1 /* $NetBSD: ohci.c,v 1.91 2000/06/01 14:28:58 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 (lennart@augustsson.net) 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(ohci_softc_t *); 117 Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *); 118 119 Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *); 120 Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *); 121 122 Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *); 123 Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *); 124 125 #if 0 126 Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *, 127 ohci_soft_td_t *); 128 #endif 129 Static usbd_status ohci_alloc_std_chain(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(void *v); 134 Static void ohci_power(int, void *); 135 Static usbd_status ohci_open(usbd_pipe_handle); 136 Static void ohci_poll(struct usbd_bus *); 137 Static void ohci_softintr(struct usbd_bus *); 138 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 139 Static void ohci_add_done(ohci_softc_t *, ohci_physaddr_t); 140 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 141 142 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 143 Static void ohci_add_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 144 Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 145 Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *); 146 Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *); 147 Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t); 148 Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *); 149 Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *); 150 Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t); 151 152 Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe); 153 Static void ohci_device_isoc_enter(usbd_xfer_handle); 154 155 Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 156 Static void ohci_freem(struct usbd_bus *, usb_dma_t *); 157 158 Static usbd_xfer_handle ohci_allocx(struct usbd_bus *); 159 Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle); 160 161 Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle); 162 Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle); 163 Static void ohci_root_ctrl_abort(usbd_xfer_handle); 164 Static void ohci_root_ctrl_close(usbd_pipe_handle); 165 Static void ohci_root_ctrl_done(usbd_xfer_handle); 166 167 Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle); 168 Static usbd_status ohci_root_intr_start(usbd_xfer_handle); 169 Static void ohci_root_intr_abort(usbd_xfer_handle); 170 Static void ohci_root_intr_close(usbd_pipe_handle); 171 Static void ohci_root_intr_done(usbd_xfer_handle); 172 173 Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle); 174 Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle); 175 Static void ohci_device_ctrl_abort(usbd_xfer_handle); 176 Static void ohci_device_ctrl_close(usbd_pipe_handle); 177 Static void ohci_device_ctrl_done(usbd_xfer_handle); 178 179 Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle); 180 Static usbd_status ohci_device_bulk_start(usbd_xfer_handle); 181 Static void ohci_device_bulk_abort(usbd_xfer_handle); 182 Static void ohci_device_bulk_close(usbd_pipe_handle); 183 Static void ohci_device_bulk_done(usbd_xfer_handle); 184 185 Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle); 186 Static usbd_status ohci_device_intr_start(usbd_xfer_handle); 187 Static void ohci_device_intr_abort(usbd_xfer_handle); 188 Static void ohci_device_intr_close(usbd_pipe_handle); 189 Static void ohci_device_intr_done(usbd_xfer_handle); 190 191 Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle); 192 Static usbd_status ohci_device_isoc_start(usbd_xfer_handle); 193 Static void ohci_device_isoc_abort(usbd_xfer_handle); 194 Static void ohci_device_isoc_close(usbd_pipe_handle); 195 Static void ohci_device_isoc_done(usbd_xfer_handle); 196 197 Static usbd_status ohci_device_setintr(ohci_softc_t *sc, 198 struct ohci_pipe *pipe, int ival); 199 200 Static int ohci_str(usb_string_descriptor_t *, int, char *); 201 202 Static void ohci_timeout(void *); 203 Static void ohci_rhsc_able(ohci_softc_t *, int); 204 205 Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *); 206 Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status); 207 Static void ohci_abort_xfer_end(void *); 208 209 Static void ohci_device_clear_toggle(usbd_pipe_handle pipe); 210 Static void ohci_noop(usbd_pipe_handle pipe); 211 212 #ifdef OHCI_DEBUG 213 Static void ohci_dumpregs(ohci_softc_t *); 214 Static void ohci_dump_tds(ohci_soft_td_t *); 215 Static void ohci_dump_td(ohci_soft_td_t *); 216 Static void ohci_dump_ed(ohci_soft_ed_t *); 217 Static void ohci_dump_itd(ohci_soft_itd_t *); 218 Static void ohci_dump_itds(ohci_soft_itd_t *); 219 #endif 220 221 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 222 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 223 #define OWRITE1(sc, r, x) \ 224 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 225 #define OWRITE2(sc, r, x) \ 226 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 227 #define OWRITE4(sc, r, x) \ 228 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 229 #define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 230 #define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 231 #define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 232 233 /* Reverse the bits in a value 0 .. 31 */ 234 Static u_int8_t revbits[OHCI_NO_INTRS] = 235 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 236 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 237 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 238 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 239 240 struct ohci_pipe { 241 struct usbd_pipe pipe; 242 ohci_soft_ed_t *sed; 243 union { 244 ohci_soft_td_t *td; 245 ohci_soft_itd_t *itd; 246 } tail; 247 /* Info needed for different pipe kinds. */ 248 union { 249 /* Control pipe */ 250 struct { 251 usb_dma_t reqdma; 252 u_int length; 253 ohci_soft_td_t *setup, *data, *stat; 254 } ctl; 255 /* Interrupt pipe */ 256 struct { 257 int nslots; 258 int pos; 259 } intr; 260 /* Bulk pipe */ 261 struct { 262 u_int length; 263 int isread; 264 } bulk; 265 /* Iso pipe */ 266 struct iso { 267 int next, inuse; 268 } iso; 269 } u; 270 }; 271 272 #define OHCI_INTR_ENDPT 1 273 274 Static struct usbd_bus_methods ohci_bus_methods = { 275 ohci_open, 276 ohci_softintr, 277 ohci_poll, 278 ohci_allocm, 279 ohci_freem, 280 ohci_allocx, 281 ohci_freex, 282 }; 283 284 Static struct usbd_pipe_methods ohci_root_ctrl_methods = { 285 ohci_root_ctrl_transfer, 286 ohci_root_ctrl_start, 287 ohci_root_ctrl_abort, 288 ohci_root_ctrl_close, 289 ohci_noop, 290 ohci_root_ctrl_done, 291 }; 292 293 Static struct usbd_pipe_methods ohci_root_intr_methods = { 294 ohci_root_intr_transfer, 295 ohci_root_intr_start, 296 ohci_root_intr_abort, 297 ohci_root_intr_close, 298 ohci_noop, 299 ohci_root_intr_done, 300 }; 301 302 Static struct usbd_pipe_methods ohci_device_ctrl_methods = { 303 ohci_device_ctrl_transfer, 304 ohci_device_ctrl_start, 305 ohci_device_ctrl_abort, 306 ohci_device_ctrl_close, 307 ohci_noop, 308 ohci_device_ctrl_done, 309 }; 310 311 Static struct usbd_pipe_methods ohci_device_intr_methods = { 312 ohci_device_intr_transfer, 313 ohci_device_intr_start, 314 ohci_device_intr_abort, 315 ohci_device_intr_close, 316 ohci_device_clear_toggle, 317 ohci_device_intr_done, 318 }; 319 320 Static struct usbd_pipe_methods ohci_device_bulk_methods = { 321 ohci_device_bulk_transfer, 322 ohci_device_bulk_start, 323 ohci_device_bulk_abort, 324 ohci_device_bulk_close, 325 ohci_device_clear_toggle, 326 ohci_device_bulk_done, 327 }; 328 329 Static struct usbd_pipe_methods ohci_device_isoc_methods = { 330 ohci_device_isoc_transfer, 331 ohci_device_isoc_start, 332 ohci_device_isoc_abort, 333 ohci_device_isoc_close, 334 ohci_noop, 335 ohci_device_isoc_done, 336 }; 337 338 #if defined(__NetBSD__) || defined(__OpenBSD__) 339 int 340 ohci_activate(device_ptr_t self, enum devact act) 341 { 342 struct ohci_softc *sc = (struct ohci_softc *)self; 343 int rv = 0; 344 345 switch (act) { 346 case DVACT_ACTIVATE: 347 return (EOPNOTSUPP); 348 break; 349 350 case DVACT_DEACTIVATE: 351 if (sc->sc_child != NULL) 352 rv = config_deactivate(sc->sc_child); 353 sc->sc_dying = 1; 354 break; 355 } 356 return (rv); 357 } 358 359 int 360 ohci_detach(struct ohci_softc *sc, int flags) 361 { 362 int rv = 0; 363 364 if (sc->sc_child != NULL) 365 rv = config_detach(sc->sc_child, flags); 366 367 if (rv != 0) 368 return (rv); 369 370 #if defined(__NetBSD__) || defined(__OpenBSD__) 371 powerhook_disestablish(sc->sc_powerhook); 372 shutdownhook_disestablish(sc->sc_shutdownhook); 373 #endif 374 375 /* free data structures XXX */ 376 377 return (rv); 378 } 379 #endif 380 381 ohci_soft_ed_t * 382 ohci_alloc_sed(ohci_softc_t *sc) 383 { 384 ohci_soft_ed_t *sed; 385 usbd_status err; 386 int i, offs; 387 usb_dma_t dma; 388 389 if (sc->sc_freeeds == NULL) { 390 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 391 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 392 OHCI_ED_ALIGN, &dma); 393 if (err) 394 return (0); 395 for(i = 0; i < OHCI_SED_CHUNK; i++) { 396 offs = i * OHCI_SED_SIZE; 397 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 398 sed->physaddr = DMAADDR(&dma) + offs; 399 sed->next = sc->sc_freeeds; 400 sc->sc_freeeds = sed; 401 } 402 } 403 sed = sc->sc_freeeds; 404 sc->sc_freeeds = sed->next; 405 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 406 sed->next = 0; 407 return (sed); 408 } 409 410 void 411 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 412 { 413 sed->next = sc->sc_freeeds; 414 sc->sc_freeeds = sed; 415 } 416 417 ohci_soft_td_t * 418 ohci_alloc_std(ohci_softc_t *sc) 419 { 420 ohci_soft_td_t *std; 421 usbd_status err; 422 int i, offs; 423 usb_dma_t dma; 424 int s; 425 426 if (sc->sc_freetds == NULL) { 427 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 428 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 429 OHCI_TD_ALIGN, &dma); 430 if (err) 431 return (NULL); 432 s = splusb(); 433 for(i = 0; i < OHCI_STD_CHUNK; i++) { 434 offs = i * OHCI_STD_SIZE; 435 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 436 std->physaddr = DMAADDR(&dma) + offs; 437 std->nexttd = sc->sc_freetds; 438 sc->sc_freetds = std; 439 } 440 splx(s); 441 } 442 443 s = splusb(); 444 std = sc->sc_freetds; 445 sc->sc_freetds = std->nexttd; 446 memset(&std->td, 0, sizeof(ohci_td_t)); 447 std->nexttd = NULL; 448 std->xfer = NULL; 449 ohci_hash_add_td(sc, std); 450 splx(s); 451 452 return (std); 453 } 454 455 void 456 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 457 { 458 int s; 459 460 s = splusb(); 461 ohci_hash_rem_td(sc, std); 462 std->nexttd = sc->sc_freetds; 463 sc->sc_freetds = std; 464 splx(s); 465 } 466 467 usbd_status 468 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 469 int alen, int rd, usbd_xfer_handle xfer, 470 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 471 { 472 ohci_soft_td_t *next, *cur; 473 ohci_physaddr_t dataphys, dataphysend; 474 u_int32_t tdflags; 475 int len, curlen; 476 usb_dma_t *dma = &xfer->dmabuf; 477 u_int16_t flags = xfer->flags; 478 479 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 480 481 len = alen; 482 cur = sp; 483 dataphys = DMAADDR(dma); 484 dataphysend = OHCI_PAGE(dataphys + len - 1); 485 tdflags = htole32( 486 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 487 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 488 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 489 490 for (;;) { 491 next = ohci_alloc_std(sc); 492 if (next == NULL) 493 goto nomem; 494 495 /* The OHCI hardware can handle at most one page crossing. */ 496 if (OHCI_PAGE(dataphys) == dataphysend || 497 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 498 /* we can handle it in this TD */ 499 curlen = len; 500 } else { 501 /* must use multiple TDs, fill as much as possible. */ 502 curlen = 2 * OHCI_PAGE_SIZE - 503 (dataphys & (OHCI_PAGE_SIZE-1)); 504 /* the length must be a multiple of the max size */ 505 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 506 #ifdef DIAGNOSTIC 507 if (curlen == 0) 508 panic("ohci_alloc_std: curlen == 0\n"); 509 #endif 510 } 511 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 512 "dataphysend=0x%08x len=%d curlen=%d\n", 513 dataphys, dataphysend, 514 len, curlen)); 515 len -= curlen; 516 517 cur->td.td_flags = tdflags; 518 cur->td.td_cbp = htole32(dataphys); 519 cur->nexttd = next; 520 cur->td.td_nexttd = htole32(next->physaddr); 521 cur->td.td_be = htole32(dataphys + curlen - 1); 522 cur->len = curlen; 523 cur->flags = OHCI_ADD_LEN; 524 cur->xfer = xfer; 525 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 526 dataphys, dataphys + curlen - 1)); 527 if (len == 0) 528 break; 529 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 530 dataphys += curlen; 531 cur = next; 532 } 533 if ((flags & USBD_FORCE_SHORT_XFER) && 534 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 535 /* Force a 0 length transfer at the end. */ 536 537 cur = next; 538 next = ohci_alloc_std(sc); 539 if (next == NULL) 540 goto nomem; 541 542 cur->td.td_flags = tdflags; 543 cur->td.td_cbp = 0; /* indicate 0 length packet */ 544 cur->nexttd = next; 545 cur->td.td_nexttd = htole32(next->physaddr); 546 cur->td.td_be = ~0; 547 cur->len = 0; 548 cur->flags = 0; 549 cur->xfer = xfer; 550 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 551 } 552 *ep = cur; 553 554 return (USBD_NORMAL_COMPLETION); 555 556 nomem: 557 /* XXX free chain */ 558 return (USBD_NOMEM); 559 } 560 561 #if 0 562 Static void 563 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 564 ohci_soft_td_t *stdend) 565 { 566 ohci_soft_td_t *p; 567 568 for (; std != stdend; std = p) { 569 p = std->nexttd; 570 ohci_free_std(sc, std); 571 } 572 } 573 #endif 574 575 ohci_soft_itd_t * 576 ohci_alloc_sitd(ohci_softc_t *sc) 577 { 578 ohci_soft_itd_t *sitd; 579 usbd_status err; 580 int i, s, offs; 581 usb_dma_t dma; 582 583 if (sc->sc_freeitds == NULL) { 584 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 585 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 586 OHCI_ITD_ALIGN, &dma); 587 if (err) 588 return (NULL); 589 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 590 offs = i * OHCI_SITD_SIZE; 591 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 592 sitd->physaddr = DMAADDR(&dma) + offs; 593 sitd->nextitd = sc->sc_freeitds; 594 sc->sc_freeitds = sitd; 595 } 596 } 597 598 s = splusb(); 599 sitd = sc->sc_freeitds; 600 sc->sc_freeitds = sitd->nextitd; 601 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 602 sitd->nextitd = NULL; 603 sitd->xfer = NULL; 604 ohci_hash_add_itd(sc, sitd); 605 splx(s); 606 607 #ifdef DIAGNOSTIC 608 sitd->isdone = 0; 609 #endif 610 611 return (sitd); 612 } 613 614 void 615 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 616 { 617 int s; 618 619 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 620 621 #ifdef DIAGNOSTIC 622 if (!sitd->isdone) { 623 panic("ohci_free_sitd: sitd=%p not done\n", sitd); 624 return; 625 } 626 #endif 627 628 s = splusb(); 629 ohci_hash_rem_itd(sc, sitd); 630 sitd->nextitd = sc->sc_freeitds; 631 sc->sc_freeitds = sitd; 632 splx(s); 633 } 634 635 usbd_status 636 ohci_init(ohci_softc_t *sc) 637 { 638 ohci_soft_ed_t *sed, *psed; 639 usbd_status err; 640 int i; 641 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 642 643 DPRINTF(("ohci_init: start\n")); 644 #if defined(__OpenBSD__) 645 printf(","); 646 #else 647 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 648 #endif 649 rev = OREAD4(sc, OHCI_REVISION); 650 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 651 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 652 653 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 654 printf("%s: unsupported OHCI revision\n", 655 USBDEVNAME(sc->sc_bus.bdev)); 656 sc->sc_bus.usbrev = USBREV_UNKNOWN; 657 return (USBD_INVAL); 658 } 659 sc->sc_bus.usbrev = USBREV_1_0; 660 661 for (i = 0; i < OHCI_HASH_SIZE; i++) 662 LIST_INIT(&sc->sc_hash_tds[i]); 663 for (i = 0; i < OHCI_HASH_SIZE; i++) 664 LIST_INIT(&sc->sc_hash_itds[i]); 665 666 SIMPLEQ_INIT(&sc->sc_free_xfers); 667 668 /* XXX determine alignment by R/W */ 669 /* Allocate the HCCA area. */ 670 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 671 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 672 if (err) 673 return (err); 674 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 675 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 676 677 sc->sc_eintrs = OHCI_NORMAL_INTRS; 678 679 /* Allocate dummy ED that starts the control list. */ 680 sc->sc_ctrl_head = ohci_alloc_sed(sc); 681 if (sc->sc_ctrl_head == NULL) { 682 err = USBD_NOMEM; 683 goto bad1; 684 } 685 sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 686 687 /* Allocate dummy ED that starts the bulk list. */ 688 sc->sc_bulk_head = ohci_alloc_sed(sc); 689 if (sc->sc_bulk_head == NULL) { 690 err = USBD_NOMEM; 691 goto bad2; 692 } 693 sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 694 695 /* Allocate dummy ED that starts the isochronous list. */ 696 sc->sc_isoc_head = ohci_alloc_sed(sc); 697 if (sc->sc_isoc_head == NULL) { 698 err = USBD_NOMEM; 699 goto bad3; 700 } 701 sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 702 703 /* Allocate all the dummy EDs that make up the interrupt tree. */ 704 for (i = 0; i < OHCI_NO_EDS; i++) { 705 sed = ohci_alloc_sed(sc); 706 if (sed == NULL) { 707 while (--i >= 0) 708 ohci_free_sed(sc, sc->sc_eds[i]); 709 err = USBD_NOMEM; 710 goto bad4; 711 } 712 /* All ED fields are set to 0. */ 713 sc->sc_eds[i] = sed; 714 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 715 if (i != 0) 716 psed = sc->sc_eds[(i-1) / 2]; 717 else 718 psed= sc->sc_isoc_head; 719 sed->next = psed; 720 sed->ed.ed_nexted = htole32(psed->physaddr); 721 } 722 /* 723 * Fill HCCA interrupt table. The bit reversal is to get 724 * the tree set up properly to spread the interrupts. 725 */ 726 for (i = 0; i < OHCI_NO_INTRS; i++) 727 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 728 htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 729 730 #ifdef OHCI_DEBUG 731 if (ohcidebug > 15) { 732 for (i = 0; i < OHCI_NO_EDS; i++) { 733 printf("ed#%d ", i); 734 ohci_dump_ed(sc->sc_eds[i]); 735 } 736 printf("iso "); 737 ohci_dump_ed(sc->sc_isoc_head); 738 } 739 #endif 740 741 /* Determine in what context we are running. */ 742 ctl = OREAD4(sc, OHCI_CONTROL); 743 if (ctl & OHCI_IR) { 744 /* SMM active, request change */ 745 DPRINTF(("ohci_init: SMM active, request owner change\n")); 746 s = OREAD4(sc, OHCI_COMMAND_STATUS); 747 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 748 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 749 usb_delay_ms(&sc->sc_bus, 1); 750 ctl = OREAD4(sc, OHCI_CONTROL); 751 } 752 if ((ctl & OHCI_IR) == 0) { 753 printf("%s: SMM does not respond, resetting\n", 754 USBDEVNAME(sc->sc_bus.bdev)); 755 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 756 goto reset; 757 } 758 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 759 /* BIOS started controller. */ 760 DPRINTF(("ohci_init: BIOS active\n")); 761 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 762 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 763 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 764 } 765 } else { 766 DPRINTF(("ohci_init: cold started\n")); 767 reset: 768 /* Controller was cold started. */ 769 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 770 } 771 772 /* 773 * This reset should not be necessary according to the OHCI spec, but 774 * without it some controllers do not start. 775 */ 776 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 777 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 778 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 779 780 /* We now own the host controller and the bus has been reset. */ 781 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 782 783 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 784 /* Nominal time for a reset is 10 us. */ 785 for (i = 0; i < 10; i++) { 786 delay(10); 787 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 788 if (!hcr) 789 break; 790 } 791 if (hcr) { 792 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 793 err = USBD_IOERROR; 794 goto bad5; 795 } 796 #ifdef OHCI_DEBUG 797 if (ohcidebug > 15) 798 ohci_dumpregs(sc); 799 #endif 800 801 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 802 803 /* Set up HC registers. */ 804 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 805 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 806 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 807 /* disable all interrupts and then switch on all desired interrupts */ 808 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 809 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 810 /* switch on desired functional features */ 811 ctl = OREAD4(sc, OHCI_CONTROL); 812 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 813 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 814 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 815 /* And finally start it! */ 816 OWRITE4(sc, OHCI_CONTROL, ctl); 817 818 /* 819 * The controller is now OPERATIONAL. Set a some final 820 * registers that should be set earlier, but that the 821 * controller ignores when in the SUSPEND state. 822 */ 823 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 824 fm |= OHCI_FSMPS(ival) | ival; 825 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 826 per = OHCI_PERIODIC(ival); /* 90% periodic */ 827 OWRITE4(sc, OHCI_PERIODIC_START, per); 828 829 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 830 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 831 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 832 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 833 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 834 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 835 836 /* 837 * The AMD756 requires a delay before re-reading the register, 838 * otherwise it will occasionally report 0 ports. 839 */ 840 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 841 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 842 843 #ifdef OHCI_DEBUG 844 if (ohcidebug > 5) 845 ohci_dumpregs(sc); 846 #endif 847 848 /* Set up the bus struct. */ 849 sc->sc_bus.methods = &ohci_bus_methods; 850 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 851 852 #if defined(__NetBSD__) || defined(__OpenBSD__) 853 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 854 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 855 #endif 856 857 return (USBD_NORMAL_COMPLETION); 858 859 bad5: 860 for (i = 0; i < OHCI_NO_EDS; i++) 861 ohci_free_sed(sc, sc->sc_eds[i]); 862 bad4: 863 ohci_free_sed(sc, sc->sc_isoc_head); 864 bad3: 865 ohci_free_sed(sc, sc->sc_ctrl_head); 866 bad2: 867 ohci_free_sed(sc, sc->sc_bulk_head); 868 bad1: 869 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 870 return (err); 871 } 872 873 usbd_status 874 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 875 { 876 #if defined(__NetBSD__) || defined(__OpenBSD__) 877 struct ohci_softc *sc = (struct ohci_softc *)bus; 878 #endif 879 880 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 881 } 882 883 void 884 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 885 { 886 #if defined(__NetBSD__) || defined(__OpenBSD__) 887 struct ohci_softc *sc = (struct ohci_softc *)bus; 888 #endif 889 890 usb_freemem(&sc->sc_bus, dma); 891 } 892 893 usbd_xfer_handle 894 ohci_allocx(struct usbd_bus *bus) 895 { 896 struct ohci_softc *sc = (struct ohci_softc *)bus; 897 usbd_xfer_handle xfer; 898 899 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 900 if (xfer != NULL) 901 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 902 else 903 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 904 if (xfer != NULL) 905 memset(xfer, 0, sizeof *xfer); 906 return (xfer); 907 } 908 909 void 910 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 911 { 912 struct ohci_softc *sc = (struct ohci_softc *)bus; 913 914 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 915 } 916 917 /* 918 * Shut down the controller when the system is going down. 919 */ 920 void 921 ohci_shutdown(void *v) 922 { 923 ohci_softc_t *sc = v; 924 925 DPRINTF(("ohci_shutdown: stopping the HC\n")); 926 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 927 } 928 929 /* 930 * Handle suspend/resume. 931 * 932 * We need to switch to polling mode here, because this routine is 933 * called from an intterupt context. This is all right since we 934 * are almost suspended anyway. 935 */ 936 void 937 ohci_power(int why, void *v) 938 { 939 #ifdef OHCI_DEBUG 940 ohci_softc_t *sc = v; 941 942 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 943 /* XXX should suspend/resume */ 944 ohci_dumpregs(sc); 945 #endif 946 } 947 948 #ifdef OHCI_DEBUG 949 void 950 ohci_dumpregs(ohci_softc_t *sc) 951 { 952 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 953 OREAD4(sc, OHCI_REVISION), 954 OREAD4(sc, OHCI_CONTROL), 955 OREAD4(sc, OHCI_COMMAND_STATUS))); 956 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 957 OREAD4(sc, OHCI_INTERRUPT_STATUS), 958 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 959 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 960 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 961 OREAD4(sc, OHCI_HCCA), 962 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 963 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 964 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 965 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 966 OREAD4(sc, OHCI_BULK_HEAD_ED), 967 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 968 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 969 OREAD4(sc, OHCI_DONE_HEAD), 970 OREAD4(sc, OHCI_FM_INTERVAL), 971 OREAD4(sc, OHCI_FM_REMAINING))); 972 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 973 OREAD4(sc, OHCI_FM_NUMBER), 974 OREAD4(sc, OHCI_PERIODIC_START), 975 OREAD4(sc, OHCI_LS_THRESHOLD))); 976 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 977 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 978 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 979 OREAD4(sc, OHCI_RH_STATUS))); 980 DPRINTF((" port1=0x%08x port2=0x%08x\n", 981 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 982 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 983 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 984 le32toh(sc->sc_hcca->hcca_frame_number), 985 le32toh(sc->sc_hcca->hcca_done_head))); 986 } 987 #endif 988 989 Static int ohci_intr1(ohci_softc_t *); 990 991 int 992 ohci_intr(void *p) 993 { 994 ohci_softc_t *sc = p; 995 996 /* If we get an interrupt while polling, then just ignore it. */ 997 if (sc->sc_bus.use_polling) { 998 #ifdef DIAGNOSTIC 999 printf("ohci_intr: ignored interrupt while polling\n"); 1000 #endif 1001 return (0); 1002 } 1003 1004 return (ohci_intr1(sc)); 1005 } 1006 1007 Static int 1008 ohci_intr1(ohci_softc_t *sc) 1009 { 1010 u_int32_t intrs, eintrs; 1011 ohci_physaddr_t done; 1012 1013 /* In case the interrupt occurs before initialization has completed. */ 1014 if (sc == NULL || sc->sc_hcca == NULL) { 1015 #ifdef DIAGNOSTIC 1016 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1017 #endif 1018 return (0); 1019 } 1020 1021 intrs = 0; 1022 done = le32toh(sc->sc_hcca->hcca_done_head); 1023 if (done != 0) { 1024 if (done & ~OHCI_DONE_INTRS) 1025 intrs = OHCI_WDH; 1026 if (done & OHCI_DONE_INTRS) 1027 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 1028 } else 1029 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1030 1031 if (!intrs) 1032 return (0); 1033 1034 intrs &= ~OHCI_MIE; 1035 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1036 eintrs = intrs & sc->sc_eintrs; 1037 if (!eintrs) 1038 return (0); 1039 1040 sc->sc_bus.intr_context++; 1041 sc->sc_bus.no_intrs++; 1042 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1043 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1044 (u_int)eintrs)); 1045 1046 if (eintrs & OHCI_SO) { 1047 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1048 /* XXX do what */ 1049 intrs &= ~OHCI_SO; 1050 } 1051 if (eintrs & OHCI_WDH) { 1052 ohci_add_done(sc, done &~ OHCI_DONE_INTRS); 1053 sc->sc_hcca->hcca_done_head = 0; 1054 usb_schedsoftintr(&sc->sc_bus); 1055 intrs &= ~OHCI_WDH; 1056 } 1057 if (eintrs & OHCI_RD) { 1058 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1059 /* XXX process resume detect */ 1060 } 1061 if (eintrs & OHCI_UE) { 1062 printf("%s: unrecoverable error, controller halted\n", 1063 USBDEVNAME(sc->sc_bus.bdev)); 1064 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1065 /* XXX what else */ 1066 } 1067 if (eintrs & OHCI_RHSC) { 1068 ohci_rhsc(sc, sc->sc_intrxfer); 1069 intrs &= ~OHCI_RHSC; 1070 1071 /* 1072 * Disable RHSC interrupt for now, because it will be 1073 * on until the port has been reset. 1074 */ 1075 ohci_rhsc_able(sc, 0); 1076 } 1077 1078 sc->sc_bus.intr_context--; 1079 1080 /* Block unprocessed interrupts. XXX */ 1081 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1082 sc->sc_eintrs &= ~intrs; 1083 1084 return (1); 1085 } 1086 1087 void 1088 ohci_rhsc_able(ohci_softc_t *sc, int on) 1089 { 1090 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1091 if (on) { 1092 sc->sc_eintrs |= OHCI_RHSC; 1093 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1094 } else { 1095 sc->sc_eintrs &= ~OHCI_RHSC; 1096 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1097 } 1098 } 1099 1100 #ifdef OHCI_DEBUG 1101 char *ohci_cc_strs[] = { 1102 "NO_ERROR", 1103 "CRC", 1104 "BIT_STUFFING", 1105 "DATA_TOGGLE_MISMATCH", 1106 "STALL", 1107 "DEVICE_NOT_RESPONDING", 1108 "PID_CHECK_FAILURE", 1109 "UNEXPECTED_PID", 1110 "DATA_OVERRUN", 1111 "DATA_UNDERRUN", 1112 "BUFFER_OVERRUN", 1113 "BUFFER_UNDERRUN", 1114 "reserved", 1115 "reserved", 1116 "NOT_ACCESSED", 1117 "NOT_ACCESSED", 1118 }; 1119 #endif 1120 1121 void 1122 ohci_add_done(ohci_softc_t *sc, ohci_physaddr_t done) 1123 { 1124 ohci_soft_itd_t *sitd, *sidone, **ip; 1125 ohci_soft_td_t *std, *sdone, **p; 1126 1127 /* Reverse the done list. */ 1128 for (sdone = NULL, sidone = NULL; done != 0; ) { 1129 std = ohci_hash_find_td(sc, done); 1130 if (std != NULL) { 1131 std->dnext = sdone; 1132 done = le32toh(std->td.td_nexttd); 1133 sdone = std; 1134 DPRINTFN(10,("add TD %p\n", std)); 1135 continue; 1136 } 1137 sitd = ohci_hash_find_itd(sc, done); 1138 if (sitd != NULL) { 1139 sitd->dnext = sidone; 1140 done = le32toh(sitd->itd.itd_nextitd); 1141 sidone = sitd; 1142 DPRINTFN(5,("add ITD %p\n", sitd)); 1143 continue; 1144 } 1145 panic("ohci_add_done: addr 0x%08lx not found\n", (u_long)done); 1146 } 1147 1148 /* sdone & sidone now hold the done lists. */ 1149 /* Put them on the already processed lists. */ 1150 for (p = &sc->sc_sdone; *p != NULL; p = &(*p)->dnext) 1151 ; 1152 *p = sdone; 1153 for (ip = &sc->sc_sidone; *ip != NULL; ip = &(*ip)->dnext) 1154 ; 1155 *ip = sidone; 1156 } 1157 1158 void 1159 ohci_softintr(struct usbd_bus *bus) 1160 { 1161 ohci_softc_t *sc = (ohci_softc_t *)bus; 1162 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1163 ohci_soft_td_t *std, *sdone, *stdnext; 1164 usbd_xfer_handle xfer; 1165 int len, cc, s; 1166 1167 sc->sc_bus.intr_context++; 1168 1169 s = splhardusb(); 1170 sdone = sc->sc_sdone; 1171 sc->sc_sdone = NULL; 1172 sidone = sc->sc_sidone; 1173 sc->sc_sidone = NULL; 1174 splx(s); 1175 1176 DPRINTFN(10,("ohci_process_done: sdone=%p sidone=%p\n", sdone, sidone)); 1177 1178 #ifdef OHCI_DEBUG 1179 if (ohcidebug > 10) { 1180 DPRINTF(("ohci_process_done: TD done:\n")); 1181 ohci_dump_tds(sdone); 1182 } 1183 #endif 1184 1185 for (std = sdone; std; std = stdnext) { 1186 xfer = std->xfer; 1187 stdnext = std->dnext; 1188 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1189 std, xfer, xfer ? xfer->hcpriv : 0)); 1190 if (xfer == NULL) { 1191 /* xfer == NULL: There seems to be no xfer associated 1192 * with this TD. It is tailp that happened to end up on 1193 * the done queue. 1194 */ 1195 continue; 1196 } 1197 if (xfer->status == USBD_CANCELLED || 1198 xfer->status == USBD_TIMEOUT) { 1199 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1200 xfer)); 1201 /* Handled by abort routine. */ 1202 continue; 1203 } 1204 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1205 cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags)); 1206 if (cc == OHCI_CC_NO_ERROR) { 1207 len = std->len; 1208 if (std->td.td_cbp != 0) 1209 len -= le32toh(std->td.td_be) - 1210 le32toh(std->td.td_cbp) + 1; 1211 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", 1212 len, std->flags)); 1213 if (std->flags & OHCI_ADD_LEN) 1214 xfer->actlen += len; 1215 if (std->flags & OHCI_CALL_DONE) { 1216 xfer->status = USBD_NORMAL_COMPLETION; 1217 usb_transfer_complete(xfer); 1218 } 1219 ohci_free_std(sc, std); 1220 } else { 1221 /* 1222 * Endpoint is halted. First unlink all the TDs 1223 * belonging to the failed transfer, and then restart 1224 * the endpoint. 1225 */ 1226 ohci_soft_td_t *p, *n; 1227 struct ohci_pipe *opipe = 1228 (struct ohci_pipe *)xfer->pipe; 1229 1230 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1231 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1232 ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))])); 1233 1234 /* remove TDs */ 1235 for (p = std; p->xfer == xfer; p = n) { 1236 n = p->nexttd; 1237 ohci_free_std(sc, p); 1238 } 1239 1240 /* clear halt */ 1241 opipe->sed->ed.ed_headp = htole32(p->physaddr); 1242 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1243 1244 if (cc == OHCI_CC_STALL) 1245 xfer->status = USBD_STALLED; 1246 else 1247 xfer->status = USBD_IOERROR; 1248 usb_transfer_complete(xfer); 1249 } 1250 } 1251 1252 #ifdef OHCI_DEBUG 1253 if (ohcidebug > 10) { 1254 DPRINTF(("ohci_process_done: ITD done:\n")); 1255 ohci_dump_itds(sidone); 1256 } 1257 #endif 1258 1259 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1260 xfer = sitd->xfer; 1261 sitdnext = sitd->dnext; 1262 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1263 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1264 if (xfer == NULL) 1265 continue; 1266 if (xfer->status == USBD_CANCELLED || 1267 xfer->status == USBD_TIMEOUT) { 1268 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1269 xfer)); 1270 /* Handled by abort routine. */ 1271 continue; 1272 } 1273 #ifdef DIAGNOSTIC 1274 if (sitd->isdone) 1275 printf("ohci_softintr: sitd=%p is done\n", sitd); 1276 sitd->isdone = 1; 1277 #endif 1278 cc = OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)); 1279 if (cc == OHCI_CC_NO_ERROR) { 1280 /* XXX compute length for input */ 1281 struct ohci_pipe *opipe = 1282 (struct ohci_pipe *)xfer->pipe; 1283 if (sitd->flags & OHCI_CALL_DONE) { 1284 opipe->u.iso.inuse -= xfer->nframes; 1285 /* XXX xfer->actlen = actlen; */ 1286 xfer->status = USBD_NORMAL_COMPLETION; 1287 usb_transfer_complete(xfer); 1288 } 1289 } else { 1290 /* XXX Do more */ 1291 xfer->status = USBD_IOERROR; 1292 usb_transfer_complete(xfer); 1293 } 1294 } 1295 1296 sc->sc_bus.intr_context--; 1297 } 1298 1299 void 1300 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1301 { 1302 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1303 1304 #ifdef DIAGNOSTIC 1305 if (!(xfer->rqflags & URQ_REQUEST)) { 1306 panic("ohci_ctrl_done: not a request\n"); 1307 } 1308 #endif 1309 xfer->hcpriv = NULL; 1310 } 1311 1312 void 1313 ohci_device_intr_done(usbd_xfer_handle xfer) 1314 { 1315 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1316 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1317 ohci_soft_ed_t *sed = opipe->sed; 1318 ohci_soft_td_t *data, *tail; 1319 1320 1321 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1322 xfer, xfer->actlen)); 1323 1324 xfer->hcpriv = NULL; 1325 1326 if (xfer->pipe->repeat) { 1327 data = opipe->tail.td; 1328 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1329 if (tail == NULL) { 1330 xfer->status = USBD_NOMEM; 1331 return; 1332 } 1333 tail->xfer = NULL; 1334 1335 data->td.td_flags = htole32( 1336 OHCI_TD_IN | OHCI_TD_NOCC | 1337 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1338 if (xfer->flags & USBD_SHORT_XFER_OK) 1339 data->td.td_flags |= htole32(OHCI_TD_R); 1340 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 1341 data->nexttd = tail; 1342 data->td.td_nexttd = htole32(tail->physaddr); 1343 data->td.td_be = htole32(le32toh(data->td.td_cbp) + 1344 xfer->length - 1); 1345 data->len = xfer->length; 1346 data->xfer = xfer; 1347 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1348 xfer->hcpriv = data; 1349 xfer->actlen = 0; 1350 1351 sed->ed.ed_tailp = htole32(tail->physaddr); 1352 opipe->tail.td = tail; 1353 } 1354 } 1355 1356 void 1357 ohci_device_bulk_done(usbd_xfer_handle xfer) 1358 { 1359 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1360 xfer, xfer->actlen)); 1361 1362 xfer->hcpriv = NULL; 1363 } 1364 1365 void 1366 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1367 { 1368 usbd_pipe_handle pipe; 1369 struct ohci_pipe *opipe; 1370 u_char *p; 1371 int i, m; 1372 int hstatus; 1373 1374 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1375 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1376 sc, xfer, hstatus)); 1377 1378 if (xfer == NULL) { 1379 /* Just ignore the change. */ 1380 return; 1381 } 1382 1383 pipe = xfer->pipe; 1384 opipe = (struct ohci_pipe *)pipe; 1385 1386 p = KERNADDR(&xfer->dmabuf); 1387 m = min(sc->sc_noport, xfer->length * 8 - 1); 1388 memset(p, 0, xfer->length); 1389 for (i = 1; i <= m; i++) { 1390 /* Pick out CHANGE bits from the status reg. */ 1391 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1392 p[i/8] |= 1 << (i%8); 1393 } 1394 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1395 xfer->actlen = xfer->length; 1396 xfer->status = USBD_NORMAL_COMPLETION; 1397 1398 usb_transfer_complete(xfer); 1399 } 1400 1401 void 1402 ohci_root_intr_done(usbd_xfer_handle xfer) 1403 { 1404 xfer->hcpriv = NULL; 1405 } 1406 1407 void 1408 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1409 { 1410 xfer->hcpriv = NULL; 1411 } 1412 1413 /* 1414 * Wait here until controller claims to have an interrupt. 1415 * Then call ohci_intr and return. Use timeout to avoid waiting 1416 * too long. 1417 */ 1418 void 1419 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1420 { 1421 int timo = xfer->timeout; 1422 int usecs; 1423 u_int32_t intrs; 1424 1425 xfer->status = USBD_IN_PROGRESS; 1426 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1427 usb_delay_ms(&sc->sc_bus, 1); 1428 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1429 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1430 #ifdef OHCI_DEBUG 1431 if (ohcidebug > 15) 1432 ohci_dumpregs(sc); 1433 #endif 1434 if (intrs) { 1435 ohci_intr1(sc); 1436 if (xfer->status != USBD_IN_PROGRESS) 1437 return; 1438 } 1439 } 1440 1441 /* Timeout */ 1442 DPRINTF(("ohci_waitintr: timeout\n")); 1443 xfer->status = USBD_TIMEOUT; 1444 usb_transfer_complete(xfer); 1445 /* XXX should free TD */ 1446 } 1447 1448 void 1449 ohci_poll(struct usbd_bus *bus) 1450 { 1451 ohci_softc_t *sc = (ohci_softc_t *)bus; 1452 1453 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1454 ohci_intr1(sc); 1455 } 1456 1457 usbd_status 1458 ohci_device_request(usbd_xfer_handle xfer) 1459 { 1460 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1461 usb_device_request_t *req = &xfer->request; 1462 usbd_device_handle dev = opipe->pipe.device; 1463 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1464 int addr = dev->address; 1465 ohci_soft_td_t *setup, *stat, *next, *tail; 1466 ohci_soft_ed_t *sed; 1467 int isread; 1468 int len; 1469 usbd_status err; 1470 int s; 1471 1472 isread = req->bmRequestType & UT_READ; 1473 len = UGETW(req->wLength); 1474 1475 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1476 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1477 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1478 UGETW(req->wIndex), len, addr, 1479 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1480 1481 setup = opipe->tail.td; 1482 stat = ohci_alloc_std(sc); 1483 if (stat == NULL) { 1484 err = USBD_NOMEM; 1485 goto bad1; 1486 } 1487 tail = ohci_alloc_std(sc); 1488 if (tail == NULL) { 1489 err = USBD_NOMEM; 1490 goto bad2; 1491 } 1492 tail->xfer = NULL; 1493 1494 sed = opipe->sed; 1495 opipe->u.ctl.length = len; 1496 1497 /* Update device address and length since they may have changed. */ 1498 /* XXX This only needs to be done once, but it's too early in open. */ 1499 /* XXXX Should not touch ED here! */ 1500 sed->ed.ed_flags = htole32( 1501 (le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1502 OHCI_ED_SET_FA(addr) | 1503 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1504 1505 next = stat; 1506 1507 /* Set up data transaction */ 1508 if (len != 0) { 1509 ohci_soft_td_t *std = stat; 1510 1511 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1512 std, &stat); 1513 stat = stat->nexttd; /* point at free TD */ 1514 if (err) 1515 goto bad3; 1516 /* Start toggle at 1 and then use the carried toggle. */ 1517 std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK); 1518 std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1); 1519 } 1520 1521 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1522 1523 setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1524 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1525 setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma)); 1526 setup->nexttd = next; 1527 setup->td.td_nexttd = htole32(next->physaddr); 1528 setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1); 1529 setup->len = 0; 1530 setup->xfer = xfer; 1531 setup->flags = 0; 1532 xfer->hcpriv = setup; 1533 1534 stat->td.td_flags = htole32( 1535 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1536 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1537 stat->td.td_cbp = 0; 1538 stat->nexttd = tail; 1539 stat->td.td_nexttd = htole32(tail->physaddr); 1540 stat->td.td_be = 0; 1541 stat->flags = OHCI_CALL_DONE; 1542 stat->len = 0; 1543 stat->xfer = xfer; 1544 1545 #ifdef OHCI_DEBUG 1546 if (ohcidebug > 5) { 1547 DPRINTF(("ohci_device_request:\n")); 1548 ohci_dump_ed(sed); 1549 ohci_dump_tds(setup); 1550 } 1551 #endif 1552 1553 /* Insert ED in schedule */ 1554 s = splusb(); 1555 sed->ed.ed_tailp = htole32(tail->physaddr); 1556 opipe->tail.td = tail; 1557 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1558 if (xfer->timeout && !sc->sc_bus.use_polling) { 1559 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1560 ohci_timeout, xfer); 1561 } 1562 splx(s); 1563 1564 #if 0 1565 if (ohcidebug > 10) { 1566 delay(10000); 1567 DPRINTF(("ohci_device_request: status=%x\n", 1568 OREAD4(sc, OHCI_COMMAND_STATUS))); 1569 ohci_dump_ed(sed); 1570 ohci_dump_tds(setup); 1571 } 1572 #endif 1573 1574 return (USBD_NORMAL_COMPLETION); 1575 1576 bad3: 1577 ohci_free_std(sc, tail); 1578 bad2: 1579 ohci_free_std(sc, stat); 1580 bad1: 1581 return (err); 1582 } 1583 1584 /* 1585 * Add an ED to the schedule. Called at splusb(). 1586 */ 1587 void 1588 ohci_add_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1589 { 1590 SPLUSBCHECK; 1591 sed->next = head->next; 1592 sed->ed.ed_nexted = head->ed.ed_nexted; 1593 head->next = sed; 1594 head->ed.ed_nexted = htole32(sed->physaddr); 1595 } 1596 1597 /* 1598 * Remove an ED from the schedule. Called at splusb(). 1599 */ 1600 void 1601 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1602 { 1603 ohci_soft_ed_t *p; 1604 1605 SPLUSBCHECK; 1606 1607 /* XXX */ 1608 for (p = head; p == NULL && p->next != sed; p = p->next) 1609 ; 1610 if (p == NULL) 1611 panic("ohci_rem_ed: ED not found\n"); 1612 p->next = sed->next; 1613 p->ed.ed_nexted = sed->ed.ed_nexted; 1614 } 1615 1616 /* 1617 * When a transfer is completed the TD is added to the done queue by 1618 * the host controller. This queue is the processed by software. 1619 * Unfortunately the queue contains the physical address of the TD 1620 * and we have no simple way to translate this back to a kernel address. 1621 * To make the translation possible (and fast) we use a hash table of 1622 * TDs currently in the schedule. The physical address is used as the 1623 * hash value. 1624 */ 1625 1626 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1627 /* Called at splusb() */ 1628 void 1629 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1630 { 1631 int h = HASH(std->physaddr); 1632 1633 SPLUSBCHECK; 1634 1635 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1636 } 1637 1638 /* Called at splusb() */ 1639 void 1640 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1641 { 1642 SPLUSBCHECK; 1643 1644 LIST_REMOVE(std, hnext); 1645 } 1646 1647 ohci_soft_td_t * 1648 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1649 { 1650 int h = HASH(a); 1651 ohci_soft_td_t *std; 1652 1653 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1654 std != NULL; 1655 std = LIST_NEXT(std, hnext)) 1656 if (std->physaddr == a) 1657 return (std); 1658 return (NULL); 1659 } 1660 1661 /* Called at splusb() */ 1662 void 1663 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1664 { 1665 int h = HASH(sitd->physaddr); 1666 1667 SPLUSBCHECK; 1668 1669 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1670 sitd, (u_long)sitd->physaddr)); 1671 1672 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1673 } 1674 1675 /* Called at splusb() */ 1676 void 1677 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1678 { 1679 SPLUSBCHECK; 1680 1681 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1682 sitd, (u_long)sitd->physaddr)); 1683 1684 LIST_REMOVE(sitd, hnext); 1685 } 1686 1687 ohci_soft_itd_t * 1688 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1689 { 1690 int h = HASH(a); 1691 ohci_soft_itd_t *sitd; 1692 1693 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1694 sitd != NULL; 1695 sitd = LIST_NEXT(sitd, hnext)) 1696 if (sitd->physaddr == a) 1697 return (sitd); 1698 return (NULL); 1699 } 1700 1701 void 1702 ohci_timeout(void *addr) 1703 { 1704 usbd_xfer_handle xfer = addr; 1705 int s; 1706 1707 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1708 1709 s = splusb(); 1710 xfer->device->bus->intr_context++; 1711 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1712 xfer->device->bus->intr_context--; 1713 splx(s); 1714 } 1715 1716 #ifdef OHCI_DEBUG 1717 void 1718 ohci_dump_tds(ohci_soft_td_t *std) 1719 { 1720 for (; std; std = std->nexttd) 1721 ohci_dump_td(std); 1722 } 1723 1724 void 1725 ohci_dump_td(ohci_soft_td_t *std) 1726 { 1727 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1728 "nexttd=0x%08lx be=0x%08lx\n", 1729 std, (u_long)std->physaddr, 1730 (int)le32toh(std->td.td_flags), 1731 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1732 OHCI_TD_GET_DI(le32toh(std->td.td_flags)), 1733 OHCI_TD_GET_EC(le32toh(std->td.td_flags)), 1734 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1735 (u_long)le32toh(std->td.td_cbp), 1736 (u_long)le32toh(std->td.td_nexttd), 1737 (u_long)le32toh(std->td.td_be))); 1738 } 1739 1740 void 1741 ohci_dump_itd(ohci_soft_itd_t *sitd) 1742 { 1743 int i; 1744 1745 DPRINTF(("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1746 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1747 sitd, (u_long)sitd->physaddr, 1748 OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)), 1749 OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)), 1750 OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)), 1751 OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)), 1752 (u_long)le32toh(sitd->itd.itd_bp0), 1753 (u_long)le32toh(sitd->itd.itd_nextitd), 1754 (u_long)le32toh(sitd->itd.itd_be))); 1755 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1756 DPRINTF(("offs[%d]=0x%04x ", i, 1757 (u_int)le16toh(sitd->itd.itd_offset[i]))); 1758 DPRINTF(("\n")); 1759 } 1760 1761 void 1762 ohci_dump_itds(ohci_soft_itd_t *sitd) 1763 { 1764 for (; sitd; sitd = sitd->nextitd) 1765 ohci_dump_itd(sitd); 1766 } 1767 1768 void 1769 ohci_dump_ed(ohci_soft_ed_t *sed) 1770 { 1771 DPRINTF(("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1772 "headflags=%b headp=0x%08lx nexted=0x%08lx\n", 1773 sed, (u_long)sed->physaddr, 1774 OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)), 1775 OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)), 1776 OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), 1777 (int)le32toh(sed->ed.ed_flags), 1778 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1779 (u_long)le32toh(sed->ed.ed_tailp), 1780 (u_long)le32toh(sed->ed.ed_headp), 1781 "\20\1HALT\2CARRY", 1782 (u_long)le32toh(sed->ed.ed_headp), 1783 (u_long)le32toh(sed->ed.ed_nexted))); 1784 } 1785 #endif 1786 1787 usbd_status 1788 ohci_open(usbd_pipe_handle pipe) 1789 { 1790 usbd_device_handle dev = pipe->device; 1791 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1792 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1793 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1794 u_int8_t addr = dev->address; 1795 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1796 ohci_soft_ed_t *sed; 1797 ohci_soft_td_t *std; 1798 ohci_soft_itd_t *sitd; 1799 ohci_physaddr_t tdphys; 1800 u_int32_t fmt; 1801 usbd_status err; 1802 int s; 1803 int ival; 1804 1805 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1806 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1807 1808 std = NULL; 1809 sed = NULL; 1810 1811 if (addr == sc->sc_addr) { 1812 switch (ed->bEndpointAddress) { 1813 case USB_CONTROL_ENDPOINT: 1814 pipe->methods = &ohci_root_ctrl_methods; 1815 break; 1816 case UE_DIR_IN | OHCI_INTR_ENDPT: 1817 pipe->methods = &ohci_root_intr_methods; 1818 break; 1819 default: 1820 return (USBD_INVAL); 1821 } 1822 } else { 1823 sed = ohci_alloc_sed(sc); 1824 if (sed == NULL) 1825 goto bad0; 1826 opipe->sed = sed; 1827 if (xfertype == UE_ISOCHRONOUS) { 1828 sitd = ohci_alloc_sitd(sc); 1829 if (sitd == NULL) { 1830 ohci_free_sitd(sc, sitd); 1831 goto bad1; 1832 } 1833 opipe->tail.itd = sitd; 1834 tdphys = sitd->physaddr; 1835 fmt = OHCI_ED_FORMAT_ISO; 1836 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 1837 fmt |= OHCI_ED_DIR_IN; 1838 else 1839 fmt |= OHCI_ED_DIR_OUT; 1840 } else { 1841 std = ohci_alloc_std(sc); 1842 if (std == NULL) { 1843 ohci_free_std(sc, std); 1844 goto bad1; 1845 } 1846 opipe->tail.td = std; 1847 tdphys = std->physaddr; 1848 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 1849 } 1850 sed->ed.ed_flags = htole32( 1851 OHCI_ED_SET_FA(addr) | 1852 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1853 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1854 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1855 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 1856 1857 switch (xfertype) { 1858 case UE_CONTROL: 1859 pipe->methods = &ohci_device_ctrl_methods; 1860 err = usb_allocmem(&sc->sc_bus, 1861 sizeof(usb_device_request_t), 1862 0, &opipe->u.ctl.reqdma); 1863 if (err) 1864 goto bad; 1865 s = splusb(); 1866 ohci_add_ed(sed, sc->sc_ctrl_head); 1867 splx(s); 1868 break; 1869 case UE_INTERRUPT: 1870 pipe->methods = &ohci_device_intr_methods; 1871 ival = pipe->interval; 1872 if (ival == USBD_DEFAULT_INTERVAL) 1873 ival = ed->bInterval; 1874 return (ohci_device_setintr(sc, opipe, ival)); 1875 case UE_ISOCHRONOUS: 1876 pipe->methods = &ohci_device_isoc_methods; 1877 return (ohci_setup_isoc(pipe)); 1878 case UE_BULK: 1879 pipe->methods = &ohci_device_bulk_methods; 1880 s = splusb(); 1881 ohci_add_ed(sed, sc->sc_bulk_head); 1882 splx(s); 1883 break; 1884 } 1885 } 1886 return (USBD_NORMAL_COMPLETION); 1887 1888 bad: 1889 if (std != NULL) 1890 ohci_free_std(sc, std); 1891 bad1: 1892 if (sed != NULL) 1893 ohci_free_sed(sc, sed); 1894 bad0: 1895 return (USBD_NOMEM); 1896 1897 } 1898 1899 /* 1900 * Close a reqular pipe. 1901 * Assumes that there are no pending transactions. 1902 */ 1903 void 1904 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 1905 { 1906 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1907 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1908 ohci_soft_ed_t *sed = opipe->sed; 1909 int s; 1910 1911 s = splusb(); 1912 #ifdef DIAGNOSTIC 1913 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 1914 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1915 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) { 1916 ohci_physaddr_t td = le32toh(sed->ed.ed_headp); 1917 ohci_soft_td_t *std; 1918 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1919 std != NULL; 1920 std = LIST_NEXT(std, hnext)) 1921 if (std->physaddr == td) 1922 break; 1923 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1924 "tl=0x%x pipe=%p, std=%p\n", sed, 1925 (int)le32toh(sed->ed.ed_headp), 1926 (int)le32toh(sed->ed.ed_tailp), 1927 pipe, std); 1928 usb_delay_ms(&sc->sc_bus, 2); 1929 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1930 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 1931 printf("ohci_close_pipe: pipe still not empty\n"); 1932 } 1933 #endif 1934 ohci_rem_ed(sed, head); 1935 splx(s); 1936 ohci_free_sed(sc, opipe->sed); 1937 } 1938 1939 /* 1940 * Abort a device request. 1941 * If this routine is called at splusb() it guarantees that the request 1942 * will be removed from the hardware scheduling and that the callback 1943 * for it will be called with USBD_CANCELLED status. 1944 * It's impossible to guarantee that the requested transfer will not 1945 * have happened since the hardware runs concurrently. 1946 * If the transaction has already happened we rely on the ordinary 1947 * interrupt processing to process it. 1948 */ 1949 void 1950 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1951 { 1952 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1953 ohci_soft_ed_t *sed; 1954 1955 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1956 1957 xfer->status = status; 1958 1959 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1960 1961 sed = opipe->sed; 1962 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1963 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 1964 1965 #if 1 1966 if (xfer->device->bus->intr_context) { 1967 /* We have no process context, so we can't use tsleep(). */ 1968 usb_callout(xfer->pipe->abort_handle, 1969 hz / USB_FRAMES_PER_SECOND, ohci_abort_xfer_end, xfer); 1970 } else { 1971 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1972 KASSERT(intr_nesting_level == 0, 1973 ("ohci_abort_req in interrupt context")); 1974 #endif 1975 usb_delay_ms(opipe->pipe.device->bus, 1); 1976 ohci_abort_xfer_end(xfer); 1977 } 1978 #else 1979 delay(1000); 1980 ohci_abort_xfer_end(xfer); 1981 #endif 1982 } 1983 1984 void 1985 ohci_abort_xfer_end(void *v) 1986 { 1987 usbd_xfer_handle xfer = v; 1988 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1989 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1990 ohci_soft_ed_t *sed; 1991 ohci_soft_td_t *p, *n; 1992 int s; 1993 1994 s = splusb(); 1995 1996 p = xfer->hcpriv; 1997 #ifdef DIAGNOSTIC 1998 if (p == NULL) { 1999 printf("ohci_abort_xfer: hcpriv==0\n"); 2000 return; 2001 } 2002 #endif 2003 for (; p->xfer == xfer; p = n) { 2004 n = p->nexttd; 2005 ohci_free_std(sc, p); 2006 } 2007 2008 sed = opipe->sed; 2009 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 2010 (int)p->physaddr, (int)le32toh(sed->ed.ed_tailp))); 2011 sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */ 2012 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 2013 2014 usb_transfer_complete(xfer); 2015 2016 splx(s); 2017 } 2018 2019 /* 2020 * Data structures and routines to emulate the root hub. 2021 */ 2022 Static usb_device_descriptor_t ohci_devd = { 2023 USB_DEVICE_DESCRIPTOR_SIZE, 2024 UDESC_DEVICE, /* type */ 2025 {0x00, 0x01}, /* USB version */ 2026 UDCLASS_HUB, /* class */ 2027 UDSUBCLASS_HUB, /* subclass */ 2028 0, /* protocol */ 2029 64, /* max packet */ 2030 {0},{0},{0x00,0x01}, /* device id */ 2031 1,2,0, /* string indicies */ 2032 1 /* # of configurations */ 2033 }; 2034 2035 Static usb_config_descriptor_t ohci_confd = { 2036 USB_CONFIG_DESCRIPTOR_SIZE, 2037 UDESC_CONFIG, 2038 {USB_CONFIG_DESCRIPTOR_SIZE + 2039 USB_INTERFACE_DESCRIPTOR_SIZE + 2040 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2041 1, 2042 1, 2043 0, 2044 UC_SELF_POWERED, 2045 0 /* max power */ 2046 }; 2047 2048 Static usb_interface_descriptor_t ohci_ifcd = { 2049 USB_INTERFACE_DESCRIPTOR_SIZE, 2050 UDESC_INTERFACE, 2051 0, 2052 0, 2053 1, 2054 UICLASS_HUB, 2055 UISUBCLASS_HUB, 2056 0, 2057 0 2058 }; 2059 2060 Static usb_endpoint_descriptor_t ohci_endpd = { 2061 USB_ENDPOINT_DESCRIPTOR_SIZE, 2062 UDESC_ENDPOINT, 2063 UE_DIR_IN | OHCI_INTR_ENDPT, 2064 UE_INTERRUPT, 2065 {8, 0}, /* max packet */ 2066 255 2067 }; 2068 2069 Static usb_hub_descriptor_t ohci_hubd = { 2070 USB_HUB_DESCRIPTOR_SIZE, 2071 UDESC_HUB, 2072 0, 2073 {0,0}, 2074 0, 2075 0, 2076 {0}, 2077 }; 2078 2079 Static int 2080 ohci_str(p, l, s) 2081 usb_string_descriptor_t *p; 2082 int l; 2083 char *s; 2084 { 2085 int i; 2086 2087 if (l == 0) 2088 return (0); 2089 p->bLength = 2 * strlen(s) + 2; 2090 if (l == 1) 2091 return (1); 2092 p->bDescriptorType = UDESC_STRING; 2093 l -= 2; 2094 for (i = 0; s[i] && l > 1; i++, l -= 2) 2095 USETW2(p->bString[i], 0, s[i]); 2096 return (2*i+2); 2097 } 2098 2099 /* 2100 * Simulate a hardware hub by handling all the necessary requests. 2101 */ 2102 Static usbd_status 2103 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2104 { 2105 usbd_status err; 2106 2107 /* Insert last in queue. */ 2108 err = usb_insert_transfer(xfer); 2109 if (err) 2110 return (err); 2111 2112 /* Pipe isn't running, start first */ 2113 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2114 } 2115 2116 Static usbd_status 2117 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2118 { 2119 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2120 usb_device_request_t *req; 2121 void *buf = NULL; 2122 int port, i; 2123 int s, len, value, index, l, totlen = 0; 2124 usb_port_status_t ps; 2125 usb_hub_descriptor_t hubd; 2126 usbd_status err; 2127 u_int32_t v; 2128 2129 if (sc->sc_dying) 2130 return (USBD_IOERROR); 2131 2132 #ifdef DIAGNOSTIC 2133 if (!(xfer->rqflags & URQ_REQUEST)) 2134 /* XXX panic */ 2135 return (USBD_INVAL); 2136 #endif 2137 req = &xfer->request; 2138 2139 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2140 req->bmRequestType, req->bRequest)); 2141 2142 len = UGETW(req->wLength); 2143 value = UGETW(req->wValue); 2144 index = UGETW(req->wIndex); 2145 2146 if (len != 0) 2147 buf = KERNADDR(&xfer->dmabuf); 2148 2149 #define C(x,y) ((x) | ((y) << 8)) 2150 switch(C(req->bRequest, req->bmRequestType)) { 2151 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2152 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2153 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2154 /* 2155 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2156 * for the integrated root hub. 2157 */ 2158 break; 2159 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2160 if (len > 0) { 2161 *(u_int8_t *)buf = sc->sc_conf; 2162 totlen = 1; 2163 } 2164 break; 2165 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2166 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2167 switch(value >> 8) { 2168 case UDESC_DEVICE: 2169 if ((value & 0xff) != 0) { 2170 err = USBD_IOERROR; 2171 goto ret; 2172 } 2173 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2174 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2175 memcpy(buf, &ohci_devd, l); 2176 break; 2177 case UDESC_CONFIG: 2178 if ((value & 0xff) != 0) { 2179 err = USBD_IOERROR; 2180 goto ret; 2181 } 2182 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2183 memcpy(buf, &ohci_confd, l); 2184 buf = (char *)buf + l; 2185 len -= l; 2186 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2187 totlen += l; 2188 memcpy(buf, &ohci_ifcd, l); 2189 buf = (char *)buf + l; 2190 len -= l; 2191 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2192 totlen += l; 2193 memcpy(buf, &ohci_endpd, l); 2194 break; 2195 case UDESC_STRING: 2196 if (len == 0) 2197 break; 2198 *(u_int8_t *)buf = 0; 2199 totlen = 1; 2200 switch (value & 0xff) { 2201 case 1: /* Vendor */ 2202 totlen = ohci_str(buf, len, sc->sc_vendor); 2203 break; 2204 case 2: /* Product */ 2205 totlen = ohci_str(buf, len, "OHCI root hub"); 2206 break; 2207 } 2208 break; 2209 default: 2210 err = USBD_IOERROR; 2211 goto ret; 2212 } 2213 break; 2214 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2215 if (len > 0) { 2216 *(u_int8_t *)buf = 0; 2217 totlen = 1; 2218 } 2219 break; 2220 case C(UR_GET_STATUS, UT_READ_DEVICE): 2221 if (len > 1) { 2222 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2223 totlen = 2; 2224 } 2225 break; 2226 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2227 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2228 if (len > 1) { 2229 USETW(((usb_status_t *)buf)->wStatus, 0); 2230 totlen = 2; 2231 } 2232 break; 2233 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2234 if (value >= USB_MAX_DEVICES) { 2235 err = USBD_IOERROR; 2236 goto ret; 2237 } 2238 sc->sc_addr = value; 2239 break; 2240 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2241 if (value != 0 && value != 1) { 2242 err = USBD_IOERROR; 2243 goto ret; 2244 } 2245 sc->sc_conf = value; 2246 break; 2247 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2248 break; 2249 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2250 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2251 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2252 err = USBD_IOERROR; 2253 goto ret; 2254 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2255 break; 2256 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2257 break; 2258 /* Hub requests */ 2259 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2260 break; 2261 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2262 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2263 "port=%d feature=%d\n", 2264 index, value)); 2265 if (index < 1 || index > sc->sc_noport) { 2266 err = USBD_IOERROR; 2267 goto ret; 2268 } 2269 port = OHCI_RH_PORT_STATUS(index); 2270 switch(value) { 2271 case UHF_PORT_ENABLE: 2272 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2273 break; 2274 case UHF_PORT_SUSPEND: 2275 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2276 break; 2277 case UHF_PORT_POWER: 2278 /* Yes, writing to the LOW_SPEED bit clears power. */ 2279 OWRITE4(sc, port, UPS_LOW_SPEED); 2280 break; 2281 case UHF_C_PORT_CONNECTION: 2282 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2283 break; 2284 case UHF_C_PORT_ENABLE: 2285 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2286 break; 2287 case UHF_C_PORT_SUSPEND: 2288 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2289 break; 2290 case UHF_C_PORT_OVER_CURRENT: 2291 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2292 break; 2293 case UHF_C_PORT_RESET: 2294 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2295 break; 2296 default: 2297 err = USBD_IOERROR; 2298 goto ret; 2299 } 2300 switch(value) { 2301 case UHF_C_PORT_CONNECTION: 2302 case UHF_C_PORT_ENABLE: 2303 case UHF_C_PORT_SUSPEND: 2304 case UHF_C_PORT_OVER_CURRENT: 2305 case UHF_C_PORT_RESET: 2306 /* Enable RHSC interrupt if condition is cleared. */ 2307 if ((OREAD4(sc, port) >> 16) == 0) 2308 ohci_rhsc_able(sc, 1); 2309 break; 2310 default: 2311 break; 2312 } 2313 break; 2314 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2315 if (value != 0) { 2316 err = USBD_IOERROR; 2317 goto ret; 2318 } 2319 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2320 hubd = ohci_hubd; 2321 hubd.bNbrPorts = sc->sc_noport; 2322 USETW(hubd.wHubCharacteristics, 2323 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2324 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2325 /* XXX overcurrent */ 2326 ); 2327 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2328 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2329 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2330 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2331 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2332 l = min(len, hubd.bDescLength); 2333 totlen = l; 2334 memcpy(buf, &hubd, l); 2335 break; 2336 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2337 if (len != 4) { 2338 err = USBD_IOERROR; 2339 goto ret; 2340 } 2341 memset(buf, 0, len); /* ? XXX */ 2342 totlen = len; 2343 break; 2344 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2345 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2346 index)); 2347 if (index < 1 || index > sc->sc_noport) { 2348 err = USBD_IOERROR; 2349 goto ret; 2350 } 2351 if (len != 4) { 2352 err = USBD_IOERROR; 2353 goto ret; 2354 } 2355 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2356 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2357 v)); 2358 USETW(ps.wPortStatus, v); 2359 USETW(ps.wPortChange, v >> 16); 2360 l = min(len, sizeof ps); 2361 memcpy(buf, &ps, l); 2362 totlen = l; 2363 break; 2364 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2365 err = USBD_IOERROR; 2366 goto ret; 2367 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2368 break; 2369 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2370 if (index < 1 || index > sc->sc_noport) { 2371 err = USBD_IOERROR; 2372 goto ret; 2373 } 2374 port = OHCI_RH_PORT_STATUS(index); 2375 switch(value) { 2376 case UHF_PORT_ENABLE: 2377 OWRITE4(sc, port, UPS_PORT_ENABLED); 2378 break; 2379 case UHF_PORT_SUSPEND: 2380 OWRITE4(sc, port, UPS_SUSPEND); 2381 break; 2382 case UHF_PORT_RESET: 2383 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2384 index)); 2385 OWRITE4(sc, port, UPS_RESET); 2386 for (i = 0; i < 10; i++) { 2387 usb_delay_ms(&sc->sc_bus, 10); 2388 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2389 break; 2390 } 2391 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2392 index, OREAD4(sc, port))); 2393 break; 2394 case UHF_PORT_POWER: 2395 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2396 "%d\n", index)); 2397 OWRITE4(sc, port, UPS_PORT_POWER); 2398 break; 2399 default: 2400 err = USBD_IOERROR; 2401 goto ret; 2402 } 2403 break; 2404 default: 2405 err = USBD_IOERROR; 2406 goto ret; 2407 } 2408 xfer->actlen = totlen; 2409 err = USBD_NORMAL_COMPLETION; 2410 ret: 2411 xfer->status = err; 2412 s = splusb(); 2413 usb_transfer_complete(xfer); 2414 splx(s); 2415 return (USBD_IN_PROGRESS); 2416 } 2417 2418 /* Abort a root control request. */ 2419 Static void 2420 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2421 { 2422 /* Nothing to do, all transfers are synchronous. */ 2423 } 2424 2425 /* Close the root pipe. */ 2426 Static void 2427 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2428 { 2429 DPRINTF(("ohci_root_ctrl_close\n")); 2430 /* Nothing to do. */ 2431 } 2432 2433 Static usbd_status 2434 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2435 { 2436 usbd_status err; 2437 2438 /* Insert last in queue. */ 2439 err = usb_insert_transfer(xfer); 2440 if (err) 2441 return (err); 2442 2443 /* Pipe isn't running, start first */ 2444 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2445 } 2446 2447 Static usbd_status 2448 ohci_root_intr_start(usbd_xfer_handle xfer) 2449 { 2450 usbd_pipe_handle pipe = xfer->pipe; 2451 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2452 2453 if (sc->sc_dying) 2454 return (USBD_IOERROR); 2455 2456 sc->sc_intrxfer = xfer; 2457 2458 return (USBD_IN_PROGRESS); 2459 } 2460 2461 /* Abort a root interrupt request. */ 2462 Static void 2463 ohci_root_intr_abort(usbd_xfer_handle xfer) 2464 { 2465 int s; 2466 2467 if (xfer->pipe->intrxfer == xfer) { 2468 DPRINTF(("ohci_root_intr_abort: remove\n")); 2469 xfer->pipe->intrxfer = NULL; 2470 } 2471 xfer->status = USBD_CANCELLED; 2472 s = splusb(); 2473 usb_transfer_complete(xfer); 2474 splx(s); 2475 } 2476 2477 /* Close the root pipe. */ 2478 Static void 2479 ohci_root_intr_close(usbd_pipe_handle pipe) 2480 { 2481 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2482 2483 DPRINTF(("ohci_root_intr_close\n")); 2484 2485 sc->sc_intrxfer = NULL; 2486 } 2487 2488 /************************/ 2489 2490 Static usbd_status 2491 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2492 { 2493 usbd_status err; 2494 2495 /* Insert last in queue. */ 2496 err = usb_insert_transfer(xfer); 2497 if (err) 2498 return (err); 2499 2500 /* Pipe isn't running, start first */ 2501 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2502 } 2503 2504 Static usbd_status 2505 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2506 { 2507 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2508 usbd_status err; 2509 2510 if (sc->sc_dying) 2511 return (USBD_IOERROR); 2512 2513 #ifdef DIAGNOSTIC 2514 if (!(xfer->rqflags & URQ_REQUEST)) { 2515 /* XXX panic */ 2516 printf("ohci_device_ctrl_transfer: not a request\n"); 2517 return (USBD_INVAL); 2518 } 2519 #endif 2520 2521 err = ohci_device_request(xfer); 2522 if (err) 2523 return (err); 2524 2525 if (sc->sc_bus.use_polling) 2526 ohci_waitintr(sc, xfer); 2527 return (USBD_IN_PROGRESS); 2528 } 2529 2530 /* Abort a device control request. */ 2531 Static void 2532 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2533 { 2534 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2535 ohci_abort_xfer(xfer, USBD_CANCELLED); 2536 } 2537 2538 /* Close a device control pipe. */ 2539 Static void 2540 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2541 { 2542 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2543 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2544 2545 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2546 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2547 ohci_free_std(sc, opipe->tail.td); 2548 } 2549 2550 /************************/ 2551 2552 Static void 2553 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2554 { 2555 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2556 2557 opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY); 2558 } 2559 2560 Static void 2561 ohci_noop(usbd_pipe_handle pipe) 2562 { 2563 } 2564 2565 Static usbd_status 2566 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2567 { 2568 usbd_status err; 2569 2570 /* Insert last in queue. */ 2571 err = usb_insert_transfer(xfer); 2572 if (err) 2573 return (err); 2574 2575 /* Pipe isn't running, start first */ 2576 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2577 } 2578 2579 Static usbd_status 2580 ohci_device_bulk_start(usbd_xfer_handle xfer) 2581 { 2582 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2583 usbd_device_handle dev = opipe->pipe.device; 2584 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2585 int addr = dev->address; 2586 ohci_soft_td_t *data, *tail, *tdp; 2587 ohci_soft_ed_t *sed; 2588 int s, len, isread, endpt; 2589 usbd_status err; 2590 2591 if (sc->sc_dying) 2592 return (USBD_IOERROR); 2593 2594 #ifdef DIAGNOSTIC 2595 if (xfer->rqflags & URQ_REQUEST) { 2596 /* XXX panic */ 2597 printf("ohci_device_bulk_start: a request\n"); 2598 return (USBD_INVAL); 2599 } 2600 #endif 2601 2602 len = xfer->length; 2603 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2604 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2605 sed = opipe->sed; 2606 2607 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2608 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2609 endpt)); 2610 2611 opipe->u.bulk.isread = isread; 2612 opipe->u.bulk.length = len; 2613 2614 /* Update device address */ 2615 sed->ed.ed_flags = htole32( 2616 (le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2617 OHCI_ED_SET_FA(addr)); 2618 2619 /* Allocate a chain of new TDs (including a new tail). */ 2620 data = opipe->tail.td; 2621 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2622 data, &tail); 2623 /* We want interrupt at the end of the transfer. */ 2624 tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK); 2625 tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1)); 2626 tail->flags |= OHCI_CALL_DONE; 2627 tail = tail->nexttd; /* point at sentinel */ 2628 if (err) 2629 return (err); 2630 2631 tail->xfer = NULL; 2632 xfer->hcpriv = data; 2633 2634 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2635 "td_cbp=0x%08x td_be=0x%08x\n", 2636 (int)le32toh(sed->ed.ed_flags), 2637 (int)le32toh(data->td.td_flags), 2638 (int)le32toh(data->td.td_cbp), 2639 (int)le32toh(data->td.td_be))); 2640 2641 #ifdef OHCI_DEBUG 2642 if (ohcidebug > 5) { 2643 ohci_dump_ed(sed); 2644 ohci_dump_tds(data); 2645 } 2646 #endif 2647 2648 /* Insert ED in schedule */ 2649 s = splusb(); 2650 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2651 tdp->xfer = xfer; 2652 } 2653 sed->ed.ed_tailp = htole32(tail->physaddr); 2654 opipe->tail.td = tail; 2655 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2656 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2657 if (xfer->timeout && !sc->sc_bus.use_polling) { 2658 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2659 ohci_timeout, xfer); 2660 } 2661 2662 #if 0 2663 /* This goes wrong if we are too slow. */ 2664 if (ohcidebug > 10) { 2665 delay(10000); 2666 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2667 OREAD4(sc, OHCI_COMMAND_STATUS))); 2668 ohci_dump_ed(sed); 2669 ohci_dump_tds(data); 2670 } 2671 #endif 2672 2673 splx(s); 2674 2675 return (USBD_IN_PROGRESS); 2676 } 2677 2678 Static void 2679 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2680 { 2681 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2682 ohci_abort_xfer(xfer, USBD_CANCELLED); 2683 } 2684 2685 /* 2686 * Close a device bulk pipe. 2687 */ 2688 Static void 2689 ohci_device_bulk_close(usbd_pipe_handle pipe) 2690 { 2691 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2692 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2693 2694 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2695 ohci_close_pipe(pipe, sc->sc_bulk_head); 2696 ohci_free_std(sc, opipe->tail.td); 2697 } 2698 2699 /************************/ 2700 2701 Static usbd_status 2702 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2703 { 2704 usbd_status err; 2705 2706 /* Insert last in queue. */ 2707 err = usb_insert_transfer(xfer); 2708 if (err) 2709 return (err); 2710 2711 /* Pipe isn't running, start first */ 2712 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2713 } 2714 2715 Static usbd_status 2716 ohci_device_intr_start(usbd_xfer_handle xfer) 2717 { 2718 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2719 usbd_device_handle dev = opipe->pipe.device; 2720 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2721 ohci_soft_ed_t *sed = opipe->sed; 2722 ohci_soft_td_t *data, *tail; 2723 int len; 2724 int s; 2725 2726 if (sc->sc_dying) 2727 return (USBD_IOERROR); 2728 2729 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2730 "flags=%d priv=%p\n", 2731 xfer, xfer->length, xfer->flags, xfer->priv)); 2732 2733 #ifdef DIAGNOSTIC 2734 if (xfer->rqflags & URQ_REQUEST) 2735 panic("ohci_device_intr_transfer: a request\n"); 2736 #endif 2737 2738 len = xfer->length; 2739 2740 data = opipe->tail.td; 2741 tail = ohci_alloc_std(sc); 2742 if (tail == NULL) 2743 return (USBD_NOMEM); 2744 tail->xfer = NULL; 2745 2746 data->td.td_flags = htole32( 2747 OHCI_TD_IN | OHCI_TD_NOCC | 2748 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2749 if (xfer->flags & USBD_SHORT_XFER_OK) 2750 data->td.td_flags |= htole32(OHCI_TD_R); 2751 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 2752 data->nexttd = tail; 2753 data->td.td_nexttd = htole32(tail->physaddr); 2754 data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1); 2755 data->len = len; 2756 data->xfer = xfer; 2757 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2758 xfer->hcpriv = data; 2759 2760 #ifdef OHCI_DEBUG 2761 if (ohcidebug > 5) { 2762 DPRINTF(("ohci_device_intr_transfer:\n")); 2763 ohci_dump_ed(sed); 2764 ohci_dump_tds(data); 2765 } 2766 #endif 2767 2768 /* Insert ED in schedule */ 2769 s = splusb(); 2770 sed->ed.ed_tailp = htole32(tail->physaddr); 2771 opipe->tail.td = tail; 2772 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2773 2774 #if 0 2775 /* 2776 * This goes horribly wrong, printing thousands of descriptors, 2777 * because false references are followed due to the fact that the 2778 * TD is gone. 2779 */ 2780 if (ohcidebug > 5) { 2781 usb_delay_ms(&sc->sc_bus, 5); 2782 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2783 OREAD4(sc, OHCI_COMMAND_STATUS))); 2784 ohci_dump_ed(sed); 2785 ohci_dump_tds(data); 2786 } 2787 #endif 2788 splx(s); 2789 2790 return (USBD_IN_PROGRESS); 2791 } 2792 2793 /* Abort a device control request. */ 2794 Static void 2795 ohci_device_intr_abort(usbd_xfer_handle xfer) 2796 { 2797 if (xfer->pipe->intrxfer == xfer) { 2798 DPRINTF(("ohci_device_intr_abort: remove\n")); 2799 xfer->pipe->intrxfer = NULL; 2800 } 2801 ohci_abort_xfer(xfer, USBD_CANCELLED); 2802 } 2803 2804 /* Close a device interrupt pipe. */ 2805 Static void 2806 ohci_device_intr_close(usbd_pipe_handle pipe) 2807 { 2808 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2809 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2810 int nslots = opipe->u.intr.nslots; 2811 int pos = opipe->u.intr.pos; 2812 int j; 2813 ohci_soft_ed_t *p, *sed = opipe->sed; 2814 int s; 2815 2816 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2817 pipe, nslots, pos)); 2818 s = splusb(); 2819 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 2820 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2821 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2822 usb_delay_ms(&sc->sc_bus, 2); 2823 2824 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2825 ; 2826 #ifdef DIAGNOSTIC 2827 if (p == NULL) 2828 panic("ohci_device_intr_close: ED not found\n"); 2829 #endif 2830 p->next = sed->next; 2831 p->ed.ed_nexted = sed->ed.ed_nexted; 2832 splx(s); 2833 2834 for (j = 0; j < nslots; j++) 2835 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2836 2837 ohci_free_std(sc, opipe->tail.td); 2838 ohci_free_sed(sc, opipe->sed); 2839 } 2840 2841 Static usbd_status 2842 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 2843 { 2844 int i, j, s, best; 2845 u_int npoll, slow, shigh, nslots; 2846 u_int bestbw, bw; 2847 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2848 2849 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2850 if (ival == 0) { 2851 printf("ohci_setintr: 0 interval\n"); 2852 return (USBD_INVAL); 2853 } 2854 2855 npoll = OHCI_NO_INTRS; 2856 while (npoll > ival) 2857 npoll /= 2; 2858 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2859 2860 /* 2861 * We now know which level in the tree the ED must go into. 2862 * Figure out which slot has most bandwidth left over. 2863 * Slots to examine: 2864 * npoll 2865 * 1 0 2866 * 2 1 2 2867 * 4 3 4 5 6 2868 * 8 7 8 9 10 11 12 13 14 2869 * N (N-1) .. (N-1+N-1) 2870 */ 2871 slow = npoll-1; 2872 shigh = slow + npoll; 2873 nslots = OHCI_NO_INTRS / npoll; 2874 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2875 bw = 0; 2876 for (j = 0; j < nslots; j++) 2877 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2878 if (bw < bestbw) { 2879 best = i; 2880 bestbw = bw; 2881 } 2882 } 2883 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2884 best, slow, shigh, bestbw)); 2885 2886 s = splusb(); 2887 hsed = sc->sc_eds[best]; 2888 sed->next = hsed->next; 2889 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2890 hsed->next = sed; 2891 hsed->ed.ed_nexted = htole32(sed->physaddr); 2892 splx(s); 2893 2894 for (j = 0; j < nslots; j++) 2895 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2896 opipe->u.intr.nslots = nslots; 2897 opipe->u.intr.pos = best; 2898 2899 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2900 return (USBD_NORMAL_COMPLETION); 2901 } 2902 2903 /***********************/ 2904 2905 usbd_status 2906 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 2907 { 2908 usbd_status err; 2909 2910 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2911 2912 /* Put it on our queue, */ 2913 err = usb_insert_transfer(xfer); 2914 2915 /* bail out on error, */ 2916 if (err && err != USBD_IN_PROGRESS) 2917 return (err); 2918 2919 /* XXX should check inuse here */ 2920 2921 /* insert into schedule, */ 2922 ohci_device_isoc_enter(xfer); 2923 2924 /* and start if the pipe wasn't running */ 2925 if (!err) 2926 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2927 2928 return (err); 2929 } 2930 2931 void 2932 ohci_device_isoc_enter(usbd_xfer_handle xfer) 2933 { 2934 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2935 usbd_device_handle dev = opipe->pipe.device; 2936 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2937 ohci_soft_ed_t *sed = opipe->sed; 2938 struct iso *iso = &opipe->u.iso; 2939 ohci_soft_itd_t *sitd, *nsitd; 2940 ohci_physaddr_t buf, offs, noffs, bp0; 2941 int i, ncur, nframes; 2942 int s; 2943 2944 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 2945 "nframes=%d\n", 2946 iso->inuse, iso->next, xfer, xfer->nframes)); 2947 2948 if (sc->sc_dying) 2949 return; 2950 2951 if (iso->next == -1) { 2952 /* Not in use yet, schedule it a few frames ahead. */ 2953 iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5; 2954 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 2955 iso->next)); 2956 } 2957 2958 sitd = opipe->tail.itd; 2959 buf = DMAADDR(&xfer->dmabuf); 2960 bp0 = OHCI_PAGE(buf); 2961 offs = OHCI_PAGE_OFFSET(buf); 2962 nframes = xfer->nframes; 2963 xfer->hcpriv = sitd; 2964 for (i = ncur = 0; i < nframes; i++, ncur++) { 2965 noffs = offs + xfer->frlengths[i]; 2966 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2967 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 2968 2969 /* Allocate next ITD */ 2970 nsitd = ohci_alloc_sitd(sc); 2971 if (nsitd == NULL) { 2972 /* XXX what now? */ 2973 printf("%s: isoc TD alloc failed\n", 2974 USBDEVNAME(sc->sc_bus.bdev)); 2975 return; 2976 } 2977 2978 /* Fill current ITD */ 2979 sitd->itd.itd_flags = htole32( 2980 OHCI_ITD_NOCC | 2981 OHCI_ITD_SET_SF(iso->next) | 2982 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 2983 OHCI_ITD_SET_FC(ncur)); 2984 sitd->itd.itd_bp0 = htole32(bp0); 2985 sitd->nextitd = nsitd; 2986 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 2987 sitd->itd.itd_be = htole32(bp0 + offs - 1); 2988 sitd->xfer = xfer; 2989 sitd->flags = 0; 2990 2991 sitd = nsitd; 2992 iso->next = iso->next + ncur; 2993 bp0 = OHCI_PAGE(buf + offs); 2994 ncur = 0; 2995 } 2996 sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs)); 2997 offs = noffs; 2998 } 2999 nsitd = ohci_alloc_sitd(sc); 3000 if (nsitd == NULL) { 3001 /* XXX what now? */ 3002 printf("%s: isoc TD alloc failed\n", 3003 USBDEVNAME(sc->sc_bus.bdev)); 3004 return; 3005 } 3006 /* Fixup last used ITD */ 3007 sitd->itd.itd_flags = htole32( 3008 OHCI_ITD_NOCC | 3009 OHCI_ITD_SET_SF(iso->next) | 3010 OHCI_ITD_SET_DI(0) | 3011 OHCI_ITD_SET_FC(ncur)); 3012 sitd->itd.itd_bp0 = htole32(bp0); 3013 sitd->nextitd = nsitd; 3014 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3015 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3016 sitd->xfer = xfer; 3017 sitd->flags = OHCI_CALL_DONE; 3018 3019 iso->next = iso->next + ncur; 3020 iso->inuse += nframes; 3021 3022 xfer->actlen = offs; /* XXX pretend we did it all */ 3023 3024 xfer->status = USBD_IN_PROGRESS; 3025 3026 #ifdef OHCI_DEBUG 3027 if (ohcidebug > 5) { 3028 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3029 le32toh(sc->sc_hcca->hcca_frame_number))); 3030 ohci_dump_itds(xfer->hcpriv); 3031 ohci_dump_ed(sed); 3032 } 3033 #endif 3034 3035 s = splusb(); 3036 opipe->tail.itd = nsitd; 3037 sed->ed.ed_tailp = htole32(nsitd->physaddr); 3038 splx(s); 3039 3040 #ifdef OHCI_DEBUG 3041 if (ohcidebug > 5) { 3042 delay(150000); 3043 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3044 le32toh(sc->sc_hcca->hcca_frame_number))); 3045 ohci_dump_itds(xfer->hcpriv); 3046 ohci_dump_ed(sed); 3047 } 3048 #endif 3049 } 3050 3051 usbd_status 3052 ohci_device_isoc_start(usbd_xfer_handle xfer) 3053 { 3054 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3055 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3056 3057 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3058 3059 if (sc->sc_dying) 3060 return (USBD_IOERROR); 3061 3062 #ifdef DIAGNOSTIC 3063 if (xfer->status != USBD_IN_PROGRESS) 3064 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 3065 #endif 3066 3067 /* XXX anything to do? */ 3068 3069 return (USBD_IN_PROGRESS); 3070 } 3071 3072 void 3073 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3074 { 3075 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3076 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3077 ohci_soft_ed_t *sed; 3078 ohci_soft_itd_t *sitd; 3079 int s; 3080 3081 s = splusb(); 3082 3083 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3084 3085 /* Transfer is already done. */ 3086 if (xfer->status != USBD_NOT_STARTED && 3087 xfer->status != USBD_IN_PROGRESS) { 3088 splx(s); 3089 printf("ohci_device_isoc_abort: early return\n"); 3090 return; 3091 } 3092 3093 /* Give xfer the requested abort code. */ 3094 xfer->status = USBD_CANCELLED; 3095 3096 sed = opipe->sed; 3097 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 3098 3099 sitd = xfer->hcpriv; 3100 #ifdef DIAGNOSTIC 3101 if (sitd == NULL) { 3102 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3103 return; 3104 } 3105 #endif 3106 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3107 #ifdef DIAGNOSTIC 3108 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3109 sitd->isdone = 1; 3110 #endif 3111 } 3112 3113 splx(s); 3114 3115 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3116 3117 s = splusb(); 3118 3119 /* Run callback. */ 3120 usb_transfer_complete(xfer); 3121 3122 sed->ed.ed_headp = htole32(sitd->physaddr); /* unlink TDs */ 3123 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 3124 3125 splx(s); 3126 } 3127 3128 void 3129 ohci_device_isoc_done(usbd_xfer_handle xfer) 3130 { 3131 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3132 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3133 ohci_soft_itd_t *sitd, *nsitd; 3134 3135 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3136 3137 for (sitd = xfer->hcpriv; 3138 !(sitd->flags & OHCI_CALL_DONE); 3139 sitd = nsitd) { 3140 nsitd = sitd->nextitd; 3141 DPRINTFN(1,("ohci_device_isoc_done: free sitd=%p\n", sitd)); 3142 ohci_free_sitd(sc, sitd); 3143 } 3144 ohci_free_sitd(sc, sitd); 3145 xfer->hcpriv = NULL; 3146 } 3147 3148 usbd_status 3149 ohci_setup_isoc(usbd_pipe_handle pipe) 3150 { 3151 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3152 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3153 struct iso *iso = &opipe->u.iso; 3154 int s; 3155 3156 iso->next = -1; 3157 iso->inuse = 0; 3158 3159 s = splusb(); 3160 ohci_add_ed(opipe->sed, sc->sc_isoc_head); 3161 splx(s); 3162 3163 return (USBD_NORMAL_COMPLETION); 3164 } 3165 3166 void 3167 ohci_device_isoc_close(usbd_pipe_handle pipe) 3168 { 3169 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3170 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3171 int s; 3172 3173 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3174 3175 s = splusb(); 3176 ohci_rem_ed(opipe->sed, sc->sc_isoc_head); 3177 splx(s); 3178 ohci_close_pipe(pipe, sc->sc_isoc_head); 3179 #ifdef DIAGNOSTIC 3180 opipe->tail.itd->isdone = 1; 3181 #endif 3182 ohci_free_sitd(sc, opipe->tail.itd); 3183 } 3184