Logo Search packages:      
Sourcecode: linux version File versions

irq.c

/*
 *  Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/irq_cpu.h>

void plat_irq_dispatch(void)
{
      u32 cause;

      cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;

      clear_c0_status(cause);

      if (cause & CAUSEF_IP7)
            do_IRQ(7);
      if (cause & CAUSEF_IP2)
            do_IRQ(2);
      if (cause & CAUSEF_IP3)
            do_IRQ(3);
      if (cause & CAUSEF_IP4)
            do_IRQ(4);
      if (cause & CAUSEF_IP5)
            do_IRQ(5);
      if (cause & CAUSEF_IP6)
            do_IRQ(6);
}

void __init arch_init_irq(void)
{
      mips_cpu_irq_init();
}

Generated by  Doxygen 1.6.0   Back to index