micropython/ports/mcx/mphalport.h

80 wiersze
2.6 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2024 NXP
*
* 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 MP_PORT_MCX_MPHALPORT_H
#define MP_PORT_MCX_MPHALPORT_H
void mp_hal_init(void);
/* UUID*/
void mp_hal_get_unique_id(uint8_t *uid);
/* STDIO */
int mp_hal_stdio_init(void);
/* Pin */
#include "hal_pin.h"
static inline void enable_irq(mp_uint_t state) {
__set_PRIMASK(state);
}
static inline mp_uint_t disable_irq(void) {
mp_uint_t state = __get_PRIMASK();
__disable_irq();
return state;
}
static inline uint32_t raise_irq_pri(uint32_t pri) {
uint32_t basepri = __get_BASEPRI();
// If non-zero, the processor does not process any exception with a
// priority value greater than or equal to BASEPRI.
// When writing to BASEPRI_MAX the write goes to BASEPRI only if either:
// - Rn is non-zero and the current BASEPRI value is 0
// - Rn is non-zero and less than the current BASEPRI value
pri <<= (8 - __NVIC_PRIO_BITS);
__ASM volatile ("msr basepri_max, %0" : : "r" (pri) : "memory");
return basepri;
}
// "basepri" should be the value returned from raise_irq_pri
static inline void restore_irq_pri(uint32_t basepri) {
__set_BASEPRI(basepri);
}
#define mp_hal_quiet_timing_enter() raise_irq_pri(1)
#define mp_hal_quiet_timing_exit(irq_state) restore_irq_pri(irq_state)
/* Additional delay */
#define mp_hal_delay_us_fast mp_hal_delay_us
extern int mp_interrupt_char;
static inline void mp_hal_set_interrupt_char(char c) {
mp_interrupt_char = c;
}
#endif