X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?p=o-du%2Fphy.git;a=blobdiff_plain;f=fhi_lib%2Fapp%2Fsrc%2Fcommon.c;fp=fhi_lib%2Fapp%2Fsrc%2Fcommon.c;h=d9b5d0c65d018d8124d29ecc0b79f1d10a95d102;hp=0000000000000000000000000000000000000000;hb=cef07f74965b1749dd909fc1322e211489fea2ea;hpb=bc60e3a69129edf1c21a01683f84a77483f6e3cc diff --git a/fhi_lib/app/src/common.c b/fhi_lib/app/src/common.c new file mode 100644 index 0000000..d9b5d0c --- /dev/null +++ b/fhi_lib/app/src/common.c @@ -0,0 +1,668 @@ +/****************************************************************************** +* +* Copyright (c) 2019 Intel. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +* +*******************************************************************************/ + + +#include +#include +#include +#include +#include + +#include "common.h" +#include "xran_fh_o_du.h" +#include "xran_pkt.h" +#include "xran_pkt_up.h" +#include "xran_cp_api.h" +#include "xran_up_api.h" + +#include "xran_mlog_lnx.h" + +extern enum app_state state; + +int iq_playback_buffer_size_dl = IQ_PLAYBACK_BUFFER_BYTES; +int iq_playback_buffer_size_ul = IQ_PLAYBACK_BUFFER_BYTES; + +uint8_t numCCPorts = 1; +/* Number of antennas supported by front-end */ + +uint8_t num_eAxc = 4; +/* Number of CPRI ports supported by front-end */ + +int16_t *p_tx_play_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t tx_play_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; +int32_t tx_play_buffer_position[MAX_ANT_CARRIER_SUPPORTED]; + +int16_t *p_tx_prach_play_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t tx_prach_play_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; +int32_t tx_prach_play_buffer_position[MAX_ANT_CARRIER_SUPPORTED]; + +int16_t *p_rx_log_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t rx_log_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; +int32_t rx_log_buffer_position[MAX_ANT_CARRIER_SUPPORTED]; + +int16_t *p_prach_log_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t prach_log_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; +int32_t prach_log_buffer_position[MAX_ANT_CARRIER_SUPPORTED]; + +int16_t *p_tx_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t tx_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; + +int16_t *p_rx_buffer[MAX_ANT_CARRIER_SUPPORTED]; +int32_t rx_buffer_size[MAX_ANT_CARRIER_SUPPORTED]; + + +// F1 Tables 38.101-1 Table 5.3.2-1. Maximum transmission bandwidth configuration NRB +uint16_t nNumRbsPerSymF1[3][13] = +{ + // 5MHz 10MHz 15MHz 20 MHz 25 MHz 30 MHz 40 MHz 50MHz 60 MHz 70 MHz 80 MHz 90 MHz 100 MHz + {25, 52, 79, 106, 133, 160, 216, 270, 0, 0, 0, 0, 0}, // Numerology 0 (15KHz) + {11, 24, 38, 51, 65, 78, 106, 133, 162, 0, 217, 245, 273}, // Numerology 1 (30KHz) + {0, 11, 18, 24, 31, 38, 51, 65, 79, 0, 107, 121, 135} // Numerology 2 (60KHz) +}; + +// F2 Tables 38.101-2 Table 5.3.2-1. Maximum transmission bandwidth configuration NRB +uint16_t nNumRbsPerSymF2[2][4] = +{ + // 50Mhz 100MHz 200MHz 400MHz + {66, 132, 264, 0}, // Numerology 2 (60KHz) + {32, 66, 132, 264} // Numerology 3 (120KHz) +}; + +// 38.211 - Table 4.2.1 +uint16_t nSubCarrierSpacing[5] = +{ + 15, // mu = 0 + 30, // mu = 1 + 60, // mu = 2 + 120, // mu = 3 + 240 // mu = 4 +}; + +// TTI interval in us (slot duration) +uint16_t nTtiInterval[4] = +{ + 1000, // mu = 0 + 500, // mu = 1 + 250, // mu = 2 + 125, // mu = 3 +}; + + +// F1 Tables 38.101-1 Table F.5.3. Window length for normal CP +uint16_t nCpSizeF1[3][13][2] = +{ + // 5MHz 10MHz 15MHz 20 MHz 25 MHz 30 MHz 40 MHz 50MHz 60 MHz 70 MHz 80 MHz 90 MHz 100 MHz + {{40, 36}, {80, 72}, {120, 108}, {160, 144}, {160, 144}, {240, 216}, {320, 288}, {320, 288}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}}, // Numerology 0 (15KHz) + {{22, 18}, {44, 36}, {66, 54}, {88, 72}, {88, 72}, {132, 108}, {176, 144}, {176, 144}, {264, 216}, {264, 216}, {352, 288}, {352, 288}, {352, 288}}, // Numerology 1 (30KHz) + { {0, 0}, {26, 18}, {39, 27}, {52, 36}, {52, 36}, {78, 54}, {104, 72}, {104, 72}, {156, 108}, {156, 108}, {208, 144}, {208, 144}, {208, 144}}, // Numerology 2 (60KHz) +}; + +// F2 Tables 38.101-2 Table F.5.3. Window length for normal CP +int16_t nCpSizeF2[2][4][2] = +{ + // 50Mhz 100MHz 200MHz 400MHz + { {0, 0}, {104, 72}, {208, 144}, {416, 288}}, // Numerology 2 (60KHz) + {{68, 36}, {136, 72}, {272, 144}, {544, 288}}, // Numerology 3 (120KHz) +}; + +uint32_t gMaxSlotNum; +uint32_t gNumDLCtx; +uint32_t gNumULCtx; +uint32_t gDLResetAdvance; +uint32_t gDLProcAdvance; +uint32_t gULProcAdvance; + +static uint16_t g_NumSlotTDDLoop[XRAN_MAX_SECTOR_NR] = { XRAN_NUM_OF_SLOT_IN_TDD_LOOP }; +static uint16_t g_NumDLSymSp[XRAN_MAX_SECTOR_NR][XRAN_NUM_OF_SLOT_IN_TDD_LOOP] = {0}; +static uint16_t g_NumULSymSp[XRAN_MAX_SECTOR_NR][XRAN_NUM_OF_SLOT_IN_TDD_LOOP] = {0}; +static uint8_t g_SlotType[XRAN_MAX_SECTOR_NR][XRAN_NUM_OF_SLOT_IN_TDD_LOOP] = {{XRAN_SLOT_TYPE_INVALID}}; +float g_UlRate[XRAN_MAX_SECTOR_NR] = {0.0}; +float g_DlRate[XRAN_MAX_SECTOR_NR] = {0.0}; + +uint32_t app_xran_get_tti_interval(uint8_t nMu) +{ + if (nMu < 4) + { + return nTtiInterval[nMu]; + } + else + { + printf("ERROR: %s Mu[%d] is not valid\n",__FUNCTION__, nMu); + } + + return 0; +} + +uint32_t app_xran_get_scs(uint8_t nMu) +{ + if (nMu <= 3) + { + return nSubCarrierSpacing[nMu]; + } + else + { + printf("ERROR: %s Mu[%d] is not valid\n",__FUNCTION__, nMu); + } + + return 0; +} + + + + +//------------------------------------------------------------------------------------------- +/** @ingroup group_nr5g_source_phy_common + * + * @param[in] nNumerology - Numerology determine sub carrier spacing, Value: 0->4 0: 15khz, 1: 30khz, 2: 60khz 3: 120khz, 4: 240khz + * @param[in] nBandwidth - Carrier bandwidth for in MHz. Value: 5->400 + * @param[in] nAbsFrePointA - Abs Freq Point A of the Carrier Center Frequency for in KHz Value: 450000->52600000 + * + * @return Number of RBs in cell + * + * @description + * Returns number of RBs based on 38.101-1 and 38.101-2 for the cell + * +**/ +//------------------------------------------------------------------------------------------- +uint16_t app_xran_get_num_rbs(uint32_t nNumerology, uint32_t nBandwidth, uint32_t nAbsFrePointA) +{ + uint32_t error = 1; + uint16_t numRBs = 0; + + if (nAbsFrePointA <= 6000000) + { + // F1 Tables 38.101-1 Table 5.3.2-1. Maximum transmission bandwidth configuration NRB + if (nNumerology < 3) + { + switch(nBandwidth) + { + case PHY_BW_5_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][0]; + error = 0; + break; + case PHY_BW_10_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][1]; + error = 0; + break; + case PHY_BW_15_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][2]; + error = 0; + break; + case PHY_BW_20_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][3]; + error = 0; + break; + case PHY_BW_25_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][4]; + error = 0; + break; + case PHY_BW_30_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][5]; + error = 0; + break; + case PHY_BW_40_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][6]; + error = 0; + break; + case PHY_BW_50_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][7]; + error = 0; + break; + case PHY_BW_60_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][8]; + error = 0; + break; + case PHY_BW_70_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][9]; + error = 0; + break; + case PHY_BW_80_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][10]; + error = 0; + break; + case PHY_BW_90_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][11]; + error = 0; + break; + case PHY_BW_100_0_MHZ: + numRBs = nNumRbsPerSymF1[nNumerology][12]; + error = 0; + break; + default: + error = 1; + break; + } + } + } + else + { + if ((nNumerology >= 2) && (nNumerology <= 3)) + { + // F2 Tables 38.101-2 Table 5.3.2-1. Maximum transmission bandwidth configuration NRB + switch(nBandwidth) + { + case PHY_BW_50_0_MHZ: + numRBs = nNumRbsPerSymF2[nNumerology-2][0]; + error = 0; + break; + case PHY_BW_100_0_MHZ: + numRBs = nNumRbsPerSymF2[nNumerology-2][1]; + error = 0; + break; + case PHY_BW_200_0_MHZ: + numRBs = nNumRbsPerSymF2[nNumerology-2][2]; + error = 0; + break; + case PHY_BW_400_0_MHZ: + numRBs = nNumRbsPerSymF2[nNumerology-2][3]; + error = 0; + break; + default: + error = 1; + break; + } + } + } + + + if (error) + { + printf("ERROR: %s: nNumerology[%d] nBandwidth[%d] nAbsFrePointA[%d]\n",__FUNCTION__, nNumerology, nBandwidth, nAbsFrePointA); + } + else + { + printf("%s: nNumerology[%d] nBandwidth[%d] nAbsFrePointA[%d] numRBs[%d]\n",__FUNCTION__, nNumerology, nBandwidth, nAbsFrePointA, numRBs); + } + + return numRBs; +} + +//------------------------------------------------------------------------------------------- +/** @ingroup phy_cal_nrarfcn + * + * @param[in] center frequency + * + * @return NR-ARFCN + * + * @description + * This calculates NR-ARFCN value according to center frequency + * +**/ +//------------------------------------------------------------------------------------------- +uint32_t app_xran_cal_nrarfcn(uint32_t nCenterFreq) +{ + uint32_t nDeltaFglobal,nFoffs,nNoffs; + uint32_t nNRARFCN = 0; + + if(nCenterFreq > 0 && nCenterFreq < 3000*1000) + { + nDeltaFglobal = 5; + nFoffs = 0; + nNoffs = 0; + } + else if(nCenterFreq >= 3000*1000 && nCenterFreq < 24250*1000) + { + nDeltaFglobal = 15; + nFoffs = 3000*1000; + nNoffs = 600000; + } + else if(nCenterFreq >= 24250*1000 && nCenterFreq <= 100000*1000) + { + nDeltaFglobal = 60; + nFoffs = 24250080; + nNoffs = 2016667; + } + else + { + printf("@@@@ incorrect center frerquency %d\n",nCenterFreq); + return (0); + } + + nNRARFCN = ((nCenterFreq - nFoffs)/nDeltaFglobal) + nNoffs; + + printf("%s: nCenterFreq[%d] nDeltaFglobal[%d] nFoffs[%d] nNoffs[%d] nNRARFCN[%d]\n", __FUNCTION__, nCenterFreq, nDeltaFglobal, nFoffs, nNoffs, nNRARFCN); + return (nNRARFCN); +} + +int32_t app_xran_slot_limit(int32_t nSfIdx) +{ + while (nSfIdx < 0) { + nSfIdx += gMaxSlotNum; + } + + while (nSfIdx >= gMaxSlotNum) { + nSfIdx -= gMaxSlotNum; + } + + return nSfIdx; +} + +void app_xran_clear_slot_type(uint32_t nPhyInstanceId) +{ + g_UlRate[nPhyInstanceId] = 0.0; + g_DlRate[nPhyInstanceId] = 0.0; + g_NumSlotTDDLoop[nPhyInstanceId] = 1; +} + +int32_t app_xran_set_slot_type(uint32_t nPhyInstanceId, uint32_t nFrameDuplexType, uint32_t nTddPeriod, struct xran_slot_config *psSlotConfig) +{ + uint32_t nSlotNum, nSymNum, nVal, i; + uint32_t numDlSym, numUlSym, numGuardSym; + uint32_t numDlSlots = 0, numUlSlots = 0, numSpDlSlots = 0, numSpUlSlots = 0, numSpSlots = 0; + char sSlotPattern[XRAN_SLOT_TYPE_LAST][10] = {"IN\0", "DL\0", "UL\0", "SP\0", "FD\0"}; + + // nPhyInstanceId Carrier ID + // nFrameDuplexType 0 = FDD 1 = TDD + // nTddPeriod Tdd Periodicity + // psSlotConfig[80] Slot Config Structure for nTddPeriod Slots + + g_UlRate[nPhyInstanceId] = 0.0; + g_DlRate[nPhyInstanceId] = 0.0; + g_NumSlotTDDLoop[nPhyInstanceId] = nTddPeriod; + + for (i = 0; i < XRAN_NUM_OF_SLOT_IN_TDD_LOOP; i++) + { + g_SlotType[nPhyInstanceId][i] = XRAN_SLOT_TYPE_INVALID; + g_NumDLSymSp[nPhyInstanceId][i] = 0; + g_NumULSymSp[nPhyInstanceId][i] = 0; + } + + if (nFrameDuplexType == XRAN_FDD) + { + for (i = 0; i < XRAN_NUM_OF_SLOT_IN_TDD_LOOP; i++) + { + g_SlotType[nPhyInstanceId][i] = XRAN_SLOT_TYPE_FDD; + } + g_NumSlotTDDLoop[nPhyInstanceId] = 1; + g_DlRate[nPhyInstanceId] = 1.0; + g_UlRate[nPhyInstanceId] = 1.0; + } + else + { + for (nSlotNum = 0; nSlotNum < nTddPeriod; nSlotNum++) + { + numDlSym = 0; + numUlSym = 0; + numGuardSym = 0; + for (nSymNum = 0; nSymNum < XRAN_NUM_OF_SYMBOL_PER_SLOT; nSymNum++) + { + switch(psSlotConfig[nSlotNum].nSymbolType[nSymNum]) + { + case XRAN_SYMBOL_TYPE_DL: + numDlSym++; + break; + case XRAN_SYMBOL_TYPE_GUARD: + numGuardSym++; + break; + default: + numUlSym++; + break; + } + } + + // printf("nSlotNum[%d] : numDlSym[%d] numGuardSym[%d] numUlSym[%d]\n", nSlotNum, numDlSym, numGuardSym, numUlSym); + + if ((numUlSym == 0) && (numGuardSym == 0)) + { + g_SlotType[nPhyInstanceId][nSlotNum] = XRAN_SLOT_TYPE_DL; + numDlSlots++; + } + else if ((numDlSym == 0) && (numGuardSym == 0)) + { + g_SlotType[nPhyInstanceId][nSlotNum] = XRAN_SLOT_TYPE_UL; + numUlSlots++; + } + else + { + g_SlotType[nPhyInstanceId][nSlotNum] = XRAN_SLOT_TYPE_SP; + numSpSlots++; + + if (numDlSym) + { + numSpDlSlots++; + g_NumDLSymSp[nPhyInstanceId][nSlotNum] = numDlSym; + } + if (numUlSym) + { + numSpUlSlots++; + g_NumULSymSp[nPhyInstanceId][nSlotNum] = numUlSym; + } + } + + // printf(" numDlSlots[%d] numUlSlots[%d] numSpSlots[%d] numSpDlSlots[%d] numSpUlSlots[%d]\n", numDlSlots, numUlSlots, numSpSlots, numSpDlSlots, numSpUlSlots); + } + + g_DlRate[nPhyInstanceId] = (float)(numDlSlots + numSpDlSlots) / (float)nTddPeriod; + g_UlRate[nPhyInstanceId] = (float)(numUlSlots + numSpUlSlots) / (float)nTddPeriod; + } + + printf("set_slot_type: nPhyInstanceId[%d] nFrameDuplexType[%d], nTddPeriod[%d]\n", + nPhyInstanceId, nFrameDuplexType, nTddPeriod); + + printf("DLRate[%f] ULRate[%f]\n", g_DlRate[nPhyInstanceId], g_UlRate[nPhyInstanceId]); + + nVal = (g_NumSlotTDDLoop[nPhyInstanceId] < 10) ? g_NumSlotTDDLoop[nPhyInstanceId] : 10; + + printf("SlotPattern:\n"); + printf("Slot: "); + for (nSlotNum = 0; nSlotNum < nVal; nSlotNum++) + { + printf("%d ", nSlotNum); + } + printf("\n"); + + printf(" %3d ", 0); + for (nSlotNum = 0, i = 0; nSlotNum < g_NumSlotTDDLoop[nPhyInstanceId]; nSlotNum++) + { + printf("%s ", sSlotPattern[g_SlotType[nPhyInstanceId][nSlotNum]]); + i++; + if ((i == 10) && ((nSlotNum+1) < g_NumSlotTDDLoop[nPhyInstanceId])) + { + printf("\n"); + printf(" %3d ", nSlotNum); + i = 0; + } + } + printf("\n\n"); + + return 0; +} + +int32_t app_xran_get_slot_type(int32_t nCellIdx, int32_t nSlotdx, int32_t nType) +{ + int32_t nSfIdxMod, nSfType, ret = 0; + + nSfIdxMod = app_xran_slot_limit(nSlotdx) % ((g_NumSlotTDDLoop[nCellIdx] > 0) ? g_NumSlotTDDLoop[nCellIdx]: 1); + nSfType = g_SlotType[nCellIdx][nSfIdxMod]; + + if (nSfType == nType) + { + ret = 1; + } + else if (nSfType == XRAN_SLOT_TYPE_SP) + { + if ((nType == XRAN_SLOT_TYPE_DL) && g_NumDLSymSp[nCellIdx][nSfIdxMod]) + { + ret = 1; + } + + if ((nType == XRAN_SLOT_TYPE_UL) && g_NumULSymSp[nCellIdx][nSfIdxMod]) + { + ret = 1; + } + } + else if (nSfType == XRAN_SLOT_TYPE_FDD) + { + ret = 1; + } + + return ret; +} + + + +void sys_save_buf_to_file(char *filename, char *bufname, unsigned char *pBuffer, unsigned int size, unsigned int buffers_num) +{ + if (size) + { + if (filename && bufname) + { + FILE *file; + printf("Storing %s to file %s: ", bufname, filename); + file = fopen(filename, "wb"); + if (file == NULL) + { + printf("can't open file %s!!!", filename); + } + else + { + uint32_t num; + num = fwrite(pBuffer, buffers_num, size, file); + fflush(file); + fclose(file); + printf("from addr (0x%lx) size (%d) bytes num (%d)", (uint64_t)pBuffer, size, num); + } + printf(" \n"); + } + else + { + printf(" the file name, buffer name are not set!!!"); + } + } + else + { + printf(" the %s is free: size = %d bytes!!!", bufname, size); + } +} + +int sys_load_file_to_buff(char *filename, char *bufname, unsigned char *pBuffer, unsigned int size, unsigned int buffers_num) +{ + unsigned int file_size = 0; + int num= 0; + + if (size) + { + if (filename && bufname) + { + FILE *file; + printf("Loading file %s to %s: ", filename, bufname); + file = fopen(filename, "rb"); + + + if (file == NULL) + { + printf("can't open file %s!!!", filename); + exit(-1); + } + else + { + fseek(file, 0, SEEK_END); + file_size = ftell(file); + fseek(file, 0, SEEK_SET); + + if ((file_size > size) || (file_size == 0)) + file_size = size; + + printf("Reading IQ samples from file: File Size: %d [Buffer Size: %d]\n", file_size, size); + + num = fread(pBuffer, buffers_num, size, file); + fflush(file); + fclose(file); + printf("from addr (0x%lx) size (%d) bytes num (%d)", (uint64_t)pBuffer, file_size, num); + } + printf(" \n"); + + } + else + { + printf(" the file name, buffer name are not set!!!"); + } + } + else + { + printf(" the %s is free: size = %d bytes!!!", bufname, size); + } + return num; +} + + +void sys_save_buf_to_file_txt(char *filename, char *bufname, unsigned char *pBuffer, unsigned int size, unsigned int buffers_num) +{ + unsigned int i; + int ret = 0; + if (pBuffer == NULL) + return; + + if (size) + { + if (filename && bufname) + { + FILE *file; + printf("Storing %s to file %s: ", bufname, filename); + file = fopen(filename, "w"); + if (file == NULL) + { + printf("can't open file %s!!!", filename); + exit(-1); + } + else + { + uint32_t num = 0; + + signed short *ptr = (signed short*)pBuffer; + for (i = 0; i < (size/((unsigned int)sizeof(signed short) /** 2 * 2 * 2*/)); i = i + 2) + { +#ifndef CSCOPE_DEBUG + ret = fprintf(file,"%d %d\n", ptr[i], ptr[i + 1]); +#else + ret = fprintf(file,"%d %d ", ptr[i], ptr[i + 1]); + /* I data => Ramp data, from 1 to 792. + Q data => Contains time information of the current symbol: + Bits [15:14] = Antenna-ID + Bits [13:12] = “00” + Bits [11:8] = Subframe-ID + Bits [7:4] = Slot-ID + Bits [3:0] = Symbol-ID */ + fprintf(file, "0x%04x: ant %d Subframe-ID %d Slot-ID %d Symbol-ID %d\n", + ptr[i + 1], (ptr[i + 1]>>14) & 0x3, (ptr[i + 1]>>8) & 0xF, (ptr[i + 1]>>4) & 0xF, (ptr[i + 1]>>0) & 0xF); +#endif + if (ret < 0) + { + printf("fprintf %d\n", ret); + fclose(file); + break; + } + num++; + } + fflush(file); + fclose(file); + printf("from addr (0x%lx) size (%d) IQ num (%d)", (uint64_t)pBuffer, size, num); + } + printf(" \n"); + } + else + { + printf(" the file name, buffer name are not set!!!"); + } + } + else + { + printf(" the %s is free: size = %d bytes!!!", bufname, size); + } +} +