42dbeaee02
- Make the pci devclass a global variable. - Add child devices in pci_attach() instead of pci_probe(). Change pci_probe() to just check for a valid bus number from the associated bridge and return -1000 if successful. This allows subclasses of the PCI bus driver to override the generic driver. - Move the code to load the vendor data into its own public function. Really though, doing this at attach is just plain wrong. This should really be done in the module load routine instead. As a side effect, the 'busno' variable in pci_attach() is now no longer static (minor bug that was harmless so far.) - Change pci_add_children() to take an extra argument that is the size of the device info structure passed to pci_read_device() and make it public so subclasses of the PCI bus can call it in their attach routines. - Move the bits to attach a probed PCI child to a PCI bus into a global pci_add_child() function. This will allow subclasses that can detect a PCI device not found in the normal PCI probe to add those devices in their own attach routine. (I have seen this in the ACPI tree on my laptop for example.) As a side effect, change the static function pci_add_resources() to get the busno, slot, and func from the passed in dinfo structure instead of requiring them as function arguments. Tested on: i386, alpha, ia64, sparc64
74 lines
3.2 KiB
C
74 lines
3.2 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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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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u_int32_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, u_int32_t val, int width);
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void pci_enable_busmaster_method(device_t dev, device_t child);
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void pci_disable_busmaster_method(device_t dev, device_t child);
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void pci_enable_io_method(device_t dev, device_t child, int space);
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void pci_disable_io_method(device_t dev, device_t child, int space);
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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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void pci_load_vendor_data(void);
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#endif /* _PCI_PRIVATE_H_ */
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