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Iriver: atomic I/O port manipulation macros, to avoid interference between normal and interrupt code. Todo: all other places that do port manipulation on ports which may also be changed from an intterupt should use that as well. It even decreases binary size a bit.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6985 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-07-02 12:18:10 +00:00
parent 8102f3da27
commit a8cadd8181
3 changed files with 57 additions and 34 deletions
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20
firmware/backlight.c
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@ -114,7 +114,7 @@ void TIMER1(void)
if (bl_dim_current > 0 && bl_dim_current < BL_PWM_COUNT)
{
GPIO1_OUT &= ~0x00020000;
and_l(~0x00020000, &GPIO1_OUT);
bl_pwm_counter = bl_dim_current;
timer_period = timer_period * bl_pwm_counter / BL_PWM_COUNT;
bl_dim_state = DIM_STATE_MAIN;
@ -122,9 +122,9 @@ void TIMER1(void)
else
{
if (bl_dim_current)
GPIO1_OUT &= ~0x00020000;
and_l(~0x00020000, &GPIO1_OUT);
else
GPIO1_OUT |= 0x00020000;
or_l(0x00020000, &GPIO1_OUT);
if (bl_dim_current == bl_dim_target)
idle = true;
}
@ -133,7 +133,7 @@ void TIMER1(void)
/* Dim main screen */
case DIM_STATE_MAIN:
GPIO1_OUT |= 0x00020000;
or_l(0x00020000, &GPIO1_OUT);
bl_dim_state = DIM_STATE_START;
timer_period = timer_period * (BL_PWM_COUNT - bl_pwm_counter) / BL_PWM_COUNT;
break ;
@ -182,9 +182,9 @@ void backlight_allow_timer(bool on)
TMR1 = 0;
if (bl_dim_current)
GPIO1_OUT &= ~0x00020000;
and_l(~0x00020000, &GPIO1_OUT);
else
GPIO1_OUT |= 0x00020000;
or_l(0x00020000, &GPIO1_OUT);
}
}
@ -207,7 +207,7 @@ static void __backlight_off(void)
else
{
bl_dim_target = bl_dim_current = 0;
GPIO1_OUT |= 0x00020000;
or_l(0x00020000, &GPIO1_OUT);
}
#elif CONFIG_BACKLIGHT == BL_RTC
/* Disable square wave */
@ -229,7 +229,7 @@ static void __backlight_on(void)
else
{
bl_dim_target = bl_dim_current = BL_PWM_COUNT;
GPIO1_OUT &= ~0x00020000;
and_l(~0x00020000, &GPIO1_OUT);
}
#elif CONFIG_BACKLIGHT == BL_RTC
/* Enable square wave */
@ -409,8 +409,8 @@ void backlight_init(void)
sizeof(backlight_stack), backlight_thread_name);
#if CONFIG_BACKLIGHT == BL_IRIVER
GPIO1_ENABLE |= 0x00020000;
GPIO1_FUNCTION |= 0x00020000;
or_l(0x00020000, &GPIO1_ENABLE);
or_l(0x00020000, &GPIO1_FUNCTION);
#elif CONFIG_BACKLIGHT == BL_PA14_LO || CONFIG_BACKLIGHT == BL_PA14_HI
PACR1 &= ~0x3000; /* Set PA14 (backlight control) to GPIO */
or_b(0x40, &PAIORH); /* ..and output */