7fda077700
pcibus and pci.
(2) remove the #ifdef i386 from pci.c, and provide a machine-dependent
hook (pci_md_attach_hook()) to do any machine-dependent attachment
gunk, e.g. on the i386 printing out the configuration mode (if bus 0)
(3) don't pass max device number for a given bus in, use
PCI_MAX_DEVICE_NUMBER, which can be defined on a per-machine basis.
(defaults to 32. on i386, it's 32 if pci conf mode == 1, 16 if 2.)
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/* $NetBSD: pcivar.h,v 1.13 1996/03/14 02:35:33 cgd Exp $ */
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/*
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* Copyright (c) 1994 Charles Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_PCI_PCIVAR_H_
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#define _DEV_PCI_PCIVAR_H_
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/*
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* Definitions for PCI autoconfiguration.
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*
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* This file describes types and functions which are used for PCI
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* configuration. Some of this information is machine-specific, and is
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* separated into pci_machdep.h.
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*/
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#include <machine/bus.h>
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#if (alpha + i386 != 1)
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ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE.
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#endif
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#if alpha
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#include <alpha/pci/pci_machdep.h>
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#endif
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#if i386
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#include <i386/pci/pci_machdep.h>
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#endif
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/*
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* The maximum number of devices on a PCI bus is 32. However, some
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* PCI chipsets (e.g. chipsets that implement 'Configuration Mechanism #2'
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* on the i386) can't deal with that many, so let pci_machdep.h override it.
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*/
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#ifndef PCI_MAX_DEVICE_NUMBER
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#define PCI_MAX_DEVICE_NUMBER 32
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#endif
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/*
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* PCI bus attach arguments.
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*/
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struct pcibus_attach_args {
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char *pba_busname; /* XXX should be common */
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bus_chipset_tag_t pba_bc; /* XXX should be common */
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int pba_bus; /* PCI bus number */
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};
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/*
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* PCI device attach arguments.
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*/
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struct pci_attach_args {
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bus_chipset_tag_t pa_bc; /* bus chipset tag */
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int pa_device;
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int pa_function;
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pcitag_t pa_tag;
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pcireg_t pa_id, pa_class;
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};
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/*
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* Locators devices that attach to 'pcibus', as specified to config.
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*/
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#define pcibuscf_bus cf_loc[0]
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#define PCIBUS_UNK_BUS -1 /* wildcarded 'bus' */
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/*
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* Locators for PCI devices, as specified to config.
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*/
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#define pcicf_dev cf_loc[0]
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#define PCI_UNK_DEV -1 /* wildcarded 'dev' */
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#define pcicf_function cf_loc[1]
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#define PCI_UNK_FUNCTION -1 /* wildcarded 'function' */
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pcireg_t pci_conf_read __P((pcitag_t, int));
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void pci_conf_write __P((pcitag_t, int, pcireg_t));
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void pci_devinfo __P((pcireg_t, pcireg_t, int, char *));
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pcitag_t pci_make_tag __P((int, int, int));
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void *pci_map_int __P((pcitag_t, int, int (*)(void *), void *));
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int pci_map_mem __P((pcitag_t, int, vm_offset_t *, vm_offset_t *));
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#endif /* _DEV_PCI_PCIVAR_H_ */
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