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nl80211: Use helper function for phy_info_freqs()

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This allows one level of indentation to be removed by using a helper
function to process each frequency.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-03-10 16:44:23 +02:00
parent e62a1d43f9
commit 214a77b016
1 changed files with 53 additions and 51 deletions
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104
src/drivers/driver_nl80211.c
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@ -5040,6 +5040,58 @@ static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
}
static void phy_info_freq(struct hostapd_hw_modes *mode,
struct hostapd_channel_data *chan,
struct nlattr *tb_freq[])
{
chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
chan->flag = 0;
/* mode is not set */
if (mode->mode >= NUM_HOSTAPD_MODES) {
/* crude heuristic */
if (chan->freq < 4000)
mode->mode = HOSTAPD_MODE_IEEE80211B;
else if (chan->freq > 50000)
mode->mode = HOSTAPD_MODE_IEEE80211AD;
else
mode->mode = HOSTAPD_MODE_IEEE80211A;
}
switch (mode->mode) {
case HOSTAPD_MODE_IEEE80211AD:
chan->chan = (chan->freq - 56160) / 2160;
break;
case HOSTAPD_MODE_IEEE80211A:
chan->chan = chan->freq / 5 - 1000;
break;
case HOSTAPD_MODE_IEEE80211B:
case HOSTAPD_MODE_IEEE80211G:
if (chan->freq == 2484)
chan->chan = 14;
else
chan->chan = (chan->freq - 2407) / 5;
break;
default:
break;
}
if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
chan->flag |= HOSTAPD_CHAN_DISABLED;
if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN;
if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
chan->flag |= HOSTAPD_CHAN_NO_IBSS;
if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
chan->flag |= HOSTAPD_CHAN_RADAR;
if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
!tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
chan->max_tx_power = nla_get_u32(
tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
}
static int phy_info_freqs(struct phy_info_arg *phy_info,
struct hostapd_hw_modes *mode, struct nlattr *tb)
{
@ -5084,57 +5136,7 @@ static int phy_info_freqs(struct phy_info_arg *phy_info,
nla_data(nl_freq), nla_len(nl_freq), freq_policy);
if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
continue;
mode->channels[idx].freq = nla_get_u32(
tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
mode->channels[idx].flag = 0;
/* mode is not set */
if (mode->mode >= NUM_HOSTAPD_MODES) {
/* crude heuristic */
if (mode->channels[idx].freq < 4000)
mode->mode = HOSTAPD_MODE_IEEE80211B;
else if (mode->channels[idx].freq > 50000)
mode->mode = HOSTAPD_MODE_IEEE80211AD;
else
mode->mode = HOSTAPD_MODE_IEEE80211A;
}
switch (mode->mode) {
case HOSTAPD_MODE_IEEE80211AD:
mode->channels[idx].chan =
(mode->channels[idx].freq - 56160) / 2160;
break;
case HOSTAPD_MODE_IEEE80211A:
mode->channels[idx].chan =
mode->channels[idx].freq / 5 - 1000;
break;
case HOSTAPD_MODE_IEEE80211B:
case HOSTAPD_MODE_IEEE80211G:
if (mode->channels[idx].freq == 2484)
mode->channels[idx].chan = 14;
else
mode->channels[idx].chan =
(mode->channels[idx].freq - 2407) / 5;
break;
default:
break;
}
if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
mode->channels[idx].flag |= HOSTAPD_CHAN_DISABLED;
if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
mode->channels[idx].flag |= HOSTAPD_CHAN_PASSIVE_SCAN;
if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
mode->channels[idx].flag |= HOSTAPD_CHAN_NO_IBSS;
if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
mode->channels[idx].flag |= HOSTAPD_CHAN_RADAR;
if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
!tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
mode->channels[idx].max_tx_power =
nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
phy_info_freq(mode, &mode->channels[idx], tb_freq);
idx++;
}
phy_info->last_chan_idx = idx;