NetBSD/sys/arch/i386/eisa/eisa_machdep.c

276 lines
7.3 KiB
C

/* $NetBSD: eisa_machdep.c,v 1.13 2001/05/15 15:07:37 lukem Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* Copyright (c) 1996 Christopher G. Demetriou. 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 Christopher G. Demetriou
* for the NetBSD Project.
* 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.
*/
/*
* Machine-specific functions for EISA autoconfiguration.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/extent.h>
#define _I386_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <i386/isa/icu.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/eisa/eisavar.h>
/*
* EISA doesn't have any special needs; just use the generic versions
* of these funcions.
*/
struct i386_bus_dma_tag eisa_bus_dma_tag = {
0, /* _bounce_thresh */
_bus_dmamap_create,
_bus_dmamap_destroy,
_bus_dmamap_load,
_bus_dmamap_load_mbuf,
_bus_dmamap_load_uio,
_bus_dmamap_load_raw,
_bus_dmamap_unload,
NULL, /* _dmamap_sync */
_bus_dmamem_alloc,
_bus_dmamem_free,
_bus_dmamem_map,
_bus_dmamem_unmap,
_bus_dmamem_mmap,
};
void
eisa_attach_hook(parent, self, eba)
struct device *parent, *self;
struct eisabus_attach_args *eba;
{
extern int eisa_has_been_seen;
/*
* Notify others that might need to know that the EISA bus
* has now been attached.
*/
if (eisa_has_been_seen)
panic("eisaattach: EISA bus already seen!");
eisa_has_been_seen = 1;
}
int
eisa_maxslots(ec)
eisa_chipset_tag_t ec;
{
/*
* Always try 16 slots.
*/
return (16);
}
int
eisa_intr_map(ec, irq, ihp)
eisa_chipset_tag_t ec;
u_int irq;
eisa_intr_handle_t *ihp;
{
if (irq >= ICU_LEN) {
printf("eisa_intr_map: bad IRQ %d\n", irq);
*ihp = -1;
return 1;
}
if (irq == 2) {
printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
irq = 9;
}
*ihp = irq;
return 0;
}
const char *
eisa_intr_string(ec, ih)
eisa_chipset_tag_t ec;
eisa_intr_handle_t ih;
{
static char irqstr[8]; /* 4 + 2 + NULL + sanity */
if (ih == 0 || ih >= ICU_LEN || ih == 2)
panic("eisa_intr_string: bogus handle 0x%x\n", ih);
sprintf(irqstr, "irq %d", ih);
return (irqstr);
}
const struct evcnt *
eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
{
/* XXX for now, no evcnt parent reported */
return NULL;
}
void *
eisa_intr_establish(ec, ih, type, level, func, arg)
eisa_chipset_tag_t ec;
eisa_intr_handle_t ih;
int type, level, (*func) __P((void *));
void *arg;
{
if (ih == 0 || ih >= ICU_LEN || ih == 2)
panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
return isa_intr_establish(NULL, ih, type, level, func, arg);
}
void
eisa_intr_disestablish(ec, cookie)
eisa_chipset_tag_t ec;
void *cookie;
{
isa_intr_disestablish(NULL, cookie);
}
int
eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
bus_space_tag_t t;
bus_size_t size, align;
bus_addr_t boundary;
int cacheable;
bus_addr_t *addrp;
bus_space_handle_t *bahp;
{
extern struct extent *iomem_ex;
/*
* Allocate physical address space after the ISA hole.
*/
return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
boundary, cacheable, addrp, bahp);
}
void
eisa_mem_free(t, bah, size)
bus_space_tag_t t;
bus_space_handle_t bah;
bus_size_t size;
{
bus_space_free(t, bah, size);
}
int
eisa_conf_read_mem(ec, slot, func, entry, ecm)
eisa_chipset_tag_t ec;
int slot, func, entry;
struct eisa_cfg_mem *ecm;
{
/* XXX XXX XXX */
return (ENOENT);
}
int
eisa_conf_read_irq(ec, slot, func, entry, eci)
eisa_chipset_tag_t ec;
int slot, func, entry;
struct eisa_cfg_irq *eci;
{
/* XXX XXX XXX */
return (ENOENT);
}
int
eisa_conf_read_dma(ec, slot, func, entry, ecd)
eisa_chipset_tag_t ec;
int slot, func, entry;
struct eisa_cfg_dma *ecd;
{
/* XXX XXX XXX */
return (ENOENT);
}
int
eisa_conf_read_io(ec, slot, func, entry, ecio)
eisa_chipset_tag_t ec;
int slot, func, entry;
struct eisa_cfg_io *ecio;
{
/* XXX XXX XXX */
return (ENOENT);
}