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LibrePilot/flight/modules/Fault/Fault.c
2014-06-11 22:15:40 +02:00

143 lines
4.0 KiB
C

/**
******************************************************************************
* @addtogroup OpenPilotModules OpenPilot Modules
* @{
* @addtogroup FaultModule Fault Module
* @brief Insert various fault conditions for testing
* @{
*
* @file Fault.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Fault module, inserts faults for testing
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// ****************
#include "openpilot.h"
#include <stdbool.h>
#include "hwsettings.h"
#include "faultsettings.h"
static bool module_enabled;
static uint8_t active_fault;
static int32_t fault_initialize(void)
{
#ifdef MODULE_FAULT_BUILTIN
module_enabled = true;
#else
HwSettingsInitialize();
uint8_t optionalModules[HWSETTINGS_OPTIONALMODULES_NUMELEM];
HwSettingsOptionalModulesGet(optionalModules);
if (optionalModules[HWSETTINGS_OPTIONALMODULES_FAULT] == HWSETTINGS_OPTIONALMODULES_ENABLED) {
module_enabled = true;
} else {
module_enabled = false;
}
#endif
/* Do this outside the module_enabled test so that it
* can be changed even when the module has been disabled.
* This is important so we can remove faults even when
* we've booted in BootFault recovery mode with all optional
* modules disabled.
*/
FaultSettingsInitialize();
if (module_enabled) {
FaultSettingsActivateFaultGet(&active_fault);
switch (active_fault) {
case FAULTSETTINGS_ACTIVATEFAULT_MODULEINITASSERT:
/* Simulate an assert during module init */
PIOS_Assert(0);
break;
case FAULTSETTINGS_ACTIVATEFAULT_INITOUTOFMEMORY:
/* Leak all available memory */
while (pios_malloc(10)) {
;
}
break;
case FAULTSETTINGS_ACTIVATEFAULT_INITBUSERROR:
{
/* Force a bad access */
uint32_t *bad_ptr = (uint32_t *)0xFFFFFFFF;
*bad_ptr = 0xAA55AA55;
}
break;
}
}
return 0;
}
static void fault_task(void *parameters);
static int32_t fault_start(void)
{
xTaskHandle fault_task_handle;
if (module_enabled) {
switch (active_fault) {
case FAULTSETTINGS_ACTIVATEFAULT_RUNAWAYTASK:
case FAULTSETTINGS_ACTIVATEFAULT_TASKOUTOFMEMORY:
xTaskCreate(fault_task,
(signed char *)"Fault",
configMINIMAL_STACK_SIZE,
NULL,
configMAX_PRIORITIES - 1,
&fault_task_handle);
return 0;
break;
}
}
return -1;
}
MODULE_INITCALL(fault_initialize, fault_start);
static void fault_task(__attribute__((unused)) void *parameters)
{
switch (active_fault) {
case FAULTSETTINGS_ACTIVATEFAULT_RUNAWAYTASK:
/* Consume all realtime, not letting the systemtask run */
while (1) {
;
}
break;
case FAULTSETTINGS_ACTIVATEFAULT_TASKOUTOFMEMORY:
/* Leak all available memory and then sleep */
while (pios_malloc(10)) {
;
}
while (1) {
vTaskDelay(1000);
}
break;
}
}
/**
* @}
* @}
*/