Modes

Files
file	modes.h
file	modes.c
	Body for RTEMS_INTERRUPT_LEVEL Macro.

Macros
#define	RTEMS_ALL_MODE_MASKS   0x0000ffff
#define	RTEMS_DEFAULT_MODES   0x00000000
#define	RTEMS_CURRENT_MODE   0
#define	RTEMS_TIMESLICE_MASK   0x00000200
#define	RTEMS_PREEMPT_MASK   0x00000100
#define	RTEMS_ASR_MASK   0x00000400
#define	RTEMS_INTERRUPT_MASK   CPU_MODES_INTERRUPT_MASK
#define	RTEMS_PREEMPT   0x00000000
#define	RTEMS_NO_PREEMPT   0x00000100
#define	RTEMS_NO_TIMESLICE   0x00000000
#define	RTEMS_TIMESLICE   0x00000200
#define	RTEMS_ASR   0x00000000
#define	RTEMS_NO_ASR   0x00000400
#define	RTEMS_INTERRUPT_LEVEL(_mode_set)   ( (_mode_set) & RTEMS_INTERRUPT_MASK )
	RTEMS_INTERRUPT_LEVEL. More...

Typedefs
typedef uint32_t	rtems_mode

Functions
rtems_mode	rtems_interrupt_level_body (uint32_t level)
	Body for RTEMS_INTERRUPT_LEVEL Macro. More...

Variables
const uint32_t	rtems_interrupt_mask
	Interrupt Mask Variable. More...

Detailed Description

This encapsulates functionality related to the task modes supported by the Classic API Task Manager.

Macro Definition Documentation

RTEMS_ALL_MODE_MASKS

#define RTEMS_ALL_MODE_MASKS   0x0000ffff

The following constants define the individual modes and masks which may be used to compose a mode set and to alter modes.

RTEMS_ASR

#define RTEMS_ASR   0x00000000

This mode constant is used to indicate signal processing is enabled.

RTEMS_ASR_MASK

#define RTEMS_ASR_MASK   0x00000400

This mode constant corresponds to the signal enable/disable bit.

RTEMS_CURRENT_MODE

#define RTEMS_CURRENT_MODE   0

This mode constant is used when the user wishes to obtain their current execution mode.

RTEMS_DEFAULT_MODES

#define RTEMS_DEFAULT_MODES   0x00000000

This mode constant is the default mode set.

RTEMS_INTERRUPT_LEVEL

#define RTEMS_INTERRUPT_LEVEL

(

_mode_set

)

( (_mode_set) & RTEMS_INTERRUPT_MASK )

RTEMS_INTERRUPT_LEVEL.

This function returns the processor dependent interrupt level which corresponds to the requested interrupt level.

Note

RTEMS supports 256 interrupt levels using the least significant eight bits of MODES.CONTROL. On any particular CPU, fewer than 256 levels may be supported.

RTEMS_INTERRUPT_MASK

#define RTEMS_INTERRUPT_MASK   CPU_MODES_INTERRUPT_MASK

This mode constant corresponds to the interrupt enable/disable bits.

RTEMS_NO_ASR

#define RTEMS_NO_ASR   0x00000400

This mode constant is used to indicate signal processing is disabled.

RTEMS_NO_PREEMPT

#define RTEMS_NO_PREEMPT   0x00000100

This mode constant is used to indicate preemption is disabled.

RTEMS_NO_TIMESLICE

#define RTEMS_NO_TIMESLICE   0x00000000

This mode constant is used to indicate timeslicing is disabled.

RTEMS_PREEMPT

#define RTEMS_PREEMPT   0x00000000

This mode constant is used to indicate preemption is enabled.

RTEMS_PREEMPT_MASK

#define RTEMS_PREEMPT_MASK   0x00000100

This mode constant corresponds to the preemption enable/disable bit.

RTEMS_TIMESLICE

#define RTEMS_TIMESLICE   0x00000200

This mode constant is used to indicate timeslicing is enabled.

RTEMS_TIMESLICE_MASK

#define RTEMS_TIMESLICE_MASK   0x00000200

This mode constant corresponds to the timeslice enable/disable bit.

Typedef Documentation

rtems_mode

typedef uint32_t rtems_mode

The following type defines the control block used to manage each a mode set.

Function Documentation

rtems_interrupt_level_body()

rtems_mode rtems_interrupt_level_body

(

uint32_t

level

)

Body for RTEMS_INTERRUPT_LEVEL Macro.

Parameters

[in]

level

is the desired interrupt level

Return values

This	methods returns a mode with the desired interrupt level in the proper bitfield location.

Note

This variable is used by bindings from languages other than C and C++.

Variable Documentation

rtems_interrupt_mask

const uint32_t rtems_interrupt_mask

Interrupt Mask Variable.

This variable is used by bindings from languages other than C and C++.