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/**
******************************************************************************
* @file crs_stm.c
* @author MCD Application Team
* @brief Cable Replacement Service (Custom STM)
******************************************************************************
* @attention
*
* Copyright (c) 2018-2021 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "common_blesvc.h"
/* Private typedef -----------------------------------------------------------*/
typedef struct
{
uint16_t SvcHdle; /**< Service handle */
uint16_t CRSTXCharHdle; /**< Characteristic handle */
uint16_t CRSRXCharHdle; /**< Characteristic handle */
}CRSContext_t;
/* Private defines -----------------------------------------------------------*/
#define BM_UUID_LENGTH UUID_TYPE_128
#define BM_REQ_CHAR_SIZE (3)
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/**
* Request Characteristic UUID
* 0000fe11-8e22-4541-9d4c-21edae82ed19
*/
const uint8_t BM_REQ_CHAR_UUID[16] = {0x19, 0xed, 0x82, 0xae,
0xed, 0x21, 0x4c, 0x9d,
0x41, 0x45, 0x22, 0x8e,
0x11, 0xFE, 0x00, 0x00};
/**
* START of Section BLE_DRIVER_CONTEXT
*/
PLACE_IN_SECTION("BLE_DRIVER_CONTEXT") static CRSContext_t CRSContext;
/**
* END of Section BLE_DRIVER_CONTEXT
*/
/* Private function prototypes -----------------------------------------------*/
static SVCCTL_EvtAckStatus_t CRS_Event_Handler(void *Event);
/* Functions Definition ------------------------------------------------------*/
/* Private functions ----------------------------------------------------------*/
#define COPY_UUID_128(uuid_struct, uuid_15, uuid_14, uuid_13, uuid_12, uuid_11, uuid_10, uuid_9, uuid_8, uuid_7, uuid_6, uuid_5, uuid_4, uuid_3, uuid_2, uuid_1, uuid_0) \
do {\
uuid_struct[0] = uuid_0; uuid_struct[1] = uuid_1; uuid_struct[2] = uuid_2; uuid_struct[3] = uuid_3; \
uuid_struct[4] = uuid_4; uuid_struct[5] = uuid_5; uuid_struct[6] = uuid_6; uuid_struct[7] = uuid_7; \
uuid_struct[8] = uuid_8; uuid_struct[9] = uuid_9; uuid_struct[10] = uuid_10; uuid_struct[11] = uuid_11; \
uuid_struct[12] = uuid_12; uuid_struct[13] = uuid_13; uuid_struct[14] = uuid_14; uuid_struct[15] = uuid_15; \
}while(0)
/* Hardware Characteristics Service */
/*
The following 128bits UUIDs have been generated from the random UUID
generator:
daf4562c-1dfc-11e7-93ae-92361f002671
daf458b6-1dfc-11e7-93ae-92361f002671
daf45d16-1dfc-11e7-93ae-92361f002671
D973F2E0-B19E-11E2-9E96-0800200C9A66: Service 128bits UUID
D973F2E1-B19E-11E2-9E96-0800200C9A66: Characteristic_1 128bits UUID
D973F2E2-B19E-11E2-9E96-0800200C9A66: Characteristic_2 128bits UUID
*/
#define COPY_CRS_UUID(uuid_struct, uuid) \
COPY_UUID_128(uuid_struct, \
uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7], \
uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15])
#define CRS_MAX_RX_CHAR_LEN CRS_MAX_DATA_LEN /**< Maximum length of the RX Characteristic (in bytes). */
#define CRS_MAX_TX_CHAR_LEN CRS_MAX_DATA_LEN /**< Maximum length of the TX Characteristic (in bytes). */
/**
* @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 CRS_Event_Handler(void *Event)
{
SVCCTL_EvtAckStatus_t return_value;
hci_event_pckt *event_pckt;
evt_blecore_aci *blecore_evt;
aci_gatt_attribute_modified_event_rp0 * attribute_modified;
CRSAPP_Notification_evt_t Notification;
return_value = SVCCTL_EvtNotAck;
event_pckt = (hci_event_pckt *)(((hci_uart_pckt*)Event)->data);
switch(event_pckt->evt)
{
case HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE:
{
blecore_evt = (evt_blecore_aci*)event_pckt->data;
switch(blecore_evt->ecode)
{
case ACI_GATT_ATTRIBUTE_MODIFIED_VSEVT_CODE:
{
attribute_modified = (aci_gatt_attribute_modified_event_rp0*)blecore_evt->data;
if(attribute_modified->Attr_Handle == (CRSContext.CRSRXCharHdle + 2))
{
/**
* Descriptor handle
*/
return_value = SVCCTL_EvtAckFlowEnable;
/**
* Notify to application
*/
if(attribute_modified->Attr_Data[0] & COMSVC_Notification)
{
Notification.CRS_Evt_Opcode = CRS_NOTIFY_ENABLED_EVT;
CRSAPP_Notification(&Notification);
}
else
{
Notification.CRS_Evt_Opcode = CRS_NOTIFY_DISABLED_EVT;
CRSAPP_Notification(&Notification);
}
}
else if(attribute_modified->Attr_Handle == (CRSContext.CRSTXCharHdle + 1))
{
/*value handle */
BLE_DBG_CRS_STM_MSG("-- GATT : RX\n");
Notification.CRS_Evt_Opcode = CRS_WRITE_EVT;
Notification.DataTransfered.Length = attribute_modified->Attr_Data_Length;
Notification.DataTransfered.pPayload = attribute_modified->Attr_Data;
CRSAPP_Notification(&Notification);
}
}
break;
default:
break;
}
}
break; /* HCI_HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE_SPECIFIC */
default:
break;
}
return(return_value);
}/* end CRS_Event_Handler */
/* Public functions ----------------------------------------------------------*/
/**
* @brief Service initialization
* @param None
* @retval None
*/
void CRS_STM_Init(void)
{
Char_UUID_t uuid;
tBleStatus hciCmdResult = BLE_STATUS_SUCCESS;
uint8_t service_uuid[] = { CRS_STM_UUID128 };
uint8_t rx_uuid[] = { CRS_STM_RX_UUID128 };
uint8_t tx_uuid[] = { CRS_STM_TX_UUID128 };
/**
* Register the event handler to the BLE controller
*/
SVCCTL_RegisterSvcHandler(CRS_Event_Handler);
/**
* Cable Replacement Service
*
* Max_Attribute_Records = 2*no_of_char + 1
* service_max_attribute_record = 1 for Cable Replacement service +
* 2 for CRS TX characteristic +
* 2 for CRS RX characteristic +
* 1 for client char configuration descriptor
*
*/
COPY_CRS_UUID(uuid.Char_UUID_128, service_uuid);
hciCmdResult = aci_gatt_add_service(
UUID_TYPE_128,
(Service_UUID_t *) &uuid,
PRIMARY_SERVICE,
6,
&(CRSContext.SvcHdle));
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_CRS_STM_MSG("Cable Replacement (CR) Service is added Successfully 0x%02X\n",
CRSContext.SvcHdle);
}
else
{
BLE_DBG_CRS_STM_MSG ("FAILED to add Cable Replacement (CR) Service, Error: 0x%02X !!\n",
hciCmdResult);
}
/**
* Add TX Characteristic
*/
COPY_CRS_UUID(uuid.Char_UUID_128, tx_uuid);
hciCmdResult = aci_gatt_add_char(
CRSContext.SvcHdle,
UUID_TYPE_128,
&uuid ,
CRS_MAX_TX_CHAR_LEN,
CHAR_PROP_WRITE_WITHOUT_RESP|CHAR_PROP_READ,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_ATTRIBUTE_WRITE, /* gattEvtMask */
10, /* encryKeySize */
1, /* isVariable */
&(CRSContext.CRSTXCharHdle));
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_CRS_STM_MSG("TX Characteristic is added Successfully 0x%02X\n",
CRSContext.CRSTXCharHdle);
}
else
{
BLE_DBG_CRS_STM_MSG ("FAILED to add TX Characteristic, Error: 0x%02X !!\n",
hciCmdResult);
}
/**
* Add RX Characteristic
*/
COPY_CRS_UUID(uuid.Char_UUID_128, rx_uuid);
hciCmdResult = aci_gatt_add_char(CRSContext.SvcHdle,
UUID_TYPE_128,
&uuid,
CRS_MAX_RX_CHAR_LEN,
CHAR_PROP_READ|CHAR_PROP_NOTIFY,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_ATTRIBUTE_WRITE, /* gattEvtMask */
10, /* encryKeySize */
1, /* isVariable: 1 */
&(CRSContext.CRSRXCharHdle));
if (hciCmdResult == BLE_STATUS_SUCCESS)
{
BLE_DBG_CRS_STM_MSG("RX Characteristic is added Successfully 0x%02X\n",
CRSContext.CRSRXCharHdle);
}
else
{
BLE_DBG_CRS_STM_MSG ("FAILED to add RX Characteristic, Error: 0x%02X !!\n",
hciCmdResult);
}
return;
}
/**
* @brief Characteristic update
* @param UUID: UUID of the characteristic
* @param Service_Instance: Instance of the service to which the characteristic belongs
*
*/
tBleStatus CRSAPP_Update_Char(uint16_t UUID, uint8_t *pPayload)
{
tBleStatus result = BLE_STATUS_INVALID_PARAMS;
switch(UUID)
{
case CRS_RX_CHAR_UUID:
{
uint8_t size;
size = 0;
while(pPayload[size] != '\0')
{
size++;
}
result = aci_gatt_update_char_value(CRSContext.SvcHdle,
CRSContext.CRSRXCharHdle,
0, /* charValOffset */
size/*CRS_MAX_RX_CHAR_LEN*/, /* charValueLen */
(uint8_t *) pPayload);
}
break;
default:
break;
}
return result;
}/* end CRSAPP_Update_Char() */
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