89 lines
3.5 KiB
C
89 lines
3.5 KiB
C
/* $NetBSD: pci_machdep.h,v 1.4 2005/08/19 17:17:53 bouyer Exp $ */
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/*
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* Copyright (c) 2005 Manuel Bouyer.
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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 Manuel Bouyer.
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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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*/
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#ifndef _XEN_PCI_MACHDEP_H_
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#define _XEN_PCI_MACHDEP_H_
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extern struct x86_bus_dma_tag pci_bus_dma_tag;
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extern u_int32_t pci_bus_attached[];
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/* Some values appropriate for x86, from x86/include/pci_machdep.h */
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#define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
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#define PCI_PREFER_IOSPACE
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#define PCI_MACHDEP_ENUMERATE_BUS xen_pci_enumerate_bus
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/* types provided to MI PCI */
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struct xen_pci_tag {
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u_int8_t bus;
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u_int8_t device;
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u_int8_t function;
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u_int8_t _pad; /* pad to 32bits */
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};
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struct xen_intr_handle {
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int pirq;
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int evtch;
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};
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typedef struct xen_pci_tag pcitag_t;
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typedef void *pci_chipset_tag_t;
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typedef struct xen_intr_handle pci_intr_handle_t;
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/* functions provided to MI PCI */
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struct pci_attach_args;
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void pci_attach_hook(struct device *, struct device *,
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struct pcibus_attach_args *);
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int pci_bus_maxdevs(pci_chipset_tag_t, int);
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pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int);
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void pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
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int *, int *, int *);
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pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
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void pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
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pcireg_t);
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int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
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const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
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const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
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void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
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int, int (*)(void *), void *);
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void pci_intr_disestablish(pci_chipset_tag_t, void *);
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int xen_pci_enumerate_bus(struct pci_softc *, const int *,
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int (*)(struct pci_attach_args *), struct pci_attach_args *);
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/*
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* Section 6.2.4, `Miscellaneous Functions' of the PCI Specification,
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* says that 255 means `unknown' or `no connection' to the interrupt
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* controller on a PC.
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*/
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#define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff
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#endif /* _XEN_PCI_MACHDEP_H_ */
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