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Android: Change how detecting call state (introduced in r27746) works, from polling to event based.

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* For some reason, the polling methid is much more inefficient than I thought. According to htop it caused up to 15% CPU load on some phones (e.g. Galaxy S).
The event based causes no CPU load.
Rockbox' idle CPU load is now back to 0%, while it was previously dominated by polling the call state.

* Also stop on outgoing calls (no need to explicitely pause for making a call anymore).
* Factor out the detection mechanism to separate files.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28564 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-11-12 21:04:13 +00:00
parent bb56bc4ba0
commit 0cf2cc1607
7 changed files with 174 additions and 56 deletions
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firmware/SOURCES
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@ -1714,6 +1714,7 @@ target/hosted/android/kernel-android.c
target/hosted/android/pcm-android.c
target/hosted/android/powermgmt-android.c
target/hosted/android/system-android.c
target/hosted/android/telephony-android.c
#ifdef APPLICATION
target/hosted/android/app/button-application.c
#endif