/****************************************************************************** * * 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 file contains the GATT client action functions for the state * machine. * ******************************************************************************/ #define LOG_TAG "bt_bta_gattc" #include "common/bt_target.h" #include "bta/utl.h" #include "bta/bta_sys.h" #include "bta_gattc_int.h" #include "stack/l2c_api.h" #include "l2c_int.h" #include "gatt_int.h" #include "osi/allocator.h" #include "osi/mutex.h" #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE) #include "bta_hh_int.h" #endif // #include "btif/include/btif_debug_conn.h" #include // #include "osi/include/log.h" #if GATTC_INCLUDED == TRUE && BLE_INCLUDED == TRUE /***************************************************************************** ** Constants *****************************************************************************/ static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected, tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport); static void bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data); static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op, tBTA_GATT_STATUS status, tGATT_CL_COMPLETE *p_data); static void bta_gattc_pop_command_to_send(tBTA_GATTC_CLCB *p_clcb); static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg); static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda); static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested); static void bta_gattc_req_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type, tGATTS_DATA *p_data); static tBTA_GATTC_FIND_SERVICE_CB bta_gattc_register_service_change_notify(UINT16 conn_id, BD_ADDR remote_bda); static tGATT_CBACK bta_gattc_cl_cback = { bta_gattc_conn_cback, bta_gattc_cmpl_cback, bta_gattc_disc_res_cback, bta_gattc_disc_cmpl_cback, bta_gattc_req_cback, bta_gattc_enc_cmpl_cback, bta_gattc_cong_cback }; /* opcode(tGATTC_OPTYPE) order has to be comply with internal event order */ static UINT16 bta_gattc_opcode_to_int_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_READ_MULTI_EVT }; #if (BT_TRACE_VERBOSE == TRUE) static const char *bta_gattc_op_code_name[] = { "Unknown", "Discovery", "Read", "Write", "Exec", "Config", "Notification", "Indication" }; #endif /***************************************************************************** ** Action Functions *****************************************************************************/ void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status); /******************************************************************************* ** ** Function bta_gattc_enable ** ** Description Enables GATTC module ** ** ** Returns void ** *******************************************************************************/ static void bta_gattc_enable(tBTA_GATTC_CB *p_cb) { APPL_TRACE_DEBUG("bta_gattc_enable"); if (p_cb->state == BTA_GATTC_STATE_DISABLED) { /* initialize control block */ memset(&bta_gattc_cb, 0, sizeof(tBTA_GATTC_CB)); p_cb->state = BTA_GATTC_STATE_ENABLED; } else { APPL_TRACE_DEBUG("GATTC is already enabled"); } } /******************************************************************************* ** ** Function bta_gattc_disable ** ** Description Disable GATTC module by cleaning up all active connections ** and deregister all application. ** ** Returns void ** *******************************************************************************/ void bta_gattc_disable(tBTA_GATTC_CB *p_cb) { UINT8 i; APPL_TRACE_DEBUG("bta_gattc_disable"); if (p_cb->state != BTA_GATTC_STATE_ENABLED) { APPL_TRACE_ERROR("not enabled or disable in pogress"); return; } for (i = 0; i < BTA_GATTC_CL_MAX; i ++) { if (p_cb->cl_rcb[i].in_use) { p_cb->state = BTA_GATTC_STATE_DISABLING; /* don't deregister HH GATT IF */ /* HH GATT IF will be deregistered by bta_hh_le_deregister when disable HH */ #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE) if (!bta_hh_le_is_hh_gatt_if(p_cb->cl_rcb[i].client_if)) { #endif bta_gattc_deregister(p_cb, &p_cb->cl_rcb[i]); #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE) } #endif } } /* no registered apps, indicate disable completed */ if (p_cb->state != BTA_GATTC_STATE_DISABLING) { p_cb->state = BTA_GATTC_STATE_DISABLED; memset(p_cb, 0, sizeof(tBTA_GATTC_CB)); } } /******************************************************************************* ** ** Function bta_gattc_register ** ** Description Register a GATT client application with BTA. ** ** Returns void ** *******************************************************************************/ void bta_gattc_register(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC cb_data; UINT8 i; tBT_UUID *p_app_uuid = &p_data->api_reg.app_uuid; tBTA_GATTC_INT_START_IF *p_buf; tBTA_GATT_STATUS status = BTA_GATT_NO_RESOURCES; APPL_TRACE_DEBUG("bta_gattc_register state %d\n", p_cb->state); memset(&cb_data, 0, sizeof(cb_data)); cb_data.reg_oper.status = BTA_GATT_NO_RESOURCES; /* check if GATTC module is already enabled . Else enable */ if (p_cb->state == BTA_GATTC_STATE_DISABLED) { bta_gattc_enable (p_cb); } /* todo need to check duplicate uuid */ for (i = 0; i < BTA_GATTC_CL_MAX; i ++) { if (!p_cb->cl_rcb[i].in_use) { if ((p_app_uuid == NULL) || (p_cb->cl_rcb[i].client_if = GATT_Register(p_app_uuid, &bta_gattc_cl_cback)) == 0) { APPL_TRACE_ERROR("Register with GATT stack failed.\n"); status = BTA_GATT_ERROR; } else { p_cb->cl_rcb[i].in_use = TRUE; p_cb->cl_rcb[i].p_cback = p_data->api_reg.p_cback; memcpy(&p_cb->cl_rcb[i].app_uuid, p_app_uuid, sizeof(tBT_UUID)); /* BTA use the same client interface as BTE GATT statck */ cb_data.reg_oper.client_if = p_cb->cl_rcb[i].client_if; if ((p_buf = (tBTA_GATTC_INT_START_IF *) osi_malloc(sizeof(tBTA_GATTC_INT_START_IF))) != NULL) { p_buf->hdr.event = BTA_GATTC_INT_START_IF_EVT; p_buf->client_if = p_cb->cl_rcb[i].client_if; APPL_TRACE_DEBUG("GATTC getbuf sucess.\n"); bta_sys_sendmsg(p_buf); status = BTA_GATT_OK; } else { GATT_Deregister(p_cb->cl_rcb[i].client_if); status = BTA_GATT_NO_RESOURCES; memset( &p_cb->cl_rcb[i], 0 , sizeof(tBTA_GATTC_RCB)); } break; } } } /* callback with register event */ if (p_data->api_reg.p_cback) { if (p_app_uuid != NULL) { memcpy(&(cb_data.reg_oper.app_uuid), p_app_uuid, sizeof(tBT_UUID)); } cb_data.reg_oper.status = status; (*p_data->api_reg.p_cback)(BTA_GATTC_REG_EVT, (tBTA_GATTC *)&cb_data); } } /******************************************************************************* ** ** Function bta_gattc_start_if ** ** Description start an application interface. ** ** Returns none. ** *******************************************************************************/ void bta_gattc_start_if(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { UNUSED(p_cb); if (bta_gattc_cl_get_regcb(p_msg->int_start_if.client_if) != NULL ) { GATT_StartIf(p_msg->int_start_if.client_if); } else { APPL_TRACE_ERROR("Unable to start app.: Unknown interface =%d", p_msg->int_start_if.client_if ); } } /******************************************************************************* ** ** Function bta_gattc_deregister ** ** Description De-Register a GATT client application with BTA. ** ** Returns void ** *******************************************************************************/ void bta_gattc_deregister(tBTA_GATTC_CB *p_cb, tBTA_GATTC_RCB *p_clreg) { UINT8 i; BT_HDR buf; if (p_clreg != NULL) { /* remove bg connection associated with this rcb */ for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++) { if (p_cb->bg_track[i].in_use) { if (p_cb->bg_track[i].cif_mask & (1 << (p_clreg->client_if - 1))) { bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, FALSE); GATT_CancelConnect(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE); } if (p_cb->bg_track[i].cif_adv_mask & (1 << (p_clreg->client_if - 1))) { bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, TRUE); } } } if (p_clreg->num_clcb > 0) { /* close all CLCB related to this app */ for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) { if (p_cb->clcb[i].in_use && (p_cb->clcb[i].p_rcb == p_clreg)) { p_clreg->dereg_pending = TRUE; buf.event = BTA_GATTC_API_CLOSE_EVT; buf.layer_specific = p_cb->clcb[i].bta_conn_id; bta_gattc_close(&p_cb->clcb[i], (tBTA_GATTC_DATA *)&buf) ; } } } else { bta_gattc_deregister_cmpl(p_clreg); } } else { APPL_TRACE_ERROR("bta_gattc_deregister Deregister Failedm unknown client cif"); } } /******************************************************************************* ** ** Function bta_gattc_process_api_open ** ** Description process connect API request. ** ** Returns void ** *******************************************************************************/ void bta_gattc_process_api_open (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { UINT16 event = ((BT_HDR *)p_msg)->event; tBTA_GATTC_CLCB *p_clcb = NULL; tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_conn.client_if); UNUSED(p_cb); if (p_clreg != NULL) { if (p_msg->api_conn.is_direct) { if ((p_clcb = bta_gattc_find_alloc_clcb(p_msg->api_conn.client_if, p_msg->api_conn.remote_bda, p_msg->api_conn.transport)) != NULL) { bta_gattc_sm_execute(p_clcb, event, p_msg); } else { APPL_TRACE_ERROR("No resources to open a new connection."); bta_gattc_send_open_cback(p_clreg, BTA_GATT_NO_RESOURCES, p_msg->api_conn.remote_bda, BTA_GATT_INVALID_CONN_ID, p_msg->api_conn.transport, 0); } } else { bta_gattc_init_bk_conn(&p_msg->api_conn, p_clreg); } } else { APPL_TRACE_ERROR("bta_gattc_process_api_open Failed, unknown client_if: %d", p_msg->api_conn.client_if); } } /******************************************************************************* ** ** Function bta_gattc_process_api_open_cancel ** ** Description process connect API request. ** ** Returns void ** *******************************************************************************/ void bta_gattc_process_api_open_cancel (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { UINT16 event = ((BT_HDR *)p_msg)->event; tBTA_GATTC_CLCB *p_clcb = NULL; tBTA_GATTC_RCB *p_clreg; tBTA_GATTC cb_data; UNUSED(p_cb); if (p_msg->api_cancel_conn.is_direct) { if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->api_cancel_conn.client_if, p_msg->api_cancel_conn.remote_bda, BTA_GATT_TRANSPORT_LE)) != NULL) { bta_gattc_sm_execute(p_clcb, event, p_msg); } else { APPL_TRACE_ERROR("No such connection need to be cancelled"); p_clreg = bta_gattc_cl_get_regcb(p_msg->api_cancel_conn.client_if); if (p_clreg && p_clreg->p_cback) { cb_data.status = BTA_GATT_ERROR; (*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data); } } } else { bta_gattc_cancel_bk_conn(&p_msg->api_cancel_conn); } } /******************************************************************************* ** ** Function bta_gattc_process_enc_cmpl ** ** Description process encryption complete message. ** ** Returns void ** *******************************************************************************/ void bta_gattc_process_enc_cmpl(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC_RCB *p_clreg; tBTA_GATTC cb_data; UNUSED(p_cb); p_clreg = bta_gattc_cl_get_regcb(p_msg->enc_cmpl.client_if); if (p_clreg && p_clreg->p_cback) { memset(&cb_data, 0, sizeof(tBTA_GATTC)); cb_data.enc_cmpl.client_if = p_msg->enc_cmpl.client_if; bdcpy(cb_data.enc_cmpl.remote_bda, p_msg->enc_cmpl.remote_bda); (*p_clreg->p_cback)(BTA_GATTC_ENC_CMPL_CB_EVT, &cb_data); } } /******************************************************************************* ** ** Function bta_gattc_cancel_open_error ** ** Description ** ** Returns void ** *******************************************************************************/ void bta_gattc_cancel_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC cb_data; UNUSED(p_data); cb_data.status = BTA_GATT_ERROR; if ( p_clcb && p_clcb->p_rcb && p_clcb->p_rcb->p_cback ) { (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data); } } /******************************************************************************* ** ** Function bta_gattc_open_error ** ** Description ** ** Returns void ** *******************************************************************************/ void bta_gattc_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_data); APPL_TRACE_ERROR("Connection already opened. wrong state"); bta_gattc_send_open_cback(p_clcb->p_rcb, BTA_GATT_OK, p_clcb->bda, p_clcb->bta_conn_id, p_clcb->transport, 0); } /******************************************************************************* ** ** Function bta_gattc_open_fail ** ** Description ** ** Returns void ** *******************************************************************************/ void bta_gattc_open_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_data); bta_gattc_send_open_cback(p_clcb->p_rcb, BTA_GATT_ERROR, p_clcb->bda, p_clcb->bta_conn_id, p_clcb->transport, 0); /* open failure, remove clcb */ bta_gattc_clcb_dealloc(p_clcb); } /******************************************************************************* ** ** Function bta_gattc_open ** ** Description Process API connection function. ** ** Returns void ** *******************************************************************************/ void bta_gattc_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC_DATA gattc_data; BOOLEAN found_app = FALSE; tGATT_TCB *p_tcb = gatt_find_tcb_by_addr(p_data->api_conn.remote_bda, BT_TRANSPORT_LE); if(p_tcb && p_clcb && p_data) { found_app = gatt_find_specific_app_in_hold_link(p_tcb, p_clcb->p_rcb->client_if); } /* open/hold a connection */ if (!GATT_Connect(p_clcb->p_rcb->client_if, p_data->api_conn.remote_bda, p_data->api_conn.remote_addr_type, TRUE, p_data->api_conn.transport)) { APPL_TRACE_ERROR("Connection open failure"); bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_OPEN_FAIL_EVT, p_data); } else { /* a connected remote device */ if (GATT_GetConnIdIfConnected(p_clcb->p_rcb->client_if, p_data->api_conn.remote_bda, &p_clcb->bta_conn_id, p_data->api_conn.transport)) { gattc_data.int_conn.hdr.layer_specific = p_clcb->bta_conn_id; gattc_data.int_conn.already_connect = found_app; bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data); } /* else wait for the callback event */ } } /******************************************************************************* ** ** Function bta_gattc_init_bk_conn ** ** Description Process API Open for a background connection ** ** Returns void ** *******************************************************************************/ void bta_gattc_init_bk_conn(tBTA_GATTC_API_OPEN *p_data, tBTA_GATTC_RCB *p_clreg) { tBTA_GATT_STATUS status = BTA_GATT_NO_RESOURCES; UINT16 conn_id; tBTA_GATTC_CLCB *p_clcb; tBTA_GATTC_DATA gattc_data; if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, TRUE, FALSE)) { /* always call open to hold a connection */ if (!GATT_Connect(p_data->client_if, p_data->remote_bda, p_data->remote_addr_type, FALSE, p_data->transport)) { uint8_t *bda = (uint8_t *)p_data->remote_bda; status = BTA_GATT_ERROR; APPL_TRACE_ERROR("%s unable to connect to remote bd_addr:%02x:%02x:%02x:%02x:%02x:%02x", __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]); } else { status = BTA_GATT_OK; /* if is a connected remote device */ if (GATT_GetConnIdIfConnected(p_data->client_if, p_data->remote_bda, &conn_id, p_data->transport)) { if ((p_clcb = bta_gattc_find_alloc_clcb(p_data->client_if, p_data->remote_bda, BTA_GATT_TRANSPORT_LE)) != NULL) { gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id; /* open connection */ bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data); status = BTA_GATT_OK; } } } } /* open failure, report OPEN_EVT */ if (status != BTA_GATT_OK) { bta_gattc_send_open_cback(p_clreg, status, p_data->remote_bda, BTA_GATT_INVALID_CONN_ID, BTA_GATT_TRANSPORT_LE, 0); } } /******************************************************************************* ** ** Function bta_gattc_cancel_bk_conn ** ** Description Process API Cancel Open for a background connection ** ** Returns void ** *******************************************************************************/ void bta_gattc_cancel_bk_conn(tBTA_GATTC_API_CANCEL_OPEN *p_data) { tBTA_GATTC_RCB *p_clreg; tBTA_GATTC cb_data; cb_data.status = BTA_GATT_ERROR; /* remove the device from the bg connection mask */ if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, FALSE, FALSE)) { if (GATT_CancelConnect(p_data->client_if, p_data->remote_bda, FALSE)) { cb_data.status = BTA_GATT_OK; } else { APPL_TRACE_ERROR("bta_gattc_cancel_bk_conn failed"); } } p_clreg = bta_gattc_cl_get_regcb(p_data->client_if); if (p_clreg && p_clreg->p_cback) { (*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data); } } /******************************************************************************* ** ** Function bta_gattc_int_cancel_open_ok ** ** Description ** ** Returns void ** *******************************************************************************/ void bta_gattc_cancel_open_ok(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC cb_data; UNUSED(p_data); if ( p_clcb->p_rcb->p_cback ) { cb_data.status = BTA_GATT_OK; (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data); } bta_gattc_clcb_dealloc(p_clcb); } /******************************************************************************* ** ** Function bta_gattc_cancel_open ** ** Description ** ** Returns void ** *******************************************************************************/ void bta_gattc_cancel_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC cb_data; if (GATT_CancelConnect(p_clcb->p_rcb->client_if, p_data->api_cancel_conn.remote_bda, TRUE)) { bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CANCEL_OPEN_OK_EVT, p_data); } else { if ( p_clcb->p_rcb->p_cback ) { cb_data.status = BTA_GATT_ERROR; (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data); } } } /******************************************************************************* ** ** Function bta_gattc_conn ** ** Description receive connection callback from stack ** ** Returns void ** *******************************************************************************/ void bta_gattc_conn(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC_IF gatt_if; APPL_TRACE_DEBUG("bta_gattc_conn server cache state=%d", p_clcb->p_srcb->state); if (p_data != NULL) { APPL_TRACE_DEBUG("bta_gattc_conn conn_id=%d", p_data->hdr.layer_specific); p_clcb->bta_conn_id = p_data->int_conn.hdr.layer_specific; GATT_GetConnectionInfor(p_data->hdr.layer_specific, &gatt_if, p_clcb->bda, &p_clcb->transport); } p_clcb->p_srcb->connected = TRUE; if (p_clcb->p_srcb->mtu == 0) { p_clcb->p_srcb->mtu = GATT_DEF_BLE_MTU_SIZE; } /* start database cache if needed */ if (p_clcb->p_srcb->p_srvc_cache == NULL || p_clcb->p_srcb->state != BTA_GATTC_SERV_IDLE) { if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) { #if (GATTC_CACHE_NVS == TRUE) p_clcb->p_srcb->state = BTA_GATTC_SERV_LOAD; if (bta_gattc_cache_load(p_clcb)) { p_clcb->p_srcb->state = BTA_GATTC_SERV_IDLE; bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_OK); //register service change bta_gattc_register_service_change_notify(p_clcb->bta_conn_id, p_clcb->bda); } else #endif { /* cache is building */ p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC; /* cache load failure, start discovery */ bta_gattc_start_discover(p_clcb, NULL); } } else { /* cache is building */ p_clcb->state = BTA_GATTC_DISCOVER_ST; } } else { /* a pending service handle change indication */ if (p_clcb->p_srcb->srvc_hdl_chg) { p_clcb->p_srcb->srvc_hdl_chg = FALSE; /* start discovery */ bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL); } } if (p_clcb->p_rcb) { /* there is no RM for GATT */ if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) { bta_sys_conn_open(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda); } tBTA_GATT_STATUS status = BTA_GATT_OK; if (p_data && p_data->int_conn.already_connect) { //clear already_connect p_data->int_conn.already_connect = FALSE; status = BTA_GATT_ALREADY_OPEN; } bta_gattc_send_open_cback(p_clcb->p_rcb, status, p_clcb->bda, p_clcb->bta_conn_id, p_clcb->transport, p_clcb->p_srcb->mtu); } } /******************************************************************************* ** ** Function bta_gattc_conncback ** ** Description receive connection callback from stack ** ** Returns void ** *******************************************************************************/ void bta_gattc_conncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data) { if (p_rcb) { bta_gattc_send_connect_cback(p_rcb, p_data->int_conn.remote_bda, p_data->int_conn.hdr.layer_specific); } } /******************************************************************************* ** ** Function bta_gattc_disconncback ** ** Description receive disconnection callback from stack ** ** Returns void ** *******************************************************************************/ void bta_gattc_disconncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data) { if (p_rcb) { bta_gattc_send_disconnect_cback(p_rcb, p_data->int_conn.reason, p_data->int_conn.remote_bda, p_data->int_conn.hdr.layer_specific); } } /******************************************************************************* ** ** Function bta_gattc_close_fail ** ** Description close a connection. ** ** Returns void ** *******************************************************************************/ void bta_gattc_close_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC cb_data; if ( p_clcb->p_rcb->p_cback ) { memset(&cb_data, 0, sizeof(tBTA_GATTC)); cb_data.close.client_if = p_clcb->p_rcb->client_if; cb_data.close.conn_id = p_data->hdr.layer_specific; bdcpy(cb_data.close.remote_bda, p_clcb->bda); cb_data.close.status = BTA_GATT_ERROR; cb_data.close.reason = BTA_GATT_CONN_NONE; (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CLOSE_EVT, &cb_data); } } /******************************************************************************* ** ** Function bta_gattc_api_close ** ** Description close a GATTC connection. ** ** Returns void ** *******************************************************************************/ void bta_gattc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC_CBACK *p_cback = p_clcb->p_rcb->p_cback; tBTA_GATTC_RCB *p_clreg = p_clcb->p_rcb; tBTA_GATTC cb_data; APPL_TRACE_DEBUG("bta_gattc_close conn_id=%d", p_clcb->bta_conn_id); cb_data.close.client_if = p_clcb->p_rcb->client_if; cb_data.close.conn_id = p_clcb->bta_conn_id; cb_data.close.reason = p_clcb->reason; cb_data.close.status = p_clcb->status; bdcpy(cb_data.close.remote_bda, p_clcb->bda); if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) { bta_sys_conn_close( BTA_ID_GATTC , BTA_ALL_APP_ID, p_clcb->bda); } bta_gattc_clcb_dealloc(p_clcb); if (p_data->hdr.event == BTA_GATTC_API_CLOSE_EVT) { cb_data.close.status = GATT_Disconnect(p_data->hdr.layer_specific); } else if (p_data->hdr.event == BTA_GATTC_INT_DISCONN_EVT) { cb_data.close.status = BTA_GATT_OK; cb_data.close.reason = p_data->int_conn.reason; } if (p_cback) { (* p_cback)(BTA_GATTC_CLOSE_EVT, (tBTA_GATTC *)&cb_data); } if (p_clreg->num_clcb == 0 && p_clreg->dereg_pending) { bta_gattc_deregister_cmpl(p_clreg); } } /******************************************************************************* ** ** Function bta_gattc_reset_discover_st ** ** Description when a SRCB finished discovery, tell all related clcb. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status) { tBTA_GATTC_CB *p_cb = &bta_gattc_cb; UINT8 i; for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) { if (p_cb->clcb[i].p_srcb == p_srcb) { p_cb->clcb[i].status = status; bta_gattc_sm_execute(&p_cb->clcb[i], BTA_GATTC_DISCOVER_CMPL_EVT, NULL); } } } /******************************************************************************* ** ** Function bta_gattc_disc_close ** ** Description close a GATTC connection while in discovery state. ** ** Returns void ** *******************************************************************************/ void bta_gattc_disc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { APPL_TRACE_DEBUG("%s: Discovery cancel conn_id=%d", __func__, p_clcb->bta_conn_id); if (p_clcb->disc_active) { bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_ERROR); } else { p_clcb->state = BTA_GATTC_CONN_ST; } // This function only gets called as the result of a BTA_GATTC_API_CLOSE_EVT // while in the BTA_GATTC_DISCOVER_ST state. Once the state changes, the // connection itself still needs to be closed to resolve the original event. if (p_clcb->state == BTA_GATTC_CONN_ST) { APPL_TRACE_DEBUG("State is back to BTA_GATTC_CONN_ST. " "Trigger connection close"); bta_gattc_close(p_clcb, p_data); } } /******************************************************************************* ** ** Function bta_gattc_set_discover_st ** ** Description when a SRCB start discovery, tell all related clcb and set ** the state. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_set_discover_st(tBTA_GATTC_SERV *p_srcb) { tBTA_GATTC_CB *p_cb = &bta_gattc_cb; UINT8 i; for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) { if (p_cb->clcb[i].p_srcb == p_srcb) { p_cb->clcb[i].status = BTA_GATT_OK; p_cb->clcb[i].state = BTA_GATTC_DISCOVER_ST; } } } /******************************************************************************* ** ** Function bta_gattc_restart_discover ** ** Description process service change in discovery state, mark up the auto ** update flag and set status to be discovery cancel for current ** discovery. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_restart_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_data); p_clcb->status = BTA_GATT_CANCEL; p_clcb->auto_update = BTA_GATTC_DISC_WAITING; } /******************************************************************************* ** ** Function bta_gattc_cfg_mtu ** ** Description Configure MTU size on the GATT connection. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_cfg_mtu(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATT_STATUS status; if (bta_gattc_enqueue(p_clcb, p_data)) { status = GATTC_ConfigureMTU (p_clcb->bta_conn_id); /* if failed, return callback here */ if (status != GATT_SUCCESS && status != GATT_CMD_STARTED) { /* Dequeue the data, if it was enqueued */ if (p_clcb->p_q_cmd == p_data) { p_clcb->p_q_cmd = NULL; bta_gattc_pop_command_to_send(p_clcb); } bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_CONFIG, status, NULL); } } } /******************************************************************************* ** ** Function bta_gattc_start_discover ** ** Description Start a discovery send to server. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_start_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_data); APPL_TRACE_DEBUG("bta_gattc_start_discover conn_id=%d p_clcb->p_srcb->state = %d ", p_clcb->bta_conn_id, p_clcb->p_srcb->state); if (((p_clcb->p_q_cmd == NULL || p_clcb->auto_update == BTA_GATTC_REQ_WAITING) && p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) || p_clcb->p_srcb->state == BTA_GATTC_SERV_DISC) { /* no pending operation, start discovery right away */ p_clcb->auto_update = BTA_GATTC_NO_SCHEDULE; if (p_clcb->p_srcb != NULL) { /* clear the service change mask */ p_clcb->p_srcb->srvc_hdl_chg = FALSE; p_clcb->p_srcb->update_count = 0; p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC_ACT; if (p_clcb->transport == BTA_TRANSPORT_LE) { L2CA_EnableUpdateBleConnParams(p_clcb->p_srcb->server_bda, FALSE); } /* set all srcb related clcb into discovery ST */ bta_gattc_set_discover_st(p_clcb->p_srcb); if ((p_clcb->status = bta_gattc_init_cache(p_clcb->p_srcb)) == BTA_GATT_OK) { p_clcb->status = bta_gattc_discover_pri_service(p_clcb->bta_conn_id, p_clcb->p_srcb, GATT_DISC_SRVC_ALL); } if (p_clcb->status != BTA_GATT_OK) { APPL_TRACE_ERROR("discovery on server failed"); bta_gattc_reset_discover_st(p_clcb->p_srcb, p_clcb->status); } else { p_clcb->disc_active = TRUE; } } else { APPL_TRACE_ERROR("unknown device, can not start discovery"); } } /* pending operation, wait until it finishes */ else { p_clcb->auto_update = BTA_GATTC_DISC_WAITING; if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) { p_clcb->state = BTA_GATTC_CONN_ST; /* set clcb state */ } } } /******************************************************************************* ** ** Function bta_gattc_disc_cmpl ** ** Description discovery on server is finished ** ** Returns None. ** *******************************************************************************/ void bta_gattc_disc_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATTC_DATA *p_q_cmd = p_clcb->p_q_cmd; UNUSED(p_data); APPL_TRACE_DEBUG("bta_gattc_disc_cmpl conn_id=%d, status = %d", p_clcb->bta_conn_id, p_clcb->status); p_clcb->p_srcb->state = BTA_GATTC_SERV_IDLE; p_clcb->disc_active = FALSE; if (p_clcb->status != GATT_SUCCESS) { /* clean up cache */ if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache) { list_free(p_clcb->p_srcb->p_srvc_cache); p_clcb->p_srcb->p_srvc_cache = NULL; } #if(GATTC_CACHE_NVS == TRUE) /* used to reset cache in application */ bta_gattc_cache_reset(p_clcb->p_srcb->server_bda); #endif } if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_list) { /* release pending attribute list buffer */ osi_free(p_clcb->p_srcb->p_srvc_list); p_clcb->p_srcb->p_srvc_list = NULL; //osi_free_and_reset((void **)&p_clcb->p_srcb->p_srvc_list); } if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING) { /* start discovery again */ bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL); } /* get any queued command to proceed */ else if (p_q_cmd != NULL) { p_clcb->p_q_cmd = NULL; /* execute pending operation of link block still present */ if (l2cu_find_lcb_by_bd_addr(p_clcb->p_srcb->server_bda, BT_TRANSPORT_LE) != NULL) { bta_gattc_sm_execute(p_clcb, p_q_cmd->hdr.event, p_q_cmd); } /* if the command executed requeued the cmd, we don't * want to free the underlying buffer that's being * referenced by p_clcb->p_q_cmd */ if (p_q_cmd != p_clcb->p_q_cmd) { osi_free(p_q_cmd); p_q_cmd = NULL; } } //register service change bta_gattc_register_service_change_notify(p_clcb->bta_conn_id, p_clcb->bda); } /******************************************************************************* ** ** Function bta_gattc_read ** ** Description Read an attribute ** ** Returns None. ** *******************************************************************************/ void bta_gattc_read(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { if (!bta_gattc_enqueue(p_clcb, p_data)) return; tGATT_READ_PARAM read_param; memset (&read_param, 0 ,sizeof(tGATT_READ_PARAM)); read_param.by_handle.handle = p_data->api_read.handle; read_param.by_handle.auth_req = p_data->api_read.auth_req; tBTA_GATT_STATUS status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_BY_HANDLE, &read_param); /* read fail */ if (status != BTA_GATT_OK) { /* Dequeue the data, if it was enqueued */ if (p_clcb->p_q_cmd == p_data) { p_clcb->p_q_cmd = NULL; bta_gattc_pop_command_to_send(p_clcb); } bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL); } } /******************************************************************************* ** ** Function bta_gattc_read_multi ** ** Description read multiple ** ** Returns None. *********************************************************************************/ void bta_gattc_read_multi(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATT_STATUS status = BTA_GATT_OK; tGATT_READ_PARAM read_param; if (bta_gattc_enqueue(p_clcb, p_data)) { memset(&read_param, 0, sizeof(tGATT_READ_PARAM)); if (status == BTA_GATT_OK) { read_param.read_multiple.num_handles = p_data->api_read_multi.num_attr; read_param.read_multiple.auth_req = p_data->api_read_multi.auth_req; memcpy(&read_param.read_multiple.handles, p_data->api_read_multi.handles, sizeof(UINT16) * p_data->api_read_multi.num_attr); status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_MULTIPLE, &read_param); } /* read fail */ if (status != BTA_GATT_OK) { /* Dequeue the data, if it was enqueued */ if (p_clcb->p_q_cmd == p_data) { p_clcb->p_q_cmd = NULL; bta_gattc_pop_command_to_send(p_clcb); } bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL); } } } /******************************************************************************* ** ** Function bta_gattc_write ** ** Description Write an attribute ** ** Returns None. ** *******************************************************************************/ void bta_gattc_write(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { if (!bta_gattc_enqueue(p_clcb, p_data)) return; tBTA_GATT_STATUS status = BTA_GATT_OK; tGATT_VALUE attr; attr.conn_id = p_clcb->bta_conn_id; attr.handle = p_data->api_write.handle; attr.offset = p_data->api_write.offset; attr.len = p_data->api_write.len; attr.auth_req = p_data->api_write.auth_req; if (p_data->api_write.p_value) { memcpy(attr.value, p_data->api_write.p_value, p_data->api_write.len); } status = GATTC_Write(p_clcb->bta_conn_id, p_data->api_write.write_type, &attr); /* write fail */ if (status != BTA_GATT_OK) { /* Dequeue the data, if it was enqueued */ if (p_clcb->p_q_cmd == p_data) { p_clcb->p_q_cmd = NULL; bta_gattc_pop_command_to_send(p_clcb); } bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_WRITE, status, NULL); } } /******************************************************************************* ** ** Function bta_gattc_execute ** ** Description send execute write ** ** Returns None. *********************************************************************************/ void bta_gattc_execute(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATT_STATUS status; if (bta_gattc_enqueue(p_clcb, p_data)) { status = GATTC_ExecuteWrite(p_clcb->bta_conn_id, p_data->api_exec.is_execute); if (status != BTA_GATT_OK) { /* Dequeue the data, if it was enqueued */ if (p_clcb->p_q_cmd == p_data) { p_clcb->p_q_cmd = NULL; bta_gattc_pop_command_to_send(p_clcb); } bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_EXE_WRITE, status, NULL); } } } /******************************************************************************* ** ** Function bta_gattc_confirm ** ** Description send handle value confirmation ** ** Returns None. ** *******************************************************************************/ void bta_gattc_confirm(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UINT16 handle = p_data->api_confirm.handle; if (GATTC_SendHandleValueConfirm(p_data->api_confirm.hdr.layer_specific, handle) != GATT_SUCCESS) { APPL_TRACE_ERROR("bta_gattc_confirm to handle [0x%04x] failed", handle); } else { /* if over BR_EDR, inform PM for mode change */ if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) { bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda); bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda); } } } /******************************************************************************* ** ** Function bta_gattc_read_cmpl ** ** Description read complete ** ** Returns None. ** *******************************************************************************/ void bta_gattc_read_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data) { UINT8 event; tBTA_GATTC cb_data; tBTA_GATT_UNFMT read_value; memset(&cb_data, 0, sizeof(tBTA_GATTC)); memset(&read_value, 0, sizeof(tBTA_GATT_UNFMT)); cb_data.read.status = p_data->status; if (p_data->p_cmpl != NULL && p_data->status == BTA_GATT_OK) { cb_data.read.handle = p_data->p_cmpl->att_value.handle; read_value.len = p_data->p_cmpl->att_value.len; read_value.p_value = p_data->p_cmpl->att_value.value; cb_data.read.p_value = &read_value; } else { cb_data.read.handle = p_clcb->p_q_cmd->api_read.handle; } if (p_clcb->p_q_cmd->hdr.event != BTA_GATTC_API_READ_MULTI_EVT) { event = p_clcb->p_q_cmd->api_read.cmpl_evt; } else { event = p_clcb->p_q_cmd->api_read_multi.cmpl_evt; } cb_data.read.conn_id = p_clcb->bta_conn_id; //free the command data store in the queue. bta_gattc_free_command_data(p_clcb); bta_gattc_pop_command_to_send(p_clcb); /* read complete, callback */ ( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data); } /******************************************************************************* ** ** Function bta_gattc_write_cmpl ** ** Description write complete ** ** Returns None. ** *******************************************************************************/ void bta_gattc_write_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data) { tBTA_GATTC cb_data = {0}; UINT8 event; tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find(p_clcb->bda); memset(&cb_data, 0, sizeof(tBTA_GATTC)); cb_data.write.status = p_data->status; cb_data.write.handle = p_data->p_cmpl->att_value.handle; if (p_clcb->p_q_cmd->api_write.hdr.event == BTA_GATTC_API_WRITE_EVT && p_clcb->p_q_cmd->api_write.write_type == BTA_GATTC_WRITE_PREPARE) { // Should check the value received from the peer device is correct or not. if (memcmp(p_clcb->p_q_cmd->api_write.p_value, p_data->p_cmpl->att_value.value, p_data->p_cmpl->att_value.len) != 0) { cb_data.write.status = BTA_GATT_INVALID_PDU; } event = BTA_GATTC_PREP_WRITE_EVT; } else { event = p_clcb->p_q_cmd->api_write.cmpl_evt; } //free the command data store in the queue. bta_gattc_free_command_data(p_clcb); bta_gattc_pop_command_to_send(p_clcb); cb_data.write.conn_id = p_clcb->bta_conn_id; if (p_conn && p_conn->svc_change_descr_handle == cb_data.write.handle) { if(cb_data.write.status != BTA_GATT_OK) { p_conn->write_remote_svc_change_ccc_done = FALSE; APPL_TRACE_ERROR("service change write ccc failed"); } return; } /* write complete, callback */ ( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data); } /******************************************************************************* ** ** Function bta_gattc_exec_cmpl ** ** Description execute write complete ** ** Returns None. ** *******************************************************************************/ void bta_gattc_exec_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data) { tBTA_GATTC cb_data; //free the command data store in the queue. bta_gattc_free_command_data(p_clcb); bta_gattc_pop_command_to_send(p_clcb); p_clcb->status = BTA_GATT_OK; /* execute complete, callback */ cb_data.exec_cmpl.conn_id = p_clcb->bta_conn_id; cb_data.exec_cmpl.status = p_data->status; ( *p_clcb->p_rcb->p_cback)(BTA_GATTC_EXEC_EVT, &cb_data); } /******************************************************************************* ** ** Function bta_gattc_cfg_mtu_cmpl ** ** Description configure MTU operation complete ** ** Returns None. ** *******************************************************************************/ void bta_gattc_cfg_mtu_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data) { tBTA_GATTC cb_data; //free the command data store in the queue. bta_gattc_free_command_data(p_clcb); bta_gattc_pop_command_to_send(p_clcb); if (p_data->p_cmpl && p_data->status == BTA_GATT_OK) { p_clcb->p_srcb->mtu = p_data->p_cmpl->mtu; } /* configure MTU complete, callback */ p_clcb->status = p_data->status; cb_data.cfg_mtu.conn_id = p_clcb->bta_conn_id; cb_data.cfg_mtu.status = p_data->status; cb_data.cfg_mtu.mtu = p_clcb->p_srcb->mtu; (*p_clcb->p_rcb->p_cback) (BTA_GATTC_CFG_MTU_EVT, &cb_data); } /******************************************************************************* ** ** Function bta_gattc_op_cmpl ** ** Description operation completed. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UINT8 op = (UINT8)p_data->op_cmpl.op_code; UINT8 mapped_op = 0; APPL_TRACE_DEBUG("bta_gattc_op_cmpl op = %d", op); if (op == GATTC_OPTYPE_INDICATION || op == GATTC_OPTYPE_NOTIFICATION) { APPL_TRACE_ERROR("unexpected operation, ignored"); } else if (op >= GATTC_OPTYPE_READ) { if (p_clcb->p_q_cmd == NULL) { APPL_TRACE_ERROR("No pending command"); return; } if (p_clcb->p_q_cmd->hdr.event != bta_gattc_opcode_to_int_evt[op - GATTC_OPTYPE_READ]) { if (p_clcb->p_q_cmd->hdr.event != BTA_GATTC_API_READ_MULTI_EVT) { mapped_op = p_clcb->p_q_cmd->hdr.event - BTA_GATTC_API_READ_EVT + GATTC_OPTYPE_READ; if ( mapped_op > GATTC_OPTYPE_INDICATION) { mapped_op = 0; } #if (BT_TRACE_VERBOSE == TRUE) APPL_TRACE_ERROR("expect op:(%s :0x%04x), receive unexpected operation (%s).", bta_gattc_op_code_name[mapped_op] , p_clcb->p_q_cmd->hdr.event, bta_gattc_op_code_name[op]); #else APPL_TRACE_ERROR("expect op:(%u :0x%04x), receive unexpected operation (%u).", mapped_op , p_clcb->p_q_cmd->hdr.event, op); #endif return; } } /* discard responses if service change indication is received before operation completed */ if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING && p_clcb->p_srcb->srvc_hdl_chg) { APPL_TRACE_DEBUG("Discard all responses when service change indication is received."); p_data->op_cmpl.status = GATT_ERROR; } /* service handle change void the response, discard it */ if (op == GATTC_OPTYPE_READ) { bta_gattc_read_cmpl(p_clcb, &p_data->op_cmpl); } else if (op == GATTC_OPTYPE_WRITE) { bta_gattc_write_cmpl(p_clcb, &p_data->op_cmpl); } else if (op == GATTC_OPTYPE_EXE_WRITE) { bta_gattc_exec_cmpl(p_clcb, &p_data->op_cmpl); } else if (op == GATTC_OPTYPE_CONFIG) { bta_gattc_cfg_mtu_cmpl(p_clcb, &p_data->op_cmpl); } if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING) { p_clcb->auto_update = BTA_GATTC_REQ_WAITING; bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL); } } } /******************************************************************************* ** ** Function bta_gattc_op_cmpl ** ** Description operation completed. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_ignore_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_clcb); /* receive op complete when discovery is started, ignore the response, and wait for discovery finish and resent */ APPL_TRACE_DEBUG("bta_gattc_ignore_op_cmpl op = %d", p_data->hdr.layer_specific); } /******************************************************************************* ** ** Function bta_gattc_search ** ** Description start a search in the local server cache ** ** Returns None. ** *******************************************************************************/ void bta_gattc_search(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { tBTA_GATT_STATUS status = GATT_INTERNAL_ERROR; tBTA_GATTC cb_data; APPL_TRACE_DEBUG("bta_gattc_search conn_id=%d", p_clcb->bta_conn_id); if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache) { status = BTA_GATT_OK; /* search the local cache of a server device */ bta_gattc_search_service(p_clcb, p_data->api_search.p_srvc_uuid); } cb_data.search_cmpl.status = status; cb_data.search_cmpl.conn_id = p_clcb->bta_conn_id; /* end of search or no server cache available */ ( *p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_CMPL_EVT, &cb_data); } /******************************************************************************* ** ** Function bta_gattc_q_cmd ** ** Description enqueue a command into control block, usually because discovery ** operation is busy. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_q_cmd(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { bta_gattc_enqueue(p_clcb, p_data); } /******************************************************************************* ** ** Function bta_gattc_pop_command_to_send ** ** Description dequeue a command into control block. ** Check if there has command pending in the command queue or not, ** if there has command pending in the command queue, sent it to the state machine to decision ** should be sent it to the remote device or not. ** ** Returns None. ** *******************************************************************************/ static void bta_gattc_pop_command_to_send(tBTA_GATTC_CLCB *p_clcb) { if (!list_is_empty(p_clcb->p_cmd_list)) { list_node_t *node = list_begin(p_clcb->p_cmd_list); tBTA_GATTC_DATA *p_data = (tBTA_GATTC_DATA *)list_node(node); if (p_data != NULL) { /* execute pending operation of link block still present */ if (l2cu_find_lcb_by_bd_addr(p_clcb->p_srcb->server_bda, BT_TRANSPORT_LE) != NULL) { // The data to be sent to the gattc state machine for processing if(bta_gattc_sm_execute(p_clcb, p_data->hdr.event, p_data)) { list_remove(p_clcb->p_cmd_list, (void *)p_data); } if (p_clcb->is_full) { tBTA_GATTC cb_data = {0}; p_clcb->is_full = FALSE; cb_data.status = GATT_SUCCESS; cb_data.queue_full.conn_id = p_clcb->bta_conn_id; cb_data.queue_full.is_full = FALSE; if (p_clcb->p_rcb->p_cback != NULL) { ( *p_clcb->p_rcb->p_cback)(BTA_GATTC_QUEUE_FULL_EVT, (tBTA_GATTC *)&cb_data); } } } } } } /******************************************************************************* ** ** Function bta_gattc_free_command_data ** ** Description free the command data into control block. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_free_command_data(tBTA_GATTC_CLCB *p_clcb) { assert(p_clcb->p_cmd_list); //Check the list is empty or not. if (!list_is_empty(p_clcb->p_cmd_list)) { /* Traversal the command queue, check the p_q_cmd is point to the queue data or not, if the p_q_cmd point to the command queue,should remove it from the list */ for (list_node_t *node = list_begin(p_clcb->p_cmd_list); node != list_end(p_clcb->p_cmd_list); node = list_next(node)) { tBTA_GATTC_DATA *p_data = (tBTA_GATTC_DATA *)list_node(node); if (p_data == p_clcb->p_q_cmd) { list_remove(p_clcb->p_cmd_list, (void *)p_data); p_clcb->p_q_cmd = NULL; return; } } osi_free(p_clcb->p_q_cmd); p_clcb->p_q_cmd = NULL; } else { osi_free(p_clcb->p_q_cmd); p_clcb->p_q_cmd = NULL; } } /******************************************************************************* ** ** Function bta_gattc_fail ** ** Description report API call failure back to apps ** ** Returns None. ** *******************************************************************************/ void bta_gattc_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data) { UNUSED(p_data); if (p_clcb->status == BTA_GATT_OK) { APPL_TRACE_ERROR("operation not supported at current state [%d]", p_clcb->state); } } /******************************************************************************* ** ** Function bta_gattc_deregister_cmpl ** ** Description De-Register a GATT client application with BTA completed. ** ** Returns void ** *******************************************************************************/ static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg) { tBTA_GATTC_CB *p_cb = &bta_gattc_cb; tBTA_GATTC_IF client_if = p_clreg->client_if; tBTA_GATTC cb_data; tBTA_GATTC_CBACK *p_cback = p_clreg->p_cback; memset(&cb_data, 0, sizeof(tBTA_GATTC)); GATT_Deregister(p_clreg->client_if); memset(p_clreg, 0, sizeof(tBTA_GATTC_RCB)); cb_data.reg_oper.client_if = client_if; cb_data.reg_oper.status = BTA_GATT_OK; if (p_cback) /* callback with de-register event */ { (*p_cback)(BTA_GATTC_DEREG_EVT, (tBTA_GATTC *)&cb_data); } if (bta_gattc_num_reg_app() == 0 && p_cb->state == BTA_GATTC_STATE_DISABLING) { p_cb->state = BTA_GATTC_STATE_DISABLED; } } /******************************************************************************* ** ** Function bta_gattc_conn_cback ** ** Description callback functions to GATT client stack. ** ** Returns void ** *******************************************************************************/ static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected, tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport) { tBTA_GATTC_DATA *p_buf; if (reason != 0) { APPL_TRACE_WARNING("%s() - cif=%d connected=%d conn_id=%d reason=0x%04x", __FUNCTION__, gattc_if, connected, conn_id, reason); } bt_bdaddr_t bdaddr; bdcpy(bdaddr.address, bda); if ((p_buf = (tBTA_GATTC_DATA *) osi_malloc(sizeof(tBTA_GATTC_DATA))) != NULL) { memset(p_buf, 0, sizeof(tBTA_GATTC_DATA)); p_buf->int_conn.hdr.event = connected ? BTA_GATTC_INT_CONN_EVT : BTA_GATTC_INT_DISCONN_EVT; p_buf->int_conn.hdr.layer_specific = conn_id; p_buf->int_conn.client_if = gattc_if; p_buf->int_conn.role = L2CA_GetBleConnRole(bda); p_buf->int_conn.reason = reason; p_buf->int_conn.transport = transport; bdcpy(p_buf->int_conn.remote_bda, bda); bta_sys_sendmsg(p_buf); } } /******************************************************************************* ** ** Function bta_gattc_enc_cmpl_cback ** ** Description encryption complete callback function to GATT client stack. ** ** Returns void ** *******************************************************************************/ static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda) { tBTA_GATTC_DATA *p_buf; tBTA_GATTC_CLCB *p_clcb = NULL; if ((p_clcb = bta_gattc_find_clcb_by_cif(gattc_if, bda, BTA_GATT_TRANSPORT_LE)) == NULL) { return; } #if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE) /* filter this event just for BTA HH LE GATT client, In the future, if we want to enable encryption complete event for all GATT clients, we can remove this code */ if (!bta_hh_le_is_hh_gatt_if(gattc_if)) { return; } #endif APPL_TRACE_DEBUG("bta_gattc_enc_cmpl_cback: cif = %d", gattc_if); if ((p_buf = (tBTA_GATTC_DATA *) osi_calloc(sizeof(tBTA_GATTC_DATA))) != NULL) { memset(p_buf, 0, sizeof(tBTA_GATTC_DATA)); p_buf->enc_cmpl.hdr.event = BTA_GATTC_ENC_CMPL_EVT; p_buf->enc_cmpl.hdr.layer_specific = p_clcb->bta_conn_id; p_buf->enc_cmpl.client_if = gattc_if; bdcpy(p_buf->enc_cmpl.remote_bda, bda); bta_sys_sendmsg(p_buf); } } /******************************************************************************* ** ** Function bta_gattc_process_api_refresh ** ** Description process refresh API to delete cache and start a new discovery ** if currently connected. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_process_api_refresh(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC_SERV *p_srvc_cb = bta_gattc_find_srvr_cache(p_msg->api_conn.remote_bda); tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0]; BOOLEAN found = FALSE; UINT8 i; UNUSED(p_cb); if (p_srvc_cb != NULL) { /* try to find a CLCB */ if (p_srvc_cb->connected && p_srvc_cb->num_clcb != 0) { for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) { if (p_clcb->in_use && p_clcb->p_srcb == p_srvc_cb) { found = TRUE; break; } } if (found) { bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL); return; } } /* in all other cases, mark it and delete the cache */ if (p_srvc_cb->p_srvc_cache != NULL) { list_free(p_srvc_cb->p_srvc_cache); p_srvc_cb->p_srvc_cache = NULL; } } } void bta_gattc_process_api_cache_assoc(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC gattc_cb = {0}; gattc_cb.set_assoc.client_if = p_msg->api_assoc.client_if; BOOLEAN state = FALSE; tBTA_GATTC_CLCB *p_assoc_clcb = bta_gattc_find_clcb_by_cif(p_msg->api_assoc.client_if, p_msg->api_assoc.assoc_addr, BTA_TRANSPORT_LE); tBTA_GATTC_RCB *p_clrcb = bta_gattc_cl_get_regcb(p_msg->api_assoc.client_if); if (p_assoc_clcb != NULL) { if (p_assoc_clcb->state == BTA_GATTC_CONN_ST || p_assoc_clcb->state == BTA_GATTC_DISCOVER_ST) { gattc_cb.set_assoc.status = BTA_GATT_BUSY; if (p_clrcb != NULL) { (*p_clrcb->p_cback)(BTA_GATTC_ASSOC_EVT, &gattc_cb); return; } } } if (p_msg->api_assoc.is_assoc) { if ((state = bta_gattc_co_cache_append_assoc_addr(p_msg->api_assoc.src_addr, p_msg->api_assoc.assoc_addr)) == TRUE) { gattc_cb.set_assoc.status = BTA_GATT_OK; } else { gattc_cb.set_assoc.status = BTA_GATT_ERROR; if (p_clrcb != NULL) { (*p_clrcb->p_cback)(BTA_GATTC_ASSOC_EVT, &gattc_cb); return; } } } else { if (( state = bta_gattc_co_cache_remove_assoc_addr(p_msg->api_assoc.src_addr, p_msg->api_assoc.assoc_addr)) == TRUE) { gattc_cb.set_assoc.status = BTA_GATT_OK; } else { gattc_cb.set_assoc.status = BTA_GATT_ERROR; if (p_clrcb != NULL) { (*p_clrcb->p_cback)(BTA_GATTC_ASSOC_EVT, &gattc_cb); return; } } } if (p_clrcb != NULL) { (*p_clrcb->p_cback)(BTA_GATTC_ASSOC_EVT, &gattc_cb); } return; } void bta_gattc_process_api_cache_get_addr_list(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC gattc_cb = {0}; tBTA_GATTC_RCB *p_clrcb = bta_gattc_cl_get_regcb(p_msg->api_get_addr.client_if); UINT8 num_addr = bta_gattc_co_get_addr_num(); gattc_cb.get_addr_list.client_if = p_msg->api_get_addr.client_if; if (num_addr != 0) { gattc_cb.get_addr_list.num_addr = num_addr; gattc_cb.get_addr_list.bda_list = (BD_ADDR *)osi_malloc(sizeof(BD_ADDR)*num_addr); if (gattc_cb.get_addr_list.bda_list != NULL) { bta_gattc_co_get_addr_list(gattc_cb.get_addr_list.bda_list); gattc_cb.get_addr_list.status = BTA_GATT_OK; } else { gattc_cb.get_addr_list.status = BTA_GATT_ERROR; } } else { gattc_cb.get_addr_list.status = BTA_GATT_NOT_FOUND; } if (p_clrcb != NULL) { (* p_clrcb->p_cback)(BTA_GATTC_GET_ADDR_LIST_EVT, &gattc_cb); } //release the address list buffer after used. if (gattc_cb.get_addr_list.bda_list != NULL) { osi_free((void *)gattc_cb.get_addr_list.bda_list); } } /******************************************************************************* ** ** Function bta_gattc_process_srvc_chg_ind ** ** Description process service change indication. ** ** Returns None. ** *******************************************************************************/ BOOLEAN bta_gattc_process_srvc_chg_ind(UINT16 conn_id, tBTA_GATTC_RCB *p_clrcb, tBTA_GATTC_SERV *p_srcb, tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_NOTIFY *p_notify, tGATT_VALUE *att_value) { tBT_UUID gattp_uuid, srvc_chg_uuid; BOOLEAN processed = FALSE; UINT8 i; gattp_uuid.len = 2; gattp_uuid.uu.uuid16 = UUID_SERVCLASS_GATT_SERVER; srvc_chg_uuid.len = 2; srvc_chg_uuid.uu.uuid16 = GATT_UUID_GATT_SRV_CHGD; const tBTA_GATTC_CHARACTERISTIC *p_char = bta_gattc_get_characteristic_srcb(p_srcb, p_notify->handle); if (p_char && bta_gattc_uuid_compare(&p_char->service->uuid, &gattp_uuid, TRUE) && bta_gattc_uuid_compare(&p_char->uuid, &srvc_chg_uuid, TRUE)) { if (att_value->len != BTA_GATTC_SERVICE_CHANGED_LEN) { APPL_TRACE_ERROR("%s: received malformed service changed indication, skipping", __func__); return FALSE; } UINT8 *p = att_value->value; UINT16 s_handle = ((UINT16)(*(p )) + (((UINT16)(*(p + 1))) << 8)); UINT16 e_handle = ((UINT16)(*(p + 2)) + (((UINT16)(*(p + 3))) << 8)); APPL_TRACE_DEBUG("%s: service changed s_handle:0x%04x e_handle:0x%04x", __func__, s_handle, e_handle); processed = TRUE; /* mark service handle change pending */ p_srcb->srvc_hdl_chg = TRUE; /* clear up all notification/indication registration */ bta_gattc_clear_notif_registration(p_srcb, conn_id, s_handle, e_handle); /* service change indication all received, do discovery update */ if ( ++ p_srcb->update_count == bta_gattc_num_reg_app()) { /* not an opened connection; or connection busy */ /* search for first available clcb and start discovery */ if (p_clcb == NULL || (p_clcb && p_clcb->p_q_cmd != NULL)) { for (i = 0 ; i < BTA_GATTC_CLCB_MAX; i ++) { if (bta_gattc_cb.clcb[i].in_use && bta_gattc_cb.clcb[i].p_srcb == p_srcb && bta_gattc_cb.clcb[i].p_q_cmd == NULL) { p_clcb = &bta_gattc_cb.clcb[i]; break; } } } /* send confirmation here if this is an indication, it should always be */ GATTC_SendHandleValueConfirm(conn_id, att_value->handle); /* if connection available, refresh cache by doing discovery now */ if (p_clcb != NULL) { tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find(p_clcb->bda); if(p_conn) { p_conn->write_remote_svc_change_ccc_done = FALSE; } bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL); } } /* notify applicationf or service change */ if (p_clrcb->p_cback != NULL) { tBTA_GATTC_SERVICE_CHANGE srvc_chg= {0}; memcpy(srvc_chg.remote_bda, p_srcb->server_bda, sizeof(BD_ADDR)); srvc_chg.conn_id = conn_id; (* p_clrcb->p_cback)(BTA_GATTC_SRVC_CHG_EVT, (tBTA_GATTC *)&srvc_chg); } } return processed; } /******************************************************************************* ** ** Function bta_gattc_proc_other_indication ** ** Description process all non-service change indication/notification. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_proc_other_indication(tBTA_GATTC_CLCB *p_clcb, UINT8 op, tGATT_CL_COMPLETE *p_data, tBTA_GATTC_NOTIFY *p_notify) { APPL_TRACE_DEBUG("bta_gattc_proc_other_indication check p_data->att_value.handle=%d p_data->handle=%d", p_data->att_value.handle, p_data->handle); APPL_TRACE_DEBUG("is_notify %d", p_notify->is_notify); p_notify->is_notify = (op == GATTC_OPTYPE_INDICATION) ? FALSE : TRUE; p_notify->len = p_data->att_value.len; bdcpy(p_notify->bda, p_clcb->bda); memcpy(p_notify->value, p_data->att_value.value, p_data->att_value.len); p_notify->conn_id = p_clcb->bta_conn_id; if (p_clcb->p_rcb->p_cback) { (*p_clcb->p_rcb->p_cback)(BTA_GATTC_NOTIF_EVT, (tBTA_GATTC *)p_notify); } } /******************************************************************************* ** ** Function bta_gattc_process_indicate ** ** Description process indication/notification. ** ** Returns None. ** *******************************************************************************/ void bta_gattc_process_indicate(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_CL_COMPLETE *p_data) { UINT16 handle = p_data->att_value.handle; tBTA_GATTC_CLCB *p_clcb ; tBTA_GATTC_RCB *p_clrcb = NULL; tBTA_GATTC_SERV *p_srcb = NULL; tBTA_GATTC_NOTIFY notify; BD_ADDR remote_bda; tBTA_GATTC_IF gatt_if; tBTA_TRANSPORT transport; if (!GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) { APPL_TRACE_ERROR("%s indication/notif for unknown app", __func__); if (op == GATTC_OPTYPE_INDICATION) { GATTC_SendHandleValueConfirm(conn_id, handle); } return; } if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) == NULL) { APPL_TRACE_ERROR("%s indication/notif for unregistered app", __func__); if (op == GATTC_OPTYPE_INDICATION) { GATTC_SendHandleValueConfirm(conn_id, handle); } return; } if ((p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL) { APPL_TRACE_ERROR("%s indication/notif for unknown device, ignore", __func__); if (op == GATTC_OPTYPE_INDICATION) { GATTC_SendHandleValueConfirm(conn_id, handle); } return; } p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); notify.handle = handle; /* if non-service change indication/notification, forward to application */ if (!bta_gattc_process_srvc_chg_ind(conn_id, p_clrcb, p_srcb, p_clcb, ¬ify, &p_data->att_value)) { /* if app registered for the notification */ if (bta_gattc_check_notif_registry(p_clrcb, p_srcb, ¬ify)) { /* connection not open yet */ if (p_clcb == NULL) { p_clcb = bta_gattc_clcb_alloc(gatt_if, remote_bda, transport); if (p_clcb == NULL) { APPL_TRACE_ERROR("No resources"); return; } p_clcb->bta_conn_id = conn_id; p_clcb->transport = transport; bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, NULL); } if (p_clcb != NULL) { bta_gattc_proc_other_indication(p_clcb, op, p_data, ¬ify); } } else if (op == GATTC_OPTYPE_INDICATION) { /* no one intersted and need ack? */ APPL_TRACE_DEBUG("%s no one interested, ack now", __func__); GATTC_SendHandleValueConfirm(conn_id, handle); } } } /******************************************************************************* ** ** Function bta_gattc_cmpl_cback ** ** Description client operation complete callback register with BTE GATT. ** ** Returns None. ** *******************************************************************************/ static void bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data) { tBTA_GATTC_CLCB *p_clcb; APPL_TRACE_DEBUG("bta_gattc_cmpl_cback: conn_id = %d op = %d status = %d", conn_id, op, status); /* notification and indication processed right away */ if (op == GATTC_OPTYPE_NOTIFICATION || op == GATTC_OPTYPE_INDICATION) { bta_gattc_process_indicate(conn_id, op, p_data); return; } /* for all other operation, not expected if w/o connection */ else if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) == NULL) { APPL_TRACE_ERROR("bta_gattc_cmpl_cback unknown conn_id = %d, ignore data", conn_id); return; } /* if over BR_EDR, inform PM for mode change */ if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) { bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda); bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda); } bta_gattc_cmpl_sendmsg(conn_id, op, status, p_data); } /******************************************************************************* ** ** Function bta_gattc_cmpl_sendmsg ** ** Description client operation complete send message ** ** Returns None. ** *******************************************************************************/ static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op, tBTA_GATT_STATUS status, tGATT_CL_COMPLETE *p_data) { const UINT16 len = sizeof(tBTA_GATTC_OP_CMPL) + sizeof(tGATT_CL_COMPLETE); tBTA_GATTC_OP_CMPL *p_buf = (tBTA_GATTC_OP_CMPL *) osi_malloc(len); if (p_buf != NULL) { memset(p_buf, 0, len); p_buf->hdr.event = BTA_GATTC_OP_CMPL_EVT; p_buf->hdr.layer_specific = conn_id; p_buf->status = status; p_buf->op_code = op; if (p_data != NULL) { p_buf->p_cmpl = (tGATT_CL_COMPLETE *)(p_buf + 1); memcpy(p_buf->p_cmpl, p_data, sizeof(tGATT_CL_COMPLETE)); } bta_sys_sendmsg(p_buf); } } /******************************************************************************* ** ** Function bta_gattc_cong_cback ** ** Description congestion callback for BTA GATT client. ** ** Returns void ** ********************************************************************************/ static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested) { tBTA_GATTC_CLCB *p_clcb; tBTA_GATTC cb_data; if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) != NULL) { if (p_clcb->p_rcb->p_cback) { cb_data.congest.conn_id = conn_id; cb_data.congest.congested = congested; (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CONGEST_EVT, &cb_data); } } } /******************************************************************************* ** ** Function bta_gattc_req_cback ** ** Description GATT request command callback for BTA GATT client. ** ** Returns void ** ********************************************************************************/ static void bta_gattc_req_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type, tGATTS_DATA *p_data) { /* GATTC doesn't need to process the GATT request commands. * Add this callback here to avoid the warning "Call back not found for application" * printed in the function gatt_sr_send_req_callback * */ UNUSED (conn_id); UNUSED (trans_id) ; UNUSED (type); UNUSED (p_data); } #if BLE_INCLUDED == TRUE /******************************************************************************* ** ** Function bta_gattc_init_clcb_conn ** ** Description Initaite a BTA CLCB connection ** ** Returns void ** ********************************************************************************/ void bta_gattc_init_clcb_conn(UINT8 cif, BD_ADDR remote_bda) { tBTA_GATTC_CLCB *p_clcb = NULL; tBTA_GATTC_DATA gattc_data; UINT16 conn_id; /* should always get the connection ID */ if (GATT_GetConnIdIfConnected(cif, remote_bda, &conn_id, BTA_GATT_TRANSPORT_LE) == FALSE) { APPL_TRACE_ERROR("bta_gattc_init_clcb_conn ERROR: not a connected device"); return; } /* initaite a new connection here */ if ((p_clcb = bta_gattc_clcb_alloc(cif, remote_bda, BTA_GATT_TRANSPORT_LE)) != NULL) { gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id; gattc_data.api_conn.client_if = cif; memcpy(gattc_data.api_conn.remote_bda, remote_bda, BD_ADDR_LEN); gattc_data.api_conn.is_direct = TRUE; bta_gattc_sm_execute(p_clcb, BTA_GATTC_API_OPEN_EVT, &gattc_data); } else { APPL_TRACE_ERROR("No resources"); } } /******************************************************************************* ** ** Function bta_gattc_process_listen_all ** ** Description process listen all, send open callback to application for all ** connected slave LE link. ** ** Returns void ** ********************************************************************************/ void bta_gattc_process_listen_all(UINT8 cif) { UINT8 i_conn = 0; tBTA_GATTC_CONN *p_conn = &bta_gattc_cb.conn_track[0]; for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++) { if (p_conn->in_use ) { if (bta_gattc_find_clcb_by_cif(cif, p_conn->remote_bda, BTA_GATT_TRANSPORT_LE) == NULL) { bta_gattc_init_clcb_conn(cif, p_conn->remote_bda); } /* else already connected */ } } } /******************************************************************************* ** ** Function bta_gattc_listen ** ** Description Start or stop a listen for connection ** ** Returns void ** ********************************************************************************/ void bta_gattc_listen(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if); tBTA_GATTC cb_data; UNUSED(p_cb); cb_data.reg_oper.status = BTA_GATT_ERROR; cb_data.reg_oper.client_if = p_msg->api_listen.client_if; if (p_clreg == NULL) { APPL_TRACE_ERROR("bta_gattc_listen failed, unknown client_if: %d", p_msg->api_listen.client_if); return; } /* mark bg conn record */ if (bta_gattc_mark_bg_conn(p_msg->api_listen.client_if, (BD_ADDR_PTR) p_msg->api_listen.remote_bda, p_msg->api_listen.start, TRUE)) { if (!GATT_Listen(p_msg->api_listen.client_if, p_msg->api_listen.start, p_msg->api_listen.remote_bda)) { APPL_TRACE_ERROR("Listen failure"); (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data); } else { cb_data.status = BTA_GATT_OK; (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data); if (p_msg->api_listen.start) { /* if listen to a specific target */ if (p_msg->api_listen.remote_bda != NULL) { /* if is a connected remote device */ if (L2CA_GetBleConnRole(p_msg->api_listen.remote_bda) == HCI_ROLE_SLAVE && bta_gattc_find_clcb_by_cif(p_msg->api_listen.client_if, p_msg->api_listen.remote_bda, BTA_GATT_TRANSPORT_LE) == NULL) { bta_gattc_init_clcb_conn(p_msg->api_listen.client_if, p_msg->api_listen.remote_bda); } } /* if listen to all */ else { APPL_TRACE_DEBUG("Listen For All now"); /* go through all connected device and send callback for all connected slave connection */ bta_gattc_process_listen_all(p_msg->api_listen.client_if); } } } } } /******************************************************************************* ** ** Function bta_gattc_broadcast ** ** Description Start or stop broadcasting ** ** Returns void ** ********************************************************************************/ void bta_gattc_broadcast(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg) { tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if); tBTA_GATTC cb_data; UNUSED(p_cb); cb_data.reg_oper.client_if = p_msg->api_listen.client_if; cb_data.reg_oper.status = BTM_BleBroadcast(p_msg->api_listen.start, NULL); //TODO need modify callback if used if (p_clreg && p_clreg->p_cback) { (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data); } } /******************************************************************************* ** ** Function bta_gattc_register_service_change_notify ** ** Description Find remote device's gatt service change characteristic ccc's handle and write 2 to this ** this ccc. ** ** Returns Return result of service change ccc service discovery result ** *******************************************************************************/ tBTA_GATTC_FIND_SERVICE_CB bta_gattc_register_service_change_notify(UINT16 conn_id, BD_ADDR remote_bda) { tBTA_GATTC_SERV *p_srcb = NULL; list_t *p_cache = NULL; tBTA_GATTC_SERVICE *p_service = NULL; tBTA_GATTC_CHARACTERISTIC *p_char = NULL; tBTA_GATTC_DESCRIPTOR *p_desc = NULL; tBTA_GATTC_FIND_SERVICE_CB result; BOOLEAN gatt_cache_found = FALSE; BOOLEAN gatt_service_found = FALSE; BOOLEAN gatt_service_change_found = FALSE; BOOLEAN gatt_ccc_found = FALSE; tBT_UUID gatt_service_uuid = {LEN_UUID_16, {UUID_SERVCLASS_GATT_SERVER}}; tBT_UUID gatt_service_change_uuid = {LEN_UUID_16, {GATT_UUID_GATT_SRV_CHGD}}; tBT_UUID gatt_ccc_uuid = {LEN_UUID_16, {GATT_UUID_CHAR_CLIENT_CONFIG}}; tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find_alloc(remote_bda); if(p_conn && p_conn->write_remote_svc_change_ccc_done) { return SERVICE_CHANGE_CCC_WRITTEN_SUCCESS; } p_srcb = bta_gattc_find_srcb(remote_bda); if ((p_srcb != NULL) && (p_srcb->p_srvc_cache != NULL)) { p_cache = p_srcb->p_srvc_cache; gatt_cache_found = TRUE; } else { result = SERVICE_CHANGE_CACHE_NOT_FOUND; } /* start to find gatt service */ if (gatt_cache_found == TRUE) { for (list_node_t *sn = list_begin(p_cache); sn != list_end(p_cache); sn = list_next(sn)) { p_service = list_node(sn); if (bta_gattc_uuid_compare(&gatt_service_uuid, &p_service->uuid, TRUE)) { gatt_service_found = TRUE; break; } } } else { result = SERVICE_CHANGE_CACHE_NOT_FOUND; } /* start to find gatt service change characteristic */ if (gatt_service_found == TRUE) { if (p_service->characteristics) { for (list_node_t *cn = list_begin(p_service->characteristics); cn != list_end(p_service->characteristics); cn = list_next(cn)) { p_char = list_node(cn); if (bta_gattc_uuid_compare(&gatt_service_change_uuid, &p_char->uuid, TRUE)) { gatt_service_change_found = TRUE; break; } } } } else if (gatt_cache_found == TRUE) { /* Gatt service not found, start a timer to wait for service discovery */ result = SERVICE_CHANGE_SERVICE_NOT_FOUND; } /* start to find gatt service change characteristic ccc */ if (gatt_service_change_found == TRUE) { if (p_char->descriptors) { for (list_node_t *dn = list_begin(p_char->descriptors); dn != list_end(p_char->descriptors); dn = list_next(dn)) { p_desc = list_node(dn); if (bta_gattc_uuid_compare(&gatt_ccc_uuid, &p_desc->uuid, TRUE)) { gatt_ccc_found = TRUE; break; } } } } else if (gatt_service_found ==TRUE) { /* Gatt service found, but service change char not found, * Case1: remote device doesn't have service change char, we don't need to start a timer here to * wait for service discovery * Case2: remote device exist service change char, we have found gatt service, but have not found * service change char, we need to start a timer here*/ result = SERVICE_CHANGE_CHAR_NOT_FOUND; } if (gatt_ccc_found == TRUE){ if (p_conn) { p_conn->svc_change_descr_handle = p_desc->handle; p_conn->write_remote_svc_change_ccc_done = TRUE; } result = SERVICE_CHANGE_CCC_WRITTEN_SUCCESS; uint16_t indicate_value = GATT_CLT_CONFIG_INDICATION; tBTA_GATT_UNFMT indicate_v; indicate_v.len = 2; indicate_v.p_value = (uint8_t *)&indicate_value; BTA_GATTC_WriteCharDescr (conn_id, p_desc->handle, BTA_GATTC_TYPE_WRITE, &indicate_v, BTA_GATT_AUTH_REQ_NONE); } else if (gatt_service_change_found == TRUE) { /* Gatt service char found, but service change char ccc not found, * Case1: remote device doesn't have service change char ccc, we don't need to start a timer here to * wait for service discovery * Case2: remote device exist service change char ccc, we have found gatt service change char, but have not found * service change char ccc, we need to start a timer here */ result = SERVICE_CHANGE_CCC_NOT_FOUND; } return result; } #endif #endif ///GATTC_INCLUDED == TRUE && BLE_INCLUDED == TRUE