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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/cpufreq/freq_table.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/cpufreq/freq_table.c')
-rw-r--r--ANDROID_3.4.5/drivers/cpufreq/freq_table.c236
1 files changed, 0 insertions, 236 deletions
diff --git a/ANDROID_3.4.5/drivers/cpufreq/freq_table.c b/ANDROID_3.4.5/drivers/cpufreq/freq_table.c
deleted file mode 100644
index 90431cb9..00000000
--- a/ANDROID_3.4.5/drivers/cpufreq/freq_table.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * linux/drivers/cpufreq/freq_table.c
- *
- * Copyright (C) 2002 - 2003 Dominik Brodowski
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-
-/*********************************************************************
- * FREQUENCY TABLE HELPERS *
- *********************************************************************/
-
-int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
- struct cpufreq_frequency_table *table)
-{
- unsigned int min_freq = ~0;
- unsigned int max_freq = 0;
- unsigned int i;
-
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID) {
- pr_debug("table entry %u is invalid, skipping\n", i);
-
- continue;
- }
- pr_debug("table entry %u: %u kHz, %u index\n",
- i, freq, table[i].index);
- if (freq < min_freq)
- min_freq = freq;
- if (freq > max_freq)
- max_freq = freq;
- }
-
- policy->min = policy->cpuinfo.min_freq = min_freq;
- policy->max = policy->cpuinfo.max_freq = max_freq;
-
- if (policy->min == ~0)
- return -EINVAL;
- else
- return 0;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_cpuinfo);
-
-
-int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
- struct cpufreq_frequency_table *table)
-{
- unsigned int next_larger = ~0;
- unsigned int i;
- unsigned int count = 0;
-
- pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
- policy->min, policy->max, policy->cpu);
-
- if (!cpu_online(policy->cpu))
- return -EINVAL;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
- if ((freq >= policy->min) && (freq <= policy->max))
- count++;
- else if ((next_larger > freq) && (freq > policy->max))
- next_larger = freq;
- }
-
- if (!count)
- policy->max = next_larger;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
- pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
- policy->min, policy->max, policy->cpu);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
-
-
-int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
- struct cpufreq_frequency_table *table,
- unsigned int target_freq,
- unsigned int relation,
- unsigned int *index)
-{
- struct cpufreq_frequency_table optimal = {
- .index = ~0,
- .frequency = 0,
- };
- struct cpufreq_frequency_table suboptimal = {
- .index = ~0,
- .frequency = 0,
- };
- unsigned int i;
-
- pr_debug("request for target %u kHz (relation: %u) for cpu %u\n",
- target_freq, relation, policy->cpu);
-
- switch (relation) {
- case CPUFREQ_RELATION_H:
- suboptimal.frequency = ~0;
- break;
- case CPUFREQ_RELATION_L:
- optimal.frequency = ~0;
- break;
- }
-
- if (!cpu_online(policy->cpu))
- return -EINVAL;
-
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
- unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
- continue;
- if ((freq < policy->min) || (freq > policy->max))
- continue;
- switch (relation) {
- case CPUFREQ_RELATION_H:
- if (freq <= target_freq) {
- if (freq >= optimal.frequency) {
- optimal.frequency = freq;
- optimal.index = i;
- }
- } else {
- if (freq <= suboptimal.frequency) {
- suboptimal.frequency = freq;
- suboptimal.index = i;
- }
- }
- break;
- case CPUFREQ_RELATION_L:
- if (freq >= target_freq) {
- if (freq <= optimal.frequency) {
- optimal.frequency = freq;
- optimal.index = i;
- }
- } else {
- if (freq >= suboptimal.frequency) {
- suboptimal.frequency = freq;
- suboptimal.index = i;
- }
- }
- break;
- }
- }
- if (optimal.index > i) {
- if (suboptimal.index > i)
- return -EINVAL;
- *index = suboptimal.index;
- } else
- *index = optimal.index;
-
- pr_debug("target is %u (%u kHz, %u)\n", *index, table[*index].frequency,
- table[*index].index);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_target);
-
-static DEFINE_PER_CPU(struct cpufreq_frequency_table *, cpufreq_show_table);
-/**
- * show_available_freqs - show available frequencies for the specified CPU
- */
-static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf)
-{
- unsigned int i = 0;
- unsigned int cpu = policy->cpu;
- ssize_t count = 0;
- struct cpufreq_frequency_table *table;
-
- if (!per_cpu(cpufreq_show_table, cpu))
- return -ENODEV;
-
- table = per_cpu(cpufreq_show_table, cpu);
-
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
- if (table[i].frequency == CPUFREQ_ENTRY_INVALID)
- continue;
- count += sprintf(&buf[count], "%d ", table[i].frequency);
- }
- count += sprintf(&buf[count], "\n");
-
- return count;
-
-}
-
-struct freq_attr cpufreq_freq_attr_scaling_available_freqs = {
- .attr = { .name = "scaling_available_frequencies",
- .mode = 0444,
- },
- .show = show_available_freqs,
-};
-EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
-
-/*
- * if you use these, you must assure that the frequency table is valid
- * all the time between get_attr and put_attr!
- */
-void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
- unsigned int cpu)
-{
- pr_debug("setting show_table for cpu %u to %p\n", cpu, table);
- per_cpu(cpufreq_show_table, cpu) = table;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_attr);
-
-void cpufreq_frequency_table_put_attr(unsigned int cpu)
-{
- pr_debug("clearing show_table for cpu %u\n", cpu);
- per_cpu(cpufreq_show_table, cpu) = NULL;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
-
-struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu)
-{
- return per_cpu(cpufreq_show_table, cpu);
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_get_table);
-
-MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
-MODULE_DESCRIPTION("CPUfreq frequency table helpers");
-MODULE_LICENSE("GPL");