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- /* Audio Library for Teensy 3.X
- * Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com
- *
- * Development of this audio library was funded by PJRC.COM, LLC by sales of
- * Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop
- * open source software by purchasing Teensy or other PJRC products.
- *
- * 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, development funding 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.
- */
-
- #ifndef input_adcs_h_
- #define input_adcs_h_
-
- #include <core/Arduino.h>
- #include <core/AudioStream.h>
- #include <core/DMAChannel.h>
-
- class AudioInputAnalogStereo : public AudioStream
- {
- public:
- AudioInputAnalogStereo() : AudioStream(0, NULL) {
- init(A2, A3);
- }
- AudioInputAnalogStereo(uint8_t pin0, uint8_t pin1) : AudioStream(0, NULL) {
- init(pin0, pin1);
- }
- virtual void update(void);
- private:
- static audio_block_t *block_left;
- static audio_block_t *block_right;
- static uint16_t offset_left;
- static uint16_t offset_right;
- static int32_t hpf_y1[2];
- static int32_t hpf_x1[2];
-
- static bool update_responsibility;
- static DMAChannel dma0;
- static DMAChannel dma1;
- static void isr0(void);
- static void isr1(void);
- static void init(uint8_t pin0, uint8_t pin1);
- };
-
- #endif
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