FreeBSD/Linux Kernel Cross Reference
sys/dev/rtwn/rtl8812a/r12a_beacon.c

     /*-
      * 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>
    __FBSDID("$FreeBSD$");
    
    #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_rtwnreg.h>
    #include <dev/rtwn/if_rtwnvar.h>
    
    #include <dev/rtwn/if_rtwn_ridx.h>
    
    #include <dev/rtwn/rtl8812a/r12a.h>
    #include <dev/rtwn/rtl8812a/r12a_reg.h>
    #include <dev/rtwn/rtl8812a/r12a_tx_desc.h>
    
    void
    r12a_beacon_init(struct rtwn_softc *sc, void *buf, int id)
    {
            struct r12a_tx_desc *txd = (struct r12a_tx_desc *)buf;
    
            txd->flags0 = R12A_FLAGS0_LSG | R12A_FLAGS0_FSG | R12A_FLAGS0_BMCAST;
    
            /*
             * NB: there is no need to setup HWSEQ_EN bit;
             * QSEL_BEACON already implies it.
             */
            txd->txdw1 = htole32(SM(R12A_TXDW1_QSEL, R12A_TXDW1_QSEL_BEACON));
            txd->txdw1 |= htole32(SM(R12A_TXDW1_MACID, RTWN_MACID_BC));
    
            txd->txdw3 = htole32(R12A_TXDW3_DRVRATE);
            txd->txdw3 |= htole32(SM(R12A_TXDW3_SEQ_SEL, id));
    
            txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE, RTWN_RIDX_CCK1));
    
            txd->txdw6 = htole32(SM(R21A_TXDW6_MBSSID, id));
    }
    
    void
    r12a_beacon_set_rate(void *buf, int is5ghz)
    {
            struct r12a_tx_desc *txd = (struct r12a_tx_desc *)buf;
    
            txd->txdw4 &= ~htole32(R12A_TXDW4_DATARATE_M);
            if (is5ghz) {
                    txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE,
                        RTWN_RIDX_OFDM6));
            } else
                    txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE, RTWN_RIDX_CCK1));
    }

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