uhci.c revision 1.53
1 /* $NetBSD: uhci.c,v 1.53 1999/09/15 10:25:31 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 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 (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * USB Universal Host Controller driver. 42 * Handles e.g. PIIX3 and PIIX4. 43 * 44 * Data sheets: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 45 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 46 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 47 * USB spec: http://www.usb.org/developers/data/usb11.pdf 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/malloc.h> 54 #if defined(__NetBSD__) || defined(__OpenBSD__) 55 #include <sys/device.h> 56 #elif defined(__FreeBSD__) 57 #include <sys/module.h> 58 #include <sys/bus.h> 59 #endif 60 #include <sys/proc.h> 61 #include <sys/queue.h> 62 #include <sys/select.h> 63 64 #if defined(__FreeBSD__) 65 #include <machine/bus_pio.h> 66 #endif 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/uhcireg.h> 77 #include <dev/usb/uhcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 86 87 #if defined(__OpenBSD__) 88 struct cfdriver uhci_cd = { 89 NULL, "uhci", DV_DULL 90 }; 91 #endif 92 93 /* 94 * The UHCI controller is little endian, so on big endian machines 95 * the data strored in memory needs to be swapped. 96 */ 97 #if BYTE_ORDER == BIG_ENDIAN 98 #define LE(x) (bswap32(x)) 99 #else 100 #define LE(x) (x) 101 #endif 102 103 struct uhci_pipe { 104 struct usbd_pipe pipe; 105 uhci_intr_info_t *iinfo; 106 int nexttoggle; 107 /* Info needed for different pipe kinds. */ 108 union { 109 /* Control pipe */ 110 struct { 111 uhci_soft_qh_t *sqh; 112 usb_dma_t reqdma; 113 uhci_soft_td_t *setup, *stat; 114 u_int length; 115 } ctl; 116 /* Interrupt pipe */ 117 struct { 118 int npoll; 119 uhci_soft_qh_t **qhs; 120 } intr; 121 /* Bulk pipe */ 122 struct { 123 uhci_soft_qh_t *sqh; 124 u_int length; 125 int isread; 126 } bulk; 127 /* Iso pipe */ 128 struct iso { 129 uhci_soft_td_t **stds; 130 int next, inuse; 131 } iso; 132 } u; 133 }; 134 135 /* 136 * The uhci_intr_info free list can be global since they contain 137 * no dma specific data. The other free lists do. 138 */ 139 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 140 141 void uhci_busreset __P((uhci_softc_t *)); 142 void uhci_power __P((int, void *)); 143 usbd_status uhci_run __P((uhci_softc_t *, int run)); 144 uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 145 void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 146 uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 147 void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 148 uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 149 void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 150 #if 0 151 void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 152 uhci_intr_info_t *)); 153 void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 154 #endif 155 156 void uhci_free_std_chain __P((uhci_softc_t *, 157 uhci_soft_td_t *, uhci_soft_td_t *)); 158 usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, uhci_softc_t *, 159 int, int, int, usb_dma_t *, 160 uhci_soft_td_t **, 161 uhci_soft_td_t **)); 162 void uhci_timo __P((void *)); 163 void uhci_waitintr __P((uhci_softc_t *, usbd_request_handle)); 164 void uhci_check_intr __P((uhci_softc_t *, uhci_intr_info_t *)); 165 void uhci_idone __P((uhci_intr_info_t *)); 166 void uhci_abort_req __P((usbd_request_handle, usbd_status status)); 167 void uhci_abort_req_end __P((void *v)); 168 void uhci_timeout __P((void *)); 169 void uhci_wakeup_ctrl __P((void *, int, int, void *, int)); 170 void uhci_lock_frames __P((uhci_softc_t *)); 171 void uhci_unlock_frames __P((uhci_softc_t *)); 172 void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 173 void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 174 void uhci_remove_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 175 void uhci_remove_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 176 int uhci_str __P((usb_string_descriptor_t *, int, char *)); 177 usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 178 void uhci_device_isoc_enter __P((usbd_request_handle)); 179 180 void uhci_wakeup_cb __P((usbd_request_handle reqh)); 181 182 usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, u_int32_t)); 183 void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 184 185 usbd_status uhci_device_ctrl_transfer __P((usbd_request_handle)); 186 usbd_status uhci_device_ctrl_start __P((usbd_request_handle)); 187 void uhci_device_ctrl_abort __P((usbd_request_handle)); 188 void uhci_device_ctrl_close __P((usbd_pipe_handle)); 189 void uhci_device_ctrl_done __P((usbd_request_handle)); 190 191 usbd_status uhci_device_intr_transfer __P((usbd_request_handle)); 192 usbd_status uhci_device_intr_start __P((usbd_request_handle)); 193 void uhci_device_intr_abort __P((usbd_request_handle)); 194 void uhci_device_intr_close __P((usbd_pipe_handle)); 195 void uhci_device_intr_done __P((usbd_request_handle)); 196 197 usbd_status uhci_device_bulk_transfer __P((usbd_request_handle)); 198 usbd_status uhci_device_bulk_start __P((usbd_request_handle)); 199 void uhci_device_bulk_abort __P((usbd_request_handle)); 200 void uhci_device_bulk_close __P((usbd_pipe_handle)); 201 void uhci_device_bulk_done __P((usbd_request_handle)); 202 203 usbd_status uhci_device_isoc_transfer __P((usbd_request_handle)); 204 usbd_status uhci_device_isoc_start __P((usbd_request_handle)); 205 void uhci_device_isoc_abort __P((usbd_request_handle)); 206 void uhci_device_isoc_close __P((usbd_pipe_handle)); 207 void uhci_device_isoc_done __P((usbd_request_handle)); 208 209 usbd_status uhci_root_ctrl_transfer __P((usbd_request_handle)); 210 usbd_status uhci_root_ctrl_start __P((usbd_request_handle)); 211 void uhci_root_ctrl_abort __P((usbd_request_handle)); 212 void uhci_root_ctrl_close __P((usbd_pipe_handle)); 213 214 usbd_status uhci_root_intr_transfer __P((usbd_request_handle)); 215 usbd_status uhci_root_intr_start __P((usbd_request_handle)); 216 void uhci_root_intr_abort __P((usbd_request_handle)); 217 void uhci_root_intr_close __P((usbd_pipe_handle)); 218 void uhci_root_intr_done __P((usbd_request_handle)); 219 220 usbd_status uhci_open __P((usbd_pipe_handle)); 221 void uhci_poll __P((struct usbd_bus *)); 222 223 usbd_status uhci_device_request __P((usbd_request_handle reqh)); 224 225 void uhci_add_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 226 void uhci_remove_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 227 usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 228 struct uhci_pipe *pipe, int ival)); 229 230 void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 231 void uhci_noop __P((usbd_pipe_handle pipe)); 232 233 #ifdef USB_DEBUG 234 static void uhci_dumpregs __P((uhci_softc_t *)); 235 void uhci_dump_tds __P((uhci_soft_td_t *)); 236 void uhci_dump_qh __P((uhci_soft_qh_t *)); 237 void uhci_dump __P((void)); 238 void uhci_dump_td __P((uhci_soft_td_t *)); 239 #endif 240 241 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 242 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 243 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 244 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 245 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 246 247 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 248 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 249 250 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 251 252 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 253 254 #define UHCI_INTR_ENDPT 1 255 256 struct usbd_bus_methods uhci_bus_methods = { 257 uhci_open, 258 uhci_poll, 259 uhci_allocm, 260 uhci_freem, 261 }; 262 263 struct usbd_pipe_methods uhci_root_ctrl_methods = { 264 uhci_root_ctrl_transfer, 265 uhci_root_ctrl_start, 266 uhci_root_ctrl_abort, 267 uhci_root_ctrl_close, 268 uhci_noop, 269 0, 270 }; 271 272 struct usbd_pipe_methods uhci_root_intr_methods = { 273 uhci_root_intr_transfer, 274 uhci_root_intr_start, 275 uhci_root_intr_abort, 276 uhci_root_intr_close, 277 uhci_noop, 278 uhci_root_intr_done, 279 }; 280 281 struct usbd_pipe_methods uhci_device_ctrl_methods = { 282 uhci_device_ctrl_transfer, 283 uhci_device_ctrl_start, 284 uhci_device_ctrl_abort, 285 uhci_device_ctrl_close, 286 uhci_noop, 287 uhci_device_ctrl_done, 288 }; 289 290 struct usbd_pipe_methods uhci_device_intr_methods = { 291 uhci_device_intr_transfer, 292 uhci_device_intr_start, 293 uhci_device_intr_abort, 294 uhci_device_intr_close, 295 uhci_device_clear_toggle, 296 uhci_device_intr_done, 297 }; 298 299 struct usbd_pipe_methods uhci_device_bulk_methods = { 300 uhci_device_bulk_transfer, 301 uhci_device_bulk_start, 302 uhci_device_bulk_abort, 303 uhci_device_bulk_close, 304 uhci_device_clear_toggle, 305 uhci_device_bulk_done, 306 }; 307 308 struct usbd_pipe_methods uhci_device_isoc_methods = { 309 uhci_device_isoc_transfer, 310 uhci_device_isoc_start, 311 uhci_device_isoc_abort, 312 uhci_device_isoc_close, 313 uhci_noop, 314 uhci_device_isoc_done, 315 }; 316 317 void 318 uhci_busreset(sc) 319 uhci_softc_t *sc; 320 { 321 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 322 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 323 UHCICMD(sc, 0); /* do nothing */ 324 } 325 326 usbd_status 327 uhci_init(sc) 328 uhci_softc_t *sc; 329 { 330 usbd_status r; 331 int i, j; 332 uhci_soft_qh_t *csqh, *bsqh, *sqh; 333 uhci_soft_td_t *std; 334 335 DPRINTFN(1,("uhci_init: start\n")); 336 337 #if defined(USB_DEBUG) 338 if (uhcidebug > 2) 339 uhci_dumpregs(sc); 340 #endif 341 342 uhci_run(sc, 0); /* stop the controller */ 343 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 344 345 uhci_busreset(sc); 346 347 /* Allocate and initialize real frame array. */ 348 r = usb_allocmem(&sc->sc_bus, 349 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 350 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 351 if (r != USBD_NORMAL_COMPLETION) 352 return (r); 353 sc->sc_pframes = KERNADDR(&sc->sc_dma); 354 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 355 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 356 357 /* Allocate the dummy QH where bulk traffic will be queued. */ 358 bsqh = uhci_alloc_sqh(sc); 359 if (!bsqh) 360 return (USBD_NOMEM); 361 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 362 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 363 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 364 365 /* Allocate the dummy QH where control traffic will be queued. */ 366 csqh = uhci_alloc_sqh(sc); 367 if (!csqh) 368 return (USBD_NOMEM); 369 csqh->hlink = bsqh; 370 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 371 csqh->qh.qh_elink = LE(UHCI_PTR_T); 372 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 373 374 /* 375 * Make all (virtual) frame list pointers point to the interrupt 376 * queue heads and the interrupt queue heads at the control 377 * queue head and point the physical frame list to the virtual. 378 */ 379 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 380 std = uhci_alloc_std(sc); 381 sqh = uhci_alloc_sqh(sc); 382 if (!std || !sqh) 383 return (USBD_NOMEM); 384 std->link.sqh = sqh; 385 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 386 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 387 std->td.td_token = LE(0); 388 std->td.td_buffer = LE(0); 389 sqh->hlink = csqh; 390 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 391 sqh->elink = 0; 392 sqh->qh.qh_elink = LE(UHCI_PTR_T); 393 sc->sc_vframes[i].htd = std; 394 sc->sc_vframes[i].etd = std; 395 sc->sc_vframes[i].hqh = sqh; 396 sc->sc_vframes[i].eqh = sqh; 397 for (j = i; 398 j < UHCI_FRAMELIST_COUNT; 399 j += UHCI_VFRAMELIST_COUNT) 400 sc->sc_pframes[j] = LE(std->physaddr); 401 } 402 403 LIST_INIT(&sc->sc_intrhead); 404 405 /* Set up the bus struct. */ 406 sc->sc_bus.methods = &uhci_bus_methods; 407 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 408 409 sc->sc_suspend = PWR_RESUME; 410 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 411 412 DPRINTFN(1,("uhci_init: enabling\n")); 413 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 414 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 415 416 return (uhci_run(sc, 1)); /* and here we go... */ 417 } 418 419 int 420 uhci_activate(self, act) 421 device_ptr_t self; 422 enum devact act; 423 { 424 /*struct uhci_softc *sc = (struct uhci_softc *)self;*/ 425 int rv = 0; 426 427 switch (act) { 428 case DVACT_ACTIVATE: 429 return (EOPNOTSUPP); 430 break; 431 432 case DVACT_DEACTIVATE: 433 break; 434 } 435 return (rv); 436 } 437 438 int 439 uhci_detach(self, flags) 440 device_ptr_t self; 441 int flags; 442 { 443 struct uhci_softc *sc = (struct uhci_softc *)self; 444 int rv = 0; 445 446 if (sc->sc_child != NULL) 447 rv = config_detach(sc->sc_child, flags); 448 449 if (rv != 0) 450 return (rv); 451 452 powerhook_disestablish(sc->sc_powerhook); 453 /* free data structures XXX */ 454 455 return (rv); 456 } 457 458 usbd_status 459 uhci_allocm(bus, dma, size) 460 struct usbd_bus *bus; 461 usb_dma_t *dma; 462 u_int32_t size; 463 { 464 struct uhci_softc *sc = (struct uhci_softc *)bus; 465 466 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 467 } 468 469 void 470 uhci_freem(bus, dma) 471 struct usbd_bus *bus; 472 usb_dma_t *dma; 473 { 474 struct uhci_softc *sc = (struct uhci_softc *)bus; 475 476 usb_freemem(&sc->sc_bus, dma); 477 } 478 479 #if !defined(__OpenBSD__) 480 /* 481 * Handle suspend/resume. 482 * 483 * We need to switch to polling mode here, because this routine is 484 * called from an intterupt context. This is all right since we 485 * are almost suspended anyway. 486 */ 487 void 488 uhci_power(why, v) 489 int why; 490 void *v; 491 { 492 uhci_softc_t *sc = v; 493 int cmd; 494 int s; 495 496 s = splusb(); 497 cmd = UREAD2(sc, UHCI_CMD); 498 499 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 500 sc, why, sc->sc_suspend, cmd)); 501 502 if (why != PWR_RESUME) { 503 #if defined(USB_DEBUG) 504 if (uhcidebug > 2) 505 uhci_dumpregs(sc); 506 #endif 507 if (sc->sc_has_timo) 508 usb_untimeout(uhci_timo, sc->sc_has_timo, 509 sc->sc_has_timo->timo_handle); 510 sc->sc_bus.use_polling = 1; 511 uhci_run(sc, 0); /* stop the controller */ 512 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 513 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 514 sc->sc_suspend = why; 515 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 516 } else { 517 /* 518 * XXX We should really do much more here in case the 519 * controller registers have been lost and BIOS has 520 * not restored them. 521 */ 522 sc->sc_suspend = why; 523 if (cmd & UHCI_CMD_RS) 524 uhci_run(sc, 0); /* in case BIOS has started it */ 525 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 526 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 527 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 528 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 529 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 530 uhci_run(sc, 1); /* and start traffic again */ 531 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 532 sc->sc_bus.use_polling = 0; 533 if (sc->sc_has_timo) 534 usb_timeout(uhci_timo, sc->sc_has_timo, 535 sc->sc_ival, sc->sc_has_timo->timo_handle); 536 #if defined(USB_DEBUG) 537 if (uhcidebug > 2) 538 uhci_dumpregs(sc); 539 #endif 540 } 541 splx(s); 542 } 543 #endif /* !defined(__OpenBSD__) */ 544 545 #ifdef USB_DEBUG 546 static void 547 uhci_dumpregs(sc) 548 uhci_softc_t *sc; 549 { 550 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 551 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 552 USBDEVNAME(sc->sc_bus.bdev), 553 UREAD2(sc, UHCI_CMD), 554 UREAD2(sc, UHCI_STS), 555 UREAD2(sc, UHCI_INTR), 556 UREAD2(sc, UHCI_FRNUM), 557 UREAD4(sc, UHCI_FLBASEADDR), 558 UREAD1(sc, UHCI_SOF), 559 UREAD2(sc, UHCI_PORTSC1), 560 UREAD2(sc, UHCI_PORTSC2))); 561 } 562 563 void 564 uhci_dump_td(p) 565 uhci_soft_td_t *p; 566 { 567 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 568 "token=0x%08lx buffer=0x%08lx\n", 569 p, (long)p->physaddr, 570 (long)LE(p->td.td_link), 571 (long)LE(p->td.td_status), 572 (long)LE(p->td.td_token), 573 (long)LE(p->td.td_buffer))); 574 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 575 "D=%d,maxlen=%d\n", 576 (int)LE(p->td.td_link), 577 "\20\1T\2Q\3VF", 578 (int)LE(p->td.td_status), 579 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 580 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 581 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 582 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 583 UHCI_TD_GET_PID(LE(p->td.td_token)), 584 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 585 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 586 UHCI_TD_GET_DT(LE(p->td.td_token)), 587 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 588 } 589 590 void 591 uhci_dump_qh(p) 592 uhci_soft_qh_t *p; 593 { 594 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 595 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 596 } 597 598 599 #if 0 600 void 601 uhci_dump() 602 { 603 uhci_softc_t *sc = uhci; 604 605 uhci_dumpregs(sc); 606 printf("intrs=%d\n", sc->sc_bus.no_intrs); 607 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 608 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 609 } 610 #endif 611 612 void 613 uhci_dump_tds(std) 614 uhci_soft_td_t *std; 615 { 616 uhci_soft_td_t *p; 617 618 for(p = std; p; p = p->link.std) 619 uhci_dump_td(p); 620 } 621 #endif 622 623 /* 624 * This routine is executed periodically and simulates interrupts 625 * from the root controller interrupt pipe for port status change. 626 */ 627 void 628 uhci_timo(addr) 629 void *addr; 630 { 631 usbd_request_handle reqh = addr; 632 usbd_pipe_handle pipe = reqh->pipe; 633 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 634 int s; 635 u_char *p; 636 637 DPRINTFN(15, ("uhci_timo\n")); 638 639 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 640 641 p = KERNADDR(&reqh->dmabuf); 642 p[0] = 0; 643 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 644 p[0] |= 1<<1; 645 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 646 p[0] |= 1<<2; 647 if (p[0] == 0) 648 /* No change, try again in a while */ 649 return; 650 651 reqh->actlen = 1; 652 reqh->status = USBD_NORMAL_COMPLETION; 653 s = splusb(); 654 reqh->hcpriv = 0; 655 reqh->device->bus->intr_context++; 656 usb_transfer_complete(reqh); 657 reqh->device->bus->intr_context--; 658 splx(s); 659 } 660 661 void 662 uhci_root_intr_done(reqh) 663 usbd_request_handle reqh; 664 { 665 } 666 667 668 void 669 uhci_lock_frames(sc) 670 uhci_softc_t *sc; 671 { 672 int s = splusb(); 673 while (sc->sc_vflock) { 674 sc->sc_vflock |= UHCI_WANT_LOCK; 675 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 676 } 677 sc->sc_vflock = UHCI_HAS_LOCK; 678 splx(s); 679 } 680 681 void 682 uhci_unlock_frames(sc) 683 uhci_softc_t *sc; 684 { 685 int s = splusb(); 686 sc->sc_vflock &= ~UHCI_HAS_LOCK; 687 if (sc->sc_vflock & UHCI_WANT_LOCK) 688 wakeup(&sc->sc_vflock); 689 splx(s); 690 } 691 692 /* 693 * Allocate an interrupt information struct. A free list is kept 694 * for fast allocation. 695 */ 696 uhci_intr_info_t * 697 uhci_alloc_intr_info(sc) 698 uhci_softc_t *sc; 699 { 700 uhci_intr_info_t *ii; 701 702 ii = LIST_FIRST(&uhci_ii_free); 703 if (ii) 704 LIST_REMOVE(ii, list); 705 else { 706 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 707 } 708 ii->sc = sc; 709 return ii; 710 } 711 712 void 713 uhci_free_intr_info(ii) 714 uhci_intr_info_t *ii; 715 { 716 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 717 } 718 719 /* Add control QH, called at splusb(). */ 720 void 721 uhci_add_ctrl(sc, sqh) 722 uhci_softc_t *sc; 723 uhci_soft_qh_t *sqh; 724 { 725 uhci_soft_qh_t *eqh; 726 727 SPLUSBCHECK; 728 729 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 730 eqh = sc->sc_ctl_end; 731 sqh->hlink = eqh->hlink; 732 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 733 eqh->hlink = sqh; 734 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 735 sc->sc_ctl_end = sqh; 736 } 737 738 /* Remove control QH, called at splusb(). */ 739 void 740 uhci_remove_ctrl(sc, sqh) 741 uhci_softc_t *sc; 742 uhci_soft_qh_t *sqh; 743 { 744 uhci_soft_qh_t *pqh; 745 746 SPLUSBCHECK; 747 748 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 749 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 750 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 751 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 752 printf("uhci_remove_ctrl: QH not found\n"); 753 return; 754 } 755 #else 756 ; 757 #endif 758 pqh->hlink = sqh->hlink; 759 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 760 if (sc->sc_ctl_end == sqh) 761 sc->sc_ctl_end = pqh; 762 } 763 764 /* Add bulk QH, called at splusb(). */ 765 void 766 uhci_add_bulk(sc, sqh) 767 uhci_softc_t *sc; 768 uhci_soft_qh_t *sqh; 769 { 770 uhci_soft_qh_t *eqh; 771 772 SPLUSBCHECK; 773 774 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 775 eqh = sc->sc_bulk_end; 776 sqh->hlink = eqh->hlink; 777 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 778 eqh->hlink = sqh; 779 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 780 sc->sc_bulk_end = sqh; 781 } 782 783 /* Remove bulk QH, called at splusb(). */ 784 void 785 uhci_remove_bulk(sc, sqh) 786 uhci_softc_t *sc; 787 uhci_soft_qh_t *sqh; 788 { 789 uhci_soft_qh_t *pqh; 790 791 SPLUSBCHECK; 792 793 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 794 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 795 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 796 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 797 printf("uhci_remove_bulk: QH not found\n"); 798 return; 799 } 800 #else 801 ; 802 #endif 803 pqh->hlink = sqh->hlink; 804 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 805 if (sc->sc_bulk_end == sqh) 806 sc->sc_bulk_end = pqh; 807 } 808 809 int 810 uhci_intr(arg) 811 void *arg; 812 { 813 uhci_softc_t *sc = arg; 814 int status; 815 int ack; 816 uhci_intr_info_t *ii; 817 818 #if defined(USB_DEBUG) 819 if (uhcidebug > 15) { 820 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 821 uhci_dumpregs(sc); 822 } 823 #endif 824 825 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 826 if (sc->sc_suspend != PWR_RESUME) 827 printf("uhci_intr: suspended sts=0x%x\n", status); 828 #endif 829 830 status = UREAD2(sc, UHCI_STS); 831 ack = 0; 832 if (status & UHCI_STS_USBINT) 833 ack |= UHCI_STS_USBINT; 834 if (status & UHCI_STS_USBEI) 835 ack |= UHCI_STS_USBEI; 836 if (status & UHCI_STS_RD) { 837 ack |= UHCI_STS_RD; 838 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 839 } 840 if (status & UHCI_STS_HSE) { 841 ack |= UHCI_STS_HSE; 842 printf("%s: host controller process error\n", 843 USBDEVNAME(sc->sc_bus.bdev)); 844 } 845 if (status & UHCI_STS_HCPE) { 846 ack |= UHCI_STS_HCPE; 847 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 848 } 849 if (status & UHCI_STS_HCH) { 850 /* no acknowledge needed */ 851 printf("%s: host controller halted\n", 852 USBDEVNAME(sc->sc_bus.bdev)); 853 } 854 855 if (ack) /* acknowledge the ints */ 856 UWRITE2(sc, UHCI_STS, ack); 857 else /* nothing to acknowledge */ 858 return (0); 859 860 sc->sc_bus.intr_context++; 861 sc->sc_bus.no_intrs++; 862 863 /* 864 * Interrupts on UHCI really suck. When the host controller 865 * interrupts because a transfer is completed there is no 866 * way of knowing which transfer it was. You can scan down 867 * the TDs and QHs of the previous frame to limit the search, 868 * but that assumes that the interrupt was not delayed by more 869 * than 1 ms, which may not always be true (e.g. after debug 870 * output on a slow console). 871 * We scan all interrupt descriptors to see if any have 872 * completed. 873 */ 874 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 875 uhci_check_intr(sc, ii); 876 877 DPRINTFN(10, ("uhci_intr: exit\n")); 878 879 sc->sc_bus.intr_context--; 880 881 return (1); 882 } 883 884 /* Check for an interrupt. */ 885 void 886 uhci_check_intr(sc, ii) 887 uhci_softc_t *sc; 888 uhci_intr_info_t *ii; 889 { 890 uhci_soft_td_t *std, *lstd; 891 u_int32_t status; 892 893 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 894 #ifdef DIAGNOSTIC 895 if (!ii) { 896 printf("uhci_check_intr: no ii? %p\n", ii); 897 return; 898 } 899 #endif 900 if (!ii->stdstart) 901 return; 902 lstd = ii->stdend; 903 #ifdef DIAGNOSTIC 904 if (!lstd) { 905 printf("uhci_check_intr: std==0\n"); 906 return; 907 } 908 #endif 909 /* 910 * If the last TD is still active we need to check whether there 911 * is a an error somewhere in the middle, or whether there was a 912 * short packet (SPD and not ACTIVE). 913 */ 914 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 915 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 916 for (std = ii->stdstart; std != lstd; std = std->link.std) { 917 status = LE(std->td.td_status); 918 if ((status & UHCI_TD_STALLED) || 919 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 920 UHCI_TD_SPD) 921 goto done; 922 } 923 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 924 ii, ii->stdstart)); 925 return; 926 } 927 done: 928 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 929 uhci_idone(ii); 930 } 931 932 /* Called at splusb() */ 933 void 934 uhci_idone(ii) 935 uhci_intr_info_t *ii; 936 { 937 usbd_request_handle reqh = ii->reqh; 938 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 939 uhci_soft_td_t *std; 940 u_int32_t status; 941 int actlen; 942 943 #ifdef DIAGNOSTIC 944 { 945 int s = splhigh(); 946 if (ii->isdone) { 947 splx(s); 948 printf("uhci_idone: ii=%p is done!\n", ii); 949 return; 950 } 951 ii->isdone = 1; 952 splx(s); 953 } 954 #endif 955 956 if (reqh->status == USBD_CANCELLED || 957 reqh->status == USBD_TIMEOUT) { 958 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 959 return; 960 } 961 962 if (reqh->nframes) { 963 /* Isoc transfer, do things differently. */ 964 uhci_soft_td_t **stds = upipe->u.iso.stds; 965 int i, n, nframes; 966 967 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 968 969 nframes = reqh->nframes; 970 actlen = 0; 971 n = reqh->hcprivint; 972 for (i = 0; i < nframes; i++) { 973 std = stds[n]; 974 #ifdef USB_DEBUG 975 if (uhcidebug > 5) { 976 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 977 uhci_dump_td(std); 978 } 979 #endif 980 if (++n >= UHCI_VFRAMELIST_COUNT) 981 n = 0; 982 status = LE(std->td.td_status); 983 actlen += UHCI_TD_GET_ACTLEN(status); 984 } 985 upipe->u.iso.inuse -= nframes; 986 reqh->actlen = actlen; 987 reqh->status = USBD_NORMAL_COMPLETION; 988 reqh->hcpriv = ii; 989 usb_transfer_complete(reqh); 990 return; 991 } 992 993 #ifdef USB_DEBUG 994 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 995 if (uhcidebug > 10) 996 uhci_dump_tds(ii->stdstart); 997 #endif 998 999 /* The transfer is done, compute actual length and status. */ 1000 /* XXX Is this correct for control xfers? */ 1001 actlen = 0; 1002 for (std = ii->stdstart; std; std = std->link.std) { 1003 status = LE(std->td.td_status); 1004 if (status & UHCI_TD_ACTIVE) 1005 break; 1006 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1007 UHCI_TD_PID_SETUP) 1008 actlen += UHCI_TD_GET_ACTLEN(status); 1009 } 1010 /* If there are left over TDs we need to update the toggle. */ 1011 if (std) 1012 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1013 1014 status &= UHCI_TD_ERROR; 1015 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1016 actlen, status)); 1017 reqh->actlen = actlen; 1018 if (status != 0) { 1019 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1020 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1021 "status 0x%b\n", 1022 reqh->pipe->device->address, 1023 reqh->pipe->endpoint->edesc->bEndpointAddress, 1024 (int)status, 1025 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1026 "STALLED\30ACTIVE")); 1027 if (status == UHCI_TD_STALLED) 1028 reqh->status = USBD_STALLED; 1029 else 1030 reqh->status = USBD_IOERROR; /* more info XXX */ 1031 } else { 1032 reqh->status = USBD_NORMAL_COMPLETION; 1033 } 1034 reqh->hcpriv = ii; 1035 usb_transfer_complete(reqh); 1036 } 1037 1038 /* 1039 * Called when a request does not complete. 1040 */ 1041 void 1042 uhci_timeout(addr) 1043 void *addr; 1044 { 1045 uhci_intr_info_t *ii = addr; 1046 1047 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1048 1049 ii->reqh->device->bus->intr_context++; 1050 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 1051 ii->reqh->device->bus->intr_context--; 1052 } 1053 1054 /* 1055 * Wait here until controller claims to have an interrupt. 1056 * Then call uhci_intr and return. Use timeout to avoid waiting 1057 * too long. 1058 * Only used during boot when interrupts are not enabled yet. 1059 */ 1060 void 1061 uhci_waitintr(sc, reqh) 1062 uhci_softc_t *sc; 1063 usbd_request_handle reqh; 1064 { 1065 int timo = reqh->timeout; 1066 uhci_intr_info_t *ii; 1067 1068 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1069 1070 reqh->status = USBD_IN_PROGRESS; 1071 for (; timo >= 0; timo--) { 1072 usb_delay_ms(&sc->sc_bus, 1); 1073 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1074 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1075 uhci_intr(sc); 1076 if (reqh->status != USBD_IN_PROGRESS) 1077 return; 1078 } 1079 } 1080 1081 /* Timeout */ 1082 DPRINTF(("uhci_waitintr: timeout\n")); 1083 for (ii = LIST_FIRST(&sc->sc_intrhead); 1084 ii && ii->reqh != reqh; 1085 ii = LIST_NEXT(ii, list)) 1086 ; 1087 #ifdef DIAGNOSTIC 1088 if (!ii) 1089 panic("uhci_waitintr: lost intr_info\n"); 1090 #endif 1091 uhci_idone(ii); 1092 } 1093 1094 void 1095 uhci_poll(bus) 1096 struct usbd_bus *bus; 1097 { 1098 uhci_softc_t *sc = (uhci_softc_t *)bus; 1099 1100 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1101 uhci_intr(sc); 1102 } 1103 1104 #if 0 1105 void 1106 uhci_reset(p) 1107 void *p; 1108 { 1109 uhci_softc_t *sc = p; 1110 int n; 1111 1112 UHCICMD(sc, UHCI_CMD_HCRESET); 1113 /* The reset bit goes low when the controller is done. */ 1114 for (n = 0; n < UHCI_RESET_TIMEOUT && 1115 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1116 delay(100); 1117 if (n >= UHCI_RESET_TIMEOUT) 1118 printf("%s: controller did not reset\n", 1119 USBDEVNAME(sc->sc_bus.bdev)); 1120 } 1121 #endif 1122 1123 usbd_status 1124 uhci_run(sc, run) 1125 uhci_softc_t *sc; 1126 int run; 1127 { 1128 int s, n, running; 1129 1130 run = run != 0; 1131 s = splusb(); 1132 DPRINTF(("uhci_run: setting run=%d\n", run)); 1133 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1134 for(n = 0; n < 10; n++) { 1135 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1136 /* return when we've entered the state we want */ 1137 if (run == running) { 1138 splx(s); 1139 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1140 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1141 return (USBD_NORMAL_COMPLETION); 1142 } 1143 usb_delay_ms(&sc->sc_bus, 1); 1144 } 1145 splx(s); 1146 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1147 run ? "start" : "stop"); 1148 return (USBD_IOERROR); 1149 } 1150 1151 /* 1152 * Memory management routines. 1153 * uhci_alloc_std allocates TDs 1154 * uhci_alloc_sqh allocates QHs 1155 * These two routines do their own free list management, 1156 * partly for speed, partly because allocating DMAable memory 1157 * has page size granularaity so much memory would be wasted if 1158 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1159 */ 1160 1161 uhci_soft_td_t * 1162 uhci_alloc_std(sc) 1163 uhci_softc_t *sc; 1164 { 1165 uhci_soft_td_t *std; 1166 usbd_status r; 1167 int i, offs; 1168 usb_dma_t dma; 1169 1170 if (!sc->sc_freetds) { 1171 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1172 r = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1173 UHCI_TD_ALIGN, &dma); 1174 if (r != USBD_NORMAL_COMPLETION) 1175 return (0); 1176 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1177 offs = i * UHCI_STD_SIZE; 1178 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1179 std->physaddr = DMAADDR(&dma) + offs; 1180 std->link.std = sc->sc_freetds; 1181 sc->sc_freetds = std; 1182 } 1183 } 1184 std = sc->sc_freetds; 1185 sc->sc_freetds = std->link.std; 1186 memset(&std->td, 0, sizeof(uhci_td_t)); 1187 return std; 1188 } 1189 1190 void 1191 uhci_free_std(sc, std) 1192 uhci_softc_t *sc; 1193 uhci_soft_td_t *std; 1194 { 1195 #ifdef DIAGNOSTIC 1196 #define TD_IS_FREE 0x12345678 1197 if (LE(std->td.td_token) == TD_IS_FREE) { 1198 printf("uhci_free_std: freeing free TD %p\n", std); 1199 return; 1200 } 1201 std->td.td_token = LE(TD_IS_FREE); 1202 #endif 1203 std->link.std = sc->sc_freetds; 1204 sc->sc_freetds = std; 1205 } 1206 1207 uhci_soft_qh_t * 1208 uhci_alloc_sqh(sc) 1209 uhci_softc_t *sc; 1210 { 1211 uhci_soft_qh_t *sqh; 1212 usbd_status r; 1213 int i, offs; 1214 usb_dma_t dma; 1215 1216 if (!sc->sc_freeqhs) { 1217 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1218 r = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1219 UHCI_QH_ALIGN, &dma); 1220 if (r != USBD_NORMAL_COMPLETION) 1221 return 0; 1222 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1223 offs = i * UHCI_SQH_SIZE; 1224 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1225 sqh->physaddr = DMAADDR(&dma) + offs; 1226 sqh->hlink = sc->sc_freeqhs; 1227 sc->sc_freeqhs = sqh; 1228 } 1229 } 1230 sqh = sc->sc_freeqhs; 1231 sc->sc_freeqhs = sqh->hlink; 1232 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1233 return (sqh); 1234 } 1235 1236 void 1237 uhci_free_sqh(sc, sqh) 1238 uhci_softc_t *sc; 1239 uhci_soft_qh_t *sqh; 1240 { 1241 sqh->hlink = sc->sc_freeqhs; 1242 sc->sc_freeqhs = sqh; 1243 } 1244 1245 #if 0 1246 /* 1247 * Enter a list of transfers onto a control queue. 1248 * Called at splusb() 1249 */ 1250 void 1251 uhci_enter_ctl_q(sc, sqh, ii) 1252 uhci_softc_t *sc; 1253 uhci_soft_qh_t *sqh; 1254 uhci_intr_info_t *ii; 1255 { 1256 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1257 1258 } 1259 #endif 1260 1261 void 1262 uhci_free_std_chain(sc, std, stdend) 1263 uhci_softc_t *sc; 1264 uhci_soft_td_t *std; 1265 uhci_soft_td_t *stdend; 1266 { 1267 uhci_soft_td_t *p; 1268 1269 for (; std != stdend; std = p) { 1270 p = std->link.std; 1271 uhci_free_std(sc, std); 1272 } 1273 } 1274 1275 usbd_status 1276 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1277 struct uhci_pipe *upipe; 1278 uhci_softc_t *sc; 1279 int len, rd, shortok; 1280 usb_dma_t *dma; 1281 uhci_soft_td_t **sp, **ep; 1282 { 1283 uhci_soft_td_t *p, *lastp; 1284 uhci_physaddr_t lastlink; 1285 int i, ntd, l, tog, maxp; 1286 u_int32_t status; 1287 int addr = upipe->pipe.device->address; 1288 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1289 1290 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1291 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1292 upipe->pipe.device->lowspeed, shortok)); 1293 if (len == 0) { 1294 *sp = *ep = 0; 1295 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1296 return (USBD_NORMAL_COMPLETION); 1297 } 1298 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1299 if (maxp == 0) { 1300 printf("uhci_alloc_std_chain: maxp=0\n"); 1301 return (USBD_INVAL); 1302 } 1303 ntd = (len + maxp - 1) / maxp; 1304 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1305 tog = upipe->nexttoggle; 1306 if (ntd % 2 == 0) 1307 tog ^= 1; 1308 upipe->nexttoggle = tog ^ 1; 1309 lastp = 0; 1310 lastlink = UHCI_PTR_T; 1311 ntd--; 1312 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1313 if (upipe->pipe.device->lowspeed) 1314 status |= UHCI_TD_LS; 1315 if (shortok) 1316 status |= UHCI_TD_SPD; 1317 for (i = ntd; i >= 0; i--) { 1318 p = uhci_alloc_std(sc); 1319 if (!p) { 1320 uhci_free_std_chain(sc, lastp, 0); 1321 return (USBD_NOMEM); 1322 } 1323 p->link.std = lastp; 1324 p->td.td_link = LE(lastlink); 1325 lastp = p; 1326 lastlink = p->physaddr; 1327 p->td.td_status = LE(status); 1328 if (i == ntd) { 1329 /* last TD */ 1330 l = len % maxp; 1331 if (l == 0) l = maxp; 1332 *ep = p; 1333 } else 1334 l = maxp; 1335 p->td.td_token = 1336 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1337 UHCI_TD_OUT(l, endpt, addr, tog)); 1338 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1339 tog ^= 1; 1340 } 1341 *sp = lastp; 1342 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1343 upipe->nexttoggle)); 1344 return (USBD_NORMAL_COMPLETION); 1345 } 1346 1347 void 1348 uhci_device_clear_toggle(pipe) 1349 usbd_pipe_handle pipe; 1350 { 1351 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1352 upipe->nexttoggle = 0; 1353 } 1354 1355 void 1356 uhci_noop(pipe) 1357 usbd_pipe_handle pipe; 1358 { 1359 } 1360 1361 usbd_status 1362 uhci_device_bulk_transfer(reqh) 1363 usbd_request_handle reqh; 1364 { 1365 usbd_status r; 1366 1367 /* Insert last in queue. */ 1368 r = usb_insert_transfer(reqh); 1369 if (r != USBD_NORMAL_COMPLETION) 1370 return (r); 1371 1372 /* Pipe isn't running, start first */ 1373 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1374 } 1375 1376 usbd_status 1377 uhci_device_bulk_start(reqh) 1378 usbd_request_handle reqh; 1379 { 1380 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1381 usbd_device_handle dev = upipe->pipe.device; 1382 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1383 uhci_intr_info_t *ii = upipe->iinfo; 1384 uhci_soft_td_t *xfer, *xferend; 1385 uhci_soft_qh_t *sqh; 1386 usbd_status r; 1387 int len, isread, endpt; 1388 int s; 1389 1390 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1391 reqh, reqh->length, reqh->flags)); 1392 1393 #ifdef DIAGNOSTIC 1394 if (reqh->rqflags & URQ_REQUEST) 1395 panic("uhci_device_bulk_transfer: a request\n"); 1396 #endif 1397 1398 len = reqh->length; 1399 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1400 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1401 sqh = upipe->u.bulk.sqh; 1402 1403 upipe->u.bulk.isread = isread; 1404 upipe->u.bulk.length = len; 1405 1406 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1407 reqh->flags & USBD_SHORT_XFER_OK, 1408 &reqh->dmabuf, &xfer, &xferend); 1409 if (r != USBD_NORMAL_COMPLETION) 1410 return (r); 1411 xferend->td.td_status |= LE(UHCI_TD_IOC); 1412 1413 #ifdef USB_DEBUG 1414 if (uhcidebug > 8) { 1415 DPRINTF(("uhci_device_bulk_transfer: xfer(1)\n")); 1416 uhci_dump_tds(xfer); 1417 } 1418 #endif 1419 1420 /* Set up interrupt info. */ 1421 ii->reqh = reqh; 1422 ii->stdstart = xfer; 1423 ii->stdend = xferend; 1424 #ifdef DIAGNOSTIC 1425 ii->isdone = 0; 1426 #endif 1427 1428 sqh->elink = xfer; 1429 sqh->qh.qh_elink = LE(xfer->physaddr); 1430 sqh->intr_info = ii; 1431 1432 s = splusb(); 1433 uhci_add_bulk(sc, sqh); 1434 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1435 1436 if (reqh->timeout && !sc->sc_bus.use_polling) { 1437 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1438 ii->timeout_handle); 1439 } 1440 splx(s); 1441 1442 #ifdef USB_DEBUG 1443 if (uhcidebug > 10) { 1444 DPRINTF(("uhci_device_bulk_transfer: xfer(2)\n")); 1445 uhci_dump_tds(xfer); 1446 } 1447 #endif 1448 1449 if (sc->sc_bus.use_polling) 1450 uhci_waitintr(sc, reqh); 1451 1452 return (USBD_IN_PROGRESS); 1453 } 1454 1455 /* Abort a device bulk request. */ 1456 void 1457 uhci_device_bulk_abort(reqh) 1458 usbd_request_handle reqh; 1459 { 1460 DPRINTF(("uhci_device_bulk_abort:\n")); 1461 uhci_abort_req(reqh, USBD_CANCELLED); 1462 } 1463 1464 void 1465 uhci_abort_req(reqh, status) 1466 usbd_request_handle reqh; 1467 usbd_status status; 1468 { 1469 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1470 uhci_intr_info_t *ii = upipe->iinfo; 1471 uhci_soft_td_t *std; 1472 1473 /* Make interrupt routine ignore it, */ 1474 reqh->status = status; 1475 1476 /* don't timeout, */ 1477 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1478 1479 /* make hardware ignore it, */ 1480 for (std = ii->stdstart; std != 0; std = std->link.std) 1481 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1482 1483 reqh->hcpriv = ii; 1484 1485 /* make sure hardware has completed, */ 1486 if (reqh->device->bus->intr_context) { 1487 /* We have no process context, so we can't use tsleep(). */ 1488 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1489 } else { 1490 usb_delay_ms(reqh->pipe->device->bus, 1); 1491 /* and call final part of interrupt handler. */ 1492 uhci_abort_req_end(reqh); 1493 } 1494 } 1495 1496 void 1497 uhci_abort_req_end(v) 1498 void *v; 1499 { 1500 usbd_request_handle reqh = v; 1501 int s; 1502 1503 s = splusb(); 1504 usb_transfer_complete(reqh); 1505 splx(s); 1506 } 1507 1508 /* Close a device bulk pipe. */ 1509 void 1510 uhci_device_bulk_close(pipe) 1511 usbd_pipe_handle pipe; 1512 { 1513 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1514 usbd_device_handle dev = upipe->pipe.device; 1515 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1516 1517 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1518 uhci_free_intr_info(upipe->iinfo); 1519 /* XXX free other resources */ 1520 } 1521 1522 usbd_status 1523 uhci_device_ctrl_transfer(reqh) 1524 usbd_request_handle reqh; 1525 { 1526 usbd_status r; 1527 1528 /* Insert last in queue. */ 1529 r = usb_insert_transfer(reqh); 1530 if (r != USBD_NORMAL_COMPLETION) 1531 return (r); 1532 1533 /* Pipe isn't running, start first */ 1534 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1535 } 1536 1537 usbd_status 1538 uhci_device_ctrl_start(reqh) 1539 usbd_request_handle reqh; 1540 { 1541 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1542 usbd_status r; 1543 1544 #ifdef DIAGNOSTIC 1545 if (!(reqh->rqflags & URQ_REQUEST)) 1546 panic("uhci_device_ctrl_transfer: not a request\n"); 1547 #endif 1548 1549 r = uhci_device_request(reqh); 1550 if (r != USBD_NORMAL_COMPLETION) 1551 return (r); 1552 1553 if (sc->sc_bus.use_polling) 1554 uhci_waitintr(sc, reqh); 1555 return (USBD_IN_PROGRESS); 1556 } 1557 1558 usbd_status 1559 uhci_device_intr_transfer(reqh) 1560 usbd_request_handle reqh; 1561 { 1562 usbd_status r; 1563 1564 /* Insert last in queue. */ 1565 r = usb_insert_transfer(reqh); 1566 if (r != USBD_NORMAL_COMPLETION) 1567 return (r); 1568 1569 /* Pipe isn't running, start first */ 1570 return (uhci_device_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1571 } 1572 1573 usbd_status 1574 uhci_device_intr_start(reqh) 1575 usbd_request_handle reqh; 1576 { 1577 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1578 usbd_device_handle dev = upipe->pipe.device; 1579 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1580 uhci_intr_info_t *ii = upipe->iinfo; 1581 uhci_soft_td_t *xfer, *xferend; 1582 uhci_soft_qh_t *sqh; 1583 usbd_status r; 1584 int i, s; 1585 1586 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1587 reqh, reqh->length, reqh->flags)); 1588 1589 #ifdef DIAGNOSTIC 1590 if (reqh->rqflags & URQ_REQUEST) 1591 panic("uhci_device_intr_transfer: a request\n"); 1592 #endif 1593 1594 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1595 reqh->flags & USBD_SHORT_XFER_OK, 1596 &reqh->dmabuf, &xfer, &xferend); 1597 if (r != USBD_NORMAL_COMPLETION) 1598 return (r); 1599 xferend->td.td_status |= LE(UHCI_TD_IOC); 1600 1601 #ifdef USB_DEBUG 1602 if (uhcidebug > 10) { 1603 DPRINTF(("uhci_device_intr_transfer: xfer(1)\n")); 1604 uhci_dump_tds(xfer); 1605 uhci_dump_qh(upipe->u.intr.qhs[0]); 1606 } 1607 #endif 1608 1609 s = splusb(); 1610 /* Set up interrupt info. */ 1611 ii->reqh = reqh; 1612 ii->stdstart = xfer; 1613 ii->stdend = xferend; 1614 #ifdef DIAGNOSTIC 1615 ii->isdone = 0; 1616 #endif 1617 1618 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1619 upipe->u.intr.qhs[0])); 1620 for (i = 0; i < upipe->u.intr.npoll; i++) { 1621 sqh = upipe->u.intr.qhs[i]; 1622 sqh->elink = xfer; 1623 sqh->qh.qh_elink = LE(xfer->physaddr); 1624 } 1625 splx(s); 1626 1627 #ifdef USB_DEBUG 1628 if (uhcidebug > 10) { 1629 DPRINTF(("uhci_device_intr_transfer: xfer(2)\n")); 1630 uhci_dump_tds(xfer); 1631 uhci_dump_qh(upipe->u.intr.qhs[0]); 1632 } 1633 #endif 1634 1635 return (USBD_IN_PROGRESS); 1636 } 1637 1638 /* Abort a device control request. */ 1639 void 1640 uhci_device_ctrl_abort(reqh) 1641 usbd_request_handle reqh; 1642 { 1643 DPRINTF(("uhci_device_ctrl_abort:\n")); 1644 uhci_abort_req(reqh, USBD_CANCELLED); 1645 } 1646 1647 /* Close a device control pipe. */ 1648 void 1649 uhci_device_ctrl_close(pipe) 1650 usbd_pipe_handle pipe; 1651 { 1652 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1653 1654 uhci_free_intr_info(upipe->iinfo); 1655 /* XXX free other resources */ 1656 } 1657 1658 /* Abort a device interrupt request. */ 1659 void 1660 uhci_device_intr_abort(reqh) 1661 usbd_request_handle reqh; 1662 { 1663 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1664 if (reqh->pipe->intrreqh == reqh) { 1665 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1666 reqh->pipe->intrreqh = 0; 1667 } 1668 uhci_abort_req(reqh, USBD_CANCELLED); 1669 } 1670 1671 /* Close a device interrupt pipe. */ 1672 void 1673 uhci_device_intr_close(pipe) 1674 usbd_pipe_handle pipe; 1675 { 1676 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1677 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1678 int i, s, npoll; 1679 1680 upipe->iinfo->stdstart = 0; /* inactive */ 1681 1682 /* Unlink descriptors from controller data structures. */ 1683 npoll = upipe->u.intr.npoll; 1684 uhci_lock_frames(sc); 1685 for (i = 0; i < npoll; i++) 1686 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1687 upipe->u.intr.qhs[i]); 1688 uhci_unlock_frames(sc); 1689 1690 /* 1691 * We now have to wait for any activity on the physical 1692 * descriptors to stop. 1693 */ 1694 usb_delay_ms(&sc->sc_bus, 2); 1695 1696 for(i = 0; i < npoll; i++) 1697 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1698 free(upipe->u.intr.qhs, M_USBHC); 1699 1700 s = splusb(); 1701 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1702 splx(s); 1703 uhci_free_intr_info(upipe->iinfo); 1704 1705 /* XXX free other resources */ 1706 } 1707 1708 usbd_status 1709 uhci_device_request(reqh) 1710 usbd_request_handle reqh; 1711 { 1712 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1713 usb_device_request_t *req = &reqh->request; 1714 usbd_device_handle dev = upipe->pipe.device; 1715 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1716 int addr = dev->address; 1717 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1718 uhci_intr_info_t *ii = upipe->iinfo; 1719 uhci_soft_td_t *setup, *xfer, *stat, *next, *xferend; 1720 uhci_soft_qh_t *sqh; 1721 int len; 1722 u_int32_t ls; 1723 usbd_status r; 1724 int isread; 1725 int s; 1726 1727 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1728 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1729 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1730 UGETW(req->wIndex), UGETW(req->wLength), 1731 addr, endpt)); 1732 1733 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1734 isread = req->bmRequestType & UT_READ; 1735 len = UGETW(req->wLength); 1736 1737 setup = upipe->u.ctl.setup; 1738 stat = upipe->u.ctl.stat; 1739 sqh = upipe->u.ctl.sqh; 1740 1741 /* Set up data transaction */ 1742 if (len != 0) { 1743 upipe->nexttoggle = 1; 1744 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1745 reqh->flags & USBD_SHORT_XFER_OK, 1746 &reqh->dmabuf, &xfer, &xferend); 1747 if (r != USBD_NORMAL_COMPLETION) 1748 return (r); 1749 next = xfer; 1750 xferend->link.std = stat; 1751 xferend->td.td_link = LE(stat->physaddr); 1752 } else { 1753 next = stat; 1754 } 1755 upipe->u.ctl.length = len; 1756 1757 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1758 1759 setup->link.std = next; 1760 setup->td.td_link = LE(next->physaddr); 1761 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1762 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1763 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1764 1765 stat->link.std = 0; 1766 stat->td.td_link = LE(UHCI_PTR_T); 1767 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1768 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1769 stat->td.td_token = 1770 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1771 UHCI_TD_IN (0, endpt, addr, 1)); 1772 stat->td.td_buffer = LE(0); 1773 1774 #ifdef USB_DEBUG 1775 if (uhcidebug > 20) { 1776 DPRINTF(("uhci_device_request: before transfer\n")); 1777 uhci_dump_tds(setup); 1778 } 1779 #endif 1780 1781 /* Set up interrupt info. */ 1782 ii->reqh = reqh; 1783 ii->stdstart = setup; 1784 ii->stdend = stat; 1785 #ifdef DIAGNOSTIC 1786 ii->isdone = 0; 1787 #endif 1788 1789 sqh->elink = setup; 1790 sqh->qh.qh_elink = LE(setup->physaddr); 1791 sqh->intr_info = ii; 1792 1793 s = splusb(); 1794 uhci_add_ctrl(sc, sqh); 1795 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1796 #ifdef USB_DEBUG 1797 if (uhcidebug > 12) { 1798 uhci_soft_td_t *std; 1799 uhci_soft_qh_t *xqh; 1800 uhci_soft_qh_t *sxqh; 1801 int maxqh = 0; 1802 uhci_physaddr_t link; 1803 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1804 for (std = sc->sc_vframes[0].htd, link = 0; 1805 (link & UHCI_PTR_Q) == 0; 1806 std = std->link.std) { 1807 link = LE(std->td.td_link); 1808 uhci_dump_td(std); 1809 } 1810 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1811 xqh; 1812 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1813 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1814 uhci_dump_qh(xqh); 1815 uhci_dump_qh(sxqh); 1816 } 1817 DPRINTF(("Enqueued QH:\n")); 1818 uhci_dump_qh(sqh); 1819 uhci_dump_tds(sqh->elink); 1820 } 1821 #endif 1822 if (reqh->timeout && !sc->sc_bus.use_polling) { 1823 usb_timeout(uhci_timeout, ii, 1824 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1825 } 1826 splx(s); 1827 1828 return (USBD_NORMAL_COMPLETION); 1829 } 1830 1831 usbd_status 1832 uhci_device_isoc_transfer(reqh) 1833 usbd_request_handle reqh; 1834 { 1835 usbd_status r; 1836 1837 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1838 1839 /* Put it on our queue, */ 1840 r = usb_insert_transfer(reqh); 1841 1842 /* bail out on error, */ 1843 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1844 return (r); 1845 1846 /* XXX should check inuse here */ 1847 1848 /* insert into schedule, */ 1849 uhci_device_isoc_enter(reqh); 1850 1851 /* and put on interrupt list if the pipe wasn't running */ 1852 if (r == USBD_NORMAL_COMPLETION) 1853 uhci_device_isoc_start(SIMPLEQ_FIRST(&reqh->pipe->queue)); 1854 1855 return (r); 1856 } 1857 1858 void 1859 uhci_device_isoc_enter(reqh) 1860 usbd_request_handle reqh; 1861 { 1862 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1863 usbd_device_handle dev = upipe->pipe.device; 1864 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1865 struct iso *iso = &upipe->u.iso; 1866 uhci_soft_td_t *std; 1867 u_int32_t buf, len, status; 1868 int s, i, next, nframes; 1869 1870 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1871 "nframes=%d\n", 1872 iso->inuse, iso->next, reqh, reqh->nframes)); 1873 1874 if (reqh->status == USBD_IN_PROGRESS) { 1875 /* This request has already been entered into the frame list */ 1876 } 1877 1878 #ifdef DIAGNOSTIC 1879 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1880 printf("uhci_device_isoc_enter: overflow!\n"); 1881 #endif 1882 1883 next = iso->next; 1884 if (next == -1) { 1885 /* Not in use yet, schedule it a few frames ahead. */ 1886 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1887 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1888 } 1889 1890 reqh->status = USBD_IN_PROGRESS; 1891 reqh->hcprivint = next; 1892 1893 buf = DMAADDR(&reqh->dmabuf); 1894 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1895 UHCI_TD_ACTIVE | 1896 UHCI_TD_IOS)); 1897 nframes = reqh->nframes; 1898 s = splusb(); 1899 for (i = 0; i < nframes; i++) { 1900 std = iso->stds[next]; 1901 if (++next >= UHCI_VFRAMELIST_COUNT) 1902 next = 0; 1903 len = reqh->frlengths[i]; 1904 std->td.td_buffer = LE(buf); 1905 if (i == nframes - 1) 1906 status |= LE(UHCI_TD_IOC); 1907 std->td.td_status = status; 1908 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1909 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1910 #ifdef USB_DEBUG 1911 if (uhcidebug > 5) { 1912 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1913 uhci_dump_td(std); 1914 } 1915 #endif 1916 buf += len; 1917 } 1918 iso->next = next; 1919 iso->inuse += reqh->nframes; 1920 1921 splx(s); 1922 } 1923 1924 usbd_status 1925 uhci_device_isoc_start(reqh) 1926 usbd_request_handle reqh; 1927 { 1928 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1929 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1930 uhci_intr_info_t *ii = upipe->iinfo; 1931 uhci_soft_td_t *end; 1932 int s, i; 1933 1934 #ifdef DIAGNOSTIC 1935 if (reqh->status != USBD_IN_PROGRESS) 1936 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1937 #endif 1938 1939 /* Find the last TD */ 1940 i = reqh->hcprivint + reqh->nframes; 1941 if (i >= UHCI_VFRAMELIST_COUNT) 1942 i -= UHCI_VFRAMELIST_COUNT; 1943 end = upipe->u.iso.stds[i]; 1944 1945 s = splusb(); 1946 1947 /* Set up interrupt info. */ 1948 ii->reqh = reqh; 1949 ii->stdstart = end; 1950 ii->stdend = end; 1951 #ifdef DIAGNOSTIC 1952 ii->isdone = 0; 1953 #endif 1954 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1955 1956 splx(s); 1957 1958 return (USBD_IN_PROGRESS); 1959 } 1960 1961 void 1962 uhci_device_isoc_abort(reqh) 1963 usbd_request_handle reqh; 1964 { 1965 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1966 uhci_intr_info_t *ii = upipe->iinfo; 1967 uhci_soft_td_t **stds = upipe->u.iso.stds; 1968 uhci_soft_td_t *std; 1969 int i, n, nframes; 1970 1971 /* Make interrupt routine ignore it, */ 1972 reqh->status = USBD_CANCELLED; 1973 1974 /* make hardware ignore it, */ 1975 nframes = reqh->nframes; 1976 n = reqh->hcprivint; 1977 for (i = 0; i < nframes; i++) { 1978 std = stds[n]; 1979 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1980 if (++n >= UHCI_VFRAMELIST_COUNT) 1981 n = 0; 1982 } 1983 1984 reqh->hcpriv = ii; 1985 1986 /* make sure hardware has completed, */ 1987 if (reqh->device->bus->intr_context) { 1988 /* We have no process context, so we can't use tsleep(). */ 1989 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1990 } else { 1991 usb_delay_ms(reqh->pipe->device->bus, 1); 1992 /* and call final part of interrupt handler. */ 1993 uhci_abort_req_end(reqh); 1994 } 1995 } 1996 1997 void 1998 uhci_device_isoc_close(pipe) 1999 usbd_pipe_handle pipe; 2000 { 2001 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2002 usbd_device_handle dev = upipe->pipe.device; 2003 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2004 uhci_soft_td_t *std, *vstd; 2005 struct iso *iso; 2006 int i; 2007 2008 /* 2009 * Make sure all TDs are marked as inactive. 2010 * Wait for completion. 2011 * Unschedule. 2012 * Deallocate. 2013 */ 2014 iso = &upipe->u.iso; 2015 2016 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2017 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2018 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2019 2020 uhci_lock_frames(sc); 2021 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2022 std = iso->stds[i]; 2023 for (vstd = sc->sc_vframes[i].htd; 2024 vstd && vstd->link.std != std; 2025 vstd = vstd->link.std) 2026 ; 2027 if (!vstd) { 2028 /*panic*/ 2029 printf("uhci_device_isoc_close: %p not found\n", std); 2030 uhci_unlock_frames(sc); 2031 return; 2032 } 2033 vstd->link = std->link; 2034 vstd->td.td_link = std->td.td_link; 2035 uhci_free_std(sc, std); 2036 } 2037 uhci_unlock_frames(sc); 2038 2039 free(iso->stds, M_USBHC); 2040 } 2041 2042 usbd_status 2043 uhci_setup_isoc(pipe) 2044 usbd_pipe_handle pipe; 2045 { 2046 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2047 usbd_device_handle dev = upipe->pipe.device; 2048 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2049 int addr = upipe->pipe.device->address; 2050 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2051 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2052 uhci_soft_td_t *std, *vstd; 2053 u_int32_t token; 2054 struct iso *iso; 2055 int i; 2056 2057 iso = &upipe->u.iso; 2058 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2059 M_USBHC, M_WAITOK); 2060 2061 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2062 UHCI_TD_OUT(0, endpt, addr, 0)); 2063 2064 /* Allocate the TDs and mark as inactive; */ 2065 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2066 std = uhci_alloc_std(sc); 2067 if (std == 0) 2068 goto bad; 2069 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2070 std->td.td_token = token; 2071 iso->stds[i] = std; 2072 } 2073 2074 /* Insert TDs into schedule. */ 2075 uhci_lock_frames(sc); 2076 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2077 std = iso->stds[i]; 2078 vstd = sc->sc_vframes[i].htd; 2079 std->link = vstd->link; 2080 std->td.td_link = vstd->td.td_link; 2081 vstd->link.std = std; 2082 vstd->td.td_link = LE(std->physaddr); 2083 } 2084 uhci_unlock_frames(sc); 2085 2086 iso->next = -1; 2087 iso->inuse = 0; 2088 2089 return (USBD_NORMAL_COMPLETION); 2090 2091 bad: 2092 while (--i >= 0) 2093 uhci_free_std(sc, iso->stds[i]); 2094 free(iso->stds, M_USBHC); 2095 return (USBD_NOMEM); 2096 } 2097 2098 void 2099 uhci_device_isoc_done(reqh) 2100 usbd_request_handle reqh; 2101 { 2102 uhci_intr_info_t *ii = reqh->hcpriv; 2103 2104 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2105 2106 /* Turn off the interrupt since it is active even if the TD is not. */ 2107 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2108 2109 LIST_REMOVE(ii, list); /* remove from active list */ 2110 } 2111 2112 void 2113 uhci_device_intr_done(reqh) 2114 usbd_request_handle reqh; 2115 { 2116 uhci_intr_info_t *ii = reqh->hcpriv; 2117 uhci_softc_t *sc = ii->sc; 2118 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2119 uhci_soft_qh_t *sqh; 2120 int i, npoll; 2121 2122 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2123 2124 npoll = upipe->u.intr.npoll; 2125 for(i = 0; i < npoll; i++) { 2126 sqh = upipe->u.intr.qhs[i]; 2127 sqh->elink = 0; 2128 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2129 } 2130 uhci_free_std_chain(sc, ii->stdstart, 0); 2131 2132 /* XXX Wasteful. */ 2133 if (reqh->pipe->repeat) { 2134 uhci_soft_td_t *xfer, *xferend; 2135 2136 /* This alloc cannot fail since we freed the chain above. */ 2137 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2138 reqh->flags & USBD_SHORT_XFER_OK, 2139 &reqh->dmabuf, &xfer, &xferend); 2140 xferend->td.td_status |= LE(UHCI_TD_IOC); 2141 2142 #ifdef USB_DEBUG 2143 if (uhcidebug > 10) { 2144 DPRINTF(("uhci_device_intr_done: xfer(1)\n")); 2145 uhci_dump_tds(xfer); 2146 uhci_dump_qh(upipe->u.intr.qhs[0]); 2147 } 2148 #endif 2149 2150 ii->stdstart = xfer; 2151 ii->stdend = xferend; 2152 #ifdef DIAGNOSTIC 2153 ii->isdone = 0; 2154 #endif 2155 for (i = 0; i < npoll; i++) { 2156 sqh = upipe->u.intr.qhs[i]; 2157 sqh->elink = xfer; 2158 sqh->qh.qh_elink = LE(xfer->physaddr); 2159 } 2160 } else { 2161 ii->stdstart = 0; /* mark as inactive */ 2162 } 2163 } 2164 2165 /* Deallocate request data structures */ 2166 void 2167 uhci_device_ctrl_done(reqh) 2168 usbd_request_handle reqh; 2169 { 2170 uhci_intr_info_t *ii = reqh->hcpriv; 2171 uhci_softc_t *sc = ii->sc; 2172 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2173 2174 #ifdef DIAGNOSTIC 2175 if (!(reqh->rqflags & URQ_REQUEST)) 2176 panic("uhci_ctrl_done: not a request\n"); 2177 #endif 2178 2179 LIST_REMOVE(ii, list); /* remove from active list */ 2180 2181 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2182 2183 if (upipe->u.ctl.length != 0) 2184 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2185 2186 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2187 } 2188 2189 /* Deallocate request data structures */ 2190 void 2191 uhci_device_bulk_done(reqh) 2192 usbd_request_handle reqh; 2193 { 2194 uhci_intr_info_t *ii = reqh->hcpriv; 2195 uhci_softc_t *sc = ii->sc; 2196 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2197 2198 LIST_REMOVE(ii, list); /* remove from active list */ 2199 2200 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2201 2202 uhci_free_std_chain(sc, ii->stdstart, 0); 2203 2204 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2205 } 2206 2207 /* Add interrupt QH, called with vflock. */ 2208 void 2209 uhci_add_intr(sc, n, sqh) 2210 uhci_softc_t *sc; 2211 int n; 2212 uhci_soft_qh_t *sqh; 2213 { 2214 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2215 uhci_soft_qh_t *eqh; 2216 2217 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2218 eqh = vf->eqh; 2219 sqh->hlink = eqh->hlink; 2220 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2221 eqh->hlink = sqh; 2222 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2223 vf->eqh = sqh; 2224 vf->bandwidth++; 2225 } 2226 2227 /* Remove interrupt QH, called with vflock. */ 2228 void 2229 uhci_remove_intr(sc, n, sqh) 2230 uhci_softc_t *sc; 2231 int n; 2232 uhci_soft_qh_t *sqh; 2233 { 2234 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2235 uhci_soft_qh_t *pqh; 2236 2237 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2238 2239 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2240 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2241 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2242 DPRINTF(("uhci_remove_intr: QH not found\n")); 2243 return; 2244 } 2245 #else 2246 ; 2247 #endif 2248 pqh->hlink = sqh->hlink; 2249 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2250 if (vf->eqh == sqh) 2251 vf->eqh = pqh; 2252 vf->bandwidth--; 2253 } 2254 2255 usbd_status 2256 uhci_device_setintr(sc, upipe, ival) 2257 uhci_softc_t *sc; 2258 struct uhci_pipe *upipe; 2259 int ival; 2260 { 2261 uhci_soft_qh_t *sqh; 2262 int i, npoll, s; 2263 u_int bestbw, bw, bestoffs, offs; 2264 2265 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2266 if (ival == 0) { 2267 printf("uhci_setintr: 0 interval\n"); 2268 return (USBD_INVAL); 2269 } 2270 2271 if (ival > UHCI_VFRAMELIST_COUNT) 2272 ival = UHCI_VFRAMELIST_COUNT; 2273 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2274 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2275 2276 upipe->u.intr.npoll = npoll; 2277 upipe->u.intr.qhs = 2278 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2279 2280 /* 2281 * Figure out which offset in the schedule that has most 2282 * bandwidth left over. 2283 */ 2284 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2285 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2286 for (bw = i = 0; i < npoll; i++) 2287 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2288 if (bw < bestbw) { 2289 bestbw = bw; 2290 bestoffs = offs; 2291 } 2292 } 2293 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2294 2295 upipe->iinfo->stdstart = 0; 2296 for(i = 0; i < npoll; i++) { 2297 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2298 sqh->elink = 0; 2299 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2300 sqh->pos = MOD(i * ival + bestoffs); 2301 sqh->intr_info = upipe->iinfo; 2302 } 2303 #undef MOD 2304 2305 s = splusb(); 2306 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2307 splx(s); 2308 2309 uhci_lock_frames(sc); 2310 /* Enter QHs into the controller data structures. */ 2311 for(i = 0; i < npoll; i++) 2312 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2313 upipe->u.intr.qhs[i]); 2314 uhci_unlock_frames(sc); 2315 2316 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2317 return (USBD_NORMAL_COMPLETION); 2318 } 2319 2320 /* Open a new pipe. */ 2321 usbd_status 2322 uhci_open(pipe) 2323 usbd_pipe_handle pipe; 2324 { 2325 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2326 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2327 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2328 usbd_status r; 2329 2330 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2331 pipe, pipe->device->address, 2332 ed->bEndpointAddress, sc->sc_addr)); 2333 if (pipe->device->address == sc->sc_addr) { 2334 switch (ed->bEndpointAddress) { 2335 case USB_CONTROL_ENDPOINT: 2336 pipe->methods = &uhci_root_ctrl_methods; 2337 break; 2338 case UE_DIR_IN | UHCI_INTR_ENDPT: 2339 pipe->methods = &uhci_root_intr_methods; 2340 break; 2341 default: 2342 return (USBD_INVAL); 2343 } 2344 } else { 2345 upipe->iinfo = uhci_alloc_intr_info(sc); 2346 if (upipe->iinfo == 0) 2347 return (USBD_NOMEM); 2348 switch (ed->bmAttributes & UE_XFERTYPE) { 2349 case UE_CONTROL: 2350 pipe->methods = &uhci_device_ctrl_methods; 2351 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2352 if (upipe->u.ctl.sqh == 0) 2353 goto bad; 2354 upipe->u.ctl.setup = uhci_alloc_std(sc); 2355 if (upipe->u.ctl.setup == 0) { 2356 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2357 goto bad; 2358 } 2359 upipe->u.ctl.stat = uhci_alloc_std(sc); 2360 if (upipe->u.ctl.stat == 0) { 2361 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2362 uhci_free_std(sc, upipe->u.ctl.setup); 2363 goto bad; 2364 } 2365 r = usb_allocmem(&sc->sc_bus, 2366 sizeof(usb_device_request_t), 2367 0, &upipe->u.ctl.reqdma); 2368 if (r != USBD_NORMAL_COMPLETION) { 2369 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2370 uhci_free_std(sc, upipe->u.ctl.setup); 2371 uhci_free_std(sc, upipe->u.ctl.stat); 2372 goto bad; 2373 } 2374 break; 2375 case UE_INTERRUPT: 2376 pipe->methods = &uhci_device_intr_methods; 2377 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2378 case UE_ISOCHRONOUS: 2379 pipe->methods = &uhci_device_isoc_methods; 2380 return (uhci_setup_isoc(pipe)); 2381 case UE_BULK: 2382 pipe->methods = &uhci_device_bulk_methods; 2383 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2384 if (upipe->u.bulk.sqh == 0) 2385 goto bad; 2386 break; 2387 } 2388 } 2389 return (USBD_NORMAL_COMPLETION); 2390 2391 bad: 2392 uhci_free_intr_info(upipe->iinfo); 2393 return (USBD_NOMEM); 2394 } 2395 2396 /* 2397 * Data structures and routines to emulate the root hub. 2398 */ 2399 usb_device_descriptor_t uhci_devd = { 2400 USB_DEVICE_DESCRIPTOR_SIZE, 2401 UDESC_DEVICE, /* type */ 2402 {0x00, 0x01}, /* USB version */ 2403 UCLASS_HUB, /* class */ 2404 USUBCLASS_HUB, /* subclass */ 2405 0, /* protocol */ 2406 64, /* max packet */ 2407 {0},{0},{0x00,0x01}, /* device id */ 2408 1,2,0, /* string indicies */ 2409 1 /* # of configurations */ 2410 }; 2411 2412 usb_config_descriptor_t uhci_confd = { 2413 USB_CONFIG_DESCRIPTOR_SIZE, 2414 UDESC_CONFIG, 2415 {USB_CONFIG_DESCRIPTOR_SIZE + 2416 USB_INTERFACE_DESCRIPTOR_SIZE + 2417 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2418 1, 2419 1, 2420 0, 2421 UC_SELF_POWERED, 2422 0 /* max power */ 2423 }; 2424 2425 usb_interface_descriptor_t uhci_ifcd = { 2426 USB_INTERFACE_DESCRIPTOR_SIZE, 2427 UDESC_INTERFACE, 2428 0, 2429 0, 2430 1, 2431 UCLASS_HUB, 2432 USUBCLASS_HUB, 2433 0, 2434 0 2435 }; 2436 2437 usb_endpoint_descriptor_t uhci_endpd = { 2438 USB_ENDPOINT_DESCRIPTOR_SIZE, 2439 UDESC_ENDPOINT, 2440 UE_DIR_IN | UHCI_INTR_ENDPT, 2441 UE_INTERRUPT, 2442 {8}, 2443 255 2444 }; 2445 2446 usb_hub_descriptor_t uhci_hubd_piix = { 2447 USB_HUB_DESCRIPTOR_SIZE, 2448 UDESC_HUB, 2449 2, 2450 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2451 50, /* power on to power good */ 2452 0, 2453 { 0x00 }, /* both ports are removable */ 2454 }; 2455 2456 int 2457 uhci_str(p, l, s) 2458 usb_string_descriptor_t *p; 2459 int l; 2460 char *s; 2461 { 2462 int i; 2463 2464 if (l == 0) 2465 return (0); 2466 p->bLength = 2 * strlen(s) + 2; 2467 if (l == 1) 2468 return (1); 2469 p->bDescriptorType = UDESC_STRING; 2470 l -= 2; 2471 for (i = 0; s[i] && l > 1; i++, l -= 2) 2472 USETW2(p->bString[i], 0, s[i]); 2473 return (2*i+2); 2474 } 2475 2476 /* 2477 * Simulate a hardware hub by handling all the necessary requests. 2478 */ 2479 usbd_status 2480 uhci_root_ctrl_transfer(reqh) 2481 usbd_request_handle reqh; 2482 { 2483 usbd_status r; 2484 2485 /* Insert last in queue. */ 2486 r = usb_insert_transfer(reqh); 2487 if (r != USBD_NORMAL_COMPLETION) 2488 return (r); 2489 2490 /* Pipe isn't running, start first */ 2491 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2492 } 2493 2494 usbd_status 2495 uhci_root_ctrl_start(reqh) 2496 usbd_request_handle reqh; 2497 { 2498 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2499 usb_device_request_t *req; 2500 void *buf; 2501 int port, x; 2502 int s, len, value, index, status, change, l, totlen = 0; 2503 usb_port_status_t ps; 2504 usbd_status r; 2505 2506 #ifdef DIAGNOSTIC 2507 if (!(reqh->rqflags & URQ_REQUEST)) 2508 panic("uhci_root_ctrl_transfer: not a request\n"); 2509 #endif 2510 req = &reqh->request; 2511 2512 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2513 req->bmRequestType, req->bRequest)); 2514 2515 len = UGETW(req->wLength); 2516 value = UGETW(req->wValue); 2517 index = UGETW(req->wIndex); 2518 2519 if (len != 0) 2520 buf = KERNADDR(&reqh->dmabuf); 2521 #ifdef DIAGNOSTIC 2522 else 2523 buf = 0; 2524 #endif 2525 2526 #define C(x,y) ((x) | ((y) << 8)) 2527 switch(C(req->bRequest, req->bmRequestType)) { 2528 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2529 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2530 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2531 /* 2532 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2533 * for the integrated root hub. 2534 */ 2535 break; 2536 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2537 if (len > 0) { 2538 *(u_int8_t *)buf = sc->sc_conf; 2539 totlen = 1; 2540 } 2541 break; 2542 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2543 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2544 switch(value >> 8) { 2545 case UDESC_DEVICE: 2546 if ((value & 0xff) != 0) { 2547 r = USBD_IOERROR; 2548 goto ret; 2549 } 2550 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2551 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2552 memcpy(buf, &uhci_devd, l); 2553 break; 2554 case UDESC_CONFIG: 2555 if ((value & 0xff) != 0) { 2556 r = USBD_IOERROR; 2557 goto ret; 2558 } 2559 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2560 memcpy(buf, &uhci_confd, l); 2561 buf = (char *)buf + l; 2562 len -= l; 2563 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2564 totlen += l; 2565 memcpy(buf, &uhci_ifcd, l); 2566 buf = (char *)buf + l; 2567 len -= l; 2568 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2569 totlen += l; 2570 memcpy(buf, &uhci_endpd, l); 2571 break; 2572 case UDESC_STRING: 2573 if (len == 0) 2574 break; 2575 *(u_int8_t *)buf = 0; 2576 totlen = 1; 2577 switch (value & 0xff) { 2578 case 1: /* Vendor */ 2579 totlen = uhci_str(buf, len, sc->sc_vendor); 2580 break; 2581 case 2: /* Product */ 2582 totlen = uhci_str(buf, len, "UHCI root hub"); 2583 break; 2584 } 2585 break; 2586 default: 2587 r = USBD_IOERROR; 2588 goto ret; 2589 } 2590 break; 2591 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2592 if (len > 0) { 2593 *(u_int8_t *)buf = 0; 2594 totlen = 1; 2595 } 2596 break; 2597 case C(UR_GET_STATUS, UT_READ_DEVICE): 2598 if (len > 1) { 2599 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2600 totlen = 2; 2601 } 2602 break; 2603 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2604 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2605 if (len > 1) { 2606 USETW(((usb_status_t *)buf)->wStatus, 0); 2607 totlen = 2; 2608 } 2609 break; 2610 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2611 if (value >= USB_MAX_DEVICES) { 2612 r = USBD_IOERROR; 2613 goto ret; 2614 } 2615 sc->sc_addr = value; 2616 break; 2617 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2618 if (value != 0 && value != 1) { 2619 r = USBD_IOERROR; 2620 goto ret; 2621 } 2622 sc->sc_conf = value; 2623 break; 2624 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2625 break; 2626 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2627 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2628 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2629 r = USBD_IOERROR; 2630 goto ret; 2631 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2632 break; 2633 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2634 break; 2635 /* Hub requests */ 2636 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2637 break; 2638 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2639 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2640 "port=%d feature=%d\n", 2641 index, value)); 2642 if (index == 1) 2643 port = UHCI_PORTSC1; 2644 else if (index == 2) 2645 port = UHCI_PORTSC2; 2646 else { 2647 r = USBD_IOERROR; 2648 goto ret; 2649 } 2650 switch(value) { 2651 case UHF_PORT_ENABLE: 2652 x = UREAD2(sc, port); 2653 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2654 break; 2655 case UHF_PORT_SUSPEND: 2656 x = UREAD2(sc, port); 2657 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2658 break; 2659 case UHF_PORT_RESET: 2660 x = UREAD2(sc, port); 2661 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2662 break; 2663 case UHF_C_PORT_CONNECTION: 2664 x = UREAD2(sc, port); 2665 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2666 break; 2667 case UHF_C_PORT_ENABLE: 2668 x = UREAD2(sc, port); 2669 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2670 break; 2671 case UHF_C_PORT_OVER_CURRENT: 2672 x = UREAD2(sc, port); 2673 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2674 break; 2675 case UHF_C_PORT_RESET: 2676 sc->sc_isreset = 0; 2677 r = USBD_NORMAL_COMPLETION; 2678 goto ret; 2679 case UHF_PORT_CONNECTION: 2680 case UHF_PORT_OVER_CURRENT: 2681 case UHF_PORT_POWER: 2682 case UHF_PORT_LOW_SPEED: 2683 case UHF_C_PORT_SUSPEND: 2684 default: 2685 r = USBD_IOERROR; 2686 goto ret; 2687 } 2688 break; 2689 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2690 if (index == 1) 2691 port = UHCI_PORTSC1; 2692 else if (index == 2) 2693 port = UHCI_PORTSC2; 2694 else { 2695 r = USBD_IOERROR; 2696 goto ret; 2697 } 2698 if (len > 0) { 2699 *(u_int8_t *)buf = 2700 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2701 UHCI_PORTSC_LS_SHIFT; 2702 totlen = 1; 2703 } 2704 break; 2705 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2706 if (value != 0) { 2707 r = USBD_IOERROR; 2708 goto ret; 2709 } 2710 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2711 totlen = l; 2712 memcpy(buf, &uhci_hubd_piix, l); 2713 break; 2714 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2715 if (len != 4) { 2716 r = USBD_IOERROR; 2717 goto ret; 2718 } 2719 memset(buf, 0, len); 2720 totlen = len; 2721 break; 2722 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2723 if (index == 1) 2724 port = UHCI_PORTSC1; 2725 else if (index == 2) 2726 port = UHCI_PORTSC2; 2727 else { 2728 r = USBD_IOERROR; 2729 goto ret; 2730 } 2731 if (len != 4) { 2732 r = USBD_IOERROR; 2733 goto ret; 2734 } 2735 x = UREAD2(sc, port); 2736 status = change = 0; 2737 if (x & UHCI_PORTSC_CCS ) 2738 status |= UPS_CURRENT_CONNECT_STATUS; 2739 if (x & UHCI_PORTSC_CSC ) 2740 change |= UPS_C_CONNECT_STATUS; 2741 if (x & UHCI_PORTSC_PE ) 2742 status |= UPS_PORT_ENABLED; 2743 if (x & UHCI_PORTSC_POEDC) 2744 change |= UPS_C_PORT_ENABLED; 2745 if (x & UHCI_PORTSC_OCI ) 2746 status |= UPS_OVERCURRENT_INDICATOR; 2747 if (x & UHCI_PORTSC_OCIC ) 2748 change |= UPS_C_OVERCURRENT_INDICATOR; 2749 if (x & UHCI_PORTSC_SUSP ) 2750 status |= UPS_SUSPEND; 2751 if (x & UHCI_PORTSC_LSDA ) 2752 status |= UPS_LOW_SPEED; 2753 status |= UPS_PORT_POWER; 2754 if (sc->sc_isreset) 2755 change |= UPS_C_PORT_RESET; 2756 USETW(ps.wPortStatus, status); 2757 USETW(ps.wPortChange, change); 2758 l = min(len, sizeof ps); 2759 memcpy(buf, &ps, l); 2760 totlen = l; 2761 break; 2762 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2763 r = USBD_IOERROR; 2764 goto ret; 2765 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2766 break; 2767 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2768 if (index == 1) 2769 port = UHCI_PORTSC1; 2770 else if (index == 2) 2771 port = UHCI_PORTSC2; 2772 else { 2773 r = USBD_IOERROR; 2774 goto ret; 2775 } 2776 switch(value) { 2777 case UHF_PORT_ENABLE: 2778 x = UREAD2(sc, port); 2779 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2780 break; 2781 case UHF_PORT_SUSPEND: 2782 x = UREAD2(sc, port); 2783 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2784 break; 2785 case UHF_PORT_RESET: 2786 x = UREAD2(sc, port); 2787 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2788 usb_delay_ms(&sc->sc_bus, 10); 2789 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2790 delay(100); 2791 x = UREAD2(sc, port); 2792 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2793 delay(100); 2794 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2795 index, UREAD2(sc, port))); 2796 sc->sc_isreset = 1; 2797 break; 2798 case UHF_C_PORT_CONNECTION: 2799 case UHF_C_PORT_ENABLE: 2800 case UHF_C_PORT_OVER_CURRENT: 2801 case UHF_PORT_CONNECTION: 2802 case UHF_PORT_OVER_CURRENT: 2803 case UHF_PORT_POWER: 2804 case UHF_PORT_LOW_SPEED: 2805 case UHF_C_PORT_SUSPEND: 2806 case UHF_C_PORT_RESET: 2807 default: 2808 r = USBD_IOERROR; 2809 goto ret; 2810 } 2811 break; 2812 default: 2813 r = USBD_IOERROR; 2814 goto ret; 2815 } 2816 reqh->actlen = totlen; 2817 r = USBD_NORMAL_COMPLETION; 2818 ret: 2819 reqh->status = r; 2820 reqh->hcpriv = 0; 2821 s = splusb(); 2822 usb_transfer_complete(reqh); 2823 splx(s); 2824 return (USBD_IN_PROGRESS); 2825 } 2826 2827 /* Abort a root control request. */ 2828 void 2829 uhci_root_ctrl_abort(reqh) 2830 usbd_request_handle reqh; 2831 { 2832 /* Nothing to do, all transfers are syncronous. */ 2833 } 2834 2835 /* Close the root pipe. */ 2836 void 2837 uhci_root_ctrl_close(pipe) 2838 usbd_pipe_handle pipe; 2839 { 2840 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2841 2842 sc->sc_has_timo = 0; 2843 DPRINTF(("uhci_root_ctrl_close\n")); 2844 } 2845 2846 /* Abort a root interrupt request. */ 2847 void 2848 uhci_root_intr_abort(reqh) 2849 usbd_request_handle reqh; 2850 { 2851 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2852 2853 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2854 sc->sc_has_timo = 0; 2855 } 2856 2857 usbd_status 2858 uhci_root_intr_transfer(reqh) 2859 usbd_request_handle reqh; 2860 { 2861 usbd_status r; 2862 2863 /* Insert last in queue. */ 2864 r = usb_insert_transfer(reqh); 2865 if (r != USBD_NORMAL_COMPLETION) 2866 return (r); 2867 2868 /* Pipe isn't running, start first */ 2869 return (uhci_root_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2870 } 2871 2872 /* Start a transfer on the root interrupt pipe */ 2873 usbd_status 2874 uhci_root_intr_start(reqh) 2875 usbd_request_handle reqh; 2876 { 2877 usbd_pipe_handle pipe = reqh->pipe; 2878 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2879 2880 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2881 reqh, reqh->length, reqh->flags)); 2882 2883 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2884 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2885 sc->sc_has_timo = reqh; 2886 return (USBD_IN_PROGRESS); 2887 } 2888 2889 /* Close the root interrupt pipe. */ 2890 void 2891 uhci_root_intr_close(pipe) 2892 usbd_pipe_handle pipe; 2893 { 2894 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2895 2896 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2897 sc->sc_has_timo = 0; 2898 DPRINTF(("uhci_root_intr_close\n")); 2899 } 2900 2901
Indexes created Sun Sep 21 20:09:37 GMT 2025