CLI

Clear Interrupt Flag (CLI) Handling. More...

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Detailed Description

Clear Interrupt Flag (CLI) Handling.

Manages nested CLI (Clear Interrupt Flag) calls.

Macros
#define	CLI_SCOPE()
	Macro to increment CLI depth for the duration of the current scope.

Functions
static void	cli_push (void)
	Increments the CLI depth, disabling interrupts if depth was zero.
static void	cli_pop (void)
	Decrements the CLI depth, re-enabling interrupts if depth reaches zero and interrupts were enabled prior to the first cli_push() call.
static void	cli_scope_cleanup (int *_)

Macro Definition Documentation

CLI_SCOPE

#define CLI_SCOPE

(

)

Value:

    cli_push(); \
    __attribute__((cleanup(cli_scope_cleanup))) int CONCAT(i, __COUNTER__) = 1;

Macro to increment CLI depth for the duration of the current scope.

Definition at line 56 of file cli.h.

Function Documentation

cli_push()

static void cli_push ( void  )

inlinestatic

Increments the CLI depth, disabling interrupts if depth was zero.

Warning

Must have a matching cli_pop() call to re-enable interrupts when depth reaches zero.

Definition at line 24 of file cli.h.

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cli_pop()

static void cli_pop ( void  )

inlinestatic

Decrements the CLI depth, re-enabling interrupts if depth reaches zero and interrupts were enabled prior to the first cli_push() call.

Warning

This function should only be called after a cli_push() call.

Definition at line 42 of file cli.h.

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cli_scope_cleanup()

static void cli_scope_cleanup ( int *  _ )

inlinestatic

Definition at line 60 of file cli.h.

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