3042cc43f0
Move the interupt handler to a driver_intr_t type function as it was trying to do way to much for a lightweight filter interrupt function. Introduce much more locking around fc->mtx. Tested this for lock reversals and other such lockups. Locking seems to be working better, but there is much more to do with regard to locking. The most significant lock is in the BUS RESET handler. It was possible, before this checkin, to set a bus reset via "fwcontrol -r" and have the BUS RESET handler fire before the code responsible for asserting BUS RESET was complete. This locking fixes that issue. Move some of the memory allocations in the fc struct to the attach function in firewire.c Rework the businfo.generation indicator to be merely a on/off bit now. It's purpose according to spec is to notify the bus that the config ROM has changed. That's it. Catch and squash a possible panic in SBP where in the SBP_LOCK was held during a possible error case. The error handling code would definitely panic as it would try to acquire the SBP_LOCK on entrance. Catch and squash a camcontrol/device lockup when firewire drives go away. When a firewire device was powered off or disconnected from the firewire bus, a "camcontrol rescan all" would hang trying to poll removed devices as they were not properly detached. Don't do that. Approved by: scottl MFC after: 2 weeks
557 lines
15 KiB
C
557 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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* $FreeBSD$
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*/
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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_MEMEN | 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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|
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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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|
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if (sc->bsr) {
|
|
bus_release_resource(self, SYS_RES_MEMORY,PCI_CBMEM,sc->bsr);
|
|
sc->bsr = NULL;
|
|
sc->bst = 0;
|
|
sc->bsh = 0;
|
|
}
|
|
|
|
fwohci_detach(sc, self);
|
|
mtx_destroy(FW_GMTX(&sc->fc));
|
|
splx(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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, 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(bus_print_child, bus_generic_print_child),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
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);
|
|
DRIVER_MODULE(fwohci, cardbus, fwohci_driver, fwohci_devclass, 0, 0);
|