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Annotation of sys/arch/powerpc/isa/isa_machdep.h, Revision 1.1.1.1

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_ */