uhci.c revision 1.56
1 /* $NetBSD: uhci.c,v 1.56 1999/09/18 11:25:51 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 if (sc->sc_child != NULL) 434 rv = config_deactivate(sc->sc_child); 435 break; 436 } 437 return (rv); 438 } 439 440 int 441 uhci_detach(self, flags) 442 device_ptr_t self; 443 int flags; 444 { 445 struct uhci_softc *sc = (struct uhci_softc *)self; 446 int rv = 0; 447 448 if (sc->sc_child != NULL) 449 rv = config_detach(sc->sc_child, flags); 450 451 if (rv != 0) 452 return (rv); 453 454 powerhook_disestablish(sc->sc_powerhook); 455 /* free data structures XXX */ 456 457 return (rv); 458 } 459 460 usbd_status 461 uhci_allocm(bus, dma, size) 462 struct usbd_bus *bus; 463 usb_dma_t *dma; 464 u_int32_t size; 465 { 466 struct uhci_softc *sc = (struct uhci_softc *)bus; 467 468 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 469 } 470 471 void 472 uhci_freem(bus, dma) 473 struct usbd_bus *bus; 474 usb_dma_t *dma; 475 { 476 struct uhci_softc *sc = (struct uhci_softc *)bus; 477 478 usb_freemem(&sc->sc_bus, dma); 479 } 480 481 #if !defined(__OpenBSD__) 482 /* 483 * Handle suspend/resume. 484 * 485 * We need to switch to polling mode here, because this routine is 486 * called from an intterupt context. This is all right since we 487 * are almost suspended anyway. 488 */ 489 void 490 uhci_power(why, v) 491 int why; 492 void *v; 493 { 494 uhci_softc_t *sc = v; 495 int cmd; 496 int s; 497 498 s = splusb(); 499 cmd = UREAD2(sc, UHCI_CMD); 500 501 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 502 sc, why, sc->sc_suspend, cmd)); 503 504 if (why != PWR_RESUME) { 505 #if defined(USB_DEBUG) 506 if (uhcidebug > 2) 507 uhci_dumpregs(sc); 508 #endif 509 if (sc->sc_has_timo) 510 usb_untimeout(uhci_timo, sc->sc_has_timo, 511 sc->sc_has_timo->timo_handle); 512 sc->sc_bus.use_polling++; 513 uhci_run(sc, 0); /* stop the controller */ 514 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 515 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 516 sc->sc_suspend = why; 517 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 518 } else { 519 /* 520 * XXX We should really do much more here in case the 521 * controller registers have been lost and BIOS has 522 * not restored them. 523 */ 524 sc->sc_suspend = why; 525 if (cmd & UHCI_CMD_RS) 526 uhci_run(sc, 0); /* in case BIOS has started it */ 527 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 528 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 529 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 530 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 531 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 532 uhci_run(sc, 1); /* and start traffic again */ 533 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 534 sc->sc_bus.use_polling--; 535 if (sc->sc_has_timo) 536 usb_timeout(uhci_timo, sc->sc_has_timo, 537 sc->sc_ival, sc->sc_has_timo->timo_handle); 538 #if defined(USB_DEBUG) 539 if (uhcidebug > 2) 540 uhci_dumpregs(sc); 541 #endif 542 } 543 splx(s); 544 } 545 #endif /* !defined(__OpenBSD__) */ 546 547 #ifdef USB_DEBUG 548 static void 549 uhci_dumpregs(sc) 550 uhci_softc_t *sc; 551 { 552 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 553 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 554 USBDEVNAME(sc->sc_bus.bdev), 555 UREAD2(sc, UHCI_CMD), 556 UREAD2(sc, UHCI_STS), 557 UREAD2(sc, UHCI_INTR), 558 UREAD2(sc, UHCI_FRNUM), 559 UREAD4(sc, UHCI_FLBASEADDR), 560 UREAD1(sc, UHCI_SOF), 561 UREAD2(sc, UHCI_PORTSC1), 562 UREAD2(sc, UHCI_PORTSC2))); 563 } 564 565 void 566 uhci_dump_td(p) 567 uhci_soft_td_t *p; 568 { 569 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 570 "token=0x%08lx buffer=0x%08lx\n", 571 p, (long)p->physaddr, 572 (long)LE(p->td.td_link), 573 (long)LE(p->td.td_status), 574 (long)LE(p->td.td_token), 575 (long)LE(p->td.td_buffer))); 576 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 577 "D=%d,maxlen=%d\n", 578 (int)LE(p->td.td_link), 579 "\20\1T\2Q\3VF", 580 (int)LE(p->td.td_status), 581 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 582 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 583 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 584 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 585 UHCI_TD_GET_PID(LE(p->td.td_token)), 586 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 587 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 588 UHCI_TD_GET_DT(LE(p->td.td_token)), 589 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 590 } 591 592 void 593 uhci_dump_qh(p) 594 uhci_soft_qh_t *p; 595 { 596 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 597 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 598 } 599 600 601 #if 0 602 void 603 uhci_dump() 604 { 605 uhci_softc_t *sc = uhci; 606 607 uhci_dumpregs(sc); 608 printf("intrs=%d\n", sc->sc_bus.no_intrs); 609 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 610 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 611 } 612 #endif 613 614 void 615 uhci_dump_tds(std) 616 uhci_soft_td_t *std; 617 { 618 uhci_soft_td_t *p; 619 620 for(p = std; p; p = p->link.std) 621 uhci_dump_td(p); 622 } 623 #endif 624 625 /* 626 * This routine is executed periodically and simulates interrupts 627 * from the root controller interrupt pipe for port status change. 628 */ 629 void 630 uhci_timo(addr) 631 void *addr; 632 { 633 usbd_request_handle reqh = addr; 634 usbd_pipe_handle pipe = reqh->pipe; 635 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 636 int s; 637 u_char *p; 638 639 DPRINTFN(15, ("uhci_timo\n")); 640 641 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 642 643 p = KERNADDR(&reqh->dmabuf); 644 p[0] = 0; 645 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 646 p[0] |= 1<<1; 647 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 648 p[0] |= 1<<2; 649 if (p[0] == 0) 650 /* No change, try again in a while */ 651 return; 652 653 reqh->actlen = 1; 654 reqh->status = USBD_NORMAL_COMPLETION; 655 s = splusb(); 656 reqh->hcpriv = 0; 657 reqh->device->bus->intr_context++; 658 usb_transfer_complete(reqh); 659 reqh->device->bus->intr_context--; 660 splx(s); 661 } 662 663 void 664 uhci_root_intr_done(reqh) 665 usbd_request_handle reqh; 666 { 667 } 668 669 670 void 671 uhci_lock_frames(sc) 672 uhci_softc_t *sc; 673 { 674 int s = splusb(); 675 while (sc->sc_vflock) { 676 sc->sc_vflock |= UHCI_WANT_LOCK; 677 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 678 } 679 sc->sc_vflock = UHCI_HAS_LOCK; 680 splx(s); 681 } 682 683 void 684 uhci_unlock_frames(sc) 685 uhci_softc_t *sc; 686 { 687 int s = splusb(); 688 sc->sc_vflock &= ~UHCI_HAS_LOCK; 689 if (sc->sc_vflock & UHCI_WANT_LOCK) 690 wakeup(&sc->sc_vflock); 691 splx(s); 692 } 693 694 /* 695 * Allocate an interrupt information struct. A free list is kept 696 * for fast allocation. 697 */ 698 uhci_intr_info_t * 699 uhci_alloc_intr_info(sc) 700 uhci_softc_t *sc; 701 { 702 uhci_intr_info_t *ii; 703 704 ii = LIST_FIRST(&uhci_ii_free); 705 if (ii) 706 LIST_REMOVE(ii, list); 707 else { 708 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 709 } 710 ii->sc = sc; 711 return ii; 712 } 713 714 void 715 uhci_free_intr_info(ii) 716 uhci_intr_info_t *ii; 717 { 718 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 719 } 720 721 /* Add control QH, called at splusb(). */ 722 void 723 uhci_add_ctrl(sc, sqh) 724 uhci_softc_t *sc; 725 uhci_soft_qh_t *sqh; 726 { 727 uhci_soft_qh_t *eqh; 728 729 SPLUSBCHECK; 730 731 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 732 eqh = sc->sc_ctl_end; 733 sqh->hlink = eqh->hlink; 734 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 735 eqh->hlink = sqh; 736 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 737 sc->sc_ctl_end = sqh; 738 } 739 740 /* Remove control QH, called at splusb(). */ 741 void 742 uhci_remove_ctrl(sc, sqh) 743 uhci_softc_t *sc; 744 uhci_soft_qh_t *sqh; 745 { 746 uhci_soft_qh_t *pqh; 747 748 SPLUSBCHECK; 749 750 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 751 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 752 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 753 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 754 printf("uhci_remove_ctrl: QH not found\n"); 755 return; 756 } 757 #else 758 ; 759 #endif 760 pqh->hlink = sqh->hlink; 761 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 762 if (sc->sc_ctl_end == sqh) 763 sc->sc_ctl_end = pqh; 764 } 765 766 /* Add bulk QH, called at splusb(). */ 767 void 768 uhci_add_bulk(sc, sqh) 769 uhci_softc_t *sc; 770 uhci_soft_qh_t *sqh; 771 { 772 uhci_soft_qh_t *eqh; 773 774 SPLUSBCHECK; 775 776 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 777 eqh = sc->sc_bulk_end; 778 sqh->hlink = eqh->hlink; 779 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 780 eqh->hlink = sqh; 781 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 782 sc->sc_bulk_end = sqh; 783 } 784 785 /* Remove bulk QH, called at splusb(). */ 786 void 787 uhci_remove_bulk(sc, sqh) 788 uhci_softc_t *sc; 789 uhci_soft_qh_t *sqh; 790 { 791 uhci_soft_qh_t *pqh; 792 793 SPLUSBCHECK; 794 795 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 796 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 797 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 798 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 799 printf("uhci_remove_bulk: QH not found\n"); 800 return; 801 } 802 #else 803 ; 804 #endif 805 pqh->hlink = sqh->hlink; 806 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 807 if (sc->sc_bulk_end == sqh) 808 sc->sc_bulk_end = pqh; 809 } 810 811 int 812 uhci_intr(arg) 813 void *arg; 814 { 815 uhci_softc_t *sc = arg; 816 int status; 817 int ack; 818 uhci_intr_info_t *ii; 819 820 #if defined(USB_DEBUG) 821 if (uhcidebug > 15) { 822 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 823 uhci_dumpregs(sc); 824 } 825 #endif 826 827 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 828 if (sc->sc_suspend != PWR_RESUME) 829 printf("uhci_intr: suspended sts=0x%x\n", status); 830 #endif 831 832 status = UREAD2(sc, UHCI_STS); 833 ack = 0; 834 if (status & UHCI_STS_USBINT) 835 ack |= UHCI_STS_USBINT; 836 if (status & UHCI_STS_USBEI) 837 ack |= UHCI_STS_USBEI; 838 if (status & UHCI_STS_RD) { 839 ack |= UHCI_STS_RD; 840 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 841 } 842 if (status & UHCI_STS_HSE) { 843 ack |= UHCI_STS_HSE; 844 printf("%s: host controller process error\n", 845 USBDEVNAME(sc->sc_bus.bdev)); 846 } 847 if (status & UHCI_STS_HCPE) { 848 ack |= UHCI_STS_HCPE; 849 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 850 } 851 if (status & UHCI_STS_HCH) { 852 /* no acknowledge needed */ 853 printf("%s: host controller halted\n", 854 USBDEVNAME(sc->sc_bus.bdev)); 855 } 856 857 if (ack) /* acknowledge the ints */ 858 UWRITE2(sc, UHCI_STS, ack); 859 else /* nothing to acknowledge */ 860 return (0); 861 862 sc->sc_bus.intr_context++; 863 sc->sc_bus.no_intrs++; 864 865 /* 866 * Interrupts on UHCI really suck. When the host controller 867 * interrupts because a transfer is completed there is no 868 * way of knowing which transfer it was. You can scan down 869 * the TDs and QHs of the previous frame to limit the search, 870 * but that assumes that the interrupt was not delayed by more 871 * than 1 ms, which may not always be true (e.g. after debug 872 * output on a slow console). 873 * We scan all interrupt descriptors to see if any have 874 * completed. 875 */ 876 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 877 uhci_check_intr(sc, ii); 878 879 DPRINTFN(10, ("uhci_intr: exit\n")); 880 881 sc->sc_bus.intr_context--; 882 883 return (1); 884 } 885 886 /* Check for an interrupt. */ 887 void 888 uhci_check_intr(sc, ii) 889 uhci_softc_t *sc; 890 uhci_intr_info_t *ii; 891 { 892 uhci_soft_td_t *std, *lstd; 893 u_int32_t status; 894 895 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 896 #ifdef DIAGNOSTIC 897 if (!ii) { 898 printf("uhci_check_intr: no ii? %p\n", ii); 899 return; 900 } 901 #endif 902 if (!ii->stdstart) 903 return; 904 lstd = ii->stdend; 905 #ifdef DIAGNOSTIC 906 if (!lstd) { 907 printf("uhci_check_intr: std==0\n"); 908 return; 909 } 910 #endif 911 /* 912 * If the last TD is still active we need to check whether there 913 * is a an error somewhere in the middle, or whether there was a 914 * short packet (SPD and not ACTIVE). 915 */ 916 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 917 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 918 for (std = ii->stdstart; std != lstd; std = std->link.std) { 919 status = LE(std->td.td_status); 920 if ((status & UHCI_TD_STALLED) || 921 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 922 UHCI_TD_SPD) 923 goto done; 924 } 925 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 926 ii, ii->stdstart)); 927 return; 928 } 929 done: 930 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 931 uhci_idone(ii); 932 } 933 934 /* Called at splusb() */ 935 void 936 uhci_idone(ii) 937 uhci_intr_info_t *ii; 938 { 939 usbd_request_handle reqh = ii->reqh; 940 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 941 uhci_soft_td_t *std; 942 u_int32_t status; 943 int actlen; 944 945 #ifdef DIAGNOSTIC 946 { 947 int s = splhigh(); 948 if (ii->isdone) { 949 splx(s); 950 printf("uhci_idone: ii=%p is done!\n", ii); 951 return; 952 } 953 ii->isdone = 1; 954 splx(s); 955 } 956 #endif 957 958 if (reqh->status == USBD_CANCELLED || 959 reqh->status == USBD_TIMEOUT) { 960 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 961 return; 962 } 963 964 if (reqh->nframes) { 965 /* Isoc transfer, do things differently. */ 966 uhci_soft_td_t **stds = upipe->u.iso.stds; 967 int i, n, nframes; 968 969 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 970 971 nframes = reqh->nframes; 972 actlen = 0; 973 n = reqh->hcprivint; 974 for (i = 0; i < nframes; i++) { 975 std = stds[n]; 976 #ifdef USB_DEBUG 977 if (uhcidebug > 5) { 978 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 979 uhci_dump_td(std); 980 } 981 #endif 982 if (++n >= UHCI_VFRAMELIST_COUNT) 983 n = 0; 984 status = LE(std->td.td_status); 985 actlen += UHCI_TD_GET_ACTLEN(status); 986 } 987 upipe->u.iso.inuse -= nframes; 988 reqh->actlen = actlen; 989 reqh->status = USBD_NORMAL_COMPLETION; 990 reqh->hcpriv = ii; 991 usb_transfer_complete(reqh); 992 return; 993 } 994 995 #ifdef USB_DEBUG 996 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 997 if (uhcidebug > 10) 998 uhci_dump_tds(ii->stdstart); 999 #endif 1000 1001 /* The transfer is done, compute actual length and status. */ 1002 /* XXX Is this correct for control xfers? */ 1003 actlen = 0; 1004 for (std = ii->stdstart; std; std = std->link.std) { 1005 status = LE(std->td.td_status); 1006 if (status & UHCI_TD_ACTIVE) 1007 break; 1008 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1009 UHCI_TD_PID_SETUP) 1010 actlen += UHCI_TD_GET_ACTLEN(status); 1011 } 1012 /* If there are left over TDs we need to update the toggle. */ 1013 if (std) 1014 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1015 1016 status &= UHCI_TD_ERROR; 1017 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1018 actlen, status)); 1019 reqh->actlen = actlen; 1020 if (status != 0) { 1021 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1022 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1023 "status 0x%b\n", 1024 reqh->pipe->device->address, 1025 reqh->pipe->endpoint->edesc->bEndpointAddress, 1026 (int)status, 1027 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1028 "STALLED\30ACTIVE")); 1029 if (status == UHCI_TD_STALLED) 1030 reqh->status = USBD_STALLED; 1031 else 1032 reqh->status = USBD_IOERROR; /* more info XXX */ 1033 } else { 1034 reqh->status = USBD_NORMAL_COMPLETION; 1035 } 1036 reqh->hcpriv = ii; 1037 usb_transfer_complete(reqh); 1038 } 1039 1040 /* 1041 * Called when a request does not complete. 1042 */ 1043 void 1044 uhci_timeout(addr) 1045 void *addr; 1046 { 1047 uhci_intr_info_t *ii = addr; 1048 1049 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1050 1051 ii->reqh->device->bus->intr_context++; 1052 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 1053 ii->reqh->device->bus->intr_context--; 1054 } 1055 1056 /* 1057 * Wait here until controller claims to have an interrupt. 1058 * Then call uhci_intr and return. Use timeout to avoid waiting 1059 * too long. 1060 * Only used during boot when interrupts are not enabled yet. 1061 */ 1062 void 1063 uhci_waitintr(sc, reqh) 1064 uhci_softc_t *sc; 1065 usbd_request_handle reqh; 1066 { 1067 int timo = reqh->timeout; 1068 uhci_intr_info_t *ii; 1069 1070 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1071 1072 reqh->status = USBD_IN_PROGRESS; 1073 for (; timo >= 0; timo--) { 1074 usb_delay_ms(&sc->sc_bus, 1); 1075 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1076 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1077 uhci_intr(sc); 1078 if (reqh->status != USBD_IN_PROGRESS) 1079 return; 1080 } 1081 } 1082 1083 /* Timeout */ 1084 DPRINTF(("uhci_waitintr: timeout\n")); 1085 for (ii = LIST_FIRST(&sc->sc_intrhead); 1086 ii && ii->reqh != reqh; 1087 ii = LIST_NEXT(ii, list)) 1088 ; 1089 #ifdef DIAGNOSTIC 1090 if (!ii) 1091 panic("uhci_waitintr: lost intr_info\n"); 1092 #endif 1093 uhci_idone(ii); 1094 } 1095 1096 void 1097 uhci_poll(bus) 1098 struct usbd_bus *bus; 1099 { 1100 uhci_softc_t *sc = (uhci_softc_t *)bus; 1101 1102 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1103 uhci_intr(sc); 1104 } 1105 1106 #if 0 1107 void 1108 uhci_reset(p) 1109 void *p; 1110 { 1111 uhci_softc_t *sc = p; 1112 int n; 1113 1114 UHCICMD(sc, UHCI_CMD_HCRESET); 1115 /* The reset bit goes low when the controller is done. */ 1116 for (n = 0; n < UHCI_RESET_TIMEOUT && 1117 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1118 delay(100); 1119 if (n >= UHCI_RESET_TIMEOUT) 1120 printf("%s: controller did not reset\n", 1121 USBDEVNAME(sc->sc_bus.bdev)); 1122 } 1123 #endif 1124 1125 usbd_status 1126 uhci_run(sc, run) 1127 uhci_softc_t *sc; 1128 int run; 1129 { 1130 int s, n, running; 1131 1132 run = run != 0; 1133 s = splusb(); 1134 DPRINTF(("uhci_run: setting run=%d\n", run)); 1135 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1136 for(n = 0; n < 10; n++) { 1137 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1138 /* return when we've entered the state we want */ 1139 if (run == running) { 1140 splx(s); 1141 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1142 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1143 return (USBD_NORMAL_COMPLETION); 1144 } 1145 usb_delay_ms(&sc->sc_bus, 1); 1146 } 1147 splx(s); 1148 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1149 run ? "start" : "stop"); 1150 return (USBD_IOERROR); 1151 } 1152 1153 /* 1154 * Memory management routines. 1155 * uhci_alloc_std allocates TDs 1156 * uhci_alloc_sqh allocates QHs 1157 * These two routines do their own free list management, 1158 * partly for speed, partly because allocating DMAable memory 1159 * has page size granularaity so much memory would be wasted if 1160 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1161 */ 1162 1163 uhci_soft_td_t * 1164 uhci_alloc_std(sc) 1165 uhci_softc_t *sc; 1166 { 1167 uhci_soft_td_t *std; 1168 usbd_status r; 1169 int i, offs; 1170 usb_dma_t dma; 1171 1172 if (!sc->sc_freetds) { 1173 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1174 r = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1175 UHCI_TD_ALIGN, &dma); 1176 if (r != USBD_NORMAL_COMPLETION) 1177 return (0); 1178 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1179 offs = i * UHCI_STD_SIZE; 1180 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1181 std->physaddr = DMAADDR(&dma) + offs; 1182 std->link.std = sc->sc_freetds; 1183 sc->sc_freetds = std; 1184 } 1185 } 1186 std = sc->sc_freetds; 1187 sc->sc_freetds = std->link.std; 1188 memset(&std->td, 0, sizeof(uhci_td_t)); 1189 return std; 1190 } 1191 1192 void 1193 uhci_free_std(sc, std) 1194 uhci_softc_t *sc; 1195 uhci_soft_td_t *std; 1196 { 1197 #ifdef DIAGNOSTIC 1198 #define TD_IS_FREE 0x12345678 1199 if (LE(std->td.td_token) == TD_IS_FREE) { 1200 printf("uhci_free_std: freeing free TD %p\n", std); 1201 return; 1202 } 1203 std->td.td_token = LE(TD_IS_FREE); 1204 #endif 1205 std->link.std = sc->sc_freetds; 1206 sc->sc_freetds = std; 1207 } 1208 1209 uhci_soft_qh_t * 1210 uhci_alloc_sqh(sc) 1211 uhci_softc_t *sc; 1212 { 1213 uhci_soft_qh_t *sqh; 1214 usbd_status r; 1215 int i, offs; 1216 usb_dma_t dma; 1217 1218 if (!sc->sc_freeqhs) { 1219 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1220 r = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1221 UHCI_QH_ALIGN, &dma); 1222 if (r != USBD_NORMAL_COMPLETION) 1223 return 0; 1224 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1225 offs = i * UHCI_SQH_SIZE; 1226 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1227 sqh->physaddr = DMAADDR(&dma) + offs; 1228 sqh->hlink = sc->sc_freeqhs; 1229 sc->sc_freeqhs = sqh; 1230 } 1231 } 1232 sqh = sc->sc_freeqhs; 1233 sc->sc_freeqhs = sqh->hlink; 1234 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1235 return (sqh); 1236 } 1237 1238 void 1239 uhci_free_sqh(sc, sqh) 1240 uhci_softc_t *sc; 1241 uhci_soft_qh_t *sqh; 1242 { 1243 sqh->hlink = sc->sc_freeqhs; 1244 sc->sc_freeqhs = sqh; 1245 } 1246 1247 #if 0 1248 /* 1249 * Enter a list of transfers onto a control queue. 1250 * Called at splusb() 1251 */ 1252 void 1253 uhci_enter_ctl_q(sc, sqh, ii) 1254 uhci_softc_t *sc; 1255 uhci_soft_qh_t *sqh; 1256 uhci_intr_info_t *ii; 1257 { 1258 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1259 1260 } 1261 #endif 1262 1263 void 1264 uhci_free_std_chain(sc, std, stdend) 1265 uhci_softc_t *sc; 1266 uhci_soft_td_t *std; 1267 uhci_soft_td_t *stdend; 1268 { 1269 uhci_soft_td_t *p; 1270 1271 for (; std != stdend; std = p) { 1272 p = std->link.std; 1273 uhci_free_std(sc, std); 1274 } 1275 } 1276 1277 usbd_status 1278 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1279 struct uhci_pipe *upipe; 1280 uhci_softc_t *sc; 1281 int len, rd, shortok; 1282 usb_dma_t *dma; 1283 uhci_soft_td_t **sp, **ep; 1284 { 1285 uhci_soft_td_t *p, *lastp; 1286 uhci_physaddr_t lastlink; 1287 int i, ntd, l, tog, maxp; 1288 u_int32_t status; 1289 int addr = upipe->pipe.device->address; 1290 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1291 1292 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1293 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1294 upipe->pipe.device->lowspeed, shortok)); 1295 if (len == 0) { 1296 *sp = *ep = 0; 1297 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1298 return (USBD_NORMAL_COMPLETION); 1299 } 1300 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1301 if (maxp == 0) { 1302 printf("uhci_alloc_std_chain: maxp=0\n"); 1303 return (USBD_INVAL); 1304 } 1305 ntd = (len + maxp - 1) / maxp; 1306 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1307 tog = upipe->nexttoggle; 1308 if (ntd % 2 == 0) 1309 tog ^= 1; 1310 upipe->nexttoggle = tog ^ 1; 1311 lastp = 0; 1312 lastlink = UHCI_PTR_T; 1313 ntd--; 1314 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1315 if (upipe->pipe.device->lowspeed) 1316 status |= UHCI_TD_LS; 1317 if (shortok) 1318 status |= UHCI_TD_SPD; 1319 for (i = ntd; i >= 0; i--) { 1320 p = uhci_alloc_std(sc); 1321 if (!p) { 1322 uhci_free_std_chain(sc, lastp, 0); 1323 return (USBD_NOMEM); 1324 } 1325 p->link.std = lastp; 1326 p->td.td_link = LE(lastlink); 1327 lastp = p; 1328 lastlink = p->physaddr; 1329 p->td.td_status = LE(status); 1330 if (i == ntd) { 1331 /* last TD */ 1332 l = len % maxp; 1333 if (l == 0) l = maxp; 1334 *ep = p; 1335 } else 1336 l = maxp; 1337 p->td.td_token = 1338 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1339 UHCI_TD_OUT(l, endpt, addr, tog)); 1340 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1341 tog ^= 1; 1342 } 1343 *sp = lastp; 1344 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1345 upipe->nexttoggle)); 1346 return (USBD_NORMAL_COMPLETION); 1347 } 1348 1349 void 1350 uhci_device_clear_toggle(pipe) 1351 usbd_pipe_handle pipe; 1352 { 1353 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1354 upipe->nexttoggle = 0; 1355 } 1356 1357 void 1358 uhci_noop(pipe) 1359 usbd_pipe_handle pipe; 1360 { 1361 } 1362 1363 usbd_status 1364 uhci_device_bulk_transfer(reqh) 1365 usbd_request_handle reqh; 1366 { 1367 usbd_status r; 1368 1369 /* Insert last in queue. */ 1370 r = usb_insert_transfer(reqh); 1371 if (r != USBD_NORMAL_COMPLETION) 1372 return (r); 1373 1374 /* Pipe isn't running, start first */ 1375 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1376 } 1377 1378 usbd_status 1379 uhci_device_bulk_start(reqh) 1380 usbd_request_handle reqh; 1381 { 1382 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1383 usbd_device_handle dev = upipe->pipe.device; 1384 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1385 uhci_intr_info_t *ii = upipe->iinfo; 1386 uhci_soft_td_t *data, *dataend; 1387 uhci_soft_qh_t *sqh; 1388 usbd_status r; 1389 int len, isread, endpt; 1390 int s; 1391 1392 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1393 reqh, reqh->length, reqh->flags)); 1394 1395 #ifdef DIAGNOSTIC 1396 if (reqh->rqflags & URQ_REQUEST) 1397 panic("uhci_device_bulk_transfer: a request\n"); 1398 #endif 1399 1400 len = reqh->length; 1401 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1402 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1403 sqh = upipe->u.bulk.sqh; 1404 1405 upipe->u.bulk.isread = isread; 1406 upipe->u.bulk.length = len; 1407 1408 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1409 reqh->flags & USBD_SHORT_XFER_OK, 1410 &reqh->dmabuf, &data, &dataend); 1411 if (r != USBD_NORMAL_COMPLETION) 1412 return (r); 1413 dataend->td.td_status |= LE(UHCI_TD_IOC); 1414 1415 #ifdef USB_DEBUG 1416 if (uhcidebug > 8) { 1417 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1418 uhci_dump_tds(data); 1419 } 1420 #endif 1421 1422 /* Set up interrupt info. */ 1423 ii->reqh = reqh; 1424 ii->stdstart = data; 1425 ii->stdend = dataend; 1426 #ifdef DIAGNOSTIC 1427 ii->isdone = 0; 1428 #endif 1429 1430 sqh->elink = data; 1431 sqh->qh.qh_elink = LE(data->physaddr); 1432 sqh->intr_info = ii; 1433 1434 s = splusb(); 1435 uhci_add_bulk(sc, sqh); 1436 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1437 1438 if (reqh->timeout && !sc->sc_bus.use_polling) { 1439 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1440 ii->timeout_handle); 1441 } 1442 splx(s); 1443 1444 #ifdef USB_DEBUG 1445 if (uhcidebug > 10) { 1446 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1447 uhci_dump_tds(data); 1448 } 1449 #endif 1450 1451 if (sc->sc_bus.use_polling) 1452 uhci_waitintr(sc, reqh); 1453 1454 return (USBD_IN_PROGRESS); 1455 } 1456 1457 /* Abort a device bulk request. */ 1458 void 1459 uhci_device_bulk_abort(reqh) 1460 usbd_request_handle reqh; 1461 { 1462 DPRINTF(("uhci_device_bulk_abort:\n")); 1463 uhci_abort_req(reqh, USBD_CANCELLED); 1464 } 1465 1466 void 1467 uhci_abort_req(reqh, status) 1468 usbd_request_handle reqh; 1469 usbd_status status; 1470 { 1471 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1472 uhci_intr_info_t *ii = upipe->iinfo; 1473 uhci_soft_td_t *std; 1474 1475 /* Make interrupt routine ignore it, */ 1476 reqh->status = status; 1477 1478 /* don't timeout, */ 1479 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1480 1481 /* make hardware ignore it, */ 1482 for (std = ii->stdstart; std != 0; std = std->link.std) 1483 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1484 1485 reqh->hcpriv = ii; 1486 1487 /* make sure hardware has completed, */ 1488 if (reqh->device->bus->intr_context) { 1489 /* We have no process context, so we can't use tsleep(). */ 1490 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1491 } else { 1492 usb_delay_ms(reqh->pipe->device->bus, 1); 1493 /* and call final part of interrupt handler. */ 1494 uhci_abort_req_end(reqh); 1495 } 1496 } 1497 1498 void 1499 uhci_abort_req_end(v) 1500 void *v; 1501 { 1502 usbd_request_handle reqh = v; 1503 int s; 1504 1505 s = splusb(); 1506 usb_transfer_complete(reqh); 1507 splx(s); 1508 } 1509 1510 /* Close a device bulk pipe. */ 1511 void 1512 uhci_device_bulk_close(pipe) 1513 usbd_pipe_handle pipe; 1514 { 1515 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1516 usbd_device_handle dev = upipe->pipe.device; 1517 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1518 1519 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1520 uhci_free_intr_info(upipe->iinfo); 1521 /* XXX free other resources */ 1522 } 1523 1524 usbd_status 1525 uhci_device_ctrl_transfer(reqh) 1526 usbd_request_handle reqh; 1527 { 1528 usbd_status r; 1529 1530 /* Insert last in queue. */ 1531 r = usb_insert_transfer(reqh); 1532 if (r != USBD_NORMAL_COMPLETION) 1533 return (r); 1534 1535 /* Pipe isn't running, start first */ 1536 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1537 } 1538 1539 usbd_status 1540 uhci_device_ctrl_start(reqh) 1541 usbd_request_handle reqh; 1542 { 1543 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1544 usbd_status r; 1545 1546 #ifdef DIAGNOSTIC 1547 if (!(reqh->rqflags & URQ_REQUEST)) 1548 panic("uhci_device_ctrl_transfer: not a request\n"); 1549 #endif 1550 1551 r = uhci_device_request(reqh); 1552 if (r != USBD_NORMAL_COMPLETION) 1553 return (r); 1554 1555 if (sc->sc_bus.use_polling) 1556 uhci_waitintr(sc, reqh); 1557 return (USBD_IN_PROGRESS); 1558 } 1559 1560 usbd_status 1561 uhci_device_intr_transfer(reqh) 1562 usbd_request_handle reqh; 1563 { 1564 usbd_status r; 1565 1566 /* Insert last in queue. */ 1567 r = usb_insert_transfer(reqh); 1568 if (r != USBD_NORMAL_COMPLETION) 1569 return (r); 1570 1571 /* Pipe isn't running, start first */ 1572 return (uhci_device_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1573 } 1574 1575 usbd_status 1576 uhci_device_intr_start(reqh) 1577 usbd_request_handle reqh; 1578 { 1579 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1580 usbd_device_handle dev = upipe->pipe.device; 1581 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1582 uhci_intr_info_t *ii = upipe->iinfo; 1583 uhci_soft_td_t *data, *dataend; 1584 uhci_soft_qh_t *sqh; 1585 usbd_status r; 1586 int i, s; 1587 1588 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1589 reqh, reqh->length, reqh->flags)); 1590 1591 #ifdef DIAGNOSTIC 1592 if (reqh->rqflags & URQ_REQUEST) 1593 panic("uhci_device_intr_transfer: a request\n"); 1594 #endif 1595 1596 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1597 reqh->flags & USBD_SHORT_XFER_OK, 1598 &reqh->dmabuf, &data, &dataend); 1599 if (r != USBD_NORMAL_COMPLETION) 1600 return (r); 1601 dataend->td.td_status |= LE(UHCI_TD_IOC); 1602 1603 #ifdef USB_DEBUG 1604 if (uhcidebug > 10) { 1605 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1606 uhci_dump_tds(data); 1607 uhci_dump_qh(upipe->u.intr.qhs[0]); 1608 } 1609 #endif 1610 1611 s = splusb(); 1612 /* Set up interrupt info. */ 1613 ii->reqh = reqh; 1614 ii->stdstart = data; 1615 ii->stdend = dataend; 1616 #ifdef DIAGNOSTIC 1617 ii->isdone = 0; 1618 #endif 1619 1620 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1621 upipe->u.intr.qhs[0])); 1622 for (i = 0; i < upipe->u.intr.npoll; i++) { 1623 sqh = upipe->u.intr.qhs[i]; 1624 sqh->elink = data; 1625 sqh->qh.qh_elink = LE(data->physaddr); 1626 } 1627 splx(s); 1628 1629 #ifdef USB_DEBUG 1630 if (uhcidebug > 10) { 1631 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1632 uhci_dump_tds(data); 1633 uhci_dump_qh(upipe->u.intr.qhs[0]); 1634 } 1635 #endif 1636 1637 return (USBD_IN_PROGRESS); 1638 } 1639 1640 /* Abort a device control request. */ 1641 void 1642 uhci_device_ctrl_abort(reqh) 1643 usbd_request_handle reqh; 1644 { 1645 DPRINTF(("uhci_device_ctrl_abort:\n")); 1646 uhci_abort_req(reqh, USBD_CANCELLED); 1647 } 1648 1649 /* Close a device control pipe. */ 1650 void 1651 uhci_device_ctrl_close(pipe) 1652 usbd_pipe_handle pipe; 1653 { 1654 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1655 1656 uhci_free_intr_info(upipe->iinfo); 1657 /* XXX free other resources */ 1658 } 1659 1660 /* Abort a device interrupt request. */ 1661 void 1662 uhci_device_intr_abort(reqh) 1663 usbd_request_handle reqh; 1664 { 1665 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1666 if (reqh->pipe->intrreqh == reqh) { 1667 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1668 reqh->pipe->intrreqh = 0; 1669 } 1670 uhci_abort_req(reqh, USBD_CANCELLED); 1671 } 1672 1673 /* Close a device interrupt pipe. */ 1674 void 1675 uhci_device_intr_close(pipe) 1676 usbd_pipe_handle pipe; 1677 { 1678 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1679 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1680 int i, s, npoll; 1681 1682 upipe->iinfo->stdstart = 0; /* inactive */ 1683 1684 /* Unlink descriptors from controller data structures. */ 1685 npoll = upipe->u.intr.npoll; 1686 uhci_lock_frames(sc); 1687 for (i = 0; i < npoll; i++) 1688 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1689 upipe->u.intr.qhs[i]); 1690 uhci_unlock_frames(sc); 1691 1692 /* 1693 * We now have to wait for any activity on the physical 1694 * descriptors to stop. 1695 */ 1696 usb_delay_ms(&sc->sc_bus, 2); 1697 1698 for(i = 0; i < npoll; i++) 1699 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1700 free(upipe->u.intr.qhs, M_USBHC); 1701 1702 s = splusb(); 1703 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1704 splx(s); 1705 uhci_free_intr_info(upipe->iinfo); 1706 1707 /* XXX free other resources */ 1708 } 1709 1710 usbd_status 1711 uhci_device_request(reqh) 1712 usbd_request_handle reqh; 1713 { 1714 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1715 usb_device_request_t *req = &reqh->request; 1716 usbd_device_handle dev = upipe->pipe.device; 1717 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1718 int addr = dev->address; 1719 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1720 uhci_intr_info_t *ii = upipe->iinfo; 1721 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1722 uhci_soft_qh_t *sqh; 1723 int len; 1724 u_int32_t ls; 1725 usbd_status r; 1726 int isread; 1727 int s; 1728 1729 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1730 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1731 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1732 UGETW(req->wIndex), UGETW(req->wLength), 1733 addr, endpt)); 1734 1735 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1736 isread = req->bmRequestType & UT_READ; 1737 len = UGETW(req->wLength); 1738 1739 setup = upipe->u.ctl.setup; 1740 stat = upipe->u.ctl.stat; 1741 sqh = upipe->u.ctl.sqh; 1742 1743 /* Set up data transaction */ 1744 if (len != 0) { 1745 upipe->nexttoggle = 1; 1746 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1747 reqh->flags & USBD_SHORT_XFER_OK, 1748 &reqh->dmabuf, &data, &dataend); 1749 if (r != USBD_NORMAL_COMPLETION) 1750 return (r); 1751 next = data; 1752 dataend->link.std = stat; 1753 dataend->td.td_link = LE(stat->physaddr); 1754 } else { 1755 next = stat; 1756 } 1757 upipe->u.ctl.length = len; 1758 1759 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1760 1761 setup->link.std = next; 1762 setup->td.td_link = LE(next->physaddr); 1763 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1764 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1765 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1766 1767 stat->link.std = 0; 1768 stat->td.td_link = LE(UHCI_PTR_T); 1769 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1770 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1771 stat->td.td_token = 1772 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1773 UHCI_TD_IN (0, endpt, addr, 1)); 1774 stat->td.td_buffer = LE(0); 1775 1776 #ifdef USB_DEBUG 1777 if (uhcidebug > 20) { 1778 DPRINTF(("uhci_device_request: before transfer\n")); 1779 uhci_dump_tds(setup); 1780 } 1781 #endif 1782 1783 /* Set up interrupt info. */ 1784 ii->reqh = reqh; 1785 ii->stdstart = setup; 1786 ii->stdend = stat; 1787 #ifdef DIAGNOSTIC 1788 ii->isdone = 0; 1789 #endif 1790 1791 sqh->elink = setup; 1792 sqh->qh.qh_elink = LE(setup->physaddr); 1793 sqh->intr_info = ii; 1794 1795 s = splusb(); 1796 uhci_add_ctrl(sc, sqh); 1797 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1798 #ifdef USB_DEBUG 1799 if (uhcidebug > 12) { 1800 uhci_soft_td_t *std; 1801 uhci_soft_qh_t *xqh; 1802 uhci_soft_qh_t *sxqh; 1803 int maxqh = 0; 1804 uhci_physaddr_t link; 1805 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1806 for (std = sc->sc_vframes[0].htd, link = 0; 1807 (link & UHCI_PTR_Q) == 0; 1808 std = std->link.std) { 1809 link = LE(std->td.td_link); 1810 uhci_dump_td(std); 1811 } 1812 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1813 xqh; 1814 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1815 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1816 uhci_dump_qh(xqh); 1817 uhci_dump_qh(sxqh); 1818 } 1819 DPRINTF(("Enqueued QH:\n")); 1820 uhci_dump_qh(sqh); 1821 uhci_dump_tds(sqh->elink); 1822 } 1823 #endif 1824 if (reqh->timeout && !sc->sc_bus.use_polling) { 1825 usb_timeout(uhci_timeout, ii, 1826 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1827 } 1828 splx(s); 1829 1830 return (USBD_NORMAL_COMPLETION); 1831 } 1832 1833 usbd_status 1834 uhci_device_isoc_transfer(reqh) 1835 usbd_request_handle reqh; 1836 { 1837 usbd_status r; 1838 1839 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1840 1841 /* Put it on our queue, */ 1842 r = usb_insert_transfer(reqh); 1843 1844 /* bail out on error, */ 1845 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1846 return (r); 1847 1848 /* XXX should check inuse here */ 1849 1850 /* insert into schedule, */ 1851 uhci_device_isoc_enter(reqh); 1852 1853 /* and put on interrupt list if the pipe wasn't running */ 1854 if (r == USBD_NORMAL_COMPLETION) 1855 uhci_device_isoc_start(SIMPLEQ_FIRST(&reqh->pipe->queue)); 1856 1857 return (r); 1858 } 1859 1860 void 1861 uhci_device_isoc_enter(reqh) 1862 usbd_request_handle reqh; 1863 { 1864 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1865 usbd_device_handle dev = upipe->pipe.device; 1866 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1867 struct iso *iso = &upipe->u.iso; 1868 uhci_soft_td_t *std; 1869 u_int32_t buf, len, status; 1870 int s, i, next, nframes; 1871 1872 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1873 "nframes=%d\n", 1874 iso->inuse, iso->next, reqh, reqh->nframes)); 1875 1876 if (reqh->status == USBD_IN_PROGRESS) { 1877 /* This request has already been entered into the frame list */ 1878 } 1879 1880 #ifdef DIAGNOSTIC 1881 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1882 printf("uhci_device_isoc_enter: overflow!\n"); 1883 #endif 1884 1885 next = iso->next; 1886 if (next == -1) { 1887 /* Not in use yet, schedule it a few frames ahead. */ 1888 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1889 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1890 } 1891 1892 reqh->status = USBD_IN_PROGRESS; 1893 reqh->hcprivint = next; 1894 1895 buf = DMAADDR(&reqh->dmabuf); 1896 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1897 UHCI_TD_ACTIVE | 1898 UHCI_TD_IOS)); 1899 nframes = reqh->nframes; 1900 s = splusb(); 1901 for (i = 0; i < nframes; i++) { 1902 std = iso->stds[next]; 1903 if (++next >= UHCI_VFRAMELIST_COUNT) 1904 next = 0; 1905 len = reqh->frlengths[i]; 1906 std->td.td_buffer = LE(buf); 1907 if (i == nframes - 1) 1908 status |= LE(UHCI_TD_IOC); 1909 std->td.td_status = status; 1910 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1911 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1912 #ifdef USB_DEBUG 1913 if (uhcidebug > 5) { 1914 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1915 uhci_dump_td(std); 1916 } 1917 #endif 1918 buf += len; 1919 } 1920 iso->next = next; 1921 iso->inuse += reqh->nframes; 1922 1923 splx(s); 1924 } 1925 1926 usbd_status 1927 uhci_device_isoc_start(reqh) 1928 usbd_request_handle reqh; 1929 { 1930 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1931 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1932 uhci_intr_info_t *ii = upipe->iinfo; 1933 uhci_soft_td_t *end; 1934 int s, i; 1935 1936 #ifdef DIAGNOSTIC 1937 if (reqh->status != USBD_IN_PROGRESS) 1938 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1939 #endif 1940 1941 /* Find the last TD */ 1942 i = reqh->hcprivint + reqh->nframes; 1943 if (i >= UHCI_VFRAMELIST_COUNT) 1944 i -= UHCI_VFRAMELIST_COUNT; 1945 end = upipe->u.iso.stds[i]; 1946 1947 s = splusb(); 1948 1949 /* Set up interrupt info. */ 1950 ii->reqh = reqh; 1951 ii->stdstart = end; 1952 ii->stdend = end; 1953 #ifdef DIAGNOSTIC 1954 ii->isdone = 0; 1955 #endif 1956 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1957 1958 splx(s); 1959 1960 return (USBD_IN_PROGRESS); 1961 } 1962 1963 void 1964 uhci_device_isoc_abort(reqh) 1965 usbd_request_handle reqh; 1966 { 1967 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1968 uhci_intr_info_t *ii = upipe->iinfo; 1969 uhci_soft_td_t **stds = upipe->u.iso.stds; 1970 uhci_soft_td_t *std; 1971 int i, n, nframes; 1972 1973 /* Make interrupt routine ignore it, */ 1974 reqh->status = USBD_CANCELLED; 1975 1976 /* make hardware ignore it, */ 1977 nframes = reqh->nframes; 1978 n = reqh->hcprivint; 1979 for (i = 0; i < nframes; i++) { 1980 std = stds[n]; 1981 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1982 if (++n >= UHCI_VFRAMELIST_COUNT) 1983 n = 0; 1984 } 1985 1986 reqh->hcpriv = ii; 1987 1988 /* make sure hardware has completed, */ 1989 if (reqh->device->bus->intr_context) { 1990 /* We have no process context, so we can't use tsleep(). */ 1991 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1992 } else { 1993 usb_delay_ms(reqh->pipe->device->bus, 1); 1994 /* and call final part of interrupt handler. */ 1995 uhci_abort_req_end(reqh); 1996 } 1997 } 1998 1999 void 2000 uhci_device_isoc_close(pipe) 2001 usbd_pipe_handle pipe; 2002 { 2003 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2004 usbd_device_handle dev = upipe->pipe.device; 2005 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2006 uhci_soft_td_t *std, *vstd; 2007 struct iso *iso; 2008 int i; 2009 2010 /* 2011 * Make sure all TDs are marked as inactive. 2012 * Wait for completion. 2013 * Unschedule. 2014 * Deallocate. 2015 */ 2016 iso = &upipe->u.iso; 2017 2018 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2019 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2020 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2021 2022 uhci_lock_frames(sc); 2023 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2024 std = iso->stds[i]; 2025 for (vstd = sc->sc_vframes[i].htd; 2026 vstd && vstd->link.std != std; 2027 vstd = vstd->link.std) 2028 ; 2029 if (!vstd) { 2030 /*panic*/ 2031 printf("uhci_device_isoc_close: %p not found\n", std); 2032 uhci_unlock_frames(sc); 2033 return; 2034 } 2035 vstd->link = std->link; 2036 vstd->td.td_link = std->td.td_link; 2037 uhci_free_std(sc, std); 2038 } 2039 uhci_unlock_frames(sc); 2040 2041 free(iso->stds, M_USBHC); 2042 } 2043 2044 usbd_status 2045 uhci_setup_isoc(pipe) 2046 usbd_pipe_handle pipe; 2047 { 2048 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2049 usbd_device_handle dev = upipe->pipe.device; 2050 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2051 int addr = upipe->pipe.device->address; 2052 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2053 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2054 uhci_soft_td_t *std, *vstd; 2055 u_int32_t token; 2056 struct iso *iso; 2057 int i; 2058 2059 iso = &upipe->u.iso; 2060 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2061 M_USBHC, M_WAITOK); 2062 2063 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2064 UHCI_TD_OUT(0, endpt, addr, 0)); 2065 2066 /* Allocate the TDs and mark as inactive; */ 2067 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2068 std = uhci_alloc_std(sc); 2069 if (std == 0) 2070 goto bad; 2071 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2072 std->td.td_token = token; 2073 iso->stds[i] = std; 2074 } 2075 2076 /* Insert TDs into schedule. */ 2077 uhci_lock_frames(sc); 2078 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2079 std = iso->stds[i]; 2080 vstd = sc->sc_vframes[i].htd; 2081 std->link = vstd->link; 2082 std->td.td_link = vstd->td.td_link; 2083 vstd->link.std = std; 2084 vstd->td.td_link = LE(std->physaddr); 2085 } 2086 uhci_unlock_frames(sc); 2087 2088 iso->next = -1; 2089 iso->inuse = 0; 2090 2091 return (USBD_NORMAL_COMPLETION); 2092 2093 bad: 2094 while (--i >= 0) 2095 uhci_free_std(sc, iso->stds[i]); 2096 free(iso->stds, M_USBHC); 2097 return (USBD_NOMEM); 2098 } 2099 2100 void 2101 uhci_device_isoc_done(reqh) 2102 usbd_request_handle reqh; 2103 { 2104 uhci_intr_info_t *ii = reqh->hcpriv; 2105 2106 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2107 2108 /* Turn off the interrupt since it is active even if the TD is not. */ 2109 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2110 2111 LIST_REMOVE(ii, list); /* remove from active list */ 2112 } 2113 2114 void 2115 uhci_device_intr_done(reqh) 2116 usbd_request_handle reqh; 2117 { 2118 uhci_intr_info_t *ii = reqh->hcpriv; 2119 uhci_softc_t *sc = ii->sc; 2120 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2121 uhci_soft_qh_t *sqh; 2122 int i, npoll; 2123 2124 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2125 2126 npoll = upipe->u.intr.npoll; 2127 for(i = 0; i < npoll; i++) { 2128 sqh = upipe->u.intr.qhs[i]; 2129 sqh->elink = 0; 2130 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2131 } 2132 uhci_free_std_chain(sc, ii->stdstart, 0); 2133 2134 /* XXX Wasteful. */ 2135 if (reqh->pipe->repeat) { 2136 uhci_soft_td_t *data, *dataend; 2137 2138 /* This alloc cannot fail since we freed the chain above. */ 2139 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2140 reqh->flags & USBD_SHORT_XFER_OK, 2141 &reqh->dmabuf, &data, &dataend); 2142 dataend->td.td_status |= LE(UHCI_TD_IOC); 2143 2144 #ifdef USB_DEBUG 2145 if (uhcidebug > 10) { 2146 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2147 uhci_dump_tds(data); 2148 uhci_dump_qh(upipe->u.intr.qhs[0]); 2149 } 2150 #endif 2151 2152 ii->stdstart = data; 2153 ii->stdend = dataend; 2154 #ifdef DIAGNOSTIC 2155 ii->isdone = 0; 2156 #endif 2157 for (i = 0; i < npoll; i++) { 2158 sqh = upipe->u.intr.qhs[i]; 2159 sqh->elink = data; 2160 sqh->qh.qh_elink = LE(data->physaddr); 2161 } 2162 } else { 2163 ii->stdstart = 0; /* mark as inactive */ 2164 } 2165 } 2166 2167 /* Deallocate request data structures */ 2168 void 2169 uhci_device_ctrl_done(reqh) 2170 usbd_request_handle reqh; 2171 { 2172 uhci_intr_info_t *ii = reqh->hcpriv; 2173 uhci_softc_t *sc = ii->sc; 2174 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2175 2176 #ifdef DIAGNOSTIC 2177 if (!(reqh->rqflags & URQ_REQUEST)) 2178 panic("uhci_ctrl_done: not a request\n"); 2179 #endif 2180 2181 LIST_REMOVE(ii, list); /* remove from active list */ 2182 2183 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2184 2185 if (upipe->u.ctl.length != 0) 2186 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2187 2188 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2189 } 2190 2191 /* Deallocate request data structures */ 2192 void 2193 uhci_device_bulk_done(reqh) 2194 usbd_request_handle reqh; 2195 { 2196 uhci_intr_info_t *ii = reqh->hcpriv; 2197 uhci_softc_t *sc = ii->sc; 2198 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2199 2200 LIST_REMOVE(ii, list); /* remove from active list */ 2201 2202 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2203 2204 uhci_free_std_chain(sc, ii->stdstart, 0); 2205 2206 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2207 } 2208 2209 /* Add interrupt QH, called with vflock. */ 2210 void 2211 uhci_add_intr(sc, n, sqh) 2212 uhci_softc_t *sc; 2213 int n; 2214 uhci_soft_qh_t *sqh; 2215 { 2216 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2217 uhci_soft_qh_t *eqh; 2218 2219 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2220 eqh = vf->eqh; 2221 sqh->hlink = eqh->hlink; 2222 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2223 eqh->hlink = sqh; 2224 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2225 vf->eqh = sqh; 2226 vf->bandwidth++; 2227 } 2228 2229 /* Remove interrupt QH, called with vflock. */ 2230 void 2231 uhci_remove_intr(sc, n, sqh) 2232 uhci_softc_t *sc; 2233 int n; 2234 uhci_soft_qh_t *sqh; 2235 { 2236 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2237 uhci_soft_qh_t *pqh; 2238 2239 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2240 2241 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2242 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2243 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2244 DPRINTF(("uhci_remove_intr: QH not found\n")); 2245 return; 2246 } 2247 #else 2248 ; 2249 #endif 2250 pqh->hlink = sqh->hlink; 2251 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2252 if (vf->eqh == sqh) 2253 vf->eqh = pqh; 2254 vf->bandwidth--; 2255 } 2256 2257 usbd_status 2258 uhci_device_setintr(sc, upipe, ival) 2259 uhci_softc_t *sc; 2260 struct uhci_pipe *upipe; 2261 int ival; 2262 { 2263 uhci_soft_qh_t *sqh; 2264 int i, npoll, s; 2265 u_int bestbw, bw, bestoffs, offs; 2266 2267 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2268 if (ival == 0) { 2269 printf("uhci_setintr: 0 interval\n"); 2270 return (USBD_INVAL); 2271 } 2272 2273 if (ival > UHCI_VFRAMELIST_COUNT) 2274 ival = UHCI_VFRAMELIST_COUNT; 2275 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2276 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2277 2278 upipe->u.intr.npoll = npoll; 2279 upipe->u.intr.qhs = 2280 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2281 2282 /* 2283 * Figure out which offset in the schedule that has most 2284 * bandwidth left over. 2285 */ 2286 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2287 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2288 for (bw = i = 0; i < npoll; i++) 2289 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2290 if (bw < bestbw) { 2291 bestbw = bw; 2292 bestoffs = offs; 2293 } 2294 } 2295 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2296 2297 upipe->iinfo->stdstart = 0; 2298 for(i = 0; i < npoll; i++) { 2299 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2300 sqh->elink = 0; 2301 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2302 sqh->pos = MOD(i * ival + bestoffs); 2303 sqh->intr_info = upipe->iinfo; 2304 } 2305 #undef MOD 2306 2307 s = splusb(); 2308 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2309 splx(s); 2310 2311 uhci_lock_frames(sc); 2312 /* Enter QHs into the controller data structures. */ 2313 for(i = 0; i < npoll; i++) 2314 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2315 upipe->u.intr.qhs[i]); 2316 uhci_unlock_frames(sc); 2317 2318 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2319 return (USBD_NORMAL_COMPLETION); 2320 } 2321 2322 /* Open a new pipe. */ 2323 usbd_status 2324 uhci_open(pipe) 2325 usbd_pipe_handle pipe; 2326 { 2327 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2328 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2329 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2330 usbd_status r; 2331 2332 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2333 pipe, pipe->device->address, 2334 ed->bEndpointAddress, sc->sc_addr)); 2335 if (pipe->device->address == sc->sc_addr) { 2336 switch (ed->bEndpointAddress) { 2337 case USB_CONTROL_ENDPOINT: 2338 pipe->methods = &uhci_root_ctrl_methods; 2339 break; 2340 case UE_DIR_IN | UHCI_INTR_ENDPT: 2341 pipe->methods = &uhci_root_intr_methods; 2342 break; 2343 default: 2344 return (USBD_INVAL); 2345 } 2346 } else { 2347 upipe->iinfo = uhci_alloc_intr_info(sc); 2348 if (upipe->iinfo == 0) 2349 return (USBD_NOMEM); 2350 switch (ed->bmAttributes & UE_XFERTYPE) { 2351 case UE_CONTROL: 2352 pipe->methods = &uhci_device_ctrl_methods; 2353 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2354 if (upipe->u.ctl.sqh == 0) 2355 goto bad; 2356 upipe->u.ctl.setup = uhci_alloc_std(sc); 2357 if (upipe->u.ctl.setup == 0) { 2358 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2359 goto bad; 2360 } 2361 upipe->u.ctl.stat = uhci_alloc_std(sc); 2362 if (upipe->u.ctl.stat == 0) { 2363 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2364 uhci_free_std(sc, upipe->u.ctl.setup); 2365 goto bad; 2366 } 2367 r = usb_allocmem(&sc->sc_bus, 2368 sizeof(usb_device_request_t), 2369 0, &upipe->u.ctl.reqdma); 2370 if (r != USBD_NORMAL_COMPLETION) { 2371 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2372 uhci_free_std(sc, upipe->u.ctl.setup); 2373 uhci_free_std(sc, upipe->u.ctl.stat); 2374 goto bad; 2375 } 2376 break; 2377 case UE_INTERRUPT: 2378 pipe->methods = &uhci_device_intr_methods; 2379 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2380 case UE_ISOCHRONOUS: 2381 pipe->methods = &uhci_device_isoc_methods; 2382 return (uhci_setup_isoc(pipe)); 2383 case UE_BULK: 2384 pipe->methods = &uhci_device_bulk_methods; 2385 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2386 if (upipe->u.bulk.sqh == 0) 2387 goto bad; 2388 break; 2389 } 2390 } 2391 return (USBD_NORMAL_COMPLETION); 2392 2393 bad: 2394 uhci_free_intr_info(upipe->iinfo); 2395 return (USBD_NOMEM); 2396 } 2397 2398 /* 2399 * Data structures and routines to emulate the root hub. 2400 */ 2401 usb_device_descriptor_t uhci_devd = { 2402 USB_DEVICE_DESCRIPTOR_SIZE, 2403 UDESC_DEVICE, /* type */ 2404 {0x00, 0x01}, /* USB version */ 2405 UCLASS_HUB, /* class */ 2406 USUBCLASS_HUB, /* subclass */ 2407 0, /* protocol */ 2408 64, /* max packet */ 2409 {0},{0},{0x00,0x01}, /* device id */ 2410 1,2,0, /* string indicies */ 2411 1 /* # of configurations */ 2412 }; 2413 2414 usb_config_descriptor_t uhci_confd = { 2415 USB_CONFIG_DESCRIPTOR_SIZE, 2416 UDESC_CONFIG, 2417 {USB_CONFIG_DESCRIPTOR_SIZE + 2418 USB_INTERFACE_DESCRIPTOR_SIZE + 2419 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2420 1, 2421 1, 2422 0, 2423 UC_SELF_POWERED, 2424 0 /* max power */ 2425 }; 2426 2427 usb_interface_descriptor_t uhci_ifcd = { 2428 USB_INTERFACE_DESCRIPTOR_SIZE, 2429 UDESC_INTERFACE, 2430 0, 2431 0, 2432 1, 2433 UCLASS_HUB, 2434 USUBCLASS_HUB, 2435 0, 2436 0 2437 }; 2438 2439 usb_endpoint_descriptor_t uhci_endpd = { 2440 USB_ENDPOINT_DESCRIPTOR_SIZE, 2441 UDESC_ENDPOINT, 2442 UE_DIR_IN | UHCI_INTR_ENDPT, 2443 UE_INTERRUPT, 2444 {8}, 2445 255 2446 }; 2447 2448 usb_hub_descriptor_t uhci_hubd_piix = { 2449 USB_HUB_DESCRIPTOR_SIZE, 2450 UDESC_HUB, 2451 2, 2452 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2453 50, /* power on to power good */ 2454 0, 2455 { 0x00 }, /* both ports are removable */ 2456 }; 2457 2458 int 2459 uhci_str(p, l, s) 2460 usb_string_descriptor_t *p; 2461 int l; 2462 char *s; 2463 { 2464 int i; 2465 2466 if (l == 0) 2467 return (0); 2468 p->bLength = 2 * strlen(s) + 2; 2469 if (l == 1) 2470 return (1); 2471 p->bDescriptorType = UDESC_STRING; 2472 l -= 2; 2473 for (i = 0; s[i] && l > 1; i++, l -= 2) 2474 USETW2(p->bString[i], 0, s[i]); 2475 return (2*i+2); 2476 } 2477 2478 /* 2479 * Simulate a hardware hub by handling all the necessary requests. 2480 */ 2481 usbd_status 2482 uhci_root_ctrl_transfer(reqh) 2483 usbd_request_handle reqh; 2484 { 2485 usbd_status r; 2486 2487 /* Insert last in queue. */ 2488 r = usb_insert_transfer(reqh); 2489 if (r != USBD_NORMAL_COMPLETION) 2490 return (r); 2491 2492 /* Pipe isn't running, start first */ 2493 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2494 } 2495 2496 usbd_status 2497 uhci_root_ctrl_start(reqh) 2498 usbd_request_handle reqh; 2499 { 2500 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2501 usb_device_request_t *req; 2502 void *buf; 2503 int port, x; 2504 int s, len, value, index, status, change, l, totlen = 0; 2505 usb_port_status_t ps; 2506 usbd_status r; 2507 2508 #ifdef DIAGNOSTIC 2509 if (!(reqh->rqflags & URQ_REQUEST)) 2510 panic("uhci_root_ctrl_transfer: not a request\n"); 2511 #endif 2512 req = &reqh->request; 2513 2514 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2515 req->bmRequestType, req->bRequest)); 2516 2517 len = UGETW(req->wLength); 2518 value = UGETW(req->wValue); 2519 index = UGETW(req->wIndex); 2520 2521 if (len != 0) 2522 buf = KERNADDR(&reqh->dmabuf); 2523 #ifdef DIAGNOSTIC 2524 else 2525 buf = 0; 2526 #endif 2527 2528 #define C(x,y) ((x) | ((y) << 8)) 2529 switch(C(req->bRequest, req->bmRequestType)) { 2530 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2531 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2532 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2533 /* 2534 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2535 * for the integrated root hub. 2536 */ 2537 break; 2538 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2539 if (len > 0) { 2540 *(u_int8_t *)buf = sc->sc_conf; 2541 totlen = 1; 2542 } 2543 break; 2544 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2545 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2546 switch(value >> 8) { 2547 case UDESC_DEVICE: 2548 if ((value & 0xff) != 0) { 2549 r = USBD_IOERROR; 2550 goto ret; 2551 } 2552 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2553 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2554 memcpy(buf, &uhci_devd, l); 2555 break; 2556 case UDESC_CONFIG: 2557 if ((value & 0xff) != 0) { 2558 r = USBD_IOERROR; 2559 goto ret; 2560 } 2561 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2562 memcpy(buf, &uhci_confd, l); 2563 buf = (char *)buf + l; 2564 len -= l; 2565 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2566 totlen += l; 2567 memcpy(buf, &uhci_ifcd, l); 2568 buf = (char *)buf + l; 2569 len -= l; 2570 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2571 totlen += l; 2572 memcpy(buf, &uhci_endpd, l); 2573 break; 2574 case UDESC_STRING: 2575 if (len == 0) 2576 break; 2577 *(u_int8_t *)buf = 0; 2578 totlen = 1; 2579 switch (value & 0xff) { 2580 case 1: /* Vendor */ 2581 totlen = uhci_str(buf, len, sc->sc_vendor); 2582 break; 2583 case 2: /* Product */ 2584 totlen = uhci_str(buf, len, "UHCI root hub"); 2585 break; 2586 } 2587 break; 2588 default: 2589 r = USBD_IOERROR; 2590 goto ret; 2591 } 2592 break; 2593 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2594 if (len > 0) { 2595 *(u_int8_t *)buf = 0; 2596 totlen = 1; 2597 } 2598 break; 2599 case C(UR_GET_STATUS, UT_READ_DEVICE): 2600 if (len > 1) { 2601 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2602 totlen = 2; 2603 } 2604 break; 2605 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2606 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2607 if (len > 1) { 2608 USETW(((usb_status_t *)buf)->wStatus, 0); 2609 totlen = 2; 2610 } 2611 break; 2612 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2613 if (value >= USB_MAX_DEVICES) { 2614 r = USBD_IOERROR; 2615 goto ret; 2616 } 2617 sc->sc_addr = value; 2618 break; 2619 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2620 if (value != 0 && value != 1) { 2621 r = USBD_IOERROR; 2622 goto ret; 2623 } 2624 sc->sc_conf = value; 2625 break; 2626 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2627 break; 2628 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2629 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2630 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2631 r = USBD_IOERROR; 2632 goto ret; 2633 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2634 break; 2635 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2636 break; 2637 /* Hub requests */ 2638 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2639 break; 2640 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2641 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2642 "port=%d feature=%d\n", 2643 index, value)); 2644 if (index == 1) 2645 port = UHCI_PORTSC1; 2646 else if (index == 2) 2647 port = UHCI_PORTSC2; 2648 else { 2649 r = USBD_IOERROR; 2650 goto ret; 2651 } 2652 switch(value) { 2653 case UHF_PORT_ENABLE: 2654 x = UREAD2(sc, port); 2655 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2656 break; 2657 case UHF_PORT_SUSPEND: 2658 x = UREAD2(sc, port); 2659 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2660 break; 2661 case UHF_PORT_RESET: 2662 x = UREAD2(sc, port); 2663 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2664 break; 2665 case UHF_C_PORT_CONNECTION: 2666 x = UREAD2(sc, port); 2667 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2668 break; 2669 case UHF_C_PORT_ENABLE: 2670 x = UREAD2(sc, port); 2671 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2672 break; 2673 case UHF_C_PORT_OVER_CURRENT: 2674 x = UREAD2(sc, port); 2675 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2676 break; 2677 case UHF_C_PORT_RESET: 2678 sc->sc_isreset = 0; 2679 r = USBD_NORMAL_COMPLETION; 2680 goto ret; 2681 case UHF_PORT_CONNECTION: 2682 case UHF_PORT_OVER_CURRENT: 2683 case UHF_PORT_POWER: 2684 case UHF_PORT_LOW_SPEED: 2685 case UHF_C_PORT_SUSPEND: 2686 default: 2687 r = USBD_IOERROR; 2688 goto ret; 2689 } 2690 break; 2691 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2692 if (index == 1) 2693 port = UHCI_PORTSC1; 2694 else if (index == 2) 2695 port = UHCI_PORTSC2; 2696 else { 2697 r = USBD_IOERROR; 2698 goto ret; 2699 } 2700 if (len > 0) { 2701 *(u_int8_t *)buf = 2702 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2703 UHCI_PORTSC_LS_SHIFT; 2704 totlen = 1; 2705 } 2706 break; 2707 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2708 if (value != 0) { 2709 r = USBD_IOERROR; 2710 goto ret; 2711 } 2712 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2713 totlen = l; 2714 memcpy(buf, &uhci_hubd_piix, l); 2715 break; 2716 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2717 if (len != 4) { 2718 r = USBD_IOERROR; 2719 goto ret; 2720 } 2721 memset(buf, 0, len); 2722 totlen = len; 2723 break; 2724 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2725 if (index == 1) 2726 port = UHCI_PORTSC1; 2727 else if (index == 2) 2728 port = UHCI_PORTSC2; 2729 else { 2730 r = USBD_IOERROR; 2731 goto ret; 2732 } 2733 if (len != 4) { 2734 r = USBD_IOERROR; 2735 goto ret; 2736 } 2737 x = UREAD2(sc, port); 2738 status = change = 0; 2739 if (x & UHCI_PORTSC_CCS ) 2740 status |= UPS_CURRENT_CONNECT_STATUS; 2741 if (x & UHCI_PORTSC_CSC ) 2742 change |= UPS_C_CONNECT_STATUS; 2743 if (x & UHCI_PORTSC_PE ) 2744 status |= UPS_PORT_ENABLED; 2745 if (x & UHCI_PORTSC_POEDC) 2746 change |= UPS_C_PORT_ENABLED; 2747 if (x & UHCI_PORTSC_OCI ) 2748 status |= UPS_OVERCURRENT_INDICATOR; 2749 if (x & UHCI_PORTSC_OCIC ) 2750 change |= UPS_C_OVERCURRENT_INDICATOR; 2751 if (x & UHCI_PORTSC_SUSP ) 2752 status |= UPS_SUSPEND; 2753 if (x & UHCI_PORTSC_LSDA ) 2754 status |= UPS_LOW_SPEED; 2755 status |= UPS_PORT_POWER; 2756 if (sc->sc_isreset) 2757 change |= UPS_C_PORT_RESET; 2758 USETW(ps.wPortStatus, status); 2759 USETW(ps.wPortChange, change); 2760 l = min(len, sizeof ps); 2761 memcpy(buf, &ps, l); 2762 totlen = l; 2763 break; 2764 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2765 r = USBD_IOERROR; 2766 goto ret; 2767 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2768 break; 2769 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2770 if (index == 1) 2771 port = UHCI_PORTSC1; 2772 else if (index == 2) 2773 port = UHCI_PORTSC2; 2774 else { 2775 r = USBD_IOERROR; 2776 goto ret; 2777 } 2778 switch(value) { 2779 case UHF_PORT_ENABLE: 2780 x = UREAD2(sc, port); 2781 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2782 break; 2783 case UHF_PORT_SUSPEND: 2784 x = UREAD2(sc, port); 2785 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2786 break; 2787 case UHF_PORT_RESET: 2788 x = UREAD2(sc, port); 2789 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2790 usb_delay_ms(&sc->sc_bus, 10); 2791 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2792 delay(100); 2793 x = UREAD2(sc, port); 2794 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2795 delay(100); 2796 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2797 index, UREAD2(sc, port))); 2798 sc->sc_isreset = 1; 2799 break; 2800 case UHF_C_PORT_CONNECTION: 2801 case UHF_C_PORT_ENABLE: 2802 case UHF_C_PORT_OVER_CURRENT: 2803 case UHF_PORT_CONNECTION: 2804 case UHF_PORT_OVER_CURRENT: 2805 case UHF_PORT_POWER: 2806 case UHF_PORT_LOW_SPEED: 2807 case UHF_C_PORT_SUSPEND: 2808 case UHF_C_PORT_RESET: 2809 default: 2810 r = USBD_IOERROR; 2811 goto ret; 2812 } 2813 break; 2814 default: 2815 r = USBD_IOERROR; 2816 goto ret; 2817 } 2818 reqh->actlen = totlen; 2819 r = USBD_NORMAL_COMPLETION; 2820 ret: 2821 reqh->status = r; 2822 reqh->hcpriv = 0; 2823 s = splusb(); 2824 usb_transfer_complete(reqh); 2825 splx(s); 2826 return (USBD_IN_PROGRESS); 2827 } 2828 2829 /* Abort a root control request. */ 2830 void 2831 uhci_root_ctrl_abort(reqh) 2832 usbd_request_handle reqh; 2833 { 2834 /* Nothing to do, all transfers are syncronous. */ 2835 } 2836 2837 /* Close the root pipe. */ 2838 void 2839 uhci_root_ctrl_close(pipe) 2840 usbd_pipe_handle pipe; 2841 { 2842 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2843 2844 sc->sc_has_timo = 0; 2845 DPRINTF(("uhci_root_ctrl_close\n")); 2846 } 2847 2848 /* Abort a root interrupt request. */ 2849 void 2850 uhci_root_intr_abort(reqh) 2851 usbd_request_handle reqh; 2852 { 2853 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2854 2855 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2856 sc->sc_has_timo = 0; 2857 } 2858 2859 usbd_status 2860 uhci_root_intr_transfer(reqh) 2861 usbd_request_handle reqh; 2862 { 2863 usbd_status r; 2864 2865 /* Insert last in queue. */ 2866 r = usb_insert_transfer(reqh); 2867 if (r != USBD_NORMAL_COMPLETION) 2868 return (r); 2869 2870 /* Pipe isn't running, start first */ 2871 return (uhci_root_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2872 } 2873 2874 /* Start a transfer on the root interrupt pipe */ 2875 usbd_status 2876 uhci_root_intr_start(reqh) 2877 usbd_request_handle reqh; 2878 { 2879 usbd_pipe_handle pipe = reqh->pipe; 2880 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2881 2882 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2883 reqh, reqh->length, reqh->flags)); 2884 2885 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2886 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2887 sc->sc_has_timo = reqh; 2888 return (USBD_IN_PROGRESS); 2889 } 2890 2891 /* Close the root interrupt pipe. */ 2892 void 2893 uhci_root_intr_close(pipe) 2894 usbd_pipe_handle pipe; 2895 { 2896 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2897 2898 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2899 sc->sc_has_timo = 0; 2900 DPRINTF(("uhci_root_intr_close\n")); 2901 } 2902 2903
Indexes created Mon Sep 22 13:09:51 GMT 2025