src/common/hw_features_common.c

   1 /*
   2  * Common hostapd/wpa_supplicant HW features
   3  * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2015, Qualcomm Atheros, Inc.
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "includes.h"
  11
  12 #include "common.h"
  13 #include "defs.h"
  14 #include "hw_features_common.h"
  15
  16
  17 struct hostapd_channel_data * hw_get_channel_chan(struct hostapd_hw_modes *mode,
  18                                                   int chan, int *freq)
  19 {
  20         int i;
  21
  22         if (freq)
  23                 *freq = 0;
  24
  25         if (!mode)
  26                 return NULL;
  27
  28         for (i = 0; i < mode->num_channels; i++) {
  29                 struct hostapd_channel_data *ch = &mode->channels[i];
  30                 if (ch->chan == chan) {
  31                         if (freq)
  32                                 *freq = ch->freq;
  33                         return ch;
  34                 }
  35         }
  36
  37         return NULL;
  38 }
  39
  40
  41 struct hostapd_channel_data * hw_get_channel_freq(struct hostapd_hw_modes *mode,
  42                                                   int freq, int *chan)
  43 {
  44         int i;
  45
  46         if (chan)
  47                 *chan = 0;
  48
  49         if (!mode)
  50                 return NULL;
  51
  52         for (i = 0; i < mode->num_channels; i++) {
  53                 struct hostapd_channel_data *ch = &mode->channels[i];
  54                 if (ch->freq == freq) {
  55                         if (chan)
  56                                 *chan = ch->chan;
  57                         return ch;
  58                 }
  59         }
  60
  61         return NULL;
  62 }
  63
  64
  65 int hw_get_freq(struct hostapd_hw_modes *mode, int chan)
  66 {
  67         int freq;
  68
  69         hw_get_channel_chan(mode, chan, &freq);
  70
  71         return freq;
  72 }
  73
  74
  75 int hw_get_chan(struct hostapd_hw_modes *mode, int freq)
  76 {
  77         int chan;
  78
  79         hw_get_channel_freq(mode, freq, &chan);
  80
  81         return chan;
  82 }