c3cf005c4b
- Break out the /dev/pci driver into a separate file. - Kill the COMPAT_OLDPCI support. - Make the EISA bridge attach a bit more like the old code; explicitly check for the existence of eisa0/isa0 and only attach if they don't already exist. Only make one bus_generic_attach() pass over the bridge, once both busses are attached. Note that the stupid Intel bridge's class is entirely unpredictable. - Add prototypes and re-layout the core PCI modules in line with current coding standards (not a major whitespace change, just moving the module data to the top of the file). - Remove redundant type-2 bridge support from the core PCI code; the PCI-CardBus code does this itself internally. Remove the now entirely redundant header-class-specific support, as well as the secondary and subordinate bus number fields. These are bridge attributes now. - Add support for PCI Extended Capabilities. - Add support for PCI Power Management. The interface currently allows a driver to query and set the power state of a device. - Add helper functions to allow drivers to enable/disable busmastering and the decoding of I/O and memory ranges. - Use PCI_SLOTMAX and PCI_FUNCMAX rather than magic numbers in some places. - Make the PCI-PCI bridge code a little more paranoid about valid I/O and memory decodes. - Add some more PCI register definitions for the command and status registers. Correct another bogus definition for type-1 bridges.
128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/*-
|
|
* Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
|
|
* Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
|
|
* Copyright (c) 2000 BSDi
|
|
* 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. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* PCI:EISA bridge support
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <pci/pcivar.h>
|
|
#include <pci/pcireg.h>
|
|
|
|
static int eisab_probe(device_t dev);
|
|
static int eisab_attach(device_t dev);
|
|
|
|
static device_method_t eisab_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, eisab_probe),
|
|
DEVMETHOD(device_attach, eisab_attach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t eisab_driver = {
|
|
"eisab",
|
|
eisab_methods,
|
|
0,
|
|
};
|
|
|
|
static devclass_t eisab_devclass;
|
|
|
|
DRIVER_MODULE(eisab, pci, eisab_driver, eisab_devclass, 0, 0);
|
|
|
|
static int
|
|
eisab_probe(device_t dev)
|
|
{
|
|
int matched = 0;
|
|
|
|
/*
|
|
* Generic match by class/subclass.
|
|
*/
|
|
if ((pci_get_class(dev) == PCIC_BRIDGE) &&
|
|
(pci_get_subclass(dev) == PCIS_BRIDGE_EISA))
|
|
matched = 1;
|
|
|
|
/*
|
|
* Some bridges don't correctly report their class.
|
|
*/
|
|
switch (pci_get_devid(dev)) {
|
|
case 0x04828086: /* may show up as PCI-HOST or 0:0 */
|
|
matched = 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (matched) {
|
|
device_set_desc(dev, "PCI-EISA bridge");
|
|
return(-10000);
|
|
}
|
|
return(ENXIO);
|
|
}
|
|
|
|
static int
|
|
eisab_attach(device_t dev)
|
|
{
|
|
/*
|
|
* Attach an EISA bus. Note that we can only have one EISA bus.
|
|
*/
|
|
if (!devclass_get_device(devclass_find("eisa"), 0))
|
|
device_add_child(dev, "eisa", -1);
|
|
|
|
/*
|
|
* Attach an ISA bus as well, since the EISA bus may have ISA
|
|
* cards installed, and we may have no EISA support in the system.
|
|
*/
|
|
if (!devclass_get_device(devclass_find("isa"), 0))
|
|
device_add_child(dev, "isa", -1);
|
|
|
|
bus_generic_attach(dev);
|
|
|
|
return(0);
|
|
}
|
|
|