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/*******************************************************************************
* Copyright (C) ST-Ericsson SA 2011
* License terms: 3-clause BSD license
******************************************************************************/
/**
* @addtogroup ldr_communication_serv
* @{
* @addtogroup a2_family
* @{
* @addtogroup ldr_transport_layer
* @{
*/
/*******************************************************************************
* Includes
******************************************************************************/
#include "c_system.h"
#include "r_a2_network.h"
#include "r_a2_transport.h"
#include <stdlib.h>
#include <string.h>
#include "r_basicdefinitions.h"
#include "t_time_utilities.h"
#include "r_debug.h"
#include "r_debug_macro.h"
#include "r_a2_header.h"
#include "r_a2_protocol.h"
#include "r_a2_family.h"
#include "r_a2_speedflash.h"
#include "r_communication_service.h"
#include "t_security_algorithms.h"
/*******************************************************************************
* Declaration of file local functions
******************************************************************************/
static Timer_t *A2_TimerSet(A2_PacketMeta_t *Packet_p, const A2_SendData_LP_t *const InputData_p, Communication_t *Communication_p);
static void A2_Transport_OutHashCallback(const void *const Data_p, uint32 Length, const uint8 *const Hash_p, void *Param_p);
/*******************************************************************************
* File scope types, constants and variables
******************************************************************************/
/*******************************************************************************
* Definition of external functions
******************************************************************************/
/*
* Handles all registered TL processes for A2 protocol family.
*
* @param [in] Communication_p Communication module context.
*
* @retval E_SUCCESS After successful execution.
*/
ErrorCode_e A2_Transport_Poll(Communication_t *Communication_p)
{
ErrorCode_e ReturnValue = E_SUCCESS;
#ifndef CFG_ENABLE_LOADER_TYPE
A2_PacketMeta_t *Packet_p = NULL;
if (A2_SPEEDFLASH_ACTIVE == A2_SPEEDFLASH(Communication_p)->State) {
ReturnValue = A2_Speedflash_Poll(Communication_p);
VERIFY(E_SUCCESS == ReturnValue, ReturnValue);
} else {
ReturnValue = A2_Network_ReceiverHandler(Communication_p);
VERIFY(E_SUCCESS == ReturnValue, ReturnValue);
ReturnValue = A2_Network_TransmiterHandler(Communication_p);
VERIFY(E_SUCCESS == ReturnValue, ReturnValue);
}
Packet_p = (A2_PacketMeta_t *)QUEUE(Communication_p, FifoDequeue_Fn)(OBJECT_QUEUE(Communication_p), Communication_p->Inbound_p);
if (NULL != Packet_p) {
return A2_Command_Process(Communication_p, Packet_p);
}
#endif
ErrorExit:
return ReturnValue;
}
/*
* Function for sending packet in A2 protocol family.
*
* @param [in] Communication_p Communication module context.
* @param [in] InputDataIn_p Pointer to the input data.
*
* @retval E_SUCCESS After successful execution.
* @retval E_FAILED_TO_ALLOCATE_COMM_BUFFER Failed to allocate communication
* buffer.
*/
ErrorCode_e A2_Transport_Send(Communication_t *Communication_p, void *InputDataIn_p)
{
A2_PacketMeta_t *Packet_p = NULL;
A2_SendData_LP_t *InputData_p = (A2_SendData_LP_t *)InputDataIn_p;
Packet_p = (A2_PacketMeta_t *)A2_Network_PacketAllocate(Communication_p, A2_COMMAND_BUFFER_SIZE);
if (NULL == Packet_p) {
A_(printf("a2_transport.c (%d): ** Failed to get available buffers! **\n", __LINE__);)
return E_FAILED_TO_ALLOCATE_COMM_BUFFER;
}
Packet_p->Resend = 0;
Packet_p->CallBack_p = NULL;
Packet_p->Timer_p = A2_TimerSet(Packet_p, InputData_p, Communication_p);
Packet_p->Header = *InputData_p->Header_p;
A2_SerializeHeader(Packet_p->Buffer_p, &Packet_p->Header);
/* setup payload for calculation */
memcpy(Packet_p->Buffer_p + A2_HEADER_LENGTH, InputData_p->Payload_p, Packet_p->Header.DataLength);
/* Calculate Payload CRC */
Packet_p->Communication_p = Communication_p;
if (HASH_NONE != Communication_p->CurrentFamilyHash) {
Communication_p->HashDevice_p->Calculate(OBJECT_HASH(Communication_p),
Communication_p->CurrentFamilyHash,
(void *)Packet_p->Buffer_p, Packet_p->Header.DataLength + A2_HEADER_LENGTH,
(uint8 *)&Packet_p->CRC, (HashCallback_t)A2_Transport_OutHashCallback,
(void *)Packet_p);
} else {
memset(&Packet_p->CRC, 0x0, sizeof(uint16));
Packet_p->Flags = Packet_p->Flags | A2_BUF_PAYLOAD_CRC_CALCULATED;
(void)QUEUE(Packet_p->Communication_p, FifoEnqueue_Fn)(OBJECT_QUEUE(Packet_p->Communication_p), Packet_p->Communication_p->Outbound_p, Packet_p);
}
return E_SUCCESS;
}
/*******************************************************************************
* Definition of internal functions
******************************************************************************/
/*
* Callback function for handling calculated data.
*
* @param [in] Data_p Pointer to the data buffer for calculation.
* @param [in] Length Length of the data for calculation.
* @param [out] Hash_p Pointer to buffer with calculated hash.
* @param [in] Param_p Pointer to extra parameters.
*
* @return none.
*/
static void A2_Transport_OutHashCallback(const void *const Data_p, uint32 Length, const uint8 *const Hash_p, void *Param_p)
{
IDENTIFIER_NOT_USED(Data_p);
IDENTIFIER_NOT_USED(Length);
A2_PacketMeta_t *Packet_p = (A2_PacketMeta_t *)Param_p;
Packet_p->Flags = Packet_p->Flags | A2_BUF_PAYLOAD_CRC_CALCULATED;
memcpy(&Packet_p->CRC, Hash_p, sizeof(uint16));
if (Packet_p->Header.Protocol == PROTO_A2_ACK) {
memcpy((uint8 *)((Packet_p->Buffer_p) + A2_HEADER_LENGTH_ACK), Hash_p, sizeof(uint16));
} else {
memcpy((uint8 *)((Packet_p->Buffer_p) + A2_HEADER_LENGTH + (Packet_p->Header.DataLength)), Hash_p, sizeof(uint16));
}
(void)QUEUE(Packet_p->Communication_p, FifoEnqueue_Fn)(OBJECT_QUEUE(Packet_p->Communication_p), Packet_p->Communication_p->Outbound_p, Packet_p);
}
/*
* Function for Timer setting.
*
* @param [in] Packet_p Pointer to the R15 packet meta data.
* @param [in] InputData_p Pointer to the input parameters with settings.
* @param [in] Communication_p Communication module context.
*
* @return none.
*/
static Timer_t *A2_TimerSet(A2_PacketMeta_t *Packet_p, const A2_SendData_LP_t *const InputData_p, Communication_t *Communication_p)
{
Timer_t *Timer_p = NULL;
if (InputData_p->Time > 0) {
Timer_p = (Timer_t *)malloc(sizeof(Timer_t));
if (NULL == Timer_p) {
return NULL;
}
/* timer data */
Timer_p->Time = InputData_p->Time;
Timer_p->PeriodicalTime = 0;
Timer_p->HandleFunction_p = (HandleFunction_t)(InputData_p->TimerCallBackFn_p);
Timer_p->Data_p = (void *)Packet_p;
Timer_p->Param_p = (void *)Communication_p;
}
return Timer_p;
}
/** @} */
/** @} */
/** @} */
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