drivers/net/wireless/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 <mbuesch@freenet.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 #ifdef CONFIG_BCM947XX
  37 #define atoi(str) simple_strtoul(((str != NULL) ? str : ""), NULL, 0)
  38
  39 static inline void e_aton(char *str, char *dest)
  40 {
  41         int i = 0;
  42         u16 *d = (u16 *) dest;
  43
  44         for (;;) {
  45                 dest[i++] = (char) simple_strtoul(str, NULL, 16);
  46                 str += 2;
  47                 if (!*str++ || i == 6)
  48                         break;
  49         }
  50         for (i = 0; i < 3; i++)
  51                 d[i] = cpu_to_be16(d[i]);
  52 }
  53 #endif
  54
  55 #define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
  56 #define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
  57 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
  58 #define PAD_BYTES(nr_bytes)             P4D_BYTES( __LINE__ , (nr_bytes))
  59
  60
  61 /* Lightweight function to convert a frequency (in Mhz) to a channel number. */
  62 static inline
  63 u8 bcm43xx_freq_to_channel_a(int freq)
  64 {
  65         return ((freq - 5000) / 5);
  66 }
  67 static inline
  68 u8 bcm43xx_freq_to_channel_bg(int freq)
  69 {
  70         u8 channel;
  71
  72         if (freq == 2484)
  73                 channel = 14;
  74         else
  75                 channel = (freq - 2407) / 5;
  76
  77         return channel;
  78 }
  79 static inline
  80 u8 bcm43xx_freq_to_channel(struct bcm43xx_private *bcm,
  81                            int freq)
  82 {
  83         if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_A)
  84                 return bcm43xx_freq_to_channel_a(freq);
  85         return bcm43xx_freq_to_channel_bg(freq);
  86 }
  87
  88 /* Lightweight function to convert a channel number to a frequency (in Mhz). */
  89 static inline
  90 int bcm43xx_channel_to_freq_a(u8 channel)
  91 {
  92         return (5000 + (5 * channel));
  93 }
  94 static inline
  95 int bcm43xx_channel_to_freq_bg(u8 channel)
  96 {
  97         int freq;
  98
  99         if (channel == 14)
 100                 freq = 2484;
 101         else
 102                 freq = 2407 + (5 * channel);
 103
 104         return freq;
 105 }
 106 static inline
 107 int bcm43xx_channel_to_freq(struct bcm43xx_private *bcm,
 108                             u8 channel)
 109 {
 110         if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_A)
 111                 return bcm43xx_channel_to_freq_a(channel);
 112         return bcm43xx_channel_to_freq_bg(channel);
 113 }
 114
 115 /* Lightweight function to check if a channel number is valid.
 116  * Note that this does _NOT_ check for geographical restrictions!
 117  */
 118 static inline
 119 int bcm43xx_is_valid_channel_a(u8 channel)
 120 {
 121         return (channel <= 200);
 122 }
 123 static inline
 124 int bcm43xx_is_valid_channel_bg(u8 channel)
 125 {
 126         return (channel >= 1 && channel <= 14);
 127 }
 128 static inline
 129 int bcm43xx_is_valid_channel(struct bcm43xx_private *bcm,
 130                              u8 channel)
 131 {
 132         if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_A)
 133                 return bcm43xx_is_valid_channel_a(channel);
 134         return bcm43xx_is_valid_channel_bg(channel);
 135 }
 136
 137 void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf);
 138 void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf);
 139
 140 void bcm43xx_set_iwmode(struct bcm43xx_private *bcm,
 141                         int iw_mode);
 142
 143 u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm,
 144                        u16 routing, u16 offset);
 145 u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm,
 146                        u16 routing, u16 offset);
 147 void bcm43xx_shm_write32(struct bcm43xx_private *bcm,
 148                          u16 routing, u16 offset,
 149                          u32 value);
 150 void bcm43xx_shm_write16(struct bcm43xx_private *bcm,
 151                          u16 routing, u16 offset,
 152                          u16 value);
 153
 154 void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm);
 155
 156 int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core);
 157
 158 void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy);
 159
 160 void bcm43xx_mac_suspend(struct bcm43xx_private *bcm);
 161 void bcm43xx_mac_enable(struct bcm43xx_private *bcm);
 162
 163 void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason);
 164
 165 int bcm43xx_sprom_read(struct bcm43xx_private *bcm, u16 *sprom);
 166 int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom);
 167
 168 #endif /* BCM43xx_MAIN_H_ */