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eisa_machdep.c revision 1.5 
      1 /*	$NetBSD: eisa_machdep.c,v 1.5 1996/10/21 23:12:56 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
      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 by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     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 OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Machine-specific functions for EISA autoconfiguration.
     35  */
     36 
     37 #include <sys/types.h>
     38 #include <sys/param.h>
     39 #include <sys/time.h>
     40 #include <sys/systm.h>
     41 #include <sys/errno.h>
     42 #include <sys/device.h>
     43 #include <sys/extent.h>
     44 
     45 #include <i386/isa/icu.h>
     46 #include <dev/isa/isareg.h>
     47 #include <dev/isa/isavar.h>
     48 #include <dev/eisa/eisavar.h>
     49 
     50 void
     51 eisa_attach_hook(parent, self, eba)
     52 	struct device *parent, *self;
     53 	struct eisabus_attach_args *eba;
     54 {
     55 
     56 	/* Nothing to do */
     57 }
     58 
     59 int
     60 eisa_maxslots(ec)
     61 	eisa_chipset_tag_t ec;
     62 {
     63 
     64 	/*
     65 	 * Always try 16 slots.
     66 	 */
     67 	return (16);
     68 }
     69 
     70 int
     71 eisa_intr_map(ec, irq, ihp)
     72 	eisa_chipset_tag_t ec;
     73 	u_int irq;
     74 	eisa_intr_handle_t *ihp;
     75 {
     76 
     77 	if (irq >= ICU_LEN) {
     78 		printf("eisa_intr_map: bad IRQ %d\n", irq);
     79 		*ihp = -1;
     80 		return 1;
     81 	}
     82 	if (irq == 2) {
     83 		printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
     84 		irq = 9;
     85 	}
     86 
     87 	*ihp = irq;
     88 	return 0;
     89 }
     90 
     91 const char *
     92 eisa_intr_string(ec, ih)
     93 	eisa_chipset_tag_t ec;
     94 	eisa_intr_handle_t ih;
     95 {
     96 	static char irqstr[8];		/* 4 + 2 + NULL + sanity */
     97 
     98 	if (ih == 0 || ih >= ICU_LEN || ih == 2)
     99 		panic("eisa_intr_string: bogus handle 0x%x\n", ih);
    100 
    101 	sprintf(irqstr, "irq %d", ih);
    102 	return (irqstr);
    103 
    104 }
    105 
    106 void *
    107 eisa_intr_establish(ec, ih, type, level, func, arg)
    108 	eisa_chipset_tag_t ec;
    109 	eisa_intr_handle_t ih;
    110 	int type, level, (*func) __P((void *));
    111 	void *arg;
    112 {
    113 
    114 	if (ih == 0 || ih >= ICU_LEN || ih == 2)
    115 		panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
    116 
    117 	return isa_intr_establish(NULL, ih, type, level, func, arg);
    118 }
    119 
    120 void
    121 eisa_intr_disestablish(ec, cookie)
    122 	eisa_chipset_tag_t ec;
    123 	void *cookie;
    124 {
    125 
    126 	return isa_intr_disestablish(NULL, cookie);
    127 }
    128 
    129 int
    130 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
    131 	bus_space_tag_t t;
    132 	bus_size_t size, align;
    133 	bus_addr_t boundary;
    134 	int cacheable;
    135 	bus_addr_t *addrp;
    136 	bus_space_handle_t *bahp;
    137 {
    138 	extern struct extent *iomem_ex;
    139 
    140 	/*
    141 	 * Allocate physical address space after the ISA hole.
    142 	 */
    143 	return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
    144 	    boundary, cacheable, addrp, bahp);
    145 }
    146 
    147 void
    148 eisa_mem_free(t, bah, size)
    149 	bus_space_tag_t t;
    150 	bus_space_handle_t bah;
    151 	bus_size_t size;
    152 {
    153 
    154 	bus_space_free(t, bah, size);
    155 }
    156