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Backlight dimming is now flicker free on all situations.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6781 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2005-06-20 18:28:05 +00:00
parent 5936246fd0
commit 0cb7511643
1 changed files with 5 additions and 0 deletions
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5
firmware/backlight.c
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@ -82,6 +82,9 @@ void backlight_start_timer(void)
if (bl_timer_active) if (bl_timer_active)
return ; return ;
/* Prevent cpu frequency changes while dimming. */
cpu_boost(true);
count = 1; count = 1;
bl_timer_active = true; bl_timer_active = true;
@ -152,6 +155,7 @@ void TIMER1(void)
if (idle) if (idle)
{ {
cpu_boost(false);
bl_timer_active = false; bl_timer_active = false;
TMR1 = 0; TMR1 = 0;
} }
@ -173,6 +177,7 @@ void backlight_allow_timer(bool on)
if (!timer_allowed && bl_timer_active) if (!timer_allowed && bl_timer_active)
{ {
cpu_boost(false);
bl_dim_current = bl_dim_target; bl_dim_current = bl_dim_target;
bl_timer_active = false; bl_timer_active = false;
TMR1 = 0; TMR1 = 0;