uhci.c revision 1.60
1 /* $NetBSD: uhci.c,v 1.60 1999/10/16 15:35:18 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 #ifdef USB_DEBUG 94 #define DPRINTF(x) if (uhcidebug) printf x 95 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 96 extern int uhcidebug; 97 #else 98 #define DPRINTF(x) 99 #define DPRINTFN(n,x) 100 #endif 101 102 /* 103 * The UHCI controller is little endian, so on big endian machines 104 * the data strored in memory needs to be swapped. 105 */ 106 #if BYTE_ORDER == BIG_ENDIAN 107 #define LE(x) (bswap32(x)) 108 #else 109 #define LE(x) (x) 110 #endif 111 112 struct uhci_pipe { 113 struct usbd_pipe pipe; 114 uhci_intr_info_t *iinfo; 115 int nexttoggle; 116 /* Info needed for different pipe kinds. */ 117 union { 118 /* Control pipe */ 119 struct { 120 uhci_soft_qh_t *sqh; 121 usb_dma_t reqdma; 122 uhci_soft_td_t *setup, *stat; 123 u_int length; 124 } ctl; 125 /* Interrupt pipe */ 126 struct { 127 int npoll; 128 uhci_soft_qh_t **qhs; 129 } intr; 130 /* Bulk pipe */ 131 struct { 132 uhci_soft_qh_t *sqh; 133 u_int length; 134 int isread; 135 } bulk; 136 /* Iso pipe */ 137 struct iso { 138 uhci_soft_td_t **stds; 139 int next, inuse; 140 } iso; 141 } u; 142 }; 143 144 /* 145 * The uhci_intr_info free list can be global since they contain 146 * no dma specific data. The other free lists do. 147 */ 148 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 149 150 void uhci_busreset __P((uhci_softc_t *)); 151 void uhci_power __P((int, void *)); 152 usbd_status uhci_run __P((uhci_softc_t *, int run)); 153 uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 154 void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 155 uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 156 void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 157 uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 158 void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 159 #if 0 160 void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 161 uhci_intr_info_t *)); 162 void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 163 #endif 164 165 void uhci_free_std_chain __P((uhci_softc_t *, 166 uhci_soft_td_t *, uhci_soft_td_t *)); 167 usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, uhci_softc_t *, 168 int, int, int, usb_dma_t *, 169 uhci_soft_td_t **, 170 uhci_soft_td_t **)); 171 void uhci_timo __P((void *)); 172 void uhci_waitintr __P((uhci_softc_t *, usbd_request_handle)); 173 void uhci_check_intr __P((uhci_softc_t *, uhci_intr_info_t *)); 174 void uhci_idone __P((uhci_intr_info_t *)); 175 void uhci_abort_req __P((usbd_request_handle, usbd_status status)); 176 void uhci_abort_req_end __P((void *v)); 177 void uhci_timeout __P((void *)); 178 void uhci_wakeup_ctrl __P((void *, int, int, void *, int)); 179 void uhci_lock_frames __P((uhci_softc_t *)); 180 void uhci_unlock_frames __P((uhci_softc_t *)); 181 void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 182 void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 183 void uhci_remove_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 184 void uhci_remove_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 185 int uhci_str __P((usb_string_descriptor_t *, int, char *)); 186 usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 187 void uhci_device_isoc_enter __P((usbd_request_handle)); 188 189 void uhci_wakeup_cb __P((usbd_request_handle reqh)); 190 191 usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, u_int32_t)); 192 void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 193 194 usbd_status uhci_device_ctrl_transfer __P((usbd_request_handle)); 195 usbd_status uhci_device_ctrl_start __P((usbd_request_handle)); 196 void uhci_device_ctrl_abort __P((usbd_request_handle)); 197 void uhci_device_ctrl_close __P((usbd_pipe_handle)); 198 void uhci_device_ctrl_done __P((usbd_request_handle)); 199 200 usbd_status uhci_device_intr_transfer __P((usbd_request_handle)); 201 usbd_status uhci_device_intr_start __P((usbd_request_handle)); 202 void uhci_device_intr_abort __P((usbd_request_handle)); 203 void uhci_device_intr_close __P((usbd_pipe_handle)); 204 void uhci_device_intr_done __P((usbd_request_handle)); 205 206 usbd_status uhci_device_bulk_transfer __P((usbd_request_handle)); 207 usbd_status uhci_device_bulk_start __P((usbd_request_handle)); 208 void uhci_device_bulk_abort __P((usbd_request_handle)); 209 void uhci_device_bulk_close __P((usbd_pipe_handle)); 210 void uhci_device_bulk_done __P((usbd_request_handle)); 211 212 usbd_status uhci_device_isoc_transfer __P((usbd_request_handle)); 213 usbd_status uhci_device_isoc_start __P((usbd_request_handle)); 214 void uhci_device_isoc_abort __P((usbd_request_handle)); 215 void uhci_device_isoc_close __P((usbd_pipe_handle)); 216 void uhci_device_isoc_done __P((usbd_request_handle)); 217 218 usbd_status uhci_root_ctrl_transfer __P((usbd_request_handle)); 219 usbd_status uhci_root_ctrl_start __P((usbd_request_handle)); 220 void uhci_root_ctrl_abort __P((usbd_request_handle)); 221 void uhci_root_ctrl_close __P((usbd_pipe_handle)); 222 223 usbd_status uhci_root_intr_transfer __P((usbd_request_handle)); 224 usbd_status uhci_root_intr_start __P((usbd_request_handle)); 225 void uhci_root_intr_abort __P((usbd_request_handle)); 226 void uhci_root_intr_close __P((usbd_pipe_handle)); 227 void uhci_root_intr_done __P((usbd_request_handle)); 228 229 usbd_status uhci_open __P((usbd_pipe_handle)); 230 void uhci_poll __P((struct usbd_bus *)); 231 232 usbd_status uhci_device_request __P((usbd_request_handle reqh)); 233 234 void uhci_add_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 235 void uhci_remove_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 236 usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 237 struct uhci_pipe *pipe, int ival)); 238 239 void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 240 void uhci_noop __P((usbd_pipe_handle pipe)); 241 242 #ifdef UHCI_DEBUG 243 static void uhci_dumpregs __P((uhci_softc_t *)); 244 void uhci_dump_tds __P((uhci_soft_td_t *)); 245 void uhci_dump_qh __P((uhci_soft_qh_t *)); 246 void uhci_dump __P((void)); 247 void uhci_dump_td __P((uhci_soft_td_t *)); 248 #endif 249 250 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 251 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 252 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 253 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 254 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 255 256 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 257 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 258 259 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 260 261 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 262 263 #define UHCI_INTR_ENDPT 1 264 265 struct usbd_bus_methods uhci_bus_methods = { 266 uhci_open, 267 uhci_poll, 268 uhci_allocm, 269 uhci_freem, 270 }; 271 272 struct usbd_pipe_methods uhci_root_ctrl_methods = { 273 uhci_root_ctrl_transfer, 274 uhci_root_ctrl_start, 275 uhci_root_ctrl_abort, 276 uhci_root_ctrl_close, 277 uhci_noop, 278 0, 279 }; 280 281 struct usbd_pipe_methods uhci_root_intr_methods = { 282 uhci_root_intr_transfer, 283 uhci_root_intr_start, 284 uhci_root_intr_abort, 285 uhci_root_intr_close, 286 uhci_noop, 287 uhci_root_intr_done, 288 }; 289 290 struct usbd_pipe_methods uhci_device_ctrl_methods = { 291 uhci_device_ctrl_transfer, 292 uhci_device_ctrl_start, 293 uhci_device_ctrl_abort, 294 uhci_device_ctrl_close, 295 uhci_noop, 296 uhci_device_ctrl_done, 297 }; 298 299 struct usbd_pipe_methods uhci_device_intr_methods = { 300 uhci_device_intr_transfer, 301 uhci_device_intr_start, 302 uhci_device_intr_abort, 303 uhci_device_intr_close, 304 uhci_device_clear_toggle, 305 uhci_device_intr_done, 306 }; 307 308 struct usbd_pipe_methods uhci_device_bulk_methods = { 309 uhci_device_bulk_transfer, 310 uhci_device_bulk_start, 311 uhci_device_bulk_abort, 312 uhci_device_bulk_close, 313 uhci_device_clear_toggle, 314 uhci_device_bulk_done, 315 }; 316 317 struct usbd_pipe_methods uhci_device_isoc_methods = { 318 uhci_device_isoc_transfer, 319 uhci_device_isoc_start, 320 uhci_device_isoc_abort, 321 uhci_device_isoc_close, 322 uhci_noop, 323 uhci_device_isoc_done, 324 }; 325 326 void 327 uhci_busreset(sc) 328 uhci_softc_t *sc; 329 { 330 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 331 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 332 UHCICMD(sc, 0); /* do nothing */ 333 } 334 335 usbd_status 336 uhci_init(sc) 337 uhci_softc_t *sc; 338 { 339 usbd_status r; 340 int i, j; 341 uhci_soft_qh_t *csqh, *bsqh, *sqh; 342 uhci_soft_td_t *std; 343 344 DPRINTFN(1,("uhci_init: start\n")); 345 346 #if defined(UHCI_DEBUG) 347 if (uhcidebug > 2) 348 uhci_dumpregs(sc); 349 #endif 350 351 uhci_run(sc, 0); /* stop the controller */ 352 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 353 354 uhci_busreset(sc); 355 356 /* Allocate and initialize real frame array. */ 357 r = usb_allocmem(&sc->sc_bus, 358 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 359 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 360 if (r != USBD_NORMAL_COMPLETION) 361 return (r); 362 sc->sc_pframes = KERNADDR(&sc->sc_dma); 363 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 364 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 365 366 /* Allocate the dummy QH where bulk traffic will be queued. */ 367 bsqh = uhci_alloc_sqh(sc); 368 if (!bsqh) 369 return (USBD_NOMEM); 370 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 371 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 372 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 373 374 /* Allocate the dummy QH where control traffic will be queued. */ 375 csqh = uhci_alloc_sqh(sc); 376 if (!csqh) 377 return (USBD_NOMEM); 378 csqh->hlink = bsqh; 379 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 380 csqh->qh.qh_elink = LE(UHCI_PTR_T); 381 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 382 383 /* 384 * Make all (virtual) frame list pointers point to the interrupt 385 * queue heads and the interrupt queue heads at the control 386 * queue head and point the physical frame list to the virtual. 387 */ 388 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 389 std = uhci_alloc_std(sc); 390 sqh = uhci_alloc_sqh(sc); 391 if (!std || !sqh) 392 return (USBD_NOMEM); 393 std->link.sqh = sqh; 394 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 395 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 396 std->td.td_token = LE(0); 397 std->td.td_buffer = LE(0); 398 sqh->hlink = csqh; 399 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 400 sqh->elink = 0; 401 sqh->qh.qh_elink = LE(UHCI_PTR_T); 402 sc->sc_vframes[i].htd = std; 403 sc->sc_vframes[i].etd = std; 404 sc->sc_vframes[i].hqh = sqh; 405 sc->sc_vframes[i].eqh = sqh; 406 for (j = i; 407 j < UHCI_FRAMELIST_COUNT; 408 j += UHCI_VFRAMELIST_COUNT) 409 sc->sc_pframes[j] = LE(std->physaddr); 410 } 411 412 LIST_INIT(&sc->sc_intrhead); 413 414 /* Set up the bus struct. */ 415 sc->sc_bus.methods = &uhci_bus_methods; 416 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 417 418 sc->sc_suspend = PWR_RESUME; 419 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 420 421 DPRINTFN(1,("uhci_init: enabling\n")); 422 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 423 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 424 425 return (uhci_run(sc, 1)); /* and here we go... */ 426 } 427 428 int 429 uhci_activate(self, act) 430 device_ptr_t self; 431 enum devact act; 432 { 433 struct uhci_softc *sc = (struct uhci_softc *)self; 434 int rv = 0; 435 436 switch (act) { 437 case DVACT_ACTIVATE: 438 return (EOPNOTSUPP); 439 break; 440 441 case DVACT_DEACTIVATE: 442 if (sc->sc_child != NULL) 443 rv = config_deactivate(sc->sc_child); 444 break; 445 } 446 return (rv); 447 } 448 449 int 450 uhci_detach(sc, flags) 451 struct uhci_softc *sc; 452 int flags; 453 { 454 int rv = 0; 455 456 if (sc->sc_child != NULL) 457 rv = config_detach(sc->sc_child, flags); 458 459 if (rv != 0) 460 return (rv); 461 462 powerhook_disestablish(sc->sc_powerhook); 463 /* free data structures XXX */ 464 465 return (rv); 466 } 467 468 usbd_status 469 uhci_allocm(bus, dma, size) 470 struct usbd_bus *bus; 471 usb_dma_t *dma; 472 u_int32_t size; 473 { 474 #if defined(__NetBSD__) || defined(__OpenBSD__) 475 struct uhci_softc *sc = (struct uhci_softc *)bus; 476 #endif 477 478 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 479 } 480 481 void 482 uhci_freem(bus, dma) 483 struct usbd_bus *bus; 484 usb_dma_t *dma; 485 { 486 #if defined(__NetBSD__) || defined(__OpenBSD__) 487 struct uhci_softc *sc = (struct uhci_softc *)bus; 488 #endif 489 490 usb_freemem(&sc->sc_bus, dma); 491 } 492 493 #if defined(__NetBSD__) 494 /* 495 * Handle suspend/resume. 496 * 497 * We need to switch to polling mode here, because this routine is 498 * called from an intterupt context. This is all right since we 499 * are almost suspended anyway. 500 */ 501 void 502 uhci_power(why, v) 503 int why; 504 void *v; 505 { 506 uhci_softc_t *sc = v; 507 int cmd; 508 int s; 509 510 s = splusb(); 511 cmd = UREAD2(sc, UHCI_CMD); 512 513 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 514 sc, why, sc->sc_suspend, cmd)); 515 516 if (why != PWR_RESUME) { 517 #if defined(UHCI_DEBUG) 518 if (uhcidebug > 2) 519 uhci_dumpregs(sc); 520 #endif 521 if (sc->sc_has_timo) 522 usb_untimeout(uhci_timo, sc->sc_has_timo, 523 sc->sc_has_timo->timo_handle); 524 sc->sc_bus.use_polling++; 525 uhci_run(sc, 0); /* stop the controller */ 526 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 527 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 528 sc->sc_suspend = why; 529 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 530 } else { 531 /* 532 * XXX We should really do much more here in case the 533 * controller registers have been lost and BIOS has 534 * not restored them. 535 */ 536 #ifdef DIAGNOSTIC 537 if (sc->sc_bus.use_polling == 0) { 538 printf("uhci_power: weird, polling not set.\n"); 539 sc->sc_bus.use_polling = 1; 540 } 541 #endif 542 sc->sc_suspend = why; 543 if (cmd & UHCI_CMD_RS) 544 uhci_run(sc, 0); /* in case BIOS has started it */ 545 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 546 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 547 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 548 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 549 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 550 uhci_run(sc, 1); /* and start traffic again */ 551 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 552 sc->sc_bus.use_polling--; 553 if (sc->sc_has_timo) 554 usb_timeout(uhci_timo, sc->sc_has_timo, 555 sc->sc_ival, sc->sc_has_timo->timo_handle); 556 #if defined(UHCI_DEBUG) 557 if (uhcidebug > 2) 558 uhci_dumpregs(sc); 559 #endif 560 } 561 splx(s); 562 } 563 #endif /* defined(__NetBSD__) */ 564 565 #ifdef UHCI_DEBUG 566 static void 567 uhci_dumpregs(sc) 568 uhci_softc_t *sc; 569 { 570 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 571 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 572 USBDEVNAME(sc->sc_bus.bdev), 573 UREAD2(sc, UHCI_CMD), 574 UREAD2(sc, UHCI_STS), 575 UREAD2(sc, UHCI_INTR), 576 UREAD2(sc, UHCI_FRNUM), 577 UREAD4(sc, UHCI_FLBASEADDR), 578 UREAD1(sc, UHCI_SOF), 579 UREAD2(sc, UHCI_PORTSC1), 580 UREAD2(sc, UHCI_PORTSC2))); 581 } 582 583 void 584 uhci_dump_td(p) 585 uhci_soft_td_t *p; 586 { 587 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 588 "token=0x%08lx buffer=0x%08lx\n", 589 p, (long)p->physaddr, 590 (long)LE(p->td.td_link), 591 (long)LE(p->td.td_status), 592 (long)LE(p->td.td_token), 593 (long)LE(p->td.td_buffer))); 594 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 595 "D=%d,maxlen=%d\n", 596 (int)LE(p->td.td_link), 597 "\20\1T\2Q\3VF", 598 (int)LE(p->td.td_status), 599 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 600 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 601 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 602 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 603 UHCI_TD_GET_PID(LE(p->td.td_token)), 604 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 605 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 606 UHCI_TD_GET_DT(LE(p->td.td_token)), 607 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 608 } 609 610 void 611 uhci_dump_qh(p) 612 uhci_soft_qh_t *p; 613 { 614 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 615 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 616 } 617 618 619 #if 0 620 void 621 uhci_dump() 622 { 623 uhci_softc_t *sc = uhci; 624 625 uhci_dumpregs(sc); 626 printf("intrs=%d\n", sc->sc_bus.no_intrs); 627 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 628 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 629 } 630 #endif 631 632 void 633 uhci_dump_tds(std) 634 uhci_soft_td_t *std; 635 { 636 uhci_soft_td_t *p; 637 638 for(p = std; p; p = p->link.std) 639 uhci_dump_td(p); 640 } 641 #endif 642 643 /* 644 * This routine is executed periodically and simulates interrupts 645 * from the root controller interrupt pipe for port status change. 646 */ 647 void 648 uhci_timo(addr) 649 void *addr; 650 { 651 usbd_request_handle reqh = addr; 652 usbd_pipe_handle pipe = reqh->pipe; 653 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 654 int s; 655 u_char *p; 656 657 DPRINTFN(15, ("uhci_timo\n")); 658 659 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 660 661 p = KERNADDR(&reqh->dmabuf); 662 p[0] = 0; 663 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 664 p[0] |= 1<<1; 665 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 666 p[0] |= 1<<2; 667 if (p[0] == 0) 668 /* No change, try again in a while */ 669 return; 670 671 reqh->actlen = 1; 672 reqh->status = USBD_NORMAL_COMPLETION; 673 s = splusb(); 674 reqh->hcpriv = 0; 675 reqh->device->bus->intr_context++; 676 usb_transfer_complete(reqh); 677 reqh->device->bus->intr_context--; 678 splx(s); 679 } 680 681 void 682 uhci_root_intr_done(reqh) 683 usbd_request_handle reqh; 684 { 685 } 686 687 688 void 689 uhci_lock_frames(sc) 690 uhci_softc_t *sc; 691 { 692 int s = splusb(); 693 while (sc->sc_vflock) { 694 sc->sc_vflock |= UHCI_WANT_LOCK; 695 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 696 } 697 sc->sc_vflock = UHCI_HAS_LOCK; 698 splx(s); 699 } 700 701 void 702 uhci_unlock_frames(sc) 703 uhci_softc_t *sc; 704 { 705 int s = splusb(); 706 sc->sc_vflock &= ~UHCI_HAS_LOCK; 707 if (sc->sc_vflock & UHCI_WANT_LOCK) 708 wakeup(&sc->sc_vflock); 709 splx(s); 710 } 711 712 /* 713 * Allocate an interrupt information struct. A free list is kept 714 * for fast allocation. 715 */ 716 uhci_intr_info_t * 717 uhci_alloc_intr_info(sc) 718 uhci_softc_t *sc; 719 { 720 uhci_intr_info_t *ii; 721 722 ii = LIST_FIRST(&uhci_ii_free); 723 if (ii) 724 LIST_REMOVE(ii, list); 725 else { 726 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 727 } 728 ii->sc = sc; 729 #if defined(__FreeBSD__) 730 callout_handle_init(&ii->timeout_handle); 731 #endif 732 733 return ii; 734 } 735 736 void 737 uhci_free_intr_info(ii) 738 uhci_intr_info_t *ii; 739 { 740 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 741 } 742 743 /* Add control QH, called at splusb(). */ 744 void 745 uhci_add_ctrl(sc, sqh) 746 uhci_softc_t *sc; 747 uhci_soft_qh_t *sqh; 748 { 749 uhci_soft_qh_t *eqh; 750 751 SPLUSBCHECK; 752 753 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 754 eqh = sc->sc_ctl_end; 755 sqh->hlink = eqh->hlink; 756 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 757 eqh->hlink = sqh; 758 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 759 sc->sc_ctl_end = sqh; 760 } 761 762 /* Remove control QH, called at splusb(). */ 763 void 764 uhci_remove_ctrl(sc, sqh) 765 uhci_softc_t *sc; 766 uhci_soft_qh_t *sqh; 767 { 768 uhci_soft_qh_t *pqh; 769 770 SPLUSBCHECK; 771 772 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 773 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 774 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 775 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 776 printf("uhci_remove_ctrl: QH not found\n"); 777 return; 778 } 779 #else 780 ; 781 #endif 782 pqh->hlink = sqh->hlink; 783 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 784 if (sc->sc_ctl_end == sqh) 785 sc->sc_ctl_end = pqh; 786 } 787 788 /* Add bulk QH, called at splusb(). */ 789 void 790 uhci_add_bulk(sc, sqh) 791 uhci_softc_t *sc; 792 uhci_soft_qh_t *sqh; 793 { 794 uhci_soft_qh_t *eqh; 795 796 SPLUSBCHECK; 797 798 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 799 eqh = sc->sc_bulk_end; 800 sqh->hlink = eqh->hlink; 801 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 802 eqh->hlink = sqh; 803 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 804 sc->sc_bulk_end = sqh; 805 } 806 807 /* Remove bulk QH, called at splusb(). */ 808 void 809 uhci_remove_bulk(sc, sqh) 810 uhci_softc_t *sc; 811 uhci_soft_qh_t *sqh; 812 { 813 uhci_soft_qh_t *pqh; 814 815 SPLUSBCHECK; 816 817 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 818 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 819 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 820 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 821 printf("uhci_remove_bulk: QH not found\n"); 822 return; 823 } 824 #else 825 ; 826 #endif 827 pqh->hlink = sqh->hlink; 828 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 829 if (sc->sc_bulk_end == sqh) 830 sc->sc_bulk_end = pqh; 831 } 832 833 int 834 uhci_intr(arg) 835 void *arg; 836 { 837 uhci_softc_t *sc = arg; 838 int status; 839 int ack; 840 uhci_intr_info_t *ii; 841 842 #if defined(UHCI_DEBUG) 843 if (uhcidebug > 15) { 844 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 845 uhci_dumpregs(sc); 846 } 847 #endif 848 849 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 850 if (sc->sc_suspend != PWR_RESUME) 851 printf("uhci_intr: suspended sts=0x%x\n", status); 852 #endif 853 854 status = UREAD2(sc, UHCI_STS); 855 ack = 0; 856 if (status & UHCI_STS_USBINT) 857 ack |= UHCI_STS_USBINT; 858 if (status & UHCI_STS_USBEI) 859 ack |= UHCI_STS_USBEI; 860 if (status & UHCI_STS_RD) { 861 ack |= UHCI_STS_RD; 862 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 863 } 864 if (status & UHCI_STS_HSE) { 865 ack |= UHCI_STS_HSE; 866 printf("%s: host controller process error\n", 867 USBDEVNAME(sc->sc_bus.bdev)); 868 } 869 if (status & UHCI_STS_HCPE) { 870 ack |= UHCI_STS_HCPE; 871 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 872 } 873 if (status & UHCI_STS_HCH) { 874 /* no acknowledge needed */ 875 printf("%s: host controller halted\n", 876 USBDEVNAME(sc->sc_bus.bdev)); 877 } 878 879 if (ack) /* acknowledge the ints */ 880 UWRITE2(sc, UHCI_STS, ack); 881 else /* nothing to acknowledge */ 882 return (0); 883 884 sc->sc_bus.intr_context++; 885 sc->sc_bus.no_intrs++; 886 887 /* 888 * Interrupts on UHCI really suck. When the host controller 889 * interrupts because a transfer is completed there is no 890 * way of knowing which transfer it was. You can scan down 891 * the TDs and QHs of the previous frame to limit the search, 892 * but that assumes that the interrupt was not delayed by more 893 * than 1 ms, which may not always be true (e.g. after debug 894 * output on a slow console). 895 * We scan all interrupt descriptors to see if any have 896 * completed. 897 */ 898 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 899 uhci_check_intr(sc, ii); 900 901 DPRINTFN(10, ("uhci_intr: exit\n")); 902 903 sc->sc_bus.intr_context--; 904 905 return (1); 906 } 907 908 /* Check for an interrupt. */ 909 void 910 uhci_check_intr(sc, ii) 911 uhci_softc_t *sc; 912 uhci_intr_info_t *ii; 913 { 914 uhci_soft_td_t *std, *lstd; 915 u_int32_t status; 916 917 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 918 #ifdef DIAGNOSTIC 919 if (!ii) { 920 printf("uhci_check_intr: no ii? %p\n", ii); 921 return; 922 } 923 #endif 924 if (!ii->stdstart) 925 return; 926 lstd = ii->stdend; 927 #ifdef DIAGNOSTIC 928 if (!lstd) { 929 printf("uhci_check_intr: std==0\n"); 930 return; 931 } 932 #endif 933 /* 934 * If the last TD is still active we need to check whether there 935 * is a an error somewhere in the middle, or whether there was a 936 * short packet (SPD and not ACTIVE). 937 */ 938 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 939 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 940 for (std = ii->stdstart; std != lstd; std = std->link.std) { 941 status = LE(std->td.td_status); 942 if ((status & UHCI_TD_STALLED) || 943 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 944 UHCI_TD_SPD) 945 goto done; 946 } 947 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 948 ii, ii->stdstart)); 949 return; 950 } 951 done: 952 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 953 uhci_idone(ii); 954 } 955 956 /* Called at splusb() */ 957 void 958 uhci_idone(ii) 959 uhci_intr_info_t *ii; 960 { 961 usbd_request_handle reqh = ii->reqh; 962 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 963 uhci_soft_td_t *std; 964 u_int32_t status; 965 int actlen; 966 967 #ifdef DIAGNOSTIC 968 { 969 int s = splhigh(); 970 if (ii->isdone) { 971 splx(s); 972 printf("uhci_idone: ii=%p is done!\n", ii); 973 return; 974 } 975 ii->isdone = 1; 976 splx(s); 977 } 978 #endif 979 980 if (reqh->status == USBD_CANCELLED || 981 reqh->status == USBD_TIMEOUT) { 982 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 983 return; 984 } 985 986 if (reqh->nframes) { 987 /* Isoc transfer, do things differently. */ 988 uhci_soft_td_t **stds = upipe->u.iso.stds; 989 int i, n, nframes; 990 991 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 992 993 nframes = reqh->nframes; 994 actlen = 0; 995 n = reqh->hcprivint; 996 for (i = 0; i < nframes; i++) { 997 std = stds[n]; 998 #ifdef UHCI_DEBUG 999 if (uhcidebug > 5) { 1000 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1001 uhci_dump_td(std); 1002 } 1003 #endif 1004 if (++n >= UHCI_VFRAMELIST_COUNT) 1005 n = 0; 1006 status = LE(std->td.td_status); 1007 actlen += UHCI_TD_GET_ACTLEN(status); 1008 } 1009 upipe->u.iso.inuse -= nframes; 1010 reqh->actlen = actlen; 1011 reqh->status = USBD_NORMAL_COMPLETION; 1012 reqh->hcpriv = ii; 1013 usb_transfer_complete(reqh); 1014 return; 1015 } 1016 1017 #ifdef UHCI_DEBUG 1018 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 1019 if (uhcidebug > 10) 1020 uhci_dump_tds(ii->stdstart); 1021 #endif 1022 1023 /* The transfer is done, compute actual length and status. */ 1024 /* XXX Is this correct for control xfers? */ 1025 actlen = 0; 1026 for (std = ii->stdstart; std; std = std->link.std) { 1027 status = LE(std->td.td_status); 1028 if (status & UHCI_TD_ACTIVE) 1029 break; 1030 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1031 UHCI_TD_PID_SETUP) 1032 actlen += UHCI_TD_GET_ACTLEN(status); 1033 } 1034 /* If there are left over TDs we need to update the toggle. */ 1035 if (std) 1036 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1037 1038 status &= UHCI_TD_ERROR; 1039 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1040 actlen, status)); 1041 reqh->actlen = actlen; 1042 if (status != 0) { 1043 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1044 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1045 "status 0x%b\n", 1046 reqh->pipe->device->address, 1047 reqh->pipe->endpoint->edesc->bEndpointAddress, 1048 (int)status, 1049 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1050 "STALLED\30ACTIVE")); 1051 if (status == UHCI_TD_STALLED) 1052 reqh->status = USBD_STALLED; 1053 else 1054 reqh->status = USBD_IOERROR; /* more info XXX */ 1055 } else { 1056 reqh->status = USBD_NORMAL_COMPLETION; 1057 } 1058 reqh->hcpriv = ii; 1059 usb_transfer_complete(reqh); 1060 } 1061 1062 /* 1063 * Called when a request does not complete. 1064 */ 1065 void 1066 uhci_timeout(addr) 1067 void *addr; 1068 { 1069 uhci_intr_info_t *ii = addr; 1070 1071 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1072 1073 ii->reqh->device->bus->intr_context++; 1074 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 1075 ii->reqh->device->bus->intr_context--; 1076 } 1077 1078 /* 1079 * Wait here until controller claims to have an interrupt. 1080 * Then call uhci_intr and return. Use timeout to avoid waiting 1081 * too long. 1082 * Only used during boot when interrupts are not enabled yet. 1083 */ 1084 void 1085 uhci_waitintr(sc, reqh) 1086 uhci_softc_t *sc; 1087 usbd_request_handle reqh; 1088 { 1089 int timo = reqh->timeout; 1090 uhci_intr_info_t *ii; 1091 1092 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1093 1094 reqh->status = USBD_IN_PROGRESS; 1095 for (; timo >= 0; timo--) { 1096 usb_delay_ms(&sc->sc_bus, 1); 1097 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1098 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1099 uhci_intr(sc); 1100 if (reqh->status != USBD_IN_PROGRESS) 1101 return; 1102 } 1103 } 1104 1105 /* Timeout */ 1106 DPRINTF(("uhci_waitintr: timeout\n")); 1107 for (ii = LIST_FIRST(&sc->sc_intrhead); 1108 ii && ii->reqh != reqh; 1109 ii = LIST_NEXT(ii, list)) 1110 ; 1111 #ifdef DIAGNOSTIC 1112 if (!ii) 1113 panic("uhci_waitintr: lost intr_info\n"); 1114 #endif 1115 uhci_idone(ii); 1116 } 1117 1118 void 1119 uhci_poll(bus) 1120 struct usbd_bus *bus; 1121 { 1122 uhci_softc_t *sc = (uhci_softc_t *)bus; 1123 1124 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1125 uhci_intr(sc); 1126 } 1127 1128 #if 0 1129 void 1130 uhci_reset(p) 1131 void *p; 1132 { 1133 uhci_softc_t *sc = p; 1134 int n; 1135 1136 UHCICMD(sc, UHCI_CMD_HCRESET); 1137 /* The reset bit goes low when the controller is done. */ 1138 for (n = 0; n < UHCI_RESET_TIMEOUT && 1139 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1140 delay(100); 1141 if (n >= UHCI_RESET_TIMEOUT) 1142 printf("%s: controller did not reset\n", 1143 USBDEVNAME(sc->sc_bus.bdev)); 1144 } 1145 #endif 1146 1147 usbd_status 1148 uhci_run(sc, run) 1149 uhci_softc_t *sc; 1150 int run; 1151 { 1152 int s, n, running; 1153 1154 run = run != 0; 1155 s = splusb(); 1156 DPRINTF(("uhci_run: setting run=%d\n", run)); 1157 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1158 for(n = 0; n < 10; n++) { 1159 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1160 /* return when we've entered the state we want */ 1161 if (run == running) { 1162 splx(s); 1163 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1164 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1165 return (USBD_NORMAL_COMPLETION); 1166 } 1167 usb_delay_ms(&sc->sc_bus, 1); 1168 } 1169 splx(s); 1170 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1171 run ? "start" : "stop"); 1172 return (USBD_IOERROR); 1173 } 1174 1175 /* 1176 * Memory management routines. 1177 * uhci_alloc_std allocates TDs 1178 * uhci_alloc_sqh allocates QHs 1179 * These two routines do their own free list management, 1180 * partly for speed, partly because allocating DMAable memory 1181 * has page size granularaity so much memory would be wasted if 1182 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1183 */ 1184 1185 uhci_soft_td_t * 1186 uhci_alloc_std(sc) 1187 uhci_softc_t *sc; 1188 { 1189 uhci_soft_td_t *std; 1190 usbd_status r; 1191 int i, offs; 1192 usb_dma_t dma; 1193 1194 if (!sc->sc_freetds) { 1195 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1196 r = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1197 UHCI_TD_ALIGN, &dma); 1198 if (r != USBD_NORMAL_COMPLETION) 1199 return (0); 1200 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1201 offs = i * UHCI_STD_SIZE; 1202 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1203 std->physaddr = DMAADDR(&dma) + offs; 1204 std->link.std = sc->sc_freetds; 1205 sc->sc_freetds = std; 1206 } 1207 } 1208 std = sc->sc_freetds; 1209 sc->sc_freetds = std->link.std; 1210 memset(&std->td, 0, sizeof(uhci_td_t)); 1211 return std; 1212 } 1213 1214 void 1215 uhci_free_std(sc, std) 1216 uhci_softc_t *sc; 1217 uhci_soft_td_t *std; 1218 { 1219 #ifdef DIAGNOSTIC 1220 #define TD_IS_FREE 0x12345678 1221 if (LE(std->td.td_token) == TD_IS_FREE) { 1222 printf("uhci_free_std: freeing free TD %p\n", std); 1223 return; 1224 } 1225 std->td.td_token = LE(TD_IS_FREE); 1226 #endif 1227 std->link.std = sc->sc_freetds; 1228 sc->sc_freetds = std; 1229 } 1230 1231 uhci_soft_qh_t * 1232 uhci_alloc_sqh(sc) 1233 uhci_softc_t *sc; 1234 { 1235 uhci_soft_qh_t *sqh; 1236 usbd_status r; 1237 int i, offs; 1238 usb_dma_t dma; 1239 1240 if (!sc->sc_freeqhs) { 1241 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1242 r = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1243 UHCI_QH_ALIGN, &dma); 1244 if (r != USBD_NORMAL_COMPLETION) 1245 return 0; 1246 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1247 offs = i * UHCI_SQH_SIZE; 1248 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1249 sqh->physaddr = DMAADDR(&dma) + offs; 1250 sqh->hlink = sc->sc_freeqhs; 1251 sc->sc_freeqhs = sqh; 1252 } 1253 } 1254 sqh = sc->sc_freeqhs; 1255 sc->sc_freeqhs = sqh->hlink; 1256 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1257 return (sqh); 1258 } 1259 1260 void 1261 uhci_free_sqh(sc, sqh) 1262 uhci_softc_t *sc; 1263 uhci_soft_qh_t *sqh; 1264 { 1265 sqh->hlink = sc->sc_freeqhs; 1266 sc->sc_freeqhs = sqh; 1267 } 1268 1269 #if 0 1270 /* 1271 * Enter a list of transfers onto a control queue. 1272 * Called at splusb() 1273 */ 1274 void 1275 uhci_enter_ctl_q(sc, sqh, ii) 1276 uhci_softc_t *sc; 1277 uhci_soft_qh_t *sqh; 1278 uhci_intr_info_t *ii; 1279 { 1280 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1281 1282 } 1283 #endif 1284 1285 void 1286 uhci_free_std_chain(sc, std, stdend) 1287 uhci_softc_t *sc; 1288 uhci_soft_td_t *std; 1289 uhci_soft_td_t *stdend; 1290 { 1291 uhci_soft_td_t *p; 1292 1293 for (; std != stdend; std = p) { 1294 p = std->link.std; 1295 uhci_free_std(sc, std); 1296 } 1297 } 1298 1299 usbd_status 1300 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1301 struct uhci_pipe *upipe; 1302 uhci_softc_t *sc; 1303 int len, rd, shortok; 1304 usb_dma_t *dma; 1305 uhci_soft_td_t **sp, **ep; 1306 { 1307 uhci_soft_td_t *p, *lastp; 1308 uhci_physaddr_t lastlink; 1309 int i, ntd, l, tog, maxp; 1310 u_int32_t status; 1311 int addr = upipe->pipe.device->address; 1312 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1313 1314 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1315 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1316 upipe->pipe.device->lowspeed, shortok)); 1317 if (len == 0) { 1318 *sp = *ep = 0; 1319 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1320 return (USBD_NORMAL_COMPLETION); 1321 } 1322 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1323 if (maxp == 0) { 1324 printf("uhci_alloc_std_chain: maxp=0\n"); 1325 return (USBD_INVAL); 1326 } 1327 ntd = (len + maxp - 1) / maxp; 1328 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1329 tog = upipe->nexttoggle; 1330 if (ntd % 2 == 0) 1331 tog ^= 1; 1332 upipe->nexttoggle = tog ^ 1; 1333 lastp = 0; 1334 lastlink = UHCI_PTR_T; 1335 ntd--; 1336 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1337 if (upipe->pipe.device->lowspeed) 1338 status |= UHCI_TD_LS; 1339 if (shortok) 1340 status |= UHCI_TD_SPD; 1341 for (i = ntd; i >= 0; i--) { 1342 p = uhci_alloc_std(sc); 1343 if (!p) { 1344 uhci_free_std_chain(sc, lastp, 0); 1345 return (USBD_NOMEM); 1346 } 1347 p->link.std = lastp; 1348 p->td.td_link = LE(lastlink); 1349 lastp = p; 1350 lastlink = p->physaddr; 1351 p->td.td_status = LE(status); 1352 if (i == ntd) { 1353 /* last TD */ 1354 l = len % maxp; 1355 if (l == 0) l = maxp; 1356 *ep = p; 1357 } else 1358 l = maxp; 1359 p->td.td_token = 1360 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1361 UHCI_TD_OUT(l, endpt, addr, tog)); 1362 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1363 tog ^= 1; 1364 } 1365 *sp = lastp; 1366 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1367 upipe->nexttoggle)); 1368 return (USBD_NORMAL_COMPLETION); 1369 } 1370 1371 void 1372 uhci_device_clear_toggle(pipe) 1373 usbd_pipe_handle pipe; 1374 { 1375 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1376 upipe->nexttoggle = 0; 1377 } 1378 1379 void 1380 uhci_noop(pipe) 1381 usbd_pipe_handle pipe; 1382 { 1383 } 1384 1385 usbd_status 1386 uhci_device_bulk_transfer(reqh) 1387 usbd_request_handle reqh; 1388 { 1389 usbd_status r; 1390 1391 /* Insert last in queue. */ 1392 r = usb_insert_transfer(reqh); 1393 if (r != USBD_NORMAL_COMPLETION) 1394 return (r); 1395 1396 /* Pipe isn't running, start first */ 1397 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1398 } 1399 1400 usbd_status 1401 uhci_device_bulk_start(reqh) 1402 usbd_request_handle reqh; 1403 { 1404 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1405 usbd_device_handle dev = upipe->pipe.device; 1406 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1407 uhci_intr_info_t *ii = upipe->iinfo; 1408 uhci_soft_td_t *data, *dataend; 1409 uhci_soft_qh_t *sqh; 1410 usbd_status r; 1411 int len, isread, endpt; 1412 int s; 1413 1414 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1415 reqh, reqh->length, reqh->flags)); 1416 1417 #ifdef DIAGNOSTIC 1418 if (reqh->rqflags & URQ_REQUEST) 1419 panic("uhci_device_bulk_transfer: a request\n"); 1420 #endif 1421 1422 len = reqh->length; 1423 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1424 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1425 sqh = upipe->u.bulk.sqh; 1426 1427 upipe->u.bulk.isread = isread; 1428 upipe->u.bulk.length = len; 1429 1430 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1431 reqh->flags & USBD_SHORT_XFER_OK, 1432 &reqh->dmabuf, &data, &dataend); 1433 if (r != USBD_NORMAL_COMPLETION) 1434 return (r); 1435 dataend->td.td_status |= LE(UHCI_TD_IOC); 1436 1437 #ifdef UHCI_DEBUG 1438 if (uhcidebug > 8) { 1439 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1440 uhci_dump_tds(data); 1441 } 1442 #endif 1443 1444 /* Set up interrupt info. */ 1445 ii->reqh = reqh; 1446 ii->stdstart = data; 1447 ii->stdend = dataend; 1448 #if defined(__FreeBSD__) 1449 callout_handle_init(&ii->timeout_handle); 1450 #endif 1451 #ifdef DIAGNOSTIC 1452 ii->isdone = 0; 1453 #endif 1454 1455 sqh->elink = data; 1456 sqh->qh.qh_elink = LE(data->physaddr); 1457 sqh->intr_info = ii; 1458 1459 s = splusb(); 1460 uhci_add_bulk(sc, sqh); 1461 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1462 1463 if (reqh->timeout && !sc->sc_bus.use_polling) { 1464 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1465 ii->timeout_handle); 1466 } 1467 splx(s); 1468 1469 #ifdef UHCI_DEBUG 1470 if (uhcidebug > 10) { 1471 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1472 uhci_dump_tds(data); 1473 } 1474 #endif 1475 1476 if (sc->sc_bus.use_polling) 1477 uhci_waitintr(sc, reqh); 1478 1479 return (USBD_IN_PROGRESS); 1480 } 1481 1482 /* Abort a device bulk request. */ 1483 void 1484 uhci_device_bulk_abort(reqh) 1485 usbd_request_handle reqh; 1486 { 1487 DPRINTF(("uhci_device_bulk_abort:\n")); 1488 uhci_abort_req(reqh, USBD_CANCELLED); 1489 } 1490 1491 void 1492 uhci_abort_req(reqh, status) 1493 usbd_request_handle reqh; 1494 usbd_status status; 1495 { 1496 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1497 uhci_intr_info_t *ii = upipe->iinfo; 1498 uhci_soft_td_t *std; 1499 1500 /* Make interrupt routine ignore it, */ 1501 reqh->status = status; 1502 1503 /* don't timeout, */ 1504 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1505 1506 /* make hardware ignore it, */ 1507 for (std = ii->stdstart; std != 0; std = std->link.std) 1508 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1509 1510 reqh->hcpriv = ii; 1511 1512 /* make sure hardware has completed, */ 1513 if (reqh->device->bus->intr_context) { 1514 /* We have no process context, so we can't use tsleep(). */ 1515 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1516 } else { 1517 usb_delay_ms(reqh->pipe->device->bus, 1); 1518 /* and call final part of interrupt handler. */ 1519 uhci_abort_req_end(reqh); 1520 } 1521 } 1522 1523 void 1524 uhci_abort_req_end(v) 1525 void *v; 1526 { 1527 usbd_request_handle reqh = v; 1528 int s; 1529 1530 s = splusb(); 1531 usb_transfer_complete(reqh); 1532 splx(s); 1533 } 1534 1535 /* Close a device bulk pipe. */ 1536 void 1537 uhci_device_bulk_close(pipe) 1538 usbd_pipe_handle pipe; 1539 { 1540 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1541 usbd_device_handle dev = upipe->pipe.device; 1542 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1543 1544 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1545 uhci_free_intr_info(upipe->iinfo); 1546 /* XXX free other resources */ 1547 } 1548 1549 usbd_status 1550 uhci_device_ctrl_transfer(reqh) 1551 usbd_request_handle reqh; 1552 { 1553 usbd_status r; 1554 1555 /* Insert last in queue. */ 1556 r = usb_insert_transfer(reqh); 1557 if (r != USBD_NORMAL_COMPLETION) 1558 return (r); 1559 1560 /* Pipe isn't running, start first */ 1561 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1562 } 1563 1564 usbd_status 1565 uhci_device_ctrl_start(reqh) 1566 usbd_request_handle reqh; 1567 { 1568 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1569 usbd_status r; 1570 1571 #ifdef DIAGNOSTIC 1572 if (!(reqh->rqflags & URQ_REQUEST)) 1573 panic("uhci_device_ctrl_transfer: not a request\n"); 1574 #endif 1575 1576 r = uhci_device_request(reqh); 1577 if (r != USBD_NORMAL_COMPLETION) 1578 return (r); 1579 1580 if (sc->sc_bus.use_polling) 1581 uhci_waitintr(sc, reqh); 1582 return (USBD_IN_PROGRESS); 1583 } 1584 1585 usbd_status 1586 uhci_device_intr_transfer(reqh) 1587 usbd_request_handle reqh; 1588 { 1589 usbd_status r; 1590 1591 /* Insert last in queue. */ 1592 r = usb_insert_transfer(reqh); 1593 if (r != USBD_NORMAL_COMPLETION) 1594 return (r); 1595 1596 /* Pipe isn't running, start first */ 1597 return (uhci_device_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 1598 } 1599 1600 usbd_status 1601 uhci_device_intr_start(reqh) 1602 usbd_request_handle reqh; 1603 { 1604 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1605 usbd_device_handle dev = upipe->pipe.device; 1606 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1607 uhci_intr_info_t *ii = upipe->iinfo; 1608 uhci_soft_td_t *data, *dataend; 1609 uhci_soft_qh_t *sqh; 1610 usbd_status r; 1611 int i, s; 1612 1613 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1614 reqh, reqh->length, reqh->flags)); 1615 1616 #ifdef DIAGNOSTIC 1617 if (reqh->rqflags & URQ_REQUEST) 1618 panic("uhci_device_intr_transfer: a request\n"); 1619 #endif 1620 1621 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1622 reqh->flags & USBD_SHORT_XFER_OK, 1623 &reqh->dmabuf, &data, &dataend); 1624 if (r != USBD_NORMAL_COMPLETION) 1625 return (r); 1626 dataend->td.td_status |= LE(UHCI_TD_IOC); 1627 1628 #ifdef UHCI_DEBUG 1629 if (uhcidebug > 10) { 1630 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1631 uhci_dump_tds(data); 1632 uhci_dump_qh(upipe->u.intr.qhs[0]); 1633 } 1634 #endif 1635 1636 s = splusb(); 1637 /* Set up interrupt info. */ 1638 ii->reqh = reqh; 1639 ii->stdstart = data; 1640 ii->stdend = dataend; 1641 #if defined(__FreeBSD__) 1642 callout_handle_init(&ii->timeout_handle); 1643 #endif 1644 #ifdef DIAGNOSTIC 1645 ii->isdone = 0; 1646 #endif 1647 1648 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1649 upipe->u.intr.qhs[0])); 1650 for (i = 0; i < upipe->u.intr.npoll; i++) { 1651 sqh = upipe->u.intr.qhs[i]; 1652 sqh->elink = data; 1653 sqh->qh.qh_elink = LE(data->physaddr); 1654 } 1655 splx(s); 1656 1657 #ifdef UHCI_DEBUG 1658 if (uhcidebug > 10) { 1659 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1660 uhci_dump_tds(data); 1661 uhci_dump_qh(upipe->u.intr.qhs[0]); 1662 } 1663 #endif 1664 1665 return (USBD_IN_PROGRESS); 1666 } 1667 1668 /* Abort a device control request. */ 1669 void 1670 uhci_device_ctrl_abort(reqh) 1671 usbd_request_handle reqh; 1672 { 1673 DPRINTF(("uhci_device_ctrl_abort:\n")); 1674 uhci_abort_req(reqh, USBD_CANCELLED); 1675 } 1676 1677 /* Close a device control pipe. */ 1678 void 1679 uhci_device_ctrl_close(pipe) 1680 usbd_pipe_handle pipe; 1681 { 1682 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1683 1684 uhci_free_intr_info(upipe->iinfo); 1685 /* XXX free other resources */ 1686 } 1687 1688 /* Abort a device interrupt request. */ 1689 void 1690 uhci_device_intr_abort(reqh) 1691 usbd_request_handle reqh; 1692 { 1693 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1694 if (reqh->pipe->intrreqh == reqh) { 1695 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1696 reqh->pipe->intrreqh = 0; 1697 } 1698 uhci_abort_req(reqh, USBD_CANCELLED); 1699 } 1700 1701 /* Close a device interrupt pipe. */ 1702 void 1703 uhci_device_intr_close(pipe) 1704 usbd_pipe_handle pipe; 1705 { 1706 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1707 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1708 int i, s, npoll; 1709 1710 upipe->iinfo->stdstart = 0; /* inactive */ 1711 1712 /* Unlink descriptors from controller data structures. */ 1713 npoll = upipe->u.intr.npoll; 1714 uhci_lock_frames(sc); 1715 for (i = 0; i < npoll; i++) 1716 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1717 upipe->u.intr.qhs[i]); 1718 uhci_unlock_frames(sc); 1719 1720 /* 1721 * We now have to wait for any activity on the physical 1722 * descriptors to stop. 1723 */ 1724 usb_delay_ms(&sc->sc_bus, 2); 1725 1726 for(i = 0; i < npoll; i++) 1727 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1728 free(upipe->u.intr.qhs, M_USBHC); 1729 1730 s = splusb(); 1731 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1732 splx(s); 1733 uhci_free_intr_info(upipe->iinfo); 1734 1735 /* XXX free other resources */ 1736 } 1737 1738 usbd_status 1739 uhci_device_request(reqh) 1740 usbd_request_handle reqh; 1741 { 1742 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1743 usb_device_request_t *req = &reqh->request; 1744 usbd_device_handle dev = upipe->pipe.device; 1745 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1746 int addr = dev->address; 1747 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1748 uhci_intr_info_t *ii = upipe->iinfo; 1749 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1750 uhci_soft_qh_t *sqh; 1751 int len; 1752 u_int32_t ls; 1753 usbd_status r; 1754 int isread; 1755 int s; 1756 1757 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1758 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1759 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1760 UGETW(req->wIndex), UGETW(req->wLength), 1761 addr, endpt)); 1762 1763 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1764 isread = req->bmRequestType & UT_READ; 1765 len = UGETW(req->wLength); 1766 1767 setup = upipe->u.ctl.setup; 1768 stat = upipe->u.ctl.stat; 1769 sqh = upipe->u.ctl.sqh; 1770 1771 /* Set up data transaction */ 1772 if (len != 0) { 1773 upipe->nexttoggle = 1; 1774 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1775 reqh->flags & USBD_SHORT_XFER_OK, 1776 &reqh->dmabuf, &data, &dataend); 1777 if (r != USBD_NORMAL_COMPLETION) 1778 return (r); 1779 next = data; 1780 dataend->link.std = stat; 1781 dataend->td.td_link = LE(stat->physaddr); 1782 } else { 1783 next = stat; 1784 } 1785 upipe->u.ctl.length = len; 1786 1787 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1788 1789 setup->link.std = next; 1790 setup->td.td_link = LE(next->physaddr); 1791 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1792 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1793 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1794 1795 stat->link.std = 0; 1796 stat->td.td_link = LE(UHCI_PTR_T); 1797 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1798 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1799 stat->td.td_token = 1800 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1801 UHCI_TD_IN (0, endpt, addr, 1)); 1802 stat->td.td_buffer = LE(0); 1803 1804 #ifdef UHCI_DEBUG 1805 if (uhcidebug > 20) { 1806 DPRINTF(("uhci_device_request: before transfer\n")); 1807 uhci_dump_tds(setup); 1808 } 1809 #endif 1810 1811 /* Set up interrupt info. */ 1812 ii->reqh = reqh; 1813 ii->stdstart = setup; 1814 ii->stdend = stat; 1815 #if defined(__FreeBSD__) 1816 callout_handle_init(&ii->timeout_handle); 1817 #endif 1818 #ifdef DIAGNOSTIC 1819 ii->isdone = 0; 1820 #endif 1821 1822 sqh->elink = setup; 1823 sqh->qh.qh_elink = LE(setup->physaddr); 1824 sqh->intr_info = ii; 1825 1826 s = splusb(); 1827 uhci_add_ctrl(sc, sqh); 1828 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1829 #ifdef UHCI_DEBUG 1830 if (uhcidebug > 12) { 1831 uhci_soft_td_t *std; 1832 uhci_soft_qh_t *xqh; 1833 uhci_soft_qh_t *sxqh; 1834 int maxqh = 0; 1835 uhci_physaddr_t link; 1836 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1837 for (std = sc->sc_vframes[0].htd, link = 0; 1838 (link & UHCI_PTR_Q) == 0; 1839 std = std->link.std) { 1840 link = LE(std->td.td_link); 1841 uhci_dump_td(std); 1842 } 1843 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1844 xqh; 1845 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1846 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1847 uhci_dump_qh(xqh); 1848 uhci_dump_qh(sxqh); 1849 } 1850 DPRINTF(("Enqueued QH:\n")); 1851 uhci_dump_qh(sqh); 1852 uhci_dump_tds(sqh->elink); 1853 } 1854 #endif 1855 if (reqh->timeout && !sc->sc_bus.use_polling) { 1856 usb_timeout(uhci_timeout, ii, 1857 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1858 } 1859 splx(s); 1860 1861 return (USBD_NORMAL_COMPLETION); 1862 } 1863 1864 usbd_status 1865 uhci_device_isoc_transfer(reqh) 1866 usbd_request_handle reqh; 1867 { 1868 usbd_status r; 1869 1870 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1871 1872 /* Put it on our queue, */ 1873 r = usb_insert_transfer(reqh); 1874 1875 /* bail out on error, */ 1876 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1877 return (r); 1878 1879 /* XXX should check inuse here */ 1880 1881 /* insert into schedule, */ 1882 uhci_device_isoc_enter(reqh); 1883 1884 /* and put on interrupt list if the pipe wasn't running */ 1885 if (r == USBD_NORMAL_COMPLETION) 1886 uhci_device_isoc_start(SIMPLEQ_FIRST(&reqh->pipe->queue)); 1887 1888 return (r); 1889 } 1890 1891 void 1892 uhci_device_isoc_enter(reqh) 1893 usbd_request_handle reqh; 1894 { 1895 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1896 usbd_device_handle dev = upipe->pipe.device; 1897 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1898 struct iso *iso = &upipe->u.iso; 1899 uhci_soft_td_t *std; 1900 u_int32_t buf, len, status; 1901 int s, i, next, nframes; 1902 1903 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1904 "nframes=%d\n", 1905 iso->inuse, iso->next, reqh, reqh->nframes)); 1906 1907 if (reqh->status == USBD_IN_PROGRESS) { 1908 /* This request has already been entered into the frame list */ 1909 } 1910 1911 #ifdef DIAGNOSTIC 1912 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1913 printf("uhci_device_isoc_enter: overflow!\n"); 1914 #endif 1915 1916 next = iso->next; 1917 if (next == -1) { 1918 /* Not in use yet, schedule it a few frames ahead. */ 1919 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1920 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1921 } 1922 1923 reqh->status = USBD_IN_PROGRESS; 1924 reqh->hcprivint = next; 1925 1926 buf = DMAADDR(&reqh->dmabuf); 1927 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1928 UHCI_TD_ACTIVE | 1929 UHCI_TD_IOS)); 1930 nframes = reqh->nframes; 1931 s = splusb(); 1932 for (i = 0; i < nframes; i++) { 1933 std = iso->stds[next]; 1934 if (++next >= UHCI_VFRAMELIST_COUNT) 1935 next = 0; 1936 len = reqh->frlengths[i]; 1937 std->td.td_buffer = LE(buf); 1938 if (i == nframes - 1) 1939 status |= LE(UHCI_TD_IOC); 1940 std->td.td_status = status; 1941 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1942 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1943 #ifdef UHCI_DEBUG 1944 if (uhcidebug > 5) { 1945 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1946 uhci_dump_td(std); 1947 } 1948 #endif 1949 buf += len; 1950 } 1951 iso->next = next; 1952 iso->inuse += reqh->nframes; 1953 1954 splx(s); 1955 } 1956 1957 usbd_status 1958 uhci_device_isoc_start(reqh) 1959 usbd_request_handle reqh; 1960 { 1961 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1962 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1963 uhci_intr_info_t *ii = upipe->iinfo; 1964 uhci_soft_td_t *end; 1965 int s, i; 1966 1967 #ifdef DIAGNOSTIC 1968 if (reqh->status != USBD_IN_PROGRESS) 1969 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1970 #endif 1971 1972 /* Find the last TD */ 1973 i = reqh->hcprivint + reqh->nframes; 1974 if (i >= UHCI_VFRAMELIST_COUNT) 1975 i -= UHCI_VFRAMELIST_COUNT; 1976 end = upipe->u.iso.stds[i]; 1977 1978 s = splusb(); 1979 1980 /* Set up interrupt info. */ 1981 ii->reqh = reqh; 1982 ii->stdstart = end; 1983 ii->stdend = end; 1984 #if defined(__FreeBSD__) 1985 callout_handle_init(&ii->timeout_handle); 1986 #endif 1987 #ifdef DIAGNOSTIC 1988 ii->isdone = 0; 1989 #endif 1990 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1991 1992 splx(s); 1993 1994 return (USBD_IN_PROGRESS); 1995 } 1996 1997 void 1998 uhci_device_isoc_abort(reqh) 1999 usbd_request_handle reqh; 2000 { 2001 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2002 uhci_intr_info_t *ii = upipe->iinfo; 2003 uhci_soft_td_t **stds = upipe->u.iso.stds; 2004 uhci_soft_td_t *std; 2005 int i, n, nframes; 2006 2007 /* Make interrupt routine ignore it, */ 2008 reqh->status = USBD_CANCELLED; 2009 2010 /* make hardware ignore it, */ 2011 nframes = reqh->nframes; 2012 n = reqh->hcprivint; 2013 for (i = 0; i < nframes; i++) { 2014 std = stds[n]; 2015 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2016 if (++n >= UHCI_VFRAMELIST_COUNT) 2017 n = 0; 2018 } 2019 2020 reqh->hcpriv = ii; 2021 2022 /* make sure hardware has completed, */ 2023 if (reqh->device->bus->intr_context) { 2024 /* We have no process context, so we can't use tsleep(). */ 2025 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 2026 } else { 2027 usb_delay_ms(reqh->pipe->device->bus, 1); 2028 /* and call final part of interrupt handler. */ 2029 uhci_abort_req_end(reqh); 2030 } 2031 } 2032 2033 void 2034 uhci_device_isoc_close(pipe) 2035 usbd_pipe_handle pipe; 2036 { 2037 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2038 usbd_device_handle dev = upipe->pipe.device; 2039 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2040 uhci_soft_td_t *std, *vstd; 2041 struct iso *iso; 2042 int i; 2043 2044 /* 2045 * Make sure all TDs are marked as inactive. 2046 * Wait for completion. 2047 * Unschedule. 2048 * Deallocate. 2049 */ 2050 iso = &upipe->u.iso; 2051 2052 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2053 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2054 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2055 2056 uhci_lock_frames(sc); 2057 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2058 std = iso->stds[i]; 2059 for (vstd = sc->sc_vframes[i].htd; 2060 vstd && vstd->link.std != std; 2061 vstd = vstd->link.std) 2062 ; 2063 if (!vstd) { 2064 /*panic*/ 2065 printf("uhci_device_isoc_close: %p not found\n", std); 2066 uhci_unlock_frames(sc); 2067 return; 2068 } 2069 vstd->link = std->link; 2070 vstd->td.td_link = std->td.td_link; 2071 uhci_free_std(sc, std); 2072 } 2073 uhci_unlock_frames(sc); 2074 2075 free(iso->stds, M_USBHC); 2076 } 2077 2078 usbd_status 2079 uhci_setup_isoc(pipe) 2080 usbd_pipe_handle pipe; 2081 { 2082 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2083 usbd_device_handle dev = upipe->pipe.device; 2084 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2085 int addr = upipe->pipe.device->address; 2086 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2087 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2088 uhci_soft_td_t *std, *vstd; 2089 u_int32_t token; 2090 struct iso *iso; 2091 int i; 2092 2093 iso = &upipe->u.iso; 2094 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2095 M_USBHC, M_WAITOK); 2096 2097 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2098 UHCI_TD_OUT(0, endpt, addr, 0)); 2099 2100 /* Allocate the TDs and mark as inactive; */ 2101 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2102 std = uhci_alloc_std(sc); 2103 if (std == 0) 2104 goto bad; 2105 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2106 std->td.td_token = token; 2107 iso->stds[i] = std; 2108 } 2109 2110 /* Insert TDs into schedule. */ 2111 uhci_lock_frames(sc); 2112 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2113 std = iso->stds[i]; 2114 vstd = sc->sc_vframes[i].htd; 2115 std->link = vstd->link; 2116 std->td.td_link = vstd->td.td_link; 2117 vstd->link.std = std; 2118 vstd->td.td_link = LE(std->physaddr); 2119 } 2120 uhci_unlock_frames(sc); 2121 2122 iso->next = -1; 2123 iso->inuse = 0; 2124 2125 return (USBD_NORMAL_COMPLETION); 2126 2127 bad: 2128 while (--i >= 0) 2129 uhci_free_std(sc, iso->stds[i]); 2130 free(iso->stds, M_USBHC); 2131 return (USBD_NOMEM); 2132 } 2133 2134 void 2135 uhci_device_isoc_done(reqh) 2136 usbd_request_handle reqh; 2137 { 2138 uhci_intr_info_t *ii = reqh->hcpriv; 2139 2140 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2141 2142 /* Turn off the interrupt since it is active even if the TD is not. */ 2143 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2144 2145 LIST_REMOVE(ii, list); /* remove from active list */ 2146 } 2147 2148 void 2149 uhci_device_intr_done(reqh) 2150 usbd_request_handle reqh; 2151 { 2152 uhci_intr_info_t *ii = reqh->hcpriv; 2153 uhci_softc_t *sc = ii->sc; 2154 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2155 uhci_soft_qh_t *sqh; 2156 int i, npoll; 2157 2158 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2159 2160 npoll = upipe->u.intr.npoll; 2161 for(i = 0; i < npoll; i++) { 2162 sqh = upipe->u.intr.qhs[i]; 2163 sqh->elink = 0; 2164 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2165 } 2166 uhci_free_std_chain(sc, ii->stdstart, 0); 2167 2168 /* XXX Wasteful. */ 2169 if (reqh->pipe->repeat) { 2170 uhci_soft_td_t *data, *dataend; 2171 2172 /* This alloc cannot fail since we freed the chain above. */ 2173 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2174 reqh->flags & USBD_SHORT_XFER_OK, 2175 &reqh->dmabuf, &data, &dataend); 2176 dataend->td.td_status |= LE(UHCI_TD_IOC); 2177 2178 #ifdef UHCI_DEBUG 2179 if (uhcidebug > 10) { 2180 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2181 uhci_dump_tds(data); 2182 uhci_dump_qh(upipe->u.intr.qhs[0]); 2183 } 2184 #endif 2185 2186 ii->stdstart = data; 2187 ii->stdend = dataend; 2188 #if defined(__FreeBSD__) 2189 callout_handle_init(&ii->timeout_handle); 2190 #endif 2191 #ifdef DIAGNOSTIC 2192 ii->isdone = 0; 2193 #endif 2194 for (i = 0; i < npoll; i++) { 2195 sqh = upipe->u.intr.qhs[i]; 2196 sqh->elink = data; 2197 sqh->qh.qh_elink = LE(data->physaddr); 2198 } 2199 } else { 2200 ii->stdstart = 0; /* mark as inactive */ 2201 } 2202 } 2203 2204 /* Deallocate request data structures */ 2205 void 2206 uhci_device_ctrl_done(reqh) 2207 usbd_request_handle reqh; 2208 { 2209 uhci_intr_info_t *ii = reqh->hcpriv; 2210 uhci_softc_t *sc = ii->sc; 2211 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2212 2213 #ifdef DIAGNOSTIC 2214 if (!(reqh->rqflags & URQ_REQUEST)) 2215 panic("uhci_ctrl_done: not a request\n"); 2216 #endif 2217 2218 LIST_REMOVE(ii, list); /* remove from active list */ 2219 2220 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2221 2222 if (upipe->u.ctl.length != 0) 2223 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2224 2225 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2226 } 2227 2228 /* Deallocate request data structures */ 2229 void 2230 uhci_device_bulk_done(reqh) 2231 usbd_request_handle reqh; 2232 { 2233 uhci_intr_info_t *ii = reqh->hcpriv; 2234 uhci_softc_t *sc = ii->sc; 2235 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2236 2237 LIST_REMOVE(ii, list); /* remove from active list */ 2238 2239 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2240 2241 uhci_free_std_chain(sc, ii->stdstart, 0); 2242 2243 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2244 } 2245 2246 /* Add interrupt QH, called with vflock. */ 2247 void 2248 uhci_add_intr(sc, n, sqh) 2249 uhci_softc_t *sc; 2250 int n; 2251 uhci_soft_qh_t *sqh; 2252 { 2253 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2254 uhci_soft_qh_t *eqh; 2255 2256 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2257 eqh = vf->eqh; 2258 sqh->hlink = eqh->hlink; 2259 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2260 eqh->hlink = sqh; 2261 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2262 vf->eqh = sqh; 2263 vf->bandwidth++; 2264 } 2265 2266 /* Remove interrupt QH, called with vflock. */ 2267 void 2268 uhci_remove_intr(sc, n, sqh) 2269 uhci_softc_t *sc; 2270 int n; 2271 uhci_soft_qh_t *sqh; 2272 { 2273 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2274 uhci_soft_qh_t *pqh; 2275 2276 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2277 2278 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2279 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2280 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2281 DPRINTF(("uhci_remove_intr: QH not found\n")); 2282 return; 2283 } 2284 #else 2285 ; 2286 #endif 2287 pqh->hlink = sqh->hlink; 2288 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2289 if (vf->eqh == sqh) 2290 vf->eqh = pqh; 2291 vf->bandwidth--; 2292 } 2293 2294 usbd_status 2295 uhci_device_setintr(sc, upipe, ival) 2296 uhci_softc_t *sc; 2297 struct uhci_pipe *upipe; 2298 int ival; 2299 { 2300 uhci_soft_qh_t *sqh; 2301 int i, npoll, s; 2302 u_int bestbw, bw, bestoffs, offs; 2303 2304 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2305 if (ival == 0) { 2306 printf("uhci_setintr: 0 interval\n"); 2307 return (USBD_INVAL); 2308 } 2309 2310 if (ival > UHCI_VFRAMELIST_COUNT) 2311 ival = UHCI_VFRAMELIST_COUNT; 2312 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2313 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2314 2315 upipe->u.intr.npoll = npoll; 2316 upipe->u.intr.qhs = 2317 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2318 2319 /* 2320 * Figure out which offset in the schedule that has most 2321 * bandwidth left over. 2322 */ 2323 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2324 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2325 for (bw = i = 0; i < npoll; i++) 2326 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2327 if (bw < bestbw) { 2328 bestbw = bw; 2329 bestoffs = offs; 2330 } 2331 } 2332 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2333 2334 upipe->iinfo->stdstart = 0; 2335 for(i = 0; i < npoll; i++) { 2336 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2337 sqh->elink = 0; 2338 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2339 sqh->pos = MOD(i * ival + bestoffs); 2340 sqh->intr_info = upipe->iinfo; 2341 } 2342 #undef MOD 2343 2344 s = splusb(); 2345 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2346 splx(s); 2347 2348 uhci_lock_frames(sc); 2349 /* Enter QHs into the controller data structures. */ 2350 for(i = 0; i < npoll; i++) 2351 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2352 upipe->u.intr.qhs[i]); 2353 uhci_unlock_frames(sc); 2354 2355 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2356 return (USBD_NORMAL_COMPLETION); 2357 } 2358 2359 /* Open a new pipe. */ 2360 usbd_status 2361 uhci_open(pipe) 2362 usbd_pipe_handle pipe; 2363 { 2364 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2365 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2366 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2367 usbd_status r; 2368 2369 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2370 pipe, pipe->device->address, 2371 ed->bEndpointAddress, sc->sc_addr)); 2372 if (pipe->device->address == sc->sc_addr) { 2373 switch (ed->bEndpointAddress) { 2374 case USB_CONTROL_ENDPOINT: 2375 pipe->methods = &uhci_root_ctrl_methods; 2376 break; 2377 case UE_DIR_IN | UHCI_INTR_ENDPT: 2378 pipe->methods = &uhci_root_intr_methods; 2379 break; 2380 default: 2381 return (USBD_INVAL); 2382 } 2383 } else { 2384 upipe->iinfo = uhci_alloc_intr_info(sc); 2385 if (upipe->iinfo == 0) 2386 return (USBD_NOMEM); 2387 switch (ed->bmAttributes & UE_XFERTYPE) { 2388 case UE_CONTROL: 2389 pipe->methods = &uhci_device_ctrl_methods; 2390 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2391 if (upipe->u.ctl.sqh == 0) 2392 goto bad; 2393 upipe->u.ctl.setup = uhci_alloc_std(sc); 2394 if (upipe->u.ctl.setup == 0) { 2395 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2396 goto bad; 2397 } 2398 upipe->u.ctl.stat = uhci_alloc_std(sc); 2399 if (upipe->u.ctl.stat == 0) { 2400 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2401 uhci_free_std(sc, upipe->u.ctl.setup); 2402 goto bad; 2403 } 2404 r = usb_allocmem(&sc->sc_bus, 2405 sizeof(usb_device_request_t), 2406 0, &upipe->u.ctl.reqdma); 2407 if (r != USBD_NORMAL_COMPLETION) { 2408 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2409 uhci_free_std(sc, upipe->u.ctl.setup); 2410 uhci_free_std(sc, upipe->u.ctl.stat); 2411 goto bad; 2412 } 2413 break; 2414 case UE_INTERRUPT: 2415 pipe->methods = &uhci_device_intr_methods; 2416 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2417 case UE_ISOCHRONOUS: 2418 pipe->methods = &uhci_device_isoc_methods; 2419 return (uhci_setup_isoc(pipe)); 2420 case UE_BULK: 2421 pipe->methods = &uhci_device_bulk_methods; 2422 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2423 if (upipe->u.bulk.sqh == 0) 2424 goto bad; 2425 break; 2426 } 2427 } 2428 return (USBD_NORMAL_COMPLETION); 2429 2430 bad: 2431 uhci_free_intr_info(upipe->iinfo); 2432 return (USBD_NOMEM); 2433 } 2434 2435 /* 2436 * Data structures and routines to emulate the root hub. 2437 */ 2438 usb_device_descriptor_t uhci_devd = { 2439 USB_DEVICE_DESCRIPTOR_SIZE, 2440 UDESC_DEVICE, /* type */ 2441 {0x00, 0x01}, /* USB version */ 2442 UCLASS_HUB, /* class */ 2443 USUBCLASS_HUB, /* subclass */ 2444 0, /* protocol */ 2445 64, /* max packet */ 2446 {0},{0},{0x00,0x01}, /* device id */ 2447 1,2,0, /* string indicies */ 2448 1 /* # of configurations */ 2449 }; 2450 2451 usb_config_descriptor_t uhci_confd = { 2452 USB_CONFIG_DESCRIPTOR_SIZE, 2453 UDESC_CONFIG, 2454 {USB_CONFIG_DESCRIPTOR_SIZE + 2455 USB_INTERFACE_DESCRIPTOR_SIZE + 2456 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2457 1, 2458 1, 2459 0, 2460 UC_SELF_POWERED, 2461 0 /* max power */ 2462 }; 2463 2464 usb_interface_descriptor_t uhci_ifcd = { 2465 USB_INTERFACE_DESCRIPTOR_SIZE, 2466 UDESC_INTERFACE, 2467 0, 2468 0, 2469 1, 2470 UCLASS_HUB, 2471 USUBCLASS_HUB, 2472 0, 2473 0 2474 }; 2475 2476 usb_endpoint_descriptor_t uhci_endpd = { 2477 USB_ENDPOINT_DESCRIPTOR_SIZE, 2478 UDESC_ENDPOINT, 2479 UE_DIR_IN | UHCI_INTR_ENDPT, 2480 UE_INTERRUPT, 2481 {8}, 2482 255 2483 }; 2484 2485 usb_hub_descriptor_t uhci_hubd_piix = { 2486 USB_HUB_DESCRIPTOR_SIZE, 2487 UDESC_HUB, 2488 2, 2489 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2490 50, /* power on to power good */ 2491 0, 2492 { 0x00 }, /* both ports are removable */ 2493 }; 2494 2495 int 2496 uhci_str(p, l, s) 2497 usb_string_descriptor_t *p; 2498 int l; 2499 char *s; 2500 { 2501 int i; 2502 2503 if (l == 0) 2504 return (0); 2505 p->bLength = 2 * strlen(s) + 2; 2506 if (l == 1) 2507 return (1); 2508 p->bDescriptorType = UDESC_STRING; 2509 l -= 2; 2510 for (i = 0; s[i] && l > 1; i++, l -= 2) 2511 USETW2(p->bString[i], 0, s[i]); 2512 return (2*i+2); 2513 } 2514 2515 /* 2516 * Simulate a hardware hub by handling all the necessary requests. 2517 */ 2518 usbd_status 2519 uhci_root_ctrl_transfer(reqh) 2520 usbd_request_handle reqh; 2521 { 2522 usbd_status r; 2523 2524 /* Insert last in queue. */ 2525 r = usb_insert_transfer(reqh); 2526 if (r != USBD_NORMAL_COMPLETION) 2527 return (r); 2528 2529 /* Pipe isn't running, start first */ 2530 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2531 } 2532 2533 usbd_status 2534 uhci_root_ctrl_start(reqh) 2535 usbd_request_handle reqh; 2536 { 2537 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2538 usb_device_request_t *req; 2539 void *buf = NULL; 2540 int port, x; 2541 int s, len, value, index, status, change, l, totlen = 0; 2542 usb_port_status_t ps; 2543 usbd_status r; 2544 2545 #ifdef DIAGNOSTIC 2546 if (!(reqh->rqflags & URQ_REQUEST)) 2547 panic("uhci_root_ctrl_transfer: not a request\n"); 2548 #endif 2549 req = &reqh->request; 2550 2551 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2552 req->bmRequestType, req->bRequest)); 2553 2554 len = UGETW(req->wLength); 2555 value = UGETW(req->wValue); 2556 index = UGETW(req->wIndex); 2557 2558 if (len != 0) 2559 buf = KERNADDR(&reqh->dmabuf); 2560 2561 #define C(x,y) ((x) | ((y) << 8)) 2562 switch(C(req->bRequest, req->bmRequestType)) { 2563 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2564 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2565 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2566 /* 2567 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2568 * for the integrated root hub. 2569 */ 2570 break; 2571 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2572 if (len > 0) { 2573 *(u_int8_t *)buf = sc->sc_conf; 2574 totlen = 1; 2575 } 2576 break; 2577 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2578 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2579 switch(value >> 8) { 2580 case UDESC_DEVICE: 2581 if ((value & 0xff) != 0) { 2582 r = USBD_IOERROR; 2583 goto ret; 2584 } 2585 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2586 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2587 memcpy(buf, &uhci_devd, l); 2588 break; 2589 case UDESC_CONFIG: 2590 if ((value & 0xff) != 0) { 2591 r = USBD_IOERROR; 2592 goto ret; 2593 } 2594 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2595 memcpy(buf, &uhci_confd, l); 2596 buf = (char *)buf + l; 2597 len -= l; 2598 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2599 totlen += l; 2600 memcpy(buf, &uhci_ifcd, l); 2601 buf = (char *)buf + l; 2602 len -= l; 2603 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2604 totlen += l; 2605 memcpy(buf, &uhci_endpd, l); 2606 break; 2607 case UDESC_STRING: 2608 if (len == 0) 2609 break; 2610 *(u_int8_t *)buf = 0; 2611 totlen = 1; 2612 switch (value & 0xff) { 2613 case 1: /* Vendor */ 2614 totlen = uhci_str(buf, len, sc->sc_vendor); 2615 break; 2616 case 2: /* Product */ 2617 totlen = uhci_str(buf, len, "UHCI root hub"); 2618 break; 2619 } 2620 break; 2621 default: 2622 r = USBD_IOERROR; 2623 goto ret; 2624 } 2625 break; 2626 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2627 if (len > 0) { 2628 *(u_int8_t *)buf = 0; 2629 totlen = 1; 2630 } 2631 break; 2632 case C(UR_GET_STATUS, UT_READ_DEVICE): 2633 if (len > 1) { 2634 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2635 totlen = 2; 2636 } 2637 break; 2638 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2639 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2640 if (len > 1) { 2641 USETW(((usb_status_t *)buf)->wStatus, 0); 2642 totlen = 2; 2643 } 2644 break; 2645 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2646 if (value >= USB_MAX_DEVICES) { 2647 r = USBD_IOERROR; 2648 goto ret; 2649 } 2650 sc->sc_addr = value; 2651 break; 2652 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2653 if (value != 0 && value != 1) { 2654 r = USBD_IOERROR; 2655 goto ret; 2656 } 2657 sc->sc_conf = value; 2658 break; 2659 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2660 break; 2661 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2662 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2663 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2664 r = USBD_IOERROR; 2665 goto ret; 2666 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2667 break; 2668 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2669 break; 2670 /* Hub requests */ 2671 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2672 break; 2673 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2674 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2675 "port=%d feature=%d\n", 2676 index, value)); 2677 if (index == 1) 2678 port = UHCI_PORTSC1; 2679 else if (index == 2) 2680 port = UHCI_PORTSC2; 2681 else { 2682 r = USBD_IOERROR; 2683 goto ret; 2684 } 2685 switch(value) { 2686 case UHF_PORT_ENABLE: 2687 x = UREAD2(sc, port); 2688 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2689 break; 2690 case UHF_PORT_SUSPEND: 2691 x = UREAD2(sc, port); 2692 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2693 break; 2694 case UHF_PORT_RESET: 2695 x = UREAD2(sc, port); 2696 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2697 break; 2698 case UHF_C_PORT_CONNECTION: 2699 x = UREAD2(sc, port); 2700 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2701 break; 2702 case UHF_C_PORT_ENABLE: 2703 x = UREAD2(sc, port); 2704 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2705 break; 2706 case UHF_C_PORT_OVER_CURRENT: 2707 x = UREAD2(sc, port); 2708 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2709 break; 2710 case UHF_C_PORT_RESET: 2711 sc->sc_isreset = 0; 2712 r = USBD_NORMAL_COMPLETION; 2713 goto ret; 2714 case UHF_PORT_CONNECTION: 2715 case UHF_PORT_OVER_CURRENT: 2716 case UHF_PORT_POWER: 2717 case UHF_PORT_LOW_SPEED: 2718 case UHF_C_PORT_SUSPEND: 2719 default: 2720 r = USBD_IOERROR; 2721 goto ret; 2722 } 2723 break; 2724 case C(UR_GET_BUS_STATE, 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 > 0) { 2734 *(u_int8_t *)buf = 2735 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2736 UHCI_PORTSC_LS_SHIFT; 2737 totlen = 1; 2738 } 2739 break; 2740 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2741 if (value != 0) { 2742 r = USBD_IOERROR; 2743 goto ret; 2744 } 2745 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2746 totlen = l; 2747 memcpy(buf, &uhci_hubd_piix, l); 2748 break; 2749 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2750 if (len != 4) { 2751 r = USBD_IOERROR; 2752 goto ret; 2753 } 2754 memset(buf, 0, len); 2755 totlen = len; 2756 break; 2757 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2758 if (index == 1) 2759 port = UHCI_PORTSC1; 2760 else if (index == 2) 2761 port = UHCI_PORTSC2; 2762 else { 2763 r = USBD_IOERROR; 2764 goto ret; 2765 } 2766 if (len != 4) { 2767 r = USBD_IOERROR; 2768 goto ret; 2769 } 2770 x = UREAD2(sc, port); 2771 status = change = 0; 2772 if (x & UHCI_PORTSC_CCS ) 2773 status |= UPS_CURRENT_CONNECT_STATUS; 2774 if (x & UHCI_PORTSC_CSC ) 2775 change |= UPS_C_CONNECT_STATUS; 2776 if (x & UHCI_PORTSC_PE ) 2777 status |= UPS_PORT_ENABLED; 2778 if (x & UHCI_PORTSC_POEDC) 2779 change |= UPS_C_PORT_ENABLED; 2780 if (x & UHCI_PORTSC_OCI ) 2781 status |= UPS_OVERCURRENT_INDICATOR; 2782 if (x & UHCI_PORTSC_OCIC ) 2783 change |= UPS_C_OVERCURRENT_INDICATOR; 2784 if (x & UHCI_PORTSC_SUSP ) 2785 status |= UPS_SUSPEND; 2786 if (x & UHCI_PORTSC_LSDA ) 2787 status |= UPS_LOW_SPEED; 2788 status |= UPS_PORT_POWER; 2789 if (sc->sc_isreset) 2790 change |= UPS_C_PORT_RESET; 2791 USETW(ps.wPortStatus, status); 2792 USETW(ps.wPortChange, change); 2793 l = min(len, sizeof ps); 2794 memcpy(buf, &ps, l); 2795 totlen = l; 2796 break; 2797 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2798 r = USBD_IOERROR; 2799 goto ret; 2800 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2801 break; 2802 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2803 if (index == 1) 2804 port = UHCI_PORTSC1; 2805 else if (index == 2) 2806 port = UHCI_PORTSC2; 2807 else { 2808 r = USBD_IOERROR; 2809 goto ret; 2810 } 2811 switch(value) { 2812 case UHF_PORT_ENABLE: 2813 x = UREAD2(sc, port); 2814 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2815 break; 2816 case UHF_PORT_SUSPEND: 2817 x = UREAD2(sc, port); 2818 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2819 break; 2820 case UHF_PORT_RESET: 2821 x = UREAD2(sc, port); 2822 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2823 usb_delay_ms(&sc->sc_bus, 10); 2824 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2825 delay(100); 2826 x = UREAD2(sc, port); 2827 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2828 delay(100); 2829 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2830 index, UREAD2(sc, port))); 2831 sc->sc_isreset = 1; 2832 break; 2833 case UHF_C_PORT_CONNECTION: 2834 case UHF_C_PORT_ENABLE: 2835 case UHF_C_PORT_OVER_CURRENT: 2836 case UHF_PORT_CONNECTION: 2837 case UHF_PORT_OVER_CURRENT: 2838 case UHF_PORT_POWER: 2839 case UHF_PORT_LOW_SPEED: 2840 case UHF_C_PORT_SUSPEND: 2841 case UHF_C_PORT_RESET: 2842 default: 2843 r = USBD_IOERROR; 2844 goto ret; 2845 } 2846 break; 2847 default: 2848 r = USBD_IOERROR; 2849 goto ret; 2850 } 2851 reqh->actlen = totlen; 2852 r = USBD_NORMAL_COMPLETION; 2853 ret: 2854 reqh->status = r; 2855 reqh->hcpriv = 0; 2856 s = splusb(); 2857 usb_transfer_complete(reqh); 2858 splx(s); 2859 return (USBD_IN_PROGRESS); 2860 } 2861 2862 /* Abort a root control request. */ 2863 void 2864 uhci_root_ctrl_abort(reqh) 2865 usbd_request_handle reqh; 2866 { 2867 /* Nothing to do, all transfers are syncronous. */ 2868 } 2869 2870 /* Close the root pipe. */ 2871 void 2872 uhci_root_ctrl_close(pipe) 2873 usbd_pipe_handle pipe; 2874 { 2875 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2876 2877 sc->sc_has_timo = 0; 2878 DPRINTF(("uhci_root_ctrl_close\n")); 2879 } 2880 2881 /* Abort a root interrupt request. */ 2882 void 2883 uhci_root_intr_abort(reqh) 2884 usbd_request_handle reqh; 2885 { 2886 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2887 2888 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2889 sc->sc_has_timo = 0; 2890 2891 if (reqh->pipe->intrreqh == reqh) { 2892 DPRINTF(("uhci_root_intr_abort: remove\n")); 2893 reqh->pipe->intrreqh = 0; 2894 } 2895 reqh->status = USBD_CANCELLED; 2896 usb_transfer_complete(reqh); 2897 } 2898 2899 usbd_status 2900 uhci_root_intr_transfer(reqh) 2901 usbd_request_handle reqh; 2902 { 2903 usbd_status r; 2904 2905 /* Insert last in queue. */ 2906 r = usb_insert_transfer(reqh); 2907 if (r != USBD_NORMAL_COMPLETION) 2908 return (r); 2909 2910 /* Pipe isn't running, start first */ 2911 return (uhci_root_intr_start(SIMPLEQ_FIRST(&reqh->pipe->queue))); 2912 } 2913 2914 /* Start a transfer on the root interrupt pipe */ 2915 usbd_status 2916 uhci_root_intr_start(reqh) 2917 usbd_request_handle reqh; 2918 { 2919 usbd_pipe_handle pipe = reqh->pipe; 2920 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2921 2922 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2923 reqh, reqh->length, reqh->flags)); 2924 2925 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2926 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2927 sc->sc_has_timo = reqh; 2928 return (USBD_IN_PROGRESS); 2929 } 2930 2931 /* Close the root interrupt pipe. */ 2932 void 2933 uhci_root_intr_close(pipe) 2934 usbd_pipe_handle pipe; 2935 { 2936 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2937 2938 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2939 sc->sc_has_timo = 0; 2940 DPRINTF(("uhci_root_intr_close\n")); 2941 } 2942 2943
Indexes created Tue Sep 30 20:09:53 GMT 2025