circuitpython/supervisor/shared/tick.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Jeff Epler for Adafruit Industries
*
* 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 "supervisor/shared/tick.h"
#include "supervisor/linker.h"
#include "supervisor/filesystem.h"
#include "supervisor/shared/autoreload.h"
static volatile uint64_t PLACE_IN_DTCM_BSS(ticks_ms);
static volatile uint32_t PLACE_IN_DTCM_BSS(background_ticks_ms32);
#if CIRCUITPY_GAMEPAD
#include "shared-module/gamepad/__init__.h"
#endif
#if CIRCUITPY_GAMEPADSHIFT
#include "shared-module/gamepadshift/__init__.h"
#endif
#include "shared-bindings/microcontroller/__init__.h"
void supervisor_tick(void) {
ticks_ms ++;
#if CIRCUITPY_FILESYSTEM_FLUSH_INTERVAL_MS > 0
filesystem_tick();
#endif
#ifdef CIRCUITPY_AUTORELOAD_DELAY_MS
autoreload_tick();
#endif
#ifdef CIRCUITPY_GAMEPAD_TICKS
if (!(ticks_ms & CIRCUITPY_GAMEPAD_TICKS)) {
#if CIRCUITPY_GAMEPAD
gamepad_tick();
#endif
#if CIRCUITPY_GAMEPADSHIFT
gamepadshift_tick();
#endif
}
#endif
}
uint64_t supervisor_ticks_ms64() {
uint64_t result;
common_hal_mcu_disable_interrupts();
result = ticks_ms;
common_hal_mcu_enable_interrupts();
return result;
}
uint32_t supervisor_ticks_ms32() {
return ticks_ms;
}
extern void run_background_tasks(void);
void PLACE_IN_ITCM(supervisor_run_background_tasks_if_tick)() {
uint32_t now32 = ticks_ms;
if (now32 == background_ticks_ms32) {
return;
}
background_ticks_ms32 = now32;
run_background_tasks();
}
void supervisor_fake_tick() {
uint32_t now32 = ticks_ms;
background_ticks_ms32 = (now32 - 1);
}