1 /* $NetBSD: uhci.c,v 1.71 1999/12/24 13:56:35 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss@carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 46 * USB spec: http://www.usb.org/developers/data/usb11.pdf 47 * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 48 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 49 */ 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 #if defined(__FreeBSD__) 82 #include <machine/clock.h> 83 84 #define delay(d) DELAY(d) 85 #endif 86 87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 88 89 #if defined(__OpenBSD__) 90 struct cfdriver uhci_cd = { 91 NULL, "uhci", DV_DULL 92 }; 93 #endif 94 95 #ifdef UHCI_DEBUG 96 #define DPRINTF(x) if (uhcidebug) printf x 97 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 98 int uhcidebug = 0; 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 /* 105 * The UHCI controller is little endian, so on big endian machines 106 * the data strored in memory needs to be swapped. 107 */ 108 #if BYTE_ORDER == BIG_ENDIAN 109 #define LE(x) (bswap32(x)) 110 #else 111 #define LE(x) (x) 112 #endif 113 114 struct uhci_pipe { 115 struct usbd_pipe pipe; 116 uhci_intr_info_t *iinfo; 117 int nexttoggle; 118 /* Info needed for different pipe kinds. */ 119 union { 120 /* Control pipe */ 121 struct { 122 uhci_soft_qh_t *sqh; 123 usb_dma_t reqdma; 124 uhci_soft_td_t *setup, *stat; 125 u_int length; 126 } ctl; 127 /* Interrupt pipe */ 128 struct { 129 int npoll; 130 uhci_soft_qh_t **qhs; 131 } intr; 132 /* Bulk pipe */ 133 struct { 134 uhci_soft_qh_t *sqh; 135 u_int length; 136 int isread; 137 } bulk; 138 /* Iso pipe */ 139 struct iso { 140 uhci_soft_td_t **stds; 141 int next, inuse; 142 } iso; 143 } u; 144 }; 145 146 /* 147 * The uhci_intr_info free list can be global since they contain 148 * no dma specific data. The other free lists do. 149 */ 150 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 151 152 static void uhci_busreset __P((uhci_softc_t *)); 153 #if defined(__NetBSD__) || defined(__OpenBSD__) 154 static void uhci_power __P((int, void *)); 155 #endif 156 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 157 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 158 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 159 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 160 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 161 static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 162 static void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 163 #if 0 164 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 165 uhci_intr_info_t *)); 166 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 167 #endif 168 169 static void uhci_free_std_chain __P((uhci_softc_t *, 170 uhci_soft_td_t *, uhci_soft_td_t *)); 171 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 172 uhci_softc_t *, int, int, int, usb_dma_t *, 173 uhci_soft_td_t **, uhci_soft_td_t **)); 174 static void uhci_timo __P((void *)); 175 static void uhci_waitintr __P((uhci_softc_t *, 176 usbd_xfer_handle)); 177 static void uhci_check_intr __P((uhci_softc_t *, 178 uhci_intr_info_t *)); 179 static void uhci_idone __P((uhci_intr_info_t *)); 180 static void uhci_abort_xfer __P((usbd_xfer_handle, 181 usbd_status status)); 182 static void uhci_abort_xfer_end __P((void *v)); 183 static void uhci_timeout __P((void *)); 184 static void uhci_lock_frames __P((uhci_softc_t *)); 185 static void uhci_unlock_frames __P((uhci_softc_t *)); 186 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 187 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 188 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 189 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 190 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 191 192 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 193 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 194 195 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 196 u_int32_t)); 197 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 198 199 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 200 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 201 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 202 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 203 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 204 205 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 206 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 207 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 208 static void uhci_device_intr_close __P((usbd_pipe_handle)); 209 static void uhci_device_intr_done __P((usbd_xfer_handle)); 210 211 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 212 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 213 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 214 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 215 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 216 217 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 218 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 219 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 220 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 221 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 222 223 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 224 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 225 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 226 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 227 228 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 229 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 230 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 231 static void uhci_root_intr_close __P((usbd_pipe_handle)); 232 static void uhci_root_intr_done __P((usbd_xfer_handle)); 233 234 static usbd_status uhci_open __P((usbd_pipe_handle)); 235 static void uhci_poll __P((struct usbd_bus *)); 236 237 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 238 239 static void uhci_add_intr __P((uhci_softc_t *, int, 240 uhci_soft_qh_t *)); 241 static void uhci_remove_intr __P((uhci_softc_t *, int, 242 uhci_soft_qh_t *)); 243 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 244 struct uhci_pipe *pipe, int ival)); 245 246 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 247 static void uhci_noop __P((usbd_pipe_handle pipe)); 248 249 #ifdef UHCI_DEBUG 250 static void uhci_dumpregs __P((uhci_softc_t *)); 251 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 252 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 253 static void uhci_dump_tds __P((uhci_soft_td_t *)); 254 static void uhci_dump_td __P((uhci_soft_td_t *)); 255 #endif 256 257 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 258 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 259 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 260 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 261 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 262 263 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 264 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 265 266 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 267 268 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 269 270 #define UHCI_INTR_ENDPT 1 271 272 struct usbd_bus_methods uhci_bus_methods = { 273 uhci_open, 274 uhci_poll, 275 uhci_allocm, 276 uhci_freem, 277 }; 278 279 struct usbd_pipe_methods uhci_root_ctrl_methods = { 280 uhci_root_ctrl_transfer, 281 uhci_root_ctrl_start, 282 uhci_root_ctrl_abort, 283 uhci_root_ctrl_close, 284 uhci_noop, 285 0, 286 }; 287 288 struct usbd_pipe_methods uhci_root_intr_methods = { 289 uhci_root_intr_transfer, 290 uhci_root_intr_start, 291 uhci_root_intr_abort, 292 uhci_root_intr_close, 293 uhci_noop, 294 uhci_root_intr_done, 295 }; 296 297 struct usbd_pipe_methods uhci_device_ctrl_methods = { 298 uhci_device_ctrl_transfer, 299 uhci_device_ctrl_start, 300 uhci_device_ctrl_abort, 301 uhci_device_ctrl_close, 302 uhci_noop, 303 uhci_device_ctrl_done, 304 }; 305 306 struct usbd_pipe_methods uhci_device_intr_methods = { 307 uhci_device_intr_transfer, 308 uhci_device_intr_start, 309 uhci_device_intr_abort, 310 uhci_device_intr_close, 311 uhci_device_clear_toggle, 312 uhci_device_intr_done, 313 }; 314 315 struct usbd_pipe_methods uhci_device_bulk_methods = { 316 uhci_device_bulk_transfer, 317 uhci_device_bulk_start, 318 uhci_device_bulk_abort, 319 uhci_device_bulk_close, 320 uhci_device_clear_toggle, 321 uhci_device_bulk_done, 322 }; 323 324 struct usbd_pipe_methods uhci_device_isoc_methods = { 325 uhci_device_isoc_transfer, 326 uhci_device_isoc_start, 327 uhci_device_isoc_abort, 328 uhci_device_isoc_close, 329 uhci_noop, 330 uhci_device_isoc_done, 331 }; 332 333 void 334 uhci_busreset(sc) 335 uhci_softc_t *sc; 336 { 337 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 338 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 339 UHCICMD(sc, 0); /* do nothing */ 340 } 341 342 usbd_status 343 uhci_init(sc) 344 uhci_softc_t *sc; 345 { 346 usbd_status err; 347 int i, j; 348 uhci_soft_qh_t *csqh, *bsqh, *sqh; 349 uhci_soft_td_t *std; 350 351 DPRINTFN(1,("uhci_init: start\n")); 352 353 #ifdef UHCI_DEBUG 354 if (uhcidebug > 2) 355 uhci_dumpregs(sc); 356 #endif 357 358 uhci_run(sc, 0); /* stop the controller */ 359 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 360 361 uhci_busreset(sc); 362 363 /* Allocate and initialize real frame array. */ 364 err = usb_allocmem(&sc->sc_bus, 365 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 366 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 367 if (err) 368 return (err); 369 sc->sc_pframes = KERNADDR(&sc->sc_dma); 370 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 371 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 372 373 /* Allocate the dummy QH where bulk traffic will be queued. */ 374 bsqh = uhci_alloc_sqh(sc); 375 if (bsqh == NULL) 376 return (USBD_NOMEM); 377 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 378 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 379 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 380 381 /* Allocate the dummy QH where control traffic will be queued. */ 382 csqh = uhci_alloc_sqh(sc); 383 if (csqh == NULL) 384 return (USBD_NOMEM); 385 csqh->hlink = bsqh; 386 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 387 csqh->qh.qh_elink = LE(UHCI_PTR_T); 388 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 389 390 /* 391 * Make all (virtual) frame list pointers point to the interrupt 392 * queue heads and the interrupt queue heads at the control 393 * queue head and point the physical frame list to the virtual. 394 */ 395 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 396 std = uhci_alloc_std(sc); 397 sqh = uhci_alloc_sqh(sc); 398 if (std == NULL || sqh == NULL) 399 return (USBD_NOMEM); 400 std->link.sqh = sqh; 401 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 402 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 403 std->td.td_token = LE(0); 404 std->td.td_buffer = LE(0); 405 sqh->hlink = csqh; 406 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 407 sqh->elink = 0; 408 sqh->qh.qh_elink = LE(UHCI_PTR_T); 409 sc->sc_vframes[i].htd = std; 410 sc->sc_vframes[i].etd = std; 411 sc->sc_vframes[i].hqh = sqh; 412 sc->sc_vframes[i].eqh = sqh; 413 for (j = i; 414 j < UHCI_FRAMELIST_COUNT; 415 j += UHCI_VFRAMELIST_COUNT) 416 sc->sc_pframes[j] = LE(std->physaddr); 417 } 418 419 LIST_INIT(&sc->sc_intrhead); 420 421 /* Set up the bus struct. */ 422 sc->sc_bus.methods = &uhci_bus_methods; 423 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 424 425 sc->sc_suspend = PWR_RESUME; 426 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 427 428 DPRINTFN(1,("uhci_init: enabling\n")); 429 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 430 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 431 432 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 433 434 return (uhci_run(sc, 1)); /* and here we go... */ 435 } 436 437 #if defined(__NetBSD__) || defined(__OpenBSD__) 438 int 439 uhci_activate(self, act) 440 device_ptr_t self; 441 enum devact act; 442 { 443 struct uhci_softc *sc = (struct uhci_softc *)self; 444 int rv = 0; 445 446 switch (act) { 447 case DVACT_ACTIVATE: 448 return (EOPNOTSUPP); 449 break; 450 451 case DVACT_DEACTIVATE: 452 if (sc->sc_child != NULL) 453 rv = config_deactivate(sc->sc_child); 454 break; 455 } 456 return (rv); 457 } 458 459 int 460 uhci_detach(sc, flags) 461 struct uhci_softc *sc; 462 int flags; 463 { 464 int rv = 0; 465 466 if (sc->sc_child != NULL) 467 rv = config_detach(sc->sc_child, flags); 468 469 if (rv != 0) 470 return (rv); 471 472 powerhook_disestablish(sc->sc_powerhook); 473 /* free data structures XXX */ 474 475 return (rv); 476 } 477 #endif 478 479 usbd_status 480 uhci_allocm(bus, dma, size) 481 struct usbd_bus *bus; 482 usb_dma_t *dma; 483 u_int32_t size; 484 { 485 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 486 dma)); 487 } 488 489 void 490 uhci_freem(bus, dma) 491 struct usbd_bus *bus; 492 usb_dma_t *dma; 493 { 494 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 495 } 496 497 #if defined(__NetBSD__) 498 /* 499 * Handle suspend/resume. 500 * 501 * We need to switch to polling mode here, because this routine is 502 * called from an intterupt context. This is all right since we 503 * are almost suspended anyway. 504 */ 505 void 506 uhci_power(why, v) 507 int why; 508 void *v; 509 { 510 uhci_softc_t *sc = v; 511 int cmd; 512 int s; 513 514 s = splusb(); 515 cmd = UREAD2(sc, UHCI_CMD); 516 517 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 518 sc, why, sc->sc_suspend, cmd)); 519 520 if (why != PWR_RESUME) { 521 #ifdef UHCI_DEBUG 522 if (uhcidebug > 2) 523 uhci_dumpregs(sc); 524 #endif 525 if (sc->sc_has_timo != NULL) 526 usb_untimeout(uhci_timo, sc->sc_has_timo, 527 sc->sc_has_timo->timo_handle); 528 sc->sc_bus.use_polling++; 529 uhci_run(sc, 0); /* stop the controller */ 530 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 531 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 532 sc->sc_suspend = why; 533 sc->sc_bus.use_polling--; 534 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 535 } else { 536 /* 537 * XXX We should really do much more here in case the 538 * controller registers have been lost and BIOS has 539 * not restored them. 540 */ 541 #ifdef DIAGNOSTIC 542 if (sc->sc_suspend == PWR_RESUME) 543 printf("uhci_power: weird, resume without suspend.\n"); 544 #endif 545 sc->sc_bus.use_polling++; 546 sc->sc_suspend = why; 547 if (cmd & UHCI_CMD_RS) 548 uhci_run(sc, 0); /* in case BIOS has started it */ 549 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 550 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 551 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 552 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 553 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 554 uhci_run(sc, 1); /* and start traffic again */ 555 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 556 sc->sc_bus.use_polling--; 557 if (sc->sc_has_timo != NULL) 558 usb_timeout(uhci_timo, sc->sc_has_timo, 559 sc->sc_ival, sc->sc_has_timo->timo_handle); 560 #ifdef UHCI_DEBUG 561 if (uhcidebug > 2) 562 uhci_dumpregs(sc); 563 #endif 564 } 565 splx(s); 566 } 567 #endif /* defined(__NetBSD__) */ 568 569 #ifdef UHCI_DEBUG 570 static void 571 uhci_dumpregs(sc) 572 uhci_softc_t *sc; 573 { 574 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 575 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 576 USBDEVNAME(sc->sc_bus.bdev), 577 UREAD2(sc, UHCI_CMD), 578 UREAD2(sc, UHCI_STS), 579 UREAD2(sc, UHCI_INTR), 580 UREAD2(sc, UHCI_FRNUM), 581 UREAD4(sc, UHCI_FLBASEADDR), 582 UREAD1(sc, UHCI_SOF), 583 UREAD2(sc, UHCI_PORTSC1), 584 UREAD2(sc, UHCI_PORTSC2))); 585 } 586 587 void 588 uhci_dump_td(p) 589 uhci_soft_td_t *p; 590 { 591 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 592 "token=0x%08lx buffer=0x%08lx\n", 593 p, (long)p->physaddr, 594 (long)LE(p->td.td_link), 595 (long)LE(p->td.td_status), 596 (long)LE(p->td.td_token), 597 (long)LE(p->td.td_buffer))); 598 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 599 "D=%d,maxlen=%d\n", 600 (int)LE(p->td.td_link), 601 "\20\1T\2Q\3VF", 602 (int)LE(p->td.td_status), 603 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 604 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 605 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 606 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 607 UHCI_TD_GET_PID(LE(p->td.td_token)), 608 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 609 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 610 UHCI_TD_GET_DT(LE(p->td.td_token)), 611 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 612 } 613 614 void 615 uhci_dump_qh(sqh) 616 uhci_soft_qh_t *sqh; 617 { 618 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 619 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 620 } 621 622 623 #if 0 624 void 625 uhci_dump() 626 { 627 uhci_softc_t *sc = uhci; 628 629 uhci_dumpregs(sc); 630 printf("intrs=%d\n", sc->sc_bus.no_intrs); 631 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 632 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 633 } 634 #endif 635 636 637 void 638 uhci_dump_qhs(sqh) 639 uhci_soft_qh_t *sqh; 640 { 641 uhci_dump_qh(sqh); 642 643 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 644 * Traverses sideways first, then down. 645 * 646 * QH1 647 * QH2 648 * No QH 649 * TD2.1 650 * TD2.2 651 * TD1.1 652 * etc. 653 * 654 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 655 */ 656 657 658 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 659 uhci_dump_qhs(sqh->hlink); 660 else 661 DPRINTF(("No QH\n")); 662 663 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 664 uhci_dump_tds(sqh->elink); 665 else 666 DPRINTF(("No TD\n")); 667 } 668 669 void 670 uhci_dump_tds(std) 671 uhci_soft_td_t *std; 672 { 673 uhci_soft_td_t *td; 674 675 for(td = std; td != NULL; td = td->link.std) { 676 uhci_dump_td(td); 677 678 /* Check whether the link pointer in this TD marks 679 * the link pointer as end of queue. This avoids 680 * printing the free list in case the queue/TD has 681 * already been moved there (seatbelt). 682 */ 683 if (td->td.td_link & UHCI_PTR_T || 684 td->td.td_link == 0) 685 break; 686 } 687 } 688 #endif 689 690 /* 691 * This routine is executed periodically and simulates interrupts 692 * from the root controller interrupt pipe for port status change. 693 */ 694 void 695 uhci_timo(addr) 696 void *addr; 697 { 698 usbd_xfer_handle xfer = addr; 699 usbd_pipe_handle pipe = xfer->pipe; 700 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 701 int s; 702 u_char *p; 703 704 DPRINTFN(20, ("uhci_timo\n")); 705 706 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 707 708 p = KERNADDR(&xfer->dmabuf); 709 p[0] = 0; 710 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 711 p[0] |= 1<<1; 712 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 713 p[0] |= 1<<2; 714 if (p[0] == 0) 715 /* No change, try again in a while */ 716 return; 717 718 xfer->actlen = 1; 719 xfer->status = USBD_NORMAL_COMPLETION; 720 s = splusb(); 721 xfer->hcpriv = 0; 722 xfer->device->bus->intr_context++; 723 usb_transfer_complete(xfer); 724 xfer->device->bus->intr_context--; 725 splx(s); 726 } 727 728 void 729 uhci_root_intr_done(xfer) 730 usbd_xfer_handle xfer; 731 { 732 } 733 734 735 void 736 uhci_lock_frames(sc) 737 uhci_softc_t *sc; 738 { 739 int s = splusb(); 740 741 while (sc->sc_vflock) { 742 sc->sc_vflock |= UHCI_WANT_LOCK; 743 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 744 } 745 sc->sc_vflock = UHCI_HAS_LOCK; 746 splx(s); 747 } 748 749 void 750 uhci_unlock_frames(sc) 751 uhci_softc_t *sc; 752 { 753 int s = splusb(); 754 755 sc->sc_vflock &= ~UHCI_HAS_LOCK; 756 if (sc->sc_vflock & UHCI_WANT_LOCK) 757 wakeup(&sc->sc_vflock); 758 splx(s); 759 } 760 761 /* 762 * Allocate an interrupt information struct. A free list is kept 763 * for fast allocation. 764 */ 765 uhci_intr_info_t * 766 uhci_alloc_intr_info(sc) 767 uhci_softc_t *sc; 768 { 769 uhci_intr_info_t *ii; 770 771 ii = LIST_FIRST(&uhci_ii_free); 772 if (ii) 773 LIST_REMOVE(ii, list); 774 else { 775 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 776 } 777 ii->sc = sc; 778 #if defined(__FreeBSD__) 779 callout_handle_init(&ii->timeout_handle); 780 #endif 781 782 return ii; 783 } 784 785 void 786 uhci_free_intr_info(ii) 787 uhci_intr_info_t *ii; 788 { 789 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 790 } 791 792 /* Add control QH, called at splusb(). */ 793 void 794 uhci_add_ctrl(sc, sqh) 795 uhci_softc_t *sc; 796 uhci_soft_qh_t *sqh; 797 { 798 uhci_soft_qh_t *eqh; 799 800 SPLUSBCHECK; 801 802 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 803 eqh = sc->sc_ctl_end; 804 sqh->hlink = eqh->hlink; 805 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 806 eqh->hlink = sqh; 807 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 808 sc->sc_ctl_end = sqh; 809 } 810 811 /* Remove control QH, called at splusb(). */ 812 void 813 uhci_remove_ctrl(sc, sqh) 814 uhci_softc_t *sc; 815 uhci_soft_qh_t *sqh; 816 { 817 uhci_soft_qh_t *pqh; 818 819 SPLUSBCHECK; 820 821 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 822 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 823 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 824 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 825 printf("uhci_remove_ctrl: QH not found\n"); 826 return; 827 } 828 #else 829 ; 830 #endif 831 pqh->hlink = sqh->hlink; 832 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 833 if (sc->sc_ctl_end == sqh) 834 sc->sc_ctl_end = pqh; 835 } 836 837 /* Add bulk QH, called at splusb(). */ 838 void 839 uhci_add_bulk(sc, sqh) 840 uhci_softc_t *sc; 841 uhci_soft_qh_t *sqh; 842 { 843 uhci_soft_qh_t *eqh; 844 845 SPLUSBCHECK; 846 847 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 848 eqh = sc->sc_bulk_end; 849 sqh->hlink = eqh->hlink; 850 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 851 eqh->hlink = sqh; 852 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 853 sc->sc_bulk_end = sqh; 854 } 855 856 /* Remove bulk QH, called at splusb(). */ 857 void 858 uhci_remove_bulk(sc, sqh) 859 uhci_softc_t *sc; 860 uhci_soft_qh_t *sqh; 861 { 862 uhci_soft_qh_t *pqh; 863 864 SPLUSBCHECK; 865 866 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 867 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 868 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 869 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 870 printf("uhci_remove_bulk: QH not found\n"); 871 return; 872 } 873 #else 874 ; 875 #endif 876 pqh->hlink = sqh->hlink; 877 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 878 if (sc->sc_bulk_end == sqh) 879 sc->sc_bulk_end = pqh; 880 } 881 882 int 883 uhci_intr(arg) 884 void *arg; 885 { 886 uhci_softc_t *sc = arg; 887 int status; 888 int ack; 889 uhci_intr_info_t *ii; 890 891 #ifdef UHCI_DEBUG 892 if (uhcidebug > 15) { 893 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 894 uhci_dumpregs(sc); 895 } 896 #endif 897 898 status = UREAD2(sc, UHCI_STS); 899 if (status == 0) /* The interrupt was not for us. */ 900 return (0); 901 902 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 903 if (sc->sc_suspend != PWR_RESUME) 904 printf("uhci_intr: suspended sts=0x%x\n", status); 905 #endif 906 907 ack = 0; 908 if (status & UHCI_STS_USBINT) 909 ack |= UHCI_STS_USBINT; 910 if (status & UHCI_STS_USBEI) 911 ack |= UHCI_STS_USBEI; 912 if (status & UHCI_STS_RD) { 913 ack |= UHCI_STS_RD; 914 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 915 } 916 if (status & UHCI_STS_HSE) { 917 ack |= UHCI_STS_HSE; 918 printf("%s: host controller process error\n", 919 USBDEVNAME(sc->sc_bus.bdev)); 920 } 921 if (status & UHCI_STS_HCPE) { 922 ack |= UHCI_STS_HCPE; 923 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 924 } 925 if (status & UHCI_STS_HCH) { 926 /* no acknowledge needed */ 927 printf("%s: host controller halted\n", 928 USBDEVNAME(sc->sc_bus.bdev)); 929 } 930 931 if (ack) /* acknowledge the ints */ 932 UWRITE2(sc, UHCI_STS, ack); 933 else /* nothing to acknowledge */ 934 return (0); 935 936 sc->sc_bus.intr_context++; 937 sc->sc_bus.no_intrs++; 938 939 /* 940 * Interrupts on UHCI really suck. When the host controller 941 * interrupts because a transfer is completed there is no 942 * way of knowing which transfer it was. You can scan down 943 * the TDs and QHs of the previous frame to limit the search, 944 * but that assumes that the interrupt was not delayed by more 945 * than 1 ms, which may not always be true (e.g. after debug 946 * output on a slow console). 947 * We scan all interrupt descriptors to see if any have 948 * completed. 949 */ 950 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 951 uhci_check_intr(sc, ii); 952 953 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 954 955 sc->sc_bus.intr_context--; 956 957 return (1); 958 } 959 960 /* Check for an interrupt. */ 961 void 962 uhci_check_intr(sc, ii) 963 uhci_softc_t *sc; 964 uhci_intr_info_t *ii; 965 { 966 uhci_soft_td_t *std, *lstd; 967 u_int32_t status; 968 969 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 970 #ifdef DIAGNOSTIC 971 if (ii == NULL) { 972 printf("uhci_check_intr: no ii? %p\n", ii); 973 return; 974 } 975 #endif 976 if (ii->stdstart == NULL) 977 return; 978 lstd = ii->stdend; 979 #ifdef DIAGNOSTIC 980 if (lstd == NULL) { 981 printf("uhci_check_intr: std==0\n"); 982 return; 983 } 984 #endif 985 /* 986 * If the last TD is still active we need to check whether there 987 * is a an error somewhere in the middle, or whether there was a 988 * short packet (SPD and not ACTIVE). 989 */ 990 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 991 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 992 for (std = ii->stdstart; std != lstd; std = std->link.std) { 993 status = LE(std->td.td_status); 994 if ((status & UHCI_TD_STALLED) || 995 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 996 UHCI_TD_SPD) 997 goto done; 998 } 999 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 1000 ii, ii->stdstart)); 1001 return; 1002 } 1003 done: 1004 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1005 uhci_idone(ii); 1006 } 1007 1008 /* Called at splusb() */ 1009 void 1010 uhci_idone(ii) 1011 uhci_intr_info_t *ii; 1012 { 1013 usbd_xfer_handle xfer = ii->xfer; 1014 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1015 uhci_soft_td_t *std; 1016 u_int32_t status = 0, nstatus; 1017 int actlen; 1018 1019 #ifdef DIAGNOSTIC 1020 { 1021 int s = splhigh(); 1022 if (ii->isdone) { 1023 splx(s); 1024 printf("uhci_idone: ii=%p is done!\n", ii); 1025 return; 1026 } 1027 ii->isdone = 1; 1028 splx(s); 1029 } 1030 #endif 1031 1032 if (xfer->status == USBD_CANCELLED || 1033 xfer->status == USBD_TIMEOUT) { 1034 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1035 return; 1036 } 1037 1038 if (xfer->nframes != 0) { 1039 /* Isoc transfer, do things differently. */ 1040 uhci_soft_td_t **stds = upipe->u.iso.stds; 1041 int i, n, nframes; 1042 1043 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1044 1045 nframes = xfer->nframes; 1046 actlen = 0; 1047 n = xfer->hcprivint; 1048 for (i = 0; i < nframes; i++) { 1049 std = stds[n]; 1050 #ifdef UHCI_DEBUG 1051 if (uhcidebug > 5) { 1052 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1053 uhci_dump_td(std); 1054 } 1055 #endif 1056 if (++n >= UHCI_VFRAMELIST_COUNT) 1057 n = 0; 1058 status = LE(std->td.td_status); 1059 actlen += UHCI_TD_GET_ACTLEN(status); 1060 } 1061 upipe->u.iso.inuse -= nframes; 1062 xfer->actlen = actlen; 1063 xfer->status = USBD_NORMAL_COMPLETION; 1064 xfer->hcpriv = ii; 1065 usb_transfer_complete(xfer); 1066 return; 1067 } 1068 1069 #ifdef UHCI_DEBUG 1070 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1071 ii, xfer, upipe)); 1072 if (uhcidebug > 10) 1073 uhci_dump_tds(ii->stdstart); 1074 #endif 1075 1076 /* The transfer is done, compute actual length and status. */ 1077 actlen = 0; 1078 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1079 nstatus = LE(std->td.td_status); 1080 if (nstatus & UHCI_TD_ACTIVE) 1081 break; 1082 1083 status = nstatus; 1084 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1085 actlen += UHCI_TD_GET_ACTLEN(status); 1086 } 1087 /* If there are left over TDs we need to update the toggle. */ 1088 if (std != NULL) 1089 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1090 1091 status &= UHCI_TD_ERROR; 1092 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1093 actlen, status)); 1094 xfer->actlen = actlen; 1095 if (status != 0) { 1096 DPRINTFN((status&UHCI_TD_STALLED)*10, 1097 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1098 "status 0x%b\n", 1099 xfer->pipe->device->address, 1100 xfer->pipe->endpoint->edesc->bEndpointAddress, 1101 (int)status, 1102 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1103 "STALLED\30ACTIVE")); 1104 if (status == UHCI_TD_STALLED) 1105 xfer->status = USBD_STALLED; 1106 else 1107 xfer->status = USBD_IOERROR; /* more info XXX */ 1108 } else { 1109 xfer->status = USBD_NORMAL_COMPLETION; 1110 } 1111 xfer->hcpriv = ii; 1112 usb_transfer_complete(xfer); 1113 } 1114 1115 /* 1116 * Called when a request does not complete. 1117 */ 1118 void 1119 uhci_timeout(addr) 1120 void *addr; 1121 { 1122 uhci_intr_info_t *ii = addr; 1123 1124 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1125 1126 #ifdef UHCI_DEBUG 1127 if (uhcidebug > 10) 1128 uhci_dump_tds(ii->stdstart); 1129 #endif 1130 1131 ii->xfer->device->bus->intr_context++; 1132 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1133 ii->xfer->device->bus->intr_context--; 1134 } 1135 1136 /* 1137 * Wait here until controller claims to have an interrupt. 1138 * Then call uhci_intr and return. Use timeout to avoid waiting 1139 * too long. 1140 * Only used during boot when interrupts are not enabled yet. 1141 */ 1142 void 1143 uhci_waitintr(sc, xfer) 1144 uhci_softc_t *sc; 1145 usbd_xfer_handle xfer; 1146 { 1147 int timo = xfer->timeout; 1148 uhci_intr_info_t *ii; 1149 1150 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1151 1152 xfer->status = USBD_IN_PROGRESS; 1153 for (; timo >= 0; timo--) { 1154 usb_delay_ms(&sc->sc_bus, 1); 1155 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1156 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1157 uhci_intr(sc); 1158 if (xfer->status != USBD_IN_PROGRESS) 1159 return; 1160 } 1161 } 1162 1163 /* Timeout */ 1164 DPRINTF(("uhci_waitintr: timeout\n")); 1165 for (ii = LIST_FIRST(&sc->sc_intrhead); 1166 ii != NULL && ii->xfer != xfer; 1167 ii = LIST_NEXT(ii, list)) 1168 ; 1169 #ifdef DIAGNOSTIC 1170 if (ii == NULL) 1171 panic("uhci_waitintr: lost intr_info\n"); 1172 #endif 1173 uhci_idone(ii); 1174 } 1175 1176 void 1177 uhci_poll(bus) 1178 struct usbd_bus *bus; 1179 { 1180 uhci_softc_t *sc = (uhci_softc_t *)bus; 1181 1182 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1183 uhci_intr(sc); 1184 } 1185 1186 #if 0 1187 void 1188 uhci_reset(p) 1189 void *p; 1190 { 1191 uhci_softc_t *sc = p; 1192 int n; 1193 1194 UHCICMD(sc, UHCI_CMD_HCRESET); 1195 /* The reset bit goes low when the controller is done. */ 1196 for (n = 0; n < UHCI_RESET_TIMEOUT && 1197 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1198 delay(100); 1199 if (n >= UHCI_RESET_TIMEOUT) 1200 printf("%s: controller did not reset\n", 1201 USBDEVNAME(sc->sc_bus.bdev)); 1202 } 1203 #endif 1204 1205 usbd_status 1206 uhci_run(sc, run) 1207 uhci_softc_t *sc; 1208 int run; 1209 { 1210 int s, n, running; 1211 u_int16_t cmd; 1212 1213 run = run != 0; 1214 s = splusb(); 1215 DPRINTF(("uhci_run: setting run=%d\n", run)); 1216 cmd = UREAD2(sc, UHCI_CMD); 1217 if (run) 1218 cmd |= UHCI_CMD_RS; 1219 else 1220 cmd &= ~UHCI_CMD_RS; 1221 UHCICMD(sc, cmd); 1222 for(n = 0; n < 10; n++) { 1223 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1224 /* return when we've entered the state we want */ 1225 if (run == running) { 1226 splx(s); 1227 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1228 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1229 return (USBD_NORMAL_COMPLETION); 1230 } 1231 usb_delay_ms(&sc->sc_bus, 1); 1232 } 1233 splx(s); 1234 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1235 run ? "start" : "stop"); 1236 return (USBD_IOERROR); 1237 } 1238 1239 /* 1240 * Memory management routines. 1241 * uhci_alloc_std allocates TDs 1242 * uhci_alloc_sqh allocates QHs 1243 * These two routines do their own free list management, 1244 * partly for speed, partly because allocating DMAable memory 1245 * has page size granularaity so much memory would be wasted if 1246 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1247 */ 1248 1249 uhci_soft_td_t * 1250 uhci_alloc_std(sc) 1251 uhci_softc_t *sc; 1252 { 1253 uhci_soft_td_t *std; 1254 usbd_status err; 1255 int i, offs; 1256 usb_dma_t dma; 1257 1258 if (sc->sc_freetds == NULL) { 1259 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1260 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1261 UHCI_TD_ALIGN, &dma); 1262 if (err) 1263 return (0); 1264 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1265 offs = i * UHCI_STD_SIZE; 1266 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1267 std->physaddr = DMAADDR(&dma) + offs; 1268 std->link.std = sc->sc_freetds; 1269 sc->sc_freetds = std; 1270 } 1271 } 1272 std = sc->sc_freetds; 1273 sc->sc_freetds = std->link.std; 1274 memset(&std->td, 0, sizeof(uhci_td_t)); 1275 return std; 1276 } 1277 1278 void 1279 uhci_free_std(sc, std) 1280 uhci_softc_t *sc; 1281 uhci_soft_td_t *std; 1282 { 1283 #ifdef DIAGNOSTIC 1284 #define TD_IS_FREE 0x12345678 1285 if (std->td.td_token == LE(TD_IS_FREE)) { 1286 printf("uhci_free_std: freeing free TD %p\n", std); 1287 return; 1288 } 1289 std->td.td_token = LE(TD_IS_FREE); 1290 #endif 1291 std->link.std = sc->sc_freetds; 1292 sc->sc_freetds = std; 1293 } 1294 1295 uhci_soft_qh_t * 1296 uhci_alloc_sqh(sc) 1297 uhci_softc_t *sc; 1298 { 1299 uhci_soft_qh_t *sqh; 1300 usbd_status err; 1301 int i, offs; 1302 usb_dma_t dma; 1303 1304 if (sc->sc_freeqhs == NULL) { 1305 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1306 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1307 UHCI_QH_ALIGN, &dma); 1308 if (err) 1309 return (0); 1310 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1311 offs = i * UHCI_SQH_SIZE; 1312 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1313 sqh->physaddr = DMAADDR(&dma) + offs; 1314 sqh->hlink = sc->sc_freeqhs; 1315 sc->sc_freeqhs = sqh; 1316 } 1317 } 1318 sqh = sc->sc_freeqhs; 1319 sc->sc_freeqhs = sqh->hlink; 1320 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1321 return (sqh); 1322 } 1323 1324 void 1325 uhci_free_sqh(sc, sqh) 1326 uhci_softc_t *sc; 1327 uhci_soft_qh_t *sqh; 1328 { 1329 sqh->hlink = sc->sc_freeqhs; 1330 sc->sc_freeqhs = sqh; 1331 } 1332 1333 #if 0 1334 /* 1335 * Enter a list of transfers onto a control queue. 1336 * Called at splusb() 1337 */ 1338 void 1339 uhci_enter_ctl_q(sc, sqh, ii) 1340 uhci_softc_t *sc; 1341 uhci_soft_qh_t *sqh; 1342 uhci_intr_info_t *ii; 1343 { 1344 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1345 1346 } 1347 #endif 1348 1349 void 1350 uhci_free_std_chain(sc, std, stdend) 1351 uhci_softc_t *sc; 1352 uhci_soft_td_t *std; 1353 uhci_soft_td_t *stdend; 1354 { 1355 uhci_soft_td_t *p; 1356 1357 for (; std != stdend; std = p) { 1358 p = std->link.std; 1359 uhci_free_std(sc, std); 1360 } 1361 } 1362 1363 usbd_status 1364 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1365 struct uhci_pipe *upipe; 1366 uhci_softc_t *sc; 1367 int len, rd, shortok; 1368 usb_dma_t *dma; 1369 uhci_soft_td_t **sp, **ep; 1370 { 1371 uhci_soft_td_t *p, *lastp; 1372 uhci_physaddr_t lastlink; 1373 int i, ntd, l, tog, maxp; 1374 u_int32_t status; 1375 int addr = upipe->pipe.device->address; 1376 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1377 1378 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1379 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1380 upipe->pipe.device->lowspeed, shortok)); 1381 if (len == 0) { 1382 *sp = *ep = 0; 1383 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1384 return (USBD_NORMAL_COMPLETION); 1385 } 1386 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1387 if (maxp == 0) { 1388 printf("uhci_alloc_std_chain: maxp=0\n"); 1389 return (USBD_INVAL); 1390 } 1391 ntd = (len + maxp - 1) / maxp; 1392 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1393 tog = upipe->nexttoggle; 1394 if (ntd % 2 == 0) 1395 tog ^= 1; 1396 upipe->nexttoggle = tog ^ 1; 1397 lastp = 0; 1398 lastlink = UHCI_PTR_T; 1399 ntd--; 1400 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1401 if (upipe->pipe.device->lowspeed) 1402 status |= UHCI_TD_LS; 1403 if (shortok) 1404 status |= UHCI_TD_SPD; 1405 for (i = ntd; i >= 0; i--) { 1406 p = uhci_alloc_std(sc); 1407 if (p == NULL) { 1408 uhci_free_std_chain(sc, lastp, 0); 1409 return (USBD_NOMEM); 1410 } 1411 p->link.std = lastp; 1412 if (lastlink == UHCI_PTR_T) 1413 p->td.td_link = LE(lastlink); 1414 else 1415 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1416 lastp = p; 1417 lastlink = p->physaddr; 1418 p->td.td_status = LE(status); 1419 if (i == ntd) { 1420 /* last TD */ 1421 l = len % maxp; 1422 if (l == 0) l = maxp; 1423 *ep = p; 1424 } else 1425 l = maxp; 1426 p->td.td_token = 1427 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1428 UHCI_TD_OUT(l, endpt, addr, tog)); 1429 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1430 tog ^= 1; 1431 } 1432 *sp = lastp; 1433 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1434 upipe->nexttoggle)); 1435 return (USBD_NORMAL_COMPLETION); 1436 } 1437 1438 void 1439 uhci_device_clear_toggle(pipe) 1440 usbd_pipe_handle pipe; 1441 { 1442 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1443 upipe->nexttoggle = 0; 1444 } 1445 1446 void 1447 uhci_noop(pipe) 1448 usbd_pipe_handle pipe; 1449 { 1450 } 1451 1452 usbd_status 1453 uhci_device_bulk_transfer(xfer) 1454 usbd_xfer_handle xfer; 1455 { 1456 usbd_status err; 1457 1458 /* Insert last in queue. */ 1459 err = usb_insert_transfer(xfer); 1460 if (err) 1461 return (err); 1462 1463 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1464 * start first 1465 */ 1466 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1467 } 1468 1469 usbd_status 1470 uhci_device_bulk_start(xfer) 1471 usbd_xfer_handle xfer; 1472 { 1473 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1474 usbd_device_handle dev = upipe->pipe.device; 1475 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1476 uhci_intr_info_t *ii = upipe->iinfo; 1477 uhci_soft_td_t *data, *dataend; 1478 uhci_soft_qh_t *sqh; 1479 usbd_status err; 1480 int len, isread, endpt; 1481 int s; 1482 1483 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1484 xfer, xfer->length, xfer->flags)); 1485 1486 #ifdef DIAGNOSTIC 1487 if (xfer->rqflags & URQ_REQUEST) 1488 panic("uhci_device_bulk_transfer: a request\n"); 1489 #endif 1490 1491 len = xfer->length; 1492 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1493 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1494 sqh = upipe->u.bulk.sqh; 1495 1496 upipe->u.bulk.isread = isread; 1497 upipe->u.bulk.length = len; 1498 1499 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1500 xfer->flags & USBD_SHORT_XFER_OK, 1501 &xfer->dmabuf, &data, &dataend); 1502 if (err) 1503 return (err); 1504 dataend->td.td_status |= LE(UHCI_TD_IOC); 1505 1506 #ifdef UHCI_DEBUG 1507 if (uhcidebug > 8) { 1508 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1509 uhci_dump_tds(data); 1510 } 1511 #endif 1512 1513 /* Set up interrupt info. */ 1514 ii->xfer = xfer; 1515 ii->stdstart = data; 1516 ii->stdend = dataend; 1517 #if defined(__FreeBSD__) 1518 callout_handle_init(&ii->timeout_handle); 1519 #endif 1520 #ifdef DIAGNOSTIC 1521 if (!ii->isdone) { 1522 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1523 } 1524 ii->isdone = 0; 1525 #endif 1526 1527 sqh->elink = data; 1528 sqh->qh.qh_elink = LE(data->physaddr); 1529 sqh->intr_info = ii; 1530 1531 s = splusb(); 1532 uhci_add_bulk(sc, sqh); 1533 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1534 1535 if (xfer->timeout && !sc->sc_bus.use_polling) { 1536 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1537 ii->timeout_handle); 1538 } 1539 splx(s); 1540 1541 #ifdef UHCI_DEBUG 1542 if (uhcidebug > 10) { 1543 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1544 uhci_dump_tds(data); 1545 } 1546 #endif 1547 1548 if (sc->sc_bus.use_polling) 1549 uhci_waitintr(sc, xfer); 1550 1551 return (USBD_IN_PROGRESS); 1552 } 1553 1554 /* Abort a device bulk request. */ 1555 void 1556 uhci_device_bulk_abort(xfer) 1557 usbd_xfer_handle xfer; 1558 { 1559 DPRINTF(("uhci_device_bulk_abort:\n")); 1560 uhci_abort_xfer(xfer, USBD_CANCELLED); 1561 } 1562 1563 void 1564 uhci_abort_xfer(xfer, status) 1565 usbd_xfer_handle xfer; 1566 usbd_status status; 1567 { 1568 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1569 uhci_intr_info_t *ii = upipe->iinfo; 1570 uhci_soft_td_t *std; 1571 1572 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1573 1574 /* Make interrupt routine ignore it, */ 1575 xfer->status = status; 1576 1577 /* don't timeout, */ 1578 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1579 1580 /* make hardware ignore it, */ 1581 for (std = ii->stdstart; std != 0; std = std->link.std) 1582 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1583 1584 xfer->hcpriv = ii; 1585 1586 /* make sure hardware has completed, */ 1587 if (xfer->device->bus->intr_context) { 1588 /* We have no process context, so we can't use tsleep(). */ 1589 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1590 } else { 1591 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1592 KASSERT(intr_nesting_level == 0, 1593 ("ohci_abort_req in interrupt context")); 1594 #endif 1595 usb_delay_ms(xfer->pipe->device->bus, 1); 1596 /* and call final part of interrupt handler. */ 1597 uhci_abort_xfer_end(xfer); 1598 } 1599 } 1600 1601 void 1602 uhci_abort_xfer_end(v) 1603 void *v; 1604 { 1605 usbd_xfer_handle xfer = v; 1606 int s; 1607 1608 s = splusb(); 1609 usb_transfer_complete(xfer); 1610 splx(s); 1611 } 1612 1613 /* Close a device bulk pipe. */ 1614 void 1615 uhci_device_bulk_close(pipe) 1616 usbd_pipe_handle pipe; 1617 { 1618 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1619 usbd_device_handle dev = upipe->pipe.device; 1620 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1621 1622 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1623 uhci_free_intr_info(upipe->iinfo); 1624 /* XXX free other resources */ 1625 } 1626 1627 usbd_status 1628 uhci_device_ctrl_transfer(xfer) 1629 usbd_xfer_handle xfer; 1630 { 1631 usbd_status err; 1632 1633 /* Insert last in queue. */ 1634 err = usb_insert_transfer(xfer); 1635 if (err) 1636 return (err); 1637 1638 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1639 * start first 1640 */ 1641 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1642 } 1643 1644 usbd_status 1645 uhci_device_ctrl_start(xfer) 1646 usbd_xfer_handle xfer; 1647 { 1648 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1649 usbd_status err; 1650 1651 #ifdef DIAGNOSTIC 1652 if (!(xfer->rqflags & URQ_REQUEST)) 1653 panic("uhci_device_ctrl_transfer: not a request\n"); 1654 #endif 1655 1656 err = uhci_device_request(xfer); 1657 if (err) 1658 return (err); 1659 1660 if (sc->sc_bus.use_polling) 1661 uhci_waitintr(sc, xfer); 1662 return (USBD_IN_PROGRESS); 1663 } 1664 1665 usbd_status 1666 uhci_device_intr_transfer(xfer) 1667 usbd_xfer_handle xfer; 1668 { 1669 usbd_status err; 1670 1671 /* Insert last in queue. */ 1672 err = usb_insert_transfer(xfer); 1673 if (err) 1674 return (err); 1675 1676 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1677 * start first 1678 */ 1679 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1680 } 1681 1682 usbd_status 1683 uhci_device_intr_start(xfer) 1684 usbd_xfer_handle xfer; 1685 { 1686 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1687 usbd_device_handle dev = upipe->pipe.device; 1688 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1689 uhci_intr_info_t *ii = upipe->iinfo; 1690 uhci_soft_td_t *data, *dataend; 1691 uhci_soft_qh_t *sqh; 1692 usbd_status err; 1693 int i, s; 1694 1695 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1696 xfer, xfer->length, xfer->flags)); 1697 1698 #ifdef DIAGNOSTIC 1699 if (xfer->rqflags & URQ_REQUEST) 1700 panic("uhci_device_intr_transfer: a request\n"); 1701 #endif 1702 1703 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1704 xfer->flags & USBD_SHORT_XFER_OK, 1705 &xfer->dmabuf, &data, &dataend); 1706 if (err) 1707 return (err); 1708 dataend->td.td_status |= LE(UHCI_TD_IOC); 1709 1710 #ifdef UHCI_DEBUG 1711 if (uhcidebug > 10) { 1712 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1713 uhci_dump_tds(data); 1714 uhci_dump_qh(upipe->u.intr.qhs[0]); 1715 } 1716 #endif 1717 1718 s = splusb(); 1719 /* Set up interrupt info. */ 1720 ii->xfer = xfer; 1721 ii->stdstart = data; 1722 ii->stdend = dataend; 1723 #if defined(__FreeBSD__) 1724 callout_handle_init(&ii->timeout_handle); 1725 #endif 1726 #ifdef DIAGNOSTIC 1727 if (!ii->isdone) { 1728 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1729 } 1730 ii->isdone = 0; 1731 #endif 1732 1733 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1734 upipe->u.intr.qhs[0])); 1735 for (i = 0; i < upipe->u.intr.npoll; i++) { 1736 sqh = upipe->u.intr.qhs[i]; 1737 sqh->elink = data; 1738 sqh->qh.qh_elink = LE(data->physaddr); 1739 } 1740 splx(s); 1741 1742 #ifdef UHCI_DEBUG 1743 if (uhcidebug > 10) { 1744 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1745 uhci_dump_tds(data); 1746 uhci_dump_qh(upipe->u.intr.qhs[0]); 1747 } 1748 #endif 1749 1750 return (USBD_IN_PROGRESS); 1751 } 1752 1753 /* Abort a device control request. */ 1754 void 1755 uhci_device_ctrl_abort(xfer) 1756 usbd_xfer_handle xfer; 1757 { 1758 DPRINTF(("uhci_device_ctrl_abort:\n")); 1759 uhci_abort_xfer(xfer, USBD_CANCELLED); 1760 } 1761 1762 /* Close a device control pipe. */ 1763 void 1764 uhci_device_ctrl_close(pipe) 1765 usbd_pipe_handle pipe; 1766 { 1767 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1768 1769 uhci_free_intr_info(upipe->iinfo); 1770 /* XXX free other resources? */ 1771 } 1772 1773 /* Abort a device interrupt request. */ 1774 void 1775 uhci_device_intr_abort(xfer) 1776 usbd_xfer_handle xfer; 1777 { 1778 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1779 if (xfer->pipe->intrxfer == xfer) { 1780 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1781 xfer->pipe->intrxfer = 0; 1782 } 1783 uhci_abort_xfer(xfer, USBD_CANCELLED); 1784 } 1785 1786 /* Close a device interrupt pipe. */ 1787 void 1788 uhci_device_intr_close(pipe) 1789 usbd_pipe_handle pipe; 1790 { 1791 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1792 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1793 int i, s, npoll; 1794 1795 upipe->iinfo->stdstart = 0; /* inactive */ 1796 1797 /* Unlink descriptors from controller data structures. */ 1798 npoll = upipe->u.intr.npoll; 1799 uhci_lock_frames(sc); 1800 for (i = 0; i < npoll; i++) 1801 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1802 upipe->u.intr.qhs[i]); 1803 uhci_unlock_frames(sc); 1804 1805 /* 1806 * We now have to wait for any activity on the physical 1807 * descriptors to stop. 1808 */ 1809 usb_delay_ms(&sc->sc_bus, 2); 1810 1811 for(i = 0; i < npoll; i++) 1812 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1813 free(upipe->u.intr.qhs, M_USBHC); 1814 1815 s = splusb(); 1816 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1817 splx(s); 1818 uhci_free_intr_info(upipe->iinfo); 1819 1820 /* XXX free other resources */ 1821 } 1822 1823 usbd_status 1824 uhci_device_request(xfer) 1825 usbd_xfer_handle xfer; 1826 { 1827 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1828 usb_device_request_t *req = &xfer->request; 1829 usbd_device_handle dev = upipe->pipe.device; 1830 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1831 int addr = dev->address; 1832 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1833 uhci_intr_info_t *ii = upipe->iinfo; 1834 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1835 uhci_soft_qh_t *sqh; 1836 int len; 1837 u_int32_t ls; 1838 usbd_status err; 1839 int isread; 1840 int s; 1841 1842 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1843 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1844 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1845 UGETW(req->wIndex), UGETW(req->wLength), 1846 addr, endpt)); 1847 1848 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1849 isread = req->bmRequestType & UT_READ; 1850 len = UGETW(req->wLength); 1851 1852 setup = upipe->u.ctl.setup; 1853 stat = upipe->u.ctl.stat; 1854 sqh = upipe->u.ctl.sqh; 1855 1856 /* Set up data transaction */ 1857 if (len != 0) { 1858 upipe->nexttoggle = 1; 1859 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1860 xfer->flags & USBD_SHORT_XFER_OK, 1861 &xfer->dmabuf, &data, &dataend); 1862 if (err) 1863 return (err); 1864 next = data; 1865 dataend->link.std = stat; 1866 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1867 } else { 1868 next = stat; 1869 } 1870 upipe->u.ctl.length = len; 1871 1872 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1873 1874 setup->link.std = next; 1875 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1876 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1877 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1878 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1879 1880 stat->link.std = 0; 1881 stat->td.td_link = LE(UHCI_PTR_T); 1882 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1883 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1884 stat->td.td_token = 1885 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1886 UHCI_TD_IN (0, endpt, addr, 1)); 1887 stat->td.td_buffer = LE(0); 1888 1889 #ifdef UHCI_DEBUG 1890 if (uhcidebug > 10) { 1891 DPRINTF(("uhci_device_request: before transfer\n")); 1892 uhci_dump_tds(setup); 1893 } 1894 #endif 1895 1896 /* Set up interrupt info. */ 1897 ii->xfer = xfer; 1898 ii->stdstart = setup; 1899 ii->stdend = stat; 1900 #if defined(__FreeBSD__) 1901 callout_handle_init(&ii->timeout_handle); 1902 #endif 1903 #ifdef DIAGNOSTIC 1904 if (!ii->isdone) { 1905 printf("uhci_device_request: not done, ii=%p\n", ii); 1906 } 1907 ii->isdone = 0; 1908 #endif 1909 1910 sqh->elink = setup; 1911 sqh->qh.qh_elink = LE(setup->physaddr); 1912 sqh->intr_info = ii; 1913 1914 s = splusb(); 1915 uhci_add_ctrl(sc, sqh); 1916 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1917 #ifdef UHCI_DEBUG 1918 if (uhcidebug > 12) { 1919 uhci_soft_td_t *std; 1920 uhci_soft_qh_t *xqh; 1921 uhci_soft_qh_t *sxqh; 1922 int maxqh = 0; 1923 uhci_physaddr_t link; 1924 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1925 for (std = sc->sc_vframes[0].htd, link = 0; 1926 (link & UHCI_PTR_Q) == 0; 1927 std = std->link.std) { 1928 link = LE(std->td.td_link); 1929 uhci_dump_td(std); 1930 } 1931 sxqh = (uhci_soft_qh_t *)std; 1932 uhci_dump_qh(sxqh); 1933 for (xqh = sxqh; 1934 xqh != NULL; 1935 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1936 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1937 uhci_dump_qh(xqh); 1938 } 1939 DPRINTF(("Enqueued QH:\n")); 1940 uhci_dump_qh(sqh); 1941 uhci_dump_tds(sqh->elink); 1942 } 1943 #endif 1944 if (xfer->timeout && !sc->sc_bus.use_polling) { 1945 usb_timeout(uhci_timeout, ii, 1946 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1947 } 1948 splx(s); 1949 1950 return (USBD_NORMAL_COMPLETION); 1951 } 1952 1953 usbd_status 1954 uhci_device_isoc_transfer(xfer) 1955 usbd_xfer_handle xfer; 1956 { 1957 usbd_status err; 1958 1959 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1960 1961 /* Put it on our queue, */ 1962 err = usb_insert_transfer(xfer); 1963 1964 /* bail out on error, */ 1965 if (err && err != USBD_IN_PROGRESS) 1966 return (err); 1967 1968 /* XXX should check inuse here */ 1969 1970 /* insert into schedule, */ 1971 uhci_device_isoc_enter(xfer); 1972 1973 /* and put on interrupt list if the pipe wasn't running */ 1974 if (!err) 1975 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1976 1977 return (err); 1978 } 1979 1980 void 1981 uhci_device_isoc_enter(xfer) 1982 usbd_xfer_handle xfer; 1983 { 1984 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1985 usbd_device_handle dev = upipe->pipe.device; 1986 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1987 struct iso *iso = &upipe->u.iso; 1988 uhci_soft_td_t *std; 1989 u_int32_t buf, len, status; 1990 int s, i, next, nframes; 1991 1992 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1993 "nframes=%d\n", 1994 iso->inuse, iso->next, xfer, xfer->nframes)); 1995 1996 if (xfer->status == USBD_IN_PROGRESS) { 1997 /* This request has already been entered into the frame list */ 1998 /* XXX */ 1999 } 2000 2001 #ifdef DIAGNOSTIC 2002 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2003 printf("uhci_device_isoc_enter: overflow!\n"); 2004 #endif 2005 2006 next = iso->next; 2007 if (next == -1) { 2008 /* Not in use yet, schedule it a few frames ahead. */ 2009 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2010 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2011 } 2012 2013 xfer->status = USBD_IN_PROGRESS; 2014 xfer->hcprivint = next; 2015 2016 buf = DMAADDR(&xfer->dmabuf); 2017 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2018 UHCI_TD_ACTIVE | 2019 UHCI_TD_IOS)); 2020 nframes = xfer->nframes; 2021 s = splusb(); 2022 for (i = 0; i < nframes; i++) { 2023 std = iso->stds[next]; 2024 if (++next >= UHCI_VFRAMELIST_COUNT) 2025 next = 0; 2026 len = xfer->frlengths[i]; 2027 std->td.td_buffer = LE(buf); 2028 if (i == nframes - 1) 2029 status |= LE(UHCI_TD_IOC); 2030 std->td.td_status = status; 2031 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2032 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2033 #ifdef UHCI_DEBUG 2034 if (uhcidebug > 5) { 2035 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2036 uhci_dump_td(std); 2037 } 2038 #endif 2039 buf += len; 2040 } 2041 iso->next = next; 2042 iso->inuse += xfer->nframes; 2043 2044 splx(s); 2045 } 2046 2047 usbd_status 2048 uhci_device_isoc_start(xfer) 2049 usbd_xfer_handle xfer; 2050 { 2051 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2052 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2053 uhci_intr_info_t *ii = upipe->iinfo; 2054 uhci_soft_td_t *end; 2055 int s, i; 2056 2057 #ifdef DIAGNOSTIC 2058 if (xfer->status != USBD_IN_PROGRESS) 2059 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2060 #endif 2061 2062 /* Find the last TD */ 2063 i = xfer->hcprivint + xfer->nframes; 2064 if (i >= UHCI_VFRAMELIST_COUNT) 2065 i -= UHCI_VFRAMELIST_COUNT; 2066 end = upipe->u.iso.stds[i]; 2067 2068 s = splusb(); 2069 2070 /* Set up interrupt info. */ 2071 ii->xfer = xfer; 2072 ii->stdstart = end; 2073 ii->stdend = end; 2074 #if defined(__FreeBSD__) 2075 callout_handle_init(&ii->timeout_handle); 2076 #endif 2077 #ifdef DIAGNOSTIC 2078 if (!ii->isdone) { 2079 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2080 } 2081 ii->isdone = 0; 2082 #endif 2083 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2084 2085 splx(s); 2086 2087 return (USBD_IN_PROGRESS); 2088 } 2089 2090 void 2091 uhci_device_isoc_abort(xfer) 2092 usbd_xfer_handle xfer; 2093 { 2094 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2095 uhci_intr_info_t *ii = upipe->iinfo; 2096 uhci_soft_td_t **stds = upipe->u.iso.stds; 2097 uhci_soft_td_t *std; 2098 int i, n, nframes; 2099 2100 /* Make interrupt routine ignore it, */ 2101 xfer->status = USBD_CANCELLED; 2102 2103 /* make hardware ignore it, */ 2104 nframes = xfer->nframes; 2105 n = xfer->hcprivint; 2106 for (i = 0; i < nframes; i++) { 2107 std = stds[n]; 2108 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2109 if (++n >= UHCI_VFRAMELIST_COUNT) 2110 n = 0; 2111 } 2112 2113 xfer->hcpriv = ii; 2114 2115 /* make sure hardware has completed, */ 2116 if (xfer->device->bus->intr_context) { 2117 /* We have no process context, so we can't use tsleep(). */ 2118 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2119 } else { 2120 usb_delay_ms(xfer->pipe->device->bus, 1); 2121 /* and call final part of interrupt handler. */ 2122 uhci_abort_xfer_end(xfer); 2123 } 2124 } 2125 2126 void 2127 uhci_device_isoc_close(pipe) 2128 usbd_pipe_handle pipe; 2129 { 2130 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2131 usbd_device_handle dev = upipe->pipe.device; 2132 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2133 uhci_soft_td_t *std, *vstd; 2134 struct iso *iso; 2135 int i; 2136 2137 /* 2138 * Make sure all TDs are marked as inactive. 2139 * Wait for completion. 2140 * Unschedule. 2141 * Deallocate. 2142 */ 2143 iso = &upipe->u.iso; 2144 2145 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2146 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2147 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2148 2149 uhci_lock_frames(sc); 2150 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2151 std = iso->stds[i]; 2152 for (vstd = sc->sc_vframes[i].htd; 2153 vstd != NULL && vstd->link.std != std; 2154 vstd = vstd->link.std) 2155 ; 2156 if (vstd == NULL) { 2157 /*panic*/ 2158 printf("uhci_device_isoc_close: %p not found\n", std); 2159 uhci_unlock_frames(sc); 2160 return; 2161 } 2162 vstd->link = std->link; 2163 vstd->td.td_link = std->td.td_link; 2164 uhci_free_std(sc, std); 2165 } 2166 uhci_unlock_frames(sc); 2167 2168 free(iso->stds, M_USBHC); 2169 } 2170 2171 usbd_status 2172 uhci_setup_isoc(pipe) 2173 usbd_pipe_handle pipe; 2174 { 2175 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2176 usbd_device_handle dev = upipe->pipe.device; 2177 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2178 int addr = upipe->pipe.device->address; 2179 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2180 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2181 uhci_soft_td_t *std, *vstd; 2182 u_int32_t token; 2183 struct iso *iso; 2184 int i; 2185 2186 iso = &upipe->u.iso; 2187 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2188 M_USBHC, M_WAITOK); 2189 2190 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2191 UHCI_TD_OUT(0, endpt, addr, 0)); 2192 2193 /* Allocate the TDs and mark as inactive; */ 2194 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2195 std = uhci_alloc_std(sc); 2196 if (std == 0) 2197 goto bad; 2198 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2199 std->td.td_token = token; 2200 iso->stds[i] = std; 2201 } 2202 2203 /* Insert TDs into schedule. */ 2204 uhci_lock_frames(sc); 2205 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2206 std = iso->stds[i]; 2207 vstd = sc->sc_vframes[i].htd; 2208 std->link = vstd->link; 2209 std->td.td_link = vstd->td.td_link; 2210 vstd->link.std = std; 2211 vstd->td.td_link = LE(std->physaddr); 2212 } 2213 uhci_unlock_frames(sc); 2214 2215 iso->next = -1; 2216 iso->inuse = 0; 2217 2218 return (USBD_NORMAL_COMPLETION); 2219 2220 bad: 2221 while (--i >= 0) 2222 uhci_free_std(sc, iso->stds[i]); 2223 free(iso->stds, M_USBHC); 2224 return (USBD_NOMEM); 2225 } 2226 2227 void 2228 uhci_device_isoc_done(xfer) 2229 usbd_xfer_handle xfer; 2230 { 2231 uhci_intr_info_t *ii = xfer->hcpriv; 2232 2233 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2234 2235 /* Turn off the interrupt since it is active even if the TD is not. */ 2236 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2237 2238 LIST_REMOVE(ii, list); /* remove from active list */ 2239 } 2240 2241 void 2242 uhci_device_intr_done(xfer) 2243 usbd_xfer_handle xfer; 2244 { 2245 uhci_intr_info_t *ii = xfer->hcpriv; 2246 uhci_softc_t *sc = ii->sc; 2247 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2248 uhci_soft_qh_t *sqh; 2249 int i, npoll; 2250 2251 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2252 2253 npoll = upipe->u.intr.npoll; 2254 for(i = 0; i < npoll; i++) { 2255 sqh = upipe->u.intr.qhs[i]; 2256 sqh->elink = 0; 2257 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2258 } 2259 uhci_free_std_chain(sc, ii->stdstart, 0); 2260 2261 /* XXX Wasteful. */ 2262 if (xfer->pipe->repeat) { 2263 uhci_soft_td_t *data, *dataend; 2264 2265 /* This alloc cannot fail since we freed the chain above. */ 2266 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2267 xfer->flags & USBD_SHORT_XFER_OK, 2268 &xfer->dmabuf, &data, &dataend); 2269 dataend->td.td_status |= LE(UHCI_TD_IOC); 2270 2271 #ifdef UHCI_DEBUG 2272 if (uhcidebug > 10) { 2273 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2274 uhci_dump_tds(data); 2275 uhci_dump_qh(upipe->u.intr.qhs[0]); 2276 } 2277 #endif 2278 2279 ii->stdstart = data; 2280 ii->stdend = dataend; 2281 #if defined(__FreeBSD__) 2282 callout_handle_init(&ii->timeout_handle); 2283 #endif 2284 #ifdef DIAGNOSTIC 2285 if (!ii->isdone) { 2286 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2287 } 2288 ii->isdone = 0; 2289 #endif 2290 for (i = 0; i < npoll; i++) { 2291 sqh = upipe->u.intr.qhs[i]; 2292 sqh->elink = data; 2293 sqh->qh.qh_elink = LE(data->physaddr); 2294 } 2295 } else { 2296 ii->stdstart = 0; /* mark as inactive */ 2297 } 2298 } 2299 2300 /* Deallocate request data structures */ 2301 void 2302 uhci_device_ctrl_done(xfer) 2303 usbd_xfer_handle xfer; 2304 { 2305 uhci_intr_info_t *ii = xfer->hcpriv; 2306 uhci_softc_t *sc = ii->sc; 2307 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2308 2309 #ifdef DIAGNOSTIC 2310 if (!(xfer->rqflags & URQ_REQUEST)) 2311 panic("uhci_ctrl_done: not a request\n"); 2312 #endif 2313 2314 LIST_REMOVE(ii, list); /* remove from active list */ 2315 2316 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2317 2318 if (upipe->u.ctl.length != 0) 2319 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2320 2321 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2322 } 2323 2324 /* Deallocate request data structures */ 2325 void 2326 uhci_device_bulk_done(xfer) 2327 usbd_xfer_handle xfer; 2328 { 2329 uhci_intr_info_t *ii = xfer->hcpriv; 2330 uhci_softc_t *sc = ii->sc; 2331 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2332 2333 LIST_REMOVE(ii, list); /* remove from active list */ 2334 2335 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2336 2337 uhci_free_std_chain(sc, ii->stdstart, 0); 2338 2339 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2340 } 2341 2342 /* Add interrupt QH, called with vflock. */ 2343 void 2344 uhci_add_intr(sc, n, sqh) 2345 uhci_softc_t *sc; 2346 int n; 2347 uhci_soft_qh_t *sqh; 2348 { 2349 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2350 uhci_soft_qh_t *eqh; 2351 2352 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2353 eqh = vf->eqh; 2354 sqh->hlink = eqh->hlink; 2355 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2356 eqh->hlink = sqh; 2357 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2358 vf->eqh = sqh; 2359 vf->bandwidth++; 2360 } 2361 2362 /* Remove interrupt QH, called with vflock. */ 2363 void 2364 uhci_remove_intr(sc, n, sqh) 2365 uhci_softc_t *sc; 2366 int n; 2367 uhci_soft_qh_t *sqh; 2368 { 2369 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2370 uhci_soft_qh_t *pqh; 2371 2372 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2373 2374 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2375 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2376 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2377 DPRINTF(("uhci_remove_intr: QH not found\n")); 2378 return; 2379 } 2380 #else 2381 ; 2382 #endif 2383 pqh->hlink = sqh->hlink; 2384 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2385 if (vf->eqh == sqh) 2386 vf->eqh = pqh; 2387 vf->bandwidth--; 2388 } 2389 2390 usbd_status 2391 uhci_device_setintr(sc, upipe, ival) 2392 uhci_softc_t *sc; 2393 struct uhci_pipe *upipe; 2394 int ival; 2395 { 2396 uhci_soft_qh_t *sqh; 2397 int i, npoll, s; 2398 u_int bestbw, bw, bestoffs, offs; 2399 2400 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2401 if (ival == 0) { 2402 printf("uhci_setintr: 0 interval\n"); 2403 return (USBD_INVAL); 2404 } 2405 2406 if (ival > UHCI_VFRAMELIST_COUNT) 2407 ival = UHCI_VFRAMELIST_COUNT; 2408 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2409 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2410 2411 upipe->u.intr.npoll = npoll; 2412 upipe->u.intr.qhs = 2413 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2414 2415 /* 2416 * Figure out which offset in the schedule that has most 2417 * bandwidth left over. 2418 */ 2419 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2420 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2421 for (bw = i = 0; i < npoll; i++) 2422 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2423 if (bw < bestbw) { 2424 bestbw = bw; 2425 bestoffs = offs; 2426 } 2427 } 2428 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2429 2430 upipe->iinfo->stdstart = 0; 2431 for(i = 0; i < npoll; i++) { 2432 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2433 sqh->elink = 0; 2434 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2435 sqh->pos = MOD(i * ival + bestoffs); 2436 sqh->intr_info = upipe->iinfo; 2437 } 2438 #undef MOD 2439 2440 s = splusb(); 2441 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2442 splx(s); 2443 2444 uhci_lock_frames(sc); 2445 /* Enter QHs into the controller data structures. */ 2446 for(i = 0; i < npoll; i++) 2447 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2448 upipe->u.intr.qhs[i]); 2449 uhci_unlock_frames(sc); 2450 2451 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2452 return (USBD_NORMAL_COMPLETION); 2453 } 2454 2455 /* Open a new pipe. */ 2456 usbd_status 2457 uhci_open(pipe) 2458 usbd_pipe_handle pipe; 2459 { 2460 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2461 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2462 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2463 usbd_status err; 2464 2465 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2466 pipe, pipe->device->address, 2467 ed->bEndpointAddress, sc->sc_addr)); 2468 if (pipe->device->address == sc->sc_addr) { 2469 switch (ed->bEndpointAddress) { 2470 case USB_CONTROL_ENDPOINT: 2471 pipe->methods = &uhci_root_ctrl_methods; 2472 break; 2473 case UE_DIR_IN | UHCI_INTR_ENDPT: 2474 pipe->methods = &uhci_root_intr_methods; 2475 break; 2476 default: 2477 return (USBD_INVAL); 2478 } 2479 } else { 2480 upipe->iinfo = uhci_alloc_intr_info(sc); 2481 if (upipe->iinfo == 0) 2482 return (USBD_NOMEM); 2483 switch (ed->bmAttributes & UE_XFERTYPE) { 2484 case UE_CONTROL: 2485 pipe->methods = &uhci_device_ctrl_methods; 2486 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2487 if (upipe->u.ctl.sqh == NULL) 2488 goto bad; 2489 upipe->u.ctl.setup = uhci_alloc_std(sc); 2490 if (upipe->u.ctl.setup == NULL) { 2491 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2492 goto bad; 2493 } 2494 upipe->u.ctl.stat = uhci_alloc_std(sc); 2495 if (upipe->u.ctl.stat == NULL) { 2496 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2497 uhci_free_std(sc, upipe->u.ctl.setup); 2498 goto bad; 2499 } 2500 err = usb_allocmem(&sc->sc_bus, 2501 sizeof(usb_device_request_t), 2502 0, &upipe->u.ctl.reqdma); 2503 if (err) { 2504 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2505 uhci_free_std(sc, upipe->u.ctl.setup); 2506 uhci_free_std(sc, upipe->u.ctl.stat); 2507 goto bad; 2508 } 2509 break; 2510 case UE_INTERRUPT: 2511 pipe->methods = &uhci_device_intr_methods; 2512 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2513 case UE_ISOCHRONOUS: 2514 pipe->methods = &uhci_device_isoc_methods; 2515 return (uhci_setup_isoc(pipe)); 2516 case UE_BULK: 2517 pipe->methods = &uhci_device_bulk_methods; 2518 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2519 if (upipe->u.bulk.sqh == NULL) 2520 goto bad; 2521 break; 2522 } 2523 } 2524 return (USBD_NORMAL_COMPLETION); 2525 2526 bad: 2527 uhci_free_intr_info(upipe->iinfo); 2528 return (USBD_NOMEM); 2529 } 2530 2531 /* 2532 * Data structures and routines to emulate the root hub. 2533 */ 2534 usb_device_descriptor_t uhci_devd = { 2535 USB_DEVICE_DESCRIPTOR_SIZE, 2536 UDESC_DEVICE, /* type */ 2537 {0x00, 0x01}, /* USB version */ 2538 UCLASS_HUB, /* class */ 2539 USUBCLASS_HUB, /* subclass */ 2540 0, /* protocol */ 2541 64, /* max packet */ 2542 {0},{0},{0x00,0x01}, /* device id */ 2543 1,2,0, /* string indicies */ 2544 1 /* # of configurations */ 2545 }; 2546 2547 usb_config_descriptor_t uhci_confd = { 2548 USB_CONFIG_DESCRIPTOR_SIZE, 2549 UDESC_CONFIG, 2550 {USB_CONFIG_DESCRIPTOR_SIZE + 2551 USB_INTERFACE_DESCRIPTOR_SIZE + 2552 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2553 1, 2554 1, 2555 0, 2556 UC_SELF_POWERED, 2557 0 /* max power */ 2558 }; 2559 2560 usb_interface_descriptor_t uhci_ifcd = { 2561 USB_INTERFACE_DESCRIPTOR_SIZE, 2562 UDESC_INTERFACE, 2563 0, 2564 0, 2565 1, 2566 UCLASS_HUB, 2567 USUBCLASS_HUB, 2568 0, 2569 0 2570 }; 2571 2572 usb_endpoint_descriptor_t uhci_endpd = { 2573 USB_ENDPOINT_DESCRIPTOR_SIZE, 2574 UDESC_ENDPOINT, 2575 UE_DIR_IN | UHCI_INTR_ENDPT, 2576 UE_INTERRUPT, 2577 {8}, 2578 255 2579 }; 2580 2581 usb_hub_descriptor_t uhci_hubd_piix = { 2582 USB_HUB_DESCRIPTOR_SIZE, 2583 UDESC_HUB, 2584 2, 2585 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2586 50, /* power on to power good */ 2587 0, 2588 { 0x00 }, /* both ports are removable */ 2589 }; 2590 2591 int 2592 uhci_str(p, l, s) 2593 usb_string_descriptor_t *p; 2594 int l; 2595 char *s; 2596 { 2597 int i; 2598 2599 if (l == 0) 2600 return (0); 2601 p->bLength = 2 * strlen(s) + 2; 2602 if (l == 1) 2603 return (1); 2604 p->bDescriptorType = UDESC_STRING; 2605 l -= 2; 2606 for (i = 0; s[i] && l > 1; i++, l -= 2) 2607 USETW2(p->bString[i], 0, s[i]); 2608 return (2*i+2); 2609 } 2610 2611 /* 2612 * Simulate a hardware hub by handling all the necessary requests. 2613 */ 2614 usbd_status 2615 uhci_root_ctrl_transfer(xfer) 2616 usbd_xfer_handle xfer; 2617 { 2618 usbd_status err; 2619 2620 /* Insert last in queue. */ 2621 err = usb_insert_transfer(xfer); 2622 if (err) 2623 return (err); 2624 2625 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2626 * start first 2627 */ 2628 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2629 } 2630 2631 usbd_status 2632 uhci_root_ctrl_start(xfer) 2633 usbd_xfer_handle xfer; 2634 { 2635 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2636 usb_device_request_t *req; 2637 void *buf = NULL; 2638 int port, x; 2639 int s, len, value, index, status, change, l, totlen = 0; 2640 usb_port_status_t ps; 2641 usbd_status err; 2642 2643 #ifdef DIAGNOSTIC 2644 if (!(xfer->rqflags & URQ_REQUEST)) 2645 panic("uhci_root_ctrl_transfer: not a request\n"); 2646 #endif 2647 req = &xfer->request; 2648 2649 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2650 req->bmRequestType, req->bRequest)); 2651 2652 len = UGETW(req->wLength); 2653 value = UGETW(req->wValue); 2654 index = UGETW(req->wIndex); 2655 2656 if (len != 0) 2657 buf = KERNADDR(&xfer->dmabuf); 2658 2659 #define C(x,y) ((x) | ((y) << 8)) 2660 switch(C(req->bRequest, req->bmRequestType)) { 2661 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2662 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2663 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2664 /* 2665 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2666 * for the integrated root hub. 2667 */ 2668 break; 2669 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2670 if (len > 0) { 2671 *(u_int8_t *)buf = sc->sc_conf; 2672 totlen = 1; 2673 } 2674 break; 2675 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2676 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2677 switch(value >> 8) { 2678 case UDESC_DEVICE: 2679 if ((value & 0xff) != 0) { 2680 err = USBD_IOERROR; 2681 goto ret; 2682 } 2683 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2684 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2685 memcpy(buf, &uhci_devd, l); 2686 break; 2687 case UDESC_CONFIG: 2688 if ((value & 0xff) != 0) { 2689 err = USBD_IOERROR; 2690 goto ret; 2691 } 2692 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2693 memcpy(buf, &uhci_confd, l); 2694 buf = (char *)buf + l; 2695 len -= l; 2696 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2697 totlen += l; 2698 memcpy(buf, &uhci_ifcd, l); 2699 buf = (char *)buf + l; 2700 len -= l; 2701 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2702 totlen += l; 2703 memcpy(buf, &uhci_endpd, l); 2704 break; 2705 case UDESC_STRING: 2706 if (len == 0) 2707 break; 2708 *(u_int8_t *)buf = 0; 2709 totlen = 1; 2710 switch (value & 0xff) { 2711 case 1: /* Vendor */ 2712 totlen = uhci_str(buf, len, sc->sc_vendor); 2713 break; 2714 case 2: /* Product */ 2715 totlen = uhci_str(buf, len, "UHCI root hub"); 2716 break; 2717 } 2718 break; 2719 default: 2720 err = USBD_IOERROR; 2721 goto ret; 2722 } 2723 break; 2724 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2725 if (len > 0) { 2726 *(u_int8_t *)buf = 0; 2727 totlen = 1; 2728 } 2729 break; 2730 case C(UR_GET_STATUS, UT_READ_DEVICE): 2731 if (len > 1) { 2732 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2733 totlen = 2; 2734 } 2735 break; 2736 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2737 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2738 if (len > 1) { 2739 USETW(((usb_status_t *)buf)->wStatus, 0); 2740 totlen = 2; 2741 } 2742 break; 2743 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2744 if (value >= USB_MAX_DEVICES) { 2745 err = USBD_IOERROR; 2746 goto ret; 2747 } 2748 sc->sc_addr = value; 2749 break; 2750 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2751 if (value != 0 && value != 1) { 2752 err = USBD_IOERROR; 2753 goto ret; 2754 } 2755 sc->sc_conf = value; 2756 break; 2757 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2758 break; 2759 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2760 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2761 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2762 err = USBD_IOERROR; 2763 goto ret; 2764 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2765 break; 2766 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2767 break; 2768 /* Hub requests */ 2769 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2770 break; 2771 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2772 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2773 "port=%d feature=%d\n", 2774 index, value)); 2775 if (index == 1) 2776 port = UHCI_PORTSC1; 2777 else if (index == 2) 2778 port = UHCI_PORTSC2; 2779 else { 2780 err = USBD_IOERROR; 2781 goto ret; 2782 } 2783 switch(value) { 2784 case UHF_PORT_ENABLE: 2785 x = UREAD2(sc, port); 2786 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2787 break; 2788 case UHF_PORT_SUSPEND: 2789 x = UREAD2(sc, port); 2790 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2791 break; 2792 case UHF_PORT_RESET: 2793 x = UREAD2(sc, port); 2794 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2795 break; 2796 case UHF_C_PORT_CONNECTION: 2797 x = UREAD2(sc, port); 2798 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2799 break; 2800 case UHF_C_PORT_ENABLE: 2801 x = UREAD2(sc, port); 2802 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2803 break; 2804 case UHF_C_PORT_OVER_CURRENT: 2805 x = UREAD2(sc, port); 2806 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2807 break; 2808 case UHF_C_PORT_RESET: 2809 sc->sc_isreset = 0; 2810 err = USBD_NORMAL_COMPLETION; 2811 goto ret; 2812 case UHF_PORT_CONNECTION: 2813 case UHF_PORT_OVER_CURRENT: 2814 case UHF_PORT_POWER: 2815 case UHF_PORT_LOW_SPEED: 2816 case UHF_C_PORT_SUSPEND: 2817 default: 2818 err = USBD_IOERROR; 2819 goto ret; 2820 } 2821 break; 2822 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2823 if (index == 1) 2824 port = UHCI_PORTSC1; 2825 else if (index == 2) 2826 port = UHCI_PORTSC2; 2827 else { 2828 err = USBD_IOERROR; 2829 goto ret; 2830 } 2831 if (len > 0) { 2832 *(u_int8_t *)buf = 2833 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2834 UHCI_PORTSC_LS_SHIFT; 2835 totlen = 1; 2836 } 2837 break; 2838 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2839 if (value != 0) { 2840 err = USBD_IOERROR; 2841 goto ret; 2842 } 2843 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2844 totlen = l; 2845 memcpy(buf, &uhci_hubd_piix, l); 2846 break; 2847 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2848 if (len != 4) { 2849 err = USBD_IOERROR; 2850 goto ret; 2851 } 2852 memset(buf, 0, len); 2853 totlen = len; 2854 break; 2855 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2856 if (index == 1) 2857 port = UHCI_PORTSC1; 2858 else if (index == 2) 2859 port = UHCI_PORTSC2; 2860 else { 2861 err = USBD_IOERROR; 2862 goto ret; 2863 } 2864 if (len != 4) { 2865 err = USBD_IOERROR; 2866 goto ret; 2867 } 2868 x = UREAD2(sc, port); 2869 status = change = 0; 2870 if (x & UHCI_PORTSC_CCS ) 2871 status |= UPS_CURRENT_CONNECT_STATUS; 2872 if (x & UHCI_PORTSC_CSC ) 2873 change |= UPS_C_CONNECT_STATUS; 2874 if (x & UHCI_PORTSC_PE ) 2875 status |= UPS_PORT_ENABLED; 2876 if (x & UHCI_PORTSC_POEDC) 2877 change |= UPS_C_PORT_ENABLED; 2878 if (x & UHCI_PORTSC_OCI ) 2879 status |= UPS_OVERCURRENT_INDICATOR; 2880 if (x & UHCI_PORTSC_OCIC ) 2881 change |= UPS_C_OVERCURRENT_INDICATOR; 2882 if (x & UHCI_PORTSC_SUSP ) 2883 status |= UPS_SUSPEND; 2884 if (x & UHCI_PORTSC_LSDA ) 2885 status |= UPS_LOW_SPEED; 2886 status |= UPS_PORT_POWER; 2887 if (sc->sc_isreset) 2888 change |= UPS_C_PORT_RESET; 2889 USETW(ps.wPortStatus, status); 2890 USETW(ps.wPortChange, change); 2891 l = min(len, sizeof ps); 2892 memcpy(buf, &ps, l); 2893 totlen = l; 2894 break; 2895 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2896 err = USBD_IOERROR; 2897 goto ret; 2898 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2899 break; 2900 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2901 if (index == 1) 2902 port = UHCI_PORTSC1; 2903 else if (index == 2) 2904 port = UHCI_PORTSC2; 2905 else { 2906 err = USBD_IOERROR; 2907 goto ret; 2908 } 2909 switch(value) { 2910 case UHF_PORT_ENABLE: 2911 x = UREAD2(sc, port); 2912 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2913 break; 2914 case UHF_PORT_SUSPEND: 2915 x = UREAD2(sc, port); 2916 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2917 break; 2918 case UHF_PORT_RESET: 2919 x = UREAD2(sc, port); 2920 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2921 usb_delay_ms(&sc->sc_bus, 10); 2922 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2923 delay(100); 2924 x = UREAD2(sc, port); 2925 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2926 delay(100); 2927 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2928 index, UREAD2(sc, port))); 2929 sc->sc_isreset = 1; 2930 break; 2931 case UHF_C_PORT_CONNECTION: 2932 case UHF_C_PORT_ENABLE: 2933 case UHF_C_PORT_OVER_CURRENT: 2934 case UHF_PORT_CONNECTION: 2935 case UHF_PORT_OVER_CURRENT: 2936 case UHF_PORT_POWER: 2937 case UHF_PORT_LOW_SPEED: 2938 case UHF_C_PORT_SUSPEND: 2939 case UHF_C_PORT_RESET: 2940 default: 2941 err = USBD_IOERROR; 2942 goto ret; 2943 } 2944 break; 2945 default: 2946 err = USBD_IOERROR; 2947 goto ret; 2948 } 2949 xfer->actlen = totlen; 2950 err = USBD_NORMAL_COMPLETION; 2951 ret: 2952 xfer->status = err; 2953 xfer->hcpriv = 0; 2954 s = splusb(); 2955 usb_transfer_complete(xfer); 2956 splx(s); 2957 return (USBD_IN_PROGRESS); 2958 } 2959 2960 /* Abort a root control request. */ 2961 void 2962 uhci_root_ctrl_abort(xfer) 2963 usbd_xfer_handle xfer; 2964 { 2965 /* Nothing to do, all transfers are synchronous. */ 2966 } 2967 2968 /* Close the root pipe. */ 2969 void 2970 uhci_root_ctrl_close(pipe) 2971 usbd_pipe_handle pipe; 2972 { 2973 DPRINTF(("uhci_root_ctrl_close\n")); 2974 } 2975 2976 /* Abort a root interrupt request. */ 2977 void 2978 uhci_root_intr_abort(xfer) 2979 usbd_xfer_handle xfer; 2980 { 2981 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2982 2983 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2984 sc->sc_has_timo = NULL; 2985 2986 if (xfer->pipe->intrxfer == xfer) { 2987 DPRINTF(("uhci_root_intr_abort: remove\n")); 2988 xfer->pipe->intrxfer = 0; 2989 } 2990 xfer->status = USBD_CANCELLED; 2991 usb_transfer_complete(xfer); 2992 } 2993 2994 usbd_status 2995 uhci_root_intr_transfer(xfer) 2996 usbd_xfer_handle xfer; 2997 { 2998 usbd_status err; 2999 3000 /* Insert last in queue. */ 3001 err = usb_insert_transfer(xfer); 3002 if (err) 3003 return (err); 3004 3005 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3006 * start first 3007 */ 3008 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3009 } 3010 3011 /* Start a transfer on the root interrupt pipe */ 3012 usbd_status 3013 uhci_root_intr_start(xfer) 3014 usbd_xfer_handle xfer; 3015 { 3016 usbd_pipe_handle pipe = xfer->pipe; 3017 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3018 3019 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3020 xfer, xfer->length, xfer->flags)); 3021 3022 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3023 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3024 sc->sc_has_timo = xfer; 3025 return (USBD_IN_PROGRESS); 3026 } 3027 3028 /* Close the root interrupt pipe. */ 3029 void 3030 uhci_root_intr_close(pipe) 3031 usbd_pipe_handle pipe; 3032 { 3033 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3034 3035 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3036 sc->sc_has_timo = NULL; 3037 DPRINTF(("uhci_root_intr_close\n")); 3038 } 3039