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03bed29e05
linux_dsm_epyc7002/include/net/nfc/hci.h
Eric Lapuyade 03bed29e05 NFC: HCI drivers don't have to keep track of polling state 
The NFC core code already does that for them.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-15 17:31:22 -04:00

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/*
* 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 */
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