fwohci.c revision 108701
1/* 2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the acknowledgement as bellow: 15 * 16 * This product includes software developed by K. Kobayashi and H. Shimokawa 17 * 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: head/sys/dev/firewire/fwohci.c 108701 2003-01-05 06:21:30Z simokawa $ 34 * 35 */ 36 37#define ATRQ_CH 0 38#define ATRS_CH 1 39#define ARRQ_CH 2 40#define ARRS_CH 3 41#define ITX_CH 4 42#define IRX_CH 0x24 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/types.h> 47#include <sys/mbuf.h> 48#include <sys/mman.h> 49#include <sys/socket.h> 50#include <sys/socketvar.h> 51#include <sys/signalvar.h> 52#include <sys/malloc.h> 53#include <sys/uio.h> 54#include <sys/sockio.h> 55#include <sys/bus.h> 56#include <sys/kernel.h> 57#include <sys/conf.h> 58 59#include <machine/bus.h> 60#include <machine/resource.h> 61#include <sys/rman.h> 62 63#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 64#include <machine/clock.h> 65#include <pci/pcivar.h> 66#include <pci/pcireg.h> 67#include <vm/vm.h> 68#include <vm/vm_extern.h> 69#include <vm/pmap.h> /* for vtophys proto */ 70 71#include <dev/firewire/firewire.h> 72#include <dev/firewire/firewirereg.h> 73#include <dev/firewire/fwohcireg.h> 74#include <dev/firewire/fwohcivar.h> 75#include <dev/firewire/firewire_phy.h> 76 77#undef OHCI_DEBUG 78 79static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL", 80 "STOR","LOAD","NOP ","STOP",}; 81static char dbkey[8][0x10]={"ST0", "ST1","ST2","ST3", 82 "UNDEF","REG","SYS","DEV"}; 83char fwohcicode[32][0x20]={ 84 "No stat","Undef","long","miss Ack err", 85 "underrun","overrun","desc err", "data read err", 86 "data write err","bus reset","timeout","tcode err", 87 "Undef","Undef","unknown event","flushed", 88 "Undef","ack complete","ack pend","Undef", 89 "ack busy_X","ack busy_A","ack busy_B","Undef", 90 "Undef","Undef","Undef","ack tardy", 91 "Undef","ack data_err","ack type_err",""}; 92#define MAX_SPEED 2 93extern char linkspeed[MAX_SPEED+1][0x10]; 94static char dbcond[4][0x10]={"NEV","C=1", "C=0", "ALL"}; 95u_int32_t tagbit[4] = { 1 << 28, 1 << 29, 1 << 30, 1 << 31}; 96 97static struct tcode_info tinfo[] = { 98/* hdr_len block flag*/ 99/* 0 WREQQ */ {16, FWTI_REQ | FWTI_TLABEL}, 100/* 1 WREQB */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY}, 101/* 2 WRES */ {12, FWTI_RES}, 102/* 3 XXX */ { 0, 0}, 103/* 4 RREQQ */ {12, FWTI_REQ | FWTI_TLABEL}, 104/* 5 RREQB */ {16, FWTI_REQ | FWTI_TLABEL}, 105/* 6 RRESQ */ {16, FWTI_RES}, 106/* 7 RRESB */ {16, FWTI_RES | FWTI_BLOCK_ASY}, 107/* 8 CYCS */ { 0, 0}, 108/* 9 LREQ */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY}, 109/* a STREAM */ { 4, FWTI_REQ | FWTI_BLOCK_STR}, 110/* b LRES */ {16, FWTI_RES | FWTI_BLOCK_ASY}, 111/* c XXX */ { 0, 0}, 112/* d XXX */ { 0, 0}, 113/* e PHY */ {12, FWTI_REQ}, 114/* f XXX */ { 0, 0} 115}; 116 117#define OHCI_WRITE_SIGMASK 0xffff0000 118#define OHCI_READ_SIGMASK 0xffff0000 119 120#define OWRITE(sc, r, x) bus_space_write_4((sc)->bst, (sc)->bsh, (r), (x)) 121#define OREAD(sc, r) bus_space_read_4((sc)->bst, (sc)->bsh, (r)) 122 123static void fwohci_ibr __P((struct firewire_comm *)); 124static void fwohci_db_init __P((struct fwohci_dbch *)); 125static void fwohci_db_free __P((struct fwohci_dbch *)); 126static void fwohci_arcv __P((struct fwohci_softc *, struct fwohci_dbch *, int)); 127static void fwohci_ircv __P((struct fwohci_softc *, struct fwohci_dbch *, int)); 128static void fwohci_txd __P((struct fwohci_softc *, struct fwohci_dbch *)); 129static void fwohci_start_atq __P((struct firewire_comm *)); 130static void fwohci_start_ats __P((struct firewire_comm *)); 131static void fwohci_start __P((struct fwohci_softc *, struct fwohci_dbch *)); 132static void fwohci_drain_atq __P((struct firewire_comm *, struct fw_xfer *)); 133static void fwohci_drain_ats __P((struct firewire_comm *, struct fw_xfer *)); 134static void fwohci_drain __P((struct firewire_comm *, struct fw_xfer *, struct fwohci_dbch *)); 135static u_int32_t fwphy_wrdata __P(( struct fwohci_softc *, u_int32_t, u_int32_t)); 136static u_int32_t fwphy_rddata __P(( struct fwohci_softc *, u_int32_t)); 137static int fwohci_rx_enable __P((struct fwohci_softc *, struct fwohci_dbch *)); 138static int fwohci_tx_enable __P((struct fwohci_softc *, struct fwohci_dbch *)); 139static int fwohci_irx_enable __P((struct firewire_comm *, int)); 140static int fwohci_irxpp_enable __P((struct firewire_comm *, int)); 141static int fwohci_irxbuf_enable __P((struct firewire_comm *, int)); 142static int fwohci_irx_disable __P((struct firewire_comm *, int)); 143static void fwohci_irx_post __P((struct firewire_comm *, u_int32_t *)); 144static int fwohci_itxbuf_enable __P((struct firewire_comm *, int)); 145static int fwohci_itx_disable __P((struct firewire_comm *, int)); 146static void fwohci_timeout __P((void *)); 147static void fwohci_poll __P((struct firewire_comm *, int, int)); 148static void fwohci_set_intr __P((struct firewire_comm *, int)); 149static int fwohci_add_rx_buf __P((struct fwohcidb_tr *, unsigned short, int, void *, void *)); 150static int fwohci_add_tx_buf __P((struct fwohcidb_tr *, unsigned short, int, void *)); 151static void dump_db __P((struct fwohci_softc *, u_int32_t)); 152static void print_db __P((volatile struct fwohcidb *, u_int32_t , u_int32_t)); 153static void dump_dma __P((struct fwohci_softc *, u_int32_t)); 154static u_int32_t fwohci_cyctimer __P((struct firewire_comm *)); 155static void fwohci_rbuf_update __P((struct fwohci_softc *, int)); 156static void fwohci_tbuf_update __P((struct fwohci_softc *, int)); 157void fwohci_txbufdb __P((struct fwohci_softc *, int , struct fw_bulkxfer *)); 158 159/* 160 * memory allocated for DMA programs 161 */ 162#define DMA_PROG_ALLOC (8 * PAGE_SIZE) 163 164/* #define NDB 1024 */ 165#define NDB FWMAXQUEUE 166#define NDVDB (DVBUF * NDB) 167 168#define OHCI_VERSION 0x00 169#define OHCI_CROMHDR 0x18 170#define OHCI_BUS_OPT 0x20 171#define OHCI_BUSIRMC (1 << 31) 172#define OHCI_BUSCMC (1 << 30) 173#define OHCI_BUSISC (1 << 29) 174#define OHCI_BUSBMC (1 << 28) 175#define OHCI_BUSPMC (1 << 27) 176#define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\ 177 OHCI_BUSBMC | OHCI_BUSPMC 178 179#define OHCI_EUID_HI 0x24 180#define OHCI_EUID_LO 0x28 181 182#define OHCI_CROMPTR 0x34 183#define OHCI_HCCCTL 0x50 184#define OHCI_HCCCTLCLR 0x54 185#define OHCI_AREQHI 0x100 186#define OHCI_AREQHICLR 0x104 187#define OHCI_AREQLO 0x108 188#define OHCI_AREQLOCLR 0x10c 189#define OHCI_PREQHI 0x110 190#define OHCI_PREQHICLR 0x114 191#define OHCI_PREQLO 0x118 192#define OHCI_PREQLOCLR 0x11c 193#define OHCI_PREQUPPER 0x120 194 195#define OHCI_SID_BUF 0x64 196#define OHCI_SID_CNT 0x68 197#define OHCI_SID_CNT_MASK 0xffc 198 199#define OHCI_IT_STAT 0x90 200#define OHCI_IT_STATCLR 0x94 201#define OHCI_IT_MASK 0x98 202#define OHCI_IT_MASKCLR 0x9c 203 204#define OHCI_IR_STAT 0xa0 205#define OHCI_IR_STATCLR 0xa4 206#define OHCI_IR_MASK 0xa8 207#define OHCI_IR_MASKCLR 0xac 208 209#define OHCI_LNKCTL 0xe0 210#define OHCI_LNKCTLCLR 0xe4 211 212#define OHCI_PHYACCESS 0xec 213#define OHCI_CYCLETIMER 0xf0 214 215#define OHCI_DMACTL(off) (off) 216#define OHCI_DMACTLCLR(off) (off + 4) 217#define OHCI_DMACMD(off) (off + 0xc) 218#define OHCI_DMAMATCH(off) (off + 0x10) 219 220#define OHCI_ATQOFF 0x180 221#define OHCI_ATQCTL OHCI_ATQOFF 222#define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4) 223#define OHCI_ATQCMD (OHCI_ATQOFF + 0xc) 224#define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10) 225 226#define OHCI_ATSOFF 0x1a0 227#define OHCI_ATSCTL OHCI_ATSOFF 228#define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4) 229#define OHCI_ATSCMD (OHCI_ATSOFF + 0xc) 230#define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10) 231 232#define OHCI_ARQOFF 0x1c0 233#define OHCI_ARQCTL OHCI_ARQOFF 234#define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4) 235#define OHCI_ARQCMD (OHCI_ARQOFF + 0xc) 236#define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10) 237 238#define OHCI_ARSOFF 0x1e0 239#define OHCI_ARSCTL OHCI_ARSOFF 240#define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4) 241#define OHCI_ARSCMD (OHCI_ARSOFF + 0xc) 242#define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10) 243 244#define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH)) 245#define OHCI_ITCTL(CH) (OHCI_ITOFF(CH)) 246#define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4) 247#define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc) 248 249#define OHCI_IROFF(CH) (0x400 + 0x20 * (CH)) 250#define OHCI_IRCTL(CH) (OHCI_IROFF(CH)) 251#define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4) 252#define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc) 253#define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10) 254 255d_ioctl_t fwohci_ioctl; 256 257/* 258 * Communication with PHY device 259 */ 260static u_int32_t 261fwphy_wrdata( struct fwohci_softc *sc, u_int32_t addr, u_int32_t data) 262{ 263 u_int32_t fun; 264 265 addr &= 0xf; 266 data &= 0xff; 267 268 fun = (PHYDEV_WRCMD | (addr << PHYDEV_REGADDR) | (data << PHYDEV_WRDATA)); 269 OWRITE(sc, OHCI_PHYACCESS, fun); 270 DELAY(100); 271 272 return(fwphy_rddata( sc, addr)); 273} 274 275static u_int32_t 276fwohci_set_bus_manager(struct firewire_comm *fc, u_int node) 277{ 278 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 279 int i; 280 u_int32_t bm; 281 282#define OHCI_CSR_DATA 0x0c 283#define OHCI_CSR_COMP 0x10 284#define OHCI_CSR_CONT 0x14 285#define OHCI_BUS_MANAGER_ID 0 286 287 OWRITE(sc, OHCI_CSR_DATA, node); 288 OWRITE(sc, OHCI_CSR_COMP, 0x3f); 289 OWRITE(sc, OHCI_CSR_CONT, OHCI_BUS_MANAGER_ID); 290 for (i = 0; !(OREAD(sc, OHCI_CSR_CONT) & (1<<31)) && (i < 1000); i++) 291 DELAY(100); 292 bm = OREAD(sc, OHCI_CSR_DATA); 293 if((bm & 0x3f) == 0x3f) 294 bm = node; 295 if (bootverbose) 296 device_printf(sc->fc.dev, 297 "fw_set_bus_manager: %d->%d (loop=%d)\n", bm, node, i); 298 299 return(bm); 300} 301 302static u_int32_t 303fwphy_rddata(struct fwohci_softc *sc, u_int addr) 304{ 305 u_int32_t fun, stat; 306 u_int i, retry = 0; 307 308 addr &= 0xf; 309#define MAX_RETRY 100 310again: 311 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_REG_FAIL); 312 fun = PHYDEV_RDCMD | (addr << PHYDEV_REGADDR); 313 OWRITE(sc, OHCI_PHYACCESS, fun); 314 for ( i = 0 ; i < MAX_RETRY ; i ++ ){ 315 fun = OREAD(sc, OHCI_PHYACCESS); 316 if ((fun & PHYDEV_RDCMD) == 0 && (fun & PHYDEV_RDDONE) != 0) 317 break; 318 DELAY(1000); 319 } 320 if(i >= MAX_RETRY) { 321 device_printf(sc->fc.dev, "cannot read phy\n"); 322#if 0 323 return 0; /* XXX */ 324#else 325 if (++retry < MAX_RETRY) { 326 DELAY(1000); 327 goto again; 328 } 329#endif 330 } 331 /* Make sure that SCLK is started */ 332 stat = OREAD(sc, FWOHCI_INTSTAT); 333 if ((stat & OHCI_INT_REG_FAIL) != 0 || 334 ((fun >> PHYDEV_REGADDR) & 0xf) != addr) { 335 if (++retry < MAX_RETRY) { 336 DELAY(1000); 337 goto again; 338 } 339 } 340 if (bootverbose || retry >= MAX_RETRY) 341 device_printf(sc->fc.dev, 342 "fwphy_rddata: loop=%d, retry=%d\n", i, retry); 343#undef MAX_RETRY 344 return((fun >> PHYDEV_RDDATA )& 0xff); 345} 346/* Device specific ioctl. */ 347int 348fwohci_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td) 349{ 350 struct firewire_softc *sc; 351 struct fwohci_softc *fc; 352 int unit = DEV2UNIT(dev); 353 int err = 0; 354 struct fw_reg_req_t *reg = (struct fw_reg_req_t *) data; 355 u_int32_t *dmach = (u_int32_t *) data; 356 357 sc = devclass_get_softc(firewire_devclass, unit); 358 if(sc == NULL){ 359 return(EINVAL); 360 } 361 fc = (struct fwohci_softc *)sc->fc; 362 363 if (!data) 364 return(EINVAL); 365 366 switch (cmd) { 367 case FWOHCI_WRREG: 368#define OHCI_MAX_REG 0x800 369 if(reg->addr <= OHCI_MAX_REG){ 370 OWRITE(fc, reg->addr, reg->data); 371 reg->data = OREAD(fc, reg->addr); 372 }else{ 373 err = EINVAL; 374 } 375 break; 376 case FWOHCI_RDREG: 377 if(reg->addr <= OHCI_MAX_REG){ 378 reg->data = OREAD(fc, reg->addr); 379 }else{ 380 err = EINVAL; 381 } 382 break; 383/* Read DMA descriptors for debug */ 384 case DUMPDMA: 385 if(*dmach <= OHCI_MAX_DMA_CH ){ 386 dump_dma(fc, *dmach); 387 dump_db(fc, *dmach); 388 }else{ 389 err = EINVAL; 390 } 391 break; 392 default: 393 break; 394 } 395 return err; 396} 397 398static int 399fwohci_probe_phy(struct fwohci_softc *sc, device_t dev) 400{ 401 u_int32_t reg, reg2; 402 int e1394a = 1; 403/* 404 * probe PHY parameters 405 * 0. to prove PHY version, whether compliance of 1394a. 406 * 1. to probe maximum speed supported by the PHY and 407 * number of port supported by core-logic. 408 * It is not actually available port on your PC . 409 */ 410 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS); 411#if 0 412 /* XXX wait for SCLK. */ 413 DELAY(100000); 414#endif 415 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 416 417 if((reg >> 5) != 7 ){ 418 sc->fc.mode &= ~FWPHYASYST; 419 sc->fc.nport = reg & FW_PHY_NP; 420 sc->fc.speed = reg & FW_PHY_SPD >> 6; 421 if (sc->fc.speed > MAX_SPEED) { 422 device_printf(dev, "invalid speed %d (fixed to %d).\n", 423 sc->fc.speed, MAX_SPEED); 424 sc->fc.speed = MAX_SPEED; 425 } 426 device_printf(dev, 427 "Phy 1394 only %s, %d ports.\n", 428 linkspeed[sc->fc.speed], sc->fc.nport); 429 }else{ 430 reg2 = fwphy_rddata(sc, FW_PHY_ESPD_REG); 431 sc->fc.mode |= FWPHYASYST; 432 sc->fc.nport = reg & FW_PHY_NP; 433 sc->fc.speed = (reg2 & FW_PHY_ESPD) >> 5; 434 if (sc->fc.speed > MAX_SPEED) { 435 device_printf(dev, "invalid speed %d (fixed to %d).\n", 436 sc->fc.speed, MAX_SPEED); 437 sc->fc.speed = MAX_SPEED; 438 } 439 device_printf(dev, 440 "Phy 1394a available %s, %d ports.\n", 441 linkspeed[sc->fc.speed], sc->fc.nport); 442 443 /* check programPhyEnable */ 444 reg2 = fwphy_rddata(sc, 5); 445#if 0 446 if (e1394a && (OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_PRPHY)) { 447#else /* XXX force to enable 1394a */ 448 if (e1394a) { 449#endif 450 if (bootverbose) 451 device_printf(dev, 452 "Enable 1394a Enhancements\n"); 453 /* enable EAA EMC */ 454 reg2 |= 0x03; 455 /* set aPhyEnhanceEnable */ 456 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_PHYEN); 457 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_PRPHY); 458 } else { 459 /* for safe */ 460 reg2 &= ~0x83; 461 } 462 reg2 = fwphy_wrdata(sc, 5, reg2); 463 } 464 465 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 466 if((reg >> 5) == 7 ){ 467 reg = fwphy_rddata(sc, 4); 468 reg |= 1 << 6; 469 fwphy_wrdata(sc, 4, reg); 470 reg = fwphy_rddata(sc, 4); 471 } 472 return 0; 473} 474 475 476void 477fwohci_reset(struct fwohci_softc *sc, device_t dev) 478{ 479 int i, max_rec, speed; 480 u_int32_t reg, reg2; 481 struct fwohcidb_tr *db_tr; 482 483 /* Disable interrupt */ 484 OWRITE(sc, FWOHCI_INTMASKCLR, ~0); 485 486 /* Now stopping all DMA channel */ 487 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 488 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 489 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 490 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 491 492 OWRITE(sc, OHCI_IR_MASKCLR, ~0); 493 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 494 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 495 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 496 } 497 498 /* FLUSH FIFO and reset Transmitter/Reciever */ 499 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 500 if (bootverbose) 501 device_printf(dev, "resetting OHCI..."); 502 i = 0; 503 while(OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_RESET) { 504 if (i++ > 100) break; 505 DELAY(1000); 506 } 507 if (bootverbose) 508 printf("done (loop=%d)\n", i); 509 510 /* Probe phy */ 511 fwohci_probe_phy(sc, dev); 512 513 /* Probe link */ 514 reg = OREAD(sc, OHCI_BUS_OPT); 515 reg2 = reg | OHCI_BUSFNC; 516 max_rec = (reg & 0x0000f000) >> 12; 517 speed = (reg & 0x00000007); 518 device_printf(dev, "Link %s, max_rec %d bytes.\n", 519 linkspeed[speed], MAXREC(max_rec)); 520 /* XXX fix max_rec */ 521 sc->fc.maxrec = sc->fc.speed + 8; 522 if (max_rec != sc->fc.maxrec) { 523 reg2 = (reg2 & 0xffff0fff) | (sc->fc.maxrec << 12); 524 device_printf(dev, "max_rec %d -> %d\n", 525 MAXREC(max_rec), MAXREC(sc->fc.maxrec)); 526 } 527 if (bootverbose) 528 device_printf(dev, "BUS_OPT 0x%x -> 0x%x\n", reg, reg2); 529 OWRITE(sc, OHCI_BUS_OPT, reg2); 530 531 /* Initialize registers */ 532 OWRITE(sc, OHCI_CROMHDR, sc->fc.config_rom[0]); 533 OWRITE(sc, OHCI_CROMPTR, vtophys(&sc->fc.config_rom[0])); 534 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_BIGEND); 535 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_POSTWR); 536 OWRITE(sc, OHCI_SID_BUF, vtophys(sc->fc.sid_buf)); 537 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_SID); 538 fw_busreset(&sc->fc); 539 540 /* Enable link */ 541 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LINKEN); 542 543 /* Force to start async RX DMA */ 544 sc->arrq.xferq.flag &= ~FWXFERQ_RUNNING; 545 sc->arrs.xferq.flag &= ~FWXFERQ_RUNNING; 546 fwohci_rx_enable(sc, &sc->arrq); 547 fwohci_rx_enable(sc, &sc->arrs); 548 549 /* Initialize async TX */ 550 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 551 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 552 /* AT Retries */ 553 OWRITE(sc, FWOHCI_RETRY, 554 /* CycleLimit PhyRespRetries ATRespRetries ATReqRetries */ 555 (0xffff << 16 ) | (0x0f << 8) | (0x0f << 4) | 0x0f) ; 556 for( i = 0, db_tr = sc->atrq.top; i < sc->atrq.ndb ; 557 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 558 db_tr->xfer = NULL; 559 } 560 for( i = 0, db_tr = sc->atrs.top; i < sc->atrs.ndb ; 561 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 562 db_tr->xfer = NULL; 563 } 564 565 566 /* Enable interrupt */ 567 OWRITE(sc, FWOHCI_INTMASK, 568 OHCI_INT_ERR | OHCI_INT_PHY_SID 569 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 570 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 571 | OHCI_INT_PHY_BUS_R | OHCI_INT_PW_ERR); 572 fwohci_set_intr(&sc->fc, 1); 573 574} 575 576int 577fwohci_init(struct fwohci_softc *sc, device_t dev) 578{ 579 int i; 580 u_int32_t reg; 581 582 reg = OREAD(sc, OHCI_VERSION); 583 device_printf(dev, "OHCI version %x.%x (ROM=%d)\n", 584 (reg>>16) & 0xff, reg & 0xff, (reg>>24) & 1); 585 586/* XXX: Available Isochrounous DMA channel probe */ 587 for( i = 0 ; i < 0x20 ; i ++ ){ 588 OWRITE(sc, OHCI_IRCTL(i), OHCI_CNTL_DMA_RUN); 589 reg = OREAD(sc, OHCI_IRCTL(i)); 590 if(!(reg & OHCI_CNTL_DMA_RUN)) break; 591 OWRITE(sc, OHCI_ITCTL(i), OHCI_CNTL_DMA_RUN); 592 reg = OREAD(sc, OHCI_ITCTL(i)); 593 if(!(reg & OHCI_CNTL_DMA_RUN)) break; 594 } 595 sc->fc.nisodma = i; 596 device_printf(dev, "No. of Isochronous channel is %d.\n", i); 597 598 sc->fc.arq = &sc->arrq.xferq; 599 sc->fc.ars = &sc->arrs.xferq; 600 sc->fc.atq = &sc->atrq.xferq; 601 sc->fc.ats = &sc->atrs.xferq; 602 603 sc->arrq.xferq.start = NULL; 604 sc->arrs.xferq.start = NULL; 605 sc->atrq.xferq.start = fwohci_start_atq; 606 sc->atrs.xferq.start = fwohci_start_ats; 607 608 sc->arrq.xferq.drain = NULL; 609 sc->arrs.xferq.drain = NULL; 610 sc->atrq.xferq.drain = fwohci_drain_atq; 611 sc->atrs.xferq.drain = fwohci_drain_ats; 612 613 sc->arrq.ndesc = 1; 614 sc->arrs.ndesc = 1; 615 sc->atrq.ndesc = 6; /* equal to maximum of mbuf chains */ 616 sc->atrs.ndesc = 6 / 2; 617 618 sc->arrq.ndb = NDB; 619 sc->arrs.ndb = NDB / 2; 620 sc->atrq.ndb = NDB; 621 sc->atrs.ndb = NDB / 2; 622 623 sc->arrq.dummy = NULL; 624 sc->arrs.dummy = NULL; 625 sc->atrq.dummy = NULL; 626 sc->atrs.dummy = NULL; 627 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 628 sc->fc.it[i] = &sc->it[i].xferq; 629 sc->fc.ir[i] = &sc->ir[i].xferq; 630 sc->it[i].ndb = 0; 631 sc->ir[i].ndb = 0; 632 } 633 634 sc->fc.tcode = tinfo; 635 636 sc->cromptr = (u_int32_t *) 637 contigmalloc(CROMSIZE * 2, M_DEVBUF, M_NOWAIT, 0, ~0, 1<<10, 0); 638 639 if(sc->cromptr == NULL){ 640 device_printf(dev, "cromptr alloc failed."); 641 return ENOMEM; 642 } 643 sc->fc.dev = dev; 644 sc->fc.config_rom = &(sc->cromptr[CROMSIZE/4]); 645 646 sc->fc.config_rom[1] = 0x31333934; 647 sc->fc.config_rom[2] = 0xf000a002; 648 sc->fc.config_rom[3] = OREAD(sc, OHCI_EUID_HI); 649 sc->fc.config_rom[4] = OREAD(sc, OHCI_EUID_LO); 650 sc->fc.config_rom[5] = 0; 651 sc->fc.config_rom[0] = (4 << 24) | (5 << 16); 652 653 sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4); 654 655 656/* SID recieve buffer must allign 2^11 */ 657#define OHCI_SIDSIZE (1 << 11) 658 sc->fc.sid_buf = (u_int32_t *) vm_page_alloc_contig( OHCI_SIDSIZE, 659 0x10000, 0xffffffff, OHCI_SIDSIZE); 660 if (sc->fc.sid_buf == NULL) { 661 device_printf(dev, "sid_buf alloc failed.\n"); 662 return ENOMEM; 663 } 664 665 666 fwohci_db_init(&sc->arrq); 667 if ((sc->arrq.flags & FWOHCI_DBCH_INIT) == 0) 668 return ENOMEM; 669 670 fwohci_db_init(&sc->arrs); 671 if ((sc->arrs.flags & FWOHCI_DBCH_INIT) == 0) 672 return ENOMEM; 673 674 fwohci_db_init(&sc->atrq); 675 if ((sc->atrq.flags & FWOHCI_DBCH_INIT) == 0) 676 return ENOMEM; 677 678 fwohci_db_init(&sc->atrs); 679 if ((sc->atrs.flags & FWOHCI_DBCH_INIT) == 0) 680 return ENOMEM; 681 682 reg = OREAD(sc, FWOHCIGUID_H); 683 for( i = 0 ; i < 4 ; i ++){ 684 sc->fc.eui[3 - i] = reg & 0xff; 685 reg = reg >> 8; 686 } 687 reg = OREAD(sc, FWOHCIGUID_L); 688 for( i = 0 ; i < 4 ; i ++){ 689 sc->fc.eui[7 - i] = reg & 0xff; 690 reg = reg >> 8; 691 } 692 device_printf(dev, "EUI64 %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 693 sc->fc.eui[0], sc->fc.eui[1], sc->fc.eui[2], sc->fc.eui[3], 694 sc->fc.eui[4], sc->fc.eui[5], sc->fc.eui[6], sc->fc.eui[7]); 695 sc->fc.ioctl = fwohci_ioctl; 696 sc->fc.cyctimer = fwohci_cyctimer; 697 sc->fc.set_bmr = fwohci_set_bus_manager; 698 sc->fc.ibr = fwohci_ibr; 699 sc->fc.irx_enable = fwohci_irx_enable; 700 sc->fc.irx_disable = fwohci_irx_disable; 701 702 sc->fc.itx_enable = fwohci_itxbuf_enable; 703 sc->fc.itx_disable = fwohci_itx_disable; 704 sc->fc.irx_post = fwohci_irx_post; 705 sc->fc.itx_post = NULL; 706 sc->fc.timeout = fwohci_timeout; 707 sc->fc.poll = fwohci_poll; 708 sc->fc.set_intr = fwohci_set_intr; 709 710 fw_init(&sc->fc); 711 fwohci_reset(sc, dev); 712 713 return 0; 714} 715 716void 717fwohci_timeout(void *arg) 718{ 719 struct fwohci_softc *sc; 720 721 sc = (struct fwohci_softc *)arg; 722 sc->fc.timeouthandle = timeout(fwohci_timeout, 723 (void *)sc, FW_XFERTIMEOUT * hz * 10); 724} 725 726u_int32_t 727fwohci_cyctimer(struct firewire_comm *fc) 728{ 729 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 730 return(OREAD(sc, OHCI_CYCLETIMER)); 731} 732 733int 734fwohci_detach(struct fwohci_softc *sc, device_t dev) 735{ 736 int i; 737 738 if (sc->fc.sid_buf != NULL) 739 contigfree((void *)(uintptr_t)sc->fc.sid_buf, 740 OHCI_SIDSIZE, M_DEVBUF); 741 if (sc->cromptr != NULL) 742 contigfree((void *)sc->cromptr, CROMSIZE * 2, M_DEVBUF); 743 744 fwohci_db_free(&sc->arrq); 745 fwohci_db_free(&sc->arrs); 746 747 fwohci_db_free(&sc->atrq); 748 fwohci_db_free(&sc->atrs); 749 750 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 751 fwohci_db_free(&sc->it[i]); 752 fwohci_db_free(&sc->ir[i]); 753 } 754 755 return 0; 756} 757 758#define LAST_DB(dbtr, db) do { \ 759 struct fwohcidb_tr *_dbtr = (dbtr); \ 760 int _cnt = _dbtr->dbcnt; \ 761 db = &_dbtr->db[ (_cnt > 2) ? (_cnt -1) : 0]; \ 762} while (0) 763 764static void 765fwohci_start(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 766{ 767 int i, s; 768 int tcode, hdr_len, hdr_off, len; 769 int fsegment = -1; 770 u_int32_t off; 771 struct fw_xfer *xfer; 772 struct fw_pkt *fp; 773 volatile struct fwohci_txpkthdr *ohcifp; 774 struct fwohcidb_tr *db_tr; 775 volatile struct fwohcidb *db; 776 struct mbuf *m; 777 struct tcode_info *info; 778 static int maxdesc=0; 779 780 if(&sc->atrq == dbch){ 781 off = OHCI_ATQOFF; 782 }else if(&sc->atrs == dbch){ 783 off = OHCI_ATSOFF; 784 }else{ 785 return; 786 } 787 788 if (dbch->flags & FWOHCI_DBCH_FULL) 789 return; 790 791 s = splfw(); 792 db_tr = dbch->top; 793txloop: 794 xfer = STAILQ_FIRST(&dbch->xferq.q); 795 if(xfer == NULL){ 796 goto kick; 797 } 798 if(dbch->xferq.queued == 0 ){ 799 device_printf(sc->fc.dev, "TX queue empty\n"); 800 } 801 STAILQ_REMOVE_HEAD(&dbch->xferq.q, link); 802 db_tr->xfer = xfer; 803 xfer->state = FWXF_START; 804 dbch->xferq.packets++; 805 806 fp = (struct fw_pkt *)(xfer->send.buf + xfer->send.off); 807 tcode = fp->mode.common.tcode; 808 809 ohcifp = (volatile struct fwohci_txpkthdr *) db_tr->db[1].db.immed; 810 info = &tinfo[tcode]; 811 hdr_len = hdr_off = info->hdr_len; 812 /* fw_asyreq must pass valid send.len */ 813 len = xfer->send.len; 814 for( i = 0 ; i < hdr_off ; i+= 4){ 815 ohcifp->mode.ld[i/4] = ntohl(fp->mode.ld[i/4]); 816 } 817 ohcifp->mode.common.spd = xfer->spd; 818 if (tcode == FWTCODE_STREAM ){ 819 hdr_len = 8; 820 ohcifp->mode.stream.len = ntohs(fp->mode.stream.len); 821 } else if (tcode == FWTCODE_PHY) { 822 hdr_len = 12; 823 ohcifp->mode.ld[1] = ntohl(fp->mode.ld[1]); 824 ohcifp->mode.ld[2] = ntohl(fp->mode.ld[2]); 825 ohcifp->mode.common.spd = 0; 826 ohcifp->mode.common.tcode = FWOHCITCODE_PHY; 827 } else { 828 ohcifp->mode.asycomm.dst = ntohs(fp->mode.hdr.dst); 829 ohcifp->mode.asycomm.srcbus = OHCI_ASYSRCBUS; 830 ohcifp->mode.asycomm.tlrt |= FWRETRY_X; 831 } 832 db = &db_tr->db[0]; 833 db->db.desc.cmd = OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len; 834 db->db.desc.status = 0; 835/* Specify bound timer of asy. responce */ 836 if(&sc->atrs == dbch){ 837 db->db.desc.count 838 = (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13); 839 } 840 841 db_tr->dbcnt = 2; 842 db = &db_tr->db[db_tr->dbcnt]; 843 if(len > hdr_off){ 844 if (xfer->mbuf == NULL) { 845 db->db.desc.addr 846 = vtophys(xfer->send.buf + xfer->send.off) + hdr_off; 847 db->db.desc.cmd 848 = OHCI_OUTPUT_MORE | ((len - hdr_off) & 0xffff); 849 db->db.desc.status = 0; 850 851 db_tr->dbcnt++; 852 } else { 853 /* XXX we assume mbuf chain is shorter than ndesc */ 854 for (m = xfer->mbuf; m != NULL; m = m->m_next) { 855 if (m->m_len == 0) 856 /* unrecoverable error could ocurre. */ 857 continue; 858 if (db_tr->dbcnt >= dbch->ndesc) { 859 device_printf(sc->fc.dev, 860 "dbch->ndesc is too small" 861 ", trancated.\n"); 862 break; 863 } 864 db->db.desc.addr 865 = vtophys(mtod(m, caddr_t)); 866 db->db.desc.cmd = OHCI_OUTPUT_MORE | m->m_len; 867 db->db.desc.status = 0; 868 db++; 869 db_tr->dbcnt++; 870 } 871 } 872 } 873 if (maxdesc < db_tr->dbcnt) { 874 maxdesc = db_tr->dbcnt; 875 if (bootverbose) 876 device_printf(sc->fc.dev, "maxdesc: %d\n", maxdesc); 877 } 878 /* last db */ 879 LAST_DB(db_tr, db); 880 db->db.desc.cmd |= OHCI_OUTPUT_LAST 881 | OHCI_INTERRUPT_ALWAYS 882 | OHCI_BRANCH_ALWAYS; 883 db->db.desc.depend = vtophys(STAILQ_NEXT(db_tr, link)->db); 884 885 if(fsegment == -1 ) 886 fsegment = db_tr->dbcnt; 887 if (dbch->pdb_tr != NULL) { 888 LAST_DB(dbch->pdb_tr, db); 889 db->db.desc.depend |= db_tr->dbcnt; 890 } 891 dbch->pdb_tr = db_tr; 892 db_tr = STAILQ_NEXT(db_tr, link); 893 if(db_tr != dbch->bottom){ 894 goto txloop; 895 } else { 896 device_printf(sc->fc.dev, "fwohci_start: lack of db_trq\n"); 897 dbch->flags |= FWOHCI_DBCH_FULL; 898 } 899kick: 900 if (firewire_debug) printf("kick\n"); 901 /* kick asy q */ 902 903 if(dbch->xferq.flag & FWXFERQ_RUNNING) { 904 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE); 905 } else { 906 if (bootverbose) 907 device_printf(sc->fc.dev, "start AT DMA status=%x\n", 908 OREAD(sc, OHCI_DMACTL(off))); 909 OWRITE(sc, OHCI_DMACMD(off), vtophys(dbch->top->db) | fsegment); 910 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 911 dbch->xferq.flag |= FWXFERQ_RUNNING; 912 } 913 914 dbch->top = db_tr; 915 splx(s); 916 return; 917} 918 919static void 920fwohci_drain_atq(struct firewire_comm *fc, struct fw_xfer *xfer) 921{ 922 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 923 fwohci_drain(&sc->fc, xfer, &(sc->atrq)); 924 return; 925} 926 927static void 928fwohci_drain_ats(struct firewire_comm *fc, struct fw_xfer *xfer) 929{ 930 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 931 fwohci_drain(&sc->fc, xfer, &(sc->atrs)); 932 return; 933} 934 935static void 936fwohci_start_atq(struct firewire_comm *fc) 937{ 938 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 939 fwohci_start( sc, &(sc->atrq)); 940 return; 941} 942 943static void 944fwohci_start_ats(struct firewire_comm *fc) 945{ 946 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 947 fwohci_start( sc, &(sc->atrs)); 948 return; 949} 950 951void 952fwohci_txd(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 953{ 954 int s, err = 0; 955 struct fwohcidb_tr *tr; 956 volatile struct fwohcidb *db; 957 struct fw_xfer *xfer; 958 u_int32_t off; 959 u_int stat; 960 int packets; 961 struct firewire_comm *fc = (struct firewire_comm *)sc; 962 if(&sc->atrq == dbch){ 963 off = OHCI_ATQOFF; 964 }else if(&sc->atrs == dbch){ 965 off = OHCI_ATSOFF; 966 }else{ 967 return; 968 } 969 s = splfw(); 970 tr = dbch->bottom; 971 packets = 0; 972 while(dbch->xferq.queued > 0){ 973 LAST_DB(tr, db); 974 if(!(db->db.desc.status & OHCI_CNTL_DMA_ACTIVE)){ 975 if (fc->status != FWBUSRESET) 976 /* maybe out of order?? */ 977 goto out; 978 } 979 if(db->db.desc.status & OHCI_CNTL_DMA_DEAD) { 980#ifdef OHCI_DEBUG 981 dump_dma(sc, ch); 982 dump_db(sc, ch); 983#endif 984/* Stop DMA */ 985 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 986 device_printf(sc->fc.dev, "force reset AT FIFO\n"); 987 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_LINKEN); 988 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS | OHCI_HCC_LINKEN); 989 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 990 } 991 stat = db->db.desc.status & FWOHCIEV_MASK; 992 switch(stat){ 993 case FWOHCIEV_ACKCOMPL: 994 case FWOHCIEV_ACKPEND: 995 err = 0; 996 break; 997 case FWOHCIEV_ACKBSA: 998 case FWOHCIEV_ACKBSB: 999 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1000 case FWOHCIEV_ACKBSX: 1001 err = EBUSY; 1002 break; 1003 case FWOHCIEV_FLUSHED: 1004 case FWOHCIEV_ACKTARD: 1005 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1006 err = EAGAIN; 1007 break; 1008 case FWOHCIEV_MISSACK: 1009 case FWOHCIEV_UNDRRUN: 1010 case FWOHCIEV_OVRRUN: 1011 case FWOHCIEV_DESCERR: 1012 case FWOHCIEV_DTRDERR: 1013 case FWOHCIEV_TIMEOUT: 1014 case FWOHCIEV_TCODERR: 1015 case FWOHCIEV_UNKNOWN: 1016 case FWOHCIEV_ACKDERR: 1017 case FWOHCIEV_ACKTERR: 1018 default: 1019 device_printf(sc->fc.dev, "txd err=%2x %s\n", 1020 stat, fwohcicode[stat]); 1021 err = EINVAL; 1022 break; 1023 } 1024 if(tr->xfer != NULL){ 1025 xfer = tr->xfer; 1026 xfer->state = FWXF_SENT; 1027 if(err == EBUSY && fc->status != FWBUSRESET){ 1028 xfer->state = FWXF_BUSY; 1029 switch(xfer->act_type){ 1030 case FWACT_XFER: 1031 xfer->resp = err; 1032 if(xfer->retry_req != NULL){ 1033 xfer->retry_req(xfer); 1034 } 1035 break; 1036 default: 1037 break; 1038 } 1039 } else if( stat != FWOHCIEV_ACKPEND){ 1040 if (stat != FWOHCIEV_ACKCOMPL) 1041 xfer->state = FWXF_SENTERR; 1042 xfer->resp = err; 1043 switch(xfer->act_type){ 1044 case FWACT_XFER: 1045 fw_xfer_done(xfer); 1046 break; 1047 default: 1048 break; 1049 } 1050 } 1051 dbch->xferq.queued --; 1052 } 1053 tr->xfer = NULL; 1054 1055 packets ++; 1056 tr = STAILQ_NEXT(tr, link); 1057 dbch->bottom = tr; 1058 } 1059out: 1060 if ((dbch->flags & FWOHCI_DBCH_FULL) && packets > 0) { 1061 printf("make free slot\n"); 1062 dbch->flags &= ~FWOHCI_DBCH_FULL; 1063 fwohci_start(sc, dbch); 1064 } 1065 splx(s); 1066} 1067 1068static void 1069fwohci_drain(struct firewire_comm *fc, struct fw_xfer *xfer, struct fwohci_dbch *dbch) 1070{ 1071 int i, s; 1072 struct fwohcidb_tr *tr; 1073 1074 if(xfer->state != FWXF_START) return; 1075 1076 s = splfw(); 1077 tr = dbch->bottom; 1078 for( i = 0 ; i <= dbch->xferq.queued ; i ++){ 1079 if(tr->xfer == xfer){ 1080 s = splfw(); 1081 tr->xfer = NULL; 1082 dbch->xferq.queued --; 1083#if 1 1084 /* XXX */ 1085 if (tr == dbch->bottom) 1086 dbch->bottom = STAILQ_NEXT(tr, link); 1087#endif 1088 if (dbch->flags & FWOHCI_DBCH_FULL) { 1089 printf("fwohci_drain: make slot\n"); 1090 dbch->flags &= ~FWOHCI_DBCH_FULL; 1091 fwohci_start((struct fwohci_softc *)fc, dbch); 1092 } 1093 1094 splx(s); 1095 break; 1096 } 1097 tr = STAILQ_NEXT(tr, link); 1098 } 1099 splx(s); 1100 return; 1101} 1102 1103static void 1104fwohci_db_free(struct fwohci_dbch *dbch) 1105{ 1106 struct fwohcidb_tr *db_tr; 1107 int idb; 1108 1109 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1110 return; 1111 1112 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){ 1113 for(db_tr = STAILQ_FIRST(&dbch->db_trq), idb = 0; 1114 idb < dbch->ndb; 1115 db_tr = STAILQ_NEXT(db_tr, link), idb++){ 1116 if (db_tr->buf != NULL) { 1117 free(db_tr->buf, M_DEVBUF); 1118 db_tr->buf = NULL; 1119 } 1120 } 1121 } 1122 dbch->ndb = 0; 1123 db_tr = STAILQ_FIRST(&dbch->db_trq); 1124 contigfree((void *)(uintptr_t)(volatile void *)db_tr->db, 1125 sizeof(struct fwohcidb) * dbch->ndesc * dbch->ndb, M_DEVBUF); 1126 free(db_tr, M_DEVBUF); 1127 STAILQ_INIT(&dbch->db_trq); 1128 dbch->flags &= ~FWOHCI_DBCH_INIT; 1129} 1130 1131static void 1132fwohci_db_init(struct fwohci_dbch *dbch) 1133{ 1134 int idb; 1135 struct fwohcidb *db; 1136 struct fwohcidb_tr *db_tr; 1137 1138 1139 if ((dbch->flags & FWOHCI_DBCH_INIT) != 0) 1140 goto out; 1141 1142 /* allocate DB entries and attach one to each DMA channels */ 1143 /* DB entry must start at 16 bytes bounary. */ 1144 STAILQ_INIT(&dbch->db_trq); 1145 db_tr = (struct fwohcidb_tr *) 1146 malloc(sizeof(struct fwohcidb_tr) * dbch->ndb, 1147 M_DEVBUF, M_DONTWAIT | M_ZERO); 1148 if(db_tr == NULL){ 1149 printf("fwohci_db_init: malloc failed\n"); 1150 return; 1151 } 1152 db = (struct fwohcidb *) 1153 contigmalloc(sizeof (struct fwohcidb) * dbch->ndesc * dbch->ndb, 1154 M_DEVBUF, M_DONTWAIT, 0x10000, 0xffffffff, PAGE_SIZE, 0ul); 1155 if(db == NULL){ 1156 printf("fwohci_db_init: contigmalloc failed\n"); 1157 free(db_tr, M_DEVBUF); 1158 return; 1159 } 1160 bzero(db, sizeof (struct fwohcidb) * dbch->ndesc * dbch->ndb); 1161 /* Attach DB to DMA ch. */ 1162 for(idb = 0 ; idb < dbch->ndb ; idb++){ 1163 db_tr->dbcnt = 0; 1164 db_tr->db = &db[idb * dbch->ndesc]; 1165 STAILQ_INSERT_TAIL(&dbch->db_trq, db_tr, link); 1166 if (!(dbch->xferq.flag & FWXFERQ_PACKET) && 1167 dbch->xferq.bnpacket != 0) { 1168 /* XXX what those for? */ 1169 if (idb % dbch->xferq.bnpacket == 0) 1170 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1171 ].start = (caddr_t)db_tr; 1172 if ((idb + 1) % dbch->xferq.bnpacket == 0) 1173 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1174 ].end = (caddr_t)db_tr; 1175 } 1176 db_tr++; 1177 } 1178 STAILQ_LAST(&dbch->db_trq, fwohcidb_tr,link)->link.stqe_next 1179 = STAILQ_FIRST(&dbch->db_trq); 1180out: 1181 dbch->frag.buf = NULL; 1182 dbch->frag.len = 0; 1183 dbch->frag.plen = 0; 1184 dbch->xferq.queued = 0; 1185 dbch->pdb_tr = NULL; 1186 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1187 dbch->bottom = dbch->top; 1188 dbch->flags = FWOHCI_DBCH_INIT; 1189} 1190 1191static int 1192fwohci_itx_disable(struct firewire_comm *fc, int dmach) 1193{ 1194 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1195 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1196 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1197 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1198 fwohci_db_free(&sc->it[dmach]); 1199 sc->it[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1200 return 0; 1201} 1202 1203static int 1204fwohci_irx_disable(struct firewire_comm *fc, int dmach) 1205{ 1206 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1207 1208 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1209 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1210 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1211 if(sc->ir[dmach].dummy != NULL){ 1212 free(sc->ir[dmach].dummy, M_DEVBUF); 1213 } 1214 sc->ir[dmach].dummy = NULL; 1215 fwohci_db_free(&sc->ir[dmach]); 1216 sc->ir[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1217 return 0; 1218} 1219 1220static void 1221fwohci_irx_post (struct firewire_comm *fc , u_int32_t *qld) 1222{ 1223 qld[0] = ntohl(qld[0]); 1224 return; 1225} 1226 1227static int 1228fwohci_irxpp_enable(struct firewire_comm *fc, int dmach) 1229{ 1230 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1231 int err = 0; 1232 unsigned short tag, ich; 1233 1234 tag = (sc->ir[dmach].xferq.flag >> 6) & 3; 1235 ich = sc->ir[dmach].xferq.flag & 0x3f; 1236 1237#if 0 1238 if(STAILQ_FIRST(&fc->ir[dmach]->q) != NULL){ 1239 wakeup(fc->ir[dmach]); 1240 return err; 1241 } 1242#endif 1243 1244 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich); 1245 if(!(sc->ir[dmach].xferq.flag & FWXFERQ_RUNNING)){ 1246 sc->ir[dmach].xferq.queued = 0; 1247 sc->ir[dmach].ndb = NDB; 1248 sc->ir[dmach].xferq.psize = FWPMAX_S400; 1249 sc->ir[dmach].ndesc = 1; 1250 fwohci_db_init(&sc->ir[dmach]); 1251 err = fwohci_rx_enable(sc, &sc->ir[dmach]); 1252 } 1253 if(err){ 1254 device_printf(sc->fc.dev, "err in IRX setting\n"); 1255 return err; 1256 } 1257 if(!(OREAD(sc, OHCI_IRCTL(dmach)) & OHCI_CNTL_DMA_ACTIVE)){ 1258 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1259 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1260 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1261 OWRITE(sc, OHCI_IR_MASK, 1 << dmach); 1262 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf8000000); 1263 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR); 1264 OWRITE(sc, OHCI_IRCMD(dmach), 1265 vtophys(sc->ir[dmach].top->db) | 1); 1266 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN); 1267 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR); 1268 } 1269 return err; 1270} 1271 1272static int 1273fwohci_tx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1274{ 1275 int err = 0; 1276 int idb, z, i, dmach = 0; 1277 u_int32_t off = NULL; 1278 struct fwohcidb_tr *db_tr; 1279 1280 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){ 1281 err = EINVAL; 1282 return err; 1283 } 1284 z = dbch->ndesc; 1285 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1286 if( &sc->it[dmach] == dbch){ 1287 off = OHCI_ITOFF(dmach); 1288 break; 1289 } 1290 } 1291 if(off == NULL){ 1292 err = EINVAL; 1293 return err; 1294 } 1295 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1296 return err; 1297 dbch->xferq.flag |= FWXFERQ_RUNNING; 1298 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1299 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1300 } 1301 db_tr = dbch->top; 1302 for( idb = 0 ; idb < dbch->ndb ; idb ++){ 1303 fwohci_add_tx_buf(db_tr, 1304 dbch->xferq.psize, dbch->xferq.flag, 1305 dbch->xferq.buf + dbch->xferq.psize * idb); 1306 if(STAILQ_NEXT(db_tr, link) == NULL){ 1307 break; 1308 } 1309 db_tr->db[0].db.desc.depend 1310 = vtophys(STAILQ_NEXT(db_tr, link)->db) | z; 1311 db_tr->db[db_tr->dbcnt - 1].db.desc.depend 1312 = vtophys(STAILQ_NEXT(db_tr, link)->db) | z; 1313 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1314 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1315 db_tr->db[db_tr->dbcnt - 1].db.desc.cmd 1316 |= OHCI_INTERRUPT_ALWAYS; 1317 db_tr->db[0].db.desc.depend &= ~0xf; 1318 db_tr->db[db_tr->dbcnt - 1].db.desc.depend &= 1319 ~0xf; 1320 } 1321 } 1322 db_tr = STAILQ_NEXT(db_tr, link); 1323 } 1324 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend &= 0xfffffff0; 1325 return err; 1326} 1327 1328static int 1329fwohci_rx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1330{ 1331 int err = 0; 1332 int idb, z, i, dmach = 0; 1333 u_int32_t off = NULL; 1334 struct fwohcidb_tr *db_tr; 1335 1336 z = dbch->ndesc; 1337 if(&sc->arrq == dbch){ 1338 off = OHCI_ARQOFF; 1339 }else if(&sc->arrs == dbch){ 1340 off = OHCI_ARSOFF; 1341 }else{ 1342 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1343 if( &sc->ir[dmach] == dbch){ 1344 off = OHCI_IROFF(dmach); 1345 break; 1346 } 1347 } 1348 } 1349 if(off == NULL){ 1350 err = EINVAL; 1351 return err; 1352 } 1353 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1354 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1355 return err; 1356 }else{ 1357 if(dbch->xferq.flag & FWXFERQ_RUNNING){ 1358 err = EBUSY; 1359 return err; 1360 } 1361 } 1362 dbch->xferq.flag |= FWXFERQ_RUNNING; 1363 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1364 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1365 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1366 } 1367 db_tr = dbch->top; 1368 for( idb = 0 ; idb < dbch->ndb ; idb ++){ 1369 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){ 1370 fwohci_add_rx_buf(db_tr, 1371 dbch->xferq.psize, dbch->xferq.flag, 0, NULL); 1372 }else{ 1373 fwohci_add_rx_buf(db_tr, 1374 dbch->xferq.psize, dbch->xferq.flag, 1375 dbch->xferq.buf + dbch->xferq.psize * idb, 1376 dbch->dummy + sizeof(u_int32_t) * idb); 1377 } 1378 if(STAILQ_NEXT(db_tr, link) == NULL){ 1379 break; 1380 } 1381 db_tr->db[db_tr->dbcnt - 1].db.desc.depend 1382 = vtophys(STAILQ_NEXT(db_tr, link)->db) | z; 1383 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1384 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1385 db_tr->db[db_tr->dbcnt - 1].db.desc.cmd 1386 |= OHCI_INTERRUPT_ALWAYS; 1387 db_tr->db[db_tr->dbcnt - 1].db.desc.depend &= 1388 ~0xf; 1389 } 1390 } 1391 db_tr = STAILQ_NEXT(db_tr, link); 1392 } 1393 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend &= 0xfffffff0; 1394 dbch->buf_offset = 0; 1395 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1396 return err; 1397 }else{ 1398 OWRITE(sc, OHCI_DMACMD(off), vtophys(dbch->top->db) | z); 1399 } 1400 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 1401 return err; 1402} 1403 1404static int 1405fwohci_itxbuf_enable(struct firewire_comm *fc, int dmach) 1406{ 1407 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1408 int err = 0; 1409 unsigned short tag, ich; 1410 struct fwohci_dbch *dbch; 1411 struct fw_pkt *fp; 1412 struct fwohcidb_tr *db_tr; 1413 1414 tag = (sc->it[dmach].xferq.flag >> 6) & 3; 1415 ich = sc->it[dmach].xferq.flag & 0x3f; 1416 dbch = &sc->it[dmach]; 1417 if(dbch->ndb == 0){ 1418 dbch->xferq.queued = 0; 1419 dbch->ndb = dbch->xferq.bnpacket * dbch->xferq.bnchunk; 1420 dbch->ndesc = 3; 1421 fwohci_db_init(dbch); 1422 err = fwohci_tx_enable(sc, dbch); 1423 } 1424 if(err) 1425 return err; 1426 if(OREAD(sc, OHCI_ITCTL(dmach)) & OHCI_CNTL_DMA_ACTIVE){ 1427 if(dbch->xferq.stdma2 != NULL){ 1428 fwohci_txbufdb(sc, dmach, dbch->xferq.stdma2); 1429 ((struct fwohcidb_tr *) 1430 (dbch->xferq.stdma->end))->db[dbch->ndesc - 1].db.desc.cmd 1431 |= OHCI_BRANCH_ALWAYS; 1432 ((struct fwohcidb_tr *) 1433 (dbch->xferq.stdma->end))->db[dbch->ndesc - 1].db.desc.depend = 1434 vtophys(((struct fwohcidb_tr *)(dbch->xferq.stdma2->start))->db) | dbch->ndesc; 1435 ((struct fwohcidb_tr *)(dbch->xferq.stdma->end))->db[0].db.desc.depend = 1436 vtophys(((struct fwohcidb_tr *)(dbch->xferq.stdma2->start))->db) | dbch->ndesc; 1437 ((struct fwohcidb_tr *)(dbch->xferq.stdma2->end))->db[dbch->ndesc - 1].db.desc.depend &= ~0xf; 1438 ((struct fwohcidb_tr *)(dbch->xferq.stdma2->end))->db[0].db.desc.depend &= ~0xf; 1439 } 1440 }else if(!(OREAD(sc, OHCI_ITCTL(dmach)) & OHCI_CNTL_DMA_ACTIVE)){ 1441 fw_tbuf_update(&sc->fc, dmach, 0); 1442 if(dbch->xferq.stdma == NULL){ 1443 return err; 1444 } 1445 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1446 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1447 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1448 OWRITE(sc, OHCI_IT_MASK, 1 << dmach); 1449 OWRITE(sc, OHCI_ITCTLCLR(dmach), 0xf0000000); 1450 fwohci_txbufdb(sc, dmach, dbch->xferq.stdma); 1451 if(dbch->xferq.stdma2 != NULL){ 1452 fwohci_txbufdb(sc, dmach, dbch->xferq.stdma2); 1453 ((struct fwohcidb_tr *) 1454 (dbch->xferq.stdma->end))->db[dbch->ndesc - 1].db.desc.cmd 1455 |= OHCI_BRANCH_ALWAYS; 1456 ((struct fwohcidb_tr *)(dbch->xferq.stdma->end))->db[dbch->ndesc - 1].db.desc.depend = 1457 vtophys(((struct fwohcidb_tr *)(dbch->xferq.stdma2->start))->db) | dbch->ndesc; 1458 ((struct fwohcidb_tr *)(dbch->xferq.stdma->end))->db[0].db.desc.depend = 1459 vtophys(((struct fwohcidb_tr *)(dbch->xferq.stdma2->start))->db) | dbch->ndesc; 1460 ((struct fwohcidb_tr *)(dbch->xferq.stdma2->end))->db[dbch->ndesc - 1].db.desc.depend &= ~0xf; 1461 ((struct fwohcidb_tr *) (dbch->xferq.stdma2->end))->db[0].db.desc.depend &= ~0xf; 1462 }else{ 1463 ((struct fwohcidb_tr *) (dbch->xferq.stdma->end))->db[dbch->ndesc - 1].db.desc.depend &= ~0xf; 1464 ((struct fwohcidb_tr *) (dbch->xferq.stdma->end))->db[0].db.desc.depend &= ~0xf; 1465 } 1466 OWRITE(sc, OHCI_ITCMD(dmach), 1467 vtophys(((struct fwohcidb_tr *) 1468 (dbch->xferq.stdma->start))->db) | dbch->ndesc); 1469 if(dbch->xferq.flag & FWXFERQ_DV){ 1470 db_tr = (struct fwohcidb_tr *)dbch->xferq.stdma->start; 1471 fp = (struct fw_pkt *)db_tr->buf; 1472 fp->mode.ld[2] = htonl(0x80000000 + 1473 ((fc->cyctimer(fc) + 0x3000) & 0xf000)); 1474 } 1475 1476 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_RUN); 1477 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IT); 1478 } 1479 return err; 1480} 1481 1482static int 1483fwohci_irxbuf_enable(struct firewire_comm *fc, int dmach) 1484{ 1485 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1486 int err = 0; 1487 unsigned short tag, ich; 1488 tag = (sc->ir[dmach].xferq.flag >> 6) & 3; 1489 ich = sc->ir[dmach].xferq.flag & 0x3f; 1490 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich); 1491 1492 if(!(sc->ir[dmach].xferq.flag & FWXFERQ_RUNNING)){ 1493 sc->ir[dmach].xferq.queued = 0; 1494 sc->ir[dmach].ndb = sc->ir[dmach].xferq.bnpacket * 1495 sc->ir[dmach].xferq.bnchunk; 1496 sc->ir[dmach].dummy = 1497 malloc(sizeof(u_int32_t) * sc->ir[dmach].ndb, 1498 M_DEVBUF, M_DONTWAIT); 1499 if(sc->ir[dmach].dummy == NULL){ 1500 err = ENOMEM; 1501 return err; 1502 } 1503 sc->ir[dmach].ndesc = 2; 1504 fwohci_db_init(&sc->ir[dmach]); 1505 err = fwohci_rx_enable(sc, &sc->ir[dmach]); 1506 } 1507 if(err) 1508 return err; 1509 1510 if(OREAD(sc, OHCI_IRCTL(dmach)) & OHCI_CNTL_DMA_ACTIVE){ 1511 if(sc->ir[dmach].xferq.stdma2 != NULL){ 1512 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[sc->ir[dmach].ndesc - 1].db.desc.depend = 1513 vtophys(((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->start))->db) | sc->ir[dmach].ndesc; 1514 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[0].db.desc.depend = 1515 vtophys(((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->start))->db); 1516 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->end))->db[sc->ir[dmach].ndesc - 1].db.desc.depend &= ~0xf; 1517 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->end))->db[0].db.desc.depend &= ~0xf; 1518 } 1519 }else if(!(OREAD(sc, OHCI_IRCTL(dmach)) & OHCI_CNTL_DMA_ACTIVE) 1520 && !(sc->ir[dmach].xferq.flag & FWXFERQ_PACKET)){ 1521 fw_rbuf_update(&sc->fc, dmach, 0); 1522 1523 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1524 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1525 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1526 OWRITE(sc, OHCI_IR_MASK, 1 << dmach); 1527 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf0000000); 1528 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR); 1529 if(sc->ir[dmach].xferq.stdma2 != NULL){ 1530 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[sc->ir[dmach].ndesc - 1].db.desc.depend = 1531 vtophys(((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->start))->db) | sc->ir[dmach].ndesc; 1532 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[0].db.desc.depend = 1533 vtophys(((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->start))->db); 1534 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma2->end))->db[sc->ir[dmach].ndesc - 1].db.desc.depend &= ~0xf; 1535 }else{ 1536 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[sc->ir[dmach].ndesc - 1].db.desc.depend &= ~0xf; 1537 ((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->end))->db[0].db.desc.depend &= ~0xf; 1538 } 1539 OWRITE(sc, OHCI_IRCMD(dmach), 1540 vtophys(((struct fwohcidb_tr *)(sc->ir[dmach].xferq.stdma->start))->db) | sc->ir[dmach].ndesc); 1541 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN); 1542 } 1543 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR); 1544 return err; 1545} 1546 1547static int 1548fwohci_irx_enable(struct firewire_comm *fc, int dmach) 1549{ 1550 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1551 int err = 0; 1552 1553 if(sc->ir[dmach].xferq.flag & FWXFERQ_PACKET){ 1554 err = fwohci_irxpp_enable(fc, dmach); 1555 return err; 1556 }else{ 1557 err = fwohci_irxbuf_enable(fc, dmach); 1558 return err; 1559 } 1560} 1561 1562int 1563fwohci_shutdown(struct fwohci_softc *sc, device_t dev) 1564{ 1565 u_int i; 1566 1567/* Now stopping all DMA channel */ 1568 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 1569 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 1570 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1571 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1572 1573 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 1574 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 1575 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 1576 } 1577 1578/* FLUSH FIFO and reset Transmitter/Reciever */ 1579 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 1580 1581/* Stop interrupt */ 1582 OWRITE(sc, FWOHCI_INTMASKCLR, 1583 OHCI_INT_EN | OHCI_INT_ERR | OHCI_INT_PHY_SID 1584 | OHCI_INT_PHY_INT 1585 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 1586 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 1587 | OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS 1588 | OHCI_INT_PHY_BUS_R); 1589/* XXX Link down? Bus reset? */ 1590 return 0; 1591} 1592 1593int 1594fwohci_resume(struct fwohci_softc *sc, device_t dev) 1595{ 1596 int i; 1597 1598 fwohci_reset(sc, dev); 1599 /* XXX resume isochronus receive automatically. (how about TX?) */ 1600 for(i = 0; i < sc->fc.nisodma; i ++) { 1601 if((sc->ir[i].xferq.flag & FWXFERQ_RUNNING) != 0) { 1602 device_printf(sc->fc.dev, 1603 "resume iso receive ch: %d\n", i); 1604 sc->ir[i].xferq.flag &= ~FWXFERQ_RUNNING; 1605 sc->fc.irx_enable(&sc->fc, i); 1606 } 1607 } 1608 1609 bus_generic_resume(dev); 1610 sc->fc.ibr(&sc->fc); 1611 return 0; 1612} 1613 1614#define ACK_ALL 1615static void 1616fwohci_intr_body(struct fwohci_softc *sc, u_int32_t stat, int count) 1617{ 1618 u_int32_t irstat, itstat; 1619 u_int i; 1620 struct firewire_comm *fc = (struct firewire_comm *)sc; 1621 1622#ifdef OHCI_DEBUG 1623 if(stat & OREAD(sc, FWOHCI_INTMASK)) 1624 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", 1625 stat & OHCI_INT_EN ? "DMA_EN ":"", 1626 stat & OHCI_INT_PHY_REG ? "PHY_REG ":"", 1627 stat & OHCI_INT_CYC_LONG ? "CYC_LONG ":"", 1628 stat & OHCI_INT_ERR ? "INT_ERR ":"", 1629 stat & OHCI_INT_CYC_ERR ? "CYC_ERR ":"", 1630 stat & OHCI_INT_CYC_LOST ? "CYC_LOST ":"", 1631 stat & OHCI_INT_CYC_64SECOND ? "CYC_64SECOND ":"", 1632 stat & OHCI_INT_CYC_START ? "CYC_START ":"", 1633 stat & OHCI_INT_PHY_INT ? "PHY_INT ":"", 1634 stat & OHCI_INT_PHY_BUS_R ? "BUS_RESET ":"", 1635 stat & OHCI_INT_PHY_SID ? "SID ":"", 1636 stat & OHCI_INT_LR_ERR ? "DMA_LR_ERR ":"", 1637 stat & OHCI_INT_PW_ERR ? "DMA_PW_ERR ":"", 1638 stat & OHCI_INT_DMA_IR ? "DMA_IR ":"", 1639 stat & OHCI_INT_DMA_IT ? "DMA_IT " :"", 1640 stat & OHCI_INT_DMA_PRRS ? "DMA_PRRS " :"", 1641 stat & OHCI_INT_DMA_PRRQ ? "DMA_PRRQ " :"", 1642 stat & OHCI_INT_DMA_ARRS ? "DMA_ARRS " :"", 1643 stat & OHCI_INT_DMA_ARRQ ? "DMA_ARRQ " :"", 1644 stat & OHCI_INT_DMA_ATRS ? "DMA_ATRS " :"", 1645 stat & OHCI_INT_DMA_ATRQ ? "DMA_ATRQ " :"", 1646 stat, OREAD(sc, FWOHCI_INTMASK) 1647 ); 1648#endif 1649/* Bus reset */ 1650 if(stat & OHCI_INT_PHY_BUS_R ){ 1651 device_printf(fc->dev, "BUS reset\n"); 1652 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST); 1653 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCSRC); 1654 1655 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1656 sc->atrq.xferq.flag &= ~FWXFERQ_RUNNING; 1657 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1658 sc->atrs.xferq.flag &= ~FWXFERQ_RUNNING; 1659 1660#if 0 1661 for( i = 0 ; i < fc->nisodma ; i ++ ){ 1662 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 1663 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 1664 } 1665 1666#endif 1667 fw_busreset(fc); 1668 1669 /* XXX need to wait DMA to stop */ 1670#ifndef ACK_ALL 1671 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_BUS_R); 1672#endif 1673#if 1 1674 /* pending all pre-bus_reset packets */ 1675 fwohci_txd(sc, &sc->atrq); 1676 fwohci_txd(sc, &sc->atrs); 1677 fwohci_arcv(sc, &sc->arrs, -1); 1678 fwohci_arcv(sc, &sc->arrq, -1); 1679#endif 1680 1681 1682 OWRITE(sc, OHCI_AREQHI, 1 << 31); 1683 /* XXX insecure ?? */ 1684 OWRITE(sc, OHCI_PREQHI, 0x7fffffff); 1685 OWRITE(sc, OHCI_PREQLO, 0xffffffff); 1686 OWRITE(sc, OHCI_PREQUPPER, 0x10000); 1687 1688 } 1689 if((stat & OHCI_INT_DMA_IR )){ 1690#ifndef ACK_ALL 1691 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IR); 1692#endif 1693 irstat = OREAD(sc, OHCI_IR_STAT); 1694 OWRITE(sc, OHCI_IR_STATCLR, ~0); 1695 for(i = 0; i < fc->nisodma ; i++){ 1696 if((irstat & (1 << i)) != 0){ 1697 if(sc->ir[i].xferq.flag & FWXFERQ_PACKET){ 1698 fwohci_ircv(sc, &sc->ir[i], count); 1699 }else{ 1700 fwohci_rbuf_update(sc, i); 1701 } 1702 } 1703 } 1704 } 1705 if((stat & OHCI_INT_DMA_IT )){ 1706#ifndef ACK_ALL 1707 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IT); 1708#endif 1709 itstat = OREAD(sc, OHCI_IT_STAT); 1710 OWRITE(sc, OHCI_IT_STATCLR, ~0); 1711 for(i = 0; i < fc->nisodma ; i++){ 1712 if((itstat & (1 << i)) != 0){ 1713 fwohci_tbuf_update(sc, i); 1714 } 1715 } 1716 } 1717 if((stat & OHCI_INT_DMA_PRRS )){ 1718#ifndef ACK_ALL 1719 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRS); 1720#endif 1721#if 0 1722 dump_dma(sc, ARRS_CH); 1723 dump_db(sc, ARRS_CH); 1724#endif 1725 fwohci_arcv(sc, &sc->arrs, count); 1726 } 1727 if((stat & OHCI_INT_DMA_PRRQ )){ 1728#ifndef ACK_ALL 1729 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRQ); 1730#endif 1731#if 0 1732 dump_dma(sc, ARRQ_CH); 1733 dump_db(sc, ARRQ_CH); 1734#endif 1735 fwohci_arcv(sc, &sc->arrq, count); 1736 } 1737 if(stat & OHCI_INT_PHY_SID){ 1738 caddr_t buf; 1739 int plen; 1740 1741#ifndef ACK_ALL 1742 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_SID); 1743#endif 1744/* 1745** Checking whether the node is root or not. If root, turn on 1746** cycle master. 1747*/ 1748 device_printf(fc->dev, "node_id = 0x%08x, ", OREAD(sc, FWOHCI_NODEID)); 1749 if(!(OREAD(sc, FWOHCI_NODEID) & OHCI_NODE_VALID)){ 1750 printf("Bus reset failure\n"); 1751 goto sidout; 1752 } 1753 if( OREAD(sc, FWOHCI_NODEID) & OHCI_NODE_ROOT ){ 1754 printf("CYCLEMASTER mode\n"); 1755 OWRITE(sc, OHCI_LNKCTL, 1756 OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER); 1757 }else{ 1758 printf("non CYCLEMASTER mode\n"); 1759 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCMTR); 1760 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCTIMER); 1761 } 1762 fc->nodeid = OREAD(sc, FWOHCI_NODEID) & 0x3f; 1763 1764 plen = OREAD(sc, OHCI_SID_CNT) & OHCI_SID_CNT_MASK; 1765 plen -= 4; /* chop control info */ 1766 buf = malloc( FWPMAX_S400, M_DEVBUF, M_NOWAIT); 1767 if(buf == NULL) goto sidout; 1768 bcopy((void *)(uintptr_t)(volatile void *)(fc->sid_buf + 1), 1769 buf, plen); 1770 fw_sidrcv(fc, buf, plen, 0); 1771 } 1772sidout: 1773 if((stat & OHCI_INT_DMA_ATRQ )){ 1774#ifndef ACK_ALL 1775 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRQ); 1776#endif 1777 fwohci_txd(sc, &(sc->atrq)); 1778 } 1779 if((stat & OHCI_INT_DMA_ATRS )){ 1780#ifndef ACK_ALL 1781 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRS); 1782#endif 1783 fwohci_txd(sc, &(sc->atrs)); 1784 } 1785 if((stat & OHCI_INT_PW_ERR )){ 1786#ifndef ACK_ALL 1787 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PW_ERR); 1788#endif 1789 device_printf(fc->dev, "posted write error\n"); 1790 } 1791 if((stat & OHCI_INT_ERR )){ 1792#ifndef ACK_ALL 1793 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_ERR); 1794#endif 1795 device_printf(fc->dev, "unrecoverable error\n"); 1796 } 1797 if((stat & OHCI_INT_PHY_INT)) { 1798#ifndef ACK_ALL 1799 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_INT); 1800#endif 1801 device_printf(fc->dev, "phy int\n"); 1802 } 1803 1804 return; 1805} 1806 1807void 1808fwohci_intr(void *arg) 1809{ 1810 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 1811 u_int32_t stat; 1812 1813 if (!(sc->intmask & OHCI_INT_EN)) { 1814 /* polling mode */ 1815 return; 1816 } 1817 1818 while ((stat = OREAD(sc, FWOHCI_INTSTAT)) != 0) { 1819 if (stat == 0xffffffff) { 1820 device_printf(sc->fc.dev, 1821 "device physically ejected?\n"); 1822 return; 1823 } 1824#ifdef ACK_ALL 1825 OWRITE(sc, FWOHCI_INTSTATCLR, stat); 1826#endif 1827 fwohci_intr_body(sc, stat, -1); 1828 } 1829} 1830 1831static void 1832fwohci_poll(struct firewire_comm *fc, int quick, int count) 1833{ 1834 int s; 1835 u_int32_t stat; 1836 struct fwohci_softc *sc; 1837 1838 1839 sc = (struct fwohci_softc *)fc; 1840 stat = OHCI_INT_DMA_IR | OHCI_INT_DMA_IT | 1841 OHCI_INT_DMA_PRRS | OHCI_INT_DMA_PRRQ | 1842 OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS; 1843#if 0 1844 if (!quick) { 1845#else 1846 if (1) { 1847#endif 1848 stat = OREAD(sc, FWOHCI_INTSTAT); 1849 if (stat == 0) 1850 return; 1851 if (stat == 0xffffffff) { 1852 device_printf(sc->fc.dev, 1853 "device physically ejected?\n"); 1854 return; 1855 } 1856#ifdef ACK_ALL 1857 OWRITE(sc, FWOHCI_INTSTATCLR, stat); 1858#endif 1859 } 1860 s = splfw(); 1861 fwohci_intr_body(sc, stat, count); 1862 splx(s); 1863} 1864 1865static void 1866fwohci_set_intr(struct firewire_comm *fc, int enable) 1867{ 1868 struct fwohci_softc *sc; 1869 1870 sc = (struct fwohci_softc *)fc; 1871 if (bootverbose) 1872 device_printf(sc->fc.dev, "fwohci_set_intr: %d\n", enable); 1873 if (enable) { 1874 sc->intmask |= OHCI_INT_EN; 1875 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_EN); 1876 } else { 1877 sc->intmask &= ~OHCI_INT_EN; 1878 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_EN); 1879 } 1880} 1881 1882static void 1883fwohci_tbuf_update(struct fwohci_softc *sc, int dmach) 1884{ 1885 int stat; 1886 struct firewire_comm *fc = &sc->fc; 1887 struct fw_pkt *fp; 1888 struct fwohci_dbch *dbch; 1889 struct fwohcidb_tr *db_tr; 1890 1891 dbch = &sc->it[dmach]; 1892 if((dbch->xferq.flag & FWXFERQ_DV) && (dbch->xferq.stdma2 != NULL)){ 1893 db_tr = (struct fwohcidb_tr *)dbch->xferq.stdma2->start; 1894/* 1895 * Overwrite highest significant 4 bits timestamp information 1896 */ 1897 fp = (struct fw_pkt *)db_tr->buf; 1898 fp->mode.ld[2] |= htonl(0x80000000 | 1899 ((fc->cyctimer(fc) + 0x4000) & 0xf000)); 1900 } 1901 stat = OREAD(sc, OHCI_ITCTL(dmach)) & 0x1f; 1902 switch(stat){ 1903 case FWOHCIEV_ACKCOMPL: 1904 fw_tbuf_update(fc, dmach, 1); 1905 break; 1906 default: 1907 fw_tbuf_update(fc, dmach, 0); 1908 break; 1909 } 1910 fwohci_itxbuf_enable(&sc->fc, dmach); 1911} 1912 1913static void 1914fwohci_rbuf_update(struct fwohci_softc *sc, int dmach) 1915{ 1916 int stat; 1917 stat = OREAD(sc, OHCI_IRCTL(dmach)) & 0x1f; 1918 switch(stat){ 1919 case FWOHCIEV_ACKCOMPL: 1920 fw_rbuf_update(&sc->fc, dmach, 1); 1921 wakeup(sc->fc.ir[dmach]); 1922 fwohci_irx_enable(&sc->fc, dmach); 1923 break; 1924 default: 1925 break; 1926 } 1927} 1928 1929void 1930dump_dma(struct fwohci_softc *sc, u_int32_t ch) 1931{ 1932 u_int32_t off, cntl, stat, cmd, match; 1933 1934 if(ch == 0){ 1935 off = OHCI_ATQOFF; 1936 }else if(ch == 1){ 1937 off = OHCI_ATSOFF; 1938 }else if(ch == 2){ 1939 off = OHCI_ARQOFF; 1940 }else if(ch == 3){ 1941 off = OHCI_ARSOFF; 1942 }else if(ch < IRX_CH){ 1943 off = OHCI_ITCTL(ch - ITX_CH); 1944 }else{ 1945 off = OHCI_IRCTL(ch - IRX_CH); 1946 } 1947 cntl = stat = OREAD(sc, off); 1948 cmd = OREAD(sc, off + 0xc); 1949 match = OREAD(sc, off + 0x10); 1950 1951 device_printf(sc->fc.dev, "dma ch %1x:dma regs 0x%08x 0x%08x 0x%08x 0x%08x \n", 1952 ch, 1953 cntl, 1954 stat, 1955 cmd, 1956 match); 1957 stat &= 0xffff ; 1958 if(stat & 0xff00){ 1959 device_printf(sc->fc.dev, "dma %d ch:%s%s%s%s%s%s %s(%x)\n", 1960 ch, 1961 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 1962 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 1963 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 1964 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 1965 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 1966 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 1967 fwohcicode[stat & 0x1f], 1968 stat & 0x1f 1969 ); 1970 }else{ 1971 device_printf(sc->fc.dev, "dma %d ch: Nostat\n", ch); 1972 } 1973} 1974 1975void 1976dump_db(struct fwohci_softc *sc, u_int32_t ch) 1977{ 1978 struct fwohci_dbch *dbch; 1979 struct fwohcidb_tr *cp = NULL, *pp, *np; 1980 volatile struct fwohcidb *curr = NULL, *prev, *next = NULL; 1981 int idb, jdb; 1982 u_int32_t cmd, off; 1983 if(ch == 0){ 1984 off = OHCI_ATQOFF; 1985 dbch = &sc->atrq; 1986 }else if(ch == 1){ 1987 off = OHCI_ATSOFF; 1988 dbch = &sc->atrs; 1989 }else if(ch == 2){ 1990 off = OHCI_ARQOFF; 1991 dbch = &sc->arrq; 1992 }else if(ch == 3){ 1993 off = OHCI_ARSOFF; 1994 dbch = &sc->arrs; 1995 }else if(ch < IRX_CH){ 1996 off = OHCI_ITCTL(ch - ITX_CH); 1997 dbch = &sc->it[ch - ITX_CH]; 1998 }else { 1999 off = OHCI_IRCTL(ch - IRX_CH); 2000 dbch = &sc->ir[ch - IRX_CH]; 2001 } 2002 cmd = OREAD(sc, off + 0xc); 2003 2004 if( dbch->ndb == 0 ){ 2005 device_printf(sc->fc.dev, "No DB is attached ch=%d\n", ch); 2006 return; 2007 } 2008 pp = dbch->top; 2009 prev = pp->db; 2010 for(idb = 0 ; idb < dbch->ndb ; idb ++ ){ 2011 if(pp == NULL){ 2012 curr = NULL; 2013 goto outdb; 2014 } 2015 cp = STAILQ_NEXT(pp, link); 2016 if(cp == NULL){ 2017 curr = NULL; 2018 goto outdb; 2019 } 2020 np = STAILQ_NEXT(cp, link); 2021 if(cp == NULL) break; 2022 for(jdb = 0 ; jdb < dbch->ndesc ; jdb ++ ){ 2023 if((cmd & 0xfffffff0) 2024 == vtophys(&(cp->db[jdb]))){ 2025 curr = cp->db; 2026 if(np != NULL){ 2027 next = np->db; 2028 }else{ 2029 next = NULL; 2030 } 2031 goto outdb; 2032 } 2033 } 2034 pp = STAILQ_NEXT(pp, link); 2035 prev = pp->db; 2036 } 2037outdb: 2038 if( curr != NULL){ 2039 printf("Prev DB %d\n", ch); 2040 print_db(prev, ch, dbch->ndesc); 2041 printf("Current DB %d\n", ch); 2042 print_db(curr, ch, dbch->ndesc); 2043 printf("Next DB %d\n", ch); 2044 print_db(next, ch, dbch->ndesc); 2045 }else{ 2046 printf("dbdump err ch = %d cmd = 0x%08x\n", ch, cmd); 2047 } 2048 return; 2049} 2050 2051void 2052print_db(volatile struct fwohcidb *db, u_int32_t ch, u_int32_t max) 2053{ 2054 fwohcireg_t stat; 2055 int i, key; 2056 2057 if(db == NULL){ 2058 printf("No Descriptor is found\n"); 2059 return; 2060 } 2061 2062 printf("ch = %d\n%8s %s %s %s %s %4s %8s %8s %4s:%4s\n", 2063 ch, 2064 "Current", 2065 "OP ", 2066 "KEY", 2067 "INT", 2068 "BR ", 2069 "len", 2070 "Addr", 2071 "Depend", 2072 "Stat", 2073 "Cnt"); 2074 for( i = 0 ; i <= max ; i ++){ 2075 key = db[i].db.desc.cmd & OHCI_KEY_MASK; 2076 printf("%08tx %s %s %s %s %5d %08x %08x %04x:%04x", 2077 vtophys(&db[i]), 2078 dbcode[(db[i].db.desc.cmd >> 28) & 0xf], 2079 dbkey[(db[i].db.desc.cmd >> 24) & 0x7], 2080 dbcond[(db[i].db.desc.cmd >> 20) & 0x3], 2081 dbcond[(db[i].db.desc.cmd >> 18) & 0x3], 2082 db[i].db.desc.cmd & 0xffff, 2083 db[i].db.desc.addr, 2084 db[i].db.desc.depend, 2085 db[i].db.desc.status, 2086 db[i].db.desc.count); 2087 stat = db[i].db.desc.status; 2088 if(stat & 0xff00){ 2089 printf(" %s%s%s%s%s%s %s(%x)\n", 2090 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 2091 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 2092 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 2093 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 2094 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 2095 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 2096 fwohcicode[stat & 0x1f], 2097 stat & 0x1f 2098 ); 2099 }else{ 2100 printf(" Nostat\n"); 2101 } 2102 if(key == OHCI_KEY_ST2 ){ 2103 printf("0x%08x 0x%08x 0x%08x 0x%08x\n", 2104 db[i+1].db.immed[0], 2105 db[i+1].db.immed[1], 2106 db[i+1].db.immed[2], 2107 db[i+1].db.immed[3]); 2108 } 2109 if(key == OHCI_KEY_DEVICE){ 2110 return; 2111 } 2112 if((db[i].db.desc.cmd & OHCI_BRANCH_MASK) 2113 == OHCI_BRANCH_ALWAYS){ 2114 return; 2115 } 2116 if((db[i].db.desc.cmd & OHCI_CMD_MASK) 2117 == OHCI_OUTPUT_LAST){ 2118 return; 2119 } 2120 if((db[i].db.desc.cmd & OHCI_CMD_MASK) 2121 == OHCI_INPUT_LAST){ 2122 return; 2123 } 2124 if(key == OHCI_KEY_ST2 ){ 2125 i++; 2126 } 2127 } 2128 return; 2129} 2130 2131void 2132fwohci_ibr(struct firewire_comm *fc) 2133{ 2134 struct fwohci_softc *sc; 2135 u_int32_t fun; 2136 2137 sc = (struct fwohci_softc *)fc; 2138 2139 /* 2140 * Set root hold-off bit so that non cyclemaster capable node 2141 * shouldn't became the root node. 2142 */ 2143 fun = fwphy_rddata(sc, FW_PHY_RHB_REG); 2144 fun |= FW_PHY_RHB; 2145 fun = fwphy_wrdata(sc, FW_PHY_RHB_REG, fun); 2146#if 1 2147 fun = fwphy_rddata(sc, FW_PHY_IBR_REG); 2148 fun |= FW_PHY_IBR; 2149 fun = fwphy_wrdata(sc, FW_PHY_IBR_REG, fun); 2150#else 2151 fun = fwphy_rddata(sc, FW_PHY_ISBR_REG); 2152 fun |= FW_PHY_ISBR; 2153 fun = fwphy_wrdata(sc, FW_PHY_ISBR_REG, fun); 2154#endif 2155} 2156 2157void 2158fwohci_txbufdb(struct fwohci_softc *sc, int dmach, struct fw_bulkxfer *bulkxfer) 2159{ 2160 struct fwohcidb_tr *db_tr, *fdb_tr; 2161 struct fwohci_dbch *dbch; 2162 struct fw_pkt *fp; 2163 volatile struct fwohci_txpkthdr *ohcifp; 2164 unsigned short chtag; 2165 int idb; 2166 2167 dbch = &sc->it[dmach]; 2168 chtag = sc->it[dmach].xferq.flag & 0xff; 2169 2170 db_tr = (struct fwohcidb_tr *)(bulkxfer->start); 2171 fdb_tr = (struct fwohcidb_tr *)(bulkxfer->end); 2172/* 2173device_printf(sc->fc.dev, "DB %08x %08x %08x\n", bulkxfer, vtophys(db_tr->db), vtophys(fdb_tr->db)); 2174*/ 2175 if(bulkxfer->flag != 0){ 2176 return; 2177 } 2178 bulkxfer->flag = 1; 2179 for( idb = 0 ; idb < bulkxfer->npacket ; idb ++){ 2180 db_tr->db[0].db.desc.cmd 2181 = OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8; 2182 fp = (struct fw_pkt *)db_tr->buf; 2183 ohcifp = (volatile struct fwohci_txpkthdr *) 2184 db_tr->db[1].db.immed; 2185 ohcifp->mode.ld[0] = ntohl(fp->mode.ld[0]); 2186 ohcifp->mode.stream.len = ntohs(fp->mode.stream.len); 2187 ohcifp->mode.stream.chtag = chtag; 2188 ohcifp->mode.stream.tcode = 0xa; 2189 ohcifp->mode.stream.spd = 4; 2190 ohcifp->mode.ld[2] = ntohl(fp->mode.ld[1]); 2191 ohcifp->mode.ld[3] = ntohl(fp->mode.ld[2]); 2192 2193 db_tr->db[2].db.desc.cmd 2194 = OHCI_OUTPUT_LAST 2195 | OHCI_UPDATE 2196 | OHCI_BRANCH_ALWAYS 2197 | ((ntohs(fp->mode.stream.len) ) & 0xffff); 2198 db_tr->db[2].db.desc.status = 0; 2199 db_tr->db[2].db.desc.count = 0; 2200 if(dbch->xferq.flag & FWXFERQ_DV){ 2201 db_tr->db[0].db.desc.depend 2202 = vtophys(STAILQ_NEXT(db_tr, link)->db) | dbch->ndesc; 2203 db_tr->db[dbch->ndesc - 1].db.desc.depend 2204 = vtophys(STAILQ_NEXT(db_tr, link)->db) | dbch->ndesc; 2205 }else{ 2206 db_tr->db[0].db.desc.depend 2207 = vtophys(STAILQ_NEXT(db_tr, link)->db) | dbch->ndesc; 2208 db_tr->db[dbch->ndesc - 1].db.desc.depend 2209 = vtophys(STAILQ_NEXT(db_tr, link)->db) | dbch->ndesc; 2210 } 2211 bulkxfer->end = (caddr_t)db_tr; 2212 db_tr = STAILQ_NEXT(db_tr, link); 2213 } 2214 db_tr = (struct fwohcidb_tr *)bulkxfer->end; 2215 db_tr->db[0].db.desc.depend &= ~0xf; 2216 db_tr->db[dbch->ndesc - 1].db.desc.depend &= ~0xf; 2217/**/ 2218 db_tr->db[dbch->ndesc - 1].db.desc.cmd &= ~OHCI_BRANCH_ALWAYS; 2219 db_tr->db[dbch->ndesc - 1].db.desc.cmd |= OHCI_BRANCH_NEVER; 2220/**/ 2221 db_tr->db[dbch->ndesc - 1].db.desc.cmd |= OHCI_INTERRUPT_ALWAYS; 2222 2223 db_tr = (struct fwohcidb_tr *)bulkxfer->start; 2224 fdb_tr = (struct fwohcidb_tr *)bulkxfer->end; 2225/* 2226device_printf(sc->fc.dev, "DB %08x %3d %08x %08x\n", bulkxfer, bulkxfer->npacket, vtophys(db_tr->db), vtophys(fdb_tr->db)); 2227*/ 2228 return; 2229} 2230 2231static int 2232fwohci_add_tx_buf(struct fwohcidb_tr *db_tr, unsigned short size, 2233 int mode, void *buf) 2234{ 2235 volatile struct fwohcidb *db = db_tr->db; 2236 int err = 0; 2237 if(buf == 0){ 2238 err = EINVAL; 2239 return err; 2240 } 2241 db_tr->buf = buf; 2242 db_tr->dbcnt = 3; 2243 db_tr->dummy = NULL; 2244 2245 db[0].db.desc.cmd = OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8; 2246 2247 db[2].db.desc.depend = 0; 2248 db[2].db.desc.addr = vtophys(buf) + sizeof(u_int32_t); 2249 db[2].db.desc.cmd = OHCI_OUTPUT_MORE; 2250 2251 db[0].db.desc.status = 0; 2252 db[0].db.desc.count = 0; 2253 2254 db[2].db.desc.status = 0; 2255 db[2].db.desc.count = 0; 2256 if( mode & FWXFERQ_STREAM ){ 2257 db[2].db.desc.cmd |= OHCI_OUTPUT_LAST; 2258 if(mode & FWXFERQ_PACKET ){ 2259 db[2].db.desc.cmd 2260 |= OHCI_INTERRUPT_ALWAYS; 2261 } 2262 } 2263 db[2].db.desc.cmd |= OHCI_BRANCH_ALWAYS; 2264 return 1; 2265} 2266 2267int 2268fwohci_add_rx_buf(struct fwohcidb_tr *db_tr, unsigned short size, int mode, 2269 void *buf, void *dummy) 2270{ 2271 volatile struct fwohcidb *db = db_tr->db; 2272 int i; 2273 void *dbuf[2]; 2274 int dsiz[2]; 2275 2276 if(buf == 0){ 2277 buf = malloc(size, M_DEVBUF, M_NOWAIT); 2278 if(buf == NULL) return 0; 2279 db_tr->buf = buf; 2280 db_tr->dbcnt = 1; 2281 db_tr->dummy = NULL; 2282 dsiz[0] = size; 2283 dbuf[0] = buf; 2284 }else if(dummy == NULL){ 2285 db_tr->buf = buf; 2286 db_tr->dbcnt = 1; 2287 db_tr->dummy = NULL; 2288 dsiz[0] = size; 2289 dbuf[0] = buf; 2290 }else{ 2291 db_tr->buf = buf; 2292 db_tr->dbcnt = 2; 2293 db_tr->dummy = dummy; 2294 dsiz[0] = sizeof(u_int32_t); 2295 dsiz[1] = size; 2296 dbuf[0] = dummy; 2297 dbuf[1] = buf; 2298 } 2299 for(i = 0 ; i < db_tr->dbcnt ; i++){ 2300 db[i].db.desc.addr = vtophys(dbuf[i]) ; 2301 db[i].db.desc.cmd = OHCI_INPUT_MORE | dsiz[i]; 2302 if( mode & FWXFERQ_STREAM ){ 2303 db[i].db.desc.cmd |= OHCI_UPDATE; 2304 } 2305 db[i].db.desc.status = 0; 2306 db[i].db.desc.count = dsiz[i]; 2307 } 2308 if( mode & FWXFERQ_STREAM ){ 2309 db[db_tr->dbcnt - 1].db.desc.cmd |= OHCI_INPUT_LAST; 2310 if(mode & FWXFERQ_PACKET ){ 2311 db[db_tr->dbcnt - 1].db.desc.cmd 2312 |= OHCI_INTERRUPT_ALWAYS; 2313 } 2314 } 2315 db[db_tr->dbcnt - 1].db.desc.cmd |= OHCI_BRANCH_ALWAYS; 2316 return 1; 2317} 2318 2319static void 2320fwohci_ircv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count) 2321{ 2322 struct fwohcidb_tr *db_tr = dbch->top, *odb_tr; 2323 struct firewire_comm *fc = (struct firewire_comm *)sc; 2324 int z = 1; 2325 struct fw_pkt *fp; 2326 u_int8_t *ld; 2327 u_int32_t off = NULL; 2328 u_int32_t stat; 2329 u_int32_t *qld; 2330 u_int32_t reg; 2331 u_int spd; 2332 u_int dmach; 2333 int len, i, plen; 2334 caddr_t buf; 2335 2336 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 2337 if( &sc->ir[dmach] == dbch){ 2338 off = OHCI_IROFF(dmach); 2339 break; 2340 } 2341 } 2342 if(off == NULL){ 2343 return; 2344 } 2345 if(!(dbch->xferq.flag & FWXFERQ_RUNNING)){ 2346 fwohci_irx_disable(&sc->fc, dmach); 2347 return; 2348 } 2349 2350 odb_tr = NULL; 2351 db_tr = dbch->top; 2352 i = 0; 2353 while ((reg = db_tr->db[0].db.desc.status) & 0x1f) { 2354 if (count >= 0 && count-- == 0) 2355 break; 2356 ld = (u_int8_t *)db_tr->buf; 2357 if (dbch->xferq.flag & FWXFERQ_PACKET) { 2358 /* skip timeStamp */ 2359 ld += sizeof(struct fwohci_trailer); 2360 } 2361 qld = (u_int32_t *)ld; 2362 len = dbch->xferq.psize - (db_tr->db[0].db.desc.count); 2363/* 2364{ 2365device_printf(sc->fc.dev, "%04x %2x 0x%08x 0x%08x 0x%08x 0x%08x\n", len, 2366 db_tr->db[0].db.desc.status & 0x1f, qld[0],qld[1],qld[2],qld[3]); 2367} 2368*/ 2369 fp=(struct fw_pkt *)ld; 2370 qld[0] = htonl(qld[0]); 2371 plen = sizeof(struct fw_isohdr) 2372 + ntohs(fp->mode.stream.len) + sizeof(u_int32_t); 2373 ld += plen; 2374 len -= plen; 2375 buf = db_tr->buf; 2376 db_tr->buf = NULL; 2377 stat = reg & 0x1f; 2378 spd = reg & 0x3; 2379 switch(stat){ 2380 case FWOHCIEV_ACKCOMPL: 2381 case FWOHCIEV_ACKPEND: 2382 fw_rcv(&sc->fc, buf, plen - sizeof(u_int32_t), dmach, sizeof(u_int32_t), spd); 2383 break; 2384 default: 2385 free(buf, M_DEVBUF); 2386 device_printf(sc->fc.dev, "Isochronous receive err %02x\n", stat); 2387 break; 2388 } 2389 i++; 2390 fwohci_add_rx_buf(db_tr, dbch->xferq.psize, 2391 dbch->xferq.flag, 0, NULL); 2392 db_tr->db[0].db.desc.depend &= ~0xf; 2393 if(dbch->pdb_tr != NULL){ 2394 dbch->pdb_tr->db[0].db.desc.depend |= z; 2395 } else { 2396 /* XXX should be rewritten in better way */ 2397 dbch->bottom->db[0].db.desc.depend |= z; 2398 } 2399 dbch->pdb_tr = db_tr; 2400 db_tr = STAILQ_NEXT(db_tr, link); 2401 } 2402 dbch->top = db_tr; 2403 reg = OREAD(sc, OHCI_DMACTL(off)); 2404 if (reg & OHCI_CNTL_DMA_ACTIVE) 2405 return; 2406 device_printf(sc->fc.dev, "IR DMA %d stopped at %x status=%x (%d)\n", 2407 dmach, OREAD(sc, OHCI_DMACMD(off)), reg, i); 2408 dbch->top = db_tr; 2409 fwohci_irx_enable(fc, dmach); 2410} 2411 2412#define PLEN(x) (((ntohs(x))+0x3) & ~0x3) 2413static int 2414fwohci_get_plen(struct fwohci_softc *sc, struct fw_pkt *fp, int hlen) 2415{ 2416 int i; 2417 2418 for( i = 4; i < hlen ; i+=4){ 2419 fp->mode.ld[i/4] = htonl(fp->mode.ld[i/4]); 2420 } 2421 2422 switch(fp->mode.common.tcode){ 2423 case FWTCODE_RREQQ: 2424 return sizeof(fp->mode.rreqq) + sizeof(u_int32_t); 2425 case FWTCODE_WRES: 2426 return sizeof(fp->mode.wres) + sizeof(u_int32_t); 2427 case FWTCODE_WREQQ: 2428 return sizeof(fp->mode.wreqq) + sizeof(u_int32_t); 2429 case FWTCODE_RREQB: 2430 return sizeof(fp->mode.rreqb) + sizeof(u_int32_t); 2431 case FWTCODE_RRESQ: 2432 return sizeof(fp->mode.rresq) + sizeof(u_int32_t); 2433 case FWTCODE_WREQB: 2434 return sizeof(struct fw_asyhdr) + PLEN(fp->mode.wreqb.len) 2435 + sizeof(u_int32_t); 2436 case FWTCODE_LREQ: 2437 return sizeof(struct fw_asyhdr) + PLEN(fp->mode.lreq.len) 2438 + sizeof(u_int32_t); 2439 case FWTCODE_RRESB: 2440 return sizeof(struct fw_asyhdr) + PLEN(fp->mode.rresb.len) 2441 + sizeof(u_int32_t); 2442 case FWTCODE_LRES: 2443 return sizeof(struct fw_asyhdr) + PLEN(fp->mode.lres.len) 2444 + sizeof(u_int32_t); 2445 case FWOHCITCODE_PHY: 2446 return 16; 2447 } 2448 device_printf(sc->fc.dev, "Unknown tcode %d\n", fp->mode.common.tcode); 2449 return 0; 2450} 2451 2452static void 2453fwohci_arcv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count) 2454{ 2455 struct fwohcidb_tr *db_tr; 2456 int z = 1; 2457 struct fw_pkt *fp; 2458 u_int8_t *ld; 2459 u_int32_t stat, off; 2460 u_int spd; 2461 int len, plen, hlen, pcnt, poff = 0, rlen; 2462 int s; 2463 caddr_t buf; 2464 int resCount; 2465 2466 if(&sc->arrq == dbch){ 2467 off = OHCI_ARQOFF; 2468 }else if(&sc->arrs == dbch){ 2469 off = OHCI_ARSOFF; 2470 }else{ 2471 return; 2472 } 2473 2474 s = splfw(); 2475 db_tr = dbch->top; 2476 pcnt = 0; 2477 /* XXX we cannot handle a packet which lies in more than two buf */ 2478 while (db_tr->db[0].db.desc.status & OHCI_CNTL_DMA_ACTIVE) { 2479 ld = (u_int8_t *)db_tr->buf + dbch->buf_offset; 2480 resCount = db_tr->db[0].db.desc.count; 2481 len = dbch->xferq.psize - resCount 2482 - dbch->buf_offset; 2483 while (len > 0 ) { 2484 if (count >= 0 && count-- == 0) 2485 goto out; 2486 if(dbch->frag.buf != NULL){ 2487 buf = dbch->frag.buf; 2488 if (dbch->frag.plen < 0) { 2489 /* incomplete header */ 2490 int hlen; 2491 2492 hlen = - dbch->frag.plen; 2493 rlen = hlen - dbch->frag.len; 2494 bcopy(ld, dbch->frag.buf + dbch->frag.len, rlen); 2495 ld += rlen; 2496 len -= rlen; 2497 dbch->frag.len += rlen; 2498#if 0 2499 printf("(1)frag.plen=%d frag.len=%d rlen=%d len=%d\n", dbch->frag.plen, dbch->frag.len, rlen, len); 2500#endif 2501 fp=(struct fw_pkt *)dbch->frag.buf; 2502 dbch->frag.plen 2503 = fwohci_get_plen(sc, fp, hlen); 2504 if (dbch->frag.plen == 0) 2505 goto out; 2506 } 2507 rlen = dbch->frag.plen - dbch->frag.len; 2508#if 0 2509 printf("(2)frag.plen=%d frag.len=%d rlen=%d len=%d\n", dbch->frag.plen, dbch->frag.len, rlen, len); 2510#endif 2511 bcopy(ld, dbch->frag.buf + dbch->frag.len, 2512 rlen); 2513 ld += rlen; 2514 len -= rlen; 2515 plen = dbch->frag.plen; 2516 dbch->frag.buf = NULL; 2517 dbch->frag.plen = 0; 2518 dbch->frag.len = 0; 2519 poff = 0; 2520 }else{ 2521 fp=(struct fw_pkt *)ld; 2522 fp->mode.ld[0] = htonl(fp->mode.ld[0]); 2523 switch(fp->mode.common.tcode){ 2524 case FWTCODE_RREQQ: 2525 case FWTCODE_WRES: 2526 case FWTCODE_WREQQ: 2527 case FWTCODE_RRESQ: 2528 case FWOHCITCODE_PHY: 2529 hlen = 12; 2530 break; 2531 case FWTCODE_RREQB: 2532 case FWTCODE_WREQB: 2533 case FWTCODE_LREQ: 2534 case FWTCODE_RRESB: 2535 case FWTCODE_LRES: 2536 hlen = 16; 2537 break; 2538 default: 2539 device_printf(sc->fc.dev, "Unknown tcode %d\n", fp->mode.common.tcode); 2540 goto out; 2541 } 2542 if (len >= hlen) { 2543 plen = fwohci_get_plen(sc, fp, hlen); 2544 if (plen == 0) 2545 goto out; 2546 plen = (plen + 3) & ~3; 2547 len -= plen; 2548 } else { 2549 plen = -hlen; 2550 len -= hlen; 2551 } 2552 if(resCount > 0 || len > 0){ 2553 buf = malloc( dbch->xferq.psize, 2554 M_DEVBUF, M_NOWAIT); 2555 if(buf == NULL){ 2556 printf("cannot malloc!\n"); 2557 free(db_tr->buf, M_DEVBUF); 2558 goto out; 2559 } 2560 bcopy(ld, buf, plen); 2561 poff = 0; 2562 dbch->frag.buf = NULL; 2563 dbch->frag.plen = 0; 2564 dbch->frag.len = 0; 2565 }else if(len < 0){ 2566 dbch->frag.buf = db_tr->buf; 2567 if (plen < 0) { 2568#if 0 2569 printf("plen < 0:" 2570 "hlen: %d len: %d\n", 2571 hlen, len); 2572#endif 2573 dbch->frag.len = hlen + len; 2574 dbch->frag.plen = -hlen; 2575 } else { 2576 dbch->frag.len = plen + len; 2577 dbch->frag.plen = plen; 2578 } 2579 bcopy(ld, db_tr->buf, dbch->frag.len); 2580 buf = NULL; 2581 }else{ 2582 buf = db_tr->buf; 2583 poff = ld - (u_int8_t *)buf; 2584 dbch->frag.buf = NULL; 2585 dbch->frag.plen = 0; 2586 dbch->frag.len = 0; 2587 } 2588 ld += plen; 2589 } 2590 if( buf != NULL){ 2591/* DMA result-code will be written at the tail of packet */ 2592 stat = ((struct fwohci_trailer *)(ld - sizeof(struct fwohci_trailer)))->stat; 2593 spd = (stat >> 5) & 0x3; 2594 stat &= 0x1f; 2595 switch(stat){ 2596 case FWOHCIEV_ACKPEND: 2597#if 0 2598 printf("fwohci_arcv: ack pending..\n"); 2599#endif 2600 /* fall through */ 2601 case FWOHCIEV_ACKCOMPL: 2602 if( poff != 0 ) 2603 bcopy(buf+poff, buf, plen - 4); 2604 fw_rcv(&sc->fc, buf, plen - sizeof(struct fwohci_trailer), 0, 0, spd); 2605 break; 2606 case FWOHCIEV_BUSRST: 2607 free(buf, M_DEVBUF); 2608 if (sc->fc.status != FWBUSRESET) 2609 printf("got BUSRST packet!?\n"); 2610 break; 2611 default: 2612 device_printf(sc->fc.dev, "Async DMA Receive error err = %02x %s\n", stat, fwohcicode[stat]); 2613#if 0 /* XXX */ 2614 goto out; 2615#endif 2616 break; 2617 } 2618 } 2619 pcnt ++; 2620 }; 2621out: 2622 if (resCount == 0) { 2623 /* done on this buffer */ 2624 fwohci_add_rx_buf(db_tr, dbch->xferq.psize, 2625 dbch->xferq.flag, 0, NULL); 2626 dbch->bottom->db[0].db.desc.depend |= z; 2627 dbch->bottom = db_tr; 2628 db_tr = STAILQ_NEXT(db_tr, link); 2629 dbch->top = db_tr; 2630 dbch->buf_offset = 0; 2631 } else { 2632 dbch->buf_offset = dbch->xferq.psize - resCount; 2633 break; 2634 } 2635 /* XXX make sure DMA is not dead */ 2636 } 2637#if 0 2638 if (pcnt < 1) 2639 printf("fwohci_arcv: no packets\n"); 2640#endif 2641 splx(s); 2642} 2643