136 lines
4.0 KiB
C
136 lines
4.0 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) 2019 Jeff Epler 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 "supervisor/shared/tick.h"
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#include "py/mpstate.h"
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#include "supervisor/linker.h"
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#include "supervisor/filesystem.h"
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#include "supervisor/port.h"
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#include "supervisor/shared/autoreload.h"
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static volatile uint64_t PLACE_IN_DTCM_BSS(background_ticks);
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#if CIRCUITPY_GAMEPAD
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#include "shared-module/gamepad/__init__.h"
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#endif
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#if CIRCUITPY_GAMEPADSHIFT
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#include "shared-module/gamepadshift/__init__.h"
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#endif
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#include "shared-bindings/microcontroller/__init__.h"
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void supervisor_tick(void) {
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#if CIRCUITPY_FILESYSTEM_FLUSH_INTERVAL_MS > 0
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filesystem_tick();
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#endif
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#ifdef CIRCUITPY_AUTORELOAD_DELAY_MS
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autoreload_tick();
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#endif
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#ifdef CIRCUITPY_GAMEPAD_TICKS
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if (!(port_get_raw_ticks(NULL) & CIRCUITPY_GAMEPAD_TICKS)) {
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#if CIRCUITPY_GAMEPAD
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gamepad_tick();
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#endif
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#if CIRCUITPY_GAMEPADSHIFT
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gamepadshift_tick();
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#endif
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}
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#endif
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}
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uint64_t supervisor_ticks_ms64() {
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uint64_t result;
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common_hal_mcu_disable_interrupts();
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result = port_get_raw_ticks(NULL);
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common_hal_mcu_enable_interrupts();
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result = result * 1000 / 1024;
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return result;
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}
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uint32_t supervisor_ticks_ms32() {
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return supervisor_ticks_ms64();
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}
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extern void run_background_tasks(void);
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void PLACE_IN_ITCM(supervisor_run_background_tasks_if_tick)() {
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uint8_t subticks;
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uint64_t now = port_get_raw_ticks(&subticks);
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if (now == background_ticks && (subticks & 0x3) != 0) {
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return;
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}
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background_ticks = now;
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run_background_tasks();
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}
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void supervisor_fake_tick() {
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uint32_t now = port_get_raw_ticks(NULL);
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background_ticks = (now - 1);
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}
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void mp_hal_delay_ms(mp_uint_t delay) {
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uint64_t start_tick = port_get_raw_ticks(NULL);
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// Adjust the delay to ticks vs ms.
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delay = delay * 1024 / 1000;
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uint64_t duration = 0;
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port_interrupt_after_ticks(delay);
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while (duration < delay) {
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RUN_BACKGROUND_TASKS;
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// Check to see if we've been CTRL-Ced by autoreload or the user.
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if(MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) ||
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MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
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break;
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}
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// Sleep until an interrupt happens.
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port_sleep_until_interrupt();
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// asm("bkpt");
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duration = (port_get_raw_ticks(NULL) - start_tick);
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port_interrupt_after_ticks(duration);
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}
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}
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volatile size_t tick_enable_count = 0;
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extern void supervisor_enable_tick(void) {
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if (tick_enable_count == 0) {
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port_enable_tick();
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}
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tick_enable_count++;
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}
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extern void supervisor_disable_tick(void) {
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if (tick_enable_count > 0) {
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tick_enable_count--;
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}
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if (tick_enable_count == 0) {
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port_disable_tick();
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}
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}
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