diff options
Diffstat (limited to 'src/lib/decoder/openbtsstuff/GSMCommon.cpp')
| -rw-r--r-- | src/lib/decoder/openbtsstuff/GSMCommon.cpp | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/src/lib/decoder/openbtsstuff/GSMCommon.cpp b/src/lib/decoder/openbtsstuff/GSMCommon.cpp deleted file mode 100644 index 0bec812..0000000 --- a/src/lib/decoder/openbtsstuff/GSMCommon.cpp +++ /dev/null @@ -1,315 +0,0 @@ -/* -* Copyright 2008 Free Software Foundation, Inc. -* -* This software is distributed under the terms of the GNU Public License. -* See the COPYING file in the main directory for details. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. - -*/ - - -#include "GSMCommon.h" - -using namespace GSM; -using namespace std; - - -ostream& GSM::operator<<(ostream& os, L3PD val) -{ - switch (val) { - case L3CallControlPD: os << "Call Control"; break; - case L3MobilityManagementPD: os << "Mobility Management"; break; - case L3RadioResourcePD: os << "Radio Resource"; break; - default: os << hex << "0x" << (int)val << dec; - } - return os; -} - - -const BitVector GSM::gTrainingSequence[] = { - BitVector("00100101110000100010010111"), - BitVector("00101101110111100010110111"), - BitVector("01000011101110100100001110"), - BitVector("01000111101101000100011110"), - BitVector("00011010111001000001101011"), - BitVector("01001110101100000100111010"), - BitVector("10100111110110001010011111"), - BitVector("11101111000100101110111100"), -}; - -const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000"); - -const BitVector GSM::gRACHSynchSequence("01001011011111111001100110101010001111000"); - - - -char encodeGSMChar(char ascii) -{ - // Given an ASCII char, return the corresponding GSM char. - static char reverseTable[256]={0}; - static bool init = false; - if (!init) { - for (size_t i=0; i<sizeof(gGSMAlphabet); i++) { - reverseTable[(unsigned)gGSMAlphabet[i]]=i; - } - init=true; - } - return reverseTable[(unsigned)ascii]; -} - - -char encodeBCDChar(char ascii) -{ - // Given an ASCII char, return the corresponding BCD. - if ((ascii>='0') && (ascii<='9')) return ascii-'0'; - switch (ascii) { - case '.': return 11; - case '*': return 11; - case '#': return 12; - case 'a': return 13; - case 'b': return 14; - case 'c': return 15; - default: return 15; - } -} - - - - -unsigned GSM::uplinkFreqKHz(GSMBand band, unsigned ARFCN) -{ - switch (band) { - case GSM850: - assert((ARFCN<252)&&(ARFCN>129)); - return 824200+200*(ARFCN-128); - case EGSM900: - if (ARFCN<=124) return 890000+200*ARFCN; - assert((ARFCN>974)&&(ARFCN<1024)); - return 890000+200*(ARFCN-1024); - case DCS1800: - assert((ARFCN>511)&&(ARFCN<886)); - return 1710200+200*(ARFCN-512); - case PCS1900: - assert((ARFCN>511)&&(ARFCN<811)); - return 1850200+200*(ARFCN-512); - default: - abort(); - } -} - - -unsigned GSM::downlinkFreqKHz(GSMBand band, unsigned ARFCN) -{ - static unsigned uplinkOffset[] = { - 45000, // 850 - 45000, // 900 - 95000, // 1800 - 80000 // 1900 - }; - return uplinkFreqKHz(band,ARFCN) + uplinkOffset[band]; -} - - - - -int32_t GSM::FNDelta(int32_t v1, int32_t v2) -{ - static const int64_t halfModulus = gHyperframe/2; - int32_t delta = v1-v2; - if (delta>halfModulus) delta -= gHyperframe; - else if (delta<-halfModulus) delta += gHyperframe; - return (int32_t) delta; -} - -int GSM::FNCompare(int32_t v1, int32_t v2) -{ - int32_t delta = FNDelta(v1,v2); - if (delta==0) return 0; - else if (delta>0) return 1; - else return -1; -} - - - - -ostream& GSM::operator<<(ostream& os, const Time& t) -{ - os << t.TN() << ":" << t.FN(); - return os; -} - - - - -void Clock::set(const Time& when) -{ - mLock.lock(); - mBaseTime = Timeval(0); - mBaseFN = when.FN(); - mLock.unlock(); -} - - -int32_t Clock::FN() const -{ - mLock.lock(); - Timeval now; - int deltaSec = now.sec() - mBaseTime.sec(); - int deltaUSec = now.usec() - mBaseTime.usec(); - int elapsedUSec = 1000000*deltaSec + deltaUSec; - int elapsedFrames = elapsedUSec / gFrameMicroseconds; - int32_t currentFN = (mBaseFN + elapsedFrames) % gHyperframe; - mLock.unlock(); - return currentFN; -} - - -void Clock::wait(const Time& when) const -{ - int32_t now = FN(); - int32_t target = when.FN(); - int32_t delta = FNDelta(target,now); - if (delta<1) return; - const int32_t maxSleep = 51*26; - if (delta>maxSleep) delta=maxSleep; - sleepFrames(delta); -} - - - - - - - -ostream& GSM::operator<<(ostream& os, TypeOfNumber type) -{ - switch (type) { - case UnknownTypeOfNumber: os << "unknown"; break; - case InternationalNumber: os << "international"; break; - case NationalNumber: os << "national"; break; - case NetworkSpecificNumber: os << "network-specific"; break; - case ShortCodeNumber: os << "short code"; break; - default: os << "?" << type << "?"; - } - return os; -} - - -ostream& GSM::operator<<(ostream& os, NumberingPlan plan) -{ - switch (plan) { - case UnknownPlan: os << "unknown"; break; - case E164Plan: os << "E.164/ISDN"; break; - case X121Plan: os << "X.121/data"; break; - case F69Plan: os << "F.69/Telex"; break; - case NationalPlan: os << "national"; break; - case PrivatePlan: os << "private"; break; - default: os << "?" << (int)plan << "?"; - } - return os; -} - -ostream& GSM::operator<<(ostream& os, MobileIDType wID) -{ - switch (wID) { - case NoIDType: os << "None"; break; - case IMSIType: os << "IMSI"; break; - case IMEIType: os << "IMEI"; break; - case TMSIType: os << "TMSI"; break; - case IMEISVType: os << "IMEISV"; break; - default: os << "?" << (int)wID << "?"; - } - return os; -} - - -ostream& GSM::operator<<(ostream& os, TypeAndOffset tao) -{ - switch (tao) { - case TDMA_MISC: os << "(misc)"; break; - case TCHF_0: os << "TCH/F"; break; - case TCHH_0: os << "TCH/H-0"; break; - case TCHH_1: os << "TCH/H-1"; break; - case SDCCH_4_0: os << "SDCCH/4-0"; break; - case SDCCH_4_1: os << "SDCCH/4-1"; break; - case SDCCH_4_2: os << "SDCCH/4-2"; break; - case SDCCH_4_3: os << "SDCCH/4-3"; break; - case SDCCH_8_0: os << "SDCCH/8-0"; break; - case SDCCH_8_1: os << "SDCCH/8-1"; break; - case SDCCH_8_2: os << "SDCCH/8-2"; break; - case SDCCH_8_3: os << "SDCCH/8-3"; break; - case SDCCH_8_4: os << "SDCCH/8-4"; break; - case SDCCH_8_5: os << "SDCCH/8-5"; break; - case SDCCH_8_6: os << "SDCCH/8-6"; break; - case SDCCH_8_7: os << "SDCCH/8-7"; break; - case TDMA_BEACON: os << "(beacon)"; break; - default: os << "?" << (int)tao << "?"; - } - return os; -} - -ostream& GSM::operator<<(ostream& os, ChannelType val) -{ - switch (val) { - case UndefinedCHType: os << "undefined"; return os; - case SCHType: os << "SCH"; break; - case FCCHType: os << "FCCH"; break; - case BCCHType: os << "BCCH"; break; - case RACHType: os << "RACH"; break; - case SDCCHType: os << "SDCCH"; break; - case FACCHType: os << "FACCH"; break; - case CCCHType: os << "CCCH"; break; - case SACCHType: os << "SACCH"; break; - case TCHFType: os << "TCH/F"; break; - case TCHHType: os << "TCH/H"; break; - case AnyTCHType: os << "any TCH"; break; - case LoopbackFullType: os << "Loopback Full"; break; - case LoopbackHalfType: os << "Loopback Half"; break; - case AnyDCCHType: os << "any DCCH"; break; - default: os << "?" << (int)val << "?"; - } - return os; -} - - - - -bool Z100Timer::expired() const -{ - // A non-active timer does not expire. - if (!mActive) return false; - return mEndTime.passed(); -} - -void Z100Timer::set() -{ - mEndTime = Timeval(mLimitTime); - mActive=true; -} - -long Z100Timer::remaining() const -{ - if (!mActive) return 0; - long rem = mEndTime.remaining(); - if (rem<0) rem=0; - return rem; -} - -void Z100Timer::wait() const -{ - while (!expired()) msleep(remaining()); -} - -// vim: ts=4 sw=4 |