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* Copyright 2008,2009 Free Software Foundation, Inc.
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* Interface to daughterboard code
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#include <usrp2_types.h>
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/* pointers to daughterboard structures */
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extern struct db_base *tx_dboard;
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extern struct db_base *rx_dboard;
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//! Intermediate tuning information
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//! The RF frequency that corresponds to DC in the IF from the daughterboard
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u2_fxpt_freq_t baseband_freq;
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//! The DDC/DUC frequency used to down/up convert to/from the target frequency
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u2_fxpt_freq_t dxc_freq;
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//! Any differerence btwn target and actual (typically < 0.01 Hz)
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u2_fxpt_freq_t residual_freq;
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//! Is the complex baseband spectrum inverted
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* \brief One-time init at powerup
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* Sets rx_dboard, tx_dboard and initializes daughterboards.
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* \brief Set daughterboard LO offset frequency.
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* \param[in] db is the daughterboard instance
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* \param[in] offset is the amount to add to tuning requests
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* \param[out] success or failure
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db_set_lo_offset(struct db_base *db, u2_fxpt_freq_t offset);
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* \brief Two stage tuning. Given target_freq, tune LO and DDC/DUC
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* \param[in] db is the daughterboard instance
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* \param[in] target_freq is the freq to translate the complex baseband to/from.
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* \param[out] result provides details of the resulting configuration.
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db_tune(struct db_base *db, u2_fxpt_freq_t target_freq, struct tune_result *result);
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* Set only the DDC frequency
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db_set_ddc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq);
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* Set only the DUC frequency
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db_set_duc_freq(u2_fxpt_freq_t dxc_freq, u2_fxpt_freq_t *actual_dxc_freq);
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db_set_gain(struct db_base *db, u2_fxpt_gain_t gain);
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#endif /* INCLUDED_DB_H */