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author | Michael Sevakis <jethead71@rockbox.org> | 2008-10-27 16:30:24 +0000 |
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committer | Michael Sevakis <jethead71@rockbox.org> | 2008-10-27 16:30:24 +0000 |
commit | a9e69d935cb5c2e5ffca1bbc977252ce7661d343 (patch) | |
tree | 8ac65804b294cfe7cc55febe445f904a1b33cb0e /firmware/target/arm/tcc77x/timer-tcc77x.c | |
parent | e5d72ac5f767a66b11c7a46dfb4edd322f7a723d (diff) | |
download | rockbox-a9e69d935cb5c2e5ffca1bbc977252ce7661d343.tar.gz rockbox-a9e69d935cb5c2e5ffca1bbc977252ce7661d343.zip |
Strange little kernel optimization to ease targeting the timer tick and to limit the number of loops in the tick function to the number of tasks added rather than always looping the max number.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18893 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/tcc77x/timer-tcc77x.c')
-rw-r--r-- | firmware/target/arm/tcc77x/timer-tcc77x.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/firmware/target/arm/tcc77x/timer-tcc77x.c b/firmware/target/arm/tcc77x/timer-tcc77x.c index 4645e388cc..924ddda625 100644 --- a/firmware/target/arm/tcc77x/timer-tcc77x.c +++ b/firmware/target/arm/tcc77x/timer-tcc77x.c | |||
@@ -51,24 +51,12 @@ void __timer_unregister(void) | |||
51 | 51 | ||
52 | 52 | ||
53 | /* Timer interrupt processing - all timers (inc. tick) have a single IRQ */ | 53 | /* Timer interrupt processing - all timers (inc. tick) have a single IRQ */ |
54 | |||
55 | extern void (*tick_funcs[MAX_NUM_TICK_TASKS])(void); | ||
56 | |||
57 | void TIMER(void) | 54 | void TIMER(void) |
58 | { | 55 | { |
59 | if (TIREQ & TF0) /* Timer0 reached ref value */ | 56 | if (TIREQ & TF0) /* Timer0 reached ref value */ |
60 | { | 57 | { |
61 | int i; | ||
62 | |||
63 | /* Run through the list of tick tasks */ | 58 | /* Run through the list of tick tasks */ |
64 | for(i = 0; i < MAX_NUM_TICK_TASKS; i++) | 59 | call_tick_tasks(); |
65 | { | ||
66 | if(tick_funcs[i]) | ||
67 | { | ||
68 | tick_funcs[i](); | ||
69 | } | ||
70 | } | ||
71 | current_tick++; | ||
72 | 60 | ||
73 | /* reset Timer 0 IRQ & ref flags */ | 61 | /* reset Timer 0 IRQ & ref flags */ |
74 | TIREQ |= TI0 | TF0; | 62 | TIREQ |= TI0 | TF0; |