367 lines
9.6 KiB
C
367 lines
9.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <sys/time.h>
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#include "supervisor/board.h"
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#include "supervisor/port.h"
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#include "modules/module.h"
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#include "py/runtime.h"
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#include "supervisor/esp_port.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "common-hal/microcontroller/Pin.h"
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#include "common-hal/analogio/AnalogOut.h"
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#include "common-hal/busio/I2C.h"
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#include "common-hal/busio/SPI.h"
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#include "common-hal/busio/UART.h"
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#include "common-hal/dualbank/__init__.h"
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#include "common-hal/ps2io/Ps2.h"
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#include "common-hal/pulseio/PulseIn.h"
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#include "common-hal/pwmio/PWMOut.h"
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#include "common-hal/watchdog/WatchDogTimer.h"
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#include "common-hal/socketpool/Socket.h"
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#include "common-hal/wifi/__init__.h"
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#include "supervisor/background_callback.h"
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#include "supervisor/memory.h"
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#include "supervisor/shared/tick.h"
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#include "shared-bindings/rtc/__init__.h"
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#include "peripherals/rmt.h"
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#include "peripherals/timer.h"
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#if CIRCUITPY_COUNTIO || CIRCUITPY_ROTARYIO || CIRCUITPY_FREQUENCYIO
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#include "peripherals/pcnt.h"
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#include "peripherals/touch.h"
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#endif
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#if CIRCUITPY_AUDIOBUSIO
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#include "common-hal/audiobusio/__init__.h"
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#endif
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#if CIRCUITPY_IMAGECAPTURE
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#include "cam.h"
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#endif
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#include "esp_heap_caps.h"
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#include "esp_debug_helpers.h"
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#include "soc/cache_memory.h"
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#include "soc/rtc_cntl_reg.h"
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#ifdef CONFIG_IDF_TARGET_ESP32C3
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#include "components/esp_rom/include/esp32c3/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "components/esp_rom/include/esp32s2/rom/ets_sys.h"
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#endif
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#define HEAP_SIZE (48 * 1024)
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uint32_t *heap;
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uint32_t heap_size;
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STATIC esp_timer_handle_t _tick_timer;
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STATIC esp_timer_handle_t _sleep_timer;
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TaskHandle_t circuitpython_task = NULL;
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extern void esp_restart(void) NORETURN;
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STATIC void tick_timer_cb(void *arg) {
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supervisor_tick();
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// CircuitPython's VM is run in a separate FreeRTOS task from timer callbacks. So, we have to
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// notify the main task every time in case it's waiting for us.
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xTaskNotifyGive(circuitpython_task);
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}
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void sleep_timer_cb(void *arg);
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safe_mode_t port_init(void) {
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esp_timer_create_args_t args;
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args.callback = &tick_timer_cb;
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args.arg = NULL;
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args.dispatch_method = ESP_TIMER_TASK;
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args.name = "CircuitPython Tick";
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esp_timer_create(&args, &_tick_timer);
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args.callback = &sleep_timer_cb;
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args.arg = NULL;
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args.dispatch_method = ESP_TIMER_TASK;
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args.name = "CircuitPython Sleep";
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esp_timer_create(&args, &_sleep_timer);
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circuitpython_task = xTaskGetCurrentTaskHandle();
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// Send the ROM output out of the UART. This includes early logs.
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#ifdef DEBUG
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ets_install_uart_printf();
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#endif
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heap = NULL;
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never_reset_module_internal_pins();
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#ifndef DEBUG
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#define DEBUG (0)
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#endif
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#if DEBUG
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// debug UART
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#ifdef CONFIG_IDF_TARGET_ESP32C3
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common_hal_never_reset_pin(&pin_GPIO20);
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common_hal_never_reset_pin(&pin_GPIO21);
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#elif CONFIG_IDF_TARGET_ESP32S2
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common_hal_never_reset_pin(&pin_GPIO43);
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common_hal_never_reset_pin(&pin_GPIO44);
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#endif
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#endif
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#ifndef ENABLE_JTAG
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#define ENABLE_JTAG (defined(DEBUG) && DEBUG)
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#endif
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#if ENABLE_JTAG
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// JTAG
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#ifdef CONFIG_IDF_TARGET_ESP32C3
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common_hal_never_reset_pin(&pin_GPIO4);
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common_hal_never_reset_pin(&pin_GPIO5);
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common_hal_never_reset_pin(&pin_GPIO6);
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common_hal_never_reset_pin(&pin_GPIO7);
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#elif CONFIG_IDF_TARGET_ESP32S2
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common_hal_never_reset_pin(&pin_GPIO39);
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common_hal_never_reset_pin(&pin_GPIO40);
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common_hal_never_reset_pin(&pin_GPIO41);
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common_hal_never_reset_pin(&pin_GPIO42);
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#endif
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#endif
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#ifdef CONFIG_SPIRAM
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heap = (uint32_t *)(DRAM0_CACHE_ADDRESS_HIGH - CONFIG_SPIRAM_SIZE);
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heap_size = CONFIG_SPIRAM_SIZE / sizeof(uint32_t);
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#endif
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if (heap == NULL) {
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heap = malloc(HEAP_SIZE);
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heap_size = HEAP_SIZE / sizeof(uint32_t);
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}
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if (heap == NULL) {
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return NO_HEAP;
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}
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esp_reset_reason_t reason = esp_reset_reason();
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switch (reason) {
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case ESP_RST_BROWNOUT:
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return BROWNOUT;
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case ESP_RST_PANIC:
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return HARD_CRASH;
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case ESP_RST_INT_WDT:
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case ESP_RST_WDT:
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default:
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break;
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}
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return NO_SAFE_MODE;
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}
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void reset_port(void) {
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#if CIRCUITPY_IMAGECAPTURE
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cam_deinit();
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#endif
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reset_all_pins();
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// A larger delay so the idle task can run and do any IDF cleanup needed.
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vTaskDelay(4);
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#if CIRCUITPY_ANALOGIO
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analogout_reset();
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#endif
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#if CIRCUITPY_AUDIOBUSIO
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i2s_reset();
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#endif
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#if CIRCUITPY_BUSIO
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i2c_reset();
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spi_reset();
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uart_reset();
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#endif
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#if CIRCUITPY_COUNTIO || CIRCUITPY_ROTARYIO || CIRCUITPY_FREQUENCYIO
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peripherals_pcnt_reset();
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#endif
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#if CIRCUITPY_DUALBANK
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dualbank_reset();
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#endif
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#if CIRCUITPY_FREQUENCYIO
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peripherals_timer_reset();
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#endif
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#if CIRCUITPY_PS2IO
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ps2_reset();
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#endif
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#if CIRCUITPY_PULSEIO
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peripherals_rmt_reset();
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pulsein_reset();
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#endif
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#if CIRCUITPY_PWMIO
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pwmout_reset();
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#endif
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#if CIRCUITPY_RTC
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rtc_reset();
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#endif
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#if CIRCUITPY_TOUCHIO_USE_NATIVE
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peripherals_touch_reset();
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#endif
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#if CIRCUITPY_WATCHDOG
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watchdog_reset();
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#endif
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#if CIRCUITPY_WIFI
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wifi_reset();
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#endif
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#if CIRCUITPY_SOCKETPOOL
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socket_reset();
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#endif
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}
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void reset_to_bootloader(void) {
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esp_restart();
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}
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void reset_cpu(void) {
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#ifndef CONFIG_IDF_TARGET_ESP32C3
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esp_backtrace_print(100);
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#endif
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esp_restart();
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}
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uint32_t *port_heap_get_bottom(void) {
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return heap;
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}
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uint32_t *port_heap_get_top(void) {
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return heap + heap_size;
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}
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uint32_t *port_stack_get_limit(void) {
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wcast-align"
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return (uint32_t *)pxTaskGetStackStart(NULL);
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#pragma GCC diagnostic pop
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}
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uint32_t *port_stack_get_top(void) {
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// The sizeof-arithmetic is so that the pointer arithmetic is done on units
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// of uint32_t instead of units of StackType_t. StackType_t is an alias
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// for a byte sized type.
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//
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// The main stack is bigger than CONFIG_ESP_MAIN_TASK_STACK_SIZE -- an
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// "extra" size is added to it (TASK_EXTRA_STACK_SIZE). This total size is
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// available as ESP_TASK_MAIN_STACK. Presumably TASK_EXTRA_STACK_SIZE is
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// additional stack that can be used by the esp-idf runtime. But what's
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// important for us is that some very outermost stack frames, such as
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// pyexec_friendly_repl, could lie inside the "extra" area and be invisible
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// to the garbage collector.
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return port_stack_get_limit() + ESP_TASK_MAIN_STACK / (sizeof(uint32_t) / sizeof(StackType_t));
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}
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bool port_has_fixed_stack(void) {
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return true;
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}
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// Place the word to save just after our BSS section that gets blanked.
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void port_set_saved_word(uint32_t value) {
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REG_WRITE(RTC_CNTL_STORE0_REG, value);
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}
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uint32_t port_get_saved_word(void) {
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return REG_READ(RTC_CNTL_STORE0_REG);
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}
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uint64_t port_get_raw_ticks(uint8_t *subticks) {
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// Convert microseconds to subticks of 1/32768 seconds
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// 32768/1000000 = 64/15625 in lowest terms
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// this arithmetic overflows after 570 years
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int64_t all_subticks = esp_timer_get_time() * 512 / 15625;
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if (subticks != NULL) {
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*subticks = all_subticks % 32;
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}
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return all_subticks / 32;
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}
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// Enable 1/1024 second tick.
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void port_enable_tick(void) {
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esp_timer_start_periodic(_tick_timer, 1000000 / 1024);
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}
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// Disable 1/1024 second tick.
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void port_disable_tick(void) {
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esp_timer_stop(_tick_timer);
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}
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void port_wake_main_task() {
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xTaskNotifyGive(circuitpython_task);
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}
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void sleep_timer_cb(void *arg) {
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port_wake_main_task();
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}
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void port_interrupt_after_ticks(uint32_t ticks) {
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uint64_t timeout_us = ticks * 1000000ull / 1024;
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if (esp_timer_start_once(_sleep_timer, timeout_us) != ESP_OK) {
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esp_timer_stop(_sleep_timer);
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esp_timer_start_once(_sleep_timer, timeout_us);
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}
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}
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// On the ESP we use FreeRTOS notifications instead of interrupts so this is a
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// bit of a misnomer.
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void port_idle_until_interrupt(void) {
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if (!background_callback_pending()) {
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xTaskNotifyWait(0x01, 0x01, NULL, portMAX_DELAY);
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}
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}
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// Wrap main in app_main that the IDF expects.
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extern void main(void);
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extern void app_main(void);
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void app_main(void) {
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main();
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}
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