ohci.c revision 1.69
1 /* $NetBSD: ohci.c,v 1.69 2000/01/31 22:09:13 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_waitintr __P((ohci_softc_t *, 134 usbd_xfer_handle)); 135 static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 136 static void ohci_process_done __P((ohci_softc_t *, 137 ohci_physaddr_t)); 138 139 static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 140 static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 141 static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 142 static void ohci_hash_add_td __P((ohci_softc_t *, 143 ohci_soft_td_t *)); 144 static void ohci_hash_rem_td __P((ohci_softc_t *, 145 ohci_soft_td_t *)); 146 static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 147 ohci_physaddr_t)); 148 149 static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 150 static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 151 152 static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 153 u_int32_t)); 154 static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 155 156 static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 157 static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 158 159 static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 160 static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 161 static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 162 static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 163 static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 164 165 static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 166 static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 167 static void ohci_root_intr_abort __P((usbd_xfer_handle)); 168 static void ohci_root_intr_close __P((usbd_pipe_handle)); 169 static void ohci_root_intr_done __P((usbd_xfer_handle)); 170 171 static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 172 static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 173 static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 174 static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 175 static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 176 177 static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 178 static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 179 static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 180 static void ohci_device_bulk_close __P((usbd_pipe_handle)); 181 static void ohci_device_bulk_done __P((usbd_xfer_handle)); 182 183 static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 184 static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 185 static void ohci_device_intr_abort __P((usbd_xfer_handle)); 186 static void ohci_device_intr_close __P((usbd_pipe_handle)); 187 static void ohci_device_intr_done __P((usbd_xfer_handle)); 188 189 static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 190 static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 191 static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 192 static void ohci_device_isoc_close __P((usbd_pipe_handle)); 193 static void ohci_device_isoc_done __P((usbd_xfer_handle)); 194 195 static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 196 struct ohci_pipe *pipe, int ival)); 197 198 static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 199 200 static void ohci_timeout __P((void *)); 201 static void ohci_rhsc_able __P((ohci_softc_t *, int)); 202 203 static void ohci_close_pipe __P((usbd_pipe_handle pipe, 204 ohci_soft_ed_t *head)); 205 static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 206 usbd_status status)); 207 static void ohci_abort_xfer_end __P((void *)); 208 209 static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 210 static void ohci_noop __P((usbd_pipe_handle pipe)); 211 212 #ifdef OHCI_DEBUG 213 static void ohci_dumpregs __P((ohci_softc_t *)); 214 static void ohci_dump_tds __P((ohci_soft_td_t *)); 215 static void ohci_dump_td __P((ohci_soft_td_t *)); 216 static void ohci_dump_ed __P((ohci_soft_ed_t *)); 217 #endif 218 219 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 220 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 221 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 222 223 /* Reverse the bits in a value 0 .. 31 */ 224 static u_int8_t revbits[OHCI_NO_INTRS] = 225 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 226 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 227 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 228 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 229 230 struct ohci_pipe { 231 struct usbd_pipe pipe; 232 ohci_soft_ed_t *sed; 233 union { 234 ohci_soft_td_t *td; 235 ohci_soft_itd_t *itd; 236 } tail; 237 /* Info needed for different pipe kinds. */ 238 union { 239 /* Control pipe */ 240 struct { 241 usb_dma_t reqdma; 242 u_int length; 243 ohci_soft_td_t *setup, *data, *stat; 244 } ctl; 245 /* Interrupt pipe */ 246 struct { 247 int nslots; 248 int pos; 249 } intr; 250 /* Bulk pipe */ 251 struct { 252 u_int length; 253 int isread; 254 } bulk; 255 /* Iso pipe */ 256 struct iso { 257 int next, inuse; 258 } iso; 259 } u; 260 }; 261 262 #define OHCI_INTR_ENDPT 1 263 264 static struct usbd_bus_methods ohci_bus_methods = { 265 ohci_open, 266 ohci_poll, 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 powerhook_disestablish(sc->sc_powerhook); 363 shutdownhook_disestablish(sc->sc_shutdownhook); 364 365 /* free data structures XXX */ 366 367 return (rv); 368 } 369 #endif 370 371 ohci_soft_ed_t * 372 ohci_alloc_sed(sc) 373 ohci_softc_t *sc; 374 { 375 ohci_soft_ed_t *sed; 376 usbd_status err; 377 int i, offs; 378 usb_dma_t dma; 379 380 if (sc->sc_freeeds == NULL) { 381 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 382 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 383 OHCI_ED_ALIGN, &dma); 384 if (err) 385 return (0); 386 for(i = 0; i < OHCI_SED_CHUNK; i++) { 387 offs = i * OHCI_SED_SIZE; 388 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 389 sed->physaddr = DMAADDR(&dma) + offs; 390 sed->next = sc->sc_freeeds; 391 sc->sc_freeeds = sed; 392 } 393 } 394 sed = sc->sc_freeeds; 395 sc->sc_freeeds = sed->next; 396 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 397 sed->next = 0; 398 return (sed); 399 } 400 401 void 402 ohci_free_sed(sc, sed) 403 ohci_softc_t *sc; 404 ohci_soft_ed_t *sed; 405 { 406 sed->next = sc->sc_freeeds; 407 sc->sc_freeeds = sed; 408 } 409 410 ohci_soft_td_t * 411 ohci_alloc_std(sc) 412 ohci_softc_t *sc; 413 { 414 ohci_soft_td_t *std; 415 usbd_status err; 416 int i, offs; 417 usb_dma_t dma; 418 int s; 419 420 if (sc->sc_freetds == NULL) { 421 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 422 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 423 OHCI_TD_ALIGN, &dma); 424 if (err) 425 return (0); 426 s = splusb(); 427 for(i = 0; i < OHCI_STD_CHUNK; i++) { 428 offs = i * OHCI_STD_SIZE; 429 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 430 std->physaddr = DMAADDR(&dma) + offs; 431 std->nexttd = sc->sc_freetds; 432 sc->sc_freetds = std; 433 } 434 splx(s); 435 } 436 437 s = splusb(); 438 std = sc->sc_freetds; 439 sc->sc_freetds = std->nexttd; 440 memset(&std->td, 0, sizeof(ohci_td_t)); 441 std->nexttd = 0; 442 443 ohci_hash_add_td(sc, std); 444 splx(s); 445 446 return (std); 447 } 448 449 void 450 ohci_free_std(sc, std) 451 ohci_softc_t *sc; 452 ohci_soft_td_t *std; 453 { 454 int s; 455 456 s = splusb(); 457 ohci_hash_rem_td(sc, std); 458 459 std->nexttd = sc->sc_freetds; 460 sc->sc_freetds = std; 461 splx(s); 462 } 463 464 usbd_status 465 ohci_alloc_std_chain(opipe, sc, len, rd, flags, dma, sp, ep) 466 struct ohci_pipe *opipe; 467 ohci_softc_t *sc; 468 int len, rd; 469 u_int16_t flags; 470 usb_dma_t *dma; 471 ohci_soft_td_t *sp, **ep; 472 { 473 ohci_soft_td_t *next, *cur; 474 ohci_physaddr_t dataphys, dataphysend; 475 u_int32_t intr, tdflags; 476 int curlen; 477 478 DPRINTFN(len < 4096,("ohci_alloc_std_chain: start len=%d\n", len)); 479 cur = sp; 480 dataphys = DMAADDR(dma); 481 dataphysend = OHCI_PAGE(dataphys + len - 1); 482 tdflags = 483 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 484 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | 485 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0); 486 487 for (;;) { 488 next = ohci_alloc_std(sc); 489 if (next == 0) 490 goto nomem; 491 492 /* The OHCI hardware can handle at most one page crossing. */ 493 if (OHCI_PAGE(dataphys) == dataphysend || 494 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 495 /* we can handle it in this TD */ 496 curlen = len; 497 } else { 498 /* must use multiple TDs, fill as much as possible. */ 499 curlen = 2 * OHCI_PAGE_SIZE - 500 (dataphys & (OHCI_PAGE_SIZE-1)); 501 } 502 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 503 "dataphysend=0x%08x len=%d curlen=%d\n", 504 dataphys, dataphysend, 505 len, curlen)); 506 len -= curlen; 507 508 intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR; 509 cur->td.td_flags = LE(tdflags | intr); 510 cur->td.td_cbp = LE(dataphys); 511 cur->nexttd = next; 512 cur->td.td_nexttd = LE(next->physaddr); 513 cur->td.td_be = LE(dataphys + curlen - 1); 514 cur->len = curlen; 515 cur->flags = OHCI_ADD_LEN; 516 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 517 dataphys, dataphys + curlen - 1)); 518 if (len == 0) 519 break; 520 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 521 dataphys += curlen; 522 cur = next; 523 } 524 if ((flags & USBD_FORCE_SHORT_XFER) && 525 len % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 526 /* Force a 0 length transfer at the end. */ 527 next = ohci_alloc_std(sc); 528 if (next == 0) 529 goto nomem; 530 531 cur->td.td_flags = LE(tdflags | OHCI_TD_SET_DI(1)); 532 cur->td.td_cbp = 0; /* indicate 0 length packet */ 533 cur->nexttd = next; 534 cur->td.td_nexttd = LE(next->physaddr); 535 cur->td.td_be = LE(dataphys - 1); 536 cur->len = 0; 537 cur->flags = 0; 538 cur = next; 539 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 540 } 541 cur->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 542 *ep = next; 543 544 return (USBD_NORMAL_COMPLETION); 545 546 nomem: 547 /* XXX free chain */ 548 return (USBD_NOMEM); 549 } 550 551 #if 0 552 static void 553 ohci_free_std_chain(sc, std, stdend) 554 ohci_softc_t *sc; 555 ohci_soft_td_t *std; 556 ohci_soft_td_t *stdend; 557 { 558 ohci_soft_td_t *p; 559 560 for (; std != stdend; std = p) { 561 p = std->nexttd; 562 ohci_free_std(sc, std); 563 } 564 } 565 #endif 566 567 ohci_soft_itd_t * 568 ohci_alloc_sitd(sc) 569 ohci_softc_t *sc; 570 { 571 ohci_soft_itd_t *sitd; 572 usbd_status err; 573 int i, offs; 574 usb_dma_t dma; 575 576 if (sc->sc_freeitds == NULL) { 577 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 578 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 579 OHCI_TD_ALIGN, &dma); 580 if (err) 581 return (0); 582 for(i = 0; i < OHCI_STD_CHUNK; i++) { 583 offs = i * OHCI_STD_SIZE; 584 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 585 sitd->physaddr = DMAADDR(&dma) + offs; 586 sitd->nextitd = sc->sc_freeitds; 587 sc->sc_freeitds = sitd; 588 } 589 } 590 sitd = sc->sc_freeitds; 591 sc->sc_freeitds = sitd->nextitd; 592 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 593 sitd->nextitd = 0; 594 return (sitd); 595 } 596 597 void 598 ohci_free_sitd(sc, sitd) 599 ohci_softc_t *sc; 600 ohci_soft_itd_t *sitd; 601 { 602 sitd->nextitd = sc->sc_freeitds; 603 sc->sc_freeitds = sitd; 604 } 605 606 usbd_status 607 ohci_init(sc) 608 ohci_softc_t *sc; 609 { 610 ohci_soft_ed_t *sed, *psed; 611 usbd_status err; 612 int i; 613 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 614 615 DPRINTF(("ohci_init: start\n")); 616 #if defined(__OpenBSD__) 617 printf(","); 618 #else 619 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 620 #endif 621 rev = OREAD4(sc, OHCI_REVISION); 622 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 623 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 624 625 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 626 printf("%s: unsupported OHCI revision\n", 627 USBDEVNAME(sc->sc_bus.bdev)); 628 sc->sc_bus.usbrev = USBREV_UNKNOWN; 629 return (USBD_INVAL); 630 } 631 sc->sc_bus.usbrev = USBREV_1_0; 632 633 for (i = 0; i < OHCI_HASH_SIZE; i++) 634 LIST_INIT(&sc->sc_hash_tds[i]); 635 636 SIMPLEQ_INIT(&sc->sc_free_xfers); 637 638 /* Allocate the HCCA area. */ 639 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 640 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 641 if (err) 642 return (err); 643 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 644 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 645 646 sc->sc_eintrs = OHCI_NORMAL_INTRS; 647 648 /* Allocate dummy ED that starts the control list. */ 649 sc->sc_ctrl_head = ohci_alloc_sed(sc); 650 if (sc->sc_ctrl_head == NULL) { 651 err = USBD_NOMEM; 652 goto bad1; 653 } 654 sc->sc_ctrl_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 655 656 /* Allocate dummy ED that starts the bulk list. */ 657 sc->sc_bulk_head = ohci_alloc_sed(sc); 658 if (sc->sc_bulk_head == NULL) { 659 err = USBD_NOMEM; 660 goto bad2; 661 } 662 sc->sc_bulk_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 663 664 /* Allocate dummy ED that starts the isochronous list. */ 665 sc->sc_isoc_head = ohci_alloc_sed(sc); 666 if (sc->sc_isoc_head == NULL) { 667 err = USBD_NOMEM; 668 goto bad3; 669 } 670 sc->sc_isoc_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 671 672 /* Allocate all the dummy EDs that make up the interrupt tree. */ 673 for (i = 0; i < OHCI_NO_EDS; i++) { 674 sed = ohci_alloc_sed(sc); 675 if (sed == NULL) { 676 while (--i >= 0) 677 ohci_free_sed(sc, sc->sc_eds[i]); 678 err = USBD_NOMEM; 679 goto bad4; 680 } 681 /* All ED fields are set to 0. */ 682 sc->sc_eds[i] = sed; 683 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 684 if (i != 0) 685 psed = sc->sc_eds[(i-1) / 2]; 686 else 687 psed= sc->sc_isoc_head; 688 sed->next = psed; 689 sed->ed.ed_nexted = LE(psed->physaddr); 690 } 691 /* 692 * Fill HCCA interrupt table. The bit reversal is to get 693 * the tree set up properly to spread the interrupts. 694 */ 695 for (i = 0; i < OHCI_NO_INTRS; i++) 696 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 697 LE(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 698 699 /* Determine in what context we are running. */ 700 ctl = OREAD4(sc, OHCI_CONTROL); 701 if (ctl & OHCI_IR) { 702 /* SMM active, request change */ 703 DPRINTF(("ohci_init: SMM active, request owner change\n")); 704 s = OREAD4(sc, OHCI_COMMAND_STATUS); 705 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 706 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 707 usb_delay_ms(&sc->sc_bus, 1); 708 ctl = OREAD4(sc, OHCI_CONTROL); 709 } 710 if ((ctl & OHCI_IR) == 0) { 711 printf("%s: SMM does not respond, resetting\n", 712 USBDEVNAME(sc->sc_bus.bdev)); 713 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 714 goto reset; 715 } 716 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 717 /* BIOS started controller. */ 718 DPRINTF(("ohci_init: BIOS active\n")); 719 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 720 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 721 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 722 } 723 } else { 724 DPRINTF(("ohci_init: cold started\n")); 725 reset: 726 /* Controller was cold started. */ 727 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 728 } 729 730 /* 731 * This reset should not be necessary according to the OHCI spec, but 732 * without it some controllers do not start. 733 */ 734 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 735 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 736 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 737 738 /* We now own the host controller and the bus has been reset. */ 739 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 740 741 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 742 /* Nominal time for a reset is 10 us. */ 743 for (i = 0; i < 10; i++) { 744 delay(10); 745 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 746 if (!hcr) 747 break; 748 } 749 if (hcr) { 750 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 751 err = USBD_IOERROR; 752 goto bad5; 753 } 754 #ifdef OHCI_DEBUG 755 if (ohcidebug > 15) 756 ohci_dumpregs(sc); 757 #endif 758 759 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 760 761 /* Set up HC registers. */ 762 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 763 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 764 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 765 /* disable all interrupts and then switch on all desired interrupts */ 766 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 767 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 768 /* switch on desired functional features */ 769 ctl = OREAD4(sc, OHCI_CONTROL); 770 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 771 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 772 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 773 /* And finally start it! */ 774 OWRITE4(sc, OHCI_CONTROL, ctl); 775 776 /* 777 * The controller is now OPERATIONAL. Set a some final 778 * registers that should be set earlier, but that the 779 * controller ignores when in the SUSPEND state. 780 */ 781 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 782 fm |= OHCI_FSMPS(ival) | ival; 783 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 784 per = OHCI_PERIODIC(ival); /* 90% periodic */ 785 OWRITE4(sc, OHCI_PERIODIC_START, per); 786 787 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 788 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 789 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 790 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 791 usb_delay_ms(&sc->sc_bus, 5); 792 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 793 794 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 795 796 #ifdef OHCI_DEBUG 797 if (ohcidebug > 5) 798 ohci_dumpregs(sc); 799 #endif 800 801 /* Set up the bus struct. */ 802 sc->sc_bus.methods = &ohci_bus_methods; 803 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 804 805 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 806 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 807 808 return (USBD_NORMAL_COMPLETION); 809 810 bad5: 811 for (i = 0; i < OHCI_NO_EDS; i++) 812 ohci_free_sed(sc, sc->sc_eds[i]); 813 bad4: 814 ohci_free_sed(sc, sc->sc_isoc_head); 815 bad3: 816 ohci_free_sed(sc, sc->sc_ctrl_head); 817 bad2: 818 ohci_free_sed(sc, sc->sc_bulk_head); 819 bad1: 820 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 821 return (err); 822 } 823 824 usbd_status 825 ohci_allocm(bus, dma, size) 826 struct usbd_bus *bus; 827 usb_dma_t *dma; 828 u_int32_t size; 829 { 830 #if defined(__NetBSD__) || defined(__OpenBSD__) 831 struct ohci_softc *sc = (struct ohci_softc *)bus; 832 #endif 833 834 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 835 } 836 837 void 838 ohci_freem(bus, dma) 839 struct usbd_bus *bus; 840 usb_dma_t *dma; 841 { 842 #if defined(__NetBSD__) || defined(__OpenBSD__) 843 struct ohci_softc *sc = (struct ohci_softc *)bus; 844 #endif 845 846 usb_freemem(&sc->sc_bus, dma); 847 } 848 849 usbd_xfer_handle 850 ohci_allocx(bus) 851 struct usbd_bus *bus; 852 { 853 struct ohci_softc *sc = (struct ohci_softc *)bus; 854 usbd_xfer_handle xfer; 855 856 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 857 if (xfer != NULL) 858 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 859 else 860 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 861 if (xfer != NULL) 862 memset(xfer, 0, sizeof *xfer); 863 return (xfer); 864 } 865 866 void 867 ohci_freex(bus, xfer) 868 struct usbd_bus *bus; 869 usbd_xfer_handle xfer; 870 { 871 struct ohci_softc *sc = (struct ohci_softc *)bus; 872 873 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 874 } 875 876 /* 877 * Shut down the controller when the system is going down. 878 */ 879 void 880 ohci_shutdown(v) 881 void *v; 882 { 883 ohci_softc_t *sc = v; 884 885 DPRINTF(("ohci_shutdown: stopping the HC\n")); 886 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 887 } 888 889 /* 890 * Handle suspend/resume. 891 * 892 * We need to switch to polling mode here, because this routine is 893 * called from an intterupt context. This is all right since we 894 * are almost suspended anyway. 895 */ 896 void 897 ohci_power(why, v) 898 int why; 899 void *v; 900 { 901 #ifdef OHCI_DEBUG 902 ohci_softc_t *sc = v; 903 904 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 905 /* XXX should suspend/resume */ 906 ohci_dumpregs(sc); 907 #endif 908 } 909 910 #ifdef OHCI_DEBUG 911 void 912 ohci_dumpregs(sc) 913 ohci_softc_t *sc; 914 { 915 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 916 OREAD4(sc, OHCI_REVISION), 917 OREAD4(sc, OHCI_CONTROL), 918 OREAD4(sc, OHCI_COMMAND_STATUS))); 919 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 920 OREAD4(sc, OHCI_INTERRUPT_STATUS), 921 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 922 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 923 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 924 OREAD4(sc, OHCI_HCCA), 925 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 926 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 927 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 928 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 929 OREAD4(sc, OHCI_BULK_HEAD_ED), 930 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 931 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 932 OREAD4(sc, OHCI_DONE_HEAD), 933 OREAD4(sc, OHCI_FM_INTERVAL), 934 OREAD4(sc, OHCI_FM_REMAINING))); 935 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 936 OREAD4(sc, OHCI_FM_NUMBER), 937 OREAD4(sc, OHCI_PERIODIC_START), 938 OREAD4(sc, OHCI_LS_THRESHOLD))); 939 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 940 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 941 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 942 OREAD4(sc, OHCI_RH_STATUS))); 943 DPRINTF((" port1=0x%08x port2=0x%08x\n", 944 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 945 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 946 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 947 LE(sc->sc_hcca->hcca_frame_number), 948 LE(sc->sc_hcca->hcca_done_head))); 949 } 950 #endif 951 952 static int ohci_intr1 __P((ohci_softc_t *)); 953 954 int 955 ohci_intr(p) 956 void *p; 957 { 958 ohci_softc_t *sc = p; 959 960 /* If we get an interrupt while polling, then just ignore it. */ 961 if (sc->sc_bus.use_polling) { 962 #ifdef DIAGNOSTIC 963 printf("ohci_intr: ignored interrupt while polling\n"); 964 #endif 965 return (0); 966 } 967 968 return (ohci_intr1(sc)); 969 } 970 971 static int 972 ohci_intr1(sc) 973 ohci_softc_t *sc; 974 { 975 u_int32_t intrs, eintrs; 976 ohci_physaddr_t done; 977 978 /* In case the interrupt occurs before initialization has completed. */ 979 if (sc == NULL || sc->sc_hcca == NULL) { 980 #ifdef DIAGNOSTIC 981 printf("ohci_intr: sc->sc_hcca == NULL\n"); 982 #endif 983 return (0); 984 } 985 986 intrs = 0; 987 done = LE(sc->sc_hcca->hcca_done_head); 988 if (done != 0) { 989 sc->sc_hcca->hcca_done_head = 0; 990 if (done & ~OHCI_DONE_INTRS) 991 intrs = OHCI_WDH; 992 if (done & OHCI_DONE_INTRS) 993 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 994 } else 995 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 996 997 if (!intrs) 998 return (0); 999 1000 intrs &= ~OHCI_MIE; 1001 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1002 eintrs = intrs & sc->sc_eintrs; 1003 if (!eintrs) 1004 return (0); 1005 1006 sc->sc_bus.intr_context++; 1007 sc->sc_bus.no_intrs++; 1008 DPRINTFN(7, ("ohci_intr: sc=%p intrs=%x(%x) eintr=%x\n", 1009 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1010 (u_int)eintrs)); 1011 1012 if (eintrs & OHCI_SO) { 1013 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1014 /* XXX do what */ 1015 intrs &= ~OHCI_SO; 1016 } 1017 if (eintrs & OHCI_WDH) { 1018 ohci_process_done(sc, done &~ OHCI_DONE_INTRS); 1019 intrs &= ~OHCI_WDH; 1020 } 1021 if (eintrs & OHCI_RD) { 1022 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1023 /* XXX process resume detect */ 1024 } 1025 if (eintrs & OHCI_UE) { 1026 printf("%s: unrecoverable error, controller halted\n", 1027 USBDEVNAME(sc->sc_bus.bdev)); 1028 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1029 /* XXX what else */ 1030 } 1031 if (eintrs & OHCI_RHSC) { 1032 ohci_rhsc(sc, sc->sc_intrxfer); 1033 intrs &= ~OHCI_RHSC; 1034 1035 /* 1036 * Disable RHSC interrupt for now, because it will be 1037 * on until the port has been reset. 1038 */ 1039 ohci_rhsc_able(sc, 0); 1040 } 1041 1042 sc->sc_bus.intr_context--; 1043 1044 /* Block unprocessed interrupts. XXX */ 1045 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1046 sc->sc_eintrs &= ~intrs; 1047 1048 return (1); 1049 } 1050 1051 void 1052 ohci_rhsc_able(sc, on) 1053 ohci_softc_t *sc; 1054 int on; 1055 { 1056 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1057 if (on) { 1058 sc->sc_eintrs |= OHCI_RHSC; 1059 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1060 } else { 1061 sc->sc_eintrs &= ~OHCI_RHSC; 1062 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1063 } 1064 } 1065 1066 #ifdef OHCI_DEBUG 1067 char *ohci_cc_strs[] = { 1068 "NO_ERROR", 1069 "CRC", 1070 "BIT_STUFFING", 1071 "DATA_TOGGLE_MISMATCH", 1072 "STALL", 1073 "DEVICE_NOT_RESPONDING", 1074 "PID_CHECK_FAILURE", 1075 "UNEXPECTED_PID", 1076 "DATA_OVERRUN", 1077 "DATA_UNDERRUN", 1078 "BUFFER_OVERRUN", 1079 "BUFFER_UNDERRUN", 1080 "reserved", 1081 "reserved", 1082 "NOT_ACCESSED", 1083 "NOT_ACCESSED", 1084 }; 1085 #endif 1086 1087 void 1088 ohci_process_done(sc, done) 1089 ohci_softc_t *sc; 1090 ohci_physaddr_t done; 1091 { 1092 ohci_soft_td_t *std, *sdone, *stdnext; 1093 usbd_xfer_handle xfer; 1094 int len, cc; 1095 1096 DPRINTFN(10,("ohci_process_done: done=0x%08lx\n", (u_long)done)); 1097 1098 /* Reverse the done list. */ 1099 for (sdone = NULL; done != 0; done = LE(std->td.td_nexttd)) { 1100 std = ohci_hash_find_td(sc, done); 1101 std->dnext = sdone; 1102 sdone = std; 1103 } 1104 1105 #ifdef OHCI_DEBUG 1106 if (ohcidebug > 10) { 1107 DPRINTF(("ohci_process_done: TD done:\n")); 1108 ohci_dump_tds(sdone); 1109 } 1110 #endif 1111 1112 for (std = sdone; std; std = stdnext) { 1113 xfer = std->xfer; 1114 stdnext = std->dnext; 1115 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1116 std, xfer, xfer ? xfer->hcpriv : 0)); 1117 cc = OHCI_TD_GET_CC(LE(std->td.td_flags)); 1118 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1119 if (xfer->status == USBD_CANCELLED || 1120 xfer->status == USBD_TIMEOUT) { 1121 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1122 xfer)); 1123 /* Handled by abort routine. */ 1124 } else if (cc == OHCI_CC_NO_ERROR) { 1125 len = std->len; 1126 if (std->td.td_cbp != 0) 1127 len -= LE(std->td.td_be) - 1128 LE(std->td.td_cbp) + 1; 1129 if (std->flags & OHCI_ADD_LEN) 1130 xfer->actlen += len; 1131 if (std->flags & OHCI_CALL_DONE) { 1132 xfer->status = USBD_NORMAL_COMPLETION; 1133 usb_transfer_complete(xfer); 1134 } 1135 ohci_free_std(sc, std); 1136 } else { 1137 /* 1138 * Endpoint is halted. First unlink all the TDs 1139 * belonging to the failed transfer, and then restart 1140 * the endpoint. 1141 */ 1142 ohci_soft_td_t *p, *n; 1143 struct ohci_pipe *opipe = 1144 (struct ohci_pipe *)xfer->pipe; 1145 1146 DPRINTF(("ohci_process_done: error cc=%d (%s)\n", 1147 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1148 ohci_cc_strs[OHCI_TD_GET_CC(LE(std->td.td_flags))])); 1149 1150 /* remove TDs */ 1151 for (p = std; p->xfer == xfer; p = n) { 1152 n = p->nexttd; 1153 ohci_free_std(sc, p); 1154 } 1155 1156 /* clear halt */ 1157 opipe->sed->ed.ed_headp = LE(p->physaddr); 1158 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1159 1160 if (cc == OHCI_CC_STALL) 1161 xfer->status = USBD_STALLED; 1162 else 1163 xfer->status = USBD_IOERROR; 1164 usb_transfer_complete(xfer); 1165 } 1166 } 1167 } 1168 1169 void 1170 ohci_device_ctrl_done(xfer) 1171 usbd_xfer_handle xfer; 1172 { 1173 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1174 1175 #ifdef DIAGNOSTIC 1176 if (!(xfer->rqflags & URQ_REQUEST)) { 1177 panic("ohci_ctrl_done: not a request\n"); 1178 } 1179 #endif 1180 xfer->hcpriv = NULL; 1181 } 1182 1183 void 1184 ohci_device_intr_done(xfer) 1185 usbd_xfer_handle xfer; 1186 { 1187 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1188 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1189 ohci_soft_ed_t *sed = opipe->sed; 1190 ohci_soft_td_t *data, *tail; 1191 1192 1193 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1194 xfer, xfer->actlen)); 1195 1196 xfer->hcpriv = NULL; 1197 1198 if (xfer->pipe->repeat) { 1199 data = opipe->tail.td; 1200 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1201 if (tail == NULL) { 1202 xfer->status = USBD_NOMEM; 1203 return; 1204 } 1205 tail->xfer = NULL; 1206 1207 data->td.td_flags = LE( 1208 OHCI_TD_IN | OHCI_TD_NOCC | 1209 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1210 if (xfer->flags & USBD_SHORT_XFER_OK) 1211 data->td.td_flags |= LE(OHCI_TD_R); 1212 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1213 data->nexttd = tail; 1214 data->td.td_nexttd = LE(tail->physaddr); 1215 data->td.td_be = LE(LE(data->td.td_cbp) + xfer->length - 1); 1216 data->len = xfer->length; 1217 data->xfer = xfer; 1218 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1219 xfer->hcpriv = data; 1220 xfer->actlen = 0; 1221 1222 sed->ed.ed_tailp = LE(tail->physaddr); 1223 opipe->tail.td = tail; 1224 } 1225 } 1226 1227 void 1228 ohci_device_bulk_done(xfer) 1229 usbd_xfer_handle xfer; 1230 { 1231 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1232 xfer, xfer->actlen)); 1233 1234 xfer->hcpriv = NULL; 1235 } 1236 1237 void 1238 ohci_rhsc(sc, xfer) 1239 ohci_softc_t *sc; 1240 usbd_xfer_handle xfer; 1241 { 1242 usbd_pipe_handle pipe; 1243 struct ohci_pipe *opipe; 1244 u_char *p; 1245 int i, m; 1246 int hstatus; 1247 1248 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1249 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1250 sc, xfer, hstatus)); 1251 1252 if (xfer == NULL) { 1253 /* Just ignore the change. */ 1254 return; 1255 } 1256 1257 pipe = xfer->pipe; 1258 opipe = (struct ohci_pipe *)pipe; 1259 1260 p = KERNADDR(&xfer->dmabuf); 1261 m = min(sc->sc_noport, xfer->length * 8 - 1); 1262 memset(p, 0, xfer->length); 1263 for (i = 1; i <= m; i++) { 1264 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1265 p[i/8] |= 1 << (i%8); 1266 } 1267 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1268 xfer->actlen = xfer->length; 1269 xfer->status = USBD_NORMAL_COMPLETION; 1270 1271 usb_transfer_complete(xfer); 1272 } 1273 1274 void 1275 ohci_root_intr_done(xfer) 1276 usbd_xfer_handle xfer; 1277 { 1278 xfer->hcpriv = NULL; 1279 } 1280 1281 void 1282 ohci_root_ctrl_done(xfer) 1283 usbd_xfer_handle xfer; 1284 { 1285 xfer->hcpriv = NULL; 1286 } 1287 1288 /* 1289 * Wait here until controller claims to have an interrupt. 1290 * Then call ohci_intr and return. Use timeout to avoid waiting 1291 * too long. 1292 */ 1293 void 1294 ohci_waitintr(sc, xfer) 1295 ohci_softc_t *sc; 1296 usbd_xfer_handle xfer; 1297 { 1298 int timo = xfer->timeout; 1299 int usecs; 1300 u_int32_t intrs; 1301 1302 xfer->status = USBD_IN_PROGRESS; 1303 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1304 usb_delay_ms(&sc->sc_bus, 1); 1305 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1306 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1307 #ifdef OHCI_DEBUG 1308 if (ohcidebug > 15) 1309 ohci_dumpregs(sc); 1310 #endif 1311 if (intrs) { 1312 ohci_intr1(sc); 1313 if (xfer->status != USBD_IN_PROGRESS) 1314 return; 1315 } 1316 } 1317 1318 /* Timeout */ 1319 DPRINTF(("ohci_waitintr: timeout\n")); 1320 xfer->status = USBD_TIMEOUT; 1321 usb_transfer_complete(xfer); 1322 /* XXX should free TD */ 1323 } 1324 1325 void 1326 ohci_poll(bus) 1327 struct usbd_bus *bus; 1328 { 1329 ohci_softc_t *sc = (ohci_softc_t *)bus; 1330 1331 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1332 ohci_intr1(sc); 1333 } 1334 1335 usbd_status 1336 ohci_device_request(xfer) 1337 usbd_xfer_handle xfer; 1338 { 1339 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1340 usb_device_request_t *req = &xfer->request; 1341 usbd_device_handle dev = opipe->pipe.device; 1342 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1343 int addr = dev->address; 1344 ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail; 1345 ohci_soft_ed_t *sed; 1346 int isread; 1347 int len; 1348 usbd_status err; 1349 int s; 1350 1351 isread = req->bmRequestType & UT_READ; 1352 len = UGETW(req->wLength); 1353 1354 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1355 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1356 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1357 UGETW(req->wIndex), len, addr, 1358 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1359 1360 setup = opipe->tail.td; 1361 stat = ohci_alloc_std(sc); 1362 if (stat == NULL) { 1363 err = USBD_NOMEM; 1364 goto bad1; 1365 } 1366 tail = ohci_alloc_std(sc); 1367 if (tail == NULL) { 1368 err = USBD_NOMEM; 1369 goto bad2; 1370 } 1371 tail->xfer = NULL; 1372 1373 sed = opipe->sed; 1374 opipe->u.ctl.length = len; 1375 1376 /* Update device address and length since they may have changed. */ 1377 /* XXX This only needs to be done once, but it's too early in open. */ 1378 sed->ed.ed_flags = LE( 1379 (LE(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1380 OHCI_ED_SET_FA(addr) | 1381 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1382 1383 /* Set up data transaction */ 1384 if (len != 0) { 1385 data = ohci_alloc_std(sc); 1386 if (data == NULL) { 1387 err = USBD_NOMEM; 1388 goto bad3; 1389 } 1390 data->td.td_flags = LE( 1391 (isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC | 1392 OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR | 1393 (xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0)); 1394 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1395 data->nexttd = stat; 1396 data->td.td_nexttd = LE(stat->physaddr); 1397 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 1398 data->len = len; 1399 data->xfer = xfer; 1400 data->flags = OHCI_ADD_LEN; 1401 1402 next = data; 1403 stat->flags = OHCI_CALL_DONE; 1404 } else { 1405 next = stat; 1406 /* XXX ADD_LEN? */ 1407 stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1408 } 1409 1410 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1411 1412 setup->td.td_flags = LE(OHCI_TD_SETUP | OHCI_TD_NOCC | 1413 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1414 setup->td.td_cbp = LE(DMAADDR(&opipe->u.ctl.reqdma)); 1415 setup->nexttd = next; 1416 setup->td.td_nexttd = LE(next->physaddr); 1417 setup->td.td_be = LE(LE(setup->td.td_cbp) + sizeof *req - 1); 1418 setup->len = 0; /* XXX The number of byte we count */ 1419 setup->xfer = xfer; 1420 setup->flags = 0; 1421 xfer->hcpriv = setup; 1422 1423 stat->td.td_flags = LE( 1424 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC | 1425 OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1426 stat->td.td_cbp = 0; 1427 stat->nexttd = tail; 1428 stat->td.td_nexttd = LE(tail->physaddr); 1429 stat->td.td_be = 0; 1430 stat->len = 0; 1431 stat->xfer = xfer; 1432 1433 #ifdef OHCI_DEBUG 1434 if (ohcidebug > 5) { 1435 DPRINTF(("ohci_device_request:\n")); 1436 ohci_dump_ed(sed); 1437 ohci_dump_tds(setup); 1438 } 1439 #endif 1440 1441 /* Insert ED in schedule */ 1442 s = splusb(); 1443 sed->ed.ed_tailp = LE(tail->physaddr); 1444 opipe->tail.td = tail; 1445 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1446 if (xfer->timeout && !sc->sc_bus.use_polling) { 1447 usb_timeout(ohci_timeout, xfer, 1448 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 1449 } 1450 splx(s); 1451 1452 #ifdef OHCI_DEBUG 1453 if (ohcidebug > 5) { 1454 usb_delay_ms(&sc->sc_bus, 5); 1455 DPRINTF(("ohci_device_request: status=%x\n", 1456 OREAD4(sc, OHCI_COMMAND_STATUS))); 1457 ohci_dump_ed(sed); 1458 ohci_dump_tds(setup); 1459 } 1460 #endif 1461 1462 return (USBD_NORMAL_COMPLETION); 1463 1464 bad3: 1465 ohci_free_std(sc, tail); 1466 bad2: 1467 ohci_free_std(sc, stat); 1468 bad1: 1469 return (err); 1470 } 1471 1472 /* 1473 * Add an ED to the schedule. Called at splusb(). 1474 */ 1475 void 1476 ohci_add_ed(sed, head) 1477 ohci_soft_ed_t *sed; 1478 ohci_soft_ed_t *head; 1479 { 1480 SPLUSBCHECK; 1481 sed->next = head->next; 1482 sed->ed.ed_nexted = head->ed.ed_nexted; 1483 head->next = sed; 1484 head->ed.ed_nexted = LE(sed->physaddr); 1485 } 1486 1487 /* 1488 * Remove an ED from the schedule. Called at splusb(). 1489 */ 1490 void 1491 ohci_rem_ed(sed, head) 1492 ohci_soft_ed_t *sed; 1493 ohci_soft_ed_t *head; 1494 { 1495 ohci_soft_ed_t *p; 1496 1497 SPLUSBCHECK; 1498 1499 /* XXX */ 1500 for (p = head; p == NULL && p->next != sed; p = p->next) 1501 ; 1502 if (p == NULL) 1503 panic("ohci_rem_ed: ED not found\n"); 1504 p->next = sed->next; 1505 p->ed.ed_nexted = sed->ed.ed_nexted; 1506 } 1507 1508 /* 1509 * When a transfer is completed the TD is added to the done queue by 1510 * the host controller. This queue is the processed by software. 1511 * Unfortunately the queue contains the physical address of the TD 1512 * and we have no simple way to translate this back to a kernel address. 1513 * To make the translation possible (and fast) we use a hash table of 1514 * TDs currently in the schedule. The physical address is used as the 1515 * hash value. 1516 */ 1517 1518 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1519 /* Called at splusb() */ 1520 void 1521 ohci_hash_add_td(sc, std) 1522 ohci_softc_t *sc; 1523 ohci_soft_td_t *std; 1524 { 1525 int h = HASH(std->physaddr); 1526 1527 SPLUSBCHECK; 1528 1529 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1530 } 1531 1532 /* Called at splusb() */ 1533 void 1534 ohci_hash_rem_td(sc, std) 1535 ohci_softc_t *sc; 1536 ohci_soft_td_t *std; 1537 { 1538 SPLUSBCHECK; 1539 1540 LIST_REMOVE(std, hnext); 1541 } 1542 1543 ohci_soft_td_t * 1544 ohci_hash_find_td(sc, a) 1545 ohci_softc_t *sc; 1546 ohci_physaddr_t a; 1547 { 1548 int h = HASH(a); 1549 ohci_soft_td_t *std; 1550 1551 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1552 std != NULL; 1553 std = LIST_NEXT(std, hnext)) 1554 if (std->physaddr == a) 1555 return (std); 1556 panic("ohci_hash_find_td: addr 0x%08lx not found\n", (u_long)a); 1557 } 1558 1559 void 1560 ohci_timeout(addr) 1561 void *addr; 1562 { 1563 usbd_xfer_handle xfer = addr; 1564 int s; 1565 1566 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1567 1568 s = splusb(); 1569 xfer->device->bus->intr_context++; 1570 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1571 xfer->device->bus->intr_context--; 1572 splx(s); 1573 } 1574 1575 #ifdef OHCI_DEBUG 1576 void 1577 ohci_dump_tds(std) 1578 ohci_soft_td_t *std; 1579 { 1580 for (; std; std = std->nexttd) 1581 ohci_dump_td(std); 1582 } 1583 1584 void 1585 ohci_dump_td(std) 1586 ohci_soft_td_t *std; 1587 { 1588 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1589 "nexttd=0x%08lx be=0x%08lx\n", 1590 std, (u_long)std->physaddr, 1591 (int)LE(std->td.td_flags), 1592 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1593 OHCI_TD_GET_DI(LE(std->td.td_flags)), 1594 OHCI_TD_GET_EC(LE(std->td.td_flags)), 1595 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1596 (u_long)LE(std->td.td_cbp), 1597 (u_long)LE(std->td.td_nexttd), (u_long)LE(std->td.td_be))); 1598 } 1599 1600 void 1601 ohci_dump_ed(sed) 1602 ohci_soft_ed_t *sed; 1603 { 1604 DPRINTF(("ED(%p) at %08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1605 "headp=%b nexted=0x%08lx\n", 1606 sed, (u_long)sed->physaddr, 1607 OHCI_ED_GET_FA(LE(sed->ed.ed_flags)), 1608 OHCI_ED_GET_EN(LE(sed->ed.ed_flags)), 1609 OHCI_ED_GET_MAXP(LE(sed->ed.ed_flags)), 1610 (int)LE(sed->ed.ed_flags), 1611 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1612 (u_long)LE(sed->ed.ed_tailp), 1613 (u_long)LE(sed->ed.ed_headp), 1614 "\20\1HALT\2CARRY", 1615 (u_long)LE(sed->ed.ed_nexted))); 1616 } 1617 #endif 1618 1619 usbd_status 1620 ohci_open(pipe) 1621 usbd_pipe_handle pipe; 1622 { 1623 usbd_device_handle dev = pipe->device; 1624 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1625 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1626 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1627 u_int8_t addr = dev->address; 1628 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1629 ohci_soft_ed_t *sed; 1630 ohci_soft_td_t *std; 1631 ohci_soft_itd_t *sitd; 1632 ohci_physaddr_t tdphys; 1633 u_int32_t fmt; 1634 usbd_status err; 1635 int s; 1636 int ival; 1637 1638 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1639 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1640 if (addr == sc->sc_addr) { 1641 switch (ed->bEndpointAddress) { 1642 case USB_CONTROL_ENDPOINT: 1643 pipe->methods = &ohci_root_ctrl_methods; 1644 break; 1645 case UE_DIR_IN | OHCI_INTR_ENDPT: 1646 pipe->methods = &ohci_root_intr_methods; 1647 break; 1648 default: 1649 return (USBD_INVAL); 1650 } 1651 } else { 1652 sed = ohci_alloc_sed(sc); 1653 if (sed == NULL) 1654 goto bad0; 1655 opipe->sed = sed; 1656 if (xfertype == UE_ISOCHRONOUS) { 1657 sitd = ohci_alloc_sitd(sc); 1658 if (sitd == NULL) { 1659 ohci_free_sitd(sc, sitd); 1660 goto bad1; 1661 } 1662 opipe->tail.itd = sitd; 1663 tdphys = LE(sitd->physaddr); 1664 fmt = OHCI_ED_FORMAT_ISO; 1665 } else { 1666 std = ohci_alloc_std(sc); 1667 if (std == NULL) { 1668 ohci_free_std(sc, std); 1669 goto bad1; 1670 } 1671 opipe->tail.td = std; 1672 tdphys = LE(std->physaddr); 1673 fmt = OHCI_ED_FORMAT_GEN; 1674 } 1675 sed->ed.ed_flags = LE( 1676 OHCI_ED_SET_FA(addr) | 1677 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1678 OHCI_ED_DIR_TD | 1679 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1680 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1681 sed->ed.ed_headp = sed->ed.ed_tailp = tdphys; 1682 1683 switch (xfertype) { 1684 case UE_CONTROL: 1685 pipe->methods = &ohci_device_ctrl_methods; 1686 err = usb_allocmem(&sc->sc_bus, 1687 sizeof(usb_device_request_t), 1688 0, &opipe->u.ctl.reqdma); 1689 if (err) 1690 goto bad; 1691 s = splusb(); 1692 ohci_add_ed(sed, sc->sc_ctrl_head); 1693 splx(s); 1694 break; 1695 case UE_INTERRUPT: 1696 pipe->methods = &ohci_device_intr_methods; 1697 ival = pipe->interval; 1698 if (ival == USBD_DEFAULT_INTERVAL) 1699 ival = ed->bInterval; 1700 return (ohci_device_setintr(sc, opipe, ival)); 1701 case UE_ISOCHRONOUS: 1702 pipe->methods = &ohci_device_isoc_methods; 1703 return (ohci_setup_isoc(pipe)); 1704 case UE_BULK: 1705 pipe->methods = &ohci_device_bulk_methods; 1706 s = splusb(); 1707 ohci_add_ed(sed, sc->sc_bulk_head); 1708 splx(s); 1709 break; 1710 } 1711 } 1712 return (USBD_NORMAL_COMPLETION); 1713 1714 bad: 1715 ohci_free_std(sc, std); 1716 bad1: 1717 ohci_free_sed(sc, sed); 1718 bad0: 1719 return (USBD_NOMEM); 1720 1721 } 1722 1723 /* 1724 * Close a reqular pipe. 1725 * Assumes that there are no pending transactions. 1726 */ 1727 void 1728 ohci_close_pipe(pipe, head) 1729 usbd_pipe_handle pipe; 1730 ohci_soft_ed_t *head; 1731 { 1732 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1733 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1734 ohci_soft_ed_t *sed = opipe->sed; 1735 int s; 1736 1737 s = splusb(); 1738 #ifdef DIAGNOSTIC 1739 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 1740 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1741 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) { 1742 ohci_physaddr_t td = sed->ed.ed_headp; 1743 ohci_soft_td_t *std; 1744 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1745 std != NULL; 1746 std = LIST_NEXT(std, hnext)) 1747 if (std->physaddr == td) 1748 break; 1749 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1750 "tl=0x%x pipe=%p, std=%p\n", sed, 1751 (int)LE(sed->ed.ed_headp), (int)LE(sed->ed.ed_tailp), 1752 pipe, std); 1753 usb_delay_ms(&sc->sc_bus, 2); 1754 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1755 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 1756 printf("ohci_close_pipe: pipe still not empty\n"); 1757 } 1758 #endif 1759 ohci_rem_ed(sed, head); 1760 splx(s); 1761 ohci_free_sed(sc, opipe->sed); 1762 } 1763 1764 /* 1765 * Abort a device request. 1766 * If this routine is called at splusb() it guarantees that the request 1767 * will be removed from the hardware scheduling and that the callback 1768 * for it will be called with USBD_CANCELLED status. 1769 * It's impossible to guarantee that the requested transfer will not 1770 * have happened since the hardware runs concurrently. 1771 * If the transaction has already happened we rely on the ordinary 1772 * interrupt processing to process it. 1773 */ 1774 void 1775 ohci_abort_xfer(xfer, status) 1776 usbd_xfer_handle xfer; 1777 usbd_status status; 1778 { 1779 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1780 ohci_soft_ed_t *sed; 1781 1782 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1783 1784 xfer->status = status; 1785 1786 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1787 1788 sed = opipe->sed; 1789 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1790 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); /* force hardware skip */ 1791 1792 #if 1 1793 if (xfer->device->bus->intr_context) { 1794 /* We have no process context, so we can't use tsleep(). */ 1795 timeout(ohci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1796 } else { 1797 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1798 KASSERT(intr_nesting_level == 0, 1799 ("ohci_abort_req in interrupt context")); 1800 #endif 1801 usb_delay_ms(opipe->pipe.device->bus, 1); 1802 ohci_abort_xfer_end(xfer); 1803 } 1804 #else 1805 delay(1000); 1806 ohci_abort_xfer_end(xfer); 1807 #endif 1808 } 1809 1810 void 1811 ohci_abort_xfer_end(v) 1812 void *v; 1813 { 1814 usbd_xfer_handle xfer = v; 1815 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1816 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1817 ohci_soft_ed_t *sed; 1818 ohci_soft_td_t *p, *n; 1819 int s; 1820 1821 s = splusb(); 1822 1823 p = xfer->hcpriv; 1824 #ifdef DIAGNOSTIC 1825 if (p == NULL) { 1826 printf("ohci_abort_xfer: hcpriv==0\n"); 1827 return; 1828 } 1829 #endif 1830 for (; p->xfer == xfer; p = n) { 1831 n = p->nexttd; 1832 ohci_free_std(sc, p); 1833 } 1834 1835 sed = opipe->sed; 1836 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 1837 (int)LE(p->physaddr), (int)LE(sed->ed.ed_tailp))); 1838 sed->ed.ed_headp = p->physaddr; /* unlink TDs */ 1839 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); /* remove hardware skip */ 1840 1841 usb_transfer_complete(xfer); 1842 1843 splx(s); 1844 } 1845 1846 /* 1847 * Data structures and routines to emulate the root hub. 1848 */ 1849 static usb_device_descriptor_t ohci_devd = { 1850 USB_DEVICE_DESCRIPTOR_SIZE, 1851 UDESC_DEVICE, /* type */ 1852 {0x00, 0x01}, /* USB version */ 1853 UCLASS_HUB, /* class */ 1854 USUBCLASS_HUB, /* subclass */ 1855 0, /* protocol */ 1856 64, /* max packet */ 1857 {0},{0},{0x00,0x01}, /* device id */ 1858 1,2,0, /* string indicies */ 1859 1 /* # of configurations */ 1860 }; 1861 1862 static usb_config_descriptor_t ohci_confd = { 1863 USB_CONFIG_DESCRIPTOR_SIZE, 1864 UDESC_CONFIG, 1865 {USB_CONFIG_DESCRIPTOR_SIZE + 1866 USB_INTERFACE_DESCRIPTOR_SIZE + 1867 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1868 1, 1869 1, 1870 0, 1871 UC_SELF_POWERED, 1872 0 /* max power */ 1873 }; 1874 1875 static usb_interface_descriptor_t ohci_ifcd = { 1876 USB_INTERFACE_DESCRIPTOR_SIZE, 1877 UDESC_INTERFACE, 1878 0, 1879 0, 1880 1, 1881 UCLASS_HUB, 1882 USUBCLASS_HUB, 1883 0, 1884 0 1885 }; 1886 1887 static usb_endpoint_descriptor_t ohci_endpd = { 1888 USB_ENDPOINT_DESCRIPTOR_SIZE, 1889 UDESC_ENDPOINT, 1890 UE_DIR_IN | OHCI_INTR_ENDPT, 1891 UE_INTERRUPT, 1892 {8, 0}, /* max packet */ 1893 255 1894 }; 1895 1896 static usb_hub_descriptor_t ohci_hubd = { 1897 USB_HUB_DESCRIPTOR_SIZE, 1898 UDESC_HUB, 1899 0, 1900 {0,0}, 1901 0, 1902 0, 1903 {0}, 1904 }; 1905 1906 static int 1907 ohci_str(p, l, s) 1908 usb_string_descriptor_t *p; 1909 int l; 1910 char *s; 1911 { 1912 int i; 1913 1914 if (l == 0) 1915 return (0); 1916 p->bLength = 2 * strlen(s) + 2; 1917 if (l == 1) 1918 return (1); 1919 p->bDescriptorType = UDESC_STRING; 1920 l -= 2; 1921 for (i = 0; s[i] && l > 1; i++, l -= 2) 1922 USETW2(p->bString[i], 0, s[i]); 1923 return (2*i+2); 1924 } 1925 1926 /* 1927 * Simulate a hardware hub by handling all the necessary requests. 1928 */ 1929 static usbd_status 1930 ohci_root_ctrl_transfer(xfer) 1931 usbd_xfer_handle xfer; 1932 { 1933 usbd_status err; 1934 1935 /* Insert last in queue. */ 1936 err = usb_insert_transfer(xfer); 1937 if (err) 1938 return (err); 1939 1940 /* Pipe isn't running, start first */ 1941 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1942 } 1943 1944 static usbd_status 1945 ohci_root_ctrl_start(xfer) 1946 usbd_xfer_handle xfer; 1947 { 1948 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 1949 usb_device_request_t *req; 1950 void *buf = NULL; 1951 int port, i; 1952 int s, len, value, index, l, totlen = 0; 1953 usb_port_status_t ps; 1954 usb_hub_descriptor_t hubd; 1955 usbd_status err; 1956 u_int32_t v; 1957 1958 #ifdef DIAGNOSTIC 1959 if (!(xfer->rqflags & URQ_REQUEST)) 1960 /* XXX panic */ 1961 return (USBD_INVAL); 1962 #endif 1963 req = &xfer->request; 1964 1965 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 1966 req->bmRequestType, req->bRequest)); 1967 1968 len = UGETW(req->wLength); 1969 value = UGETW(req->wValue); 1970 index = UGETW(req->wIndex); 1971 1972 if (len != 0) 1973 buf = KERNADDR(&xfer->dmabuf); 1974 1975 #define C(x,y) ((x) | ((y) << 8)) 1976 switch(C(req->bRequest, req->bmRequestType)) { 1977 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1978 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1979 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1980 /* 1981 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1982 * for the integrated root hub. 1983 */ 1984 break; 1985 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1986 if (len > 0) { 1987 *(u_int8_t *)buf = sc->sc_conf; 1988 totlen = 1; 1989 } 1990 break; 1991 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1992 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 1993 switch(value >> 8) { 1994 case UDESC_DEVICE: 1995 if ((value & 0xff) != 0) { 1996 err = USBD_IOERROR; 1997 goto ret; 1998 } 1999 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2000 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2001 memcpy(buf, &ohci_devd, l); 2002 break; 2003 case UDESC_CONFIG: 2004 if ((value & 0xff) != 0) { 2005 err = USBD_IOERROR; 2006 goto ret; 2007 } 2008 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2009 memcpy(buf, &ohci_confd, l); 2010 buf = (char *)buf + l; 2011 len -= l; 2012 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2013 totlen += l; 2014 memcpy(buf, &ohci_ifcd, l); 2015 buf = (char *)buf + l; 2016 len -= l; 2017 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2018 totlen += l; 2019 memcpy(buf, &ohci_endpd, l); 2020 break; 2021 case UDESC_STRING: 2022 if (len == 0) 2023 break; 2024 *(u_int8_t *)buf = 0; 2025 totlen = 1; 2026 switch (value & 0xff) { 2027 case 1: /* Vendor */ 2028 totlen = ohci_str(buf, len, sc->sc_vendor); 2029 break; 2030 case 2: /* Product */ 2031 totlen = ohci_str(buf, len, "OHCI root hub"); 2032 break; 2033 } 2034 break; 2035 default: 2036 err = USBD_IOERROR; 2037 goto ret; 2038 } 2039 break; 2040 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2041 if (len > 0) { 2042 *(u_int8_t *)buf = 0; 2043 totlen = 1; 2044 } 2045 break; 2046 case C(UR_GET_STATUS, UT_READ_DEVICE): 2047 if (len > 1) { 2048 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2049 totlen = 2; 2050 } 2051 break; 2052 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2053 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2054 if (len > 1) { 2055 USETW(((usb_status_t *)buf)->wStatus, 0); 2056 totlen = 2; 2057 } 2058 break; 2059 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2060 if (value >= USB_MAX_DEVICES) { 2061 err = USBD_IOERROR; 2062 goto ret; 2063 } 2064 sc->sc_addr = value; 2065 break; 2066 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2067 if (value != 0 && value != 1) { 2068 err = USBD_IOERROR; 2069 goto ret; 2070 } 2071 sc->sc_conf = value; 2072 break; 2073 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2074 break; 2075 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2076 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2077 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2078 err = USBD_IOERROR; 2079 goto ret; 2080 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2081 break; 2082 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2083 break; 2084 /* Hub requests */ 2085 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2086 break; 2087 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2088 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2089 "port=%d feature=%d\n", 2090 index, value)); 2091 if (index < 1 || index > sc->sc_noport) { 2092 err = USBD_IOERROR; 2093 goto ret; 2094 } 2095 port = OHCI_RH_PORT_STATUS(index); 2096 switch(value) { 2097 case UHF_PORT_ENABLE: 2098 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2099 break; 2100 case UHF_PORT_SUSPEND: 2101 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2102 break; 2103 case UHF_PORT_POWER: 2104 OWRITE4(sc, port, UPS_LOW_SPEED); 2105 break; 2106 case UHF_C_PORT_CONNECTION: 2107 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2108 break; 2109 case UHF_C_PORT_ENABLE: 2110 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2111 break; 2112 case UHF_C_PORT_SUSPEND: 2113 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2114 break; 2115 case UHF_C_PORT_OVER_CURRENT: 2116 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2117 break; 2118 case UHF_C_PORT_RESET: 2119 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2120 break; 2121 default: 2122 err = USBD_IOERROR; 2123 goto ret; 2124 } 2125 switch(value) { 2126 case UHF_C_PORT_CONNECTION: 2127 case UHF_C_PORT_ENABLE: 2128 case UHF_C_PORT_SUSPEND: 2129 case UHF_C_PORT_OVER_CURRENT: 2130 case UHF_C_PORT_RESET: 2131 /* Enable RHSC interrupt if condition is cleared. */ 2132 if ((OREAD4(sc, port) >> 16) == 0) 2133 ohci_rhsc_able(sc, 1); 2134 break; 2135 default: 2136 break; 2137 } 2138 break; 2139 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2140 if (value != 0) { 2141 err = USBD_IOERROR; 2142 goto ret; 2143 } 2144 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2145 hubd = ohci_hubd; 2146 hubd.bNbrPorts = sc->sc_noport; 2147 USETW(hubd.wHubCharacteristics, 2148 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2149 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2150 /* XXX overcurrent */ 2151 ); 2152 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2153 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2154 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2155 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2156 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2157 l = min(len, hubd.bDescLength); 2158 totlen = l; 2159 memcpy(buf, &hubd, l); 2160 break; 2161 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2162 if (len != 4) { 2163 err = USBD_IOERROR; 2164 goto ret; 2165 } 2166 memset(buf, 0, len); /* ? XXX */ 2167 totlen = len; 2168 break; 2169 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2170 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2171 index)); 2172 if (index < 1 || index > sc->sc_noport) { 2173 err = USBD_IOERROR; 2174 goto ret; 2175 } 2176 if (len != 4) { 2177 err = USBD_IOERROR; 2178 goto ret; 2179 } 2180 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2181 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2182 v)); 2183 USETW(ps.wPortStatus, v); 2184 USETW(ps.wPortChange, v >> 16); 2185 l = min(len, sizeof ps); 2186 memcpy(buf, &ps, l); 2187 totlen = l; 2188 break; 2189 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2190 err = USBD_IOERROR; 2191 goto ret; 2192 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2193 break; 2194 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2195 if (index < 1 || index > sc->sc_noport) { 2196 err = USBD_IOERROR; 2197 goto ret; 2198 } 2199 port = OHCI_RH_PORT_STATUS(index); 2200 switch(value) { 2201 case UHF_PORT_ENABLE: 2202 OWRITE4(sc, port, UPS_PORT_ENABLED); 2203 break; 2204 case UHF_PORT_SUSPEND: 2205 OWRITE4(sc, port, UPS_SUSPEND); 2206 break; 2207 case UHF_PORT_RESET: 2208 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2209 index)); 2210 OWRITE4(sc, port, UPS_RESET); 2211 for (i = 0; i < 10; i++) { 2212 usb_delay_ms(&sc->sc_bus, 10); 2213 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2214 break; 2215 } 2216 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2217 index, OREAD4(sc, port))); 2218 break; 2219 case UHF_PORT_POWER: 2220 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2221 "%d\n", index)); 2222 OWRITE4(sc, port, UPS_PORT_POWER); 2223 break; 2224 default: 2225 err = USBD_IOERROR; 2226 goto ret; 2227 } 2228 break; 2229 default: 2230 err = USBD_IOERROR; 2231 goto ret; 2232 } 2233 xfer->actlen = totlen; 2234 err = USBD_NORMAL_COMPLETION; 2235 ret: 2236 xfer->status = err; 2237 s = splusb(); 2238 usb_transfer_complete(xfer); 2239 splx(s); 2240 return (USBD_IN_PROGRESS); 2241 } 2242 2243 /* Abort a root control request. */ 2244 static void 2245 ohci_root_ctrl_abort(xfer) 2246 usbd_xfer_handle xfer; 2247 { 2248 /* Nothing to do, all transfers are synchronous. */ 2249 } 2250 2251 /* Close the root pipe. */ 2252 static void 2253 ohci_root_ctrl_close(pipe) 2254 usbd_pipe_handle pipe; 2255 { 2256 DPRINTF(("ohci_root_ctrl_close\n")); 2257 /* Nothing to do. */ 2258 } 2259 2260 static usbd_status 2261 ohci_root_intr_transfer(xfer) 2262 usbd_xfer_handle xfer; 2263 { 2264 usbd_status err; 2265 2266 /* Insert last in queue. */ 2267 err = usb_insert_transfer(xfer); 2268 if (err) 2269 return (err); 2270 2271 /* Pipe isn't running, start first */ 2272 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2273 } 2274 2275 static usbd_status 2276 ohci_root_intr_start(xfer) 2277 usbd_xfer_handle xfer; 2278 { 2279 usbd_pipe_handle pipe = xfer->pipe; 2280 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2281 2282 sc->sc_intrxfer = xfer; 2283 2284 return (USBD_IN_PROGRESS); 2285 } 2286 2287 /* Abort a root interrupt request. */ 2288 static void 2289 ohci_root_intr_abort(xfer) 2290 usbd_xfer_handle xfer; 2291 { 2292 int s; 2293 2294 if (xfer->pipe->intrxfer == xfer) { 2295 DPRINTF(("ohci_root_intr_abort: remove\n")); 2296 xfer->pipe->intrxfer = NULL; 2297 } 2298 xfer->status = USBD_CANCELLED; 2299 s = splusb(); 2300 usb_transfer_complete(xfer); 2301 splx(s); 2302 } 2303 2304 /* Close the root pipe. */ 2305 static void 2306 ohci_root_intr_close(pipe) 2307 usbd_pipe_handle pipe; 2308 { 2309 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2310 2311 DPRINTF(("ohci_root_intr_close\n")); 2312 2313 sc->sc_intrxfer = NULL; 2314 } 2315 2316 /************************/ 2317 2318 static usbd_status 2319 ohci_device_ctrl_transfer(xfer) 2320 usbd_xfer_handle xfer; 2321 { 2322 usbd_status err; 2323 2324 /* Insert last in queue. */ 2325 err = usb_insert_transfer(xfer); 2326 if (err) 2327 return (err); 2328 2329 /* Pipe isn't running, start first */ 2330 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2331 } 2332 2333 static usbd_status 2334 ohci_device_ctrl_start(xfer) 2335 usbd_xfer_handle xfer; 2336 { 2337 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2338 usbd_status err; 2339 2340 #ifdef DIAGNOSTIC 2341 if (!(xfer->rqflags & URQ_REQUEST)) { 2342 /* XXX panic */ 2343 printf("ohci_device_ctrl_transfer: not a request\n"); 2344 return (USBD_INVAL); 2345 } 2346 #endif 2347 2348 err = ohci_device_request(xfer); 2349 if (err) 2350 return (err); 2351 2352 if (sc->sc_bus.use_polling) 2353 ohci_waitintr(sc, xfer); 2354 return (USBD_IN_PROGRESS); 2355 } 2356 2357 /* Abort a device control request. */ 2358 static void 2359 ohci_device_ctrl_abort(xfer) 2360 usbd_xfer_handle xfer; 2361 { 2362 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2363 ohci_abort_xfer(xfer, USBD_CANCELLED); 2364 } 2365 2366 /* Close a device control pipe. */ 2367 static void 2368 ohci_device_ctrl_close(pipe) 2369 usbd_pipe_handle pipe; 2370 { 2371 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2372 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2373 2374 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2375 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2376 ohci_free_std(sc, opipe->tail.td); 2377 } 2378 2379 /************************/ 2380 2381 static void 2382 ohci_device_clear_toggle(pipe) 2383 usbd_pipe_handle pipe; 2384 { 2385 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2386 2387 opipe->sed->ed.ed_headp &= LE(~OHCI_TOGGLECARRY); 2388 } 2389 2390 static void 2391 ohci_noop(pipe) 2392 usbd_pipe_handle pipe; 2393 { 2394 } 2395 2396 static usbd_status 2397 ohci_device_bulk_transfer(xfer) 2398 usbd_xfer_handle xfer; 2399 { 2400 usbd_status err; 2401 2402 /* Insert last in queue. */ 2403 err = usb_insert_transfer(xfer); 2404 if (err) 2405 return (err); 2406 2407 /* Pipe isn't running, start first */ 2408 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2409 } 2410 2411 static usbd_status 2412 ohci_device_bulk_start(xfer) 2413 usbd_xfer_handle xfer; 2414 { 2415 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2416 usbd_device_handle dev = opipe->pipe.device; 2417 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2418 int addr = dev->address; 2419 ohci_soft_td_t *data, *tail, *tdp; 2420 ohci_soft_ed_t *sed; 2421 int s, len, isread, endpt; 2422 usbd_status err; 2423 2424 #ifdef DIAGNOSTIC 2425 if (xfer->rqflags & URQ_REQUEST) { 2426 /* XXX panic */ 2427 printf("ohci_device_bulk_start: a request\n"); 2428 return (USBD_INVAL); 2429 } 2430 #endif 2431 2432 len = xfer->length; 2433 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2434 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2435 sed = opipe->sed; 2436 2437 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2438 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2439 endpt)); 2440 2441 opipe->u.bulk.isread = isread; 2442 opipe->u.bulk.length = len; 2443 2444 /* Update device address */ 2445 sed->ed.ed_flags = LE( 2446 (LE(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2447 OHCI_ED_SET_FA(addr)); 2448 2449 /* Allocate a chain of new TDs (including a new tail). */ 2450 data = opipe->tail.td; 2451 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags, 2452 &xfer->dmabuf, data, &tail); 2453 if (err) 2454 return (err); 2455 2456 tail->xfer = NULL; 2457 xfer->hcpriv = data; 2458 2459 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2460 "td_cbp=0x%08x td_be=0x%08x\n", 2461 (int)LE(sed->ed.ed_flags), (int)LE(data->td.td_flags), 2462 (int)LE(data->td.td_cbp), (int)LE(data->td.td_be))); 2463 2464 #ifdef OHCI_DEBUG 2465 if (ohcidebug > 4) { 2466 ohci_dump_ed(sed); 2467 ohci_dump_tds(data); 2468 } 2469 #endif 2470 2471 /* Insert ED in schedule */ 2472 s = splusb(); 2473 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2474 tdp->xfer = xfer; 2475 } 2476 sed->ed.ed_tailp = LE(tail->physaddr); 2477 opipe->tail.td = tail; 2478 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2479 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2480 if (xfer->timeout && !sc->sc_bus.use_polling) { 2481 usb_timeout(ohci_timeout, xfer, 2482 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 2483 } 2484 2485 #if 0 2486 /* This goes wrong if we are too slow. */ 2487 if (ohcidebug > 5) { 2488 usb_delay_ms(&sc->sc_bus, 5); 2489 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2490 OREAD4(sc, OHCI_COMMAND_STATUS))); 2491 ohci_dump_ed(sed); 2492 ohci_dump_tds(data); 2493 } 2494 #endif 2495 2496 splx(s); 2497 2498 return (USBD_IN_PROGRESS); 2499 } 2500 2501 static void 2502 ohci_device_bulk_abort(xfer) 2503 usbd_xfer_handle xfer; 2504 { 2505 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2506 ohci_abort_xfer(xfer, USBD_CANCELLED); 2507 } 2508 2509 /* 2510 * Close a device bulk pipe. 2511 */ 2512 static void 2513 ohci_device_bulk_close(pipe) 2514 usbd_pipe_handle pipe; 2515 { 2516 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2517 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2518 2519 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2520 ohci_close_pipe(pipe, sc->sc_bulk_head); 2521 ohci_free_std(sc, opipe->tail.td); 2522 } 2523 2524 /************************/ 2525 2526 static usbd_status 2527 ohci_device_intr_transfer(xfer) 2528 usbd_xfer_handle xfer; 2529 { 2530 usbd_status err; 2531 2532 /* Insert last in queue. */ 2533 err = usb_insert_transfer(xfer); 2534 if (err) 2535 return (err); 2536 2537 /* Pipe isn't running, start first */ 2538 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2539 } 2540 2541 static usbd_status 2542 ohci_device_intr_start(xfer) 2543 usbd_xfer_handle xfer; 2544 { 2545 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2546 usbd_device_handle dev = opipe->pipe.device; 2547 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2548 ohci_soft_ed_t *sed = opipe->sed; 2549 ohci_soft_td_t *data, *tail; 2550 int len; 2551 int s; 2552 2553 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2554 "flags=%d priv=%p\n", 2555 xfer, xfer->length, xfer->flags, xfer->priv)); 2556 2557 #ifdef DIAGNOSTIC 2558 if (xfer->rqflags & URQ_REQUEST) 2559 panic("ohci_device_intr_transfer: a request\n"); 2560 #endif 2561 2562 len = xfer->length; 2563 2564 data = opipe->tail.td; 2565 tail = ohci_alloc_std(sc); 2566 if (tail == NULL) 2567 return (USBD_NOMEM); 2568 tail->xfer = NULL; 2569 2570 data->td.td_flags = LE( 2571 OHCI_TD_IN | OHCI_TD_NOCC | 2572 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2573 if (xfer->flags & USBD_SHORT_XFER_OK) 2574 data->td.td_flags |= LE(OHCI_TD_R); 2575 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 2576 data->nexttd = tail; 2577 data->td.td_nexttd = LE(tail->physaddr); 2578 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 2579 data->len = len; 2580 data->xfer = xfer; 2581 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2582 xfer->hcpriv = data; 2583 2584 #ifdef OHCI_DEBUG 2585 if (ohcidebug > 5) { 2586 DPRINTF(("ohci_device_intr_transfer:\n")); 2587 ohci_dump_ed(sed); 2588 ohci_dump_tds(data); 2589 } 2590 #endif 2591 2592 /* Insert ED in schedule */ 2593 s = splusb(); 2594 sed->ed.ed_tailp = LE(tail->physaddr); 2595 opipe->tail.td = tail; 2596 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2597 2598 #if 0 2599 /* 2600 * This goes horribly wrong, printing thousands of descriptors, 2601 * because false references are followed due to the fact that the 2602 * TD is gone. 2603 */ 2604 if (ohcidebug > 5) { 2605 usb_delay_ms(&sc->sc_bus, 5); 2606 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2607 OREAD4(sc, OHCI_COMMAND_STATUS))); 2608 ohci_dump_ed(sed); 2609 ohci_dump_tds(data); 2610 } 2611 #endif 2612 splx(s); 2613 2614 return (USBD_IN_PROGRESS); 2615 } 2616 2617 /* Abort a device control request. */ 2618 static void 2619 ohci_device_intr_abort(xfer) 2620 usbd_xfer_handle xfer; 2621 { 2622 if (xfer->pipe->intrxfer == xfer) { 2623 DPRINTF(("ohci_device_intr_abort: remove\n")); 2624 xfer->pipe->intrxfer = NULL; 2625 } 2626 ohci_abort_xfer(xfer, USBD_CANCELLED); 2627 } 2628 2629 /* Close a device interrupt pipe. */ 2630 static void 2631 ohci_device_intr_close(pipe) 2632 usbd_pipe_handle pipe; 2633 { 2634 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2635 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2636 int nslots = opipe->u.intr.nslots; 2637 int pos = opipe->u.intr.pos; 2638 int j; 2639 ohci_soft_ed_t *p, *sed = opipe->sed; 2640 int s; 2641 2642 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2643 pipe, nslots, pos)); 2644 s = splusb(); 2645 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 2646 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 2647 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 2648 usb_delay_ms(&sc->sc_bus, 2); 2649 2650 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2651 ; 2652 #ifdef DIAGNOSTIC 2653 if (p == NULL) 2654 panic("ohci_device_intr_close: ED not found\n"); 2655 #endif 2656 p->next = sed->next; 2657 p->ed.ed_nexted = sed->ed.ed_nexted; 2658 splx(s); 2659 2660 for (j = 0; j < nslots; j++) 2661 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2662 2663 ohci_free_std(sc, opipe->tail.td); 2664 ohci_free_sed(sc, opipe->sed); 2665 } 2666 2667 static usbd_status 2668 ohci_device_setintr(sc, opipe, ival) 2669 ohci_softc_t *sc; 2670 struct ohci_pipe *opipe; 2671 int ival; 2672 { 2673 int i, j, s, best; 2674 u_int npoll, slow, shigh, nslots; 2675 u_int bestbw, bw; 2676 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2677 2678 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2679 if (ival == 0) { 2680 printf("ohci_setintr: 0 interval\n"); 2681 return (USBD_INVAL); 2682 } 2683 2684 npoll = OHCI_NO_INTRS; 2685 while (npoll > ival) 2686 npoll /= 2; 2687 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2688 2689 /* 2690 * We now know which level in the tree the ED must go into. 2691 * Figure out which slot has most bandwidth left over. 2692 * Slots to examine: 2693 * npoll 2694 * 1 0 2695 * 2 1 2 2696 * 4 3 4 5 6 2697 * 8 7 8 9 10 11 12 13 14 2698 * N (N-1) .. (N-1+N-1) 2699 */ 2700 slow = npoll-1; 2701 shigh = slow + npoll; 2702 nslots = OHCI_NO_INTRS / npoll; 2703 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2704 bw = 0; 2705 for (j = 0; j < nslots; j++) 2706 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2707 if (bw < bestbw) { 2708 best = i; 2709 bestbw = bw; 2710 } 2711 } 2712 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2713 best, slow, shigh, bestbw)); 2714 2715 s = splusb(); 2716 hsed = sc->sc_eds[best]; 2717 sed->next = hsed->next; 2718 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2719 hsed->next = sed; 2720 hsed->ed.ed_nexted = LE(sed->physaddr); 2721 splx(s); 2722 2723 for (j = 0; j < nslots; j++) 2724 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2725 opipe->u.intr.nslots = nslots; 2726 opipe->u.intr.pos = best; 2727 2728 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2729 return (USBD_NORMAL_COMPLETION); 2730 } 2731 2732 /***********************/ 2733 2734 usbd_status 2735 ohci_device_isoc_transfer(xfer) 2736 usbd_xfer_handle xfer; 2737 { 2738 usbd_status err; 2739 2740 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2741 2742 /* Put it on our queue, */ 2743 err = usb_insert_transfer(xfer); 2744 2745 /* bail out on error, */ 2746 if (err && err != USBD_IN_PROGRESS) 2747 return (err); 2748 2749 /* XXX should check inuse here */ 2750 2751 /* insert into schedule, */ 2752 ohci_device_isoc_enter(xfer); 2753 2754 /* and put on interrupt list if the pipe wasn't running */ 2755 if (!err) 2756 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2757 2758 return (err); 2759 } 2760 2761 void 2762 ohci_device_isoc_enter(xfer) 2763 usbd_xfer_handle xfer; 2764 { 2765 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2766 usbd_device_handle dev = opipe->pipe.device; 2767 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2768 ohci_soft_ed_t *sed = opipe->sed; 2769 struct iso *iso = &opipe->u.iso; 2770 ohci_soft_itd_t *sitd, *nsitd; 2771 ohci_physaddr_t buf, offs; 2772 int i, ncur, nframes; 2773 int ncross; 2774 int s; 2775 2776 s = splusb(); 2777 sitd = opipe->tail.itd; 2778 buf = DMAADDR(&xfer->dmabuf); 2779 sitd->itd.itd_bp0 = LE(buf & OHCI_ITD_PAGE_MASK); 2780 nframes = xfer->nframes; 2781 offs = buf & OHCI_ITD_OFFSET_MASK; 2782 for (i = ncur = 0; i < nframes; i++, ncur++) { 2783 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2784 ncross > 1) { /* too many page crossings */ 2785 2786 nsitd = ohci_alloc_sitd(sc); 2787 if (nsitd == NULL) { 2788 /* XXX what now? */ 2789 return; 2790 } 2791 sitd->nextitd = nsitd; 2792 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2793 sitd->itd.itd_flags = LE( 2794 OHCI_ITD_NOCC | 2795 OHCI_ITD_SET_SF(iso->next) | 2796 OHCI_ITD_NOINTR | 2797 OHCI_ITD_SET_FC(OHCI_ITD_NOFFSET)); 2798 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2799 nsitd->itd.itd_bp0 = LE((buf + offs) & OHCI_ITD_PAGE_MASK); 2800 sitd = nsitd; 2801 iso->next = iso->next + ncur; 2802 ncur = 0; 2803 ncross = 0; 2804 } 2805 /* XXX byte order */ 2806 sitd->itd.itd_offset[i] = 2807 offs | (ncross == 1 ? OHCI_ITD_PAGE_SELECT : 0); 2808 offs += xfer->frlengths[i]; 2809 /* XXX update ncross */ 2810 } 2811 nsitd = ohci_alloc_sitd(sc); 2812 if (nsitd == NULL) { 2813 /* XXX what now? */ 2814 return; 2815 } 2816 sitd->nextitd = nsitd; 2817 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2818 sitd->itd.itd_flags = LE( 2819 OHCI_ITD_NOCC | 2820 OHCI_ITD_SET_SF(iso->next) | 2821 OHCI_ITD_SET_DI(0) | 2822 OHCI_ITD_SET_FC(ncur)); 2823 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2824 iso->next = iso->next + ncur; 2825 2826 opipe->tail.itd = nsitd; 2827 sed->ed.ed_tailp = LE(nsitd->physaddr); 2828 /* XXX update ED */ 2829 splx(s); 2830 } 2831 2832 usbd_status 2833 ohci_device_isoc_start(xfer) 2834 usbd_xfer_handle xfer; 2835 { 2836 printf("ohci_device_isoc_start: not implemented\n"); 2837 return (USBD_INVAL); 2838 } 2839 2840 void 2841 ohci_device_isoc_abort(xfer) 2842 usbd_xfer_handle xfer; 2843 { 2844 } 2845 2846 void 2847 ohci_device_isoc_done(xfer) 2848 usbd_xfer_handle xfer; 2849 { 2850 printf("ohci_device_isoc_done: not implemented\n"); 2851 } 2852 2853 usbd_status 2854 ohci_setup_isoc(pipe) 2855 usbd_pipe_handle pipe; 2856 { 2857 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2858 struct iso *iso = &opipe->u.iso; 2859 2860 iso->next = -1; 2861 iso->inuse = 0; 2862 2863 return (USBD_NORMAL_COMPLETION); 2864 } 2865 2866 void 2867 ohci_device_isoc_close(pipe) 2868 usbd_pipe_handle pipe; 2869 { 2870 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2871 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2872 2873 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 2874 ohci_close_pipe(pipe, sc->sc_isoc_head); 2875 ohci_free_sitd(sc, opipe->tail.itd); 2876 } 2877
Indexes created Thu Sep 25 16:09:42 GMT 2025