uhci.c revision 1.63
1 /* $NetBSD: uhci.c,v 1.63 1999/11/12 00:34:57 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; 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 status = LE(std->td.td_status); 1026 if (status & UHCI_TD_ACTIVE) 1027 break; 1028 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1029 UHCI_TD_PID_SETUP) 1030 actlen += UHCI_TD_GET_ACTLEN(status); 1031 } 1032 /* If there are left over TDs we need to update the toggle. */ 1033 if (std != NULL) 1034 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1035 1036 status &= UHCI_TD_ERROR; 1037 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1038 actlen, status)); 1039 xfer->actlen = actlen; 1040 if (status != 0) { 1041 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1042 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1043 "status 0x%b\n", 1044 xfer->pipe->device->address, 1045 xfer->pipe->endpoint->edesc->bEndpointAddress, 1046 (int)status, 1047 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1048 "STALLED\30ACTIVE")); 1049 if (status == UHCI_TD_STALLED) 1050 xfer->status = USBD_STALLED; 1051 else 1052 xfer->status = USBD_IOERROR; /* more info XXX */ 1053 } else { 1054 xfer->status = USBD_NORMAL_COMPLETION; 1055 } 1056 xfer->hcpriv = ii; 1057 usb_transfer_complete(xfer); 1058 } 1059 1060 /* 1061 * Called when a request does not complete. 1062 */ 1063 void 1064 uhci_timeout(addr) 1065 void *addr; 1066 { 1067 uhci_intr_info_t *ii = addr; 1068 1069 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1070 1071 ii->xfer->device->bus->intr_context++; 1072 uhci_abort_req(ii->xfer, USBD_TIMEOUT); 1073 ii->xfer->device->bus->intr_context--; 1074 } 1075 1076 /* 1077 * Wait here until controller claims to have an interrupt. 1078 * Then call uhci_intr and return. Use timeout to avoid waiting 1079 * too long. 1080 * Only used during boot when interrupts are not enabled yet. 1081 */ 1082 void 1083 uhci_waitintr(sc, xfer) 1084 uhci_softc_t *sc; 1085 usbd_xfer_handle xfer; 1086 { 1087 int timo = xfer->timeout; 1088 uhci_intr_info_t *ii; 1089 1090 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1091 1092 xfer->status = USBD_IN_PROGRESS; 1093 for (; timo >= 0; timo--) { 1094 usb_delay_ms(&sc->sc_bus, 1); 1095 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1096 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1097 uhci_intr(sc); 1098 if (xfer->status != USBD_IN_PROGRESS) 1099 return; 1100 } 1101 } 1102 1103 /* Timeout */ 1104 DPRINTF(("uhci_waitintr: timeout\n")); 1105 for (ii = LIST_FIRST(&sc->sc_intrhead); 1106 ii != NULL && ii->xfer != xfer; 1107 ii = LIST_NEXT(ii, list)) 1108 ; 1109 #ifdef DIAGNOSTIC 1110 if (ii == NULL) 1111 panic("uhci_waitintr: lost intr_info\n"); 1112 #endif 1113 uhci_idone(ii); 1114 } 1115 1116 void 1117 uhci_poll(bus) 1118 struct usbd_bus *bus; 1119 { 1120 uhci_softc_t *sc = (uhci_softc_t *)bus; 1121 1122 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1123 uhci_intr(sc); 1124 } 1125 1126 #if 0 1127 void 1128 uhci_reset(p) 1129 void *p; 1130 { 1131 uhci_softc_t *sc = p; 1132 int n; 1133 1134 UHCICMD(sc, UHCI_CMD_HCRESET); 1135 /* The reset bit goes low when the controller is done. */ 1136 for (n = 0; n < UHCI_RESET_TIMEOUT && 1137 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1138 delay(100); 1139 if (n >= UHCI_RESET_TIMEOUT) 1140 printf("%s: controller did not reset\n", 1141 USBDEVNAME(sc->sc_bus.bdev)); 1142 } 1143 #endif 1144 1145 usbd_status 1146 uhci_run(sc, run) 1147 uhci_softc_t *sc; 1148 int run; 1149 { 1150 int s, n, running; 1151 1152 run = run != 0; 1153 s = splusb(); 1154 DPRINTF(("uhci_run: setting run=%d\n", run)); 1155 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1156 for(n = 0; n < 10; n++) { 1157 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1158 /* return when we've entered the state we want */ 1159 if (run == running) { 1160 splx(s); 1161 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1162 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1163 return (USBD_NORMAL_COMPLETION); 1164 } 1165 usb_delay_ms(&sc->sc_bus, 1); 1166 } 1167 splx(s); 1168 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1169 run ? "start" : "stop"); 1170 return (USBD_IOERROR); 1171 } 1172 1173 /* 1174 * Memory management routines. 1175 * uhci_alloc_std allocates TDs 1176 * uhci_alloc_sqh allocates QHs 1177 * These two routines do their own free list management, 1178 * partly for speed, partly because allocating DMAable memory 1179 * has page size granularaity so much memory would be wasted if 1180 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1181 */ 1182 1183 uhci_soft_td_t * 1184 uhci_alloc_std(sc) 1185 uhci_softc_t *sc; 1186 { 1187 uhci_soft_td_t *std; 1188 usbd_status err; 1189 int i, offs; 1190 usb_dma_t dma; 1191 1192 if (sc->sc_freetds == NULL) { 1193 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1194 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1195 UHCI_TD_ALIGN, &dma); 1196 if (err) 1197 return (0); 1198 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1199 offs = i * UHCI_STD_SIZE; 1200 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1201 std->physaddr = DMAADDR(&dma) + offs; 1202 std->link.std = sc->sc_freetds; 1203 sc->sc_freetds = std; 1204 } 1205 } 1206 std = sc->sc_freetds; 1207 sc->sc_freetds = std->link.std; 1208 memset(&std->td, 0, sizeof(uhci_td_t)); 1209 return std; 1210 } 1211 1212 void 1213 uhci_free_std(sc, std) 1214 uhci_softc_t *sc; 1215 uhci_soft_td_t *std; 1216 { 1217 #ifdef DIAGNOSTIC 1218 #define TD_IS_FREE 0x12345678 1219 if (LE(std->td.td_token) == TD_IS_FREE) { 1220 printf("uhci_free_std: freeing free TD %p\n", std); 1221 return; 1222 } 1223 std->td.td_token = LE(TD_IS_FREE); 1224 #endif 1225 std->link.std = sc->sc_freetds; 1226 sc->sc_freetds = std; 1227 } 1228 1229 uhci_soft_qh_t * 1230 uhci_alloc_sqh(sc) 1231 uhci_softc_t *sc; 1232 { 1233 uhci_soft_qh_t *sqh; 1234 usbd_status err; 1235 int i, offs; 1236 usb_dma_t dma; 1237 1238 if (sc->sc_freeqhs == NULL) { 1239 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1240 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1241 UHCI_QH_ALIGN, &dma); 1242 if (err) 1243 return (0); 1244 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1245 offs = i * UHCI_SQH_SIZE; 1246 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1247 sqh->physaddr = DMAADDR(&dma) + offs; 1248 sqh->hlink = sc->sc_freeqhs; 1249 sc->sc_freeqhs = sqh; 1250 } 1251 } 1252 sqh = sc->sc_freeqhs; 1253 sc->sc_freeqhs = sqh->hlink; 1254 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1255 return (sqh); 1256 } 1257 1258 void 1259 uhci_free_sqh(sc, sqh) 1260 uhci_softc_t *sc; 1261 uhci_soft_qh_t *sqh; 1262 { 1263 sqh->hlink = sc->sc_freeqhs; 1264 sc->sc_freeqhs = sqh; 1265 } 1266 1267 #if 0 1268 /* 1269 * Enter a list of transfers onto a control queue. 1270 * Called at splusb() 1271 */ 1272 void 1273 uhci_enter_ctl_q(sc, sqh, ii) 1274 uhci_softc_t *sc; 1275 uhci_soft_qh_t *sqh; 1276 uhci_intr_info_t *ii; 1277 { 1278 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1279 1280 } 1281 #endif 1282 1283 void 1284 uhci_free_std_chain(sc, std, stdend) 1285 uhci_softc_t *sc; 1286 uhci_soft_td_t *std; 1287 uhci_soft_td_t *stdend; 1288 { 1289 uhci_soft_td_t *p; 1290 1291 for (; std != stdend; std = p) { 1292 p = std->link.std; 1293 uhci_free_std(sc, std); 1294 } 1295 } 1296 1297 usbd_status 1298 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1299 struct uhci_pipe *upipe; 1300 uhci_softc_t *sc; 1301 int len, rd, shortok; 1302 usb_dma_t *dma; 1303 uhci_soft_td_t **sp, **ep; 1304 { 1305 uhci_soft_td_t *p, *lastp; 1306 uhci_physaddr_t lastlink; 1307 int i, ntd, l, tog, maxp; 1308 u_int32_t status; 1309 int addr = upipe->pipe.device->address; 1310 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1311 1312 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1313 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1314 upipe->pipe.device->lowspeed, shortok)); 1315 if (len == 0) { 1316 *sp = *ep = 0; 1317 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1318 return (USBD_NORMAL_COMPLETION); 1319 } 1320 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1321 if (maxp == 0) { 1322 printf("uhci_alloc_std_chain: maxp=0\n"); 1323 return (USBD_INVAL); 1324 } 1325 ntd = (len + maxp - 1) / maxp; 1326 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1327 tog = upipe->nexttoggle; 1328 if (ntd % 2 == 0) 1329 tog ^= 1; 1330 upipe->nexttoggle = tog ^ 1; 1331 lastp = 0; 1332 lastlink = UHCI_PTR_T; 1333 ntd--; 1334 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1335 if (upipe->pipe.device->lowspeed) 1336 status |= UHCI_TD_LS; 1337 if (shortok) 1338 status |= UHCI_TD_SPD; 1339 for (i = ntd; i >= 0; i--) { 1340 p = uhci_alloc_std(sc); 1341 if (p == NULL) { 1342 uhci_free_std_chain(sc, lastp, 0); 1343 return (USBD_NOMEM); 1344 } 1345 p->link.std = lastp; 1346 p->td.td_link = LE(lastlink); 1347 lastp = p; 1348 lastlink = p->physaddr; 1349 p->td.td_status = LE(status); 1350 if (i == ntd) { 1351 /* last TD */ 1352 l = len % maxp; 1353 if (l == 0) l = maxp; 1354 *ep = p; 1355 } else 1356 l = maxp; 1357 p->td.td_token = 1358 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1359 UHCI_TD_OUT(l, endpt, addr, tog)); 1360 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1361 tog ^= 1; 1362 } 1363 *sp = lastp; 1364 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1365 upipe->nexttoggle)); 1366 return (USBD_NORMAL_COMPLETION); 1367 } 1368 1369 void 1370 uhci_device_clear_toggle(pipe) 1371 usbd_pipe_handle pipe; 1372 { 1373 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1374 upipe->nexttoggle = 0; 1375 } 1376 1377 void 1378 uhci_noop(pipe) 1379 usbd_pipe_handle pipe; 1380 { 1381 } 1382 1383 usbd_status 1384 uhci_device_bulk_transfer(xfer) 1385 usbd_xfer_handle xfer; 1386 { 1387 usbd_status err; 1388 1389 /* Insert last in queue. */ 1390 err = usb_insert_transfer(xfer); 1391 if (err) 1392 return (err); 1393 1394 /* Pipe isn't running, start first */ 1395 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1396 } 1397 1398 usbd_status 1399 uhci_device_bulk_start(xfer) 1400 usbd_xfer_handle xfer; 1401 { 1402 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1403 usbd_device_handle dev = upipe->pipe.device; 1404 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1405 uhci_intr_info_t *ii = upipe->iinfo; 1406 uhci_soft_td_t *data, *dataend; 1407 uhci_soft_qh_t *sqh; 1408 usbd_status err; 1409 int len, isread, endpt; 1410 int s; 1411 1412 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1413 xfer, xfer->length, xfer->flags)); 1414 1415 #ifdef DIAGNOSTIC 1416 if (xfer->rqflags & URQ_REQUEST) 1417 panic("uhci_device_bulk_transfer: a request\n"); 1418 #endif 1419 1420 len = xfer->length; 1421 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1422 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1423 sqh = upipe->u.bulk.sqh; 1424 1425 upipe->u.bulk.isread = isread; 1426 upipe->u.bulk.length = len; 1427 1428 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1429 xfer->flags & USBD_SHORT_XFER_OK, 1430 &xfer->dmabuf, &data, &dataend); 1431 if (err) 1432 return (err); 1433 dataend->td.td_status |= LE(UHCI_TD_IOC); 1434 1435 #ifdef UHCI_DEBUG 1436 if (uhcidebug > 8) { 1437 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1438 uhci_dump_tds(data); 1439 } 1440 #endif 1441 1442 /* Set up interrupt info. */ 1443 ii->xfer = xfer; 1444 ii->stdstart = data; 1445 ii->stdend = dataend; 1446 #if defined(__FreeBSD__) 1447 callout_handle_init(&ii->timeout_handle); 1448 #endif 1449 #ifdef DIAGNOSTIC 1450 ii->isdone = 0; 1451 #endif 1452 1453 sqh->elink = data; 1454 sqh->qh.qh_elink = LE(data->physaddr); 1455 sqh->intr_info = ii; 1456 1457 s = splusb(); 1458 uhci_add_bulk(sc, sqh); 1459 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1460 1461 if (xfer->timeout && !sc->sc_bus.use_polling) { 1462 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1463 ii->timeout_handle); 1464 } 1465 splx(s); 1466 1467 #ifdef UHCI_DEBUG 1468 if (uhcidebug > 10) { 1469 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1470 uhci_dump_tds(data); 1471 } 1472 #endif 1473 1474 if (sc->sc_bus.use_polling) 1475 uhci_waitintr(sc, xfer); 1476 1477 return (USBD_IN_PROGRESS); 1478 } 1479 1480 /* Abort a device bulk request. */ 1481 void 1482 uhci_device_bulk_abort(xfer) 1483 usbd_xfer_handle xfer; 1484 { 1485 DPRINTF(("uhci_device_bulk_abort:\n")); 1486 uhci_abort_req(xfer, USBD_CANCELLED); 1487 } 1488 1489 void 1490 uhci_abort_req(xfer, status) 1491 usbd_xfer_handle xfer; 1492 usbd_status status; 1493 { 1494 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1495 uhci_intr_info_t *ii = upipe->iinfo; 1496 uhci_soft_td_t *std; 1497 1498 /* Make interrupt routine ignore it, */ 1499 xfer->status = status; 1500 1501 /* don't timeout, */ 1502 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1503 1504 /* make hardware ignore it, */ 1505 for (std = ii->stdstart; std != 0; std = std->link.std) 1506 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1507 1508 xfer->hcpriv = ii; 1509 1510 /* make sure hardware has completed, */ 1511 if (xfer->device->bus->intr_context) { 1512 /* We have no process context, so we can't use tsleep(). */ 1513 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 1514 } else { 1515 usb_delay_ms(xfer->pipe->device->bus, 1); 1516 /* and call final part of interrupt handler. */ 1517 uhci_abort_req_end(xfer); 1518 } 1519 } 1520 1521 void 1522 uhci_abort_req_end(v) 1523 void *v; 1524 { 1525 usbd_xfer_handle xfer = v; 1526 int s; 1527 1528 s = splusb(); 1529 usb_transfer_complete(xfer); 1530 splx(s); 1531 } 1532 1533 /* Close a device bulk pipe. */ 1534 void 1535 uhci_device_bulk_close(pipe) 1536 usbd_pipe_handle pipe; 1537 { 1538 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1539 usbd_device_handle dev = upipe->pipe.device; 1540 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1541 1542 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1543 uhci_free_intr_info(upipe->iinfo); 1544 /* XXX free other resources */ 1545 } 1546 1547 usbd_status 1548 uhci_device_ctrl_transfer(xfer) 1549 usbd_xfer_handle xfer; 1550 { 1551 usbd_status err; 1552 1553 /* Insert last in queue. */ 1554 err = usb_insert_transfer(xfer); 1555 if (err) 1556 return (err); 1557 1558 /* Pipe isn't running, start first */ 1559 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1560 } 1561 1562 usbd_status 1563 uhci_device_ctrl_start(xfer) 1564 usbd_xfer_handle xfer; 1565 { 1566 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1567 usbd_status err; 1568 1569 #ifdef DIAGNOSTIC 1570 if (!(xfer->rqflags & URQ_REQUEST)) 1571 panic("uhci_device_ctrl_transfer: not a request\n"); 1572 #endif 1573 1574 err = uhci_device_request(xfer); 1575 if (err) 1576 return (err); 1577 1578 if (sc->sc_bus.use_polling) 1579 uhci_waitintr(sc, xfer); 1580 return (USBD_IN_PROGRESS); 1581 } 1582 1583 usbd_status 1584 uhci_device_intr_transfer(xfer) 1585 usbd_xfer_handle xfer; 1586 { 1587 usbd_status err; 1588 1589 /* Insert last in queue. */ 1590 err = usb_insert_transfer(xfer); 1591 if (err) 1592 return (err); 1593 1594 /* Pipe isn't running, start first */ 1595 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1596 } 1597 1598 usbd_status 1599 uhci_device_intr_start(xfer) 1600 usbd_xfer_handle xfer; 1601 { 1602 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1603 usbd_device_handle dev = upipe->pipe.device; 1604 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1605 uhci_intr_info_t *ii = upipe->iinfo; 1606 uhci_soft_td_t *data, *dataend; 1607 uhci_soft_qh_t *sqh; 1608 usbd_status err; 1609 int i, s; 1610 1611 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1612 xfer, xfer->length, xfer->flags)); 1613 1614 #ifdef DIAGNOSTIC 1615 if (xfer->rqflags & URQ_REQUEST) 1616 panic("uhci_device_intr_transfer: a request\n"); 1617 #endif 1618 1619 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1620 xfer->flags & USBD_SHORT_XFER_OK, 1621 &xfer->dmabuf, &data, &dataend); 1622 if (err) 1623 return (err); 1624 dataend->td.td_status |= LE(UHCI_TD_IOC); 1625 1626 #ifdef UHCI_DEBUG 1627 if (uhcidebug > 10) { 1628 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1629 uhci_dump_tds(data); 1630 uhci_dump_qh(upipe->u.intr.qhs[0]); 1631 } 1632 #endif 1633 1634 s = splusb(); 1635 /* Set up interrupt info. */ 1636 ii->xfer = xfer; 1637 ii->stdstart = data; 1638 ii->stdend = dataend; 1639 #if defined(__FreeBSD__) 1640 callout_handle_init(&ii->timeout_handle); 1641 #endif 1642 #ifdef DIAGNOSTIC 1643 ii->isdone = 0; 1644 #endif 1645 1646 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1647 upipe->u.intr.qhs[0])); 1648 for (i = 0; i < upipe->u.intr.npoll; i++) { 1649 sqh = upipe->u.intr.qhs[i]; 1650 sqh->elink = data; 1651 sqh->qh.qh_elink = LE(data->physaddr); 1652 } 1653 splx(s); 1654 1655 #ifdef UHCI_DEBUG 1656 if (uhcidebug > 10) { 1657 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1658 uhci_dump_tds(data); 1659 uhci_dump_qh(upipe->u.intr.qhs[0]); 1660 } 1661 #endif 1662 1663 return (USBD_IN_PROGRESS); 1664 } 1665 1666 /* Abort a device control request. */ 1667 void 1668 uhci_device_ctrl_abort(xfer) 1669 usbd_xfer_handle xfer; 1670 { 1671 DPRINTF(("uhci_device_ctrl_abort:\n")); 1672 uhci_abort_req(xfer, USBD_CANCELLED); 1673 } 1674 1675 /* Close a device control pipe. */ 1676 void 1677 uhci_device_ctrl_close(pipe) 1678 usbd_pipe_handle pipe; 1679 { 1680 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1681 1682 uhci_free_intr_info(upipe->iinfo); 1683 /* XXX free other resources? */ 1684 } 1685 1686 /* Abort a device interrupt request. */ 1687 void 1688 uhci_device_intr_abort(xfer) 1689 usbd_xfer_handle xfer; 1690 { 1691 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1692 if (xfer->pipe->intrxfer == xfer) { 1693 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1694 xfer->pipe->intrxfer = 0; 1695 } 1696 uhci_abort_req(xfer, USBD_CANCELLED); 1697 } 1698 1699 /* Close a device interrupt pipe. */ 1700 void 1701 uhci_device_intr_close(pipe) 1702 usbd_pipe_handle pipe; 1703 { 1704 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1705 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1706 int i, s, npoll; 1707 1708 upipe->iinfo->stdstart = 0; /* inactive */ 1709 1710 /* Unlink descriptors from controller data structures. */ 1711 npoll = upipe->u.intr.npoll; 1712 uhci_lock_frames(sc); 1713 for (i = 0; i < npoll; i++) 1714 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1715 upipe->u.intr.qhs[i]); 1716 uhci_unlock_frames(sc); 1717 1718 /* 1719 * We now have to wait for any activity on the physical 1720 * descriptors to stop. 1721 */ 1722 usb_delay_ms(&sc->sc_bus, 2); 1723 1724 for(i = 0; i < npoll; i++) 1725 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1726 free(upipe->u.intr.qhs, M_USBHC); 1727 1728 s = splusb(); 1729 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1730 splx(s); 1731 uhci_free_intr_info(upipe->iinfo); 1732 1733 /* XXX free other resources */ 1734 } 1735 1736 usbd_status 1737 uhci_device_request(xfer) 1738 usbd_xfer_handle xfer; 1739 { 1740 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1741 usb_device_request_t *req = &xfer->request; 1742 usbd_device_handle dev = upipe->pipe.device; 1743 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1744 int addr = dev->address; 1745 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1746 uhci_intr_info_t *ii = upipe->iinfo; 1747 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1748 uhci_soft_qh_t *sqh; 1749 int len; 1750 u_int32_t ls; 1751 usbd_status err; 1752 int isread; 1753 int s; 1754 1755 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1756 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1757 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1758 UGETW(req->wIndex), UGETW(req->wLength), 1759 addr, endpt)); 1760 1761 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1762 isread = req->bmRequestType & UT_READ; 1763 len = UGETW(req->wLength); 1764 1765 setup = upipe->u.ctl.setup; 1766 stat = upipe->u.ctl.stat; 1767 sqh = upipe->u.ctl.sqh; 1768 1769 /* Set up data transaction */ 1770 if (len != 0) { 1771 upipe->nexttoggle = 1; 1772 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1773 xfer->flags & USBD_SHORT_XFER_OK, 1774 &xfer->dmabuf, &data, &dataend); 1775 if (err) 1776 return (err); 1777 next = data; 1778 dataend->link.std = stat; 1779 dataend->td.td_link = LE(stat->physaddr); 1780 } else { 1781 next = stat; 1782 } 1783 upipe->u.ctl.length = len; 1784 1785 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1786 1787 setup->link.std = next; 1788 setup->td.td_link = LE(next->physaddr); 1789 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1790 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1791 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1792 1793 stat->link.std = 0; 1794 stat->td.td_link = LE(UHCI_PTR_T); 1795 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1796 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1797 stat->td.td_token = 1798 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1799 UHCI_TD_IN (0, endpt, addr, 1)); 1800 stat->td.td_buffer = LE(0); 1801 1802 #ifdef UHCI_DEBUG 1803 if (uhcidebug > 20) { 1804 DPRINTF(("uhci_device_request: before transfer\n")); 1805 uhci_dump_tds(setup); 1806 } 1807 #endif 1808 1809 /* Set up interrupt info. */ 1810 ii->xfer = xfer; 1811 ii->stdstart = setup; 1812 ii->stdend = stat; 1813 #if defined(__FreeBSD__) 1814 callout_handle_init(&ii->timeout_handle); 1815 #endif 1816 #ifdef DIAGNOSTIC 1817 ii->isdone = 0; 1818 #endif 1819 1820 sqh->elink = setup; 1821 sqh->qh.qh_elink = LE(setup->physaddr); 1822 sqh->intr_info = ii; 1823 1824 s = splusb(); 1825 uhci_add_ctrl(sc, sqh); 1826 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1827 #ifdef UHCI_DEBUG 1828 if (uhcidebug > 12) { 1829 uhci_soft_td_t *std; 1830 uhci_soft_qh_t *xqh; 1831 uhci_soft_qh_t *sxqh; 1832 int maxqh = 0; 1833 uhci_physaddr_t link; 1834 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1835 for (std = sc->sc_vframes[0].htd, link = 0; 1836 (link & UHCI_PTR_Q) == 0; 1837 std = std->link.std) { 1838 link = LE(std->td.td_link); 1839 uhci_dump_td(std); 1840 } 1841 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1842 xqh != NULL; 1843 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1844 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1845 uhci_dump_qh(xqh); 1846 uhci_dump_qh(sxqh); 1847 } 1848 DPRINTF(("Enqueued QH:\n")); 1849 uhci_dump_qh(sqh); 1850 uhci_dump_tds(sqh->elink); 1851 } 1852 #endif 1853 if (xfer->timeout && !sc->sc_bus.use_polling) { 1854 usb_timeout(uhci_timeout, ii, 1855 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1856 } 1857 splx(s); 1858 1859 return (USBD_NORMAL_COMPLETION); 1860 } 1861 1862 usbd_status 1863 uhci_device_isoc_transfer(xfer) 1864 usbd_xfer_handle xfer; 1865 { 1866 usbd_status err; 1867 1868 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1869 1870 /* Put it on our queue, */ 1871 err = usb_insert_transfer(xfer); 1872 1873 /* bail out on error, */ 1874 if (err && err != USBD_IN_PROGRESS) 1875 return (err); 1876 1877 /* XXX should check inuse here */ 1878 1879 /* insert into schedule, */ 1880 uhci_device_isoc_enter(xfer); 1881 1882 /* and put on interrupt list if the pipe wasn't running */ 1883 if (err == USBD_NORMAL_COMPLETION) 1884 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1885 1886 return (err); 1887 } 1888 1889 void 1890 uhci_device_isoc_enter(xfer) 1891 usbd_xfer_handle xfer; 1892 { 1893 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1894 usbd_device_handle dev = upipe->pipe.device; 1895 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1896 struct iso *iso = &upipe->u.iso; 1897 uhci_soft_td_t *std; 1898 u_int32_t buf, len, status; 1899 int s, i, next, nframes; 1900 1901 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1902 "nframes=%d\n", 1903 iso->inuse, iso->next, xfer, xfer->nframes)); 1904 1905 if (xfer->status == USBD_IN_PROGRESS) { 1906 /* This request has already been entered into the frame list */ 1907 } 1908 1909 #ifdef DIAGNOSTIC 1910 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1911 printf("uhci_device_isoc_enter: overflow!\n"); 1912 #endif 1913 1914 next = iso->next; 1915 if (next == -1) { 1916 /* Not in use yet, schedule it a few frames ahead. */ 1917 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1918 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1919 } 1920 1921 xfer->status = USBD_IN_PROGRESS; 1922 xfer->hcprivint = next; 1923 1924 buf = DMAADDR(&xfer->dmabuf); 1925 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1926 UHCI_TD_ACTIVE | 1927 UHCI_TD_IOS)); 1928 nframes = xfer->nframes; 1929 s = splusb(); 1930 for (i = 0; i < nframes; i++) { 1931 std = iso->stds[next]; 1932 if (++next >= UHCI_VFRAMELIST_COUNT) 1933 next = 0; 1934 len = xfer->frlengths[i]; 1935 std->td.td_buffer = LE(buf); 1936 if (i == nframes - 1) 1937 status |= LE(UHCI_TD_IOC); 1938 std->td.td_status = status; 1939 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1940 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1941 #ifdef UHCI_DEBUG 1942 if (uhcidebug > 5) { 1943 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1944 uhci_dump_td(std); 1945 } 1946 #endif 1947 buf += len; 1948 } 1949 iso->next = next; 1950 iso->inuse += xfer->nframes; 1951 1952 splx(s); 1953 } 1954 1955 usbd_status 1956 uhci_device_isoc_start(xfer) 1957 usbd_xfer_handle xfer; 1958 { 1959 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1960 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1961 uhci_intr_info_t *ii = upipe->iinfo; 1962 uhci_soft_td_t *end; 1963 int s, i; 1964 1965 #ifdef DIAGNOSTIC 1966 if (xfer->status != USBD_IN_PROGRESS) 1967 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 1968 #endif 1969 1970 /* Find the last TD */ 1971 i = xfer->hcprivint + xfer->nframes; 1972 if (i >= UHCI_VFRAMELIST_COUNT) 1973 i -= UHCI_VFRAMELIST_COUNT; 1974 end = upipe->u.iso.stds[i]; 1975 1976 s = splusb(); 1977 1978 /* Set up interrupt info. */ 1979 ii->xfer = xfer; 1980 ii->stdstart = end; 1981 ii->stdend = end; 1982 #if defined(__FreeBSD__) 1983 callout_handle_init(&ii->timeout_handle); 1984 #endif 1985 #ifdef DIAGNOSTIC 1986 ii->isdone = 0; 1987 #endif 1988 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1989 1990 splx(s); 1991 1992 return (USBD_IN_PROGRESS); 1993 } 1994 1995 void 1996 uhci_device_isoc_abort(xfer) 1997 usbd_xfer_handle xfer; 1998 { 1999 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2000 uhci_intr_info_t *ii = upipe->iinfo; 2001 uhci_soft_td_t **stds = upipe->u.iso.stds; 2002 uhci_soft_td_t *std; 2003 int i, n, nframes; 2004 2005 /* Make interrupt routine ignore it, */ 2006 xfer->status = USBD_CANCELLED; 2007 2008 /* make hardware ignore it, */ 2009 nframes = xfer->nframes; 2010 n = xfer->hcprivint; 2011 for (i = 0; i < nframes; i++) { 2012 std = stds[n]; 2013 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2014 if (++n >= UHCI_VFRAMELIST_COUNT) 2015 n = 0; 2016 } 2017 2018 xfer->hcpriv = ii; 2019 2020 /* make sure hardware has completed, */ 2021 if (xfer->device->bus->intr_context) { 2022 /* We have no process context, so we can't use tsleep(). */ 2023 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 2024 } else { 2025 usb_delay_ms(xfer->pipe->device->bus, 1); 2026 /* and call final part of interrupt handler. */ 2027 uhci_abort_req_end(xfer); 2028 } 2029 } 2030 2031 void 2032 uhci_device_isoc_close(pipe) 2033 usbd_pipe_handle pipe; 2034 { 2035 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2036 usbd_device_handle dev = upipe->pipe.device; 2037 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2038 uhci_soft_td_t *std, *vstd; 2039 struct iso *iso; 2040 int i; 2041 2042 /* 2043 * Make sure all TDs are marked as inactive. 2044 * Wait for completion. 2045 * Unschedule. 2046 * Deallocate. 2047 */ 2048 iso = &upipe->u.iso; 2049 2050 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2051 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2052 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2053 2054 uhci_lock_frames(sc); 2055 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2056 std = iso->stds[i]; 2057 for (vstd = sc->sc_vframes[i].htd; 2058 vstd && vstd->link.std != std; 2059 vstd = vstd->link.std) 2060 ; 2061 if (!vstd) { 2062 /*panic*/ 2063 printf("uhci_device_isoc_close: %p not found\n", std); 2064 uhci_unlock_frames(sc); 2065 return; 2066 } 2067 vstd->link = std->link; 2068 vstd->td.td_link = std->td.td_link; 2069 uhci_free_std(sc, std); 2070 } 2071 uhci_unlock_frames(sc); 2072 2073 free(iso->stds, M_USBHC); 2074 } 2075 2076 usbd_status 2077 uhci_setup_isoc(pipe) 2078 usbd_pipe_handle pipe; 2079 { 2080 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2081 usbd_device_handle dev = upipe->pipe.device; 2082 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2083 int addr = upipe->pipe.device->address; 2084 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2085 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2086 uhci_soft_td_t *std, *vstd; 2087 u_int32_t token; 2088 struct iso *iso; 2089 int i; 2090 2091 iso = &upipe->u.iso; 2092 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2093 M_USBHC, M_WAITOK); 2094 2095 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2096 UHCI_TD_OUT(0, endpt, addr, 0)); 2097 2098 /* Allocate the TDs and mark as inactive; */ 2099 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2100 std = uhci_alloc_std(sc); 2101 if (std == 0) 2102 goto bad; 2103 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2104 std->td.td_token = token; 2105 iso->stds[i] = std; 2106 } 2107 2108 /* Insert TDs into schedule. */ 2109 uhci_lock_frames(sc); 2110 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2111 std = iso->stds[i]; 2112 vstd = sc->sc_vframes[i].htd; 2113 std->link = vstd->link; 2114 std->td.td_link = vstd->td.td_link; 2115 vstd->link.std = std; 2116 vstd->td.td_link = LE(std->physaddr); 2117 } 2118 uhci_unlock_frames(sc); 2119 2120 iso->next = -1; 2121 iso->inuse = 0; 2122 2123 return (USBD_NORMAL_COMPLETION); 2124 2125 bad: 2126 while (--i >= 0) 2127 uhci_free_std(sc, iso->stds[i]); 2128 free(iso->stds, M_USBHC); 2129 return (USBD_NOMEM); 2130 } 2131 2132 void 2133 uhci_device_isoc_done(xfer) 2134 usbd_xfer_handle xfer; 2135 { 2136 uhci_intr_info_t *ii = xfer->hcpriv; 2137 2138 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2139 2140 /* Turn off the interrupt since it is active even if the TD is not. */ 2141 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2142 2143 LIST_REMOVE(ii, list); /* remove from active list */ 2144 } 2145 2146 void 2147 uhci_device_intr_done(xfer) 2148 usbd_xfer_handle xfer; 2149 { 2150 uhci_intr_info_t *ii = xfer->hcpriv; 2151 uhci_softc_t *sc = ii->sc; 2152 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2153 uhci_soft_qh_t *sqh; 2154 int i, npoll; 2155 2156 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2157 2158 npoll = upipe->u.intr.npoll; 2159 for(i = 0; i < npoll; i++) { 2160 sqh = upipe->u.intr.qhs[i]; 2161 sqh->elink = 0; 2162 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2163 } 2164 uhci_free_std_chain(sc, ii->stdstart, 0); 2165 2166 /* XXX Wasteful. */ 2167 if (xfer->pipe->repeat) { 2168 uhci_soft_td_t *data, *dataend; 2169 2170 /* This alloc cannot fail since we freed the chain above. */ 2171 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2172 xfer->flags & USBD_SHORT_XFER_OK, 2173 &xfer->dmabuf, &data, &dataend); 2174 dataend->td.td_status |= LE(UHCI_TD_IOC); 2175 2176 #ifdef UHCI_DEBUG 2177 if (uhcidebug > 10) { 2178 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2179 uhci_dump_tds(data); 2180 uhci_dump_qh(upipe->u.intr.qhs[0]); 2181 } 2182 #endif 2183 2184 ii->stdstart = data; 2185 ii->stdend = dataend; 2186 #if defined(__FreeBSD__) 2187 callout_handle_init(&ii->timeout_handle); 2188 #endif 2189 #ifdef DIAGNOSTIC 2190 ii->isdone = 0; 2191 #endif 2192 for (i = 0; i < npoll; i++) { 2193 sqh = upipe->u.intr.qhs[i]; 2194 sqh->elink = data; 2195 sqh->qh.qh_elink = LE(data->physaddr); 2196 } 2197 } else { 2198 ii->stdstart = 0; /* mark as inactive */ 2199 } 2200 } 2201 2202 /* Deallocate request data structures */ 2203 void 2204 uhci_device_ctrl_done(xfer) 2205 usbd_xfer_handle xfer; 2206 { 2207 uhci_intr_info_t *ii = xfer->hcpriv; 2208 uhci_softc_t *sc = ii->sc; 2209 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2210 2211 #ifdef DIAGNOSTIC 2212 if (!(xfer->rqflags & URQ_REQUEST)) 2213 panic("uhci_ctrl_done: not a request\n"); 2214 #endif 2215 2216 LIST_REMOVE(ii, list); /* remove from active list */ 2217 2218 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2219 2220 if (upipe->u.ctl.length != 0) 2221 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2222 2223 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2224 } 2225 2226 /* Deallocate request data structures */ 2227 void 2228 uhci_device_bulk_done(xfer) 2229 usbd_xfer_handle xfer; 2230 { 2231 uhci_intr_info_t *ii = xfer->hcpriv; 2232 uhci_softc_t *sc = ii->sc; 2233 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2234 2235 LIST_REMOVE(ii, list); /* remove from active list */ 2236 2237 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2238 2239 uhci_free_std_chain(sc, ii->stdstart, 0); 2240 2241 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2242 } 2243 2244 /* Add interrupt QH, called with vflock. */ 2245 void 2246 uhci_add_intr(sc, n, sqh) 2247 uhci_softc_t *sc; 2248 int n; 2249 uhci_soft_qh_t *sqh; 2250 { 2251 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2252 uhci_soft_qh_t *eqh; 2253 2254 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2255 eqh = vf->eqh; 2256 sqh->hlink = eqh->hlink; 2257 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2258 eqh->hlink = sqh; 2259 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2260 vf->eqh = sqh; 2261 vf->bandwidth++; 2262 } 2263 2264 /* Remove interrupt QH, called with vflock. */ 2265 void 2266 uhci_remove_intr(sc, n, sqh) 2267 uhci_softc_t *sc; 2268 int n; 2269 uhci_soft_qh_t *sqh; 2270 { 2271 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2272 uhci_soft_qh_t *pqh; 2273 2274 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2275 2276 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2277 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2278 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2279 DPRINTF(("uhci_remove_intr: QH not found\n")); 2280 return; 2281 } 2282 #else 2283 ; 2284 #endif 2285 pqh->hlink = sqh->hlink; 2286 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2287 if (vf->eqh == sqh) 2288 vf->eqh = pqh; 2289 vf->bandwidth--; 2290 } 2291 2292 usbd_status 2293 uhci_device_setintr(sc, upipe, ival) 2294 uhci_softc_t *sc; 2295 struct uhci_pipe *upipe; 2296 int ival; 2297 { 2298 uhci_soft_qh_t *sqh; 2299 int i, npoll, s; 2300 u_int bestbw, bw, bestoffs, offs; 2301 2302 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2303 if (ival == 0) { 2304 printf("uhci_setintr: 0 interval\n"); 2305 return (USBD_INVAL); 2306 } 2307 2308 if (ival > UHCI_VFRAMELIST_COUNT) 2309 ival = UHCI_VFRAMELIST_COUNT; 2310 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2311 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2312 2313 upipe->u.intr.npoll = npoll; 2314 upipe->u.intr.qhs = 2315 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2316 2317 /* 2318 * Figure out which offset in the schedule that has most 2319 * bandwidth left over. 2320 */ 2321 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2322 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2323 for (bw = i = 0; i < npoll; i++) 2324 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2325 if (bw < bestbw) { 2326 bestbw = bw; 2327 bestoffs = offs; 2328 } 2329 } 2330 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2331 2332 upipe->iinfo->stdstart = 0; 2333 for(i = 0; i < npoll; i++) { 2334 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2335 sqh->elink = 0; 2336 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2337 sqh->pos = MOD(i * ival + bestoffs); 2338 sqh->intr_info = upipe->iinfo; 2339 } 2340 #undef MOD 2341 2342 s = splusb(); 2343 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2344 splx(s); 2345 2346 uhci_lock_frames(sc); 2347 /* Enter QHs into the controller data structures. */ 2348 for(i = 0; i < npoll; i++) 2349 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2350 upipe->u.intr.qhs[i]); 2351 uhci_unlock_frames(sc); 2352 2353 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2354 return (USBD_NORMAL_COMPLETION); 2355 } 2356 2357 /* Open a new pipe. */ 2358 usbd_status 2359 uhci_open(pipe) 2360 usbd_pipe_handle pipe; 2361 { 2362 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2363 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2364 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2365 usbd_status err; 2366 2367 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2368 pipe, pipe->device->address, 2369 ed->bEndpointAddress, sc->sc_addr)); 2370 if (pipe->device->address == sc->sc_addr) { 2371 switch (ed->bEndpointAddress) { 2372 case USB_CONTROL_ENDPOINT: 2373 pipe->methods = &uhci_root_ctrl_methods; 2374 break; 2375 case UE_DIR_IN | UHCI_INTR_ENDPT: 2376 pipe->methods = &uhci_root_intr_methods; 2377 break; 2378 default: 2379 return (USBD_INVAL); 2380 } 2381 } else { 2382 upipe->iinfo = uhci_alloc_intr_info(sc); 2383 if (upipe->iinfo == 0) 2384 return (USBD_NOMEM); 2385 switch (ed->bmAttributes & UE_XFERTYPE) { 2386 case UE_CONTROL: 2387 pipe->methods = &uhci_device_ctrl_methods; 2388 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2389 if (upipe->u.ctl.sqh == NULL) 2390 goto bad; 2391 upipe->u.ctl.setup = uhci_alloc_std(sc); 2392 if (upipe->u.ctl.setup == NULL) { 2393 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2394 goto bad; 2395 } 2396 upipe->u.ctl.stat = uhci_alloc_std(sc); 2397 if (upipe->u.ctl.stat == NULL) { 2398 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2399 uhci_free_std(sc, upipe->u.ctl.setup); 2400 goto bad; 2401 } 2402 err = usb_allocmem(&sc->sc_bus, 2403 sizeof(usb_device_request_t), 2404 0, &upipe->u.ctl.reqdma); 2405 if (err) { 2406 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2407 uhci_free_std(sc, upipe->u.ctl.setup); 2408 uhci_free_std(sc, upipe->u.ctl.stat); 2409 goto bad; 2410 } 2411 break; 2412 case UE_INTERRUPT: 2413 pipe->methods = &uhci_device_intr_methods; 2414 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2415 case UE_ISOCHRONOUS: 2416 pipe->methods = &uhci_device_isoc_methods; 2417 return (uhci_setup_isoc(pipe)); 2418 case UE_BULK: 2419 pipe->methods = &uhci_device_bulk_methods; 2420 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2421 if (upipe->u.bulk.sqh == NULL) 2422 goto bad; 2423 break; 2424 } 2425 } 2426 return (USBD_NORMAL_COMPLETION); 2427 2428 bad: 2429 uhci_free_intr_info(upipe->iinfo); 2430 return (USBD_NOMEM); 2431 } 2432 2433 /* 2434 * Data structures and routines to emulate the root hub. 2435 */ 2436 usb_device_descriptor_t uhci_devd = { 2437 USB_DEVICE_DESCRIPTOR_SIZE, 2438 UDESC_DEVICE, /* type */ 2439 {0x00, 0x01}, /* USB version */ 2440 UCLASS_HUB, /* class */ 2441 USUBCLASS_HUB, /* subclass */ 2442 0, /* protocol */ 2443 64, /* max packet */ 2444 {0},{0},{0x00,0x01}, /* device id */ 2445 1,2,0, /* string indicies */ 2446 1 /* # of configurations */ 2447 }; 2448 2449 usb_config_descriptor_t uhci_confd = { 2450 USB_CONFIG_DESCRIPTOR_SIZE, 2451 UDESC_CONFIG, 2452 {USB_CONFIG_DESCRIPTOR_SIZE + 2453 USB_INTERFACE_DESCRIPTOR_SIZE + 2454 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2455 1, 2456 1, 2457 0, 2458 UC_SELF_POWERED, 2459 0 /* max power */ 2460 }; 2461 2462 usb_interface_descriptor_t uhci_ifcd = { 2463 USB_INTERFACE_DESCRIPTOR_SIZE, 2464 UDESC_INTERFACE, 2465 0, 2466 0, 2467 1, 2468 UCLASS_HUB, 2469 USUBCLASS_HUB, 2470 0, 2471 0 2472 }; 2473 2474 usb_endpoint_descriptor_t uhci_endpd = { 2475 USB_ENDPOINT_DESCRIPTOR_SIZE, 2476 UDESC_ENDPOINT, 2477 UE_DIR_IN | UHCI_INTR_ENDPT, 2478 UE_INTERRUPT, 2479 {8}, 2480 255 2481 }; 2482 2483 usb_hub_descriptor_t uhci_hubd_piix = { 2484 USB_HUB_DESCRIPTOR_SIZE, 2485 UDESC_HUB, 2486 2, 2487 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2488 50, /* power on to power good */ 2489 0, 2490 { 0x00 }, /* both ports are removable */ 2491 }; 2492 2493 int 2494 uhci_str(p, l, s) 2495 usb_string_descriptor_t *p; 2496 int l; 2497 char *s; 2498 { 2499 int i; 2500 2501 if (l == 0) 2502 return (0); 2503 p->bLength = 2 * strlen(s) + 2; 2504 if (l == 1) 2505 return (1); 2506 p->bDescriptorType = UDESC_STRING; 2507 l -= 2; 2508 for (i = 0; s[i] && l > 1; i++, l -= 2) 2509 USETW2(p->bString[i], 0, s[i]); 2510 return (2*i+2); 2511 } 2512 2513 /* 2514 * Simulate a hardware hub by handling all the necessary requests. 2515 */ 2516 usbd_status 2517 uhci_root_ctrl_transfer(xfer) 2518 usbd_xfer_handle xfer; 2519 { 2520 usbd_status err; 2521 2522 /* Insert last in queue. */ 2523 err = usb_insert_transfer(xfer); 2524 if (err) 2525 return (err); 2526 2527 /* Pipe isn't running, start first */ 2528 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2529 } 2530 2531 usbd_status 2532 uhci_root_ctrl_start(xfer) 2533 usbd_xfer_handle xfer; 2534 { 2535 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2536 usb_device_request_t *req; 2537 void *buf = NULL; 2538 int port, x; 2539 int s, len, value, index, status, change, l, totlen = 0; 2540 usb_port_status_t ps; 2541 usbd_status err; 2542 2543 #ifdef DIAGNOSTIC 2544 if (!(xfer->rqflags & URQ_REQUEST)) 2545 panic("uhci_root_ctrl_transfer: not a request\n"); 2546 #endif 2547 req = &xfer->request; 2548 2549 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2550 req->bmRequestType, req->bRequest)); 2551 2552 len = UGETW(req->wLength); 2553 value = UGETW(req->wValue); 2554 index = UGETW(req->wIndex); 2555 2556 if (len != 0) 2557 buf = KERNADDR(&xfer->dmabuf); 2558 2559 #define C(x,y) ((x) | ((y) << 8)) 2560 switch(C(req->bRequest, req->bmRequestType)) { 2561 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2562 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2563 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2564 /* 2565 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2566 * for the integrated root hub. 2567 */ 2568 break; 2569 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2570 if (len > 0) { 2571 *(u_int8_t *)buf = sc->sc_conf; 2572 totlen = 1; 2573 } 2574 break; 2575 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2576 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2577 switch(value >> 8) { 2578 case UDESC_DEVICE: 2579 if ((value & 0xff) != 0) { 2580 err = USBD_IOERROR; 2581 goto ret; 2582 } 2583 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2584 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2585 memcpy(buf, &uhci_devd, l); 2586 break; 2587 case UDESC_CONFIG: 2588 if ((value & 0xff) != 0) { 2589 err = USBD_IOERROR; 2590 goto ret; 2591 } 2592 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2593 memcpy(buf, &uhci_confd, l); 2594 buf = (char *)buf + l; 2595 len -= l; 2596 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2597 totlen += l; 2598 memcpy(buf, &uhci_ifcd, l); 2599 buf = (char *)buf + l; 2600 len -= l; 2601 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2602 totlen += l; 2603 memcpy(buf, &uhci_endpd, l); 2604 break; 2605 case UDESC_STRING: 2606 if (len == 0) 2607 break; 2608 *(u_int8_t *)buf = 0; 2609 totlen = 1; 2610 switch (value & 0xff) { 2611 case 1: /* Vendor */ 2612 totlen = uhci_str(buf, len, sc->sc_vendor); 2613 break; 2614 case 2: /* Product */ 2615 totlen = uhci_str(buf, len, "UHCI root hub"); 2616 break; 2617 } 2618 break; 2619 default: 2620 err = USBD_IOERROR; 2621 goto ret; 2622 } 2623 break; 2624 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2625 if (len > 0) { 2626 *(u_int8_t *)buf = 0; 2627 totlen = 1; 2628 } 2629 break; 2630 case C(UR_GET_STATUS, UT_READ_DEVICE): 2631 if (len > 1) { 2632 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2633 totlen = 2; 2634 } 2635 break; 2636 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2637 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2638 if (len > 1) { 2639 USETW(((usb_status_t *)buf)->wStatus, 0); 2640 totlen = 2; 2641 } 2642 break; 2643 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2644 if (value >= USB_MAX_DEVICES) { 2645 err = USBD_IOERROR; 2646 goto ret; 2647 } 2648 sc->sc_addr = value; 2649 break; 2650 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2651 if (value != 0 && value != 1) { 2652 err = USBD_IOERROR; 2653 goto ret; 2654 } 2655 sc->sc_conf = value; 2656 break; 2657 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2658 break; 2659 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2660 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2661 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2662 err = USBD_IOERROR; 2663 goto ret; 2664 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2665 break; 2666 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2667 break; 2668 /* Hub requests */ 2669 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2670 break; 2671 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2672 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2673 "port=%d feature=%d\n", 2674 index, value)); 2675 if (index == 1) 2676 port = UHCI_PORTSC1; 2677 else if (index == 2) 2678 port = UHCI_PORTSC2; 2679 else { 2680 err = USBD_IOERROR; 2681 goto ret; 2682 } 2683 switch(value) { 2684 case UHF_PORT_ENABLE: 2685 x = UREAD2(sc, port); 2686 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2687 break; 2688 case UHF_PORT_SUSPEND: 2689 x = UREAD2(sc, port); 2690 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2691 break; 2692 case UHF_PORT_RESET: 2693 x = UREAD2(sc, port); 2694 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2695 break; 2696 case UHF_C_PORT_CONNECTION: 2697 x = UREAD2(sc, port); 2698 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2699 break; 2700 case UHF_C_PORT_ENABLE: 2701 x = UREAD2(sc, port); 2702 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2703 break; 2704 case UHF_C_PORT_OVER_CURRENT: 2705 x = UREAD2(sc, port); 2706 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2707 break; 2708 case UHF_C_PORT_RESET: 2709 sc->sc_isreset = 0; 2710 err = USBD_NORMAL_COMPLETION; 2711 goto ret; 2712 case UHF_PORT_CONNECTION: 2713 case UHF_PORT_OVER_CURRENT: 2714 case UHF_PORT_POWER: 2715 case UHF_PORT_LOW_SPEED: 2716 case UHF_C_PORT_SUSPEND: 2717 default: 2718 err = USBD_IOERROR; 2719 goto ret; 2720 } 2721 break; 2722 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2723 if (index == 1) 2724 port = UHCI_PORTSC1; 2725 else if (index == 2) 2726 port = UHCI_PORTSC2; 2727 else { 2728 err = USBD_IOERROR; 2729 goto ret; 2730 } 2731 if (len > 0) { 2732 *(u_int8_t *)buf = 2733 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2734 UHCI_PORTSC_LS_SHIFT; 2735 totlen = 1; 2736 } 2737 break; 2738 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2739 if (value != 0) { 2740 err = USBD_IOERROR; 2741 goto ret; 2742 } 2743 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2744 totlen = l; 2745 memcpy(buf, &uhci_hubd_piix, l); 2746 break; 2747 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2748 if (len != 4) { 2749 err = USBD_IOERROR; 2750 goto ret; 2751 } 2752 memset(buf, 0, len); 2753 totlen = len; 2754 break; 2755 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2756 if (index == 1) 2757 port = UHCI_PORTSC1; 2758 else if (index == 2) 2759 port = UHCI_PORTSC2; 2760 else { 2761 err = USBD_IOERROR; 2762 goto ret; 2763 } 2764 if (len != 4) { 2765 err = USBD_IOERROR; 2766 goto ret; 2767 } 2768 x = UREAD2(sc, port); 2769 status = change = 0; 2770 if (x & UHCI_PORTSC_CCS ) 2771 status |= UPS_CURRENT_CONNECT_STATUS; 2772 if (x & UHCI_PORTSC_CSC ) 2773 change |= UPS_C_CONNECT_STATUS; 2774 if (x & UHCI_PORTSC_PE ) 2775 status |= UPS_PORT_ENABLED; 2776 if (x & UHCI_PORTSC_POEDC) 2777 change |= UPS_C_PORT_ENABLED; 2778 if (x & UHCI_PORTSC_OCI ) 2779 status |= UPS_OVERCURRENT_INDICATOR; 2780 if (x & UHCI_PORTSC_OCIC ) 2781 change |= UPS_C_OVERCURRENT_INDICATOR; 2782 if (x & UHCI_PORTSC_SUSP ) 2783 status |= UPS_SUSPEND; 2784 if (x & UHCI_PORTSC_LSDA ) 2785 status |= UPS_LOW_SPEED; 2786 status |= UPS_PORT_POWER; 2787 if (sc->sc_isreset) 2788 change |= UPS_C_PORT_RESET; 2789 USETW(ps.wPortStatus, status); 2790 USETW(ps.wPortChange, change); 2791 l = min(len, sizeof ps); 2792 memcpy(buf, &ps, l); 2793 totlen = l; 2794 break; 2795 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2796 err = USBD_IOERROR; 2797 goto ret; 2798 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2799 break; 2800 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2801 if (index == 1) 2802 port = UHCI_PORTSC1; 2803 else if (index == 2) 2804 port = UHCI_PORTSC2; 2805 else { 2806 err = USBD_IOERROR; 2807 goto ret; 2808 } 2809 switch(value) { 2810 case UHF_PORT_ENABLE: 2811 x = UREAD2(sc, port); 2812 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2813 break; 2814 case UHF_PORT_SUSPEND: 2815 x = UREAD2(sc, port); 2816 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2817 break; 2818 case UHF_PORT_RESET: 2819 x = UREAD2(sc, port); 2820 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2821 usb_delay_ms(&sc->sc_bus, 10); 2822 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2823 delay(100); 2824 x = UREAD2(sc, port); 2825 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2826 delay(100); 2827 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2828 index, UREAD2(sc, port))); 2829 sc->sc_isreset = 1; 2830 break; 2831 case UHF_C_PORT_CONNECTION: 2832 case UHF_C_PORT_ENABLE: 2833 case UHF_C_PORT_OVER_CURRENT: 2834 case UHF_PORT_CONNECTION: 2835 case UHF_PORT_OVER_CURRENT: 2836 case UHF_PORT_POWER: 2837 case UHF_PORT_LOW_SPEED: 2838 case UHF_C_PORT_SUSPEND: 2839 case UHF_C_PORT_RESET: 2840 default: 2841 err = USBD_IOERROR; 2842 goto ret; 2843 } 2844 break; 2845 default: 2846 err = USBD_IOERROR; 2847 goto ret; 2848 } 2849 xfer->actlen = totlen; 2850 err = USBD_NORMAL_COMPLETION; 2851 ret: 2852 xfer->status = err; 2853 xfer->hcpriv = 0; 2854 s = splusb(); 2855 usb_transfer_complete(xfer); 2856 splx(s); 2857 return (USBD_IN_PROGRESS); 2858 } 2859 2860 /* Abort a root control request. */ 2861 void 2862 uhci_root_ctrl_abort(xfer) 2863 usbd_xfer_handle xfer; 2864 { 2865 /* Nothing to do, all transfers are syncronous. */ 2866 } 2867 2868 /* Close the root pipe. */ 2869 void 2870 uhci_root_ctrl_close(pipe) 2871 usbd_pipe_handle pipe; 2872 { 2873 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2874 2875 sc->sc_has_timo = 0; 2876 DPRINTF(("uhci_root_ctrl_close\n")); 2877 } 2878 2879 /* Abort a root interrupt request. */ 2880 void 2881 uhci_root_intr_abort(xfer) 2882 usbd_xfer_handle xfer; 2883 { 2884 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2885 2886 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2887 sc->sc_has_timo = 0; 2888 2889 if (xfer->pipe->intrxfer == xfer) { 2890 DPRINTF(("uhci_root_intr_abort: remove\n")); 2891 xfer->pipe->intrxfer = 0; 2892 } 2893 xfer->status = USBD_CANCELLED; 2894 usb_transfer_complete(xfer); 2895 } 2896 2897 usbd_status 2898 uhci_root_intr_transfer(xfer) 2899 usbd_xfer_handle xfer; 2900 { 2901 usbd_status err; 2902 2903 /* Insert last in queue. */ 2904 err = usb_insert_transfer(xfer); 2905 if (err) 2906 return (err); 2907 2908 /* Pipe isn't running, start first */ 2909 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2910 } 2911 2912 /* Start a transfer on the root interrupt pipe */ 2913 usbd_status 2914 uhci_root_intr_start(xfer) 2915 usbd_xfer_handle xfer; 2916 { 2917 usbd_pipe_handle pipe = xfer->pipe; 2918 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2919 2920 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 2921 xfer, xfer->length, xfer->flags)); 2922 2923 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 2924 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 2925 sc->sc_has_timo = xfer; 2926 return (USBD_IN_PROGRESS); 2927 } 2928 2929 /* Close the root interrupt pipe. */ 2930 void 2931 uhci_root_intr_close(pipe) 2932 usbd_pipe_handle pipe; 2933 { 2934 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2935 2936 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 2937 sc->sc_has_timo = 0; 2938 DPRINTF(("uhci_root_intr_close\n")); 2939 } 2940
Indexes created Tue Sep 30 17:09:57 GMT 2025