if_ath_misc.h revision 218065 
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 218065 2011-01-29 11:35:23Z 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);
55
56#endif
57