ohci.c revision 1.88
1 /* $NetBSD: ohci.c,v 1.88 2000/04/25 14:28:13 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 defined(__FreeBSD__) || defined(__OpenBSD__) 105 #if BYTE_ORDER == BIG_ENDIAN 106 #define htole32(x) (bswap32(x)) 107 #define le32toh(x) (bswap32(x)) 108 #else 109 #define htole32(x) (x) 110 #define le32toh(x) (x) 111 #endif 112 #endif 113 114 struct ohci_pipe; 115 116 Static ohci_soft_ed_t *ohci_alloc_sed __P((ohci_softc_t *)); 117 Static void ohci_free_sed __P((ohci_softc_t *, ohci_soft_ed_t *)); 118 119 Static ohci_soft_td_t *ohci_alloc_std __P((ohci_softc_t *)); 120 Static void ohci_free_std __P((ohci_softc_t *, ohci_soft_td_t *)); 121 122 Static ohci_soft_itd_t *ohci_alloc_sitd __P((ohci_softc_t *)); 123 Static void ohci_free_sitd __P((ohci_softc_t *,ohci_soft_itd_t *)); 124 125 #if 0 126 Static void ohci_free_std_chain __P((ohci_softc_t *, 127 ohci_soft_td_t *, ohci_soft_td_t *)); 128 #endif 129 Static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *, 130 ohci_softc_t *, int, int, usbd_xfer_handle, 131 ohci_soft_td_t *, ohci_soft_td_t **)); 132 133 Static void ohci_shutdown __P((void *v)); 134 Static void ohci_power __P((int, void *)); 135 Static usbd_status ohci_open __P((usbd_pipe_handle)); 136 Static void ohci_poll __P((struct usbd_bus *)); 137 Static void ohci_softintr __P((struct usbd_bus *)); 138 Static void ohci_waitintr __P((ohci_softc_t *, usbd_xfer_handle)); 139 Static void ohci_add_done __P((ohci_softc_t *, ohci_physaddr_t)); 140 Static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 141 142 Static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 143 Static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 144 Static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 145 Static void ohci_hash_add_td __P((ohci_softc_t *, 146 ohci_soft_td_t *)); 147 Static void ohci_hash_rem_td __P((ohci_softc_t *, 148 ohci_soft_td_t *)); 149 Static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 150 ohci_physaddr_t)); 151 Static void ohci_hash_add_itd __P((ohci_softc_t *, 152 ohci_soft_itd_t *)); 153 Static void ohci_hash_rem_itd __P((ohci_softc_t *, 154 ohci_soft_itd_t *)); 155 Static ohci_soft_itd_t *ohci_hash_find_itd __P((ohci_softc_t *, 156 ohci_physaddr_t)); 157 158 Static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 159 Static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 160 161 Static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 162 u_int32_t)); 163 Static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 164 165 Static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 166 Static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 167 168 Static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 169 Static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 170 Static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 171 Static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 172 Static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 173 174 Static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 175 Static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 176 Static void ohci_root_intr_abort __P((usbd_xfer_handle)); 177 Static void ohci_root_intr_close __P((usbd_pipe_handle)); 178 Static void ohci_root_intr_done __P((usbd_xfer_handle)); 179 180 Static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 181 Static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 182 Static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 183 Static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 184 Static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 185 186 Static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 187 Static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 188 Static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 189 Static void ohci_device_bulk_close __P((usbd_pipe_handle)); 190 Static void ohci_device_bulk_done __P((usbd_xfer_handle)); 191 192 Static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 193 Static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 194 Static void ohci_device_intr_abort __P((usbd_xfer_handle)); 195 Static void ohci_device_intr_close __P((usbd_pipe_handle)); 196 Static void ohci_device_intr_done __P((usbd_xfer_handle)); 197 198 Static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 199 Static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 200 Static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 201 Static void ohci_device_isoc_close __P((usbd_pipe_handle)); 202 Static void ohci_device_isoc_done __P((usbd_xfer_handle)); 203 204 Static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 205 struct ohci_pipe *pipe, int ival)); 206 207 Static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 208 209 Static void ohci_timeout __P((void *)); 210 Static void ohci_rhsc_able __P((ohci_softc_t *, int)); 211 212 Static void ohci_close_pipe __P((usbd_pipe_handle pipe, 213 ohci_soft_ed_t *head)); 214 Static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 215 usbd_status status)); 216 Static void ohci_abort_xfer_end __P((void *)); 217 218 Static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 219 Static void ohci_noop __P((usbd_pipe_handle pipe)); 220 221 #ifdef OHCI_DEBUG 222 Static void ohci_dumpregs __P((ohci_softc_t *)); 223 Static void ohci_dump_tds __P((ohci_soft_td_t *)); 224 Static void ohci_dump_td __P((ohci_soft_td_t *)); 225 Static void ohci_dump_ed __P((ohci_soft_ed_t *)); 226 Static void ohci_dump_itd __P((ohci_soft_itd_t *)); 227 Static void ohci_dump_itds __P((ohci_soft_itd_t *)); 228 #endif 229 230 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 231 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 232 #define OWRITE1(sc, r, x) \ 233 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 234 #define OWRITE2(sc, r, x) \ 235 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 236 #define OWRITE4(sc, r, x) \ 237 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 238 #define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 239 #define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 240 #define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 241 242 /* Reverse the bits in a value 0 .. 31 */ 243 Static u_int8_t revbits[OHCI_NO_INTRS] = 244 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 245 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 246 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 247 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 248 249 struct ohci_pipe { 250 struct usbd_pipe pipe; 251 ohci_soft_ed_t *sed; 252 union { 253 ohci_soft_td_t *td; 254 ohci_soft_itd_t *itd; 255 } tail; 256 /* Info needed for different pipe kinds. */ 257 union { 258 /* Control pipe */ 259 struct { 260 usb_dma_t reqdma; 261 u_int length; 262 ohci_soft_td_t *setup, *data, *stat; 263 } ctl; 264 /* Interrupt pipe */ 265 struct { 266 int nslots; 267 int pos; 268 } intr; 269 /* Bulk pipe */ 270 struct { 271 u_int length; 272 int isread; 273 } bulk; 274 /* Iso pipe */ 275 struct iso { 276 int next, inuse; 277 } iso; 278 } u; 279 }; 280 281 #define OHCI_INTR_ENDPT 1 282 283 Static struct usbd_bus_methods ohci_bus_methods = { 284 ohci_open, 285 ohci_softintr, 286 ohci_poll, 287 ohci_allocm, 288 ohci_freem, 289 ohci_allocx, 290 ohci_freex, 291 }; 292 293 Static struct usbd_pipe_methods ohci_root_ctrl_methods = { 294 ohci_root_ctrl_transfer, 295 ohci_root_ctrl_start, 296 ohci_root_ctrl_abort, 297 ohci_root_ctrl_close, 298 ohci_noop, 299 ohci_root_ctrl_done, 300 }; 301 302 Static struct usbd_pipe_methods ohci_root_intr_methods = { 303 ohci_root_intr_transfer, 304 ohci_root_intr_start, 305 ohci_root_intr_abort, 306 ohci_root_intr_close, 307 ohci_noop, 308 ohci_root_intr_done, 309 }; 310 311 Static struct usbd_pipe_methods ohci_device_ctrl_methods = { 312 ohci_device_ctrl_transfer, 313 ohci_device_ctrl_start, 314 ohci_device_ctrl_abort, 315 ohci_device_ctrl_close, 316 ohci_noop, 317 ohci_device_ctrl_done, 318 }; 319 320 Static struct usbd_pipe_methods ohci_device_intr_methods = { 321 ohci_device_intr_transfer, 322 ohci_device_intr_start, 323 ohci_device_intr_abort, 324 ohci_device_intr_close, 325 ohci_device_clear_toggle, 326 ohci_device_intr_done, 327 }; 328 329 Static struct usbd_pipe_methods ohci_device_bulk_methods = { 330 ohci_device_bulk_transfer, 331 ohci_device_bulk_start, 332 ohci_device_bulk_abort, 333 ohci_device_bulk_close, 334 ohci_device_clear_toggle, 335 ohci_device_bulk_done, 336 }; 337 338 Static struct usbd_pipe_methods ohci_device_isoc_methods = { 339 ohci_device_isoc_transfer, 340 ohci_device_isoc_start, 341 ohci_device_isoc_abort, 342 ohci_device_isoc_close, 343 ohci_noop, 344 ohci_device_isoc_done, 345 }; 346 347 #if defined(__NetBSD__) || defined(__OpenBSD__) 348 int 349 ohci_activate(self, act) 350 device_ptr_t self; 351 enum devact act; 352 { 353 struct ohci_softc *sc = (struct ohci_softc *)self; 354 int rv = 0; 355 356 switch (act) { 357 case DVACT_ACTIVATE: 358 return (EOPNOTSUPP); 359 break; 360 361 case DVACT_DEACTIVATE: 362 if (sc->sc_child != NULL) 363 rv = config_deactivate(sc->sc_child); 364 sc->sc_dying = 1; 365 break; 366 } 367 return (rv); 368 } 369 370 int 371 ohci_detach(sc, flags) 372 struct ohci_softc *sc; 373 int flags; 374 { 375 int rv = 0; 376 377 if (sc->sc_child != NULL) 378 rv = config_detach(sc->sc_child, flags); 379 380 if (rv != 0) 381 return (rv); 382 383 #if defined(__NetBSD__) || defined(__OpenBSD__) 384 powerhook_disestablish(sc->sc_powerhook); 385 shutdownhook_disestablish(sc->sc_shutdownhook); 386 #endif 387 388 /* free data structures XXX */ 389 390 return (rv); 391 } 392 #endif 393 394 ohci_soft_ed_t * 395 ohci_alloc_sed(sc) 396 ohci_softc_t *sc; 397 { 398 ohci_soft_ed_t *sed; 399 usbd_status err; 400 int i, offs; 401 usb_dma_t dma; 402 403 if (sc->sc_freeeds == NULL) { 404 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 405 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 406 OHCI_ED_ALIGN, &dma); 407 if (err) 408 return (0); 409 for(i = 0; i < OHCI_SED_CHUNK; i++) { 410 offs = i * OHCI_SED_SIZE; 411 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 412 sed->physaddr = DMAADDR(&dma) + offs; 413 sed->next = sc->sc_freeeds; 414 sc->sc_freeeds = sed; 415 } 416 } 417 sed = sc->sc_freeeds; 418 sc->sc_freeeds = sed->next; 419 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 420 sed->next = 0; 421 return (sed); 422 } 423 424 void 425 ohci_free_sed(sc, sed) 426 ohci_softc_t *sc; 427 ohci_soft_ed_t *sed; 428 { 429 sed->next = sc->sc_freeeds; 430 sc->sc_freeeds = sed; 431 } 432 433 ohci_soft_td_t * 434 ohci_alloc_std(sc) 435 ohci_softc_t *sc; 436 { 437 ohci_soft_td_t *std; 438 usbd_status err; 439 int i, offs; 440 usb_dma_t dma; 441 int s; 442 443 if (sc->sc_freetds == NULL) { 444 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 445 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 446 OHCI_TD_ALIGN, &dma); 447 if (err) 448 return (NULL); 449 s = splusb(); 450 for(i = 0; i < OHCI_STD_CHUNK; i++) { 451 offs = i * OHCI_STD_SIZE; 452 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 453 std->physaddr = DMAADDR(&dma) + offs; 454 std->nexttd = sc->sc_freetds; 455 sc->sc_freetds = std; 456 } 457 splx(s); 458 } 459 460 s = splusb(); 461 std = sc->sc_freetds; 462 sc->sc_freetds = std->nexttd; 463 memset(&std->td, 0, sizeof(ohci_td_t)); 464 std->nexttd = NULL; 465 std->xfer = NULL; 466 ohci_hash_add_td(sc, std); 467 splx(s); 468 469 return (std); 470 } 471 472 void 473 ohci_free_std(sc, std) 474 ohci_softc_t *sc; 475 ohci_soft_td_t *std; 476 { 477 int s; 478 479 s = splusb(); 480 ohci_hash_rem_td(sc, std); 481 std->nexttd = sc->sc_freetds; 482 sc->sc_freetds = std; 483 splx(s); 484 } 485 486 usbd_status 487 ohci_alloc_std_chain(opipe, sc, alen, rd, xfer, sp, ep) 488 struct ohci_pipe *opipe; 489 ohci_softc_t *sc; 490 int alen, rd; 491 usbd_xfer_handle xfer; 492 ohci_soft_td_t *sp, **ep; 493 { 494 ohci_soft_td_t *next, *cur; 495 ohci_physaddr_t dataphys, dataphysend; 496 u_int32_t tdflags; 497 int len, curlen; 498 usb_dma_t *dma = &xfer->dmabuf; 499 u_int16_t flags = xfer->flags; 500 501 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 502 503 len = alen; 504 cur = sp; 505 dataphys = DMAADDR(dma); 506 dataphysend = OHCI_PAGE(dataphys + len - 1); 507 tdflags = htole32( 508 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 509 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 510 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 511 512 for (;;) { 513 next = ohci_alloc_std(sc); 514 if (next == NULL) 515 goto nomem; 516 517 /* The OHCI hardware can handle at most one page crossing. */ 518 if (OHCI_PAGE(dataphys) == dataphysend || 519 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 520 /* we can handle it in this TD */ 521 curlen = len; 522 } else { 523 /* must use multiple TDs, fill as much as possible. */ 524 curlen = 2 * OHCI_PAGE_SIZE - 525 (dataphys & (OHCI_PAGE_SIZE-1)); 526 /* the length must be a multiple of the max size */ 527 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 528 #ifdef DIAGNOSTIC 529 if (curlen == 0) 530 panic("ohci_alloc_std: curlen == 0\n"); 531 #endif 532 } 533 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 534 "dataphysend=0x%08x len=%d curlen=%d\n", 535 dataphys, dataphysend, 536 len, curlen)); 537 len -= curlen; 538 539 cur->td.td_flags = tdflags; 540 cur->td.td_cbp = htole32(dataphys); 541 cur->nexttd = next; 542 cur->td.td_nexttd = htole32(next->physaddr); 543 cur->td.td_be = htole32(dataphys + curlen - 1); 544 cur->len = curlen; 545 cur->flags = OHCI_ADD_LEN; 546 cur->xfer = xfer; 547 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 548 dataphys, dataphys + curlen - 1)); 549 if (len == 0) 550 break; 551 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 552 dataphys += curlen; 553 cur = next; 554 } 555 if ((flags & USBD_FORCE_SHORT_XFER) && 556 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 557 /* Force a 0 length transfer at the end. */ 558 559 cur = next; 560 next = ohci_alloc_std(sc); 561 if (next == NULL) 562 goto nomem; 563 564 cur->td.td_flags = tdflags; 565 cur->td.td_cbp = 0; /* indicate 0 length packet */ 566 cur->nexttd = next; 567 cur->td.td_nexttd = htole32(next->physaddr); 568 cur->td.td_be = ~0; 569 cur->len = 0; 570 cur->flags = 0; 571 cur->xfer = xfer; 572 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 573 } 574 *ep = cur; 575 576 return (USBD_NORMAL_COMPLETION); 577 578 nomem: 579 /* XXX free chain */ 580 return (USBD_NOMEM); 581 } 582 583 #if 0 584 Static void 585 ohci_free_std_chain(sc, std, stdend) 586 ohci_softc_t *sc; 587 ohci_soft_td_t *std; 588 ohci_soft_td_t *stdend; 589 { 590 ohci_soft_td_t *p; 591 592 for (; std != stdend; std = p) { 593 p = std->nexttd; 594 ohci_free_std(sc, std); 595 } 596 } 597 #endif 598 599 ohci_soft_itd_t * 600 ohci_alloc_sitd(sc) 601 ohci_softc_t *sc; 602 { 603 ohci_soft_itd_t *sitd; 604 usbd_status err; 605 int i, s, offs; 606 usb_dma_t dma; 607 608 if (sc->sc_freeitds == NULL) { 609 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 610 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 611 OHCI_ITD_ALIGN, &dma); 612 if (err) 613 return (NULL); 614 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 615 offs = i * OHCI_SITD_SIZE; 616 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 617 sitd->physaddr = DMAADDR(&dma) + offs; 618 sitd->nextitd = sc->sc_freeitds; 619 sc->sc_freeitds = sitd; 620 } 621 } 622 623 s = splusb(); 624 sitd = sc->sc_freeitds; 625 sc->sc_freeitds = sitd->nextitd; 626 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 627 sitd->nextitd = NULL; 628 sitd->xfer = NULL; 629 ohci_hash_add_itd(sc, sitd); 630 splx(s); 631 632 #ifdef DIAGNOSTIC 633 sitd->isdone = 0; 634 #endif 635 636 return (sitd); 637 } 638 639 void 640 ohci_free_sitd(sc, sitd) 641 ohci_softc_t *sc; 642 ohci_soft_itd_t *sitd; 643 { 644 int s; 645 646 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 647 648 #ifdef DIAGNOSTIC 649 if (!sitd->isdone) { 650 panic("ohci_free_sitd: sitd=%p not done\n", sitd); 651 return; 652 } 653 #endif 654 655 s = splusb(); 656 ohci_hash_rem_itd(sc, sitd); 657 sitd->nextitd = sc->sc_freeitds; 658 sc->sc_freeitds = sitd; 659 splx(s); 660 } 661 662 usbd_status 663 ohci_init(sc) 664 ohci_softc_t *sc; 665 { 666 ohci_soft_ed_t *sed, *psed; 667 usbd_status err; 668 int i; 669 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 670 671 DPRINTF(("ohci_init: start\n")); 672 #if defined(__OpenBSD__) 673 printf(","); 674 #else 675 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 676 #endif 677 rev = OREAD4(sc, OHCI_REVISION); 678 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 679 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 680 681 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 682 printf("%s: unsupported OHCI revision\n", 683 USBDEVNAME(sc->sc_bus.bdev)); 684 sc->sc_bus.usbrev = USBREV_UNKNOWN; 685 return (USBD_INVAL); 686 } 687 sc->sc_bus.usbrev = USBREV_1_0; 688 689 for (i = 0; i < OHCI_HASH_SIZE; i++) 690 LIST_INIT(&sc->sc_hash_tds[i]); 691 for (i = 0; i < OHCI_HASH_SIZE; i++) 692 LIST_INIT(&sc->sc_hash_itds[i]); 693 694 SIMPLEQ_INIT(&sc->sc_free_xfers); 695 696 /* XXX determine alignment by R/W */ 697 /* Allocate the HCCA area. */ 698 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 699 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 700 if (err) 701 return (err); 702 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 703 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 704 705 sc->sc_eintrs = OHCI_NORMAL_INTRS; 706 707 /* Allocate dummy ED that starts the control list. */ 708 sc->sc_ctrl_head = ohci_alloc_sed(sc); 709 if (sc->sc_ctrl_head == NULL) { 710 err = USBD_NOMEM; 711 goto bad1; 712 } 713 sc->sc_ctrl_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 714 715 /* Allocate dummy ED that starts the bulk list. */ 716 sc->sc_bulk_head = ohci_alloc_sed(sc); 717 if (sc->sc_bulk_head == NULL) { 718 err = USBD_NOMEM; 719 goto bad2; 720 } 721 sc->sc_bulk_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 722 723 /* Allocate dummy ED that starts the isochronous list. */ 724 sc->sc_isoc_head = ohci_alloc_sed(sc); 725 if (sc->sc_isoc_head == NULL) { 726 err = USBD_NOMEM; 727 goto bad3; 728 } 729 sc->sc_isoc_head->ed.ed_flags |= htole32(OHCI_ED_SKIP); 730 731 /* Allocate all the dummy EDs that make up the interrupt tree. */ 732 for (i = 0; i < OHCI_NO_EDS; i++) { 733 sed = ohci_alloc_sed(sc); 734 if (sed == NULL) { 735 while (--i >= 0) 736 ohci_free_sed(sc, sc->sc_eds[i]); 737 err = USBD_NOMEM; 738 goto bad4; 739 } 740 /* All ED fields are set to 0. */ 741 sc->sc_eds[i] = sed; 742 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 743 if (i != 0) 744 psed = sc->sc_eds[(i-1) / 2]; 745 else 746 psed= sc->sc_isoc_head; 747 sed->next = psed; 748 sed->ed.ed_nexted = htole32(psed->physaddr); 749 } 750 /* 751 * Fill HCCA interrupt table. The bit reversal is to get 752 * the tree set up properly to spread the interrupts. 753 */ 754 for (i = 0; i < OHCI_NO_INTRS; i++) 755 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 756 htole32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 757 758 #ifdef OHCI_DEBUG 759 if (ohcidebug > 15) { 760 for (i = 0; i < OHCI_NO_EDS; i++) { 761 printf("ed#%d ", i); 762 ohci_dump_ed(sc->sc_eds[i]); 763 } 764 printf("iso "); 765 ohci_dump_ed(sc->sc_isoc_head); 766 } 767 #endif 768 769 /* Determine in what context we are running. */ 770 ctl = OREAD4(sc, OHCI_CONTROL); 771 if (ctl & OHCI_IR) { 772 /* SMM active, request change */ 773 DPRINTF(("ohci_init: SMM active, request owner change\n")); 774 s = OREAD4(sc, OHCI_COMMAND_STATUS); 775 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 776 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 777 usb_delay_ms(&sc->sc_bus, 1); 778 ctl = OREAD4(sc, OHCI_CONTROL); 779 } 780 if ((ctl & OHCI_IR) == 0) { 781 printf("%s: SMM does not respond, resetting\n", 782 USBDEVNAME(sc->sc_bus.bdev)); 783 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 784 goto reset; 785 } 786 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 787 /* BIOS started controller. */ 788 DPRINTF(("ohci_init: BIOS active\n")); 789 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 790 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 791 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 792 } 793 } else { 794 DPRINTF(("ohci_init: cold started\n")); 795 reset: 796 /* Controller was cold started. */ 797 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 798 } 799 800 /* 801 * This reset should not be necessary according to the OHCI spec, but 802 * without it some controllers do not start. 803 */ 804 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 805 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 806 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 807 808 /* We now own the host controller and the bus has been reset. */ 809 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 810 811 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 812 /* Nominal time for a reset is 10 us. */ 813 for (i = 0; i < 10; i++) { 814 delay(10); 815 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 816 if (!hcr) 817 break; 818 } 819 if (hcr) { 820 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 821 err = USBD_IOERROR; 822 goto bad5; 823 } 824 #ifdef OHCI_DEBUG 825 if (ohcidebug > 15) 826 ohci_dumpregs(sc); 827 #endif 828 829 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 830 831 /* Set up HC registers. */ 832 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 833 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 834 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 835 /* disable all interrupts and then switch on all desired interrupts */ 836 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 837 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 838 /* switch on desired functional features */ 839 ctl = OREAD4(sc, OHCI_CONTROL); 840 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 841 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 842 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 843 /* And finally start it! */ 844 OWRITE4(sc, OHCI_CONTROL, ctl); 845 846 /* 847 * The controller is now OPERATIONAL. Set a some final 848 * registers that should be set earlier, but that the 849 * controller ignores when in the SUSPEND state. 850 */ 851 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 852 fm |= OHCI_FSMPS(ival) | ival; 853 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 854 per = OHCI_PERIODIC(ival); /* 90% periodic */ 855 OWRITE4(sc, OHCI_PERIODIC_START, per); 856 857 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 858 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 859 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 860 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 861 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 862 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 863 864 /* 865 * The AMD756 requires a delay before re-reading the register, 866 * otherwise it will occasionally report 0 ports. 867 */ 868 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 869 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 870 871 #ifdef OHCI_DEBUG 872 if (ohcidebug > 5) 873 ohci_dumpregs(sc); 874 #endif 875 876 /* Set up the bus struct. */ 877 sc->sc_bus.methods = &ohci_bus_methods; 878 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 879 880 #if defined(__NetBSD__) || defined(__OpenBSD__) 881 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 882 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 883 #endif 884 885 return (USBD_NORMAL_COMPLETION); 886 887 bad5: 888 for (i = 0; i < OHCI_NO_EDS; i++) 889 ohci_free_sed(sc, sc->sc_eds[i]); 890 bad4: 891 ohci_free_sed(sc, sc->sc_isoc_head); 892 bad3: 893 ohci_free_sed(sc, sc->sc_ctrl_head); 894 bad2: 895 ohci_free_sed(sc, sc->sc_bulk_head); 896 bad1: 897 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 898 return (err); 899 } 900 901 usbd_status 902 ohci_allocm(bus, dma, size) 903 struct usbd_bus *bus; 904 usb_dma_t *dma; 905 u_int32_t size; 906 { 907 #if defined(__NetBSD__) || defined(__OpenBSD__) 908 struct ohci_softc *sc = (struct ohci_softc *)bus; 909 #endif 910 911 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 912 } 913 914 void 915 ohci_freem(bus, dma) 916 struct usbd_bus *bus; 917 usb_dma_t *dma; 918 { 919 #if defined(__NetBSD__) || defined(__OpenBSD__) 920 struct ohci_softc *sc = (struct ohci_softc *)bus; 921 #endif 922 923 usb_freemem(&sc->sc_bus, dma); 924 } 925 926 usbd_xfer_handle 927 ohci_allocx(bus) 928 struct usbd_bus *bus; 929 { 930 struct ohci_softc *sc = (struct ohci_softc *)bus; 931 usbd_xfer_handle xfer; 932 933 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 934 if (xfer != NULL) 935 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 936 else 937 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 938 if (xfer != NULL) 939 memset(xfer, 0, sizeof *xfer); 940 return (xfer); 941 } 942 943 void 944 ohci_freex(bus, xfer) 945 struct usbd_bus *bus; 946 usbd_xfer_handle xfer; 947 { 948 struct ohci_softc *sc = (struct ohci_softc *)bus; 949 950 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 951 } 952 953 /* 954 * Shut down the controller when the system is going down. 955 */ 956 void 957 ohci_shutdown(v) 958 void *v; 959 { 960 ohci_softc_t *sc = v; 961 962 DPRINTF(("ohci_shutdown: stopping the HC\n")); 963 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 964 } 965 966 /* 967 * Handle suspend/resume. 968 * 969 * We need to switch to polling mode here, because this routine is 970 * called from an intterupt context. This is all right since we 971 * are almost suspended anyway. 972 */ 973 void 974 ohci_power(why, v) 975 int why; 976 void *v; 977 { 978 #ifdef OHCI_DEBUG 979 ohci_softc_t *sc = v; 980 981 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 982 /* XXX should suspend/resume */ 983 ohci_dumpregs(sc); 984 #endif 985 } 986 987 #ifdef OHCI_DEBUG 988 void 989 ohci_dumpregs(sc) 990 ohci_softc_t *sc; 991 { 992 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 993 OREAD4(sc, OHCI_REVISION), 994 OREAD4(sc, OHCI_CONTROL), 995 OREAD4(sc, OHCI_COMMAND_STATUS))); 996 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 997 OREAD4(sc, OHCI_INTERRUPT_STATUS), 998 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 999 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 1000 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 1001 OREAD4(sc, OHCI_HCCA), 1002 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 1003 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 1004 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 1005 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 1006 OREAD4(sc, OHCI_BULK_HEAD_ED), 1007 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1008 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1009 OREAD4(sc, OHCI_DONE_HEAD), 1010 OREAD4(sc, OHCI_FM_INTERVAL), 1011 OREAD4(sc, OHCI_FM_REMAINING))); 1012 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1013 OREAD4(sc, OHCI_FM_NUMBER), 1014 OREAD4(sc, OHCI_PERIODIC_START), 1015 OREAD4(sc, OHCI_LS_THRESHOLD))); 1016 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1017 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1018 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1019 OREAD4(sc, OHCI_RH_STATUS))); 1020 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1021 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1022 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1023 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1024 le32toh(sc->sc_hcca->hcca_frame_number), 1025 le32toh(sc->sc_hcca->hcca_done_head))); 1026 } 1027 #endif 1028 1029 Static int ohci_intr1 __P((ohci_softc_t *)); 1030 1031 int 1032 ohci_intr(p) 1033 void *p; 1034 { 1035 ohci_softc_t *sc = p; 1036 1037 /* If we get an interrupt while polling, then just ignore it. */ 1038 if (sc->sc_bus.use_polling) { 1039 #ifdef DIAGNOSTIC 1040 printf("ohci_intr: ignored interrupt while polling\n"); 1041 #endif 1042 return (0); 1043 } 1044 1045 return (ohci_intr1(sc)); 1046 } 1047 1048 Static int 1049 ohci_intr1(sc) 1050 ohci_softc_t *sc; 1051 { 1052 u_int32_t intrs, eintrs; 1053 ohci_physaddr_t done; 1054 1055 /* In case the interrupt occurs before initialization has completed. */ 1056 if (sc == NULL || sc->sc_hcca == NULL) { 1057 #ifdef DIAGNOSTIC 1058 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1059 #endif 1060 return (0); 1061 } 1062 1063 intrs = 0; 1064 done = le32toh(sc->sc_hcca->hcca_done_head); 1065 if (done != 0) { 1066 if (done & ~OHCI_DONE_INTRS) 1067 intrs = OHCI_WDH; 1068 if (done & OHCI_DONE_INTRS) 1069 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 1070 } else 1071 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1072 1073 if (!intrs) 1074 return (0); 1075 1076 intrs &= ~OHCI_MIE; 1077 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 1078 eintrs = intrs & sc->sc_eintrs; 1079 if (!eintrs) 1080 return (0); 1081 1082 sc->sc_bus.intr_context++; 1083 sc->sc_bus.no_intrs++; 1084 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1085 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1086 (u_int)eintrs)); 1087 1088 if (eintrs & OHCI_SO) { 1089 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1090 /* XXX do what */ 1091 intrs &= ~OHCI_SO; 1092 } 1093 if (eintrs & OHCI_WDH) { 1094 ohci_add_done(sc, done &~ OHCI_DONE_INTRS); 1095 sc->sc_hcca->hcca_done_head = 0; 1096 usb_schedsoftintr(&sc->sc_bus); 1097 intrs &= ~OHCI_WDH; 1098 } 1099 if (eintrs & OHCI_RD) { 1100 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1101 /* XXX process resume detect */ 1102 } 1103 if (eintrs & OHCI_UE) { 1104 printf("%s: unrecoverable error, controller halted\n", 1105 USBDEVNAME(sc->sc_bus.bdev)); 1106 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1107 /* XXX what else */ 1108 } 1109 if (eintrs & OHCI_RHSC) { 1110 ohci_rhsc(sc, sc->sc_intrxfer); 1111 intrs &= ~OHCI_RHSC; 1112 1113 /* 1114 * Disable RHSC interrupt for now, because it will be 1115 * on until the port has been reset. 1116 */ 1117 ohci_rhsc_able(sc, 0); 1118 } 1119 1120 sc->sc_bus.intr_context--; 1121 1122 /* Block unprocessed interrupts. XXX */ 1123 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1124 sc->sc_eintrs &= ~intrs; 1125 1126 return (1); 1127 } 1128 1129 void 1130 ohci_rhsc_able(sc, on) 1131 ohci_softc_t *sc; 1132 int on; 1133 { 1134 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1135 if (on) { 1136 sc->sc_eintrs |= OHCI_RHSC; 1137 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1138 } else { 1139 sc->sc_eintrs &= ~OHCI_RHSC; 1140 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1141 } 1142 } 1143 1144 #ifdef OHCI_DEBUG 1145 char *ohci_cc_strs[] = { 1146 "NO_ERROR", 1147 "CRC", 1148 "BIT_STUFFING", 1149 "DATA_TOGGLE_MISMATCH", 1150 "STALL", 1151 "DEVICE_NOT_RESPONDING", 1152 "PID_CHECK_FAILURE", 1153 "UNEXPECTED_PID", 1154 "DATA_OVERRUN", 1155 "DATA_UNDERRUN", 1156 "BUFFER_OVERRUN", 1157 "BUFFER_UNDERRUN", 1158 "reserved", 1159 "reserved", 1160 "NOT_ACCESSED", 1161 "NOT_ACCESSED", 1162 }; 1163 #endif 1164 1165 void 1166 ohci_add_done(sc, done) 1167 ohci_softc_t *sc; 1168 ohci_physaddr_t done; 1169 { 1170 ohci_soft_itd_t *sitd, *sidone, **ip; 1171 ohci_soft_td_t *std, *sdone, **p; 1172 1173 /* Reverse the done list. */ 1174 for (sdone = NULL, sidone = NULL; done != 0; ) { 1175 std = ohci_hash_find_td(sc, done); 1176 if (std != NULL) { 1177 std->dnext = sdone; 1178 done = le32toh(std->td.td_nexttd); 1179 sdone = std; 1180 DPRINTFN(10,("add TD %p\n", std)); 1181 continue; 1182 } 1183 sitd = ohci_hash_find_itd(sc, done); 1184 if (sitd != NULL) { 1185 sitd->dnext = sidone; 1186 done = le32toh(sitd->itd.itd_nextitd); 1187 sidone = sitd; 1188 DPRINTFN(5,("add ITD %p\n", sitd)); 1189 continue; 1190 } 1191 panic("ohci_add_done: addr 0x%08lx not found\n", (u_long)done); 1192 } 1193 1194 /* sdone & sidone now hold the done lists. */ 1195 /* Put them on the already processed lists. */ 1196 for (p = &sc->sc_sdone; *p != NULL; p = &(*p)->dnext) 1197 ; 1198 *p = sdone; 1199 for (ip = &sc->sc_sidone; *ip != NULL; ip = &(*ip)->dnext) 1200 ; 1201 *ip = sidone; 1202 } 1203 1204 void baaz(void); 1205 void baaz(void) {} 1206 1207 void 1208 ohci_softintr(bus) 1209 struct usbd_bus *bus; 1210 { 1211 ohci_softc_t *sc = (ohci_softc_t *)bus; 1212 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1213 ohci_soft_td_t *std, *sdone, *stdnext; 1214 usbd_xfer_handle xfer; 1215 int len, cc, s; 1216 1217 sc->sc_bus.intr_context++; 1218 1219 s = splhardusb(); 1220 sdone = sc->sc_sdone; 1221 sc->sc_sdone = NULL; 1222 sidone = sc->sc_sidone; 1223 sc->sc_sidone = NULL; 1224 splx(s); 1225 1226 DPRINTFN(10,("ohci_process_done: sdone=%p sidone=%p\n", sdone, sidone)); 1227 1228 #ifdef OHCI_DEBUG 1229 if (ohcidebug > 10) { 1230 DPRINTF(("ohci_process_done: TD done:\n")); 1231 ohci_dump_tds(sdone); 1232 } 1233 #endif 1234 1235 for (std = sdone; std; std = stdnext) { 1236 xfer = std->xfer; 1237 stdnext = std->dnext; 1238 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1239 std, xfer, xfer ? xfer->hcpriv : 0)); 1240 if (xfer == NULL) { 1241 /* xfer == NULL: There seems to be no xfer associated 1242 * with this TD. It is tailp that happened to end up on 1243 * the done queue. 1244 */ 1245 continue; 1246 } 1247 if (xfer->status == USBD_CANCELLED || 1248 xfer->status == USBD_TIMEOUT) { 1249 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1250 xfer)); 1251 /* Handled by abort routine. */ 1252 continue; 1253 } 1254 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1255 cc = OHCI_TD_GET_CC(le32toh(std->td.td_flags)); 1256 if (cc == OHCI_CC_NO_ERROR) { 1257 len = std->len; 1258 if (std->td.td_cbp != 0) 1259 len -= le32toh(std->td.td_be) - 1260 le32toh(std->td.td_cbp) + 1; 1261 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", 1262 len, std->flags)); 1263 if (std->flags & OHCI_ADD_LEN) 1264 xfer->actlen += len; 1265 if (std->flags & OHCI_CALL_DONE) { 1266 xfer->status = USBD_NORMAL_COMPLETION; 1267 usb_transfer_complete(xfer); 1268 } 1269 ohci_free_std(sc, std); 1270 } else { 1271 /* 1272 * Endpoint is halted. First unlink all the TDs 1273 * belonging to the failed transfer, and then restart 1274 * the endpoint. 1275 */ 1276 ohci_soft_td_t *p, *n; 1277 struct ohci_pipe *opipe = 1278 (struct ohci_pipe *)xfer->pipe; 1279 1280 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1281 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1282 ohci_cc_strs[OHCI_TD_GET_CC(le32toh(std->td.td_flags))])); 1283 1284 /* remove TDs */ 1285 for (p = std; p->xfer == xfer; p = n) { 1286 n = p->nexttd; 1287 ohci_free_std(sc, p); 1288 } 1289 1290 /* clear halt */ 1291 opipe->sed->ed.ed_headp = htole32(p->physaddr); 1292 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1293 1294 if (cc == OHCI_CC_STALL) 1295 xfer->status = USBD_STALLED; 1296 else 1297 xfer->status = USBD_IOERROR; 1298 usb_transfer_complete(xfer); 1299 } 1300 } 1301 1302 #ifdef OHCI_DEBUG 1303 if (ohcidebug > 10) { 1304 DPRINTF(("ohci_process_done: ITD done:\n")); 1305 ohci_dump_itds(sidone); 1306 } 1307 #endif 1308 1309 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1310 xfer = sitd->xfer; 1311 sitdnext = sitd->dnext; 1312 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1313 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1314 if (xfer == NULL) 1315 continue; 1316 if (xfer->status == USBD_CANCELLED || 1317 xfer->status == USBD_TIMEOUT) { 1318 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1319 xfer)); 1320 /* Handled by abort routine. */ 1321 continue; 1322 } 1323 #ifdef DIAGNOSTIC 1324 if (sitd->isdone) 1325 printf("ohci_softintr: sitd=%p is done\n", sitd); 1326 sitd->isdone = 1; 1327 #endif 1328 cc = OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)); 1329 if (cc == OHCI_CC_NO_ERROR) { 1330 /* XXX compute length for input */ 1331 struct ohci_pipe *opipe = 1332 (struct ohci_pipe *)xfer->pipe; 1333 if (sitd->flags & OHCI_CALL_DONE) { 1334 opipe->u.iso.inuse -= xfer->nframes; 1335 /* XXX xfer->actlen = actlen; */ 1336 xfer->status = USBD_NORMAL_COMPLETION; 1337 usb_transfer_complete(xfer); 1338 } 1339 } else { 1340 /* XXX Do more */ 1341 xfer->status = USBD_IOERROR; 1342 usb_transfer_complete(xfer); 1343 } 1344 } 1345 1346 sc->sc_bus.intr_context--; 1347 } 1348 1349 void 1350 ohci_device_ctrl_done(xfer) 1351 usbd_xfer_handle xfer; 1352 { 1353 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1354 1355 #ifdef DIAGNOSTIC 1356 if (!(xfer->rqflags & URQ_REQUEST)) { 1357 panic("ohci_ctrl_done: not a request\n"); 1358 } 1359 #endif 1360 xfer->hcpriv = NULL; 1361 } 1362 1363 void 1364 ohci_device_intr_done(xfer) 1365 usbd_xfer_handle xfer; 1366 { 1367 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1368 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1369 ohci_soft_ed_t *sed = opipe->sed; 1370 ohci_soft_td_t *data, *tail; 1371 1372 1373 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1374 xfer, xfer->actlen)); 1375 1376 xfer->hcpriv = NULL; 1377 1378 if (xfer->pipe->repeat) { 1379 data = opipe->tail.td; 1380 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1381 if (tail == NULL) { 1382 xfer->status = USBD_NOMEM; 1383 return; 1384 } 1385 tail->xfer = NULL; 1386 1387 data->td.td_flags = htole32( 1388 OHCI_TD_IN | OHCI_TD_NOCC | 1389 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1390 if (xfer->flags & USBD_SHORT_XFER_OK) 1391 data->td.td_flags |= htole32(OHCI_TD_R); 1392 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 1393 data->nexttd = tail; 1394 data->td.td_nexttd = htole32(tail->physaddr); 1395 data->td.td_be = htole32(le32toh(data->td.td_cbp) + 1396 xfer->length - 1); 1397 data->len = xfer->length; 1398 data->xfer = xfer; 1399 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1400 xfer->hcpriv = data; 1401 xfer->actlen = 0; 1402 1403 sed->ed.ed_tailp = htole32(tail->physaddr); 1404 opipe->tail.td = tail; 1405 } 1406 } 1407 1408 void 1409 ohci_device_bulk_done(xfer) 1410 usbd_xfer_handle xfer; 1411 { 1412 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1413 xfer, xfer->actlen)); 1414 1415 xfer->hcpriv = NULL; 1416 } 1417 1418 void 1419 ohci_rhsc(sc, xfer) 1420 ohci_softc_t *sc; 1421 usbd_xfer_handle xfer; 1422 { 1423 usbd_pipe_handle pipe; 1424 struct ohci_pipe *opipe; 1425 u_char *p; 1426 int i, m; 1427 int hstatus; 1428 1429 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1430 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1431 sc, xfer, hstatus)); 1432 1433 if (xfer == NULL) { 1434 /* Just ignore the change. */ 1435 return; 1436 } 1437 1438 pipe = xfer->pipe; 1439 opipe = (struct ohci_pipe *)pipe; 1440 1441 p = KERNADDR(&xfer->dmabuf); 1442 m = min(sc->sc_noport, xfer->length * 8 - 1); 1443 memset(p, 0, xfer->length); 1444 for (i = 1; i <= m; i++) { 1445 /* Pick out CHANGE bits from the status reg. */ 1446 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1447 p[i/8] |= 1 << (i%8); 1448 } 1449 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1450 xfer->actlen = xfer->length; 1451 xfer->status = USBD_NORMAL_COMPLETION; 1452 1453 usb_transfer_complete(xfer); 1454 } 1455 1456 void 1457 ohci_root_intr_done(xfer) 1458 usbd_xfer_handle xfer; 1459 { 1460 xfer->hcpriv = NULL; 1461 } 1462 1463 void 1464 ohci_root_ctrl_done(xfer) 1465 usbd_xfer_handle xfer; 1466 { 1467 xfer->hcpriv = NULL; 1468 } 1469 1470 /* 1471 * Wait here until controller claims to have an interrupt. 1472 * Then call ohci_intr and return. Use timeout to avoid waiting 1473 * too long. 1474 */ 1475 void 1476 ohci_waitintr(sc, xfer) 1477 ohci_softc_t *sc; 1478 usbd_xfer_handle xfer; 1479 { 1480 int timo = xfer->timeout; 1481 int usecs; 1482 u_int32_t intrs; 1483 1484 xfer->status = USBD_IN_PROGRESS; 1485 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1486 usb_delay_ms(&sc->sc_bus, 1); 1487 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1488 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1489 #ifdef OHCI_DEBUG 1490 if (ohcidebug > 15) 1491 ohci_dumpregs(sc); 1492 #endif 1493 if (intrs) { 1494 ohci_intr1(sc); 1495 if (xfer->status != USBD_IN_PROGRESS) 1496 return; 1497 } 1498 } 1499 1500 /* Timeout */ 1501 DPRINTF(("ohci_waitintr: timeout\n")); 1502 xfer->status = USBD_TIMEOUT; 1503 usb_transfer_complete(xfer); 1504 /* XXX should free TD */ 1505 } 1506 1507 void 1508 ohci_poll(bus) 1509 struct usbd_bus *bus; 1510 { 1511 ohci_softc_t *sc = (ohci_softc_t *)bus; 1512 1513 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1514 ohci_intr1(sc); 1515 } 1516 1517 usbd_status 1518 ohci_device_request(xfer) 1519 usbd_xfer_handle xfer; 1520 { 1521 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1522 usb_device_request_t *req = &xfer->request; 1523 usbd_device_handle dev = opipe->pipe.device; 1524 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1525 int addr = dev->address; 1526 ohci_soft_td_t *setup, *stat, *next, *tail; 1527 ohci_soft_ed_t *sed; 1528 int isread; 1529 int len; 1530 usbd_status err; 1531 int s; 1532 1533 isread = req->bmRequestType & UT_READ; 1534 len = UGETW(req->wLength); 1535 1536 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1537 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1538 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1539 UGETW(req->wIndex), len, addr, 1540 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1541 1542 setup = opipe->tail.td; 1543 stat = ohci_alloc_std(sc); 1544 if (stat == NULL) { 1545 err = USBD_NOMEM; 1546 goto bad1; 1547 } 1548 tail = ohci_alloc_std(sc); 1549 if (tail == NULL) { 1550 err = USBD_NOMEM; 1551 goto bad2; 1552 } 1553 tail->xfer = NULL; 1554 1555 sed = opipe->sed; 1556 opipe->u.ctl.length = len; 1557 1558 /* Update device address and length since they may have changed. */ 1559 /* XXX This only needs to be done once, but it's too early in open. */ 1560 /* XXXX Should not touch ED here! */ 1561 sed->ed.ed_flags = htole32( 1562 (le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1563 OHCI_ED_SET_FA(addr) | 1564 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1565 1566 next = stat; 1567 1568 /* Set up data transaction */ 1569 if (len != 0) { 1570 ohci_soft_td_t *std = stat; 1571 1572 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1573 std, &stat); 1574 stat = stat->nexttd; /* point at free TD */ 1575 if (err) 1576 goto bad3; 1577 /* Start toggle at 1 and then use the carried toggle. */ 1578 std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK); 1579 std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1); 1580 } 1581 1582 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1583 1584 setup->td.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1585 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1586 setup->td.td_cbp = htole32(DMAADDR(&opipe->u.ctl.reqdma)); 1587 setup->nexttd = next; 1588 setup->td.td_nexttd = htole32(next->physaddr); 1589 setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1); 1590 setup->len = 0; 1591 setup->xfer = xfer; 1592 setup->flags = 0; 1593 xfer->hcpriv = setup; 1594 1595 stat->td.td_flags = htole32( 1596 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1597 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1598 stat->td.td_cbp = 0; 1599 stat->nexttd = tail; 1600 stat->td.td_nexttd = htole32(tail->physaddr); 1601 stat->td.td_be = 0; 1602 stat->flags = OHCI_CALL_DONE; 1603 stat->len = 0; 1604 stat->xfer = xfer; 1605 1606 #ifdef OHCI_DEBUG 1607 if (ohcidebug > 5) { 1608 DPRINTF(("ohci_device_request:\n")); 1609 ohci_dump_ed(sed); 1610 ohci_dump_tds(setup); 1611 } 1612 #endif 1613 1614 /* Insert ED in schedule */ 1615 s = splusb(); 1616 sed->ed.ed_tailp = htole32(tail->physaddr); 1617 opipe->tail.td = tail; 1618 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1619 if (xfer->timeout && !sc->sc_bus.use_polling) { 1620 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1621 ohci_timeout, xfer); 1622 } 1623 splx(s); 1624 1625 #if 0 1626 if (ohcidebug > 10) { 1627 delay(10000); 1628 DPRINTF(("ohci_device_request: status=%x\n", 1629 OREAD4(sc, OHCI_COMMAND_STATUS))); 1630 ohci_dump_ed(sed); 1631 ohci_dump_tds(setup); 1632 } 1633 #endif 1634 1635 return (USBD_NORMAL_COMPLETION); 1636 1637 bad3: 1638 ohci_free_std(sc, tail); 1639 bad2: 1640 ohci_free_std(sc, stat); 1641 bad1: 1642 return (err); 1643 } 1644 1645 /* 1646 * Add an ED to the schedule. Called at splusb(). 1647 */ 1648 void 1649 ohci_add_ed(sed, head) 1650 ohci_soft_ed_t *sed; 1651 ohci_soft_ed_t *head; 1652 { 1653 SPLUSBCHECK; 1654 sed->next = head->next; 1655 sed->ed.ed_nexted = head->ed.ed_nexted; 1656 head->next = sed; 1657 head->ed.ed_nexted = htole32(sed->physaddr); 1658 } 1659 1660 /* 1661 * Remove an ED from the schedule. Called at splusb(). 1662 */ 1663 void 1664 ohci_rem_ed(sed, head) 1665 ohci_soft_ed_t *sed; 1666 ohci_soft_ed_t *head; 1667 { 1668 ohci_soft_ed_t *p; 1669 1670 SPLUSBCHECK; 1671 1672 /* XXX */ 1673 for (p = head; p == NULL && p->next != sed; p = p->next) 1674 ; 1675 if (p == NULL) 1676 panic("ohci_rem_ed: ED not found\n"); 1677 p->next = sed->next; 1678 p->ed.ed_nexted = sed->ed.ed_nexted; 1679 } 1680 1681 /* 1682 * When a transfer is completed the TD is added to the done queue by 1683 * the host controller. This queue is the processed by software. 1684 * Unfortunately the queue contains the physical address of the TD 1685 * and we have no simple way to translate this back to a kernel address. 1686 * To make the translation possible (and fast) we use a hash table of 1687 * TDs currently in the schedule. The physical address is used as the 1688 * hash value. 1689 */ 1690 1691 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1692 /* Called at splusb() */ 1693 void 1694 ohci_hash_add_td(sc, std) 1695 ohci_softc_t *sc; 1696 ohci_soft_td_t *std; 1697 { 1698 int h = HASH(std->physaddr); 1699 1700 SPLUSBCHECK; 1701 1702 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1703 } 1704 1705 /* Called at splusb() */ 1706 void 1707 ohci_hash_rem_td(sc, std) 1708 ohci_softc_t *sc; 1709 ohci_soft_td_t *std; 1710 { 1711 SPLUSBCHECK; 1712 1713 LIST_REMOVE(std, hnext); 1714 } 1715 1716 ohci_soft_td_t * 1717 ohci_hash_find_td(sc, a) 1718 ohci_softc_t *sc; 1719 ohci_physaddr_t a; 1720 { 1721 int h = HASH(a); 1722 ohci_soft_td_t *std; 1723 1724 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1725 std != NULL; 1726 std = LIST_NEXT(std, hnext)) 1727 if (std->physaddr == a) 1728 return (std); 1729 return (NULL); 1730 } 1731 1732 /* Called at splusb() */ 1733 void 1734 ohci_hash_add_itd(sc, sitd) 1735 ohci_softc_t *sc; 1736 ohci_soft_itd_t *sitd; 1737 { 1738 int h = HASH(sitd->physaddr); 1739 1740 SPLUSBCHECK; 1741 1742 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1743 sitd, (u_long)sitd->physaddr)); 1744 1745 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1746 } 1747 1748 /* Called at splusb() */ 1749 void 1750 ohci_hash_rem_itd(sc, sitd) 1751 ohci_softc_t *sc; 1752 ohci_soft_itd_t *sitd; 1753 { 1754 SPLUSBCHECK; 1755 1756 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1757 sitd, (u_long)sitd->physaddr)); 1758 1759 LIST_REMOVE(sitd, hnext); 1760 } 1761 1762 ohci_soft_itd_t * 1763 ohci_hash_find_itd(sc, a) 1764 ohci_softc_t *sc; 1765 ohci_physaddr_t a; 1766 { 1767 int h = HASH(a); 1768 ohci_soft_itd_t *sitd; 1769 1770 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1771 sitd != NULL; 1772 sitd = LIST_NEXT(sitd, hnext)) 1773 if (sitd->physaddr == a) 1774 return (sitd); 1775 return (NULL); 1776 } 1777 1778 void 1779 ohci_timeout(addr) 1780 void *addr; 1781 { 1782 usbd_xfer_handle xfer = addr; 1783 int s; 1784 1785 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1786 1787 s = splusb(); 1788 xfer->device->bus->intr_context++; 1789 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1790 xfer->device->bus->intr_context--; 1791 splx(s); 1792 } 1793 1794 #ifdef OHCI_DEBUG 1795 void 1796 ohci_dump_tds(std) 1797 ohci_soft_td_t *std; 1798 { 1799 for (; std; std = std->nexttd) 1800 ohci_dump_td(std); 1801 } 1802 1803 void 1804 ohci_dump_td(std) 1805 ohci_soft_td_t *std; 1806 { 1807 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1808 "nexttd=0x%08lx be=0x%08lx\n", 1809 std, (u_long)std->physaddr, 1810 (int)le32toh(std->td.td_flags), 1811 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1812 OHCI_TD_GET_DI(le32toh(std->td.td_flags)), 1813 OHCI_TD_GET_EC(le32toh(std->td.td_flags)), 1814 OHCI_TD_GET_CC(le32toh(std->td.td_flags)), 1815 (u_long)le32toh(std->td.td_cbp), 1816 (u_long)le32toh(std->td.td_nexttd), 1817 (u_long)le32toh(std->td.td_be))); 1818 } 1819 1820 void 1821 ohci_dump_itd(sitd) 1822 ohci_soft_itd_t *sitd; 1823 { 1824 int i; 1825 1826 DPRINTF(("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1827 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1828 sitd, (u_long)sitd->physaddr, 1829 OHCI_ITD_GET_SF(le32toh(sitd->itd.itd_flags)), 1830 OHCI_ITD_GET_DI(le32toh(sitd->itd.itd_flags)), 1831 OHCI_ITD_GET_FC(le32toh(sitd->itd.itd_flags)), 1832 OHCI_ITD_GET_CC(le32toh(sitd->itd.itd_flags)), 1833 (u_long)le32toh(sitd->itd.itd_bp0), 1834 (u_long)le32toh(sitd->itd.itd_nextitd), 1835 (u_long)le32toh(sitd->itd.itd_be))); 1836 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1837 DPRINTF(("offs[%d]=0x%04x ", i, 1838 (u_int)le16toh(sitd->itd.itd_offset[i]))); 1839 DPRINTF(("\n")); 1840 } 1841 1842 void 1843 ohci_dump_itds(sitd) 1844 ohci_soft_itd_t *sitd; 1845 { 1846 for (; sitd; sitd = sitd->nextitd) 1847 ohci_dump_itd(sitd); 1848 } 1849 1850 void 1851 ohci_dump_ed(sed) 1852 ohci_soft_ed_t *sed; 1853 { 1854 DPRINTF(("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1855 "headflags=%b headp=0x%08lx nexted=0x%08lx\n", 1856 sed, (u_long)sed->physaddr, 1857 OHCI_ED_GET_FA(le32toh(sed->ed.ed_flags)), 1858 OHCI_ED_GET_EN(le32toh(sed->ed.ed_flags)), 1859 OHCI_ED_GET_MAXP(le32toh(sed->ed.ed_flags)), 1860 (int)le32toh(sed->ed.ed_flags), 1861 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1862 (u_long)le32toh(sed->ed.ed_tailp), 1863 (u_long)le32toh(sed->ed.ed_headp), 1864 "\20\1HALT\2CARRY", 1865 (u_long)le32toh(sed->ed.ed_headp), 1866 (u_long)le32toh(sed->ed.ed_nexted))); 1867 } 1868 #endif 1869 1870 usbd_status 1871 ohci_open(pipe) 1872 usbd_pipe_handle pipe; 1873 { 1874 usbd_device_handle dev = pipe->device; 1875 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1876 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1877 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1878 u_int8_t addr = dev->address; 1879 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1880 ohci_soft_ed_t *sed; 1881 ohci_soft_td_t *std; 1882 ohci_soft_itd_t *sitd; 1883 ohci_physaddr_t tdphys; 1884 u_int32_t fmt; 1885 usbd_status err; 1886 int s; 1887 int ival; 1888 1889 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1890 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1891 1892 if (addr == sc->sc_addr) { 1893 switch (ed->bEndpointAddress) { 1894 case USB_CONTROL_ENDPOINT: 1895 pipe->methods = &ohci_root_ctrl_methods; 1896 break; 1897 case UE_DIR_IN | OHCI_INTR_ENDPT: 1898 pipe->methods = &ohci_root_intr_methods; 1899 break; 1900 default: 1901 return (USBD_INVAL); 1902 } 1903 } else { 1904 sed = ohci_alloc_sed(sc); 1905 if (sed == NULL) 1906 goto bad0; 1907 opipe->sed = sed; 1908 if (xfertype == UE_ISOCHRONOUS) { 1909 sitd = ohci_alloc_sitd(sc); 1910 if (sitd == NULL) { 1911 ohci_free_sitd(sc, sitd); 1912 goto bad1; 1913 } 1914 opipe->tail.itd = sitd; 1915 tdphys = sitd->physaddr; 1916 fmt = OHCI_ED_FORMAT_ISO; 1917 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 1918 fmt |= OHCI_ED_DIR_IN; 1919 else 1920 fmt |= OHCI_ED_DIR_OUT; 1921 } else { 1922 std = ohci_alloc_std(sc); 1923 if (std == NULL) { 1924 ohci_free_std(sc, std); 1925 goto bad1; 1926 } 1927 opipe->tail.td = std; 1928 tdphys = std->physaddr; 1929 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 1930 } 1931 sed->ed.ed_flags = htole32( 1932 OHCI_ED_SET_FA(addr) | 1933 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1934 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1935 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1936 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 1937 1938 switch (xfertype) { 1939 case UE_CONTROL: 1940 pipe->methods = &ohci_device_ctrl_methods; 1941 err = usb_allocmem(&sc->sc_bus, 1942 sizeof(usb_device_request_t), 1943 0, &opipe->u.ctl.reqdma); 1944 if (err) 1945 goto bad; 1946 s = splusb(); 1947 ohci_add_ed(sed, sc->sc_ctrl_head); 1948 splx(s); 1949 break; 1950 case UE_INTERRUPT: 1951 pipe->methods = &ohci_device_intr_methods; 1952 ival = pipe->interval; 1953 if (ival == USBD_DEFAULT_INTERVAL) 1954 ival = ed->bInterval; 1955 return (ohci_device_setintr(sc, opipe, ival)); 1956 case UE_ISOCHRONOUS: 1957 pipe->methods = &ohci_device_isoc_methods; 1958 return (ohci_setup_isoc(pipe)); 1959 case UE_BULK: 1960 pipe->methods = &ohci_device_bulk_methods; 1961 s = splusb(); 1962 ohci_add_ed(sed, sc->sc_bulk_head); 1963 splx(s); 1964 break; 1965 } 1966 } 1967 return (USBD_NORMAL_COMPLETION); 1968 1969 bad: 1970 ohci_free_std(sc, std); 1971 bad1: 1972 ohci_free_sed(sc, sed); 1973 bad0: 1974 return (USBD_NOMEM); 1975 1976 } 1977 1978 /* 1979 * Close a reqular pipe. 1980 * Assumes that there are no pending transactions. 1981 */ 1982 void 1983 ohci_close_pipe(pipe, head) 1984 usbd_pipe_handle pipe; 1985 ohci_soft_ed_t *head; 1986 { 1987 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1988 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1989 ohci_soft_ed_t *sed = opipe->sed; 1990 int s; 1991 1992 s = splusb(); 1993 #ifdef DIAGNOSTIC 1994 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 1995 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 1996 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) { 1997 ohci_physaddr_t td = le32toh(sed->ed.ed_headp); 1998 ohci_soft_td_t *std; 1999 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 2000 std != NULL; 2001 std = LIST_NEXT(std, hnext)) 2002 if (std->physaddr == td) 2003 break; 2004 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 2005 "tl=0x%x pipe=%p, std=%p\n", sed, 2006 (int)le32toh(sed->ed.ed_headp), 2007 (int)le32toh(sed->ed.ed_tailp), 2008 pipe, std); 2009 usb_delay_ms(&sc->sc_bus, 2); 2010 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2011 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2012 printf("ohci_close_pipe: pipe still not empty\n"); 2013 } 2014 #endif 2015 ohci_rem_ed(sed, head); 2016 splx(s); 2017 ohci_free_sed(sc, opipe->sed); 2018 } 2019 2020 /* 2021 * Abort a device request. 2022 * If this routine is called at splusb() it guarantees that the request 2023 * will be removed from the hardware scheduling and that the callback 2024 * for it will be called with USBD_CANCELLED status. 2025 * It's impossible to guarantee that the requested transfer will not 2026 * have happened since the hardware runs concurrently. 2027 * If the transaction has already happened we rely on the ordinary 2028 * interrupt processing to process it. 2029 */ 2030 void 2031 ohci_abort_xfer(xfer, status) 2032 usbd_xfer_handle xfer; 2033 usbd_status status; 2034 { 2035 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2036 ohci_soft_ed_t *sed; 2037 2038 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 2039 2040 xfer->status = status; 2041 2042 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2043 2044 sed = opipe->sed; 2045 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2046 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 2047 2048 #if 1 2049 if (xfer->device->bus->intr_context) { 2050 /* We have no process context, so we can't use tsleep(). */ 2051 usb_callout(xfer->pipe->abort_handle, 2052 hz / USB_FRAMES_PER_SECOND, ohci_abort_xfer_end, xfer); 2053 } else { 2054 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 2055 KASSERT(intr_nesting_level == 0, 2056 ("ohci_abort_req in interrupt context")); 2057 #endif 2058 usb_delay_ms(opipe->pipe.device->bus, 1); 2059 ohci_abort_xfer_end(xfer); 2060 } 2061 #else 2062 delay(1000); 2063 ohci_abort_xfer_end(xfer); 2064 #endif 2065 } 2066 2067 void 2068 ohci_abort_xfer_end(v) 2069 void *v; 2070 { 2071 usbd_xfer_handle xfer = v; 2072 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2073 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2074 ohci_soft_ed_t *sed; 2075 ohci_soft_td_t *p, *n; 2076 int s; 2077 2078 s = splusb(); 2079 2080 p = xfer->hcpriv; 2081 #ifdef DIAGNOSTIC 2082 if (p == NULL) { 2083 printf("ohci_abort_xfer: hcpriv==0\n"); 2084 return; 2085 } 2086 #endif 2087 for (; p->xfer == xfer; p = n) { 2088 n = p->nexttd; 2089 ohci_free_std(sc, p); 2090 } 2091 2092 sed = opipe->sed; 2093 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 2094 (int)p->physaddr, (int)le32toh(sed->ed.ed_tailp))); 2095 sed->ed.ed_headp = htole32(p->physaddr); /* unlink TDs */ 2096 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 2097 2098 usb_transfer_complete(xfer); 2099 2100 splx(s); 2101 } 2102 2103 /* 2104 * Data structures and routines to emulate the root hub. 2105 */ 2106 Static usb_device_descriptor_t ohci_devd = { 2107 USB_DEVICE_DESCRIPTOR_SIZE, 2108 UDESC_DEVICE, /* type */ 2109 {0x00, 0x01}, /* USB version */ 2110 UDCLASS_HUB, /* class */ 2111 UDSUBCLASS_HUB, /* subclass */ 2112 0, /* protocol */ 2113 64, /* max packet */ 2114 {0},{0},{0x00,0x01}, /* device id */ 2115 1,2,0, /* string indicies */ 2116 1 /* # of configurations */ 2117 }; 2118 2119 Static usb_config_descriptor_t ohci_confd = { 2120 USB_CONFIG_DESCRIPTOR_SIZE, 2121 UDESC_CONFIG, 2122 {USB_CONFIG_DESCRIPTOR_SIZE + 2123 USB_INTERFACE_DESCRIPTOR_SIZE + 2124 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2125 1, 2126 1, 2127 0, 2128 UC_SELF_POWERED, 2129 0 /* max power */ 2130 }; 2131 2132 Static usb_interface_descriptor_t ohci_ifcd = { 2133 USB_INTERFACE_DESCRIPTOR_SIZE, 2134 UDESC_INTERFACE, 2135 0, 2136 0, 2137 1, 2138 UICLASS_HUB, 2139 UISUBCLASS_HUB, 2140 0, 2141 0 2142 }; 2143 2144 Static usb_endpoint_descriptor_t ohci_endpd = { 2145 USB_ENDPOINT_DESCRIPTOR_SIZE, 2146 UDESC_ENDPOINT, 2147 UE_DIR_IN | OHCI_INTR_ENDPT, 2148 UE_INTERRUPT, 2149 {8, 0}, /* max packet */ 2150 255 2151 }; 2152 2153 Static usb_hub_descriptor_t ohci_hubd = { 2154 USB_HUB_DESCRIPTOR_SIZE, 2155 UDESC_HUB, 2156 0, 2157 {0,0}, 2158 0, 2159 0, 2160 {0}, 2161 }; 2162 2163 Static int 2164 ohci_str(p, l, s) 2165 usb_string_descriptor_t *p; 2166 int l; 2167 char *s; 2168 { 2169 int i; 2170 2171 if (l == 0) 2172 return (0); 2173 p->bLength = 2 * strlen(s) + 2; 2174 if (l == 1) 2175 return (1); 2176 p->bDescriptorType = UDESC_STRING; 2177 l -= 2; 2178 for (i = 0; s[i] && l > 1; i++, l -= 2) 2179 USETW2(p->bString[i], 0, s[i]); 2180 return (2*i+2); 2181 } 2182 2183 /* 2184 * Simulate a hardware hub by handling all the necessary requests. 2185 */ 2186 Static usbd_status 2187 ohci_root_ctrl_transfer(xfer) 2188 usbd_xfer_handle xfer; 2189 { 2190 usbd_status err; 2191 2192 /* Insert last in queue. */ 2193 err = usb_insert_transfer(xfer); 2194 if (err) 2195 return (err); 2196 2197 /* Pipe isn't running, start first */ 2198 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2199 } 2200 2201 Static usbd_status 2202 ohci_root_ctrl_start(xfer) 2203 usbd_xfer_handle xfer; 2204 { 2205 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2206 usb_device_request_t *req; 2207 void *buf = NULL; 2208 int port, i; 2209 int s, len, value, index, l, totlen = 0; 2210 usb_port_status_t ps; 2211 usb_hub_descriptor_t hubd; 2212 usbd_status err; 2213 u_int32_t v; 2214 2215 if (sc->sc_dying) 2216 return (USBD_IOERROR); 2217 2218 #ifdef DIAGNOSTIC 2219 if (!(xfer->rqflags & URQ_REQUEST)) 2220 /* XXX panic */ 2221 return (USBD_INVAL); 2222 #endif 2223 req = &xfer->request; 2224 2225 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2226 req->bmRequestType, req->bRequest)); 2227 2228 len = UGETW(req->wLength); 2229 value = UGETW(req->wValue); 2230 index = UGETW(req->wIndex); 2231 2232 if (len != 0) 2233 buf = KERNADDR(&xfer->dmabuf); 2234 2235 #define C(x,y) ((x) | ((y) << 8)) 2236 switch(C(req->bRequest, req->bmRequestType)) { 2237 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2238 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2239 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2240 /* 2241 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2242 * for the integrated root hub. 2243 */ 2244 break; 2245 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2246 if (len > 0) { 2247 *(u_int8_t *)buf = sc->sc_conf; 2248 totlen = 1; 2249 } 2250 break; 2251 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2252 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2253 switch(value >> 8) { 2254 case UDESC_DEVICE: 2255 if ((value & 0xff) != 0) { 2256 err = USBD_IOERROR; 2257 goto ret; 2258 } 2259 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2260 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2261 memcpy(buf, &ohci_devd, l); 2262 break; 2263 case UDESC_CONFIG: 2264 if ((value & 0xff) != 0) { 2265 err = USBD_IOERROR; 2266 goto ret; 2267 } 2268 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2269 memcpy(buf, &ohci_confd, l); 2270 buf = (char *)buf + l; 2271 len -= l; 2272 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2273 totlen += l; 2274 memcpy(buf, &ohci_ifcd, l); 2275 buf = (char *)buf + l; 2276 len -= l; 2277 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2278 totlen += l; 2279 memcpy(buf, &ohci_endpd, l); 2280 break; 2281 case UDESC_STRING: 2282 if (len == 0) 2283 break; 2284 *(u_int8_t *)buf = 0; 2285 totlen = 1; 2286 switch (value & 0xff) { 2287 case 1: /* Vendor */ 2288 totlen = ohci_str(buf, len, sc->sc_vendor); 2289 break; 2290 case 2: /* Product */ 2291 totlen = ohci_str(buf, len, "OHCI root hub"); 2292 break; 2293 } 2294 break; 2295 default: 2296 err = USBD_IOERROR; 2297 goto ret; 2298 } 2299 break; 2300 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2301 if (len > 0) { 2302 *(u_int8_t *)buf = 0; 2303 totlen = 1; 2304 } 2305 break; 2306 case C(UR_GET_STATUS, UT_READ_DEVICE): 2307 if (len > 1) { 2308 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2309 totlen = 2; 2310 } 2311 break; 2312 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2313 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2314 if (len > 1) { 2315 USETW(((usb_status_t *)buf)->wStatus, 0); 2316 totlen = 2; 2317 } 2318 break; 2319 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2320 if (value >= USB_MAX_DEVICES) { 2321 err = USBD_IOERROR; 2322 goto ret; 2323 } 2324 sc->sc_addr = value; 2325 break; 2326 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2327 if (value != 0 && value != 1) { 2328 err = USBD_IOERROR; 2329 goto ret; 2330 } 2331 sc->sc_conf = value; 2332 break; 2333 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2334 break; 2335 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2336 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2337 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2338 err = USBD_IOERROR; 2339 goto ret; 2340 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2341 break; 2342 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2343 break; 2344 /* Hub requests */ 2345 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2346 break; 2347 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2348 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2349 "port=%d feature=%d\n", 2350 index, value)); 2351 if (index < 1 || index > sc->sc_noport) { 2352 err = USBD_IOERROR; 2353 goto ret; 2354 } 2355 port = OHCI_RH_PORT_STATUS(index); 2356 switch(value) { 2357 case UHF_PORT_ENABLE: 2358 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2359 break; 2360 case UHF_PORT_SUSPEND: 2361 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2362 break; 2363 case UHF_PORT_POWER: 2364 /* Yes, writing to the LOW_SPEED bit clears power. */ 2365 OWRITE4(sc, port, UPS_LOW_SPEED); 2366 break; 2367 case UHF_C_PORT_CONNECTION: 2368 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2369 break; 2370 case UHF_C_PORT_ENABLE: 2371 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2372 break; 2373 case UHF_C_PORT_SUSPEND: 2374 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2375 break; 2376 case UHF_C_PORT_OVER_CURRENT: 2377 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2378 break; 2379 case UHF_C_PORT_RESET: 2380 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2381 break; 2382 default: 2383 err = USBD_IOERROR; 2384 goto ret; 2385 } 2386 switch(value) { 2387 case UHF_C_PORT_CONNECTION: 2388 case UHF_C_PORT_ENABLE: 2389 case UHF_C_PORT_SUSPEND: 2390 case UHF_C_PORT_OVER_CURRENT: 2391 case UHF_C_PORT_RESET: 2392 /* Enable RHSC interrupt if condition is cleared. */ 2393 if ((OREAD4(sc, port) >> 16) == 0) 2394 ohci_rhsc_able(sc, 1); 2395 break; 2396 default: 2397 break; 2398 } 2399 break; 2400 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2401 if (value != 0) { 2402 err = USBD_IOERROR; 2403 goto ret; 2404 } 2405 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2406 hubd = ohci_hubd; 2407 hubd.bNbrPorts = sc->sc_noport; 2408 USETW(hubd.wHubCharacteristics, 2409 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2410 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2411 /* XXX overcurrent */ 2412 ); 2413 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2414 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2415 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2416 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2417 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2418 l = min(len, hubd.bDescLength); 2419 totlen = l; 2420 memcpy(buf, &hubd, l); 2421 break; 2422 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2423 if (len != 4) { 2424 err = USBD_IOERROR; 2425 goto ret; 2426 } 2427 memset(buf, 0, len); /* ? XXX */ 2428 totlen = len; 2429 break; 2430 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2431 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2432 index)); 2433 if (index < 1 || index > sc->sc_noport) { 2434 err = USBD_IOERROR; 2435 goto ret; 2436 } 2437 if (len != 4) { 2438 err = USBD_IOERROR; 2439 goto ret; 2440 } 2441 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2442 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2443 v)); 2444 USETW(ps.wPortStatus, v); 2445 USETW(ps.wPortChange, v >> 16); 2446 l = min(len, sizeof ps); 2447 memcpy(buf, &ps, l); 2448 totlen = l; 2449 break; 2450 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2451 err = USBD_IOERROR; 2452 goto ret; 2453 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2454 break; 2455 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2456 if (index < 1 || index > sc->sc_noport) { 2457 err = USBD_IOERROR; 2458 goto ret; 2459 } 2460 port = OHCI_RH_PORT_STATUS(index); 2461 switch(value) { 2462 case UHF_PORT_ENABLE: 2463 OWRITE4(sc, port, UPS_PORT_ENABLED); 2464 break; 2465 case UHF_PORT_SUSPEND: 2466 OWRITE4(sc, port, UPS_SUSPEND); 2467 break; 2468 case UHF_PORT_RESET: 2469 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2470 index)); 2471 OWRITE4(sc, port, UPS_RESET); 2472 for (i = 0; i < 10; i++) { 2473 usb_delay_ms(&sc->sc_bus, 10); 2474 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2475 break; 2476 } 2477 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2478 index, OREAD4(sc, port))); 2479 break; 2480 case UHF_PORT_POWER: 2481 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2482 "%d\n", index)); 2483 OWRITE4(sc, port, UPS_PORT_POWER); 2484 break; 2485 default: 2486 err = USBD_IOERROR; 2487 goto ret; 2488 } 2489 break; 2490 default: 2491 err = USBD_IOERROR; 2492 goto ret; 2493 } 2494 xfer->actlen = totlen; 2495 err = USBD_NORMAL_COMPLETION; 2496 ret: 2497 xfer->status = err; 2498 s = splusb(); 2499 usb_transfer_complete(xfer); 2500 splx(s); 2501 return (USBD_IN_PROGRESS); 2502 } 2503 2504 /* Abort a root control request. */ 2505 Static void 2506 ohci_root_ctrl_abort(xfer) 2507 usbd_xfer_handle xfer; 2508 { 2509 /* Nothing to do, all transfers are synchronous. */ 2510 } 2511 2512 /* Close the root pipe. */ 2513 Static void 2514 ohci_root_ctrl_close(pipe) 2515 usbd_pipe_handle pipe; 2516 { 2517 DPRINTF(("ohci_root_ctrl_close\n")); 2518 /* Nothing to do. */ 2519 } 2520 2521 Static usbd_status 2522 ohci_root_intr_transfer(xfer) 2523 usbd_xfer_handle xfer; 2524 { 2525 usbd_status err; 2526 2527 /* Insert last in queue. */ 2528 err = usb_insert_transfer(xfer); 2529 if (err) 2530 return (err); 2531 2532 /* Pipe isn't running, start first */ 2533 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2534 } 2535 2536 Static usbd_status 2537 ohci_root_intr_start(xfer) 2538 usbd_xfer_handle xfer; 2539 { 2540 usbd_pipe_handle pipe = xfer->pipe; 2541 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2542 2543 if (sc->sc_dying) 2544 return (USBD_IOERROR); 2545 2546 sc->sc_intrxfer = xfer; 2547 2548 return (USBD_IN_PROGRESS); 2549 } 2550 2551 /* Abort a root interrupt request. */ 2552 Static void 2553 ohci_root_intr_abort(xfer) 2554 usbd_xfer_handle xfer; 2555 { 2556 int s; 2557 2558 if (xfer->pipe->intrxfer == xfer) { 2559 DPRINTF(("ohci_root_intr_abort: remove\n")); 2560 xfer->pipe->intrxfer = NULL; 2561 } 2562 xfer->status = USBD_CANCELLED; 2563 s = splusb(); 2564 usb_transfer_complete(xfer); 2565 splx(s); 2566 } 2567 2568 /* Close the root pipe. */ 2569 Static void 2570 ohci_root_intr_close(pipe) 2571 usbd_pipe_handle pipe; 2572 { 2573 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2574 2575 DPRINTF(("ohci_root_intr_close\n")); 2576 2577 sc->sc_intrxfer = NULL; 2578 } 2579 2580 /************************/ 2581 2582 Static usbd_status 2583 ohci_device_ctrl_transfer(xfer) 2584 usbd_xfer_handle xfer; 2585 { 2586 usbd_status err; 2587 2588 /* Insert last in queue. */ 2589 err = usb_insert_transfer(xfer); 2590 if (err) 2591 return (err); 2592 2593 /* Pipe isn't running, start first */ 2594 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2595 } 2596 2597 Static usbd_status 2598 ohci_device_ctrl_start(xfer) 2599 usbd_xfer_handle xfer; 2600 { 2601 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2602 usbd_status err; 2603 2604 if (sc->sc_dying) 2605 return (USBD_IOERROR); 2606 2607 #ifdef DIAGNOSTIC 2608 if (!(xfer->rqflags & URQ_REQUEST)) { 2609 /* XXX panic */ 2610 printf("ohci_device_ctrl_transfer: not a request\n"); 2611 return (USBD_INVAL); 2612 } 2613 #endif 2614 2615 err = ohci_device_request(xfer); 2616 if (err) 2617 return (err); 2618 2619 if (sc->sc_bus.use_polling) 2620 ohci_waitintr(sc, xfer); 2621 return (USBD_IN_PROGRESS); 2622 } 2623 2624 /* Abort a device control request. */ 2625 Static void 2626 ohci_device_ctrl_abort(xfer) 2627 usbd_xfer_handle xfer; 2628 { 2629 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2630 ohci_abort_xfer(xfer, USBD_CANCELLED); 2631 } 2632 2633 /* Close a device control pipe. */ 2634 Static void 2635 ohci_device_ctrl_close(pipe) 2636 usbd_pipe_handle pipe; 2637 { 2638 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2639 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2640 2641 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2642 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2643 ohci_free_std(sc, opipe->tail.td); 2644 } 2645 2646 /************************/ 2647 2648 Static void 2649 ohci_device_clear_toggle(pipe) 2650 usbd_pipe_handle pipe; 2651 { 2652 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2653 2654 opipe->sed->ed.ed_headp &= htole32(~OHCI_TOGGLECARRY); 2655 } 2656 2657 Static void 2658 ohci_noop(pipe) 2659 usbd_pipe_handle pipe; 2660 { 2661 } 2662 2663 Static usbd_status 2664 ohci_device_bulk_transfer(xfer) 2665 usbd_xfer_handle xfer; 2666 { 2667 usbd_status err; 2668 2669 /* Insert last in queue. */ 2670 err = usb_insert_transfer(xfer); 2671 if (err) 2672 return (err); 2673 2674 /* Pipe isn't running, start first */ 2675 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2676 } 2677 2678 Static usbd_status 2679 ohci_device_bulk_start(xfer) 2680 usbd_xfer_handle xfer; 2681 { 2682 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2683 usbd_device_handle dev = opipe->pipe.device; 2684 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2685 int addr = dev->address; 2686 ohci_soft_td_t *data, *tail, *tdp; 2687 ohci_soft_ed_t *sed; 2688 int s, len, isread, endpt; 2689 usbd_status err; 2690 2691 if (sc->sc_dying) 2692 return (USBD_IOERROR); 2693 2694 #ifdef DIAGNOSTIC 2695 if (xfer->rqflags & URQ_REQUEST) { 2696 /* XXX panic */ 2697 printf("ohci_device_bulk_start: a request\n"); 2698 return (USBD_INVAL); 2699 } 2700 #endif 2701 2702 len = xfer->length; 2703 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2704 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2705 sed = opipe->sed; 2706 2707 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2708 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2709 endpt)); 2710 2711 opipe->u.bulk.isread = isread; 2712 opipe->u.bulk.length = len; 2713 2714 /* Update device address */ 2715 sed->ed.ed_flags = htole32( 2716 (le32toh(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2717 OHCI_ED_SET_FA(addr)); 2718 2719 /* Allocate a chain of new TDs (including a new tail). */ 2720 data = opipe->tail.td; 2721 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2722 data, &tail); 2723 /* We want interrupt at the end of the transfer. */ 2724 tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK); 2725 tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1)); 2726 tail->flags |= OHCI_CALL_DONE; 2727 tail = tail->nexttd; /* point at sentinel */ 2728 if (err) 2729 return (err); 2730 2731 tail->xfer = NULL; 2732 xfer->hcpriv = data; 2733 2734 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2735 "td_cbp=0x%08x td_be=0x%08x\n", 2736 (int)le32toh(sed->ed.ed_flags), 2737 (int)le32toh(data->td.td_flags), 2738 (int)le32toh(data->td.td_cbp), 2739 (int)le32toh(data->td.td_be))); 2740 2741 #ifdef OHCI_DEBUG 2742 if (ohcidebug > 5) { 2743 ohci_dump_ed(sed); 2744 ohci_dump_tds(data); 2745 } 2746 #endif 2747 2748 /* Insert ED in schedule */ 2749 s = splusb(); 2750 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2751 tdp->xfer = xfer; 2752 } 2753 sed->ed.ed_tailp = htole32(tail->physaddr); 2754 opipe->tail.td = tail; 2755 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2756 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2757 if (xfer->timeout && !sc->sc_bus.use_polling) { 2758 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2759 ohci_timeout, xfer); 2760 } 2761 2762 #if 0 2763 /* This goes wrong if we are too slow. */ 2764 if (ohcidebug > 10) { 2765 delay(10000); 2766 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2767 OREAD4(sc, OHCI_COMMAND_STATUS))); 2768 ohci_dump_ed(sed); 2769 ohci_dump_tds(data); 2770 } 2771 #endif 2772 2773 splx(s); 2774 2775 return (USBD_IN_PROGRESS); 2776 } 2777 2778 Static void 2779 ohci_device_bulk_abort(xfer) 2780 usbd_xfer_handle xfer; 2781 { 2782 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2783 ohci_abort_xfer(xfer, USBD_CANCELLED); 2784 } 2785 2786 /* 2787 * Close a device bulk pipe. 2788 */ 2789 Static void 2790 ohci_device_bulk_close(pipe) 2791 usbd_pipe_handle pipe; 2792 { 2793 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2794 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2795 2796 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2797 ohci_close_pipe(pipe, sc->sc_bulk_head); 2798 ohci_free_std(sc, opipe->tail.td); 2799 } 2800 2801 /************************/ 2802 2803 Static usbd_status 2804 ohci_device_intr_transfer(xfer) 2805 usbd_xfer_handle xfer; 2806 { 2807 usbd_status err; 2808 2809 /* Insert last in queue. */ 2810 err = usb_insert_transfer(xfer); 2811 if (err) 2812 return (err); 2813 2814 /* Pipe isn't running, start first */ 2815 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2816 } 2817 2818 Static usbd_status 2819 ohci_device_intr_start(xfer) 2820 usbd_xfer_handle xfer; 2821 { 2822 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2823 usbd_device_handle dev = opipe->pipe.device; 2824 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2825 ohci_soft_ed_t *sed = opipe->sed; 2826 ohci_soft_td_t *data, *tail; 2827 int len; 2828 int s; 2829 2830 if (sc->sc_dying) 2831 return (USBD_IOERROR); 2832 2833 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2834 "flags=%d priv=%p\n", 2835 xfer, xfer->length, xfer->flags, xfer->priv)); 2836 2837 #ifdef DIAGNOSTIC 2838 if (xfer->rqflags & URQ_REQUEST) 2839 panic("ohci_device_intr_transfer: a request\n"); 2840 #endif 2841 2842 len = xfer->length; 2843 2844 data = opipe->tail.td; 2845 tail = ohci_alloc_std(sc); 2846 if (tail == NULL) 2847 return (USBD_NOMEM); 2848 tail->xfer = NULL; 2849 2850 data->td.td_flags = htole32( 2851 OHCI_TD_IN | OHCI_TD_NOCC | 2852 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2853 if (xfer->flags & USBD_SHORT_XFER_OK) 2854 data->td.td_flags |= htole32(OHCI_TD_R); 2855 data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf)); 2856 data->nexttd = tail; 2857 data->td.td_nexttd = htole32(tail->physaddr); 2858 data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1); 2859 data->len = len; 2860 data->xfer = xfer; 2861 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2862 xfer->hcpriv = data; 2863 2864 #ifdef OHCI_DEBUG 2865 if (ohcidebug > 5) { 2866 DPRINTF(("ohci_device_intr_transfer:\n")); 2867 ohci_dump_ed(sed); 2868 ohci_dump_tds(data); 2869 } 2870 #endif 2871 2872 /* Insert ED in schedule */ 2873 s = splusb(); 2874 sed->ed.ed_tailp = htole32(tail->physaddr); 2875 opipe->tail.td = tail; 2876 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); 2877 2878 #if 0 2879 /* 2880 * This goes horribly wrong, printing thousands of descriptors, 2881 * because false references are followed due to the fact that the 2882 * TD is gone. 2883 */ 2884 if (ohcidebug > 5) { 2885 usb_delay_ms(&sc->sc_bus, 5); 2886 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2887 OREAD4(sc, OHCI_COMMAND_STATUS))); 2888 ohci_dump_ed(sed); 2889 ohci_dump_tds(data); 2890 } 2891 #endif 2892 splx(s); 2893 2894 return (USBD_IN_PROGRESS); 2895 } 2896 2897 /* Abort a device control request. */ 2898 Static void 2899 ohci_device_intr_abort(xfer) 2900 usbd_xfer_handle xfer; 2901 { 2902 if (xfer->pipe->intrxfer == xfer) { 2903 DPRINTF(("ohci_device_intr_abort: remove\n")); 2904 xfer->pipe->intrxfer = NULL; 2905 } 2906 ohci_abort_xfer(xfer, USBD_CANCELLED); 2907 } 2908 2909 /* Close a device interrupt pipe. */ 2910 Static void 2911 ohci_device_intr_close(pipe) 2912 usbd_pipe_handle pipe; 2913 { 2914 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2915 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2916 int nslots = opipe->u.intr.nslots; 2917 int pos = opipe->u.intr.pos; 2918 int j; 2919 ohci_soft_ed_t *p, *sed = opipe->sed; 2920 int s; 2921 2922 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2923 pipe, nslots, pos)); 2924 s = splusb(); 2925 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); 2926 if ((le32toh(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2927 (le32toh(sed->ed.ed_headp) & OHCI_HEADMASK)) 2928 usb_delay_ms(&sc->sc_bus, 2); 2929 2930 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2931 ; 2932 #ifdef DIAGNOSTIC 2933 if (p == NULL) 2934 panic("ohci_device_intr_close: ED not found\n"); 2935 #endif 2936 p->next = sed->next; 2937 p->ed.ed_nexted = sed->ed.ed_nexted; 2938 splx(s); 2939 2940 for (j = 0; j < nslots; j++) 2941 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2942 2943 ohci_free_std(sc, opipe->tail.td); 2944 ohci_free_sed(sc, opipe->sed); 2945 } 2946 2947 Static usbd_status 2948 ohci_device_setintr(sc, opipe, ival) 2949 ohci_softc_t *sc; 2950 struct ohci_pipe *opipe; 2951 int ival; 2952 { 2953 int i, j, s, best; 2954 u_int npoll, slow, shigh, nslots; 2955 u_int bestbw, bw; 2956 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2957 2958 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2959 if (ival == 0) { 2960 printf("ohci_setintr: 0 interval\n"); 2961 return (USBD_INVAL); 2962 } 2963 2964 npoll = OHCI_NO_INTRS; 2965 while (npoll > ival) 2966 npoll /= 2; 2967 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2968 2969 /* 2970 * We now know which level in the tree the ED must go into. 2971 * Figure out which slot has most bandwidth left over. 2972 * Slots to examine: 2973 * npoll 2974 * 1 0 2975 * 2 1 2 2976 * 4 3 4 5 6 2977 * 8 7 8 9 10 11 12 13 14 2978 * N (N-1) .. (N-1+N-1) 2979 */ 2980 slow = npoll-1; 2981 shigh = slow + npoll; 2982 nslots = OHCI_NO_INTRS / npoll; 2983 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2984 bw = 0; 2985 for (j = 0; j < nslots; j++) 2986 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2987 if (bw < bestbw) { 2988 best = i; 2989 bestbw = bw; 2990 } 2991 } 2992 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2993 best, slow, shigh, bestbw)); 2994 2995 s = splusb(); 2996 hsed = sc->sc_eds[best]; 2997 sed->next = hsed->next; 2998 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2999 hsed->next = sed; 3000 hsed->ed.ed_nexted = htole32(sed->physaddr); 3001 splx(s); 3002 3003 for (j = 0; j < nslots; j++) 3004 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 3005 opipe->u.intr.nslots = nslots; 3006 opipe->u.intr.pos = best; 3007 3008 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 3009 return (USBD_NORMAL_COMPLETION); 3010 } 3011 3012 /***********************/ 3013 3014 usbd_status 3015 ohci_device_isoc_transfer(xfer) 3016 usbd_xfer_handle xfer; 3017 { 3018 usbd_status err; 3019 3020 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3021 3022 /* Put it on our queue, */ 3023 err = usb_insert_transfer(xfer); 3024 3025 /* bail out on error, */ 3026 if (err && err != USBD_IN_PROGRESS) 3027 return (err); 3028 3029 /* XXX should check inuse here */ 3030 3031 /* insert into schedule, */ 3032 ohci_device_isoc_enter(xfer); 3033 3034 /* and start if the pipe wasn't running */ 3035 if (!err) 3036 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3037 3038 return (err); 3039 } 3040 3041 void 3042 ohci_device_isoc_enter(xfer) 3043 usbd_xfer_handle xfer; 3044 { 3045 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3046 usbd_device_handle dev = opipe->pipe.device; 3047 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3048 ohci_soft_ed_t *sed = opipe->sed; 3049 struct iso *iso = &opipe->u.iso; 3050 ohci_soft_itd_t *sitd, *nsitd; 3051 ohci_physaddr_t buf, offs, noffs, bp0; 3052 int i, ncur, nframes; 3053 int s; 3054 3055 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3056 "nframes=%d\n", 3057 iso->inuse, iso->next, xfer, xfer->nframes)); 3058 3059 if (sc->sc_dying) 3060 return; 3061 3062 if (iso->next == -1) { 3063 /* Not in use yet, schedule it a few frames ahead. */ 3064 iso->next = le32toh(sc->sc_hcca->hcca_frame_number) + 5; 3065 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3066 iso->next)); 3067 } 3068 3069 sitd = opipe->tail.itd; 3070 buf = DMAADDR(&xfer->dmabuf); 3071 bp0 = OHCI_PAGE(buf); 3072 offs = OHCI_PAGE_OFFSET(buf); 3073 nframes = xfer->nframes; 3074 xfer->hcpriv = sitd; 3075 for (i = ncur = 0; i < nframes; i++, ncur++) { 3076 noffs = offs + xfer->frlengths[i]; 3077 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3078 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3079 3080 /* Allocate next ITD */ 3081 nsitd = ohci_alloc_sitd(sc); 3082 if (nsitd == NULL) { 3083 /* XXX what now? */ 3084 printf("%s: isoc TD alloc failed\n", 3085 USBDEVNAME(sc->sc_bus.bdev)); 3086 return; 3087 } 3088 3089 /* Fill current ITD */ 3090 sitd->itd.itd_flags = htole32( 3091 OHCI_ITD_NOCC | 3092 OHCI_ITD_SET_SF(iso->next) | 3093 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3094 OHCI_ITD_SET_FC(ncur)); 3095 sitd->itd.itd_bp0 = htole32(bp0); 3096 sitd->nextitd = nsitd; 3097 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3098 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3099 sitd->xfer = xfer; 3100 sitd->flags = 0; 3101 3102 sitd = nsitd; 3103 iso->next = iso->next + ncur; 3104 bp0 = OHCI_PAGE(buf + offs); 3105 ncur = 0; 3106 } 3107 sitd->itd.itd_offset[ncur] = htole16(OHCI_ITD_MK_OFFS(offs)); 3108 offs = noffs; 3109 } 3110 nsitd = ohci_alloc_sitd(sc); 3111 if (nsitd == NULL) { 3112 /* XXX what now? */ 3113 printf("%s: isoc TD alloc failed\n", 3114 USBDEVNAME(sc->sc_bus.bdev)); 3115 return; 3116 } 3117 /* Fixup last used ITD */ 3118 sitd->itd.itd_flags = htole32( 3119 OHCI_ITD_NOCC | 3120 OHCI_ITD_SET_SF(iso->next) | 3121 OHCI_ITD_SET_DI(0) | 3122 OHCI_ITD_SET_FC(ncur)); 3123 sitd->itd.itd_bp0 = htole32(bp0); 3124 sitd->nextitd = nsitd; 3125 sitd->itd.itd_nextitd = htole32(nsitd->physaddr); 3126 sitd->itd.itd_be = htole32(bp0 + offs - 1); 3127 sitd->xfer = xfer; 3128 sitd->flags = OHCI_CALL_DONE; 3129 3130 iso->next = iso->next + ncur; 3131 iso->inuse += nframes; 3132 3133 xfer->actlen = offs; /* XXX pretend we did it all */ 3134 3135 xfer->status = USBD_IN_PROGRESS; 3136 3137 #ifdef OHCI_DEBUG 3138 if (ohcidebug > 5) { 3139 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3140 le32toh(sc->sc_hcca->hcca_frame_number))); 3141 ohci_dump_itds(xfer->hcpriv); 3142 ohci_dump_ed(sed); 3143 } 3144 #endif 3145 3146 s = splusb(); 3147 opipe->tail.itd = nsitd; 3148 sed->ed.ed_tailp = htole32(nsitd->physaddr); 3149 splx(s); 3150 3151 #ifdef OHCI_DEBUG 3152 if (ohcidebug > 5) { 3153 delay(150000); 3154 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3155 le32toh(sc->sc_hcca->hcca_frame_number))); 3156 ohci_dump_itds(xfer->hcpriv); 3157 ohci_dump_ed(sed); 3158 } 3159 #endif 3160 } 3161 3162 usbd_status 3163 ohci_device_isoc_start(xfer) 3164 usbd_xfer_handle xfer; 3165 { 3166 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3167 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3168 3169 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3170 3171 if (sc->sc_dying) 3172 return (USBD_IOERROR); 3173 3174 #ifdef DIAGNOSTIC 3175 if (xfer->status != USBD_IN_PROGRESS) 3176 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 3177 #endif 3178 3179 /* XXX anything to do? */ 3180 3181 return (USBD_IN_PROGRESS); 3182 } 3183 3184 void 3185 ohci_device_isoc_abort(xfer) 3186 usbd_xfer_handle xfer; 3187 { 3188 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3189 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3190 ohci_soft_ed_t *sed; 3191 ohci_soft_itd_t *sitd; 3192 int s; 3193 3194 s = splusb(); 3195 3196 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3197 3198 /* Transfer is already done. */ 3199 if (xfer->status != USBD_NOT_STARTED && 3200 xfer->status != USBD_IN_PROGRESS) { 3201 splx(s); 3202 printf("ohci_device_isoc_abort: early return\n"); 3203 return; 3204 } 3205 3206 /* Give xfer the requested abort code. */ 3207 xfer->status = USBD_CANCELLED; 3208 3209 sed = opipe->sed; 3210 sed->ed.ed_flags |= htole32(OHCI_ED_SKIP); /* force hardware skip */ 3211 3212 sitd = xfer->hcpriv; 3213 #ifdef DIAGNOSTIC 3214 if (sitd == NULL) { 3215 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3216 return; 3217 } 3218 #endif 3219 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3220 #ifdef DIAGNOSTIC 3221 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3222 sitd->isdone = 1; 3223 #endif 3224 } 3225 3226 splx(s); 3227 3228 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3229 3230 s = splusb(); 3231 3232 /* Run callback. */ 3233 usb_transfer_complete(xfer); 3234 3235 sed->ed.ed_headp = htole32(sitd->physaddr); /* unlink TDs */ 3236 sed->ed.ed_flags &= htole32(~OHCI_ED_SKIP); /* remove hardware skip */ 3237 3238 splx(s); 3239 } 3240 3241 void 3242 ohci_device_isoc_done(xfer) 3243 usbd_xfer_handle xfer; 3244 { 3245 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3246 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3247 ohci_soft_itd_t *sitd, *nsitd; 3248 3249 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3250 3251 for (sitd = xfer->hcpriv; 3252 !(sitd->flags & OHCI_CALL_DONE); 3253 sitd = nsitd) { 3254 nsitd = sitd->nextitd; 3255 DPRINTFN(1,("ohci_device_isoc_done: free sitd=%p\n", sitd)); 3256 ohci_free_sitd(sc, sitd); 3257 } 3258 ohci_free_sitd(sc, sitd); 3259 xfer->hcpriv = NULL; 3260 } 3261 3262 usbd_status 3263 ohci_setup_isoc(pipe) 3264 usbd_pipe_handle pipe; 3265 { 3266 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3267 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3268 struct iso *iso = &opipe->u.iso; 3269 int s; 3270 3271 iso->next = -1; 3272 iso->inuse = 0; 3273 3274 s = splusb(); 3275 ohci_add_ed(opipe->sed, sc->sc_isoc_head); 3276 splx(s); 3277 3278 return (USBD_NORMAL_COMPLETION); 3279 } 3280 3281 void 3282 ohci_device_isoc_close(pipe) 3283 usbd_pipe_handle pipe; 3284 { 3285 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3286 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3287 int s; 3288 3289 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3290 3291 s = splusb(); 3292 ohci_rem_ed(opipe->sed, sc->sc_isoc_head); 3293 splx(s); 3294 ohci_close_pipe(pipe, sc->sc_isoc_head); 3295 #ifdef DIAGNOSTIC 3296 opipe->tail.itd->isdone = 1; 3297 #endif 3298 ohci_free_sitd(sc, opipe->tail.itd); 3299 } 3300
Indexes created Tue Sep 23 07:09:52 GMT 2025