qi-hardware/gmenu2x
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Improved CPU frequency control.

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The maximum frequency for applications was set to 430 MHz before,
while some Dingoos can handle higher frequencies. Now the limit is set to
the theoretical maximum frequency of 500 MHz.

For the menu itself the maximum frequency is set to a safer 408 MHz,
to avoid over-eager users from putting their system in an unusable state
that is difficult to recover from.

Also the frequency settings are now done in 24 MHz increments, to match
the limitations of the current JZ4740 kernel. Note that only new entries
are rounded to 24 MHz multiples, existing entries stay as they are.
This commit is contained in:
Maarten ter Huurne
2011-09-18 18:27:03 +02:00
parent 3995133fa5
commit d354eb85a4
4 changed files with 49 additions and 15 deletions
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42
src/gmenu2x.cpp
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@@ -209,6 +209,27 @@ int main(int /*argc*/, char * /*argv*/[]) {
return 0;
}
void GMenu2X::initCPULimits() {
// Note: These values are for the Dingoo.
// The NanoNote does not have cpufreq enabled in its kernel and
// other devices are not actively maintained.
// TODO: Read min and max from sysfs.
cpuFreqMin = 30;
cpuFreqMax = 500;
cpuFreqSafeMax = 420;
cpuFreqMenuDefault = 200;
cpuFreqAppDefault = 384;
cpuFreqMultiple = 24;
// Round min and max values to the specified multiple.
cpuFreqMin = ((cpuFreqMin + cpuFreqMultiple - 1) / cpuFreqMultiple)
* cpuFreqMultiple;
cpuFreqMax = (cpuFreqMax / cpuFreqMultiple) * cpuFreqMultiple;
cpuFreqSafeMax = (cpuFreqSafeMax / cpuFreqMultiple) * cpuFreqMultiple;
cpuFreqMenuDefault = (cpuFreqMenuDefault / cpuFreqMultiple) * cpuFreqMultiple;
cpuFreqAppDefault = (cpuFreqAppDefault / cpuFreqMultiple) * cpuFreqMultiple;
}
void GMenu2X::init() {
#ifdef PLATFORM_GP2X
/* gp2x_mem = open("/dev/mem", O_RDWR);
@@ -303,6 +324,7 @@ GMenu2X::GMenu2X()
usbnet = samba = inet = web = false;
useSelectionPng = false;
initCPULimits();
//load config data
readConfig();
@@ -673,8 +695,10 @@ void GMenu2X::readConfig(string conffile) {
confStr["skin"] = "Default";
evalIntConf( &confInt["outputLogs"], 0, 0,1 );
evalIntConf( &confInt["maxClock"], 430, 30, 500 );
evalIntConf( &confInt["menuClock"], 200, 30, 430 );
evalIntConf( &confInt["maxClock"],
cpuFreqSafeMax, cpuFreqMin, cpuFreqMax );
evalIntConf( &confInt["menuClock"],
cpuFreqMenuDefault, cpuFreqMin, cpuFreqSafeMax );
evalIntConf( &confInt["globalVolume"], 67, 0,100 );
evalIntConf( &confInt["backlightTimeout"], 15, 0,120 );
evalIntConf( &confInt["backlight"], 100, 5,100 );
@@ -1221,7 +1245,7 @@ void GMenu2X::explorer() {
string command = cmdclean(fd.getPath()+"/"+fd.getFile());
chdir(fd.getPath().c_str());
quit();
setClock(200);
setClock(cpuFreqAppDefault);
execlp("/bin/sh","/bin/sh","-c",command.c_str(),NULL);
//if execution continues then something went wrong and as we already called SDL_Quit we cannot continue
@@ -1254,8 +1278,8 @@ void GMenu2X::options() {
SettingsDialog sd(this, input, ts, tr["Settings"]);
sd.addSetting(new MenuSettingMultiString(this,tr["Language"],tr["Set the language used by GMenu2X"],&lang,&fl_tr.getFiles()));
sd.addSetting(new MenuSettingBool(this,tr["Save last selection"],tr["Save the last selected link and section on exit"],&confInt["saveSelection"]));
sd.addSetting(new MenuSettingInt(this,tr["Clock for GMenu2X"],tr["Set the cpu working frequency when running GMenu2X"],&confInt["menuClock"],200,430));
sd.addSetting(new MenuSettingInt(this,tr["Maximum overclock"],tr["Set the maximum overclock for launching links"],&confInt["maxClock"],200,430));
sd.addSetting(new MenuSettingInt(this,tr["Clock for GMenu2X"],tr["Set the cpu working frequency when running GMenu2X"],&confInt["menuClock"],cpuFreqMin,cpuFreqSafeMax,cpuFreqMultiple));
sd.addSetting(new MenuSettingInt(this,tr["Maximum overclock"],tr["Set the maximum overclock for launching links"],&confInt["maxClock"],cpuFreqMin,cpuFreqMax,cpuFreqMultiple));
sd.addSetting(new MenuSettingInt(this,tr["Global Volume"],tr["Set the default volume for the gp2x soundcard"],&confInt["globalVolume"],0,100));
sd.addSetting(new MenuSettingBool(this,tr["Output logs"],tr["Logs the output of the links. Use the Log Viewer to read them."],&confInt["outputLogs"]));
//G
@@ -1584,7 +1608,7 @@ void GMenu2X::contextMenu() {
}
}
if (fadeAlpha < 200) {
if (!input.pollEvent(&event) || event.state != PRESSED) continue;
} else {
@@ -1666,7 +1690,7 @@ void GMenu2X::editLink() {
sd.addSetting(new MenuSettingMultiString(this,tr["Section"],tr["The section this link belongs to"],&newSection,&menu->getSections()));
sd.addSetting(new MenuSettingImage(this,tr["Icon"],tr.translate("Select an icon for the link: $1",linkTitle.c_str(),NULL),&linkIcon,".png,.bmp,.jpg,.jpeg"));
sd.addSetting(new MenuSettingFile(this,tr["Manual"],tr["Select a graphic/textual manual or a readme"],&linkManual,".man.png,.txt"));
sd.addSetting(new MenuSettingInt(this,tr["Clock (default: 336)"],tr["Cpu clock frequency to set when launching this link"],&linkClock,200,confInt["maxClock"]));
sd.addSetting(new MenuSettingInt(this,tr["Clock (default: 336)"],tr["Cpu clock frequency to set when launching this link"],&linkClock,cpuFreqMin,confInt["maxClock"],cpuFreqMultiple));
// sd.addSetting(new MenuSettingBool(this,tr["Tweak RAM Timings"],tr["This usually speeds up the application at the cost of stability"],&linkUseRamTimings));
sd.addSetting(new MenuSettingInt(this,tr["Volume (default: -1)"],tr["Volume to set for this link"],&linkVolume,-1,100));
sd.addSetting(new MenuSettingInt(this,tr["Backlight (default: -1)"],tr["LCD backlight value to set when launching this link"],&linkBacklight,-1,100));
@@ -1821,7 +1845,7 @@ void GMenu2X::scanner() {
#ifdef PLATFORM_PANDORA
//char *configpath = pnd_conf_query_searchpath();
#else
if (confInt["menuClock"]<430) {
if (confInt["menuClock"]<336) {
setClock(336);
scanbg.write(font,tr["Raising cpu clock to 336Mhz"],5,lineY);
scanbg.blit(s,0,0);
@@ -1889,7 +1913,7 @@ void GMenu2X::scanner() {
s->flip();
lineY += 26;
if (confInt["menuClock"]<430) {
if (confInt["menuClock"]<336) {
setClock(confInt["menuClock"]);
scanbg.write(font,tr["Decreasing cpu clock"],5,lineY);
scanbg.blit(s,0,0);