/usr/share/pyshared/indicator_cpufreq/cpufreq.py is in indicator-cpufreq 0.1.4-0ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | # -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
### BEGIN LICENSE
# Copyright (C) 2010 Артём Попов <artfwo@gmail.com>
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
### END LICENSE
from ctypes import *
from ctypes.util import find_library
_libcpufreq = cdll.LoadLibrary(find_library("cpufreq"))
class _cpufreq_policy(Structure):
_fields_ = [
("min", c_ulong),
("max", c_ulong),
("governor", c_char_p)]
class _cpufreq_available_governors(Structure):
pass
_cpufreq_available_governors._fields_ = [
("governor", c_char_p),
("next", POINTER(_cpufreq_available_governors)),
("first", POINTER(_cpufreq_available_governors))]
class _cpufreq_available_frequencies(Structure):
pass
_cpufreq_available_frequencies._fields_ = [
("frequency", c_ulong),
("next", POINTER(_cpufreq_available_frequencies)),
("first", POINTER(_cpufreq_available_frequencies))]
class _cpufreq_affected_cpus(Structure):
pass
_cpufreq_affected_cpus._fields_ = [
("cpu", c_uint),
("next", POINTER(_cpufreq_affected_cpus)),
("first", POINTER(_cpufreq_affected_cpus))]
class _cpufreq_stats(Structure):
pass
_cpufreq_stats._fields_ = [
("frequency", c_ulong),
("time_in_state", c_ulonglong),
("next", POINTER(_cpufreq_stats)),
("first", POINTER(_cpufreq_stats))]
###############################################################################
_libcpufreq.cpufreq_cpu_exists.argtypes = [c_uint]
_libcpufreq.cpufreq_cpu_exists.restype = c_int
_libcpufreq.cpufreq_get_freq_kernel.argtypes = [c_uint]
_libcpufreq.cpufreq_get_freq_kernel.restype = c_ulong
_libcpufreq.cpufreq_get_freq_hardware.argtypes = [c_uint]
_libcpufreq.cpufreq_get_freq_hardware.restype = c_ulong
_libcpufreq.cpufreq_get_transition_latency.argtypes = [c_uint]
_libcpufreq.cpufreq_get_transition_latency.restype = c_ulong
_libcpufreq.cpufreq_get_hardware_limits.argtypes = [c_uint, POINTER(c_ulong), POINTER(c_ulong)]
_libcpufreq.cpufreq_get_hardware_limits.restype = c_int
_libcpufreq.cpufreq_get_driver.argtypes = [c_uint]
_libcpufreq.cpufreq_get_driver.restype = c_char_p
#extern void cpufreq_put_driver(char * ptr);
_libcpufreq.cpufreq_get_policy.argtypes = [c_uint]
_libcpufreq.cpufreq_get_policy.restype = POINTER(_cpufreq_policy)
#extern void cpufreq_put_policy(struct cpufreq_policy *policy);
_libcpufreq.cpufreq_get_available_governors.argtypes = [c_uint]
_libcpufreq.cpufreq_get_available_governors.restype = POINTER(_cpufreq_available_governors)
#extern void cpufreq_put_available_governors(struct _cpufreq_available_governors *first);
_libcpufreq.cpufreq_get_available_frequencies.argtypes = [c_uint]
_libcpufreq.cpufreq_get_available_frequencies.restype = POINTER(_cpufreq_available_frequencies)
#extern void cpufreq_put_available_frequencies(struct _cpufreq_available_frequencies *first);
_libcpufreq.cpufreq_get_affected_cpus.argtypes = [c_uint]
_libcpufreq.cpufreq_get_affected_cpus.restype = POINTER(_cpufreq_affected_cpus)
#extern void cpufreq_put_affected_cpus(struct _cpufreq_affected_cpus *first);
_libcpufreq.cpufreq_get_related_cpus.argtypes = [c_uint]
_libcpufreq.cpufreq_get_related_cpus.restype = POINTER(_cpufreq_affected_cpus)
#extern void cpufreq_put_related_cpus(struct _cpufreq_affected_cpus *first);
_libcpufreq.cpufreq_get_stats.argtypes = [c_uint, POINTER(c_ulonglong)]
_libcpufreq.cpufreq_get_stats.restype = POINTER(_cpufreq_stats)
#extern void cpufreq_put_stats(struct _cpufreq_stats *stats);
_libcpufreq.cpufreq_get_transitions.argtypes = [c_uint]
_libcpufreq.cpufreq_get_transitions.restype = c_ulong
_libcpufreq.cpufreq_set_policy.argtypes = [c_uint, POINTER(_cpufreq_policy)]
_libcpufreq.cpufreq_set_policy.restype = c_int
_libcpufreq.cpufreq_modify_policy_min.argtypes = [c_uint, c_ulong]
_libcpufreq.cpufreq_modify_policy_min.restype = c_int
_libcpufreq.cpufreq_modify_policy_max.argtypes = [c_uint, c_ulong]
_libcpufreq.cpufreq_modify_policy_max.restype = c_int
_libcpufreq.cpufreq_modify_policy_governor.argtypes = [c_uint, c_char_p]
_libcpufreq.cpufreq_modify_policy_governor.restype = c_int
_libcpufreq.cpufreq_set_frequency.argtypes = [c_uint, c_ulong]
_libcpufreq.cpufreq_set_frequency.restype = c_int
def cpu_exists(cpu):
return _libcpufreq.cpufreq_cpu_exists(cpu)
def get_freq_kernel(cpu):
return _libcpufreq.cpufreq_get_freq_kernel(cpu)
def get_freq_hardware(cpu):
return _libcpufreq.cpufreq_get_freq_hardware(cpu)
def get_transition_latency(cpu):
return _libcpufreq.cpufreq_get_transition_latency(cpu)
def get_hardware_limits(cpu):
min = c_ulong()
max = c_ulong()
_libcpufreq.cpufreq_get_hardware_limits(cpu, byref(min), byref(max))
return (min.value, max.value)
def get_driver(cpu):
return _libcpufreq.cpufreq_get_driver(cpu)
def get_policy(cpu):
p = _libcpufreq.cpufreq_get_policy(cpu)
policy = (p.contents.min, p.contents.max, p.contents.governor)
_libcpufreq.cpufreq_put_policy(p)
return policy
def _marshall_structs(first, field):
values = []
p = first
while p:
values.append(getattr(p.contents, field))
p = p.contents.next
return values
def get_available_governors(cpu):
structs = _libcpufreq.cpufreq_get_available_governors(cpu)
values = _marshall_structs(structs, 'governor')
_libcpufreq.cpufreq_put_available_governors(structs)
return values
def get_available_frequencies(cpu):
structs = _libcpufreq.cpufreq_get_available_frequencies(cpu)
values = _marshall_structs(structs, 'frequency')
_libcpufreq.cpufreq_put_available_frequencies(structs)
return values
def get_affected_cpus(cpu):
structs = _libcpufreq.cpufreq_get_affected_cpus(cpu)
values = _marshall_structs(structs, 'cpu')
_libcpufreq.cpufreq_put_affected_cpus(structs)
return values
def get_related_cpus(cpu):
structs = _libcpufreq.cpufreq_get_related_cpus(cpu)
values = _marshall_structs(structs, 'cpu')
_libcpufreq.cpufreq_put_related_cpus(structs)
return values
def get_stats(cpu):
total_time = c_ulonglong()
p = _libcpufreq.cpufreq_get_stats(cpu, byref(total_time))
stats = []
while p:
stats.append((p.contents.frequency, p.contents.time_in_state))
p = p.contents.next
_libcpufreq.cpufreq_put_stats(p)
return total_time.value, stats
def get_transitions(cpu):
return _libcpufreq.cpufreq_get_transitions(cpu)
def set_policy(cpu, min, max, governor):
return _libcpufreq.cpufreq_set_policy(cpu, _cpufreq_policy(min, max, governor))
def modify_policy_min(cpu, min_freq):
return _libcpufreq.cpufreq_modify_policy_min(cpu, min_freq)
def modify_policy_min(cpu, max_freq):
return _libcpufreq.cpufreq_modify_policy_max(cpu, max_freq)
def modify_policy_governor(cpu, governor):
return _libcpufreq.cpufreq_modify_policy_governor(cpu, governor)
def set_frequency(cpu, target_frequency):
return _libcpufreq.cpufreq_set_frequency(cpu, target_frequency)
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