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# Copyright 2016 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from _hardware import HardwareException, Expectation
from _hardware_android import HardwareAndroid
CPU_CLOCK_RATE = 1836000
GPU_EMC_PROFILE = '0c: core 921 MHz emc 1600 MHz a A d D *'
GPU_EMC_PROFILE_ID = '0c'
class HardwarePixelC(HardwareAndroid):
def __init__(self, adb):
HardwareAndroid.__init__(self, adb)
def __enter__(self):
self._lock_clocks()
return HardwareAndroid.__enter__(self)
def __exit__(self, exception_type, exception_value, exception_traceback):
HardwareAndroid.__exit__(self, exception_type,
exception_value, exception_traceback)
self._unlock_clocks()
def filter_line(self, line):
JUNK = ['NvRmPrivGetChipPlatform: Could not read platform information',
'Expected on kernels without fuse support, using silicon']
return False if line in JUNK else HardwareAndroid.filter_line(self, line)
def _lock_clocks(self):
if not self._adb.is_root():
return
self._adb.shell('\n'.join([
# turn on and lock the first 3 cores.
'''
for N in 0 1 2; do
echo 1 > /sys/devices/system/cpu/cpu$N/online
echo userspace > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_governor
echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_max_freq
echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_min_freq
echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_setspeed
done''' % tuple(CPU_CLOCK_RATE for _ in range(3)),
# turn off the fourth core.
'''
echo 0 > /sys/devices/system/cpu/cpu3/online''',
# lock gpu/emc clocks.
'''
chown root:root /sys/devices/57000000.gpu/pstate
echo %s > /sys/devices/57000000.gpu/pstate''' % GPU_EMC_PROFILE_ID]))
def _unlock_clocks(self):
if not self._adb.is_root():
return
self._adb.shell('\n'.join([
# unlock gpu/emc clocks.
'''
echo auto > /sys/devices/57000000.gpu/pstate
chown system:system /sys/devices/57000000.gpu/pstate''',
# turn the fourth core back on.
'''
echo 1 > /sys/devices/system/cpu/cpu3/online''',
# unlock the first 3 cores.
'''
for N in 2 1 0; do
echo 1912500 > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_max_freq
echo 51000 > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_min_freq
echo 0 > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_setspeed
echo interactive >/sys/devices/system/cpu/cpu$N/cpufreq/scaling_governor
done''']))
def sanity_check(self):
HardwareAndroid.sanity_check(self)
if not self._adb.is_root():
return
# only issue one shell command in an attempt to minimize interference.
result = self._adb.check('''\
cat /sys/class/power_supply/bq27742-0/capacity \
/sys/devices/system/cpu/online \
/sys/class/thermal/thermal_zone7/temp \
/sys/class/thermal/thermal_zone0/temp \
/sys/class/thermal/thermal_zone1/temp \
/sys/class/thermal/thermal_zone7/cdev1/cur_state \
/sys/class/thermal/thermal_zone7/cdev0/cur_state
for N in 0 1 2; do
cat /sys/devices/system/cpu/cpu$N/cpufreq/scaling_cur_freq
done
cat /sys/devices/57000000.gpu/pstate | grep \*$''')
expectations = \
[Expectation(int, min_value=30, name='battery', sleeptime=30*60),
Expectation(str, exact_value='0-2', name='online cpus'),
Expectation(int, max_value=40000, name='skin temperature'),
Expectation(int, max_value=86000, name='cpu temperature'),
Expectation(int, max_value=87000, name='gpu temperature'),
Expectation(int, exact_value=0, name='cpu throttle'),
Expectation(int, exact_value=0, name='gpu throttle')] + \
[Expectation(int, exact_value=CPU_CLOCK_RATE,
name='cpu_%i clock rate' % i, sleeptime=30)
for i in (0, 1, 2)] + \
[Expectation(str, exact_value=GPU_EMC_PROFILE, name='gpu/emc profile')]
Expectation.check_all(expectations, result.splitlines())
def sleep(self, sleeptime):
self._unlock_clocks()
HardwareAndroid.sleep(self, sleeptime)
self._lock_clocks()
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