crossdriver/dhd.cc

/* Crossdriver (bcmdhd/brcmfmac) logic extracted from bcmdhd dhd.h externs.
 *
 * Copyright 1999-2016, Broadcom Corporation
 * All rights reserved,
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *
 * This software is provided by the copyright holder "as is" and any express or
 * implied warranties, including, but not limited to, the implied warranties of
 * merchantability and fitness for a particular purpose are disclaimed. In no event
 * shall copyright holder be liable for any direct, indirect, incidental, special,
 * exemplary, or consequential damages (including, but not limited to, procurement
 * of substitute goods or services; loss of use, data, or profits; or business
 * interruption) however caused and on any theory of liability, whether in
 * contract, strict liability, or tort (including negligence or otherwise) arising
 * in any way out of the use of this software, even if advised of the possibility
 * of such damage
 */

#include "dhd.h"

#include <memory>

#include "wl_cfg80211.h"

bool get_histograms(wl_wstats_cnt_t wl_stats_cnt, chanspec_t chanspec, uint32_t version,
                    uint32_t rxchain, histograms_report_t* out_report) {
  if (wl_stats_cnt.version > WSTATS_CNT_T_VERSION) {
    // Unexpected wl_stats_cnt version.
    return false;
  }

  const chanspec_t real_chanspec = interpret_chanspec(chanspec, version);
  if (real_chanspec == INVCHANSPEC) {
    return false;
  }

  int band = chanspec & WL_CHANSPEC_BAND_MASK;
  AntennaId antenna_id;
  antenna_id.freq = (band == WL_CHANSPEC_BAND_5G) ? ANTENNA_5G : ANTENNA_2G;
  antenna_id.idx = (rxchain == 1) ? 0 : 1;

  std::memset(out_report, 0, sizeof(histograms_report_t));
  std::memcpy(out_report->rxsnr, wl_stats_cnt.rxsnr, sizeof(out_report->rxsnr));
  std::memcpy(out_report->rxnoiseflr, wl_stats_cnt.rxnoiseflr, sizeof(out_report->rxnoiseflr));
  std::memcpy(out_report->rxrssi, wl_stats_cnt.rxrssi, sizeof(out_report->rxrssi));
  std::memcpy(out_report->rx11b, wl_stats_cnt.rx11b, sizeof(out_report->rx11b));
  std::memcpy(out_report->rx11g, wl_stats_cnt.rx11g, sizeof(out_report->rx11g));
  std::memcpy(out_report->rx11n, wl_stats_cnt.rx11n, sizeof(out_report->rx11n));
  std::memcpy(out_report->rx11ac, wl_stats_cnt.rx11ac, sizeof(out_report->rx11ac));
  std::memcpy(&out_report->antennaid, &antenna_id, sizeof(out_report->antennaid));
  return true;
}