xref: /freebsd/sys/dev/rtwn/rtl8192c/r92c_beacon.c (revision fe75646a0234a261c0013bf1840fdac4acaf0cec)
1 /*-
2  * Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <sys/cdefs.h>
18 #include "opt_wlan.h"
19 
20 #include <sys/param.h>
21 #include <sys/lock.h>
22 #include <sys/mutex.h>
23 #include <sys/mbuf.h>
24 #include <sys/kernel.h>
25 #include <sys/socket.h>
26 #include <sys/systm.h>
27 #include <sys/malloc.h>
28 #include <sys/queue.h>
29 #include <sys/taskqueue.h>
30 #include <sys/bus.h>
31 #include <sys/endian.h>
32 #include <sys/linker.h>
33 
34 #include <net/if.h>
35 #include <net/ethernet.h>
36 #include <net/if_media.h>
37 
38 #include <net80211/ieee80211_var.h>
39 #include <net80211/ieee80211_radiotap.h>
40 
41 #include <dev/rtwn/if_rtwnvar.h>
42 #include <dev/rtwn/if_rtwnreg.h>
43 
44 #include <dev/rtwn/if_rtwn_ridx.h>
45 
46 #include <dev/rtwn/rtl8192c/r92c.h>
47 #include <dev/rtwn/rtl8192c/r92c_var.h>
48 #include <dev/rtwn/rtl8192c/r92c_reg.h>
49 #include <dev/rtwn/rtl8192c/r92c_tx_desc.h>
50 
51 void
52 r92c_beacon_init(struct rtwn_softc *sc, void *buf, int id)
53 {
54 	struct r92c_tx_desc *txd = (struct r92c_tx_desc *)buf;
55 
56 	/*
57 	 * NB: there is no need to setup HWSEQ_EN bit;
58 	 * QSEL_BEACON already implies it.
59 	 */
60 	txd->flags0 |= R92C_FLAGS0_BMCAST | R92C_FLAGS0_FSG | R92C_FLAGS0_LSG;
61 	txd->txdw1 |= htole32(
62 	    SM(R92C_TXDW1_QSEL, R92C_TXDW1_QSEL_BEACON) |
63 	    SM(R92C_TXDW1_RAID, R92C_RAID_11B));
64 
65 	rtwn_r92c_tx_setup_macid(sc, buf, id);
66 	txd->txdw4 |= htole32(R92C_TXDW4_DRVRATE);
67 	txd->txdw4 |= htole32(SM(R92C_TXDW4_SEQ_SEL, id));
68 	txd->txdw4 |= htole32(SM(R92C_TXDW4_PORT_ID, id));
69 	txd->txdw5 |= htole32(SM(R92C_TXDW5_DATARATE, RTWN_RIDX_CCK1));
70 }
71 
72 void
73 r92c_beacon_enable(struct rtwn_softc *sc, int id, int enable)
74 {
75 
76 	if (enable) {
77 		rtwn_setbits_1(sc, R92C_BCN_CTRL(id),
78 		    0, R92C_BCN_CTRL_EN_BCN);
79 	} else {
80 		rtwn_setbits_1(sc, R92C_BCN_CTRL(id),
81 		    R92C_BCN_CTRL_EN_BCN, 0);
82 	}
83 }
84