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r: 300872
b: refs/heads/master
c: 8b8d2e0
h: refs/heads/master
v: v3
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Eric Lapuyade authored and John W. Linville committed Apr 12, 2012
1 parent f310b8f commit 54bc95e
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: e1da0efa2ee71df957b280bcfa41f82ce6986a1d
refs/heads/master: 8b8d2e08bf0d50193931afd27482a59376b66b2b
198 changes: 198 additions & 0 deletions trunk/include/net/nfc/hci.h
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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);
};

#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];

bool poll_started;
struct nfc_target *targets;
int target_count;

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 */
1 change: 1 addition & 0 deletions trunk/include/net/nfc/nfc.h
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Expand Up @@ -78,6 +78,7 @@ struct nfc_target {
u8 sensb_res[NFC_SENSB_RES_MAXSIZE];
u8 sensf_res_len;
u8 sensf_res[NFC_SENSF_RES_MAXSIZE];
u8 hci_reader_gate;
};

struct nfc_genl_data {
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1 change: 1 addition & 0 deletions trunk/net/nfc/Kconfig
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Expand Up @@ -14,6 +14,7 @@ menuconfig NFC
be called nfc.

source "net/nfc/nci/Kconfig"
source "net/nfc/hci/Kconfig"
source "net/nfc/llcp/Kconfig"

source "drivers/nfc/Kconfig"
1 change: 1 addition & 0 deletions trunk/net/nfc/Makefile
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Expand Up @@ -4,6 +4,7 @@

obj-$(CONFIG_NFC) += nfc.o
obj-$(CONFIG_NFC_NCI) += nci/
obj-$(CONFIG_NFC_HCI) += hci/

nfc-objs := core.o netlink.o af_nfc.o rawsock.o
nfc-$(CONFIG_NFC_LLCP) += llcp/llcp.o llcp/commands.o llcp/sock.o
8 changes: 8 additions & 0 deletions trunk/net/nfc/hci/Kconfig
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config NFC_HCI
depends on NFC
tristate "NFC HCI implementation"
default n
help
Say Y here if you want to build support for a kernel NFC HCI
implementation. This is mostly needed for devices that only process
HCI frames, like for example the NXP pn544.
7 changes: 7 additions & 0 deletions trunk/net/nfc/hci/Makefile
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#
# Makefile for the Linux NFC HCI layer.
#

obj-$(CONFIG_NFC_HCI) += hci.o

hci-y := core.o hcp.o command.o
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