/* 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 output_i2s_f32_h_ #define output_i2s_f32_h_ #include "Arduino.h" #include "AudioStream_F32.h" #include "AudioStream.h" #include "DMAChannel.h" class AudioOutputI2S_F32 : public AudioStream_F32 { //GUI: inputs:2, outputs:0 //this line used for automatic generation of GUI node public: AudioOutputI2S_F32(void) : AudioStream_F32(2, inputQueueArray) { begin(); } virtual void update(void); void begin(void); friend class AudioInputI2S_F32; protected: AudioOutputI2S_F32(int dummy): AudioStream_F32(2, inputQueueArray) {} // to be used only inside AudioOutputI2Sslave !! static void config_i2s(void); static audio_block_t *block_left_1st; static audio_block_t *block_right_1st; static bool update_responsibility; static DMAChannel dma; static void isr(void); private: static audio_block_t *block_left_2nd; static audio_block_t *block_right_2nd; static uint16_t block_left_offset; static uint16_t block_right_offset; audio_block_f32_t *inputQueueArray[2]; }; #endif