drivers/net/wireless/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 <st3@riseup.net>
   7   Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
   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. */
  45 static inline
  46 u8 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 }
  57 static inline
  58 u8 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). */
  65 static inline
  66 int 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
  78 static inline
  79 int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
  80                               u8 channel)
  81 {
  82         return b43legacy_channel_to_freq_bg(channel);
  83 }
  84
  85 static inline
  86 int 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
  94 static inline
  95 int b43legacy_is_ofdm_rate(int rate)
  96 {
  97         return !b43legacy_is_cck_rate(rate);
  98 }
  99
 100 void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
 101 void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
 102
 103 u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
 104                          u16 routing, u16 offset);
 105 u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
 106                          u16 routing, u16 offset);
 107 void b43legacy_shm_write32(struct b43legacy_wldev *dev,
 108                          u16 routing, u16 offset,
 109                          u32 value);
 110 void b43legacy_shm_write16(struct b43legacy_wldev *dev,
 111                          u16 routing, u16 offset,
 112                          u16 value);
 113
 114 u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
 115 void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
 116
 117 void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
 118
 119 void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
 120
 121 void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
 122 void b43legacy_mac_enable(struct b43legacy_wldev *dev);
 123
 124 void b43legacy_controller_restart(struct b43legacy_wldev *dev,
 125                                   const char *reason);
 126
 127 #endif /* B43legacy_MAIN_H_ */