/** **************************************************************************************** * * @file button_pro.c * * @brief Application entry point * * Copyright (C) Espressif 2016 * Created by Yulong at 2016/8/18 * * **************************************************************************************** */ #include #include #include #include #include "bt_target.h" #include "bt_trace.h" #include "bt_types.h" #include "gatt_api.h" #include "bta_api.h" #include "bta_gatt_api.h" #include "bta_gatts_int.h" #include "button_pro.h" #define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0])) tBUTTON_CB_ENV button_cb_env; /***************************************************************************** ** Constants *****************************************************************************/ static void button_profile_cb(tBTA_GATTS_EVT event, tBTA_GATTS *p_data); /******************************************************************************* ** ** Function button_profile_cb ** ** Description the callback function after the profile has been register to the BTA manager module ** ** Returns NULL ** *******************************************************************************/ static void button_profile_cb(tBTA_GATTS_EVT event, tBTA_GATTS *p_data) { tBTA_GATTS_RSP rsp; tBT_UUID uuid = {LEN_UUID_16, {ATT_SVC_BUTTON}}; tBUT_INST *p_inst = &button_cb_env.button_inst; UINT8 net_event = 0xff; UINT8 len = 0; UINT8 *p_rec_data = NULL; //LOG_ERROR("p_data->status = %x\n",p_data->status); //if(p_data->status != BTA_GATT_OK){ // LOG_ERROR("button profile register failed\n"); // return; //} LOG_ERROR("button profile cb event = %x\n",event); switch(event) { case BTA_GATTS_REG_EVT: LOG_ERROR("p_data->reg_oper.status = %x\n",p_data->reg_oper.status); LOG_ERROR("(p_data->reg_oper.uuid.uu.uuid16=%x\n",p_data->reg_oper.uuid.uu.uuid16); if(p_data->reg_oper.status != BTA_GATT_OK) { LOG_ERROR("button profile register failed\n"); } button_cb_env.gatt_if = p_data->reg_oper.server_if; button_cb_env.enabled = true; //button_cb_env.button_inst.app_id = p_data->reg_oper.uuid; //create the button service to the service data base. if(p_data->reg_oper.uuid.uu.uuid16 == ATT_SVC_BUTTON) { Button_CreateService(); } break; case BTA_GATTS_READ_EVT: //tBTA_GATTS_RSP rsp; memset(&rsp,0,sizeof(tBTA_GATTS_API_RSP)); rsp.attr_value.handle = p_data->req_data.p_data->read_req.handle; rsp.attr_value.len = 2; BTA_GATTS_SendRsp(p_data->req_data.conn_id,p_data->req_data.trans_id, p_data->req_data.status,&rsp); break; case BTA_GATTS_WRITE_EVT: BTA_GATTS_SendRsp(p_data->req_data.conn_id,p_data->req_data.trans_id, p_data->req_data.status,NULL); LOG_ERROR("Received button data:"); for(int i = 0; i < p_data->req_data.p_data->write_req.len; i++){ LOG_ERROR("%x",p_data->req_data.p_data->write_req.value[i]); } LOG_ERROR("\n"); if(p_data->req_data.p_data->write_req.handle == button_cb_env.button_inst.but_wirt_hdl){ p_rec_data = &p_data->req_data.p_data->write_req.value[0]; // button_msg_notify(len,p_rec_data); (*p_inst->p_cback)(button_cb_env.button_inst.app_id,net_event,len,p_rec_data); } break; case BTA_GATTS_CONF_EVT: break; case BTA_GATTS_CREATE_EVT: //tBT_UUID uuid_butt_write; uuid.uu.uuid16 = ATT_CHAR_BUTTON_WIT; //tBTA_GATT_PERM perm = (GATT_PERM_WRITE|GATT_PERM_READ); //tBTA_GATT_CHAR_PROP prop = (GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_WRITE); //uuid = {LEN_UUID_16, {ATT_SVC_BUTTON}}; button_cb_env.clcb.cur_srvc_id= p_data->create.service_id; button_cb_env.is_primery = p_data->create.is_primary; //uuid = {LEN_UUID_16, {ATT_CHAR_BUTTON_WIT}}; //start the button service after created BTA_GATTS_StartService(p_data->create.service_id,BTA_GATT_TRANSPORT_LE); //add the frist button characteristic --> write characteristic BTA_GATTS_AddCharacteristic(button_cb_env.clcb.cur_srvc_id,&uuid, (GATT_PERM_WRITE|GATT_PERM_READ), (GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_WRITE)); break; case BTA_GATTS_ADD_CHAR_EVT: if(p_data->add_result.char_uuid.uu.uuid16 == ATT_CHAR_BUTTON_WIT) { uuid.uu.uuid16 = ATT_CHAR_BUTTON_NTF; //tBTA_GATT_PERM perm = GATT_PERM_READ; tBTA_GATT_CHAR_PROP prop = (GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_NOTIFY); //save the att handle to the env button_cb_env.button_inst.but_wirt_hdl = p_data->add_result.attr_id; //add the frist button characteristic --> Notify characteristic BTA_GATTS_AddCharacteristic(button_cb_env.clcb.cur_srvc_id,&uuid, GATT_PERM_READ,(GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_NOTIFY)); }else if(p_data->add_result.char_uuid.uu.uuid16 == ATT_CHAR_BUTTON_NTF){ // add the gattc config descriptor to the notify charateristic //tBTA_GATT_PERM perm = (GATT_PERM_WRITE|GATT_PERM_WRITE); uuid.uu.uuid16 = GATT_UUID_CHAR_CLIENT_CONFIG; button_cb_env.button_inst.but_ntf_hdl = p_data->add_result.attr_id; BTA_GATTS_AddCharDescriptor (button_cb_env.clcb.cur_srvc_id, (GATT_PERM_WRITE|GATT_PERM_WRITE), &uuid); } break; case BTA_GATTS_ADD_CHAR_DESCR_EVT: if(p_data->add_result.char_uuid.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG) { button_cb_env.button_inst.but_cfg_hdl = p_data->add_result.attr_id; } break; case BTA_GATTS_CONNECT_EVT: //set the connection flag to true button_env_clcb_alloc(p_data->conn.conn_id, p_data->conn.remote_bda); break; case BTA_GATTS_DISCONNECT_EVT: //set the connection flag to true button_cb_env.clcb.connected = false; break; case BTA_GATTS_OPEN_EVT: break; case BTA_GATTS_CLOSE_EVT: if(button_cb_env.clcb.connected && (button_cb_env.clcb.conn_id == p_data->conn.conn_id)) { //set the connection channal congested flag to true button_cb_env.clcb.congest = p_data->congest.congested; } break; case BTA_GATTS_LISTEN_EVT: break; case BTA_GATTS_CONGEST_EVT: break; default: break; } } /******************************************************************************* ** ** Function Button_CreateService ** ** Description Create a Service for the button profile ** ** Returns NULL ** *******************************************************************************/ void Button_CreateService(void) { tBTA_GATTS_IF server_if ; tBT_UUID uuid = {LEN_UUID_16, {ATT_SVC_BUTTON}}; UINT16 num_handle = KEY_IDX_NB; UINT8 inst = 0x00; server_if = button_cb_env.gatt_if; button_cb_env.inst_id = inst; //if(!button_cb_env.enabled) //{ // LOG_ERROR("button service added error."); //} BTA_GATTS_CreateService(server_if,&uuid,inst,num_handle,true); } /******************************************************************************* ** ** Function button_env_clcb_alloc ** ** Description The function allocates a GATT profile connection link control block ** ** Returns NULL if not found. Otherwise pointer to the connection link block. ** *******************************************************************************/ tBUT_CLCB *button_env_clcb_alloc (UINT16 conn_id, BD_ADDR remote_bda) { tBUT_CLCB *p_clcb = NULL; p_clcb = &button_cb_env.clcb; if(!p_clcb->in_use) { p_clcb->in_use = TRUE; p_clcb->conn_id = conn_id; LOG_ERROR("p_clcb->conn_id = %x\n",conn_id); p_clcb->connected = TRUE; memcpy(p_clcb->remote_bda,remote_bda,BD_ADDR_LEN); } return p_clcb; } /******************************************************************************* ** ** Function button_env_find_conn_id_by_bd_adddr ** ** Description The function searches all LCB with macthing bd address ** ** Returns total number of clcb found. ** *******************************************************************************/ UINT16 button_env_find_conn_id_by_bd_adddr(BD_ADDR remote_bda) { UINT8 i_clcb; tBUT_CLCB *p_clcb = NULL; for(i_clcb = 0, p_clcb = &button_cb_env.clcb; i_clcb < BUTT_MAX_APPS; i_clcb++, p_clcb++) { if(p_clcb->in_use && p_clcb->connected &&memcmp(p_clcb->remote_bda,remote_bda,BD_ADDR_LEN)) { return p_clcb->conn_id; } } return GATT_INVALID_CONN_ID; } /******************************************************************************* ** ** Function button_env_clcb_dealloc ** ** Description The function deallocates a GATT profile connection link control block ** ** Returns True the deallocation is successful ** *******************************************************************************/ /* BOOLEAN button_env_clcb_dealloc(UINT16 conn_id) { UINT8 i_clcb = 0; tBUT_CLCB *p_clcb = NULL; for(i_clcb = 0, p_clcb = &button_cb_env.clcb; i_clcb < BUTT_MAX_APPS; i_clcb++, p_clcb++) { if(p_clcb->in_use && p_clcb->connected && (p_clcb->conn_id == conn_id)) { unsigned j; for(j = 0; j < ARRAY_SIZE(p_clcb->button_value.data_string);j++) { if(p_clcb->button_value.data_string[j]) { GKI_freebuf(p_clcb->button_value.data_string[j]); } } memset(p_clcb, 0, sizeof(tBUT_CLCB)); return TRUE; } } return FALSE; }*/ /******************************************************************************* ** ** Function button_init ** ** Description Initializa the GATT Service for button profiles. ** *******************************************************************************/ tGATT_STATUS button_init (tBU_CBACK *call_back) { tBT_UUID app_uuid = {LEN_UUID_16,{ATT_SVC_BUTTON}}; if(button_cb_env.enabled) { LOG_ERROR("button svc already initaliezd"); return GATT_ERROR; } else { memset(&button_cb_env,0,sizeof(tBUTTON_CB_ENV)); } if(call_back != NULL) { button_cb_env.button_inst.p_cback = call_back; } /* register the button profile to the BTA_GATTS module*/ BTA_GATTS_AppRegister(&app_uuid,button_profile_cb); button_cb_env.enabled = TRUE; return GATT_SUCCESS; } void button_msg_notify(UINT8 len, UINT8 *button_msg) { BOOLEAN conn_status = button_cb_env.clcb.connected; UINT16 conn_id = button_cb_env.clcb.conn_id; UINT16 attr_id = button_cb_env.button_inst.but_ntf_hdl; //notify rsp==false; indicate rsp==true. BOOLEAN rsp = false; if(!conn_status && button_cb_env.clcb.congest) { LOG_ERROR("the conneciton for button profile has been loss"); return; } BTA_GATTS_HandleValueIndication (conn_id, attr_id, len, button_msg, rsp); }