ohci.c revision 1.182.18.4
1 /* $NetBSD: ohci.c,v 1.182.18.4 2007/10/26 15:47:50 joerg 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, 2004, 2005 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * This code is derived from software contributed to The NetBSD Foundation 12 * by Charles M. Hannum. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the NetBSD 25 * Foundation, Inc. and its contributors. 26 * 4. Neither the name of The NetBSD Foundation nor the names of its 27 * contributors may be used to endorse or promote products derived 28 * from this software without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43 /* 44 * USB Open Host Controller driver. 45 * 46 * OHCI spec: http://www.compaq.com/productinfo/development/openhci.html 47 * USB spec: http://www.usb.org/developers/docs/usbspec.zip 48 */ 49 50 #include <sys/cdefs.h> 51 __KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.182.18.4 2007/10/26 15:47:50 joerg Exp $"); 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/malloc.h> 56 #if defined(__NetBSD__) || defined(__OpenBSD__) 57 #include <sys/kernel.h> 58 #include <sys/device.h> 59 #include <sys/select.h> 60 #include <uvm/uvm_extern.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #include <machine/bus_memio.h> 66 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 67 #include <sys/cpu.h> 68 #endif 69 #endif 70 #include <sys/proc.h> 71 #include <sys/queue.h> 72 73 #include <sys/bus.h> 74 #include <machine/endian.h> 75 76 #include <dev/usb/usb.h> 77 #include <dev/usb/usbdi.h> 78 #include <dev/usb/usbdivar.h> 79 #include <dev/usb/usb_mem.h> 80 #include <dev/usb/usb_quirks.h> 81 82 #include <dev/usb/ohcireg.h> 83 #include <dev/usb/ohcivar.h> 84 85 #if defined(__FreeBSD__) 86 #include <machine/clock.h> 87 88 #define delay(d) DELAY(d) 89 #endif 90 91 #if defined(__OpenBSD__) 92 struct cfdriver ohci_cd = { 93 NULL, "ohci", DV_DULL 94 }; 95 #endif 96 97 #ifdef OHCI_DEBUG 98 #define DPRINTF(x) if (ohcidebug) logprintf x 99 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 100 int ohcidebug = 0; 101 #ifndef __NetBSD__ 102 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 103 #endif 104 #else 105 #define DPRINTF(x) 106 #define DPRINTFN(n,x) 107 #endif 108 109 #if BYTE_ORDER == BIG_ENDIAN 110 #define SWAP_ENDIAN OHCI_LITTLE_ENDIAN 111 #else 112 #define SWAP_ENDIAN OHCI_BIG_ENDIAN 113 #endif 114 115 #define O16TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap16(val) : val) 116 #define O32TOH(val) (sc->sc_endian == SWAP_ENDIAN ? bswap32(val) : val) 117 #define HTOO16(val) O16TOH(val) 118 #define HTOO32(val) O32TOH(val) 119 120 struct ohci_pipe; 121 122 Static ohci_soft_ed_t *ohci_alloc_sed(ohci_softc_t *); 123 Static void ohci_free_sed(ohci_softc_t *, ohci_soft_ed_t *); 124 125 Static ohci_soft_td_t *ohci_alloc_std(ohci_softc_t *); 126 Static void ohci_free_std(ohci_softc_t *, ohci_soft_td_t *); 127 128 Static ohci_soft_itd_t *ohci_alloc_sitd(ohci_softc_t *); 129 Static void ohci_free_sitd(ohci_softc_t *,ohci_soft_itd_t *); 130 131 #if 0 132 Static void ohci_free_std_chain(ohci_softc_t *, ohci_soft_td_t *, 133 ohci_soft_td_t *); 134 #endif 135 Static usbd_status ohci_alloc_std_chain(struct ohci_pipe *, 136 ohci_softc_t *, int, int, usbd_xfer_handle, 137 ohci_soft_td_t *, ohci_soft_td_t **); 138 139 Static void ohci_shutdown(void *v); 140 Static usbd_status ohci_open(usbd_pipe_handle); 141 Static void ohci_poll(struct usbd_bus *); 142 Static void ohci_softintr(void *); 143 Static void ohci_waitintr(ohci_softc_t *, usbd_xfer_handle); 144 Static void ohci_rhsc(ohci_softc_t *, usbd_xfer_handle); 145 146 Static usbd_status ohci_device_request(usbd_xfer_handle xfer); 147 Static void ohci_add_ed(ohci_softc_t *, ohci_soft_ed_t *, 148 ohci_soft_ed_t *); 149 150 Static void ohci_rem_ed(ohci_soft_ed_t *, ohci_soft_ed_t *); 151 Static void ohci_hash_add_td(ohci_softc_t *, ohci_soft_td_t *); 152 Static void ohci_hash_rem_td(ohci_softc_t *, ohci_soft_td_t *); 153 Static ohci_soft_td_t *ohci_hash_find_td(ohci_softc_t *, ohci_physaddr_t); 154 Static void ohci_hash_add_itd(ohci_softc_t *, ohci_soft_itd_t *); 155 Static void ohci_hash_rem_itd(ohci_softc_t *, ohci_soft_itd_t *); 156 Static ohci_soft_itd_t *ohci_hash_find_itd(ohci_softc_t *, ohci_physaddr_t); 157 158 Static usbd_status ohci_setup_isoc(usbd_pipe_handle pipe); 159 Static void ohci_device_isoc_enter(usbd_xfer_handle); 160 161 Static usbd_status ohci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 162 Static void ohci_freem(struct usbd_bus *, usb_dma_t *); 163 164 Static usbd_xfer_handle ohci_allocx(struct usbd_bus *); 165 Static void ohci_freex(struct usbd_bus *, usbd_xfer_handle); 166 167 Static usbd_status ohci_root_ctrl_transfer(usbd_xfer_handle); 168 Static usbd_status ohci_root_ctrl_start(usbd_xfer_handle); 169 Static void ohci_root_ctrl_abort(usbd_xfer_handle); 170 Static void ohci_root_ctrl_close(usbd_pipe_handle); 171 Static void ohci_root_ctrl_done(usbd_xfer_handle); 172 173 Static usbd_status ohci_root_intr_transfer(usbd_xfer_handle); 174 Static usbd_status ohci_root_intr_start(usbd_xfer_handle); 175 Static void ohci_root_intr_abort(usbd_xfer_handle); 176 Static void ohci_root_intr_close(usbd_pipe_handle); 177 Static void ohci_root_intr_done(usbd_xfer_handle); 178 179 Static usbd_status ohci_device_ctrl_transfer(usbd_xfer_handle); 180 Static usbd_status ohci_device_ctrl_start(usbd_xfer_handle); 181 Static void ohci_device_ctrl_abort(usbd_xfer_handle); 182 Static void ohci_device_ctrl_close(usbd_pipe_handle); 183 Static void ohci_device_ctrl_done(usbd_xfer_handle); 184 185 Static usbd_status ohci_device_bulk_transfer(usbd_xfer_handle); 186 Static usbd_status ohci_device_bulk_start(usbd_xfer_handle); 187 Static void ohci_device_bulk_abort(usbd_xfer_handle); 188 Static void ohci_device_bulk_close(usbd_pipe_handle); 189 Static void ohci_device_bulk_done(usbd_xfer_handle); 190 191 Static usbd_status ohci_device_intr_transfer(usbd_xfer_handle); 192 Static usbd_status ohci_device_intr_start(usbd_xfer_handle); 193 Static void ohci_device_intr_abort(usbd_xfer_handle); 194 Static void ohci_device_intr_close(usbd_pipe_handle); 195 Static void ohci_device_intr_done(usbd_xfer_handle); 196 197 Static usbd_status ohci_device_isoc_transfer(usbd_xfer_handle); 198 Static usbd_status ohci_device_isoc_start(usbd_xfer_handle); 199 Static void ohci_device_isoc_abort(usbd_xfer_handle); 200 Static void ohci_device_isoc_close(usbd_pipe_handle); 201 Static void ohci_device_isoc_done(usbd_xfer_handle); 202 203 Static usbd_status ohci_device_setintr(ohci_softc_t *sc, 204 struct ohci_pipe *pipe, int ival); 205 206 Static int ohci_str(usb_string_descriptor_t *, int, const char *); 207 208 Static void ohci_timeout(void *); 209 Static void ohci_timeout_task(void *); 210 Static void ohci_rhsc_enable(void *); 211 212 Static void ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *); 213 Static void ohci_abort_xfer(usbd_xfer_handle, usbd_status); 214 215 Static void ohci_device_clear_toggle(usbd_pipe_handle pipe); 216 Static void ohci_noop(usbd_pipe_handle pipe); 217 218 #ifdef OHCI_DEBUG 219 Static void ohci_dumpregs(ohci_softc_t *); 220 Static void ohci_dump_tds(ohci_softc_t *, ohci_soft_td_t *); 221 Static void ohci_dump_td(ohci_softc_t *, ohci_soft_td_t *); 222 Static void ohci_dump_ed(ohci_softc_t *, ohci_soft_ed_t *); 223 Static void ohci_dump_itd(ohci_softc_t *, ohci_soft_itd_t *); 224 Static void ohci_dump_itds(ohci_softc_t *, ohci_soft_itd_t *); 225 #endif 226 227 #define OBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 228 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 229 #define OWRITE1(sc, r, x) \ 230 do { OBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 231 #define OWRITE2(sc, r, x) \ 232 do { OBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 233 #define OWRITE4(sc, r, x) \ 234 do { OBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 235 static __inline uint8_t 236 OREAD1(ohci_softc_t *sc, bus_size_t r) 237 { 238 239 OBARR(sc); 240 return bus_space_read_1(sc->iot, sc->ioh, r); 241 } 242 243 static __inline uint16_t 244 OREAD2(ohci_softc_t *sc, bus_size_t r) 245 { 246 247 OBARR(sc); 248 return bus_space_read_2(sc->iot, sc->ioh, r); 249 } 250 251 static __inline uint32_t 252 OREAD4(ohci_softc_t *sc, bus_size_t r) 253 { 254 255 OBARR(sc); 256 return bus_space_read_4(sc->iot, sc->ioh, r); 257 } 258 259 /* Reverse the bits in a value 0 .. 31 */ 260 Static u_int8_t revbits[OHCI_NO_INTRS] = 261 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 262 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 263 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 264 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 265 266 struct ohci_pipe { 267 struct usbd_pipe pipe; 268 ohci_soft_ed_t *sed; 269 union { 270 ohci_soft_td_t *td; 271 ohci_soft_itd_t *itd; 272 } tail; 273 /* Info needed for different pipe kinds. */ 274 union { 275 /* Control pipe */ 276 struct { 277 usb_dma_t reqdma; 278 u_int length; 279 ohci_soft_td_t *setup, *data, *stat; 280 } ctl; 281 /* Interrupt pipe */ 282 struct { 283 int nslots; 284 int pos; 285 } intr; 286 /* Bulk pipe */ 287 struct { 288 u_int length; 289 int isread; 290 } bulk; 291 /* Iso pipe */ 292 struct iso { 293 int next, inuse; 294 } iso; 295 } u; 296 }; 297 298 #define OHCI_INTR_ENDPT 1 299 300 Static const struct usbd_bus_methods ohci_bus_methods = { 301 ohci_open, 302 ohci_softintr, 303 ohci_poll, 304 ohci_allocm, 305 ohci_freem, 306 ohci_allocx, 307 ohci_freex, 308 }; 309 310 Static const struct usbd_pipe_methods ohci_root_ctrl_methods = { 311 ohci_root_ctrl_transfer, 312 ohci_root_ctrl_start, 313 ohci_root_ctrl_abort, 314 ohci_root_ctrl_close, 315 ohci_noop, 316 ohci_root_ctrl_done, 317 }; 318 319 Static const struct usbd_pipe_methods ohci_root_intr_methods = { 320 ohci_root_intr_transfer, 321 ohci_root_intr_start, 322 ohci_root_intr_abort, 323 ohci_root_intr_close, 324 ohci_noop, 325 ohci_root_intr_done, 326 }; 327 328 Static const struct usbd_pipe_methods ohci_device_ctrl_methods = { 329 ohci_device_ctrl_transfer, 330 ohci_device_ctrl_start, 331 ohci_device_ctrl_abort, 332 ohci_device_ctrl_close, 333 ohci_noop, 334 ohci_device_ctrl_done, 335 }; 336 337 Static const struct usbd_pipe_methods ohci_device_intr_methods = { 338 ohci_device_intr_transfer, 339 ohci_device_intr_start, 340 ohci_device_intr_abort, 341 ohci_device_intr_close, 342 ohci_device_clear_toggle, 343 ohci_device_intr_done, 344 }; 345 346 Static const struct usbd_pipe_methods ohci_device_bulk_methods = { 347 ohci_device_bulk_transfer, 348 ohci_device_bulk_start, 349 ohci_device_bulk_abort, 350 ohci_device_bulk_close, 351 ohci_device_clear_toggle, 352 ohci_device_bulk_done, 353 }; 354 355 Static const struct usbd_pipe_methods ohci_device_isoc_methods = { 356 ohci_device_isoc_transfer, 357 ohci_device_isoc_start, 358 ohci_device_isoc_abort, 359 ohci_device_isoc_close, 360 ohci_noop, 361 ohci_device_isoc_done, 362 }; 363 364 #if defined(__NetBSD__) || defined(__OpenBSD__) 365 int 366 ohci_activate(device_ptr_t self, enum devact act) 367 { 368 struct ohci_softc *sc = (struct ohci_softc *)self; 369 int rv = 0; 370 371 switch (act) { 372 case DVACT_ACTIVATE: 373 return (EOPNOTSUPP); 374 375 case DVACT_DEACTIVATE: 376 sc->sc_dying = 1; 377 if (sc->sc_child != NULL) 378 rv = config_deactivate(sc->sc_child); 379 break; 380 } 381 return (rv); 382 } 383 384 int 385 ohci_detach(struct ohci_softc *sc, int flags) 386 { 387 int rv = 0; 388 389 if (sc->sc_child != NULL) 390 rv = config_detach(sc->sc_child, flags); 391 392 if (rv != 0) 393 return (rv); 394 395 usb_uncallout(sc->sc_tmo_rhsc, ohci_rhsc_enable, sc); 396 397 #if defined(__NetBSD__) || defined(__OpenBSD__) 398 shutdownhook_disestablish(sc->sc_shutdownhook); 399 #endif 400 401 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 402 403 /* free data structures XXX */ 404 405 return (rv); 406 } 407 #endif 408 409 ohci_soft_ed_t * 410 ohci_alloc_sed(ohci_softc_t *sc) 411 { 412 ohci_soft_ed_t *sed; 413 usbd_status err; 414 int i, offs; 415 usb_dma_t dma; 416 417 if (sc->sc_freeeds == NULL) { 418 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 419 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 420 OHCI_ED_ALIGN, &dma); 421 if (err) 422 return (0); 423 for(i = 0; i < OHCI_SED_CHUNK; i++) { 424 offs = i * OHCI_SED_SIZE; 425 sed = KERNADDR(&dma, offs); 426 sed->physaddr = DMAADDR(&dma, offs); 427 sed->next = sc->sc_freeeds; 428 sc->sc_freeeds = sed; 429 } 430 } 431 sed = sc->sc_freeeds; 432 sc->sc_freeeds = sed->next; 433 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 434 sed->next = 0; 435 return (sed); 436 } 437 438 void 439 ohci_free_sed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 440 { 441 sed->next = sc->sc_freeeds; 442 sc->sc_freeeds = sed; 443 } 444 445 ohci_soft_td_t * 446 ohci_alloc_std(ohci_softc_t *sc) 447 { 448 ohci_soft_td_t *std; 449 usbd_status err; 450 int i, offs; 451 usb_dma_t dma; 452 int s; 453 454 if (sc->sc_freetds == NULL) { 455 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 456 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 457 OHCI_TD_ALIGN, &dma); 458 if (err) 459 return (NULL); 460 s = splusb(); 461 for(i = 0; i < OHCI_STD_CHUNK; i++) { 462 offs = i * OHCI_STD_SIZE; 463 std = KERNADDR(&dma, offs); 464 std->physaddr = DMAADDR(&dma, offs); 465 std->nexttd = sc->sc_freetds; 466 sc->sc_freetds = std; 467 } 468 splx(s); 469 } 470 471 s = splusb(); 472 std = sc->sc_freetds; 473 sc->sc_freetds = std->nexttd; 474 memset(&std->td, 0, sizeof(ohci_td_t)); 475 std->nexttd = NULL; 476 std->xfer = NULL; 477 ohci_hash_add_td(sc, std); 478 splx(s); 479 480 return (std); 481 } 482 483 void 484 ohci_free_std(ohci_softc_t *sc, ohci_soft_td_t *std) 485 { 486 int s; 487 488 s = splusb(); 489 ohci_hash_rem_td(sc, std); 490 std->nexttd = sc->sc_freetds; 491 sc->sc_freetds = std; 492 splx(s); 493 } 494 495 usbd_status 496 ohci_alloc_std_chain(struct ohci_pipe *opipe, ohci_softc_t *sc, 497 int alen, int rd, usbd_xfer_handle xfer, 498 ohci_soft_td_t *sp, ohci_soft_td_t **ep) 499 { 500 ohci_soft_td_t *next, *cur; 501 ohci_physaddr_t dataphys, dataphysend; 502 u_int32_t tdflags; 503 int len, curlen; 504 usb_dma_t *dma = &xfer->dmabuf; 505 u_int16_t flags = xfer->flags; 506 507 DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen)); 508 509 len = alen; 510 cur = sp; 511 dataphys = DMAADDR(dma, 0); 512 dataphysend = OHCI_PAGE(dataphys + len - 1); 513 tdflags = HTOO32( 514 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 515 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) | 516 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR); 517 518 for (;;) { 519 next = ohci_alloc_std(sc); 520 if (next == NULL) 521 goto nomem; 522 523 /* The OHCI hardware can handle at most one page crossing. */ 524 if (OHCI_PAGE(dataphys) == dataphysend || 525 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 526 /* we can handle it in this TD */ 527 curlen = len; 528 } else { 529 /* must use multiple TDs, fill as much as possible. */ 530 curlen = 2 * OHCI_PAGE_SIZE - 531 (dataphys & (OHCI_PAGE_SIZE-1)); 532 /* the length must be a multiple of the max size */ 533 curlen -= curlen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize); 534 #ifdef DIAGNOSTIC 535 if (curlen == 0) 536 panic("ohci_alloc_std: curlen == 0"); 537 #endif 538 } 539 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 540 "dataphysend=0x%08x len=%d curlen=%d\n", 541 dataphys, dataphysend, 542 len, curlen)); 543 len -= curlen; 544 545 cur->td.td_flags = tdflags; 546 cur->td.td_cbp = HTOO32(dataphys); 547 cur->nexttd = next; 548 cur->td.td_nexttd = HTOO32(next->physaddr); 549 cur->td.td_be = HTOO32(dataphys + curlen - 1); 550 cur->len = curlen; 551 cur->flags = OHCI_ADD_LEN; 552 cur->xfer = xfer; 553 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 554 dataphys, dataphys + curlen - 1)); 555 if (len == 0) 556 break; 557 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 558 dataphys += curlen; 559 cur = next; 560 } 561 if (!rd && (flags & USBD_FORCE_SHORT_XFER) && 562 alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 563 /* Force a 0 length transfer at the end. */ 564 565 cur = next; 566 next = ohci_alloc_std(sc); 567 if (next == NULL) 568 goto nomem; 569 570 cur->td.td_flags = tdflags; 571 cur->td.td_cbp = 0; /* indicate 0 length packet */ 572 cur->nexttd = next; 573 cur->td.td_nexttd = HTOO32(next->physaddr); 574 cur->td.td_be = ~0; 575 cur->len = 0; 576 cur->flags = 0; 577 cur->xfer = xfer; 578 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 579 } 580 *ep = cur; 581 582 return (USBD_NORMAL_COMPLETION); 583 584 nomem: 585 /* XXX free chain */ 586 return (USBD_NOMEM); 587 } 588 589 #if 0 590 Static void 591 ohci_free_std_chain(ohci_softc_t *sc, ohci_soft_td_t *std, 592 ohci_soft_td_t *stdend) 593 { 594 ohci_soft_td_t *p; 595 596 for (; std != stdend; std = p) { 597 p = std->nexttd; 598 ohci_free_std(sc, std); 599 } 600 } 601 #endif 602 603 ohci_soft_itd_t * 604 ohci_alloc_sitd(ohci_softc_t *sc) 605 { 606 ohci_soft_itd_t *sitd; 607 usbd_status err; 608 int i, s, offs; 609 usb_dma_t dma; 610 611 if (sc->sc_freeitds == NULL) { 612 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 613 err = usb_allocmem(&sc->sc_bus, OHCI_SITD_SIZE * OHCI_SITD_CHUNK, 614 OHCI_ITD_ALIGN, &dma); 615 if (err) 616 return (NULL); 617 s = splusb(); 618 for(i = 0; i < OHCI_SITD_CHUNK; i++) { 619 offs = i * OHCI_SITD_SIZE; 620 sitd = KERNADDR(&dma, offs); 621 sitd->physaddr = DMAADDR(&dma, offs); 622 sitd->nextitd = sc->sc_freeitds; 623 sc->sc_freeitds = sitd; 624 } 625 splx(s); 626 } 627 628 s = splusb(); 629 sitd = sc->sc_freeitds; 630 sc->sc_freeitds = sitd->nextitd; 631 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 632 sitd->nextitd = NULL; 633 sitd->xfer = NULL; 634 ohci_hash_add_itd(sc, sitd); 635 splx(s); 636 637 #ifdef DIAGNOSTIC 638 sitd->isdone = 0; 639 #endif 640 641 return (sitd); 642 } 643 644 void 645 ohci_free_sitd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 646 { 647 int s; 648 649 DPRINTFN(10,("ohci_free_sitd: sitd=%p\n", sitd)); 650 651 #ifdef DIAGNOSTIC 652 if (!sitd->isdone) { 653 panic("ohci_free_sitd: sitd=%p not done", sitd); 654 return; 655 } 656 /* Warn double free */ 657 sitd->isdone = 0; 658 #endif 659 660 s = splusb(); 661 ohci_hash_rem_itd(sc, sitd); 662 sitd->nextitd = sc->sc_freeitds; 663 sc->sc_freeitds = sitd; 664 splx(s); 665 } 666 667 usbd_status 668 ohci_init(ohci_softc_t *sc) 669 { 670 ohci_soft_ed_t *sed, *psed; 671 usbd_status err; 672 int i; 673 u_int32_t s, ctl, rwc, ival, hcr, fm, per, rev, desca, descb; 674 675 DPRINTF(("ohci_init: start\n")); 676 #if defined(__OpenBSD__) 677 printf(","); 678 #else 679 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 680 #endif 681 rev = OREAD4(sc, OHCI_REVISION); 682 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 683 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 684 685 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 686 printf("%s: unsupported OHCI revision\n", 687 USBDEVNAME(sc->sc_bus.bdev)); 688 sc->sc_bus.usbrev = USBREV_UNKNOWN; 689 return (USBD_INVAL); 690 } 691 sc->sc_bus.usbrev = USBREV_1_0; 692 693 for (i = 0; i < OHCI_HASH_SIZE; i++) 694 LIST_INIT(&sc->sc_hash_tds[i]); 695 for (i = 0; i < OHCI_HASH_SIZE; i++) 696 LIST_INIT(&sc->sc_hash_itds[i]); 697 698 SIMPLEQ_INIT(&sc->sc_free_xfers); 699 700 #ifdef __NetBSD__ 701 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 702 USB_MEM_RESERVE); 703 #endif 704 705 /* XXX determine alignment by R/W */ 706 /* Allocate the HCCA area. */ 707 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 708 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 709 if (err) 710 return (err); 711 sc->sc_hcca = KERNADDR(&sc->sc_hccadma, 0); 712 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 713 714 sc->sc_eintrs = OHCI_NORMAL_INTRS; 715 716 /* Allocate dummy ED that starts the control list. */ 717 sc->sc_ctrl_head = ohci_alloc_sed(sc); 718 if (sc->sc_ctrl_head == NULL) { 719 err = USBD_NOMEM; 720 goto bad1; 721 } 722 sc->sc_ctrl_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 723 724 /* Allocate dummy ED that starts the bulk list. */ 725 sc->sc_bulk_head = ohci_alloc_sed(sc); 726 if (sc->sc_bulk_head == NULL) { 727 err = USBD_NOMEM; 728 goto bad2; 729 } 730 sc->sc_bulk_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 731 732 /* Allocate dummy ED that starts the isochronous list. */ 733 sc->sc_isoc_head = ohci_alloc_sed(sc); 734 if (sc->sc_isoc_head == NULL) { 735 err = USBD_NOMEM; 736 goto bad3; 737 } 738 sc->sc_isoc_head->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 739 740 /* Allocate all the dummy EDs that make up the interrupt tree. */ 741 for (i = 0; i < OHCI_NO_EDS; i++) { 742 sed = ohci_alloc_sed(sc); 743 if (sed == NULL) { 744 while (--i >= 0) 745 ohci_free_sed(sc, sc->sc_eds[i]); 746 err = USBD_NOMEM; 747 goto bad4; 748 } 749 /* All ED fields are set to 0. */ 750 sc->sc_eds[i] = sed; 751 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 752 if (i != 0) 753 psed = sc->sc_eds[(i-1) / 2]; 754 else 755 psed= sc->sc_isoc_head; 756 sed->next = psed; 757 sed->ed.ed_nexted = HTOO32(psed->physaddr); 758 } 759 /* 760 * Fill HCCA interrupt table. The bit reversal is to get 761 * the tree set up properly to spread the interrupts. 762 */ 763 for (i = 0; i < OHCI_NO_INTRS; i++) 764 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 765 HTOO32(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 766 767 #ifdef OHCI_DEBUG 768 if (ohcidebug > 15) { 769 for (i = 0; i < OHCI_NO_EDS; i++) { 770 printf("ed#%d ", i); 771 ohci_dump_ed(sc, sc->sc_eds[i]); 772 } 773 printf("iso "); 774 ohci_dump_ed(sc, sc->sc_isoc_head); 775 } 776 #endif 777 778 /* Preserve values programmed by SMM/BIOS but lost over reset. */ 779 ctl = OREAD4(sc, OHCI_CONTROL); 780 rwc = ctl & OHCI_RWC; 781 fm = OREAD4(sc, OHCI_FM_INTERVAL); 782 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 783 descb = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 784 785 /* Determine in what context we are running. */ 786 if (ctl & OHCI_IR) { 787 /* SMM active, request change */ 788 DPRINTF(("ohci_init: SMM active, request owner change\n")); 789 if ((sc->sc_intre & (OHCI_OC | OHCI_MIE)) == 790 (OHCI_OC | OHCI_MIE)) 791 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_MIE); 792 s = OREAD4(sc, OHCI_COMMAND_STATUS); 793 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 794 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 795 usb_delay_ms(&sc->sc_bus, 1); 796 ctl = OREAD4(sc, OHCI_CONTROL); 797 } 798 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_MIE); 799 if ((ctl & OHCI_IR) == 0) { 800 printf("%s: SMM does not respond, resetting\n", 801 USBDEVNAME(sc->sc_bus.bdev)); 802 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 803 goto reset; 804 } 805 #if 0 806 /* Don't bother trying to reuse the BIOS init, we'll reset it anyway. */ 807 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 808 /* BIOS started controller. */ 809 DPRINTF(("ohci_init: BIOS active\n")); 810 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 811 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL | rwc); 812 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 813 } 814 #endif 815 } else { 816 DPRINTF(("ohci_init: cold started\n")); 817 reset: 818 /* Controller was cold started. */ 819 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 820 } 821 822 /* 823 * This reset should not be necessary according to the OHCI spec, but 824 * without it some controllers do not start. 825 */ 826 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 827 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET | rwc); 828 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 829 830 /* We now own the host controller and the bus has been reset. */ 831 832 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 833 /* Nominal time for a reset is 10 us. */ 834 for (i = 0; i < 10; i++) { 835 delay(10); 836 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 837 if (!hcr) 838 break; 839 } 840 if (hcr) { 841 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 842 err = USBD_IOERROR; 843 goto bad5; 844 } 845 #ifdef OHCI_DEBUG 846 if (ohcidebug > 15) 847 ohci_dumpregs(sc); 848 #endif 849 850 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 851 852 /* Set up HC registers. */ 853 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 854 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 855 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 856 /* disable all interrupts and then switch on all desired interrupts */ 857 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 858 /* switch on desired functional features */ 859 ctl = OREAD4(sc, OHCI_CONTROL); 860 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 861 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 862 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL | rwc; 863 /* And finally start it! */ 864 OWRITE4(sc, OHCI_CONTROL, ctl); 865 866 /* 867 * The controller is now OPERATIONAL. Set a some final 868 * registers that should be set earlier, but that the 869 * controller ignores when in the SUSPEND state. 870 */ 871 ival = OHCI_GET_IVAL(fm); 872 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 873 fm |= OHCI_FSMPS(ival) | ival; 874 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 875 per = OHCI_PERIODIC(ival); /* 90% periodic */ 876 OWRITE4(sc, OHCI_PERIODIC_START, per); 877 878 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 879 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 880 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 881 usb_delay_ms(&sc->sc_bus, OHCI_ENABLE_POWER_DELAY); 882 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 883 884 /* 885 * The AMD756 requires a delay before re-reading the register, 886 * otherwise it will occasionally report 0 ports. 887 */ 888 sc->sc_noport = 0; 889 for (i = 0; i < 10 && sc->sc_noport == 0; i++) { 890 usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); 891 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 892 } 893 894 #ifdef OHCI_DEBUG 895 if (ohcidebug > 5) 896 ohci_dumpregs(sc); 897 #endif 898 899 /* Set up the bus struct. */ 900 sc->sc_bus.methods = &ohci_bus_methods; 901 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 902 903 #if defined(__NetBSD__) || defined(__OpenBSD__) 904 sc->sc_control = sc->sc_intre = 0; 905 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 906 #endif 907 908 usb_callout_init(sc->sc_tmo_rhsc); 909 910 /* Finally, turn on interrupts. */ 911 DPRINTFN(1,("ohci_init: enabling\n")); 912 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 913 914 return (USBD_NORMAL_COMPLETION); 915 916 bad5: 917 for (i = 0; i < OHCI_NO_EDS; i++) 918 ohci_free_sed(sc, sc->sc_eds[i]); 919 bad4: 920 ohci_free_sed(sc, sc->sc_isoc_head); 921 bad3: 922 ohci_free_sed(sc, sc->sc_bulk_head); 923 bad2: 924 ohci_free_sed(sc, sc->sc_ctrl_head); 925 bad1: 926 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 927 return (err); 928 } 929 930 usbd_status 931 ohci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 932 { 933 #if defined(__NetBSD__) || defined(__OpenBSD__) 934 struct ohci_softc *sc = (struct ohci_softc *)bus; 935 #endif 936 usbd_status status; 937 938 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 939 #ifdef __NetBSD__ 940 if (status == USBD_NOMEM) 941 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 942 #endif 943 return status; 944 } 945 946 void 947 ohci_freem(struct usbd_bus *bus, usb_dma_t *dma) 948 { 949 #if defined(__NetBSD__) || defined(__OpenBSD__) 950 struct ohci_softc *sc = (struct ohci_softc *)bus; 951 #endif 952 #ifdef __NetBSD__ 953 if (dma->block->flags & USB_DMA_RESERVE) { 954 usb_reserve_freem(&((struct ohci_softc *)bus)->sc_dma_reserve, 955 dma); 956 return; 957 } 958 #endif 959 usb_freemem(&sc->sc_bus, dma); 960 } 961 962 usbd_xfer_handle 963 ohci_allocx(struct usbd_bus *bus) 964 { 965 struct ohci_softc *sc = (struct ohci_softc *)bus; 966 usbd_xfer_handle xfer; 967 968 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 969 if (xfer != NULL) { 970 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 971 #ifdef DIAGNOSTIC 972 if (xfer->busy_free != XFER_FREE) { 973 printf("ohci_allocx: xfer=%p not free, 0x%08x\n", xfer, 974 xfer->busy_free); 975 } 976 #endif 977 } else { 978 xfer = malloc(sizeof(struct ohci_xfer), M_USB, M_NOWAIT); 979 } 980 if (xfer != NULL) { 981 memset(xfer, 0, sizeof (struct ohci_xfer)); 982 #ifdef DIAGNOSTIC 983 xfer->busy_free = XFER_BUSY; 984 #endif 985 } 986 return (xfer); 987 } 988 989 void 990 ohci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 991 { 992 struct ohci_softc *sc = (struct ohci_softc *)bus; 993 994 #ifdef DIAGNOSTIC 995 if (xfer->busy_free != XFER_BUSY) { 996 printf("ohci_freex: xfer=%p not busy, 0x%08x\n", xfer, 997 xfer->busy_free); 998 } 999 xfer->busy_free = XFER_FREE; 1000 #endif 1001 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 1002 } 1003 1004 /* 1005 * Shut down the controller when the system is going down. 1006 */ 1007 void 1008 ohci_shutdown(void *v) 1009 { 1010 ohci_softc_t *sc = v; 1011 1012 DPRINTF(("ohci_shutdown: stopping the HC\n")); 1013 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1014 } 1015 1016 void 1017 ohci_resume(device_t dv) 1018 { 1019 ohci_softc_t *sc = device_private(dv); 1020 uint32_t ctl; 1021 int s; 1022 1023 s = splhardusb(); 1024 sc->sc_bus.use_polling++; 1025 /* Some broken BIOSes do not recover these values */ 1026 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma, 0)); 1027 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, 1028 sc->sc_ctrl_head->physaddr); 1029 OWRITE4(sc, OHCI_BULK_HEAD_ED, 1030 sc->sc_bulk_head->physaddr); 1031 if (sc->sc_intre) 1032 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_intre & 1033 (OHCI_ALL_INTRS | OHCI_MIE)); 1034 if (sc->sc_control) 1035 ctl = sc->sc_control; 1036 else 1037 ctl = OREAD4(sc, OHCI_CONTROL); 1038 ctl |= OHCI_HCFS_RESUME; 1039 OWRITE4(sc, OHCI_CONTROL, ctl); 1040 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 1041 ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL; 1042 OWRITE4(sc, OHCI_CONTROL, ctl); 1043 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 1044 sc->sc_control = sc->sc_intre = 0; 1045 sc->sc_bus.use_polling--; 1046 } 1047 1048 void 1049 ohci_suspend(device_t dv) 1050 { 1051 ohci_softc_t *sc = device_private(dv); 1052 uint32_t ctl; 1053 int s; 1054 1055 s = splhardusb(); 1056 sc->sc_bus.use_polling++; 1057 ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK; 1058 if (sc->sc_control == 0) { 1059 /* 1060 * Preserve register values, in case that BIOS 1061 * does not recover them. 1062 */ 1063 sc->sc_control = ctl; 1064 sc->sc_intre = OREAD4(sc, 1065 OHCI_INTERRUPT_ENABLE); 1066 } 1067 ctl |= OHCI_HCFS_SUSPEND; 1068 OWRITE4(sc, OHCI_CONTROL, ctl); 1069 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 1070 sc->sc_bus.use_polling--; 1071 splx(s); 1072 } 1073 1074 #ifdef OHCI_DEBUG 1075 void 1076 ohci_dumpregs(ohci_softc_t *sc) 1077 { 1078 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 1079 OREAD4(sc, OHCI_REVISION), 1080 OREAD4(sc, OHCI_CONTROL), 1081 OREAD4(sc, OHCI_COMMAND_STATUS))); 1082 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 1083 OREAD4(sc, OHCI_INTERRUPT_STATUS), 1084 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 1085 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 1086 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 1087 OREAD4(sc, OHCI_HCCA), 1088 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 1089 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 1090 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 1091 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 1092 OREAD4(sc, OHCI_BULK_HEAD_ED), 1093 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 1094 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 1095 OREAD4(sc, OHCI_DONE_HEAD), 1096 OREAD4(sc, OHCI_FM_INTERVAL), 1097 OREAD4(sc, OHCI_FM_REMAINING))); 1098 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 1099 OREAD4(sc, OHCI_FM_NUMBER), 1100 OREAD4(sc, OHCI_PERIODIC_START), 1101 OREAD4(sc, OHCI_LS_THRESHOLD))); 1102 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 1103 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 1104 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 1105 OREAD4(sc, OHCI_RH_STATUS))); 1106 DPRINTF((" port1=0x%08x port2=0x%08x\n", 1107 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 1108 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 1109 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 1110 O32TOH(sc->sc_hcca->hcca_frame_number), 1111 O32TOH(sc->sc_hcca->hcca_done_head))); 1112 } 1113 #endif 1114 1115 Static int ohci_intr1(ohci_softc_t *); 1116 1117 int 1118 ohci_intr(void *p) 1119 { 1120 ohci_softc_t *sc = p; 1121 1122 if (sc == NULL || sc->sc_dying) 1123 return (0); 1124 1125 /* If we get an interrupt while polling, then just ignore it. */ 1126 if (sc->sc_bus.use_polling) { 1127 #ifdef DIAGNOSTIC 1128 DPRINTFN(16, ("ohci_intr: ignored interrupt while polling\n")); 1129 #endif 1130 /* for level triggered intrs, should do something to ack */ 1131 OWRITE4(sc, OHCI_INTERRUPT_STATUS, 1132 OREAD4(sc, OHCI_INTERRUPT_STATUS)); 1133 1134 return (0); 1135 } 1136 1137 return (ohci_intr1(sc)); 1138 } 1139 1140 Static int 1141 ohci_intr1(ohci_softc_t *sc) 1142 { 1143 u_int32_t intrs, eintrs; 1144 1145 DPRINTFN(14,("ohci_intr1: enter\n")); 1146 1147 /* In case the interrupt occurs before initialization has completed. */ 1148 if (sc == NULL || sc->sc_hcca == NULL) { 1149 #ifdef DIAGNOSTIC 1150 printf("ohci_intr: sc->sc_hcca == NULL\n"); 1151 #endif 1152 return (0); 1153 } 1154 1155 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1156 if (!intrs) 1157 return (0); 1158 1159 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs & ~(OHCI_MIE|OHCI_WDH)); /* Acknowledge */ 1160 eintrs = intrs & sc->sc_eintrs; 1161 if (!eintrs) 1162 return (0); 1163 1164 sc->sc_bus.intr_context++; 1165 sc->sc_bus.no_intrs++; 1166 DPRINTFN(7, ("ohci_intr: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 1167 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 1168 (u_int)eintrs)); 1169 1170 if (eintrs & OHCI_SO) { 1171 sc->sc_overrun_cnt++; 1172 if (usbd_ratecheck(&sc->sc_overrun_ntc)) { 1173 printf("%s: %u scheduling overruns\n", 1174 USBDEVNAME(sc->sc_bus.bdev), sc->sc_overrun_cnt); 1175 sc->sc_overrun_cnt = 0; 1176 } 1177 /* XXX do what */ 1178 eintrs &= ~OHCI_SO; 1179 } 1180 if (eintrs & OHCI_WDH) { 1181 /* 1182 * We block the interrupt below, and reenable it later from 1183 * ohci_softintr(). 1184 */ 1185 usb_schedsoftintr(&sc->sc_bus); 1186 } 1187 if (eintrs & OHCI_RD) { 1188 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1189 /* XXX process resume detect */ 1190 } 1191 if (eintrs & OHCI_UE) { 1192 printf("%s: unrecoverable error, controller halted\n", 1193 USBDEVNAME(sc->sc_bus.bdev)); 1194 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1195 /* XXX what else */ 1196 } 1197 if (eintrs & OHCI_RHSC) { 1198 /* 1199 * We block the interrupt below, and reenable it later from 1200 * a timeout. 1201 */ 1202 ohci_rhsc(sc, sc->sc_intrxfer); 1203 /* Do not allow RHSC interrupts > 1 per second */ 1204 usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc); 1205 } 1206 1207 sc->sc_bus.intr_context--; 1208 1209 if (eintrs != 0) { 1210 /* Block unprocessed interrupts. */ 1211 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, eintrs); 1212 sc->sc_eintrs &= ~eintrs; 1213 DPRINTFN(1, ("%s: blocking intrs 0x%x\n", 1214 USBDEVNAME(sc->sc_bus.bdev), eintrs)); 1215 } 1216 1217 return (1); 1218 } 1219 1220 void 1221 ohci_rhsc_enable(void *v_sc) 1222 { 1223 ohci_softc_t *sc = v_sc; 1224 int s; 1225 1226 s = splhardusb(); 1227 sc->sc_eintrs |= OHCI_RHSC; 1228 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1229 splx(s); 1230 } 1231 1232 #ifdef OHCI_DEBUG 1233 const char *ohci_cc_strs[] = { 1234 "NO_ERROR", 1235 "CRC", 1236 "BIT_STUFFING", 1237 "DATA_TOGGLE_MISMATCH", 1238 "STALL", 1239 "DEVICE_NOT_RESPONDING", 1240 "PID_CHECK_FAILURE", 1241 "UNEXPECTED_PID", 1242 "DATA_OVERRUN", 1243 "DATA_UNDERRUN", 1244 "BUFFER_OVERRUN", 1245 "BUFFER_UNDERRUN", 1246 "reserved", 1247 "reserved", 1248 "NOT_ACCESSED", 1249 "NOT_ACCESSED", 1250 }; 1251 #endif 1252 1253 void 1254 ohci_softintr(void *v) 1255 { 1256 ohci_softc_t *sc = v; 1257 ohci_soft_itd_t *sitd, *sidone, *sitdnext; 1258 ohci_soft_td_t *std, *sdone, *stdnext; 1259 usbd_xfer_handle xfer; 1260 struct ohci_pipe *opipe; 1261 int len, cc, s; 1262 int i, j, actlen, iframes, uedir; 1263 ohci_physaddr_t done; 1264 1265 DPRINTFN(10,("ohci_softintr: enter\n")); 1266 1267 sc->sc_bus.intr_context++; 1268 1269 s = splhardusb(); 1270 done = O32TOH(sc->sc_hcca->hcca_done_head) & ~OHCI_DONE_INTRS; 1271 sc->sc_hcca->hcca_done_head = 0; 1272 OWRITE4(sc, OHCI_INTERRUPT_STATUS, OHCI_WDH); 1273 sc->sc_eintrs |= OHCI_WDH; 1274 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_WDH); 1275 splx(s); 1276 1277 /* Reverse the done list. */ 1278 for (sdone = NULL, sidone = NULL; done != 0; ) { 1279 std = ohci_hash_find_td(sc, done); 1280 if (std != NULL) { 1281 std->dnext = sdone; 1282 done = O32TOH(std->td.td_nexttd); 1283 sdone = std; 1284 DPRINTFN(10,("add TD %p\n", std)); 1285 continue; 1286 } 1287 sitd = ohci_hash_find_itd(sc, done); 1288 if (sitd != NULL) { 1289 sitd->dnext = sidone; 1290 done = O32TOH(sitd->itd.itd_nextitd); 1291 sidone = sitd; 1292 DPRINTFN(5,("add ITD %p\n", sitd)); 1293 continue; 1294 } 1295 panic("ohci_softintr: addr 0x%08lx not found", (u_long)done); 1296 } 1297 1298 DPRINTFN(10,("ohci_softintr: sdone=%p sidone=%p\n", sdone, sidone)); 1299 1300 #ifdef OHCI_DEBUG 1301 if (ohcidebug > 10) { 1302 DPRINTF(("ohci_process_done: TD done:\n")); 1303 ohci_dump_tds(sc, sdone); 1304 } 1305 #endif 1306 1307 for (std = sdone; std; std = stdnext) { 1308 xfer = std->xfer; 1309 stdnext = std->dnext; 1310 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1311 std, xfer, xfer ? xfer->hcpriv : 0)); 1312 if (xfer == NULL) { 1313 /* 1314 * xfer == NULL: There seems to be no xfer associated 1315 * with this TD. It is tailp that happened to end up on 1316 * the done queue. 1317 * Shouldn't happen, but some chips are broken(?). 1318 */ 1319 continue; 1320 } 1321 if (xfer->status == USBD_CANCELLED || 1322 xfer->status == USBD_TIMEOUT) { 1323 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1324 xfer)); 1325 /* Handled by abort routine. */ 1326 continue; 1327 } 1328 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 1329 1330 len = std->len; 1331 if (std->td.td_cbp != 0) 1332 len -= O32TOH(std->td.td_be) - 1333 O32TOH(std->td.td_cbp) + 1; 1334 DPRINTFN(10, ("ohci_process_done: len=%d, flags=0x%x\n", len, 1335 std->flags)); 1336 if (std->flags & OHCI_ADD_LEN) 1337 xfer->actlen += len; 1338 1339 cc = OHCI_TD_GET_CC(O32TOH(std->td.td_flags)); 1340 if (cc == OHCI_CC_NO_ERROR) { 1341 if (std->flags & OHCI_CALL_DONE) { 1342 xfer->status = USBD_NORMAL_COMPLETION; 1343 s = splusb(); 1344 usb_transfer_complete(xfer); 1345 splx(s); 1346 } 1347 ohci_free_std(sc, std); 1348 } else { 1349 /* 1350 * Endpoint is halted. First unlink all the TDs 1351 * belonging to the failed transfer, and then restart 1352 * the endpoint. 1353 */ 1354 ohci_soft_td_t *p, *n; 1355 opipe = (struct ohci_pipe *)xfer->pipe; 1356 1357 DPRINTFN(15,("ohci_process_done: error cc=%d (%s)\n", 1358 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1359 ohci_cc_strs[OHCI_TD_GET_CC(O32TOH(std->td.td_flags))])); 1360 1361 /* remove TDs */ 1362 for (p = std; p->xfer == xfer; p = n) { 1363 n = p->nexttd; 1364 ohci_free_std(sc, p); 1365 } 1366 1367 /* clear halt */ 1368 opipe->sed->ed.ed_headp = HTOO32(p->physaddr); 1369 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1370 1371 if (cc == OHCI_CC_STALL) 1372 xfer->status = USBD_STALLED; 1373 else 1374 xfer->status = USBD_IOERROR; 1375 s = splusb(); 1376 usb_transfer_complete(xfer); 1377 splx(s); 1378 } 1379 } 1380 1381 #ifdef OHCI_DEBUG 1382 if (ohcidebug > 10) { 1383 DPRINTF(("ohci_softintr: ITD done:\n")); 1384 ohci_dump_itds(sc, sidone); 1385 } 1386 #endif 1387 1388 for (sitd = sidone; sitd != NULL; sitd = sitdnext) { 1389 xfer = sitd->xfer; 1390 sitdnext = sitd->dnext; 1391 DPRINTFN(1, ("ohci_process_done: sitd=%p xfer=%p hcpriv=%p\n", 1392 sitd, xfer, xfer ? xfer->hcpriv : 0)); 1393 if (xfer == NULL) 1394 continue; 1395 if (xfer->status == USBD_CANCELLED || 1396 xfer->status == USBD_TIMEOUT) { 1397 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1398 xfer)); 1399 /* Handled by abort routine. */ 1400 continue; 1401 } 1402 #ifdef DIAGNOSTIC 1403 if (sitd->isdone) 1404 printf("ohci_softintr: sitd=%p is done\n", sitd); 1405 sitd->isdone = 1; 1406 #endif 1407 if (sitd->flags & OHCI_CALL_DONE) { 1408 ohci_soft_itd_t *next; 1409 1410 opipe = (struct ohci_pipe *)xfer->pipe; 1411 opipe->u.iso.inuse -= xfer->nframes; 1412 uedir = UE_GET_DIR(xfer->pipe->endpoint->edesc-> 1413 bEndpointAddress); 1414 xfer->status = USBD_NORMAL_COMPLETION; 1415 actlen = 0; 1416 for (i = 0, sitd = xfer->hcpriv;; 1417 sitd = next) { 1418 next = sitd->nextitd; 1419 if (OHCI_ITD_GET_CC(O32TOH(sitd-> 1420 itd.itd_flags)) != OHCI_CC_NO_ERROR) 1421 xfer->status = USBD_IOERROR; 1422 /* For input, update frlengths with actual */ 1423 /* XXX anything necessary for output? */ 1424 if (uedir == UE_DIR_IN && 1425 xfer->status == USBD_NORMAL_COMPLETION) { 1426 iframes = OHCI_ITD_GET_FC(O32TOH( 1427 sitd->itd.itd_flags)); 1428 for (j = 0; j < iframes; i++, j++) { 1429 len = O16TOH(sitd-> 1430 itd.itd_offset[j]); 1431 if ((OHCI_ITD_PSW_GET_CC(len) & 1432 OHCI_CC_NOT_ACCESSED_MASK) 1433 == OHCI_CC_NOT_ACCESSED) 1434 len = 0; 1435 else 1436 len = OHCI_ITD_PSW_LENGTH(len); 1437 xfer->frlengths[i] = len; 1438 actlen += len; 1439 } 1440 } 1441 if (sitd->flags & OHCI_CALL_DONE) 1442 break; 1443 ohci_free_sitd(sc, sitd); 1444 } 1445 ohci_free_sitd(sc, sitd); 1446 if (uedir == UE_DIR_IN && 1447 xfer->status == USBD_NORMAL_COMPLETION) 1448 xfer->actlen = actlen; 1449 xfer->hcpriv = NULL; 1450 1451 s = splusb(); 1452 usb_transfer_complete(xfer); 1453 splx(s); 1454 } 1455 } 1456 1457 #ifdef USB_USE_SOFTINTR 1458 if (sc->sc_softwake) { 1459 sc->sc_softwake = 0; 1460 wakeup(&sc->sc_softwake); 1461 } 1462 #endif /* USB_USE_SOFTINTR */ 1463 1464 sc->sc_bus.intr_context--; 1465 DPRINTFN(10,("ohci_softintr: done:\n")); 1466 } 1467 1468 void 1469 ohci_device_ctrl_done(usbd_xfer_handle xfer) 1470 { 1471 DPRINTFN(10,("ohci_device_ctrl_done: xfer=%p\n", xfer)); 1472 1473 #ifdef DIAGNOSTIC 1474 if (!(xfer->rqflags & URQ_REQUEST)) { 1475 panic("ohci_device_ctrl_done: not a request"); 1476 } 1477 #endif 1478 } 1479 1480 void 1481 ohci_device_intr_done(usbd_xfer_handle xfer) 1482 { 1483 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1484 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1485 ohci_soft_ed_t *sed = opipe->sed; 1486 ohci_soft_td_t *data, *tail; 1487 1488 1489 DPRINTFN(10,("ohci_device_intr_done: xfer=%p, actlen=%d\n", 1490 xfer, xfer->actlen)); 1491 1492 if (xfer->pipe->repeat) { 1493 data = opipe->tail.td; 1494 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1495 if (tail == NULL) { 1496 xfer->status = USBD_NOMEM; 1497 return; 1498 } 1499 tail->xfer = NULL; 1500 1501 data->td.td_flags = HTOO32( 1502 OHCI_TD_IN | OHCI_TD_NOCC | 1503 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1504 if (xfer->flags & USBD_SHORT_XFER_OK) 1505 data->td.td_flags |= HTOO32(OHCI_TD_R); 1506 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 1507 data->nexttd = tail; 1508 data->td.td_nexttd = HTOO32(tail->physaddr); 1509 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + 1510 xfer->length - 1); 1511 data->len = xfer->length; 1512 data->xfer = xfer; 1513 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1514 xfer->hcpriv = data; 1515 xfer->actlen = 0; 1516 1517 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1518 opipe->tail.td = tail; 1519 } 1520 } 1521 1522 void 1523 ohci_device_bulk_done(usbd_xfer_handle xfer) 1524 { 1525 DPRINTFN(10,("ohci_device_bulk_done: xfer=%p, actlen=%d\n", 1526 xfer, xfer->actlen)); 1527 } 1528 1529 void 1530 ohci_rhsc(ohci_softc_t *sc, usbd_xfer_handle xfer) 1531 { 1532 usbd_pipe_handle pipe; 1533 u_char *p; 1534 int i, m; 1535 int hstatus; 1536 1537 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1538 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1539 sc, xfer, hstatus)); 1540 1541 if (xfer == NULL) { 1542 /* Just ignore the change. */ 1543 return; 1544 } 1545 1546 pipe = xfer->pipe; 1547 1548 p = KERNADDR(&xfer->dmabuf, 0); 1549 m = min(sc->sc_noport, xfer->length * 8 - 1); 1550 memset(p, 0, xfer->length); 1551 for (i = 1; i <= m; i++) { 1552 /* Pick out CHANGE bits from the status reg. */ 1553 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1554 p[i/8] |= 1 << (i%8); 1555 } 1556 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1557 xfer->actlen = xfer->length; 1558 xfer->status = USBD_NORMAL_COMPLETION; 1559 1560 usb_transfer_complete(xfer); 1561 } 1562 1563 void 1564 ohci_root_intr_done(usbd_xfer_handle xfer) 1565 { 1566 } 1567 1568 void 1569 ohci_root_ctrl_done(usbd_xfer_handle xfer) 1570 { 1571 } 1572 1573 /* 1574 * Wait here until controller claims to have an interrupt. 1575 * Then call ohci_intr and return. Use timeout to avoid waiting 1576 * too long. 1577 */ 1578 void 1579 ohci_waitintr(ohci_softc_t *sc, usbd_xfer_handle xfer) 1580 { 1581 int timo; 1582 u_int32_t intrs; 1583 1584 xfer->status = USBD_IN_PROGRESS; 1585 for (timo = xfer->timeout; timo >= 0; timo--) { 1586 usb_delay_ms(&sc->sc_bus, 1); 1587 if (sc->sc_dying) 1588 break; 1589 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1590 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1591 #ifdef OHCI_DEBUG 1592 if (ohcidebug > 15) 1593 ohci_dumpregs(sc); 1594 #endif 1595 if (intrs) { 1596 ohci_intr1(sc); 1597 if (xfer->status != USBD_IN_PROGRESS) 1598 return; 1599 } 1600 } 1601 1602 /* Timeout */ 1603 DPRINTF(("ohci_waitintr: timeout\n")); 1604 xfer->status = USBD_TIMEOUT; 1605 usb_transfer_complete(xfer); 1606 /* XXX should free TD */ 1607 } 1608 1609 void 1610 ohci_poll(struct usbd_bus *bus) 1611 { 1612 ohci_softc_t *sc = (ohci_softc_t *)bus; 1613 #ifdef OHCI_DEBUG 1614 static int last; 1615 int new; 1616 new = OREAD4(sc, OHCI_INTERRUPT_STATUS); 1617 if (new != last) { 1618 DPRINTFN(10,("ohci_poll: intrs=0x%04x\n", new)); 1619 last = new; 1620 } 1621 #endif 1622 1623 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1624 ohci_intr1(sc); 1625 } 1626 1627 usbd_status 1628 ohci_device_request(usbd_xfer_handle xfer) 1629 { 1630 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1631 usb_device_request_t *req = &xfer->request; 1632 usbd_device_handle dev = opipe->pipe.device; 1633 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1634 int addr = dev->address; 1635 ohci_soft_td_t *setup, *stat, *next, *tail; 1636 ohci_soft_ed_t *sed; 1637 int isread; 1638 int len; 1639 usbd_status err; 1640 int s; 1641 1642 isread = req->bmRequestType & UT_READ; 1643 len = UGETW(req->wLength); 1644 1645 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1646 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1647 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1648 UGETW(req->wIndex), len, addr, 1649 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1650 1651 setup = opipe->tail.td; 1652 stat = ohci_alloc_std(sc); 1653 if (stat == NULL) { 1654 err = USBD_NOMEM; 1655 goto bad1; 1656 } 1657 tail = ohci_alloc_std(sc); 1658 if (tail == NULL) { 1659 err = USBD_NOMEM; 1660 goto bad2; 1661 } 1662 tail->xfer = NULL; 1663 1664 sed = opipe->sed; 1665 opipe->u.ctl.length = len; 1666 1667 /* Update device address and length since they may have changed 1668 during the setup of the control pipe in usbd_new_device(). */ 1669 /* XXX This only needs to be done once, but it's too early in open. */ 1670 /* XXXX Should not touch ED here! */ 1671 sed->ed.ed_flags = HTOO32( 1672 (O32TOH(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1673 OHCI_ED_SET_FA(addr) | 1674 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1675 1676 next = stat; 1677 1678 /* Set up data transaction */ 1679 if (len != 0) { 1680 ohci_soft_td_t *std = stat; 1681 1682 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 1683 std, &stat); 1684 stat = stat->nexttd; /* point at free TD */ 1685 if (err) 1686 goto bad3; 1687 /* Start toggle at 1 and then use the carried toggle. */ 1688 std->td.td_flags &= HTOO32(~OHCI_TD_TOGGLE_MASK); 1689 std->td.td_flags |= HTOO32(OHCI_TD_TOGGLE_1); 1690 } 1691 1692 memcpy(KERNADDR(&opipe->u.ctl.reqdma, 0), req, sizeof *req); 1693 1694 setup->td.td_flags = HTOO32(OHCI_TD_SETUP | OHCI_TD_NOCC | 1695 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1696 setup->td.td_cbp = HTOO32(DMAADDR(&opipe->u.ctl.reqdma, 0)); 1697 setup->nexttd = next; 1698 setup->td.td_nexttd = HTOO32(next->physaddr); 1699 setup->td.td_be = HTOO32(O32TOH(setup->td.td_cbp) + sizeof *req - 1); 1700 setup->len = 0; 1701 setup->xfer = xfer; 1702 setup->flags = 0; 1703 xfer->hcpriv = setup; 1704 1705 stat->td.td_flags = HTOO32( 1706 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | 1707 OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1708 stat->td.td_cbp = 0; 1709 stat->nexttd = tail; 1710 stat->td.td_nexttd = HTOO32(tail->physaddr); 1711 stat->td.td_be = 0; 1712 stat->flags = OHCI_CALL_DONE; 1713 stat->len = 0; 1714 stat->xfer = xfer; 1715 1716 #ifdef OHCI_DEBUG 1717 if (ohcidebug > 5) { 1718 DPRINTF(("ohci_device_request:\n")); 1719 ohci_dump_ed(sc, sed); 1720 ohci_dump_tds(sc, setup); 1721 } 1722 #endif 1723 1724 /* Insert ED in schedule */ 1725 s = splusb(); 1726 sed->ed.ed_tailp = HTOO32(tail->physaddr); 1727 opipe->tail.td = tail; 1728 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1729 if (xfer->timeout && !sc->sc_bus.use_polling) { 1730 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1731 ohci_timeout, xfer); 1732 } 1733 splx(s); 1734 1735 #ifdef OHCI_DEBUG 1736 if (ohcidebug > 20) { 1737 delay(10000); 1738 DPRINTF(("ohci_device_request: status=%x\n", 1739 OREAD4(sc, OHCI_COMMAND_STATUS))); 1740 ohci_dumpregs(sc); 1741 printf("ctrl head:\n"); 1742 ohci_dump_ed(sc, sc->sc_ctrl_head); 1743 printf("sed:\n"); 1744 ohci_dump_ed(sc, sed); 1745 ohci_dump_tds(sc, setup); 1746 } 1747 #endif 1748 1749 return (USBD_NORMAL_COMPLETION); 1750 1751 bad3: 1752 ohci_free_std(sc, tail); 1753 bad2: 1754 ohci_free_std(sc, stat); 1755 bad1: 1756 return (err); 1757 } 1758 1759 /* 1760 * Add an ED to the schedule. Called at splusb(). 1761 */ 1762 void 1763 ohci_add_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1764 { 1765 DPRINTFN(8,("ohci_add_ed: sed=%p head=%p\n", sed, head)); 1766 1767 SPLUSBCHECK; 1768 sed->next = head->next; 1769 sed->ed.ed_nexted = head->ed.ed_nexted; 1770 head->next = sed; 1771 head->ed.ed_nexted = HTOO32(sed->physaddr); 1772 } 1773 1774 /* 1775 * Remove an ED from the schedule. Called at splusb(). 1776 */ 1777 void 1778 ohci_rem_ed(ohci_soft_ed_t *sed, ohci_soft_ed_t *head) 1779 { 1780 ohci_soft_ed_t *p; 1781 1782 SPLUSBCHECK; 1783 1784 /* XXX */ 1785 for (p = head; p != NULL && p->next != sed; p = p->next) 1786 ; 1787 if (p == NULL) 1788 panic("ohci_rem_ed: ED not found"); 1789 p->next = sed->next; 1790 p->ed.ed_nexted = sed->ed.ed_nexted; 1791 } 1792 1793 /* 1794 * When a transfer is completed the TD is added to the done queue by 1795 * the host controller. This queue is the processed by software. 1796 * Unfortunately the queue contains the physical address of the TD 1797 * and we have no simple way to translate this back to a kernel address. 1798 * To make the translation possible (and fast) we use a hash table of 1799 * TDs currently in the schedule. The physical address is used as the 1800 * hash value. 1801 */ 1802 1803 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1804 /* Called at splusb() */ 1805 void 1806 ohci_hash_add_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1807 { 1808 int h = HASH(std->physaddr); 1809 1810 SPLUSBCHECK; 1811 1812 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1813 } 1814 1815 /* Called at splusb() */ 1816 void 1817 ohci_hash_rem_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1818 { 1819 SPLUSBCHECK; 1820 1821 LIST_REMOVE(std, hnext); 1822 } 1823 1824 ohci_soft_td_t * 1825 ohci_hash_find_td(ohci_softc_t *sc, ohci_physaddr_t a) 1826 { 1827 int h = HASH(a); 1828 ohci_soft_td_t *std; 1829 1830 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1831 std != NULL; 1832 std = LIST_NEXT(std, hnext)) 1833 if (std->physaddr == a) 1834 return (std); 1835 return (NULL); 1836 } 1837 1838 /* Called at splusb() */ 1839 void 1840 ohci_hash_add_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1841 { 1842 int h = HASH(sitd->physaddr); 1843 1844 SPLUSBCHECK; 1845 1846 DPRINTFN(10,("ohci_hash_add_itd: sitd=%p physaddr=0x%08lx\n", 1847 sitd, (u_long)sitd->physaddr)); 1848 1849 LIST_INSERT_HEAD(&sc->sc_hash_itds[h], sitd, hnext); 1850 } 1851 1852 /* Called at splusb() */ 1853 void 1854 ohci_hash_rem_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1855 { 1856 SPLUSBCHECK; 1857 1858 DPRINTFN(10,("ohci_hash_rem_itd: sitd=%p physaddr=0x%08lx\n", 1859 sitd, (u_long)sitd->physaddr)); 1860 1861 LIST_REMOVE(sitd, hnext); 1862 } 1863 1864 ohci_soft_itd_t * 1865 ohci_hash_find_itd(ohci_softc_t *sc, ohci_physaddr_t a) 1866 { 1867 int h = HASH(a); 1868 ohci_soft_itd_t *sitd; 1869 1870 for (sitd = LIST_FIRST(&sc->sc_hash_itds[h]); 1871 sitd != NULL; 1872 sitd = LIST_NEXT(sitd, hnext)) 1873 if (sitd->physaddr == a) 1874 return (sitd); 1875 return (NULL); 1876 } 1877 1878 void 1879 ohci_timeout(void *addr) 1880 { 1881 struct ohci_xfer *oxfer = addr; 1882 struct ohci_pipe *opipe = (struct ohci_pipe *)oxfer->xfer.pipe; 1883 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1884 1885 DPRINTF(("ohci_timeout: oxfer=%p\n", oxfer)); 1886 1887 if (sc->sc_dying) { 1888 ohci_abort_xfer(&oxfer->xfer, USBD_TIMEOUT); 1889 return; 1890 } 1891 1892 /* Execute the abort in a process context. */ 1893 usb_init_task(&oxfer->abort_task, ohci_timeout_task, addr); 1894 usb_add_task(oxfer->xfer.pipe->device, &oxfer->abort_task, 1895 USB_TASKQ_HC); 1896 } 1897 1898 void 1899 ohci_timeout_task(void *addr) 1900 { 1901 usbd_xfer_handle xfer = addr; 1902 int s; 1903 1904 DPRINTF(("ohci_timeout_task: xfer=%p\n", xfer)); 1905 1906 s = splusb(); 1907 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1908 splx(s); 1909 } 1910 1911 #ifdef OHCI_DEBUG 1912 void 1913 ohci_dump_tds(ohci_softc_t *sc, ohci_soft_td_t *std) 1914 { 1915 for (; std; std = std->nexttd) 1916 ohci_dump_td(sc, std); 1917 } 1918 1919 void 1920 ohci_dump_td(ohci_softc_t *sc, ohci_soft_td_t *std) 1921 { 1922 char sbuf[128]; 1923 1924 bitmask_snprintf((u_int32_t)O32TOH(std->td.td_flags), 1925 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1926 sbuf, sizeof(sbuf)); 1927 1928 printf("TD(%p) at %08lx: %s delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1929 "nexttd=0x%08lx be=0x%08lx\n", 1930 std, (u_long)std->physaddr, sbuf, 1931 OHCI_TD_GET_DI(O32TOH(std->td.td_flags)), 1932 OHCI_TD_GET_EC(O32TOH(std->td.td_flags)), 1933 OHCI_TD_GET_CC(O32TOH(std->td.td_flags)), 1934 (u_long)O32TOH(std->td.td_cbp), 1935 (u_long)O32TOH(std->td.td_nexttd), 1936 (u_long)O32TOH(std->td.td_be)); 1937 } 1938 1939 void 1940 ohci_dump_itd(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1941 { 1942 int i; 1943 1944 printf("ITD(%p) at %08lx: sf=%d di=%d fc=%d cc=%d\n" 1945 "bp0=0x%08lx next=0x%08lx be=0x%08lx\n", 1946 sitd, (u_long)sitd->physaddr, 1947 OHCI_ITD_GET_SF(O32TOH(sitd->itd.itd_flags)), 1948 OHCI_ITD_GET_DI(O32TOH(sitd->itd.itd_flags)), 1949 OHCI_ITD_GET_FC(O32TOH(sitd->itd.itd_flags)), 1950 OHCI_ITD_GET_CC(O32TOH(sitd->itd.itd_flags)), 1951 (u_long)O32TOH(sitd->itd.itd_bp0), 1952 (u_long)O32TOH(sitd->itd.itd_nextitd), 1953 (u_long)O32TOH(sitd->itd.itd_be)); 1954 for (i = 0; i < OHCI_ITD_NOFFSET; i++) 1955 printf("offs[%d]=0x%04x ", i, 1956 (u_int)O16TOH(sitd->itd.itd_offset[i])); 1957 printf("\n"); 1958 } 1959 1960 void 1961 ohci_dump_itds(ohci_softc_t *sc, ohci_soft_itd_t *sitd) 1962 { 1963 for (; sitd; sitd = sitd->nextitd) 1964 ohci_dump_itd(sc, sitd); 1965 } 1966 1967 void 1968 ohci_dump_ed(ohci_softc_t *sc, ohci_soft_ed_t *sed) 1969 { 1970 char sbuf[128], sbuf2[128]; 1971 1972 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_flags), 1973 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1974 sbuf, sizeof(sbuf)); 1975 bitmask_snprintf((u_int32_t)O32TOH(sed->ed.ed_headp), 1976 "\20\1HALT\2CARRY", sbuf2, sizeof(sbuf2)); 1977 1978 printf("ED(%p) at 0x%08lx: addr=%d endpt=%d maxp=%d flags=%s\ntailp=0x%08lx " 1979 "headflags=%s headp=0x%08lx nexted=0x%08lx\n", 1980 sed, (u_long)sed->physaddr, 1981 OHCI_ED_GET_FA(O32TOH(sed->ed.ed_flags)), 1982 OHCI_ED_GET_EN(O32TOH(sed->ed.ed_flags)), 1983 OHCI_ED_GET_MAXP(O32TOH(sed->ed.ed_flags)), sbuf, 1984 (u_long)O32TOH(sed->ed.ed_tailp), sbuf2, 1985 (u_long)O32TOH(sed->ed.ed_headp), 1986 (u_long)O32TOH(sed->ed.ed_nexted)); 1987 } 1988 #endif 1989 1990 usbd_status 1991 ohci_open(usbd_pipe_handle pipe) 1992 { 1993 usbd_device_handle dev = pipe->device; 1994 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1995 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1996 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1997 u_int8_t addr = dev->address; 1998 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1999 ohci_soft_ed_t *sed; 2000 ohci_soft_td_t *std; 2001 ohci_soft_itd_t *sitd; 2002 ohci_physaddr_t tdphys; 2003 u_int32_t fmt; 2004 usbd_status err; 2005 int s; 2006 int ival; 2007 2008 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2009 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 2010 2011 if (sc->sc_dying) 2012 return (USBD_IOERROR); 2013 2014 std = NULL; 2015 sed = NULL; 2016 2017 if (addr == sc->sc_addr) { 2018 switch (ed->bEndpointAddress) { 2019 case USB_CONTROL_ENDPOINT: 2020 pipe->methods = &ohci_root_ctrl_methods; 2021 break; 2022 case UE_DIR_IN | OHCI_INTR_ENDPT: 2023 pipe->methods = &ohci_root_intr_methods; 2024 break; 2025 default: 2026 return (USBD_INVAL); 2027 } 2028 } else { 2029 sed = ohci_alloc_sed(sc); 2030 if (sed == NULL) 2031 goto bad0; 2032 opipe->sed = sed; 2033 if (xfertype == UE_ISOCHRONOUS) { 2034 sitd = ohci_alloc_sitd(sc); 2035 if (sitd == NULL) 2036 goto bad1; 2037 opipe->tail.itd = sitd; 2038 tdphys = sitd->physaddr; 2039 fmt = OHCI_ED_FORMAT_ISO; 2040 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 2041 fmt |= OHCI_ED_DIR_IN; 2042 else 2043 fmt |= OHCI_ED_DIR_OUT; 2044 } else { 2045 std = ohci_alloc_std(sc); 2046 if (std == NULL) 2047 goto bad1; 2048 opipe->tail.td = std; 2049 tdphys = std->physaddr; 2050 fmt = OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD; 2051 } 2052 sed->ed.ed_flags = HTOO32( 2053 OHCI_ED_SET_FA(addr) | 2054 OHCI_ED_SET_EN(UE_GET_ADDR(ed->bEndpointAddress)) | 2055 (dev->speed == USB_SPEED_LOW ? OHCI_ED_SPEED : 0) | 2056 fmt | 2057 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 2058 sed->ed.ed_headp = sed->ed.ed_tailp = HTOO32(tdphys); 2059 2060 switch (xfertype) { 2061 case UE_CONTROL: 2062 pipe->methods = &ohci_device_ctrl_methods; 2063 err = usb_allocmem(&sc->sc_bus, 2064 sizeof(usb_device_request_t), 2065 0, &opipe->u.ctl.reqdma); 2066 if (err) 2067 goto bad; 2068 s = splusb(); 2069 ohci_add_ed(sc, sed, sc->sc_ctrl_head); 2070 splx(s); 2071 break; 2072 case UE_INTERRUPT: 2073 pipe->methods = &ohci_device_intr_methods; 2074 ival = pipe->interval; 2075 if (ival == USBD_DEFAULT_INTERVAL) 2076 ival = ed->bInterval; 2077 return (ohci_device_setintr(sc, opipe, ival)); 2078 case UE_ISOCHRONOUS: 2079 pipe->methods = &ohci_device_isoc_methods; 2080 return (ohci_setup_isoc(pipe)); 2081 case UE_BULK: 2082 pipe->methods = &ohci_device_bulk_methods; 2083 s = splusb(); 2084 ohci_add_ed(sc, sed, sc->sc_bulk_head); 2085 splx(s); 2086 break; 2087 } 2088 } 2089 return (USBD_NORMAL_COMPLETION); 2090 2091 bad: 2092 if (std != NULL) 2093 ohci_free_std(sc, std); 2094 bad1: 2095 if (sed != NULL) 2096 ohci_free_sed(sc, sed); 2097 bad0: 2098 return (USBD_NOMEM); 2099 2100 } 2101 2102 /* 2103 * Close a reqular pipe. 2104 * Assumes that there are no pending transactions. 2105 */ 2106 void 2107 ohci_close_pipe(usbd_pipe_handle pipe, ohci_soft_ed_t *head) 2108 { 2109 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2110 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2111 ohci_soft_ed_t *sed = opipe->sed; 2112 int s; 2113 2114 s = splusb(); 2115 #ifdef DIAGNOSTIC 2116 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 2117 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2118 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) { 2119 ohci_soft_td_t *std; 2120 std = ohci_hash_find_td(sc, O32TOH(sed->ed.ed_headp)); 2121 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 2122 "tl=0x%x pipe=%p, std=%p\n", sed, 2123 (int)O32TOH(sed->ed.ed_headp), 2124 (int)O32TOH(sed->ed.ed_tailp), 2125 pipe, std); 2126 #ifdef USB_DEBUG 2127 usbd_dump_pipe(&opipe->pipe); 2128 #endif 2129 #ifdef OHCI_DEBUG 2130 ohci_dump_ed(sc, sed); 2131 if (std) 2132 ohci_dump_td(sc, std); 2133 #endif 2134 usb_delay_ms(&sc->sc_bus, 2); 2135 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 2136 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 2137 printf("ohci_close_pipe: pipe still not empty\n"); 2138 } 2139 #endif 2140 ohci_rem_ed(sed, head); 2141 /* Make sure the host controller is not touching this ED */ 2142 usb_delay_ms(&sc->sc_bus, 1); 2143 splx(s); 2144 ohci_free_sed(sc, opipe->sed); 2145 } 2146 2147 /* 2148 * Abort a device request. 2149 * If this routine is called at splusb() it guarantees that the request 2150 * will be removed from the hardware scheduling and that the callback 2151 * for it will be called with USBD_CANCELLED status. 2152 * It's impossible to guarantee that the requested transfer will not 2153 * have happened since the hardware runs concurrently. 2154 * If the transaction has already happened we rely on the ordinary 2155 * interrupt processing to process it. 2156 */ 2157 void 2158 ohci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2159 { 2160 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2161 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 2162 ohci_soft_ed_t *sed = opipe->sed; 2163 ohci_soft_td_t *p, *n; 2164 ohci_physaddr_t headp; 2165 int s, hit; 2166 int wake; 2167 2168 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p sed=%p\n", xfer, opipe,sed)); 2169 2170 if (sc->sc_dying) { 2171 /* If we're dying, just do the software part. */ 2172 s = splusb(); 2173 xfer->status = status; /* make software ignore it */ 2174 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2175 usb_transfer_complete(xfer); 2176 splx(s); 2177 return; 2178 } 2179 2180 if (xfer->device->bus->intr_context || !curproc) 2181 panic("ohci_abort_xfer: not in process context"); 2182 2183 /* 2184 * If an abort is already in progress then just wait for it to 2185 * complete and return. 2186 */ 2187 if (xfer->hcflags & UXFER_ABORTING) { 2188 DPRINTFN(2, ("ohci_abort_xfer: already aborting\n")); 2189 #ifdef DIAGNOSTIC 2190 if (status == USBD_TIMEOUT) 2191 printf("0hci_abort_xfer: TIMEOUT while aborting\n"); 2192 #endif 2193 /* Override the status which might be USBD_TIMEOUT. */ 2194 xfer->status = status; 2195 DPRINTFN(2, ("ohci_abort_xfer: waiting for abort to finish\n")); 2196 xfer->hcflags |= UXFER_ABORTWAIT; 2197 while (xfer->hcflags & UXFER_ABORTING) 2198 tsleep(&xfer->hcflags, PZERO, "ohciaw", 0); 2199 return; 2200 } 2201 xfer->hcflags |= UXFER_ABORTING; 2202 2203 /* 2204 * Step 1: Make interrupt routine and hardware ignore xfer. 2205 */ 2206 s = splusb(); 2207 xfer->status = status; /* make software ignore it */ 2208 usb_uncallout(xfer->timeout_handle, ohci_timeout, xfer); 2209 splx(s); 2210 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 2211 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 2212 2213 /* 2214 * Step 2: Wait until we know hardware has finished any possible 2215 * use of the xfer. Also make sure the soft interrupt routine 2216 * has run. 2217 */ 2218 usb_delay_ms(opipe->pipe.device->bus, 20); /* Hardware finishes in 1ms */ 2219 s = splusb(); 2220 #ifdef USB_USE_SOFTINTR 2221 sc->sc_softwake = 1; 2222 #endif /* USB_USE_SOFTINTR */ 2223 usb_schedsoftintr(&sc->sc_bus); 2224 #ifdef USB_USE_SOFTINTR 2225 tsleep(&sc->sc_softwake, PZERO, "ohciab", 0); 2226 #endif /* USB_USE_SOFTINTR */ 2227 splx(s); 2228 2229 /* 2230 * Step 3: Remove any vestiges of the xfer from the hardware. 2231 * The complication here is that the hardware may have executed 2232 * beyond the xfer we're trying to abort. So as we're scanning 2233 * the TDs of this xfer we check if the hardware points to 2234 * any of them. 2235 */ 2236 s = splusb(); /* XXX why? */ 2237 p = xfer->hcpriv; 2238 #ifdef DIAGNOSTIC 2239 if (p == NULL) { 2240 xfer->hcflags &= ~UXFER_ABORTING; /* XXX */ 2241 splx(s); 2242 printf("ohci_abort_xfer: hcpriv is NULL\n"); 2243 return; 2244 } 2245 #endif 2246 #ifdef OHCI_DEBUG 2247 if (ohcidebug > 1) { 2248 DPRINTF(("ohci_abort_xfer: sed=\n")); 2249 ohci_dump_ed(sc, sed); 2250 ohci_dump_tds(sc, p); 2251 } 2252 #endif 2253 headp = O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK; 2254 hit = 0; 2255 for (; p->xfer == xfer; p = n) { 2256 hit |= headp == p->physaddr; 2257 n = p->nexttd; 2258 ohci_free_std(sc, p); 2259 } 2260 /* Zap headp register if hardware pointed inside the xfer. */ 2261 if (hit) { 2262 DPRINTFN(1,("ohci_abort_xfer: set hd=0x%08x, tl=0x%08x\n", 2263 (int)p->physaddr, (int)O32TOH(sed->ed.ed_tailp))); 2264 sed->ed.ed_headp = HTOO32(p->physaddr); /* unlink TDs */ 2265 } else { 2266 DPRINTFN(1,("ohci_abort_xfer: no hit\n")); 2267 } 2268 2269 /* 2270 * Step 4: Turn on hardware again. 2271 */ 2272 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 2273 2274 /* 2275 * Step 5: Execute callback. 2276 */ 2277 wake = xfer->hcflags & UXFER_ABORTWAIT; 2278 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 2279 usb_transfer_complete(xfer); 2280 if (wake) 2281 wakeup(&xfer->hcflags); 2282 2283 splx(s); 2284 } 2285 2286 /* 2287 * Data structures and routines to emulate the root hub. 2288 */ 2289 Static usb_device_descriptor_t ohci_devd = { 2290 USB_DEVICE_DESCRIPTOR_SIZE, 2291 UDESC_DEVICE, /* type */ 2292 {0x00, 0x01}, /* USB version */ 2293 UDCLASS_HUB, /* class */ 2294 UDSUBCLASS_HUB, /* subclass */ 2295 UDPROTO_FSHUB, 2296 64, /* max packet */ 2297 {0},{0},{0x00,0x01}, /* device id */ 2298 1,2,0, /* string indicies */ 2299 1 /* # of configurations */ 2300 }; 2301 2302 Static const usb_config_descriptor_t ohci_confd = { 2303 USB_CONFIG_DESCRIPTOR_SIZE, 2304 UDESC_CONFIG, 2305 {USB_CONFIG_DESCRIPTOR_SIZE + 2306 USB_INTERFACE_DESCRIPTOR_SIZE + 2307 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2308 1, 2309 1, 2310 0, 2311 UC_ATTR_MBO | UC_SELF_POWERED, 2312 0 /* max power */ 2313 }; 2314 2315 Static const usb_interface_descriptor_t ohci_ifcd = { 2316 USB_INTERFACE_DESCRIPTOR_SIZE, 2317 UDESC_INTERFACE, 2318 0, 2319 0, 2320 1, 2321 UICLASS_HUB, 2322 UISUBCLASS_HUB, 2323 UIPROTO_FSHUB, 2324 0 2325 }; 2326 2327 Static const usb_endpoint_descriptor_t ohci_endpd = { 2328 .bLength = USB_ENDPOINT_DESCRIPTOR_SIZE, 2329 .bDescriptorType = UDESC_ENDPOINT, 2330 .bEndpointAddress = UE_DIR_IN | OHCI_INTR_ENDPT, 2331 .bmAttributes = UE_INTERRUPT, 2332 .wMaxPacketSize = {8, 0}, /* max packet */ 2333 .bInterval = 255, 2334 }; 2335 2336 Static const usb_hub_descriptor_t ohci_hubd = { 2337 .bDescLength = USB_HUB_DESCRIPTOR_SIZE, 2338 .bDescriptorType = UDESC_HUB, 2339 }; 2340 2341 Static int 2342 ohci_str(usb_string_descriptor_t *p, int l, const char *s) 2343 { 2344 int i; 2345 2346 if (l == 0) 2347 return (0); 2348 p->bLength = 2 * strlen(s) + 2; 2349 if (l == 1) 2350 return (1); 2351 p->bDescriptorType = UDESC_STRING; 2352 l -= 2; 2353 for (i = 0; s[i] && l > 1; i++, l -= 2) 2354 USETW2(p->bString[i], 0, s[i]); 2355 return (2*i+2); 2356 } 2357 2358 /* 2359 * Simulate a hardware hub by handling all the necessary requests. 2360 */ 2361 Static usbd_status 2362 ohci_root_ctrl_transfer(usbd_xfer_handle xfer) 2363 { 2364 usbd_status err; 2365 2366 /* Insert last in queue. */ 2367 err = usb_insert_transfer(xfer); 2368 if (err) 2369 return (err); 2370 2371 /* Pipe isn't running, start first */ 2372 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2373 } 2374 2375 Static usbd_status 2376 ohci_root_ctrl_start(usbd_xfer_handle xfer) 2377 { 2378 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2379 usb_device_request_t *req; 2380 void *buf = NULL; 2381 int port, i; 2382 int s, len, value, index, l, totlen = 0; 2383 usb_port_status_t ps; 2384 usb_hub_descriptor_t hubd; 2385 usbd_status err; 2386 u_int32_t v; 2387 2388 if (sc->sc_dying) 2389 return (USBD_IOERROR); 2390 2391 #ifdef DIAGNOSTIC 2392 if (!(xfer->rqflags & URQ_REQUEST)) 2393 /* XXX panic */ 2394 return (USBD_INVAL); 2395 #endif 2396 req = &xfer->request; 2397 2398 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 2399 req->bmRequestType, req->bRequest)); 2400 2401 len = UGETW(req->wLength); 2402 value = UGETW(req->wValue); 2403 index = UGETW(req->wIndex); 2404 2405 if (len != 0) 2406 buf = KERNADDR(&xfer->dmabuf, 0); 2407 2408 #define C(x,y) ((x) | ((y) << 8)) 2409 switch(C(req->bRequest, req->bmRequestType)) { 2410 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2411 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2412 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2413 /* 2414 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2415 * for the integrated root hub. 2416 */ 2417 break; 2418 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2419 if (len > 0) { 2420 *(u_int8_t *)buf = sc->sc_conf; 2421 totlen = 1; 2422 } 2423 break; 2424 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2425 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 2426 if (len == 0) 2427 break; 2428 switch(value >> 8) { 2429 case UDESC_DEVICE: 2430 if ((value & 0xff) != 0) { 2431 err = USBD_IOERROR; 2432 goto ret; 2433 } 2434 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2435 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 2436 memcpy(buf, &ohci_devd, l); 2437 break; 2438 case UDESC_CONFIG: 2439 if ((value & 0xff) != 0) { 2440 err = USBD_IOERROR; 2441 goto ret; 2442 } 2443 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2444 memcpy(buf, &ohci_confd, l); 2445 buf = (char *)buf + l; 2446 len -= l; 2447 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2448 totlen += l; 2449 memcpy(buf, &ohci_ifcd, l); 2450 buf = (char *)buf + l; 2451 len -= l; 2452 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2453 totlen += l; 2454 memcpy(buf, &ohci_endpd, l); 2455 break; 2456 case UDESC_STRING: 2457 *(u_int8_t *)buf = 0; 2458 totlen = 1; 2459 switch (value & 0xff) { 2460 case 0: /* Language table */ 2461 if (len > 0) 2462 *(u_int8_t *)buf = 4; 2463 if (len >= 4) { 2464 USETW(((usb_string_descriptor_t *)buf)->bString[0], 0x0409); 2465 totlen = 4; 2466 } 2467 break; 2468 case 1: /* Vendor */ 2469 totlen = ohci_str(buf, len, sc->sc_vendor); 2470 break; 2471 case 2: /* Product */ 2472 totlen = ohci_str(buf, len, "OHCI root hub"); 2473 break; 2474 } 2475 break; 2476 default: 2477 err = USBD_IOERROR; 2478 goto ret; 2479 } 2480 break; 2481 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2482 if (len > 0) { 2483 *(u_int8_t *)buf = 0; 2484 totlen = 1; 2485 } 2486 break; 2487 case C(UR_GET_STATUS, UT_READ_DEVICE): 2488 if (len > 1) { 2489 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2490 totlen = 2; 2491 } 2492 break; 2493 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2494 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2495 if (len > 1) { 2496 USETW(((usb_status_t *)buf)->wStatus, 0); 2497 totlen = 2; 2498 } 2499 break; 2500 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2501 if (value >= USB_MAX_DEVICES) { 2502 err = USBD_IOERROR; 2503 goto ret; 2504 } 2505 sc->sc_addr = value; 2506 break; 2507 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2508 if (value != 0 && value != 1) { 2509 err = USBD_IOERROR; 2510 goto ret; 2511 } 2512 sc->sc_conf = value; 2513 break; 2514 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2515 break; 2516 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2517 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2518 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2519 err = USBD_IOERROR; 2520 goto ret; 2521 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2522 break; 2523 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2524 break; 2525 /* Hub requests */ 2526 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2527 break; 2528 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2529 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2530 "port=%d feature=%d\n", 2531 index, value)); 2532 if (index < 1 || index > sc->sc_noport) { 2533 err = USBD_IOERROR; 2534 goto ret; 2535 } 2536 port = OHCI_RH_PORT_STATUS(index); 2537 switch(value) { 2538 case UHF_PORT_ENABLE: 2539 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2540 break; 2541 case UHF_PORT_SUSPEND: 2542 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2543 break; 2544 case UHF_PORT_POWER: 2545 /* Yes, writing to the LOW_SPEED bit clears power. */ 2546 OWRITE4(sc, port, UPS_LOW_SPEED); 2547 break; 2548 case UHF_C_PORT_CONNECTION: 2549 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2550 break; 2551 case UHF_C_PORT_ENABLE: 2552 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2553 break; 2554 case UHF_C_PORT_SUSPEND: 2555 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2556 break; 2557 case UHF_C_PORT_OVER_CURRENT: 2558 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2559 break; 2560 case UHF_C_PORT_RESET: 2561 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2562 break; 2563 default: 2564 err = USBD_IOERROR; 2565 goto ret; 2566 } 2567 switch(value) { 2568 case UHF_C_PORT_CONNECTION: 2569 case UHF_C_PORT_ENABLE: 2570 case UHF_C_PORT_SUSPEND: 2571 case UHF_C_PORT_OVER_CURRENT: 2572 case UHF_C_PORT_RESET: 2573 /* Enable RHSC interrupt if condition is cleared. */ 2574 if ((OREAD4(sc, port) >> 16) == 0) 2575 ohci_rhsc_enable(sc); 2576 break; 2577 default: 2578 break; 2579 } 2580 break; 2581 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2582 if (len == 0) 2583 break; 2584 if ((value & 0xff) != 0) { 2585 err = USBD_IOERROR; 2586 goto ret; 2587 } 2588 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2589 hubd = ohci_hubd; 2590 hubd.bNbrPorts = sc->sc_noport; 2591 USETW(hubd.wHubCharacteristics, 2592 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2593 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2594 /* XXX overcurrent */ 2595 ); 2596 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2597 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2598 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2599 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2600 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2601 l = min(len, hubd.bDescLength); 2602 totlen = l; 2603 memcpy(buf, &hubd, l); 2604 break; 2605 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2606 if (len != 4) { 2607 err = USBD_IOERROR; 2608 goto ret; 2609 } 2610 memset(buf, 0, len); /* ? XXX */ 2611 totlen = len; 2612 break; 2613 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2614 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2615 index)); 2616 if (index < 1 || index > sc->sc_noport) { 2617 err = USBD_IOERROR; 2618 goto ret; 2619 } 2620 if (len != 4) { 2621 err = USBD_IOERROR; 2622 goto ret; 2623 } 2624 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2625 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2626 v)); 2627 USETW(ps.wPortStatus, v); 2628 USETW(ps.wPortChange, v >> 16); 2629 l = min(len, sizeof ps); 2630 memcpy(buf, &ps, l); 2631 totlen = l; 2632 break; 2633 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2634 err = USBD_IOERROR; 2635 goto ret; 2636 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2637 break; 2638 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2639 if (index < 1 || index > sc->sc_noport) { 2640 err = USBD_IOERROR; 2641 goto ret; 2642 } 2643 port = OHCI_RH_PORT_STATUS(index); 2644 switch(value) { 2645 case UHF_PORT_ENABLE: 2646 OWRITE4(sc, port, UPS_PORT_ENABLED); 2647 break; 2648 case UHF_PORT_SUSPEND: 2649 OWRITE4(sc, port, UPS_SUSPEND); 2650 break; 2651 case UHF_PORT_RESET: 2652 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2653 index)); 2654 OWRITE4(sc, port, UPS_RESET); 2655 for (i = 0; i < 5; i++) { 2656 usb_delay_ms(&sc->sc_bus, 2657 USB_PORT_ROOT_RESET_DELAY); 2658 if (sc->sc_dying) { 2659 err = USBD_IOERROR; 2660 goto ret; 2661 } 2662 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2663 break; 2664 } 2665 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2666 index, OREAD4(sc, port))); 2667 break; 2668 case UHF_PORT_POWER: 2669 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2670 "%d\n", index)); 2671 OWRITE4(sc, port, UPS_PORT_POWER); 2672 break; 2673 default: 2674 err = USBD_IOERROR; 2675 goto ret; 2676 } 2677 break; 2678 default: 2679 err = USBD_IOERROR; 2680 goto ret; 2681 } 2682 xfer->actlen = totlen; 2683 err = USBD_NORMAL_COMPLETION; 2684 ret: 2685 xfer->status = err; 2686 s = splusb(); 2687 usb_transfer_complete(xfer); 2688 splx(s); 2689 return (USBD_IN_PROGRESS); 2690 } 2691 2692 /* Abort a root control request. */ 2693 Static void 2694 ohci_root_ctrl_abort(usbd_xfer_handle xfer) 2695 { 2696 /* Nothing to do, all transfers are synchronous. */ 2697 } 2698 2699 /* Close the root pipe. */ 2700 Static void 2701 ohci_root_ctrl_close(usbd_pipe_handle pipe) 2702 { 2703 DPRINTF(("ohci_root_ctrl_close\n")); 2704 /* Nothing to do. */ 2705 } 2706 2707 Static usbd_status 2708 ohci_root_intr_transfer(usbd_xfer_handle xfer) 2709 { 2710 usbd_status err; 2711 2712 /* Insert last in queue. */ 2713 err = usb_insert_transfer(xfer); 2714 if (err) 2715 return (err); 2716 2717 /* Pipe isn't running, start first */ 2718 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2719 } 2720 2721 Static usbd_status 2722 ohci_root_intr_start(usbd_xfer_handle xfer) 2723 { 2724 usbd_pipe_handle pipe = xfer->pipe; 2725 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2726 2727 if (sc->sc_dying) 2728 return (USBD_IOERROR); 2729 2730 sc->sc_intrxfer = xfer; 2731 2732 return (USBD_IN_PROGRESS); 2733 } 2734 2735 /* Abort a root interrupt request. */ 2736 Static void 2737 ohci_root_intr_abort(usbd_xfer_handle xfer) 2738 { 2739 int s; 2740 2741 if (xfer->pipe->intrxfer == xfer) { 2742 DPRINTF(("ohci_root_intr_abort: remove\n")); 2743 xfer->pipe->intrxfer = NULL; 2744 } 2745 xfer->status = USBD_CANCELLED; 2746 s = splusb(); 2747 usb_transfer_complete(xfer); 2748 splx(s); 2749 } 2750 2751 /* Close the root pipe. */ 2752 Static void 2753 ohci_root_intr_close(usbd_pipe_handle pipe) 2754 { 2755 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2756 2757 DPRINTF(("ohci_root_intr_close\n")); 2758 2759 sc->sc_intrxfer = NULL; 2760 } 2761 2762 /************************/ 2763 2764 Static usbd_status 2765 ohci_device_ctrl_transfer(usbd_xfer_handle xfer) 2766 { 2767 usbd_status err; 2768 2769 /* Insert last in queue. */ 2770 err = usb_insert_transfer(xfer); 2771 if (err) 2772 return (err); 2773 2774 /* Pipe isn't running, start first */ 2775 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2776 } 2777 2778 Static usbd_status 2779 ohci_device_ctrl_start(usbd_xfer_handle xfer) 2780 { 2781 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2782 usbd_status err; 2783 2784 if (sc->sc_dying) 2785 return (USBD_IOERROR); 2786 2787 #ifdef DIAGNOSTIC 2788 if (!(xfer->rqflags & URQ_REQUEST)) { 2789 /* XXX panic */ 2790 printf("ohci_device_ctrl_transfer: not a request\n"); 2791 return (USBD_INVAL); 2792 } 2793 #endif 2794 2795 err = ohci_device_request(xfer); 2796 if (err) 2797 return (err); 2798 2799 if (sc->sc_bus.use_polling) 2800 ohci_waitintr(sc, xfer); 2801 return (USBD_IN_PROGRESS); 2802 } 2803 2804 /* Abort a device control request. */ 2805 Static void 2806 ohci_device_ctrl_abort(usbd_xfer_handle xfer) 2807 { 2808 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2809 ohci_abort_xfer(xfer, USBD_CANCELLED); 2810 } 2811 2812 /* Close a device control pipe. */ 2813 Static void 2814 ohci_device_ctrl_close(usbd_pipe_handle pipe) 2815 { 2816 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2817 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2818 2819 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2820 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2821 ohci_free_std(sc, opipe->tail.td); 2822 } 2823 2824 /************************/ 2825 2826 Static void 2827 ohci_device_clear_toggle(usbd_pipe_handle pipe) 2828 { 2829 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2830 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2831 2832 opipe->sed->ed.ed_headp &= HTOO32(~OHCI_TOGGLECARRY); 2833 } 2834 2835 Static void 2836 ohci_noop(usbd_pipe_handle pipe) 2837 { 2838 } 2839 2840 Static usbd_status 2841 ohci_device_bulk_transfer(usbd_xfer_handle xfer) 2842 { 2843 usbd_status err; 2844 2845 /* Insert last in queue. */ 2846 err = usb_insert_transfer(xfer); 2847 if (err) 2848 return (err); 2849 2850 /* Pipe isn't running, start first */ 2851 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2852 } 2853 2854 Static usbd_status 2855 ohci_device_bulk_start(usbd_xfer_handle xfer) 2856 { 2857 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2858 usbd_device_handle dev = opipe->pipe.device; 2859 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2860 int addr = dev->address; 2861 ohci_soft_td_t *data, *tail, *tdp; 2862 ohci_soft_ed_t *sed; 2863 int s, len, isread, endpt; 2864 usbd_status err; 2865 2866 if (sc->sc_dying) 2867 return (USBD_IOERROR); 2868 2869 #ifdef DIAGNOSTIC 2870 if (xfer->rqflags & URQ_REQUEST) { 2871 /* XXX panic */ 2872 printf("ohci_device_bulk_start: a request\n"); 2873 return (USBD_INVAL); 2874 } 2875 #endif 2876 2877 len = xfer->length; 2878 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2879 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2880 sed = opipe->sed; 2881 2882 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2883 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2884 endpt)); 2885 2886 opipe->u.bulk.isread = isread; 2887 opipe->u.bulk.length = len; 2888 2889 /* Update device address */ 2890 sed->ed.ed_flags = HTOO32( 2891 (O32TOH(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2892 OHCI_ED_SET_FA(addr)); 2893 2894 /* Allocate a chain of new TDs (including a new tail). */ 2895 data = opipe->tail.td; 2896 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer, 2897 data, &tail); 2898 /* We want interrupt at the end of the transfer. */ 2899 tail->td.td_flags &= HTOO32(~OHCI_TD_INTR_MASK); 2900 tail->td.td_flags |= HTOO32(OHCI_TD_SET_DI(1)); 2901 tail->flags |= OHCI_CALL_DONE; 2902 tail = tail->nexttd; /* point at sentinel */ 2903 if (err) 2904 return (err); 2905 2906 tail->xfer = NULL; 2907 xfer->hcpriv = data; 2908 2909 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2910 "td_cbp=0x%08x td_be=0x%08x\n", 2911 (int)O32TOH(sed->ed.ed_flags), 2912 (int)O32TOH(data->td.td_flags), 2913 (int)O32TOH(data->td.td_cbp), 2914 (int)O32TOH(data->td.td_be))); 2915 2916 #ifdef OHCI_DEBUG 2917 if (ohcidebug > 5) { 2918 ohci_dump_ed(sc, sed); 2919 ohci_dump_tds(sc, data); 2920 } 2921 #endif 2922 2923 /* Insert ED in schedule */ 2924 s = splusb(); 2925 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2926 tdp->xfer = xfer; 2927 } 2928 sed->ed.ed_tailp = HTOO32(tail->physaddr); 2929 opipe->tail.td = tail; 2930 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 2931 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2932 if (xfer->timeout && !sc->sc_bus.use_polling) { 2933 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2934 ohci_timeout, xfer); 2935 } 2936 2937 #if 0 2938 /* This goes wrong if we are too slow. */ 2939 if (ohcidebug > 10) { 2940 delay(10000); 2941 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2942 OREAD4(sc, OHCI_COMMAND_STATUS))); 2943 ohci_dump_ed(sc, sed); 2944 ohci_dump_tds(sc, data); 2945 } 2946 #endif 2947 2948 splx(s); 2949 2950 return (USBD_IN_PROGRESS); 2951 } 2952 2953 Static void 2954 ohci_device_bulk_abort(usbd_xfer_handle xfer) 2955 { 2956 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2957 ohci_abort_xfer(xfer, USBD_CANCELLED); 2958 } 2959 2960 /* 2961 * Close a device bulk pipe. 2962 */ 2963 Static void 2964 ohci_device_bulk_close(usbd_pipe_handle pipe) 2965 { 2966 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2967 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2968 2969 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2970 ohci_close_pipe(pipe, sc->sc_bulk_head); 2971 ohci_free_std(sc, opipe->tail.td); 2972 } 2973 2974 /************************/ 2975 2976 Static usbd_status 2977 ohci_device_intr_transfer(usbd_xfer_handle xfer) 2978 { 2979 usbd_status err; 2980 2981 /* Insert last in queue. */ 2982 err = usb_insert_transfer(xfer); 2983 if (err) 2984 return (err); 2985 2986 /* Pipe isn't running, start first */ 2987 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2988 } 2989 2990 Static usbd_status 2991 ohci_device_intr_start(usbd_xfer_handle xfer) 2992 { 2993 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2994 usbd_device_handle dev = opipe->pipe.device; 2995 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2996 ohci_soft_ed_t *sed = opipe->sed; 2997 ohci_soft_td_t *data, *tail; 2998 int s, len, isread, endpt; 2999 3000 if (sc->sc_dying) 3001 return (USBD_IOERROR); 3002 3003 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 3004 "flags=%d priv=%p\n", 3005 xfer, xfer->length, xfer->flags, xfer->priv)); 3006 3007 #ifdef DIAGNOSTIC 3008 if (xfer->rqflags & URQ_REQUEST) 3009 panic("ohci_device_intr_transfer: a request"); 3010 #endif 3011 3012 len = xfer->length; 3013 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 3014 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 3015 3016 data = opipe->tail.td; 3017 tail = ohci_alloc_std(sc); 3018 if (tail == NULL) 3019 return (USBD_NOMEM); 3020 tail->xfer = NULL; 3021 3022 data->td.td_flags = HTOO32( 3023 isread ? OHCI_TD_IN : OHCI_TD_OUT | 3024 OHCI_TD_NOCC | 3025 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 3026 if (xfer->flags & USBD_SHORT_XFER_OK) 3027 data->td.td_flags |= HTOO32(OHCI_TD_R); 3028 data->td.td_cbp = HTOO32(DMAADDR(&xfer->dmabuf, 0)); 3029 data->nexttd = tail; 3030 data->td.td_nexttd = HTOO32(tail->physaddr); 3031 data->td.td_be = HTOO32(O32TOH(data->td.td_cbp) + len - 1); 3032 data->len = len; 3033 data->xfer = xfer; 3034 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 3035 xfer->hcpriv = data; 3036 3037 #ifdef OHCI_DEBUG 3038 if (ohcidebug > 5) { 3039 DPRINTF(("ohci_device_intr_transfer:\n")); 3040 ohci_dump_ed(sc, sed); 3041 ohci_dump_tds(sc, data); 3042 } 3043 #endif 3044 3045 /* Insert ED in schedule */ 3046 s = splusb(); 3047 sed->ed.ed_tailp = HTOO32(tail->physaddr); 3048 opipe->tail.td = tail; 3049 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3050 3051 #if 0 3052 /* 3053 * This goes horribly wrong, printing thousands of descriptors, 3054 * because false references are followed due to the fact that the 3055 * TD is gone. 3056 */ 3057 if (ohcidebug > 5) { 3058 usb_delay_ms(&sc->sc_bus, 5); 3059 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 3060 OREAD4(sc, OHCI_COMMAND_STATUS))); 3061 ohci_dump_ed(sc, sed); 3062 ohci_dump_tds(sc, data); 3063 } 3064 #endif 3065 splx(s); 3066 3067 return (USBD_IN_PROGRESS); 3068 } 3069 3070 /* Abort a device control request. */ 3071 Static void 3072 ohci_device_intr_abort(usbd_xfer_handle xfer) 3073 { 3074 if (xfer->pipe->intrxfer == xfer) { 3075 DPRINTF(("ohci_device_intr_abort: remove\n")); 3076 xfer->pipe->intrxfer = NULL; 3077 } 3078 ohci_abort_xfer(xfer, USBD_CANCELLED); 3079 } 3080 3081 /* Close a device interrupt pipe. */ 3082 Static void 3083 ohci_device_intr_close(usbd_pipe_handle pipe) 3084 { 3085 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3086 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3087 int nslots = opipe->u.intr.nslots; 3088 int pos = opipe->u.intr.pos; 3089 int j; 3090 ohci_soft_ed_t *p, *sed = opipe->sed; 3091 int s; 3092 3093 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 3094 pipe, nslots, pos)); 3095 s = splusb(); 3096 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); 3097 if ((O32TOH(sed->ed.ed_tailp) & OHCI_HEADMASK) != 3098 (O32TOH(sed->ed.ed_headp) & OHCI_HEADMASK)) 3099 usb_delay_ms(&sc->sc_bus, 2); 3100 3101 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 3102 continue; 3103 #ifdef DIAGNOSTIC 3104 if (p == NULL) 3105 panic("ohci_device_intr_close: ED not found"); 3106 #endif 3107 p->next = sed->next; 3108 p->ed.ed_nexted = sed->ed.ed_nexted; 3109 splx(s); 3110 3111 for (j = 0; j < nslots; j++) 3112 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 3113 3114 ohci_free_std(sc, opipe->tail.td); 3115 ohci_free_sed(sc, opipe->sed); 3116 } 3117 3118 Static usbd_status 3119 ohci_device_setintr(ohci_softc_t *sc, struct ohci_pipe *opipe, int ival) 3120 { 3121 int i, j, s, best; 3122 u_int npoll, slow, shigh, nslots; 3123 u_int bestbw, bw; 3124 ohci_soft_ed_t *hsed, *sed = opipe->sed; 3125 3126 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 3127 if (ival == 0) { 3128 printf("ohci_setintr: 0 interval\n"); 3129 return (USBD_INVAL); 3130 } 3131 3132 npoll = OHCI_NO_INTRS; 3133 while (npoll > ival) 3134 npoll /= 2; 3135 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 3136 3137 /* 3138 * We now know which level in the tree the ED must go into. 3139 * Figure out which slot has most bandwidth left over. 3140 * Slots to examine: 3141 * npoll 3142 * 1 0 3143 * 2 1 2 3144 * 4 3 4 5 6 3145 * 8 7 8 9 10 11 12 13 14 3146 * N (N-1) .. (N-1+N-1) 3147 */ 3148 slow = npoll-1; 3149 shigh = slow + npoll; 3150 nslots = OHCI_NO_INTRS / npoll; 3151 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 3152 bw = 0; 3153 for (j = 0; j < nslots; j++) 3154 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 3155 if (bw < bestbw) { 3156 best = i; 3157 bestbw = bw; 3158 } 3159 } 3160 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 3161 best, slow, shigh, bestbw)); 3162 3163 s = splusb(); 3164 hsed = sc->sc_eds[best]; 3165 sed->next = hsed->next; 3166 sed->ed.ed_nexted = hsed->ed.ed_nexted; 3167 hsed->next = sed; 3168 hsed->ed.ed_nexted = HTOO32(sed->physaddr); 3169 splx(s); 3170 3171 for (j = 0; j < nslots; j++) 3172 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 3173 opipe->u.intr.nslots = nslots; 3174 opipe->u.intr.pos = best; 3175 3176 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 3177 return (USBD_NORMAL_COMPLETION); 3178 } 3179 3180 /***********************/ 3181 3182 usbd_status 3183 ohci_device_isoc_transfer(usbd_xfer_handle xfer) 3184 { 3185 usbd_status err; 3186 3187 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 3188 3189 /* Put it on our queue, */ 3190 err = usb_insert_transfer(xfer); 3191 3192 /* bail out on error, */ 3193 if (err && err != USBD_IN_PROGRESS) 3194 return (err); 3195 3196 /* XXX should check inuse here */ 3197 3198 /* insert into schedule, */ 3199 ohci_device_isoc_enter(xfer); 3200 3201 /* and start if the pipe wasn't running */ 3202 if (!err) 3203 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 3204 3205 return (err); 3206 } 3207 3208 void 3209 ohci_device_isoc_enter(usbd_xfer_handle xfer) 3210 { 3211 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3212 usbd_device_handle dev = opipe->pipe.device; 3213 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 3214 ohci_soft_ed_t *sed = opipe->sed; 3215 struct iso *iso = &opipe->u.iso; 3216 ohci_soft_itd_t *sitd, *nsitd; 3217 ohci_physaddr_t buf, offs, noffs, bp0; 3218 int i, ncur, nframes; 3219 int s; 3220 3221 DPRINTFN(1,("ohci_device_isoc_enter: used=%d next=%d xfer=%p " 3222 "nframes=%d\n", 3223 iso->inuse, iso->next, xfer, xfer->nframes)); 3224 3225 if (sc->sc_dying) 3226 return; 3227 3228 if (iso->next == -1) { 3229 /* Not in use yet, schedule it a few frames ahead. */ 3230 iso->next = O32TOH(sc->sc_hcca->hcca_frame_number) + 5; 3231 DPRINTFN(2,("ohci_device_isoc_enter: start next=%d\n", 3232 iso->next)); 3233 } 3234 3235 sitd = opipe->tail.itd; 3236 buf = DMAADDR(&xfer->dmabuf, 0); 3237 bp0 = OHCI_PAGE(buf); 3238 offs = OHCI_PAGE_OFFSET(buf); 3239 nframes = xfer->nframes; 3240 xfer->hcpriv = sitd; 3241 for (i = ncur = 0; i < nframes; i++, ncur++) { 3242 noffs = offs + xfer->frlengths[i]; 3243 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 3244 OHCI_PAGE(buf + noffs) > bp0 + OHCI_PAGE_SIZE) { /* too many page crossings */ 3245 3246 /* Allocate next ITD */ 3247 nsitd = ohci_alloc_sitd(sc); 3248 if (nsitd == NULL) { 3249 /* XXX what now? */ 3250 printf("%s: isoc TD alloc failed\n", 3251 USBDEVNAME(sc->sc_bus.bdev)); 3252 return; 3253 } 3254 3255 /* Fill current ITD */ 3256 sitd->itd.itd_flags = HTOO32( 3257 OHCI_ITD_NOCC | 3258 OHCI_ITD_SET_SF(iso->next) | 3259 OHCI_ITD_SET_DI(6) | /* delay intr a little */ 3260 OHCI_ITD_SET_FC(ncur)); 3261 sitd->itd.itd_bp0 = HTOO32(bp0); 3262 sitd->nextitd = nsitd; 3263 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3264 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3265 sitd->xfer = xfer; 3266 sitd->flags = 0; 3267 3268 sitd = nsitd; 3269 iso->next = iso->next + ncur; 3270 bp0 = OHCI_PAGE(buf + offs); 3271 ncur = 0; 3272 } 3273 sitd->itd.itd_offset[ncur] = HTOO16(OHCI_ITD_MK_OFFS(offs)); 3274 offs = noffs; 3275 } 3276 nsitd = ohci_alloc_sitd(sc); 3277 if (nsitd == NULL) { 3278 /* XXX what now? */ 3279 printf("%s: isoc TD alloc failed\n", 3280 USBDEVNAME(sc->sc_bus.bdev)); 3281 return; 3282 } 3283 /* Fixup last used ITD */ 3284 sitd->itd.itd_flags = HTOO32( 3285 OHCI_ITD_NOCC | 3286 OHCI_ITD_SET_SF(iso->next) | 3287 OHCI_ITD_SET_DI(0) | 3288 OHCI_ITD_SET_FC(ncur)); 3289 sitd->itd.itd_bp0 = HTOO32(bp0); 3290 sitd->nextitd = nsitd; 3291 sitd->itd.itd_nextitd = HTOO32(nsitd->physaddr); 3292 sitd->itd.itd_be = HTOO32(bp0 + offs - 1); 3293 sitd->xfer = xfer; 3294 sitd->flags = OHCI_CALL_DONE; 3295 3296 iso->next = iso->next + ncur; 3297 iso->inuse += nframes; 3298 3299 xfer->actlen = offs; /* XXX pretend we did it all */ 3300 3301 xfer->status = USBD_IN_PROGRESS; 3302 3303 #ifdef OHCI_DEBUG 3304 if (ohcidebug > 5) { 3305 DPRINTF(("ohci_device_isoc_enter: frame=%d\n", 3306 O32TOH(sc->sc_hcca->hcca_frame_number))); 3307 ohci_dump_itds(sc, xfer->hcpriv); 3308 ohci_dump_ed(sc, sed); 3309 } 3310 #endif 3311 3312 s = splusb(); 3313 sed->ed.ed_tailp = HTOO32(nsitd->physaddr); 3314 opipe->tail.itd = nsitd; 3315 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); 3316 splx(s); 3317 3318 #ifdef OHCI_DEBUG 3319 if (ohcidebug > 5) { 3320 delay(150000); 3321 DPRINTF(("ohci_device_isoc_enter: after frame=%d\n", 3322 O32TOH(sc->sc_hcca->hcca_frame_number))); 3323 ohci_dump_itds(sc, xfer->hcpriv); 3324 ohci_dump_ed(sc, sed); 3325 } 3326 #endif 3327 } 3328 3329 usbd_status 3330 ohci_device_isoc_start(usbd_xfer_handle xfer) 3331 { 3332 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3333 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3334 3335 DPRINTFN(5,("ohci_device_isoc_start: xfer=%p\n", xfer)); 3336 3337 if (sc->sc_dying) 3338 return (USBD_IOERROR); 3339 3340 #ifdef DIAGNOSTIC 3341 if (xfer->status != USBD_IN_PROGRESS) 3342 printf("ohci_device_isoc_start: not in progress %p\n", xfer); 3343 #endif 3344 3345 /* XXX anything to do? */ 3346 3347 return (USBD_IN_PROGRESS); 3348 } 3349 3350 void 3351 ohci_device_isoc_abort(usbd_xfer_handle xfer) 3352 { 3353 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 3354 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 3355 ohci_soft_ed_t *sed; 3356 ohci_soft_itd_t *sitd; 3357 int s; 3358 3359 s = splusb(); 3360 3361 DPRINTFN(1,("ohci_device_isoc_abort: xfer=%p\n", xfer)); 3362 3363 /* Transfer is already done. */ 3364 if (xfer->status != USBD_NOT_STARTED && 3365 xfer->status != USBD_IN_PROGRESS) { 3366 splx(s); 3367 printf("ohci_device_isoc_abort: early return\n"); 3368 return; 3369 } 3370 3371 /* Give xfer the requested abort code. */ 3372 xfer->status = USBD_CANCELLED; 3373 3374 sed = opipe->sed; 3375 sed->ed.ed_flags |= HTOO32(OHCI_ED_SKIP); /* force hardware skip */ 3376 3377 sitd = xfer->hcpriv; 3378 #ifdef DIAGNOSTIC 3379 if (sitd == NULL) { 3380 splx(s); 3381 printf("ohci_device_isoc_abort: hcpriv==0\n"); 3382 return; 3383 } 3384 #endif 3385 for (; sitd->xfer == xfer; sitd = sitd->nextitd) { 3386 #ifdef DIAGNOSTIC 3387 DPRINTFN(1,("abort sets done sitd=%p\n", sitd)); 3388 sitd->isdone = 1; 3389 #endif 3390 } 3391 3392 splx(s); 3393 3394 usb_delay_ms(&sc->sc_bus, OHCI_ITD_NOFFSET); 3395 3396 s = splusb(); 3397 3398 /* Run callback. */ 3399 usb_transfer_complete(xfer); 3400 3401 sed->ed.ed_headp = HTOO32(sitd->physaddr); /* unlink TDs */ 3402 sed->ed.ed_flags &= HTOO32(~OHCI_ED_SKIP); /* remove hardware skip */ 3403 3404 splx(s); 3405 } 3406 3407 void 3408 ohci_device_isoc_done(usbd_xfer_handle xfer) 3409 { 3410 DPRINTFN(1,("ohci_device_isoc_done: xfer=%p\n", xfer)); 3411 } 3412 3413 usbd_status 3414 ohci_setup_isoc(usbd_pipe_handle pipe) 3415 { 3416 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3417 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3418 struct iso *iso = &opipe->u.iso; 3419 int s; 3420 3421 iso->next = -1; 3422 iso->inuse = 0; 3423 3424 s = splusb(); 3425 ohci_add_ed(sc, opipe->sed, sc->sc_isoc_head); 3426 splx(s); 3427 3428 return (USBD_NORMAL_COMPLETION); 3429 } 3430 3431 void 3432 ohci_device_isoc_close(usbd_pipe_handle pipe) 3433 { 3434 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 3435 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 3436 3437 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 3438 ohci_close_pipe(pipe, sc->sc_isoc_head); 3439 #ifdef DIAGNOSTIC 3440 opipe->tail.itd->isdone = 1; 3441 #endif 3442 ohci_free_sitd(sc, opipe->tail.itd); 3443 } 3444
Indexes created Fri Oct 03 02:09:57 GMT 2025