fe0d408987
device_add_child_ordered(). 'ivars' may now be set using the device_set_ivars() function. This makes it easier for us to change how arbitrary data structures are associated with a device_t. Eventually we won't be modifying device_t to add additional pointers for ivars, softc data etc. Despite my best efforts I've probably forgotten something so let me know if this breaks anything. I've been running with this change for months and its been quite involved actually isolating all the changes from the rest of the local changes in my tree. Reviewed by: peter, dfr
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/*-
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* Copyright (c) 1999 Andrew Gallatin
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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, 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <pci/pcivar.h>
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#include <alpha/pci/tsunamireg.h>
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#include <alpha/pci/tsunamivar.h>
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static devclass_t pcib_devclass;
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int tsunami_hoses[TSUNAMI_MAXHOSES+1] = {0,-1,-1,-1,-1};
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int
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tsunami_bus_within_hose(int hose, int bus)
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{
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return(bus - tsunami_hoses[hose]);
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}
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int
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tsunami_hose_from_bus(int bus)
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{
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int i;
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for(i = 1; i <= TSUNAMI_MAXHOSES && tsunami_hoses[i] != -1; i++){
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if(tsunami_hoses[i] > bus)
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return i-1;
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}
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return i-1;
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}
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static int
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tsunami_pcib_probe(device_t dev)
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{
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static int hoseno = 0;
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device_t child;
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device_set_desc(dev, "21271 PCI host bus adapter");
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child = device_add_child(dev, "pci", -1);
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if(hoseno)
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tsunami_hoses[hoseno] = device_get_unit(child);
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hoseno++;
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return 0;
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}
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static int
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tsunami_pcib_read_ivar(device_t dev, device_t child, int which, u_long *result)
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{
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if (which == PCIB_IVAR_HOSE) {
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*result = *(int*) device_get_ivars(dev);
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return 0;
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}
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return ENOENT;
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}
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static device_method_t tsunami_pcib_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, tsunami_pcib_probe),
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DEVMETHOD(device_attach, bus_generic_attach),
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/* Bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_read_ivar, tsunami_pcib_read_ivar),
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DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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{ 0, 0 }
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};
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static driver_t tsunami_pcib_driver = {
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"pcib",
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tsunami_pcib_methods,
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1,
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};
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DRIVER_MODULE(pcib, tsunami, tsunami_pcib_driver, pcib_devclass, 0, 0);
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