def disarm(self):
"""
Disarm the hardware watchdog
Returns:
A boolean, True if watchdog is disarmed successfully, False
if not
"""
if self.is_armed():
# Disable WD
io_reg_write(self.io_resource, self.wd_status_offset,
self.wd_disable)
self.armed_time = 0
self.timeout = 0
return True
return False
def set_status_led(self, color):
"""
Set system LED status based on the color type passed in the argument.
Argument: Color to be set
Returns:
bool: True is specified color is set, Otherwise return False
"""
if color not in list(self.SYSLED_COLOR_TO_REG.keys()):
return False
if(not hwaccess.io_reg_write(self.io_res, self.sysled_offset, self.SYSLED_COLOR_TO_REG[color])):
return False
self.sys_ledcolor = color
return True
def arm(self, seconds):
"""
Arm the hardware watchdog with a timeout of <seconds> seconds.
If the watchdog is currently armed, calling this function will
simply reset the timer to the provided value. If the underlying
hardware does not support the value provided in <seconds>, this
method should arm the watchdog with the *next greater*
available value.
Returns:
An integer specifying the *actual* number of seconds the
watchdog was armed with. On failure returns -1.
"""
timer_offset = -1
for key, timer_seconds in enumerate(self.TIMERS):
if seconds > 0 and seconds <= timer_seconds:
timer_offset = key
seconds = timer_seconds
break
if timer_offset == -1:
return -1
wd_timer_val = io_reg_read(self.io_resource, self.wd_timer_offset)
if wd_timer_val != timer_offset:
self.disarm()
io_reg_write(self.io_resource, self.wd_timer_offset, timer_offset)
if self.is_armed():
# Setting the WD timer punch
io_reg_write(self.io_resource, self.wd_timer_punch_offset,
self.wd_punch_enable)
self.armed_time = self._get_time()
self.timeout = seconds
return seconds
else:
# Enable WD
io_reg_write(self.io_resource, self.wd_status_offset,
self.wd_enable)
self.armed_time = self._get_time()
self.timeout = seconds
return seconds
