VILLASnode/fpga/tests/unit/rtds_rtt.cpp

/* RTDS AXI-Stream RTT 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/fpga/card.hpp>
#include <villas/fpga/vlnv.hpp>

#include <villas/fpga/ips/dma.hpp>
#include <villas/fpga/ips/rtds.hpp>
#include <villas/fpga/ips/switch.hpp>

extern struct fpga_card *card;

// cppcheck-suppress unknownMacro
Test(fpga, rtds_rtt, .description = "RTDS: tight rtt") {
  int ret;
  struct fpga_ip *ip, *rtds;
  struct dma_mem buf;
  size_t recvlen;

  std::list<villas::fpga::ip::Rtds *> rtdsIps;
  std::list<villas::fpga::ip::Dma *> dmaIps;

  // Get IP cores
  for (auto &ip : state.cards.front()->ips) {
    if (*ip ==
        villas::fpga::Vlnv("acs.eonerc.rwth-aachen.de:user:rtds_axis:")) {
      auto rtds = reinterpret_cast<villas::fpga::ip::Rtds *>(ip.get());
      rtdsIps.push_back(rtds);
    }

    if (*ip == villas::fpga::Vlnv("xilinx.com:ip:axi_dma:")) {
      auto dma = reinterpret_cast<villas::fpga::ip::Dma *>(ip.get());
      dmaIps.push_back(dma);
    }
  }

  for (auto rtds : rtdsIps) {
    for (auto dma : dmaIps) {

      rtds->connect
    }
  }

  ret = switch_connect(card->sw, rtds, ip);
  cr_assert_eq(ret, 0, "Failed to configure switch");

  ret = switch_connect(card->sw, ip, rtds);
  cr_assert_eq(ret, 0, "Failed to configure switch");

  ret = dma_alloc(ip, &buf, 0x100, 0);
  cr_assert_eq(ret, 0, "Failed to allocate DMA memory");

  while (1) {

    ret = dma_read(ip, buf.base_phys, buf.len);
    cr_assert_eq(ret, 0, "Failed to start DMA read: %d", ret);

    ret = dma_read_complete(ip, NULL, &recvlen);
    cr_assert_eq(ret, 0, "Failed to complete DMA read: %d", ret);

    ret = dma_write(ip, buf.base_phys, recvlen);
    cr_assert_eq(ret, 0, "Failed to start DMA write: %d", ret);

    ret = dma_write_complete(ip, NULL, NULL);
    cr_assert_eq(ret, 0, "Failed to complete DMA write: %d", ret);
  }

  ret = switch_disconnect(card->sw, rtds, ip);
  cr_assert_eq(ret, 0, "Failed to configure switch");

  ret = switch_disconnect(card->sw, ip, rtds);
  cr_assert_eq(ret, 0, "Failed to configure switch");

  ret = dma_free(ip, &buf);
  cr_assert_eq(ret, 0, "Failed to release DMA memory");
}