int* fftBinIndices(double samplingRate, int frameSize)
{
int* cbin = new int[numMelFilters + 2]; // Mel Â˲¨Æ÷¸öÊý
cbin[0] = (int)(lowerFilterFreq / samplingRate * frameSize);
cbin[NUM_MEL_BANDS+1] = (int)(frameSize / 2);
for (int ii = 1; ii <= numMelFilters; ii++) {//
double fc = centerFreq(ii, samplingRate);
cbin[ii] = (int)(fc / samplingRate * frameSize);
}
return cbin;
}
void printFreqInfo(REG_DMN_PAIR_MAPPING *regDomainPair, COUNTRY_CODE_TO_ENUM_RD *country,
REG_DOMAIN *regDmnCur, REG_DMN_FREQ_BAND *freqBand, int *channel_no)
{
int freq, idx;
bool pscan = false, adhoc = true, dfs=false, ht20=false;
char *ht40CapStr = NULL;
unsigned char mode;
unsigned short cFreq = 0;
int rate = RATE_F;
for(freq=freqBand->lowChannel, idx=0;
freq<=freqBand->highChannel;
freq+=freqBand->channelSep, idx++){
mode = freqBand->mode;
/*
* If the current regcode is country code AND
* Country code does not allow 11g AND
* the current channel is a 11G channel,
* then force the mode as 11B
*/
if(country){
if( !(country->allowMode & OFDM_YES) && (mode == MODE_11G)) {
mode = MODE_11B;
}
}
ht40CapStr = NULL; /* stupid code....I am sorry*/
if(mode == MODE_11A) {
if((cFreq = centerFreq(freq, HT40PLUS, true)) != 0) { /*5G don't care + or -*/
if((freqBand->ht40ChanMask >> ((cFreq - freqBand->lowChannel) /
freqBand->channelSep)) & 0x1) {
ht40CapStr = "HT40";
}
}
}else {
if((cFreq = centerFreq(freq, HT40MINUS, false)) != 0) {
if((freqBand->ht40ChanMask >> ((cFreq - freqBand->lowChannel) /
freqBand->channelSep)) & 0x1) {
ht40CapStr = "HT40-";
}
}
if((cFreq = centerFreq(freq, HT40PLUS, false)) != 0) {
if((freqBand->ht40ChanMask >> ((cFreq - freqBand->lowChannel) /
freqBand->channelSep)) & 0x1) {
if(ht40CapStr == NULL) {
ht40CapStr = "HT40+";
}else {
ht40CapStr = "HT40+/-";
}
}
}
}
if(ht40CapStr) {
ht20 = true;
}
if(freqBand->usePassScan & regDmnCur->pscan & regDomainPair->pscanMask){
pscan = true;
}
if(mode == MODE_11A) { /*11A 5G mode*/
if((regDmnCur->flags | regDomainPair->flags5GHz) &
(DISALLOW_ADHOC_11A | ADHOC_NO_11A) )
adhoc = false;
if(regDmnCur->dfsMask & freqBand->useDfs)
dfs = true;
if(country){
if(!(country->allowMode & MCS_HT40_A_YES))
ht40CapStr = NULL;
if(country->allowMode & MCS_HT20_YES)
ht20 = true;
}
if ( freqBand->ht40ChanMask & FREQ_QUARTER_RATE ) {
rate = RATE_Q; /*Quarter rate index in rateStr*/
}
else if ( freqBand->ht40ChanMask & FREQ_HALF_RATE ) {
rate = RATE_H; /*Half rate string index in rateStr*/
}
}else if((mode == MODE_11G) || /*11bg 2.4G mode*/
(mode == MODE_11B) ||
(mode == MODE_11GONLY)) {
if((regDmnCur->flags | regDomainPair->flags2GHz) &
DISALLOW_ADHOC_11G )
adhoc = false;
if(country){
if(!(country->allowMode & MCS_HT40_G_YES))
ht40CapStr = NULL;
if((mode == MODE_11G) && (country->allowMode & MCS_HT20_YES))
ht20 = true;
}
}else {
printf("Error! unknow 80211 mode\n");
exit(0);
}
printf("%-2d %-4d%-2s %-2.1f %-7s %-6s %-1s %-1s %-1s\n",
++(*channel_no),
freq,
ht20? modeStr[(mode & 0x3)+3]: modeStr[mode],
(double)freqBand->power,
pscan? "PASSIVE": "ACTIVE",
dfs? "DFS": "NO_DFS",
adhoc? "Y": "N",
ht40CapStr? "Y": "N",
rateStr[rate]
);
}
