1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2014 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /****************************************************************************** 20 * 21 * This file contains the Near Field Communication (NFC) Card Emulation 22 * mode related internal function / definitions. 23 * 24 ******************************************************************************/ 25 26 #ifndef CE_INT_H_ 27 #define CE_INT_H_ 28 29 #include "ce_api.h" 30 31 #if (CE_TEST_INCLUDED == FALSE) 32 #define CE_MIN_SUP_PROTO NCI_PROTOCOL_FELICA 33 #define CE_MAX_SUP_PROTO NCI_PROTOCOL_ISO4 34 #else 35 #define CE_MIN_SUP_PROTO NCI_PROTOCOL_TYPE1 36 #define CE_MAX_SUP_PROTO NCI_PROTOCOL_MIFARE 37 #endif 38 39 /* CE Type 3 Tag structures */ 40 41 /* Type 3 Tag NDEF card-emulation */ 42 typedef struct { 43 bool initialized; 44 uint8_t version; /* Ver: peer version */ 45 uint8_t 46 nbr; /* NBr: number of blocks that can be read using one Check command */ 47 uint8_t nbw; /* Nbw: number of blocks that can be written using one Update 48 command */ 49 uint16_t nmaxb; /* Nmaxb: maximum number of blocks available for NDEF data */ 50 uint8_t writef; /* WriteFlag: 00h if writing data finished; 0Fh if writing 51 data in progress */ 52 uint8_t 53 rwflag; /* RWFlag: 00h NDEF is read-only; 01h if read/write available */ 54 uint32_t ln; 55 uint8_t* p_buf; /* Current contents for READs */ 56 57 /* Scratch NDEF buffer (for update NDEF commands) */ 58 uint8_t scratch_writef; 59 uint32_t scratch_ln; 60 uint8_t* p_scratch_buf; /* Scratch buffer for WRITE/readback */ 61 } tCE_T3T_NDEF_INFO; 62 63 /* Type 3 Tag current command processing */ 64 typedef struct { 65 uint16_t service_code_list[T3T_MSG_SERVICE_LIST_MAX]; 66 uint8_t* p_block_list_start; 67 uint8_t* p_block_data_start; 68 uint8_t num_services; 69 uint8_t num_blocks; 70 } tCE_T3T_CUR_CMD; 71 72 /* Type 3 Tag control blcok */ 73 typedef struct { 74 uint8_t state; 75 uint16_t system_code; 76 uint8_t local_nfcid2[NCI_RF_F_UID_LEN]; 77 uint8_t local_pmm[NCI_T3T_PMM_LEN]; 78 tCE_T3T_NDEF_INFO ndef_info; 79 tCE_T3T_CUR_CMD cur_cmd; 80 } tCE_T3T_MEM; 81 82 /* CE Type 4 Tag control blocks */ 83 typedef struct { 84 uint8_t aid_len; 85 uint8_t aid[NFC_MAX_AID_LEN]; 86 tCE_CBACK* p_cback; 87 } tCE_T4T_REG_AID; /* registered AID table */ 88 89 typedef struct { 90 TIMER_LIST_ENT timer; /* timeout for update file */ 91 uint8_t cc_file[T4T_FC_TLV_OFFSET_IN_CC + T4T_FILE_CONTROL_TLV_SIZE]; 92 uint8_t* p_ndef_msg; /* storage of NDEF message */ 93 uint16_t nlen; /* current size of NDEF message */ 94 uint16_t max_file_size; /* size of storage + 2 bytes for NLEN */ 95 uint8_t* p_scratch_buf; /* temp storage of NDEF message for update */ 96 97 /* T4T CE App is selected */ 98 #define CE_T4T_STATUS_T4T_APP_SELECTED 0x01 99 /* Registered AID is selected */ 100 #define CE_T4T_STATUS_REG_AID_SELECTED 0x02 101 /* CC file is selected */ 102 #define CE_T4T_STATUS_CC_FILE_SELECTED 0x04 103 /* NDEF file is selected */ 104 #define CE_T4T_STATUS_NDEF_SELECTED 0x08 105 /* NDEF is read-only */ 106 #define CE_T4T_STATUS_NDEF_FILE_READ_ONLY 0x10 107 /* NDEF is updating */ 108 #define CE_T4T_STATUS_NDEF_FILE_UPDATING 0x20 109 /* Wildcard AID selected */ 110 #define CE_T4T_STATUS_WILDCARD_AID_SELECTED 0x40 111 112 uint8_t status; 113 114 tCE_CBACK* p_wildcard_aid_cback; /* registered wildcard AID callback */ 115 tCE_T4T_REG_AID reg_aid[CE_T4T_MAX_REG_AID]; /* registered AID table */ 116 uint8_t selected_aid_idx; 117 } tCE_T4T_MEM; 118 119 /* CE memory control blocks */ 120 typedef struct { 121 tCE_T3T_MEM t3t; 122 tCE_T4T_MEM t4t; 123 } tCE_MEM; 124 125 /* CE control blocks */ 126 typedef struct { 127 tCE_MEM mem; 128 tCE_CBACK* p_cback; 129 uint8_t* p_ndef; /* the memory starting from NDEF */ 130 uint16_t ndef_max; /* max size of p_ndef */ 131 uint16_t ndef_cur; /* current size of p_ndef */ 132 tNFC_RF_TECH tech; 133 } tCE_CB; 134 135 /* 136 ** CE Type 4 Tag Definition 137 */ 138 139 /* Max data size using a single ReadBinary. 2 bytes are for status bytes */ 140 #define CE_T4T_MAX_LE \ 141 (NFC_CE_POOL_BUF_SIZE - NFC_HDR_SIZE - NCI_MSG_OFFSET_SIZE - \ 142 NCI_DATA_HDR_SIZE - T4T_RSP_STATUS_WORDS_SIZE) 143 144 /* Max data size using a single UpdateBinary. 6 bytes are for CLA, INS, P1, P2, 145 * Lc */ 146 #define CE_T4T_MAX_LC \ 147 (NFC_CE_POOL_BUF_SIZE - NFC_HDR_SIZE - NCI_DATA_HDR_SIZE - \ 148 T4T_CMD_MAX_HDR_SIZE) 149 150 /***************************************************************************** 151 ** EXTERNAL FUNCTION DECLARATIONS 152 *****************************************************************************/ 153 154 /* Global NFC data */ 155 extern tCE_CB ce_cb; 156 157 extern void ce_init(void); 158 159 /* ce_t3t internal functions */ 160 void ce_t3t_init(void); 161 tNFC_STATUS ce_select_t3t(uint16_t system_code, 162 uint8_t nfcid2[NCI_RF_F_UID_LEN]); 163 164 /* ce_t4t internal functions */ 165 extern tNFC_STATUS ce_select_t4t(void); 166 extern void ce_t4t_process_timeout(TIMER_LIST_ENT* p_tle); 167 168 #endif /* CE_INT_H_ */ 169