4382f8773e
sonynwz: quirk for cpufreq broken driver There was some redundancy between frequency_linux(cpu, true) and current_scaling_frequency(), also I see no reason to compile the cpuinfo stuff unconditionally and the scaling info only on DX since it was already printed some partial scaling info anyway. Thus compile all the code unconditionally and simplify the logic in the debug menu. Also avoid putting buffers of size PATH_MAX on stack since it can be quite big and we only requires 64 bytes for those paths. On Sony NWZ, the cpu driver reports frequency in MHz instead of kHz thus we need to make the cpuinfo code aware of that bug. Change-Id: I61af45ab5f179ecc909b4841b9137a915a60193a
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2011 Thomas Martitz
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
|
|
#ifndef __CPUINFO_LINUX_H__
|
|
#define __CPUINFO_LINUX_H__
|
|
|
|
#include <stdbool.h>
|
|
|
|
struct cpuusage {
|
|
long usage; /* in hundredth percent */
|
|
long utime; /* in clock ticks */
|
|
long stime; /* in clock ticks */
|
|
long rtime; /* in clock ticks */
|
|
long hz; /* how clock ticks per second */
|
|
};
|
|
|
|
struct time_state {
|
|
long frequency;
|
|
long time;
|
|
};
|
|
|
|
int cpuusage_linux(struct cpuusage* u);
|
|
/* Return the frequency of a CPU. Note that whenever CPU frequency scaling is supported by the
|
|
* driver, this frequency may not be accurate and may vaguely reflect the cpu mode. Use
|
|
* current_scaling_frequency() to get the actual frequency if scaling is supported.
|
|
* Return -1 on error. */
|
|
int frequency_linux(int cpu);
|
|
|
|
/*
|
|
Get the current cpufreq scaling governor.
|
|
cpu [in]: The number of the cpu to query.
|
|
governor [out]: Buffer for the governor.
|
|
governor_size [in]: Size of the buffer for the governor.
|
|
Returns true on success, false else.
|
|
*/
|
|
bool current_scaling_governor(int cpu, char* governor, int governor_size);
|
|
|
|
|
|
/*
|
|
Get the minimum, current or maximum cpufreq scaling frequency.
|
|
cpu [in]: The number of the cpu to query.
|
|
Returns -1 failure.
|
|
*/
|
|
int min_scaling_frequency(int cpu);
|
|
int current_scaling_frequency(int cpu);
|
|
int max_scaling_frequency(int cpu);
|
|
|
|
int cpustatetimes_linux(int cpu, struct time_state* data, int max_elements);
|
|
int cpucount_linux(void);
|
|
|
|
#endif /* __CPUINFO_LINUX_H__ */
|