/tmp/l4check/full_tree/trunk/l4/pkg/dde_linux/lib/src/irq.c File Reference

IRQ handling and request. More...

#include <l4/env/errno.h>
#include <l4/omega0/client.h>
#include <l4/thread/thread.h>
#include <l4/lock/lock.h>
#include <l4/dde_linux/dde.h>
#include <linux/sched.h>
#include <asm/hardirq.h>
#include <asm/irq.h>
#include "__config.h"
#include "internal.h"

Go to the source code of this file.

Classes
struct	irq_desc
	IRQ descriptor array. More...
Omega0 specific routines
#define	OM_MASK   0x00000001
#define	OM_UNMASK   0x00000002
#define	OM_CONSUME   0x00000004
static int	__omega0_attach (unsigned int irq, int *handle)
	Attach IRQ line.
static int	__omega0_wait (unsigned int irq, int handle, unsigned int flags)
	Wait for IRQ notification.
Module Variables
static struct irq_desc	handlers [NR_IRQS]
	IRQ descriptor array.
static int	_initialized = 0
	initialization flag
int	l4dde_irq_set_prio (unsigned int irq, unsigned prio)
Functions
static void	dde_irq_thread (struct irq_desc *irq_desc)
	IRQ handler thread.
int	request_irq (unsigned int irq, void(*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *dev_name, void *dev_id)
	Request Interrupt.
void	free_irq (unsigned int irq, void *dev_id)
	Release Interrupt.
int	l4dde_set_deferred_irq_handler (unsigned int irq, void(*def_handler)(int, void *), void *dev_def_id)
int	l4dde_irq_init ()
	Initalize IRQ handling.
l4_threadid_t	l4dde_irq_l4_id (int irq)
	Get IRQ thread number.
omega0_alien_handler_t	l4dde_set_alien_handler (omega0_alien_handler_t handler)
Undocumented
void	disable_irq (unsigned int irq_num)
void	disable_irq_nosync (unsigned int irq_num)
void	enable_irq (unsigned int irq_num)
int	probe_irq_on (unsigned long val)
	Old probing of interrupts.
int	probe_irq_off (unsigned long val)
	Old probing of interrupts.

---

Detailed Description

IRQ handling and request.

Date:

2007-05-29

Author:

Christian Helmuth <ch12@os.inf.tu-dresden.de>

Definition in file irq.c.

---

Function Documentation

static int __omega0_attach	(	unsigned int	irq,
		int *	handle
	)			[inline, static]

Attach IRQ line.

Parameters:

irq

IRQ number

Return values:

handle

IRQ handle

Returns:

0 on success (attached interrupt), -1 if attach failed.

Definition at line 94 of file irq.c.

static int __omega0_wait	(	unsigned int	irq,
		int	handle,
		unsigned int	flags
	)			[inline, static]

Wait for IRQ notification.

Parameters:

	irq	IRQ number
	handle	IRQ line handle
	flags	Flags: OM_MASK request IRQ mask OM_UNMASK request IRQ unmask OM_CONSUME IRQ consumed

Definition at line 119 of file irq.c.

static void dde_irq_thread

(

struct irq_desc *

irq_desc

)

[static]

IRQ handler thread.

Parameters:

irq_desc

IRQ handling descriptor (IRQ number and handler routine)

Definition at line 144 of file irq.c.

---

Variable Documentation

struct irq_desc handlers[NR_IRQS] [static]

IRQ descriptor array.

Todo:

what about IRQ sharing?