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/**
******************************************************************************
* @file dts.c
* @author MCD Application Team
* @brief Data Transfer Service (Custom)
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "ble_common.h"
#include "ble.h"
#include "dbg_trace.h"
#include "dts.h"
#define UUID_128_SUPPORTED 1
#if (UUID_128_SUPPORTED == 1)
#define DT_UUID_LENGTH UUID_TYPE_128
#else
#define DT_UUID_LENGTH UUID_TYPE_16
#endif
#if (UUID_128_SUPPORTED == 1)
const uint8_t DT_REQ_CHAR_UUID[16] =
{ 0x19, 0xed, 0x82, 0xae,
0xed, 0x21, 0x4c, 0x9d,
0x41, 0x45, 0x22, 0x8e,
0x81, 0xFE, 0x00, 0x00};
#else
const uint8_t DT_REQ_CHAR_UUID[2] = { 0x81, 0xFE };
#endif
#if (UUID_128_SUPPORTED == 1)
const uint8_t DT_REQ_SERV_UUID[16] =
{ 0x19, 0xed, 0x82, 0xae,
0xed, 0x21, 0x4c, 0x9d,
0x41, 0x45, 0x22, 0x8e,
0x80, 0xFE, 0x00, 0x00};
#else
const uint8_t DT_REQ_SERV_UUID[2] = { 0x80, 0xFE };
#endif
/* Private typedef -----------------------------------------------------------*/
typedef enum
{
DTS_STM_NOTIFICATION_MASK = (1 << 0),
DTS_STM_INDICATION_MASK = (1 << 1),
} ClientCharConfMask_t;
typedef struct
{
uint16_t DataTransferSvcHdle; /**< Service handle */
uint16_t DataTransferTxCharHdle; /**< Characteristic handle */
uint16_t DataTransferRxCharHdle; /**< Characteristic handle */
} DataTransferSvcContext_t;
/* Private defines -----------------------------------------------------------*/
#define DATA_TRANSFER_NOTIFICATION_LEN_MAX (20)
#define DATA_TRANSFER_RX_LEN_MAX (255)
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static tBleStatus TX_Update_Char( DTS_STM_Payload_t *pDataValue );
static SVCCTL_EvtAckStatus_t DTS_Event_Handler( void *pckt );
static DataTransferSvcContext_t aDataTransferContext;
/* Functions Definition ------------------------------------------------------*/
/* Private functions ----------------------------------------------------------*/
/**
* @brief Event handler
* @param Event: Address of the buffer holding the Event
* @retval Ack: Return whether the Event has been managed or not
*/
static SVCCTL_EvtAckStatus_t DTS_Event_Handler( void *Event )
{
SVCCTL_EvtAckStatus_t return_value;
hci_event_pckt * event_pckt;
evt_blue_aci * blue_evt;
aci_gatt_attribute_modified_event_rp0 * attribute_modified;
DTS_STM_App_Notification_evt_t Notification;
return_value = SVCCTL_EvtNotAck;
event_pckt = (hci_event_pckt *) (((hci_uart_pckt*) Event)->data);
switch (event_pckt->evt)
{
case EVT_VENDOR:
{
blue_evt = (evt_blue_aci*) event_pckt->data;
switch (blue_evt->ecode)
{
case EVT_BLUE_ATT_EXCHANGE_MTU_RESP:
break;
/* server */
case EVT_BLUE_GATT_ATTRIBUTE_MODIFIED:
{
attribute_modified = (aci_gatt_attribute_modified_event_rp0*) blue_evt->data;
if (attribute_modified->Attr_Handle == (aDataTransferContext.DataTransferTxCharHdle + 2))
{
/**
* Notify to application to start measurement
*/
if (attribute_modified->Attr_Data[0] & DTS_STM_NOTIFICATION_MASK)
{
APP_DBG_MSG("notification enabled\n");
Notification.Evt_Opcode = DTS_STM__NOTIFICATION_ENABLED;
DTS_Notification(&Notification);
}
else
{
APP_DBG_MSG("notification disabled\n");
Notification.Evt_Opcode = DTS_STM_NOTIFICATION_DISABLED;
DTS_Notification(&Notification);
}
}
}
break;
case EVT_BLUE_GATT_TX_POOL_AVAILABLE:
Resume_Notification();
break;
/* end server */
/* end GATT event */
default:
break;
}
}
break; /* HCI_EVT_VENDOR_SPECIFIC */
default:
break;
}
return (return_value);
}/* end SVCCTL_EvtAckStatus_t */
/**
* @brief Feature Characteristic update
* @param Service_Instance: Instance of the service to which the characteristic belongs
* @param pFeatureValue: The address of the new value to be written
* @retval None
*/
static tBleStatus TX_Update_Char( DTS_STM_Payload_t *pDataValue )
{
tBleStatus ret;
/**
* Notification Data Transfer Packet
*/
ret = aci_gatt_update_char_value(
aDataTransferContext.DataTransferSvcHdle,
aDataTransferContext.DataTransferTxCharHdle,
0, /* charValOffset */
pDataValue->Length, /* charValueLen */
(uint8_t *) pDataValue->pPayload);
return ret;
}/* end TX_Update_Char() */
/* Public functions ----------------------------------------------------------*/
/**
* @brief Service initialization
* @param None
* @retval None
*/
void DTS_STM_Init( void )
{
tBleStatus hciCmdResult = BLE_STATUS_FAILED;
/**
* Register the event handler to the BLE controller
*/
SVCCTL_RegisterSvcHandler(DTS_Event_Handler);
/* DT service and characteristics */
hciCmdResult = aci_gatt_add_service(DT_UUID_LENGTH, (Service_UUID_t *) DT_REQ_SERV_UUID,
PRIMARY_SERVICE,
10, &(aDataTransferContext.DataTransferSvcHdle));
if (hciCmdResult != 0)
{
APP_DBG_MSG("error add service\n");
}
/**
* Add Data Transfer TX Characteristic
*/
aci_gatt_add_char(aDataTransferContext.DataTransferSvcHdle,
DT_UUID_LENGTH,
(Char_UUID_t *) DT_REQ_CHAR_UUID,
255, /* DATA_TRANSFER_NOTIFICATION_LEN_MAX, */
CHAR_PROP_NOTIFY,
ATTR_PERMISSION_NONE,
GATT_DONT_NOTIFY_EVENTS, /* gattEvtMask */
10, /* encryKeySize */
1, /* isVariable */
&(aDataTransferContext.DataTransferTxCharHdle));
if (hciCmdResult != 0)
{
APP_DBG_MSG("error add char Tx\n");
}
return;
}
/**
* @brief Characteristic update
* @param UUID: UUID of the characteristic
* @param Service_Instance: Instance of the service to which the characteristic belongs
*
*/
tBleStatus DTS_STM_UpdateChar( uint16_t UUID , uint8_t *pPayload )
{
tBleStatus result = BLE_STATUS_INVALID_PARAMS;
switch (UUID)
{
case DATA_TRANSFER_TX_CHAR_UUID:
result = TX_Update_Char((DTS_STM_Payload_t*) pPayload);
break;
default:
break;
}
return result;
}/* end DTS_STM_UpdateChar() */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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