Jeff Epler
953694d56c
This mostly means changing `void foo()` to `void foo(void)` at the function definition site. This was previously only an error if the declaration site didn't have `(void)`, but the unix coverage build enables the more strict warning and there's little difficulty in resolving these diagnostics. .. other ports can be done too, if desired.
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
// This file is part of the CircuitPython project: https://circuitpython.org
|
|
//
|
|
// SPDX-FileCopyrightText: Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
|
|
//
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
#include "reload.h"
|
|
|
|
#include "py/mphal.h"
|
|
#include "py/mpstate.h"
|
|
#include "supervisor/port.h"
|
|
#include "supervisor/shared/reload.h"
|
|
#include "supervisor/shared/tick.h"
|
|
|
|
#include "shared-bindings/supervisor/Runtime.h"
|
|
|
|
// True if user has disabled autoreload.
|
|
static bool autoreload_enabled = false;
|
|
|
|
// Non-zero if autoreload is temporarily off, due to an AUTORELOAD_SUSPEND_... reason.
|
|
static uint32_t autoreload_suspended = 0;
|
|
|
|
volatile uint32_t last_autoreload_trigger = 0;
|
|
|
|
void reload_initiate(supervisor_run_reason_t run_reason) {
|
|
supervisor_set_run_reason(run_reason);
|
|
|
|
// Raise reload exception, in case code is running.
|
|
MP_STATE_THREAD(mp_pending_exception) = MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception));
|
|
#if MICROPY_ENABLE_SCHEDULER
|
|
if (MP_STATE_VM(sched_state) == MP_SCHED_IDLE) {
|
|
MP_STATE_VM(sched_state) = MP_SCHED_PENDING;
|
|
}
|
|
#endif
|
|
port_wake_main_task();
|
|
}
|
|
|
|
void autoreload_reset(void) {
|
|
last_autoreload_trigger = 0;
|
|
}
|
|
|
|
void autoreload_enable(void) {
|
|
autoreload_enabled = true;
|
|
last_autoreload_trigger = 0;
|
|
}
|
|
|
|
void autoreload_disable(void) {
|
|
autoreload_enabled = false;
|
|
}
|
|
|
|
void autoreload_suspend(uint32_t suspend_reason_mask) {
|
|
autoreload_suspended |= suspend_reason_mask;
|
|
}
|
|
|
|
void autoreload_resume(uint32_t suspend_reason_mask) {
|
|
autoreload_suspended &= ~suspend_reason_mask;
|
|
}
|
|
|
|
inline bool autoreload_is_enabled(void) {
|
|
return autoreload_enabled;
|
|
}
|
|
|
|
void autoreload_trigger(void) {
|
|
if (!autoreload_enabled || autoreload_suspended != 0) {
|
|
return;
|
|
}
|
|
bool reload_initiated = autoreload_pending();
|
|
last_autoreload_trigger = supervisor_ticks_ms32();
|
|
// Guard against the rare time that ticks is 0;
|
|
if (last_autoreload_trigger == 0) {
|
|
last_autoreload_trigger += 1;
|
|
}
|
|
// Initiate a reload of the VM immediately. Later code will pause to
|
|
// wait for the autoreload to become ready. Doing the VM exit
|
|
// immediately is clearer for the user.
|
|
if (!reload_initiated) {
|
|
reload_initiate(RUN_REASON_AUTO_RELOAD);
|
|
}
|
|
}
|
|
|
|
bool autoreload_ready(void) {
|
|
if (last_autoreload_trigger == 0 || autoreload_suspended != 0) {
|
|
return false;
|
|
}
|
|
// Wait for autoreload interval before reloading
|
|
uint32_t now = supervisor_ticks_ms32();
|
|
uint32_t diff;
|
|
if (now >= last_autoreload_trigger) {
|
|
diff = now - last_autoreload_trigger;
|
|
} else {
|
|
diff = now + (0xffffffff - last_autoreload_trigger);
|
|
}
|
|
return diff > CIRCUITPY_AUTORELOAD_DELAY_MS;
|
|
}
|
|
|
|
bool autoreload_pending(void) {
|
|
return last_autoreload_trigger > 0;
|
|
}
|