ohci.c revision 1.61
1 /* $NetBSD: ohci.c,v 1.61 2000/01/16 13:12:06 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_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 157 static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 158 static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 159 static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 160 161 static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 162 static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 163 static void ohci_root_intr_abort __P((usbd_xfer_handle)); 164 static void ohci_root_intr_close __P((usbd_pipe_handle)); 165 static void ohci_root_intr_done __P((usbd_xfer_handle)); 166 167 static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 168 static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 169 static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 170 static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 171 static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 172 173 static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 174 static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 175 static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 176 static void ohci_device_bulk_close __P((usbd_pipe_handle)); 177 static void ohci_device_bulk_done __P((usbd_xfer_handle)); 178 179 static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 180 static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 181 static void ohci_device_intr_abort __P((usbd_xfer_handle)); 182 static void ohci_device_intr_close __P((usbd_pipe_handle)); 183 static void ohci_device_intr_done __P((usbd_xfer_handle)); 184 185 static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 186 static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 187 static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 188 static void ohci_device_isoc_close __P((usbd_pipe_handle)); 189 static void ohci_device_isoc_done __P((usbd_xfer_handle)); 190 191 static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 192 struct ohci_pipe *pipe, int ival)); 193 194 static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 195 196 static void ohci_timeout __P((void *)); 197 static void ohci_rhsc_able __P((ohci_softc_t *, int)); 198 199 static void ohci_close_pipe __P((usbd_pipe_handle pipe, 200 ohci_soft_ed_t *head)); 201 static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 202 usbd_status status)); 203 static void ohci_abort_xfer_end __P((void *)); 204 205 static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 206 static void ohci_noop __P((usbd_pipe_handle pipe)); 207 208 #ifdef OHCI_DEBUG 209 static void ohci_dumpregs __P((ohci_softc_t *)); 210 static void ohci_dump_tds __P((ohci_soft_td_t *)); 211 static void ohci_dump_td __P((ohci_soft_td_t *)); 212 static void ohci_dump_ed __P((ohci_soft_ed_t *)); 213 #endif 214 215 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 216 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 217 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 218 219 /* Reverse the bits in a value 0 .. 31 */ 220 static u_int8_t revbits[OHCI_NO_INTRS] = 221 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 222 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 223 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 224 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 225 226 struct ohci_pipe { 227 struct usbd_pipe pipe; 228 ohci_soft_ed_t *sed; 229 union { 230 ohci_soft_td_t *td; 231 ohci_soft_itd_t *itd; 232 } tail; 233 /* Info needed for different pipe kinds. */ 234 union { 235 /* Control pipe */ 236 struct { 237 usb_dma_t reqdma; 238 u_int length; 239 ohci_soft_td_t *setup, *data, *stat; 240 } ctl; 241 /* Interrupt pipe */ 242 struct { 243 int nslots; 244 int pos; 245 } intr; 246 /* Bulk pipe */ 247 struct { 248 u_int length; 249 int isread; 250 } bulk; 251 /* Iso pipe */ 252 struct iso { 253 int next, inuse; 254 } iso; 255 } u; 256 }; 257 258 #define OHCI_INTR_ENDPT 1 259 260 static struct usbd_bus_methods ohci_bus_methods = { 261 ohci_open, 262 ohci_poll, 263 ohci_allocm, 264 ohci_freem, 265 }; 266 267 static struct usbd_pipe_methods ohci_root_ctrl_methods = { 268 ohci_root_ctrl_transfer, 269 ohci_root_ctrl_start, 270 ohci_root_ctrl_abort, 271 ohci_root_ctrl_close, 272 ohci_noop, 273 0, 274 }; 275 276 static struct usbd_pipe_methods ohci_root_intr_methods = { 277 ohci_root_intr_transfer, 278 ohci_root_intr_start, 279 ohci_root_intr_abort, 280 ohci_root_intr_close, 281 ohci_noop, 282 ohci_root_intr_done, 283 }; 284 285 static struct usbd_pipe_methods ohci_device_ctrl_methods = { 286 ohci_device_ctrl_transfer, 287 ohci_device_ctrl_start, 288 ohci_device_ctrl_abort, 289 ohci_device_ctrl_close, 290 ohci_noop, 291 ohci_device_ctrl_done, 292 }; 293 294 static struct usbd_pipe_methods ohci_device_intr_methods = { 295 ohci_device_intr_transfer, 296 ohci_device_intr_start, 297 ohci_device_intr_abort, 298 ohci_device_intr_close, 299 ohci_device_clear_toggle, 300 ohci_device_intr_done, 301 }; 302 303 static struct usbd_pipe_methods ohci_device_bulk_methods = { 304 ohci_device_bulk_transfer, 305 ohci_device_bulk_start, 306 ohci_device_bulk_abort, 307 ohci_device_bulk_close, 308 ohci_device_clear_toggle, 309 ohci_device_bulk_done, 310 }; 311 312 static struct usbd_pipe_methods ohci_device_isoc_methods = { 313 ohci_device_isoc_transfer, 314 ohci_device_isoc_start, 315 ohci_device_isoc_abort, 316 ohci_device_isoc_close, 317 ohci_noop, 318 ohci_device_isoc_done, 319 }; 320 321 #if defined(__NetBSD__) || defined(__OpenBSD__) 322 int 323 ohci_activate(self, act) 324 device_ptr_t self; 325 enum devact act; 326 { 327 struct ohci_softc *sc = (struct ohci_softc *)self; 328 int rv = 0; 329 330 switch (act) { 331 case DVACT_ACTIVATE: 332 return (EOPNOTSUPP); 333 break; 334 335 case DVACT_DEACTIVATE: 336 if (sc->sc_child != NULL) 337 rv = config_deactivate(sc->sc_child); 338 break; 339 } 340 return (rv); 341 } 342 343 int 344 ohci_detach(sc, flags) 345 struct ohci_softc *sc; 346 int flags; 347 { 348 int rv = 0; 349 350 if (sc->sc_child != NULL) 351 rv = config_detach(sc->sc_child, flags); 352 353 if (rv != 0) 354 return (rv); 355 356 powerhook_disestablish(sc->sc_powerhook); 357 shutdownhook_disestablish(sc->sc_shutdownhook); 358 359 /* free data structures XXX */ 360 361 return (rv); 362 } 363 #endif 364 365 ohci_soft_ed_t * 366 ohci_alloc_sed(sc) 367 ohci_softc_t *sc; 368 { 369 ohci_soft_ed_t *sed; 370 usbd_status err; 371 int i, offs; 372 usb_dma_t dma; 373 374 if (sc->sc_freeeds == NULL) { 375 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 376 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 377 OHCI_ED_ALIGN, &dma); 378 if (err) 379 return (0); 380 for(i = 0; i < OHCI_SED_CHUNK; i++) { 381 offs = i * OHCI_SED_SIZE; 382 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 383 sed->physaddr = DMAADDR(&dma) + offs; 384 sed->next = sc->sc_freeeds; 385 sc->sc_freeeds = sed; 386 } 387 } 388 sed = sc->sc_freeeds; 389 sc->sc_freeeds = sed->next; 390 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 391 sed->next = 0; 392 return (sed); 393 } 394 395 void 396 ohci_free_sed(sc, sed) 397 ohci_softc_t *sc; 398 ohci_soft_ed_t *sed; 399 { 400 sed->next = sc->sc_freeeds; 401 sc->sc_freeeds = sed; 402 } 403 404 ohci_soft_td_t * 405 ohci_alloc_std(sc) 406 ohci_softc_t *sc; 407 { 408 ohci_soft_td_t *std; 409 usbd_status err; 410 int i, offs; 411 usb_dma_t dma; 412 413 if (sc->sc_freetds == NULL) { 414 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 415 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 416 OHCI_TD_ALIGN, &dma); 417 if (err) 418 return (0); 419 for(i = 0; i < OHCI_STD_CHUNK; i++) { 420 offs = i * OHCI_STD_SIZE; 421 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 422 std->physaddr = DMAADDR(&dma) + offs; 423 std->nexttd = sc->sc_freetds; 424 sc->sc_freetds = std; 425 } 426 } 427 std = sc->sc_freetds; 428 sc->sc_freetds = std->nexttd; 429 memset(&std->td, 0, sizeof(ohci_td_t)); 430 std->nexttd = 0; 431 return (std); 432 } 433 434 void 435 ohci_free_std(sc, std) 436 ohci_softc_t *sc; 437 ohci_soft_td_t *std; 438 { 439 std->nexttd = sc->sc_freetds; 440 sc->sc_freetds = std; 441 } 442 443 usbd_status 444 ohci_alloc_std_chain(opipe, sc, len, rd, flags, dma, sp, ep) 445 struct ohci_pipe *opipe; 446 ohci_softc_t *sc; 447 int len, rd; 448 u_int16_t flags; 449 usb_dma_t *dma; 450 ohci_soft_td_t *sp, **ep; 451 { 452 ohci_soft_td_t *next, *cur; 453 ohci_physaddr_t dataphys, dataphysend; 454 u_int32_t intr, tdflags; 455 int curlen; 456 457 DPRINTFN(len < 4096,("ohci_alloc_std_chain: start len=%d\n", len)); 458 cur = sp; 459 dataphys = DMAADDR(dma); 460 dataphysend = OHCI_PAGE(dataphys + len - 1); 461 tdflags = 462 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 463 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | 464 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0); 465 466 for (;;) { 467 next = ohci_alloc_std(sc); 468 if (next == 0) 469 goto nomem; 470 471 /* The OHCI hardware can handle at most one page crossing. */ 472 if (OHCI_PAGE(dataphys) == dataphysend || 473 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 474 /* we can handle it in this TD */ 475 curlen = len; 476 } else { 477 /* must use multiple TDs, fill as much as possible. */ 478 curlen = 2 * OHCI_PAGE_SIZE - 479 (dataphys & (OHCI_PAGE_SIZE-1)); 480 } 481 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 482 "dataphysend=0x%08x len=%d curlen=%d\n", 483 dataphys, dataphysend, 484 len, curlen)); 485 len -= curlen; 486 487 intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR; 488 cur->td.td_flags = LE(tdflags | intr); 489 cur->td.td_cbp = LE(dataphys); 490 cur->nexttd = next; 491 cur->td.td_nexttd = LE(next->physaddr); 492 cur->td.td_be = LE(dataphys + curlen - 1); 493 cur->len = curlen; 494 cur->flags = OHCI_ADD_LEN; 495 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 496 dataphys, dataphys + curlen - 1)); 497 if (len == 0) 498 break; 499 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 500 dataphys += curlen; 501 cur = next; 502 } 503 if ((flags & USBD_FORCE_SHORT_XFER) && 504 len % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 505 /* Force a 0 length transfer at the end. */ 506 next = ohci_alloc_std(sc); 507 if (next == 0) 508 goto nomem; 509 510 cur->td.td_flags = LE(tdflags | OHCI_TD_SET_DI(1)); 511 cur->td.td_cbp = 0; /* indicate 0 length packet */ 512 cur->nexttd = next; 513 cur->td.td_nexttd = LE(next->physaddr); 514 cur->td.td_be = LE(dataphys - 1); 515 cur->len = 0; 516 cur->flags = 0; 517 cur = next; 518 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 519 } 520 cur->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 521 *ep = next; 522 523 return (USBD_NORMAL_COMPLETION); 524 525 nomem: 526 /* XXX free chain */ 527 return (USBD_NOMEM); 528 } 529 530 #if 0 531 static void 532 ohci_free_std_chain(sc, std, stdend) 533 ohci_softc_t *sc; 534 ohci_soft_td_t *std; 535 ohci_soft_td_t *stdend; 536 { 537 ohci_soft_td_t *p; 538 539 for (; std != stdend; std = p) { 540 p = std->nexttd; 541 ohci_free_std(sc, std); 542 } 543 } 544 #endif 545 546 ohci_soft_itd_t * 547 ohci_alloc_sitd(sc) 548 ohci_softc_t *sc; 549 { 550 ohci_soft_itd_t *sitd; 551 usbd_status err; 552 int i, offs; 553 usb_dma_t dma; 554 555 if (sc->sc_freeitds == NULL) { 556 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 557 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 558 OHCI_TD_ALIGN, &dma); 559 if (err) 560 return (0); 561 for(i = 0; i < OHCI_STD_CHUNK; i++) { 562 offs = i * OHCI_STD_SIZE; 563 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 564 sitd->physaddr = DMAADDR(&dma) + offs; 565 sitd->nextitd = sc->sc_freeitds; 566 sc->sc_freeitds = sitd; 567 } 568 } 569 sitd = sc->sc_freeitds; 570 sc->sc_freeitds = sitd->nextitd; 571 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 572 sitd->nextitd = 0; 573 return (sitd); 574 } 575 576 void 577 ohci_free_sitd(sc, sitd) 578 ohci_softc_t *sc; 579 ohci_soft_itd_t *sitd; 580 { 581 sitd->nextitd = sc->sc_freeitds; 582 sc->sc_freeitds = sitd; 583 } 584 585 usbd_status 586 ohci_init(sc) 587 ohci_softc_t *sc; 588 { 589 ohci_soft_ed_t *sed, *psed; 590 usbd_status err; 591 int i; 592 u_int32_t s, ctl, ival, hcr, fm, per, rev; 593 594 DPRINTF(("ohci_init: start\n")); 595 #if defined(__OpenBSD__) 596 printf(","); 597 #else 598 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 599 #endif 600 rev = OREAD4(sc, OHCI_REVISION); 601 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 602 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 603 604 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 605 printf("%s: unsupported OHCI revision\n", 606 USBDEVNAME(sc->sc_bus.bdev)); 607 sc->sc_bus.usbrev = USBREV_UNKNOWN; 608 return (USBD_INVAL); 609 } 610 sc->sc_bus.usbrev = USBREV_1_0; 611 612 for (i = 0; i < OHCI_HASH_SIZE; i++) 613 LIST_INIT(&sc->sc_hash_tds[i]); 614 615 /* Allocate the HCCA area. */ 616 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 617 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 618 if (err) 619 return (err); 620 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 621 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 622 623 sc->sc_eintrs = OHCI_NORMAL_INTRS; 624 625 /* Allocate dummy ED that starts the control list. */ 626 sc->sc_ctrl_head = ohci_alloc_sed(sc); 627 if (sc->sc_ctrl_head == NULL) { 628 err = USBD_NOMEM; 629 goto bad1; 630 } 631 sc->sc_ctrl_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 632 633 /* Allocate dummy ED that starts the bulk list. */ 634 sc->sc_bulk_head = ohci_alloc_sed(sc); 635 if (sc->sc_bulk_head == NULL) { 636 err = USBD_NOMEM; 637 goto bad2; 638 } 639 sc->sc_bulk_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 640 641 /* Allocate dummy ED that starts the isochronous list. */ 642 sc->sc_isoc_head = ohci_alloc_sed(sc); 643 if (sc->sc_isoc_head == NULL) { 644 err = USBD_NOMEM; 645 goto bad3; 646 } 647 sc->sc_isoc_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 648 649 /* Allocate all the dummy EDs that make up the interrupt tree. */ 650 for (i = 0; i < OHCI_NO_EDS; i++) { 651 sed = ohci_alloc_sed(sc); 652 if (sed == NULL) { 653 while (--i >= 0) 654 ohci_free_sed(sc, sc->sc_eds[i]); 655 err = USBD_NOMEM; 656 goto bad4; 657 } 658 /* All ED fields are set to 0. */ 659 sc->sc_eds[i] = sed; 660 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 661 if (i != 0) 662 psed = sc->sc_eds[(i-1) / 2]; 663 else 664 psed= sc->sc_isoc_head; 665 sed->next = psed; 666 sed->ed.ed_nexted = LE(psed->physaddr); 667 } 668 /* 669 * Fill HCCA interrupt table. The bit reversal is to get 670 * the tree set up properly to spread the interrupts. 671 */ 672 for (i = 0; i < OHCI_NO_INTRS; i++) 673 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 674 LE(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 675 676 /* Determine in what context we are running. */ 677 ctl = OREAD4(sc, OHCI_CONTROL); 678 if (ctl & OHCI_IR) { 679 /* SMM active, request change */ 680 DPRINTF(("ohci_init: SMM active, request owner change\n")); 681 s = OREAD4(sc, OHCI_COMMAND_STATUS); 682 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 683 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 684 usb_delay_ms(&sc->sc_bus, 1); 685 ctl = OREAD4(sc, OHCI_CONTROL); 686 } 687 if ((ctl & OHCI_IR) == 0) { 688 printf("%s: SMM does not respond, resetting\n", 689 USBDEVNAME(sc->sc_bus.bdev)); 690 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 691 goto reset; 692 } 693 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 694 /* BIOS started controller. */ 695 DPRINTF(("ohci_init: BIOS active\n")); 696 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 697 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 698 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 699 } 700 } else { 701 DPRINTF(("ohci_init: cold started\n")); 702 reset: 703 /* Controller was cold started. */ 704 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 705 } 706 707 /* 708 * This reset should not be necessary according to the OHCI spec, but 709 * without it some controllers do not start. 710 */ 711 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 712 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 713 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 714 715 /* We now own the host controller and the bus has been reset. */ 716 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 717 718 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 719 /* Nominal time for a reset is 10 us. */ 720 for (i = 0; i < 10; i++) { 721 delay(10); 722 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 723 if (!hcr) 724 break; 725 } 726 if (hcr) { 727 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 728 err = USBD_IOERROR; 729 goto bad5; 730 } 731 #ifdef OHCI_DEBUG 732 if (ohcidebug > 15) 733 ohci_dumpregs(sc); 734 #endif 735 736 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 737 738 /* Set up HC registers. */ 739 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 740 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 741 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 742 /* disable all interrupts and then switch on all desired interrupts */ 743 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 744 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 745 /* switch on desired functional features */ 746 ctl = OREAD4(sc, OHCI_CONTROL); 747 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 748 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 749 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 750 /* And finally start it! */ 751 OWRITE4(sc, OHCI_CONTROL, ctl); 752 753 /* 754 * The controller is now OPERATIONAL. Set a some final 755 * registers that should be set earlier, but that the 756 * controller ignores when in the SUSPEND state. 757 */ 758 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 759 fm |= OHCI_FSMPS(ival) | ival; 760 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 761 per = OHCI_PERIODIC(ival); /* 90% periodic */ 762 OWRITE4(sc, OHCI_PERIODIC_START, per); 763 764 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 765 766 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 767 768 #ifdef OHCI_DEBUG 769 if (ohcidebug > 5) 770 ohci_dumpregs(sc); 771 #endif 772 773 /* Set up the bus struct. */ 774 sc->sc_bus.methods = &ohci_bus_methods; 775 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 776 777 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 778 779 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 780 781 return (USBD_NORMAL_COMPLETION); 782 783 bad5: 784 for (i = 0; i < OHCI_NO_EDS; i++) 785 ohci_free_sed(sc, sc->sc_eds[i]); 786 bad4: 787 ohci_free_sed(sc, sc->sc_isoc_head); 788 bad3: 789 ohci_free_sed(sc, sc->sc_ctrl_head); 790 bad2: 791 ohci_free_sed(sc, sc->sc_bulk_head); 792 bad1: 793 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 794 return (err); 795 } 796 797 usbd_status 798 ohci_allocm(bus, dma, size) 799 struct usbd_bus *bus; 800 usb_dma_t *dma; 801 u_int32_t size; 802 { 803 #if defined(__NetBSD__) || defined(__OpenBSD__) 804 struct ohci_softc *sc = (struct ohci_softc *)bus; 805 #endif 806 807 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 808 } 809 810 void 811 ohci_freem(bus, dma) 812 struct usbd_bus *bus; 813 usb_dma_t *dma; 814 { 815 #if defined(__NetBSD__) || defined(__OpenBSD__) 816 struct ohci_softc *sc = (struct ohci_softc *)bus; 817 #endif 818 819 usb_freemem(&sc->sc_bus, dma); 820 } 821 822 /* 823 * Shut down the controller when the system is going down. 824 */ 825 void 826 ohci_shutdown(v) 827 void *v; 828 { 829 ohci_softc_t *sc = v; 830 831 DPRINTF(("ohci_shutdown: stopping the HC\n")); 832 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 833 } 834 835 /* 836 * Handle suspend/resume. 837 * 838 * We need to switch to polling mode here, because this routine is 839 * called from an intterupt context. This is all right since we 840 * are almost suspended anyway. 841 */ 842 void 843 ohci_power(why, v) 844 int why; 845 void *v; 846 { 847 #ifdef OHCI_DEBUG 848 ohci_softc_t *sc = v; 849 850 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 851 /* XXX should suspend/resume */ 852 ohci_dumpregs(sc); 853 #endif 854 } 855 856 #ifdef OHCI_DEBUG 857 void 858 ohci_dumpregs(sc) 859 ohci_softc_t *sc; 860 { 861 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 862 OREAD4(sc, OHCI_REVISION), 863 OREAD4(sc, OHCI_CONTROL), 864 OREAD4(sc, OHCI_COMMAND_STATUS))); 865 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 866 OREAD4(sc, OHCI_INTERRUPT_STATUS), 867 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 868 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 869 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 870 OREAD4(sc, OHCI_HCCA), 871 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 872 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 873 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 874 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 875 OREAD4(sc, OHCI_BULK_HEAD_ED), 876 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 877 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 878 OREAD4(sc, OHCI_DONE_HEAD), 879 OREAD4(sc, OHCI_FM_INTERVAL), 880 OREAD4(sc, OHCI_FM_REMAINING))); 881 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 882 OREAD4(sc, OHCI_FM_NUMBER), 883 OREAD4(sc, OHCI_PERIODIC_START), 884 OREAD4(sc, OHCI_LS_THRESHOLD))); 885 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 886 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 887 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 888 OREAD4(sc, OHCI_RH_STATUS))); 889 DPRINTF((" port1=0x%08x port2=0x%08x\n", 890 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 891 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 892 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 893 LE(sc->sc_hcca->hcca_frame_number), 894 LE(sc->sc_hcca->hcca_done_head))); 895 } 896 #endif 897 898 static int ohci_intr1 __P((ohci_softc_t *)); 899 900 int 901 ohci_intr(p) 902 void *p; 903 { 904 ohci_softc_t *sc = p; 905 906 /* If we get an interrupt while polling, then just ignore it. */ 907 if (sc->sc_bus.use_polling) { 908 #ifdef DIAGNOSTIC 909 printf("ohci_intr: ignored interrupt while polling\n"); 910 #endif 911 return (0); 912 } 913 914 return (ohci_intr1(sc)); 915 } 916 917 static int 918 ohci_intr1(sc) 919 ohci_softc_t *sc; 920 { 921 u_int32_t intrs, eintrs; 922 ohci_physaddr_t done; 923 924 /* In case the interrupt occurs before initialization has completed. */ 925 if (sc == NULL || sc->sc_hcca == NULL) { 926 #ifdef DIAGNOSTIC 927 printf("ohci_intr: sc->sc_hcca == NULL\n"); 928 #endif 929 return (0); 930 } 931 932 intrs = 0; 933 done = LE(sc->sc_hcca->hcca_done_head); 934 if (done != 0) { 935 sc->sc_hcca->hcca_done_head = 0; 936 if (done & ~OHCI_DONE_INTRS) 937 intrs = OHCI_WDH; 938 if (done & OHCI_DONE_INTRS) 939 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 940 } else 941 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 942 943 if (!intrs) 944 return (0); 945 946 intrs &= ~OHCI_MIE; 947 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 948 eintrs = intrs & sc->sc_eintrs; 949 if (!eintrs) 950 return (0); 951 952 sc->sc_bus.intr_context++; 953 sc->sc_bus.no_intrs++; 954 DPRINTFN(7, ("ohci_intr: sc=%p intrs=%x(%x) eintr=%x\n", 955 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 956 (u_int)eintrs)); 957 958 if (eintrs & OHCI_SO) { 959 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 960 /* XXX do what */ 961 intrs &= ~OHCI_SO; 962 } 963 if (eintrs & OHCI_WDH) { 964 ohci_process_done(sc, done &~ OHCI_DONE_INTRS); 965 intrs &= ~OHCI_WDH; 966 } 967 if (eintrs & OHCI_RD) { 968 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 969 /* XXX process resume detect */ 970 } 971 if (eintrs & OHCI_UE) { 972 printf("%s: unrecoverable error, controller halted\n", 973 USBDEVNAME(sc->sc_bus.bdev)); 974 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 975 /* XXX what else */ 976 } 977 if (eintrs & OHCI_RHSC) { 978 ohci_rhsc(sc, sc->sc_intrxfer); 979 intrs &= ~OHCI_RHSC; 980 981 /* 982 * Disable RHSC interrupt for now, because it will be 983 * on until the port has been reset. 984 */ 985 ohci_rhsc_able(sc, 0); 986 } 987 988 sc->sc_bus.intr_context--; 989 990 /* Block unprocessed interrupts. XXX */ 991 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 992 sc->sc_eintrs &= ~intrs; 993 994 return (1); 995 } 996 997 void 998 ohci_rhsc_able(sc, on) 999 ohci_softc_t *sc; 1000 int on; 1001 { 1002 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1003 if (on) { 1004 sc->sc_eintrs |= OHCI_RHSC; 1005 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1006 } else { 1007 sc->sc_eintrs &= ~OHCI_RHSC; 1008 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1009 } 1010 } 1011 1012 #ifdef OHCI_DEBUG 1013 char *ohci_cc_strs[] = { 1014 "NO_ERROR", 1015 "CRC", 1016 "BIT_STUFFING", 1017 "DATA_TOGGLE_MISMATCH", 1018 "STALL", 1019 "DEVICE_NOT_RESPONDING", 1020 "PID_CHECK_FAILURE", 1021 "UNEXPECTED_PID", 1022 "DATA_OVERRUN", 1023 "DATA_UNDERRUN", 1024 "BUFFER_OVERRUN", 1025 "BUFFER_UNDERRUN", 1026 "NOT_ACCESSED", 1027 }; 1028 #endif 1029 1030 void 1031 ohci_process_done(sc, done) 1032 ohci_softc_t *sc; 1033 ohci_physaddr_t done; 1034 { 1035 ohci_soft_td_t *std, *sdone, *stdnext; 1036 usbd_xfer_handle xfer; 1037 int len, cc; 1038 1039 DPRINTFN(10,("ohci_process_done: done=0x%08lx\n", (u_long)done)); 1040 1041 /* Reverse the done list. */ 1042 for (sdone = 0; done; done = LE(std->td.td_nexttd)) { 1043 std = ohci_hash_find_td(sc, done); 1044 std->dnext = sdone; 1045 sdone = std; 1046 } 1047 1048 #ifdef OHCI_DEBUG 1049 if (ohcidebug > 10) { 1050 DPRINTF(("ohci_process_done: TD done:\n")); 1051 ohci_dump_tds(sdone); 1052 } 1053 #endif 1054 1055 for (std = sdone; std; std = stdnext) { 1056 xfer = std->xfer; 1057 stdnext = std->dnext; 1058 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1059 std, xfer, xfer->hcpriv)); 1060 cc = OHCI_TD_GET_CC(LE(std->td.td_flags)); 1061 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1062 if (xfer->status == USBD_CANCELLED || 1063 xfer->status == USBD_TIMEOUT) { 1064 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1065 xfer)); 1066 /* Handled by abort routine. */ 1067 } else if (cc == OHCI_CC_NO_ERROR) { 1068 len = std->len; 1069 if (std->td.td_cbp != 0) 1070 len -= LE(std->td.td_be) - 1071 LE(std->td.td_cbp) + 1; 1072 if (std->flags & OHCI_ADD_LEN) 1073 xfer->actlen += len; 1074 if (std->flags & OHCI_CALL_DONE) { 1075 xfer->status = USBD_NORMAL_COMPLETION; 1076 usb_transfer_complete(xfer); 1077 } 1078 ohci_hash_rem_td(sc, std); 1079 ohci_free_std(sc, std); 1080 } else { 1081 /* 1082 * Endpoint is halted. First unlink all the TDs 1083 * belonging to the failed transfer, and then restart 1084 * the endpoint. 1085 */ 1086 ohci_soft_td_t *p, *n; 1087 struct ohci_pipe *opipe = 1088 (struct ohci_pipe *)xfer->pipe; 1089 1090 DPRINTF(("ohci_process_done: error cc=%d (%s)\n", 1091 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1092 ohci_cc_strs[OHCI_TD_GET_CC(LE(std->td.td_flags))])); 1093 1094 /* remove TDs */ 1095 for (p = std; p->xfer == xfer; p = n) { 1096 n = p->nexttd; 1097 ohci_hash_rem_td(sc, p); 1098 ohci_free_std(sc, p); 1099 } 1100 1101 /* clear halt */ 1102 opipe->sed->ed.ed_headp = LE(p->physaddr); 1103 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1104 1105 if (cc == OHCI_CC_STALL) 1106 xfer->status = USBD_STALLED; 1107 else 1108 xfer->status = USBD_IOERROR; 1109 usb_transfer_complete(xfer); 1110 } 1111 } 1112 } 1113 1114 void 1115 ohci_device_ctrl_done(xfer) 1116 usbd_xfer_handle xfer; 1117 { 1118 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1119 1120 #ifdef DIAGNOSTIC 1121 if (!(xfer->rqflags & URQ_REQUEST)) { 1122 panic("ohci_ctrl_done: not a request\n"); 1123 } 1124 #endif 1125 xfer->hcpriv = NULL; 1126 } 1127 1128 void 1129 ohci_device_intr_done(xfer) 1130 usbd_xfer_handle xfer; 1131 { 1132 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1133 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1134 ohci_soft_ed_t *sed = opipe->sed; 1135 ohci_soft_td_t *data, *tail; 1136 1137 1138 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1139 xfer, xfer->actlen)); 1140 1141 xfer->hcpriv = NULL; 1142 1143 if (xfer->pipe->repeat) { 1144 data = opipe->tail.td; 1145 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1146 if (tail == NULL) { 1147 xfer->status = USBD_NOMEM; 1148 return; 1149 } 1150 tail->xfer = NULL; 1151 1152 data->td.td_flags = LE( 1153 OHCI_TD_IN | OHCI_TD_NOCC | 1154 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1155 if (xfer->flags & USBD_SHORT_XFER_OK) 1156 data->td.td_flags |= LE(OHCI_TD_R); 1157 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1158 data->nexttd = tail; 1159 data->td.td_nexttd = LE(tail->physaddr); 1160 data->td.td_be = LE(LE(data->td.td_cbp) + xfer->length - 1); 1161 data->len = xfer->length; 1162 data->xfer = xfer; 1163 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1164 xfer->hcpriv = data; 1165 xfer->actlen = 0; 1166 1167 ohci_hash_add_td(sc, data); 1168 sed->ed.ed_tailp = LE(tail->physaddr); 1169 opipe->tail.td = tail; 1170 } 1171 } 1172 1173 void 1174 ohci_device_bulk_done(xfer) 1175 usbd_xfer_handle xfer; 1176 { 1177 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1178 xfer, xfer->actlen)); 1179 1180 xfer->hcpriv = NULL; 1181 } 1182 1183 void 1184 ohci_rhsc(sc, xfer) 1185 ohci_softc_t *sc; 1186 usbd_xfer_handle xfer; 1187 { 1188 usbd_pipe_handle pipe; 1189 struct ohci_pipe *opipe; 1190 u_char *p; 1191 int i, m; 1192 int hstatus; 1193 1194 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1195 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1196 sc, xfer, hstatus)); 1197 1198 if (xfer == NULL) { 1199 /* Just ignore the change. */ 1200 return; 1201 } 1202 1203 pipe = xfer->pipe; 1204 opipe = (struct ohci_pipe *)pipe; 1205 1206 p = KERNADDR(&xfer->dmabuf); 1207 m = min(sc->sc_noport, xfer->length * 8 - 1); 1208 memset(p, 0, xfer->length); 1209 for (i = 1; i <= m; i++) { 1210 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1211 p[i/8] |= 1 << (i%8); 1212 } 1213 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1214 xfer->actlen = xfer->length; 1215 xfer->status = USBD_NORMAL_COMPLETION; 1216 1217 usb_transfer_complete(xfer); 1218 } 1219 1220 void 1221 ohci_root_intr_done(xfer) 1222 usbd_xfer_handle xfer; 1223 { 1224 xfer->hcpriv = NULL; 1225 } 1226 1227 /* 1228 * Wait here until controller claims to have an interrupt. 1229 * Then call ohci_intr and return. Use timeout to avoid waiting 1230 * too long. 1231 */ 1232 void 1233 ohci_waitintr(sc, xfer) 1234 ohci_softc_t *sc; 1235 usbd_xfer_handle xfer; 1236 { 1237 int timo = xfer->timeout; 1238 int usecs; 1239 u_int32_t intrs; 1240 1241 xfer->status = USBD_IN_PROGRESS; 1242 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1243 usb_delay_ms(&sc->sc_bus, 1); 1244 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1245 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1246 #ifdef OHCI_DEBUG 1247 if (ohcidebug > 15) 1248 ohci_dumpregs(sc); 1249 #endif 1250 if (intrs) { 1251 ohci_intr1(sc); 1252 if (xfer->status != USBD_IN_PROGRESS) 1253 return; 1254 } 1255 } 1256 1257 /* Timeout */ 1258 DPRINTF(("ohci_waitintr: timeout\n")); 1259 xfer->status = USBD_TIMEOUT; 1260 usb_transfer_complete(xfer); 1261 /* XXX should free TD */ 1262 } 1263 1264 void 1265 ohci_poll(bus) 1266 struct usbd_bus *bus; 1267 { 1268 ohci_softc_t *sc = (ohci_softc_t *)bus; 1269 1270 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1271 ohci_intr1(sc); 1272 } 1273 1274 usbd_status 1275 ohci_device_request(xfer) 1276 usbd_xfer_handle xfer; 1277 { 1278 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1279 usb_device_request_t *req = &xfer->request; 1280 usbd_device_handle dev = opipe->pipe.device; 1281 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1282 int addr = dev->address; 1283 ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail; 1284 ohci_soft_ed_t *sed; 1285 int isread; 1286 int len; 1287 usbd_status err; 1288 int s; 1289 1290 isread = req->bmRequestType & UT_READ; 1291 len = UGETW(req->wLength); 1292 1293 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1294 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1295 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1296 UGETW(req->wIndex), len, addr, 1297 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1298 1299 setup = opipe->tail.td; 1300 stat = ohci_alloc_std(sc); 1301 if (stat == NULL) { 1302 err = USBD_NOMEM; 1303 goto bad1; 1304 } 1305 tail = ohci_alloc_std(sc); 1306 if (tail == NULL) { 1307 err = USBD_NOMEM; 1308 goto bad2; 1309 } 1310 tail->xfer = NULL; 1311 1312 sed = opipe->sed; 1313 opipe->u.ctl.length = len; 1314 1315 /* Update device address and length since they may have changed. */ 1316 /* XXX This only needs to be done once, but it's too early in open. */ 1317 sed->ed.ed_flags = LE( 1318 (LE(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1319 OHCI_ED_SET_FA(addr) | 1320 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1321 1322 /* Set up data transaction */ 1323 if (len != 0) { 1324 data = ohci_alloc_std(sc); 1325 if (data == NULL) { 1326 err = USBD_NOMEM; 1327 goto bad3; 1328 } 1329 data->td.td_flags = LE( 1330 (isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC | 1331 OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR | 1332 (xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0)); 1333 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1334 data->nexttd = stat; 1335 data->td.td_nexttd = LE(stat->physaddr); 1336 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 1337 data->len = len; 1338 data->xfer = xfer; 1339 data->flags = OHCI_ADD_LEN; 1340 1341 next = data; 1342 stat->flags = OHCI_CALL_DONE; 1343 } else { 1344 next = stat; 1345 /* XXX ADD_LEN? */ 1346 stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1347 } 1348 1349 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1350 1351 setup->td.td_flags = LE(OHCI_TD_SETUP | OHCI_TD_NOCC | 1352 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1353 setup->td.td_cbp = LE(DMAADDR(&opipe->u.ctl.reqdma)); 1354 setup->nexttd = next; 1355 setup->td.td_nexttd = LE(next->physaddr); 1356 setup->td.td_be = LE(LE(setup->td.td_cbp) + sizeof *req - 1); 1357 setup->len = 0; /* XXX The number of byte we count */ 1358 setup->xfer = xfer; 1359 setup->flags = 0; 1360 xfer->hcpriv = setup; 1361 1362 stat->td.td_flags = LE( 1363 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC | 1364 OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1365 stat->td.td_cbp = 0; 1366 stat->nexttd = tail; 1367 stat->td.td_nexttd = LE(tail->physaddr); 1368 stat->td.td_be = 0; 1369 stat->len = 0; 1370 stat->xfer = xfer; 1371 1372 #ifdef OHCI_DEBUG 1373 if (ohcidebug > 5) { 1374 DPRINTF(("ohci_device_request:\n")); 1375 ohci_dump_ed(sed); 1376 ohci_dump_tds(setup); 1377 } 1378 #endif 1379 1380 /* Insert ED in schedule */ 1381 s = splusb(); 1382 ohci_hash_add_td(sc, setup); 1383 if (len != 0) 1384 ohci_hash_add_td(sc, data); 1385 ohci_hash_add_td(sc, stat); 1386 sed->ed.ed_tailp = LE(tail->physaddr); 1387 opipe->tail.td = tail; 1388 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1389 if (xfer->timeout && !sc->sc_bus.use_polling) { 1390 usb_timeout(ohci_timeout, xfer, 1391 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 1392 } 1393 splx(s); 1394 1395 #ifdef OHCI_DEBUG 1396 if (ohcidebug > 5) { 1397 usb_delay_ms(&sc->sc_bus, 5); 1398 DPRINTF(("ohci_device_request: status=%x\n", 1399 OREAD4(sc, OHCI_COMMAND_STATUS))); 1400 ohci_dump_ed(sed); 1401 ohci_dump_tds(setup); 1402 } 1403 #endif 1404 1405 return (USBD_NORMAL_COMPLETION); 1406 1407 bad3: 1408 ohci_free_std(sc, tail); 1409 bad2: 1410 ohci_free_std(sc, stat); 1411 bad1: 1412 return (err); 1413 } 1414 1415 /* 1416 * Add an ED to the schedule. Called at splusb(). 1417 */ 1418 void 1419 ohci_add_ed(sed, head) 1420 ohci_soft_ed_t *sed; 1421 ohci_soft_ed_t *head; 1422 { 1423 SPLUSBCHECK; 1424 sed->next = head->next; 1425 sed->ed.ed_nexted = head->ed.ed_nexted; 1426 head->next = sed; 1427 head->ed.ed_nexted = LE(sed->physaddr); 1428 } 1429 1430 /* 1431 * Remove an ED from the schedule. Called at splusb(). 1432 */ 1433 void 1434 ohci_rem_ed(sed, head) 1435 ohci_soft_ed_t *sed; 1436 ohci_soft_ed_t *head; 1437 { 1438 ohci_soft_ed_t *p; 1439 1440 SPLUSBCHECK; 1441 1442 /* XXX */ 1443 for (p = head; p == NULL && p->next != sed; p = p->next) 1444 ; 1445 if (p == NULL) 1446 panic("ohci_rem_ed: ED not found\n"); 1447 p->next = sed->next; 1448 p->ed.ed_nexted = sed->ed.ed_nexted; 1449 } 1450 1451 /* 1452 * When a transfer is completed the TD is added to the done queue by 1453 * the host controller. This queue is the processed by software. 1454 * Unfortunately the queue contains the physical address of the TD 1455 * and we have no simple way to translate this back to a kernel address. 1456 * To make the translation possible (and fast) we use a hash table of 1457 * TDs currently in the schedule. The physical address is used as the 1458 * hash value. 1459 */ 1460 1461 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1462 /* Called at splusb() */ 1463 void 1464 ohci_hash_add_td(sc, std) 1465 ohci_softc_t *sc; 1466 ohci_soft_td_t *std; 1467 { 1468 int h = HASH(std->physaddr); 1469 1470 SPLUSBCHECK; 1471 1472 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1473 } 1474 1475 /* Called at splusb() */ 1476 void 1477 ohci_hash_rem_td(sc, std) 1478 ohci_softc_t *sc; 1479 ohci_soft_td_t *std; 1480 { 1481 SPLUSBCHECK; 1482 1483 LIST_REMOVE(std, hnext); 1484 } 1485 1486 ohci_soft_td_t * 1487 ohci_hash_find_td(sc, a) 1488 ohci_softc_t *sc; 1489 ohci_physaddr_t a; 1490 { 1491 int h = HASH(a); 1492 ohci_soft_td_t *std; 1493 1494 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1495 std != NULL; 1496 std = LIST_NEXT(std, hnext)) 1497 if (std->physaddr == a) 1498 return (std); 1499 panic("ohci_hash_find_td: addr 0x%08lx not found\n", (u_long)a); 1500 } 1501 1502 void 1503 ohci_timeout(addr) 1504 void *addr; 1505 { 1506 usbd_xfer_handle xfer = addr; 1507 int s; 1508 1509 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1510 1511 s = splusb(); 1512 xfer->device->bus->intr_context++; 1513 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1514 xfer->device->bus->intr_context--; 1515 splx(s); 1516 } 1517 1518 #ifdef OHCI_DEBUG 1519 void 1520 ohci_dump_tds(std) 1521 ohci_soft_td_t *std; 1522 { 1523 for (; std; std = std->nexttd) 1524 ohci_dump_td(std); 1525 } 1526 1527 void 1528 ohci_dump_td(std) 1529 ohci_soft_td_t *std; 1530 { 1531 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1532 "nexttd=0x%08lx be=0x%08lx\n", 1533 std, (u_long)std->physaddr, 1534 (int)LE(std->td.td_flags), 1535 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1536 OHCI_TD_GET_DI(LE(std->td.td_flags)), 1537 OHCI_TD_GET_EC(LE(std->td.td_flags)), 1538 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1539 (u_long)LE(std->td.td_cbp), 1540 (u_long)LE(std->td.td_nexttd), (u_long)LE(std->td.td_be))); 1541 } 1542 1543 void 1544 ohci_dump_ed(sed) 1545 ohci_soft_ed_t *sed; 1546 { 1547 DPRINTF(("ED(%p) at %08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1548 "headp=%b nexted=0x%08lx\n", 1549 sed, (u_long)sed->physaddr, 1550 OHCI_ED_GET_FA(LE(sed->ed.ed_flags)), 1551 OHCI_ED_GET_EN(LE(sed->ed.ed_flags)), 1552 OHCI_ED_GET_MAXP(LE(sed->ed.ed_flags)), 1553 (int)LE(sed->ed.ed_flags), 1554 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1555 (u_long)LE(sed->ed.ed_tailp), 1556 (u_long)LE(sed->ed.ed_headp), 1557 "\20\1HALT\2CARRY", 1558 (u_long)LE(sed->ed.ed_nexted))); 1559 } 1560 #endif 1561 1562 usbd_status 1563 ohci_open(pipe) 1564 usbd_pipe_handle pipe; 1565 { 1566 usbd_device_handle dev = pipe->device; 1567 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1568 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1569 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1570 u_int8_t addr = dev->address; 1571 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1572 ohci_soft_ed_t *sed; 1573 ohci_soft_td_t *std; 1574 ohci_soft_itd_t *sitd; 1575 ohci_physaddr_t tdphys; 1576 u_int32_t fmt; 1577 usbd_status err; 1578 int s; 1579 1580 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1581 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1582 if (addr == sc->sc_addr) { 1583 switch (ed->bEndpointAddress) { 1584 case USB_CONTROL_ENDPOINT: 1585 pipe->methods = &ohci_root_ctrl_methods; 1586 break; 1587 case UE_DIR_IN | OHCI_INTR_ENDPT: 1588 pipe->methods = &ohci_root_intr_methods; 1589 break; 1590 default: 1591 return (USBD_INVAL); 1592 } 1593 } else { 1594 sed = ohci_alloc_sed(sc); 1595 if (sed == NULL) 1596 goto bad0; 1597 opipe->sed = sed; 1598 if (xfertype == UE_ISOCHRONOUS) { 1599 sitd = ohci_alloc_sitd(sc); 1600 if (sitd == NULL) { 1601 ohci_free_sitd(sc, sitd); 1602 goto bad1; 1603 } 1604 opipe->tail.itd = sitd; 1605 tdphys = LE(sitd->physaddr); 1606 fmt = OHCI_ED_FORMAT_ISO; 1607 } else { 1608 std = ohci_alloc_std(sc); 1609 if (std == NULL) { 1610 ohci_free_std(sc, std); 1611 goto bad1; 1612 } 1613 opipe->tail.td = std; 1614 tdphys = LE(std->physaddr); 1615 fmt = OHCI_ED_FORMAT_GEN; 1616 } 1617 sed->ed.ed_flags = LE( 1618 OHCI_ED_SET_FA(addr) | 1619 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1620 OHCI_ED_DIR_TD | 1621 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1622 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1623 sed->ed.ed_headp = sed->ed.ed_tailp = tdphys; 1624 1625 switch (xfertype) { 1626 case UE_CONTROL: 1627 pipe->methods = &ohci_device_ctrl_methods; 1628 err = usb_allocmem(&sc->sc_bus, 1629 sizeof(usb_device_request_t), 1630 0, &opipe->u.ctl.reqdma); 1631 if (err) 1632 goto bad; 1633 s = splusb(); 1634 ohci_add_ed(sed, sc->sc_ctrl_head); 1635 splx(s); 1636 break; 1637 case UE_INTERRUPT: 1638 pipe->methods = &ohci_device_intr_methods; 1639 return (ohci_device_setintr(sc, opipe, ed->bInterval)); 1640 case UE_ISOCHRONOUS: 1641 pipe->methods = &ohci_device_isoc_methods; 1642 return (ohci_setup_isoc(pipe)); 1643 case UE_BULK: 1644 pipe->methods = &ohci_device_bulk_methods; 1645 s = splusb(); 1646 ohci_add_ed(sed, sc->sc_bulk_head); 1647 splx(s); 1648 break; 1649 } 1650 } 1651 return (USBD_NORMAL_COMPLETION); 1652 1653 bad: 1654 ohci_free_std(sc, std); 1655 bad1: 1656 ohci_free_sed(sc, sed); 1657 bad0: 1658 return (USBD_NOMEM); 1659 1660 } 1661 1662 /* 1663 * Close a reqular pipe. 1664 * Assumes that there are no pending transactions. 1665 */ 1666 void 1667 ohci_close_pipe(pipe, head) 1668 usbd_pipe_handle pipe; 1669 ohci_soft_ed_t *head; 1670 { 1671 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1672 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1673 ohci_soft_ed_t *sed = opipe->sed; 1674 int s; 1675 1676 s = splusb(); 1677 #ifdef DIAGNOSTIC 1678 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 1679 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1680 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) { 1681 ohci_physaddr_t td = sed->ed.ed_headp; 1682 ohci_soft_td_t *std; 1683 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1684 std != NULL; 1685 std = LIST_NEXT(std, hnext)) 1686 if (std->physaddr == td) 1687 break; 1688 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1689 "tl=0x%x pipe=%p, std=%p\n", sed, 1690 (int)LE(sed->ed.ed_headp), (int)LE(sed->ed.ed_tailp), 1691 pipe, std); 1692 usb_delay_ms(&sc->sc_bus, 2); 1693 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1694 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 1695 printf("ohci_close_pipe: pipe still not empty\n"); 1696 } 1697 #endif 1698 ohci_rem_ed(sed, head); 1699 splx(s); 1700 ohci_free_sed(sc, opipe->sed); 1701 } 1702 1703 /* 1704 * Abort a device request. 1705 * If this routine is called at splusb() it guarantees that the request 1706 * will be removed from the hardware scheduling and that the callback 1707 * for it will be called with USBD_CANCELLED status. 1708 * It's impossible to guarantee that the requested transfer will not 1709 * have happened since the hardware runs concurrently. 1710 * If the transaction has already happened we rely on the ordinary 1711 * interrupt processing to process it. 1712 */ 1713 void 1714 ohci_abort_xfer(xfer, status) 1715 usbd_xfer_handle xfer; 1716 usbd_status status; 1717 { 1718 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1719 ohci_soft_ed_t *sed; 1720 1721 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1722 1723 xfer->status = status; 1724 1725 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1726 1727 sed = opipe->sed; 1728 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1729 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); /* force hardware skip */ 1730 1731 #if 1 1732 if (xfer->device->bus->intr_context) { 1733 /* We have no process context, so we can't use tsleep(). */ 1734 timeout(ohci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1735 } else { 1736 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1737 KASSERT(intr_nesting_level == 0, 1738 ("ohci_abort_req in interrupt context")); 1739 #endif 1740 usb_delay_ms(opipe->pipe.device->bus, 1); 1741 ohci_abort_xfer_end(xfer); 1742 } 1743 #else 1744 delay(1000); 1745 ohci_abort_xfer_end(xfer); 1746 #endif 1747 } 1748 1749 void 1750 ohci_abort_xfer_end(v) 1751 void *v; 1752 { 1753 usbd_xfer_handle xfer = v; 1754 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1755 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1756 ohci_soft_ed_t *sed; 1757 ohci_soft_td_t *p, *n; 1758 int s; 1759 1760 s = splusb(); 1761 1762 p = xfer->hcpriv; 1763 #ifdef DIAGNOSTIC 1764 if (p == NULL) { 1765 printf("ohci_abort_xfer: hcpriv==0\n"); 1766 return; 1767 } 1768 #endif 1769 for (; p->xfer == xfer; p = n) { 1770 n = p->nexttd; 1771 ohci_hash_rem_td(sc, p); 1772 ohci_free_std(sc, p); 1773 } 1774 1775 sed = opipe->sed; 1776 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 1777 (int)LE(p->physaddr), (int)LE(sed->ed.ed_tailp))); 1778 sed->ed.ed_headp = p->physaddr; /* unlink TDs */ 1779 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); /* remove hardware skip */ 1780 1781 usb_transfer_complete(xfer); 1782 1783 splx(s); 1784 } 1785 1786 /* 1787 * Data structures and routines to emulate the root hub. 1788 */ 1789 static usb_device_descriptor_t ohci_devd = { 1790 USB_DEVICE_DESCRIPTOR_SIZE, 1791 UDESC_DEVICE, /* type */ 1792 {0x00, 0x01}, /* USB version */ 1793 UCLASS_HUB, /* class */ 1794 USUBCLASS_HUB, /* subclass */ 1795 0, /* protocol */ 1796 64, /* max packet */ 1797 {0},{0},{0x00,0x01}, /* device id */ 1798 1,2,0, /* string indicies */ 1799 1 /* # of configurations */ 1800 }; 1801 1802 static usb_config_descriptor_t ohci_confd = { 1803 USB_CONFIG_DESCRIPTOR_SIZE, 1804 UDESC_CONFIG, 1805 {USB_CONFIG_DESCRIPTOR_SIZE + 1806 USB_INTERFACE_DESCRIPTOR_SIZE + 1807 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1808 1, 1809 1, 1810 0, 1811 UC_SELF_POWERED, 1812 0 /* max power */ 1813 }; 1814 1815 static usb_interface_descriptor_t ohci_ifcd = { 1816 USB_INTERFACE_DESCRIPTOR_SIZE, 1817 UDESC_INTERFACE, 1818 0, 1819 0, 1820 1, 1821 UCLASS_HUB, 1822 USUBCLASS_HUB, 1823 0, 1824 0 1825 }; 1826 1827 static usb_endpoint_descriptor_t ohci_endpd = { 1828 USB_ENDPOINT_DESCRIPTOR_SIZE, 1829 UDESC_ENDPOINT, 1830 UE_DIR_IN | OHCI_INTR_ENDPT, 1831 UE_INTERRUPT, 1832 {8, 0}, /* max packet */ 1833 255 1834 }; 1835 1836 static usb_hub_descriptor_t ohci_hubd = { 1837 USB_HUB_DESCRIPTOR_SIZE, 1838 UDESC_HUB, 1839 0, 1840 {0,0}, 1841 0, 1842 0, 1843 {0}, 1844 }; 1845 1846 static int 1847 ohci_str(p, l, s) 1848 usb_string_descriptor_t *p; 1849 int l; 1850 char *s; 1851 { 1852 int i; 1853 1854 if (l == 0) 1855 return (0); 1856 p->bLength = 2 * strlen(s) + 2; 1857 if (l == 1) 1858 return (1); 1859 p->bDescriptorType = UDESC_STRING; 1860 l -= 2; 1861 for (i = 0; s[i] && l > 1; i++, l -= 2) 1862 USETW2(p->bString[i], 0, s[i]); 1863 return (2*i+2); 1864 } 1865 1866 /* 1867 * Simulate a hardware hub by handling all the necessary requests. 1868 */ 1869 static usbd_status 1870 ohci_root_ctrl_transfer(xfer) 1871 usbd_xfer_handle xfer; 1872 { 1873 usbd_status err; 1874 1875 /* Insert last in queue. */ 1876 err = usb_insert_transfer(xfer); 1877 if (err) 1878 return (err); 1879 1880 /* Pipe isn't running, start first */ 1881 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1882 } 1883 1884 static usbd_status 1885 ohci_root_ctrl_start(xfer) 1886 usbd_xfer_handle xfer; 1887 { 1888 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 1889 usb_device_request_t *req; 1890 void *buf = NULL; 1891 int port, i; 1892 int s, len, value, index, l, totlen = 0; 1893 usb_port_status_t ps; 1894 usb_hub_descriptor_t hubd; 1895 usbd_status err; 1896 u_int32_t v; 1897 1898 #ifdef DIAGNOSTIC 1899 if (!(xfer->rqflags & URQ_REQUEST)) 1900 /* XXX panic */ 1901 return (USBD_INVAL); 1902 #endif 1903 req = &xfer->request; 1904 1905 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 1906 req->bmRequestType, req->bRequest)); 1907 1908 len = UGETW(req->wLength); 1909 value = UGETW(req->wValue); 1910 index = UGETW(req->wIndex); 1911 1912 if (len != 0) 1913 buf = KERNADDR(&xfer->dmabuf); 1914 1915 #define C(x,y) ((x) | ((y) << 8)) 1916 switch(C(req->bRequest, req->bmRequestType)) { 1917 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1918 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1919 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1920 /* 1921 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1922 * for the integrated root hub. 1923 */ 1924 break; 1925 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1926 if (len > 0) { 1927 *(u_int8_t *)buf = sc->sc_conf; 1928 totlen = 1; 1929 } 1930 break; 1931 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1932 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 1933 switch(value >> 8) { 1934 case UDESC_DEVICE: 1935 if ((value & 0xff) != 0) { 1936 err = USBD_IOERROR; 1937 goto ret; 1938 } 1939 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1940 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 1941 memcpy(buf, &ohci_devd, l); 1942 break; 1943 case UDESC_CONFIG: 1944 if ((value & 0xff) != 0) { 1945 err = USBD_IOERROR; 1946 goto ret; 1947 } 1948 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 1949 memcpy(buf, &ohci_confd, l); 1950 buf = (char *)buf + l; 1951 len -= l; 1952 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 1953 totlen += l; 1954 memcpy(buf, &ohci_ifcd, l); 1955 buf = (char *)buf + l; 1956 len -= l; 1957 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 1958 totlen += l; 1959 memcpy(buf, &ohci_endpd, l); 1960 break; 1961 case UDESC_STRING: 1962 if (len == 0) 1963 break; 1964 *(u_int8_t *)buf = 0; 1965 totlen = 1; 1966 switch (value & 0xff) { 1967 case 1: /* Vendor */ 1968 totlen = ohci_str(buf, len, sc->sc_vendor); 1969 break; 1970 case 2: /* Product */ 1971 totlen = ohci_str(buf, len, "OHCI root hub"); 1972 break; 1973 } 1974 break; 1975 default: 1976 err = USBD_IOERROR; 1977 goto ret; 1978 } 1979 break; 1980 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 1981 if (len > 0) { 1982 *(u_int8_t *)buf = 0; 1983 totlen = 1; 1984 } 1985 break; 1986 case C(UR_GET_STATUS, UT_READ_DEVICE): 1987 if (len > 1) { 1988 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 1989 totlen = 2; 1990 } 1991 break; 1992 case C(UR_GET_STATUS, UT_READ_INTERFACE): 1993 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 1994 if (len > 1) { 1995 USETW(((usb_status_t *)buf)->wStatus, 0); 1996 totlen = 2; 1997 } 1998 break; 1999 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2000 if (value >= USB_MAX_DEVICES) { 2001 err = USBD_IOERROR; 2002 goto ret; 2003 } 2004 sc->sc_addr = value; 2005 break; 2006 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2007 if (value != 0 && value != 1) { 2008 err = USBD_IOERROR; 2009 goto ret; 2010 } 2011 sc->sc_conf = value; 2012 break; 2013 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2014 break; 2015 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2016 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2017 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2018 err = USBD_IOERROR; 2019 goto ret; 2020 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2021 break; 2022 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2023 break; 2024 /* Hub requests */ 2025 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2026 break; 2027 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2028 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2029 "port=%d feature=%d\n", 2030 index, value)); 2031 if (index < 1 || index > sc->sc_noport) { 2032 err = USBD_IOERROR; 2033 goto ret; 2034 } 2035 port = OHCI_RH_PORT_STATUS(index); 2036 switch(value) { 2037 case UHF_PORT_ENABLE: 2038 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2039 break; 2040 case UHF_PORT_SUSPEND: 2041 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2042 break; 2043 case UHF_PORT_POWER: 2044 OWRITE4(sc, port, UPS_LOW_SPEED); 2045 break; 2046 case UHF_C_PORT_CONNECTION: 2047 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2048 break; 2049 case UHF_C_PORT_ENABLE: 2050 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2051 break; 2052 case UHF_C_PORT_SUSPEND: 2053 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2054 break; 2055 case UHF_C_PORT_OVER_CURRENT: 2056 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2057 break; 2058 case UHF_C_PORT_RESET: 2059 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2060 break; 2061 default: 2062 err = USBD_IOERROR; 2063 goto ret; 2064 } 2065 switch(value) { 2066 case UHF_C_PORT_CONNECTION: 2067 case UHF_C_PORT_ENABLE: 2068 case UHF_C_PORT_SUSPEND: 2069 case UHF_C_PORT_OVER_CURRENT: 2070 case UHF_C_PORT_RESET: 2071 /* Enable RHSC interrupt if condition is cleared. */ 2072 if ((OREAD4(sc, port) >> 16) == 0) 2073 ohci_rhsc_able(sc, 1); 2074 break; 2075 default: 2076 break; 2077 } 2078 break; 2079 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2080 if (value != 0) { 2081 err = USBD_IOERROR; 2082 goto ret; 2083 } 2084 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2085 hubd = ohci_hubd; 2086 hubd.bNbrPorts = sc->sc_noport; 2087 USETW(hubd.wHubCharacteristics, 2088 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2089 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2090 /* XXX overcurrent */ 2091 ); 2092 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2093 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2094 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2095 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2096 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2097 l = min(len, hubd.bDescLength); 2098 totlen = l; 2099 memcpy(buf, &hubd, l); 2100 break; 2101 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2102 if (len != 4) { 2103 err = USBD_IOERROR; 2104 goto ret; 2105 } 2106 memset(buf, 0, len); /* ? XXX */ 2107 totlen = len; 2108 break; 2109 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2110 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2111 index)); 2112 if (index < 1 || index > sc->sc_noport) { 2113 err = USBD_IOERROR; 2114 goto ret; 2115 } 2116 if (len != 4) { 2117 err = USBD_IOERROR; 2118 goto ret; 2119 } 2120 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2121 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2122 v)); 2123 USETW(ps.wPortStatus, v); 2124 USETW(ps.wPortChange, v >> 16); 2125 l = min(len, sizeof ps); 2126 memcpy(buf, &ps, l); 2127 totlen = l; 2128 break; 2129 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2130 err = USBD_IOERROR; 2131 goto ret; 2132 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2133 break; 2134 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2135 if (index < 1 || index > sc->sc_noport) { 2136 err = USBD_IOERROR; 2137 goto ret; 2138 } 2139 port = OHCI_RH_PORT_STATUS(index); 2140 switch(value) { 2141 case UHF_PORT_ENABLE: 2142 OWRITE4(sc, port, UPS_PORT_ENABLED); 2143 break; 2144 case UHF_PORT_SUSPEND: 2145 OWRITE4(sc, port, UPS_SUSPEND); 2146 break; 2147 case UHF_PORT_RESET: 2148 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2149 index)); 2150 OWRITE4(sc, port, UPS_RESET); 2151 for (i = 0; i < 10; i++) { 2152 usb_delay_ms(&sc->sc_bus, 10); 2153 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2154 break; 2155 } 2156 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2157 index, OREAD4(sc, port))); 2158 break; 2159 case UHF_PORT_POWER: 2160 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2161 "%d\n", index)); 2162 OWRITE4(sc, port, UPS_PORT_POWER); 2163 break; 2164 default: 2165 err = USBD_IOERROR; 2166 goto ret; 2167 } 2168 break; 2169 default: 2170 err = USBD_IOERROR; 2171 goto ret; 2172 } 2173 xfer->actlen = totlen; 2174 err = USBD_NORMAL_COMPLETION; 2175 ret: 2176 xfer->status = err; 2177 s = splusb(); 2178 usb_transfer_complete(xfer); 2179 splx(s); 2180 return (USBD_IN_PROGRESS); 2181 } 2182 2183 /* Abort a root control request. */ 2184 static void 2185 ohci_root_ctrl_abort(xfer) 2186 usbd_xfer_handle xfer; 2187 { 2188 /* Nothing to do, all transfers are synchronous. */ 2189 } 2190 2191 /* Close the root pipe. */ 2192 static void 2193 ohci_root_ctrl_close(pipe) 2194 usbd_pipe_handle pipe; 2195 { 2196 DPRINTF(("ohci_root_ctrl_close\n")); 2197 /* Nothing to do. */ 2198 } 2199 2200 static usbd_status 2201 ohci_root_intr_transfer(xfer) 2202 usbd_xfer_handle xfer; 2203 { 2204 usbd_status err; 2205 2206 /* Insert last in queue. */ 2207 err = usb_insert_transfer(xfer); 2208 if (err) 2209 return (err); 2210 2211 /* Pipe isn't running, start first */ 2212 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2213 } 2214 2215 static usbd_status 2216 ohci_root_intr_start(xfer) 2217 usbd_xfer_handle xfer; 2218 { 2219 usbd_pipe_handle pipe = xfer->pipe; 2220 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2221 2222 sc->sc_intrxfer = xfer; 2223 2224 return (USBD_IN_PROGRESS); 2225 } 2226 2227 /* Abort a root interrupt request. */ 2228 static void 2229 ohci_root_intr_abort(xfer) 2230 usbd_xfer_handle xfer; 2231 { 2232 int s; 2233 2234 if (xfer->pipe->intrxfer == xfer) { 2235 DPRINTF(("ohci_root_intr_abort: remove\n")); 2236 xfer->pipe->intrxfer = NULL; 2237 } 2238 xfer->status = USBD_CANCELLED; 2239 s = splusb(); 2240 usb_transfer_complete(xfer); 2241 splx(s); 2242 } 2243 2244 /* Close the root pipe. */ 2245 static void 2246 ohci_root_intr_close(pipe) 2247 usbd_pipe_handle pipe; 2248 { 2249 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2250 2251 DPRINTF(("ohci_root_intr_close\n")); 2252 2253 sc->sc_intrxfer = NULL; 2254 } 2255 2256 /************************/ 2257 2258 static usbd_status 2259 ohci_device_ctrl_transfer(xfer) 2260 usbd_xfer_handle xfer; 2261 { 2262 usbd_status err; 2263 2264 /* Insert last in queue. */ 2265 err = usb_insert_transfer(xfer); 2266 if (err) 2267 return (err); 2268 2269 /* Pipe isn't running, start first */ 2270 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2271 } 2272 2273 static usbd_status 2274 ohci_device_ctrl_start(xfer) 2275 usbd_xfer_handle xfer; 2276 { 2277 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2278 usbd_status err; 2279 2280 #ifdef DIAGNOSTIC 2281 if (!(xfer->rqflags & URQ_REQUEST)) { 2282 /* XXX panic */ 2283 printf("ohci_device_ctrl_transfer: not a request\n"); 2284 return (USBD_INVAL); 2285 } 2286 #endif 2287 2288 err = ohci_device_request(xfer); 2289 if (err) 2290 return (err); 2291 2292 if (sc->sc_bus.use_polling) 2293 ohci_waitintr(sc, xfer); 2294 return (USBD_IN_PROGRESS); 2295 } 2296 2297 /* Abort a device control request. */ 2298 static void 2299 ohci_device_ctrl_abort(xfer) 2300 usbd_xfer_handle xfer; 2301 { 2302 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2303 ohci_abort_xfer(xfer, USBD_CANCELLED); 2304 } 2305 2306 /* Close a device control pipe. */ 2307 static void 2308 ohci_device_ctrl_close(pipe) 2309 usbd_pipe_handle pipe; 2310 { 2311 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2312 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2313 2314 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2315 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2316 ohci_free_std(sc, opipe->tail.td); 2317 } 2318 2319 /************************/ 2320 2321 static void 2322 ohci_device_clear_toggle(pipe) 2323 usbd_pipe_handle pipe; 2324 { 2325 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2326 2327 opipe->sed->ed.ed_tailp &= LE(~OHCI_TOGGLECARRY); 2328 } 2329 2330 static void 2331 ohci_noop(pipe) 2332 usbd_pipe_handle pipe; 2333 { 2334 } 2335 2336 static usbd_status 2337 ohci_device_bulk_transfer(xfer) 2338 usbd_xfer_handle xfer; 2339 { 2340 usbd_status err; 2341 2342 /* Insert last in queue. */ 2343 err = usb_insert_transfer(xfer); 2344 if (err) 2345 return (err); 2346 2347 /* Pipe isn't running, start first */ 2348 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2349 } 2350 2351 static usbd_status 2352 ohci_device_bulk_start(xfer) 2353 usbd_xfer_handle xfer; 2354 { 2355 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2356 usbd_device_handle dev = opipe->pipe.device; 2357 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2358 int addr = dev->address; 2359 ohci_soft_td_t *data, *tail, *tdp; 2360 ohci_soft_ed_t *sed; 2361 int s, len, isread, endpt; 2362 usbd_status err; 2363 2364 #ifdef DIAGNOSTIC 2365 if (xfer->rqflags & URQ_REQUEST) { 2366 /* XXX panic */ 2367 printf("ohci_device_bulk_start: a request\n"); 2368 return (USBD_INVAL); 2369 } 2370 #endif 2371 2372 len = xfer->length; 2373 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2374 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2375 sed = opipe->sed; 2376 2377 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2378 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2379 endpt)); 2380 2381 opipe->u.bulk.isread = isread; 2382 opipe->u.bulk.length = len; 2383 2384 /* Update device address */ 2385 sed->ed.ed_flags = LE( 2386 (LE(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2387 OHCI_ED_SET_FA(addr)); 2388 2389 /* Allocate a chain of new TDs (including a new tail). */ 2390 data = opipe->tail.td; 2391 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags, 2392 &xfer->dmabuf, data, &tail); 2393 if (err) 2394 return (err); 2395 2396 tail->xfer = NULL; 2397 xfer->hcpriv = data; 2398 2399 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2400 "td_cbp=0x%08x td_be=0x%08x\n", 2401 (int)LE(sed->ed.ed_flags), (int)LE(data->td.td_flags), 2402 (int)LE(data->td.td_cbp), (int)LE(data->td.td_be))); 2403 2404 #ifdef OHCI_DEBUG 2405 if (ohcidebug > 4) { 2406 ohci_dump_ed(sed); 2407 ohci_dump_tds(data); 2408 } 2409 #endif 2410 2411 /* Insert ED in schedule */ 2412 s = splusb(); 2413 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2414 tdp->xfer = xfer; 2415 ohci_hash_add_td(sc, tdp); 2416 } 2417 sed->ed.ed_tailp = LE(tail->physaddr); 2418 opipe->tail.td = tail; 2419 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2420 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2421 if (xfer->timeout && !sc->sc_bus.use_polling) { 2422 usb_timeout(ohci_timeout, xfer, 2423 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 2424 } 2425 2426 #if 0 2427 /* This goes wrong if we are too slow. */ 2428 if (ohcidebug > 5) { 2429 usb_delay_ms(&sc->sc_bus, 5); 2430 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2431 OREAD4(sc, OHCI_COMMAND_STATUS))); 2432 ohci_dump_ed(sed); 2433 ohci_dump_tds(data); 2434 } 2435 #endif 2436 2437 splx(s); 2438 2439 return (USBD_IN_PROGRESS); 2440 } 2441 2442 static void 2443 ohci_device_bulk_abort(xfer) 2444 usbd_xfer_handle xfer; 2445 { 2446 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2447 ohci_abort_xfer(xfer, USBD_CANCELLED); 2448 } 2449 2450 /* 2451 * Close a device bulk pipe. 2452 */ 2453 static void 2454 ohci_device_bulk_close(pipe) 2455 usbd_pipe_handle pipe; 2456 { 2457 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2458 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2459 2460 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2461 ohci_close_pipe(pipe, sc->sc_bulk_head); 2462 ohci_free_std(sc, opipe->tail.td); 2463 } 2464 2465 /************************/ 2466 2467 static usbd_status 2468 ohci_device_intr_transfer(xfer) 2469 usbd_xfer_handle xfer; 2470 { 2471 usbd_status err; 2472 2473 /* Insert last in queue. */ 2474 err = usb_insert_transfer(xfer); 2475 if (err) 2476 return (err); 2477 2478 /* Pipe isn't running, start first */ 2479 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2480 } 2481 2482 static usbd_status 2483 ohci_device_intr_start(xfer) 2484 usbd_xfer_handle xfer; 2485 { 2486 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2487 usbd_device_handle dev = opipe->pipe.device; 2488 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2489 ohci_soft_ed_t *sed = opipe->sed; 2490 ohci_soft_td_t *data, *tail; 2491 int len; 2492 int s; 2493 2494 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2495 "flags=%d priv=%p\n", 2496 xfer, xfer->length, xfer->flags, xfer->priv)); 2497 2498 #ifdef DIAGNOSTIC 2499 if (xfer->rqflags & URQ_REQUEST) 2500 panic("ohci_device_intr_transfer: a request\n"); 2501 #endif 2502 2503 len = xfer->length; 2504 2505 data = opipe->tail.td; 2506 tail = ohci_alloc_std(sc); 2507 if (tail == NULL) 2508 return (USBD_NOMEM); 2509 tail->xfer = NULL; 2510 2511 data->td.td_flags = LE( 2512 OHCI_TD_IN | OHCI_TD_NOCC | 2513 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2514 if (xfer->flags & USBD_SHORT_XFER_OK) 2515 data->td.td_flags |= LE(OHCI_TD_R); 2516 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 2517 data->nexttd = tail; 2518 data->td.td_nexttd = LE(tail->physaddr); 2519 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 2520 data->len = len; 2521 data->xfer = xfer; 2522 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2523 xfer->hcpriv = data; 2524 2525 #ifdef OHCI_DEBUG 2526 if (ohcidebug > 5) { 2527 DPRINTF(("ohci_device_intr_transfer:\n")); 2528 ohci_dump_ed(sed); 2529 ohci_dump_tds(data); 2530 } 2531 #endif 2532 2533 /* Insert ED in schedule */ 2534 s = splusb(); 2535 ohci_hash_add_td(sc, data); 2536 sed->ed.ed_tailp = LE(tail->physaddr); 2537 opipe->tail.td = tail; 2538 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2539 2540 #if 0 2541 /* 2542 * This goes horribly wrong, printing thousands of descriptors, 2543 * because false references are followed due to the fact that the 2544 * TD is gone. 2545 */ 2546 if (ohcidebug > 5) { 2547 usb_delay_ms(&sc->sc_bus, 5); 2548 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2549 OREAD4(sc, OHCI_COMMAND_STATUS))); 2550 ohci_dump_ed(sed); 2551 ohci_dump_tds(data); 2552 } 2553 #endif 2554 splx(s); 2555 2556 return (USBD_IN_PROGRESS); 2557 } 2558 2559 /* Abort a device control request. */ 2560 static void 2561 ohci_device_intr_abort(xfer) 2562 usbd_xfer_handle xfer; 2563 { 2564 if (xfer->pipe->intrxfer == xfer) { 2565 DPRINTF(("ohci_device_intr_abort: remove\n")); 2566 xfer->pipe->intrxfer = NULL; 2567 } 2568 ohci_abort_xfer(xfer, USBD_CANCELLED); 2569 } 2570 2571 /* Close a device interrupt pipe. */ 2572 static void 2573 ohci_device_intr_close(pipe) 2574 usbd_pipe_handle pipe; 2575 { 2576 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2577 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2578 int nslots = opipe->u.intr.nslots; 2579 int pos = opipe->u.intr.pos; 2580 int j; 2581 ohci_soft_ed_t *p, *sed = opipe->sed; 2582 int s; 2583 2584 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2585 pipe, nslots, pos)); 2586 s = splusb(); 2587 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 2588 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 2589 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 2590 usb_delay_ms(&sc->sc_bus, 2); 2591 2592 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2593 ; 2594 #ifdef DIAGNOSTIC 2595 if (p == NULL) 2596 panic("ohci_device_intr_close: ED not found\n"); 2597 #endif 2598 p->next = sed->next; 2599 p->ed.ed_nexted = sed->ed.ed_nexted; 2600 splx(s); 2601 2602 for (j = 0; j < nslots; j++) 2603 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2604 2605 ohci_free_std(sc, opipe->tail.td); 2606 ohci_free_sed(sc, opipe->sed); 2607 } 2608 2609 static usbd_status 2610 ohci_device_setintr(sc, opipe, ival) 2611 ohci_softc_t *sc; 2612 struct ohci_pipe *opipe; 2613 int ival; 2614 { 2615 int i, j, s, best; 2616 u_int npoll, slow, shigh, nslots; 2617 u_int bestbw, bw; 2618 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2619 2620 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2621 if (ival == 0) { 2622 printf("ohci_setintr: 0 interval\n"); 2623 return (USBD_INVAL); 2624 } 2625 2626 npoll = OHCI_NO_INTRS; 2627 while (npoll > ival) 2628 npoll /= 2; 2629 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2630 2631 /* 2632 * We now know which level in the tree the ED must go into. 2633 * Figure out which slot has most bandwidth left over. 2634 * Slots to examine: 2635 * npoll 2636 * 1 0 2637 * 2 1 2 2638 * 4 3 4 5 6 2639 * 8 7 8 9 10 11 12 13 14 2640 * N (N-1) .. (N-1+N-1) 2641 */ 2642 slow = npoll-1; 2643 shigh = slow + npoll; 2644 nslots = OHCI_NO_INTRS / npoll; 2645 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2646 bw = 0; 2647 for (j = 0; j < nslots; j++) 2648 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2649 if (bw < bestbw) { 2650 best = i; 2651 bestbw = bw; 2652 } 2653 } 2654 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2655 best, slow, shigh, bestbw)); 2656 2657 s = splusb(); 2658 hsed = sc->sc_eds[best]; 2659 sed->next = hsed->next; 2660 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2661 hsed->next = sed; 2662 hsed->ed.ed_nexted = LE(sed->physaddr); 2663 splx(s); 2664 2665 for (j = 0; j < nslots; j++) 2666 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2667 opipe->u.intr.nslots = nslots; 2668 opipe->u.intr.pos = best; 2669 2670 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2671 return (USBD_NORMAL_COMPLETION); 2672 } 2673 2674 /***********************/ 2675 2676 usbd_status 2677 ohci_device_isoc_transfer(xfer) 2678 usbd_xfer_handle xfer; 2679 { 2680 usbd_status err; 2681 2682 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2683 2684 /* Put it on our queue, */ 2685 err = usb_insert_transfer(xfer); 2686 2687 /* bail out on error, */ 2688 if (err && err != USBD_IN_PROGRESS) 2689 return (err); 2690 2691 /* XXX should check inuse here */ 2692 2693 /* insert into schedule, */ 2694 ohci_device_isoc_enter(xfer); 2695 2696 /* and put on interrupt list if the pipe wasn't running */ 2697 if (!err) 2698 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2699 2700 return (err); 2701 } 2702 2703 void 2704 ohci_device_isoc_enter(xfer) 2705 usbd_xfer_handle xfer; 2706 { 2707 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2708 usbd_device_handle dev = opipe->pipe.device; 2709 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2710 ohci_soft_ed_t *sed = opipe->sed; 2711 struct iso *iso = &opipe->u.iso; 2712 ohci_soft_itd_t *sitd, *nsitd; 2713 ohci_physaddr_t buf, offs; 2714 int i, ncur, nframes; 2715 int ncross; 2716 int s; 2717 2718 s = splusb(); 2719 sitd = opipe->tail.itd; 2720 buf = DMAADDR(&xfer->dmabuf); 2721 sitd->itd.itd_bp0 = LE(buf & OHCI_ITD_PAGE_MASK); 2722 nframes = xfer->nframes; 2723 offs = buf & OHCI_ITD_OFFSET_MASK; 2724 for (i = ncur = 0; i < nframes; i++, ncur++) { 2725 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2726 ncross > 1) { /* too many page crossings */ 2727 2728 nsitd = ohci_alloc_sitd(sc); 2729 if (nsitd == NULL) { 2730 /* XXX what now? */ 2731 return; 2732 } 2733 sitd->nextitd = nsitd; 2734 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2735 sitd->itd.itd_flags = LE( 2736 OHCI_ITD_NOCC | 2737 OHCI_ITD_SET_SF(iso->next) | 2738 OHCI_ITD_NOINTR | 2739 OHCI_ITD_SET_FC(OHCI_ITD_NOFFSET)); 2740 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2741 nsitd->itd.itd_bp0 = LE((buf + offs) & OHCI_ITD_PAGE_MASK); 2742 sitd = nsitd; 2743 iso->next = iso->next + ncur; 2744 ncur = 0; 2745 ncross = 0; 2746 } 2747 /* XXX byte order */ 2748 sitd->itd.itd_offset[i] = 2749 offs | (ncross == 1 ? OHCI_ITD_PAGE_SELECT : 0); 2750 offs += xfer->frlengths[i]; 2751 /* XXX update ncross */ 2752 } 2753 nsitd = ohci_alloc_sitd(sc); 2754 if (nsitd == NULL) { 2755 /* XXX what now? */ 2756 return; 2757 } 2758 sitd->nextitd = nsitd; 2759 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2760 sitd->itd.itd_flags = LE( 2761 OHCI_ITD_NOCC | 2762 OHCI_ITD_SET_SF(iso->next) | 2763 OHCI_ITD_SET_DI(0) | 2764 OHCI_ITD_SET_FC(ncur)); 2765 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2766 iso->next = iso->next + ncur; 2767 2768 opipe->tail.itd = nsitd; 2769 sed->ed.ed_tailp = LE(nsitd->physaddr); 2770 /* XXX update ED */ 2771 splx(s); 2772 } 2773 2774 usbd_status 2775 ohci_device_isoc_start(xfer) 2776 usbd_xfer_handle xfer; 2777 { 2778 printf("ohci_device_isoc_start: not implemented\n"); 2779 return (USBD_INVAL); 2780 } 2781 2782 void 2783 ohci_device_isoc_abort(xfer) 2784 usbd_xfer_handle xfer; 2785 { 2786 } 2787 2788 void 2789 ohci_device_isoc_done(xfer) 2790 usbd_xfer_handle xfer; 2791 { 2792 printf("ohci_device_isoc_done: not implemented\n"); 2793 } 2794 2795 usbd_status 2796 ohci_setup_isoc(pipe) 2797 usbd_pipe_handle pipe; 2798 { 2799 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2800 struct iso *iso = &opipe->u.iso; 2801 2802 iso->next = -1; 2803 iso->inuse = 0; 2804 2805 return (USBD_NORMAL_COMPLETION); 2806 } 2807 2808 void 2809 ohci_device_isoc_close(pipe) 2810 usbd_pipe_handle pipe; 2811 { 2812 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2813 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2814 2815 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 2816 ohci_close_pipe(pipe, sc->sc_isoc_head); 2817 ohci_free_sitd(sc, opipe->tail.itd); 2818 } 2819
Indexes created Thu Sep 25 16:09:42 GMT 2025