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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 2003-2014 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 is the private interface file for NFA_RW
     22  *
     23  ******************************************************************************/
     24 #ifndef NFA_RW_INT_H
     25 #define NFA_RW_INT_H
     26 
     27 #include "nfa_api.h"
     28 #include "nfa_rw_api.h"
     29 #include "nfa_sys.h"
     30 #include "nfc_api.h"
     31 #include "rw_api.h"
     32 
     33 /*****************************************************************************
     34 **  Constants and data types
     35 *****************************************************************************/
     36 
     37 /* Interval for performing presence check (in ms) */
     38 #ifndef NFA_RW_PRESENCE_CHECK_INTERVAL
     39 #define NFA_RW_PRESENCE_CHECK_INTERVAL 750
     40 #endif
     41 
     42 /* TLV detection status */
     43 #define NFA_RW_TLV_DETECT_ST_OP_NOT_STARTED 0x00 /* No Tlv detected */
     44 /* Lock control tlv detected */
     45 #define NFA_RW_TLV_DETECT_ST_LOCK_TLV_OP_COMPLETE 0x01
     46 /* Memory control tlv detected */
     47 #define NFA_RW_TLV_DETECT_ST_MEM_TLV_OP_COMPLETE 0x02
     48 /* Both Lock and Memory control Tlvs are detected */
     49 #define NFA_RW_TLV_DETECT_ST_COMPLETE 0x03
     50 
     51 typedef uint8_t tNFA_RW_TLV_ST;
     52 
     53 /* RW events */
     54 enum {
     55   NFA_RW_OP_REQUEST_EVT = NFA_SYS_EVT_START(NFA_ID_RW),
     56   NFA_RW_ACTIVATE_NTF_EVT,
     57   NFA_RW_DEACTIVATE_NTF_EVT,
     58   NFA_RW_PRESENCE_CHECK_TICK_EVT,
     59   NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT,
     60   NFA_RW_MAX_EVT
     61 };
     62 
     63 /* BTA_RW operations */
     64 enum {
     65   NFA_RW_OP_DETECT_NDEF,
     66   NFA_RW_OP_READ_NDEF,
     67   NFA_RW_OP_WRITE_NDEF,
     68   NFA_RW_OP_PRESENCE_CHECK,
     69   NFA_RW_OP_FORMAT_TAG,
     70   NFA_RW_OP_SEND_RAW_FRAME,
     71 
     72   /* Exclusive Type-1,Type-2 tag operations */
     73   NFA_RW_OP_DETECT_LOCK_TLV,
     74   NFA_RW_OP_DETECT_MEM_TLV,
     75   NFA_RW_OP_SET_TAG_RO,
     76 
     77   /* Exclusive Type-1 tag operations */
     78   NFA_RW_OP_T1T_RID,
     79   NFA_RW_OP_T1T_RALL,
     80   NFA_RW_OP_T1T_READ,
     81   NFA_RW_OP_T1T_WRITE,
     82   NFA_RW_OP_T1T_RSEG,
     83   NFA_RW_OP_T1T_READ8,
     84   NFA_RW_OP_T1T_WRITE8,
     85 
     86   /* Exclusive Type-2 tag operations */
     87   NFA_RW_OP_T2T_READ,
     88   NFA_RW_OP_T2T_WRITE,
     89   NFA_RW_OP_T2T_SECTOR_SELECT,
     90 
     91   /* Exclusive Type-3 tag operations */
     92   NFA_RW_OP_T3T_READ,
     93   NFA_RW_OP_T3T_WRITE,
     94   NFA_RW_OP_T3T_GET_SYSTEM_CODES,
     95 
     96   /* Exclusive ISO 15693 tag operations */
     97   NFA_RW_OP_I93_INVENTORY,
     98   NFA_RW_OP_I93_STAY_QUIET,
     99   NFA_RW_OP_I93_READ_SINGLE_BLOCK,
    100   NFA_RW_OP_I93_WRITE_SINGLE_BLOCK,
    101   NFA_RW_OP_I93_LOCK_BLOCK,
    102   NFA_RW_OP_I93_READ_MULTI_BLOCK,
    103   NFA_RW_OP_I93_WRITE_MULTI_BLOCK,
    104   NFA_RW_OP_I93_SELECT,
    105   NFA_RW_OP_I93_RESET_TO_READY,
    106   NFA_RW_OP_I93_WRITE_AFI,
    107   NFA_RW_OP_I93_LOCK_AFI,
    108   NFA_RW_OP_I93_WRITE_DSFID,
    109   NFA_RW_OP_I93_LOCK_DSFID,
    110   NFA_RW_OP_I93_GET_SYS_INFO,
    111   NFA_RW_OP_I93_GET_MULTI_BLOCK_STATUS,
    112 
    113   NFA_RW_OP_MAX
    114 };
    115 typedef uint8_t tNFA_RW_OP;
    116 
    117 /* Enumeration of parameter structios for nfa_rw operations */
    118 
    119 /* NFA_RW_OP_WRITE_NDEF params */
    120 typedef struct {
    121   uint32_t len;
    122   uint8_t* p_data;
    123 } tNFA_RW_OP_PARAMS_WRITE_NDEF;
    124 
    125 /* NFA_RW_OP_SEND_RAW_FRAME params */
    126 typedef struct { NFC_HDR* p_data; } tNFA_RW_OP_PARAMS_SEND_RAW_FRAME;
    127 
    128 /* NFA_RW_OP_SET_TAG_RO params */
    129 typedef struct { bool b_hard_lock; } tNFA_RW_OP_PARAMS_CONFIG_READ_ONLY;
    130 
    131 /* NFA_RW_OP_T1T_READ params */
    132 typedef struct {
    133   uint8_t segment_number;
    134   uint8_t block_number;
    135   uint8_t index;
    136 } tNFA_RW_OP_PARAMS_T1T_READ;
    137 
    138 /* NFA_RW_OP_T1T_WRITE_E8,NFA_RW_OP_T1T_WRITE_NE8
    139    NFA_RW_OP_T1T_WRITE_E, NFA_RW_OP_T1T_WRITE_NE params  */
    140 typedef struct {
    141   bool b_erase;
    142   uint8_t block_number;
    143   uint8_t index;
    144   uint8_t p_block_data[8];
    145 } tNFA_RW_OP_PARAMS_T1T_WRITE;
    146 
    147 /* NFA_RW_OP_T2T_READ params */
    148 typedef struct { uint8_t block_number; } tNFA_RW_OP_PARAMS_T2T_READ;
    149 
    150 /* NFA_RW_OP_T2T_WRITE params */
    151 typedef struct {
    152   uint8_t block_number;
    153   uint8_t p_block_data[4];
    154 } tNFA_RW_OP_PARAMS_T2T_WRITE;
    155 
    156 /* NFA_RW_OP_T2T_SECTOR_SELECT params */
    157 typedef struct { uint8_t sector_number; } tNFA_RW_OP_PARAMS_T2T_SECTOR_SELECT;
    158 
    159 /* NFA_RW_OP_T3T_READ params */
    160 typedef struct {
    161   uint8_t num_blocks;
    162   tNFA_T3T_BLOCK_DESC* p_block_desc;
    163 } tNFA_RW_OP_PARAMS_T3T_READ;
    164 
    165 /* NFA_RW_OP_T3T_WRITE params */
    166 typedef struct {
    167   uint8_t num_blocks;
    168   tNFA_T3T_BLOCK_DESC* p_block_desc;
    169   uint8_t* p_block_data;
    170 } tNFA_RW_OP_PARAMS_T3T_WRITE;
    171 
    172 /* NFA_RW_OP_I93_XXX params */
    173 typedef struct {
    174   bool uid_present;
    175   uint8_t uid[I93_UID_BYTE_LEN];
    176   bool afi_present;
    177   uint8_t afi;
    178   uint8_t dsfid;
    179   uint16_t first_block_number;
    180   uint16_t number_blocks;
    181   uint8_t* p_data;
    182 } tNFA_RW_OP_PARAMS_I93_CMD;
    183 
    184 /* Union of params for all reader/writer operations */
    185 typedef union {
    186   /* params for NFA_RW_OP_WRITE_NDEF */
    187   tNFA_RW_OP_PARAMS_WRITE_NDEF write_ndef;
    188 
    189   /* params for NFA_RW_OP_SEND_RAW_FRAME */
    190   tNFA_RW_OP_PARAMS_SEND_RAW_FRAME send_raw_frame;
    191 
    192   /* params for NFA_RW_OP_SET_TAG_RO */
    193   tNFA_RW_OP_PARAMS_CONFIG_READ_ONLY set_readonly;
    194 
    195   /* params for NFA_RW_OP_T2T_READ and NFA_RW_OP_T1T_WRITE */
    196   tNFA_RW_OP_PARAMS_T1T_READ t1t_read;
    197   tNFA_RW_OP_PARAMS_T1T_WRITE t1t_write;
    198 
    199   /* params for NFA_RW_OP_T2T_READ,NFA_RW_OP_T2T_WRITE and
    200    * NFA_RW_OP_T2T_SECTOR_SELECT */
    201   tNFA_RW_OP_PARAMS_T2T_READ t2t_read;
    202   tNFA_RW_OP_PARAMS_T2T_WRITE t2t_write;
    203   tNFA_RW_OP_PARAMS_T2T_SECTOR_SELECT t2t_sector_select;
    204 
    205   /* params for NFA_RW_OP_T3T_READ and NFA_RW_OP_T3T_WRITE */
    206   tNFA_RW_OP_PARAMS_T3T_READ t3t_read;
    207   tNFA_RW_OP_PARAMS_T3T_WRITE t3t_write;
    208 
    209   /* params for NFA_RW_OP_PRESENCE_CHECK */
    210   tNFA_RW_PRES_CHK_OPTION option;
    211 
    212   /* params for ISO 15693 */
    213   tNFA_RW_OP_PARAMS_I93_CMD i93_cmd;
    214 
    215 } tNFA_RW_OP_PARAMS;
    216 
    217 /* data type for NFA_RW_op_req_EVT */
    218 typedef struct {
    219   NFC_HDR hdr;
    220   tNFA_RW_OP op; /* NFA RW operation */
    221   tNFA_RW_OP_PARAMS params;
    222 } tNFA_RW_OPERATION;
    223 
    224 /* data type for NFA_RW_ACTIVATE_NTF */
    225 typedef struct {
    226   NFC_HDR hdr;
    227   tNFC_ACTIVATE_DEVT* p_activate_params; /* Data from NFC_ACTIVATE_DEVT      */
    228   bool excl_rf_not_active;               /* TRUE if not in exclusive RF mode */
    229 } tNFA_RW_ACTIVATE_NTF;
    230 
    231 /* union of all data types */
    232 typedef union {
    233   /* GKI event buffer header */
    234   NFC_HDR hdr;
    235   tNFA_RW_OPERATION op_req;
    236   tNFA_RW_ACTIVATE_NTF activate_ntf;
    237 } tNFA_RW_MSG;
    238 
    239 /* NDEF detection status */
    240 enum {
    241   NFA_RW_NDEF_ST_UNKNOWN = 0, /* NDEF detection not performed yet */
    242   NFA_RW_NDEF_ST_TRUE,        /* Tag is NDEF */
    243   NFA_RW_NDEF_ST_FALSE        /* Tag is not NDEF */
    244 };
    245 typedef uint8_t tNFA_RW_NDEF_ST;
    246 
    247 /* flags for RW control block */
    248 /* Activation while not in exclusive RF mode                                */
    249 #define NFA_RW_FL_NOT_EXCL_RF_MODE 0x01
    250 /* Waiting for response from tag for auto-presence check                    */
    251 #define NFA_RW_FL_AUTO_PRESENCE_CHECK_BUSY 0x02
    252 /* Read only tag                                                            */
    253 #define NFA_RW_FL_TAG_IS_READONLY 0x04
    254 /* Busy retrieving additional tag information                               */
    255 #define NFA_RW_FL_ACTIVATION_NTF_PENDING 0x08
    256 /* Tag operation is in progress                                             */
    257 #define NFA_RW_FL_API_BUSY 0x10
    258 /* Tag is been activated                                                    */
    259 #define NFA_RW_FL_ACTIVATED 0x20
    260 /* NDEF DETECTed OK                                                         */
    261 #define NFA_RW_FL_NDEF_OK 0x40
    262 
    263 /* NFA RW control block */
    264 typedef struct {
    265   tNFA_RW_OP cur_op; /* Current operation */
    266 
    267   TIMER_LIST_ENT tle; /* list entry for nfa_rw timer */
    268   tNFA_RW_MSG*
    269       p_pending_msg; /* Pending API (if busy performing presence check) */
    270 
    271   /* Tag info */
    272   tNFC_PROTOCOL protocol;
    273   tNFC_INTF_TYPE intf_type;
    274   uint8_t pa_sel_res;
    275   tNFC_RF_TECH_N_MODE activated_tech_mode; /* activated technology and mode */
    276 
    277   bool b_hard_lock;
    278 
    279   tNFA_RW_MSG*
    280       p_buffer_rw_msg; /* Buffer to hold incoming cmd while reading tag id */
    281 
    282   /* TLV info */
    283   tNFA_RW_TLV_ST tlv_st; /* TLV detection status */
    284 
    285   /* NDEF info */
    286   tNFA_RW_NDEF_ST ndef_st; /* NDEF detection status */
    287   uint32_t ndef_max_size;  /* max number of bytes available for NDEF data */
    288   uint32_t ndef_cur_size;  /* current size of stored NDEF data (in bytes) */
    289   uint8_t* p_ndef_buf;
    290   uint32_t ndef_rd_offset; /* current read-offset of incoming NDEF data */
    291 
    292   /* Current NDEF Write info */
    293   uint8_t* p_ndef_wr_buf; /* Pointer to NDEF data being written */
    294   uint32_t ndef_wr_len;   /* Length of NDEF data being written */
    295 
    296   /* Reactivating type 2 tag after NACK rsp */
    297   tRW_EVENT halt_event; /* Event ID from stack after NACK response */
    298   tRW_DATA rw_data;     /* Event Data from stack after NACK response */
    299   bool skip_dyn_locks;  /* To skip reading dynamic locks during NDEF Detect */
    300 
    301   /* Flags (see defintions for NFA_RW_FL_* ) */
    302   uint8_t flags;
    303 
    304   /* ISO 15693 tag memory information */
    305   uint16_t i93_afi_location;
    306   uint8_t i93_dsfid;
    307   uint8_t i93_block_size;
    308   uint16_t i93_num_block;
    309   uint8_t i93_uid[I93_UID_BYTE_LEN];
    310 } tNFA_RW_CB;
    311 extern tNFA_RW_CB nfa_rw_cb;
    312 
    313 /* type definition for action functions */
    314 typedef bool (*tNFA_RW_ACTION)(tNFA_RW_MSG* p_data);
    315 
    316 /* Internal nfa_rw function prototypes */
    317 extern void nfa_rw_stop_presence_check_timer(void);
    318 
    319 /* Action function prototypes */
    320 extern bool nfa_rw_handle_op_req(tNFA_RW_MSG* p_data);
    321 extern bool nfa_rw_activate_ntf(tNFA_RW_MSG* p_data);
    322 extern bool nfa_rw_deactivate_ntf(tNFA_RW_MSG* p_data);
    323 extern bool nfa_rw_presence_check_tick(tNFA_RW_MSG* p_data);
    324 extern bool nfa_rw_presence_check_timeout(tNFA_RW_MSG* p_data);
    325 extern void nfa_rw_handle_sleep_wakeup_rsp(tNFC_STATUS status);
    326 extern void nfa_rw_handle_presence_check_rsp(tNFC_STATUS status);
    327 extern void nfa_rw_command_complete(void);
    328 extern bool nfa_rw_handle_event(NFC_HDR* p_msg);
    329 
    330 extern void nfa_rw_free_ndef_rx_buf(void);
    331 extern void nfa_rw_sys_disable(void);
    332 
    333 #endif /* NFA_DM_INT_H */
    334