FreeBSD/Linux Kernel Cross Reference
sys/dev/rtwn/rtl8821a/r21a_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/rtl8812a/r12a.h>
    #include <dev/rtwn/rtl8812a/r12a_tx_desc.h>
    
    #include <dev/rtwn/rtl8821a/r21a.h>
    #include <dev/rtwn/rtl8821a/r21a_reg.h>
    
    void
    r21a_beacon_init(struct rtwn_softc *sc, void *buf, int id)
    {
            struct r12a_tx_desc *txd = (struct r12a_tx_desc *)buf;
    
            r12a_beacon_init(sc, buf, id);
    
            /* XXX sequence number for beacon 1 is not stable. */
            txd->txdw3 &= ~htole32(R12A_TXDW3_SEQ_SEL_M);
            txd->txdw3 |= htole32(SM(R12A_TXDW3_SEQ_SEL, id * 2));
    }
    
    void
    r21a_beacon_select(struct rtwn_softc *sc, int id)
    {
            switch (id) {
            case 0:
                    /* Switch to port 0 beacon. */
                    rtwn_setbits_1_shift(sc, R21A_DWBCN1_CTRL,
                        R21A_DWBCN1_CTRL_SEL_BCN1, 0, 2);
                    break;
            case 1:
                    /* Switch to port 1 beacon. */
                    rtwn_setbits_1_shift(sc, R21A_DWBCN1_CTRL,
                        0, R21A_DWBCN1_CTRL_SEL_BCN1, 2);
                    break;
            default:
                    KASSERT(0, ("wrong port id %d\n", id));
                    break;
            }
    }

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