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1/*-
2 * Copyright (c) 2002-2008 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/ah_osdep.h 234450 2012-04-19 03:26:21Z adrian $
30 */
31#ifndef _ATH_AH_OSDEP_H_
32#define _ATH_AH_OSDEP_H_
33/*
34 * Atheros Hardware Access Layer (HAL) OS Dependent Definitions.
35 */
36#include <sys/cdefs.h>
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/endian.h>
40#include <sys/linker_set.h>
41
42#include <machine/bus.h>
43
44/*
45 * Bus i/o type definitions.
46 */
47typedef void *HAL_SOFTC;
48typedef bus_space_tag_t HAL_BUS_TAG;
49typedef bus_space_handle_t HAL_BUS_HANDLE;
50
51/*
52 * Linker set writearounds for chip and RF backend registration.
53 */
54#define OS_DATA_SET(set, item) DATA_SET(set, item)
55#define OS_SET_DECLARE(set, ptype) SET_DECLARE(set, ptype)
56#define OS_SET_FOREACH(pvar, set) SET_FOREACH(pvar, set)
57
58/*
59 * Delay n microseconds.
60 */
61#define OS_DELAY(_n) DELAY(_n)
62
63#define OS_INLINE __inline
64#define OS_MEMZERO(_a, _n) bzero((_a), (_n))
65#define OS_MEMCPY(_d, _s, _n) memcpy(_d,_s,_n)
66
67#define abs(_a) __builtin_abs(_a)
68
69struct ath_hal;
70
71/*
72 * The hardware registers are native little-endian byte order.
73 * Big-endian hosts are handled by enabling hardware byte-swap
74 * of register reads and writes at reset. But the PCI clock
75 * domain registers are not byte swapped! Thus, on big-endian
76 * platforms we have to explicitly byte-swap those registers.
77 * OS_REG_UNSWAPPED identifies the registers that need special handling.
78 */
79#if _BYTE_ORDER == _BIG_ENDIAN
80#define OS_REG_UNSWAPPED(_reg) \
81 (((_reg) >= 0x4000 && (_reg) < 0x5000) || \
82 ((_reg) >= 0x7000 && (_reg) < 0x8000))
83#else /* _BYTE_ORDER == _LITTLE_ENDIAN */
84#define OS_REG_UNSWAPPED(_reg) (0)
85#endif /* _BYTE_ORDER */
86
87/*
88 * Register read/write operations are either handled through
89 * platform-dependent routines (or when debugging is enabled
90 * with AH_DEBUG); or they are inline expanded using the macros
91 * defined below.
92 */
93#if defined(AH_DEBUG) || defined(AH_REGOPS_FUNC) || defined(AH_DEBUG_ALQ)
94#define OS_REG_WRITE(_ah, _reg, _val) ath_hal_reg_write(_ah, _reg, _val)
95#define OS_REG_READ(_ah, _reg) ath_hal_reg_read(_ah, _reg)
96
97extern void ath_hal_reg_write(struct ath_hal *ah, u_int reg, u_int32_t val);
98extern u_int32_t ath_hal_reg_read(struct ath_hal *ah, u_int reg);
99#else
100#define OS_REG_WRITE(_ah, _reg, _val) \
101 bus_space_write_4((bus_space_tag_t)(_ah)->ah_st, \
102 (bus_space_handle_t)(_ah)->ah_sh, (_reg), (_val))
103#define OS_REG_READ(_ah, _reg) \
104 bus_space_read_4((bus_space_tag_t)(_ah)->ah_st, \
105 (bus_space_handle_t)(_ah)->ah_sh, (_reg))
106#endif
107
108#ifdef AH_DEBUG_ALQ
109extern void OS_MARK(struct ath_hal *, u_int id, u_int32_t value);
110#else
111#define OS_MARK(_ah, _id, _v)
112#endif
113
114#endif /* _ATH_AH_OSDEP_H_ */