/* * The NFC Controller Interface is the communication protocol between an * NFC Controller (NFCC) and a Device Host (DH). * * Copyright (C) 2011 Texas Instruments, Inc. * * Written by Ilan Elias * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #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 /* NCI Status Codes */ #define NCI_STATUS_OK 0x00 #define NCI_STATUS_REJECTED 0x01 #define NCI_STATUS_MESSAGE_CORRUPTED 0x02 #define NCI_STATUS_BUFFER_FULL 0x03 #define NCI_STATUS_FAILED 0x04 #define NCI_STATUS_NOT_INITIALIZED 0x05 #define NCI_STATUS_SYNTAX_ERROR 0x06 #define NCI_STATUS_SEMANTIC_ERROR 0x07 #define NCI_STATUS_UNKNOWN_GID 0x08 #define NCI_STATUS_UNKNOWN_OID 0x09 #define NCI_STATUS_INVALID_PARAM 0x0a #define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0b /* Discovery Specific Status Codes */ #define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0 #define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1 /* 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 #define NCI_STATUS_RF_LINK_LOSS_ERROR 0xb3 /* NFCEE Interface Specific Status Codes */ #define NCI_STATUS_MAX_ACTIVE_NFCEE_INTERFACES_REACHED 0xc0 #define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc1 #define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc2 #define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc3 #define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc4 /* 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_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 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 /* NCI RF Interfaces */ #define NCI_RF_INTERFACE_RFU 0x00 #define NCI_RF_INTERFACE_FRAME 0x01 #define NCI_RF_INTERFACE_ISO_DEP 0x02 #define NCI_RF_INTERFACE_NFC_DEP 0x03 /* NCI RF_DISCOVER_MAP_CMD modes */ #define NCI_DISC_MAP_MODE_POLL 0x01 #define NCI_DISC_MAP_MODE_LISTEN 0x02 #define NCI_DISC_MAP_MODE_BOTH 0x03 /* NCI Discovery Types */ #define NCI_DISCOVERY_TYPE_POLL_A_PASSIVE 0x00 #define NCI_DISCOVERY_TYPE_POLL_B_PASSIVE 0x01 #define NCI_DISCOVERY_TYPE_POLL_F_PASSIVE 0x02 #define NCI_DISCOVERY_TYPE_POLL_A_ACTIVE 0x03 #define NCI_DISCOVERY_TYPE_POLL_F_ACTIVE 0x05 #define NCI_DISCOVERY_TYPE_WAKEUP_A_PASSIVE 0x06 #define NCI_DISCOVERY_TYPE_WAKEUP_B_PASSIVE 0x07 #define NCI_DISCOVERY_TYPE_WAKEUP_A_ACTIVE 0x09 #define NCI_DISCOVERY_TYPE_LISTEN_A_PASSIVE 0x80 #define NCI_DISCOVERY_TYPE_LISTEN_B_PASSIVE 0x81 #define NCI_DISCOVERY_TYPE_LISTEN_F_PASSIVE 0x82 #define NCI_DISCOVERY_TYPE_LISTEN_A_ACTIVE 0x83 #define NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE 0x85 /* 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_RF_LINK_LOSS 0x03 #define NCI_DEACTIVATE_TYPE_DISCOVERY_ERROR 0x04 /* 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 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) #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) #define NCI_OP_CORE_CONN_CREATE_CMD nci_opcode_pack(NCI_GID_CORE, 0x04) struct nci_core_conn_create_cmd { __u8 target_handle; __u8 num_target_specific_params; } __packed; #define NCI_OP_CORE_CONN_CLOSE_CMD nci_opcode_pack(NCI_GID_CORE, 0x06) #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_type; } __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 type; __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_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; } __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_control_packet_payload_length; __le16 rf_sending_buffer_size; __le16 rf_receiving_buffer_size; __le16 manufacturer_id; } __packed; #define NCI_OP_CORE_SET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x02) #define NCI_OP_CORE_CONN_CREATE_RSP nci_opcode_pack(NCI_GID_CORE, 0x04) struct nci_core_conn_create_rsp { __u8 status; __u8 max_pkt_payload_size; __u8 initial_num_credits; __u8 conn_id; } __packed; #define NCI_OP_CORE_CONN_CLOSE_RSP nci_opcode_pack(NCI_GID_CORE, 0x06) #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_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, 0x07) 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_RF_FIELD_INFO_NTF nci_opcode_pack(NCI_GID_CORE, 0x08) struct nci_rf_field_info_ntf { __u8 rf_field_status; } __packed; #define NCI_OP_RF_ACTIVATE_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05) 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 activation_params_nfca_poll_iso_dep { __u8 rats_res_len; __u8 rats_res[20]; }; struct nci_rf_activate_ntf { __u8 target_handle; __u8 rf_protocol; __u8 rf_tech_and_mode; __u8 rf_tech_specific_params_len; union { struct rf_tech_specific_params_nfca_poll nfca_poll; } rf_tech_specific_params; __u8 rf_interface_type; __u8 activation_params_len; union { struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep; } activation_params; } __packed; #define NCI_OP_RF_DEACTIVATE_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x06) #endif /* __NCI_H */