micropython/ports/esp32/mphalport.h
Jim Mussared 311b8519af esp32: Pin MicroPython and NimBLE tasks to core 0.
MicroPython and NimBLE must be on the same core, for synchronisation of the
BLE ringbuf and the MicroPython scheduler.  However, in the current IDF
versions (3.3 and 4.0) there are issues (see e.g. #5489) with running
NimBLE on core 1.

This change - pinning both tasks to core 0 - makes it possible to reliably
run the BLE multitests on esp32 boards.
2020-09-08 12:53:24 +10:00

104 lines
3.7 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* Development of the code in this file was sponsored by Microbric Pty Ltd
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Damien P. George
*
* 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 INCLUDED_MPHALPORT_H
#define INCLUDED_MPHALPORT_H
#include "py/ringbuf.h"
#include "lib/utils/interrupt_char.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
// The core that the MicroPython task(s) are pinned to.
// Until we move to IDF 4.2+, we need NimBLE on core 0, and for synchronisation
// with the ringbuffer and scheduler MP needs to be on the same core.
// See https://github.com/micropython/micropython/issues/5489
#define MP_TASK_COREID (0)
extern TaskHandle_t mp_main_task_handle;
extern ringbuf_t stdin_ringbuf;
// Check the ESP-IDF error code and raise an OSError if it's not ESP_OK.
void check_esp_err(esp_err_t code);
uint32_t mp_hal_ticks_us(void);
__attribute__((always_inline)) static inline uint32_t mp_hal_ticks_cpu(void) {
uint32_t ccount;
__asm__ __volatile__ ("rsr %0,ccount" : "=a" (ccount));
return ccount;
}
void mp_hal_delay_us(uint32_t);
#define mp_hal_delay_us_fast(us) ets_delay_us(us)
void mp_hal_set_interrupt_char(int c);
uint32_t mp_hal_get_cpu_freq(void);
#define mp_hal_quiet_timing_enter() MICROPY_BEGIN_ATOMIC_SECTION()
#define mp_hal_quiet_timing_exit(irq_state) MICROPY_END_ATOMIC_SECTION(irq_state)
// Wake up the main task if it is sleeping
void mp_hal_wake_main_task_from_isr(void);
// C-level pin HAL
#include "py/obj.h"
#include "driver/gpio.h"
#define MP_HAL_PIN_FMT "%u"
#define mp_hal_pin_obj_t gpio_num_t
mp_hal_pin_obj_t machine_pin_get_id(mp_obj_t pin_in);
#define mp_hal_get_pin_obj(o) machine_pin_get_id(o)
#define mp_obj_get_pin(o) machine_pin_get_id(o) // legacy name; only to support esp8266/modonewire
#define mp_hal_pin_name(p) (p)
static inline void mp_hal_pin_input(mp_hal_pin_obj_t pin) {
gpio_pad_select_gpio(pin);
gpio_set_direction(pin, GPIO_MODE_INPUT);
}
static inline void mp_hal_pin_output(mp_hal_pin_obj_t pin) {
gpio_pad_select_gpio(pin);
gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT);
}
static inline void mp_hal_pin_open_drain(mp_hal_pin_obj_t pin) {
gpio_pad_select_gpio(pin);
gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT_OD);
}
static inline void mp_hal_pin_od_low(mp_hal_pin_obj_t pin) {
gpio_set_level(pin, 0);
}
static inline void mp_hal_pin_od_high(mp_hal_pin_obj_t pin) {
gpio_set_level(pin, 1);
}
static inline int mp_hal_pin_read(mp_hal_pin_obj_t pin) {
return gpio_get_level(pin);
}
static inline void mp_hal_pin_write(mp_hal_pin_obj_t pin, int v) {
gpio_set_level(pin, v);
}
#endif // INCLUDED_MPHALPORT_H