xref: /freebsd/sys/dev/rtwn/rtl8812a/r12a_beacon.c (revision 02e9120893770924227138ba49df1edb3896112a)
1 /*-
2  * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 #include "opt_wlan.h"
29 
30 #include <sys/param.h>
31 #include <sys/lock.h>
32 #include <sys/mutex.h>
33 #include <sys/mbuf.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/queue.h>
39 #include <sys/taskqueue.h>
40 #include <sys/bus.h>
41 #include <sys/endian.h>
42 #include <sys/linker.h>
43 
44 #include <net/if.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
47 
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_radiotap.h>
50 
51 #include <dev/rtwn/if_rtwnreg.h>
52 #include <dev/rtwn/if_rtwnvar.h>
53 
54 #include <dev/rtwn/if_rtwn_ridx.h>
55 
56 #include <dev/rtwn/rtl8812a/r12a.h>
57 #include <dev/rtwn/rtl8812a/r12a_reg.h>
58 #include <dev/rtwn/rtl8812a/r12a_tx_desc.h>
59 
60 void
61 r12a_beacon_init(struct rtwn_softc *sc, void *buf, int id)
62 {
63 	struct r12a_tx_desc *txd = (struct r12a_tx_desc *)buf;
64 
65 	txd->flags0 = R12A_FLAGS0_LSG | R12A_FLAGS0_FSG | R12A_FLAGS0_BMCAST;
66 
67 	/*
68 	 * NB: there is no need to setup HWSEQ_EN bit;
69 	 * QSEL_BEACON already implies it.
70 	 */
71 	txd->txdw1 = htole32(SM(R12A_TXDW1_QSEL, R12A_TXDW1_QSEL_BEACON));
72 	txd->txdw1 |= htole32(SM(R12A_TXDW1_MACID, RTWN_MACID_BC));
73 
74 	txd->txdw3 = htole32(R12A_TXDW3_DRVRATE);
75 	txd->txdw3 |= htole32(SM(R12A_TXDW3_SEQ_SEL, id));
76 
77 	txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE, RTWN_RIDX_CCK1));
78 
79 	txd->txdw6 = htole32(SM(R21A_TXDW6_MBSSID, id));
80 }
81 
82 void
83 r12a_beacon_set_rate(void *buf, int is5ghz)
84 {
85 	struct r12a_tx_desc *txd = (struct r12a_tx_desc *)buf;
86 
87 	txd->txdw4 &= ~htole32(R12A_TXDW4_DATARATE_M);
88 	if (is5ghz) {
89 		txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE,
90 		    RTWN_RIDX_OFDM6));
91 	} else
92 		txd->txdw4 = htole32(SM(R12A_TXDW4_DATARATE, RTWN_RIDX_CCK1));
93 }
94