/************************************************************************************************** Filename: simpleBLECentral.c Revised: $Date: 2011-06-20 11:57:59 -0700 (Mon, 20 Jun 2011) $ Revision: $Revision: 28 $ Description: This file contains the Simple BLE Central sample application for use with the CC2540 Bluetooth Low Energy Protocol Stack. Copyright 2010 Texas Instruments Incorporated. All rights reserved. IMPORTANT: Your use of this Software is limited to those specific rights granted under the terms of a software license agreement between the user who downloaded the software, his/her employer (which must be your employer) and Texas Instruments Incorporated (the "License"). You may not use this Software unless you agree to abide by the terms of the License. The License limits your use, and you acknowledge, that the Software may not be modified, copied or distributed unless embedded on a Texas Instruments microcontroller or used solely and exclusively in conjunction with a Texas Instruments radio frequency transceiver, which is integrated into your product. Other than for the foregoing purpose, you may not use, reproduce, copy, prepare derivative works of, modify, distribute, perform, display or sell this Software and/or its documentation for any purpose. YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 揂S IS?WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS. Should you have any questions regarding your right to use this Software, contact Texas Instruments Incorporated at www.TI.com. **************************************************************************************************/ /********************************************************************* * INCLUDES */ #include "bcomdef.h" #include "OSAL.h" #include "OSAL_PwrMgr.h" #include "OnBoard.h" #include "hal_led.h" #include "hal_key.h" #include "hal_lcd.h" #include "gatt.h" #include "ll.h" #include "hci.h" #include "gapgattserver.h" #include "gattservapp.h" #include "central.h" #include "gapbondmgr.h" #include "simpleGATTprofile.h" #include "simpleBLECentral.h" #include "npi.h" #include "simpleble.h" /********************************************************************* * MACROS */ // Length of bd addr as a string #define B_ADDR_STR_LEN 15 /********************************************************************* * CONSTANTS */ // Maximum number of scan responses #define DEFAULT_MAX_SCAN_RES 8 // Scan duration in ms #define DEFAULT_SCAN_DURATION 1000//4000 默认扫描时间 ms // Discovey mode (limited, general, all) #define DEFAULT_DISCOVERY_MODE DEVDISC_MODE_ALL // TRUE to use active scan #define DEFAULT_DISCOVERY_ACTIVE_SCAN TRUE // TRUE to use white list during discovery #define DEFAULT_DISCOVERY_WHITE_LIST FALSE // TRUE to use high scan duty cycle when creating link #define DEFAULT_LINK_HIGH_DUTY_CYCLE FALSE // TRUE to use white list when creating link #define DEFAULT_LINK_WHITE_LIST FALSE // Default RSSI polling period in ms #define DEFAULT_RSSI_PERIOD 1000 // Whether to enable automatic parameter update request when a connection is formed #define DEFAULT_ENABLE_UPDATE_REQUEST FALSE // Minimum connection interval (units of 1.25ms) if automatic parameter update request is enabled #define DEFAULT_UPDATE_MIN_CONN_INTERVAL 8//400 连接间隔与数据发送量有关， 连接间隔越短， 单位时间内就能发送越多的数据 // Maximum connection interval (units of 1.25ms) if automatic parameter update request is enabled #define DEFAULT_UPDATE_MAX_CONN_INTERVAL 8//800 连接间隔与数据发送量有关， 连接间隔越短， 单位时间内就能发送越多的数据 // Slave latency to use if automatic parameter update request is enabled #define DEFAULT_UPDATE_SLAVE_LATENCY 0 // Supervision timeout value (units of 10ms) if automatic parameter update request is enabled #define DEFAULT_UPDATE_CONN_TIMEOUT 100//600 // Default passcode #define DEFAULT_PASSCODE 19655 // Default GAP pairing mode #define DEFAULT_PAIRING_MODE GAPBOND_PAIRING_MODE_WAIT_FOR_REQ // Default MITM mode (TRUE to require passcode or OOB when pairing) #define DEFAULT_MITM_MODE FALSE // Default bonding mode, TRUE to bond #define DEFAULT_BONDING_MODE TRUE // Default GAP bonding I/O capabilities #define DEFAULT_IO_CAPABILITIES GAPBOND_IO_CAP_DISPLAY_ONLY // Default service discovery timer delay in ms #define DEFAULT_SVC_DISCOVERY_DELAY 1000 // TRUE to filter discovery results on desired service UUID #define DEFAULT_DEV_DISC_BY_SVC_UUID TRUE // Discovery states enum { BLE_DISC_STATE_IDLE, // Idle BLE_DISC_STATE_SVC, // Service discovery BLE_DISC_STATE_CHAR // Characteristic discovery }; /********************************************************************* * TYPEDEFS */ /********************************************************************* * GLOBAL VARIABLES */ /********************************************************************* * EXTERNAL VARIABLES */ /********************************************************************* * EXTERNAL FUNCTIONS */ /********************************************************************* * LOCAL VARIABLES */ // Task ID for internal task/event processing uint8 simpleBLETaskId; // GAP GATT Attributes static const uint8 simpleBLEDeviceName[GAP_DEVICE_NAME_LEN] = "Simple BLE Central"; // Number of scan results and scan result index static uint8 simpleBLEScanRes; //扫描结果 //static uint8 simpleBLEScanIdx; // Scan result list static gapDevRec_t simpleBLEDevList[DEFAULT_MAX_SCAN_RES]; // Scanning state static uint8 simpleBLEScanning = FALSE; // RSSI polling state static uint8 simpleBLERssi = FALSE; // Connection handle of current connection static uint16 simpleBLEConnHandle = GAP_CONNHANDLE_INIT; // Application state uint8 simpleBLEState = BLE_STATE_IDLE; // Discovery state static uint8 simpleBLEDiscState = BLE_DISC_STATE_IDLE; // Discovered service start and end handle static uint16 simpleBLESvcStartHdl = 0; static uint16 simpleBLESvcEndHdl = 0; // Discovered characteristic handle uint16 simpleBLECharHdl = 0; uint16 simpleBLECharHd6 = 0; bool simpleBLEChar6DoWrite = TRUE; bool simpleBLECentralCanSend = FALSE; // 主机可发送数据 // Value to write //static uint8 simpleBLECharVal = 0; // Value read/write toggle //static bool simpleBLEDoWrite = FALSE; // GATT read/write procedure state //static bool simpleBLEProcedureInProgress = FALSE; /********************************************************************* * LOCAL FUNCTIONS */ static void simpleBLECentralProcessGATTMsg( gattMsgEvent_t *pMsg ); static void simpleBLECentralRssiCB( uint16 connHandle, int8 rssi ); static void simpleBLECentralEventCB( gapCentralRoleEvent_t *pEvent ); static void simpleBLECentralPasscodeCB( uint8 *deviceAddr, uint16 connectionHandle, uint8 uiInputs, uint8 uiOutputs ); static void simpleBLECentralPairStateCB( uint16 connHandle, uint8 state, uint8 status ); static void simpleBLECentral_HandleKeys( uint8 shift, uint8 keys ); static void simpleBLECentral_ProcessOSALMsg( osal_event_hdr_t *pMsg ); static void simpleBLEGATTDiscoveryEvent( gattMsgEvent_t *pMsg ); static void simpleBLECentralStartDiscovery( void ); static bool simpleBLEFindSvcUuid( uint16 uuid, uint8 *pData, uint8 dataLen ); static void simpleBLEAddDeviceInfo( uint8 *pAddr, uint8 addrType ); /********************************************************************* * PROFILE CALLBACKS */ // GAP Role Callbacks static const gapCentralRoleCB_t simpleBLERoleCB = { simpleBLECentralRssiCB, // RSSI callback simpleBLECentralEventCB // Event callback }; // Bond Manager Callbacks static const gapBondCBs_t simpleBLEBondCB = { simpleBLECentralPasscodeCB, simpleBLECentralPairStateCB }; /********************************************************************* * PUBLIC FUNCTIONS */ /********************************************************************* * @fn SimpleBLECentral_Init * * @brief Initialization function for the Simple BLE Central App Task. * This is called during initialization and should contain * any application specific initialization (ie. hardware * initialization/setup, table initialization, power up * notification). * * @param task_id - the ID assigned by OSAL. This ID should be * used to send messages and set timers. * * @return none */ void SimpleBLECentral_Init( uint8 task_id ) { simpleBLETaskId = task_id; // Setup Central Profile { uint8 scanRes = DEFAULT_MAX_SCAN_RES; GAPCentralRole_SetParameter ( GAPCENTRALROLE_MAX_SCAN_RES, sizeof( uint8 ), &scanRes ); } // Setup GAP GAP_SetParamValue( TGAP_GEN_DISC_SCAN, DEFAULT_SCAN_DURATION ); GAP_SetParamValue( TGAP_LIM_DISC_SCAN, DEFAULT_SCAN_DURATION ); GGS_SetParameter( GGS_DEVICE_NAME_ATT, GAP_DEVICE_NAME_LEN, (uint8 *) simpleBLEDeviceName ); // Setup the GAP Bond Manager { uint32 passkey = DEFAULT_PASSCODE; uint8 pairMode = DEFAULT_PAIRING_MODE; uint8 mitm = DEFAULT_MITM_MODE; uint8 ioCap = DEFAULT_IO_CAPABILITIES; uint8 bonding = DEFAULT_BONDING_MODE; GAPBondMgr_SetParameter( GAPBOND_DEFAULT_PASSCODE, sizeof( uint32 ), &passkey ); GAPBondMgr_SetParameter( GAPBOND_PAIRING_MODE, sizeof( uint8 ), &pairMode ); GAPBondMgr_SetParameter( GAPBOND_MITM_PROTECTION, sizeof( uint8 ), &mitm ); GAPBondMgr_SetParameter( GAPBOND_IO_CAPABILITIES, sizeof( uint8 ), &ioCap ); GAPBondMgr_SetParameter( GAPBOND_BONDING_ENABLED, sizeof( uint8 ), &bonding ); } // Initialize GATT Client VOID GATT_InitClient(); // Register to receive incoming ATT Indications/Notifications GATT_RegisterForInd( simpleBLETaskId ); // Initialize GATT attributes GGS_AddService( GATT_ALL_SERVICES ); // GAP GATTServApp_AddService( GATT_ALL_SERVICES ); // GATT attributes // Register for all key events - This app will handle all key events RegisterForKeys( simpleBLETaskId ); // makes sure LEDs are off HalLedSet( (HAL_LED_1 | HAL_LED_2), HAL_LED_MODE_OFF ); // Setup a delayed profile startup osal_set_event( simpleBLETaskId, START_DEVICE_EVT ); } void simpleBLEStartScan() { LCD_WRITE_STRING( "--simpleBLEStartScan", HAL_LCD_LINE_2 ); //Serial_Delay(10); simpleBLECentralCanSend = FALSE; //开机后就马上进行，自动开始搜索 if ( !simpleBLEScanning & simpleBLEScanRes == 0 ) { simpleBLEScanning = TRUE; simpleBLEScanRes = 0; GAPCentralRole_StartDiscovery( DEFAULT_DISCOVERY_MODE, DEFAULT_DISCOVERY_ACTIVE_SCAN, DEFAULT_DISCOVERY_WHITE_LIST ); LCD_WRITE_STRING( "Scanning...", HAL_LCD_LINE_1 ); } else { LCD_WRITE_STRING( "No Scan", HAL_LCD_LINE_1 ); } } /********************************************************************* * @fn SimpleBLECentral_ProcessEvent * * @brief Simple BLE Central Application Task event processor. This function * is called to process all events for the task. Events * include timers, messages and any other user defined events. * * @param task_id - The OSAL assigned task ID. * @param events - events to process. This is a bit map and can * contain more than one event. * * @return events not processed */ uint16 SimpleBLECentral_ProcessEvent( uint8 task_id, uint16 events ) { VOID task_id; // OSAL required parameter that isn't used in this function if ( events & SYS_EVENT_MSG ) { uint8 *pMsg; if ( (pMsg = osal_msg_receive( simpleBLETaskId )) != NULL ) { simpleBLECentral_ProcessOSALMsg( (osal_event_hdr_t *)pMsg ); // Release the OSAL message VOID osal_msg_deallocate( pMsg ); } // return unprocessed events return (events ^ SYS_EVENT_MSG); } if ( events & START_DEVICE_EVT ) { // Start the Device VOID GAPCentralRole_StartDevice( (gapCentralRoleCB_t *) &simpleBLERoleCB ); // Register with bond manager after starting device GAPBondMgr_Register( (gapBondCBs_t *) &simpleBLEBondCB ); simpleBLEStartScan(); osal_start_timerEx( simpleBLETaskId, SBP_PERIODIC_EVT, SBP_PERIODIC_EVT_PERIOD ); CheckKeyForSetAllParaDefault(); //按键按下3秒， 回复出厂设置 return ( events ^ START_DEVICE_EVT ); } if ( events & SBP_PERIODIC_EVT ) { // Restart timer if ( SBP_PERIODIC_EVT_PERIOD ) { osal_start_timerEx( simpleBLETaskId, SBP_PERIODIC_EVT, SBP_PERIODIC_EVT_PERIOD ); } // Perform periodic application task performPeriodicTask(); if ( simpleBLEState == BLE_STATE_CONNECTED ) { if ( !simpleBLERssi ) { simpleBLERssi = TRUE; GAPCentralRole_StartRssi( simpleBLEConnHandle, DEFAULT_RSSI_PERIOD ); LCD_WRITE_STRING( "RSSI Start...", HAL_LCD_LINE_1 ); } } else { if(simpleBLERssi) { GAPCentralRole_CancelRssi( simpleBLEConnHandle ); LCD_WRITE_STRING( "RSSI Cancelled", HAL_LCD_LINE_1 ); } } return (events ^ SBP_PERIODIC_EVT); } if ( events & START_DISCOVERY_EVT ) { simpleBLECentralStartDiscovery( ); return ( events ^ START_DISCOVERY_EVT ); } // Discard unknown events return 0; } /********************************************************************* * @fn simpleBLECentral_ProcessOSALMsg * * @brief Process an incoming task message. * * @param pMsg - message to process * * @return none */ static void simpleBLECentral_ProcessOSALMsg( osal_event_hdr_t *pMsg ) { switch ( pMsg->event ) { case KEY_CHANGE: simpleBLECentral_HandleKeys( ((keyChange_t *)pMsg)->state, ((keyChange_t *)pMsg)->keys ); break; case GATT_MSG_EVENT: simpleBLECentralProcessGATTMsg( (gattMsgEvent_t *) pMsg ); break; } } /********************************************************************* * @fn simpleBLECentral_HandleKeys * * @brief Handles all key events for this device. * * @param shift - true if in shift/alt. * @param keys - bit field for key events. Valid entries: * HAL_KEY_SW_2 * HAL_KEY_SW_1 * * @return none */ uint8 gStatus; static void simpleBLECentral_HandleKeys( uint8 shift, uint8 keys ) { (void)shift; // Intentionally unreferenced parameter #if 0 if ( keys & HAL_KEY_UP ) { LCD_WRITE_STRING( "HAL_KEY_UP", HAL_LCD_LINE_7 ); // Start or stop discovery if ( simpleBLEState != BLE_STATE_CONNECTED ) { if ( !simpleBLEScanning ) { simpleBLEScanning = TRUE; simpleBLEScanRes = 0; LCD_WRITE_STRING( "Discovering...", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( "", HAL_LCD_LINE_2 ); GAPCentralRole_StartDiscovery( DEFAULT_DISCOVERY_MODE, DEFAULT_DISCOVERY_ACTIVE_SCAN, DEFAULT_DISCOVERY_WHITE_LIST ); } else { GAPCentralRole_CancelDiscovery(); } } else if ( simpleBLEState == BLE_STATE_CONNECTED && simpleBLECharHdl != 0 && simpleBLEProcedureInProgress == FALSE ) { uint8 status; // Do a read or write as long as no other read or write is in progress if ( simpleBLEDoWrite ) { // Do a write attWriteReq_t req; req.handle = simpleBLECharHdl; req.len = 1; req.value[0] = simpleBLECharVal; req.sig = 0; req.cmd = 0; status = GATT_WriteCharValue( simpleBLEConnHandle, &req, simpleBLETaskId ); } else { // Do a read attReadReq_t req; req.handle = simpleBLECharHdl; status = GATT_ReadCharValue( simpleBLEConnHandle, &req, simpleBLETaskId ); } if ( status == SUCCESS ) { simpleBLEProcedureInProgress = TRUE; simpleBLEDoWrite = !simpleBLEDoWrite; } } } if ( keys & HAL_KEY_LEFT ) { LCD_WRITE_STRING( "HAL_KEY_LEFT", HAL_LCD_LINE_7 ); // Display discovery results if ( !simpleBLEScanning && simpleBLEScanRes > 0 ) { // Increment index of current result (with wraparound) simpleBLEScanIdx++; if ( simpleBLEScanIdx >= simpleBLEScanRes ) { simpleBLEScanIdx = 0; } LCD_WRITE_STRING_VALUE( "Device", simpleBLEScanIdx + 1, 10, HAL_LCD_LINE_1 ); LCD_WRITE_STRING( bdAddr2Str( simpleBLEDevList[simpleBLEScanIdx].addr ), HAL_LCD_LINE_2 ); } } if ( keys & HAL_KEY_RIGHT ) { LCD_WRITE_STRING( "HAL_KEY_RIGHT", HAL_LCD_LINE_7 ); // Connection update if ( simpleBLEState == BLE_STATE_CONNECTED ) { GAPCentralRole_UpdateLink( simpleBLEConnHandle, DEFAULT_UPDATE_MIN_CONN_INTERVAL, DEFAULT_UPDATE_MAX_CONN_INTERVAL, DEFAULT_UPDATE_SLAVE_LATENCY, DEFAULT_UPDATE_CONN_TIMEOUT ); } } if ( keys & HAL_KEY_CENTER ) { uint8 addrType; uint8 *peerAddr; LCD_WRITE_STRING( "HAL_KEY_CENTER", HAL_LCD_LINE_7 ); // Connect or disconnect if ( simpleBLEState == BLE_STATE_IDLE ) { // if there is a scan result if ( simpleBLEScanRes > 0 ) { // connect to current device in scan result peerAddr = simpleBLEDevList[simpleBLEScanIdx].addr; addrType = simpleBLEDevList[simpleBLEScanIdx].addrType; simpleBLEState = BLE_STATE_CONNECTING; GAPCentralRole_EstablishLink( DEFAULT_LINK_HIGH_DUTY_CYCLE, DEFAULT_LINK_WHITE_LIST, addrType, peerAddr ); LCD_WRITE_STRING( "Connecting", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( bdAddr2Str( peerAddr ), HAL_LCD_LINE_2 ); } } else if ( simpleBLEState == BLE_STATE_CONNECTING || simpleBLEState == BLE_STATE_CONNECTED ) { // disconnect simpleBLEState = BLE_STATE_DISCONNECTING; gStatus = GAPCentralRole_TerminateLink( simpleBLEConnHandle ); LCD_WRITE_STRING( "Disconnecting", HAL_LCD_LINE_1 ); } } if ( keys & HAL_KEY_DOWN ) { LCD_WRITE_STRING( "HAL_KEY_DOWN", HAL_LCD_LINE_7 ); // Start or cancel RSSI polling if ( simpleBLEState == BLE_STATE_CONNECTED ) { if ( !simpleBLERssi ) { simpleBLERssi = TRUE; GAPCentralRole_StartRssi( simpleBLEConnHandle, DEFAULT_RSSI_PERIOD ); } else { simpleBLERssi = FALSE; GAPCentralRole_CancelRssi( simpleBLEConnHandle ); LCD_WRITE_STRING( "RSSI Cancelled", HAL_LCD_LINE_1 ); } } } #endif } /********************************************************************* * @fn simpleBLECentralProcessGATTMsg * * @brief Process GATT messages * * @return none */ static void simpleBLECentralProcessGATTMsg( gattMsgEvent_t *pMsg ) { if ( simpleBLEState != BLE_STATE_CONNECTED ) { // In case a GATT message came after a connection has dropped, // ignore the message return; } if ( ( pMsg->method == ATT_READ_RSP ) || ( ( pMsg->method == ATT_ERROR_RSP ) && ( pMsg->msg.errorRsp.reqOpcode == ATT_READ_REQ ) ) ) { if ( pMsg->method == ATT_ERROR_RSP ) { uint8 status = pMsg->msg.errorRsp.errCode; LCD_WRITE_STRING_VALUE( "Read Error", status, 10, HAL_LCD_LINE_1 ); } else { // After a successful read, display the read value uint8 valueRead = pMsg->msg.readRsp.value[0]; LCD_WRITE_STRING_VALUE( "Read rsp:", valueRead, 10, HAL_LCD_LINE_1 ); } //simpleBLEProcedureInProgress = FALSE; } else if ( ( pMsg->method == ATT_WRITE_RSP ) || ( ( pMsg->method == ATT_ERROR_RSP ) && ( pMsg->msg.errorRsp.reqOpcode == ATT_WRITE_REQ ) ) ) { if ( pMsg->method == ATT_ERROR_RSP == ATT_ERROR_RSP ) { uint8 status = pMsg->msg.errorRsp.errCode; LCD_WRITE_STRING_VALUE( "Write Error", status, 10, HAL_LCD_LINE_1 ); } else { // After a succesful write, display the value that was written and increment value //LCD_WRITE_STRING_VALUE( "Write sent:", simpleBLECharVal++, 10, HAL_LCD_LINE_1 ); // 这个变量用于表明上一次写数据到从机已经成功， 可用于判断写数据时的判断， 以确保数据的完整性 simpleBLEChar6DoWrite = TRUE; } //simpleBLEProcedureInProgress = FALSE; } else if ( simpleBLEDiscState != BLE_DISC_STATE_IDLE ) { simpleBLEGATTDiscoveryEvent( pMsg ); } else if ( ( pMsg->method == ATT_HANDLE_VALUE_NOTI ) ) //通知 { if( pMsg->msg.handleValueNoti.handle == 0x0035) //CHAR6的通知 串口打印 { NPI_WriteTransport(pMsg->msg.handleValueNoti.value, pMsg->msg.handleValueNoti.len ); } } } /********************************************************************* * @fn simpleBLECentralRssiCB * * @brief RSSI callback. * * @param connHandle - connection handle * @param rssi - RSSI * * @return none */ static void simpleBLECentralRssiCB( uint16 connHandle, int8 rssi ) { LCD_WRITE_STRING_VALUE( "RSSI -dB:", (uint8) (-rssi), 10, HAL_LCD_LINE_1 ); simpleBle_SetRssi(rssi); } /********************************************************************* * @fn simpleBLECentralEventCB * * @brief Central event callback function. * * @param pEvent - pointer to event structure * * @return none */ static void simpleBLECentralEventCB( gapCentralRoleEvent_t *pEvent ) { switch ( pEvent->gap.opcode ) { case GAP_DEVICE_INIT_DONE_EVENT: { LCD_WRITE_STRING( "BLE Central", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( bdAddr2Str( pEvent->initDone.devAddr ), HAL_LCD_LINE_2 ); } break; case GAP_DEVICE_INFO_EVENT: { // if filtering device discovery results based on service UUID if ( DEFAULT_DEV_DISC_BY_SVC_UUID == TRUE ) { if ( simpleBLEFindSvcUuid( SIMPLEPROFILE_SERV_UUID, pEvent->deviceInfo.pEvtData, pEvent->deviceInfo.dataLen ) ) { simpleBLEAddDeviceInfo( pEvent->deviceInfo.addr, pEvent->deviceInfo.addrType ); } } } break; case GAP_DEVICE_DISCOVERY_EVENT: { // discovery complete simpleBLEScanning = FALSE; // if not filtering device discovery results based on service UUID if ( DEFAULT_DEV_DISC_BY_SVC_UUID == FALSE ) { // Copy results simpleBLEScanRes = pEvent->discCmpl.numDevs; osal_memcpy( simpleBLEDevList, pEvent->discCmpl.pDevList, (sizeof( gapDevRec_t ) * pEvent->discCmpl.numDevs) ); } LCD_WRITE_STRING_VALUE( "Devices Found", simpleBLEScanRes, 10, HAL_LCD_LINE_1 ); if ( simpleBLEScanRes > 0 ) { LCD_WRITE_STRING( "<- To Select", HAL_LCD_LINE_2 ); //这里可以决定连接到所搜索到的哪一个从机， 这里可以进行从机地址码的判断， 比如， 可以连接到最近一次连接成功的mac地址的从机 //HalLedSet(HAL_LED_3, HAL_LED_MODE_ON ); //开LED3 if ( simpleBLEState == BLE_STATE_IDLE ) { uint8 addrType; uint8 *peerAddr; uint8 i; uint8 Addr[MAC_ADDR_CHAR_LEN]; bool ret = FALSE;; bool ifDoConnect = FALSE; for(i = 0; i < simpleBLEScanRes; i++) { LCD_WRITE_STRING_VALUE( "--->peerAddr ", i, 10, HAL_LCD_LINE_2 ); //Serial_Delay(1); LCD_WRITE_STRING( bdAddr2Str( simpleBLEDevList[i].addr ), HAL_LCD_LINE_2 ); //Serial_Delay(1); } LCD_WRITE_STRING( "---------------", HAL_LCD_LINE_2 ); //Serial_Delay(1); #if 1//自动连接发现的第一个从设备 ret = simpleBLE_GetPeripheralMacAddr(Addr); //LCD_WRITE_STRING_VALUE( "--->ret ", ret, 10, HAL_LCD_LINE_2 ); //Serial_Delay(1); //simpleBLEScanIdx = 0; for(i = 0; i < simpleBLEScanRes; i++) { LCD_WRITE_STRING_VALUE( "peerAddr ", i, 10, HAL_LCD_LINE_2 ); LCD_WRITE_STRING( bdAddr2Str( simpleBLEDevList[i].addr ), HAL_LCD_LINE_2 ); // connect to current device in scan result peerAddr = simpleBLEDevList[i].addr; addrType = simpleBLEDevList[i].addrType; if(ret == FALSE) //如果没有记录地址， 则记录地址， 并连接第一个从设备 { simpleBLE_SetPeripheralMacAddr((uint8*)bdAddr2Str( simpleBLEDevList[i].addr )+2); simpleBLE_SaveAllDataToFlash(); //simpleBLEScanIdx = i; ifDoConnect = TRUE; break; } else { //指定连接某设备, 如果该次扫描没有之前连接过的地址， 则不建立连接 if(osal_memcmp(Addr, bdAddr2Str( simpleBLEDevList[i].addr )+2, MAC_ADDR_CHAR_LEN)) { //simpleBLEScanIdx = i; ifDoConnect = TRUE; break; } } } #else// 连接指定MAC地址的从设备 if(simpleBLE_GetToConnectFlag(Addr)) { // 连接指定的mac 地址的从机设备 simpleBLEScanIdx = 0; for(i = 0; i < simpleBLEScanRes; i++) { LCD_WRITE_STRING_VALUE( "peerAddr ", i, 10, HAL_LCD_LINE_2 ); LCD_WRITE_STRING( bdAddr2Str( simpleBLEDevList[i].addr ), HAL_LCD_LINE_2 ); // connect to current device in scan result peerAddr = simpleBLEDevList[i].addr; addrType = simpleBLEDevList[i].addrType; if(osal_memcmp(Addr, bdAddr2Str( simpleBLEDevList[i].addr )+2, MAC_ADDR_CHAR_LEN)) { simpleBLEScanIdx = i; ifDoConnect = TRUE; break; } } } #endif if(ifDoConnect) { simpleBLEState = BLE_STATE_CONNECTING; LCD_WRITE_STRING( "Connecting", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( bdAddr2Str( pEvent->linkCmpl.devAddr ), HAL_LCD_LINE_2 ); GAPCentralRole_EstablishLink( DEFAULT_LINK_HIGH_DUTY_CYCLE, DEFAULT_LINK_WHITE_LIST, addrType, peerAddr ); } else { //LCD_WRITE_STRING( "Continue scanning", HAL_LCD_LINE_1 ); NPI_WriteTransport("Scanning...", 11); // 继续扫描 simpleBLEScanning = FALSE; simpleBLEScanRes = 0; simpleBLEStartScan(); } } //HalLedSet(HAL_LED_3, HAL_LED_MODE_OFF ); // initialize scan index to last device //simpleBLEScanIdx = simpleBLEScanRes; } else { simpleBLEStartScan(); } } break; case GAP_LINK_ESTABLISHED_EVENT: { if ( pEvent->gap.hdr.status == SUCCESS ) { simpleBLEState = BLE_STATE_CONNECTED; simpleBLEConnHandle = pEvent->linkCmpl.connectionHandle; //simpleBLEProcedureInProgress = TRUE; // If service discovery not performed initiate service discovery if ( simpleBLECharHdl == 0 ) { osal_start_timerEx( simpleBLETaskId, START_DISCOVERY_EVT, DEFAULT_SVC_DISCOVERY_DELAY ); } LCD_WRITE_STRING( "Connected", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( bdAddr2Str( pEvent->linkCmpl.devAddr ), HAL_LCD_LINE_2 ); HalLedSet(HAL_LED_3, HAL_LED_MODE_OFF ); } else { simpleBLEState = BLE_STATE_IDLE; simpleBLEConnHandle = GAP_CONNHANDLE_INIT; //simpleBLERssi = FALSE; simpleBLEDiscState = BLE_DISC_STATE_IDLE; simpleBLECentralCanSend = FALSE; LCD_WRITE_STRING( "Connect Failed", HAL_LCD_LINE_1 ); LCD_WRITE_STRING_VALUE( "Reason:", pEvent->gap.hdr.status, 10, HAL_LCD_LINE_2 ); //HalLedSet(HAL_LED_3, HAL_LED_MODE_OFF ); //关LED3 } } break; case GAP_LINK_TERMINATED_EVENT: { simpleBLEState = BLE_STATE_IDLE; simpleBLEConnHandle = GAP_CONNHANDLE_INIT; //simpleBLERssi = FALSE; simpleBLEDiscState = BLE_DISC_STATE_IDLE; simpleBLECharHdl = 0; //simpleBLEProcedureInProgress = FALSE; simpleBLECentralCanSend = FALSE; LCD_WRITE_STRING( "Disconnected", HAL_LCD_LINE_1 ); LCD_WRITE_STRING_VALUE( "Reason:", pEvent->linkTerminate.reason, 10, HAL_LCD_LINE_2 ); //HalLedSet(HAL_LED_3, HAL_LED_MODE_OFF ); //关LED3 //这里连接失败后， 可以尝试执行重启或者继续扫描从机 simpleBLEScanRes = 0; LCD_WRITE_STRING_VALUE( "simpleBLEScanning=", simpleBLEScanning, 10, HAL_LCD_LINE_1 ); LCD_WRITE_STRING_VALUE( "simpleBLEScanRes=", simpleBLEScanRes, 10, HAL_LCD_LINE_1 ); simpleBLEScanning = 0; simpleBLEScanRes = 0; simpleBLEStartScan(); } break; case GAP_LINK_PARAM_UPDATE_EVENT: { attWriteReq_t AttReq; uint8 ValueBuf[2]; LCD_WRITE_STRING( "Param Update", HAL_LCD_LINE_1); AttReq.handle = 0x0036; AttReq.len = 2; AttReq.sig = 0; AttReq.cmd = 0; ValueBuf[0] = 0x01; ValueBuf[1] = 0x00; osal_memcpy(AttReq.value,ValueBuf,2); GATT_WriteCharValue( 0, &AttReq, simpleBLETaskId ); LCD_WRITE_STRING( "Enable Notice\n", HAL_LCD_LINE_1); simpleBLECentralCanSend = TRUE; NPI_WriteTransport("Connected\r\n", 11); } break; default: break; } } /********************************************************************* * @fn pairStateCB * * @brief Pairing state callback. * * @return none */ static void simpleBLECentralPairStateCB( uint16 connHandle, uint8 state, uint8 status ) { if ( state == GAPBOND_PAIRING_STATE_STARTED ) { LCD_WRITE_STRING( "Pairing started", HAL_LCD_LINE_1 ); } else if ( state == GAPBOND_PAIRING_STATE_COMPLETE ) { if ( status == SUCCESS ) { LCD_WRITE_STRING( "Pairing success", HAL_LCD_LINE_1 ); } else { LCD_WRITE_STRING_VALUE( "Pairing fail", status, 10, HAL_LCD_LINE_1 ); } } else if ( state == GAPBOND_PAIRING_STATE_BONDED ) { if ( status == SUCCESS ) { LCD_WRITE_STRING( "Bonding success", HAL_LCD_LINE_1 ); } } } /********************************************************************* * @fn simpleBLECentralPasscodeCB * * @brief Passcode callback. * * @return none */ static void simpleBLECentralPasscodeCB( uint8 *deviceAddr, uint16 connectionHandle, uint8 uiInputs, uint8 uiOutputs ) { #if (HAL_LCD == TRUE) uint32 passcode; uint8 str[7]; // Create random passcode LL_Rand( ((uint8 *) &passcode), sizeof( uint32 )); passcode %= 1000000; // Display passcode to user if ( uiOutputs != 0 ) { LCD_WRITE_STRING( "Passcode:", HAL_LCD_LINE_1 ); LCD_WRITE_STRING( (char *) _ltoa(passcode, str, 10), HAL_LCD_LINE_2 ); } // Send passcode response GAPBondMgr_PasscodeRsp( connectionHandle, SUCCESS, passcode ); #endif } /********************************************************************* * @fn simpleBLECentralStartDiscovery * * @brief Start service discovery. * * @return none */ static void simpleBLECentralStartDiscovery( void ) { uint8 uuid[ATT_BT_UUID_SIZE] = { LO_UINT16(SIMPLEPROFILE_SERV_UUID), HI_UINT16(SIMPLEPROFILE_SERV_UUID) }; // Initialize cached handles simpleBLESvcStartHdl = simpleBLESvcEndHdl = simpleBLECharHdl = 0; simpleBLEDiscState = BLE_DISC_STATE_SVC; // Discovery simple BLE service GATT_DiscPrimaryServiceByUUID( simpleBLEConnHandle, uuid, ATT_BT_UUID_SIZE, simpleBLETaskId ); } /********************************************************************* * @fn simpleBLEGATTDiscoveryEvent * * @brief Process GATT discovery event * * @return none */ static void simpleBLEGATTDiscoveryEvent( gattMsgEvent_t *pMsg ) { attReadByTypeReq_t req; if ( simpleBLEDiscState == BLE_DISC_STATE_SVC ) { // Service found, store handles if ( pMsg->method == ATT_FIND_BY_TYPE_VALUE_RSP && pMsg->msg.findByTypeValueRsp.numInfo > 0 ) { simpleBLESvcStartHdl = pMsg->msg.findByTypeValueRsp.handlesInfo[0].handle; simpleBLESvcEndHdl = pMsg->msg.findByTypeValueRsp.handlesInfo[0].grpEndHandle; } // If procedure complete if ( ( pMsg->method == ATT_FIND_BY_TYPE_VALUE_RSP && pMsg->hdr.status == bleProcedureComplete ) || ( pMsg->method == ATT_ERROR_RSP ) ) { if ( simpleBLESvcStartHdl != 0 ) { // Discover characteristic simpleBLEDiscState = BLE_DISC_STATE_CHAR; req.startHandle = simpleBLESvcStartHdl; req.endHandle = simpleBLESvcEndHdl; req.type.len = ATT_BT_UUID_SIZE; req.type.uuid[0] = LO_UINT16(SIMPLEPROFILE_CHAR6_UUID); req.type.uuid[1] = HI_UINT16(SIMPLEPROFILE_CHAR6_UUID); GATT_ReadUsingCharUUID( simpleBLEConnHandle, &req, simpleBLETaskId ); } } } else if ( simpleBLEDiscState == BLE_DISC_STATE_CHAR ) { // Characteristic found, store handle if ( pMsg->method == ATT_READ_BY_TYPE_RSP && pMsg->msg.readByTypeRsp.numPairs > 0 ) { simpleBLECharHd6 = BUILD_UINT16( pMsg->msg.readByTypeRsp.dataList[0], pMsg->msg.readByTypeRsp.dataList[1] ); LCD_WRITE_STRING( "Simple Svc Found", HAL_LCD_LINE_1 ); //simpleBLEProcedureInProgress = FALSE; } simpleBLEDiscState = BLE_DISC_STATE_IDLE; } } /********************************************************************* * @fn simpleBLEFindSvcUuid * * @brief Find a given UUID in an advertiser's service UUID list. * * @return TRUE if service UUID found */ static bool simpleBLEFindSvcUuid( uint16 uuid, uint8 *pData, uint8 dataLen ) { uint8 adLen; uint8 adType; uint8 *pEnd; pEnd = pData + dataLen - 1; // While end of data not reached while ( pData < pEnd ) { // Get length of next AD item adLen = *pData++; if ( adLen > 0 ) { adType = *pData; // If AD type is for 16-bit service UUID if ( adType == GAP_ADTYPE_16BIT_MORE || adType == GAP_ADTYPE_16BIT_COMPLETE ) { pData++; adLen--; // For each UUID in list while ( adLen >= 2 && pData < pEnd ) { // Check for match if ( pData[0] == LO_UINT16(uuid) && pData[1] == HI_UINT16(uuid) ) { // Match found return TRUE; } // Go to next pData += 2; adLen -= 2; } // Handle possible erroneous extra byte in UUID list if ( adLen == 1 ) { pData++; } } else { // Go to next item pData += adLen; } } } // Match not found return FALSE; } /********************************************************************* * @fn simpleBLEAddDeviceInfo * * @brief Add a device to the device discovery result list * * @return none */ static void simpleBLEAddDeviceInfo( uint8 *pAddr, uint8 addrType ) { uint8 i; // If result count not at max if ( simpleBLEScanRes < DEFAULT_MAX_SCAN_RES ) { // Check if device is already in scan results for ( i = 0; i < simpleBLEScanRes; i++ ) { if ( osal_memcmp( pAddr, simpleBLEDevList[i].addr , B_ADDR_LEN ) ) { return; } } // Add addr to scan result list osal_memcpy( simpleBLEDevList[simpleBLEScanRes].addr, pAddr, B_ADDR_LEN ); simpleBLEDevList[simpleBLEScanRes].addrType = addrType; // Increment scan result count simpleBLEScanRes++; } }