| # 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 _lock_clocks(self): |
| if not self._is_root: |
| return |
| |
| # lock cpu clocks. |
| self._adb.shell('''\ |
| for N in $(seq 0 3); do |
| echo userspace > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_governor |
| echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_setspeed |
| done''' % CPU_CLOCK_RATE) |
| |
| # lock gpu/emc clocks. |
| self._adb.shell('''\ |
| 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._is_root: |
| return |
| |
| # unlock gpu/emc clocks. |
| self._adb.shell('''\ |
| echo auto > /sys/devices/57000000.gpu/pstate |
| chown system:system /sys/devices/57000000.gpu/pstate''') |
| |
| # unlock cpu clocks. |
| self._adb.shell('''\ |
| for N in $(seq 0 3); do |
| echo 0 > /sys/devices/system/cpu/cpu$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._is_root: |
| return |
| |
| # only issue one shell command in an attempt to minimize interference. |
| result = self._adb.check_lines('''\ |
| cat /sys/class/power_supply/bq27742-0/capacity \ |
| /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 $(seq 0 3); do |
| cat /sys/devices/system/cpu/cpu$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(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 range(4)] + \ |
| [Expectation(str, exact_value=GPU_EMC_PROFILE, name='gpu/emc profile')] |
| |
| Expectation.check_all(expectations, result) |
| |
| def sleep(self, sleeptime): |
| self._unlock_clocks() |
| HardwareAndroid.sleep(self, sleeptime) |
| self._lock_clocks() |