firewire.c revision 120850
1139823Simp/* 2130407Sdfr * Copyright (c) 2003 Hidetoshi Shimokawa 3130407Sdfr * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4130407Sdfr * All rights reserved. 5130407Sdfr * 6130407Sdfr * Redistribution and use in source and binary forms, with or without 7130407Sdfr * modification, are permitted provided that the following conditions 8130407Sdfr * are met: 9130407Sdfr * 1. Redistributions of source code must retain the above copyright 10130407Sdfr * notice, this list of conditions and the following disclaimer. 11130407Sdfr * 2. Redistributions in binary form must reproduce the above copyright 12130407Sdfr * notice, this list of conditions and the following disclaimer in the 13130407Sdfr * documentation and/or other materials provided with the distribution. 14130407Sdfr * 3. All advertising materials mentioning features or use of this software 15130407Sdfr * must display the acknowledgement as bellow: 16130407Sdfr * 17130407Sdfr * This product includes software developed by K. Kobayashi and H. Shimokawa 18130407Sdfr * 19130407Sdfr * 4. The name of the author may not be used to endorse or promote products 20130407Sdfr * derived from this software without specific prior written permission. 21130407Sdfr * 22130407Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23130407Sdfr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24130407Sdfr * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25130407Sdfr * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26130407Sdfr * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27130407Sdfr * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28130407Sdfr * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29130407Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30130407Sdfr * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31130407Sdfr * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32130407Sdfr * POSSIBILITY OF SUCH DAMAGE. 33130407Sdfr * 34130407Sdfr * $FreeBSD: head/sys/dev/firewire/firewire.c 120850 2003-10-06 07:17:43Z simokawa $ 35130407Sdfr * 36130407Sdfr */ 37130407Sdfr 38130407Sdfr#include <sys/param.h> 39130407Sdfr#include <sys/systm.h> 40130407Sdfr#include <sys/types.h> 41147256Sbrooks 42130407Sdfr#include <sys/kernel.h> 43130407Sdfr#include <sys/malloc.h> 44130407Sdfr#include <sys/conf.h> 45130407Sdfr#include <sys/sysctl.h> 46257176Sglebius 47130407Sdfr#if __FreeBSD_version < 500000 48130407Sdfr#include <machine/clock.h> /* for DELAY() */ 49130407Sdfr#endif 50130407Sdfr 51130407Sdfr#include <sys/bus.h> /* used by smbus and newbus */ 52130407Sdfr#include <machine/bus.h> 53130407Sdfr 54186119Sqingli#include <dev/firewire/firewire.h> 55130407Sdfr#include <dev/firewire/firewirereg.h> 56130407Sdfr#include <dev/firewire/fwmem.h> 57130407Sdfr#include <dev/firewire/iec13213.h> 58130407Sdfr#include <dev/firewire/iec68113.h> 59130407Sdfr 60130407Sdfrstruct crom_src_buf { 61130407Sdfr struct crom_src src; 62130407Sdfr struct crom_chunk root; 63130407Sdfr struct crom_chunk vendor; 64130407Sdfr struct crom_chunk hw; 65163606Srwatson}; 66163606Srwatson 67227293Sedint firewire_debug=0, try_bmr=1, hold_count=3; 68147256SbrooksSYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 69130407Sdfr "FireWire driver debug flag"); 70130407SdfrSYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 71130407SdfrSYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 72130407Sdfr "Try to be a bus manager"); 73130407SdfrSYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 74130407Sdfr "Number of count of bus resets for removing lost device information"); 75130407Sdfr 76130407SdfrMALLOC_DEFINE(M_FW, "firewire", "FireWire"); 77130407SdfrMALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 78130407Sdfr 79249925Sglebius#define FW_MAXASYRTY 4 80191148Skmacy 81130407Sdfrdevclass_t firewire_devclass; 82154209Sbrooks 83130407Sdfrstatic int firewire_match __P((device_t)); 84130407Sdfrstatic int firewire_attach __P((device_t)); 85130407Sdfrstatic int firewire_detach __P((device_t)); 86130407Sdfrstatic int firewire_resume __P((device_t)); 87130407Sdfr#if 0 88130407Sdfrstatic int firewire_shutdown __P((device_t)); 89130407Sdfr#endif 90130407Sdfrstatic device_t firewire_add_child __P((device_t, int, const char *, int)); 91130407Sdfrstatic void fw_try_bmr __P((void *)); 92287861Smelifarostatic void fw_try_bmr_callback __P((struct fw_xfer *)); 93287861Smelifarostatic void fw_asystart __P((struct fw_xfer *)); 94275211Sbzstatic int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 95130407Sdfrstatic void fw_bus_probe __P((struct firewire_comm *)); 96130429Sdfrstatic void fw_bus_explore __P((struct firewire_comm *)); 97172930Srwatsonstatic void fw_bus_explore_callback __P((struct fw_xfer *)); 98130429Sdfrstatic void fw_attach_dev __P((struct firewire_comm *)); 99130429Sdfr#ifdef FW_VMACCESS 100130429Sdfrstatic void fw_vmaccess __P((struct fw_xfer *)); 101130429Sdfr#endif 102148887Srwatsonstruct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 103148887Srwatson u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 104130407Sdfrstatic int fw_bmr __P((struct firewire_comm *)); 105130407Sdfr 106130407Sdfrstatic device_method_t firewire_methods[] = { 107130407Sdfr /* Device interface */ 108287861Smelifaro DEVMETHOD(device_probe, firewire_match), 109293544Smelifaro DEVMETHOD(device_attach, firewire_attach), 110293544Smelifaro DEVMETHOD(device_detach, firewire_detach), 111287861Smelifaro DEVMETHOD(device_suspend, bus_generic_suspend), 112130407Sdfr DEVMETHOD(device_resume, firewire_resume), 113130407Sdfr DEVMETHOD(device_shutdown, bus_generic_shutdown), 114130407Sdfr 115130407Sdfr /* Bus interface */ 116130407Sdfr DEVMETHOD(bus_add_child, firewire_add_child), 117130407Sdfr DEVMETHOD(bus_print_child, bus_generic_print_child), 118130407Sdfr 119130407Sdfr { 0, 0 } 120130407Sdfr}; 121130407Sdfrchar linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 122130407Sdfr 123130407Sdfr/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 124130407Sdfr#define MAX_GAPHOP 15 125130407Sdfru_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 126130407Sdfr 21, 24, 26, 29, 32, 35, 37, 40}; 127130407Sdfr 128130407Sdfrstatic driver_t firewire_driver = { 129130407Sdfr "firewire", 130130407Sdfr firewire_methods, 131130407Sdfr sizeof(struct firewire_softc), 132130407Sdfr}; 133130407Sdfr 134130407Sdfr/* 135298075Spfg * Lookup fwdev by node id. 136130407Sdfr */ 137130407Sdfrstruct fw_device * 138130407Sdfrfw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 139184711Sbz{ 140130407Sdfr struct fw_device *fwdev; 141130407Sdfr int s; 142130407Sdfr 143130407Sdfr s = splfw(); 144130407Sdfr STAILQ_FOREACH(fwdev, &fc->devices, link) 145130407Sdfr if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 146130407Sdfr break; 147301217Sgnn splx(s); 148301217Sgnn 149130407Sdfr return fwdev; 150130407Sdfr} 151130407Sdfr 152130407Sdfr/* 153130407Sdfr * Lookup fwdev by EUI64. 154130407Sdfr */ 155130407Sdfrstruct fw_device * 156130407Sdfrfw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 157130407Sdfr{ 158130407Sdfr struct fw_device *fwdev; 159130407Sdfr int s; 160130407Sdfr 161130407Sdfr s = splfw(); 162130407Sdfr STAILQ_FOREACH(fwdev, &fc->devices, link) 163130407Sdfr if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 164130407Sdfr break; 165130407Sdfr splx(s); 166130407Sdfr 167130407Sdfr if(fwdev == NULL) return NULL; 168130407Sdfr if(fwdev->status == FWDEVINVAL) return NULL; 169130407Sdfr return fwdev; 170130407Sdfr} 171130407Sdfr 172130407Sdfr/* 173130407Sdfr * Async. request procedure for userland application. 174130407Sdfr */ 175130407Sdfrint 176130407Sdfrfw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 177287861Smelifaro{ 178301217Sgnn int err = 0; 179130407Sdfr struct fw_xferq *xferq; 180287861Smelifaro int tl = 0, len; 181130407Sdfr struct fw_pkt *fp; 182130407Sdfr int tcode; 183130407Sdfr struct tcode_info *info; 184130407Sdfr 185130407Sdfr if(xfer == NULL) return EINVAL; 186130407Sdfr if(xfer->act.hand == NULL){ 187130407Sdfr printf("act.hand == NULL\n"); 188130407Sdfr return EINVAL; 189130407Sdfr } 190130407Sdfr fp = &xfer->send.hdr; 191130407Sdfr 192130407Sdfr tcode = fp->mode.common.tcode & 0xf; 193130407Sdfr info = &fc->tcode[tcode]; 194130407Sdfr if (info->flag == 0) { 195159183Ssam printf("invalid tcode=%d\n", tcode); 196130407Sdfr return EINVAL; 197130407Sdfr } 198130407Sdfr if (info->flag & FWTI_REQ) 199130407Sdfr xferq = fc->atq; 200130407Sdfr else 201130407Sdfr xferq = fc->ats; 202130407Sdfr len = info->hdr_len; 203130407Sdfr if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 204130407Sdfr printf("send.pay_len > maxrec\n"); 205130407Sdfr return EINVAL; 206130407Sdfr } 207130407Sdfr if (info->flag & FWTI_BLOCK_STR) 208130407Sdfr len = fp->mode.stream.len; 209130407Sdfr else if (info->flag & FWTI_BLOCK_ASY) 210130407Sdfr len = fp->mode.rresb.len; 211130407Sdfr else 212130407Sdfr len = 0; 213130407Sdfr if (len != xfer->send.pay_len){ 214130407Sdfr printf("len(%d) != send.pay_len(%d) (tcode=%d)\n", 215130407Sdfr len, xfer->send.pay_len, tcode); 216130407Sdfr return EINVAL; 217130407Sdfr } 218130407Sdfr 219130407Sdfr if(xferq->start == NULL){ 220130407Sdfr printf("xferq->start == NULL\n"); 221130407Sdfr return EINVAL; 222130407Sdfr } 223130407Sdfr if(!(xferq->queued < xferq->maxq)){ 224130407Sdfr device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 225130407Sdfr xferq->queued); 226130407Sdfr return EINVAL; 227130407Sdfr } 228130407Sdfr 229130407Sdfr microtime(&xfer->tv); 230130407Sdfr if (info->flag & FWTI_TLABEL) { 231130407Sdfr if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 232130407Sdfr return EIO; 233130407Sdfr fp->mode.hdr.tlrt = tl << 2; 234130407Sdfr } 235130407Sdfr 236130407Sdfr xfer->tl = tl; 237130407Sdfr xfer->resp = 0; 238243882Sglebius xfer->fc = fc; 239130407Sdfr xfer->q = xferq; 240130407Sdfr xfer->retry_req = fw_asybusy; 241130407Sdfr 242130407Sdfr fw_asystart(xfer); 243130407Sdfr return err; 244130407Sdfr} 245130407Sdfr/* 246144114Sgallatin * Wakeup blocked process. 247130407Sdfr */ 248130407Sdfrvoid 249130407Sdfrfw_asy_callback(struct fw_xfer *xfer){ 250130407Sdfr wakeup(xfer); 251130407Sdfr return; 252130407Sdfr} 253185164Skmacy/* 254130549Smlaier * Postpone to later retry. 255130407Sdfr */ 256130407Sdfrvoid fw_asybusy(struct fw_xfer *xfer){ 257130407Sdfr printf("fw_asybusy\n"); 258130407Sdfr/* 259130407Sdfr xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 260130407Sdfr*/ 261130407Sdfr DELAY(20000); 262130407Sdfr fw_asystart(xfer); 263130407Sdfr return; 264130407Sdfr} 265130407Sdfr 266130407Sdfr/* 267130407Sdfr * Async. request with given xfer structure. 268130407Sdfr */ 269130407Sdfrstatic void 270243882Sglebiusfw_asystart(struct fw_xfer *xfer) 271130407Sdfr{ 272130407Sdfr struct firewire_comm *fc = xfer->fc; 273298075Spfg int s; 274130407Sdfr if(xfer->retry++ >= fc->max_asyretry){ 275130407Sdfr device_printf(fc->bdev, "max_asyretry exceeded\n"); 276130407Sdfr xfer->resp = EBUSY; 277130407Sdfr xfer->state = FWXF_BUSY; 278130407Sdfr xfer->act.hand(xfer); 279130407Sdfr return; 280243882Sglebius } 281130407Sdfr#if 0 /* XXX allow bus explore packets only after bus rest */ 282130407Sdfr if (fc->status < FWBUSEXPLORE) { 283130407Sdfr xfer->resp = EAGAIN; 284130407Sdfr xfer->state = FWXF_BUSY; 285130407Sdfr if (xfer->act.hand != NULL) 286130407Sdfr xfer->act.hand(xfer); 287130407Sdfr return; 288144114Sgallatin } 289144114Sgallatin#endif 290130407Sdfr s = splfw(); 291130407Sdfr xfer->state = FWXF_INQ; 292130407Sdfr STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 293130407Sdfr xfer->q->queued ++; 294130407Sdfr splx(s); 295130407Sdfr /* XXX just queue for mbuf */ 296130407Sdfr if (xfer->mbuf == NULL) 297130407Sdfr xfer->q->start(fc); 298144114Sgallatin return; 299144114Sgallatin} 300144114Sgallatin 301130407Sdfrstatic int 302130407Sdfrfirewire_match( device_t dev ) 303130407Sdfr{ 304130407Sdfr device_set_desc(dev, "IEEE1394(FireWire) bus"); 305130407Sdfr return -140; 306130407Sdfr} 307130407Sdfr 308130407Sdfrstatic void 309130407Sdfrfirewire_xfer_timeout(struct firewire_comm *fc) 310130407Sdfr{ 311130407Sdfr struct fw_xfer *xfer; 312130407Sdfr struct tlabel *tl; 313185164Skmacy struct timeval tv; 314130549Smlaier struct timeval split_timeout; 315130407Sdfr int i, s; 316130407Sdfr 317130407Sdfr split_timeout.tv_sec = 0; 318130407Sdfr split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 319130407Sdfr 320130407Sdfr microtime(&tv); 321130407Sdfr timevalsub(&tv, &split_timeout); 322130407Sdfr 323130407Sdfr s = splfw(); 324130407Sdfr for (i = 0; i < 0x40; i ++) { 325130407Sdfr while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 326130407Sdfr xfer = tl->xfer; 327130407Sdfr if (timevalcmp(&xfer->tv, &tv, >)) 328130407Sdfr /* the rests are newer than this */ 329130407Sdfr break; 330130407Sdfr device_printf(fc->bdev, 331130407Sdfr "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 332130407Sdfr xfer->send.hdr.mode.hdr.dst, i, xfer->state); 333130407Sdfr xfer->resp = ETIMEDOUT; 334130407Sdfr STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 335130407Sdfr fw_xfer_done(xfer); 336130407Sdfr } 337130407Sdfr } 338130407Sdfr splx(s); 339130407Sdfr} 340130407Sdfr 341130407Sdfrstatic void 342130407Sdfrfirewire_watchdog(void *arg) 343130407Sdfr{ 344130407Sdfr struct firewire_comm *fc; 345130407Sdfr 346130407Sdfr fc = (struct firewire_comm *)arg; 347130407Sdfr firewire_xfer_timeout(fc); 348130407Sdfr fc->timeout(fc); 349130407Sdfr callout_reset(&fc->timeout_callout, hz / 10, 350130407Sdfr (void *)firewire_watchdog, (void *)fc); 351130407Sdfr} 352130407Sdfr 353130407Sdfr/* 354130407Sdfr * The attach routine. 355130407Sdfr */ 356130407Sdfrstatic int 357130407Sdfrfirewire_attach(device_t dev) 358130407Sdfr{ 359130407Sdfr int unit; 360130407Sdfr struct firewire_softc *sc = device_get_softc(dev); 361130407Sdfr device_t pa = device_get_parent(dev); 362130407Sdfr struct firewire_comm *fc; 363130407Sdfr 364130407Sdfr fc = (struct firewire_comm *)device_get_softc(pa); 365130407Sdfr sc->fc = fc; 366130407Sdfr fc->status = FWBUSNOTREADY; 367130407Sdfr 368130407Sdfr unit = device_get_unit(dev); 369130407Sdfr if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 370130407Sdfr 371130407Sdfr fwdev_makedev(sc); 372130407Sdfr 373130407Sdfr CALLOUT_INIT(&sc->fc->timeout_callout); 374130407Sdfr CALLOUT_INIT(&sc->fc->bmr_callout); 375130407Sdfr CALLOUT_INIT(&sc->fc->retry_probe_callout); 376130407Sdfr CALLOUT_INIT(&sc->fc->busprobe_callout); 377130407Sdfr 378130407Sdfr callout_reset(&sc->fc->timeout_callout, hz, 379130407Sdfr (void *)firewire_watchdog, (void *)sc->fc); 380130407Sdfr 381130407Sdfr /* Locate our children */ 382130407Sdfr bus_generic_probe(dev); 383130407Sdfr 384130407Sdfr /* launch attachement of the added children */ 385130407Sdfr bus_generic_attach(dev); 386130407Sdfr 387130407Sdfr /* bus_reset */ 388130407Sdfr fc->ibr(fc); 389130407Sdfr 390130407Sdfr return 0; 391130407Sdfr} 392130407Sdfr 393130407Sdfr/* 394130407Sdfr * Attach it as child. 395130407Sdfr */ 396130407Sdfrstatic device_t 397130407Sdfrfirewire_add_child(device_t dev, int order, const char *name, int unit) 398130407Sdfr{ 399130407Sdfr device_t child; 400130407Sdfr struct firewire_softc *sc; 401130407Sdfr 402130407Sdfr sc = (struct firewire_softc *)device_get_softc(dev); 403130407Sdfr child = device_add_child(dev, name, unit); 404130407Sdfr if (child) { 405130407Sdfr device_set_ivars(child, sc->fc); 406130407Sdfr device_probe_and_attach(child); 407130407Sdfr } 408130407Sdfr 409130407Sdfr return child; 410130407Sdfr} 411130407Sdfr 412130407Sdfrstatic int 413130407Sdfrfirewire_resume(device_t dev) 414130407Sdfr{ 415130407Sdfr struct firewire_softc *sc; 416130407Sdfr 417130407Sdfr sc = (struct firewire_softc *)device_get_softc(dev); 418130407Sdfr sc->fc->status = FWBUSNOTREADY; 419130407Sdfr 420130407Sdfr bus_generic_resume(dev); 421130407Sdfr 422130407Sdfr return(0); 423130407Sdfr} 424130407Sdfr 425130407Sdfr/* 426130407Sdfr * Dettach it. 427130407Sdfr */ 428130407Sdfrstatic int 429130407Sdfrfirewire_detach(device_t dev) 430130407Sdfr{ 431130407Sdfr struct firewire_softc *sc; 432130407Sdfr struct csrdir *csrd, *next; 433130407Sdfr struct fw_device *fwdev, *fwdev_next; 434130407Sdfr int err; 435130407Sdfr 436130407Sdfr sc = (struct firewire_softc *)device_get_softc(dev); 437130407Sdfr if ((err = fwdev_destroydev(sc)) != 0) 438130407Sdfr return err; 439130407Sdfr 440130407Sdfr if ((err = bus_generic_detach(dev)) != 0) 441130407Sdfr return err; 442130407Sdfr 443130407Sdfr callout_stop(&sc->fc->timeout_callout); 444130407Sdfr callout_stop(&sc->fc->bmr_callout); 445130407Sdfr callout_stop(&sc->fc->retry_probe_callout); 446130407Sdfr callout_stop(&sc->fc->busprobe_callout); 447130407Sdfr 448130407Sdfr /* XXX xfree_free and untimeout on all xfers */ 449130407Sdfr for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 450130407Sdfr fwdev = fwdev_next) { 451130407Sdfr fwdev_next = STAILQ_NEXT(fwdev, link); 452130407Sdfr free(fwdev, M_FW); 453130407Sdfr } 454130407Sdfr for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 455130407Sdfr next = SLIST_NEXT(csrd, link); 456130407Sdfr free(csrd, M_FW); 457130407Sdfr } 458130407Sdfr free(sc->fc->topology_map, M_FW); 459130407Sdfr free(sc->fc->speed_map, M_FW); 460130407Sdfr free(sc->fc->crom_src_buf, M_FW); 461130407Sdfr return(0); 462130407Sdfr} 463130407Sdfr#if 0 464130407Sdfrstatic int 465130407Sdfrfirewire_shutdown( device_t dev ) 466130407Sdfr{ 467130407Sdfr return 0; 468130407Sdfr} 469130407Sdfr#endif 470130407Sdfr 471130407Sdfr 472130407Sdfrstatic void 473130407Sdfrfw_xferq_drain(struct fw_xferq *xferq) 474130407Sdfr{ 475130407Sdfr struct fw_xfer *xfer; 476130407Sdfr 477130407Sdfr while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 478130407Sdfr STAILQ_REMOVE_HEAD(&xferq->q, link); 479130407Sdfr xferq->queued --; 480130407Sdfr xfer->resp = EAGAIN; 481130407Sdfr fw_xfer_done(xfer); 482130407Sdfr } 483130407Sdfr} 484130407Sdfr 485130407Sdfrvoid 486130407Sdfrfw_drain_txq(struct firewire_comm *fc) 487130407Sdfr{ 488130407Sdfr int i; 489130407Sdfr 490130407Sdfr fw_xferq_drain(fc->atq); 491130407Sdfr fw_xferq_drain(fc->ats); 492130407Sdfr for(i = 0; i < fc->nisodma; i++) 493130407Sdfr fw_xferq_drain(fc->it[i]); 494130407Sdfr} 495130407Sdfr 496130407Sdfrstatic void 497130407Sdfrfw_reset_csr(struct firewire_comm *fc) 498130407Sdfr{ 499130407Sdfr int i; 500154209Sbrooks 501130407Sdfr CSRARC(fc, STATE_CLEAR) 502130407Sdfr = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 503130407Sdfr CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 504130407Sdfr CSRARC(fc, NODE_IDS) = 0x3f; 505130407Sdfr 506130407Sdfr CSRARC(fc, TOPO_MAP + 8) = 0; 507130407Sdfr fc->irm = -1; 508130407Sdfr 509130407Sdfr fc->max_node = -1; 510130407Sdfr 511130407Sdfr for(i = 2; i < 0x100/4 - 2 ; i++){ 512130407Sdfr CSRARC(fc, SPED_MAP + i * 4) = 0; 513130407Sdfr } 514130407Sdfr CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 515130407Sdfr CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 516130407Sdfr CSRARC(fc, RESET_START) = 0; 517169735Srwatson CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 518169735Srwatson CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 519130407Sdfr CSRARC(fc, CYCLE_TIME) = 0x0; 520130407Sdfr CSRARC(fc, BUS_TIME) = 0x0; 521130407Sdfr CSRARC(fc, BUS_MGR_ID) = 0x3f; 522130407Sdfr CSRARC(fc, BANDWIDTH_AV) = 4915; 523130407Sdfr CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 524151265Simp CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 525130407Sdfr CSRARC(fc, IP_CHANNELS) = (1 << 31); 526130407Sdfr 527130407Sdfr CSRARC(fc, CONF_ROM) = 0x04 << 24; 528130407Sdfr CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 529130407Sdfr CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 530130407Sdfr 1 << 28 | 0xff << 16 | 0x09 << 8; 531151265Simp CSRARC(fc, CONF_ROM + 0xc) = 0; 532130407Sdfr 533130407Sdfr/* DV depend CSRs see blue book */ 534130407Sdfr CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 535130407Sdfr CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 536130407Sdfr 537130407Sdfr CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 538130407Sdfr CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 539130407Sdfr} 540130407Sdfr 541130407Sdfrstatic void 542130407Sdfrfw_init_crom(struct firewire_comm *fc) 543130407Sdfr{ 544130407Sdfr struct crom_src *src; 545271867Sglebius 546130407Sdfr fc->crom_src_buf = (struct crom_src_buf *) 547130407Sdfr malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 548130407Sdfr if (fc->crom_src_buf == NULL) 549130407Sdfr return; 550130407Sdfr 551130407Sdfr src = &fc->crom_src_buf->src; 552130407Sdfr bzero(src, sizeof(struct crom_src)); 553130407Sdfr 554130407Sdfr /* BUS info sample */ 555130407Sdfr src->hdr.info_len = 4; 556130407Sdfr 557130407Sdfr src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 558130407Sdfr 559130407Sdfr src->businfo.irmc = 1; 560130407Sdfr src->businfo.cmc = 1; 561172930Srwatson src->businfo.isc = 1; 562130407Sdfr src->businfo.bmc = 1; 563130407Sdfr src->businfo.pmc = 0; 564130407Sdfr src->businfo.cyc_clk_acc = 100; 565130407Sdfr src->businfo.max_rec = fc->maxrec; 566130407Sdfr src->businfo.max_rom = MAXROM_4; 567130407Sdfr src->businfo.generation = 1; 568159183Ssam src->businfo.link_spd = fc->speed; 569130407Sdfr 570130407Sdfr src->businfo.eui64.hi = fc->eui.hi; 571130407Sdfr src->businfo.eui64.lo = fc->eui.lo; 572130407Sdfr 573130407Sdfr STAILQ_INIT(&src->chunk_list); 574130407Sdfr 575130407Sdfr fc->crom_src = src; 576130407Sdfr fc->crom_root = &fc->crom_src_buf->root; 577130407Sdfr} 578130407Sdfr 579130407Sdfrstatic void 580130407Sdfrfw_reset_crom(struct firewire_comm *fc) 581130407Sdfr{ 582130407Sdfr struct crom_src_buf *buf; 583130407Sdfr struct crom_src *src; 584130407Sdfr struct crom_chunk *root; 585130407Sdfr 586130407Sdfr if (fc->crom_src_buf == NULL) 587130407Sdfr fw_init_crom(fc); 588130407Sdfr 589130407Sdfr buf = fc->crom_src_buf; 590271867Sglebius src = fc->crom_src; 591130407Sdfr root = fc->crom_root; 592130407Sdfr 593130407Sdfr STAILQ_INIT(&src->chunk_list); 594130407Sdfr 595130407Sdfr bzero(root, sizeof(struct crom_chunk)); 596130407Sdfr crom_add_chunk(src, NULL, root, 0); 597130407Sdfr crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 598130407Sdfr /* private company_id */ 599271867Sglebius crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 600130407Sdfr crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 601130407Sdfr crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 602130407Sdfr crom_add_simple_text(src, root, &buf->hw, hostname); 603130407Sdfr} 604130407Sdfr 605130407Sdfr/* 606130407Sdfr * Called after bus reset. 607130407Sdfr */ 608130407Sdfrvoid 609130407Sdfrfw_busreset(struct firewire_comm *fc) 610130407Sdfr{ 611130407Sdfr struct firewire_dev_comm *fdc; 612130407Sdfr struct crom_src *src; 613130407Sdfr device_t *devlistp; 614130407Sdfr void *newrom; 615130407Sdfr int i, devcnt; 616130407Sdfr 617130407Sdfr switch(fc->status){ 618130407Sdfr case FWBUSMGRELECT: 619130407Sdfr callout_stop(&fc->bmr_callout); 620130407Sdfr break; 621130407Sdfr default: 622130407Sdfr break; 623130407Sdfr } 624130407Sdfr fc->status = FWBUSRESET; 625130407Sdfr fw_reset_csr(fc); 626130407Sdfr fw_reset_crom(fc); 627130407Sdfr 628130407Sdfr if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 629130407Sdfr for( i = 0 ; i < devcnt ; i++) 630130407Sdfr if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 631130407Sdfr fdc = device_get_softc(devlistp[i]); 632130407Sdfr if (fdc->post_busreset != NULL) 633130407Sdfr fdc->post_busreset(fdc); 634223741Sbz } 635130407Sdfr free(devlistp, M_TEMP); 636130407Sdfr } 637130407Sdfr 638130407Sdfr newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 639194581Srdivacky src = &fc->crom_src_buf->src; 640130407Sdfr crom_load(src, (u_int32_t *)newrom, CROMSIZE); 641130407Sdfr if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 642130407Sdfr /* bump generation and reload */ 643130407Sdfr src->businfo.generation ++; 644130407Sdfr /* generation must be between 0x2 and 0xF */ 645130407Sdfr if (src->businfo.generation < 2) 646130407Sdfr src->businfo.generation ++; 647130407Sdfr crom_load(src, (u_int32_t *)newrom, CROMSIZE); 648130407Sdfr bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 649130407Sdfr } 650130407Sdfr free(newrom, M_FW); 651130407Sdfr} 652130407Sdfr 653130407Sdfr/* Call once after reboot */ 654130407Sdfrvoid fw_init(struct firewire_comm *fc) 655130407Sdfr{ 656130407Sdfr int i; 657130407Sdfr struct csrdir *csrd; 658130407Sdfr#ifdef FW_VMACCESS 659130407Sdfr struct fw_xfer *xfer; 660130407Sdfr struct fw_bind *fwb; 661130407Sdfr#endif 662130407Sdfr 663130407Sdfr fc->max_asyretry = FW_MAXASYRTY; 664130407Sdfr 665130407Sdfr fc->arq->queued = 0; 666130407Sdfr fc->ars->queued = 0; 667154209Sbrooks fc->atq->queued = 0; 668130407Sdfr fc->ats->queued = 0; 669130407Sdfr 670130407Sdfr fc->arq->buf = NULL; 671130407Sdfr fc->ars->buf = NULL; 672130407Sdfr fc->atq->buf = NULL; 673130407Sdfr fc->ats->buf = NULL; 674130407Sdfr 675130407Sdfr fc->arq->flag = 0; 676130407Sdfr fc->ars->flag = 0; 677130407Sdfr fc->atq->flag = 0; 678130407Sdfr fc->ats->flag = 0; 679130407Sdfr 680130407Sdfr STAILQ_INIT(&fc->atq->q); 681130407Sdfr STAILQ_INIT(&fc->ats->q); 682130407Sdfr 683130407Sdfr for( i = 0 ; i < fc->nisodma ; i ++ ){ 684130407Sdfr fc->it[i]->queued = 0; 685130407Sdfr fc->ir[i]->queued = 0; 686130407Sdfr 687130407Sdfr fc->it[i]->start = NULL; 688130407Sdfr fc->ir[i]->start = NULL; 689130407Sdfr 690130407Sdfr fc->it[i]->buf = NULL; 691130407Sdfr fc->ir[i]->buf = NULL; 692130407Sdfr 693130407Sdfr fc->it[i]->flag = FWXFERQ_STREAM; 694130407Sdfr fc->ir[i]->flag = FWXFERQ_STREAM; 695130407Sdfr 696130407Sdfr STAILQ_INIT(&fc->it[i]->q); 697130407Sdfr STAILQ_INIT(&fc->ir[i]->q); 698130407Sdfr 699130407Sdfr STAILQ_INIT(&fc->it[i]->binds); 700130407Sdfr STAILQ_INIT(&fc->ir[i]->binds); 701130407Sdfr } 702130407Sdfr 703130407Sdfr fc->arq->maxq = FWMAXQUEUE; 704130407Sdfr fc->ars->maxq = FWMAXQUEUE; 705298075Spfg fc->atq->maxq = FWMAXQUEUE; 706130407Sdfr fc->ats->maxq = FWMAXQUEUE; 707130407Sdfr 708130407Sdfr for( i = 0 ; i < fc->nisodma ; i++){ 709130407Sdfr fc->ir[i]->maxq = FWMAXQUEUE; 710130407Sdfr fc->it[i]->maxq = FWMAXQUEUE; 711130407Sdfr } 712130407Sdfr/* Initialize csr registers */ 713298075Spfg fc->topology_map = (struct fw_topology_map *)malloc( 714130407Sdfr sizeof(struct fw_topology_map), 715130407Sdfr M_FW, M_NOWAIT | M_ZERO); 716130407Sdfr fc->speed_map = (struct fw_speed_map *)malloc( 717130407Sdfr sizeof(struct fw_speed_map), 718130407Sdfr M_FW, M_NOWAIT | M_ZERO); 719130407Sdfr CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 720130407Sdfr CSRARC(fc, TOPO_MAP + 4) = 1; 721130407Sdfr CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 722130407Sdfr CSRARC(fc, SPED_MAP + 4) = 1; 723130407Sdfr 724130407Sdfr STAILQ_INIT(&fc->devices); 725130407Sdfr STAILQ_INIT(&fc->pending); 726298075Spfg 727130407Sdfr/* Initialize csr ROM work space */ 728130407Sdfr SLIST_INIT(&fc->ongocsr); 729130407Sdfr SLIST_INIT(&fc->csrfree); 730130407Sdfr for( i = 0 ; i < FWMAXCSRDIR ; i++){ 731298075Spfg csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 732130407Sdfr if(csrd == NULL) break; 733130407Sdfr SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 734130407Sdfr } 735130407Sdfr 736130407Sdfr/* Initialize Async handlers */ 737130407Sdfr STAILQ_INIT(&fc->binds); 738130407Sdfr for( i = 0 ; i < 0x40 ; i++){ 739130407Sdfr STAILQ_INIT(&fc->tlabels[i]); 740130407Sdfr } 741130407Sdfr 742130407Sdfr/* DV depend CSRs see blue book */ 743130407Sdfr#if 0 744130407Sdfr CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 745130407Sdfr CSRARC(fc, oPCR) = 0x8000007a; 746130407Sdfr for(i = 4 ; i < 0x7c/4 ; i+=4){ 747154209Sbrooks CSRARC(fc, i + oPCR) = 0x8000007a; 748130407Sdfr } 749130407Sdfr 750130407Sdfr CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 751130407Sdfr CSRARC(fc, iPCR) = 0x803f0000; 752130407Sdfr for(i = 4 ; i < 0x7c/4 ; i+=4){ 753130407Sdfr CSRARC(fc, i + iPCR) = 0x0; 754130407Sdfr } 755130407Sdfr#endif 756130407Sdfr 757130407Sdfr fc->crom_src_buf = NULL; 758130407Sdfr 759130407Sdfr#ifdef FW_VMACCESS 760130407Sdfr xfer = fw_xfer_alloc(); 761130407Sdfr if(xfer == NULL) return; 762130407Sdfr 763130407Sdfr fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 764130407Sdfr if(fwb == NULL){ 765130407Sdfr fw_xfer_free(xfer); 766152315Sru } 767130407Sdfr xfer->act.hand = fw_vmaccess; 768130407Sdfr xfer->fc = fc; 769130407Sdfr xfer->sc = NULL; 770130407Sdfr 771130407Sdfr fwb->start_hi = 0x2; 772130407Sdfr fwb->start_lo = 0; 773130407Sdfr fwb->addrlen = 0xffffffff; 774130407Sdfr fwb->xfer = xfer; 775130407Sdfr fw_bindadd(fc, fwb); 776130407Sdfr#endif 777130407Sdfr} 778130407Sdfr 779130407Sdfr#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 780130407Sdfr ((fwb)->end < (addr))?1:0) 781130407Sdfr 782130407Sdfr/* 783130407Sdfr * To lookup binded process from IEEE1394 address. 784130407Sdfr */ 785130407Sdfrstruct fw_bind * 786130407Sdfrfw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 787130407Sdfr{ 788130407Sdfr u_int64_t addr; 789130407Sdfr struct fw_bind *tfw; 790130407Sdfr 791130407Sdfr addr = ((u_int64_t)dest_hi << 32) | dest_lo; 792130407Sdfr STAILQ_FOREACH(tfw, &fc->binds, fclist) 793130407Sdfr if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 794154209Sbrooks return(tfw); 795130407Sdfr return(NULL); 796130407Sdfr} 797130407Sdfr 798130407Sdfr/* 799130407Sdfr * To bind IEEE1394 address block to process. 800130407Sdfr */ 801130407Sdfrint 802130407Sdfrfw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 803130407Sdfr{ 804130407Sdfr struct fw_bind *tfw, *prev = NULL; 805130407Sdfr 806130407Sdfr if (fwb->start > fwb->end) { 807130407Sdfr printf("%s: invalid range\n", __FUNCTION__); 808130407Sdfr return EINVAL; 809130407Sdfr } 810130407Sdfr 811147256Sbrooks STAILQ_FOREACH(tfw, &fc->binds, fclist) { 812147256Sbrooks if (fwb->end < tfw->start) 813147256Sbrooks break; 814147256Sbrooks prev = tfw; 815147256Sbrooks } 816147256Sbrooks if (prev == NULL) { 817147256Sbrooks STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 818147256Sbrooks goto out; 819147256Sbrooks } 820147256Sbrooks if (prev->end < fwb->start) { 821147256Sbrooks STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 822147256Sbrooks goto out; 823147256Sbrooks } 824147256Sbrooks 825147256Sbrooks printf("%s: bind failed\n", __FUNCTION__); 826147256Sbrooks return (EBUSY); 827147256Sbrooks 828147256Sbrooksout: 829147256Sbrooks if (fwb->act_type == FWACT_CH) 830147256Sbrooks STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 831147256Sbrooks return (0); 832147256Sbrooks} 833147256Sbrooks 834147256Sbrooks/* 835147256Sbrooks * To free IEEE1394 address block. 836147256Sbrooks */ 837147256Sbrooksint 838147256Sbrooksfw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 839147256Sbrooks{ 840147256Sbrooks#if 0 841147256Sbrooks struct fw_xfer *xfer, *next; 842147256Sbrooks#endif 843147256Sbrooks struct fw_bind *tfw; 844147256Sbrooks int s; 845147256Sbrooks 846147256Sbrooks s = splfw(); 847147256Sbrooks STAILQ_FOREACH(tfw, &fc->binds, fclist) 848147256Sbrooks if (tfw == fwb) { 849147256Sbrooks STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 850150988Savatar goto found; 851147256Sbrooks } 852241394Skevlo 853147256Sbrooks printf("%s: no such bind\n", __FUNCTION__); 854147256Sbrooks splx(s); 855150988Savatar return (1); 856150988Savatarfound: 857#if 0 858 /* shall we do this? */ 859 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 860 next = STAILQ_NEXT(xfer, link); 861 fw_xfer_free(xfer); 862 } 863 STAILQ_INIT(&fwb->xferlist); 864#endif 865 866 splx(s); 867 return 0; 868} 869 870/* 871 * To free transaction label. 872 */ 873static void 874fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 875{ 876 struct tlabel *tl; 877 int s = splfw(); 878 879 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 880 tl = STAILQ_NEXT(tl, link)){ 881 if(tl->xfer == xfer){ 882 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 883 free(tl, M_FW); 884 splx(s); 885 return; 886 } 887 } 888 splx(s); 889 return; 890} 891 892/* 893 * To obtain XFER structure by transaction label. 894 */ 895static struct fw_xfer * 896fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 897{ 898 struct fw_xfer *xfer; 899 struct tlabel *tl; 900 int s = splfw(); 901 902 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 903 tl = STAILQ_NEXT(tl, link)){ 904 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 905 xfer = tl->xfer; 906 splx(s); 907 if (firewire_debug > 2) 908 printf("fw_tl2xfer: found tl=%d\n", tlabel); 909 return(xfer); 910 } 911 } 912 if (firewire_debug > 1) 913 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 914 splx(s); 915 return(NULL); 916} 917 918/* 919 * To allocate IEEE1394 XFER structure. 920 */ 921struct fw_xfer * 922fw_xfer_alloc(struct malloc_type *type) 923{ 924 struct fw_xfer *xfer; 925 926 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 927 if (xfer == NULL) 928 return xfer; 929 930 xfer->malloc = type; 931 932 return xfer; 933} 934 935struct fw_xfer * 936fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 937{ 938 struct fw_xfer *xfer; 939 940 xfer = fw_xfer_alloc(type); 941 xfer->send.pay_len = send_len; 942 xfer->recv.pay_len = recv_len; 943 if (xfer == NULL) 944 return(NULL); 945 if (send_len > 0) { 946 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 947 if (xfer->send.payload == NULL) { 948 fw_xfer_free(xfer); 949 return(NULL); 950 } 951 } 952 if (recv_len > 0) { 953 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 954 if (xfer->recv.payload == NULL) { 955 if (xfer->send.payload != NULL) 956 free(xfer->send.payload, type); 957 fw_xfer_free(xfer); 958 return(NULL); 959 } 960 } 961 return(xfer); 962} 963 964/* 965 * IEEE1394 XFER post process. 966 */ 967void 968fw_xfer_done(struct fw_xfer *xfer) 969{ 970 if (xfer->act.hand == NULL) { 971 printf("act.hand == NULL\n"); 972 return; 973 } 974 975 if (xfer->fc->status != FWBUSRESET) 976 xfer->act.hand(xfer); 977 else { 978 printf("fw_xfer_done: pending\n"); 979 if (xfer->fc != NULL) 980 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 981 else 982 panic("fw_xfer_done: why xfer->fc is NULL?"); 983 } 984} 985 986void 987fw_xfer_unload(struct fw_xfer* xfer) 988{ 989 int s; 990 991 if(xfer == NULL ) return; 992 if(xfer->state == FWXF_INQ){ 993 printf("fw_xfer_free FWXF_INQ\n"); 994 s = splfw(); 995 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 996 xfer->q->queued --; 997 splx(s); 998 } 999 if (xfer->fc != NULL) { 1000#if 1 1001 if(xfer->state == FWXF_START) 1002 /* 1003 * This could happen if: 1004 * 1. We call fwohci_arcv() before fwohci_txd(). 1005 * 2. firewire_watch() is called. 1006 */ 1007 printf("fw_xfer_free FWXF_START\n"); 1008#endif 1009 fw_tl_free(xfer->fc, xfer); 1010 } 1011 xfer->state = FWXF_INIT; 1012 xfer->resp = 0; 1013 xfer->retry = 0; 1014} 1015/* 1016 * To free IEEE1394 XFER structure. 1017 */ 1018void 1019fw_xfer_free_buf( struct fw_xfer* xfer) 1020{ 1021 if (xfer == NULL) { 1022 printf("%s: xfer == NULL\n", __FUNCTION__); 1023 return; 1024 } 1025 fw_xfer_unload(xfer); 1026 if(xfer->send.payload != NULL){ 1027 free(xfer->send.payload, xfer->malloc); 1028 } 1029 if(xfer->recv.payload != NULL){ 1030 free(xfer->recv.payload, xfer->malloc); 1031 } 1032 free(xfer, xfer->malloc); 1033} 1034 1035void 1036fw_xfer_free( struct fw_xfer* xfer) 1037{ 1038 if (xfer == NULL) { 1039 printf("%s: xfer == NULL\n", __FUNCTION__); 1040 return; 1041 } 1042 fw_xfer_unload(xfer); 1043 free(xfer, xfer->malloc); 1044} 1045 1046void 1047fw_asy_callback_free(struct fw_xfer *xfer) 1048{ 1049#if 0 1050 printf("asyreq done state=%d resp=%d\n", 1051 xfer->state, xfer->resp); 1052#endif 1053 fw_xfer_free(xfer); 1054} 1055 1056/* 1057 * To configure PHY. 1058 */ 1059static void 1060fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1061{ 1062 struct fw_xfer *xfer; 1063 struct fw_pkt *fp; 1064 1065 fc->status = FWBUSPHYCONF; 1066 1067 xfer = fw_xfer_alloc(M_FWXFER); 1068 if (xfer == NULL) 1069 return; 1070 xfer->fc = fc; 1071 xfer->retry_req = fw_asybusy; 1072 xfer->act.hand = fw_asy_callback_free; 1073 1074 fp = &xfer->send.hdr; 1075 fp->mode.ld[1] = 0; 1076 if (root_node >= 0) 1077 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1078 if (gap_count >= 0) 1079 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1080 fp->mode.ld[2] = ~fp->mode.ld[1]; 1081/* XXX Dangerous, how to pass PHY packet to device driver */ 1082 fp->mode.common.tcode |= FWTCODE_PHY; 1083 1084 if (firewire_debug) 1085 printf("send phy_config root_node=%d gap_count=%d\n", 1086 root_node, gap_count); 1087 fw_asyreq(fc, -1, xfer); 1088} 1089 1090#if 0 1091/* 1092 * Dump self ID. 1093 */ 1094static void 1095fw_print_sid(u_int32_t sid) 1096{ 1097 union fw_self_id *s; 1098 s = (union fw_self_id *) &sid; 1099 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1100 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1101 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1102 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1103 s->p0.power_class, s->p0.port0, s->p0.port1, 1104 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1105} 1106#endif 1107 1108/* 1109 * To receive self ID. 1110 */ 1111void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1112{ 1113 u_int32_t *p; 1114 union fw_self_id *self_id; 1115 u_int i, j, node, c_port = 0, i_branch = 0; 1116 1117 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1118 fc->status = FWBUSINIT; 1119 fc->max_node = fc->nodeid & 0x3f; 1120 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1121 fc->status = FWBUSCYMELECT; 1122 fc->topology_map->crc_len = 2; 1123 fc->topology_map->generation ++; 1124 fc->topology_map->self_id_count = 0; 1125 fc->topology_map->node_count = 0; 1126 fc->speed_map->generation ++; 1127 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1128 self_id = &fc->topology_map->self_id[0]; 1129 for(i = 0; i < fc->sid_cnt; i ++){ 1130 if (sid[1] != ~sid[0]) { 1131 printf("fw_sidrcv: invalid self-id packet\n"); 1132 sid += 2; 1133 continue; 1134 } 1135 *self_id = *((union fw_self_id *)sid); 1136 fc->topology_map->crc_len++; 1137 if(self_id->p0.sequel == 0){ 1138 fc->topology_map->node_count ++; 1139 c_port = 0; 1140#if 0 1141 fw_print_sid(sid[0]); 1142#endif 1143 node = self_id->p0.phy_id; 1144 if(fc->max_node < node){ 1145 fc->max_node = self_id->p0.phy_id; 1146 } 1147 /* XXX I'm not sure this is the right speed_map */ 1148 fc->speed_map->speed[node][node] 1149 = self_id->p0.phy_speed; 1150 for (j = 0; j < node; j ++) { 1151 fc->speed_map->speed[j][node] 1152 = fc->speed_map->speed[node][j] 1153 = min(fc->speed_map->speed[j][j], 1154 self_id->p0.phy_speed); 1155 } 1156 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1157 (self_id->p0.link_active && self_id->p0.contender)) { 1158 fc->irm = self_id->p0.phy_id; 1159 } 1160 if(self_id->p0.port0 >= 0x2){ 1161 c_port++; 1162 } 1163 if(self_id->p0.port1 >= 0x2){ 1164 c_port++; 1165 } 1166 if(self_id->p0.port2 >= 0x2){ 1167 c_port++; 1168 } 1169 } 1170 if(c_port > 2){ 1171 i_branch += (c_port - 2); 1172 } 1173 sid += 2; 1174 self_id++; 1175 fc->topology_map->self_id_count ++; 1176 } 1177 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1178 /* CRC */ 1179 fc->topology_map->crc = fw_crc16( 1180 (u_int32_t *)&fc->topology_map->generation, 1181 fc->topology_map->crc_len * 4); 1182 fc->speed_map->crc = fw_crc16( 1183 (u_int32_t *)&fc->speed_map->generation, 1184 fc->speed_map->crc_len * 4); 1185 /* byteswap and copy to CSR */ 1186 p = (u_int32_t *)fc->topology_map; 1187 for (i = 0; i <= fc->topology_map->crc_len; i++) 1188 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1189 p = (u_int32_t *)fc->speed_map; 1190 CSRARC(fc, SPED_MAP) = htonl(*p++); 1191 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1192 /* don't byte-swap u_int8_t array */ 1193 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1194 1195 fc->max_hop = fc->max_node - i_branch; 1196 printf(", maxhop <= %d", fc->max_hop); 1197 1198 if(fc->irm == -1 ){ 1199 printf(", Not found IRM capable node"); 1200 }else{ 1201 printf(", cable IRM = %d", fc->irm); 1202 if (fc->irm == fc->nodeid) 1203 printf(" (me)"); 1204 } 1205 printf("\n"); 1206 1207 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1208 if (fc->irm == fc->nodeid) { 1209 fc->status = FWBUSMGRDONE; 1210 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1211 fw_bmr(fc); 1212 } else { 1213 fc->status = FWBUSMGRELECT; 1214 callout_reset(&fc->bmr_callout, hz/8, 1215 (void *)fw_try_bmr, (void *)fc); 1216 } 1217 } else 1218 fc->status = FWBUSMGRDONE; 1219 1220 callout_reset(&fc->busprobe_callout, hz/4, 1221 (void *)fw_bus_probe, (void *)fc); 1222} 1223 1224/* 1225 * To probe devices on the IEEE1394 bus. 1226 */ 1227static void 1228fw_bus_probe(struct firewire_comm *fc) 1229{ 1230 int s; 1231 struct fw_device *fwdev; 1232 1233 s = splfw(); 1234 fc->status = FWBUSEXPLORE; 1235 fc->retry_count = 0; 1236 1237 /* Invalidate all devices, just after bus reset. */ 1238 STAILQ_FOREACH(fwdev, &fc->devices, link) 1239 if (fwdev->status != FWDEVINVAL) { 1240 fwdev->status = FWDEVINVAL; 1241 fwdev->rcnt = 0; 1242 } 1243 1244 fc->ongonode = 0; 1245 fc->ongoaddr = CSRROMOFF; 1246 fc->ongodev = NULL; 1247 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1248 fw_bus_explore(fc); 1249 splx(s); 1250} 1251 1252/* 1253 * To collect device informations on the IEEE1394 bus. 1254 */ 1255static void 1256fw_bus_explore(struct firewire_comm *fc ) 1257{ 1258 int err = 0; 1259 struct fw_device *fwdev, *pfwdev, *tfwdev; 1260 u_int32_t addr; 1261 struct fw_xfer *xfer; 1262 struct fw_pkt *fp; 1263 1264 if(fc->status != FWBUSEXPLORE) 1265 return; 1266 1267loop: 1268 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1269 1270 if(fc->ongonode > fc->max_node) goto done; 1271 if(fc->ongonode >= 0x3f) goto done; 1272 1273 /* check link */ 1274 /* XXX we need to check phy_id first */ 1275 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1276 if (firewire_debug) 1277 printf("node%d: link down\n", fc->ongonode); 1278 fc->ongonode++; 1279 goto loop; 1280 } 1281 1282 if(fc->ongoaddr <= CSRROMOFF && 1283 fc->ongoeui.hi == 0xffffffff && 1284 fc->ongoeui.lo == 0xffffffff ){ 1285 fc->ongoaddr = CSRROMOFF; 1286 addr = 0xf0000000 | fc->ongoaddr; 1287 }else if(fc->ongoeui.hi == 0xffffffff ){ 1288 fc->ongoaddr = CSRROMOFF + 0xc; 1289 addr = 0xf0000000 | fc->ongoaddr; 1290 }else if(fc->ongoeui.lo == 0xffffffff ){ 1291 fc->ongoaddr = CSRROMOFF + 0x10; 1292 addr = 0xf0000000 | fc->ongoaddr; 1293 }else if(fc->ongodev == NULL){ 1294 STAILQ_FOREACH(fwdev, &fc->devices, link) 1295 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1296 break; 1297 if(fwdev != NULL){ 1298 fwdev->dst = fc->ongonode; 1299 fwdev->status = FWDEVINIT; 1300 fc->ongodev = fwdev; 1301 fc->ongoaddr = CSRROMOFF; 1302 addr = 0xf0000000 | fc->ongoaddr; 1303 goto dorequest; 1304 } 1305 fwdev = malloc(sizeof(struct fw_device), M_FW, 1306 M_NOWAIT | M_ZERO); 1307 if(fwdev == NULL) 1308 return; 1309 fwdev->fc = fc; 1310 fwdev->rommax = 0; 1311 fwdev->dst = fc->ongonode; 1312 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1313 fwdev->status = FWDEVINIT; 1314 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1315 1316 pfwdev = NULL; 1317 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1318 if (tfwdev->eui.hi > fwdev->eui.hi || 1319 (tfwdev->eui.hi == fwdev->eui.hi && 1320 tfwdev->eui.lo > fwdev->eui.lo)) 1321 break; 1322 pfwdev = tfwdev; 1323 } 1324 if (pfwdev == NULL) 1325 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1326 else 1327 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1328 1329 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1330 linkspeed[fwdev->speed], 1331 fc->ongoeui.hi, fc->ongoeui.lo); 1332 1333 fc->ongodev = fwdev; 1334 fc->ongoaddr = CSRROMOFF; 1335 addr = 0xf0000000 | fc->ongoaddr; 1336 }else{ 1337 addr = 0xf0000000 | fc->ongoaddr; 1338 } 1339dorequest: 1340#if 0 1341 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1342 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1343 fw_bus_explore_callback); 1344 if(xfer == NULL) goto done; 1345#else 1346 xfer = fw_xfer_alloc(M_FWXFER); 1347 if(xfer == NULL){ 1348 goto done; 1349 } 1350 xfer->send.spd = 0; 1351 fp = &xfer->send.hdr; 1352 fp->mode.rreqq.dest_hi = 0xffff; 1353 fp->mode.rreqq.tlrt = 0; 1354 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1355 fp->mode.rreqq.pri = 0; 1356 fp->mode.rreqq.src = 0; 1357 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1358 fp->mode.rreqq.dest_lo = addr; 1359 xfer->act.hand = fw_bus_explore_callback; 1360 1361 if (firewire_debug) 1362 printf("node%d: explore addr=0x%x\n", 1363 fc->ongonode, fc->ongoaddr); 1364 err = fw_asyreq(fc, -1, xfer); 1365 if(err){ 1366 fw_xfer_free( xfer); 1367 return; 1368 } 1369#endif 1370 return; 1371done: 1372 /* fw_attach_devs */ 1373 fc->status = FWBUSEXPDONE; 1374 if (firewire_debug) 1375 printf("bus_explore done\n"); 1376 fw_attach_dev(fc); 1377 return; 1378 1379} 1380 1381/* Portable Async. request read quad */ 1382struct fw_xfer * 1383asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1384 u_int32_t addr_hi, u_int32_t addr_lo, 1385 void (*hand) __P((struct fw_xfer*))) 1386{ 1387 struct fw_xfer *xfer; 1388 struct fw_pkt *fp; 1389 int err; 1390 1391 xfer = fw_xfer_alloc(M_FWXFER); 1392 if (xfer == NULL) 1393 return NULL; 1394 1395 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1396 fp = &xfer->send.hdr; 1397 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1398 if(tl & FWP_TL_VALID){ 1399 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1400 }else{ 1401 fp->mode.rreqq.tlrt = 0; 1402 } 1403 fp->mode.rreqq.tlrt |= rt & 0x3; 1404 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1405 fp->mode.rreqq.pri = 0; 1406 fp->mode.rreqq.src = 0; 1407 fp->mode.rreqq.dst = addr_hi >> 16; 1408 fp->mode.rreqq.dest_lo = addr_lo; 1409 xfer->act.hand = hand; 1410 1411 err = fw_asyreq(fc, -1, xfer); 1412 if(err){ 1413 fw_xfer_free( xfer); 1414 return NULL; 1415 } 1416 return xfer; 1417} 1418 1419/* 1420 * Callback for the IEEE1394 bus information collection. 1421 */ 1422static void 1423fw_bus_explore_callback(struct fw_xfer *xfer) 1424{ 1425 struct firewire_comm *fc; 1426 struct fw_pkt *sfp,*rfp; 1427 struct csrhdr *chdr; 1428 struct csrdir *csrd; 1429 struct csrreg *csrreg; 1430 u_int32_t offset; 1431 1432 1433 if(xfer == NULL) { 1434 printf("xfer == NULL\n"); 1435 return; 1436 } 1437 fc = xfer->fc; 1438 1439 if (firewire_debug) 1440 printf("node%d: callback addr=0x%x\n", 1441 fc->ongonode, fc->ongoaddr); 1442 1443 if(xfer->resp != 0){ 1444 printf("node%d: resp=%d addr=0x%x\n", 1445 fc->ongonode, xfer->resp, fc->ongoaddr); 1446 goto errnode; 1447 } 1448 1449 sfp = &xfer->send.hdr; 1450 rfp = &xfer->recv.hdr; 1451#if 0 1452 { 1453 u_int32_t *qld; 1454 int i; 1455 qld = (u_int32_t *)xfer->recv.buf; 1456 printf("len:%d\n", xfer->recv.len); 1457 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1458 printf("0x%08x ", rfp->mode.ld[i/4]); 1459 if((i % 16) == 15) printf("\n"); 1460 } 1461 if((i % 16) != 15) printf("\n"); 1462 } 1463#endif 1464 if(fc->ongodev == NULL){ 1465 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1466 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1467 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1468/* If CSR is minimal confinguration, more investgation is not needed. */ 1469 if(chdr->info_len == 1){ 1470 if (firewire_debug) 1471 printf("node%d: minimal config\n", 1472 fc->ongonode); 1473 goto nextnode; 1474 }else{ 1475 fc->ongoaddr = CSRROMOFF + 0xc; 1476 } 1477 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1478 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1479 fc->ongoaddr = CSRROMOFF + 0x10; 1480 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1481 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1482 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1483 if (firewire_debug) 1484 printf("node%d: eui64 is zero.\n", 1485 fc->ongonode); 1486 goto nextnode; 1487 } 1488 fc->ongoaddr = CSRROMOFF; 1489 } 1490 }else{ 1491 if (fc->ongoaddr == CSRROMOFF && 1492 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1493 fc->ongodev->status = FWDEVATTACHED; 1494 goto nextnode; 1495 } 1496 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1497 if(fc->ongoaddr > fc->ongodev->rommax){ 1498 fc->ongodev->rommax = fc->ongoaddr; 1499 } 1500 csrd = SLIST_FIRST(&fc->ongocsr); 1501 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1502 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1503 offset = CSRROMOFF; 1504 }else{ 1505 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1506 offset = csrd->off; 1507 } 1508 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1509 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1510 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1511 csrd = SLIST_FIRST(&fc->csrfree); 1512 if(csrd == NULL){ 1513 goto nextnode; 1514 }else{ 1515 csrd->ongoaddr = fc->ongoaddr; 1516 fc->ongoaddr += csrreg->val * 4; 1517 csrd->off = fc->ongoaddr; 1518 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1519 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1520 goto nextaddr; 1521 } 1522 } 1523 } 1524 fc->ongoaddr += 4; 1525 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1526 (fc->ongodev->rommax < 0x414)){ 1527 if(fc->ongodev->rommax <= 0x414){ 1528 csrd = SLIST_FIRST(&fc->csrfree); 1529 if(csrd == NULL) goto nextnode; 1530 csrd->off = fc->ongoaddr; 1531 csrd->ongoaddr = fc->ongoaddr; 1532 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1533 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1534 } 1535 goto nextaddr; 1536 } 1537 1538 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1539 if(csrd == NULL){ 1540 goto nextnode; 1541 }; 1542 fc->ongoaddr = csrd->ongoaddr + 4; 1543 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1544 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1545 csrd = SLIST_FIRST(&fc->ongocsr); 1546 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1547 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1548 offset = CSRROMOFF; 1549 }else{ 1550 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1551 offset = csrd->off; 1552 } 1553 } 1554 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1555 goto nextnode; 1556 } 1557 } 1558nextaddr: 1559 fw_xfer_free( xfer); 1560 fw_bus_explore(fc); 1561 return; 1562errnode: 1563 fc->retry_count++; 1564 if (fc->ongodev != NULL) 1565 fc->ongodev->status = FWDEVINVAL; 1566nextnode: 1567 fw_xfer_free( xfer); 1568 fc->ongonode++; 1569/* housekeeping work space */ 1570 fc->ongoaddr = CSRROMOFF; 1571 fc->ongodev = NULL; 1572 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1573 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1574 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1575 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1576 } 1577 fw_bus_explore(fc); 1578 return; 1579} 1580 1581/* 1582 * To attach sub-devices layer onto IEEE1394 bus. 1583 */ 1584static void 1585fw_attach_dev(struct firewire_comm *fc) 1586{ 1587 struct fw_device *fwdev, *next; 1588 struct fw_xfer *xfer; 1589 int i, err; 1590 device_t *devlistp; 1591 int devcnt; 1592 struct firewire_dev_comm *fdc; 1593 1594 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1595 next = STAILQ_NEXT(fwdev, link); 1596 if (fwdev->status == FWDEVINIT) { 1597 fwdev->status = FWDEVATTACHED; 1598 } else if (fwdev->status == FWDEVINVAL) { 1599 fwdev->rcnt ++; 1600 if (fwdev->rcnt > hold_count) { 1601 /* 1602 * Remove devices which have not been seen 1603 * for a while. 1604 */ 1605 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1606 link); 1607 free(fwdev, M_FW); 1608 } 1609 } 1610 } 1611 1612 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1613 if( err != 0 ) 1614 return; 1615 for( i = 0 ; i < devcnt ; i++){ 1616 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1617 fdc = device_get_softc(devlistp[i]); 1618 if (fdc->post_explore != NULL) 1619 fdc->post_explore(fdc); 1620 } 1621 } 1622 free(devlistp, M_TEMP); 1623 1624 /* call pending handlers */ 1625 i = 0; 1626 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1627 STAILQ_REMOVE_HEAD(&fc->pending, link); 1628 i++; 1629 if (xfer->act.hand) 1630 xfer->act.hand(xfer); 1631 } 1632 if (i > 0) 1633 printf("fw_attach_dev: %d pending handlers called\n", i); 1634 if (fc->retry_count > 0) { 1635 printf("probe failed for %d node\n", fc->retry_count); 1636#if 0 1637 callout_reset(&fc->retry_probe_callout, hz*2, 1638 (void *)fc->ibr, (void *)fc); 1639#endif 1640 } 1641 return; 1642} 1643 1644/* 1645 * To allocate uniq transaction label. 1646 */ 1647static int 1648fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1649{ 1650 u_int i; 1651 struct tlabel *tl, *tmptl; 1652 int s; 1653 static u_int32_t label = 0; 1654 1655 s = splfw(); 1656 for( i = 0 ; i < 0x40 ; i ++){ 1657 label = (label + 1) & 0x3f; 1658 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1659 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1660 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1661 xfer->send.hdr.mode.hdr.dst) 1662 break; 1663 } 1664 if(tmptl == NULL) { 1665 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1666 if (tl == NULL) { 1667 splx(s); 1668 return (-1); 1669 } 1670 tl->xfer = xfer; 1671 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1672 splx(s); 1673 if (firewire_debug > 1) 1674 printf("fw_get_tlabel: dst=%d tl=%d\n", 1675 xfer->send.hdr.mode.hdr.dst, label); 1676 return(label); 1677 } 1678 } 1679 splx(s); 1680 1681 printf("fw_get_tlabel: no free tlabel\n"); 1682 return(-1); 1683} 1684 1685static void 1686fw_rcv_copy(struct fw_rcv_buf *rb) 1687{ 1688 struct fw_pkt *pkt; 1689 u_char *p; 1690 struct tcode_info *tinfo; 1691 u_int res, i, len, plen; 1692 1693 rb->xfer->recv.spd -= rb->spd; 1694 1695 pkt = (struct fw_pkt *)rb->vec->iov_base; 1696 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1697 1698 /* Copy header */ 1699 p = (u_char *)&rb->xfer->recv.hdr; 1700 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1701 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1702 rb->vec->iov_len -= tinfo->hdr_len; 1703 1704 /* Copy payload */ 1705 p = (u_char *)rb->xfer->recv.payload; 1706 res = rb->xfer->recv.pay_len; 1707 1708 /* special handling for RRESQ */ 1709 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1710 p != NULL && res >= sizeof(u_int32_t)) { 1711 *(u_int32_t *)p = pkt->mode.rresq.data; 1712 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1713 return; 1714 } 1715 1716 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1717 return; 1718 1719 plen = pkt->mode.rresb.len; 1720 1721 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1722 len = MIN(rb->vec->iov_len, plen); 1723 if (res < len) { 1724 printf("rcv buffer(%d) is %d bytes short.\n", 1725 rb->xfer->recv.pay_len, len - res); 1726 len = res; 1727 } 1728 bcopy(rb->vec->iov_base, p, len); 1729 p += len; 1730 res -= len; 1731 plen -= len; 1732 if (res == 0 || plen == 0) 1733 break; 1734 } 1735 rb->xfer->recv.pay_len -= res; 1736 1737} 1738 1739/* 1740 * Generic packet receving process. 1741 */ 1742void 1743fw_rcv(struct fw_rcv_buf *rb) 1744{ 1745 struct fw_pkt *fp, *resfp; 1746 struct fw_bind *bind; 1747 int tcode, s; 1748 int i, len, oldstate; 1749#if 0 1750 { 1751 u_int32_t *qld; 1752 int i; 1753 qld = (u_int32_t *)buf; 1754 printf("spd %d len:%d\n", spd, len); 1755 for( i = 0 ; i <= len && i < 32; i+= 4){ 1756 printf("0x%08x ", ntohl(qld[i/4])); 1757 if((i % 16) == 15) printf("\n"); 1758 } 1759 if((i % 16) != 15) printf("\n"); 1760 } 1761#endif 1762 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1763 tcode = fp->mode.common.tcode; 1764 switch (tcode) { 1765 case FWTCODE_WRES: 1766 case FWTCODE_RRESQ: 1767 case FWTCODE_RRESB: 1768 case FWTCODE_LRES: 1769 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1770 fp->mode.hdr.tlrt >> 2); 1771 if(rb->xfer == NULL) { 1772 printf("fw_rcv: unknown response " 1773 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1774 tcode, 1775 fp->mode.hdr.src, 1776 fp->mode.hdr.tlrt >> 2, 1777 fp->mode.hdr.tlrt & 3, 1778 fp->mode.rresq.data); 1779#if 1 1780 printf("try ad-hoc work around!!\n"); 1781 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1782 (fp->mode.hdr.tlrt >> 2)^3); 1783 if (rb->xfer == NULL) { 1784 printf("no use...\n"); 1785 goto err; 1786 } 1787#else 1788 goto err; 1789#endif 1790 } 1791 fw_rcv_copy(rb); 1792 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1793 rb->xfer->resp = EIO; 1794 else 1795 rb->xfer->resp = 0; 1796 /* make sure the packet is drained in AT queue */ 1797 oldstate = rb->xfer->state; 1798 rb->xfer->state = FWXF_RCVD; 1799 switch (oldstate) { 1800 case FWXF_SENT: 1801 fw_xfer_done(rb->xfer); 1802 break; 1803 case FWXF_START: 1804#if 0 1805 if (firewire_debug) 1806 printf("not sent yet tl=%x\n", rb->xfer->tl); 1807#endif 1808 break; 1809 default: 1810 printf("unexpected state %d\n", rb->xfer->state); 1811 } 1812 return; 1813 case FWTCODE_WREQQ: 1814 case FWTCODE_WREQB: 1815 case FWTCODE_RREQQ: 1816 case FWTCODE_RREQB: 1817 case FWTCODE_LREQ: 1818 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1819 fp->mode.rreqq.dest_lo); 1820 if(bind == NULL){ 1821#if __FreeBSD_version >= 500000 1822 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%x\n", 1823#else 1824 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%lx\n", 1825#endif 1826 fp->mode.wreqq.dest_hi, 1827 fp->mode.wreqq.dest_lo, 1828 tcode, 1829 fp->mode.hdr.src, 1830 ntohl(fp->mode.wreqq.data)); 1831 if (rb->fc->status == FWBUSRESET) { 1832 printf("fw_rcv: cannot respond(bus reset)!\n"); 1833 goto err; 1834 } 1835 rb->xfer = fw_xfer_alloc(M_FWXFER); 1836 if(rb->xfer == NULL){ 1837 return; 1838 } 1839 rb->xfer->send.spd = rb->spd; 1840 rb->xfer->send.pay_len = 0; 1841 resfp = &rb->xfer->send.hdr; 1842 switch (tcode) { 1843 case FWTCODE_WREQQ: 1844 case FWTCODE_WREQB: 1845 resfp->mode.hdr.tcode = FWTCODE_WRES; 1846 break; 1847 case FWTCODE_RREQQ: 1848 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1849 break; 1850 case FWTCODE_RREQB: 1851 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1852 break; 1853 case FWTCODE_LREQ: 1854 resfp->mode.hdr.tcode = FWTCODE_LRES; 1855 break; 1856 } 1857 resfp->mode.hdr.dst = fp->mode.hdr.src; 1858 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1859 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1860 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1861 resfp->mode.rresb.extcode = 0; 1862 resfp->mode.rresb.len = 0; 1863/* 1864 rb->xfer->act.hand = fw_asy_callback; 1865*/ 1866 rb->xfer->act.hand = fw_xfer_free; 1867 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1868 fw_xfer_free(rb->xfer); 1869 return; 1870 } 1871 goto err; 1872 } 1873 len = 0; 1874 for (i = 0; i < rb->nvec; i ++) 1875 len += rb->vec[i].iov_len; 1876 switch(bind->act_type){ 1877 case FWACT_XFER: 1878 /* splfw()?? */ 1879 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1880 if (rb->xfer == NULL) { 1881 printf("Discard a packet for this bind.\n"); 1882 goto err; 1883 } 1884 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1885 fw_rcv_copy(rb); 1886 if (rb->fc->status != FWBUSRESET) 1887 rb->xfer->act.hand(rb->xfer); 1888 else 1889 STAILQ_INSERT_TAIL(&rb->fc->pending, 1890 rb->xfer, link); 1891 return; 1892 break; 1893 case FWACT_CH: 1894 if(rb->fc->ir[bind->sub]->queued >= 1895 rb->fc->ir[bind->sub]->maxq){ 1896 device_printf(rb->fc->bdev, 1897 "Discard a packet %x %d\n", 1898 bind->sub, 1899 rb->fc->ir[bind->sub]->queued); 1900 goto err; 1901 } 1902 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1903 if (rb->xfer == NULL) { 1904 printf("Discard packet for this bind\n"); 1905 goto err; 1906 } 1907 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1908 fw_rcv_copy(rb); 1909 s = splfw(); 1910 rb->fc->ir[bind->sub]->queued++; 1911 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1912 rb->xfer, link); 1913 splx(s); 1914 1915 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1916 1917 return; 1918 break; 1919 default: 1920 goto err; 1921 break; 1922 } 1923 break; 1924#if 0 /* shouldn't happen ?? or for GASP */ 1925 case FWTCODE_STREAM: 1926 { 1927 struct fw_xferq *xferq; 1928 1929 xferq = rb->fc->ir[sub]; 1930#if 0 1931 printf("stream rcv dma %d len %d off %d spd %d\n", 1932 sub, len, off, spd); 1933#endif 1934 if(xferq->queued >= xferq->maxq) { 1935 printf("receive queue is full\n"); 1936 goto err; 1937 } 1938 /* XXX get xfer from xfer queue, we don't need copy for 1939 per packet mode */ 1940 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1941 vec[0].iov_len); 1942 if (rb->xfer == NULL) goto err; 1943 fw_rcv_copy(rb) 1944 s = splfw(); 1945 xferq->queued++; 1946 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1947 splx(s); 1948 sc = device_get_softc(rb->fc->bdev); 1949#if __FreeBSD_version >= 500000 1950 if (SEL_WAITING(&xferq->rsel)) 1951#else 1952 if (&xferq->rsel.si_pid != 0) 1953#endif 1954 selwakeup(&xferq->rsel); 1955 if (xferq->flag & FWXFERQ_WAKEUP) { 1956 xferq->flag &= ~FWXFERQ_WAKEUP; 1957 wakeup((caddr_t)xferq); 1958 } 1959 if (xferq->flag & FWXFERQ_HANDLER) { 1960 xferq->hand(xferq); 1961 } 1962 return; 1963 break; 1964 } 1965#endif 1966 default: 1967 printf("fw_rcv: unknow tcode %d\n", tcode); 1968 break; 1969 } 1970err: 1971 return; 1972} 1973 1974/* 1975 * Post process for Bus Manager election process. 1976 */ 1977static void 1978fw_try_bmr_callback(struct fw_xfer *xfer) 1979{ 1980 struct firewire_comm *fc; 1981 int bmr; 1982 1983 if (xfer == NULL) 1984 return; 1985 fc = xfer->fc; 1986 if (xfer->resp != 0) 1987 goto error; 1988 if (xfer->recv.payload == NULL) 1989 goto error; 1990 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1991 goto error; 1992 1993 bmr = ntohl(xfer->recv.payload[0]); 1994 if (bmr == 0x3f) 1995 bmr = fc->nodeid; 1996 1997 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1998 fw_xfer_free_buf(xfer); 1999 fw_bmr(fc); 2000 return; 2001 2002error: 2003 device_printf(fc->bdev, "bus manager election failed\n"); 2004 fw_xfer_free_buf(xfer); 2005} 2006 2007 2008/* 2009 * To candidate Bus Manager election process. 2010 */ 2011static void 2012fw_try_bmr(void *arg) 2013{ 2014 struct fw_xfer *xfer; 2015 struct firewire_comm *fc = (struct firewire_comm *)arg; 2016 struct fw_pkt *fp; 2017 int err = 0; 2018 2019 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2020 if(xfer == NULL){ 2021 return; 2022 } 2023 xfer->send.spd = 0; 2024 fc->status = FWBUSMGRELECT; 2025 2026 fp = &xfer->send.hdr; 2027 fp->mode.lreq.dest_hi = 0xffff; 2028 fp->mode.lreq.tlrt = 0; 2029 fp->mode.lreq.tcode = FWTCODE_LREQ; 2030 fp->mode.lreq.pri = 0; 2031 fp->mode.lreq.src = 0; 2032 fp->mode.lreq.len = 8; 2033 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2034 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2035 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2036 xfer->send.payload[0] = htonl(0x3f); 2037 xfer->send.payload[1] = htonl(fc->nodeid); 2038 xfer->act.hand = fw_try_bmr_callback; 2039 2040 err = fw_asyreq(fc, -1, xfer); 2041 if(err){ 2042 fw_xfer_free_buf(xfer); 2043 return; 2044 } 2045 return; 2046} 2047 2048#ifdef FW_VMACCESS 2049/* 2050 * Software implementation for physical memory block access. 2051 * XXX:Too slow, usef for debug purpose only. 2052 */ 2053static void 2054fw_vmaccess(struct fw_xfer *xfer){ 2055 struct fw_pkt *rfp, *sfp = NULL; 2056 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2057 2058 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2059 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2060 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2061 if(xfer->resp != 0){ 2062 fw_xfer_free( xfer); 2063 return; 2064 } 2065 if(xfer->recv.buf == NULL){ 2066 fw_xfer_free( xfer); 2067 return; 2068 } 2069 rfp = (struct fw_pkt *)xfer->recv.buf; 2070 switch(rfp->mode.hdr.tcode){ 2071 /* XXX need fix for 64bit arch */ 2072 case FWTCODE_WREQB: 2073 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2074 xfer->send.len = 12; 2075 sfp = (struct fw_pkt *)xfer->send.buf; 2076 bcopy(rfp->mode.wreqb.payload, 2077 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2078 sfp->mode.wres.tcode = FWTCODE_WRES; 2079 sfp->mode.wres.rtcode = 0; 2080 break; 2081 case FWTCODE_WREQQ: 2082 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2083 xfer->send.len = 12; 2084 sfp->mode.wres.tcode = FWTCODE_WRES; 2085 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2086 sfp->mode.wres.rtcode = 0; 2087 break; 2088 case FWTCODE_RREQB: 2089 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2090 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2091 sfp = (struct fw_pkt *)xfer->send.buf; 2092 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2093 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2094 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2095 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2096 sfp->mode.rresb.rtcode = 0; 2097 sfp->mode.rresb.extcode = 0; 2098 break; 2099 case FWTCODE_RREQQ: 2100 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2101 xfer->send.len = 16; 2102 sfp = (struct fw_pkt *)xfer->send.buf; 2103 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2104 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2105 sfp->mode.rresb.rtcode = 0; 2106 break; 2107 default: 2108 fw_xfer_free( xfer); 2109 return; 2110 } 2111 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2112 xfer->dst = ntohs(rfp->mode.hdr.src); 2113 xfer->act.hand = fw_xfer_free; 2114 xfer->retry_req = fw_asybusy; 2115 2116 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2117 sfp->mode.hdr.pri = 0; 2118 2119 fw_asyreq(xfer->fc, -1, xfer); 2120/**/ 2121 return; 2122} 2123#endif 2124 2125/* 2126 * CRC16 check-sum for IEEE1394 register blocks. 2127 */ 2128u_int16_t 2129fw_crc16(u_int32_t *ptr, u_int32_t len){ 2130 u_int32_t i, sum, crc = 0; 2131 int shift; 2132 len = (len + 3) & ~3; 2133 for(i = 0 ; i < len ; i+= 4){ 2134 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2135 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2136 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2137 } 2138 crc &= 0xffff; 2139 } 2140 return((u_int16_t) crc); 2141} 2142 2143static int 2144fw_bmr(struct firewire_comm *fc) 2145{ 2146 struct fw_device fwdev; 2147 union fw_self_id *self_id; 2148 int cmstr; 2149 u_int32_t quad; 2150 2151 /* Check to see if the current root node is cycle master capable */ 2152 self_id = &fc->topology_map->self_id[fc->max_node]; 2153 if (fc->max_node > 0) { 2154 /* XXX check cmc bit of businfo block rather than contender */ 2155 if (self_id->p0.link_active && self_id->p0.contender) 2156 cmstr = fc->max_node; 2157 else { 2158 device_printf(fc->bdev, 2159 "root node is not cycle master capable\n"); 2160 /* XXX shall we be the cycle master? */ 2161 cmstr = fc->nodeid; 2162 /* XXX need bus reset */ 2163 } 2164 } else 2165 cmstr = -1; 2166 2167 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2168 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2169 /* We are not the bus manager */ 2170 printf("\n"); 2171 return(0); 2172 } 2173 printf("(me)\n"); 2174 2175 /* Optimize gapcount */ 2176 if(fc->max_hop <= MAX_GAPHOP ) 2177 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2178 /* If we are the cycle master, nothing to do */ 2179 if (cmstr == fc->nodeid || cmstr == -1) 2180 return 0; 2181 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2182 bzero(&fwdev, sizeof(fwdev)); 2183 fwdev.fc = fc; 2184 fwdev.dst = cmstr; 2185 fwdev.speed = 0; 2186 fwdev.maxrec = 8; /* 512 */ 2187 fwdev.status = FWDEVINIT; 2188 /* Set cmstr bit on the cycle master */ 2189 quad = htonl(1 << 8); 2190 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2191 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2192 2193 return 0; 2194} 2195 2196static int 2197fw_modevent(module_t mode, int type, void *data) 2198{ 2199 int err = 0; 2200#if __FreeBSD_version >= 500000 2201 static eventhandler_tag fwdev_ehtag = NULL; 2202#endif 2203 2204 switch (type) { 2205 case MOD_LOAD: 2206#if __FreeBSD_version >= 500000 2207 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2208 fwdev_clone, 0, 1000); 2209#endif 2210 break; 2211 case MOD_UNLOAD: 2212#if __FreeBSD_version >= 500000 2213 if (fwdev_ehtag != NULL) 2214 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2215#endif 2216 break; 2217 case MOD_SHUTDOWN: 2218 break; 2219 } 2220 return (err); 2221} 2222 2223 2224DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2225MODULE_VERSION(firewire, 1); 2226