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add A04 gearbox
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cuu
parent
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275
Code/A04/devterm-a04-gearbox
Executable file
275
Code/A04/devterm-a04-gearbox
Executable file
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#!/usr/bin/python3
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import glob
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import os
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import sys,getopt
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import subprocess
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import time
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# The gearings below were picked based on various tests by the ClockworkPi devs.
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# The maximum-performance maximum-power gearing is present for completeness, but
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# shouldn't be needed for most uses.
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#
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# You can customise the gearings by editing the list below. The valid freqencies
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# for CPU <N> can be looked up here (substituting for <N>):
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# /sys/devices/system/cpu/cpu<N>/cpufreq/scaling_available_frequencies
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#
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#
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# Gears are numbered in-order, starting from 1.
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# It's up to you to ensure that they are sorted by performance :)
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def gears():
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return [
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gear(
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little=(720000,),
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use="simple writing tasks with long battery life"),
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gear(
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little=(888000,) * 2,
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use="browsing most websites with long battery life"),
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gear(
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little=(1080000,) * 3,
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use="most 2D games and emulators"),
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gear(
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little=(1488000,) * 4,
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use="playing videos and 3D games"),
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#gear(
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# little=(1800000,) * 4,
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# use="max performance, max power (usage)"),
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]
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#GPU_GOV_SIMPLE = "simple_ondemand"
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#GPU_GOV_PERF = "performance"
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# Helper to convert the concise gear format above into a full description.
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def gear(
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little=(0, 0, 0, 0),
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gpu_freq=200000000,
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use="",
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):
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# Extend to 4 little (matching the A04).
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assert len(little) <= 4
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cpu = little + (0,) * (4 - len(little))
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# At least one CPU must be enabled
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assert sum(cpu) > 0
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return {
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"cpu": cpu,
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"use": use,
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}
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# We placed gears() at the top of the file to make it easier to find and edit.
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# Now that we've defined the helpers it needs, evaluate the gears.
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gears = gears()
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def load_gear(gear):
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return gears[gear - 1]
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cur_stat = []
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cur_stat.append("+-----------------------------------+")
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cur_stat.append("| Cortex-A53 |")
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cur_stat.append("+--------+--------+--------+--------+")
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cur_stat.append("| CPU 0 | CPU 1 | CPU 2 | CPU 3 |")
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cur_stat.append("+--------+--------+--------+--------+")
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cur_stat.append("| 600MHz | OFF | OFF | OFF |") #5
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cur_stat.append("+--------+--------+--------+--------+")
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def isDigit(x):
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try:
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float(x)
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return True
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except ValueError:
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return False
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class A04:
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cpus = []
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cpu_scaling_governor= "ondemand"
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gear = load_gear(1) # 1-5
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null_out = "2>/dev/null"
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def __init__(self):
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self.cpus = []
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self.init_cpu_infos()
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self.cpu_total_count = len(self.cpus)
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def init_cpu_infos(self):
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self.cpus = glob.glob('/sys/devices/system/cpu/cpu[0-9]')
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self.cpus.sort()
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def get_cpu_gov(self):
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cpu_gov_path = "/sys/devices/system/cpu/cpufreq/policy0/scaling_governor"
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gov = ""
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with open(cpu_gov_path,"r") as f: gov = f.read().strip()
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return gov
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def set_cpu_gov0( self,gov):
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cpu_gov_path = "/sys/devices/system/cpu/cpufreq/policy0/scaling_governor"
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try:
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subprocess.run( "echo %s | sudo tee %s " %(gov,cpu_gov_path),shell=True,stdout=subprocess.DEVNULL)
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except:
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print("set cpu governor failed")
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def get_cpu_on_off(self,cpu_num):
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cpu_onoff_file = "/sys/devices/system/cpu/cpu%d/online" % cpu_num
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onoff = "0"
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max_freq = "0"
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with open(cpu_onoff_file,"r") as f: onoff = f.read().strip()
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if onoff == "1":
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cpu_max_freq_file = "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq" % cpu_num
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with open(cpu_max_freq_file,"r") as f: max_freq = f.read().strip()
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mhz = int(max_freq)/1000
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return "%dMhz" % mhz
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return "OFF"
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def set_cpu_on_off(self,cpu_num,onoff):
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cpu_onoff_file = "/sys/devices/system/cpu/cpu%d/online" % cpu_num
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try:
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#print("echo %d | sudo tee %s" %(onoff,cpu_onoff_file) )
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subprocess.run( "echo %d | sudo tee %s" %(onoff,cpu_onoff_file),shell=True,stdout=subprocess.DEVNULL)
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except:
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print("set cpu %d on off failed" % cpu_num)
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def set_cpu_max_freq(self,cpu_num,max_freq):
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cpu_max_freq_file = "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_max_freq" % cpu_num
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try:
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subprocess.run( "echo %d | sudo tee %s" %(max_freq,cpu_max_freq_file),shell=True,stdout=subprocess.DEVNULL)
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except:
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print("set cpu %d max freq failed" % cpu_num)
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def get_gpu_freq(self):
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gpu_sys_path = "/sys/devices/platform/ff9a0000.gpu/devfreq/ff9a0000.gpu"
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gpu_freq_path = os.path.join(gpu_sys_path,"max_freq")
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freq = ""
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with open(gpu_freq_path,"r") as f: freq = f.read().strip()
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mhz = int(freq)/1000000
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return "%dMHz" % mhz
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def set_gpu(self,gov,hz):
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gpu_sys_path = "/sys/devices/platform/ff9a0000.gpu/devfreq/ff9a0000.gpu"
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gpu_gov_path = os.path.join(gpu_sys_path,"governor")
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gpu_freq_path = os.path.join(gpu_sys_path,"max_freq")
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try:
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subprocess.run("echo %s | sudo tee %s" %(gov,gpu_gov_path),shell=True,stdout=subprocess.DEVNULL)
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subprocess.run("echo %d | sudo tee %s" %(hz, gpu_freq_path),shell=True,stdout=subprocess.DEVNULL)
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except:
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print("set gpu failed")
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def print_cpu_gov(self):
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print("CPU Governor: %s" % self.get_cpu_gov())
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def print_cur_status(self):
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global cur_stat
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stat_str = "|%s|%s|%s|%s|"
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cpu0 = self.get_cpu_on_off(0).center(8)[:8]
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cpu1 = self.get_cpu_on_off(1).center(8)[:8]
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cpu2 = self.get_cpu_on_off(2).center(8)[:8]
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cpu3 = self.get_cpu_on_off(3).center(8)[:8]
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#gpu = self.get_gpu_freq().center(11)[:11]
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table_str = stat_str %(cpu0,cpu1,cpu2,cpu3)
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print("\nCurrent Status:")
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for idx,val in enumerate(cur_stat):
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if idx == 5:
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print(table_str)
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else:
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print(val)
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self.print_cpu_gov()
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def set_gear(self,g):
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self.gear = load_gear(g)
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for (cpu, freq) in enumerate(self.gear["cpu"]):
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enabled = freq > 0
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self.set_cpu_on_off(cpu, int(enabled))
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if enabled:
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self.set_cpu_max_freq(cpu, freq)
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#self.set_gpu(self.gear["gpu_gov"], self.gear["gpu_freq"])
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# TODO: Generalise this
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self.set_cpu_gov0(self.cpu_scaling_governor)
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def print_gear_map(gear):
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print(" +-----------------------------------+")
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print(" | Cortex-A53 |")
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print(" +--------+--------+--------+--------+")
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print(" | CPU 0 | CPU 1 | CPU 2 | CPU 3 |")
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div = "+---+--------+--------+--------+--------+"
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print(div)
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def freq(khz):
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mhz = khz/1000
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if mhz >= 1000:
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return "%d MHz" % mhz
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elif mhz > 0:
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return " %d MHz" % mhz
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else:
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return " OFF "
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for idx, val in enumerate(gears):
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g = idx + 1
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selected = g == gear
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print("|%s|%s|%s" % (("*%s*" if selected else " %s ") % g,"|".join([freq(cpu) for cpu in val["cpu"]])," <===" if selected else "",))
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print(div)
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def print_help_msg():
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print("Usage: devterm-a04-gearbox [OPTION]...")
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print("Show or set the CPU operating frequency,online status and GPU operating frequency for DevTerm A04.")
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print()
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print(" -s, --set [n] set a speed mode between the number 1-%d:" % len(gears))
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for (i, _) in enumerate(gears):
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print(" %d for %s." % (i + 1, gears[i]["use"]))
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print()
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print("Examples:")
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# TODO: Generate this example
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print("Set to mode 1, single core @720MHz(max)")
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print(" $ devterm-a04-gearbox -s 1")
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def is_root():
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return os.geteuid() == 0
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def main(argv):
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gear = 1
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try:
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opts, args = getopt.getopt(argv,"hs:",["set="])
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except getopt.GetoptError:
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print_help_msg()
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sys.exit(2)
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for opt, arg in opts:
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if opt == '-h':
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print_help_msg()
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sys.exit()
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elif opt in ("-s","--set"):
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if(isDigit(arg)):
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gear = int(arg)
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if gear not in range(1, len(gears) + 1):
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print("illegal input: mode range 1-%d" % len(gears))
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sys.exit(-1)
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DT = A04()
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if len(argv) == 0:
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DT.print_cur_status()
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sys.exit(0)
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DT = A04()
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if is_root():
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DT.set_gear(gear)
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print_gear_map(gear)
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DT.print_cpu_gov()
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else:
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print("Require super user privilege to set mode,try run it with sudo")
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sys.exit(1)
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if __name__ == "__main__":
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main(sys.argv[1:])
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