esp-idf/components/esp_system/esp_system.c

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2021-03-10 20:48:30 -05:00
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_system.h"
#include "esp_private/system_internal.h"
#include "esp_heap_caps.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "soc/cpu.h"
#include "soc/rtc.h"
#include "soc/rtc_cntl_reg.h"
#include "esp_private/panic_internal.h"
#include "esp_rom_uart.h"
#if CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/memprot.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
#include "esp32s3/memprot.h"
#elif CONFIG_IDF_TARGET_ESP32C3
#include "esp32c3/memprot.h"
#elif CONFIG_IDF_TARGET_ESP32H2
#include "esp32h2/memprot.h"
#endif
#define SHUTDOWN_HANDLERS_NO 5
static shutdown_handler_t shutdown_handlers[SHUTDOWN_HANDLERS_NO];
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void IRAM_ATTR esp_restart_noos_dig(void)
{
// make sure all the panic handler output is sent from UART FIFO
if (CONFIG_ESP_CONSOLE_UART_NUM >= 0) {
esp_rom_uart_tx_wait_idle(CONFIG_ESP_CONSOLE_UART_NUM);
}
// switch to XTAL (otherwise we will keep running from the PLL)
rtc_clk_cpu_freq_set_xtal();
#if CONFIG_IDF_TARGET_ESP32
esp_cpu_unstall(PRO_CPU_NUM);
#endif
// reset the digital part
SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_SW_SYS_RST);
while (true) {
;
}
}
esp_err_t esp_register_shutdown_handler(shutdown_handler_t handler)
{
for (int i = 0; i < SHUTDOWN_HANDLERS_NO; i++) {
if (shutdown_handlers[i] == handler) {
return ESP_ERR_INVALID_STATE;
} else if (shutdown_handlers[i] == NULL) {
shutdown_handlers[i] = handler;
return ESP_OK;
}
}
return ESP_ERR_NO_MEM;
}
esp_err_t esp_unregister_shutdown_handler(shutdown_handler_t handler)
{
for (int i = 0; i < SHUTDOWN_HANDLERS_NO; i++) {
if (shutdown_handlers[i] == handler) {
shutdown_handlers[i] = NULL;
return ESP_OK;
}
}
return ESP_ERR_INVALID_STATE;
}
void IRAM_ATTR esp_restart(void)
{
for (int i = SHUTDOWN_HANDLERS_NO - 1; i >= 0; i--) {
if (shutdown_handlers[i]) {
shutdown_handlers[i]();
}
}
// Disable scheduler on this core.
vTaskSuspendAll();
bool digital_reset_needed = false;
#if CONFIG_ESP_SYSTEM_CONFIG_MEMPROT_FEATURE
if (esp_memprot_is_intr_ena_any() || esp_memprot_is_locked_any()) {
digital_reset_needed = true;
}
#endif
if (digital_reset_needed) {
esp_restart_noos_dig();
}
esp_restart_noos();
}
uint32_t esp_get_free_heap_size( void )
{
return heap_caps_get_free_size( MALLOC_CAP_DEFAULT );
}
uint32_t esp_get_free_internal_heap_size( void )
{
return heap_caps_get_free_size( MALLOC_CAP_8BIT | MALLOC_CAP_DMA | MALLOC_CAP_INTERNAL );
}
uint32_t esp_get_minimum_free_heap_size( void )
{
return heap_caps_get_minimum_free_size( MALLOC_CAP_DEFAULT );
}
const char *esp_get_idf_version(void)
{
return IDF_VER;
}
void __attribute__((noreturn)) esp_system_abort(const char *details)
{
panic_abort(details);
}