28bd1409da
command register. The lazy BAR allocation code in FreeBSD sometimes disables this bit when it detects a range conflict, and will re-enable it on demand when a driver allocates the BAR. Thus, the bit is no longer a reliable indication of capability, and should not be checked. This results in the elimination of a lot of code from drivers, and also gives the opportunity to simplify a lot of drivers to use a helper API to set the busmaster enable bit. This changes fixes some recent reports of disk controllers and their associated drives/enclosures disappearing during boot. Submitted by: jhb Reviewed by: jfv, marius, achadd, achim MFC after: 1 day
556 lines
15 KiB
C
556 lines
15 KiB
C
/*-
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* Copyright (c) 2003 Hidetoshi Shimokawa
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* Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the acknowledgement as bellow:
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*
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* This product includes software developed by K. Kobayashi and H. SHimokawa
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*
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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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define BOUNCE_BUFFER_TEST 0
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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/bus.h>
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#include <sys/queue.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <sys/malloc.h>
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#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#endif
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#include <machine/resource.h>
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#if defined(__DragonFly__) || __FreeBSD_version < 500000
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#include <machine/clock.h> /* for DELAY() */
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#endif
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#ifdef __DragonFly__
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#include <bus/pci/pcivar.h>
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#include <bus/pci/pcireg.h>
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#include "firewire.h"
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#include "firewirereg.h"
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#include "fwdma.h"
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#include "fwohcireg.h"
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#include "fwohcivar.h"
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#else
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#if __FreeBSD_version < 500000
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#else
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#endif
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#include <dev/firewire/firewire.h>
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#include <dev/firewire/firewirereg.h>
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#include <dev/firewire/fwdma.h>
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#include <dev/firewire/fwohcireg.h>
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#include <dev/firewire/fwohcivar.h>
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#endif
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static int fwohci_pci_attach(device_t self);
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static int fwohci_pci_detach(device_t self);
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/*
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* The probe routine.
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*/
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static int
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fwohci_pci_probe( device_t dev )
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{
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#if 1
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uint32_t id;
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id = pci_get_devid(dev);
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if (id == (FW_VENDORID_NATSEMI | FW_DEVICE_CS4210)) {
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device_set_desc(dev, "National Semiconductor CS4210");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD861)) {
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device_set_desc(dev, "NEC uPD72861");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD871)) {
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device_set_desc(dev, "NEC uPD72871/2");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72870)) {
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device_set_desc(dev, "NEC uPD72870");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72873)) {
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device_set_desc(dev, "NEC uPD72873");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72874)) {
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device_set_desc(dev, "NEC uPD72874");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_SIS | FW_DEVICE_7007)) {
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/* It has no real identifier, using device id. */
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device_set_desc(dev, "SiS 7007");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB22)) {
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device_set_desc(dev, "Texas Instruments TSB12LV22");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB23)) {
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device_set_desc(dev, "Texas Instruments TSB12LV23");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB26)) {
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device_set_desc(dev, "Texas Instruments TSB12LV26");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43)) {
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device_set_desc(dev, "Texas Instruments TSB43AA22");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43A)) {
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device_set_desc(dev, "Texas Instruments TSB43AB22/A");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB21)) {
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device_set_desc(dev, "Texas Instruments TSB43AB21/A/AI/A-EP");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB23)) {
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device_set_desc(dev, "Texas Instruments TSB43AB23");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB82AA2)) {
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device_set_desc(dev, "Texas Instruments TSB82AA2");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4450)) {
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device_set_desc(dev, "Texas Instruments PCI4450");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4410A)) {
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device_set_desc(dev, "Texas Instruments PCI4410A");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4451)) {
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device_set_desc(dev, "Texas Instruments PCI4451");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD1947)) {
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device_printf(dev, "Sony i.LINK (CXD1947) not supported\n");
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return ENXIO;
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}
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if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD3222)) {
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device_set_desc(dev, "Sony i.LINK (CXD3222)");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_VIA | FW_DEVICE_VT6306)) {
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device_set_desc(dev, "VIA Fire II (VT6306)");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C551)) {
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device_set_desc(dev, "Ricoh R5C551");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C552)) {
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device_set_desc(dev, "Ricoh R5C552");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_APPLE | FW_DEVICE_PANGEA)) {
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device_set_desc(dev, "Apple Pangea");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_APPLE | FW_DEVICE_UNINORTH)) {
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device_set_desc(dev, "Apple UniNorth");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_LUCENT | FW_DEVICE_FW322)) {
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device_set_desc(dev, "Lucent FW322/323");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_INTEL | FW_DEVICE_82372FB)) {
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device_set_desc(dev, "Intel 82372FB");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_ADAPTEC | FW_DEVICE_AIC5800)) {
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device_set_desc(dev, "Adaptec AHA-894x/AIC-5800");
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return BUS_PROBE_DEFAULT;
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}
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if (id == (FW_VENDORID_SUN | FW_DEVICE_PCIO2FW)) {
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device_set_desc(dev, "Sun PCIO-2");
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return BUS_PROBE_DEFAULT;
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}
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#endif
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if (pci_get_class(dev) == PCIC_SERIALBUS
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&& pci_get_subclass(dev) == PCIS_SERIALBUS_FW
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&& pci_get_progif(dev) == PCI_INTERFACE_OHCI) {
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if (bootverbose)
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device_printf(dev, "vendor=%x, dev=%x\n",
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pci_get_vendor(dev), pci_get_device(dev));
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device_set_desc(dev, "1394 Open Host Controller Interface");
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return BUS_PROBE_DEFAULT;
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}
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return ENXIO;
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}
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#if defined(__DragonFly__) || __FreeBSD_version < 500000
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static void
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fwohci_dummy_intr(void *arg)
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{
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/* XXX do nothing */
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}
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#endif
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static int
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fwohci_pci_init(device_t self)
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{
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int olatency, latency, ocache_line, cache_line;
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uint16_t cmd;
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cmd = pci_read_config(self, PCIR_COMMAND, 2);
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cmd |= PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
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#if 1 /* for broken hardware */
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cmd &= ~PCIM_CMD_MWRICEN;
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#endif
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pci_write_config(self, PCIR_COMMAND, cmd, 2);
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/*
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* Some Sun PCIO-2 FireWire controllers have their intpin register
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* bogusly set to 0, although it should be 3. Correct that.
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*/
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if (pci_get_devid(self) == (FW_VENDORID_SUN | FW_DEVICE_PCIO2FW) &&
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pci_get_intpin(self) == 0)
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pci_set_intpin(self, 3);
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latency = olatency = pci_read_config(self, PCIR_LATTIMER, 1);
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#define DEF_LATENCY 0x20
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if (olatency < DEF_LATENCY) {
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latency = DEF_LATENCY;
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pci_write_config(self, PCIR_LATTIMER, latency, 1);
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}
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cache_line = ocache_line = pci_read_config(self, PCIR_CACHELNSZ, 1);
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#define DEF_CACHE_LINE 8
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if (ocache_line < DEF_CACHE_LINE) {
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cache_line = DEF_CACHE_LINE;
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pci_write_config(self, PCIR_CACHELNSZ, cache_line, 1);
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}
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if (firewire_debug) {
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device_printf(self, "latency timer %d -> %d.\n",
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olatency, latency);
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device_printf(self, "cache size %d -> %d.\n",
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ocache_line, cache_line);
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}
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return 0;
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}
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static int
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fwohci_pci_attach(device_t self)
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{
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fwohci_softc_t *sc = device_get_softc(self);
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int err;
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int rid;
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#if defined(__DragonFly__) || __FreeBSD_version < 500000
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int intr;
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/* For the moment, put in a message stating what is wrong */
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intr = pci_read_config(self, PCIR_INTLINE, 1);
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if (intr == 0 || intr == 255) {
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device_printf(self, "Invalid irq %d\n", intr);
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#ifdef __i386__
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device_printf(self, "Please switch PNP-OS to 'No' in BIOS\n");
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#endif
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}
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#endif
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#if 0
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if (bootverbose)
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firewire_debug = bootverbose;
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#endif
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mtx_init(FW_GMTX(&sc->fc), "firewire", NULL, MTX_DEF);
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fwohci_pci_init(self);
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rid = PCI_CBMEM;
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#if __FreeBSD_version >= 502109
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sc->bsr = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE);
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#else
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sc->bsr = bus_alloc_resource(self, SYS_RES_MEMORY, &rid,
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0, ~0, 1, RF_ACTIVE);
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#endif
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if (!sc->bsr) {
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device_printf(self, "Could not map memory\n");
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return ENXIO;
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}
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sc->bst = rman_get_bustag(sc->bsr);
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sc->bsh = rman_get_bushandle(sc->bsr);
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rid = 0;
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#if __FreeBSD_version >= 502109
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sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
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RF_SHAREABLE | RF_ACTIVE);
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#else
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sc->irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0, 1,
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RF_SHAREABLE | RF_ACTIVE);
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#endif
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if (sc->irq_res == NULL) {
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device_printf(self, "Could not allocate irq\n");
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fwohci_pci_detach(self);
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return ENXIO;
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}
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err = bus_setup_intr(self, sc->irq_res,
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INTR_TYPE_NET | INTR_MPSAFE,
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NULL, (driver_intr_t *) fwohci_intr,
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sc, &sc->ih);
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#if defined(__DragonFly__) || __FreeBSD_version < 500000
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/* XXX splcam() should mask this irq for sbp.c*/
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err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_CAM,
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(driver_intr_t *) fwohci_dummy_intr, sc, &sc->ih_cam);
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/* XXX splbio() should mask this irq for physio()/fwmem_strategy() */
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err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
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(driver_intr_t *) fwohci_dummy_intr, sc, &sc->ih_bio);
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#endif
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if (err) {
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device_printf(self, "Could not setup irq, %d\n", err);
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fwohci_pci_detach(self);
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return ENXIO;
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}
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err = bus_dma_tag_create(
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#if defined(__FreeBSD__) && __FreeBSD_version >= 700020
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/*parent*/bus_get_dma_tag(self),
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#else
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/*parent*/NULL,
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#endif
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/*alignment*/1,
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/*boundary*/0,
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#if BOUNCE_BUFFER_TEST
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/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
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#else
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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#endif
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/0x100000,
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/*nsegments*/0x20,
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/*maxsegsz*/0x8000,
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/*flags*/BUS_DMA_ALLOCNOW,
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#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
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/*lockfunc*/busdma_lock_mutex,
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/*lockarg*/FW_GMTX(&sc->fc),
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#endif
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&sc->fc.dmat);
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if (err != 0) {
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printf("fwohci_pci_attach: Could not allocate DMA tag "
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"- error %d\n", err);
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return (ENOMEM);
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}
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err = fwohci_init(sc, self);
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if (err) {
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device_printf(self, "fwohci_init failed with err=%d\n", err);
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fwohci_pci_detach(self);
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return EIO;
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}
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/* probe and attach a child device(firewire) */
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bus_generic_probe(self);
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bus_generic_attach(self);
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return 0;
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}
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static int
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fwohci_pci_detach(device_t self)
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{
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fwohci_softc_t *sc = device_get_softc(self);
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int s;
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s = splfw();
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if (sc->bsr)
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fwohci_stop(sc, self);
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bus_generic_detach(self);
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if (sc->fc.bdev) {
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device_delete_child(self, sc->fc.bdev);
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sc->fc.bdev = NULL;
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}
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/* disable interrupts that might have been switched on */
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if (sc->bst && sc->bsh)
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bus_space_write_4(sc->bst, sc->bsh,
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FWOHCI_INTMASKCLR, OHCI_INT_EN);
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if (sc->irq_res) {
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int err;
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if (sc->ih) {
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err = bus_teardown_intr(self, sc->irq_res, sc->ih);
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if (err)
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device_printf(self,
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"Could not tear down irq, %d\n", err);
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#if defined(__DragonFly__) || __FreeBSD_version < 500000
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bus_teardown_intr(self, sc->irq_res, sc->ih_cam);
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bus_teardown_intr(self, sc->irq_res, sc->ih_bio);
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#endif
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sc->ih = NULL;
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}
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bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
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sc->irq_res = NULL;
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}
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if (sc->bsr) {
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bus_release_resource(self, SYS_RES_MEMORY,PCI_CBMEM,sc->bsr);
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sc->bsr = NULL;
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sc->bst = 0;
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sc->bsh = 0;
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}
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fwohci_detach(sc, self);
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mtx_destroy(FW_GMTX(&sc->fc));
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splx(s);
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return 0;
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|
}
|
|
|
|
static int
|
|
fwohci_pci_suspend(device_t dev)
|
|
{
|
|
fwohci_softc_t *sc = device_get_softc(dev);
|
|
int err;
|
|
|
|
device_printf(dev, "fwohci_pci_suspend\n");
|
|
err = bus_generic_suspend(dev);
|
|
if (err)
|
|
return err;
|
|
fwohci_stop(sc, dev);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
fwohci_pci_resume(device_t dev)
|
|
{
|
|
fwohci_softc_t *sc = device_get_softc(dev);
|
|
|
|
fwohci_pci_init(dev);
|
|
fwohci_resume(sc, dev);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
fwohci_pci_shutdown(device_t dev)
|
|
{
|
|
fwohci_softc_t *sc = device_get_softc(dev);
|
|
|
|
bus_generic_shutdown(dev);
|
|
fwohci_stop(sc, dev);
|
|
return 0;
|
|
}
|
|
|
|
static device_t
|
|
fwohci_pci_add_child(device_t dev, u_int order, const char *name, int unit)
|
|
{
|
|
struct fwohci_softc *sc;
|
|
device_t child;
|
|
int err = 0;
|
|
|
|
sc = (struct fwohci_softc *)device_get_softc(dev);
|
|
child = device_add_child(dev, name, unit);
|
|
if (child == NULL)
|
|
return (child);
|
|
|
|
sc->fc.bdev = child;
|
|
device_set_ivars(child, (void *)&sc->fc);
|
|
|
|
err = device_probe_and_attach(child);
|
|
if (err) {
|
|
device_printf(dev, "probe_and_attach failed with err=%d\n",
|
|
err);
|
|
fwohci_pci_detach(dev);
|
|
device_delete_child(dev, child);
|
|
return NULL;
|
|
}
|
|
|
|
/* XXX
|
|
* Clear the bus reset event flag to start transactions even when
|
|
* interrupt is disabled during the boot process.
|
|
*/
|
|
if (cold) {
|
|
int s;
|
|
DELAY(250); /* 2 cycles */
|
|
s = splfw();
|
|
fwohci_poll((void *)sc, 0, -1);
|
|
splx(s);
|
|
}
|
|
|
|
return (child);
|
|
}
|
|
|
|
static device_method_t fwohci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, fwohci_pci_probe),
|
|
DEVMETHOD(device_attach, fwohci_pci_attach),
|
|
DEVMETHOD(device_detach, fwohci_pci_detach),
|
|
DEVMETHOD(device_suspend, fwohci_pci_suspend),
|
|
DEVMETHOD(device_resume, fwohci_pci_resume),
|
|
DEVMETHOD(device_shutdown, fwohci_pci_shutdown),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_add_child, fwohci_pci_add_child),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t fwohci_driver = {
|
|
"fwohci",
|
|
fwohci_methods,
|
|
sizeof(fwohci_softc_t),
|
|
};
|
|
|
|
static devclass_t fwohci_devclass;
|
|
|
|
#ifdef FWOHCI_MODULE
|
|
MODULE_DEPEND(fwohci, firewire, 1, 1, 1);
|
|
#endif
|
|
DRIVER_MODULE(fwohci, pci, fwohci_driver, fwohci_devclass, 0, 0);
|