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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
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261
include/net/nfc/digital.h Normal file
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/*
* NFC Digital Protocol stack
* Copyright (c) 2013, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
*/
#ifndef __NFC_DIGITAL_H
#define __NFC_DIGITAL_H
#include <linux/skbuff.h>
#include <net/nfc/nfc.h>
/**
* Configuration types for in_configure_hw and tg_configure_hw.
*/
enum {
NFC_DIGITAL_CONFIG_RF_TECH = 0,
NFC_DIGITAL_CONFIG_FRAMING,
};
/**
* RF technology values passed as param argument to in_configure_hw and
* tg_configure_hw for NFC_DIGITAL_CONFIG_RF_TECH configuration type.
*/
enum {
NFC_DIGITAL_RF_TECH_106A = 0,
NFC_DIGITAL_RF_TECH_212F,
NFC_DIGITAL_RF_TECH_424F,
NFC_DIGITAL_RF_TECH_ISO15693,
NFC_DIGITAL_RF_TECH_106B,
NFC_DIGITAL_RF_TECH_LAST,
};
/**
* Framing configuration passed as param argument to in_configure_hw and
* tg_configure_hw for NFC_DIGITAL_CONFIG_FRAMING configuration type.
*/
enum {
NFC_DIGITAL_FRAMING_NFCA_SHORT = 0,
NFC_DIGITAL_FRAMING_NFCA_STANDARD,
NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A,
NFC_DIGITAL_FRAMING_NFCA_ANTICOL_COMPLETE,
NFC_DIGITAL_FRAMING_NFCA_T1T,
NFC_DIGITAL_FRAMING_NFCA_T2T,
NFC_DIGITAL_FRAMING_NFCA_T4T,
NFC_DIGITAL_FRAMING_NFCA_NFC_DEP,
NFC_DIGITAL_FRAMING_NFCF,
NFC_DIGITAL_FRAMING_NFCF_T3T,
NFC_DIGITAL_FRAMING_NFCF_NFC_DEP,
NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED,
NFC_DIGITAL_FRAMING_ISO15693_INVENTORY,
NFC_DIGITAL_FRAMING_ISO15693_T5T,
NFC_DIGITAL_FRAMING_NFCB,
NFC_DIGITAL_FRAMING_NFCB_T4T,
NFC_DIGITAL_FRAMING_LAST,
};
#define DIGITAL_MDAA_NFCID1_SIZE 3
struct digital_tg_mdaa_params {
u16 sens_res;
u8 nfcid1[DIGITAL_MDAA_NFCID1_SIZE];
u8 sel_res;
u8 nfcid2[NFC_NFCID2_MAXSIZE];
u16 sc;
};
struct nfc_digital_dev;
/**
* nfc_digital_cmd_complete_t - Definition of command result callback
*
* @ddev: nfc_digital_device ref
* @arg: user data
* @resp: response data
*
* resp pointer can be an error code and will be checked with IS_ERR() macro.
* The callback is responsible for freeing resp sk_buff.
*/
typedef void (*nfc_digital_cmd_complete_t)(struct nfc_digital_dev *ddev,
void *arg, struct sk_buff *resp);
/**
* Device side NFC Digital operations
*
* Initiator mode:
* @in_configure_hw: Hardware configuration for RF technology and communication
* framing in initiator mode. This is a synchronous function.
* @in_send_cmd: Initiator mode data exchange using RF technology and framing
* previously set with in_configure_hw. The peer response is returned
* through callback cb. If an io error occurs or the peer didn't reply
* within the specified timeout (ms), the error code is passed back through
* the resp pointer. This is an asynchronous function.
*
* Target mode: Only NFC-DEP protocol is supported in target mode.
* @tg_configure_hw: Hardware configuration for RF technology and communication
* framing in target mode. This is a synchronous function.
* @tg_send_cmd: Target mode data exchange using RF technology and framing
* previously set with tg_configure_hw. The peer next command is returned
* through callback cb. If an io error occurs or the peer didn't reply
* within the specified timeout (ms), the error code is passed back through
* the resp pointer. This is an asynchronous function.
* @tg_listen: Put the device in listen mode waiting for data from the peer
* device. This is an asynchronous function.
* @tg_listen_mdaa: If supported, put the device in automatic listen mode with
* mode detection and automatic anti-collision. In this mode, the device
* automatically detects the RF technology and executes the anti-collision
* detection using the command responses specified in mdaa_params. The
* mdaa_params structure contains SENS_RES, NFCID1, and SEL_RES for 106A RF
* tech. NFCID2 and system code (sc) for 212F and 424F. The driver returns
* the NFC-DEP ATR_REQ command through cb. The digital stack deducts the RF
* tech by analyzing the SoD of the frame containing the ATR_REQ command.
* This is an asynchronous function.
* @tg_listen_md: If supported, put the device in automatic listen mode with
* mode detection but without automatic anti-collision. In this mode, the
* device automatically detects the RF technology. What the actual
* RF technology is can be retrieved by calling @tg_get_rf_tech.
* The digital stack will then perform the appropriate anti-collision
* sequence. This is an asynchronous function.
* @tg_get_rf_tech: Required when @tg_listen_md is supported, unused otherwise.
* Return the RF Technology that was detected by the @tg_listen_md call.
* This is a synchronous function.
*
* @switch_rf: Turns device radio on or off. The stack does not call explicitly
* switch_rf to turn the radio on. A call to in|tg_configure_hw must turn
* the device radio on.
* @abort_cmd: Discard the last sent command.
*
* Notes: Asynchronous functions have a timeout parameter. It is the driver
* responsibility to call the digital stack back through the
* nfc_digital_cmd_complete_t callback when no RF respsonse has been
* received within the specified time (in milliseconds). In that case the
* driver must set the resp sk_buff to ERR_PTR(-ETIMEDOUT).
* Since the digital stack serializes commands to be sent, it's mandatory
* for the driver to handle the timeout correctly. Otherwise the stack
* would not be able to send new commands, waiting for the reply of the
* current one.
*/
struct nfc_digital_ops {
int (*in_configure_hw)(struct nfc_digital_dev *ddev, int type,
int param);
int (*in_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
u16 timeout, nfc_digital_cmd_complete_t cb,
void *arg);
int (*tg_configure_hw)(struct nfc_digital_dev *ddev, int type,
int param);
int (*tg_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
u16 timeout, nfc_digital_cmd_complete_t cb,
void *arg);
int (*tg_listen)(struct nfc_digital_dev *ddev, u16 timeout,
nfc_digital_cmd_complete_t cb, void *arg);
int (*tg_listen_mdaa)(struct nfc_digital_dev *ddev,
struct digital_tg_mdaa_params *mdaa_params,
u16 timeout, nfc_digital_cmd_complete_t cb,
void *arg);
int (*tg_listen_md)(struct nfc_digital_dev *ddev, u16 timeout,
nfc_digital_cmd_complete_t cb, void *arg);
int (*tg_get_rf_tech)(struct nfc_digital_dev *ddev, u8 *rf_tech);
int (*switch_rf)(struct nfc_digital_dev *ddev, bool on);
void (*abort_cmd)(struct nfc_digital_dev *ddev);
};
#define NFC_DIGITAL_POLL_MODE_COUNT_MAX 6 /* 106A, 212F, and 424F in & tg */
typedef int (*digital_poll_t)(struct nfc_digital_dev *ddev, u8 rf_tech);
struct digital_poll_tech {
u8 rf_tech;
digital_poll_t poll_func;
};
/**
* Driver capabilities - bit mask made of the following values
*
* @NFC_DIGITAL_DRV_CAPS_IN_CRC: The driver handles CRC calculation in initiator
* mode.
* @NFC_DIGITAL_DRV_CAPS_TG_CRC: The driver handles CRC calculation in target
* mode.
*/
#define NFC_DIGITAL_DRV_CAPS_IN_CRC 0x0001
#define NFC_DIGITAL_DRV_CAPS_TG_CRC 0x0002
struct nfc_digital_dev {
struct nfc_dev *nfc_dev;
struct nfc_digital_ops *ops;
u32 protocols;
int tx_headroom;
int tx_tailroom;
u32 driver_capabilities;
void *driver_data;
struct digital_poll_tech poll_techs[NFC_DIGITAL_POLL_MODE_COUNT_MAX];
u8 poll_tech_count;
u8 poll_tech_index;
struct mutex poll_lock;
struct work_struct cmd_work;
struct work_struct cmd_complete_work;
struct list_head cmd_queue;
struct mutex cmd_lock;
struct work_struct poll_work;
u8 curr_protocol;
u8 curr_rf_tech;
u8 curr_nfc_dep_pni;
u16 target_fsc;
int (*skb_check_crc)(struct sk_buff *skb);
void (*skb_add_crc)(struct sk_buff *skb);
};
struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
__u32 supported_protocols,
__u32 driver_capabilities,
int tx_headroom,
int tx_tailroom);
void nfc_digital_free_device(struct nfc_digital_dev *ndev);
int nfc_digital_register_device(struct nfc_digital_dev *ndev);
void nfc_digital_unregister_device(struct nfc_digital_dev *ndev);
static inline void nfc_digital_set_parent_dev(struct nfc_digital_dev *ndev,
struct device *dev)
{
nfc_set_parent_dev(ndev->nfc_dev, dev);
}
static inline void nfc_digital_set_drvdata(struct nfc_digital_dev *dev,
void *data)
{
dev->driver_data = data;
}
static inline void *nfc_digital_get_drvdata(struct nfc_digital_dev *dev)
{
return dev->driver_data;
}
#endif /* __NFC_DIGITAL_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, see <http://www.gnu.org/licenses/>.
*/
#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 (*load_session) (struct nfc_hci_dev *hdev);
int (*hci_ready) (struct nfc_hci_dev *hdev);
/*
* xmit must always send the complete buffer before
* returning. Returned result must be 0 for success
* or negative for failure.
*/
int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
int (*start_poll) (struct nfc_hci_dev *hdev,
u32 im_protocols, u32 tm_protocols);
void (*stop_poll) (struct nfc_hci_dev *hdev);
int (*dep_link_up)(struct nfc_hci_dev *hdev, struct nfc_target *target,
u8 comm_mode, u8 *gb, size_t gb_len);
int (*dep_link_down)(struct nfc_hci_dev *hdev);
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 (*im_transceive) (struct nfc_hci_dev *hdev,
struct nfc_target *target, struct sk_buff *skb,
data_exchange_cb_t cb, void *cb_context);
int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb);
int (*check_presence)(struct nfc_hci_dev *hdev,
struct nfc_target *target);
int (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event,
struct sk_buff *skb);
int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
int (*discover_se)(struct nfc_hci_dev *dev);
int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
int (*disable_se)(struct nfc_hci_dev *dev, u32 se_idx);
};
/* Pipes */
#define NFC_HCI_INVALID_PIPE 0x80
#define NFC_HCI_LINK_MGMT_PIPE 0x00
#define NFC_HCI_ADMIN_PIPE 0x01
struct nfc_hci_gate {
u8 gate;
u8 pipe;
};
#define NFC_HCI_MAX_CUSTOM_GATES 50
struct nfc_hci_init_data {
u8 gate_count;
struct nfc_hci_gate 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
/*
* These values can be specified by a driver to indicate it requires some
* adaptation of the HCI standard.
*
* NFC_HCI_QUIRK_SHORT_CLEAR - send HCI_ADM_CLEAR_ALL_PIPE cmd with no params
*/
enum {
NFC_HCI_QUIRK_SHORT_CLEAR = 0,
};
struct nfc_hci_dev {
struct nfc_dev *ndev;
u32 max_data_link_payload;
bool shutting_down;
struct mutex msg_tx_mutex;
struct list_head msg_tx_queue;
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 work_struct msg_rx_work;
struct sk_buff_head msg_rx_queue;
struct nfc_hci_ops *ops;
struct nfc_llc *llc;
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;
int async_cb_type;
data_exchange_cb_t async_cb;
void *async_cb_context;
u8 *gb;
size_t gb_len;
unsigned long quirks;
};
/* hci device allocation */
struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
struct nfc_hci_init_data *init_data,
unsigned long quirks,
u32 protocols,
const char *llc_name,
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);
void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err);
int nfc_hci_result_to_errno(u8 result);
/* 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,
u8 pipe);
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_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
const u8 *param, size_t param_len,
data_exchange_cb_t cb, void *cb_context);
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);
int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
u32 nfc_hci_sak_to_protocol(u8 sak);
#endif /* __NET_HCI_H */

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/*
* Link Layer Control manager public interface
*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __NFC_LLC_H_
#define __NFC_LLC_H_
#include <net/nfc/hci.h>
#include <linux/skbuff.h>
#define LLC_NOP_NAME "nop"
#define LLC_SHDLC_NAME "shdlc"
typedef void (*rcv_to_hci_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
typedef int (*xmit_to_drv_t) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
typedef void (*llc_failure_t) (struct nfc_hci_dev *hdev, int err);
struct nfc_llc;
struct nfc_llc *nfc_llc_allocate(const char *name, struct nfc_hci_dev *hdev,
xmit_to_drv_t xmit_to_drv,
rcv_to_hci_t rcv_to_hci, int tx_headroom,
int tx_tailroom, llc_failure_t llc_failure);
void nfc_llc_free(struct nfc_llc *llc);
void nfc_llc_get_rx_head_tail_room(struct nfc_llc *llc, int *rx_headroom,
int *rx_tailroom);
int nfc_llc_start(struct nfc_llc *llc);
int nfc_llc_stop(struct nfc_llc *llc);
void nfc_llc_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb);
int nfc_llc_xmit_from_hci(struct nfc_llc *llc, struct sk_buff *skb);
int nfc_llc_init(void);
void nfc_llc_exit(void);
#endif /* __NFC_LLC_H_ */

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/*
* The NFC Controller Interface is the communication protocol between an
* NFC Controller (NFCC) and a Device Host (DH).
*
* Copyright (C) 2014 Marvell International Ltd.
* Copyright (C) 2011 Texas Instruments, Inc.
*
* Written by Ilan Elias <ilane@ti.com>
*
* Acknowledgements:
* This file is based on hci.h, which was written
* by Maxim Krasnyansky.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __NCI_H
#define __NCI_H
/* NCI constants */
#define NCI_MAX_NUM_MAPPING_CONFIGS 10
#define NCI_MAX_NUM_RF_CONFIGS 10
#define NCI_MAX_NUM_CONN 10
#define NCI_MAX_PARAM_LEN 251
/* NCI Status Codes */
#define NCI_STATUS_OK 0x00
#define NCI_STATUS_REJECTED 0x01
#define NCI_STATUS_RF_FRAME_CORRUPTED 0x02
#define NCI_STATUS_FAILED 0x03
#define NCI_STATUS_NOT_INITIALIZED 0x04
#define NCI_STATUS_SYNTAX_ERROR 0x05
#define NCI_STATUS_SEMANTIC_ERROR 0x06
#define NCI_STATUS_UNKNOWN_GID 0x07
#define NCI_STATUS_UNKNOWN_OID 0x08
#define NCI_STATUS_INVALID_PARAM 0x09
#define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0a
/* Discovery Specific Status Codes */
#define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0
#define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1
#define NCI_STATUS_DISCOVERY_TEAR_DOWN 0xa2
/* RF Interface Specific Status Codes */
#define NCI_STATUS_RF_TRANSMISSION_ERROR 0xb0
#define NCI_STATUS_RF_PROTOCOL_ERROR 0xb1
#define NCI_STATUS_RF_TIMEOUT_ERROR 0xb2
/* NFCEE Interface Specific Status Codes */
#define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc0
#define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc1
#define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc2
#define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc3
/* NCI RF Technology and Mode */
#define NCI_NFC_A_PASSIVE_POLL_MODE 0x00
#define NCI_NFC_B_PASSIVE_POLL_MODE 0x01
#define NCI_NFC_F_PASSIVE_POLL_MODE 0x02
#define NCI_NFC_A_ACTIVE_POLL_MODE 0x03
#define NCI_NFC_F_ACTIVE_POLL_MODE 0x05
#define NCI_NFC_V_PASSIVE_POLL_MODE 0x06
#define NCI_NFC_A_PASSIVE_LISTEN_MODE 0x80
#define NCI_NFC_B_PASSIVE_LISTEN_MODE 0x81
#define NCI_NFC_F_PASSIVE_LISTEN_MODE 0x82
#define NCI_NFC_A_ACTIVE_LISTEN_MODE 0x83
#define NCI_NFC_F_ACTIVE_LISTEN_MODE 0x85
/* NCI RF Technologies */
#define NCI_NFC_RF_TECHNOLOGY_A 0x00
#define NCI_NFC_RF_TECHNOLOGY_B 0x01
#define NCI_NFC_RF_TECHNOLOGY_F 0x02
#define NCI_NFC_RF_TECHNOLOGY_V 0x03
/* NCI Bit Rates */
#define NCI_NFC_BIT_RATE_106 0x00
#define NCI_NFC_BIT_RATE_212 0x01
#define NCI_NFC_BIT_RATE_424 0x02
#define NCI_NFC_BIT_RATE_848 0x03
#define NCI_NFC_BIT_RATE_1695 0x04
#define NCI_NFC_BIT_RATE_3390 0x05
#define NCI_NFC_BIT_RATE_6780 0x06
#define NCI_NFC_BIT_RATE_26 0x20
/* NCI RF Protocols */
#define NCI_RF_PROTOCOL_UNKNOWN 0x00
#define NCI_RF_PROTOCOL_T1T 0x01
#define NCI_RF_PROTOCOL_T2T 0x02
#define NCI_RF_PROTOCOL_T3T 0x03
#define NCI_RF_PROTOCOL_ISO_DEP 0x04
#define NCI_RF_PROTOCOL_NFC_DEP 0x05
#define NCI_RF_PROTOCOL_T5T 0x06
/* NCI RF Interfaces */
#define NCI_RF_INTERFACE_NFCEE_DIRECT 0x00
#define NCI_RF_INTERFACE_FRAME 0x01
#define NCI_RF_INTERFACE_ISO_DEP 0x02
#define NCI_RF_INTERFACE_NFC_DEP 0x03
/* NCI Configuration Parameter Tags */
#define NCI_PN_ATR_REQ_GEN_BYTES 0x29
/* NCI Reset types */
#define NCI_RESET_TYPE_KEEP_CONFIG 0x00
#define NCI_RESET_TYPE_RESET_CONFIG 0x01
/* NCI Static RF connection ID */
#define NCI_STATIC_RF_CONN_ID 0x00
/* NCI Data Flow Control */
#define NCI_DATA_FLOW_CONTROL_NOT_USED 0xff
/* NCI RF_DISCOVER_MAP_CMD modes */
#define NCI_DISC_MAP_MODE_POLL 0x01
#define NCI_DISC_MAP_MODE_LISTEN 0x02
/* NCI Discover Notification Type */
#define NCI_DISCOVER_NTF_TYPE_LAST 0x00
#define NCI_DISCOVER_NTF_TYPE_LAST_NFCC 0x01
#define NCI_DISCOVER_NTF_TYPE_MORE 0x02
/* NCI Deactivation Type */
#define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00
#define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01
#define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE 0x02
#define NCI_DEACTIVATE_TYPE_DISCOVERY 0x03
/* Message Type (MT) */
#define NCI_MT_DATA_PKT 0x00
#define NCI_MT_CMD_PKT 0x01
#define NCI_MT_RSP_PKT 0x02
#define NCI_MT_NTF_PKT 0x03
#define nci_mt(hdr) (((hdr)[0]>>5)&0x07)
#define nci_mt_set(hdr, mt) ((hdr)[0] |= (__u8)(((mt)&0x07)<<5))
/* Packet Boundary Flag (PBF) */
#define NCI_PBF_LAST 0x00
#define NCI_PBF_CONT 0x01
#define nci_pbf(hdr) (__u8)(((hdr)[0]>>4)&0x01)
#define nci_pbf_set(hdr, pbf) ((hdr)[0] |= (__u8)(((pbf)&0x01)<<4))
/* Control Opcode manipulation */
#define nci_opcode_pack(gid, oid) (__u16)((((__u16)((gid)&0x0f))<<8)|\
((__u16)((oid)&0x3f)))
#define nci_opcode(hdr) nci_opcode_pack(hdr[0], hdr[1])
#define nci_opcode_gid(op) (__u8)(((op)&0x0f00)>>8)
#define nci_opcode_oid(op) (__u8)((op)&0x003f)
/* Payload Length */
#define nci_plen(hdr) (__u8)((hdr)[2])
/* Connection ID */
#define nci_conn_id(hdr) (__u8)(((hdr)[0])&0x0f)
/* GID values */
#define NCI_GID_CORE 0x0
#define NCI_GID_RF_MGMT 0x1
#define NCI_GID_NFCEE_MGMT 0x2
#define NCI_GID_PROPRIETARY 0xf
/* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */
#define NCI_SPI_HDR_LEN 4
#define NCI_SPI_CRC_LEN 2
/* ---- NCI Packet structures ---- */
#define NCI_CTRL_HDR_SIZE 3
#define NCI_DATA_HDR_SIZE 3
struct nci_ctrl_hdr {
__u8 gid; /* MT & PBF & GID */
__u8 oid;
__u8 plen;
} __packed;
struct nci_data_hdr {
__u8 conn_id; /* MT & PBF & ConnID */
__u8 rfu;
__u8 plen;
} __packed;
/* ------------------------ */
/* ----- NCI Commands ---- */
/* ------------------------ */
#define NCI_OP_CORE_RESET_CMD nci_opcode_pack(NCI_GID_CORE, 0x00)
struct nci_core_reset_cmd {
__u8 reset_type;
} __packed;
#define NCI_OP_CORE_INIT_CMD nci_opcode_pack(NCI_GID_CORE, 0x01)
#define NCI_OP_CORE_SET_CONFIG_CMD nci_opcode_pack(NCI_GID_CORE, 0x02)
struct set_config_param {
__u8 id;
__u8 len;
__u8 val[NCI_MAX_PARAM_LEN];
} __packed;
struct nci_core_set_config_cmd {
__u8 num_params;
struct set_config_param param; /* support 1 param per cmd is enough */
} __packed;
#define NCI_OP_RF_DISCOVER_MAP_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
struct disc_map_config {
__u8 rf_protocol;
__u8 mode;
__u8 rf_interface;
} __packed;
struct nci_rf_disc_map_cmd {
__u8 num_mapping_configs;
struct disc_map_config mapping_configs
[NCI_MAX_NUM_MAPPING_CONFIGS];
} __packed;
#define NCI_OP_RF_DISCOVER_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
struct disc_config {
__u8 rf_tech_and_mode;
__u8 frequency;
} __packed;
struct nci_rf_disc_cmd {
__u8 num_disc_configs;
struct disc_config disc_configs[NCI_MAX_NUM_RF_CONFIGS];
} __packed;
#define NCI_OP_RF_DISCOVER_SELECT_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
struct nci_rf_discover_select_cmd {
__u8 rf_discovery_id;
__u8 rf_protocol;
__u8 rf_interface;
} __packed;
#define NCI_OP_RF_DEACTIVATE_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
struct nci_rf_deactivate_cmd {
__u8 type;
} __packed;
/* ----------------------- */
/* ---- NCI Responses ---- */
/* ----------------------- */
#define NCI_OP_CORE_RESET_RSP nci_opcode_pack(NCI_GID_CORE, 0x00)
struct nci_core_reset_rsp {
__u8 status;
__u8 nci_ver;
__u8 config_status;
} __packed;
#define NCI_OP_CORE_INIT_RSP nci_opcode_pack(NCI_GID_CORE, 0x01)
struct nci_core_init_rsp_1 {
__u8 status;
__le32 nfcc_features;
__u8 num_supported_rf_interfaces;
__u8 supported_rf_interfaces[0]; /* variable size array */
/* continuted in nci_core_init_rsp_2 */
} __packed;
struct nci_core_init_rsp_2 {
__u8 max_logical_connections;
__le16 max_routing_table_size;
__u8 max_ctrl_pkt_payload_len;
__le16 max_size_for_large_params;
__u8 manufact_id;
__le32 manufact_specific_info;
} __packed;
#define NCI_OP_CORE_SET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x02)
struct nci_core_set_config_rsp {
__u8 status;
__u8 num_params;
__u8 params_id[0]; /* variable size array */
} __packed;
#define NCI_OP_RF_DISCOVER_MAP_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
#define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
#define NCI_OP_RF_DISCOVER_SELECT_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
#define NCI_OP_RF_DEACTIVATE_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
/* --------------------------- */
/* ---- NCI Notifications ---- */
/* --------------------------- */
#define NCI_OP_CORE_CONN_CREDITS_NTF nci_opcode_pack(NCI_GID_CORE, 0x06)
struct conn_credit_entry {
__u8 conn_id;
__u8 credits;
} __packed;
struct nci_core_conn_credit_ntf {
__u8 num_entries;
struct conn_credit_entry conn_entries[NCI_MAX_NUM_CONN];
} __packed;
#define NCI_OP_CORE_GENERIC_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x07)
#define NCI_OP_CORE_INTF_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x08)
struct nci_core_intf_error_ntf {
__u8 status;
__u8 conn_id;
} __packed;
#define NCI_OP_RF_DISCOVER_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
struct rf_tech_specific_params_nfca_poll {
__u16 sens_res;
__u8 nfcid1_len; /* 0, 4, 7, or 10 Bytes */
__u8 nfcid1[10];
__u8 sel_res_len; /* 0 or 1 Bytes */
__u8 sel_res;
} __packed;
struct rf_tech_specific_params_nfcb_poll {
__u8 sensb_res_len;
__u8 sensb_res[12]; /* 11 or 12 Bytes */
} __packed;
struct rf_tech_specific_params_nfcf_poll {
__u8 bit_rate;
__u8 sensf_res_len;
__u8 sensf_res[18]; /* 16 or 18 Bytes */
} __packed;
struct rf_tech_specific_params_nfcv_poll {
__u8 res_flags;
__u8 dsfid;
__u8 uid[8]; /* 8 Bytes */
} __packed;
struct nci_rf_discover_ntf {
__u8 rf_discovery_id;
__u8 rf_protocol;
__u8 rf_tech_and_mode;
__u8 rf_tech_specific_params_len;
union {
struct rf_tech_specific_params_nfca_poll nfca_poll;
struct rf_tech_specific_params_nfcb_poll nfcb_poll;
struct rf_tech_specific_params_nfcf_poll nfcf_poll;
struct rf_tech_specific_params_nfcv_poll nfcv_poll;
} rf_tech_specific_params;
__u8 ntf_type;
} __packed;
#define NCI_OP_RF_INTF_ACTIVATED_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
struct activation_params_nfca_poll_iso_dep {
__u8 rats_res_len;
__u8 rats_res[20];
};
struct activation_params_nfcb_poll_iso_dep {
__u8 attrib_res_len;
__u8 attrib_res[50];
};
struct activation_params_poll_nfc_dep {
__u8 atr_res_len;
__u8 atr_res[63];
};
struct nci_rf_intf_activated_ntf {
__u8 rf_discovery_id;
__u8 rf_interface;
__u8 rf_protocol;
__u8 activation_rf_tech_and_mode;
__u8 max_data_pkt_payload_size;
__u8 initial_num_credits;
__u8 rf_tech_specific_params_len;
union {
struct rf_tech_specific_params_nfca_poll nfca_poll;
struct rf_tech_specific_params_nfcb_poll nfcb_poll;
struct rf_tech_specific_params_nfcf_poll nfcf_poll;
struct rf_tech_specific_params_nfcv_poll nfcv_poll;
} rf_tech_specific_params;
__u8 data_exch_rf_tech_and_mode;
__u8 data_exch_tx_bit_rate;
__u8 data_exch_rx_bit_rate;
__u8 activation_params_len;
union {
struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep;
struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep;
struct activation_params_poll_nfc_dep poll_nfc_dep;
} activation_params;
} __packed;
#define NCI_OP_RF_DEACTIVATE_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
struct nci_rf_deactivate_ntf {
__u8 type;
__u8 reason;
} __packed;
#endif /* __NCI_H */

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/*
* The NFC Controller Interface is the communication protocol between an
* NFC Controller (NFCC) and a Device Host (DH).
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
* Written by Ilan Elias <ilane@ti.com>
*
* Acknowledgements:
* This file is based on hci_core.h, which was written
* by Maxim Krasnyansky.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __NCI_CORE_H
#define __NCI_CORE_H
#include <linux/interrupt.h>
#include <linux/skbuff.h>
#include <net/nfc/nfc.h>
#include <net/nfc/nci.h>
/* NCI device flags */
enum nci_flag {
NCI_INIT,
NCI_UP,
NCI_DATA_EXCHANGE,
NCI_DATA_EXCHANGE_TO,
};
/* NCI device states */
enum nci_state {
NCI_IDLE,
NCI_DISCOVERY,
NCI_W4_ALL_DISCOVERIES,
NCI_W4_HOST_SELECT,
NCI_POLL_ACTIVE,
};
/* NCI timeouts */
#define NCI_RESET_TIMEOUT 5000
#define NCI_INIT_TIMEOUT 5000
#define NCI_SET_CONFIG_TIMEOUT 5000
#define NCI_RF_DISC_TIMEOUT 5000
#define NCI_RF_DISC_SELECT_TIMEOUT 5000
#define NCI_RF_DEACTIVATE_TIMEOUT 30000
#define NCI_CMD_TIMEOUT 5000
#define NCI_DATA_TIMEOUT 700
struct nci_dev;
struct nci_ops {
int (*open)(struct nci_dev *ndev);
int (*close)(struct nci_dev *ndev);
int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
int (*setup)(struct nci_dev *ndev);
__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
};
#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
#define NCI_MAX_DISCOVERED_TARGETS 10
/* NCI Core structures */
struct nci_dev {
struct nfc_dev *nfc_dev;
struct nci_ops *ops;
int tx_headroom;
int tx_tailroom;
atomic_t state;
unsigned long flags;
atomic_t cmd_cnt;
atomic_t credits_cnt;
struct timer_list cmd_timer;
struct timer_list data_timer;
struct workqueue_struct *cmd_wq;
struct work_struct cmd_work;
struct workqueue_struct *rx_wq;
struct work_struct rx_work;
struct workqueue_struct *tx_wq;
struct work_struct tx_work;
struct sk_buff_head cmd_q;
struct sk_buff_head rx_q;
struct sk_buff_head tx_q;
struct mutex req_lock;
struct completion req_completion;
__u32 req_status;
__u32 req_result;
void *driver_data;
__u32 poll_prots;
__u32 target_active_prot;
struct nfc_target targets[NCI_MAX_DISCOVERED_TARGETS];
int n_targets;
/* received during NCI_OP_CORE_RESET_RSP */
__u8 nci_ver;
/* received during NCI_OP_CORE_INIT_RSP */
__u32 nfcc_features;
__u8 num_supported_rf_interfaces;
__u8 supported_rf_interfaces
[NCI_MAX_SUPPORTED_RF_INTERFACES];
__u8 max_logical_connections;
__u16 max_routing_table_size;
__u8 max_ctrl_pkt_payload_len;
__u16 max_size_for_large_params;
__u8 manufact_id;
__u32 manufact_specific_info;
/* received during NCI_OP_RF_INTF_ACTIVATED_NTF */
__u8 max_data_pkt_payload_size;
__u8 initial_num_credits;
/* stored during nci_data_exchange */
data_exchange_cb_t data_exchange_cb;
void *data_exchange_cb_context;
struct sk_buff *rx_data_reassembly;
/* stored during intf_activated_ntf */
__u8 remote_gb[NFC_MAX_GT_LEN];
__u8 remote_gb_len;
};
/* ----- NCI Devices ----- */
struct nci_dev *nci_allocate_device(struct nci_ops *ops,
__u32 supported_protocols,
int tx_headroom,
int tx_tailroom);
void nci_free_device(struct nci_dev *ndev);
int nci_register_device(struct nci_dev *ndev);
void nci_unregister_device(struct nci_dev *ndev);
int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
unsigned int len,
gfp_t how)
{
struct sk_buff *skb;
skb = alloc_skb(len + ndev->tx_headroom + ndev->tx_tailroom, how);
if (skb)
skb_reserve(skb, ndev->tx_headroom);
return skb;
}
static inline void nci_set_parent_dev(struct nci_dev *ndev, struct device *dev)
{
nfc_set_parent_dev(ndev->nfc_dev, dev);
}
static inline void nci_set_drvdata(struct nci_dev *ndev, void *data)
{
ndev->driver_data = data;
}
static inline void *nci_get_drvdata(struct nci_dev *ndev)
{
return ndev->driver_data;
}
void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb);
void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
int err);
void nci_clear_target_list(struct nci_dev *ndev);
/* ----- NCI requests ----- */
#define NCI_REQ_DONE 0
#define NCI_REQ_PEND 1
#define NCI_REQ_CANCELED 2
void nci_req_complete(struct nci_dev *ndev, int result);
/* ----- NCI status code ----- */
int nci_to_errno(__u8 code);
/* ----- NCI over SPI acknowledge modes ----- */
#define NCI_SPI_CRC_DISABLED 0x00
#define NCI_SPI_CRC_ENABLED 0x01
/* ----- NCI SPI structures ----- */
struct nci_spi {
struct nci_dev *ndev;
struct spi_device *spi;
unsigned int xfer_udelay; /* microseconds delay between
transactions */
u8 acknowledge_mode;
struct completion req_completion;
u8 req_result;
};
/* ----- NCI SPI ----- */
struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
u8 acknowledge_mode, unsigned int delay,
struct nci_dev *ndev);
int nci_spi_send(struct nci_spi *nspi,
struct completion *write_handshake_completion,
struct sk_buff *skb);
struct sk_buff *nci_spi_read(struct nci_spi *nspi);
#endif /* __NCI_CORE_H */

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/*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __NET_NFC_H
#define __NET_NFC_H
#include <linux/nfc.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#define nfc_info(dev, fmt, ...) dev_info((dev), "NFC: " fmt, ##__VA_ARGS__)
#define nfc_err(dev, fmt, ...) dev_err((dev), "NFC: " fmt, ##__VA_ARGS__)
struct nfc_phy_ops {
int (*write)(void *dev_id, struct sk_buff *skb);
int (*enable)(void *dev_id);
void (*disable)(void *dev_id);
};
struct nfc_dev;
/**
* data_exchange_cb_t - Definition of nfc_data_exchange callback
*
* @context: nfc_data_exchange cb_context parameter
* @skb: response data
* @err: If an error has occurred during data exchange, it is the
* error number. Zero means no error.
*
* When a rx or tx package is lost or corrupted or the target gets out
* of the operating field, err is -EIO.
*/
typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb,
int err);
typedef void (*se_io_cb_t)(void *context, u8 *apdu, size_t apdu_len, int err);
struct nfc_target;
struct nfc_ops {
int (*dev_up)(struct nfc_dev *dev);
int (*dev_down)(struct nfc_dev *dev);
int (*start_poll)(struct nfc_dev *dev,
u32 im_protocols, u32 tm_protocols);
void (*stop_poll)(struct nfc_dev *dev);
int (*dep_link_up)(struct nfc_dev *dev, struct nfc_target *target,
u8 comm_mode, u8 *gb, size_t gb_len);
int (*dep_link_down)(struct nfc_dev *dev);
int (*activate_target)(struct nfc_dev *dev, struct nfc_target *target,
u32 protocol);
void (*deactivate_target)(struct nfc_dev *dev,
struct nfc_target *target);
int (*im_transceive)(struct nfc_dev *dev, struct nfc_target *target,
struct sk_buff *skb, data_exchange_cb_t cb,
void *cb_context);
int (*tm_send)(struct nfc_dev *dev, struct sk_buff *skb);
int (*check_presence)(struct nfc_dev *dev, struct nfc_target *target);
int (*fw_download)(struct nfc_dev *dev, const char *firmware_name);
/* Secure Element API */
int (*discover_se)(struct nfc_dev *dev);
int (*enable_se)(struct nfc_dev *dev, u32 se_idx);
int (*disable_se)(struct nfc_dev *dev, u32 se_idx);
int (*se_io) (struct nfc_dev *dev, u32 se_idx,
u8 *apdu, size_t apdu_length,
se_io_cb_t cb, void *cb_context);
};
#define NFC_TARGET_IDX_ANY -1
#define NFC_MAX_GT_LEN 48
#define NFC_ATR_RES_GT_OFFSET 15
/**
* struct nfc_target - NFC target descriptiom
*
* @sens_res: 2 bytes describing the target SENS_RES response, if the target
* is a type A one. The %sens_res most significant byte must be byte 2
* as described by the NFC Forum digital specification (i.e. the platform
* configuration one) while %sens_res least significant byte is byte 1.
*/
struct nfc_target {
u32 idx;
u32 supported_protocols;
u16 sens_res;
u8 sel_res;
u8 nfcid1_len;
u8 nfcid1[NFC_NFCID1_MAXSIZE];
u8 nfcid2_len;
u8 nfcid2[NFC_NFCID2_MAXSIZE];
u8 sensb_res_len;
u8 sensb_res[NFC_SENSB_RES_MAXSIZE];
u8 sensf_res_len;
u8 sensf_res[NFC_SENSF_RES_MAXSIZE];
u8 hci_reader_gate;
u8 logical_idx;
u8 is_iso15693;
u8 iso15693_dsfid;
u8 iso15693_uid[NFC_ISO15693_UID_MAXSIZE];
};
/**
* nfc_se - A structure for NFC accessible secure elements.
*
* @idx: The secure element index. User space will enable or
* disable a secure element by its index.
* @type: The secure element type. It can be SE_UICC or
* SE_EMBEDDED.
* @state: The secure element state, either enabled or disabled.
*
*/
struct nfc_se {
struct list_head list;
u32 idx;
u16 type;
u16 state;
};
struct nfc_genl_data {
u32 poll_req_portid;
struct mutex genl_data_mutex;
};
struct nfc_dev {
int idx;
u32 target_next_idx;
struct nfc_target *targets;
int n_targets;
int targets_generation;
struct device dev;
bool dev_up;
bool fw_download_in_progress;
u8 rf_mode;
bool polling;
struct nfc_target *active_target;
bool dep_link_up;
struct nfc_genl_data genl_data;
u32 supported_protocols;
struct list_head secure_elements;
int tx_headroom;
int tx_tailroom;
struct timer_list check_pres_timer;
struct work_struct check_pres_work;
bool shutting_down;
struct rfkill *rfkill;
struct nfc_ops *ops;
};
#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
extern struct class nfc_class;
struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
u32 supported_protocols,
int tx_headroom,
int tx_tailroom);
/**
* nfc_free_device - free nfc device
*
* @dev: The nfc device to free
*/
static inline void nfc_free_device(struct nfc_dev *dev)
{
put_device(&dev->dev);
}
int nfc_register_device(struct nfc_dev *dev);
void nfc_unregister_device(struct nfc_dev *dev);
/**
* nfc_set_parent_dev - set the parent device
*
* @nfc_dev: The nfc device whose parent is being set
* @dev: The parent device
*/
static inline void nfc_set_parent_dev(struct nfc_dev *nfc_dev,
struct device *dev)
{
nfc_dev->dev.parent = dev;
}
/**
* nfc_set_drvdata - set driver specifc data
*
* @dev: The nfc device
* @data: Pointer to driver specifc data
*/
static inline void nfc_set_drvdata(struct nfc_dev *dev, void *data)
{
dev_set_drvdata(&dev->dev, data);
}
/**
* nfc_get_drvdata - get driver specifc data
*
* @dev: The nfc device
*/
static inline void *nfc_get_drvdata(struct nfc_dev *dev)
{
return dev_get_drvdata(&dev->dev);
}
/**
* nfc_device_name - get the nfc device name
*
* @dev: The nfc device whose name to return
*/
static inline const char *nfc_device_name(struct nfc_dev *dev)
{
return dev_name(&dev->dev);
}
struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
unsigned int flags, unsigned int size,
unsigned int *err);
struct sk_buff *nfc_alloc_recv_skb(unsigned int size, gfp_t gfp);
int nfc_set_remote_general_bytes(struct nfc_dev *dev,
u8 *gt, u8 gt_len);
u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len);
int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
u32 result);
int nfc_targets_found(struct nfc_dev *dev,
struct nfc_target *targets, int ntargets);
int nfc_target_lost(struct nfc_dev *dev, u32 target_idx);
int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
u8 comm_mode, u8 rf_mode);
int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
u8 *gb, size_t gb_len);
int nfc_tm_deactivated(struct nfc_dev *dev);
int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb);
void nfc_driver_failure(struct nfc_dev *dev, int err);
int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type);
int nfc_remove_se(struct nfc_dev *dev, u32 se_idx);
struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx);
void nfc_send_to_raw_sock(struct nfc_dev *dev, struct sk_buff *skb,
u8 payload_type, u8 direction);
#endif /* __NET_NFC_H */