//added for AU3.B-322 2009.10.23 wesley start
void pnx_bl_shutdown(struct platform_device *pdev)
{
/* ACER BobIHLee@20100505, support AS1 project*/
#if (defined ACER_L1_AU4) || (defined ACER_L1_K2)|| defined (ACER_L1_AS1)
/* End BobIHLee@20100505*/
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0); /* backlight OFF */
mdelay(3);
#else
pnx_gpio_set_mode(pnx_bl_pdata->gpio, GPIO_MODE_MUX1);
writel(0, pnx_bl_pdata->pwm_tmr);
clk_disable(pwm1Clk);
#endif
}
static int pnx_bl_set_intensity(struct backlight_device *bd)
{
/* ACER BobIHLee@20100505, support AS1 project*/
#if (defined ACER_L1_AU4) || (defined ACER_L1_K2) || defined (ACER_L1_AS1)
/* End BobIHLee@20100505*/
int intensity = bd->props.brightness;
int Jump_level;
int i;
if (bd->props.power != FB_BLANK_UNBLANK)
intensity = 0;
if (bd->props.fb_blank != FB_BLANK_UNBLANK)
intensity = 0;
if ( intensity == BackLight_Level ) {
return 0;
}
if ( BackLight_Level == 0 ) {
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 1);
udelay(30);
Jump_level = 16 - intensity ;
for ( i = 0 ; i < Jump_level ; i++) {
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0);
udelay(1);
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 1);
udelay(1);
}
BackLight_Level = intensity;
} else {
if ( intensity == 0 ) {
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0); /* backlight OFF */
mdelay(10);
BackLight_Level = 0 ;
return 0;
} else if ( BackLight_Level > intensity ) {
Jump_level = BackLight_Level - intensity ;
for ( i = 0 ; i < Jump_level ; i++) {
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0);
udelay(1);
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 1);
udelay(1);
}
BackLight_Level = intensity;
}else {
Jump_level = 16 + BackLight_Level - intensity ;
for ( i = 0 ; i < Jump_level ; i++) {
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0);
udelay(1);
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 1);
udelay(1);
}
BackLight_Level = intensity;
}
}
return 0;
#else
int intensity = bd->props.brightness;
int ret=0;
if (bd->props.power != FB_BLANK_UNBLANK)
intensity = 0;
if (bd->props.fb_blank != FB_BLANK_UNBLANK)
intensity = 0;
if ( intensity < bd->props.max_brightness )
{
pnx_gpio_set_mode(pnx_bl_pdata->gpio, GPIO_MODE_MUX1);
if ((intensity !=0) && (clk_get_usecount(pwm1Clk) == 0))
clk_enable(pwm1Clk);
ret = writel(intensity, pnx_bl_pdata->pwm_tmr);
if (intensity==0)
clk_disable(pwm1Clk);
}
else
{
/* Write value even if not used for pnx_bl_get_intensity usage */
ret = writel(intensity, pnx_bl_pdata->pwm_tmr);
clk_disable(pwm1Clk);
pnx_gpio_set_mode(pnx_bl_pdata->gpio, GPIO_MODE_MUX0);
gpio_set_value(pnx_bl_pdata->gpio, 1);
}
return ret;
#endif
}
static int pnx_bl_probe(struct platform_device *pdev)
{
/* ACER Bright Lee, 2010/7/21, silent boot don't need turn on backlight during booting { */
extern int getOnCause(void);
/* } ACER Bright Lee, 2010/7/21 */
/* ACER BobIHLee@20100505, support AS1 project*/
#if (defined ACER_L1_AU4) || (defined ACER_L1_K2)|| defined (ACER_L1_AS1)
/* End BobIHLee@20100505*/
//struct backlight_device *pnx_backlight_device;
//int ret;
pnx_bl_pdata = pdev->dev.platform_data;
if (!pnx_bl_pdata)
return -ENODEV;
pnx_backlight_device = backlight_device_register("pnx-bl",
&pdev->dev, NULL,
&pnx_bl_ops);
if (IS_ERR(pnx_backlight_device))
return PTR_ERR(pnx_backlight_device);
platform_set_drvdata(pdev, pnx_backlight_device);
//Config GPIO
pnx_gpio_request(pnx_bl_pdata->gpio);
pnx_gpio_set_direction(pnx_bl_pdata->gpio, GPIO_DIR_OUTPUT);
pnx_gpio_set_mode(pnx_bl_pdata->gpio, pnx_bl_pdata->pin_mux);
//Selwyn 2009/1/20 modified for Acer power off charging
#if 0
//make sure the initial state is off
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 0); /* default: backlight OFF */
mdelay(3);
//turn on backlight at max level first
pnx_gpio_write_pin(pnx_bl_pdata->gpio, 1);
udelay(1);
#endif
#ifdef DISABLE_CHARGING_ANIMATION
if (getOnCause() == 2)
{
BackLight_Level = HW_LEVEL_MIN;
}
else
{
BackLight_Level = 4;
}
#else
{
BackLight_Level = HW_LEVEL_MAX;
}
#endif
/* ACER Bright Lee, 2010/7/21, silent boot don't need turn on backlight during booting { */
#if defined(ENABLE_SILENT_ALL) || defined(ENABLE_SILENT_BASIC)
if (getOnCause() == 4)
{
BackLight_Level = HW_LEVEL_MIN;
}
#endif
/* } ACER Bright Lee, 2010/7/21 */
//~Selwyn 2009/1/20 modified
pnx_backlight_device->props.power = FB_BLANK_UNBLANK;
pnx_backlight_device->props.brightness = HW_LEVEL_MAX;
pnx_backlight_device->props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
//BackLight_Level = HW_LEVEL_MAX;
return 0;
#else
/* struct pnx_bl_platform_data *pdata = pdev->dev.platform_data; */
int ret;
/* pnx_bl_pdev = pdev; */
pnx_bl_pdata = pdev->dev.platform_data;
if (!pnx_bl_pdata)
return -ENODEV;
pwm1Clk = clk_get(0, pnx_bl_pdata->pwm_clk);
clk_enable(pwm1Clk);
ret = writel(HW_LEVEL_MAX, pnx_bl_pdata->pwm_pf);
// pnx_backlight_device = backlight_device_register("lcd-backlight",
pnx_backlight_device = backlight_device_register("pnx-bl",
&pdev->dev, NULL,
&pnx_bl_ops);
if (IS_ERR(pnx_backlight_device))
return PTR_ERR(pnx_backlight_device);
platform_set_drvdata(pdev, pnx_backlight_device);
gpio_request(pnx_bl_pdata->gpio, pdev->name);
gpio_direction_output(pnx_bl_pdata->gpio, 1 /* TBD LPA*/);
pnx_gpio_set_mode(pnx_bl_pdata->gpio, GPIO_MODE_MUX1);
pnx_backlight_device->props.power = FB_BLANK_UNBLANK;
pnx_backlight_device->props.brightness = HW_LEVEL_MAX;
/* ACER Bright Lee, 2010/7/21, silent boot don't need turn on backlight during booting { */
#if defined(ENABLE_SILENT_ALL) || defined(ENABLE_SILENT_BASIC)
if (getOnCause() == 4)
{
pnx_backlight_device->props.brightness = HW_LEVEL_MIN;
}
else
{
pnx_backlight_device->props.brightness = HW_LEVEL_MAX;
}
#endif
/* } ACER Bright Lee, 2010/7/21 */
pnx_backlight_device->props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
clk_disable(pwm1Clk);
pnx_bl_set_intensity(pnx_backlight_device);
#ifdef CONFIG_HAS_EARLYSUSPEND
register_early_suspend(&pnx_bl_earlys);
#endif
return 0;
#endif
}
int pnx_gpio_set_mode_gpio(int gpio)
{
int muxmode = gpio >= GPIO_B0 ? GPIO_MODE_MUX1 : GPIO_MODE_MUX0;
return pnx_gpio_set_mode(gpio, muxmode);
}
