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ambiq-hal-sys/ambiq-sparkfun-sdk/third_party/exactle/ble-profiles/sources/profiles/hrpc/hrpc_api.h
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/*************************************************************************************************/
/*!
* \file
*
* \brief Heart Rate profile client.
*
* Copyright (c) 2012-2018 Arm Ltd.
*
* Copyright (c) 2019 Packetcraft, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*************************************************************************************************/
#ifndef HRPC_API_H
#define HRPC_API_H
#include "att_api.h"
#ifdef __cplusplus
extern "C" {
#endif
/*! \addtogroup HEART_RATE_PROFILE
* \{ */
/**************************************************************************************************
Macros
**************************************************************************************************/
/*! \brief Heart Rate service enumeration of handle indexes of characteristics to be discovered */
enum
{
HRPC_HRS_HRM_HDL_IDX, /*!< \brief Heart rate measurement */
HRPC_HRS_HRM_CCC_HDL_IDX, /*!< \brief Heart rate measurement CCC descriptor */
HRPC_HRS_BSL_HDL_IDX, /*!< \brief Body sensor location */
HRPC_HRS_HRCP_HDL_IDX, /*!< \brief Heart rate control point */
HRPC_HRS_HDL_LIST_LEN /*!< \brief Handle list length */
};
/**************************************************************************************************
Function Declarations
**************************************************************************************************/
/*************************************************************************************************/
/*!
* \brief Perform service and characteristic discovery for Heart Rate service.
* Parameter pHdlList must point to an array of length \ref HRPC_HRS_HDL_LIST_LEN.
* If discovery is successful the handles of discovered characteristics and
* descriptors will be set in pHdlList.
*
* \param connId Connection identifier.
* \param pHdlList Characteristic handle list.
*
* \return None.
*/
/*************************************************************************************************/
void HrpcHrsDiscover(dmConnId_t connId, uint16_t *pHdlList);
/*************************************************************************************************/
/*!
* \brief Send a command to the heart rate control point.
*
* \param connId Connection identifier.
* \param handle Attribute handle.
* \param command Control point command.
*
* \return None.
*/
/*************************************************************************************************/
void HrpcHrsControl(dmConnId_t connId, uint16_t handle, uint8_t command);
/*************************************************************************************************/
/*!
* \brief Process a value received in an ATT read response, notification, or indication
* message. Parameter pHdlList must point to an array of length \ref HRPC_HRS_HDL_LIST_LEN.
* If the ATT handle of the message matches a handle in the handle list the value
* is processed, otherwise it is ignored.
*
* \param pHdlList Characterist handle list.
* \param pMsg ATT callback message.
*
* \return \ref ATT_SUCCESS if handle is found, \ref ATT_ERR_NOT_FOUND otherwise.
*/
/*************************************************************************************************/
uint8_t HrpcHrsValueUpdate(uint16_t *pHdlList, attEvt_t *pMsg);
/*! \} */ /* HEART_RATE_PROFILE */
#ifdef __cplusplus
};
#endif
#endif /* HRPC_API_H */
ambiq-hal-sys/ambiq-sparkfun-sdk/third_party/exactle/ble-profiles/sources/profiles/hrpc/hrpc_main.c
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/*************************************************************************************************/
/*!
* \file
*
* \brief Heart Rate profile collector.
*
* Copyright (c) 2011-2018 Arm Ltd.
*
* Copyright (c) 2019 Packetcraft, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*************************************************************************************************/
#include <string.h>
#include "wsf_types.h"
#include "wsf_assert.h"
#include "wsf_trace.h"
#include "util/bstream.h"
#include "svc_ch.h"
#include "app_api.h"
#include "hrpc_api.h"
/**************************************************************************************************
Local Variables
**************************************************************************************************/
/*!
* Heart Rate service
*/
/* Characteristics for discovery */
/*! Heart rate measurement */
static const attcDiscChar_t hrpcHrsHrm =
{
attHrmChUuid,
ATTC_SET_REQUIRED
};
/*! Heart rate measurement CCC descriptor */
static const attcDiscChar_t hrpcHrsHrmCcc =
{
attCliChCfgUuid,
ATTC_SET_REQUIRED | ATTC_SET_DESCRIPTOR
};
/*! Body sensor location */
static const attcDiscChar_t hrpcHrsBsl =
{
attBslChUuid,
0
};
/*! Heart rate control point */
static const attcDiscChar_t hrpcHrsHrcp =
{
attHrcpChUuid,
0
};
/*! List of characteristics to be discovered; order matches handle index enumeration */
static const attcDiscChar_t *hrpcHrsDiscCharList[] =
{
&hrpcHrsHrm, /*! Heart rate measurement */
&hrpcHrsHrmCcc, /*! Heart rate measurement CCC descriptor */
&hrpcHrsBsl, /*! Body sensor location */
&hrpcHrsHrcp, /*! Heart rate control point */
};
/* sanity check: make sure handle list length matches characteristic list length */
WSF_CT_ASSERT(HRPC_HRS_HDL_LIST_LEN == ((sizeof(hrpcHrsDiscCharList) / sizeof(attcDiscChar_t *))));
/*************************************************************************************************/
/*!
* \brief Parse a heart rate measurement.
*
* \param pValue Pointer to buffer containing value.
* \param len length of buffer.
*
* \return None.
*/
/*************************************************************************************************/
void hrcpHrsParseHrm(uint8_t *pValue, uint16_t len)
{
uint8_t flags;
uint16_t minLen = 1 + CH_HRM_LEN_VALUE_8BIT;
uint16_t heartRate;
uint16_t energyExp;
uint16_t rrInterval;
/* Suppress unused variable compile warning */
(void)heartRate; (void)energyExp; (void)rrInterval;
if (len > 0)
{
/* get flags */
BSTREAM_TO_UINT8(flags, pValue);
/* determine expected minimum length based on flags */
if (flags & CH_HRM_FLAGS_VALUE_16BIT)
{
minLen++;
}
if (flags & CH_HRM_FLAGS_ENERGY_EXP)
{
minLen += CH_HRM_LEN_ENERGY_EXP;
}
if (flags & CH_HRM_FLAGS_RR_INTERVAL)
{
minLen += CH_HRM_LEN_RR_INTERVAL;
}
}
/* verify length */
if (len < minLen)
{
APP_TRACE_INFO2("Heart Rate meas len:%d minLen:%d", len, minLen);
return;
}
/* heart rate */
if (flags & CH_HRM_FLAGS_VALUE_16BIT)
{
BSTREAM_TO_UINT16(heartRate, pValue);
}
else
{
BSTREAM_TO_UINT8(heartRate, pValue);
}
APP_TRACE_INFO1(" Heart rate: %d", heartRate);
/* energy expended */
if (flags & CH_HRM_FLAGS_ENERGY_EXP)
{
BSTREAM_TO_UINT16(energyExp, pValue);
APP_TRACE_INFO1(" Energy Exp: %d", energyExp);
}
/* r-r interval */
if (flags & CH_HRM_FLAGS_RR_INTERVAL)
{
/* get length of r-r interval bytes */
len = len + CH_HRM_LEN_RR_INTERVAL - minLen;
/* if len is somehow missing a byte (len is odd) reduce by 1 */
if (len & 1)
{
len--;
}
/* parse r-r intervals */
do
{
BSTREAM_TO_UINT16(rrInterval, pValue);
APP_TRACE_INFO1(" r-r Interval: %d", rrInterval);
len -= 2;
} while (len > 0);
}
APP_TRACE_INFO1(" Flags:0x%02x", flags);
}
/*************************************************************************************************/
/*!
* \brief Perform service and characteristic discovery for Heart Rate service. Parameter
* pHdlList must point to an array of length HRPC_HRS_HDL_LIST_LEN. If discovery is
* successful the handles of discovered characteristics and descriptors will be set
* in pHdlList.
*
* \param connId Connection identifier.
* \param pHdlList Characteristic handle list.
*
* \return None.
*/
/*************************************************************************************************/
void HrpcHrsDiscover(dmConnId_t connId, uint16_t *pHdlList)
{
AppDiscFindService(connId, ATT_16_UUID_LEN, (uint8_t *) attHrsSvcUuid,
HRPC_HRS_HDL_LIST_LEN, (attcDiscChar_t **) hrpcHrsDiscCharList, pHdlList);
}
/*************************************************************************************************/
/*!
* \brief Send a command to the heart rate control point.
*
* \param connId Connection identifier.
* \param handle Attribute handle.
* \param command Control point command.
*
* \return None.
*/
/*************************************************************************************************/
void HrpcHrsControl(dmConnId_t connId, uint16_t handle, uint8_t command)
{
uint8_t buf[1];
if (handle != ATT_HANDLE_NONE)
{
buf[0] = command;
AttcWriteReq(connId, handle, sizeof(buf), buf);
}
}
/*************************************************************************************************/
/*!
* \brief Process a value received in an ATT read response, notification, or indication
* message. Parameter pHdlList must point to an array of length HRPC_HRS_HDL_LIST_LEN.
* If the attribute handle of the message matches a handle in the handle list the value
* is processed, otherwise it is ignored.
*
* \param pHdlList Characteristic handle list.
* \param pMsg ATT callback message.
*
* \return ATT_SUCCESS if handle is found, ATT_ERR_NOT_FOUND otherwise.
*/
/*************************************************************************************************/
uint8_t HrpcHrsValueUpdate(uint16_t *pHdlList, attEvt_t *pMsg)
{
uint8_t *p;
uint8_t sensorLoc;
uint8_t status = ATT_SUCCESS;
/* heart rate measurement */
if (pMsg->handle == pHdlList[HRPC_HRS_HRM_HDL_IDX])
{
/* parse value */
hrcpHrsParseHrm(pMsg->pValue, pMsg->valueLen);
}
/* body sensor location */
else if (pMsg->handle == pHdlList[HRPC_HRS_BSL_HDL_IDX])
{
/* parse value */
p = pMsg->pValue;
BSTREAM_TO_UINT8(sensorLoc, p);
/* ignore if out of range */
if (sensorLoc <= CH_BSENSOR_LOC_FOOT)
{
APP_TRACE_INFO1("Body sensor location:%d", sensorLoc);
}
}
else
{
status = ATT_ERR_NOT_FOUND;
}
return status;
}