62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_AUDIOIO_AUDIOOUT_H__
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#define __MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_AUDIOIO_AUDIOOUT_H__
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#include "common-hal/microcontroller/Pin.h"
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#include "asf/sam0/drivers/tc/tc.h"
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#include "extmod/vfs_fat_file.h"
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#include "py/obj.h"
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typedef struct {
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mp_obj_base_t base;
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const mcu_pin_obj_t *pin;
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uint32_t frequency;
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uint8_t* buffer;
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// File playback specific:
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uint8_t* second_buffer;
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DmacDescriptor* second_descriptor;
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uint32_t file_length; // In bytes
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uint16_t data_start; // Where the data values start
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uint8_t bytes_per_sample;
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bool signed_samples;
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uint16_t last_loaded_block;
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uint32_t bytes_remaining;
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bool loop;
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uint32_t len;
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pyb_file_obj_t* file;
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} audioio_audioout_obj_t;
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void audioout_reset(void);
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void audioout_background(void);
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#endif // __MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_AUDIOIO_AUDIOOUT_H__
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