1 # Copyright 2016 Google Inc. 2 # 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 from _hardware import HardwareException, Expectation 7 from _hardware_android import HardwareAndroid 8 9 CPU_CLOCK_RATE = 1836000 10 GPU_EMC_PROFILE = '0c: core 921 MHz emc 1600 MHz a A d D *' 11 GPU_EMC_PROFILE_ID = '0c' 12 13 class HardwarePixelC(HardwareAndroid): 14 def __init__(self, adb): 15 HardwareAndroid.__init__(self, adb) 16 17 def __enter__(self): 18 HardwareAndroid.__enter__(self) 19 if not self._adb.is_root(): 20 return self 21 22 self._adb.shell('\n'.join([ 23 # turn on and lock the first 3 cores. 24 ''' 25 for N in 0 1 2; do 26 echo 1 > /sys/devices/system/cpu/cpu$N/online 27 echo userspace > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_governor 28 echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_max_freq 29 echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_min_freq 30 echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_setspeed 31 done''' % tuple(CPU_CLOCK_RATE for _ in range(3)), 32 33 # turn off the fourth core. 34 ''' 35 echo 0 > /sys/devices/system/cpu/cpu3/online''', 36 37 # lock gpu/emc clocks. 38 ''' 39 chown root:root /sys/devices/57000000.gpu/pstate 40 echo %s > /sys/devices/57000000.gpu/pstate''' % GPU_EMC_PROFILE_ID])) 41 42 return self 43 44 def filter_line(self, line): 45 JUNK = ['NvRmPrivGetChipPlatform: Could not read platform information', 46 'Expected on kernels without fuse support, using silicon'] 47 return False if line in JUNK else HardwareAndroid.filter_line(self, line) 48 49 def sanity_check(self): 50 HardwareAndroid.sanity_check(self) 51 52 if not self._adb.is_root(): 53 return 54 55 # only issue one shell command in an attempt to minimize interference. 56 result = self._adb.check('''\ 57 cat /sys/class/power_supply/bq27742-0/capacity \ 58 /sys/devices/system/cpu/online \ 59 /sys/class/thermal/thermal_zone7/temp \ 60 /sys/class/thermal/thermal_zone0/temp \ 61 /sys/class/thermal/thermal_zone1/temp \ 62 /sys/class/thermal/thermal_zone7/cdev1/cur_state \ 63 /sys/class/thermal/thermal_zone7/cdev0/cur_state 64 for N in 0 1 2; do 65 cat /sys/devices/system/cpu/cpu$N/cpufreq/scaling_cur_freq 66 done 67 cat /sys/devices/57000000.gpu/pstate | grep \*$''') 68 69 expectations = \ 70 [Expectation(int, min_value=30, name='battery', sleeptime=30*60), 71 Expectation(str, exact_value='0-2', name='online cpus'), 72 Expectation(int, max_value=40000, name='skin temperature'), 73 Expectation(int, max_value=86000, name='cpu temperature'), 74 Expectation(int, max_value=87000, name='gpu temperature'), 75 Expectation(int, exact_value=0, name='cpu throttle'), 76 Expectation(int, exact_value=0, name='gpu throttle')] + \ 77 [Expectation(int, exact_value=CPU_CLOCK_RATE, 78 name='cpu_%i clock rate' % i, sleeptime=30) 79 for i in (0, 1, 2)] + \ 80 [Expectation(str, exact_value=GPU_EMC_PROFILE, name='gpu/emc profile')] 81 82 Expectation.check_all(expectations, result.splitlines()) 83
