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add feature:set fan speed forcibly #256

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add feature:set fan speed forcibly #256

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19 changes: 19 additions & 0 deletions isw
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Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,22 @@ def single_write(address, value):
hex(value)+'('+str(value)+')',
hex(address)+'(byte'+str(address)+')'))

def force_fan_speed(percentage):
# Set fan speed to input percentage
percentage = int(percentage)
with open(EC_IO_FILE, 'r+b') as file:
if (percentage < 0 or percentage > 100):
file.seek(0x33)
switch = int(file.read(1).hex(), 16)
switch &= 0xFD
single_write(0x33, switch)
else:
file.seek(0x33)
switch = int(file.read(1).hex(), 16)
switch |= 2
single_write(0x33, switch)
single_write(0x35, percentage)

def main():
# ArgumentParser deal with option/argument handling
# 'type =' is used to launch a function, having an argument is mandatory
Expand Down Expand Up @@ -491,6 +507,9 @@ def main():
help = '┬ write into EC\n'
'└ replace '+Text.ULINED+'W'+Text.CLEAR+' with '
+Text.ULINED+'SECTION_NAME'+Text.CLEAR+'')
parser.add_argument('-x', type=force_fan_speed,
help='Tset fan speed forcibly\n'
'Ltype a number(0-100) for the percentage of fan speed,-1 for off\n')
if len(sys.argv) == 1:
parser.print_help(sys.stderr)
parser.parse_args()
Expand Down