static int tune_freq(u32 frequency)
{
int ret;
u16 channel;
struct tune_data_t tune_data;
mutex_lock(&(Si47xx_dev->lock));
channel = freq_to_channel(frequency);
Si47xx_dev_wait_flag = TUNE_WAITING;
ret = fmTuneFreq(frequency);
wait();
Si47xx_dev_wait_flag = NO_WAIT;
debug("Si47xx_dev_wait_flag = TUNE_WAITING\n");
if (!(getIntStatus() & STCINT)) {
dev_err(Si47xx_dev->dev, "%s tune is failed!\n", __func__);
fmTuneStatus(1, 1, &tune_data);
mutex_unlock(&(Si47xx_dev->lock));
return -1;
}
ret = fmTuneStatus(0, 1, &tune_data);
mutex_unlock(&(Si47xx_dev->lock));
return ret;
}
int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
const u8 *ie;
u16 ht_cap;
u8 chan_list[P2P_MAX_CHANNELS], channel;
u8 num_channels = 0, num_intol = 0, i;
if (!wpa_s->sme.sched_obss_scan)
return 0;
wpa_s->sme.sched_obss_scan = 0;
if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
return 1;
/*
* Check whether AP uses regulatory triplet or channel triplet in
* country info. Right now the operating class of the BSS channel
* width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
* based on the assumption that operating class triplet is not used in
* beacon frame. If the First Channel Number/Operating Extension
* Identifier octet has a positive integer value of 201 or greater,
* then its operating class triplet.
*
* TODO: If Supported Operating Classes element is present in beacon
* frame, have to lookup operating class in Annex E and fill them in
* 2040 coex frame.
*/
ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
if (ie && (ie[1] >= 6) && (ie[5] >= 201))
return 1;
os_memset(chan_list, 0, sizeof(chan_list));
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
/* Skip other band bss */
if (freq_to_channel(bss->freq, &channel) != WPAS_BAND_2GHZ)
continue;
ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
/* Check whether the channel is already considered */
for (i = 0; i < num_channels; i++) {
if (channel == chan_list[i])
break;
}
if (i != num_channels)
continue;
if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
num_intol++;
chan_list[num_channels++] = channel;
}
}
sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
return 1;
}