/*- * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org> * 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 AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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 <sys/cdefs.h> #include "opt_wlan.h" #include <sys/param.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/mbuf.h> #include <sys/kernel.h> #include <sys/socket.h> #include <sys/systm.h> #include <sys/malloc.h> #include <sys/queue.h> #include <sys/taskqueue.h> #include <sys/bus.h> #include <sys/endian.h> #include <sys/linker.h> #include <net/if.h> #include <net/ethernet.h> #include <net/if_media.h> #include <net80211/ieee80211_var.h> #include <net80211/ieee80211_radiotap.h> #include <dev/rtwn/if_rtwnvar.h> #include <dev/rtwn/rtl8812a/r12a_rx_desc.h> #include <dev/rtwn/rtl8821a/r21a.h> int8_t r21a_get_rssi_cck(struct rtwn_softc *sc, void *physt) { struct r12a_rx_phystat *stat = (struct r12a_rx_phystat *)physt; int8_t lna_idx, rssi; lna_idx = (stat->cfosho[0] & 0xe0) >> 5; rssi = -6 - 2*(stat->cfosho[0] & 0x1f); /* Pout - (2 * VGA_idx) */ switch (lna_idx) { case 5: rssi -= 32; break; case 4: rssi -= 24; break; case 2: rssi -= 11; break; case 1: rssi += 5; break; case 0: rssi += 21; break; } return (rssi); }