-
Aikaterini authoredAikaterini authored
lms_lib.cpp 23.88 KiB
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface 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.
OpenAirInterface 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/ether.h>
#include <unistd.h>
#include <errno.h>
#include "common_lib.h"
#include "LMS_SDR.h"
#include "LMS7002M.h"
#include "Si5351C.h"
#include "LMS_StreamBoard.h"
#include "LMS7002M_RegistersMap.h"
#include <cmath>
///define for parameter enumeration if prefix might be needed
#define LMS7param(id) id
LMScomms* usbport;
LMScomms* comport;
LMS7002M* lms7;
Si5351C* Si;
LMS_StreamBoard *lmsStream;
#define RXDCLENGTH 4096
#define NUMBUFF 40
int16_t cos_fsover8[8] = {2047, 1447, 0, -1448, -2047, -1448, 0, 1447};
int16_t cos_3fsover8[8] = {2047, -1448, 0, 1447, -2047, 1447, 0, -1448};
extern "C"
{
int write_output(const char *fname,const char *vname,void *data,int length,int dec,char format);
}
int trx_lms_write(openair0_device *device, openair0_timestamp timestamp, void **buff, int nsamps, int antenna_id, int flags) {
LMS_TRxWrite((int16_t*)buff[0], nsamps,0, timestamp);
return nsamps;
}
int trx_lms_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int antenna_id) {
uint64_t timestamp;
int16_t *dst_ptr = (int16_t*) buff[0];
int ret;
ret = LMS_TRxRead(dst_ptr, nsamps,0,×tamp, 100);
*ptimestamp=timestamp;
return ret;
}
void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index) {
int i=0;
// loop through calibration table to find best adjustment factor for RX frequency
double min_diff = 6e9,diff;
while (openair0_cfg->rx_gain_calib_table[i].freq>0) {
diff = fabs(openair0_cfg->rx_freq[chain_index] - openair0_cfg->rx_gain_calib_table[i].freq);
printf("cal %d: freq %f, offset %f, diff %f\n",
i,
openair0_cfg->rx_gain_calib_table[i].freq,
openair0_cfg->rx_gain_calib_table[i].offset,diff);
if (min_diff > diff) {
min_diff = diff;
openair0_cfg->rx_gain_offset[chain_index] = openair0_cfg->rx_gain_calib_table[i].offset;
}
i++;
}
}
/*
void calibrate_rf(openair0_device *device) {
openair0_timestamp ptimestamp;
int16_t *calib_buffp,*calib_tx_buffp;
int16_t calib_buff[2*RXDCLENGTH];
int16_t calib_tx_buff[2*RXDCLENGTH];
int i,j;
int8_t offI,offQ,offIold,offQold,offInew,offQnew,offphase,offphaseold,offphasenew,offgain,offgainold,offgainnew;
int32_t meanI,meanQ,meanIold,meanQold;
int cnt=0,loop;
liblms7_status opStatus;
int16_t dcoffi;
int16_t dcoffq;
int16_t dccorri;
int16_t dccorrq;
const int16_t firCoefs[] =
{
-2531,
-517,
2708,
188,
-3059,
216,
3569,
-770,
-4199,
1541,
4886,
-2577,
-5552, 3909,
6108,
-5537,
-6457,
7440,
6507,
-9566,
-6174,
11845,
5391,
-14179,
-4110,
16457,
2310,
-18561,
0,
20369,
-2780,
-21752,
5963,
22610,
-9456,
-22859,
13127,
22444,
-16854,
-21319,
20489,
19492,
-23883,
-17002,
26881,
13902,
-29372,
-10313,
31226,
6345,
-32380,
-2141,
32767,
-2141,
-32380,
6345,
31226,
-10313,
-29372,
13902,
26881,
-17002,
-23883,
19492,
20489,
-21319,
-16854,
22444,
13127,
-22859,
-9456,
22610,
5963,
-21752,
-2780,
20369,
0,
-18561,
2310,
16457,
-4110,
-14179,
5391, 11845,
-6174,
-9566,
6507,
7440,
-6457,
-5537,
6108,
3909,
-5552,
-2577,
4886,
1541,
-4199,
-770,
3569,
216,
-3059,
188,
2708,
-517,
-2531
};
j=0;
for (i=0;i<RXDCLENGTH;i++) {
calib_tx_buff[j++] = cos_fsover8[i&7];
calib_tx_buff[j++] = cos_fsover8[(i+6)&7]; // sin
}
calib_buffp = &calib_buff[0];
calib_tx_buffp = &calib_tx_buff[0];
lms7->BackupAllRegisters();
uint8_t ch = (uint8_t)lms7->Get_SPI_Reg_bits(LMS7param(MAC));
//Stage 1
uint8_t sel_band1_trf = (uint8_t)lms7->Get_SPI_Reg_bits(LMS7param(SEL_BAND1_TRF));
uint8_t sel_band2_trf = (uint8_t)lms7->Get_SPI_Reg_bits(LMS7param(SEL_BAND2_TRF));
{
uint16_t requiredRegs[] = { 0x0400, 0x040A, 0x010D, 0x040C };
uint16_t requiredMask[] = { 0x6000, 0x3007, 0x0040, 0x00FF }; //CAPSEL, AGC_MODE, AGC_AVG, EN_DCOFF, Bypasses
uint16_t requiredValue[] = { 0x0000, 0x1007, 0x0040, 0x00BD };
lms7->Modify_SPI_Reg_mask(requiredRegs, requiredMask, requiredValue, 0, 3);
}
// opStatus = lms7->SetFrequencySX(LMS7002M::Rx, device->openair0_cfg[0].tx_freq[0]/1e6,30.72);
// put TX on fs/4
opStatus = lms7->CalibrateRxSetup(device->openair0_cfg[0].sample_rate/1e6);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot calibrate for %f MHz\n",device->openair0_cfg[0].sample_rate/1e6);
exit(-1);
}
// fill TX buffer with fs/8 complex sinusoid
offIold=offQold=64;
lms7->SetRxDCOFF(offIold,offQold);
LMS_RxStart();
for (i=0;i<NUMBUFF;i++)
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
for (meanIold=meanQold=i=j=0;i<RXDCLENGTH;i++) {
meanIold+=calib_buff[j++];
meanQold+=calib_buff[j++];
}
meanIold/=RXDCLENGTH;
meanQold/=RXDCLENGTH;
printf("[LMS] RX DC: (%d,%d) => (%d,%d)\n",offIold,offQold,meanIold,meanQold);
offI=offQ=-64;
lms7->SetRxDCOFF(offI,offQ);
for (i=0;i<NUMBUFF;i++)
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
meanI+=calib_buff[j++];
meanQ+=calib_buff[j++];
}
meanI/=RXDCLENGTH;
meanQ/=RXDCLENGTH;
printf("[LMS] RX DC: (%d,%d) => (%d,%d)\n",offI,offQ,meanI,meanQ);
while (cnt++ < 7) {
offInew=(offIold+offI)>>1;
offQnew=(offQold+offQ)>>1;
if (meanI*meanI < meanIold*meanIold) {
meanIold = meanI;
offIold = offI;
printf("[LMS] *** RX DC: offI %d => %d\n",offIold,meanI);
}
if (meanQ*meanQ < meanQold*meanQold) {
meanQold = meanQ;
offQold = offQ;
printf("[LMS] *** RX DC: offQ %d => %d\n",offQold,meanQ);
}
offI = offInew;
offQ = offQnew;
lms7->SetRxDCOFF(offI,offQ);
for (i=0;i<NUMBUFF;i++)
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
meanI+=calib_buff[j++];
meanQ+=calib_buff[j++];
}
meanI/=RXDCLENGTH;
meanQ/=RXDCLENGTH;
printf("[LMS] RX DC: (%d,%d) => (%d,%d)\n",offI,offQ,meanI,meanQ);
}
if (meanI*meanI < meanIold*meanIold) {
meanIold = meanI;
offIold = offI;
printf("[LMS] *** RX DC: offI %d => %d\n",offIold,meanI);
}
if (meanQ*meanQ < meanQold*meanQold) {
meanQold = meanQ;
offQold = offQ;
printf("[LMS] *** RX DC: offQ %d => %d\n",offQold,meanQ);
}
printf("[LMS] RX DC: (%d,%d) => (%d,%d)\n",offIold,offQold,meanIold,meanQold);
lms7->SetRxDCOFF(offIold,offQold);
dcoffi = offIold;
dcoffq = offQold;
lms7->Modify_SPI_Reg_bits(LMS7param(MAC), ch);
lms7->Modify_SPI_Reg_bits(LMS7param(AGC_MODE_RXTSP), 1);
lms7->Modify_SPI_Reg_bits(LMS7param(CAPSEL), 0);
// TX LO leakage
offQold=offIold=127;
lms7->SPI_write(0x0204,(((int16_t)offIold)<<7)|offQold);
{ uint16_t requiredRegs[] = { 0x0400, 0x040A, 0x010D, 0x040C };
uint16_t requiredMask[] = { 0x6000, 0x3007, 0x0040, 0x00FF }; //CAPSEL, AGC_MODE, AGC_AVG, EN_DCOFF, Bypasses
uint16_t requiredValue[] = { 0x0000, 0x1007, 0x0040, 0x00BD };
lms7->Modify_SPI_Reg_mask(requiredRegs, requiredMask, requiredValue, 0, 3);
}
sel_band1_trf = (uint8_t)lms7->Get_SPI_Reg_bits(LMS7param(SEL_BAND1_TRF));
sel_band2_trf = (uint8_t)lms7->Get_SPI_Reg_bits(LMS7param(SEL_BAND2_TRF));
//B
lms7->Modify_SPI_Reg_bits(0x0100, 0, 0, 1); //EN_G_TRF 1
if (sel_band1_trf == 1)
{
lms7->Modify_SPI_Reg_bits(LMS7param(PD_RLOOPB_1_RFE), 0); //PD_RLOOPB_1_RFE 0
lms7->Modify_SPI_Reg_bits(LMS7param(EN_INSHSW_LB1_RFE), 0); //EN_INSHSW_LB1 0
}
if (sel_band2_trf == 1)
{
lms7->Modify_SPI_Reg_bits(LMS7param(PD_RLOOPB_2_RFE), 0); //PD_RLOOPB_2_RFE 0
lms7->Modify_SPI_Reg_bits(LMS7param(EN_INSHSW_LB2_RFE), 0); // EN_INSHSW_LB2 0
}
// FixRXSaturation();
lms7->Modify_SPI_Reg_bits(LMS7param(GFIR3_BYP_RXTSP), 0); //GFIR3_BYP 0
lms7->Modify_SPI_Reg_bits(LMS7param(HBD_OVR_RXTSP), 2);
lms7->Modify_SPI_Reg_bits(LMS7param(GFIR3_L_RXTSP), 7);
lms7->Modify_SPI_Reg_bits(LMS7param(GFIR3_N_RXTSP), 7);
lms7->SetGFIRCoefficients(LMS7002M::Rx, 2, firCoefs, sizeof(firCoefs) / sizeof(int16_t));
for (i=0;i<NUMBUFF;i++) {
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
trx_lms_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0);
}
write_output("calibrx.m","rxs",calib_buffp,RXDCLENGTH,1,1);
exit(-1);
for (meanIold=meanQold=i=j=0;i<RXDCLENGTH;i++) {
switch (i&3) {
case 0:
meanIold+=calib_buff[j++];
break;
case 1:
meanQold+=calib_buff[j++];
break;
case 2:
meanIold-=calib_buff[j++];
break;
case 3:
meanQold-=calib_buff[j++];
break;
}
}
// meanIold/=RXDCLENGTH;
// meanQold/=RXDCLENGTH;
printf("[LMS] TX DC (offI): %d => (%d,%d)\n",offIold,meanIold,meanQold);
offI=-128;
lms7->SPI_write(0x0204,(((int16_t)offI)<<7)|offQold);
for (i=0;i<NUMBUFF;i++) {
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
trx_lms_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0);
}
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
switch (i&3) {
case 0:
meanI+=calib_buff[j++];
break;
case 1: meanQ+=calib_buff[j++];
break;
case 2:
meanI-=calib_buff[j++];
break;
case 3:
meanQ-=calib_buff[j++];
break;
}
}
// meanI/=RXDCLENGTH;
// meanQ/=RXDCLENGTH;
printf("[LMS] TX DC (offI): %d => (%d,%d)\n",offI,meanI,meanQ);
cnt = 0;
while (cnt++ < 8) {
offInew=(offIold+offI)>>1;
if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) {
printf("[LMS] TX DC (offI): ([%d,%d]) => %d : %d\n",offIold,offI,offInew,meanI*meanI+meanQ*meanQ);
meanIold = meanI;
meanQold = meanQ;
offIold = offI;
}
offI = offInew;
lms7->SPI_write(0x0204,(((int16_t)offI)<<7)|offQold);
for (i=0;i<NUMBUFF;i++) {
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
trx_lms_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0);
}
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
switch (i&3) {
case 0:
meanI+=calib_buff[j++];
break;
case 1:
meanQ+=calib_buff[j++];
break;
case 2:
meanI-=calib_buff[j++];
break;
case 3:
meanQ-=calib_buff[j++];
break;
}
}
// meanI/=RXDCLENGTH;
// meanQ/=RXDCLENGTH;
// printf("[LMS] TX DC (offI): %d => (%d,%d)\n",offI,meanI,meanQ);
}
if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) {
printf("[LMS] TX DC (offI): ([%d,%d]) => %d : %d\n",offIold,offI,offInew,meanI*meanI+meanQ*meanQ);
meanIold = meanI;
meanQold = meanQ;
offIold = offI;
}
offQ=-128;
lms7->SPI_write(0x0204,(((int16_t)offIold)<<7)|offQ);
for (i=0;i<NUMBUFF;i++) {
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
trx_lms_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0);
}
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
switch (i&3) {
case 0: meanI+=calib_buff[j++];
break;
case 1:
meanQ+=calib_buff[j++];
break;
case 2:
meanI-=calib_buff[j++];
break;
case 3:
meanQ-=calib_buff[j++];
break;
}
}
// meanI/=RXDCLENGTH;
// meanQ/=RXDCLENGTH;
printf("[LMS] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ);
cnt=0;
while (cnt++ < 8) {
offQnew=(offQold+offQ)>>1;
if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) {
printf("[LMS] TX DC (offQ): ([%d,%d]) => %d : %d\n",offQold,offQ,offQnew,meanI*meanI+meanQ*meanQ);
meanIold = meanI;
meanQold = meanQ;
offQold = offQ;
}
offQ = offQnew;
lms7->SPI_write(0x0204,(((int16_t)offIold)<<7)|offQ);
for (i=0;i<NUMBUFF;i++) {
trx_lms_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0);
trx_lms_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0);
}
for (meanI=meanQ=i=j=0;i<RXDCLENGTH;i++) {
switch (i&3) {
case 0:
meanI+=calib_buff[j++];
break;
case 1:
meanQ+=calib_buff[j++];
break;
case 2:
meanI-=calib_buff[j++];
break;
case 3:
meanQ-=calib_buff[j++];
break;
}
}
// meanI/=RXDCLENGTH;
// meanQ/=RXDCLENGTH;
// printf("[LMS] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ);
}
LMS_RxStop();
printf("[LMS] TX DC: (%d,%d) => (%d,%d)\n",offIold,offQold,meanIold,meanQold);
dccorri = offIold;
dccorrq = offQold;
lms7->RestoreAllRegisters();
lms7->Modify_SPI_Reg_bits(LMS7param(MAC), ch);
lms7->Modify_SPI_Reg_bits(LMS7param(DCOFFI_RFE), dcoffi); lms7->Modify_SPI_Reg_bits(LMS7param(DCOFFQ_RFE), dcoffq);
lms7->Modify_SPI_Reg_bits(LMS7param(DCCORRI_TXTSP), dccorri);
lms7->Modify_SPI_Reg_bits(LMS7param(DCCORRQ_TXTSP), dccorrq);
// lms7->Modify_SPI_Reg_bits(LMS7param(GCORRI_TXTSP), gcorri);
// lms7->Modify_SPI_Reg_bits(LMS7param(GCORRQ_TXTSP), gcorrq);
// lms7->Modify_SPI_Reg_bits(LMS7param(IQCORR_TXTSP), iqcorr);
// lms7->Modify_SPI_Reg_bits(LMS7param(DC_BYP_TXTSP), 0); //DC_BYP
lms7->Modify_SPI_Reg_bits(0x0208, 1, 0, 0); //GC_BYP PH_BYP
}
*/
int trx_lms_set_gains(openair0_device* device, openair0_config_t *openair0_cfg) {
double gv = openair0_cfg[0].rx_gain[0] - openair0_cfg[0].rx_gain_offset[0];
if (gv > 31) {
printf("RX Gain 0 too high, reduce by %f dB\n",gv-31);
gv = 31;
}
if (gv < 0) {
printf("RX Gain 0 too low, increase by %f dB\n",-gv);
gv = 0;
}
printf("[LMS] Setting 7002M G_PGA_RBB to %d\n", (int16_t)gv);
lms7->Modify_SPI_Reg_bits(LMS7param(G_PGA_RBB),(int16_t)gv);
return(0);
}
int trx_lms_start(openair0_device *device){
LMS_Init(0, 128*1024);
usbport = LMS_GetUSBPort();
//connect data stream port
LMS_UpdateDeviceList(usbport);
const char *name = LMS_GetDeviceName(usbport, 0);
printf("Connecting to device: %s\n",name);
if (LMS_DeviceOpen(usbport, 0)==0)
{
Si = new Si5351C();
lms7 = new LMS7002M(usbport);
liblms7_status opStatus;
printf("Configuring Si5351C\n");
Si->Initialize(usbport);
Si->SetPLL(0, 25000000, 0);
Si->SetPLL(1, 25000000, 0);
Si->SetClock(0, 27000000, true, false);
Si->SetClock(1, 27000000, true, false);
for (int i = 2; i < 8; ++i)
Si->SetClock(i, 27000000, false, false);
Si5351C::Status status = Si->ConfigureClocks();
if (status != Si5351C::SUCCESS)
{
printf("Failed to configure Si5351C");
exit(-1);
}
status = Si->UploadConfiguration();
if (status != Si5351C::SUCCESS)
printf("Failed to upload Si5351C configuration");
lms7->ResetChip();
opStatus = lms7->LoadConfig(device->openair0_cfg[0].configFilename);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Failed to load configuration file %s\n",device->openair0_cfg[0].configFilename);
exit(-1);
}
opStatus = lms7->UploadAll();
if (opStatus != LIBLMS7_SUCCESS) {
printf("Failed to upload configuration file\n");
exit(-1);
}
// Set TX filter
printf("Tuning TX filter\n");
opStatus = lms7->TuneTxFilter(LMS7002M::TxFilter::TX_HIGHBAND,device->openair0_cfg[0].tx_bw/1e6);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Warning: Could not tune TX filter to %f MHz\n",device->openair0_cfg[0].tx_bw/1e6);
}
printf("Tuning RX filter\n");
opStatus = lms7->TuneRxFilter(LMS7002M::RxFilter::RX_LPF_LOWBAND,device->openair0_cfg[0].rx_bw/1e6);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Warning: Could not tune RX filter to %f MHz\n",device->openair0_cfg[0].rx_bw/1e6);
}
/* printf("Tuning TIA filter\n");
opStatus = lms7->TuneRxFilter(LMS7002M::RxFilter::RX_TIA,7.0);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Warning: Could not tune RX TIA filter\n");
}*/
opStatus = lms7->SetInterfaceFrequency(lms7->GetFrequencyCGEN_MHz(),
lms7->Get_SPI_Reg_bits(HBI_OVR_TXTSP),
lms7->Get_SPI_Reg_bits(HBD_OVR_RXTSP));
if (opStatus != LIBLMS7_SUCCESS) {
printf("SetInterfaceFrequency failed: %f,%d,%d\n",
lms7->GetFrequencyCGEN_MHz(),
lms7->Get_SPI_Reg_bits(HBI_OVR_TXTSP),
lms7->Get_SPI_Reg_bits(HBD_OVR_RXTSP));
}
else {
printf("SetInterfaceFrequency as %f,%d,%d\n",
lms7->GetFrequencyCGEN_MHz(),
lms7->Get_SPI_Reg_bits(HBI_OVR_TXTSP),
lms7->Get_SPI_Reg_bits(HBD_OVR_RXTSP));
}
lmsStream = new LMS_StreamBoard(usbport);
LMS_StreamBoard::Status opStreamStatus;
// this will configure that sampling rate at output of FPGA
opStreamStatus = lmsStream->ConfigurePLL(usbport,
device->openair0_cfg[0].sample_rate,
device->openair0_cfg[0].sample_rate,90);
if (opStatus != LIBLMS7_SUCCESS){
printf("Sample rate programming failed\n");
exit(-1);
}
opStatus = lms7->SetFrequencySX(LMS7002M::Tx, device->openair0_cfg[0].tx_freq[0]/1e6,30.72);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot set TX frequency %f MHz\n",device->openair0_cfg[0].tx_freq[0]/1e6);
exit(-1);
} else {
printf("Set TX frequency %f MHz\n",device->openair0_cfg[0].tx_freq[0]/1e6);
}
opStatus = lms7->SetFrequencySX(LMS7002M::Rx, device->openair0_cfg[0].rx_freq[0]/1e6,30.72);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot set RX frequency %f MHz\n",device->openair0_cfg[0].rx_freq[0]/1e6);
exit(-1);
}
else {
printf("Set RX frequency %f MHz\n",device->openair0_cfg[0].rx_freq[0]/1e6);
}
trx_lms_set_gains(device, device->openair0_cfg);
// Run calibration procedure
// calibrate_rf(device);
//lms7->CalibrateTx(5.0);
LMS_RxStart();
}
else
{
return(-1);
}
//connect control port
/* comport = LMS_GetCOMPort();
LMS_UpdateDeviceList(comport);
name = LMS_GetDeviceName(comport, 0);
if (*name == 0)
comport = usbport; //attempt to use data port
else
{
printf("Connecting to device: %s\n",name);
if (LMS_DeviceOpen(comport, 0)!=0)
return (-1);
}
lms7 = new LMS7002M(comport);
if( access( "./config.ini", F_OK ) != -1 ) //load config file
lms7->LoadConfig("./config.ini");
//calibration takes too long
//lms7->CalibrateRx(5.0);
//lms7->CalibrateTx(5.0);
*/
return 0;
}
int trx_lms_stop(int card) {
/*
LMS_DeviceClose(usbport);
LMS_DeviceClose(comport);
delete lms7;
return LMS_Destroy();
*/
}
int trx_lms_set_freq(openair0_device* device, openair0_config_t *openair0_cfg,int exmimo_dump_config) {
//Control port must be connected
lms7->SetFrequencySX(LMS7002M::Tx,openair0_cfg->tx_freq[0]/1e6,30.72);
lms7->SetFrequencySX(LMS7002M::Rx,openair0_cfg->rx_freq[0]/1e6,30.72);
printf ("[LMS] rx frequency:%f;\n",openair0_cfg->rx_freq[0]/1e6);
set_rx_gain_offset(openair0_cfg,0);
return(0);
}
// 31 = 19 dB => 105 dB total gain @ 2.6 GHzrx_gain_calib_table_t calib_table_sodera[] = {
{3500000000.0,70.0},
{2660000000.0,80.0},
{2300000000.0,80.0},
{1880000000.0,74.0}, // on W PAD
{816000000.0,76.0}, // on W PAD
{-1,0}};
int trx_lms_get_stats(openair0_device* device) {
return(0);
}
int trx_lms_reset_stats(openair0_device* device) {
return(0);
}
int openair0_set_gains(openair0_device* device,
openair0_config_t *openair0_cfg) {
return(0);
}
int openair0_set_frequencies(openair0_device* device, openair0_config_t *openair0_cfg, int dummy) {
return(0);
}
void trx_lms_end(openair0_device *device) {
}
extern "C" {
/*! \brief Initialize Openair LMSSDR target. It returns 0 if OK
* \param device the hardware to use
* \param openair0_cfg RF frontend parameters set by application
*/
int device_init(openair0_device *device, openair0_config_t *openair0_cfg){
device->type=LMSSDR_DEV;
printf("LMSSDR: Initializing openair0_device for %s ...\n", ((device->host_type == BBU_HOST) ? "BBU": "RRH"));
switch ((int)openair0_cfg[0].sample_rate) {
case 30720000:
// from usrp_time_offset
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 15;
openair0_cfg[0].tx_bw = 30.72e6;
openair0_cfg[0].rx_bw = 30.72e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
case 15360000:
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 45;
openair0_cfg[0].tx_bw = 28e6;
openair0_cfg[0].rx_bw = 10e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break; case 7680000:
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 70;
openair0_cfg[0].tx_bw = 28e6;
openair0_cfg[0].rx_bw = 5.0e6;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 1920000:
openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 50;
openair0_cfg[0].tx_bw = 1.25e6;
openair0_cfg[0].rx_bw = 1.25e6;
openair0_cfg[0].tx_scheduling_advance = 8*openair0_cfg[0].samples_per_packet;
break;
default:
printf("Error: unknown sampling rate %f\n",openair0_cfg[0].sample_rate);
exit(-1);
break;
}
openair0_cfg[0].rx_gain_calib_table = calib_table_sodera;
set_rx_gain_offset(openair0_cfg,0);
device->Mod_id = 1;
device->trx_start_func = trx_lms_start;
device->trx_write_func = trx_lms_write;
device->trx_read_func = trx_lms_read;
device->trx_get_stats_func = trx_lms_get_stats;
device->trx_reset_stats_func = trx_lms_reset_stats;
device->trx_end_func = trx_lms_end;
device->trx_stop_func = trx_lms_stop;
device->trx_set_freq_func = trx_lms_set_freq;
device->trx_set_gains_func = trx_lms_set_gains;
device->openair0_cfg = openair0_cfg;
return 0;
}
}