uhci.c revision 1.126
1 /* $NetBSD: uhci.c,v 1.126 2000/11/10 14:11:49 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 (lennart (at) augustsson.net) 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 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 82 /*#define UHCI_CTL_LOOP */ 83 84 #if defined(__FreeBSD__) 85 #include <machine/clock.h> 86 87 #define delay(d) DELAY(d) 88 #endif 89 90 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 91 92 #if defined(__OpenBSD__) 93 struct cfdriver uhci_cd = { 94 NULL, "uhci", DV_DULL 95 }; 96 #endif 97 98 #ifdef UHCI_DEBUG 99 uhci_softc_t *thesc; 100 #define DPRINTF(x) if (uhcidebug) printf x 101 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 102 int uhcidebug = 0; 103 int uhcinoloop = 0; 104 #ifndef __NetBSD__ 105 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 106 #endif 107 #else 108 #define DPRINTF(x) 109 #define DPRINTFN(n,x) 110 #endif 111 112 /* 113 * The UHCI controller is little endian, so on big endian machines 114 * the data strored in memory needs to be swapped. 115 */ 116 #if defined(__FreeBSD__) || defined(__OpenBSD__) 117 #if BYTE_ORDER == BIG_ENDIAN 118 #define htole32(x) (bswap32(x)) 119 #define le32toh(x) (bswap32(x)) 120 #else 121 #define htole32(x) (x) 122 #define le32toh(x) (x) 123 #endif 124 #endif 125 126 struct uhci_pipe { 127 struct usbd_pipe pipe; 128 int nexttoggle; 129 130 u_char aborting; 131 usbd_xfer_handle abortstart, abortend; 132 133 /* Info needed for different pipe kinds. */ 134 union { 135 /* Control pipe */ 136 struct { 137 uhci_soft_qh_t *sqh; 138 usb_dma_t reqdma; 139 uhci_soft_td_t *setup, *stat; 140 u_int length; 141 } ctl; 142 /* Interrupt pipe */ 143 struct { 144 int npoll; 145 uhci_soft_qh_t **qhs; 146 } intr; 147 /* Bulk pipe */ 148 struct { 149 uhci_soft_qh_t *sqh; 150 u_int length; 151 int isread; 152 } bulk; 153 /* Iso pipe */ 154 struct iso { 155 uhci_soft_td_t **stds; 156 int next, inuse; 157 } iso; 158 } u; 159 }; 160 161 Static void uhci_busreset(uhci_softc_t *); 162 Static void uhci_shutdown(void *v); 163 Static void uhci_power(int, void *); 164 Static usbd_status uhci_run(uhci_softc_t *, int run); 165 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 166 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 167 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 168 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 169 #if 0 170 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 171 uhci_intr_info_t *); 172 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 173 #endif 174 175 Static void uhci_free_std_chain(uhci_softc_t *, 176 uhci_soft_td_t *, uhci_soft_td_t *); 177 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 178 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 179 uhci_soft_td_t **, uhci_soft_td_t **); 180 Static void uhci_poll_hub(void *); 181 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 182 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 183 Static void uhci_idone(uhci_intr_info_t *); 184 185 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 186 187 Static void uhci_timeout(void *); 188 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 189 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 190 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 191 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 192 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 193 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 194 Static int uhci_str(usb_string_descriptor_t *, int, char *); 195 Static void uhci_add_loop(uhci_softc_t *sc); 196 Static void uhci_rem_loop(uhci_softc_t *sc); 197 198 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 199 Static void uhci_device_isoc_enter(usbd_xfer_handle); 200 201 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 202 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 203 204 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 205 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 206 207 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 208 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 209 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 210 Static void uhci_device_ctrl_close(usbd_pipe_handle); 211 Static void uhci_device_ctrl_done(usbd_xfer_handle); 212 213 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 215 Static void uhci_device_intr_abort(usbd_xfer_handle); 216 Static void uhci_device_intr_close(usbd_pipe_handle); 217 Static void uhci_device_intr_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 221 Static void uhci_device_bulk_abort(usbd_xfer_handle); 222 Static void uhci_device_bulk_close(usbd_pipe_handle); 223 Static void uhci_device_bulk_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 227 Static void uhci_device_isoc_abort(usbd_xfer_handle); 228 Static void uhci_device_isoc_close(usbd_pipe_handle); 229 Static void uhci_device_isoc_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 233 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 234 Static void uhci_root_ctrl_close(usbd_pipe_handle); 235 Static void uhci_root_ctrl_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 239 Static void uhci_root_intr_abort(usbd_xfer_handle); 240 Static void uhci_root_intr_close(usbd_pipe_handle); 241 Static void uhci_root_intr_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_open(usbd_pipe_handle); 244 Static void uhci_poll(struct usbd_bus *); 245 Static void uhci_softintr(struct usbd_bus *); 246 247 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 248 249 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 250 Static void uhci_remove_intr(uhci_softc_t*, uhci_soft_qh_t*); 251 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 252 struct uhci_pipe *pipe, int ival); 253 254 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 255 Static void uhci_noop(usbd_pipe_handle pipe); 256 257 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 258 uhci_soft_qh_t *); 259 260 #ifdef UHCI_DEBUG 261 Static void uhci_dump_all(uhci_softc_t *); 262 Static void uhci_dumpregs(uhci_softc_t *); 263 Static void uhci_dump_qhs(uhci_soft_qh_t *); 264 Static void uhci_dump_qh(uhci_soft_qh_t *); 265 Static void uhci_dump_tds(uhci_soft_td_t *); 266 Static void uhci_dump_td(uhci_soft_td_t *); 267 Static void uhci_dump_ii(uhci_intr_info_t *ii); 268 void uhci_dump(void); 269 #endif 270 271 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 272 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 273 #define UWRITE1(sc, r, x) \ 274 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 275 #define UWRITE2(sc, r, x) \ 276 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 277 #define UWRITE4(sc, r, x) \ 278 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 279 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 280 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 281 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 282 283 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 284 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 285 286 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 287 288 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 289 290 #define UHCI_INTR_ENDPT 1 291 292 struct usbd_bus_methods uhci_bus_methods = { 293 uhci_open, 294 uhci_softintr, 295 uhci_poll, 296 uhci_allocm, 297 uhci_freem, 298 uhci_allocx, 299 uhci_freex, 300 }; 301 302 struct usbd_pipe_methods uhci_root_ctrl_methods = { 303 uhci_root_ctrl_transfer, 304 uhci_root_ctrl_start, 305 uhci_root_ctrl_abort, 306 uhci_root_ctrl_close, 307 uhci_noop, 308 uhci_root_ctrl_done, 309 }; 310 311 struct usbd_pipe_methods uhci_root_intr_methods = { 312 uhci_root_intr_transfer, 313 uhci_root_intr_start, 314 uhci_root_intr_abort, 315 uhci_root_intr_close, 316 uhci_noop, 317 uhci_root_intr_done, 318 }; 319 320 struct usbd_pipe_methods uhci_device_ctrl_methods = { 321 uhci_device_ctrl_transfer, 322 uhci_device_ctrl_start, 323 uhci_device_ctrl_abort, 324 uhci_device_ctrl_close, 325 uhci_noop, 326 uhci_device_ctrl_done, 327 }; 328 329 struct usbd_pipe_methods uhci_device_intr_methods = { 330 uhci_device_intr_transfer, 331 uhci_device_intr_start, 332 uhci_device_intr_abort, 333 uhci_device_intr_close, 334 uhci_device_clear_toggle, 335 uhci_device_intr_done, 336 }; 337 338 struct usbd_pipe_methods uhci_device_bulk_methods = { 339 uhci_device_bulk_transfer, 340 uhci_device_bulk_start, 341 uhci_device_bulk_abort, 342 uhci_device_bulk_close, 343 uhci_device_clear_toggle, 344 uhci_device_bulk_done, 345 }; 346 347 struct usbd_pipe_methods uhci_device_isoc_methods = { 348 uhci_device_isoc_transfer, 349 uhci_device_isoc_start, 350 uhci_device_isoc_abort, 351 uhci_device_isoc_close, 352 uhci_noop, 353 uhci_device_isoc_done, 354 }; 355 356 #define uhci_add_intr_info(sc, ii) \ 357 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 358 #define uhci_del_intr_info(ii) \ 359 LIST_REMOVE((ii), list) 360 361 Static __inline__ uhci_soft_qh_t * 362 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 363 { 364 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 365 366 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 367 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 368 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 369 printf("uhci_find_prev_qh: QH not found\n"); 370 return (NULL); 371 } 372 #endif 373 } 374 return (pqh); 375 } 376 377 void 378 uhci_busreset(uhci_softc_t *sc) 379 { 380 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 381 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 382 UHCICMD(sc, 0); /* do nothing */ 383 } 384 385 usbd_status 386 uhci_init(uhci_softc_t *sc) 387 { 388 usbd_status err; 389 int i, j; 390 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 391 uhci_soft_td_t *std; 392 393 DPRINTFN(1,("uhci_init: start\n")); 394 395 #ifdef UHCI_DEBUG 396 thesc = sc; 397 398 if (uhcidebug > 2) 399 uhci_dumpregs(sc); 400 #endif 401 402 uhci_run(sc, 0); /* stop the controller */ 403 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 404 405 uhci_busreset(sc); 406 407 /* Allocate and initialize real frame array. */ 408 err = usb_allocmem(&sc->sc_bus, 409 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 410 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 411 if (err) 412 return (err); 413 sc->sc_pframes = KERNADDR(&sc->sc_dma); 414 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 415 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 416 417 /* 418 * Allocate a TD, inactive, that hangs from the last QH. 419 * This is to avoid a bug in the PIIX that makes it run berserk 420 * otherwise. 421 */ 422 std = uhci_alloc_std(sc); 423 if (std == NULL) 424 return (USBD_NOMEM); 425 std->link.std = NULL; 426 std->td.td_link = htole32(UHCI_PTR_T); 427 std->td.td_status = htole32(0); /* inactive */ 428 std->td.td_token = htole32(0); 429 std->td.td_buffer = htole32(0); 430 431 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 432 lsqh = uhci_alloc_sqh(sc); 433 if (lsqh == NULL) 434 return (USBD_NOMEM); 435 lsqh->hlink = NULL; 436 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 437 lsqh->elink = std; 438 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 439 sc->sc_last_qh = lsqh; 440 441 /* Allocate the dummy QH where bulk traffic will be queued. */ 442 bsqh = uhci_alloc_sqh(sc); 443 if (bsqh == NULL) 444 return (USBD_NOMEM); 445 bsqh->hlink = lsqh; 446 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 447 bsqh->elink = NULL; 448 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 449 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 450 451 /* Allocate dummy QH where high speed control traffic will be queued. */ 452 chsqh = uhci_alloc_sqh(sc); 453 if (chsqh == NULL) 454 return (USBD_NOMEM); 455 chsqh->hlink = bsqh; 456 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 457 chsqh->elink = NULL; 458 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 459 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 460 461 /* Allocate dummy QH where control traffic will be queued. */ 462 clsqh = uhci_alloc_sqh(sc); 463 if (clsqh == NULL) 464 return (USBD_NOMEM); 465 clsqh->hlink = bsqh; 466 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 467 clsqh->elink = NULL; 468 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 469 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 470 471 /* 472 * Make all (virtual) frame list pointers point to the interrupt 473 * queue heads and the interrupt queue heads at the control 474 * queue head and point the physical frame list to the virtual. 475 */ 476 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 477 std = uhci_alloc_std(sc); 478 sqh = uhci_alloc_sqh(sc); 479 if (std == NULL || sqh == NULL) 480 return (USBD_NOMEM); 481 std->link.sqh = sqh; 482 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 483 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 484 std->td.td_token = htole32(0); 485 std->td.td_buffer = htole32(0); 486 sqh->hlink = clsqh; 487 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 488 sqh->elink = NULL; 489 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 490 sc->sc_vframes[i].htd = std; 491 sc->sc_vframes[i].etd = std; 492 sc->sc_vframes[i].hqh = sqh; 493 sc->sc_vframes[i].eqh = sqh; 494 for (j = i; 495 j < UHCI_FRAMELIST_COUNT; 496 j += UHCI_VFRAMELIST_COUNT) 497 sc->sc_pframes[j] = htole32(std->physaddr); 498 } 499 500 LIST_INIT(&sc->sc_intrhead); 501 502 SIMPLEQ_INIT(&sc->sc_free_xfers); 503 504 usb_callout_init(sc->sc_poll_handle); 505 506 /* Set up the bus struct. */ 507 sc->sc_bus.methods = &uhci_bus_methods; 508 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 509 510 #if defined(__NetBSD__) || defined(__OpenBSD__) 511 sc->sc_suspend = PWR_RESUME; 512 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 513 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 514 #endif 515 516 DPRINTFN(1,("uhci_init: enabling\n")); 517 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 518 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 519 520 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 521 522 return (uhci_run(sc, 1)); /* and here we go... */ 523 } 524 525 #if defined(__NetBSD__) || defined(__OpenBSD__) 526 int 527 uhci_activate(device_ptr_t self, enum devact act) 528 { 529 struct uhci_softc *sc = (struct uhci_softc *)self; 530 int rv = 0; 531 532 switch (act) { 533 case DVACT_ACTIVATE: 534 return (EOPNOTSUPP); 535 break; 536 537 case DVACT_DEACTIVATE: 538 if (sc->sc_child != NULL) 539 rv = config_deactivate(sc->sc_child); 540 break; 541 } 542 return (rv); 543 } 544 545 int 546 uhci_detach(struct uhci_softc *sc, int flags) 547 { 548 usbd_xfer_handle xfer; 549 int rv = 0; 550 551 if (sc->sc_child != NULL) 552 rv = config_detach(sc->sc_child, flags); 553 554 if (rv != 0) 555 return (rv); 556 557 #if defined(__NetBSD__) || defined(__OpenBSD__) 558 powerhook_disestablish(sc->sc_powerhook); 559 shutdownhook_disestablish(sc->sc_shutdownhook); 560 #endif 561 562 /* Free all xfers associated with this HC. */ 563 for (;;) { 564 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 565 if (xfer == NULL) 566 break; 567 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 568 free(xfer, M_USB); 569 } 570 571 /* XXX free other data structures XXX */ 572 573 return (rv); 574 } 575 #endif 576 577 usbd_status 578 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 579 { 580 struct uhci_softc *sc = (struct uhci_softc *)bus; 581 u_int32_t n; 582 583 /* 584 * XXX 585 * Since we are allocating a buffer we can assume that we will 586 * need TDs for it. Since we don't want to alolocate those from 587 * an interrupt context, we allocate them here and free them again. 588 * This is no guarantee that we'll get the TDs next time... 589 */ 590 n = size / 8; 591 if (n > 16) { 592 u_int32_t i; 593 uhci_soft_td_t **stds; 594 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 595 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, M_NOWAIT); 596 memset(stds, 0, sizeof(uhci_soft_td_t *) * n); 597 for(i=0; i < n; i++) 598 stds[i] = uhci_alloc_std(sc); 599 for(i=0; i < n; i++) 600 if (stds[i] != NULL) 601 uhci_free_std(sc, stds[i]); 602 free(stds, M_TEMP); 603 } 604 605 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 606 } 607 608 void 609 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 610 { 611 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 612 } 613 614 usbd_xfer_handle 615 uhci_allocx(struct usbd_bus *bus) 616 { 617 struct uhci_softc *sc = (struct uhci_softc *)bus; 618 usbd_xfer_handle xfer; 619 620 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 621 if (xfer != NULL) { 622 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 623 #ifdef DIAGNOSTIC 624 if (xfer->busy_free != XFER_FREE) { 625 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 626 xfer->busy_free); 627 } 628 #endif 629 } else { 630 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 631 } 632 if (xfer != NULL) { 633 memset(xfer, 0, sizeof (struct uhci_xfer)); 634 UXFER(xfer)->iinfo.sc = sc; 635 #ifdef DIAGNOSTIC 636 UXFER(xfer)->iinfo.isdone = 1; 637 #endif 638 } 639 #ifdef DIAGNOSTIC 640 xfer->busy_free = XFER_BUSY; 641 #endif 642 return (xfer); 643 } 644 645 void 646 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 647 { 648 struct uhci_softc *sc = (struct uhci_softc *)bus; 649 650 #ifdef DIAGNOSTIC 651 if (xfer->busy_free != XFER_BUSY) { 652 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 653 xfer->busy_free); 654 return; 655 } 656 xfer->busy_free = XFER_FREE; 657 if (!UXFER(xfer)->iinfo.isdone) { 658 printf("uhci_freex: !isdone\n"); 659 return; 660 } 661 #endif 662 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 663 } 664 665 /* 666 * Shut down the controller when the system is going down. 667 */ 668 void 669 uhci_shutdown(void *v) 670 { 671 uhci_softc_t *sc = v; 672 673 DPRINTF(("uhci_shutdown: stopping the HC\n")); 674 uhci_run(sc, 0); /* stop the controller */ 675 } 676 677 /* 678 * Handle suspend/resume. 679 * 680 * We need to switch to polling mode here, because this routine is 681 * called from an interrupt context. This is all right since we 682 * are almost suspended anyway. 683 */ 684 void 685 uhci_power(int why, void *v) 686 { 687 uhci_softc_t *sc = v; 688 int cmd; 689 int s; 690 691 s = splusb(); 692 cmd = UREAD2(sc, UHCI_CMD); 693 694 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 695 sc, why, sc->sc_suspend, cmd)); 696 697 if (why != PWR_RESUME) { 698 #ifdef UHCI_DEBUG 699 if (uhcidebug > 2) 700 uhci_dumpregs(sc); 701 #endif 702 if (sc->sc_intr_xfer != NULL) 703 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 704 sc->sc_intr_xfer); 705 sc->sc_bus.use_polling++; 706 uhci_run(sc, 0); /* stop the controller */ 707 708 /* save some state if BIOS doesn't */ 709 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 710 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 711 712 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 713 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 714 sc->sc_suspend = why; 715 sc->sc_bus.use_polling--; 716 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 717 } else { 718 #ifdef DIAGNOSTIC 719 if (sc->sc_suspend == PWR_RESUME) 720 printf("uhci_power: weird, resume without suspend.\n"); 721 #endif 722 sc->sc_bus.use_polling++; 723 sc->sc_suspend = why; 724 if (cmd & UHCI_CMD_RS) 725 uhci_run(sc, 0); /* in case BIOS has started it */ 726 727 /* restore saved state */ 728 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 729 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 730 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 731 732 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 733 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 734 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 735 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 736 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 737 uhci_run(sc, 1); /* and start traffic again */ 738 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 739 sc->sc_bus.use_polling--; 740 if (sc->sc_intr_xfer != NULL) 741 usb_callout(sc->sc_poll_handle, sc->sc_ival, 742 uhci_poll_hub, sc->sc_intr_xfer); 743 #ifdef UHCI_DEBUG 744 if (uhcidebug > 2) 745 uhci_dumpregs(sc); 746 #endif 747 } 748 splx(s); 749 } 750 751 #ifdef UHCI_DEBUG 752 Static void 753 uhci_dumpregs(uhci_softc_t *sc) 754 { 755 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 756 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 757 USBDEVNAME(sc->sc_bus.bdev), 758 UREAD2(sc, UHCI_CMD), 759 UREAD2(sc, UHCI_STS), 760 UREAD2(sc, UHCI_INTR), 761 UREAD2(sc, UHCI_FRNUM), 762 UREAD4(sc, UHCI_FLBASEADDR), 763 UREAD1(sc, UHCI_SOF), 764 UREAD2(sc, UHCI_PORTSC1), 765 UREAD2(sc, UHCI_PORTSC2))); 766 } 767 768 void 769 uhci_dump_td(uhci_soft_td_t *p) 770 { 771 char sbuf[128], sbuf2[128]; 772 773 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 774 "token=0x%08lx buffer=0x%08lx\n", 775 p, (long)p->physaddr, 776 (long)le32toh(p->td.td_link), 777 (long)le32toh(p->td.td_status), 778 (long)le32toh(p->td.td_token), 779 (long)le32toh(p->td.td_buffer))); 780 781 bitmask_snprintf((int)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 782 sbuf, sizeof(sbuf)); 783 bitmask_snprintf((int)le32toh(p->td.td_status), 784 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 785 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 786 sbuf2, sizeof(sbuf2)); 787 788 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 789 "D=%d,maxlen=%d\n", sbuf, sbuf2, 790 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 791 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 792 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 793 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 794 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 795 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 796 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 797 } 798 799 void 800 uhci_dump_qh(uhci_soft_qh_t *sqh) 801 { 802 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 803 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 804 le32toh(sqh->qh.qh_elink))); 805 } 806 807 808 #if 1 809 void 810 uhci_dump(void) 811 { 812 uhci_dump_all(thesc); 813 } 814 #endif 815 816 void 817 uhci_dump_all(uhci_softc_t *sc) 818 { 819 uhci_dumpregs(sc); 820 printf("intrs=%d\n", sc->sc_bus.no_intrs); 821 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 822 uhci_dump_qh(sc->sc_lctl_start); 823 } 824 825 826 void 827 uhci_dump_qhs(uhci_soft_qh_t *sqh) 828 { 829 uhci_dump_qh(sqh); 830 831 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 832 * Traverses sideways first, then down. 833 * 834 * QH1 835 * QH2 836 * No QH 837 * TD2.1 838 * TD2.2 839 * TD1.1 840 * etc. 841 * 842 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 843 */ 844 845 846 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 847 uhci_dump_qhs(sqh->hlink); 848 else 849 DPRINTF(("No QH\n")); 850 851 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 852 uhci_dump_tds(sqh->elink); 853 else 854 DPRINTF(("No TD\n")); 855 } 856 857 void 858 uhci_dump_tds(uhci_soft_td_t *std) 859 { 860 uhci_soft_td_t *td; 861 862 for(td = std; td != NULL; td = td->link.std) { 863 uhci_dump_td(td); 864 865 /* Check whether the link pointer in this TD marks 866 * the link pointer as end of queue. This avoids 867 * printing the free list in case the queue/TD has 868 * already been moved there (seatbelt). 869 */ 870 if (le32toh(td->td.td_link) & UHCI_PTR_T || 871 le32toh(td->td.td_link) == 0) 872 break; 873 } 874 } 875 876 Static void 877 uhci_dump_ii(uhci_intr_info_t *ii) 878 { 879 usbd_pipe_handle pipe; 880 usb_endpoint_descriptor_t *ed; 881 usbd_device_handle dev; 882 883 #ifdef DIAGNOSTIC 884 #define DONE ii->isdone 885 #else 886 #define DONE 0 887 #endif 888 if (ii == NULL) { 889 printf("ii NULL\n"); 890 return; 891 } 892 if (ii->xfer == NULL) { 893 printf("ii %p: done=%d xfer=NULL\n", 894 ii, DONE); 895 return; 896 } 897 pipe = ii->xfer->pipe; 898 if (pipe == NULL) { 899 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 900 ii, DONE, ii->xfer); 901 return; 902 } 903 ed = pipe->endpoint->edesc; 904 dev = pipe->device; 905 printf("ii %p: done=%d xfer=%p dev=%p vid=0x%04x pid=0x%04x addr=%d pipe=%p ep=0x%02x attr=0x%02x\n", 906 ii, DONE, ii->xfer, dev, 907 UGETW(dev->ddesc.idVendor), 908 UGETW(dev->ddesc.idProduct), 909 dev->address, pipe, 910 ed->bEndpointAddress, ed->bmAttributes); 911 #undef DONE 912 } 913 914 void uhci_dump_iis(struct uhci_softc *sc); 915 void 916 uhci_dump_iis(struct uhci_softc *sc) 917 { 918 uhci_intr_info_t *ii; 919 920 printf("intr_info list:\n"); 921 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 922 uhci_dump_ii(ii); 923 } 924 925 void iidump(void); 926 void iidump(void) { uhci_dump_iis(thesc); } 927 928 #endif 929 930 /* 931 * This routine is executed periodically and simulates interrupts 932 * from the root controller interrupt pipe for port status change. 933 */ 934 void 935 uhci_poll_hub(void *addr) 936 { 937 usbd_xfer_handle xfer = addr; 938 usbd_pipe_handle pipe = xfer->pipe; 939 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 940 int s; 941 u_char *p; 942 943 DPRINTFN(20, ("uhci_poll_hub\n")); 944 945 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 946 947 p = KERNADDR(&xfer->dmabuf); 948 p[0] = 0; 949 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 950 p[0] |= 1<<1; 951 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 952 p[0] |= 1<<2; 953 if (p[0] == 0) 954 /* No change, try again in a while */ 955 return; 956 957 xfer->actlen = 1; 958 xfer->status = USBD_NORMAL_COMPLETION; 959 s = splusb(); 960 xfer->device->bus->intr_context++; 961 usb_transfer_complete(xfer); 962 xfer->device->bus->intr_context--; 963 splx(s); 964 } 965 966 void 967 uhci_root_intr_done(usbd_xfer_handle xfer) 968 { 969 } 970 971 void 972 uhci_root_ctrl_done(usbd_xfer_handle xfer) 973 { 974 } 975 976 /* 977 * Let the last QH loop back to the high speed control transfer QH. 978 * This is what intel calls "bandwidth reclamation" and improves 979 * USB performance a lot for some devices. 980 * If we are already looping, just count it. 981 */ 982 void 983 uhci_add_loop(uhci_softc_t *sc) { 984 #ifdef UHCI_DEBUG 985 if (uhcinoloop) 986 return; 987 #endif 988 if (++sc->sc_loops == 1) { 989 DPRINTFN(5,("uhci_start_loop: add\n")); 990 /* Note, we don't loop back the soft pointer. */ 991 sc->sc_last_qh->qh.qh_hlink = 992 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 993 } 994 } 995 996 void 997 uhci_rem_loop(uhci_softc_t *sc) { 998 #ifdef UHCI_DEBUG 999 if (uhcinoloop) 1000 return; 1001 #endif 1002 if (--sc->sc_loops == 0) { 1003 DPRINTFN(5,("uhci_end_loop: remove\n")); 1004 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1005 } 1006 } 1007 1008 /* Add high speed control QH, called at splusb(). */ 1009 void 1010 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1011 { 1012 uhci_soft_qh_t *eqh; 1013 1014 SPLUSBCHECK; 1015 1016 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1017 eqh = sc->sc_hctl_end; 1018 sqh->hlink = eqh->hlink; 1019 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1020 eqh->hlink = sqh; 1021 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1022 sc->sc_hctl_end = sqh; 1023 #ifdef UHCI_CTL_LOOP 1024 uhci_add_loop(sc); 1025 #endif 1026 } 1027 1028 /* Remove high speed control QH, called at splusb(). */ 1029 void 1030 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1031 { 1032 uhci_soft_qh_t *pqh; 1033 1034 SPLUSBCHECK; 1035 1036 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1037 #ifdef UHCI_CTL_LOOP 1038 uhci_rem_loop(sc); 1039 #endif 1040 /* 1041 * The T bit should be set in the elink of the QH so that the HC 1042 * doesn't follow the pointer. This condition may fail if the 1043 * the transferred packet was short so that the QH still points 1044 * at the last used TD. 1045 * In this case we set the T bit and wait a little for the HC 1046 * to stop looking at the TD. 1047 */ 1048 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1049 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1050 delay(UHCI_QH_REMOVE_DELAY); 1051 } 1052 1053 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1054 pqh->hlink = sqh->hlink; 1055 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1056 delay(UHCI_QH_REMOVE_DELAY); 1057 if (sc->sc_hctl_end == sqh) 1058 sc->sc_hctl_end = pqh; 1059 } 1060 1061 /* Add low speed control QH, called at splusb(). */ 1062 void 1063 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1064 { 1065 uhci_soft_qh_t *eqh; 1066 1067 SPLUSBCHECK; 1068 1069 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1070 eqh = sc->sc_lctl_end; 1071 sqh->hlink = eqh->hlink; 1072 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1073 eqh->hlink = sqh; 1074 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1075 sc->sc_lctl_end = sqh; 1076 } 1077 1078 /* Remove low speed control QH, called at splusb(). */ 1079 void 1080 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1081 { 1082 uhci_soft_qh_t *pqh; 1083 1084 SPLUSBCHECK; 1085 1086 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1087 /* See comment in uhci_remove_hs_ctrl() */ 1088 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1089 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1090 delay(UHCI_QH_REMOVE_DELAY); 1091 } 1092 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1093 pqh->hlink = sqh->hlink; 1094 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1095 delay(UHCI_QH_REMOVE_DELAY); 1096 if (sc->sc_lctl_end == sqh) 1097 sc->sc_lctl_end = pqh; 1098 } 1099 1100 /* Add bulk QH, called at splusb(). */ 1101 void 1102 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1103 { 1104 uhci_soft_qh_t *eqh; 1105 1106 SPLUSBCHECK; 1107 1108 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1109 eqh = sc->sc_bulk_end; 1110 sqh->hlink = eqh->hlink; 1111 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1112 eqh->hlink = sqh; 1113 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1114 sc->sc_bulk_end = sqh; 1115 uhci_add_loop(sc); 1116 } 1117 1118 /* Remove bulk QH, called at splusb(). */ 1119 void 1120 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1121 { 1122 uhci_soft_qh_t *pqh; 1123 1124 SPLUSBCHECK; 1125 1126 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1127 uhci_rem_loop(sc); 1128 /* See comment in uhci_remove_hs_ctrl() */ 1129 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1130 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1131 delay(UHCI_QH_REMOVE_DELAY); 1132 } 1133 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1134 pqh->hlink = sqh->hlink; 1135 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1136 delay(UHCI_QH_REMOVE_DELAY); 1137 if (sc->sc_bulk_end == sqh) 1138 sc->sc_bulk_end = pqh; 1139 } 1140 1141 int 1142 uhci_intr(void *arg) 1143 { 1144 uhci_softc_t *sc = arg; 1145 int status; 1146 int ack; 1147 1148 #ifdef UHCI_DEBUG 1149 if (uhcidebug > 15) { 1150 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 1151 uhci_dumpregs(sc); 1152 } 1153 #endif 1154 1155 if (sc->sc_suspend != PWR_RESUME) { 1156 printf("%s: interrupt while not operating ignored\n", 1157 USBDEVNAME(sc->sc_bus.bdev)); 1158 return (0); 1159 } 1160 1161 status = UREAD2(sc, UHCI_STS); 1162 if (status == 0) /* The interrupt was not for us. */ 1163 return (0); 1164 1165 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1166 if (sc->sc_suspend != PWR_RESUME) 1167 printf("uhci_intr: suspended sts=0x%x\n", status); 1168 #endif 1169 1170 ack = 0; 1171 if (status & UHCI_STS_USBINT) 1172 ack |= UHCI_STS_USBINT; 1173 if (status & UHCI_STS_USBEI) 1174 ack |= UHCI_STS_USBEI; 1175 if (status & UHCI_STS_RD) { 1176 ack |= UHCI_STS_RD; 1177 #ifdef UHCI_DEBUG 1178 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1179 #endif 1180 } 1181 if (status & UHCI_STS_HSE) { 1182 ack |= UHCI_STS_HSE; 1183 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1184 } 1185 if (status & UHCI_STS_HCPE) { 1186 ack |= UHCI_STS_HCPE; 1187 printf("%s: host controller process error\n", 1188 USBDEVNAME(sc->sc_bus.bdev)); 1189 } 1190 if (status & UHCI_STS_HCH) { 1191 /* no acknowledge needed */ 1192 printf("%s: host controller halted\n", 1193 USBDEVNAME(sc->sc_bus.bdev)); 1194 sc->sc_dying = 1; 1195 #ifdef UHCI_DEBUG 1196 uhci_dump_all(sc); 1197 #endif 1198 1199 } 1200 1201 if (ack) /* acknowledge the ints */ 1202 UWRITE2(sc, UHCI_STS, ack); 1203 else /* nothing to acknowledge */ 1204 return (0); 1205 1206 sc->sc_bus.no_intrs++; 1207 usb_schedsoftintr(&sc->sc_bus); 1208 1209 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1210 1211 return (1); 1212 } 1213 1214 void 1215 uhci_softintr(struct usbd_bus *bus) 1216 { 1217 uhci_softc_t *sc = (uhci_softc_t *)bus; 1218 uhci_intr_info_t *ii; 1219 1220 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1221 1222 sc->sc_bus.intr_context++; 1223 1224 /* 1225 * Interrupts on UHCI really suck. When the host controller 1226 * interrupts because a transfer is completed there is no 1227 * way of knowing which transfer it was. You can scan down 1228 * the TDs and QHs of the previous frame to limit the search, 1229 * but that assumes that the interrupt was not delayed by more 1230 * than 1 ms, which may not always be true (e.g. after debug 1231 * output on a slow console). 1232 * We scan all interrupt descriptors to see if any have 1233 * completed. 1234 */ 1235 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1236 uhci_check_intr(sc, ii); 1237 1238 sc->sc_bus.intr_context--; 1239 } 1240 1241 /* Check for an interrupt. */ 1242 void 1243 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1244 { 1245 uhci_soft_td_t *std, *lstd; 1246 u_int32_t status; 1247 1248 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1249 #ifdef DIAGNOSTIC 1250 if (ii == NULL) { 1251 printf("uhci_check_intr: no ii? %p\n", ii); 1252 return; 1253 } 1254 #endif 1255 if (ii->stdstart == NULL) 1256 return; 1257 lstd = ii->stdend; 1258 #ifdef DIAGNOSTIC 1259 if (lstd == NULL) { 1260 printf("uhci_check_intr: std==0\n"); 1261 return; 1262 } 1263 #endif 1264 /* 1265 * If the last TD is still active we need to check whether there 1266 * is a an error somewhere in the middle, or whether there was a 1267 * short packet (SPD and not ACTIVE). 1268 */ 1269 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1270 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1271 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1272 status = le32toh(std->td.td_status); 1273 /* If there's an active TD the xfer isn't done. */ 1274 if (status & UHCI_TD_ACTIVE) 1275 break; 1276 /* Any kind of error makes the xfer done. */ 1277 if (status & UHCI_TD_STALLED) 1278 goto done; 1279 /* We want short packets, and it is short: it's done */ 1280 if ((status & UHCI_TD_SPD) && 1281 UHCI_TD_GET_ACTLEN(status) < 1282 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1283 goto done; 1284 } 1285 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1286 ii, ii->stdstart)); 1287 return; 1288 } 1289 done: 1290 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1291 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1292 uhci_idone(ii); 1293 } 1294 1295 /* Called at splusb() */ 1296 void 1297 uhci_idone(uhci_intr_info_t *ii) 1298 { 1299 usbd_xfer_handle xfer = ii->xfer; 1300 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1301 uhci_soft_td_t *std; 1302 u_int32_t status = 0, nstatus; 1303 int actlen; 1304 1305 #ifdef DIAGNOSTIC 1306 { 1307 int s = splhigh(); 1308 if (ii->isdone) { 1309 splx(s); 1310 #ifdef UHCI_DEBUG 1311 printf("uhci_idone: ii is done!\n "); 1312 uhci_dump_ii(ii); 1313 #else 1314 printf("uhci_idone: ii=%p is done!\n", ii); 1315 #endif 1316 return; 1317 } 1318 ii->isdone = 1; 1319 splx(s); 1320 } 1321 #endif 1322 1323 if (xfer->status == USBD_CANCELLED || 1324 xfer->status == USBD_TIMEOUT) { 1325 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1326 return; 1327 } 1328 1329 if (xfer->nframes != 0) { 1330 /* Isoc transfer, do things differently. */ 1331 uhci_soft_td_t **stds = upipe->u.iso.stds; 1332 int i, n, nframes, len; 1333 1334 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1335 1336 nframes = xfer->nframes; 1337 actlen = 0; 1338 n = UXFER(xfer)->curframe; 1339 for (i = 0; i < nframes; i++) { 1340 std = stds[n]; 1341 #ifdef UHCI_DEBUG 1342 if (uhcidebug > 5) { 1343 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1344 uhci_dump_td(std); 1345 } 1346 #endif 1347 if (++n >= UHCI_VFRAMELIST_COUNT) 1348 n = 0; 1349 status = le32toh(std->td.td_status); 1350 len = UHCI_TD_GET_ACTLEN(status); 1351 xfer->frlengths[i] = len; 1352 actlen += len; 1353 } 1354 upipe->u.iso.inuse -= nframes; 1355 xfer->actlen = actlen; 1356 xfer->status = USBD_NORMAL_COMPLETION; 1357 usb_transfer_complete(xfer); 1358 return; 1359 } 1360 1361 #ifdef UHCI_DEBUG 1362 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1363 ii, xfer, upipe)); 1364 if (uhcidebug > 10) 1365 uhci_dump_tds(ii->stdstart); 1366 #endif 1367 1368 /* The transfer is done, compute actual length and status. */ 1369 actlen = 0; 1370 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1371 nstatus = le32toh(std->td.td_status); 1372 if (nstatus & UHCI_TD_ACTIVE) 1373 break; 1374 1375 status = nstatus; 1376 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1377 UHCI_TD_PID_SETUP) 1378 actlen += UHCI_TD_GET_ACTLEN(status); 1379 } 1380 /* If there are left over TDs we need to update the toggle. */ 1381 if (std != NULL) 1382 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1383 1384 status &= UHCI_TD_ERROR; 1385 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1386 actlen, status)); 1387 xfer->actlen = actlen; 1388 if (status != 0) { 1389 #ifdef UHCI_DEBUG 1390 char sbuf[128]; 1391 1392 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1393 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1394 sbuf, sizeof(sbuf)); 1395 1396 DPRINTFN((status == UHCI_TD_STALLED)*10, 1397 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1398 "status 0x%s\n", 1399 xfer->pipe->device->address, 1400 xfer->pipe->endpoint->edesc->bEndpointAddress, 1401 sbuf)); 1402 #endif 1403 1404 if (status == UHCI_TD_STALLED) 1405 xfer->status = USBD_STALLED; 1406 else 1407 xfer->status = USBD_IOERROR; /* more info XXX */ 1408 } else { 1409 xfer->status = USBD_NORMAL_COMPLETION; 1410 } 1411 usb_transfer_complete(xfer); 1412 } 1413 1414 /* 1415 * Called when a request does not complete. 1416 */ 1417 void 1418 uhci_timeout(void *addr) 1419 { 1420 uhci_intr_info_t *ii = addr; 1421 1422 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1423 1424 #ifdef UHCI_DEBUG 1425 if (uhcidebug > 10) 1426 uhci_dump_tds(ii->stdstart); 1427 #endif 1428 1429 ii->xfer->device->bus->intr_context++; 1430 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1431 ii->xfer->device->bus->intr_context--; 1432 } 1433 1434 /* 1435 * Wait here until controller claims to have an interrupt. 1436 * Then call uhci_intr and return. Use timeout to avoid waiting 1437 * too long. 1438 * Only used during boot when interrupts are not enabled yet. 1439 */ 1440 void 1441 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1442 { 1443 int timo = xfer->timeout; 1444 uhci_intr_info_t *ii; 1445 1446 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1447 1448 xfer->status = USBD_IN_PROGRESS; 1449 for (; timo >= 0; timo--) { 1450 usb_delay_ms(&sc->sc_bus, 1); 1451 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1452 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1453 uhci_intr(sc); 1454 if (xfer->status != USBD_IN_PROGRESS) 1455 return; 1456 } 1457 } 1458 1459 /* Timeout */ 1460 DPRINTF(("uhci_waitintr: timeout\n")); 1461 for (ii = LIST_FIRST(&sc->sc_intrhead); 1462 ii != NULL && ii->xfer != xfer; 1463 ii = LIST_NEXT(ii, list)) 1464 ; 1465 #ifdef DIAGNOSTIC 1466 if (ii == NULL) 1467 panic("uhci_waitintr: lost intr_info\n"); 1468 #endif 1469 uhci_idone(ii); 1470 } 1471 1472 void 1473 uhci_poll(struct usbd_bus *bus) 1474 { 1475 uhci_softc_t *sc = (uhci_softc_t *)bus; 1476 1477 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1478 uhci_intr(sc); 1479 } 1480 1481 #if 0 1482 void 1483 uhci_reset(uhci_softc_t *sc) 1484 { 1485 int n; 1486 1487 UHCICMD(sc, UHCI_CMD_HCRESET); 1488 /* The reset bit goes low when the controller is done. */ 1489 for (n = 0; n < UHCI_RESET_TIMEOUT && 1490 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1491 usb_delay_ms(&sc->sc_bus, 1); 1492 if (n >= UHCI_RESET_TIMEOUT) 1493 printf("%s: controller did not reset\n", 1494 USBDEVNAME(sc->sc_bus.bdev)); 1495 } 1496 #endif 1497 1498 usbd_status 1499 uhci_run(uhci_softc_t *sc, int run) 1500 { 1501 int s, n, running; 1502 u_int16_t cmd; 1503 1504 run = run != 0; 1505 s = splusb(); 1506 DPRINTF(("uhci_run: setting run=%d\n", run)); 1507 cmd = UREAD2(sc, UHCI_CMD); 1508 if (run) 1509 cmd |= UHCI_CMD_RS; 1510 else 1511 cmd &= ~UHCI_CMD_RS; 1512 UHCICMD(sc, cmd); 1513 for(n = 0; n < 10; n++) { 1514 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1515 /* return when we've entered the state we want */ 1516 if (run == running) { 1517 splx(s); 1518 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1519 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1520 return (USBD_NORMAL_COMPLETION); 1521 } 1522 usb_delay_ms(&sc->sc_bus, 1); 1523 } 1524 splx(s); 1525 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1526 run ? "start" : "stop"); 1527 return (USBD_IOERROR); 1528 } 1529 1530 /* 1531 * Memory management routines. 1532 * uhci_alloc_std allocates TDs 1533 * uhci_alloc_sqh allocates QHs 1534 * These two routines do their own free list management, 1535 * partly for speed, partly because allocating DMAable memory 1536 * has page size granularaity so much memory would be wasted if 1537 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1538 */ 1539 1540 uhci_soft_td_t * 1541 uhci_alloc_std(uhci_softc_t *sc) 1542 { 1543 uhci_soft_td_t *std; 1544 usbd_status err; 1545 int i, offs; 1546 usb_dma_t dma; 1547 1548 if (sc->sc_freetds == NULL) { 1549 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1550 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1551 UHCI_TD_ALIGN, &dma); 1552 if (err) 1553 return (0); 1554 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1555 offs = i * UHCI_STD_SIZE; 1556 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1557 std->physaddr = DMAADDR(&dma) + offs; 1558 std->link.std = sc->sc_freetds; 1559 sc->sc_freetds = std; 1560 } 1561 } 1562 std = sc->sc_freetds; 1563 sc->sc_freetds = std->link.std; 1564 memset(&std->td, 0, sizeof(uhci_td_t)); 1565 return std; 1566 } 1567 1568 void 1569 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1570 { 1571 #ifdef DIAGNOSTIC 1572 #define TD_IS_FREE 0x12345678 1573 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1574 printf("uhci_free_std: freeing free TD %p\n", std); 1575 return; 1576 } 1577 std->td.td_token = htole32(TD_IS_FREE); 1578 #endif 1579 std->link.std = sc->sc_freetds; 1580 sc->sc_freetds = std; 1581 } 1582 1583 uhci_soft_qh_t * 1584 uhci_alloc_sqh(uhci_softc_t *sc) 1585 { 1586 uhci_soft_qh_t *sqh; 1587 usbd_status err; 1588 int i, offs; 1589 usb_dma_t dma; 1590 1591 if (sc->sc_freeqhs == NULL) { 1592 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1593 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1594 UHCI_QH_ALIGN, &dma); 1595 if (err) 1596 return (0); 1597 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1598 offs = i * UHCI_SQH_SIZE; 1599 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1600 sqh->physaddr = DMAADDR(&dma) + offs; 1601 sqh->hlink = sc->sc_freeqhs; 1602 sc->sc_freeqhs = sqh; 1603 } 1604 } 1605 sqh = sc->sc_freeqhs; 1606 sc->sc_freeqhs = sqh->hlink; 1607 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1608 return (sqh); 1609 } 1610 1611 void 1612 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1613 { 1614 sqh->hlink = sc->sc_freeqhs; 1615 sc->sc_freeqhs = sqh; 1616 } 1617 1618 void 1619 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1620 uhci_soft_td_t *stdend) 1621 { 1622 uhci_soft_td_t *p; 1623 1624 for (; std != stdend; std = p) { 1625 p = std->link.std; 1626 uhci_free_std(sc, std); 1627 } 1628 } 1629 1630 usbd_status 1631 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1632 int rd, u_int16_t flags, usb_dma_t *dma, 1633 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1634 { 1635 uhci_soft_td_t *p, *lastp; 1636 uhci_physaddr_t lastlink; 1637 int i, ntd, l, tog, maxp; 1638 u_int32_t status; 1639 int addr = upipe->pipe.device->address; 1640 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1641 1642 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1643 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1644 upipe->pipe.device->lowspeed, flags)); 1645 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1646 if (maxp == 0) { 1647 printf("uhci_alloc_std_chain: maxp=0\n"); 1648 return (USBD_INVAL); 1649 } 1650 ntd = (len + maxp - 1) / maxp; 1651 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1652 ntd++; 1653 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1654 if (ntd == 0) { 1655 *sp = *ep = 0; 1656 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1657 return (USBD_NORMAL_COMPLETION); 1658 } 1659 tog = upipe->nexttoggle; 1660 if (ntd % 2 == 0) 1661 tog ^= 1; 1662 upipe->nexttoggle = tog ^ 1; 1663 lastp = NULL; 1664 lastlink = UHCI_PTR_T; 1665 ntd--; 1666 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1667 if (upipe->pipe.device->lowspeed) 1668 status |= UHCI_TD_LS; 1669 if (flags & USBD_SHORT_XFER_OK) 1670 status |= UHCI_TD_SPD; 1671 for (i = ntd; i >= 0; i--) { 1672 p = uhci_alloc_std(sc); 1673 if (p == NULL) { 1674 uhci_free_std_chain(sc, lastp, 0); 1675 return (USBD_NOMEM); 1676 } 1677 p->link.std = lastp; 1678 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1679 lastp = p; 1680 lastlink = p->physaddr; 1681 p->td.td_status = htole32(status); 1682 if (i == ntd) { 1683 /* last TD */ 1684 l = len % maxp; 1685 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1686 l = maxp; 1687 *ep = p; 1688 } else 1689 l = maxp; 1690 p->td.td_token = 1691 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1692 UHCI_TD_OUT(l, endpt, addr, tog)); 1693 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1694 tog ^= 1; 1695 } 1696 *sp = lastp; 1697 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1698 upipe->nexttoggle)); 1699 return (USBD_NORMAL_COMPLETION); 1700 } 1701 1702 void 1703 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1704 { 1705 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1706 upipe->nexttoggle = 0; 1707 } 1708 1709 void 1710 uhci_noop(usbd_pipe_handle pipe) 1711 { 1712 } 1713 1714 usbd_status 1715 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1716 { 1717 usbd_status err; 1718 1719 /* Insert last in queue. */ 1720 err = usb_insert_transfer(xfer); 1721 if (err) 1722 return (err); 1723 1724 /* 1725 * Pipe isn't running (otherwise err would be USBD_INPROG), 1726 * so start it first. 1727 */ 1728 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1729 } 1730 1731 usbd_status 1732 uhci_device_bulk_start(usbd_xfer_handle xfer) 1733 { 1734 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1735 usbd_device_handle dev = upipe->pipe.device; 1736 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1737 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1738 uhci_soft_td_t *data, *dataend; 1739 uhci_soft_qh_t *sqh; 1740 usbd_status err; 1741 int len, isread, endpt; 1742 int s; 1743 1744 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1745 xfer, xfer->length, xfer->flags)); 1746 1747 if (sc->sc_dying) 1748 return (USBD_IOERROR); 1749 1750 #ifdef DIAGNOSTIC 1751 if (xfer->rqflags & URQ_REQUEST) 1752 panic("uhci_device_bulk_transfer: a request\n"); 1753 #endif 1754 1755 len = xfer->length; 1756 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1757 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1758 sqh = upipe->u.bulk.sqh; 1759 1760 upipe->u.bulk.isread = isread; 1761 upipe->u.bulk.length = len; 1762 1763 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1764 &xfer->dmabuf, &data, &dataend); 1765 if (err) 1766 return (err); 1767 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1768 1769 #ifdef UHCI_DEBUG 1770 if (uhcidebug > 8) { 1771 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1772 uhci_dump_tds(data); 1773 } 1774 #endif 1775 1776 /* Set up interrupt info. */ 1777 ii->xfer = xfer; 1778 ii->stdstart = data; 1779 ii->stdend = dataend; 1780 #ifdef DIAGNOSTIC 1781 if (!ii->isdone) { 1782 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1783 } 1784 ii->isdone = 0; 1785 #endif 1786 1787 sqh->elink = data; 1788 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1789 1790 s = splusb(); 1791 uhci_add_bulk(sc, sqh); 1792 uhci_add_intr_info(sc, ii); 1793 1794 if (xfer->timeout && !sc->sc_bus.use_polling) { 1795 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1796 uhci_timeout, ii); 1797 } 1798 xfer->status = USBD_IN_PROGRESS; 1799 splx(s); 1800 1801 #ifdef UHCI_DEBUG 1802 if (uhcidebug > 10) { 1803 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1804 uhci_dump_tds(data); 1805 } 1806 #endif 1807 1808 if (sc->sc_bus.use_polling) 1809 uhci_waitintr(sc, xfer); 1810 1811 return (USBD_IN_PROGRESS); 1812 } 1813 1814 /* Abort a device bulk request. */ 1815 void 1816 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1817 { 1818 DPRINTF(("uhci_device_bulk_abort:\n")); 1819 uhci_abort_xfer(xfer, USBD_CANCELLED); 1820 } 1821 1822 /* 1823 * XXX This way of aborting is neither safe, nor good. 1824 * But it will have to do until I figure out what to do. 1825 * I apologize for the delay(). 1826 */ 1827 void 1828 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1829 { 1830 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1831 uhci_soft_td_t *std; 1832 int s; 1833 1834 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1835 1836 s = splusb(); 1837 1838 /* Transfer is already done. */ 1839 if (xfer->status != USBD_NOT_STARTED && 1840 xfer->status != USBD_IN_PROGRESS) { 1841 splx(s); 1842 return; 1843 } 1844 1845 /* Make interrupt routine ignore it, */ 1846 xfer->status = status; 1847 1848 /* don't timeout, */ 1849 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1850 1851 /* make hardware ignore it, */ 1852 for (std = ii->stdstart; std != NULL; std = std->link.std) 1853 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1854 1855 xfer->hcpriv = ii; 1856 1857 splx(s); 1858 1859 delay(1000); 1860 1861 s = splusb(); 1862 #ifdef DIAGNOSTIC 1863 ii->isdone = 1; 1864 #endif 1865 usb_transfer_complete(xfer); 1866 splx(s); 1867 } 1868 1869 /* Close a device bulk pipe. */ 1870 void 1871 uhci_device_bulk_close(usbd_pipe_handle pipe) 1872 { 1873 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1874 usbd_device_handle dev = upipe->pipe.device; 1875 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1876 1877 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1878 } 1879 1880 usbd_status 1881 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1882 { 1883 usbd_status err; 1884 1885 /* Insert last in queue. */ 1886 err = usb_insert_transfer(xfer); 1887 if (err) 1888 return (err); 1889 1890 /* 1891 * Pipe isn't running (otherwise err would be USBD_INPROG), 1892 * so start it first. 1893 */ 1894 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1895 } 1896 1897 usbd_status 1898 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1899 { 1900 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1901 usbd_status err; 1902 1903 if (sc->sc_dying) 1904 return (USBD_IOERROR); 1905 1906 #ifdef DIAGNOSTIC 1907 if (!(xfer->rqflags & URQ_REQUEST)) 1908 panic("uhci_device_ctrl_transfer: not a request\n"); 1909 #endif 1910 1911 err = uhci_device_request(xfer); 1912 if (err) 1913 return (err); 1914 1915 if (sc->sc_bus.use_polling) 1916 uhci_waitintr(sc, xfer); 1917 return (USBD_IN_PROGRESS); 1918 } 1919 1920 usbd_status 1921 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1922 { 1923 usbd_status err; 1924 1925 /* Insert last in queue. */ 1926 err = usb_insert_transfer(xfer); 1927 if (err) 1928 return (err); 1929 1930 /* 1931 * Pipe isn't running (otherwise err would be USBD_INPROG), 1932 * so start it first. 1933 */ 1934 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1935 } 1936 1937 usbd_status 1938 uhci_device_intr_start(usbd_xfer_handle xfer) 1939 { 1940 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1941 usbd_device_handle dev = upipe->pipe.device; 1942 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1943 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1944 uhci_soft_td_t *data, *dataend; 1945 uhci_soft_qh_t *sqh; 1946 usbd_status err; 1947 int i, s; 1948 1949 if (sc->sc_dying) 1950 return (USBD_IOERROR); 1951 1952 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1953 xfer, xfer->length, xfer->flags)); 1954 1955 #ifdef DIAGNOSTIC 1956 if (xfer->rqflags & URQ_REQUEST) 1957 panic("uhci_device_intr_transfer: a request\n"); 1958 #endif 1959 1960 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1961 &xfer->dmabuf, &data, &dataend); 1962 if (err) 1963 return (err); 1964 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1965 1966 #ifdef UHCI_DEBUG 1967 if (uhcidebug > 10) { 1968 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1969 uhci_dump_tds(data); 1970 uhci_dump_qh(upipe->u.intr.qhs[0]); 1971 } 1972 #endif 1973 1974 s = splusb(); 1975 /* Set up interrupt info. */ 1976 ii->xfer = xfer; 1977 ii->stdstart = data; 1978 ii->stdend = dataend; 1979 #ifdef DIAGNOSTIC 1980 if (!ii->isdone) { 1981 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1982 } 1983 ii->isdone = 0; 1984 #endif 1985 1986 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1987 upipe->u.intr.qhs[0])); 1988 for (i = 0; i < upipe->u.intr.npoll; i++) { 1989 sqh = upipe->u.intr.qhs[i]; 1990 sqh->elink = data; 1991 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1992 } 1993 uhci_add_intr_info(sc, ii); 1994 xfer->status = USBD_IN_PROGRESS; 1995 splx(s); 1996 1997 #ifdef UHCI_DEBUG 1998 if (uhcidebug > 10) { 1999 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2000 uhci_dump_tds(data); 2001 uhci_dump_qh(upipe->u.intr.qhs[0]); 2002 } 2003 #endif 2004 2005 return (USBD_IN_PROGRESS); 2006 } 2007 2008 /* Abort a device control request. */ 2009 void 2010 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2011 { 2012 DPRINTF(("uhci_device_ctrl_abort:\n")); 2013 uhci_abort_xfer(xfer, USBD_CANCELLED); 2014 } 2015 2016 /* Close a device control pipe. */ 2017 void 2018 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2019 { 2020 } 2021 2022 /* Abort a device interrupt request. */ 2023 void 2024 uhci_device_intr_abort(usbd_xfer_handle xfer) 2025 { 2026 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2027 if (xfer->pipe->intrxfer == xfer) { 2028 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2029 xfer->pipe->intrxfer = 0; 2030 } 2031 uhci_abort_xfer(xfer, USBD_CANCELLED); 2032 } 2033 2034 /* Close a device interrupt pipe. */ 2035 void 2036 uhci_device_intr_close(usbd_pipe_handle pipe) 2037 { 2038 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2039 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2040 int i, npoll; 2041 int s; 2042 2043 /* Unlink descriptors from controller data structures. */ 2044 npoll = upipe->u.intr.npoll; 2045 s = splusb(); 2046 for (i = 0; i < npoll; i++) 2047 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2048 splx(s); 2049 2050 /* 2051 * We now have to wait for any activity on the physical 2052 * descriptors to stop. 2053 */ 2054 usb_delay_ms(&sc->sc_bus, 2); 2055 2056 for(i = 0; i < npoll; i++) 2057 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2058 free(upipe->u.intr.qhs, M_USBHC); 2059 2060 /* XXX free other resources */ 2061 } 2062 2063 usbd_status 2064 uhci_device_request(usbd_xfer_handle xfer) 2065 { 2066 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2067 usb_device_request_t *req = &xfer->request; 2068 usbd_device_handle dev = upipe->pipe.device; 2069 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2070 int addr = dev->address; 2071 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2072 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2073 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2074 uhci_soft_qh_t *sqh; 2075 int len; 2076 u_int32_t ls; 2077 usbd_status err; 2078 int isread; 2079 int s; 2080 2081 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2082 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2083 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2084 UGETW(req->wIndex), UGETW(req->wLength), 2085 addr, endpt)); 2086 2087 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2088 isread = req->bmRequestType & UT_READ; 2089 len = UGETW(req->wLength); 2090 2091 setup = upipe->u.ctl.setup; 2092 stat = upipe->u.ctl.stat; 2093 sqh = upipe->u.ctl.sqh; 2094 2095 /* Set up data transaction */ 2096 if (len != 0) { 2097 upipe->nexttoggle = 1; 2098 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2099 &xfer->dmabuf, &data, &dataend); 2100 if (err) 2101 return (err); 2102 next = data; 2103 dataend->link.std = stat; 2104 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2105 } else { 2106 next = stat; 2107 } 2108 upipe->u.ctl.length = len; 2109 2110 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2111 2112 setup->link.std = next; 2113 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2114 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2115 UHCI_TD_ACTIVE); 2116 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2117 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2118 2119 stat->link.std = NULL; 2120 stat->td.td_link = htole32(UHCI_PTR_T); 2121 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2122 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2123 stat->td.td_token = 2124 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2125 UHCI_TD_IN (0, endpt, addr, 1)); 2126 stat->td.td_buffer = htole32(0); 2127 2128 #ifdef UHCI_DEBUG 2129 if (uhcidebug > 10) { 2130 DPRINTF(("uhci_device_request: before transfer\n")); 2131 uhci_dump_tds(setup); 2132 } 2133 #endif 2134 2135 /* Set up interrupt info. */ 2136 ii->xfer = xfer; 2137 ii->stdstart = setup; 2138 ii->stdend = stat; 2139 #ifdef DIAGNOSTIC 2140 if (!ii->isdone) { 2141 printf("uhci_device_request: not done, ii=%p\n", ii); 2142 } 2143 ii->isdone = 0; 2144 #endif 2145 2146 sqh->elink = setup; 2147 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2148 2149 s = splusb(); 2150 if (dev->lowspeed) 2151 uhci_add_ls_ctrl(sc, sqh); 2152 else 2153 uhci_add_hs_ctrl(sc, sqh); 2154 uhci_add_intr_info(sc, ii); 2155 #ifdef UHCI_DEBUG 2156 if (uhcidebug > 12) { 2157 uhci_soft_td_t *std; 2158 uhci_soft_qh_t *xqh; 2159 uhci_soft_qh_t *sxqh; 2160 int maxqh = 0; 2161 uhci_physaddr_t link; 2162 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2163 for (std = sc->sc_vframes[0].htd, link = 0; 2164 (link & UHCI_PTR_QH) == 0; 2165 std = std->link.std) { 2166 link = le32toh(std->td.td_link); 2167 uhci_dump_td(std); 2168 } 2169 sxqh = (uhci_soft_qh_t *)std; 2170 uhci_dump_qh(sxqh); 2171 for (xqh = sxqh; 2172 xqh != NULL; 2173 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2174 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2175 uhci_dump_qh(xqh); 2176 } 2177 DPRINTF(("Enqueued QH:\n")); 2178 uhci_dump_qh(sqh); 2179 uhci_dump_tds(sqh->elink); 2180 } 2181 #endif 2182 if (xfer->timeout && !sc->sc_bus.use_polling) { 2183 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2184 uhci_timeout, ii); 2185 } 2186 xfer->status = USBD_IN_PROGRESS; 2187 splx(s); 2188 2189 return (USBD_NORMAL_COMPLETION); 2190 } 2191 2192 usbd_status 2193 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2194 { 2195 usbd_status err; 2196 2197 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2198 2199 /* Put it on our queue, */ 2200 err = usb_insert_transfer(xfer); 2201 2202 /* bail out on error, */ 2203 if (err && err != USBD_IN_PROGRESS) 2204 return (err); 2205 2206 /* XXX should check inuse here */ 2207 2208 /* insert into schedule, */ 2209 uhci_device_isoc_enter(xfer); 2210 2211 /* and start if the pipe wasn't running */ 2212 if (!err) 2213 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2214 2215 return (err); 2216 } 2217 2218 void 2219 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2220 { 2221 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2222 usbd_device_handle dev = upipe->pipe.device; 2223 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2224 struct iso *iso = &upipe->u.iso; 2225 uhci_soft_td_t *std; 2226 u_int32_t buf, len, status; 2227 int s, i, next, nframes; 2228 2229 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2230 "nframes=%d\n", 2231 iso->inuse, iso->next, xfer, xfer->nframes)); 2232 2233 if (sc->sc_dying) 2234 return; 2235 2236 if (xfer->status == USBD_IN_PROGRESS) { 2237 /* This request has already been entered into the frame list */ 2238 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2239 /* XXX */ 2240 } 2241 2242 #ifdef DIAGNOSTIC 2243 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2244 printf("uhci_device_isoc_enter: overflow!\n"); 2245 #endif 2246 2247 next = iso->next; 2248 if (next == -1) { 2249 /* Not in use yet, schedule it a few frames ahead. */ 2250 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2251 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2252 } 2253 2254 xfer->status = USBD_IN_PROGRESS; 2255 UXFER(xfer)->curframe = next; 2256 2257 buf = DMAADDR(&xfer->dmabuf); 2258 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2259 UHCI_TD_ACTIVE | 2260 UHCI_TD_IOS); 2261 nframes = xfer->nframes; 2262 s = splusb(); 2263 for (i = 0; i < nframes; i++) { 2264 std = iso->stds[next]; 2265 if (++next >= UHCI_VFRAMELIST_COUNT) 2266 next = 0; 2267 len = xfer->frlengths[i]; 2268 std->td.td_buffer = htole32(buf); 2269 if (i == nframes - 1) 2270 status |= UHCI_TD_IOC; 2271 std->td.td_status = htole32(status); 2272 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2273 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2274 #ifdef UHCI_DEBUG 2275 if (uhcidebug > 5) { 2276 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2277 uhci_dump_td(std); 2278 } 2279 #endif 2280 buf += len; 2281 } 2282 iso->next = next; 2283 iso->inuse += xfer->nframes; 2284 2285 splx(s); 2286 } 2287 2288 usbd_status 2289 uhci_device_isoc_start(usbd_xfer_handle xfer) 2290 { 2291 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2292 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2293 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2294 uhci_soft_td_t *end; 2295 int s, i; 2296 2297 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2298 2299 if (sc->sc_dying) 2300 return (USBD_IOERROR); 2301 2302 #ifdef DIAGNOSTIC 2303 if (xfer->status != USBD_IN_PROGRESS) 2304 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2305 #endif 2306 2307 /* Find the last TD */ 2308 i = UXFER(xfer)->curframe + xfer->nframes; 2309 if (i >= UHCI_VFRAMELIST_COUNT) 2310 i -= UHCI_VFRAMELIST_COUNT; 2311 end = upipe->u.iso.stds[i]; 2312 2313 #ifdef DIAGNOSTIC 2314 if (end == NULL) { 2315 printf("uhci_device_isoc_start: end == NULL\n"); 2316 return (USBD_INVAL); 2317 } 2318 #endif 2319 2320 s = splusb(); 2321 2322 /* Set up interrupt info. */ 2323 ii->xfer = xfer; 2324 ii->stdstart = end; 2325 ii->stdend = end; 2326 #ifdef DIAGNOSTIC 2327 if (!ii->isdone) 2328 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2329 ii->isdone = 0; 2330 #endif 2331 uhci_add_intr_info(sc, ii); 2332 2333 splx(s); 2334 2335 return (USBD_IN_PROGRESS); 2336 } 2337 2338 void 2339 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2340 { 2341 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2342 uhci_soft_td_t **stds = upipe->u.iso.stds; 2343 uhci_soft_td_t *std; 2344 int i, n, s, nframes, maxlen, len; 2345 2346 s = splusb(); 2347 2348 /* Transfer is already done. */ 2349 if (xfer->status != USBD_NOT_STARTED && 2350 xfer->status != USBD_IN_PROGRESS) { 2351 splx(s); 2352 return; 2353 } 2354 2355 /* Give xfer the requested abort code. */ 2356 xfer->status = USBD_CANCELLED; 2357 2358 /* make hardware ignore it, */ 2359 nframes = xfer->nframes; 2360 n = UXFER(xfer)->curframe; 2361 maxlen = 0; 2362 for (i = 0; i < nframes; i++) { 2363 std = stds[n]; 2364 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2365 len = UHCI_TD_GET_MAXLEN(std->td.td_token); 2366 if (len > maxlen) 2367 maxlen = len; 2368 if (++n >= UHCI_VFRAMELIST_COUNT) 2369 n = 0; 2370 } 2371 2372 /* and wait until we are sure the hardware has finished. */ 2373 delay(maxlen); 2374 2375 #ifdef DIAGNOSTIC 2376 UXFER(xfer)->iinfo.isdone = 1; 2377 #endif 2378 /* Run callback and remove from interrupt list. */ 2379 usb_transfer_complete(xfer); 2380 2381 splx(s); 2382 } 2383 2384 void 2385 uhci_device_isoc_close(usbd_pipe_handle pipe) 2386 { 2387 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2388 usbd_device_handle dev = upipe->pipe.device; 2389 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2390 uhci_soft_td_t *std, *vstd; 2391 struct iso *iso; 2392 int i, s; 2393 2394 /* 2395 * Make sure all TDs are marked as inactive. 2396 * Wait for completion. 2397 * Unschedule. 2398 * Deallocate. 2399 */ 2400 iso = &upipe->u.iso; 2401 2402 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2403 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2404 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2405 2406 s = splusb(); 2407 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2408 std = iso->stds[i]; 2409 for (vstd = sc->sc_vframes[i].htd; 2410 vstd != NULL && vstd->link.std != std; 2411 vstd = vstd->link.std) 2412 ; 2413 if (vstd == NULL) { 2414 /*panic*/ 2415 printf("uhci_device_isoc_close: %p not found\n", std); 2416 splx(s); 2417 return; 2418 } 2419 vstd->link = std->link; 2420 vstd->td.td_link = std->td.td_link; 2421 uhci_free_std(sc, std); 2422 } 2423 splx(s); 2424 2425 free(iso->stds, M_USBHC); 2426 } 2427 2428 usbd_status 2429 uhci_setup_isoc(usbd_pipe_handle pipe) 2430 { 2431 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2432 usbd_device_handle dev = upipe->pipe.device; 2433 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2434 int addr = upipe->pipe.device->address; 2435 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2436 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2437 uhci_soft_td_t *std, *vstd; 2438 u_int32_t token; 2439 struct iso *iso; 2440 int i, s; 2441 2442 iso = &upipe->u.iso; 2443 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2444 M_USBHC, M_WAITOK); 2445 2446 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2447 UHCI_TD_OUT(0, endpt, addr, 0); 2448 2449 /* Allocate the TDs and mark as inactive; */ 2450 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2451 std = uhci_alloc_std(sc); 2452 if (std == 0) 2453 goto bad; 2454 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2455 std->td.td_token = htole32(token); 2456 iso->stds[i] = std; 2457 } 2458 2459 /* Insert TDs into schedule. */ 2460 s = splusb(); 2461 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2462 std = iso->stds[i]; 2463 vstd = sc->sc_vframes[i].htd; 2464 std->link = vstd->link; 2465 std->td.td_link = vstd->td.td_link; 2466 vstd->link.std = std; 2467 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2468 } 2469 splx(s); 2470 2471 iso->next = -1; 2472 iso->inuse = 0; 2473 2474 return (USBD_NORMAL_COMPLETION); 2475 2476 bad: 2477 while (--i >= 0) 2478 uhci_free_std(sc, iso->stds[i]); 2479 free(iso->stds, M_USBHC); 2480 return (USBD_NOMEM); 2481 } 2482 2483 void 2484 uhci_device_isoc_done(usbd_xfer_handle xfer) 2485 { 2486 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2487 2488 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2489 2490 if (ii->xfer != xfer) 2491 /* Not on interrupt list, ignore it. */ 2492 return; 2493 2494 #ifdef DIAGNOSTIC 2495 if (xfer->busy_free != XFER_BUSY) { 2496 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2497 xfer, xfer->busy_free); 2498 return; 2499 } 2500 2501 if (ii->stdend == NULL) { 2502 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2503 #ifdef UHCI_DEBUG 2504 uhci_dump_ii(ii); 2505 #endif 2506 return; 2507 } 2508 #endif 2509 2510 /* Turn off the interrupt since it is active even if the TD is not. */ 2511 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2512 2513 uhci_del_intr_info(ii); /* remove from active list */ 2514 } 2515 2516 void 2517 uhci_device_intr_done(usbd_xfer_handle xfer) 2518 { 2519 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2520 uhci_softc_t *sc = ii->sc; 2521 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2522 uhci_soft_qh_t *sqh; 2523 int i, npoll; 2524 2525 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2526 2527 npoll = upipe->u.intr.npoll; 2528 for(i = 0; i < npoll; i++) { 2529 sqh = upipe->u.intr.qhs[i]; 2530 sqh->elink = NULL; 2531 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2532 } 2533 uhci_free_std_chain(sc, ii->stdstart, 0); 2534 2535 /* XXX Wasteful. */ 2536 if (xfer->pipe->repeat) { 2537 uhci_soft_td_t *data, *dataend; 2538 2539 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2540 2541 /* This alloc cannot fail since we freed the chain above. */ 2542 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2543 &xfer->dmabuf, &data, &dataend); 2544 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2545 2546 #ifdef UHCI_DEBUG 2547 if (uhcidebug > 10) { 2548 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2549 uhci_dump_tds(data); 2550 uhci_dump_qh(upipe->u.intr.qhs[0]); 2551 } 2552 #endif 2553 2554 ii->stdstart = data; 2555 ii->stdend = dataend; 2556 #ifdef DIAGNOSTIC 2557 if (!ii->isdone) { 2558 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2559 } 2560 ii->isdone = 0; 2561 #endif 2562 for (i = 0; i < npoll; i++) { 2563 sqh = upipe->u.intr.qhs[i]; 2564 sqh->elink = data; 2565 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2566 } 2567 xfer->status = USBD_IN_PROGRESS; 2568 /* The ii is already on the examined list, just leave it. */ 2569 } else { 2570 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2571 uhci_del_intr_info(ii); 2572 } 2573 } 2574 2575 /* Deallocate request data structures */ 2576 void 2577 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2578 { 2579 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2580 uhci_softc_t *sc = ii->sc; 2581 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2582 2583 #ifdef DIAGNOSTIC 2584 if (!(xfer->rqflags & URQ_REQUEST)) 2585 panic("uhci_ctrl_done: not a request\n"); 2586 #endif 2587 2588 uhci_del_intr_info(ii); /* remove from active list */ 2589 2590 if (upipe->pipe.device->lowspeed) 2591 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2592 else 2593 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2594 2595 if (upipe->u.ctl.length != 0) 2596 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2597 2598 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2599 } 2600 2601 /* Deallocate request data structures */ 2602 void 2603 uhci_device_bulk_done(usbd_xfer_handle xfer) 2604 { 2605 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2606 uhci_softc_t *sc = ii->sc; 2607 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2608 2609 uhci_del_intr_info(ii); /* remove from active list */ 2610 2611 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2612 2613 uhci_free_std_chain(sc, ii->stdstart, 0); 2614 2615 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2616 } 2617 2618 /* Add interrupt QH, called with vflock. */ 2619 void 2620 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2621 { 2622 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2623 uhci_soft_qh_t *eqh; 2624 2625 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2626 2627 eqh = vf->eqh; 2628 sqh->hlink = eqh->hlink; 2629 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2630 eqh->hlink = sqh; 2631 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2632 vf->eqh = sqh; 2633 vf->bandwidth++; 2634 } 2635 2636 /* Remove interrupt QH. */ 2637 void 2638 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2639 { 2640 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2641 uhci_soft_qh_t *pqh; 2642 2643 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2644 2645 /* See comment in uhci_remove_ctrl() */ 2646 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2647 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2648 delay(UHCI_QH_REMOVE_DELAY); 2649 } 2650 2651 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2652 pqh->hlink = sqh->hlink; 2653 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2654 delay(UHCI_QH_REMOVE_DELAY); 2655 if (vf->eqh == sqh) 2656 vf->eqh = pqh; 2657 vf->bandwidth--; 2658 } 2659 2660 usbd_status 2661 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2662 { 2663 uhci_soft_qh_t *sqh; 2664 int i, npoll, s; 2665 u_int bestbw, bw, bestoffs, offs; 2666 2667 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2668 if (ival == 0) { 2669 printf("uhci_setintr: 0 interval\n"); 2670 return (USBD_INVAL); 2671 } 2672 2673 if (ival > UHCI_VFRAMELIST_COUNT) 2674 ival = UHCI_VFRAMELIST_COUNT; 2675 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2676 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2677 2678 upipe->u.intr.npoll = npoll; 2679 upipe->u.intr.qhs = 2680 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2681 2682 /* 2683 * Figure out which offset in the schedule that has most 2684 * bandwidth left over. 2685 */ 2686 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2687 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2688 for (bw = i = 0; i < npoll; i++) 2689 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2690 if (bw < bestbw) { 2691 bestbw = bw; 2692 bestoffs = offs; 2693 } 2694 } 2695 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2696 2697 for(i = 0; i < npoll; i++) { 2698 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2699 sqh->elink = NULL; 2700 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2701 sqh->pos = MOD(i * ival + bestoffs); 2702 } 2703 #undef MOD 2704 2705 s = splusb(); 2706 /* Enter QHs into the controller data structures. */ 2707 for(i = 0; i < npoll; i++) 2708 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2709 splx(s); 2710 2711 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2712 return (USBD_NORMAL_COMPLETION); 2713 } 2714 2715 /* Open a new pipe. */ 2716 usbd_status 2717 uhci_open(usbd_pipe_handle pipe) 2718 { 2719 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2720 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2721 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2722 usbd_status err; 2723 int ival; 2724 2725 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2726 pipe, pipe->device->address, 2727 ed->bEndpointAddress, sc->sc_addr)); 2728 2729 upipe->aborting = 0; 2730 upipe->nexttoggle = 0; 2731 2732 if (pipe->device->address == sc->sc_addr) { 2733 switch (ed->bEndpointAddress) { 2734 case USB_CONTROL_ENDPOINT: 2735 pipe->methods = &uhci_root_ctrl_methods; 2736 break; 2737 case UE_DIR_IN | UHCI_INTR_ENDPT: 2738 pipe->methods = &uhci_root_intr_methods; 2739 break; 2740 default: 2741 return (USBD_INVAL); 2742 } 2743 } else { 2744 switch (ed->bmAttributes & UE_XFERTYPE) { 2745 case UE_CONTROL: 2746 pipe->methods = &uhci_device_ctrl_methods; 2747 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2748 if (upipe->u.ctl.sqh == NULL) 2749 goto bad; 2750 upipe->u.ctl.setup = uhci_alloc_std(sc); 2751 if (upipe->u.ctl.setup == NULL) { 2752 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2753 goto bad; 2754 } 2755 upipe->u.ctl.stat = uhci_alloc_std(sc); 2756 if (upipe->u.ctl.stat == NULL) { 2757 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2758 uhci_free_std(sc, upipe->u.ctl.setup); 2759 goto bad; 2760 } 2761 err = usb_allocmem(&sc->sc_bus, 2762 sizeof(usb_device_request_t), 2763 0, &upipe->u.ctl.reqdma); 2764 if (err) { 2765 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2766 uhci_free_std(sc, upipe->u.ctl.setup); 2767 uhci_free_std(sc, upipe->u.ctl.stat); 2768 goto bad; 2769 } 2770 break; 2771 case UE_INTERRUPT: 2772 pipe->methods = &uhci_device_intr_methods; 2773 ival = pipe->interval; 2774 if (ival == USBD_DEFAULT_INTERVAL) 2775 ival = ed->bInterval; 2776 return (uhci_device_setintr(sc, upipe, ival)); 2777 case UE_ISOCHRONOUS: 2778 pipe->methods = &uhci_device_isoc_methods; 2779 return (uhci_setup_isoc(pipe)); 2780 case UE_BULK: 2781 pipe->methods = &uhci_device_bulk_methods; 2782 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2783 if (upipe->u.bulk.sqh == NULL) 2784 goto bad; 2785 break; 2786 } 2787 } 2788 return (USBD_NORMAL_COMPLETION); 2789 2790 bad: 2791 return (USBD_NOMEM); 2792 } 2793 2794 /* 2795 * Data structures and routines to emulate the root hub. 2796 */ 2797 usb_device_descriptor_t uhci_devd = { 2798 USB_DEVICE_DESCRIPTOR_SIZE, 2799 UDESC_DEVICE, /* type */ 2800 {0x00, 0x01}, /* USB version */ 2801 UDCLASS_HUB, /* class */ 2802 UDSUBCLASS_HUB, /* subclass */ 2803 0, /* protocol */ 2804 64, /* max packet */ 2805 {0},{0},{0x00,0x01}, /* device id */ 2806 1,2,0, /* string indicies */ 2807 1 /* # of configurations */ 2808 }; 2809 2810 usb_config_descriptor_t uhci_confd = { 2811 USB_CONFIG_DESCRIPTOR_SIZE, 2812 UDESC_CONFIG, 2813 {USB_CONFIG_DESCRIPTOR_SIZE + 2814 USB_INTERFACE_DESCRIPTOR_SIZE + 2815 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2816 1, 2817 1, 2818 0, 2819 UC_SELF_POWERED, 2820 0 /* max power */ 2821 }; 2822 2823 usb_interface_descriptor_t uhci_ifcd = { 2824 USB_INTERFACE_DESCRIPTOR_SIZE, 2825 UDESC_INTERFACE, 2826 0, 2827 0, 2828 1, 2829 UICLASS_HUB, 2830 UISUBCLASS_HUB, 2831 0, 2832 0 2833 }; 2834 2835 usb_endpoint_descriptor_t uhci_endpd = { 2836 USB_ENDPOINT_DESCRIPTOR_SIZE, 2837 UDESC_ENDPOINT, 2838 UE_DIR_IN | UHCI_INTR_ENDPT, 2839 UE_INTERRUPT, 2840 {8}, 2841 255 2842 }; 2843 2844 usb_hub_descriptor_t uhci_hubd_piix = { 2845 USB_HUB_DESCRIPTOR_SIZE, 2846 UDESC_HUB, 2847 2, 2848 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2849 50, /* power on to power good */ 2850 0, 2851 { 0x00 }, /* both ports are removable */ 2852 }; 2853 2854 int 2855 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2856 { 2857 int i; 2858 2859 if (l == 0) 2860 return (0); 2861 p->bLength = 2 * strlen(s) + 2; 2862 if (l == 1) 2863 return (1); 2864 p->bDescriptorType = UDESC_STRING; 2865 l -= 2; 2866 for (i = 0; s[i] && l > 1; i++, l -= 2) 2867 USETW2(p->bString[i], 0, s[i]); 2868 return (2*i+2); 2869 } 2870 2871 /* 2872 * Simulate a hardware hub by handling all the necessary requests. 2873 */ 2874 usbd_status 2875 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2876 { 2877 usbd_status err; 2878 2879 /* Insert last in queue. */ 2880 err = usb_insert_transfer(xfer); 2881 if (err) 2882 return (err); 2883 2884 /* 2885 * Pipe isn't running (otherwise err would be USBD_INPROG), 2886 * so start it first. 2887 */ 2888 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2889 } 2890 2891 usbd_status 2892 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2893 { 2894 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2895 usb_device_request_t *req; 2896 void *buf = NULL; 2897 int port, x; 2898 int s, len, value, index, status, change, l, totlen = 0; 2899 usb_port_status_t ps; 2900 usbd_status err; 2901 2902 if (sc->sc_dying) 2903 return (USBD_IOERROR); 2904 2905 #ifdef DIAGNOSTIC 2906 if (!(xfer->rqflags & URQ_REQUEST)) 2907 panic("uhci_root_ctrl_transfer: not a request\n"); 2908 #endif 2909 req = &xfer->request; 2910 2911 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2912 req->bmRequestType, req->bRequest)); 2913 2914 len = UGETW(req->wLength); 2915 value = UGETW(req->wValue); 2916 index = UGETW(req->wIndex); 2917 2918 if (len != 0) 2919 buf = KERNADDR(&xfer->dmabuf); 2920 2921 #define C(x,y) ((x) | ((y) << 8)) 2922 switch(C(req->bRequest, req->bmRequestType)) { 2923 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2924 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2925 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2926 /* 2927 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2928 * for the integrated root hub. 2929 */ 2930 break; 2931 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2932 if (len > 0) { 2933 *(u_int8_t *)buf = sc->sc_conf; 2934 totlen = 1; 2935 } 2936 break; 2937 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2938 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2939 switch(value >> 8) { 2940 case UDESC_DEVICE: 2941 if ((value & 0xff) != 0) { 2942 err = USBD_IOERROR; 2943 goto ret; 2944 } 2945 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2946 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2947 memcpy(buf, &uhci_devd, l); 2948 break; 2949 case UDESC_CONFIG: 2950 if ((value & 0xff) != 0) { 2951 err = USBD_IOERROR; 2952 goto ret; 2953 } 2954 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2955 memcpy(buf, &uhci_confd, l); 2956 buf = (char *)buf + l; 2957 len -= l; 2958 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2959 totlen += l; 2960 memcpy(buf, &uhci_ifcd, l); 2961 buf = (char *)buf + l; 2962 len -= l; 2963 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2964 totlen += l; 2965 memcpy(buf, &uhci_endpd, l); 2966 break; 2967 case UDESC_STRING: 2968 if (len == 0) 2969 break; 2970 *(u_int8_t *)buf = 0; 2971 totlen = 1; 2972 switch (value & 0xff) { 2973 case 1: /* Vendor */ 2974 totlen = uhci_str(buf, len, sc->sc_vendor); 2975 break; 2976 case 2: /* Product */ 2977 totlen = uhci_str(buf, len, "UHCI root hub"); 2978 break; 2979 } 2980 break; 2981 default: 2982 err = USBD_IOERROR; 2983 goto ret; 2984 } 2985 break; 2986 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2987 if (len > 0) { 2988 *(u_int8_t *)buf = 0; 2989 totlen = 1; 2990 } 2991 break; 2992 case C(UR_GET_STATUS, UT_READ_DEVICE): 2993 if (len > 1) { 2994 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2995 totlen = 2; 2996 } 2997 break; 2998 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2999 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3000 if (len > 1) { 3001 USETW(((usb_status_t *)buf)->wStatus, 0); 3002 totlen = 2; 3003 } 3004 break; 3005 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3006 if (value >= USB_MAX_DEVICES) { 3007 err = USBD_IOERROR; 3008 goto ret; 3009 } 3010 sc->sc_addr = value; 3011 break; 3012 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3013 if (value != 0 && value != 1) { 3014 err = USBD_IOERROR; 3015 goto ret; 3016 } 3017 sc->sc_conf = value; 3018 break; 3019 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3020 break; 3021 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3022 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3023 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3024 err = USBD_IOERROR; 3025 goto ret; 3026 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3027 break; 3028 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3029 break; 3030 /* Hub requests */ 3031 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3032 break; 3033 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3034 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3035 "port=%d feature=%d\n", 3036 index, value)); 3037 if (index == 1) 3038 port = UHCI_PORTSC1; 3039 else if (index == 2) 3040 port = UHCI_PORTSC2; 3041 else { 3042 err = USBD_IOERROR; 3043 goto ret; 3044 } 3045 switch(value) { 3046 case UHF_PORT_ENABLE: 3047 x = UREAD2(sc, port); 3048 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3049 break; 3050 case UHF_PORT_SUSPEND: 3051 x = UREAD2(sc, port); 3052 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3053 break; 3054 case UHF_PORT_RESET: 3055 x = UREAD2(sc, port); 3056 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3057 break; 3058 case UHF_C_PORT_CONNECTION: 3059 x = UREAD2(sc, port); 3060 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3061 break; 3062 case UHF_C_PORT_ENABLE: 3063 x = UREAD2(sc, port); 3064 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3065 break; 3066 case UHF_C_PORT_OVER_CURRENT: 3067 x = UREAD2(sc, port); 3068 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3069 break; 3070 case UHF_C_PORT_RESET: 3071 sc->sc_isreset = 0; 3072 err = USBD_NORMAL_COMPLETION; 3073 goto ret; 3074 case UHF_PORT_CONNECTION: 3075 case UHF_PORT_OVER_CURRENT: 3076 case UHF_PORT_POWER: 3077 case UHF_PORT_LOW_SPEED: 3078 case UHF_C_PORT_SUSPEND: 3079 default: 3080 err = USBD_IOERROR; 3081 goto ret; 3082 } 3083 break; 3084 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3085 if (index == 1) 3086 port = UHCI_PORTSC1; 3087 else if (index == 2) 3088 port = UHCI_PORTSC2; 3089 else { 3090 err = USBD_IOERROR; 3091 goto ret; 3092 } 3093 if (len > 0) { 3094 *(u_int8_t *)buf = 3095 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3096 UHCI_PORTSC_LS_SHIFT; 3097 totlen = 1; 3098 } 3099 break; 3100 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3101 if (value != 0) { 3102 err = USBD_IOERROR; 3103 goto ret; 3104 } 3105 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3106 totlen = l; 3107 memcpy(buf, &uhci_hubd_piix, l); 3108 break; 3109 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3110 if (len != 4) { 3111 err = USBD_IOERROR; 3112 goto ret; 3113 } 3114 memset(buf, 0, len); 3115 totlen = len; 3116 break; 3117 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3118 if (index == 1) 3119 port = UHCI_PORTSC1; 3120 else if (index == 2) 3121 port = UHCI_PORTSC2; 3122 else { 3123 err = USBD_IOERROR; 3124 goto ret; 3125 } 3126 if (len != 4) { 3127 err = USBD_IOERROR; 3128 goto ret; 3129 } 3130 x = UREAD2(sc, port); 3131 status = change = 0; 3132 if (x & UHCI_PORTSC_CCS ) 3133 status |= UPS_CURRENT_CONNECT_STATUS; 3134 if (x & UHCI_PORTSC_CSC ) 3135 change |= UPS_C_CONNECT_STATUS; 3136 if (x & UHCI_PORTSC_PE ) 3137 status |= UPS_PORT_ENABLED; 3138 if (x & UHCI_PORTSC_POEDC) 3139 change |= UPS_C_PORT_ENABLED; 3140 if (x & UHCI_PORTSC_OCI ) 3141 status |= UPS_OVERCURRENT_INDICATOR; 3142 if (x & UHCI_PORTSC_OCIC ) 3143 change |= UPS_C_OVERCURRENT_INDICATOR; 3144 if (x & UHCI_PORTSC_SUSP ) 3145 status |= UPS_SUSPEND; 3146 if (x & UHCI_PORTSC_LSDA ) 3147 status |= UPS_LOW_SPEED; 3148 status |= UPS_PORT_POWER; 3149 if (sc->sc_isreset) 3150 change |= UPS_C_PORT_RESET; 3151 USETW(ps.wPortStatus, status); 3152 USETW(ps.wPortChange, change); 3153 l = min(len, sizeof ps); 3154 memcpy(buf, &ps, l); 3155 totlen = l; 3156 break; 3157 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3158 err = USBD_IOERROR; 3159 goto ret; 3160 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3161 break; 3162 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3163 if (index == 1) 3164 port = UHCI_PORTSC1; 3165 else if (index == 2) 3166 port = UHCI_PORTSC2; 3167 else { 3168 err = USBD_IOERROR; 3169 goto ret; 3170 } 3171 switch(value) { 3172 case UHF_PORT_ENABLE: 3173 x = UREAD2(sc, port); 3174 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3175 break; 3176 case UHF_PORT_SUSPEND: 3177 x = UREAD2(sc, port); 3178 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3179 break; 3180 case UHF_PORT_RESET: 3181 x = UREAD2(sc, port); 3182 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3183 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3184 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3185 delay(100); 3186 x = UREAD2(sc, port); 3187 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3188 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3189 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3190 index, UREAD2(sc, port))); 3191 sc->sc_isreset = 1; 3192 break; 3193 case UHF_PORT_POWER: 3194 /* Pretend we turned on power */ 3195 err = USBD_NORMAL_COMPLETION; 3196 goto ret; 3197 case UHF_C_PORT_CONNECTION: 3198 case UHF_C_PORT_ENABLE: 3199 case UHF_C_PORT_OVER_CURRENT: 3200 case UHF_PORT_CONNECTION: 3201 case UHF_PORT_OVER_CURRENT: 3202 case UHF_PORT_LOW_SPEED: 3203 case UHF_C_PORT_SUSPEND: 3204 case UHF_C_PORT_RESET: 3205 default: 3206 err = USBD_IOERROR; 3207 goto ret; 3208 } 3209 break; 3210 default: 3211 err = USBD_IOERROR; 3212 goto ret; 3213 } 3214 xfer->actlen = totlen; 3215 err = USBD_NORMAL_COMPLETION; 3216 ret: 3217 xfer->status = err; 3218 s = splusb(); 3219 usb_transfer_complete(xfer); 3220 splx(s); 3221 return (USBD_IN_PROGRESS); 3222 } 3223 3224 /* Abort a root control request. */ 3225 void 3226 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3227 { 3228 /* Nothing to do, all transfers are synchronous. */ 3229 } 3230 3231 /* Close the root pipe. */ 3232 void 3233 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3234 { 3235 DPRINTF(("uhci_root_ctrl_close\n")); 3236 } 3237 3238 /* Abort a root interrupt request. */ 3239 void 3240 uhci_root_intr_abort(usbd_xfer_handle xfer) 3241 { 3242 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3243 3244 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3245 sc->sc_intr_xfer = NULL; 3246 3247 if (xfer->pipe->intrxfer == xfer) { 3248 DPRINTF(("uhci_root_intr_abort: remove\n")); 3249 xfer->pipe->intrxfer = 0; 3250 } 3251 xfer->status = USBD_CANCELLED; 3252 #ifdef DIAGNOSTIC 3253 UXFER(xfer)->iinfo.isdone = 1; 3254 #endif 3255 usb_transfer_complete(xfer); 3256 } 3257 3258 usbd_status 3259 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3260 { 3261 usbd_status err; 3262 3263 /* Insert last in queue. */ 3264 err = usb_insert_transfer(xfer); 3265 if (err) 3266 return (err); 3267 3268 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3269 * start first 3270 */ 3271 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3272 } 3273 3274 /* Start a transfer on the root interrupt pipe */ 3275 usbd_status 3276 uhci_root_intr_start(usbd_xfer_handle xfer) 3277 { 3278 usbd_pipe_handle pipe = xfer->pipe; 3279 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3280 3281 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3282 xfer, xfer->length, xfer->flags)); 3283 3284 if (sc->sc_dying) 3285 return (USBD_IOERROR); 3286 3287 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3288 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3289 sc->sc_intr_xfer = xfer; 3290 return (USBD_IN_PROGRESS); 3291 } 3292 3293 /* Close the root interrupt pipe. */ 3294 void 3295 uhci_root_intr_close(usbd_pipe_handle pipe) 3296 { 3297 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3298 3299 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3300 sc->sc_intr_xfer = NULL; 3301 DPRINTF(("uhci_root_intr_close\n")); 3302 } 3303
Indexes created Tue Sep 30 20:09:53 GMT 2025