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Resident Curmudgeon
Posts: 79,915
Karma: 146918083
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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Quote:
Originally Posted by geek1011
There is a way to do that. After seeing all the roundabout stuff in this thread, I decided to have a quick look and see if there is any way to increase the maximum timeout. Here are a few notes I made while looking into this:
Code:
N3PowerWorkflowManager::setupAlarm is called (this seems to be what allows it to power off during a sleep, etc):
Gets PowerSettings::getAutoOffMinutes and PowerSettings::getAutoSleepMinutes
Runs ::configureWakup for ::powerOff and ::requestSleep depending on values of autoOffMinutes autoSleepMinutes
::configureWakeup:
Multiplies provided minutes by 60000 (min -> ms)
Schedules a wakeup, when triggered, calls the provided function
N3PowerWorkflowManager::pollBattery (does the check, called through Qt's object system):
Gets PowerSettings::getAutoOffMinutes and PowerSettings::getAutoSleepMinutes
Multiplies each by 60000 (min -> ms)
Compares with PowerManager::timeLastUsed
Performs an action if needed
It seems that these two locations are the only ones which matter.
From a quick glance, it appears that it should be fine to patch these multipliers as long as they fit in a 64-bit signed
integer. But, note that the multiplier is a 32-bit signed integer. But, to be safe, don't make the largest possible timeout
longer than 596 hours (~35800 minutes), as I haven't checked all the places where it is used.
And here is a quick patch I put together for 4.15.12920 (untested, but it should work):
Code:
Larger Sleep/Power-off timeouts:
- Enabled: no
# Multiplier in N3PowerWorkflowManager::configureWakeup
- ReplaceBytes: {Offset: 0xA1194C, FindH: 04 FB 05 F5, ReplaceH: 4F EA C5 45} # mul r5(dest), r4(multiplier), r5(mins) -> lsl r5, r5, #19
# Multiplier in N3PowerWorkflowManager::pollBattery
- ReplaceBytes: {Offset: 0xA13692, FindH: 08 FB 00 F8, ReplaceH: 4F EA C0 48} # mul r8(dest), r8(multiplier), r0(mins) -> lsl r8, r0, #19
- ReplaceBytes: {Offset: 0xA136C2, FindH: 02 FB 00 F2, ReplaceH: 4F EA C0 42} # mul r2(dest), r2(multiplier), r0(mins) -> lsl r2, r0, #19
# Menu text
- BaseAddress: 0xD48754
- ReplaceString: {Offset: 0, Find: "5 mins\0", Replace: "8m"}
- ReplaceString: {Offset: 8, Find: "10 mins", Replace: "34m"}
- ReplaceString: {Offset: 16, Find: "15 mins", Replace: "1h1m"}
- ReplaceString: {Offset: 24, Find: "30 mins", Replace: "4h4m"}
- ReplaceString: {Offset: 32, Find: "45 mins", Replace: "12h5m"}
- ReplaceString: {Offset: 38, Find: "60 mins", Replace: "24h1m"}
# Values
- BaseAddress: 0
- ReplaceInt: {Offset: 0xACF230, Find: 5, Replace: 1}
- ReplaceInt: {Offset: 0xACF3F6, Find: 5, Replace: 1}
- ReplaceInt: {Offset: 0xACF288, Find: 10, Replace: 4}
- ReplaceInt: {Offset: 0xACF432, Find: 10, Replace: 4}
- ReplaceInt: {Offset: 0xACF2C4, Find: 15, Replace: 7}
- ReplaceInt: {Offset: 0xACF46C, Find: 15, Replace: 7}
- ReplaceInt: {Offset: 0xACF300, Find: 30, Replace: 28}
- ReplaceInt: {Offset: 0xACF4A6, Find: 30, Replace: 28}
- ReplaceInt: {Offset: 0xACF33C, Find: 45, Replace: 83}
- ReplaceInt: {Offset: 0xACF4E0, Find: 45, Replace: 83}
- ReplaceInt: {Offset: 0xACF378, Find: 60, Replace: 165}
- ReplaceInt: {Offset: 0xACF518, Find: 60, Replace: 165}
And for custom values: |
Can this patch be converted to work with current 4.17 firmware if it doesn't work as is?
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