uhci.c revision 1.64
1 /* $NetBSD: uhci.c,v 1.64 1999/11/13 23:58:01 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 static void uhci_busreset __P((uhci_softc_t *)); 151 static void uhci_power __P((int, void *)); 152 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 153 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 154 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 155 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 156 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 157 static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 158 static void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 159 #if 0 160 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 161 uhci_intr_info_t *)); 162 static void uhci_exit_ctl_q __P((uhci_softc_t *, hci_soft_qh_t *)); 163 #endif 164 165 static void uhci_free_std_chain __P((uhci_softc_t *, 166 uhci_soft_td_t *, uhci_soft_td_t *)); 167 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 168 uhci_softc_t *, int, int, int, usb_dma_t *, 169 uhci_soft_td_t **, uhci_soft_td_t **)); 170 static void uhci_timo __P((void *)); 171 static void uhci_waitintr __P((uhci_softc_t *, 172 usbd_xfer_handle)); 173 static void uhci_check_intr __P((uhci_softc_t *, 174 uhci_intr_info_t *)); 175 static void uhci_idone __P((uhci_intr_info_t *)); 176 static void uhci_abort_req __P((usbd_xfer_handle, 177 usbd_status status)); 178 static void uhci_abort_req_end __P((void *v)); 179 static void uhci_timeout __P((void *)); 180 static void uhci_lock_frames __P((uhci_softc_t *)); 181 static void uhci_unlock_frames __P((uhci_softc_t *)); 182 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 183 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 184 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 185 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 186 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 187 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 188 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 189 190 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 191 u_int32_t)); 192 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 193 194 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 195 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 196 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 197 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 198 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 199 200 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 201 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 202 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 203 static void uhci_device_intr_close __P((usbd_pipe_handle)); 204 static void uhci_device_intr_done __P((usbd_xfer_handle)); 205 206 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 207 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 208 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 209 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 210 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 211 212 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 213 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 214 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 215 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 216 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 217 218 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 219 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 220 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 221 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 222 223 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 224 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 225 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 226 static void uhci_root_intr_close __P((usbd_pipe_handle)); 227 static void uhci_root_intr_done __P((usbd_xfer_handle)); 228 229 static usbd_status uhci_open __P((usbd_pipe_handle)); 230 static void uhci_poll __P((struct usbd_bus *)); 231 232 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 233 234 static void uhci_add_intr __P((uhci_softc_t *, int, 235 uhci_soft_qh_t *)); 236 static void uhci_remove_intr __P((uhci_softc_t *, int, 237 uhci_soft_qh_t *)); 238 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 239 struct uhci_pipe *pipe, int ival)); 240 241 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 242 static void uhci_noop __P((usbd_pipe_handle pipe)); 243 244 #ifdef UHCI_DEBUG 245 static void uhci_dumpregs __P((uhci_softc_t *)); 246 static void uhci_dump_tds __P((uhci_soft_td_t *)); 247 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 248 static void uhci_dump_td __P((uhci_soft_td_t *)); 249 #endif 250 251 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 252 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 253 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 254 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 255 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 256 257 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 258 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 259 260 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 261 262 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 263 264 #define UHCI_INTR_ENDPT 1 265 266 struct usbd_bus_methods uhci_bus_methods = { 267 uhci_open, 268 uhci_poll, 269 uhci_allocm, 270 uhci_freem, 271 }; 272 273 struct usbd_pipe_methods uhci_root_ctrl_methods = { 274 uhci_root_ctrl_transfer, 275 uhci_root_ctrl_start, 276 uhci_root_ctrl_abort, 277 uhci_root_ctrl_close, 278 uhci_noop, 279 0, 280 }; 281 282 struct usbd_pipe_methods uhci_root_intr_methods = { 283 uhci_root_intr_transfer, 284 uhci_root_intr_start, 285 uhci_root_intr_abort, 286 uhci_root_intr_close, 287 uhci_noop, 288 uhci_root_intr_done, 289 }; 290 291 struct usbd_pipe_methods uhci_device_ctrl_methods = { 292 uhci_device_ctrl_transfer, 293 uhci_device_ctrl_start, 294 uhci_device_ctrl_abort, 295 uhci_device_ctrl_close, 296 uhci_noop, 297 uhci_device_ctrl_done, 298 }; 299 300 struct usbd_pipe_methods uhci_device_intr_methods = { 301 uhci_device_intr_transfer, 302 uhci_device_intr_start, 303 uhci_device_intr_abort, 304 uhci_device_intr_close, 305 uhci_device_clear_toggle, 306 uhci_device_intr_done, 307 }; 308 309 struct usbd_pipe_methods uhci_device_bulk_methods = { 310 uhci_device_bulk_transfer, 311 uhci_device_bulk_start, 312 uhci_device_bulk_abort, 313 uhci_device_bulk_close, 314 uhci_device_clear_toggle, 315 uhci_device_bulk_done, 316 }; 317 318 struct usbd_pipe_methods uhci_device_isoc_methods = { 319 uhci_device_isoc_transfer, 320 uhci_device_isoc_start, 321 uhci_device_isoc_abort, 322 uhci_device_isoc_close, 323 uhci_noop, 324 uhci_device_isoc_done, 325 }; 326 327 void 328 uhci_busreset(sc) 329 uhci_softc_t *sc; 330 { 331 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 332 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 333 UHCICMD(sc, 0); /* do nothing */ 334 } 335 336 usbd_status 337 uhci_init(sc) 338 uhci_softc_t *sc; 339 { 340 usbd_status err; 341 int i, j; 342 uhci_soft_qh_t *csqh, *bsqh, *sqh; 343 uhci_soft_td_t *std; 344 345 DPRINTFN(1,("uhci_init: start\n")); 346 347 #if defined(UHCI_DEBUG) 348 if (uhcidebug > 2) 349 uhci_dumpregs(sc); 350 #endif 351 352 uhci_run(sc, 0); /* stop the controller */ 353 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 354 355 uhci_busreset(sc); 356 357 /* Allocate and initialize real frame array. */ 358 err = usb_allocmem(&sc->sc_bus, 359 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 360 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 361 if (err) 362 return (err); 363 sc->sc_pframes = KERNADDR(&sc->sc_dma); 364 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 365 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 366 367 /* Allocate the dummy QH where bulk traffic will be queued. */ 368 bsqh = uhci_alloc_sqh(sc); 369 if (bsqh == NULL) 370 return (USBD_NOMEM); 371 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 372 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 373 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 374 375 /* Allocate the dummy QH where control traffic will be queued. */ 376 csqh = uhci_alloc_sqh(sc); 377 if (csqh == NULL) 378 return (USBD_NOMEM); 379 csqh->hlink = bsqh; 380 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 381 csqh->qh.qh_elink = LE(UHCI_PTR_T); 382 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 383 384 /* 385 * Make all (virtual) frame list pointers point to the interrupt 386 * queue heads and the interrupt queue heads at the control 387 * queue head and point the physical frame list to the virtual. 388 */ 389 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 390 std = uhci_alloc_std(sc); 391 sqh = uhci_alloc_sqh(sc); 392 if (!std || !sqh) 393 return (USBD_NOMEM); 394 std->link.sqh = sqh; 395 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 396 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 397 std->td.td_token = LE(0); 398 std->td.td_buffer = LE(0); 399 sqh->hlink = csqh; 400 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 401 sqh->elink = 0; 402 sqh->qh.qh_elink = LE(UHCI_PTR_T); 403 sc->sc_vframes[i].htd = std; 404 sc->sc_vframes[i].etd = std; 405 sc->sc_vframes[i].hqh = sqh; 406 sc->sc_vframes[i].eqh = sqh; 407 for (j = i; 408 j < UHCI_FRAMELIST_COUNT; 409 j += UHCI_VFRAMELIST_COUNT) 410 sc->sc_pframes[j] = LE(std->physaddr); 411 } 412 413 LIST_INIT(&sc->sc_intrhead); 414 415 /* Set up the bus struct. */ 416 sc->sc_bus.methods = &uhci_bus_methods; 417 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 418 419 sc->sc_suspend = PWR_RESUME; 420 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 421 422 DPRINTFN(1,("uhci_init: enabling\n")); 423 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 424 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 425 426 return (uhci_run(sc, 1)); /* and here we go... */ 427 } 428 429 int 430 uhci_activate(self, act) 431 device_ptr_t self; 432 enum devact act; 433 { 434 struct uhci_softc *sc = (struct uhci_softc *)self; 435 int rv = 0; 436 437 switch (act) { 438 case DVACT_ACTIVATE: 439 return (EOPNOTSUPP); 440 break; 441 442 case DVACT_DEACTIVATE: 443 if (sc->sc_child != NULL) 444 rv = config_deactivate(sc->sc_child); 445 break; 446 } 447 return (rv); 448 } 449 450 int 451 uhci_detach(sc, flags) 452 struct uhci_softc *sc; 453 int flags; 454 { 455 int rv = 0; 456 457 if (sc->sc_child != NULL) 458 rv = config_detach(sc->sc_child, flags); 459 460 if (rv != 0) 461 return (rv); 462 463 powerhook_disestablish(sc->sc_powerhook); 464 /* free data structures XXX */ 465 466 return (rv); 467 } 468 469 usbd_status 470 uhci_allocm(bus, dma, size) 471 struct usbd_bus *bus; 472 usb_dma_t *dma; 473 u_int32_t size; 474 { 475 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 476 dma)); 477 } 478 479 void 480 uhci_freem(bus, dma) 481 struct usbd_bus *bus; 482 usb_dma_t *dma; 483 { 484 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 485 } 486 487 #if defined(__NetBSD__) 488 /* 489 * Handle suspend/resume. 490 * 491 * We need to switch to polling mode here, because this routine is 492 * called from an intterupt context. This is all right since we 493 * are almost suspended anyway. 494 */ 495 void 496 uhci_power(why, v) 497 int why; 498 void *v; 499 { 500 uhci_softc_t *sc = v; 501 int cmd; 502 int s; 503 504 s = splusb(); 505 cmd = UREAD2(sc, UHCI_CMD); 506 507 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 508 sc, why, sc->sc_suspend, cmd)); 509 510 if (why != PWR_RESUME) { 511 #if defined(UHCI_DEBUG) 512 if (uhcidebug > 2) 513 uhci_dumpregs(sc); 514 #endif 515 if (sc->sc_has_timo) 516 usb_untimeout(uhci_timo, sc->sc_has_timo, 517 sc->sc_has_timo->timo_handle); 518 sc->sc_bus.use_polling++; 519 uhci_run(sc, 0); /* stop the controller */ 520 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 521 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 522 sc->sc_suspend = why; 523 sc->sc_bus.use_polling--; 524 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 525 } else { 526 /* 527 * XXX We should really do much more here in case the 528 * controller registers have been lost and BIOS has 529 * not restored them. 530 */ 531 #ifdef DIAGNOSTIC 532 if (sc->sc_suspend == PWR_RESUME) 533 printf("uhci_power: weird, resume without suspend.\n"); 534 #endif 535 sc->sc_bus.use_polling++; 536 sc->sc_suspend = why; 537 if (cmd & UHCI_CMD_RS) 538 uhci_run(sc, 0); /* in case BIOS has started it */ 539 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 540 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 541 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 542 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 543 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 544 uhci_run(sc, 1); /* and start traffic again */ 545 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 546 sc->sc_bus.use_polling--; 547 if (sc->sc_has_timo) 548 usb_timeout(uhci_timo, sc->sc_has_timo, 549 sc->sc_ival, sc->sc_has_timo->timo_handle); 550 #if defined(UHCI_DEBUG) 551 if (uhcidebug > 2) 552 uhci_dumpregs(sc); 553 #endif 554 } 555 splx(s); 556 } 557 #endif /* defined(__NetBSD__) */ 558 559 #ifdef UHCI_DEBUG 560 static void 561 uhci_dumpregs(sc) 562 uhci_softc_t *sc; 563 { 564 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 565 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 566 USBDEVNAME(sc->sc_bus.bdev), 567 UREAD2(sc, UHCI_CMD), 568 UREAD2(sc, UHCI_STS), 569 UREAD2(sc, UHCI_INTR), 570 UREAD2(sc, UHCI_FRNUM), 571 UREAD4(sc, UHCI_FLBASEADDR), 572 UREAD1(sc, UHCI_SOF), 573 UREAD2(sc, UHCI_PORTSC1), 574 UREAD2(sc, UHCI_PORTSC2))); 575 } 576 577 void 578 uhci_dump_td(p) 579 uhci_soft_td_t *p; 580 { 581 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 582 "token=0x%08lx buffer=0x%08lx\n", 583 p, (long)p->physaddr, 584 (long)LE(p->td.td_link), 585 (long)LE(p->td.td_status), 586 (long)LE(p->td.td_token), 587 (long)LE(p->td.td_buffer))); 588 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 589 "D=%d,maxlen=%d\n", 590 (int)LE(p->td.td_link), 591 "\20\1T\2Q\3VF", 592 (int)LE(p->td.td_status), 593 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 594 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 595 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 596 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 597 UHCI_TD_GET_PID(LE(p->td.td_token)), 598 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 599 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 600 UHCI_TD_GET_DT(LE(p->td.td_token)), 601 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 602 } 603 604 void 605 uhci_dump_qh(p) 606 uhci_soft_qh_t *p; 607 { 608 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 609 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 610 } 611 612 613 #if 0 614 void 615 uhci_dump() 616 { 617 uhci_softc_t *sc = uhci; 618 619 uhci_dumpregs(sc); 620 printf("intrs=%d\n", sc->sc_bus.no_intrs); 621 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 622 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 623 } 624 #endif 625 626 void 627 uhci_dump_tds(std) 628 uhci_soft_td_t *std; 629 { 630 uhci_soft_td_t *p; 631 632 for(p = std; p != NULL; p = p->link.std) 633 uhci_dump_td(p); 634 } 635 #endif 636 637 /* 638 * This routine is executed periodically and simulates interrupts 639 * from the root controller interrupt pipe for port status change. 640 */ 641 void 642 uhci_timo(addr) 643 void *addr; 644 { 645 usbd_xfer_handle xfer = addr; 646 usbd_pipe_handle pipe = xfer->pipe; 647 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 648 int s; 649 u_char *p; 650 651 DPRINTFN(15, ("uhci_timo\n")); 652 653 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 654 655 p = KERNADDR(&xfer->dmabuf); 656 p[0] = 0; 657 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 658 p[0] |= 1<<1; 659 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 660 p[0] |= 1<<2; 661 if (p[0] == 0) 662 /* No change, try again in a while */ 663 return; 664 665 xfer->actlen = 1; 666 xfer->status = USBD_NORMAL_COMPLETION; 667 s = splusb(); 668 xfer->hcpriv = 0; 669 xfer->device->bus->intr_context++; 670 usb_transfer_complete(xfer); 671 xfer->device->bus->intr_context--; 672 splx(s); 673 } 674 675 void 676 uhci_root_intr_done(xfer) 677 usbd_xfer_handle xfer; 678 { 679 } 680 681 682 void 683 uhci_lock_frames(sc) 684 uhci_softc_t *sc; 685 { 686 int s = splusb(); 687 688 while (sc->sc_vflock) { 689 sc->sc_vflock |= UHCI_WANT_LOCK; 690 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 691 } 692 sc->sc_vflock = UHCI_HAS_LOCK; 693 splx(s); 694 } 695 696 void 697 uhci_unlock_frames(sc) 698 uhci_softc_t *sc; 699 { 700 int s = splusb(); 701 702 sc->sc_vflock &= ~UHCI_HAS_LOCK; 703 if (sc->sc_vflock & UHCI_WANT_LOCK) 704 wakeup(&sc->sc_vflock); 705 splx(s); 706 } 707 708 /* 709 * Allocate an interrupt information struct. A free list is kept 710 * for fast allocation. 711 */ 712 uhci_intr_info_t * 713 uhci_alloc_intr_info(sc) 714 uhci_softc_t *sc; 715 { 716 uhci_intr_info_t *ii; 717 718 ii = LIST_FIRST(&uhci_ii_free); 719 if (ii) 720 LIST_REMOVE(ii, list); 721 else { 722 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 723 } 724 ii->sc = sc; 725 #if defined(__FreeBSD__) 726 callout_handle_init(&ii->timeout_handle); 727 #endif 728 729 return ii; 730 } 731 732 void 733 uhci_free_intr_info(ii) 734 uhci_intr_info_t *ii; 735 { 736 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 737 } 738 739 /* Add control QH, called at splusb(). */ 740 void 741 uhci_add_ctrl(sc, sqh) 742 uhci_softc_t *sc; 743 uhci_soft_qh_t *sqh; 744 { 745 uhci_soft_qh_t *eqh; 746 747 SPLUSBCHECK; 748 749 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 750 eqh = sc->sc_ctl_end; 751 sqh->hlink = eqh->hlink; 752 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 753 eqh->hlink = sqh; 754 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 755 sc->sc_ctl_end = sqh; 756 } 757 758 /* Remove control QH, called at splusb(). */ 759 void 760 uhci_remove_ctrl(sc, sqh) 761 uhci_softc_t *sc; 762 uhci_soft_qh_t *sqh; 763 { 764 uhci_soft_qh_t *pqh; 765 766 SPLUSBCHECK; 767 768 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 769 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 770 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 771 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 772 printf("uhci_remove_ctrl: QH not found\n"); 773 return; 774 } 775 #else 776 ; 777 #endif 778 pqh->hlink = sqh->hlink; 779 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 780 if (sc->sc_ctl_end == sqh) 781 sc->sc_ctl_end = pqh; 782 } 783 784 /* Add bulk QH, called at splusb(). */ 785 void 786 uhci_add_bulk(sc, sqh) 787 uhci_softc_t *sc; 788 uhci_soft_qh_t *sqh; 789 { 790 uhci_soft_qh_t *eqh; 791 792 SPLUSBCHECK; 793 794 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 795 eqh = sc->sc_bulk_end; 796 sqh->hlink = eqh->hlink; 797 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 798 eqh->hlink = sqh; 799 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 800 sc->sc_bulk_end = sqh; 801 } 802 803 /* Remove bulk QH, called at splusb(). */ 804 void 805 uhci_remove_bulk(sc, sqh) 806 uhci_softc_t *sc; 807 uhci_soft_qh_t *sqh; 808 { 809 uhci_soft_qh_t *pqh; 810 811 SPLUSBCHECK; 812 813 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 814 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 815 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 816 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 817 printf("uhci_remove_bulk: QH not found\n"); 818 return; 819 } 820 #else 821 ; 822 #endif 823 pqh->hlink = sqh->hlink; 824 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 825 if (sc->sc_bulk_end == sqh) 826 sc->sc_bulk_end = pqh; 827 } 828 829 int 830 uhci_intr(arg) 831 void *arg; 832 { 833 uhci_softc_t *sc = arg; 834 int status; 835 int ack; 836 uhci_intr_info_t *ii; 837 838 #if defined(UHCI_DEBUG) 839 if (uhcidebug > 15) { 840 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 841 uhci_dumpregs(sc); 842 } 843 #endif 844 845 status = UREAD2(sc, UHCI_STS); 846 if (status == 0) /* The interrupt was not for us. */ 847 return (0); 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 ack = 0; 855 if (status & UHCI_STS_USBINT) 856 ack |= UHCI_STS_USBINT; 857 if (status & UHCI_STS_USBEI) 858 ack |= UHCI_STS_USBEI; 859 if (status & UHCI_STS_RD) { 860 ack |= UHCI_STS_RD; 861 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 862 } 863 if (status & UHCI_STS_HSE) { 864 ack |= UHCI_STS_HSE; 865 printf("%s: host controller process error\n", 866 USBDEVNAME(sc->sc_bus.bdev)); 867 } 868 if (status & UHCI_STS_HCPE) { 869 ack |= UHCI_STS_HCPE; 870 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 871 } 872 if (status & UHCI_STS_HCH) { 873 /* no acknowledge needed */ 874 printf("%s: host controller halted\n", 875 USBDEVNAME(sc->sc_bus.bdev)); 876 } 877 878 if (ack) /* acknowledge the ints */ 879 UWRITE2(sc, UHCI_STS, ack); 880 else /* nothing to acknowledge */ 881 return (0); 882 883 sc->sc_bus.intr_context++; 884 sc->sc_bus.no_intrs++; 885 886 /* 887 * Interrupts on UHCI really suck. When the host controller 888 * interrupts because a transfer is completed there is no 889 * way of knowing which transfer it was. You can scan down 890 * the TDs and QHs of the previous frame to limit the search, 891 * but that assumes that the interrupt was not delayed by more 892 * than 1 ms, which may not always be true (e.g. after debug 893 * output on a slow console). 894 * We scan all interrupt descriptors to see if any have 895 * completed. 896 */ 897 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 898 uhci_check_intr(sc, ii); 899 900 DPRINTFN(10, ("uhci_intr: exit\n")); 901 902 sc->sc_bus.intr_context--; 903 904 return (1); 905 } 906 907 /* Check for an interrupt. */ 908 void 909 uhci_check_intr(sc, ii) 910 uhci_softc_t *sc; 911 uhci_intr_info_t *ii; 912 { 913 uhci_soft_td_t *std, *lstd; 914 u_int32_t status; 915 916 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 917 #ifdef DIAGNOSTIC 918 if (ii == NULL) { 919 printf("uhci_check_intr: no ii? %p\n", ii); 920 return; 921 } 922 #endif 923 if (ii->stdstart == NULL) 924 return; 925 lstd = ii->stdend; 926 #ifdef DIAGNOSTIC 927 if (lstd == NULL) { 928 printf("uhci_check_intr: std==0\n"); 929 return; 930 } 931 #endif 932 /* 933 * If the last TD is still active we need to check whether there 934 * is a an error somewhere in the middle, or whether there was a 935 * short packet (SPD and not ACTIVE). 936 */ 937 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 938 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 939 for (std = ii->stdstart; std != lstd; std = std->link.std) { 940 status = LE(std->td.td_status); 941 if ((status & UHCI_TD_STALLED) || 942 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 943 UHCI_TD_SPD) 944 goto done; 945 } 946 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 947 ii, ii->stdstart)); 948 return; 949 } 950 done: 951 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 952 uhci_idone(ii); 953 } 954 955 /* Called at splusb() */ 956 void 957 uhci_idone(ii) 958 uhci_intr_info_t *ii; 959 { 960 usbd_xfer_handle xfer = ii->xfer; 961 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 962 uhci_soft_td_t *std; 963 u_int32_t status, nstatus; 964 int actlen; 965 966 #ifdef DIAGNOSTIC 967 { 968 int s = splhigh(); 969 if (ii->isdone) { 970 splx(s); 971 printf("uhci_idone: ii=%p is done!\n", ii); 972 return; 973 } 974 ii->isdone = 1; 975 splx(s); 976 } 977 #endif 978 979 if (xfer->status == USBD_CANCELLED || 980 xfer->status == USBD_TIMEOUT) { 981 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 982 return; 983 } 984 985 if (xfer->nframes != 0) { 986 /* Isoc transfer, do things differently. */ 987 uhci_soft_td_t **stds = upipe->u.iso.stds; 988 int i, n, nframes; 989 990 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 991 992 nframes = xfer->nframes; 993 actlen = 0; 994 n = xfer->hcprivint; 995 for (i = 0; i < nframes; i++) { 996 std = stds[n]; 997 #ifdef UHCI_DEBUG 998 if (uhcidebug > 5) { 999 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1000 uhci_dump_td(std); 1001 } 1002 #endif 1003 if (++n >= UHCI_VFRAMELIST_COUNT) 1004 n = 0; 1005 status = LE(std->td.td_status); 1006 actlen += UHCI_TD_GET_ACTLEN(status); 1007 } 1008 upipe->u.iso.inuse -= nframes; 1009 xfer->actlen = actlen; 1010 xfer->status = USBD_NORMAL_COMPLETION; 1011 xfer->hcpriv = ii; 1012 usb_transfer_complete(xfer); 1013 return; 1014 } 1015 1016 #ifdef UHCI_DEBUG 1017 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 1018 if (uhcidebug > 10) 1019 uhci_dump_tds(ii->stdstart); 1020 #endif 1021 1022 /* The transfer is done, compute actual length and status. */ 1023 actlen = 0; 1024 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1025 nstatus = LE(std->td.td_status); 1026 if (nstatus & UHCI_TD_ACTIVE) 1027 break; 1028 status = nstatus; 1029 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1030 UHCI_TD_PID_SETUP) 1031 actlen += UHCI_TD_GET_ACTLEN(status); 1032 } 1033 /* If there are left over TDs we need to update the toggle. */ 1034 if (std != NULL) 1035 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1036 1037 status &= UHCI_TD_ERROR; 1038 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1039 actlen, status)); 1040 xfer->actlen = actlen; 1041 if (status != 0) { 1042 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1043 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1044 "status 0x%b\n", 1045 xfer->pipe->device->address, 1046 xfer->pipe->endpoint->edesc->bEndpointAddress, 1047 (int)status, 1048 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1049 "STALLED\30ACTIVE")); 1050 if (status == UHCI_TD_STALLED) 1051 xfer->status = USBD_STALLED; 1052 else 1053 xfer->status = USBD_IOERROR; /* more info XXX */ 1054 } else { 1055 xfer->status = USBD_NORMAL_COMPLETION; 1056 } 1057 xfer->hcpriv = ii; 1058 usb_transfer_complete(xfer); 1059 } 1060 1061 /* 1062 * Called when a request does not complete. 1063 */ 1064 void 1065 uhci_timeout(addr) 1066 void *addr; 1067 { 1068 uhci_intr_info_t *ii = addr; 1069 1070 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1071 1072 ii->xfer->device->bus->intr_context++; 1073 uhci_abort_req(ii->xfer, USBD_TIMEOUT); 1074 ii->xfer->device->bus->intr_context--; 1075 } 1076 1077 /* 1078 * Wait here until controller claims to have an interrupt. 1079 * Then call uhci_intr and return. Use timeout to avoid waiting 1080 * too long. 1081 * Only used during boot when interrupts are not enabled yet. 1082 */ 1083 void 1084 uhci_waitintr(sc, xfer) 1085 uhci_softc_t *sc; 1086 usbd_xfer_handle xfer; 1087 { 1088 int timo = xfer->timeout; 1089 uhci_intr_info_t *ii; 1090 1091 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1092 1093 xfer->status = USBD_IN_PROGRESS; 1094 for (; timo >= 0; timo--) { 1095 usb_delay_ms(&sc->sc_bus, 1); 1096 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1097 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1098 uhci_intr(sc); 1099 if (xfer->status != USBD_IN_PROGRESS) 1100 return; 1101 } 1102 } 1103 1104 /* Timeout */ 1105 DPRINTF(("uhci_waitintr: timeout\n")); 1106 for (ii = LIST_FIRST(&sc->sc_intrhead); 1107 ii != NULL && ii->xfer != xfer; 1108 ii = LIST_NEXT(ii, list)) 1109 ; 1110 #ifdef DIAGNOSTIC 1111 if (ii == NULL) 1112 panic("uhci_waitintr: lost intr_info\n"); 1113 #endif 1114 uhci_idone(ii); 1115 } 1116 1117 void 1118 uhci_poll(bus) 1119 struct usbd_bus *bus; 1120 { 1121 uhci_softc_t *sc = (uhci_softc_t *)bus; 1122 1123 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1124 uhci_intr(sc); 1125 } 1126 1127 #if 0 1128 void 1129 uhci_reset(p) 1130 void *p; 1131 { 1132 uhci_softc_t *sc = p; 1133 int n; 1134 1135 UHCICMD(sc, UHCI_CMD_HCRESET); 1136 /* The reset bit goes low when the controller is done. */ 1137 for (n = 0; n < UHCI_RESET_TIMEOUT && 1138 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1139 delay(100); 1140 if (n >= UHCI_RESET_TIMEOUT) 1141 printf("%s: controller did not reset\n", 1142 USBDEVNAME(sc->sc_bus.bdev)); 1143 } 1144 #endif 1145 1146 usbd_status 1147 uhci_run(sc, run) 1148 uhci_softc_t *sc; 1149 int run; 1150 { 1151 int s, n, running; 1152 1153 run = run != 0; 1154 s = splusb(); 1155 DPRINTF(("uhci_run: setting run=%d\n", run)); 1156 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1157 for(n = 0; n < 10; n++) { 1158 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1159 /* return when we've entered the state we want */ 1160 if (run == running) { 1161 splx(s); 1162 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1163 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1164 return (USBD_NORMAL_COMPLETION); 1165 } 1166 usb_delay_ms(&sc->sc_bus, 1); 1167 } 1168 splx(s); 1169 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1170 run ? "start" : "stop"); 1171 return (USBD_IOERROR); 1172 } 1173 1174 /* 1175 * Memory management routines. 1176 * uhci_alloc_std allocates TDs 1177 * uhci_alloc_sqh allocates QHs 1178 * These two routines do their own free list management, 1179 * partly for speed, partly because allocating DMAable memory 1180 * has page size granularaity so much memory would be wasted if 1181 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1182 */ 1183 1184 uhci_soft_td_t * 1185 uhci_alloc_std(sc) 1186 uhci_softc_t *sc; 1187 { 1188 uhci_soft_td_t *std; 1189 usbd_status err; 1190 int i, offs; 1191 usb_dma_t dma; 1192 1193 if (sc->sc_freetds == NULL) { 1194 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1195 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1196 UHCI_TD_ALIGN, &dma); 1197 if (err) 1198 return (0); 1199 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1200 offs = i * UHCI_STD_SIZE; 1201 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1202 std->physaddr = DMAADDR(&dma) + offs; 1203 std->link.std = sc->sc_freetds; 1204 sc->sc_freetds = std; 1205 } 1206 } 1207 std = sc->sc_freetds; 1208 sc->sc_freetds = std->link.std; 1209 memset(&std->td, 0, sizeof(uhci_td_t)); 1210 return std; 1211 } 1212 1213 void 1214 uhci_free_std(sc, std) 1215 uhci_softc_t *sc; 1216 uhci_soft_td_t *std; 1217 { 1218 #ifdef DIAGNOSTIC 1219 #define TD_IS_FREE 0x12345678 1220 if (LE(std->td.td_token) == TD_IS_FREE) { 1221 printf("uhci_free_std: freeing free TD %p\n", std); 1222 return; 1223 } 1224 std->td.td_token = LE(TD_IS_FREE); 1225 #endif 1226 std->link.std = sc->sc_freetds; 1227 sc->sc_freetds = std; 1228 } 1229 1230 uhci_soft_qh_t * 1231 uhci_alloc_sqh(sc) 1232 uhci_softc_t *sc; 1233 { 1234 uhci_soft_qh_t *sqh; 1235 usbd_status err; 1236 int i, offs; 1237 usb_dma_t dma; 1238 1239 if (sc->sc_freeqhs == NULL) { 1240 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1241 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1242 UHCI_QH_ALIGN, &dma); 1243 if (err) 1244 return (0); 1245 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1246 offs = i * UHCI_SQH_SIZE; 1247 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1248 sqh->physaddr = DMAADDR(&dma) + offs; 1249 sqh->hlink = sc->sc_freeqhs; 1250 sc->sc_freeqhs = sqh; 1251 } 1252 } 1253 sqh = sc->sc_freeqhs; 1254 sc->sc_freeqhs = sqh->hlink; 1255 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1256 return (sqh); 1257 } 1258 1259 void 1260 uhci_free_sqh(sc, sqh) 1261 uhci_softc_t *sc; 1262 uhci_soft_qh_t *sqh; 1263 { 1264 sqh->hlink = sc->sc_freeqhs; 1265 sc->sc_freeqhs = sqh; 1266 } 1267 1268 #if 0 1269 /* 1270 * Enter a list of transfers onto a control queue. 1271 * Called at splusb() 1272 */ 1273 void 1274 uhci_enter_ctl_q(sc, sqh, ii) 1275 uhci_softc_t *sc; 1276 uhci_soft_qh_t *sqh; 1277 uhci_intr_info_t *ii; 1278 { 1279 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1280 1281 } 1282 #endif 1283 1284 void 1285 uhci_free_std_chain(sc, std, stdend) 1286 uhci_softc_t *sc; 1287 uhci_soft_td_t *std; 1288 uhci_soft_td_t *stdend; 1289 { 1290 uhci_soft_td_t *p; 1291 1292 for (; std != stdend; std = p) { 1293 p = std->link.std; 1294 uhci_free_std(sc, std); 1295 } 1296 } 1297 1298 usbd_status 1299 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1300 struct uhci_pipe *upipe; 1301 uhci_softc_t *sc; 1302 int len, rd, shortok; 1303 usb_dma_t *dma; 1304 uhci_soft_td_t **sp, **ep; 1305 { 1306 uhci_soft_td_t *p, *lastp; 1307 uhci_physaddr_t lastlink; 1308 int i, ntd, l, tog, maxp; 1309 u_int32_t status; 1310 int addr = upipe->pipe.device->address; 1311 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1312 1313 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1314 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1315 upipe->pipe.device->lowspeed, shortok)); 1316 if (len == 0) { 1317 *sp = *ep = 0; 1318 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1319 return (USBD_NORMAL_COMPLETION); 1320 } 1321 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1322 if (maxp == 0) { 1323 printf("uhci_alloc_std_chain: maxp=0\n"); 1324 return (USBD_INVAL); 1325 } 1326 ntd = (len + maxp - 1) / maxp; 1327 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1328 tog = upipe->nexttoggle; 1329 if (ntd % 2 == 0) 1330 tog ^= 1; 1331 upipe->nexttoggle = tog ^ 1; 1332 lastp = 0; 1333 lastlink = UHCI_PTR_T; 1334 ntd--; 1335 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1336 if (upipe->pipe.device->lowspeed) 1337 status |= UHCI_TD_LS; 1338 if (shortok) 1339 status |= UHCI_TD_SPD; 1340 for (i = ntd; i >= 0; i--) { 1341 p = uhci_alloc_std(sc); 1342 if (p == NULL) { 1343 uhci_free_std_chain(sc, lastp, 0); 1344 return (USBD_NOMEM); 1345 } 1346 p->link.std = lastp; 1347 p->td.td_link = LE(lastlink); 1348 lastp = p; 1349 lastlink = p->physaddr; 1350 p->td.td_status = LE(status); 1351 if (i == ntd) { 1352 /* last TD */ 1353 l = len % maxp; 1354 if (l == 0) l = maxp; 1355 *ep = p; 1356 } else 1357 l = maxp; 1358 p->td.td_token = 1359 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1360 UHCI_TD_OUT(l, endpt, addr, tog)); 1361 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1362 tog ^= 1; 1363 } 1364 *sp = lastp; 1365 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1366 upipe->nexttoggle)); 1367 return (USBD_NORMAL_COMPLETION); 1368 } 1369 1370 void 1371 uhci_device_clear_toggle(pipe) 1372 usbd_pipe_handle pipe; 1373 { 1374 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1375 upipe->nexttoggle = 0; 1376 } 1377 1378 void 1379 uhci_noop(pipe) 1380 usbd_pipe_handle pipe; 1381 { 1382 } 1383 1384 usbd_status 1385 uhci_device_bulk_transfer(xfer) 1386 usbd_xfer_handle xfer; 1387 { 1388 usbd_status err; 1389 1390 /* Insert last in queue. */ 1391 err = usb_insert_transfer(xfer); 1392 if (err) 1393 return (err); 1394 1395 /* Pipe isn't running, start first */ 1396 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1397 } 1398 1399 usbd_status 1400 uhci_device_bulk_start(xfer) 1401 usbd_xfer_handle xfer; 1402 { 1403 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1404 usbd_device_handle dev = upipe->pipe.device; 1405 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1406 uhci_intr_info_t *ii = upipe->iinfo; 1407 uhci_soft_td_t *data, *dataend; 1408 uhci_soft_qh_t *sqh; 1409 usbd_status err; 1410 int len, isread, endpt; 1411 int s; 1412 1413 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1414 xfer, xfer->length, xfer->flags)); 1415 1416 #ifdef DIAGNOSTIC 1417 if (xfer->rqflags & URQ_REQUEST) 1418 panic("uhci_device_bulk_transfer: a request\n"); 1419 #endif 1420 1421 len = xfer->length; 1422 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1423 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1424 sqh = upipe->u.bulk.sqh; 1425 1426 upipe->u.bulk.isread = isread; 1427 upipe->u.bulk.length = len; 1428 1429 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1430 xfer->flags & USBD_SHORT_XFER_OK, 1431 &xfer->dmabuf, &data, &dataend); 1432 if (err) 1433 return (err); 1434 dataend->td.td_status |= LE(UHCI_TD_IOC); 1435 1436 #ifdef UHCI_DEBUG 1437 if (uhcidebug > 8) { 1438 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1439 uhci_dump_tds(data); 1440 } 1441 #endif 1442 1443 /* Set up interrupt info. */ 1444 ii->xfer = xfer; 1445 ii->stdstart = data; 1446 ii->stdend = dataend; 1447 #if defined(__FreeBSD__) 1448 callout_handle_init(&ii->timeout_handle); 1449 #endif 1450 #ifdef DIAGNOSTIC 1451 ii->isdone = 0; 1452 #endif 1453 1454 sqh->elink = data; 1455 sqh->qh.qh_elink = LE(data->physaddr); 1456 sqh->intr_info = ii; 1457 1458 s = splusb(); 1459 uhci_add_bulk(sc, sqh); 1460 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1461 1462 if (xfer->timeout && !sc->sc_bus.use_polling) { 1463 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1464 ii->timeout_handle); 1465 } 1466 splx(s); 1467 1468 #ifdef UHCI_DEBUG 1469 if (uhcidebug > 10) { 1470 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1471 uhci_dump_tds(data); 1472 } 1473 #endif 1474 1475 if (sc->sc_bus.use_polling) 1476 uhci_waitintr(sc, xfer); 1477 1478 return (USBD_IN_PROGRESS); 1479 } 1480 1481 /* Abort a device bulk request. */ 1482 void 1483 uhci_device_bulk_abort(xfer) 1484 usbd_xfer_handle xfer; 1485 { 1486 DPRINTF(("uhci_device_bulk_abort:\n")); 1487 uhci_abort_req(xfer, USBD_CANCELLED); 1488 } 1489 1490 void 1491 uhci_abort_req(xfer, status) 1492 usbd_xfer_handle xfer; 1493 usbd_status status; 1494 { 1495 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1496 uhci_intr_info_t *ii = upipe->iinfo; 1497 uhci_soft_td_t *std; 1498 1499 /* Make interrupt routine ignore it, */ 1500 xfer->status = status; 1501 1502 /* don't timeout, */ 1503 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1504 1505 /* make hardware ignore it, */ 1506 for (std = ii->stdstart; std != 0; std = std->link.std) 1507 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1508 1509 xfer->hcpriv = ii; 1510 1511 /* make sure hardware has completed, */ 1512 if (xfer->device->bus->intr_context) { 1513 /* We have no process context, so we can't use tsleep(). */ 1514 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 1515 } else { 1516 usb_delay_ms(xfer->pipe->device->bus, 1); 1517 /* and call final part of interrupt handler. */ 1518 uhci_abort_req_end(xfer); 1519 } 1520 } 1521 1522 void 1523 uhci_abort_req_end(v) 1524 void *v; 1525 { 1526 usbd_xfer_handle xfer = v; 1527 int s; 1528 1529 s = splusb(); 1530 usb_transfer_complete(xfer); 1531 splx(s); 1532 } 1533 1534 /* Close a device bulk pipe. */ 1535 void 1536 uhci_device_bulk_close(pipe) 1537 usbd_pipe_handle pipe; 1538 { 1539 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1540 usbd_device_handle dev = upipe->pipe.device; 1541 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1542 1543 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1544 uhci_free_intr_info(upipe->iinfo); 1545 /* XXX free other resources */ 1546 } 1547 1548 usbd_status 1549 uhci_device_ctrl_transfer(xfer) 1550 usbd_xfer_handle xfer; 1551 { 1552 usbd_status err; 1553 1554 /* Insert last in queue. */ 1555 err = usb_insert_transfer(xfer); 1556 if (err) 1557 return (err); 1558 1559 /* Pipe isn't running, start first */ 1560 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1561 } 1562 1563 usbd_status 1564 uhci_device_ctrl_start(xfer) 1565 usbd_xfer_handle xfer; 1566 { 1567 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1568 usbd_status err; 1569 1570 #ifdef DIAGNOSTIC 1571 if (!(xfer->rqflags & URQ_REQUEST)) 1572 panic("uhci_device_ctrl_transfer: not a request\n"); 1573 #endif 1574 1575 err = uhci_device_request(xfer); 1576 if (err) 1577 return (err); 1578 1579 if (sc->sc_bus.use_polling) 1580 uhci_waitintr(sc, xfer); 1581 return (USBD_IN_PROGRESS); 1582 } 1583 1584 usbd_status 1585 uhci_device_intr_transfer(xfer) 1586 usbd_xfer_handle xfer; 1587 { 1588 usbd_status err; 1589 1590 /* Insert last in queue. */ 1591 err = usb_insert_transfer(xfer); 1592 if (err) 1593 return (err); 1594 1595 /* Pipe isn't running, start first */ 1596 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1597 } 1598 1599 usbd_status 1600 uhci_device_intr_start(xfer) 1601 usbd_xfer_handle xfer; 1602 { 1603 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1604 usbd_device_handle dev = upipe->pipe.device; 1605 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1606 uhci_intr_info_t *ii = upipe->iinfo; 1607 uhci_soft_td_t *data, *dataend; 1608 uhci_soft_qh_t *sqh; 1609 usbd_status err; 1610 int i, s; 1611 1612 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1613 xfer, xfer->length, xfer->flags)); 1614 1615 #ifdef DIAGNOSTIC 1616 if (xfer->rqflags & URQ_REQUEST) 1617 panic("uhci_device_intr_transfer: a request\n"); 1618 #endif 1619 1620 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1621 xfer->flags & USBD_SHORT_XFER_OK, 1622 &xfer->dmabuf, &data, &dataend); 1623 if (err) 1624 return (err); 1625 dataend->td.td_status |= LE(UHCI_TD_IOC); 1626 1627 #ifdef UHCI_DEBUG 1628 if (uhcidebug > 10) { 1629 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1630 uhci_dump_tds(data); 1631 uhci_dump_qh(upipe->u.intr.qhs[0]); 1632 } 1633 #endif 1634 1635 s = splusb(); 1636 /* Set up interrupt info. */ 1637 ii->xfer = xfer; 1638 ii->stdstart = data; 1639 ii->stdend = dataend; 1640 #if defined(__FreeBSD__) 1641 callout_handle_init(&ii->timeout_handle); 1642 #endif 1643 #ifdef DIAGNOSTIC 1644 ii->isdone = 0; 1645 #endif 1646 1647 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1648 upipe->u.intr.qhs[0])); 1649 for (i = 0; i < upipe->u.intr.npoll; i++) { 1650 sqh = upipe->u.intr.qhs[i]; 1651 sqh->elink = data; 1652 sqh->qh.qh_elink = LE(data->physaddr); 1653 } 1654 splx(s); 1655 1656 #ifdef UHCI_DEBUG 1657 if (uhcidebug > 10) { 1658 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1659 uhci_dump_tds(data); 1660 uhci_dump_qh(upipe->u.intr.qhs[0]); 1661 } 1662 #endif 1663 1664 return (USBD_IN_PROGRESS); 1665 } 1666 1667 /* Abort a device control request. */ 1668 void 1669 uhci_device_ctrl_abort(xfer) 1670 usbd_xfer_handle xfer; 1671 { 1672 DPRINTF(("uhci_device_ctrl_abort:\n")); 1673 uhci_abort_req(xfer, USBD_CANCELLED); 1674 } 1675 1676 /* Close a device control pipe. */ 1677 void 1678 uhci_device_ctrl_close(pipe) 1679 usbd_pipe_handle pipe; 1680 { 1681 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1682 1683 uhci_free_intr_info(upipe->iinfo); 1684 /* XXX free other resources? */ 1685 } 1686 1687 /* Abort a device interrupt request. */ 1688 void 1689 uhci_device_intr_abort(xfer) 1690 usbd_xfer_handle xfer; 1691 { 1692 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1693 if (xfer->pipe->intrxfer == xfer) { 1694 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1695 xfer->pipe->intrxfer = 0; 1696 } 1697 uhci_abort_req(xfer, USBD_CANCELLED); 1698 } 1699 1700 /* Close a device interrupt pipe. */ 1701 void 1702 uhci_device_intr_close(pipe) 1703 usbd_pipe_handle pipe; 1704 { 1705 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1706 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1707 int i, s, npoll; 1708 1709 upipe->iinfo->stdstart = 0; /* inactive */ 1710 1711 /* Unlink descriptors from controller data structures. */ 1712 npoll = upipe->u.intr.npoll; 1713 uhci_lock_frames(sc); 1714 for (i = 0; i < npoll; i++) 1715 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1716 upipe->u.intr.qhs[i]); 1717 uhci_unlock_frames(sc); 1718 1719 /* 1720 * We now have to wait for any activity on the physical 1721 * descriptors to stop. 1722 */ 1723 usb_delay_ms(&sc->sc_bus, 2); 1724 1725 for(i = 0; i < npoll; i++) 1726 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1727 free(upipe->u.intr.qhs, M_USBHC); 1728 1729 s = splusb(); 1730 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1731 splx(s); 1732 uhci_free_intr_info(upipe->iinfo); 1733 1734 /* XXX free other resources */ 1735 } 1736 1737 usbd_status 1738 uhci_device_request(xfer) 1739 usbd_xfer_handle xfer; 1740 { 1741 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1742 usb_device_request_t *req = &xfer->request; 1743 usbd_device_handle dev = upipe->pipe.device; 1744 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1745 int addr = dev->address; 1746 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1747 uhci_intr_info_t *ii = upipe->iinfo; 1748 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1749 uhci_soft_qh_t *sqh; 1750 int len; 1751 u_int32_t ls; 1752 usbd_status err; 1753 int isread; 1754 int s; 1755 1756 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1757 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1758 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1759 UGETW(req->wIndex), UGETW(req->wLength), 1760 addr, endpt)); 1761 1762 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1763 isread = req->bmRequestType & UT_READ; 1764 len = UGETW(req->wLength); 1765 1766 setup = upipe->u.ctl.setup; 1767 stat = upipe->u.ctl.stat; 1768 sqh = upipe->u.ctl.sqh; 1769 1770 /* Set up data transaction */ 1771 if (len != 0) { 1772 upipe->nexttoggle = 1; 1773 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1774 xfer->flags & USBD_SHORT_XFER_OK, 1775 &xfer->dmabuf, &data, &dataend); 1776 if (err) 1777 return (err); 1778 next = data; 1779 dataend->link.std = stat; 1780 dataend->td.td_link = LE(stat->physaddr); 1781 } else { 1782 next = stat; 1783 } 1784 upipe->u.ctl.length = len; 1785 1786 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1787 1788 setup->link.std = next; 1789 setup->td.td_link = LE(next->physaddr); 1790 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1791 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1792 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1793 1794 stat->link.std = 0; 1795 stat->td.td_link = LE(UHCI_PTR_T); 1796 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1797 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1798 stat->td.td_token = 1799 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1800 UHCI_TD_IN (0, endpt, addr, 1)); 1801 stat->td.td_buffer = LE(0); 1802 1803 #ifdef UHCI_DEBUG 1804 if (uhcidebug > 20) { 1805 DPRINTF(("uhci_device_request: before transfer\n")); 1806 uhci_dump_tds(setup); 1807 } 1808 #endif 1809 1810 /* Set up interrupt info. */ 1811 ii->xfer = xfer; 1812 ii->stdstart = setup; 1813 ii->stdend = stat; 1814 #if defined(__FreeBSD__) 1815 callout_handle_init(&ii->timeout_handle); 1816 #endif 1817 #ifdef DIAGNOSTIC 1818 ii->isdone = 0; 1819 #endif 1820 1821 sqh->elink = setup; 1822 sqh->qh.qh_elink = LE(setup->physaddr); 1823 sqh->intr_info = ii; 1824 1825 s = splusb(); 1826 uhci_add_ctrl(sc, sqh); 1827 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1828 #ifdef UHCI_DEBUG 1829 if (uhcidebug > 12) { 1830 uhci_soft_td_t *std; 1831 uhci_soft_qh_t *xqh; 1832 uhci_soft_qh_t *sxqh; 1833 int maxqh = 0; 1834 uhci_physaddr_t link; 1835 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1836 for (std = sc->sc_vframes[0].htd, link = 0; 1837 (link & UHCI_PTR_Q) == 0; 1838 std = std->link.std) { 1839 link = LE(std->td.td_link); 1840 uhci_dump_td(std); 1841 } 1842 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1843 xqh != NULL; 1844 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1845 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1846 uhci_dump_qh(xqh); 1847 uhci_dump_qh(sxqh); 1848 } 1849 DPRINTF(("Enqueued QH:\n")); 1850 uhci_dump_qh(sqh); 1851 uhci_dump_tds(sqh->elink); 1852 } 1853 #endif 1854 if (xfer->timeout && !sc->sc_bus.use_polling) { 1855 usb_timeout(uhci_timeout, ii, 1856 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1857 } 1858 splx(s); 1859 1860 return (USBD_NORMAL_COMPLETION); 1861 } 1862 1863 usbd_status 1864 uhci_device_isoc_transfer(xfer) 1865 usbd_xfer_handle xfer; 1866 { 1867 usbd_status err; 1868 1869 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1870 1871 /* Put it on our queue, */ 1872 err = usb_insert_transfer(xfer); 1873 1874 /* bail out on error, */ 1875 if (err && err != USBD_IN_PROGRESS) 1876 return (err); 1877 1878 /* XXX should check inuse here */ 1879 1880 /* insert into schedule, */ 1881 uhci_device_isoc_enter(xfer); 1882 1883 /* and put on interrupt list if the pipe wasn't running */ 1884 if (err == USBD_NORMAL_COMPLETION) 1885 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1886 1887 return (err); 1888 } 1889 1890 void 1891 uhci_device_isoc_enter(xfer) 1892 usbd_xfer_handle xfer; 1893 { 1894 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1895 usbd_device_handle dev = upipe->pipe.device; 1896 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1897 struct iso *iso = &upipe->u.iso; 1898 uhci_soft_td_t *std; 1899 u_int32_t buf, len, status; 1900 int s, i, next, nframes; 1901 1902 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1903 "nframes=%d\n", 1904 iso->inuse, iso->next, xfer, xfer->nframes)); 1905 1906 if (xfer->status == USBD_IN_PROGRESS) { 1907 /* This request has already been entered into the frame list */ 1908 } 1909 1910 #ifdef DIAGNOSTIC 1911 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1912 printf("uhci_device_isoc_enter: overflow!\n"); 1913 #endif 1914 1915 next = iso->next; 1916 if (next == -1) { 1917 /* Not in use yet, schedule it a few frames ahead. */ 1918 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1919 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1920 } 1921 1922 xfer->status = USBD_IN_PROGRESS; 1923 xfer->hcprivint = next; 1924 1925 buf = DMAADDR(&xfer->dmabuf); 1926 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1927 UHCI_TD_ACTIVE | 1928 UHCI_TD_IOS)); 1929 nframes = xfer->nframes; 1930 s = splusb(); 1931 for (i = 0; i < nframes; i++) { 1932 std = iso->stds[next]; 1933 if (++next >= UHCI_VFRAMELIST_COUNT) 1934 next = 0; 1935 len = xfer->frlengths[i]; 1936 std->td.td_buffer = LE(buf); 1937 if (i == nframes - 1) 1938 status |= LE(UHCI_TD_IOC); 1939 std->td.td_status = status; 1940 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1941 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1942 #ifdef UHCI_DEBUG 1943 if (uhcidebug > 5) { 1944 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1945 uhci_dump_td(std); 1946 } 1947 #endif 1948 buf += len; 1949 } 1950 iso->next = next; 1951 iso->inuse += xfer->nframes; 1952 1953 splx(s); 1954 } 1955 1956 usbd_status 1957 uhci_device_isoc_start(xfer) 1958 usbd_xfer_handle xfer; 1959 { 1960 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1961 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1962 uhci_intr_info_t *ii = upipe->iinfo; 1963 uhci_soft_td_t *end; 1964 int s, i; 1965 1966 #ifdef DIAGNOSTIC 1967 if (xfer->status != USBD_IN_PROGRESS) 1968 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 1969 #endif 1970 1971 /* Find the last TD */ 1972 i = xfer->hcprivint + xfer->nframes; 1973 if (i >= UHCI_VFRAMELIST_COUNT) 1974 i -= UHCI_VFRAMELIST_COUNT; 1975 end = upipe->u.iso.stds[i]; 1976 1977 s = splusb(); 1978 1979 /* Set up interrupt info. */ 1980 ii->xfer = xfer; 1981 ii->stdstart = end; 1982 ii->stdend = end; 1983 #if defined(__FreeBSD__) 1984 callout_handle_init(&ii->timeout_handle); 1985 #endif 1986 #ifdef DIAGNOSTIC 1987 ii->isdone = 0; 1988 #endif 1989 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1990 1991 splx(s); 1992 1993 return (USBD_IN_PROGRESS); 1994 } 1995 1996 void 1997 uhci_device_isoc_abort(xfer) 1998 usbd_xfer_handle xfer; 1999 { 2000 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2001 uhci_intr_info_t *ii = upipe->iinfo; 2002 uhci_soft_td_t **stds = upipe->u.iso.stds; 2003 uhci_soft_td_t *std; 2004 int i, n, nframes; 2005 2006 /* Make interrupt routine ignore it, */ 2007 xfer->status = USBD_CANCELLED; 2008 2009 /* make hardware ignore it, */ 2010 nframes = xfer->nframes; 2011 n = xfer->hcprivint; 2012 for (i = 0; i < nframes; i++) { 2013 std = stds[n]; 2014 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2015 if (++n >= UHCI_VFRAMELIST_COUNT) 2016 n = 0; 2017 } 2018 2019 xfer->hcpriv = ii; 2020 2021 /* make sure hardware has completed, */ 2022 if (xfer->device->bus->intr_context) { 2023 /* We have no process context, so we can't use tsleep(). */ 2024 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 2025 } else { 2026 usb_delay_ms(xfer->pipe->device->bus, 1); 2027 /* and call final part of interrupt handler. */ 2028 uhci_abort_req_end(xfer); 2029 } 2030 } 2031 2032 void 2033 uhci_device_isoc_close(pipe) 2034 usbd_pipe_handle pipe; 2035 { 2036 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2037 usbd_device_handle dev = upipe->pipe.device; 2038 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2039 uhci_soft_td_t *std, *vstd; 2040 struct iso *iso; 2041 int i; 2042 2043 /* 2044 * Make sure all TDs are marked as inactive. 2045 * Wait for completion. 2046 * Unschedule. 2047 * Deallocate. 2048 */ 2049 iso = &upipe->u.iso; 2050 2051 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2052 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2053 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2054 2055 uhci_lock_frames(sc); 2056 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2057 std = iso->stds[i]; 2058 for (vstd = sc->sc_vframes[i].htd; 2059 vstd && vstd->link.std != std; 2060 vstd = vstd->link.std) 2061 ; 2062 if (!vstd) { 2063 /*panic*/ 2064 printf("uhci_device_isoc_close: %p not found\n", std); 2065 uhci_unlock_frames(sc); 2066 return; 2067 } 2068 vstd->link = std->link; 2069 vstd->td.td_link = std->td.td_link; 2070 uhci_free_std(sc, std); 2071 } 2072 uhci_unlock_frames(sc); 2073 2074 free(iso->stds, M_USBHC); 2075 } 2076 2077 usbd_status 2078 uhci_setup_isoc(pipe) 2079 usbd_pipe_handle pipe; 2080 { 2081 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2082 usbd_device_handle dev = upipe->pipe.device; 2083 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2084 int addr = upipe->pipe.device->address; 2085 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2086 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2087 uhci_soft_td_t *std, *vstd; 2088 u_int32_t token; 2089 struct iso *iso; 2090 int i; 2091 2092 iso = &upipe->u.iso; 2093 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2094 M_USBHC, M_WAITOK); 2095 2096 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2097 UHCI_TD_OUT(0, endpt, addr, 0)); 2098 2099 /* Allocate the TDs and mark as inactive; */ 2100 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2101 std = uhci_alloc_std(sc); 2102 if (std == 0) 2103 goto bad; 2104 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2105 std->td.td_token = token; 2106 iso->stds[i] = std; 2107 } 2108 2109 /* Insert TDs into schedule. */ 2110 uhci_lock_frames(sc); 2111 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2112 std = iso->stds[i]; 2113 vstd = sc->sc_vframes[i].htd; 2114 std->link = vstd->link; 2115 std->td.td_link = vstd->td.td_link; 2116 vstd->link.std = std; 2117 vstd->td.td_link = LE(std->physaddr); 2118 } 2119 uhci_unlock_frames(sc); 2120 2121 iso->next = -1; 2122 iso->inuse = 0; 2123 2124 return (USBD_NORMAL_COMPLETION); 2125 2126 bad: 2127 while (--i >= 0) 2128 uhci_free_std(sc, iso->stds[i]); 2129 free(iso->stds, M_USBHC); 2130 return (USBD_NOMEM); 2131 } 2132 2133 void 2134 uhci_device_isoc_done(xfer) 2135 usbd_xfer_handle xfer; 2136 { 2137 uhci_intr_info_t *ii = xfer->hcpriv; 2138 2139 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2140 2141 /* Turn off the interrupt since it is active even if the TD is not. */ 2142 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2143 2144 LIST_REMOVE(ii, list); /* remove from active list */ 2145 } 2146 2147 void 2148 uhci_device_intr_done(xfer) 2149 usbd_xfer_handle xfer; 2150 { 2151 uhci_intr_info_t *ii = xfer->hcpriv; 2152 uhci_softc_t *sc = ii->sc; 2153 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2154 uhci_soft_qh_t *sqh; 2155 int i, npoll; 2156 2157 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2158 2159 npoll = upipe->u.intr.npoll; 2160 for(i = 0; i < npoll; i++) { 2161 sqh = upipe->u.intr.qhs[i]; 2162 sqh->elink = 0; 2163 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2164 } 2165 uhci_free_std_chain(sc, ii->stdstart, 0); 2166 2167 /* XXX Wasteful. */ 2168 if (xfer->pipe->repeat) { 2169 uhci_soft_td_t *data, *dataend; 2170 2171 /* This alloc cannot fail since we freed the chain above. */ 2172 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2173 xfer->flags & USBD_SHORT_XFER_OK, 2174 &xfer->dmabuf, &data, &dataend); 2175 dataend->td.td_status |= LE(UHCI_TD_IOC); 2176 2177 #ifdef UHCI_DEBUG 2178 if (uhcidebug > 10) { 2179 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2180 uhci_dump_tds(data); 2181 uhci_dump_qh(upipe->u.intr.qhs[0]); 2182 } 2183 #endif 2184 2185 ii->stdstart = data; 2186 ii->stdend = dataend; 2187 #if defined(__FreeBSD__) 2188 callout_handle_init(&ii->timeout_handle); 2189 #endif 2190 #ifdef DIAGNOSTIC 2191 ii->isdone = 0; 2192 #endif 2193 for (i = 0; i < npoll; i++) { 2194 sqh = upipe->u.intr.qhs[i]; 2195 sqh->elink = data; 2196 sqh->qh.qh_elink = LE(data->physaddr); 2197 } 2198 } else { 2199 ii->stdstart = 0; /* mark as inactive */ 2200 } 2201 } 2202 2203 /* Deallocate request data structures */ 2204 void 2205 uhci_device_ctrl_done(xfer) 2206 usbd_xfer_handle xfer; 2207 { 2208 uhci_intr_info_t *ii = xfer->hcpriv; 2209 uhci_softc_t *sc = ii->sc; 2210 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2211 2212 #ifdef DIAGNOSTIC 2213 if (!(xfer->rqflags & URQ_REQUEST)) 2214 panic("uhci_ctrl_done: not a request\n"); 2215 #endif 2216 2217 LIST_REMOVE(ii, list); /* remove from active list */ 2218 2219 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2220 2221 if (upipe->u.ctl.length != 0) 2222 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2223 2224 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2225 } 2226 2227 /* Deallocate request data structures */ 2228 void 2229 uhci_device_bulk_done(xfer) 2230 usbd_xfer_handle xfer; 2231 { 2232 uhci_intr_info_t *ii = xfer->hcpriv; 2233 uhci_softc_t *sc = ii->sc; 2234 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2235 2236 LIST_REMOVE(ii, list); /* remove from active list */ 2237 2238 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2239 2240 uhci_free_std_chain(sc, ii->stdstart, 0); 2241 2242 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2243 } 2244 2245 /* Add interrupt QH, called with vflock. */ 2246 void 2247 uhci_add_intr(sc, n, sqh) 2248 uhci_softc_t *sc; 2249 int n; 2250 uhci_soft_qh_t *sqh; 2251 { 2252 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2253 uhci_soft_qh_t *eqh; 2254 2255 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2256 eqh = vf->eqh; 2257 sqh->hlink = eqh->hlink; 2258 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2259 eqh->hlink = sqh; 2260 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2261 vf->eqh = sqh; 2262 vf->bandwidth++; 2263 } 2264 2265 /* Remove interrupt QH, called with vflock. */ 2266 void 2267 uhci_remove_intr(sc, n, sqh) 2268 uhci_softc_t *sc; 2269 int n; 2270 uhci_soft_qh_t *sqh; 2271 { 2272 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2273 uhci_soft_qh_t *pqh; 2274 2275 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2276 2277 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2278 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2279 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2280 DPRINTF(("uhci_remove_intr: QH not found\n")); 2281 return; 2282 } 2283 #else 2284 ; 2285 #endif 2286 pqh->hlink = sqh->hlink; 2287 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2288 if (vf->eqh == sqh) 2289 vf->eqh = pqh; 2290 vf->bandwidth--; 2291 } 2292 2293 usbd_status 2294 uhci_device_setintr(sc, upipe, ival) 2295 uhci_softc_t *sc; 2296 struct uhci_pipe *upipe; 2297 int ival; 2298 { 2299 uhci_soft_qh_t *sqh; 2300 int i, npoll, s; 2301 u_int bestbw, bw, bestoffs, offs; 2302 2303 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2304 if (ival == 0) { 2305 printf("uhci_setintr: 0 interval\n"); 2306 return (USBD_INVAL); 2307 } 2308 2309 if (ival > UHCI_VFRAMELIST_COUNT) 2310 ival = UHCI_VFRAMELIST_COUNT; 2311 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2312 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2313 2314 upipe->u.intr.npoll = npoll; 2315 upipe->u.intr.qhs = 2316 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2317 2318 /* 2319 * Figure out which offset in the schedule that has most 2320 * bandwidth left over. 2321 */ 2322 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2323 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2324 for (bw = i = 0; i < npoll; i++) 2325 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2326 if (bw < bestbw) { 2327 bestbw = bw; 2328 bestoffs = offs; 2329 } 2330 } 2331 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2332 2333 upipe->iinfo->stdstart = 0; 2334 for(i = 0; i < npoll; i++) { 2335 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2336 sqh->elink = 0; 2337 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2338 sqh->pos = MOD(i * ival + bestoffs); 2339 sqh->intr_info = upipe->iinfo; 2340 } 2341 #undef MOD 2342 2343 s = splusb(); 2344 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2345 splx(s); 2346 2347 uhci_lock_frames(sc); 2348 /* Enter QHs into the controller data structures. */ 2349 for(i = 0; i < npoll; i++) 2350 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2351 upipe->u.intr.qhs[i]); 2352 uhci_unlock_frames(sc); 2353 2354 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2355 return (USBD_NORMAL_COMPLETION); 2356 } 2357 2358 /* Open a new pipe. */ 2359 usbd_status 2360 uhci_open(pipe) 2361 usbd_pipe_handle pipe; 2362 { 2363 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2364 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2365 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2366 usbd_status err; 2367 2368 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2369 pipe, pipe->device->address, 2370 ed->bEndpointAddress, sc->sc_addr)); 2371 if (pipe->device->address == sc->sc_addr) { 2372 switch (ed->bEndpointAddress) { 2373 case USB_CONTROL_ENDPOINT: 2374 pipe->methods = &uhci_root_ctrl_methods; 2375 break; 2376 case UE_DIR_IN | UHCI_INTR_ENDPT: 2377 pipe->methods = &uhci_root_intr_methods; 2378 break; 2379 default: 2380 return (USBD_INVAL); 2381 } 2382 } else { 2383 upipe->iinfo = uhci_alloc_intr_info(sc); 2384 if (upipe->iinfo == 0) 2385 return (USBD_NOMEM); 2386 switch (ed->bmAttributes & UE_XFERTYPE) { 2387 case UE_CONTROL: 2388 pipe->methods = &uhci_device_ctrl_methods; 2389 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2390 if (upipe->u.ctl.sqh == NULL) 2391 goto bad; 2392 upipe->u.ctl.setup = uhci_alloc_std(sc); 2393 if (upipe->u.ctl.setup == NULL) { 2394 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2395 goto bad; 2396 } 2397 upipe->u.ctl.stat = uhci_alloc_std(sc); 2398 if (upipe->u.ctl.stat == NULL) { 2399 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2400 uhci_free_std(sc, upipe->u.ctl.setup); 2401 goto bad; 2402 } 2403 err = usb_allocmem(&sc->sc_bus, 2404 sizeof(usb_device_request_t), 2405 0, &upipe->u.ctl.reqdma); 2406 if (err) { 2407 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2408 uhci_free_std(sc, upipe->u.ctl.setup); 2409 uhci_free_std(sc, upipe->u.ctl.stat); 2410 goto bad; 2411 } 2412 break; 2413 case UE_INTERRUPT: 2414 pipe->methods = &uhci_device_intr_methods; 2415 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2416 case UE_ISOCHRONOUS: 2417 pipe->methods = &uhci_device_isoc_methods; 2418 return (uhci_setup_isoc(pipe)); 2419 case UE_BULK: 2420 pipe->methods = &uhci_device_bulk_methods; 2421 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2422 if (upipe->u.bulk.sqh == NULL) 2423 goto bad; 2424 break; 2425 } 2426 } 2427 return (USBD_NORMAL_COMPLETION); 2428 2429 bad: 2430 uhci_free_intr_info(upipe->iinfo); 2431 return (USBD_NOMEM); 2432 } 2433 2434 /* 2435 * Data structures and routines to emulate the root hub. 2436 */ 2437 usb_device_descriptor_t uhci_devd = { 2438 USB_DEVICE_DESCRIPTOR_SIZE, 2439 UDESC_DEVICE, /* type */ 2440 {0x00, 0x01}, /* USB version */ 2441 UCLASS_HUB, /* class */ 2442 USUBCLASS_HUB, /* subclass */ 2443 0, /* protocol */ 2444 64, /* max packet */ 2445 {0},{0},{0x00,0x01}, /* device id */ 2446 1,2,0, /* string indicies */ 2447 1 /* # of configurations */ 2448 }; 2449 2450 usb_config_descriptor_t uhci_confd = { 2451 USB_CONFIG_DESCRIPTOR_SIZE, 2452 UDESC_CONFIG, 2453 {USB_CONFIG_DESCRIPTOR_SIZE + 2454 USB_INTERFACE_DESCRIPTOR_SIZE + 2455 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2456 1, 2457 1, 2458 0, 2459 UC_SELF_POWERED, 2460 0 /* max power */ 2461 }; 2462 2463 usb_interface_descriptor_t uhci_ifcd = { 2464 USB_INTERFACE_DESCRIPTOR_SIZE, 2465 UDESC_INTERFACE, 2466 0, 2467 0, 2468 1, 2469 UCLASS_HUB, 2470 USUBCLASS_HUB, 2471 0, 2472 0 2473 }; 2474 2475 usb_endpoint_descriptor_t uhci_endpd = { 2476 USB_ENDPOINT_DESCRIPTOR_SIZE, 2477 UDESC_ENDPOINT, 2478 UE_DIR_IN | UHCI_INTR_ENDPT, 2479 UE_INTERRUPT, 2480 {8}, 2481 255 2482 }; 2483 2484 usb_hub_descriptor_t uhci_hubd_piix = { 2485 USB_HUB_DESCRIPTOR_SIZE, 2486 UDESC_HUB, 2487 2, 2488 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2489 50, /* power on to power good */ 2490 0, 2491 { 0x00 }, /* both ports are removable */ 2492 }; 2493 2494 int 2495 uhci_str(p, l, s) 2496 usb_string_descriptor_t *p; 2497 int l; 2498 char *s; 2499 { 2500 int i; 2501 2502 if (l == 0) 2503 return (0); 2504 p->bLength = 2 * strlen(s) + 2; 2505 if (l == 1) 2506 return (1); 2507 p->bDescriptorType = UDESC_STRING; 2508 l -= 2; 2509 for (i = 0; s[i] && l > 1; i++, l -= 2) 2510 USETW2(p->bString[i], 0, s[i]); 2511 return (2*i+2); 2512 } 2513 2514 /* 2515 * Simulate a hardware hub by handling all the necessary requests. 2516 */ 2517 usbd_status 2518 uhci_root_ctrl_transfer(xfer) 2519 usbd_xfer_handle xfer; 2520 { 2521 usbd_status err; 2522 2523 /* Insert last in queue. */ 2524 err = usb_insert_transfer(xfer); 2525 if (err) 2526 return (err); 2527 2528 /* Pipe isn't running, start first */ 2529 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2530 } 2531 2532 usbd_status 2533 uhci_root_ctrl_start(xfer) 2534 usbd_xfer_handle xfer; 2535 { 2536 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2537 usb_device_request_t *req; 2538 void *buf = NULL; 2539 int port, x; 2540 int s, len, value, index, status, change, l, totlen = 0; 2541 usb_port_status_t ps; 2542 usbd_status err; 2543 2544 #ifdef DIAGNOSTIC 2545 if (!(xfer->rqflags & URQ_REQUEST)) 2546 panic("uhci_root_ctrl_transfer: not a request\n"); 2547 #endif 2548 req = &xfer->request; 2549 2550 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2551 req->bmRequestType, req->bRequest)); 2552 2553 len = UGETW(req->wLength); 2554 value = UGETW(req->wValue); 2555 index = UGETW(req->wIndex); 2556 2557 if (len != 0) 2558 buf = KERNADDR(&xfer->dmabuf); 2559 2560 #define C(x,y) ((x) | ((y) << 8)) 2561 switch(C(req->bRequest, req->bmRequestType)) { 2562 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2563 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2564 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2565 /* 2566 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2567 * for the integrated root hub. 2568 */ 2569 break; 2570 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2571 if (len > 0) { 2572 *(u_int8_t *)buf = sc->sc_conf; 2573 totlen = 1; 2574 } 2575 break; 2576 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2577 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2578 switch(value >> 8) { 2579 case UDESC_DEVICE: 2580 if ((value & 0xff) != 0) { 2581 err = USBD_IOERROR; 2582 goto ret; 2583 } 2584 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2585 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2586 memcpy(buf, &uhci_devd, l); 2587 break; 2588 case UDESC_CONFIG: 2589 if ((value & 0xff) != 0) { 2590 err = USBD_IOERROR; 2591 goto ret; 2592 } 2593 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2594 memcpy(buf, &uhci_confd, l); 2595 buf = (char *)buf + l; 2596 len -= l; 2597 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2598 totlen += l; 2599 memcpy(buf, &uhci_ifcd, l); 2600 buf = (char *)buf + l; 2601 len -= l; 2602 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2603 totlen += l; 2604 memcpy(buf, &uhci_endpd, l); 2605 break; 2606 case UDESC_STRING: 2607 if (len == 0) 2608 break; 2609 *(u_int8_t *)buf = 0; 2610 totlen = 1; 2611 switch (value & 0xff) { 2612 case 1: /* Vendor */ 2613 totlen = uhci_str(buf, len, sc->sc_vendor); 2614 break; 2615 case 2: /* Product */ 2616 totlen = uhci_str(buf, len, "UHCI root hub"); 2617 break; 2618 } 2619 break; 2620 default: 2621 err = USBD_IOERROR; 2622 goto ret; 2623 } 2624 break; 2625 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2626 if (len > 0) { 2627 *(u_int8_t *)buf = 0; 2628 totlen = 1; 2629 } 2630 break; 2631 case C(UR_GET_STATUS, UT_READ_DEVICE): 2632 if (len > 1) { 2633 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2634 totlen = 2; 2635 } 2636 break; 2637 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2638 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2639 if (len > 1) { 2640 USETW(((usb_status_t *)buf)->wStatus, 0); 2641 totlen = 2; 2642 } 2643 break; 2644 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2645 if (value >= USB_MAX_DEVICES) { 2646 err = USBD_IOERROR; 2647 goto ret; 2648 } 2649 sc->sc_addr = value; 2650 break; 2651 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2652 if (value != 0 && value != 1) { 2653 err = USBD_IOERROR; 2654 goto ret; 2655 } 2656 sc->sc_conf = value; 2657 break; 2658 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2659 break; 2660 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2661 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2662 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2663 err = USBD_IOERROR; 2664 goto ret; 2665 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2666 break; 2667 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2668 break; 2669 /* Hub requests */ 2670 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2671 break; 2672 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2673 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2674 "port=%d feature=%d\n", 2675 index, value)); 2676 if (index == 1) 2677 port = UHCI_PORTSC1; 2678 else if (index == 2) 2679 port = UHCI_PORTSC2; 2680 else { 2681 err = USBD_IOERROR; 2682 goto ret; 2683 } 2684 switch(value) { 2685 case UHF_PORT_ENABLE: 2686 x = UREAD2(sc, port); 2687 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2688 break; 2689 case UHF_PORT_SUSPEND: 2690 x = UREAD2(sc, port); 2691 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2692 break; 2693 case UHF_PORT_RESET: 2694 x = UREAD2(sc, port); 2695 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2696 break; 2697 case UHF_C_PORT_CONNECTION: 2698 x = UREAD2(sc, port); 2699 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2700 break; 2701 case UHF_C_PORT_ENABLE: 2702 x = UREAD2(sc, port); 2703 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2704 break; 2705 case UHF_C_PORT_OVER_CURRENT: 2706 x = UREAD2(sc, port); 2707 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2708 break; 2709 case UHF_C_PORT_RESET: 2710 sc->sc_isreset = 0; 2711 err = USBD_NORMAL_COMPLETION; 2712 goto ret; 2713 case UHF_PORT_CONNECTION: 2714 case UHF_PORT_OVER_CURRENT: 2715 case UHF_PORT_POWER: 2716 case UHF_PORT_LOW_SPEED: 2717 case UHF_C_PORT_SUSPEND: 2718 default: 2719 err = USBD_IOERROR; 2720 goto ret; 2721 } 2722 break; 2723 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2724 if (index == 1) 2725 port = UHCI_PORTSC1; 2726 else if (index == 2) 2727 port = UHCI_PORTSC2; 2728 else { 2729 err = USBD_IOERROR; 2730 goto ret; 2731 } 2732 if (len > 0) { 2733 *(u_int8_t *)buf = 2734 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2735 UHCI_PORTSC_LS_SHIFT; 2736 totlen = 1; 2737 } 2738 break; 2739 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2740 if (value != 0) { 2741 err = USBD_IOERROR; 2742 goto ret; 2743 } 2744 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2745 totlen = l; 2746 memcpy(buf, &uhci_hubd_piix, l); 2747 break; 2748 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2749 if (len != 4) { 2750 err = USBD_IOERROR; 2751 goto ret; 2752 } 2753 memset(buf, 0, len); 2754 totlen = len; 2755 break; 2756 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2757 if (index == 1) 2758 port = UHCI_PORTSC1; 2759 else if (index == 2) 2760 port = UHCI_PORTSC2; 2761 else { 2762 err = USBD_IOERROR; 2763 goto ret; 2764 } 2765 if (len != 4) { 2766 err = USBD_IOERROR; 2767 goto ret; 2768 } 2769 x = UREAD2(sc, port); 2770 status = change = 0; 2771 if (x & UHCI_PORTSC_CCS ) 2772 status |= UPS_CURRENT_CONNECT_STATUS; 2773 if (x & UHCI_PORTSC_CSC ) 2774 change |= UPS_C_CONNECT_STATUS; 2775 if (x & UHCI_PORTSC_PE ) 2776 status |= UPS_PORT_ENABLED; 2777 if (x & UHCI_PORTSC_POEDC) 2778 change |= UPS_C_PORT_ENABLED; 2779 if (x & UHCI_PORTSC_OCI ) 2780 status |= UPS_OVERCURRENT_INDICATOR; 2781 if (x & UHCI_PORTSC_OCIC ) 2782 change |= UPS_C_OVERCURRENT_INDICATOR; 2783 if (x & UHCI_PORTSC_SUSP ) 2784 status |= UPS_SUSPEND; 2785 if (x & UHCI_PORTSC_LSDA ) 2786 status |= UPS_LOW_SPEED; 2787 status |= UPS_PORT_POWER; 2788 if (sc->sc_isreset) 2789 change |= UPS_C_PORT_RESET; 2790 USETW(ps.wPortStatus, status); 2791 USETW(ps.wPortChange, change); 2792 l = min(len, sizeof ps); 2793 memcpy(buf, &ps, l); 2794 totlen = l; 2795 break; 2796 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2797 err = USBD_IOERROR; 2798 goto ret; 2799 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2800 break; 2801 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2802 if (index == 1) 2803 port = UHCI_PORTSC1; 2804 else if (index == 2) 2805 port = UHCI_PORTSC2; 2806 else { 2807 err = USBD_IOERROR; 2808 goto ret; 2809 } 2810 switch(value) { 2811 case UHF_PORT_ENABLE: 2812 x = UREAD2(sc, port); 2813 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2814 break; 2815 case UHF_PORT_SUSPEND: 2816 x = UREAD2(sc, port); 2817 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2818 break; 2819 case UHF_PORT_RESET: 2820 x = UREAD2(sc, port); 2821 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2822 usb_delay_ms(&sc->sc_bus, 10); 2823 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2824 delay(100); 2825 x = UREAD2(sc, port); 2826 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2827 delay(100); 2828 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2829 index, UREAD2(sc, port))); 2830 sc->sc_isreset = 1; 2831 break; 2832 case UHF_C_PORT_CONNECTION: 2833 case UHF_C_PORT_ENABLE: 2834 case UHF_C_PORT_OVER_CURRENT: 2835 case UHF_PORT_CONNECTION: 2836 case UHF_PORT_OVER_CURRENT: 2837 case UHF_PORT_POWER: 2838 case UHF_PORT_LOW_SPEED: 2839 case UHF_C_PORT_SUSPEND: 2840 case UHF_C_PORT_RESET: 2841 default: 2842 err = USBD_IOERROR; 2843 goto ret; 2844 } 2845 break; 2846 default: 2847 err = USBD_IOERROR; 2848 goto ret; 2849 } 2850 xfer->actlen = totlen; 2851 err = USBD_NORMAL_COMPLETION; 2852 ret: 2853 xfer->status = err; 2854 xfer->hcpriv = 0; 2855 s = splusb(); 2856 usb_transfer_complete(xfer); 2857 splx(s); 2858 return (USBD_IN_PROGRESS); 2859 } 2860 2861 /* Abort a root control request. */ 2862 void 2863 uhci_root_ctrl_abort(xfer) 2864 usbd_xfer_handle xfer; 2865 { 2866 /* Nothing to do, all transfers are syncronous. */ 2867 } 2868 2869 /* Close the root pipe. */ 2870 void 2871 uhci_root_ctrl_close(pipe) 2872 usbd_pipe_handle pipe; 2873 { 2874 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2875 2876 sc->sc_has_timo = 0; 2877 DPRINTF(("uhci_root_ctrl_close\n")); 2878 } 2879 2880 /* Abort a root interrupt request. */ 2881 void 2882 uhci_root_intr_abort(xfer) 2883 usbd_xfer_handle xfer; 2884 { 2885 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2886 2887 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2888 sc->sc_has_timo = 0; 2889 2890 if (xfer->pipe->intrxfer == xfer) { 2891 DPRINTF(("uhci_root_intr_abort: remove\n")); 2892 xfer->pipe->intrxfer = 0; 2893 } 2894 xfer->status = USBD_CANCELLED; 2895 usb_transfer_complete(xfer); 2896 } 2897 2898 usbd_status 2899 uhci_root_intr_transfer(xfer) 2900 usbd_xfer_handle xfer; 2901 { 2902 usbd_status err; 2903 2904 /* Insert last in queue. */ 2905 err = usb_insert_transfer(xfer); 2906 if (err) 2907 return (err); 2908 2909 /* Pipe isn't running, start first */ 2910 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2911 } 2912 2913 /* Start a transfer on the root interrupt pipe */ 2914 usbd_status 2915 uhci_root_intr_start(xfer) 2916 usbd_xfer_handle xfer; 2917 { 2918 usbd_pipe_handle pipe = xfer->pipe; 2919 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2920 2921 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 2922 xfer, xfer->length, xfer->flags)); 2923 2924 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 2925 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 2926 sc->sc_has_timo = xfer; 2927 return (USBD_IN_PROGRESS); 2928 } 2929 2930 /* Close the root interrupt pipe. */ 2931 void 2932 uhci_root_intr_close(pipe) 2933 usbd_pipe_handle pipe; 2934 { 2935 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2936 2937 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 2938 sc->sc_has_timo = 0; 2939 DPRINTF(("uhci_root_intr_close\n")); 2940 } 2941
Indexes created Tue Sep 30 20:09:53 GMT 2025