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 * $FreeBSD$ 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/bus.h> 51 #include <sys/kernel.h> 52 #include <sys/conf.h> 53 #include <sys/endian.h> 54 55 #include <machine/bus.h> 56 57 #if __FreeBSD_version < 500000 58 #include <machine/clock.h> /* for DELAY() */ 59 #endif 60 61 #include <dev/firewire/firewire.h> 62 #include <dev/firewire/firewirereg.h> 63 #include <dev/firewire/fwdma.h> 64 #include <dev/firewire/fwohcireg.h> 65 #include <dev/firewire/fwohcivar.h> 66 #include <dev/firewire/firewire_phy.h> 67 68 #undef OHCI_DEBUG 69 70 static char dbcode[16][0x10]={"OUTM", "OUTL","INPM","INPL", 71 "STOR","LOAD","NOP ","STOP",}; 72 73 static char dbkey[8][0x10]={"ST0", "ST1","ST2","ST3", 74 "UNDEF","REG","SYS","DEV"}; 75 static char dbcond[4][0x10]={"NEV","C=1", "C=0", "ALL"}; 76 char fwohcicode[32][0x20]={ 77 "No stat","Undef","long","miss Ack err", 78 "underrun","overrun","desc err", "data read err", 79 "data write err","bus reset","timeout","tcode err", 80 "Undef","Undef","unknown event","flushed", 81 "Undef","ack complete","ack pend","Undef", 82 "ack busy_X","ack busy_A","ack busy_B","Undef", 83 "Undef","Undef","Undef","ack tardy", 84 "Undef","ack data_err","ack type_err",""}; 85 86 #define MAX_SPEED 3 87 extern char linkspeed[][0x10]; 88 u_int32_t tagbit[4] = { 1 << 28, 1 << 29, 1 << 30, 1 << 31}; 89 90 static struct tcode_info tinfo[] = { 91 /* hdr_len block flag*/ 92 /* 0 WREQQ */ {16, FWTI_REQ | FWTI_TLABEL}, 93 /* 1 WREQB */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY}, 94 /* 2 WRES */ {12, FWTI_RES}, 95 /* 3 XXX */ { 0, 0}, 96 /* 4 RREQQ */ {12, FWTI_REQ | FWTI_TLABEL}, 97 /* 5 RREQB */ {16, FWTI_REQ | FWTI_TLABEL}, 98 /* 6 RRESQ */ {16, FWTI_RES}, 99 /* 7 RRESB */ {16, FWTI_RES | FWTI_BLOCK_ASY}, 100 /* 8 CYCS */ { 0, 0}, 101 /* 9 LREQ */ {16, FWTI_REQ | FWTI_TLABEL | FWTI_BLOCK_ASY}, 102 /* a STREAM */ { 4, FWTI_REQ | FWTI_BLOCK_STR}, 103 /* b LRES */ {16, FWTI_RES | FWTI_BLOCK_ASY}, 104 /* c XXX */ { 0, 0}, 105 /* d XXX */ { 0, 0}, 106 /* e PHY */ {12, FWTI_REQ}, 107 /* f XXX */ { 0, 0} 108 }; 109 110 #define OHCI_WRITE_SIGMASK 0xffff0000 111 #define OHCI_READ_SIGMASK 0xffff0000 112 113 #define OWRITE(sc, r, x) bus_space_write_4((sc)->bst, (sc)->bsh, (r), (x)) 114 #define OREAD(sc, r) bus_space_read_4((sc)->bst, (sc)->bsh, (r)) 115 116 static void fwohci_ibr __P((struct firewire_comm *)); 117 static void fwohci_db_init __P((struct fwohci_softc *, struct fwohci_dbch *)); 118 static void fwohci_db_free __P((struct fwohci_dbch *)); 119 static void fwohci_arcv __P((struct fwohci_softc *, struct fwohci_dbch *, int)); 120 static void fwohci_txd __P((struct fwohci_softc *, struct fwohci_dbch *)); 121 static void fwohci_start_atq __P((struct firewire_comm *)); 122 static void fwohci_start_ats __P((struct firewire_comm *)); 123 static void fwohci_start __P((struct fwohci_softc *, struct fwohci_dbch *)); 124 static u_int32_t fwphy_wrdata __P(( struct fwohci_softc *, u_int32_t, u_int32_t)); 125 static u_int32_t fwphy_rddata __P(( struct fwohci_softc *, u_int32_t)); 126 static int fwohci_rx_enable __P((struct fwohci_softc *, struct fwohci_dbch *)); 127 static int fwohci_tx_enable __P((struct fwohci_softc *, struct fwohci_dbch *)); 128 static int fwohci_irx_enable __P((struct firewire_comm *, int)); 129 static int fwohci_irx_disable __P((struct firewire_comm *, int)); 130 #if BYTE_ORDER == BIG_ENDIAN 131 static void fwohci_irx_post __P((struct firewire_comm *, u_int32_t *)); 132 #endif 133 static int fwohci_itxbuf_enable __P((struct firewire_comm *, int)); 134 static int fwohci_itx_disable __P((struct firewire_comm *, int)); 135 static void fwohci_timeout __P((void *)); 136 static void fwohci_set_intr __P((struct firewire_comm *, int)); 137 138 static int fwohci_add_rx_buf __P((struct fwohci_dbch *, struct fwohcidb_tr *, int, struct fwdma_alloc *)); 139 static int fwohci_add_tx_buf __P((struct fwohci_dbch *, struct fwohcidb_tr *, int)); 140 static void dump_db __P((struct fwohci_softc *, u_int32_t)); 141 static void print_db __P((struct fwohcidb_tr *, volatile struct fwohcidb *, u_int32_t , u_int32_t)); 142 static void dump_dma __P((struct fwohci_softc *, u_int32_t)); 143 static u_int32_t fwohci_cyctimer __P((struct firewire_comm *)); 144 static void fwohci_rbuf_update __P((struct fwohci_softc *, int)); 145 static void fwohci_tbuf_update __P((struct fwohci_softc *, int)); 146 void fwohci_txbufdb __P((struct fwohci_softc *, int , struct fw_bulkxfer *)); 147 #if FWOHCI_TASKQUEUE 148 static void fwohci_complete(void *, int); 149 #endif 150 151 /* 152 * memory allocated for DMA programs 153 */ 154 #define DMA_PROG_ALLOC (8 * PAGE_SIZE) 155 156 #define NDB FWMAXQUEUE 157 158 #define OHCI_VERSION 0x00 159 #define OHCI_ATRETRY 0x08 160 #define OHCI_CROMHDR 0x18 161 #define OHCI_BUS_OPT 0x20 162 #define OHCI_BUSIRMC (1 << 31) 163 #define OHCI_BUSCMC (1 << 30) 164 #define OHCI_BUSISC (1 << 29) 165 #define OHCI_BUSBMC (1 << 28) 166 #define OHCI_BUSPMC (1 << 27) 167 #define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\ 168 OHCI_BUSBMC | OHCI_BUSPMC 169 170 #define OHCI_EUID_HI 0x24 171 #define OHCI_EUID_LO 0x28 172 173 #define OHCI_CROMPTR 0x34 174 #define OHCI_HCCCTL 0x50 175 #define OHCI_HCCCTLCLR 0x54 176 #define OHCI_AREQHI 0x100 177 #define OHCI_AREQHICLR 0x104 178 #define OHCI_AREQLO 0x108 179 #define OHCI_AREQLOCLR 0x10c 180 #define OHCI_PREQHI 0x110 181 #define OHCI_PREQHICLR 0x114 182 #define OHCI_PREQLO 0x118 183 #define OHCI_PREQLOCLR 0x11c 184 #define OHCI_PREQUPPER 0x120 185 186 #define OHCI_SID_BUF 0x64 187 #define OHCI_SID_CNT 0x68 188 #define OHCI_SID_ERR (1 << 31) 189 #define OHCI_SID_CNT_MASK 0xffc 190 191 #define OHCI_IT_STAT 0x90 192 #define OHCI_IT_STATCLR 0x94 193 #define OHCI_IT_MASK 0x98 194 #define OHCI_IT_MASKCLR 0x9c 195 196 #define OHCI_IR_STAT 0xa0 197 #define OHCI_IR_STATCLR 0xa4 198 #define OHCI_IR_MASK 0xa8 199 #define OHCI_IR_MASKCLR 0xac 200 201 #define OHCI_LNKCTL 0xe0 202 #define OHCI_LNKCTLCLR 0xe4 203 204 #define OHCI_PHYACCESS 0xec 205 #define OHCI_CYCLETIMER 0xf0 206 207 #define OHCI_DMACTL(off) (off) 208 #define OHCI_DMACTLCLR(off) (off + 4) 209 #define OHCI_DMACMD(off) (off + 0xc) 210 #define OHCI_DMAMATCH(off) (off + 0x10) 211 212 #define OHCI_ATQOFF 0x180 213 #define OHCI_ATQCTL OHCI_ATQOFF 214 #define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4) 215 #define OHCI_ATQCMD (OHCI_ATQOFF + 0xc) 216 #define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10) 217 218 #define OHCI_ATSOFF 0x1a0 219 #define OHCI_ATSCTL OHCI_ATSOFF 220 #define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4) 221 #define OHCI_ATSCMD (OHCI_ATSOFF + 0xc) 222 #define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10) 223 224 #define OHCI_ARQOFF 0x1c0 225 #define OHCI_ARQCTL OHCI_ARQOFF 226 #define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4) 227 #define OHCI_ARQCMD (OHCI_ARQOFF + 0xc) 228 #define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10) 229 230 #define OHCI_ARSOFF 0x1e0 231 #define OHCI_ARSCTL OHCI_ARSOFF 232 #define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4) 233 #define OHCI_ARSCMD (OHCI_ARSOFF + 0xc) 234 #define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10) 235 236 #define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH)) 237 #define OHCI_ITCTL(CH) (OHCI_ITOFF(CH)) 238 #define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4) 239 #define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc) 240 241 #define OHCI_IROFF(CH) (0x400 + 0x20 * (CH)) 242 #define OHCI_IRCTL(CH) (OHCI_IROFF(CH)) 243 #define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4) 244 #define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc) 245 #define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10) 246 247 d_ioctl_t fwohci_ioctl; 248 249 /* 250 * Communication with PHY device 251 */ 252 static u_int32_t 253 fwphy_wrdata( struct fwohci_softc *sc, u_int32_t addr, u_int32_t data) 254 { 255 u_int32_t fun; 256 257 addr &= 0xf; 258 data &= 0xff; 259 260 fun = (PHYDEV_WRCMD | (addr << PHYDEV_REGADDR) | (data << PHYDEV_WRDATA)); 261 OWRITE(sc, OHCI_PHYACCESS, fun); 262 DELAY(100); 263 264 return(fwphy_rddata( sc, addr)); 265 } 266 267 static u_int32_t 268 fwohci_set_bus_manager(struct firewire_comm *fc, u_int node) 269 { 270 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 271 int i; 272 u_int32_t bm; 273 274 #define OHCI_CSR_DATA 0x0c 275 #define OHCI_CSR_COMP 0x10 276 #define OHCI_CSR_CONT 0x14 277 #define OHCI_BUS_MANAGER_ID 0 278 279 OWRITE(sc, OHCI_CSR_DATA, node); 280 OWRITE(sc, OHCI_CSR_COMP, 0x3f); 281 OWRITE(sc, OHCI_CSR_CONT, OHCI_BUS_MANAGER_ID); 282 for (i = 0; !(OREAD(sc, OHCI_CSR_CONT) & (1<<31)) && (i < 1000); i++) 283 DELAY(10); 284 bm = OREAD(sc, OHCI_CSR_DATA); 285 if((bm & 0x3f) == 0x3f) 286 bm = node; 287 if (bootverbose) 288 device_printf(sc->fc.dev, 289 "fw_set_bus_manager: %d->%d (loop=%d)\n", bm, node, i); 290 291 return(bm); 292 } 293 294 static u_int32_t 295 fwphy_rddata(struct fwohci_softc *sc, u_int addr) 296 { 297 u_int32_t fun, stat; 298 u_int i, retry = 0; 299 300 addr &= 0xf; 301 #define MAX_RETRY 100 302 again: 303 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_REG_FAIL); 304 fun = PHYDEV_RDCMD | (addr << PHYDEV_REGADDR); 305 OWRITE(sc, OHCI_PHYACCESS, fun); 306 for ( i = 0 ; i < MAX_RETRY ; i ++ ){ 307 fun = OREAD(sc, OHCI_PHYACCESS); 308 if ((fun & PHYDEV_RDCMD) == 0 && (fun & PHYDEV_RDDONE) != 0) 309 break; 310 DELAY(100); 311 } 312 if(i >= MAX_RETRY) { 313 if (bootverbose) 314 device_printf(sc->fc.dev, "phy read failed(1).\n"); 315 if (++retry < MAX_RETRY) { 316 DELAY(100); 317 goto again; 318 } 319 } 320 /* Make sure that SCLK is started */ 321 stat = OREAD(sc, FWOHCI_INTSTAT); 322 if ((stat & OHCI_INT_REG_FAIL) != 0 || 323 ((fun >> PHYDEV_REGADDR) & 0xf) != addr) { 324 if (bootverbose) 325 device_printf(sc->fc.dev, "phy read failed(2).\n"); 326 if (++retry < MAX_RETRY) { 327 DELAY(100); 328 goto again; 329 } 330 } 331 if (bootverbose || retry >= MAX_RETRY) 332 device_printf(sc->fc.dev, 333 "fwphy_rddata: 0x%x loop=%d, retry=%d\n", addr, i, retry); 334 #undef MAX_RETRY 335 return((fun >> PHYDEV_RDDATA )& 0xff); 336 } 337 /* Device specific ioctl. */ 338 int 339 fwohci_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td) 340 { 341 struct firewire_softc *sc; 342 struct fwohci_softc *fc; 343 int unit = DEV2UNIT(dev); 344 int err = 0; 345 struct fw_reg_req_t *reg = (struct fw_reg_req_t *) data; 346 u_int32_t *dmach = (u_int32_t *) data; 347 348 sc = devclass_get_softc(firewire_devclass, unit); 349 if(sc == NULL){ 350 return(EINVAL); 351 } 352 fc = (struct fwohci_softc *)sc->fc; 353 354 if (!data) 355 return(EINVAL); 356 357 switch (cmd) { 358 case FWOHCI_WRREG: 359 #define OHCI_MAX_REG 0x800 360 if(reg->addr <= OHCI_MAX_REG){ 361 OWRITE(fc, reg->addr, reg->data); 362 reg->data = OREAD(fc, reg->addr); 363 }else{ 364 err = EINVAL; 365 } 366 break; 367 case FWOHCI_RDREG: 368 if(reg->addr <= OHCI_MAX_REG){ 369 reg->data = OREAD(fc, reg->addr); 370 }else{ 371 err = EINVAL; 372 } 373 break; 374 /* Read DMA descriptors for debug */ 375 case DUMPDMA: 376 if(*dmach <= OHCI_MAX_DMA_CH ){ 377 dump_dma(fc, *dmach); 378 dump_db(fc, *dmach); 379 }else{ 380 err = EINVAL; 381 } 382 break; 383 /* Read/Write Phy registers */ 384 #define OHCI_MAX_PHY_REG 0xf 385 case FWOHCI_RDPHYREG: 386 if (reg->addr <= OHCI_MAX_PHY_REG) 387 reg->data = fwphy_rddata(fc, reg->addr); 388 else 389 err = EINVAL; 390 break; 391 case FWOHCI_WRPHYREG: 392 if (reg->addr <= OHCI_MAX_PHY_REG) 393 reg->data = fwphy_wrdata(fc, reg->addr, reg->data); 394 else 395 err = EINVAL; 396 break; 397 default: 398 err = EINVAL; 399 break; 400 } 401 return err; 402 } 403 404 static int 405 fwohci_probe_phy(struct fwohci_softc *sc, device_t dev) 406 { 407 u_int32_t reg, reg2; 408 int e1394a = 1; 409 /* 410 * probe PHY parameters 411 * 0. to prove PHY version, whether compliance of 1394a. 412 * 1. to probe maximum speed supported by the PHY and 413 * number of port supported by core-logic. 414 * It is not actually available port on your PC . 415 */ 416 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS); 417 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 418 419 if((reg >> 5) != 7 ){ 420 sc->fc.mode &= ~FWPHYASYST; 421 sc->fc.nport = reg & FW_PHY_NP; 422 sc->fc.speed = reg & FW_PHY_SPD >> 6; 423 if (sc->fc.speed > MAX_SPEED) { 424 device_printf(dev, "invalid speed %d (fixed to %d).\n", 425 sc->fc.speed, MAX_SPEED); 426 sc->fc.speed = MAX_SPEED; 427 } 428 device_printf(dev, 429 "Phy 1394 only %s, %d ports.\n", 430 linkspeed[sc->fc.speed], sc->fc.nport); 431 }else{ 432 reg2 = fwphy_rddata(sc, FW_PHY_ESPD_REG); 433 sc->fc.mode |= FWPHYASYST; 434 sc->fc.nport = reg & FW_PHY_NP; 435 sc->fc.speed = (reg2 & FW_PHY_ESPD) >> 5; 436 if (sc->fc.speed > MAX_SPEED) { 437 device_printf(dev, "invalid speed %d (fixed to %d).\n", 438 sc->fc.speed, MAX_SPEED); 439 sc->fc.speed = MAX_SPEED; 440 } 441 device_printf(dev, 442 "Phy 1394a available %s, %d ports.\n", 443 linkspeed[sc->fc.speed], sc->fc.nport); 444 445 /* check programPhyEnable */ 446 reg2 = fwphy_rddata(sc, 5); 447 #if 0 448 if (e1394a && (OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_PRPHY)) { 449 #else /* XXX force to enable 1394a */ 450 if (e1394a) { 451 #endif 452 if (bootverbose) 453 device_printf(dev, 454 "Enable 1394a Enhancements\n"); 455 /* enable EAA EMC */ 456 reg2 |= 0x03; 457 /* set aPhyEnhanceEnable */ 458 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_PHYEN); 459 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_PRPHY); 460 } else { 461 /* for safe */ 462 reg2 &= ~0x83; 463 } 464 reg2 = fwphy_wrdata(sc, 5, reg2); 465 } 466 467 reg = fwphy_rddata(sc, FW_PHY_SPD_REG); 468 if((reg >> 5) == 7 ){ 469 reg = fwphy_rddata(sc, 4); 470 reg |= 1 << 6; 471 fwphy_wrdata(sc, 4, reg); 472 reg = fwphy_rddata(sc, 4); 473 } 474 return 0; 475 } 476 477 478 void 479 fwohci_reset(struct fwohci_softc *sc, device_t dev) 480 { 481 int i, max_rec, speed; 482 u_int32_t reg, reg2; 483 struct fwohcidb_tr *db_tr; 484 485 /* Disable interrupt */ 486 OWRITE(sc, FWOHCI_INTMASKCLR, ~0); 487 488 /* Now stopping all DMA channel */ 489 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 490 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 491 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 492 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 493 494 OWRITE(sc, OHCI_IR_MASKCLR, ~0); 495 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 496 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 497 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 498 } 499 500 /* FLUSH FIFO and reset Transmitter/Reciever */ 501 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 502 if (bootverbose) 503 device_printf(dev, "resetting OHCI..."); 504 i = 0; 505 while(OREAD(sc, OHCI_HCCCTL) & OHCI_HCC_RESET) { 506 if (i++ > 100) break; 507 DELAY(1000); 508 } 509 if (bootverbose) 510 printf("done (loop=%d)\n", i); 511 512 /* Probe phy */ 513 fwohci_probe_phy(sc, dev); 514 515 /* Probe link */ 516 reg = OREAD(sc, OHCI_BUS_OPT); 517 reg2 = reg | OHCI_BUSFNC; 518 max_rec = (reg & 0x0000f000) >> 12; 519 speed = (reg & 0x00000007); 520 device_printf(dev, "Link %s, max_rec %d bytes.\n", 521 linkspeed[speed], MAXREC(max_rec)); 522 /* XXX fix max_rec */ 523 sc->fc.maxrec = sc->fc.speed + 8; 524 if (max_rec != sc->fc.maxrec) { 525 reg2 = (reg2 & 0xffff0fff) | (sc->fc.maxrec << 12); 526 device_printf(dev, "max_rec %d -> %d\n", 527 MAXREC(max_rec), MAXREC(sc->fc.maxrec)); 528 } 529 if (bootverbose) 530 device_printf(dev, "BUS_OPT 0x%x -> 0x%x\n", reg, reg2); 531 OWRITE(sc, OHCI_BUS_OPT, reg2); 532 533 /* Initialize registers */ 534 OWRITE(sc, OHCI_CROMHDR, sc->fc.config_rom[0]); 535 OWRITE(sc, OHCI_CROMPTR, sc->crom_dma.bus_addr); 536 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_BIGEND); 537 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_POSTWR); 538 OWRITE(sc, OHCI_SID_BUF, sc->sid_dma.bus_addr); 539 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_SID); 540 fw_busreset(&sc->fc); 541 542 /* Enable link */ 543 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LINKEN); 544 545 /* Force to start async RX DMA */ 546 sc->arrq.xferq.flag &= ~FWXFERQ_RUNNING; 547 sc->arrs.xferq.flag &= ~FWXFERQ_RUNNING; 548 fwohci_rx_enable(sc, &sc->arrq); 549 fwohci_rx_enable(sc, &sc->arrs); 550 551 /* Initialize async TX */ 552 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 553 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN | OHCI_CNTL_DMA_DEAD); 554 555 /* AT Retries */ 556 OWRITE(sc, FWOHCI_RETRY, 557 /* CycleLimit PhyRespRetries ATRespRetries ATReqRetries */ 558 (0xffff << 16 ) | (0x0f << 8) | (0x0f << 4) | 0x0f) ; 559 560 sc->atrq.top = STAILQ_FIRST(&sc->atrq.db_trq); 561 sc->atrs.top = STAILQ_FIRST(&sc->atrs.db_trq); 562 sc->atrq.bottom = sc->atrq.top; 563 sc->atrs.bottom = sc->atrs.top; 564 565 for( i = 0, db_tr = sc->atrq.top; i < sc->atrq.ndb ; 566 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 567 db_tr->xfer = NULL; 568 } 569 for( i = 0, db_tr = sc->atrs.top; i < sc->atrs.ndb ; 570 i ++, db_tr = STAILQ_NEXT(db_tr, link)){ 571 db_tr->xfer = NULL; 572 } 573 574 575 /* Enable interrupt */ 576 OWRITE(sc, FWOHCI_INTMASK, 577 OHCI_INT_ERR | OHCI_INT_PHY_SID 578 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 579 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 580 | OHCI_INT_PHY_BUS_R | OHCI_INT_PW_ERR); 581 fwohci_set_intr(&sc->fc, 1); 582 583 } 584 585 int 586 fwohci_init(struct fwohci_softc *sc, device_t dev) 587 { 588 int i; 589 u_int32_t reg; 590 u_int8_t ui[8]; 591 592 #if FWOHCI_TASKQUEUE 593 TASK_INIT(&sc->fwohci_task_complete, 0, fwohci_complete, sc); 594 #endif 595 596 reg = OREAD(sc, OHCI_VERSION); 597 device_printf(dev, "OHCI version %x.%x (ROM=%d)\n", 598 (reg>>16) & 0xff, reg & 0xff, (reg>>24) & 1); 599 600 if (((reg>>16) & 0xff) < 1) { 601 device_printf(dev, "invalid OHCI version\n"); 602 return (ENXIO); 603 } 604 605 /* Available Isochrounous DMA channel probe */ 606 OWRITE(sc, OHCI_IT_MASK, 0xffffffff); 607 OWRITE(sc, OHCI_IR_MASK, 0xffffffff); 608 reg = OREAD(sc, OHCI_IT_MASK) & OREAD(sc, OHCI_IR_MASK); 609 OWRITE(sc, OHCI_IT_MASKCLR, 0xffffffff); 610 OWRITE(sc, OHCI_IR_MASKCLR, 0xffffffff); 611 for (i = 0; i < 0x20; i++) 612 if ((reg & (1 << i)) == 0) 613 break; 614 sc->fc.nisodma = i; 615 device_printf(dev, "No. of Isochronous channel is %d.\n", i); 616 if (i == 0) 617 return (ENXIO); 618 619 sc->fc.arq = &sc->arrq.xferq; 620 sc->fc.ars = &sc->arrs.xferq; 621 sc->fc.atq = &sc->atrq.xferq; 622 sc->fc.ats = &sc->atrs.xferq; 623 624 sc->arrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 625 sc->arrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 626 sc->atrq.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 627 sc->atrs.xferq.psize = roundup2(FWPMAX_S400, PAGE_SIZE); 628 629 sc->arrq.xferq.start = NULL; 630 sc->arrs.xferq.start = NULL; 631 sc->atrq.xferq.start = fwohci_start_atq; 632 sc->atrs.xferq.start = fwohci_start_ats; 633 634 sc->arrq.xferq.buf = NULL; 635 sc->arrs.xferq.buf = NULL; 636 sc->atrq.xferq.buf = NULL; 637 sc->atrs.xferq.buf = NULL; 638 639 sc->arrq.xferq.dmach = -1; 640 sc->arrs.xferq.dmach = -1; 641 sc->atrq.xferq.dmach = -1; 642 sc->atrs.xferq.dmach = -1; 643 644 sc->arrq.ndesc = 1; 645 sc->arrs.ndesc = 1; 646 sc->atrq.ndesc = 8; /* equal to maximum of mbuf chains */ 647 sc->atrs.ndesc = 2; 648 649 sc->arrq.ndb = NDB; 650 sc->arrs.ndb = NDB / 2; 651 sc->atrq.ndb = NDB; 652 sc->atrs.ndb = NDB / 2; 653 654 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 655 sc->fc.it[i] = &sc->it[i].xferq; 656 sc->fc.ir[i] = &sc->ir[i].xferq; 657 sc->it[i].xferq.dmach = i; 658 sc->ir[i].xferq.dmach = i; 659 sc->it[i].ndb = 0; 660 sc->ir[i].ndb = 0; 661 } 662 663 sc->fc.tcode = tinfo; 664 sc->fc.dev = dev; 665 666 sc->fc.config_rom = fwdma_malloc(&sc->fc, CROMSIZE, CROMSIZE, 667 &sc->crom_dma, BUS_DMA_WAITOK); 668 if(sc->fc.config_rom == NULL){ 669 device_printf(dev, "config_rom alloc failed."); 670 return ENOMEM; 671 } 672 673 #if 0 674 bzero(&sc->fc.config_rom[0], CROMSIZE); 675 sc->fc.config_rom[1] = 0x31333934; 676 sc->fc.config_rom[2] = 0xf000a002; 677 sc->fc.config_rom[3] = OREAD(sc, OHCI_EUID_HI); 678 sc->fc.config_rom[4] = OREAD(sc, OHCI_EUID_LO); 679 sc->fc.config_rom[5] = 0; 680 sc->fc.config_rom[0] = (4 << 24) | (5 << 16); 681 682 sc->fc.config_rom[0] |= fw_crc16(&sc->fc.config_rom[1], 5*4); 683 #endif 684 685 686 /* SID recieve buffer must allign 2^11 */ 687 #define OHCI_SIDSIZE (1 << 11) 688 sc->sid_buf = fwdma_malloc(&sc->fc, OHCI_SIDSIZE, OHCI_SIDSIZE, 689 &sc->sid_dma, BUS_DMA_WAITOK); 690 if (sc->sid_buf == NULL) { 691 device_printf(dev, "sid_buf alloc failed."); 692 return ENOMEM; 693 } 694 695 fwdma_malloc(&sc->fc, sizeof(u_int32_t), sizeof(u_int32_t), 696 &sc->dummy_dma, BUS_DMA_WAITOK); 697 698 if (sc->dummy_dma.v_addr == NULL) { 699 device_printf(dev, "dummy_dma alloc failed."); 700 return ENOMEM; 701 } 702 703 fwohci_db_init(sc, &sc->arrq); 704 if ((sc->arrq.flags & FWOHCI_DBCH_INIT) == 0) 705 return ENOMEM; 706 707 fwohci_db_init(sc, &sc->arrs); 708 if ((sc->arrs.flags & FWOHCI_DBCH_INIT) == 0) 709 return ENOMEM; 710 711 fwohci_db_init(sc, &sc->atrq); 712 if ((sc->atrq.flags & FWOHCI_DBCH_INIT) == 0) 713 return ENOMEM; 714 715 fwohci_db_init(sc, &sc->atrs); 716 if ((sc->atrs.flags & FWOHCI_DBCH_INIT) == 0) 717 return ENOMEM; 718 719 sc->fc.eui.hi = OREAD(sc, FWOHCIGUID_H); 720 sc->fc.eui.lo = OREAD(sc, FWOHCIGUID_L); 721 for( i = 0 ; i < 8 ; i ++) 722 ui[i] = FW_EUI64_BYTE(&sc->fc.eui,i); 723 device_printf(dev, "EUI64 %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 724 ui[0], ui[1], ui[2], ui[3], ui[4], ui[5], ui[6], ui[7]); 725 726 sc->fc.ioctl = fwohci_ioctl; 727 sc->fc.cyctimer = fwohci_cyctimer; 728 sc->fc.set_bmr = fwohci_set_bus_manager; 729 sc->fc.ibr = fwohci_ibr; 730 sc->fc.irx_enable = fwohci_irx_enable; 731 sc->fc.irx_disable = fwohci_irx_disable; 732 733 sc->fc.itx_enable = fwohci_itxbuf_enable; 734 sc->fc.itx_disable = fwohci_itx_disable; 735 #if BYTE_ORDER == BIG_ENDIAN 736 sc->fc.irx_post = fwohci_irx_post; 737 #else 738 sc->fc.irx_post = NULL; 739 #endif 740 sc->fc.itx_post = NULL; 741 sc->fc.timeout = fwohci_timeout; 742 sc->fc.poll = fwohci_poll; 743 sc->fc.set_intr = fwohci_set_intr; 744 745 sc->intmask = sc->irstat = sc->itstat = 0; 746 747 fw_init(&sc->fc); 748 fwohci_reset(sc, dev); 749 750 return 0; 751 } 752 753 void 754 fwohci_timeout(void *arg) 755 { 756 struct fwohci_softc *sc; 757 758 sc = (struct fwohci_softc *)arg; 759 } 760 761 u_int32_t 762 fwohci_cyctimer(struct firewire_comm *fc) 763 { 764 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 765 return(OREAD(sc, OHCI_CYCLETIMER)); 766 } 767 768 int 769 fwohci_detach(struct fwohci_softc *sc, device_t dev) 770 { 771 int i; 772 773 if (sc->sid_buf != NULL) 774 fwdma_free(&sc->fc, &sc->sid_dma); 775 if (sc->fc.config_rom != NULL) 776 fwdma_free(&sc->fc, &sc->crom_dma); 777 778 fwohci_db_free(&sc->arrq); 779 fwohci_db_free(&sc->arrs); 780 781 fwohci_db_free(&sc->atrq); 782 fwohci_db_free(&sc->atrs); 783 784 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 785 fwohci_db_free(&sc->it[i]); 786 fwohci_db_free(&sc->ir[i]); 787 } 788 789 return 0; 790 } 791 792 #define LAST_DB(dbtr, db) do { \ 793 struct fwohcidb_tr *_dbtr = (dbtr); \ 794 int _cnt = _dbtr->dbcnt; \ 795 db = &_dbtr->db[ (_cnt > 2) ? (_cnt -1) : 0]; \ 796 } while (0) 797 798 static void 799 fwohci_execute_db(void *arg, bus_dma_segment_t *segs, int nseg, int error) 800 { 801 struct fwohcidb_tr *db_tr; 802 volatile struct fwohcidb *db; 803 bus_dma_segment_t *s; 804 int i; 805 806 db_tr = (struct fwohcidb_tr *)arg; 807 db = &db_tr->db[db_tr->dbcnt]; 808 if (error) { 809 if (firewire_debug || error != EFBIG) 810 printf("fwohci_execute_db: error=%d\n", error); 811 return; 812 } 813 for (i = 0; i < nseg; i++) { 814 s = &segs[i]; 815 FWOHCI_DMA_WRITE(db->db.desc.addr, s->ds_addr); 816 FWOHCI_DMA_WRITE(db->db.desc.cmd, s->ds_len); 817 FWOHCI_DMA_WRITE(db->db.desc.res, 0); 818 db++; 819 db_tr->dbcnt++; 820 } 821 } 822 823 static void 824 fwohci_execute_db2(void *arg, bus_dma_segment_t *segs, int nseg, 825 bus_size_t size, int error) 826 { 827 fwohci_execute_db(arg, segs, nseg, error); 828 } 829 830 static void 831 fwohci_start(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 832 { 833 int i, s; 834 int tcode, hdr_len, pl_off, pl_len; 835 int fsegment = -1; 836 u_int32_t off; 837 struct fw_xfer *xfer; 838 struct fw_pkt *fp; 839 volatile struct fwohci_txpkthdr *ohcifp; 840 struct fwohcidb_tr *db_tr; 841 volatile struct fwohcidb *db; 842 volatile u_int32_t *ld; 843 struct tcode_info *info; 844 static int maxdesc=0; 845 846 if(&sc->atrq == dbch){ 847 off = OHCI_ATQOFF; 848 }else if(&sc->atrs == dbch){ 849 off = OHCI_ATSOFF; 850 }else{ 851 return; 852 } 853 854 if (dbch->flags & FWOHCI_DBCH_FULL) 855 return; 856 857 s = splfw(); 858 db_tr = dbch->top; 859 txloop: 860 xfer = STAILQ_FIRST(&dbch->xferq.q); 861 if(xfer == NULL){ 862 goto kick; 863 } 864 if(dbch->xferq.queued == 0 ){ 865 device_printf(sc->fc.dev, "TX queue empty\n"); 866 } 867 STAILQ_REMOVE_HEAD(&dbch->xferq.q, link); 868 db_tr->xfer = xfer; 869 xfer->state = FWXF_START; 870 871 fp = (struct fw_pkt *)xfer->send.buf; 872 tcode = fp->mode.common.tcode; 873 874 ohcifp = (volatile struct fwohci_txpkthdr *) db_tr->db[1].db.immed; 875 info = &tinfo[tcode]; 876 hdr_len = pl_off = info->hdr_len; 877 878 ld = &ohcifp->mode.ld[0]; 879 ld[0] = ld[1] = ld[2] = ld[3] = 0; 880 for( i = 0 ; i < pl_off ; i+= 4) 881 ld[i/4] = fp->mode.ld[i/4]; 882 883 ohcifp->mode.common.spd = xfer->spd & 0x7; 884 if (tcode == FWTCODE_STREAM ){ 885 hdr_len = 8; 886 ohcifp->mode.stream.len = fp->mode.stream.len; 887 } else if (tcode == FWTCODE_PHY) { 888 hdr_len = 12; 889 ld[1] = fp->mode.ld[1]; 890 ld[2] = fp->mode.ld[2]; 891 ohcifp->mode.common.spd = 0; 892 ohcifp->mode.common.tcode = FWOHCITCODE_PHY; 893 } else { 894 ohcifp->mode.asycomm.dst = fp->mode.hdr.dst; 895 ohcifp->mode.asycomm.srcbus = OHCI_ASYSRCBUS; 896 ohcifp->mode.asycomm.tlrt |= FWRETRY_X; 897 } 898 db = &db_tr->db[0]; 899 FWOHCI_DMA_WRITE(db->db.desc.cmd, 900 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | hdr_len); 901 FWOHCI_DMA_WRITE(db->db.desc.addr, 0); 902 FWOHCI_DMA_WRITE(db->db.desc.res, 0); 903 /* Specify bound timer of asy. responce */ 904 if(&sc->atrs == dbch){ 905 FWOHCI_DMA_WRITE(db->db.desc.res, 906 (OREAD(sc, OHCI_CYCLETIMER) >> 12) + (1 << 13)); 907 } 908 #if BYTE_ORDER == BIG_ENDIAN 909 if (tcode == FWTCODE_WREQQ || tcode == FWTCODE_RRESQ) 910 hdr_len = 12; 911 for (i = 0; i < hdr_len/4; i ++) 912 FWOHCI_DMA_WRITE(ld[i], ld[i]); 913 #endif 914 915 again: 916 db_tr->dbcnt = 2; 917 db = &db_tr->db[db_tr->dbcnt]; 918 pl_len = xfer->send.len - pl_off; 919 if (pl_len > 0) { 920 int err; 921 /* handle payload */ 922 if (xfer->mbuf == NULL) { 923 caddr_t pl_addr; 924 925 pl_addr = xfer->send.buf + pl_off; 926 err = bus_dmamap_load(dbch->dmat, db_tr->dma_map, 927 pl_addr, pl_len, 928 fwohci_execute_db, db_tr, 929 /*flags*/0); 930 } else { 931 /* XXX we can handle only 6 (=8-2) mbuf chains */ 932 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map, 933 xfer->mbuf, 934 fwohci_execute_db2, db_tr, 935 /* flags */0); 936 if (err == EFBIG) { 937 struct mbuf *m0; 938 939 if (firewire_debug) 940 device_printf(sc->fc.dev, "EFBIG.\n"); 941 m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 942 if (m0 != NULL) { 943 m_copydata(xfer->mbuf, 0, 944 xfer->mbuf->m_pkthdr.len, 945 mtod(m0, caddr_t)); 946 m0->m_len = m0->m_pkthdr.len = 947 xfer->mbuf->m_pkthdr.len; 948 m_freem(xfer->mbuf); 949 xfer->mbuf = m0; 950 goto again; 951 } 952 device_printf(sc->fc.dev, "m_getcl failed.\n"); 953 } 954 } 955 if (err) 956 printf("dmamap_load: err=%d\n", err); 957 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 958 BUS_DMASYNC_PREWRITE); 959 #if 0 /* OHCI_OUTPUT_MODE == 0 */ 960 for (i = 2; i < db_tr->dbcnt; i++) 961 FWOHCI_DMA_SET(db_tr->db[i].db.desc.cmd, 962 OHCI_OUTPUT_MORE); 963 #endif 964 } 965 if (maxdesc < db_tr->dbcnt) { 966 maxdesc = db_tr->dbcnt; 967 if (bootverbose) 968 device_printf(sc->fc.dev, "maxdesc: %d\n", maxdesc); 969 } 970 /* last db */ 971 LAST_DB(db_tr, db); 972 FWOHCI_DMA_SET(db->db.desc.cmd, 973 OHCI_OUTPUT_LAST | OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS); 974 FWOHCI_DMA_WRITE(db->db.desc.depend, 975 STAILQ_NEXT(db_tr, link)->bus_addr); 976 977 if(fsegment == -1 ) 978 fsegment = db_tr->dbcnt; 979 if (dbch->pdb_tr != NULL) { 980 LAST_DB(dbch->pdb_tr, db); 981 FWOHCI_DMA_SET(db->db.desc.depend, db_tr->dbcnt); 982 } 983 dbch->pdb_tr = db_tr; 984 db_tr = STAILQ_NEXT(db_tr, link); 985 if(db_tr != dbch->bottom){ 986 goto txloop; 987 } else { 988 device_printf(sc->fc.dev, "fwohci_start: lack of db_trq\n"); 989 dbch->flags |= FWOHCI_DBCH_FULL; 990 } 991 kick: 992 /* kick asy q */ 993 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 994 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 995 996 if(dbch->xferq.flag & FWXFERQ_RUNNING) { 997 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_WAKE); 998 } else { 999 if (bootverbose) 1000 device_printf(sc->fc.dev, "start AT DMA status=%x\n", 1001 OREAD(sc, OHCI_DMACTL(off))); 1002 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | fsegment); 1003 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 1004 dbch->xferq.flag |= FWXFERQ_RUNNING; 1005 } 1006 1007 dbch->top = db_tr; 1008 splx(s); 1009 return; 1010 } 1011 1012 static void 1013 fwohci_start_atq(struct firewire_comm *fc) 1014 { 1015 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1016 fwohci_start( sc, &(sc->atrq)); 1017 return; 1018 } 1019 1020 static void 1021 fwohci_start_ats(struct firewire_comm *fc) 1022 { 1023 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1024 fwohci_start( sc, &(sc->atrs)); 1025 return; 1026 } 1027 1028 void 1029 fwohci_txd(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1030 { 1031 int s, ch, err = 0; 1032 struct fwohcidb_tr *tr; 1033 volatile struct fwohcidb *db; 1034 struct fw_xfer *xfer; 1035 u_int32_t off; 1036 u_int stat, status; 1037 int packets; 1038 struct firewire_comm *fc = (struct firewire_comm *)sc; 1039 1040 if(&sc->atrq == dbch){ 1041 off = OHCI_ATQOFF; 1042 ch = ATRQ_CH; 1043 }else if(&sc->atrs == dbch){ 1044 off = OHCI_ATSOFF; 1045 ch = ATRS_CH; 1046 }else{ 1047 return; 1048 } 1049 s = splfw(); 1050 tr = dbch->bottom; 1051 packets = 0; 1052 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD); 1053 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE); 1054 while(dbch->xferq.queued > 0){ 1055 LAST_DB(tr, db); 1056 status = FWOHCI_DMA_READ(db->db.desc.res) >> OHCI_STATUS_SHIFT; 1057 if(!(status & OHCI_CNTL_DMA_ACTIVE)){ 1058 if (fc->status != FWBUSRESET) 1059 /* maybe out of order?? */ 1060 goto out; 1061 } 1062 bus_dmamap_sync(dbch->dmat, tr->dma_map, 1063 BUS_DMASYNC_POSTWRITE); 1064 bus_dmamap_unload(dbch->dmat, tr->dma_map); 1065 #if 1 1066 if (firewire_debug) 1067 dump_db(sc, ch); 1068 #endif 1069 if(status & OHCI_CNTL_DMA_DEAD) { 1070 /* Stop DMA */ 1071 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 1072 device_printf(sc->fc.dev, "force reset AT FIFO\n"); 1073 OWRITE(sc, OHCI_HCCCTLCLR, OHCI_HCC_LINKEN); 1074 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_LPS | OHCI_HCC_LINKEN); 1075 OWRITE(sc, OHCI_DMACTLCLR(off), OHCI_CNTL_DMA_RUN); 1076 } 1077 stat = status & FWOHCIEV_MASK; 1078 switch(stat){ 1079 case FWOHCIEV_ACKPEND: 1080 case FWOHCIEV_ACKCOMPL: 1081 err = 0; 1082 break; 1083 case FWOHCIEV_ACKBSA: 1084 case FWOHCIEV_ACKBSB: 1085 case FWOHCIEV_ACKBSX: 1086 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1087 err = EBUSY; 1088 break; 1089 case FWOHCIEV_FLUSHED: 1090 case FWOHCIEV_ACKTARD: 1091 device_printf(sc->fc.dev, "txd err=%2x %s\n", stat, fwohcicode[stat]); 1092 err = EAGAIN; 1093 break; 1094 case FWOHCIEV_MISSACK: 1095 case FWOHCIEV_UNDRRUN: 1096 case FWOHCIEV_OVRRUN: 1097 case FWOHCIEV_DESCERR: 1098 case FWOHCIEV_DTRDERR: 1099 case FWOHCIEV_TIMEOUT: 1100 case FWOHCIEV_TCODERR: 1101 case FWOHCIEV_UNKNOWN: 1102 case FWOHCIEV_ACKDERR: 1103 case FWOHCIEV_ACKTERR: 1104 default: 1105 device_printf(sc->fc.dev, "txd err=%2x %s\n", 1106 stat, fwohcicode[stat]); 1107 err = EINVAL; 1108 break; 1109 } 1110 if (tr->xfer != NULL) { 1111 xfer = tr->xfer; 1112 if (xfer->state == FWXF_RCVD) { 1113 #if 0 1114 if (firewire_debug) 1115 printf("already rcvd\n"); 1116 #endif 1117 fw_xfer_done(xfer); 1118 } else { 1119 xfer->state = FWXF_SENT; 1120 if (err == EBUSY && fc->status != FWBUSRESET) { 1121 xfer->state = FWXF_BUSY; 1122 xfer->resp = err; 1123 if (xfer->retry_req != NULL) 1124 xfer->retry_req(xfer); 1125 else { 1126 xfer->recv.len = 0; 1127 fw_xfer_done(xfer); 1128 } 1129 } else if (stat != FWOHCIEV_ACKPEND) { 1130 if (stat != FWOHCIEV_ACKCOMPL) 1131 xfer->state = FWXF_SENTERR; 1132 xfer->resp = err; 1133 xfer->recv.len = 0; 1134 fw_xfer_done(xfer); 1135 } 1136 } 1137 /* 1138 * The watchdog timer takes care of split 1139 * transcation timeout for ACKPEND case. 1140 */ 1141 } else { 1142 printf("this shouldn't happen\n"); 1143 } 1144 dbch->xferq.queued --; 1145 tr->xfer = NULL; 1146 1147 packets ++; 1148 tr = STAILQ_NEXT(tr, link); 1149 dbch->bottom = tr; 1150 if (dbch->bottom == dbch->top) { 1151 /* we reaches the end of context program */ 1152 if (firewire_debug && dbch->xferq.queued > 0) 1153 printf("queued > 0\n"); 1154 break; 1155 } 1156 } 1157 out: 1158 if ((dbch->flags & FWOHCI_DBCH_FULL) && packets > 0) { 1159 printf("make free slot\n"); 1160 dbch->flags &= ~FWOHCI_DBCH_FULL; 1161 fwohci_start(sc, dbch); 1162 } 1163 splx(s); 1164 } 1165 1166 static void 1167 fwohci_db_free(struct fwohci_dbch *dbch) 1168 { 1169 struct fwohcidb_tr *db_tr; 1170 int idb; 1171 1172 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1173 return; 1174 1175 for(db_tr = STAILQ_FIRST(&dbch->db_trq), idb = 0; idb < dbch->ndb; 1176 db_tr = STAILQ_NEXT(db_tr, link), idb++){ 1177 if ((dbch->xferq.flag & FWXFERQ_EXTBUF) == 0 && 1178 db_tr->buf != NULL) { 1179 fwdma_free_size(dbch->dmat, db_tr->dma_map, 1180 db_tr->buf, dbch->xferq.psize); 1181 db_tr->buf = NULL; 1182 } else if (db_tr->dma_map != NULL) 1183 bus_dmamap_destroy(dbch->dmat, db_tr->dma_map); 1184 } 1185 dbch->ndb = 0; 1186 db_tr = STAILQ_FIRST(&dbch->db_trq); 1187 fwdma_free_multiseg(dbch->am); 1188 free(db_tr, M_FW); 1189 STAILQ_INIT(&dbch->db_trq); 1190 dbch->flags &= ~FWOHCI_DBCH_INIT; 1191 } 1192 1193 static void 1194 fwohci_db_init(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1195 { 1196 int idb; 1197 struct fwohcidb_tr *db_tr; 1198 1199 if ((dbch->flags & FWOHCI_DBCH_INIT) != 0) 1200 goto out; 1201 1202 /* create dma_tag for buffers */ 1203 #define MAX_REQCOUNT 0xffff 1204 if (bus_dma_tag_create(/*parent*/ sc->fc.dmat, 1205 /*alignment*/ 1, /*boundary*/ 0, 1206 /*lowaddr*/ BUS_SPACE_MAXADDR_32BIT, 1207 /*highaddr*/ BUS_SPACE_MAXADDR, 1208 /*filter*/NULL, /*filterarg*/NULL, 1209 /*maxsize*/ dbch->xferq.psize, 1210 /*nsegments*/ dbch->ndesc > 3 ? dbch->ndesc - 2 : 1, 1211 /*maxsegsz*/ MAX_REQCOUNT, 1212 /*flags*/ 0, 1213 #if __FreeBSD_version >= 501102 1214 /*lockfunc*/busdma_lock_mutex, 1215 /*lockarg*/&Giant, 1216 #endif 1217 &dbch->dmat)) 1218 return; 1219 1220 /* allocate DB entries and attach one to each DMA channels */ 1221 /* DB entry must start at 16 bytes bounary. */ 1222 STAILQ_INIT(&dbch->db_trq); 1223 db_tr = (struct fwohcidb_tr *) 1224 malloc(sizeof(struct fwohcidb_tr) * dbch->ndb, 1225 M_FW, M_WAITOK | M_ZERO); 1226 if(db_tr == NULL){ 1227 printf("fwohci_db_init: malloc(1) failed\n"); 1228 return; 1229 } 1230 1231 #define DB_SIZE(x) (sizeof(struct fwohcidb) * (x)->ndesc) 1232 dbch->am = fwdma_malloc_multiseg(&sc->fc, DB_SIZE(dbch), 1233 DB_SIZE(dbch), dbch->ndb, BUS_DMA_WAITOK); 1234 if (dbch->am == NULL) { 1235 printf("fwohci_db_init: fwdma_malloc_multiseg failed\n"); 1236 return; 1237 } 1238 /* Attach DB to DMA ch. */ 1239 for(idb = 0 ; idb < dbch->ndb ; idb++){ 1240 db_tr->dbcnt = 0; 1241 db_tr->db = (struct fwohcidb *)fwdma_v_addr(dbch->am, idb); 1242 db_tr->bus_addr = fwdma_bus_addr(dbch->am, idb); 1243 /* create dmamap for buffers */ 1244 /* XXX do we need 4bytes alignment tag? */ 1245 /* XXX don't alloc dma_map for AR */ 1246 if (bus_dmamap_create(dbch->dmat, 0, &db_tr->dma_map) != 0) { 1247 printf("bus_dmamap_create failed\n"); 1248 dbch->flags = FWOHCI_DBCH_INIT; /* XXX fake */ 1249 fwohci_db_free(dbch); 1250 return; 1251 } 1252 STAILQ_INSERT_TAIL(&dbch->db_trq, db_tr, link); 1253 if (dbch->xferq.flag & FWXFERQ_EXTBUF) { 1254 if (idb % dbch->xferq.bnpacket == 0) 1255 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1256 ].start = (caddr_t)db_tr; 1257 if ((idb + 1) % dbch->xferq.bnpacket == 0) 1258 dbch->xferq.bulkxfer[idb / dbch->xferq.bnpacket 1259 ].end = (caddr_t)db_tr; 1260 } 1261 db_tr++; 1262 } 1263 STAILQ_LAST(&dbch->db_trq, fwohcidb_tr,link)->link.stqe_next 1264 = STAILQ_FIRST(&dbch->db_trq); 1265 out: 1266 dbch->xferq.queued = 0; 1267 dbch->pdb_tr = NULL; 1268 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1269 dbch->bottom = dbch->top; 1270 dbch->flags = FWOHCI_DBCH_INIT; 1271 } 1272 1273 static int 1274 fwohci_itx_disable(struct firewire_comm *fc, int dmach) 1275 { 1276 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1277 int sleepch; 1278 1279 OWRITE(sc, OHCI_ITCTLCLR(dmach), 1280 OHCI_CNTL_DMA_RUN | OHCI_CNTL_CYCMATCH_S); 1281 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1282 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1283 /* XXX we cannot free buffers until the DMA really stops */ 1284 tsleep((void *)&sleepch, FWPRI, "fwitxd", hz); 1285 fwohci_db_free(&sc->it[dmach]); 1286 sc->it[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1287 return 0; 1288 } 1289 1290 static int 1291 fwohci_irx_disable(struct firewire_comm *fc, int dmach) 1292 { 1293 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1294 int sleepch; 1295 1296 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1297 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1298 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1299 /* XXX we cannot free buffers until the DMA really stops */ 1300 tsleep((void *)&sleepch, FWPRI, "fwirxd", hz); 1301 fwohci_db_free(&sc->ir[dmach]); 1302 sc->ir[dmach].xferq.flag &= ~FWXFERQ_RUNNING; 1303 return 0; 1304 } 1305 1306 #if BYTE_ORDER == BIG_ENDIAN 1307 static void 1308 fwohci_irx_post (struct firewire_comm *fc , u_int32_t *qld) 1309 { 1310 qld[0] = FWOHCI_DMA_READ(qld[0]); 1311 return; 1312 } 1313 #endif 1314 1315 static int 1316 fwohci_tx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1317 { 1318 int err = 0; 1319 int idb, z, i, dmach = 0, ldesc; 1320 u_int32_t off = NULL; 1321 struct fwohcidb_tr *db_tr; 1322 volatile struct fwohcidb *db; 1323 1324 if(!(dbch->xferq.flag & FWXFERQ_EXTBUF)){ 1325 err = EINVAL; 1326 return err; 1327 } 1328 z = dbch->ndesc; 1329 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1330 if( &sc->it[dmach] == dbch){ 1331 off = OHCI_ITOFF(dmach); 1332 break; 1333 } 1334 } 1335 if(off == NULL){ 1336 err = EINVAL; 1337 return err; 1338 } 1339 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1340 return err; 1341 dbch->xferq.flag |= FWXFERQ_RUNNING; 1342 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1343 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1344 } 1345 db_tr = dbch->top; 1346 for (idb = 0; idb < dbch->ndb; idb ++) { 1347 fwohci_add_tx_buf(dbch, db_tr, idb); 1348 if(STAILQ_NEXT(db_tr, link) == NULL){ 1349 break; 1350 } 1351 db = db_tr->db; 1352 ldesc = db_tr->dbcnt - 1; 1353 FWOHCI_DMA_WRITE(db[0].db.desc.depend, 1354 STAILQ_NEXT(db_tr, link)->bus_addr | z); 1355 db[ldesc].db.desc.depend = db[0].db.desc.depend; 1356 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1357 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1358 FWOHCI_DMA_SET( 1359 db[ldesc].db.desc.cmd, 1360 OHCI_INTERRUPT_ALWAYS); 1361 /* OHCI 1.1 and above */ 1362 FWOHCI_DMA_SET( 1363 db[0].db.desc.cmd, 1364 OHCI_INTERRUPT_ALWAYS); 1365 } 1366 } 1367 db_tr = STAILQ_NEXT(db_tr, link); 1368 } 1369 FWOHCI_DMA_CLEAR( 1370 dbch->bottom->db[dbch->bottom->dbcnt - 1].db.desc.depend, 0xf); 1371 return err; 1372 } 1373 1374 static int 1375 fwohci_rx_enable(struct fwohci_softc *sc, struct fwohci_dbch *dbch) 1376 { 1377 int err = 0; 1378 int idb, z, i, dmach = 0, ldesc; 1379 u_int32_t off = NULL; 1380 struct fwohcidb_tr *db_tr; 1381 volatile struct fwohcidb *db; 1382 1383 z = dbch->ndesc; 1384 if(&sc->arrq == dbch){ 1385 off = OHCI_ARQOFF; 1386 }else if(&sc->arrs == dbch){ 1387 off = OHCI_ARSOFF; 1388 }else{ 1389 for(dmach = 0 ; dmach < sc->fc.nisodma ; dmach++){ 1390 if( &sc->ir[dmach] == dbch){ 1391 off = OHCI_IROFF(dmach); 1392 break; 1393 } 1394 } 1395 } 1396 if(off == NULL){ 1397 err = EINVAL; 1398 return err; 1399 } 1400 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1401 if(dbch->xferq.flag & FWXFERQ_RUNNING) 1402 return err; 1403 }else{ 1404 if(dbch->xferq.flag & FWXFERQ_RUNNING){ 1405 err = EBUSY; 1406 return err; 1407 } 1408 } 1409 dbch->xferq.flag |= FWXFERQ_RUNNING; 1410 dbch->top = STAILQ_FIRST(&dbch->db_trq); 1411 for( i = 0, dbch->bottom = dbch->top; i < (dbch->ndb - 1); i++){ 1412 dbch->bottom = STAILQ_NEXT(dbch->bottom, link); 1413 } 1414 db_tr = dbch->top; 1415 for (idb = 0; idb < dbch->ndb; idb ++) { 1416 fwohci_add_rx_buf(dbch, db_tr, idb, &sc->dummy_dma); 1417 if (STAILQ_NEXT(db_tr, link) == NULL) 1418 break; 1419 db = db_tr->db; 1420 ldesc = db_tr->dbcnt - 1; 1421 FWOHCI_DMA_WRITE(db[ldesc].db.desc.depend, 1422 STAILQ_NEXT(db_tr, link)->bus_addr | z); 1423 if(dbch->xferq.flag & FWXFERQ_EXTBUF){ 1424 if(((idb + 1 ) % dbch->xferq.bnpacket) == 0){ 1425 FWOHCI_DMA_SET( 1426 db[ldesc].db.desc.cmd, 1427 OHCI_INTERRUPT_ALWAYS); 1428 FWOHCI_DMA_CLEAR( 1429 db[ldesc].db.desc.depend, 1430 0xf); 1431 } 1432 } 1433 db_tr = STAILQ_NEXT(db_tr, link); 1434 } 1435 FWOHCI_DMA_CLEAR( 1436 dbch->bottom->db[db_tr->dbcnt - 1].db.desc.depend, 0xf); 1437 dbch->buf_offset = 0; 1438 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1439 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1440 if(dbch->xferq.flag & FWXFERQ_STREAM){ 1441 return err; 1442 }else{ 1443 OWRITE(sc, OHCI_DMACMD(off), dbch->top->bus_addr | z); 1444 } 1445 OWRITE(sc, OHCI_DMACTL(off), OHCI_CNTL_DMA_RUN); 1446 return err; 1447 } 1448 1449 static int 1450 fwohci_next_cycle(struct firewire_comm *fc, int cycle_now) 1451 { 1452 int sec, cycle, cycle_match; 1453 1454 cycle = cycle_now & 0x1fff; 1455 sec = cycle_now >> 13; 1456 #define CYCLE_MOD 0x10 1457 #if 1 1458 #define CYCLE_DELAY 8 /* min delay to start DMA */ 1459 #else 1460 #define CYCLE_DELAY 7000 /* min delay to start DMA */ 1461 #endif 1462 cycle = cycle + CYCLE_DELAY; 1463 if (cycle >= 8000) { 1464 sec ++; 1465 cycle -= 8000; 1466 } 1467 cycle = roundup2(cycle, CYCLE_MOD); 1468 if (cycle >= 8000) { 1469 sec ++; 1470 if (cycle == 8000) 1471 cycle = 0; 1472 else 1473 cycle = CYCLE_MOD; 1474 } 1475 cycle_match = ((sec << 13) | cycle) & 0x7ffff; 1476 1477 return(cycle_match); 1478 } 1479 1480 static int 1481 fwohci_itxbuf_enable(struct firewire_comm *fc, int dmach) 1482 { 1483 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1484 int err = 0; 1485 unsigned short tag, ich; 1486 struct fwohci_dbch *dbch; 1487 int cycle_match, cycle_now, s, ldesc; 1488 u_int32_t stat; 1489 struct fw_bulkxfer *first, *chunk, *prev; 1490 struct fw_xferq *it; 1491 1492 dbch = &sc->it[dmach]; 1493 it = &dbch->xferq; 1494 1495 tag = (it->flag >> 6) & 3; 1496 ich = it->flag & 0x3f; 1497 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) { 1498 dbch->ndb = it->bnpacket * it->bnchunk; 1499 dbch->ndesc = 3; 1500 fwohci_db_init(sc, dbch); 1501 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1502 return ENOMEM; 1503 err = fwohci_tx_enable(sc, dbch); 1504 } 1505 if(err) 1506 return err; 1507 1508 ldesc = dbch->ndesc - 1; 1509 s = splfw(); 1510 prev = STAILQ_LAST(&it->stdma, fw_bulkxfer, link); 1511 while ((chunk = STAILQ_FIRST(&it->stvalid)) != NULL) { 1512 volatile struct fwohcidb *db; 1513 1514 fwdma_sync_multiseg(it->buf, chunk->poffset, it->bnpacket, 1515 BUS_DMASYNC_PREWRITE); 1516 fwohci_txbufdb(sc, dmach, chunk); 1517 if (prev != NULL) { 1518 db = ((struct fwohcidb_tr *)(prev->end))->db; 1519 #if 0 /* XXX necessary? */ 1520 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, 1521 OHCI_BRANCH_ALWAYS); 1522 #endif 1523 #if 0 /* if bulkxfer->npacket changes */ 1524 db[ldesc].db.desc.depend = db[0].db.desc.depend = 1525 ((struct fwohcidb_tr *) 1526 (chunk->start))->bus_addr | dbch->ndesc; 1527 #else 1528 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc); 1529 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc); 1530 #endif 1531 } 1532 STAILQ_REMOVE_HEAD(&it->stvalid, link); 1533 STAILQ_INSERT_TAIL(&it->stdma, chunk, link); 1534 prev = chunk; 1535 } 1536 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1537 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1538 splx(s); 1539 stat = OREAD(sc, OHCI_ITCTL(dmach)); 1540 if (firewire_debug && (stat & OHCI_CNTL_CYCMATCH_S)) 1541 printf("stat 0x%x\n", stat); 1542 1543 if (stat & (OHCI_CNTL_DMA_ACTIVE | OHCI_CNTL_CYCMATCH_S)) 1544 return 0; 1545 1546 #if 0 1547 OWRITE(sc, OHCI_ITCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1548 #endif 1549 OWRITE(sc, OHCI_IT_MASKCLR, 1 << dmach); 1550 OWRITE(sc, OHCI_IT_STATCLR, 1 << dmach); 1551 OWRITE(sc, OHCI_IT_MASK, 1 << dmach); 1552 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IT); 1553 1554 first = STAILQ_FIRST(&it->stdma); 1555 OWRITE(sc, OHCI_ITCMD(dmach), 1556 ((struct fwohcidb_tr *)(first->start))->bus_addr | dbch->ndesc); 1557 if (firewire_debug) { 1558 printf("fwohci_itxbuf_enable: kick 0x%08x\n", stat); 1559 #if 1 1560 dump_dma(sc, ITX_CH + dmach); 1561 #endif 1562 } 1563 if ((stat & OHCI_CNTL_DMA_RUN) == 0) { 1564 #if 1 1565 /* Don't start until all chunks are buffered */ 1566 if (STAILQ_FIRST(&it->stfree) != NULL) 1567 goto out; 1568 #endif 1569 #if 1 1570 /* Clear cycle match counter bits */ 1571 OWRITE(sc, OHCI_ITCTLCLR(dmach), 0xffff0000); 1572 1573 /* 2bit second + 13bit cycle */ 1574 cycle_now = (fc->cyctimer(fc) >> 12) & 0x7fff; 1575 cycle_match = fwohci_next_cycle(fc, cycle_now); 1576 1577 OWRITE(sc, OHCI_ITCTL(dmach), 1578 OHCI_CNTL_CYCMATCH_S | (cycle_match << 16) 1579 | OHCI_CNTL_DMA_RUN); 1580 #else 1581 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_RUN); 1582 #endif 1583 if (firewire_debug) { 1584 printf("cycle_match: 0x%04x->0x%04x\n", 1585 cycle_now, cycle_match); 1586 dump_dma(sc, ITX_CH + dmach); 1587 dump_db(sc, ITX_CH + dmach); 1588 } 1589 } else if ((stat & OHCI_CNTL_CYCMATCH_S) == 0) { 1590 device_printf(sc->fc.dev, 1591 "IT DMA underrun (0x%08x)\n", stat); 1592 OWRITE(sc, OHCI_ITCTL(dmach), OHCI_CNTL_DMA_WAKE); 1593 } 1594 out: 1595 return err; 1596 } 1597 1598 static int 1599 fwohci_irx_enable(struct firewire_comm *fc, int dmach) 1600 { 1601 struct fwohci_softc *sc = (struct fwohci_softc *)fc; 1602 int err = 0, s, ldesc; 1603 unsigned short tag, ich; 1604 u_int32_t stat; 1605 struct fwohci_dbch *dbch; 1606 struct fwohcidb_tr *db_tr; 1607 struct fw_bulkxfer *first, *prev, *chunk; 1608 struct fw_xferq *ir; 1609 1610 dbch = &sc->ir[dmach]; 1611 ir = &dbch->xferq; 1612 1613 if ((ir->flag & FWXFERQ_RUNNING) == 0) { 1614 tag = (ir->flag >> 6) & 3; 1615 ich = ir->flag & 0x3f; 1616 OWRITE(sc, OHCI_IRMATCH(dmach), tagbit[tag] | ich); 1617 1618 ir->queued = 0; 1619 dbch->ndb = ir->bnpacket * ir->bnchunk; 1620 dbch->ndesc = 2; 1621 fwohci_db_init(sc, dbch); 1622 if ((dbch->flags & FWOHCI_DBCH_INIT) == 0) 1623 return ENOMEM; 1624 err = fwohci_rx_enable(sc, dbch); 1625 } 1626 if(err) 1627 return err; 1628 1629 first = STAILQ_FIRST(&ir->stfree); 1630 if (first == NULL) { 1631 device_printf(fc->dev, "IR DMA no free chunk\n"); 1632 return 0; 1633 } 1634 1635 ldesc = dbch->ndesc - 1; 1636 s = splfw(); 1637 prev = STAILQ_LAST(&ir->stdma, fw_bulkxfer, link); 1638 while ((chunk = STAILQ_FIRST(&ir->stfree)) != NULL) { 1639 volatile struct fwohcidb *db; 1640 1641 #if 1 /* XXX for if_fwe */ 1642 if (chunk->mbuf != NULL) { 1643 db_tr = (struct fwohcidb_tr *)(chunk->start); 1644 db_tr->dbcnt = 1; 1645 err = bus_dmamap_load_mbuf(dbch->dmat, db_tr->dma_map, 1646 chunk->mbuf, fwohci_execute_db2, db_tr, 1647 /* flags */0); 1648 FWOHCI_DMA_SET(db_tr->db[1].db.desc.cmd, 1649 OHCI_UPDATE | OHCI_INPUT_LAST | 1650 OHCI_INTERRUPT_ALWAYS | OHCI_BRANCH_ALWAYS); 1651 } 1652 #endif 1653 db = ((struct fwohcidb_tr *)(chunk->end))->db; 1654 FWOHCI_DMA_WRITE(db[ldesc].db.desc.res, 0); 1655 FWOHCI_DMA_CLEAR(db[ldesc].db.desc.depend, 0xf); 1656 if (prev != NULL) { 1657 db = ((struct fwohcidb_tr *)(prev->end))->db; 1658 FWOHCI_DMA_SET(db[ldesc].db.desc.depend, dbch->ndesc); 1659 } 1660 STAILQ_REMOVE_HEAD(&ir->stfree, link); 1661 STAILQ_INSERT_TAIL(&ir->stdma, chunk, link); 1662 prev = chunk; 1663 } 1664 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 1665 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREREAD); 1666 splx(s); 1667 stat = OREAD(sc, OHCI_IRCTL(dmach)); 1668 if (stat & OHCI_CNTL_DMA_ACTIVE) 1669 return 0; 1670 if (stat & OHCI_CNTL_DMA_RUN) { 1671 OWRITE(sc, OHCI_IRCTLCLR(dmach), OHCI_CNTL_DMA_RUN); 1672 device_printf(sc->fc.dev, "IR DMA overrun (0x%08x)\n", stat); 1673 } 1674 1675 if (firewire_debug) 1676 printf("start IR DMA 0x%x\n", stat); 1677 OWRITE(sc, OHCI_IR_MASKCLR, 1 << dmach); 1678 OWRITE(sc, OHCI_IR_STATCLR, 1 << dmach); 1679 OWRITE(sc, OHCI_IR_MASK, 1 << dmach); 1680 OWRITE(sc, OHCI_IRCTLCLR(dmach), 0xf0000000); 1681 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_ISOHDR); 1682 OWRITE(sc, OHCI_IRCMD(dmach), 1683 ((struct fwohcidb_tr *)(first->start))->bus_addr 1684 | dbch->ndesc); 1685 OWRITE(sc, OHCI_IRCTL(dmach), OHCI_CNTL_DMA_RUN); 1686 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_DMA_IR); 1687 #if 0 1688 dump_db(sc, IRX_CH + dmach); 1689 #endif 1690 return err; 1691 } 1692 1693 int 1694 fwohci_stop(struct fwohci_softc *sc, device_t dev) 1695 { 1696 u_int i; 1697 1698 /* Now stopping all DMA channel */ 1699 OWRITE(sc, OHCI_ARQCTLCLR, OHCI_CNTL_DMA_RUN); 1700 OWRITE(sc, OHCI_ARSCTLCLR, OHCI_CNTL_DMA_RUN); 1701 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1702 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1703 1704 for( i = 0 ; i < sc->fc.nisodma ; i ++ ){ 1705 OWRITE(sc, OHCI_IRCTLCLR(i), OHCI_CNTL_DMA_RUN); 1706 OWRITE(sc, OHCI_ITCTLCLR(i), OHCI_CNTL_DMA_RUN); 1707 } 1708 1709 /* FLUSH FIFO and reset Transmitter/Reciever */ 1710 OWRITE(sc, OHCI_HCCCTL, OHCI_HCC_RESET); 1711 1712 /* Stop interrupt */ 1713 OWRITE(sc, FWOHCI_INTMASKCLR, 1714 OHCI_INT_EN | OHCI_INT_ERR | OHCI_INT_PHY_SID 1715 | OHCI_INT_PHY_INT 1716 | OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS 1717 | OHCI_INT_DMA_PRRQ | OHCI_INT_DMA_PRRS 1718 | OHCI_INT_DMA_ARRQ | OHCI_INT_DMA_ARRS 1719 | OHCI_INT_PHY_BUS_R); 1720 1721 if (sc->fc.arq !=0 && sc->fc.arq->maxq > 0) 1722 fw_drain_txq(&sc->fc); 1723 1724 /* XXX Link down? Bus reset? */ 1725 return 0; 1726 } 1727 1728 int 1729 fwohci_resume(struct fwohci_softc *sc, device_t dev) 1730 { 1731 int i; 1732 struct fw_xferq *ir; 1733 struct fw_bulkxfer *chunk; 1734 1735 fwohci_reset(sc, dev); 1736 /* XXX resume isochronus receive automatically. (how about TX?) */ 1737 for(i = 0; i < sc->fc.nisodma; i ++) { 1738 ir = &sc->ir[i].xferq; 1739 if((ir->flag & FWXFERQ_RUNNING) != 0) { 1740 device_printf(sc->fc.dev, 1741 "resume iso receive ch: %d\n", i); 1742 ir->flag &= ~FWXFERQ_RUNNING; 1743 /* requeue stdma to stfree */ 1744 while((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) { 1745 STAILQ_REMOVE_HEAD(&ir->stdma, link); 1746 STAILQ_INSERT_TAIL(&ir->stfree, chunk, link); 1747 } 1748 sc->fc.irx_enable(&sc->fc, i); 1749 } 1750 } 1751 1752 bus_generic_resume(dev); 1753 sc->fc.ibr(&sc->fc); 1754 return 0; 1755 } 1756 1757 #define ACK_ALL 1758 static void 1759 fwohci_intr_body(struct fwohci_softc *sc, u_int32_t stat, int count) 1760 { 1761 u_int32_t irstat, itstat; 1762 u_int i; 1763 struct firewire_comm *fc = (struct firewire_comm *)sc; 1764 1765 #ifdef OHCI_DEBUG 1766 if(stat & OREAD(sc, FWOHCI_INTMASK)) 1767 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", 1768 stat & OHCI_INT_EN ? "DMA_EN ":"", 1769 stat & OHCI_INT_PHY_REG ? "PHY_REG ":"", 1770 stat & OHCI_INT_CYC_LONG ? "CYC_LONG ":"", 1771 stat & OHCI_INT_ERR ? "INT_ERR ":"", 1772 stat & OHCI_INT_CYC_ERR ? "CYC_ERR ":"", 1773 stat & OHCI_INT_CYC_LOST ? "CYC_LOST ":"", 1774 stat & OHCI_INT_CYC_64SECOND ? "CYC_64SECOND ":"", 1775 stat & OHCI_INT_CYC_START ? "CYC_START ":"", 1776 stat & OHCI_INT_PHY_INT ? "PHY_INT ":"", 1777 stat & OHCI_INT_PHY_BUS_R ? "BUS_RESET ":"", 1778 stat & OHCI_INT_PHY_SID ? "SID ":"", 1779 stat & OHCI_INT_LR_ERR ? "DMA_LR_ERR ":"", 1780 stat & OHCI_INT_PW_ERR ? "DMA_PW_ERR ":"", 1781 stat & OHCI_INT_DMA_IR ? "DMA_IR ":"", 1782 stat & OHCI_INT_DMA_IT ? "DMA_IT " :"", 1783 stat & OHCI_INT_DMA_PRRS ? "DMA_PRRS " :"", 1784 stat & OHCI_INT_DMA_PRRQ ? "DMA_PRRQ " :"", 1785 stat & OHCI_INT_DMA_ARRS ? "DMA_ARRS " :"", 1786 stat & OHCI_INT_DMA_ARRQ ? "DMA_ARRQ " :"", 1787 stat & OHCI_INT_DMA_ATRS ? "DMA_ATRS " :"", 1788 stat & OHCI_INT_DMA_ATRQ ? "DMA_ATRQ " :"", 1789 stat, OREAD(sc, FWOHCI_INTMASK) 1790 ); 1791 #endif 1792 /* Bus reset */ 1793 if(stat & OHCI_INT_PHY_BUS_R ){ 1794 if (fc->status == FWBUSRESET) 1795 goto busresetout; 1796 /* Disable bus reset interrupt until sid recv. */ 1797 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_PHY_BUS_R); 1798 1799 device_printf(fc->dev, "BUS reset\n"); 1800 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_CYC_LOST); 1801 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCSRC); 1802 1803 OWRITE(sc, OHCI_ATQCTLCLR, OHCI_CNTL_DMA_RUN); 1804 sc->atrq.xferq.flag &= ~FWXFERQ_RUNNING; 1805 OWRITE(sc, OHCI_ATSCTLCLR, OHCI_CNTL_DMA_RUN); 1806 sc->atrs.xferq.flag &= ~FWXFERQ_RUNNING; 1807 1808 #ifndef ACK_ALL 1809 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_BUS_R); 1810 #endif 1811 fw_busreset(fc); 1812 OWRITE(sc, OHCI_CROMHDR, ntohl(sc->fc.config_rom[0])); 1813 OWRITE(sc, OHCI_BUS_OPT, ntohl(sc->fc.config_rom[2])); 1814 } 1815 busresetout: 1816 if((stat & OHCI_INT_DMA_IR )){ 1817 #ifndef ACK_ALL 1818 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IR); 1819 #endif 1820 #if __FreeBSD_version >= 500000 1821 irstat = atomic_readandclear_int(&sc->irstat); 1822 #else 1823 irstat = sc->irstat; 1824 sc->irstat = 0; 1825 #endif 1826 for(i = 0; i < fc->nisodma ; i++){ 1827 struct fwohci_dbch *dbch; 1828 1829 if((irstat & (1 << i)) != 0){ 1830 dbch = &sc->ir[i]; 1831 if ((dbch->xferq.flag & FWXFERQ_OPEN) == 0) { 1832 device_printf(sc->fc.dev, 1833 "dma(%d) not active\n", i); 1834 continue; 1835 } 1836 fwohci_rbuf_update(sc, i); 1837 } 1838 } 1839 } 1840 if((stat & OHCI_INT_DMA_IT )){ 1841 #ifndef ACK_ALL 1842 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_IT); 1843 #endif 1844 #if __FreeBSD_version >= 500000 1845 itstat = atomic_readandclear_int(&sc->itstat); 1846 #else 1847 itstat = sc->itstat; 1848 sc->itstat = 0; 1849 #endif 1850 for(i = 0; i < fc->nisodma ; i++){ 1851 if((itstat & (1 << i)) != 0){ 1852 fwohci_tbuf_update(sc, i); 1853 } 1854 } 1855 } 1856 if((stat & OHCI_INT_DMA_PRRS )){ 1857 #ifndef ACK_ALL 1858 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRS); 1859 #endif 1860 #if 0 1861 dump_dma(sc, ARRS_CH); 1862 dump_db(sc, ARRS_CH); 1863 #endif 1864 fwohci_arcv(sc, &sc->arrs, count); 1865 } 1866 if((stat & OHCI_INT_DMA_PRRQ )){ 1867 #ifndef ACK_ALL 1868 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_PRRQ); 1869 #endif 1870 #if 0 1871 dump_dma(sc, ARRQ_CH); 1872 dump_db(sc, ARRQ_CH); 1873 #endif 1874 fwohci_arcv(sc, &sc->arrq, count); 1875 } 1876 if(stat & OHCI_INT_PHY_SID){ 1877 u_int32_t *buf, node_id; 1878 int plen; 1879 1880 #ifndef ACK_ALL 1881 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_SID); 1882 #endif 1883 /* Enable bus reset interrupt */ 1884 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_PHY_BUS_R); 1885 /* Allow async. request to us */ 1886 OWRITE(sc, OHCI_AREQHI, 1 << 31); 1887 /* XXX insecure ?? */ 1888 OWRITE(sc, OHCI_PREQHI, 0x7fffffff); 1889 OWRITE(sc, OHCI_PREQLO, 0xffffffff); 1890 OWRITE(sc, OHCI_PREQUPPER, 0x10000); 1891 /* Set ATRetries register */ 1892 OWRITE(sc, OHCI_ATRETRY, 1<<(13+16) | 0xfff); 1893 /* 1894 ** Checking whether the node is root or not. If root, turn on 1895 ** cycle master. 1896 */ 1897 node_id = OREAD(sc, FWOHCI_NODEID); 1898 plen = OREAD(sc, OHCI_SID_CNT); 1899 1900 device_printf(fc->dev, "node_id=0x%08x, gen=%d, ", 1901 node_id, (plen >> 16) & 0xff); 1902 if (!(node_id & OHCI_NODE_VALID)) { 1903 printf("Bus reset failure\n"); 1904 goto sidout; 1905 } 1906 if (node_id & OHCI_NODE_ROOT) { 1907 printf("CYCLEMASTER mode\n"); 1908 OWRITE(sc, OHCI_LNKCTL, 1909 OHCI_CNTL_CYCMTR | OHCI_CNTL_CYCTIMER); 1910 } else { 1911 printf("non CYCLEMASTER mode\n"); 1912 OWRITE(sc, OHCI_LNKCTLCLR, OHCI_CNTL_CYCMTR); 1913 OWRITE(sc, OHCI_LNKCTL, OHCI_CNTL_CYCTIMER); 1914 } 1915 fc->nodeid = node_id & 0x3f; 1916 1917 if (plen & OHCI_SID_ERR) { 1918 device_printf(fc->dev, "SID Error\n"); 1919 goto sidout; 1920 } 1921 plen &= OHCI_SID_CNT_MASK; 1922 if (plen < 4 || plen > OHCI_SIDSIZE) { 1923 device_printf(fc->dev, "invalid SID len = %d\n", plen); 1924 goto sidout; 1925 } 1926 plen -= 4; /* chop control info */ 1927 buf = (u_int32_t *)malloc(OHCI_SIDSIZE, M_FW, M_NOWAIT); 1928 if (buf == NULL) { 1929 device_printf(fc->dev, "malloc failed\n"); 1930 goto sidout; 1931 } 1932 for (i = 0; i < plen / 4; i ++) 1933 buf[i] = FWOHCI_DMA_READ(sc->sid_buf[i+1]); 1934 #if 1 1935 /* pending all pre-bus_reset packets */ 1936 fwohci_txd(sc, &sc->atrq); 1937 fwohci_txd(sc, &sc->atrs); 1938 fwohci_arcv(sc, &sc->arrs, -1); 1939 fwohci_arcv(sc, &sc->arrq, -1); 1940 fw_drain_txq(fc); 1941 #endif 1942 fw_sidrcv(fc, buf, plen); 1943 free(buf, M_FW); 1944 } 1945 sidout: 1946 if((stat & OHCI_INT_DMA_ATRQ )){ 1947 #ifndef ACK_ALL 1948 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRQ); 1949 #endif 1950 fwohci_txd(sc, &(sc->atrq)); 1951 } 1952 if((stat & OHCI_INT_DMA_ATRS )){ 1953 #ifndef ACK_ALL 1954 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_DMA_ATRS); 1955 #endif 1956 fwohci_txd(sc, &(sc->atrs)); 1957 } 1958 if((stat & OHCI_INT_PW_ERR )){ 1959 #ifndef ACK_ALL 1960 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PW_ERR); 1961 #endif 1962 device_printf(fc->dev, "posted write error\n"); 1963 } 1964 if((stat & OHCI_INT_ERR )){ 1965 #ifndef ACK_ALL 1966 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_ERR); 1967 #endif 1968 device_printf(fc->dev, "unrecoverable error\n"); 1969 } 1970 if((stat & OHCI_INT_PHY_INT)) { 1971 #ifndef ACK_ALL 1972 OWRITE(sc, FWOHCI_INTSTATCLR, OHCI_INT_PHY_INT); 1973 #endif 1974 device_printf(fc->dev, "phy int\n"); 1975 } 1976 1977 return; 1978 } 1979 1980 #if FWOHCI_TASKQUEUE 1981 static void 1982 fwohci_complete(void *arg, int pending) 1983 { 1984 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 1985 u_int32_t stat; 1986 1987 again: 1988 stat = atomic_readandclear_int(&sc->intstat); 1989 if (stat) 1990 fwohci_intr_body(sc, stat, -1); 1991 else 1992 return; 1993 goto again; 1994 } 1995 #endif 1996 1997 static u_int32_t 1998 fwochi_check_stat(struct fwohci_softc *sc) 1999 { 2000 u_int32_t stat, irstat, itstat; 2001 2002 stat = OREAD(sc, FWOHCI_INTSTAT); 2003 if (stat == 0xffffffff) { 2004 device_printf(sc->fc.dev, 2005 "device physically ejected?\n"); 2006 return(stat); 2007 } 2008 #ifdef ACK_ALL 2009 if (stat) 2010 OWRITE(sc, FWOHCI_INTSTATCLR, stat); 2011 #endif 2012 if (stat & OHCI_INT_DMA_IR) { 2013 irstat = OREAD(sc, OHCI_IR_STAT); 2014 OWRITE(sc, OHCI_IR_STATCLR, irstat); 2015 atomic_set_int(&sc->irstat, irstat); 2016 } 2017 if (stat & OHCI_INT_DMA_IT) { 2018 itstat = OREAD(sc, OHCI_IT_STAT); 2019 OWRITE(sc, OHCI_IT_STATCLR, itstat); 2020 atomic_set_int(&sc->itstat, itstat); 2021 } 2022 return(stat); 2023 } 2024 2025 void 2026 fwohci_intr(void *arg) 2027 { 2028 struct fwohci_softc *sc = (struct fwohci_softc *)arg; 2029 u_int32_t stat; 2030 #if !FWOHCI_TASKQUEUE 2031 u_int32_t bus_reset = 0; 2032 #endif 2033 2034 if (!(sc->intmask & OHCI_INT_EN)) { 2035 /* polling mode */ 2036 return; 2037 } 2038 2039 #if !FWOHCI_TASKQUEUE 2040 again: 2041 #endif 2042 stat = fwochi_check_stat(sc); 2043 if (stat == 0 || stat == 0xffffffff) 2044 return; 2045 #if FWOHCI_TASKQUEUE 2046 atomic_set_int(&sc->intstat, stat); 2047 /* XXX mask bus reset intr. during bus reset phase */ 2048 if (stat) 2049 taskqueue_enqueue(taskqueue_swi_giant, &sc->fwohci_task_complete); 2050 #else 2051 /* We cannot clear bus reset event during bus reset phase */ 2052 if ((stat & ~bus_reset) == 0) 2053 return; 2054 bus_reset = stat & OHCI_INT_PHY_BUS_R; 2055 fwohci_intr_body(sc, stat, -1); 2056 goto again; 2057 #endif 2058 } 2059 2060 void 2061 fwohci_poll(struct firewire_comm *fc, int quick, int count) 2062 { 2063 int s; 2064 u_int32_t stat; 2065 struct fwohci_softc *sc; 2066 2067 2068 sc = (struct fwohci_softc *)fc; 2069 stat = OHCI_INT_DMA_IR | OHCI_INT_DMA_IT | 2070 OHCI_INT_DMA_PRRS | OHCI_INT_DMA_PRRQ | 2071 OHCI_INT_DMA_ATRQ | OHCI_INT_DMA_ATRS; 2072 #if 0 2073 if (!quick) { 2074 #else 2075 if (1) { 2076 #endif 2077 stat = fwochi_check_stat(sc); 2078 if (stat == 0 || stat == 0xffffffff) 2079 return; 2080 } 2081 s = splfw(); 2082 fwohci_intr_body(sc, stat, count); 2083 splx(s); 2084 } 2085 2086 static void 2087 fwohci_set_intr(struct firewire_comm *fc, int enable) 2088 { 2089 struct fwohci_softc *sc; 2090 2091 sc = (struct fwohci_softc *)fc; 2092 if (bootverbose) 2093 device_printf(sc->fc.dev, "fwohci_set_intr: %d\n", enable); 2094 if (enable) { 2095 sc->intmask |= OHCI_INT_EN; 2096 OWRITE(sc, FWOHCI_INTMASK, OHCI_INT_EN); 2097 } else { 2098 sc->intmask &= ~OHCI_INT_EN; 2099 OWRITE(sc, FWOHCI_INTMASKCLR, OHCI_INT_EN); 2100 } 2101 } 2102 2103 static void 2104 fwohci_tbuf_update(struct fwohci_softc *sc, int dmach) 2105 { 2106 struct firewire_comm *fc = &sc->fc; 2107 volatile struct fwohcidb *db; 2108 struct fw_bulkxfer *chunk; 2109 struct fw_xferq *it; 2110 u_int32_t stat, count; 2111 int s, w=0, ldesc; 2112 2113 it = fc->it[dmach]; 2114 ldesc = sc->it[dmach].ndesc - 1; 2115 s = splfw(); /* unnecessary ? */ 2116 fwdma_sync_multiseg_all(sc->it[dmach].am, BUS_DMASYNC_POSTREAD); 2117 if (firewire_debug) 2118 dump_db(sc, ITX_CH + dmach); 2119 while ((chunk = STAILQ_FIRST(&it->stdma)) != NULL) { 2120 db = ((struct fwohcidb_tr *)(chunk->end))->db; 2121 stat = FWOHCI_DMA_READ(db[ldesc].db.desc.res) 2122 >> OHCI_STATUS_SHIFT; 2123 db = ((struct fwohcidb_tr *)(chunk->start))->db; 2124 /* timestamp */ 2125 count = FWOHCI_DMA_READ(db[ldesc].db.desc.res) 2126 & OHCI_COUNT_MASK; 2127 if (stat == 0) 2128 break; 2129 STAILQ_REMOVE_HEAD(&it->stdma, link); 2130 switch (stat & FWOHCIEV_MASK){ 2131 case FWOHCIEV_ACKCOMPL: 2132 #if 0 2133 device_printf(fc->dev, "0x%08x\n", count); 2134 #endif 2135 break; 2136 default: 2137 device_printf(fc->dev, 2138 "Isochronous transmit err %02x(%s)\n", 2139 stat, fwohcicode[stat & 0x1f]); 2140 } 2141 STAILQ_INSERT_TAIL(&it->stfree, chunk, link); 2142 w++; 2143 } 2144 splx(s); 2145 if (w) 2146 wakeup(it); 2147 } 2148 2149 static void 2150 fwohci_rbuf_update(struct fwohci_softc *sc, int dmach) 2151 { 2152 struct firewire_comm *fc = &sc->fc; 2153 volatile struct fwohcidb_tr *db_tr; 2154 struct fw_bulkxfer *chunk; 2155 struct fw_xferq *ir; 2156 u_int32_t stat; 2157 int s, w=0, ldesc; 2158 2159 ir = fc->ir[dmach]; 2160 ldesc = sc->ir[dmach].ndesc - 1; 2161 #if 0 2162 dump_db(sc, dmach); 2163 #endif 2164 s = splfw(); 2165 fwdma_sync_multiseg_all(sc->ir[dmach].am, BUS_DMASYNC_POSTREAD); 2166 while ((chunk = STAILQ_FIRST(&ir->stdma)) != NULL) { 2167 db_tr = (struct fwohcidb_tr *)chunk->end; 2168 stat = FWOHCI_DMA_READ(db_tr->db[ldesc].db.desc.res) 2169 >> OHCI_STATUS_SHIFT; 2170 if (stat == 0) 2171 break; 2172 2173 if (chunk->mbuf != NULL) { 2174 bus_dmamap_sync(sc->ir[dmach].dmat, db_tr->dma_map, 2175 BUS_DMASYNC_POSTREAD); 2176 bus_dmamap_unload(sc->ir[dmach].dmat, db_tr->dma_map); 2177 } else if (ir->buf != NULL) { 2178 fwdma_sync_multiseg(ir->buf, chunk->poffset, 2179 ir->bnpacket, BUS_DMASYNC_POSTREAD); 2180 } else { 2181 /* XXX */ 2182 printf("fwohci_rbuf_update: this shouldn't happend\n"); 2183 } 2184 2185 STAILQ_REMOVE_HEAD(&ir->stdma, link); 2186 STAILQ_INSERT_TAIL(&ir->stvalid, chunk, link); 2187 switch (stat & FWOHCIEV_MASK) { 2188 case FWOHCIEV_ACKCOMPL: 2189 chunk->resp = 0; 2190 break; 2191 default: 2192 chunk->resp = EINVAL; 2193 device_printf(fc->dev, 2194 "Isochronous receive err %02x(%s)\n", 2195 stat, fwohcicode[stat & 0x1f]); 2196 } 2197 w++; 2198 } 2199 splx(s); 2200 if (w) { 2201 if (ir->flag & FWXFERQ_HANDLER) 2202 ir->hand(ir); 2203 else 2204 wakeup(ir); 2205 } 2206 } 2207 2208 void 2209 dump_dma(struct fwohci_softc *sc, u_int32_t ch) 2210 { 2211 u_int32_t off, cntl, stat, cmd, match; 2212 2213 if(ch == 0){ 2214 off = OHCI_ATQOFF; 2215 }else if(ch == 1){ 2216 off = OHCI_ATSOFF; 2217 }else if(ch == 2){ 2218 off = OHCI_ARQOFF; 2219 }else if(ch == 3){ 2220 off = OHCI_ARSOFF; 2221 }else if(ch < IRX_CH){ 2222 off = OHCI_ITCTL(ch - ITX_CH); 2223 }else{ 2224 off = OHCI_IRCTL(ch - IRX_CH); 2225 } 2226 cntl = stat = OREAD(sc, off); 2227 cmd = OREAD(sc, off + 0xc); 2228 match = OREAD(sc, off + 0x10); 2229 2230 device_printf(sc->fc.dev, "ch %1x cntl:0x%08x cmd:0x%08x match:0x%08x\n", 2231 ch, 2232 cntl, 2233 cmd, 2234 match); 2235 stat &= 0xffff ; 2236 if (stat) { 2237 device_printf(sc->fc.dev, "dma %d ch:%s%s%s%s%s%s %s(%x)\n", 2238 ch, 2239 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 2240 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 2241 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 2242 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 2243 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 2244 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 2245 fwohcicode[stat & 0x1f], 2246 stat & 0x1f 2247 ); 2248 }else{ 2249 device_printf(sc->fc.dev, "dma %d ch: Nostat\n", ch); 2250 } 2251 } 2252 2253 void 2254 dump_db(struct fwohci_softc *sc, u_int32_t ch) 2255 { 2256 struct fwohci_dbch *dbch; 2257 struct fwohcidb_tr *cp = NULL, *pp, *np = NULL; 2258 volatile struct fwohcidb *curr = NULL, *prev, *next = NULL; 2259 int idb, jdb; 2260 u_int32_t cmd, off; 2261 if(ch == 0){ 2262 off = OHCI_ATQOFF; 2263 dbch = &sc->atrq; 2264 }else if(ch == 1){ 2265 off = OHCI_ATSOFF; 2266 dbch = &sc->atrs; 2267 }else if(ch == 2){ 2268 off = OHCI_ARQOFF; 2269 dbch = &sc->arrq; 2270 }else if(ch == 3){ 2271 off = OHCI_ARSOFF; 2272 dbch = &sc->arrs; 2273 }else if(ch < IRX_CH){ 2274 off = OHCI_ITCTL(ch - ITX_CH); 2275 dbch = &sc->it[ch - ITX_CH]; 2276 }else { 2277 off = OHCI_IRCTL(ch - IRX_CH); 2278 dbch = &sc->ir[ch - IRX_CH]; 2279 } 2280 cmd = OREAD(sc, off + 0xc); 2281 2282 if( dbch->ndb == 0 ){ 2283 device_printf(sc->fc.dev, "No DB is attached ch=%d\n", ch); 2284 return; 2285 } 2286 pp = dbch->top; 2287 prev = pp->db; 2288 for(idb = 0 ; idb < dbch->ndb ; idb ++ ){ 2289 if(pp == NULL){ 2290 curr = NULL; 2291 goto outdb; 2292 } 2293 cp = STAILQ_NEXT(pp, link); 2294 if(cp == NULL){ 2295 curr = NULL; 2296 goto outdb; 2297 } 2298 np = STAILQ_NEXT(cp, link); 2299 for(jdb = 0 ; jdb < dbch->ndesc ; jdb ++ ){ 2300 if ((cmd & 0xfffffff0) == cp->bus_addr) { 2301 curr = cp->db; 2302 if(np != NULL){ 2303 next = np->db; 2304 }else{ 2305 next = NULL; 2306 } 2307 goto outdb; 2308 } 2309 } 2310 pp = STAILQ_NEXT(pp, link); 2311 prev = pp->db; 2312 } 2313 outdb: 2314 if( curr != NULL){ 2315 #if 0 2316 printf("Prev DB %d\n", ch); 2317 print_db(pp, prev, ch, dbch->ndesc); 2318 #endif 2319 printf("Current DB %d\n", ch); 2320 print_db(cp, curr, ch, dbch->ndesc); 2321 #if 0 2322 printf("Next DB %d\n", ch); 2323 print_db(np, next, ch, dbch->ndesc); 2324 #endif 2325 }else{ 2326 printf("dbdump err ch = %d cmd = 0x%08x\n", ch, cmd); 2327 } 2328 return; 2329 } 2330 2331 void 2332 print_db(struct fwohcidb_tr *db_tr, volatile struct fwohcidb *db, 2333 u_int32_t ch, u_int32_t max) 2334 { 2335 fwohcireg_t stat; 2336 int i, key; 2337 u_int32_t cmd, res; 2338 2339 if(db == NULL){ 2340 printf("No Descriptor is found\n"); 2341 return; 2342 } 2343 2344 printf("ch = %d\n%8s %s %s %s %s %4s %8s %8s %4s:%4s\n", 2345 ch, 2346 "Current", 2347 "OP ", 2348 "KEY", 2349 "INT", 2350 "BR ", 2351 "len", 2352 "Addr", 2353 "Depend", 2354 "Stat", 2355 "Cnt"); 2356 for( i = 0 ; i <= max ; i ++){ 2357 cmd = FWOHCI_DMA_READ(db[i].db.desc.cmd); 2358 res = FWOHCI_DMA_READ(db[i].db.desc.res); 2359 key = cmd & OHCI_KEY_MASK; 2360 stat = res >> OHCI_STATUS_SHIFT; 2361 #if __FreeBSD_version >= 500000 2362 printf("%08jx %s %s %s %s %5d %08x %08x %04x:%04x", 2363 (uintmax_t)db_tr->bus_addr, 2364 #else 2365 printf("%08x %s %s %s %s %5d %08x %08x %04x:%04x", 2366 db_tr->bus_addr, 2367 #endif 2368 dbcode[(cmd >> 28) & 0xf], 2369 dbkey[(cmd >> 24) & 0x7], 2370 dbcond[(cmd >> 20) & 0x3], 2371 dbcond[(cmd >> 18) & 0x3], 2372 cmd & OHCI_COUNT_MASK, 2373 FWOHCI_DMA_READ(db[i].db.desc.addr), 2374 FWOHCI_DMA_READ(db[i].db.desc.depend), 2375 stat, 2376 res & OHCI_COUNT_MASK); 2377 if(stat & 0xff00){ 2378 printf(" %s%s%s%s%s%s %s(%x)\n", 2379 stat & OHCI_CNTL_DMA_RUN ? "RUN," : "", 2380 stat & OHCI_CNTL_DMA_WAKE ? "WAKE," : "", 2381 stat & OHCI_CNTL_DMA_DEAD ? "DEAD," : "", 2382 stat & OHCI_CNTL_DMA_ACTIVE ? "ACTIVE," : "", 2383 stat & OHCI_CNTL_DMA_BT ? "BRANCH," : "", 2384 stat & OHCI_CNTL_DMA_BAD ? "BADDMA," : "", 2385 fwohcicode[stat & 0x1f], 2386 stat & 0x1f 2387 ); 2388 }else{ 2389 printf(" Nostat\n"); 2390 } 2391 if(key == OHCI_KEY_ST2 ){ 2392 printf("0x%08x 0x%08x 0x%08x 0x%08x\n", 2393 FWOHCI_DMA_READ(db[i+1].db.immed[0]), 2394 FWOHCI_DMA_READ(db[i+1].db.immed[1]), 2395 FWOHCI_DMA_READ(db[i+1].db.immed[2]), 2396 FWOHCI_DMA_READ(db[i+1].db.immed[3])); 2397 } 2398 if(key == OHCI_KEY_DEVICE){ 2399 return; 2400 } 2401 if((cmd & OHCI_BRANCH_MASK) 2402 == OHCI_BRANCH_ALWAYS){ 2403 return; 2404 } 2405 if((cmd & OHCI_CMD_MASK) 2406 == OHCI_OUTPUT_LAST){ 2407 return; 2408 } 2409 if((cmd & OHCI_CMD_MASK) 2410 == OHCI_INPUT_LAST){ 2411 return; 2412 } 2413 if(key == OHCI_KEY_ST2 ){ 2414 i++; 2415 } 2416 } 2417 return; 2418 } 2419 2420 void 2421 fwohci_ibr(struct firewire_comm *fc) 2422 { 2423 struct fwohci_softc *sc; 2424 u_int32_t fun; 2425 2426 device_printf(fc->dev, "Initiate bus reset\n"); 2427 sc = (struct fwohci_softc *)fc; 2428 2429 /* 2430 * Set root hold-off bit so that non cyclemaster capable node 2431 * shouldn't became the root node. 2432 */ 2433 #if 1 2434 fun = fwphy_rddata(sc, FW_PHY_IBR_REG); 2435 fun |= FW_PHY_IBR | FW_PHY_RHB; 2436 fun = fwphy_wrdata(sc, FW_PHY_IBR_REG, fun); 2437 #else /* Short bus reset */ 2438 fun = fwphy_rddata(sc, FW_PHY_ISBR_REG); 2439 fun |= FW_PHY_ISBR | FW_PHY_RHB; 2440 fun = fwphy_wrdata(sc, FW_PHY_ISBR_REG, fun); 2441 #endif 2442 } 2443 2444 void 2445 fwohci_txbufdb(struct fwohci_softc *sc, int dmach, struct fw_bulkxfer *bulkxfer) 2446 { 2447 struct fwohcidb_tr *db_tr, *fdb_tr; 2448 struct fwohci_dbch *dbch; 2449 volatile struct fwohcidb *db; 2450 struct fw_pkt *fp; 2451 volatile struct fwohci_txpkthdr *ohcifp; 2452 unsigned short chtag; 2453 int idb; 2454 2455 dbch = &sc->it[dmach]; 2456 chtag = sc->it[dmach].xferq.flag & 0xff; 2457 2458 db_tr = (struct fwohcidb_tr *)(bulkxfer->start); 2459 fdb_tr = (struct fwohcidb_tr *)(bulkxfer->end); 2460 /* 2461 device_printf(sc->fc.dev, "DB %08x %08x %08x\n", bulkxfer, db_tr->bus_addr, fdb_tr->bus_addr); 2462 */ 2463 for (idb = 0; idb < dbch->xferq.bnpacket; idb ++) { 2464 db = db_tr->db; 2465 fp = (struct fw_pkt *)db_tr->buf; 2466 ohcifp = (volatile struct fwohci_txpkthdr *) db[1].db.immed; 2467 ohcifp->mode.ld[0] = fp->mode.ld[0]; 2468 ohcifp->mode.common.spd = 0 & 0x7; 2469 ohcifp->mode.stream.len = fp->mode.stream.len; 2470 ohcifp->mode.stream.chtag = chtag; 2471 ohcifp->mode.stream.tcode = 0xa; 2472 #if BYTE_ORDER == BIG_ENDIAN 2473 FWOHCI_DMA_WRITE(db[1].db.immed[0], db[1].db.immed[0]); 2474 FWOHCI_DMA_WRITE(db[1].db.immed[1], db[1].db.immed[1]); 2475 #endif 2476 2477 FWOHCI_DMA_CLEAR(db[2].db.desc.cmd, OHCI_COUNT_MASK); 2478 FWOHCI_DMA_SET(db[2].db.desc.cmd, fp->mode.stream.len); 2479 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0); 2480 #if 0 /* if bulkxfer->npackets changes */ 2481 db[2].db.desc.cmd = OHCI_OUTPUT_LAST 2482 | OHCI_UPDATE 2483 | OHCI_BRANCH_ALWAYS; 2484 db[0].db.desc.depend = 2485 = db[dbch->ndesc - 1].db.desc.depend 2486 = STAILQ_NEXT(db_tr, link)->bus_addr | dbch->ndesc; 2487 #else 2488 FWOHCI_DMA_SET(db[0].db.desc.depend, dbch->ndesc); 2489 FWOHCI_DMA_SET(db[dbch->ndesc - 1].db.desc.depend, dbch->ndesc); 2490 #endif 2491 bulkxfer->end = (caddr_t)db_tr; 2492 db_tr = STAILQ_NEXT(db_tr, link); 2493 } 2494 db = ((struct fwohcidb_tr *)bulkxfer->end)->db; 2495 FWOHCI_DMA_CLEAR(db[0].db.desc.depend, 0xf); 2496 FWOHCI_DMA_CLEAR(db[dbch->ndesc - 1].db.desc.depend, 0xf); 2497 #if 0 /* if bulkxfer->npackets changes */ 2498 db[dbch->ndesc - 1].db.desc.control |= OHCI_INTERRUPT_ALWAYS; 2499 /* OHCI 1.1 and above */ 2500 db[0].db.desc.control |= OHCI_INTERRUPT_ALWAYS; 2501 #endif 2502 /* 2503 db_tr = (struct fwohcidb_tr *)bulkxfer->start; 2504 fdb_tr = (struct fwohcidb_tr *)bulkxfer->end; 2505 device_printf(sc->fc.dev, "DB %08x %3d %08x %08x\n", bulkxfer, bulkxfer->npacket, db_tr->bus_addr, fdb_tr->bus_addr); 2506 */ 2507 return; 2508 } 2509 2510 static int 2511 fwohci_add_tx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr, 2512 int poffset) 2513 { 2514 volatile struct fwohcidb *db = db_tr->db; 2515 struct fw_xferq *it; 2516 int err = 0; 2517 2518 it = &dbch->xferq; 2519 if(it->buf == 0){ 2520 err = EINVAL; 2521 return err; 2522 } 2523 db_tr->buf = fwdma_v_addr(it->buf, poffset); 2524 db_tr->dbcnt = 3; 2525 2526 FWOHCI_DMA_WRITE(db[0].db.desc.cmd, 2527 OHCI_OUTPUT_MORE | OHCI_KEY_ST2 | 8); 2528 FWOHCI_DMA_WRITE(db[0].db.desc.addr, 0); 2529 bzero((void *)(uintptr_t)(volatile void *) 2530 &db[1].db.immed[0], sizeof(db[1].db.immed)); 2531 FWOHCI_DMA_WRITE(db[2].db.desc.addr, 2532 fwdma_bus_addr(it->buf, poffset) + sizeof(u_int32_t)); 2533 2534 FWOHCI_DMA_WRITE(db[2].db.desc.cmd, 2535 OHCI_OUTPUT_LAST | OHCI_UPDATE | OHCI_BRANCH_ALWAYS); 2536 #if 1 2537 FWOHCI_DMA_WRITE(db[0].db.desc.res, 0); 2538 FWOHCI_DMA_WRITE(db[2].db.desc.res, 0); 2539 #endif 2540 return 0; 2541 } 2542 2543 int 2544 fwohci_add_rx_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr, 2545 int poffset, struct fwdma_alloc *dummy_dma) 2546 { 2547 volatile struct fwohcidb *db = db_tr->db; 2548 struct fw_xferq *ir; 2549 int i, ldesc; 2550 bus_addr_t dbuf[2]; 2551 int dsiz[2]; 2552 2553 ir = &dbch->xferq; 2554 if (ir->buf == NULL && (dbch->xferq.flag & FWXFERQ_EXTBUF) == 0) { 2555 db_tr->buf = fwdma_malloc_size(dbch->dmat, &db_tr->dma_map, 2556 ir->psize, &dbuf[0], BUS_DMA_NOWAIT); 2557 if (db_tr->buf == NULL) 2558 return(ENOMEM); 2559 db_tr->dbcnt = 1; 2560 dsiz[0] = ir->psize; 2561 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 2562 BUS_DMASYNC_PREREAD); 2563 } else { 2564 db_tr->dbcnt = 0; 2565 if (dummy_dma != NULL) { 2566 dsiz[db_tr->dbcnt] = sizeof(u_int32_t); 2567 dbuf[db_tr->dbcnt++] = dummy_dma->bus_addr; 2568 } 2569 dsiz[db_tr->dbcnt] = ir->psize; 2570 if (ir->buf != NULL) { 2571 db_tr->buf = fwdma_v_addr(ir->buf, poffset); 2572 dbuf[db_tr->dbcnt] = fwdma_bus_addr( ir->buf, poffset); 2573 } 2574 db_tr->dbcnt++; 2575 } 2576 for(i = 0 ; i < db_tr->dbcnt ; i++){ 2577 FWOHCI_DMA_WRITE(db[i].db.desc.addr, dbuf[i]); 2578 FWOHCI_DMA_WRITE(db[i].db.desc.cmd, OHCI_INPUT_MORE | dsiz[i]); 2579 if (ir->flag & FWXFERQ_STREAM) { 2580 FWOHCI_DMA_SET(db[i].db.desc.cmd, OHCI_UPDATE); 2581 } 2582 FWOHCI_DMA_WRITE(db[i].db.desc.res, dsiz[i]); 2583 } 2584 ldesc = db_tr->dbcnt - 1; 2585 if (ir->flag & FWXFERQ_STREAM) { 2586 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_INPUT_LAST); 2587 } 2588 FWOHCI_DMA_SET(db[ldesc].db.desc.cmd, OHCI_BRANCH_ALWAYS); 2589 return 0; 2590 } 2591 2592 2593 static int 2594 fwohci_arcv_swap(struct fw_pkt *fp, int len) 2595 { 2596 struct fw_pkt *fp0; 2597 u_int32_t ld0; 2598 int slen; 2599 #if BYTE_ORDER == BIG_ENDIAN 2600 int i; 2601 #endif 2602 2603 ld0 = FWOHCI_DMA_READ(fp->mode.ld[0]); 2604 #if 0 2605 printf("ld0: x%08x\n", ld0); 2606 #endif 2607 fp0 = (struct fw_pkt *)&ld0; 2608 switch (fp0->mode.common.tcode) { 2609 case FWTCODE_RREQQ: 2610 case FWTCODE_WRES: 2611 case FWTCODE_WREQQ: 2612 case FWTCODE_RRESQ: 2613 case FWOHCITCODE_PHY: 2614 slen = 12; 2615 break; 2616 case FWTCODE_RREQB: 2617 case FWTCODE_WREQB: 2618 case FWTCODE_LREQ: 2619 case FWTCODE_RRESB: 2620 case FWTCODE_LRES: 2621 slen = 16; 2622 break; 2623 default: 2624 printf("Unknown tcode %d\n", fp0->mode.common.tcode); 2625 return(0); 2626 } 2627 if (slen > len) { 2628 if (firewire_debug) 2629 printf("splitted header\n"); 2630 return(-slen); 2631 } 2632 #if BYTE_ORDER == BIG_ENDIAN 2633 for(i = 0; i < slen/4; i ++) 2634 fp->mode.ld[i] = FWOHCI_DMA_READ(fp->mode.ld[i]); 2635 #endif 2636 return(slen); 2637 } 2638 2639 #define PLEN(x) roundup2(x, sizeof(u_int32_t)) 2640 static int 2641 fwohci_get_plen(struct fwohci_softc *sc, struct fwohci_dbch *dbch, struct fw_pkt *fp) 2642 { 2643 int r; 2644 2645 switch(fp->mode.common.tcode){ 2646 case FWTCODE_RREQQ: 2647 r = sizeof(fp->mode.rreqq) + sizeof(u_int32_t); 2648 break; 2649 case FWTCODE_WRES: 2650 r = sizeof(fp->mode.wres) + sizeof(u_int32_t); 2651 break; 2652 case FWTCODE_WREQQ: 2653 r = sizeof(fp->mode.wreqq) + sizeof(u_int32_t); 2654 break; 2655 case FWTCODE_RREQB: 2656 r = sizeof(fp->mode.rreqb) + sizeof(u_int32_t); 2657 break; 2658 case FWTCODE_RRESQ: 2659 r = sizeof(fp->mode.rresq) + sizeof(u_int32_t); 2660 break; 2661 case FWTCODE_WREQB: 2662 r = sizeof(struct fw_asyhdr) + PLEN(fp->mode.wreqb.len) 2663 + sizeof(u_int32_t); 2664 break; 2665 case FWTCODE_LREQ: 2666 r = sizeof(struct fw_asyhdr) + PLEN(fp->mode.lreq.len) 2667 + sizeof(u_int32_t); 2668 break; 2669 case FWTCODE_RRESB: 2670 r = sizeof(struct fw_asyhdr) + PLEN(fp->mode.rresb.len) 2671 + sizeof(u_int32_t); 2672 break; 2673 case FWTCODE_LRES: 2674 r = sizeof(struct fw_asyhdr) + PLEN(fp->mode.lres.len) 2675 + sizeof(u_int32_t); 2676 break; 2677 case FWOHCITCODE_PHY: 2678 r = 16; 2679 break; 2680 default: 2681 device_printf(sc->fc.dev, "Unknown tcode %d\n", 2682 fp->mode.common.tcode); 2683 r = 0; 2684 } 2685 if (r > dbch->xferq.psize) { 2686 device_printf(sc->fc.dev, "Invalid packet length %d\n", r); 2687 /* panic ? */ 2688 } 2689 return r; 2690 } 2691 2692 static void 2693 fwohci_arcv_free_buf(struct fwohci_dbch *dbch, struct fwohcidb_tr *db_tr) 2694 { 2695 volatile struct fwohcidb *db = &db_tr->db[0]; 2696 2697 FWOHCI_DMA_CLEAR(db->db.desc.depend, 0xf); 2698 FWOHCI_DMA_WRITE(db->db.desc.res, dbch->xferq.psize); 2699 FWOHCI_DMA_SET(dbch->bottom->db[0].db.desc.depend, 1); 2700 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_PREWRITE); 2701 dbch->bottom = db_tr; 2702 } 2703 2704 static void 2705 fwohci_arcv(struct fwohci_softc *sc, struct fwohci_dbch *dbch, int count) 2706 { 2707 struct fwohcidb_tr *db_tr; 2708 struct iovec vec[2]; 2709 struct fw_pkt pktbuf; 2710 int nvec; 2711 struct fw_pkt *fp; 2712 u_int8_t *ld; 2713 u_int32_t stat, off, status; 2714 u_int spd; 2715 int len, plen, hlen, pcnt, offset; 2716 int s; 2717 caddr_t buf; 2718 int resCount; 2719 2720 if(&sc->arrq == dbch){ 2721 off = OHCI_ARQOFF; 2722 }else if(&sc->arrs == dbch){ 2723 off = OHCI_ARSOFF; 2724 }else{ 2725 return; 2726 } 2727 2728 s = splfw(); 2729 db_tr = dbch->top; 2730 pcnt = 0; 2731 /* XXX we cannot handle a packet which lies in more than two buf */ 2732 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTREAD); 2733 fwdma_sync_multiseg_all(dbch->am, BUS_DMASYNC_POSTWRITE); 2734 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) >> OHCI_STATUS_SHIFT; 2735 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) & OHCI_COUNT_MASK; 2736 #if 0 2737 printf("status 0x%04x, resCount 0x%04x\n", status, resCount); 2738 #endif 2739 while (status & OHCI_CNTL_DMA_ACTIVE) { 2740 len = dbch->xferq.psize - resCount; 2741 ld = (u_int8_t *)db_tr->buf; 2742 if (dbch->pdb_tr == NULL) { 2743 len -= dbch->buf_offset; 2744 ld += dbch->buf_offset; 2745 } 2746 if (len > 0) 2747 bus_dmamap_sync(dbch->dmat, db_tr->dma_map, 2748 BUS_DMASYNC_POSTREAD); 2749 while (len > 0 ) { 2750 if (count >= 0 && count-- == 0) 2751 goto out; 2752 if(dbch->pdb_tr != NULL){ 2753 /* we have a fragment in previous buffer */ 2754 int rlen; 2755 2756 offset = dbch->buf_offset; 2757 if (offset < 0) 2758 offset = - offset; 2759 buf = dbch->pdb_tr->buf + offset; 2760 rlen = dbch->xferq.psize - offset; 2761 if (firewire_debug) 2762 printf("rlen=%d, offset=%d\n", 2763 rlen, dbch->buf_offset); 2764 if (dbch->buf_offset < 0) { 2765 /* splitted in header, pull up */ 2766 char *p; 2767 2768 p = (char *)&pktbuf; 2769 bcopy(buf, p, rlen); 2770 p += rlen; 2771 /* this must be too long but harmless */ 2772 rlen = sizeof(pktbuf) - rlen; 2773 if (rlen < 0) 2774 printf("why rlen < 0\n"); 2775 bcopy(db_tr->buf, p, rlen); 2776 ld += rlen; 2777 len -= rlen; 2778 hlen = fwohci_arcv_swap(&pktbuf, sizeof(pktbuf)); 2779 if (hlen < 0) { 2780 printf("hlen < 0 shouldn't happen"); 2781 } 2782 offset = sizeof(pktbuf); 2783 vec[0].iov_base = (char *)&pktbuf; 2784 vec[0].iov_len = offset; 2785 } else { 2786 /* splitted in payload */ 2787 offset = rlen; 2788 vec[0].iov_base = buf; 2789 vec[0].iov_len = rlen; 2790 } 2791 fp=(struct fw_pkt *)vec[0].iov_base; 2792 nvec = 1; 2793 } else { 2794 /* no fragment in previous buffer */ 2795 fp=(struct fw_pkt *)ld; 2796 hlen = fwohci_arcv_swap(fp, len); 2797 if (hlen == 0) 2798 /* XXX need reset */ 2799 goto out; 2800 if (hlen < 0) { 2801 dbch->pdb_tr = db_tr; 2802 dbch->buf_offset = - dbch->buf_offset; 2803 /* sanity check */ 2804 if (resCount != 0) 2805 printf("resCount != 0 !?\n"); 2806 goto out; 2807 } 2808 offset = 0; 2809 nvec = 0; 2810 } 2811 plen = fwohci_get_plen(sc, dbch, fp) - offset; 2812 if (plen < 0) { 2813 /* minimum header size + trailer 2814 = sizeof(fw_pkt) so this shouldn't happens */ 2815 printf("plen is negative! offset=%d\n", offset); 2816 goto out; 2817 } 2818 if (plen > 0) { 2819 len -= plen; 2820 if (len < 0) { 2821 dbch->pdb_tr = db_tr; 2822 if (firewire_debug) 2823 printf("splitted payload\n"); 2824 /* sanity check */ 2825 if (resCount != 0) 2826 printf("resCount != 0 !?\n"); 2827 goto out; 2828 } 2829 vec[nvec].iov_base = ld; 2830 vec[nvec].iov_len = plen; 2831 nvec ++; 2832 ld += plen; 2833 } 2834 dbch->buf_offset = ld - (u_int8_t *)db_tr->buf; 2835 if (nvec == 0) 2836 printf("nvec == 0\n"); 2837 2838 /* DMA result-code will be written at the tail of packet */ 2839 #if BYTE_ORDER == BIG_ENDIAN 2840 stat = FWOHCI_DMA_READ(((struct fwohci_trailer *)(ld - sizeof(struct fwohci_trailer)))->stat) >> 16; 2841 #else 2842 stat = ((struct fwohci_trailer *)(ld - sizeof(struct fwohci_trailer)))->stat; 2843 #endif 2844 #if 0 2845 printf("plen: %d, stat %x\n", plen ,stat); 2846 #endif 2847 spd = (stat >> 5) & 0x3; 2848 stat &= 0x1f; 2849 switch(stat){ 2850 case FWOHCIEV_ACKPEND: 2851 #if 0 2852 printf("fwohci_arcv: ack pending tcode=0x%x..\n", fp->mode.common.tcode); 2853 #endif 2854 /* fall through */ 2855 case FWOHCIEV_ACKCOMPL: 2856 if ((vec[nvec-1].iov_len -= 2857 sizeof(struct fwohci_trailer)) == 0) 2858 nvec--; 2859 fw_rcv(&sc->fc, vec, nvec, 0, spd); 2860 break; 2861 case FWOHCIEV_BUSRST: 2862 if (sc->fc.status != FWBUSRESET) 2863 printf("got BUSRST packet!?\n"); 2864 break; 2865 default: 2866 device_printf(sc->fc.dev, "Async DMA Receive error err = %02x %s\n", stat, fwohcicode[stat]); 2867 #if 0 /* XXX */ 2868 goto out; 2869 #endif 2870 break; 2871 } 2872 pcnt ++; 2873 if (dbch->pdb_tr != NULL) { 2874 fwohci_arcv_free_buf(dbch, dbch->pdb_tr); 2875 dbch->pdb_tr = NULL; 2876 } 2877 2878 } 2879 out: 2880 if (resCount == 0) { 2881 /* done on this buffer */ 2882 if (dbch->pdb_tr == NULL) { 2883 fwohci_arcv_free_buf(dbch, db_tr); 2884 dbch->buf_offset = 0; 2885 } else 2886 if (dbch->pdb_tr != db_tr) 2887 printf("pdb_tr != db_tr\n"); 2888 db_tr = STAILQ_NEXT(db_tr, link); 2889 status = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) 2890 >> OHCI_STATUS_SHIFT; 2891 resCount = FWOHCI_DMA_READ(db_tr->db[0].db.desc.res) 2892 & OHCI_COUNT_MASK; 2893 /* XXX check buffer overrun */ 2894 dbch->top = db_tr; 2895 } else { 2896 dbch->buf_offset = dbch->xferq.psize - resCount; 2897 break; 2898 } 2899 /* XXX make sure DMA is not dead */ 2900 } 2901 #if 0 2902 if (pcnt < 1) 2903 printf("fwohci_arcv: no packets\n"); 2904 #endif 2905 splx(s); 2906 } 2907