static void ktd259b_backlight_earlyresume(struct early_suspend *desc)
{
struct ktd259b_bl_data *ktd259b = container_of(desc, struct ktd259b_bl_data,
early_suspend_desc);
struct backlight_device *bl = platform_get_drvdata(ktd259b->pdev);
struct timespec ts;
struct rtc_time tm;
#ifdef PWM_BRIGHTNESS
int temp_brightness = 0;
#endif
gpio_set_value(backlight_pwm,1);
#ifdef PWM_BRIGHTNESS
vc_display_bus_write(0,0x51,&temp_brightness,1);
mdelay(100);
lcd_backlight_control(5);
#endif
getnstimeofday(&ts);
rtc_time_to_tm(ts.tv_sec, &tm);
backlight_mode=BACKLIGHT_RESUME;
if(cabc_status)
{
backlight_cabc_on();
}
else
{
backlight_cabc_off();
}
printk("[%02d:%02d:%02d.%03lu][BACKLIGHT] earlyresume\n", tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec);
backlight_update_status(bl);
}
static void aat1402iuq_BacklightCtrlbySingleWire(int tune_level)
{
int pulse;
if(tune_level <= 0)
{
gpio_direction_output(backlight_pin,0);
mdelay(1);
#if defined(__BACKLIGHT_DEBUG__)
printk("[BACKLIGHT] Backlight Off \n");
#endif
}
else
{
lcd_backlight_control(tune_level);
}
udelay(550); // over 60us
}
/* input: intensity in percentage 0% - 100% */
static int ktd_backlight_update_status(struct backlight_device *bd)
{
int user_intensity = bd->props.brightness;
int tune_level = 0;
int i;
BLDBG("[BACKLIGHT] update_status ==> user_intensity : %d\n",
user_intensity);
#if CABC_FEATURE_ON
g_bl.props.brightness = user_intensity;
#endif
current_intensity = user_intensity;
if (bd->props.power != FB_BLANK_UNBLANK)
user_intensity = 0;
if (bd->props.fb_blank != FB_BLANK_UNBLANK)
user_intensity = 0;
if (bd->props.state & BL_CORE_SUSPENDED)
printk("[BACKLIGHT] update_status ==> user_intensity : %d\n",
user_intensity);
if (backlight_mode != BACKLIGHT_RESUME) {
BLDBG("[BACKLIGHT] suspend mode %d\n", backlight_mode);
return 0;
}
if(user_intensity > 0) {
if(user_intensity < MIN_BRIGHTNESS_VALUE) {
tune_level = DIMMING_VALUE; //DIMMING
} else if (user_intensity == MAX_BRIGHTNESS_VALUE) {
tune_level = brt_table[MAX_BRT_STAGE-1].tune_level;
} else {
for(i = 0; i < MAX_BRT_STAGE; i++) {
if(user_intensity <= brt_table[i].level ) {
tune_level = brt_table[i].tune_level;
break;
}
}
}
}
BLDBG("[BACKLIGHT] update_status ==> tune_level : %d\n", tune_level);
if (user_intensity >= 0) {
lcd_backlight_control(tune_level);
}
return 0;
}
static ssize_t brightness_pulse_setting(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct lcd_info *lcd = dev_get_drvdata(dev);
int rc;
BLDBG("[BACKLIGHT] brightness_pulse_setting\n");
rc = strict_strtoul(buf, (unsigned int)0,
(unsigned long *)&pulse_value);
if (rc < 0)
return rc;
else {
if (pulse_value <= 32 && pulse_value >= 1) {
BLDBG("brightness_pulse_setting, pulse value=%d\n",
pulse_value);
lcd_backlight_control(pulse_value);
} else
BLDBG("out of range !!\n");
}
return size;
}
/* input: intensity in percentage 0% - 100% */
static int ktd259b_backlight_update_status(struct backlight_device *bd)
{
int user_intensity = bd->props.brightness;
int tune_level = 0;
int pulse;
int i;
BLDBG("[BACKLIGHT] ktd259b_backlight_update_status ==> user_intensity : %d\n", user_intensity);
if(backlight_mode==BACKLIGHT_RESUME){
if(user_intensity > 0) {
if(user_intensity < MIN_BRIGHTNESS_VALUE) {
tune_level = DIMMING_VALUE; //DIMMING
} else if (user_intensity == MAX_BRIGHTNESS_VALUE) {
tune_level = brt_table_ktd[MAX_BRT_STAGE_KTD-1].tune_level;
} else {
for(i = 0; i < MAX_BRT_STAGE_KTD; i++) {
if(user_intensity <= brt_table_ktd[i].level ) {
tune_level = brt_table_ktd[i].tune_level;
break;
}
}
}
}
BLDBG("[BACKLIGHT] ktd259b_backlight_update_status ==> tune_level : %d\n", tune_level);
if (real_level==tune_level)
{
return 0;
}
else
{
/* if(real_level == 0)
{
mdelay(200);
}
*/
if(tune_level<=0)
{
gpio_set_value(backlight_pin,0);
mdelay(3);
}
else
{
if( real_level<=tune_level)
{
pulse = tune_level - real_level;
}
else
{
pulse = 32 - (real_level - tune_level);
}
//pulse = MAX_BRIGHTNESS_IN_BLU -tune_level;
if (pulse==0)
{
return 0;
}
lcd_backlight_control(pulse);
}
real_level = tune_level;
return 0;
}
}
return 0;
}
/* input: intensity in percentage 0% - 100% */
static int aat1401_backlight_update_status(struct backlight_device *bd)
{
struct aat1401_bl_data *aat1401= dev_get_drvdata(&bd->dev);
int user_intensity = bd->props.brightness;
int tune_level = 0;
int pulse;
int i;
BLDBG("[BACKLIGHT] aat1401_backlight_update_status ==> user_intensity : %d\n", user_intensity);
if((check_initial==1)&&(backlight_mode==BACKLIGHT_RESUME))
{
if(gLcdfbEarlySuspendStopDraw==0)
{
if(user_intensity > 0) {
if(user_intensity < MIN_BRIGHTNESS_VALUE) {
tune_level = DIMMING_VALUE; //DIMMING
} else if (user_intensity == MAX_BRIGHTNESS_VALUE) {
tune_level = brt_table_ktd[MAX_BRT_STAGE_KTD-1].tune_level;
} else {
for(i = 0; i < MAX_BRT_STAGE_KTD; i++) {
if(user_intensity <= brt_table_ktd[i].level ) {
tune_level = brt_table_ktd[i].tune_level;
break;
}
}
}
}
//printk("[BACKLIGHT] aat1401_backlight_update_status ==> tune_level : %d\n", tune_level);
BLDBG("[BACKLIGHT] aat1401_backlight_update_status ==> tune_level : %d\n", tune_level);
if (real_level==tune_level)
{
return 0;
}
else
{
if(real_level == 0)
{
mdelay(400);
}
if(tune_level<=0)
{
gpio_set_value(backlight_pin,0);
mdelay(3);
}
else
{
pulse = MAX_BRIGHTNESS_IN_BLU -tune_level;
if (pulse==0)
{
return 0;
}
gpio_set_value(backlight_pin,0);
udelay(80);
lcd_backlight_control(pulse);
}
real_level = tune_level;
return 0;
}
}
}
}
static int cat4253_backlight_update_status(struct backlight_device *bd)
{
//struct cat4253_bl_data *cat4253= dev_get_drvdata(&bd->dev);
int user_intensity = bd->props.brightness;
int pulse = 0;
int i;
//printk("[BACKLIGHT] cat4253_backlight_update_status ==> user_intensity : %d\n", user_intensity);
BLDBG("[BACKLIGHT] cat4253_backlight_update_status ==> user_intensity : %d\n", user_intensity);
if(backlight_mode==BACKLIGHT_RESUME)
{
if(gLcdfbEarlySuspendStopDraw==0)
{
if(user_intensity > 0)
{
if(user_intensity < MIN_BRIGHTNESS_VALUE)
{
CurrDimmingPulse = DIMMING_VALUE; //DIMMING
}
else if (user_intensity == MAX_BRIGHTNESS_VALUE)
{
CurrDimmingPulse = brt_table_ktd[MAX_BRT_STAGE_KTD-1].tune_level;
}
else
{
for(i = 0; i < MAX_BRT_STAGE_KTD; i++)
{
if(user_intensity <= brt_table_ktd[i].level )
{
CurrDimmingPulse = brt_table_ktd[i].tune_level;
break;
}
}
}
}
else
{
BLDBG("[BACKLIGHT] cat4253_backlight_update_status ==> OFF\n");
CurrDimmingPulse = 0;
gpio_set_value(backlight_pin,0);
mdelay(10);
PrevDimmingPulse = CurrDimmingPulse;
return 0;
}
//printk("[BACKLIGHT] cat4253_backlight_update_status ==> Prev = %d, Curr = %d\n", PrevDimmingPulse, CurrDimmingPulse);
BLDBG("[BACKLIGHT] cat4253_backlight_update_status ==> Prev = %d, Curr = %d\n", PrevDimmingPulse, CurrDimmingPulse);
if (PrevDimmingPulse == CurrDimmingPulse)
{
//printk("[BACKLIGHT] cat4253_backlight_update_status ==> Same brightness\n");
PrevDimmingPulse = CurrDimmingPulse;
return 0;
}
else
{
if(PrevDimmingPulse == 0)
{
mdelay(200);
//When backlight OFF->ON, only first pulse should have 2ms HIGH level.
gpio_set_value(backlight_pin,1);
mdelay(2);//for HW 0.2, FAN5345
//udelay(2);//for HW 0.3, KTD253B
}
if(PrevDimmingPulse < CurrDimmingPulse)
{
pulse = (32 + PrevDimmingPulse) - CurrDimmingPulse;
}
else if(PrevDimmingPulse > CurrDimmingPulse)
{
pulse = PrevDimmingPulse - CurrDimmingPulse;
}
lcd_backlight_control(pulse);
//printk("[BACKLIGHT] cat4253_backlight_update_status ==> Prev = %d, Curr = %d, pulse = %d\n", PrevDimmingPulse, CurrDimmingPulse, pulse);
PrevDimmingPulse = CurrDimmingPulse;
return 0;
}
}
}
PrevDimmingPulse = CurrDimmingPulse;
return 0;
}
/* input: intensity in percentage 0% - 100% */
static int ktd259b_backlight_update_status(struct backlight_device *bd)
{
int user_intensity = bd->props.brightness;
int tune_level = 0;
int pulse;
int i;
BLDBG("[BACKLIGHT] ktd259b_backlight_update_status ==> user_intensity : %d\n", user_intensity);
g_bl.props.brightness = user_intensity;
current_intensity = user_intensity;
if(backlight_mode==BACKLIGHT_RESUME){
#ifdef PWM_BRIGHTNESS
return vc_display_bus_write(0,0x51,&user_intensity,1);
#endif
if(user_intensity > 0) {
if(user_intensity < MIN_BRIGHTNESS_VALUE) {
tune_level = DIMMING_VALUE; /* DIMMING */
}else if (user_intensity == MAX_BRIGHTNESS_VALUE) {
if(cabc_status){
tune_level = brt_table_ktd_cabc[MAX_BRT_STAGE_KTD_CABC-1].tune_level;
}else{
tune_level = brt_table_ktd[MAX_BRT_STAGE_KTD-1].tune_level;
}
}else{
if(cabc_status){
BLDBG("[BACKLIGHT] cabc ON!\n");
for(i = 0; i < MAX_BRT_STAGE_KTD_CABC; i++) {
if(user_intensity <= brt_table_ktd_cabc[i].level ) {
tune_level = brt_table_ktd_cabc[i].tune_level;
break;
}
}
}else{
BLDBG("[BACKLIGHT] cabc OFF!\n");
for(i = 0; i < MAX_BRT_STAGE_KTD; i++) {
if(user_intensity <= brt_table_ktd[i].level ) {
tune_level = brt_table_ktd[i].tune_level;
break;
}
}
}
}
}
if (real_level==tune_level){
return 0;
}else{
if(tune_level<=0){
gpio_set_value(backlight_pin,0);
mdelay(3);
}else{
if( real_level<=tune_level){
pulse = tune_level - real_level;
}else{
pulse = 32 - (real_level - tune_level);
}
if (pulse==0){
return 0;
}
BLDBG("[BACKLIGHT] ktd259b_backlight_update_status ==> tune_level : %d & pulse = %d\n", tune_level, pulse);
lcd_backlight_control(pulse);
}
real_level = tune_level;
return 0;
}
}
return 0;
}
