void _backlight_hw_enable(bool on)
{
#ifdef HAVE_LCD_SLEEP
if (on)
/* If the fade-out is interrupted, enabled will be true, but
lcd_awake() needs to be called anyways because the LCD
may be sleeping.
*/
lcd_awake();
#endif
if (on == enabled)
return;
if (on)
{
GPIO_SET_BITWISE(GPIOB_OUTPUT_VAL, 0x08);
GPIO_SET_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
sleep(HZ/100);
current_dim = 16;
_backlight_set_brightness(brightness);
}
else
{
GPIO_CLEAR_BITWISE(GPIOD_OUTPUT_VAL, 0x80);
GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x08);
sleep(HZ/20);
}
enabled = on;
}
int _backlight_init(void)
{
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
/* set backlight on by default, since the screen is unreadable without it */
_backlight_on();
return true;
}
void _backlight_off(void)
{
_backlight_set_brightness(0);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false); /* power off visible display */
#endif
}
bool _backlight_init(void)
{
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
_backlight_on();
return true; /* Backlight always ON after boot. */
}
bool _backlight_init(void)
{
IO_CLK_PWM1C = 0x58D; /* as found in OF */
_backlight_set_brightness(backlight_brightness);
return true;
}
void _backlight_off(void)
{
/* there is no real on/off but we can set to 0 brightness */
_backlight_set_brightness(0);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false); /* power off visible display */
#endif
}
bool _backlight_init(void)
{
imx233_pinctrl_acquire(0, 10, "backlight_enable");
imx233_pinctrl_set_function(0, 10, PINCTRL_FUNCTION_GPIO);
imx233_pinctrl_enable_gpio(0, 10, true);
imx233_pinctrl_set_gpio(0, 10, true);
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
return true;
}
void system_exception_wait(void)
{
/* make sure lcd and backlight are on */
lcd_update();
_backlight_on();
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
/* wait until button release (if a button is pressed) */
while(button_read_device());
/* then wait until next button press */
while(!button_read_device());
}
void _backlight_on(void)
{
#ifdef HAVE_LCD_ENABLE
lcd_enable(true); /* power on lcd + visible display */
#endif
#if (CONFIG_BACKLIGHT_FADING != BACKLIGHT_FADING_SW_SETTING) /* in bootloader/sim */
/* if we set the brightness to the settings value, then fading up
* is glitchy */
_backlight_set_brightness(backlight_brightness);
#endif
}
bool _backlight_init(void)
{
/* Set default LED register value */
mc13783_write(MC13783_LED_CONTROL0,
MC13783_LED_CONTROL0_BITS | MC13783_LEDEN);
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
/* Our PWM and I-Level is different than retailos (but same apparent
* brightness), so init to our default. */
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
#else
/* Use default PWM */
backlight_pwm_bits = mc13783_read(MC13783_LED_CONTROL2) & MC13783_LEDMDDC;
#endif
return true;
}
void system_exception_wait(void)
{
/* stop hadrware watchdog, IRQs are stopped */
imx233_rtc_enable_watchdog(false);
/* make sure lcd and backlight are on */
lcd_update();
_backlight_on();
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
/* wait until button release (if a button is pressed) */
#ifdef HAVE_BUTTON_DATA
int data;
while(button_read_device(&data));
/* then wait until next button press */
while(!button_read_device(&data));
#else
while(button_read_device());
/* then wait until next button press */
while(!button_read_device());
#endif
}
void __backlight_dim(bool dim_now)
{
_backlight_set_brightness(dim_now ?
DEFAULT_BRIGHTNESS_SETTING :
DEFAULT_DIMNESS_SETTING);
}
