_READER_REQUESTED	0x10
  #define NFC_HCI_EVT_END_OPERATION	0x11
  
  /* Reader Application gate events */
  #define NFC_HCI_EVT_TARGET_DISCOVERED	0x10
  
  /* receiving messages from lower layer */
  void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result,
  			   struct sk_buff *skb);
  void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
  			  struct sk_buff *skb);
  void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
  			    struct sk_buff *skb);
  void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb);
  
  /* connecting to gates and sending hci instructions */
  int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate);
  int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate);
  int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev);
  int nfc_hci_get_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
  		      struct sk_buff **skb);
  int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
  		      const u8 *param, size_t param_len);
  int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
  		     const u8 *param, size_t param_len, struct sk_buff **skb);
  int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
  			  const u8 *param, size_t param_len);
  int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
  		       const u8 *param, size_t param_len);
  
  #endif /* __NET_HCI_H */
  