ohci.c revision 1.98
1 /* $NetBSD: ohci.c,v 1.98 2001/01/20 23:36:03 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 (at) 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: http://www.compaq.com/productinfo/development/openhci.html 45 * USB spec: http://www.usb.org/developers/data/usbspec.zip 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 #ifndef __NetBSD__ 96 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 97 #endif 98 #else 99 #define DPRINTF(x) 100 #define DPRINTFN(n,x) 101 #endif 102 103 /* 104 * The OHCI controller is little endian, so on big endian machines 105 * the data strored in memory needs to be swapped. 106 */ 107 #if defined(__FreeBSD__) || defined(__OpenBSD__) 108 #if BYTE_ORDER == BIG_ENDIAN 109 #define htole32(x) (bswap32(x)) 110 #define le32toh(x) (bswap32(x)) 111 #else 112 #define htole32(x) (x) 113 #define le32toh(x) (x) 114 #endif 115 #endif 116 117 struct ohci_pipe; 118 119 Static ohci_soft_ed_t *ohci_alloc_sed(ohci_softc_t *); 120 Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *); 121 122 Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *); 123 Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *); 124 125 Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *); 126 Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *); 127 128 #if 0 129 Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *, 130 ohci_soft_td_t *); 131 #endif 132 Static usbd_status ohci_alloc_std_chain(struct ohci_pipe *, 133 ohci_softc_t *, int, int, usbd_xfer_handle, 134 ohci_soft_td_t *, ohci_soft_td_t **); 135 136 Static void ohci_shutdown(void *v); 137 Static void ohci_power(int, void *); 138 Static usbd_status ohci_open(usbd_pipe_handle); 139 Static void ohci_poll(struct usbd_bus *); 140 Static void ohci_softintr(struct usbd_bus *); 141 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 142 Static void ohci_add_done(ohci_softc_t *, ohci_physaddr_t); 143 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 144 145 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 146 Static void ohci_add_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 147 Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 148 Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *); 149 Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *); 150 Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t); 151 Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *); 152 Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *); 153 Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t); 154 155 Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe); 156 Static void ohci_device_isoc_enter(usbd_xfer_handle); 157 158 Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 159 Static void ohci_freem(struct usbd_bus *, usb_dma_t *); 160 161 Static usbd_xfer_handle ohci_allocx(struct usbd_bus *); 162 Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle); 163 164 Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle); 165 Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle); 166 Static void ohci_root_ctrl_abort(usbd_xfer_handle); 167 Static void ohci_root_ctrl_close(usbd_pipe_handle); 168 Static void ohci_root_ctrl_done(usbd_xfer_handle); 169 170 Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle); 171 Static usbd_status ohci_root_intr_start(usbd_xfer_handle); 172 Static void ohci_root_intr_abort(usbd_xfer_handle); 173 Static void ohci_root_intr_close(usbd_pipe_handle); 174 Static void ohci_root_intr_done(usbd_xfer_handle); 175 176 Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle); 177 Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle); 178 Static void ohci_device_ctrl_abort(usbd_xfer_handle); 179 Static void ohci_device_ctrl_close(usbd_pipe_handle); 180 Static void ohci_device_ctrl_done(usbd_xfer_handle); 181 182 Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle); 183 Static usbd_status ohci_device_bulk_start(usbd_xfer_handle); 184 Static void ohci_device_bulk_abort(usbd_xfer_handle); 185 Static void ohci_device_bulk_close(usbd_pipe_handle); 186 Static void ohci_device_bulk_done(usbd_xfer_handle); 187 188 Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle); 189 Static usbd_status ohci_device_intr_start(usbd_xfer_handle); 190 Static void ohci_device_intr_abort(usbd_xfer_handle); 191 Static void ohci_device_intr_close(usbd_pipe_handle); 192 Static void ohci_device_intr_done(usbd_xfer_handle); 193 194 Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle); 195 Static usbd_status ohci_device_isoc_start(usbd_xfer_handle); 196 Static void ohci_device_isoc_abort(usbd_xfer_handle); 197 Static void ohci_device_isoc_close(usbd_pipe_handle); 198 Static void ohci_device_isoc_done(usbd_xfer_handle); 199 200 Static usbd_status ohci_device_setintr(ohci_softc_t *sc, 201 struct ohci_pipe *pipe, int ival); 202 203 Static int ohci_str(usb_string_descriptor_t *, int, char *); 204 205 Static void ohci_timeout(void *); 206 Static void ohci_rhsc_able(ohci_softc_t *, int); 207 208 Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *); 209 Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status); 210 Static void ohci_abort_xfer_end(void *); 211 212 Static void ohci_device_clear_toggle(usbd_pipe_handle pipe); 213 Static void ohci_noop(usbd_pipe_handle pipe); 214 215 #ifdef OHCI_DEBUG 216 Static void ohci_dumpregs(ohci_softc_t *); 217 Static void ohci_dump_tds(ohci_soft_td_t *); 218 Static void ohci_dump_td(ohci_soft_td_t *); 219 Static void ohci_dump_ed(ohci_soft_ed_t *); 220 Static void ohci_dump_itd(ohci_soft_itd_t *); 221 Static void ohci_dump_itds(ohci_soft_itd_t *); 222 #endif 223 224 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 225 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 226 #define OWRITE1(sc, r, x) \ 227 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 228 #define OWRITE2(sc, r, x) \ 229 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 230 #define OWRITE4(sc, r, x) \ 231 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 232 #define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 233 #define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 234 #define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 235 236 /* Reverse the bits in a value 0 .. 31 */ 237 Static u_int8_t revbits[OHCI_NO_INTRS] = 238 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 239 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 240 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 241 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 242 243 struct ohci_pipe { 244 struct usbd_pipe pipe; 245 ohci_soft_ed_t *sed; 246 union { 247 ohci_soft_td_t *td; 248 ohci_soft_itd_t *itd; 249 } tail; 250 /* Info needed for different pipe kinds. */ 251 union { 252 /* Control pipe */ 253 struct { 254 usb_dma_t reqdma; 255 u_int length; 256 ohci_soft_td_t *setup, *data, *stat; 257 } ctl; 258 /* Interrupt pipe */ 259 struct { 260 int nslots; 261 int pos; 262 } intr; 263 /* Bulk pipe */ 264 struct { 265 u_int length; 266 int isread; 267 } bulk; 268 /* Iso pipe */ 269 struct iso { 270 int next, inuse; 271 } iso; 272 } u; 273 }; 274 275 #define OHCI_INTR_ENDPT 1 276 277 Static struct usbd_bus_methods ohci_bus_methods = { 278 ohci_open, 279 ohci_softintr, 280 ohci_poll, 281 ohci_allocm, 282 ohci_freem, 283 ohci_allocx, 284 ohci_freex, 285 }; 286 287 Static struct usbd_pipe_methods ohci_root_ctrl_methods = { 288 ohci_root_ctrl_transfer, 289 ohci_root_ctrl_start, 290 ohci_root_ctrl_abort, 291 ohci_root_ctrl_close, 292 ohci_noop, 293 ohci_root_ctrl_done, 294 }; 295 296 Static struct usbd_pipe_methods ohci_root_intr_methods = { 297 ohci_root_intr_transfer, 298 ohci_root_intr_start, 299 ohci_root_intr_abort, 300 ohci_root_intr_close, 301 ohci_noop, 302 ohci_root_intr_done, 303 }; 304 305 Static struct usbd_pipe_methods ohci_device_ctrl_methods = { 306 ohci_device_ctrl_transfer, 307 ohci_device_ctrl_start, 308 ohci_device_ctrl_abort, 309 ohci_device_ctrl_close, 310 ohci_noop, 311 ohci_device_ctrl_done, 312 }; 313 314 Static struct usbd_pipe_methods ohci_device_intr_methods = { 315 ohci_device_intr_transfer, 316 ohci_device_intr_start, 317 ohci_device_intr_abort, 318 ohci_device_intr_close, 319 ohci_device_clear_toggle, 320 ohci_device_intr_done, 321 }; 322 323 Static struct usbd_pipe_methods ohci_device_bulk_methods = { 324 ohci_device_bulk_transfer, 325 ohci_device_bulk_start, 326 ohci_device_bulk_abort, 327 ohci_device_bulk_close, 328 ohci_device_clear_toggle, 329 ohci_device_bulk_done, 330 }; 331 332 Static struct usbd_pipe_methods ohci_device_isoc_methods = { 333 ohci_device_isoc_transfer, 334 ohci_device_isoc_start, 335 ohci_device_isoc_abort, 336 ohci_device_isoc_close, 337 ohci_noop, 338 ohci_device_isoc_done, 339 }; 340 341 #if defined(__NetBSD__) || defined(__OpenBSD__) 342 int 343 ohci_activate(device_ptr_t self, 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(struct ohci_softc *sc, int flags) 364 { 365 int rv = 0; 366 367 if (sc->sc_child != NULL) 368 rv = config_detach(sc->sc_child, flags); 369 370 if (rv != 0) 371 return (rv); 372 373 #if defined(__NetBSD__) || defined(__OpenBSD__) 374 powerhook_disestablish(sc->sc_powerhook); 375 shutdownhook_disestablish(sc->sc_shutdownhook); 376 #endif 377 378 /* free data structures XXX */ 379 380 return (rv); 381 } 382 #endif 383 384 ohci_soft_ed_t * 385 ohci_alloc_sed(ohci_softc_t *sc) 386 { 387 ohci_soft_ed_t *sed; 388 usbd_status err; 389 int i, offs; 390 usb_dma_t dma; 391 392 if (sc->sc_freeeds == NULL) { 393 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 394 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 395 OHCI_ED_ALIGN, &dma); 396 if (err) 397 return (0); 398 for(i = 0; i < OHCI_SED_CHUNK; i++) { 399 offs = i * OHCI_SED_SIZE; 400 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 401 sed->physaddr = DMAADDR(&dma) + offs; 402 sed->next = sc->sc_freeeds; 403 sc->sc_freeeds = sed; 404 } 405 } 406 sed = sc->sc_freeeds; 407 sc->sc_freeeds = sed->next; 408 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 409 sed->next = 0; 410 return (sed); 411 } 412 413 void 414 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 415 { 416 sed->next = sc->sc_freeeds; 417 sc->sc_freeeds = sed; 418 } 419 420 ohci_soft_td_t * 421 ohci_alloc_std(ohci_softc_t *sc) 422 { 423 ohci_soft_td_t *std; 424 usbd_status err; 425 int i, offs; 426 usb_dma_t dma; 427 int s; 428 429 if (sc->sc_freetds == NULL) { 430 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 431 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 432 OHCI_TD_ALIGN, &dma); 433 if (err) 434 return (NULL); 435 s = splusb(); 436 for(i = 0; i < OHCI_STD_CHUNK; i++) { 437 offs = i * OHCI_STD_SIZE; 438 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 439 std->physaddr = DMAADDR(&dma) + offs; 440 std->nexttd = sc->sc_freetds; 441 sc->sc_freetds = std; 442 } 443 splx(s); 444 } 445 446 s = splusb(); 447 std = sc->sc_freetds; 448 sc->sc_freetds = std->nexttd; 449 memset(&std->td, 0, sizeof(ohci_td_t)); 450 std->nexttd = NULL; 451 std->xfer = NULL; 452 ohci_hash_add_td(sc, std); 453 splx(s); 454 455 return (std); 456 } 457 458 void 459 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 460 { 461 int s; 462 463 s = splusb(); 464 ohci_hash_rem_td(sc, std); 465 std->nexttd = sc->sc_freetds; 466 sc->sc_freetds = std; 467 splx(s); 468 } 469 470 usbd_status 471 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 472 int alen, int rd, usbd_xfer_handle xfer, 473 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 474 { 475 ohci_soft_td_t *next, *cur; 476 ohci_physaddr_t dataphys, dataphysend; 477 u_int32_t tdflags; 478 int len, curlen; 479 usb_dma_t *dma = &xfer->dmabuf; 480 u_int16_t flags = xfer->flags; 481 482 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 483 484 len = alen; 485 cur = sp; 486 dataphys = DMAADDR(dma); 487 dataphysend = OHCI_PAGE(dataphys + len - 1); 488 tdflags = htole32( 489 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 490 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 491 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 492 493 for (;;) { 494 next = ohci_alloc_std(sc); 495 if (next == NULL) 496 goto nomem; 497 498 /* The OHCI hardware can handle at most one page crossing. */ 499 if (OHCI_PAGE(dataphys) == dataphysend || 500 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 501 /* we can handle it in this TD */ 502 curlen = len; 503 } else { 504 /* must use multiple TDs, fill as much as possible. */ 505 curlen = 2 * OHCI_PAGE_SIZE - 506 (dataphys & (OHCI_PAGE_SIZE-1)); 507 /* the length must be a multiple of the max size */ 508 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 509 #ifdef DIAGNOSTIC 510 if (curlen == 0) 511 panic("ohci_alloc_std: curlen == 0\n"); 512 #endif 513 } 514 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 515 "dataphysend=0x%08x len=%d curlen=%d\n", 516 dataphys, dataphysend, 517 len, curlen)); 518 len -= curlen; 519 520 cur->td.td_flags = tdflags; 521 cur->td.td_cbp = htole32(dataphys); 522 cur->nexttd = next; 523 cur->td.td_nexttd = htole32(next->physaddr); 524 cur->td.td_be = htole32(dataphys + curlen - 1); 525 cur->len = curlen; 526 cur->flags = OHCI_ADD_LEN; 527 cur->xfer = xfer; 528 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 529 dataphys, dataphys + curlen - 1)); 530 if (len == 0) 531 break; 532 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 533 dataphys += curlen; 534 cur = next; 535 } 536 if ((flags & USBD_FORCE_SHORT_XFER) && 537 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 538 /* Force a 0 length transfer at the end. */ 539 540 cur = next; 541 next = ohci_alloc_std(sc); 542 if (next == NULL) 543 goto nomem; 544 545 cur->td.td_flags = tdflags; 546 cur->td.td_cbp = 0; /* indicate 0 length packet */ 547 cur->nexttd = next; 548 cur->td.td_nexttd = htole32(next->physaddr); 549 cur->td.td_be = ~0; 550 cur->len = 0; 551 cur->flags = 0; 552 cur->xfer = xfer; 553 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 554 } 555 *ep = cur; 556 557 return (USBD_NORMAL_COMPLETION); 558 559 nomem: 560 /* XXX free chain */ 561 return (USBD_NOMEM); 562 } 563 564 #if 0 565 Static void 566 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 567 ohci_soft_td_t *stdend) 568 { 569 ohci_soft_td_t *p; 570 571 for (; std != stdend; std = p) { 572 p = std->nexttd; 573 ohci_free_std(sc, std); 574 } 575 } 576 #endif 577 578 ohci_soft_itd_t * 579 ohci_alloc_sitd(ohci_softc_t *sc) 580 { 581 ohci_soft_itd_t *sitd; 582 usbd_status err; 583 int i, s, offs; 584 usb_dma_t dma; 585 586 if (sc->sc_freeitds == NULL) { 587 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 588 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 589 OHCI_ITD_ALIGN, &dma); 590 if (err) 591 return (NULL); 592 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 593 offs = i * OHCI_SITD_SIZE; 594 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 595 sitd->physaddr = DMAADDR(&dma) + offs; 596 sitd->nextitd = sc->sc_freeitds; 597 sc->sc_freeitds = sitd; 598 } 599 } 600 601 s = splusb(); 602 sitd = sc->sc_freeitds; 603 sc->sc_freeitds = sitd->nextitd; 604 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 605 sitd->nextitd = NULL; 606 sitd->xfer = NULL; 607 ohci_hash_add_itd(sc, sitd); 608 splx(s); 609 610 #ifdef DIAGNOSTIC 611 sitd->isdone = 0; 612 #endif 613 614 return (sitd); 615 } 616 617 void 618 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 619 { 620 int s; 621 622 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 623 624 #ifdef DIAGNOSTIC 625 if (!sitd->isdone) { 626 panic("ohci_free_sitd: sitd=%p not done\n", sitd); 627 return; 628 } 629 #endif 630 631 s = splusb(); 632 ohci_hash_rem_itd(sc, sitd); 633 sitd->nextitd = sc->sc_freeitds; 634 sc->sc_freeitds = sitd; 635 splx(s); 636 } 637 638 usbd_status 639 ohci_init(ohci_softc_t *sc) 640 { 641 ohci_soft_ed_t *sed, *psed; 642 usbd_status err; 643 int i; 644 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 645 646 DPRINTF(("ohci_init: start\n")); 647 #if defined(__OpenBSD__) 648 printf(","); 649 #else 650 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 651 #endif 652 rev = OREAD4(sc, OHCI_REVISION); 653 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 654 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 655 656 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 657 printf("%s: unsupported OHCI revision\n", 658 USBDEVNAME(sc->sc_bus.bdev)); 659 sc->sc_bus.usbrev = USBREV_UNKNOWN; 660 return (USBD_INVAL); 661 } 662 sc->sc_bus.usbrev = USBREV_1_0; 663 664 for (i = 0; i < OHCI_HASH_SIZE; i++) 665 LIST_INIT(&sc->sc_hash_tds[i]); 666 for (i = 0; i < OHCI_HASH_SIZE; i++) 667 LIST_INIT(&sc->sc_hash_itds[i]); 668 669 SIMPLEQ_INIT(&sc->sc_free_xfers); 670 671 /* XXX determine alignment by R/W */ 672 /* Allocate the HCCA area. */ 673 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 674 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 675 if (err) 676 return (err); 677 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 678 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 679 680 sc->sc_eintrs = OHCI_NORMAL_INTRS; 681 682 /* Allocate dummy ED that starts the control list. */ 683 sc->sc_ctrl_head = ohci_alloc_sed(sc); 684 if (sc->sc_ctrl_head == NULL) { 685 err = USBD_NOMEM; 686 goto bad1; 687 } 688 sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 689 690 /* Allocate dummy ED that starts the bulk list. */ 691 sc->sc_bulk_head = ohci_alloc_sed(sc); 692 if (sc->sc_bulk_head == NULL) { 693 err = USBD_NOMEM; 694 goto bad2; 695 } 696 sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 697 698 /* Allocate dummy ED that starts the isochronous list. */ 699 sc->sc_isoc_head = ohci_alloc_sed(sc); 700 if (sc->sc_isoc_head == NULL) { 701 err = USBD_NOMEM; 702 goto bad3; 703 } 704 sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 705 706 /* Allocate all the dummy EDs that make up the interrupt tree. */ 707 for (i = 0; i < OHCI_NO_EDS; i++) { 708 sed = ohci_alloc_sed(sc); 709 if (sed == NULL) { 710 while (--i >= 0) 711 ohci_free_sed(sc, sc->sc_eds[i]); 712 err = USBD_NOMEM; 713 goto bad4; 714 } 715 /* All ED fields are set to 0. */ 716 sc->sc_eds[i] = sed; 717 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 718 if (i != 0) 719 psed = sc->sc_eds[(i-1) / 2]; 720 else 721 psed= sc->sc_isoc_head; 722 sed->next = psed; 723 sed->ed.ed_nexted = htole32(psed->physaddr); 724 } 725 /* 726 * Fill HCCA interrupt table. The bit reversal is to get 727 * the tree set up properly to spread the interrupts. 728 */ 729 for (i = 0; i < OHCI_NO_INTRS; i++) 730 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 731 htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 732 733 #ifdef OHCI_DEBUG 734 if (ohcidebug > 15) { 735 for (i = 0; i < OHCI_NO_EDS; i++) { 736 printf("ed#%d ", i); 737 ohci_dump_ed(sc->sc_eds[i]); 738 } 739 printf("iso "); 740 ohci_dump_ed(sc->sc_isoc_head); 741 } 742 #endif 743 744 /* Determine in what context we are running. */ 745 ctl = OREAD4(sc, OHCI_CONTROL); 746 if (ctl & OHCI_IR) { 747 /* SMM active, request change */ 748 DPRINTF(("ohci_init: SMM active, request owner change\n")); 749 s = OREAD4(sc, OHCI_COMMAND_STATUS); 750 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 751 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 752 usb_delay_ms(&sc->sc_bus, 1); 753 ctl = OREAD4(sc, OHCI_CONTROL); 754 } 755 if ((ctl & OHCI_IR) == 0) { 756 printf("%s: SMM does not respond, resetting\n", 757 USBDEVNAME(sc->sc_bus.bdev)); 758 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 759 goto reset; 760 } 761 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 762 /* BIOS started controller. */ 763 DPRINTF(("ohci_init: BIOS active\n")); 764 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 765 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 766 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 767 } 768 } else { 769 DPRINTF(("ohci_init: cold started\n")); 770 reset: 771 /* Controller was cold started. */ 772 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 773 } 774 775 /* 776 * This reset should not be necessary according to the OHCI spec, but 777 * without it some controllers do not start. 778 */ 779 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 780 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 781 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 782 783 /* We now own the host controller and the bus has been reset. */ 784 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 785 786 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 787 /* Nominal time for a reset is 10 us. */ 788 for (i = 0; i < 10; i++) { 789 delay(10); 790 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 791 if (!hcr) 792 break; 793 } 794 if (hcr) { 795 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 796 err = USBD_IOERROR; 797 goto bad5; 798 } 799 #ifdef OHCI_DEBUG 800 if (ohcidebug > 15) 801 ohci_dumpregs(sc); 802 #endif 803 804 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 805 806 /* Set up HC registers. */ 807 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 808 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 809 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 810 /* disable all interrupts and then switch on all desired interrupts */ 811 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 812 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 813 /* switch on desired functional features */ 814 ctl = OREAD4(sc, OHCI_CONTROL); 815 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 816 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 817 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 818 /* And finally start it! */ 819 OWRITE4(sc, OHCI_CONTROL, ctl); 820 821 /* 822 * The controller is now OPERATIONAL. Set a some final 823 * registers that should be set earlier, but that the 824 * controller ignores when in the SUSPEND state. 825 */ 826 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 827 fm |= OHCI_FSMPS(ival) | ival; 828 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 829 per = OHCI_PERIODIC(ival); /* 90% periodic */ 830 OWRITE4(sc, OHCI_PERIODIC_START, per); 831 832 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 833 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 834 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 835 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 836 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 837 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 838 839 /* 840 * The AMD756 requires a delay before re-reading the register, 841 * otherwise it will occasionally report 0 ports. 842 */ 843 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 844 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 845 846 #ifdef OHCI_DEBUG 847 if (ohcidebug > 5) 848 ohci_dumpregs(sc); 849 #endif 850 851 /* Set up the bus struct. */ 852 sc->sc_bus.methods = &ohci_bus_methods; 853 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 854 855 #if defined(__NetBSD__) || defined(__OpenBSD__) 856 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 857 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 858 #endif 859 860 return (USBD_NORMAL_COMPLETION); 861 862 bad5: 863 for (i = 0; i < OHCI_NO_EDS; i++) 864 ohci_free_sed(sc, sc->sc_eds[i]); 865 bad4: 866 ohci_free_sed(sc, sc->sc_isoc_head); 867 bad3: 868 ohci_free_sed(sc, sc->sc_ctrl_head); 869 bad2: 870 ohci_free_sed(sc, sc->sc_bulk_head); 871 bad1: 872 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 873 return (err); 874 } 875 876 usbd_status 877 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 878 { 879 #if defined(__NetBSD__) || defined(__OpenBSD__) 880 struct ohci_softc *sc = (struct ohci_softc *)bus; 881 #endif 882 883 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 884 } 885 886 void 887 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 888 { 889 #if defined(__NetBSD__) || defined(__OpenBSD__) 890 struct ohci_softc *sc = (struct ohci_softc *)bus; 891 #endif 892 893 usb_freemem(&sc->sc_bus, dma); 894 } 895 896 usbd_xfer_handle 897 ohci_allocx(struct usbd_bus *bus) 898 { 899 struct ohci_softc *sc = (struct ohci_softc *)bus; 900 usbd_xfer_handle xfer; 901 902 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 903 if (xfer != NULL) 904 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 905 else 906 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 907 if (xfer != NULL) 908 memset(xfer, 0, sizeof *xfer); 909 return (xfer); 910 } 911 912 void 913 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 914 { 915 struct ohci_softc *sc = (struct ohci_softc *)bus; 916 917 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 918 } 919 920 /* 921 * Shut down the controller when the system is going down. 922 */ 923 void 924 ohci_shutdown(void *v) 925 { 926 ohci_softc_t *sc = v; 927 928 DPRINTF(("ohci_shutdown: stopping the HC\n")); 929 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 930 } 931 932 /* 933 * Handle suspend/resume. 934 * 935 * We need to switch to polling mode here, because this routine is 936 * called from an intterupt context. This is all right since we 937 * are almost suspended anyway. 938 */ 939 void 940 ohci_power(int why, void *v) 941 { 942 ohci_softc_t *sc = v; 943 u_int32_t ctl; 944 int s; 945 946 #ifdef OHCI_DEBUG 947 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 948 ohci_dumpregs(sc); 949 #endif 950 951 s = splhardusb(); 952 switch (why) { 953 case PWR_SUSPEND: 954 case PWR_STANDBY: 955 sc->sc_bus.use_polling++; 956 ctl = OREAD4(sc, OHCI_CONTROL); 957 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_SUSPEND; 958 OWRITE4(sc, OHCI_CONTROL, ctl); 959 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 960 sc->sc_bus.use_polling--; 961 break; 962 case PWR_RESUME: 963 sc->sc_bus.use_polling++; 964 ctl = OREAD4(sc, OHCI_CONTROL); 965 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_RESUME; 966 OWRITE4(sc, OHCI_CONTROL, ctl); 967 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 968 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL; 969 OWRITE4(sc, OHCI_CONTROL, ctl); 970 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 971 sc->sc_bus.use_polling--; 972 break; 973 case PWR_SOFTSUSPEND: 974 case PWR_SOFTSTANDBY: 975 case PWR_SOFTRESUME: 976 break; 977 } 978 splx(s); 979 } 980 981 #ifdef OHCI_DEBUG 982 void 983 ohci_dumpregs(ohci_softc_t *sc) 984 { 985 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 986 OREAD4(sc, OHCI_REVISION), 987 OREAD4(sc, OHCI_CONTROL), 988 OREAD4(sc, OHCI_COMMAND_STATUS))); 989 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 990 OREAD4(sc, OHCI_INTERRUPT_STATUS), 991 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 992 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 993 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 994 OREAD4(sc, OHCI_HCCA), 995 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 996 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 997 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 998 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 999 OREAD4(sc, OHCI_BULK_HEAD_ED), 1000 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1001 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1002 OREAD4(sc, OHCI_DONE_HEAD), 1003 OREAD4(sc, OHCI_FM_INTERVAL), 1004 OREAD4(sc, OHCI_FM_REMAINING))); 1005 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1006 OREAD4(sc, OHCI_FM_NUMBER), 1007 OREAD4(sc, OHCI_PERIODIC_START), 1008 OREAD4(sc, OHCI_LS_THRESHOLD))); 1009 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1010 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1011 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1012 OREAD4(sc, OHCI_RH_STATUS))); 1013 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1014 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1015 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1016 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1017 le32toh(sc->sc_hcca->hcca_frame_number), 1018 le32toh(sc->sc_hcca->hcca_done_head))); 1019 } 1020 #endif 1021 1022 Static int ohci_intr1(ohci_softc_t *); 1023 1024 int 1025 ohci_intr(void *p) 1026 { 1027 ohci_softc_t *sc = p; 1028 1029 /* If we get an interrupt while polling, then just ignore it. */ 1030 if (sc->sc_bus.use_polling) { 1031 #ifdef DIAGNOSTIC 1032 printf("ohci_intr: ignored interrupt while polling\n"); 1033 #endif 1034 return (0); 1035 } 1036 1037 return (ohci_intr1(sc)); 1038 } 1039 1040 Static int 1041 ohci_intr1(ohci_softc_t *sc) 1042 { 1043 u_int32_t intrs, eintrs; 1044 ohci_physaddr_t done; 1045 1046 /* In case the interrupt occurs before initialization has completed. */ 1047 if (sc == NULL || sc->sc_hcca == NULL) { 1048 #ifdef DIAGNOSTIC 1049 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1050 #endif 1051 return (0); 1052 } 1053 1054 intrs = 0; 1055 done = le32toh(sc->sc_hcca->hcca_done_head); 1056 if (done != 0) { 1057 if (done & ~OHCI_DONE_INTRS) 1058 intrs = OHCI_WDH; 1059 if (done & OHCI_DONE_INTRS) 1060 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 1061 } else 1062 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1063 1064 if (!intrs) 1065 return (0); 1066 1067 intrs &= ~OHCI_MIE; 1068 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1069 eintrs = intrs & sc->sc_eintrs; 1070 if (!eintrs) 1071 return (0); 1072 1073 sc->sc_bus.intr_context++; 1074 sc->sc_bus.no_intrs++; 1075 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1076 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1077 (u_int)eintrs)); 1078 1079 if (eintrs & OHCI_SO) { 1080 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1081 /* XXX do what */ 1082 intrs &= ~OHCI_SO; 1083 } 1084 if (eintrs & OHCI_WDH) { 1085 ohci_add_done(sc, done &~ OHCI_DONE_INTRS); 1086 sc->sc_hcca->hcca_done_head = 0; 1087 usb_schedsoftintr(&sc->sc_bus); 1088 intrs &= ~OHCI_WDH; 1089 } 1090 if (eintrs & OHCI_RD) { 1091 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1092 /* XXX process resume detect */ 1093 } 1094 if (eintrs & OHCI_UE) { 1095 printf("%s: unrecoverable error, controller halted\n", 1096 USBDEVNAME(sc->sc_bus.bdev)); 1097 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1098 /* XXX what else */ 1099 } 1100 if (eintrs & OHCI_RHSC) { 1101 ohci_rhsc(sc, sc->sc_intrxfer); 1102 intrs &= ~OHCI_RHSC; 1103 1104 /* 1105 * Disable RHSC interrupt for now, because it will be 1106 * on until the port has been reset. 1107 */ 1108 ohci_rhsc_able(sc, 0); 1109 } 1110 1111 sc->sc_bus.intr_context--; 1112 1113 /* Block unprocessed interrupts. XXX */ 1114 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1115 sc->sc_eintrs &= ~intrs; 1116 1117 return (1); 1118 } 1119 1120 void 1121 ohci_rhsc_able(ohci_softc_t *sc, int on) 1122 { 1123 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1124 if (on) { 1125 sc->sc_eintrs |= OHCI_RHSC; 1126 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1127 } else { 1128 sc->sc_eintrs &= ~OHCI_RHSC; 1129 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1130 } 1131 } 1132 1133 #ifdef OHCI_DEBUG 1134 char *ohci_cc_strs[] = { 1135 "NO_ERROR", 1136 "CRC", 1137 "BIT_STUFFING", 1138 "DATA_TOGGLE_MISMATCH", 1139 "STALL", 1140 "DEVICE_NOT_RESPONDING", 1141 "PID_CHECK_FAILURE", 1142 "UNEXPECTED_PID", 1143 "DATA_OVERRUN", 1144 "DATA_UNDERRUN", 1145 "BUFFER_OVERRUN", 1146 "BUFFER_UNDERRUN", 1147 "reserved", 1148 "reserved", 1149 "NOT_ACCESSED", 1150 "NOT_ACCESSED", 1151 }; 1152 #endif 1153 1154 void 1155 ohci_add_done(ohci_softc_t *sc, 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 1192 ohci_softintr(struct usbd_bus *bus) 1193 { 1194 ohci_softc_t *sc = (ohci_softc_t *)bus; 1195 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1196 ohci_soft_td_t *std, *sdone, *stdnext; 1197 usbd_xfer_handle xfer; 1198 int len, cc, s; 1199 1200 sc->sc_bus.intr_context++; 1201 1202 s = splhardusb(); 1203 sdone = sc->sc_sdone; 1204 sc->sc_sdone = NULL; 1205 sidone = sc->sc_sidone; 1206 sc->sc_sidone = NULL; 1207 splx(s); 1208 1209 DPRINTFN(10,("ohci_process_done: sdone=%p sidone=%p\n", sdone, sidone)); 1210 1211 #ifdef OHCI_DEBUG 1212 if (ohcidebug > 10) { 1213 DPRINTF(("ohci_process_done: TD done:\n")); 1214 ohci_dump_tds(sdone); 1215 } 1216 #endif 1217 1218 for (std = sdone; std; std = stdnext) { 1219 xfer = std->xfer; 1220 stdnext = std->dnext; 1221 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1222 std, xfer, xfer ? xfer->hcpriv : 0)); 1223 if (xfer == NULL) { 1224 /* xfer == NULL: There seems to be no xfer associated 1225 * with this TD. It is tailp that happened to end up on 1226 * the done queue. 1227 */ 1228 continue; 1229 } 1230 if (xfer->status == USBD_CANCELLED || 1231 xfer->status == USBD_TIMEOUT) { 1232 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1233 xfer)); 1234 /* Handled by abort routine. */ 1235 continue; 1236 } 1237 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1238 cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags)); 1239 if (cc == OHCI_CC_NO_ERROR) { 1240 len = std->len; 1241 if (std->td.td_cbp != 0) 1242 len -= le32toh(std->td.td_be) - 1243 le32toh(std->td.td_cbp) + 1; 1244 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", 1245 len, std->flags)); 1246 if (std->flags & OHCI_ADD_LEN) 1247 xfer->actlen += len; 1248 if (std->flags & OHCI_CALL_DONE) { 1249 xfer->status = USBD_NORMAL_COMPLETION; 1250 usb_transfer_complete(xfer); 1251 } 1252 ohci_free_std(sc, std); 1253 } else { 1254 /* 1255 * Endpoint is halted. First unlink all the TDs 1256 * belonging to the failed transfer, and then restart 1257 * the endpoint. 1258 */ 1259 ohci_soft_td_t *p, *n; 1260 struct ohci_pipe *opipe = 1261 (struct ohci_pipe *)xfer->pipe; 1262 1263 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1264 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1265 ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))])); 1266 1267 /* remove TDs */ 1268 for (p = std; p->xfer == xfer; p = n) { 1269 n = p->nexttd; 1270 ohci_free_std(sc, p); 1271 } 1272 1273 /* clear halt */ 1274 opipe->sed->ed.ed_headp = htole32(p->physaddr); 1275 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1276 1277 if (cc == OHCI_CC_STALL) 1278 xfer->status = USBD_STALLED; 1279 else 1280 xfer->status = USBD_IOERROR; 1281 usb_transfer_complete(xfer); 1282 } 1283 } 1284 1285 #ifdef OHCI_DEBUG 1286 if (ohcidebug > 10) { 1287 DPRINTF(("ohci_process_done: ITD done:\n")); 1288 ohci_dump_itds(sidone); 1289 } 1290 #endif 1291 1292 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1293 xfer = sitd->xfer; 1294 sitdnext = sitd->dnext; 1295 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1296 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1297 if (xfer == NULL) 1298 continue; 1299 if (xfer->status == USBD_CANCELLED || 1300 xfer->status == USBD_TIMEOUT) { 1301 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1302 xfer)); 1303 /* Handled by abort routine. */ 1304 continue; 1305 } 1306 #ifdef DIAGNOSTIC 1307 if (sitd->isdone) 1308 printf("ohci_softintr: sitd=%p is done\n", sitd); 1309 sitd->isdone = 1; 1310 #endif 1311 cc = OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)); 1312 if (cc == OHCI_CC_NO_ERROR) { 1313 /* XXX compute length for input */ 1314 struct ohci_pipe *opipe = 1315 (struct ohci_pipe *)xfer->pipe; 1316 if (sitd->flags & OHCI_CALL_DONE) { 1317 opipe->u.iso.inuse -= xfer->nframes; 1318 /* XXX update frlengths with actual length */ 1319 /* XXX xfer->actlen = actlen; */ 1320 xfer->status = USBD_NORMAL_COMPLETION; 1321 usb_transfer_complete(xfer); 1322 } 1323 } else { 1324 /* XXX Do more */ 1325 xfer->status = USBD_IOERROR; 1326 usb_transfer_complete(xfer); 1327 } 1328 } 1329 1330 sc->sc_bus.intr_context--; 1331 } 1332 1333 void 1334 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1335 { 1336 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1337 1338 #ifdef DIAGNOSTIC 1339 if (!(xfer->rqflags & URQ_REQUEST)) { 1340 panic("ohci_ctrl_done: not a request\n"); 1341 } 1342 #endif 1343 xfer->hcpriv = NULL; 1344 } 1345 1346 void 1347 ohci_device_intr_done(usbd_xfer_handle xfer) 1348 { 1349 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1350 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1351 ohci_soft_ed_t *sed = opipe->sed; 1352 ohci_soft_td_t *data, *tail; 1353 1354 1355 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1356 xfer, xfer->actlen)); 1357 1358 xfer->hcpriv = NULL; 1359 1360 if (xfer->pipe->repeat) { 1361 data = opipe->tail.td; 1362 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1363 if (tail == NULL) { 1364 xfer->status = USBD_NOMEM; 1365 return; 1366 } 1367 tail->xfer = NULL; 1368 1369 data->td.td_flags = htole32( 1370 OHCI_TD_IN | OHCI_TD_NOCC | 1371 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1372 if (xfer->flags & USBD_SHORT_XFER_OK) 1373 data->td.td_flags |= htole32(OHCI_TD_R); 1374 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 1375 data->nexttd = tail; 1376 data->td.td_nexttd = htole32(tail->physaddr); 1377 data->td.td_be = htole32(le32toh(data->td.td_cbp) + 1378 xfer->length - 1); 1379 data->len = xfer->length; 1380 data->xfer = xfer; 1381 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1382 xfer->hcpriv = data; 1383 xfer->actlen = 0; 1384 1385 sed->ed.ed_tailp = htole32(tail->physaddr); 1386 opipe->tail.td = tail; 1387 } 1388 } 1389 1390 void 1391 ohci_device_bulk_done(usbd_xfer_handle xfer) 1392 { 1393 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1394 xfer, xfer->actlen)); 1395 1396 xfer->hcpriv = NULL; 1397 } 1398 1399 void 1400 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1401 { 1402 usbd_pipe_handle pipe; 1403 struct ohci_pipe *opipe; 1404 u_char *p; 1405 int i, m; 1406 int hstatus; 1407 1408 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1409 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1410 sc, xfer, hstatus)); 1411 1412 if (xfer == NULL) { 1413 /* Just ignore the change. */ 1414 return; 1415 } 1416 1417 pipe = xfer->pipe; 1418 opipe = (struct ohci_pipe *)pipe; 1419 1420 p = KERNADDR(&xfer->dmabuf); 1421 m = min(sc->sc_noport, xfer->length * 8 - 1); 1422 memset(p, 0, xfer->length); 1423 for (i = 1; i <= m; i++) { 1424 /* Pick out CHANGE bits from the status reg. */ 1425 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1426 p[i/8] |= 1 << (i%8); 1427 } 1428 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1429 xfer->actlen = xfer->length; 1430 xfer->status = USBD_NORMAL_COMPLETION; 1431 1432 usb_transfer_complete(xfer); 1433 } 1434 1435 void 1436 ohci_root_intr_done(usbd_xfer_handle xfer) 1437 { 1438 xfer->hcpriv = NULL; 1439 } 1440 1441 void 1442 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1443 { 1444 xfer->hcpriv = NULL; 1445 } 1446 1447 /* 1448 * Wait here until controller claims to have an interrupt. 1449 * Then call ohci_intr and return. Use timeout to avoid waiting 1450 * too long. 1451 */ 1452 void 1453 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1454 { 1455 int timo = xfer->timeout; 1456 int usecs; 1457 u_int32_t intrs; 1458 1459 xfer->status = USBD_IN_PROGRESS; 1460 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1461 usb_delay_ms(&sc->sc_bus, 1); 1462 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1463 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1464 #ifdef OHCI_DEBUG 1465 if (ohcidebug > 15) 1466 ohci_dumpregs(sc); 1467 #endif 1468 if (intrs) { 1469 ohci_intr1(sc); 1470 if (xfer->status != USBD_IN_PROGRESS) 1471 return; 1472 } 1473 } 1474 1475 /* Timeout */ 1476 DPRINTF(("ohci_waitintr: timeout\n")); 1477 xfer->status = USBD_TIMEOUT; 1478 usb_transfer_complete(xfer); 1479 /* XXX should free TD */ 1480 } 1481 1482 void 1483 ohci_poll(struct usbd_bus *bus) 1484 { 1485 ohci_softc_t *sc = (ohci_softc_t *)bus; 1486 1487 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1488 ohci_intr1(sc); 1489 } 1490 1491 usbd_status 1492 ohci_device_request(usbd_xfer_handle xfer) 1493 { 1494 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1495 usb_device_request_t *req = &xfer->request; 1496 usbd_device_handle dev = opipe->pipe.device; 1497 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1498 int addr = dev->address; 1499 ohci_soft_td_t *setup, *stat, *next, *tail; 1500 ohci_soft_ed_t *sed; 1501 int isread; 1502 int len; 1503 usbd_status err; 1504 int s; 1505 1506 isread = req->bmRequestType & UT_READ; 1507 len = UGETW(req->wLength); 1508 1509 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1510 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1511 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1512 UGETW(req->wIndex), len, addr, 1513 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1514 1515 setup = opipe->tail.td; 1516 stat = ohci_alloc_std(sc); 1517 if (stat == NULL) { 1518 err = USBD_NOMEM; 1519 goto bad1; 1520 } 1521 tail = ohci_alloc_std(sc); 1522 if (tail == NULL) { 1523 err = USBD_NOMEM; 1524 goto bad2; 1525 } 1526 tail->xfer = NULL; 1527 1528 sed = opipe->sed; 1529 opipe->u.ctl.length = len; 1530 1531 /* Update device address and length since they may have changed. */ 1532 /* XXX This only needs to be done once, but it's too early in open. */ 1533 /* XXXX Should not touch ED here! */ 1534 sed->ed.ed_flags = htole32( 1535 (le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1536 OHCI_ED_SET_FA(addr) | 1537 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1538 1539 next = stat; 1540 1541 /* Set up data transaction */ 1542 if (len != 0) { 1543 ohci_soft_td_t *std = stat; 1544 1545 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1546 std, &stat); 1547 stat = stat->nexttd; /* point at free TD */ 1548 if (err) 1549 goto bad3; 1550 /* Start toggle at 1 and then use the carried toggle. */ 1551 std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK); 1552 std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1); 1553 } 1554 1555 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1556 1557 setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1558 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1559 setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma)); 1560 setup->nexttd = next; 1561 setup->td.td_nexttd = htole32(next->physaddr); 1562 setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1); 1563 setup->len = 0; 1564 setup->xfer = xfer; 1565 setup->flags = 0; 1566 xfer->hcpriv = setup; 1567 1568 stat->td.td_flags = htole32( 1569 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1570 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1571 stat->td.td_cbp = 0; 1572 stat->nexttd = tail; 1573 stat->td.td_nexttd = htole32(tail->physaddr); 1574 stat->td.td_be = 0; 1575 stat->flags = OHCI_CALL_DONE; 1576 stat->len = 0; 1577 stat->xfer = xfer; 1578 1579 #ifdef OHCI_DEBUG 1580 if (ohcidebug > 5) { 1581 DPRINTF(("ohci_device_request:\n")); 1582 ohci_dump_ed(sed); 1583 ohci_dump_tds(setup); 1584 } 1585 #endif 1586 1587 /* Insert ED in schedule */ 1588 s = splusb(); 1589 sed->ed.ed_tailp = htole32(tail->physaddr); 1590 opipe->tail.td = tail; 1591 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1592 if (xfer->timeout && !sc->sc_bus.use_polling) { 1593 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1594 ohci_timeout, xfer); 1595 } 1596 splx(s); 1597 1598 #if 0 1599 if (ohcidebug > 10) { 1600 delay(10000); 1601 DPRINTF(("ohci_device_request: status=%x\n", 1602 OREAD4(sc, OHCI_COMMAND_STATUS))); 1603 ohci_dump_ed(sed); 1604 ohci_dump_tds(setup); 1605 } 1606 #endif 1607 1608 return (USBD_NORMAL_COMPLETION); 1609 1610 bad3: 1611 ohci_free_std(sc, tail); 1612 bad2: 1613 ohci_free_std(sc, stat); 1614 bad1: 1615 return (err); 1616 } 1617 1618 /* 1619 * Add an ED to the schedule. Called at splusb(). 1620 */ 1621 void 1622 ohci_add_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1623 { 1624 SPLUSBCHECK; 1625 sed->next = head->next; 1626 sed->ed.ed_nexted = head->ed.ed_nexted; 1627 head->next = sed; 1628 head->ed.ed_nexted = htole32(sed->physaddr); 1629 } 1630 1631 /* 1632 * Remove an ED from the schedule. Called at splusb(). 1633 */ 1634 void 1635 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1636 { 1637 ohci_soft_ed_t *p; 1638 1639 SPLUSBCHECK; 1640 1641 /* XXX */ 1642 for (p = head; p == NULL && p->next != sed; p = p->next) 1643 ; 1644 if (p == NULL) 1645 panic("ohci_rem_ed: ED not found\n"); 1646 p->next = sed->next; 1647 p->ed.ed_nexted = sed->ed.ed_nexted; 1648 } 1649 1650 /* 1651 * When a transfer is completed the TD is added to the done queue by 1652 * the host controller. This queue is the processed by software. 1653 * Unfortunately the queue contains the physical address of the TD 1654 * and we have no simple way to translate this back to a kernel address. 1655 * To make the translation possible (and fast) we use a hash table of 1656 * TDs currently in the schedule. The physical address is used as the 1657 * hash value. 1658 */ 1659 1660 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1661 /* Called at splusb() */ 1662 void 1663 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1664 { 1665 int h = HASH(std->physaddr); 1666 1667 SPLUSBCHECK; 1668 1669 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1670 } 1671 1672 /* Called at splusb() */ 1673 void 1674 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1675 { 1676 SPLUSBCHECK; 1677 1678 LIST_REMOVE(std, hnext); 1679 } 1680 1681 ohci_soft_td_t * 1682 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1683 { 1684 int h = HASH(a); 1685 ohci_soft_td_t *std; 1686 1687 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1688 std != NULL; 1689 std = LIST_NEXT(std, hnext)) 1690 if (std->physaddr == a) 1691 return (std); 1692 return (NULL); 1693 } 1694 1695 /* Called at splusb() */ 1696 void 1697 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1698 { 1699 int h = HASH(sitd->physaddr); 1700 1701 SPLUSBCHECK; 1702 1703 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1704 sitd, (u_long)sitd->physaddr)); 1705 1706 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1707 } 1708 1709 /* Called at splusb() */ 1710 void 1711 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1712 { 1713 SPLUSBCHECK; 1714 1715 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1716 sitd, (u_long)sitd->physaddr)); 1717 1718 LIST_REMOVE(sitd, hnext); 1719 } 1720 1721 ohci_soft_itd_t * 1722 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1723 { 1724 int h = HASH(a); 1725 ohci_soft_itd_t *sitd; 1726 1727 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1728 sitd != NULL; 1729 sitd = LIST_NEXT(sitd, hnext)) 1730 if (sitd->physaddr == a) 1731 return (sitd); 1732 return (NULL); 1733 } 1734 1735 void 1736 ohci_timeout(void *addr) 1737 { 1738 usbd_xfer_handle xfer = addr; 1739 int s; 1740 1741 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1742 1743 s = splusb(); 1744 xfer->device->bus->intr_context++; 1745 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1746 xfer->device->bus->intr_context--; 1747 splx(s); 1748 } 1749 1750 #ifdef OHCI_DEBUG 1751 void 1752 ohci_dump_tds(ohci_soft_td_t *std) 1753 { 1754 for (; std; std = std->nexttd) 1755 ohci_dump_td(std); 1756 } 1757 1758 void 1759 ohci_dump_td(ohci_soft_td_t *std) 1760 { 1761 char sbuf[128]; 1762 1763 bitmask_snprintf((int)le32toh(std->td.td_flags), 1764 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1765 sbuf, sizeof(sbuf)); 1766 1767 DPRINTF(("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1768 "nexttd=0x%08lx be=0x%08lx\n", 1769 std, (u_long)std->physaddr, sbuf, 1770 OHCI_TD_GET_DI(le32toh(std->td.td_flags)), 1771 OHCI_TD_GET_EC(le32toh(std->td.td_flags)), 1772 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1773 (u_long)le32toh(std->td.td_cbp), 1774 (u_long)le32toh(std->td.td_nexttd), 1775 (u_long)le32toh(std->td.td_be))); 1776 } 1777 1778 void 1779 ohci_dump_itd(ohci_soft_itd_t *sitd) 1780 { 1781 int i; 1782 1783 DPRINTF(("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1784 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1785 sitd, (u_long)sitd->physaddr, 1786 OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)), 1787 OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)), 1788 OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)), 1789 OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)), 1790 (u_long)le32toh(sitd->itd.itd_bp0), 1791 (u_long)le32toh(sitd->itd.itd_nextitd), 1792 (u_long)le32toh(sitd->itd.itd_be))); 1793 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1794 DPRINTF(("offs[%d]=0x%04x ", i, 1795 (u_int)le16toh(sitd->itd.itd_offset[i]))); 1796 DPRINTF(("\n")); 1797 } 1798 1799 void 1800 ohci_dump_itds(ohci_soft_itd_t *sitd) 1801 { 1802 for (; sitd; sitd = sitd->nextitd) 1803 ohci_dump_itd(sitd); 1804 } 1805 1806 void 1807 ohci_dump_ed(ohci_soft_ed_t *sed) 1808 { 1809 char sbuf[128], sbuf2[128]; 1810 1811 bitmask_snprintf((int)le32toh(sed->ed.ed_flags), 1812 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1813 sbuf, sizeof(sbuf)); 1814 bitmask_snprintf((u_long)le32toh(sed->ed.ed_headp), 1815 "\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2)); 1816 1817 DPRINTF(("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d %s\ntailp=0x%08lx " 1818 "headflags=%s headp=0x%08lx nexted=0x%08lx\n", 1819 sed, (u_long)sed->physaddr, 1820 OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)), 1821 OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)), 1822 OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), sbuf, 1823 (u_long)le32toh(sed->ed.ed_tailp), sbuf2, 1824 (u_long)le32toh(sed->ed.ed_headp), 1825 (u_long)le32toh(sed->ed.ed_nexted))); 1826 } 1827 #endif 1828 1829 usbd_status 1830 ohci_open(usbd_pipe_handle pipe) 1831 { 1832 usbd_device_handle dev = pipe->device; 1833 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1834 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1835 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1836 u_int8_t addr = dev->address; 1837 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1838 ohci_soft_ed_t *sed; 1839 ohci_soft_td_t *std; 1840 ohci_soft_itd_t *sitd; 1841 ohci_physaddr_t tdphys; 1842 u_int32_t fmt; 1843 usbd_status err; 1844 int s; 1845 int ival; 1846 1847 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1848 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1849 1850 std = NULL; 1851 sed = NULL; 1852 1853 if (addr == sc->sc_addr) { 1854 switch (ed->bEndpointAddress) { 1855 case USB_CONTROL_ENDPOINT: 1856 pipe->methods = &ohci_root_ctrl_methods; 1857 break; 1858 case UE_DIR_IN | OHCI_INTR_ENDPT: 1859 pipe->methods = &ohci_root_intr_methods; 1860 break; 1861 default: 1862 return (USBD_INVAL); 1863 } 1864 } else { 1865 sed = ohci_alloc_sed(sc); 1866 if (sed == NULL) 1867 goto bad0; 1868 opipe->sed = sed; 1869 if (xfertype == UE_ISOCHRONOUS) { 1870 sitd = ohci_alloc_sitd(sc); 1871 if (sitd == NULL) { 1872 ohci_free_sitd(sc, sitd); 1873 goto bad1; 1874 } 1875 opipe->tail.itd = sitd; 1876 tdphys = sitd->physaddr; 1877 fmt = OHCI_ED_FORMAT_ISO; 1878 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 1879 fmt |= OHCI_ED_DIR_IN; 1880 else 1881 fmt |= OHCI_ED_DIR_OUT; 1882 } else { 1883 std = ohci_alloc_std(sc); 1884 if (std == NULL) { 1885 ohci_free_std(sc, std); 1886 goto bad1; 1887 } 1888 opipe->tail.td = std; 1889 tdphys = std->physaddr; 1890 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 1891 } 1892 sed->ed.ed_flags = htole32( 1893 OHCI_ED_SET_FA(addr) | 1894 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1895 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1896 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1897 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 1898 1899 switch (xfertype) { 1900 case UE_CONTROL: 1901 pipe->methods = &ohci_device_ctrl_methods; 1902 err = usb_allocmem(&sc->sc_bus, 1903 sizeof(usb_device_request_t), 1904 0, &opipe->u.ctl.reqdma); 1905 if (err) 1906 goto bad; 1907 s = splusb(); 1908 ohci_add_ed(sed, sc->sc_ctrl_head); 1909 splx(s); 1910 break; 1911 case UE_INTERRUPT: 1912 pipe->methods = &ohci_device_intr_methods; 1913 ival = pipe->interval; 1914 if (ival == USBD_DEFAULT_INTERVAL) 1915 ival = ed->bInterval; 1916 return (ohci_device_setintr(sc, opipe, ival)); 1917 case UE_ISOCHRONOUS: 1918 pipe->methods = &ohci_device_isoc_methods; 1919 return (ohci_setup_isoc(pipe)); 1920 case UE_BULK: 1921 pipe->methods = &ohci_device_bulk_methods; 1922 s = splusb(); 1923 ohci_add_ed(sed, sc->sc_bulk_head); 1924 splx(s); 1925 break; 1926 } 1927 } 1928 return (USBD_NORMAL_COMPLETION); 1929 1930 bad: 1931 if (std != NULL) 1932 ohci_free_std(sc, std); 1933 bad1: 1934 if (sed != NULL) 1935 ohci_free_sed(sc, sed); 1936 bad0: 1937 return (USBD_NOMEM); 1938 1939 } 1940 1941 /* 1942 * Close a reqular pipe. 1943 * Assumes that there are no pending transactions. 1944 */ 1945 void 1946 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 1947 { 1948 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1949 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1950 ohci_soft_ed_t *sed = opipe->sed; 1951 int s; 1952 1953 s = splusb(); 1954 #ifdef DIAGNOSTIC 1955 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 1956 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1957 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) { 1958 ohci_physaddr_t td = le32toh(sed->ed.ed_headp); 1959 ohci_soft_td_t *std; 1960 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1961 std != NULL; 1962 std = LIST_NEXT(std, hnext)) 1963 if (std->physaddr == td) 1964 break; 1965 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1966 "tl=0x%x pipe=%p, std=%p\n", sed, 1967 (int)le32toh(sed->ed.ed_headp), 1968 (int)le32toh(sed->ed.ed_tailp), 1969 pipe, std); 1970 usb_delay_ms(&sc->sc_bus, 2); 1971 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1972 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 1973 printf("ohci_close_pipe: pipe still not empty\n"); 1974 } 1975 #endif 1976 ohci_rem_ed(sed, head); 1977 splx(s); 1978 ohci_free_sed(sc, opipe->sed); 1979 } 1980 1981 /* 1982 * Abort a device request. 1983 * If this routine is called at splusb() it guarantees that the request 1984 * will be removed from the hardware scheduling and that the callback 1985 * for it will be called with USBD_CANCELLED status. 1986 * It's impossible to guarantee that the requested transfer will not 1987 * have happened since the hardware runs concurrently. 1988 * If the transaction has already happened we rely on the ordinary 1989 * interrupt processing to process it. 1990 */ 1991 void 1992 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1993 { 1994 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1995 ohci_soft_ed_t *sed; 1996 1997 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1998 1999 xfer->status = status; 2000 2001 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2002 2003 sed = opipe->sed; 2004 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2005 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 2006 2007 #if 1 2008 if (xfer->device->bus->intr_context) { 2009 /* We have no process context, so we can't use tsleep(). */ 2010 usb_callout(xfer->pipe->abort_handle, 2011 hz / USB_FRAMES_PER_SECOND, ohci_abort_xfer_end, xfer); 2012 } else { 2013 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 2014 KASSERT(intr_nesting_level == 0, 2015 ("ohci_abort_req in interrupt context")); 2016 #endif 2017 usb_delay_ms(opipe->pipe.device->bus, 1); 2018 ohci_abort_xfer_end(xfer); 2019 } 2020 #else 2021 delay(1000); 2022 ohci_abort_xfer_end(xfer); 2023 #endif 2024 } 2025 2026 void 2027 ohci_abort_xfer_end(void *v) 2028 { 2029 usbd_xfer_handle xfer = v; 2030 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2031 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2032 ohci_soft_ed_t *sed; 2033 ohci_soft_td_t *p, *n; 2034 int s; 2035 2036 s = splusb(); 2037 2038 p = xfer->hcpriv; 2039 #ifdef DIAGNOSTIC 2040 if (p == NULL) { 2041 printf("ohci_abort_xfer: hcpriv==0\n"); 2042 return; 2043 } 2044 #endif 2045 for (; p->xfer == xfer; p = n) { 2046 n = p->nexttd; 2047 ohci_free_std(sc, p); 2048 } 2049 2050 sed = opipe->sed; 2051 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 2052 (int)p->physaddr, (int)le32toh(sed->ed.ed_tailp))); 2053 sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */ 2054 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 2055 2056 usb_transfer_complete(xfer); 2057 2058 splx(s); 2059 } 2060 2061 /* 2062 * Data structures and routines to emulate the root hub. 2063 */ 2064 Static usb_device_descriptor_t ohci_devd = { 2065 USB_DEVICE_DESCRIPTOR_SIZE, 2066 UDESC_DEVICE, /* type */ 2067 {0x00, 0x01}, /* USB version */ 2068 UDCLASS_HUB, /* class */ 2069 UDSUBCLASS_HUB, /* subclass */ 2070 0, /* protocol */ 2071 64, /* max packet */ 2072 {0},{0},{0x00,0x01}, /* device id */ 2073 1,2,0, /* string indicies */ 2074 1 /* # of configurations */ 2075 }; 2076 2077 Static usb_config_descriptor_t ohci_confd = { 2078 USB_CONFIG_DESCRIPTOR_SIZE, 2079 UDESC_CONFIG, 2080 {USB_CONFIG_DESCRIPTOR_SIZE + 2081 USB_INTERFACE_DESCRIPTOR_SIZE + 2082 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2083 1, 2084 1, 2085 0, 2086 UC_SELF_POWERED, 2087 0 /* max power */ 2088 }; 2089 2090 Static usb_interface_descriptor_t ohci_ifcd = { 2091 USB_INTERFACE_DESCRIPTOR_SIZE, 2092 UDESC_INTERFACE, 2093 0, 2094 0, 2095 1, 2096 UICLASS_HUB, 2097 UISUBCLASS_HUB, 2098 0, 2099 0 2100 }; 2101 2102 Static usb_endpoint_descriptor_t ohci_endpd = { 2103 USB_ENDPOINT_DESCRIPTOR_SIZE, 2104 UDESC_ENDPOINT, 2105 UE_DIR_IN | OHCI_INTR_ENDPT, 2106 UE_INTERRUPT, 2107 {8, 0}, /* max packet */ 2108 255 2109 }; 2110 2111 Static usb_hub_descriptor_t ohci_hubd = { 2112 USB_HUB_DESCRIPTOR_SIZE, 2113 UDESC_HUB, 2114 0, 2115 {0,0}, 2116 0, 2117 0, 2118 {0}, 2119 }; 2120 2121 Static int 2122 ohci_str(p, l, s) 2123 usb_string_descriptor_t *p; 2124 int l; 2125 char *s; 2126 { 2127 int i; 2128 2129 if (l == 0) 2130 return (0); 2131 p->bLength = 2 * strlen(s) + 2; 2132 if (l == 1) 2133 return (1); 2134 p->bDescriptorType = UDESC_STRING; 2135 l -= 2; 2136 for (i = 0; s[i] && l > 1; i++, l -= 2) 2137 USETW2(p->bString[i], 0, s[i]); 2138 return (2*i+2); 2139 } 2140 2141 /* 2142 * Simulate a hardware hub by handling all the necessary requests. 2143 */ 2144 Static usbd_status 2145 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2146 { 2147 usbd_status err; 2148 2149 /* Insert last in queue. */ 2150 err = usb_insert_transfer(xfer); 2151 if (err) 2152 return (err); 2153 2154 /* Pipe isn't running, start first */ 2155 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2156 } 2157 2158 Static usbd_status 2159 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2160 { 2161 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2162 usb_device_request_t *req; 2163 void *buf = NULL; 2164 int port, i; 2165 int s, len, value, index, l, totlen = 0; 2166 usb_port_status_t ps; 2167 usb_hub_descriptor_t hubd; 2168 usbd_status err; 2169 u_int32_t v; 2170 2171 if (sc->sc_dying) 2172 return (USBD_IOERROR); 2173 2174 #ifdef DIAGNOSTIC 2175 if (!(xfer->rqflags & URQ_REQUEST)) 2176 /* XXX panic */ 2177 return (USBD_INVAL); 2178 #endif 2179 req = &xfer->request; 2180 2181 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2182 req->bmRequestType, req->bRequest)); 2183 2184 len = UGETW(req->wLength); 2185 value = UGETW(req->wValue); 2186 index = UGETW(req->wIndex); 2187 2188 if (len != 0) 2189 buf = KERNADDR(&xfer->dmabuf); 2190 2191 #define C(x,y) ((x) | ((y) << 8)) 2192 switch(C(req->bRequest, req->bmRequestType)) { 2193 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2194 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2195 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2196 /* 2197 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2198 * for the integrated root hub. 2199 */ 2200 break; 2201 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2202 if (len > 0) { 2203 *(u_int8_t *)buf = sc->sc_conf; 2204 totlen = 1; 2205 } 2206 break; 2207 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2208 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2209 switch(value >> 8) { 2210 case UDESC_DEVICE: 2211 if ((value & 0xff) != 0) { 2212 err = USBD_IOERROR; 2213 goto ret; 2214 } 2215 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2216 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2217 memcpy(buf, &ohci_devd, l); 2218 break; 2219 case UDESC_CONFIG: 2220 if ((value & 0xff) != 0) { 2221 err = USBD_IOERROR; 2222 goto ret; 2223 } 2224 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2225 memcpy(buf, &ohci_confd, l); 2226 buf = (char *)buf + l; 2227 len -= l; 2228 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2229 totlen += l; 2230 memcpy(buf, &ohci_ifcd, l); 2231 buf = (char *)buf + l; 2232 len -= l; 2233 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2234 totlen += l; 2235 memcpy(buf, &ohci_endpd, l); 2236 break; 2237 case UDESC_STRING: 2238 if (len == 0) 2239 break; 2240 *(u_int8_t *)buf = 0; 2241 totlen = 1; 2242 switch (value & 0xff) { 2243 case 1: /* Vendor */ 2244 totlen = ohci_str(buf, len, sc->sc_vendor); 2245 break; 2246 case 2: /* Product */ 2247 totlen = ohci_str(buf, len, "OHCI root hub"); 2248 break; 2249 } 2250 break; 2251 default: 2252 err = USBD_IOERROR; 2253 goto ret; 2254 } 2255 break; 2256 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2257 if (len > 0) { 2258 *(u_int8_t *)buf = 0; 2259 totlen = 1; 2260 } 2261 break; 2262 case C(UR_GET_STATUS, UT_READ_DEVICE): 2263 if (len > 1) { 2264 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2265 totlen = 2; 2266 } 2267 break; 2268 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2269 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2270 if (len > 1) { 2271 USETW(((usb_status_t *)buf)->wStatus, 0); 2272 totlen = 2; 2273 } 2274 break; 2275 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2276 if (value >= USB_MAX_DEVICES) { 2277 err = USBD_IOERROR; 2278 goto ret; 2279 } 2280 sc->sc_addr = value; 2281 break; 2282 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2283 if (value != 0 && value != 1) { 2284 err = USBD_IOERROR; 2285 goto ret; 2286 } 2287 sc->sc_conf = value; 2288 break; 2289 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2290 break; 2291 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2292 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2293 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2294 err = USBD_IOERROR; 2295 goto ret; 2296 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2297 break; 2298 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2299 break; 2300 /* Hub requests */ 2301 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2302 break; 2303 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2304 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2305 "port=%d feature=%d\n", 2306 index, value)); 2307 if (index < 1 || index > sc->sc_noport) { 2308 err = USBD_IOERROR; 2309 goto ret; 2310 } 2311 port = OHCI_RH_PORT_STATUS(index); 2312 switch(value) { 2313 case UHF_PORT_ENABLE: 2314 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2315 break; 2316 case UHF_PORT_SUSPEND: 2317 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2318 break; 2319 case UHF_PORT_POWER: 2320 /* Yes, writing to the LOW_SPEED bit clears power. */ 2321 OWRITE4(sc, port, UPS_LOW_SPEED); 2322 break; 2323 case UHF_C_PORT_CONNECTION: 2324 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2325 break; 2326 case UHF_C_PORT_ENABLE: 2327 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2328 break; 2329 case UHF_C_PORT_SUSPEND: 2330 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2331 break; 2332 case UHF_C_PORT_OVER_CURRENT: 2333 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2334 break; 2335 case UHF_C_PORT_RESET: 2336 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2337 break; 2338 default: 2339 err = USBD_IOERROR; 2340 goto ret; 2341 } 2342 switch(value) { 2343 case UHF_C_PORT_CONNECTION: 2344 case UHF_C_PORT_ENABLE: 2345 case UHF_C_PORT_SUSPEND: 2346 case UHF_C_PORT_OVER_CURRENT: 2347 case UHF_C_PORT_RESET: 2348 /* Enable RHSC interrupt if condition is cleared. */ 2349 if ((OREAD4(sc, port) >> 16) == 0) 2350 ohci_rhsc_able(sc, 1); 2351 break; 2352 default: 2353 break; 2354 } 2355 break; 2356 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2357 if (value != 0) { 2358 err = USBD_IOERROR; 2359 goto ret; 2360 } 2361 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2362 hubd = ohci_hubd; 2363 hubd.bNbrPorts = sc->sc_noport; 2364 USETW(hubd.wHubCharacteristics, 2365 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2366 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2367 /* XXX overcurrent */ 2368 ); 2369 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2370 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2371 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2372 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2373 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2374 l = min(len, hubd.bDescLength); 2375 totlen = l; 2376 memcpy(buf, &hubd, l); 2377 break; 2378 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2379 if (len != 4) { 2380 err = USBD_IOERROR; 2381 goto ret; 2382 } 2383 memset(buf, 0, len); /* ? XXX */ 2384 totlen = len; 2385 break; 2386 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2387 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2388 index)); 2389 if (index < 1 || index > sc->sc_noport) { 2390 err = USBD_IOERROR; 2391 goto ret; 2392 } 2393 if (len != 4) { 2394 err = USBD_IOERROR; 2395 goto ret; 2396 } 2397 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2398 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2399 v)); 2400 USETW(ps.wPortStatus, v); 2401 USETW(ps.wPortChange, v >> 16); 2402 l = min(len, sizeof ps); 2403 memcpy(buf, &ps, l); 2404 totlen = l; 2405 break; 2406 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2407 err = USBD_IOERROR; 2408 goto ret; 2409 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2410 break; 2411 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2412 if (index < 1 || index > sc->sc_noport) { 2413 err = USBD_IOERROR; 2414 goto ret; 2415 } 2416 port = OHCI_RH_PORT_STATUS(index); 2417 switch(value) { 2418 case UHF_PORT_ENABLE: 2419 OWRITE4(sc, port, UPS_PORT_ENABLED); 2420 break; 2421 case UHF_PORT_SUSPEND: 2422 OWRITE4(sc, port, UPS_SUSPEND); 2423 break; 2424 case UHF_PORT_RESET: 2425 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2426 index)); 2427 OWRITE4(sc, port, UPS_RESET); 2428 for (i = 0; i < 10; i++) { 2429 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 2430 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2431 break; 2432 } 2433 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2434 index, OREAD4(sc, port))); 2435 break; 2436 case UHF_PORT_POWER: 2437 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2438 "%d\n", index)); 2439 OWRITE4(sc, port, UPS_PORT_POWER); 2440 break; 2441 default: 2442 err = USBD_IOERROR; 2443 goto ret; 2444 } 2445 break; 2446 default: 2447 err = USBD_IOERROR; 2448 goto ret; 2449 } 2450 xfer->actlen = totlen; 2451 err = USBD_NORMAL_COMPLETION; 2452 ret: 2453 xfer->status = err; 2454 s = splusb(); 2455 usb_transfer_complete(xfer); 2456 splx(s); 2457 return (USBD_IN_PROGRESS); 2458 } 2459 2460 /* Abort a root control request. */ 2461 Static void 2462 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2463 { 2464 /* Nothing to do, all transfers are synchronous. */ 2465 } 2466 2467 /* Close the root pipe. */ 2468 Static void 2469 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2470 { 2471 DPRINTF(("ohci_root_ctrl_close\n")); 2472 /* Nothing to do. */ 2473 } 2474 2475 Static usbd_status 2476 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2477 { 2478 usbd_status err; 2479 2480 /* Insert last in queue. */ 2481 err = usb_insert_transfer(xfer); 2482 if (err) 2483 return (err); 2484 2485 /* Pipe isn't running, start first */ 2486 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2487 } 2488 2489 Static usbd_status 2490 ohci_root_intr_start(usbd_xfer_handle xfer) 2491 { 2492 usbd_pipe_handle pipe = xfer->pipe; 2493 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2494 2495 if (sc->sc_dying) 2496 return (USBD_IOERROR); 2497 2498 sc->sc_intrxfer = xfer; 2499 2500 return (USBD_IN_PROGRESS); 2501 } 2502 2503 /* Abort a root interrupt request. */ 2504 Static void 2505 ohci_root_intr_abort(usbd_xfer_handle xfer) 2506 { 2507 int s; 2508 2509 if (xfer->pipe->intrxfer == xfer) { 2510 DPRINTF(("ohci_root_intr_abort: remove\n")); 2511 xfer->pipe->intrxfer = NULL; 2512 } 2513 xfer->status = USBD_CANCELLED; 2514 s = splusb(); 2515 usb_transfer_complete(xfer); 2516 splx(s); 2517 } 2518 2519 /* Close the root pipe. */ 2520 Static void 2521 ohci_root_intr_close(usbd_pipe_handle pipe) 2522 { 2523 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2524 2525 DPRINTF(("ohci_root_intr_close\n")); 2526 2527 sc->sc_intrxfer = NULL; 2528 } 2529 2530 /************************/ 2531 2532 Static usbd_status 2533 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2534 { 2535 usbd_status err; 2536 2537 /* Insert last in queue. */ 2538 err = usb_insert_transfer(xfer); 2539 if (err) 2540 return (err); 2541 2542 /* Pipe isn't running, start first */ 2543 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2544 } 2545 2546 Static usbd_status 2547 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2548 { 2549 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2550 usbd_status err; 2551 2552 if (sc->sc_dying) 2553 return (USBD_IOERROR); 2554 2555 #ifdef DIAGNOSTIC 2556 if (!(xfer->rqflags & URQ_REQUEST)) { 2557 /* XXX panic */ 2558 printf("ohci_device_ctrl_transfer: not a request\n"); 2559 return (USBD_INVAL); 2560 } 2561 #endif 2562 2563 err = ohci_device_request(xfer); 2564 if (err) 2565 return (err); 2566 2567 if (sc->sc_bus.use_polling) 2568 ohci_waitintr(sc, xfer); 2569 return (USBD_IN_PROGRESS); 2570 } 2571 2572 /* Abort a device control request. */ 2573 Static void 2574 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2575 { 2576 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2577 ohci_abort_xfer(xfer, USBD_CANCELLED); 2578 } 2579 2580 /* Close a device control pipe. */ 2581 Static void 2582 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2583 { 2584 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2585 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2586 2587 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2588 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2589 ohci_free_std(sc, opipe->tail.td); 2590 } 2591 2592 /************************/ 2593 2594 Static void 2595 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2596 { 2597 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2598 2599 opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY); 2600 } 2601 2602 Static void 2603 ohci_noop(usbd_pipe_handle pipe) 2604 { 2605 } 2606 2607 Static usbd_status 2608 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2609 { 2610 usbd_status err; 2611 2612 /* Insert last in queue. */ 2613 err = usb_insert_transfer(xfer); 2614 if (err) 2615 return (err); 2616 2617 /* Pipe isn't running, start first */ 2618 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2619 } 2620 2621 Static usbd_status 2622 ohci_device_bulk_start(usbd_xfer_handle xfer) 2623 { 2624 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2625 usbd_device_handle dev = opipe->pipe.device; 2626 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2627 int addr = dev->address; 2628 ohci_soft_td_t *data, *tail, *tdp; 2629 ohci_soft_ed_t *sed; 2630 int s, len, isread, endpt; 2631 usbd_status err; 2632 2633 if (sc->sc_dying) 2634 return (USBD_IOERROR); 2635 2636 #ifdef DIAGNOSTIC 2637 if (xfer->rqflags & URQ_REQUEST) { 2638 /* XXX panic */ 2639 printf("ohci_device_bulk_start: a request\n"); 2640 return (USBD_INVAL); 2641 } 2642 #endif 2643 2644 len = xfer->length; 2645 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2646 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2647 sed = opipe->sed; 2648 2649 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2650 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2651 endpt)); 2652 2653 opipe->u.bulk.isread = isread; 2654 opipe->u.bulk.length = len; 2655 2656 /* Update device address */ 2657 sed->ed.ed_flags = htole32( 2658 (le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2659 OHCI_ED_SET_FA(addr)); 2660 2661 /* Allocate a chain of new TDs (including a new tail). */ 2662 data = opipe->tail.td; 2663 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2664 data, &tail); 2665 /* We want interrupt at the end of the transfer. */ 2666 tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK); 2667 tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1)); 2668 tail->flags |= OHCI_CALL_DONE; 2669 tail = tail->nexttd; /* point at sentinel */ 2670 if (err) 2671 return (err); 2672 2673 tail->xfer = NULL; 2674 xfer->hcpriv = data; 2675 2676 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2677 "td_cbp=0x%08x td_be=0x%08x\n", 2678 (int)le32toh(sed->ed.ed_flags), 2679 (int)le32toh(data->td.td_flags), 2680 (int)le32toh(data->td.td_cbp), 2681 (int)le32toh(data->td.td_be))); 2682 2683 #ifdef OHCI_DEBUG 2684 if (ohcidebug > 5) { 2685 ohci_dump_ed(sed); 2686 ohci_dump_tds(data); 2687 } 2688 #endif 2689 2690 /* Insert ED in schedule */ 2691 s = splusb(); 2692 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2693 tdp->xfer = xfer; 2694 } 2695 sed->ed.ed_tailp = htole32(tail->physaddr); 2696 opipe->tail.td = tail; 2697 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2698 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2699 if (xfer->timeout && !sc->sc_bus.use_polling) { 2700 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2701 ohci_timeout, xfer); 2702 } 2703 2704 #if 0 2705 /* This goes wrong if we are too slow. */ 2706 if (ohcidebug > 10) { 2707 delay(10000); 2708 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2709 OREAD4(sc, OHCI_COMMAND_STATUS))); 2710 ohci_dump_ed(sed); 2711 ohci_dump_tds(data); 2712 } 2713 #endif 2714 2715 splx(s); 2716 2717 return (USBD_IN_PROGRESS); 2718 } 2719 2720 Static void 2721 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2722 { 2723 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2724 ohci_abort_xfer(xfer, USBD_CANCELLED); 2725 } 2726 2727 /* 2728 * Close a device bulk pipe. 2729 */ 2730 Static void 2731 ohci_device_bulk_close(usbd_pipe_handle pipe) 2732 { 2733 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2734 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2735 2736 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2737 ohci_close_pipe(pipe, sc->sc_bulk_head); 2738 ohci_free_std(sc, opipe->tail.td); 2739 } 2740 2741 /************************/ 2742 2743 Static usbd_status 2744 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2745 { 2746 usbd_status err; 2747 2748 /* Insert last in queue. */ 2749 err = usb_insert_transfer(xfer); 2750 if (err) 2751 return (err); 2752 2753 /* Pipe isn't running, start first */ 2754 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2755 } 2756 2757 Static usbd_status 2758 ohci_device_intr_start(usbd_xfer_handle xfer) 2759 { 2760 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2761 usbd_device_handle dev = opipe->pipe.device; 2762 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2763 ohci_soft_ed_t *sed = opipe->sed; 2764 ohci_soft_td_t *data, *tail; 2765 int len; 2766 int s; 2767 2768 if (sc->sc_dying) 2769 return (USBD_IOERROR); 2770 2771 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2772 "flags=%d priv=%p\n", 2773 xfer, xfer->length, xfer->flags, xfer->priv)); 2774 2775 #ifdef DIAGNOSTIC 2776 if (xfer->rqflags & URQ_REQUEST) 2777 panic("ohci_device_intr_transfer: a request\n"); 2778 #endif 2779 2780 len = xfer->length; 2781 2782 data = opipe->tail.td; 2783 tail = ohci_alloc_std(sc); 2784 if (tail == NULL) 2785 return (USBD_NOMEM); 2786 tail->xfer = NULL; 2787 2788 data->td.td_flags = htole32( 2789 OHCI_TD_IN | OHCI_TD_NOCC | 2790 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2791 if (xfer->flags & USBD_SHORT_XFER_OK) 2792 data->td.td_flags |= htole32(OHCI_TD_R); 2793 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 2794 data->nexttd = tail; 2795 data->td.td_nexttd = htole32(tail->physaddr); 2796 data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1); 2797 data->len = len; 2798 data->xfer = xfer; 2799 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2800 xfer->hcpriv = data; 2801 2802 #ifdef OHCI_DEBUG 2803 if (ohcidebug > 5) { 2804 DPRINTF(("ohci_device_intr_transfer:\n")); 2805 ohci_dump_ed(sed); 2806 ohci_dump_tds(data); 2807 } 2808 #endif 2809 2810 /* Insert ED in schedule */ 2811 s = splusb(); 2812 sed->ed.ed_tailp = htole32(tail->physaddr); 2813 opipe->tail.td = tail; 2814 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2815 2816 #if 0 2817 /* 2818 * This goes horribly wrong, printing thousands of descriptors, 2819 * because false references are followed due to the fact that the 2820 * TD is gone. 2821 */ 2822 if (ohcidebug > 5) { 2823 usb_delay_ms(&sc->sc_bus, 5); 2824 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2825 OREAD4(sc, OHCI_COMMAND_STATUS))); 2826 ohci_dump_ed(sed); 2827 ohci_dump_tds(data); 2828 } 2829 #endif 2830 splx(s); 2831 2832 return (USBD_IN_PROGRESS); 2833 } 2834 2835 /* Abort a device control request. */ 2836 Static void 2837 ohci_device_intr_abort(usbd_xfer_handle xfer) 2838 { 2839 if (xfer->pipe->intrxfer == xfer) { 2840 DPRINTF(("ohci_device_intr_abort: remove\n")); 2841 xfer->pipe->intrxfer = NULL; 2842 } 2843 ohci_abort_xfer(xfer, USBD_CANCELLED); 2844 } 2845 2846 /* Close a device interrupt pipe. */ 2847 Static void 2848 ohci_device_intr_close(usbd_pipe_handle pipe) 2849 { 2850 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2851 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2852 int nslots = opipe->u.intr.nslots; 2853 int pos = opipe->u.intr.pos; 2854 int j; 2855 ohci_soft_ed_t *p, *sed = opipe->sed; 2856 int s; 2857 2858 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2859 pipe, nslots, pos)); 2860 s = splusb(); 2861 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 2862 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2863 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2864 usb_delay_ms(&sc->sc_bus, 2); 2865 2866 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2867 ; 2868 #ifdef DIAGNOSTIC 2869 if (p == NULL) 2870 panic("ohci_device_intr_close: ED not found\n"); 2871 #endif 2872 p->next = sed->next; 2873 p->ed.ed_nexted = sed->ed.ed_nexted; 2874 splx(s); 2875 2876 for (j = 0; j < nslots; j++) 2877 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2878 2879 ohci_free_std(sc, opipe->tail.td); 2880 ohci_free_sed(sc, opipe->sed); 2881 } 2882 2883 Static usbd_status 2884 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 2885 { 2886 int i, j, s, best; 2887 u_int npoll, slow, shigh, nslots; 2888 u_int bestbw, bw; 2889 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2890 2891 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2892 if (ival == 0) { 2893 printf("ohci_setintr: 0 interval\n"); 2894 return (USBD_INVAL); 2895 } 2896 2897 npoll = OHCI_NO_INTRS; 2898 while (npoll > ival) 2899 npoll /= 2; 2900 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2901 2902 /* 2903 * We now know which level in the tree the ED must go into. 2904 * Figure out which slot has most bandwidth left over. 2905 * Slots to examine: 2906 * npoll 2907 * 1 0 2908 * 2 1 2 2909 * 4 3 4 5 6 2910 * 8 7 8 9 10 11 12 13 14 2911 * N (N-1) .. (N-1+N-1) 2912 */ 2913 slow = npoll-1; 2914 shigh = slow + npoll; 2915 nslots = OHCI_NO_INTRS / npoll; 2916 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2917 bw = 0; 2918 for (j = 0; j < nslots; j++) 2919 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2920 if (bw < bestbw) { 2921 best = i; 2922 bestbw = bw; 2923 } 2924 } 2925 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2926 best, slow, shigh, bestbw)); 2927 2928 s = splusb(); 2929 hsed = sc->sc_eds[best]; 2930 sed->next = hsed->next; 2931 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2932 hsed->next = sed; 2933 hsed->ed.ed_nexted = htole32(sed->physaddr); 2934 splx(s); 2935 2936 for (j = 0; j < nslots; j++) 2937 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2938 opipe->u.intr.nslots = nslots; 2939 opipe->u.intr.pos = best; 2940 2941 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2942 return (USBD_NORMAL_COMPLETION); 2943 } 2944 2945 /***********************/ 2946 2947 usbd_status 2948 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 2949 { 2950 usbd_status err; 2951 2952 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2953 2954 /* Put it on our queue, */ 2955 err = usb_insert_transfer(xfer); 2956 2957 /* bail out on error, */ 2958 if (err && err != USBD_IN_PROGRESS) 2959 return (err); 2960 2961 /* XXX should check inuse here */ 2962 2963 /* insert into schedule, */ 2964 ohci_device_isoc_enter(xfer); 2965 2966 /* and start if the pipe wasn't running */ 2967 if (!err) 2968 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2969 2970 return (err); 2971 } 2972 2973 void 2974 ohci_device_isoc_enter(usbd_xfer_handle xfer) 2975 { 2976 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2977 usbd_device_handle dev = opipe->pipe.device; 2978 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2979 ohci_soft_ed_t *sed = opipe->sed; 2980 struct iso *iso = &opipe->u.iso; 2981 ohci_soft_itd_t *sitd, *nsitd; 2982 ohci_physaddr_t buf, offs, noffs, bp0; 2983 int i, ncur, nframes; 2984 int s; 2985 2986 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 2987 "nframes=%d\n", 2988 iso->inuse, iso->next, xfer, xfer->nframes)); 2989 2990 if (sc->sc_dying) 2991 return; 2992 2993 if (iso->next == -1) { 2994 /* Not in use yet, schedule it a few frames ahead. */ 2995 iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5; 2996 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 2997 iso->next)); 2998 } 2999 3000 sitd = opipe->tail.itd; 3001 buf = DMAADDR(&xfer->dmabuf); 3002 bp0 = OHCI_PAGE(buf); 3003 offs = OHCI_PAGE_OFFSET(buf); 3004 nframes = xfer->nframes; 3005 xfer->hcpriv = sitd; 3006 for (i = ncur = 0; i < nframes; i++, ncur++) { 3007 noffs = offs + xfer->frlengths[i]; 3008 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3009 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3010 3011 /* Allocate next ITD */ 3012 nsitd = ohci_alloc_sitd(sc); 3013 if (nsitd == NULL) { 3014 /* XXX what now? */ 3015 printf("%s: isoc TD alloc failed\n", 3016 USBDEVNAME(sc->sc_bus.bdev)); 3017 return; 3018 } 3019 3020 /* Fill current ITD */ 3021 sitd->itd.itd_flags = htole32( 3022 OHCI_ITD_NOCC | 3023 OHCI_ITD_SET_SF(iso->next) | 3024 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3025 OHCI_ITD_SET_FC(ncur)); 3026 sitd->itd.itd_bp0 = htole32(bp0); 3027 sitd->nextitd = nsitd; 3028 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3029 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3030 sitd->xfer = xfer; 3031 sitd->flags = 0; 3032 3033 sitd = nsitd; 3034 iso->next = iso->next + ncur; 3035 bp0 = OHCI_PAGE(buf + offs); 3036 ncur = 0; 3037 } 3038 sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs)); 3039 offs = noffs; 3040 } 3041 nsitd = ohci_alloc_sitd(sc); 3042 if (nsitd == NULL) { 3043 /* XXX what now? */ 3044 printf("%s: isoc TD alloc failed\n", 3045 USBDEVNAME(sc->sc_bus.bdev)); 3046 return; 3047 } 3048 /* Fixup last used ITD */ 3049 sitd->itd.itd_flags = htole32( 3050 OHCI_ITD_NOCC | 3051 OHCI_ITD_SET_SF(iso->next) | 3052 OHCI_ITD_SET_DI(0) | 3053 OHCI_ITD_SET_FC(ncur)); 3054 sitd->itd.itd_bp0 = htole32(bp0); 3055 sitd->nextitd = nsitd; 3056 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3057 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3058 sitd->xfer = xfer; 3059 sitd->flags = OHCI_CALL_DONE; 3060 3061 iso->next = iso->next + ncur; 3062 iso->inuse += nframes; 3063 3064 xfer->actlen = offs; /* XXX pretend we did it all */ 3065 3066 xfer->status = USBD_IN_PROGRESS; 3067 3068 #ifdef OHCI_DEBUG 3069 if (ohcidebug > 5) { 3070 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3071 le32toh(sc->sc_hcca->hcca_frame_number))); 3072 ohci_dump_itds(xfer->hcpriv); 3073 ohci_dump_ed(sed); 3074 } 3075 #endif 3076 3077 s = splusb(); 3078 opipe->tail.itd = nsitd; 3079 sed->ed.ed_tailp = htole32(nsitd->physaddr); 3080 splx(s); 3081 3082 #ifdef OHCI_DEBUG 3083 if (ohcidebug > 5) { 3084 delay(150000); 3085 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3086 le32toh(sc->sc_hcca->hcca_frame_number))); 3087 ohci_dump_itds(xfer->hcpriv); 3088 ohci_dump_ed(sed); 3089 } 3090 #endif 3091 } 3092 3093 usbd_status 3094 ohci_device_isoc_start(usbd_xfer_handle xfer) 3095 { 3096 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3097 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3098 3099 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3100 3101 if (sc->sc_dying) 3102 return (USBD_IOERROR); 3103 3104 #ifdef DIAGNOSTIC 3105 if (xfer->status != USBD_IN_PROGRESS) 3106 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 3107 #endif 3108 3109 /* XXX anything to do? */ 3110 3111 return (USBD_IN_PROGRESS); 3112 } 3113 3114 void 3115 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3116 { 3117 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3118 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3119 ohci_soft_ed_t *sed; 3120 ohci_soft_itd_t *sitd; 3121 int s; 3122 3123 s = splusb(); 3124 3125 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3126 3127 /* Transfer is already done. */ 3128 if (xfer->status != USBD_NOT_STARTED && 3129 xfer->status != USBD_IN_PROGRESS) { 3130 splx(s); 3131 printf("ohci_device_isoc_abort: early return\n"); 3132 return; 3133 } 3134 3135 /* Give xfer the requested abort code. */ 3136 xfer->status = USBD_CANCELLED; 3137 3138 sed = opipe->sed; 3139 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 3140 3141 sitd = xfer->hcpriv; 3142 #ifdef DIAGNOSTIC 3143 if (sitd == NULL) { 3144 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3145 return; 3146 } 3147 #endif 3148 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3149 #ifdef DIAGNOSTIC 3150 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3151 sitd->isdone = 1; 3152 #endif 3153 } 3154 3155 splx(s); 3156 3157 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3158 3159 s = splusb(); 3160 3161 /* Run callback. */ 3162 usb_transfer_complete(xfer); 3163 3164 sed->ed.ed_headp = htole32(sitd->physaddr); /* unlink TDs */ 3165 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 3166 3167 splx(s); 3168 } 3169 3170 void 3171 ohci_device_isoc_done(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_itd_t *sitd, *nsitd; 3176 3177 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3178 3179 for (sitd = xfer->hcpriv; 3180 !(sitd->flags & OHCI_CALL_DONE); 3181 sitd = nsitd) { 3182 nsitd = sitd->nextitd; 3183 DPRINTFN(1,("ohci_device_isoc_done: free sitd=%p\n", sitd)); 3184 ohci_free_sitd(sc, sitd); 3185 } 3186 ohci_free_sitd(sc, sitd); 3187 xfer->hcpriv = NULL; 3188 } 3189 3190 usbd_status 3191 ohci_setup_isoc(usbd_pipe_handle pipe) 3192 { 3193 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3194 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3195 struct iso *iso = &opipe->u.iso; 3196 int s; 3197 3198 iso->next = -1; 3199 iso->inuse = 0; 3200 3201 s = splusb(); 3202 ohci_add_ed(opipe->sed, sc->sc_isoc_head); 3203 splx(s); 3204 3205 return (USBD_NORMAL_COMPLETION); 3206 } 3207 3208 void 3209 ohci_device_isoc_close(usbd_pipe_handle pipe) 3210 { 3211 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3212 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3213 int s; 3214 3215 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3216 3217 s = splusb(); 3218 ohci_rem_ed(opipe->sed, sc->sc_isoc_head); 3219 splx(s); 3220 ohci_close_pipe(pipe, sc->sc_isoc_head); 3221 #ifdef DIAGNOSTIC 3222 opipe->tail.itd->isdone = 1; 3223 #endif 3224 ohci_free_sitd(sc, opipe->tail.itd); 3225 } 3226
Indexes created Wed Sep 24 05:09:52 GMT 2025