fifo.cpp

/* FIFO unit test.
 *
 * Author: Steffen Vogel <post@steffenvogel.de>
 * SPDX-FileCopyrightText: 2017 Steffen Vogel <post@steffenvogel.de>
 * SPDX-License-Identifier: Apache-2.0
 */

#include <criterion/criterion.h>

#include <villas/log.hpp>
#include <villas/utils.hpp>

#include <villas/fpga/card.hpp>
#include <villas/fpga/ips/fifo.hpp>

#include "global.hpp"

using namespace villas;

// cppcheck-suppress unknownMacro
Test(fpga, fifo, .description = "FIFO")
{
	ssize_t len;
	char src[255], dst[255];
	size_t count = 0;

	auto logger = logging.get("unit-test:fifo");

	for (auto &ip : state.cards.front()->ips) {
		// Skip non-fifo IPs
		if (*ip != fpga::Vlnv("xilinx.com:ip:axi_fifo_mm_s:"))
			continue;

		logger->info("Testing {}", *ip);

		auto fifo = std::dynamic_pointer_cast<fpga::ip::Fifo>(ip);

		if (not fifo->loopbackPossible()) {
			logger->info("Loopback test not possible for {}", *ip);
			continue;
		}

		if (not fifo->connectLoopback()) {
			continue;
		}

		// Get some random data to compare
		memset(dst, 0, sizeof(dst));
		len = utils::readRandom((char *) src, sizeof(src));
		if (len != sizeof(src)) {
			logger->error("Failed to get random data");
			continue;
		}

		len = fifo->write(src, sizeof(src));
		if (len != sizeof(src)) {
			logger->error("Failed to send to FIFO");
			continue;
		}

		len = fifo->read(dst, sizeof(dst));
		if (len != sizeof(dst)) {
			logger->error("Failed to read from FIFO");
			continue;
		}

		// Compare data
		cr_assert_eq(memcmp(src, dst, sizeof(src)), 0, "Data not equal");

		logger->info(CLR_GRN("Passed"));

		count++;
	}

	cr_assert(count > 0, "No FIFO found");
}