ohci.c revision 1.84
1 /* $NetBSD: ohci.c,v 1.84 2000/03/29 18:24:53 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Open Host Controller driver. 43 * 44 * OHCI spec: ftp://ftp.compaq.com/pub/supportinformation/papers/hcir1_0a.exe 45 * USB spec: http://www.usb.org/developers/data/usb11.pdf 46 */ 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/malloc.h> 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <sys/kernel.h> 53 #include <sys/device.h> 54 #include <sys/select.h> 55 #elif defined(__FreeBSD__) 56 #include <sys/module.h> 57 #include <sys/bus.h> 58 #include <machine/bus_pio.h> 59 #include <machine/bus_memio.h> 60 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 61 #include <machine/cpu.h> 62 #endif 63 #endif 64 #include <sys/proc.h> 65 #include <sys/queue.h> 66 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/ohcireg.h> 77 #include <dev/usb/ohcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #if defined(__OpenBSD__) 86 struct cfdriver ohci_cd = { 87 NULL, "ohci", DV_DULL 88 }; 89 #endif 90 91 #ifdef OHCI_DEBUG 92 #define DPRINTF(x) if (ohcidebug) logprintf x 93 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 94 int ohcidebug = 0; 95 #else 96 #define DPRINTF(x) 97 #define DPRINTFN(n,x) 98 #endif 99 100 /* 101 * The OHCI controller is little endian, so on big endian machines 102 * the data strored in memory needs to be swapped. 103 */ 104 #if defined(__FreeBSD__) || defined(__OpenBSD__) 105 #if BYTE_ORDER == BIG_ENDIAN 106 #define htole32(x) (bswap32(x)) 107 #define le32toh(x) (bswap32(x)) 108 #else 109 #define htole32(x) (x) 110 #define le32toh(x) (x) 111 #endif 112 #endif 113 114 struct ohci_pipe; 115 116 Static ohci_soft_ed_t *ohci_alloc_sed __P((ohci_softc_t *)); 117 Static void ohci_free_sed __P((ohci_softc_t *, ohci_soft_ed_t *)); 118 119 Static ohci_soft_td_t *ohci_alloc_std __P((ohci_softc_t *)); 120 Static void ohci_free_std __P((ohci_softc_t *, ohci_soft_td_t *)); 121 122 Static ohci_soft_itd_t *ohci_alloc_sitd __P((ohci_softc_t *)); 123 Static void ohci_free_sitd __P((ohci_softc_t *,ohci_soft_itd_t *)); 124 125 #if 0 126 Static void ohci_free_std_chain __P((ohci_softc_t *, 127 ohci_soft_td_t *, ohci_soft_td_t *)); 128 #endif 129 Static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *, 130 ohci_softc_t *, int, int, usbd_xfer_handle, 131 ohci_soft_td_t *, ohci_soft_td_t **)); 132 133 Static void ohci_shutdown __P((void *v)); 134 Static void ohci_power __P((int, void *)); 135 Static usbd_status ohci_open __P((usbd_pipe_handle)); 136 Static void ohci_poll __P((struct usbd_bus *)); 137 Static void ohci_softintr __P((struct usbd_bus *)); 138 Static void ohci_waitintr __P((ohci_softc_t *, usbd_xfer_handle)); 139 Static void ohci_add_done __P((ohci_softc_t *, ohci_physaddr_t)); 140 Static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 141 142 Static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 143 Static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 144 Static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 145 Static void ohci_hash_add_td __P((ohci_softc_t *, 146 ohci_soft_td_t *)); 147 Static void ohci_hash_rem_td __P((ohci_softc_t *, 148 ohci_soft_td_t *)); 149 Static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 150 ohci_physaddr_t)); 151 Static void ohci_hash_add_itd __P((ohci_softc_t *, 152 ohci_soft_itd_t *)); 153 Static void ohci_hash_rem_itd __P((ohci_softc_t *, 154 ohci_soft_itd_t *)); 155 Static ohci_soft_itd_t *ohci_hash_find_itd __P((ohci_softc_t *, 156 ohci_physaddr_t)); 157 158 Static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 159 Static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 160 161 Static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 162 u_int32_t)); 163 Static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 164 165 Static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 166 Static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 167 168 Static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 169 Static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 170 Static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 171 Static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 172 Static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 173 174 Static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 175 Static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 176 Static void ohci_root_intr_abort __P((usbd_xfer_handle)); 177 Static void ohci_root_intr_close __P((usbd_pipe_handle)); 178 Static void ohci_root_intr_done __P((usbd_xfer_handle)); 179 180 Static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 181 Static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 182 Static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 183 Static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 184 Static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 185 186 Static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 187 Static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 188 Static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 189 Static void ohci_device_bulk_close __P((usbd_pipe_handle)); 190 Static void ohci_device_bulk_done __P((usbd_xfer_handle)); 191 192 Static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 193 Static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 194 Static void ohci_device_intr_abort __P((usbd_xfer_handle)); 195 Static void ohci_device_intr_close __P((usbd_pipe_handle)); 196 Static void ohci_device_intr_done __P((usbd_xfer_handle)); 197 198 Static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 199 Static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 200 Static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 201 Static void ohci_device_isoc_close __P((usbd_pipe_handle)); 202 Static void ohci_device_isoc_done __P((usbd_xfer_handle)); 203 204 Static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 205 struct ohci_pipe *pipe, int ival)); 206 207 Static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 208 209 Static void ohci_timeout __P((void *)); 210 Static void ohci_rhsc_able __P((ohci_softc_t *, int)); 211 212 Static void ohci_close_pipe __P((usbd_pipe_handle pipe, 213 ohci_soft_ed_t *head)); 214 Static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 215 usbd_status status)); 216 Static void ohci_abort_xfer_end __P((void *)); 217 218 Static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 219 Static void ohci_noop __P((usbd_pipe_handle pipe)); 220 221 #ifdef OHCI_DEBUG 222 Static void ohci_dumpregs __P((ohci_softc_t *)); 223 Static void ohci_dump_tds __P((ohci_soft_td_t *)); 224 Static void ohci_dump_td __P((ohci_soft_td_t *)); 225 Static void ohci_dump_ed __P((ohci_soft_ed_t *)); 226 Static void ohci_dump_itd __P((ohci_soft_itd_t *)); 227 Static void ohci_dump_itds __P((ohci_soft_itd_t *)); 228 #endif 229 230 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 231 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 232 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 233 234 /* Reverse the bits in a value 0 .. 31 */ 235 Static u_int8_t revbits[OHCI_NO_INTRS] = 236 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 237 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 238 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 239 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 240 241 struct ohci_pipe { 242 struct usbd_pipe pipe; 243 ohci_soft_ed_t *sed; 244 union { 245 ohci_soft_td_t *td; 246 ohci_soft_itd_t *itd; 247 } tail; 248 /* Info needed for different pipe kinds. */ 249 union { 250 /* Control pipe */ 251 struct { 252 usb_dma_t reqdma; 253 u_int length; 254 ohci_soft_td_t *setup, *data, *stat; 255 } ctl; 256 /* Interrupt pipe */ 257 struct { 258 int nslots; 259 int pos; 260 } intr; 261 /* Bulk pipe */ 262 struct { 263 u_int length; 264 int isread; 265 } bulk; 266 /* Iso pipe */ 267 struct iso { 268 int next, inuse; 269 } iso; 270 } u; 271 }; 272 273 #define OHCI_INTR_ENDPT 1 274 275 Static struct usbd_bus_methods ohci_bus_methods = { 276 ohci_open, 277 ohci_softintr, 278 ohci_poll, 279 ohci_allocm, 280 ohci_freem, 281 ohci_allocx, 282 ohci_freex, 283 }; 284 285 Static struct usbd_pipe_methods ohci_root_ctrl_methods = { 286 ohci_root_ctrl_transfer, 287 ohci_root_ctrl_start, 288 ohci_root_ctrl_abort, 289 ohci_root_ctrl_close, 290 ohci_noop, 291 ohci_root_ctrl_done, 292 }; 293 294 Static struct usbd_pipe_methods ohci_root_intr_methods = { 295 ohci_root_intr_transfer, 296 ohci_root_intr_start, 297 ohci_root_intr_abort, 298 ohci_root_intr_close, 299 ohci_noop, 300 ohci_root_intr_done, 301 }; 302 303 Static struct usbd_pipe_methods ohci_device_ctrl_methods = { 304 ohci_device_ctrl_transfer, 305 ohci_device_ctrl_start, 306 ohci_device_ctrl_abort, 307 ohci_device_ctrl_close, 308 ohci_noop, 309 ohci_device_ctrl_done, 310 }; 311 312 Static struct usbd_pipe_methods ohci_device_intr_methods = { 313 ohci_device_intr_transfer, 314 ohci_device_intr_start, 315 ohci_device_intr_abort, 316 ohci_device_intr_close, 317 ohci_device_clear_toggle, 318 ohci_device_intr_done, 319 }; 320 321 Static struct usbd_pipe_methods ohci_device_bulk_methods = { 322 ohci_device_bulk_transfer, 323 ohci_device_bulk_start, 324 ohci_device_bulk_abort, 325 ohci_device_bulk_close, 326 ohci_device_clear_toggle, 327 ohci_device_bulk_done, 328 }; 329 330 Static struct usbd_pipe_methods ohci_device_isoc_methods = { 331 ohci_device_isoc_transfer, 332 ohci_device_isoc_start, 333 ohci_device_isoc_abort, 334 ohci_device_isoc_close, 335 ohci_noop, 336 ohci_device_isoc_done, 337 }; 338 339 #if defined(__NetBSD__) || defined(__OpenBSD__) 340 int 341 ohci_activate(self, act) 342 device_ptr_t self; 343 enum devact act; 344 { 345 struct ohci_softc *sc = (struct ohci_softc *)self; 346 int rv = 0; 347 348 switch (act) { 349 case DVACT_ACTIVATE: 350 return (EOPNOTSUPP); 351 break; 352 353 case DVACT_DEACTIVATE: 354 if (sc->sc_child != NULL) 355 rv = config_deactivate(sc->sc_child); 356 sc->sc_dying = 1; 357 break; 358 } 359 return (rv); 360 } 361 362 int 363 ohci_detach(sc, flags) 364 struct ohci_softc *sc; 365 int flags; 366 { 367 int rv = 0; 368 369 if (sc->sc_child != NULL) 370 rv = config_detach(sc->sc_child, flags); 371 372 if (rv != 0) 373 return (rv); 374 375 #if defined(__NetBSD__) || defined(__OpenBSD__) 376 powerhook_disestablish(sc->sc_powerhook); 377 shutdownhook_disestablish(sc->sc_shutdownhook); 378 #endif 379 380 /* free data structures XXX */ 381 382 return (rv); 383 } 384 #endif 385 386 ohci_soft_ed_t * 387 ohci_alloc_sed(sc) 388 ohci_softc_t *sc; 389 { 390 ohci_soft_ed_t *sed; 391 usbd_status err; 392 int i, offs; 393 usb_dma_t dma; 394 395 if (sc->sc_freeeds == NULL) { 396 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 397 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 398 OHCI_ED_ALIGN, &dma); 399 if (err) 400 return (0); 401 for(i = 0; i < OHCI_SED_CHUNK; i++) { 402 offs = i * OHCI_SED_SIZE; 403 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 404 sed->physaddr = DMAADDR(&dma) + offs; 405 sed->next = sc->sc_freeeds; 406 sc->sc_freeeds = sed; 407 } 408 } 409 sed = sc->sc_freeeds; 410 sc->sc_freeeds = sed->next; 411 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 412 sed->next = 0; 413 return (sed); 414 } 415 416 void 417 ohci_free_sed(sc, sed) 418 ohci_softc_t *sc; 419 ohci_soft_ed_t *sed; 420 { 421 sed->next = sc->sc_freeeds; 422 sc->sc_freeeds = sed; 423 } 424 425 ohci_soft_td_t * 426 ohci_alloc_std(sc) 427 ohci_softc_t *sc; 428 { 429 ohci_soft_td_t *std; 430 usbd_status err; 431 int i, offs; 432 usb_dma_t dma; 433 int s; 434 435 if (sc->sc_freetds == NULL) { 436 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 437 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 438 OHCI_TD_ALIGN, &dma); 439 if (err) 440 return (NULL); 441 s = splusb(); 442 for(i = 0; i < OHCI_STD_CHUNK; i++) { 443 offs = i * OHCI_STD_SIZE; 444 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 445 std->physaddr = DMAADDR(&dma) + offs; 446 std->nexttd = sc->sc_freetds; 447 sc->sc_freetds = std; 448 } 449 splx(s); 450 } 451 452 s = splusb(); 453 std = sc->sc_freetds; 454 sc->sc_freetds = std->nexttd; 455 memset(&std->td, 0, sizeof(ohci_td_t)); 456 std->nexttd = NULL; 457 std->xfer = NULL; 458 ohci_hash_add_td(sc, std); 459 splx(s); 460 461 return (std); 462 } 463 464 void 465 ohci_free_std(sc, std) 466 ohci_softc_t *sc; 467 ohci_soft_td_t *std; 468 { 469 int s; 470 471 s = splusb(); 472 ohci_hash_rem_td(sc, std); 473 std->nexttd = sc->sc_freetds; 474 sc->sc_freetds = std; 475 splx(s); 476 } 477 478 usbd_status 479 ohci_alloc_std_chain(opipe, sc, alen, rd, xfer, sp, ep) 480 struct ohci_pipe *opipe; 481 ohci_softc_t *sc; 482 int alen, rd; 483 usbd_xfer_handle xfer; 484 ohci_soft_td_t *sp, **ep; 485 { 486 ohci_soft_td_t *next, *cur; 487 ohci_physaddr_t dataphys, dataphysend; 488 u_int32_t tdflags; 489 int len, curlen; 490 usb_dma_t *dma = &xfer->dmabuf; 491 u_int16_t flags = xfer->flags; 492 493 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 494 495 len = alen; 496 cur = sp; 497 dataphys = DMAADDR(dma); 498 dataphysend = OHCI_PAGE(dataphys + len - 1); 499 tdflags = htole32( 500 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 501 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 502 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 503 504 for (;;) { 505 next = ohci_alloc_std(sc); 506 if (next == NULL) 507 goto nomem; 508 509 /* The OHCI hardware can handle at most one page crossing. */ 510 if (OHCI_PAGE(dataphys) == dataphysend || 511 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 512 /* we can handle it in this TD */ 513 curlen = len; 514 } else { 515 /* must use multiple TDs, fill as much as possible. */ 516 curlen = 2 * OHCI_PAGE_SIZE - 517 (dataphys & (OHCI_PAGE_SIZE-1)); 518 /* the length must be a multiple of the max size */ 519 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 520 #ifdef DIAGNOSTIC 521 if (curlen == 0) 522 panic("ohci_alloc_std: curlen == 0\n"); 523 #endif 524 } 525 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 526 "dataphysend=0x%08x len=%d curlen=%d\n", 527 dataphys, dataphysend, 528 len, curlen)); 529 len -= curlen; 530 531 cur->td.td_flags = tdflags; 532 cur->td.td_cbp = htole32(dataphys); 533 cur->nexttd = next; 534 cur->td.td_nexttd = htole32(next->physaddr); 535 cur->td.td_be = htole32(dataphys + curlen - 1); 536 cur->len = curlen; 537 cur->flags = OHCI_ADD_LEN; 538 cur->xfer = xfer; 539 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 540 dataphys, dataphys + curlen - 1)); 541 if (len == 0) 542 break; 543 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 544 dataphys += curlen; 545 cur = next; 546 } 547 if ((flags & USBD_FORCE_SHORT_XFER) && 548 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 549 /* Force a 0 length transfer at the end. */ 550 551 cur = next; 552 next = ohci_alloc_std(sc); 553 if (next == NULL) 554 goto nomem; 555 556 cur->td.td_flags = tdflags; 557 cur->td.td_cbp = 0; /* indicate 0 length packet */ 558 cur->nexttd = next; 559 cur->td.td_nexttd = htole32(next->physaddr); 560 cur->td.td_be = ~0; 561 cur->len = 0; 562 cur->flags = 0; 563 cur->xfer = xfer; 564 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 565 } 566 *ep = cur; 567 568 return (USBD_NORMAL_COMPLETION); 569 570 nomem: 571 /* XXX free chain */ 572 return (USBD_NOMEM); 573 } 574 575 #if 0 576 Static void 577 ohci_free_std_chain(sc, std, stdend) 578 ohci_softc_t *sc; 579 ohci_soft_td_t *std; 580 ohci_soft_td_t *stdend; 581 { 582 ohci_soft_td_t *p; 583 584 for (; std != stdend; std = p) { 585 p = std->nexttd; 586 ohci_free_std(sc, std); 587 } 588 } 589 #endif 590 591 ohci_soft_itd_t * 592 ohci_alloc_sitd(sc) 593 ohci_softc_t *sc; 594 { 595 ohci_soft_itd_t *sitd; 596 usbd_status err; 597 int i, s, offs; 598 usb_dma_t dma; 599 600 if (sc->sc_freeitds == NULL) { 601 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 602 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 603 OHCI_ITD_ALIGN, &dma); 604 if (err) 605 return (NULL); 606 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 607 offs = i * OHCI_SITD_SIZE; 608 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 609 sitd->physaddr = DMAADDR(&dma) + offs; 610 sitd->nextitd = sc->sc_freeitds; 611 sc->sc_freeitds = sitd; 612 } 613 } 614 615 s = splusb(); 616 sitd = sc->sc_freeitds; 617 sc->sc_freeitds = sitd->nextitd; 618 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 619 sitd->nextitd = NULL; 620 sitd->xfer = NULL; 621 ohci_hash_add_itd(sc, sitd); 622 splx(s); 623 624 #ifdef DIAGNOSTIC 625 sitd->isdone = 0; 626 #endif 627 628 return (sitd); 629 } 630 631 void 632 ohci_free_sitd(sc, sitd) 633 ohci_softc_t *sc; 634 ohci_soft_itd_t *sitd; 635 { 636 int s; 637 638 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 639 640 #ifdef DIAGNOSTIC 641 if (!sitd->isdone) { 642 panic("ohci_free_sitd: sitd=%p not done\n", sitd); 643 return; 644 } 645 #endif 646 647 s = splusb(); 648 ohci_hash_rem_itd(sc, sitd); 649 sitd->nextitd = sc->sc_freeitds; 650 sc->sc_freeitds = sitd; 651 splx(s); 652 } 653 654 usbd_status 655 ohci_init(sc) 656 ohci_softc_t *sc; 657 { 658 ohci_soft_ed_t *sed, *psed; 659 usbd_status err; 660 int i; 661 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 662 663 DPRINTF(("ohci_init: start\n")); 664 #if defined(__OpenBSD__) 665 printf(","); 666 #else 667 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 668 #endif 669 rev = OREAD4(sc, OHCI_REVISION); 670 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 671 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 672 673 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 674 printf("%s: unsupported OHCI revision\n", 675 USBDEVNAME(sc->sc_bus.bdev)); 676 sc->sc_bus.usbrev = USBREV_UNKNOWN; 677 return (USBD_INVAL); 678 } 679 sc->sc_bus.usbrev = USBREV_1_0; 680 681 for (i = 0; i < OHCI_HASH_SIZE; i++) 682 LIST_INIT(&sc->sc_hash_tds[i]); 683 for (i = 0; i < OHCI_HASH_SIZE; i++) 684 LIST_INIT(&sc->sc_hash_itds[i]); 685 686 SIMPLEQ_INIT(&sc->sc_free_xfers); 687 688 /* XXX determine alignment by R/W */ 689 /* Allocate the HCCA area. */ 690 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 691 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 692 if (err) 693 return (err); 694 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 695 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 696 697 sc->sc_eintrs = OHCI_NORMAL_INTRS; 698 699 /* Allocate dummy ED that starts the control list. */ 700 sc->sc_ctrl_head = ohci_alloc_sed(sc); 701 if (sc->sc_ctrl_head == NULL) { 702 err = USBD_NOMEM; 703 goto bad1; 704 } 705 sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 706 707 /* Allocate dummy ED that starts the bulk list. */ 708 sc->sc_bulk_head = ohci_alloc_sed(sc); 709 if (sc->sc_bulk_head == NULL) { 710 err = USBD_NOMEM; 711 goto bad2; 712 } 713 sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 714 715 /* Allocate dummy ED that starts the isochronous list. */ 716 sc->sc_isoc_head = ohci_alloc_sed(sc); 717 if (sc->sc_isoc_head == NULL) { 718 err = USBD_NOMEM; 719 goto bad3; 720 } 721 sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 722 723 /* Allocate all the dummy EDs that make up the interrupt tree. */ 724 for (i = 0; i < OHCI_NO_EDS; i++) { 725 sed = ohci_alloc_sed(sc); 726 if (sed == NULL) { 727 while (--i >= 0) 728 ohci_free_sed(sc, sc->sc_eds[i]); 729 err = USBD_NOMEM; 730 goto bad4; 731 } 732 /* All ED fields are set to 0. */ 733 sc->sc_eds[i] = sed; 734 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 735 if (i != 0) 736 psed = sc->sc_eds[(i-1) / 2]; 737 else 738 psed= sc->sc_isoc_head; 739 sed->next = psed; 740 sed->ed.ed_nexted = htole32(psed->physaddr); 741 } 742 /* 743 * Fill HCCA interrupt table. The bit reversal is to get 744 * the tree set up properly to spread the interrupts. 745 */ 746 for (i = 0; i < OHCI_NO_INTRS; i++) 747 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 748 htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 749 750 #ifdef OHCI_DEBUG 751 if (ohcidebug > 15) { 752 for (i = 0; i < OHCI_NO_EDS; i++) { 753 printf("ed#%d ", i); 754 ohci_dump_ed(sc->sc_eds[i]); 755 } 756 printf("iso "); 757 ohci_dump_ed(sc->sc_isoc_head); 758 } 759 #endif 760 761 /* Determine in what context we are running. */ 762 ctl = OREAD4(sc, OHCI_CONTROL); 763 if (ctl & OHCI_IR) { 764 /* SMM active, request change */ 765 DPRINTF(("ohci_init: SMM active, request owner change\n")); 766 s = OREAD4(sc, OHCI_COMMAND_STATUS); 767 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 768 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 769 usb_delay_ms(&sc->sc_bus, 1); 770 ctl = OREAD4(sc, OHCI_CONTROL); 771 } 772 if ((ctl & OHCI_IR) == 0) { 773 printf("%s: SMM does not respond, resetting\n", 774 USBDEVNAME(sc->sc_bus.bdev)); 775 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 776 goto reset; 777 } 778 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 779 /* BIOS started controller. */ 780 DPRINTF(("ohci_init: BIOS active\n")); 781 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 782 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 783 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 784 } 785 } else { 786 DPRINTF(("ohci_init: cold started\n")); 787 reset: 788 /* Controller was cold started. */ 789 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 790 } 791 792 /* 793 * This reset should not be necessary according to the OHCI spec, but 794 * without it some controllers do not start. 795 */ 796 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 797 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 798 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 799 800 /* We now own the host controller and the bus has been reset. */ 801 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 802 803 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 804 /* Nominal time for a reset is 10 us. */ 805 for (i = 0; i < 10; i++) { 806 delay(10); 807 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 808 if (!hcr) 809 break; 810 } 811 if (hcr) { 812 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 813 err = USBD_IOERROR; 814 goto bad5; 815 } 816 #ifdef OHCI_DEBUG 817 if (ohcidebug > 15) 818 ohci_dumpregs(sc); 819 #endif 820 821 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 822 823 /* Set up HC registers. */ 824 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 825 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 826 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 827 /* disable all interrupts and then switch on all desired interrupts */ 828 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 829 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 830 /* switch on desired functional features */ 831 ctl = OREAD4(sc, OHCI_CONTROL); 832 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 833 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 834 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 835 /* And finally start it! */ 836 OWRITE4(sc, OHCI_CONTROL, ctl); 837 838 /* 839 * The controller is now OPERATIONAL. Set a some final 840 * registers that should be set earlier, but that the 841 * controller ignores when in the SUSPEND state. 842 */ 843 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 844 fm |= OHCI_FSMPS(ival) | ival; 845 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 846 per = OHCI_PERIODIC(ival); /* 90% periodic */ 847 OWRITE4(sc, OHCI_PERIODIC_START, per); 848 849 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 850 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 851 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 852 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 853 usb_delay_ms(&sc->sc_bus, 5); 854 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 855 856 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 857 858 #ifdef OHCI_DEBUG 859 if (ohcidebug > 5) 860 ohci_dumpregs(sc); 861 #endif 862 863 /* Set up the bus struct. */ 864 sc->sc_bus.methods = &ohci_bus_methods; 865 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 866 867 #if defined(__NetBSD__) || defined(__OpenBSD__) 868 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 869 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 870 #endif 871 872 return (USBD_NORMAL_COMPLETION); 873 874 bad5: 875 for (i = 0; i < OHCI_NO_EDS; i++) 876 ohci_free_sed(sc, sc->sc_eds[i]); 877 bad4: 878 ohci_free_sed(sc, sc->sc_isoc_head); 879 bad3: 880 ohci_free_sed(sc, sc->sc_ctrl_head); 881 bad2: 882 ohci_free_sed(sc, sc->sc_bulk_head); 883 bad1: 884 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 885 return (err); 886 } 887 888 usbd_status 889 ohci_allocm(bus, dma, size) 890 struct usbd_bus *bus; 891 usb_dma_t *dma; 892 u_int32_t size; 893 { 894 #if defined(__NetBSD__) || defined(__OpenBSD__) 895 struct ohci_softc *sc = (struct ohci_softc *)bus; 896 #endif 897 898 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 899 } 900 901 void 902 ohci_freem(bus, dma) 903 struct usbd_bus *bus; 904 usb_dma_t *dma; 905 { 906 #if defined(__NetBSD__) || defined(__OpenBSD__) 907 struct ohci_softc *sc = (struct ohci_softc *)bus; 908 #endif 909 910 usb_freemem(&sc->sc_bus, dma); 911 } 912 913 usbd_xfer_handle 914 ohci_allocx(bus) 915 struct usbd_bus *bus; 916 { 917 struct ohci_softc *sc = (struct ohci_softc *)bus; 918 usbd_xfer_handle xfer; 919 920 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 921 if (xfer != NULL) 922 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 923 else 924 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 925 if (xfer != NULL) 926 memset(xfer, 0, sizeof *xfer); 927 return (xfer); 928 } 929 930 void 931 ohci_freex(bus, xfer) 932 struct usbd_bus *bus; 933 usbd_xfer_handle xfer; 934 { 935 struct ohci_softc *sc = (struct ohci_softc *)bus; 936 937 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 938 } 939 940 /* 941 * Shut down the controller when the system is going down. 942 */ 943 void 944 ohci_shutdown(v) 945 void *v; 946 { 947 ohci_softc_t *sc = v; 948 949 DPRINTF(("ohci_shutdown: stopping the HC\n")); 950 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 951 } 952 953 /* 954 * Handle suspend/resume. 955 * 956 * We need to switch to polling mode here, because this routine is 957 * called from an intterupt context. This is all right since we 958 * are almost suspended anyway. 959 */ 960 void 961 ohci_power(why, v) 962 int why; 963 void *v; 964 { 965 #ifdef OHCI_DEBUG 966 ohci_softc_t *sc = v; 967 968 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 969 /* XXX should suspend/resume */ 970 ohci_dumpregs(sc); 971 #endif 972 } 973 974 #ifdef OHCI_DEBUG 975 void 976 ohci_dumpregs(sc) 977 ohci_softc_t *sc; 978 { 979 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 980 OREAD4(sc, OHCI_REVISION), 981 OREAD4(sc, OHCI_CONTROL), 982 OREAD4(sc, OHCI_COMMAND_STATUS))); 983 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 984 OREAD4(sc, OHCI_INTERRUPT_STATUS), 985 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 986 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 987 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 988 OREAD4(sc, OHCI_HCCA), 989 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 990 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 991 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 992 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 993 OREAD4(sc, OHCI_BULK_HEAD_ED), 994 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 995 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 996 OREAD4(sc, OHCI_DONE_HEAD), 997 OREAD4(sc, OHCI_FM_INTERVAL), 998 OREAD4(sc, OHCI_FM_REMAINING))); 999 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1000 OREAD4(sc, OHCI_FM_NUMBER), 1001 OREAD4(sc, OHCI_PERIODIC_START), 1002 OREAD4(sc, OHCI_LS_THRESHOLD))); 1003 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1004 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1005 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1006 OREAD4(sc, OHCI_RH_STATUS))); 1007 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1008 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1009 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1010 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1011 le32toh(sc->sc_hcca->hcca_frame_number), 1012 le32toh(sc->sc_hcca->hcca_done_head))); 1013 } 1014 #endif 1015 1016 Static int ohci_intr1 __P((ohci_softc_t *)); 1017 1018 int 1019 ohci_intr(p) 1020 void *p; 1021 { 1022 ohci_softc_t *sc = p; 1023 1024 /* If we get an interrupt while polling, then just ignore it. */ 1025 if (sc->sc_bus.use_polling) { 1026 #ifdef DIAGNOSTIC 1027 printf("ohci_intr: ignored interrupt while polling\n"); 1028 #endif 1029 return (0); 1030 } 1031 1032 return (ohci_intr1(sc)); 1033 } 1034 1035 Static int 1036 ohci_intr1(sc) 1037 ohci_softc_t *sc; 1038 { 1039 u_int32_t intrs, eintrs; 1040 ohci_physaddr_t done; 1041 1042 /* In case the interrupt occurs before initialization has completed. */ 1043 if (sc == NULL || sc->sc_hcca == NULL) { 1044 #ifdef DIAGNOSTIC 1045 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1046 #endif 1047 return (0); 1048 } 1049 1050 intrs = 0; 1051 done = le32toh(sc->sc_hcca->hcca_done_head); 1052 if (done != 0) { 1053 if (done & ~OHCI_DONE_INTRS) 1054 intrs = OHCI_WDH; 1055 if (done & OHCI_DONE_INTRS) 1056 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 1057 } else 1058 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1059 1060 if (!intrs) 1061 return (0); 1062 1063 intrs &= ~OHCI_MIE; 1064 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1065 eintrs = intrs & sc->sc_eintrs; 1066 if (!eintrs) 1067 return (0); 1068 1069 sc->sc_bus.intr_context++; 1070 sc->sc_bus.no_intrs++; 1071 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1072 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1073 (u_int)eintrs)); 1074 1075 if (eintrs & OHCI_SO) { 1076 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1077 /* XXX do what */ 1078 intrs &= ~OHCI_SO; 1079 } 1080 if (eintrs & OHCI_WDH) { 1081 ohci_add_done(sc, done &~ OHCI_DONE_INTRS); 1082 sc->sc_hcca->hcca_done_head = 0; 1083 usb_schedsoftintr(&sc->sc_bus); 1084 intrs &= ~OHCI_WDH; 1085 } 1086 if (eintrs & OHCI_RD) { 1087 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1088 /* XXX process resume detect */ 1089 } 1090 if (eintrs & OHCI_UE) { 1091 printf("%s: unrecoverable error, controller halted\n", 1092 USBDEVNAME(sc->sc_bus.bdev)); 1093 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1094 /* XXX what else */ 1095 } 1096 if (eintrs & OHCI_RHSC) { 1097 ohci_rhsc(sc, sc->sc_intrxfer); 1098 intrs &= ~OHCI_RHSC; 1099 1100 /* 1101 * Disable RHSC interrupt for now, because it will be 1102 * on until the port has been reset. 1103 */ 1104 ohci_rhsc_able(sc, 0); 1105 } 1106 1107 sc->sc_bus.intr_context--; 1108 1109 /* Block unprocessed interrupts. XXX */ 1110 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1111 sc->sc_eintrs &= ~intrs; 1112 1113 return (1); 1114 } 1115 1116 void 1117 ohci_rhsc_able(sc, on) 1118 ohci_softc_t *sc; 1119 int on; 1120 { 1121 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1122 if (on) { 1123 sc->sc_eintrs |= OHCI_RHSC; 1124 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1125 } else { 1126 sc->sc_eintrs &= ~OHCI_RHSC; 1127 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1128 } 1129 } 1130 1131 #ifdef OHCI_DEBUG 1132 char *ohci_cc_strs[] = { 1133 "NO_ERROR", 1134 "CRC", 1135 "BIT_STUFFING", 1136 "DATA_TOGGLE_MISMATCH", 1137 "STALL", 1138 "DEVICE_NOT_RESPONDING", 1139 "PID_CHECK_FAILURE", 1140 "UNEXPECTED_PID", 1141 "DATA_OVERRUN", 1142 "DATA_UNDERRUN", 1143 "BUFFER_OVERRUN", 1144 "BUFFER_UNDERRUN", 1145 "reserved", 1146 "reserved", 1147 "NOT_ACCESSED", 1148 "NOT_ACCESSED", 1149 }; 1150 #endif 1151 1152 void 1153 ohci_add_done(sc, done) 1154 ohci_softc_t *sc; 1155 ohci_physaddr_t done; 1156 { 1157 ohci_soft_itd_t *sitd, *sidone, **ip; 1158 ohci_soft_td_t *std, *sdone, **p; 1159 1160 /* Reverse the done list. */ 1161 for (sdone = NULL, sidone = NULL; done != 0; ) { 1162 std = ohci_hash_find_td(sc, done); 1163 if (std != NULL) { 1164 std->dnext = sdone; 1165 done = le32toh(std->td.td_nexttd); 1166 sdone = std; 1167 DPRINTFN(10,("add TD %p\n", std)); 1168 continue; 1169 } 1170 sitd = ohci_hash_find_itd(sc, done); 1171 if (sitd != NULL) { 1172 sitd->dnext = sidone; 1173 done = le32toh(sitd->itd.itd_nextitd); 1174 sidone = sitd; 1175 DPRINTFN(5,("add ITD %p\n", sitd)); 1176 continue; 1177 } 1178 panic("ohci_add_done: addr 0x%08lx not found\n", (u_long)done); 1179 } 1180 1181 /* sdone & sidone now hold the done lists. */ 1182 /* Put them on the already processed lists. */ 1183 for (p = &sc->sc_sdone; *p != NULL; p = &(*p)->dnext) 1184 ; 1185 *p = sdone; 1186 for (ip = &sc->sc_sidone; *ip != NULL; ip = &(*ip)->dnext) 1187 ; 1188 *ip = sidone; 1189 } 1190 1191 void baaz(void); 1192 void baaz(void) {} 1193 1194 void 1195 ohci_softintr(bus) 1196 struct usbd_bus *bus; 1197 { 1198 ohci_softc_t *sc = (ohci_softc_t *)bus; 1199 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1200 ohci_soft_td_t *std, *sdone, *stdnext; 1201 usbd_xfer_handle xfer; 1202 int len, cc, s; 1203 1204 sc->sc_bus.intr_context++; 1205 1206 s = splhardusb(); 1207 sdone = sc->sc_sdone; 1208 sc->sc_sdone = NULL; 1209 sidone = sc->sc_sidone; 1210 sc->sc_sidone = NULL; 1211 splx(s); 1212 1213 DPRINTFN(10,("ohci_process_done: sdone=%p sidone=%p\n", sdone, sidone)); 1214 1215 #ifdef OHCI_DEBUG 1216 if (ohcidebug > 10) { 1217 DPRINTF(("ohci_process_done: TD done:\n")); 1218 ohci_dump_tds(sdone); 1219 } 1220 #endif 1221 1222 for (std = sdone; std; std = stdnext) { 1223 xfer = std->xfer; 1224 stdnext = std->dnext; 1225 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1226 std, xfer, xfer ? xfer->hcpriv : 0)); 1227 if (xfer == NULL) { 1228 /* xfer == NULL: There seems to be no xfer associated 1229 * with this TD. It is tailp that happened to end up on 1230 * the done queue. 1231 */ 1232 continue; 1233 } 1234 if (xfer->status == USBD_CANCELLED || 1235 xfer->status == USBD_TIMEOUT) { 1236 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1237 xfer)); 1238 /* Handled by abort routine. */ 1239 continue; 1240 } 1241 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1242 cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags)); 1243 if (cc == OHCI_CC_NO_ERROR) { 1244 len = std->len; 1245 if (std->td.td_cbp != 0) 1246 len -= le32toh(std->td.td_be) - 1247 le32toh(std->td.td_cbp) + 1; 1248 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", 1249 len, std->flags)); 1250 if (std->flags & OHCI_ADD_LEN) 1251 xfer->actlen += len; 1252 if (std->flags & OHCI_CALL_DONE) { 1253 xfer->status = USBD_NORMAL_COMPLETION; 1254 usb_transfer_complete(xfer); 1255 } 1256 ohci_free_std(sc, std); 1257 } else { 1258 /* 1259 * Endpoint is halted. First unlink all the TDs 1260 * belonging to the failed transfer, and then restart 1261 * the endpoint. 1262 */ 1263 ohci_soft_td_t *p, *n; 1264 struct ohci_pipe *opipe = 1265 (struct ohci_pipe *)xfer->pipe; 1266 1267 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1268 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1269 ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))])); 1270 1271 /* remove TDs */ 1272 for (p = std; p->xfer == xfer; p = n) { 1273 n = p->nexttd; 1274 ohci_free_std(sc, p); 1275 } 1276 1277 /* clear halt */ 1278 opipe->sed->ed.ed_headp = htole32(p->physaddr); 1279 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1280 1281 if (cc == OHCI_CC_STALL) 1282 xfer->status = USBD_STALLED; 1283 else 1284 xfer->status = USBD_IOERROR; 1285 usb_transfer_complete(xfer); 1286 } 1287 } 1288 1289 #ifdef OHCI_DEBUG 1290 if (ohcidebug > 10) { 1291 DPRINTF(("ohci_process_done: ITD done:\n")); 1292 ohci_dump_itds(sidone); 1293 } 1294 #endif 1295 1296 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1297 xfer = sitd->xfer; 1298 sitdnext = sitd->dnext; 1299 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1300 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1301 if (xfer == NULL) 1302 continue; 1303 if (xfer->status == USBD_CANCELLED || 1304 xfer->status == USBD_TIMEOUT) { 1305 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1306 xfer)); 1307 /* Handled by abort routine. */ 1308 continue; 1309 } 1310 #ifdef DIAGNOSTIC 1311 if (sitd->isdone) 1312 printf("ohci_softintr: sitd=%p is done\n", sitd); 1313 sitd->isdone = 1; 1314 #endif 1315 cc = OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)); 1316 if (cc == OHCI_CC_NO_ERROR) { 1317 /* XXX compute length for input */ 1318 struct ohci_pipe *opipe = 1319 (struct ohci_pipe *)xfer->pipe; 1320 if (sitd->flags & OHCI_CALL_DONE) { 1321 opipe->u.iso.inuse -= xfer->nframes; 1322 /* XXX xfer->actlen = actlen; */ 1323 xfer->status = USBD_NORMAL_COMPLETION; 1324 usb_transfer_complete(xfer); 1325 } 1326 } else { 1327 /* XXX Do more */ 1328 xfer->status = USBD_IOERROR; 1329 usb_transfer_complete(xfer); 1330 } 1331 } 1332 1333 sc->sc_bus.intr_context--; 1334 } 1335 1336 void 1337 ohci_device_ctrl_done(xfer) 1338 usbd_xfer_handle xfer; 1339 { 1340 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1341 1342 #ifdef DIAGNOSTIC 1343 if (!(xfer->rqflags & URQ_REQUEST)) { 1344 panic("ohci_ctrl_done: not a request\n"); 1345 } 1346 #endif 1347 xfer->hcpriv = NULL; 1348 } 1349 1350 void 1351 ohci_device_intr_done(xfer) 1352 usbd_xfer_handle xfer; 1353 { 1354 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1355 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1356 ohci_soft_ed_t *sed = opipe->sed; 1357 ohci_soft_td_t *data, *tail; 1358 1359 1360 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1361 xfer, xfer->actlen)); 1362 1363 xfer->hcpriv = NULL; 1364 1365 if (xfer->pipe->repeat) { 1366 data = opipe->tail.td; 1367 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1368 if (tail == NULL) { 1369 xfer->status = USBD_NOMEM; 1370 return; 1371 } 1372 tail->xfer = NULL; 1373 1374 data->td.td_flags = htole32( 1375 OHCI_TD_IN | OHCI_TD_NOCC | 1376 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1377 if (xfer->flags & USBD_SHORT_XFER_OK) 1378 data->td.td_flags |= htole32(OHCI_TD_R); 1379 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 1380 data->nexttd = tail; 1381 data->td.td_nexttd = htole32(tail->physaddr); 1382 data->td.td_be = htole32(le32toh(data->td.td_cbp) + 1383 xfer->length - 1); 1384 data->len = xfer->length; 1385 data->xfer = xfer; 1386 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1387 xfer->hcpriv = data; 1388 xfer->actlen = 0; 1389 1390 sed->ed.ed_tailp = htole32(tail->physaddr); 1391 opipe->tail.td = tail; 1392 } 1393 } 1394 1395 void 1396 ohci_device_bulk_done(xfer) 1397 usbd_xfer_handle xfer; 1398 { 1399 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1400 xfer, xfer->actlen)); 1401 1402 xfer->hcpriv = NULL; 1403 } 1404 1405 void 1406 ohci_rhsc(sc, xfer) 1407 ohci_softc_t *sc; 1408 usbd_xfer_handle xfer; 1409 { 1410 usbd_pipe_handle pipe; 1411 struct ohci_pipe *opipe; 1412 u_char *p; 1413 int i, m; 1414 int hstatus; 1415 1416 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1417 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1418 sc, xfer, hstatus)); 1419 1420 if (xfer == NULL) { 1421 /* Just ignore the change. */ 1422 return; 1423 } 1424 1425 pipe = xfer->pipe; 1426 opipe = (struct ohci_pipe *)pipe; 1427 1428 p = KERNADDR(&xfer->dmabuf); 1429 m = min(sc->sc_noport, xfer->length * 8 - 1); 1430 memset(p, 0, xfer->length); 1431 for (i = 1; i <= m; i++) { 1432 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1433 p[i/8] |= 1 << (i%8); 1434 } 1435 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1436 xfer->actlen = xfer->length; 1437 xfer->status = USBD_NORMAL_COMPLETION; 1438 1439 usb_transfer_complete(xfer); 1440 } 1441 1442 void 1443 ohci_root_intr_done(xfer) 1444 usbd_xfer_handle xfer; 1445 { 1446 xfer->hcpriv = NULL; 1447 } 1448 1449 void 1450 ohci_root_ctrl_done(xfer) 1451 usbd_xfer_handle xfer; 1452 { 1453 xfer->hcpriv = NULL; 1454 } 1455 1456 /* 1457 * Wait here until controller claims to have an interrupt. 1458 * Then call ohci_intr and return. Use timeout to avoid waiting 1459 * too long. 1460 */ 1461 void 1462 ohci_waitintr(sc, xfer) 1463 ohci_softc_t *sc; 1464 usbd_xfer_handle xfer; 1465 { 1466 int timo = xfer->timeout; 1467 int usecs; 1468 u_int32_t intrs; 1469 1470 xfer->status = USBD_IN_PROGRESS; 1471 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1472 usb_delay_ms(&sc->sc_bus, 1); 1473 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1474 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1475 #ifdef OHCI_DEBUG 1476 if (ohcidebug > 15) 1477 ohci_dumpregs(sc); 1478 #endif 1479 if (intrs) { 1480 ohci_intr1(sc); 1481 if (xfer->status != USBD_IN_PROGRESS) 1482 return; 1483 } 1484 } 1485 1486 /* Timeout */ 1487 DPRINTF(("ohci_waitintr: timeout\n")); 1488 xfer->status = USBD_TIMEOUT; 1489 usb_transfer_complete(xfer); 1490 /* XXX should free TD */ 1491 } 1492 1493 void 1494 ohci_poll(bus) 1495 struct usbd_bus *bus; 1496 { 1497 ohci_softc_t *sc = (ohci_softc_t *)bus; 1498 1499 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1500 ohci_intr1(sc); 1501 } 1502 1503 usbd_status 1504 ohci_device_request(xfer) 1505 usbd_xfer_handle xfer; 1506 { 1507 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1508 usb_device_request_t *req = &xfer->request; 1509 usbd_device_handle dev = opipe->pipe.device; 1510 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1511 int addr = dev->address; 1512 ohci_soft_td_t *setup, *stat, *next, *tail; 1513 ohci_soft_ed_t *sed; 1514 int isread; 1515 int len; 1516 usbd_status err; 1517 int s; 1518 1519 isread = req->bmRequestType & UT_READ; 1520 len = UGETW(req->wLength); 1521 1522 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1523 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1524 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1525 UGETW(req->wIndex), len, addr, 1526 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1527 1528 setup = opipe->tail.td; 1529 stat = ohci_alloc_std(sc); 1530 if (stat == NULL) { 1531 err = USBD_NOMEM; 1532 goto bad1; 1533 } 1534 tail = ohci_alloc_std(sc); 1535 if (tail == NULL) { 1536 err = USBD_NOMEM; 1537 goto bad2; 1538 } 1539 tail->xfer = NULL; 1540 1541 sed = opipe->sed; 1542 opipe->u.ctl.length = len; 1543 1544 /* Update device address and length since they may have changed. */ 1545 /* XXX This only needs to be done once, but it's too early in open. */ 1546 /* XXXX Should not touch ED here! */ 1547 sed->ed.ed_flags = htole32( 1548 (le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1549 OHCI_ED_SET_FA(addr) | 1550 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1551 1552 next = stat; 1553 1554 /* Set up data transaction */ 1555 if (len != 0) { 1556 ohci_soft_td_t *std = stat; 1557 1558 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1559 std, &stat); 1560 stat = stat->nexttd; /* point at free TD */ 1561 if (err) 1562 goto bad3; 1563 /* Start toggle at 1 and then use the carried toggle. */ 1564 std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK); 1565 std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1); 1566 } 1567 1568 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1569 1570 setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1571 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1572 setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma)); 1573 setup->nexttd = next; 1574 setup->td.td_nexttd = htole32(next->physaddr); 1575 setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1); 1576 setup->len = 0; 1577 setup->xfer = xfer; 1578 setup->flags = 0; 1579 xfer->hcpriv = setup; 1580 1581 stat->td.td_flags = htole32( 1582 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1583 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1584 stat->td.td_cbp = 0; 1585 stat->nexttd = tail; 1586 stat->td.td_nexttd = htole32(tail->physaddr); 1587 stat->td.td_be = 0; 1588 stat->flags = OHCI_CALL_DONE; 1589 stat->len = 0; 1590 stat->xfer = xfer; 1591 1592 #ifdef OHCI_DEBUG 1593 if (ohcidebug > 5) { 1594 DPRINTF(("ohci_device_request:\n")); 1595 ohci_dump_ed(sed); 1596 ohci_dump_tds(setup); 1597 } 1598 #endif 1599 1600 /* Insert ED in schedule */ 1601 s = splusb(); 1602 sed->ed.ed_tailp = htole32(tail->physaddr); 1603 opipe->tail.td = tail; 1604 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1605 if (xfer->timeout && !sc->sc_bus.use_polling) { 1606 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1607 ohci_timeout, xfer); 1608 } 1609 splx(s); 1610 1611 #if 0 1612 if (ohcidebug > 10) { 1613 delay(10000); 1614 DPRINTF(("ohci_device_request: status=%x\n", 1615 OREAD4(sc, OHCI_COMMAND_STATUS))); 1616 ohci_dump_ed(sed); 1617 ohci_dump_tds(setup); 1618 } 1619 #endif 1620 1621 return (USBD_NORMAL_COMPLETION); 1622 1623 bad3: 1624 ohci_free_std(sc, tail); 1625 bad2: 1626 ohci_free_std(sc, stat); 1627 bad1: 1628 return (err); 1629 } 1630 1631 /* 1632 * Add an ED to the schedule. Called at splusb(). 1633 */ 1634 void 1635 ohci_add_ed(sed, head) 1636 ohci_soft_ed_t *sed; 1637 ohci_soft_ed_t *head; 1638 { 1639 SPLUSBCHECK; 1640 sed->next = head->next; 1641 sed->ed.ed_nexted = head->ed.ed_nexted; 1642 head->next = sed; 1643 head->ed.ed_nexted = htole32(sed->physaddr); 1644 } 1645 1646 /* 1647 * Remove an ED from the schedule. Called at splusb(). 1648 */ 1649 void 1650 ohci_rem_ed(sed, head) 1651 ohci_soft_ed_t *sed; 1652 ohci_soft_ed_t *head; 1653 { 1654 ohci_soft_ed_t *p; 1655 1656 SPLUSBCHECK; 1657 1658 /* XXX */ 1659 for (p = head; p == NULL && p->next != sed; p = p->next) 1660 ; 1661 if (p == NULL) 1662 panic("ohci_rem_ed: ED not found\n"); 1663 p->next = sed->next; 1664 p->ed.ed_nexted = sed->ed.ed_nexted; 1665 } 1666 1667 /* 1668 * When a transfer is completed the TD is added to the done queue by 1669 * the host controller. This queue is the processed by software. 1670 * Unfortunately the queue contains the physical address of the TD 1671 * and we have no simple way to translate this back to a kernel address. 1672 * To make the translation possible (and fast) we use a hash table of 1673 * TDs currently in the schedule. The physical address is used as the 1674 * hash value. 1675 */ 1676 1677 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1678 /* Called at splusb() */ 1679 void 1680 ohci_hash_add_td(sc, std) 1681 ohci_softc_t *sc; 1682 ohci_soft_td_t *std; 1683 { 1684 int h = HASH(std->physaddr); 1685 1686 SPLUSBCHECK; 1687 1688 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1689 } 1690 1691 /* Called at splusb() */ 1692 void 1693 ohci_hash_rem_td(sc, std) 1694 ohci_softc_t *sc; 1695 ohci_soft_td_t *std; 1696 { 1697 SPLUSBCHECK; 1698 1699 LIST_REMOVE(std, hnext); 1700 } 1701 1702 ohci_soft_td_t * 1703 ohci_hash_find_td(sc, a) 1704 ohci_softc_t *sc; 1705 ohci_physaddr_t a; 1706 { 1707 int h = HASH(a); 1708 ohci_soft_td_t *std; 1709 1710 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1711 std != NULL; 1712 std = LIST_NEXT(std, hnext)) 1713 if (std->physaddr == a) 1714 return (std); 1715 return (NULL); 1716 } 1717 1718 /* Called at splusb() */ 1719 void 1720 ohci_hash_add_itd(sc, sitd) 1721 ohci_softc_t *sc; 1722 ohci_soft_itd_t *sitd; 1723 { 1724 int h = HASH(sitd->physaddr); 1725 1726 SPLUSBCHECK; 1727 1728 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1729 sitd, (u_long)sitd->physaddr)); 1730 1731 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1732 } 1733 1734 /* Called at splusb() */ 1735 void 1736 ohci_hash_rem_itd(sc, sitd) 1737 ohci_softc_t *sc; 1738 ohci_soft_itd_t *sitd; 1739 { 1740 SPLUSBCHECK; 1741 1742 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1743 sitd, (u_long)sitd->physaddr)); 1744 1745 LIST_REMOVE(sitd, hnext); 1746 } 1747 1748 ohci_soft_itd_t * 1749 ohci_hash_find_itd(sc, a) 1750 ohci_softc_t *sc; 1751 ohci_physaddr_t a; 1752 { 1753 int h = HASH(a); 1754 ohci_soft_itd_t *sitd; 1755 1756 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1757 sitd != NULL; 1758 sitd = LIST_NEXT(sitd, hnext)) 1759 if (sitd->physaddr == a) 1760 return (sitd); 1761 return (NULL); 1762 } 1763 1764 void 1765 ohci_timeout(addr) 1766 void *addr; 1767 { 1768 usbd_xfer_handle xfer = addr; 1769 int s; 1770 1771 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1772 1773 s = splusb(); 1774 xfer->device->bus->intr_context++; 1775 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1776 xfer->device->bus->intr_context--; 1777 splx(s); 1778 } 1779 1780 #ifdef OHCI_DEBUG 1781 void 1782 ohci_dump_tds(std) 1783 ohci_soft_td_t *std; 1784 { 1785 for (; std; std = std->nexttd) 1786 ohci_dump_td(std); 1787 } 1788 1789 void 1790 ohci_dump_td(std) 1791 ohci_soft_td_t *std; 1792 { 1793 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1794 "nexttd=0x%08lx be=0x%08lx\n", 1795 std, (u_long)std->physaddr, 1796 (int)le32toh(std->td.td_flags), 1797 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1798 OHCI_TD_GET_DI(le32toh(std->td.td_flags)), 1799 OHCI_TD_GET_EC(le32toh(std->td.td_flags)), 1800 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1801 (u_long)le32toh(std->td.td_cbp), 1802 (u_long)le32toh(std->td.td_nexttd), 1803 (u_long)le32toh(std->td.td_be))); 1804 } 1805 1806 void 1807 ohci_dump_itd(sitd) 1808 ohci_soft_itd_t *sitd; 1809 { 1810 int i; 1811 1812 DPRINTF(("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1813 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1814 sitd, (u_long)sitd->physaddr, 1815 OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)), 1816 OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)), 1817 OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)), 1818 OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)), 1819 (u_long)le32toh(sitd->itd.itd_bp0), 1820 (u_long)le32toh(sitd->itd.itd_nextitd), 1821 (u_long)le32toh(sitd->itd.itd_be))); 1822 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1823 DPRINTF(("offs[%d]=0x%04x ", i, 1824 (u_int)le16toh(sitd->itd.itd_offset[i]))); 1825 DPRINTF(("\n")); 1826 } 1827 1828 void 1829 ohci_dump_itds(sitd) 1830 ohci_soft_itd_t *sitd; 1831 { 1832 for (; sitd; sitd = sitd->nextitd) 1833 ohci_dump_itd(sitd); 1834 } 1835 1836 void 1837 ohci_dump_ed(sed) 1838 ohci_soft_ed_t *sed; 1839 { 1840 DPRINTF(("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1841 "headflags=%b headp=0x%08lx nexted=0x%08lx\n", 1842 sed, (u_long)sed->physaddr, 1843 OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)), 1844 OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)), 1845 OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), 1846 (int)le32toh(sed->ed.ed_flags), 1847 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1848 (u_long)le32toh(sed->ed.ed_tailp), 1849 (u_long)le32toh(sed->ed.ed_headp), 1850 "\20\1HALT\2CARRY", 1851 (u_long)le32toh(sed->ed.ed_headp), 1852 (u_long)le32toh(sed->ed.ed_nexted))); 1853 } 1854 #endif 1855 1856 usbd_status 1857 ohci_open(pipe) 1858 usbd_pipe_handle pipe; 1859 { 1860 usbd_device_handle dev = pipe->device; 1861 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1862 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1863 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1864 u_int8_t addr = dev->address; 1865 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1866 ohci_soft_ed_t *sed; 1867 ohci_soft_td_t *std; 1868 ohci_soft_itd_t *sitd; 1869 ohci_physaddr_t tdphys; 1870 u_int32_t fmt; 1871 usbd_status err; 1872 int s; 1873 int ival; 1874 1875 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1876 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1877 1878 if (addr == sc->sc_addr) { 1879 switch (ed->bEndpointAddress) { 1880 case USB_CONTROL_ENDPOINT: 1881 pipe->methods = &ohci_root_ctrl_methods; 1882 break; 1883 case UE_DIR_IN | OHCI_INTR_ENDPT: 1884 pipe->methods = &ohci_root_intr_methods; 1885 break; 1886 default: 1887 return (USBD_INVAL); 1888 } 1889 } else { 1890 sed = ohci_alloc_sed(sc); 1891 if (sed == NULL) 1892 goto bad0; 1893 opipe->sed = sed; 1894 if (xfertype == UE_ISOCHRONOUS) { 1895 sitd = ohci_alloc_sitd(sc); 1896 if (sitd == NULL) { 1897 ohci_free_sitd(sc, sitd); 1898 goto bad1; 1899 } 1900 opipe->tail.itd = sitd; 1901 tdphys = sitd->physaddr; 1902 fmt = OHCI_ED_FORMAT_ISO; 1903 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 1904 fmt |= OHCI_ED_DIR_IN; 1905 else 1906 fmt |= OHCI_ED_DIR_OUT; 1907 } else { 1908 std = ohci_alloc_std(sc); 1909 if (std == NULL) { 1910 ohci_free_std(sc, std); 1911 goto bad1; 1912 } 1913 opipe->tail.td = std; 1914 tdphys = std->physaddr; 1915 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 1916 } 1917 sed->ed.ed_flags = htole32( 1918 OHCI_ED_SET_FA(addr) | 1919 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1920 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1921 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1922 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 1923 1924 switch (xfertype) { 1925 case UE_CONTROL: 1926 pipe->methods = &ohci_device_ctrl_methods; 1927 err = usb_allocmem(&sc->sc_bus, 1928 sizeof(usb_device_request_t), 1929 0, &opipe->u.ctl.reqdma); 1930 if (err) 1931 goto bad; 1932 s = splusb(); 1933 ohci_add_ed(sed, sc->sc_ctrl_head); 1934 splx(s); 1935 break; 1936 case UE_INTERRUPT: 1937 pipe->methods = &ohci_device_intr_methods; 1938 ival = pipe->interval; 1939 if (ival == USBD_DEFAULT_INTERVAL) 1940 ival = ed->bInterval; 1941 return (ohci_device_setintr(sc, opipe, ival)); 1942 case UE_ISOCHRONOUS: 1943 pipe->methods = &ohci_device_isoc_methods; 1944 return (ohci_setup_isoc(pipe)); 1945 case UE_BULK: 1946 pipe->methods = &ohci_device_bulk_methods; 1947 s = splusb(); 1948 ohci_add_ed(sed, sc->sc_bulk_head); 1949 splx(s); 1950 break; 1951 } 1952 } 1953 return (USBD_NORMAL_COMPLETION); 1954 1955 bad: 1956 ohci_free_std(sc, std); 1957 bad1: 1958 ohci_free_sed(sc, sed); 1959 bad0: 1960 return (USBD_NOMEM); 1961 1962 } 1963 1964 /* 1965 * Close a reqular pipe. 1966 * Assumes that there are no pending transactions. 1967 */ 1968 void 1969 ohci_close_pipe(pipe, head) 1970 usbd_pipe_handle pipe; 1971 ohci_soft_ed_t *head; 1972 { 1973 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1974 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1975 ohci_soft_ed_t *sed = opipe->sed; 1976 int s; 1977 1978 s = splusb(); 1979 #ifdef DIAGNOSTIC 1980 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 1981 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1982 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) { 1983 ohci_physaddr_t td = le32toh(sed->ed.ed_headp); 1984 ohci_soft_td_t *std; 1985 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1986 std != NULL; 1987 std = LIST_NEXT(std, hnext)) 1988 if (std->physaddr == td) 1989 break; 1990 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1991 "tl=0x%x pipe=%p, std=%p\n", sed, 1992 (int)le32toh(sed->ed.ed_headp), 1993 (int)le32toh(sed->ed.ed_tailp), 1994 pipe, std); 1995 usb_delay_ms(&sc->sc_bus, 2); 1996 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1997 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 1998 printf("ohci_close_pipe: pipe still not empty\n"); 1999 } 2000 #endif 2001 ohci_rem_ed(sed, head); 2002 splx(s); 2003 ohci_free_sed(sc, opipe->sed); 2004 } 2005 2006 /* 2007 * Abort a device request. 2008 * If this routine is called at splusb() it guarantees that the request 2009 * will be removed from the hardware scheduling and that the callback 2010 * for it will be called with USBD_CANCELLED status. 2011 * It's impossible to guarantee that the requested transfer will not 2012 * have happened since the hardware runs concurrently. 2013 * If the transaction has already happened we rely on the ordinary 2014 * interrupt processing to process it. 2015 */ 2016 void 2017 ohci_abort_xfer(xfer, status) 2018 usbd_xfer_handle xfer; 2019 usbd_status status; 2020 { 2021 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2022 ohci_soft_ed_t *sed; 2023 2024 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 2025 2026 xfer->status = status; 2027 2028 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2029 2030 sed = opipe->sed; 2031 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2032 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 2033 2034 #if 1 2035 if (xfer->device->bus->intr_context) { 2036 /* We have no process context, so we can't use tsleep(). */ 2037 usb_callout(xfer->pipe->abort_handle, 2038 hz / USB_FRAMES_PER_SECOND, ohci_abort_xfer_end, xfer); 2039 } else { 2040 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 2041 KASSERT(intr_nesting_level == 0, 2042 ("ohci_abort_req in interrupt context")); 2043 #endif 2044 usb_delay_ms(opipe->pipe.device->bus, 1); 2045 ohci_abort_xfer_end(xfer); 2046 } 2047 #else 2048 delay(1000); 2049 ohci_abort_xfer_end(xfer); 2050 #endif 2051 } 2052 2053 void 2054 ohci_abort_xfer_end(v) 2055 void *v; 2056 { 2057 usbd_xfer_handle xfer = v; 2058 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2059 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2060 ohci_soft_ed_t *sed; 2061 ohci_soft_td_t *p, *n; 2062 int s; 2063 2064 s = splusb(); 2065 2066 p = xfer->hcpriv; 2067 #ifdef DIAGNOSTIC 2068 if (p == NULL) { 2069 printf("ohci_abort_xfer: hcpriv==0\n"); 2070 return; 2071 } 2072 #endif 2073 for (; p->xfer == xfer; p = n) { 2074 n = p->nexttd; 2075 ohci_free_std(sc, p); 2076 } 2077 2078 sed = opipe->sed; 2079 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 2080 (int)p->physaddr, (int)le32toh(sed->ed.ed_tailp))); 2081 sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */ 2082 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 2083 2084 usb_transfer_complete(xfer); 2085 2086 splx(s); 2087 } 2088 2089 /* 2090 * Data structures and routines to emulate the root hub. 2091 */ 2092 Static usb_device_descriptor_t ohci_devd = { 2093 USB_DEVICE_DESCRIPTOR_SIZE, 2094 UDESC_DEVICE, /* type */ 2095 {0x00, 0x01}, /* USB version */ 2096 UDCLASS_HUB, /* class */ 2097 UDSUBCLASS_HUB, /* subclass */ 2098 0, /* protocol */ 2099 64, /* max packet */ 2100 {0},{0},{0x00,0x01}, /* device id */ 2101 1,2,0, /* string indicies */ 2102 1 /* # of configurations */ 2103 }; 2104 2105 Static usb_config_descriptor_t ohci_confd = { 2106 USB_CONFIG_DESCRIPTOR_SIZE, 2107 UDESC_CONFIG, 2108 {USB_CONFIG_DESCRIPTOR_SIZE + 2109 USB_INTERFACE_DESCRIPTOR_SIZE + 2110 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2111 1, 2112 1, 2113 0, 2114 UC_SELF_POWERED, 2115 0 /* max power */ 2116 }; 2117 2118 Static usb_interface_descriptor_t ohci_ifcd = { 2119 USB_INTERFACE_DESCRIPTOR_SIZE, 2120 UDESC_INTERFACE, 2121 0, 2122 0, 2123 1, 2124 UICLASS_HUB, 2125 UISUBCLASS_HUB, 2126 0, 2127 0 2128 }; 2129 2130 Static usb_endpoint_descriptor_t ohci_endpd = { 2131 USB_ENDPOINT_DESCRIPTOR_SIZE, 2132 UDESC_ENDPOINT, 2133 UE_DIR_IN | OHCI_INTR_ENDPT, 2134 UE_INTERRUPT, 2135 {8, 0}, /* max packet */ 2136 255 2137 }; 2138 2139 Static usb_hub_descriptor_t ohci_hubd = { 2140 USB_HUB_DESCRIPTOR_SIZE, 2141 UDESC_HUB, 2142 0, 2143 {0,0}, 2144 0, 2145 0, 2146 {0}, 2147 }; 2148 2149 Static int 2150 ohci_str(p, l, s) 2151 usb_string_descriptor_t *p; 2152 int l; 2153 char *s; 2154 { 2155 int i; 2156 2157 if (l == 0) 2158 return (0); 2159 p->bLength = 2 * strlen(s) + 2; 2160 if (l == 1) 2161 return (1); 2162 p->bDescriptorType = UDESC_STRING; 2163 l -= 2; 2164 for (i = 0; s[i] && l > 1; i++, l -= 2) 2165 USETW2(p->bString[i], 0, s[i]); 2166 return (2*i+2); 2167 } 2168 2169 /* 2170 * Simulate a hardware hub by handling all the necessary requests. 2171 */ 2172 Static usbd_status 2173 ohci_root_ctrl_transfer(xfer) 2174 usbd_xfer_handle xfer; 2175 { 2176 usbd_status err; 2177 2178 /* Insert last in queue. */ 2179 err = usb_insert_transfer(xfer); 2180 if (err) 2181 return (err); 2182 2183 /* Pipe isn't running, start first */ 2184 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2185 } 2186 2187 Static usbd_status 2188 ohci_root_ctrl_start(xfer) 2189 usbd_xfer_handle xfer; 2190 { 2191 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2192 usb_device_request_t *req; 2193 void *buf = NULL; 2194 int port, i; 2195 int s, len, value, index, l, totlen = 0; 2196 usb_port_status_t ps; 2197 usb_hub_descriptor_t hubd; 2198 usbd_status err; 2199 u_int32_t v; 2200 2201 if (sc->sc_dying) 2202 return (USBD_IOERROR); 2203 2204 #ifdef DIAGNOSTIC 2205 if (!(xfer->rqflags & URQ_REQUEST)) 2206 /* XXX panic */ 2207 return (USBD_INVAL); 2208 #endif 2209 req = &xfer->request; 2210 2211 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2212 req->bmRequestType, req->bRequest)); 2213 2214 len = UGETW(req->wLength); 2215 value = UGETW(req->wValue); 2216 index = UGETW(req->wIndex); 2217 2218 if (len != 0) 2219 buf = KERNADDR(&xfer->dmabuf); 2220 2221 #define C(x,y) ((x) | ((y) << 8)) 2222 switch(C(req->bRequest, req->bmRequestType)) { 2223 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2224 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2225 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2226 /* 2227 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2228 * for the integrated root hub. 2229 */ 2230 break; 2231 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2232 if (len > 0) { 2233 *(u_int8_t *)buf = sc->sc_conf; 2234 totlen = 1; 2235 } 2236 break; 2237 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2238 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2239 switch(value >> 8) { 2240 case UDESC_DEVICE: 2241 if ((value & 0xff) != 0) { 2242 err = USBD_IOERROR; 2243 goto ret; 2244 } 2245 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2246 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2247 memcpy(buf, &ohci_devd, l); 2248 break; 2249 case UDESC_CONFIG: 2250 if ((value & 0xff) != 0) { 2251 err = USBD_IOERROR; 2252 goto ret; 2253 } 2254 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2255 memcpy(buf, &ohci_confd, l); 2256 buf = (char *)buf + l; 2257 len -= l; 2258 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2259 totlen += l; 2260 memcpy(buf, &ohci_ifcd, l); 2261 buf = (char *)buf + l; 2262 len -= l; 2263 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2264 totlen += l; 2265 memcpy(buf, &ohci_endpd, l); 2266 break; 2267 case UDESC_STRING: 2268 if (len == 0) 2269 break; 2270 *(u_int8_t *)buf = 0; 2271 totlen = 1; 2272 switch (value & 0xff) { 2273 case 1: /* Vendor */ 2274 totlen = ohci_str(buf, len, sc->sc_vendor); 2275 break; 2276 case 2: /* Product */ 2277 totlen = ohci_str(buf, len, "OHCI root hub"); 2278 break; 2279 } 2280 break; 2281 default: 2282 err = USBD_IOERROR; 2283 goto ret; 2284 } 2285 break; 2286 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2287 if (len > 0) { 2288 *(u_int8_t *)buf = 0; 2289 totlen = 1; 2290 } 2291 break; 2292 case C(UR_GET_STATUS, UT_READ_DEVICE): 2293 if (len > 1) { 2294 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2295 totlen = 2; 2296 } 2297 break; 2298 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2299 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2300 if (len > 1) { 2301 USETW(((usb_status_t *)buf)->wStatus, 0); 2302 totlen = 2; 2303 } 2304 break; 2305 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2306 if (value >= USB_MAX_DEVICES) { 2307 err = USBD_IOERROR; 2308 goto ret; 2309 } 2310 sc->sc_addr = value; 2311 break; 2312 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2313 if (value != 0 && value != 1) { 2314 err = USBD_IOERROR; 2315 goto ret; 2316 } 2317 sc->sc_conf = value; 2318 break; 2319 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2320 break; 2321 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2322 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2323 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2324 err = USBD_IOERROR; 2325 goto ret; 2326 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2327 break; 2328 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2329 break; 2330 /* Hub requests */ 2331 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2332 break; 2333 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2334 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2335 "port=%d feature=%d\n", 2336 index, value)); 2337 if (index < 1 || index > sc->sc_noport) { 2338 err = USBD_IOERROR; 2339 goto ret; 2340 } 2341 port = OHCI_RH_PORT_STATUS(index); 2342 switch(value) { 2343 case UHF_PORT_ENABLE: 2344 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2345 break; 2346 case UHF_PORT_SUSPEND: 2347 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2348 break; 2349 case UHF_PORT_POWER: 2350 OWRITE4(sc, port, UPS_LOW_SPEED); 2351 break; 2352 case UHF_C_PORT_CONNECTION: 2353 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2354 break; 2355 case UHF_C_PORT_ENABLE: 2356 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2357 break; 2358 case UHF_C_PORT_SUSPEND: 2359 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2360 break; 2361 case UHF_C_PORT_OVER_CURRENT: 2362 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2363 break; 2364 case UHF_C_PORT_RESET: 2365 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2366 break; 2367 default: 2368 err = USBD_IOERROR; 2369 goto ret; 2370 } 2371 switch(value) { 2372 case UHF_C_PORT_CONNECTION: 2373 case UHF_C_PORT_ENABLE: 2374 case UHF_C_PORT_SUSPEND: 2375 case UHF_C_PORT_OVER_CURRENT: 2376 case UHF_C_PORT_RESET: 2377 /* Enable RHSC interrupt if condition is cleared. */ 2378 if ((OREAD4(sc, port) >> 16) == 0) 2379 ohci_rhsc_able(sc, 1); 2380 break; 2381 default: 2382 break; 2383 } 2384 break; 2385 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2386 if (value != 0) { 2387 err = USBD_IOERROR; 2388 goto ret; 2389 } 2390 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2391 hubd = ohci_hubd; 2392 hubd.bNbrPorts = sc->sc_noport; 2393 USETW(hubd.wHubCharacteristics, 2394 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2395 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2396 /* XXX overcurrent */ 2397 ); 2398 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2399 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2400 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2401 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2402 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2403 l = min(len, hubd.bDescLength); 2404 totlen = l; 2405 memcpy(buf, &hubd, l); 2406 break; 2407 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2408 if (len != 4) { 2409 err = USBD_IOERROR; 2410 goto ret; 2411 } 2412 memset(buf, 0, len); /* ? XXX */ 2413 totlen = len; 2414 break; 2415 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2416 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2417 index)); 2418 if (index < 1 || index > sc->sc_noport) { 2419 err = USBD_IOERROR; 2420 goto ret; 2421 } 2422 if (len != 4) { 2423 err = USBD_IOERROR; 2424 goto ret; 2425 } 2426 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2427 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2428 v)); 2429 USETW(ps.wPortStatus, v); 2430 USETW(ps.wPortChange, v >> 16); 2431 l = min(len, sizeof ps); 2432 memcpy(buf, &ps, l); 2433 totlen = l; 2434 break; 2435 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2436 err = USBD_IOERROR; 2437 goto ret; 2438 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2439 break; 2440 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2441 if (index < 1 || index > sc->sc_noport) { 2442 err = USBD_IOERROR; 2443 goto ret; 2444 } 2445 port = OHCI_RH_PORT_STATUS(index); 2446 switch(value) { 2447 case UHF_PORT_ENABLE: 2448 OWRITE4(sc, port, UPS_PORT_ENABLED); 2449 break; 2450 case UHF_PORT_SUSPEND: 2451 OWRITE4(sc, port, UPS_SUSPEND); 2452 break; 2453 case UHF_PORT_RESET: 2454 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2455 index)); 2456 OWRITE4(sc, port, UPS_RESET); 2457 for (i = 0; i < 10; i++) { 2458 usb_delay_ms(&sc->sc_bus, 10); 2459 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2460 break; 2461 } 2462 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2463 index, OREAD4(sc, port))); 2464 break; 2465 case UHF_PORT_POWER: 2466 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2467 "%d\n", index)); 2468 OWRITE4(sc, port, UPS_PORT_POWER); 2469 break; 2470 default: 2471 err = USBD_IOERROR; 2472 goto ret; 2473 } 2474 break; 2475 default: 2476 err = USBD_IOERROR; 2477 goto ret; 2478 } 2479 xfer->actlen = totlen; 2480 err = USBD_NORMAL_COMPLETION; 2481 ret: 2482 xfer->status = err; 2483 s = splusb(); 2484 usb_transfer_complete(xfer); 2485 splx(s); 2486 return (USBD_IN_PROGRESS); 2487 } 2488 2489 /* Abort a root control request. */ 2490 Static void 2491 ohci_root_ctrl_abort(xfer) 2492 usbd_xfer_handle xfer; 2493 { 2494 /* Nothing to do, all transfers are synchronous. */ 2495 } 2496 2497 /* Close the root pipe. */ 2498 Static void 2499 ohci_root_ctrl_close(pipe) 2500 usbd_pipe_handle pipe; 2501 { 2502 DPRINTF(("ohci_root_ctrl_close\n")); 2503 /* Nothing to do. */ 2504 } 2505 2506 Static usbd_status 2507 ohci_root_intr_transfer(xfer) 2508 usbd_xfer_handle xfer; 2509 { 2510 usbd_status err; 2511 2512 /* Insert last in queue. */ 2513 err = usb_insert_transfer(xfer); 2514 if (err) 2515 return (err); 2516 2517 /* Pipe isn't running, start first */ 2518 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2519 } 2520 2521 Static usbd_status 2522 ohci_root_intr_start(xfer) 2523 usbd_xfer_handle xfer; 2524 { 2525 usbd_pipe_handle pipe = xfer->pipe; 2526 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2527 2528 if (sc->sc_dying) 2529 return (USBD_IOERROR); 2530 2531 sc->sc_intrxfer = xfer; 2532 2533 return (USBD_IN_PROGRESS); 2534 } 2535 2536 /* Abort a root interrupt request. */ 2537 Static void 2538 ohci_root_intr_abort(xfer) 2539 usbd_xfer_handle xfer; 2540 { 2541 int s; 2542 2543 if (xfer->pipe->intrxfer == xfer) { 2544 DPRINTF(("ohci_root_intr_abort: remove\n")); 2545 xfer->pipe->intrxfer = NULL; 2546 } 2547 xfer->status = USBD_CANCELLED; 2548 s = splusb(); 2549 usb_transfer_complete(xfer); 2550 splx(s); 2551 } 2552 2553 /* Close the root pipe. */ 2554 Static void 2555 ohci_root_intr_close(pipe) 2556 usbd_pipe_handle pipe; 2557 { 2558 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2559 2560 DPRINTF(("ohci_root_intr_close\n")); 2561 2562 sc->sc_intrxfer = NULL; 2563 } 2564 2565 /************************/ 2566 2567 Static usbd_status 2568 ohci_device_ctrl_transfer(xfer) 2569 usbd_xfer_handle xfer; 2570 { 2571 usbd_status err; 2572 2573 /* Insert last in queue. */ 2574 err = usb_insert_transfer(xfer); 2575 if (err) 2576 return (err); 2577 2578 /* Pipe isn't running, start first */ 2579 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2580 } 2581 2582 Static usbd_status 2583 ohci_device_ctrl_start(xfer) 2584 usbd_xfer_handle xfer; 2585 { 2586 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2587 usbd_status err; 2588 2589 if (sc->sc_dying) 2590 return (USBD_IOERROR); 2591 2592 #ifdef DIAGNOSTIC 2593 if (!(xfer->rqflags & URQ_REQUEST)) { 2594 /* XXX panic */ 2595 printf("ohci_device_ctrl_transfer: not a request\n"); 2596 return (USBD_INVAL); 2597 } 2598 #endif 2599 2600 err = ohci_device_request(xfer); 2601 if (err) 2602 return (err); 2603 2604 if (sc->sc_bus.use_polling) 2605 ohci_waitintr(sc, xfer); 2606 return (USBD_IN_PROGRESS); 2607 } 2608 2609 /* Abort a device control request. */ 2610 Static void 2611 ohci_device_ctrl_abort(xfer) 2612 usbd_xfer_handle xfer; 2613 { 2614 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2615 ohci_abort_xfer(xfer, USBD_CANCELLED); 2616 } 2617 2618 /* Close a device control pipe. */ 2619 Static void 2620 ohci_device_ctrl_close(pipe) 2621 usbd_pipe_handle pipe; 2622 { 2623 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2624 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2625 2626 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2627 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2628 ohci_free_std(sc, opipe->tail.td); 2629 } 2630 2631 /************************/ 2632 2633 Static void 2634 ohci_device_clear_toggle(pipe) 2635 usbd_pipe_handle pipe; 2636 { 2637 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2638 2639 opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY); 2640 } 2641 2642 Static void 2643 ohci_noop(pipe) 2644 usbd_pipe_handle pipe; 2645 { 2646 } 2647 2648 Static usbd_status 2649 ohci_device_bulk_transfer(xfer) 2650 usbd_xfer_handle xfer; 2651 { 2652 usbd_status err; 2653 2654 /* Insert last in queue. */ 2655 err = usb_insert_transfer(xfer); 2656 if (err) 2657 return (err); 2658 2659 /* Pipe isn't running, start first */ 2660 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2661 } 2662 2663 Static usbd_status 2664 ohci_device_bulk_start(xfer) 2665 usbd_xfer_handle xfer; 2666 { 2667 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2668 usbd_device_handle dev = opipe->pipe.device; 2669 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2670 int addr = dev->address; 2671 ohci_soft_td_t *data, *tail, *tdp; 2672 ohci_soft_ed_t *sed; 2673 int s, len, isread, endpt; 2674 usbd_status err; 2675 2676 if (sc->sc_dying) 2677 return (USBD_IOERROR); 2678 2679 #ifdef DIAGNOSTIC 2680 if (xfer->rqflags & URQ_REQUEST) { 2681 /* XXX panic */ 2682 printf("ohci_device_bulk_start: a request\n"); 2683 return (USBD_INVAL); 2684 } 2685 #endif 2686 2687 len = xfer->length; 2688 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2689 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2690 sed = opipe->sed; 2691 2692 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2693 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2694 endpt)); 2695 2696 opipe->u.bulk.isread = isread; 2697 opipe->u.bulk.length = len; 2698 2699 /* Update device address */ 2700 sed->ed.ed_flags = htole32( 2701 (le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2702 OHCI_ED_SET_FA(addr)); 2703 2704 /* Allocate a chain of new TDs (including a new tail). */ 2705 data = opipe->tail.td; 2706 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2707 data, &tail); 2708 /* We want interrupt at the end of the transfer. */ 2709 tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK); 2710 tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1)); 2711 tail->flags |= OHCI_CALL_DONE; 2712 tail = tail->nexttd; /* point at sentinel */ 2713 if (err) 2714 return (err); 2715 2716 tail->xfer = NULL; 2717 xfer->hcpriv = data; 2718 2719 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2720 "td_cbp=0x%08x td_be=0x%08x\n", 2721 (int)le32toh(sed->ed.ed_flags), 2722 (int)le32toh(data->td.td_flags), 2723 (int)le32toh(data->td.td_cbp), 2724 (int)le32toh(data->td.td_be))); 2725 2726 #ifdef OHCI_DEBUG 2727 if (ohcidebug > 5) { 2728 ohci_dump_ed(sed); 2729 ohci_dump_tds(data); 2730 } 2731 #endif 2732 2733 /* Insert ED in schedule */ 2734 s = splusb(); 2735 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2736 tdp->xfer = xfer; 2737 } 2738 sed->ed.ed_tailp = htole32(tail->physaddr); 2739 opipe->tail.td = tail; 2740 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2741 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2742 if (xfer->timeout && !sc->sc_bus.use_polling) { 2743 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2744 ohci_timeout, xfer); 2745 } 2746 2747 #if 0 2748 /* This goes wrong if we are too slow. */ 2749 if (ohcidebug > 10) { 2750 delay(10000); 2751 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2752 OREAD4(sc, OHCI_COMMAND_STATUS))); 2753 ohci_dump_ed(sed); 2754 ohci_dump_tds(data); 2755 } 2756 #endif 2757 2758 splx(s); 2759 2760 return (USBD_IN_PROGRESS); 2761 } 2762 2763 Static void 2764 ohci_device_bulk_abort(xfer) 2765 usbd_xfer_handle xfer; 2766 { 2767 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2768 ohci_abort_xfer(xfer, USBD_CANCELLED); 2769 } 2770 2771 /* 2772 * Close a device bulk pipe. 2773 */ 2774 Static void 2775 ohci_device_bulk_close(pipe) 2776 usbd_pipe_handle pipe; 2777 { 2778 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2779 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2780 2781 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2782 ohci_close_pipe(pipe, sc->sc_bulk_head); 2783 ohci_free_std(sc, opipe->tail.td); 2784 } 2785 2786 /************************/ 2787 2788 Static usbd_status 2789 ohci_device_intr_transfer(xfer) 2790 usbd_xfer_handle xfer; 2791 { 2792 usbd_status err; 2793 2794 /* Insert last in queue. */ 2795 err = usb_insert_transfer(xfer); 2796 if (err) 2797 return (err); 2798 2799 /* Pipe isn't running, start first */ 2800 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2801 } 2802 2803 Static usbd_status 2804 ohci_device_intr_start(xfer) 2805 usbd_xfer_handle xfer; 2806 { 2807 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2808 usbd_device_handle dev = opipe->pipe.device; 2809 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2810 ohci_soft_ed_t *sed = opipe->sed; 2811 ohci_soft_td_t *data, *tail; 2812 int len; 2813 int s; 2814 2815 if (sc->sc_dying) 2816 return (USBD_IOERROR); 2817 2818 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2819 "flags=%d priv=%p\n", 2820 xfer, xfer->length, xfer->flags, xfer->priv)); 2821 2822 #ifdef DIAGNOSTIC 2823 if (xfer->rqflags & URQ_REQUEST) 2824 panic("ohci_device_intr_transfer: a request\n"); 2825 #endif 2826 2827 len = xfer->length; 2828 2829 data = opipe->tail.td; 2830 tail = ohci_alloc_std(sc); 2831 if (tail == NULL) 2832 return (USBD_NOMEM); 2833 tail->xfer = NULL; 2834 2835 data->td.td_flags = htole32( 2836 OHCI_TD_IN | OHCI_TD_NOCC | 2837 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2838 if (xfer->flags & USBD_SHORT_XFER_OK) 2839 data->td.td_flags |= htole32(OHCI_TD_R); 2840 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 2841 data->nexttd = tail; 2842 data->td.td_nexttd = htole32(tail->physaddr); 2843 data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1); 2844 data->len = len; 2845 data->xfer = xfer; 2846 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2847 xfer->hcpriv = data; 2848 2849 #ifdef OHCI_DEBUG 2850 if (ohcidebug > 5) { 2851 DPRINTF(("ohci_device_intr_transfer:\n")); 2852 ohci_dump_ed(sed); 2853 ohci_dump_tds(data); 2854 } 2855 #endif 2856 2857 /* Insert ED in schedule */ 2858 s = splusb(); 2859 sed->ed.ed_tailp = htole32(tail->physaddr); 2860 opipe->tail.td = tail; 2861 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2862 2863 #if 0 2864 /* 2865 * This goes horribly wrong, printing thousands of descriptors, 2866 * because false references are followed due to the fact that the 2867 * TD is gone. 2868 */ 2869 if (ohcidebug > 5) { 2870 usb_delay_ms(&sc->sc_bus, 5); 2871 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2872 OREAD4(sc, OHCI_COMMAND_STATUS))); 2873 ohci_dump_ed(sed); 2874 ohci_dump_tds(data); 2875 } 2876 #endif 2877 splx(s); 2878 2879 return (USBD_IN_PROGRESS); 2880 } 2881 2882 /* Abort a device control request. */ 2883 Static void 2884 ohci_device_intr_abort(xfer) 2885 usbd_xfer_handle xfer; 2886 { 2887 if (xfer->pipe->intrxfer == xfer) { 2888 DPRINTF(("ohci_device_intr_abort: remove\n")); 2889 xfer->pipe->intrxfer = NULL; 2890 } 2891 ohci_abort_xfer(xfer, USBD_CANCELLED); 2892 } 2893 2894 /* Close a device interrupt pipe. */ 2895 Static void 2896 ohci_device_intr_close(pipe) 2897 usbd_pipe_handle pipe; 2898 { 2899 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2900 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2901 int nslots = opipe->u.intr.nslots; 2902 int pos = opipe->u.intr.pos; 2903 int j; 2904 ohci_soft_ed_t *p, *sed = opipe->sed; 2905 int s; 2906 2907 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2908 pipe, nslots, pos)); 2909 s = splusb(); 2910 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 2911 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2912 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2913 usb_delay_ms(&sc->sc_bus, 2); 2914 2915 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2916 ; 2917 #ifdef DIAGNOSTIC 2918 if (p == NULL) 2919 panic("ohci_device_intr_close: ED not found\n"); 2920 #endif 2921 p->next = sed->next; 2922 p->ed.ed_nexted = sed->ed.ed_nexted; 2923 splx(s); 2924 2925 for (j = 0; j < nslots; j++) 2926 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2927 2928 ohci_free_std(sc, opipe->tail.td); 2929 ohci_free_sed(sc, opipe->sed); 2930 } 2931 2932 Static usbd_status 2933 ohci_device_setintr(sc, opipe, ival) 2934 ohci_softc_t *sc; 2935 struct ohci_pipe *opipe; 2936 int ival; 2937 { 2938 int i, j, s, best; 2939 u_int npoll, slow, shigh, nslots; 2940 u_int bestbw, bw; 2941 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2942 2943 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2944 if (ival == 0) { 2945 printf("ohci_setintr: 0 interval\n"); 2946 return (USBD_INVAL); 2947 } 2948 2949 npoll = OHCI_NO_INTRS; 2950 while (npoll > ival) 2951 npoll /= 2; 2952 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2953 2954 /* 2955 * We now know which level in the tree the ED must go into. 2956 * Figure out which slot has most bandwidth left over. 2957 * Slots to examine: 2958 * npoll 2959 * 1 0 2960 * 2 1 2 2961 * 4 3 4 5 6 2962 * 8 7 8 9 10 11 12 13 14 2963 * N (N-1) .. (N-1+N-1) 2964 */ 2965 slow = npoll-1; 2966 shigh = slow + npoll; 2967 nslots = OHCI_NO_INTRS / npoll; 2968 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2969 bw = 0; 2970 for (j = 0; j < nslots; j++) 2971 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2972 if (bw < bestbw) { 2973 best = i; 2974 bestbw = bw; 2975 } 2976 } 2977 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2978 best, slow, shigh, bestbw)); 2979 2980 s = splusb(); 2981 hsed = sc->sc_eds[best]; 2982 sed->next = hsed->next; 2983 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2984 hsed->next = sed; 2985 hsed->ed.ed_nexted = htole32(sed->physaddr); 2986 splx(s); 2987 2988 for (j = 0; j < nslots; j++) 2989 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2990 opipe->u.intr.nslots = nslots; 2991 opipe->u.intr.pos = best; 2992 2993 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2994 return (USBD_NORMAL_COMPLETION); 2995 } 2996 2997 /***********************/ 2998 2999 usbd_status 3000 ohci_device_isoc_transfer(xfer) 3001 usbd_xfer_handle xfer; 3002 { 3003 usbd_status err; 3004 3005 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3006 3007 /* Put it on our queue, */ 3008 err = usb_insert_transfer(xfer); 3009 3010 /* bail out on error, */ 3011 if (err && err != USBD_IN_PROGRESS) 3012 return (err); 3013 3014 /* XXX should check inuse here */ 3015 3016 /* insert into schedule, */ 3017 ohci_device_isoc_enter(xfer); 3018 3019 /* and start if the pipe wasn't running */ 3020 if (!err) 3021 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3022 3023 return (err); 3024 } 3025 3026 void 3027 ohci_device_isoc_enter(xfer) 3028 usbd_xfer_handle xfer; 3029 { 3030 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3031 usbd_device_handle dev = opipe->pipe.device; 3032 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3033 ohci_soft_ed_t *sed = opipe->sed; 3034 struct iso *iso = &opipe->u.iso; 3035 ohci_soft_itd_t *sitd, *nsitd; 3036 ohci_physaddr_t buf, offs, noffs, bp0; 3037 int i, ncur, nframes; 3038 int s; 3039 3040 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3041 "nframes=%d\n", 3042 iso->inuse, iso->next, xfer, xfer->nframes)); 3043 3044 if (sc->sc_dying) 3045 return; 3046 3047 if (iso->next == -1) { 3048 /* Not in use yet, schedule it a few frames ahead. */ 3049 iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5; 3050 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3051 iso->next)); 3052 } 3053 3054 sitd = opipe->tail.itd; 3055 buf = DMAADDR(&xfer->dmabuf); 3056 bp0 = OHCI_PAGE(buf); 3057 offs = OHCI_PAGE_OFFSET(buf); 3058 nframes = xfer->nframes; 3059 xfer->hcpriv = sitd; 3060 for (i = ncur = 0; i < nframes; i++, ncur++) { 3061 noffs = offs + xfer->frlengths[i]; 3062 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3063 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3064 3065 /* Allocate next ITD */ 3066 nsitd = ohci_alloc_sitd(sc); 3067 if (nsitd == NULL) { 3068 /* XXX what now? */ 3069 printf("%s: isoc TD alloc failed\n", 3070 USBDEVNAME(sc->sc_bus.bdev)); 3071 return; 3072 } 3073 3074 /* Fill current ITD */ 3075 sitd->itd.itd_flags = htole32( 3076 OHCI_ITD_NOCC | 3077 OHCI_ITD_SET_SF(iso->next) | 3078 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3079 OHCI_ITD_SET_FC(ncur)); 3080 sitd->itd.itd_bp0 = htole32(bp0); 3081 sitd->nextitd = nsitd; 3082 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3083 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3084 sitd->xfer = xfer; 3085 sitd->flags = 0; 3086 3087 sitd = nsitd; 3088 iso->next = iso->next + ncur; 3089 bp0 = OHCI_PAGE(buf + offs); 3090 ncur = 0; 3091 } 3092 sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs)); 3093 offs = noffs; 3094 } 3095 nsitd = ohci_alloc_sitd(sc); 3096 if (nsitd == NULL) { 3097 /* XXX what now? */ 3098 printf("%s: isoc TD alloc failed\n", 3099 USBDEVNAME(sc->sc_bus.bdev)); 3100 return; 3101 } 3102 /* Fixup last used ITD */ 3103 sitd->itd.itd_flags = htole32( 3104 OHCI_ITD_NOCC | 3105 OHCI_ITD_SET_SF(iso->next) | 3106 OHCI_ITD_SET_DI(0) | 3107 OHCI_ITD_SET_FC(ncur)); 3108 sitd->itd.itd_bp0 = htole32(bp0); 3109 sitd->nextitd = nsitd; 3110 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3111 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3112 sitd->xfer = xfer; 3113 sitd->flags = OHCI_CALL_DONE; 3114 3115 iso->next = iso->next + ncur; 3116 iso->inuse += nframes; 3117 3118 xfer->actlen = offs; /* XXX pretend we did it all */ 3119 3120 xfer->status = USBD_IN_PROGRESS; 3121 3122 #ifdef OHCI_DEBUG 3123 if (ohcidebug > 5) { 3124 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3125 le32toh(sc->sc_hcca->hcca_frame_number))); 3126 ohci_dump_itds(xfer->hcpriv); 3127 ohci_dump_ed(sed); 3128 } 3129 #endif 3130 3131 s = splusb(); 3132 opipe->tail.itd = nsitd; 3133 sed->ed.ed_tailp = htole32(nsitd->physaddr); 3134 splx(s); 3135 3136 #ifdef OHCI_DEBUG 3137 if (ohcidebug > 5) { 3138 delay(150000); 3139 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3140 le32toh(sc->sc_hcca->hcca_frame_number))); 3141 ohci_dump_itds(xfer->hcpriv); 3142 ohci_dump_ed(sed); 3143 } 3144 #endif 3145 } 3146 3147 usbd_status 3148 ohci_device_isoc_start(xfer) 3149 usbd_xfer_handle xfer; 3150 { 3151 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3152 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3153 3154 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3155 3156 if (sc->sc_dying) 3157 return (USBD_IOERROR); 3158 3159 #ifdef DIAGNOSTIC 3160 if (xfer->status != USBD_IN_PROGRESS) 3161 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 3162 #endif 3163 3164 /* XXX anything to do? */ 3165 3166 return (USBD_IN_PROGRESS); 3167 } 3168 3169 void 3170 ohci_device_isoc_abort(xfer) 3171 usbd_xfer_handle xfer; 3172 { 3173 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3174 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3175 ohci_soft_ed_t *sed; 3176 ohci_soft_itd_t *sitd; 3177 int s; 3178 3179 s = splusb(); 3180 3181 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3182 3183 /* Transfer is already done. */ 3184 if (xfer->status != USBD_NOT_STARTED && 3185 xfer->status != USBD_IN_PROGRESS) { 3186 splx(s); 3187 printf("ohci_device_isoc_abort: early return\n"); 3188 return; 3189 } 3190 3191 /* Give xfer the requested abort code. */ 3192 xfer->status = USBD_CANCELLED; 3193 3194 sed = opipe->sed; 3195 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 3196 3197 sitd = xfer->hcpriv; 3198 #ifdef DIAGNOSTIC 3199 if (sitd == NULL) { 3200 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3201 return; 3202 } 3203 #endif 3204 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3205 #ifdef DIAGNOSTIC 3206 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3207 sitd->isdone = 1; 3208 #endif 3209 } 3210 3211 splx(s); 3212 3213 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3214 3215 s = splusb(); 3216 3217 /* Run callback. */ 3218 usb_transfer_complete(xfer); 3219 3220 sed->ed.ed_headp = htole32(sitd->physaddr); /* unlink TDs */ 3221 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 3222 3223 splx(s); 3224 } 3225 3226 void 3227 ohci_device_isoc_done(xfer) 3228 usbd_xfer_handle xfer; 3229 { 3230 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3231 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3232 ohci_soft_itd_t *sitd, *nsitd; 3233 3234 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3235 3236 for (sitd = xfer->hcpriv; 3237 !(sitd->flags & OHCI_CALL_DONE); 3238 sitd = nsitd) { 3239 nsitd = sitd->nextitd; 3240 DPRINTFN(1,("ohci_device_isoc_done: free sitd=%p\n", sitd)); 3241 ohci_free_sitd(sc, sitd); 3242 } 3243 ohci_free_sitd(sc, sitd); 3244 xfer->hcpriv = NULL; 3245 } 3246 3247 usbd_status 3248 ohci_setup_isoc(pipe) 3249 usbd_pipe_handle pipe; 3250 { 3251 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3252 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3253 struct iso *iso = &opipe->u.iso; 3254 int s; 3255 3256 iso->next = -1; 3257 iso->inuse = 0; 3258 3259 s = splusb(); 3260 ohci_add_ed(opipe->sed, sc->sc_isoc_head); 3261 splx(s); 3262 3263 return (USBD_NORMAL_COMPLETION); 3264 } 3265 3266 void 3267 ohci_device_isoc_close(pipe) 3268 usbd_pipe_handle pipe; 3269 { 3270 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3271 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3272 int s; 3273 3274 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3275 3276 s = splusb(); 3277 ohci_rem_ed(opipe->sed, sc->sc_isoc_head); 3278 splx(s); 3279 ohci_close_pipe(pipe, sc->sc_isoc_head); 3280 #ifdef DIAGNOSTIC 3281 opipe->tail.itd->isdone = 1; 3282 #endif 3283 ohci_free_sitd(sc, opipe->tail.itd); 3284 } 3285
Indexes created Tue Sep 23 07:09:52 GMT 2025