1*7453645fSAndriy Voskoboinyk /*- 2*7453645fSAndriy Voskoboinyk * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org> 3*7453645fSAndriy Voskoboinyk * All rights reserved. 4*7453645fSAndriy Voskoboinyk * 5*7453645fSAndriy Voskoboinyk * Redistribution and use in source and binary forms, with or without 6*7453645fSAndriy Voskoboinyk * modification, are permitted provided that the following conditions 7*7453645fSAndriy Voskoboinyk * are met: 8*7453645fSAndriy Voskoboinyk * 1. Redistributions of source code must retain the above copyright 9*7453645fSAndriy Voskoboinyk * notice, this list of conditions and the following disclaimer. 10*7453645fSAndriy Voskoboinyk * 2. Redistributions in binary form must reproduce the above copyright 11*7453645fSAndriy Voskoboinyk * notice, this list of conditions and the following disclaimer in the 12*7453645fSAndriy Voskoboinyk * documentation and/or other materials provided with the distribution. 13*7453645fSAndriy Voskoboinyk * 14*7453645fSAndriy Voskoboinyk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15*7453645fSAndriy Voskoboinyk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*7453645fSAndriy Voskoboinyk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*7453645fSAndriy Voskoboinyk * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18*7453645fSAndriy Voskoboinyk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*7453645fSAndriy Voskoboinyk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*7453645fSAndriy Voskoboinyk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*7453645fSAndriy Voskoboinyk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22*7453645fSAndriy Voskoboinyk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23*7453645fSAndriy Voskoboinyk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*7453645fSAndriy Voskoboinyk * SUCH DAMAGE. 25*7453645fSAndriy Voskoboinyk */ 26*7453645fSAndriy Voskoboinyk 27*7453645fSAndriy Voskoboinyk #include <sys/cdefs.h> 28*7453645fSAndriy Voskoboinyk __FBSDID("$FreeBSD$"); 29*7453645fSAndriy Voskoboinyk 30*7453645fSAndriy Voskoboinyk #include "opt_wlan.h" 31*7453645fSAndriy Voskoboinyk 32*7453645fSAndriy Voskoboinyk #include <sys/param.h> 33*7453645fSAndriy Voskoboinyk #include <sys/lock.h> 34*7453645fSAndriy Voskoboinyk #include <sys/mutex.h> 35*7453645fSAndriy Voskoboinyk #include <sys/mbuf.h> 36*7453645fSAndriy Voskoboinyk #include <sys/kernel.h> 37*7453645fSAndriy Voskoboinyk #include <sys/socket.h> 38*7453645fSAndriy Voskoboinyk #include <sys/systm.h> 39*7453645fSAndriy Voskoboinyk #include <sys/malloc.h> 40*7453645fSAndriy Voskoboinyk #include <sys/queue.h> 41*7453645fSAndriy Voskoboinyk #include <sys/taskqueue.h> 42*7453645fSAndriy Voskoboinyk #include <sys/bus.h> 43*7453645fSAndriy Voskoboinyk #include <sys/endian.h> 44*7453645fSAndriy Voskoboinyk #include <sys/linker.h> 45*7453645fSAndriy Voskoboinyk 46*7453645fSAndriy Voskoboinyk #include <net/if.h> 47*7453645fSAndriy Voskoboinyk #include <net/ethernet.h> 48*7453645fSAndriy Voskoboinyk #include <net/if_media.h> 49*7453645fSAndriy Voskoboinyk 50*7453645fSAndriy Voskoboinyk #include <net80211/ieee80211_var.h> 51*7453645fSAndriy Voskoboinyk #include <net80211/ieee80211_radiotap.h> 52*7453645fSAndriy Voskoboinyk 53*7453645fSAndriy Voskoboinyk #include <dev/rtwn/if_rtwnvar.h> 54*7453645fSAndriy Voskoboinyk 55*7453645fSAndriy Voskoboinyk #include <dev/rtwn/rtl8812a/r12a_rx_desc.h> 56*7453645fSAndriy Voskoboinyk 57*7453645fSAndriy Voskoboinyk #include <dev/rtwn/rtl8821a/r21a.h> 58*7453645fSAndriy Voskoboinyk 59*7453645fSAndriy Voskoboinyk 60*7453645fSAndriy Voskoboinyk int8_t 61*7453645fSAndriy Voskoboinyk r21a_get_rssi_cck(struct rtwn_softc *sc, void *physt) 62*7453645fSAndriy Voskoboinyk { 63*7453645fSAndriy Voskoboinyk struct r12a_rx_phystat *stat = (struct r12a_rx_phystat *)physt; 64*7453645fSAndriy Voskoboinyk int8_t lna_idx, rssi; 65*7453645fSAndriy Voskoboinyk 66*7453645fSAndriy Voskoboinyk lna_idx = (stat->cfosho[0] & 0xe0) >> 5; 67*7453645fSAndriy Voskoboinyk rssi = -6 - 2*(stat->cfosho[0] & 0x1f); /* Pout - (2 * VGA_idx) */ 68*7453645fSAndriy Voskoboinyk 69*7453645fSAndriy Voskoboinyk switch (lna_idx) { 70*7453645fSAndriy Voskoboinyk case 5: 71*7453645fSAndriy Voskoboinyk rssi -= 32; 72*7453645fSAndriy Voskoboinyk break; 73*7453645fSAndriy Voskoboinyk case 4: 74*7453645fSAndriy Voskoboinyk rssi -= 24; 75*7453645fSAndriy Voskoboinyk break; 76*7453645fSAndriy Voskoboinyk case 2: 77*7453645fSAndriy Voskoboinyk rssi -= 11; 78*7453645fSAndriy Voskoboinyk break; 79*7453645fSAndriy Voskoboinyk case 1: 80*7453645fSAndriy Voskoboinyk rssi += 5; 81*7453645fSAndriy Voskoboinyk break; 82*7453645fSAndriy Voskoboinyk case 0: 83*7453645fSAndriy Voskoboinyk rssi += 21; 84*7453645fSAndriy Voskoboinyk break; 85*7453645fSAndriy Voskoboinyk } 86*7453645fSAndriy Voskoboinyk 87*7453645fSAndriy Voskoboinyk return (rssi); 88*7453645fSAndriy Voskoboinyk } 89