Xbara

Data Structures
struct	XBARAControlConfig
	Defines the configuration structure of the XBARA control register. More...

Macros
#define	FSL_XBARA_DRIVER_VERSION   (MAKE_VERSION(2, 0, 5))
#define	XBARA_SELx(base, output)   (((volatile uint16_t *)(&((base)->SEL0)))[(uint32_t)(output) / 2UL])
#define	XBARA_WR_SELx_SELx(base, input, output)   XBARA_SetSignalsConnection((base), (input), (output))
#define	kXBARA_RequestInterruptEnalbe   kXBARA_RequestInterruptEnable

Typedefs
typedef enum _xbara_active_edge	xbara_active_edge_t
	XBARA active edge for detection.
typedef enum _xbar_request	xbara_request_t
	Defines the XBARA DMA and interrupt configurations.
typedef enum _xbara_status_flag_t	xbara_status_flag_t
	XBARA status flags.
typedef struct XBARAControlConfig	xbara_control_config_t
	Defines the configuration structure of the XBARA control register.

Enumerations
enum	_xbara_active_edge { kXBARA_EdgeNone = 0U , kXBARA_EdgeRising = 1U , kXBARA_EdgeFalling = 2U , kXBARA_EdgeRisingAndFalling = 3U }
	XBARA active edge for detection. More...
enum	_xbar_request { kXBARA_RequestDisable = 0U , kXBARA_RequestDMAEnable = 1U , kXBARA_RequestInterruptEnable = 2U }
	Defines the XBARA DMA and interrupt configurations. More...
enum	_xbara_status_flag_t { kXBARA_EdgeDetectionOut0 , kXBARA_EdgeDetectionOut1 , kXBARA_EdgeDetectionOut2 , kXBARA_EdgeDetectionOut3 }
	XBARA status flags. More...

XBARA functional Operation.
void	XBARA_Init (XBARA_Type *base)
	Initializes the XBARA module.
void	XBARA_Deinit (XBARA_Type *base)
	Shuts down the XBARA module.
void	XBARA_SetSignalsConnection (XBARA_Type *base, xbar_input_signal_t input, xbar_output_signal_t output)
	Sets a connection between the selected XBARA_IN[*] input and the XBARA_OUT[*] output signal.
uint32_t	XBARA_GetStatusFlags (XBARA_Type *base)
	Gets the active edge detection status.
void	XBARA_ClearStatusFlags (XBARA_Type *base, uint32_t mask)
	Clears the edge detection status flags of relative mask.
void	XBARA_SetOutputSignalConfig (XBARA_Type *base, xbar_output_signal_t output, const xbara_control_config_t *controlConfig)
	Configures the XBARA control register.

Detailed Description

Typedef Documentation

xbara_control_config_t

typedef struct XBARAControlConfig xbara_control_config_t

Defines the configuration structure of the XBARA control register.

This structure keeps the configuration of XBARA control register for one output. Control registers are available only for a few outputs. Not every XBARA module has control registers.

xbara_status_flag_t

typedef enum _xbara_status_flag_t xbara_status_flag_t

XBARA status flags.

This provides constants for the XBARA status flags for use in the XBARA functions.

Enumeration Type Documentation

_xbar_request

enum _xbar_request

Defines the XBARA DMA and interrupt configurations.

Enumerator
kXBARA_RequestDisable	Interrupt and DMA are disabled.
kXBARA_RequestDMAEnable	DMA enabled, interrupt disabled.
kXBARA_RequestInterruptEnable	Interrupt enabled, DMA disabled.

_xbara_active_edge

enum _xbara_active_edge

XBARA active edge for detection.

Enumerator
kXBARA_EdgeNone	Edge detection status bit never asserts.
kXBARA_EdgeRising	Edge detection status bit asserts on rising edges.
kXBARA_EdgeFalling	Edge detection status bit asserts on falling edges.
kXBARA_EdgeRisingAndFalling	Edge detection status bit asserts on rising and falling edges.

_xbara_status_flag_t

enum _xbara_status_flag_t

XBARA status flags.

This provides constants for the XBARA status flags for use in the XBARA functions.

Enumerator
kXBARA_EdgeDetectionOut0	XBAR_OUT0 active edge interrupt flag, sets when active edge detected.
kXBARA_EdgeDetectionOut1	XBAR_OUT1 active edge interrupt flag, sets when active edge detected.
kXBARA_EdgeDetectionOut2	XBAR_OUT2 active edge interrupt flag, sets when active edge detected.
kXBARA_EdgeDetectionOut3	XBAR_OUT3 active edge interrupt flag, sets when active edge detected.

Function Documentation

XBARA_ClearStatusFlags()

void XBARA_ClearStatusFlags	(	XBARA_Type *	base,
		uint32_t	mask
	)

Clears the edge detection status flags of relative mask.

Parameters

base	XBARA peripheral address.
mask	the status flags to clear.

brief Clears the edge detection status flags of relative mask.

param base XBARA peripheral address. param mask the status flags to clear.

XBARA_Deinit()

void XBARA_Deinit

(

XBARA_Type *

base

)

Shuts down the XBARA module.

This function disables XBARA clock.

Parameters

base	XBARA peripheral address.

brief Shuts down the XBARA module.

This function disables XBARA clock.

param base XBARA peripheral address.

XBARA_GetStatusFlags()

uint32_t XBARA_GetStatusFlags

(

XBARA_Type *

base

)

Gets the active edge detection status.

This function gets the active edge detect status of all XBARA_OUTs. If the active edge occurs, the return value is asserted. When the interrupt or the DMA functionality is enabled for the XBARA_OUTx, this field is 1 when the interrupt or DMA request is asserted and 0 when the interrupt or DMA request has been cleared.

Parameters

base	XBARA peripheral address.

Returns

the mask of these status flag bits.

brief Gets the active edge detection status.

This function gets the active edge detect status of all XBARA_OUTs. If the active edge occurs, the return value is asserted. When the interrupt or the DMA functionality is enabled for the XBARA_OUTx, this field is 1 when the interrupt or DMA request is asserted and 0 when the interrupt or DMA request has been cleared.

param base XBARA peripheral address. return the mask of these status flag bits.

XBARA_Init()

void XBARA_Init

(

XBARA_Type *

base

)

Initializes the XBARA module.

This function un-gates the XBARA clock.

Parameters

base	XBARA peripheral address.

brief Initializes the XBARA module.

This function un-gates the XBARA clock.

param base XBARA peripheral address.

XBARA_SetOutputSignalConfig()

void XBARA_SetOutputSignalConfig	(	XBARA_Type *	base,
		xbar_output_signal_t	output,
		const xbara_control_config_t *	controlConfig
	)

Configures the XBARA control register.

This function configures an XBARA control register. The active edge detection and the DMA/IRQ function on the corresponding XBARA output can be set.

Example:

xbara_control_config_t userConfig;
userConfig.activeEdge = kXBARA_EdgeRising;
userConfig.requestType = kXBARA_RequestInterruptEnalbe;
XBARA_SetOutputSignalConfig(XBARA, kXBARA_OutputDMAMUX18, &userConfig);

Parameters

base	XBARA peripheral address.
output	XBARA output number.
controlConfig	Pointer to structure that keeps configuration of control register.

brief Configures the XBARA control register.

This function configures an XBARA control register. The active edge detection and the DMA/IRQ function on the corresponding XBARA output can be set.

Example: code xbara_control_config_t userConfig; userConfig.activeEdge = kXBARA_EdgeRising; userConfig.requestType = kXBARA_RequestInterruptEnalbe; XBARA_SetOutputSignalConfig(XBARA, kXBARA_OutputDMAMUX18, &userConfig); endcode

param base XBARA peripheral address. param output XBARA output number. param controlConfig Pointer to structure that keeps configuration of control register.

XBARA_SetSignalsConnection()

void XBARA_SetSignalsConnection	(	XBARA_Type *	base,
		xbar_input_signal_t	input,
		xbar_output_signal_t	output
	)

Sets a connection between the selected XBARA_IN[*] input and the XBARA_OUT[*] output signal.

This function connects the XBARA input to the selected XBARA output. If more than one XBARA module is available, only the inputs and outputs from the same module can be connected.

Example:

XBARA_SetSignalsConnection(XBARA, kXBARA_InputPIT_TRG0, kXBARA_OutputDMAMUX18);

Parameters

base	XBARA peripheral address.
input	XBARA input signal.
output	XBARA output signal.

brief Sets a connection between the selected XBARA_IN[*] input and the XBARA_OUT[*] output signal.

This function connects the XBARA input to the selected XBARA output. If more than one XBARA module is available, only the inputs and outputs from the same module can be connected.

Example: code XBARA_SetSignalsConnection(XBARA, kXBARA_InputPIT_TRG0, kXBARA_OutputDMAMUX18); endcode

param base XBARA peripheral address. param input XBARA input signal. param output XBARA output signal.