BLM

Functions
s32	BLM_Init (u32 mode)
s32	BLM_ConfigSet (blm_config_t config)
blm_config_t	BLM_ConfigGet (void)
s32	BLM_PrepareCol (void)
s32	BLM_GetRow (void)
s32	BLM_ButtonHandler (void *_notify_hook)
s32	BLM_DIN_PinGet (u32 pin)
u8	BLM_DIN_SRGet (u32 sr)
s32	BLM_DOUT_PinSet (u32 colour, u32 pin, u32 value)
s32	BLM_DOUT_PinGet (u32 colour, u32 pin)
s32	BLM_DOUT_SRSet (u32 colour, u32 sr, u8 value)
u8	BLM_DOUT_SRGet (u32 colour, u32 sr)
Variables
u8	blm_led_row [BLM_NUM_COLOURS][BLM_NUM_ROWS]

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Detailed Description

Button/Single/Duo/Triple (RGB)-LED driver

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Function Documentation

s32 BLM_ButtonHandler

(

void *

_notify_hook

)

This function should be called from a task to check for button changes periodically. Events (change from 0->1 or from 1->0) will be notified via the given callback function <notify_hook> with following parameters: <notifcation-hook>(s32 pin, s32 value)

Returns:

< 0 on errors

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blm_config_t BLM_ConfigGet

(

void

)

Returns current BLM configuration

Returns:

config structure see BLM_ConfigSet()

s32 BLM_ConfigSet

(

blm_config_t

config

)

Configures the BLM driver.

See blm.h for more informations

Parameters:

[in]

config

a structure with following members: config.dout_l1_sr (LED anodes, left side) config.dout_r1_sr (LED anodes, right side) config.dout_cathodes_sr1 (LED cathodes and button selection lines (2 * 4 bit)) config.dout_cathodes_sr2 (optional second SR which outputs the same values) config.cathodes_inv_mask (inversion mask for cathodes) config.dout_l2_sr (for 2-colour LED option) config.dout_r2_sr (for 2-colour LED option) config.dout_l3_sr (for 3-colour LED option) config.dout_r3_sr (for 3-colour LED option) config.debounce_delay (used if debounce mode >= 1)

Returns:

< 0 if initialisation failed

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s32 BLM_DIN_PinGet

(

u32

pin

)

Returns value of BLM DIN pin

Parameters:

[in]

pin

number of pin

Returns:

pin value (0 or 1)

< 0 if pin not available

u8 BLM_DIN_SRGet

(

u32

sr

)

Returns value of BLM DIN "virtual" shift register

Parameters:

[in]

sr

number of shift register

Returns:

< 0 if pin not available

s32 BLM_DOUT_PinGet	(	u32	colour,
		u32	pin
	)

Returns red/green/blue LED status

Parameters:

[in]	colour	the colour selection (0/1/2)
[in]	pin	the pin number

Returns:

< 0 if pin not available

s32 BLM_DOUT_PinSet	(	u32	colour,
		u32	pin,
		u32	value
	)

Sets red/green/blue LED to 0 or Vss

Parameters:

[in]	colour	the colour selection (0/1/2)
[in]	pin	the pin number
[in]	value	the pin value

Returns:

< 0 if pin not available

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u8 BLM_DOUT_SRGet	(	u32	colour,
		u32	sr
	)

Returns content of red or green "virtual" shift register

Parameters:

[in]	colour	the colour selection (0/1/2)
[in]	sr	the shift register number

Returns:

< 0 if SR not available

s32 BLM_DOUT_SRSet	(	u32	colour,
		u32	sr,
		u8	value
	)

Sets red or green "virtual" shift register

Parameters:

[in]	colour	the colour selection (0/1/2)
[in]	sr	the shift register number
[in]	value	the shift register value

Returns:

< 0 if SR not available

s32 BLM_GetRow

(

void

)

This function gets the DIN values of the selected column.
It should be called from the APP_SRIO_ServiceFinish() hook

Returns:

< 0 on errors

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s32 BLM_Init

(

u32

mode

)

Initializes the button LED matrix Should be called from Init() during startup

Parameters:

[in]

mode

currently only mode 0 supported

Returns:

< 0 if initialisation failed

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s32 BLM_PrepareCol

(

void

)

This function prepares the DOUT register to drive a column.
It should be called from the APP_SRIO_ServicePrepare()

Returns:

< 0 on errors

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Variable Documentation

u8 blm_led_row[BLM_NUM_COLOURS][BLM_NUM_ROWS]