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mphalport.h
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mphalport.h
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
* Copyright (c) 2020 Jim Mussared
*
* 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_MIMXRT_MPHALPORT_H
#define MICROPY_INCLUDED_MIMXRT_MPHALPORT_H
#include <stdint.h>
#include "ticks.h"
#include "py/ringbuf.h"
#include "pin.h"
#include "irq.h"
#include "fsl_clock.h"
#define MICROPY_HAL_VERSION "2.8.0"
#define MICROPY_BEGIN_ATOMIC_SECTION() disable_irq()
#define MICROPY_END_ATOMIC_SECTION(state) enable_irq(state)
// For regular code that wants to prevent "background tasks" from running.
// These background tasks (LWIP, Bluetooth) run in PENDSV context.
// TODO: Check for the settings of the STM32 port in irq.h
#define NVIC_PRIORITYGROUP_4 ((uint32_t)0x00000003)
#define IRQ_PRI_PENDSV NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 15, 0)
#define MICROPY_PY_PENDSV_ENTER uint32_t atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
#define MICROPY_PY_PENDSV_REENTER atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
#define MICROPY_PY_PENDSV_EXIT restore_irq_pri(atomic_state);
#define MICROPY_HW_USB_CDC_TX_TIMEOUT (500)
#define MP_HAL_PIN_FMT "%q"
#define MP_HAL_PIN_MODE_INPUT PIN_MODE_IN
#define MP_HAL_PIN_MODE_OUTPUT PIN_MODE_OUT
#define MP_HAL_PIN_MODE_ALT PIN_MODE_ALT
#define MP_HAL_PIN_MODE_OPEN_DRAIN PIN_MODE_OPEN_DRAIN
#define MP_HAL_PIN_PULL_NONE PIN_PULL_DISABLED
#define MP_HAL_PIN_PULL_UP PIN_PULL_UP_100K
#define MP_HAL_PIN_PULL_DOWN PIN_PULL_DOWN_100K
#define MP_HAL_PIN_SPEED_LOW (0)
#define MP_HAL_PIN_SPEED_MEDIUM (1)
#define MP_HAL_PIN_SPEED_HIGH (2)
#define MP_HAL_PIN_SPEED_VERY_HIGH (3)
#define MP_HAL_PIN_TRIGGER_NONE kGPIO_NoIntmode
#define MP_HAL_PIN_TRIGGER_FALL kGPIO_IntFallingEdge
#define MP_HAL_PIN_TRIGGER_RISE kGPIO_IntRisingEdge
#define MP_HAL_PIN_TRIGGER_RISE_FALL kGPIO_IntRisingOrFallingEdge
extern ringbuf_t stdin_ringbuf;
// Define an alias for systick_ms, because the shared softtimer.c uses
// the symbol uwTick for the systick ms counter.
#define uwTick systick_ms
#define mp_hal_pin_obj_t const machine_pin_obj_t *
#define mp_hal_get_pin_obj(o) pin_find(o)
#define mp_hal_pin_name(p) ((p)->name)
#define mp_hal_pin_input(p) machine_pin_set_mode(p, PIN_MODE_IN);
#define mp_hal_pin_output(p) machine_pin_set_mode(p, PIN_MODE_OUT);
#define mp_hal_pin_open_drain(p) machine_pin_set_mode(p, PIN_MODE_OPEN_DRAIN);
#define mp_hal_pin_high(p) (p->gpio->DR_SET = 1 << p->pin)
#define mp_hal_pin_low(p) (p->gpio->DR_CLEAR = 1 << p->pin)
#define mp_hal_pin_write(p, value) (GPIO_PinWrite(p->gpio, p->pin, value))
#define mp_hal_pin_toggle(p) (GPIO_PortToggle(p->gpio, (1 << p->pin)))
#define mp_hal_pin_read(p) (GPIO_PinReadPadStatus(p->gpio, p->pin))
#define mp_hal_pin_od_low(p) mp_hal_pin_low(p)
#define mp_hal_pin_od_high(p) mp_hal_pin_high(p)
#define mp_hal_quiet_timing_enter() raise_irq_pri(1)
#define mp_hal_quiet_timing_exit(irq_state) restore_irq_pri(irq_state)
__attribute__((always_inline)) static inline void enable_irq(uint32_t state) {
__set_PRIMASK(state);
}
__attribute__((always_inline)) static inline uint32_t disable_irq(void) {
uint32_t state = __get_PRIMASK();
__disable_irq();
return state;
}
void mp_hal_set_interrupt_char(int c);
static inline mp_uint_t mp_hal_ticks_ms(void) {
return ticks_ms32();
}
static inline mp_uint_t mp_hal_ticks_us(void) {
return ticks_us32();
}
static inline void mp_hal_delay_ms(mp_uint_t ms) {
uint64_t us = (uint64_t)ms * 1000;
ticks_delay_us64(us);
}
static inline void mp_hal_delay_us(mp_uint_t us) {
ticks_delay_us64(us);
}
#define mp_hal_delay_us_fast(us) mp_hal_delay_us(us)
static inline void mp_hal_ticks_cpu_enable(void) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->LAR = 0xc5acce55;
DWT->CYCCNT = 0;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
}
static inline mp_uint_t mp_hal_ticks_cpu(void) {
return DWT->CYCCNT;
}
static inline mp_uint_t mp_hal_get_cpu_freq(void) {
return CLOCK_GetCpuClkFreq();
}
enum {
MP_HAL_MAC_WLAN0 = 0,
MP_HAL_MAC_WLAN1,
MP_HAL_MAC_BDADDR,
MP_HAL_MAC_ETH0,
MP_HAL_MAC_ETH1,
};
void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]);
void mp_hal_get_mac(int idx, uint8_t buf[6]);
void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest);
void mp_hal_get_unique_id(uint8_t id[]);
#endif // MICROPY_INCLUDED_MIMXRT_MPHALPORT_H