ehci.c revision 1.76
1 /* $NetBSD: ehci.c,v 1.76 2004/10/21 18:14:40 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 2004 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) and by Charles M. Hannum. 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 1.0 spec can be found at 43 * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 44 * and the USB 2.0 spec at 45 * http://www.usb.org/developers/docs/usb_20.zip 46 * 47 */ 48 49 /* 50 * TODO: 51 * 1) hold off explorations by companion controllers until ehci has started. 52 * 53 * 2) The EHCI driver lacks support for interrupt isochronous transfers, so 54 * devices using them don't work. 55 * Interrupt transfers are not difficult, it's just not done. 56 * 57 * 3) The meaty part to implement is the support for USB 2.0 hubs. 58 * They are quite complicated since the need to be able to do 59 * "transaction translation", i.e., converting to/from USB 2 and USB 1. 60 * So the hub driver needs to handle and schedule these things, to 61 * assign place in frame where different devices get to go. See chapter 62 * on hubs in USB 2.0 for details. 63 * 64 * 4) command failures are not recovered correctly 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.76 2004/10/21 18:14:40 augustss Exp $"); 69 70 #include "ohci.h" 71 #include "uhci.h" 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/malloc.h> 77 #include <sys/device.h> 78 #include <sys/select.h> 79 #include <sys/proc.h> 80 #include <sys/queue.h> 81 82 #include <machine/bus.h> 83 #include <machine/endian.h> 84 85 #include <dev/usb/usb.h> 86 #include <dev/usb/usbdi.h> 87 #include <dev/usb/usbdivar.h> 88 #include <dev/usb/usb_mem.h> 89 #include <dev/usb/usb_quirks.h> 90 91 #include <dev/usb/ehcireg.h> 92 #include <dev/usb/ehcivar.h> 93 94 #ifdef EHCI_DEBUG 95 #define DPRINTF(x) do { if (ehcidebug) printf x; } while(0) 96 #define DPRINTFN(n,x) do { if (ehcidebug>(n)) printf x; } while (0) 97 int ehcidebug = 0; 98 #ifndef __NetBSD__ 99 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 100 #endif 101 #else 102 #define DPRINTF(x) 103 #define DPRINTFN(n,x) 104 #endif 105 106 struct ehci_pipe { 107 struct usbd_pipe pipe; 108 int nexttoggle; 109 110 ehci_soft_qh_t *sqh; 111 union { 112 ehci_soft_qtd_t *qtd; 113 /* ehci_soft_itd_t *itd; */ 114 } tail; 115 union { 116 /* Control pipe */ 117 struct { 118 usb_dma_t reqdma; 119 u_int length; 120 /*ehci_soft_qtd_t *setup, *data, *stat;*/ 121 } ctl; 122 /* Interrupt pipe */ 123 /* XXX */ 124 /* Bulk pipe */ 125 struct { 126 u_int length; 127 } bulk; 128 /* Iso pipe */ 129 /* XXX */ 130 } u; 131 }; 132 133 Static void ehci_shutdown(void *); 134 Static void ehci_power(int, void *); 135 136 Static usbd_status ehci_open(usbd_pipe_handle); 137 Static void ehci_poll(struct usbd_bus *); 138 Static void ehci_softintr(void *); 139 Static int ehci_intr1(ehci_softc_t *); 140 Static void ehci_waitintr(ehci_softc_t *, usbd_xfer_handle); 141 Static void ehci_check_intr(ehci_softc_t *, struct ehci_xfer *); 142 Static void ehci_idone(struct ehci_xfer *); 143 Static void ehci_timeout(void *); 144 Static void ehci_timeout_task(void *); 145 146 Static usbd_status ehci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 147 Static void ehci_freem(struct usbd_bus *, usb_dma_t *); 148 149 Static usbd_xfer_handle ehci_allocx(struct usbd_bus *); 150 Static void ehci_freex(struct usbd_bus *, usbd_xfer_handle); 151 152 Static usbd_status ehci_root_ctrl_transfer(usbd_xfer_handle); 153 Static usbd_status ehci_root_ctrl_start(usbd_xfer_handle); 154 Static void ehci_root_ctrl_abort(usbd_xfer_handle); 155 Static void ehci_root_ctrl_close(usbd_pipe_handle); 156 Static void ehci_root_ctrl_done(usbd_xfer_handle); 157 158 Static usbd_status ehci_root_intr_transfer(usbd_xfer_handle); 159 Static usbd_status ehci_root_intr_start(usbd_xfer_handle); 160 Static void ehci_root_intr_abort(usbd_xfer_handle); 161 Static void ehci_root_intr_close(usbd_pipe_handle); 162 Static void ehci_root_intr_done(usbd_xfer_handle); 163 164 Static usbd_status ehci_device_ctrl_transfer(usbd_xfer_handle); 165 Static usbd_status ehci_device_ctrl_start(usbd_xfer_handle); 166 Static void ehci_device_ctrl_abort(usbd_xfer_handle); 167 Static void ehci_device_ctrl_close(usbd_pipe_handle); 168 Static void ehci_device_ctrl_done(usbd_xfer_handle); 169 170 Static usbd_status ehci_device_bulk_transfer(usbd_xfer_handle); 171 Static usbd_status ehci_device_bulk_start(usbd_xfer_handle); 172 Static void ehci_device_bulk_abort(usbd_xfer_handle); 173 Static void ehci_device_bulk_close(usbd_pipe_handle); 174 Static void ehci_device_bulk_done(usbd_xfer_handle); 175 176 Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle); 177 Static usbd_status ehci_device_intr_start(usbd_xfer_handle); 178 Static void ehci_device_intr_abort(usbd_xfer_handle); 179 Static void ehci_device_intr_close(usbd_pipe_handle); 180 Static void ehci_device_intr_done(usbd_xfer_handle); 181 182 Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle); 183 Static usbd_status ehci_device_isoc_start(usbd_xfer_handle); 184 Static void ehci_device_isoc_abort(usbd_xfer_handle); 185 Static void ehci_device_isoc_close(usbd_pipe_handle); 186 Static void ehci_device_isoc_done(usbd_xfer_handle); 187 188 Static void ehci_device_clear_toggle(usbd_pipe_handle pipe); 189 Static void ehci_noop(usbd_pipe_handle pipe); 190 191 Static int ehci_str(usb_string_descriptor_t *, int, char *); 192 Static void ehci_pcd(ehci_softc_t *, usbd_xfer_handle); 193 Static void ehci_pcd_able(ehci_softc_t *, int); 194 Static void ehci_pcd_enable(void *); 195 Static void ehci_disown(ehci_softc_t *, int, int); 196 197 Static ehci_soft_qh_t *ehci_alloc_sqh(ehci_softc_t *); 198 Static void ehci_free_sqh(ehci_softc_t *, ehci_soft_qh_t *); 199 200 Static ehci_soft_qtd_t *ehci_alloc_sqtd(ehci_softc_t *); 201 Static void ehci_free_sqtd(ehci_softc_t *, ehci_soft_qtd_t *); 202 Static usbd_status ehci_alloc_sqtd_chain(struct ehci_pipe *, 203 ehci_softc_t *, int, int, usbd_xfer_handle, 204 ehci_soft_qtd_t **, ehci_soft_qtd_t **); 205 Static void ehci_free_sqtd_chain(ehci_softc_t *, ehci_soft_qtd_t *, 206 ehci_soft_qtd_t *); 207 208 Static usbd_status ehci_device_request(usbd_xfer_handle xfer); 209 210 Static void ehci_add_qh(ehci_soft_qh_t *, ehci_soft_qh_t *); 211 Static void ehci_rem_qh(ehci_softc_t *, ehci_soft_qh_t *, 212 ehci_soft_qh_t *); 213 Static void ehci_set_qh_qtd(ehci_soft_qh_t *, ehci_soft_qtd_t *); 214 Static void ehci_sync_hc(ehci_softc_t *); 215 216 Static void ehci_close_pipe(usbd_pipe_handle, ehci_soft_qh_t *); 217 Static void ehci_abort_xfer(usbd_xfer_handle, usbd_status); 218 219 #ifdef EHCI_DEBUG 220 Static void ehci_dump_regs(ehci_softc_t *); 221 Static void ehci_dump(void); 222 Static ehci_softc_t *theehci; 223 Static void ehci_dump_link(ehci_link_t, int); 224 Static void ehci_dump_sqtds(ehci_soft_qtd_t *); 225 Static void ehci_dump_sqtd(ehci_soft_qtd_t *); 226 Static void ehci_dump_qtd(ehci_qtd_t *); 227 Static void ehci_dump_sqh(ehci_soft_qh_t *); 228 #ifdef DIAGNOSTIC 229 Static void ehci_dump_exfer(struct ehci_xfer *); 230 #endif 231 #endif 232 233 #define EHCI_NULL htole32(EHCI_LINK_TERMINATE) 234 235 #define EHCI_INTR_ENDPT 1 236 237 #define ehci_add_intr_list(sc, ex) \ 238 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ex), inext); 239 #define ehci_del_intr_list(ex) \ 240 do { \ 241 LIST_REMOVE((ex), inext); \ 242 (ex)->inext.le_prev = NULL; \ 243 } while (0) 244 #define ehci_active_intr_list(ex) ((ex)->inext.le_prev != NULL) 245 246 Static struct usbd_bus_methods ehci_bus_methods = { 247 ehci_open, 248 ehci_softintr, 249 ehci_poll, 250 ehci_allocm, 251 ehci_freem, 252 ehci_allocx, 253 ehci_freex, 254 }; 255 256 Static struct usbd_pipe_methods ehci_root_ctrl_methods = { 257 ehci_root_ctrl_transfer, 258 ehci_root_ctrl_start, 259 ehci_root_ctrl_abort, 260 ehci_root_ctrl_close, 261 ehci_noop, 262 ehci_root_ctrl_done, 263 }; 264 265 Static struct usbd_pipe_methods ehci_root_intr_methods = { 266 ehci_root_intr_transfer, 267 ehci_root_intr_start, 268 ehci_root_intr_abort, 269 ehci_root_intr_close, 270 ehci_noop, 271 ehci_root_intr_done, 272 }; 273 274 Static struct usbd_pipe_methods ehci_device_ctrl_methods = { 275 ehci_device_ctrl_transfer, 276 ehci_device_ctrl_start, 277 ehci_device_ctrl_abort, 278 ehci_device_ctrl_close, 279 ehci_noop, 280 ehci_device_ctrl_done, 281 }; 282 283 Static struct usbd_pipe_methods ehci_device_intr_methods = { 284 ehci_device_intr_transfer, 285 ehci_device_intr_start, 286 ehci_device_intr_abort, 287 ehci_device_intr_close, 288 ehci_device_clear_toggle, 289 ehci_device_intr_done, 290 }; 291 292 Static struct usbd_pipe_methods ehci_device_bulk_methods = { 293 ehci_device_bulk_transfer, 294 ehci_device_bulk_start, 295 ehci_device_bulk_abort, 296 ehci_device_bulk_close, 297 ehci_device_clear_toggle, 298 ehci_device_bulk_done, 299 }; 300 301 Static struct usbd_pipe_methods ehci_device_isoc_methods = { 302 ehci_device_isoc_transfer, 303 ehci_device_isoc_start, 304 ehci_device_isoc_abort, 305 ehci_device_isoc_close, 306 ehci_noop, 307 ehci_device_isoc_done, 308 }; 309 310 usbd_status 311 ehci_init(ehci_softc_t *sc) 312 { 313 u_int32_t version, sparams, cparams, hcr; 314 u_int i; 315 usbd_status err; 316 ehci_soft_qh_t *sqh; 317 318 DPRINTF(("ehci_init: start\n")); 319 #ifdef EHCI_DEBUG 320 theehci = sc; 321 #endif 322 323 sc->sc_offs = EREAD1(sc, EHCI_CAPLENGTH); 324 325 version = EREAD2(sc, EHCI_HCIVERSION); 326 aprint_normal("%s: EHCI version %x.%x\n", USBDEVNAME(sc->sc_bus.bdev), 327 version >> 8, version & 0xff); 328 329 sparams = EREAD4(sc, EHCI_HCSPARAMS); 330 DPRINTF(("ehci_init: sparams=0x%x\n", sparams)); 331 sc->sc_npcomp = EHCI_HCS_N_PCC(sparams); 332 if (EHCI_HCS_N_CC(sparams) != sc->sc_ncomp) { 333 aprint_error("%s: wrong number of companions (%d != %d)\n", 334 USBDEVNAME(sc->sc_bus.bdev), 335 EHCI_HCS_N_CC(sparams), sc->sc_ncomp); 336 #if NOHCI == 0 || NUHCI == 0 337 aprint_error("%s: ohci or uhci probably not configured\n", 338 USBDEVNAME(sc->sc_bus.bdev)); 339 #endif 340 return (USBD_IOERROR); 341 } 342 if (sc->sc_ncomp > 0) { 343 aprint_normal("%s: companion controller%s, %d port%s each:", 344 USBDEVNAME(sc->sc_bus.bdev), sc->sc_ncomp!=1 ? "s" : "", 345 EHCI_HCS_N_PCC(sparams), 346 EHCI_HCS_N_PCC(sparams)!=1 ? "s" : ""); 347 for (i = 0; i < sc->sc_ncomp; i++) 348 aprint_normal(" %s", USBDEVNAME(sc->sc_comps[i]->bdev)); 349 aprint_normal("\n"); 350 } 351 sc->sc_noport = EHCI_HCS_N_PORTS(sparams); 352 cparams = EREAD4(sc, EHCI_HCCPARAMS); 353 DPRINTF(("ehci_init: cparams=0x%x\n", cparams)); 354 355 if (EHCI_HCC_64BIT(cparams)) { 356 /* MUST clear segment register if 64 bit capable. */ 357 EWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 358 } 359 360 sc->sc_bus.usbrev = USBREV_2_0; 361 362 /* Reset the controller */ 363 DPRINTF(("%s: resetting\n", USBDEVNAME(sc->sc_bus.bdev))); 364 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 365 usb_delay_ms(&sc->sc_bus, 1); 366 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 367 for (i = 0; i < 100; i++) { 368 usb_delay_ms(&sc->sc_bus, 1); 369 hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET; 370 if (!hcr) 371 break; 372 } 373 if (hcr) { 374 aprint_error("%s: reset timeout\n", 375 USBDEVNAME(sc->sc_bus.bdev)); 376 return (USBD_IOERROR); 377 } 378 379 /* frame list size at default, read back what we got and use that */ 380 switch (EHCI_CMD_FLS(EOREAD4(sc, EHCI_USBCMD))) { 381 case 0: sc->sc_flsize = 1024*4; break; 382 case 1: sc->sc_flsize = 512*4; break; 383 case 2: sc->sc_flsize = 256*4; break; 384 case 3: return (USBD_IOERROR); 385 } 386 err = usb_allocmem(&sc->sc_bus, sc->sc_flsize, 387 EHCI_FLALIGN_ALIGN, &sc->sc_fldma); 388 if (err) 389 return (err); 390 DPRINTF(("%s: flsize=%d\n", USBDEVNAME(sc->sc_bus.bdev),sc->sc_flsize)); 391 392 /* Set up the bus struct. */ 393 sc->sc_bus.methods = &ehci_bus_methods; 394 sc->sc_bus.pipe_size = sizeof(struct ehci_pipe); 395 396 sc->sc_powerhook = powerhook_establish(ehci_power, sc); 397 sc->sc_shutdownhook = shutdownhook_establish(ehci_shutdown, sc); 398 399 sc->sc_eintrs = EHCI_NORMAL_INTRS; 400 401 /* Allocate dummy QH that starts the async list. */ 402 sqh = ehci_alloc_sqh(sc); 403 if (sqh == NULL) { 404 err = USBD_NOMEM; 405 goto bad1; 406 } 407 /* Fill the QH */ 408 sqh->qh.qh_endp = 409 htole32(EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) | EHCI_QH_HRECL); 410 sqh->qh.qh_link = 411 htole32(sqh->physaddr | EHCI_LINK_QH); 412 sqh->qh.qh_curqtd = EHCI_NULL; 413 sqh->next = NULL; 414 /* Fill the overlay qTD */ 415 sqh->qh.qh_qtd.qtd_next = EHCI_NULL; 416 sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; 417 sqh->qh.qh_qtd.qtd_status = htole32(EHCI_QTD_HALTED); 418 sqh->sqtd = NULL; 419 #ifdef EHCI_DEBUG 420 if (ehcidebug) { 421 ehci_dump_sqh(sqh); 422 } 423 #endif 424 425 /* Point to async list */ 426 sc->sc_async_head = sqh; 427 EOWRITE4(sc, EHCI_ASYNCLISTADDR, sqh->physaddr | EHCI_LINK_QH); 428 429 usb_callout_init(sc->sc_tmo_pcd); 430 431 lockinit(&sc->sc_doorbell_lock, PZERO, "ehcidb", 0, 0); 432 433 /* Enable interrupts */ 434 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 435 436 /* Turn on controller */ 437 EOWRITE4(sc, EHCI_USBCMD, 438 EHCI_CMD_ITC_8 | /* 8 microframes */ 439 (EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_FLS_M) | 440 EHCI_CMD_ASE | 441 /* EHCI_CMD_PSE | */ 442 EHCI_CMD_RS); 443 444 /* Take over port ownership */ 445 EOWRITE4(sc, EHCI_CONFIGFLAG, EHCI_CONF_CF); 446 447 for (i = 0; i < 100; i++) { 448 usb_delay_ms(&sc->sc_bus, 1); 449 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 450 if (!hcr) 451 break; 452 } 453 if (hcr) { 454 aprint_error("%s: run timeout\n", USBDEVNAME(sc->sc_bus.bdev)); 455 return (USBD_IOERROR); 456 } 457 458 return (USBD_NORMAL_COMPLETION); 459 460 #if 0 461 bad2: 462 ehci_free_sqh(sc, sc->sc_async_head); 463 #endif 464 bad1: 465 usb_freemem(&sc->sc_bus, &sc->sc_fldma); 466 return (err); 467 } 468 469 int 470 ehci_intr(void *v) 471 { 472 ehci_softc_t *sc = v; 473 474 if (sc == NULL || sc->sc_dying) 475 return (0); 476 477 /* If we get an interrupt while polling, then just ignore it. */ 478 if (sc->sc_bus.use_polling) { 479 #ifdef DIAGNOSTIC 480 DPRINTFN(16, ("ehci_intr: ignored interrupt while polling\n")); 481 #endif 482 return (0); 483 } 484 485 return (ehci_intr1(sc)); 486 } 487 488 Static int 489 ehci_intr1(ehci_softc_t *sc) 490 { 491 u_int32_t intrs, eintrs; 492 493 DPRINTFN(20,("ehci_intr1: enter\n")); 494 495 /* In case the interrupt occurs before initialization has completed. */ 496 if (sc == NULL) { 497 #ifdef DIAGNOSTIC 498 printf("ehci_intr1: sc == NULL\n"); 499 #endif 500 return (0); 501 } 502 503 intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 504 if (!intrs) 505 return (0); 506 507 eintrs = intrs & sc->sc_eintrs; 508 DPRINTFN(7, ("ehci_intr1: sc=%p intrs=0x%x(0x%x) eintrs=0x%x\n", 509 sc, (u_int)intrs, EOREAD4(sc, EHCI_USBSTS), 510 (u_int)eintrs)); 511 if (!eintrs) 512 return (0); 513 514 EOWRITE4(sc, EHCI_USBSTS, intrs); /* Acknowledge */ 515 sc->sc_bus.intr_context++; 516 sc->sc_bus.no_intrs++; 517 if (eintrs & EHCI_STS_IAA) { 518 DPRINTF(("ehci_intr1: door bell\n")); 519 wakeup(&sc->sc_async_head); 520 eintrs &= ~EHCI_STS_IAA; 521 } 522 if (eintrs & (EHCI_STS_INT | EHCI_STS_ERRINT)) { 523 DPRINTFN(5,("ehci_intr1: %s %s\n", 524 eintrs & EHCI_STS_INT ? "INT" : "", 525 eintrs & EHCI_STS_ERRINT ? "ERRINT" : "")); 526 usb_schedsoftintr(&sc->sc_bus); 527 eintrs &= ~(EHCI_STS_INT | EHCI_STS_ERRINT); 528 } 529 if (eintrs & EHCI_STS_HSE) { 530 printf("%s: unrecoverable error, controller halted\n", 531 USBDEVNAME(sc->sc_bus.bdev)); 532 /* XXX what else */ 533 } 534 if (eintrs & EHCI_STS_PCD) { 535 ehci_pcd(sc, sc->sc_intrxfer); 536 /* 537 * Disable PCD interrupt for now, because it will be 538 * on until the port has been reset. 539 */ 540 ehci_pcd_able(sc, 0); 541 /* Do not allow RHSC interrupts > 1 per second */ 542 usb_callout(sc->sc_tmo_pcd, hz, ehci_pcd_enable, sc); 543 eintrs &= ~EHCI_STS_PCD; 544 } 545 546 sc->sc_bus.intr_context--; 547 548 if (eintrs != 0) { 549 /* Block unprocessed interrupts. */ 550 sc->sc_eintrs &= ~eintrs; 551 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 552 printf("%s: blocking intrs 0x%x\n", 553 USBDEVNAME(sc->sc_bus.bdev), eintrs); 554 } 555 556 return (1); 557 } 558 559 void 560 ehci_pcd_able(ehci_softc_t *sc, int on) 561 { 562 DPRINTFN(4, ("ehci_pcd_able: on=%d\n", on)); 563 if (on) 564 sc->sc_eintrs |= EHCI_STS_PCD; 565 else 566 sc->sc_eintrs &= ~EHCI_STS_PCD; 567 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 568 } 569 570 void 571 ehci_pcd_enable(void *v_sc) 572 { 573 ehci_softc_t *sc = v_sc; 574 575 ehci_pcd_able(sc, 1); 576 } 577 578 void 579 ehci_pcd(ehci_softc_t *sc, usbd_xfer_handle xfer) 580 { 581 usbd_pipe_handle pipe; 582 u_char *p; 583 int i, m; 584 585 if (xfer == NULL) { 586 /* Just ignore the change. */ 587 return; 588 } 589 590 pipe = xfer->pipe; 591 592 p = KERNADDR(&xfer->dmabuf, 0); 593 m = min(sc->sc_noport, xfer->length * 8 - 1); 594 memset(p, 0, xfer->length); 595 for (i = 1; i <= m; i++) { 596 /* Pick out CHANGE bits from the status reg. */ 597 if (EOREAD4(sc, EHCI_PORTSC(i)) & EHCI_PS_CLEAR) 598 p[i/8] |= 1 << (i%8); 599 } 600 DPRINTF(("ehci_pcd: change=0x%02x\n", *p)); 601 xfer->actlen = xfer->length; 602 xfer->status = USBD_NORMAL_COMPLETION; 603 604 usb_transfer_complete(xfer); 605 } 606 607 void 608 ehci_softintr(void *v) 609 { 610 ehci_softc_t *sc = v; 611 struct ehci_xfer *ex, *nextex; 612 613 DPRINTFN(10,("%s: ehci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 614 sc->sc_bus.intr_context)); 615 616 sc->sc_bus.intr_context++; 617 618 /* 619 * The only explanation I can think of for why EHCI is as brain dead 620 * as UHCI interrupt-wise is that Intel was involved in both. 621 * An interrupt just tells us that something is done, we have no 622 * clue what, so we need to scan through all active transfers. :-( 623 */ 624 for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = nextex) { 625 nextex = LIST_NEXT(ex, inext); 626 ehci_check_intr(sc, ex); 627 } 628 629 if (sc->sc_softwake) { 630 sc->sc_softwake = 0; 631 wakeup(&sc->sc_softwake); 632 } 633 634 sc->sc_bus.intr_context--; 635 } 636 637 /* Check for an interrupt. */ 638 void 639 ehci_check_intr(ehci_softc_t *sc, struct ehci_xfer *ex) 640 { 641 ehci_soft_qtd_t *sqtd, *lsqtd; 642 u_int32_t status; 643 644 DPRINTFN(/*15*/2, ("ehci_check_intr: ex=%p\n", ex)); 645 646 if (ex->sqtdstart == NULL) { 647 printf("ehci_check_intr: sqtdstart=NULL\n"); 648 return; 649 } 650 lsqtd = ex->sqtdend; 651 #ifdef DIAGNOSTIC 652 if (lsqtd == NULL) { 653 printf("ehci_check_intr: sqtd==0\n"); 654 return; 655 } 656 #endif 657 /* 658 * If the last TD is still active we need to check whether there 659 * is a an error somewhere in the middle, or whether there was a 660 * short packet (SPD and not ACTIVE). 661 */ 662 if (le32toh(lsqtd->qtd.qtd_status) & EHCI_QTD_ACTIVE) { 663 DPRINTFN(12, ("ehci_check_intr: active ex=%p\n", ex)); 664 for (sqtd = ex->sqtdstart; sqtd != lsqtd; sqtd=sqtd->nextqtd) { 665 status = le32toh(sqtd->qtd.qtd_status); 666 /* If there's an active QTD the xfer isn't done. */ 667 if (status & EHCI_QTD_ACTIVE) 668 break; 669 /* Any kind of error makes the xfer done. */ 670 if (status & EHCI_QTD_HALTED) 671 goto done; 672 /* We want short packets, and it is short: it's done */ 673 if (EHCI_QTD_GET_BYTES(status) != 0) 674 goto done; 675 } 676 DPRINTFN(12, ("ehci_check_intr: ex=%p std=%p still active\n", 677 ex, ex->sqtdstart)); 678 return; 679 } 680 done: 681 DPRINTFN(12, ("ehci_check_intr: ex=%p done\n", ex)); 682 usb_uncallout(ex->xfer.timeout_handle, ehci_timeout, ex); 683 ehci_idone(ex); 684 } 685 686 void 687 ehci_idone(struct ehci_xfer *ex) 688 { 689 usbd_xfer_handle xfer = &ex->xfer; 690 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 691 ehci_soft_qtd_t *sqtd; 692 u_int32_t status = 0, nstatus; 693 int actlen; 694 695 DPRINTFN(/*12*/2, ("ehci_idone: ex=%p\n", ex)); 696 #ifdef DIAGNOSTIC 697 { 698 int s = splhigh(); 699 if (ex->isdone) { 700 splx(s); 701 #ifdef EHCI_DEBUG 702 printf("ehci_idone: ex is done!\n "); 703 ehci_dump_exfer(ex); 704 #else 705 printf("ehci_idone: ex=%p is done!\n", ex); 706 #endif 707 return; 708 } 709 ex->isdone = 1; 710 splx(s); 711 } 712 #endif 713 714 if (xfer->status == USBD_CANCELLED || 715 xfer->status == USBD_TIMEOUT) { 716 DPRINTF(("ehci_idone: aborted xfer=%p\n", xfer)); 717 return; 718 } 719 720 #ifdef EHCI_DEBUG 721 DPRINTFN(/*10*/2, ("ehci_idone: xfer=%p, pipe=%p ready\n", xfer, epipe)); 722 if (ehcidebug > 10) 723 ehci_dump_sqtds(ex->sqtdstart); 724 #endif 725 726 /* The transfer is done, compute actual length and status. */ 727 actlen = 0; 728 for (sqtd = ex->sqtdstart; sqtd != NULL; sqtd = sqtd->nextqtd) { 729 nstatus = le32toh(sqtd->qtd.qtd_status); 730 if (nstatus & EHCI_QTD_ACTIVE) 731 break; 732 733 status = nstatus; 734 /* halt is ok if descriptor is last, and complete */ 735 if (sqtd->qtd.qtd_next == EHCI_NULL && 736 EHCI_QTD_GET_BYTES(status) == 0) 737 status &= ~EHCI_QTD_HALTED; 738 if (EHCI_QTD_GET_PID(status) != EHCI_QTD_PID_SETUP) 739 actlen += sqtd->len - EHCI_QTD_GET_BYTES(status); 740 } 741 742 /* If there are left over TDs we need to update the toggle. */ 743 if (sqtd != NULL) { 744 printf("ehci_idone: need toggle update status=%08x nstatus=%08x\n", status, nstatus); 745 #if 0 746 ehci_dump_sqh(epipe->sqh); 747 ehci_dump_sqtds(ex->sqtdstart); 748 #endif 749 epipe->nexttoggle = EHCI_QTD_GET_TOGGLE(nstatus); 750 } 751 752 status &= EHCI_QTD_STATERRS; 753 DPRINTFN(/*10*/2, ("ehci_idone: len=%d, actlen=%d, status=0x%x\n", 754 xfer->length, actlen, status)); 755 xfer->actlen = actlen; 756 if (status != 0) { 757 #ifdef EHCI_DEBUG 758 char sbuf[128]; 759 760 bitmask_snprintf((u_int32_t)status, 761 "\20\7HALTED\6BUFERR\5BABBLE\4XACTERR" 762 "\3MISSED", sbuf, sizeof(sbuf)); 763 764 DPRINTFN((status == EHCI_QTD_HALTED)*/*10*/2, 765 ("ehci_idone: error, addr=%d, endpt=0x%02x, " 766 "status 0x%s\n", 767 xfer->pipe->device->address, 768 xfer->pipe->endpoint->edesc->bEndpointAddress, 769 sbuf)); 770 if (ehcidebug > 2) { 771 ehci_dump_sqh(epipe->sqh); 772 ehci_dump_sqtds(ex->sqtdstart); 773 } 774 #endif 775 if (status == EHCI_QTD_HALTED) 776 xfer->status = USBD_STALLED; 777 else 778 xfer->status = USBD_IOERROR; /* more info XXX */ 779 } else { 780 xfer->status = USBD_NORMAL_COMPLETION; 781 } 782 783 usb_transfer_complete(xfer); 784 DPRINTFN(/*12*/2, ("ehci_idone: ex=%p done\n", ex)); 785 } 786 787 /* 788 * Wait here until controller claims to have an interrupt. 789 * Then call ehci_intr and return. Use timeout to avoid waiting 790 * too long. 791 */ 792 void 793 ehci_waitintr(ehci_softc_t *sc, usbd_xfer_handle xfer) 794 { 795 int timo = xfer->timeout; 796 int usecs; 797 u_int32_t intrs; 798 799 xfer->status = USBD_IN_PROGRESS; 800 for (usecs = timo * 1000000 / hz; usecs > 0; usecs -= 1000) { 801 usb_delay_ms(&sc->sc_bus, 1); 802 if (sc->sc_dying) 803 break; 804 intrs = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)) & 805 sc->sc_eintrs; 806 DPRINTFN(15,("ehci_waitintr: 0x%04x\n", intrs)); 807 #ifdef EHCI_DEBUG 808 if (ehcidebug > 15) 809 ehci_dump_regs(sc); 810 #endif 811 if (intrs) { 812 ehci_intr1(sc); 813 if (xfer->status != USBD_IN_PROGRESS) 814 return; 815 } 816 } 817 818 /* Timeout */ 819 DPRINTF(("ehci_waitintr: timeout\n")); 820 xfer->status = USBD_TIMEOUT; 821 usb_transfer_complete(xfer); 822 /* XXX should free TD */ 823 } 824 825 void 826 ehci_poll(struct usbd_bus *bus) 827 { 828 ehci_softc_t *sc = (ehci_softc_t *)bus; 829 #ifdef EHCI_DEBUG 830 static int last; 831 int new; 832 new = EHCI_STS_INTRS(EOREAD4(sc, EHCI_USBSTS)); 833 if (new != last) { 834 DPRINTFN(10,("ehci_poll: intrs=0x%04x\n", new)); 835 last = new; 836 } 837 #endif 838 839 if (EOREAD4(sc, EHCI_USBSTS) & sc->sc_eintrs) 840 ehci_intr1(sc); 841 } 842 843 int 844 ehci_detach(struct ehci_softc *sc, int flags) 845 { 846 int rv = 0; 847 848 if (sc->sc_child != NULL) 849 rv = config_detach(sc->sc_child, flags); 850 851 if (rv != 0) 852 return (rv); 853 854 usb_uncallout(sc->sc_tmo_pcd, ehci_pcd_enable, sc); 855 856 if (sc->sc_powerhook != NULL) 857 powerhook_disestablish(sc->sc_powerhook); 858 if (sc->sc_shutdownhook != NULL) 859 shutdownhook_disestablish(sc->sc_shutdownhook); 860 861 usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */ 862 863 /* XXX free other data structures XXX */ 864 865 return (rv); 866 } 867 868 869 int 870 ehci_activate(device_ptr_t self, enum devact act) 871 { 872 struct ehci_softc *sc = (struct ehci_softc *)self; 873 int rv = 0; 874 875 switch (act) { 876 case DVACT_ACTIVATE: 877 return (EOPNOTSUPP); 878 879 case DVACT_DEACTIVATE: 880 if (sc->sc_child != NULL) 881 rv = config_deactivate(sc->sc_child); 882 sc->sc_dying = 1; 883 break; 884 } 885 return (rv); 886 } 887 888 /* 889 * Handle suspend/resume. 890 * 891 * We need to switch to polling mode here, because this routine is 892 * called from an interrupt context. This is all right since we 893 * are almost suspended anyway. 894 */ 895 void 896 ehci_power(int why, void *v) 897 { 898 ehci_softc_t *sc = v; 899 u_int32_t cmd, hcr; 900 int s, i; 901 902 #ifdef EHCI_DEBUG 903 DPRINTF(("ehci_power: sc=%p, why=%d\n", sc, why)); 904 if (ehcidebug > 0) 905 ehci_dump_regs(sc); 906 #endif 907 908 s = splhardusb(); 909 switch (why) { 910 case PWR_SUSPEND: 911 case PWR_STANDBY: 912 sc->sc_bus.use_polling++; 913 914 sc->sc_cmd = EOREAD4(sc, EHCI_USBCMD); 915 916 cmd = sc->sc_cmd & ~(EHCI_CMD_ASE | EHCI_CMD_PSE); 917 EOWRITE4(sc, EHCI_USBCMD, cmd); 918 919 for (i = 0; i < 100; i++) { 920 hcr = EOREAD4(sc, EHCI_USBSTS) & 921 (EHCI_STS_ASS | EHCI_STS_PSS); 922 if (hcr == 0) 923 break; 924 925 usb_delay_ms(&sc->sc_bus, 1); 926 } 927 if (hcr != 0) { 928 printf("%s: reset timeout\n", 929 USBDEVNAME(sc->sc_bus.bdev)); 930 } 931 932 cmd &= ~EHCI_CMD_RS; 933 EOWRITE4(sc, EHCI_USBCMD, cmd); 934 935 for (i = 0; i < 100; i++) { 936 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 937 if (hcr == EHCI_STS_HCH) 938 break; 939 940 usb_delay_ms(&sc->sc_bus, 1); 941 } 942 if (hcr != EHCI_STS_HCH) { 943 printf("%s: config timeout\n", 944 USBDEVNAME(sc->sc_bus.bdev)); 945 } 946 947 sc->sc_bus.use_polling--; 948 break; 949 950 case PWR_RESUME: 951 sc->sc_bus.use_polling++; 952 953 /* restore things in case the bios sucks */ 954 EOWRITE4(sc, EHCI_CTRLDSSEGMENT, 0); 955 EOWRITE4(sc, EHCI_PERIODICLISTBASE, DMAADDR(&sc->sc_fldma, 0)); 956 EOWRITE4(sc, EHCI_ASYNCLISTADDR, 957 sc->sc_async_head->physaddr | EHCI_LINK_QH); 958 EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs); 959 960 EOWRITE4(sc, EHCI_USBCMD, sc->sc_cmd); 961 962 for (i = 0; i < 100; i++) { 963 hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH; 964 if (hcr != EHCI_STS_HCH) 965 break; 966 967 usb_delay_ms(&sc->sc_bus, 1); 968 } 969 if (hcr == EHCI_STS_HCH) { 970 printf("%s: config timeout\n", 971 USBDEVNAME(sc->sc_bus.bdev)); 972 } 973 974 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 975 976 sc->sc_bus.use_polling--; 977 break; 978 case PWR_SOFTSUSPEND: 979 case PWR_SOFTSTANDBY: 980 case PWR_SOFTRESUME: 981 break; 982 } 983 splx(s); 984 985 #ifdef EHCI_DEBUG 986 DPRINTF(("ehci_power: sc=%p\n", sc)); 987 if (ehcidebug > 0) 988 ehci_dump_regs(sc); 989 #endif 990 } 991 992 /* 993 * Shut down the controller when the system is going down. 994 */ 995 void 996 ehci_shutdown(void *v) 997 { 998 ehci_softc_t *sc = v; 999 1000 DPRINTF(("ehci_shutdown: stopping the HC\n")); 1001 EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */ 1002 EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET); 1003 } 1004 1005 usbd_status 1006 ehci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 1007 { 1008 struct ehci_softc *sc = (struct ehci_softc *)bus; 1009 usbd_status err; 1010 1011 err = usb_allocmem(&sc->sc_bus, size, 0, dma); 1012 #ifdef EHCI_DEBUG 1013 if (err) 1014 printf("ehci_allocm: usb_allocmem()=%d\n", err); 1015 #endif 1016 return (err); 1017 } 1018 1019 void 1020 ehci_freem(struct usbd_bus *bus, usb_dma_t *dma) 1021 { 1022 struct ehci_softc *sc = (struct ehci_softc *)bus; 1023 1024 usb_freemem(&sc->sc_bus, dma); 1025 } 1026 1027 usbd_xfer_handle 1028 ehci_allocx(struct usbd_bus *bus) 1029 { 1030 struct ehci_softc *sc = (struct ehci_softc *)bus; 1031 usbd_xfer_handle xfer; 1032 1033 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 1034 if (xfer != NULL) { 1035 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 1036 #ifdef DIAGNOSTIC 1037 if (xfer->busy_free != XFER_FREE) { 1038 printf("ehci_allocx: xfer=%p not free, 0x%08x\n", xfer, 1039 xfer->busy_free); 1040 } 1041 #endif 1042 } else { 1043 xfer = malloc(sizeof(struct ehci_xfer), M_USB, M_NOWAIT); 1044 } 1045 if (xfer != NULL) { 1046 memset(xfer, 0, sizeof(struct ehci_xfer)); 1047 #ifdef DIAGNOSTIC 1048 EXFER(xfer)->isdone = 1; 1049 xfer->busy_free = XFER_BUSY; 1050 #endif 1051 } 1052 return (xfer); 1053 } 1054 1055 void 1056 ehci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 1057 { 1058 struct ehci_softc *sc = (struct ehci_softc *)bus; 1059 1060 #ifdef DIAGNOSTIC 1061 if (xfer->busy_free != XFER_BUSY) { 1062 printf("ehci_freex: xfer=%p not busy, 0x%08x\n", xfer, 1063 xfer->busy_free); 1064 return; 1065 } 1066 xfer->busy_free = XFER_FREE; 1067 if (!EXFER(xfer)->isdone) { 1068 printf("ehci_freex: !isdone\n"); 1069 return; 1070 } 1071 #endif 1072 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 1073 } 1074 1075 Static void 1076 ehci_device_clear_toggle(usbd_pipe_handle pipe) 1077 { 1078 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 1079 1080 DPRINTF(("ehci_device_clear_toggle: epipe=%p status=0x%x\n", 1081 epipe, epipe->sqh->qh.qh_qtd.qtd_status)); 1082 #ifdef USB_DEBUG 1083 if (ehcidebug) 1084 usbd_dump_pipe(pipe); 1085 #endif 1086 epipe->nexttoggle = 0; 1087 } 1088 1089 Static void 1090 ehci_noop(usbd_pipe_handle pipe) 1091 { 1092 } 1093 1094 #ifdef EHCI_DEBUG 1095 void 1096 ehci_dump_regs(ehci_softc_t *sc) 1097 { 1098 int i; 1099 printf("cmd=0x%08x, sts=0x%08x, ien=0x%08x\n", 1100 EOREAD4(sc, EHCI_USBCMD), 1101 EOREAD4(sc, EHCI_USBSTS), 1102 EOREAD4(sc, EHCI_USBINTR)); 1103 printf("frindex=0x%08x ctrdsegm=0x%08x periodic=0x%08x async=0x%08x\n", 1104 EOREAD4(sc, EHCI_FRINDEX), 1105 EOREAD4(sc, EHCI_CTRLDSSEGMENT), 1106 EOREAD4(sc, EHCI_PERIODICLISTBASE), 1107 EOREAD4(sc, EHCI_ASYNCLISTADDR)); 1108 for (i = 1; i <= sc->sc_noport; i++) 1109 printf("port %d status=0x%08x\n", i, 1110 EOREAD4(sc, EHCI_PORTSC(i))); 1111 } 1112 1113 /* 1114 * Unused function - this is meant to be called from a kernel 1115 * debugger. 1116 */ 1117 void 1118 ehci_dump() 1119 { 1120 ehci_dump_regs(theehci); 1121 } 1122 1123 void 1124 ehci_dump_link(ehci_link_t link, int type) 1125 { 1126 link = le32toh(link); 1127 printf("0x%08x", link); 1128 if (link & EHCI_LINK_TERMINATE) 1129 printf("<T>"); 1130 else { 1131 printf("<"); 1132 if (type) { 1133 switch (EHCI_LINK_TYPE(link)) { 1134 case EHCI_LINK_ITD: printf("ITD"); break; 1135 case EHCI_LINK_QH: printf("QH"); break; 1136 case EHCI_LINK_SITD: printf("SITD"); break; 1137 case EHCI_LINK_FSTN: printf("FSTN"); break; 1138 } 1139 } 1140 printf(">"); 1141 } 1142 } 1143 1144 void 1145 ehci_dump_sqtds(ehci_soft_qtd_t *sqtd) 1146 { 1147 int i; 1148 u_int32_t stop; 1149 1150 stop = 0; 1151 for (i = 0; sqtd && i < 20 && !stop; sqtd = sqtd->nextqtd, i++) { 1152 ehci_dump_sqtd(sqtd); 1153 stop = sqtd->qtd.qtd_next & htole32(EHCI_LINK_TERMINATE); 1154 } 1155 if (sqtd) 1156 printf("dump aborted, too many TDs\n"); 1157 } 1158 1159 void 1160 ehci_dump_sqtd(ehci_soft_qtd_t *sqtd) 1161 { 1162 printf("QTD(%p) at 0x%08x:\n", sqtd, sqtd->physaddr); 1163 ehci_dump_qtd(&sqtd->qtd); 1164 } 1165 1166 void 1167 ehci_dump_qtd(ehci_qtd_t *qtd) 1168 { 1169 u_int32_t s; 1170 char sbuf[128]; 1171 1172 printf(" next="); ehci_dump_link(qtd->qtd_next, 0); 1173 printf(" altnext="); ehci_dump_link(qtd->qtd_altnext, 0); 1174 printf("\n"); 1175 s = le32toh(qtd->qtd_status); 1176 bitmask_snprintf(EHCI_QTD_GET_STATUS(s), 1177 "\20\10ACTIVE\7HALTED\6BUFERR\5BABBLE\4XACTERR" 1178 "\3MISSED\2SPLIT\1PING", sbuf, sizeof(sbuf)); 1179 printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n", 1180 s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s), 1181 EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s)); 1182 printf(" cerr=%d pid=%d stat=0x%s\n", EHCI_QTD_GET_CERR(s), 1183 EHCI_QTD_GET_PID(s), sbuf); 1184 for (s = 0; s < 5; s++) 1185 printf(" buffer[%d]=0x%08x\n", s, le32toh(qtd->qtd_buffer[s])); 1186 } 1187 1188 void 1189 ehci_dump_sqh(ehci_soft_qh_t *sqh) 1190 { 1191 ehci_qh_t *qh = &sqh->qh; 1192 u_int32_t endp, endphub; 1193 1194 printf("QH(%p) at 0x%08x:\n", sqh, sqh->physaddr); 1195 printf(" link="); ehci_dump_link(qh->qh_link, 1); printf("\n"); 1196 endp = le32toh(qh->qh_endp); 1197 printf(" endp=0x%08x\n", endp); 1198 printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n", 1199 EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp), 1200 EHCI_QH_GET_ENDPT(endp), EHCI_QH_GET_EPS(endp), 1201 EHCI_QH_GET_DTC(endp), EHCI_QH_GET_HRECL(endp)); 1202 printf(" mpl=0x%x ctl=%d nrl=%d\n", 1203 EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp), 1204 EHCI_QH_GET_NRL(endp)); 1205 endphub = le32toh(qh->qh_endphub); 1206 printf(" endphub=0x%08x\n", endphub); 1207 printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n", 1208 EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub), 1209 EHCI_QH_GET_HUBA(endphub), EHCI_QH_GET_PORT(endphub), 1210 EHCI_QH_GET_MULT(endphub)); 1211 printf(" curqtd="); ehci_dump_link(qh->qh_curqtd, 0); printf("\n"); 1212 printf("Overlay qTD:\n"); 1213 ehci_dump_qtd(&qh->qh_qtd); 1214 } 1215 1216 #ifdef DIAGNOSTIC 1217 Static void 1218 ehci_dump_exfer(struct ehci_xfer *ex) 1219 { 1220 printf("ehci_dump_exfer: ex=%p\n", ex); 1221 } 1222 #endif 1223 #endif 1224 1225 usbd_status 1226 ehci_open(usbd_pipe_handle pipe) 1227 { 1228 usbd_device_handle dev = pipe->device; 1229 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 1230 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 1231 u_int8_t addr = dev->address; 1232 u_int8_t xfertype = ed->bmAttributes & UE_XFERTYPE; 1233 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 1234 ehci_soft_qh_t *sqh; 1235 usbd_status err; 1236 int s; 1237 int speed, naks; 1238 1239 DPRINTFN(1, ("ehci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 1240 pipe, addr, ed->bEndpointAddress, sc->sc_addr)); 1241 1242 if (sc->sc_dying) 1243 return (USBD_IOERROR); 1244 1245 epipe->nexttoggle = 0; 1246 1247 if (addr == sc->sc_addr) { 1248 switch (ed->bEndpointAddress) { 1249 case USB_CONTROL_ENDPOINT: 1250 pipe->methods = &ehci_root_ctrl_methods; 1251 break; 1252 case UE_DIR_IN | EHCI_INTR_ENDPT: 1253 pipe->methods = &ehci_root_intr_methods; 1254 break; 1255 default: 1256 return (USBD_INVAL); 1257 } 1258 return (USBD_NORMAL_COMPLETION); 1259 } 1260 1261 /* XXX All this stuff is only valid for async. */ 1262 switch (dev->speed) { 1263 case USB_SPEED_LOW: speed = EHCI_QH_SPEED_LOW; break; 1264 case USB_SPEED_FULL: speed = EHCI_QH_SPEED_FULL; break; 1265 case USB_SPEED_HIGH: speed = EHCI_QH_SPEED_HIGH; break; 1266 default: panic("ehci_open: bad device speed %d", dev->speed); 1267 } 1268 naks = 8; /* XXX */ 1269 sqh = ehci_alloc_sqh(sc); 1270 if (sqh == NULL) 1271 goto bad0; 1272 /* qh_link filled when the QH is added */ 1273 sqh->qh.qh_endp = htole32( 1274 EHCI_QH_SET_ADDR(addr) | 1275 EHCI_QH_SET_ENDPT(UE_GET_ADDR(ed->bEndpointAddress)) | 1276 EHCI_QH_SET_EPS(speed) | 1277 EHCI_QH_DTC | 1278 EHCI_QH_SET_MPL(UGETW(ed->wMaxPacketSize)) | 1279 (speed != EHCI_QH_SPEED_HIGH && xfertype == UE_CONTROL ? 1280 EHCI_QH_CTL : 0) | 1281 EHCI_QH_SET_NRL(naks) 1282 ); 1283 sqh->qh.qh_endphub = htole32( 1284 EHCI_QH_SET_MULT(1) 1285 /* XXX TT stuff */ 1286 /* XXX interrupt mask */ 1287 ); 1288 sqh->qh.qh_curqtd = EHCI_NULL; 1289 /* Fill the overlay qTD */ 1290 sqh->qh.qh_qtd.qtd_next = EHCI_NULL; 1291 sqh->qh.qh_qtd.qtd_altnext = EHCI_NULL; 1292 sqh->qh.qh_qtd.qtd_status = htole32(0); 1293 1294 epipe->sqh = sqh; 1295 1296 switch (xfertype) { 1297 case UE_CONTROL: 1298 err = usb_allocmem(&sc->sc_bus, sizeof(usb_device_request_t), 1299 0, &epipe->u.ctl.reqdma); 1300 #ifdef EHCI_DEBUG 1301 if (err) 1302 printf("ehci_open: usb_allocmem()=%d\n", err); 1303 #endif 1304 if (err) 1305 goto bad1; 1306 pipe->methods = &ehci_device_ctrl_methods; 1307 s = splusb(); 1308 ehci_add_qh(sqh, sc->sc_async_head); 1309 splx(s); 1310 break; 1311 case UE_BULK: 1312 pipe->methods = &ehci_device_bulk_methods; 1313 s = splusb(); 1314 ehci_add_qh(sqh, sc->sc_async_head); 1315 splx(s); 1316 break; 1317 case UE_INTERRUPT: 1318 pipe->methods = &ehci_device_intr_methods; 1319 return (USBD_INVAL); 1320 case UE_ISOCHRONOUS: 1321 pipe->methods = &ehci_device_isoc_methods; 1322 return (USBD_INVAL); 1323 default: 1324 return (USBD_INVAL); 1325 } 1326 return (USBD_NORMAL_COMPLETION); 1327 1328 bad1: 1329 ehci_free_sqh(sc, sqh); 1330 bad0: 1331 return (USBD_NOMEM); 1332 } 1333 1334 /* 1335 * Add an ED to the schedule. Called at splusb(). 1336 */ 1337 void 1338 ehci_add_qh(ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) 1339 { 1340 SPLUSBCHECK; 1341 1342 sqh->next = head->next; 1343 sqh->qh.qh_link = head->qh.qh_link; 1344 head->next = sqh; 1345 head->qh.qh_link = htole32(sqh->physaddr | EHCI_LINK_QH); 1346 1347 #ifdef EHCI_DEBUG 1348 if (ehcidebug > 5) { 1349 printf("ehci_add_qh:\n"); 1350 ehci_dump_sqh(sqh); 1351 } 1352 #endif 1353 } 1354 1355 /* 1356 * Remove an ED from the schedule. Called at splusb(). 1357 */ 1358 void 1359 ehci_rem_qh(ehci_softc_t *sc, ehci_soft_qh_t *sqh, ehci_soft_qh_t *head) 1360 { 1361 ehci_soft_qh_t *p; 1362 1363 SPLUSBCHECK; 1364 /* XXX */ 1365 for (p = head; p != NULL && p->next != sqh; p = p->next) 1366 ; 1367 if (p == NULL) 1368 panic("ehci_rem_qh: ED not found"); 1369 p->next = sqh->next; 1370 p->qh.qh_link = sqh->qh.qh_link; 1371 1372 ehci_sync_hc(sc); 1373 } 1374 1375 void 1376 ehci_set_qh_qtd(ehci_soft_qh_t *sqh, ehci_soft_qtd_t *sqtd) 1377 { 1378 /* Halt while we are messing. */ 1379 sqh->qh.qh_qtd.qtd_status |= htole32(EHCI_QTD_HALTED); 1380 sqh->qh.qh_curqtd = 0; 1381 sqh->qh.qh_qtd.qtd_next = htole32(sqtd->physaddr); 1382 sqh->sqtd = sqtd; 1383 /* Clear halt */ 1384 sqh->qh.qh_qtd.qtd_status &= htole32(~EHCI_QTD_HALTED); 1385 } 1386 1387 /* 1388 * Ensure that the HC has released all references to the QH. We do this 1389 * by asking for a Async Advance Doorbell interrupt and then we wait for 1390 * the interrupt. 1391 * To make this easier we first obtain exclusive use of the doorbell. 1392 */ 1393 void 1394 ehci_sync_hc(ehci_softc_t *sc) 1395 { 1396 int s, error; 1397 1398 if (sc->sc_dying) { 1399 DPRINTFN(2,("ehci_sync_hc: dying\n")); 1400 return; 1401 } 1402 DPRINTFN(2,("ehci_sync_hc: enter\n")); 1403 usb_lockmgr(&sc->sc_doorbell_lock, LK_EXCLUSIVE, NULL); /* get doorbell */ 1404 s = splhardusb(); 1405 /* ask for doorbell */ 1406 EOWRITE4(sc, EHCI_USBCMD, EOREAD4(sc, EHCI_USBCMD) | EHCI_CMD_IAAD); 1407 DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", 1408 EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); 1409 error = tsleep(&sc->sc_async_head, PZERO, "ehcidi", hz); /* bell wait */ 1410 DPRINTFN(1,("ehci_sync_hc: cmd=0x%08x sts=0x%08x\n", 1411 EOREAD4(sc, EHCI_USBCMD), EOREAD4(sc, EHCI_USBSTS))); 1412 splx(s); 1413 usb_lockmgr(&sc->sc_doorbell_lock, LK_RELEASE, NULL); /* release doorbell */ 1414 #ifdef DIAGNOSTIC 1415 if (error) 1416 printf("ehci_sync_hc: tsleep() = %d\n", error); 1417 #endif 1418 DPRINTFN(2,("ehci_sync_hc: exit\n")); 1419 } 1420 1421 /***********/ 1422 1423 /* 1424 * Data structures and routines to emulate the root hub. 1425 */ 1426 Static usb_device_descriptor_t ehci_devd = { 1427 USB_DEVICE_DESCRIPTOR_SIZE, 1428 UDESC_DEVICE, /* type */ 1429 {0x00, 0x02}, /* USB version */ 1430 UDCLASS_HUB, /* class */ 1431 UDSUBCLASS_HUB, /* subclass */ 1432 UDPROTO_HSHUBSTT, /* protocol */ 1433 64, /* max packet */ 1434 {0},{0},{0x00,0x01}, /* device id */ 1435 1,2,0, /* string indicies */ 1436 1 /* # of configurations */ 1437 }; 1438 1439 Static usb_device_qualifier_t ehci_odevd = { 1440 USB_DEVICE_DESCRIPTOR_SIZE, 1441 UDESC_DEVICE_QUALIFIER, /* type */ 1442 {0x00, 0x02}, /* USB version */ 1443 UDCLASS_HUB, /* class */ 1444 UDSUBCLASS_HUB, /* subclass */ 1445 UDPROTO_FSHUB, /* protocol */ 1446 64, /* max packet */ 1447 1, /* # of configurations */ 1448 0 1449 }; 1450 1451 Static usb_config_descriptor_t ehci_confd = { 1452 USB_CONFIG_DESCRIPTOR_SIZE, 1453 UDESC_CONFIG, 1454 {USB_CONFIG_DESCRIPTOR_SIZE + 1455 USB_INTERFACE_DESCRIPTOR_SIZE + 1456 USB_ENDPOINT_DESCRIPTOR_SIZE}, 1457 1, 1458 1, 1459 0, 1460 UC_SELF_POWERED, 1461 0 /* max power */ 1462 }; 1463 1464 Static usb_interface_descriptor_t ehci_ifcd = { 1465 USB_INTERFACE_DESCRIPTOR_SIZE, 1466 UDESC_INTERFACE, 1467 0, 1468 0, 1469 1, 1470 UICLASS_HUB, 1471 UISUBCLASS_HUB, 1472 UIPROTO_HSHUBSTT, 1473 0 1474 }; 1475 1476 Static usb_endpoint_descriptor_t ehci_endpd = { 1477 USB_ENDPOINT_DESCRIPTOR_SIZE, 1478 UDESC_ENDPOINT, 1479 UE_DIR_IN | EHCI_INTR_ENDPT, 1480 UE_INTERRUPT, 1481 {8, 0}, /* max packet */ 1482 255 1483 }; 1484 1485 Static usb_hub_descriptor_t ehci_hubd = { 1486 USB_HUB_DESCRIPTOR_SIZE, 1487 UDESC_HUB, 1488 0, 1489 {0,0}, 1490 0, 1491 0, 1492 {0}, 1493 }; 1494 1495 Static int 1496 ehci_str(usb_string_descriptor_t *p, int l, char *s) 1497 { 1498 int i; 1499 1500 if (l == 0) 1501 return (0); 1502 p->bLength = 2 * strlen(s) + 2; 1503 if (l == 1) 1504 return (1); 1505 p->bDescriptorType = UDESC_STRING; 1506 l -= 2; 1507 for (i = 0; s[i] && l > 1; i++, l -= 2) 1508 USETW2(p->bString[i], 0, s[i]); 1509 return (2*i+2); 1510 } 1511 1512 /* 1513 * Simulate a hardware hub by handling all the necessary requests. 1514 */ 1515 Static usbd_status 1516 ehci_root_ctrl_transfer(usbd_xfer_handle xfer) 1517 { 1518 usbd_status err; 1519 1520 /* Insert last in queue. */ 1521 err = usb_insert_transfer(xfer); 1522 if (err) 1523 return (err); 1524 1525 /* Pipe isn't running, start first */ 1526 return (ehci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1527 } 1528 1529 Static usbd_status 1530 ehci_root_ctrl_start(usbd_xfer_handle xfer) 1531 { 1532 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 1533 usb_device_request_t *req; 1534 void *buf = NULL; 1535 int port, i; 1536 int s, len, value, index, l, totlen = 0; 1537 usb_port_status_t ps; 1538 usb_hub_descriptor_t hubd; 1539 usbd_status err; 1540 u_int32_t v; 1541 1542 if (sc->sc_dying) 1543 return (USBD_IOERROR); 1544 1545 #ifdef DIAGNOSTIC 1546 if (!(xfer->rqflags & URQ_REQUEST)) 1547 /* XXX panic */ 1548 return (USBD_INVAL); 1549 #endif 1550 req = &xfer->request; 1551 1552 DPRINTFN(4,("ehci_root_ctrl_start: type=0x%02x request=%02x\n", 1553 req->bmRequestType, req->bRequest)); 1554 1555 len = UGETW(req->wLength); 1556 value = UGETW(req->wValue); 1557 index = UGETW(req->wIndex); 1558 1559 if (len != 0) 1560 buf = KERNADDR(&xfer->dmabuf, 0); 1561 1562 #define C(x,y) ((x) | ((y) << 8)) 1563 switch(C(req->bRequest, req->bmRequestType)) { 1564 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 1565 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 1566 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 1567 /* 1568 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 1569 * for the integrated root hub. 1570 */ 1571 break; 1572 case C(UR_GET_CONFIG, UT_READ_DEVICE): 1573 if (len > 0) { 1574 *(u_int8_t *)buf = sc->sc_conf; 1575 totlen = 1; 1576 } 1577 break; 1578 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 1579 DPRINTFN(8,("ehci_root_ctrl_start: wValue=0x%04x\n", value)); 1580 switch(value >> 8) { 1581 case UDESC_DEVICE: 1582 if ((value & 0xff) != 0) { 1583 err = USBD_IOERROR; 1584 goto ret; 1585 } 1586 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1587 USETW(ehci_devd.idVendor, sc->sc_id_vendor); 1588 memcpy(buf, &ehci_devd, l); 1589 break; 1590 /* 1591 * We can't really operate at another speed, but the spec says 1592 * we need this descriptor. 1593 */ 1594 case UDESC_DEVICE_QUALIFIER: 1595 if ((value & 0xff) != 0) { 1596 err = USBD_IOERROR; 1597 goto ret; 1598 } 1599 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 1600 memcpy(buf, &ehci_odevd, l); 1601 break; 1602 /* 1603 * We can't really operate at another speed, but the spec says 1604 * we need this descriptor. 1605 */ 1606 case UDESC_OTHER_SPEED_CONFIGURATION: 1607 case UDESC_CONFIG: 1608 if ((value & 0xff) != 0) { 1609 err = USBD_IOERROR; 1610 goto ret; 1611 } 1612 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 1613 memcpy(buf, &ehci_confd, l); 1614 ((usb_config_descriptor_t *)buf)->bDescriptorType = 1615 value >> 8; 1616 buf = (char *)buf + l; 1617 len -= l; 1618 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 1619 totlen += l; 1620 memcpy(buf, &ehci_ifcd, l); 1621 buf = (char *)buf + l; 1622 len -= l; 1623 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 1624 totlen += l; 1625 memcpy(buf, &ehci_endpd, l); 1626 break; 1627 case UDESC_STRING: 1628 if (len == 0) 1629 break; 1630 *(u_int8_t *)buf = 0; 1631 totlen = 1; 1632 switch (value & 0xff) { 1633 case 1: /* Vendor */ 1634 totlen = ehci_str(buf, len, sc->sc_vendor); 1635 break; 1636 case 2: /* Product */ 1637 totlen = ehci_str(buf, len, "EHCI root hub"); 1638 break; 1639 } 1640 break; 1641 default: 1642 err = USBD_IOERROR; 1643 goto ret; 1644 } 1645 break; 1646 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 1647 if (len > 0) { 1648 *(u_int8_t *)buf = 0; 1649 totlen = 1; 1650 } 1651 break; 1652 case C(UR_GET_STATUS, UT_READ_DEVICE): 1653 if (len > 1) { 1654 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 1655 totlen = 2; 1656 } 1657 break; 1658 case C(UR_GET_STATUS, UT_READ_INTERFACE): 1659 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 1660 if (len > 1) { 1661 USETW(((usb_status_t *)buf)->wStatus, 0); 1662 totlen = 2; 1663 } 1664 break; 1665 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 1666 if (value >= USB_MAX_DEVICES) { 1667 err = USBD_IOERROR; 1668 goto ret; 1669 } 1670 sc->sc_addr = value; 1671 break; 1672 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 1673 if (value != 0 && value != 1) { 1674 err = USBD_IOERROR; 1675 goto ret; 1676 } 1677 sc->sc_conf = value; 1678 break; 1679 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 1680 break; 1681 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 1682 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 1683 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 1684 err = USBD_IOERROR; 1685 goto ret; 1686 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 1687 break; 1688 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 1689 break; 1690 /* Hub requests */ 1691 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 1692 break; 1693 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 1694 DPRINTFN(8, ("ehci_root_ctrl_start: UR_CLEAR_PORT_FEATURE " 1695 "port=%d feature=%d\n", 1696 index, value)); 1697 if (index < 1 || index > sc->sc_noport) { 1698 err = USBD_IOERROR; 1699 goto ret; 1700 } 1701 port = EHCI_PORTSC(index); 1702 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 1703 switch(value) { 1704 case UHF_PORT_ENABLE: 1705 EOWRITE4(sc, port, v &~ EHCI_PS_PE); 1706 break; 1707 case UHF_PORT_SUSPEND: 1708 EOWRITE4(sc, port, v &~ EHCI_PS_SUSP); 1709 break; 1710 case UHF_PORT_POWER: 1711 EOWRITE4(sc, port, v &~ EHCI_PS_PP); 1712 break; 1713 case UHF_PORT_TEST: 1714 DPRINTFN(2,("ehci_root_ctrl_start: clear port test " 1715 "%d\n", index)); 1716 break; 1717 case UHF_PORT_INDICATOR: 1718 DPRINTFN(2,("ehci_root_ctrl_start: clear port ind " 1719 "%d\n", index)); 1720 EOWRITE4(sc, port, v &~ EHCI_PS_PIC); 1721 break; 1722 case UHF_C_PORT_CONNECTION: 1723 EOWRITE4(sc, port, v | EHCI_PS_CSC); 1724 break; 1725 case UHF_C_PORT_ENABLE: 1726 EOWRITE4(sc, port, v | EHCI_PS_PEC); 1727 break; 1728 case UHF_C_PORT_SUSPEND: 1729 /* how? */ 1730 break; 1731 case UHF_C_PORT_OVER_CURRENT: 1732 EOWRITE4(sc, port, v | EHCI_PS_OCC); 1733 break; 1734 case UHF_C_PORT_RESET: 1735 sc->sc_isreset = 0; 1736 break; 1737 default: 1738 err = USBD_IOERROR; 1739 goto ret; 1740 } 1741 #if 0 1742 switch(value) { 1743 case UHF_C_PORT_CONNECTION: 1744 case UHF_C_PORT_ENABLE: 1745 case UHF_C_PORT_SUSPEND: 1746 case UHF_C_PORT_OVER_CURRENT: 1747 case UHF_C_PORT_RESET: 1748 /* Enable RHSC interrupt if condition is cleared. */ 1749 if ((OREAD4(sc, port) >> 16) == 0) 1750 ehci_pcd_able(sc, 1); 1751 break; 1752 default: 1753 break; 1754 } 1755 #endif 1756 break; 1757 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 1758 if ((value & 0xff) != 0) { 1759 err = USBD_IOERROR; 1760 goto ret; 1761 } 1762 hubd = ehci_hubd; 1763 hubd.bNbrPorts = sc->sc_noport; 1764 v = EOREAD4(sc, EHCI_HCSPARAMS); 1765 USETW(hubd.wHubCharacteristics, 1766 EHCI_HCS_PPC(v) ? UHD_PWR_INDIVIDUAL : UHD_PWR_NO_SWITCH | 1767 EHCI_HCS_P_INCICATOR(EREAD4(sc, EHCI_HCSPARAMS)) 1768 ? UHD_PORT_IND : 0); 1769 hubd.bPwrOn2PwrGood = 200; /* XXX can't find out? */ 1770 for (i = 0, l = sc->sc_noport; l > 0; i++, l -= 8, v >>= 8) 1771 hubd.DeviceRemovable[i++] = 0; /* XXX can't find out? */ 1772 hubd.bDescLength = USB_HUB_DESCRIPTOR_SIZE + i; 1773 l = min(len, hubd.bDescLength); 1774 totlen = l; 1775 memcpy(buf, &hubd, l); 1776 break; 1777 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 1778 if (len != 4) { 1779 err = USBD_IOERROR; 1780 goto ret; 1781 } 1782 memset(buf, 0, len); /* ? XXX */ 1783 totlen = len; 1784 break; 1785 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 1786 DPRINTFN(8,("ehci_root_ctrl_start: get port status i=%d\n", 1787 index)); 1788 if (index < 1 || index > sc->sc_noport) { 1789 err = USBD_IOERROR; 1790 goto ret; 1791 } 1792 if (len != 4) { 1793 err = USBD_IOERROR; 1794 goto ret; 1795 } 1796 v = EOREAD4(sc, EHCI_PORTSC(index)); 1797 DPRINTFN(8,("ehci_root_ctrl_start: port status=0x%04x\n", 1798 v)); 1799 i = UPS_HIGH_SPEED; 1800 if (v & EHCI_PS_CS) i |= UPS_CURRENT_CONNECT_STATUS; 1801 if (v & EHCI_PS_PE) i |= UPS_PORT_ENABLED; 1802 if (v & EHCI_PS_SUSP) i |= UPS_SUSPEND; 1803 if (v & EHCI_PS_OCA) i |= UPS_OVERCURRENT_INDICATOR; 1804 if (v & EHCI_PS_PR) i |= UPS_RESET; 1805 if (v & EHCI_PS_PP) i |= UPS_PORT_POWER; 1806 USETW(ps.wPortStatus, i); 1807 i = 0; 1808 if (v & EHCI_PS_CSC) i |= UPS_C_CONNECT_STATUS; 1809 if (v & EHCI_PS_PEC) i |= UPS_C_PORT_ENABLED; 1810 if (v & EHCI_PS_OCC) i |= UPS_C_OVERCURRENT_INDICATOR; 1811 if (sc->sc_isreset) i |= UPS_C_PORT_RESET; 1812 USETW(ps.wPortChange, i); 1813 l = min(len, sizeof ps); 1814 memcpy(buf, &ps, l); 1815 totlen = l; 1816 break; 1817 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 1818 err = USBD_IOERROR; 1819 goto ret; 1820 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 1821 break; 1822 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 1823 if (index < 1 || index > sc->sc_noport) { 1824 err = USBD_IOERROR; 1825 goto ret; 1826 } 1827 port = EHCI_PORTSC(index); 1828 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 1829 switch(value) { 1830 case UHF_PORT_ENABLE: 1831 EOWRITE4(sc, port, v | EHCI_PS_PE); 1832 break; 1833 case UHF_PORT_SUSPEND: 1834 EOWRITE4(sc, port, v | EHCI_PS_SUSP); 1835 break; 1836 case UHF_PORT_RESET: 1837 DPRINTFN(5,("ehci_root_ctrl_start: reset port %d\n", 1838 index)); 1839 if (EHCI_PS_IS_LOWSPEED(v)) { 1840 /* Low speed device, give up ownership. */ 1841 ehci_disown(sc, index, 1); 1842 break; 1843 } 1844 /* Start reset sequence. */ 1845 v &= ~ (EHCI_PS_PE | EHCI_PS_PR); 1846 EOWRITE4(sc, port, v | EHCI_PS_PR); 1847 /* Wait for reset to complete. */ 1848 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 1849 if (sc->sc_dying) { 1850 err = USBD_IOERROR; 1851 goto ret; 1852 } 1853 /* Terminate reset sequence. */ 1854 EOWRITE4(sc, port, v); 1855 /* Wait for HC to complete reset. */ 1856 usb_delay_ms(&sc->sc_bus, EHCI_PORT_RESET_COMPLETE); 1857 if (sc->sc_dying) { 1858 err = USBD_IOERROR; 1859 goto ret; 1860 } 1861 v = EOREAD4(sc, port); 1862 DPRINTF(("ehci after reset, status=0x%08x\n", v)); 1863 if (v & EHCI_PS_PR) { 1864 printf("%s: port reset timeout\n", 1865 USBDEVNAME(sc->sc_bus.bdev)); 1866 return (USBD_TIMEOUT); 1867 } 1868 if (!(v & EHCI_PS_PE)) { 1869 /* Not a high speed device, give up ownership.*/ 1870 ehci_disown(sc, index, 0); 1871 break; 1872 } 1873 sc->sc_isreset = 1; 1874 DPRINTF(("ehci port %d reset, status = 0x%08x\n", 1875 index, v)); 1876 break; 1877 case UHF_PORT_POWER: 1878 DPRINTFN(2,("ehci_root_ctrl_start: set port power " 1879 "%d\n", index)); 1880 EOWRITE4(sc, port, v | EHCI_PS_PP); 1881 break; 1882 case UHF_PORT_TEST: 1883 DPRINTFN(2,("ehci_root_ctrl_start: set port test " 1884 "%d\n", index)); 1885 break; 1886 case UHF_PORT_INDICATOR: 1887 DPRINTFN(2,("ehci_root_ctrl_start: set port ind " 1888 "%d\n", index)); 1889 EOWRITE4(sc, port, v | EHCI_PS_PIC); 1890 break; 1891 default: 1892 err = USBD_IOERROR; 1893 goto ret; 1894 } 1895 break; 1896 case C(UR_CLEAR_TT_BUFFER, UT_WRITE_CLASS_OTHER): 1897 case C(UR_RESET_TT, UT_WRITE_CLASS_OTHER): 1898 case C(UR_GET_TT_STATE, UT_READ_CLASS_OTHER): 1899 case C(UR_STOP_TT, UT_WRITE_CLASS_OTHER): 1900 break; 1901 default: 1902 err = USBD_IOERROR; 1903 goto ret; 1904 } 1905 xfer->actlen = totlen; 1906 err = USBD_NORMAL_COMPLETION; 1907 ret: 1908 xfer->status = err; 1909 s = splusb(); 1910 usb_transfer_complete(xfer); 1911 splx(s); 1912 return (USBD_IN_PROGRESS); 1913 } 1914 1915 void 1916 ehci_disown(ehci_softc_t *sc, int index, int lowspeed) 1917 { 1918 int port; 1919 u_int32_t v; 1920 1921 DPRINTF(("ehci_disown: index=%d lowspeed=%d\n", index, lowspeed)); 1922 #ifdef DIAGNOSTIC 1923 if (sc->sc_npcomp != 0) { 1924 int i = (index-1) / sc->sc_npcomp; 1925 if (i >= sc->sc_ncomp) 1926 printf("%s: strange port\n", 1927 USBDEVNAME(sc->sc_bus.bdev)); 1928 else 1929 printf("%s: handing over %s speed device on " 1930 "port %d to %s\n", 1931 USBDEVNAME(sc->sc_bus.bdev), 1932 lowspeed ? "low" : "full", 1933 index, USBDEVNAME(sc->sc_comps[i]->bdev)); 1934 } else { 1935 printf("%s: npcomp == 0\n", USBDEVNAME(sc->sc_bus.bdev)); 1936 } 1937 #endif 1938 port = EHCI_PORTSC(index); 1939 v = EOREAD4(sc, port) &~ EHCI_PS_CLEAR; 1940 EOWRITE4(sc, port, v | EHCI_PS_PO); 1941 } 1942 1943 /* Abort a root control request. */ 1944 Static void 1945 ehci_root_ctrl_abort(usbd_xfer_handle xfer) 1946 { 1947 /* Nothing to do, all transfers are synchronous. */ 1948 } 1949 1950 /* Close the root pipe. */ 1951 Static void 1952 ehci_root_ctrl_close(usbd_pipe_handle pipe) 1953 { 1954 DPRINTF(("ehci_root_ctrl_close\n")); 1955 /* Nothing to do. */ 1956 } 1957 1958 void 1959 ehci_root_intr_done(usbd_xfer_handle xfer) 1960 { 1961 } 1962 1963 Static usbd_status 1964 ehci_root_intr_transfer(usbd_xfer_handle xfer) 1965 { 1966 usbd_status err; 1967 1968 /* Insert last in queue. */ 1969 err = usb_insert_transfer(xfer); 1970 if (err) 1971 return (err); 1972 1973 /* Pipe isn't running, start first */ 1974 return (ehci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1975 } 1976 1977 Static usbd_status 1978 ehci_root_intr_start(usbd_xfer_handle xfer) 1979 { 1980 usbd_pipe_handle pipe = xfer->pipe; 1981 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 1982 1983 if (sc->sc_dying) 1984 return (USBD_IOERROR); 1985 1986 sc->sc_intrxfer = xfer; 1987 1988 return (USBD_IN_PROGRESS); 1989 } 1990 1991 /* Abort a root interrupt request. */ 1992 Static void 1993 ehci_root_intr_abort(usbd_xfer_handle xfer) 1994 { 1995 int s; 1996 1997 if (xfer->pipe->intrxfer == xfer) { 1998 DPRINTF(("ehci_root_intr_abort: remove\n")); 1999 xfer->pipe->intrxfer = NULL; 2000 } 2001 xfer->status = USBD_CANCELLED; 2002 s = splusb(); 2003 usb_transfer_complete(xfer); 2004 splx(s); 2005 } 2006 2007 /* Close the root pipe. */ 2008 Static void 2009 ehci_root_intr_close(usbd_pipe_handle pipe) 2010 { 2011 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2012 2013 DPRINTF(("ehci_root_intr_close\n")); 2014 2015 sc->sc_intrxfer = NULL; 2016 } 2017 2018 void 2019 ehci_root_ctrl_done(usbd_xfer_handle xfer) 2020 { 2021 } 2022 2023 /************************/ 2024 2025 ehci_soft_qh_t * 2026 ehci_alloc_sqh(ehci_softc_t *sc) 2027 { 2028 ehci_soft_qh_t *sqh; 2029 usbd_status err; 2030 int i, offs; 2031 usb_dma_t dma; 2032 2033 if (sc->sc_freeqhs == NULL) { 2034 DPRINTFN(2, ("ehci_alloc_sqh: allocating chunk\n")); 2035 err = usb_allocmem(&sc->sc_bus, EHCI_SQH_SIZE * EHCI_SQH_CHUNK, 2036 EHCI_PAGE_SIZE, &dma); 2037 #ifdef EHCI_DEBUG 2038 if (err) 2039 printf("ehci_alloc_sqh: usb_allocmem()=%d\n", err); 2040 #endif 2041 if (err) 2042 return (NULL); 2043 for(i = 0; i < EHCI_SQH_CHUNK; i++) { 2044 offs = i * EHCI_SQH_SIZE; 2045 sqh = KERNADDR(&dma, offs); 2046 sqh->physaddr = DMAADDR(&dma, offs); 2047 sqh->next = sc->sc_freeqhs; 2048 sc->sc_freeqhs = sqh; 2049 } 2050 } 2051 sqh = sc->sc_freeqhs; 2052 sc->sc_freeqhs = sqh->next; 2053 memset(&sqh->qh, 0, sizeof(ehci_qh_t)); 2054 sqh->next = NULL; 2055 return (sqh); 2056 } 2057 2058 void 2059 ehci_free_sqh(ehci_softc_t *sc, ehci_soft_qh_t *sqh) 2060 { 2061 sqh->next = sc->sc_freeqhs; 2062 sc->sc_freeqhs = sqh; 2063 } 2064 2065 ehci_soft_qtd_t * 2066 ehci_alloc_sqtd(ehci_softc_t *sc) 2067 { 2068 ehci_soft_qtd_t *sqtd; 2069 usbd_status err; 2070 int i, offs; 2071 usb_dma_t dma; 2072 int s; 2073 2074 if (sc->sc_freeqtds == NULL) { 2075 DPRINTFN(2, ("ehci_alloc_sqtd: allocating chunk\n")); 2076 err = usb_allocmem(&sc->sc_bus, EHCI_SQTD_SIZE*EHCI_SQTD_CHUNK, 2077 EHCI_PAGE_SIZE, &dma); 2078 #ifdef EHCI_DEBUG 2079 if (err) 2080 printf("ehci_alloc_sqtd: usb_allocmem()=%d\n", err); 2081 #endif 2082 if (err) 2083 return (NULL); 2084 s = splusb(); 2085 for(i = 0; i < EHCI_SQTD_CHUNK; i++) { 2086 offs = i * EHCI_SQTD_SIZE; 2087 sqtd = KERNADDR(&dma, offs); 2088 sqtd->physaddr = DMAADDR(&dma, offs); 2089 sqtd->nextqtd = sc->sc_freeqtds; 2090 sc->sc_freeqtds = sqtd; 2091 } 2092 splx(s); 2093 } 2094 2095 s = splusb(); 2096 sqtd = sc->sc_freeqtds; 2097 sc->sc_freeqtds = sqtd->nextqtd; 2098 memset(&sqtd->qtd, 0, sizeof(ehci_qtd_t)); 2099 sqtd->nextqtd = NULL; 2100 sqtd->xfer = NULL; 2101 splx(s); 2102 2103 return (sqtd); 2104 } 2105 2106 void 2107 ehci_free_sqtd(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd) 2108 { 2109 int s; 2110 2111 s = splusb(); 2112 sqtd->nextqtd = sc->sc_freeqtds; 2113 sc->sc_freeqtds = sqtd; 2114 splx(s); 2115 } 2116 2117 usbd_status 2118 ehci_alloc_sqtd_chain(struct ehci_pipe *epipe, ehci_softc_t *sc, 2119 int alen, int rd, usbd_xfer_handle xfer, 2120 ehci_soft_qtd_t **sp, ehci_soft_qtd_t **ep) 2121 { 2122 ehci_soft_qtd_t *next, *cur; 2123 ehci_physaddr_t dataphys, dataphyspage, dataphyslastpage, nextphys; 2124 u_int32_t qtdstatus; 2125 int len, curlen, mps; 2126 int i, tog; 2127 usb_dma_t *dma = &xfer->dmabuf; 2128 2129 DPRINTFN(alen<4*4096,("ehci_alloc_sqtd_chain: start len=%d\n", alen)); 2130 2131 len = alen; 2132 dataphys = DMAADDR(dma, 0); 2133 dataphyslastpage = EHCI_PAGE(dataphys + len - 1); 2134 #if 0 2135 printf("status=%08x toggle=%d\n", epipe->sqh->qh.qh_qtd.qtd_status, 2136 epipe->nexttoggle); 2137 #endif 2138 qtdstatus = EHCI_QTD_ACTIVE | 2139 EHCI_QTD_SET_PID(rd ? EHCI_QTD_PID_IN : EHCI_QTD_PID_OUT) | 2140 EHCI_QTD_SET_CERR(3) 2141 /* IOC set below */ 2142 /* BYTES set below */ 2143 ; 2144 mps = UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize); 2145 tog = epipe->nexttoggle; 2146 qtdstatus |= EHCI_QTD_SET_TOGGLE(tog); 2147 2148 cur = ehci_alloc_sqtd(sc); 2149 *sp = cur; 2150 if (cur == NULL) 2151 goto nomem; 2152 for (;;) { 2153 dataphyspage = EHCI_PAGE(dataphys); 2154 /* The EHCI hardware can handle at most 5 pages. */ 2155 if (dataphyslastpage - dataphyspage < 2156 EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE) { 2157 /* we can handle it in this QTD */ 2158 curlen = len; 2159 } else { 2160 /* must use multiple TDs, fill as much as possible. */ 2161 curlen = EHCI_QTD_NBUFFERS * EHCI_PAGE_SIZE - 2162 EHCI_PAGE_OFFSET(dataphys); 2163 #ifdef DIAGNOSTIC 2164 if (curlen > len) { 2165 printf("ehci_alloc_sqtd_chain: curlen=0x%x " 2166 "len=0x%x offs=0x%x\n", curlen, len, 2167 EHCI_PAGE_OFFSET(dataphys)); 2168 printf("lastpage=0x%x page=0x%x phys=0x%x\n", 2169 dataphyslastpage, dataphyspage, 2170 dataphys); 2171 curlen = len; 2172 } 2173 #endif 2174 /* the length must be a multiple of the max size */ 2175 curlen -= curlen % mps; 2176 DPRINTFN(1,("ehci_alloc_sqtd_chain: multiple QTDs, " 2177 "curlen=%d\n", curlen)); 2178 #ifdef DIAGNOSTIC 2179 if (curlen == 0) 2180 panic("ehci_alloc_std: curlen == 0"); 2181 #endif 2182 } 2183 DPRINTFN(4,("ehci_alloc_sqtd_chain: dataphys=0x%08x " 2184 "dataphyslastpage=0x%08x len=%d curlen=%d\n", 2185 dataphys, dataphyslastpage, 2186 len, curlen)); 2187 len -= curlen; 2188 2189 if (len != 0) { 2190 next = ehci_alloc_sqtd(sc); 2191 if (next == NULL) 2192 goto nomem; 2193 nextphys = htole32(next->physaddr); 2194 } else { 2195 next = NULL; 2196 nextphys = EHCI_NULL; 2197 } 2198 2199 for (i = 0; i * EHCI_PAGE_SIZE < curlen; i++) { 2200 ehci_physaddr_t a = dataphys + i * EHCI_PAGE_SIZE; 2201 if (i != 0) /* use offset only in first buffer */ 2202 a = EHCI_PAGE(a); 2203 cur->qtd.qtd_buffer[i] = htole32(a); 2204 cur->qtd.qtd_buffer_hi[i] = 0; 2205 #ifdef DIAGNOSTIC 2206 if (i >= EHCI_QTD_NBUFFERS) { 2207 printf("ehci_alloc_sqtd_chain: i=%d\n", i); 2208 goto nomem; 2209 } 2210 #endif 2211 } 2212 cur->nextqtd = next; 2213 cur->qtd.qtd_next = cur->qtd.qtd_altnext = nextphys; 2214 cur->qtd.qtd_status = 2215 htole32(qtdstatus | EHCI_QTD_SET_BYTES(curlen)); 2216 cur->xfer = xfer; 2217 cur->len = curlen; 2218 DPRINTFN(10,("ehci_alloc_sqtd_chain: cbp=0x%08x end=0x%08x\n", 2219 dataphys, dataphys + curlen)); 2220 /* adjust the toggle based on the number of packets in this 2221 qtd */ 2222 if (((curlen + mps - 1) / mps) & 1) { 2223 tog ^= 1; 2224 qtdstatus ^= EHCI_QTD_TOGGLE_MASK; 2225 } 2226 if (len == 0) 2227 break; 2228 DPRINTFN(10,("ehci_alloc_sqtd_chain: extend chain\n")); 2229 dataphys += curlen; 2230 cur = next; 2231 } 2232 cur->qtd.qtd_status |= htole32(EHCI_QTD_IOC); 2233 *ep = cur; 2234 epipe->nexttoggle = tog; 2235 2236 DPRINTFN(10,("ehci_alloc_sqtd_chain: return sqtd=%p sqtdend=%p\n", 2237 *sp, *ep)); 2238 2239 return (USBD_NORMAL_COMPLETION); 2240 2241 nomem: 2242 /* XXX free chain */ 2243 DPRINTFN(-1,("ehci_alloc_sqtd_chain: no memory\n")); 2244 return (USBD_NOMEM); 2245 } 2246 2247 Static void 2248 ehci_free_sqtd_chain(ehci_softc_t *sc, ehci_soft_qtd_t *sqtd, 2249 ehci_soft_qtd_t *sqtdend) 2250 { 2251 ehci_soft_qtd_t *p; 2252 int i; 2253 2254 DPRINTFN(10,("ehci_free_sqtd_chain: sqtd=%p sqtdend=%p\n", 2255 sqtd, sqtdend)); 2256 2257 for (i = 0; sqtd != sqtdend; sqtd = p, i++) { 2258 p = sqtd->nextqtd; 2259 ehci_free_sqtd(sc, sqtd); 2260 } 2261 } 2262 2263 /****************/ 2264 2265 /* 2266 * Close a reqular pipe. 2267 * Assumes that there are no pending transactions. 2268 */ 2269 void 2270 ehci_close_pipe(usbd_pipe_handle pipe, ehci_soft_qh_t *head) 2271 { 2272 struct ehci_pipe *epipe = (struct ehci_pipe *)pipe; 2273 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2274 ehci_soft_qh_t *sqh = epipe->sqh; 2275 int s; 2276 2277 s = splusb(); 2278 ehci_rem_qh(sc, sqh, head); 2279 splx(s); 2280 ehci_free_sqh(sc, epipe->sqh); 2281 } 2282 2283 /* 2284 * Abort a device request. 2285 * If this routine is called at splusb() it guarantees that the request 2286 * will be removed from the hardware scheduling and that the callback 2287 * for it will be called with USBD_CANCELLED status. 2288 * It's impossible to guarantee that the requested transfer will not 2289 * have happened since the hardware runs concurrently. 2290 * If the transaction has already happened we rely on the ordinary 2291 * interrupt processing to process it. 2292 * XXX This is most probably wrong. 2293 */ 2294 void 2295 ehci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 2296 { 2297 #define exfer EXFER(xfer) 2298 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2299 ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; 2300 ehci_soft_qh_t *sqh = epipe->sqh; 2301 ehci_soft_qtd_t *sqtd; 2302 ehci_physaddr_t cur; 2303 u_int32_t qhstatus; 2304 int s; 2305 int hit; 2306 2307 DPRINTF(("ehci_abort_xfer: xfer=%p pipe=%p\n", xfer, epipe)); 2308 2309 if (sc->sc_dying) { 2310 /* If we're dying, just do the software part. */ 2311 s = splusb(); 2312 xfer->status = status; /* make software ignore it */ 2313 usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); 2314 usb_transfer_complete(xfer); 2315 splx(s); 2316 return; 2317 } 2318 2319 if (xfer->device->bus->intr_context || !curproc) 2320 panic("ehci_abort_xfer: not in process context"); 2321 2322 /* 2323 * Step 1: Make interrupt routine and hardware ignore xfer. 2324 */ 2325 s = splusb(); 2326 xfer->status = status; /* make software ignore it */ 2327 usb_uncallout(xfer->timeout_handle, ehci_timeout, xfer); 2328 qhstatus = sqh->qh.qh_qtd.qtd_status; 2329 sqh->qh.qh_qtd.qtd_status = qhstatus | htole32(EHCI_QTD_HALTED); 2330 for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) { 2331 sqtd->qtd.qtd_status |= htole32(EHCI_QTD_HALTED); 2332 if (sqtd == exfer->sqtdend) 2333 break; 2334 } 2335 splx(s); 2336 2337 /* 2338 * Step 2: Wait until we know hardware has finished any possible 2339 * use of the xfer. Also make sure the soft interrupt routine 2340 * has run. 2341 */ 2342 ehci_sync_hc(sc); 2343 s = splusb(); 2344 sc->sc_softwake = 1; 2345 usb_schedsoftintr(&sc->sc_bus); 2346 tsleep(&sc->sc_softwake, PZERO, "ehciab", 0); 2347 splx(s); 2348 2349 /* 2350 * Step 3: Remove any vestiges of the xfer from the hardware. 2351 * The complication here is that the hardware may have executed 2352 * beyond the xfer we're trying to abort. So as we're scanning 2353 * the TDs of this xfer we check if the hardware points to 2354 * any of them. 2355 */ 2356 s = splusb(); /* XXX why? */ 2357 cur = EHCI_LINK_ADDR(le32toh(sqh->qh.qh_curqtd)); 2358 hit = 0; 2359 for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) { 2360 hit |= cur == sqtd->physaddr; 2361 if (sqtd == exfer->sqtdend) 2362 break; 2363 } 2364 sqtd = sqtd->nextqtd; 2365 /* Zap curqtd register if hardware pointed inside the xfer. */ 2366 if (hit && sqtd != NULL) { 2367 DPRINTFN(1,("ehci_abort_xfer: cur=0x%08x\n", sqtd->physaddr)); 2368 sqh->qh.qh_curqtd = htole32(sqtd->physaddr); /* unlink qTDs */ 2369 sqh->qh.qh_qtd.qtd_status = qhstatus; 2370 } else { 2371 DPRINTFN(1,("ehci_abort_xfer: no hit\n")); 2372 } 2373 2374 /* 2375 * Step 4: Execute callback. 2376 */ 2377 #ifdef DIAGNOSTIC 2378 exfer->isdone = 1; 2379 #endif 2380 usb_transfer_complete(xfer); 2381 2382 splx(s); 2383 #undef exfer 2384 } 2385 2386 void 2387 ehci_timeout(void *addr) 2388 { 2389 struct ehci_xfer *exfer = addr; 2390 struct ehci_pipe *epipe = (struct ehci_pipe *)exfer->xfer.pipe; 2391 ehci_softc_t *sc = (ehci_softc_t *)epipe->pipe.device->bus; 2392 2393 DPRINTF(("ehci_timeout: exfer=%p\n", exfer)); 2394 #ifdef USB_DEBUG 2395 if (ehcidebug > 1) 2396 usbd_dump_pipe(exfer->xfer.pipe); 2397 #endif 2398 2399 if (sc->sc_dying) { 2400 ehci_abort_xfer(&exfer->xfer, USBD_TIMEOUT); 2401 return; 2402 } 2403 2404 /* Execute the abort in a process context. */ 2405 usb_init_task(&exfer->abort_task, ehci_timeout_task, addr); 2406 usb_add_task(exfer->xfer.pipe->device, &exfer->abort_task); 2407 } 2408 2409 void 2410 ehci_timeout_task(void *addr) 2411 { 2412 usbd_xfer_handle xfer = addr; 2413 int s; 2414 2415 DPRINTF(("ehci_timeout_task: xfer=%p\n", xfer)); 2416 2417 s = splusb(); 2418 ehci_abort_xfer(xfer, USBD_TIMEOUT); 2419 splx(s); 2420 } 2421 2422 /************************/ 2423 2424 Static usbd_status 2425 ehci_device_ctrl_transfer(usbd_xfer_handle xfer) 2426 { 2427 usbd_status err; 2428 2429 /* Insert last in queue. */ 2430 err = usb_insert_transfer(xfer); 2431 if (err) 2432 return (err); 2433 2434 /* Pipe isn't running, start first */ 2435 return (ehci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2436 } 2437 2438 Static usbd_status 2439 ehci_device_ctrl_start(usbd_xfer_handle xfer) 2440 { 2441 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2442 usbd_status err; 2443 2444 if (sc->sc_dying) 2445 return (USBD_IOERROR); 2446 2447 #ifdef DIAGNOSTIC 2448 if (!(xfer->rqflags & URQ_REQUEST)) { 2449 /* XXX panic */ 2450 printf("ehci_device_ctrl_transfer: not a request\n"); 2451 return (USBD_INVAL); 2452 } 2453 #endif 2454 2455 err = ehci_device_request(xfer); 2456 if (err) 2457 return (err); 2458 2459 if (sc->sc_bus.use_polling) 2460 ehci_waitintr(sc, xfer); 2461 return (USBD_IN_PROGRESS); 2462 } 2463 2464 void 2465 ehci_device_ctrl_done(usbd_xfer_handle xfer) 2466 { 2467 struct ehci_xfer *ex = EXFER(xfer); 2468 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2469 /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ 2470 2471 DPRINTFN(10,("ehci_ctrl_done: xfer=%p\n", xfer)); 2472 2473 #ifdef DIAGNOSTIC 2474 if (!(xfer->rqflags & URQ_REQUEST)) { 2475 panic("ehci_ctrl_done: not a request"); 2476 } 2477 #endif 2478 2479 if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { 2480 ehci_del_intr_list(ex); /* remove from active list */ 2481 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 2482 } 2483 2484 DPRINTFN(5, ("ehci_ctrl_done: length=%d\n", xfer->actlen)); 2485 } 2486 2487 /* Abort a device control request. */ 2488 Static void 2489 ehci_device_ctrl_abort(usbd_xfer_handle xfer) 2490 { 2491 DPRINTF(("ehci_device_ctrl_abort: xfer=%p\n", xfer)); 2492 ehci_abort_xfer(xfer, USBD_CANCELLED); 2493 } 2494 2495 /* Close a device control pipe. */ 2496 Static void 2497 ehci_device_ctrl_close(usbd_pipe_handle pipe) 2498 { 2499 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2500 /*struct ehci_pipe *epipe = (struct ehci_pipe *)pipe;*/ 2501 2502 DPRINTF(("ehci_device_ctrl_close: pipe=%p\n", pipe)); 2503 ehci_close_pipe(pipe, sc->sc_async_head); 2504 } 2505 2506 usbd_status 2507 ehci_device_request(usbd_xfer_handle xfer) 2508 { 2509 #define exfer EXFER(xfer) 2510 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2511 usb_device_request_t *req = &xfer->request; 2512 usbd_device_handle dev = epipe->pipe.device; 2513 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 2514 int addr = dev->address; 2515 ehci_soft_qtd_t *setup, *stat, *next; 2516 ehci_soft_qh_t *sqh; 2517 int isread; 2518 int len; 2519 usbd_status err; 2520 int s; 2521 2522 isread = req->bmRequestType & UT_READ; 2523 len = UGETW(req->wLength); 2524 2525 DPRINTFN(3,("ehci_device_request: type=0x%02x, request=0x%02x, " 2526 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2527 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2528 UGETW(req->wIndex), len, addr, 2529 epipe->pipe.endpoint->edesc->bEndpointAddress)); 2530 2531 setup = ehci_alloc_sqtd(sc); 2532 if (setup == NULL) { 2533 err = USBD_NOMEM; 2534 goto bad1; 2535 } 2536 stat = ehci_alloc_sqtd(sc); 2537 if (stat == NULL) { 2538 err = USBD_NOMEM; 2539 goto bad2; 2540 } 2541 2542 sqh = epipe->sqh; 2543 epipe->u.ctl.length = len; 2544 2545 /* Update device address and length since they may have changed 2546 during the setup of the control pipe in usbd_new_device(). */ 2547 /* XXX This only needs to be done once, but it's too early in open. */ 2548 /* XXXX Should not touch ED here! */ 2549 sqh->qh.qh_endp = 2550 (sqh->qh.qh_endp & htole32(~(EHCI_QH_ADDRMASK | EHCI_QH_MPLMASK))) | 2551 htole32( 2552 EHCI_QH_SET_ADDR(addr) | 2553 EHCI_QH_SET_MPL(UGETW(epipe->pipe.endpoint->edesc->wMaxPacketSize)) 2554 ); 2555 2556 /* Set up data transaction */ 2557 if (len != 0) { 2558 ehci_soft_qtd_t *end; 2559 2560 /* Start toggle at 1. */ 2561 epipe->nexttoggle = 1; 2562 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, 2563 &next, &end); 2564 if (err) 2565 goto bad3; 2566 end->nextqtd = stat; 2567 end->qtd.qtd_next = 2568 end->qtd.qtd_altnext = htole32(stat->physaddr); 2569 } else { 2570 next = stat; 2571 } 2572 2573 memcpy(KERNADDR(&epipe->u.ctl.reqdma, 0), req, sizeof *req); 2574 2575 /* Clear toggle */ 2576 setup->qtd.qtd_status = htole32( 2577 EHCI_QTD_ACTIVE | 2578 EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) | 2579 EHCI_QTD_SET_CERR(3) | 2580 EHCI_QTD_SET_TOGGLE(0) | 2581 EHCI_QTD_SET_BYTES(sizeof *req) 2582 ); 2583 setup->qtd.qtd_buffer[0] = htole32(DMAADDR(&epipe->u.ctl.reqdma, 0)); 2584 setup->qtd.qtd_buffer_hi[0] = 0; 2585 setup->nextqtd = next; 2586 setup->qtd.qtd_next = setup->qtd.qtd_altnext = htole32(next->physaddr); 2587 setup->xfer = xfer; 2588 setup->len = sizeof *req; 2589 2590 stat->qtd.qtd_status = htole32( 2591 EHCI_QTD_ACTIVE | 2592 EHCI_QTD_SET_PID(isread ? EHCI_QTD_PID_OUT : EHCI_QTD_PID_IN) | 2593 EHCI_QTD_SET_CERR(3) | 2594 EHCI_QTD_SET_TOGGLE(1) | 2595 EHCI_QTD_IOC 2596 ); 2597 stat->qtd.qtd_buffer[0] = 0; /* XXX not needed? */ 2598 stat->qtd.qtd_buffer_hi[0] = 0; /* XXX not needed? */ 2599 stat->nextqtd = NULL; 2600 stat->qtd.qtd_next = stat->qtd.qtd_altnext = EHCI_NULL; 2601 stat->xfer = xfer; 2602 stat->len = 0; 2603 2604 #ifdef EHCI_DEBUG 2605 if (ehcidebug > 5) { 2606 DPRINTF(("ehci_device_request:\n")); 2607 ehci_dump_sqh(sqh); 2608 ehci_dump_sqtds(setup); 2609 } 2610 #endif 2611 2612 exfer->sqtdstart = setup; 2613 exfer->sqtdend = stat; 2614 #ifdef DIAGNOSTIC 2615 if (!exfer->isdone) { 2616 printf("ehci_device_request: not done, exfer=%p\n", exfer); 2617 } 2618 exfer->isdone = 0; 2619 #endif 2620 2621 /* Insert qTD in QH list. */ 2622 s = splusb(); 2623 ehci_set_qh_qtd(sqh, setup); 2624 if (xfer->timeout && !sc->sc_bus.use_polling) { 2625 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2626 ehci_timeout, xfer); 2627 } 2628 ehci_add_intr_list(sc, exfer); 2629 xfer->status = USBD_IN_PROGRESS; 2630 splx(s); 2631 2632 #ifdef EHCI_DEBUG 2633 if (ehcidebug > 10) { 2634 DPRINTF(("ehci_device_request: status=%x\n", 2635 EOREAD4(sc, EHCI_USBSTS))); 2636 delay(10000); 2637 ehci_dump_regs(sc); 2638 ehci_dump_sqh(sc->sc_async_head); 2639 ehci_dump_sqh(sqh); 2640 ehci_dump_sqtds(setup); 2641 } 2642 #endif 2643 2644 return (USBD_NORMAL_COMPLETION); 2645 2646 bad3: 2647 ehci_free_sqtd(sc, stat); 2648 bad2: 2649 ehci_free_sqtd(sc, setup); 2650 bad1: 2651 DPRINTFN(-1,("ehci_device_request: no memory\n")); 2652 xfer->status = err; 2653 usb_transfer_complete(xfer); 2654 return (err); 2655 #undef exfer 2656 } 2657 2658 /************************/ 2659 2660 Static usbd_status 2661 ehci_device_bulk_transfer(usbd_xfer_handle xfer) 2662 { 2663 usbd_status err; 2664 2665 /* Insert last in queue. */ 2666 err = usb_insert_transfer(xfer); 2667 if (err) 2668 return (err); 2669 2670 /* Pipe isn't running, start first */ 2671 return (ehci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2672 } 2673 2674 usbd_status 2675 ehci_device_bulk_start(usbd_xfer_handle xfer) 2676 { 2677 #define exfer EXFER(xfer) 2678 struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe; 2679 usbd_device_handle dev = epipe->pipe.device; 2680 ehci_softc_t *sc = (ehci_softc_t *)dev->bus; 2681 ehci_soft_qtd_t *data, *dataend; 2682 ehci_soft_qh_t *sqh; 2683 usbd_status err; 2684 int len, isread, endpt; 2685 int s; 2686 2687 DPRINTFN(2, ("ehci_device_bulk_start: xfer=%p len=%d flags=%d\n", 2688 xfer, xfer->length, xfer->flags)); 2689 2690 if (sc->sc_dying) 2691 return (USBD_IOERROR); 2692 2693 #ifdef DIAGNOSTIC 2694 if (xfer->rqflags & URQ_REQUEST) 2695 panic("ehci_device_bulk_start: a request"); 2696 #endif 2697 2698 len = xfer->length; 2699 endpt = epipe->pipe.endpoint->edesc->bEndpointAddress; 2700 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 2701 sqh = epipe->sqh; 2702 2703 epipe->u.bulk.length = len; 2704 2705 err = ehci_alloc_sqtd_chain(epipe, sc, len, isread, xfer, &data, 2706 &dataend); 2707 if (err) { 2708 DPRINTFN(-1,("ehci_device_bulk_transfer: no memory\n")); 2709 xfer->status = err; 2710 usb_transfer_complete(xfer); 2711 return (err); 2712 } 2713 2714 #ifdef EHCI_DEBUG 2715 if (ehcidebug > 5) { 2716 DPRINTF(("ehci_device_bulk_start: data(1)\n")); 2717 ehci_dump_sqh(sqh); 2718 ehci_dump_sqtds(data); 2719 } 2720 #endif 2721 2722 /* Set up interrupt info. */ 2723 exfer->sqtdstart = data; 2724 exfer->sqtdend = dataend; 2725 #ifdef DIAGNOSTIC 2726 if (!exfer->isdone) { 2727 printf("ehci_device_bulk_start: not done, ex=%p\n", exfer); 2728 } 2729 exfer->isdone = 0; 2730 #endif 2731 2732 s = splusb(); 2733 ehci_set_qh_qtd(sqh, data); 2734 if (xfer->timeout && !sc->sc_bus.use_polling) { 2735 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2736 ehci_timeout, xfer); 2737 } 2738 ehci_add_intr_list(sc, exfer); 2739 xfer->status = USBD_IN_PROGRESS; 2740 splx(s); 2741 2742 #ifdef EHCI_DEBUG 2743 if (ehcidebug > 10) { 2744 DPRINTF(("ehci_device_bulk_start: data(2)\n")); 2745 delay(10000); 2746 DPRINTF(("ehci_device_bulk_start: data(3)\n")); 2747 ehci_dump_regs(sc); 2748 #if 0 2749 printf("async_head:\n"); 2750 ehci_dump_sqh(sc->sc_async_head); 2751 #endif 2752 printf("sqh:\n"); 2753 ehci_dump_sqh(sqh); 2754 ehci_dump_sqtds(data); 2755 } 2756 #endif 2757 2758 if (sc->sc_bus.use_polling) 2759 ehci_waitintr(sc, xfer); 2760 2761 return (USBD_IN_PROGRESS); 2762 #undef exfer 2763 } 2764 2765 Static void 2766 ehci_device_bulk_abort(usbd_xfer_handle xfer) 2767 { 2768 DPRINTF(("ehci_device_bulk_abort: xfer=%p\n", xfer)); 2769 ehci_abort_xfer(xfer, USBD_CANCELLED); 2770 } 2771 2772 /* 2773 * Close a device bulk pipe. 2774 */ 2775 Static void 2776 ehci_device_bulk_close(usbd_pipe_handle pipe) 2777 { 2778 ehci_softc_t *sc = (ehci_softc_t *)pipe->device->bus; 2779 2780 DPRINTF(("ehci_device_bulk_close: pipe=%p\n", pipe)); 2781 ehci_close_pipe(pipe, sc->sc_async_head); 2782 } 2783 2784 void 2785 ehci_device_bulk_done(usbd_xfer_handle xfer) 2786 { 2787 struct ehci_xfer *ex = EXFER(xfer); 2788 ehci_softc_t *sc = (ehci_softc_t *)xfer->pipe->device->bus; 2789 /*struct ehci_pipe *epipe = (struct ehci_pipe *)xfer->pipe;*/ 2790 2791 DPRINTFN(10,("ehci_bulk_done: xfer=%p, actlen=%d\n", 2792 xfer, xfer->actlen)); 2793 2794 if (xfer->status != USBD_NOMEM && ehci_active_intr_list(ex)) { 2795 ehci_del_intr_list(ex); /* remove from active list */ 2796 ehci_free_sqtd_chain(sc, ex->sqtdstart, NULL); 2797 } 2798 2799 DPRINTFN(5, ("ehci_bulk_done: length=%d\n", xfer->actlen)); 2800 } 2801 2802 /************************/ 2803 2804 Static usbd_status ehci_device_intr_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 2805 Static usbd_status ehci_device_intr_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 2806 Static void ehci_device_intr_abort(usbd_xfer_handle xfer) { } 2807 Static void ehci_device_intr_close(usbd_pipe_handle pipe) { } 2808 Static void ehci_device_intr_done(usbd_xfer_handle xfer) { } 2809 2810 /************************/ 2811 2812 Static usbd_status ehci_device_isoc_transfer(usbd_xfer_handle xfer) { return USBD_IOERROR; } 2813 Static usbd_status ehci_device_isoc_start(usbd_xfer_handle xfer) { return USBD_IOERROR; } 2814 Static void ehci_device_isoc_abort(usbd_xfer_handle xfer) { } 2815 Static void ehci_device_isoc_close(usbd_pipe_handle pipe) { } 2816 Static void ehci_device_isoc_done(usbd_xfer_handle xfer) { } 2817
Indexes created Tue Sep 23 22:09:46 GMT 2025