LXR linux/drivers/net/wireless/broadcom/b43legacy/main.h

   1/*
   2
   3  Broadcom B43legacy wireless driver
   4
   5  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6  Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
   7  Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
   8  Copyright (c) 2005  Danny van Dyk <kugelfang@gentoo.org>
   9  Copyright (c) 2005  Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10  Copyright (c) 2007  Larry Finger <Larry.Finger@lwfinger.net>
  11
  12  Some parts of the code in this file are derived from the ipw2200
  13  driver  Copyright(c) 2003 - 2004 Intel Corporation.
  14
  15  This program is free software; you can redistribute it and/or modify
  16  it under the terms of the GNU General Public License as published by
  17  the Free Software Foundation; either version 2 of the License, or
  18  (at your option) any later version.
  19
  20  This program is distributed in the hope that it will be useful,
  21  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  GNU General Public License for more details.
  24
  25  You should have received a copy of the GNU General Public License
  26  along with this program; see the file COPYING.  If not, write to
  27  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  28  Boston, MA 02110-1301, USA.
  29
  30*/
  31
  32#ifndef B43legacy_MAIN_H_
  33#define B43legacy_MAIN_H_
  34
  35#include "b43legacy.h"
  36
  37
  38#define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
  39#define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
  40/* Magic helper macro to pad structures. Ignore those above. It's magic. */
  41#define PAD_BYTES(nr_bytes)             P4D_BYTES(__LINE__ , (nr_bytes))
  42
  43
  44/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
  45static inline
  46u8 b43legacy_freq_to_channel_bg(int freq)
  47{
  48        u8 channel;
  49
  50        if (freq == 2484)
  51                channel = 14;
  52        else
  53                channel = (freq - 2407) / 5;
  54
  55        return channel;
  56}
  57static inline
  58u8 b43legacy_freq_to_channel(struct b43legacy_wldev *dev,
  59                             int freq)
  60{
  61        return b43legacy_freq_to_channel_bg(freq);
  62}
  63
  64/* Lightweight function to convert a channel number to a frequency (in Mhz). */
  65static inline
  66int b43legacy_channel_to_freq_bg(u8 channel)
  67{
  68        int freq;
  69
  70        if (channel == 14)
  71                freq = 2484;
  72        else
  73                freq = 2407 + (5 * channel);
  74
  75        return freq;
  76}
  77
  78static inline
  79int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
  80                              u8 channel)
  81{
  82        return b43legacy_channel_to_freq_bg(channel);
  83}
  84
  85static inline
  86int b43legacy_is_cck_rate(int rate)
  87{
  88        return (rate == B43legacy_CCK_RATE_1MB ||
  89                rate == B43legacy_CCK_RATE_2MB ||
  90                rate == B43legacy_CCK_RATE_5MB ||
  91                rate == B43legacy_CCK_RATE_11MB);
  92}
  93
  94static inline
  95int b43legacy_is_ofdm_rate(int rate)
  96{
  97        return !b43legacy_is_cck_rate(rate);
  98}
  99
 100void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
 101void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
 102
 103u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
 104                         u16 routing, u16 offset);
 105u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
 106                         u16 routing, u16 offset);
 107void b43legacy_shm_write32(struct b43legacy_wldev *dev,
 108                         u16 routing, u16 offset,
 109                         u32 value);
 110void b43legacy_shm_write16(struct b43legacy_wldev *dev,
 111                         u16 routing, u16 offset,
 112                         u16 value);
 113
 114u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
 115void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
 116
 117void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
 118
 119void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
 120
 121void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
 122void b43legacy_mac_enable(struct b43legacy_wldev *dev);
 123
 124void b43legacy_controller_restart(struct b43legacy_wldev *dev,
 125                                  const char *reason);
 126
 127#endif /* B43legacy_MAIN_H_ */
 128