static void cmc623_pwm_backlight_ctl(struct platform_device *pdev, int intensity)
{
int tune_level;
// brightness tuning
tune_level = cmc623_pwm_get_tune(intensity);
printk("[cmc]%d(%d)\n", intensity, tune_level);
cmc623_pwm_apply_brightness(pdev, tune_level);
}
/*for measuring luminance*/
void cmc623_pwm_set_brightness(int brightness)
{
/*unsigned long flags;*/
printk("%s: value=%d\n", __func__, brightness);
mutex_lock(&cmc623_pwm_mutex);
cmc623_pwm_apply_brightness(bl_pdev, brightness);
mutex_unlock(&cmc623_pwm_mutex);
}
//for measuring luminance
void cmc623_pwm_set_brightness(int brightness)
{
//unsigned long flags;
printk("%s: value=%d\n", __func__, brightness);
//spin_lock_irqsave(&cmc623_pwm_lock, flags);
//spin_lock(&cmc623_pwm_lock);
mutex_lock(&cmc623_pwm_mutex);
cmc623_pwm_apply_brightness(bl_pdev, brightness);
//spin_unlock_irqrestore(&cmc623_pwm_lock, flags);
//spin_unlock(&cmc623_pwm_lock);
mutex_unlock(&cmc623_pwm_mutex);
}
static void cmc623_pwm_backlight_ctl(struct platform_device *pdev, int intensity)
{
int tune_level;
int in_one = 2;
int in_two = 200;
int in_three = 255;
int out_one = 18;
int out_two = 75;
int out_three = 255;
if (intensity >= 0 && intensity <= in_one)
{
//e.g input 25, should output (25 * 80) / 50 = 40
intensity = (intensity * out_one) / in_one;
}
else if (intensity > in_one && intensity <= in_two)
{
//e.g. input 100, should output 80 + ((100-50) / (220-50) * (100-80)) = 85
intensity = out_one + ( ((intensity - in_one) * (out_two - out_one)) / (in_two - in_one) );
}
else if (intensity > in_two)
{
//e.g. input 240, should output 100 + ((240-220) * (250-100) / (250-220)) = 200
//e.g. input 250, should output 100 + ((250-220) * (250-100) / (250-220)) = 250
intensity = out_two + ( ((intensity - in_two) * (out_three - out_two)) / (in_three - in_two) );
}
if (intensity > 255)
{
intensity = 255;
}
intensity = (intensity * 1550) / 255;
if (intensity > 1550) intensity = 1550;
if (intensity < 0) intensity = 0;
tune_level = intensity;
cmc623_pwm_apply_brightness(pdev, tune_level);
}
static void cmc623_pwm_backlight_ctl(struct platform_device *pdev, int intensity)
{
int tune_level;
// brightness tuning
if(intensity >= MID_BRIGHTNESS_LEVEL)
tune_level = (intensity - MID_BRIGHTNESS_LEVEL) * (MAX_BACKLIGHT_VALUE-MID_BACKLIGHT_VALUE) / (MAX_BRIGHTNESS_LEVEL-MID_BRIGHTNESS_LEVEL) + MID_BACKLIGHT_VALUE;
else if(intensity >= LOW_BRIGHTNESS_LEVEL)
tune_level = (intensity - LOW_BRIGHTNESS_LEVEL) * (MID_BACKLIGHT_VALUE-LOW_BACKLIGHT_VALUE) / (MID_BRIGHTNESS_LEVEL-LOW_BRIGHTNESS_LEVEL) + LOW_BACKLIGHT_VALUE;
else if(intensity >= DIM_BACKLIGHT_LEVEL)
tune_level = (intensity - DIM_BACKLIGHT_LEVEL) * (LOW_BACKLIGHT_VALUE-DIM_BACKLIGHT_VALUE) / (LOW_BRIGHTNESS_LEVEL-DIM_BACKLIGHT_LEVEL) + DIM_BACKLIGHT_VALUE;
else if(intensity > 0)
tune_level = (intensity) * (DIM_BACKLIGHT_VALUE) / (DIM_BACKLIGHT_LEVEL);
else
tune_level = intensity;
printk("[cmc]%d(%d)\n", intensity, tune_level);
cmc623_pwm_apply_brightness(pdev, tune_level);
}
static void cmc623_pwm_backlight_ctl(struct platform_device *pdev, int intensity)
{
int tune_level;
/* brightness tuning*/
if (intensity >= MID_BRIGHTNESS_LEVEL)
tune_level = (intensity - MID_BRIGHTNESS_LEVEL) * (MAX_BACKLIGHT_VALUE-MID_BACKLIGHT_VALUE) / (MAX_BRIGHTNESS_LEVEL-MID_BRIGHTNESS_LEVEL) + MID_BACKLIGHT_VALUE;
else if (intensity >= LOW_BRIGHTNESS_LEVEL)
tune_level = (intensity - LOW_BRIGHTNESS_LEVEL) * (MID_BACKLIGHT_VALUE-LOW_BACKLIGHT_VALUE) / (MID_BRIGHTNESS_LEVEL-LOW_BRIGHTNESS_LEVEL) + LOW_BACKLIGHT_VALUE;
else if (intensity >= DIM_BRIGHTNESS_LEVEL)
tune_level = (intensity - DIM_BRIGHTNESS_LEVEL) * (LOW_BACKLIGHT_VALUE-DIM_BACKLIGHT_VALUE) / (LOW_BRIGHTNESS_LEVEL-DIM_BRIGHTNESS_LEVEL) + DIM_BACKLIGHT_VALUE;
else if (intensity > 0)
tune_level = DIM_BACKLIGHT_VALUE;
else
tune_level = intensity;
/*printk("--- [cmc]%d(%d)---\n", intensity, tune_level);*/
//printk("[CMC623:INFO] Intensity : %d, Tuned Intensity : %d\n",intensity, tune_level);
cmc623_pwm_apply_brightness(pdev, tune_level);
}