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Annotation of sys/arch/powerpc/isa/isa_machdep.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: isa_machdep.h,v 1.8 2003/10/31 03:55:06 drahn Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1997 Per Fogelstrom
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  * 1. Redistributions of source code must retain the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer.
        !            11:  * 2. Redistributions in binary form must reproduce the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer in the
        !            13:  *    documentation and/or other materials provided with the distribution.
        !            14:  * 3. All advertising materials mentioning features or use of this software
        !            15:  *    must display the following acknowledgement:
        !            16:  *     This product includes software developed under OpenBSD by
        !            17:  *     Per Fogelstrom, Opsycon AB, Sweden.
        !            18:  * 4. The name of the author may not be used to endorse or promote products
        !            19:  *    derived from this software without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
        !            22:  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            23:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
        !            25:  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  */
        !            34: #ifndef _ISA_MACHDEP_H_
        !            35: #define _ISA_MACHDEP_H_
        !            36:
        !            37: typedef struct ppc_isa_bus *isa_chipset_tag_t;
        !            38:
        !            39: /*
        !            40:  *      I/O macros to access isa bus ports/memory.
        !            41:  *      At the first glance theese macros may seem inefficient.
        !            42:  *      However, the cpu executes an instruction every <10 ns
        !            43:  *      so the bus is much slower so it doesn't matter, really.
        !            44:  */
        !            45: extern bus_space_handle_t ppc_isa_io_vaddr;
        !            46: #define isa_outb(x,y)   outb(ppc_isa_io_vaddr + (x), (y))
        !            47: #define isa_inb(x)   inb(ppc_isa_io_vaddr + (x))
        !            48:
        !            49: struct ppc_isa_bus {
        !            50:         void    *ic_data;
        !            51:
        !            52:         void    (*ic_attach_hook) (struct device *, struct device *,
        !            53:                     struct isabus_attach_args *);
        !            54:         void    *(*ic_intr_establish) (void *, int, int, int,
        !            55:                     int (*)(void *), void *, char *);
        !            56:         void    (*ic_intr_disestablish) (void *, void *);
        !            57: };
        !            58:
        !            59:
        !            60: /*
        !            61:  * Functions provided to machine-independent ISA code.
        !            62:  */
        !            63: #define isa_attach_hook(p, s, a)                             /*           \
        !            64:     (*(a)->iba_ic->ic_attach_hook)((p), (s), (a)) */
        !            65: #define isa_intr_establish(c, i, t, l, f, a, w)                         \
        !            66:     (*(c)->ic_intr_establish)((c)->ic_data, (i), (t), (l), (f), (a), (w))
        !            67: #define isa_intr_disestablish(c, h)                                     \
        !            68:     (*(c)->ic_intr_disestablish)((c)->ic_data, (h))
        !            69:
        !            70: #define __NO_ISA_INTR_CHECK    /* FIXME */
        !            71:
        !            72: #define ICU_LEN        16              /* Number of possible interrupt sources */
        !            73:
        !            74: extern void * isabr_intr_establish(void *, int, int, int,                             int (*ih_fun) (void *), void *, char *);
        !            75: #endif /* _ISA_MACHDEP_H_ */