FreeBSD/Linux Kernel Cross Reference
sys/mips/include/intr.h

     /*      $NetBSD: intr.h,v 1.5 1996/05/13 06:11:28 mycroft Exp $ */
     
     /*-
      * Copyright (c) 1996 Charles M. Hannum.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Charles M. Hannum.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
     *
     *      JNPR: intr.h,v 1.4 2007/08/09 11:23:32 katta
     * $FreeBSD: releng/8.1/sys/mips/include/intr.h 178172 2008-04-13 07:27:37Z imp $
     */
    
    #ifndef _MACHINE_INTR_H_
    #define _MACHINE_INTR_H_
    
    /* Interrupt sharing types. */
    #define IST_NONE        0       /* none */
    #define IST_PULSE       1       /* pulsed */
    #define IST_EDGE        2       /* edge-triggered */
    #define IST_LEVEL       3       /* level-triggered */
    
    #ifndef _LOCORE
    
    /*
     * Index into intrcnt[], which is defined in exceptions.S
     *      Index # = irq # - 1
     */
    #define INTRCNT_HARDCLOCK       0
    #define INTRCNT_RTC             1
    #define INTRCNT_SIO             2       /* irq 3 */
    #define INTRCNT_PE              3       /* irq 4 */
    #define INTRCNT_PICNIC          4       /* irq 5 */
    
    extern uint32_t idle_mask;
    extern void (*mips_ack_interrupt)(int, uint32_t);
    
    typedef int     ih_func_t(void *);
    
    struct intr_event;
    
    struct mips_intr_handler {
            int     (*ih_func) (void *);
            void    *ih_arg;
            struct  intr_event *ih_event;
            u_int   ih_flags;
            volatile long *ih_count;
            int     ih_level;
            int     ih_irq;
            void    *frame;
    };
    
    extern struct mips_intr_handler intr_handlers[];
    
    typedef void (*mask_fn)(void *);
    
    void mips_mask_irq(void);
    void mips_unmask_irq(void);
    
    struct trapframe;
    void    mips_set_intr(int pri, uint32_t mask,
                uint32_t (*int_hand)(uint32_t, struct trapframe *));
    uint32_t mips_handle_interrupts(uint32_t pending, struct trapframe *cf);
    void    intr_enable_source(uintptr_t irq);
    struct trapframe * mips_get_trapframe(void *ih_arg);
    int     inthand_add(const char *name, u_int irq, void (*handler)(void *),
                void *arg, int flags, void **cookiep);
    int     inthand_remove(u_int irq, void *cookie);
    void    bvif_attach(void);
    
    #endif /* _LOCORE */
    
    #endif /* !_MACHINE_INTR_H_ */

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