102 lines
2.9 KiB
C
102 lines
2.9 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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*
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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 "background.h"
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#include "audio_dma.h"
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#include "tick.h"
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#include "supervisor/filesystem.h"
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#include "supervisor/shared/tick.h"
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#include "supervisor/usb.h"
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#include "py/runtime.h"
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#include "shared-module/network/__init__.h"
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#include "supervisor/shared/stack.h"
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#ifdef CIRCUITPY_DISPLAYIO
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#include "shared-module/displayio/__init__.h"
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#endif
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volatile uint64_t last_finished_tick = 0;
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bool stack_ok_so_far = true;
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static bool running_background_tasks = false;
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#ifdef MONITOR_BACKGROUND_TASKS
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// PB03 is physical pin "SCL" on the Metro M4 express
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// so you can't use this code AND an i2c peripheral
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// at the same time unless you change this
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STATIC void start_background_task(void) {
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REG_PORT_DIRSET1 = (1<<3);
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REG_PORT_OUTSET1 = (1<<3);
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}
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STATIC void finish_background_task(void) {
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REG_PORT_OUTCLR1 = (1<<3);
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}
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#else
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STATIC void start_background_task(void) {}
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STATIC void finish_background_task(void) {}
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#endif
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void background_tasks_reset(void) {
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running_background_tasks = false;
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}
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void run_background_tasks(void) {
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// Don't call ourselves recursively.
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if (running_background_tasks) {
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return;
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}
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start_background_task();
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assert_heap_ok();
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running_background_tasks = true;
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#if CIRCUITPY_AUDIOIO || CIRCUITPY_AUDIOBUSIO
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audio_dma_background();
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#endif
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#if CIRCUITPY_DISPLAYIO
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displayio_background();
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#endif
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#if CIRCUITPY_NETWORK
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network_module_background();
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#endif
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filesystem_background();
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usb_background();
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running_background_tasks = false;
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assert_heap_ok();
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last_finished_tick = supervisor_ticks_ms64();
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finish_background_task();
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}
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bool background_tasks_ok(void) {
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return supervisor_ticks_ms64() - last_finished_tick < 1000;
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}
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