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

62 lines
2.2 KiB
C

/*
* 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.
*/
#ifndef MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H
#define MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H
#include "py/mphal.h"
#include "peripherals/nrf/pins.h"
#ifdef MICROPY_HW_NEOPIXEL
extern bool neopixel_in_use;
#endif
#ifdef MICROPY_HW_APA102_MOSI
extern bool apa102_sck_in_use;
extern bool apa102_mosi_in_use;
#endif
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.
void reset_pin_number(uint8_t pin);
void claim_pin(const mcu_pin_obj_t* pin);
bool pin_number_is_free(uint8_t pin_number);
void never_reset_pin_number(uint8_t pin_number);
// Lower 5 bits of a pin number are the pin number in a port.
// upper bits (just one bit for current chips) is port number.
static inline uint8_t nrf_pin_port(uint8_t absolute_pin) {
return absolute_pin >> 5;
}
static inline uint8_t nrf_relative_pin_number(uint8_t absolute_pin) {
return absolute_pin & 0x1f;
}
#endif // MICROPY_INCLUDED_NRF_COMMON_HAL_MICROCONTROLLER_PIN_H