ohci.c revision 1.72
1 /* $NetBSD: ohci.c,v 1.72 2000/02/22 11:30:54 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Open Host Controller driver. 43 * 44 * OHCI spec: ftp://ftp.compaq.com/pub/supportinformation/papers/hcir1_0a.exe 45 * USB spec: http://www.usb.org/developers/data/usb11.pdf 46 */ 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/malloc.h> 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <sys/kernel.h> 53 #include <sys/device.h> 54 #include <sys/select.h> 55 #elif defined(__FreeBSD__) 56 #include <sys/module.h> 57 #include <sys/bus.h> 58 #include <machine/bus_pio.h> 59 #include <machine/bus_memio.h> 60 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 61 #include <machine/cpu.h> 62 #endif 63 #endif 64 #include <sys/proc.h> 65 #include <sys/queue.h> 66 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/ohcireg.h> 77 #include <dev/usb/ohcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #if defined(__OpenBSD__) 86 struct cfdriver ohci_cd = { 87 NULL, "ohci", DV_DULL 88 }; 89 #endif 90 91 #ifdef OHCI_DEBUG 92 #define DPRINTF(x) if (ohcidebug) logprintf x 93 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 94 int ohcidebug = 0; 95 #else 96 #define DPRINTF(x) 97 #define DPRINTFN(n,x) 98 #endif 99 100 /* 101 * The OHCI controller is little endian, so on big endian machines 102 * the data strored in memory needs to be swapped. 103 */ 104 #if BYTE_ORDER == BIG_ENDIAN 105 #define LE(x) (bswap32(x)) 106 #else 107 #define LE(x) (x) 108 #endif 109 110 struct ohci_pipe; 111 112 static ohci_soft_ed_t *ohci_alloc_sed __P((ohci_softc_t *)); 113 static void ohci_free_sed __P((ohci_softc_t *, ohci_soft_ed_t *)); 114 115 static ohci_soft_td_t *ohci_alloc_std __P((ohci_softc_t *)); 116 static void ohci_free_std __P((ohci_softc_t *, ohci_soft_td_t *)); 117 118 static ohci_soft_itd_t *ohci_alloc_sitd __P((ohci_softc_t *)); 119 static void ohci_free_sitd __P((ohci_softc_t *,ohci_soft_itd_t *)); 120 121 #if 0 122 static void ohci_free_std_chain __P((ohci_softc_t *, 123 ohci_soft_td_t *, ohci_soft_td_t *)); 124 #endif 125 static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *, 126 ohci_softc_t *, int, int, u_int16_t, usb_dma_t *, 127 ohci_soft_td_t *, ohci_soft_td_t **)); 128 129 static void ohci_shutdown __P((void *v)); 130 static void ohci_power __P((int, void *)); 131 static usbd_status ohci_open __P((usbd_pipe_handle)); 132 static void ohci_poll __P((struct usbd_bus *)); 133 static void ohci_softintr __P((struct usbd_bus *)); 134 static void ohci_waitintr __P((ohci_softc_t *, 135 usbd_xfer_handle)); 136 static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 137 138 static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 139 static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 140 static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 141 static void ohci_hash_add_td __P((ohci_softc_t *, 142 ohci_soft_td_t *)); 143 static void ohci_hash_rem_td __P((ohci_softc_t *, 144 ohci_soft_td_t *)); 145 static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 146 ohci_physaddr_t)); 147 148 static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 149 static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 150 151 static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 152 u_int32_t)); 153 static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 154 155 static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 156 static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 157 158 static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 159 static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 160 static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 161 static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 162 static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 163 164 static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 165 static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 166 static void ohci_root_intr_abort __P((usbd_xfer_handle)); 167 static void ohci_root_intr_close __P((usbd_pipe_handle)); 168 static void ohci_root_intr_done __P((usbd_xfer_handle)); 169 170 static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 171 static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 172 static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 173 static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 174 static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 175 176 static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 177 static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 178 static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 179 static void ohci_device_bulk_close __P((usbd_pipe_handle)); 180 static void ohci_device_bulk_done __P((usbd_xfer_handle)); 181 182 static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 183 static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 184 static void ohci_device_intr_abort __P((usbd_xfer_handle)); 185 static void ohci_device_intr_close __P((usbd_pipe_handle)); 186 static void ohci_device_intr_done __P((usbd_xfer_handle)); 187 188 static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 189 static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 190 static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 191 static void ohci_device_isoc_close __P((usbd_pipe_handle)); 192 static void ohci_device_isoc_done __P((usbd_xfer_handle)); 193 194 static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 195 struct ohci_pipe *pipe, int ival)); 196 197 static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 198 199 static void ohci_timeout __P((void *)); 200 static void ohci_rhsc_able __P((ohci_softc_t *, int)); 201 202 static void ohci_close_pipe __P((usbd_pipe_handle pipe, 203 ohci_soft_ed_t *head)); 204 static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 205 usbd_status status)); 206 static void ohci_abort_xfer_end __P((void *)); 207 208 static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 209 static void ohci_noop __P((usbd_pipe_handle pipe)); 210 211 #ifdef OHCI_DEBUG 212 static void ohci_dumpregs __P((ohci_softc_t *)); 213 static void ohci_dump_tds __P((ohci_soft_td_t *)); 214 static void ohci_dump_td __P((ohci_soft_td_t *)); 215 static void ohci_dump_ed __P((ohci_soft_ed_t *)); 216 #endif 217 218 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 219 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 220 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 221 222 /* Reverse the bits in a value 0 .. 31 */ 223 static u_int8_t revbits[OHCI_NO_INTRS] = 224 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 225 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 226 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 227 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 228 229 struct ohci_pipe { 230 struct usbd_pipe pipe; 231 ohci_soft_ed_t *sed; 232 union { 233 ohci_soft_td_t *td; 234 ohci_soft_itd_t *itd; 235 } tail; 236 /* Info needed for different pipe kinds. */ 237 union { 238 /* Control pipe */ 239 struct { 240 usb_dma_t reqdma; 241 u_int length; 242 ohci_soft_td_t *setup, *data, *stat; 243 } ctl; 244 /* Interrupt pipe */ 245 struct { 246 int nslots; 247 int pos; 248 } intr; 249 /* Bulk pipe */ 250 struct { 251 u_int length; 252 int isread; 253 } bulk; 254 /* Iso pipe */ 255 struct iso { 256 int next, inuse; 257 } iso; 258 } u; 259 }; 260 261 #define OHCI_INTR_ENDPT 1 262 263 static struct usbd_bus_methods ohci_bus_methods = { 264 ohci_open, 265 ohci_poll, 266 ohci_softintr, 267 ohci_allocm, 268 ohci_freem, 269 ohci_allocx, 270 ohci_freex, 271 }; 272 273 static struct usbd_pipe_methods ohci_root_ctrl_methods = { 274 ohci_root_ctrl_transfer, 275 ohci_root_ctrl_start, 276 ohci_root_ctrl_abort, 277 ohci_root_ctrl_close, 278 ohci_noop, 279 ohci_root_ctrl_done, 280 }; 281 282 static struct usbd_pipe_methods ohci_root_intr_methods = { 283 ohci_root_intr_transfer, 284 ohci_root_intr_start, 285 ohci_root_intr_abort, 286 ohci_root_intr_close, 287 ohci_noop, 288 ohci_root_intr_done, 289 }; 290 291 static struct usbd_pipe_methods ohci_device_ctrl_methods = { 292 ohci_device_ctrl_transfer, 293 ohci_device_ctrl_start, 294 ohci_device_ctrl_abort, 295 ohci_device_ctrl_close, 296 ohci_noop, 297 ohci_device_ctrl_done, 298 }; 299 300 static struct usbd_pipe_methods ohci_device_intr_methods = { 301 ohci_device_intr_transfer, 302 ohci_device_intr_start, 303 ohci_device_intr_abort, 304 ohci_device_intr_close, 305 ohci_device_clear_toggle, 306 ohci_device_intr_done, 307 }; 308 309 static struct usbd_pipe_methods ohci_device_bulk_methods = { 310 ohci_device_bulk_transfer, 311 ohci_device_bulk_start, 312 ohci_device_bulk_abort, 313 ohci_device_bulk_close, 314 ohci_device_clear_toggle, 315 ohci_device_bulk_done, 316 }; 317 318 static struct usbd_pipe_methods ohci_device_isoc_methods = { 319 ohci_device_isoc_transfer, 320 ohci_device_isoc_start, 321 ohci_device_isoc_abort, 322 ohci_device_isoc_close, 323 ohci_noop, 324 ohci_device_isoc_done, 325 }; 326 327 #if defined(__NetBSD__) || defined(__OpenBSD__) 328 int 329 ohci_activate(self, act) 330 device_ptr_t self; 331 enum devact act; 332 { 333 struct ohci_softc *sc = (struct ohci_softc *)self; 334 int rv = 0; 335 336 switch (act) { 337 case DVACT_ACTIVATE: 338 return (EOPNOTSUPP); 339 break; 340 341 case DVACT_DEACTIVATE: 342 if (sc->sc_child != NULL) 343 rv = config_deactivate(sc->sc_child); 344 break; 345 } 346 return (rv); 347 } 348 349 int 350 ohci_detach(sc, flags) 351 struct ohci_softc *sc; 352 int flags; 353 { 354 int rv = 0; 355 356 if (sc->sc_child != NULL) 357 rv = config_detach(sc->sc_child, flags); 358 359 if (rv != 0) 360 return (rv); 361 362 #if defined(__NetBSD__) || defined(__OpenBSD__) 363 powerhook_disestablish(sc->sc_powerhook); 364 shutdownhook_disestablish(sc->sc_shutdownhook); 365 #endif 366 367 /* free data structures XXX */ 368 369 return (rv); 370 } 371 #endif 372 373 ohci_soft_ed_t * 374 ohci_alloc_sed(sc) 375 ohci_softc_t *sc; 376 { 377 ohci_soft_ed_t *sed; 378 usbd_status err; 379 int i, offs; 380 usb_dma_t dma; 381 382 if (sc->sc_freeeds == NULL) { 383 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 384 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 385 OHCI_ED_ALIGN, &dma); 386 if (err) 387 return (0); 388 for(i = 0; i < OHCI_SED_CHUNK; i++) { 389 offs = i * OHCI_SED_SIZE; 390 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 391 sed->physaddr = DMAADDR(&dma) + offs; 392 sed->next = sc->sc_freeeds; 393 sc->sc_freeeds = sed; 394 } 395 } 396 sed = sc->sc_freeeds; 397 sc->sc_freeeds = sed->next; 398 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 399 sed->next = 0; 400 return (sed); 401 } 402 403 void 404 ohci_free_sed(sc, sed) 405 ohci_softc_t *sc; 406 ohci_soft_ed_t *sed; 407 { 408 sed->next = sc->sc_freeeds; 409 sc->sc_freeeds = sed; 410 } 411 412 ohci_soft_td_t * 413 ohci_alloc_std(sc) 414 ohci_softc_t *sc; 415 { 416 ohci_soft_td_t *std; 417 usbd_status err; 418 int i, offs; 419 usb_dma_t dma; 420 int s; 421 422 if (sc->sc_freetds == NULL) { 423 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 424 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 425 OHCI_TD_ALIGN, &dma); 426 if (err) 427 return (0); 428 s = splusb(); 429 for(i = 0; i < OHCI_STD_CHUNK; i++) { 430 offs = i * OHCI_STD_SIZE; 431 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 432 std->physaddr = DMAADDR(&dma) + offs; 433 std->nexttd = sc->sc_freetds; 434 sc->sc_freetds = std; 435 } 436 splx(s); 437 } 438 439 s = splusb(); 440 std = sc->sc_freetds; 441 sc->sc_freetds = std->nexttd; 442 memset(&std->td, 0, sizeof(ohci_td_t)); 443 std->nexttd = 0; 444 445 ohci_hash_add_td(sc, std); 446 splx(s); 447 448 return (std); 449 } 450 451 void 452 ohci_free_std(sc, std) 453 ohci_softc_t *sc; 454 ohci_soft_td_t *std; 455 { 456 int s; 457 458 s = splusb(); 459 ohci_hash_rem_td(sc, std); 460 461 std->nexttd = sc->sc_freetds; 462 sc->sc_freetds = std; 463 splx(s); 464 } 465 466 usbd_status 467 ohci_alloc_std_chain(opipe, sc, len, rd, flags, dma, sp, ep) 468 struct ohci_pipe *opipe; 469 ohci_softc_t *sc; 470 int len, rd; 471 u_int16_t flags; 472 usb_dma_t *dma; 473 ohci_soft_td_t *sp, **ep; 474 { 475 ohci_soft_td_t *next, *cur; 476 ohci_physaddr_t dataphys, dataphysend; 477 u_int32_t intr, tdflags; 478 int curlen; 479 480 DPRINTFN(len < 4096,("ohci_alloc_std_chain: start len=%d\n", len)); 481 cur = sp; 482 dataphys = DMAADDR(dma); 483 dataphysend = OHCI_PAGE(dataphys + len - 1); 484 tdflags = 485 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 486 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | 487 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0); 488 489 for (;;) { 490 next = ohci_alloc_std(sc); 491 if (next == 0) 492 goto nomem; 493 494 /* The OHCI hardware can handle at most one page crossing. */ 495 if (OHCI_PAGE(dataphys) == dataphysend || 496 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 497 /* we can handle it in this TD */ 498 curlen = len; 499 } else { 500 /* must use multiple TDs, fill as much as possible. */ 501 curlen = 2 * OHCI_PAGE_SIZE - 502 (dataphys & (OHCI_PAGE_SIZE-1)); 503 } 504 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 505 "dataphysend=0x%08x len=%d curlen=%d\n", 506 dataphys, dataphysend, 507 len, curlen)); 508 len -= curlen; 509 510 intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR; 511 cur->td.td_flags = LE(tdflags | intr); 512 cur->td.td_cbp = LE(dataphys); 513 cur->nexttd = next; 514 cur->td.td_nexttd = LE(next->physaddr); 515 cur->td.td_be = LE(dataphys + curlen - 1); 516 cur->len = curlen; 517 cur->flags = OHCI_ADD_LEN; 518 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 519 dataphys, dataphys + curlen - 1)); 520 if (len == 0) 521 break; 522 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 523 dataphys += curlen; 524 cur = next; 525 } 526 if ((flags & USBD_FORCE_SHORT_XFER) && 527 len % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 528 /* Force a 0 length transfer at the end. */ 529 next = ohci_alloc_std(sc); 530 if (next == 0) 531 goto nomem; 532 533 cur->td.td_flags = LE(tdflags | OHCI_TD_SET_DI(1)); 534 cur->td.td_cbp = 0; /* indicate 0 length packet */ 535 cur->nexttd = next; 536 cur->td.td_nexttd = LE(next->physaddr); 537 cur->td.td_be = LE(dataphys - 1); 538 cur->len = 0; 539 cur->flags = 0; 540 cur = next; 541 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 542 } 543 cur->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 544 *ep = next; 545 546 return (USBD_NORMAL_COMPLETION); 547 548 nomem: 549 /* XXX free chain */ 550 return (USBD_NOMEM); 551 } 552 553 #if 0 554 static void 555 ohci_free_std_chain(sc, std, stdend) 556 ohci_softc_t *sc; 557 ohci_soft_td_t *std; 558 ohci_soft_td_t *stdend; 559 { 560 ohci_soft_td_t *p; 561 562 for (; std != stdend; std = p) { 563 p = std->nexttd; 564 ohci_free_std(sc, std); 565 } 566 } 567 #endif 568 569 ohci_soft_itd_t * 570 ohci_alloc_sitd(sc) 571 ohci_softc_t *sc; 572 { 573 ohci_soft_itd_t *sitd; 574 usbd_status err; 575 int i, offs; 576 usb_dma_t dma; 577 578 if (sc->sc_freeitds == NULL) { 579 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 580 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 581 OHCI_TD_ALIGN, &dma); 582 if (err) 583 return (0); 584 for(i = 0; i < OHCI_STD_CHUNK; i++) { 585 offs = i * OHCI_STD_SIZE; 586 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 587 sitd->physaddr = DMAADDR(&dma) + offs; 588 sitd->nextitd = sc->sc_freeitds; 589 sc->sc_freeitds = sitd; 590 } 591 } 592 sitd = sc->sc_freeitds; 593 sc->sc_freeitds = sitd->nextitd; 594 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 595 sitd->nextitd = 0; 596 return (sitd); 597 } 598 599 void 600 ohci_free_sitd(sc, sitd) 601 ohci_softc_t *sc; 602 ohci_soft_itd_t *sitd; 603 { 604 sitd->nextitd = sc->sc_freeitds; 605 sc->sc_freeitds = sitd; 606 } 607 608 usbd_status 609 ohci_init(sc) 610 ohci_softc_t *sc; 611 { 612 ohci_soft_ed_t *sed, *psed; 613 usbd_status err; 614 int i; 615 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 616 617 DPRINTF(("ohci_init: start\n")); 618 #if defined(__OpenBSD__) 619 printf(","); 620 #else 621 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 622 #endif 623 rev = OREAD4(sc, OHCI_REVISION); 624 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 625 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 626 627 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 628 printf("%s: unsupported OHCI revision\n", 629 USBDEVNAME(sc->sc_bus.bdev)); 630 sc->sc_bus.usbrev = USBREV_UNKNOWN; 631 return (USBD_INVAL); 632 } 633 sc->sc_bus.usbrev = USBREV_1_0; 634 635 for (i = 0; i < OHCI_HASH_SIZE; i++) 636 LIST_INIT(&sc->sc_hash_tds[i]); 637 638 SIMPLEQ_INIT(&sc->sc_free_xfers); 639 640 /* Allocate the HCCA area. */ 641 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 642 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 643 if (err) 644 return (err); 645 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 646 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 647 648 sc->sc_eintrs = OHCI_NORMAL_INTRS; 649 650 /* Allocate dummy ED that starts the control list. */ 651 sc->sc_ctrl_head = ohci_alloc_sed(sc); 652 if (sc->sc_ctrl_head == NULL) { 653 err = USBD_NOMEM; 654 goto bad1; 655 } 656 sc->sc_ctrl_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 657 658 /* Allocate dummy ED that starts the bulk list. */ 659 sc->sc_bulk_head = ohci_alloc_sed(sc); 660 if (sc->sc_bulk_head == NULL) { 661 err = USBD_NOMEM; 662 goto bad2; 663 } 664 sc->sc_bulk_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 665 666 /* Allocate dummy ED that starts the isochronous list. */ 667 sc->sc_isoc_head = ohci_alloc_sed(sc); 668 if (sc->sc_isoc_head == NULL) { 669 err = USBD_NOMEM; 670 goto bad3; 671 } 672 sc->sc_isoc_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 673 674 /* Allocate all the dummy EDs that make up the interrupt tree. */ 675 for (i = 0; i < OHCI_NO_EDS; i++) { 676 sed = ohci_alloc_sed(sc); 677 if (sed == NULL) { 678 while (--i >= 0) 679 ohci_free_sed(sc, sc->sc_eds[i]); 680 err = USBD_NOMEM; 681 goto bad4; 682 } 683 /* All ED fields are set to 0. */ 684 sc->sc_eds[i] = sed; 685 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 686 if (i != 0) 687 psed = sc->sc_eds[(i-1) / 2]; 688 else 689 psed= sc->sc_isoc_head; 690 sed->next = psed; 691 sed->ed.ed_nexted = LE(psed->physaddr); 692 } 693 /* 694 * Fill HCCA interrupt table. The bit reversal is to get 695 * the tree set up properly to spread the interrupts. 696 */ 697 for (i = 0; i < OHCI_NO_INTRS; i++) 698 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 699 LE(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 700 701 /* Determine in what context we are running. */ 702 ctl = OREAD4(sc, OHCI_CONTROL); 703 if (ctl & OHCI_IR) { 704 /* SMM active, request change */ 705 DPRINTF(("ohci_init: SMM active, request owner change\n")); 706 s = OREAD4(sc, OHCI_COMMAND_STATUS); 707 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 708 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 709 usb_delay_ms(&sc->sc_bus, 1); 710 ctl = OREAD4(sc, OHCI_CONTROL); 711 } 712 if ((ctl & OHCI_IR) == 0) { 713 printf("%s: SMM does not respond, resetting\n", 714 USBDEVNAME(sc->sc_bus.bdev)); 715 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 716 goto reset; 717 } 718 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 719 /* BIOS started controller. */ 720 DPRINTF(("ohci_init: BIOS active\n")); 721 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 722 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 723 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 724 } 725 } else { 726 DPRINTF(("ohci_init: cold started\n")); 727 reset: 728 /* Controller was cold started. */ 729 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 730 } 731 732 /* 733 * This reset should not be necessary according to the OHCI spec, but 734 * without it some controllers do not start. 735 */ 736 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 737 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 738 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 739 740 /* We now own the host controller and the bus has been reset. */ 741 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 742 743 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 744 /* Nominal time for a reset is 10 us. */ 745 for (i = 0; i < 10; i++) { 746 delay(10); 747 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 748 if (!hcr) 749 break; 750 } 751 if (hcr) { 752 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 753 err = USBD_IOERROR; 754 goto bad5; 755 } 756 #ifdef OHCI_DEBUG 757 if (ohcidebug > 15) 758 ohci_dumpregs(sc); 759 #endif 760 761 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 762 763 /* Set up HC registers. */ 764 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 765 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 766 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 767 /* disable all interrupts and then switch on all desired interrupts */ 768 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 769 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 770 /* switch on desired functional features */ 771 ctl = OREAD4(sc, OHCI_CONTROL); 772 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 773 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 774 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 775 /* And finally start it! */ 776 OWRITE4(sc, OHCI_CONTROL, ctl); 777 778 /* 779 * The controller is now OPERATIONAL. Set a some final 780 * registers that should be set earlier, but that the 781 * controller ignores when in the SUSPEND state. 782 */ 783 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 784 fm |= OHCI_FSMPS(ival) | ival; 785 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 786 per = OHCI_PERIODIC(ival); /* 90% periodic */ 787 OWRITE4(sc, OHCI_PERIODIC_START, per); 788 789 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 790 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 791 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 792 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 793 usb_delay_ms(&sc->sc_bus, 5); 794 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 795 796 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 797 798 #ifdef OHCI_DEBUG 799 if (ohcidebug > 5) 800 ohci_dumpregs(sc); 801 #endif 802 803 /* Set up the bus struct. */ 804 sc->sc_bus.methods = &ohci_bus_methods; 805 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 806 807 #if defined(__NetBSD__) || defined(__OpenBSD__) 808 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 809 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 810 #endif 811 812 return (USBD_NORMAL_COMPLETION); 813 814 bad5: 815 for (i = 0; i < OHCI_NO_EDS; i++) 816 ohci_free_sed(sc, sc->sc_eds[i]); 817 bad4: 818 ohci_free_sed(sc, sc->sc_isoc_head); 819 bad3: 820 ohci_free_sed(sc, sc->sc_ctrl_head); 821 bad2: 822 ohci_free_sed(sc, sc->sc_bulk_head); 823 bad1: 824 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 825 return (err); 826 } 827 828 usbd_status 829 ohci_allocm(bus, dma, size) 830 struct usbd_bus *bus; 831 usb_dma_t *dma; 832 u_int32_t size; 833 { 834 #if defined(__NetBSD__) || defined(__OpenBSD__) 835 struct ohci_softc *sc = (struct ohci_softc *)bus; 836 #endif 837 838 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 839 } 840 841 void 842 ohci_freem(bus, dma) 843 struct usbd_bus *bus; 844 usb_dma_t *dma; 845 { 846 #if defined(__NetBSD__) || defined(__OpenBSD__) 847 struct ohci_softc *sc = (struct ohci_softc *)bus; 848 #endif 849 850 usb_freemem(&sc->sc_bus, dma); 851 } 852 853 usbd_xfer_handle 854 ohci_allocx(bus) 855 struct usbd_bus *bus; 856 { 857 struct ohci_softc *sc = (struct ohci_softc *)bus; 858 usbd_xfer_handle xfer; 859 860 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 861 if (xfer != NULL) 862 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 863 else 864 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 865 if (xfer != NULL) 866 memset(xfer, 0, sizeof *xfer); 867 return (xfer); 868 } 869 870 void 871 ohci_freex(bus, xfer) 872 struct usbd_bus *bus; 873 usbd_xfer_handle xfer; 874 { 875 struct ohci_softc *sc = (struct ohci_softc *)bus; 876 877 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 878 } 879 880 /* 881 * Shut down the controller when the system is going down. 882 */ 883 void 884 ohci_shutdown(v) 885 void *v; 886 { 887 ohci_softc_t *sc = v; 888 889 DPRINTF(("ohci_shutdown: stopping the HC\n")); 890 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 891 } 892 893 /* 894 * Handle suspend/resume. 895 * 896 * We need to switch to polling mode here, because this routine is 897 * called from an intterupt context. This is all right since we 898 * are almost suspended anyway. 899 */ 900 void 901 ohci_power(why, v) 902 int why; 903 void *v; 904 { 905 #ifdef OHCI_DEBUG 906 ohci_softc_t *sc = v; 907 908 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 909 /* XXX should suspend/resume */ 910 ohci_dumpregs(sc); 911 #endif 912 } 913 914 #ifdef OHCI_DEBUG 915 void 916 ohci_dumpregs(sc) 917 ohci_softc_t *sc; 918 { 919 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 920 OREAD4(sc, OHCI_REVISION), 921 OREAD4(sc, OHCI_CONTROL), 922 OREAD4(sc, OHCI_COMMAND_STATUS))); 923 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 924 OREAD4(sc, OHCI_INTERRUPT_STATUS), 925 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 926 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 927 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 928 OREAD4(sc, OHCI_HCCA), 929 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 930 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 931 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 932 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 933 OREAD4(sc, OHCI_BULK_HEAD_ED), 934 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 935 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 936 OREAD4(sc, OHCI_DONE_HEAD), 937 OREAD4(sc, OHCI_FM_INTERVAL), 938 OREAD4(sc, OHCI_FM_REMAINING))); 939 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 940 OREAD4(sc, OHCI_FM_NUMBER), 941 OREAD4(sc, OHCI_PERIODIC_START), 942 OREAD4(sc, OHCI_LS_THRESHOLD))); 943 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 944 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 945 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 946 OREAD4(sc, OHCI_RH_STATUS))); 947 DPRINTF((" port1=0x%08x port2=0x%08x\n", 948 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 949 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 950 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 951 LE(sc->sc_hcca->hcca_frame_number), 952 LE(sc->sc_hcca->hcca_done_head))); 953 } 954 #endif 955 956 static int ohci_intr1 __P((ohci_softc_t *)); 957 958 int 959 ohci_intr(p) 960 void *p; 961 { 962 ohci_softc_t *sc = p; 963 964 /* If we get an interrupt while polling, then just ignore it. */ 965 if (sc->sc_bus.use_polling) { 966 #ifdef DIAGNOSTIC 967 printf("ohci_intr: ignored interrupt while polling\n"); 968 #endif 969 return (0); 970 } 971 972 return (ohci_intr1(sc)); 973 } 974 975 static int 976 ohci_intr1(sc) 977 ohci_softc_t *sc; 978 { 979 u_int32_t intrs, eintrs; 980 ohci_physaddr_t done; 981 982 /* In case the interrupt occurs before initialization has completed. */ 983 if (sc == NULL || sc->sc_hcca == NULL) { 984 #ifdef DIAGNOSTIC 985 printf("ohci_intr: sc->sc_hcca == NULL\n"); 986 #endif 987 return (0); 988 } 989 990 intrs = 0; 991 done = LE(sc->sc_hcca->hcca_done_head); 992 if (done != 0) { 993 if (done & ~OHCI_DONE_INTRS) 994 intrs = OHCI_WDH; 995 if (done & OHCI_DONE_INTRS) 996 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 997 } else 998 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 999 1000 if (!intrs) 1001 return (0); 1002 1003 intrs &= ~OHCI_MIE; 1004 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1005 eintrs = intrs & sc->sc_eintrs; 1006 if (!eintrs) 1007 return (0); 1008 1009 sc->sc_bus.intr_context++; 1010 sc->sc_bus.no_intrs++; 1011 DPRINTFN(7, ("ohci_intr: sc=%p intrs=%x(%x) eintr=%x\n", 1012 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1013 (u_int)eintrs)); 1014 1015 if (eintrs & OHCI_SO) { 1016 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1017 /* XXX do what */ 1018 intrs &= ~OHCI_SO; 1019 } 1020 if (eintrs & OHCI_WDH) { 1021 done &= OHCI_DONE_INTRS; 1022 if (sc->sc_done == 0) 1023 sc->sc_done = done; 1024 else { 1025 /* Tack on at the end of sc_done. */ 1026 ohci_physaddr_t ldone; 1027 ohci_soft_td_t *std; 1028 1029 for (ldone = sc->sc_done; ldone != 0; 1030 ldone = LE(std->td.td_nexttd)) 1031 std = ohci_hash_find_td(sc, done); 1032 std->td.td_nexttd = LE(done); 1033 } 1034 sc->sc_hcca->hcca_done_head = 0; 1035 usb_schedsoftintr(&sc->sc_bus); 1036 intrs &= ~OHCI_WDH; 1037 } 1038 if (eintrs & OHCI_RD) { 1039 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1040 /* XXX process resume detect */ 1041 } 1042 if (eintrs & OHCI_UE) { 1043 printf("%s: unrecoverable error, controller halted\n", 1044 USBDEVNAME(sc->sc_bus.bdev)); 1045 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1046 /* XXX what else */ 1047 } 1048 if (eintrs & OHCI_RHSC) { 1049 ohci_rhsc(sc, sc->sc_intrxfer); 1050 intrs &= ~OHCI_RHSC; 1051 1052 /* 1053 * Disable RHSC interrupt for now, because it will be 1054 * on until the port has been reset. 1055 */ 1056 ohci_rhsc_able(sc, 0); 1057 } 1058 1059 sc->sc_bus.intr_context--; 1060 1061 /* Block unprocessed interrupts. XXX */ 1062 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1063 sc->sc_eintrs &= ~intrs; 1064 1065 return (1); 1066 } 1067 1068 void 1069 ohci_rhsc_able(sc, on) 1070 ohci_softc_t *sc; 1071 int on; 1072 { 1073 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1074 if (on) { 1075 sc->sc_eintrs |= OHCI_RHSC; 1076 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1077 } else { 1078 sc->sc_eintrs &= ~OHCI_RHSC; 1079 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1080 } 1081 } 1082 1083 #ifdef OHCI_DEBUG 1084 char *ohci_cc_strs[] = { 1085 "NO_ERROR", 1086 "CRC", 1087 "BIT_STUFFING", 1088 "DATA_TOGGLE_MISMATCH", 1089 "STALL", 1090 "DEVICE_NOT_RESPONDING", 1091 "PID_CHECK_FAILURE", 1092 "UNEXPECTED_PID", 1093 "DATA_OVERRUN", 1094 "DATA_UNDERRUN", 1095 "BUFFER_OVERRUN", 1096 "BUFFER_UNDERRUN", 1097 "reserved", 1098 "reserved", 1099 "NOT_ACCESSED", 1100 "NOT_ACCESSED", 1101 }; 1102 #endif 1103 1104 void 1105 ohci_softintr(bus) 1106 struct usbd_bus *bus; 1107 { 1108 ohci_softc_t *sc = (ohci_softc_t *)bus; 1109 ohci_physaddr_t done; 1110 ohci_soft_td_t *std, *sdone, *stdnext; 1111 usbd_xfer_handle xfer; 1112 int len, cc, s; 1113 1114 sc->sc_bus.intr_context++; 1115 1116 s = splhardusb(); 1117 done = sc->sc_done; 1118 sc->sc_done = 0; 1119 splx(s); 1120 1121 DPRINTFN(10,("ohci_process_done: done=0x%08lx\n", (u_long)done)); 1122 1123 /* Reverse the done list. */ 1124 for (sdone = NULL; done != 0; done = LE(std->td.td_nexttd)) { 1125 std = ohci_hash_find_td(sc, done); 1126 std->dnext = sdone; 1127 sdone = std; 1128 } 1129 1130 #ifdef OHCI_DEBUG 1131 if (ohcidebug > 10) { 1132 DPRINTF(("ohci_process_done: TD done:\n")); 1133 ohci_dump_tds(sdone); 1134 } 1135 #endif 1136 1137 for (std = sdone; std; std = stdnext) { 1138 xfer = std->xfer; 1139 stdnext = std->dnext; 1140 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1141 std, xfer, xfer ? xfer->hcpriv : 0)); 1142 if (xfer == NULL) { 1143 /* xfer == NULL: There seems to be no xfer associated 1144 * with this TD. It is tailp that happened to end up on 1145 * the done queue. 1146 */ 1147 continue; 1148 } 1149 cc = OHCI_TD_GET_CC(LE(std->td.td_flags)); 1150 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1151 if (xfer->status == USBD_CANCELLED || 1152 xfer->status == USBD_TIMEOUT) { 1153 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1154 xfer)); 1155 /* Handled by abort routine. */ 1156 } else if (cc == OHCI_CC_NO_ERROR) { 1157 len = std->len; 1158 if (std->td.td_cbp != 0) 1159 len -= LE(std->td.td_be) - 1160 LE(std->td.td_cbp) + 1; 1161 if (std->flags & OHCI_ADD_LEN) 1162 xfer->actlen += len; 1163 if (std->flags & OHCI_CALL_DONE) { 1164 xfer->status = USBD_NORMAL_COMPLETION; 1165 usb_transfer_complete(xfer); 1166 } 1167 ohci_free_std(sc, std); 1168 } else { 1169 /* 1170 * Endpoint is halted. First unlink all the TDs 1171 * belonging to the failed transfer, and then restart 1172 * the endpoint. 1173 */ 1174 ohci_soft_td_t *p, *n; 1175 struct ohci_pipe *opipe = 1176 (struct ohci_pipe *)xfer->pipe; 1177 1178 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1179 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1180 ohci_cc_strs[OHCI_TD_GET_CC(LE(std->td.td_flags))])); 1181 1182 /* remove TDs */ 1183 for (p = std; p->xfer == xfer; p = n) { 1184 n = p->nexttd; 1185 ohci_free_std(sc, p); 1186 } 1187 1188 /* clear halt */ 1189 opipe->sed->ed.ed_headp = LE(p->physaddr); 1190 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1191 1192 if (cc == OHCI_CC_STALL) 1193 xfer->status = USBD_STALLED; 1194 else 1195 xfer->status = USBD_IOERROR; 1196 usb_transfer_complete(xfer); 1197 } 1198 } 1199 1200 sc->sc_bus.intr_context--; 1201 } 1202 1203 void 1204 ohci_device_ctrl_done(xfer) 1205 usbd_xfer_handle xfer; 1206 { 1207 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1208 1209 #ifdef DIAGNOSTIC 1210 if (!(xfer->rqflags & URQ_REQUEST)) { 1211 panic("ohci_ctrl_done: not a request\n"); 1212 } 1213 #endif 1214 xfer->hcpriv = NULL; 1215 } 1216 1217 void 1218 ohci_device_intr_done(xfer) 1219 usbd_xfer_handle xfer; 1220 { 1221 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1222 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1223 ohci_soft_ed_t *sed = opipe->sed; 1224 ohci_soft_td_t *data, *tail; 1225 1226 1227 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1228 xfer, xfer->actlen)); 1229 1230 xfer->hcpriv = NULL; 1231 1232 if (xfer->pipe->repeat) { 1233 data = opipe->tail.td; 1234 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1235 if (tail == NULL) { 1236 xfer->status = USBD_NOMEM; 1237 return; 1238 } 1239 tail->xfer = NULL; 1240 1241 data->td.td_flags = LE( 1242 OHCI_TD_IN | OHCI_TD_NOCC | 1243 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1244 if (xfer->flags & USBD_SHORT_XFER_OK) 1245 data->td.td_flags |= LE(OHCI_TD_R); 1246 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1247 data->nexttd = tail; 1248 data->td.td_nexttd = LE(tail->physaddr); 1249 data->td.td_be = LE(LE(data->td.td_cbp) + xfer->length - 1); 1250 data->len = xfer->length; 1251 data->xfer = xfer; 1252 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1253 xfer->hcpriv = data; 1254 xfer->actlen = 0; 1255 1256 sed->ed.ed_tailp = LE(tail->physaddr); 1257 opipe->tail.td = tail; 1258 } 1259 } 1260 1261 void 1262 ohci_device_bulk_done(xfer) 1263 usbd_xfer_handle xfer; 1264 { 1265 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1266 xfer, xfer->actlen)); 1267 1268 xfer->hcpriv = NULL; 1269 } 1270 1271 void 1272 ohci_rhsc(sc, xfer) 1273 ohci_softc_t *sc; 1274 usbd_xfer_handle xfer; 1275 { 1276 usbd_pipe_handle pipe; 1277 struct ohci_pipe *opipe; 1278 u_char *p; 1279 int i, m; 1280 int hstatus; 1281 1282 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1283 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1284 sc, xfer, hstatus)); 1285 1286 if (xfer == NULL) { 1287 /* Just ignore the change. */ 1288 return; 1289 } 1290 1291 pipe = xfer->pipe; 1292 opipe = (struct ohci_pipe *)pipe; 1293 1294 p = KERNADDR(&xfer->dmabuf); 1295 m = min(sc->sc_noport, xfer->length * 8 - 1); 1296 memset(p, 0, xfer->length); 1297 for (i = 1; i <= m; i++) { 1298 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1299 p[i/8] |= 1 << (i%8); 1300 } 1301 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1302 xfer->actlen = xfer->length; 1303 xfer->status = USBD_NORMAL_COMPLETION; 1304 1305 usb_transfer_complete(xfer); 1306 } 1307 1308 void 1309 ohci_root_intr_done(xfer) 1310 usbd_xfer_handle xfer; 1311 { 1312 xfer->hcpriv = NULL; 1313 } 1314 1315 void 1316 ohci_root_ctrl_done(xfer) 1317 usbd_xfer_handle xfer; 1318 { 1319 xfer->hcpriv = NULL; 1320 } 1321 1322 /* 1323 * Wait here until controller claims to have an interrupt. 1324 * Then call ohci_intr and return. Use timeout to avoid waiting 1325 * too long. 1326 */ 1327 void 1328 ohci_waitintr(sc, xfer) 1329 ohci_softc_t *sc; 1330 usbd_xfer_handle xfer; 1331 { 1332 int timo = xfer->timeout; 1333 int usecs; 1334 u_int32_t intrs; 1335 1336 xfer->status = USBD_IN_PROGRESS; 1337 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1338 usb_delay_ms(&sc->sc_bus, 1); 1339 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1340 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1341 #ifdef OHCI_DEBUG 1342 if (ohcidebug > 15) 1343 ohci_dumpregs(sc); 1344 #endif 1345 if (intrs) { 1346 ohci_intr1(sc); 1347 if (xfer->status != USBD_IN_PROGRESS) 1348 return; 1349 } 1350 } 1351 1352 /* Timeout */ 1353 DPRINTF(("ohci_waitintr: timeout\n")); 1354 xfer->status = USBD_TIMEOUT; 1355 usb_transfer_complete(xfer); 1356 /* XXX should free TD */ 1357 } 1358 1359 void 1360 ohci_poll(bus) 1361 struct usbd_bus *bus; 1362 { 1363 ohci_softc_t *sc = (ohci_softc_t *)bus; 1364 1365 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1366 ohci_intr1(sc); 1367 } 1368 1369 usbd_status 1370 ohci_device_request(xfer) 1371 usbd_xfer_handle xfer; 1372 { 1373 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1374 usb_device_request_t *req = &xfer->request; 1375 usbd_device_handle dev = opipe->pipe.device; 1376 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1377 int addr = dev->address; 1378 ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail; 1379 ohci_soft_ed_t *sed; 1380 int isread; 1381 int len; 1382 usbd_status err; 1383 int s; 1384 1385 isread = req->bmRequestType & UT_READ; 1386 len = UGETW(req->wLength); 1387 1388 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1389 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1390 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1391 UGETW(req->wIndex), len, addr, 1392 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1393 1394 setup = opipe->tail.td; 1395 stat = ohci_alloc_std(sc); 1396 if (stat == NULL) { 1397 err = USBD_NOMEM; 1398 goto bad1; 1399 } 1400 tail = ohci_alloc_std(sc); 1401 if (tail == NULL) { 1402 err = USBD_NOMEM; 1403 goto bad2; 1404 } 1405 tail->xfer = NULL; 1406 1407 sed = opipe->sed; 1408 opipe->u.ctl.length = len; 1409 1410 /* Update device address and length since they may have changed. */ 1411 /* XXX This only needs to be done once, but it's too early in open. */ 1412 sed->ed.ed_flags = LE( 1413 (LE(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1414 OHCI_ED_SET_FA(addr) | 1415 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1416 1417 /* Set up data transaction */ 1418 if (len != 0) { 1419 data = ohci_alloc_std(sc); 1420 if (data == NULL) { 1421 err = USBD_NOMEM; 1422 goto bad3; 1423 } 1424 data->td.td_flags = LE( 1425 (isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC | 1426 OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR | 1427 (xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0)); 1428 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1429 data->nexttd = stat; 1430 data->td.td_nexttd = LE(stat->physaddr); 1431 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 1432 data->len = len; 1433 data->xfer = xfer; 1434 data->flags = OHCI_ADD_LEN; 1435 1436 next = data; 1437 stat->flags = OHCI_CALL_DONE; 1438 } else { 1439 next = stat; 1440 /* XXX ADD_LEN? */ 1441 stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1442 } 1443 1444 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1445 1446 setup->td.td_flags = LE(OHCI_TD_SETUP | OHCI_TD_NOCC | 1447 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1448 setup->td.td_cbp = LE(DMAADDR(&opipe->u.ctl.reqdma)); 1449 setup->nexttd = next; 1450 setup->td.td_nexttd = LE(next->physaddr); 1451 setup->td.td_be = LE(LE(setup->td.td_cbp) + sizeof *req - 1); 1452 setup->len = 0; /* XXX The number of byte we count */ 1453 setup->xfer = xfer; 1454 setup->flags = 0; 1455 xfer->hcpriv = setup; 1456 1457 stat->td.td_flags = LE( 1458 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC | 1459 OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1460 stat->td.td_cbp = 0; 1461 stat->nexttd = tail; 1462 stat->td.td_nexttd = LE(tail->physaddr); 1463 stat->td.td_be = 0; 1464 stat->len = 0; 1465 stat->xfer = xfer; 1466 1467 #ifdef OHCI_DEBUG 1468 if (ohcidebug > 5) { 1469 DPRINTF(("ohci_device_request:\n")); 1470 ohci_dump_ed(sed); 1471 ohci_dump_tds(setup); 1472 } 1473 #endif 1474 1475 /* Insert ED in schedule */ 1476 s = splusb(); 1477 sed->ed.ed_tailp = LE(tail->physaddr); 1478 opipe->tail.td = tail; 1479 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1480 if (xfer->timeout && !sc->sc_bus.use_polling) { 1481 usb_timeout(ohci_timeout, xfer, 1482 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 1483 } 1484 splx(s); 1485 1486 #ifdef OHCI_DEBUG 1487 if (ohcidebug > 5) { 1488 usb_delay_ms(&sc->sc_bus, 5); 1489 DPRINTF(("ohci_device_request: status=%x\n", 1490 OREAD4(sc, OHCI_COMMAND_STATUS))); 1491 ohci_dump_ed(sed); 1492 ohci_dump_tds(setup); 1493 } 1494 #endif 1495 1496 return (USBD_NORMAL_COMPLETION); 1497 1498 bad3: 1499 ohci_free_std(sc, tail); 1500 bad2: 1501 ohci_free_std(sc, stat); 1502 bad1: 1503 return (err); 1504 } 1505 1506 /* 1507 * Add an ED to the schedule. Called at splusb(). 1508 */ 1509 void 1510 ohci_add_ed(sed, head) 1511 ohci_soft_ed_t *sed; 1512 ohci_soft_ed_t *head; 1513 { 1514 SPLUSBCHECK; 1515 sed->next = head->next; 1516 sed->ed.ed_nexted = head->ed.ed_nexted; 1517 head->next = sed; 1518 head->ed.ed_nexted = LE(sed->physaddr); 1519 } 1520 1521 /* 1522 * Remove an ED from the schedule. Called at splusb(). 1523 */ 1524 void 1525 ohci_rem_ed(sed, head) 1526 ohci_soft_ed_t *sed; 1527 ohci_soft_ed_t *head; 1528 { 1529 ohci_soft_ed_t *p; 1530 1531 SPLUSBCHECK; 1532 1533 /* XXX */ 1534 for (p = head; p == NULL && p->next != sed; p = p->next) 1535 ; 1536 if (p == NULL) 1537 panic("ohci_rem_ed: ED not found\n"); 1538 p->next = sed->next; 1539 p->ed.ed_nexted = sed->ed.ed_nexted; 1540 } 1541 1542 /* 1543 * When a transfer is completed the TD is added to the done queue by 1544 * the host controller. This queue is the processed by software. 1545 * Unfortunately the queue contains the physical address of the TD 1546 * and we have no simple way to translate this back to a kernel address. 1547 * To make the translation possible (and fast) we use a hash table of 1548 * TDs currently in the schedule. The physical address is used as the 1549 * hash value. 1550 */ 1551 1552 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1553 /* Called at splusb() */ 1554 void 1555 ohci_hash_add_td(sc, std) 1556 ohci_softc_t *sc; 1557 ohci_soft_td_t *std; 1558 { 1559 int h = HASH(std->physaddr); 1560 1561 SPLUSBCHECK; 1562 1563 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1564 } 1565 1566 /* Called at splusb() */ 1567 void 1568 ohci_hash_rem_td(sc, std) 1569 ohci_softc_t *sc; 1570 ohci_soft_td_t *std; 1571 { 1572 SPLUSBCHECK; 1573 1574 LIST_REMOVE(std, hnext); 1575 } 1576 1577 ohci_soft_td_t * 1578 ohci_hash_find_td(sc, a) 1579 ohci_softc_t *sc; 1580 ohci_physaddr_t a; 1581 { 1582 int h = HASH(a); 1583 ohci_soft_td_t *std; 1584 1585 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1586 std != NULL; 1587 std = LIST_NEXT(std, hnext)) 1588 if (std->physaddr == a) 1589 return (std); 1590 panic("ohci_hash_find_td: addr 0x%08lx not found\n", (u_long)a); 1591 } 1592 1593 void 1594 ohci_timeout(addr) 1595 void *addr; 1596 { 1597 usbd_xfer_handle xfer = addr; 1598 int s; 1599 1600 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1601 1602 s = splusb(); 1603 xfer->device->bus->intr_context++; 1604 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1605 xfer->device->bus->intr_context--; 1606 splx(s); 1607 } 1608 1609 #ifdef OHCI_DEBUG 1610 void 1611 ohci_dump_tds(std) 1612 ohci_soft_td_t *std; 1613 { 1614 for (; std; std = std->nexttd) 1615 ohci_dump_td(std); 1616 } 1617 1618 void 1619 ohci_dump_td(std) 1620 ohci_soft_td_t *std; 1621 { 1622 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1623 "nexttd=0x%08lx be=0x%08lx\n", 1624 std, (u_long)std->physaddr, 1625 (int)LE(std->td.td_flags), 1626 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1627 OHCI_TD_GET_DI(LE(std->td.td_flags)), 1628 OHCI_TD_GET_EC(LE(std->td.td_flags)), 1629 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1630 (u_long)LE(std->td.td_cbp), 1631 (u_long)LE(std->td.td_nexttd), (u_long)LE(std->td.td_be))); 1632 } 1633 1634 void 1635 ohci_dump_ed(sed) 1636 ohci_soft_ed_t *sed; 1637 { 1638 DPRINTF(("ED(%p) at %08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1639 "headp=%b nexted=0x%08lx\n", 1640 sed, (u_long)sed->physaddr, 1641 OHCI_ED_GET_FA(LE(sed->ed.ed_flags)), 1642 OHCI_ED_GET_EN(LE(sed->ed.ed_flags)), 1643 OHCI_ED_GET_MAXP(LE(sed->ed.ed_flags)), 1644 (int)LE(sed->ed.ed_flags), 1645 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1646 (u_long)LE(sed->ed.ed_tailp), 1647 (u_long)LE(sed->ed.ed_headp), 1648 "\20\1HALT\2CARRY", 1649 (u_long)LE(sed->ed.ed_nexted))); 1650 } 1651 #endif 1652 1653 usbd_status 1654 ohci_open(pipe) 1655 usbd_pipe_handle pipe; 1656 { 1657 usbd_device_handle dev = pipe->device; 1658 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1659 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1660 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1661 u_int8_t addr = dev->address; 1662 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1663 ohci_soft_ed_t *sed; 1664 ohci_soft_td_t *std; 1665 ohci_soft_itd_t *sitd; 1666 ohci_physaddr_t tdphys; 1667 u_int32_t fmt; 1668 usbd_status err; 1669 int s; 1670 int ival; 1671 1672 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1673 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1674 if (addr == sc->sc_addr) { 1675 switch (ed->bEndpointAddress) { 1676 case USB_CONTROL_ENDPOINT: 1677 pipe->methods = &ohci_root_ctrl_methods; 1678 break; 1679 case UE_DIR_IN | OHCI_INTR_ENDPT: 1680 pipe->methods = &ohci_root_intr_methods; 1681 break; 1682 default: 1683 return (USBD_INVAL); 1684 } 1685 } else { 1686 sed = ohci_alloc_sed(sc); 1687 if (sed == NULL) 1688 goto bad0; 1689 opipe->sed = sed; 1690 if (xfertype == UE_ISOCHRONOUS) { 1691 sitd = ohci_alloc_sitd(sc); 1692 if (sitd == NULL) { 1693 ohci_free_sitd(sc, sitd); 1694 goto bad1; 1695 } 1696 opipe->tail.itd = sitd; 1697 tdphys = LE(sitd->physaddr); 1698 fmt = OHCI_ED_FORMAT_ISO; 1699 } else { 1700 std = ohci_alloc_std(sc); 1701 if (std == NULL) { 1702 ohci_free_std(sc, std); 1703 goto bad1; 1704 } 1705 opipe->tail.td = std; 1706 tdphys = LE(std->physaddr); 1707 fmt = OHCI_ED_FORMAT_GEN; 1708 } 1709 sed->ed.ed_flags = LE( 1710 OHCI_ED_SET_FA(addr) | 1711 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1712 OHCI_ED_DIR_TD | 1713 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1714 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1715 sed->ed.ed_headp = sed->ed.ed_tailp = tdphys; 1716 1717 switch (xfertype) { 1718 case UE_CONTROL: 1719 pipe->methods = &ohci_device_ctrl_methods; 1720 err = usb_allocmem(&sc->sc_bus, 1721 sizeof(usb_device_request_t), 1722 0, &opipe->u.ctl.reqdma); 1723 if (err) 1724 goto bad; 1725 s = splusb(); 1726 ohci_add_ed(sed, sc->sc_ctrl_head); 1727 splx(s); 1728 break; 1729 case UE_INTERRUPT: 1730 pipe->methods = &ohci_device_intr_methods; 1731 ival = pipe->interval; 1732 if (ival == USBD_DEFAULT_INTERVAL) 1733 ival = ed->bInterval; 1734 return (ohci_device_setintr(sc, opipe, ival)); 1735 case UE_ISOCHRONOUS: 1736 pipe->methods = &ohci_device_isoc_methods; 1737 return (ohci_setup_isoc(pipe)); 1738 case UE_BULK: 1739 pipe->methods = &ohci_device_bulk_methods; 1740 s = splusb(); 1741 ohci_add_ed(sed, sc->sc_bulk_head); 1742 splx(s); 1743 break; 1744 } 1745 } 1746 return (USBD_NORMAL_COMPLETION); 1747 1748 bad: 1749 ohci_free_std(sc, std); 1750 bad1: 1751 ohci_free_sed(sc, sed); 1752 bad0: 1753 return (USBD_NOMEM); 1754 1755 } 1756 1757 /* 1758 * Close a reqular pipe. 1759 * Assumes that there are no pending transactions. 1760 */ 1761 void 1762 ohci_close_pipe(pipe, head) 1763 usbd_pipe_handle pipe; 1764 ohci_soft_ed_t *head; 1765 { 1766 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1767 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1768 ohci_soft_ed_t *sed = opipe->sed; 1769 int s; 1770 1771 s = splusb(); 1772 #ifdef DIAGNOSTIC 1773 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 1774 if ((sed->ed.ed_tailp & LE(OHCI_HEADMASK)) != 1775 (sed->ed.ed_headp & LE(OHCI_HEADMASK))) { 1776 ohci_physaddr_t td = sed->ed.ed_headp; 1777 ohci_soft_td_t *std; 1778 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1779 std != NULL; 1780 std = LIST_NEXT(std, hnext)) 1781 if (std->physaddr == td) 1782 break; 1783 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1784 "tl=0x%x pipe=%p, std=%p\n", sed, 1785 (int)LE(sed->ed.ed_headp), (int)LE(sed->ed.ed_tailp), 1786 pipe, std); 1787 usb_delay_ms(&sc->sc_bus, 2); 1788 if ((sed->ed.ed_tailp & LE(OHCI_HEADMASK)) != 1789 (sed->ed.ed_headp & LE(OHCI_HEADMASK))) 1790 printf("ohci_close_pipe: pipe still not empty\n"); 1791 } 1792 #endif 1793 ohci_rem_ed(sed, head); 1794 splx(s); 1795 ohci_free_sed(sc, opipe->sed); 1796 } 1797 1798 /* 1799 * Abort a device request. 1800 * If this routine is called at splusb() it guarantees that the request 1801 * will be removed from the hardware scheduling and that the callback 1802 * for it will be called with USBD_CANCELLED status. 1803 * It's impossible to guarantee that the requested transfer will not 1804 * have happened since the hardware runs concurrently. 1805 * If the transaction has already happened we rely on the ordinary 1806 * interrupt processing to process it. 1807 */ 1808 void 1809 ohci_abort_xfer(xfer, status) 1810 usbd_xfer_handle xfer; 1811 usbd_status status; 1812 { 1813 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1814 ohci_soft_ed_t *sed; 1815 1816 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1817 1818 xfer->status = status; 1819 1820 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1821 1822 sed = opipe->sed; 1823 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1824 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); /* force hardware skip */ 1825 1826 #if 1 1827 if (xfer->device->bus->intr_context) { 1828 /* We have no process context, so we can't use tsleep(). */ 1829 timeout(ohci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1830 } else { 1831 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1832 KASSERT(intr_nesting_level == 0, 1833 ("ohci_abort_req in interrupt context")); 1834 #endif 1835 usb_delay_ms(opipe->pipe.device->bus, 1); 1836 ohci_abort_xfer_end(xfer); 1837 } 1838 #else 1839 delay(1000); 1840 ohci_abort_xfer_end(xfer); 1841 #endif 1842 } 1843 1844 void 1845 ohci_abort_xfer_end(v) 1846 void *v; 1847 { 1848 usbd_xfer_handle xfer = v; 1849 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1850 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1851 ohci_soft_ed_t *sed; 1852 ohci_soft_td_t *p, *n; 1853 int s; 1854 1855 s = splusb(); 1856 1857 p = xfer->hcpriv; 1858 #ifdef DIAGNOSTIC 1859 if (p == NULL) { 1860 printf("ohci_abort_xfer: hcpriv==0\n"); 1861 return; 1862 } 1863 #endif 1864 for (; p->xfer == xfer; p = n) { 1865 n = p->nexttd; 1866 ohci_free_std(sc, p); 1867 } 1868 1869 sed = opipe->sed; 1870 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 1871 (int)LE(p->physaddr), (int)LE(sed->ed.ed_tailp))); 1872 sed->ed.ed_headp = p->physaddr; /* unlink TDs */ 1873 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); /* remove hardware skip */ 1874 1875 usb_transfer_complete(xfer); 1876 1877 splx(s); 1878 } 1879 1880 /* 1881 * Data structures and routines to emulate the root hub. 1882 */ 1883 static usb_device_descriptor_t ohci_devd = { 1884 USB_DEVICE_DESCRIPTOR_SIZE, 1885 UDESC_DEVICE, /* type */ 1886 {0x00, 0x01}, /* USB version */ 1887 UCLASS_HUB, /* class */ 1888 USUBCLASS_HUB, /* subclass */ 1889 0, /* protocol */ 1890 64, /* max packet */ 1891 {0},{0},{0x00,0x01}, /* device id */ 1892 1,2,0, /* string indicies */ 1893 1 /* # of configurations */ 1894 }; 1895 1896 static usb_config_descriptor_t ohci_confd = { 1897 USB_CONFIG_DESCRIPTOR_SIZE, 1898 UDESC_CONFIG, 1899 {USB_CONFIG_DESCRIPTOR_SIZE + 1900 USB_INTERFACE_DESCRIPTOR_SIZE + 1901 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1902 1, 1903 1, 1904 0, 1905 UC_SELF_POWERED, 1906 0 /* max power */ 1907 }; 1908 1909 static usb_interface_descriptor_t ohci_ifcd = { 1910 USB_INTERFACE_DESCRIPTOR_SIZE, 1911 UDESC_INTERFACE, 1912 0, 1913 0, 1914 1, 1915 UCLASS_HUB, 1916 USUBCLASS_HUB, 1917 0, 1918 0 1919 }; 1920 1921 static usb_endpoint_descriptor_t ohci_endpd = { 1922 USB_ENDPOINT_DESCRIPTOR_SIZE, 1923 UDESC_ENDPOINT, 1924 UE_DIR_IN | OHCI_INTR_ENDPT, 1925 UE_INTERRUPT, 1926 {8, 0}, /* max packet */ 1927 255 1928 }; 1929 1930 static usb_hub_descriptor_t ohci_hubd = { 1931 USB_HUB_DESCRIPTOR_SIZE, 1932 UDESC_HUB, 1933 0, 1934 {0,0}, 1935 0, 1936 0, 1937 {0}, 1938 }; 1939 1940 static int 1941 ohci_str(p, l, s) 1942 usb_string_descriptor_t *p; 1943 int l; 1944 char *s; 1945 { 1946 int i; 1947 1948 if (l == 0) 1949 return (0); 1950 p->bLength = 2 * strlen(s) + 2; 1951 if (l == 1) 1952 return (1); 1953 p->bDescriptorType = UDESC_STRING; 1954 l -= 2; 1955 for (i = 0; s[i] && l > 1; i++, l -= 2) 1956 USETW2(p->bString[i], 0, s[i]); 1957 return (2*i+2); 1958 } 1959 1960 /* 1961 * Simulate a hardware hub by handling all the necessary requests. 1962 */ 1963 static usbd_status 1964 ohci_root_ctrl_transfer(xfer) 1965 usbd_xfer_handle xfer; 1966 { 1967 usbd_status err; 1968 1969 /* Insert last in queue. */ 1970 err = usb_insert_transfer(xfer); 1971 if (err) 1972 return (err); 1973 1974 /* Pipe isn't running, start first */ 1975 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1976 } 1977 1978 static usbd_status 1979 ohci_root_ctrl_start(xfer) 1980 usbd_xfer_handle xfer; 1981 { 1982 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 1983 usb_device_request_t *req; 1984 void *buf = NULL; 1985 int port, i; 1986 int s, len, value, index, l, totlen = 0; 1987 usb_port_status_t ps; 1988 usb_hub_descriptor_t hubd; 1989 usbd_status err; 1990 u_int32_t v; 1991 1992 #ifdef DIAGNOSTIC 1993 if (!(xfer->rqflags & URQ_REQUEST)) 1994 /* XXX panic */ 1995 return (USBD_INVAL); 1996 #endif 1997 req = &xfer->request; 1998 1999 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2000 req->bmRequestType, req->bRequest)); 2001 2002 len = UGETW(req->wLength); 2003 value = UGETW(req->wValue); 2004 index = UGETW(req->wIndex); 2005 2006 if (len != 0) 2007 buf = KERNADDR(&xfer->dmabuf); 2008 2009 #define C(x,y) ((x) | ((y) << 8)) 2010 switch(C(req->bRequest, req->bmRequestType)) { 2011 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2012 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2013 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2014 /* 2015 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2016 * for the integrated root hub. 2017 */ 2018 break; 2019 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2020 if (len > 0) { 2021 *(u_int8_t *)buf = sc->sc_conf; 2022 totlen = 1; 2023 } 2024 break; 2025 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2026 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2027 switch(value >> 8) { 2028 case UDESC_DEVICE: 2029 if ((value & 0xff) != 0) { 2030 err = USBD_IOERROR; 2031 goto ret; 2032 } 2033 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2034 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2035 memcpy(buf, &ohci_devd, l); 2036 break; 2037 case UDESC_CONFIG: 2038 if ((value & 0xff) != 0) { 2039 err = USBD_IOERROR; 2040 goto ret; 2041 } 2042 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2043 memcpy(buf, &ohci_confd, l); 2044 buf = (char *)buf + l; 2045 len -= l; 2046 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2047 totlen += l; 2048 memcpy(buf, &ohci_ifcd, l); 2049 buf = (char *)buf + l; 2050 len -= l; 2051 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2052 totlen += l; 2053 memcpy(buf, &ohci_endpd, l); 2054 break; 2055 case UDESC_STRING: 2056 if (len == 0) 2057 break; 2058 *(u_int8_t *)buf = 0; 2059 totlen = 1; 2060 switch (value & 0xff) { 2061 case 1: /* Vendor */ 2062 totlen = ohci_str(buf, len, sc->sc_vendor); 2063 break; 2064 case 2: /* Product */ 2065 totlen = ohci_str(buf, len, "OHCI root hub"); 2066 break; 2067 } 2068 break; 2069 default: 2070 err = USBD_IOERROR; 2071 goto ret; 2072 } 2073 break; 2074 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2075 if (len > 0) { 2076 *(u_int8_t *)buf = 0; 2077 totlen = 1; 2078 } 2079 break; 2080 case C(UR_GET_STATUS, UT_READ_DEVICE): 2081 if (len > 1) { 2082 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2083 totlen = 2; 2084 } 2085 break; 2086 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2087 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2088 if (len > 1) { 2089 USETW(((usb_status_t *)buf)->wStatus, 0); 2090 totlen = 2; 2091 } 2092 break; 2093 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2094 if (value >= USB_MAX_DEVICES) { 2095 err = USBD_IOERROR; 2096 goto ret; 2097 } 2098 sc->sc_addr = value; 2099 break; 2100 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2101 if (value != 0 && value != 1) { 2102 err = USBD_IOERROR; 2103 goto ret; 2104 } 2105 sc->sc_conf = value; 2106 break; 2107 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2108 break; 2109 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2110 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2111 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2112 err = USBD_IOERROR; 2113 goto ret; 2114 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2115 break; 2116 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2117 break; 2118 /* Hub requests */ 2119 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2120 break; 2121 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2122 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2123 "port=%d feature=%d\n", 2124 index, value)); 2125 if (index < 1 || index > sc->sc_noport) { 2126 err = USBD_IOERROR; 2127 goto ret; 2128 } 2129 port = OHCI_RH_PORT_STATUS(index); 2130 switch(value) { 2131 case UHF_PORT_ENABLE: 2132 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2133 break; 2134 case UHF_PORT_SUSPEND: 2135 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2136 break; 2137 case UHF_PORT_POWER: 2138 OWRITE4(sc, port, UPS_LOW_SPEED); 2139 break; 2140 case UHF_C_PORT_CONNECTION: 2141 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2142 break; 2143 case UHF_C_PORT_ENABLE: 2144 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2145 break; 2146 case UHF_C_PORT_SUSPEND: 2147 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2148 break; 2149 case UHF_C_PORT_OVER_CURRENT: 2150 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2151 break; 2152 case UHF_C_PORT_RESET: 2153 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2154 break; 2155 default: 2156 err = USBD_IOERROR; 2157 goto ret; 2158 } 2159 switch(value) { 2160 case UHF_C_PORT_CONNECTION: 2161 case UHF_C_PORT_ENABLE: 2162 case UHF_C_PORT_SUSPEND: 2163 case UHF_C_PORT_OVER_CURRENT: 2164 case UHF_C_PORT_RESET: 2165 /* Enable RHSC interrupt if condition is cleared. */ 2166 if ((OREAD4(sc, port) >> 16) == 0) 2167 ohci_rhsc_able(sc, 1); 2168 break; 2169 default: 2170 break; 2171 } 2172 break; 2173 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2174 if (value != 0) { 2175 err = USBD_IOERROR; 2176 goto ret; 2177 } 2178 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2179 hubd = ohci_hubd; 2180 hubd.bNbrPorts = sc->sc_noport; 2181 USETW(hubd.wHubCharacteristics, 2182 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2183 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2184 /* XXX overcurrent */ 2185 ); 2186 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2187 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2188 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2189 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2190 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2191 l = min(len, hubd.bDescLength); 2192 totlen = l; 2193 memcpy(buf, &hubd, l); 2194 break; 2195 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2196 if (len != 4) { 2197 err = USBD_IOERROR; 2198 goto ret; 2199 } 2200 memset(buf, 0, len); /* ? XXX */ 2201 totlen = len; 2202 break; 2203 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2204 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2205 index)); 2206 if (index < 1 || index > sc->sc_noport) { 2207 err = USBD_IOERROR; 2208 goto ret; 2209 } 2210 if (len != 4) { 2211 err = USBD_IOERROR; 2212 goto ret; 2213 } 2214 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2215 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2216 v)); 2217 USETW(ps.wPortStatus, v); 2218 USETW(ps.wPortChange, v >> 16); 2219 l = min(len, sizeof ps); 2220 memcpy(buf, &ps, l); 2221 totlen = l; 2222 break; 2223 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2224 err = USBD_IOERROR; 2225 goto ret; 2226 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2227 break; 2228 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2229 if (index < 1 || index > sc->sc_noport) { 2230 err = USBD_IOERROR; 2231 goto ret; 2232 } 2233 port = OHCI_RH_PORT_STATUS(index); 2234 switch(value) { 2235 case UHF_PORT_ENABLE: 2236 OWRITE4(sc, port, UPS_PORT_ENABLED); 2237 break; 2238 case UHF_PORT_SUSPEND: 2239 OWRITE4(sc, port, UPS_SUSPEND); 2240 break; 2241 case UHF_PORT_RESET: 2242 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2243 index)); 2244 OWRITE4(sc, port, UPS_RESET); 2245 for (i = 0; i < 10; i++) { 2246 usb_delay_ms(&sc->sc_bus, 10); 2247 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2248 break; 2249 } 2250 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2251 index, OREAD4(sc, port))); 2252 break; 2253 case UHF_PORT_POWER: 2254 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2255 "%d\n", index)); 2256 OWRITE4(sc, port, UPS_PORT_POWER); 2257 break; 2258 default: 2259 err = USBD_IOERROR; 2260 goto ret; 2261 } 2262 break; 2263 default: 2264 err = USBD_IOERROR; 2265 goto ret; 2266 } 2267 xfer->actlen = totlen; 2268 err = USBD_NORMAL_COMPLETION; 2269 ret: 2270 xfer->status = err; 2271 s = splusb(); 2272 usb_transfer_complete(xfer); 2273 splx(s); 2274 return (USBD_IN_PROGRESS); 2275 } 2276 2277 /* Abort a root control request. */ 2278 static void 2279 ohci_root_ctrl_abort(xfer) 2280 usbd_xfer_handle xfer; 2281 { 2282 /* Nothing to do, all transfers are synchronous. */ 2283 } 2284 2285 /* Close the root pipe. */ 2286 static void 2287 ohci_root_ctrl_close(pipe) 2288 usbd_pipe_handle pipe; 2289 { 2290 DPRINTF(("ohci_root_ctrl_close\n")); 2291 /* Nothing to do. */ 2292 } 2293 2294 static usbd_status 2295 ohci_root_intr_transfer(xfer) 2296 usbd_xfer_handle xfer; 2297 { 2298 usbd_status err; 2299 2300 /* Insert last in queue. */ 2301 err = usb_insert_transfer(xfer); 2302 if (err) 2303 return (err); 2304 2305 /* Pipe isn't running, start first */ 2306 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2307 } 2308 2309 static usbd_status 2310 ohci_root_intr_start(xfer) 2311 usbd_xfer_handle xfer; 2312 { 2313 usbd_pipe_handle pipe = xfer->pipe; 2314 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2315 2316 sc->sc_intrxfer = xfer; 2317 2318 return (USBD_IN_PROGRESS); 2319 } 2320 2321 /* Abort a root interrupt request. */ 2322 static void 2323 ohci_root_intr_abort(xfer) 2324 usbd_xfer_handle xfer; 2325 { 2326 int s; 2327 2328 if (xfer->pipe->intrxfer == xfer) { 2329 DPRINTF(("ohci_root_intr_abort: remove\n")); 2330 xfer->pipe->intrxfer = NULL; 2331 } 2332 xfer->status = USBD_CANCELLED; 2333 s = splusb(); 2334 usb_transfer_complete(xfer); 2335 splx(s); 2336 } 2337 2338 /* Close the root pipe. */ 2339 static void 2340 ohci_root_intr_close(pipe) 2341 usbd_pipe_handle pipe; 2342 { 2343 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2344 2345 DPRINTF(("ohci_root_intr_close\n")); 2346 2347 sc->sc_intrxfer = NULL; 2348 } 2349 2350 /************************/ 2351 2352 static usbd_status 2353 ohci_device_ctrl_transfer(xfer) 2354 usbd_xfer_handle xfer; 2355 { 2356 usbd_status err; 2357 2358 /* Insert last in queue. */ 2359 err = usb_insert_transfer(xfer); 2360 if (err) 2361 return (err); 2362 2363 /* Pipe isn't running, start first */ 2364 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2365 } 2366 2367 static usbd_status 2368 ohci_device_ctrl_start(xfer) 2369 usbd_xfer_handle xfer; 2370 { 2371 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2372 usbd_status err; 2373 2374 #ifdef DIAGNOSTIC 2375 if (!(xfer->rqflags & URQ_REQUEST)) { 2376 /* XXX panic */ 2377 printf("ohci_device_ctrl_transfer: not a request\n"); 2378 return (USBD_INVAL); 2379 } 2380 #endif 2381 2382 err = ohci_device_request(xfer); 2383 if (err) 2384 return (err); 2385 2386 if (sc->sc_bus.use_polling) 2387 ohci_waitintr(sc, xfer); 2388 return (USBD_IN_PROGRESS); 2389 } 2390 2391 /* Abort a device control request. */ 2392 static void 2393 ohci_device_ctrl_abort(xfer) 2394 usbd_xfer_handle xfer; 2395 { 2396 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2397 ohci_abort_xfer(xfer, USBD_CANCELLED); 2398 } 2399 2400 /* Close a device control pipe. */ 2401 static void 2402 ohci_device_ctrl_close(pipe) 2403 usbd_pipe_handle pipe; 2404 { 2405 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2406 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2407 2408 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2409 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2410 ohci_free_std(sc, opipe->tail.td); 2411 } 2412 2413 /************************/ 2414 2415 static void 2416 ohci_device_clear_toggle(pipe) 2417 usbd_pipe_handle pipe; 2418 { 2419 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2420 2421 opipe->sed->ed.ed_headp &= LE(~OHCI_TOGGLECARRY); 2422 } 2423 2424 static void 2425 ohci_noop(pipe) 2426 usbd_pipe_handle pipe; 2427 { 2428 } 2429 2430 static usbd_status 2431 ohci_device_bulk_transfer(xfer) 2432 usbd_xfer_handle xfer; 2433 { 2434 usbd_status err; 2435 2436 /* Insert last in queue. */ 2437 err = usb_insert_transfer(xfer); 2438 if (err) 2439 return (err); 2440 2441 /* Pipe isn't running, start first */ 2442 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2443 } 2444 2445 static usbd_status 2446 ohci_device_bulk_start(xfer) 2447 usbd_xfer_handle xfer; 2448 { 2449 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2450 usbd_device_handle dev = opipe->pipe.device; 2451 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2452 int addr = dev->address; 2453 ohci_soft_td_t *data, *tail, *tdp; 2454 ohci_soft_ed_t *sed; 2455 int s, len, isread, endpt; 2456 usbd_status err; 2457 2458 #ifdef DIAGNOSTIC 2459 if (xfer->rqflags & URQ_REQUEST) { 2460 /* XXX panic */ 2461 printf("ohci_device_bulk_start: a request\n"); 2462 return (USBD_INVAL); 2463 } 2464 #endif 2465 2466 len = xfer->length; 2467 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2468 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2469 sed = opipe->sed; 2470 2471 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2472 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2473 endpt)); 2474 2475 opipe->u.bulk.isread = isread; 2476 opipe->u.bulk.length = len; 2477 2478 /* Update device address */ 2479 sed->ed.ed_flags = LE( 2480 (LE(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2481 OHCI_ED_SET_FA(addr)); 2482 2483 /* Allocate a chain of new TDs (including a new tail). */ 2484 data = opipe->tail.td; 2485 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags, 2486 &xfer->dmabuf, data, &tail); 2487 if (err) 2488 return (err); 2489 2490 tail->xfer = NULL; 2491 xfer->hcpriv = data; 2492 2493 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2494 "td_cbp=0x%08x td_be=0x%08x\n", 2495 (int)LE(sed->ed.ed_flags), (int)LE(data->td.td_flags), 2496 (int)LE(data->td.td_cbp), (int)LE(data->td.td_be))); 2497 2498 #ifdef OHCI_DEBUG 2499 if (ohcidebug > 4) { 2500 ohci_dump_ed(sed); 2501 ohci_dump_tds(data); 2502 } 2503 #endif 2504 2505 /* Insert ED in schedule */ 2506 s = splusb(); 2507 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2508 tdp->xfer = xfer; 2509 } 2510 sed->ed.ed_tailp = LE(tail->physaddr); 2511 opipe->tail.td = tail; 2512 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2513 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2514 if (xfer->timeout && !sc->sc_bus.use_polling) { 2515 usb_timeout(ohci_timeout, xfer, 2516 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 2517 } 2518 2519 #if 0 2520 /* This goes wrong if we are too slow. */ 2521 if (ohcidebug > 5) { 2522 usb_delay_ms(&sc->sc_bus, 5); 2523 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2524 OREAD4(sc, OHCI_COMMAND_STATUS))); 2525 ohci_dump_ed(sed); 2526 ohci_dump_tds(data); 2527 } 2528 #endif 2529 2530 splx(s); 2531 2532 return (USBD_IN_PROGRESS); 2533 } 2534 2535 static void 2536 ohci_device_bulk_abort(xfer) 2537 usbd_xfer_handle xfer; 2538 { 2539 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2540 ohci_abort_xfer(xfer, USBD_CANCELLED); 2541 } 2542 2543 /* 2544 * Close a device bulk pipe. 2545 */ 2546 static void 2547 ohci_device_bulk_close(pipe) 2548 usbd_pipe_handle pipe; 2549 { 2550 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2551 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2552 2553 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2554 ohci_close_pipe(pipe, sc->sc_bulk_head); 2555 ohci_free_std(sc, opipe->tail.td); 2556 } 2557 2558 /************************/ 2559 2560 static usbd_status 2561 ohci_device_intr_transfer(xfer) 2562 usbd_xfer_handle xfer; 2563 { 2564 usbd_status err; 2565 2566 /* Insert last in queue. */ 2567 err = usb_insert_transfer(xfer); 2568 if (err) 2569 return (err); 2570 2571 /* Pipe isn't running, start first */ 2572 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2573 } 2574 2575 static usbd_status 2576 ohci_device_intr_start(xfer) 2577 usbd_xfer_handle xfer; 2578 { 2579 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2580 usbd_device_handle dev = opipe->pipe.device; 2581 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2582 ohci_soft_ed_t *sed = opipe->sed; 2583 ohci_soft_td_t *data, *tail; 2584 int len; 2585 int s; 2586 2587 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2588 "flags=%d priv=%p\n", 2589 xfer, xfer->length, xfer->flags, xfer->priv)); 2590 2591 #ifdef DIAGNOSTIC 2592 if (xfer->rqflags & URQ_REQUEST) 2593 panic("ohci_device_intr_transfer: a request\n"); 2594 #endif 2595 2596 len = xfer->length; 2597 2598 data = opipe->tail.td; 2599 tail = ohci_alloc_std(sc); 2600 if (tail == NULL) 2601 return (USBD_NOMEM); 2602 tail->xfer = NULL; 2603 2604 data->td.td_flags = LE( 2605 OHCI_TD_IN | OHCI_TD_NOCC | 2606 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2607 if (xfer->flags & USBD_SHORT_XFER_OK) 2608 data->td.td_flags |= LE(OHCI_TD_R); 2609 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 2610 data->nexttd = tail; 2611 data->td.td_nexttd = LE(tail->physaddr); 2612 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 2613 data->len = len; 2614 data->xfer = xfer; 2615 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2616 xfer->hcpriv = data; 2617 2618 #ifdef OHCI_DEBUG 2619 if (ohcidebug > 5) { 2620 DPRINTF(("ohci_device_intr_transfer:\n")); 2621 ohci_dump_ed(sed); 2622 ohci_dump_tds(data); 2623 } 2624 #endif 2625 2626 /* Insert ED in schedule */ 2627 s = splusb(); 2628 sed->ed.ed_tailp = LE(tail->physaddr); 2629 opipe->tail.td = tail; 2630 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2631 2632 #if 0 2633 /* 2634 * This goes horribly wrong, printing thousands of descriptors, 2635 * because false references are followed due to the fact that the 2636 * TD is gone. 2637 */ 2638 if (ohcidebug > 5) { 2639 usb_delay_ms(&sc->sc_bus, 5); 2640 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2641 OREAD4(sc, OHCI_COMMAND_STATUS))); 2642 ohci_dump_ed(sed); 2643 ohci_dump_tds(data); 2644 } 2645 #endif 2646 splx(s); 2647 2648 return (USBD_IN_PROGRESS); 2649 } 2650 2651 /* Abort a device control request. */ 2652 static void 2653 ohci_device_intr_abort(xfer) 2654 usbd_xfer_handle xfer; 2655 { 2656 if (xfer->pipe->intrxfer == xfer) { 2657 DPRINTF(("ohci_device_intr_abort: remove\n")); 2658 xfer->pipe->intrxfer = NULL; 2659 } 2660 ohci_abort_xfer(xfer, USBD_CANCELLED); 2661 } 2662 2663 /* Close a device interrupt pipe. */ 2664 static void 2665 ohci_device_intr_close(pipe) 2666 usbd_pipe_handle pipe; 2667 { 2668 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2669 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2670 int nslots = opipe->u.intr.nslots; 2671 int pos = opipe->u.intr.pos; 2672 int j; 2673 ohci_soft_ed_t *p, *sed = opipe->sed; 2674 int s; 2675 2676 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2677 pipe, nslots, pos)); 2678 s = splusb(); 2679 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 2680 if ((sed->ed.ed_tailp & LE(OHCI_HEADMASK)) != 2681 (sed->ed.ed_headp & LE(OHCI_HEADMASK))) 2682 usb_delay_ms(&sc->sc_bus, 2); 2683 2684 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2685 ; 2686 #ifdef DIAGNOSTIC 2687 if (p == NULL) 2688 panic("ohci_device_intr_close: ED not found\n"); 2689 #endif 2690 p->next = sed->next; 2691 p->ed.ed_nexted = sed->ed.ed_nexted; 2692 splx(s); 2693 2694 for (j = 0; j < nslots; j++) 2695 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2696 2697 ohci_free_std(sc, opipe->tail.td); 2698 ohci_free_sed(sc, opipe->sed); 2699 } 2700 2701 static usbd_status 2702 ohci_device_setintr(sc, opipe, ival) 2703 ohci_softc_t *sc; 2704 struct ohci_pipe *opipe; 2705 int ival; 2706 { 2707 int i, j, s, best; 2708 u_int npoll, slow, shigh, nslots; 2709 u_int bestbw, bw; 2710 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2711 2712 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2713 if (ival == 0) { 2714 printf("ohci_setintr: 0 interval\n"); 2715 return (USBD_INVAL); 2716 } 2717 2718 npoll = OHCI_NO_INTRS; 2719 while (npoll > ival) 2720 npoll /= 2; 2721 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2722 2723 /* 2724 * We now know which level in the tree the ED must go into. 2725 * Figure out which slot has most bandwidth left over. 2726 * Slots to examine: 2727 * npoll 2728 * 1 0 2729 * 2 1 2 2730 * 4 3 4 5 6 2731 * 8 7 8 9 10 11 12 13 14 2732 * N (N-1) .. (N-1+N-1) 2733 */ 2734 slow = npoll-1; 2735 shigh = slow + npoll; 2736 nslots = OHCI_NO_INTRS / npoll; 2737 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2738 bw = 0; 2739 for (j = 0; j < nslots; j++) 2740 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2741 if (bw < bestbw) { 2742 best = i; 2743 bestbw = bw; 2744 } 2745 } 2746 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2747 best, slow, shigh, bestbw)); 2748 2749 s = splusb(); 2750 hsed = sc->sc_eds[best]; 2751 sed->next = hsed->next; 2752 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2753 hsed->next = sed; 2754 hsed->ed.ed_nexted = LE(sed->physaddr); 2755 splx(s); 2756 2757 for (j = 0; j < nslots; j++) 2758 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2759 opipe->u.intr.nslots = nslots; 2760 opipe->u.intr.pos = best; 2761 2762 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2763 return (USBD_NORMAL_COMPLETION); 2764 } 2765 2766 /***********************/ 2767 2768 usbd_status 2769 ohci_device_isoc_transfer(xfer) 2770 usbd_xfer_handle xfer; 2771 { 2772 usbd_status err; 2773 2774 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2775 2776 /* Put it on our queue, */ 2777 err = usb_insert_transfer(xfer); 2778 2779 /* bail out on error, */ 2780 if (err && err != USBD_IN_PROGRESS) 2781 return (err); 2782 2783 /* XXX should check inuse here */ 2784 2785 /* insert into schedule, */ 2786 ohci_device_isoc_enter(xfer); 2787 2788 /* and put on interrupt list if the pipe wasn't running */ 2789 if (!err) 2790 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2791 2792 return (err); 2793 } 2794 2795 void 2796 ohci_device_isoc_enter(xfer) 2797 usbd_xfer_handle xfer; 2798 { 2799 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2800 usbd_device_handle dev = opipe->pipe.device; 2801 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2802 ohci_soft_ed_t *sed = opipe->sed; 2803 struct iso *iso = &opipe->u.iso; 2804 ohci_soft_itd_t *sitd, *nsitd; 2805 ohci_physaddr_t buf, offs; 2806 int i, ncur, nframes; 2807 int ncross; 2808 int s; 2809 2810 s = splusb(); 2811 sitd = opipe->tail.itd; 2812 buf = DMAADDR(&xfer->dmabuf); 2813 sitd->itd.itd_bp0 = LE(buf & OHCI_ITD_PAGE_MASK); 2814 nframes = xfer->nframes; 2815 offs = buf & OHCI_ITD_OFFSET_MASK; 2816 for (i = ncur = 0; i < nframes; i++, ncur++) { 2817 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2818 ncross > 1) { /* too many page crossings */ 2819 2820 nsitd = ohci_alloc_sitd(sc); 2821 if (nsitd == NULL) { 2822 /* XXX what now? */ 2823 return; 2824 } 2825 sitd->nextitd = nsitd; 2826 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2827 sitd->itd.itd_flags = LE( 2828 OHCI_ITD_NOCC | 2829 OHCI_ITD_SET_SF(iso->next) | 2830 OHCI_ITD_NOINTR | 2831 OHCI_ITD_SET_FC(OHCI_ITD_NOFFSET)); 2832 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2833 nsitd->itd.itd_bp0 = LE((buf + offs) & OHCI_ITD_PAGE_MASK); 2834 sitd = nsitd; 2835 iso->next = iso->next + ncur; 2836 ncur = 0; 2837 ncross = 0; 2838 } 2839 /* XXX byte order */ 2840 sitd->itd.itd_offset[i] = 2841 offs | (ncross == 1 ? OHCI_ITD_PAGE_SELECT : 0); 2842 offs += xfer->frlengths[i]; 2843 /* XXX update ncross */ 2844 } 2845 nsitd = ohci_alloc_sitd(sc); 2846 if (nsitd == NULL) { 2847 /* XXX what now? */ 2848 return; 2849 } 2850 sitd->nextitd = nsitd; 2851 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2852 sitd->itd.itd_flags = LE( 2853 OHCI_ITD_NOCC | 2854 OHCI_ITD_SET_SF(iso->next) | 2855 OHCI_ITD_SET_DI(0) | 2856 OHCI_ITD_SET_FC(ncur)); 2857 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2858 iso->next = iso->next + ncur; 2859 2860 opipe->tail.itd = nsitd; 2861 sed->ed.ed_tailp = LE(nsitd->physaddr); 2862 /* XXX update ED */ 2863 splx(s); 2864 } 2865 2866 usbd_status 2867 ohci_device_isoc_start(xfer) 2868 usbd_xfer_handle xfer; 2869 { 2870 printf("ohci_device_isoc_start: not implemented\n"); 2871 return (USBD_INVAL); 2872 } 2873 2874 void 2875 ohci_device_isoc_abort(xfer) 2876 usbd_xfer_handle xfer; 2877 { 2878 } 2879 2880 void 2881 ohci_device_isoc_done(xfer) 2882 usbd_xfer_handle xfer; 2883 { 2884 printf("ohci_device_isoc_done: not implemented\n"); 2885 } 2886 2887 usbd_status 2888 ohci_setup_isoc(pipe) 2889 usbd_pipe_handle pipe; 2890 { 2891 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2892 struct iso *iso = &opipe->u.iso; 2893 2894 iso->next = -1; 2895 iso->inuse = 0; 2896 2897 return (USBD_NORMAL_COMPLETION); 2898 } 2899 2900 void 2901 ohci_device_isoc_close(pipe) 2902 usbd_pipe_handle pipe; 2903 { 2904 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2905 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2906 2907 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 2908 ohci_close_pipe(pipe, sc->sc_isoc_head); 2909 ohci_free_sitd(sc, opipe->tail.itd); 2910 } 2911
Indexes created Tue Sep 23 21:09:50 GMT 2025