/************************************************************************************************** Filename: bpservice.c Revised: $Date $ Revision: $Revision $ Description: This file contains the BloodPressure sample service for use with the BloodPressure sample application. Copyright 2011 - 2013 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 “AS 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 "linkdb.h" #include "att.h" #include "gatt.h" #include "gatt_uuid.h" #include "gattservapp.h" #include "gapbondmgr.h" #include "bpservice.h" /********************************************************************* * MACROS */ /********************************************************************* * CONSTANTS */ // Position of bloodPressure measurement value in attribute array #define BLOODPRESSURE_MEAS_VALUE_POS 2 #define BLOODPRESSURE_MEAS_CONFIG_POS 3 #define BLOODPRESSURE_IMEAS_VALUE_POS 6 #define BLOODPRESSURE_IMEAS_CONFIG_POS 7 /********************************************************************* * TYPEDEFS */ /********************************************************************* * GLOBAL VARIABLES */ // BloodPressure service CONST uint8 bloodPressureServUUID[ATT_BT_UUID_SIZE] = { LO_UINT16(BLOODPRESSURE_SERV_UUID), HI_UINT16(BLOODPRESSURE_SERV_UUID) }; // BloodPressure temperature characteristic CONST uint8 bloodPressureTempUUID[ATT_BT_UUID_SIZE] = { LO_UINT16(BLOODPRESSURE_MEAS_UUID), HI_UINT16(BLOODPRESSURE_MEAS_UUID) }; // BloodPressure Immediate Measurement CONST uint8 bloodPressureImeasUUID[ATT_BT_UUID_SIZE] = { LO_UINT16(BLOODPRESSURE_IMEAS_UUID), HI_UINT16(BLOODPRESSURE_IMEAS_UUID) }; // BloodPressure Feature CONST uint8 bpFeatureUUID[ATT_BT_UUID_SIZE] = { LO_UINT16(BLOODPRESSURE_FEATURE_UUID), HI_UINT16(BLOODPRESSURE_FEATURE_UUID) }; /********************************************************************* * EXTERNAL VARIABLES */ /********************************************************************* * EXTERNAL FUNCTIONS */ /********************************************************************* * LOCAL VARIABLES */ static bloodPressureServiceCB_t bloodPressureServiceCB; /********************************************************************* * Profile Attributes - variables */ // BloodPressure Service attribute static CONST gattAttrType_t bloodPressureService = { ATT_BT_UUID_SIZE, bloodPressureServUUID }; // BloodPressure Characteristic static uint8 bloodPressureTempProps = GATT_PROP_INDICATE; static gattCharCfg_t bloodPressureMeasConfig[GATT_MAX_NUM_CONN]; static uint8 bloodPressureTemp = 0; static uint8 bloodPressureTempFormat = 12; // Intermediate Measurement static uint8 bloodPressureImeasProps = GATT_PROP_NOTIFY; static uint8 bloodPressureImeas=0; static gattCharCfg_t bloodPressureIMeasConfig[GATT_MAX_NUM_CONN]; // BP Feature /* bit 1 Body Movement Detection Support bit bit 2 Cuff Fit Detection Support bit bit 3 Irregular Pulse Detection Support bit bit 4 Pulse Rate Range Detection Support bit bit 5 Measurement Position Detection Support bit bit 6 Multiple Bond Support bit bit . Reserved for Future Use */ static uint8 bpFeatureProps = GATT_PROP_READ; static uint16 bpFeature = 0; /********************************************************************* * Profile Attributes - Table */ static gattAttribute_t bloodPressureAttrTbl[] = { // BloodPressure Service { { ATT_BT_UUID_SIZE, primaryServiceUUID }, /* type */ GATT_PERMIT_READ, /* permissions */ 0, /* handle */ (uint8 *)&bloodPressureService /* pValue */ }, // 1. Characteristic Declaration { { ATT_BT_UUID_SIZE, characterUUID }, GATT_PERMIT_READ, 0, &bloodPressureTempProps }, // 2. Characteristic Value { { ATT_BT_UUID_SIZE, bloodPressureTempUUID }, 0, //return READ_NOT_PERMITTED 0, &bloodPressureTemp }, // 3.Characteristic Configuration { { ATT_BT_UUID_SIZE, clientCharCfgUUID }, GATT_PERMIT_READ | GATT_PERMIT_WRITE, 0, (uint8 *)&bloodPressureMeasConfig }, // 4.Presentation Format { { ATT_BT_UUID_SIZE, charFormatUUID }, GATT_PERMIT_READ, 0, (uint8 *)&bloodPressureTempFormat }, ////////////////////////////////////////////// // IMMEDIATE MEASUREMENT ////////////////////////////////////////////// // 5.Characteristic Declaration { { ATT_BT_UUID_SIZE, characterUUID }, GATT_PERMIT_READ, 0, &bloodPressureImeasProps }, // 6.Characteristic Value { { ATT_BT_UUID_SIZE, bloodPressureImeasUUID }, 0, //return READ_NOT_PERMITTED 0, &bloodPressureImeas }, // 7.Characteristic Configuration { { ATT_BT_UUID_SIZE, clientCharCfgUUID }, GATT_PERMIT_READ | GATT_PERMIT_WRITE, 0, (uint8 *)&bloodPressureIMeasConfig }, ////////////////////////////////////////////// // FEATURE ////////////////////////////////////////////// // 8.Characteristic Declaration { { ATT_BT_UUID_SIZE, characterUUID }, GATT_PERMIT_READ, 0, &bpFeatureProps }, // 9.Characteristic Value { { ATT_BT_UUID_SIZE, bpFeatureUUID }, GATT_PERMIT_READ, 0, (uint8 *)&bpFeature }, }; /********************************************************************* * LOCAL FUNCTIONS */ static uint8 bloodPressure_ReadAttrCB( uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 *pLen, uint16 offset, uint8 maxLen ); static bStatus_t bloodPressure_WriteAttrCB( uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 len, uint16 offset ); static void bloodPressure_HandleConnStatusCB( uint16 connHandle, uint8 changeType ); /********************************************************************* * PROFILE CALLBACKS */ // Blood Pressure Service Callbacks CONST gattServiceCBs_t bloodPressureCBs = { bloodPressure_ReadAttrCB, // Read callback function pointer bloodPressure_WriteAttrCB, // Write callback function pointer NULL // Authorization callback function pointer }; /********************************************************************* * PUBLIC FUNCTIONS */ /********************************************************************* * @fn BloodPressure_AddService * * @brief Initializes the BloodPressure service by registering * GATT attributes with the GATT server. * * @param services - services to add. This is a bit map and can * contain more than one service. * * @return Success or Failure */ bStatus_t BloodPressure_AddService( uint32 services ) { uint8 status = SUCCESS; // Initialize Client Characteristic Configuration attributes GATTServApp_InitCharCfg( INVALID_CONNHANDLE, bloodPressureMeasConfig ); GATTServApp_InitCharCfg( INVALID_CONNHANDLE, bloodPressureIMeasConfig ); // Register with Link DB to receive link status change callback VOID linkDB_Register( bloodPressure_HandleConnStatusCB ); if ( services & BLOODPRESSURE_SERVICE ) { // Register GATT attribute list and CBs with GATT Server App status = GATTServApp_RegisterService( bloodPressureAttrTbl, GATT_NUM_ATTRS( bloodPressureAttrTbl ), &bloodPressureCBs ); } return ( status ); } /********************************************************************* * @fn BloodPressure_Register * * @brief Register a callback function with the BloodPressure Service. * * @param pfnServiceCB - Callback function. * * @return None. */ extern void BloodPressure_Register( bloodPressureServiceCB_t pfnServiceCB ) { bloodPressureServiceCB = pfnServiceCB; } /********************************************************************* * @fn BloodPressure_SetParameter * * @brief Set a thermomter parameter. * * @param param - Profile parameter ID * @param len - length of data to right * @param value - pointer to data to write. This is dependent on * the parameter ID and WILL be cast to the appropriate * data type (example: data type of uint16 will be cast to * uint16 pointer). * * @return bStatus_t */ bStatus_t BloodPressure_SetParameter( uint8 param, uint8 len, void *value ) { bStatus_t ret = SUCCESS; switch ( param ) { default: ret = INVALIDPARAMETER; break; } return ( ret ); } /********************************************************************* * @fn BloodPressure_GetParameter * * @brief Get a BloodPressure parameter. * * @param param - Profile parameter ID * @param value - pointer to data to get. This is dependent on * the parameter ID and WILL be cast to the appropriate * data type (example: data type of uint16 will be cast to * uint16 pointer). * * @return bStatus_t */ bStatus_t BloodPressure_GetParameter( uint8 param, void *value ) { bStatus_t ret = SUCCESS; switch ( param ) { default: ret = INVALIDPARAMETER; break; } return ( ret ); } /********************************************************************* * @fn BloodPressure_MeasIndicate * * @brief Send a indication containing a bloodPressure * measurement. * * @param connHandle - connection handle * @param pNoti - pointer to notification structure * * @return Success or Failure */ bStatus_t BloodPressure_MeasIndicate( uint16 connHandle, attHandleValueInd_t *pNoti,uint8 taskId ) { uint16 value = GATTServApp_ReadCharCfg( connHandle, bloodPressureMeasConfig ); // If indications enabled if ( value & GATT_CLIENT_CFG_INDICATE ) { // Set the handle pNoti->handle = bloodPressureAttrTbl[BLOODPRESSURE_MEAS_VALUE_POS].handle; // Send the Indication return GATT_Indication( connHandle, pNoti, FALSE, taskId ); } return bleIncorrectMode; } /********************************************************************* * @fn BloodPressure_IMeasNotify * * @brief Send a notification containing a bloodPressure * measurement. * * @param connHandle - connection handle * @param pNoti - pointer to notification structure * * @return Success or Failure */ bStatus_t BloodPressure_IMeasNotify( uint16 connHandle, attHandleValueNoti_t *pNoti, uint8 taskId ) { uint16 value = GATTServApp_ReadCharCfg( connHandle, bloodPressureIMeasConfig ); // If notifications enabled if ( value & GATT_CLIENT_CFG_NOTIFY ) { // Set the handle pNoti->handle = bloodPressureAttrTbl[BLOODPRESSURE_IMEAS_VALUE_POS].handle; // Send the Indication return GATT_Notification( connHandle, pNoti, FALSE); } return bleIncorrectMode; } /********************************************************************* * @fn bloodPressure_ReadAttrCB * * @brief Read an attribute. * * @param connHandle - connection message was received on * @param pAttr - pointer to attribute * @param pValue - pointer to data to be read * @param pLen - length of data to be read * @param offset - offset of the first octet to be read * @param maxLen - maximum length of data to be read * * @return Success or Failure */ static uint8 bloodPressure_ReadAttrCB( uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 *pLen, uint16 offset, uint8 maxLen ) { bStatus_t status = SUCCESS; // If attribute permissions require authorization to read, return error if ( gattPermitAuthorRead( pAttr->permissions ) ) { // Insufficient authorization return ( ATT_ERR_INSUFFICIENT_AUTHOR ); } // Make sure it's not a blob operation (no attributes in the profile are long) if ( offset > 0 ) { return ( ATT_ERR_ATTR_NOT_LONG ); } if ( pAttr->type.len == ATT_BT_UUID_SIZE ) { // 16-bit UUID uint16 uuid = BUILD_UINT16( pAttr->type.uuid[0], pAttr->type.uuid[1]); switch ( uuid ) { case BLOODPRESSURE_FEATURE_UUID: { *pLen = 2; pValue[0] = 0; pValue[1] = 0; } break; default: // Should never get here! (characteristics 3 and 4 do not have read permissions) *pLen = 0; status = ATT_ERR_ATTR_NOT_FOUND; break; } } return ( status ); } /********************************************************************* * @fn bloodPressure_WriteAttrCB * * @brief Validate attribute data prior to a write operation * * @param connHandle - connection message was received on * @param pAttr - pointer to attribute * @param pValue - pointer to data to be written * @param len - length of data * @param offset - offset of the first octet to be written * * @return Success or Failure */ static bStatus_t bloodPressure_WriteAttrCB( uint16 connHandle, gattAttribute_t *pAttr, uint8 *pValue, uint8 len, uint16 offset ) { bStatus_t status = SUCCESS; uint16 uuid = BUILD_UINT16( pAttr->type.uuid[0], pAttr->type.uuid[1]); switch ( uuid ) { case GATT_CLIENT_CHAR_CFG_UUID: if ( pAttr->handle == bloodPressureAttrTbl[BLOODPRESSURE_MEAS_CONFIG_POS].handle ) { // BloodPressure Indications status = GATTServApp_ProcessCCCWriteReq( connHandle, pAttr, pValue, len, offset, GATT_CLIENT_CFG_INDICATE ); if ( status == SUCCESS ) { uint16 value = BUILD_UINT16( pValue[0], pValue[1] ); (*bloodPressureServiceCB)( (value == GATT_CFG_NO_OPERATION) ? BLOODPRESSURE_MEAS_NOTI_DISABLED : BLOODPRESSURE_MEAS_NOTI_ENABLED); } } else if ( pAttr->handle == bloodPressureAttrTbl[BLOODPRESSURE_IMEAS_CONFIG_POS].handle ) { // BloodPressure Notifications status = GATTServApp_ProcessCCCWriteReq( connHandle, pAttr, pValue, len, offset, GATT_CLIENT_CFG_NOTIFY ); if ( status == SUCCESS ) { uint16 value = BUILD_UINT16( pValue[0], pValue[1] ); (*bloodPressureServiceCB)( (value == GATT_CFG_NO_OPERATION) ? BLOODPRESSURE_IMEAS_NOTI_DISABLED : BLOODPRESSURE_IMEAS_NOTI_ENABLED ); } } else { status = ATT_ERR_INVALID_HANDLE; } break; default: status = ATT_ERR_ATTR_NOT_FOUND; break; } return ( status ); } /********************************************************************* * @fn bloodPressure_HandleConnStatusCB * * @brief Simple Profile link status change handler function. * * @param connHandle - connection handle * @param changeType - type of change * * @return none */ static void bloodPressure_HandleConnStatusCB( uint16 connHandle, uint8 changeType ) { // Make sure this is not loopback connection if ( connHandle != LOOPBACK_CONNHANDLE ) { // Reset Client Char Config if connection has dropped if ( ( changeType == LINKDB_STATUS_UPDATE_REMOVED ) || ( ( changeType == LINKDB_STATUS_UPDATE_STATEFLAGS ) && ( !linkDB_Up( connHandle ) ) ) ) { GATTServApp_InitCharCfg( connHandle, bloodPressureMeasConfig ); GATTServApp_InitCharCfg( connHandle, bloodPressureIMeasConfig ); } } } /********************************************************************* *********************************************************************/