4f9795b9fe
to search for a specific extended capability. If the specified capability is found for the given device, then the function returns success and optionally returns the offset of that capability. If the capability is not found, the function returns an error.
84 lines
3.8 KiB
C
84 lines
3.8 KiB
C
/*-
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* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
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* Copyright (c) 2000, Michael Smith <msmith@freebsd.org>
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* Copyright (c) 2000, BSDi
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* 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 unmodified, this list of conditions, and the following
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* 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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*
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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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* $FreeBSD$
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*
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*/
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#ifndef _PCI_PRIVATE_H_
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#define _PCI_PRIVATE_H_
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/*
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* Export definitions of the pci bus so that we can more easily share
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* it with "subclass" busses. A more generic subclassing mechanism would
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* be nice, but is not present in the tree at this time.
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*/
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extern devclass_t pci_devclass;
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void pci_add_children(device_t dev, int busno, size_t dinfo_size);
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void pci_add_child(device_t bus, struct pci_devinfo *dinfo);
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void pci_driver_added(device_t dev, driver_t *driver);
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int pci_print_child(device_t dev, device_t child);
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void pci_probe_nomatch(device_t dev, device_t child);
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int pci_read_ivar(device_t dev, device_t child, int which,
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uintptr_t *result);
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int pci_write_ivar(device_t dev, device_t child, int which,
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uintptr_t value);
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int pci_set_powerstate_method(device_t dev, device_t child,
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int state);
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int pci_get_powerstate_method(device_t dev, device_t child);
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uint32_t pci_read_config_method(device_t dev, device_t child,
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int reg, int width);
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void pci_write_config_method(device_t dev, device_t child,
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int reg, uint32_t val, int width);
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int pci_enable_busmaster_method(device_t dev, device_t child);
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int pci_disable_busmaster_method(device_t dev, device_t child);
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int pci_enable_io_method(device_t dev, device_t child, int space);
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int pci_disable_io_method(device_t dev, device_t child, int space);
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int pci_find_extcap_method(device_t dev, device_t child,
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int capability, int *capreg);
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struct resource *pci_alloc_resource(device_t dev, device_t child,
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int type, int *rid, u_long start, u_long end, u_long count,
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u_int flags);
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void pci_delete_resource(device_t dev, device_t child,
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int type, int rid);
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struct resource_list *pci_get_resource_list (device_t dev, device_t child);
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struct pci_devinfo *pci_read_device(device_t pcib, int b, int s, int f,
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size_t size);
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void pci_print_verbose(struct pci_devinfo *dinfo);
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int pci_freecfg(struct pci_devinfo *dinfo);
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int pci_child_location_str_method(device_t cbdev, device_t child,
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char *buf, size_t buflen);
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int pci_child_pnpinfo_str_method(device_t cbdev, device_t child,
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char *buf, size_t buflen);
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int pci_assign_interrupt_method(device_t dev, device_t child);
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int pci_resume(device_t dev);
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int pci_suspend(device_t dev);
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void pci_cfg_restore(device_t, struct pci_devinfo *);
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void pci_cfg_save(device_t, struct pci_devinfo *, int);
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#endif /* _PCI_PRIVATE_H_ */
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