uhci.c revision 1.67
1 /* $NetBSD: uhci.c,v 1.67 1999/11/18 23:32:28 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 (at) 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 * Data sheets: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 46 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 47 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 48 * USB spec: http://www.usb.org/developers/data/usb11.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 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 192 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 193 194 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 195 u_int32_t)); 196 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 197 198 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 199 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 200 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 201 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 202 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 203 204 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 205 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 206 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 207 static void uhci_device_intr_close __P((usbd_pipe_handle)); 208 static void uhci_device_intr_done __P((usbd_xfer_handle)); 209 210 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 211 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 212 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 213 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 214 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 215 216 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 217 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 218 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 219 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 220 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 221 222 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 223 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 224 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 225 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 226 227 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 228 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 229 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 230 static void uhci_root_intr_close __P((usbd_pipe_handle)); 231 static void uhci_root_intr_done __P((usbd_xfer_handle)); 232 233 static usbd_status uhci_open __P((usbd_pipe_handle)); 234 static void uhci_poll __P((struct usbd_bus *)); 235 236 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 237 238 static void uhci_add_intr __P((uhci_softc_t *, int, 239 uhci_soft_qh_t *)); 240 static void uhci_remove_intr __P((uhci_softc_t *, int, 241 uhci_soft_qh_t *)); 242 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 243 struct uhci_pipe *pipe, int ival)); 244 245 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 246 static void uhci_noop __P((usbd_pipe_handle pipe)); 247 248 #ifdef UHCI_DEBUG 249 static void uhci_dumpregs __P((uhci_softc_t *)); 250 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 251 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 252 static void uhci_dump_tds __P((uhci_soft_td_t *)); 253 static void uhci_dump_td __P((uhci_soft_td_t *)); 254 #endif 255 256 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 257 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 258 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 259 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 260 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 261 262 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 263 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 264 265 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 266 267 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 268 269 #define UHCI_INTR_ENDPT 1 270 271 struct usbd_bus_methods uhci_bus_methods = { 272 uhci_open, 273 uhci_poll, 274 uhci_allocm, 275 uhci_freem, 276 }; 277 278 struct usbd_pipe_methods uhci_root_ctrl_methods = { 279 uhci_root_ctrl_transfer, 280 uhci_root_ctrl_start, 281 uhci_root_ctrl_abort, 282 uhci_root_ctrl_close, 283 uhci_noop, 284 0, 285 }; 286 287 struct usbd_pipe_methods uhci_root_intr_methods = { 288 uhci_root_intr_transfer, 289 uhci_root_intr_start, 290 uhci_root_intr_abort, 291 uhci_root_intr_close, 292 uhci_noop, 293 uhci_root_intr_done, 294 }; 295 296 struct usbd_pipe_methods uhci_device_ctrl_methods = { 297 uhci_device_ctrl_transfer, 298 uhci_device_ctrl_start, 299 uhci_device_ctrl_abort, 300 uhci_device_ctrl_close, 301 uhci_noop, 302 uhci_device_ctrl_done, 303 }; 304 305 struct usbd_pipe_methods uhci_device_intr_methods = { 306 uhci_device_intr_transfer, 307 uhci_device_intr_start, 308 uhci_device_intr_abort, 309 uhci_device_intr_close, 310 uhci_device_clear_toggle, 311 uhci_device_intr_done, 312 }; 313 314 struct usbd_pipe_methods uhci_device_bulk_methods = { 315 uhci_device_bulk_transfer, 316 uhci_device_bulk_start, 317 uhci_device_bulk_abort, 318 uhci_device_bulk_close, 319 uhci_device_clear_toggle, 320 uhci_device_bulk_done, 321 }; 322 323 struct usbd_pipe_methods uhci_device_isoc_methods = { 324 uhci_device_isoc_transfer, 325 uhci_device_isoc_start, 326 uhci_device_isoc_abort, 327 uhci_device_isoc_close, 328 uhci_noop, 329 uhci_device_isoc_done, 330 }; 331 332 void 333 uhci_busreset(sc) 334 uhci_softc_t *sc; 335 { 336 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 337 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 338 UHCICMD(sc, 0); /* do nothing */ 339 } 340 341 usbd_status 342 uhci_init(sc) 343 uhci_softc_t *sc; 344 { 345 usbd_status err; 346 int i, j; 347 uhci_soft_qh_t *csqh, *bsqh, *sqh; 348 uhci_soft_td_t *std; 349 350 DPRINTFN(1,("uhci_init: start\n")); 351 352 #ifdef UHCI_DEBUG 353 if (uhcidebug > 2) 354 uhci_dumpregs(sc); 355 #endif 356 357 uhci_run(sc, 0); /* stop the controller */ 358 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 359 360 uhci_busreset(sc); 361 362 /* Allocate and initialize real frame array. */ 363 err = usb_allocmem(&sc->sc_bus, 364 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 365 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 366 if (err) 367 return (err); 368 sc->sc_pframes = KERNADDR(&sc->sc_dma); 369 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 370 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 371 372 /* Allocate the dummy QH where bulk traffic will be queued. */ 373 bsqh = uhci_alloc_sqh(sc); 374 if (bsqh == NULL) 375 return (USBD_NOMEM); 376 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 377 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 378 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 379 380 /* Allocate the dummy QH where control traffic will be queued. */ 381 csqh = uhci_alloc_sqh(sc); 382 if (csqh == NULL) 383 return (USBD_NOMEM); 384 csqh->hlink = bsqh; 385 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 386 csqh->qh.qh_elink = LE(UHCI_PTR_T); 387 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 388 389 /* 390 * Make all (virtual) frame list pointers point to the interrupt 391 * queue heads and the interrupt queue heads at the control 392 * queue head and point the physical frame list to the virtual. 393 */ 394 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 395 std = uhci_alloc_std(sc); 396 sqh = uhci_alloc_sqh(sc); 397 if (std == NULL || sqh == NULL) 398 return (USBD_NOMEM); 399 std->link.sqh = sqh; 400 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 401 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 402 std->td.td_token = LE(0); 403 std->td.td_buffer = LE(0); 404 sqh->hlink = csqh; 405 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 406 sqh->elink = 0; 407 sqh->qh.qh_elink = LE(UHCI_PTR_T); 408 sc->sc_vframes[i].htd = std; 409 sc->sc_vframes[i].etd = std; 410 sc->sc_vframes[i].hqh = sqh; 411 sc->sc_vframes[i].eqh = sqh; 412 for (j = i; 413 j < UHCI_FRAMELIST_COUNT; 414 j += UHCI_VFRAMELIST_COUNT) 415 sc->sc_pframes[j] = LE(std->physaddr); 416 } 417 418 LIST_INIT(&sc->sc_intrhead); 419 420 /* Set up the bus struct. */ 421 sc->sc_bus.methods = &uhci_bus_methods; 422 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 423 424 sc->sc_suspend = PWR_RESUME; 425 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 426 427 DPRINTFN(1,("uhci_init: enabling\n")); 428 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 429 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 430 431 return (uhci_run(sc, 1)); /* and here we go... */ 432 } 433 434 #if defined(__NetBSD__) || defined(__OpenBSD__) 435 int 436 uhci_activate(self, act) 437 device_ptr_t self; 438 enum devact act; 439 { 440 struct uhci_softc *sc = (struct uhci_softc *)self; 441 int rv = 0; 442 443 switch (act) { 444 case DVACT_ACTIVATE: 445 return (EOPNOTSUPP); 446 break; 447 448 case DVACT_DEACTIVATE: 449 if (sc->sc_child != NULL) 450 rv = config_deactivate(sc->sc_child); 451 break; 452 } 453 return (rv); 454 } 455 456 int 457 uhci_detach(sc, flags) 458 struct uhci_softc *sc; 459 int flags; 460 { 461 int rv = 0; 462 463 if (sc->sc_child != NULL) 464 rv = config_detach(sc->sc_child, flags); 465 466 if (rv != 0) 467 return (rv); 468 469 powerhook_disestablish(sc->sc_powerhook); 470 /* free data structures XXX */ 471 472 return (rv); 473 } 474 #endif 475 476 usbd_status 477 uhci_allocm(bus, dma, size) 478 struct usbd_bus *bus; 479 usb_dma_t *dma; 480 u_int32_t size; 481 { 482 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 483 dma)); 484 } 485 486 void 487 uhci_freem(bus, dma) 488 struct usbd_bus *bus; 489 usb_dma_t *dma; 490 { 491 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 492 } 493 494 #if defined(__NetBSD__) 495 /* 496 * Handle suspend/resume. 497 * 498 * We need to switch to polling mode here, because this routine is 499 * called from an intterupt context. This is all right since we 500 * are almost suspended anyway. 501 */ 502 void 503 uhci_power(why, v) 504 int why; 505 void *v; 506 { 507 uhci_softc_t *sc = v; 508 int cmd; 509 int s; 510 511 s = splusb(); 512 cmd = UREAD2(sc, UHCI_CMD); 513 514 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 515 sc, why, sc->sc_suspend, cmd)); 516 517 if (why != PWR_RESUME) { 518 #ifdef UHCI_DEBUG 519 if (uhcidebug > 2) 520 uhci_dumpregs(sc); 521 #endif 522 if (sc->sc_has_timo) 523 usb_untimeout(uhci_timo, sc->sc_has_timo, 524 sc->sc_has_timo->timo_handle); 525 sc->sc_bus.use_polling++; 526 uhci_run(sc, 0); /* stop the controller */ 527 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 528 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 529 sc->sc_suspend = why; 530 sc->sc_bus.use_polling--; 531 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 532 } else { 533 /* 534 * XXX We should really do much more here in case the 535 * controller registers have been lost and BIOS has 536 * not restored them. 537 */ 538 #ifdef DIAGNOSTIC 539 if (sc->sc_suspend == PWR_RESUME) 540 printf("uhci_power: weird, resume without suspend.\n"); 541 #endif 542 sc->sc_bus.use_polling++; 543 sc->sc_suspend = why; 544 if (cmd & UHCI_CMD_RS) 545 uhci_run(sc, 0); /* in case BIOS has started it */ 546 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 547 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 548 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 549 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 550 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 551 uhci_run(sc, 1); /* and start traffic again */ 552 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 553 sc->sc_bus.use_polling--; 554 if (sc->sc_has_timo) 555 usb_timeout(uhci_timo, sc->sc_has_timo, 556 sc->sc_ival, sc->sc_has_timo->timo_handle); 557 #ifdef UHCI_DEBUG 558 if (uhcidebug > 2) 559 uhci_dumpregs(sc); 560 #endif 561 } 562 splx(s); 563 } 564 #endif /* defined(__NetBSD__) */ 565 566 #ifdef UHCI_DEBUG 567 static void 568 uhci_dumpregs(sc) 569 uhci_softc_t *sc; 570 { 571 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 572 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 573 USBDEVNAME(sc->sc_bus.bdev), 574 UREAD2(sc, UHCI_CMD), 575 UREAD2(sc, UHCI_STS), 576 UREAD2(sc, UHCI_INTR), 577 UREAD2(sc, UHCI_FRNUM), 578 UREAD4(sc, UHCI_FLBASEADDR), 579 UREAD1(sc, UHCI_SOF), 580 UREAD2(sc, UHCI_PORTSC1), 581 UREAD2(sc, UHCI_PORTSC2))); 582 } 583 584 void 585 uhci_dump_td(p) 586 uhci_soft_td_t *p; 587 { 588 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 589 "token=0x%08lx buffer=0x%08lx\n", 590 p, (long)p->physaddr, 591 (long)LE(p->td.td_link), 592 (long)LE(p->td.td_status), 593 (long)LE(p->td.td_token), 594 (long)LE(p->td.td_buffer))); 595 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 596 "D=%d,maxlen=%d\n", 597 (int)LE(p->td.td_link), 598 "\20\1T\2Q\3VF", 599 (int)LE(p->td.td_status), 600 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 601 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 602 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 603 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 604 UHCI_TD_GET_PID(LE(p->td.td_token)), 605 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 606 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 607 UHCI_TD_GET_DT(LE(p->td.td_token)), 608 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 609 } 610 611 void 612 uhci_dump_qh(sqh) 613 uhci_soft_qh_t *sqh; 614 { 615 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 616 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 617 } 618 619 620 #if 0 621 void 622 uhci_dump() 623 { 624 uhci_softc_t *sc = uhci; 625 626 uhci_dumpregs(sc); 627 printf("intrs=%d\n", sc->sc_bus.no_intrs); 628 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 629 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 630 } 631 #endif 632 633 634 void 635 uhci_dump_qhs(sqh) 636 uhci_soft_qh_t *sqh; 637 { 638 uhci_dump_qh(sqh); 639 640 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 641 * Traverses sideways first, then down. 642 * 643 * QH1 644 * QH2 645 * No QH 646 * TD2.1 647 * TD2.2 648 * TD1.1 649 * etc. 650 * 651 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 652 */ 653 654 655 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 656 uhci_dump_qhs(sqh->hlink); 657 else 658 DPRINTF(("No QH\n")); 659 660 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 661 uhci_dump_tds(sqh->elink); 662 else 663 DPRINTF(("No TD\n")); 664 } 665 666 void 667 uhci_dump_tds(std) 668 uhci_soft_td_t *std; 669 { 670 uhci_soft_td_t *td; 671 672 for(td = std; td != NULL; td = td->link.std) { 673 uhci_dump_td(td); 674 675 /* Check whether the link pointer in this TD marks 676 * the link pointer as end of queue. This avoids 677 * printing the free list in case the queue/TD has 678 * already been moved there (seatbelt). 679 */ 680 if (td->td.td_link & UHCI_PTR_T || 681 td->td.td_link == 0) 682 break; 683 } 684 } 685 #endif 686 687 /* 688 * This routine is executed periodically and simulates interrupts 689 * from the root controller interrupt pipe for port status change. 690 */ 691 void 692 uhci_timo(addr) 693 void *addr; 694 { 695 usbd_xfer_handle xfer = addr; 696 usbd_pipe_handle pipe = xfer->pipe; 697 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 698 int s; 699 u_char *p; 700 701 DPRINTFN(20, ("uhci_timo\n")); 702 703 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 704 705 p = KERNADDR(&xfer->dmabuf); 706 p[0] = 0; 707 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 708 p[0] |= 1<<1; 709 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 710 p[0] |= 1<<2; 711 if (p[0] == 0) 712 /* No change, try again in a while */ 713 return; 714 715 xfer->actlen = 1; 716 xfer->status = USBD_NORMAL_COMPLETION; 717 s = splusb(); 718 xfer->hcpriv = 0; 719 xfer->device->bus->intr_context++; 720 usb_transfer_complete(xfer); 721 xfer->device->bus->intr_context--; 722 splx(s); 723 } 724 725 void 726 uhci_root_intr_done(xfer) 727 usbd_xfer_handle xfer; 728 { 729 } 730 731 732 void 733 uhci_lock_frames(sc) 734 uhci_softc_t *sc; 735 { 736 int s = splusb(); 737 738 while (sc->sc_vflock) { 739 sc->sc_vflock |= UHCI_WANT_LOCK; 740 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 741 } 742 sc->sc_vflock = UHCI_HAS_LOCK; 743 splx(s); 744 } 745 746 void 747 uhci_unlock_frames(sc) 748 uhci_softc_t *sc; 749 { 750 int s = splusb(); 751 752 sc->sc_vflock &= ~UHCI_HAS_LOCK; 753 if (sc->sc_vflock & UHCI_WANT_LOCK) 754 wakeup(&sc->sc_vflock); 755 splx(s); 756 } 757 758 /* 759 * Allocate an interrupt information struct. A free list is kept 760 * for fast allocation. 761 */ 762 uhci_intr_info_t * 763 uhci_alloc_intr_info(sc) 764 uhci_softc_t *sc; 765 { 766 uhci_intr_info_t *ii; 767 768 ii = LIST_FIRST(&uhci_ii_free); 769 if (ii) 770 LIST_REMOVE(ii, list); 771 else { 772 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 773 } 774 ii->sc = sc; 775 #if defined(__FreeBSD__) 776 callout_handle_init(&ii->timeout_handle); 777 #endif 778 779 return ii; 780 } 781 782 void 783 uhci_free_intr_info(ii) 784 uhci_intr_info_t *ii; 785 { 786 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 787 } 788 789 /* Add control QH, called at splusb(). */ 790 void 791 uhci_add_ctrl(sc, sqh) 792 uhci_softc_t *sc; 793 uhci_soft_qh_t *sqh; 794 { 795 uhci_soft_qh_t *eqh; 796 797 SPLUSBCHECK; 798 799 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 800 eqh = sc->sc_ctl_end; 801 sqh->hlink = eqh->hlink; 802 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 803 eqh->hlink = sqh; 804 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 805 sc->sc_ctl_end = sqh; 806 } 807 808 /* Remove control QH, called at splusb(). */ 809 void 810 uhci_remove_ctrl(sc, sqh) 811 uhci_softc_t *sc; 812 uhci_soft_qh_t *sqh; 813 { 814 uhci_soft_qh_t *pqh; 815 816 SPLUSBCHECK; 817 818 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 819 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 820 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 821 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 822 printf("uhci_remove_ctrl: QH not found\n"); 823 return; 824 } 825 #else 826 ; 827 #endif 828 pqh->hlink = sqh->hlink; 829 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 830 if (sc->sc_ctl_end == sqh) 831 sc->sc_ctl_end = pqh; 832 } 833 834 /* Add bulk QH, called at splusb(). */ 835 void 836 uhci_add_bulk(sc, sqh) 837 uhci_softc_t *sc; 838 uhci_soft_qh_t *sqh; 839 { 840 uhci_soft_qh_t *eqh; 841 842 SPLUSBCHECK; 843 844 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 845 eqh = sc->sc_bulk_end; 846 sqh->hlink = eqh->hlink; 847 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 848 eqh->hlink = sqh; 849 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 850 sc->sc_bulk_end = sqh; 851 } 852 853 /* Remove bulk QH, called at splusb(). */ 854 void 855 uhci_remove_bulk(sc, sqh) 856 uhci_softc_t *sc; 857 uhci_soft_qh_t *sqh; 858 { 859 uhci_soft_qh_t *pqh; 860 861 SPLUSBCHECK; 862 863 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 864 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 865 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 866 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 867 printf("uhci_remove_bulk: QH not found\n"); 868 return; 869 } 870 #else 871 ; 872 #endif 873 pqh->hlink = sqh->hlink; 874 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 875 if (sc->sc_bulk_end == sqh) 876 sc->sc_bulk_end = pqh; 877 } 878 879 int 880 uhci_intr(arg) 881 void *arg; 882 { 883 uhci_softc_t *sc = arg; 884 int status; 885 int ack; 886 uhci_intr_info_t *ii; 887 888 #ifdef UHCI_DEBUG 889 if (uhcidebug > 15) { 890 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 891 uhci_dumpregs(sc); 892 } 893 #endif 894 895 status = UREAD2(sc, UHCI_STS); 896 if (status == 0) /* The interrupt was not for us. */ 897 return (0); 898 899 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 900 if (sc->sc_suspend != PWR_RESUME) 901 printf("uhci_intr: suspended sts=0x%x\n", status); 902 #endif 903 904 ack = 0; 905 if (status & UHCI_STS_USBINT) 906 ack |= UHCI_STS_USBINT; 907 if (status & UHCI_STS_USBEI) 908 ack |= UHCI_STS_USBEI; 909 if (status & UHCI_STS_RD) { 910 ack |= UHCI_STS_RD; 911 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 912 } 913 if (status & UHCI_STS_HSE) { 914 ack |= UHCI_STS_HSE; 915 printf("%s: host controller process error\n", 916 USBDEVNAME(sc->sc_bus.bdev)); 917 } 918 if (status & UHCI_STS_HCPE) { 919 ack |= UHCI_STS_HCPE; 920 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 921 } 922 if (status & UHCI_STS_HCH) { 923 /* no acknowledge needed */ 924 printf("%s: host controller halted\n", 925 USBDEVNAME(sc->sc_bus.bdev)); 926 } 927 928 if (ack) /* acknowledge the ints */ 929 UWRITE2(sc, UHCI_STS, ack); 930 else /* nothing to acknowledge */ 931 return (0); 932 933 sc->sc_bus.intr_context++; 934 sc->sc_bus.no_intrs++; 935 936 /* 937 * Interrupts on UHCI really suck. When the host controller 938 * interrupts because a transfer is completed there is no 939 * way of knowing which transfer it was. You can scan down 940 * the TDs and QHs of the previous frame to limit the search, 941 * but that assumes that the interrupt was not delayed by more 942 * than 1 ms, which may not always be true (e.g. after debug 943 * output on a slow console). 944 * We scan all interrupt descriptors to see if any have 945 * completed. 946 */ 947 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 948 uhci_check_intr(sc, ii); 949 950 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 951 952 sc->sc_bus.intr_context--; 953 954 return (1); 955 } 956 957 /* Check for an interrupt. */ 958 void 959 uhci_check_intr(sc, ii) 960 uhci_softc_t *sc; 961 uhci_intr_info_t *ii; 962 { 963 uhci_soft_td_t *std, *lstd; 964 u_int32_t status; 965 966 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 967 #ifdef DIAGNOSTIC 968 if (ii == NULL) { 969 printf("uhci_check_intr: no ii? %p\n", ii); 970 return; 971 } 972 #endif 973 if (ii->stdstart == NULL) 974 return; 975 lstd = ii->stdend; 976 #ifdef DIAGNOSTIC 977 if (lstd == NULL) { 978 printf("uhci_check_intr: std==0\n"); 979 return; 980 } 981 #endif 982 /* 983 * If the last TD is still active we need to check whether there 984 * is a an error somewhere in the middle, or whether there was a 985 * short packet (SPD and not ACTIVE). 986 */ 987 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 988 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 989 for (std = ii->stdstart; std != lstd; std = std->link.std) { 990 status = LE(std->td.td_status); 991 if ((status & UHCI_TD_STALLED) || 992 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 993 UHCI_TD_SPD) 994 goto done; 995 } 996 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 997 ii, ii->stdstart)); 998 return; 999 } 1000 done: 1001 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1002 uhci_idone(ii); 1003 } 1004 1005 /* Called at splusb() */ 1006 void 1007 uhci_idone(ii) 1008 uhci_intr_info_t *ii; 1009 { 1010 usbd_xfer_handle xfer = ii->xfer; 1011 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1012 uhci_soft_td_t *std; 1013 u_int32_t status = 0, nstatus; 1014 int actlen; 1015 1016 #ifdef DIAGNOSTIC 1017 { 1018 int s = splhigh(); 1019 if (ii->isdone) { 1020 splx(s); 1021 printf("uhci_idone: ii=%p is done!\n", ii); 1022 return; 1023 } 1024 ii->isdone = 1; 1025 splx(s); 1026 } 1027 #endif 1028 1029 if (xfer->status == USBD_CANCELLED || 1030 xfer->status == USBD_TIMEOUT) { 1031 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1032 return; 1033 } 1034 1035 if (xfer->nframes != 0) { 1036 /* Isoc transfer, do things differently. */ 1037 uhci_soft_td_t **stds = upipe->u.iso.stds; 1038 int i, n, nframes; 1039 1040 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1041 1042 nframes = xfer->nframes; 1043 actlen = 0; 1044 n = xfer->hcprivint; 1045 for (i = 0; i < nframes; i++) { 1046 std = stds[n]; 1047 #ifdef UHCI_DEBUG 1048 if (uhcidebug > 5) { 1049 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1050 uhci_dump_td(std); 1051 } 1052 #endif 1053 if (++n >= UHCI_VFRAMELIST_COUNT) 1054 n = 0; 1055 status = LE(std->td.td_status); 1056 actlen += UHCI_TD_GET_ACTLEN(status); 1057 } 1058 upipe->u.iso.inuse -= nframes; 1059 xfer->actlen = actlen; 1060 xfer->status = USBD_NORMAL_COMPLETION; 1061 xfer->hcpriv = ii; 1062 usb_transfer_complete(xfer); 1063 return; 1064 } 1065 1066 #ifdef UHCI_DEBUG 1067 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1068 ii, xfer, upipe)); 1069 if (uhcidebug > 10) 1070 uhci_dump_tds(ii->stdstart); 1071 #endif 1072 1073 /* The transfer is done, compute actual length and status. */ 1074 actlen = 0; 1075 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1076 nstatus = LE(std->td.td_status); 1077 if (nstatus & UHCI_TD_ACTIVE) 1078 break; 1079 1080 status = nstatus; 1081 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1082 actlen += UHCI_TD_GET_ACTLEN(status); 1083 } 1084 /* If there are left over TDs we need to update the toggle. */ 1085 if (std != NULL) 1086 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1087 1088 status &= UHCI_TD_ERROR; 1089 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1090 actlen, status)); 1091 xfer->actlen = actlen; 1092 if (status != 0) { 1093 DPRINTFN((status&UHCI_TD_STALLED)*10, 1094 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1095 "status 0x%b\n", 1096 xfer->pipe->device->address, 1097 xfer->pipe->endpoint->edesc->bEndpointAddress, 1098 (int)status, 1099 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1100 "STALLED\30ACTIVE")); 1101 if (status == UHCI_TD_STALLED) 1102 xfer->status = USBD_STALLED; 1103 else 1104 xfer->status = USBD_IOERROR; /* more info XXX */ 1105 } else { 1106 xfer->status = USBD_NORMAL_COMPLETION; 1107 } 1108 xfer->hcpriv = ii; 1109 usb_transfer_complete(xfer); 1110 } 1111 1112 /* 1113 * Called when a request does not complete. 1114 */ 1115 void 1116 uhci_timeout(addr) 1117 void *addr; 1118 { 1119 uhci_intr_info_t *ii = addr; 1120 1121 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1122 1123 #ifdef UHCI_DEBUG 1124 if (uhcidebug > 10) 1125 uhci_dump_tds(ii->stdstart); 1126 #endif 1127 1128 ii->xfer->device->bus->intr_context++; 1129 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1130 ii->xfer->device->bus->intr_context--; 1131 } 1132 1133 /* 1134 * Wait here until controller claims to have an interrupt. 1135 * Then call uhci_intr and return. Use timeout to avoid waiting 1136 * too long. 1137 * Only used during boot when interrupts are not enabled yet. 1138 */ 1139 void 1140 uhci_waitintr(sc, xfer) 1141 uhci_softc_t *sc; 1142 usbd_xfer_handle xfer; 1143 { 1144 int timo = xfer->timeout; 1145 uhci_intr_info_t *ii; 1146 1147 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1148 1149 xfer->status = USBD_IN_PROGRESS; 1150 for (; timo >= 0; timo--) { 1151 usb_delay_ms(&sc->sc_bus, 1); 1152 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1153 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1154 uhci_intr(sc); 1155 if (xfer->status != USBD_IN_PROGRESS) 1156 return; 1157 } 1158 } 1159 1160 /* Timeout */ 1161 DPRINTF(("uhci_waitintr: timeout\n")); 1162 for (ii = LIST_FIRST(&sc->sc_intrhead); 1163 ii != NULL && ii->xfer != xfer; 1164 ii = LIST_NEXT(ii, list)) 1165 ; 1166 #ifdef DIAGNOSTIC 1167 if (ii == NULL) 1168 panic("uhci_waitintr: lost intr_info\n"); 1169 #endif 1170 uhci_idone(ii); 1171 } 1172 1173 void 1174 uhci_poll(bus) 1175 struct usbd_bus *bus; 1176 { 1177 uhci_softc_t *sc = (uhci_softc_t *)bus; 1178 1179 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1180 uhci_intr(sc); 1181 } 1182 1183 #if 0 1184 void 1185 uhci_reset(p) 1186 void *p; 1187 { 1188 uhci_softc_t *sc = p; 1189 int n; 1190 1191 UHCICMD(sc, UHCI_CMD_HCRESET); 1192 /* The reset bit goes low when the controller is done. */ 1193 for (n = 0; n < UHCI_RESET_TIMEOUT && 1194 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1195 delay(100); 1196 if (n >= UHCI_RESET_TIMEOUT) 1197 printf("%s: controller did not reset\n", 1198 USBDEVNAME(sc->sc_bus.bdev)); 1199 } 1200 #endif 1201 1202 usbd_status 1203 uhci_run(sc, run) 1204 uhci_softc_t *sc; 1205 int run; 1206 { 1207 int s, n, running; 1208 1209 run = run != 0; 1210 s = splusb(); 1211 DPRINTF(("uhci_run: setting run=%d\n", run)); 1212 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1213 for(n = 0; n < 10; n++) { 1214 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1215 /* return when we've entered the state we want */ 1216 if (run == running) { 1217 splx(s); 1218 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1219 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1220 return (USBD_NORMAL_COMPLETION); 1221 } 1222 usb_delay_ms(&sc->sc_bus, 1); 1223 } 1224 splx(s); 1225 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1226 run ? "start" : "stop"); 1227 return (USBD_IOERROR); 1228 } 1229 1230 /* 1231 * Memory management routines. 1232 * uhci_alloc_std allocates TDs 1233 * uhci_alloc_sqh allocates QHs 1234 * These two routines do their own free list management, 1235 * partly for speed, partly because allocating DMAable memory 1236 * has page size granularaity so much memory would be wasted if 1237 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1238 */ 1239 1240 uhci_soft_td_t * 1241 uhci_alloc_std(sc) 1242 uhci_softc_t *sc; 1243 { 1244 uhci_soft_td_t *std; 1245 usbd_status err; 1246 int i, offs; 1247 usb_dma_t dma; 1248 1249 if (sc->sc_freetds == NULL) { 1250 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1251 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1252 UHCI_TD_ALIGN, &dma); 1253 if (err) 1254 return (0); 1255 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1256 offs = i * UHCI_STD_SIZE; 1257 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1258 std->physaddr = DMAADDR(&dma) + offs; 1259 std->link.std = sc->sc_freetds; 1260 sc->sc_freetds = std; 1261 } 1262 } 1263 std = sc->sc_freetds; 1264 sc->sc_freetds = std->link.std; 1265 memset(&std->td, 0, sizeof(uhci_td_t)); 1266 return std; 1267 } 1268 1269 void 1270 uhci_free_std(sc, std) 1271 uhci_softc_t *sc; 1272 uhci_soft_td_t *std; 1273 { 1274 #ifdef DIAGNOSTIC 1275 #define TD_IS_FREE 0x12345678 1276 if (std->td.td_token == LE(TD_IS_FREE)) { 1277 printf("uhci_free_std: freeing free TD %p\n", std); 1278 return; 1279 } 1280 std->td.td_token = LE(TD_IS_FREE); 1281 #endif 1282 std->link.std = sc->sc_freetds; 1283 sc->sc_freetds = std; 1284 } 1285 1286 uhci_soft_qh_t * 1287 uhci_alloc_sqh(sc) 1288 uhci_softc_t *sc; 1289 { 1290 uhci_soft_qh_t *sqh; 1291 usbd_status err; 1292 int i, offs; 1293 usb_dma_t dma; 1294 1295 if (sc->sc_freeqhs == NULL) { 1296 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1297 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1298 UHCI_QH_ALIGN, &dma); 1299 if (err) 1300 return (0); 1301 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1302 offs = i * UHCI_SQH_SIZE; 1303 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1304 sqh->physaddr = DMAADDR(&dma) + offs; 1305 sqh->hlink = sc->sc_freeqhs; 1306 sc->sc_freeqhs = sqh; 1307 } 1308 } 1309 sqh = sc->sc_freeqhs; 1310 sc->sc_freeqhs = sqh->hlink; 1311 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1312 return (sqh); 1313 } 1314 1315 void 1316 uhci_free_sqh(sc, sqh) 1317 uhci_softc_t *sc; 1318 uhci_soft_qh_t *sqh; 1319 { 1320 sqh->hlink = sc->sc_freeqhs; 1321 sc->sc_freeqhs = sqh; 1322 } 1323 1324 #if 0 1325 /* 1326 * Enter a list of transfers onto a control queue. 1327 * Called at splusb() 1328 */ 1329 void 1330 uhci_enter_ctl_q(sc, sqh, ii) 1331 uhci_softc_t *sc; 1332 uhci_soft_qh_t *sqh; 1333 uhci_intr_info_t *ii; 1334 { 1335 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1336 1337 } 1338 #endif 1339 1340 void 1341 uhci_free_std_chain(sc, std, stdend) 1342 uhci_softc_t *sc; 1343 uhci_soft_td_t *std; 1344 uhci_soft_td_t *stdend; 1345 { 1346 uhci_soft_td_t *p; 1347 1348 for (; std != stdend; std = p) { 1349 p = std->link.std; 1350 uhci_free_std(sc, std); 1351 } 1352 } 1353 1354 usbd_status 1355 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1356 struct uhci_pipe *upipe; 1357 uhci_softc_t *sc; 1358 int len, rd, shortok; 1359 usb_dma_t *dma; 1360 uhci_soft_td_t **sp, **ep; 1361 { 1362 uhci_soft_td_t *p, *lastp; 1363 uhci_physaddr_t lastlink; 1364 int i, ntd, l, tog, maxp; 1365 u_int32_t status; 1366 int addr = upipe->pipe.device->address; 1367 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1368 1369 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1370 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1371 upipe->pipe.device->lowspeed, shortok)); 1372 if (len == 0) { 1373 *sp = *ep = 0; 1374 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1375 return (USBD_NORMAL_COMPLETION); 1376 } 1377 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1378 if (maxp == 0) { 1379 printf("uhci_alloc_std_chain: maxp=0\n"); 1380 return (USBD_INVAL); 1381 } 1382 ntd = (len + maxp - 1) / maxp; 1383 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1384 tog = upipe->nexttoggle; 1385 if (ntd % 2 == 0) 1386 tog ^= 1; 1387 upipe->nexttoggle = tog ^ 1; 1388 lastp = 0; 1389 lastlink = UHCI_PTR_T; 1390 ntd--; 1391 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1392 if (upipe->pipe.device->lowspeed) 1393 status |= UHCI_TD_LS; 1394 if (shortok) 1395 status |= UHCI_TD_SPD; 1396 for (i = ntd; i >= 0; i--) { 1397 p = uhci_alloc_std(sc); 1398 if (p == NULL) { 1399 uhci_free_std_chain(sc, lastp, 0); 1400 return (USBD_NOMEM); 1401 } 1402 p->link.std = lastp; 1403 p->td.td_link = LE(lastlink); 1404 lastp = p; 1405 lastlink = p->physaddr; 1406 p->td.td_status = LE(status); 1407 if (i == ntd) { 1408 /* last TD */ 1409 l = len % maxp; 1410 if (l == 0) l = maxp; 1411 *ep = p; 1412 } else 1413 l = maxp; 1414 p->td.td_token = 1415 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1416 UHCI_TD_OUT(l, endpt, addr, tog)); 1417 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1418 tog ^= 1; 1419 } 1420 *sp = lastp; 1421 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1422 upipe->nexttoggle)); 1423 return (USBD_NORMAL_COMPLETION); 1424 } 1425 1426 void 1427 uhci_device_clear_toggle(pipe) 1428 usbd_pipe_handle pipe; 1429 { 1430 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1431 upipe->nexttoggle = 0; 1432 } 1433 1434 void 1435 uhci_noop(pipe) 1436 usbd_pipe_handle pipe; 1437 { 1438 } 1439 1440 usbd_status 1441 uhci_device_bulk_transfer(xfer) 1442 usbd_xfer_handle xfer; 1443 { 1444 usbd_status err; 1445 1446 /* Insert last in queue. */ 1447 err = usb_insert_transfer(xfer); 1448 if (err) 1449 return (err); 1450 1451 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1452 * start first 1453 */ 1454 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1455 } 1456 1457 usbd_status 1458 uhci_device_bulk_start(xfer) 1459 usbd_xfer_handle xfer; 1460 { 1461 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1462 usbd_device_handle dev = upipe->pipe.device; 1463 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1464 uhci_intr_info_t *ii = upipe->iinfo; 1465 uhci_soft_td_t *data, *dataend; 1466 uhci_soft_qh_t *sqh; 1467 usbd_status err; 1468 int len, isread, endpt; 1469 int s; 1470 1471 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1472 xfer, xfer->length, xfer->flags)); 1473 1474 #ifdef DIAGNOSTIC 1475 if (xfer->rqflags & URQ_REQUEST) 1476 panic("uhci_device_bulk_transfer: a request\n"); 1477 #endif 1478 1479 len = xfer->length; 1480 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1481 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1482 sqh = upipe->u.bulk.sqh; 1483 1484 upipe->u.bulk.isread = isread; 1485 upipe->u.bulk.length = len; 1486 1487 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1488 xfer->flags & USBD_SHORT_XFER_OK, 1489 &xfer->dmabuf, &data, &dataend); 1490 if (err) 1491 return (err); 1492 dataend->td.td_status |= LE(UHCI_TD_IOC); 1493 1494 #ifdef UHCI_DEBUG 1495 if (uhcidebug > 8) { 1496 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1497 uhci_dump_tds(data); 1498 } 1499 #endif 1500 1501 /* Set up interrupt info. */ 1502 ii->xfer = xfer; 1503 ii->stdstart = data; 1504 ii->stdend = dataend; 1505 #if defined(__FreeBSD__) 1506 callout_handle_init(&ii->timeout_handle); 1507 #endif 1508 #ifdef DIAGNOSTIC 1509 ii->isdone = 0; 1510 #endif 1511 1512 sqh->elink = data; 1513 sqh->qh.qh_elink = LE(data->physaddr); 1514 sqh->intr_info = ii; 1515 1516 s = splusb(); 1517 uhci_add_bulk(sc, sqh); 1518 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1519 1520 if (xfer->timeout && !sc->sc_bus.use_polling) { 1521 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1522 ii->timeout_handle); 1523 } 1524 splx(s); 1525 1526 #ifdef UHCI_DEBUG 1527 if (uhcidebug > 10) { 1528 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1529 uhci_dump_tds(data); 1530 } 1531 #endif 1532 1533 if (sc->sc_bus.use_polling) 1534 uhci_waitintr(sc, xfer); 1535 1536 return (USBD_IN_PROGRESS); 1537 } 1538 1539 /* Abort a device bulk request. */ 1540 void 1541 uhci_device_bulk_abort(xfer) 1542 usbd_xfer_handle xfer; 1543 { 1544 DPRINTF(("uhci_device_bulk_abort:\n")); 1545 uhci_abort_xfer(xfer, USBD_CANCELLED); 1546 } 1547 1548 void 1549 uhci_abort_xfer(xfer, status) 1550 usbd_xfer_handle xfer; 1551 usbd_status status; 1552 { 1553 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1554 uhci_intr_info_t *ii = upipe->iinfo; 1555 uhci_soft_td_t *std; 1556 1557 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1558 1559 /* Make interrupt routine ignore it, */ 1560 xfer->status = status; 1561 1562 /* don't timeout, */ 1563 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1564 1565 /* make hardware ignore it, */ 1566 for (std = ii->stdstart; std != 0; std = std->link.std) 1567 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1568 1569 xfer->hcpriv = ii; 1570 1571 /* make sure hardware has completed, */ 1572 if (xfer->device->bus->intr_context) { 1573 /* We have no process context, so we can't use tsleep(). */ 1574 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1575 } else { 1576 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1577 KASSERT(intr_nesting_level == 0, 1578 ("ohci_abort_req in interrupt context")); 1579 #endif 1580 usb_delay_ms(xfer->pipe->device->bus, 1); 1581 /* and call final part of interrupt handler. */ 1582 uhci_abort_xfer_end(xfer); 1583 } 1584 } 1585 1586 void 1587 uhci_abort_xfer_end(v) 1588 void *v; 1589 { 1590 usbd_xfer_handle xfer = v; 1591 int s; 1592 1593 s = splusb(); 1594 usb_transfer_complete(xfer); 1595 splx(s); 1596 } 1597 1598 /* Close a device bulk pipe. */ 1599 void 1600 uhci_device_bulk_close(pipe) 1601 usbd_pipe_handle pipe; 1602 { 1603 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1604 usbd_device_handle dev = upipe->pipe.device; 1605 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1606 1607 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1608 uhci_free_intr_info(upipe->iinfo); 1609 /* XXX free other resources */ 1610 } 1611 1612 usbd_status 1613 uhci_device_ctrl_transfer(xfer) 1614 usbd_xfer_handle xfer; 1615 { 1616 usbd_status err; 1617 1618 /* Insert last in queue. */ 1619 err = usb_insert_transfer(xfer); 1620 if (err) 1621 return (err); 1622 1623 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1624 * start first 1625 */ 1626 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1627 } 1628 1629 usbd_status 1630 uhci_device_ctrl_start(xfer) 1631 usbd_xfer_handle xfer; 1632 { 1633 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1634 usbd_status err; 1635 1636 #ifdef DIAGNOSTIC 1637 if (!(xfer->rqflags & URQ_REQUEST)) 1638 panic("uhci_device_ctrl_transfer: not a request\n"); 1639 #endif 1640 1641 err = uhci_device_request(xfer); 1642 if (err) 1643 return (err); 1644 1645 if (sc->sc_bus.use_polling) 1646 uhci_waitintr(sc, xfer); 1647 return (USBD_IN_PROGRESS); 1648 } 1649 1650 usbd_status 1651 uhci_device_intr_transfer(xfer) 1652 usbd_xfer_handle xfer; 1653 { 1654 usbd_status err; 1655 1656 /* Insert last in queue. */ 1657 err = usb_insert_transfer(xfer); 1658 if (err) 1659 return (err); 1660 1661 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1662 * start first 1663 */ 1664 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1665 } 1666 1667 usbd_status 1668 uhci_device_intr_start(xfer) 1669 usbd_xfer_handle xfer; 1670 { 1671 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1672 usbd_device_handle dev = upipe->pipe.device; 1673 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1674 uhci_intr_info_t *ii = upipe->iinfo; 1675 uhci_soft_td_t *data, *dataend; 1676 uhci_soft_qh_t *sqh; 1677 usbd_status err; 1678 int i, s; 1679 1680 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1681 xfer, xfer->length, xfer->flags)); 1682 1683 #ifdef DIAGNOSTIC 1684 if (xfer->rqflags & URQ_REQUEST) 1685 panic("uhci_device_intr_transfer: a request\n"); 1686 #endif 1687 1688 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1689 xfer->flags & USBD_SHORT_XFER_OK, 1690 &xfer->dmabuf, &data, &dataend); 1691 if (err) 1692 return (err); 1693 dataend->td.td_status |= LE(UHCI_TD_IOC); 1694 1695 #ifdef UHCI_DEBUG 1696 if (uhcidebug > 10) { 1697 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1698 uhci_dump_tds(data); 1699 uhci_dump_qh(upipe->u.intr.qhs[0]); 1700 } 1701 #endif 1702 1703 s = splusb(); 1704 /* Set up interrupt info. */ 1705 ii->xfer = xfer; 1706 ii->stdstart = data; 1707 ii->stdend = dataend; 1708 #if defined(__FreeBSD__) 1709 callout_handle_init(&ii->timeout_handle); 1710 #endif 1711 #ifdef DIAGNOSTIC 1712 ii->isdone = 0; 1713 #endif 1714 1715 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1716 upipe->u.intr.qhs[0])); 1717 for (i = 0; i < upipe->u.intr.npoll; i++) { 1718 sqh = upipe->u.intr.qhs[i]; 1719 sqh->elink = data; 1720 sqh->qh.qh_elink = LE(data->physaddr); 1721 } 1722 splx(s); 1723 1724 #ifdef UHCI_DEBUG 1725 if (uhcidebug > 10) { 1726 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1727 uhci_dump_tds(data); 1728 uhci_dump_qh(upipe->u.intr.qhs[0]); 1729 } 1730 #endif 1731 1732 return (USBD_IN_PROGRESS); 1733 } 1734 1735 /* Abort a device control request. */ 1736 void 1737 uhci_device_ctrl_abort(xfer) 1738 usbd_xfer_handle xfer; 1739 { 1740 DPRINTF(("uhci_device_ctrl_abort:\n")); 1741 uhci_abort_xfer(xfer, USBD_CANCELLED); 1742 } 1743 1744 /* Close a device control pipe. */ 1745 void 1746 uhci_device_ctrl_close(pipe) 1747 usbd_pipe_handle pipe; 1748 { 1749 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1750 1751 uhci_free_intr_info(upipe->iinfo); 1752 /* XXX free other resources? */ 1753 } 1754 1755 /* Abort a device interrupt request. */ 1756 void 1757 uhci_device_intr_abort(xfer) 1758 usbd_xfer_handle xfer; 1759 { 1760 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1761 if (xfer->pipe->intrxfer == xfer) { 1762 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1763 xfer->pipe->intrxfer = 0; 1764 } 1765 uhci_abort_xfer(xfer, USBD_CANCELLED); 1766 } 1767 1768 /* Close a device interrupt pipe. */ 1769 void 1770 uhci_device_intr_close(pipe) 1771 usbd_pipe_handle pipe; 1772 { 1773 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1774 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1775 int i, s, npoll; 1776 1777 upipe->iinfo->stdstart = 0; /* inactive */ 1778 1779 /* Unlink descriptors from controller data structures. */ 1780 npoll = upipe->u.intr.npoll; 1781 uhci_lock_frames(sc); 1782 for (i = 0; i < npoll; i++) 1783 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1784 upipe->u.intr.qhs[i]); 1785 uhci_unlock_frames(sc); 1786 1787 /* 1788 * We now have to wait for any activity on the physical 1789 * descriptors to stop. 1790 */ 1791 usb_delay_ms(&sc->sc_bus, 2); 1792 1793 for(i = 0; i < npoll; i++) 1794 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1795 free(upipe->u.intr.qhs, M_USBHC); 1796 1797 s = splusb(); 1798 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1799 splx(s); 1800 uhci_free_intr_info(upipe->iinfo); 1801 1802 /* XXX free other resources */ 1803 } 1804 1805 usbd_status 1806 uhci_device_request(xfer) 1807 usbd_xfer_handle xfer; 1808 { 1809 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1810 usb_device_request_t *req = &xfer->request; 1811 usbd_device_handle dev = upipe->pipe.device; 1812 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1813 int addr = dev->address; 1814 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1815 uhci_intr_info_t *ii = upipe->iinfo; 1816 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1817 uhci_soft_qh_t *sqh; 1818 int len; 1819 u_int32_t ls; 1820 usbd_status err; 1821 int isread; 1822 int s; 1823 1824 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1825 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1826 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1827 UGETW(req->wIndex), UGETW(req->wLength), 1828 addr, endpt)); 1829 1830 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1831 isread = req->bmRequestType & UT_READ; 1832 len = UGETW(req->wLength); 1833 1834 setup = upipe->u.ctl.setup; 1835 stat = upipe->u.ctl.stat; 1836 sqh = upipe->u.ctl.sqh; 1837 1838 /* Set up data transaction */ 1839 if (len != 0) { 1840 upipe->nexttoggle = 1; 1841 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1842 xfer->flags & USBD_SHORT_XFER_OK, 1843 &xfer->dmabuf, &data, &dataend); 1844 if (err) 1845 return (err); 1846 next = data; 1847 dataend->link.std = stat; 1848 dataend->td.td_link = LE(stat->physaddr); 1849 } else { 1850 next = stat; 1851 } 1852 upipe->u.ctl.length = len; 1853 1854 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1855 1856 setup->link.std = next; 1857 setup->td.td_link = LE(next->physaddr); 1858 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1859 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1860 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1861 1862 stat->link.std = 0; 1863 stat->td.td_link = LE(UHCI_PTR_T); 1864 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1865 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1866 stat->td.td_token = 1867 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1868 UHCI_TD_IN (0, endpt, addr, 1)); 1869 stat->td.td_buffer = LE(0); 1870 1871 #ifdef UHCI_DEBUG 1872 if (uhcidebug > 10) { 1873 DPRINTF(("uhci_device_request: before transfer\n")); 1874 uhci_dump_tds(setup); 1875 } 1876 #endif 1877 1878 /* Set up interrupt info. */ 1879 ii->xfer = xfer; 1880 ii->stdstart = setup; 1881 ii->stdend = stat; 1882 #if defined(__FreeBSD__) 1883 callout_handle_init(&ii->timeout_handle); 1884 #endif 1885 #ifdef DIAGNOSTIC 1886 ii->isdone = 0; 1887 #endif 1888 1889 sqh->elink = setup; 1890 sqh->qh.qh_elink = LE(setup->physaddr); 1891 sqh->intr_info = ii; 1892 1893 s = splusb(); 1894 uhci_add_ctrl(sc, sqh); 1895 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1896 #ifdef UHCI_DEBUG 1897 if (uhcidebug > 12) { 1898 uhci_soft_td_t *std; 1899 uhci_soft_qh_t *xqh; 1900 uhci_soft_qh_t *sxqh; 1901 int maxqh = 0; 1902 uhci_physaddr_t link; 1903 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1904 for (std = sc->sc_vframes[0].htd, link = 0; 1905 (link & UHCI_PTR_Q) == 0; 1906 std = std->link.std) { 1907 link = LE(std->td.td_link); 1908 uhci_dump_td(std); 1909 } 1910 sxqh = (uhci_soft_qh_t *)std; 1911 uhci_dump_qh(sxqh); 1912 for (xqh = sxqh; 1913 xqh != NULL; 1914 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1915 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1916 uhci_dump_qh(xqh); 1917 } 1918 DPRINTF(("Enqueued QH:\n")); 1919 uhci_dump_qh(sqh); 1920 uhci_dump_tds(sqh->elink); 1921 } 1922 #endif 1923 if (xfer->timeout && !sc->sc_bus.use_polling) { 1924 usb_timeout(uhci_timeout, ii, 1925 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1926 } 1927 splx(s); 1928 1929 return (USBD_NORMAL_COMPLETION); 1930 } 1931 1932 usbd_status 1933 uhci_device_isoc_transfer(xfer) 1934 usbd_xfer_handle xfer; 1935 { 1936 usbd_status err; 1937 1938 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1939 1940 /* Put it on our queue, */ 1941 err = usb_insert_transfer(xfer); 1942 1943 /* bail out on error, */ 1944 if (err && err != USBD_IN_PROGRESS) 1945 return (err); 1946 1947 /* XXX should check inuse here */ 1948 1949 /* insert into schedule, */ 1950 uhci_device_isoc_enter(xfer); 1951 1952 /* and put on interrupt list if the pipe wasn't running */ 1953 if (!err) 1954 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1955 1956 return (err); 1957 } 1958 1959 void 1960 uhci_device_isoc_enter(xfer) 1961 usbd_xfer_handle xfer; 1962 { 1963 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1964 usbd_device_handle dev = upipe->pipe.device; 1965 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1966 struct iso *iso = &upipe->u.iso; 1967 uhci_soft_td_t *std; 1968 u_int32_t buf, len, status; 1969 int s, i, next, nframes; 1970 1971 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1972 "nframes=%d\n", 1973 iso->inuse, iso->next, xfer, xfer->nframes)); 1974 1975 if (xfer->status == USBD_IN_PROGRESS) { 1976 /* This request has already been entered into the frame list */ 1977 } 1978 1979 #ifdef DIAGNOSTIC 1980 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1981 printf("uhci_device_isoc_enter: overflow!\n"); 1982 #endif 1983 1984 next = iso->next; 1985 if (next == -1) { 1986 /* Not in use yet, schedule it a few frames ahead. */ 1987 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1988 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1989 } 1990 1991 xfer->status = USBD_IN_PROGRESS; 1992 xfer->hcprivint = next; 1993 1994 buf = DMAADDR(&xfer->dmabuf); 1995 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1996 UHCI_TD_ACTIVE | 1997 UHCI_TD_IOS)); 1998 nframes = xfer->nframes; 1999 s = splusb(); 2000 for (i = 0; i < nframes; i++) { 2001 std = iso->stds[next]; 2002 if (++next >= UHCI_VFRAMELIST_COUNT) 2003 next = 0; 2004 len = xfer->frlengths[i]; 2005 std->td.td_buffer = LE(buf); 2006 if (i == nframes - 1) 2007 status |= LE(UHCI_TD_IOC); 2008 std->td.td_status = status; 2009 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2010 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2011 #ifdef UHCI_DEBUG 2012 if (uhcidebug > 5) { 2013 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2014 uhci_dump_td(std); 2015 } 2016 #endif 2017 buf += len; 2018 } 2019 iso->next = next; 2020 iso->inuse += xfer->nframes; 2021 2022 splx(s); 2023 } 2024 2025 usbd_status 2026 uhci_device_isoc_start(xfer) 2027 usbd_xfer_handle xfer; 2028 { 2029 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2030 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2031 uhci_intr_info_t *ii = upipe->iinfo; 2032 uhci_soft_td_t *end; 2033 int s, i; 2034 2035 #ifdef DIAGNOSTIC 2036 if (xfer->status != USBD_IN_PROGRESS) 2037 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2038 #endif 2039 2040 /* Find the last TD */ 2041 i = xfer->hcprivint + xfer->nframes; 2042 if (i >= UHCI_VFRAMELIST_COUNT) 2043 i -= UHCI_VFRAMELIST_COUNT; 2044 end = upipe->u.iso.stds[i]; 2045 2046 s = splusb(); 2047 2048 /* Set up interrupt info. */ 2049 ii->xfer = xfer; 2050 ii->stdstart = end; 2051 ii->stdend = end; 2052 #if defined(__FreeBSD__) 2053 callout_handle_init(&ii->timeout_handle); 2054 #endif 2055 #ifdef DIAGNOSTIC 2056 ii->isdone = 0; 2057 #endif 2058 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2059 2060 splx(s); 2061 2062 return (USBD_IN_PROGRESS); 2063 } 2064 2065 void 2066 uhci_device_isoc_abort(xfer) 2067 usbd_xfer_handle xfer; 2068 { 2069 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2070 uhci_intr_info_t *ii = upipe->iinfo; 2071 uhci_soft_td_t **stds = upipe->u.iso.stds; 2072 uhci_soft_td_t *std; 2073 int i, n, nframes; 2074 2075 /* Make interrupt routine ignore it, */ 2076 xfer->status = USBD_CANCELLED; 2077 2078 /* make hardware ignore it, */ 2079 nframes = xfer->nframes; 2080 n = xfer->hcprivint; 2081 for (i = 0; i < nframes; i++) { 2082 std = stds[n]; 2083 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2084 if (++n >= UHCI_VFRAMELIST_COUNT) 2085 n = 0; 2086 } 2087 2088 xfer->hcpriv = ii; 2089 2090 /* make sure hardware has completed, */ 2091 if (xfer->device->bus->intr_context) { 2092 /* We have no process context, so we can't use tsleep(). */ 2093 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2094 } else { 2095 usb_delay_ms(xfer->pipe->device->bus, 1); 2096 /* and call final part of interrupt handler. */ 2097 uhci_abort_xfer_end(xfer); 2098 } 2099 } 2100 2101 void 2102 uhci_device_isoc_close(pipe) 2103 usbd_pipe_handle pipe; 2104 { 2105 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2106 usbd_device_handle dev = upipe->pipe.device; 2107 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2108 uhci_soft_td_t *std, *vstd; 2109 struct iso *iso; 2110 int i; 2111 2112 /* 2113 * Make sure all TDs are marked as inactive. 2114 * Wait for completion. 2115 * Unschedule. 2116 * Deallocate. 2117 */ 2118 iso = &upipe->u.iso; 2119 2120 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2121 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2122 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2123 2124 uhci_lock_frames(sc); 2125 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2126 std = iso->stds[i]; 2127 for (vstd = sc->sc_vframes[i].htd; 2128 vstd != NULL && vstd->link.std != std; 2129 vstd = vstd->link.std) 2130 ; 2131 if (vstd == NULL) { 2132 /*panic*/ 2133 printf("uhci_device_isoc_close: %p not found\n", std); 2134 uhci_unlock_frames(sc); 2135 return; 2136 } 2137 vstd->link = std->link; 2138 vstd->td.td_link = std->td.td_link; 2139 uhci_free_std(sc, std); 2140 } 2141 uhci_unlock_frames(sc); 2142 2143 free(iso->stds, M_USBHC); 2144 } 2145 2146 usbd_status 2147 uhci_setup_isoc(pipe) 2148 usbd_pipe_handle pipe; 2149 { 2150 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2151 usbd_device_handle dev = upipe->pipe.device; 2152 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2153 int addr = upipe->pipe.device->address; 2154 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2155 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2156 uhci_soft_td_t *std, *vstd; 2157 u_int32_t token; 2158 struct iso *iso; 2159 int i; 2160 2161 iso = &upipe->u.iso; 2162 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2163 M_USBHC, M_WAITOK); 2164 2165 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2166 UHCI_TD_OUT(0, endpt, addr, 0)); 2167 2168 /* Allocate the TDs and mark as inactive; */ 2169 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2170 std = uhci_alloc_std(sc); 2171 if (std == 0) 2172 goto bad; 2173 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2174 std->td.td_token = token; 2175 iso->stds[i] = std; 2176 } 2177 2178 /* Insert TDs into schedule. */ 2179 uhci_lock_frames(sc); 2180 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2181 std = iso->stds[i]; 2182 vstd = sc->sc_vframes[i].htd; 2183 std->link = vstd->link; 2184 std->td.td_link = vstd->td.td_link; 2185 vstd->link.std = std; 2186 vstd->td.td_link = LE(std->physaddr); 2187 } 2188 uhci_unlock_frames(sc); 2189 2190 iso->next = -1; 2191 iso->inuse = 0; 2192 2193 return (USBD_NORMAL_COMPLETION); 2194 2195 bad: 2196 while (--i >= 0) 2197 uhci_free_std(sc, iso->stds[i]); 2198 free(iso->stds, M_USBHC); 2199 return (USBD_NOMEM); 2200 } 2201 2202 void 2203 uhci_device_isoc_done(xfer) 2204 usbd_xfer_handle xfer; 2205 { 2206 uhci_intr_info_t *ii = xfer->hcpriv; 2207 2208 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2209 2210 /* Turn off the interrupt since it is active even if the TD is not. */ 2211 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2212 2213 LIST_REMOVE(ii, list); /* remove from active list */ 2214 } 2215 2216 void 2217 uhci_device_intr_done(xfer) 2218 usbd_xfer_handle xfer; 2219 { 2220 uhci_intr_info_t *ii = xfer->hcpriv; 2221 uhci_softc_t *sc = ii->sc; 2222 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2223 uhci_soft_qh_t *sqh; 2224 int i, npoll; 2225 2226 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2227 2228 npoll = upipe->u.intr.npoll; 2229 for(i = 0; i < npoll; i++) { 2230 sqh = upipe->u.intr.qhs[i]; 2231 sqh->elink = 0; 2232 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2233 } 2234 uhci_free_std_chain(sc, ii->stdstart, 0); 2235 2236 /* XXX Wasteful. */ 2237 if (xfer->pipe->repeat) { 2238 uhci_soft_td_t *data, *dataend; 2239 2240 /* This alloc cannot fail since we freed the chain above. */ 2241 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2242 xfer->flags & USBD_SHORT_XFER_OK, 2243 &xfer->dmabuf, &data, &dataend); 2244 dataend->td.td_status |= LE(UHCI_TD_IOC); 2245 2246 #ifdef UHCI_DEBUG 2247 if (uhcidebug > 10) { 2248 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2249 uhci_dump_tds(data); 2250 uhci_dump_qh(upipe->u.intr.qhs[0]); 2251 } 2252 #endif 2253 2254 ii->stdstart = data; 2255 ii->stdend = dataend; 2256 #if defined(__FreeBSD__) 2257 callout_handle_init(&ii->timeout_handle); 2258 #endif 2259 #ifdef DIAGNOSTIC 2260 ii->isdone = 0; 2261 #endif 2262 for (i = 0; i < npoll; i++) { 2263 sqh = upipe->u.intr.qhs[i]; 2264 sqh->elink = data; 2265 sqh->qh.qh_elink = LE(data->physaddr); 2266 } 2267 } else { 2268 ii->stdstart = 0; /* mark as inactive */ 2269 } 2270 } 2271 2272 /* Deallocate request data structures */ 2273 void 2274 uhci_device_ctrl_done(xfer) 2275 usbd_xfer_handle xfer; 2276 { 2277 uhci_intr_info_t *ii = xfer->hcpriv; 2278 uhci_softc_t *sc = ii->sc; 2279 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2280 2281 #ifdef DIAGNOSTIC 2282 if (!(xfer->rqflags & URQ_REQUEST)) 2283 panic("uhci_ctrl_done: not a request\n"); 2284 #endif 2285 2286 LIST_REMOVE(ii, list); /* remove from active list */ 2287 2288 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2289 2290 if (upipe->u.ctl.length != 0) 2291 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2292 2293 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2294 } 2295 2296 /* Deallocate request data structures */ 2297 void 2298 uhci_device_bulk_done(xfer) 2299 usbd_xfer_handle xfer; 2300 { 2301 uhci_intr_info_t *ii = xfer->hcpriv; 2302 uhci_softc_t *sc = ii->sc; 2303 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2304 2305 LIST_REMOVE(ii, list); /* remove from active list */ 2306 2307 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2308 2309 uhci_free_std_chain(sc, ii->stdstart, 0); 2310 2311 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2312 } 2313 2314 /* Add interrupt QH, called with vflock. */ 2315 void 2316 uhci_add_intr(sc, n, sqh) 2317 uhci_softc_t *sc; 2318 int n; 2319 uhci_soft_qh_t *sqh; 2320 { 2321 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2322 uhci_soft_qh_t *eqh; 2323 2324 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2325 eqh = vf->eqh; 2326 sqh->hlink = eqh->hlink; 2327 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2328 eqh->hlink = sqh; 2329 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2330 vf->eqh = sqh; 2331 vf->bandwidth++; 2332 } 2333 2334 /* Remove interrupt QH, called with vflock. */ 2335 void 2336 uhci_remove_intr(sc, n, sqh) 2337 uhci_softc_t *sc; 2338 int n; 2339 uhci_soft_qh_t *sqh; 2340 { 2341 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2342 uhci_soft_qh_t *pqh; 2343 2344 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2345 2346 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2347 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2348 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2349 DPRINTF(("uhci_remove_intr: QH not found\n")); 2350 return; 2351 } 2352 #else 2353 ; 2354 #endif 2355 pqh->hlink = sqh->hlink; 2356 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2357 if (vf->eqh == sqh) 2358 vf->eqh = pqh; 2359 vf->bandwidth--; 2360 } 2361 2362 usbd_status 2363 uhci_device_setintr(sc, upipe, ival) 2364 uhci_softc_t *sc; 2365 struct uhci_pipe *upipe; 2366 int ival; 2367 { 2368 uhci_soft_qh_t *sqh; 2369 int i, npoll, s; 2370 u_int bestbw, bw, bestoffs, offs; 2371 2372 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2373 if (ival == 0) { 2374 printf("uhci_setintr: 0 interval\n"); 2375 return (USBD_INVAL); 2376 } 2377 2378 if (ival > UHCI_VFRAMELIST_COUNT) 2379 ival = UHCI_VFRAMELIST_COUNT; 2380 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2381 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2382 2383 upipe->u.intr.npoll = npoll; 2384 upipe->u.intr.qhs = 2385 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2386 2387 /* 2388 * Figure out which offset in the schedule that has most 2389 * bandwidth left over. 2390 */ 2391 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2392 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2393 for (bw = i = 0; i < npoll; i++) 2394 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2395 if (bw < bestbw) { 2396 bestbw = bw; 2397 bestoffs = offs; 2398 } 2399 } 2400 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2401 2402 upipe->iinfo->stdstart = 0; 2403 for(i = 0; i < npoll; i++) { 2404 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2405 sqh->elink = 0; 2406 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2407 sqh->pos = MOD(i * ival + bestoffs); 2408 sqh->intr_info = upipe->iinfo; 2409 } 2410 #undef MOD 2411 2412 s = splusb(); 2413 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2414 splx(s); 2415 2416 uhci_lock_frames(sc); 2417 /* Enter QHs into the controller data structures. */ 2418 for(i = 0; i < npoll; i++) 2419 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2420 upipe->u.intr.qhs[i]); 2421 uhci_unlock_frames(sc); 2422 2423 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2424 return (USBD_NORMAL_COMPLETION); 2425 } 2426 2427 /* Open a new pipe. */ 2428 usbd_status 2429 uhci_open(pipe) 2430 usbd_pipe_handle pipe; 2431 { 2432 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2433 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2434 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2435 usbd_status err; 2436 2437 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2438 pipe, pipe->device->address, 2439 ed->bEndpointAddress, sc->sc_addr)); 2440 if (pipe->device->address == sc->sc_addr) { 2441 switch (ed->bEndpointAddress) { 2442 case USB_CONTROL_ENDPOINT: 2443 pipe->methods = &uhci_root_ctrl_methods; 2444 break; 2445 case UE_DIR_IN | UHCI_INTR_ENDPT: 2446 pipe->methods = &uhci_root_intr_methods; 2447 break; 2448 default: 2449 return (USBD_INVAL); 2450 } 2451 } else { 2452 upipe->iinfo = uhci_alloc_intr_info(sc); 2453 if (upipe->iinfo == 0) 2454 return (USBD_NOMEM); 2455 switch (ed->bmAttributes & UE_XFERTYPE) { 2456 case UE_CONTROL: 2457 pipe->methods = &uhci_device_ctrl_methods; 2458 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2459 if (upipe->u.ctl.sqh == NULL) 2460 goto bad; 2461 upipe->u.ctl.setup = uhci_alloc_std(sc); 2462 if (upipe->u.ctl.setup == NULL) { 2463 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2464 goto bad; 2465 } 2466 upipe->u.ctl.stat = uhci_alloc_std(sc); 2467 if (upipe->u.ctl.stat == NULL) { 2468 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2469 uhci_free_std(sc, upipe->u.ctl.setup); 2470 goto bad; 2471 } 2472 err = usb_allocmem(&sc->sc_bus, 2473 sizeof(usb_device_request_t), 2474 0, &upipe->u.ctl.reqdma); 2475 if (err) { 2476 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2477 uhci_free_std(sc, upipe->u.ctl.setup); 2478 uhci_free_std(sc, upipe->u.ctl.stat); 2479 goto bad; 2480 } 2481 break; 2482 case UE_INTERRUPT: 2483 pipe->methods = &uhci_device_intr_methods; 2484 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2485 case UE_ISOCHRONOUS: 2486 pipe->methods = &uhci_device_isoc_methods; 2487 return (uhci_setup_isoc(pipe)); 2488 case UE_BULK: 2489 pipe->methods = &uhci_device_bulk_methods; 2490 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2491 if (upipe->u.bulk.sqh == NULL) 2492 goto bad; 2493 break; 2494 } 2495 } 2496 return (USBD_NORMAL_COMPLETION); 2497 2498 bad: 2499 uhci_free_intr_info(upipe->iinfo); 2500 return (USBD_NOMEM); 2501 } 2502 2503 /* 2504 * Data structures and routines to emulate the root hub. 2505 */ 2506 usb_device_descriptor_t uhci_devd = { 2507 USB_DEVICE_DESCRIPTOR_SIZE, 2508 UDESC_DEVICE, /* type */ 2509 {0x00, 0x01}, /* USB version */ 2510 UCLASS_HUB, /* class */ 2511 USUBCLASS_HUB, /* subclass */ 2512 0, /* protocol */ 2513 64, /* max packet */ 2514 {0},{0},{0x00,0x01}, /* device id */ 2515 1,2,0, /* string indicies */ 2516 1 /* # of configurations */ 2517 }; 2518 2519 usb_config_descriptor_t uhci_confd = { 2520 USB_CONFIG_DESCRIPTOR_SIZE, 2521 UDESC_CONFIG, 2522 {USB_CONFIG_DESCRIPTOR_SIZE + 2523 USB_INTERFACE_DESCRIPTOR_SIZE + 2524 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2525 1, 2526 1, 2527 0, 2528 UC_SELF_POWERED, 2529 0 /* max power */ 2530 }; 2531 2532 usb_interface_descriptor_t uhci_ifcd = { 2533 USB_INTERFACE_DESCRIPTOR_SIZE, 2534 UDESC_INTERFACE, 2535 0, 2536 0, 2537 1, 2538 UCLASS_HUB, 2539 USUBCLASS_HUB, 2540 0, 2541 0 2542 }; 2543 2544 usb_endpoint_descriptor_t uhci_endpd = { 2545 USB_ENDPOINT_DESCRIPTOR_SIZE, 2546 UDESC_ENDPOINT, 2547 UE_DIR_IN | UHCI_INTR_ENDPT, 2548 UE_INTERRUPT, 2549 {8}, 2550 255 2551 }; 2552 2553 usb_hub_descriptor_t uhci_hubd_piix = { 2554 USB_HUB_DESCRIPTOR_SIZE, 2555 UDESC_HUB, 2556 2, 2557 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2558 50, /* power on to power good */ 2559 0, 2560 { 0x00 }, /* both ports are removable */ 2561 }; 2562 2563 int 2564 uhci_str(p, l, s) 2565 usb_string_descriptor_t *p; 2566 int l; 2567 char *s; 2568 { 2569 int i; 2570 2571 if (l == 0) 2572 return (0); 2573 p->bLength = 2 * strlen(s) + 2; 2574 if (l == 1) 2575 return (1); 2576 p->bDescriptorType = UDESC_STRING; 2577 l -= 2; 2578 for (i = 0; s[i] && l > 1; i++, l -= 2) 2579 USETW2(p->bString[i], 0, s[i]); 2580 return (2*i+2); 2581 } 2582 2583 /* 2584 * Simulate a hardware hub by handling all the necessary requests. 2585 */ 2586 usbd_status 2587 uhci_root_ctrl_transfer(xfer) 2588 usbd_xfer_handle xfer; 2589 { 2590 usbd_status err; 2591 2592 /* Insert last in queue. */ 2593 err = usb_insert_transfer(xfer); 2594 if (err) 2595 return (err); 2596 2597 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2598 * start first 2599 */ 2600 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2601 } 2602 2603 usbd_status 2604 uhci_root_ctrl_start(xfer) 2605 usbd_xfer_handle xfer; 2606 { 2607 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2608 usb_device_request_t *req; 2609 void *buf = NULL; 2610 int port, x; 2611 int s, len, value, index, status, change, l, totlen = 0; 2612 usb_port_status_t ps; 2613 usbd_status err; 2614 2615 #ifdef DIAGNOSTIC 2616 if (!(xfer->rqflags & URQ_REQUEST)) 2617 panic("uhci_root_ctrl_transfer: not a request\n"); 2618 #endif 2619 req = &xfer->request; 2620 2621 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2622 req->bmRequestType, req->bRequest)); 2623 2624 len = UGETW(req->wLength); 2625 value = UGETW(req->wValue); 2626 index = UGETW(req->wIndex); 2627 2628 if (len != 0) 2629 buf = KERNADDR(&xfer->dmabuf); 2630 2631 #define C(x,y) ((x) | ((y) << 8)) 2632 switch(C(req->bRequest, req->bmRequestType)) { 2633 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2634 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2635 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2636 /* 2637 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2638 * for the integrated root hub. 2639 */ 2640 break; 2641 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2642 if (len > 0) { 2643 *(u_int8_t *)buf = sc->sc_conf; 2644 totlen = 1; 2645 } 2646 break; 2647 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2648 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2649 switch(value >> 8) { 2650 case UDESC_DEVICE: 2651 if ((value & 0xff) != 0) { 2652 err = USBD_IOERROR; 2653 goto ret; 2654 } 2655 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2656 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2657 memcpy(buf, &uhci_devd, l); 2658 break; 2659 case UDESC_CONFIG: 2660 if ((value & 0xff) != 0) { 2661 err = USBD_IOERROR; 2662 goto ret; 2663 } 2664 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2665 memcpy(buf, &uhci_confd, l); 2666 buf = (char *)buf + l; 2667 len -= l; 2668 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2669 totlen += l; 2670 memcpy(buf, &uhci_ifcd, l); 2671 buf = (char *)buf + l; 2672 len -= l; 2673 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2674 totlen += l; 2675 memcpy(buf, &uhci_endpd, l); 2676 break; 2677 case UDESC_STRING: 2678 if (len == 0) 2679 break; 2680 *(u_int8_t *)buf = 0; 2681 totlen = 1; 2682 switch (value & 0xff) { 2683 case 1: /* Vendor */ 2684 totlen = uhci_str(buf, len, sc->sc_vendor); 2685 break; 2686 case 2: /* Product */ 2687 totlen = uhci_str(buf, len, "UHCI root hub"); 2688 break; 2689 } 2690 break; 2691 default: 2692 err = USBD_IOERROR; 2693 goto ret; 2694 } 2695 break; 2696 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2697 if (len > 0) { 2698 *(u_int8_t *)buf = 0; 2699 totlen = 1; 2700 } 2701 break; 2702 case C(UR_GET_STATUS, UT_READ_DEVICE): 2703 if (len > 1) { 2704 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2705 totlen = 2; 2706 } 2707 break; 2708 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2709 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2710 if (len > 1) { 2711 USETW(((usb_status_t *)buf)->wStatus, 0); 2712 totlen = 2; 2713 } 2714 break; 2715 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2716 if (value >= USB_MAX_DEVICES) { 2717 err = USBD_IOERROR; 2718 goto ret; 2719 } 2720 sc->sc_addr = value; 2721 break; 2722 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2723 if (value != 0 && value != 1) { 2724 err = USBD_IOERROR; 2725 goto ret; 2726 } 2727 sc->sc_conf = value; 2728 break; 2729 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2730 break; 2731 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2732 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2733 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2734 err = USBD_IOERROR; 2735 goto ret; 2736 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2737 break; 2738 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2739 break; 2740 /* Hub requests */ 2741 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2742 break; 2743 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2744 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2745 "port=%d feature=%d\n", 2746 index, value)); 2747 if (index == 1) 2748 port = UHCI_PORTSC1; 2749 else if (index == 2) 2750 port = UHCI_PORTSC2; 2751 else { 2752 err = USBD_IOERROR; 2753 goto ret; 2754 } 2755 switch(value) { 2756 case UHF_PORT_ENABLE: 2757 x = UREAD2(sc, port); 2758 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2759 break; 2760 case UHF_PORT_SUSPEND: 2761 x = UREAD2(sc, port); 2762 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2763 break; 2764 case UHF_PORT_RESET: 2765 x = UREAD2(sc, port); 2766 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2767 break; 2768 case UHF_C_PORT_CONNECTION: 2769 x = UREAD2(sc, port); 2770 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2771 break; 2772 case UHF_C_PORT_ENABLE: 2773 x = UREAD2(sc, port); 2774 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2775 break; 2776 case UHF_C_PORT_OVER_CURRENT: 2777 x = UREAD2(sc, port); 2778 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2779 break; 2780 case UHF_C_PORT_RESET: 2781 sc->sc_isreset = 0; 2782 err = USBD_NORMAL_COMPLETION; 2783 goto ret; 2784 case UHF_PORT_CONNECTION: 2785 case UHF_PORT_OVER_CURRENT: 2786 case UHF_PORT_POWER: 2787 case UHF_PORT_LOW_SPEED: 2788 case UHF_C_PORT_SUSPEND: 2789 default: 2790 err = USBD_IOERROR; 2791 goto ret; 2792 } 2793 break; 2794 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2795 if (index == 1) 2796 port = UHCI_PORTSC1; 2797 else if (index == 2) 2798 port = UHCI_PORTSC2; 2799 else { 2800 err = USBD_IOERROR; 2801 goto ret; 2802 } 2803 if (len > 0) { 2804 *(u_int8_t *)buf = 2805 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2806 UHCI_PORTSC_LS_SHIFT; 2807 totlen = 1; 2808 } 2809 break; 2810 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2811 if (value != 0) { 2812 err = USBD_IOERROR; 2813 goto ret; 2814 } 2815 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2816 totlen = l; 2817 memcpy(buf, &uhci_hubd_piix, l); 2818 break; 2819 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2820 if (len != 4) { 2821 err = USBD_IOERROR; 2822 goto ret; 2823 } 2824 memset(buf, 0, len); 2825 totlen = len; 2826 break; 2827 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2828 if (index == 1) 2829 port = UHCI_PORTSC1; 2830 else if (index == 2) 2831 port = UHCI_PORTSC2; 2832 else { 2833 err = USBD_IOERROR; 2834 goto ret; 2835 } 2836 if (len != 4) { 2837 err = USBD_IOERROR; 2838 goto ret; 2839 } 2840 x = UREAD2(sc, port); 2841 status = change = 0; 2842 if (x & UHCI_PORTSC_CCS ) 2843 status |= UPS_CURRENT_CONNECT_STATUS; 2844 if (x & UHCI_PORTSC_CSC ) 2845 change |= UPS_C_CONNECT_STATUS; 2846 if (x & UHCI_PORTSC_PE ) 2847 status |= UPS_PORT_ENABLED; 2848 if (x & UHCI_PORTSC_POEDC) 2849 change |= UPS_C_PORT_ENABLED; 2850 if (x & UHCI_PORTSC_OCI ) 2851 status |= UPS_OVERCURRENT_INDICATOR; 2852 if (x & UHCI_PORTSC_OCIC ) 2853 change |= UPS_C_OVERCURRENT_INDICATOR; 2854 if (x & UHCI_PORTSC_SUSP ) 2855 status |= UPS_SUSPEND; 2856 if (x & UHCI_PORTSC_LSDA ) 2857 status |= UPS_LOW_SPEED; 2858 status |= UPS_PORT_POWER; 2859 if (sc->sc_isreset) 2860 change |= UPS_C_PORT_RESET; 2861 USETW(ps.wPortStatus, status); 2862 USETW(ps.wPortChange, change); 2863 l = min(len, sizeof ps); 2864 memcpy(buf, &ps, l); 2865 totlen = l; 2866 break; 2867 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2868 err = USBD_IOERROR; 2869 goto ret; 2870 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2871 break; 2872 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2873 if (index == 1) 2874 port = UHCI_PORTSC1; 2875 else if (index == 2) 2876 port = UHCI_PORTSC2; 2877 else { 2878 err = USBD_IOERROR; 2879 goto ret; 2880 } 2881 switch(value) { 2882 case UHF_PORT_ENABLE: 2883 x = UREAD2(sc, port); 2884 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2885 break; 2886 case UHF_PORT_SUSPEND: 2887 x = UREAD2(sc, port); 2888 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2889 break; 2890 case UHF_PORT_RESET: 2891 x = UREAD2(sc, port); 2892 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2893 usb_delay_ms(&sc->sc_bus, 10); 2894 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2895 delay(100); 2896 x = UREAD2(sc, port); 2897 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2898 delay(100); 2899 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2900 index, UREAD2(sc, port))); 2901 sc->sc_isreset = 1; 2902 break; 2903 case UHF_C_PORT_CONNECTION: 2904 case UHF_C_PORT_ENABLE: 2905 case UHF_C_PORT_OVER_CURRENT: 2906 case UHF_PORT_CONNECTION: 2907 case UHF_PORT_OVER_CURRENT: 2908 case UHF_PORT_POWER: 2909 case UHF_PORT_LOW_SPEED: 2910 case UHF_C_PORT_SUSPEND: 2911 case UHF_C_PORT_RESET: 2912 default: 2913 err = USBD_IOERROR; 2914 goto ret; 2915 } 2916 break; 2917 default: 2918 err = USBD_IOERROR; 2919 goto ret; 2920 } 2921 xfer->actlen = totlen; 2922 err = USBD_NORMAL_COMPLETION; 2923 ret: 2924 xfer->status = err; 2925 xfer->hcpriv = 0; 2926 s = splusb(); 2927 usb_transfer_complete(xfer); 2928 splx(s); 2929 return (USBD_IN_PROGRESS); 2930 } 2931 2932 /* Abort a root control request. */ 2933 void 2934 uhci_root_ctrl_abort(xfer) 2935 usbd_xfer_handle xfer; 2936 { 2937 /* Nothing to do, all transfers are syncronous. */ 2938 } 2939 2940 /* Close the root pipe. */ 2941 void 2942 uhci_root_ctrl_close(pipe) 2943 usbd_pipe_handle pipe; 2944 { 2945 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2946 2947 sc->sc_has_timo = 0; 2948 DPRINTF(("uhci_root_ctrl_close\n")); 2949 } 2950 2951 /* Abort a root interrupt request. */ 2952 void 2953 uhci_root_intr_abort(xfer) 2954 usbd_xfer_handle xfer; 2955 { 2956 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2957 2958 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2959 sc->sc_has_timo = 0; 2960 2961 if (xfer->pipe->intrxfer == xfer) { 2962 DPRINTF(("uhci_root_intr_abort: remove\n")); 2963 xfer->pipe->intrxfer = 0; 2964 } 2965 xfer->status = USBD_CANCELLED; 2966 usb_transfer_complete(xfer); 2967 } 2968 2969 usbd_status 2970 uhci_root_intr_transfer(xfer) 2971 usbd_xfer_handle xfer; 2972 { 2973 usbd_status err; 2974 2975 /* Insert last in queue. */ 2976 err = usb_insert_transfer(xfer); 2977 if (err) 2978 return (err); 2979 2980 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2981 * start first 2982 */ 2983 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2984 } 2985 2986 /* Start a transfer on the root interrupt pipe */ 2987 usbd_status 2988 uhci_root_intr_start(xfer) 2989 usbd_xfer_handle xfer; 2990 { 2991 usbd_pipe_handle pipe = xfer->pipe; 2992 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2993 2994 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 2995 xfer, xfer->length, xfer->flags)); 2996 2997 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 2998 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 2999 sc->sc_has_timo = xfer; 3000 return (USBD_IN_PROGRESS); 3001 } 3002 3003 /* Close the root interrupt pipe. */ 3004 void 3005 uhci_root_intr_close(pipe) 3006 usbd_pipe_handle pipe; 3007 { 3008 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3009 3010 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3011 sc->sc_has_timo = 0; 3012 DPRINTF(("uhci_root_intr_close\n")); 3013 } 3014
Indexes created Tue Sep 30 20:09:53 GMT 2025