cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/nfc.h

/*
 * Copyright (C) 2011 Instituto Nokia de Tecnologia
 *
 * Authors:
 *    Lauro Ramos Venancio <lauro.venancio@openbossa.org>
 *    Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#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)
 * @NFC_EVENT_TM_ACTIVATED: event emitted when the adapter is activated in
 *      target mode.
 * @NFC_EVENT_DEVICE_DEACTIVATED: event emitted when the adapter is deactivated
 *      from target mode.
 * @NFC_CMD_LLC_GET_PARAMS: request LTO, RW, and MIUX parameters for a device
 * @NFC_CMD_LLC_SET_PARAMS: set one or more of LTO, RW, and MIUX parameters for
 *      a device. LTO must be set before the link is up otherwise -EINPROGRESS
 *      is returned. RW and MIUX can be set at anytime and will be passed in
 *      subsequent CONNECT and CC messages.
 *      If one of the passed parameters is wrong none is set and -EINVAL is
 *      returned.
 * @NFC_CMD_ENABLE_SE: Enable the physical link to a specific secure element.
 *      Once enabled a secure element will handle card emulation mode, i.e.
 *      starting a poll from a device which has a secure element enabled means
 *      we want to do SE based card emulation.
 * @NFC_CMD_DISABLE_SE: Disable the physical link to a specific secure element.
 * @NFC_CMD_FW_DOWNLOAD: Request to Load/flash firmware, or event to inform
 *      that some firmware was loaded
 * @NFC_EVENT_SE_ADDED: Event emitted when a new secure element is discovered.
 *      This typically will be sent whenever a new NFC controller with either
 *      an embedded SE or an UICC one connected to it through SWP.
 * @NFC_EVENT_SE_REMOVED: Event emitted when a secure element is removed from
 *      the system, as a consequence of e.g. an NFC controller being unplugged.
 * @NFC_EVENT_SE_CONNECTIVITY: This event is emitted whenever a secure element
 *      is requesting connectivity access. For example a UICC SE may need to
 *      talk with a sleeping modem and will notify this need by sending this
 *      event. It is then up to userspace to decide if it will wake the modem
 *      up or not.
 * @NFC_EVENT_SE_TRANSACTION: This event is sent when an application running on
 *      a specific SE notifies us about the end of a transaction. The parameter
 *      for this event is the application ID (AID).
 * @NFC_CMD_GET_SE: Dump all discovered secure elements from an NFC controller.
 * @NFC_CMD_SE_IO: Send/Receive APDUs to/from the selected secure element.
 * @NFC_CMD_ACTIVATE_TARGET: Request NFC controller to reactivate target.
 * @NFC_CMD_VENDOR: Vendor specific command, to be implemented directly
 *      from the driver in order to support hardware specific operations.
 */

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,
	
NFC_EVENT_TARGET_LOST,
	
NFC_EVENT_TM_ACTIVATED,
	
NFC_EVENT_TM_DEACTIVATED,
	
NFC_CMD_LLC_GET_PARAMS,
	
NFC_CMD_LLC_SET_PARAMS,
	
NFC_CMD_ENABLE_SE,
	
NFC_CMD_DISABLE_SE,
	
NFC_CMD_LLC_SDREQ,
	
NFC_EVENT_LLC_SDRES,
	
NFC_CMD_FW_DOWNLOAD,
	
NFC_EVENT_SE_ADDED,
	
NFC_EVENT_SE_REMOVED,
	
NFC_EVENT_SE_CONNECTIVITY,
	
NFC_EVENT_SE_TRANSACTION,
	
NFC_CMD_GET_SE,
	
NFC_CMD_SE_IO,
	
NFC_CMD_ACTIVATE_TARGET,
	
NFC_CMD_VENDOR,
/* 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_TARGET_SENSB_RES: NFC-B targets extra information, max 12 bytes
 * @NFC_ATTR_TARGET_SENSF_RES: NFC-F targets extra information, max 18 bytes
 * @NFC_ATTR_COMM_MODE: Passive or active mode
 * @NFC_ATTR_RF_MODE: Initiator or target
 * @NFC_ATTR_IM_PROTOCOLS: Initiator mode protocols to poll for
 * @NFC_ATTR_TM_PROTOCOLS: Target mode protocols to listen for
 * @NFC_ATTR_LLC_PARAM_LTO: Link TimeOut parameter
 * @NFC_ATTR_LLC_PARAM_RW: Receive Window size parameter
 * @NFC_ATTR_LLC_PARAM_MIUX: MIU eXtension parameter
 * @NFC_ATTR_SE: Available Secure Elements
 * @NFC_ATTR_FIRMWARE_NAME: Free format firmware version
 * @NFC_ATTR_SE_INDEX: Secure element index
 * @NFC_ATTR_SE_TYPE: Secure element type (UICC or EMBEDDED)
 * @NFC_ATTR_FIRMWARE_DOWNLOAD_STATUS: Firmware download operation status
 * @NFC_ATTR_APDU: Secure element APDU
 * @NFC_ATTR_TARGET_ISO15693_DSFID: ISO 15693 Data Storage Format Identifier
 * @NFC_ATTR_TARGET_ISO15693_UID: ISO 15693 Unique Identifier
 * @NFC_ATTR_SE_PARAMS: Parameters data from an evt_transaction
 * @NFC_ATTR_VENDOR_ID: NFC manufacturer unique ID, typically an OUI
 * @NFC_ATTR_VENDOR_SUBCMD: Vendor specific sub command
 * @NFC_ATTR_VENDOR_DATA: Vendor specific data, to be optionally passed
 *      to a vendor specific command implementation
 */

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_TARGET_SENSB_RES,
	
NFC_ATTR_TARGET_SENSF_RES,
	
NFC_ATTR_COMM_MODE,
	
NFC_ATTR_RF_MODE,
	
NFC_ATTR_DEVICE_POWERED,
	
NFC_ATTR_IM_PROTOCOLS,
	
NFC_ATTR_TM_PROTOCOLS,
	
NFC_ATTR_LLC_PARAM_LTO,
	
NFC_ATTR_LLC_PARAM_RW,
	
NFC_ATTR_LLC_PARAM_MIUX,
	
NFC_ATTR_SE,
	
NFC_ATTR_LLC_SDP,
	
NFC_ATTR_FIRMWARE_NAME,
	
NFC_ATTR_SE_INDEX,
	
NFC_ATTR_SE_TYPE,
	
NFC_ATTR_SE_AID,
	
NFC_ATTR_FIRMWARE_DOWNLOAD_STATUS,
	
NFC_ATTR_SE_APDU,
	
NFC_ATTR_TARGET_ISO15693_DSFID,
	
NFC_ATTR_TARGET_ISO15693_UID,
	
NFC_ATTR_SE_PARAMS,
	
NFC_ATTR_VENDOR_ID,
	
NFC_ATTR_VENDOR_SUBCMD,
	
NFC_ATTR_VENDOR_DATA,
/* private: internal use only */
	
__NFC_ATTR_AFTER_LAST
};

#define NFC_ATTR_MAX (__NFC_ATTR_AFTER_LAST - 1)


enum nfc_sdp_attr {
	
NFC_SDP_ATTR_UNSPEC,
	
NFC_SDP_ATTR_URI,
	
NFC_SDP_ATTR_SAP,
/* private: internal use only */
	
__NFC_SDP_ATTR_AFTER_LAST
};

#define NFC_SDP_ATTR_MAX (__NFC_SDP_ATTR_AFTER_LAST - 1)


#define NFC_DEVICE_NAME_MAXSIZE		8

#define NFC_NFCID1_MAXSIZE		10

#define NFC_NFCID2_MAXSIZE		8

#define NFC_NFCID3_MAXSIZE		10

#define NFC_SENSB_RES_MAXSIZE		12

#define NFC_SENSF_RES_MAXSIZE		18

#define NFC_ATR_REQ_MAXSIZE		64

#define NFC_ATR_RES_MAXSIZE		64

#define NFC_ATR_REQ_GB_MAXSIZE		48

#define NFC_ATR_RES_GB_MAXSIZE		47

#define NFC_GB_MAXSIZE			48

#define NFC_FIRMWARE_NAME_MAXSIZE	32

#define NFC_ISO15693_UID_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_ISO14443_B	6

#define NFC_PROTO_ISO15693	7


#define NFC_PROTO_MAX		8

/* 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

#define NFC_RF_NONE      2

/* 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)

#define NFC_PROTO_ISO14443_B_MASK (1 << NFC_PROTO_ISO14443_B)

#define NFC_PROTO_ISO15693_MASK	  (1 << NFC_PROTO_ISO15693)

/* NFC Secure Elements */

#define NFC_SE_UICC     0x1

#define NFC_SE_EMBEDDED 0x2


#define NFC_SE_DISABLED 0x0

#define NFC_SE_ENABLED  0x1


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

/**
 * Pseudo-header info for raw socket packets
 * First byte is the adapter index
 * Second byte contains flags
 *  - 0x01 - Direction (0=RX, 1=TX)
 *  - 0x02-0x04 - Payload type (000=LLCP, 001=NCI, 010=HCI, 011=Digital,
 *                              100=Proprietary)
 *  - 0x05-0x80 - Reserved
 **/

#define NFC_RAW_HEADER_SIZE	2

#define NFC_DIRECTION_RX		0x00

#define NFC_DIRECTION_TX		0x01


#define RAW_PAYLOAD_LLCP 0

#define RAW_PAYLOAD_NCI	1

#define RAW_PAYLOAD_HCI	2

#define RAW_PAYLOAD_DIGITAL	3

#define RAW_PAYLOAD_PROPRIETARY	4

/* socket option names */

#define NFC_LLCP_RW		0

#define NFC_LLCP_MIUX		1

#define NFC_LLCP_REMOTE_MIU	2

#define NFC_LLCP_REMOTE_LTO	3

#define NFC_LLCP_REMOTE_RW	4

#endif /*__LINUX_NFC_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Samuel Ortiz17236.29%1948.72%
Lauro Ramos Venancio15031.65%37.69%
Thierry Escande5411.39%410.26%
Hiren Tandel245.06%12.56%
Ilan Elias224.64%37.69%
Mark A. Greer173.59%12.56%
Julien Lefrique163.38%25.13%
Eric Lapuyade91.90%25.13%
Christophe Ricard61.27%37.69%
Aloisio Almeida Jr40.84%12.56%
Total474100.00%39100.00%
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