uhci.c revision 1.65
1 /* $NetBSD: uhci.c,v 1.65 1999/11/16 22:19:03 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, xfer=%p, pipe=%p ready\n", 1018 ii, xfer, upipe)); 1019 if (uhcidebug > 10) 1020 uhci_dump_tds(ii->stdstart); 1021 #endif 1022 1023 /* The transfer is done, compute actual length and status. */ 1024 actlen = 0; 1025 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1026 nstatus = LE(std->td.td_status); 1027 if (nstatus & UHCI_TD_ACTIVE) 1028 break; 1029 status = nstatus; 1030 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 1031 UHCI_TD_PID_SETUP) 1032 actlen += UHCI_TD_GET_ACTLEN(status); 1033 } 1034 /* If there are left over TDs we need to update the toggle. */ 1035 if (std != NULL) 1036 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1037 1038 status &= UHCI_TD_ERROR; 1039 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1040 actlen, status)); 1041 xfer->actlen = actlen; 1042 if (status != 0) { 1043 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 1044 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1045 "status 0x%b\n", 1046 xfer->pipe->device->address, 1047 xfer->pipe->endpoint->edesc->bEndpointAddress, 1048 (int)status, 1049 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1050 "STALLED\30ACTIVE")); 1051 if (status == UHCI_TD_STALLED) 1052 xfer->status = USBD_STALLED; 1053 else 1054 xfer->status = USBD_IOERROR; /* more info XXX */ 1055 } else { 1056 xfer->status = USBD_NORMAL_COMPLETION; 1057 } 1058 xfer->hcpriv = ii; 1059 usb_transfer_complete(xfer); 1060 } 1061 1062 /* 1063 * Called when a request does not complete. 1064 */ 1065 void 1066 uhci_timeout(addr) 1067 void *addr; 1068 { 1069 uhci_intr_info_t *ii = addr; 1070 1071 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1072 1073 ii->xfer->device->bus->intr_context++; 1074 uhci_abort_req(ii->xfer, USBD_TIMEOUT); 1075 ii->xfer->device->bus->intr_context--; 1076 } 1077 1078 /* 1079 * Wait here until controller claims to have an interrupt. 1080 * Then call uhci_intr and return. Use timeout to avoid waiting 1081 * too long. 1082 * Only used during boot when interrupts are not enabled yet. 1083 */ 1084 void 1085 uhci_waitintr(sc, xfer) 1086 uhci_softc_t *sc; 1087 usbd_xfer_handle xfer; 1088 { 1089 int timo = xfer->timeout; 1090 uhci_intr_info_t *ii; 1091 1092 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1093 1094 xfer->status = USBD_IN_PROGRESS; 1095 for (; timo >= 0; timo--) { 1096 usb_delay_ms(&sc->sc_bus, 1); 1097 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1098 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1099 uhci_intr(sc); 1100 if (xfer->status != USBD_IN_PROGRESS) 1101 return; 1102 } 1103 } 1104 1105 /* Timeout */ 1106 DPRINTF(("uhci_waitintr: timeout\n")); 1107 for (ii = LIST_FIRST(&sc->sc_intrhead); 1108 ii != NULL && ii->xfer != xfer; 1109 ii = LIST_NEXT(ii, list)) 1110 ; 1111 #ifdef DIAGNOSTIC 1112 if (ii == NULL) 1113 panic("uhci_waitintr: lost intr_info\n"); 1114 #endif 1115 uhci_idone(ii); 1116 } 1117 1118 void 1119 uhci_poll(bus) 1120 struct usbd_bus *bus; 1121 { 1122 uhci_softc_t *sc = (uhci_softc_t *)bus; 1123 1124 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1125 uhci_intr(sc); 1126 } 1127 1128 #if 0 1129 void 1130 uhci_reset(p) 1131 void *p; 1132 { 1133 uhci_softc_t *sc = p; 1134 int n; 1135 1136 UHCICMD(sc, UHCI_CMD_HCRESET); 1137 /* The reset bit goes low when the controller is done. */ 1138 for (n = 0; n < UHCI_RESET_TIMEOUT && 1139 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1140 delay(100); 1141 if (n >= UHCI_RESET_TIMEOUT) 1142 printf("%s: controller did not reset\n", 1143 USBDEVNAME(sc->sc_bus.bdev)); 1144 } 1145 #endif 1146 1147 usbd_status 1148 uhci_run(sc, run) 1149 uhci_softc_t *sc; 1150 int run; 1151 { 1152 int s, n, running; 1153 1154 run = run != 0; 1155 s = splusb(); 1156 DPRINTF(("uhci_run: setting run=%d\n", run)); 1157 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1158 for(n = 0; n < 10; n++) { 1159 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1160 /* return when we've entered the state we want */ 1161 if (run == running) { 1162 splx(s); 1163 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1164 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1165 return (USBD_NORMAL_COMPLETION); 1166 } 1167 usb_delay_ms(&sc->sc_bus, 1); 1168 } 1169 splx(s); 1170 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1171 run ? "start" : "stop"); 1172 return (USBD_IOERROR); 1173 } 1174 1175 /* 1176 * Memory management routines. 1177 * uhci_alloc_std allocates TDs 1178 * uhci_alloc_sqh allocates QHs 1179 * These two routines do their own free list management, 1180 * partly for speed, partly because allocating DMAable memory 1181 * has page size granularaity so much memory would be wasted if 1182 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1183 */ 1184 1185 uhci_soft_td_t * 1186 uhci_alloc_std(sc) 1187 uhci_softc_t *sc; 1188 { 1189 uhci_soft_td_t *std; 1190 usbd_status err; 1191 int i, offs; 1192 usb_dma_t dma; 1193 1194 if (sc->sc_freetds == NULL) { 1195 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1196 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1197 UHCI_TD_ALIGN, &dma); 1198 if (err) 1199 return (0); 1200 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1201 offs = i * UHCI_STD_SIZE; 1202 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1203 std->physaddr = DMAADDR(&dma) + offs; 1204 std->link.std = sc->sc_freetds; 1205 sc->sc_freetds = std; 1206 } 1207 } 1208 std = sc->sc_freetds; 1209 sc->sc_freetds = std->link.std; 1210 memset(&std->td, 0, sizeof(uhci_td_t)); 1211 return std; 1212 } 1213 1214 void 1215 uhci_free_std(sc, std) 1216 uhci_softc_t *sc; 1217 uhci_soft_td_t *std; 1218 { 1219 #ifdef DIAGNOSTIC 1220 #define TD_IS_FREE 0x12345678 1221 if (LE(std->td.td_token) == TD_IS_FREE) { 1222 printf("uhci_free_std: freeing free TD %p\n", std); 1223 return; 1224 } 1225 std->td.td_token = LE(TD_IS_FREE); 1226 #endif 1227 std->link.std = sc->sc_freetds; 1228 sc->sc_freetds = std; 1229 } 1230 1231 uhci_soft_qh_t * 1232 uhci_alloc_sqh(sc) 1233 uhci_softc_t *sc; 1234 { 1235 uhci_soft_qh_t *sqh; 1236 usbd_status err; 1237 int i, offs; 1238 usb_dma_t dma; 1239 1240 if (sc->sc_freeqhs == NULL) { 1241 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1242 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1243 UHCI_QH_ALIGN, &dma); 1244 if (err) 1245 return (0); 1246 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1247 offs = i * UHCI_SQH_SIZE; 1248 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1249 sqh->physaddr = DMAADDR(&dma) + offs; 1250 sqh->hlink = sc->sc_freeqhs; 1251 sc->sc_freeqhs = sqh; 1252 } 1253 } 1254 sqh = sc->sc_freeqhs; 1255 sc->sc_freeqhs = sqh->hlink; 1256 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1257 return (sqh); 1258 } 1259 1260 void 1261 uhci_free_sqh(sc, sqh) 1262 uhci_softc_t *sc; 1263 uhci_soft_qh_t *sqh; 1264 { 1265 sqh->hlink = sc->sc_freeqhs; 1266 sc->sc_freeqhs = sqh; 1267 } 1268 1269 #if 0 1270 /* 1271 * Enter a list of transfers onto a control queue. 1272 * Called at splusb() 1273 */ 1274 void 1275 uhci_enter_ctl_q(sc, sqh, ii) 1276 uhci_softc_t *sc; 1277 uhci_soft_qh_t *sqh; 1278 uhci_intr_info_t *ii; 1279 { 1280 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1281 1282 } 1283 #endif 1284 1285 void 1286 uhci_free_std_chain(sc, std, stdend) 1287 uhci_softc_t *sc; 1288 uhci_soft_td_t *std; 1289 uhci_soft_td_t *stdend; 1290 { 1291 uhci_soft_td_t *p; 1292 1293 for (; std != stdend; std = p) { 1294 p = std->link.std; 1295 uhci_free_std(sc, std); 1296 } 1297 } 1298 1299 usbd_status 1300 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1301 struct uhci_pipe *upipe; 1302 uhci_softc_t *sc; 1303 int len, rd, shortok; 1304 usb_dma_t *dma; 1305 uhci_soft_td_t **sp, **ep; 1306 { 1307 uhci_soft_td_t *p, *lastp; 1308 uhci_physaddr_t lastlink; 1309 int i, ntd, l, tog, maxp; 1310 u_int32_t status; 1311 int addr = upipe->pipe.device->address; 1312 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1313 1314 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1315 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1316 upipe->pipe.device->lowspeed, shortok)); 1317 if (len == 0) { 1318 *sp = *ep = 0; 1319 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1320 return (USBD_NORMAL_COMPLETION); 1321 } 1322 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1323 if (maxp == 0) { 1324 printf("uhci_alloc_std_chain: maxp=0\n"); 1325 return (USBD_INVAL); 1326 } 1327 ntd = (len + maxp - 1) / maxp; 1328 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1329 tog = upipe->nexttoggle; 1330 if (ntd % 2 == 0) 1331 tog ^= 1; 1332 upipe->nexttoggle = tog ^ 1; 1333 lastp = 0; 1334 lastlink = UHCI_PTR_T; 1335 ntd--; 1336 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1337 if (upipe->pipe.device->lowspeed) 1338 status |= UHCI_TD_LS; 1339 if (shortok) 1340 status |= UHCI_TD_SPD; 1341 for (i = ntd; i >= 0; i--) { 1342 p = uhci_alloc_std(sc); 1343 if (p == NULL) { 1344 uhci_free_std_chain(sc, lastp, 0); 1345 return (USBD_NOMEM); 1346 } 1347 p->link.std = lastp; 1348 p->td.td_link = LE(lastlink); 1349 lastp = p; 1350 lastlink = p->physaddr; 1351 p->td.td_status = LE(status); 1352 if (i == ntd) { 1353 /* last TD */ 1354 l = len % maxp; 1355 if (l == 0) l = maxp; 1356 *ep = p; 1357 } else 1358 l = maxp; 1359 p->td.td_token = 1360 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1361 UHCI_TD_OUT(l, endpt, addr, tog)); 1362 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1363 tog ^= 1; 1364 } 1365 *sp = lastp; 1366 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1367 upipe->nexttoggle)); 1368 return (USBD_NORMAL_COMPLETION); 1369 } 1370 1371 void 1372 uhci_device_clear_toggle(pipe) 1373 usbd_pipe_handle pipe; 1374 { 1375 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1376 upipe->nexttoggle = 0; 1377 } 1378 1379 void 1380 uhci_noop(pipe) 1381 usbd_pipe_handle pipe; 1382 { 1383 } 1384 1385 usbd_status 1386 uhci_device_bulk_transfer(xfer) 1387 usbd_xfer_handle xfer; 1388 { 1389 usbd_status err; 1390 1391 /* Insert last in queue. */ 1392 err = usb_insert_transfer(xfer); 1393 if (err) 1394 return (err); 1395 1396 /* Pipe isn't running, start first */ 1397 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1398 } 1399 1400 usbd_status 1401 uhci_device_bulk_start(xfer) 1402 usbd_xfer_handle xfer; 1403 { 1404 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1405 usbd_device_handle dev = upipe->pipe.device; 1406 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1407 uhci_intr_info_t *ii = upipe->iinfo; 1408 uhci_soft_td_t *data, *dataend; 1409 uhci_soft_qh_t *sqh; 1410 usbd_status err; 1411 int len, isread, endpt; 1412 int s; 1413 1414 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1415 xfer, xfer->length, xfer->flags)); 1416 1417 #ifdef DIAGNOSTIC 1418 if (xfer->rqflags & URQ_REQUEST) 1419 panic("uhci_device_bulk_transfer: a request\n"); 1420 #endif 1421 1422 len = xfer->length; 1423 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1424 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1425 sqh = upipe->u.bulk.sqh; 1426 1427 upipe->u.bulk.isread = isread; 1428 upipe->u.bulk.length = len; 1429 1430 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1431 xfer->flags & USBD_SHORT_XFER_OK, 1432 &xfer->dmabuf, &data, &dataend); 1433 if (err) 1434 return (err); 1435 dataend->td.td_status |= LE(UHCI_TD_IOC); 1436 1437 #ifdef UHCI_DEBUG 1438 if (uhcidebug > 8) { 1439 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1440 uhci_dump_tds(data); 1441 } 1442 #endif 1443 1444 /* Set up interrupt info. */ 1445 ii->xfer = xfer; 1446 ii->stdstart = data; 1447 ii->stdend = dataend; 1448 #if defined(__FreeBSD__) 1449 callout_handle_init(&ii->timeout_handle); 1450 #endif 1451 #ifdef DIAGNOSTIC 1452 ii->isdone = 0; 1453 #endif 1454 1455 sqh->elink = data; 1456 sqh->qh.qh_elink = LE(data->physaddr); 1457 sqh->intr_info = ii; 1458 1459 s = splusb(); 1460 uhci_add_bulk(sc, sqh); 1461 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1462 1463 if (xfer->timeout && !sc->sc_bus.use_polling) { 1464 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1465 ii->timeout_handle); 1466 } 1467 splx(s); 1468 1469 #ifdef UHCI_DEBUG 1470 if (uhcidebug > 10) { 1471 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1472 uhci_dump_tds(data); 1473 } 1474 #endif 1475 1476 if (sc->sc_bus.use_polling) 1477 uhci_waitintr(sc, xfer); 1478 1479 return (USBD_IN_PROGRESS); 1480 } 1481 1482 /* Abort a device bulk request. */ 1483 void 1484 uhci_device_bulk_abort(xfer) 1485 usbd_xfer_handle xfer; 1486 { 1487 DPRINTF(("uhci_device_bulk_abort:\n")); 1488 uhci_abort_req(xfer, USBD_CANCELLED); 1489 } 1490 1491 void 1492 uhci_abort_req(xfer, status) 1493 usbd_xfer_handle xfer; 1494 usbd_status status; 1495 { 1496 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1497 uhci_intr_info_t *ii = upipe->iinfo; 1498 uhci_soft_td_t *std; 1499 1500 DPRINTFN(1,("uhci_abort_req: xfer=%p, status=%d\n", xfer, status)); 1501 1502 /* Make interrupt routine ignore it, */ 1503 xfer->status = status; 1504 1505 /* don't timeout, */ 1506 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1507 1508 /* make hardware ignore it, */ 1509 for (std = ii->stdstart; std != 0; std = std->link.std) 1510 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1511 1512 xfer->hcpriv = ii; 1513 1514 /* make sure hardware has completed, */ 1515 if (xfer->device->bus->intr_context) { 1516 /* We have no process context, so we can't use tsleep(). */ 1517 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 1518 } else { 1519 usb_delay_ms(xfer->pipe->device->bus, 1); 1520 /* and call final part of interrupt handler. */ 1521 uhci_abort_req_end(xfer); 1522 } 1523 } 1524 1525 void 1526 uhci_abort_req_end(v) 1527 void *v; 1528 { 1529 usbd_xfer_handle xfer = v; 1530 int s; 1531 1532 s = splusb(); 1533 usb_transfer_complete(xfer); 1534 splx(s); 1535 } 1536 1537 /* Close a device bulk pipe. */ 1538 void 1539 uhci_device_bulk_close(pipe) 1540 usbd_pipe_handle pipe; 1541 { 1542 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1543 usbd_device_handle dev = upipe->pipe.device; 1544 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1545 1546 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1547 uhci_free_intr_info(upipe->iinfo); 1548 /* XXX free other resources */ 1549 } 1550 1551 usbd_status 1552 uhci_device_ctrl_transfer(xfer) 1553 usbd_xfer_handle xfer; 1554 { 1555 usbd_status err; 1556 1557 /* Insert last in queue. */ 1558 err = usb_insert_transfer(xfer); 1559 if (err) 1560 return (err); 1561 1562 /* Pipe isn't running, start first */ 1563 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1564 } 1565 1566 usbd_status 1567 uhci_device_ctrl_start(xfer) 1568 usbd_xfer_handle xfer; 1569 { 1570 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1571 usbd_status err; 1572 1573 #ifdef DIAGNOSTIC 1574 if (!(xfer->rqflags & URQ_REQUEST)) 1575 panic("uhci_device_ctrl_transfer: not a request\n"); 1576 #endif 1577 1578 err = uhci_device_request(xfer); 1579 if (err) 1580 return (err); 1581 1582 if (sc->sc_bus.use_polling) 1583 uhci_waitintr(sc, xfer); 1584 return (USBD_IN_PROGRESS); 1585 } 1586 1587 usbd_status 1588 uhci_device_intr_transfer(xfer) 1589 usbd_xfer_handle xfer; 1590 { 1591 usbd_status err; 1592 1593 /* Insert last in queue. */ 1594 err = usb_insert_transfer(xfer); 1595 if (err) 1596 return (err); 1597 1598 /* Pipe isn't running, start first */ 1599 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1600 } 1601 1602 usbd_status 1603 uhci_device_intr_start(xfer) 1604 usbd_xfer_handle xfer; 1605 { 1606 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1607 usbd_device_handle dev = upipe->pipe.device; 1608 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1609 uhci_intr_info_t *ii = upipe->iinfo; 1610 uhci_soft_td_t *data, *dataend; 1611 uhci_soft_qh_t *sqh; 1612 usbd_status err; 1613 int i, s; 1614 1615 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1616 xfer, xfer->length, xfer->flags)); 1617 1618 #ifdef DIAGNOSTIC 1619 if (xfer->rqflags & URQ_REQUEST) 1620 panic("uhci_device_intr_transfer: a request\n"); 1621 #endif 1622 1623 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1624 xfer->flags & USBD_SHORT_XFER_OK, 1625 &xfer->dmabuf, &data, &dataend); 1626 if (err) 1627 return (err); 1628 dataend->td.td_status |= LE(UHCI_TD_IOC); 1629 1630 #ifdef UHCI_DEBUG 1631 if (uhcidebug > 10) { 1632 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1633 uhci_dump_tds(data); 1634 uhci_dump_qh(upipe->u.intr.qhs[0]); 1635 } 1636 #endif 1637 1638 s = splusb(); 1639 /* Set up interrupt info. */ 1640 ii->xfer = xfer; 1641 ii->stdstart = data; 1642 ii->stdend = dataend; 1643 #if defined(__FreeBSD__) 1644 callout_handle_init(&ii->timeout_handle); 1645 #endif 1646 #ifdef DIAGNOSTIC 1647 ii->isdone = 0; 1648 #endif 1649 1650 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1651 upipe->u.intr.qhs[0])); 1652 for (i = 0; i < upipe->u.intr.npoll; i++) { 1653 sqh = upipe->u.intr.qhs[i]; 1654 sqh->elink = data; 1655 sqh->qh.qh_elink = LE(data->physaddr); 1656 } 1657 splx(s); 1658 1659 #ifdef UHCI_DEBUG 1660 if (uhcidebug > 10) { 1661 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1662 uhci_dump_tds(data); 1663 uhci_dump_qh(upipe->u.intr.qhs[0]); 1664 } 1665 #endif 1666 1667 return (USBD_IN_PROGRESS); 1668 } 1669 1670 /* Abort a device control request. */ 1671 void 1672 uhci_device_ctrl_abort(xfer) 1673 usbd_xfer_handle xfer; 1674 { 1675 DPRINTF(("uhci_device_ctrl_abort:\n")); 1676 uhci_abort_req(xfer, USBD_CANCELLED); 1677 } 1678 1679 /* Close a device control pipe. */ 1680 void 1681 uhci_device_ctrl_close(pipe) 1682 usbd_pipe_handle pipe; 1683 { 1684 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1685 1686 uhci_free_intr_info(upipe->iinfo); 1687 /* XXX free other resources? */ 1688 } 1689 1690 /* Abort a device interrupt request. */ 1691 void 1692 uhci_device_intr_abort(xfer) 1693 usbd_xfer_handle xfer; 1694 { 1695 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1696 if (xfer->pipe->intrxfer == xfer) { 1697 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1698 xfer->pipe->intrxfer = 0; 1699 } 1700 uhci_abort_req(xfer, USBD_CANCELLED); 1701 } 1702 1703 /* Close a device interrupt pipe. */ 1704 void 1705 uhci_device_intr_close(pipe) 1706 usbd_pipe_handle pipe; 1707 { 1708 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1709 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1710 int i, s, npoll; 1711 1712 upipe->iinfo->stdstart = 0; /* inactive */ 1713 1714 /* Unlink descriptors from controller data structures. */ 1715 npoll = upipe->u.intr.npoll; 1716 uhci_lock_frames(sc); 1717 for (i = 0; i < npoll; i++) 1718 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1719 upipe->u.intr.qhs[i]); 1720 uhci_unlock_frames(sc); 1721 1722 /* 1723 * We now have to wait for any activity on the physical 1724 * descriptors to stop. 1725 */ 1726 usb_delay_ms(&sc->sc_bus, 2); 1727 1728 for(i = 0; i < npoll; i++) 1729 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1730 free(upipe->u.intr.qhs, M_USBHC); 1731 1732 s = splusb(); 1733 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1734 splx(s); 1735 uhci_free_intr_info(upipe->iinfo); 1736 1737 /* XXX free other resources */ 1738 } 1739 1740 usbd_status 1741 uhci_device_request(xfer) 1742 usbd_xfer_handle xfer; 1743 { 1744 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1745 usb_device_request_t *req = &xfer->request; 1746 usbd_device_handle dev = upipe->pipe.device; 1747 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1748 int addr = dev->address; 1749 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1750 uhci_intr_info_t *ii = upipe->iinfo; 1751 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1752 uhci_soft_qh_t *sqh; 1753 int len; 1754 u_int32_t ls; 1755 usbd_status err; 1756 int isread; 1757 int s; 1758 1759 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1760 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1761 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1762 UGETW(req->wIndex), UGETW(req->wLength), 1763 addr, endpt)); 1764 1765 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1766 isread = req->bmRequestType & UT_READ; 1767 len = UGETW(req->wLength); 1768 1769 setup = upipe->u.ctl.setup; 1770 stat = upipe->u.ctl.stat; 1771 sqh = upipe->u.ctl.sqh; 1772 1773 /* Set up data transaction */ 1774 if (len != 0) { 1775 upipe->nexttoggle = 1; 1776 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1777 xfer->flags & USBD_SHORT_XFER_OK, 1778 &xfer->dmabuf, &data, &dataend); 1779 if (err) 1780 return (err); 1781 next = data; 1782 dataend->link.std = stat; 1783 dataend->td.td_link = LE(stat->physaddr); 1784 } else { 1785 next = stat; 1786 } 1787 upipe->u.ctl.length = len; 1788 1789 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1790 1791 setup->link.std = next; 1792 setup->td.td_link = LE(next->physaddr); 1793 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1794 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1795 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1796 1797 stat->link.std = 0; 1798 stat->td.td_link = LE(UHCI_PTR_T); 1799 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1800 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1801 stat->td.td_token = 1802 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1803 UHCI_TD_IN (0, endpt, addr, 1)); 1804 stat->td.td_buffer = LE(0); 1805 1806 #ifdef UHCI_DEBUG 1807 if (uhcidebug > 20) { 1808 DPRINTF(("uhci_device_request: before transfer\n")); 1809 uhci_dump_tds(setup); 1810 } 1811 #endif 1812 1813 /* Set up interrupt info. */ 1814 ii->xfer = xfer; 1815 ii->stdstart = setup; 1816 ii->stdend = stat; 1817 #if defined(__FreeBSD__) 1818 callout_handle_init(&ii->timeout_handle); 1819 #endif 1820 #ifdef DIAGNOSTIC 1821 ii->isdone = 0; 1822 #endif 1823 1824 sqh->elink = setup; 1825 sqh->qh.qh_elink = LE(setup->physaddr); 1826 sqh->intr_info = ii; 1827 1828 s = splusb(); 1829 uhci_add_ctrl(sc, sqh); 1830 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1831 #ifdef UHCI_DEBUG 1832 if (uhcidebug > 12) { 1833 uhci_soft_td_t *std; 1834 uhci_soft_qh_t *xqh; 1835 uhci_soft_qh_t *sxqh; 1836 int maxqh = 0; 1837 uhci_physaddr_t link; 1838 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1839 for (std = sc->sc_vframes[0].htd, link = 0; 1840 (link & UHCI_PTR_Q) == 0; 1841 std = std->link.std) { 1842 link = LE(std->td.td_link); 1843 uhci_dump_td(std); 1844 } 1845 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1846 xqh != NULL; 1847 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1848 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1849 uhci_dump_qh(xqh); 1850 uhci_dump_qh(sxqh); 1851 } 1852 DPRINTF(("Enqueued QH:\n")); 1853 uhci_dump_qh(sqh); 1854 uhci_dump_tds(sqh->elink); 1855 } 1856 #endif 1857 if (xfer->timeout && !sc->sc_bus.use_polling) { 1858 usb_timeout(uhci_timeout, ii, 1859 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1860 } 1861 splx(s); 1862 1863 return (USBD_NORMAL_COMPLETION); 1864 } 1865 1866 usbd_status 1867 uhci_device_isoc_transfer(xfer) 1868 usbd_xfer_handle xfer; 1869 { 1870 usbd_status err; 1871 1872 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1873 1874 /* Put it on our queue, */ 1875 err = usb_insert_transfer(xfer); 1876 1877 /* bail out on error, */ 1878 if (err && err != USBD_IN_PROGRESS) 1879 return (err); 1880 1881 /* XXX should check inuse here */ 1882 1883 /* insert into schedule, */ 1884 uhci_device_isoc_enter(xfer); 1885 1886 /* and put on interrupt list if the pipe wasn't running */ 1887 if (err == USBD_NORMAL_COMPLETION) 1888 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1889 1890 return (err); 1891 } 1892 1893 void 1894 uhci_device_isoc_enter(xfer) 1895 usbd_xfer_handle xfer; 1896 { 1897 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1898 usbd_device_handle dev = upipe->pipe.device; 1899 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1900 struct iso *iso = &upipe->u.iso; 1901 uhci_soft_td_t *std; 1902 u_int32_t buf, len, status; 1903 int s, i, next, nframes; 1904 1905 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1906 "nframes=%d\n", 1907 iso->inuse, iso->next, xfer, xfer->nframes)); 1908 1909 if (xfer->status == USBD_IN_PROGRESS) { 1910 /* This request has already been entered into the frame list */ 1911 } 1912 1913 #ifdef DIAGNOSTIC 1914 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1915 printf("uhci_device_isoc_enter: overflow!\n"); 1916 #endif 1917 1918 next = iso->next; 1919 if (next == -1) { 1920 /* Not in use yet, schedule it a few frames ahead. */ 1921 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1922 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1923 } 1924 1925 xfer->status = USBD_IN_PROGRESS; 1926 xfer->hcprivint = next; 1927 1928 buf = DMAADDR(&xfer->dmabuf); 1929 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1930 UHCI_TD_ACTIVE | 1931 UHCI_TD_IOS)); 1932 nframes = xfer->nframes; 1933 s = splusb(); 1934 for (i = 0; i < nframes; i++) { 1935 std = iso->stds[next]; 1936 if (++next >= UHCI_VFRAMELIST_COUNT) 1937 next = 0; 1938 len = xfer->frlengths[i]; 1939 std->td.td_buffer = LE(buf); 1940 if (i == nframes - 1) 1941 status |= LE(UHCI_TD_IOC); 1942 std->td.td_status = status; 1943 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1944 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1945 #ifdef UHCI_DEBUG 1946 if (uhcidebug > 5) { 1947 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1948 uhci_dump_td(std); 1949 } 1950 #endif 1951 buf += len; 1952 } 1953 iso->next = next; 1954 iso->inuse += xfer->nframes; 1955 1956 splx(s); 1957 } 1958 1959 usbd_status 1960 uhci_device_isoc_start(xfer) 1961 usbd_xfer_handle xfer; 1962 { 1963 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1964 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1965 uhci_intr_info_t *ii = upipe->iinfo; 1966 uhci_soft_td_t *end; 1967 int s, i; 1968 1969 #ifdef DIAGNOSTIC 1970 if (xfer->status != USBD_IN_PROGRESS) 1971 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 1972 #endif 1973 1974 /* Find the last TD */ 1975 i = xfer->hcprivint + xfer->nframes; 1976 if (i >= UHCI_VFRAMELIST_COUNT) 1977 i -= UHCI_VFRAMELIST_COUNT; 1978 end = upipe->u.iso.stds[i]; 1979 1980 s = splusb(); 1981 1982 /* Set up interrupt info. */ 1983 ii->xfer = xfer; 1984 ii->stdstart = end; 1985 ii->stdend = end; 1986 #if defined(__FreeBSD__) 1987 callout_handle_init(&ii->timeout_handle); 1988 #endif 1989 #ifdef DIAGNOSTIC 1990 ii->isdone = 0; 1991 #endif 1992 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1993 1994 splx(s); 1995 1996 return (USBD_IN_PROGRESS); 1997 } 1998 1999 void 2000 uhci_device_isoc_abort(xfer) 2001 usbd_xfer_handle xfer; 2002 { 2003 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2004 uhci_intr_info_t *ii = upipe->iinfo; 2005 uhci_soft_td_t **stds = upipe->u.iso.stds; 2006 uhci_soft_td_t *std; 2007 int i, n, nframes; 2008 2009 /* Make interrupt routine ignore it, */ 2010 xfer->status = USBD_CANCELLED; 2011 2012 /* make hardware ignore it, */ 2013 nframes = xfer->nframes; 2014 n = xfer->hcprivint; 2015 for (i = 0; i < nframes; i++) { 2016 std = stds[n]; 2017 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2018 if (++n >= UHCI_VFRAMELIST_COUNT) 2019 n = 0; 2020 } 2021 2022 xfer->hcpriv = ii; 2023 2024 /* make sure hardware has completed, */ 2025 if (xfer->device->bus->intr_context) { 2026 /* We have no process context, so we can't use tsleep(). */ 2027 timeout(uhci_abort_req_end, xfer, hz / USB_FRAMES_PER_SECOND); 2028 } else { 2029 usb_delay_ms(xfer->pipe->device->bus, 1); 2030 /* and call final part of interrupt handler. */ 2031 uhci_abort_req_end(xfer); 2032 } 2033 } 2034 2035 void 2036 uhci_device_isoc_close(pipe) 2037 usbd_pipe_handle pipe; 2038 { 2039 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2040 usbd_device_handle dev = upipe->pipe.device; 2041 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2042 uhci_soft_td_t *std, *vstd; 2043 struct iso *iso; 2044 int i; 2045 2046 /* 2047 * Make sure all TDs are marked as inactive. 2048 * Wait for completion. 2049 * Unschedule. 2050 * Deallocate. 2051 */ 2052 iso = &upipe->u.iso; 2053 2054 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2055 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2056 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2057 2058 uhci_lock_frames(sc); 2059 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2060 std = iso->stds[i]; 2061 for (vstd = sc->sc_vframes[i].htd; 2062 vstd && vstd->link.std != std; 2063 vstd = vstd->link.std) 2064 ; 2065 if (!vstd) { 2066 /*panic*/ 2067 printf("uhci_device_isoc_close: %p not found\n", std); 2068 uhci_unlock_frames(sc); 2069 return; 2070 } 2071 vstd->link = std->link; 2072 vstd->td.td_link = std->td.td_link; 2073 uhci_free_std(sc, std); 2074 } 2075 uhci_unlock_frames(sc); 2076 2077 free(iso->stds, M_USBHC); 2078 } 2079 2080 usbd_status 2081 uhci_setup_isoc(pipe) 2082 usbd_pipe_handle pipe; 2083 { 2084 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2085 usbd_device_handle dev = upipe->pipe.device; 2086 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2087 int addr = upipe->pipe.device->address; 2088 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2089 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2090 uhci_soft_td_t *std, *vstd; 2091 u_int32_t token; 2092 struct iso *iso; 2093 int i; 2094 2095 iso = &upipe->u.iso; 2096 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2097 M_USBHC, M_WAITOK); 2098 2099 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2100 UHCI_TD_OUT(0, endpt, addr, 0)); 2101 2102 /* Allocate the TDs and mark as inactive; */ 2103 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2104 std = uhci_alloc_std(sc); 2105 if (std == 0) 2106 goto bad; 2107 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2108 std->td.td_token = token; 2109 iso->stds[i] = std; 2110 } 2111 2112 /* Insert TDs into schedule. */ 2113 uhci_lock_frames(sc); 2114 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2115 std = iso->stds[i]; 2116 vstd = sc->sc_vframes[i].htd; 2117 std->link = vstd->link; 2118 std->td.td_link = vstd->td.td_link; 2119 vstd->link.std = std; 2120 vstd->td.td_link = LE(std->physaddr); 2121 } 2122 uhci_unlock_frames(sc); 2123 2124 iso->next = -1; 2125 iso->inuse = 0; 2126 2127 return (USBD_NORMAL_COMPLETION); 2128 2129 bad: 2130 while (--i >= 0) 2131 uhci_free_std(sc, iso->stds[i]); 2132 free(iso->stds, M_USBHC); 2133 return (USBD_NOMEM); 2134 } 2135 2136 void 2137 uhci_device_isoc_done(xfer) 2138 usbd_xfer_handle xfer; 2139 { 2140 uhci_intr_info_t *ii = xfer->hcpriv; 2141 2142 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2143 2144 /* Turn off the interrupt since it is active even if the TD is not. */ 2145 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2146 2147 LIST_REMOVE(ii, list); /* remove from active list */ 2148 } 2149 2150 void 2151 uhci_device_intr_done(xfer) 2152 usbd_xfer_handle xfer; 2153 { 2154 uhci_intr_info_t *ii = xfer->hcpriv; 2155 uhci_softc_t *sc = ii->sc; 2156 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2157 uhci_soft_qh_t *sqh; 2158 int i, npoll; 2159 2160 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2161 2162 npoll = upipe->u.intr.npoll; 2163 for(i = 0; i < npoll; i++) { 2164 sqh = upipe->u.intr.qhs[i]; 2165 sqh->elink = 0; 2166 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2167 } 2168 uhci_free_std_chain(sc, ii->stdstart, 0); 2169 2170 /* XXX Wasteful. */ 2171 if (xfer->pipe->repeat) { 2172 uhci_soft_td_t *data, *dataend; 2173 2174 /* This alloc cannot fail since we freed the chain above. */ 2175 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2176 xfer->flags & USBD_SHORT_XFER_OK, 2177 &xfer->dmabuf, &data, &dataend); 2178 dataend->td.td_status |= LE(UHCI_TD_IOC); 2179 2180 #ifdef UHCI_DEBUG 2181 if (uhcidebug > 10) { 2182 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2183 uhci_dump_tds(data); 2184 uhci_dump_qh(upipe->u.intr.qhs[0]); 2185 } 2186 #endif 2187 2188 ii->stdstart = data; 2189 ii->stdend = dataend; 2190 #if defined(__FreeBSD__) 2191 callout_handle_init(&ii->timeout_handle); 2192 #endif 2193 #ifdef DIAGNOSTIC 2194 ii->isdone = 0; 2195 #endif 2196 for (i = 0; i < npoll; i++) { 2197 sqh = upipe->u.intr.qhs[i]; 2198 sqh->elink = data; 2199 sqh->qh.qh_elink = LE(data->physaddr); 2200 } 2201 } else { 2202 ii->stdstart = 0; /* mark as inactive */ 2203 } 2204 } 2205 2206 /* Deallocate request data structures */ 2207 void 2208 uhci_device_ctrl_done(xfer) 2209 usbd_xfer_handle xfer; 2210 { 2211 uhci_intr_info_t *ii = xfer->hcpriv; 2212 uhci_softc_t *sc = ii->sc; 2213 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2214 2215 #ifdef DIAGNOSTIC 2216 if (!(xfer->rqflags & URQ_REQUEST)) 2217 panic("uhci_ctrl_done: not a request\n"); 2218 #endif 2219 2220 LIST_REMOVE(ii, list); /* remove from active list */ 2221 2222 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2223 2224 if (upipe->u.ctl.length != 0) 2225 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2226 2227 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2228 } 2229 2230 /* Deallocate request data structures */ 2231 void 2232 uhci_device_bulk_done(xfer) 2233 usbd_xfer_handle xfer; 2234 { 2235 uhci_intr_info_t *ii = xfer->hcpriv; 2236 uhci_softc_t *sc = ii->sc; 2237 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2238 2239 LIST_REMOVE(ii, list); /* remove from active list */ 2240 2241 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2242 2243 uhci_free_std_chain(sc, ii->stdstart, 0); 2244 2245 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2246 } 2247 2248 /* Add interrupt QH, called with vflock. */ 2249 void 2250 uhci_add_intr(sc, n, sqh) 2251 uhci_softc_t *sc; 2252 int n; 2253 uhci_soft_qh_t *sqh; 2254 { 2255 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2256 uhci_soft_qh_t *eqh; 2257 2258 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2259 eqh = vf->eqh; 2260 sqh->hlink = eqh->hlink; 2261 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2262 eqh->hlink = sqh; 2263 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2264 vf->eqh = sqh; 2265 vf->bandwidth++; 2266 } 2267 2268 /* Remove interrupt QH, called with vflock. */ 2269 void 2270 uhci_remove_intr(sc, n, sqh) 2271 uhci_softc_t *sc; 2272 int n; 2273 uhci_soft_qh_t *sqh; 2274 { 2275 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2276 uhci_soft_qh_t *pqh; 2277 2278 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2279 2280 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2281 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2282 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2283 DPRINTF(("uhci_remove_intr: QH not found\n")); 2284 return; 2285 } 2286 #else 2287 ; 2288 #endif 2289 pqh->hlink = sqh->hlink; 2290 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2291 if (vf->eqh == sqh) 2292 vf->eqh = pqh; 2293 vf->bandwidth--; 2294 } 2295 2296 usbd_status 2297 uhci_device_setintr(sc, upipe, ival) 2298 uhci_softc_t *sc; 2299 struct uhci_pipe *upipe; 2300 int ival; 2301 { 2302 uhci_soft_qh_t *sqh; 2303 int i, npoll, s; 2304 u_int bestbw, bw, bestoffs, offs; 2305 2306 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2307 if (ival == 0) { 2308 printf("uhci_setintr: 0 interval\n"); 2309 return (USBD_INVAL); 2310 } 2311 2312 if (ival > UHCI_VFRAMELIST_COUNT) 2313 ival = UHCI_VFRAMELIST_COUNT; 2314 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2315 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2316 2317 upipe->u.intr.npoll = npoll; 2318 upipe->u.intr.qhs = 2319 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2320 2321 /* 2322 * Figure out which offset in the schedule that has most 2323 * bandwidth left over. 2324 */ 2325 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2326 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2327 for (bw = i = 0; i < npoll; i++) 2328 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2329 if (bw < bestbw) { 2330 bestbw = bw; 2331 bestoffs = offs; 2332 } 2333 } 2334 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2335 2336 upipe->iinfo->stdstart = 0; 2337 for(i = 0; i < npoll; i++) { 2338 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2339 sqh->elink = 0; 2340 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2341 sqh->pos = MOD(i * ival + bestoffs); 2342 sqh->intr_info = upipe->iinfo; 2343 } 2344 #undef MOD 2345 2346 s = splusb(); 2347 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2348 splx(s); 2349 2350 uhci_lock_frames(sc); 2351 /* Enter QHs into the controller data structures. */ 2352 for(i = 0; i < npoll; i++) 2353 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2354 upipe->u.intr.qhs[i]); 2355 uhci_unlock_frames(sc); 2356 2357 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2358 return (USBD_NORMAL_COMPLETION); 2359 } 2360 2361 /* Open a new pipe. */ 2362 usbd_status 2363 uhci_open(pipe) 2364 usbd_pipe_handle pipe; 2365 { 2366 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2367 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2368 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2369 usbd_status err; 2370 2371 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2372 pipe, pipe->device->address, 2373 ed->bEndpointAddress, sc->sc_addr)); 2374 if (pipe->device->address == sc->sc_addr) { 2375 switch (ed->bEndpointAddress) { 2376 case USB_CONTROL_ENDPOINT: 2377 pipe->methods = &uhci_root_ctrl_methods; 2378 break; 2379 case UE_DIR_IN | UHCI_INTR_ENDPT: 2380 pipe->methods = &uhci_root_intr_methods; 2381 break; 2382 default: 2383 return (USBD_INVAL); 2384 } 2385 } else { 2386 upipe->iinfo = uhci_alloc_intr_info(sc); 2387 if (upipe->iinfo == 0) 2388 return (USBD_NOMEM); 2389 switch (ed->bmAttributes & UE_XFERTYPE) { 2390 case UE_CONTROL: 2391 pipe->methods = &uhci_device_ctrl_methods; 2392 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2393 if (upipe->u.ctl.sqh == NULL) 2394 goto bad; 2395 upipe->u.ctl.setup = uhci_alloc_std(sc); 2396 if (upipe->u.ctl.setup == NULL) { 2397 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2398 goto bad; 2399 } 2400 upipe->u.ctl.stat = uhci_alloc_std(sc); 2401 if (upipe->u.ctl.stat == NULL) { 2402 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2403 uhci_free_std(sc, upipe->u.ctl.setup); 2404 goto bad; 2405 } 2406 err = usb_allocmem(&sc->sc_bus, 2407 sizeof(usb_device_request_t), 2408 0, &upipe->u.ctl.reqdma); 2409 if (err) { 2410 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2411 uhci_free_std(sc, upipe->u.ctl.setup); 2412 uhci_free_std(sc, upipe->u.ctl.stat); 2413 goto bad; 2414 } 2415 break; 2416 case UE_INTERRUPT: 2417 pipe->methods = &uhci_device_intr_methods; 2418 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2419 case UE_ISOCHRONOUS: 2420 pipe->methods = &uhci_device_isoc_methods; 2421 return (uhci_setup_isoc(pipe)); 2422 case UE_BULK: 2423 pipe->methods = &uhci_device_bulk_methods; 2424 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2425 if (upipe->u.bulk.sqh == NULL) 2426 goto bad; 2427 break; 2428 } 2429 } 2430 return (USBD_NORMAL_COMPLETION); 2431 2432 bad: 2433 uhci_free_intr_info(upipe->iinfo); 2434 return (USBD_NOMEM); 2435 } 2436 2437 /* 2438 * Data structures and routines to emulate the root hub. 2439 */ 2440 usb_device_descriptor_t uhci_devd = { 2441 USB_DEVICE_DESCRIPTOR_SIZE, 2442 UDESC_DEVICE, /* type */ 2443 {0x00, 0x01}, /* USB version */ 2444 UCLASS_HUB, /* class */ 2445 USUBCLASS_HUB, /* subclass */ 2446 0, /* protocol */ 2447 64, /* max packet */ 2448 {0},{0},{0x00,0x01}, /* device id */ 2449 1,2,0, /* string indicies */ 2450 1 /* # of configurations */ 2451 }; 2452 2453 usb_config_descriptor_t uhci_confd = { 2454 USB_CONFIG_DESCRIPTOR_SIZE, 2455 UDESC_CONFIG, 2456 {USB_CONFIG_DESCRIPTOR_SIZE + 2457 USB_INTERFACE_DESCRIPTOR_SIZE + 2458 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2459 1, 2460 1, 2461 0, 2462 UC_SELF_POWERED, 2463 0 /* max power */ 2464 }; 2465 2466 usb_interface_descriptor_t uhci_ifcd = { 2467 USB_INTERFACE_DESCRIPTOR_SIZE, 2468 UDESC_INTERFACE, 2469 0, 2470 0, 2471 1, 2472 UCLASS_HUB, 2473 USUBCLASS_HUB, 2474 0, 2475 0 2476 }; 2477 2478 usb_endpoint_descriptor_t uhci_endpd = { 2479 USB_ENDPOINT_DESCRIPTOR_SIZE, 2480 UDESC_ENDPOINT, 2481 UE_DIR_IN | UHCI_INTR_ENDPT, 2482 UE_INTERRUPT, 2483 {8}, 2484 255 2485 }; 2486 2487 usb_hub_descriptor_t uhci_hubd_piix = { 2488 USB_HUB_DESCRIPTOR_SIZE, 2489 UDESC_HUB, 2490 2, 2491 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2492 50, /* power on to power good */ 2493 0, 2494 { 0x00 }, /* both ports are removable */ 2495 }; 2496 2497 int 2498 uhci_str(p, l, s) 2499 usb_string_descriptor_t *p; 2500 int l; 2501 char *s; 2502 { 2503 int i; 2504 2505 if (l == 0) 2506 return (0); 2507 p->bLength = 2 * strlen(s) + 2; 2508 if (l == 1) 2509 return (1); 2510 p->bDescriptorType = UDESC_STRING; 2511 l -= 2; 2512 for (i = 0; s[i] && l > 1; i++, l -= 2) 2513 USETW2(p->bString[i], 0, s[i]); 2514 return (2*i+2); 2515 } 2516 2517 /* 2518 * Simulate a hardware hub by handling all the necessary requests. 2519 */ 2520 usbd_status 2521 uhci_root_ctrl_transfer(xfer) 2522 usbd_xfer_handle xfer; 2523 { 2524 usbd_status err; 2525 2526 /* Insert last in queue. */ 2527 err = usb_insert_transfer(xfer); 2528 if (err) 2529 return (err); 2530 2531 /* Pipe isn't running, start first */ 2532 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2533 } 2534 2535 usbd_status 2536 uhci_root_ctrl_start(xfer) 2537 usbd_xfer_handle xfer; 2538 { 2539 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2540 usb_device_request_t *req; 2541 void *buf = NULL; 2542 int port, x; 2543 int s, len, value, index, status, change, l, totlen = 0; 2544 usb_port_status_t ps; 2545 usbd_status err; 2546 2547 #ifdef DIAGNOSTIC 2548 if (!(xfer->rqflags & URQ_REQUEST)) 2549 panic("uhci_root_ctrl_transfer: not a request\n"); 2550 #endif 2551 req = &xfer->request; 2552 2553 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2554 req->bmRequestType, req->bRequest)); 2555 2556 len = UGETW(req->wLength); 2557 value = UGETW(req->wValue); 2558 index = UGETW(req->wIndex); 2559 2560 if (len != 0) 2561 buf = KERNADDR(&xfer->dmabuf); 2562 2563 #define C(x,y) ((x) | ((y) << 8)) 2564 switch(C(req->bRequest, req->bmRequestType)) { 2565 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2566 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2567 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2568 /* 2569 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2570 * for the integrated root hub. 2571 */ 2572 break; 2573 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2574 if (len > 0) { 2575 *(u_int8_t *)buf = sc->sc_conf; 2576 totlen = 1; 2577 } 2578 break; 2579 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2580 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2581 switch(value >> 8) { 2582 case UDESC_DEVICE: 2583 if ((value & 0xff) != 0) { 2584 err = USBD_IOERROR; 2585 goto ret; 2586 } 2587 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2588 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2589 memcpy(buf, &uhci_devd, l); 2590 break; 2591 case UDESC_CONFIG: 2592 if ((value & 0xff) != 0) { 2593 err = USBD_IOERROR; 2594 goto ret; 2595 } 2596 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2597 memcpy(buf, &uhci_confd, l); 2598 buf = (char *)buf + l; 2599 len -= l; 2600 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2601 totlen += l; 2602 memcpy(buf, &uhci_ifcd, l); 2603 buf = (char *)buf + l; 2604 len -= l; 2605 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2606 totlen += l; 2607 memcpy(buf, &uhci_endpd, l); 2608 break; 2609 case UDESC_STRING: 2610 if (len == 0) 2611 break; 2612 *(u_int8_t *)buf = 0; 2613 totlen = 1; 2614 switch (value & 0xff) { 2615 case 1: /* Vendor */ 2616 totlen = uhci_str(buf, len, sc->sc_vendor); 2617 break; 2618 case 2: /* Product */ 2619 totlen = uhci_str(buf, len, "UHCI root hub"); 2620 break; 2621 } 2622 break; 2623 default: 2624 err = USBD_IOERROR; 2625 goto ret; 2626 } 2627 break; 2628 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2629 if (len > 0) { 2630 *(u_int8_t *)buf = 0; 2631 totlen = 1; 2632 } 2633 break; 2634 case C(UR_GET_STATUS, UT_READ_DEVICE): 2635 if (len > 1) { 2636 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2637 totlen = 2; 2638 } 2639 break; 2640 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2641 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2642 if (len > 1) { 2643 USETW(((usb_status_t *)buf)->wStatus, 0); 2644 totlen = 2; 2645 } 2646 break; 2647 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2648 if (value >= USB_MAX_DEVICES) { 2649 err = USBD_IOERROR; 2650 goto ret; 2651 } 2652 sc->sc_addr = value; 2653 break; 2654 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2655 if (value != 0 && value != 1) { 2656 err = USBD_IOERROR; 2657 goto ret; 2658 } 2659 sc->sc_conf = value; 2660 break; 2661 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2662 break; 2663 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2664 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2665 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2666 err = USBD_IOERROR; 2667 goto ret; 2668 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2669 break; 2670 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2671 break; 2672 /* Hub requests */ 2673 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2674 break; 2675 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2676 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2677 "port=%d feature=%d\n", 2678 index, value)); 2679 if (index == 1) 2680 port = UHCI_PORTSC1; 2681 else if (index == 2) 2682 port = UHCI_PORTSC2; 2683 else { 2684 err = USBD_IOERROR; 2685 goto ret; 2686 } 2687 switch(value) { 2688 case UHF_PORT_ENABLE: 2689 x = UREAD2(sc, port); 2690 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2691 break; 2692 case UHF_PORT_SUSPEND: 2693 x = UREAD2(sc, port); 2694 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2695 break; 2696 case UHF_PORT_RESET: 2697 x = UREAD2(sc, port); 2698 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2699 break; 2700 case UHF_C_PORT_CONNECTION: 2701 x = UREAD2(sc, port); 2702 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2703 break; 2704 case UHF_C_PORT_ENABLE: 2705 x = UREAD2(sc, port); 2706 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2707 break; 2708 case UHF_C_PORT_OVER_CURRENT: 2709 x = UREAD2(sc, port); 2710 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2711 break; 2712 case UHF_C_PORT_RESET: 2713 sc->sc_isreset = 0; 2714 err = USBD_NORMAL_COMPLETION; 2715 goto ret; 2716 case UHF_PORT_CONNECTION: 2717 case UHF_PORT_OVER_CURRENT: 2718 case UHF_PORT_POWER: 2719 case UHF_PORT_LOW_SPEED: 2720 case UHF_C_PORT_SUSPEND: 2721 default: 2722 err = USBD_IOERROR; 2723 goto ret; 2724 } 2725 break; 2726 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2727 if (index == 1) 2728 port = UHCI_PORTSC1; 2729 else if (index == 2) 2730 port = UHCI_PORTSC2; 2731 else { 2732 err = USBD_IOERROR; 2733 goto ret; 2734 } 2735 if (len > 0) { 2736 *(u_int8_t *)buf = 2737 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2738 UHCI_PORTSC_LS_SHIFT; 2739 totlen = 1; 2740 } 2741 break; 2742 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2743 if (value != 0) { 2744 err = USBD_IOERROR; 2745 goto ret; 2746 } 2747 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2748 totlen = l; 2749 memcpy(buf, &uhci_hubd_piix, l); 2750 break; 2751 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2752 if (len != 4) { 2753 err = USBD_IOERROR; 2754 goto ret; 2755 } 2756 memset(buf, 0, len); 2757 totlen = len; 2758 break; 2759 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2760 if (index == 1) 2761 port = UHCI_PORTSC1; 2762 else if (index == 2) 2763 port = UHCI_PORTSC2; 2764 else { 2765 err = USBD_IOERROR; 2766 goto ret; 2767 } 2768 if (len != 4) { 2769 err = USBD_IOERROR; 2770 goto ret; 2771 } 2772 x = UREAD2(sc, port); 2773 status = change = 0; 2774 if (x & UHCI_PORTSC_CCS ) 2775 status |= UPS_CURRENT_CONNECT_STATUS; 2776 if (x & UHCI_PORTSC_CSC ) 2777 change |= UPS_C_CONNECT_STATUS; 2778 if (x & UHCI_PORTSC_PE ) 2779 status |= UPS_PORT_ENABLED; 2780 if (x & UHCI_PORTSC_POEDC) 2781 change |= UPS_C_PORT_ENABLED; 2782 if (x & UHCI_PORTSC_OCI ) 2783 status |= UPS_OVERCURRENT_INDICATOR; 2784 if (x & UHCI_PORTSC_OCIC ) 2785 change |= UPS_C_OVERCURRENT_INDICATOR; 2786 if (x & UHCI_PORTSC_SUSP ) 2787 status |= UPS_SUSPEND; 2788 if (x & UHCI_PORTSC_LSDA ) 2789 status |= UPS_LOW_SPEED; 2790 status |= UPS_PORT_POWER; 2791 if (sc->sc_isreset) 2792 change |= UPS_C_PORT_RESET; 2793 USETW(ps.wPortStatus, status); 2794 USETW(ps.wPortChange, change); 2795 l = min(len, sizeof ps); 2796 memcpy(buf, &ps, l); 2797 totlen = l; 2798 break; 2799 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2800 err = USBD_IOERROR; 2801 goto ret; 2802 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2803 break; 2804 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2805 if (index == 1) 2806 port = UHCI_PORTSC1; 2807 else if (index == 2) 2808 port = UHCI_PORTSC2; 2809 else { 2810 err = USBD_IOERROR; 2811 goto ret; 2812 } 2813 switch(value) { 2814 case UHF_PORT_ENABLE: 2815 x = UREAD2(sc, port); 2816 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2817 break; 2818 case UHF_PORT_SUSPEND: 2819 x = UREAD2(sc, port); 2820 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2821 break; 2822 case UHF_PORT_RESET: 2823 x = UREAD2(sc, port); 2824 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2825 usb_delay_ms(&sc->sc_bus, 10); 2826 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2827 delay(100); 2828 x = UREAD2(sc, port); 2829 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2830 delay(100); 2831 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2832 index, UREAD2(sc, port))); 2833 sc->sc_isreset = 1; 2834 break; 2835 case UHF_C_PORT_CONNECTION: 2836 case UHF_C_PORT_ENABLE: 2837 case UHF_C_PORT_OVER_CURRENT: 2838 case UHF_PORT_CONNECTION: 2839 case UHF_PORT_OVER_CURRENT: 2840 case UHF_PORT_POWER: 2841 case UHF_PORT_LOW_SPEED: 2842 case UHF_C_PORT_SUSPEND: 2843 case UHF_C_PORT_RESET: 2844 default: 2845 err = USBD_IOERROR; 2846 goto ret; 2847 } 2848 break; 2849 default: 2850 err = USBD_IOERROR; 2851 goto ret; 2852 } 2853 xfer->actlen = totlen; 2854 err = USBD_NORMAL_COMPLETION; 2855 ret: 2856 xfer->status = err; 2857 xfer->hcpriv = 0; 2858 s = splusb(); 2859 usb_transfer_complete(xfer); 2860 splx(s); 2861 return (USBD_IN_PROGRESS); 2862 } 2863 2864 /* Abort a root control request. */ 2865 void 2866 uhci_root_ctrl_abort(xfer) 2867 usbd_xfer_handle xfer; 2868 { 2869 /* Nothing to do, all transfers are syncronous. */ 2870 } 2871 2872 /* Close the root pipe. */ 2873 void 2874 uhci_root_ctrl_close(pipe) 2875 usbd_pipe_handle pipe; 2876 { 2877 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2878 2879 sc->sc_has_timo = 0; 2880 DPRINTF(("uhci_root_ctrl_close\n")); 2881 } 2882 2883 /* Abort a root interrupt request. */ 2884 void 2885 uhci_root_intr_abort(xfer) 2886 usbd_xfer_handle xfer; 2887 { 2888 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2889 2890 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2891 sc->sc_has_timo = 0; 2892 2893 if (xfer->pipe->intrxfer == xfer) { 2894 DPRINTF(("uhci_root_intr_abort: remove\n")); 2895 xfer->pipe->intrxfer = 0; 2896 } 2897 xfer->status = USBD_CANCELLED; 2898 usb_transfer_complete(xfer); 2899 } 2900 2901 usbd_status 2902 uhci_root_intr_transfer(xfer) 2903 usbd_xfer_handle xfer; 2904 { 2905 usbd_status err; 2906 2907 /* Insert last in queue. */ 2908 err = usb_insert_transfer(xfer); 2909 if (err) 2910 return (err); 2911 2912 /* Pipe isn't running, start first */ 2913 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2914 } 2915 2916 /* Start a transfer on the root interrupt pipe */ 2917 usbd_status 2918 uhci_root_intr_start(xfer) 2919 usbd_xfer_handle xfer; 2920 { 2921 usbd_pipe_handle pipe = xfer->pipe; 2922 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2923 2924 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 2925 xfer, xfer->length, xfer->flags)); 2926 2927 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 2928 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 2929 sc->sc_has_timo = xfer; 2930 return (USBD_IN_PROGRESS); 2931 } 2932 2933 /* Close the root interrupt pipe. */ 2934 void 2935 uhci_root_intr_close(pipe) 2936 usbd_pipe_handle pipe; 2937 { 2938 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2939 2940 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 2941 sc->sc_has_timo = 0; 2942 DPRINTF(("uhci_root_intr_close\n")); 2943 } 2944
Indexes created Tue Sep 30 20:09:53 GMT 2025