eive-obsw/linux/csp/CspComIF.cpp
Robin Mueller 77c45c0de9
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2022-01-17 15:58:27 +01:00

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C++

#include "CspComIF.h"
#include <csp/drivers/can_socketcan.h>
#include <fsfw/serialize/SerializeAdapter.h>
#include <fsfw/serviceinterface/ServiceInterfaceStream.h>
#include "CspCookie.h"
CspComIF::CspComIF(object_id_t objectId) : SystemObject(objectId) {}
CspComIF::~CspComIF() {}
ReturnValue_t CspComIF::initializeInterface(CookieIF* cookie) {
if (cookie == nullptr) {
return NULLPOINTER;
}
CspCookie* cspCookie = dynamic_cast<CspCookie*>(cookie);
if (cspCookie == nullptr) {
return NULLPOINTER;
}
/* Perform CAN and CSP initialization only once */
if (cspDeviceMap.empty()) {
sif::info << "Performing " << canInterface << " initialization.." << std::endl;
/* Define the memory to allocate for the CSP stack */
int buf_count = 10;
int buf_size = 300;
/* Init CSP and CSP buffer system */
if (csp_init(cspOwnAddress) != CSP_ERR_NONE ||
csp_buffer_init(buf_count, buf_size) != CSP_ERR_NONE) {
sif::error << "Failed to init CSP\r\n" << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
int promisc = 0; // Set filter mode on
csp_iface_t* csp_if_ptr = &csp_if;
csp_if_ptr = csp_can_socketcan_init(canInterface, bitrate, promisc);
/* Set default route and start router */
uint8_t address = CSP_DEFAULT_ROUTE;
uint8_t netmask = 0;
uint8_t mac = CSP_NODE_MAC;
int result = csp_rtable_set(address, netmask, csp_if_ptr, mac);
if (result != CSP_ERR_NONE) {
sif::error << "Failed to add can interface to router table" << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
/* Start the route task */
unsigned int task_stack_size = 500;
unsigned int priority = 0;
result = csp_route_start_task(task_stack_size, priority);
if (result != CSP_ERR_NONE) {
sif::error << "Failed to start csp route task" << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
sif::info << canInterface << " initialized successfully" << std::endl;
}
uint8_t cspAddress = cspCookie->getCspAddress();
uint16_t maxReplyLength = cspCookie->getMaxReplyLength();
if (cspDeviceMap.find(cspAddress) == cspDeviceMap.end()) {
/* Insert device information in CSP map */
cspDeviceMap.emplace(cspAddress, vectorBuffer(maxReplyLength));
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CspComIF::sendMessage(CookieIF* cookie, const uint8_t* sendData, size_t sendLen) {
int result;
if (cookie == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
CspCookie* cspCookie = dynamic_cast<CspCookie*>(cookie);
if (cspCookie == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
/* Extract csp port and bytes to query from command buffer */
uint8_t cspPort;
uint16_t querySize = 0;
result = getPortAndQuerySize(&sendData, &sendLen, &cspPort, &querySize);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
uint8_t cspAddress = cspCookie->getCspAddress();
switch (cspPort) {
case (Ports::CSP_PING): {
initiatePingRequest(cspAddress, querySize);
break;
}
case (Ports::CSP_REBOOT): {
csp_reboot(cspAddress);
break;
}
case (Ports::P60_PORT_GNDWDT_RESET):
case (Ports::P60_PORT_RPARAM): {
/* No CSP fixed port was selected. Send data to the specified port and
* wait for querySize number of bytes */
result = cspTransfer(cspAddress, cspPort, sendData, sendLen, querySize);
if (result != HasReturnvaluesIF::RETURN_OK) {
return HasReturnvaluesIF::RETURN_FAILED;
}
replySize = querySize;
break;
}
default:
sif::error << "CspComIF: Invalid port specified" << std::endl;
break;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CspComIF::getSendSuccess(CookieIF* cookie) { return HasReturnvaluesIF::RETURN_OK; }
ReturnValue_t CspComIF::requestReceiveMessage(CookieIF* cookie, size_t requestLen) {
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CspComIF::readReceivedMessage(CookieIF* cookie, uint8_t** buffer, size_t* size) {
if (cookie == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
CspCookie* cspCookie = dynamic_cast<CspCookie*>(cookie);
if (cspCookie == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
uint8_t cspAddress = cspCookie->getCspAddress();
*buffer = cspDeviceMap[cspAddress].data();
*size = replySize;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CspComIF::cspTransfer(uint8_t cspAddress, uint8_t cspPort, const uint8_t* cmdBuffer,
int cmdLen, uint16_t querySize) {
uint32_t timeout_ms = 1000;
uint16_t bytesRead = 0;
int32_t expectedSize = (int32_t)querySize;
vectorBufferIter iter = cspDeviceMap.find(cspAddress);
if (iter == cspDeviceMap.end()) {
sif::error << "CSP device with address " << cspAddress << " no found in"
<< " device map" << std::endl;
}
uint8_t* replyBuffer = iter->second.data();
csp_conn_t* conn = csp_connect(CSP_PRIO_HIGH, cspAddress, cspPort, 0, CSP_O_NONE);
csp_packet_t* commandPacket = (csp_packet_t*)csp_buffer_get(cmdLen);
if (commandPacket == NULL) {
sif::error << "CspComIF::cspTransfer: Failed to get memory for a csp packet from the csp "
<< "stack" << std::endl;
csp_close(conn);
return RETURN_FAILED;
}
memcpy(commandPacket->data, cmdBuffer, cmdLen);
commandPacket->length = cmdLen;
if (!csp_send(conn, commandPacket, timeout_ms)) {
csp_buffer_free(commandPacket);
sif::error << "CspComIF::cspTransfer: Failed to send csp packet" << std::endl;
csp_close(conn);
return RETURN_FAILED;
}
/* Return when no reply is expected */
if (expectedSize == 0) {
return RETURN_OK;
}
csp_packet_t* reply;
reply = csp_read(conn, timeout_ms);
if (reply == NULL) {
sif::error << "CspComIF::cspTransfer: Failed to read csp packet" << std::endl;
csp_close(conn);
return RETURN_FAILED;
}
memcpy(replyBuffer, reply->data, reply->length);
expectedSize = expectedSize - reply->length;
bytesRead += reply->length;
csp_buffer_free(reply);
while (expectedSize > 0) {
reply = csp_read(conn, timeout_ms);
if (reply == NULL) {
sif::error << "CspComIF::cspTransfer: Failed to read csp packet" << std::endl;
csp_close(conn);
return RETURN_FAILED;
}
if ((reply->length + bytesRead) > iter->second.size()) {
sif::error << "CspComIF::cspTransfer: Reply buffer to short" << std::endl;
csp_buffer_free(reply);
csp_close(conn);
return RETURN_FAILED;
}
memcpy(replyBuffer + bytesRead, reply->data, reply->length);
expectedSize = expectedSize - reply->length;
bytesRead += reply->length;
csp_buffer_free(reply);
}
if (expectedSize != 0) {
sif::error << "CspComIF::cspTransfer: Received more bytes than requested" << std::endl;
sif::debug << "CspComIF::cspTransfer: Received bytes: " << bytesRead << std::endl;
csp_close(conn);
return RETURN_FAILED;
}
csp_close(conn);
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t CspComIF::getPortAndQuerySize(const uint8_t** sendData, size_t* sendLen,
uint8_t* cspPort, uint16_t* querySize) {
ReturnValue_t result =
SerializeAdapter::deSerialize(cspPort, sendData, sendLen, SerializeIF::Endianness::BIG);
if (result != HasReturnvaluesIF::RETURN_OK) {
sif::error << "CspComIF: Failed to deserialize CSP port from command "
<< "buffer" << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
SerializeAdapter::deSerialize(querySize, sendData, sendLen, SerializeIF::Endianness::BIG);
if (result != HasReturnvaluesIF::RETURN_OK) {
sif::error << "CspComIF: Failed to deserialize querySize from command "
<< "buffer" << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
void CspComIF::initiatePingRequest(uint8_t cspAddress, uint16_t querySize) {
uint32_t timeout_ms = 500;
uint32_t replyTime = csp_ping(cspAddress, timeout_ms, querySize, CSP_O_NONE);
sif::info << "Ping address: " << cspAddress << ", reply after " << replyTime << " ms"
<< std::endl;
/* Store reply time in reply buffer * */
uint8_t* replyBuffer = cspDeviceMap[cspAddress].data();
memcpy(replyBuffer, &replyTime, sizeof(replyTime));
replySize = sizeof(replyTime);
}