package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_main.h

   1 /*
   2
   3   Broadcom BCM43xx 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 BCM43xx_MAIN_H_
  32 #define BCM43xx_MAIN_H_
  33
  34 #include "bcm43xx.h"
  35
  36
  37 #define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
  38 #define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
  39 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
  40 #define PAD_BYTES(nr_bytes)             P4D_BYTES( __LINE__ , (nr_bytes))
  41
  42
  43 /* Lightweight function to convert a frequency (in Mhz) to a channel number. */
  44 static inline
  45 u8 bcm43xx_freq_to_channel_a(int freq)
  46 {
  47         return ((freq - 5000) / 5);
  48 }
  49 static inline
  50 u8 bcm43xx_freq_to_channel_bg(int freq)
  51 {
  52         u8 channel;
  53
  54         if (freq == 2484)
  55                 channel = 14;
  56         else
  57                 channel = (freq - 2407) / 5;
  58
  59         return channel;
  60 }
  61 static inline
  62 u8 bcm43xx_freq_to_channel(struct bcm43xx_wldev *dev,
  63                            int freq)
  64 {
  65         if (dev->phy.type == BCM43xx_PHYTYPE_A)
  66                 return bcm43xx_freq_to_channel_a(freq);
  67         return bcm43xx_freq_to_channel_bg(freq);
  68 }
  69
  70 /* Lightweight function to convert a channel number to a frequency (in Mhz). */
  71 static inline
  72 int bcm43xx_channel_to_freq_a(u8 channel)
  73 {
  74         return (5000 + (5 * channel));
  75 }
  76 static inline
  77 int bcm43xx_channel_to_freq_bg(u8 channel)
  78 {
  79         int freq;
  80
  81         if (channel == 14)
  82                 freq = 2484;
  83         else
  84                 freq = 2407 + (5 * channel);
  85
  86         return freq;
  87 }
  88 static inline
  89 int bcm43xx_channel_to_freq(struct bcm43xx_wldev *dev,
  90                             u8 channel)
  91 {
  92         if (dev->phy.type == BCM43xx_PHYTYPE_A)
  93                 return bcm43xx_channel_to_freq_a(channel);
  94         return bcm43xx_channel_to_freq_bg(channel);
  95 }
  96
  97 static inline
  98 int bcm43xx_is_cck_rate(int rate)
  99 {
 100         return (rate == BCM43xx_CCK_RATE_1MB ||
 101                 rate == BCM43xx_CCK_RATE_2MB ||
 102                 rate == BCM43xx_CCK_RATE_5MB ||
 103                 rate == BCM43xx_CCK_RATE_11MB);
 104 }
 105
 106 static inline
 107 int bcm43xx_is_ofdm_rate(int rate)
 108 {
 109         return !bcm43xx_is_cck_rate(rate);
 110 }
 111
 112 static inline
 113 int bcm43xx_is_hw_radio_enabled(struct bcm43xx_wldev *dev)
 114 {
 115         /* function to return state of hardware enable of radio
 116          * returns 0 if radio disabled, 1 if radio enabled
 117          */
 118         struct bcm43xx_phy *phy = &dev->phy;
 119
 120         if (phy->rev >= 3)
 121                 return ((bcm43xx_read32(dev, BCM43xx_MMIO_RADIO_HWENABLED_HI)
 122                                         & BCM43xx_MMIO_RADIO_HWENABLED_HI_MASK)
 123                                         == 0) ? 1 : 0;
 124         else
 125                 return ((bcm43xx_read16(dev, BCM43xx_MMIO_RADIO_HWENABLED_LO)
 126                                         & BCM43xx_MMIO_RADIO_HWENABLED_LO_MASK)
 127                                         == 0) ? 0 : 1;
 128 }
 129
 130 void bcm43xx_tsf_read(struct bcm43xx_wldev *dev, u64 *tsf);
 131 void bcm43xx_tsf_write(struct bcm43xx_wldev *dev, u64 tsf);
 132
 133 u32 bcm43xx_shm_read32(struct bcm43xx_wldev *dev,
 134                        u16 routing, u16 offset);
 135 u16 bcm43xx_shm_read16(struct bcm43xx_wldev *dev,
 136                        u16 routing, u16 offset);
 137 void bcm43xx_shm_write32(struct bcm43xx_wldev *dev,
 138                          u16 routing, u16 offset,
 139                          u32 value);
 140 void bcm43xx_shm_write16(struct bcm43xx_wldev *dev,
 141                          u16 routing, u16 offset,
 142                          u16 value);
 143
 144 u32 bcm43xx_hf_read(struct bcm43xx_wldev *dev);
 145 void bcm43xx_hf_write(struct bcm43xx_wldev *dev, u32 value);
 146
 147 void bcm43xx_dummy_transmission(struct bcm43xx_wldev *dev);
 148
 149 void bcm43xx_wireless_core_reset(struct bcm43xx_wldev *dev, u32 flags);
 150
 151 void bcm43xx_mac_suspend(struct bcm43xx_wldev *dev);
 152 void bcm43xx_mac_enable(struct bcm43xx_wldev *dev);
 153
 154 void bcm43xx_controller_restart(struct bcm43xx_wldev *dev, const char *reason);
 155
 156 #endif /* BCM43xx_MAIN_H_ */