diff --git a/radio/BLADERF/bladerf_lib.c b/radio/BLADERF/bladerf_lib.c index 708d43583e..5bb2f069dc 100644 --- a/radio/BLADERF/bladerf_lib.c +++ b/radio/BLADERF/bladerf_lib.c @@ -19,60 +19,72 @@ * contact@openairinterface.org */ -/** bladerf_lib.c - * - * Author: navid nikaein - */ - - #include #include -#include -#include "bladerf_lib.h" -#include "math.h" -#include "PHY/sse_intrin.h" +#include + +#include +#include "common_lib.h" + +/*! \brief BladeRF specific data structure */ +typedef struct { + //! opaque BladeRF device struct. An empty ("") or NULL device identifier will result in the first encountered device being opened + //! (using the first discovered backend) + struct bladerf *dev; + + //! Number of buffers + unsigned int num_buffers; + //! Buffer size + unsigned int buffer_size; + //! Number of transfers + unsigned int num_transfers; + //! RX timeout + unsigned int rx_timeout_ms; + //! TX timeout + unsigned int tx_timeout_ms; + //! Metadata for RX + struct bladerf_metadata meta_rx; + //! Metadata for TX + struct bladerf_metadata meta_tx; + //! Sample rate + unsigned int sample_rate; + + // -------------------------------- + // Debug and output control + // -------------------------------- + //! Number of underflows + int num_underflows; + //! Number of overflows + int num_overflows; + //! number of RX errors + int num_rx_errors; + //! Number of TX errors + int num_tx_errors; + + //! timestamp of current TX + uint64_t tx_current_ts; + //! timestamp of current RX + uint64_t rx_current_ts; + //! number of actual samples transmitted + uint64_t tx_actual_nsamps; + //! number of actual samples received + uint64_t rx_actual_nsamps; + //! number of TX samples + uint64_t tx_nsamps; + //! number of RX samples + uint64_t rx_nsamps; + //! number of TX count + uint64_t tx_count; + //! number of RX count + uint64_t rx_count; +} brf_state_t; + +int brf_error(int status); /** @addtogroup _BLADERF_PHY_RF_INTERFACE_ * @{ */ -//! Number of BladeRF devices -int num_devices=0; - -/*These items configure the underlying asynch stream used by the the sync interface. - */ - -/*! \brief BladeRF Init function (not used at the moment) - * \param device RF frontend parameters set by application - * \returns 0 on success - */ -int trx_brf_init(openair0_device_t *device) -{ - return 0; -} - - -/*! \brief get current timestamp - *\param device the hardware to use - *\param module the bladeRf module - *\returns timestamp of BladeRF - */ -openair0_timestamp_t trx_get_timestamp(openair0_device_t *device, bladerf_module module) -{ - int status; - struct bladerf_metadata meta; - brf_state_t *brf = (brf_state_t*)device->priv; - memset(&meta, 0, sizeof(meta)); - - if ((status=bladerf_get_timestamp(brf->dev, module, &meta.timestamp)) != 0) { - fprintf(stderr,"Failed to get current %s timestamp: %s\n",(module == BLADERF_MODULE_RX ) ? "RX" : "TX", bladerf_strerror(status)); - return -1; - } // else {printf("Current RX timestampe 0x%016"PRIx64"\n", meta.timestamp); } - - return meta.timestamp; -} - - /*! \brief Start BladeRF * \param device the hardware to use * \returns 0 on success @@ -314,624 +326,6 @@ int trx_brf_write_init(openair0_device_t *device) return 0; } -#define RXDCLENGTH 16384 -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}; - -/*! \brief calibration table for BladeRF */ -rx_gain_calib_table_t calib_table_fx4[] = { - {2300000000.0,53.5}, - {1880000000.0,57.0}, - {816000000.0,73.0}, - {-1,0} -}; - - -/*! \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 Calibrate LMSSDR RF - * \param device the hardware to use - */ -void calibrate_rf(openair0_device_t *device) -{ - /* TODO: this function does not seem to work. Disabled until fixed. */ - return; - - brf_state_t *brf = (brf_state_t *)device->priv; - openair0_timestamp_t ptimestamp; - int16_t *calib_buffp,*calib_tx_buffp; - int16_t calib_buff[2*RXDCLENGTH]; - int16_t calib_tx_buff[2*RXDCLENGTH]; - int i,j,offI,offQ,offIold,offQold,offInew,offQnew,offphase,offphaseold,offphasenew,offgain,offgainold,offgainnew; - int32_t meanI,meanQ,meanIold,meanQold; - int cnt=0,loop; - - // put TX on a far-away frequency to avoid interference in RX band - bladerf_set_frequency(brf->dev,BLADERF_MODULE_TX, (unsigned int) device->openair0_cfg->rx_freq[0] + 200e6); - // Set gains to close to max - bladerf_set_gain(brf->dev, BLADERF_MODULE_RX, 60); - bladerf_set_gain(brf->dev, BLADERF_MODULE_TX, 60); - - // fill TX buffer with fs/8 complex sinusoid - j=0; - for (i=0; idev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_I,offIold); - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_Q,offQold); - for (i=0; i<10; i++) - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - - for (meanIold=meanQold=i=j=0; i (%d,%d)\n",offIold,offQold,meanIold,meanQold); - - offI=offQ=-2048; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_I,offI); - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_Q,offQ); - for (i=0; i<10; i++) - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offI,offQ,meanI,meanQ); - - while (cnt++ < 12) { - - offInew=(offIold+offI)>>1; - offQnew=(offQold+offQ)>>1; - - if (meanI*meanI < meanIold*meanIold) { - meanIold = meanI; - offIold = offI; - printf("[BRF] *** RX DC: offI %d => %d\n",offIold,meanI); - } - if (meanQ*meanQ < meanQold*meanQold) { - meanQold = meanQ; - offQold = offQ; - printf("[BRF] *** RX DC: offQ %d => %d\n",offQold,meanQ); - } - offI = offInew; - offQ = offQnew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_I,offI); - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_Q,offQ); - - for (i=0; i<10; i++) - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offI,offQ,meanI,meanQ); - } - - printf("[BRF] RX DC: (%d,%d) => (%d,%d)\n",offIold,offQold,meanIold,meanQold); - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_I,offIold); - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_LMS_DCOFF_Q,offQold); - - // TX DC offset - // PUT TX as f_RX + fs/4 - // loop back BLADERF_LB_RF_LNA1 - bladerf_set_frequency(brf->dev,BLADERF_MODULE_TX, (unsigned int) device->openair0_cfg->rx_freq[0] + (unsigned int) device->openair0_cfg->sample_rate/4); - bladerf_set_loopback (brf->dev,BLADERF_LB_RF_LNA1); - - offIold=2048; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_I,offIold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - for (meanIold=meanQold=i=j=0; i (%d,%d)\n",offIold,meanIold,meanQold); - - offI=-2048; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_I,offI); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offI,meanI,meanQ); - cnt = 0; - while (cnt++ < 12) { - - offInew=(offIold+offI)>>1; - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - printf("[BRF] TX DC (offI): ([%d,%d]) => %d : %d\n",offIold,offI,offInew,meanI*meanI+meanQ*meanQ); - meanIold = meanI; - meanQold = meanQ; - offIold = offI; - } - offI = offInew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_I,offI); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offI,meanI,meanQ); - } - - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_I,offIold); - - offQold=2048; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_Q,offQold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/4 - for (meanIold=meanQold=i=j=0; i (%d,%d)\n",offQold,meanIold,meanQold); - - offQ=-2048; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_Q,offQ); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offQ,meanI,meanQ); - - cnt=0; - while (cnt++ < 12) { - - offQnew=(offQold+offQ)>>1; - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - printf("[BRF] TX DC (offQ): ([%d,%d]) => %d : %d\n",offQold,offQ,offQnew,meanI*meanI+meanQ*meanQ); - - meanIold = meanI; - meanQold = meanQ; - offQold = offQ; - } - offQ = offQnew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_Q,offQ); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - for (meanI=meanQ=i=j=0; i (%d,%d)\n",offQ,meanI,meanQ); - } - - printf("[BRF] TX DC: (%d,%d) => (%d,%d)\n",offIold,offQold,meanIold,meanQold); - - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_LMS_DCOFF_Q,offQold); - - // TX IQ imbalance - for (loop=0; loop<2; loop++) { - offphaseold=4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_PHASE,offphaseold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanIold=meanQold=i=j=0; i>11; - meanQold+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - - meanIold/=RXDCLENGTH; - meanQold/=RXDCLENGTH; - printf("[BRF] TX IQ (offphase): %d => (%d,%d)\n",offphaseold,meanIold,meanQold); - - offphase=-4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_PHASE,offphase); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - printf("[BRF] TX IQ (offphase): %d => (%d,%d)\n",offphase,meanI,meanQ); - - cnt=0; - while (cnt++ < 13) { - - offphasenew=(offphaseold+offphase)>>1; - printf("[BRF] TX IQ (offphase): ([%d,%d]) => %d : %d\n",offphaseold,offphase,offphasenew,meanI*meanI+meanQ*meanQ); - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - - - meanIold = meanI; - meanQold = meanQ; - offphaseold = offphase; - } - offphase = offphasenew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_PHASE,offphase); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - - // printf("[BRF] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ); - } - - printf("[BRF] TX IQ offphase: %d => (%d,%d)\n",offphaseold,meanIold,meanQold); - - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_PHASE,offphaseold); - - offgainold=4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_GAIN,offgainold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanIold=meanQold=i=j=0; i>11; - meanQold+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - - meanIold/=RXDCLENGTH; - meanQold/=RXDCLENGTH; - printf("[BRF] TX IQ (offgain): %d => (%d,%d)\n",offgainold,meanIold,meanQold); - - offgain=-4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_GAIN,offgain); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - printf("[BRF] TX IQ (offgain): %d => (%d,%d)\n",offgain,meanI,meanQ); - - cnt=0; - while (cnt++ < 13) { - - offgainnew=(offgainold+offgain)>>1; - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - printf("[BRF] TX IQ (offgain): ([%d,%d]) => %d : %d\n",offgainold,offgain,offgainnew,meanI*meanI+meanQ*meanQ); - - meanIold = meanI; - meanQold = meanQ; - offgainold = offgain; - } - offgain = offgainnew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_GAIN,offgain); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on fs/8 (Image of TX signal in +ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_fsover8[(i+2)&7] + calib_buff[j+1]*cos_fsover8[i&7])>>11; - j+=2; - } - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - - // printf("[BRF] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ); - } - - printf("[BRF] TX IQ offgain: %d => (%d,%d)\n",offgainold,meanIold,meanQold); - - bladerf_set_correction(brf->dev,BLADERF_MODULE_TX,BLADERF_CORR_FPGA_GAIN,offgainold); - } - - // RX IQ imbalance - for (loop=0; loop<2; loop++) { - offphaseold=4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_PHASE,offphaseold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on -3fs/8 (Image of TX signal in -ve frequencies) - for (meanIold=meanQold=i=j=0; i>11; - meanQold+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - - meanIold/=RXDCLENGTH; - meanQold/=RXDCLENGTH; - printf("[BRF] RX IQ (offphase): %d => (%d,%d)\n",offphaseold,meanIold,meanQold); - - offphase=-4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_PHASE,offphase); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on -3fs/8 (Image of TX signal in -ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - printf("[BRF] RX IQ (offphase): %d => (%d,%d)\n",offphase,meanI,meanQ); - - cnt=0; - while (cnt++ < 13) { - - offphasenew=(offphaseold+offphase)>>1; - printf("[BRF] RX IQ (offphase): ([%d,%d]) => %d : %d\n",offphaseold,offphase,offphasenew,meanI*meanI+meanQ*meanQ); - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - - - meanIold = meanI; - meanQold = meanQ; - offphaseold = offphase; - } - offphase = offphasenew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_PHASE,offphase); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on -3fs/8 (Image of TX signal in -ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - - // printf("[BRF] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ); - } - - printf("[BRF] RX IQ offphase: %d => (%d,%d)\n",offphaseold,meanIold,meanQold); - - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_PHASE,offphaseold); - - offgainold=4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_GAIN,offgainold); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0,0); - } - // project on -3fs/8 (Image of TX signal in +ve frequencies) - for (meanIold=meanQold=i=j=0; i>11; - meanQold+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - - meanIold/=RXDCLENGTH; - meanQold/=RXDCLENGTH; - printf("[BRF] RX IQ (offgain): %d => (%d,%d)\n",offgainold,meanIold,meanQold); - - offgain=-4096; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_GAIN,offgain); - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on 3fs/8 (Image of TX signal in -ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - printf("[BRF] RX IQ (offgain): %d => (%d,%d)\n",offgain,meanI,meanQ); - - cnt=0; - while (cnt++ < 13) { - - offgainnew=(offgainold+offgain)>>1; - if (meanI*meanI+meanQ*meanQ < meanIold*meanIold +meanQold*meanQold) { - printf("[BRF] RX IQ (offgain): ([%d,%d]) => %d : %d\n",offgainold,offgain,offgainnew,meanI*meanI+meanQ*meanQ); - - meanIold = meanI; - meanQold = meanQ; - offgainold = offgain; - } - offgain = offgainnew; - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_GAIN,offgain); - - for (i=0; i<10; i++) { - trx_brf_read(device, &ptimestamp, (void **)&calib_buffp, RXDCLENGTH, 0); - trx_brf_write(device,ptimestamp+5*RXDCLENGTH, (void **)&calib_tx_buffp, RXDCLENGTH, 0, 0); - } - // project on -3fs/8 (Image of TX signal in -ve frequencies) - for (meanI=meanQ=i=j=0; i>11; - meanQ+= (calib_buff[j]*cos_3fsover8[(i+2)&7] + calib_buff[j+1]*cos_3fsover8[i&7])>>11; - j+=2; - } - meanI/=RXDCLENGTH; - meanQ/=RXDCLENGTH; - - // printf("[BRF] TX DC (offQ): %d => (%d,%d)\n",offQ,meanI,meanQ); - } - - printf("[BRF] RX IQ offgain: %d => (%d,%d)\n",offgainold,meanIold,meanQold); - - bladerf_set_correction(brf->dev,BLADERF_MODULE_RX,BLADERF_CORR_FPGA_GAIN,offgainold); - } - - bladerf_set_frequency(brf->dev,BLADERF_MODULE_TX, (unsigned int) device->openair0_cfg->tx_freq[0]); - bladerf_set_loopback(brf->dev,BLADERF_LB_NONE); - bladerf_set_gain(brf->dev, BLADERF_MODULE_RX, (unsigned int) device->openair0_cfg->rx_gain[0]-device->openair0_cfg[0].rx_gain_offset[0]); - bladerf_set_gain(brf->dev, BLADERF_MODULE_TX, (unsigned int) device->openair0_cfg->tx_gain[0]); - // LOG_M("blade_rf_test.m","rxs",calib_buff,RXDCLENGTH,1,1); -} - - /*! \brief Initialize Openair BLADERF target. It returns 0 if OK * \param device the hardware to use * \param openair0_cfg RF frontend parameters set by application @@ -969,7 +363,6 @@ int device_init(openair0_device_t *device, openair0_config_t *openair0_cfg) exit(-1); break; } - openair0_cfg->rx_gain_calib_table = calib_table_fx4; // The number of buffers to use in the underlying data stream brf->num_buffers = 128; @@ -1030,7 +423,6 @@ int device_init(openair0_device_t *device, openair0_config_t *openair0_cfg) } else printf("[BRF] set RX bandwidth to %u, %u\n",(unsigned int)openair0_cfg->rx_bw*2, actual_value); - set_rx_gain_offset(&openair0_cfg[0],0); if ((status=bladerf_set_gain(brf->dev, BLADERF_MODULE_RX, (int) openair0_cfg->rx_gain[0]-openair0_cfg[0].rx_gain_offset[0])) != 0) { fprintf(stderr,"Failed to set RX gain: %s\n",bladerf_strerror(status)); brf_error(status); @@ -1097,24 +489,6 @@ int device_init(openair0_device_t *device, openair0_config_t *openair0_cfg) } else printf("[BRF] RX module enabled \n"); - // calibrate - -#if 0 - /* those calls fail for "Nuand bladeRF 2.0 (bladerf2)", so commented, - * but let's keep the code in case it's needed (for other boards, - * for anything, unfortunately we don't have other boards to test - * right now) - */ - if ((status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_LPF_TUNING)) != 0 || - (status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_TX_LPF)) != 0 || - (status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_RX_LPF)) != 0 || - (status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_RXVGA2)) != 0) { - fprintf(stderr, "[BRF] error calibrating\n"); - brf_error(status); - } else - printf("[BRF] calibration OK\n"); -#endif - /* set log to info, available log levels are: * - BLADERF_LOG_LEVEL_VERBOSE * - BLADERF_LOG_LEVEL_DEBUG @@ -1141,8 +515,6 @@ int device_init(openair0_device_t *device, openair0_config_t *openair0_cfg) device->openair0_cfg = openair0_cfg; device->priv = (void *)brf; - calibrate_rf(device); - // memcpy((void*)&device->openair0_cfg,(void*)&openair0_cfg[0],sizeof(openair0_config_t)); if ((status=bladerf_enable_module(brf->dev, BLADERF_MODULE_TX, false)) != 0) { @@ -1168,36 +540,4 @@ int brf_error(int status) exit(-1); return status; // or status error code } - - -/*! \brief Open BladeRF from serial port - * \param serial name of serial port on which to open BladeRF device - * \returns bladerf device structure - */ -struct bladerf * open_bladerf_from_serial(const char *serial) -{ - int status; - struct bladerf *dev; - struct bladerf_devinfo info; - /* Initialize all fields to "don't care" wildcard values. - * - * Immediately passing this to bladerf_open_with_devinfo() would cause - * libbladeRF to open any device on any available backend. */ - bladerf_init_devinfo(&info); - /* Specify the desired device's serial number, while leaving all other - * fields in the info structure wildcard values */ - strncpy(info.serial, serial, BLADERF_SERIAL_LENGTH - 1); - info.serial[BLADERF_SERIAL_LENGTH - 1] = '\0'; - status = bladerf_open_with_devinfo(&dev, &info); - - if (status == BLADERF_ERR_NODEV) { - printf("No devices available with serial=%s\n", serial); - return NULL; - } else if (status != 0) { - fprintf(stderr, "Failed to open device with serial=%s (%s)\n", serial, bladerf_strerror(status)); - return NULL; - } else { - return dev; - } -} /*@}*/ diff --git a/radio/BLADERF/bladerf_lib.h b/radio/BLADERF/bladerf_lib.h deleted file mode 100644 index a3ba44ee6c..0000000000 --- a/radio/BLADERF/bladerf_lib.h +++ /dev/null @@ -1,122 +0,0 @@ -/* - * 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 - */ - -/** bladerf_lib.h - * - * Author: navid nikaein - */ - -#ifndef BLADERF_LIB_H -#define BLADERF_LIB_H - -#include - -#include "common_lib.h" - -/** @addtogroup _BLADERF_PHY_RF_INTERFACE_ - * @{ - */ - -/*! \brief BladeRF specific data structure */ -typedef struct { - - //! opaque BladeRF device struct. An empty ("") or NULL device identifier will result in the first encountered device being opened (using the first discovered backend) - struct bladerf *dev; - - //! Number of buffers - unsigned int num_buffers; - //! Buffer size - unsigned int buffer_size; - //! Number of transfers - unsigned int num_transfers; - //! RX timeout - unsigned int rx_timeout_ms; - //! TX timeout - unsigned int tx_timeout_ms; - //! Metadata for RX - struct bladerf_metadata meta_rx; - //!Metadata for TX - struct bladerf_metadata meta_tx; - //! Sample rate - unsigned int sample_rate; - //! time offset between transmiter timestamp and receiver timestamp; - double tdiff; - //! TX number of forward samples use brf_time_offset to get this value - int tx_forward_nsamps; //166 for 20Mhz - - - // -------------------------------- - // Debug and output control - // -------------------------------- - //! Number of underflows - int num_underflows; - //! Number of overflows - int num_overflows; - //! number of sequential errors - int num_seq_errors; - //! number of RX errors - int num_rx_errors; - //! Number of TX errors - int num_tx_errors; - - //! timestamp of current TX - uint64_t tx_current_ts; - //! timestamp of current RX - uint64_t rx_current_ts; - //! number of actual samples transmitted - uint64_t tx_actual_nsamps; - //! number of actual samples received - uint64_t rx_actual_nsamps; - //! number of TX samples - uint64_t tx_nsamps; - //! number of RX samples - uint64_t rx_nsamps; - //! number of TX count - uint64_t tx_count; - //! number of RX count - uint64_t rx_count; - //! timestamp of RX packet - openair0_timestamp_t rx_timestamp; - -} brf_state_t; -/* - * func prototypes - */ -/*! \brief BladeRF Init function (not used at the moment) - * \param device RF frontend parameters set by application - */ -int trx_brf_init(openair0_device_t *device); - -/*! \brief get current timestamp - *\param device the hardware to use - *\param module the bladeRf module - */ -openair0_timestamp_t trx_get_timestamp(openair0_device_t *device, bladerf_module module); - -/*! \brief bladeRF error report - * \param status - * \returns 0 on success - */ -int brf_error(int status); - -/*@}*/ - -#endif /* BLADERF_LIB_H */