interrupt.c File Reference

Go to the source code of this file.

Classes
struct	intloop_params
Defines
#define	DEBUG_INTERRUPTS   0
#define	MAX_INTERRUPTS   32
#define	BLOCK_IRQ   0
Functions
static void	ddekit_irq_exit_fn (l4thread_t thread, void *data)
	L4THREAD_EXIT_FN_STATIC (exit_fn, ddekit_irq_exit_fn)
static void	intloop (void *arg)
	Interrupt service loop.
ddekit_thread_t *	ddekit_interrupt_attach (int irq, int shared, void(*thread_init)(void *), void(*handler)(void *), void *priv)
	Attach to hardware interrupt.
void	ddekit_interrupt_detach (int irq)
	Detach from interrupt by disabling it and then shutting down the IRQ thread.
void	ddekit_interrupt_disable (int irq)
	Block interrupt.
void	ddekit_interrupt_enable (int irq)
	Enable interrupt.
Variables
struct {
int   handle_irq
ddekit_sem_t *   irqsem
ddekit_thread_t *   irq_thread
omega0_irqdesc_t   irq_desc
}	ddekit_irq_ctrl [MAX_INTERRUPTS]

---

Define Documentation

#define BLOCK_IRQ   0

Definition at line 27 of file interrupt.c.

#define DEBUG_INTERRUPTS   0

Definition at line 23 of file interrupt.c.

#define MAX_INTERRUPTS   32

Definition at line 25 of file interrupt.c.

---

Function Documentation

ddekit_thread_t* ddekit_interrupt_attach	(	int	irq,
		int	shared,
		void(*)(void *)	thread_init,
		void(*)(void *)	handler,
		void *	priv
	)

Attach to hardware interrupt.

Parameters:

	irq	IRQ number to attach to
	shared	set to 1 if interrupt sharing is supported; set to 0 otherwise
	thread_init	called just after DDEKit internal init and before any other function
	handler	IRQ handler for interrupt irq
	priv	private token (argument for thread_init and handler)

Returns:

pointer to interrupt thread created

Definition at line 155 of file interrupt.c.

void ddekit_interrupt_detach

(

int

irq

)

Detach from interrupt by disabling it and then shutting down the IRQ thread.

Detach from a previously attached interrupt.

Definition at line 205 of file interrupt.c.

void ddekit_interrupt_disable

(

int

irq

)

Block interrupt.

Parameters:

irq

IRQ number to block

Definition at line 212 of file interrupt.c.

void ddekit_interrupt_enable

(

int

irq

)

Enable interrupt.

Parameters:

irq

IRQ number to block

Definition at line 222 of file interrupt.c.

static void ddekit_irq_exit_fn	(	l4thread_t	thread,
		void *	data
	)			[static]

Definition at line 53 of file interrupt.c.

static void intloop

(

void *

arg

)

[static]

Interrupt service loop.

Definition at line 68 of file interrupt.c.

L4THREAD_EXIT_FN_STATIC	(	exit_fn	,
		ddekit_irq_exit_fn
	)

---

Variable Documentation

struct { ... } ddekit_irq_ctrl[MAX_INTERRUPTS] [static]

int handle_irq

Definition at line 46 of file interrupt.c.

omega0_irqdesc_t irq_desc

Definition at line 49 of file interrupt.c.

ddekit_thread_t* irq_thread

Definition at line 48 of file interrupt.c.

ddekit_sem_t* irqsem

Definition at line 47 of file interrupt.c.