firewire.c revision 172836
1139749Simp/*- 2117632Sharti * Copyright (c) 2003 Hidetoshi Shimokawa 3117632Sharti * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4117632Sharti * All rights reserved. 5117632Sharti * 6117632Sharti * Redistribution and use in source and binary forms, with or without 7117632Sharti * modification, are permitted provided that the following conditions 8117632Sharti * are met: 9117632Sharti * 1. Redistributions of source code must retain the above copyright 10117632Sharti * notice, this list of conditions and the following disclaimer. 11117632Sharti * 2. Redistributions in binary form must reproduce the above copyright 12117632Sharti * notice, this list of conditions and the following disclaimer in the 13117632Sharti * documentation and/or other materials provided with the distribution. 14117632Sharti * 3. All advertising materials mentioning features or use of this software 15117632Sharti * must display the acknowledgement as bellow: 16117632Sharti * 17117632Sharti * This product includes software developed by K. Kobayashi and H. Shimokawa 18117632Sharti * 19117632Sharti * 4. The name of the author may not be used to endorse or promote products 20117632Sharti * derived from this software without specific prior written permission. 21117632Sharti * 22117632Sharti * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23117632Sharti * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24117632Sharti * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25117632Sharti * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26117632Sharti * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27117632Sharti * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28117632Sharti * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29117632Sharti * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30117632Sharti * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31117632Sharti * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32117632Sharti * POSSIBILITY OF SUCH DAMAGE. 33117632Sharti * 34117632Sharti * $FreeBSD: head/sys/dev/firewire/firewire.c 172836 2007-10-20 23:23:23Z julian $ 35117632Sharti * 36117632Sharti */ 37117632Sharti 38117632Sharti#include <sys/param.h> 39119418Sobrien#include <sys/systm.h> 40117632Sharti#include <sys/types.h> 41117632Sharti 42117632Sharti#include <sys/kernel.h> 43117632Sharti#include <sys/module.h> 44117632Sharti#include <sys/malloc.h> 45117632Sharti#include <sys/conf.h> 46117632Sharti#include <sys/sysctl.h> 47117632Sharti#include <sys/kthread.h> 48117632Sharti 49117632Sharti#include <sys/kdb.h> 50117632Sharti 51117632Sharti#if defined(__DragonFly__) || __FreeBSD_version < 500000 52117632Sharti#include <machine/clock.h> /* for DELAY() */ 53117632Sharti#endif 54117632Sharti 55117632Sharti#include <sys/bus.h> /* used by smbus and newbus */ 56117632Sharti#include <machine/bus.h> 57117632Sharti 58117632Sharti#ifdef __DragonFly__ 59117632Sharti#include "firewire.h" 60117632Sharti#include "firewirereg.h" 61117632Sharti#include "fwmem.h" 62117632Sharti#include "iec13213.h" 63117632Sharti#include "iec68113.h" 64117632Sharti#else 65117632Sharti#include <dev/firewire/firewire.h> 66117632Sharti#include <dev/firewire/firewirereg.h> 67117632Sharti#include <dev/firewire/fwmem.h> 68117632Sharti#include <dev/firewire/iec13213.h> 69117632Sharti#include <dev/firewire/iec68113.h> 70117632Sharti#endif 71117632Sharti 72117632Shartistruct crom_src_buf { 73117632Sharti struct crom_src src; 74117632Sharti struct crom_chunk root; 75117632Sharti struct crom_chunk vendor; 76117632Sharti struct crom_chunk hw; 77117632Sharti}; 78117632Sharti 79117632Shartiint firewire_debug=0, try_bmr=1, hold_count=3; 80117632ShartiSYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 81117632Sharti "FireWire driver debug flag"); 82117632ShartiSYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 83117632ShartiSYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 84117632Sharti "Try to be a bus manager"); 85117632ShartiSYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 86117632Sharti "Number of count of bus resets for removing lost device information"); 87117632Sharti 88117632ShartiMALLOC_DEFINE(M_FW, "firewire", "FireWire"); 89117632ShartiMALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 90117632Sharti 91117632Sharti#define FW_MAXASYRTY 4 92117632Sharti 93117632Shartidevclass_t firewire_devclass; 94117632Sharti 95117632Shartistatic void firewire_identify (driver_t *, device_t); 96117632Shartistatic int firewire_probe (device_t); 97117632Shartistatic int firewire_attach (device_t); 98117632Shartistatic int firewire_detach (device_t); 99117632Shartistatic int firewire_resume (device_t); 100117632Shartistatic void firewire_xfer_timeout(void *, int); 101117632Sharti#if 0 102117632Shartistatic int firewire_shutdown (device_t); 103117632Sharti#endif 104117632Shartistatic device_t firewire_add_child (device_t, int, const char *, int); 105117632Shartistatic void fw_try_bmr (void *); 106117632Shartistatic void fw_try_bmr_callback (struct fw_xfer *); 107117632Shartistatic void fw_asystart (struct fw_xfer *); 108117632Shartistatic int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 109117632Shartistatic void fw_bus_probe (struct firewire_comm *); 110117632Shartistatic void fw_attach_dev (struct firewire_comm *); 111117632Shartistatic void fw_bus_probe_thread(void *); 112117632Sharti#ifdef FW_VMACCESS 113117632Shartistatic void fw_vmaccess (struct fw_xfer *); 114117632Sharti#endif 115117632Shartistatic int fw_bmr (struct firewire_comm *); 116117632Shartistatic void fw_dump_hdr(struct fw_pkt *, char *); 117117632Sharti 118117632Shartistatic device_method_t firewire_methods[] = { 119117632Sharti /* Device interface */ 120117632Sharti DEVMETHOD(device_identify, firewire_identify), 121117632Sharti DEVMETHOD(device_probe, firewire_probe), 122147256Sbrooks DEVMETHOD(device_attach, firewire_attach), 123117632Sharti DEVMETHOD(device_detach, firewire_detach), 124117632Sharti DEVMETHOD(device_suspend, bus_generic_suspend), 125117632Sharti DEVMETHOD(device_resume, firewire_resume), 126117632Sharti DEVMETHOD(device_shutdown, bus_generic_shutdown), 127117632Sharti 128147256Sbrooks /* Bus interface */ 129117632Sharti DEVMETHOD(bus_add_child, firewire_add_child), 130117632Sharti DEVMETHOD(bus_print_child, bus_generic_print_child), 131117632Sharti 132117632Sharti { 0, 0 } 133117632Sharti}; 134117632Shartichar *linkspeed[] = { 135117632Sharti "S100", "S200", "S400", "S800", 136117632Sharti "S1600", "S3200", "undef", "undef" 137117632Sharti}; 138117632Sharti 139117632Shartistatic char *tcode_str[] = { 140117632Sharti "WREQQ", "WREQB", "WRES", "undef", 141117632Sharti "RREQQ", "RREQB", "RRESQ", "RRESB", 142117632Sharti "CYCS", "LREQ", "STREAM", "LRES", 143117632Sharti "undef", "undef", "PHY", "undef" 144117632Sharti}; 145117632Sharti 146117632Sharti/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 147117632Sharti#define MAX_GAPHOP 15 148117632Shartiu_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 149117632Sharti 21, 24, 26, 29, 32, 35, 37, 40}; 150117632Sharti 151117632Shartistatic driver_t firewire_driver = { 152147256Sbrooks "firewire", 153117632Sharti firewire_methods, 154117632Sharti sizeof(struct firewire_softc), 155117632Sharti}; 156117632Sharti 157117632Sharti/* 158117632Sharti * Lookup fwdev by node id. 159117632Sharti */ 160117632Shartistruct fw_device * 161117632Shartifw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 162117632Sharti{ 163117632Sharti struct fw_device *fwdev; 164147256Sbrooks int s; 165117632Sharti 166117632Sharti s = splfw(); 167117632Sharti STAILQ_FOREACH(fwdev, &fc->devices, link) 168117632Sharti if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 169117632Sharti break; 170117632Sharti splx(s); 171117632Sharti 172117632Sharti return fwdev; 173117632Sharti} 174117632Sharti 175117632Sharti/* 176117632Sharti * Lookup fwdev by EUI64. 177117632Sharti */ 178117632Shartistruct fw_device * 179117632Shartifw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 180117632Sharti{ 181117632Sharti struct fw_device *fwdev; 182117632Sharti int s; 183117632Sharti 184117632Sharti s = splfw(); 185117632Sharti FW_GLOCK(fc); 186117632Sharti STAILQ_FOREACH(fwdev, &fc->devices, link) 187117632Sharti if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 188117632Sharti break; 189117632Sharti FW_GUNLOCK(fc); 190117632Sharti splx(s); 191117632Sharti 192117632Sharti if(fwdev == NULL) return NULL; 193117632Sharti if(fwdev->status == FWDEVINVAL) return NULL; 194117632Sharti return fwdev; 195117632Sharti} 196117632Sharti 197117632Sharti/* 198117632Sharti * Async. request procedure for userland application. 199117632Sharti */ 200117632Shartiint 201117632Shartifw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 202117632Sharti{ 203117632Sharti int err = 0; 204117632Sharti struct fw_xferq *xferq; 205117632Sharti int len; 206117632Sharti struct fw_pkt *fp; 207117632Sharti int tcode; 208117632Sharti struct tcode_info *info; 209117632Sharti 210117632Sharti if(xfer == NULL) return EINVAL; 211117632Sharti if(xfer->hand == NULL){ 212117632Sharti printf("hand == NULL\n"); 213117632Sharti return EINVAL; 214117632Sharti } 215117632Sharti fp = &xfer->send.hdr; 216117632Sharti 217117632Sharti tcode = fp->mode.common.tcode & 0xf; 218117632Sharti info = &fc->tcode[tcode]; 219117632Sharti if (info->flag == 0) { 220117632Sharti printf("invalid tcode=%x\n", tcode); 221117632Sharti return EINVAL; 222117632Sharti } 223117632Sharti 224117632Sharti /* XXX allow bus explore packets only after bus rest */ 225117632Sharti if ((fc->status < FWBUSEXPLORE) && 226117632Sharti ((tcode != FWTCODE_RREQQ) || (fp->mode.rreqq.dest_hi != 0xffff) || 227117632Sharti (fp->mode.rreqq.dest_lo < 0xf0000000) || 228117632Sharti (fp->mode.rreqq.dest_lo >= 0xf0001000))) { 229117632Sharti xfer->resp = EAGAIN; 230117632Sharti xfer->flag = FWXF_BUSY; 231117632Sharti return (EAGAIN); 232117632Sharti } 233117632Sharti 234117632Sharti if (info->flag & FWTI_REQ) 235117632Sharti xferq = fc->atq; 236117632Sharti else 237117632Sharti xferq = fc->ats; 238117632Sharti len = info->hdr_len; 239117632Sharti if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 240117632Sharti printf("send.pay_len > maxrec\n"); 241117632Sharti return EINVAL; 242117632Sharti } 243117632Sharti if (info->flag & FWTI_BLOCK_STR) 244117632Sharti len = fp->mode.stream.len; 245117632Sharti else if (info->flag & FWTI_BLOCK_ASY) 246117632Sharti len = fp->mode.rresb.len; 247117632Sharti else 248117632Sharti len = 0; 249117632Sharti if (len != xfer->send.pay_len){ 250117632Sharti printf("len(%d) != send.pay_len(%d) %s(%x)\n", 251117632Sharti len, xfer->send.pay_len, tcode_str[tcode], tcode); 252117632Sharti return EINVAL; 253117632Sharti } 254117632Sharti 255117632Sharti if(xferq->start == NULL){ 256117632Sharti printf("xferq->start == NULL\n"); 257117632Sharti return EINVAL; 258117632Sharti } 259117632Sharti if(!(xferq->queued < xferq->maxq)){ 260117632Sharti device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 261117632Sharti xferq->queued); 262117632Sharti return EAGAIN; 263117632Sharti } 264117632Sharti 265117632Sharti xfer->tl = -1; 266117632Sharti if (info->flag & FWTI_TLABEL) { 267117632Sharti if (fw_get_tlabel(fc, xfer) < 0) 268117632Sharti return EAGAIN; 269117632Sharti } 270117632Sharti 271117632Sharti xfer->resp = 0; 272117632Sharti xfer->fc = fc; 273117632Sharti xfer->q = xferq; 274117632Sharti 275117632Sharti fw_asystart(xfer); 276117632Sharti return err; 277117632Sharti} 278117632Sharti/* 279117632Sharti * Wakeup blocked process. 280117632Sharti */ 281117632Shartivoid 282117632Shartifw_xferwake(struct fw_xfer *xfer) 283117632Sharti{ 284117632Sharti struct mtx *lock = &xfer->fc->wait_lock; 285147721Sharti 286117632Sharti mtx_lock(lock); 287117632Sharti xfer->flag |= FWXF_WAKE; 288117632Sharti mtx_unlock(lock); 289117632Sharti 290117632Sharti wakeup(xfer); 291117632Sharti return; 292148887Srwatson} 293117632Sharti 294117632Shartiint 295117632Shartifw_xferwait(struct fw_xfer *xfer) 296117632Sharti{ 297117632Sharti struct mtx *lock = &xfer->fc->wait_lock; 298117632Sharti int err = 0; 299117632Sharti 300117632Sharti mtx_lock(lock); 301117632Sharti if ((xfer->flag & FWXF_WAKE) == 0) 302117632Sharti err = msleep((void *)xfer, lock, PWAIT|PCATCH, "fw_xferwait", 0); 303117632Sharti mtx_unlock(lock); 304117632Sharti 305117632Sharti return (err); 306147256Sbrooks} 307117632Sharti 308117632Sharti/* 309117632Sharti * Async. request with given xfer structure. 310117632Sharti */ 311117632Shartistatic void 312117632Shartifw_asystart(struct fw_xfer *xfer) 313117632Sharti{ 314117632Sharti struct firewire_comm *fc = xfer->fc; 315117632Sharti int s; 316117632Sharti s = splfw(); 317117632Sharti /* Protect from interrupt/timeout */ 318147256Sbrooks FW_GLOCK(fc); 319117632Sharti xfer->flag = FWXF_INQ; 320117632Sharti STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 321117632Sharti#if 0 322117632Sharti xfer->q->queued ++; 323117632Sharti#endif 324117632Sharti FW_GUNLOCK(fc); 325147256Sbrooks splx(s); 326117632Sharti /* XXX just queue for mbuf */ 327117632Sharti if (xfer->mbuf == NULL) 328117632Sharti xfer->q->start(fc); 329117632Sharti return; 330117632Sharti} 331117632Sharti 332147256Sbrooksstatic void 333117632Shartifirewire_identify(driver_t *driver, device_t parent) 334117632Sharti{ 335117632Sharti BUS_ADD_CHILD(parent, 0, "firewire", -1); 336117632Sharti} 337117632Sharti 338117632Shartistatic int 339117632Shartifirewire_probe(device_t dev) 340117632Sharti{ 341117632Sharti device_set_desc(dev, "IEEE1394(FireWire) bus"); 342147256Sbrooks return (0); 343117632Sharti} 344117632Sharti 345117632Shartistatic void 346117632Shartifirewire_xfer_timeout(void *arg, int pending) 347117632Sharti{ 348117632Sharti struct firewire_comm *fc = (struct firewire_comm *)arg; 349117632Sharti struct fw_xfer *xfer, *txfer; 350117632Sharti struct timeval tv; 351147256Sbrooks struct timeval split_timeout; 352117632Sharti STAILQ_HEAD(, fw_xfer) xfer_timeout; 353117632Sharti int i, s; 354117632Sharti 355117632Sharti split_timeout.tv_sec = 0; 356117632Sharti split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 357117632Sharti 358117632Sharti microtime(&tv); 359147256Sbrooks timevalsub(&tv, &split_timeout); 360117632Sharti STAILQ_INIT(&xfer_timeout); 361117632Sharti 362117632Sharti s = splfw(); 363117632Sharti mtx_lock(&fc->tlabel_lock); 364117632Sharti for (i = 0; i < 0x40; i ++) { 365117632Sharti while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 366117632Sharti if ((xfer->flag & FWXF_SENT) == 0) 367147256Sbrooks /* not sent yet */ 368117632Sharti break; 369117632Sharti if (timevalcmp(&xfer->tv, &tv, >)) 370117632Sharti /* the rests are newer than this */ 371117632Sharti break; 372117632Sharti device_printf(fc->bdev, 373117632Sharti "split transaction timeout: " 374117632Sharti "tl=0x%x flag=0x%02x\n", i, xfer->flag); 375117632Sharti fw_dump_hdr(&xfer->send.hdr, "send"); 376254804Sandre xfer->resp = ETIMEDOUT; 377117632Sharti STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 378117632Sharti STAILQ_INSERT_TAIL(&xfer_timeout, xfer, tlabel); 379117632Sharti } 380147256Sbrooks } 381117632Sharti mtx_unlock(&fc->tlabel_lock); 382117632Sharti splx(s); 383117632Sharti fc->timeout(fc); 384117632Sharti 385117632Sharti STAILQ_FOREACH_SAFE(xfer, &xfer_timeout, tlabel, txfer) 386117632Sharti xfer->hand(xfer); 387117632Sharti} 388117632Sharti 389118539Sharti#define WATCHDOG_HZ 10 390117632Shartistatic void 391117632Shartifirewire_watchdog(void *arg) 392117632Sharti{ 393117632Sharti struct firewire_comm *fc; 394117632Sharti static int watchdog_clock = 0; 395117632Sharti 396117632Sharti fc = (struct firewire_comm *)arg; 397117632Sharti 398117632Sharti /* 399117632Sharti * At boot stage, the device interrupt is disabled and 400117632Sharti * We encounter a timeout easily. To avoid this, 401117632Sharti * ignore clock interrupt for a while. 402117632Sharti */ 403117632Sharti if (watchdog_clock > WATCHDOG_HZ * 15) 404117632Sharti taskqueue_enqueue(fc->taskqueue, &fc->task_timeout); 405117632Sharti else 406117632Sharti watchdog_clock ++; 407117632Sharti 408117632Sharti callout_reset(&fc->timeout_callout, hz / WATCHDOG_HZ, 409117632Sharti (void *)firewire_watchdog, (void *)fc); 410117632Sharti} 411117632Sharti 412117632Sharti/* 413117632Sharti * The attach routine. 414117632Sharti */ 415117632Shartistatic int 416117632Shartifirewire_attach(device_t dev) 417117632Sharti{ 418147256Sbrooks int unit; 419117632Sharti struct firewire_softc *sc = device_get_softc(dev); 420117632Sharti device_t pa = device_get_parent(dev); 421117632Sharti struct firewire_comm *fc; 422117632Sharti 423117632Sharti fc = (struct firewire_comm *)device_get_softc(pa); 424117632Sharti sc->fc = fc; 425117872Sharti fc->status = FWBUSNOTREADY; 426117632Sharti 427117632Sharti unit = device_get_unit(dev); 428117632Sharti if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 429117632Sharti 430117632Sharti fwdev_makedev(sc); 431117632Sharti 432117632Sharti mtx_init(&fc->wait_lock, "fwwait", NULL, MTX_DEF); 433117632Sharti mtx_init(&fc->tlabel_lock, "fwtlabel", NULL, MTX_DEF); 434117632Sharti CALLOUT_INIT(&fc->timeout_callout); 435117632Sharti CALLOUT_INIT(&fc->bmr_callout); 436117632Sharti CALLOUT_INIT(&fc->busprobe_callout); 437117632Sharti TASK_INIT(&fc->task_timeout, 0, firewire_xfer_timeout, (void *)fc); 438117632Sharti 439117632Sharti callout_reset(&sc->fc->timeout_callout, hz, 440117632Sharti (void *)firewire_watchdog, (void *)sc->fc); 441243857Sglebius 442117632Sharti /* create thread */ 443117632Sharti kproc_create(fw_bus_probe_thread, (void *)fc, &fc->probe_thread, 444147256Sbrooks 0, 0, "fw%d_probe", unit); 445117632Sharti 446117632Sharti /* Locate our children */ 447117632Sharti bus_generic_probe(dev); 448117632Sharti 449117632Sharti /* launch attachement of the added children */ 450117632Sharti bus_generic_attach(dev); 451117632Sharti 452117632Sharti /* bus_reset */ 453117632Sharti fw_busreset(fc, FWBUSNOTREADY); 454117632Sharti fc->ibr(fc); 455117632Sharti 456117632Sharti return 0; 457117632Sharti} 458117632Sharti 459117632Sharti/* 460117632Sharti * Attach it as child. 461117632Sharti */ 462117632Shartistatic device_t 463117632Shartifirewire_add_child(device_t dev, int order, const char *name, int unit) 464117632Sharti{ 465117632Sharti device_t child; 466117632Sharti struct firewire_softc *sc; 467117632Sharti 468117632Sharti sc = (struct firewire_softc *)device_get_softc(dev); 469117632Sharti child = device_add_child(dev, name, unit); 470117632Sharti if (child) { 471117632Sharti device_set_ivars(child, sc->fc); 472117632Sharti device_probe_and_attach(child); 473117632Sharti } 474117632Sharti 475117632Sharti return child; 476254804Sandre} 477117632Sharti 478117632Shartistatic int 479117632Shartifirewire_resume(device_t dev) 480117632Sharti{ 481117632Sharti struct firewire_softc *sc; 482117632Sharti 483117632Sharti sc = (struct firewire_softc *)device_get_softc(dev); 484117632Sharti sc->fc->status = FWBUSNOTREADY; 485117632Sharti 486117632Sharti bus_generic_resume(dev); 487117632Sharti 488117632Sharti return(0); 489117632Sharti} 490117632Sharti 491117632Sharti/* 492117632Sharti * Dettach it. 493117632Sharti */ 494117632Shartistatic int 495117632Shartifirewire_detach(device_t dev) 496117632Sharti{ 497117632Sharti struct firewire_softc *sc; 498117632Sharti struct firewire_comm *fc; 499117632Sharti struct fw_device *fwdev, *fwdev_next; 500117632Sharti int err; 501117632Sharti 502254804Sandre sc = (struct firewire_softc *)device_get_softc(dev); 503117632Sharti fc = sc->fc; 504117632Sharti mtx_lock(&fc->wait_lock); 505117632Sharti fc->status = FWBUSDETACH; 506117632Sharti wakeup(fc); 507117632Sharti if (msleep(fc->probe_thread, &fc->wait_lock, PWAIT, "fwthr", hz * 60)) 508117632Sharti printf("firewire probe thread didn't die\n"); 509117632Sharti mtx_unlock(&fc->wait_lock); 510117632Sharti 511117632Sharti if ((err = fwdev_destroydev(sc)) != 0) 512117632Sharti return err; 513117632Sharti 514117632Sharti if ((err = bus_generic_detach(dev)) != 0) 515117632Sharti return err; 516117632Sharti 517117632Sharti callout_stop(&fc->timeout_callout); 518117632Sharti callout_stop(&fc->bmr_callout); 519117632Sharti callout_stop(&fc->busprobe_callout); 520117632Sharti 521117632Sharti /* XXX xfree_free and untimeout on all xfers */ 522117632Sharti for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 523117632Sharti fwdev = fwdev_next) { 524117632Sharti fwdev_next = STAILQ_NEXT(fwdev, link); 525117632Sharti free(fwdev, M_FW); 526117632Sharti } 527117632Sharti free(fc->topology_map, M_FW); 528117632Sharti free(fc->speed_map, M_FW); 529117632Sharti free(fc->crom_src_buf, M_FW); 530117632Sharti 531117632Sharti mtx_destroy(&fc->tlabel_lock); 532117632Sharti mtx_destroy(&fc->wait_lock); 533117632Sharti return(0); 534117632Sharti} 535243857Sglebius#if 0 536147256Sbrooksstatic int 537117632Shartifirewire_shutdown( device_t dev ) 538117632Sharti{ 539117632Sharti return 0; 540117632Sharti} 541117632Sharti#endif 542117632Sharti 543117632Sharti 544147256Sbrooksstatic void 545117632Shartifw_xferq_drain(struct fw_xferq *xferq) 546117632Sharti{ 547117632Sharti struct fw_xfer *xfer; 548117632Sharti 549117632Sharti while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 550147256Sbrooks STAILQ_REMOVE_HEAD(&xferq->q, link); 551117632Sharti#if 0 552117632Sharti xferq->queued --; 553117632Sharti#endif 554117632Sharti xfer->resp = EAGAIN; 555117632Sharti xfer->flag = FWXF_SENTERR; 556117632Sharti fw_xfer_done(xfer); 557117632Sharti } 558117632Sharti} 559117632Sharti 560117632Shartivoid 561117632Shartifw_drain_txq(struct firewire_comm *fc) 562117632Sharti{ 563117632Sharti struct fw_xfer *xfer, *txfer; 564117632Sharti STAILQ_HEAD(, fw_xfer) xfer_drain; 565117632Sharti int i; 566117632Sharti 567117632Sharti STAILQ_INIT(&xfer_drain); 568117632Sharti 569117632Sharti FW_GLOCK(fc); 570117632Sharti fw_xferq_drain(fc->atq); 571117632Sharti fw_xferq_drain(fc->ats); 572117632Sharti for(i = 0; i < fc->nisodma; i++) 573117632Sharti fw_xferq_drain(fc->it[i]); 574117632Sharti FW_GUNLOCK(fc); 575117632Sharti 576117632Sharti mtx_lock(&fc->tlabel_lock); 577117632Sharti for (i = 0; i < 0x40; i ++) 578117632Sharti while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 579117632Sharti if (firewire_debug) 580117632Sharti printf("tl=%d flag=%d\n", i, xfer->flag); 581117632Sharti xfer->resp = EAGAIN; 582117632Sharti STAILQ_REMOVE_HEAD(&fc->tlabels[i], tlabel); 583117632Sharti STAILQ_INSERT_TAIL(&xfer_drain, xfer, tlabel); 584117632Sharti } 585117632Sharti mtx_unlock(&fc->tlabel_lock); 586117632Sharti 587117632Sharti STAILQ_FOREACH_SAFE(xfer, &xfer_drain, tlabel, txfer) 588117632Sharti xfer->hand(xfer); 589117632Sharti} 590117632Sharti 591117632Shartistatic void 592117632Shartifw_reset_csr(struct firewire_comm *fc) 593117632Sharti{ 594117632Sharti int i; 595117632Sharti 596117632Sharti CSRARC(fc, STATE_CLEAR) 597117632Sharti = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 598117632Sharti CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 599117632Sharti CSRARC(fc, NODE_IDS) = 0x3f; 600117632Sharti 601117632Sharti CSRARC(fc, TOPO_MAP + 8) = 0; 602117632Sharti fc->irm = -1; 603117632Sharti 604117632Sharti fc->max_node = -1; 605117632Sharti 606117632Sharti for(i = 2; i < 0x100/4 - 2 ; i++){ 607117632Sharti CSRARC(fc, SPED_MAP + i * 4) = 0; 608117632Sharti } 609117632Sharti CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 610117632Sharti CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 611117632Sharti CSRARC(fc, RESET_START) = 0; 612117632Sharti CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 613117632Sharti CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 614117632Sharti CSRARC(fc, CYCLE_TIME) = 0x0; 615117632Sharti CSRARC(fc, BUS_TIME) = 0x0; 616117632Sharti CSRARC(fc, BUS_MGR_ID) = 0x3f; 617117632Sharti CSRARC(fc, BANDWIDTH_AV) = 4915; 618117632Sharti CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 619117632Sharti CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 620117632Sharti CSRARC(fc, IP_CHANNELS) = (1 << 31); 621117632Sharti 622117632Sharti CSRARC(fc, CONF_ROM) = 0x04 << 24; 623117632Sharti CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 624117632Sharti CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 625117632Sharti 1 << 28 | 0xff << 16 | 0x09 << 8; 626117632Sharti CSRARC(fc, CONF_ROM + 0xc) = 0; 627117632Sharti 628117632Sharti/* DV depend CSRs see blue book */ 629117632Sharti CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 630117632Sharti CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 631117632Sharti 632117632Sharti CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 633117632Sharti CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 634117632Sharti} 635117632Sharti 636117632Shartistatic void 637117632Shartifw_init_crom(struct firewire_comm *fc) 638117632Sharti{ 639117632Sharti struct crom_src *src; 640117632Sharti 641117632Sharti fc->crom_src_buf = (struct crom_src_buf *) 642117632Sharti malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 643117632Sharti if (fc->crom_src_buf == NULL) 644117632Sharti return; 645117632Sharti 646117632Sharti src = &fc->crom_src_buf->src; 647117632Sharti bzero(src, sizeof(struct crom_src)); 648117632Sharti 649117632Sharti /* BUS info sample */ 650117632Sharti src->hdr.info_len = 4; 651117632Sharti 652117632Sharti src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 653117632Sharti 654117632Sharti src->businfo.irmc = 1; 655117632Sharti src->businfo.cmc = 1; 656117632Sharti src->businfo.isc = 1; 657117632Sharti src->businfo.bmc = 1; 658117632Sharti src->businfo.pmc = 0; 659117632Sharti src->businfo.cyc_clk_acc = 100; 660117632Sharti src->businfo.max_rec = fc->maxrec; 661117632Sharti src->businfo.max_rom = MAXROM_4; 662117632Sharti src->businfo.generation = 1; 663117632Sharti src->businfo.link_spd = fc->speed; 664117632Sharti 665117632Sharti src->businfo.eui64.hi = fc->eui.hi; 666117632Sharti src->businfo.eui64.lo = fc->eui.lo; 667117632Sharti 668117632Sharti STAILQ_INIT(&src->chunk_list); 669117632Sharti 670117632Sharti fc->crom_src = src; 671117632Sharti fc->crom_root = &fc->crom_src_buf->root; 672117632Sharti} 673117632Sharti 674117632Shartistatic void 675117632Shartifw_reset_crom(struct firewire_comm *fc) 676117632Sharti{ 677117632Sharti struct crom_src_buf *buf; 678117632Sharti struct crom_src *src; 679117632Sharti struct crom_chunk *root; 680117632Sharti 681117632Sharti if (fc->crom_src_buf == NULL) 682117632Sharti fw_init_crom(fc); 683117632Sharti 684117632Sharti buf = fc->crom_src_buf; 685117632Sharti src = fc->crom_src; 686117632Sharti root = fc->crom_root; 687117632Sharti 688117632Sharti STAILQ_INIT(&src->chunk_list); 689117632Sharti 690117632Sharti bzero(root, sizeof(struct crom_chunk)); 691117632Sharti crom_add_chunk(src, NULL, root, 0); 692117632Sharti crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 693254804Sandre /* private company_id */ 694117632Sharti crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 695117632Sharti#ifdef __DragonFly__ 696117632Sharti crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 697117632Sharti crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 698117632Sharti#else 699117632Sharti crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 700117632Sharti crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 701117632Sharti#endif 702117632Sharti crom_add_simple_text(src, root, &buf->hw, hostname); 703117632Sharti} 704117632Sharti 705117632Sharti/* 706117632Sharti * Called after bus reset. 707117632Sharti */ 708117632Shartivoid 709117632Shartifw_busreset(struct firewire_comm *fc, uint32_t new_status) 710117632Sharti{ 711117632Sharti struct firewire_dev_comm *fdc; 712117632Sharti struct crom_src *src; 713117632Sharti device_t *devlistp; 714117632Sharti void *newrom; 715117632Sharti int i, devcnt; 716118539Sharti 717117632Sharti switch(fc->status){ 718117632Sharti case FWBUSMGRELECT: 719117632Sharti callout_stop(&fc->bmr_callout); 720117632Sharti break; 721117632Sharti default: 722117632Sharti break; 723117632Sharti } 724117632Sharti fc->status = new_status; 725117632Sharti fw_reset_csr(fc); 726117632Sharti fw_reset_crom(fc); 727117632Sharti 728117632Sharti if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 729117632Sharti for( i = 0 ; i < devcnt ; i++) 730117632Sharti if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 731117632Sharti fdc = device_get_softc(devlistp[i]); 732117632Sharti if (fdc->post_busreset != NULL) 733117632Sharti fdc->post_busreset(fdc); 734117632Sharti } 735117632Sharti free(devlistp, M_TEMP); 736117632Sharti } 737117632Sharti 738117632Sharti newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 739117632Sharti src = &fc->crom_src_buf->src; 740117632Sharti crom_load(src, (uint32_t *)newrom, CROMSIZE); 741117632Sharti if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 742117632Sharti /* bump generation and reload */ 743117632Sharti src->businfo.generation ++; 744147256Sbrooks /* generation must be between 0x2 and 0xF */ 745117632Sharti if (src->businfo.generation < 2) 746117632Sharti src->businfo.generation ++; 747117632Sharti crom_load(src, (uint32_t *)newrom, CROMSIZE); 748117632Sharti bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 749147256Sbrooks } 750118158Sharti free(newrom, M_FW); 751117632Sharti} 752117632Sharti 753117632Sharti/* Call once after reboot */ 754117632Shartivoid fw_init(struct firewire_comm *fc) 755117632Sharti{ 756117632Sharti int i; 757117632Sharti#ifdef FW_VMACCESS 758117632Sharti struct fw_xfer *xfer; 759117632Sharti struct fw_bind *fwb; 760117632Sharti#endif 761117632Sharti 762117632Sharti fc->arq->queued = 0; 763117632Sharti fc->ars->queued = 0; 764117632Sharti fc->atq->queued = 0; 765117632Sharti fc->ats->queued = 0; 766117632Sharti 767117632Sharti fc->arq->buf = NULL; 768117632Sharti fc->ars->buf = NULL; 769117632Sharti fc->atq->buf = NULL; 770117632Sharti fc->ats->buf = NULL; 771117632Sharti 772117632Sharti fc->arq->flag = 0; 773117632Sharti fc->ars->flag = 0; 774117632Sharti fc->atq->flag = 0; 775117632Sharti fc->ats->flag = 0; 776117632Sharti 777117632Sharti STAILQ_INIT(&fc->atq->q); 778117632Sharti STAILQ_INIT(&fc->ats->q); 779117632Sharti 780117632Sharti for( i = 0 ; i < fc->nisodma ; i ++ ){ 781117632Sharti fc->it[i]->queued = 0; 782117632Sharti fc->ir[i]->queued = 0; 783117632Sharti 784117632Sharti fc->it[i]->start = NULL; 785117632Sharti fc->ir[i]->start = NULL; 786117632Sharti 787117632Sharti fc->it[i]->buf = NULL; 788117632Sharti fc->ir[i]->buf = NULL; 789117632Sharti 790117632Sharti fc->it[i]->flag = FWXFERQ_STREAM; 791117632Sharti fc->ir[i]->flag = FWXFERQ_STREAM; 792117632Sharti 793117632Sharti STAILQ_INIT(&fc->it[i]->q); 794117632Sharti STAILQ_INIT(&fc->ir[i]->q); 795117632Sharti } 796117632Sharti 797117632Sharti fc->arq->maxq = FWMAXQUEUE; 798117632Sharti fc->ars->maxq = FWMAXQUEUE; 799117632Sharti fc->atq->maxq = FWMAXQUEUE; 800117632Sharti fc->ats->maxq = FWMAXQUEUE; 801117632Sharti 802117632Sharti for( i = 0 ; i < fc->nisodma ; i++){ 803117632Sharti fc->ir[i]->maxq = FWMAXQUEUE; 804117632Sharti fc->it[i]->maxq = FWMAXQUEUE; 805117632Sharti } 806117632Sharti/* Initialize csr registers */ 807117632Sharti fc->topology_map = (struct fw_topology_map *)malloc( 808117632Sharti sizeof(struct fw_topology_map), 809117632Sharti M_FW, M_NOWAIT | M_ZERO); 810117632Sharti fc->speed_map = (struct fw_speed_map *)malloc( 811117632Sharti sizeof(struct fw_speed_map), 812117632Sharti M_FW, M_NOWAIT | M_ZERO); 813117632Sharti CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 814117632Sharti CSRARC(fc, TOPO_MAP + 4) = 1; 815117632Sharti CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 816117632Sharti CSRARC(fc, SPED_MAP + 4) = 1; 817117632Sharti 818117632Sharti STAILQ_INIT(&fc->devices); 819117632Sharti 820117632Sharti/* Initialize Async handlers */ 821117632Sharti STAILQ_INIT(&fc->binds); 822117632Sharti for( i = 0 ; i < 0x40 ; i++){ 823117632Sharti STAILQ_INIT(&fc->tlabels[i]); 824117632Sharti } 825117632Sharti 826117632Sharti/* DV depend CSRs see blue book */ 827117632Sharti#if 0 828117632Sharti CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 829117632Sharti CSRARC(fc, oPCR) = 0x8000007a; 830117632Sharti for(i = 4 ; i < 0x7c/4 ; i+=4){ 831117632Sharti CSRARC(fc, i + oPCR) = 0x8000007a; 832117632Sharti } 833117632Sharti 834117632Sharti CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 835117632Sharti CSRARC(fc, iPCR) = 0x803f0000; 836117632Sharti for(i = 4 ; i < 0x7c/4 ; i+=4){ 837117632Sharti CSRARC(fc, i + iPCR) = 0x0; 838117632Sharti } 839117632Sharti#endif 840117632Sharti 841117632Sharti fc->crom_src_buf = NULL; 842117632Sharti 843117632Sharti#ifdef FW_VMACCESS 844117632Sharti xfer = fw_xfer_alloc(); 845117632Sharti if(xfer == NULL) return; 846117632Sharti 847117632Sharti fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 848117632Sharti if(fwb == NULL){ 849117632Sharti fw_xfer_free(xfer); 850117632Sharti return; 851117632Sharti } 852117632Sharti xfer->hand = fw_vmaccess; 853117632Sharti xfer->fc = fc; 854117632Sharti xfer->sc = NULL; 855117632Sharti 856117632Sharti fwb->start_hi = 0x2; 857117632Sharti fwb->start_lo = 0; 858117632Sharti fwb->addrlen = 0xffffffff; 859117632Sharti fwb->xfer = xfer; 860117632Sharti fw_bindadd(fc, fwb); 861117632Sharti#endif 862117632Sharti} 863117632Sharti 864117632Sharti#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 865117632Sharti ((fwb)->end < (addr))?1:0) 866117632Sharti 867117632Sharti/* 868117632Sharti * To lookup bound process from IEEE1394 address. 869117632Sharti */ 870117632Shartistruct fw_bind * 871117632Shartifw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 872117632Sharti{ 873117632Sharti u_int64_t addr; 874117632Sharti struct fw_bind *tfw, *r = NULL; 875117632Sharti 876117632Sharti addr = ((u_int64_t)dest_hi << 32) | dest_lo; 877117632Sharti FW_GLOCK(fc); 878117632Sharti STAILQ_FOREACH(tfw, &fc->binds, fclist) 879117632Sharti if (BIND_CMP(addr, tfw) == 0) { 880117632Sharti r = tfw; 881117632Sharti break; 882117632Sharti } 883117632Sharti FW_GUNLOCK(fc); 884117632Sharti return(r); 885117632Sharti} 886117632Sharti 887117632Sharti/* 888117632Sharti * To bind IEEE1394 address block to process. 889117632Sharti */ 890117632Shartiint 891117632Shartifw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 892117632Sharti{ 893117632Sharti struct fw_bind *tfw, *prev = NULL; 894117632Sharti int r = 0; 895117632Sharti 896117632Sharti if (fwb->start > fwb->end) { 897117632Sharti printf("%s: invalid range\n", __func__); 898117632Sharti return EINVAL; 899117632Sharti } 900117632Sharti 901117632Sharti FW_GLOCK(fc); 902117632Sharti STAILQ_FOREACH(tfw, &fc->binds, fclist) { 903117632Sharti if (fwb->end < tfw->start) 904117632Sharti break; 905117632Sharti prev = tfw; 906117632Sharti } 907117632Sharti if (prev == NULL) 908117632Sharti STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 909117632Sharti else if (prev->end < fwb->start) 910117632Sharti STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 911117632Sharti else { 912117632Sharti printf("%s: bind failed\n", __func__); 913117632Sharti r = EBUSY; 914117632Sharti } 915117632Sharti FW_GUNLOCK(fc); 916117632Sharti return (r); 917117632Sharti} 918117632Sharti 919117632Sharti/* 920117632Sharti * To free IEEE1394 address block. 921117632Sharti */ 922117632Shartiint 923117632Shartifw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 924117632Sharti{ 925117632Sharti#if 0 926117632Sharti struct fw_xfer *xfer, *next; 927117632Sharti#endif 928117632Sharti struct fw_bind *tfw; 929117632Sharti int s; 930117632Sharti 931117632Sharti s = splfw(); 932117632Sharti FW_GLOCK(fc); 933117632Sharti STAILQ_FOREACH(tfw, &fc->binds, fclist) 934117632Sharti if (tfw == fwb) { 935117632Sharti STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 936117632Sharti goto found; 937117632Sharti } 938117632Sharti 939117632Sharti printf("%s: no such binding\n", __func__); 940117632Sharti FW_GUNLOCK(fc); 941117632Sharti splx(s); 942117632Sharti return (1); 943117632Shartifound: 944117632Sharti#if 0 945117632Sharti /* shall we do this? */ 946117632Sharti for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 947117632Sharti next = STAILQ_NEXT(xfer, link); 948117632Sharti fw_xfer_free(xfer); 949117632Sharti } 950117632Sharti STAILQ_INIT(&fwb->xferlist); 951117632Sharti#endif 952117632Sharti FW_GUNLOCK(fc); 953117632Sharti 954117632Sharti splx(s); 955117632Sharti return 0; 956117632Sharti} 957117632Sharti 958117632Shartiint 959117632Shartifw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 960117632Sharti int slen, int rlen, int n, 961117632Sharti struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 962117632Sharti{ 963117632Sharti int i, s; 964117632Sharti struct fw_xfer *xfer; 965117632Sharti 966117632Sharti for (i = 0; i < n; i++) { 967117632Sharti xfer = fw_xfer_alloc_buf(type, slen, rlen); 968117632Sharti if (xfer == NULL) 969117632Sharti return (n); 970117632Sharti xfer->fc = fc; 971117632Sharti xfer->sc = sc; 972117632Sharti xfer->hand = hand; 973117632Sharti s = splfw(); 974117632Sharti STAILQ_INSERT_TAIL(q, xfer, link); 975117632Sharti splx(s); 976117632Sharti } 977117632Sharti return (n); 978117632Sharti} 979117632Sharti 980117632Shartivoid 981117632Shartifw_xferlist_remove(struct fw_xferlist *q) 982117632Sharti{ 983117632Sharti struct fw_xfer *xfer, *next; 984117632Sharti 985117632Sharti for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 986117632Sharti next = STAILQ_NEXT(xfer, link); 987117632Sharti fw_xfer_free_buf(xfer); 988117632Sharti } 989117632Sharti STAILQ_INIT(q); 990117632Sharti} 991117632Sharti/* 992117632Sharti * dump packet header 993117632Sharti */ 994117632Shartistatic void 995117632Shartifw_dump_hdr(struct fw_pkt *fp, char *prefix) 996117632Sharti{ 997117632Sharti printf("%s: dst=0x%02x tl=0x%02x rt=%d tcode=0x%x pri=0x%x " 998117632Sharti "src=0x%03x\n", prefix, 999117632Sharti fp->mode.hdr.dst & 0x3f, 1000117632Sharti fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tlrt & 3, 1001117632Sharti fp->mode.hdr.tcode, fp->mode.hdr.pri, 1002117632Sharti fp->mode.hdr.src); 1003117632Sharti} 1004117632Sharti 1005117632Sharti/* 1006117632Sharti * To free transaction label. 1007117632Sharti */ 1008117632Shartistatic void 1009117632Shartifw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1010117632Sharti{ 1011117632Sharti struct fw_xfer *txfer; 1012117632Sharti int s; 1013117632Sharti 1014117632Sharti if (xfer->tl < 0) 1015117632Sharti return; 1016117632Sharti 1017117632Sharti s = splfw(); 1018117632Sharti mtx_lock(&fc->tlabel_lock); 1019117632Sharti#if 1 /* make sure the label is allocated */ 1020117632Sharti STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1021117632Sharti if(txfer == xfer) 1022117632Sharti break; 1023117632Sharti if (txfer == NULL) { 1024117632Sharti printf("%s: the xfer is not in the queue " 1025117632Sharti "(tlabel=%d, flag=0x%x)\n", 1026117632Sharti __FUNCTION__, xfer->tl, xfer->flag); 1027117632Sharti fw_dump_hdr(&xfer->send.hdr, "send"); 1028117632Sharti fw_dump_hdr(&xfer->recv.hdr, "recv"); 1029117632Sharti kdb_backtrace(); 1030117632Sharti mtx_unlock(&fc->tlabel_lock); 1031117632Sharti splx(s); 1032117632Sharti return; 1033117632Sharti } 1034117632Sharti#endif 1035117632Sharti 1036117632Sharti STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1037117632Sharti mtx_unlock(&fc->tlabel_lock); 1038117632Sharti splx(s); 1039117632Sharti return; 1040117632Sharti} 1041117632Sharti 1042117632Sharti/* 1043117632Sharti * To obtain XFER structure by transaction label. 1044117632Sharti */ 1045117632Shartistatic struct fw_xfer * 1046117632Shartifw_tl2xfer(struct firewire_comm *fc, int node, int tlabel, int tcode) 1047117632Sharti{ 1048117632Sharti struct fw_xfer *xfer; 1049117632Sharti int s = splfw(); 1050117632Sharti int req; 1051117632Sharti 1052117632Sharti mtx_lock(&fc->tlabel_lock); 1053117632Sharti STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1054117632Sharti if(xfer->send.hdr.mode.hdr.dst == node) { 1055117632Sharti mtx_unlock(&fc->tlabel_lock); 1056117632Sharti splx(s); 1057117632Sharti KASSERT(xfer->tl == tlabel, 1058117632Sharti ("xfer->tl 0x%x != 0x%x", xfer->tl, tlabel)); 1059117632Sharti /* extra sanity check */ 1060117632Sharti req = xfer->send.hdr.mode.hdr.tcode; 1061117632Sharti if (xfer->fc->tcode[req].valid_res != tcode) { 1062117632Sharti printf("%s: invalid response tcode " 1063117632Sharti "(0x%x for 0x%x)\n", __FUNCTION__, 1064117632Sharti tcode, req); 1065117632Sharti return(NULL); 1066117632Sharti } 1067117632Sharti 1068117632Sharti if (firewire_debug > 2) 1069117632Sharti printf("fw_tl2xfer: found tl=%d\n", tlabel); 1070117632Sharti return(xfer); 1071117632Sharti } 1072117632Sharti mtx_unlock(&fc->tlabel_lock); 1073117632Sharti if (firewire_debug > 1) 1074117632Sharti printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1075117632Sharti splx(s); 1076117632Sharti return(NULL); 1077117632Sharti} 1078117632Sharti 1079117632Sharti/* 1080117632Sharti * To allocate IEEE1394 XFER structure. 1081117632Sharti */ 1082117632Shartistruct fw_xfer * 1083117632Shartifw_xfer_alloc(struct malloc_type *type) 1084117632Sharti{ 1085117632Sharti struct fw_xfer *xfer; 1086117632Sharti 1087117632Sharti xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1088117632Sharti if (xfer == NULL) 1089117632Sharti return xfer; 1090117632Sharti 1091117632Sharti xfer->malloc = type; 1092117632Sharti 1093117632Sharti return xfer; 1094117632Sharti} 1095117632Sharti 1096117632Shartistruct fw_xfer * 1097117632Shartifw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1098117632Sharti{ 1099117632Sharti struct fw_xfer *xfer; 1100117632Sharti 1101117632Sharti xfer = fw_xfer_alloc(type); 1102117632Sharti if (xfer == NULL) 1103117632Sharti return(NULL); 1104117632Sharti xfer->send.pay_len = send_len; 1105117632Sharti xfer->recv.pay_len = recv_len; 1106117632Sharti if (send_len > 0) { 1107117632Sharti xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1108117632Sharti if (xfer->send.payload == NULL) { 1109117632Sharti fw_xfer_free(xfer); 1110117632Sharti return(NULL); 1111117632Sharti } 1112117632Sharti } 1113117632Sharti if (recv_len > 0) { 1114117632Sharti xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1115117632Sharti if (xfer->recv.payload == NULL) { 1116117632Sharti if (xfer->send.payload != NULL) 1117117632Sharti free(xfer->send.payload, type); 1118117632Sharti fw_xfer_free(xfer); 1119117632Sharti return(NULL); 1120117632Sharti } 1121117632Sharti } 1122117632Sharti return(xfer); 1123117632Sharti} 1124117632Sharti 1125117632Sharti/* 1126117632Sharti * IEEE1394 XFER post process. 1127117632Sharti */ 1128117632Shartivoid 1129147256Sbrooksfw_xfer_done(struct fw_xfer *xfer) 1130117632Sharti{ 1131117632Sharti if (xfer->hand == NULL) { 1132117632Sharti printf("hand == NULL\n"); 1133117632Sharti return; 1134117632Sharti } 1135117632Sharti 1136117632Sharti if (xfer->fc == NULL) 1137117632Sharti panic("fw_xfer_done: why xfer->fc is NULL?"); 1138117632Sharti 1139117632Sharti fw_tl_free(xfer->fc, xfer); 1140117632Sharti xfer->hand(xfer); 1141117632Sharti} 1142117632Sharti 1143117632Shartivoid 1144117632Shartifw_xfer_unload(struct fw_xfer* xfer) 1145117632Sharti{ 1146117632Sharti int s; 1147117632Sharti 1148117632Sharti if(xfer == NULL ) return; 1149117632Sharti if(xfer->flag & FWXF_INQ){ 1150117632Sharti printf("fw_xfer_free FWXF_INQ\n"); 1151117632Sharti s = splfw(); 1152117632Sharti FW_GLOCK(xfer->fc); 1153117632Sharti STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1154117632Sharti#if 0 1155117632Sharti xfer->q->queued --; 1156117632Sharti#endif 1157117632Sharti FW_GUNLOCK(xfer->fc); 1158117632Sharti splx(s); 1159117632Sharti } 1160117632Sharti if (xfer->fc != NULL) { 1161117632Sharti#if 1 1162117632Sharti if(xfer->flag & FWXF_START) 1163117632Sharti /* 1164117632Sharti * This could happen if: 1165117632Sharti * 1. We call fwohci_arcv() before fwohci_txd(). 1166117632Sharti * 2. firewire_watch() is called. 1167117632Sharti */ 1168117632Sharti printf("fw_xfer_free FWXF_START\n"); 1169117632Sharti#endif 1170117632Sharti } 1171117632Sharti xfer->flag = FWXF_INIT; 1172117632Sharti xfer->resp = 0; 1173117632Sharti} 1174117632Sharti/* 1175117632Sharti * To free IEEE1394 XFER structure. 1176117632Sharti */ 1177117632Shartivoid 1178117632Shartifw_xfer_free_buf( struct fw_xfer* xfer) 1179117632Sharti{ 1180117632Sharti if (xfer == NULL) { 1181117632Sharti printf("%s: xfer == NULL\n", __func__); 1182117632Sharti return; 1183117632Sharti } 1184117632Sharti fw_xfer_unload(xfer); 1185117632Sharti if(xfer->send.payload != NULL){ 1186117632Sharti free(xfer->send.payload, xfer->malloc); 1187117632Sharti } 1188117632Sharti if(xfer->recv.payload != NULL){ 1189117632Sharti free(xfer->recv.payload, xfer->malloc); 1190117632Sharti } 1191117632Sharti free(xfer, xfer->malloc); 1192117632Sharti} 1193117632Sharti 1194117632Shartivoid 1195117632Shartifw_xfer_free( struct fw_xfer* xfer) 1196117632Sharti{ 1197117632Sharti if (xfer == NULL) { 1198117632Sharti printf("%s: xfer == NULL\n", __func__); 1199117632Sharti return; 1200117632Sharti } 1201117632Sharti fw_xfer_unload(xfer); 1202117632Sharti free(xfer, xfer->malloc); 1203117632Sharti} 1204117632Sharti 1205117632Shartivoid 1206117632Shartifw_asy_callback_free(struct fw_xfer *xfer) 1207117632Sharti{ 1208117632Sharti#if 0 1209117632Sharti printf("asyreq done flag=0x%02x resp=%d\n", 1210117632Sharti xfer->flag, xfer->resp); 1211117632Sharti#endif 1212117632Sharti fw_xfer_free(xfer); 1213117632Sharti} 1214117632Sharti 1215117632Sharti/* 1216117632Sharti * To configure PHY. 1217117632Sharti */ 1218117632Shartistatic void 1219117632Shartifw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1220117632Sharti{ 1221117632Sharti struct fw_xfer *xfer; 1222117632Sharti struct fw_pkt *fp; 1223117632Sharti 1224117632Sharti fc->status = FWBUSPHYCONF; 1225117632Sharti 1226117632Sharti xfer = fw_xfer_alloc(M_FWXFER); 1227117632Sharti if (xfer == NULL) 1228117632Sharti return; 1229117632Sharti xfer->fc = fc; 1230117632Sharti xfer->hand = fw_asy_callback_free; 1231117632Sharti 1232117632Sharti fp = &xfer->send.hdr; 1233117632Sharti fp->mode.ld[1] = 0; 1234117632Sharti if (root_node >= 0) 1235117632Sharti fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1236117632Sharti if (gap_count >= 0) 1237117632Sharti fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1238117632Sharti fp->mode.ld[2] = ~fp->mode.ld[1]; 1239117632Sharti/* XXX Dangerous, how to pass PHY packet to device driver */ 1240117632Sharti fp->mode.common.tcode |= FWTCODE_PHY; 1241117632Sharti 1242117632Sharti if (firewire_debug) 1243117632Sharti printf("send phy_config root_node=%d gap_count=%d\n", 1244117632Sharti root_node, gap_count); 1245117632Sharti fw_asyreq(fc, -1, xfer); 1246117632Sharti} 1247117632Sharti 1248117632Sharti#if 0 1249117632Sharti/* 1250117632Sharti * Dump self ID. 1251117632Sharti */ 1252117632Shartistatic void 1253117632Shartifw_print_sid(uint32_t sid) 1254117632Sharti{ 1255117632Sharti union fw_self_id *s; 1256117632Sharti s = (union fw_self_id *) &sid; 1257117632Sharti printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1258117632Sharti " p0:%d p1:%d p2:%d i:%d m:%d\n", 1259117632Sharti s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1260117632Sharti s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1261117632Sharti s->p0.power_class, s->p0.port0, s->p0.port1, 1262117632Sharti s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1263117632Sharti} 1264117632Sharti#endif 1265117632Sharti 1266117632Sharti/* 1267117632Sharti * To receive self ID. 1268117632Sharti */ 1269117632Shartivoid fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1270117632Sharti{ 1271117632Sharti uint32_t *p; 1272117632Sharti union fw_self_id *self_id; 1273117632Sharti u_int i, j, node, c_port = 0, i_branch = 0; 1274117632Sharti 1275117632Sharti fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1276117632Sharti fc->max_node = fc->nodeid & 0x3f; 1277 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1278 fc->status = FWBUSCYMELECT; 1279 fc->topology_map->crc_len = 2; 1280 fc->topology_map->generation ++; 1281 fc->topology_map->self_id_count = 0; 1282 fc->topology_map->node_count = 0; 1283 fc->speed_map->generation ++; 1284 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1285 self_id = &fc->topology_map->self_id[0]; 1286 for(i = 0; i < fc->sid_cnt; i ++){ 1287 if (sid[1] != ~sid[0]) { 1288 printf("fw_sidrcv: invalid self-id packet\n"); 1289 sid += 2; 1290 continue; 1291 } 1292 *self_id = *((union fw_self_id *)sid); 1293 fc->topology_map->crc_len++; 1294 if(self_id->p0.sequel == 0){ 1295 fc->topology_map->node_count ++; 1296 c_port = 0; 1297#if 0 1298 fw_print_sid(sid[0]); 1299#endif 1300 node = self_id->p0.phy_id; 1301 if(fc->max_node < node){ 1302 fc->max_node = self_id->p0.phy_id; 1303 } 1304 /* XXX I'm not sure this is the right speed_map */ 1305 fc->speed_map->speed[node][node] 1306 = self_id->p0.phy_speed; 1307 for (j = 0; j < node; j ++) { 1308 fc->speed_map->speed[j][node] 1309 = fc->speed_map->speed[node][j] 1310 = min(fc->speed_map->speed[j][j], 1311 self_id->p0.phy_speed); 1312 } 1313 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1314 (self_id->p0.link_active && self_id->p0.contender)) { 1315 fc->irm = self_id->p0.phy_id; 1316 } 1317 if(self_id->p0.port0 >= 0x2){ 1318 c_port++; 1319 } 1320 if(self_id->p0.port1 >= 0x2){ 1321 c_port++; 1322 } 1323 if(self_id->p0.port2 >= 0x2){ 1324 c_port++; 1325 } 1326 } 1327 if(c_port > 2){ 1328 i_branch += (c_port - 2); 1329 } 1330 sid += 2; 1331 self_id++; 1332 fc->topology_map->self_id_count ++; 1333 } 1334 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1335 /* CRC */ 1336 fc->topology_map->crc = fw_crc16( 1337 (uint32_t *)&fc->topology_map->generation, 1338 fc->topology_map->crc_len * 4); 1339 fc->speed_map->crc = fw_crc16( 1340 (uint32_t *)&fc->speed_map->generation, 1341 fc->speed_map->crc_len * 4); 1342 /* byteswap and copy to CSR */ 1343 p = (uint32_t *)fc->topology_map; 1344 for (i = 0; i <= fc->topology_map->crc_len; i++) 1345 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1346 p = (uint32_t *)fc->speed_map; 1347 CSRARC(fc, SPED_MAP) = htonl(*p++); 1348 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1349 /* don't byte-swap uint8_t array */ 1350 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1351 1352 fc->max_hop = fc->max_node - i_branch; 1353 printf(", maxhop <= %d", fc->max_hop); 1354 1355 if(fc->irm == -1 ){ 1356 printf(", Not found IRM capable node"); 1357 }else{ 1358 printf(", cable IRM = %d", fc->irm); 1359 if (fc->irm == fc->nodeid) 1360 printf(" (me)"); 1361 } 1362 printf("\n"); 1363 1364 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1365 if (fc->irm == fc->nodeid) { 1366 fc->status = FWBUSMGRDONE; 1367 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1368 fw_bmr(fc); 1369 } else { 1370 fc->status = FWBUSMGRELECT; 1371 callout_reset(&fc->bmr_callout, hz/8, 1372 (void *)fw_try_bmr, (void *)fc); 1373 } 1374 } else 1375 fc->status = FWBUSMGRDONE; 1376 1377 callout_reset(&fc->busprobe_callout, hz/4, 1378 (void *)fw_bus_probe, (void *)fc); 1379} 1380 1381/* 1382 * To probe devices on the IEEE1394 bus. 1383 */ 1384static void 1385fw_bus_probe(struct firewire_comm *fc) 1386{ 1387 int s; 1388 struct fw_device *fwdev; 1389 1390 s = splfw(); 1391 fc->status = FWBUSEXPLORE; 1392 1393 /* Invalidate all devices, just after bus reset. */ 1394 STAILQ_FOREACH(fwdev, &fc->devices, link) 1395 if (fwdev->status != FWDEVINVAL) { 1396 fwdev->status = FWDEVINVAL; 1397 fwdev->rcnt = 0; 1398 } 1399 splx(s); 1400 1401 wakeup((void *)fc); 1402} 1403 1404static int 1405fw_explore_read_quads(struct fw_device *fwdev, int offset, 1406 uint32_t *quad, int n) 1407{ 1408 struct fw_xfer *xfer; 1409 uint32_t tmp; 1410 int i, error; 1411 1412 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1413 xfer = fwmem_read_quad(fwdev, NULL, -1, 1414 0xffff, 0xf0000000 | offset, (void *)&tmp, 1415 fw_xferwake); 1416 if (xfer == NULL) 1417 return (-1); 1418 fw_xferwait(xfer); 1419 1420 if (xfer->resp == 0) 1421 quad[i] = ntohl(tmp); 1422 1423 error = xfer->resp; 1424 fw_xfer_free(xfer); 1425 if (error) 1426 return (error); 1427 } 1428 return (0); 1429} 1430 1431 1432static int 1433fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1434{ 1435 int err, i, off; 1436 struct csrdirectory *dir; 1437 struct csrreg *reg; 1438 1439 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1440 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1441 (uint32_t *)dir, 1); 1442 if (err) 1443 return (-1); 1444 1445 offset += sizeof(uint32_t); 1446 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1447 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1448 (uint32_t *)reg, dir->crc_len); 1449 if (err) 1450 return (-1); 1451 1452 /* XXX check CRC */ 1453 1454 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1455 if (fwdev->rommax < off) 1456 fwdev->rommax = off; 1457 1458 if (recur == 0) 1459 return (0); 1460 1461 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1462 if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_D) 1463 recur = 1; 1464 else if ((reg[i].key & CSRTYPE_MASK) == CSRTYPE_L) 1465 recur = 0; 1466 else 1467 continue; 1468 1469 off = offset + reg[i].val * sizeof(uint32_t); 1470 if (off > CROMSIZE) { 1471 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1472 return(-1); 1473 } 1474 err = fw_explore_csrblock(fwdev, off, recur); 1475 if (err) 1476 return (-1); 1477 } 1478 return (0); 1479} 1480 1481static int 1482fw_explore_node(struct fw_device *dfwdev) 1483{ 1484 struct firewire_comm *fc; 1485 struct fw_device *fwdev, *pfwdev, *tfwdev; 1486 uint32_t *csr; 1487 struct csrhdr *hdr; 1488 struct bus_info *binfo; 1489 int err, node, spd; 1490 1491 fc = dfwdev->fc; 1492 csr = dfwdev->csrrom; 1493 node = dfwdev->dst; 1494 1495 /* First quad */ 1496 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1497 if (err) 1498 return (-1); 1499 hdr = (struct csrhdr *)&csr[0]; 1500 if (hdr->info_len != 4) { 1501 if (firewire_debug) 1502 printf("node%d: wrong bus info len(%d)\n", 1503 node, hdr->info_len); 1504 return (-1); 1505 } 1506 1507 /* bus info */ 1508 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1509 if (err) 1510 return (-1); 1511 binfo = (struct bus_info *)&csr[1]; 1512 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1513 if (firewire_debug) 1514 printf("node%d: invalid bus name 0x%08x\n", 1515 node, binfo->bus_name); 1516 return (-1); 1517 } 1518 spd = fc->speed_map->speed[fc->nodeid][node]; 1519 STAILQ_FOREACH(fwdev, &fc->devices, link) 1520 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1521 break; 1522 if (fwdev == NULL) { 1523 /* new device */ 1524 fwdev = malloc(sizeof(struct fw_device), M_FW, 1525 M_NOWAIT | M_ZERO); 1526 if (fwdev == NULL) { 1527 if (firewire_debug) 1528 printf("node%d: no memory\n", node); 1529 return (-1); 1530 } 1531 fwdev->fc = fc; 1532 fwdev->eui = binfo->eui64; 1533 /* inesrt into sorted fwdev list */ 1534 pfwdev = NULL; 1535 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1536 if (tfwdev->eui.hi > fwdev->eui.hi || 1537 (tfwdev->eui.hi == fwdev->eui.hi && 1538 tfwdev->eui.lo > fwdev->eui.lo)) 1539 break; 1540 pfwdev = tfwdev; 1541 } 1542 if (pfwdev == NULL) 1543 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1544 else 1545 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1546 1547 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1548 linkspeed[spd], 1549 fwdev->eui.hi, fwdev->eui.lo); 1550 } 1551 fwdev->dst = node; 1552 fwdev->status = FWDEVINIT; 1553 fwdev->speed = spd; 1554 1555 /* unchanged ? */ 1556 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1557 if (firewire_debug) 1558 printf("node%d: crom unchanged\n", node); 1559 return (0); 1560 } 1561 1562 bzero(&fwdev->csrrom[0], CROMSIZE); 1563 1564 /* copy first quad and bus info block */ 1565 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1566 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1567 1568 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1569 1570 if (err) { 1571 fwdev->status = FWDEVINVAL; 1572 fwdev->csrrom[0] = 0; 1573 } 1574 return (err); 1575 1576} 1577 1578/* 1579 * Find the self_id packet for a node, ignoring sequels. 1580 */ 1581static union fw_self_id * 1582fw_find_self_id(struct firewire_comm *fc, int node) 1583{ 1584 uint32_t i; 1585 union fw_self_id *s; 1586 1587 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1588 s = &fc->topology_map->self_id[i]; 1589 if (s->p0.sequel) 1590 continue; 1591 if (s->p0.phy_id == node) 1592 return s; 1593 } 1594 return 0; 1595} 1596 1597static void 1598fw_explore(struct firewire_comm *fc) 1599{ 1600 int node, err, s, i, todo, todo2, trys; 1601 char nodes[63]; 1602 struct fw_device dfwdev; 1603 union fw_self_id *fwsid; 1604 1605 todo = 0; 1606 /* setup dummy fwdev */ 1607 dfwdev.fc = fc; 1608 dfwdev.speed = 0; 1609 dfwdev.maxrec = 8; /* 512 */ 1610 dfwdev.status = FWDEVINIT; 1611 1612 for (node = 0; node <= fc->max_node; node ++) { 1613 /* We don't probe myself and linkdown nodes */ 1614 if (node == fc->nodeid) 1615 continue; 1616 fwsid = fw_find_self_id(fc, node); 1617 if (!fwsid || !fwsid->p0.link_active) { 1618 if (firewire_debug) 1619 printf("node%d: link down\n", node); 1620 continue; 1621 } 1622 nodes[todo++] = node; 1623 } 1624 1625 s = splfw(); 1626 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1627 todo2 = 0; 1628 for (i = 0; i < todo; i ++) { 1629 dfwdev.dst = nodes[i]; 1630 err = fw_explore_node(&dfwdev); 1631 if (err) 1632 nodes[todo2++] = nodes[i]; 1633 if (firewire_debug) 1634 printf("%s: node %d, err = %d\n", 1635 __FUNCTION__, node, err); 1636 } 1637 todo = todo2; 1638 } 1639 splx(s); 1640} 1641 1642 1643static void 1644fw_bus_probe_thread(void *arg) 1645{ 1646 struct firewire_comm *fc; 1647 1648 fc = (struct firewire_comm *)arg; 1649 1650 mtx_lock(&fc->wait_lock); 1651 while (fc->status != FWBUSDETACH) { 1652 if (fc->status == FWBUSEXPLORE) { 1653 mtx_unlock(&fc->wait_lock); 1654 fw_explore(fc); 1655 fc->status = FWBUSEXPDONE; 1656 if (firewire_debug) 1657 printf("bus_explore done\n"); 1658 fw_attach_dev(fc); 1659 mtx_lock(&fc->wait_lock); 1660 } 1661 msleep((void *)fc, &fc->wait_lock, PWAIT|PCATCH, "-", 0); 1662 } 1663 mtx_unlock(&fc->wait_lock); 1664 kproc_exit(0); 1665} 1666 1667/* 1668 * To attach sub-devices layer onto IEEE1394 bus. 1669 */ 1670static void 1671fw_attach_dev(struct firewire_comm *fc) 1672{ 1673 struct fw_device *fwdev, *next; 1674 int i, err; 1675 device_t *devlistp; 1676 int devcnt; 1677 struct firewire_dev_comm *fdc; 1678 1679 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1680 next = STAILQ_NEXT(fwdev, link); 1681 if (fwdev->status == FWDEVINIT) { 1682 fwdev->status = FWDEVATTACHED; 1683 } else if (fwdev->status == FWDEVINVAL) { 1684 fwdev->rcnt ++; 1685 if (fwdev->rcnt > hold_count) { 1686 /* 1687 * Remove devices which have not been seen 1688 * for a while. 1689 */ 1690 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1691 link); 1692 free(fwdev, M_FW); 1693 } 1694 } 1695 } 1696 1697 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1698 if( err != 0 ) 1699 return; 1700 for( i = 0 ; i < devcnt ; i++){ 1701 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1702 fdc = device_get_softc(devlistp[i]); 1703 if (fdc->post_explore != NULL) 1704 fdc->post_explore(fdc); 1705 } 1706 } 1707 free(devlistp, M_TEMP); 1708 1709 return; 1710} 1711 1712/* 1713 * To allocate unique transaction label. 1714 */ 1715static int 1716fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1717{ 1718 u_int dst, new_tlabel; 1719 struct fw_xfer *txfer; 1720 int s; 1721 1722 dst = xfer->send.hdr.mode.hdr.dst & 0x3f; 1723 s = splfw(); 1724 mtx_lock(&fc->tlabel_lock); 1725 new_tlabel = (fc->last_tlabel[dst] + 1) & 0x3f; 1726 STAILQ_FOREACH(txfer, &fc->tlabels[new_tlabel], tlabel) 1727 if ((txfer->send.hdr.mode.hdr.dst & 0x3f) == dst) 1728 break; 1729 if(txfer == NULL) { 1730 fc->last_tlabel[dst] = new_tlabel; 1731 STAILQ_INSERT_TAIL(&fc->tlabels[new_tlabel], xfer, tlabel); 1732 mtx_unlock(&fc->tlabel_lock); 1733 splx(s); 1734 xfer->tl = new_tlabel; 1735 xfer->send.hdr.mode.hdr.tlrt = new_tlabel << 2; 1736 if (firewire_debug > 1) 1737 printf("fw_get_tlabel: dst=%d tl=%d\n", dst, new_tlabel); 1738 return (new_tlabel); 1739 } 1740 mtx_unlock(&fc->tlabel_lock); 1741 splx(s); 1742 1743 if (firewire_debug > 1) 1744 printf("fw_get_tlabel: no free tlabel\n"); 1745 return (-1); 1746} 1747 1748static void 1749fw_rcv_copy(struct fw_rcv_buf *rb) 1750{ 1751 struct fw_pkt *pkt; 1752 u_char *p; 1753 struct tcode_info *tinfo; 1754 u_int res, i, len, plen; 1755 1756 rb->xfer->recv.spd = rb->spd; 1757 1758 pkt = (struct fw_pkt *)rb->vec->iov_base; 1759 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1760 1761 /* Copy header */ 1762 p = (u_char *)&rb->xfer->recv.hdr; 1763 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1764 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1765 rb->vec->iov_len -= tinfo->hdr_len; 1766 1767 /* Copy payload */ 1768 p = (u_char *)rb->xfer->recv.payload; 1769 res = rb->xfer->recv.pay_len; 1770 1771 /* special handling for RRESQ */ 1772 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1773 p != NULL && res >= sizeof(uint32_t)) { 1774 *(uint32_t *)p = pkt->mode.rresq.data; 1775 rb->xfer->recv.pay_len = sizeof(uint32_t); 1776 return; 1777 } 1778 1779 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1780 return; 1781 1782 plen = pkt->mode.rresb.len; 1783 1784 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1785 len = MIN(rb->vec->iov_len, plen); 1786 if (res < len) { 1787 printf("rcv buffer(%d) is %d bytes short.\n", 1788 rb->xfer->recv.pay_len, len - res); 1789 len = res; 1790 } 1791 bcopy(rb->vec->iov_base, p, len); 1792 p += len; 1793 res -= len; 1794 plen -= len; 1795 if (res == 0 || plen == 0) 1796 break; 1797 } 1798 rb->xfer->recv.pay_len -= res; 1799 1800} 1801 1802/* 1803 * Generic packet receiving process. 1804 */ 1805void 1806fw_rcv(struct fw_rcv_buf *rb) 1807{ 1808 struct fw_pkt *fp, *resfp; 1809 struct fw_bind *bind; 1810 int tcode; 1811 int i, len, oldstate; 1812#if 0 1813 { 1814 uint32_t *qld; 1815 int i; 1816 qld = (uint32_t *)buf; 1817 printf("spd %d len:%d\n", spd, len); 1818 for( i = 0 ; i <= len && i < 32; i+= 4){ 1819 printf("0x%08x ", ntohl(qld[i/4])); 1820 if((i % 16) == 15) printf("\n"); 1821 } 1822 if((i % 16) != 15) printf("\n"); 1823 } 1824#endif 1825 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1826 tcode = fp->mode.common.tcode; 1827 switch (tcode) { 1828 case FWTCODE_WRES: 1829 case FWTCODE_RRESQ: 1830 case FWTCODE_RRESB: 1831 case FWTCODE_LRES: 1832 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1833 fp->mode.hdr.tlrt >> 2, fp->mode.hdr.tcode); 1834 if(rb->xfer == NULL) { 1835 printf("fw_rcv: unknown response " 1836 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1837 tcode_str[tcode], tcode, 1838 fp->mode.hdr.src, 1839 fp->mode.hdr.tlrt >> 2, 1840 fp->mode.hdr.tlrt & 3, 1841 fp->mode.rresq.data); 1842#if 0 1843 printf("try ad-hoc work around!!\n"); 1844 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1845 (fp->mode.hdr.tlrt >> 2)^3); 1846 if (rb->xfer == NULL) { 1847 printf("no use...\n"); 1848 return; 1849 } 1850#else 1851 return; 1852#endif 1853 } 1854 fw_rcv_copy(rb); 1855 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1856 rb->xfer->resp = EIO; 1857 else 1858 rb->xfer->resp = 0; 1859 /* make sure the packet is drained in AT queue */ 1860 oldstate = rb->xfer->flag; 1861 rb->xfer->flag = FWXF_RCVD; 1862 switch (oldstate) { 1863 case FWXF_SENT: 1864 fw_xfer_done(rb->xfer); 1865 break; 1866 case FWXF_START: 1867#if 0 1868 if (firewire_debug) 1869 printf("not sent yet tl=%x\n", rb->xfer->tl); 1870#endif 1871 break; 1872 default: 1873 printf("unexpected flag 0x%02x\n", rb->xfer->flag); 1874 } 1875 return; 1876 case FWTCODE_WREQQ: 1877 case FWTCODE_WREQB: 1878 case FWTCODE_RREQQ: 1879 case FWTCODE_RREQB: 1880 case FWTCODE_LREQ: 1881 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1882 fp->mode.rreqq.dest_lo); 1883 if(bind == NULL){ 1884 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1885#if defined(__DragonFly__) || __FreeBSD_version < 500000 1886 " src=0x%x data=%lx\n", 1887#else 1888 " src=0x%x data=%x\n", 1889#endif 1890 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1891 tcode_str[tcode], tcode, 1892 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1893 if (rb->fc->status == FWBUSINIT) { 1894 printf("fw_rcv: cannot respond(bus reset)!\n"); 1895 return; 1896 } 1897 rb->xfer = fw_xfer_alloc(M_FWXFER); 1898 if(rb->xfer == NULL){ 1899 return; 1900 } 1901 rb->xfer->send.spd = rb->spd; 1902 rb->xfer->send.pay_len = 0; 1903 resfp = &rb->xfer->send.hdr; 1904 switch (tcode) { 1905 case FWTCODE_WREQQ: 1906 case FWTCODE_WREQB: 1907 resfp->mode.hdr.tcode = FWTCODE_WRES; 1908 break; 1909 case FWTCODE_RREQQ: 1910 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1911 break; 1912 case FWTCODE_RREQB: 1913 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1914 break; 1915 case FWTCODE_LREQ: 1916 resfp->mode.hdr.tcode = FWTCODE_LRES; 1917 break; 1918 } 1919 resfp->mode.hdr.dst = fp->mode.hdr.src; 1920 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1921 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1922 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1923 resfp->mode.rresb.extcode = 0; 1924 resfp->mode.rresb.len = 0; 1925/* 1926 rb->xfer->hand = fw_xferwake; 1927*/ 1928 rb->xfer->hand = fw_xfer_free; 1929 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1930 fw_xfer_free(rb->xfer); 1931 return; 1932 } 1933 return; 1934 } 1935 len = 0; 1936 for (i = 0; i < rb->nvec; i ++) 1937 len += rb->vec[i].iov_len; 1938 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1939 if (rb->xfer == NULL) { 1940#if 1 1941 printf("Discard a packet for this bind.\n"); 1942#endif 1943 return; 1944 } 1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1946 fw_rcv_copy(rb); 1947 rb->xfer->hand(rb->xfer); 1948 return; 1949#if 0 /* shouldn't happen ?? or for GASP */ 1950 case FWTCODE_STREAM: 1951 { 1952 struct fw_xferq *xferq; 1953 1954 xferq = rb->fc->ir[sub]; 1955#if 0 1956 printf("stream rcv dma %d len %d off %d spd %d\n", 1957 sub, len, off, spd); 1958#endif 1959 if(xferq->queued >= xferq->maxq) { 1960 printf("receive queue is full\n"); 1961 return; 1962 } 1963 /* XXX get xfer from xfer queue, we don't need copy for 1964 per packet mode */ 1965 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1966 vec[0].iov_len); 1967 if (rb->xfer == NULL) 1968 return; 1969 fw_rcv_copy(rb) 1970 s = splfw(); 1971 xferq->queued++; 1972 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1973 splx(s); 1974 sc = device_get_softc(rb->fc->bdev); 1975#if defined(__DragonFly__) || __FreeBSD_version < 500000 1976 if (&xferq->rsel.si_pid != 0) 1977#else 1978 if (SEL_WAITING(&xferq->rsel)) 1979#endif 1980 selwakeuppri(&xferq->rsel, FWPRI); 1981 if (xferq->flag & FWXFERQ_WAKEUP) { 1982 xferq->flag &= ~FWXFERQ_WAKEUP; 1983 wakeup((caddr_t)xferq); 1984 } 1985 if (xferq->flag & FWXFERQ_HANDLER) { 1986 xferq->hand(xferq); 1987 } 1988 return; 1989 break; 1990 } 1991#endif 1992 default: 1993 printf("fw_rcv: unknow tcode %d\n", tcode); 1994 break; 1995 } 1996} 1997 1998/* 1999 * Post process for Bus Manager election process. 2000 */ 2001static void 2002fw_try_bmr_callback(struct fw_xfer *xfer) 2003{ 2004 struct firewire_comm *fc; 2005 int bmr; 2006 2007 if (xfer == NULL) 2008 return; 2009 fc = xfer->fc; 2010 if (xfer->resp != 0) 2011 goto error; 2012 if (xfer->recv.payload == NULL) 2013 goto error; 2014 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2015 goto error; 2016 2017 bmr = ntohl(xfer->recv.payload[0]); 2018 if (bmr == 0x3f) 2019 bmr = fc->nodeid; 2020 2021 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2022 fw_xfer_free_buf(xfer); 2023 fw_bmr(fc); 2024 return; 2025 2026error: 2027 device_printf(fc->bdev, "bus manager election failed\n"); 2028 fw_xfer_free_buf(xfer); 2029} 2030 2031 2032/* 2033 * To candidate Bus Manager election process. 2034 */ 2035static void 2036fw_try_bmr(void *arg) 2037{ 2038 struct fw_xfer *xfer; 2039 struct firewire_comm *fc = (struct firewire_comm *)arg; 2040 struct fw_pkt *fp; 2041 int err = 0; 2042 2043 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2044 if(xfer == NULL){ 2045 return; 2046 } 2047 xfer->send.spd = 0; 2048 fc->status = FWBUSMGRELECT; 2049 2050 fp = &xfer->send.hdr; 2051 fp->mode.lreq.dest_hi = 0xffff; 2052 fp->mode.lreq.tlrt = 0; 2053 fp->mode.lreq.tcode = FWTCODE_LREQ; 2054 fp->mode.lreq.pri = 0; 2055 fp->mode.lreq.src = 0; 2056 fp->mode.lreq.len = 8; 2057 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2058 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2059 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2060 xfer->send.payload[0] = htonl(0x3f); 2061 xfer->send.payload[1] = htonl(fc->nodeid); 2062 xfer->hand = fw_try_bmr_callback; 2063 2064 err = fw_asyreq(fc, -1, xfer); 2065 if(err){ 2066 fw_xfer_free_buf(xfer); 2067 return; 2068 } 2069 return; 2070} 2071 2072#ifdef FW_VMACCESS 2073/* 2074 * Software implementation for physical memory block access. 2075 * XXX:Too slow, usef for debug purpose only. 2076 */ 2077static void 2078fw_vmaccess(struct fw_xfer *xfer){ 2079 struct fw_pkt *rfp, *sfp = NULL; 2080 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2081 2082 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2083 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2084 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2085 if(xfer->resp != 0){ 2086 fw_xfer_free( xfer); 2087 return; 2088 } 2089 if(xfer->recv.buf == NULL){ 2090 fw_xfer_free( xfer); 2091 return; 2092 } 2093 rfp = (struct fw_pkt *)xfer->recv.buf; 2094 switch(rfp->mode.hdr.tcode){ 2095 /* XXX need fix for 64bit arch */ 2096 case FWTCODE_WREQB: 2097 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2098 xfer->send.len = 12; 2099 sfp = (struct fw_pkt *)xfer->send.buf; 2100 bcopy(rfp->mode.wreqb.payload, 2101 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2102 sfp->mode.wres.tcode = FWTCODE_WRES; 2103 sfp->mode.wres.rtcode = 0; 2104 break; 2105 case FWTCODE_WREQQ: 2106 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2107 xfer->send.len = 12; 2108 sfp->mode.wres.tcode = FWTCODE_WRES; 2109 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2110 sfp->mode.wres.rtcode = 0; 2111 break; 2112 case FWTCODE_RREQB: 2113 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2114 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2115 sfp = (struct fw_pkt *)xfer->send.buf; 2116 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2117 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2118 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2119 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2120 sfp->mode.rresb.rtcode = 0; 2121 sfp->mode.rresb.extcode = 0; 2122 break; 2123 case FWTCODE_RREQQ: 2124 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2125 xfer->send.len = 16; 2126 sfp = (struct fw_pkt *)xfer->send.buf; 2127 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2128 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2129 sfp->mode.rresb.rtcode = 0; 2130 break; 2131 default: 2132 fw_xfer_free( xfer); 2133 return; 2134 } 2135 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2136 xfer->dst = ntohs(rfp->mode.hdr.src); 2137 xfer->hand = fw_xfer_free; 2138 2139 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2140 sfp->mode.hdr.pri = 0; 2141 2142 fw_asyreq(xfer->fc, -1, xfer); 2143/**/ 2144 return; 2145} 2146#endif 2147 2148/* 2149 * CRC16 check-sum for IEEE1394 register blocks. 2150 */ 2151uint16_t 2152fw_crc16(uint32_t *ptr, uint32_t len){ 2153 uint32_t i, sum, crc = 0; 2154 int shift; 2155 len = (len + 3) & ~3; 2156 for(i = 0 ; i < len ; i+= 4){ 2157 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2158 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2159 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2160 } 2161 crc &= 0xffff; 2162 } 2163 return((uint16_t) crc); 2164} 2165 2166static int 2167fw_bmr(struct firewire_comm *fc) 2168{ 2169 struct fw_device fwdev; 2170 union fw_self_id *self_id; 2171 int cmstr; 2172 uint32_t quad; 2173 2174 /* Check to see if the current root node is cycle master capable */ 2175 self_id = fw_find_self_id(fc, fc->max_node); 2176 if (fc->max_node > 0) { 2177 /* XXX check cmc bit of businfo block rather than contender */ 2178 if (self_id->p0.link_active && self_id->p0.contender) 2179 cmstr = fc->max_node; 2180 else { 2181 device_printf(fc->bdev, 2182 "root node is not cycle master capable\n"); 2183 /* XXX shall we be the cycle master? */ 2184 cmstr = fc->nodeid; 2185 /* XXX need bus reset */ 2186 } 2187 } else 2188 cmstr = -1; 2189 2190 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2191 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2192 /* We are not the bus manager */ 2193 printf("\n"); 2194 return(0); 2195 } 2196 printf("(me)\n"); 2197 2198 /* Optimize gapcount */ 2199 if(fc->max_hop <= MAX_GAPHOP ) 2200 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2201 /* If we are the cycle master, nothing to do */ 2202 if (cmstr == fc->nodeid || cmstr == -1) 2203 return 0; 2204 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2205 bzero(&fwdev, sizeof(fwdev)); 2206 fwdev.fc = fc; 2207 fwdev.dst = cmstr; 2208 fwdev.speed = 0; 2209 fwdev.maxrec = 8; /* 512 */ 2210 fwdev.status = FWDEVINIT; 2211 /* Set cmstr bit on the cycle master */ 2212 quad = htonl(1 << 8); 2213 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2214 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2215 2216 return 0; 2217} 2218 2219int 2220fw_open_isodma(struct firewire_comm *fc, int tx) 2221{ 2222 struct fw_xferq **xferqa; 2223 struct fw_xferq *xferq; 2224 int i; 2225 2226 if (tx) 2227 xferqa = &fc->it[0]; 2228 else 2229 xferqa = &fc->ir[0]; 2230 2231 FW_GLOCK(fc); 2232 for (i = 0; i < fc->nisodma; i ++) { 2233 xferq = xferqa[i]; 2234 if ((xferq->flag & FWXFERQ_OPEN) == 0) { 2235 xferq->flag |= FWXFERQ_OPEN; 2236 break; 2237 } 2238 } 2239 if (i == fc->nisodma) { 2240 printf("no free dma channel (tx=%d)\n", tx); 2241 i = -1; 2242 } 2243 FW_GUNLOCK(fc); 2244 return (i); 2245} 2246 2247static int 2248fw_modevent(module_t mode, int type, void *data) 2249{ 2250 int err = 0; 2251#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2252 static eventhandler_tag fwdev_ehtag = NULL; 2253#endif 2254 2255 switch (type) { 2256 case MOD_LOAD: 2257#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2258 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2259 fwdev_clone, 0, 1000); 2260#endif 2261 break; 2262 case MOD_UNLOAD: 2263#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2264 if (fwdev_ehtag != NULL) 2265 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2266#endif 2267 break; 2268 case MOD_SHUTDOWN: 2269 break; 2270 default: 2271 return (EOPNOTSUPP); 2272 } 2273 return (err); 2274} 2275 2276 2277#ifdef __DragonFly__ 2278DECLARE_DUMMY_MODULE(firewire); 2279#endif 2280DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2281MODULE_VERSION(firewire, 1); 2282