def main():
default_fan_config = '''#Fan Control Matrix. [<Temp in C>,<Fanspeed in %>]
speed_matrix:
- [0, 0]
- [30, 33]
- [45, 50]
- [60, 66]
- [65, 69]
- [70, 75]
- [75, 89]
- [80, 100]
# optional
# cards: # can be any card returned from `ls /sys/class/drm | grep "^card[[:digit:]]$"`
# - card0
'''
config = None
for location in CONFIG_LOCATIONS:
if os.path.isfile(location):
config = load_config(location)
break
if config is None:
logger.info(f'no config found, creating one in {CONFIG_LOCATIONS[-1]}')
with open(CONFIG_LOCATIONS[-1], 'w') as f:
f.write(default_fan_config)
f.flush()
config = load_config(CONFIG_LOCATIONS[-1])
FanController(config).main()
def _verify_card(self):
for endpoint in ('temp1_input', 'pwm1_max', 'pwm1_min', 'pwm1_enable',
'pwm1'):
if endpoint not in self._endpoints:
logger.info('skipping card: %s as its missing endpoint %s',
self._identifier, endpoint)
raise FileNotFoundError
def __init__(self, config):
self._scanner = Scanner(config.get('cards'))
if len(self._scanner.cards) < 1:
logger.error('no compatible cards found, exiting')
sys.exit(1)
self.curve = Curve(config.get('speed_matrix'))
self._frequency = 1
def write_endpoint(self, endpoint, data):
try:
with open(self._endpoints[endpoint], 'w') as e:
return e.write(str(data))
except PermissionError:
logger.error('Failed writing to devfs file, are you sure your running as root?')
sys.exit(1)
def main(self):
logger.info(f'starting amdgpu-fan')
speed_by_card = {}
while True:
for name, card in self._scanner.cards.items():
current_speed = speed_by_card.get(name)
# Reset current speed if it is off for more than 10%
if current_speed is not None and abs(current_speed -
card.fan_speed) > 10:
current_speed = None
temp = card.gpu_temp
speed = max(0, int(self.curve.get_speed(int(temp))))
if current_speed is not None and current_speed >= speed:
speed = max(
0,
int(self.curve.get_speed(int(temp) + self.temp_drop)))
if current_speed <= speed:
continue
logger.debug(
f'{name}: Temp {temp}, Setting fan speed to: {speed}, fan speed: {card.fan_speed}, min: {card.fan_min}, max: {card.fan_max}'
)
card.set_fan_speed(speed)
speed_by_card[name] = speed
time.sleep(self._interval)
def __init__(self, config):
self._scanner = Scanner(config.get('cards'))
if len(self._scanner.cards) < 1:
logger.error('no compatible cards found, exiting')
sys.exit(1)
speed_matrix = config.get('speed_matrix')
self.temp_drop = config.get('temp_drop', 5)
self.curve = Curve(speed_matrix)
self._frequency = 1
self._interval = 1 / self._frequency
def main(self):
logger.info(f'starting amdgpu-fan')
while True:
for name, card in self._scanner.cards.items():
temp = card.gpu_temp
speed = int(self.curve.get_speed(int(temp)))
if speed < 0:
speed = 0
logger.debug(f'{name}: Temp {temp}, Setting fan speed to: {speed}, fan speed{card.fan_speed}, min:{card.fan_min}, max:{card.fan_max}')
card.set_fan_speed(speed)
time.sleep(self._frequency)
def main():
config = None
for location in CONFIG_LOCATIONS:
if os.path.isfile(location):
config = load_config(location)
break
if config is None:
logger.info(f'no config found, creating one in {CONFIG_LOCATIONS[-1]}')
with open(CONFIG_LOCATIONS[-1], 'w+') as f:
f.write(yaml.dump(dict(speed_matrix=[[0, 0], [100, 100]])))
f.flush()
config = load_config(CONFIG_LOCATIONS[-1])
FanController(config).main()
def load_config(path):
logger.debug(f'loading config from {path}')
with open(path) as f:
return yaml.load(f, Loader=yaml.FullLoader)
def load_config(path):
logger.debug(f'loading config from {path}')
with open(path) as f:
return yaml.safe_load(f)