package/b43/src/main.h

   1 /*
   2
   3   Broadcom B43 wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6                      Stefano Brivio <st3@riseup.net>
   7                      Michael Buesch <mb@bu3sch.de>
   8                      Danny van Dyk <kugelfang@gentoo.org>
   9                      Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10
  11   Some parts of the code in this file are derived from the ipw2200
  12   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful,
  20   but WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22   GNU General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; see the file COPYING.  If not, write to
  26   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  27   Boston, MA 02110-1301, USA.
  28
  29 */
  30
  31 #ifndef B43_MAIN_H_
  32 #define B43_MAIN_H_
  33
  34 #include "b43.h"
  35
  36 #define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
  37 #define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
  38 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
  39 #define PAD_BYTES(nr_bytes)             P4D_BYTES( __LINE__ , (nr_bytes))
  40
  41 /* Lightweight function to convert a frequency (in Mhz) to a channel number. */
  42 static inline u8 b43_freq_to_channel_a(int freq)
  43 {
  44         return ((freq - 5000) / 5);
  45 }
  46 static inline u8 b43_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 u8 b43_freq_to_channel(struct b43_wldev *dev, int freq)
  58 {
  59         if (dev->phy.type == B43_PHYTYPE_A)
  60                 return b43_freq_to_channel_a(freq);
  61         return b43_freq_to_channel_bg(freq);
  62 }
  63
  64 /* Lightweight function to convert a channel number to a frequency (in Mhz). */
  65 static inline int b43_channel_to_freq_a(u8 channel)
  66 {
  67         return (5000 + (5 * channel));
  68 }
  69 static inline int b43_channel_to_freq_bg(u8 channel)
  70 {
  71         int freq;
  72
  73         if (channel == 14)
  74                 freq = 2484;
  75         else
  76                 freq = 2407 + (5 * channel);
  77
  78         return freq;
  79 }
  80 static inline int b43_channel_to_freq(struct b43_wldev *dev, u8 channel)
  81 {
  82         if (dev->phy.type == B43_PHYTYPE_A)
  83                 return b43_channel_to_freq_a(channel);
  84         return b43_channel_to_freq_bg(channel);
  85 }
  86
  87 static inline int b43_is_cck_rate(int rate)
  88 {
  89         return (rate == B43_CCK_RATE_1MB ||
  90                 rate == B43_CCK_RATE_2MB ||
  91                 rate == B43_CCK_RATE_5MB || rate == B43_CCK_RATE_11MB);
  92 }
  93
  94 static inline int b43_is_ofdm_rate(int rate)
  95 {
  96         return !b43_is_cck_rate(rate);
  97 }
  98
  99 void b43_tsf_read(struct b43_wldev *dev, u64 * tsf);
 100 void b43_tsf_write(struct b43_wldev *dev, u64 tsf);
 101
 102 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset);
 103 u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset);
 104 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value);
 105 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value);
 106
 107 u32 b43_hf_read(struct b43_wldev *dev);
 108 void b43_hf_write(struct b43_wldev *dev, u32 value);
 109
 110 void b43_dummy_transmission(struct b43_wldev *dev);
 111
 112 void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags);
 113
 114 void b43_mac_suspend(struct b43_wldev *dev);
 115 void b43_mac_enable(struct b43_wldev *dev);
 116
 117 void b43_controller_restart(struct b43_wldev *dev, const char *reason);
 118
 119 #define B43_PS_ENABLED  (1 << 0)        /* Force enable hardware power saving */
 120 #define B43_PS_DISABLED (1 << 1)        /* Force disable hardware power saving */
 121 #define B43_PS_AWAKE    (1 << 2)        /* Force device awake */
 122 #define B43_PS_ASLEEP   (1 << 3)        /* Force device asleep */
 123 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags);
 124
 125 #endif /* B43_MAIN_H_ */