397 строки
11 KiB
C
397 строки
11 KiB
C
/*
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* The NFC Controller Interface is the communication protocol between an
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* NFC Controller (NFCC) and a Device Host (DH).
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*
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* Copyright (C) 2011 Texas Instruments, Inc.
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*
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* Written by Ilan Elias <ilane@ti.com>
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*
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* Acknowledgements:
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* This file is based on hci.h, which was written
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* by Maxim Krasnyansky.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __NCI_H
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#define __NCI_H
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/* NCI constants */
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#define NCI_MAX_NUM_MAPPING_CONFIGS 10
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#define NCI_MAX_NUM_RF_CONFIGS 10
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#define NCI_MAX_NUM_CONN 10
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#define NCI_MAX_PARAM_LEN 251
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/* NCI Status Codes */
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#define NCI_STATUS_OK 0x00
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#define NCI_STATUS_REJECTED 0x01
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#define NCI_STATUS_RF_FRAME_CORRUPTED 0x02
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#define NCI_STATUS_FAILED 0x03
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#define NCI_STATUS_NOT_INITIALIZED 0x04
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#define NCI_STATUS_SYNTAX_ERROR 0x05
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#define NCI_STATUS_SEMANTIC_ERROR 0x06
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#define NCI_STATUS_UNKNOWN_GID 0x07
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#define NCI_STATUS_UNKNOWN_OID 0x08
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#define NCI_STATUS_INVALID_PARAM 0x09
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#define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0a
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/* Discovery Specific Status Codes */
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#define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0
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#define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1
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#define NCI_STATUS_DISCOVERY_TEAR_DOWN 0xa2
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/* RF Interface Specific Status Codes */
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#define NCI_STATUS_RF_TRANSMISSION_ERROR 0xb0
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#define NCI_STATUS_RF_PROTOCOL_ERROR 0xb1
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#define NCI_STATUS_RF_TIMEOUT_ERROR 0xb2
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/* NFCEE Interface Specific Status Codes */
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#define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc0
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#define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc1
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#define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc2
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#define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc3
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/* NCI RF Technology and Mode */
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#define NCI_NFC_A_PASSIVE_POLL_MODE 0x00
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#define NCI_NFC_B_PASSIVE_POLL_MODE 0x01
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#define NCI_NFC_F_PASSIVE_POLL_MODE 0x02
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#define NCI_NFC_A_ACTIVE_POLL_MODE 0x03
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#define NCI_NFC_F_ACTIVE_POLL_MODE 0x05
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#define NCI_NFC_15693_PASSIVE_POLL_MODE 0x06
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#define NCI_NFC_A_PASSIVE_LISTEN_MODE 0x80
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#define NCI_NFC_B_PASSIVE_LISTEN_MODE 0x81
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#define NCI_NFC_F_PASSIVE_LISTEN_MODE 0x82
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#define NCI_NFC_A_ACTIVE_LISTEN_MODE 0x83
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#define NCI_NFC_F_ACTIVE_LISTEN_MODE 0x85
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#define NCI_NFC_15693_PASSIVE_LISTEN_MODE 0x86
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/* NCI RF Technologies */
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#define NCI_NFC_RF_TECHNOLOGY_A 0x00
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#define NCI_NFC_RF_TECHNOLOGY_B 0x01
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#define NCI_NFC_RF_TECHNOLOGY_F 0x02
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#define NCI_NFC_RF_TECHNOLOGY_15693 0x03
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/* NCI Bit Rates */
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#define NCI_NFC_BIT_RATE_106 0x00
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#define NCI_NFC_BIT_RATE_212 0x01
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#define NCI_NFC_BIT_RATE_424 0x02
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#define NCI_NFC_BIT_RATE_848 0x03
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#define NCI_NFC_BIT_RATE_1695 0x04
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#define NCI_NFC_BIT_RATE_3390 0x05
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#define NCI_NFC_BIT_RATE_6780 0x06
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/* NCI RF Protocols */
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#define NCI_RF_PROTOCOL_UNKNOWN 0x00
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#define NCI_RF_PROTOCOL_T1T 0x01
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#define NCI_RF_PROTOCOL_T2T 0x02
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#define NCI_RF_PROTOCOL_T3T 0x03
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#define NCI_RF_PROTOCOL_ISO_DEP 0x04
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#define NCI_RF_PROTOCOL_NFC_DEP 0x05
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/* NCI RF Interfaces */
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#define NCI_RF_INTERFACE_NFCEE_DIRECT 0x00
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#define NCI_RF_INTERFACE_FRAME 0x01
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#define NCI_RF_INTERFACE_ISO_DEP 0x02
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#define NCI_RF_INTERFACE_NFC_DEP 0x03
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/* NCI Configuration Parameter Tags */
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#define NCI_PN_ATR_REQ_GEN_BYTES 0x29
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/* NCI Reset types */
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#define NCI_RESET_TYPE_KEEP_CONFIG 0x00
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#define NCI_RESET_TYPE_RESET_CONFIG 0x01
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/* NCI Static RF connection ID */
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#define NCI_STATIC_RF_CONN_ID 0x00
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/* NCI Data Flow Control */
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#define NCI_DATA_FLOW_CONTROL_NOT_USED 0xff
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/* NCI RF_DISCOVER_MAP_CMD modes */
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#define NCI_DISC_MAP_MODE_POLL 0x01
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#define NCI_DISC_MAP_MODE_LISTEN 0x02
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/* NCI Discover Notification Type */
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#define NCI_DISCOVER_NTF_TYPE_LAST 0x00
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#define NCI_DISCOVER_NTF_TYPE_LAST_NFCC 0x01
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#define NCI_DISCOVER_NTF_TYPE_MORE 0x02
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/* NCI Deactivation Type */
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#define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00
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#define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01
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#define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE 0x02
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#define NCI_DEACTIVATE_TYPE_DISCOVERY 0x03
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/* Message Type (MT) */
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#define NCI_MT_DATA_PKT 0x00
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#define NCI_MT_CMD_PKT 0x01
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#define NCI_MT_RSP_PKT 0x02
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#define NCI_MT_NTF_PKT 0x03
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#define nci_mt(hdr) (((hdr)[0]>>5)&0x07)
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#define nci_mt_set(hdr, mt) ((hdr)[0] |= (__u8)(((mt)&0x07)<<5))
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/* Packet Boundary Flag (PBF) */
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#define NCI_PBF_LAST 0x00
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#define NCI_PBF_CONT 0x01
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#define nci_pbf(hdr) (__u8)(((hdr)[0]>>4)&0x01)
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#define nci_pbf_set(hdr, pbf) ((hdr)[0] |= (__u8)(((pbf)&0x01)<<4))
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/* Control Opcode manipulation */
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#define nci_opcode_pack(gid, oid) (__u16)((((__u16)((gid)&0x0f))<<8)|\
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((__u16)((oid)&0x3f)))
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#define nci_opcode(hdr) nci_opcode_pack(hdr[0], hdr[1])
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#define nci_opcode_gid(op) (__u8)(((op)&0x0f00)>>8)
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#define nci_opcode_oid(op) (__u8)((op)&0x003f)
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/* Payload Length */
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#define nci_plen(hdr) (__u8)((hdr)[2])
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/* Connection ID */
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#define nci_conn_id(hdr) (__u8)(((hdr)[0])&0x0f)
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/* GID values */
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#define NCI_GID_CORE 0x0
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#define NCI_GID_RF_MGMT 0x1
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#define NCI_GID_NFCEE_MGMT 0x2
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#define NCI_GID_PROPRIETARY 0xf
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/* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */
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#define NCI_SPI_HDR_LEN 4
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#define NCI_SPI_CRC_LEN 2
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/* ---- NCI Packet structures ---- */
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#define NCI_CTRL_HDR_SIZE 3
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#define NCI_DATA_HDR_SIZE 3
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struct nci_ctrl_hdr {
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__u8 gid; /* MT & PBF & GID */
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__u8 oid;
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__u8 plen;
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} __packed;
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struct nci_data_hdr {
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__u8 conn_id; /* MT & PBF & ConnID */
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__u8 rfu;
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__u8 plen;
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} __packed;
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/* ------------------------ */
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/* ----- NCI Commands ---- */
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/* ------------------------ */
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#define NCI_OP_CORE_RESET_CMD nci_opcode_pack(NCI_GID_CORE, 0x00)
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struct nci_core_reset_cmd {
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__u8 reset_type;
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} __packed;
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#define NCI_OP_CORE_INIT_CMD nci_opcode_pack(NCI_GID_CORE, 0x01)
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#define NCI_OP_CORE_SET_CONFIG_CMD nci_opcode_pack(NCI_GID_CORE, 0x02)
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struct set_config_param {
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__u8 id;
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__u8 len;
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__u8 val[NCI_MAX_PARAM_LEN];
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} __packed;
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struct nci_core_set_config_cmd {
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__u8 num_params;
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struct set_config_param param; /* support 1 param per cmd is enough */
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} __packed;
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#define NCI_OP_RF_DISCOVER_MAP_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
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struct disc_map_config {
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__u8 rf_protocol;
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__u8 mode;
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__u8 rf_interface;
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} __packed;
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struct nci_rf_disc_map_cmd {
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__u8 num_mapping_configs;
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struct disc_map_config mapping_configs
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[NCI_MAX_NUM_MAPPING_CONFIGS];
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} __packed;
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#define NCI_OP_RF_DISCOVER_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
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struct disc_config {
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__u8 rf_tech_and_mode;
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__u8 frequency;
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} __packed;
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struct nci_rf_disc_cmd {
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__u8 num_disc_configs;
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struct disc_config disc_configs[NCI_MAX_NUM_RF_CONFIGS];
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} __packed;
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#define NCI_OP_RF_DISCOVER_SELECT_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
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struct nci_rf_discover_select_cmd {
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__u8 rf_discovery_id;
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__u8 rf_protocol;
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__u8 rf_interface;
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} __packed;
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#define NCI_OP_RF_DEACTIVATE_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
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struct nci_rf_deactivate_cmd {
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__u8 type;
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} __packed;
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/* ----------------------- */
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/* ---- NCI Responses ---- */
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/* ----------------------- */
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#define NCI_OP_CORE_RESET_RSP nci_opcode_pack(NCI_GID_CORE, 0x00)
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struct nci_core_reset_rsp {
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__u8 status;
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__u8 nci_ver;
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__u8 config_status;
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} __packed;
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#define NCI_OP_CORE_INIT_RSP nci_opcode_pack(NCI_GID_CORE, 0x01)
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struct nci_core_init_rsp_1 {
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__u8 status;
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__le32 nfcc_features;
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__u8 num_supported_rf_interfaces;
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__u8 supported_rf_interfaces[0]; /* variable size array */
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/* continuted in nci_core_init_rsp_2 */
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} __packed;
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struct nci_core_init_rsp_2 {
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__u8 max_logical_connections;
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__le16 max_routing_table_size;
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__u8 max_ctrl_pkt_payload_len;
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__le16 max_size_for_large_params;
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__u8 manufact_id;
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__le32 manufact_specific_info;
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} __packed;
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#define NCI_OP_CORE_SET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x02)
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struct nci_core_set_config_rsp {
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__u8 status;
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__u8 num_params;
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__u8 params_id[0]; /* variable size array */
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} __packed;
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#define NCI_OP_RF_DISCOVER_MAP_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
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#define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
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#define NCI_OP_RF_DISCOVER_SELECT_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
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#define NCI_OP_RF_DEACTIVATE_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
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/* --------------------------- */
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/* ---- NCI Notifications ---- */
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/* --------------------------- */
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#define NCI_OP_CORE_CONN_CREDITS_NTF nci_opcode_pack(NCI_GID_CORE, 0x06)
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struct conn_credit_entry {
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__u8 conn_id;
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__u8 credits;
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} __packed;
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struct nci_core_conn_credit_ntf {
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__u8 num_entries;
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struct conn_credit_entry conn_entries[NCI_MAX_NUM_CONN];
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} __packed;
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#define NCI_OP_CORE_GENERIC_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x07)
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#define NCI_OP_CORE_INTF_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x08)
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struct nci_core_intf_error_ntf {
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__u8 status;
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__u8 conn_id;
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} __packed;
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#define NCI_OP_RF_DISCOVER_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
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struct rf_tech_specific_params_nfca_poll {
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__u16 sens_res;
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__u8 nfcid1_len; /* 0, 4, 7, or 10 Bytes */
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__u8 nfcid1[10];
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__u8 sel_res_len; /* 0 or 1 Bytes */
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__u8 sel_res;
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} __packed;
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struct rf_tech_specific_params_nfcb_poll {
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__u8 sensb_res_len;
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__u8 sensb_res[12]; /* 11 or 12 Bytes */
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} __packed;
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struct rf_tech_specific_params_nfcf_poll {
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__u8 bit_rate;
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__u8 sensf_res_len;
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__u8 sensf_res[18]; /* 16 or 18 Bytes */
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} __packed;
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struct nci_rf_discover_ntf {
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__u8 rf_discovery_id;
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__u8 rf_protocol;
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__u8 rf_tech_and_mode;
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__u8 rf_tech_specific_params_len;
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union {
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struct rf_tech_specific_params_nfca_poll nfca_poll;
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struct rf_tech_specific_params_nfcb_poll nfcb_poll;
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struct rf_tech_specific_params_nfcf_poll nfcf_poll;
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} rf_tech_specific_params;
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__u8 ntf_type;
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} __packed;
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#define NCI_OP_RF_INTF_ACTIVATED_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
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struct activation_params_nfca_poll_iso_dep {
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__u8 rats_res_len;
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__u8 rats_res[20];
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};
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struct activation_params_nfcb_poll_iso_dep {
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__u8 attrib_res_len;
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__u8 attrib_res[50];
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};
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struct activation_params_poll_nfc_dep {
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__u8 atr_res_len;
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__u8 atr_res[63];
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};
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struct nci_rf_intf_activated_ntf {
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__u8 rf_discovery_id;
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__u8 rf_interface;
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__u8 rf_protocol;
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__u8 activation_rf_tech_and_mode;
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__u8 max_data_pkt_payload_size;
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__u8 initial_num_credits;
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__u8 rf_tech_specific_params_len;
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union {
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struct rf_tech_specific_params_nfca_poll nfca_poll;
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struct rf_tech_specific_params_nfcb_poll nfcb_poll;
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struct rf_tech_specific_params_nfcf_poll nfcf_poll;
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} rf_tech_specific_params;
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__u8 data_exch_rf_tech_and_mode;
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__u8 data_exch_tx_bit_rate;
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__u8 data_exch_rx_bit_rate;
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__u8 activation_params_len;
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union {
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struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep;
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struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep;
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struct activation_params_poll_nfc_dep poll_nfc_dep;
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} activation_params;
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} __packed;
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#define NCI_OP_RF_DEACTIVATE_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
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struct nci_rf_deactivate_ntf {
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__u8 type;
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__u8 reason;
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} __packed;
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#endif /* __NCI_H */
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