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/* $OpenBSD: pcivar.h,v 1.13 1998/01/20 18:40:36 niklas Exp $ */
/* $NetBSD: pcivar.h,v 1.23 1997/06/06 23:48:05 thorpej Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles 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 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.
*/
#ifndef _DEV_PCI_PCIVAR_H_
#define _DEV_PCI_PCIVAR_H_
/*
* Definitions for PCI autoconfiguration.
*
* This file describes types and functions which are used for PCI
* configuration. Some of this information is machine-specific, and is
* provided by pci_machdep.h.
*/
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
/*
* Structures and definitions needed by the machine-dependent header.
*/
typedef u_int32_t pcireg_t; /* configuration space register XXX */
struct pcibus_attach_args;
/*
* Machine-dependent definitions.
*/
#if (alpha + atari + i386 + arc + powerpc != 1)
ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
#endif
#if alpha
#include <alpha/pci/pci_machdep.h>
#endif
#if atari
#include <atari/pci/pci_machdep.h>
#endif
#if i386
#include <i386/pci/pci_machdep.h>
#endif
#if arc
#include <arc/pci/pci_machdep.h>
#endif
#if powerpc
#include <powerpc/pci/pci_machdep.h>
#endif
/*
* PCI bus attach arguments.
*/
struct pcibus_attach_args {
char *pba_busname; /* XXX should be common */
bus_space_tag_t pba_iot; /* pci i/o space tag */
bus_space_tag_t pba_memt; /* pci mem space tag */
bus_dma_tag_t pba_dmat; /* DMA tag */
pci_chipset_tag_t pba_pc;
int pba_bus; /* PCI bus number */
/*
* Interrupt swizzling information. These fields
* are only used by secondary busses.
*/
u_int pba_intrswiz; /* how to swizzle pins */
pcitag_t pba_intrtag; /* intr. appears to come from here */
};
/*
* PCI device attach arguments.
*/
struct pci_attach_args {
bus_space_tag_t pa_iot; /* pci i/o space tag */
bus_space_tag_t pa_memt; /* pci mem space tag */
bus_dma_tag_t pa_dmat; /* DMA tag */
pci_chipset_tag_t pa_pc;
u_int pa_device;
u_int pa_function;
pcitag_t pa_tag;
pcireg_t pa_id, pa_class;
/*
* Interrupt information.
*
* "Intrline" is used on systems whose firmware puts
* the right routing data into the line register in
* configuration space. The rest are used on systems
* that do not.
*/
u_int pa_intrswiz; /* how to swizzle pins if ppb */
pcitag_t pa_intrtag; /* intr. appears to come from here */
pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */
pci_intr_line_t pa_intrline; /* intr. routing information */
};
/*
* Locators devices that attach to 'pcibus', as specified to config.
*/
#define pcibuscf_bus cf_loc[0]
#define PCIBUS_UNK_BUS -1 /* wildcarded 'bus' */
/*
* Locators for PCI devices, as specified to config.
*/
#define pcicf_dev cf_loc[0]
#define PCI_UNK_DEV -1 /* wildcarded 'dev' */
#define pcicf_function cf_loc[1]
#define PCI_UNK_FUNCTION -1 /* wildcarded 'function' */
/*
* Configuration space access and utility functions. (Note that most,
* e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.)
*/
int pci_io_find __P((pci_chipset_tag_t, pcitag_t, int, bus_addr_t *,
bus_size_t *));
int pci_mem_find __P((pci_chipset_tag_t, pcitag_t, int, bus_addr_t *,
bus_size_t *, int *));
/*
* Helper functions for autoconfiguration.
*/
void pci_devinfo __P((pcireg_t, pcireg_t, int, char *));
void set_pci_isa_bridge_callback __P((void (*)(void *), void *));
#endif /* _DEV_PCI_PCIVAR_H_ */
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