circuitpython/ports/espressif/common-hal/microcontroller/Pin.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Scott Shawcroft
*
* 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.
*/
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#ifndef MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_MICROCONTROLLER_PIN_H
#define MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_MICROCONTROLLER_PIN_H
#include "py/mphal.h"
#include "peripherals/pins.h"
// 64-bit pin mask for a single bit
#define PIN_BIT(pin_number) (((uint64_t)1) << pin_number)
extern void common_hal_reset_pin(const mcu_pin_obj_t *pin);
extern void common_hal_never_reset_pin(const mcu_pin_obj_t *pin);
extern void reset_all_pins(void);
// reset_pin_number takes the pin number instead of the pointer so that objects don't
// need to store a full pointer.
extern void reset_pin_number(gpio_num_t pin_number);
extern void claim_pin(const mcu_pin_obj_t *pin);
extern void claim_pin_number(gpio_num_t pin_number);
extern bool pin_number_is_free(gpio_num_t pin_number);
extern void never_reset_pin_number(gpio_num_t pin_number);
extern void preserve_pin_number(gpio_num_t pin_number);
extern void clear_pin_preservations(void);
// Allow the board to reset a pin in a board-specific way. This can be used
// for LEDs or enable pins to put them in a state beside the default pull-up.
// Return true to indicate that the pin was reset. Returning false will lead to
// the port-default reset behavior.
extern bool espressif_board_reset_pin_number(gpio_num_t pin_number);
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#endif // MICROPY_INCLUDED_ESPRESSIF_COMMON_HAL_MICROCONTROLLER_PIN_H