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hostapd: Split hostapd_set_freq to helper function

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This allows the functionality to fill in a struct hostapd_freq_params to
be shared.

Signed-hostap: Janusz Dziedzic <janusz.dziedzic@tieto.com>
This commit is contained in:
Janusz Dziedzic 2013-10-16 12:18:52 +03:00 committed by Jouni Malinen
parent e76da50529
commit 72c753d7bb
1 changed files with 42 additions and 24 deletions
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66
src/ap/ap_drv_ops.c
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@ -463,44 +463,44 @@ int hostapd_flush(struct hostapd_data *hapd)
} }
int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq, static int hostapd_set_freq_params(struct hostapd_freq_params *data, int mode,
int channel, int ht_enabled, int vht_enabled, int freq, int channel, int ht_enabled,
int sec_channel_offset, int vht_oper_chwidth, int vht_enabled, int sec_channel_offset,
int center_segment0, int center_segment1) int vht_oper_chwidth, int center_segment0,
int center_segment1)
{ {
struct hostapd_freq_params data;
int tmp; int tmp;
os_memset(&data, 0, sizeof(data)); os_memset(data, 0, sizeof(*data));
data.mode = mode; data->mode = mode;
data.freq = freq; data->freq = freq;
data.channel = channel; data->channel = channel;
data.ht_enabled = ht_enabled; data->ht_enabled = ht_enabled;
data.vht_enabled = vht_enabled; data->vht_enabled = vht_enabled;
data.sec_channel_offset = sec_channel_offset; data->sec_channel_offset = sec_channel_offset;
data.center_freq1 = freq + sec_channel_offset * 10; data->center_freq1 = freq + sec_channel_offset * 10;
data.center_freq2 = 0; data->center_freq2 = 0;
data.bandwidth = sec_channel_offset ? 40 : 20; data->bandwidth = sec_channel_offset ? 40 : 20;
/* /*
* This validation code is probably misplaced, maybe it should be * This validation code is probably misplaced, maybe it should be
* in src/ap/hw_features.c and check the hardware support as well. * in src/ap/hw_features.c and check the hardware support as well.
*/ */
if (data.vht_enabled) switch (vht_oper_chwidth) { if (data->vht_enabled) switch (vht_oper_chwidth) {
case VHT_CHANWIDTH_USE_HT: case VHT_CHANWIDTH_USE_HT:
if (center_segment1) if (center_segment1)
return -1; return -1;
if (5000 + center_segment0 * 5 != data.center_freq1) if (5000 + center_segment0 * 5 != data->center_freq1)
return -1; return -1;
break; break;
case VHT_CHANWIDTH_80P80MHZ: case VHT_CHANWIDTH_80P80MHZ:
if (center_segment1 == center_segment0 + 4 || if (center_segment1 == center_segment0 + 4 ||
center_segment1 == center_segment0 - 4) center_segment1 == center_segment0 - 4)
return -1; return -1;
data.center_freq2 = 5000 + center_segment1 * 5; data->center_freq2 = 5000 + center_segment1 * 5;
/* fall through */ /* fall through */
case VHT_CHANWIDTH_80MHZ: case VHT_CHANWIDTH_80MHZ:
data.bandwidth = 80; data->bandwidth = 80;
if (vht_oper_chwidth == 1 && center_segment1) if (vht_oper_chwidth == 1 && center_segment1)
return -1; return -1;
if (vht_oper_chwidth == 3 && !center_segment1) if (vht_oper_chwidth == 3 && !center_segment1)
@ -510,13 +510,13 @@ int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
/* primary 40 part must match the HT configuration */ /* primary 40 part must match the HT configuration */
tmp = (30 + freq - 5000 - center_segment0 * 5)/20; tmp = (30 + freq - 5000 - center_segment0 * 5)/20;
tmp /= 2; tmp /= 2;
if (data.center_freq1 != 5000 + if (data->center_freq1 != 5000 +
center_segment0 * 5 - 20 + 40 * tmp) center_segment0 * 5 - 20 + 40 * tmp)
return -1; return -1;
data.center_freq1 = 5000 + center_segment0 * 5; data->center_freq1 = 5000 + center_segment0 * 5;
break; break;
case VHT_CHANWIDTH_160MHZ: case VHT_CHANWIDTH_160MHZ:
data.bandwidth = 160; data->bandwidth = 160;
if (center_segment1) if (center_segment1)
return -1; return -1;
if (!sec_channel_offset) if (!sec_channel_offset)
@ -524,12 +524,30 @@ int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
/* primary 40 part must match the HT configuration */ /* primary 40 part must match the HT configuration */
tmp = (70 + freq - 5000 - center_segment0 * 5)/20; tmp = (70 + freq - 5000 - center_segment0 * 5)/20;
tmp /= 2; tmp /= 2;
if (data.center_freq1 != 5000 + if (data->center_freq1 != 5000 +
center_segment0 * 5 - 60 + 40 * tmp) center_segment0 * 5 - 60 + 40 * tmp)
return -1; return -1;
data.center_freq1 = 5000 + center_segment0 * 5; data->center_freq1 = 5000 + center_segment0 * 5;
break; break;
} }
return 0;
}
int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
int channel, int ht_enabled, int vht_enabled,
int sec_channel_offset, int vht_oper_chwidth,
int center_segment0, int center_segment1)
{
struct hostapd_freq_params data;
if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
vht_enabled, sec_channel_offset,
vht_oper_chwidth,
center_segment0, center_segment1))
return -1;
if (hapd->driver == NULL) if (hapd->driver == NULL)
return 0; return 0;
if (hapd->driver->set_freq == NULL) if (hapd->driver->set_freq == NULL)