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7fe2f639 DB |
1 | /* |
2 | * (C) 2004-2009 Dominik Brodowski <[email protected]> | |
3 | * | |
4 | * Licensed under the terms of the GNU GPL License version 2. | |
5 | */ | |
6 | ||
7 | ||
8 | #include <stdio.h> | |
9 | #include <errno.h> | |
10 | #include <stdlib.h> | |
11 | #include <string.h> | |
12 | ||
13 | #include "cpufreq.h" | |
14 | #include "sysfs.h" | |
15 | ||
16 | int cpufreq_cpu_exists(unsigned int cpu) | |
17 | { | |
18 | return sysfs_cpu_exists(cpu); | |
19 | } | |
20 | ||
21 | unsigned long cpufreq_get_freq_kernel(unsigned int cpu) | |
22 | { | |
23 | return sysfs_get_freq_kernel(cpu); | |
24 | } | |
25 | ||
26 | unsigned long cpufreq_get_freq_hardware(unsigned int cpu) | |
27 | { | |
28 | return sysfs_get_freq_hardware(cpu); | |
29 | } | |
30 | ||
31 | unsigned long cpufreq_get_transition_latency(unsigned int cpu) | |
32 | { | |
33 | return sysfs_get_freq_transition_latency(cpu); | |
34 | } | |
35 | ||
36 | int cpufreq_get_hardware_limits(unsigned int cpu, | |
37 | unsigned long *min, | |
38 | unsigned long *max) | |
39 | { | |
40 | if ((!min) || (!max)) | |
41 | return -EINVAL; | |
42 | return sysfs_get_freq_hardware_limits(cpu, min, max); | |
43 | } | |
44 | ||
6c2b8185 DB |
45 | char *cpufreq_get_driver(unsigned int cpu) |
46 | { | |
7fe2f639 DB |
47 | return sysfs_get_freq_driver(cpu); |
48 | } | |
49 | ||
6c2b8185 DB |
50 | void cpufreq_put_driver(char *ptr) |
51 | { | |
7fe2f639 DB |
52 | if (!ptr) |
53 | return; | |
54 | free(ptr); | |
55 | } | |
56 | ||
6c2b8185 DB |
57 | struct cpufreq_policy *cpufreq_get_policy(unsigned int cpu) |
58 | { | |
7fe2f639 DB |
59 | return sysfs_get_freq_policy(cpu); |
60 | } | |
61 | ||
6c2b8185 DB |
62 | void cpufreq_put_policy(struct cpufreq_policy *policy) |
63 | { | |
7fe2f639 DB |
64 | if ((!policy) || (!policy->governor)) |
65 | return; | |
66 | ||
67 | free(policy->governor); | |
68 | policy->governor = NULL; | |
69 | free(policy); | |
70 | } | |
71 | ||
6c2b8185 DB |
72 | struct cpufreq_available_governors *cpufreq_get_available_governors(unsigned |
73 | int cpu) | |
74 | { | |
7fe2f639 DB |
75 | return sysfs_get_freq_available_governors(cpu); |
76 | } | |
77 | ||
6c2b8185 DB |
78 | void cpufreq_put_available_governors(struct cpufreq_available_governors *any) |
79 | { | |
7fe2f639 DB |
80 | struct cpufreq_available_governors *tmp, *next; |
81 | ||
82 | if (!any) | |
83 | return; | |
84 | ||
85 | tmp = any->first; | |
86 | while (tmp) { | |
87 | next = tmp->next; | |
88 | if (tmp->governor) | |
89 | free(tmp->governor); | |
90 | free(tmp); | |
91 | tmp = next; | |
92 | } | |
93 | } | |
94 | ||
95 | ||
6c2b8185 DB |
96 | struct cpufreq_available_frequencies |
97 | *cpufreq_get_available_frequencies(unsigned int cpu) | |
98 | { | |
7fe2f639 DB |
99 | return sysfs_get_available_frequencies(cpu); |
100 | } | |
101 | ||
6c2b8185 DB |
102 | void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies |
103 | *any) { | |
7fe2f639 DB |
104 | struct cpufreq_available_frequencies *tmp, *next; |
105 | ||
106 | if (!any) | |
107 | return; | |
108 | ||
109 | tmp = any->first; | |
110 | while (tmp) { | |
111 | next = tmp->next; | |
112 | free(tmp); | |
113 | tmp = next; | |
114 | } | |
115 | } | |
116 | ||
117 | ||
6c2b8185 DB |
118 | struct cpufreq_affected_cpus *cpufreq_get_affected_cpus(unsigned int cpu) |
119 | { | |
7fe2f639 DB |
120 | return sysfs_get_freq_affected_cpus(cpu); |
121 | } | |
122 | ||
6c2b8185 DB |
123 | void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any) |
124 | { | |
7fe2f639 DB |
125 | struct cpufreq_affected_cpus *tmp, *next; |
126 | ||
127 | if (!any) | |
128 | return; | |
129 | ||
130 | tmp = any->first; | |
131 | while (tmp) { | |
132 | next = tmp->next; | |
133 | free(tmp); | |
134 | tmp = next; | |
135 | } | |
136 | } | |
137 | ||
138 | ||
6c2b8185 DB |
139 | struct cpufreq_affected_cpus *cpufreq_get_related_cpus(unsigned int cpu) |
140 | { | |
7fe2f639 DB |
141 | return sysfs_get_freq_related_cpus(cpu); |
142 | } | |
143 | ||
6c2b8185 DB |
144 | void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any) |
145 | { | |
7fe2f639 DB |
146 | cpufreq_put_affected_cpus(any); |
147 | } | |
148 | ||
149 | ||
6c2b8185 DB |
150 | int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy) |
151 | { | |
7fe2f639 DB |
152 | if (!policy || !(policy->governor)) |
153 | return -EINVAL; | |
154 | ||
155 | return sysfs_set_freq_policy(cpu, policy); | |
156 | } | |
157 | ||
158 | ||
6c2b8185 DB |
159 | int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq) |
160 | { | |
7fe2f639 DB |
161 | return sysfs_modify_freq_policy_min(cpu, min_freq); |
162 | } | |
163 | ||
164 | ||
6c2b8185 DB |
165 | int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq) |
166 | { | |
7fe2f639 DB |
167 | return sysfs_modify_freq_policy_max(cpu, max_freq); |
168 | } | |
169 | ||
170 | ||
6c2b8185 DB |
171 | int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) |
172 | { | |
7fe2f639 DB |
173 | if ((!governor) || (strlen(governor) > 19)) |
174 | return -EINVAL; | |
175 | ||
176 | return sysfs_modify_freq_policy_governor(cpu, governor); | |
177 | } | |
178 | ||
6c2b8185 DB |
179 | int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) |
180 | { | |
7fe2f639 DB |
181 | return sysfs_set_frequency(cpu, target_frequency); |
182 | } | |
183 | ||
6c2b8185 DB |
184 | struct cpufreq_stats *cpufreq_get_stats(unsigned int cpu, |
185 | unsigned long long *total_time) | |
186 | { | |
187 | return sysfs_get_freq_stats(cpu, total_time); | |
7fe2f639 DB |
188 | } |
189 | ||
6c2b8185 DB |
190 | void cpufreq_put_stats(struct cpufreq_stats *any) |
191 | { | |
7fe2f639 DB |
192 | struct cpufreq_stats *tmp, *next; |
193 | ||
194 | if (!any) | |
195 | return; | |
196 | ||
197 | tmp = any->first; | |
198 | while (tmp) { | |
199 | next = tmp->next; | |
200 | free(tmp); | |
201 | tmp = next; | |
202 | } | |
203 | } | |
204 | ||
6c2b8185 DB |
205 | unsigned long cpufreq_get_transitions(unsigned int cpu) |
206 | { | |
207 | return sysfs_get_freq_transitions(cpu); | |
7fe2f639 | 208 | } |