1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3
  4  Broadcom B43legacy wireless driver
  5
  6  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
  7  Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
  8  Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
  9  Copyright (c) 2005  Danny van Dyk <kugelfang@gentoo.org>
 10  Copyright (c) 2005  Andreas Jaggi <andreas.jaggi@waterwave.ch>
 11  Copyright (c) 2007  Larry Finger <Larry.Finger@lwfinger.net>
 12
 13  Some parts of the code in this file are derived from the ipw2200
 14  driver  Copyright(c) 2003 - 2004 Intel Corporation.
 15
 16
 17*/
 18
 19#ifndef B43legacy_MAIN_H_
 20#define B43legacy_MAIN_H_
 21
 22#include "b43legacy.h"
 23
 24
 25#define P4D_BYT3S(magic, nr_bytes)	u8 __p4dding##magic[nr_bytes]
 26#define P4D_BYTES(line, nr_bytes)	P4D_BYT3S(line, nr_bytes)
 27/* Magic helper macro to pad structures. Ignore those above. It's magic. */
 28#define PAD_BYTES(nr_bytes)		P4D_BYTES(__LINE__ , (nr_bytes))
 29
 30
 31/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
 32static inline
 33u8 b43legacy_freq_to_channel_bg(int freq)
 34{
 35	u8 channel;
 36
 37	if (freq == 2484)
 38		channel = 14;
 39	else
 40		channel = (freq - 2407) / 5;
 41
 42	return channel;
 43}
 44static inline
 45u8 b43legacy_freq_to_channel(struct b43legacy_wldev *dev,
 46			     int freq)
 47{
 48	return b43legacy_freq_to_channel_bg(freq);
 49}
 50
 51/* Lightweight function to convert a channel number to a frequency (in Mhz). */
 52static inline
 53int b43legacy_channel_to_freq_bg(u8 channel)
 54{
 55	int freq;
 56
 57	if (channel == 14)
 58		freq = 2484;
 59	else
 60		freq = 2407 + (5 * channel);
 61
 62	return freq;
 63}
 64
 65static inline
 66int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
 67			      u8 channel)
 68{
 69	return b43legacy_channel_to_freq_bg(channel);
 70}
 71
 72static inline
 73int b43legacy_is_cck_rate(int rate)
 74{
 75	return (rate == B43legacy_CCK_RATE_1MB ||
 76		rate == B43legacy_CCK_RATE_2MB ||
 77		rate == B43legacy_CCK_RATE_5MB ||
 78		rate == B43legacy_CCK_RATE_11MB);
 79}
 80
 81static inline
 82int b43legacy_is_ofdm_rate(int rate)
 83{
 84	return !b43legacy_is_cck_rate(rate);
 85}
 86
 87void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
 88void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
 89
 90u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
 91			 u16 routing, u16 offset);
 92u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
 93			 u16 routing, u16 offset);
 94void b43legacy_shm_write32(struct b43legacy_wldev *dev,
 95			 u16 routing, u16 offset,
 96			 u32 value);
 97void b43legacy_shm_write16(struct b43legacy_wldev *dev,
 98			 u16 routing, u16 offset,
 99			 u16 value);
100
101u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
102void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
103
104void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
105
106void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
107
108void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
109void b43legacy_mac_enable(struct b43legacy_wldev *dev);
110
111void b43legacy_controller_restart(struct b43legacy_wldev *dev,
112				  const char *reason);
113
114#endif /* B43legacy_MAIN_H_ */