uhci.c revision 1.57
1 /* $NetBSD: uhci.c,v 1.57 1999/10/12 11:21:26 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(sc, flags) 442 struct uhci_softc *sc; 443 int flags; 444 { 445 int rv = 0; 446 447 if (sc->sc_child != NULL) 448 rv = config_detach(sc->sc_child, flags); 449 450 if (rv != 0) 451 return (rv); 452 453 powerhook_disestablish(sc->sc_powerhook); 454 /* free data structures XXX */ 455 456 return (rv); 457 } 458 459 usbd_status 460 uhci_allocm(bus, dma, size) 461 struct usbd_bus *bus; 462 usb_dma_t *dma; 463 u_int32_t size; 464 { 465 struct uhci_softc *sc = (struct uhci_softc *)bus; 466 467 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 468 } 469 470 void 471 uhci_freem(bus, dma) 472 struct usbd_bus *bus; 473 usb_dma_t *dma; 474 { 475 struct uhci_softc *sc = (struct uhci_softc *)bus; 476 477 usb_freemem(&sc->sc_bus, dma); 478 } 479 480 #if !defined(__OpenBSD__) 481 /* 482 * Handle suspend/resume. 483 * 484 * We need to switch to polling mode here, because this routine is 485 * called from an intterupt context. This is all right since we 486 * are almost suspended anyway. 487 */ 488 void 489 uhci_power(why, v) 490 int why; 491 void *v; 492 { 493 uhci_softc_t *sc = v; 494 int cmd; 495 int s; 496 497 s = splusb(); 498 cmd = UREAD2(sc, UHCI_CMD); 499 500 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 501 sc, why, sc->sc_suspend, cmd)); 502 503 if (why != PWR_RESUME) { 504 #if defined(USB_DEBUG) 505 if (uhcidebug > 2) 506 uhci_dumpregs(sc); 507 #endif 508 if (sc->sc_has_timo) 509 usb_untimeout(uhci_timo, sc->sc_has_timo, 510 sc->sc_has_timo->timo_handle); 511 sc->sc_bus.use_polling++; 512 uhci_run(sc, 0); /* stop the controller */ 513 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 514 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 515 sc->sc_suspend = why; 516 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 517 } else { 518 /* 519 * XXX We should really do much more here in case the 520 * controller registers have been lost and BIOS has 521 * not restored them. 522 */ 523 sc->sc_suspend = why; 524 if (cmd & UHCI_CMD_RS) 525 uhci_run(sc, 0); /* in case BIOS has started it */ 526 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 527 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 528 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 529 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 530 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 531 uhci_run(sc, 1); /* and start traffic again */ 532 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 533 sc->sc_bus.use_polling--; 534 if (sc->sc_has_timo) 535 usb_timeout(uhci_timo, sc->sc_has_timo, 536 sc->sc_ival, sc->sc_has_timo->timo_handle); 537 #if defined(USB_DEBUG) 538 if (uhcidebug > 2) 539 uhci_dumpregs(sc); 540 #endif 541 } 542 splx(s); 543 } 544 #endif /* !defined(__OpenBSD__) */ 545 546 #ifdef USB_DEBUG 547 static void 548 uhci_dumpregs(sc) 549 uhci_softc_t *sc; 550 { 551 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 552 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 553 USBDEVNAME(sc->sc_bus.bdev), 554 UREAD2(sc, UHCI_CMD), 555 UREAD2(sc, UHCI_STS), 556 UREAD2(sc, UHCI_INTR), 557 UREAD2(sc, UHCI_FRNUM), 558 UREAD4(sc, UHCI_FLBASEADDR), 559 UREAD1(sc, UHCI_SOF), 560 UREAD2(sc, UHCI_PORTSC1), 561 UREAD2(sc, UHCI_PORTSC2))); 562 } 563 564 void 565 uhci_dump_td(p) 566 uhci_soft_td_t *p; 567 { 568 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 569 "token=0x%08lx buffer=0x%08lx\n", 570 p, (long)p->physaddr, 571 (long)LE(p->td.td_link), 572 (long)LE(p->td.td_status), 573 (long)LE(p->td.td_token), 574 (long)LE(p->td.td_buffer))); 575 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 576 "D=%d,maxlen=%d\n", 577 (int)LE(p->td.td_link), 578 "\20\1T\2Q\3VF", 579 (int)LE(p->td.td_status), 580 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 581 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 582 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 583 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 584 UHCI_TD_GET_PID(LE(p->td.td_token)), 585 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 586 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 587 UHCI_TD_GET_DT(LE(p->td.td_token)), 588 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 589 } 590 591 void 592 uhci_dump_qh(p) 593 uhci_soft_qh_t *p; 594 { 595 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 596 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 597 } 598 599 600 #if 0 601 void 602 uhci_dump() 603 { 604 uhci_softc_t *sc = uhci; 605 606 uhci_dumpregs(sc); 607 printf("intrs=%d\n", sc->sc_bus.no_intrs); 608 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 609 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 610 } 611 #endif 612 613 void 614 uhci_dump_tds(std) 615 uhci_soft_td_t *std; 616 { 617 uhci_soft_td_t *p; 618 619 for(p = std; p; p = p->link.std) 620 uhci_dump_td(p); 621 } 622 #endif 623 624 /* 625 * This routine is executed periodically and simulates interrupts 626 * from the root controller interrupt pipe for port status change. 627 */ 628 void 629 uhci_timo(addr) 630 void *addr; 631 { 632 usbd_request_handle reqh = addr; 633 usbd_pipe_handle pipe = reqh->pipe; 634 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 635 int s; 636 u_char *p; 637 638 DPRINTFN(15, ("uhci_timo\n")); 639 640 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 641 642 p = KERNADDR(&reqh->dmabuf); 643 p[0] = 0; 644 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 645 p[0] |= 1<<1; 646 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 647 p[0] |= 1<<2; 648 if (p[0] == 0) 649 /* No change, try again in a while */ 650 return; 651 652 reqh->actlen = 1; 653 reqh->status = USBD_NORMAL_COMPLETION; 654 s = splusb(); 655 reqh->hcpriv = 0; 656 reqh->device->bus->intr_context++; 657 usb_transfer_complete(reqh); 658 reqh->device->bus->intr_context--; 659 splx(s); 660 } 661 662 void 663 uhci_root_intr_done(reqh) 664 usbd_request_handle reqh; 665 { 666 } 667 668 669 void 670 uhci_lock_frames(sc) 671 uhci_softc_t *sc; 672 { 673 int s = splusb(); 674 while (sc->sc_vflock) { 675 sc->sc_vflock |= UHCI_WANT_LOCK; 676 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 677 } 678 sc->sc_vflock = UHCI_HAS_LOCK; 679 splx(s); 680 } 681 682 void 683 uhci_unlock_frames(sc) 684 uhci_softc_t *sc; 685 { 686 int s = splusb(); 687 sc->sc_vflock &= ~UHCI_HAS_LOCK; 688 if (sc->sc_vflock & UHCI_WANT_LOCK) 689 wakeup(&sc->sc_vflock); 690 splx(s); 691 } 692 693 /* 694 * Allocate an interrupt information struct. A free list is kept 695 * for fast allocation. 696 */ 697 uhci_intr_info_t * 698 uhci_alloc_intr_info(sc) 699 uhci_softc_t *sc; 700 { 701 uhci_intr_info_t *ii; 702 703 ii = LIST_FIRST(&uhci_ii_free); 704 if (ii) 705 LIST_REMOVE(ii, list); 706 else { 707 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 708 } 709 ii->sc = sc; 710 return ii; 711 } 712 713 void 714 uhci_free_intr_info(ii) 715 uhci_intr_info_t *ii; 716 { 717 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 718 } 719 720 /* Add control QH, called at splusb(). */ 721 void 722 uhci_add_ctrl(sc, sqh) 723 uhci_softc_t *sc; 724 uhci_soft_qh_t *sqh; 725 { 726 uhci_soft_qh_t *eqh; 727 728 SPLUSBCHECK; 729 730 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 731 eqh = sc->sc_ctl_end; 732 sqh->hlink = eqh->hlink; 733 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 734 eqh->hlink = sqh; 735 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 736 sc->sc_ctl_end = sqh; 737 } 738 739 /* Remove control QH, called at splusb(). */ 740 void 741 uhci_remove_ctrl(sc, sqh) 742 uhci_softc_t *sc; 743 uhci_soft_qh_t *sqh; 744 { 745 uhci_soft_qh_t *pqh; 746 747 SPLUSBCHECK; 748 749 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 750 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 751 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 752 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 753 printf("uhci_remove_ctrl: QH not found\n"); 754 return; 755 } 756 #else 757 ; 758 #endif 759 pqh->hlink = sqh->hlink; 760 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 761 if (sc->sc_ctl_end == sqh) 762 sc->sc_ctl_end = pqh; 763 } 764 765 /* Add bulk QH, called at splusb(). */ 766 void 767 uhci_add_bulk(sc, sqh) 768 uhci_softc_t *sc; 769 uhci_soft_qh_t *sqh; 770 { 771 uhci_soft_qh_t *eqh; 772 773 SPLUSBCHECK; 774 775 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 776 eqh = sc->sc_bulk_end; 777 sqh->hlink = eqh->hlink; 778 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 779 eqh->hlink = sqh; 780 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 781 sc->sc_bulk_end = sqh; 782 } 783 784 /* Remove bulk QH, called at splusb(). */ 785 void 786 uhci_remove_bulk(sc, sqh) 787 uhci_softc_t *sc; 788 uhci_soft_qh_t *sqh; 789 { 790 uhci_soft_qh_t *pqh; 791 792 SPLUSBCHECK; 793 794 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 795 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 796 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 797 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 798 printf("uhci_remove_bulk: QH not found\n"); 799 return; 800 } 801 #else 802 ; 803 #endif 804 pqh->hlink = sqh->hlink; 805 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 806 if (sc->sc_bulk_end == sqh) 807 sc->sc_bulk_end = pqh; 808 } 809 810 int 811 uhci_intr(arg) 812 void *arg; 813 { 814 uhci_softc_t *sc = arg; 815 int status; 816 int ack; 817 uhci_intr_info_t *ii; 818 819 #if defined(USB_DEBUG) 820 if (uhcidebug > 15) { 821 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 822 uhci_dumpregs(sc); 823 } 824 #endif 825 826 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 827 if (sc->sc_suspend != PWR_RESUME) 828 printf("uhci_intr: suspended sts=0x%x\n", status); 829 #endif 830 831 status = UREAD2(sc, UHCI_STS); 832 ack = 0; 833 if (status & UHCI_STS_USBINT) 834 ack |= UHCI_STS_USBINT; 835 if (status & UHCI_STS_USBEI) 836 ack |= UHCI_STS_USBEI; 837 if (status & UHCI_STS_RD) { 838 ack |= UHCI_STS_RD; 839 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 840 } 841 if (status & UHCI_STS_HSE) { 842 ack |= UHCI_STS_HSE; 843 printf("%s: host controller process error\n", 844 USBDEVNAME(sc->sc_bus.bdev)); 845 } 846 if (status & UHCI_STS_HCPE) { 847 ack |= UHCI_STS_HCPE; 848 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 849 } 850 if (status & UHCI_STS_HCH) { 851 /* no acknowledge needed */ 852 printf("%s: host controller halted\n", 853 USBDEVNAME(sc->sc_bus.bdev)); 854 } 855 856 if (ack) /* acknowledge the ints */ 857 UWRITE2(sc, UHCI_STS, ack); 858 else /* nothing to acknowledge */ 859 return (0); 860 861 sc->sc_bus.intr_context++; 862 sc->sc_bus.no_intrs++; 863 864 /* 865 * Interrupts on UHCI really suck. When the host controller 866 * interrupts because a transfer is completed there is no 867 * way of knowing which transfer it was. You can scan down 868 * the TDs and QHs of the previous frame to limit the search, 869 * but that assumes that the interrupt was not delayed by more 870 * than 1 ms, which may not always be true (e.g. after debug 871 * output on a slow console). 872 * We scan all interrupt descriptors to see if any have 873 * completed. 874 */ 875 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 876 uhci_check_intr(sc, ii); 877 878 DPRINTFN(10, ("uhci_intr: exit\n")); 879 880 sc->sc_bus.intr_context--; 881 882 return (1); 883 } 884 885 /* Check for an interrupt. */ 886 void 887 uhci_check_intr(sc, ii) 888 uhci_softc_t *sc; 889 uhci_intr_info_t *ii; 890 { 891 uhci_soft_td_t *std, *lstd; 892 u_int32_t status; 893 894 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 895 #ifdef DIAGNOSTIC 896 if (!ii) { 897 printf("uhci_check_intr: no ii? %p\n", ii); 898 return; 899 } 900 #endif 901 if (!ii->stdstart) 902 return; 903 lstd = ii->stdend; 904 #ifdef DIAGNOSTIC 905 if (!lstd) { 906 printf("uhci_check_intr: std==0\n"); 907 return; 908 } 909 #endif 910 /* 911 * If the last TD is still active we need to check whether there 912 * is a an error somewhere in the middle, or whether there was a 913 * short packet (SPD and not ACTIVE). 914 */ 915 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 916 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 917 for (std = ii->stdstart; std != lstd; std = std->link.std) { 918 status = LE(std->td.td_status); 919 if ((status & UHCI_TD_STALLED) || 920 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 921 UHCI_TD_SPD) 922 goto done; 923 } 924 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 925 ii, ii->stdstart)); 926 return; 927 } 928 done: 929 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 930 uhci_idone(ii); 931 } 932 933 /* Called at splusb() */ 934 void 935 uhci_idone(ii) 936 uhci_intr_info_t *ii; 937 { 938 usbd_request_handle reqh = ii->reqh; 939 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 940 uhci_soft_td_t *std; 941 u_int32_t status; 942 int actlen; 943 944 #ifdef DIAGNOSTIC 945 { 946 int s = splhigh(); 947 if (ii->isdone) { 948 splx(s); 949 printf("uhci_idone: ii=%p is done!\n", ii); 950 return; 951 } 952 ii->isdone = 1; 953 splx(s); 954 } 955 #endif 956 957 if (reqh->status == USBD_CANCELLED || 958 reqh->status == USBD_TIMEOUT) { 959 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 960 return; 961 } 962 963 if (reqh->nframes) { 964 /* Isoc transfer, do things differently. */ 965 uhci_soft_td_t **stds = upipe->u.iso.stds; 966 int i, n, nframes; 967 968 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 969 970 nframes = reqh->nframes; 971 actlen = 0; 972 n = reqh->hcprivint; 973 for (i = 0; i < nframes; i++) { 974 std = stds[n]; 975 #ifdef USB_DEBUG 976 if (uhcidebug > 5) { 977 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 978 uhci_dump_td(std); 979 } 980 #endif 981 if (++n >= UHCI_VFRAMELIST_COUNT) 982 n = 0; 983 status = LE(std->td.td_status); 984 actlen += UHCI_TD_GET_ACTLEN(status); 985 } 986 upipe->u.iso.inuse -= nframes; 987 reqh->actlen = actlen; 988 reqh->status = USBD_NORMAL_COMPLETION; 989 reqh->hcpriv = ii; 990 usb_transfer_complete(reqh); 991 return; 992 } 993 994 #ifdef USB_DEBUG 995 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 996 if (uhcidebug > 10) 997 uhci_dump_tds(ii->stdstart); 998 #endif 999 1000 /* The transfer is done, compute actual length and status. */ 1001 /* XXX Is this correct for control xfers? */ 1002 actlen = 0; 1003 for (std = ii->stdstart; std; std = std->link.std) { 1004 status = LE(std->td.td_status); 1005 if (status & UHCI_TD_ACTIVE) 1006 break; 1007 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1008 UHCI_TD_PID_SETUP) 1009 actlen += UHCI_TD_GET_ACTLEN(status); 1010 } 1011 /* If there are left over TDs we need to update the toggle. */ 1012 if (std) 1013 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1014 1015 status &= UHCI_TD_ERROR; 1016 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1017 actlen, status)); 1018 reqh->actlen = actlen; 1019 if (status != 0) { 1020 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1021 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1022 "status 0x%b\n", 1023 reqh->pipe->device->address, 1024 reqh->pipe->endpoint->edesc->bEndpointAddress, 1025 (int)status, 1026 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1027 "STALLED\30ACTIVE")); 1028 if (status == UHCI_TD_STALLED) 1029 reqh->status = USBD_STALLED; 1030 else 1031 reqh->status = USBD_IOERROR; /* more info XXX */ 1032 } else { 1033 reqh->status = USBD_NORMAL_COMPLETION; 1034 } 1035 reqh->hcpriv = ii; 1036 usb_transfer_complete(reqh); 1037 } 1038 1039 /* 1040 * Called when a request does not complete. 1041 */ 1042 void 1043 uhci_timeout(addr) 1044 void *addr; 1045 { 1046 uhci_intr_info_t *ii = addr; 1047 1048 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1049 1050 ii->reqh->device->bus->intr_context++; 1051 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 1052 ii->reqh->device->bus->intr_context--; 1053 } 1054 1055 /* 1056 * Wait here until controller claims to have an interrupt. 1057 * Then call uhci_intr and return. Use timeout to avoid waiting 1058 * too long. 1059 * Only used during boot when interrupts are not enabled yet. 1060 */ 1061 void 1062 uhci_waitintr(sc, reqh) 1063 uhci_softc_t *sc; 1064 usbd_request_handle reqh; 1065 { 1066 int timo = reqh->timeout; 1067 uhci_intr_info_t *ii; 1068 1069 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1070 1071 reqh->status = USBD_IN_PROGRESS; 1072 for (; timo >= 0; timo--) { 1073 usb_delay_ms(&sc->sc_bus, 1); 1074 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1075 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1076 uhci_intr(sc); 1077 if (reqh->status != USBD_IN_PROGRESS) 1078 return; 1079 } 1080 } 1081 1082 /* Timeout */ 1083 DPRINTF(("uhci_waitintr: timeout\n")); 1084 for (ii = LIST_FIRST(&sc->sc_intrhead); 1085 ii && ii->reqh != reqh; 1086 ii = LIST_NEXT(ii, list)) 1087 ; 1088 #ifdef DIAGNOSTIC 1089 if (!ii) 1090 panic("uhci_waitintr: lost intr_info\n"); 1091 #endif 1092 uhci_idone(ii); 1093 } 1094 1095 void 1096 uhci_poll(bus) 1097 struct usbd_bus *bus; 1098 { 1099 uhci_softc_t *sc = (uhci_softc_t *)bus; 1100 1101 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1102 uhci_intr(sc); 1103 } 1104 1105 #if 0 1106 void 1107 uhci_reset(p) 1108 void *p; 1109 { 1110 uhci_softc_t *sc = p; 1111 int n; 1112 1113 UHCICMD(sc, UHCI_CMD_HCRESET); 1114 /* The reset bit goes low when the controller is done. */ 1115 for (n = 0; n < UHCI_RESET_TIMEOUT && 1116 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1117 delay(100); 1118 if (n >= UHCI_RESET_TIMEOUT) 1119 printf("%s: controller did not reset\n", 1120 USBDEVNAME(sc->sc_bus.bdev)); 1121 } 1122 #endif 1123 1124 usbd_status 1125 uhci_run(sc, run) 1126 uhci_softc_t *sc; 1127 int run; 1128 { 1129 int s, n, running; 1130 1131 run = run != 0; 1132 s = splusb(); 1133 DPRINTF(("uhci_run: setting run=%d\n", run)); 1134 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1135 for(n = 0; n < 10; n++) { 1136 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1137 /* return when we've entered the state we want */ 1138 if (run == running) { 1139 splx(s); 1140 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1141 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1142 return (USBD_NORMAL_COMPLETION); 1143 } 1144 usb_delay_ms(&sc->sc_bus, 1); 1145 } 1146 splx(s); 1147 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1148 run ? "start" : "stop"); 1149 return (USBD_IOERROR); 1150 } 1151 1152 /* 1153 * Memory management routines. 1154 * uhci_alloc_std allocates TDs 1155 * uhci_alloc_sqh allocates QHs 1156 * These two routines do their own free list management, 1157 * partly for speed, partly because allocating DMAable memory 1158 * has page size granularaity so much memory would be wasted if 1159 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1160 */ 1161 1162 uhci_soft_td_t * 1163 uhci_alloc_std(sc) 1164 uhci_softc_t *sc; 1165 { 1166 uhci_soft_td_t *std; 1167 usbd_status r; 1168 int i, offs; 1169 usb_dma_t dma; 1170 1171 if (!sc->sc_freetds) { 1172 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1173 r = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1174 UHCI_TD_ALIGN, &dma); 1175 if (r != USBD_NORMAL_COMPLETION) 1176 return (0); 1177 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1178 offs = i * UHCI_STD_SIZE; 1179 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1180 std->physaddr = DMAADDR(&dma) + offs; 1181 std->link.std = sc->sc_freetds; 1182 sc->sc_freetds = std; 1183 } 1184 } 1185 std = sc->sc_freetds; 1186 sc->sc_freetds = std->link.std; 1187 memset(&std->td, 0, sizeof(uhci_td_t)); 1188 return std; 1189 } 1190 1191 void 1192 uhci_free_std(sc, std) 1193 uhci_softc_t *sc; 1194 uhci_soft_td_t *std; 1195 { 1196 #ifdef DIAGNOSTIC 1197 #define TD_IS_FREE 0x12345678 1198 if (LE(std->td.td_token) == TD_IS_FREE) { 1199 printf("uhci_free_std: freeing free TD %p\n", std); 1200 return; 1201 } 1202 std->td.td_token = LE(TD_IS_FREE); 1203 #endif 1204 std->link.std = sc->sc_freetds; 1205 sc->sc_freetds = std; 1206 } 1207 1208 uhci_soft_qh_t * 1209 uhci_alloc_sqh(sc) 1210 uhci_softc_t *sc; 1211 { 1212 uhci_soft_qh_t *sqh; 1213 usbd_status r; 1214 int i, offs; 1215 usb_dma_t dma; 1216 1217 if (!sc->sc_freeqhs) { 1218 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1219 r = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1220 UHCI_QH_ALIGN, &dma); 1221 if (r != USBD_NORMAL_COMPLETION) 1222 return 0; 1223 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1224 offs = i * UHCI_SQH_SIZE; 1225 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1226 sqh->physaddr = DMAADDR(&dma) + offs; 1227 sqh->hlink = sc->sc_freeqhs; 1228 sc->sc_freeqhs = sqh; 1229 } 1230 } 1231 sqh = sc->sc_freeqhs; 1232 sc->sc_freeqhs = sqh->hlink; 1233 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1234 return (sqh); 1235 } 1236 1237 void 1238 uhci_free_sqh(sc, sqh) 1239 uhci_softc_t *sc; 1240 uhci_soft_qh_t *sqh; 1241 { 1242 sqh->hlink = sc->sc_freeqhs; 1243 sc->sc_freeqhs = sqh; 1244 } 1245 1246 #if 0 1247 /* 1248 * Enter a list of transfers onto a control queue. 1249 * Called at splusb() 1250 */ 1251 void 1252 uhci_enter_ctl_q(sc, sqh, ii) 1253 uhci_softc_t *sc; 1254 uhci_soft_qh_t *sqh; 1255 uhci_intr_info_t *ii; 1256 { 1257 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1258 1259 } 1260 #endif 1261 1262 void 1263 uhci_free_std_chain(sc, std, stdend) 1264 uhci_softc_t *sc; 1265 uhci_soft_td_t *std; 1266 uhci_soft_td_t *stdend; 1267 { 1268 uhci_soft_td_t *p; 1269 1270 for (; std != stdend; std = p) { 1271 p = std->link.std; 1272 uhci_free_std(sc, std); 1273 } 1274 } 1275 1276 usbd_status 1277 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1278 struct uhci_pipe *upipe; 1279 uhci_softc_t *sc; 1280 int len, rd, shortok; 1281 usb_dma_t *dma; 1282 uhci_soft_td_t **sp, **ep; 1283 { 1284 uhci_soft_td_t *p, *lastp; 1285 uhci_physaddr_t lastlink; 1286 int i, ntd, l, tog, maxp; 1287 u_int32_t status; 1288 int addr = upipe->pipe.device->address; 1289 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1290 1291 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1292 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1293 upipe->pipe.device->lowspeed, shortok)); 1294 if (len == 0) { 1295 *sp = *ep = 0; 1296 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1297 return (USBD_NORMAL_COMPLETION); 1298 } 1299 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1300 if (maxp == 0) { 1301 printf("uhci_alloc_std_chain: maxp=0\n"); 1302 return (USBD_INVAL); 1303 } 1304 ntd = (len + maxp - 1) / maxp; 1305 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1306 tog = upipe->nexttoggle; 1307 if (ntd % 2 == 0) 1308 tog ^= 1; 1309 upipe->nexttoggle = tog ^ 1; 1310 lastp = 0; 1311 lastlink = UHCI_PTR_T; 1312 ntd--; 1313 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1314 if (upipe->pipe.device->lowspeed) 1315 status |= UHCI_TD_LS; 1316 if (shortok) 1317 status |= UHCI_TD_SPD; 1318 for (i = ntd; i >= 0; i--) { 1319 p = uhci_alloc_std(sc); 1320 if (!p) { 1321 uhci_free_std_chain(sc, lastp, 0); 1322 return (USBD_NOMEM); 1323 } 1324 p->link.std = lastp; 1325 p->td.td_link = LE(lastlink); 1326 lastp = p; 1327 lastlink = p->physaddr; 1328 p->td.td_status = LE(status); 1329 if (i == ntd) { 1330 /* last TD */ 1331 l = len % maxp; 1332 if (l == 0) l = maxp; 1333 *ep = p; 1334 } else 1335 l = maxp; 1336 p->td.td_token = 1337 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1338 UHCI_TD_OUT(l, endpt, addr, tog)); 1339 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1340 tog ^= 1; 1341 } 1342 *sp = lastp; 1343 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1344 upipe->nexttoggle)); 1345 return (USBD_NORMAL_COMPLETION); 1346 } 1347 1348 void 1349 uhci_device_clear_toggle(pipe) 1350 usbd_pipe_handle pipe; 1351 { 1352 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1353 upipe->nexttoggle = 0; 1354 } 1355 1356 void 1357 uhci_noop(pipe) 1358 usbd_pipe_handle pipe; 1359 { 1360 } 1361 1362 usbd_status 1363 uhci_device_bulk_transfer(reqh) 1364 usbd_request_handle reqh; 1365 { 1366 usbd_status r; 1367 1368 /* Insert last in queue. */ 1369 r = usb_insert_transfer(reqh); 1370 if (r != USBD_NORMAL_COMPLETION) 1371 return (r); 1372 1373 /* Pipe isn't running, start first */ 1374 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1375 } 1376 1377 usbd_status 1378 uhci_device_bulk_start(reqh) 1379 usbd_request_handle reqh; 1380 { 1381 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1382 usbd_device_handle dev = upipe->pipe.device; 1383 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1384 uhci_intr_info_t *ii = upipe->iinfo; 1385 uhci_soft_td_t *data, *dataend; 1386 uhci_soft_qh_t *sqh; 1387 usbd_status r; 1388 int len, isread, endpt; 1389 int s; 1390 1391 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1392 reqh, reqh->length, reqh->flags)); 1393 1394 #ifdef DIAGNOSTIC 1395 if (reqh->rqflags & URQ_REQUEST) 1396 panic("uhci_device_bulk_transfer: a request\n"); 1397 #endif 1398 1399 len = reqh->length; 1400 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1401 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1402 sqh = upipe->u.bulk.sqh; 1403 1404 upipe->u.bulk.isread = isread; 1405 upipe->u.bulk.length = len; 1406 1407 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1408 reqh->flags & USBD_SHORT_XFER_OK, 1409 &reqh->dmabuf, &data, &dataend); 1410 if (r != USBD_NORMAL_COMPLETION) 1411 return (r); 1412 dataend->td.td_status |= LE(UHCI_TD_IOC); 1413 1414 #ifdef USB_DEBUG 1415 if (uhcidebug > 8) { 1416 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1417 uhci_dump_tds(data); 1418 } 1419 #endif 1420 1421 /* Set up interrupt info. */ 1422 ii->reqh = reqh; 1423 ii->stdstart = data; 1424 ii->stdend = dataend; 1425 #ifdef DIAGNOSTIC 1426 ii->isdone = 0; 1427 #endif 1428 1429 sqh->elink = data; 1430 sqh->qh.qh_elink = LE(data->physaddr); 1431 sqh->intr_info = ii; 1432 1433 s = splusb(); 1434 uhci_add_bulk(sc, sqh); 1435 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1436 1437 if (reqh->timeout && !sc->sc_bus.use_polling) { 1438 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1439 ii->timeout_handle); 1440 } 1441 splx(s); 1442 1443 #ifdef USB_DEBUG 1444 if (uhcidebug > 10) { 1445 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1446 uhci_dump_tds(data); 1447 } 1448 #endif 1449 1450 if (sc->sc_bus.use_polling) 1451 uhci_waitintr(sc, reqh); 1452 1453 return (USBD_IN_PROGRESS); 1454 } 1455 1456 /* Abort a device bulk request. */ 1457 void 1458 uhci_device_bulk_abort(reqh) 1459 usbd_request_handle reqh; 1460 { 1461 DPRINTF(("uhci_device_bulk_abort:\n")); 1462 uhci_abort_req(reqh, USBD_CANCELLED); 1463 } 1464 1465 void 1466 uhci_abort_req(reqh, status) 1467 usbd_request_handle reqh; 1468 usbd_status status; 1469 { 1470 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1471 uhci_intr_info_t *ii = upipe->iinfo; 1472 uhci_soft_td_t *std; 1473 1474 /* Make interrupt routine ignore it, */ 1475 reqh->status = status; 1476 1477 /* don't timeout, */ 1478 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1479 1480 /* make hardware ignore it, */ 1481 for (std = ii->stdstart; std != 0; std = std->link.std) 1482 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1483 1484 reqh->hcpriv = ii; 1485 1486 /* make sure hardware has completed, */ 1487 if (reqh->device->bus->intr_context) { 1488 /* We have no process context, so we can't use tsleep(). */ 1489 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1490 } else { 1491 usb_delay_ms(reqh->pipe->device->bus, 1); 1492 /* and call final part of interrupt handler. */ 1493 uhci_abort_req_end(reqh); 1494 } 1495 } 1496 1497 void 1498 uhci_abort_req_end(v) 1499 void *v; 1500 { 1501 usbd_request_handle reqh = v; 1502 int s; 1503 1504 s = splusb(); 1505 usb_transfer_complete(reqh); 1506 splx(s); 1507 } 1508 1509 /* Close a device bulk pipe. */ 1510 void 1511 uhci_device_bulk_close(pipe) 1512 usbd_pipe_handle pipe; 1513 { 1514 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1515 usbd_device_handle dev = upipe->pipe.device; 1516 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1517 1518 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1519 uhci_free_intr_info(upipe->iinfo); 1520 /* XXX free other resources */ 1521 } 1522 1523 usbd_status 1524 uhci_device_ctrl_transfer(reqh) 1525 usbd_request_handle reqh; 1526 { 1527 usbd_status r; 1528 1529 /* Insert last in queue. */ 1530 r = usb_insert_transfer(reqh); 1531 if (r != USBD_NORMAL_COMPLETION) 1532 return (r); 1533 1534 /* Pipe isn't running, start first */ 1535 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1536 } 1537 1538 usbd_status 1539 uhci_device_ctrl_start(reqh) 1540 usbd_request_handle reqh; 1541 { 1542 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1543 usbd_status r; 1544 1545 #ifdef DIAGNOSTIC 1546 if (!(reqh->rqflags & URQ_REQUEST)) 1547 panic("uhci_device_ctrl_transfer: not a request\n"); 1548 #endif 1549 1550 r = uhci_device_request(reqh); 1551 if (r != USBD_NORMAL_COMPLETION) 1552 return (r); 1553 1554 if (sc->sc_bus.use_polling) 1555 uhci_waitintr(sc, reqh); 1556 return (USBD_IN_PROGRESS); 1557 } 1558 1559 usbd_status 1560 uhci_device_intr_transfer(reqh) 1561 usbd_request_handle reqh; 1562 { 1563 usbd_status r; 1564 1565 /* Insert last in queue. */ 1566 r = usb_insert_transfer(reqh); 1567 if (r != USBD_NORMAL_COMPLETION) 1568 return (r); 1569 1570 /* Pipe isn't running, start first */ 1571 return (uhci_device_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1572 } 1573 1574 usbd_status 1575 uhci_device_intr_start(reqh) 1576 usbd_request_handle reqh; 1577 { 1578 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1579 usbd_device_handle dev = upipe->pipe.device; 1580 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1581 uhci_intr_info_t *ii = upipe->iinfo; 1582 uhci_soft_td_t *data, *dataend; 1583 uhci_soft_qh_t *sqh; 1584 usbd_status r; 1585 int i, s; 1586 1587 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1588 reqh, reqh->length, reqh->flags)); 1589 1590 #ifdef DIAGNOSTIC 1591 if (reqh->rqflags & URQ_REQUEST) 1592 panic("uhci_device_intr_transfer: a request\n"); 1593 #endif 1594 1595 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1596 reqh->flags & USBD_SHORT_XFER_OK, 1597 &reqh->dmabuf, &data, &dataend); 1598 if (r != USBD_NORMAL_COMPLETION) 1599 return (r); 1600 dataend->td.td_status |= LE(UHCI_TD_IOC); 1601 1602 #ifdef USB_DEBUG 1603 if (uhcidebug > 10) { 1604 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1605 uhci_dump_tds(data); 1606 uhci_dump_qh(upipe->u.intr.qhs[0]); 1607 } 1608 #endif 1609 1610 s = splusb(); 1611 /* Set up interrupt info. */ 1612 ii->reqh = reqh; 1613 ii->stdstart = data; 1614 ii->stdend = dataend; 1615 #ifdef DIAGNOSTIC 1616 ii->isdone = 0; 1617 #endif 1618 1619 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1620 upipe->u.intr.qhs[0])); 1621 for (i = 0; i < upipe->u.intr.npoll; i++) { 1622 sqh = upipe->u.intr.qhs[i]; 1623 sqh->elink = data; 1624 sqh->qh.qh_elink = LE(data->physaddr); 1625 } 1626 splx(s); 1627 1628 #ifdef USB_DEBUG 1629 if (uhcidebug > 10) { 1630 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1631 uhci_dump_tds(data); 1632 uhci_dump_qh(upipe->u.intr.qhs[0]); 1633 } 1634 #endif 1635 1636 return (USBD_IN_PROGRESS); 1637 } 1638 1639 /* Abort a device control request. */ 1640 void 1641 uhci_device_ctrl_abort(reqh) 1642 usbd_request_handle reqh; 1643 { 1644 DPRINTF(("uhci_device_ctrl_abort:\n")); 1645 uhci_abort_req(reqh, USBD_CANCELLED); 1646 } 1647 1648 /* Close a device control pipe. */ 1649 void 1650 uhci_device_ctrl_close(pipe) 1651 usbd_pipe_handle pipe; 1652 { 1653 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1654 1655 uhci_free_intr_info(upipe->iinfo); 1656 /* XXX free other resources */ 1657 } 1658 1659 /* Abort a device interrupt request. */ 1660 void 1661 uhci_device_intr_abort(reqh) 1662 usbd_request_handle reqh; 1663 { 1664 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1665 if (reqh->pipe->intrreqh == reqh) { 1666 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1667 reqh->pipe->intrreqh = 0; 1668 } 1669 uhci_abort_req(reqh, USBD_CANCELLED); 1670 } 1671 1672 /* Close a device interrupt pipe. */ 1673 void 1674 uhci_device_intr_close(pipe) 1675 usbd_pipe_handle pipe; 1676 { 1677 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1678 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1679 int i, s, npoll; 1680 1681 upipe->iinfo->stdstart = 0; /* inactive */ 1682 1683 /* Unlink descriptors from controller data structures. */ 1684 npoll = upipe->u.intr.npoll; 1685 uhci_lock_frames(sc); 1686 for (i = 0; i < npoll; i++) 1687 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1688 upipe->u.intr.qhs[i]); 1689 uhci_unlock_frames(sc); 1690 1691 /* 1692 * We now have to wait for any activity on the physical 1693 * descriptors to stop. 1694 */ 1695 usb_delay_ms(&sc->sc_bus, 2); 1696 1697 for(i = 0; i < npoll; i++) 1698 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1699 free(upipe->u.intr.qhs, M_USBHC); 1700 1701 s = splusb(); 1702 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1703 splx(s); 1704 uhci_free_intr_info(upipe->iinfo); 1705 1706 /* XXX free other resources */ 1707 } 1708 1709 usbd_status 1710 uhci_device_request(reqh) 1711 usbd_request_handle reqh; 1712 { 1713 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1714 usb_device_request_t *req = &reqh->request; 1715 usbd_device_handle dev = upipe->pipe.device; 1716 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1717 int addr = dev->address; 1718 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1719 uhci_intr_info_t *ii = upipe->iinfo; 1720 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1721 uhci_soft_qh_t *sqh; 1722 int len; 1723 u_int32_t ls; 1724 usbd_status r; 1725 int isread; 1726 int s; 1727 1728 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1729 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1730 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1731 UGETW(req->wIndex), UGETW(req->wLength), 1732 addr, endpt)); 1733 1734 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1735 isread = req->bmRequestType & UT_READ; 1736 len = UGETW(req->wLength); 1737 1738 setup = upipe->u.ctl.setup; 1739 stat = upipe->u.ctl.stat; 1740 sqh = upipe->u.ctl.sqh; 1741 1742 /* Set up data transaction */ 1743 if (len != 0) { 1744 upipe->nexttoggle = 1; 1745 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1746 reqh->flags & USBD_SHORT_XFER_OK, 1747 &reqh->dmabuf, &data, &dataend); 1748 if (r != USBD_NORMAL_COMPLETION) 1749 return (r); 1750 next = data; 1751 dataend->link.std = stat; 1752 dataend->td.td_link = LE(stat->physaddr); 1753 } else { 1754 next = stat; 1755 } 1756 upipe->u.ctl.length = len; 1757 1758 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1759 1760 setup->link.std = next; 1761 setup->td.td_link = LE(next->physaddr); 1762 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1763 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1764 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1765 1766 stat->link.std = 0; 1767 stat->td.td_link = LE(UHCI_PTR_T); 1768 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1769 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1770 stat->td.td_token = 1771 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1772 UHCI_TD_IN (0, endpt, addr, 1)); 1773 stat->td.td_buffer = LE(0); 1774 1775 #ifdef USB_DEBUG 1776 if (uhcidebug > 20) { 1777 DPRINTF(("uhci_device_request: before transfer\n")); 1778 uhci_dump_tds(setup); 1779 } 1780 #endif 1781 1782 /* Set up interrupt info. */ 1783 ii->reqh = reqh; 1784 ii->stdstart = setup; 1785 ii->stdend = stat; 1786 #ifdef DIAGNOSTIC 1787 ii->isdone = 0; 1788 #endif 1789 1790 sqh->elink = setup; 1791 sqh->qh.qh_elink = LE(setup->physaddr); 1792 sqh->intr_info = ii; 1793 1794 s = splusb(); 1795 uhci_add_ctrl(sc, sqh); 1796 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1797 #ifdef USB_DEBUG 1798 if (uhcidebug > 12) { 1799 uhci_soft_td_t *std; 1800 uhci_soft_qh_t *xqh; 1801 uhci_soft_qh_t *sxqh; 1802 int maxqh = 0; 1803 uhci_physaddr_t link; 1804 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1805 for (std = sc->sc_vframes[0].htd, link = 0; 1806 (link & UHCI_PTR_Q) == 0; 1807 std = std->link.std) { 1808 link = LE(std->td.td_link); 1809 uhci_dump_td(std); 1810 } 1811 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1812 xqh; 1813 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1814 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1815 uhci_dump_qh(xqh); 1816 uhci_dump_qh(sxqh); 1817 } 1818 DPRINTF(("Enqueued QH:\n")); 1819 uhci_dump_qh(sqh); 1820 uhci_dump_tds(sqh->elink); 1821 } 1822 #endif 1823 if (reqh->timeout && !sc->sc_bus.use_polling) { 1824 usb_timeout(uhci_timeout, ii, 1825 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1826 } 1827 splx(s); 1828 1829 return (USBD_NORMAL_COMPLETION); 1830 } 1831 1832 usbd_status 1833 uhci_device_isoc_transfer(reqh) 1834 usbd_request_handle reqh; 1835 { 1836 usbd_status r; 1837 1838 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1839 1840 /* Put it on our queue, */ 1841 r = usb_insert_transfer(reqh); 1842 1843 /* bail out on error, */ 1844 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1845 return (r); 1846 1847 /* XXX should check inuse here */ 1848 1849 /* insert into schedule, */ 1850 uhci_device_isoc_enter(reqh); 1851 1852 /* and put on interrupt list if the pipe wasn't running */ 1853 if (r == USBD_NORMAL_COMPLETION) 1854 uhci_device_isoc_start(SIMPLEQ_FIRST(&reqh->pipe->queue)); 1855 1856 return (r); 1857 } 1858 1859 void 1860 uhci_device_isoc_enter(reqh) 1861 usbd_request_handle reqh; 1862 { 1863 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1864 usbd_device_handle dev = upipe->pipe.device; 1865 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1866 struct iso *iso = &upipe->u.iso; 1867 uhci_soft_td_t *std; 1868 u_int32_t buf, len, status; 1869 int s, i, next, nframes; 1870 1871 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1872 "nframes=%d\n", 1873 iso->inuse, iso->next, reqh, reqh->nframes)); 1874 1875 if (reqh->status == USBD_IN_PROGRESS) { 1876 /* This request has already been entered into the frame list */ 1877 } 1878 1879 #ifdef DIAGNOSTIC 1880 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1881 printf("uhci_device_isoc_enter: overflow!\n"); 1882 #endif 1883 1884 next = iso->next; 1885 if (next == -1) { 1886 /* Not in use yet, schedule it a few frames ahead. */ 1887 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1888 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1889 } 1890 1891 reqh->status = USBD_IN_PROGRESS; 1892 reqh->hcprivint = next; 1893 1894 buf = DMAADDR(&reqh->dmabuf); 1895 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1896 UHCI_TD_ACTIVE | 1897 UHCI_TD_IOS)); 1898 nframes = reqh->nframes; 1899 s = splusb(); 1900 for (i = 0; i < nframes; i++) { 1901 std = iso->stds[next]; 1902 if (++next >= UHCI_VFRAMELIST_COUNT) 1903 next = 0; 1904 len = reqh->frlengths[i]; 1905 std->td.td_buffer = LE(buf); 1906 if (i == nframes - 1) 1907 status |= LE(UHCI_TD_IOC); 1908 std->td.td_status = status; 1909 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1910 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1911 #ifdef USB_DEBUG 1912 if (uhcidebug > 5) { 1913 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1914 uhci_dump_td(std); 1915 } 1916 #endif 1917 buf += len; 1918 } 1919 iso->next = next; 1920 iso->inuse += reqh->nframes; 1921 1922 splx(s); 1923 } 1924 1925 usbd_status 1926 uhci_device_isoc_start(reqh) 1927 usbd_request_handle reqh; 1928 { 1929 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1930 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1931 uhci_intr_info_t *ii = upipe->iinfo; 1932 uhci_soft_td_t *end; 1933 int s, i; 1934 1935 #ifdef DIAGNOSTIC 1936 if (reqh->status != USBD_IN_PROGRESS) 1937 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1938 #endif 1939 1940 /* Find the last TD */ 1941 i = reqh->hcprivint + reqh->nframes; 1942 if (i >= UHCI_VFRAMELIST_COUNT) 1943 i -= UHCI_VFRAMELIST_COUNT; 1944 end = upipe->u.iso.stds[i]; 1945 1946 s = splusb(); 1947 1948 /* Set up interrupt info. */ 1949 ii->reqh = reqh; 1950 ii->stdstart = end; 1951 ii->stdend = end; 1952 #ifdef DIAGNOSTIC 1953 ii->isdone = 0; 1954 #endif 1955 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1956 1957 splx(s); 1958 1959 return (USBD_IN_PROGRESS); 1960 } 1961 1962 void 1963 uhci_device_isoc_abort(reqh) 1964 usbd_request_handle reqh; 1965 { 1966 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1967 uhci_intr_info_t *ii = upipe->iinfo; 1968 uhci_soft_td_t **stds = upipe->u.iso.stds; 1969 uhci_soft_td_t *std; 1970 int i, n, nframes; 1971 1972 /* Make interrupt routine ignore it, */ 1973 reqh->status = USBD_CANCELLED; 1974 1975 /* make hardware ignore it, */ 1976 nframes = reqh->nframes; 1977 n = reqh->hcprivint; 1978 for (i = 0; i < nframes; i++) { 1979 std = stds[n]; 1980 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1981 if (++n >= UHCI_VFRAMELIST_COUNT) 1982 n = 0; 1983 } 1984 1985 reqh->hcpriv = ii; 1986 1987 /* make sure hardware has completed, */ 1988 if (reqh->device->bus->intr_context) { 1989 /* We have no process context, so we can't use tsleep(). */ 1990 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1991 } else { 1992 usb_delay_ms(reqh->pipe->device->bus, 1); 1993 /* and call final part of interrupt handler. */ 1994 uhci_abort_req_end(reqh); 1995 } 1996 } 1997 1998 void 1999 uhci_device_isoc_close(pipe) 2000 usbd_pipe_handle pipe; 2001 { 2002 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2003 usbd_device_handle dev = upipe->pipe.device; 2004 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2005 uhci_soft_td_t *std, *vstd; 2006 struct iso *iso; 2007 int i; 2008 2009 /* 2010 * Make sure all TDs are marked as inactive. 2011 * Wait for completion. 2012 * Unschedule. 2013 * Deallocate. 2014 */ 2015 iso = &upipe->u.iso; 2016 2017 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2018 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2019 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2020 2021 uhci_lock_frames(sc); 2022 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2023 std = iso->stds[i]; 2024 for (vstd = sc->sc_vframes[i].htd; 2025 vstd && vstd->link.std != std; 2026 vstd = vstd->link.std) 2027 ; 2028 if (!vstd) { 2029 /*panic*/ 2030 printf("uhci_device_isoc_close: %p not found\n", std); 2031 uhci_unlock_frames(sc); 2032 return; 2033 } 2034 vstd->link = std->link; 2035 vstd->td.td_link = std->td.td_link; 2036 uhci_free_std(sc, std); 2037 } 2038 uhci_unlock_frames(sc); 2039 2040 free(iso->stds, M_USBHC); 2041 } 2042 2043 usbd_status 2044 uhci_setup_isoc(pipe) 2045 usbd_pipe_handle pipe; 2046 { 2047 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2048 usbd_device_handle dev = upipe->pipe.device; 2049 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2050 int addr = upipe->pipe.device->address; 2051 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2052 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2053 uhci_soft_td_t *std, *vstd; 2054 u_int32_t token; 2055 struct iso *iso; 2056 int i; 2057 2058 iso = &upipe->u.iso; 2059 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2060 M_USBHC, M_WAITOK); 2061 2062 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2063 UHCI_TD_OUT(0, endpt, addr, 0)); 2064 2065 /* Allocate the TDs and mark as inactive; */ 2066 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2067 std = uhci_alloc_std(sc); 2068 if (std == 0) 2069 goto bad; 2070 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2071 std->td.td_token = token; 2072 iso->stds[i] = std; 2073 } 2074 2075 /* Insert TDs into schedule. */ 2076 uhci_lock_frames(sc); 2077 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2078 std = iso->stds[i]; 2079 vstd = sc->sc_vframes[i].htd; 2080 std->link = vstd->link; 2081 std->td.td_link = vstd->td.td_link; 2082 vstd->link.std = std; 2083 vstd->td.td_link = LE(std->physaddr); 2084 } 2085 uhci_unlock_frames(sc); 2086 2087 iso->next = -1; 2088 iso->inuse = 0; 2089 2090 return (USBD_NORMAL_COMPLETION); 2091 2092 bad: 2093 while (--i >= 0) 2094 uhci_free_std(sc, iso->stds[i]); 2095 free(iso->stds, M_USBHC); 2096 return (USBD_NOMEM); 2097 } 2098 2099 void 2100 uhci_device_isoc_done(reqh) 2101 usbd_request_handle reqh; 2102 { 2103 uhci_intr_info_t *ii = reqh->hcpriv; 2104 2105 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2106 2107 /* Turn off the interrupt since it is active even if the TD is not. */ 2108 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2109 2110 LIST_REMOVE(ii, list); /* remove from active list */ 2111 } 2112 2113 void 2114 uhci_device_intr_done(reqh) 2115 usbd_request_handle reqh; 2116 { 2117 uhci_intr_info_t *ii = reqh->hcpriv; 2118 uhci_softc_t *sc = ii->sc; 2119 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2120 uhci_soft_qh_t *sqh; 2121 int i, npoll; 2122 2123 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2124 2125 npoll = upipe->u.intr.npoll; 2126 for(i = 0; i < npoll; i++) { 2127 sqh = upipe->u.intr.qhs[i]; 2128 sqh->elink = 0; 2129 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2130 } 2131 uhci_free_std_chain(sc, ii->stdstart, 0); 2132 2133 /* XXX Wasteful. */ 2134 if (reqh->pipe->repeat) { 2135 uhci_soft_td_t *data, *dataend; 2136 2137 /* This alloc cannot fail since we freed the chain above. */ 2138 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2139 reqh->flags & USBD_SHORT_XFER_OK, 2140 &reqh->dmabuf, &data, &dataend); 2141 dataend->td.td_status |= LE(UHCI_TD_IOC); 2142 2143 #ifdef USB_DEBUG 2144 if (uhcidebug > 10) { 2145 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2146 uhci_dump_tds(data); 2147 uhci_dump_qh(upipe->u.intr.qhs[0]); 2148 } 2149 #endif 2150 2151 ii->stdstart = data; 2152 ii->stdend = dataend; 2153 #ifdef DIAGNOSTIC 2154 ii->isdone = 0; 2155 #endif 2156 for (i = 0; i < npoll; i++) { 2157 sqh = upipe->u.intr.qhs[i]; 2158 sqh->elink = data; 2159 sqh->qh.qh_elink = LE(data->physaddr); 2160 } 2161 } else { 2162 ii->stdstart = 0; /* mark as inactive */ 2163 } 2164 } 2165 2166 /* Deallocate request data structures */ 2167 void 2168 uhci_device_ctrl_done(reqh) 2169 usbd_request_handle reqh; 2170 { 2171 uhci_intr_info_t *ii = reqh->hcpriv; 2172 uhci_softc_t *sc = ii->sc; 2173 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2174 2175 #ifdef DIAGNOSTIC 2176 if (!(reqh->rqflags & URQ_REQUEST)) 2177 panic("uhci_ctrl_done: not a request\n"); 2178 #endif 2179 2180 LIST_REMOVE(ii, list); /* remove from active list */ 2181 2182 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2183 2184 if (upipe->u.ctl.length != 0) 2185 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2186 2187 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2188 } 2189 2190 /* Deallocate request data structures */ 2191 void 2192 uhci_device_bulk_done(reqh) 2193 usbd_request_handle reqh; 2194 { 2195 uhci_intr_info_t *ii = reqh->hcpriv; 2196 uhci_softc_t *sc = ii->sc; 2197 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2198 2199 LIST_REMOVE(ii, list); /* remove from active list */ 2200 2201 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2202 2203 uhci_free_std_chain(sc, ii->stdstart, 0); 2204 2205 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2206 } 2207 2208 /* Add interrupt QH, called with vflock. */ 2209 void 2210 uhci_add_intr(sc, n, sqh) 2211 uhci_softc_t *sc; 2212 int n; 2213 uhci_soft_qh_t *sqh; 2214 { 2215 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2216 uhci_soft_qh_t *eqh; 2217 2218 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2219 eqh = vf->eqh; 2220 sqh->hlink = eqh->hlink; 2221 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2222 eqh->hlink = sqh; 2223 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2224 vf->eqh = sqh; 2225 vf->bandwidth++; 2226 } 2227 2228 /* Remove interrupt QH, called with vflock. */ 2229 void 2230 uhci_remove_intr(sc, n, sqh) 2231 uhci_softc_t *sc; 2232 int n; 2233 uhci_soft_qh_t *sqh; 2234 { 2235 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2236 uhci_soft_qh_t *pqh; 2237 2238 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2239 2240 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2241 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2242 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2243 DPRINTF(("uhci_remove_intr: QH not found\n")); 2244 return; 2245 } 2246 #else 2247 ; 2248 #endif 2249 pqh->hlink = sqh->hlink; 2250 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2251 if (vf->eqh == sqh) 2252 vf->eqh = pqh; 2253 vf->bandwidth--; 2254 } 2255 2256 usbd_status 2257 uhci_device_setintr(sc, upipe, ival) 2258 uhci_softc_t *sc; 2259 struct uhci_pipe *upipe; 2260 int ival; 2261 { 2262 uhci_soft_qh_t *sqh; 2263 int i, npoll, s; 2264 u_int bestbw, bw, bestoffs, offs; 2265 2266 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2267 if (ival == 0) { 2268 printf("uhci_setintr: 0 interval\n"); 2269 return (USBD_INVAL); 2270 } 2271 2272 if (ival > UHCI_VFRAMELIST_COUNT) 2273 ival = UHCI_VFRAMELIST_COUNT; 2274 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2275 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2276 2277 upipe->u.intr.npoll = npoll; 2278 upipe->u.intr.qhs = 2279 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2280 2281 /* 2282 * Figure out which offset in the schedule that has most 2283 * bandwidth left over. 2284 */ 2285 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2286 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2287 for (bw = i = 0; i < npoll; i++) 2288 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2289 if (bw < bestbw) { 2290 bestbw = bw; 2291 bestoffs = offs; 2292 } 2293 } 2294 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2295 2296 upipe->iinfo->stdstart = 0; 2297 for(i = 0; i < npoll; i++) { 2298 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2299 sqh->elink = 0; 2300 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2301 sqh->pos = MOD(i * ival + bestoffs); 2302 sqh->intr_info = upipe->iinfo; 2303 } 2304 #undef MOD 2305 2306 s = splusb(); 2307 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2308 splx(s); 2309 2310 uhci_lock_frames(sc); 2311 /* Enter QHs into the controller data structures. */ 2312 for(i = 0; i < npoll; i++) 2313 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2314 upipe->u.intr.qhs[i]); 2315 uhci_unlock_frames(sc); 2316 2317 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2318 return (USBD_NORMAL_COMPLETION); 2319 } 2320 2321 /* Open a new pipe. */ 2322 usbd_status 2323 uhci_open(pipe) 2324 usbd_pipe_handle pipe; 2325 { 2326 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2327 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2328 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2329 usbd_status r; 2330 2331 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2332 pipe, pipe->device->address, 2333 ed->bEndpointAddress, sc->sc_addr)); 2334 if (pipe->device->address == sc->sc_addr) { 2335 switch (ed->bEndpointAddress) { 2336 case USB_CONTROL_ENDPOINT: 2337 pipe->methods = &uhci_root_ctrl_methods; 2338 break; 2339 case UE_DIR_IN | UHCI_INTR_ENDPT: 2340 pipe->methods = &uhci_root_intr_methods; 2341 break; 2342 default: 2343 return (USBD_INVAL); 2344 } 2345 } else { 2346 upipe->iinfo = uhci_alloc_intr_info(sc); 2347 if (upipe->iinfo == 0) 2348 return (USBD_NOMEM); 2349 switch (ed->bmAttributes & UE_XFERTYPE) { 2350 case UE_CONTROL: 2351 pipe->methods = &uhci_device_ctrl_methods; 2352 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2353 if (upipe->u.ctl.sqh == 0) 2354 goto bad; 2355 upipe->u.ctl.setup = uhci_alloc_std(sc); 2356 if (upipe->u.ctl.setup == 0) { 2357 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2358 goto bad; 2359 } 2360 upipe->u.ctl.stat = uhci_alloc_std(sc); 2361 if (upipe->u.ctl.stat == 0) { 2362 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2363 uhci_free_std(sc, upipe->u.ctl.setup); 2364 goto bad; 2365 } 2366 r = usb_allocmem(&sc->sc_bus, 2367 sizeof(usb_device_request_t), 2368 0, &upipe->u.ctl.reqdma); 2369 if (r != USBD_NORMAL_COMPLETION) { 2370 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2371 uhci_free_std(sc, upipe->u.ctl.setup); 2372 uhci_free_std(sc, upipe->u.ctl.stat); 2373 goto bad; 2374 } 2375 break; 2376 case UE_INTERRUPT: 2377 pipe->methods = &uhci_device_intr_methods; 2378 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2379 case UE_ISOCHRONOUS: 2380 pipe->methods = &uhci_device_isoc_methods; 2381 return (uhci_setup_isoc(pipe)); 2382 case UE_BULK: 2383 pipe->methods = &uhci_device_bulk_methods; 2384 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2385 if (upipe->u.bulk.sqh == 0) 2386 goto bad; 2387 break; 2388 } 2389 } 2390 return (USBD_NORMAL_COMPLETION); 2391 2392 bad: 2393 uhci_free_intr_info(upipe->iinfo); 2394 return (USBD_NOMEM); 2395 } 2396 2397 /* 2398 * Data structures and routines to emulate the root hub. 2399 */ 2400 usb_device_descriptor_t uhci_devd = { 2401 USB_DEVICE_DESCRIPTOR_SIZE, 2402 UDESC_DEVICE, /* type */ 2403 {0x00, 0x01}, /* USB version */ 2404 UCLASS_HUB, /* class */ 2405 USUBCLASS_HUB, /* subclass */ 2406 0, /* protocol */ 2407 64, /* max packet */ 2408 {0},{0},{0x00,0x01}, /* device id */ 2409 1,2,0, /* string indicies */ 2410 1 /* # of configurations */ 2411 }; 2412 2413 usb_config_descriptor_t uhci_confd = { 2414 USB_CONFIG_DESCRIPTOR_SIZE, 2415 UDESC_CONFIG, 2416 {USB_CONFIG_DESCRIPTOR_SIZE + 2417 USB_INTERFACE_DESCRIPTOR_SIZE + 2418 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2419 1, 2420 1, 2421 0, 2422 UC_SELF_POWERED, 2423 0 /* max power */ 2424 }; 2425 2426 usb_interface_descriptor_t uhci_ifcd = { 2427 USB_INTERFACE_DESCRIPTOR_SIZE, 2428 UDESC_INTERFACE, 2429 0, 2430 0, 2431 1, 2432 UCLASS_HUB, 2433 USUBCLASS_HUB, 2434 0, 2435 0 2436 }; 2437 2438 usb_endpoint_descriptor_t uhci_endpd = { 2439 USB_ENDPOINT_DESCRIPTOR_SIZE, 2440 UDESC_ENDPOINT, 2441 UE_DIR_IN | UHCI_INTR_ENDPT, 2442 UE_INTERRUPT, 2443 {8}, 2444 255 2445 }; 2446 2447 usb_hub_descriptor_t uhci_hubd_piix = { 2448 USB_HUB_DESCRIPTOR_SIZE, 2449 UDESC_HUB, 2450 2, 2451 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2452 50, /* power on to power good */ 2453 0, 2454 { 0x00 }, /* both ports are removable */ 2455 }; 2456 2457 int 2458 uhci_str(p, l, s) 2459 usb_string_descriptor_t *p; 2460 int l; 2461 char *s; 2462 { 2463 int i; 2464 2465 if (l == 0) 2466 return (0); 2467 p->bLength = 2 * strlen(s) + 2; 2468 if (l == 1) 2469 return (1); 2470 p->bDescriptorType = UDESC_STRING; 2471 l -= 2; 2472 for (i = 0; s[i] && l > 1; i++, l -= 2) 2473 USETW2(p->bString[i], 0, s[i]); 2474 return (2*i+2); 2475 } 2476 2477 /* 2478 * Simulate a hardware hub by handling all the necessary requests. 2479 */ 2480 usbd_status 2481 uhci_root_ctrl_transfer(reqh) 2482 usbd_request_handle reqh; 2483 { 2484 usbd_status r; 2485 2486 /* Insert last in queue. */ 2487 r = usb_insert_transfer(reqh); 2488 if (r != USBD_NORMAL_COMPLETION) 2489 return (r); 2490 2491 /* Pipe isn't running, start first */ 2492 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2493 } 2494 2495 usbd_status 2496 uhci_root_ctrl_start(reqh) 2497 usbd_request_handle reqh; 2498 { 2499 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2500 usb_device_request_t *req; 2501 void *buf; 2502 int port, x; 2503 int s, len, value, index, status, change, l, totlen = 0; 2504 usb_port_status_t ps; 2505 usbd_status r; 2506 2507 #ifdef DIAGNOSTIC 2508 if (!(reqh->rqflags & URQ_REQUEST)) 2509 panic("uhci_root_ctrl_transfer: not a request\n"); 2510 #endif 2511 req = &reqh->request; 2512 2513 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2514 req->bmRequestType, req->bRequest)); 2515 2516 len = UGETW(req->wLength); 2517 value = UGETW(req->wValue); 2518 index = UGETW(req->wIndex); 2519 2520 if (len != 0) 2521 buf = KERNADDR(&reqh->dmabuf); 2522 #ifdef DIAGNOSTIC 2523 else 2524 buf = 0; 2525 #endif 2526 2527 #define C(x,y) ((x) | ((y) << 8)) 2528 switch(C(req->bRequest, req->bmRequestType)) { 2529 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2530 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2531 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2532 /* 2533 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2534 * for the integrated root hub. 2535 */ 2536 break; 2537 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2538 if (len > 0) { 2539 *(u_int8_t *)buf = sc->sc_conf; 2540 totlen = 1; 2541 } 2542 break; 2543 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2544 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2545 switch(value >> 8) { 2546 case UDESC_DEVICE: 2547 if ((value & 0xff) != 0) { 2548 r = USBD_IOERROR; 2549 goto ret; 2550 } 2551 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2552 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2553 memcpy(buf, &uhci_devd, l); 2554 break; 2555 case UDESC_CONFIG: 2556 if ((value & 0xff) != 0) { 2557 r = USBD_IOERROR; 2558 goto ret; 2559 } 2560 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2561 memcpy(buf, &uhci_confd, l); 2562 buf = (char *)buf + l; 2563 len -= l; 2564 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2565 totlen += l; 2566 memcpy(buf, &uhci_ifcd, l); 2567 buf = (char *)buf + l; 2568 len -= l; 2569 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2570 totlen += l; 2571 memcpy(buf, &uhci_endpd, l); 2572 break; 2573 case UDESC_STRING: 2574 if (len == 0) 2575 break; 2576 *(u_int8_t *)buf = 0; 2577 totlen = 1; 2578 switch (value & 0xff) { 2579 case 1: /* Vendor */ 2580 totlen = uhci_str(buf, len, sc->sc_vendor); 2581 break; 2582 case 2: /* Product */ 2583 totlen = uhci_str(buf, len, "UHCI root hub"); 2584 break; 2585 } 2586 break; 2587 default: 2588 r = USBD_IOERROR; 2589 goto ret; 2590 } 2591 break; 2592 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2593 if (len > 0) { 2594 *(u_int8_t *)buf = 0; 2595 totlen = 1; 2596 } 2597 break; 2598 case C(UR_GET_STATUS, UT_READ_DEVICE): 2599 if (len > 1) { 2600 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2601 totlen = 2; 2602 } 2603 break; 2604 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2605 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2606 if (len > 1) { 2607 USETW(((usb_status_t *)buf)->wStatus, 0); 2608 totlen = 2; 2609 } 2610 break; 2611 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2612 if (value >= USB_MAX_DEVICES) { 2613 r = USBD_IOERROR; 2614 goto ret; 2615 } 2616 sc->sc_addr = value; 2617 break; 2618 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2619 if (value != 0 && value != 1) { 2620 r = USBD_IOERROR; 2621 goto ret; 2622 } 2623 sc->sc_conf = value; 2624 break; 2625 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2626 break; 2627 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2628 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2629 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2630 r = USBD_IOERROR; 2631 goto ret; 2632 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2633 break; 2634 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2635 break; 2636 /* Hub requests */ 2637 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2638 break; 2639 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2640 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2641 "port=%d feature=%d\n", 2642 index, value)); 2643 if (index == 1) 2644 port = UHCI_PORTSC1; 2645 else if (index == 2) 2646 port = UHCI_PORTSC2; 2647 else { 2648 r = USBD_IOERROR; 2649 goto ret; 2650 } 2651 switch(value) { 2652 case UHF_PORT_ENABLE: 2653 x = UREAD2(sc, port); 2654 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2655 break; 2656 case UHF_PORT_SUSPEND: 2657 x = UREAD2(sc, port); 2658 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2659 break; 2660 case UHF_PORT_RESET: 2661 x = UREAD2(sc, port); 2662 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2663 break; 2664 case UHF_C_PORT_CONNECTION: 2665 x = UREAD2(sc, port); 2666 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2667 break; 2668 case UHF_C_PORT_ENABLE: 2669 x = UREAD2(sc, port); 2670 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2671 break; 2672 case UHF_C_PORT_OVER_CURRENT: 2673 x = UREAD2(sc, port); 2674 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2675 break; 2676 case UHF_C_PORT_RESET: 2677 sc->sc_isreset = 0; 2678 r = USBD_NORMAL_COMPLETION; 2679 goto ret; 2680 case UHF_PORT_CONNECTION: 2681 case UHF_PORT_OVER_CURRENT: 2682 case UHF_PORT_POWER: 2683 case UHF_PORT_LOW_SPEED: 2684 case UHF_C_PORT_SUSPEND: 2685 default: 2686 r = USBD_IOERROR; 2687 goto ret; 2688 } 2689 break; 2690 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2691 if (index == 1) 2692 port = UHCI_PORTSC1; 2693 else if (index == 2) 2694 port = UHCI_PORTSC2; 2695 else { 2696 r = USBD_IOERROR; 2697 goto ret; 2698 } 2699 if (len > 0) { 2700 *(u_int8_t *)buf = 2701 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2702 UHCI_PORTSC_LS_SHIFT; 2703 totlen = 1; 2704 } 2705 break; 2706 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2707 if (value != 0) { 2708 r = USBD_IOERROR; 2709 goto ret; 2710 } 2711 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2712 totlen = l; 2713 memcpy(buf, &uhci_hubd_piix, l); 2714 break; 2715 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2716 if (len != 4) { 2717 r = USBD_IOERROR; 2718 goto ret; 2719 } 2720 memset(buf, 0, len); 2721 totlen = len; 2722 break; 2723 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2724 if (index == 1) 2725 port = UHCI_PORTSC1; 2726 else if (index == 2) 2727 port = UHCI_PORTSC2; 2728 else { 2729 r = USBD_IOERROR; 2730 goto ret; 2731 } 2732 if (len != 4) { 2733 r = USBD_IOERROR; 2734 goto ret; 2735 } 2736 x = UREAD2(sc, port); 2737 status = change = 0; 2738 if (x & UHCI_PORTSC_CCS ) 2739 status |= UPS_CURRENT_CONNECT_STATUS; 2740 if (x & UHCI_PORTSC_CSC ) 2741 change |= UPS_C_CONNECT_STATUS; 2742 if (x & UHCI_PORTSC_PE ) 2743 status |= UPS_PORT_ENABLED; 2744 if (x & UHCI_PORTSC_POEDC) 2745 change |= UPS_C_PORT_ENABLED; 2746 if (x & UHCI_PORTSC_OCI ) 2747 status |= UPS_OVERCURRENT_INDICATOR; 2748 if (x & UHCI_PORTSC_OCIC ) 2749 change |= UPS_C_OVERCURRENT_INDICATOR; 2750 if (x & UHCI_PORTSC_SUSP ) 2751 status |= UPS_SUSPEND; 2752 if (x & UHCI_PORTSC_LSDA ) 2753 status |= UPS_LOW_SPEED; 2754 status |= UPS_PORT_POWER; 2755 if (sc->sc_isreset) 2756 change |= UPS_C_PORT_RESET; 2757 USETW(ps.wPortStatus, status); 2758 USETW(ps.wPortChange, change); 2759 l = min(len, sizeof ps); 2760 memcpy(buf, &ps, l); 2761 totlen = l; 2762 break; 2763 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2764 r = USBD_IOERROR; 2765 goto ret; 2766 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2767 break; 2768 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2769 if (index == 1) 2770 port = UHCI_PORTSC1; 2771 else if (index == 2) 2772 port = UHCI_PORTSC2; 2773 else { 2774 r = USBD_IOERROR; 2775 goto ret; 2776 } 2777 switch(value) { 2778 case UHF_PORT_ENABLE: 2779 x = UREAD2(sc, port); 2780 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2781 break; 2782 case UHF_PORT_SUSPEND: 2783 x = UREAD2(sc, port); 2784 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2785 break; 2786 case UHF_PORT_RESET: 2787 x = UREAD2(sc, port); 2788 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2789 usb_delay_ms(&sc->sc_bus, 10); 2790 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2791 delay(100); 2792 x = UREAD2(sc, port); 2793 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2794 delay(100); 2795 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2796 index, UREAD2(sc, port))); 2797 sc->sc_isreset = 1; 2798 break; 2799 case UHF_C_PORT_CONNECTION: 2800 case UHF_C_PORT_ENABLE: 2801 case UHF_C_PORT_OVER_CURRENT: 2802 case UHF_PORT_CONNECTION: 2803 case UHF_PORT_OVER_CURRENT: 2804 case UHF_PORT_POWER: 2805 case UHF_PORT_LOW_SPEED: 2806 case UHF_C_PORT_SUSPEND: 2807 case UHF_C_PORT_RESET: 2808 default: 2809 r = USBD_IOERROR; 2810 goto ret; 2811 } 2812 break; 2813 default: 2814 r = USBD_IOERROR; 2815 goto ret; 2816 } 2817 reqh->actlen = totlen; 2818 r = USBD_NORMAL_COMPLETION; 2819 ret: 2820 reqh->status = r; 2821 reqh->hcpriv = 0; 2822 s = splusb(); 2823 usb_transfer_complete(reqh); 2824 splx(s); 2825 return (USBD_IN_PROGRESS); 2826 } 2827 2828 /* Abort a root control request. */ 2829 void 2830 uhci_root_ctrl_abort(reqh) 2831 usbd_request_handle reqh; 2832 { 2833 /* Nothing to do, all transfers are syncronous. */ 2834 } 2835 2836 /* Close the root pipe. */ 2837 void 2838 uhci_root_ctrl_close(pipe) 2839 usbd_pipe_handle pipe; 2840 { 2841 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2842 2843 sc->sc_has_timo = 0; 2844 DPRINTF(("uhci_root_ctrl_close\n")); 2845 } 2846 2847 /* Abort a root interrupt request. */ 2848 void 2849 uhci_root_intr_abort(reqh) 2850 usbd_request_handle reqh; 2851 { 2852 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2853 2854 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2855 sc->sc_has_timo = 0; 2856 } 2857 2858 usbd_status 2859 uhci_root_intr_transfer(reqh) 2860 usbd_request_handle reqh; 2861 { 2862 usbd_status r; 2863 2864 /* Insert last in queue. */ 2865 r = usb_insert_transfer(reqh); 2866 if (r != USBD_NORMAL_COMPLETION) 2867 return (r); 2868 2869 /* Pipe isn't running, start first */ 2870 return (uhci_root_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2871 } 2872 2873 /* Start a transfer on the root interrupt pipe */ 2874 usbd_status 2875 uhci_root_intr_start(reqh) 2876 usbd_request_handle reqh; 2877 { 2878 usbd_pipe_handle pipe = reqh->pipe; 2879 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2880 2881 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2882 reqh, reqh->length, reqh->flags)); 2883 2884 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2885 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2886 sc->sc_has_timo = reqh; 2887 return (USBD_IN_PROGRESS); 2888 } 2889 2890 /* Close the root interrupt pipe. */ 2891 void 2892 uhci_root_intr_close(pipe) 2893 usbd_pipe_handle pipe; 2894 { 2895 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2896 2897 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2898 sc->sc_has_timo = 0; 2899 DPRINTF(("uhci_root_intr_close\n")); 2900 } 2901 2902
Indexes created Tue Sep 30 17:09:57 GMT 2025