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micropython/ports/esp32/main.c

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/*
* 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) 2016 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.
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_task.h"
#include "soc/cpu.h"
#include "esp_log.h"
#if CONFIG_IDF_TARGET_ESP32
#include "esp32/spiram.h"
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/spiram.h"
#elif CONFIG_IDF_TARGET_ESP32S3
#include "esp32s3/spiram.h"
#endif
#include "py/stackctrl.h"
#include "py/nlr.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/persistentcode.h"
#include "py/repl.h"
#include "py/gc.h"
#include "py/mphal.h"
#include "shared/readline/readline.h"
#include "shared/runtime/pyexec.h"
#include "uart.h"
#include "usb.h"
#include "usb_serial_jtag.h"
#include "modmachine.h"
#include "modnetwork.h"
#include "mpthreadport.h"
#if MICROPY_BLUETOOTH_NIMBLE
#include "extmod/modbluetooth.h"
#endif
// MicroPython runs as a task under FreeRTOS
#define MP_TASK_PRIORITY (ESP_TASK_PRIO_MIN + 1)
#define MP_TASK_STACK_SIZE (16 * 1024)
// Set the margin for detecting stack overflow, depending on the CPU architecture.
#if CONFIG_IDF_TARGET_ESP32C3
#define MP_TASK_STACK_LIMIT_MARGIN (2048)
#else
#define MP_TASK_STACK_LIMIT_MARGIN (1024)
#endif
int vprintf_null(const char *format, va_list ap) {
// do nothing: this is used as a log target during raw repl mode
return 0;
}
void mp_task(void *pvParameter) {
volatile uint32_t sp = (uint32_t)get_sp();
#if MICROPY_PY_THREAD
mp_thread_init(pxTaskGetStackStart(NULL), MP_TASK_STACK_SIZE / sizeof(uintptr_t));
#endif
#if CONFIG_USB_ENABLED
usb_init();
#elif CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
usb_serial_jtag_init();
#endif
#if MICROPY_HW_ENABLE_UART_REPL
uart_stdout_init();
#endif
machine_init();
size_t mp_task_heap_size;
void *mp_task_heap = NULL;
#if CONFIG_SPIRAM_USE_MALLOC
// SPIRAM is issued using MALLOC, fallback to normal allocation rules
mp_task_heap = NULL;
#elif CONFIG_ESP32_SPIRAM_SUPPORT
// Try to use the entire external SPIRAM directly for the heap
mp_task_heap = (void *)SOC_EXTRAM_DATA_LOW;
switch (esp_spiram_get_chip_size()) {
case ESP_SPIRAM_SIZE_16MBITS:
mp_task_heap_size = 2 * 1024 * 1024;
break;
case ESP_SPIRAM_SIZE_32MBITS:
case ESP_SPIRAM_SIZE_64MBITS:
mp_task_heap_size = 4 * 1024 * 1024;
break;
default:
// No SPIRAM, fallback to normal allocation
mp_task_heap = NULL;
break;
}
#elif CONFIG_ESP32S2_SPIRAM_SUPPORT || CONFIG_ESP32S3_SPIRAM_SUPPORT
// Try to use the entire external SPIRAM directly for the heap
size_t esp_spiram_size = esp_spiram_get_size();
if (esp_spiram_size > 0) {
mp_task_heap = (void *)SOC_EXTRAM_DATA_HIGH - esp_spiram_size;
mp_task_heap_size = esp_spiram_size;
}
#endif
if (mp_task_heap == NULL) {
// Allocate the uPy heap using malloc and get the largest available region,
// limiting to 1/2 total available memory to leave memory for the OS.
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 1, 0)
size_t heap_total = heap_caps_get_total_size(MALLOC_CAP_8BIT);
#else
multi_heap_info_t info;
heap_caps_get_info(&info, MALLOC_CAP_8BIT);
size_t heap_total = info.total_free_bytes + info.total_allocated_bytes;
#endif
mp_task_heap_size = MIN(heap_caps_get_largest_free_block(MALLOC_CAP_8BIT), heap_total / 2);
mp_task_heap = malloc(mp_task_heap_size);
}
soft_reset:
// initialise the stack pointer for the main thread
mp_stack_set_top((void *)sp);
mp_stack_set_limit(MP_TASK_STACK_SIZE - MP_TASK_STACK_LIMIT_MARGIN);
gc_init(mp_task_heap, mp_task_heap + mp_task_heap_size);
mp_init();
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
readline_init0();
MP_STATE_PORT(native_code_pointers) = MP_OBJ_NULL;
// initialise peripherals
machine_pins_init();
#if MICROPY_PY_MACHINE_I2S
machine_i2s_init0();
#endif
// run boot-up scripts
pyexec_frozen_module("_boot.py");
pyexec_file_if_exists("boot.py");
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL) {
int ret = pyexec_file_if_exists("main.py");
if (ret & PYEXEC_FORCED_EXIT) {
goto soft_reset_exit;
}
}
for (;;) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
vprintf_like_t vprintf_log = esp_log_set_vprintf(vprintf_null);
if (pyexec_raw_repl() != 0) {
break;
}
esp_log_set_vprintf(vprintf_log);
} else {
if (pyexec_friendly_repl() != 0) {
break;
}
}
}
soft_reset_exit:
#if MICROPY_BLUETOOTH_NIMBLE
mp_bluetooth_deinit();
#endif
machine_timer_deinit_all();
#if MICROPY_PY_THREAD
mp_thread_deinit();
#endif
// Free any native code pointers that point to iRAM.
if (MP_STATE_PORT(native_code_pointers) != MP_OBJ_NULL) {
size_t len;
mp_obj_t *items;
mp_obj_list_get(MP_STATE_PORT(native_code_pointers), &len, &items);
for (size_t i = 0; i < len; ++i) {
heap_caps_free(MP_OBJ_TO_PTR(items[i]));
}
}
gc_sweep_all();
mp_hal_stdout_tx_str("MPY: soft reboot\r\n");
// deinitialise peripherals
machine_pwm_deinit_all();
// TODO: machine_rmt_deinit_all();
machine_pins_deinit();
machine_deinit();
#if MICROPY_PY_USOCKET_EVENTS
usocket_events_deinit();
#endif
mp_deinit();
fflush(stdout);
goto soft_reset;
}
void boardctrl_startup(void) {
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
nvs_flash_erase();
nvs_flash_init();
}
}
void app_main(void) {
// Hook for a board to run code at start up.
// This defaults to initialising NVS.
MICROPY_BOARD_STARTUP();
// Create and transfer control to the MicroPython task.
xTaskCreatePinnedToCore(mp_task, "mp_task", MP_TASK_STACK_SIZE / sizeof(StackType_t), NULL, MP_TASK_PRIORITY, &mp_main_task_handle, MP_TASK_COREID);
}
void nlr_jump_fail(void *val) {
printf("NLR jump failed, val=%p\n", val);
esp_restart();
}
// modussl_mbedtls uses this function but it's not enabled in ESP IDF
void mbedtls_debug_set_threshold(int threshold) {
(void)threshold;
}
void *esp_native_code_commit(void *buf, size_t len, void *reloc) {
len = (len + 3) & ~3;
uint32_t *p = heap_caps_malloc(len, MALLOC_CAP_EXEC);
if (p == NULL) {
m_malloc_fail(len);
}
if (MP_STATE_PORT(native_code_pointers) == MP_OBJ_NULL) {
MP_STATE_PORT(native_code_pointers) = mp_obj_new_list(0, NULL);
}
mp_obj_list_append(MP_STATE_PORT(native_code_pointers), MP_OBJ_TO_PTR(p));
if (reloc) {
mp_native_relocate(reloc, buf, (uintptr_t)p);
}
memcpy(p, buf, len);
return p;
}
MP_REGISTER_ROOT_POINTER(mp_obj_t native_code_pointers);
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