static void set_backlight_level(unsigned level)
{
mutex_lock(&bl_level_mutex);
PRINT_INFO(KERN_INFO "set_backlight_level: %u, last level: %u\n", level, bl_level);
level = (level > BL_MAX_LEVEL ? BL_MAX_LEVEL : (level < BL_MIN_LEVEL ? 0 : level));
bl_level = level;
if (level == 0) {
backlight_power_ctrl(OFF);
}
else {
if (level > BL_MID_LEVEL) {
level = ((level - BL_MID_LEVEL)*(BL_MAX_LEVEL - BL_MAPPED_MID_LEVEL))/(BL_MAX_LEVEL - BL_MID_LEVEL) + BL_MAPPED_MID_LEVEL;
} else {
//level = (level*BL_MAPPED_MID_LEVEL)/BL_MID_LEVEL;
level = ((level - BL_MIN_LEVEL)*(BL_MAPPED_MID_LEVEL - BL_MIN_LEVEL))/(BL_MID_LEVEL - BL_MIN_LEVEL) + BL_MIN_LEVEL;
}
#if (BL_CTL==BL_CTL_GPIO)
level = DIM_MIN - ((level - BL_MIN_LEVEL) * (DIM_MIN - DIM_MAX)) / (BL_MAX_LEVEL - BL_MIN_LEVEL);
aml_set_reg32_bits(P_LED_PWM_REG0, level, 0, 4);
#elif (BL_CTL==BL_CTL_PWM)
level = (PWM_MAX - PWM_MIN) * (level - BL_MIN_LEVEL) / (BL_MAX_LEVEL - BL_MIN_LEVEL) + PWM_MIN;
aml_write_reg32(P_PWM_PWM_D, (level << 16) | (PWM_CNT - level)); //pwm duty
#endif
if (bl_status == OFF)
backlight_power_ctrl(ON);
}
PRINT_INFO(KERN_INFO "set_backlight_level finished\n");
mutex_unlock(&bl_level_mutex);
}
static int lcd_resume(void *args)
{
args = args;
PRINT_INFO(KERN_INFO "LCD resuming...\n");
lcd_power_ctrl(ON);
backlight_power_ctrl(ON);
return 0;
}
static int lcd_suspend(void *args)
{
args = args;
PRINT_INFO(KERN_INFO "LCD suspending...\n");
backlight_power_ctrl(OFF);
lcd_power_ctrl(OFF);
return 0;
}
static int lcd_resume(void *args)
{
args = args;
PRINT_INFO(KERN_INFO "LCD resuming...\n");
lcd_power_ctrl(ON);
backlight_power_ctrl(ON);
//led_power_ctrl(RED_OFF);//Add by calvin on 16th,Dec 2013
return 0;
}
