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moving targets/ARCH to sdr/

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This commit is contained in:
francescomani
2022-09-26 11:17:44 +02:00
parent bb396052a2
commit 539563f03e
92 changed files with 123 additions and 131 deletions
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sdr/LMSSDR/USERSPACE/LIB/lms_lib.cpp
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#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 <cmath>
/** @addtogroup _LMSSDR_PHY_RF_INTERFACE_
* @{
*/
#include <lime/LimeSuite.h>
#include <lime/LMS7002M.h>
#include <lime/LMS7002M_RegistersMap.h>
#include "common_lib.h"
lms_device_t* lms_device;
lms_stream_t rx_stream;
lms_stream_t tx_stream;
/* We have a strange behavior when we just start reading
* from the device (inconsistent values of the timestamp).
* A quick solution is to discard the very first read packet
* after a "start".
* The following global variable "first_rx" serves that purpose.
*/
static int first_rx = 0;
#define RXDCLENGTH 4096
#define NUMBUFF 32
using namespace lime;
extern "C"
{
int write_output(const char *fname,const char *vname,void *data,int length,int dec,char format);
}
/*! \brief Called to send samples to the LMSSDR RF target
\param device pointer to the device structure specific to the RF hardware target
\param timestamp The timestamp at whicch the first sample MUST be sent
\param buff Buffer which holds the samples
\param nsamps number of samples to be sent
\param antenna_id index of the antenna
\param flags Ignored for the moment
\returns 0 on success
*/
int trx_lms_write(openair0_device *device, openair0_timestamp timestamp, void **buff, int nsamps, int antenna_id, int flags) {
lms_stream_meta_t meta;
meta.waitForTimestamp = true;
meta.flushPartialPacket = false;
meta.timestamp = timestamp;
return LMS_SendStream(&tx_stream,(const void*)buff[0],nsamps,&meta,30);
}
/*! \brief Receive samples from hardware.
* Read \ref nsamps samples from each channel to buffers. buff[0] is the array for
* the first channel. *ptimestamp is the time at which the first sample
* was received.
* \param device the hardware to use
* \param[out] ptimestamp the time at which the first sample was received.
* \param[out] buff An array of pointers to buffers for received samples. The buffers must be large enough to hold the number of samples \ref nsamps.
* \param nsamps Number of samples. One sample is 2 byte I + 2 byte Q => 4 byte.
* \param antenna_id Index of antenna port
* \returns number of samples read
*/
int trx_lms_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int antenna_id) {
lms_stream_meta_t meta;
meta.waitForTimestamp = false;
meta.flushPartialPacket = false;
int ret;
if (first_rx == 1) {
first_rx = 0;
ret = LMS_RecvStream(&rx_stream,buff[0],nsamps,&meta,50);
}
ret = LMS_RecvStream(&rx_stream,buff[0],nsamps,&meta,50);
*ptimestamp = meta.timestamp;
return ret;
}
/*! \brief set RX gain offset from calibration table
* \param openair0_cfg RF frontend parameters set by application
* \param chain_index RF chain ID
*/
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++;
}
}
/*! \brief Set Gains (TX/RX) on LMSSDR
* \param device the hardware to use
* \param openair0_cfg openair0 Config structure
* \returns 0 in success, -1 on error
*/
int trx_lms_set_gains(openair0_device* device, openair0_config_t *openair0_cfg) {
int ret = 0;
if (openair0_cfg->rx_gain[0] > 70+openair0_cfg->rx_gain_offset[0]) {
printf("[LMS] Reduce RX Gain 0 by %f dB\n",openair0_cfg->rx_gain[0]-openair0_cfg->rx_gain_offset[0]-70);
ret = -1;
}
LMS_SetGaindB(lms_device, LMS_CH_TX, 0, openair0_cfg->tx_gain[0]);
LMS_SetGaindB(lms_device, LMS_CH_RX, 0, openair0_cfg->rx_gain[0]-openair0_cfg->rx_gain_offset[0]);
return(ret);
}
/*! \brief Start LMSSDR
* \param device the hardware to use
* \returns 0 on success
*/
int trx_lms_start(openair0_device *device){
lms_info_str_t list[16]={0};
int n= LMS_GetDeviceList(list);
if (n <= 0) {
fprintf(stderr, "No LimeSDR board found: %s\n", n < 0?LMS_GetLastErrorMessage():"");
return -1;
}
printf("Connecting to device: %s\n",list[0]);
if (LMS_Open(&lms_device,list[0],NULL)<0) {
fprintf(stderr, "Can't open device port: %s\n",LMS_GetLastErrorMessage());
return -1;
}
LMS_Init(lms_device);
LMS_EnableCache(lms_device,false);
if (LMS_LoadConfig(lms_device,device->openair0_cfg[0].configFilename) != 0)
{
printf("Failed to load configuration file %s\n%s",device->openair0_cfg[0].configFilename,LMS_GetLastErrorMessage());
exit(-1);
}
/* LMS_EnableChannel(lms_device,LMS_CH_RX,0,true);
LMS_EnableChannel(lms_device,LMS_CH_TX,0,true);
if (device->openair0_cfg->rx_num_channels == 2)
{
LMS_EnableChannel(lms_device,LMS_CH_RX,1,true);
LMS_EnableChannel(lms_device,LMS_CH_TX,1,true);
} */
LMS_VCTCXOWrite(lms_device, 129);
if (LMS_SetSampleRate(lms_device,device->openair0_cfg->sample_rate,2)!=0)
{
fprintf(stderr, "Failed to set sample rate %s\n",LMS_GetLastErrorMessage());
return -1;
}
printf("Set sample rate %f MHz\n",device->openair0_cfg->sample_rate/1e6);
if (LMS_SetLOFrequency(lms_device,LMS_CH_RX, 0, device->openair0_cfg[0].rx_freq[0])!=0)
{
fprintf(stderr, "Failed to Set Rx frequency: %s\n", LMS_GetLastErrorMessage());
return -1;
}
if (LMS_SetLOFrequency(lms_device,LMS_CH_TX, 0,device->openair0_cfg[0].tx_freq[0])!=0)
{
fprintf(stderr, "Failed to Set Tx frequency: %s\n", LMS_GetLastErrorMessage());
return -1;
}
printf("Set TX frequency %f MHz\n",device->openair0_cfg[0].tx_freq[0]/1e6);
/*
printf("Override antenna settings to: RX1_H, TXA_2");
LMS_SetAntenna(lms_device, LMS_CH_RX, 0, 1);
LMS_SetAntenna(lms_device, LMS_CH_TX, 0, 2);
*/
for (int i = 0; i< device->openair0_cfg->rx_num_channels; i++)
{
if (LMS_SetLPFBW(lms_device,LMS_CH_RX,i,device->openair0_cfg->rx_bw)!=0)
printf("RX ch:%d filter calibration failed, bw:%fMHz\n%s\n",i,device->openair0_cfg->rx_bw/1e6,LMS_GetLastErrorMessage());
if (LMS_SetLPFBW(lms_device,LMS_CH_TX,i,device->openair0_cfg->tx_bw)!=0)
printf("TX ch:%d filter calibration failed, bw:%fMHz\n%s\n",i,device->openair0_cfg->tx_bw/1e6,LMS_GetLastErrorMessage());
if (LMS_Calibrate(lms_device,LMS_CH_RX,i,device->openair0_cfg->rx_bw,0)!=0)
printf("RX ch:%d calibration failed, bw:%f MHz\n%s\n",i,device->openair0_cfg->rx_bw/1e6,LMS_GetLastErrorMessage());
if (LMS_Calibrate(lms_device,LMS_CH_TX,i,device->openair0_cfg->tx_bw,0)!=0)
printf("TX ch:%d calibration failed, bw:%fMHz\n%s\n",i,device->openair0_cfg->tx_bw/1e6,LMS_GetLastErrorMessage());
}
first_rx = 1;
rx_stream.channel = 0;
rx_stream.fifoSize = 256*1024;
rx_stream.throughputVsLatency = 0.1;
rx_stream.dataFmt = lms_stream_t::LMS_FMT_I12;
rx_stream.isTx = false;
if (LMS_SetupStream(lms_device, &rx_stream)!=0)
printf("RX stream setup failed %s\n",LMS_GetLastErrorMessage());
tx_stream.channel = 0;
tx_stream.fifoSize = 256*1024;
tx_stream.throughputVsLatency = 0.1;
tx_stream.dataFmt = lms_stream_t::LMS_FMT_I12;
tx_stream.isTx = true;
trx_lms_set_gains(device, device->openair0_cfg);
if (LMS_SetupStream(lms_device, &tx_stream)!=0)
printf("TX stream setup failed %s\n",LMS_GetLastErrorMessage());
printf("SR: %.3f MHz\n", (float)device->openair0_cfg->sample_rate / 1e6);
printf("SR: %.3f MHz\n", (float)device->openair0_cfg->sample_rate / 1e6);
if (LMS_StartStream(&rx_stream)!=0)
printf("Failed to start TX stream %s\n",LMS_GetLastErrorMessage());
if (LMS_StartStream(&tx_stream)!=0)
printf("Failed to start Rx stream %s\n",LMS_GetLastErrorMessage());
return 0;
}
/*! \brief Stop LMSSDR
* \param card Index of the RF card to use
* \returns 0 on success
*/
int trx_lms_stop(openair0_device *device) {
LMS_StopStream(&rx_stream);
LMS_StopStream(&tx_stream);
LMS_DestroyStream(lms_device,&rx_stream);
LMS_DestroyStream(lms_device,&tx_stream);
LMS_Close(lms_device);
return 0;
}
/*! \brief Set frequencies (TX/RX)
* \param device the hardware to use
* \param openair0_cfg openair0 Config structure (ignored. It is there to comply with RF common API)
* \param exmimo_dump_config (ignored)
* \returns 0 in success
*/
int trx_lms_set_freq(openair0_device* device, openair0_config_t *openair0_cfg,int exmimo_dump_config) {
//Control port must be connected
LMS_SetLOFrequency(lms_device,LMS_CH_TX,0,openair0_cfg->tx_freq[0]);
LMS_SetLOFrequency(lms_device,LMS_CH_RX,0,openair0_cfg->rx_freq[0]);
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 GHz
/*! \brief calibration table for LMSSDR */
// V1.2 board
rx_gain_calib_table_t calib_table_lmssdr_1v2[] = {
{3500000000.0,44.0}, // on L PAD
{2660000000.0,55.0}, // on L PAD
{2300000000.0,54.0}, // on L PAD
{1880000000.0,54.0}, // on L PAD
{816000000.0,79.0}, // on W PAD
{-1,0}};
// V1.4 board
rx_gain_calib_table_t calib_table_lmssdr[] = {
{3500000000.0,44.0}, // on H PAD
{2660000000.0,55.0}, // on H PAD
{2300000000.0,54.0}, // on H PAD
{1880000000.0,54.0}, // on H PAD
{816000000.0,79.0}, // on L PAD
{-1,0}};
/*! \brief Get LMSSDR Statistics
* \param device the hardware to use
* \returns 0 in success
*/
int trx_lms_get_stats(openair0_device* device) {
return(0);
}
/*! \brief Reset LMSSDR Statistics
* \param device the hardware to use
* \returns 0 in success
*/
int trx_lms_reset_stats(openair0_device* device) {
return(0);
}
/*! \brief Terminate operation of the LMSSDR transceiver -- free all associated resources
* \param device the hardware to use
*/
void trx_lms_end(openair0_device *device) {
}
int trx_lms_write_init(openair0_device *device)
{
return 0;
}
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 == RAU_HOST) ? "RAU": "RRU"));
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 = 40;
openair0_cfg[0].tx_bw = 30.72e6;
openair0_cfg[0].rx_bw = 30.72e6;
break;
case 15360000:
openair0_cfg[0].samples_per_packet = 2048;
openair0_cfg[0].tx_sample_advance = 50; /* TODO: to be refined */
openair0_cfg[0].tx_bw = 15.36e6;
openair0_cfg[0].rx_bw = 15.36e6;
break;
case 7680000:
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 50;
openair0_cfg[0].tx_bw = 5.0e6;
openair0_cfg[0].rx_bw = 5.0e6;
break;
case 1920000:
openair0_cfg[0].samples_per_packet = 256;
openair0_cfg[0].tx_sample_advance = 10;
openair0_cfg[0].tx_bw = 1.25e6;
openair0_cfg[0].rx_bw = 1.25e6;
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_lmssdr;
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->trx_write_init = trx_lms_write_init;
device->openair0_cfg = openair0_cfg;
return 0;
}
}
/*@}*/
sdr/LMSSDR/USERSPACE/LIB/sodera_lib.cpp
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/** sodera_lib.c
*
* Author: Raymond Knopp
*/
#include <vector>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
#include <iostream>
#include <complex>
#include <fstream>
#include <cmath>
#include "common_lib.h"
#include "lmsComms.h"
#include "LMS7002M.h"
#include "Si5351C.h"
#include "LMS_StreamBoard.h"
#ifdef __SSE4_1__
# include <smmintrin.h>
#endif
#ifdef __AVX2__
# include <immintrin.h>
#endif
using namespace std;
int num_devices=0;
/*These items configure the underlying asynch stream used by the the sync interface.
*/
#define BUFFERSIZE 4096
#define BUFFERSCOUNT 32
typedef struct
{
// --------------------------------
// variables for SoDeRa configuration
// --------------------------------
LMScomms Port;
Si5351C Si;
LMS7002M lmsControl;
LMS_StreamBoard *lmsStream;
char buffers_rx[BUFFERSIZE*BUFFERSCOUNT];
int handles[BUFFERSCOUNT];
int current_handle;
int samples_left_buffer;
double sample_rate;
// time offset between transmiter timestamp and receiver timestamp;
double tdiff;
int channelscount;
// --------------------------------
// Debug and output control
// --------------------------------
int num_underflows;
int num_overflows;
int num_seq_errors;
int64_t tx_count;
int64_t rx_count;
openair0_timestamp rx_timestamp;
} sodera_t;
typedef struct {
uint8_t reserved[8];
uint64_t counter;
char data[4080];
} StreamPacket_t;
sodera_t sodera_state;
enum STATUS {
SUCCESS,
FAILURE
};
STATUS SPI_write(LMScomms* dataPort, uint16_t address, uint16_t data)
{
assert(dataPort != nullptr);
LMScomms::GenericPacket ctrPkt;
ctrPkt.cmd = CMD_BRDSPI_WR;
ctrPkt.outBuffer.push_back((address >> 8) & 0xFF);
ctrPkt.outBuffer.push_back(address & 0xFF);
ctrPkt.outBuffer.push_back((data >> 8) & 0xFF);
ctrPkt.outBuffer.push_back(data & 0xFF);
dataPort->TransferPacket(ctrPkt);
return ctrPkt.status == 1 ? SUCCESS : FAILURE;
}
uint16_t SPI_read(LMScomms* dataPort, uint16_t address)
{
assert(dataPort != nullptr);
LMScomms::GenericPacket ctrPkt;
ctrPkt.cmd = CMD_BRDSPI_RD;
ctrPkt.outBuffer.push_back((address >> 8) & 0xFF);
ctrPkt.outBuffer.push_back(address & 0xFF);
dataPort->TransferPacket(ctrPkt);
if (ctrPkt.inBuffer.size() > 4)
return ctrPkt.inBuffer[2] * 256 + ctrPkt.inBuffer[3];
else
return 0;
}
static int trx_sodera_start(openair0_device *device)
{
sodera_t *s = (sodera_t*)device->priv;
// init recv and send streaming
printf("Starting LMS Streaming\n");
s->rx_count = 0;
s->tx_count = 0;
s->rx_timestamp = 0;
s->current_handle = 0;
// switch off RX
uint16_t regVal = SPI_read(&s->Port,0x0005);
SPI_write(&s->Port,0x0005,regVal & ~0x6);
// USB FIFO reset
LMScomms::GenericPacket ctrPkt;
ctrPkt.cmd = CMD_USB_FIFO_RST;
ctrPkt.outBuffer.push_back(0x01);
s->Port.TransferPacket(ctrPkt);
ctrPkt.outBuffer[0]=0x00;
s->Port.TransferPacket(ctrPkt);
regVal = SPI_read(&s->Port,0x0005);
// provide timestamp, set streamTXEN, set TX/RX enable
SPI_write(&s->Port,0x0005,(regVal & ~0x20) | 0x6);
if (s->channelscount==2) {
SPI_write(&s->Port,0x0001,0x0003);
SPI_write(&s->Port,0x0007,0x000A);
}
else {
SPI_write(&s->Port,0x0001,0x0001);
SPI_write(&s->Port,0x0007,0x0008);
}
for (int i=0; i< BUFFERSCOUNT ; i++)
s->handles[i] = s->Port.BeginDataReading(&s->buffers_rx[i*BUFFERSIZE],BUFFERSIZE);
printf("Armed %d transfers\n",BUFFERSCOUNT);
return 0;
}
static void trx_sodera_end(openair0_device *device)
{
sodera_t *s = (sodera_t*)device->priv;
// stop TX/RX if they were active
uint16_t regVal = SPI_read(&s->Port,0x0005);
SPI_write(&s->Port,0x0005,regVal & ~0x6);
}
static int trx_sodera_write(openair0_device *device, openair0_timestamp timestamp, void **buff, int nsamps, int cc, int flags)
{
sodera_t *s = (sodera_t*)device->priv;
return 0;
}
#define DEBUG_READ 1
static int trx_sodera_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int cc)
{
sodera_t *s = (sodera_t*)device->priv;
int samples_received=0,i,j;
int nsamps2; // aligned to upper 32 or 16 byte boundary
StreamPacket_t *p;
int16_t sampleI,sampleQ;
char *pktStart;
int offset = 0;
int num_p;
int ind=0;
int buffsize;
int spp;
int bufindex;
// this assumes that each request is of size 4096 bytes (spp = 4080/4/channelscount)
spp = sizeof(p->data)>>2; // spp = size of payload in samples
spp /= s->channelscount;
#ifdef DEBUG_READ
printf("\nIn trx_read\n");
printf("s->current_handle %d\n", s->current_handle);
printf("s->samples_left_buffer %d\n",s->samples_left_buffer);
#endif
// first get rid of remaining samples
if (s->samples_left_buffer > 0) {
buffsize = min(s->samples_left_buffer,nsamps);
pktStart = ((StreamPacket_t*)&s->buffers_rx[s->current_handle*BUFFERSIZE])->data;
pktStart += (spp-s->samples_left_buffer);
const int stepSize = s->channelscount * 3;
for (int b=0;b<buffsize<<2;b+=stepSize) {
for (int ch=0;ch<s->channelscount;ch++) {
// I sample
sampleI = (pktStart[b + 1 + 3*ch]&0x0F)<<8;
sampleI |= (pktStart[b + 3*ch]&0xFF);
sampleI = (sampleI<<4)>>4;
// Q sample
sampleQ = (pktStart[b + 2 + 3*ch]&0x0F)<<8;
sampleQ |= (pktStart[b + 1 + 3*ch]&0xFF);
sampleQ = (sampleQ<<4)>>4;
((uint32_t*)buff[ch])[ind] = ((uint32_t)sampleI) | (((uint32_t)sampleQ)<<16);
}
ind++;
}
}
if (ind == nsamps) {
s->samples_left_buffer -= nsamps;
s->rx_count += nsamps;
*ptimestamp = s->rx_timestamp;
s->rx_timestamp+=nsamps;
return(nsamps);
}
else {
s->samples_left_buffer = 0;
nsamps -= ind;
samples_received = ind;
}
// This is for the left-over part => READ from USB
num_p = nsamps / spp;
if ((nsamps%spp) > 0)
num_p++;
s->samples_left_buffer = (num_p*spp)-nsamps;
#ifdef DEBUG_READ
printf("num_p %d\n",num_p);
#endif
const int stepSize = s->channelscount * 3;
for (i=0;i<num_p;i++) {
bufindex = (s->current_handle+i)&(BUFFERSCOUNT-1);
if (s->Port.WaitForReading(s->handles[bufindex],1000) == false) {
printf("[recv] Error: request %d samples (%d/%d) WaitForReading timed out\n",nsamps,bufindex,num_p);
*ptimestamp = s->rx_timestamp;
s->rx_timestamp+=samples_received;
return(samples_received);
}
long bytesToRead=BUFFERSIZE;
if (s->Port.FinishDataReading(&s->buffers_rx[bufindex*BUFFERSIZE],bytesToRead,s->handles[bufindex]) != BUFFERSIZE) {
printf("[recv] Error: request %d samples (%d/%d) WaitForReading timed out\n",nsamps,bufindex,num_p);
*ptimestamp = s->rx_timestamp;
s->rx_timestamp+=samples_received;
return(samples_received);
}
p = (StreamPacket_t*)&s->buffers_rx[bufindex*BUFFERSIZE];
// handle timestamp
if ((i==0) & (ind==0)) { // grab the timestamp from HW
*ptimestamp = p->counter;
s->rx_timestamp = p->counter+nsamps; // for next time
#ifdef DEBUG_READ
printf("RX timestamp %d\n",s->rx_timestamp);
#endif
}
else { // check the timestamp
if (i==0) {
if ((s->rx_timestamp + ind) != p->counter) {
printf("Error, RX timestamp error, got %llu, should be %llu\n",p->counter,s->rx_timestamp+ind);
return(ind);
}
}
*ptimestamp = s->rx_timestamp;
s->rx_timestamp+=nsamps;
}
pktStart = p->data;
for (uint16_t b=0;b<sizeof(p->data);b+=stepSize) {
for (int ch=0;ch < s->channelscount;ch++) {
// I sample
sampleI = (pktStart[b + 1 + 3*ch]&0x0F)<<8;
sampleI |= (pktStart[b + 3*ch]&0xFF);
sampleI = (sampleI<<4)>>4;
// Q sample
sampleQ = (pktStart[b + 2 + 3*ch]&0x0F)<<8;
sampleQ |= (pktStart[b + 1 + 3*ch]&0xFF);
sampleQ = (sampleQ<<4)>>4;
((uint32_t*)buff[ch])[ind] = ((uint32_t)sampleI) | (((uint32_t)sampleQ)<<16);
}
ind++;
}
samples_received+=spp;
// schedule a new transmission for this index
s->handles[bufindex] = s->Port.BeginDataReading(&s->buffers_rx[bufindex*BUFFERSIZE],BUFFERSIZE);
s->current_handle=(s->current_handle+1)&(BUFFERSCOUNT-1);
}
//handle the error code
s->rx_count += samples_received;
// s->rx_timestamp = s->rx_md.time_spec.to_ticks(s->sample_rate);
return samples_received;
}
static bool is_equal(double a, double b)
{
return fabs(a-b) < 1e-6;
}
int trx_sodera_set_freq(openair0_device* device, openair0_config_t *openair0_cfg, int dummy) {
sodera_t *s = (sodera_t*)device->priv;
// s->usrp->set_tx_freq(openair0_cfg[0].tx_freq[0]);
// s->usrp->set_rx_freq(openair0_cfg[0].rx_freq[0]);
return(0);
}
int openair0_set_rx_frequencies(openair0_device* device, openair0_config_t *openair0_cfg) {
sodera_t *s = (sodera_t*)device->priv;
static int first_call=1;
static double rf_freq,diff;
// uhd::tune_request_t rx_tune_req(openair0_cfg[0].rx_freq[0]);
// rx_tune_req.rf_freq_policy = uhd::tune_request_t::POLICY_MANUAL;
// rx_tune_req.rf_freq = openair0_cfg[0].rx_freq[0];
// rf_freq=openair0_cfg[0].rx_freq[0];
// s->usrp->set_rx_freq(rx_tune_req);
return(0);
}
int trx_sodera_set_gains(openair0_device* device,
openair0_config_t *openair0_cfg) {
sodera_t *s = (sodera_t*)device->priv;
// s->usrp->set_tx_gain(openair0_cfg[0].tx_gain[0]);
// ::uhd::gain_range_t gain_range = s->usrp->get_rx_gain_range(0);
// limit to maximum gain
/* if (openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0] > gain_range.stop()) {
printf("RX Gain 0 too high, reduce by %f dB\n",
openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0] - gain_range.stop());
exit(-1);
}
s->usrp->set_rx_gain(openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0]);
printf("Setting SODERA RX gain to %f (rx_gain %f,gain_range.stop() %f)\n", openair0_cfg[0].rx_gain[0]-openair0_cfg[0].rx_gain_offset[0],openair0_cfg[0].rx_gain[0],gain_range.stop());
*/
return(0);
}
int trx_sodera_stop(int card) {
return(0);
}
rx_gain_calib_table_t calib_table_sodera[] = {
{3500000000.0,44.0},
{2660000000.0,49.0},
{2300000000.0,50.0},
{1880000000.0,53.0},
{816000000.0,58.0},
{-1,0}};
void set_rx_gain_offset(openair0_config_t *openair0_cfg, int chain_index,int bw_gain_adjust) {
int i=0;
// loop through calibration table to find best adjustment factor for RX frequency
double min_diff = 6e9,diff,gain_adj=0.0;
if (bw_gain_adjust==1) {
switch ((int)openair0_cfg[0].sample_rate) {
case 30720000:
break;
case 23040000:
gain_adj=1.25;
break;
case 15360000:
gain_adj=3.0;
break;
case 7680000:
gain_adj=6.0;
break;
case 3840000:
gain_adj=9.0;
break;
case 1920000:
gain_adj=12.0;
break;
default:
printf("unknown sampling rate %d\n",(int)openair0_cfg[0].sample_rate);
exit(-1);
break;
}
}
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+gain_adj;
}
i++;
}
}
int trx_sodera_get_stats(openair0_device* device) {
return(0);
}
int trx_sodera_reset_stats(openair0_device* device) {
return(0);
}
int openair0_dev_init_sodera(openair0_device* device, openair0_config_t *openair0_cfg)
{
sodera_t *s=&sodera_state;
size_t i;
// Initialize SODERA device
s->Port.RefreshDeviceList();
vector<string> deviceNames=s->Port.GetDeviceList();
if (deviceNames.size() == 1) {
if (s->Port.Open(0) != IConnection::SUCCESS) {
printf("Cannot open SoDeRa\n");
exit(-1);
}
LMSinfo devInfo = s->Port.GetInfo();
printf("Device %s, HW: %d, FW: %d, Protocol %d\n",
GetDeviceName(devInfo.device),
(int)devInfo.hardware,
(int)devInfo.firmware,
(int)devInfo.protocol);
printf("Configuring Si5351C\n");
s->Si.Initialize(&s->Port);
s->Si.SetPLL(0, 25000000, 0);
s->Si.SetPLL(1, 25000000, 0);
s->Si.SetClock(0, 27000000, true, false);
s->Si.SetClock(1, 27000000, true, false);
for (int i = 2; i < 8; ++i)
s->Si.SetClock(i, 27000000, false, false);
Si5351C::Status status = s->Si.ConfigureClocks();
if (status != Si5351C::SUCCESS)
{
printf("Failed to configure Si5351C");
exit(-1);
}
status = s->Si.UploadConfiguration();
if (status != Si5351C::SUCCESS)
printf("Failed to upload Si5351C configuration");
printf("Configuring LMS7002\n");
int bw_gain_adjust=0;
openair0_cfg[0].rx_gain_calib_table = calib_table_sodera;
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 = 20e6;
openair0_cfg[0].rx_bw = 20e6;
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 = 10e6;
openair0_cfg[0].rx_bw = 10e6;
openair0_cfg[0].tx_scheduling_advance = 5*openair0_cfg[0].samples_per_packet;
break;
case 7680000:
openair0_cfg[0].samples_per_packet = 1024;
openair0_cfg[0].tx_sample_advance = 50;
openair0_cfg[0].tx_bw = 5e6;
openair0_cfg[0].rx_bw = 5e6;
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;
}
s->lmsControl = LMS7002M(&s->Port);
liblms7_status opStatus;
s->lmsControl.ResetChip();
opStatus = s->lmsControl.LoadConfig(openair0_cfg[0].configFilename);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Failed to load configuration file %s\n",openair0_cfg[0].configFilename);
exit(-1);
}
opStatus = s->lmsControl.UploadAll();
if (opStatus != LIBLMS7_SUCCESS) {
printf("Failed to upload configuration file\n");
exit(-1);
}
opStatus = s->lmsControl.SetFrequencySX(LMS7002M::Tx, openair0_cfg[0].tx_freq[0]/1e6,30.72);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot set TX frequency %f MHz\n",openair0_cfg[0].tx_freq[0]/1e6);
exit(-1);
}
opStatus = s->lmsControl.SetFrequencySX(LMS7002M::Rx, openair0_cfg[0].rx_freq[0]/1e6,30.72);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot set RX frequency %f MHz\n",openair0_cfg[0].rx_freq[0]/1e6);
exit(-1);
}
// this makes RX/TX sampling rates equal
opStatus = s->lmsControl.Modify_SPI_Reg_bits(EN_ADCCLKH_CLKGN,0);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot modify SPI (EN_ADCCLKH_CLKGN)\n");
exit(-1);
}
opStatus = s->lmsControl.Modify_SPI_Reg_bits(CLKH_OV_CLKL_CGEN,2);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot modify SPI (CLKH_OV_CLKL_CGEN)\n");
exit(-1);
}
const float cgen_freq_MHz = 245.76;
const int interpolation = 0; // real interpolation = 2
const int decimation = 0; // real decimation = 2
opStatus = s->lmsControl.SetInterfaceFrequency(cgen_freq_MHz,interpolation,decimation);
if (opStatus != LIBLMS7_SUCCESS) {
printf("Cannot SetInterfaceFrequency (%f,%d,%d)\n",cgen_freq_MHz,interpolation,decimation);
exit(-1);
}
/*
// Run calibration procedure
float txrx_calibrationBandwidth_MHz = 5;
opStatus = s->lmsControl.CalibrateTx(txrx_calibrationBandwidth_MHz);
if (opStatus != LIBLMS7_SUCCESS){
printf("TX Calibration failed\n");
exit(-1);
}
opStatus = s->lmsControl.CalibrateRx(txrx_calibrationBandwidth_MHz);
if (opStatus != LIBLMS7_SUCCESS){
printf("RX Calibration failed\n");
exit(-1);
}
*/
s->lmsStream = new LMS_StreamBoard(&s->Port);
LMS_StreamBoard::Status opStreamStatus;
// this will configure that sampling rate at output of FPGA
opStreamStatus = s->lmsStream->ConfigurePLL(&s->Port,openair0_cfg[0].sample_rate,openair0_cfg[0].sample_rate,90);
if (opStatus != LIBLMS7_SUCCESS){
printf("Sample rate programming failed\n");
exit(-1);
}
/*
::uhd::gain_range_t gain_range = s->usrp->get_rx_gain_range(i);
// limit to maximum gain
if (openair0_cfg[0].rx_gain[i]-openair0_cfg[0].rx_gain_offset[i] > gain_range.stop()) {
printf("RX Gain %lu too high, lower by %f dB\n",i,openair0_cfg[0].rx_gain[i]-openair0_cfg[0].rx_gain_offset[i] - gain_range.stop());
exit(-1);
}
s->usrp->set_rx_gain(openair0_cfg[0].rx_gain[i]-openair0_cfg[0].rx_gain_offset[i],i);
printf("RX Gain %lu %f (%f) => %f (max %f)\n",i,
openair0_cfg[0].rx_gain[i],openair0_cfg[0].rx_gain_offset[i],
openair0_cfg[0].rx_gain[i]-openair0_cfg[0].rx_gain_offset[i],gain_range.stop());
}
}
for(i=0;i<s->usrp->get_tx_num_channels();i++) {
if (i<openair0_cfg[0].tx_num_channels) {
s->usrp->set_tx_rate(openair0_cfg[0].sample_rate,i);
s->usrp->set_tx_bandwidth(openair0_cfg[0].tx_bw,i);
printf("Setting tx freq/gain on channel %lu/%lu: BW %f (readback %f)\n",i,s->usrp->get_tx_num_channels(),openair0_cfg[0].tx_bw/1e6,s->usrp->get_tx_bandwidth(i)/1e6);
s->usrp->set_tx_freq(openair0_cfg[0].tx_freq[i],i);
s->usrp->set_tx_gain(openair0_cfg[0].tx_gain[i],i);
}
}
*/
// create tx & rx streamer
//stream_args_rx.args["spp"] = str(boost::format("%d") % 2048);//(openair0_cfg[0].rx_num_channels*openair0_cfg[0].samples_per_packet));
/*
for (i=0;i<openair0_cfg[0].rx_num_channels;i++) {
if (i<openair0_cfg[0].rx_num_channels) {
printf("RX Channel %lu\n",i);
std::cout << boost::format("Actual RX sample rate: %fMSps...") % (s->usrp->get_rx_rate(i)/1e6) << std::endl;
std::cout << boost::format("Actual RX frequency: %fGHz...") % (s->usrp->get_rx_freq(i)/1e9) << std::endl;
std::cout << boost::format("Actual RX gain: %f...") % (s->usrp->get_rx_gain(i)) << std::endl;
std::cout << boost::format("Actual RX bandwidth: %fM...") % (s->usrp->get_rx_bandwidth(i)/1e6) << std::endl;
std::cout << boost::format("Actual RX antenna: %s...") % (s->usrp->get_rx_antenna(i)) << std::endl;
}
}
for (i=0;i<openair0_cfg[0].tx_num_channels;i++) {
if (i<openair0_cfg[0].tx_num_channels) {
printf("TX Channel %lu\n",i);
std::cout << std::endl<<boost::format("Actual TX sample rate: %fMSps...") % (s->usrp->get_tx_rate(i)/1e6) << std::endl;
std::cout << boost::format("Actual TX frequency: %fGHz...") % (s->usrp->get_tx_freq(i)/1e9) << std::endl;
std::cout << boost::format("Actual TX gain: %f...") % (s->usrp->get_tx_gain(i)) << std::endl;
std::cout << boost::format("Actual TX bandwidth: %fM...") % (s->usrp->get_tx_bandwidth(i)/1e6) << std::endl;
std::cout << boost::format("Actual TX antenna: %s...") % (s->usrp->get_tx_antenna(i)) << std::endl;
}
*/
}
else {
printf("Please connect SoDeRa\n");
exit(-1);
}
device->priv = s;
device->trx_start_func = trx_sodera_start;
device->trx_write_func = trx_sodera_write;
device->trx_read_func = trx_sodera_read;
device->trx_get_stats_func = trx_sodera_get_stats;
device->trx_reset_stats_func = trx_sodera_reset_stats;
device->trx_end_func = trx_sodera_end;
device->trx_stop_func = trx_sodera_stop;
device->trx_set_freq_func = trx_sodera_set_freq;
device->trx_set_gains_func = trx_sodera_set_gains;
s->sample_rate = openair0_cfg[0].sample_rate;
s->channelscount = openair0_cfg[0].rx_num_channels;
// TODO:
return 0;
}