2388 lines
56 KiB
C
2388 lines
56 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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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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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/eventhandler.h>
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/kdb.h>
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#include <sys/bus.h> /* used by smbus and newbus */
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#include <machine/bus.h>
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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/fwmem.h>
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#include <dev/firewire/iec13213.h>
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#include <dev/firewire/iec68113.h>
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struct crom_src_buf {
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struct crom_src src;
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struct crom_chunk root;
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struct crom_chunk vendor;
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struct crom_chunk hw;
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};
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int firewire_debug = 0, try_bmr = 1, hold_count = 0;
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SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0,
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"FireWire driver debug flag");
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SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
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"FireWire Subsystem");
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SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0,
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"Try to be a bus manager");
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SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0,
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"Number of count of bus resets for removing lost device information");
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MALLOC_DEFINE(M_FW, "firewire", "FireWire");
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MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire");
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#define FW_MAXASYRTY 4
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devclass_t firewire_devclass;
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static void firewire_identify(driver_t *, device_t);
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static int firewire_probe(device_t);
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static int firewire_attach(device_t);
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static int firewire_detach(device_t);
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static int firewire_resume(device_t);
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static void firewire_xfer_timeout(void *, int);
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static device_t firewire_add_child(device_t, u_int, const char *, int);
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static void fw_try_bmr(void *);
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static void fw_try_bmr_callback(struct fw_xfer *);
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static void fw_asystart(struct fw_xfer *);
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static int fw_get_tlabel(struct firewire_comm *, struct fw_xfer *);
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static void fw_bus_probe(void *);
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static void fw_attach_dev(struct firewire_comm *);
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static void fw_bus_probe_thread(void *);
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#ifdef FW_VMACCESS
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static void fw_vmaccess (struct fw_xfer *);
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#endif
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static int fw_bmr (struct firewire_comm *);
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static void fw_dump_hdr(struct fw_pkt *, char *);
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static device_method_t firewire_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, firewire_identify),
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DEVMETHOD(device_probe, firewire_probe),
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DEVMETHOD(device_attach, firewire_attach),
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DEVMETHOD(device_detach, firewire_detach),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, firewire_resume),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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/* Bus interface */
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DEVMETHOD(bus_add_child, firewire_add_child),
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DEVMETHOD_END
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};
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char *linkspeed[] = {
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"S100", "S200", "S400", "S800",
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"S1600", "S3200", "undef", "undef"
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};
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static char *tcode_str[] = {
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"WREQQ", "WREQB", "WRES", "undef",
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"RREQQ", "RREQB", "RRESQ", "RRESB",
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"CYCS", "LREQ", "STREAM", "LRES",
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"undef", "undef", "PHY", "undef"
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};
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/* IEEE-1394a Table C-2 Gap count as a function of hops*/
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#define MAX_GAPHOP 15
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u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18,
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21, 24, 26, 29, 32, 35, 37, 40};
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static driver_t firewire_driver = {
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"firewire",
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firewire_methods,
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sizeof(struct firewire_softc),
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};
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/*
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* Lookup fwdev by node id.
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*/
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struct fw_device *
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fw_noderesolve_nodeid(struct firewire_comm *fc, int dst)
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{
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struct fw_device *fwdev;
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FW_GLOCK(fc);
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STAILQ_FOREACH(fwdev, &fc->devices, link)
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if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
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break;
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FW_GUNLOCK(fc);
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return fwdev;
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}
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/*
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* Lookup fwdev by EUI64.
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*/
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struct fw_device *
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fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui)
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{
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struct fw_device *fwdev;
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FW_GLOCK(fc);
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STAILQ_FOREACH(fwdev, &fc->devices, link)
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if (FW_EUI64_EQUAL(fwdev->eui, *eui))
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break;
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FW_GUNLOCK(fc);
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if (fwdev == NULL)
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return NULL;
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if (fwdev->status == FWDEVINVAL)
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return NULL;
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return fwdev;
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}
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/*
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* Async. request procedure for userland application.
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*/
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int
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fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer)
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{
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int err = 0;
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struct fw_xferq *xferq;
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int len;
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struct fw_pkt *fp;
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int tcode;
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struct tcode_info *info;
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if (xfer == NULL)
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return EINVAL;
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if (xfer->hand == NULL) {
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printf("hand == NULL\n");
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return EINVAL;
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}
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fp = &xfer->send.hdr;
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tcode = fp->mode.common.tcode & 0xf;
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info = &fc->tcode[tcode];
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if (info->flag == 0) {
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printf("invalid tcode=%x\n", tcode);
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return EINVAL;
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}
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/* XXX allow bus explore packets only after bus rest */
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if ((fc->status < FWBUSEXPLORE) &&
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((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) ||
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(fp->mode.rreqq.dest_lo < 0xf0000000) ||
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(fp->mode.rreqq.dest_lo >= 0xf0001000))) {
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xfer->resp = EAGAIN;
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xfer->flag = FWXF_BUSY;
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return (EAGAIN);
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}
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if (info->flag & FWTI_REQ)
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xferq = fc->atq;
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else
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xferq = fc->ats;
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len = info->hdr_len;
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if (xfer->send.pay_len > MAXREC(fc->maxrec)) {
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printf("send.pay_len > maxrec\n");
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return EINVAL;
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}
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if (info->flag & FWTI_BLOCK_STR)
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len = fp->mode.stream.len;
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else if (info->flag & FWTI_BLOCK_ASY)
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len = fp->mode.rresb.len;
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else
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len = 0;
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if (len != xfer->send.pay_len) {
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printf("len(%d) != send.pay_len(%d) %s(%x)\n",
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len, xfer->send.pay_len, tcode_str[tcode], tcode);
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return EINVAL;
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}
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if (xferq->start == NULL) {
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printf("xferq->start == NULL\n");
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return EINVAL;
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}
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if (!(xferq->queued < xferq->maxq)) {
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device_printf(fc->bdev, "Discard a packet (queued=%d)\n",
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xferq->queued);
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return EAGAIN;
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}
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xfer->tl = -1;
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if (info->flag & FWTI_TLABEL) {
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if (fw_get_tlabel(fc, xfer) < 0)
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return EAGAIN;
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}
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xfer->resp = 0;
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xfer->fc = fc;
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xfer->q = xferq;
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fw_asystart(xfer);
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return err;
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}
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/*
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* Wakeup blocked process.
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*/
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void
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fw_xferwake(struct fw_xfer *xfer)
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{
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struct mtx *lock = &xfer->fc->wait_lock;
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mtx_lock(lock);
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xfer->flag |= FWXF_WAKE;
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mtx_unlock(lock);
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wakeup(xfer);
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return;
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}
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int
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fw_xferwait(struct fw_xfer *xfer)
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{
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struct mtx *lock = &xfer->fc->wait_lock;
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int err = 0;
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mtx_lock(lock);
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while ((xfer->flag & FWXF_WAKE) == 0)
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err = msleep(xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0);
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mtx_unlock(lock);
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return (err);
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}
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/*
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* Async. request with given xfer structure.
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*/
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static void
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fw_asystart(struct fw_xfer *xfer)
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{
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struct firewire_comm *fc = xfer->fc;
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/* Protect from interrupt/timeout */
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FW_GLOCK(fc);
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xfer->flag = FWXF_INQ;
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STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link);
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#if 0
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xfer->q->queued++;
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#endif
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FW_GUNLOCK(fc);
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/* XXX just queue for mbuf */
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if (xfer->mbuf == NULL)
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xfer->q->start(fc);
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return;
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}
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static void
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firewire_identify(driver_t *driver, device_t parent)
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{
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BUS_ADD_CHILD(parent, 0, "firewire", -1);
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}
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static int
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firewire_probe(device_t dev)
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{
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device_set_desc(dev, "IEEE1394(FireWire) bus");
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return (0);
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}
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/* Just use a per-packet callout? */
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static void
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firewire_xfer_timeout(void *arg, int pending)
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{
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struct firewire_comm *fc = (struct firewire_comm *)arg;
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struct fw_xfer *xfer, *txfer;
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struct timeval tv;
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struct timeval split_timeout;
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STAILQ_HEAD(, fw_xfer) xfer_timeout;
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int i;
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split_timeout.tv_sec = 0;
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split_timeout.tv_usec = 200 * 1000; /* 200 msec */
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microtime(&tv);
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timevalsub(&tv, &split_timeout);
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STAILQ_INIT(&xfer_timeout);
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mtx_lock(&fc->tlabel_lock);
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for (i = 0; i < nitems(fc->tlabels); i++) {
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while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
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if ((xfer->flag & FWXF_SENT) == 0)
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/* not sent yet */
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break;
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if (timevalcmp(&xfer->tv, &tv, >))
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/* the rests are newer than this */
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break;
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device_printf(fc->bdev,
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"split transaction timeout: tl=0x%x flag=0x%02x\n",
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i, xfer->flag);
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fw_dump_hdr(&xfer->send.hdr, "send");
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xfer->resp = ETIMEDOUT;
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xfer->tl = -1;
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STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
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STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel);
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}
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}
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mtx_unlock(&fc->tlabel_lock);
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fc->timeout(fc);
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STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer)
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xfer->hand(xfer);
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}
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#define WATCHDOG_HZ 10
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static void
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firewire_watchdog(void *arg)
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{
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struct firewire_comm *fc;
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static int watchdog_clock = 0;
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fc = arg;
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/*
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* At boot stage, the device interrupt is disabled and
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* We encounter a timeout easily. To avoid this,
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* ignore clock interrupt for a while.
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*/
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if (watchdog_clock > WATCHDOG_HZ * 15)
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taskqueue_enqueue(fc->taskqueue, &fc->task_timeout);
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else
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watchdog_clock++;
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callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ,
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firewire_watchdog, fc);
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}
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/*
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* The attach routine.
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*/
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static int
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firewire_attach(device_t dev)
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{
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int unit;
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struct firewire_softc *sc = device_get_softc(dev);
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device_t pa = device_get_parent(dev);
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struct firewire_comm *fc;
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fc = device_get_softc(pa);
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sc->fc = fc;
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fc->status = FWBUSNOTREADY;
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unit = device_get_unit(dev);
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if (fc->nisodma > FWMAXNDMA)
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fc->nisodma = FWMAXNDMA;
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fwdev_makedev(sc);
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fc->crom_src_buf = malloc(sizeof(struct crom_src_buf),
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M_FW, M_NOWAIT | M_ZERO);
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if (fc->crom_src_buf == NULL) {
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device_printf(fc->dev,
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"%s: unable to allocate crom src buffer\n", __func__);
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return ENOMEM;
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}
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fc->topology_map = malloc(sizeof(struct fw_topology_map),
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M_FW, M_NOWAIT | M_ZERO);
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if (fc->topology_map == NULL) {
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device_printf(fc->dev, "%s: unable to allocate topology map\n",
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__func__);
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free(fc->crom_src_buf, M_FW);
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return ENOMEM;
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}
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fc->speed_map = malloc(sizeof(struct fw_speed_map),
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M_FW, M_NOWAIT | M_ZERO);
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if (fc->speed_map == NULL) {
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device_printf(fc->dev, "%s: unable to allocate speed map\n",
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__func__);
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free(fc->crom_src_buf, M_FW);
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free(fc->topology_map, M_FW);
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return ENOMEM;
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}
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mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF);
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mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF);
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CALLOUT_INIT(&fc->timeout_callout);
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CALLOUT_INIT(&fc->bmr_callout);
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CALLOUT_INIT(&fc->busprobe_callout);
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TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, fc);
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callout_reset(&sc->fc->timeout_callout, hz,
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firewire_watchdog, sc->fc);
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/* create thread */
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kproc_create(fw_bus_probe_thread, fc, &fc->probe_thread,
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0, 0, "fw%d_probe", unit);
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/* Locate our children */
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bus_generic_probe(dev);
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/* launch attachement of the added children */
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bus_generic_attach(dev);
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/* bus_reset */
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FW_GLOCK(fc);
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fw_busreset(fc, FWBUSNOTREADY);
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FW_GUNLOCK(fc);
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fc->ibr(fc);
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return 0;
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}
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|
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/*
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* Attach it as child.
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*/
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static device_t
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firewire_add_child(device_t dev, u_int order, const char *name, int unit)
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{
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device_t child;
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struct firewire_softc *sc;
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sc = device_get_softc(dev);
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child = device_add_child(dev, name, unit);
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if (child) {
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device_set_ivars(child, sc->fc);
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device_probe_and_attach(child);
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}
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return child;
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}
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static int
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firewire_resume(device_t dev)
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{
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struct firewire_softc *sc;
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sc = device_get_softc(dev);
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sc->fc->status = FWBUSNOTREADY;
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bus_generic_resume(dev);
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return (0);
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}
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/*
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* Detach it.
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*/
|
|
static int
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firewire_detach(device_t dev)
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{
|
|
struct firewire_softc *sc;
|
|
struct firewire_comm *fc;
|
|
struct fw_device *fwdev, *fwdev_next;
|
|
int err;
|
|
|
|
sc = device_get_softc(dev);
|
|
fc = sc->fc;
|
|
mtx_lock(&fc->wait_lock);
|
|
fc->status = FWBUSDETACH;
|
|
wakeup(fc);
|
|
if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60))
|
|
printf("firewire probe thread didn't die\n");
|
|
mtx_unlock(&fc->wait_lock);
|
|
|
|
if (fc->arq != 0 && fc->arq->maxq > 0)
|
|
fw_drain_txq(fc);
|
|
|
|
if ((err = fwdev_destroydev(sc)) != 0)
|
|
return err;
|
|
|
|
if ((err = bus_generic_detach(dev)) != 0)
|
|
return err;
|
|
|
|
callout_stop(&fc->timeout_callout);
|
|
callout_stop(&fc->bmr_callout);
|
|
callout_stop(&fc->busprobe_callout);
|
|
|
|
/* XXX xfer_free and untimeout on all xfers */
|
|
for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL;
|
|
fwdev = fwdev_next) {
|
|
fwdev_next = STAILQ_NEXT(fwdev, link);
|
|
free(fwdev, M_FW);
|
|
}
|
|
free(fc->topology_map, M_FW);
|
|
free(fc->speed_map, M_FW);
|
|
free(fc->crom_src_buf, M_FW);
|
|
|
|
mtx_destroy(&fc->tlabel_lock);
|
|
mtx_destroy(&fc->wait_lock);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fw_xferq_drain(struct fw_xferq *xferq)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
|
|
while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
|
|
STAILQ_REMOVE_HEAD(&xferq->q, link);
|
|
#if 0
|
|
xferq->queued--;
|
|
#endif
|
|
xfer->resp = EAGAIN;
|
|
xfer->flag = FWXF_SENTERR;
|
|
fw_xfer_done(xfer);
|
|
}
|
|
}
|
|
|
|
void
|
|
fw_drain_txq(struct firewire_comm *fc)
|
|
{
|
|
struct fw_xfer *xfer, *txfer;
|
|
STAILQ_HEAD(, fw_xfer) xfer_drain;
|
|
int i;
|
|
|
|
STAILQ_INIT(&xfer_drain);
|
|
|
|
FW_GLOCK(fc);
|
|
fw_xferq_drain(fc->atq);
|
|
fw_xferq_drain(fc->ats);
|
|
for (i = 0; i < fc->nisodma; i++)
|
|
fw_xferq_drain(fc->it[i]);
|
|
FW_GUNLOCK(fc);
|
|
|
|
mtx_lock(&fc->tlabel_lock);
|
|
for (i = 0; i < 0x40; i++)
|
|
while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) {
|
|
if (firewire_debug)
|
|
printf("tl=%d flag=%d\n", i, xfer->flag);
|
|
xfer->tl = -1;
|
|
xfer->resp = EAGAIN;
|
|
STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel);
|
|
STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel);
|
|
}
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
|
|
STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer)
|
|
xfer->hand(xfer);
|
|
}
|
|
|
|
static void
|
|
fw_reset_csr(struct firewire_comm *fc)
|
|
{
|
|
int i;
|
|
|
|
CSRARC(fc, STATE_CLEAR)
|
|
= 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14;
|
|
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
|
|
CSRARC(fc, NODE_IDS) = 0x3f;
|
|
|
|
CSRARC(fc, TOPO_MAP + 8) = 0;
|
|
fc->irm = -1;
|
|
|
|
fc->max_node = -1;
|
|
|
|
for (i = 2; i < 0x100 / 4 - 2; i++) {
|
|
CSRARC(fc, SPED_MAP + i * 4) = 0;
|
|
}
|
|
CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14;
|
|
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
|
|
CSRARC(fc, RESET_START) = 0;
|
|
CSRARC(fc, SPLIT_TIMEOUT_HI) = 0;
|
|
CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19;
|
|
CSRARC(fc, CYCLE_TIME) = 0x0;
|
|
CSRARC(fc, BUS_TIME) = 0x0;
|
|
CSRARC(fc, BUS_MGR_ID) = 0x3f;
|
|
CSRARC(fc, BANDWIDTH_AV) = 4915;
|
|
CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff;
|
|
CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff;
|
|
CSRARC(fc, IP_CHANNELS) = (1U << 31);
|
|
|
|
CSRARC(fc, CONF_ROM) = 0x04 << 24;
|
|
CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */
|
|
CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 |
|
|
1 << 28 | 0xff << 16 | 0x09 << 8;
|
|
CSRARC(fc, CONF_ROM + 0xc) = 0;
|
|
|
|
/* DV depend CSRs see blue book */
|
|
CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON;
|
|
CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON;
|
|
|
|
CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14);
|
|
CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR);
|
|
}
|
|
|
|
static void
|
|
fw_init_crom(struct firewire_comm *fc)
|
|
{
|
|
struct crom_src *src;
|
|
|
|
src = &fc->crom_src_buf->src;
|
|
bzero(src, sizeof(struct crom_src));
|
|
|
|
/* BUS info sample */
|
|
src->hdr.info_len = 4;
|
|
|
|
src->businfo.bus_name = CSR_BUS_NAME_IEEE1394;
|
|
|
|
src->businfo.irmc = 1;
|
|
src->businfo.cmc = 1;
|
|
src->businfo.isc = 1;
|
|
src->businfo.bmc = 1;
|
|
src->businfo.pmc = 0;
|
|
src->businfo.cyc_clk_acc = 100;
|
|
src->businfo.max_rec = fc->maxrec;
|
|
src->businfo.max_rom = MAXROM_4;
|
|
#define FW_GENERATION_CHANGEABLE 2
|
|
src->businfo.generation = FW_GENERATION_CHANGEABLE;
|
|
src->businfo.link_spd = fc->speed;
|
|
|
|
src->businfo.eui64.hi = fc->eui.hi;
|
|
src->businfo.eui64.lo = fc->eui.lo;
|
|
|
|
STAILQ_INIT(&src->chunk_list);
|
|
|
|
fc->crom_src = src;
|
|
fc->crom_root = &fc->crom_src_buf->root;
|
|
}
|
|
|
|
static void
|
|
fw_reset_crom(struct firewire_comm *fc)
|
|
{
|
|
struct crom_src_buf *buf;
|
|
struct crom_src *src;
|
|
struct crom_chunk *root;
|
|
|
|
buf = fc->crom_src_buf;
|
|
src = fc->crom_src;
|
|
root = fc->crom_root;
|
|
|
|
STAILQ_INIT(&src->chunk_list);
|
|
|
|
bzero(root, sizeof(struct crom_chunk));
|
|
crom_add_chunk(src, NULL, root, 0);
|
|
crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */
|
|
/* private company_id */
|
|
crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE);
|
|
crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project");
|
|
crom_add_entry(root, CSRKEY_HW, __FreeBSD_version);
|
|
mtx_lock(&prison0.pr_mtx);
|
|
crom_add_simple_text(src, root, &buf->hw, prison0.pr_hostname);
|
|
mtx_unlock(&prison0.pr_mtx);
|
|
}
|
|
|
|
/*
|
|
* Called after bus reset.
|
|
*/
|
|
void
|
|
fw_busreset(struct firewire_comm *fc, uint32_t new_status)
|
|
{
|
|
struct firewire_dev_comm *fdc;
|
|
struct crom_src *src;
|
|
device_t *devlistp;
|
|
uint32_t *newrom;
|
|
int i, devcnt;
|
|
|
|
FW_GLOCK_ASSERT(fc);
|
|
if (fc->status == FWBUSMGRELECT)
|
|
callout_stop(&fc->bmr_callout);
|
|
|
|
fc->status = new_status;
|
|
fw_reset_csr(fc);
|
|
|
|
if (fc->status == FWBUSNOTREADY)
|
|
fw_init_crom(fc);
|
|
|
|
fw_reset_crom(fc);
|
|
|
|
if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) {
|
|
for (i = 0; i < devcnt; i++)
|
|
if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
|
|
fdc = device_get_softc(devlistp[i]);
|
|
if (fdc->post_busreset != NULL)
|
|
fdc->post_busreset(fdc);
|
|
}
|
|
free(devlistp, M_TEMP);
|
|
}
|
|
|
|
src = &fc->crom_src_buf->src;
|
|
/*
|
|
* If the old config rom needs to be overwritten,
|
|
* bump the businfo.generation indicator to
|
|
* indicate that we need to be reprobed
|
|
* See 1394a-2000 8.3.2.5.4 for more details.
|
|
* generation starts at 2 and rolls over at 0xF
|
|
* back to 2.
|
|
*
|
|
* A generation of 0 indicates a device
|
|
* that is not 1394a-2000 compliant.
|
|
* A generation of 1 indicates a device that
|
|
* does not change it's Bus Info Block or
|
|
* Configuration ROM.
|
|
*/
|
|
#define FW_MAX_GENERATION 0xF
|
|
newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO);
|
|
src = &fc->crom_src_buf->src;
|
|
crom_load(src, newrom, CROMSIZE);
|
|
if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) {
|
|
/* Bump generation and reload. */
|
|
src->businfo.generation++;
|
|
|
|
/* Handle generation count wraps. */
|
|
if (src->businfo.generation < FW_GENERATION_CHANGEABLE)
|
|
src->businfo.generation = FW_GENERATION_CHANGEABLE;
|
|
|
|
/* Recalculate CRC to account for generation change. */
|
|
crom_load(src, newrom, CROMSIZE);
|
|
bcopy(newrom, fc->config_rom, CROMSIZE);
|
|
}
|
|
free(newrom, M_FW);
|
|
}
|
|
|
|
/* Call once after reboot */
|
|
void fw_init(struct firewire_comm *fc)
|
|
{
|
|
int i;
|
|
#ifdef FW_VMACCESS
|
|
struct fw_xfer *xfer;
|
|
struct fw_bind *fwb;
|
|
#endif
|
|
|
|
fc->arq->queued = 0;
|
|
fc->ars->queued = 0;
|
|
fc->atq->queued = 0;
|
|
fc->ats->queued = 0;
|
|
|
|
fc->arq->buf = NULL;
|
|
fc->ars->buf = NULL;
|
|
fc->atq->buf = NULL;
|
|
fc->ats->buf = NULL;
|
|
|
|
fc->arq->flag = 0;
|
|
fc->ars->flag = 0;
|
|
fc->atq->flag = 0;
|
|
fc->ats->flag = 0;
|
|
|
|
STAILQ_INIT(&fc->atq->q);
|
|
STAILQ_INIT(&fc->ats->q);
|
|
|
|
for (i = 0; i < fc->nisodma; i++) {
|
|
fc->it[i]->queued = 0;
|
|
fc->ir[i]->queued = 0;
|
|
|
|
fc->it[i]->start = NULL;
|
|
fc->ir[i]->start = NULL;
|
|
|
|
fc->it[i]->buf = NULL;
|
|
fc->ir[i]->buf = NULL;
|
|
|
|
fc->it[i]->flag = FWXFERQ_STREAM;
|
|
fc->ir[i]->flag = FWXFERQ_STREAM;
|
|
|
|
STAILQ_INIT(&fc->it[i]->q);
|
|
STAILQ_INIT(&fc->ir[i]->q);
|
|
}
|
|
|
|
fc->arq->maxq = FWMAXQUEUE;
|
|
fc->ars->maxq = FWMAXQUEUE;
|
|
fc->atq->maxq = FWMAXQUEUE;
|
|
fc->ats->maxq = FWMAXQUEUE;
|
|
|
|
for (i = 0; i < fc->nisodma; i++) {
|
|
fc->ir[i]->maxq = FWMAXQUEUE;
|
|
fc->it[i]->maxq = FWMAXQUEUE;
|
|
}
|
|
|
|
CSRARC(fc, TOPO_MAP) = 0x3f1 << 16;
|
|
CSRARC(fc, TOPO_MAP + 4) = 1;
|
|
CSRARC(fc, SPED_MAP) = 0x3f1 << 16;
|
|
CSRARC(fc, SPED_MAP + 4) = 1;
|
|
|
|
STAILQ_INIT(&fc->devices);
|
|
|
|
/* Initialize Async handlers */
|
|
STAILQ_INIT(&fc->binds);
|
|
for (i = 0; i < 0x40; i++) {
|
|
STAILQ_INIT(&fc->tlabels[i]);
|
|
}
|
|
|
|
/* DV depend CSRs see blue book */
|
|
#if 0
|
|
CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */
|
|
CSRARC(fc, oPCR) = 0x8000007a;
|
|
for (i = 4; i < 0x7c/4; i += 4) {
|
|
CSRARC(fc, i + oPCR) = 0x8000007a;
|
|
}
|
|
|
|
CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */
|
|
CSRARC(fc, iPCR) = 0x803f0000;
|
|
for (i = 4; i < 0x7c/4; i += 4) {
|
|
CSRARC(fc, i + iPCR) = 0x0;
|
|
}
|
|
#endif
|
|
|
|
fc->crom_src_buf = NULL;
|
|
|
|
#ifdef FW_VMACCESS
|
|
xfer = fw_xfer_alloc();
|
|
if (xfer == NULL)
|
|
return;
|
|
|
|
fwb = malloc(sizeof(struct fw_bind), M_FW, M_NOWAIT);
|
|
if (fwb == NULL) {
|
|
fw_xfer_free(xfer);
|
|
return;
|
|
}
|
|
xfer->hand = fw_vmaccess;
|
|
xfer->fc = fc;
|
|
xfer->sc = NULL;
|
|
|
|
fwb->start_hi = 0x2;
|
|
fwb->start_lo = 0;
|
|
fwb->addrlen = 0xffffffff;
|
|
fwb->xfer = xfer;
|
|
fw_bindadd(fc, fwb);
|
|
#endif
|
|
}
|
|
|
|
#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)? -1 : \
|
|
((fwb)->end < (addr)) ? 1 : 0)
|
|
|
|
/*
|
|
* To lookup bound process from IEEE1394 address.
|
|
*/
|
|
struct fw_bind *
|
|
fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo)
|
|
{
|
|
u_int64_t addr;
|
|
struct fw_bind *tfw, *r = NULL;
|
|
|
|
addr = ((u_int64_t)dest_hi << 32) | dest_lo;
|
|
FW_GLOCK(fc);
|
|
STAILQ_FOREACH(tfw, &fc->binds, fclist)
|
|
if (BIND_CMP(addr, tfw) == 0) {
|
|
r = tfw;
|
|
break;
|
|
}
|
|
FW_GUNLOCK(fc);
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* To bind IEEE1394 address block to process.
|
|
*/
|
|
int
|
|
fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb)
|
|
{
|
|
struct fw_bind *tfw, *prev = NULL;
|
|
int r = 0;
|
|
|
|
if (fwb->start > fwb->end) {
|
|
printf("%s: invalid range\n", __func__);
|
|
return EINVAL;
|
|
}
|
|
|
|
FW_GLOCK(fc);
|
|
STAILQ_FOREACH(tfw, &fc->binds, fclist) {
|
|
if (fwb->end < tfw->start)
|
|
break;
|
|
prev = tfw;
|
|
}
|
|
if (prev == NULL)
|
|
STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist);
|
|
else if (prev->end < fwb->start)
|
|
STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist);
|
|
else {
|
|
printf("%s: bind failed\n", __func__);
|
|
r = EBUSY;
|
|
}
|
|
FW_GUNLOCK(fc);
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* To free IEEE1394 address block.
|
|
*/
|
|
int
|
|
fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb)
|
|
{
|
|
#if 0
|
|
struct fw_xfer *xfer, *next;
|
|
#endif
|
|
struct fw_bind *tfw;
|
|
int s;
|
|
|
|
s = splfw();
|
|
FW_GLOCK(fc);
|
|
STAILQ_FOREACH(tfw, &fc->binds, fclist)
|
|
if (tfw == fwb) {
|
|
STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
|
|
goto found;
|
|
}
|
|
|
|
printf("%s: no such binding\n", __func__);
|
|
FW_GUNLOCK(fc);
|
|
splx(s);
|
|
return (1);
|
|
found:
|
|
#if 0
|
|
/* shall we do this? */
|
|
for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) {
|
|
next = STAILQ_NEXT(xfer, link);
|
|
fw_xfer_free(xfer);
|
|
}
|
|
STAILQ_INIT(&fwb->xferlist);
|
|
#endif
|
|
FW_GUNLOCK(fc);
|
|
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type,
|
|
int slen, int rlen, int n,
|
|
struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *))
|
|
{
|
|
int i, s;
|
|
struct fw_xfer *xfer;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
xfer = fw_xfer_alloc_buf(type, slen, rlen);
|
|
if (xfer == NULL)
|
|
return (i);
|
|
xfer->fc = fc;
|
|
xfer->sc = sc;
|
|
xfer->hand = hand;
|
|
s = splfw();
|
|
STAILQ_INSERT_TAIL(q, xfer, link);
|
|
splx(s);
|
|
}
|
|
return (n);
|
|
}
|
|
|
|
void
|
|
fw_xferlist_remove(struct fw_xferlist *q)
|
|
{
|
|
struct fw_xfer *xfer, *next;
|
|
|
|
for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) {
|
|
next = STAILQ_NEXT(xfer, link);
|
|
fw_xfer_free_buf(xfer);
|
|
}
|
|
STAILQ_INIT(q);
|
|
}
|
|
/*
|
|
* dump packet header
|
|
*/
|
|
static void
|
|
fw_dump_hdr(struct fw_pkt *fp, char *prefix)
|
|
{
|
|
printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x "
|
|
"src=0x%03x\n", prefix,
|
|
fp->mode.hdr.dst & 0x3f,
|
|
fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3,
|
|
fp->mode.hdr.tcode, fp->mode.hdr.pri,
|
|
fp->mode.hdr.src);
|
|
}
|
|
|
|
/*
|
|
* To free transaction label.
|
|
*/
|
|
static void
|
|
fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer)
|
|
{
|
|
struct fw_xfer *txfer;
|
|
|
|
mtx_lock(&fc->tlabel_lock);
|
|
if (xfer->tl < 0) {
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
return;
|
|
}
|
|
/* make sure the label is allocated */
|
|
STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel)
|
|
if (txfer == xfer)
|
|
break;
|
|
if (txfer == NULL) {
|
|
printf("%s: the xfer is not in the queue "
|
|
"(tlabel=%d, flag=0x%x)\n",
|
|
__FUNCTION__, xfer->tl, xfer->flag);
|
|
fw_dump_hdr(&xfer->send.hdr, "send");
|
|
fw_dump_hdr(&xfer->recv.hdr, "recv");
|
|
kdb_backtrace();
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
return;
|
|
}
|
|
|
|
STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel);
|
|
xfer->tl = -1;
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* To obtain XFER structure by transaction label.
|
|
*/
|
|
static struct fw_xfer *
|
|
fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
int s = splfw();
|
|
int req;
|
|
|
|
mtx_lock(&fc->tlabel_lock);
|
|
STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel)
|
|
if (xfer->send.hdr.mode.hdr.dst == node) {
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
splx(s);
|
|
KASSERT(xfer->tl == tlabel,
|
|
("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel));
|
|
/* extra sanity check */
|
|
req = xfer->send.hdr.mode.hdr.tcode;
|
|
if (xfer->fc->tcode[req].valid_res != tcode) {
|
|
printf("%s: invalid response tcode "
|
|
"(0x%x for 0x%x)\n", __FUNCTION__,
|
|
tcode, req);
|
|
return (NULL);
|
|
}
|
|
|
|
if (firewire_debug > 2)
|
|
printf("fw_tl2xfer: found tl=%d\n", tlabel);
|
|
return (xfer);
|
|
}
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
if (firewire_debug > 1)
|
|
printf("fw_tl2xfer: not found tl=%d\n", tlabel);
|
|
splx(s);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* To allocate IEEE1394 XFER structure.
|
|
*/
|
|
struct fw_xfer *
|
|
fw_xfer_alloc(struct malloc_type *type)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
|
|
xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO);
|
|
if (xfer == NULL)
|
|
return xfer;
|
|
|
|
xfer->malloc = type;
|
|
xfer->tl = -1;
|
|
|
|
return xfer;
|
|
}
|
|
|
|
struct fw_xfer *
|
|
fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
|
|
xfer = fw_xfer_alloc(type);
|
|
if (xfer == NULL)
|
|
return (NULL);
|
|
xfer->send.pay_len = send_len;
|
|
xfer->recv.pay_len = recv_len;
|
|
if (send_len > 0) {
|
|
xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO);
|
|
if (xfer->send.payload == NULL) {
|
|
fw_xfer_free(xfer);
|
|
return (NULL);
|
|
}
|
|
}
|
|
if (recv_len > 0) {
|
|
xfer->recv.payload = malloc(recv_len, type, M_NOWAIT);
|
|
if (xfer->recv.payload == NULL) {
|
|
if (xfer->send.payload != NULL)
|
|
free(xfer->send.payload, type);
|
|
fw_xfer_free(xfer);
|
|
return (NULL);
|
|
}
|
|
}
|
|
return (xfer);
|
|
}
|
|
|
|
/*
|
|
* IEEE1394 XFER post process.
|
|
*/
|
|
void
|
|
fw_xfer_done(struct fw_xfer *xfer)
|
|
{
|
|
if (xfer->hand == NULL) {
|
|
printf("hand == NULL\n");
|
|
return;
|
|
}
|
|
|
|
if (xfer->fc == NULL)
|
|
panic("fw_xfer_done: why xfer->fc is NULL?");
|
|
|
|
fw_tl_free(xfer->fc, xfer);
|
|
xfer->hand(xfer);
|
|
}
|
|
|
|
void
|
|
fw_xfer_unload(struct fw_xfer *xfer)
|
|
{
|
|
|
|
if (xfer == NULL)
|
|
return;
|
|
|
|
if (xfer->fc != NULL) {
|
|
FW_GLOCK(xfer->fc);
|
|
if (xfer->flag & FWXF_INQ) {
|
|
STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link);
|
|
xfer->flag &= ~FWXF_INQ;
|
|
#if 0
|
|
xfer->q->queued--;
|
|
#endif
|
|
}
|
|
FW_GUNLOCK(xfer->fc);
|
|
|
|
/*
|
|
* Ensure that any tlabel owner can't access this
|
|
* xfer after it's freed.
|
|
*/
|
|
fw_tl_free(xfer->fc, xfer);
|
|
#if 1
|
|
if (xfer->flag & FWXF_START)
|
|
/*
|
|
* This could happen if:
|
|
* 1. We call fwohci_arcv() before fwohci_txd().
|
|
* 2. firewire_watch() is called.
|
|
*/
|
|
printf("fw_xfer_free FWXF_START\n");
|
|
#endif
|
|
}
|
|
xfer->flag = FWXF_INIT;
|
|
xfer->resp = 0;
|
|
}
|
|
|
|
/*
|
|
* To free IEEE1394 XFER structure.
|
|
*/
|
|
void
|
|
fw_xfer_free_buf(struct fw_xfer *xfer)
|
|
{
|
|
if (xfer == NULL) {
|
|
printf("%s: xfer == NULL\n", __func__);
|
|
return;
|
|
}
|
|
fw_xfer_unload(xfer);
|
|
if (xfer->send.payload != NULL)
|
|
free(xfer->send.payload, xfer->malloc);
|
|
if (xfer->recv.payload != NULL)
|
|
free(xfer->recv.payload, xfer->malloc);
|
|
free(xfer, xfer->malloc);
|
|
}
|
|
|
|
void
|
|
fw_xfer_free(struct fw_xfer *xfer)
|
|
{
|
|
if (xfer == NULL) {
|
|
printf("%s: xfer == NULL\n", __func__);
|
|
return;
|
|
}
|
|
fw_xfer_unload(xfer);
|
|
free(xfer, xfer->malloc);
|
|
}
|
|
|
|
void
|
|
fw_asy_callback_free(struct fw_xfer *xfer)
|
|
{
|
|
#if 0
|
|
printf("asyreq done flag=0x%02x resp=%d\n",
|
|
xfer->flag, xfer->resp);
|
|
#endif
|
|
fw_xfer_free(xfer);
|
|
}
|
|
|
|
/*
|
|
* To configure PHY.
|
|
*/
|
|
static void
|
|
fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
struct fw_pkt *fp;
|
|
|
|
fc->status = FWBUSPHYCONF;
|
|
|
|
xfer = fw_xfer_alloc(M_FWXFER);
|
|
if (xfer == NULL)
|
|
return;
|
|
xfer->fc = fc;
|
|
xfer->hand = fw_asy_callback_free;
|
|
|
|
fp = &xfer->send.hdr;
|
|
fp->mode.ld[1] = 0;
|
|
if (root_node >= 0)
|
|
fp->mode.ld[1] |= (1 << 23) | (root_node & 0x3f) << 24;
|
|
if (gap_count >= 0)
|
|
fp->mode.ld[1] |= (1 << 22) | (gap_count & 0x3f) << 16;
|
|
fp->mode.ld[2] = ~fp->mode.ld[1];
|
|
/* XXX Dangerous, how to pass PHY packet to device driver */
|
|
fp->mode.common.tcode |= FWTCODE_PHY;
|
|
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s: root_node=%d gap_count=%d\n",
|
|
__func__, root_node, gap_count);
|
|
fw_asyreq(fc, -1, xfer);
|
|
}
|
|
|
|
/*
|
|
* Dump self ID.
|
|
*/
|
|
static void
|
|
fw_print_sid(uint32_t sid)
|
|
{
|
|
union fw_self_id *s;
|
|
s = (union fw_self_id *) &sid;
|
|
if (s->p0.sequel) {
|
|
if (s->p1.sequence_num == FW_SELF_ID_PAGE0) {
|
|
printf("node:%d p3:%d p4:%d p5:%d p6:%d p7:%d"
|
|
"p8:%d p9:%d p10:%d\n",
|
|
s->p1.phy_id, s->p1.port3, s->p1.port4,
|
|
s->p1.port5, s->p1.port6, s->p1.port7,
|
|
s->p1.port8, s->p1.port9, s->p1.port10);
|
|
} else if (s->p2.sequence_num == FW_SELF_ID_PAGE1) {
|
|
printf("node:%d p11:%d p12:%d p13:%d p14:%d p15:%d\n",
|
|
s->p2.phy_id, s->p2.port11, s->p2.port12,
|
|
s->p2.port13, s->p2.port14, s->p2.port15);
|
|
} else {
|
|
printf("node:%d Unknown Self ID Page number %d\n",
|
|
s->p1.phy_id, s->p1.sequence_num);
|
|
}
|
|
} else {
|
|
printf("node:%d link:%d gap:%d spd:%d con:%d pwr:%d"
|
|
" p0:%d p1:%d p2:%d i:%d m:%d\n",
|
|
s->p0.phy_id, s->p0.link_active, s->p0.gap_count,
|
|
s->p0.phy_speed, s->p0.contender,
|
|
s->p0.power_class, s->p0.port0, s->p0.port1,
|
|
s->p0.port2, s->p0.initiated_reset, s->p0.more_packets);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* To receive self ID.
|
|
*/
|
|
void fw_sidrcv(struct firewire_comm *fc, uint32_t *sid, u_int len)
|
|
{
|
|
uint32_t *p;
|
|
union fw_self_id *self_id;
|
|
u_int i, j, node, c_port = 0, i_branch = 0;
|
|
|
|
fc->sid_cnt = len / (sizeof(uint32_t) * 2);
|
|
fc->max_node = fc->nodeid & 0x3f;
|
|
CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16;
|
|
fc->status = FWBUSCYMELECT;
|
|
fc->topology_map->crc_len = 2;
|
|
fc->topology_map->generation++;
|
|
fc->topology_map->self_id_count = 0;
|
|
fc->topology_map->node_count= 0;
|
|
fc->speed_map->generation++;
|
|
fc->speed_map->crc_len = 1 + (64 * 64 + 3) / 4;
|
|
self_id = &fc->topology_map->self_id[0];
|
|
for (i = 0; i < fc->sid_cnt; i++) {
|
|
if (sid[1] != ~sid[0]) {
|
|
device_printf(fc->bdev,
|
|
"%s: ERROR invalid self-id packet\n", __func__);
|
|
sid += 2;
|
|
continue;
|
|
}
|
|
*self_id = *((union fw_self_id *)sid);
|
|
fc->topology_map->crc_len++;
|
|
if (self_id->p0.sequel == 0) {
|
|
fc->topology_map->node_count++;
|
|
c_port = 0;
|
|
if (firewire_debug)
|
|
fw_print_sid(sid[0]);
|
|
node = self_id->p0.phy_id;
|
|
if (fc->max_node < node)
|
|
fc->max_node = self_id->p0.phy_id;
|
|
/* XXX I'm not sure this is the right speed_map */
|
|
fc->speed_map->speed[node][node] =
|
|
self_id->p0.phy_speed;
|
|
for (j = 0; j < node; j++) {
|
|
fc->speed_map->speed[j][node] =
|
|
fc->speed_map->speed[node][j] =
|
|
min(fc->speed_map->speed[j][j],
|
|
self_id->p0.phy_speed);
|
|
}
|
|
if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) &&
|
|
(self_id->p0.link_active && self_id->p0.contender))
|
|
fc->irm = self_id->p0.phy_id;
|
|
if (self_id->p0.port0 >= 0x2)
|
|
c_port++;
|
|
if (self_id->p0.port1 >= 0x2)
|
|
c_port++;
|
|
if (self_id->p0.port2 >= 0x2)
|
|
c_port++;
|
|
}
|
|
if (c_port > 2)
|
|
i_branch += (c_port - 2);
|
|
sid += 2;
|
|
self_id++;
|
|
fc->topology_map->self_id_count++;
|
|
}
|
|
/* CRC */
|
|
fc->topology_map->crc = fw_crc16(
|
|
(uint32_t *)&fc->topology_map->generation,
|
|
fc->topology_map->crc_len * 4);
|
|
fc->speed_map->crc = fw_crc16(
|
|
(uint32_t *)&fc->speed_map->generation,
|
|
fc->speed_map->crc_len * 4);
|
|
/* byteswap and copy to CSR */
|
|
p = (uint32_t *)fc->topology_map;
|
|
for (i = 0; i <= fc->topology_map->crc_len; i++)
|
|
CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++);
|
|
p = (uint32_t *)fc->speed_map;
|
|
CSRARC(fc, SPED_MAP) = htonl(*p++);
|
|
CSRARC(fc, SPED_MAP + 4) = htonl(*p++);
|
|
/* don't byte-swap uint8_t array */
|
|
bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1) * 4);
|
|
|
|
fc->max_hop = fc->max_node - i_branch;
|
|
device_printf(fc->bdev, "%d nodes, maxhop <= %d %s irm(%d) %s\n",
|
|
fc->max_node + 1, fc->max_hop,
|
|
(fc->irm == -1) ? "Not IRM capable" : "cable IRM",
|
|
fc->irm, (fc->irm == fc->nodeid) ? " (me) " : "");
|
|
|
|
if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) {
|
|
if (fc->irm == fc->nodeid) {
|
|
fc->status = FWBUSMGRDONE;
|
|
CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm);
|
|
fw_bmr(fc);
|
|
} else {
|
|
fc->status = FWBUSMGRELECT;
|
|
callout_reset(&fc->bmr_callout, hz / 8,
|
|
fw_try_bmr, fc);
|
|
}
|
|
} else
|
|
fc->status = FWBUSMGRDONE;
|
|
|
|
callout_reset(&fc->busprobe_callout, hz / 4, fw_bus_probe, fc);
|
|
}
|
|
|
|
/*
|
|
* To probe devices on the IEEE1394 bus.
|
|
*/
|
|
static void
|
|
fw_bus_probe(void *arg)
|
|
{
|
|
struct firewire_comm *fc;
|
|
struct fw_device *fwdev;
|
|
int s;
|
|
|
|
s = splfw();
|
|
fc = arg;
|
|
fc->status = FWBUSEXPLORE;
|
|
|
|
/* Invalidate all devices, just after bus reset. */
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s:"
|
|
"iterate and invalidate all nodes\n",
|
|
__func__);
|
|
STAILQ_FOREACH(fwdev, &fc->devices, link)
|
|
if (fwdev->status != FWDEVINVAL) {
|
|
fwdev->status = FWDEVINVAL;
|
|
fwdev->rcnt = 0;
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s:"
|
|
"Invalidate Dev ID: %08x%08x\n",
|
|
__func__, fwdev->eui.hi, fwdev->eui.lo);
|
|
} else {
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s:"
|
|
"Dev ID: %08x%08x already invalid\n",
|
|
__func__, fwdev->eui.hi, fwdev->eui.lo);
|
|
}
|
|
splx(s);
|
|
|
|
wakeup(fc);
|
|
}
|
|
|
|
static int
|
|
fw_explore_read_quads(struct fw_device *fwdev, int offset,
|
|
uint32_t *quad, int length)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
uint32_t tmp;
|
|
int i, error;
|
|
|
|
for (i = 0; i < length; i++, offset += sizeof(uint32_t)) {
|
|
xfer = fwmem_read_quad(fwdev, NULL, -1, 0xffff,
|
|
0xf0000000 | offset, &tmp, fw_xferwake);
|
|
if (xfer == NULL)
|
|
return (-1);
|
|
fw_xferwait(xfer);
|
|
|
|
if (xfer->resp == 0)
|
|
quad[i] = ntohl(tmp);
|
|
|
|
error = xfer->resp;
|
|
fw_xfer_free(xfer);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int
|
|
fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur)
|
|
{
|
|
int err, i, off;
|
|
struct csrdirectory *dir;
|
|
struct csrreg *reg;
|
|
|
|
dir = (struct csrdirectory *)&fwdev->csrrom[offset / sizeof(uint32_t)];
|
|
err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
|
|
(uint32_t *)dir, 1);
|
|
if (err)
|
|
return (-1);
|
|
|
|
offset += sizeof(uint32_t);
|
|
reg = (struct csrreg *)&fwdev->csrrom[offset / sizeof(uint32_t)];
|
|
err = fw_explore_read_quads(fwdev, CSRROMOFF + offset,
|
|
(uint32_t *)reg, dir->crc_len);
|
|
if (err)
|
|
return (-1);
|
|
|
|
/* XXX check CRC */
|
|
|
|
off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1);
|
|
if (fwdev->rommax < off)
|
|
fwdev->rommax = off;
|
|
|
|
if (recur == 0)
|
|
return (0);
|
|
|
|
for (i = 0; i < dir->crc_len; i++, offset += sizeof(uint32_t)) {
|
|
if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D)
|
|
recur = 1;
|
|
else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L)
|
|
recur = 0;
|
|
else
|
|
continue;
|
|
|
|
off = offset + reg[i].val * sizeof(uint32_t);
|
|
if (off > CROMSIZE) {
|
|
printf("%s: invalid offset %d\n", __FUNCTION__, off);
|
|
return (-1);
|
|
}
|
|
err = fw_explore_csrblock(fwdev, off, recur);
|
|
if (err)
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
fw_explore_node(struct fw_device *dfwdev)
|
|
{
|
|
struct firewire_comm *fc;
|
|
struct fw_device *fwdev, *pfwdev, *tfwdev;
|
|
uint32_t *csr;
|
|
struct csrhdr *hdr;
|
|
struct bus_info *binfo;
|
|
int err, node;
|
|
uint32_t speed_test = 0;
|
|
|
|
fc = dfwdev->fc;
|
|
csr = dfwdev->csrrom;
|
|
node = dfwdev->dst;
|
|
|
|
/* First quad */
|
|
err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1);
|
|
if (err) {
|
|
dfwdev->status = FWDEVINVAL;
|
|
return (-1);
|
|
}
|
|
hdr = (struct csrhdr *)&csr[0];
|
|
if (hdr->info_len != 4) {
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev,
|
|
"%s: node%d: wrong bus info len(%d)\n",
|
|
__func__, node, hdr->info_len);
|
|
dfwdev->status = FWDEVINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
/* bus info */
|
|
err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4);
|
|
if (err) {
|
|
dfwdev->status = FWDEVINVAL;
|
|
return (-1);
|
|
}
|
|
binfo = (struct bus_info *)&csr[1];
|
|
if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) {
|
|
dfwdev->status = FWDEVINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s: node(%d) BUS INFO BLOCK:\n"
|
|
"irmc(%d) cmc(%d) isc(%d) bmc(%d) pmc(%d) "
|
|
"cyc_clk_acc(%d) max_rec(%d) max_rom(%d) "
|
|
"generation(%d) link_spd(%d)\n",
|
|
__func__, node,
|
|
binfo->irmc, binfo->cmc, binfo->isc,
|
|
binfo->bmc, binfo->pmc, binfo->cyc_clk_acc,
|
|
binfo->max_rec, binfo->max_rom,
|
|
binfo->generation, binfo->link_spd);
|
|
|
|
STAILQ_FOREACH(fwdev, &fc->devices, link)
|
|
if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64))
|
|
break;
|
|
if (fwdev == NULL) {
|
|
/* new device */
|
|
fwdev = malloc(sizeof(struct fw_device), M_FW,
|
|
M_NOWAIT | M_ZERO);
|
|
if (fwdev == NULL) {
|
|
device_printf(fc->bdev, "%s: node%d: no memory\n",
|
|
__func__, node);
|
|
return (-1);
|
|
}
|
|
fwdev->fc = fc;
|
|
fwdev->eui = binfo->eui64;
|
|
fwdev->dst = dfwdev->dst;
|
|
fwdev->maxrec = dfwdev->maxrec;
|
|
fwdev->status = dfwdev->status;
|
|
|
|
/*
|
|
* Pre-1394a-2000 didn't have link_spd in
|
|
* the Bus Info block, so try and use the
|
|
* speed map value.
|
|
* 1394a-2000 compliant devices only use
|
|
* the Bus Info Block link spd value, so
|
|
* ignore the speed map altogether. SWB
|
|
*/
|
|
if (binfo->link_spd == FWSPD_S100 /* 0 */) {
|
|
device_printf(fc->bdev, "%s: "
|
|
"Pre 1394a-2000 detected\n", __func__);
|
|
fwdev->speed = fc->speed_map->speed[fc->nodeid][node];
|
|
} else
|
|
fwdev->speed = binfo->link_spd;
|
|
/*
|
|
* Test this speed with a read to the CSRROM.
|
|
* If it fails, slow down the speed and retry.
|
|
*/
|
|
while (fwdev->speed > FWSPD_S100 /* 0 */) {
|
|
err = fw_explore_read_quads(fwdev, CSRROMOFF,
|
|
&speed_test, 1);
|
|
if (err) {
|
|
device_printf(fc->bdev,
|
|
"%s: fwdev->speed(%s) decremented due to negotiation\n",
|
|
__func__, linkspeed[fwdev->speed]);
|
|
fwdev->speed--;
|
|
} else
|
|
break;
|
|
|
|
}
|
|
|
|
/*
|
|
* If the fwdev is not found in the
|
|
* fc->devices TAILQ, then we will add it.
|
|
*/
|
|
pfwdev = NULL;
|
|
STAILQ_FOREACH(tfwdev, &fc->devices, link) {
|
|
if (tfwdev->eui.hi > fwdev->eui.hi ||
|
|
(tfwdev->eui.hi == fwdev->eui.hi &&
|
|
tfwdev->eui.lo > fwdev->eui.lo))
|
|
break;
|
|
pfwdev = tfwdev;
|
|
}
|
|
if (pfwdev == NULL)
|
|
STAILQ_INSERT_HEAD(&fc->devices, fwdev, link);
|
|
else
|
|
STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link);
|
|
} else {
|
|
fwdev->dst = node;
|
|
fwdev->status = FWDEVINIT;
|
|
/* unchanged ? */
|
|
if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) {
|
|
if (firewire_debug)
|
|
device_printf(fc->dev,
|
|
"node%d: crom unchanged\n", node);
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
bzero(&fwdev->csrrom[0], CROMSIZE);
|
|
|
|
/* copy first quad and bus info block */
|
|
bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5);
|
|
fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4;
|
|
|
|
err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */
|
|
|
|
if (err) {
|
|
if (firewire_debug)
|
|
device_printf(fc->dev, "%s: explore csrblock failed err(%d)\n",
|
|
__func__, err);
|
|
fwdev->status = FWDEVINVAL;
|
|
fwdev->csrrom[0] = 0;
|
|
}
|
|
return (err);
|
|
|
|
}
|
|
|
|
/*
|
|
* Find the self_id packet for a node, ignoring sequels.
|
|
*/
|
|
static union fw_self_id *
|
|
fw_find_self_id(struct firewire_comm *fc, int node)
|
|
{
|
|
uint32_t i;
|
|
union fw_self_id *s;
|
|
|
|
for (i = 0; i < fc->topology_map->self_id_count; i++) {
|
|
s = &fc->topology_map->self_id[i];
|
|
if (s->p0.sequel)
|
|
continue;
|
|
if (s->p0.phy_id == node)
|
|
return s;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
fw_explore(struct firewire_comm *fc)
|
|
{
|
|
int node, err, s, i, todo, todo2, trys;
|
|
char nodes[63];
|
|
struct fw_device dfwdev;
|
|
union fw_self_id *fwsid;
|
|
|
|
todo = 0;
|
|
/* setup dummy fwdev */
|
|
dfwdev.fc = fc;
|
|
dfwdev.speed = 0;
|
|
dfwdev.maxrec = 8; /* 512 */
|
|
dfwdev.status = FWDEVINIT;
|
|
|
|
for (node = 0; node <= fc->max_node; node++) {
|
|
/* We don't probe myself and linkdown nodes */
|
|
if (node == fc->nodeid) {
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s:"
|
|
"found myself node(%d) fc->nodeid(%d) fc->max_node(%d)\n",
|
|
__func__, node, fc->nodeid, fc->max_node);
|
|
continue;
|
|
} else if (firewire_debug) {
|
|
device_printf(fc->bdev, "%s:"
|
|
"node(%d) fc->max_node(%d) found\n",
|
|
__func__, node, fc->max_node);
|
|
}
|
|
fwsid = fw_find_self_id(fc, node);
|
|
if (!fwsid || !fwsid->p0.link_active) {
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev,
|
|
"%s: node%d: link down\n",
|
|
__func__, node);
|
|
continue;
|
|
}
|
|
nodes[todo++] = node;
|
|
}
|
|
|
|
s = splfw();
|
|
for (trys = 0; todo > 0 && trys < 3; trys++) {
|
|
todo2 = 0;
|
|
for (i = 0; i < todo; i++) {
|
|
dfwdev.dst = nodes[i];
|
|
err = fw_explore_node(&dfwdev);
|
|
if (err)
|
|
nodes[todo2++] = nodes[i];
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev,
|
|
"%s: node %d, err = %d\n",
|
|
__func__, node, err);
|
|
}
|
|
todo = todo2;
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
static void
|
|
fw_bus_probe_thread(void *arg)
|
|
{
|
|
struct firewire_comm *fc;
|
|
|
|
fc = arg;
|
|
|
|
mtx_lock(&fc->wait_lock);
|
|
while (fc->status != FWBUSDETACH) {
|
|
if (fc->status == FWBUSEXPLORE) {
|
|
mtx_unlock(&fc->wait_lock);
|
|
fw_explore(fc);
|
|
fc->status = FWBUSEXPDONE;
|
|
if (firewire_debug)
|
|
printf("bus_explore done\n");
|
|
fw_attach_dev(fc);
|
|
mtx_lock(&fc->wait_lock);
|
|
}
|
|
msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0);
|
|
}
|
|
mtx_unlock(&fc->wait_lock);
|
|
kproc_exit(0);
|
|
}
|
|
|
|
/*
|
|
* To attach sub-devices layer onto IEEE1394 bus.
|
|
*/
|
|
static void
|
|
fw_attach_dev(struct firewire_comm *fc)
|
|
{
|
|
struct fw_device *fwdev, *next;
|
|
int i, err;
|
|
device_t *devlistp;
|
|
int devcnt;
|
|
struct firewire_dev_comm *fdc;
|
|
|
|
for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) {
|
|
next = STAILQ_NEXT(fwdev, link);
|
|
if (fwdev->status == FWDEVINIT) {
|
|
fwdev->status = FWDEVATTACHED;
|
|
} else if (fwdev->status == FWDEVINVAL) {
|
|
fwdev->rcnt++;
|
|
if (firewire_debug)
|
|
device_printf(fc->bdev, "%s:"
|
|
"fwdev->rcnt(%d), hold_count(%d)\n",
|
|
__func__, fwdev->rcnt, hold_count);
|
|
if (fwdev->rcnt > hold_count) {
|
|
/*
|
|
* Remove devices which have not been seen
|
|
* for a while.
|
|
*/
|
|
STAILQ_REMOVE(&fc->devices, fwdev, fw_device,
|
|
link);
|
|
free(fwdev, M_FW);
|
|
}
|
|
}
|
|
}
|
|
|
|
err = device_get_children(fc->bdev, &devlistp, &devcnt);
|
|
if (err == 0) {
|
|
for (i = 0; i < devcnt; i++) {
|
|
if (device_get_state(devlistp[i]) >= DS_ATTACHED) {
|
|
fdc = device_get_softc(devlistp[i]);
|
|
if (fdc->post_explore != NULL)
|
|
fdc->post_explore(fdc);
|
|
}
|
|
}
|
|
free(devlistp, M_TEMP);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* To allocate unique transaction label.
|
|
*/
|
|
static int
|
|
fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer)
|
|
{
|
|
u_int dst, new_tlabel;
|
|
struct fw_xfer *txfer;
|
|
int s;
|
|
|
|
dst = xfer->send.hdr.mode.hdr.dst & 0x3f;
|
|
s = splfw();
|
|
mtx_lock(&fc->tlabel_lock);
|
|
new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f;
|
|
STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel)
|
|
if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst)
|
|
break;
|
|
if (txfer == NULL) {
|
|
fc->last_tlabel[dst] = new_tlabel;
|
|
STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel);
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
splx(s);
|
|
xfer->tl = new_tlabel;
|
|
xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2;
|
|
if (firewire_debug > 1)
|
|
printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel);
|
|
return (new_tlabel);
|
|
}
|
|
mtx_unlock(&fc->tlabel_lock);
|
|
splx(s);
|
|
|
|
if (firewire_debug > 1)
|
|
printf("fw_get_tlabel: no free tlabel\n");
|
|
return (-1);
|
|
}
|
|
|
|
static void
|
|
fw_rcv_copy(struct fw_rcv_buf *rb)
|
|
{
|
|
struct fw_pkt *pkt;
|
|
u_char *p;
|
|
struct tcode_info *tinfo;
|
|
u_int res, i, len, plen;
|
|
|
|
rb->xfer->recv.spd = rb->spd;
|
|
|
|
pkt = (struct fw_pkt *)rb->vec->iov_base;
|
|
tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode];
|
|
|
|
/* Copy header */
|
|
p = (u_char *)&rb->xfer->recv.hdr;
|
|
bcopy(rb->vec->iov_base, p, tinfo->hdr_len);
|
|
rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len;
|
|
rb->vec->iov_len -= tinfo->hdr_len;
|
|
|
|
/* Copy payload */
|
|
p = (u_char *)rb->xfer->recv.payload;
|
|
res = rb->xfer->recv.pay_len;
|
|
|
|
/* special handling for RRESQ */
|
|
if (pkt->mode.hdr.tcode == FWTCODE_RRESQ &&
|
|
p != NULL && res >= sizeof(uint32_t)) {
|
|
*(uint32_t *)p = pkt->mode.rresq.data;
|
|
rb->xfer->recv.pay_len = sizeof(uint32_t);
|
|
return;
|
|
}
|
|
|
|
if ((tinfo->flag & FWTI_BLOCK_ASY) == 0)
|
|
return;
|
|
|
|
plen = pkt->mode.rresb.len;
|
|
|
|
for (i = 0; i < rb->nvec; i++, rb->vec++) {
|
|
len = MIN(rb->vec->iov_len, plen);
|
|
if (res < len) {
|
|
device_printf(rb->fc->bdev, "%s:"
|
|
" rcv buffer(%d) is %d bytes short.\n",
|
|
__func__, rb->xfer->recv.pay_len, len - res);
|
|
len = res;
|
|
}
|
|
bcopy(rb->vec->iov_base, p, len);
|
|
p += len;
|
|
res -= len;
|
|
plen -= len;
|
|
if (res == 0 || plen == 0)
|
|
break;
|
|
}
|
|
rb->xfer->recv.pay_len -= res;
|
|
}
|
|
|
|
/*
|
|
* Generic packet receiving process.
|
|
*/
|
|
void
|
|
fw_rcv(struct fw_rcv_buf *rb)
|
|
{
|
|
struct fw_pkt *fp, *resfp;
|
|
struct fw_bind *bind;
|
|
int tcode;
|
|
int oldstate;
|
|
#if 0
|
|
int i, len;
|
|
{
|
|
uint32_t *qld;
|
|
int i;
|
|
qld = (uint32_t *)buf;
|
|
printf("spd %d len:%d\n", spd, len);
|
|
for (i = 0; i <= len && i < 32; i+= 4) {
|
|
printf("0x%08x ", ntohl(qld[i/4]));
|
|
if ((i % 16) == 15) printf("\n");
|
|
}
|
|
if ((i % 16) != 15) printf("\n");
|
|
}
|
|
#endif
|
|
fp = (struct fw_pkt *)rb->vec[0].iov_base;
|
|
tcode = fp->mode.common.tcode;
|
|
switch (tcode) {
|
|
case FWTCODE_WRES:
|
|
case FWTCODE_RRESQ:
|
|
case FWTCODE_RRESB:
|
|
case FWTCODE_LRES:
|
|
rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
|
|
fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode);
|
|
if (rb->xfer == NULL) {
|
|
device_printf(rb->fc->bdev, "%s: unknown response "
|
|
"%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n",
|
|
__func__,
|
|
tcode_str[tcode], tcode,
|
|
fp->mode.hdr.src,
|
|
fp->mode.hdr.tlrt >> 2,
|
|
fp->mode.hdr.tlrt & 3,
|
|
fp->mode.rresq.data);
|
|
#if 0
|
|
printf("try ad-hoc work around!!\n");
|
|
rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src,
|
|
(fp->mode.hdr.tlrt >> 2)^3);
|
|
if (rb->xfer == NULL) {
|
|
printf("no use...\n");
|
|
return;
|
|
}
|
|
#else
|
|
return;
|
|
#endif
|
|
}
|
|
fw_rcv_copy(rb);
|
|
if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP)
|
|
rb->xfer->resp = EIO;
|
|
else
|
|
rb->xfer->resp = 0;
|
|
/* make sure the packet is drained in AT queue */
|
|
oldstate = rb->xfer->flag;
|
|
rb->xfer->flag = FWXF_RCVD;
|
|
switch (oldstate) {
|
|
case FWXF_SENT:
|
|
fw_xfer_done(rb->xfer);
|
|
break;
|
|
case FWXF_START:
|
|
#if 0
|
|
if (firewire_debug)
|
|
printf("not sent yet tl=%x\n", rb->xfer->tl);
|
|
#endif
|
|
break;
|
|
default:
|
|
device_printf(rb->fc->bdev, "%s: "
|
|
"unexpected flag 0x%02x\n", __func__,
|
|
rb->xfer->flag);
|
|
}
|
|
return;
|
|
case FWTCODE_WREQQ:
|
|
case FWTCODE_WREQB:
|
|
case FWTCODE_RREQQ:
|
|
case FWTCODE_RREQB:
|
|
case FWTCODE_LREQ:
|
|
bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi,
|
|
fp->mode.rreqq.dest_lo);
|
|
if (bind == NULL) {
|
|
device_printf(rb->fc->bdev, "%s: "
|
|
"Unknown service addr 0x%04x:0x%08x %s(%x)"
|
|
" src=0x%x data=%x\n",
|
|
__func__,
|
|
fp->mode.wreqq.dest_hi,
|
|
fp->mode.wreqq.dest_lo,
|
|
tcode_str[tcode], tcode,
|
|
fp->mode.hdr.src,
|
|
ntohl(fp->mode.wreqq.data));
|
|
|
|
if (rb->fc->status == FWBUSINIT) {
|
|
device_printf(rb->fc->bdev,
|
|
"%s: cannot respond(bus reset)!\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
rb->xfer = fw_xfer_alloc(M_FWXFER);
|
|
if (rb->xfer == NULL) {
|
|
return;
|
|
}
|
|
rb->xfer->send.spd = rb->spd;
|
|
rb->xfer->send.pay_len = 0;
|
|
resfp = &rb->xfer->send.hdr;
|
|
switch (tcode) {
|
|
case FWTCODE_WREQQ:
|
|
case FWTCODE_WREQB:
|
|
resfp->mode.hdr.tcode = FWTCODE_WRES;
|
|
break;
|
|
case FWTCODE_RREQQ:
|
|
resfp->mode.hdr.tcode = FWTCODE_RRESQ;
|
|
break;
|
|
case FWTCODE_RREQB:
|
|
resfp->mode.hdr.tcode = FWTCODE_RRESB;
|
|
break;
|
|
case FWTCODE_LREQ:
|
|
resfp->mode.hdr.tcode = FWTCODE_LRES;
|
|
break;
|
|
}
|
|
resfp->mode.hdr.dst = fp->mode.hdr.src;
|
|
resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt;
|
|
resfp->mode.hdr.pri = fp->mode.hdr.pri;
|
|
resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR;
|
|
resfp->mode.rresb.extcode = 0;
|
|
resfp->mode.rresb.len = 0;
|
|
/*
|
|
rb->xfer->hand = fw_xferwake;
|
|
*/
|
|
rb->xfer->hand = fw_xfer_free;
|
|
if (fw_asyreq(rb->fc, -1, rb->xfer))
|
|
fw_xfer_free(rb->xfer);
|
|
return;
|
|
}
|
|
#if 0
|
|
len = 0;
|
|
for (i = 0; i < rb->nvec; i++)
|
|
len += rb->vec[i].iov_len;
|
|
#endif
|
|
rb->xfer = STAILQ_FIRST(&bind->xferlist);
|
|
if (rb->xfer == NULL) {
|
|
device_printf(rb->fc->bdev, "%s: "
|
|
"Discard a packet for this bind.\n", __func__);
|
|
return;
|
|
}
|
|
STAILQ_REMOVE_HEAD(&bind->xferlist, link);
|
|
fw_rcv_copy(rb);
|
|
rb->xfer->hand(rb->xfer);
|
|
return;
|
|
#if 0 /* shouldn't happen ?? or for GASP */
|
|
case FWTCODE_STREAM:
|
|
{
|
|
struct fw_xferq *xferq;
|
|
|
|
xferq = rb->fc->ir[sub];
|
|
#if 0
|
|
printf("stream rcv dma %d len %d off %d spd %d\n",
|
|
sub, len, off, spd);
|
|
#endif
|
|
if (xferq->queued >= xferq->maxq) {
|
|
printf("receive queue is full\n");
|
|
return;
|
|
}
|
|
/* XXX get xfer from xfer queue, we don't need copy for
|
|
per packet mode */
|
|
rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */
|
|
vec[0].iov_len);
|
|
if (rb->xfer == NULL)
|
|
return;
|
|
fw_rcv_copy(rb)
|
|
s = splfw();
|
|
xferq->queued++;
|
|
STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link);
|
|
splx(s);
|
|
sc = device_get_softc(rb->fc->bdev);
|
|
if (SEL_WAITING(&xferq->rsel))
|
|
selwakeuppri(&xferq->rsel, FWPRI);
|
|
if (xferq->flag & FWXFERQ_WAKEUP) {
|
|
xferq->flag &= ~FWXFERQ_WAKEUP;
|
|
wakeup((caddr_t)xferq);
|
|
}
|
|
if (xferq->flag & FWXFERQ_HANDLER) {
|
|
xferq->hand(xferq);
|
|
}
|
|
return;
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
device_printf(rb->fc->bdev,"%s: unknown tcode %d\n",
|
|
__func__, tcode);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Post process for Bus Manager election process.
|
|
*/
|
|
static void
|
|
fw_try_bmr_callback(struct fw_xfer *xfer)
|
|
{
|
|
struct firewire_comm *fc;
|
|
int bmr;
|
|
|
|
if (xfer == NULL)
|
|
return;
|
|
fc = xfer->fc;
|
|
if (xfer->resp != 0)
|
|
goto error;
|
|
if (xfer->recv.payload == NULL)
|
|
goto error;
|
|
if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE)
|
|
goto error;
|
|
|
|
bmr = ntohl(xfer->recv.payload[0]);
|
|
if (bmr == 0x3f)
|
|
bmr = fc->nodeid;
|
|
|
|
CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f);
|
|
fw_xfer_free_buf(xfer);
|
|
fw_bmr(fc);
|
|
return;
|
|
|
|
error:
|
|
device_printf(fc->bdev, "bus manager election failed\n");
|
|
fw_xfer_free_buf(xfer);
|
|
}
|
|
|
|
|
|
/*
|
|
* To candidate Bus Manager election process.
|
|
*/
|
|
static void
|
|
fw_try_bmr(void *arg)
|
|
{
|
|
struct fw_xfer *xfer;
|
|
struct firewire_comm *fc = arg;
|
|
struct fw_pkt *fp;
|
|
int err = 0;
|
|
|
|
xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
|
|
if (xfer == NULL)
|
|
return;
|
|
xfer->send.spd = 0;
|
|
fc->status = FWBUSMGRELECT;
|
|
|
|
fp = &xfer->send.hdr;
|
|
fp->mode.lreq.dest_hi = 0xffff;
|
|
fp->mode.lreq.tlrt = 0;
|
|
fp->mode.lreq.tcode = FWTCODE_LREQ;
|
|
fp->mode.lreq.pri = 0;
|
|
fp->mode.lreq.src = 0;
|
|
fp->mode.lreq.len = 8;
|
|
fp->mode.lreq.extcode = EXTCODE_CMP_SWAP;
|
|
fp->mode.lreq.dst = FWLOCALBUS | fc->irm;
|
|
fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID;
|
|
xfer->send.payload[0] = htonl(0x3f);
|
|
xfer->send.payload[1] = htonl(fc->nodeid);
|
|
xfer->hand = fw_try_bmr_callback;
|
|
|
|
err = fw_asyreq(fc, -1, xfer);
|
|
if (err) {
|
|
fw_xfer_free_buf(xfer);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
#ifdef FW_VMACCESS
|
|
/*
|
|
* Software implementation for physical memory block access.
|
|
* XXX:Too slow, useful for debug purpose only.
|
|
*/
|
|
static void
|
|
fw_vmaccess(struct fw_xfer *xfer)
|
|
{
|
|
struct fw_pkt *rfp, *sfp = NULL;
|
|
uint32_t *ld = (uint32_t *)xfer->recv.buf;
|
|
|
|
printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n",
|
|
xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]),
|
|
ntohl(ld[3]));
|
|
printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]),
|
|
ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
|
|
if (xfer->resp != 0) {
|
|
fw_xfer_free(xfer);
|
|
return;
|
|
}
|
|
if (xfer->recv.buf == NULL) {
|
|
fw_xfer_free(xfer);
|
|
return;
|
|
}
|
|
rfp = (struct fw_pkt *)xfer->recv.buf;
|
|
switch (rfp->mode.hdr.tcode) {
|
|
/* XXX need fix for 64bit arch */
|
|
case FWTCODE_WREQB:
|
|
xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
|
|
xfer->send.len = 12;
|
|
sfp = (struct fw_pkt *)xfer->send.buf;
|
|
bcopy(rfp->mode.wreqb.payload,
|
|
(caddr_t)ntohl(rfp->mode.wreqb.dest_lo),s
|
|
ntohs(rfp->mode.wreqb.len));
|
|
sfp->mode.wres.tcode = FWTCODE_WRES;
|
|
sfp->mode.wres.rtcode = 0;
|
|
break;
|
|
case FWTCODE_WREQQ:
|
|
xfer->send.buf = malloc(12, M_FW, M_NOWAIT);
|
|
xfer->send.len = 12;
|
|
sfp->mode.wres.tcode = FWTCODE_WRES;
|
|
*((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) =
|
|
rfp->mode.wreqq.data;
|
|
sfp->mode.wres.rtcode = 0;
|
|
break;
|
|
case FWTCODE_RREQB:
|
|
xfer->send.buf = malloc(16 + rfp->mode.rreqb.len,
|
|
M_FW, M_NOWAIT);
|
|
xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len);
|
|
sfp = (struct fw_pkt *)xfer->send.buf;
|
|
bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo),
|
|
sfp->mode.rresb.payload,
|
|
ntohs(rfp->mode.rreqb.len));
|
|
sfp->mode.rresb.tcode = FWTCODE_RRESB;
|
|
sfp->mode.rresb.len = rfp->mode.rreqb.len;
|
|
sfp->mode.rresb.rtcode = 0;
|
|
sfp->mode.rresb.extcode = 0;
|
|
break;
|
|
case FWTCODE_RREQQ:
|
|
xfer->send.buf = malloc(16, M_FW, M_NOWAIT);
|
|
xfer->send.len = 16;
|
|
sfp = (struct fw_pkt *)xfer->send.buf;
|
|
sfp->mode.rresq.data =
|
|
*(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo));
|
|
sfp->mode.wres.tcode = FWTCODE_RRESQ;
|
|
sfp->mode.rresb.rtcode = 0;
|
|
break;
|
|
default:
|
|
fw_xfer_free(xfer);
|
|
return;
|
|
}
|
|
sfp->mode.hdr.dst = rfp->mode.hdr.src;
|
|
xfer->dst = ntohs(rfp->mode.hdr.src);
|
|
xfer->hand = fw_xfer_free;
|
|
|
|
sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt;
|
|
sfp->mode.hdr.pri = 0;
|
|
|
|
fw_asyreq(xfer->fc, -1, xfer);
|
|
/**/
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* CRC16 check-sum for IEEE1394 register blocks.
|
|
*/
|
|
uint16_t
|
|
fw_crc16(uint32_t *ptr, uint32_t len)
|
|
{
|
|
uint32_t i, sum, crc = 0;
|
|
int shift;
|
|
len = (len + 3) & ~3;
|
|
for (i = 0; i < len; i += 4) {
|
|
for (shift = 28; shift >= 0; shift -= 4) {
|
|
sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf;
|
|
crc = (crc << 4) ^ (sum << 12) ^ (sum << 5) ^ sum;
|
|
}
|
|
crc &= 0xffff;
|
|
}
|
|
return ((uint16_t) crc);
|
|
}
|
|
|
|
/*
|
|
* Find the root node, if it is not
|
|
* Cycle Master Capable, then we should
|
|
* override this and become the Cycle
|
|
* Master
|
|
*/
|
|
static int
|
|
fw_bmr(struct firewire_comm *fc)
|
|
{
|
|
struct fw_device fwdev;
|
|
union fw_self_id *self_id;
|
|
int cmstr;
|
|
uint32_t quad;
|
|
|
|
/* Check to see if the current root node is cycle master capable */
|
|
self_id = fw_find_self_id(fc, fc->max_node);
|
|
if (fc->max_node > 0) {
|
|
/* XXX check cmc bit of businfo block rather than contender */
|
|
if (self_id->p0.link_active && self_id->p0.contender)
|
|
cmstr = fc->max_node;
|
|
else {
|
|
device_printf(fc->bdev,
|
|
"root node is not cycle master capable\n");
|
|
/* XXX shall we be the cycle master? */
|
|
cmstr = fc->nodeid;
|
|
/* XXX need bus reset */
|
|
}
|
|
} else
|
|
cmstr = -1;
|
|
|
|
device_printf(fc->bdev, "bus manager %d %s\n",
|
|
CSRARC(fc, BUS_MGR_ID),
|
|
(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) ? "(me)" : "");
|
|
if (CSRARC(fc, BUS_MGR_ID) != fc->nodeid) {
|
|
/* We are not the bus manager */
|
|
return (0);
|
|
}
|
|
|
|
/* Optimize gapcount */
|
|
if (fc->max_hop <= MAX_GAPHOP)
|
|
fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]);
|
|
/* If we are the cycle master, nothing to do */
|
|
if (cmstr == fc->nodeid || cmstr == -1)
|
|
return 0;
|
|
/* Bus probe has not finished, make dummy fwdev for cmstr */
|
|
bzero(&fwdev, sizeof(fwdev));
|
|
fwdev.fc = fc;
|
|
fwdev.dst = cmstr;
|
|
fwdev.speed = 0;
|
|
fwdev.maxrec = 8; /* 512 */
|
|
fwdev.status = FWDEVINIT;
|
|
/* Set cmstr bit on the cycle master */
|
|
quad = htonl(1 << 8);
|
|
fwmem_write_quad(&fwdev, NULL, 0/*spd*/,
|
|
0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
fw_open_isodma(struct firewire_comm *fc, int tx)
|
|
{
|
|
struct fw_xferq **xferqa;
|
|
struct fw_xferq *xferq;
|
|
int i;
|
|
|
|
if (tx)
|
|
xferqa = &fc->it[0];
|
|
else
|
|
xferqa = &fc->ir[0];
|
|
|
|
FW_GLOCK(fc);
|
|
for (i = 0; i < fc->nisodma; i++) {
|
|
xferq = xferqa[i];
|
|
if ((xferq->flag & FWXFERQ_OPEN) == 0) {
|
|
xferq->flag |= FWXFERQ_OPEN;
|
|
break;
|
|
}
|
|
}
|
|
if (i == fc->nisodma) {
|
|
printf("no free dma channel (tx=%d)\n", tx);
|
|
i = -1;
|
|
}
|
|
FW_GUNLOCK(fc);
|
|
return (i);
|
|
}
|
|
|
|
static int
|
|
fw_modevent(module_t mode, int type, void *data)
|
|
{
|
|
int err = 0;
|
|
static eventhandler_tag fwdev_ehtag = NULL;
|
|
|
|
switch (type) {
|
|
case MOD_LOAD:
|
|
firewire_devclass = devclass_create("firewire");
|
|
fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone,
|
|
fwdev_clone, 0, 1000);
|
|
break;
|
|
case MOD_UNLOAD:
|
|
if (fwdev_ehtag != NULL)
|
|
EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag);
|
|
break;
|
|
case MOD_SHUTDOWN:
|
|
break;
|
|
default:
|
|
return (EOPNOTSUPP);
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
|
|
DRIVER_MODULE(firewire, fwohci, firewire_driver, fw_modevent, NULL);
|
|
MODULE_VERSION(firewire, 1);
|