/****************************************************************************** * * Copyright (C) 2003-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This is the private file for the file transfer client (FTC). * ******************************************************************************/ #ifndef BTA_GATTC_INT_H #define BTA_GATTC_INT_H #include "bt_target.h" #include "bta_sys.h" #include "bta_gatt_api.h" #include "bta_gattc_ci.h" #include "bta_gattc_co.h" #include "fixed_queue.h" #include "mutex.h" /***************************************************************************** ** Constants and data types *****************************************************************************/ enum { BTA_GATTC_API_OPEN_EVT = BTA_SYS_EVT_START(BTA_ID_GATTC), BTA_GATTC_INT_OPEN_FAIL_EVT, BTA_GATTC_API_CANCEL_OPEN_EVT, BTA_GATTC_INT_CANCEL_OPEN_OK_EVT, BTA_GATTC_API_READ_EVT, BTA_GATTC_API_WRITE_EVT, BTA_GATTC_API_EXEC_EVT, BTA_GATTC_API_CFG_MTU_EVT, BTA_GATTC_API_CLOSE_EVT, BTA_GATTC_API_SEARCH_EVT, BTA_GATTC_API_CONFIRM_EVT, BTA_GATTC_API_READ_MULTI_EVT, BTA_GATTC_API_REFRESH_EVT, BTA_GATTC_INT_CONN_EVT, BTA_GATTC_INT_DISCOVER_EVT, BTA_GATTC_DISCOVER_CMPL_EVT, BTA_GATTC_OP_CMPL_EVT, BTA_GATTC_INT_DISCONN_EVT, BTA_GATTC_INT_START_IF_EVT, BTA_GATTC_API_REG_EVT, BTA_GATTC_API_DEREG_EVT, BTA_GATTC_API_LISTEN_EVT, BTA_GATTC_API_BROADCAST_EVT, BTA_GATTC_API_DISABLE_EVT, BTA_GATTC_ENC_CMPL_EVT }; typedef UINT16 tBTA_GATTC_INT_EVT; #define BTA_GATTC_SERVICE_CHANGED_LEN 4 /* max client application GATTC can support */ #ifndef BTA_GATTC_CL_MAX #if (GATT_MAX_PHY_CHANNEL > 3) #define BTA_GATTC_CL_MAX GATT_MAX_PHY_CHANNEL #else #define BTA_GATTC_CL_MAX 3 // The origin value is 10 #endif #endif /* max known devices GATTC can support */ #ifndef BTA_GATTC_KNOWN_SR_MAX #if (GATT_MAX_PHY_CHANNEL > 3) #define BTA_GATTC_KNOWN_SR_MAX GATT_MAX_PHY_CHANNEL #else #define BTA_GATTC_KNOWN_SR_MAX 3 // The origin value is 10 #endif #endif #define BTA_GATTC_CONN_MAX GATT_MAX_PHY_CHANNEL #ifndef BTA_GATTC_CLCB_MAX #define BTA_GATTC_CLCB_MAX GATT_CL_MAX_LCB #endif #define BTA_GATTC_WRITE_PREPARE GATT_WRITE_PREPARE #define BTA_GATTC_INVALID_HANDLE 0 /* internal strucutre for GATTC register API */ typedef struct { BT_HDR hdr; tBT_UUID app_uuid; tBTA_GATTC_CBACK *p_cback; } tBTA_GATTC_API_REG; typedef struct { BT_HDR hdr; tBTA_GATTC_IF client_if; } tBTA_GATTC_INT_START_IF; typedef tBTA_GATTC_INT_START_IF tBTA_GATTC_API_DEREG; typedef tBTA_GATTC_INT_START_IF tBTA_GATTC_INT_DEREG; typedef struct { BT_HDR hdr; BD_ADDR remote_bda; tBTA_GATTC_IF client_if; BOOLEAN is_direct; tBTA_TRANSPORT transport; } tBTA_GATTC_API_OPEN; typedef tBTA_GATTC_API_OPEN tBTA_GATTC_API_CANCEL_OPEN; typedef struct { BT_HDR hdr; tBTA_GATT_AUTH_REQ auth_req; UINT16 handle; tBTA_GATTC_EVT cmpl_evt; } tBTA_GATTC_API_READ; typedef struct { BT_HDR hdr; tBTA_GATT_AUTH_REQ auth_req; UINT16 handle; tBTA_GATTC_EVT cmpl_evt; tBTA_GATTC_WRITE_TYPE write_type; UINT16 offset; UINT16 len; UINT8 *p_value; } tBTA_GATTC_API_WRITE; typedef struct { BT_HDR hdr; BOOLEAN is_execute; } tBTA_GATTC_API_EXEC; typedef struct { BT_HDR hdr; UINT16 handle; } tBTA_GATTC_API_CONFIRM; typedef tGATT_CL_COMPLETE tBTA_GATTC_CMPL; typedef struct { BT_HDR hdr; UINT8 op_code; tGATT_STATUS status; tBTA_GATTC_CMPL *p_cmpl; } tBTA_GATTC_OP_CMPL; typedef struct { BT_HDR hdr; tBT_UUID *p_srvc_uuid; } tBTA_GATTC_API_SEARCH; typedef struct { BT_HDR hdr; tBTA_GATT_AUTH_REQ auth_req; UINT8 num_attr; UINT16 handles[GATT_MAX_READ_MULTI_HANDLES]; tBTA_GATTC_EVT cmpl_evt; }tBTA_GATTC_API_READ_MULTI; typedef struct { BT_HDR hdr; BD_ADDR_PTR remote_bda; tBTA_GATTC_IF client_if; BOOLEAN start; } tBTA_GATTC_API_LISTEN; typedef struct { BT_HDR hdr; } tBTA_GATTC_API_CFG_MTU; typedef struct { BT_HDR hdr; BD_ADDR remote_bda; tBTA_GATTC_IF client_if; UINT8 role; tBT_TRANSPORT transport; tGATT_DISCONN_REASON reason; } tBTA_GATTC_INT_CONN; typedef struct { BT_HDR hdr; BD_ADDR remote_bda; tBTA_GATTC_IF client_if; } tBTA_GATTC_ENC_CMPL; typedef union { BT_HDR hdr; tBTA_GATTC_API_REG api_reg; tBTA_GATTC_API_DEREG api_dereg; tBTA_GATTC_API_OPEN api_conn; tBTA_GATTC_API_CANCEL_OPEN api_cancel_conn; tBTA_GATTC_API_READ api_read; tBTA_GATTC_API_SEARCH api_search; tBTA_GATTC_API_WRITE api_write; tBTA_GATTC_API_CONFIRM api_confirm; tBTA_GATTC_API_EXEC api_exec; tBTA_GATTC_API_READ_MULTI api_read_multi; tBTA_GATTC_API_CFG_MTU api_mtu; tBTA_GATTC_OP_CMPL op_cmpl; tBTA_GATTC_INT_CONN int_conn; tBTA_GATTC_ENC_CMPL enc_cmpl; tBTA_GATTC_INT_START_IF int_start_if; tBTA_GATTC_INT_DEREG int_dereg; /* if peripheral role is supported */ tBTA_GATTC_API_LISTEN api_listen; } tBTA_GATTC_DATA; /* GATT server cache on the client */ typedef struct { tBT_UUID uuid; UINT16 s_handle; UINT16 e_handle; // this field is set only for characteristic UINT16 char_decl_handle; BOOLEAN is_primary; tBTA_GATT_CHAR_PROP property; } tBTA_GATTC_ATTR_REC; #define BTA_GATTC_MAX_CACHE_CHAR 40 #define BTA_GATTC_ATTR_LIST_SIZE (BTA_GATTC_MAX_CACHE_CHAR * sizeof(tBTA_GATTC_ATTR_REC)) #ifndef BTA_GATTC_CACHE_SRVR_SIZE #define BTA_GATTC_CACHE_SRVR_SIZE 600 #endif enum { BTA_GATTC_IDLE_ST = 0, /* Idle */ BTA_GATTC_W4_CONN_ST, /* Wait for connection - (optional) */ BTA_GATTC_CONN_ST, /* connected state */ BTA_GATTC_DISCOVER_ST /* discover is in progress */ }; typedef UINT8 tBTA_GATTC_STATE; typedef struct { BOOLEAN in_use; BD_ADDR server_bda; BOOLEAN connected; #define BTA_GATTC_SERV_IDLE 0 #define BTA_GATTC_SERV_LOAD 1 #define BTA_GATTC_SERV_SAVE 2 #define BTA_GATTC_SERV_DISC 3 #define BTA_GATTC_SERV_DISC_ACT 4 UINT8 state; list_t *p_srvc_cache; /* list of tBTA_GATTC_SERVICE */ UINT8 update_count; /* indication received */ UINT8 num_clcb; /* number of associated CLCB */ tBTA_GATTC_ATTR_REC *p_srvc_list; UINT8 cur_srvc_idx; UINT8 cur_char_idx; UINT8 next_avail_idx; UINT8 total_srvc; UINT8 total_char; UINT16 total_attr; UINT8 srvc_hdl_chg; /* service handle change indication pending */ UINT16 attr_index; /* cahce NV saving/loading attribute index */ UINT16 mtu; } tBTA_GATTC_SERV; #ifndef BTA_GATTC_NOTIF_REG_MAX #define BTA_GATTC_NOTIF_REG_MAX 7//15 #endif typedef struct { BOOLEAN in_use; BD_ADDR remote_bda; UINT16 handle; }tBTA_GATTC_NOTIF_REG; typedef struct { tBTA_GATTC_CBACK *p_cback; BOOLEAN in_use; tBTA_GATTC_IF client_if; /* client interface with BTE stack for this application */ UINT8 num_clcb; /* number of associated CLCB */ BOOLEAN dereg_pending; tBT_UUID app_uuid; tBTA_GATTC_NOTIF_REG notif_reg[BTA_GATTC_NOTIF_REG_MAX]; } tBTA_GATTC_RCB; /* client channel is a mapping between a BTA client(cl_id) and a remote BD address */ typedef struct { UINT16 bta_conn_id; /* client channel ID, unique for clcb */ BD_ADDR bda; tBTA_TRANSPORT transport; /* channel transport */ tBTA_GATTC_RCB *p_rcb; /* pointer to the registration CB */ tBTA_GATTC_SERV *p_srcb; /* server cache CB */ tBTA_GATTC_DATA *p_q_cmd; /* command in queue waiting for execution */ list_t *p_cmd_list; /* The list to store the command to be sent */ BOOLEAN is_full; /* The gattc command queue is full or not */ #define BTA_GATTC_NO_SCHEDULE 0 #define BTA_GATTC_DISC_WAITING 0x01 #define BTA_GATTC_REQ_WAITING 0x10 UINT8 auto_update; /* auto update is waiting */ BOOLEAN disc_active; BOOLEAN in_use; tBTA_GATTC_STATE state; tBTA_GATT_STATUS status; UINT16 reason; } tBTA_GATTC_CLCB; /* background connection tracking information */ #if GATT_MAX_APPS <= 8 typedef UINT8 tBTA_GATTC_CIF_MASK ; #elif GATT_MAX_APPS <= 16 typedef UINT16 tBTA_GATTC_CIF_MASK; #elif GATT_MAX_APPS <= 32 typedef UINT32 tBTA_GATTC_CIF_MASK; #endif typedef struct { BOOLEAN in_use; BD_ADDR remote_bda; tBTA_GATTC_CIF_MASK cif_mask; tBTA_GATTC_CIF_MASK cif_adv_mask; } tBTA_GATTC_BG_TCK; typedef struct { BOOLEAN in_use; BD_ADDR remote_bda; TIMER_LIST_ENT service_change_ccc_timer; /* wait for discovering remote device's service change ccc handle */ BOOLEAN ccc_timer_used; /* service_change_ccc_timer started */ BOOLEAN service_change_ccc_written; /* has written remote device's service change ccc */ } tBTA_GATTC_CONN; enum { BTA_GATTC_STATE_DISABLED, BTA_GATTC_STATE_ENABLING, BTA_GATTC_STATE_ENABLED, BTA_GATTC_STATE_DISABLING }; typedef struct { UINT8 state; osi_mutex_t write_ccc_mutex; tBTA_GATTC_CONN conn_track[BTA_GATTC_CONN_MAX]; tBTA_GATTC_BG_TCK bg_track[BTA_GATTC_KNOWN_SR_MAX]; tBTA_GATTC_RCB cl_rcb[BTA_GATTC_CL_MAX]; tBTA_GATTC_CLCB clcb[BTA_GATTC_CLCB_MAX]; tBTA_GATTC_SERV known_server[BTA_GATTC_KNOWN_SR_MAX]; }tBTA_GATTC_CB; typedef enum { SERVICE_CHANGE_CCC_WRITTEN_SUCCESS = 0, SERVICE_CHANGE_CACHE_NOT_FOUND, SERVICE_CHANGE_SERVICE_NOT_FOUND, SERVICE_CHANGE_CHAR_NOT_FOUND, SERVICE_CHANGE_CCC_NOT_FOUND, SERVICE_CHANGE_WRITE_CCC_FAILED }tBTA_GATTC_FIND_SERVICE_CB; /***************************************************************************** ** Global data *****************************************************************************/ /* GATTC control block */ #if BTA_DYNAMIC_MEMORY == FALSE extern tBTA_GATTC_CB bta_gattc_cb; #else extern tBTA_GATTC_CB *bta_gattc_cb_ptr; #define bta_gattc_cb (*bta_gattc_cb_ptr) #endif /***************************************************************************** ** Function prototypes *****************************************************************************/ extern BOOLEAN bta_gattc_hdl_event(BT_HDR *p_msg); extern BOOLEAN bta_gattc_sm_execute(tBTA_GATTC_CLCB *p_clcb, UINT16 event, tBTA_GATTC_DATA *p_data); /* function processed outside SM */ extern void bta_gattc_disable(tBTA_GATTC_CB *p_cb); extern void bta_gattc_register(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_start_if(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_process_api_open (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); extern void bta_gattc_process_api_open_cancel (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); extern void bta_gattc_deregister(tBTA_GATTC_CB *p_cb, tBTA_GATTC_RCB *p_clreg); extern void bta_gattc_process_enc_cmpl(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); /* function within state machine */ extern void bta_gattc_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_open_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_cancel_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_cancel_open_ok(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_cancel_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_conn(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_conncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_disconncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_close_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_disc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_start_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_disc_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_read(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_write(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_q_cmd(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_free_command_data(tBTA_GATTC_CLCB *p_clcb); extern void bta_gattc_search(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_confirm(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_execute(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_read_multi(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_ci_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_ci_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_ignore_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern void bta_gattc_restart_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_msg); extern void bta_gattc_init_bk_conn(tBTA_GATTC_API_OPEN *p_data, tBTA_GATTC_RCB *p_clreg); extern void bta_gattc_cancel_bk_conn(tBTA_GATTC_API_CANCEL_OPEN *p_data); extern void bta_gattc_send_open_cback( tBTA_GATTC_RCB *p_clreg, tBTA_GATT_STATUS status, BD_ADDR remote_bda, UINT16 conn_id, tBTA_TRANSPORT transport, UINT16 mtu); extern void bta_gattc_send_connect_cback( tBTA_GATTC_RCB *p_clreg, BD_ADDR remote_bda, UINT16 conn_id); extern void bta_gattc_send_disconnect_cback( tBTA_GATTC_RCB *p_clreg, tGATT_DISCONN_REASON reason, BD_ADDR remote_bda, UINT16 conn_id); extern void bta_gattc_process_api_refresh(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); extern void bta_gattc_cfg_mtu(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); #if BLE_INCLUDED == TRUE extern void bta_gattc_listen(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); extern void bta_gattc_broadcast(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg); #endif /* utility functions */ extern tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_cif (UINT8 client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport); extern tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_conn_id (UINT16 conn_id); extern tBTA_GATTC_CLCB *bta_gattc_clcb_alloc(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport); extern void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB *p_clcb); extern tBTA_GATTC_CLCB *bta_gattc_find_alloc_clcb(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport); extern tBTA_GATTC_RCB *bta_gattc_cl_get_regcb(UINT8 client_if); extern tBTA_GATTC_SERV *bta_gattc_find_srcb(BD_ADDR bda); extern tBTA_GATTC_SERV *bta_gattc_srcb_alloc(BD_ADDR bda); extern tBTA_GATTC_SERV *bta_gattc_find_scb_by_cid (UINT16 conn_id); extern tBTA_GATTC_CLCB *bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA *p_msg); extern tBTA_GATTC_CLCB *bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA *p_msg); extern BOOLEAN bta_gattc_enqueue(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data); extern BOOLEAN bta_gattc_uuid_compare (const tBT_UUID *p_src, const tBT_UUID *p_tar, BOOLEAN is_precise); extern BOOLEAN bta_gattc_check_notif_registry(tBTA_GATTC_RCB *p_clreg, tBTA_GATTC_SERV *p_srcb, tBTA_GATTC_NOTIFY *p_notify); extern BOOLEAN bta_gattc_mark_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR_PTR remote_bda, BOOLEAN add, BOOLEAN is_listen); extern BOOLEAN bta_gattc_check_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR remote_bda, UINT8 role); extern UINT8 bta_gattc_num_reg_app(void); extern void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV *p_srcb, UINT16 conn_id, UINT16 start_handle, UINT16 end_handle); extern tBTA_GATTC_SERV * bta_gattc_find_srvr_cache(BD_ADDR bda); /* discovery functions */ extern void bta_gattc_disc_res_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data); extern void bta_gattc_disc_cmpl_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status); extern tBTA_GATT_STATUS bta_gattc_discover_procedure(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, UINT8 disc_type); extern tBTA_GATT_STATUS bta_gattc_discover_pri_service(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, UINT8 disc_type); extern void bta_gattc_search_service(tBTA_GATTC_CLCB *p_clcb, tBT_UUID *p_uuid); extern const list_t* bta_gattc_get_services(UINT16 conn_id); extern const tBTA_GATTC_SERVICE* bta_gattc_get_service_for_handle(UINT16 conn_id, UINT16 handle); tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle); extern tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic(UINT16 conn_id, UINT16 handle); extern tBTA_GATTC_DESCRIPTOR* bta_gattc_get_descriptor(UINT16 conn_id, UINT16 handle); extern void bta_gattc_get_db_size_handle(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, int *count); extern void bta_gattc_get_db_size_with_type_handle(UINT16 conn_id, bt_gatt_db_attribute_type_t type, UINT16 start_handle, UINT16 end_handle, UINT16 char_handle, int *count); extern void bta_gattc_get_service_with_uuid(UINT16 conn_id, tBT_UUID *svc_uuid, btgatt_db_element_t **svc_db, int *count); extern void bta_gattc_get_db_with_opration(UINT16 conn_id, bt_gatt_get_db_op_t op, UINT16 char_handle, tBT_UUID *incl_uuid, tBT_UUID *char_uuid, tBT_UUID *descr_uuid, UINT16 start_handle, UINT16 end_handle, btgatt_db_element_t **char_db, int *count); extern void bta_gattc_get_gatt_db(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, btgatt_db_element_t **db, int *count); extern tBTA_GATT_STATUS bta_gattc_init_cache(tBTA_GATTC_SERV *p_srvc_cb); extern void bta_gattc_rebuild_cache(tBTA_GATTC_SERV *p_srcv, UINT16 num_attr, tBTA_GATTC_NV_ATTR *attr); extern void bta_gattc_cache_save(tBTA_GATTC_SERV *p_srvc_cb, UINT16 conn_id); extern void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status); extern tBTA_GATTC_CONN *bta_gattc_conn_alloc(BD_ADDR remote_bda); extern tBTA_GATTC_CONN *bta_gattc_conn_find(BD_ADDR remote_bda); extern tBTA_GATTC_CONN *bta_gattc_conn_find_alloc(BD_ADDR remote_bda); extern BOOLEAN bta_gattc_conn_dealloc(BD_ADDR remote_bda); extern bool bta_gattc_cache_load(tBTA_GATTC_CLCB *p_clcb); extern void bta_gattc_cache_reset(BD_ADDR server_bda); extern void bta_gattc_deinit(void); #endif /* BTA_GATTC_INT_H */