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Few more code cleanups to the button light work. This reduces the flickering of the backlight when a button is held (fewer sc606 writes).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13355 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Karl Kurbjun 2007-05-08 05:47:36 +00:00
parent 7ef0af07f1
commit 830576bb0b
1 changed files with 14 additions and 11 deletions
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25
firmware/target/arm/s3c2440/gigabeat-fx/backlight-meg-fx.c
View file

@ -55,16 +55,9 @@ static enum sc606_states
enum buttonlight_states
{
BUTTONLIGHT_CONTROL_IDLE,
/* turn button lights off */
BUTTONLIGHT_CONTROL_OFF,
/* turns button lights on to setting */
BUTTONLIGHT_CONTROL_ON,
/* buttonlights follow the backlight settings */
BUTTONLIGHT_CONTROL_FADE,
} buttonlight_control;
static unsigned short buttonlight_trigger_now;
@ -134,8 +127,6 @@ void __buttonlight_mode(enum buttonlight_mode mode)
default:
return; /* unknown mode */
}
}
/*
@ -162,7 +153,7 @@ static void led_control_service(void)
sc606regCONFval=3;
static bool sc606_changed=true;
if(sc606_changed==false)
{
switch (backlight_control)
@ -186,6 +177,12 @@ static void led_control_service(void)
backlight_control = BACKLIGHT_CONTROL_ON;
break;
case BACKLIGHT_CONTROL_FADE:
/* Was this mode set while the backlight is already on/off? */
if(backlight_target==sc606regAval)
{
backlight_control = BACKLIGHT_CONTROL_IDLE;
break;
}
sc606_changed=true;
sc606regCONFval |= 0x03;
if(backlight_target>sc606regAval)
@ -222,6 +219,12 @@ static void led_control_service(void)
buttonlight_control=BUTTONLIGHT_CONTROL_IDLE;
break;
case BUTTONLIGHT_CONTROL_FADE:
/* Was this mode set while the button light is already on/off? */
if(buttonlight_target==sc606regBval)
{
buttonlight_control=BUTTONLIGHT_CONTROL_IDLE;
break;
}
sc606_changed=true;
sc606regCONFval |= 0x3C;
if(buttonlight_target>sc606regBval)
@ -275,7 +278,7 @@ static void led_control_service(void)
sc606_control=SC606_CONTROL_A12;
break;
}
if(sc606regCONFval&0x03)
lcd_enable(true);
else