fwohci.c revision 258780
1/*- 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/fwohci.c 258780 2013-11-30 22:17:27Z eadler $ 35 * 36 */ 37 38#define ATRQ_CH 0 39#define ATRS_CH 1 40#define ARRQ_CH 2 41#define ARRS_CH 3 42#define ITX_CH 4 43#define IRX_CH 0x24 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/mbuf.h> 48#include <sys/malloc.h> 49#include <sys/sockio.h> 50#include <sys/sysctl.h> 51#include <sys/bus.h> 52#include <sys/kernel.h> 53#include <sys/conf.h> 54#include <sys/endian.h> 55#include <sys/kdb.h> 56 57#include <machine/bus.h> 58 59#if defined(__DragonFly__) || __FreeBSD_version < 500000 60#include <machine/clock.h> /* for DELAY() */ 61#endif 62 63#ifdef __DragonFly__ 64#include "firewire.h" 65#include "firewirereg.h" 66#include "fwdma.h" 67#include "fwohcireg.h" 68#include "fwohcivar.h" 69#include "firewire_phy.h" 70#else 71#include <dev/firewire/firewire.h> 72#include <dev/firewire/firewirereg.h> 73#include <dev/firewire/fwdma.h> 74#include <dev/firewire/fwohcireg.h> 75#include <dev/firewire/fwohcivar.h> 76#include <dev/firewire/firewire_phy.h> 77#endif 78 79#undef OHCI_DEBUG 80 81static int nocyclemaster = 0; 82int firewire_phydma_enable = 1; 83SYSCTL_DECL(_hw_firewire); 84SYSCTL_INT(_hw_firewire, OID_AUTO, nocyclemaster, CTLFLAG_RW, &nocyclemaster, 0, 85 "Do not send cycle start packets"); 86SYSCTL_INT(_hw_firewire, OID_AUTO, phydma_enable, CTLFLAG_RW, 87 &firewire_phydma_enable, 1, "Allow physical request DMA from firewire"); 88TUNABLE_INT("hw.firewire.phydma_enable", &firewire_phydma_enable); 89 90static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL", 91 "STOR","LOAD","NOP ","STOP",}; 92 93static char dbkey[8][0x10]={"ST0", "ST1","ST2","ST3", 94 "UNDEF","REG","SYS","DEV"}; 95static char dbcond[4][0x10]={"NEV","C=1", "C=0", "ALL"}; 96char fwohcicode[32][0x20]={ 97 "No stat","Undef","long","miss Ack err", 98 "FIFO underrun","FIFO overrun","desc err", "data read err", 99 "data write err","bus reset","timeout","tcode err", 100 "Undef","Undef","unknown event","flushed", 101 "Undef","ack complete","ack pend","Undef", 102 "ack busy_X","ack busy_A","ack busy_B","Undef", 103 "Undef","Undef","Undef","ack tardy", 104 "Undef","ack data_err","ack type_err",""}; 105 106#define MAX_SPEED 3 107extern char *linkspeed[]; 108uint32_t tagbit[4] = { 1 << 28, 1 << 29, 1 << 30, 1 << 31}; 109 110static struct tcode_info tinfo[] = { 111/* hdr_len block flag valid_response */ 112/* 0 WREQQ */ {16, FWTI_REQ | FWTI_TLABEL, FWTCODE_WRES}, 113/* 1 WREQB */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY, FWTCODE_WRES}, 114/* 2 WRES */ {12, FWTI_RES, 0xff}, 115/* 3 XXX */ { 0, 0, 0xff}, 116/* 4 RREQQ */ {12, FWTI_REQ | FWTI_TLABEL, FWTCODE_RRESQ}, 117/* 5 RREQB */ {16, FWTI_REQ | FWTI_TLABEL, FWTCODE_RRESB}, 118/* 6 RRESQ */ {16, FWTI_RES, 0xff}, 119/* 7 RRESB */ {16, FWTI_RES | FWTI_BLOCK_ASY, 0xff}, 120/* 8 CYCS */ { 0, 0, 0xff}, 121/* 9 LREQ */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY, FWTCODE_LRES}, 122/* a STREAM */ { 4, FWTI_REQ | FWTI_BLOCK_STR, 0xff}, 123/* b LRES */ {16, FWTI_RES | FWTI_BLOCK_ASY, 0xff}, 124/* c XXX */ { 0, 0, 0xff}, 125/* d XXX */ { 0, 0, 0xff}, 126/* e PHY */ {12, FWTI_REQ, 0xff}, 127/* f XXX */ { 0, 0, 0xff} 128}; 129 130#define OHCI_WRITE_SIGMASK 0xffff0000 131#define OHCI_READ_SIGMASK 0xffff0000 132 133#define OWRITE(sc, r, x) bus_space_write_4((sc)->bst, (sc)->bsh, (r), (x)) 134#define OREAD(sc, r) bus_space_read_4((sc)->bst, (sc)->bsh, (r)) 135 136static void fwohci_ibr (struct firewire_comm *); 137static void fwohci_db_init (struct fwohci_softc *, struct fwohci_dbch *); 138static void fwohci_db_free (struct fwohci_dbch *); 139static void fwohci_arcv (struct fwohci_softc *, struct fwohci_dbch *, int); 140static void fwohci_txd (struct fwohci_softc *, struct fwohci_dbch *); 141static void fwohci_start_atq (struct firewire_comm *); 142static void fwohci_start_ats (struct firewire_comm *); 143static void fwohci_start (struct fwohci_softc *, struct fwohci_dbch *); 144static uint32_t fwphy_wrdata ( struct fwohci_softc *, uint32_t, uint32_t); 145static uint32_t fwphy_rddata ( struct fwohci_softc *, uint32_t); 146static int fwohci_rx_enable (struct fwohci_softc *, struct fwohci_dbch *); 147static int fwohci_tx_enable (struct fwohci_softc *, struct fwohci_dbch *); 148static int fwohci_irx_enable (struct firewire_comm *, int); 149static int fwohci_irx_disable (struct firewire_comm *, int); 150#if BYTE_ORDER == BIG_ENDIAN 151static void fwohci_irx_post (struct firewire_comm *, uint32_t *); 152#endif 153static int fwohci_itxbuf_enable (struct firewire_comm *, int); 154static int fwohci_itx_disable (struct firewire_comm *, int); 155static void fwohci_timeout (void *); 156static void fwohci_set_intr (struct firewire_comm *, int); 157 158static int fwohci_add_rx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int, struct fwdma_alloc *); 159static int fwohci_add_tx_buf (struct fwohci_dbch *, struct fwohcidb_tr *, int); 160static void dump_db (struct fwohci_softc *, uint32_t); 161static void print_db (struct fwohcidb_tr *, struct fwohcidb *, uint32_t , uint32_t); 162static void dump_dma (struct fwohci_softc *, uint32_t); 163static uint32_t fwohci_cyctimer (struct firewire_comm *); 164static void fwohci_rbuf_update (struct fwohci_softc *, int); 165static void fwohci_tbuf_update (struct fwohci_softc *, int); 166void fwohci_txbufdb (struct fwohci_softc *, int , struct fw_bulkxfer *); 167static void fwohci_task_busreset(void *, int); 168static void fwohci_task_sid(void *, int); 169static void fwohci_task_dma(void *, int); 170 171/* 172 * memory allocated for DMA programs 173 */ 174#define DMA_PROG_ALLOC (8 * PAGE_SIZE) 175 176#define NDB FWMAXQUEUE 177 178#define OHCI_VERSION 0x00 179#define OHCI_ATRETRY 0x08 180#define OHCI_CROMHDR 0x18 181#define OHCI_BUS_OPT 0x20 182#define OHCI_BUSIRMC (1U << 31) 183#define OHCI_BUSCMC (1 << 30) 184#define OHCI_BUSISC (1 << 29) 185#define OHCI_BUSBMC (1 << 28) 186#define OHCI_BUSPMC (1 << 27) 187#define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\ 188 OHCI_BUSBMC | OHCI_BUSPMC 189 190#define OHCI_EUID_HI 0x24 191#define OHCI_EUID_LO 0x28 192 193#define OHCI_CROMPTR 0x34 194#define OHCI_HCCCTL 0x50 195#define OHCI_HCCCTLCLR 0x54 196#define OHCI_AREQHI 0x100 197#define OHCI_AREQHICLR 0x104 198#define OHCI_AREQLO 0x108 199#define OHCI_AREQLOCLR 0x10c 200#define OHCI_PREQHI 0x110 201#define OHCI_PREQHICLR 0x114 202#define OHCI_PREQLO 0x118 203#define OHCI_PREQLOCLR 0x11c 204#define OHCI_PREQUPPER 0x120 205 206#define OHCI_SID_BUF 0x64 207#define OHCI_SID_CNT 0x68 208#define OHCI_SID_ERR (1U << 31) 209#define OHCI_SID_CNT_MASK 0xffc 210 211#define OHCI_IT_STAT 0x90 212#define OHCI_IT_STATCLR 0x94 213#define OHCI_IT_MASK 0x98 214#define OHCI_IT_MASKCLR 0x9c 215 216#define OHCI_IR_STAT 0xa0 217#define OHCI_IR_STATCLR 0xa4 218#define OHCI_IR_MASK 0xa8 219#define OHCI_IR_MASKCLR 0xac 220 221#define OHCI_LNKCTL 0xe0 222#define OHCI_LNKCTLCLR 0xe4 223 224#define OHCI_PHYACCESS 0xec 225#define OHCI_CYCLETIMER 0xf0 226 227#define OHCI_DMACTL(off) (off) 228#define OHCI_DMACTLCLR(off) (off + 4) 229#define OHCI_DMACMD(off) (off + 0xc) 230#define OHCI_DMAMATCH(off) (off + 0x10) 231 232#define OHCI_ATQOFF 0x180 233#define OHCI_ATQCTL OHCI_ATQOFF 234#define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4) 235#define OHCI_ATQCMD (OHCI_ATQOFF + 0xc) 236#define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10) 237 238#define OHCI_ATSOFF 0x1a0 239#define OHCI_ATSCTL OHCI_ATSOFF 240#define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4) 241#define OHCI_ATSCMD (OHCI_ATSOFF + 0xc) 242#define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10) 243 244#define OHCI_ARQOFF 0x1c0 245#define OHCI_ARQCTL OHCI_ARQOFF 246#define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4) 247#define OHCI_ARQCMD (OHCI_ARQOFF + 0xc) 248#define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10) 249 250#define OHCI_ARSOFF 0x1e0 251#define OHCI_ARSCTL OHCI_ARSOFF 252#define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4) 253#define OHCI_ARSCMD (OHCI_ARSOFF + 0xc) 254#define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10) 255 256#define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH)) 257#define OHCI_ITCTL(CH) (OHCI_ITOFF(CH)) 258#define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4) 259#define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc) 260 261#define OHCI_IROFF(CH) (0x400 + 0x20 * (CH)) 262#define OHCI_IRCTL(CH) (OHCI_IROFF(CH)) 263#define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4) 264#define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc) 265#define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10) 266 267d_ioctl_t fwohci_ioctl; 268 269/* 270 * Communication with PHY device 271 */ 272/* XXX need lock for phy access */ 273static uint32_t 274fwphy_wrdata( struct fwohci_softc *sc, uint32_t addr, uint32_t data) 275{ 276 uint32_t fun; 277 278 addr &= 0xf; 279 data &= 0xff; 280 281 fun = (PHYDEV_WRCMD | (addr << PHYDEV_REGADDR) | (data << PHYDEV_WRDATA)); 282 OWRITE(sc, OHCI_PHYACCESS, fun); 283 DELAY(100); 284 285 return(fwphy_rddata( sc, addr)); 286} 287 288static uint32_t 289fwohci_set_bus_manager(struct firewire_comm *fc, u_int node) 290{ 291 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 292 int i; 293 uint32_t bm; 294 295#define OHCI_CSR_DATA 0x0c 296#define OHCI_CSR_COMP 0x10 297#define OHCI_CSR_CONT 0x14 298#define OHCI_BUS_MANAGER_ID 0 299 300 OWRITE(sc, OHCI_CSR_DATA, node); 301 OWRITE(sc, OHCI_CSR_COMP, 0x3f); 302 OWRITE(sc, OHCI_CSR_CONT, OHCI_BUS_MANAGER_ID); 303 for (i = 0; !(OREAD(sc, OHCI_CSR_CONT) & (1<<31)) && (i < 1000); i++) 304 DELAY(10); 305 bm = OREAD(sc, OHCI_CSR_DATA); 306 if((bm & 0x3f) == 0x3f) 307 bm = node; 308 if (firewire_debug) 309 device_printf(sc->fc.dev, "%s: %d->%d (loop=%d)\n", 310 __func__, bm, node, i); 311 312 return(bm); 313} 314 315static uint32_t 316fwphy_rddata(struct fwohci_softc *sc, u_int addr) 317{ 318 uint32_t fun, stat; 319 u_int i, retry = 0; 320 321 addr &= 0xf; 322#define MAX_RETRY 100 323again: 324 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_REG_FAIL); 325 fun = PHYDEV_RDCMD | (addr << PHYDEV_REGADDR); 326 OWRITE(sc, OHCI_PHYACCESS, fun); 327 for ( i = 0 ; i < MAX_RETRY ; i ++ ){ 328 fun = OREAD(sc, OHCI_PHYACCESS); 329 if ((fun & PHYDEV_RDCMD) == 0 && (fun & PHYDEV_RDDONE) != 0) 330 break; 331 DELAY(100); 332 } 333 if(i >= MAX_RETRY) { 334 if (firewire_debug) 335 device_printf(sc->fc.dev, "%s: failed(1).\n", __func__); 336 if (++retry < MAX_RETRY) { 337 DELAY(100); 338 goto again; 339 } 340 } 341 /* Make sure that SCLK is started */ 342 stat = OREAD(sc, FWOHCI_INTSTAT); 343 if ((stat & OHCI_INT_REG_FAIL) != 0 || 344 ((fun >> PHYDEV_REGADDR) & 0xf) != addr) { 345 if (firewire_debug) 346 device_printf(sc->fc.dev, "%s: failed(2).\n", __func__); 347 if (++retry < MAX_RETRY) { 348 DELAY(100); 349 goto again; 350 } 351 } 352 if (firewire_debug > 1 || retry >= MAX_RETRY) 353 device_printf(sc->fc.dev, 354 "%s:: 0x%x loop=%d, retry=%d\n", 355 __func__, addr, i, retry); 356#undef MAX_RETRY 357 return((fun >> PHYDEV_RDDATA )& 0xff); 358} 359/* Device specific ioctl. */ 360int 361fwohci_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td) 362{ 363 struct firewire_softc *sc; 364 struct fwohci_softc *fc; 365 int unit = DEV2UNIT(dev); 366 int err = 0; 367 struct fw_reg_req_t *reg = (struct fw_reg_req_t *) data; 368 uint32_t *dmach = (uint32_t *) data; 369 370 sc = devclass_get_softc(firewire_devclass, unit); 371 if(sc == NULL){ 372 return(EINVAL); 373 } 374 fc = (struct fwohci_softc *)sc->fc; 375 376 if (!data) 377 return(EINVAL); 378 379 switch (cmd) { 380 case FWOHCI_WRREG: 381#define OHCI_MAX_REG 0x800 382 if(reg->addr <= OHCI_MAX_REG){ 383 OWRITE(fc, reg->addr, reg->data); 384 reg->data = OREAD(fc, reg->addr); 385 }else{ 386 err = EINVAL; 387 } 388 break; 389 case FWOHCI_RDREG: 390 if(reg->addr <= OHCI_MAX_REG){ 391 reg->data = OREAD(fc, reg->addr); 392 }else{ 393 err = EINVAL; 394 } 395 break; 396/* Read DMA descriptors for debug */ 397 case DUMPDMA: 398 if(*dmach <= OHCI_MAX_DMA_CH ){ 399 dump_dma(fc, *dmach); 400 dump_db(fc, *dmach); 401 }else{ 402 err = EINVAL; 403 } 404 break; 405/* Read/Write Phy registers */ 406#define OHCI_MAX_PHY_REG 0xf 407 case FWOHCI_RDPHYREG: 408 if (reg->addr <= OHCI_MAX_PHY_REG) 409 reg->data = fwphy_rddata(fc, reg->addr); 410 else 411 err = EINVAL; 412 break; 413 case FWOHCI_WRPHYREG: 414 if (reg->addr <= OHCI_MAX_PHY_REG) 415 reg->data = fwphy_wrdata(fc, reg->addr, reg->data); 416 else 417 err = EINVAL; 418 break; 419 default: 420 err = EINVAL; 421 break; 422 } 423 return err; 424} 425 426static int 427fwohci_probe_phy(struct fwohci_softc *sc, device_t dev) 428{ 429 uint32_t reg, reg2; 430 int e1394a = 1; 431/* 432 * probe PHY parameters 433 * 0. to prove PHY version, whether compliance of 1394a. 434 * 1. to probe maximum speed supported by the PHY and 435 * number of port supported by core-logic. 436 * It is not actually available port on your PC . 437 */ 438 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS); 439 DELAY(500); 440 441 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 442 443 if((reg >> 5) != 7 ){ 444 sc->fc.mode &= ~FWPHYASYST; 445 sc->fc.nport = reg & FW_PHY_NP; 446 sc->fc.speed = reg & FW_PHY_SPD >> 6; 447 if (sc->fc.speed > MAX_SPEED) { 448 device_printf(dev, "invalid speed %d (fixed to %d).\n", 449 sc->fc.speed, MAX_SPEED); 450 sc->fc.speed = MAX_SPEED; 451 } 452 device_printf(dev, 453 "Phy 1394 only %s, %d ports.\n", 454 linkspeed[sc->fc.speed], sc->fc.nport); 455 }else{ 456 reg2 = fwphy_rddata(sc, FW_PHY_ESPD_REG); 457 sc->fc.mode |= FWPHYASYST; 458 sc->fc.nport = reg & FW_PHY_NP; 459 sc->fc.speed = (reg2 & FW_PHY_ESPD) >> 5; 460 if (sc->fc.speed > MAX_SPEED) { 461 device_printf(dev, "invalid speed %d (fixed to %d).\n", 462 sc->fc.speed, MAX_SPEED); 463 sc->fc.speed = MAX_SPEED; 464 } 465 device_printf(dev, 466 "Phy 1394a available %s, %d ports.\n", 467 linkspeed[sc->fc.speed], sc->fc.nport); 468 469 /* check programPhyEnable */ 470 reg2 = fwphy_rddata(sc, 5); 471#if 0 472 if (e1394a && (OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_PRPHY)) { 473#else /* XXX force to enable 1394a */ 474 if (e1394a) { 475#endif 476 if (firewire_debug) 477 device_printf(dev, 478 "Enable 1394a Enhancements\n"); 479 /* enable EAA EMC */ 480 reg2 |= 0x03; 481 /* set aPhyEnhanceEnable */ 482 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_PHYEN); 483 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_PRPHY); 484 } else { 485 /* for safe */ 486 reg2 &= ~0x83; 487 } 488 reg2 = fwphy_wrdata(sc, 5, reg2); 489 } 490 491 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 492 if((reg >> 5) == 7 ){ 493 reg = fwphy_rddata(sc, 4); 494 reg |= 1 << 6; 495 fwphy_wrdata(sc, 4, reg); 496 reg = fwphy_rddata(sc, 4); 497 } 498 return 0; 499} 500 501 502void 503fwohci_reset(struct fwohci_softc *sc, device_t dev) 504{ 505 int i, max_rec, speed; 506 uint32_t reg, reg2; 507 struct fwohcidb_tr *db_tr; 508 509 /* Disable interrupts */ 510 OWRITE(sc, FWOHCI_INTMASKCLR, ~0); 511 512 /* Now stopping all DMA channels */ 513 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 514 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 515 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 516 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 517 518 OWRITE(sc, OHCI_IR_MASKCLR, ~0); 519 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 520 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 521 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 522 } 523 524 /* FLUSH FIFO and reset Transmitter/Reciever */ 525 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 526 if (firewire_debug) 527 device_printf(dev, "resetting OHCI..."); 528 i = 0; 529 while(OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_RESET) { 530 if (i++ > 100) break; 531 DELAY(1000); 532 } 533 if (firewire_debug) 534 printf("done (loop=%d)\n", i); 535 536 /* Probe phy */ 537 fwohci_probe_phy(sc, dev); 538 539 /* Probe link */ 540 reg = OREAD(sc, OHCI_BUS_OPT); 541 reg2 = reg | OHCI_BUSFNC; 542 max_rec = (reg & 0x0000f000) >> 12; 543 speed = (reg & 0x00000007); 544 device_printf(dev, "Link %s, max_rec %d bytes.\n", 545 linkspeed[speed], MAXREC(max_rec)); 546 /* XXX fix max_rec */ 547 sc->fc.maxrec = sc->fc.speed + 8; 548 if (max_rec != sc->fc.maxrec) { 549 reg2 = (reg2 & 0xffff0fff) | (sc->fc.maxrec << 12); 550 device_printf(dev, "max_rec %d -> %d\n", 551 MAXREC(max_rec), MAXREC(sc->fc.maxrec)); 552 } 553 if (firewire_debug) 554 device_printf(dev, "BUS_OPT 0x%x -> 0x%x\n", reg, reg2); 555 OWRITE(sc, OHCI_BUS_OPT, reg2); 556 557 /* Initialize registers */ 558 OWRITE(sc, OHCI_CROMHDR, sc->fc.config_rom[0]); 559 OWRITE(sc, OHCI_CROMPTR, sc->crom_dma.bus_addr); 560 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_BIGEND); 561 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_POSTWR); 562 OWRITE(sc, OHCI_SID_BUF, sc->sid_dma.bus_addr); 563 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_SID); 564 565 /* Enable link */ 566 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LINKEN); 567 568 /* Force to start async RX DMA */ 569 sc->arrq.xferq.flag &= ~FWXFERQ_RUNNING; 570 sc->arrs.xferq.flag &= ~FWXFERQ_RUNNING; 571 fwohci_rx_enable(sc, &sc->arrq); 572 fwohci_rx_enable(sc, &sc->arrs); 573 574 /* Initialize async TX */ 575 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 576 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 577 578 /* AT Retries */ 579 OWRITE(sc, FWOHCI_RETRY, 580 /* CycleLimit PhyRespRetries ATRespRetries ATReqRetries */ 581 (0xffff << 16 ) | (0x0f << 8) | (0x0f << 4) | 0x0f) ; 582 583 sc->atrq.top = STAILQ_FIRST(&sc->atrq.db_trq); 584 sc->atrs.top = STAILQ_FIRST(&sc->atrs.db_trq); 585 sc->atrq.bottom = sc->atrq.top; 586 sc->atrs.bottom = sc->atrs.top; 587 588 for( i = 0, db_tr = sc->atrq.top; i < sc->atrq.ndb ; 589 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 590 db_tr->xfer = NULL; 591 } 592 for( i = 0, db_tr = sc->atrs.top; i < sc->atrs.ndb ; 593 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 594 db_tr->xfer = NULL; 595 } 596 597 598 /* Enable interrupts */ 599 sc->intmask = (OHCI_INT_ERR | OHCI_INT_PHY_SID 600 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 601 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 602 | OHCI_INT_PHY_BUS_R | OHCI_INT_PW_ERR); 603 sc->intmask |= OHCI_INT_DMA_IR | OHCI_INT_DMA_IT; 604 sc->intmask |= OHCI_INT_CYC_LOST | OHCI_INT_PHY_INT; 605 OWRITE(sc, FWOHCI_INTMASK, sc->intmask); 606 fwohci_set_intr(&sc->fc, 1); 607 608} 609 610int 611fwohci_init(struct fwohci_softc *sc, device_t dev) 612{ 613 int i, mver; 614 uint32_t reg; 615 uint8_t ui[8]; 616 617/* OHCI version */ 618 reg = OREAD(sc, OHCI_VERSION); 619 mver = (reg >> 16) & 0xff; 620 device_printf(dev, "OHCI version %x.%x (ROM=%d)\n", 621 mver, reg & 0xff, (reg>>24) & 1); 622 if (mver < 1 || mver > 9) { 623 device_printf(dev, "invalid OHCI version\n"); 624 return (ENXIO); 625 } 626 627/* Available Isochronous DMA channel probe */ 628 OWRITE(sc, OHCI_IT_MASK, 0xffffffff); 629 OWRITE(sc, OHCI_IR_MASK, 0xffffffff); 630 reg = OREAD(sc, OHCI_IT_MASK) & OREAD(sc, OHCI_IR_MASK); 631 OWRITE(sc, OHCI_IT_MASKCLR, 0xffffffff); 632 OWRITE(sc, OHCI_IR_MASKCLR, 0xffffffff); 633 for (i = 0; i < 0x20; i++) 634 if ((reg & (1 << i)) == 0) 635 break; 636 sc->fc.nisodma = i; 637 device_printf(dev, "No. of Isochronous channels is %d.\n", i); 638 if (i == 0) 639 return (ENXIO); 640 641 sc->fc.arq = &sc->arrq.xferq; 642 sc->fc.ars = &sc->arrs.xferq; 643 sc->fc.atq = &sc->atrq.xferq; 644 sc->fc.ats = &sc->atrs.xferq; 645 646 sc->arrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 647 sc->arrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 648 sc->atrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 649 sc->atrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 650 651 sc->arrq.xferq.start = NULL; 652 sc->arrs.xferq.start = NULL; 653 sc->atrq.xferq.start = fwohci_start_atq; 654 sc->atrs.xferq.start = fwohci_start_ats; 655 656 sc->arrq.xferq.buf = NULL; 657 sc->arrs.xferq.buf = NULL; 658 sc->atrq.xferq.buf = NULL; 659 sc->atrs.xferq.buf = NULL; 660 661 sc->arrq.xferq.dmach = -1; 662 sc->arrs.xferq.dmach = -1; 663 sc->atrq.xferq.dmach = -1; 664 sc->atrs.xferq.dmach = -1; 665 666 sc->arrq.ndesc = 1; 667 sc->arrs.ndesc = 1; 668 sc->atrq.ndesc = 8; /* equal to maximum of mbuf chains */ 669 sc->atrs.ndesc = 2; 670 671 sc->arrq.ndb = NDB; 672 sc->arrs.ndb = NDB / 2; 673 sc->atrq.ndb = NDB; 674 sc->atrs.ndb = NDB / 2; 675 676 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 677 sc->fc.it[i] = &sc->it[i].xferq; 678 sc->fc.ir[i] = &sc->ir[i].xferq; 679 sc->it[i].xferq.dmach = i; 680 sc->ir[i].xferq.dmach = i; 681 sc->it[i].ndb = 0; 682 sc->ir[i].ndb = 0; 683 } 684 685 sc->fc.tcode = tinfo; 686 sc->fc.dev = dev; 687 688 sc->fc.config_rom = fwdma_malloc(&sc->fc, CROMSIZE, CROMSIZE, 689 &sc->crom_dma, BUS_DMA_WAITOK | BUS_DMA_COHERENT); 690 if(sc->fc.config_rom == NULL){ 691 device_printf(dev, "config_rom alloc failed."); 692 return ENOMEM; 693 } 694 695#if 0 696 bzero(&sc->fc.config_rom[0], CROMSIZE); 697 sc->fc.config_rom[1] = 0x31333934; 698 sc->fc.config_rom[2] = 0xf000a002; 699 sc->fc.config_rom[3] = OREAD(sc, OHCI_EUID_HI); 700 sc->fc.config_rom[4] = OREAD(sc, OHCI_EUID_LO); 701 sc->fc.config_rom[5] = 0; 702 sc->fc.config_rom[0] = (4 << 24) | (5 << 16); 703 704 sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4); 705#endif 706 707 708/* SID recieve buffer must align 2^11 */ 709#define OHCI_SIDSIZE (1 << 11) 710 sc->sid_buf = fwdma_malloc(&sc->fc, OHCI_SIDSIZE, OHCI_SIDSIZE, 711 &sc->sid_dma, BUS_DMA_WAITOK | BUS_DMA_COHERENT); 712 if (sc->sid_buf == NULL) { 713 device_printf(dev, "sid_buf alloc failed."); 714 return ENOMEM; 715 } 716 717 fwdma_malloc(&sc->fc, sizeof(uint32_t), sizeof(uint32_t), 718 &sc->dummy_dma, BUS_DMA_WAITOK); 719 720 if (sc->dummy_dma.v_addr == NULL) { 721 device_printf(dev, "dummy_dma alloc failed."); 722 return ENOMEM; 723 } 724 725 fwohci_db_init(sc, &sc->arrq); 726 if ((sc->arrq.flags & FWOHCI_DBCH_INIT) == 0) 727 return ENOMEM; 728 729 fwohci_db_init(sc, &sc->arrs); 730 if ((sc->arrs.flags & FWOHCI_DBCH_INIT) == 0) 731 return ENOMEM; 732 733 fwohci_db_init(sc, &sc->atrq); 734 if ((sc->atrq.flags & FWOHCI_DBCH_INIT) == 0) 735 return ENOMEM; 736 737 fwohci_db_init(sc, &sc->atrs); 738 if ((sc->atrs.flags & FWOHCI_DBCH_INIT) == 0) 739 return ENOMEM; 740 741 sc->fc.eui.hi = OREAD(sc, FWOHCIGUID_H); 742 sc->fc.eui.lo = OREAD(sc, FWOHCIGUID_L); 743 for( i = 0 ; i < 8 ; i ++) 744 ui[i] = FW_EUI64_BYTE(&sc->fc.eui,i); 745 device_printf(dev, "EUI64 %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 746 ui[0], ui[1], ui[2], ui[3], ui[4], ui[5], ui[6], ui[7]); 747 748 sc->fc.ioctl = fwohci_ioctl; 749 sc->fc.cyctimer = fwohci_cyctimer; 750 sc->fc.set_bmr = fwohci_set_bus_manager; 751 sc->fc.ibr = fwohci_ibr; 752 sc->fc.irx_enable = fwohci_irx_enable; 753 sc->fc.irx_disable = fwohci_irx_disable; 754 755 sc->fc.itx_enable = fwohci_itxbuf_enable; 756 sc->fc.itx_disable = fwohci_itx_disable; 757#if BYTE_ORDER == BIG_ENDIAN 758 sc->fc.irx_post = fwohci_irx_post; 759#else 760 sc->fc.irx_post = NULL; 761#endif 762 sc->fc.itx_post = NULL; 763 sc->fc.timeout = fwohci_timeout; 764 sc->fc.poll = fwohci_poll; 765 sc->fc.set_intr = fwohci_set_intr; 766 767 sc->intmask = sc->irstat = sc->itstat = 0; 768 769 /* Init task queue */ 770 sc->fc.taskqueue = taskqueue_create_fast("fw_taskq", M_WAITOK, 771 taskqueue_thread_enqueue, &sc->fc.taskqueue); 772 taskqueue_start_threads(&sc->fc.taskqueue, 1, PI_NET, "fw%d_taskq", 773 device_get_unit(dev)); 774 TASK_INIT(&sc->fwohci_task_busreset, 2, fwohci_task_busreset, sc); 775 TASK_INIT(&sc->fwohci_task_sid, 1, fwohci_task_sid, sc); 776 TASK_INIT(&sc->fwohci_task_dma, 0, fwohci_task_dma, sc); 777 778 fw_init(&sc->fc); 779 fwohci_reset(sc, dev); 780 781 return 0; 782} 783 784void 785fwohci_timeout(void *arg) 786{ 787 struct fwohci_softc *sc; 788 789 sc = (struct fwohci_softc *)arg; 790} 791 792uint32_t 793fwohci_cyctimer(struct firewire_comm *fc) 794{ 795 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 796 return(OREAD(sc, OHCI_CYCLETIMER)); 797} 798 799int 800fwohci_detach(struct fwohci_softc *sc, device_t dev) 801{ 802 int i; 803 804 if (sc->sid_buf != NULL) 805 fwdma_free(&sc->fc, &sc->sid_dma); 806 if (sc->fc.config_rom != NULL) 807 fwdma_free(&sc->fc, &sc->crom_dma); 808 809 fwohci_db_free(&sc->arrq); 810 fwohci_db_free(&sc->arrs); 811 812 fwohci_db_free(&sc->atrq); 813 fwohci_db_free(&sc->atrs); 814 815 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 816 fwohci_db_free(&sc->it[i]); 817 fwohci_db_free(&sc->ir[i]); 818 } 819 if (sc->fc.taskqueue != NULL) { 820 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_busreset); 821 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_sid); 822 taskqueue_drain(sc->fc.taskqueue, &sc->fwohci_task_dma); 823 taskqueue_drain(sc->fc.taskqueue, &sc->fc.task_timeout); 824 taskqueue_free(sc->fc.taskqueue); 825 sc->fc.taskqueue = NULL; 826 } 827 828 return 0; 829} 830 831#define LAST_DB(dbtr, db) do { \ 832 struct fwohcidb_tr *_dbtr = (dbtr); \ 833 int _cnt = _dbtr->dbcnt; \ 834 db = &_dbtr->db[ (_cnt > 2) ? (_cnt -1) : 0]; \ 835} while (0) 836 837static void 838fwohci_execute_db(void *arg, bus_dma_segment_t *segs, int nseg, int error) 839{ 840 struct fwohcidb_tr *db_tr; 841 struct fwohcidb *db; 842 bus_dma_segment_t *s; 843 int i; 844 845 db_tr = (struct fwohcidb_tr *)arg; 846 db = &db_tr->db[db_tr->dbcnt]; 847 if (error) { 848 if (firewire_debug || error != EFBIG) 849 printf("fwohci_execute_db: error=%d\n", error); 850 return; 851 } 852 for (i = 0; i < nseg; i++) { 853 s = &segs[i]; 854 FWOHCI_DMA_WRITE(db->db.desc.addr, s->ds_addr); 855 FWOHCI_DMA_WRITE(db->db.desc.cmd, s->ds_len); 856 FWOHCI_DMA_WRITE(db->db.desc.res, 0); 857 db++; 858 db_tr->dbcnt++; 859 } 860} 861 862static void 863fwohci_execute_db2(void *arg, bus_dma_segment_t *segs, int nseg, 864 bus_size_t size, int error) 865{ 866 fwohci_execute_db(arg, segs, nseg, error); 867} 868 869static void 870fwohci_start(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 871{ 872 int i, s; 873 int tcode, hdr_len, pl_off; 874 int fsegment = -1; 875 uint32_t off; 876 struct fw_xfer *xfer; 877 struct fw_pkt *fp; 878 struct fwohci_txpkthdr *ohcifp; 879 struct fwohcidb_tr *db_tr; 880 struct fwohcidb *db; 881 uint32_t *ld; 882 struct tcode_info *info; 883 static int maxdesc=0; 884 885 FW_GLOCK_ASSERT(&sc->fc); 886 887 if(&sc->atrq == dbch){ 888 off = OHCI_ATQOFF; 889 }else if(&sc->atrs == dbch){ 890 off = OHCI_ATSOFF; 891 }else{ 892 return; 893 } 894 895 if (dbch->flags & FWOHCI_DBCH_FULL) 896 return; 897 898 s = splfw(); 899 db_tr = dbch->top; 900txloop: 901 xfer = STAILQ_FIRST(&dbch->xferq.q); 902 if(xfer == NULL){ 903 goto kick; 904 } 905#if 0 906 if(dbch->xferq.queued == 0 ){ 907 device_printf(sc->fc.dev, "TX queue empty\n"); 908 } 909#endif 910 STAILQ_REMOVE_HEAD(&dbch->xferq.q, link); 911 db_tr->xfer = xfer; 912 xfer->flag = FWXF_START; 913 914 fp = &xfer->send.hdr; 915 tcode = fp->mode.common.tcode; 916 917 ohcifp = (struct fwohci_txpkthdr *) db_tr->db[1].db.immed; 918 info = &tinfo[tcode]; 919 hdr_len = pl_off = info->hdr_len; 920 921 ld = &ohcifp->mode.ld[0]; 922 ld[0] = ld[1] = ld[2] = ld[3] = 0; 923 for( i = 0 ; i < pl_off ; i+= 4) 924 ld[i/4] = fp->mode.ld[i/4]; 925 926 ohcifp->mode.common.spd = xfer->send.spd & 0x7; 927 if (tcode == FWTCODE_STREAM ){ 928 hdr_len = 8; 929 ohcifp->mode.stream.len = fp->mode.stream.len; 930 } else if (tcode == FWTCODE_PHY) { 931 hdr_len = 12; 932 ld[1] = fp->mode.ld[1]; 933 ld[2] = fp->mode.ld[2]; 934 ohcifp->mode.common.spd = 0; 935 ohcifp->mode.common.tcode = FWOHCITCODE_PHY; 936 } else { 937 ohcifp->mode.asycomm.dst = fp->mode.hdr.dst; 938 ohcifp->mode.asycomm.srcbus = OHCI_ASYSRCBUS; 939 ohcifp->mode.asycomm.tlrt |= FWRETRY_X; 940 } 941 db = &db_tr->db[0]; 942 FWOHCI_DMA_WRITE(db->db.desc.cmd, 943 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len); 944 FWOHCI_DMA_WRITE(db->db.desc.addr, 0); 945 FWOHCI_DMA_WRITE(db->db.desc.res, 0); 946/* Specify bound timer of asy. responce */ 947 if(&sc->atrs == dbch){ 948 FWOHCI_DMA_WRITE(db->db.desc.res, 949 (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13)); 950 } 951#if BYTE_ORDER == BIG_ENDIAN 952 if (tcode == FWTCODE_WREQQ || tcode == FWTCODE_RRESQ) 953 hdr_len = 12; 954 for (i = 0; i < hdr_len/4; i ++) 955 FWOHCI_DMA_WRITE(ld[i], ld[i]); 956#endif 957 958again: 959 db_tr->dbcnt = 2; 960 db = &db_tr->db[db_tr->dbcnt]; 961 if (xfer->send.pay_len > 0) { 962 int err; 963 /* handle payload */ 964 if (xfer->mbuf == NULL) { 965 err = bus_dmamap_load(dbch->dmat, db_tr->dma_map, 966 &xfer->send.payload[0], xfer->send.pay_len, 967 fwohci_execute_db, db_tr, 968 /*flags*/0); 969 } else { 970 /* XXX we can handle only 6 (=8-2) mbuf chains */ 971 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map, 972 xfer->mbuf, 973 fwohci_execute_db2, db_tr, 974 /* flags */0); 975 if (err == EFBIG) { 976 struct mbuf *m0; 977 978 if (firewire_debug) 979 device_printf(sc->fc.dev, "EFBIG.\n"); 980 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 981 if (m0 != NULL) { 982 m_copydata(xfer->mbuf, 0, 983 xfer->mbuf->m_pkthdr.len, 984 mtod(m0, caddr_t)); 985 m0->m_len = m0->m_pkthdr.len = 986 xfer->mbuf->m_pkthdr.len; 987 m_freem(xfer->mbuf); 988 xfer->mbuf = m0; 989 goto again; 990 } 991 device_printf(sc->fc.dev, "m_getcl failed.\n"); 992 } 993 } 994 if (err) 995 printf("dmamap_load: err=%d\n", err); 996 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 997 BUS_DMASYNC_PREWRITE); 998#if 0 /* OHCI_OUTPUT_MODE == 0 */ 999 for (i = 2; i < db_tr->dbcnt; i++) 1000 FWOHCI_DMA_SET(db_tr->db[i].db.desc.cmd, 1001 OHCI_OUTPUT_MORE); 1002#endif 1003 } 1004 if (maxdesc < db_tr->dbcnt) { 1005 maxdesc = db_tr->dbcnt; 1006 if (firewire_debug) 1007 device_printf(sc->fc.dev, "%s: maxdesc %d\n", __func__, maxdesc); 1008 } 1009 /* last db */ 1010 LAST_DB(db_tr, db); 1011 FWOHCI_DMA_SET(db->db.desc.cmd, 1012 OHCI_OUTPUT_LAST | OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS); 1013 FWOHCI_DMA_WRITE(db->db.desc.depend, 1014 STAILQ_NEXT(db_tr, link)->bus_addr); 1015 1016 if(fsegment == -1 ) 1017 fsegment = db_tr->dbcnt; 1018 if (dbch->pdb_tr != NULL) { 1019 LAST_DB(dbch->pdb_tr, db); 1020 FWOHCI_DMA_SET(db->db.desc.depend, db_tr->dbcnt); 1021 } 1022 dbch->xferq.queued ++; 1023 dbch->pdb_tr = db_tr; 1024 db_tr = STAILQ_NEXT(db_tr, link); 1025 if(db_tr != dbch->bottom){ 1026 goto txloop; 1027 } else { 1028 device_printf(sc->fc.dev, "fwohci_start: lack of db_trq\n"); 1029 dbch->flags |= FWOHCI_DBCH_FULL; 1030 } 1031kick: 1032 /* kick asy q */ 1033 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1034 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1035 1036 if(dbch->xferq.flag & FWXFERQ_RUNNING) { 1037 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE); 1038 } else { 1039 if (firewire_debug) 1040 device_printf(sc->fc.dev, "start AT DMA status=%x\n", 1041 OREAD(sc, OHCI_DMACTL(off))); 1042 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | fsegment); 1043 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 1044 dbch->xferq.flag |= FWXFERQ_RUNNING; 1045 } 1046 1047 dbch->top = db_tr; 1048 splx(s); 1049 return; 1050} 1051 1052static void 1053fwohci_start_atq(struct firewire_comm *fc) 1054{ 1055 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1056 FW_GLOCK(&sc->fc); 1057 fwohci_start( sc, &(sc->atrq)); 1058 FW_GUNLOCK(&sc->fc); 1059 return; 1060} 1061 1062static void 1063fwohci_start_ats(struct firewire_comm *fc) 1064{ 1065 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1066 FW_GLOCK(&sc->fc); 1067 fwohci_start( sc, &(sc->atrs)); 1068 FW_GUNLOCK(&sc->fc); 1069 return; 1070} 1071 1072void 1073fwohci_txd(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1074{ 1075 int s, ch, err = 0; 1076 struct fwohcidb_tr *tr; 1077 struct fwohcidb *db; 1078 struct fw_xfer *xfer; 1079 uint32_t off; 1080 u_int stat, status; 1081 int packets; 1082 struct firewire_comm *fc = (struct firewire_comm *)sc; 1083 1084 if(&sc->atrq == dbch){ 1085 off = OHCI_ATQOFF; 1086 ch = ATRQ_CH; 1087 }else if(&sc->atrs == dbch){ 1088 off = OHCI_ATSOFF; 1089 ch = ATRS_CH; 1090 }else{ 1091 return; 1092 } 1093 s = splfw(); 1094 tr = dbch->bottom; 1095 packets = 0; 1096 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD); 1097 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE); 1098 while(dbch->xferq.queued > 0){ 1099 LAST_DB(tr, db); 1100 status = FWOHCI_DMA_READ(db->db.desc.res) >> OHCI_STATUS_SHIFT; 1101 if(!(status & OHCI_CNTL_DMA_ACTIVE)){ 1102 if (fc->status != FWBUSINIT) 1103 /* maybe out of order?? */ 1104 goto out; 1105 } 1106 bus_dmamap_sync(dbch->dmat, tr->dma_map, 1107 BUS_DMASYNC_POSTWRITE); 1108 bus_dmamap_unload(dbch->dmat, tr->dma_map); 1109#if 1 1110 if (firewire_debug > 1) 1111 dump_db(sc, ch); 1112#endif 1113 if(status & OHCI_CNTL_DMA_DEAD) { 1114 /* Stop DMA */ 1115 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 1116 device_printf(sc->fc.dev, "force reset AT FIFO\n"); 1117 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_LINKEN); 1118 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS | OHCI_HCC_LINKEN); 1119 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 1120 } 1121 stat = status & FWOHCIEV_MASK; 1122 switch(stat){ 1123 case FWOHCIEV_ACKPEND: 1124 case FWOHCIEV_ACKCOMPL: 1125 err = 0; 1126 break; 1127 case FWOHCIEV_ACKBSA: 1128 case FWOHCIEV_ACKBSB: 1129 case FWOHCIEV_ACKBSX: 1130 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1131 err = EBUSY; 1132 break; 1133 case FWOHCIEV_FLUSHED: 1134 case FWOHCIEV_ACKTARD: 1135 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1136 err = EAGAIN; 1137 break; 1138 case FWOHCIEV_MISSACK: 1139 case FWOHCIEV_UNDRRUN: 1140 case FWOHCIEV_OVRRUN: 1141 case FWOHCIEV_DESCERR: 1142 case FWOHCIEV_DTRDERR: 1143 case FWOHCIEV_TIMEOUT: 1144 case FWOHCIEV_TCODERR: 1145 case FWOHCIEV_UNKNOWN: 1146 case FWOHCIEV_ACKDERR: 1147 case FWOHCIEV_ACKTERR: 1148 default: 1149 device_printf(sc->fc.dev, "txd err=%2x %s\n", 1150 stat, fwohcicode[stat]); 1151 err = EINVAL; 1152 break; 1153 } 1154 if (tr->xfer != NULL) { 1155 xfer = tr->xfer; 1156 if (xfer->flag & FWXF_RCVD) { 1157#if 0 1158 if (firewire_debug) 1159 printf("already rcvd\n"); 1160#endif 1161 fw_xfer_done(xfer); 1162 } else { 1163 microtime(&xfer->tv); 1164 xfer->flag = FWXF_SENT; 1165 if (err == EBUSY) { 1166 xfer->flag = FWXF_BUSY; 1167 xfer->resp = err; 1168 xfer->recv.pay_len = 0; 1169 fw_xfer_done(xfer); 1170 } else if (stat != FWOHCIEV_ACKPEND) { 1171 if (stat != FWOHCIEV_ACKCOMPL) 1172 xfer->flag = FWXF_SENTERR; 1173 xfer->resp = err; 1174 xfer->recv.pay_len = 0; 1175 fw_xfer_done(xfer); 1176 } 1177 } 1178 /* 1179 * The watchdog timer takes care of split 1180 * transcation timeout for ACKPEND case. 1181 */ 1182 } else { 1183 printf("this shouldn't happen\n"); 1184 } 1185 FW_GLOCK(fc); 1186 dbch->xferq.queued --; 1187 FW_GUNLOCK(fc); 1188 tr->xfer = NULL; 1189 1190 packets ++; 1191 tr = STAILQ_NEXT(tr, link); 1192 dbch->bottom = tr; 1193 if (dbch->bottom == dbch->top) { 1194 /* we reaches the end of context program */ 1195 if (firewire_debug && dbch->xferq.queued > 0) 1196 printf("queued > 0\n"); 1197 break; 1198 } 1199 } 1200out: 1201 if ((dbch->flags & FWOHCI_DBCH_FULL) && packets > 0) { 1202 printf("make free slot\n"); 1203 dbch->flags &= ~FWOHCI_DBCH_FULL; 1204 FW_GLOCK(fc); 1205 fwohci_start(sc, dbch); 1206 FW_GUNLOCK(fc); 1207 } 1208 splx(s); 1209} 1210 1211static void 1212fwohci_db_free(struct fwohci_dbch *dbch) 1213{ 1214 struct fwohcidb_tr *db_tr; 1215 int idb; 1216 1217 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1218 return; 1219 1220 for(db_tr = STAILQ_FIRST(&dbch->db_trq), idb = 0; idb < dbch->ndb; 1221 db_tr = STAILQ_NEXT(db_tr, link), idb++){ 1222 if ((dbch->xferq.flag & FWXFERQ_EXTBUF) == 0 && 1223 db_tr->buf != NULL) { 1224 fwdma_free_size(dbch->dmat, db_tr->dma_map, 1225 db_tr->buf, dbch->xferq.psize); 1226 db_tr->buf = NULL; 1227 } else if (db_tr->dma_map != NULL) 1228 bus_dmamap_destroy(dbch->dmat, db_tr->dma_map); 1229 } 1230 dbch->ndb = 0; 1231 db_tr = STAILQ_FIRST(&dbch->db_trq); 1232 fwdma_free_multiseg(dbch->am); 1233 free(db_tr, M_FW); 1234 STAILQ_INIT(&dbch->db_trq); 1235 dbch->flags &= ~FWOHCI_DBCH_INIT; 1236} 1237 1238static void 1239fwohci_db_init(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1240{ 1241 int idb; 1242 struct fwohcidb_tr *db_tr; 1243 1244 if ((dbch->flags & FWOHCI_DBCH_INIT) != 0) 1245 goto out; 1246 1247 /* create dma_tag for buffers */ 1248#define MAX_REQCOUNT 0xffff 1249 if (bus_dma_tag_create(/*parent*/ sc->fc.dmat, 1250 /*alignment*/ 1, /*boundary*/ 0, 1251 /*lowaddr*/ BUS_SPACE_MAXADDR_32BIT, 1252 /*highaddr*/ BUS_SPACE_MAXADDR, 1253 /*filter*/NULL, /*filterarg*/NULL, 1254 /*maxsize*/ dbch->xferq.psize, 1255 /*nsegments*/ dbch->ndesc > 3 ? dbch->ndesc - 2 : 1, 1256 /*maxsegsz*/ MAX_REQCOUNT, 1257 /*flags*/ 0, 1258#if defined(__FreeBSD__) && __FreeBSD_version >= 501102 1259 /*lockfunc*/busdma_lock_mutex, 1260 /*lockarg*/FW_GMTX(&sc->fc), 1261#endif 1262 &dbch->dmat)) 1263 return; 1264 1265 /* allocate DB entries and attach one to each DMA channels */ 1266 /* DB entry must start at 16 bytes bounary. */ 1267 STAILQ_INIT(&dbch->db_trq); 1268 db_tr = (struct fwohcidb_tr *) 1269 malloc(sizeof(struct fwohcidb_tr) * dbch->ndb, 1270 M_FW, M_WAITOK | M_ZERO); 1271 if(db_tr == NULL){ 1272 printf("fwohci_db_init: malloc(1) failed\n"); 1273 return; 1274 } 1275 1276#define DB_SIZE(x) (sizeof(struct fwohcidb) * (x)->ndesc) 1277 dbch->am = fwdma_malloc_multiseg(&sc->fc, DB_SIZE(dbch), 1278 DB_SIZE(dbch), dbch->ndb, BUS_DMA_WAITOK); 1279 if (dbch->am == NULL) { 1280 printf("fwohci_db_init: fwdma_malloc_multiseg failed\n"); 1281 free(db_tr, M_FW); 1282 return; 1283 } 1284 /* Attach DB to DMA ch. */ 1285 for(idb = 0 ; idb < dbch->ndb ; idb++){ 1286 db_tr->dbcnt = 0; 1287 db_tr->db = (struct fwohcidb *)fwdma_v_addr(dbch->am, idb); 1288 db_tr->bus_addr = fwdma_bus_addr(dbch->am, idb); 1289 /* create dmamap for buffers */ 1290 /* XXX do we need 4bytes alignment tag? */ 1291 /* XXX don't alloc dma_map for AR */ 1292 if (bus_dmamap_create(dbch->dmat, 0, &db_tr->dma_map) != 0) { 1293 printf("bus_dmamap_create failed\n"); 1294 dbch->flags = FWOHCI_DBCH_INIT; /* XXX fake */ 1295 fwohci_db_free(dbch); 1296 return; 1297 } 1298 STAILQ_INSERT_TAIL(&dbch->db_trq, db_tr, link); 1299 if (dbch->xferq.flag & FWXFERQ_EXTBUF) { 1300 if (idb % dbch->xferq.bnpacket == 0) 1301 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1302 ].start = (caddr_t)db_tr; 1303 if ((idb + 1) % dbch->xferq.bnpacket == 0) 1304 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1305 ].end = (caddr_t)db_tr; 1306 } 1307 db_tr++; 1308 } 1309 STAILQ_LAST(&dbch->db_trq, fwohcidb_tr,link)->link.stqe_next 1310 = STAILQ_FIRST(&dbch->db_trq); 1311out: 1312 dbch->xferq.queued = 0; 1313 dbch->pdb_tr = NULL; 1314 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1315 dbch->bottom = dbch->top; 1316 dbch->flags = FWOHCI_DBCH_INIT; 1317} 1318 1319static int 1320fwohci_itx_disable(struct firewire_comm *fc, int dmach) 1321{ 1322 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1323 1324 OWRITE(sc, OHCI_ITCTLCLR(dmach), 1325 OHCI_CNTL_DMA_RUN | OHCI_CNTL_CYCMATCH_S); 1326 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1327 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1328 /* XXX we cannot free buffers until the DMA really stops */ 1329 pause("fwitxd", hz); 1330 fwohci_db_free(&sc->it[dmach]); 1331 sc->it[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1332 return 0; 1333} 1334 1335static int 1336fwohci_irx_disable(struct firewire_comm *fc, int dmach) 1337{ 1338 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1339 1340 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1341 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1342 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1343 /* XXX we cannot free buffers until the DMA really stops */ 1344 pause("fwirxd", hz); 1345 fwohci_db_free(&sc->ir[dmach]); 1346 sc->ir[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1347 return 0; 1348} 1349 1350#if BYTE_ORDER == BIG_ENDIAN 1351static void 1352fwohci_irx_post (struct firewire_comm *fc , uint32_t *qld) 1353{ 1354 qld[0] = FWOHCI_DMA_READ(qld[0]); 1355 return; 1356} 1357#endif 1358 1359static int 1360fwohci_tx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1361{ 1362 int err = 0; 1363 int idb, z, i, dmach = 0, ldesc; 1364 uint32_t off = 0; 1365 struct fwohcidb_tr *db_tr; 1366 struct fwohcidb *db; 1367 1368 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){ 1369 err = EINVAL; 1370 return err; 1371 } 1372 z = dbch->ndesc; 1373 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1374 if( &sc->it[dmach] == dbch){ 1375 off = OHCI_ITOFF(dmach); 1376 break; 1377 } 1378 } 1379 if(off == 0){ 1380 err = EINVAL; 1381 return err; 1382 } 1383 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1384 return err; 1385 dbch->xferq.flag |= FWXFERQ_RUNNING; 1386 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1387 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1388 } 1389 db_tr = dbch->top; 1390 for (idb = 0; idb < dbch->ndb; idb ++) { 1391 fwohci_add_tx_buf(dbch, db_tr, idb); 1392 if(STAILQ_NEXT(db_tr, link) == NULL){ 1393 break; 1394 } 1395 db = db_tr->db; 1396 ldesc = db_tr->dbcnt - 1; 1397 FWOHCI_DMA_WRITE(db[0].db.desc.depend, 1398 STAILQ_NEXT(db_tr, link)->bus_addr | z); 1399 db[ldesc].db.desc.depend = db[0].db.desc.depend; 1400 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1401 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1402 FWOHCI_DMA_SET( 1403 db[ldesc].db.desc.cmd, 1404 OHCI_INTERRUPT_ALWAYS); 1405 /* OHCI 1.1 and above */ 1406 FWOHCI_DMA_SET( 1407 db[0].db.desc.cmd, 1408 OHCI_INTERRUPT_ALWAYS); 1409 } 1410 } 1411 db_tr = STAILQ_NEXT(db_tr, link); 1412 } 1413 FWOHCI_DMA_CLEAR( 1414 dbch->bottom->db[dbch->bottom->dbcnt - 1].db.desc.depend, 0xf); 1415 return err; 1416} 1417 1418static int 1419fwohci_rx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1420{ 1421 int err = 0; 1422 int idb, z, i, dmach = 0, ldesc; 1423 uint32_t off = 0; 1424 struct fwohcidb_tr *db_tr; 1425 struct fwohcidb *db; 1426 1427 z = dbch->ndesc; 1428 if(&sc->arrq == dbch){ 1429 off = OHCI_ARQOFF; 1430 }else if(&sc->arrs == dbch){ 1431 off = OHCI_ARSOFF; 1432 }else{ 1433 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1434 if( &sc->ir[dmach] == dbch){ 1435 off = OHCI_IROFF(dmach); 1436 break; 1437 } 1438 } 1439 } 1440 if(off == 0){ 1441 err = EINVAL; 1442 return err; 1443 } 1444 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1445 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1446 return err; 1447 }else{ 1448 if(dbch->xferq.flag & FWXFERQ_RUNNING){ 1449 err = EBUSY; 1450 return err; 1451 } 1452 } 1453 dbch->xferq.flag |= FWXFERQ_RUNNING; 1454 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1455 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1456 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1457 } 1458 db_tr = dbch->top; 1459 for (idb = 0; idb < dbch->ndb; idb ++) { 1460 fwohci_add_rx_buf(dbch, db_tr, idb, &sc->dummy_dma); 1461 if (STAILQ_NEXT(db_tr, link) == NULL) 1462 break; 1463 db = db_tr->db; 1464 ldesc = db_tr->dbcnt - 1; 1465 FWOHCI_DMA_WRITE(db[ldesc].db.desc.depend, 1466 STAILQ_NEXT(db_tr, link)->bus_addr | z); 1467 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1468 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1469 FWOHCI_DMA_SET( 1470 db[ldesc].db.desc.cmd, 1471 OHCI_INTERRUPT_ALWAYS); 1472 FWOHCI_DMA_CLEAR( 1473 db[ldesc].db.desc.depend, 1474 0xf); 1475 } 1476 } 1477 db_tr = STAILQ_NEXT(db_tr, link); 1478 } 1479 FWOHCI_DMA_CLEAR( 1480 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend, 0xf); 1481 dbch->buf_offset = 0; 1482 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1483 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1484 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1485 return err; 1486 }else{ 1487 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | z); 1488 } 1489 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 1490 return err; 1491} 1492 1493static int 1494fwohci_next_cycle(struct firewire_comm *fc, int cycle_now) 1495{ 1496 int sec, cycle, cycle_match; 1497 1498 cycle = cycle_now & 0x1fff; 1499 sec = cycle_now >> 13; 1500#define CYCLE_MOD 0x10 1501#if 1 1502#define CYCLE_DELAY 8 /* min delay to start DMA */ 1503#else 1504#define CYCLE_DELAY 7000 /* min delay to start DMA */ 1505#endif 1506 cycle = cycle + CYCLE_DELAY; 1507 if (cycle >= 8000) { 1508 sec ++; 1509 cycle -= 8000; 1510 } 1511 cycle = roundup2(cycle, CYCLE_MOD); 1512 if (cycle >= 8000) { 1513 sec ++; 1514 if (cycle == 8000) 1515 cycle = 0; 1516 else 1517 cycle = CYCLE_MOD; 1518 } 1519 cycle_match = ((sec << 13) | cycle) & 0x7ffff; 1520 1521 return(cycle_match); 1522} 1523 1524static int 1525fwohci_itxbuf_enable(struct firewire_comm *fc, int dmach) 1526{ 1527 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1528 int err = 0; 1529 unsigned short tag, ich; 1530 struct fwohci_dbch *dbch; 1531 int cycle_match, cycle_now, s, ldesc; 1532 uint32_t stat; 1533 struct fw_bulkxfer *first, *chunk, *prev; 1534 struct fw_xferq *it; 1535 1536 dbch = &sc->it[dmach]; 1537 it = &dbch->xferq; 1538 1539 tag = (it->flag >> 6) & 3; 1540 ich = it->flag & 0x3f; 1541 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) { 1542 dbch->ndb = it->bnpacket * it->bnchunk; 1543 dbch->ndesc = 3; 1544 fwohci_db_init(sc, dbch); 1545 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1546 return ENOMEM; 1547 1548 err = fwohci_tx_enable(sc, dbch); 1549 } 1550 if(err) 1551 return err; 1552 1553 ldesc = dbch->ndesc - 1; 1554 s = splfw(); 1555 FW_GLOCK(fc); 1556 prev = STAILQ_LAST(&it->stdma, fw_bulkxfer, link); 1557 while ((chunk = STAILQ_FIRST(&it->stvalid)) != NULL) { 1558 struct fwohcidb *db; 1559 1560 fwdma_sync_multiseg(it->buf, chunk->poffset, it->bnpacket, 1561 BUS_DMASYNC_PREWRITE); 1562 fwohci_txbufdb(sc, dmach, chunk); 1563 if (prev != NULL) { 1564 db = ((struct fwohcidb_tr *)(prev->end))->db; 1565#if 0 /* XXX necessary? */ 1566 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, 1567 OHCI_BRANCH_ALWAYS); 1568#endif 1569#if 0 /* if bulkxfer->npacket changes */ 1570 db[ldesc].db.desc.depend = db[0].db.desc.depend = 1571 ((struct fwohcidb_tr *) 1572 (chunk->start))->bus_addr | dbch->ndesc; 1573#else 1574 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc); 1575 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc); 1576#endif 1577 } 1578 STAILQ_REMOVE_HEAD(&it->stvalid, link); 1579 STAILQ_INSERT_TAIL(&it->stdma, chunk, link); 1580 prev = chunk; 1581 } 1582 FW_GUNLOCK(fc); 1583 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1584 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1585 splx(s); 1586 stat = OREAD(sc, OHCI_ITCTL(dmach)); 1587 if (firewire_debug && (stat & OHCI_CNTL_CYCMATCH_S)) 1588 printf("stat 0x%x\n", stat); 1589 1590 if (stat & (OHCI_CNTL_DMA_ACTIVE | OHCI_CNTL_CYCMATCH_S)) 1591 return 0; 1592 1593#if 0 1594 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1595#endif 1596 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1597 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1598 OWRITE(sc, OHCI_IT_MASK, 1 << dmach); 1599 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IT); 1600 1601 first = STAILQ_FIRST(&it->stdma); 1602 OWRITE(sc, OHCI_ITCMD(dmach), 1603 ((struct fwohcidb_tr *)(first->start))->bus_addr | dbch->ndesc); 1604 if (firewire_debug > 1) { 1605 printf("fwohci_itxbuf_enable: kick 0x%08x\n", stat); 1606#if 1 1607 dump_dma(sc, ITX_CH + dmach); 1608#endif 1609 } 1610 if ((stat & OHCI_CNTL_DMA_RUN) == 0) { 1611#if 1 1612 /* Don't start until all chunks are buffered */ 1613 if (STAILQ_FIRST(&it->stfree) != NULL) 1614 goto out; 1615#endif 1616#if 1 1617 /* Clear cycle match counter bits */ 1618 OWRITE(sc, OHCI_ITCTLCLR(dmach), 0xffff0000); 1619 1620 /* 2bit second + 13bit cycle */ 1621 cycle_now = (fc->cyctimer(fc) >> 12) & 0x7fff; 1622 cycle_match = fwohci_next_cycle(fc, cycle_now); 1623 1624 OWRITE(sc, OHCI_ITCTL(dmach), 1625 OHCI_CNTL_CYCMATCH_S | (cycle_match << 16) 1626 | OHCI_CNTL_DMA_RUN); 1627#else 1628 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_RUN); 1629#endif 1630 if (firewire_debug > 1) { 1631 printf("cycle_match: 0x%04x->0x%04x\n", 1632 cycle_now, cycle_match); 1633 dump_dma(sc, ITX_CH + dmach); 1634 dump_db(sc, ITX_CH + dmach); 1635 } 1636 } else if ((stat & OHCI_CNTL_CYCMATCH_S) == 0) { 1637 device_printf(sc->fc.dev, 1638 "IT DMA underrun (0x%08x)\n", stat); 1639 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_WAKE); 1640 } 1641out: 1642 return err; 1643} 1644 1645static int 1646fwohci_irx_enable(struct firewire_comm *fc, int dmach) 1647{ 1648 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1649 int err = 0, s, ldesc; 1650 unsigned short tag, ich; 1651 uint32_t stat; 1652 struct fwohci_dbch *dbch; 1653 struct fwohcidb_tr *db_tr; 1654 struct fw_bulkxfer *first, *prev, *chunk; 1655 struct fw_xferq *ir; 1656 1657 dbch = &sc->ir[dmach]; 1658 ir = &dbch->xferq; 1659 1660 if ((ir->flag & FWXFERQ_RUNNING) == 0) { 1661 tag = (ir->flag >> 6) & 3; 1662 ich = ir->flag & 0x3f; 1663 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich); 1664 1665 ir->queued = 0; 1666 dbch->ndb = ir->bnpacket * ir->bnchunk; 1667 dbch->ndesc = 2; 1668 fwohci_db_init(sc, dbch); 1669 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1670 return ENOMEM; 1671 err = fwohci_rx_enable(sc, dbch); 1672 } 1673 if(err) 1674 return err; 1675 1676 first = STAILQ_FIRST(&ir->stfree); 1677 if (first == NULL) { 1678 device_printf(fc->dev, "IR DMA no free chunk\n"); 1679 return 0; 1680 } 1681 1682 ldesc = dbch->ndesc - 1; 1683 s = splfw(); 1684 if ((ir->flag & FWXFERQ_HANDLER) == 0) 1685 FW_GLOCK(fc); 1686 prev = STAILQ_LAST(&ir->stdma, fw_bulkxfer, link); 1687 while ((chunk = STAILQ_FIRST(&ir->stfree)) != NULL) { 1688 struct fwohcidb *db; 1689 1690#if 1 /* XXX for if_fwe */ 1691 if (chunk->mbuf != NULL) { 1692 db_tr = (struct fwohcidb_tr *)(chunk->start); 1693 db_tr->dbcnt = 1; 1694 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map, 1695 chunk->mbuf, fwohci_execute_db2, db_tr, 1696 /* flags */0); 1697 FWOHCI_DMA_SET(db_tr->db[1].db.desc.cmd, 1698 OHCI_UPDATE | OHCI_INPUT_LAST | 1699 OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS); 1700 } 1701#endif 1702 db = ((struct fwohcidb_tr *)(chunk->end))->db; 1703 FWOHCI_DMA_WRITE(db[ldesc].db.desc.res, 0); 1704 FWOHCI_DMA_CLEAR(db[ldesc].db.desc.depend, 0xf); 1705 if (prev != NULL) { 1706 db = ((struct fwohcidb_tr *)(prev->end))->db; 1707 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc); 1708 } 1709 STAILQ_REMOVE_HEAD(&ir->stfree, link); 1710 STAILQ_INSERT_TAIL(&ir->stdma, chunk, link); 1711 prev = chunk; 1712 } 1713 if ((ir->flag & FWXFERQ_HANDLER) == 0) 1714 FW_GUNLOCK(fc); 1715 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1716 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1717 splx(s); 1718 stat = OREAD(sc, OHCI_IRCTL(dmach)); 1719 if (stat & OHCI_CNTL_DMA_ACTIVE) 1720 return 0; 1721 if (stat & OHCI_CNTL_DMA_RUN) { 1722 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1723 device_printf(sc->fc.dev, "IR DMA overrun (0x%08x)\n", stat); 1724 } 1725 1726 if (firewire_debug) 1727 printf("start IR DMA 0x%x\n", stat); 1728 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1729 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1730 OWRITE(sc, OHCI_IR_MASK, 1 << dmach); 1731 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf0000000); 1732 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR); 1733 OWRITE(sc, OHCI_IRCMD(dmach), 1734 ((struct fwohcidb_tr *)(first->start))->bus_addr 1735 | dbch->ndesc); 1736 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN); 1737 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR); 1738#if 0 1739 dump_db(sc, IRX_CH + dmach); 1740#endif 1741 return err; 1742} 1743 1744int 1745fwohci_stop(struct fwohci_softc *sc, device_t dev) 1746{ 1747 u_int i; 1748 1749 fwohci_set_intr(&sc->fc, 0); 1750 1751/* Now stopping all DMA channel */ 1752 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 1753 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 1754 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1755 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1756 1757 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 1758 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 1759 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 1760 } 1761 1762#if 0 /* Let dcons(4) be accessed */ 1763/* Stop interrupt */ 1764 OWRITE(sc, FWOHCI_INTMASKCLR, 1765 OHCI_INT_EN | OHCI_INT_ERR | OHCI_INT_PHY_SID 1766 | OHCI_INT_PHY_INT 1767 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 1768 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 1769 | OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS 1770 | OHCI_INT_PHY_BUS_R); 1771 1772/* FLUSH FIFO and reset Transmitter/Reciever */ 1773 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 1774#endif 1775 1776/* XXX Link down? Bus reset? */ 1777 return 0; 1778} 1779 1780int 1781fwohci_resume(struct fwohci_softc *sc, device_t dev) 1782{ 1783 int i; 1784 struct fw_xferq *ir; 1785 struct fw_bulkxfer *chunk; 1786 1787 fwohci_reset(sc, dev); 1788 /* XXX resume isochronous receive automatically. (how about TX?) */ 1789 for(i = 0; i < sc->fc.nisodma; i ++) { 1790 ir = &sc->ir[i].xferq; 1791 if((ir->flag & FWXFERQ_RUNNING) != 0) { 1792 device_printf(sc->fc.dev, 1793 "resume iso receive ch: %d\n", i); 1794 ir->flag &= ~FWXFERQ_RUNNING; 1795 /* requeue stdma to stfree */ 1796 while((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) { 1797 STAILQ_REMOVE_HEAD(&ir->stdma, link); 1798 STAILQ_INSERT_TAIL(&ir->stfree, chunk, link); 1799 } 1800 sc->fc.irx_enable(&sc->fc, i); 1801 } 1802 } 1803 1804 bus_generic_resume(dev); 1805 sc->fc.ibr(&sc->fc); 1806 return 0; 1807} 1808 1809#ifdef OHCI_DEBUG 1810static void 1811fwohci_dump_intr(struct fwohci_softc *sc, uint32_t stat) 1812{ 1813 if(stat & OREAD(sc, FWOHCI_INTMASK)) 1814 device_printf(fc->dev, "INTERRUPT < %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s> 0x%08x, 0x%08x\n", 1815 stat & OHCI_INT_EN ? "DMA_EN ":"", 1816 stat & OHCI_INT_PHY_REG ? "PHY_REG ":"", 1817 stat & OHCI_INT_CYC_LONG ? "CYC_LONG ":"", 1818 stat & OHCI_INT_ERR ? "INT_ERR ":"", 1819 stat & OHCI_INT_CYC_ERR ? "CYC_ERR ":"", 1820 stat & OHCI_INT_CYC_LOST ? "CYC_LOST ":"", 1821 stat & OHCI_INT_CYC_64SECOND ? "CYC_64SECOND ":"", 1822 stat & OHCI_INT_CYC_START ? "CYC_START ":"", 1823 stat & OHCI_INT_PHY_INT ? "PHY_INT ":"", 1824 stat & OHCI_INT_PHY_BUS_R ? "BUS_RESET ":"", 1825 stat & OHCI_INT_PHY_SID ? "SID ":"", 1826 stat & OHCI_INT_LR_ERR ? "DMA_LR_ERR ":"", 1827 stat & OHCI_INT_PW_ERR ? "DMA_PW_ERR ":"", 1828 stat & OHCI_INT_DMA_IR ? "DMA_IR ":"", 1829 stat & OHCI_INT_DMA_IT ? "DMA_IT " :"", 1830 stat & OHCI_INT_DMA_PRRS ? "DMA_PRRS " :"", 1831 stat & OHCI_INT_DMA_PRRQ ? "DMA_PRRQ " :"", 1832 stat & OHCI_INT_DMA_ARRS ? "DMA_ARRS " :"", 1833 stat & OHCI_INT_DMA_ARRQ ? "DMA_ARRQ " :"", 1834 stat & OHCI_INT_DMA_ATRS ? "DMA_ATRS " :"", 1835 stat & OHCI_INT_DMA_ATRQ ? "DMA_ATRQ " :"", 1836 stat, OREAD(sc, FWOHCI_INTMASK) 1837 ); 1838} 1839#endif 1840static void 1841fwohci_intr_core(struct fwohci_softc *sc, uint32_t stat, int count) 1842{ 1843 struct firewire_comm *fc = (struct firewire_comm *)sc; 1844 uint32_t node_id, plen; 1845 1846 FW_GLOCK_ASSERT(fc); 1847 if ((stat & OHCI_INT_PHY_BUS_R) && (fc->status != FWBUSRESET)) { 1848 fc->status = FWBUSRESET; 1849 /* Disable bus reset interrupt until sid recv. */ 1850 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_PHY_BUS_R); 1851 1852 device_printf(fc->dev, "%s: BUS reset\n", __func__); 1853 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST); 1854 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCSRC); 1855 1856 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1857 sc->atrq.xferq.flag &= ~FWXFERQ_RUNNING; 1858 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1859 sc->atrs.xferq.flag &= ~FWXFERQ_RUNNING; 1860 1861 if (!kdb_active) 1862 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_busreset); 1863 } 1864 if (stat & OHCI_INT_PHY_SID) { 1865 /* Enable bus reset interrupt */ 1866 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_BUS_R); 1867 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_PHY_BUS_R); 1868 1869 /* Allow async. request to us */ 1870 OWRITE(sc, OHCI_AREQHI, 1 << 31); 1871 if (firewire_phydma_enable) { 1872 /* allow from all nodes */ 1873 OWRITE(sc, OHCI_PREQHI, 0x7fffffff); 1874 OWRITE(sc, OHCI_PREQLO, 0xffffffff); 1875 /* 0 to 4GB region */ 1876 OWRITE(sc, OHCI_PREQUPPER, 0x10000); 1877 } 1878 /* Set ATRetries register */ 1879 OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff); 1880 1881 /* 1882 * Checking whether the node is root or not. If root, turn on 1883 * cycle master. 1884 */ 1885 node_id = OREAD(sc, FWOHCI_NODEID); 1886 plen = OREAD(sc, OHCI_SID_CNT); 1887 1888 fc->nodeid = node_id & 0x3f; 1889 device_printf(fc->dev, "%s: node_id=0x%08x, SelfID Count=%d, ", 1890 __func__, fc->nodeid, (plen >> 16) & 0xff); 1891 if (!(node_id & OHCI_NODE_VALID)) { 1892 device_printf(fc->dev, "%s: Bus reset failure\n", 1893 __func__); 1894 goto sidout; 1895 } 1896 1897 /* cycle timer */ 1898 sc->cycle_lost = 0; 1899 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_CYC_LOST); 1900 if ((node_id & OHCI_NODE_ROOT) && !nocyclemaster) { 1901 printf("CYCLEMASTER mode\n"); 1902 OWRITE(sc, OHCI_LNKCTL, 1903 OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER); 1904 } else { 1905 printf("non CYCLEMASTER mode\n"); 1906 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCMTR); 1907 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCTIMER); 1908 } 1909 1910 fc->status = FWBUSINIT; 1911 1912 if (!kdb_active) 1913 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_sid); 1914 } 1915sidout: 1916 if ((stat & ~(OHCI_INT_PHY_BUS_R | OHCI_INT_PHY_SID)) && (!kdb_active)) 1917 taskqueue_enqueue(sc->fc.taskqueue, &sc->fwohci_task_dma); 1918} 1919 1920static void 1921fwohci_intr_dma(struct fwohci_softc *sc, uint32_t stat, int count) 1922{ 1923 uint32_t irstat, itstat; 1924 u_int i; 1925 struct firewire_comm *fc = (struct firewire_comm *)sc; 1926 1927 if (stat & OHCI_INT_DMA_IR) { 1928 irstat = atomic_readandclear_int(&sc->irstat); 1929 for(i = 0; i < fc->nisodma ; i++){ 1930 struct fwohci_dbch *dbch; 1931 1932 if((irstat & (1 << i)) != 0){ 1933 dbch = &sc->ir[i]; 1934 if ((dbch->xferq.flag & FWXFERQ_OPEN) == 0) { 1935 device_printf(sc->fc.dev, 1936 "dma(%d) not active\n", i); 1937 continue; 1938 } 1939 fwohci_rbuf_update(sc, i); 1940 } 1941 } 1942 } 1943 if (stat & OHCI_INT_DMA_IT) { 1944 itstat = atomic_readandclear_int(&sc->itstat); 1945 for(i = 0; i < fc->nisodma ; i++){ 1946 if((itstat & (1 << i)) != 0){ 1947 fwohci_tbuf_update(sc, i); 1948 } 1949 } 1950 } 1951 if (stat & OHCI_INT_DMA_PRRS) { 1952#if 0 1953 dump_dma(sc, ARRS_CH); 1954 dump_db(sc, ARRS_CH); 1955#endif 1956 fwohci_arcv(sc, &sc->arrs, count); 1957 } 1958 if (stat & OHCI_INT_DMA_PRRQ) { 1959#if 0 1960 dump_dma(sc, ARRQ_CH); 1961 dump_db(sc, ARRQ_CH); 1962#endif 1963 fwohci_arcv(sc, &sc->arrq, count); 1964 } 1965 if (stat & OHCI_INT_CYC_LOST) { 1966 if (sc->cycle_lost >= 0) 1967 sc->cycle_lost ++; 1968 if (sc->cycle_lost > 10) { 1969 sc->cycle_lost = -1; 1970#if 0 1971 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCTIMER); 1972#endif 1973 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST); 1974 device_printf(fc->dev, "too many cycles lost, " 1975 "no cycle master present?\n"); 1976 } 1977 } 1978 if (stat & OHCI_INT_DMA_ATRQ) { 1979 fwohci_txd(sc, &(sc->atrq)); 1980 } 1981 if (stat & OHCI_INT_DMA_ATRS) { 1982 fwohci_txd(sc, &(sc->atrs)); 1983 } 1984 if (stat & OHCI_INT_PW_ERR) { 1985 device_printf(fc->dev, "posted write error\n"); 1986 } 1987 if (stat & OHCI_INT_ERR) { 1988 device_printf(fc->dev, "unrecoverable error\n"); 1989 } 1990 if (stat & OHCI_INT_PHY_INT) { 1991 device_printf(fc->dev, "phy int\n"); 1992 } 1993 1994 return; 1995} 1996 1997static void 1998fwohci_task_busreset(void *arg, int pending) 1999{ 2000 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 2001 2002 FW_GLOCK(&sc->fc); 2003 fw_busreset(&sc->fc, FWBUSRESET); 2004 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0])); 2005 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2])); 2006 FW_GUNLOCK(&sc->fc); 2007} 2008 2009static void 2010fwohci_task_sid(void *arg, int pending) 2011{ 2012 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 2013 struct firewire_comm *fc = &sc->fc; 2014 uint32_t *buf; 2015 int i, plen; 2016 2017 2018 /* 2019 * We really should have locking 2020 * here. Not sure why it's not 2021 */ 2022 plen = OREAD(sc, OHCI_SID_CNT); 2023 2024 if (plen & OHCI_SID_ERR) { 2025 device_printf(fc->dev, "SID Error\n"); 2026 return; 2027 } 2028 plen &= OHCI_SID_CNT_MASK; 2029 if (plen < 4 || plen > OHCI_SIDSIZE) { 2030 device_printf(fc->dev, "invalid SID len = %d\n", plen); 2031 return; 2032 } 2033 plen -= 4; /* chop control info */ 2034 buf = (uint32_t *)malloc(OHCI_SIDSIZE, M_FW, M_NOWAIT); 2035 if (buf == NULL) { 2036 device_printf(fc->dev, "malloc failed\n"); 2037 return; 2038 } 2039 for (i = 0; i < plen / 4; i ++) 2040 buf[i] = FWOHCI_DMA_READ(sc->sid_buf[i+1]); 2041 2042 /* pending all pre-bus_reset packets */ 2043 fwohci_txd(sc, &sc->atrq); 2044 fwohci_txd(sc, &sc->atrs); 2045 fwohci_arcv(sc, &sc->arrs, -1); 2046 fwohci_arcv(sc, &sc->arrq, -1); 2047 fw_drain_txq(fc); 2048 fw_sidrcv(fc, buf, plen); 2049 free(buf, M_FW); 2050} 2051 2052static void 2053fwohci_task_dma(void *arg, int pending) 2054{ 2055 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 2056 uint32_t stat; 2057 2058again: 2059 stat = atomic_readandclear_int(&sc->intstat); 2060 if (stat) 2061 fwohci_intr_dma(sc, stat, -1); 2062 else 2063 return; 2064 goto again; 2065} 2066 2067static int 2068fwohci_check_stat(struct fwohci_softc *sc) 2069{ 2070 uint32_t stat, irstat, itstat; 2071 2072 FW_GLOCK_ASSERT(&sc->fc); 2073 stat = OREAD(sc, FWOHCI_INTSTAT); 2074 if (stat == 0xffffffff) { 2075 if (!bus_child_present(sc->fc.dev)) 2076 return (FILTER_HANDLED); 2077 device_printf(sc->fc.dev, "device physically ejected?\n"); 2078 return (FILTER_STRAY); 2079 } 2080 if (stat) 2081 OWRITE(sc, FWOHCI_INTSTATCLR, stat & ~OHCI_INT_PHY_BUS_R); 2082 2083 stat &= sc->intmask; 2084 if (stat == 0) 2085 return (FILTER_STRAY); 2086 2087 atomic_set_int(&sc->intstat, stat); 2088 if (stat & OHCI_INT_DMA_IR) { 2089 irstat = OREAD(sc, OHCI_IR_STAT); 2090 OWRITE(sc, OHCI_IR_STATCLR, irstat); 2091 atomic_set_int(&sc->irstat, irstat); 2092 } 2093 if (stat & OHCI_INT_DMA_IT) { 2094 itstat = OREAD(sc, OHCI_IT_STAT); 2095 OWRITE(sc, OHCI_IT_STATCLR, itstat); 2096 atomic_set_int(&sc->itstat, itstat); 2097 } 2098 2099 fwohci_intr_core(sc, stat, -1); 2100 return (FILTER_HANDLED); 2101} 2102 2103void 2104fwohci_intr(void *arg) 2105{ 2106 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 2107 2108 FW_GLOCK(&sc->fc); 2109 fwohci_check_stat(sc); 2110 FW_GUNLOCK(&sc->fc); 2111} 2112 2113void 2114fwohci_poll(struct firewire_comm *fc, int quick, int count) 2115{ 2116 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 2117 2118 FW_GLOCK(fc); 2119 fwohci_check_stat(sc); 2120 FW_GUNLOCK(fc); 2121} 2122 2123static void 2124fwohci_set_intr(struct firewire_comm *fc, int enable) 2125{ 2126 struct fwohci_softc *sc; 2127 2128 sc = (struct fwohci_softc *)fc; 2129 if (firewire_debug) 2130 device_printf(sc->fc.dev, "fwohci_set_intr: %d\n", enable); 2131 if (enable) { 2132 sc->intmask |= OHCI_INT_EN; 2133 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_EN); 2134 } else { 2135 sc->intmask &= ~OHCI_INT_EN; 2136 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_EN); 2137 } 2138} 2139 2140static void 2141fwohci_tbuf_update(struct fwohci_softc *sc, int dmach) 2142{ 2143 struct firewire_comm *fc = &sc->fc; 2144 struct fwohcidb *db; 2145 struct fw_bulkxfer *chunk; 2146 struct fw_xferq *it; 2147 uint32_t stat, count; 2148 int s, w=0, ldesc; 2149 2150 it = fc->it[dmach]; 2151 ldesc = sc->it[dmach].ndesc - 1; 2152 s = splfw(); /* unnecessary ? */ 2153 FW_GLOCK(fc); 2154 fwdma_sync_multiseg_all(sc->it[dmach].am, BUS_DMASYNC_POSTREAD); 2155 if (firewire_debug) 2156 dump_db(sc, ITX_CH + dmach); 2157 while ((chunk = STAILQ_FIRST(&it->stdma)) != NULL) { 2158 db = ((struct fwohcidb_tr *)(chunk->end))->db; 2159 stat = FWOHCI_DMA_READ(db[ldesc].db.desc.res) 2160 >> OHCI_STATUS_SHIFT; 2161 db = ((struct fwohcidb_tr *)(chunk->start))->db; 2162 /* timestamp */ 2163 count = FWOHCI_DMA_READ(db[ldesc].db.desc.res) 2164 & OHCI_COUNT_MASK; 2165 if (stat == 0) 2166 break; 2167 STAILQ_REMOVE_HEAD(&it->stdma, link); 2168 switch (stat & FWOHCIEV_MASK){ 2169 case FWOHCIEV_ACKCOMPL: 2170#if 0 2171 device_printf(fc->dev, "0x%08x\n", count); 2172#endif 2173 break; 2174 default: 2175 device_printf(fc->dev, 2176 "Isochronous transmit err %02x(%s)\n", 2177 stat, fwohcicode[stat & 0x1f]); 2178 } 2179 STAILQ_INSERT_TAIL(&it->stfree, chunk, link); 2180 w++; 2181 } 2182 FW_GUNLOCK(fc); 2183 splx(s); 2184 if (w) 2185 wakeup(it); 2186} 2187 2188static void 2189fwohci_rbuf_update(struct fwohci_softc *sc, int dmach) 2190{ 2191 struct firewire_comm *fc = &sc->fc; 2192 struct fwohcidb_tr *db_tr; 2193 struct fw_bulkxfer *chunk; 2194 struct fw_xferq *ir; 2195 uint32_t stat; 2196 int s, w = 0, ldesc; 2197 2198 ir = fc->ir[dmach]; 2199 ldesc = sc->ir[dmach].ndesc - 1; 2200 2201#if 0 2202 dump_db(sc, dmach); 2203#endif 2204 s = splfw(); 2205 if ((ir->flag & FWXFERQ_HANDLER) == 0) 2206 FW_GLOCK(fc); 2207 fwdma_sync_multiseg_all(sc->ir[dmach].am, BUS_DMASYNC_POSTREAD); 2208 while ((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) { 2209 db_tr = (struct fwohcidb_tr *)chunk->end; 2210 stat = FWOHCI_DMA_READ(db_tr->db[ldesc].db.desc.res) 2211 >> OHCI_STATUS_SHIFT; 2212 if (stat == 0) 2213 break; 2214 2215 if (chunk->mbuf != NULL) { 2216 bus_dmamap_sync(sc->ir[dmach].dmat, db_tr->dma_map, 2217 BUS_DMASYNC_POSTREAD); 2218 bus_dmamap_unload(sc->ir[dmach].dmat, db_tr->dma_map); 2219 } else if (ir->buf != NULL) { 2220 fwdma_sync_multiseg(ir->buf, chunk->poffset, 2221 ir->bnpacket, BUS_DMASYNC_POSTREAD); 2222 } else { 2223 /* XXX */ 2224 printf("fwohci_rbuf_update: this shouldn't happend\n"); 2225 } 2226 2227 STAILQ_REMOVE_HEAD(&ir->stdma, link); 2228 STAILQ_INSERT_TAIL(&ir->stvalid, chunk, link); 2229 switch (stat & FWOHCIEV_MASK) { 2230 case FWOHCIEV_ACKCOMPL: 2231 chunk->resp = 0; 2232 break; 2233 default: 2234 chunk->resp = EINVAL; 2235 device_printf(fc->dev, 2236 "Isochronous receive err %02x(%s)\n", 2237 stat, fwohcicode[stat & 0x1f]); 2238 } 2239 w++; 2240 } 2241 if ((ir->flag & FWXFERQ_HANDLER) == 0) 2242 FW_GUNLOCK(fc); 2243 splx(s); 2244 if (w == 0) 2245 return; 2246 2247 if (ir->flag & FWXFERQ_HANDLER) 2248 ir->hand(ir); 2249 else 2250 wakeup(ir); 2251} 2252 2253void 2254dump_dma(struct fwohci_softc *sc, uint32_t ch) 2255{ 2256 uint32_t off, cntl, stat, cmd, match; 2257 2258 if(ch == 0){ 2259 off = OHCI_ATQOFF; 2260 }else if(ch == 1){ 2261 off = OHCI_ATSOFF; 2262 }else if(ch == 2){ 2263 off = OHCI_ARQOFF; 2264 }else if(ch == 3){ 2265 off = OHCI_ARSOFF; 2266 }else if(ch < IRX_CH){ 2267 off = OHCI_ITCTL(ch - ITX_CH); 2268 }else{ 2269 off = OHCI_IRCTL(ch - IRX_CH); 2270 } 2271 cntl = stat = OREAD(sc, off); 2272 cmd = OREAD(sc, off + 0xc); 2273 match = OREAD(sc, off + 0x10); 2274 2275 device_printf(sc->fc.dev, "ch %1x cntl:0x%08x cmd:0x%08x match:0x%08x\n", 2276 ch, 2277 cntl, 2278 cmd, 2279 match); 2280 stat &= 0xffff ; 2281 if (stat) { 2282 device_printf(sc->fc.dev, "dma %d ch:%s%s%s%s%s%s %s(%x)\n", 2283 ch, 2284 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 2285 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 2286 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 2287 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 2288 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 2289 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 2290 fwohcicode[stat & 0x1f], 2291 stat & 0x1f 2292 ); 2293 }else{ 2294 device_printf(sc->fc.dev, "dma %d ch: Nostat\n", ch); 2295 } 2296} 2297 2298void 2299dump_db(struct fwohci_softc *sc, uint32_t ch) 2300{ 2301 struct fwohci_dbch *dbch; 2302 struct fwohcidb_tr *cp = NULL, *pp, *np = NULL; 2303 struct fwohcidb *curr = NULL, *prev, *next = NULL; 2304 int idb, jdb; 2305 uint32_t cmd, off; 2306 if(ch == 0){ 2307 off = OHCI_ATQOFF; 2308 dbch = &sc->atrq; 2309 }else if(ch == 1){ 2310 off = OHCI_ATSOFF; 2311 dbch = &sc->atrs; 2312 }else if(ch == 2){ 2313 off = OHCI_ARQOFF; 2314 dbch = &sc->arrq; 2315 }else if(ch == 3){ 2316 off = OHCI_ARSOFF; 2317 dbch = &sc->arrs; 2318 }else if(ch < IRX_CH){ 2319 off = OHCI_ITCTL(ch - ITX_CH); 2320 dbch = &sc->it[ch - ITX_CH]; 2321 }else { 2322 off = OHCI_IRCTL(ch - IRX_CH); 2323 dbch = &sc->ir[ch - IRX_CH]; 2324 } 2325 cmd = OREAD(sc, off + 0xc); 2326 2327 if( dbch->ndb == 0 ){ 2328 device_printf(sc->fc.dev, "No DB is attached ch=%d\n", ch); 2329 return; 2330 } 2331 pp = dbch->top; 2332 prev = pp->db; 2333 for(idb = 0 ; idb < dbch->ndb ; idb ++ ){ 2334 cp = STAILQ_NEXT(pp, link); 2335 if(cp == NULL){ 2336 curr = NULL; 2337 goto outdb; 2338 } 2339 np = STAILQ_NEXT(cp, link); 2340 for(jdb = 0 ; jdb < dbch->ndesc ; jdb ++ ){ 2341 if ((cmd & 0xfffffff0) == cp->bus_addr) { 2342 curr = cp->db; 2343 if(np != NULL){ 2344 next = np->db; 2345 }else{ 2346 next = NULL; 2347 } 2348 goto outdb; 2349 } 2350 } 2351 pp = STAILQ_NEXT(pp, link); 2352 if(pp == NULL){ 2353 curr = NULL; 2354 goto outdb; 2355 } 2356 prev = pp->db; 2357 } 2358outdb: 2359 if( curr != NULL){ 2360#if 0 2361 printf("Prev DB %d\n", ch); 2362 print_db(pp, prev, ch, dbch->ndesc); 2363#endif 2364 printf("Current DB %d\n", ch); 2365 print_db(cp, curr, ch, dbch->ndesc); 2366#if 0 2367 printf("Next DB %d\n", ch); 2368 print_db(np, next, ch, dbch->ndesc); 2369#endif 2370 }else{ 2371 printf("dbdump err ch = %d cmd = 0x%08x\n", ch, cmd); 2372 } 2373 return; 2374} 2375 2376void 2377print_db(struct fwohcidb_tr *db_tr, struct fwohcidb *db, 2378 uint32_t ch, uint32_t max) 2379{ 2380 fwohcireg_t stat; 2381 int i, key; 2382 uint32_t cmd, res; 2383 2384 if(db == NULL){ 2385 printf("No Descriptor is found\n"); 2386 return; 2387 } 2388 2389 printf("ch = %d\n%8s %s %s %s %s %4s %8s %8s %4s:%4s\n", 2390 ch, 2391 "Current", 2392 "OP ", 2393 "KEY", 2394 "INT", 2395 "BR ", 2396 "len", 2397 "Addr", 2398 "Depend", 2399 "Stat", 2400 "Cnt"); 2401 for( i = 0 ; i <= max ; i ++){ 2402 cmd = FWOHCI_DMA_READ(db[i].db.desc.cmd); 2403 res = FWOHCI_DMA_READ(db[i].db.desc.res); 2404 key = cmd & OHCI_KEY_MASK; 2405 stat = res >> OHCI_STATUS_SHIFT; 2406#if defined(__DragonFly__) || __FreeBSD_version < 500000 2407 printf("%08x %s %s %s %s %5d %08x %08x %04x:%04x", 2408 db_tr->bus_addr, 2409#else 2410 printf("%08jx %s %s %s %s %5d %08x %08x %04x:%04x", 2411 (uintmax_t)db_tr->bus_addr, 2412#endif 2413 dbcode[(cmd >> 28) & 0xf], 2414 dbkey[(cmd >> 24) & 0x7], 2415 dbcond[(cmd >> 20) & 0x3], 2416 dbcond[(cmd >> 18) & 0x3], 2417 cmd & OHCI_COUNT_MASK, 2418 FWOHCI_DMA_READ(db[i].db.desc.addr), 2419 FWOHCI_DMA_READ(db[i].db.desc.depend), 2420 stat, 2421 res & OHCI_COUNT_MASK); 2422 if(stat & 0xff00){ 2423 printf(" %s%s%s%s%s%s %s(%x)\n", 2424 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 2425 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 2426 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 2427 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 2428 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 2429 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 2430 fwohcicode[stat & 0x1f], 2431 stat & 0x1f 2432 ); 2433 }else{ 2434 printf(" Nostat\n"); 2435 } 2436 if(key == OHCI_KEY_ST2 ){ 2437 printf("0x%08x 0x%08x 0x%08x 0x%08x\n", 2438 FWOHCI_DMA_READ(db[i+1].db.immed[0]), 2439 FWOHCI_DMA_READ(db[i+1].db.immed[1]), 2440 FWOHCI_DMA_READ(db[i+1].db.immed[2]), 2441 FWOHCI_DMA_READ(db[i+1].db.immed[3])); 2442 } 2443 if(key == OHCI_KEY_DEVICE){ 2444 return; 2445 } 2446 if((cmd & OHCI_BRANCH_MASK) 2447 == OHCI_BRANCH_ALWAYS){ 2448 return; 2449 } 2450 if((cmd & OHCI_CMD_MASK) 2451 == OHCI_OUTPUT_LAST){ 2452 return; 2453 } 2454 if((cmd & OHCI_CMD_MASK) 2455 == OHCI_INPUT_LAST){ 2456 return; 2457 } 2458 if(key == OHCI_KEY_ST2 ){ 2459 i++; 2460 } 2461 } 2462 return; 2463} 2464 2465void 2466fwohci_ibr(struct firewire_comm *fc) 2467{ 2468 struct fwohci_softc *sc; 2469 uint32_t fun; 2470 2471 device_printf(fc->dev, "Initiate bus reset\n"); 2472 sc = (struct fwohci_softc *)fc; 2473 2474 FW_GLOCK(fc); 2475 /* 2476 * Make sure our cached values from the config rom are 2477 * initialised. 2478 */ 2479 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0])); 2480 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2])); 2481 2482 /* 2483 * Set root hold-off bit so that non cyclemaster capable node 2484 * shouldn't became the root node. 2485 */ 2486#if 1 2487 fun = fwphy_rddata(sc, FW_PHY_IBR_REG); 2488 fun |= FW_PHY_IBR | FW_PHY_RHB; 2489 fun = fwphy_wrdata(sc, FW_PHY_IBR_REG, fun); 2490#else /* Short bus reset */ 2491 fun = fwphy_rddata(sc, FW_PHY_ISBR_REG); 2492 fun |= FW_PHY_ISBR | FW_PHY_RHB; 2493 fun = fwphy_wrdata(sc, FW_PHY_ISBR_REG, fun); 2494#endif 2495 FW_GUNLOCK(fc); 2496} 2497 2498void 2499fwohci_txbufdb(struct fwohci_softc *sc, int dmach, struct fw_bulkxfer *bulkxfer) 2500{ 2501 struct fwohcidb_tr *db_tr, *fdb_tr; 2502 struct fwohci_dbch *dbch; 2503 struct fwohcidb *db; 2504 struct fw_pkt *fp; 2505 struct fwohci_txpkthdr *ohcifp; 2506 unsigned short chtag; 2507 int idb; 2508 2509 FW_GLOCK_ASSERT(&sc->fc); 2510 2511 dbch = &sc->it[dmach]; 2512 chtag = sc->it[dmach].xferq.flag & 0xff; 2513 2514 db_tr = (struct fwohcidb_tr *)(bulkxfer->start); 2515 fdb_tr = (struct fwohcidb_tr *)(bulkxfer->end); 2516/* 2517device_printf(sc->fc.dev, "DB %08x %08x %08x\n", bulkxfer, db_tr->bus_addr, fdb_tr->bus_addr); 2518*/ 2519 for (idb = 0; idb < dbch->xferq.bnpacket; idb ++) { 2520 db = db_tr->db; 2521 fp = (struct fw_pkt *)db_tr->buf; 2522 ohcifp = (struct fwohci_txpkthdr *) db[1].db.immed; 2523 ohcifp->mode.ld[0] = fp->mode.ld[0]; 2524 ohcifp->mode.common.spd = 0 & 0x7; 2525 ohcifp->mode.stream.len = fp->mode.stream.len; 2526 ohcifp->mode.stream.chtag = chtag; 2527 ohcifp->mode.stream.tcode = 0xa; 2528#if BYTE_ORDER == BIG_ENDIAN 2529 FWOHCI_DMA_WRITE(db[1].db.immed[0], db[1].db.immed[0]); 2530 FWOHCI_DMA_WRITE(db[1].db.immed[1], db[1].db.immed[1]); 2531#endif 2532 2533 FWOHCI_DMA_CLEAR(db[2].db.desc.cmd, OHCI_COUNT_MASK); 2534 FWOHCI_DMA_SET(db[2].db.desc.cmd, fp->mode.stream.len); 2535 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0); 2536#if 0 /* if bulkxfer->npackets changes */ 2537 db[2].db.desc.cmd = OHCI_OUTPUT_LAST 2538 | OHCI_UPDATE 2539 | OHCI_BRANCH_ALWAYS; 2540 db[0].db.desc.depend = 2541 = db[dbch->ndesc - 1].db.desc.depend 2542 = STAILQ_NEXT(db_tr, link)->bus_addr | dbch->ndesc; 2543#else 2544 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc); 2545 FWOHCI_DMA_SET(db[dbch->ndesc - 1].db.desc.depend, dbch->ndesc); 2546#endif 2547 bulkxfer->end = (caddr_t)db_tr; 2548 db_tr = STAILQ_NEXT(db_tr, link); 2549 } 2550 db = ((struct fwohcidb_tr *)bulkxfer->end)->db; 2551 FWOHCI_DMA_CLEAR(db[0].db.desc.depend, 0xf); 2552 FWOHCI_DMA_CLEAR(db[dbch->ndesc - 1].db.desc.depend, 0xf); 2553#if 0 /* if bulkxfer->npackets changes */ 2554 db[dbch->ndesc - 1].db.desc.control |= OHCI_INTERRUPT_ALWAYS; 2555 /* OHCI 1.1 and above */ 2556 db[0].db.desc.control |= OHCI_INTERRUPT_ALWAYS; 2557#endif 2558/* 2559 db_tr = (struct fwohcidb_tr *)bulkxfer->start; 2560 fdb_tr = (struct fwohcidb_tr *)bulkxfer->end; 2561device_printf(sc->fc.dev, "DB %08x %3d %08x %08x\n", bulkxfer, bulkxfer->npacket, db_tr->bus_addr, fdb_tr->bus_addr); 2562*/ 2563 return; 2564} 2565 2566static int 2567fwohci_add_tx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr, 2568 int poffset) 2569{ 2570 struct fwohcidb *db = db_tr->db; 2571 struct fw_xferq *it; 2572 int err = 0; 2573 2574 it = &dbch->xferq; 2575 if(it->buf == 0){ 2576 err = EINVAL; 2577 return err; 2578 } 2579 db_tr->buf = fwdma_v_addr(it->buf, poffset); 2580 db_tr->dbcnt = 3; 2581 2582 FWOHCI_DMA_WRITE(db[0].db.desc.cmd, 2583 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8); 2584 FWOHCI_DMA_WRITE(db[0].db.desc.addr, 0); 2585 bzero((void *)&db[1].db.immed[0], sizeof(db[1].db.immed)); 2586 FWOHCI_DMA_WRITE(db[2].db.desc.addr, 2587 fwdma_bus_addr(it->buf, poffset) + sizeof(uint32_t)); 2588 2589 FWOHCI_DMA_WRITE(db[2].db.desc.cmd, 2590 OHCI_OUTPUT_LAST | OHCI_UPDATE | OHCI_BRANCH_ALWAYS); 2591#if 1 2592 FWOHCI_DMA_WRITE(db[0].db.desc.res, 0); 2593 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0); 2594#endif 2595 return 0; 2596} 2597 2598int 2599fwohci_add_rx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr, 2600 int poffset, struct fwdma_alloc *dummy_dma) 2601{ 2602 struct fwohcidb *db = db_tr->db; 2603 struct fw_xferq *ir; 2604 int i, ldesc; 2605 bus_addr_t dbuf[2]; 2606 int dsiz[2]; 2607 2608 ir = &dbch->xferq; 2609 if (ir->buf == NULL && (dbch->xferq.flag & FWXFERQ_EXTBUF) == 0) { 2610 if (db_tr->buf == NULL) { 2611 db_tr->buf = fwdma_malloc_size(dbch->dmat, 2612 &db_tr->dma_map, ir->psize, &dbuf[0], 2613 BUS_DMA_NOWAIT); 2614 if (db_tr->buf == NULL) 2615 return(ENOMEM); 2616 } 2617 db_tr->dbcnt = 1; 2618 dsiz[0] = ir->psize; 2619 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 2620 BUS_DMASYNC_PREREAD); 2621 } else { 2622 db_tr->dbcnt = 0; 2623 if (dummy_dma != NULL) { 2624 dsiz[db_tr->dbcnt] = sizeof(uint32_t); 2625 dbuf[db_tr->dbcnt++] = dummy_dma->bus_addr; 2626 } 2627 dsiz[db_tr->dbcnt] = ir->psize; 2628 if (ir->buf != NULL) { 2629 db_tr->buf = fwdma_v_addr(ir->buf, poffset); 2630 dbuf[db_tr->dbcnt] = fwdma_bus_addr( ir->buf, poffset); 2631 } 2632 db_tr->dbcnt++; 2633 } 2634 for(i = 0 ; i < db_tr->dbcnt ; i++){ 2635 FWOHCI_DMA_WRITE(db[i].db.desc.addr, dbuf[i]); 2636 FWOHCI_DMA_WRITE(db[i].db.desc.cmd, OHCI_INPUT_MORE | dsiz[i]); 2637 if (ir->flag & FWXFERQ_STREAM) { 2638 FWOHCI_DMA_SET(db[i].db.desc.cmd, OHCI_UPDATE); 2639 } 2640 FWOHCI_DMA_WRITE(db[i].db.desc.res, dsiz[i]); 2641 } 2642 ldesc = db_tr->dbcnt - 1; 2643 if (ir->flag & FWXFERQ_STREAM) { 2644 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_INPUT_LAST); 2645 } 2646 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_BRANCH_ALWAYS); 2647 return 0; 2648} 2649 2650 2651static int 2652fwohci_arcv_swap(struct fw_pkt *fp, int len) 2653{ 2654 struct fw_pkt *fp0; 2655 uint32_t ld0; 2656 int slen, hlen; 2657#if BYTE_ORDER == BIG_ENDIAN 2658 int i; 2659#endif 2660 2661 ld0 = FWOHCI_DMA_READ(fp->mode.ld[0]); 2662#if 0 2663 printf("ld0: x%08x\n", ld0); 2664#endif 2665 fp0 = (struct fw_pkt *)&ld0; 2666 /* determine length to swap */ 2667 switch (fp0->mode.common.tcode) { 2668 case FWTCODE_RREQQ: 2669 case FWTCODE_WRES: 2670 case FWTCODE_WREQQ: 2671 case FWTCODE_RRESQ: 2672 case FWOHCITCODE_PHY: 2673 slen = 12; 2674 break; 2675 case FWTCODE_RREQB: 2676 case FWTCODE_WREQB: 2677 case FWTCODE_LREQ: 2678 case FWTCODE_RRESB: 2679 case FWTCODE_LRES: 2680 slen = 16; 2681 break; 2682 default: 2683 printf("Unknown tcode %d\n", fp0->mode.common.tcode); 2684 return(0); 2685 } 2686 hlen = tinfo[fp0->mode.common.tcode].hdr_len; 2687 if (hlen > len) { 2688 if (firewire_debug) 2689 printf("splitted header\n"); 2690 return(-hlen); 2691 } 2692#if BYTE_ORDER == BIG_ENDIAN 2693 for(i = 0; i < slen/4; i ++) 2694 fp->mode.ld[i] = FWOHCI_DMA_READ(fp->mode.ld[i]); 2695#endif 2696 return(hlen); 2697} 2698 2699static int 2700fwohci_get_plen(struct fwohci_softc *sc, struct fwohci_dbch *dbch, struct fw_pkt *fp) 2701{ 2702 struct tcode_info *info; 2703 int r; 2704 2705 info = &tinfo[fp->mode.common.tcode]; 2706 r = info->hdr_len + sizeof(uint32_t); 2707 if ((info->flag & FWTI_BLOCK_ASY) != 0) 2708 r += roundup2(fp->mode.wreqb.len, sizeof(uint32_t)); 2709 2710 if (r == sizeof(uint32_t)) { 2711 /* XXX */ 2712 device_printf(sc->fc.dev, "Unknown tcode %d\n", 2713 fp->mode.common.tcode); 2714 return (-1); 2715 } 2716 2717 if (r > dbch->xferq.psize) { 2718 device_printf(sc->fc.dev, "Invalid packet length %d\n", r); 2719 return (-1); 2720 /* panic ? */ 2721 } 2722 2723 return r; 2724} 2725 2726static void 2727fwohci_arcv_free_buf(struct fwohci_softc *sc, struct fwohci_dbch *dbch, 2728 struct fwohcidb_tr *db_tr, uint32_t off, int wake) 2729{ 2730 struct fwohcidb *db = &db_tr->db[0]; 2731 2732 FWOHCI_DMA_CLEAR(db->db.desc.depend, 0xf); 2733 FWOHCI_DMA_WRITE(db->db.desc.res, dbch->xferq.psize); 2734 FWOHCI_DMA_SET(dbch->bottom->db[0].db.desc.depend, 1); 2735 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 2736 dbch->bottom = db_tr; 2737 2738 if (wake) 2739 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE); 2740} 2741 2742static void 2743fwohci_arcv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count) 2744{ 2745 struct fwohcidb_tr *db_tr; 2746 struct iovec vec[2]; 2747 struct fw_pkt pktbuf; 2748 int nvec; 2749 struct fw_pkt *fp; 2750 uint8_t *ld; 2751 uint32_t stat, off, status, event; 2752 u_int spd; 2753 int len, plen, hlen, pcnt, offset; 2754 int s; 2755 caddr_t buf; 2756 int resCount; 2757 2758 if(&sc->arrq == dbch){ 2759 off = OHCI_ARQOFF; 2760 }else if(&sc->arrs == dbch){ 2761 off = OHCI_ARSOFF; 2762 }else{ 2763 return; 2764 } 2765 2766 s = splfw(); 2767 db_tr = dbch->top; 2768 pcnt = 0; 2769 /* XXX we cannot handle a packet which lies in more than two buf */ 2770 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD); 2771 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE); 2772 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) >> OHCI_STATUS_SHIFT; 2773 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) & OHCI_COUNT_MASK; 2774 while (status & OHCI_CNTL_DMA_ACTIVE) { 2775#if 0 2776 2777 if (off == OHCI_ARQOFF) 2778 printf("buf 0x%08x, status 0x%04x, resCount 0x%04x\n", 2779 db_tr->bus_addr, status, resCount); 2780#endif 2781 len = dbch->xferq.psize - resCount; 2782 ld = (uint8_t *)db_tr->buf; 2783 if (dbch->pdb_tr == NULL) { 2784 len -= dbch->buf_offset; 2785 ld += dbch->buf_offset; 2786 } 2787 if (len > 0) 2788 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 2789 BUS_DMASYNC_POSTREAD); 2790 while (len > 0 ) { 2791 if (count >= 0 && count-- == 0) 2792 goto out; 2793 if(dbch->pdb_tr != NULL){ 2794 /* we have a fragment in previous buffer */ 2795 int rlen; 2796 2797 offset = dbch->buf_offset; 2798 if (offset < 0) 2799 offset = - offset; 2800 buf = dbch->pdb_tr->buf + offset; 2801 rlen = dbch->xferq.psize - offset; 2802 if (firewire_debug) 2803 printf("rlen=%d, offset=%d\n", 2804 rlen, dbch->buf_offset); 2805 if (dbch->buf_offset < 0) { 2806 /* splitted in header, pull up */ 2807 char *p; 2808 2809 p = (char *)&pktbuf; 2810 bcopy(buf, p, rlen); 2811 p += rlen; 2812 /* this must be too long but harmless */ 2813 rlen = sizeof(pktbuf) - rlen; 2814 if (rlen < 0) 2815 printf("why rlen < 0\n"); 2816 bcopy(db_tr->buf, p, rlen); 2817 ld += rlen; 2818 len -= rlen; 2819 hlen = fwohci_arcv_swap(&pktbuf, sizeof(pktbuf)); 2820 if (hlen <= 0) { 2821 printf("hlen should be positive."); 2822 goto err; 2823 } 2824 offset = sizeof(pktbuf); 2825 vec[0].iov_base = (char *)&pktbuf; 2826 vec[0].iov_len = offset; 2827 } else { 2828 /* splitted in payload */ 2829 offset = rlen; 2830 vec[0].iov_base = buf; 2831 vec[0].iov_len = rlen; 2832 } 2833 fp=(struct fw_pkt *)vec[0].iov_base; 2834 nvec = 1; 2835 } else { 2836 /* no fragment in previous buffer */ 2837 fp=(struct fw_pkt *)ld; 2838 hlen = fwohci_arcv_swap(fp, len); 2839 if (hlen == 0) 2840 goto err; 2841 if (hlen < 0) { 2842 dbch->pdb_tr = db_tr; 2843 dbch->buf_offset = - dbch->buf_offset; 2844 /* sanity check */ 2845 if (resCount != 0) { 2846 printf("resCount=%d hlen=%d\n", 2847 resCount, hlen); 2848 goto err; 2849 } 2850 goto out; 2851 } 2852 offset = 0; 2853 nvec = 0; 2854 } 2855 plen = fwohci_get_plen(sc, dbch, fp) - offset; 2856 if (plen < 0) { 2857 /* minimum header size + trailer 2858 = sizeof(fw_pkt) so this shouldn't happens */ 2859 printf("plen(%d) is negative! offset=%d\n", 2860 plen, offset); 2861 goto err; 2862 } 2863 if (plen > 0) { 2864 len -= plen; 2865 if (len < 0) { 2866 dbch->pdb_tr = db_tr; 2867 if (firewire_debug) 2868 printf("splitted payload\n"); 2869 /* sanity check */ 2870 if (resCount != 0) { 2871 printf("resCount=%d plen=%d" 2872 " len=%d\n", 2873 resCount, plen, len); 2874 goto err; 2875 } 2876 goto out; 2877 } 2878 vec[nvec].iov_base = ld; 2879 vec[nvec].iov_len = plen; 2880 nvec ++; 2881 ld += plen; 2882 } 2883 dbch->buf_offset = ld - (uint8_t *)db_tr->buf; 2884 if (nvec == 0) 2885 printf("nvec == 0\n"); 2886 2887/* DMA result-code will be written at the tail of packet */ 2888 stat = FWOHCI_DMA_READ(*(uint32_t *)(ld - sizeof(struct fwohci_trailer))); 2889#if 0 2890 printf("plen: %d, stat %x\n", 2891 plen ,stat); 2892#endif 2893 spd = (stat >> 21) & 0x3; 2894 event = (stat >> 16) & 0x1f; 2895 switch (event) { 2896 case FWOHCIEV_ACKPEND: 2897#if 0 2898 printf("fwohci_arcv: ack pending tcode=0x%x..\n", fp->mode.common.tcode); 2899#endif 2900 /* fall through */ 2901 case FWOHCIEV_ACKCOMPL: 2902 { 2903 struct fw_rcv_buf rb; 2904 2905 if ((vec[nvec-1].iov_len -= 2906 sizeof(struct fwohci_trailer)) == 0) 2907 nvec--; 2908 rb.fc = &sc->fc; 2909 rb.vec = vec; 2910 rb.nvec = nvec; 2911 rb.spd = spd; 2912 fw_rcv(&rb); 2913 break; 2914 } 2915 case FWOHCIEV_BUSRST: 2916 if ((sc->fc.status != FWBUSRESET) && 2917 (sc->fc.status != FWBUSINIT)) 2918 printf("got BUSRST packet!?\n"); 2919 break; 2920 default: 2921 device_printf(sc->fc.dev, 2922 "Async DMA Receive error err=%02x %s" 2923 " plen=%d offset=%d len=%d status=0x%08x" 2924 " tcode=0x%x, stat=0x%08x\n", 2925 event, fwohcicode[event], plen, 2926 dbch->buf_offset, len, 2927 OREAD(sc, OHCI_DMACTL(off)), 2928 fp->mode.common.tcode, stat); 2929#if 1 /* XXX */ 2930 goto err; 2931#endif 2932 break; 2933 } 2934 pcnt ++; 2935 if (dbch->pdb_tr != NULL) { 2936 fwohci_arcv_free_buf(sc, dbch, dbch->pdb_tr, 2937 off, 1); 2938 dbch->pdb_tr = NULL; 2939 } 2940 2941 } 2942out: 2943 if (resCount == 0) { 2944 /* done on this buffer */ 2945 if (dbch->pdb_tr == NULL) { 2946 fwohci_arcv_free_buf(sc, dbch, db_tr, off, 1); 2947 dbch->buf_offset = 0; 2948 } else 2949 if (dbch->pdb_tr != db_tr) 2950 printf("pdb_tr != db_tr\n"); 2951 db_tr = STAILQ_NEXT(db_tr, link); 2952 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) 2953 >> OHCI_STATUS_SHIFT; 2954 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) 2955 & OHCI_COUNT_MASK; 2956 /* XXX check buffer overrun */ 2957 dbch->top = db_tr; 2958 } else { 2959 dbch->buf_offset = dbch->xferq.psize - resCount; 2960 break; 2961 } 2962 /* XXX make sure DMA is not dead */ 2963 } 2964#if 0 2965 if (pcnt < 1) 2966 printf("fwohci_arcv: no packets\n"); 2967#endif 2968 splx(s); 2969 return; 2970 2971err: 2972 device_printf(sc->fc.dev, "AR DMA status=%x, ", 2973 OREAD(sc, OHCI_DMACTL(off))); 2974 dbch->pdb_tr = NULL; 2975 /* skip until resCount != 0 */ 2976 printf(" skip buffer"); 2977 while (resCount == 0) { 2978 printf(" #"); 2979 fwohci_arcv_free_buf(sc, dbch, db_tr, off, 0); 2980 db_tr = STAILQ_NEXT(db_tr, link); 2981 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) 2982 & OHCI_COUNT_MASK; 2983 } 2984 printf(" done\n"); 2985 dbch->top = db_tr; 2986 dbch->buf_offset = dbch->xferq.psize - resCount; 2987 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE); 2988 splx(s); 2989} 2990