ehci.c revision 1.5
1 /* $NetBSD: ehci.c,v 1.5 2001/11/15 23:25:09 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 41 * 42 * The EHCI 0.96 spec can be found at 43 * http://developer.intel.com/technology/usb/download/ehci-r096.pdf 44 * 45 */ 46 47 #include <sys/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.5 2001/11/15 23:25:09 augustss Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/malloc.h> 54 #include <sys/device.h> 55 #include <sys/select.h> 56 #include <sys/proc.h> 57 #include <sys/queue.h> 58 59 #include <machine/bus.h> 60 #include <machine/endian.h> 61 62 #include <dev/usb/usb.h> 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdivar.h> 65 #include <dev/usb/usb_mem.h> 66 #include <dev/usb/usb_quirks.h> 67 68 #include <dev/usb/ehcireg.h> 69 #include <dev/usb/ehcivar.h> 70 71 #ifdef EHCI_DEBUG 72 #define DPRINTF(x) if (ehcidebug) printf x 73 #define DPRINTFN(n,x) if (ehcidebug>(n)) printf x 74 int ehcidebug = 5; 75 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n,x) 79 #endif 80 81 struct ehci_pipe { 82 struct usbd_pipe pipe; 83 }; 84 85 Static void ehci_shutdown(void *); 86 Static void ehci_power(int, void *); 87 88 Static usbd_status ehci_open(usbd_pipe_handle); 89 Static void ehci_poll(struct usbd_bus *); 90 Static void ehci_softintr(void *); 91 92 Static usbd_status ehci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 93 Static void ehci_freem(struct usbd_bus *, usb_dma_t *); 94 95 Static usbd_xfer_handle ehci_allocx(struct usbd_bus *); 96 Static void ehci_freex(struct usbd_bus *, usbd_xfer_handle); 97 98 Static usbd_status ehci_root_ctrl_transfer(usbd_xfer_handle); 99 Static usbd_status ehci_root_ctrl_start(usbd_xfer_handle); 100 Static void ehci_root_ctrl_abort(usbd_xfer_handle); 101 Static void ehci_root_ctrl_close(usbd_pipe_handle); 102 Static void ehci_root_ctrl_done(usbd_xfer_handle); 103 104 Static usbd_status ehci_root_intr_transfer(usbd_xfer_handle); 105 Static usbd_status ehci_root_intr_start(usbd_xfer_handle); 106 Static void ehci_root_intr_abort(usbd_xfer_handle); 107 Static void ehci_root_intr_close(usbd_pipe_handle); 108 Static void ehci_root_intr_done(usbd_xfer_handle); 109 110 Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle); 111 Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle); 112 Static void ehci_device_ctrl_abort(usbd_xfer_handle); 113 Static void ehci_device_ctrl_close(usbd_pipe_handle); 114 Static void ehci_device_ctrl_done(usbd_xfer_handle); 115 116 Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle); 117 Static usbd_status ehci_device_bulk_start(usbd_xfer_handle); 118 Static void ehci_device_bulk_abort(usbd_xfer_handle); 119 Static void ehci_device_bulk_close(usbd_pipe_handle); 120 Static void ehci_device_bulk_done(usbd_xfer_handle); 121 122 Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle); 123 Static usbd_status ehci_device_intr_start(usbd_xfer_handle); 124 Static void ehci_device_intr_abort(usbd_xfer_handle); 125 Static void ehci_device_intr_close(usbd_pipe_handle); 126 Static void ehci_device_intr_done(usbd_xfer_handle); 127 128 Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle); 129 Static usbd_status ehci_device_isoc_start(usbd_xfer_handle); 130 Static void ehci_device_isoc_abort(usbd_xfer_handle); 131 Static void ehci_device_isoc_close(usbd_pipe_handle); 132 Static void ehci_device_isoc_done(usbd_xfer_handle); 133 134 Static void ehci_device_clear_toggle(usbd_pipe_handle pipe); 135 Static void ehci_noop(usbd_pipe_handle pipe); 136 137 Static int ehci_str(usb_string_descriptor_t *, int, char *); 138 139 #ifdef EHCI_DEBUG 140 Static void ehci_dumpregs(ehci_softc_t *); 141 #endif 142 143 #define EHCI_INTR_ENDPT 1 144 145 Static struct usbd_bus_methods ehci_bus_methods = { 146 ehci_open, 147 ehci_softintr, 148 ehci_poll, 149 ehci_allocm, 150 ehci_freem, 151 ehci_allocx, 152 ehci_freex, 153 }; 154 155 Static struct usbd_pipe_methods ehci_root_ctrl_methods = { 156 ehci_root_ctrl_transfer, 157 ehci_root_ctrl_start, 158 ehci_root_ctrl_abort, 159 ehci_root_ctrl_close, 160 ehci_noop, 161 ehci_root_ctrl_done, 162 }; 163 164 Static struct usbd_pipe_methods ehci_root_intr_methods = { 165 ehci_root_intr_transfer, 166 ehci_root_intr_start, 167 ehci_root_intr_abort, 168 ehci_root_intr_close, 169 ehci_noop, 170 ehci_root_intr_done, 171 }; 172 173 Static struct usbd_pipe_methods ehci_device_ctrl_methods = { 174 ehci_device_ctrl_transfer, 175 ehci_device_ctrl_start, 176 ehci_device_ctrl_abort, 177 ehci_device_ctrl_close, 178 ehci_noop, 179 ehci_device_ctrl_done, 180 }; 181 182 Static struct usbd_pipe_methods ehci_device_intr_methods = { 183 ehci_device_intr_transfer, 184 ehci_device_intr_start, 185 ehci_device_intr_abort, 186 ehci_device_intr_close, 187 ehci_device_clear_toggle, 188 ehci_device_intr_done, 189 }; 190 191 Static struct usbd_pipe_methods ehci_device_bulk_methods = { 192 ehci_device_bulk_transfer, 193 ehci_device_bulk_start, 194 ehci_device_bulk_abort, 195 ehci_device_bulk_close, 196 ehci_device_clear_toggle, 197 ehci_device_bulk_done, 198 }; 199 200 Static struct usbd_pipe_methods ehci_device_isoc_methods = { 201 ehci_device_isoc_transfer, 202 ehci_device_isoc_start, 203 ehci_device_isoc_abort, 204 ehci_device_isoc_close, 205 ehci_noop, 206 ehci_device_isoc_done, 207 }; 208 209 usbd_status 210 ehci_init(ehci_softc_t *sc) 211 { 212 u_int32_t version, sparams, cparams, hcr; 213 u_int i; 214 usbd_status err; 215 216 DPRINTF(("ehci_init: start\n")); 217 218 sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH); 219 220 version = EREAD2(sc, EHCI_HCIVERSION); 221 printf("%s: EHCI version %x.%x\n", USBDEVNAME(sc->sc_bus.bdev), 222 version >> 8, version & 0xff); 223 224 sparams = EREAD4(sc, EHCI_HCSPARAMS); 225 DPRINTF(("ehci_init: sparams=0x%x\n", sparams)); 226 if (EHCI_HCS_N_CC(sparams) != sc->sc_ncomp) { 227 printf("%s: wrong number of companions (%d != %d)\n", 228 USBDEVNAME(sc->sc_bus.bdev), 229 EHCI_HCS_N_CC(sparams), sc->sc_ncomp); 230 return (USBD_IOERROR); 231 } 232 if (sc->sc_ncomp > 0) { 233 printf("%s: companion controller%s, %d port%s each:", 234 USBDEVNAME(sc->sc_bus.bdev), sc->sc_ncomp!=1 ? "s" : "", 235 EHCI_HCS_N_PCC(sparams), 236 EHCI_HCS_N_PCC(sparams)!=1 ? "s" : ""); 237 for (i = 0; i < sc->sc_ncomp; i++) 238 printf(" %s", USBDEVNAME(sc->sc_comps[i]->bdev)); 239 printf("\n"); 240 } 241 sc->sc_noport = EHCI_HCS_N_PORTS(sparams); 242 cparams = EREAD4(sc, EHCI_HCCPARAMS); 243 DPRINTF(("ehci_init: cparams=0x%x\n", cparams)); 244 245 sc->sc_bus.usbrev = USBREV_2_0; 246 247 /* Reset the controller */ 248 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 249 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 250 usb_delay_ms(&sc->sc_bus, 1); 251 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 252 for (i = 0; i < 100; i++) { 253 delay(10); 254 hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; 255 if (!hcr) 256 break; 257 } 258 if (hcr) { 259 printf("%s: reset timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 260 return (USBD_IOERROR); 261 } 262 263 /* frame list size at default, read back what we got and use that */ 264 switch (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD))) { 265 case 0: sc->sc_flsize = 1024*4; break; 266 case 1: sc->sc_flsize = 512*4; break; 267 case 2: sc->sc_flsize = 256*4; break; 268 case 3: return (USBD_IOERROR); 269 } 270 err = usb_allocmem(&sc->sc_bus, sc->sc_flsize, 271 EHCI_FLALIGN_ALIGN, &sc->sc_fldma); 272 if (err) 273 return (err); 274 DPRINTF(("%s: flsize=%d\n", USBDEVNAME(sc->sc_bus.bdev),sc->sc_flsize)); 275 276 /* Set up the bus struct. */ 277 sc->sc_bus.methods = &ehci_bus_methods; 278 sc->sc_bus.pipe_size = sizeof(struct ehci_pipe); 279 280 sc->sc_powerhook = powerhook_establish(ehci_power, sc); 281 sc->sc_shutdownhook = shutdownhook_establish(ehci_shutdown, sc); 282 283 return (USBD_NORMAL_COMPLETION); 284 } 285 286 int 287 ehci_intr(void *v) 288 { 289 return (0); 290 } 291 292 void 293 ehci_softintr(void *v) 294 { 295 //ehci_softc_t *sc = v; 296 } 297 298 void 299 ehci_poll(struct usbd_bus *bus) 300 { 301 #if 0 302 ehci_softc_t *sc = (ehci_softc_t *)bus; 303 #ifdef EHCI_DEBUG 304 static int last; 305 int new; 306 new = OREAD4(sc, EHCI_INTERRUPT_STATUS); 307 if (new != last) { 308 DPRINTFN(10,("ehci_poll: intrs=0x%04x\n", new)); 309 last = new; 310 } 311 #endif 312 313 if (OREAD4(sc, EHCI_INTERRUPT_STATUS) & sc->sc_eintrs) 314 ehci_intr1(sc); 315 #endif 316 } 317 318 int 319 ehci_detach(struct ehci_softc *sc, int flags) 320 { 321 int rv = 0; 322 323 if (sc->sc_child != NULL) 324 rv = config_detach(sc->sc_child, flags); 325 326 if (rv != 0) 327 return (rv); 328 329 if (sc->sc_powerhook != NULL) 330 powerhook_disestablish(sc->sc_powerhook); 331 if (sc->sc_shutdownhook != NULL) 332 shutdownhook_disestablish(sc->sc_shutdownhook); 333 334 /* XXX free other data structures XXX */ 335 336 return (rv); 337 } 338 339 340 int 341 ehci_activate(device_ptr_t self, enum devact act) 342 { 343 struct ehci_softc *sc = (struct ehci_softc *)self; 344 int rv = 0; 345 346 switch (act) { 347 case DVACT_ACTIVATE: 348 return (EOPNOTSUPP); 349 break; 350 351 case DVACT_DEACTIVATE: 352 if (sc->sc_child != NULL) 353 rv = config_deactivate(sc->sc_child); 354 sc->sc_dying = 1; 355 break; 356 } 357 return (rv); 358 } 359 360 /* 361 * Handle suspend/resume. 362 * 363 * We need to switch to polling mode here, because this routine is 364 * called from an intterupt context. This is all right since we 365 * are almost suspended anyway. 366 */ 367 void 368 ehci_power(int why, void *v) 369 { 370 ehci_softc_t *sc = v; 371 //u_int32_t ctl; 372 int s; 373 374 #ifdef EHCI_DEBUG 375 DPRINTF(("ehci_power: sc=%p, why=%d\n", sc, why)); 376 ehci_dumpregs(sc); 377 #endif 378 379 s = splhardusb(); 380 switch (why) { 381 case PWR_SUSPEND: 382 case PWR_STANDBY: 383 sc->sc_bus.use_polling++; 384 #if 0 385 OOO 386 ctl = OREAD4(sc, EHCI_CONTROL) & ~EHCI_HCFS_MASK; 387 if (sc->sc_control == 0) { 388 /* 389 * Preserve register values, in case that APM BIOS 390 * does not recover them. 391 */ 392 sc->sc_control = ctl; 393 sc->sc_intre = OREAD4(sc, EHCI_INTERRUPT_ENABLE); 394 } 395 ctl |= EHCI_HCFS_SUSPEND; 396 OWRITE4(sc, EHCI_CONTROL, ctl); 397 #endif 398 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 399 sc->sc_bus.use_polling--; 400 break; 401 case PWR_RESUME: 402 sc->sc_bus.use_polling++; 403 #if 0 404 OOO 405 /* Some broken BIOSes do not recover these values */ 406 OWRITE4(sc, EHCI_HCCA, DMAADDR(&sc->sc_hccadma)); 407 OWRITE4(sc, EHCI_CONTROL_HEAD_ED, sc->sc_ctrl_head->physaddr); 408 OWRITE4(sc, EHCI_BULK_HEAD_ED, sc->sc_bulk_head->physaddr); 409 if (sc->sc_intre) 410 OWRITE4(sc, EHCI_INTERRUPT_ENABLE, 411 sc->sc_intre & (EHCI_ALL_INTRS | EHCI_MIE)); 412 if (sc->sc_control) 413 ctl = sc->sc_control; 414 else 415 ctl = OREAD4(sc, EHCI_CONTROL); 416 ctl |= EHCI_HCFS_RESUME; 417 OWRITE4(sc, EHCI_CONTROL, ctl); 418 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 419 ctl = (ctl & ~EHCI_HCFS_MASK) | EHCI_HCFS_OPERATIONAL; 420 OWRITE4(sc, EHCI_CONTROL, ctl); 421 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 422 sc->sc_control = sc->sc_intre = 0; 423 #endif 424 sc->sc_bus.use_polling--; 425 break; 426 case PWR_SOFTSUSPEND: 427 case PWR_SOFTSTANDBY: 428 case PWR_SOFTRESUME: 429 break; 430 } 431 splx(s); 432 } 433 434 /* 435 * Shut down the controller when the system is going down. 436 */ 437 void 438 ehci_shutdown(void *v) 439 { 440 //ehci_softc_t *sc = v; 441 442 DPRINTF(("ehci_shutdown: stopping the HC\n")); 443 #if 0 444 OOO 445 OWRITE4(sc, EHCI_CONTROL, EHCI_HCFS_RESET); 446 #endif 447 } 448 449 usbd_status 450 ehci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 451 { 452 struct ehci_softc *sc = (struct ehci_softc *)bus; 453 454 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 455 } 456 457 void 458 ehci_freem(struct usbd_bus *bus, usb_dma_t *dma) 459 { 460 struct ehci_softc *sc = (struct ehci_softc *)bus; 461 462 usb_freemem(&sc->sc_bus, dma); 463 } 464 465 usbd_xfer_handle 466 ehci_allocx(struct usbd_bus *bus) 467 { 468 struct ehci_softc *sc = (struct ehci_softc *)bus; 469 usbd_xfer_handle xfer; 470 471 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 472 if (xfer != NULL) 473 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 474 else 475 xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT); 476 if (xfer != NULL) 477 memset(xfer, 0, sizeof *xfer); 478 return (xfer); 479 } 480 481 void 482 ehci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 483 { 484 struct ehci_softc *sc = (struct ehci_softc *)bus; 485 486 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 487 } 488 489 Static void 490 ehci_device_clear_toggle(usbd_pipe_handle pipe) 491 { 492 #if 0 493 OOO 494 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 495 496 epipe->sed->ed.ed_headp &= htole32(~EHCI_TOGGLECARRY); 497 #endif 498 } 499 500 Static void 501 ehci_noop(usbd_pipe_handle pipe) 502 { 503 } 504 505 #ifdef EHCI_DEBUG 506 void 507 ehci_dumpregs(ehci_softc_t *sc) 508 { 509 // OOO 510 } 511 #endif 512 513 usbd_status 514 ehci_open(usbd_pipe_handle pipe) 515 { 516 usbd_device_handle dev = pipe->device; 517 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 518 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 519 u_int8_t addr = dev->address; 520 #if 0 521 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 522 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 523 ehci_soft_ed_t *sed; 524 ehci_soft_td_t *std; 525 ehci_soft_itd_t *sitd; 526 ehci_physaddr_t tdphys; 527 u_int32_t fmt; 528 usbd_status err; 529 int s; 530 int ival; 531 #endif 532 533 DPRINTFN(1, ("ehci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 534 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 535 536 if (addr == sc->sc_addr) { 537 switch (ed->bEndpointAddress) { 538 case USB_CONTROL_ENDPOINT: 539 pipe->methods = &ehci_root_ctrl_methods; 540 break; 541 case UE_DIR_IN | EHCI_INTR_ENDPT: 542 pipe->methods = &ehci_root_intr_methods; 543 break; 544 default: 545 return (USBD_INVAL); 546 } 547 } else { 548 #if 0 549 std = NULL; 550 sed = NULL; 551 552 sed = ehci_alloc_sed(sc); 553 if (sed == NULL) 554 goto bad0; 555 epipe->sed = sed; 556 if (xfertype == UE_ISOCHRONOUS) { 557 sitd = ehci_alloc_sitd(sc); 558 if (sitd == NULL) { 559 ehci_free_sitd(sc, sitd); 560 goto bad1; 561 } 562 epipe->tail.itd = sitd; 563 tdphys = sitd->physaddr; 564 fmt = EHCI_ED_FORMAT_ISO; 565 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) 566 fmt |= EHCI_ED_DIR_IN; 567 else 568 fmt |= EHCI_ED_DIR_OUT; 569 } else { 570 std = ehci_alloc_std(sc); 571 if (std == NULL) { 572 ehci_free_std(sc, std); 573 goto bad1; 574 } 575 epipe->tail.td = std; 576 tdphys = std->physaddr; 577 fmt = EHCI_ED_FORMAT_GEN | EHCI_ED_DIR_TD; 578 } 579 sed->ed.ed_flags = htole32( 580 EHCI_ED_SET_FA(addr) | 581 EHCI_ED_SET_EN(ed->bEndpointAddress) | 582 (dev->lowspeed ? EHCI_ED_SPEED : 0) | fmt | 583 EHCI_ED_SET_MAXP(UGETW(ed->wMaxPacketSize))); 584 sed->ed.ed_headp = sed->ed.ed_tailp = htole32(tdphys); 585 586 switch (xfertype) { 587 case UE_CONTROL: 588 pipe->methods = &ehci_device_ctrl_methods; 589 err = usb_allocmem(&sc->sc_bus, 590 sizeof(usb_device_request_t), 591 0, &epipe->u.ctl.reqdma); 592 if (err) 593 goto bad; 594 s = splusb(); 595 ehci_add_ed(sed, sc->sc_ctrl_head); 596 splx(s); 597 break; 598 case UE_INTERRUPT: 599 pipe->methods = &ehci_device_intr_methods; 600 ival = pipe->interval; 601 if (ival == USBD_DEFAULT_INTERVAL) 602 ival = ed->bInterval; 603 return (ehci_device_setintr(sc, epipe, ival)); 604 case UE_ISOCHRONOUS: 605 pipe->methods = &ehci_device_isoc_methods; 606 return (ehci_setup_isoc(pipe)); 607 case UE_BULK: 608 pipe->methods = &ehci_device_bulk_methods; 609 s = splusb(); 610 ehci_add_ed(sed, sc->sc_bulk_head); 611 splx(s); 612 break; 613 } 614 #else 615 return (USBD_IOERROR); 616 #endif 617 } 618 return (USBD_NORMAL_COMPLETION); 619 620 #if 0 621 bad: 622 if (std != NULL) 623 ehci_free_std(sc, std); 624 bad1: 625 if (sed != NULL) 626 ehci_free_sed(sc, sed); 627 bad0: 628 return (USBD_NOMEM); 629 #endif 630 } 631 632 /***********/ 633 634 /* 635 * Data structures and routines to emulate the root hub. 636 */ 637 Static usb_device_descriptor_t ehci_devd = { 638 USB_DEVICE_DESCRIPTOR_SIZE, 639 UDESC_DEVICE, /* type */ 640 {0x00, 0x02}, /* USB version */ 641 UDCLASS_HUB, /* class */ 642 UDSUBCLASS_HUB, /* subclass */ 643 0, /* protocol */ 644 64, /* max packet */ 645 {0},{0},{0x00,0x01}, /* device id */ 646 1,2,0, /* string indicies */ 647 1 /* # of configurations */ 648 }; 649 650 Static usb_config_descriptor_t ehci_confd = { 651 USB_CONFIG_DESCRIPTOR_SIZE, 652 UDESC_CONFIG, 653 {USB_CONFIG_DESCRIPTOR_SIZE + 654 USB_INTERFACE_DESCRIPTOR_SIZE + 655 USB_ENDPOINT_DESCRIPTOR_SIZE}, 656 1, 657 1, 658 0, 659 UC_SELF_POWERED, 660 0 /* max power */ 661 }; 662 663 Static usb_interface_descriptor_t ehci_ifcd = { 664 USB_INTERFACE_DESCRIPTOR_SIZE, 665 UDESC_INTERFACE, 666 0, 667 0, 668 1, 669 UICLASS_HUB, 670 UISUBCLASS_HUB, 671 0, 672 0 673 }; 674 675 Static usb_endpoint_descriptor_t ehci_endpd = { 676 USB_ENDPOINT_DESCRIPTOR_SIZE, 677 UDESC_ENDPOINT, 678 UE_DIR_IN | EHCI_INTR_ENDPT, 679 UE_INTERRUPT, 680 {8, 0}, /* max packet */ 681 255 682 }; 683 684 Static usb_hub_descriptor_t ehci_hubd = { 685 USB_HUB_DESCRIPTOR_SIZE, 686 UDESC_HUB, 687 0, 688 {0,0}, 689 0, 690 0, 691 {0}, 692 }; 693 694 Static int 695 ehci_str(p, l, s) 696 usb_string_descriptor_t *p; 697 int l; 698 char *s; 699 { 700 int i; 701 702 if (l == 0) 703 return (0); 704 p->bLength = 2 * strlen(s) + 2; 705 if (l == 1) 706 return (1); 707 p->bDescriptorType = UDESC_STRING; 708 l -= 2; 709 for (i = 0; s[i] && l > 1; i++, l -= 2) 710 USETW2(p->bString[i], 0, s[i]); 711 return (2*i+2); 712 } 713 714 /* 715 * Simulate a hardware hub by handling all the necessary requests. 716 */ 717 Static usbd_status 718 ehci_root_ctrl_transfer(usbd_xfer_handle xfer) 719 { 720 usbd_status err; 721 722 /* Insert last in queue. */ 723 err = usb_insert_transfer(xfer); 724 if (err) 725 return (err); 726 727 /* Pipe isn't running, start first */ 728 return (ehci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 729 } 730 731 Static usbd_status 732 ehci_root_ctrl_start(usbd_xfer_handle xfer) 733 { 734 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 735 usb_device_request_t *req; 736 void *buf = NULL; 737 int port, i; 738 int s, len, value, index, l, totlen = 0; 739 usb_port_status_t ps; 740 usb_hub_descriptor_t hubd; 741 usbd_status err; 742 u_int32_t v; 743 744 if (sc->sc_dying) 745 return (USBD_IOERROR); 746 747 #ifdef DIAGNOSTIC 748 if (!(xfer->rqflags & URQ_REQUEST)) 749 /* XXX panic */ 750 return (USBD_INVAL); 751 #endif 752 req = &xfer->request; 753 754 DPRINTFN(4,("ehci_root_ctrl_control type=0x%02x request=%02x\n", 755 req->bmRequestType, req->bRequest)); 756 757 len = UGETW(req->wLength); 758 value = UGETW(req->wValue); 759 index = UGETW(req->wIndex); 760 761 if (len != 0) 762 buf = KERNADDR(&xfer->dmabuf); 763 764 #define C(x,y) ((x) | ((y) << 8)) 765 switch(C(req->bRequest, req->bmRequestType)) { 766 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 767 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 768 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 769 /* 770 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 771 * for the integrated root hub. 772 */ 773 break; 774 case C(UR_GET_CONFIG, UT_READ_DEVICE): 775 if (len > 0) { 776 *(u_int8_t *)buf = sc->sc_conf; 777 totlen = 1; 778 } 779 break; 780 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 781 DPRINTFN(8,("ehci_root_ctrl_control wValue=0x%04x\n", value)); 782 switch(value >> 8) { 783 case UDESC_DEVICE: 784 if ((value & 0xff) != 0) { 785 err = USBD_IOERROR; 786 goto ret; 787 } 788 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 789 USETW(ehci_devd.idVendor, sc->sc_id_vendor); 790 memcpy(buf, &ehci_devd, l); 791 break; 792 case UDESC_CONFIG: 793 if ((value & 0xff) != 0) { 794 err = USBD_IOERROR; 795 goto ret; 796 } 797 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 798 memcpy(buf, &ehci_confd, l); 799 buf = (char *)buf + l; 800 len -= l; 801 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 802 totlen += l; 803 memcpy(buf, &ehci_ifcd, l); 804 buf = (char *)buf + l; 805 len -= l; 806 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 807 totlen += l; 808 memcpy(buf, &ehci_endpd, l); 809 break; 810 case UDESC_STRING: 811 if (len == 0) 812 break; 813 *(u_int8_t *)buf = 0; 814 totlen = 1; 815 switch (value & 0xff) { 816 case 1: /* Vendor */ 817 totlen = ehci_str(buf, len, sc->sc_vendor); 818 break; 819 case 2: /* Product */ 820 totlen = ehci_str(buf, len, "EHCI root hub"); 821 break; 822 } 823 break; 824 default: 825 err = USBD_IOERROR; 826 goto ret; 827 } 828 break; 829 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 830 if (len > 0) { 831 *(u_int8_t *)buf = 0; 832 totlen = 1; 833 } 834 break; 835 case C(UR_GET_STATUS, UT_READ_DEVICE): 836 if (len > 1) { 837 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 838 totlen = 2; 839 } 840 break; 841 case C(UR_GET_STATUS, UT_READ_INTERFACE): 842 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 843 if (len > 1) { 844 USETW(((usb_status_t *)buf)->wStatus, 0); 845 totlen = 2; 846 } 847 break; 848 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 849 if (value >= USB_MAX_DEVICES) { 850 err = USBD_IOERROR; 851 goto ret; 852 } 853 sc->sc_addr = value; 854 break; 855 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 856 if (value != 0 && value != 1) { 857 err = USBD_IOERROR; 858 goto ret; 859 } 860 sc->sc_conf = value; 861 break; 862 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 863 break; 864 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 865 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 866 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 867 err = USBD_IOERROR; 868 goto ret; 869 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 870 break; 871 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 872 break; 873 /* Hub requests */ 874 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 875 break; 876 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 877 DPRINTFN(8, ("ehci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 878 "port=%d feature=%d\n", 879 index, value)); 880 if (index < 1 || index > sc->sc_noport) { 881 err = USBD_IOERROR; 882 goto ret; 883 } 884 port = EHCI_PORTSC(index); 885 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 886 switch(value) { 887 case UHF_PORT_ENABLE: 888 EOWRITE4(sc, port, v &~ EHCI_PS_PE); 889 break; 890 case UHF_PORT_SUSPEND: 891 EOWRITE4(sc, port, v &~ EHCI_PS_SUSP); 892 break; 893 case UHF_PORT_POWER: 894 EOWRITE4(sc, port, v &~ EHCI_PS_PP); 895 break; 896 case UHF_C_PORT_CONNECTION: 897 EOWRITE4(sc, port, v | EHCI_PS_CSC); 898 break; 899 case UHF_C_PORT_ENABLE: 900 EOWRITE4(sc, port, v | EHCI_PS_PEC); 901 break; 902 case UHF_C_PORT_SUSPEND: 903 /* how? */ 904 break; 905 case UHF_C_PORT_OVER_CURRENT: 906 EOWRITE4(sc, port, v | EHCI_PS_OCC); 907 break; 908 case UHF_C_PORT_RESET: 909 /* how? */ 910 break; 911 default: 912 err = USBD_IOERROR; 913 goto ret; 914 } 915 #if 0 916 switch(value) { 917 case UHF_C_PORT_CONNECTION: 918 case UHF_C_PORT_ENABLE: 919 case UHF_C_PORT_SUSPEND: 920 case UHF_C_PORT_OVER_CURRENT: 921 case UHF_C_PORT_RESET: 922 /* Enable RHSC interrupt if condition is cleared. */ 923 if ((OREAD4(sc, port) >> 16) == 0) 924 ehci_rhsc_able(sc, 1); 925 break; 926 default: 927 break; 928 } 929 #endif 930 break; 931 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 932 if (value != 0) { 933 err = USBD_IOERROR; 934 goto ret; 935 } 936 hubd = ehci_hubd; 937 hubd.bNbrPorts = sc->sc_noport; 938 v = EOREAD4(sc, EHCI_HCSPARAMS); 939 USETW(hubd.wHubCharacteristics, 940 EHCI_HCS_PPC(v) ? UHD_PWR_INDIVIDUAL : UHD_PWR_NO_SWITCH); 941 hubd.bPwrOn2PwrGood = 200; /* XXX can't find out? */ 942 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 943 hubd.DeviceRemovable[i++] = 0; /* XXX can't find out? */ 944 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 945 l = min(len, hubd.bDescLength); 946 totlen = l; 947 memcpy(buf, &hubd, l); 948 break; 949 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 950 if (len != 4) { 951 err = USBD_IOERROR; 952 goto ret; 953 } 954 memset(buf, 0, len); /* ? XXX */ 955 totlen = len; 956 break; 957 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 958 DPRINTFN(8,("ehci_root_ctrl_transfer: get port status i=%d\n", 959 index)); 960 if (index < 1 || index > sc->sc_noport) { 961 err = USBD_IOERROR; 962 goto ret; 963 } 964 if (len != 4) { 965 err = USBD_IOERROR; 966 goto ret; 967 } 968 v = EOREAD4(sc, EHCI_PORTSC(index)); 969 DPRINTFN(8,("ehci_root_ctrl_transfer: port status=0x%04x\n", 970 v)); 971 i = 0; 972 if (v & EHCI_PS_CS) i |= UPS_CURRENT_CONNECT_STATUS; 973 if (v & EHCI_PS_PE) i |= UPS_PORT_ENABLED; 974 if (v & EHCI_PS_SUSP) i |= UPS_SUSPEND; 975 if (v & EHCI_PS_OCA) i |= UPS_OVERCURRENT_INDICATOR; 976 if (v & EHCI_PS_PR) i |= UPS_RESET; 977 if (v & EHCI_PS_PP) i |= UPS_PORT_POWER; 978 USETW(ps.wPortStatus, i); 979 i = 0; 980 if (v & EHCI_PS_CSC) i |= UPS_C_CONNECT_STATUS; 981 if (v & EHCI_PS_PEC) i |= UPS_C_PORT_ENABLED; 982 if (v & EHCI_PS_OCC) i |= UPS_C_OVERCURRENT_INDICATOR; 983 USETW(ps.wPortChange, i); 984 l = min(len, sizeof ps); 985 memcpy(buf, &ps, l); 986 totlen = l; 987 break; 988 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 989 err = USBD_IOERROR; 990 goto ret; 991 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 992 break; 993 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 994 if (index < 1 || index > sc->sc_noport) { 995 err = USBD_IOERROR; 996 goto ret; 997 } 998 port = EHCI_PORTSC(index); 999 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 1000 switch(value) { 1001 case UHF_PORT_ENABLE: 1002 EOWRITE4(sc, port, v | EHCI_PS_PE); 1003 break; 1004 case UHF_PORT_SUSPEND: 1005 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 1006 break; 1007 case UHF_PORT_RESET: 1008 DPRINTFN(5,("ehci_root_ctrl_transfer: reset port %d\n", 1009 index)); 1010 EOWRITE4(sc, port, v | EHCI_PS_PR); 1011 for (i = 0; i < 10; i++) { 1012 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 1013 if ((EOREAD4(sc, port) & EHCI_PS_PR) == 0) 1014 break; 1015 } 1016 DPRINTFN(8,("ehci port %d reset, status = 0x%04x\n", 1017 index, EOREAD4(sc, port))); 1018 break; 1019 case UHF_PORT_POWER: 1020 DPRINTFN(2,("ehci_root_ctrl_transfer: set port power " 1021 "%d\n", index)); 1022 EOWRITE4(sc, port, v | EHCI_PS_PP); 1023 break; 1024 default: 1025 err = USBD_IOERROR; 1026 goto ret; 1027 } 1028 break; 1029 default: 1030 err = USBD_IOERROR; 1031 goto ret; 1032 } 1033 xfer->actlen = totlen; 1034 err = USBD_NORMAL_COMPLETION; 1035 ret: 1036 xfer->status = err; 1037 s = splusb(); 1038 usb_transfer_complete(xfer); 1039 splx(s); 1040 return (USBD_IN_PROGRESS); 1041 } 1042 1043 /* Abort a root control request. */ 1044 Static void 1045 ehci_root_ctrl_abort(usbd_xfer_handle xfer) 1046 { 1047 /* Nothing to do, all transfers are synchronous. */ 1048 } 1049 1050 /* Close the root pipe. */ 1051 Static void 1052 ehci_root_ctrl_close(usbd_pipe_handle pipe) 1053 { 1054 DPRINTF(("ehci_root_ctrl_close\n")); 1055 /* Nothing to do. */ 1056 } 1057 1058 void 1059 ehci_root_intr_done(usbd_xfer_handle xfer) 1060 { 1061 xfer->hcpriv = NULL; 1062 } 1063 1064 Static usbd_status 1065 ehci_root_intr_transfer(usbd_xfer_handle xfer) 1066 { 1067 usbd_status err; 1068 1069 /* Insert last in queue. */ 1070 err = usb_insert_transfer(xfer); 1071 if (err) 1072 return (err); 1073 1074 /* Pipe isn't running, start first */ 1075 return (ehci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1076 } 1077 1078 Static usbd_status 1079 ehci_root_intr_start(usbd_xfer_handle xfer) 1080 { 1081 usbd_pipe_handle pipe = xfer->pipe; 1082 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 1083 1084 if (sc->sc_dying) 1085 return (USBD_IOERROR); 1086 1087 sc->sc_intrxfer = xfer; 1088 1089 return (USBD_IN_PROGRESS); 1090 } 1091 1092 /* Abort a root interrupt request. */ 1093 Static void 1094 ehci_root_intr_abort(usbd_xfer_handle xfer) 1095 { 1096 int s; 1097 1098 if (xfer->pipe->intrxfer == xfer) { 1099 DPRINTF(("ehci_root_intr_abort: remove\n")); 1100 xfer->pipe->intrxfer = NULL; 1101 } 1102 xfer->status = USBD_CANCELLED; 1103 s = splusb(); 1104 usb_transfer_complete(xfer); 1105 splx(s); 1106 } 1107 1108 /* Close the root pipe. */ 1109 Static void 1110 ehci_root_intr_close(usbd_pipe_handle pipe) 1111 { 1112 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 1113 1114 DPRINTF(("ehci_root_intr_close\n")); 1115 1116 sc->sc_intrxfer = NULL; 1117 } 1118 1119 void 1120 ehci_root_ctrl_done(usbd_xfer_handle xfer) 1121 { 1122 xfer->hcpriv = NULL; 1123 } 1124 1125 /************************/ 1126 1127 Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1128 Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1129 Static void ehci_device_ctrl_abort(usbd_xfer_handle xfer) { } 1130 Static void ehci_device_ctrl_close(usbd_pipe_handle pipe) { } 1131 Static void ehci_device_ctrl_done(usbd_xfer_handle xfer) { } 1132 1133 Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1134 Static usbd_status ehci_device_bulk_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1135 Static void ehci_device_bulk_abort(usbd_xfer_handle xfer) { } 1136 Static void ehci_device_bulk_close(usbd_pipe_handle pipe) { } 1137 Static void ehci_device_bulk_done(usbd_xfer_handle xfer) { } 1138 1139 Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1140 Static usbd_status ehci_device_intr_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1141 Static void ehci_device_intr_abort(usbd_xfer_handle xfer) { } 1142 Static void ehci_device_intr_close(usbd_pipe_handle pipe) { } 1143 Static void ehci_device_intr_done(usbd_xfer_handle xfer) { } 1144 1145 Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1146 Static usbd_status ehci_device_isoc_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 1147 Static void ehci_device_isoc_abort(usbd_xfer_handle xfer) { } 1148 Static void ehci_device_isoc_close(usbd_pipe_handle pipe) { } 1149 Static void ehci_device_isoc_done(usbd_xfer_handle xfer) { } 1150
Indexes created Tue Sep 23 02:09:52 GMT 2025