Backlight functions

Functions
EXTERN_C CCAUXDLL_API BACKLIGHTHANDLE CCAUXDLL_CALLING_CONV	GetBacklight (void)
EXTERN_C CCAUXDLL_API void CCAUXDLL_CALLING_CONV	Backlight_release (BACKLIGHTHANDLE)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getIntensity (BACKLIGHTHANDLE, uint8_t *intensity)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_setIntensity (BACKLIGHTHANDLE, uint8_t intensity)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getStatus (BACKLIGHTHANDLE, uint8_t *status)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getHWStatus (BACKLIGHTHANDLE, bool *status)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_startAutomaticBL (BACKLIGHTHANDLE)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_stopAutomaticBL (BACKLIGHTHANDLE)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getAutomaticBLStatus (BACKLIGHTHANDLE, uint8_t *status)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_setAutomaticBLParams (BACKLIGHTHANDLE, bool bSoftTransitions)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getAutomaticBLParams (BACKLIGHTHANDLE, bool *bSoftTransitions, float64_t *k)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_setAutomaticBLFilter (BACKLIGHTHANDLE, uint32_t averageWndSize, uint32_t rejectWndSize, uint32_t rejectDeltaInLux, LightSensorSamplingMode mode)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getAutomaticBLFilter (BACKLIGHTHANDLE, uint32_t *averageWndSize, uint32_t *rejectWndSize, uint32_t *rejectDeltaInLux, LightSensorSamplingMode *mode)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getLedDimming (BACKLIGHTHANDLE, CCStatus *status)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_setLedDimming (BACKLIGHTHANDLE, CCStatus status)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_setActive (BACKLIGHTHANDLE, ComponentLocation location)
EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV	Backlight_getActive (BACKLIGHTHANDLE, ComponentLocation *location)

Detailed Description

Functions in the Backlight class

Function Documentation

Backlight_getActive()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getActive	(	BACKLIGHTHANDLE	,
		ComponentLocation *	location
	)

Get active backlight.

Supported Platform(s): Yukon, V510, V710, V1000, V1200

Parameters

Location

Location of the active Backlight.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_getAutomaticBLFilter()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getAutomaticBLFilter	(	BACKLIGHTHANDLE	,
		uint32_t *	averageWndSize,
		uint32_t *	rejectWndSize,
		uint32_t *	rejectDeltaInLux,
		LightSensorSamplingMode *	mode
	)

Get light sensor filter parameters for automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Parameters

averageWndSize	The average window size in nr of samples.
rejectWndSize	The reject window size in nr of samples.
rejectDeltaInLux	The reject delta in lux.
mode	The configured sampling mode.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_getAutomaticBLParams()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getAutomaticBLParams	(	BACKLIGHTHANDLE	,
		bool *	bSoftTransitions,
		float64_t *	k
	)

Get parameters for automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Parameters

bSoftTransitions	Soft transitions used?
k	K value.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_getAutomaticBLStatus()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getAutomaticBLStatus	(	BACKLIGHTHANDLE	,
		uint8_t *	status
	)

Get status from automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Parameters

status

1=running, 0=stopped.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_getHWStatus()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getHWStatus	(	BACKLIGHTHANDLE	,
		bool *	status
	)

Get backlight hardware status.

Parameters

status

Backlight controller status. true: All backlight drivers works ok, false: one or more backlight drivers are faulty.

Supported Platform(s): XL, XM, XS, XA

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Example Usage:

  bool backlightStatus = false;
  err = Backlight_getHWStatus(pBacklight, &backlightStatus);
  if (err == ERR_SUCCESS)
  {
    if (backlightStatus)
      printf("Backlight hardware status: OK\n"); 
    else
      printf("Backlight hardware status: not OK, one or more backlight drivers are faulty\n"); 
  }
  else if (err == ERR_NOT_SUPPORTED)
  {
    printf("Backlight_getHWStatus: Not supported!\n");  
  }
  else
  {
    printf("Error(%d) in function Backlight_getHWStatus: %s\n", err, GetErrorStringA(err));
  }

Backlight_getIntensity()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getIntensity	(	BACKLIGHTHANDLE	,
		uint8_t *	intensity
	)

Get backlight intensity. Note that there might be hardware limitations, limiting the minimum and/or maximum value to other than (1..255).

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Parameters

intensity

The current backlight intensity (1..255).

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Example Usage:

  err = Backlight_getIntensity(pBacklight, &value);
 
  if (err == ERR_SUCCESS)
  {
    printf("Current backlight intensity (0-255): %d\n", value);
  }
  else
  {
    printf("Error(%d) in function Backlight_getIntensity: %s\n", err, GetErrorStringA(err));
  }

Backlight_getLedDimming()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getLedDimming	(	BACKLIGHTHANDLE	,
		CCStatus *	status
	)

Get the current setting for Led dimming. If enabled, the function automatically dimms the LED according to the current backlight setting; Low backlight gives less bright LED. This works with manual backlight setting and automatic backlight, but only if the led is set to pure red, green or blue color. If another color is being used, this functionality must be implemented separately.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Parameters

status

Enabled/Disabled

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_getStatus()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_getStatus	(	BACKLIGHTHANDLE	,
		uint8_t *	status
	)

Get backlight controller status. Deprecated, use Backlight_getHWStatus instead.

Supported Platform(s): XL, XM

Parameters

status

Backlight controller status. Bit 0: status controller 1. Bit 1: status controller 2. Bit 2: status controller 3. Bit 3: status controller 4. 1=normal, 0=fault.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Example Usage:

  err = Backlight_getStatus(pBacklight, &value);
  if (err == ERR_SUCCESS)
  {
    printf("Backlight status: \nBL1:%s\nBL2:%s\nBL3:%s\nBL4:%s\n",
      (value & 0x01)? "OK" : "NOT OK or missing",  
      (value & 0x02)? "OK" : "NOT OK or missing",  
      (value & 0x04)? "OK" : "NOT OK or missing",  
      (value & 0x08)? "OK" : "NOT OK or missing");
  }
  else if (err == ERR_NOT_SUPPORTED)
  {
    printf("Backlight_getStatus: Not supported!\n");  
  }
  else
  {
    printf("Error(%d) in function Backlight_getStatus: %s\n", err, GetErrorStringA(err));
  }

Backlight_release()

EXTERN_C CCAUXDLL_API void CCAUXDLL_CALLING_CONV CrossControl::Backlight_release

(

BACKLIGHTHANDLE

)

Delete the backlight object.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Returns

-

Example Usage:

  BACKLIGHTHANDLE pBacklight = ::GetBacklight();
  assert(pBacklight);
 
  if(argc == 2) 
  {
    change_backlight(pBacklight, (unsigned char)atoi(argv[1]));
  }
  else
  {
    change_backlight(pBacklight, -1);
  }
 
  Backlight_release(pBacklight);

Backlight_setActive()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_setActive	(	BACKLIGHTHANDLE	,
		ComponentLocation	location
	)

Set active backlight.

Supported Platform(s): Yukon, V510, V710, V1000, V1200

Parameters

location

Location of the Backlight to set Active. Max number depends from platform.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_setAutomaticBLFilter()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_setAutomaticBLFilter	(	BACKLIGHTHANDLE	,
		uint32_t	averageWndSize,
		uint32_t	rejectWndSize,
		uint32_t	rejectDeltaInLux,
		LightSensorSamplingMode	mode
	)

Set light sensor filter parameters for automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Parameters

averageWndSize	The average window size in nr of samples.
rejectWndSize	The reject window size in nr of samples.
rejectDeltaInLux	The reject delta in lux.
mode	The configured sampling mode.

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_setAutomaticBLParams()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_setAutomaticBLParams	(	BACKLIGHTHANDLE	,
		bool	bSoftTransitions
	)

Set parameters for automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Parameters

bSoftTransitions

Use soft transitions?

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_setIntensity()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_setIntensity	(	BACKLIGHTHANDLE	,
		uint8_t	intensity
	)

Set backlight intensity. Note that there might be hardware limitations, limiting the minimum and/or maximum value to other than (1..255).

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Parameters

intensity

The backlight intensity to set (1..255).

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Example Usage:

  err = Backlight_setIntensity(pBacklight, value);
 
  if (err == ERR_SUCCESS)
  {
    printf("Setting backlight intensity: %d\n", value);
  }
  else
  {
    printf("Error(%d) in function Backlight_setIntensity: %s\n", err, GetErrorStringA(err));
  }

Backlight_setLedDimming()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_setLedDimming	(	BACKLIGHTHANDLE	,
		CCStatus	status
	)

Enable/disable Led dimming. If enabled, the function automatically dimms the LED according to the current backlight setting; Low backlight gives less bright LED. This works with manual backlight setting and automatic backlight, but only if the led is set to pure red, green or blue color. If another color is being used, this functionality must be implemented separately.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Parameters

status

Enabled/Disabled

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_startAutomaticBL()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_startAutomaticBL

(

BACKLIGHTHANDLE

)

Start automatic backlight control. Note that reading the light sensor at the same time as running the automatic backlight control is not supported.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

Backlight_stopAutomaticBL()

EXTERN_C CCAUXDLL_API eErr CCAUXDLL_CALLING_CONV CrossControl::Backlight_stopAutomaticBL

(

BACKLIGHTHANDLE

)

Stop automatic backlight control.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, V700, Yukon, V510, V710, V1000, V1200

Returns

error status. 0 = ERR_SUCCESS, otherwise error code. See the enum eErr for details.

GetBacklight()

EXTERN_C CCAUXDLL_API BACKLIGHTHANDLE CCAUXDLL_CALLING_CONV CrossControl::GetBacklight

(

void

)

Factory function that creates instances of the Backlight object.

Supported Platform(s): XL, XL5, XM, XM9, XS, XA, VC, VA, VS, VI2, V700, Yukon, V510, V710, V1000, V1200

Returns

BACKLIGHTHANDLE to an allocated Backlight object. The returned handle needs to be deallocated using the Backlight_release(BACKLIGHTHANDLE) method when it's no longer needed. Returns NULL if it fails to allocate memory.

Example Usage:

 
  BACKLIGHTHANDLE pBacklight = ::GetBacklight();
  assert(pBacklight);
 
  if(argc == 2) 
  {
    change_backlight(pBacklight, (unsigned char)atoi(argv[1]));
  }
  else
  {
    change_backlight(pBacklight, -1);
  }
 
  Backlight_release(pBacklight);