ohci.c revision 1.68
1 /* $NetBSD: ohci.c,v 1.68 2000/01/31 20:17:25 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Open Host Controller driver. 43 * 44 * OHCI spec: ftp://ftp.compaq.com/pub/supportinformation/papers/hcir1_0a.exe 45 * USB spec: http://www.usb.org/developers/data/usb11.pdf 46 */ 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/malloc.h> 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <sys/kernel.h> 53 #include <sys/device.h> 54 #include <sys/select.h> 55 #elif defined(__FreeBSD__) 56 #include <sys/module.h> 57 #include <sys/bus.h> 58 #include <machine/bus_pio.h> 59 #include <machine/bus_memio.h> 60 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 61 #include <machine/cpu.h> 62 #endif 63 #endif 64 #include <sys/proc.h> 65 #include <sys/queue.h> 66 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/ohcireg.h> 77 #include <dev/usb/ohcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #if defined(__OpenBSD__) 86 struct cfdriver ohci_cd = { 87 NULL, "ohci", DV_DULL 88 }; 89 #endif 90 91 #ifdef OHCI_DEBUG 92 #define DPRINTF(x) if (ohcidebug) logprintf x 93 #define DPRINTFN(n,x) if (ohcidebug>(n)) logprintf x 94 int ohcidebug = 0; 95 #else 96 #define DPRINTF(x) 97 #define DPRINTFN(n,x) 98 #endif 99 100 /* 101 * The OHCI controller is little endian, so on big endian machines 102 * the data strored in memory needs to be swapped. 103 */ 104 #if BYTE_ORDER == BIG_ENDIAN 105 #define LE(x) (bswap32(x)) 106 #else 107 #define LE(x) (x) 108 #endif 109 110 struct ohci_pipe; 111 112 static ohci_soft_ed_t *ohci_alloc_sed __P((ohci_softc_t *)); 113 static void ohci_free_sed __P((ohci_softc_t *, ohci_soft_ed_t *)); 114 115 static ohci_soft_td_t *ohci_alloc_std __P((ohci_softc_t *)); 116 static void ohci_free_std __P((ohci_softc_t *, ohci_soft_td_t *)); 117 118 static ohci_soft_itd_t *ohci_alloc_sitd __P((ohci_softc_t *)); 119 static void ohci_free_sitd __P((ohci_softc_t *,ohci_soft_itd_t *)); 120 121 #if 0 122 static void ohci_free_std_chain __P((ohci_softc_t *, 123 ohci_soft_td_t *, ohci_soft_td_t *)); 124 #endif 125 static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *, 126 ohci_softc_t *, int, int, u_int16_t, usb_dma_t *, 127 ohci_soft_td_t *, ohci_soft_td_t **)); 128 129 static void ohci_shutdown __P((void *v)); 130 static void ohci_power __P((int, void *)); 131 static usbd_status ohci_open __P((usbd_pipe_handle)); 132 static void ohci_poll __P((struct usbd_bus *)); 133 static void ohci_waitintr __P((ohci_softc_t *, 134 usbd_xfer_handle)); 135 static void ohci_rhsc __P((ohci_softc_t *, usbd_xfer_handle)); 136 static void ohci_process_done __P((ohci_softc_t *, 137 ohci_physaddr_t)); 138 139 static usbd_status ohci_device_request __P((usbd_xfer_handle xfer)); 140 static void ohci_add_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 141 static void ohci_rem_ed __P((ohci_soft_ed_t *, ohci_soft_ed_t *)); 142 static void ohci_hash_add_td __P((ohci_softc_t *, 143 ohci_soft_td_t *)); 144 static void ohci_hash_rem_td __P((ohci_softc_t *, 145 ohci_soft_td_t *)); 146 static ohci_soft_td_t *ohci_hash_find_td __P((ohci_softc_t *, 147 ohci_physaddr_t)); 148 149 static usbd_status ohci_setup_isoc __P((usbd_pipe_handle pipe)); 150 static void ohci_device_isoc_enter __P((usbd_xfer_handle)); 151 152 static usbd_status ohci_allocm __P((struct usbd_bus *, usb_dma_t *, 153 u_int32_t)); 154 static void ohci_freem __P((struct usbd_bus *, usb_dma_t *)); 155 156 static usbd_xfer_handle ohci_allocx __P((struct usbd_bus *)); 157 static void ohci_freex __P((struct usbd_bus *, usbd_xfer_handle)); 158 159 static usbd_status ohci_root_ctrl_transfer __P((usbd_xfer_handle)); 160 static usbd_status ohci_root_ctrl_start __P((usbd_xfer_handle)); 161 static void ohci_root_ctrl_abort __P((usbd_xfer_handle)); 162 static void ohci_root_ctrl_close __P((usbd_pipe_handle)); 163 static void ohci_root_ctrl_done __P((usbd_xfer_handle)); 164 165 static usbd_status ohci_root_intr_transfer __P((usbd_xfer_handle)); 166 static usbd_status ohci_root_intr_start __P((usbd_xfer_handle)); 167 static void ohci_root_intr_abort __P((usbd_xfer_handle)); 168 static void ohci_root_intr_close __P((usbd_pipe_handle)); 169 static void ohci_root_intr_done __P((usbd_xfer_handle)); 170 171 static usbd_status ohci_device_ctrl_transfer __P((usbd_xfer_handle)); 172 static usbd_status ohci_device_ctrl_start __P((usbd_xfer_handle)); 173 static void ohci_device_ctrl_abort __P((usbd_xfer_handle)); 174 static void ohci_device_ctrl_close __P((usbd_pipe_handle)); 175 static void ohci_device_ctrl_done __P((usbd_xfer_handle)); 176 177 static usbd_status ohci_device_bulk_transfer __P((usbd_xfer_handle)); 178 static usbd_status ohci_device_bulk_start __P((usbd_xfer_handle)); 179 static void ohci_device_bulk_abort __P((usbd_xfer_handle)); 180 static void ohci_device_bulk_close __P((usbd_pipe_handle)); 181 static void ohci_device_bulk_done __P((usbd_xfer_handle)); 182 183 static usbd_status ohci_device_intr_transfer __P((usbd_xfer_handle)); 184 static usbd_status ohci_device_intr_start __P((usbd_xfer_handle)); 185 static void ohci_device_intr_abort __P((usbd_xfer_handle)); 186 static void ohci_device_intr_close __P((usbd_pipe_handle)); 187 static void ohci_device_intr_done __P((usbd_xfer_handle)); 188 189 static usbd_status ohci_device_isoc_transfer __P((usbd_xfer_handle)); 190 static usbd_status ohci_device_isoc_start __P((usbd_xfer_handle)); 191 static void ohci_device_isoc_abort __P((usbd_xfer_handle)); 192 static void ohci_device_isoc_close __P((usbd_pipe_handle)); 193 static void ohci_device_isoc_done __P((usbd_xfer_handle)); 194 195 static usbd_status ohci_device_setintr __P((ohci_softc_t *sc, 196 struct ohci_pipe *pipe, int ival)); 197 198 static int ohci_str __P((usb_string_descriptor_t *, int, char *)); 199 200 static void ohci_timeout __P((void *)); 201 static void ohci_rhsc_able __P((ohci_softc_t *, int)); 202 203 static void ohci_close_pipe __P((usbd_pipe_handle pipe, 204 ohci_soft_ed_t *head)); 205 static void ohci_abort_xfer __P((usbd_xfer_handle xfer, 206 usbd_status status)); 207 static void ohci_abort_xfer_end __P((void *)); 208 209 static void ohci_device_clear_toggle __P((usbd_pipe_handle pipe)); 210 static void ohci_noop __P((usbd_pipe_handle pipe)); 211 212 #ifdef OHCI_DEBUG 213 static void ohci_dumpregs __P((ohci_softc_t *)); 214 static void ohci_dump_tds __P((ohci_soft_td_t *)); 215 static void ohci_dump_td __P((ohci_soft_td_t *)); 216 static void ohci_dump_ed __P((ohci_soft_ed_t *)); 217 #endif 218 219 #define OWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 220 #define OREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 221 #define OREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 222 223 /* Reverse the bits in a value 0 .. 31 */ 224 static u_int8_t revbits[OHCI_NO_INTRS] = 225 { 0x00, 0x10, 0x08, 0x18, 0x04, 0x14, 0x0c, 0x1c, 226 0x02, 0x12, 0x0a, 0x1a, 0x06, 0x16, 0x0e, 0x1e, 227 0x01, 0x11, 0x09, 0x19, 0x05, 0x15, 0x0d, 0x1d, 228 0x03, 0x13, 0x0b, 0x1b, 0x07, 0x17, 0x0f, 0x1f }; 229 230 struct ohci_pipe { 231 struct usbd_pipe pipe; 232 ohci_soft_ed_t *sed; 233 union { 234 ohci_soft_td_t *td; 235 ohci_soft_itd_t *itd; 236 } tail; 237 /* Info needed for different pipe kinds. */ 238 union { 239 /* Control pipe */ 240 struct { 241 usb_dma_t reqdma; 242 u_int length; 243 ohci_soft_td_t *setup, *data, *stat; 244 } ctl; 245 /* Interrupt pipe */ 246 struct { 247 int nslots; 248 int pos; 249 } intr; 250 /* Bulk pipe */ 251 struct { 252 u_int length; 253 int isread; 254 } bulk; 255 /* Iso pipe */ 256 struct iso { 257 int next, inuse; 258 } iso; 259 } u; 260 }; 261 262 #define OHCI_INTR_ENDPT 1 263 264 static struct usbd_bus_methods ohci_bus_methods = { 265 ohci_open, 266 ohci_poll, 267 ohci_allocm, 268 ohci_freem, 269 ohci_allocx, 270 ohci_freex, 271 }; 272 273 static struct usbd_pipe_methods ohci_root_ctrl_methods = { 274 ohci_root_ctrl_transfer, 275 ohci_root_ctrl_start, 276 ohci_root_ctrl_abort, 277 ohci_root_ctrl_close, 278 ohci_noop, 279 ohci_root_ctrl_done, 280 }; 281 282 static struct usbd_pipe_methods ohci_root_intr_methods = { 283 ohci_root_intr_transfer, 284 ohci_root_intr_start, 285 ohci_root_intr_abort, 286 ohci_root_intr_close, 287 ohci_noop, 288 ohci_root_intr_done, 289 }; 290 291 static struct usbd_pipe_methods ohci_device_ctrl_methods = { 292 ohci_device_ctrl_transfer, 293 ohci_device_ctrl_start, 294 ohci_device_ctrl_abort, 295 ohci_device_ctrl_close, 296 ohci_noop, 297 ohci_device_ctrl_done, 298 }; 299 300 static struct usbd_pipe_methods ohci_device_intr_methods = { 301 ohci_device_intr_transfer, 302 ohci_device_intr_start, 303 ohci_device_intr_abort, 304 ohci_device_intr_close, 305 ohci_device_clear_toggle, 306 ohci_device_intr_done, 307 }; 308 309 static struct usbd_pipe_methods ohci_device_bulk_methods = { 310 ohci_device_bulk_transfer, 311 ohci_device_bulk_start, 312 ohci_device_bulk_abort, 313 ohci_device_bulk_close, 314 ohci_device_clear_toggle, 315 ohci_device_bulk_done, 316 }; 317 318 static struct usbd_pipe_methods ohci_device_isoc_methods = { 319 ohci_device_isoc_transfer, 320 ohci_device_isoc_start, 321 ohci_device_isoc_abort, 322 ohci_device_isoc_close, 323 ohci_noop, 324 ohci_device_isoc_done, 325 }; 326 327 #if defined(__NetBSD__) || defined(__OpenBSD__) 328 int 329 ohci_activate(self, act) 330 device_ptr_t self; 331 enum devact act; 332 { 333 struct ohci_softc *sc = (struct ohci_softc *)self; 334 int rv = 0; 335 336 switch (act) { 337 case DVACT_ACTIVATE: 338 return (EOPNOTSUPP); 339 break; 340 341 case DVACT_DEACTIVATE: 342 if (sc->sc_child != NULL) 343 rv = config_deactivate(sc->sc_child); 344 break; 345 } 346 return (rv); 347 } 348 349 int 350 ohci_detach(sc, flags) 351 struct ohci_softc *sc; 352 int flags; 353 { 354 int rv = 0; 355 356 if (sc->sc_child != NULL) 357 rv = config_detach(sc->sc_child, flags); 358 359 if (rv != 0) 360 return (rv); 361 362 powerhook_disestablish(sc->sc_powerhook); 363 shutdownhook_disestablish(sc->sc_shutdownhook); 364 365 /* free data structures XXX */ 366 367 return (rv); 368 } 369 #endif 370 371 ohci_soft_ed_t * 372 ohci_alloc_sed(sc) 373 ohci_softc_t *sc; 374 { 375 ohci_soft_ed_t *sed; 376 usbd_status err; 377 int i, offs; 378 usb_dma_t dma; 379 380 if (sc->sc_freeeds == NULL) { 381 DPRINTFN(2, ("ohci_alloc_sed: allocating chunk\n")); 382 err = usb_allocmem(&sc->sc_bus, OHCI_SED_SIZE * OHCI_SED_CHUNK, 383 OHCI_ED_ALIGN, &dma); 384 if (err) 385 return (0); 386 for(i = 0; i < OHCI_SED_CHUNK; i++) { 387 offs = i * OHCI_SED_SIZE; 388 sed = (ohci_soft_ed_t *)((char *)KERNADDR(&dma) +offs); 389 sed->physaddr = DMAADDR(&dma) + offs; 390 sed->next = sc->sc_freeeds; 391 sc->sc_freeeds = sed; 392 } 393 } 394 sed = sc->sc_freeeds; 395 sc->sc_freeeds = sed->next; 396 memset(&sed->ed, 0, sizeof(ohci_ed_t)); 397 sed->next = 0; 398 return (sed); 399 } 400 401 void 402 ohci_free_sed(sc, sed) 403 ohci_softc_t *sc; 404 ohci_soft_ed_t *sed; 405 { 406 sed->next = sc->sc_freeeds; 407 sc->sc_freeeds = sed; 408 } 409 410 ohci_soft_td_t * 411 ohci_alloc_std(sc) 412 ohci_softc_t *sc; 413 { 414 ohci_soft_td_t *std; 415 usbd_status err; 416 int i, offs; 417 usb_dma_t dma; 418 419 if (sc->sc_freetds == NULL) { 420 DPRINTFN(2, ("ohci_alloc_std: allocating chunk\n")); 421 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 422 OHCI_TD_ALIGN, &dma); 423 if (err) 424 return (0); 425 for(i = 0; i < OHCI_STD_CHUNK; i++) { 426 offs = i * OHCI_STD_SIZE; 427 std = (ohci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 428 std->physaddr = DMAADDR(&dma) + offs; 429 std->nexttd = sc->sc_freetds; 430 sc->sc_freetds = std; 431 } 432 } 433 std = sc->sc_freetds; 434 sc->sc_freetds = std->nexttd; 435 memset(&std->td, 0, sizeof(ohci_td_t)); 436 std->nexttd = 0; 437 return (std); 438 } 439 440 void 441 ohci_free_std(sc, std) 442 ohci_softc_t *sc; 443 ohci_soft_td_t *std; 444 { 445 std->nexttd = sc->sc_freetds; 446 sc->sc_freetds = std; 447 } 448 449 usbd_status 450 ohci_alloc_std_chain(opipe, sc, len, rd, flags, dma, sp, ep) 451 struct ohci_pipe *opipe; 452 ohci_softc_t *sc; 453 int len, rd; 454 u_int16_t flags; 455 usb_dma_t *dma; 456 ohci_soft_td_t *sp, **ep; 457 { 458 ohci_soft_td_t *next, *cur; 459 ohci_physaddr_t dataphys, dataphysend; 460 u_int32_t intr, tdflags; 461 int curlen; 462 463 DPRINTFN(len < 4096,("ohci_alloc_std_chain: start len=%d\n", len)); 464 cur = sp; 465 dataphys = DMAADDR(dma); 466 dataphysend = OHCI_PAGE(dataphys + len - 1); 467 tdflags = 468 (rd ? OHCI_TD_IN : OHCI_TD_OUT) | 469 OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | 470 (flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0); 471 472 for (;;) { 473 next = ohci_alloc_std(sc); 474 if (next == 0) 475 goto nomem; 476 477 /* The OHCI hardware can handle at most one page crossing. */ 478 if (OHCI_PAGE(dataphys) == dataphysend || 479 OHCI_PAGE(dataphys) + OHCI_PAGE_SIZE == dataphysend) { 480 /* we can handle it in this TD */ 481 curlen = len; 482 } else { 483 /* must use multiple TDs, fill as much as possible. */ 484 curlen = 2 * OHCI_PAGE_SIZE - 485 (dataphys & (OHCI_PAGE_SIZE-1)); 486 } 487 DPRINTFN(4,("ohci_alloc_std_chain: dataphys=0x%08x " 488 "dataphysend=0x%08x len=%d curlen=%d\n", 489 dataphys, dataphysend, 490 len, curlen)); 491 len -= curlen; 492 493 intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR; 494 cur->td.td_flags = LE(tdflags | intr); 495 cur->td.td_cbp = LE(dataphys); 496 cur->nexttd = next; 497 cur->td.td_nexttd = LE(next->physaddr); 498 cur->td.td_be = LE(dataphys + curlen - 1); 499 cur->len = curlen; 500 cur->flags = OHCI_ADD_LEN; 501 DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n", 502 dataphys, dataphys + curlen - 1)); 503 if (len == 0) 504 break; 505 DPRINTFN(10,("ohci_alloc_std_chain: extend chain\n")); 506 dataphys += curlen; 507 cur = next; 508 } 509 if ((flags & USBD_FORCE_SHORT_XFER) && 510 len % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) { 511 /* Force a 0 length transfer at the end. */ 512 next = ohci_alloc_std(sc); 513 if (next == 0) 514 goto nomem; 515 516 cur->td.td_flags = LE(tdflags | OHCI_TD_SET_DI(1)); 517 cur->td.td_cbp = 0; /* indicate 0 length packet */ 518 cur->nexttd = next; 519 cur->td.td_nexttd = LE(next->physaddr); 520 cur->td.td_be = LE(dataphys - 1); 521 cur->len = 0; 522 cur->flags = 0; 523 cur = next; 524 DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n")); 525 } 526 cur->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 527 *ep = next; 528 529 return (USBD_NORMAL_COMPLETION); 530 531 nomem: 532 /* XXX free chain */ 533 return (USBD_NOMEM); 534 } 535 536 #if 0 537 static void 538 ohci_free_std_chain(sc, std, stdend) 539 ohci_softc_t *sc; 540 ohci_soft_td_t *std; 541 ohci_soft_td_t *stdend; 542 { 543 ohci_soft_td_t *p; 544 545 for (; std != stdend; std = p) { 546 p = std->nexttd; 547 ohci_free_std(sc, std); 548 } 549 } 550 #endif 551 552 ohci_soft_itd_t * 553 ohci_alloc_sitd(sc) 554 ohci_softc_t *sc; 555 { 556 ohci_soft_itd_t *sitd; 557 usbd_status err; 558 int i, offs; 559 usb_dma_t dma; 560 561 if (sc->sc_freeitds == NULL) { 562 DPRINTFN(2, ("ohci_alloc_sitd: allocating chunk\n")); 563 err = usb_allocmem(&sc->sc_bus, OHCI_STD_SIZE * OHCI_STD_CHUNK, 564 OHCI_TD_ALIGN, &dma); 565 if (err) 566 return (0); 567 for(i = 0; i < OHCI_STD_CHUNK; i++) { 568 offs = i * OHCI_STD_SIZE; 569 sitd = (ohci_soft_itd_t *)((char*)KERNADDR(&dma)+offs); 570 sitd->physaddr = DMAADDR(&dma) + offs; 571 sitd->nextitd = sc->sc_freeitds; 572 sc->sc_freeitds = sitd; 573 } 574 } 575 sitd = sc->sc_freeitds; 576 sc->sc_freeitds = sitd->nextitd; 577 memset(&sitd->itd, 0, sizeof(ohci_itd_t)); 578 sitd->nextitd = 0; 579 return (sitd); 580 } 581 582 void 583 ohci_free_sitd(sc, sitd) 584 ohci_softc_t *sc; 585 ohci_soft_itd_t *sitd; 586 { 587 sitd->nextitd = sc->sc_freeitds; 588 sc->sc_freeitds = sitd; 589 } 590 591 usbd_status 592 ohci_init(sc) 593 ohci_softc_t *sc; 594 { 595 ohci_soft_ed_t *sed, *psed; 596 usbd_status err; 597 int i; 598 u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; 599 600 DPRINTF(("ohci_init: start\n")); 601 #if defined(__OpenBSD__) 602 printf(","); 603 #else 604 printf("%s:", USBDEVNAME(sc->sc_bus.bdev)); 605 #endif 606 rev = OREAD4(sc, OHCI_REVISION); 607 printf(" OHCI version %d.%d%s\n", OHCI_REV_HI(rev), OHCI_REV_LO(rev), 608 OHCI_REV_LEGACY(rev) ? ", legacy support" : ""); 609 610 if (OHCI_REV_HI(rev) != 1 || OHCI_REV_LO(rev) != 0) { 611 printf("%s: unsupported OHCI revision\n", 612 USBDEVNAME(sc->sc_bus.bdev)); 613 sc->sc_bus.usbrev = USBREV_UNKNOWN; 614 return (USBD_INVAL); 615 } 616 sc->sc_bus.usbrev = USBREV_1_0; 617 618 for (i = 0; i < OHCI_HASH_SIZE; i++) 619 LIST_INIT(&sc->sc_hash_tds[i]); 620 621 SIMPLEQ_INIT(&sc->sc_free_xfers); 622 623 /* Allocate the HCCA area. */ 624 err = usb_allocmem(&sc->sc_bus, OHCI_HCCA_SIZE, 625 OHCI_HCCA_ALIGN, &sc->sc_hccadma); 626 if (err) 627 return (err); 628 sc->sc_hcca = (struct ohci_hcca *)KERNADDR(&sc->sc_hccadma); 629 memset(sc->sc_hcca, 0, OHCI_HCCA_SIZE); 630 631 sc->sc_eintrs = OHCI_NORMAL_INTRS; 632 633 /* Allocate dummy ED that starts the control list. */ 634 sc->sc_ctrl_head = ohci_alloc_sed(sc); 635 if (sc->sc_ctrl_head == NULL) { 636 err = USBD_NOMEM; 637 goto bad1; 638 } 639 sc->sc_ctrl_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 640 641 /* Allocate dummy ED that starts the bulk list. */ 642 sc->sc_bulk_head = ohci_alloc_sed(sc); 643 if (sc->sc_bulk_head == NULL) { 644 err = USBD_NOMEM; 645 goto bad2; 646 } 647 sc->sc_bulk_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 648 649 /* Allocate dummy ED that starts the isochronous list. */ 650 sc->sc_isoc_head = ohci_alloc_sed(sc); 651 if (sc->sc_isoc_head == NULL) { 652 err = USBD_NOMEM; 653 goto bad3; 654 } 655 sc->sc_isoc_head->ed.ed_flags |= LE(OHCI_ED_SKIP); 656 657 /* Allocate all the dummy EDs that make up the interrupt tree. */ 658 for (i = 0; i < OHCI_NO_EDS; i++) { 659 sed = ohci_alloc_sed(sc); 660 if (sed == NULL) { 661 while (--i >= 0) 662 ohci_free_sed(sc, sc->sc_eds[i]); 663 err = USBD_NOMEM; 664 goto bad4; 665 } 666 /* All ED fields are set to 0. */ 667 sc->sc_eds[i] = sed; 668 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 669 if (i != 0) 670 psed = sc->sc_eds[(i-1) / 2]; 671 else 672 psed= sc->sc_isoc_head; 673 sed->next = psed; 674 sed->ed.ed_nexted = LE(psed->physaddr); 675 } 676 /* 677 * Fill HCCA interrupt table. The bit reversal is to get 678 * the tree set up properly to spread the interrupts. 679 */ 680 for (i = 0; i < OHCI_NO_INTRS; i++) 681 sc->sc_hcca->hcca_interrupt_table[revbits[i]] = 682 LE(sc->sc_eds[OHCI_NO_EDS-OHCI_NO_INTRS+i]->physaddr); 683 684 /* Determine in what context we are running. */ 685 ctl = OREAD4(sc, OHCI_CONTROL); 686 if (ctl & OHCI_IR) { 687 /* SMM active, request change */ 688 DPRINTF(("ohci_init: SMM active, request owner change\n")); 689 s = OREAD4(sc, OHCI_COMMAND_STATUS); 690 OWRITE4(sc, OHCI_COMMAND_STATUS, s | OHCI_OCR); 691 for (i = 0; i < 100 && (ctl & OHCI_IR); i++) { 692 usb_delay_ms(&sc->sc_bus, 1); 693 ctl = OREAD4(sc, OHCI_CONTROL); 694 } 695 if ((ctl & OHCI_IR) == 0) { 696 printf("%s: SMM does not respond, resetting\n", 697 USBDEVNAME(sc->sc_bus.bdev)); 698 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 699 goto reset; 700 } 701 } else if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_RESET) { 702 /* BIOS started controller. */ 703 DPRINTF(("ohci_init: BIOS active\n")); 704 if ((ctl & OHCI_HCFS_MASK) != OHCI_HCFS_OPERATIONAL) { 705 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_OPERATIONAL); 706 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 707 } 708 } else { 709 DPRINTF(("ohci_init: cold started\n")); 710 reset: 711 /* Controller was cold started. */ 712 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 713 } 714 715 /* 716 * This reset should not be necessary according to the OHCI spec, but 717 * without it some controllers do not start. 718 */ 719 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 720 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 721 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); 722 723 /* We now own the host controller and the bus has been reset. */ 724 ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL)); 725 726 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */ 727 /* Nominal time for a reset is 10 us. */ 728 for (i = 0; i < 10; i++) { 729 delay(10); 730 hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR; 731 if (!hcr) 732 break; 733 } 734 if (hcr) { 735 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 736 err = USBD_IOERROR; 737 goto bad5; 738 } 739 #ifdef OHCI_DEBUG 740 if (ohcidebug > 15) 741 ohci_dumpregs(sc); 742 #endif 743 744 /* The controller is now in SUSPEND state, we have 2ms to finish. */ 745 746 /* Set up HC registers. */ 747 OWRITE4(sc, OHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 748 OWRITE4(sc, OHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 749 OWRITE4(sc, OHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 750 /* disable all interrupts and then switch on all desired interrupts */ 751 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS); 752 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE); 753 /* switch on desired functional features */ 754 ctl = OREAD4(sc, OHCI_CONTROL); 755 ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR); 756 ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE | 757 OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL; 758 /* And finally start it! */ 759 OWRITE4(sc, OHCI_CONTROL, ctl); 760 761 /* 762 * The controller is now OPERATIONAL. Set a some final 763 * registers that should be set earlier, but that the 764 * controller ignores when in the SUSPEND state. 765 */ 766 fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT; 767 fm |= OHCI_FSMPS(ival) | ival; 768 OWRITE4(sc, OHCI_FM_INTERVAL, fm); 769 per = OHCI_PERIODIC(ival); /* 90% periodic */ 770 OWRITE4(sc, OHCI_PERIODIC_START, per); 771 772 /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ 773 desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 774 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); 775 OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ 776 usb_delay_ms(&sc->sc_bus, 5); 777 OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); 778 779 sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); 780 781 #ifdef OHCI_DEBUG 782 if (ohcidebug > 5) 783 ohci_dumpregs(sc); 784 #endif 785 786 /* Set up the bus struct. */ 787 sc->sc_bus.methods = &ohci_bus_methods; 788 sc->sc_bus.pipe_size = sizeof(struct ohci_pipe); 789 790 sc->sc_powerhook = powerhook_establish(ohci_power, sc); 791 792 sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc); 793 794 return (USBD_NORMAL_COMPLETION); 795 796 bad5: 797 for (i = 0; i < OHCI_NO_EDS; i++) 798 ohci_free_sed(sc, sc->sc_eds[i]); 799 bad4: 800 ohci_free_sed(sc, sc->sc_isoc_head); 801 bad3: 802 ohci_free_sed(sc, sc->sc_ctrl_head); 803 bad2: 804 ohci_free_sed(sc, sc->sc_bulk_head); 805 bad1: 806 usb_freemem(&sc->sc_bus, &sc->sc_hccadma); 807 return (err); 808 } 809 810 usbd_status 811 ohci_allocm(bus, dma, size) 812 struct usbd_bus *bus; 813 usb_dma_t *dma; 814 u_int32_t size; 815 { 816 #if defined(__NetBSD__) || defined(__OpenBSD__) 817 struct ohci_softc *sc = (struct ohci_softc *)bus; 818 #endif 819 820 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 821 } 822 823 void 824 ohci_freem(bus, dma) 825 struct usbd_bus *bus; 826 usb_dma_t *dma; 827 { 828 #if defined(__NetBSD__) || defined(__OpenBSD__) 829 struct ohci_softc *sc = (struct ohci_softc *)bus; 830 #endif 831 832 usb_freemem(&sc->sc_bus, dma); 833 } 834 835 usbd_xfer_handle 836 ohci_allocx(bus) 837 struct usbd_bus *bus; 838 { 839 struct ohci_softc *sc = (struct ohci_softc *)bus; 840 usbd_xfer_handle xfer; 841 842 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 843 if (xfer != NULL) 844 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 845 else 846 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 847 if (xfer != NULL) 848 memset(xfer, 0, sizeof *xfer); 849 return (xfer); 850 } 851 852 void 853 ohci_freex(bus, xfer) 854 struct usbd_bus *bus; 855 usbd_xfer_handle xfer; 856 { 857 struct ohci_softc *sc = (struct ohci_softc *)bus; 858 859 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 860 } 861 862 /* 863 * Shut down the controller when the system is going down. 864 */ 865 void 866 ohci_shutdown(v) 867 void *v; 868 { 869 ohci_softc_t *sc = v; 870 871 DPRINTF(("ohci_shutdown: stopping the HC\n")); 872 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 873 } 874 875 /* 876 * Handle suspend/resume. 877 * 878 * We need to switch to polling mode here, because this routine is 879 * called from an intterupt context. This is all right since we 880 * are almost suspended anyway. 881 */ 882 void 883 ohci_power(why, v) 884 int why; 885 void *v; 886 { 887 #ifdef OHCI_DEBUG 888 ohci_softc_t *sc = v; 889 890 DPRINTF(("ohci_power: sc=%p, why=%d\n", sc, why)); 891 /* XXX should suspend/resume */ 892 ohci_dumpregs(sc); 893 #endif 894 } 895 896 #ifdef OHCI_DEBUG 897 void 898 ohci_dumpregs(sc) 899 ohci_softc_t *sc; 900 { 901 DPRINTF(("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n", 902 OREAD4(sc, OHCI_REVISION), 903 OREAD4(sc, OHCI_CONTROL), 904 OREAD4(sc, OHCI_COMMAND_STATUS))); 905 DPRINTF((" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n", 906 OREAD4(sc, OHCI_INTERRUPT_STATUS), 907 OREAD4(sc, OHCI_INTERRUPT_ENABLE), 908 OREAD4(sc, OHCI_INTERRUPT_DISABLE))); 909 DPRINTF((" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n", 910 OREAD4(sc, OHCI_HCCA), 911 OREAD4(sc, OHCI_PERIOD_CURRENT_ED), 912 OREAD4(sc, OHCI_CONTROL_HEAD_ED))); 913 DPRINTF((" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n", 914 OREAD4(sc, OHCI_CONTROL_CURRENT_ED), 915 OREAD4(sc, OHCI_BULK_HEAD_ED), 916 OREAD4(sc, OHCI_BULK_CURRENT_ED))); 917 DPRINTF((" done=0x%08x fmival=0x%08x fmrem=0x%08x\n", 918 OREAD4(sc, OHCI_DONE_HEAD), 919 OREAD4(sc, OHCI_FM_INTERVAL), 920 OREAD4(sc, OHCI_FM_REMAINING))); 921 DPRINTF((" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n", 922 OREAD4(sc, OHCI_FM_NUMBER), 923 OREAD4(sc, OHCI_PERIODIC_START), 924 OREAD4(sc, OHCI_LS_THRESHOLD))); 925 DPRINTF((" desca=0x%08x descb=0x%08x stat=0x%08x\n", 926 OREAD4(sc, OHCI_RH_DESCRIPTOR_A), 927 OREAD4(sc, OHCI_RH_DESCRIPTOR_B), 928 OREAD4(sc, OHCI_RH_STATUS))); 929 DPRINTF((" port1=0x%08x port2=0x%08x\n", 930 OREAD4(sc, OHCI_RH_PORT_STATUS(1)), 931 OREAD4(sc, OHCI_RH_PORT_STATUS(2)))); 932 DPRINTF((" HCCA: frame_number=0x%04x done_head=0x%08x\n", 933 LE(sc->sc_hcca->hcca_frame_number), 934 LE(sc->sc_hcca->hcca_done_head))); 935 } 936 #endif 937 938 static int ohci_intr1 __P((ohci_softc_t *)); 939 940 int 941 ohci_intr(p) 942 void *p; 943 { 944 ohci_softc_t *sc = p; 945 946 /* If we get an interrupt while polling, then just ignore it. */ 947 if (sc->sc_bus.use_polling) { 948 #ifdef DIAGNOSTIC 949 printf("ohci_intr: ignored interrupt while polling\n"); 950 #endif 951 return (0); 952 } 953 954 return (ohci_intr1(sc)); 955 } 956 957 static int 958 ohci_intr1(sc) 959 ohci_softc_t *sc; 960 { 961 u_int32_t intrs, eintrs; 962 ohci_physaddr_t done; 963 964 /* In case the interrupt occurs before initialization has completed. */ 965 if (sc == NULL || sc->sc_hcca == NULL) { 966 #ifdef DIAGNOSTIC 967 printf("ohci_intr: sc->sc_hcca == NULL\n"); 968 #endif 969 return (0); 970 } 971 972 intrs = 0; 973 done = LE(sc->sc_hcca->hcca_done_head); 974 if (done != 0) { 975 sc->sc_hcca->hcca_done_head = 0; 976 if (done & ~OHCI_DONE_INTRS) 977 intrs = OHCI_WDH; 978 if (done & OHCI_DONE_INTRS) 979 intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); 980 } else 981 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); 982 983 if (!intrs) 984 return (0); 985 986 intrs &= ~OHCI_MIE; 987 OWRITE4(sc, OHCI_INTERRUPT_STATUS, intrs); /* Acknowledge */ 988 eintrs = intrs & sc->sc_eintrs; 989 if (!eintrs) 990 return (0); 991 992 sc->sc_bus.intr_context++; 993 sc->sc_bus.no_intrs++; 994 DPRINTFN(7, ("ohci_intr: sc=%p intrs=%x(%x) eintr=%x\n", 995 sc, (u_int)intrs, OREAD4(sc, OHCI_INTERRUPT_STATUS), 996 (u_int)eintrs)); 997 998 if (eintrs & OHCI_SO) { 999 printf("%s: scheduling overrun\n",USBDEVNAME(sc->sc_bus.bdev)); 1000 /* XXX do what */ 1001 intrs &= ~OHCI_SO; 1002 } 1003 if (eintrs & OHCI_WDH) { 1004 ohci_process_done(sc, done &~ OHCI_DONE_INTRS); 1005 intrs &= ~OHCI_WDH; 1006 } 1007 if (eintrs & OHCI_RD) { 1008 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1009 /* XXX process resume detect */ 1010 } 1011 if (eintrs & OHCI_UE) { 1012 printf("%s: unrecoverable error, controller halted\n", 1013 USBDEVNAME(sc->sc_bus.bdev)); 1014 OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET); 1015 /* XXX what else */ 1016 } 1017 if (eintrs & OHCI_RHSC) { 1018 ohci_rhsc(sc, sc->sc_intrxfer); 1019 intrs &= ~OHCI_RHSC; 1020 1021 /* 1022 * Disable RHSC interrupt for now, because it will be 1023 * on until the port has been reset. 1024 */ 1025 ohci_rhsc_able(sc, 0); 1026 } 1027 1028 sc->sc_bus.intr_context--; 1029 1030 /* Block unprocessed interrupts. XXX */ 1031 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, intrs); 1032 sc->sc_eintrs &= ~intrs; 1033 1034 return (1); 1035 } 1036 1037 void 1038 ohci_rhsc_able(sc, on) 1039 ohci_softc_t *sc; 1040 int on; 1041 { 1042 DPRINTFN(4, ("ohci_rhsc_able: on=%d\n", on)); 1043 if (on) { 1044 sc->sc_eintrs |= OHCI_RHSC; 1045 OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC); 1046 } else { 1047 sc->sc_eintrs &= ~OHCI_RHSC; 1048 OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC); 1049 } 1050 } 1051 1052 #ifdef OHCI_DEBUG 1053 char *ohci_cc_strs[] = { 1054 "NO_ERROR", 1055 "CRC", 1056 "BIT_STUFFING", 1057 "DATA_TOGGLE_MISMATCH", 1058 "STALL", 1059 "DEVICE_NOT_RESPONDING", 1060 "PID_CHECK_FAILURE", 1061 "UNEXPECTED_PID", 1062 "DATA_OVERRUN", 1063 "DATA_UNDERRUN", 1064 "BUFFER_OVERRUN", 1065 "BUFFER_UNDERRUN", 1066 "reserved", 1067 "reserved", 1068 "NOT_ACCESSED", 1069 "NOT_ACCESSED", 1070 }; 1071 #endif 1072 1073 void 1074 ohci_process_done(sc, done) 1075 ohci_softc_t *sc; 1076 ohci_physaddr_t done; 1077 { 1078 ohci_soft_td_t *std, *sdone, *stdnext; 1079 usbd_xfer_handle xfer; 1080 int len, cc; 1081 1082 DPRINTFN(10,("ohci_process_done: done=0x%08lx\n", (u_long)done)); 1083 1084 /* Reverse the done list. */ 1085 for (sdone = 0; done; done = LE(std->td.td_nexttd)) { 1086 std = ohci_hash_find_td(sc, done); 1087 std->dnext = sdone; 1088 sdone = std; 1089 } 1090 1091 #ifdef OHCI_DEBUG 1092 if (ohcidebug > 10) { 1093 DPRINTF(("ohci_process_done: TD done:\n")); 1094 ohci_dump_tds(sdone); 1095 } 1096 #endif 1097 1098 for (std = sdone; std; std = stdnext) { 1099 xfer = std->xfer; 1100 stdnext = std->dnext; 1101 DPRINTFN(10, ("ohci_process_done: std=%p xfer=%p hcpriv=%p\n", 1102 std, xfer, xfer->hcpriv)); 1103 cc = OHCI_TD_GET_CC(LE(std->td.td_flags)); 1104 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1105 if (xfer->status == USBD_CANCELLED || 1106 xfer->status == USBD_TIMEOUT) { 1107 DPRINTF(("ohci_process_done: cancel/timeout %p\n", 1108 xfer)); 1109 /* Handled by abort routine. */ 1110 } else if (cc == OHCI_CC_NO_ERROR) { 1111 len = std->len; 1112 if (std->td.td_cbp != 0) 1113 len -= LE(std->td.td_be) - 1114 LE(std->td.td_cbp) + 1; 1115 if (std->flags & OHCI_ADD_LEN) 1116 xfer->actlen += len; 1117 if (std->flags & OHCI_CALL_DONE) { 1118 xfer->status = USBD_NORMAL_COMPLETION; 1119 usb_transfer_complete(xfer); 1120 } 1121 ohci_hash_rem_td(sc, std); 1122 ohci_free_std(sc, std); 1123 } else { 1124 /* 1125 * Endpoint is halted. First unlink all the TDs 1126 * belonging to the failed transfer, and then restart 1127 * the endpoint. 1128 */ 1129 ohci_soft_td_t *p, *n; 1130 struct ohci_pipe *opipe = 1131 (struct ohci_pipe *)xfer->pipe; 1132 1133 DPRINTF(("ohci_process_done: error cc=%d (%s)\n", 1134 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1135 ohci_cc_strs[OHCI_TD_GET_CC(LE(std->td.td_flags))])); 1136 1137 /* remove TDs */ 1138 for (p = std; p->xfer == xfer; p = n) { 1139 n = p->nexttd; 1140 ohci_hash_rem_td(sc, p); 1141 ohci_free_std(sc, p); 1142 } 1143 1144 /* clear halt */ 1145 opipe->sed->ed.ed_headp = LE(p->physaddr); 1146 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1147 1148 if (cc == OHCI_CC_STALL) 1149 xfer->status = USBD_STALLED; 1150 else 1151 xfer->status = USBD_IOERROR; 1152 usb_transfer_complete(xfer); 1153 } 1154 } 1155 } 1156 1157 void 1158 ohci_device_ctrl_done(xfer) 1159 usbd_xfer_handle xfer; 1160 { 1161 DPRINTFN(10,("ohci_ctrl_done: xfer=%p\n", xfer)); 1162 1163 #ifdef DIAGNOSTIC 1164 if (!(xfer->rqflags & URQ_REQUEST)) { 1165 panic("ohci_ctrl_done: not a request\n"); 1166 } 1167 #endif 1168 xfer->hcpriv = NULL; 1169 } 1170 1171 void 1172 ohci_device_intr_done(xfer) 1173 usbd_xfer_handle xfer; 1174 { 1175 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1176 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1177 ohci_soft_ed_t *sed = opipe->sed; 1178 ohci_soft_td_t *data, *tail; 1179 1180 1181 DPRINTFN(10,("ohci_intr_done: xfer=%p, actlen=%d\n", 1182 xfer, xfer->actlen)); 1183 1184 xfer->hcpriv = NULL; 1185 1186 if (xfer->pipe->repeat) { 1187 data = opipe->tail.td; 1188 tail = ohci_alloc_std(sc); /* XXX should reuse TD */ 1189 if (tail == NULL) { 1190 xfer->status = USBD_NOMEM; 1191 return; 1192 } 1193 tail->xfer = NULL; 1194 1195 data->td.td_flags = LE( 1196 OHCI_TD_IN | OHCI_TD_NOCC | 1197 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 1198 if (xfer->flags & USBD_SHORT_XFER_OK) 1199 data->td.td_flags |= LE(OHCI_TD_R); 1200 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1201 data->nexttd = tail; 1202 data->td.td_nexttd = LE(tail->physaddr); 1203 data->td.td_be = LE(LE(data->td.td_cbp) + xfer->length - 1); 1204 data->len = xfer->length; 1205 data->xfer = xfer; 1206 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1207 xfer->hcpriv = data; 1208 xfer->actlen = 0; 1209 1210 ohci_hash_add_td(sc, data); 1211 sed->ed.ed_tailp = LE(tail->physaddr); 1212 opipe->tail.td = tail; 1213 } 1214 } 1215 1216 void 1217 ohci_device_bulk_done(xfer) 1218 usbd_xfer_handle xfer; 1219 { 1220 DPRINTFN(10,("ohci_bulk_done: xfer=%p, actlen=%d\n", 1221 xfer, xfer->actlen)); 1222 1223 xfer->hcpriv = NULL; 1224 } 1225 1226 void 1227 ohci_rhsc(sc, xfer) 1228 ohci_softc_t *sc; 1229 usbd_xfer_handle xfer; 1230 { 1231 usbd_pipe_handle pipe; 1232 struct ohci_pipe *opipe; 1233 u_char *p; 1234 int i, m; 1235 int hstatus; 1236 1237 hstatus = OREAD4(sc, OHCI_RH_STATUS); 1238 DPRINTF(("ohci_rhsc: sc=%p xfer=%p hstatus=0x%08x\n", 1239 sc, xfer, hstatus)); 1240 1241 if (xfer == NULL) { 1242 /* Just ignore the change. */ 1243 return; 1244 } 1245 1246 pipe = xfer->pipe; 1247 opipe = (struct ohci_pipe *)pipe; 1248 1249 p = KERNADDR(&xfer->dmabuf); 1250 m = min(sc->sc_noport, xfer->length * 8 - 1); 1251 memset(p, 0, xfer->length); 1252 for (i = 1; i <= m; i++) { 1253 if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) 1254 p[i/8] |= 1 << (i%8); 1255 } 1256 DPRINTF(("ohci_rhsc: change=0x%02x\n", *p)); 1257 xfer->actlen = xfer->length; 1258 xfer->status = USBD_NORMAL_COMPLETION; 1259 1260 usb_transfer_complete(xfer); 1261 } 1262 1263 void 1264 ohci_root_intr_done(xfer) 1265 usbd_xfer_handle xfer; 1266 { 1267 xfer->hcpriv = NULL; 1268 } 1269 1270 void 1271 ohci_root_ctrl_done(xfer) 1272 usbd_xfer_handle xfer; 1273 { 1274 xfer->hcpriv = NULL; 1275 } 1276 1277 /* 1278 * Wait here until controller claims to have an interrupt. 1279 * Then call ohci_intr and return. Use timeout to avoid waiting 1280 * too long. 1281 */ 1282 void 1283 ohci_waitintr(sc, xfer) 1284 ohci_softc_t *sc; 1285 usbd_xfer_handle xfer; 1286 { 1287 int timo = xfer->timeout; 1288 int usecs; 1289 u_int32_t intrs; 1290 1291 xfer->status = USBD_IN_PROGRESS; 1292 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 1293 usb_delay_ms(&sc->sc_bus, 1); 1294 intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs; 1295 DPRINTFN(15,("ohci_waitintr: 0x%04x\n", intrs)); 1296 #ifdef OHCI_DEBUG 1297 if (ohcidebug > 15) 1298 ohci_dumpregs(sc); 1299 #endif 1300 if (intrs) { 1301 ohci_intr1(sc); 1302 if (xfer->status != USBD_IN_PROGRESS) 1303 return; 1304 } 1305 } 1306 1307 /* Timeout */ 1308 DPRINTF(("ohci_waitintr: timeout\n")); 1309 xfer->status = USBD_TIMEOUT; 1310 usb_transfer_complete(xfer); 1311 /* XXX should free TD */ 1312 } 1313 1314 void 1315 ohci_poll(bus) 1316 struct usbd_bus *bus; 1317 { 1318 ohci_softc_t *sc = (ohci_softc_t *)bus; 1319 1320 if (OREAD4(sc, OHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 1321 ohci_intr1(sc); 1322 } 1323 1324 usbd_status 1325 ohci_device_request(xfer) 1326 usbd_xfer_handle xfer; 1327 { 1328 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1329 usb_device_request_t *req = &xfer->request; 1330 usbd_device_handle dev = opipe->pipe.device; 1331 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1332 int addr = dev->address; 1333 ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail; 1334 ohci_soft_ed_t *sed; 1335 int isread; 1336 int len; 1337 usbd_status err; 1338 int s; 1339 1340 isread = req->bmRequestType & UT_READ; 1341 len = UGETW(req->wLength); 1342 1343 DPRINTFN(3,("ohci_device_control type=0x%02x, request=0x%02x, " 1344 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1345 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1346 UGETW(req->wIndex), len, addr, 1347 opipe->pipe.endpoint->edesc->bEndpointAddress)); 1348 1349 setup = opipe->tail.td; 1350 stat = ohci_alloc_std(sc); 1351 if (stat == NULL) { 1352 err = USBD_NOMEM; 1353 goto bad1; 1354 } 1355 tail = ohci_alloc_std(sc); 1356 if (tail == NULL) { 1357 err = USBD_NOMEM; 1358 goto bad2; 1359 } 1360 tail->xfer = NULL; 1361 1362 sed = opipe->sed; 1363 opipe->u.ctl.length = len; 1364 1365 /* Update device address and length since they may have changed. */ 1366 /* XXX This only needs to be done once, but it's too early in open. */ 1367 sed->ed.ed_flags = LE( 1368 (LE(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) | 1369 OHCI_ED_SET_FA(addr) | 1370 OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize))); 1371 1372 /* Set up data transaction */ 1373 if (len != 0) { 1374 data = ohci_alloc_std(sc); 1375 if (data == NULL) { 1376 err = USBD_NOMEM; 1377 goto bad3; 1378 } 1379 data->td.td_flags = LE( 1380 (isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC | 1381 OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR | 1382 (xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0)); 1383 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 1384 data->nexttd = stat; 1385 data->td.td_nexttd = LE(stat->physaddr); 1386 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 1387 data->len = len; 1388 data->xfer = xfer; 1389 data->flags = OHCI_ADD_LEN; 1390 1391 next = data; 1392 stat->flags = OHCI_CALL_DONE; 1393 } else { 1394 next = stat; 1395 /* XXX ADD_LEN? */ 1396 stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 1397 } 1398 1399 memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req); 1400 1401 setup->td.td_flags = LE(OHCI_TD_SETUP | OHCI_TD_NOCC | 1402 OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR); 1403 setup->td.td_cbp = LE(DMAADDR(&opipe->u.ctl.reqdma)); 1404 setup->nexttd = next; 1405 setup->td.td_nexttd = LE(next->physaddr); 1406 setup->td.td_be = LE(LE(setup->td.td_cbp) + sizeof *req - 1); 1407 setup->len = 0; /* XXX The number of byte we count */ 1408 setup->xfer = xfer; 1409 setup->flags = 0; 1410 xfer->hcpriv = setup; 1411 1412 stat->td.td_flags = LE( 1413 (isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC | 1414 OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1)); 1415 stat->td.td_cbp = 0; 1416 stat->nexttd = tail; 1417 stat->td.td_nexttd = LE(tail->physaddr); 1418 stat->td.td_be = 0; 1419 stat->len = 0; 1420 stat->xfer = xfer; 1421 1422 #ifdef OHCI_DEBUG 1423 if (ohcidebug > 5) { 1424 DPRINTF(("ohci_device_request:\n")); 1425 ohci_dump_ed(sed); 1426 ohci_dump_tds(setup); 1427 } 1428 #endif 1429 1430 /* Insert ED in schedule */ 1431 s = splusb(); 1432 ohci_hash_add_td(sc, setup); 1433 if (len != 0) 1434 ohci_hash_add_td(sc, data); 1435 ohci_hash_add_td(sc, stat); 1436 sed->ed.ed_tailp = LE(tail->physaddr); 1437 opipe->tail.td = tail; 1438 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF); 1439 if (xfer->timeout && !sc->sc_bus.use_polling) { 1440 usb_timeout(ohci_timeout, xfer, 1441 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 1442 } 1443 splx(s); 1444 1445 #ifdef OHCI_DEBUG 1446 if (ohcidebug > 5) { 1447 usb_delay_ms(&sc->sc_bus, 5); 1448 DPRINTF(("ohci_device_request: status=%x\n", 1449 OREAD4(sc, OHCI_COMMAND_STATUS))); 1450 ohci_dump_ed(sed); 1451 ohci_dump_tds(setup); 1452 } 1453 #endif 1454 1455 return (USBD_NORMAL_COMPLETION); 1456 1457 bad3: 1458 ohci_free_std(sc, tail); 1459 bad2: 1460 ohci_free_std(sc, stat); 1461 bad1: 1462 return (err); 1463 } 1464 1465 /* 1466 * Add an ED to the schedule. Called at splusb(). 1467 */ 1468 void 1469 ohci_add_ed(sed, head) 1470 ohci_soft_ed_t *sed; 1471 ohci_soft_ed_t *head; 1472 { 1473 SPLUSBCHECK; 1474 sed->next = head->next; 1475 sed->ed.ed_nexted = head->ed.ed_nexted; 1476 head->next = sed; 1477 head->ed.ed_nexted = LE(sed->physaddr); 1478 } 1479 1480 /* 1481 * Remove an ED from the schedule. Called at splusb(). 1482 */ 1483 void 1484 ohci_rem_ed(sed, head) 1485 ohci_soft_ed_t *sed; 1486 ohci_soft_ed_t *head; 1487 { 1488 ohci_soft_ed_t *p; 1489 1490 SPLUSBCHECK; 1491 1492 /* XXX */ 1493 for (p = head; p == NULL && p->next != sed; p = p->next) 1494 ; 1495 if (p == NULL) 1496 panic("ohci_rem_ed: ED not found\n"); 1497 p->next = sed->next; 1498 p->ed.ed_nexted = sed->ed.ed_nexted; 1499 } 1500 1501 /* 1502 * When a transfer is completed the TD is added to the done queue by 1503 * the host controller. This queue is the processed by software. 1504 * Unfortunately the queue contains the physical address of the TD 1505 * and we have no simple way to translate this back to a kernel address. 1506 * To make the translation possible (and fast) we use a hash table of 1507 * TDs currently in the schedule. The physical address is used as the 1508 * hash value. 1509 */ 1510 1511 #define HASH(a) (((a) >> 4) % OHCI_HASH_SIZE) 1512 /* Called at splusb() */ 1513 void 1514 ohci_hash_add_td(sc, std) 1515 ohci_softc_t *sc; 1516 ohci_soft_td_t *std; 1517 { 1518 int h = HASH(std->physaddr); 1519 1520 SPLUSBCHECK; 1521 1522 LIST_INSERT_HEAD(&sc->sc_hash_tds[h], std, hnext); 1523 } 1524 1525 /* Called at splusb() */ 1526 void 1527 ohci_hash_rem_td(sc, std) 1528 ohci_softc_t *sc; 1529 ohci_soft_td_t *std; 1530 { 1531 SPLUSBCHECK; 1532 1533 LIST_REMOVE(std, hnext); 1534 } 1535 1536 ohci_soft_td_t * 1537 ohci_hash_find_td(sc, a) 1538 ohci_softc_t *sc; 1539 ohci_physaddr_t a; 1540 { 1541 int h = HASH(a); 1542 ohci_soft_td_t *std; 1543 1544 for (std = LIST_FIRST(&sc->sc_hash_tds[h]); 1545 std != NULL; 1546 std = LIST_NEXT(std, hnext)) 1547 if (std->physaddr == a) 1548 return (std); 1549 panic("ohci_hash_find_td: addr 0x%08lx not found\n", (u_long)a); 1550 } 1551 1552 void 1553 ohci_timeout(addr) 1554 void *addr; 1555 { 1556 usbd_xfer_handle xfer = addr; 1557 int s; 1558 1559 DPRINTF(("ohci_timeout: xfer=%p\n", xfer)); 1560 1561 s = splusb(); 1562 xfer->device->bus->intr_context++; 1563 ohci_abort_xfer(xfer, USBD_TIMEOUT); 1564 xfer->device->bus->intr_context--; 1565 splx(s); 1566 } 1567 1568 #ifdef OHCI_DEBUG 1569 void 1570 ohci_dump_tds(std) 1571 ohci_soft_td_t *std; 1572 { 1573 for (; std; std = std->nexttd) 1574 ohci_dump_td(std); 1575 } 1576 1577 void 1578 ohci_dump_td(std) 1579 ohci_soft_td_t *std; 1580 { 1581 DPRINTF(("TD(%p) at %08lx: %b delay=%d ec=%d cc=%d\ncbp=0x%08lx " 1582 "nexttd=0x%08lx be=0x%08lx\n", 1583 std, (u_long)std->physaddr, 1584 (int)LE(std->td.td_flags), 1585 "\20\23R\24OUT\25IN\31TOG1\32SETTOGGLE", 1586 OHCI_TD_GET_DI(LE(std->td.td_flags)), 1587 OHCI_TD_GET_EC(LE(std->td.td_flags)), 1588 OHCI_TD_GET_CC(LE(std->td.td_flags)), 1589 (u_long)LE(std->td.td_cbp), 1590 (u_long)LE(std->td.td_nexttd), (u_long)LE(std->td.td_be))); 1591 } 1592 1593 void 1594 ohci_dump_ed(sed) 1595 ohci_soft_ed_t *sed; 1596 { 1597 DPRINTF(("ED(%p) at %08lx: addr=%d endpt=%d maxp=%d %b\ntailp=0x%08lx " 1598 "headp=%b nexted=0x%08lx\n", 1599 sed, (u_long)sed->physaddr, 1600 OHCI_ED_GET_FA(LE(sed->ed.ed_flags)), 1601 OHCI_ED_GET_EN(LE(sed->ed.ed_flags)), 1602 OHCI_ED_GET_MAXP(LE(sed->ed.ed_flags)), 1603 (int)LE(sed->ed.ed_flags), 1604 "\20\14OUT\15IN\16LOWSPEED\17SKIP\20ISO", 1605 (u_long)LE(sed->ed.ed_tailp), 1606 (u_long)LE(sed->ed.ed_headp), 1607 "\20\1HALT\2CARRY", 1608 (u_long)LE(sed->ed.ed_nexted))); 1609 } 1610 #endif 1611 1612 usbd_status 1613 ohci_open(pipe) 1614 usbd_pipe_handle pipe; 1615 { 1616 usbd_device_handle dev = pipe->device; 1617 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 1618 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1619 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1620 u_int8_t addr = dev->address; 1621 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1622 ohci_soft_ed_t *sed; 1623 ohci_soft_td_t *std; 1624 ohci_soft_itd_t *sitd; 1625 ohci_physaddr_t tdphys; 1626 u_int32_t fmt; 1627 usbd_status err; 1628 int s; 1629 int ival; 1630 1631 DPRINTFN(1, ("ohci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1632 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1633 if (addr == sc->sc_addr) { 1634 switch (ed->bEndpointAddress) { 1635 case USB_CONTROL_ENDPOINT: 1636 pipe->methods = &ohci_root_ctrl_methods; 1637 break; 1638 case UE_DIR_IN | OHCI_INTR_ENDPT: 1639 pipe->methods = &ohci_root_intr_methods; 1640 break; 1641 default: 1642 return (USBD_INVAL); 1643 } 1644 } else { 1645 sed = ohci_alloc_sed(sc); 1646 if (sed == NULL) 1647 goto bad0; 1648 opipe->sed = sed; 1649 if (xfertype == UE_ISOCHRONOUS) { 1650 sitd = ohci_alloc_sitd(sc); 1651 if (sitd == NULL) { 1652 ohci_free_sitd(sc, sitd); 1653 goto bad1; 1654 } 1655 opipe->tail.itd = sitd; 1656 tdphys = LE(sitd->physaddr); 1657 fmt = OHCI_ED_FORMAT_ISO; 1658 } else { 1659 std = ohci_alloc_std(sc); 1660 if (std == NULL) { 1661 ohci_free_std(sc, std); 1662 goto bad1; 1663 } 1664 opipe->tail.td = std; 1665 tdphys = LE(std->physaddr); 1666 fmt = OHCI_ED_FORMAT_GEN; 1667 } 1668 sed->ed.ed_flags = LE( 1669 OHCI_ED_SET_FA(addr) | 1670 OHCI_ED_SET_EN(ed->bEndpointAddress) | 1671 OHCI_ED_DIR_TD | 1672 (dev->lowspeed ? OHCI_ED_SPEED : 0) | fmt | 1673 OHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 1674 sed->ed.ed_headp = sed->ed.ed_tailp = tdphys; 1675 1676 switch (xfertype) { 1677 case UE_CONTROL: 1678 pipe->methods = &ohci_device_ctrl_methods; 1679 err = usb_allocmem(&sc->sc_bus, 1680 sizeof(usb_device_request_t), 1681 0, &opipe->u.ctl.reqdma); 1682 if (err) 1683 goto bad; 1684 s = splusb(); 1685 ohci_add_ed(sed, sc->sc_ctrl_head); 1686 splx(s); 1687 break; 1688 case UE_INTERRUPT: 1689 pipe->methods = &ohci_device_intr_methods; 1690 ival = pipe->interval; 1691 if (ival == USBD_DEFAULT_INTERVAL) 1692 ival = ed->bInterval; 1693 return (ohci_device_setintr(sc, opipe, ival)); 1694 case UE_ISOCHRONOUS: 1695 pipe->methods = &ohci_device_isoc_methods; 1696 return (ohci_setup_isoc(pipe)); 1697 case UE_BULK: 1698 pipe->methods = &ohci_device_bulk_methods; 1699 s = splusb(); 1700 ohci_add_ed(sed, sc->sc_bulk_head); 1701 splx(s); 1702 break; 1703 } 1704 } 1705 return (USBD_NORMAL_COMPLETION); 1706 1707 bad: 1708 ohci_free_std(sc, std); 1709 bad1: 1710 ohci_free_sed(sc, sed); 1711 bad0: 1712 return (USBD_NOMEM); 1713 1714 } 1715 1716 /* 1717 * Close a reqular pipe. 1718 * Assumes that there are no pending transactions. 1719 */ 1720 void 1721 ohci_close_pipe(pipe, head) 1722 usbd_pipe_handle pipe; 1723 ohci_soft_ed_t *head; 1724 { 1725 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 1726 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 1727 ohci_soft_ed_t *sed = opipe->sed; 1728 int s; 1729 1730 s = splusb(); 1731 #ifdef DIAGNOSTIC 1732 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 1733 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1734 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) { 1735 ohci_physaddr_t td = sed->ed.ed_headp; 1736 ohci_soft_td_t *std; 1737 for (std = LIST_FIRST(&sc->sc_hash_tds[HASH(td)]); 1738 std != NULL; 1739 std = LIST_NEXT(std, hnext)) 1740 if (std->physaddr == td) 1741 break; 1742 printf("ohci_close_pipe: pipe not empty sed=%p hd=0x%x " 1743 "tl=0x%x pipe=%p, std=%p\n", sed, 1744 (int)LE(sed->ed.ed_headp), (int)LE(sed->ed.ed_tailp), 1745 pipe, std); 1746 usb_delay_ms(&sc->sc_bus, 2); 1747 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 1748 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 1749 printf("ohci_close_pipe: pipe still not empty\n"); 1750 } 1751 #endif 1752 ohci_rem_ed(sed, head); 1753 splx(s); 1754 ohci_free_sed(sc, opipe->sed); 1755 } 1756 1757 /* 1758 * Abort a device request. 1759 * If this routine is called at splusb() it guarantees that the request 1760 * will be removed from the hardware scheduling and that the callback 1761 * for it will be called with USBD_CANCELLED status. 1762 * It's impossible to guarantee that the requested transfer will not 1763 * have happened since the hardware runs concurrently. 1764 * If the transaction has already happened we rely on the ordinary 1765 * interrupt processing to process it. 1766 */ 1767 void 1768 ohci_abort_xfer(xfer, status) 1769 usbd_xfer_handle xfer; 1770 usbd_status status; 1771 { 1772 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1773 ohci_soft_ed_t *sed; 1774 1775 DPRINTF(("ohci_abort_xfer: xfer=%p pipe=%p\n", xfer, opipe)); 1776 1777 xfer->status = status; 1778 1779 usb_untimeout(ohci_timeout, xfer, xfer->timo_handle); 1780 1781 sed = opipe->sed; 1782 DPRINTFN(1,("ohci_abort_xfer: stop ed=%p\n", sed)); 1783 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); /* force hardware skip */ 1784 1785 #if 1 1786 if (xfer->device->bus->intr_context) { 1787 /* We have no process context, so we can't use tsleep(). */ 1788 timeout(ohci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1789 } else { 1790 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1791 KASSERT(intr_nesting_level == 0, 1792 ("ohci_abort_req in interrupt context")); 1793 #endif 1794 usb_delay_ms(opipe->pipe.device->bus, 1); 1795 ohci_abort_xfer_end(xfer); 1796 } 1797 #else 1798 delay(1000); 1799 ohci_abort_xfer_end(xfer); 1800 #endif 1801 } 1802 1803 void 1804 ohci_abort_xfer_end(v) 1805 void *v; 1806 { 1807 usbd_xfer_handle xfer = v; 1808 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 1809 ohci_softc_t *sc = (ohci_softc_t *)opipe->pipe.device->bus; 1810 ohci_soft_ed_t *sed; 1811 ohci_soft_td_t *p, *n; 1812 int s; 1813 1814 s = splusb(); 1815 1816 p = xfer->hcpriv; 1817 #ifdef DIAGNOSTIC 1818 if (p == NULL) { 1819 printf("ohci_abort_xfer: hcpriv==0\n"); 1820 return; 1821 } 1822 #endif 1823 for (; p->xfer == xfer; p = n) { 1824 n = p->nexttd; 1825 ohci_hash_rem_td(sc, p); 1826 ohci_free_std(sc, p); 1827 } 1828 1829 sed = opipe->sed; 1830 DPRINTFN(2,("ohci_abort_xfer: set hd=%x, tl=%x\n", 1831 (int)LE(p->physaddr), (int)LE(sed->ed.ed_tailp))); 1832 sed->ed.ed_headp = p->physaddr; /* unlink TDs */ 1833 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); /* remove hardware skip */ 1834 1835 usb_transfer_complete(xfer); 1836 1837 splx(s); 1838 } 1839 1840 /* 1841 * Data structures and routines to emulate the root hub. 1842 */ 1843 static usb_device_descriptor_t ohci_devd = { 1844 USB_DEVICE_DESCRIPTOR_SIZE, 1845 UDESC_DEVICE, /* type */ 1846 {0x00, 0x01}, /* USB version */ 1847 UCLASS_HUB, /* class */ 1848 USUBCLASS_HUB, /* subclass */ 1849 0, /* protocol */ 1850 64, /* max packet */ 1851 {0},{0},{0x00,0x01}, /* device id */ 1852 1,2,0, /* string indicies */ 1853 1 /* # of configurations */ 1854 }; 1855 1856 static usb_config_descriptor_t ohci_confd = { 1857 USB_CONFIG_DESCRIPTOR_SIZE, 1858 UDESC_CONFIG, 1859 {USB_CONFIG_DESCRIPTOR_SIZE + 1860 USB_INTERFACE_DESCRIPTOR_SIZE + 1861 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1862 1, 1863 1, 1864 0, 1865 UC_SELF_POWERED, 1866 0 /* max power */ 1867 }; 1868 1869 static usb_interface_descriptor_t ohci_ifcd = { 1870 USB_INTERFACE_DESCRIPTOR_SIZE, 1871 UDESC_INTERFACE, 1872 0, 1873 0, 1874 1, 1875 UCLASS_HUB, 1876 USUBCLASS_HUB, 1877 0, 1878 0 1879 }; 1880 1881 static usb_endpoint_descriptor_t ohci_endpd = { 1882 USB_ENDPOINT_DESCRIPTOR_SIZE, 1883 UDESC_ENDPOINT, 1884 UE_DIR_IN | OHCI_INTR_ENDPT, 1885 UE_INTERRUPT, 1886 {8, 0}, /* max packet */ 1887 255 1888 }; 1889 1890 static usb_hub_descriptor_t ohci_hubd = { 1891 USB_HUB_DESCRIPTOR_SIZE, 1892 UDESC_HUB, 1893 0, 1894 {0,0}, 1895 0, 1896 0, 1897 {0}, 1898 }; 1899 1900 static int 1901 ohci_str(p, l, s) 1902 usb_string_descriptor_t *p; 1903 int l; 1904 char *s; 1905 { 1906 int i; 1907 1908 if (l == 0) 1909 return (0); 1910 p->bLength = 2 * strlen(s) + 2; 1911 if (l == 1) 1912 return (1); 1913 p->bDescriptorType = UDESC_STRING; 1914 l -= 2; 1915 for (i = 0; s[i] && l > 1; i++, l -= 2) 1916 USETW2(p->bString[i], 0, s[i]); 1917 return (2*i+2); 1918 } 1919 1920 /* 1921 * Simulate a hardware hub by handling all the necessary requests. 1922 */ 1923 static usbd_status 1924 ohci_root_ctrl_transfer(xfer) 1925 usbd_xfer_handle xfer; 1926 { 1927 usbd_status err; 1928 1929 /* Insert last in queue. */ 1930 err = usb_insert_transfer(xfer); 1931 if (err) 1932 return (err); 1933 1934 /* Pipe isn't running, start first */ 1935 return (ohci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1936 } 1937 1938 static usbd_status 1939 ohci_root_ctrl_start(xfer) 1940 usbd_xfer_handle xfer; 1941 { 1942 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 1943 usb_device_request_t *req; 1944 void *buf = NULL; 1945 int port, i; 1946 int s, len, value, index, l, totlen = 0; 1947 usb_port_status_t ps; 1948 usb_hub_descriptor_t hubd; 1949 usbd_status err; 1950 u_int32_t v; 1951 1952 #ifdef DIAGNOSTIC 1953 if (!(xfer->rqflags & URQ_REQUEST)) 1954 /* XXX panic */ 1955 return (USBD_INVAL); 1956 #endif 1957 req = &xfer->request; 1958 1959 DPRINTFN(4,("ohci_root_ctrl_control type=0x%02x request=%02x\n", 1960 req->bmRequestType, req->bRequest)); 1961 1962 len = UGETW(req->wLength); 1963 value = UGETW(req->wValue); 1964 index = UGETW(req->wIndex); 1965 1966 if (len != 0) 1967 buf = KERNADDR(&xfer->dmabuf); 1968 1969 #define C(x,y) ((x) | ((y) << 8)) 1970 switch(C(req->bRequest, req->bmRequestType)) { 1971 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1972 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1973 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1974 /* 1975 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1976 * for the integrated root hub. 1977 */ 1978 break; 1979 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1980 if (len > 0) { 1981 *(u_int8_t *)buf = sc->sc_conf; 1982 totlen = 1; 1983 } 1984 break; 1985 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1986 DPRINTFN(8,("ohci_root_ctrl_control wValue=0x%04x\n", value)); 1987 switch(value >> 8) { 1988 case UDESC_DEVICE: 1989 if ((value & 0xff) != 0) { 1990 err = USBD_IOERROR; 1991 goto ret; 1992 } 1993 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1994 USETW(ohci_devd.idVendor, sc->sc_id_vendor); 1995 memcpy(buf, &ohci_devd, l); 1996 break; 1997 case UDESC_CONFIG: 1998 if ((value & 0xff) != 0) { 1999 err = USBD_IOERROR; 2000 goto ret; 2001 } 2002 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2003 memcpy(buf, &ohci_confd, l); 2004 buf = (char *)buf + l; 2005 len -= l; 2006 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2007 totlen += l; 2008 memcpy(buf, &ohci_ifcd, l); 2009 buf = (char *)buf + l; 2010 len -= l; 2011 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2012 totlen += l; 2013 memcpy(buf, &ohci_endpd, l); 2014 break; 2015 case UDESC_STRING: 2016 if (len == 0) 2017 break; 2018 *(u_int8_t *)buf = 0; 2019 totlen = 1; 2020 switch (value & 0xff) { 2021 case 1: /* Vendor */ 2022 totlen = ohci_str(buf, len, sc->sc_vendor); 2023 break; 2024 case 2: /* Product */ 2025 totlen = ohci_str(buf, len, "OHCI root hub"); 2026 break; 2027 } 2028 break; 2029 default: 2030 err = USBD_IOERROR; 2031 goto ret; 2032 } 2033 break; 2034 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2035 if (len > 0) { 2036 *(u_int8_t *)buf = 0; 2037 totlen = 1; 2038 } 2039 break; 2040 case C(UR_GET_STATUS, UT_READ_DEVICE): 2041 if (len > 1) { 2042 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2043 totlen = 2; 2044 } 2045 break; 2046 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2047 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2048 if (len > 1) { 2049 USETW(((usb_status_t *)buf)->wStatus, 0); 2050 totlen = 2; 2051 } 2052 break; 2053 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2054 if (value >= USB_MAX_DEVICES) { 2055 err = USBD_IOERROR; 2056 goto ret; 2057 } 2058 sc->sc_addr = value; 2059 break; 2060 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2061 if (value != 0 && value != 1) { 2062 err = USBD_IOERROR; 2063 goto ret; 2064 } 2065 sc->sc_conf = value; 2066 break; 2067 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2068 break; 2069 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2070 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2071 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2072 err = USBD_IOERROR; 2073 goto ret; 2074 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2075 break; 2076 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2077 break; 2078 /* Hub requests */ 2079 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2080 break; 2081 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2082 DPRINTFN(8, ("ohci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2083 "port=%d feature=%d\n", 2084 index, value)); 2085 if (index < 1 || index > sc->sc_noport) { 2086 err = USBD_IOERROR; 2087 goto ret; 2088 } 2089 port = OHCI_RH_PORT_STATUS(index); 2090 switch(value) { 2091 case UHF_PORT_ENABLE: 2092 OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS); 2093 break; 2094 case UHF_PORT_SUSPEND: 2095 OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR); 2096 break; 2097 case UHF_PORT_POWER: 2098 OWRITE4(sc, port, UPS_LOW_SPEED); 2099 break; 2100 case UHF_C_PORT_CONNECTION: 2101 OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16); 2102 break; 2103 case UHF_C_PORT_ENABLE: 2104 OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16); 2105 break; 2106 case UHF_C_PORT_SUSPEND: 2107 OWRITE4(sc, port, UPS_C_SUSPEND << 16); 2108 break; 2109 case UHF_C_PORT_OVER_CURRENT: 2110 OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16); 2111 break; 2112 case UHF_C_PORT_RESET: 2113 OWRITE4(sc, port, UPS_C_PORT_RESET << 16); 2114 break; 2115 default: 2116 err = USBD_IOERROR; 2117 goto ret; 2118 } 2119 switch(value) { 2120 case UHF_C_PORT_CONNECTION: 2121 case UHF_C_PORT_ENABLE: 2122 case UHF_C_PORT_SUSPEND: 2123 case UHF_C_PORT_OVER_CURRENT: 2124 case UHF_C_PORT_RESET: 2125 /* Enable RHSC interrupt if condition is cleared. */ 2126 if ((OREAD4(sc, port) >> 16) == 0) 2127 ohci_rhsc_able(sc, 1); 2128 break; 2129 default: 2130 break; 2131 } 2132 break; 2133 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2134 if (value != 0) { 2135 err = USBD_IOERROR; 2136 goto ret; 2137 } 2138 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); 2139 hubd = ohci_hubd; 2140 hubd.bNbrPorts = sc->sc_noport; 2141 USETW(hubd.wHubCharacteristics, 2142 (v & OHCI_NPS ? UHD_PWR_NO_SWITCH : 2143 v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL) 2144 /* XXX overcurrent */ 2145 ); 2146 hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v); 2147 v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B); 2148 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 2149 hubd.DeviceRemovable[i++] = (u_int8_t)v; 2150 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 2151 l = min(len, hubd.bDescLength); 2152 totlen = l; 2153 memcpy(buf, &hubd, l); 2154 break; 2155 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2156 if (len != 4) { 2157 err = USBD_IOERROR; 2158 goto ret; 2159 } 2160 memset(buf, 0, len); /* ? XXX */ 2161 totlen = len; 2162 break; 2163 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2164 DPRINTFN(8,("ohci_root_ctrl_transfer: get port status i=%d\n", 2165 index)); 2166 if (index < 1 || index > sc->sc_noport) { 2167 err = USBD_IOERROR; 2168 goto ret; 2169 } 2170 if (len != 4) { 2171 err = USBD_IOERROR; 2172 goto ret; 2173 } 2174 v = OREAD4(sc, OHCI_RH_PORT_STATUS(index)); 2175 DPRINTFN(8,("ohci_root_ctrl_transfer: port status=0x%04x\n", 2176 v)); 2177 USETW(ps.wPortStatus, v); 2178 USETW(ps.wPortChange, v >> 16); 2179 l = min(len, sizeof ps); 2180 memcpy(buf, &ps, l); 2181 totlen = l; 2182 break; 2183 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2184 err = USBD_IOERROR; 2185 goto ret; 2186 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2187 break; 2188 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2189 if (index < 1 || index > sc->sc_noport) { 2190 err = USBD_IOERROR; 2191 goto ret; 2192 } 2193 port = OHCI_RH_PORT_STATUS(index); 2194 switch(value) { 2195 case UHF_PORT_ENABLE: 2196 OWRITE4(sc, port, UPS_PORT_ENABLED); 2197 break; 2198 case UHF_PORT_SUSPEND: 2199 OWRITE4(sc, port, UPS_SUSPEND); 2200 break; 2201 case UHF_PORT_RESET: 2202 DPRINTFN(5,("ohci_root_ctrl_transfer: reset port %d\n", 2203 index)); 2204 OWRITE4(sc, port, UPS_RESET); 2205 for (i = 0; i < 10; i++) { 2206 usb_delay_ms(&sc->sc_bus, 10); 2207 if ((OREAD4(sc, port) & UPS_RESET) == 0) 2208 break; 2209 } 2210 DPRINTFN(8,("ohci port %d reset, status = 0x%04x\n", 2211 index, OREAD4(sc, port))); 2212 break; 2213 case UHF_PORT_POWER: 2214 DPRINTFN(2,("ohci_root_ctrl_transfer: set port power " 2215 "%d\n", index)); 2216 OWRITE4(sc, port, UPS_PORT_POWER); 2217 break; 2218 default: 2219 err = USBD_IOERROR; 2220 goto ret; 2221 } 2222 break; 2223 default: 2224 err = USBD_IOERROR; 2225 goto ret; 2226 } 2227 xfer->actlen = totlen; 2228 err = USBD_NORMAL_COMPLETION; 2229 ret: 2230 xfer->status = err; 2231 s = splusb(); 2232 usb_transfer_complete(xfer); 2233 splx(s); 2234 return (USBD_IN_PROGRESS); 2235 } 2236 2237 /* Abort a root control request. */ 2238 static void 2239 ohci_root_ctrl_abort(xfer) 2240 usbd_xfer_handle xfer; 2241 { 2242 /* Nothing to do, all transfers are synchronous. */ 2243 } 2244 2245 /* Close the root pipe. */ 2246 static void 2247 ohci_root_ctrl_close(pipe) 2248 usbd_pipe_handle pipe; 2249 { 2250 DPRINTF(("ohci_root_ctrl_close\n")); 2251 /* Nothing to do. */ 2252 } 2253 2254 static usbd_status 2255 ohci_root_intr_transfer(xfer) 2256 usbd_xfer_handle xfer; 2257 { 2258 usbd_status err; 2259 2260 /* Insert last in queue. */ 2261 err = usb_insert_transfer(xfer); 2262 if (err) 2263 return (err); 2264 2265 /* Pipe isn't running, start first */ 2266 return (ohci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2267 } 2268 2269 static usbd_status 2270 ohci_root_intr_start(xfer) 2271 usbd_xfer_handle xfer; 2272 { 2273 usbd_pipe_handle pipe = xfer->pipe; 2274 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2275 2276 sc->sc_intrxfer = xfer; 2277 2278 return (USBD_IN_PROGRESS); 2279 } 2280 2281 /* Abort a root interrupt request. */ 2282 static void 2283 ohci_root_intr_abort(xfer) 2284 usbd_xfer_handle xfer; 2285 { 2286 int s; 2287 2288 if (xfer->pipe->intrxfer == xfer) { 2289 DPRINTF(("ohci_root_intr_abort: remove\n")); 2290 xfer->pipe->intrxfer = NULL; 2291 } 2292 xfer->status = USBD_CANCELLED; 2293 s = splusb(); 2294 usb_transfer_complete(xfer); 2295 splx(s); 2296 } 2297 2298 /* Close the root pipe. */ 2299 static void 2300 ohci_root_intr_close(pipe) 2301 usbd_pipe_handle pipe; 2302 { 2303 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2304 2305 DPRINTF(("ohci_root_intr_close\n")); 2306 2307 sc->sc_intrxfer = NULL; 2308 } 2309 2310 /************************/ 2311 2312 static usbd_status 2313 ohci_device_ctrl_transfer(xfer) 2314 usbd_xfer_handle xfer; 2315 { 2316 usbd_status err; 2317 2318 /* Insert last in queue. */ 2319 err = usb_insert_transfer(xfer); 2320 if (err) 2321 return (err); 2322 2323 /* Pipe isn't running, start first */ 2324 return (ohci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2325 } 2326 2327 static usbd_status 2328 ohci_device_ctrl_start(xfer) 2329 usbd_xfer_handle xfer; 2330 { 2331 ohci_softc_t *sc = (ohci_softc_t *)xfer->pipe->device->bus; 2332 usbd_status err; 2333 2334 #ifdef DIAGNOSTIC 2335 if (!(xfer->rqflags & URQ_REQUEST)) { 2336 /* XXX panic */ 2337 printf("ohci_device_ctrl_transfer: not a request\n"); 2338 return (USBD_INVAL); 2339 } 2340 #endif 2341 2342 err = ohci_device_request(xfer); 2343 if (err) 2344 return (err); 2345 2346 if (sc->sc_bus.use_polling) 2347 ohci_waitintr(sc, xfer); 2348 return (USBD_IN_PROGRESS); 2349 } 2350 2351 /* Abort a device control request. */ 2352 static void 2353 ohci_device_ctrl_abort(xfer) 2354 usbd_xfer_handle xfer; 2355 { 2356 DPRINTF(("ohci_device_ctrl_abort: xfer=%p\n", xfer)); 2357 ohci_abort_xfer(xfer, USBD_CANCELLED); 2358 } 2359 2360 /* Close a device control pipe. */ 2361 static void 2362 ohci_device_ctrl_close(pipe) 2363 usbd_pipe_handle pipe; 2364 { 2365 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2366 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2367 2368 DPRINTF(("ohci_device_ctrl_close: pipe=%p\n", pipe)); 2369 ohci_close_pipe(pipe, sc->sc_ctrl_head); 2370 ohci_free_std(sc, opipe->tail.td); 2371 } 2372 2373 /************************/ 2374 2375 static void 2376 ohci_device_clear_toggle(pipe) 2377 usbd_pipe_handle pipe; 2378 { 2379 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2380 2381 opipe->sed->ed.ed_headp &= LE(~OHCI_TOGGLECARRY); 2382 } 2383 2384 static void 2385 ohci_noop(pipe) 2386 usbd_pipe_handle pipe; 2387 { 2388 } 2389 2390 static usbd_status 2391 ohci_device_bulk_transfer(xfer) 2392 usbd_xfer_handle xfer; 2393 { 2394 usbd_status err; 2395 2396 /* Insert last in queue. */ 2397 err = usb_insert_transfer(xfer); 2398 if (err) 2399 return (err); 2400 2401 /* Pipe isn't running, start first */ 2402 return (ohci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2403 } 2404 2405 static usbd_status 2406 ohci_device_bulk_start(xfer) 2407 usbd_xfer_handle xfer; 2408 { 2409 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2410 usbd_device_handle dev = opipe->pipe.device; 2411 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2412 int addr = dev->address; 2413 ohci_soft_td_t *data, *tail, *tdp; 2414 ohci_soft_ed_t *sed; 2415 int s, len, isread, endpt; 2416 usbd_status err; 2417 2418 #ifdef DIAGNOSTIC 2419 if (xfer->rqflags & URQ_REQUEST) { 2420 /* XXX panic */ 2421 printf("ohci_device_bulk_start: a request\n"); 2422 return (USBD_INVAL); 2423 } 2424 #endif 2425 2426 len = xfer->length; 2427 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 2428 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2429 sed = opipe->sed; 2430 2431 DPRINTFN(4,("ohci_device_bulk_start: xfer=%p len=%d isread=%d " 2432 "flags=%d endpt=%d\n", xfer, len, isread, xfer->flags, 2433 endpt)); 2434 2435 opipe->u.bulk.isread = isread; 2436 opipe->u.bulk.length = len; 2437 2438 /* Update device address */ 2439 sed->ed.ed_flags = LE( 2440 (LE(sed->ed.ed_flags) & ~OHCI_ED_ADDRMASK) | 2441 OHCI_ED_SET_FA(addr)); 2442 2443 /* Allocate a chain of new TDs (including a new tail). */ 2444 data = opipe->tail.td; 2445 err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags, 2446 &xfer->dmabuf, data, &tail); 2447 if (err) 2448 return (err); 2449 2450 tail->xfer = NULL; 2451 xfer->hcpriv = data; 2452 2453 DPRINTFN(4,("ohci_device_bulk_start: ed_flags=0x%08x td_flags=0x%08x " 2454 "td_cbp=0x%08x td_be=0x%08x\n", 2455 (int)LE(sed->ed.ed_flags), (int)LE(data->td.td_flags), 2456 (int)LE(data->td.td_cbp), (int)LE(data->td.td_be))); 2457 2458 #ifdef OHCI_DEBUG 2459 if (ohcidebug > 4) { 2460 ohci_dump_ed(sed); 2461 ohci_dump_tds(data); 2462 } 2463 #endif 2464 2465 /* Insert ED in schedule */ 2466 s = splusb(); 2467 for (tdp = data; tdp != tail; tdp = tdp->nexttd) { 2468 tdp->xfer = xfer; 2469 ohci_hash_add_td(sc, tdp); 2470 } 2471 sed->ed.ed_tailp = LE(tail->physaddr); 2472 opipe->tail.td = tail; 2473 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2474 OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF); 2475 if (xfer->timeout && !sc->sc_bus.use_polling) { 2476 usb_timeout(ohci_timeout, xfer, 2477 MS_TO_TICKS(xfer->timeout), xfer->timo_handle); 2478 } 2479 2480 #if 0 2481 /* This goes wrong if we are too slow. */ 2482 if (ohcidebug > 5) { 2483 usb_delay_ms(&sc->sc_bus, 5); 2484 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2485 OREAD4(sc, OHCI_COMMAND_STATUS))); 2486 ohci_dump_ed(sed); 2487 ohci_dump_tds(data); 2488 } 2489 #endif 2490 2491 splx(s); 2492 2493 return (USBD_IN_PROGRESS); 2494 } 2495 2496 static void 2497 ohci_device_bulk_abort(xfer) 2498 usbd_xfer_handle xfer; 2499 { 2500 DPRINTF(("ohci_device_bulk_abort: xfer=%p\n", xfer)); 2501 ohci_abort_xfer(xfer, USBD_CANCELLED); 2502 } 2503 2504 /* 2505 * Close a device bulk pipe. 2506 */ 2507 static void 2508 ohci_device_bulk_close(pipe) 2509 usbd_pipe_handle pipe; 2510 { 2511 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2512 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2513 2514 DPRINTF(("ohci_device_bulk_close: pipe=%p\n", pipe)); 2515 ohci_close_pipe(pipe, sc->sc_bulk_head); 2516 ohci_free_std(sc, opipe->tail.td); 2517 } 2518 2519 /************************/ 2520 2521 static usbd_status 2522 ohci_device_intr_transfer(xfer) 2523 usbd_xfer_handle xfer; 2524 { 2525 usbd_status err; 2526 2527 /* Insert last in queue. */ 2528 err = usb_insert_transfer(xfer); 2529 if (err) 2530 return (err); 2531 2532 /* Pipe isn't running, start first */ 2533 return (ohci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2534 } 2535 2536 static usbd_status 2537 ohci_device_intr_start(xfer) 2538 usbd_xfer_handle xfer; 2539 { 2540 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2541 usbd_device_handle dev = opipe->pipe.device; 2542 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2543 ohci_soft_ed_t *sed = opipe->sed; 2544 ohci_soft_td_t *data, *tail; 2545 int len; 2546 int s; 2547 2548 DPRINTFN(3, ("ohci_device_intr_transfer: xfer=%p len=%d " 2549 "flags=%d priv=%p\n", 2550 xfer, xfer->length, xfer->flags, xfer->priv)); 2551 2552 #ifdef DIAGNOSTIC 2553 if (xfer->rqflags & URQ_REQUEST) 2554 panic("ohci_device_intr_transfer: a request\n"); 2555 #endif 2556 2557 len = xfer->length; 2558 2559 data = opipe->tail.td; 2560 tail = ohci_alloc_std(sc); 2561 if (tail == NULL) 2562 return (USBD_NOMEM); 2563 tail->xfer = NULL; 2564 2565 data->td.td_flags = LE( 2566 OHCI_TD_IN | OHCI_TD_NOCC | 2567 OHCI_TD_SET_DI(1) | OHCI_TD_TOGGLE_CARRY); 2568 if (xfer->flags & USBD_SHORT_XFER_OK) 2569 data->td.td_flags |= LE(OHCI_TD_R); 2570 data->td.td_cbp = LE(DMAADDR(&xfer->dmabuf)); 2571 data->nexttd = tail; 2572 data->td.td_nexttd = LE(tail->physaddr); 2573 data->td.td_be = LE(LE(data->td.td_cbp) + len - 1); 2574 data->len = len; 2575 data->xfer = xfer; 2576 data->flags = OHCI_CALL_DONE | OHCI_ADD_LEN; 2577 xfer->hcpriv = data; 2578 2579 #ifdef OHCI_DEBUG 2580 if (ohcidebug > 5) { 2581 DPRINTF(("ohci_device_intr_transfer:\n")); 2582 ohci_dump_ed(sed); 2583 ohci_dump_tds(data); 2584 } 2585 #endif 2586 2587 /* Insert ED in schedule */ 2588 s = splusb(); 2589 ohci_hash_add_td(sc, data); 2590 sed->ed.ed_tailp = LE(tail->physaddr); 2591 opipe->tail.td = tail; 2592 sed->ed.ed_flags &= LE(~OHCI_ED_SKIP); 2593 2594 #if 0 2595 /* 2596 * This goes horribly wrong, printing thousands of descriptors, 2597 * because false references are followed due to the fact that the 2598 * TD is gone. 2599 */ 2600 if (ohcidebug > 5) { 2601 usb_delay_ms(&sc->sc_bus, 5); 2602 DPRINTF(("ohci_device_intr_transfer: status=%x\n", 2603 OREAD4(sc, OHCI_COMMAND_STATUS))); 2604 ohci_dump_ed(sed); 2605 ohci_dump_tds(data); 2606 } 2607 #endif 2608 splx(s); 2609 2610 return (USBD_IN_PROGRESS); 2611 } 2612 2613 /* Abort a device control request. */ 2614 static void 2615 ohci_device_intr_abort(xfer) 2616 usbd_xfer_handle xfer; 2617 { 2618 if (xfer->pipe->intrxfer == xfer) { 2619 DPRINTF(("ohci_device_intr_abort: remove\n")); 2620 xfer->pipe->intrxfer = NULL; 2621 } 2622 ohci_abort_xfer(xfer, USBD_CANCELLED); 2623 } 2624 2625 /* Close a device interrupt pipe. */ 2626 static void 2627 ohci_device_intr_close(pipe) 2628 usbd_pipe_handle pipe; 2629 { 2630 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2631 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2632 int nslots = opipe->u.intr.nslots; 2633 int pos = opipe->u.intr.pos; 2634 int j; 2635 ohci_soft_ed_t *p, *sed = opipe->sed; 2636 int s; 2637 2638 DPRINTFN(1,("ohci_device_intr_close: pipe=%p nslots=%d pos=%d\n", 2639 pipe, nslots, pos)); 2640 s = splusb(); 2641 sed->ed.ed_flags |= LE(OHCI_ED_SKIP); 2642 if ((sed->ed.ed_tailp & LE(OHCI_TAILMASK)) != 2643 (sed->ed.ed_headp & LE(OHCI_TAILMASK))) 2644 usb_delay_ms(&sc->sc_bus, 2); 2645 2646 for (p = sc->sc_eds[pos]; p && p->next != sed; p = p->next) 2647 ; 2648 #ifdef DIAGNOSTIC 2649 if (p == NULL) 2650 panic("ohci_device_intr_close: ED not found\n"); 2651 #endif 2652 p->next = sed->next; 2653 p->ed.ed_nexted = sed->ed.ed_nexted; 2654 splx(s); 2655 2656 for (j = 0; j < nslots; j++) 2657 --sc->sc_bws[(pos * nslots + j) % OHCI_NO_INTRS]; 2658 2659 ohci_free_std(sc, opipe->tail.td); 2660 ohci_free_sed(sc, opipe->sed); 2661 } 2662 2663 static usbd_status 2664 ohci_device_setintr(sc, opipe, ival) 2665 ohci_softc_t *sc; 2666 struct ohci_pipe *opipe; 2667 int ival; 2668 { 2669 int i, j, s, best; 2670 u_int npoll, slow, shigh, nslots; 2671 u_int bestbw, bw; 2672 ohci_soft_ed_t *hsed, *sed = opipe->sed; 2673 2674 DPRINTFN(2, ("ohci_setintr: pipe=%p\n", opipe)); 2675 if (ival == 0) { 2676 printf("ohci_setintr: 0 interval\n"); 2677 return (USBD_INVAL); 2678 } 2679 2680 npoll = OHCI_NO_INTRS; 2681 while (npoll > ival) 2682 npoll /= 2; 2683 DPRINTFN(2, ("ohci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2684 2685 /* 2686 * We now know which level in the tree the ED must go into. 2687 * Figure out which slot has most bandwidth left over. 2688 * Slots to examine: 2689 * npoll 2690 * 1 0 2691 * 2 1 2 2692 * 4 3 4 5 6 2693 * 8 7 8 9 10 11 12 13 14 2694 * N (N-1) .. (N-1+N-1) 2695 */ 2696 slow = npoll-1; 2697 shigh = slow + npoll; 2698 nslots = OHCI_NO_INTRS / npoll; 2699 for (best = i = slow, bestbw = ~0; i < shigh; i++) { 2700 bw = 0; 2701 for (j = 0; j < nslots; j++) 2702 bw += sc->sc_bws[(i * nslots + j) % OHCI_NO_INTRS]; 2703 if (bw < bestbw) { 2704 best = i; 2705 bestbw = bw; 2706 } 2707 } 2708 DPRINTFN(2, ("ohci_setintr: best=%d(%d..%d) bestbw=%d\n", 2709 best, slow, shigh, bestbw)); 2710 2711 s = splusb(); 2712 hsed = sc->sc_eds[best]; 2713 sed->next = hsed->next; 2714 sed->ed.ed_nexted = hsed->ed.ed_nexted; 2715 hsed->next = sed; 2716 hsed->ed.ed_nexted = LE(sed->physaddr); 2717 splx(s); 2718 2719 for (j = 0; j < nslots; j++) 2720 ++sc->sc_bws[(best * nslots + j) % OHCI_NO_INTRS]; 2721 opipe->u.intr.nslots = nslots; 2722 opipe->u.intr.pos = best; 2723 2724 DPRINTFN(5, ("ohci_setintr: returns %p\n", opipe)); 2725 return (USBD_NORMAL_COMPLETION); 2726 } 2727 2728 /***********************/ 2729 2730 usbd_status 2731 ohci_device_isoc_transfer(xfer) 2732 usbd_xfer_handle xfer; 2733 { 2734 usbd_status err; 2735 2736 DPRINTFN(5,("ohci_device_isoc_transfer: xfer=%p\n", xfer)); 2737 2738 /* Put it on our queue, */ 2739 err = usb_insert_transfer(xfer); 2740 2741 /* bail out on error, */ 2742 if (err && err != USBD_IN_PROGRESS) 2743 return (err); 2744 2745 /* XXX should check inuse here */ 2746 2747 /* insert into schedule, */ 2748 ohci_device_isoc_enter(xfer); 2749 2750 /* and put on interrupt list if the pipe wasn't running */ 2751 if (!err) 2752 ohci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2753 2754 return (err); 2755 } 2756 2757 void 2758 ohci_device_isoc_enter(xfer) 2759 usbd_xfer_handle xfer; 2760 { 2761 struct ohci_pipe *opipe = (struct ohci_pipe *)xfer->pipe; 2762 usbd_device_handle dev = opipe->pipe.device; 2763 ohci_softc_t *sc = (ohci_softc_t *)dev->bus; 2764 ohci_soft_ed_t *sed = opipe->sed; 2765 struct iso *iso = &opipe->u.iso; 2766 ohci_soft_itd_t *sitd, *nsitd; 2767 ohci_physaddr_t buf, offs; 2768 int i, ncur, nframes; 2769 int ncross; 2770 int s; 2771 2772 s = splusb(); 2773 sitd = opipe->tail.itd; 2774 buf = DMAADDR(&xfer->dmabuf); 2775 sitd->itd.itd_bp0 = LE(buf & OHCI_ITD_PAGE_MASK); 2776 nframes = xfer->nframes; 2777 offs = buf & OHCI_ITD_OFFSET_MASK; 2778 for (i = ncur = 0; i < nframes; i++, ncur++) { 2779 if (ncur == OHCI_ITD_NOFFSET || /* all offsets used */ 2780 ncross > 1) { /* too many page crossings */ 2781 2782 nsitd = ohci_alloc_sitd(sc); 2783 if (nsitd == NULL) { 2784 /* XXX what now? */ 2785 return; 2786 } 2787 sitd->nextitd = nsitd; 2788 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2789 sitd->itd.itd_flags = LE( 2790 OHCI_ITD_NOCC | 2791 OHCI_ITD_SET_SF(iso->next) | 2792 OHCI_ITD_NOINTR | 2793 OHCI_ITD_SET_FC(OHCI_ITD_NOFFSET)); 2794 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2795 nsitd->itd.itd_bp0 = LE((buf + offs) & OHCI_ITD_PAGE_MASK); 2796 sitd = nsitd; 2797 iso->next = iso->next + ncur; 2798 ncur = 0; 2799 ncross = 0; 2800 } 2801 /* XXX byte order */ 2802 sitd->itd.itd_offset[i] = 2803 offs | (ncross == 1 ? OHCI_ITD_PAGE_SELECT : 0); 2804 offs += xfer->frlengths[i]; 2805 /* XXX update ncross */ 2806 } 2807 nsitd = ohci_alloc_sitd(sc); 2808 if (nsitd == NULL) { 2809 /* XXX what now? */ 2810 return; 2811 } 2812 sitd->nextitd = nsitd; 2813 sitd->itd.itd_nextitd = LE(nsitd->physaddr); 2814 sitd->itd.itd_flags = LE( 2815 OHCI_ITD_NOCC | 2816 OHCI_ITD_SET_SF(iso->next) | 2817 OHCI_ITD_SET_DI(0) | 2818 OHCI_ITD_SET_FC(ncur)); 2819 sitd->itd.itd_be = LE(LE(sitd->itd.itd_bp0) + offs - 1); 2820 iso->next = iso->next + ncur; 2821 2822 opipe->tail.itd = nsitd; 2823 sed->ed.ed_tailp = LE(nsitd->physaddr); 2824 /* XXX update ED */ 2825 splx(s); 2826 } 2827 2828 usbd_status 2829 ohci_device_isoc_start(xfer) 2830 usbd_xfer_handle xfer; 2831 { 2832 printf("ohci_device_isoc_start: not implemented\n"); 2833 return (USBD_INVAL); 2834 } 2835 2836 void 2837 ohci_device_isoc_abort(xfer) 2838 usbd_xfer_handle xfer; 2839 { 2840 } 2841 2842 void 2843 ohci_device_isoc_done(xfer) 2844 usbd_xfer_handle xfer; 2845 { 2846 printf("ohci_device_isoc_done: not implemented\n"); 2847 } 2848 2849 usbd_status 2850 ohci_setup_isoc(pipe) 2851 usbd_pipe_handle pipe; 2852 { 2853 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2854 struct iso *iso = &opipe->u.iso; 2855 2856 iso->next = -1; 2857 iso->inuse = 0; 2858 2859 return (USBD_NORMAL_COMPLETION); 2860 } 2861 2862 void 2863 ohci_device_isoc_close(pipe) 2864 usbd_pipe_handle pipe; 2865 { 2866 struct ohci_pipe *opipe = (struct ohci_pipe *)pipe; 2867 ohci_softc_t *sc = (ohci_softc_t *)pipe->device->bus; 2868 2869 DPRINTF(("ohci_device_isoc_close: pipe=%p\n", pipe)); 2870 ohci_close_pipe(pipe, sc->sc_isoc_head); 2871 ohci_free_sitd(sc, opipe->tail.itd); 2872 } 2873
Indexes created Wed Sep 24 22:09:59 GMT 2025