if_ath_misc.h revision 235679 
1/*-
2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
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 *    without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 *    redistribution must be conditioned upon including a substantially
14 *    similar Disclaimer requirement for further binary redistribution.
15 *
16 * NO WARRANTY
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
28 *
29 * $FreeBSD: head/sys/dev/ath/if_ath_misc.h 235679 2012-05-20 02:49:42Z adrian $
30 */
31#ifndef	__IF_ATH_MISC_H__
32#define	__IF_ATH_MISC_H__
33
34/*
35 * This is where definitions for "public things" in if_ath.c
36 * will go for the time being.
37 *
38 * Anything in here should eventually be moved out of if_ath.c
39 * and into something else.
40 */
41
42/* unaligned little endian access */
43#define LE_READ_2(p)							\
44	((u_int16_t)							\
45	 ((((u_int8_t *)(p))[0]      ) | (((u_int8_t *)(p))[1] <<  8)))
46#define LE_READ_4(p)							\
47	((u_int32_t)							\
48	 ((((u_int8_t *)(p))[0]      ) | (((u_int8_t *)(p))[1] <<  8) |	\
49	  (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
50
51extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
52
53extern struct ath_buf * ath_getbuf(struct ath_softc *sc);
54extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc);
55extern struct ath_buf * ath_buf_clone(struct ath_softc *sc,
56	    const struct ath_buf *bf);
57extern void ath_freebuf(struct ath_softc *sc, struct ath_buf *bf);
58
59extern int ath_reset(struct ifnet *, ATH_RESET_TYPE);
60extern void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq);
61extern void ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf,
62	    int fail);
63extern void ath_tx_update_ratectrl(struct ath_softc *sc,
64	    struct ieee80211_node *ni, struct ath_rc_series *rc,
65	    struct ath_tx_status *ts, int frmlen, int nframes, int nbad);
66
67extern void ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf,
68    int status);
69
70extern void ath_mode_init(struct ath_softc *sc);
71
72extern void ath_setdefantenna(struct ath_softc *sc, u_int antenna);
73
74/*
75 * This is only here so that the RX proc function can call it.
76 * It's very likely that the "start TX after RX" call should be
77 * done via something in if_ath.c, moving "rx tasklet" into
78 * if_ath.c and do the ath_start() call there.  Once that's done,
79 * we can kill this.
80 */
81extern void ath_start(struct ifnet *ifp);
82
83#endif
84