circuitpython/ports/raspberrypi/common-hal/pulseio/PulseIn.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Dave Putz for Adafruit Industries
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*
* 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.
*/
#ifndef MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PULSEIO_PULSEIN_H
#define MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PULSEIO_PULSEIN_H
#include "common-hal/microcontroller/Pin.h"
#include "src/rp2_common/hardware_pio/include/hardware/pio.h"
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#include "common-hal/rp2pio/StateMachine.h"
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#include "py/obj.h"
typedef struct {
mp_obj_base_t base;
uint8_t pin;
bool idle_state;
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uint16_t maxlen;
uint16_t *buffer;
volatile bool last_level;
volatile uint32_t level_count;
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volatile uint16_t len;
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volatile uint16_t start;
volatile uint16_t buf_index;
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rp2pio_statemachine_obj_t state_machine;
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} pulseio_pulsein_obj_t;
void pulsein_reset(void);
void common_hal_pulseio_pulsein_interrupt();
#endif // MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PULSEIO_PULSEIN_H