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/*******************************************************************************
* Copyright (C) ST-Ericsson SA 2011
* License terms: 3-clause BSD license
******************************************************************************/
#ifndef T_PROTROM_NETWORK_H_
#define T_PROTROM_NETWORK_H_
/**
* @addtogroup ldr_communication_serv
* @{
* @addtogroup protrom_family
* @{
* @addtogroup ldr_protrom_network_layer
* @{
*/
/*******************************************************************************
* Includes
******************************************************************************/
#include "t_communication_service.h"
#include "t_critical_section.h"
#include "t_protrom_header.h"
/*******************************************************************************
* Types, constants
******************************************************************************/
/** PROTROM protocol ID */
#define PROTROM_PROTOCOL (0xFB)
/** PROTROM CRC length */
#define PROTROM_CRC_LENGTH (2)
/** Defined state of the receiver */
typedef enum {
PROTROM_RECEIVE_HEADER, /**< State for receiving Header.*/
PROTROM_RECEIVE_PAYLOAD, /**< State for receiving Payload.*/
PROTROM_RECEIVE_ERROR, /**< State for error handling.*/
PROTROM_RECEIVE_IDLE /**< State for receiver idle.*/
} Protrom_InboundState_t;
/** Defined state of the transmitter */
typedef enum {
PROTROM_SEND_IDLE, /**< Transmiter idle state.*/
PROTROM_SEND_HEADER, /**< Transmiter send header. */
PROTROM_SEND_PAYLOAD, /**< Transmiter send payload. */
PROTROM_SENDING_HEADER, /**< Transmiter is in process sending header.*/
PROTROM_SENDING_PAYLOAD /**< Transmiter is in process sending payload.*/
} Protrom_OutboundState_t;
/** Structure for the packet meta data type. */
typedef struct Protrom_Packet {
Protrom_Header_t Header; /**< PROTROM header structure. */
uint8 *Buffer_p; /**< Temporary buffer for receiving data.*/
uint16 CRC; /**< Calculated CRC of received packet. */
Communication_t *Communication_p; /**< The communication over which this
packet has been/is to be transferred
over */
} Protrom_Packet_t;
/** Structure for handling incoming PROTROM packets.*/
typedef struct {
/**< State of the state machine for handling incoming PROTROM packets. */
Protrom_InboundState_t State;
/**< Number of requested data for receiving from communication device. */
uint32 ReqData;
/**< Number of receivied data from communication device. */
uint32 RecData;
/**< Number of receivied data from backup buffer used for switching the
* protocol family. */
uint32 RecBackupData;
/**< Offset in the buffer for next data that should be received. */
uint32 ReqBuffOffset;
/**< Temporary pointer to buffer for handling received data.*/
uint8 *Target_p;
/**< Temporary buffer for receiving data. */
uint8 Scratch[PROTROM_HEADER_LENGTH];
/** Number of packets before receiver is stoped. */
uint8 PacketsBeforeReceiverStop;
/** Indicator for stopping the receiver. */
boolean StopTransfer;
/** Temporary structure for handling PROTROM packet.*/
Protrom_Packet_t *Packet_p;
} Protrom_Inbound_t;
/** Structure for handling outgoing PROTROM packets.*/
typedef struct {
/**< State of the state machine for handling outgoing PROTROM packets. */
Protrom_OutboundState_t State;
/** Temporary pointer for handling PROTROM packet.*/
Protrom_Packet_t *Packet_p;
/**< Synchronization object to avoid parallel access in transmitter function. */
CriticalSection_t TxCriticalSection;
} Protrom_Outbound_t;
/** PROTROM Network context */
typedef struct {
/**< Structure for handling incoming PROTROM packets.*/
Protrom_Inbound_t Inbound;
/**< Structure for handling outgoing PROTROM packets.*/
Protrom_Outbound_t Outbound;
} Protrom_NetworkContext_t;
/** @} */
/** @} */
/** @} */
#endif /*T_NETWORK_LAYER_H_*/
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