503 lines
15 KiB
C
503 lines
15 KiB
C
/**************************************************************************************************
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Filename: heartrateservice.c
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Revised: $Date: 2013-05-06 13:33:47 -0700 (Mon, 06 May 2013) $
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Revision: $Revision: 34153 $
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Description: This file contains the Heart Rate sample service
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for use with the Heart Rate sample application.
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Copyright 2011 - 2013 Texas Instruments Incorporated. All rights reserved.
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IMPORTANT: Your use of this Software is limited to those specific rights
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granted under the terms of a software license agreement between the user
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who downloaded the software, his/her employer (which must be your employer)
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and Texas Instruments Incorporated (the "License"). You may not use this
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Software unless you agree to abide by the terms of the License. The License
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limits your use, and you acknowledge, that the Software may not be modified,
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copied or distributed unless embedded on a Texas Instruments microcontroller
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or used solely and exclusively in conjunction with a Texas Instruments radio
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frequency transceiver, which is integrated into your product. Other than for
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the foregoing purpose, you may not use, reproduce, copy, prepare derivative
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works of, modify, distribute, perform, display or sell this Software and/or
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its documentation for any purpose.
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YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
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TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
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NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
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LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
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INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
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OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
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OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
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(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
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Should you have any questions regarding your right to use this Software,
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contact Texas Instruments Incorporated at www.TI.com.
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**************************************************************************************************/
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/*********************************************************************
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* INCLUDES
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*/
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#include "bcomdef.h"
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#include "OSAL.h"
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#include "linkdb.h"
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#include "att.h"
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#include "gatt.h"
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#include "gatt_uuid.h"
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#include "gattservapp.h"
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#include "heartrateservice.h"
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/*********************************************************************
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* MACROS
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*/
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/*********************************************************************
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* CONSTANTS
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*/
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// Position of heart rate measurement value in attribute array
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#define HEARTRATE_MEAS_VALUE_POS 2
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/*********************************************************************
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* TYPEDEFS
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*/
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/*********************************************************************
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* GLOBAL VARIABLES
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*/
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// Heart rate service
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CONST uint8 heartRateServUUID[ATT_BT_UUID_SIZE] =
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{
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LO_UINT16(HEARTRATE_SERV_UUID), HI_UINT16(HEARTRATE_SERV_UUID)
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};
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// Heart rate measurement characteristic
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CONST uint8 heartRateMeasUUID[ATT_BT_UUID_SIZE] =
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{
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LO_UINT16(HEARTRATE_MEAS_UUID), HI_UINT16(HEARTRATE_MEAS_UUID)
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};
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// Sensor location characteristic
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CONST uint8 heartRateSensLocUUID[ATT_BT_UUID_SIZE] =
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{
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LO_UINT16(HEARTRATE_SENS_LOC_UUID), HI_UINT16(HEARTRATE_SENS_LOC_UUID)
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};
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// Command characteristic
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CONST uint8 heartRateCommandUUID[ATT_BT_UUID_SIZE] =
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{
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LO_UINT16(HEARTRATE_COMMAND_UUID), HI_UINT16(HEARTRATE_COMMAND_UUID)
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};
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/*********************************************************************
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* EXTERNAL VARIABLES
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*/
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/*********************************************************************
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* EXTERNAL FUNCTIONS
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*/
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/*********************************************************************
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* LOCAL VARIABLES
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*/
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static heartRateServiceCB_t heartRateServiceCB;
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/*********************************************************************
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* Profile Attributes - variables
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*/
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// Heart Rate Service attribute
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static CONST gattAttrType_t heartRateService = { ATT_BT_UUID_SIZE, heartRateServUUID };
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// Heart Rate Measurement Characteristic
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// Note characteristic value is not stored here
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static uint8 heartRateMeasProps = GATT_PROP_NOTIFY;
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static uint8 heartRateMeas = 0;
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static gattCharCfg_t heartRateMeasClientCharCfg[GATT_MAX_NUM_CONN];
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// Sensor Location Characteristic
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static uint8 heartRateSensLocProps = GATT_PROP_READ;
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static uint8 heartRateSensLoc = 0;
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// Command Characteristic
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static uint8 heartRateCommandProps = GATT_PROP_WRITE;
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static uint8 heartRateCommand = 0;
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/*********************************************************************
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* Profile Attributes - Table
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*/
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static gattAttribute_t heartRateAttrTbl[] =
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{
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// Heart Rate Service
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{
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{ ATT_BT_UUID_SIZE, primaryServiceUUID }, /* type */
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GATT_PERMIT_READ, /* permissions */
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0, /* handle */
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(uint8 *)&heartRateService /* pValue */
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},
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// Heart Rate Measurement Declaration
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{
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{ ATT_BT_UUID_SIZE, characterUUID },
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GATT_PERMIT_READ,
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0,
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&heartRateMeasProps
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},
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// Heart Rate Measurement Value
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{
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{ ATT_BT_UUID_SIZE, heartRateMeasUUID },
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0,
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0,
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&heartRateMeas
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},
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// Heart Rate Measurement Client Characteristic Configuration
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{
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{ ATT_BT_UUID_SIZE, clientCharCfgUUID },
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GATT_PERMIT_READ | GATT_PERMIT_WRITE,
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0,
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(uint8 *) &heartRateMeasClientCharCfg
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},
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// Sensor Location Declaration
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{
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{ ATT_BT_UUID_SIZE, characterUUID },
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GATT_PERMIT_READ,
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0,
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&heartRateSensLocProps
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},
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// Sensor Location Value
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{
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{ ATT_BT_UUID_SIZE, heartRateSensLocUUID },
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GATT_PERMIT_READ,
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0,
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&heartRateSensLoc
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},
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// Command Declaration
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{
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{ ATT_BT_UUID_SIZE, characterUUID },
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GATT_PERMIT_READ,
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0,
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&heartRateCommandProps
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},
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// Command Value
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{
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{ ATT_BT_UUID_SIZE, heartRateCommandUUID },
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GATT_PERMIT_WRITE,
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0,
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&heartRateCommand
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}
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};
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/*********************************************************************
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* LOCAL FUNCTIONS
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*/
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static uint8 heartRate_ReadAttrCB( uint16 connHandle, gattAttribute_t *pAttr,
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uint8 *pValue, uint8 *pLen, uint16 offset, uint8 maxLen );
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static bStatus_t heartRate_WriteAttrCB( uint16 connHandle, gattAttribute_t *pAttr,
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uint8 *pValue, uint8 len, uint16 offset );
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/*********************************************************************
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* PROFILE CALLBACKS
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*/
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// Heart Rate Service Callbacks
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CONST gattServiceCBs_t heartRateCBs =
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{
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heartRate_ReadAttrCB, // Read callback function pointer
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heartRate_WriteAttrCB, // Write callback function pointer
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NULL // Authorization callback function pointer
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};
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/*********************************************************************
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* PUBLIC FUNCTIONS
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*/
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/*********************************************************************
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* @fn HeartRate_AddService
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*
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* @brief Initializes the Heart Rate service by registering
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* GATT attributes with the GATT server.
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*
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* @param services - services to add. This is a bit map and can
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* contain more than one service.
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*
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* @return Success or Failure
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*/
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bStatus_t HeartRate_AddService( uint32 services )
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{
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uint8 status = SUCCESS;
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// Initialize Client Characteristic Configuration attributes
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GATTServApp_InitCharCfg( INVALID_CONNHANDLE, heartRateMeasClientCharCfg );
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if ( services & HEARTRATE_SERVICE )
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{
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// Register GATT attribute list and CBs with GATT Server App
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status = GATTServApp_RegisterService( heartRateAttrTbl,
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GATT_NUM_ATTRS( heartRateAttrTbl ),
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&heartRateCBs );
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}
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return ( status );
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}
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/*********************************************************************
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* @fn HeartRate_Register
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*
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* @brief Register a callback function with the Heart Rate Service.
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*
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* @param pfnServiceCB - Callback function.
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*
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* @return None.
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*/
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extern void HeartRate_Register( heartRateServiceCB_t pfnServiceCB )
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{
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heartRateServiceCB = pfnServiceCB;
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}
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/*********************************************************************
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* @fn HeartRate_SetParameter
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*
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* @brief Set a Heart Rate parameter.
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*
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* @param param - Profile parameter ID
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* @param len - length of data to right
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* @param value - pointer to data to write. This is dependent on
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* the parameter ID and WILL be cast to the appropriate
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* data type (example: data type of uint16 will be cast to
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* uint16 pointer).
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*
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* @return bStatus_t
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*/
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bStatus_t HeartRate_SetParameter( uint8 param, uint8 len, void *value )
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{
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bStatus_t ret = SUCCESS;
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switch ( param )
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{
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case HEARTRATE_MEAS_CHAR_CFG:
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// Need connection handle
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//heartRateMeasClientCharCfg.value = *((uint16*)value);
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break;
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case HEARTRATE_SENS_LOC:
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heartRateSensLoc = *((uint8*)value);
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break;
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default:
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ret = INVALIDPARAMETER;
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break;
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}
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return ( ret );
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}
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/*********************************************************************
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* @fn HeartRate_GetParameter
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*
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* @brief Get a Heart Rate parameter.
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*
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* @param param - Profile parameter ID
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* @param value - pointer to data to get. This is dependent on
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* the parameter ID and WILL be cast to the appropriate
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* data type (example: data type of uint16 will be cast to
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* uint16 pointer).
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*
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* @return bStatus_t
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*/
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bStatus_t HeartRate_GetParameter( uint8 param, void *value )
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{
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bStatus_t ret = SUCCESS;
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switch ( param )
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{
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case HEARTRATE_MEAS_CHAR_CFG:
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// Need connection handle
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//*((uint16*)value) = heartRateMeasClientCharCfg.value;
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break;
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case HEARTRATE_SENS_LOC:
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*((uint8*)value) = heartRateSensLoc;
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break;
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case HEARTRATE_COMMAND:
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*((uint8*)value) = heartRateCommand;
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break;
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default:
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ret = INVALIDPARAMETER;
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break;
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}
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return ( ret );
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}
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/*********************************************************************
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* @fn HeartRate_MeasNotify
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*
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* @brief Send a notification containing a heart rate
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* measurement.
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*
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* @param connHandle - connection handle
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* @param pNoti - pointer to notification structure
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*
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* @return Success or Failure
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*/
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bStatus_t HeartRate_MeasNotify( uint16 connHandle, attHandleValueNoti_t *pNoti )
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{
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uint16 value = GATTServApp_ReadCharCfg( connHandle, heartRateMeasClientCharCfg );
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// If notifications enabled
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if ( value & GATT_CLIENT_CFG_NOTIFY )
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{
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// Set the handle
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pNoti->handle = heartRateAttrTbl[HEARTRATE_MEAS_VALUE_POS].handle;
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// Send the notification
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return GATT_Notification( connHandle, pNoti, FALSE );
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}
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return bleIncorrectMode;
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}
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/*********************************************************************
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* @fn heartRate_ReadAttrCB
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*
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* @brief Read an attribute.
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*
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* @param connHandle - connection message was received on
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* @param pAttr - pointer to attribute
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* @param pValue - pointer to data to be read
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* @param pLen - length of data to be read
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* @param offset - offset of the first octet to be read
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* @param maxLen - maximum length of data to be read
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*
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* @return Success or Failure
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*/
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static uint8 heartRate_ReadAttrCB( uint16 connHandle, gattAttribute_t *pAttr,
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uint8 *pValue, uint8 *pLen, uint16 offset, uint8 maxLen )
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{
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bStatus_t status = SUCCESS;
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// Make sure it's not a blob operation (no attributes in the profile are long)
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if ( offset > 0 )
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{
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return ( ATT_ERR_ATTR_NOT_LONG );
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}
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uint16 uuid = BUILD_UINT16( pAttr->type.uuid[0], pAttr->type.uuid[1]);
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if (uuid == HEARTRATE_SENS_LOC_UUID)
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{
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*pLen = 1;
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pValue[0] = *pAttr->pValue;
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}
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else
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{
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status = ATT_ERR_ATTR_NOT_FOUND;
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}
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return ( status );
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}
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/*********************************************************************
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* @fn heartRate_WriteAttrCB
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*
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* @brief Validate attribute data prior to a write operation
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*
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* @param connHandle - connection message was received on
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* @param pAttr - pointer to attribute
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* @param pValue - pointer to data to be written
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* @param len - length of data
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* @param offset - offset of the first octet to be written
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*
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* @return Success or Failure
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*/
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static bStatus_t heartRate_WriteAttrCB( uint16 connHandle, gattAttribute_t *pAttr,
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uint8 *pValue, uint8 len, uint16 offset )
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{
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bStatus_t status = SUCCESS;
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uint16 uuid = BUILD_UINT16( pAttr->type.uuid[0], pAttr->type.uuid[1]);
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switch ( uuid )
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{
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case HEARTRATE_COMMAND_UUID:
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if ( offset > 0 )
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{
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status = ATT_ERR_ATTR_NOT_LONG;
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}
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else if (len != 1)
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{
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status = ATT_ERR_INVALID_VALUE_SIZE;
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}
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else if (*pValue != HEARTRATE_COMMAND_ENERGY_EXP)
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{
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status = HEARTRATE_ERR_NOT_SUP;
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}
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else
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{
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*(pAttr->pValue) = pValue[0];
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(*heartRateServiceCB)(HEARTRATE_COMMAND_SET);
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}
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break;
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case GATT_CLIENT_CHAR_CFG_UUID:
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status = GATTServApp_ProcessCCCWriteReq( connHandle, pAttr, pValue, len,
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offset, GATT_CLIENT_CFG_NOTIFY );
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if ( status == SUCCESS )
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{
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uint16 charCfg = BUILD_UINT16( pValue[0], pValue[1] );
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(*heartRateServiceCB)( (charCfg == GATT_CFG_NO_OPERATION) ?
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HEARTRATE_MEAS_NOTI_DISABLED :
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HEARTRATE_MEAS_NOTI_ENABLED );
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}
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break;
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default:
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status = ATT_ERR_ATTR_NOT_FOUND;
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break;
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}
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return ( status );
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}
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/*********************************************************************
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* @fn HeartRate_HandleConnStatusCB
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*
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* @brief Heart Rate Service link status change handler function.
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*
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* @param connHandle - connection handle
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* @param changeType - type of change
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*
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* @return none
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*/
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void HeartRate_HandleConnStatusCB( uint16 connHandle, uint8 changeType )
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{
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// Make sure this is not loopback connection
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if ( connHandle != LOOPBACK_CONNHANDLE )
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{
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// Reset Client Char Config if connection has dropped
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if ( ( changeType == LINKDB_STATUS_UPDATE_REMOVED ) ||
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( ( changeType == LINKDB_STATUS_UPDATE_STATEFLAGS ) &&
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( !linkDB_Up( connHandle ) ) ) )
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{
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GATTServApp_InitCharCfg( connHandle, heartRateMeasClientCharCfg );
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}
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}
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}
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/*********************************************************************
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*********************************************************************/
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