circuitpython/ports/silabs/common-hal/watchdog/WatchDogTimer.c
Scott Shawcroft 792def24f3
A few silabs improvements
* Fix watchdog code crash.
* Define status LEDs for all boards.
* Add flash target to Makefile.
* Reduce build verbosity.
2023-10-17 11:10:03 -07:00

137 lines
4.3 KiB
C

/*
* This file is part of Adafruit for EFR32 project
*
* The MIT License (MIT)
*
* Copyright 2023 Silicon Laboratories Inc. www.silabs.com
*
* 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 "py/runtime.h"
#include "common-hal/watchdog/WatchDogTimer.h"
#include "shared-bindings/watchdog/__init__.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "em_wdog.h"
#include "em_cmu.h"
static bool _wdt_init = false;
void common_hal_watchdog_feed(watchdog_watchdogtimer_obj_t *self) {
WDOGn_Feed(DEFAULT_WDOG);
}
void common_hal_watchdog_deinit(watchdog_watchdogtimer_obj_t *self) {
if (!_wdt_init) {
return;
}
WDOG_Enable(false);
}
mp_float_t common_hal_watchdog_get_timeout(watchdog_watchdogtimer_obj_t *self) {
return self->timeout;
}
void common_hal_watchdog_set_timeout(watchdog_watchdogtimer_obj_t *self,
mp_float_t new_timeout) {
// Max timeout is 256000 ms
uint64_t timeout = new_timeout * 1000;
mp_arg_validate_int_max(timeout, 256000, MP_QSTR_WatchDogTimeout);
if ((uint32_t)self->timeout != (uint32_t)new_timeout) {
// Watchdog Initialize settings
WDOG_Init_TypeDef wdogInit = WDOG_INIT_DEFAULT;
switch ((uint32_t)new_timeout)
{
case 1:
wdogInit.perSel = wdogPeriod_1k;
break;
case 2:
wdogInit.perSel = wdogPeriod_2k;
break;
case 4:
wdogInit.perSel = wdogPeriod_4k;
break;
case 8:
wdogInit.perSel = wdogPeriod_8k;
break;
case 16:
wdogInit.perSel = wdogPeriod_16k;
break;
case 32:
wdogInit.perSel = wdogPeriod_32k;
break;
case 64:
wdogInit.perSel = wdogPeriod_64k;
break;
case 128:
wdogInit.perSel = wdogPeriod_128k;
break;
case 256:
wdogInit.perSel = wdogPeriod_256k;
break;
default:
mp_raise_ValueError(
translate("Timeout value supported: 1,2,4,8,16,32,64,128,256"));
}
self->timeout = new_timeout;
// Enable clock for the WDOG module; has no effect on xG21
CMU_ClockEnable(cmuClock_WDOG0, true);
// ULFRCO as clock source
CMU_ClockSelectSet(cmuClock_WDOG0, cmuSelect_ULFRCO);
wdogInit.em1Run = true;
wdogInit.em2Run = true;
wdogInit.em3Run = true;
// Initializing watchdog with chosen settings
WDOGn_Init(DEFAULT_WDOG, &wdogInit);
_wdt_init = true;
}
}
watchdog_watchdogmode_t common_hal_watchdog_get_mode
(watchdog_watchdogtimer_obj_t *self) {
return self->mode;
}
void common_hal_watchdog_set_mode(watchdog_watchdogtimer_obj_t *self,
watchdog_watchdogmode_t new_mode) {
if (self->mode != new_mode) {
if (new_mode == WATCHDOGMODE_RAISE) {
mp_raise_NotImplementedError(
translate("RAISE mode is not implemented"));
} else if (new_mode == WATCHDOGMODE_NONE) {
self->mode = WATCHDOGMODE_NONE;
common_hal_watchdog_deinit(self);
}
self->mode = new_mode;
common_hal_watchdog_set_timeout(self, self->timeout);
}
}