cv_reader.h
// Copyright 2017 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.
//
// -----------------------------------------------------------------------------
//
// CV reader.

#ifndef STAGES_CV_READER_H_
#define STAGES_CV_READER_H_

#include "stmlib/stmlib.h"

#include "stages/drivers/pots_adc.h"
#include "stages/drivers/cv_adc.h"
#include "stages/io_buffer.h"

namespace stages {

class Settings;

class CvReader {
 public:
  CvReader() { }
  ~CvReader() { }
  
  void Init(Settings* settings);
  void Read(IOBuffer::Block* block);
  
  inline uint8_t raw_cv(int i) const {
    return (int32_t(cv_adc_.value(i)) + 32768) >> 8;
  }

  inline uint8_t raw_pot(int i) const {
    return pots_adc_.value(ADC_GROUP_POT, i) >> 8;
  }

  inline uint8_t raw_slider(int i) const {
    return pots_adc_.value(ADC_GROUP_SLIDER, i) >> 8;
  }
  
  inline float lp_cv(int i) const {
    return lp_cv_2_[i];
  }

 private:
  Settings* settings_;
  CvAdc cv_adc_;
  PotsAdc pots_adc_;
  
  float lp_cv_[kNumChannels];
  float lp_cv_2_[kNumChannels];
  float lp_slider_[kNumChannels];
  float lp_pot_[kNumChannels];
  
  DISALLOW_COPY_AND_ASSIGN(CvReader);
};

}  // namespace stages

#endif  // STAGES_CV_READER_H_