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Filesstreams
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bootloader
drivers
hardware_design
resources
__init__.py
audio_cv_meter.h
compressor.cc
compressor.h
cv_scaler.cc
cv_scaler.h
envelope.cc
envelope.h
filter_controller.h
follower.cc
follower.h
gain.h
lorenz_generator.cc
lorenz_generator.h
makefile
meta_parameters.h
processor.cc
processor.h
resources.cc
resources.h
streams.cc
svf.cc
svf.h
ui.cc
ui.h
vactrol.cc
vactrol.h
cv_scaler.h
// Copyright 2013 Olivier Gillet. // // Author: Olivier Gillet (ol.gillet@gmail.com) // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // // See http://creativecommons.org/licenses/MIT/ for more information. // // ----------------------------------------------------------------------------- // // Calibration settings. #ifndef STREAMS_CV_SCALER_H_ #define STREAMS_CV_SCALER_H_ #include "stmlib/stmlib.h" #include "streams/cv_scaler.h" #include "streams/drivers/adc.h" namespace streams { const uint8_t kNumChannels = 2; struct CalibrationSettings { uint16_t excite_offset[kNumChannels]; uint16_t audio_offset[kNumChannels]; uint16_t dac_offset[kNumChannels]; uint16_t padding[2]; }; class CvScaler { public: CvScaler() { } ~CvScaler() { } void Init(Adc* adc); void CaptureAdcOffsets(); void SaveCalibrationData(); bool can_calibrate() const; // This class owns the calibration data and is reponsible for removing // offsets. inline int16_t audio_sample(uint8_t channel) const { int32_t value = static_cast<int32_t>( calibration_settings_.audio_offset[channel]) - \ adc_->cv(channel * 3 + 1); CLIP(value); return value; } inline int16_t excite_sample(uint8_t channel) const { int32_t value = static_cast<int32_t>( calibration_settings_.excite_offset[channel]) - \ adc_->cv(channel * 3); CLIP(value); return value; } inline int32_t gain_sample(uint8_t channel) const { return -2 * adc_->cv(channel * 3 + 2); } inline int32_t raw_gain_sample(uint8_t channel) const { return adc_->cv(channel * 3 + 2); } inline void set_dac_offset(uint8_t channel, uint16_t offset) { calibration_settings_.dac_offset[channel] = offset; } inline uint16_t ScaleGain(uint8_t channel, uint16_t gain) const { int32_t g = static_cast<int32_t>(gain); g += static_cast<int32_t>(calibration_settings_.dac_offset[channel]); if (g > 65535) { g = 65535; } return static_cast<uint16_t>(g); } private: Adc* adc_; CalibrationSettings calibration_settings_; DISALLOW_COPY_AND_ASSIGN(CvScaler); }; } // namespace streams #endif // STREAMS_CV_SCALER_H_
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