Browse Source
This code is shared by most parts, except where not all the #ifdefs inside the tick function were present in all ports. This mostly would have broken gamepad tick support on non-samd ports. The "ms32" and "ms64" variants of the tick functions are introduced because there is no 64-bit atomic read. Disabling interrupts avoids a low probability bug where milliseconds could be off by ~49.5 days once every ~49.5 days (2^32 ms). Avoiding disabling interrupts when only the low 32 bits are needed is a minor optimization. Testing performed: on metro m4 express, USB still works and time.monotonic_ns() still counts upcrypto-aes
Jeff Epler
3 years ago
37 changed files with 214 additions and 163 deletions
@ -0,0 +1,76 @@
|
||||
/*
|
||||
* 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/filesystem.h" |
||||
#include "supervisor/shared/autoreload.h" |
||||
|
||||
static volatile uint64_t ticks_ms; |
||||
|
||||
#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; |
||||
} |
||||
@ -0,0 +1,37 @@
|
||||
/*
|
||||
* 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. |
||||
*/ |
||||
|
||||
#ifndef __INCLUDED_SUPERVISOR_TICK_H |
||||
#define __INCLUDED_SUPERVISOR_TICK_H |
||||
|
||||
#include <stdint.h> |
||||
#include <stdatomic.h> |
||||
|
||||
extern void supervisor_tick(void); |
||||
extern uint32_t supervisor_ticks_ms32(void); |
||||
extern uint64_t supervisor_ticks_ms64(void); |
||||
|
||||
#endif |
||||
Loading…
Reference in new issue