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      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  *
     22  *  this file contains the main NFC Upper Layer internal definitions and
     23  *  functions.
     24  *
     25  ******************************************************************************/
     26 
     27 #ifndef NFC_INT_H_
     28 #define NFC_INT_H_
     29 
     30 #include "nfc_target.h"
     31 #include "gki.h"
     32 #include "nci_defs.h"
     33 #include "nfc_api.h"
     34 #include "btu_api.h"
     35 
     36 #ifdef __cplusplus
     37 extern "C" {
     38 #endif
     39 
     40 /****************************************************************************
     41 ** Internal NFC constants and definitions
     42 ****************************************************************************/
     43 
     44 /****************************************************************************
     45 ** NFC_TASK definitions
     46 ****************************************************************************/
     47 
     48 /* NFC_TASK event masks */
     49 #define NFC_TASK_EVT_TRANSPORT_READY        EVENT_MASK (APPL_EVT_0)
     50 
     51 /* NFC Timer events */
     52 #define NFC_TTYPE_NCI_WAIT_RSP              0
     53 #define NFC_TTYPE_WAIT_2_DEACTIVATE         1
     54 
     55 #define NFC_TTYPE_LLCP_LINK_MANAGER         100
     56 #define NFC_TTYPE_LLCP_LINK_INACT           101
     57 #define NFC_TTYPE_LLCP_DATA_LINK            102
     58 #define NFC_TTYPE_LLCP_DELAY_FIRST_PDU      103
     59 #define NFC_TTYPE_RW_T1T_RESPONSE           104
     60 #define NFC_TTYPE_RW_T2T_RESPONSE           105
     61 #define NFC_TTYPE_RW_T3T_RESPONSE           106
     62 #define NFC_TTYPE_RW_T4T_RESPONSE           107
     63 #define NFC_TTYPE_RW_I93_RESPONSE           108
     64 #define NFC_TTYPE_CE_T4T_UPDATE             109
     65 #define NFC_TTYPE_VS_BASE                   200
     66 
     67 
     68 /* NFC Task event messages */
     69 
     70 enum
     71 {
     72     NFC_STATE_NONE,                 /* not start up yet                         */
     73     NFC_STATE_W4_HAL_OPEN,          /* waiting for HAL_NFC_OPEN_CPLT_EVT        */
     74     NFC_STATE_CORE_INIT,            /* sending CORE_RESET and CORE_INIT         */
     75     NFC_STATE_W4_POST_INIT_CPLT,    /* waiting for HAL_NFC_POST_INIT_CPLT_EVT   */
     76     NFC_STATE_IDLE,                 /* normal operation (discovery state)       */
     77     NFC_STATE_OPEN,                 /* NFC link is activated                    */
     78     NFC_STATE_CLOSING,              /* de-activating                            */
     79     NFC_STATE_W4_HAL_CLOSE,         /* waiting for HAL_NFC_POST_INIT_CPLT_EVT   */
     80     NFC_STATE_NFCC_POWER_OFF_SLEEP  /* NFCC is power-off sleep mode             */
     81 };
     82 typedef UINT8 tNFC_STATE;
     83 
     84 /* NFC control block flags */
     85 #define NFC_FL_DEACTIVATING             0x0001  /* NFC_Deactivate () is called and the NCI cmd is not sent   */
     86 #define NFC_FL_RESTARTING               0x0002  /* restarting NFCC after PowerOffSleep          */
     87 #define NFC_FL_POWER_OFF_SLEEP          0x0004  /* enterning power off sleep mode               */
     88 #define NFC_FL_POWER_CYCLE_NFCC         0x0008  /* Power cycle NFCC                             */
     89 #define NFC_FL_CONTROL_REQUESTED        0x0010  /* HAL requested control on NCI command window  */
     90 #define NFC_FL_CONTROL_GRANTED          0x0020  /* NCI command window is on the HAL side        */
     91 #define NFC_FL_DISCOVER_PENDING         0x0040  /* NCI command window is on the HAL side        */
     92 #define NFC_FL_HAL_REQUESTED            0x0080  /* NFC_FL_CONTROL_REQUESTED on HAL request      */
     93 
     94 #define NFC_PEND_CONN_ID               0xFE
     95 #define NFC_CONN_ID_INT_MASK           0xF0
     96 #define NFC_CONN_ID_ID_MASK            NCI_CID_MASK
     97 #define NFC_CONN_NO_FC                 0xFF /* set num_buff to this for no flow control */
     98 #define NFC_NCI_CONN_NO_FC             0xFF
     99 
    100 #if (NFC_RW_ONLY == FALSE)
    101 /* only allow the entries that the NFCC can support */
    102 #define NFC_CHECK_MAX_CONN()    {if (max > nfc_cb.max_conn) max = nfc_cb.max_conn;}
    103 #else
    104 #define NFC_CHECK_MAX_CONN()
    105 #endif
    106 
    107 typedef struct
    108 {
    109     tNFC_CONN_CBACK *p_cback;   /* the callback function to receive the data        */
    110     BUFFER_Q    tx_q;           /* transmit queue                                   */
    111     BUFFER_Q    rx_q;           /* receive queue                                    */
    112     UINT8       id;             /* NFCEE ID or RF Discovery ID or NFC_TEST_ID       */
    113     UINT8       act_protocol;   /* the active protocol on this logical connection   */
    114     UINT8       conn_id;        /* the connection id assigned by NFCC for this conn */
    115     UINT8       buff_size;      /* the max buffer size for this connection.     .   */
    116     UINT8       num_buff;       /* num of buffers left to send on this connection   */
    117     UINT8       init_credits;   /* initial num of buffer credits                    */
    118 } tNFC_CONN_CB;
    119 
    120 /* This data type is for NFC task to send a NCI VS command to NCIT task */
    121 typedef struct
    122 {
    123     BT_HDR          bt_hdr;     /* the NCI command          */
    124     tNFC_VS_CBACK   *p_cback;   /* the callback function to receive RSP   */
    125 } tNFC_NCI_VS_MSG;
    126 
    127 /* This data type is for HAL event */
    128 typedef struct
    129 {
    130     BT_HDR          hdr;
    131     UINT8           hal_evt;    /* HAL event code  */
    132     UINT8           status;     /* tHAL_NFC_STATUS */
    133 } tNFC_HAL_EVT_MSG;
    134 
    135 #define NFC_RECEIVE_MSGS_OFFSET     (10) /* callback function pointer(8; use 8 to be safe + NFC_SAVED_CMD_SIZE(2) */
    136 
    137 /* NFCC power state change pending callback */
    138 typedef void (tNFC_PWR_ST_CBACK) (void);
    139 #define NFC_SAVED_HDR_SIZE          (2)
    140 /* data Reassembly error (in BT_HDR.layer_specific) */
    141 #define NFC_RAS_TOO_BIG             0x08
    142 #define NFC_RAS_FRAGMENTED          0x01
    143 
    144 /* NCI command buffer contains a VSC (in BT_HDR.layer_specific) */
    145 #define NFC_WAIT_RSP_VSC            0x01
    146 
    147 /* NFC control blocks */
    148 typedef struct
    149 {
    150     UINT16              flags;                      /* NFC control block flags - NFC_FL_* */
    151     tNFC_CONN_CB        conn_cb[NCI_MAX_CONN_CBS];
    152     UINT8               conn_id[NFC_MAX_CONN_ID+1]; /* index: conn_id; conn_id[]: index(1 based) to conn_cb[] */
    153     tNFC_DISCOVER_CBACK *p_discv_cback;
    154     tNFC_RESPONSE_CBACK *p_resp_cback;
    155     tNFC_TEST_CBACK     *p_test_cback;
    156     tNFC_VS_CBACK       *p_vs_cb[NFC_NUM_VS_CBACKS];/* Register for vendor specific events  */
    157 
    158 #if (NFC_RW_ONLY == FALSE)
    159     /* NFCC information at init rsp */
    160     UINT32              nci_features;               /* the NCI features supported by NFCC */
    161     UINT16              max_ce_table;               /* the max routing table size       */
    162     UINT8               max_conn;                   /* the num of connections supported by NFCC */
    163 #endif
    164     UINT8               nci_ctrl_size;              /* Max Control Packet Payload Size */
    165 
    166     const tNCI_DISCOVER_MAPS  *p_disc_maps;         /* NCI RF Discovery interface mapping */
    167     UINT8               vs_interface[NFC_NFCC_MAX_NUM_VS_INTERFACE];  /* the NCI VS interfaces of NFCC    */
    168     UINT16              nci_interfaces;             /* the NCI interfaces of NFCC       */
    169     UINT8               num_disc_maps;              /* number of RF Discovery interface mappings */
    170     void               *p_disc_pending;            /* the parameters associated with pending NFC_DiscoveryStart */
    171 
    172     /* NFC_TASK timer management */
    173     TIMER_LIST_Q        timer_queue;                /* 1-sec timer event queue */
    174     TIMER_LIST_Q        quick_timer_queue;
    175 
    176     TIMER_LIST_ENT      deactivate_timer;           /* Timer to wait for deactivation */
    177 
    178     tNFC_STATE          nfc_state;
    179     BOOLEAN             reassembly;         /* Reassemble fragmented data pkt */
    180     UINT8               trace_level;
    181     UINT8               last_hdr[NFC_SAVED_HDR_SIZE];/* part of last NCI command header */
    182     UINT8               last_cmd[NFC_SAVED_CMD_SIZE];/* part of last NCI command payload */
    183     void                *p_vsc_cback;       /* the callback function for last VSC command */
    184     BUFFER_Q            nci_cmd_xmit_q;     /* NCI command queue */
    185     TIMER_LIST_ENT      nci_wait_rsp_timer; /* Timer for waiting for nci command response */
    186     UINT16              nci_wait_rsp_tout;  /* NCI command timeout (in ms) */
    187     UINT8               nci_wait_rsp;       /* layer_specific for last NCI message */
    188 
    189     UINT8               nci_cmd_window;     /* Number of commands the controller can accecpt without waiting for response */
    190 
    191     BT_HDR              *p_nci_init_rsp;    /* holding INIT_RSP until receiving HAL_NFC_POST_INIT_CPLT_EVT */
    192     tHAL_NFC_ENTRY      *p_hal;
    193 
    194 } tNFC_CB;
    195 
    196 
    197 /*****************************************************************************
    198 **  EXTERNAL FUNCTION DECLARATIONS
    199 *****************************************************************************/
    200 
    201 /* Global NFC data */
    202 #if NFC_DYNAMIC_MEMORY == FALSE
    203 NFC_API extern tNFC_CB  nfc_cb;
    204 #else
    205 NFC_API extern tNFC_CB *nfc_cb_ptr;
    206 #define nfc_cb (*nfc_cb_ptr)
    207 #endif
    208 
    209 /****************************************************************************
    210 ** Internal nfc functions
    211 ****************************************************************************/
    212 
    213 NFC_API extern void nfc_init(void);
    214 
    215 /* from nfc_utils.c */
    216 NFC_API extern tNFC_CONN_CB * nfc_alloc_conn_cb ( tNFC_CONN_CBACK *p_cback);
    217 NFC_API extern tNFC_CONN_CB * nfc_find_conn_cb_by_conn_id (UINT8 conn_id);
    218 NFC_API extern tNFC_CONN_CB * nfc_find_conn_cb_by_handle (UINT8 target_handle);
    219 NFC_API extern void nfc_set_conn_id (tNFC_CONN_CB * p_cb, UINT8 conn_id);
    220 NFC_API extern void nfc_free_conn_cb (tNFC_CONN_CB *p_cb);
    221 NFC_API extern void nfc_reset_all_conn_cbs (void);
    222 NFC_API extern void nfc_data_event (tNFC_CONN_CB * p_cb);
    223 
    224 void nfc_ncif_send (BT_HDR *p_buf, BOOLEAN is_cmd);
    225 extern UINT8 nfc_ncif_send_data (tNFC_CONN_CB *p_cb, BT_HDR *p_data);
    226 NFC_API extern void nfc_ncif_cmd_timeout (void);
    227 NFC_API extern void nfc_wait_2_deactivate_timeout (void);
    228 
    229 NFC_API extern BOOLEAN nfc_ncif_process_event (BT_HDR *p_msg);
    230 NFC_API extern void nfc_ncif_check_cmd_queue (BT_HDR *p_buf);
    231 NFC_API extern void nfc_ncif_send_cmd (BT_HDR *p_buf);
    232 NFC_API extern void nfc_ncif_proc_discover_ntf (UINT8 *p, UINT16 plen);
    233 NFC_API extern void nfc_ncif_rf_management_status (tNFC_DISCOVER_EVT event, UINT8 status);
    234 NFC_API extern void nfc_ncif_set_config_status (UINT8 *p, UINT8 len);
    235 NFC_API extern void nfc_ncif_event_status (tNFC_RESPONSE_EVT event, UINT8 status);
    236 NFC_API extern void nfc_ncif_error_status (UINT8 conn_id, UINT8 status);
    237 NFC_API extern void nfc_ncif_proc_credits(UINT8 *p, UINT16 plen);
    238 NFC_API extern void nfc_ncif_proc_activate (UINT8 *p, UINT8 len);
    239 NFC_API extern void nfc_ncif_proc_deactivate (UINT8 status, UINT8 deact_type, BOOLEAN is_ntf);
    240 #if ((NFC_NFCEE_INCLUDED == TRUE) && (NFC_RW_ONLY == FALSE))
    241 NFC_API extern void nfc_ncif_proc_ee_action (UINT8 *p, UINT16 plen);
    242 NFC_API extern void nfc_ncif_proc_ee_discover_req (UINT8 *p, UINT16 plen);
    243 NFC_API extern void nfc_ncif_proc_get_routing (UINT8 *p, UINT8 len);
    244 #endif
    245 NFC_API extern void nfc_ncif_proc_conn_create_rsp (UINT8 *p, UINT16 plen, UINT8 dest_type);
    246 NFC_API extern void nfc_ncif_report_conn_close_evt (UINT8 conn_id, tNFC_STATUS status);
    247 NFC_API extern void nfc_ncif_proc_t3t_polling_ntf (UINT8 *p, UINT16 plen);
    248 NFC_API extern void nfc_ncif_proc_reset_rsp (UINT8 *p, BOOLEAN is_ntf);
    249 NFC_API extern void nfc_ncif_proc_init_rsp (BT_HDR *p_msg);
    250 NFC_API extern void nfc_ncif_proc_get_config_rsp (BT_HDR *p_msg);
    251 NFC_API extern void nfc_ncif_proc_data (BT_HDR *p_msg);
    252 
    253 #if (NFC_RW_ONLY == FALSE)
    254 NFC_API extern void nfc_ncif_proc_rf_field_ntf (UINT8 rf_status);
    255 #else
    256 #define nfc_ncif_proc_rf_field_ntf(rf_status)
    257 #endif
    258 
    259 /* From nfc_task.c */
    260 NFC_API extern UINT32 nfc_task (UINT32 param);
    261 void nfc_task_shutdown_nfcc (void);
    262 
    263 /* From nfc_main.c */
    264 void nfc_enabled (tNFC_STATUS nfc_status, BT_HDR *p_init_rsp_msg);
    265 void nfc_set_state (tNFC_STATE nfc_state);
    266 void nfc_main_flush_cmd_queue (void);
    267 void nfc_gen_cleanup (void);
    268 void nfc_main_handle_hal_evt (tNFC_HAL_EVT_MSG *p_msg);
    269 
    270 /* Timer functions */
    271 void nfc_start_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout);
    272 UINT32 nfc_remaining_time (TIMER_LIST_ENT *p_tle);
    273 void nfc_stop_timer (TIMER_LIST_ENT *p_tle);
    274 
    275 void nfc_start_quick_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout);
    276 void nfc_stop_quick_timer (TIMER_LIST_ENT *p_tle);
    277 void nfc_process_quick_timer_evt (void);
    278 
    279 
    280 #ifdef __cplusplus
    281 }
    282 #endif
    283 
    284 #endif /* NFC_INT_H_ */
    285