uhci.c revision 1.130
1 /* $NetBSD: uhci.c,v 1.130 2000/12/18 15:55:30 tsutsui 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 switch (why) { 698 case PWR_SUSPEND: 699 case PWR_STANDBY: 700 #ifdef UHCI_DEBUG 701 if (uhcidebug > 2) 702 uhci_dumpregs(sc); 703 #endif 704 if (sc->sc_intr_xfer != NULL) 705 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 706 sc->sc_intr_xfer); 707 sc->sc_bus.use_polling++; 708 uhci_run(sc, 0); /* stop the controller */ 709 710 /* save some state if BIOS doesn't */ 711 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 712 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 713 714 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 715 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 716 sc->sc_suspend = why; 717 sc->sc_bus.use_polling--; 718 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 719 break; 720 case PWR_RESUME: 721 #ifdef DIAGNOSTIC 722 if (sc->sc_suspend == PWR_RESUME) 723 printf("uhci_power: weird, resume without suspend.\n"); 724 #endif 725 sc->sc_bus.use_polling++; 726 sc->sc_suspend = why; 727 if (cmd & UHCI_CMD_RS) 728 uhci_run(sc, 0); /* in case BIOS has started it */ 729 730 /* restore saved state */ 731 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 732 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 733 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 734 735 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 736 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 737 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 738 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 739 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 740 uhci_run(sc, 1); /* and start traffic again */ 741 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 742 sc->sc_bus.use_polling--; 743 if (sc->sc_intr_xfer != NULL) 744 usb_callout(sc->sc_poll_handle, sc->sc_ival, 745 uhci_poll_hub, sc->sc_intr_xfer); 746 #ifdef UHCI_DEBUG 747 if (uhcidebug > 2) 748 uhci_dumpregs(sc); 749 #endif 750 break; 751 case PWR_SOFTSUSPEND: 752 case PWR_SOFTSTANDBY: 753 case PWR_SOFTRESUME: 754 break; 755 } 756 splx(s); 757 } 758 759 #ifdef UHCI_DEBUG 760 Static void 761 uhci_dumpregs(uhci_softc_t *sc) 762 { 763 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 764 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 765 USBDEVNAME(sc->sc_bus.bdev), 766 UREAD2(sc, UHCI_CMD), 767 UREAD2(sc, UHCI_STS), 768 UREAD2(sc, UHCI_INTR), 769 UREAD2(sc, UHCI_FRNUM), 770 UREAD4(sc, UHCI_FLBASEADDR), 771 UREAD1(sc, UHCI_SOF), 772 UREAD2(sc, UHCI_PORTSC1), 773 UREAD2(sc, UHCI_PORTSC2))); 774 } 775 776 void 777 uhci_dump_td(uhci_soft_td_t *p) 778 { 779 char sbuf[128], sbuf2[128]; 780 781 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 782 "token=0x%08lx buffer=0x%08lx\n", 783 p, (long)p->physaddr, 784 (long)le32toh(p->td.td_link), 785 (long)le32toh(p->td.td_status), 786 (long)le32toh(p->td.td_token), 787 (long)le32toh(p->td.td_buffer))); 788 789 bitmask_snprintf((int)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 790 sbuf, sizeof(sbuf)); 791 bitmask_snprintf((int)le32toh(p->td.td_status), 792 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 793 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 794 sbuf2, sizeof(sbuf2)); 795 796 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 797 "D=%d,maxlen=%d\n", sbuf, sbuf2, 798 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 799 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 800 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 801 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 802 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 803 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 804 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 805 } 806 807 void 808 uhci_dump_qh(uhci_soft_qh_t *sqh) 809 { 810 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 811 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 812 le32toh(sqh->qh.qh_elink))); 813 } 814 815 816 #if 1 817 void 818 uhci_dump(void) 819 { 820 uhci_dump_all(thesc); 821 } 822 #endif 823 824 void 825 uhci_dump_all(uhci_softc_t *sc) 826 { 827 uhci_dumpregs(sc); 828 printf("intrs=%d\n", sc->sc_bus.no_intrs); 829 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 830 uhci_dump_qh(sc->sc_lctl_start); 831 } 832 833 834 void 835 uhci_dump_qhs(uhci_soft_qh_t *sqh) 836 { 837 uhci_dump_qh(sqh); 838 839 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 840 * Traverses sideways first, then down. 841 * 842 * QH1 843 * QH2 844 * No QH 845 * TD2.1 846 * TD2.2 847 * TD1.1 848 * etc. 849 * 850 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 851 */ 852 853 854 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 855 uhci_dump_qhs(sqh->hlink); 856 else 857 DPRINTF(("No QH\n")); 858 859 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 860 uhci_dump_tds(sqh->elink); 861 else 862 DPRINTF(("No TD\n")); 863 } 864 865 void 866 uhci_dump_tds(uhci_soft_td_t *std) 867 { 868 uhci_soft_td_t *td; 869 870 for(td = std; td != NULL; td = td->link.std) { 871 uhci_dump_td(td); 872 873 /* Check whether the link pointer in this TD marks 874 * the link pointer as end of queue. This avoids 875 * printing the free list in case the queue/TD has 876 * already been moved there (seatbelt). 877 */ 878 if (le32toh(td->td.td_link) & UHCI_PTR_T || 879 le32toh(td->td.td_link) == 0) 880 break; 881 } 882 } 883 884 Static void 885 uhci_dump_ii(uhci_intr_info_t *ii) 886 { 887 usbd_pipe_handle pipe; 888 usb_endpoint_descriptor_t *ed; 889 usbd_device_handle dev; 890 891 #ifdef DIAGNOSTIC 892 #define DONE ii->isdone 893 #else 894 #define DONE 0 895 #endif 896 if (ii == NULL) { 897 printf("ii NULL\n"); 898 return; 899 } 900 if (ii->xfer == NULL) { 901 printf("ii %p: done=%d xfer=NULL\n", 902 ii, DONE); 903 return; 904 } 905 pipe = ii->xfer->pipe; 906 if (pipe == NULL) { 907 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 908 ii, DONE, ii->xfer); 909 return; 910 } 911 ed = pipe->endpoint->edesc; 912 dev = pipe->device; 913 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", 914 ii, DONE, ii->xfer, dev, 915 UGETW(dev->ddesc.idVendor), 916 UGETW(dev->ddesc.idProduct), 917 dev->address, pipe, 918 ed->bEndpointAddress, ed->bmAttributes); 919 #undef DONE 920 } 921 922 void uhci_dump_iis(struct uhci_softc *sc); 923 void 924 uhci_dump_iis(struct uhci_softc *sc) 925 { 926 uhci_intr_info_t *ii; 927 928 printf("intr_info list:\n"); 929 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 930 uhci_dump_ii(ii); 931 } 932 933 void iidump(void); 934 void iidump(void) { uhci_dump_iis(thesc); } 935 936 #endif 937 938 /* 939 * This routine is executed periodically and simulates interrupts 940 * from the root controller interrupt pipe for port status change. 941 */ 942 void 943 uhci_poll_hub(void *addr) 944 { 945 usbd_xfer_handle xfer = addr; 946 usbd_pipe_handle pipe = xfer->pipe; 947 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 948 int s; 949 u_char *p; 950 951 DPRINTFN(20, ("uhci_poll_hub\n")); 952 953 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 954 955 p = KERNADDR(&xfer->dmabuf); 956 p[0] = 0; 957 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 958 p[0] |= 1<<1; 959 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 960 p[0] |= 1<<2; 961 if (p[0] == 0) 962 /* No change, try again in a while */ 963 return; 964 965 xfer->actlen = 1; 966 xfer->status = USBD_NORMAL_COMPLETION; 967 s = splusb(); 968 xfer->device->bus->intr_context++; 969 usb_transfer_complete(xfer); 970 xfer->device->bus->intr_context--; 971 splx(s); 972 } 973 974 void 975 uhci_root_intr_done(usbd_xfer_handle xfer) 976 { 977 } 978 979 void 980 uhci_root_ctrl_done(usbd_xfer_handle xfer) 981 { 982 } 983 984 /* 985 * Let the last QH loop back to the high speed control transfer QH. 986 * This is what intel calls "bandwidth reclamation" and improves 987 * USB performance a lot for some devices. 988 * If we are already looping, just count it. 989 */ 990 void 991 uhci_add_loop(uhci_softc_t *sc) { 992 #ifdef UHCI_DEBUG 993 if (uhcinoloop) 994 return; 995 #endif 996 if (++sc->sc_loops == 1) { 997 DPRINTFN(5,("uhci_start_loop: add\n")); 998 /* Note, we don't loop back the soft pointer. */ 999 sc->sc_last_qh->qh.qh_hlink = 1000 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1001 } 1002 } 1003 1004 void 1005 uhci_rem_loop(uhci_softc_t *sc) { 1006 #ifdef UHCI_DEBUG 1007 if (uhcinoloop) 1008 return; 1009 #endif 1010 if (--sc->sc_loops == 0) { 1011 DPRINTFN(5,("uhci_end_loop: remove\n")); 1012 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1013 } 1014 } 1015 1016 /* Add high speed control QH, called at splusb(). */ 1017 void 1018 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1019 { 1020 uhci_soft_qh_t *eqh; 1021 1022 SPLUSBCHECK; 1023 1024 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1025 eqh = sc->sc_hctl_end; 1026 sqh->hlink = eqh->hlink; 1027 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1028 eqh->hlink = sqh; 1029 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1030 sc->sc_hctl_end = sqh; 1031 #ifdef UHCI_CTL_LOOP 1032 uhci_add_loop(sc); 1033 #endif 1034 } 1035 1036 /* Remove high speed control QH, called at splusb(). */ 1037 void 1038 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1039 { 1040 uhci_soft_qh_t *pqh; 1041 1042 SPLUSBCHECK; 1043 1044 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1045 #ifdef UHCI_CTL_LOOP 1046 uhci_rem_loop(sc); 1047 #endif 1048 /* 1049 * The T bit should be set in the elink of the QH so that the HC 1050 * doesn't follow the pointer. This condition may fail if the 1051 * the transferred packet was short so that the QH still points 1052 * at the last used TD. 1053 * In this case we set the T bit and wait a little for the HC 1054 * to stop looking at the TD. 1055 */ 1056 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1057 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1058 delay(UHCI_QH_REMOVE_DELAY); 1059 } 1060 1061 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1062 pqh->hlink = sqh->hlink; 1063 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1064 delay(UHCI_QH_REMOVE_DELAY); 1065 if (sc->sc_hctl_end == sqh) 1066 sc->sc_hctl_end = pqh; 1067 } 1068 1069 /* Add low speed control QH, called at splusb(). */ 1070 void 1071 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1072 { 1073 uhci_soft_qh_t *eqh; 1074 1075 SPLUSBCHECK; 1076 1077 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1078 eqh = sc->sc_lctl_end; 1079 sqh->hlink = eqh->hlink; 1080 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1081 eqh->hlink = sqh; 1082 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1083 sc->sc_lctl_end = sqh; 1084 } 1085 1086 /* Remove low speed control QH, called at splusb(). */ 1087 void 1088 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1089 { 1090 uhci_soft_qh_t *pqh; 1091 1092 SPLUSBCHECK; 1093 1094 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1095 /* See comment in uhci_remove_hs_ctrl() */ 1096 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1097 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1098 delay(UHCI_QH_REMOVE_DELAY); 1099 } 1100 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1101 pqh->hlink = sqh->hlink; 1102 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1103 delay(UHCI_QH_REMOVE_DELAY); 1104 if (sc->sc_lctl_end == sqh) 1105 sc->sc_lctl_end = pqh; 1106 } 1107 1108 /* Add bulk QH, called at splusb(). */ 1109 void 1110 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1111 { 1112 uhci_soft_qh_t *eqh; 1113 1114 SPLUSBCHECK; 1115 1116 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1117 eqh = sc->sc_bulk_end; 1118 sqh->hlink = eqh->hlink; 1119 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1120 eqh->hlink = sqh; 1121 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1122 sc->sc_bulk_end = sqh; 1123 uhci_add_loop(sc); 1124 } 1125 1126 /* Remove bulk QH, called at splusb(). */ 1127 void 1128 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1129 { 1130 uhci_soft_qh_t *pqh; 1131 1132 SPLUSBCHECK; 1133 1134 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1135 uhci_rem_loop(sc); 1136 /* See comment in uhci_remove_hs_ctrl() */ 1137 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1138 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1139 delay(UHCI_QH_REMOVE_DELAY); 1140 } 1141 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1142 pqh->hlink = sqh->hlink; 1143 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1144 delay(UHCI_QH_REMOVE_DELAY); 1145 if (sc->sc_bulk_end == sqh) 1146 sc->sc_bulk_end = pqh; 1147 } 1148 1149 int 1150 uhci_intr(void *arg) 1151 { 1152 uhci_softc_t *sc = arg; 1153 int status; 1154 int ack; 1155 1156 #ifdef UHCI_DEBUG 1157 if (uhcidebug > 15) { 1158 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 1159 uhci_dumpregs(sc); 1160 } 1161 #endif 1162 1163 status = UREAD2(sc, UHCI_STS); 1164 if (status == 0) /* The interrupt was not for us. */ 1165 return (0); 1166 1167 if (sc->sc_suspend != PWR_RESUME) { 1168 printf("%s: interrupt while not operating ignored\n", 1169 USBDEVNAME(sc->sc_bus.bdev)); 1170 return (0); 1171 } 1172 1173 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 1174 if (sc->sc_suspend != PWR_RESUME) 1175 printf("uhci_intr: suspended sts=0x%x\n", status); 1176 #endif 1177 1178 ack = 0; 1179 if (status & UHCI_STS_USBINT) 1180 ack |= UHCI_STS_USBINT; 1181 if (status & UHCI_STS_USBEI) 1182 ack |= UHCI_STS_USBEI; 1183 if (status & UHCI_STS_RD) { 1184 ack |= UHCI_STS_RD; 1185 #ifdef UHCI_DEBUG 1186 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1187 #endif 1188 } 1189 if (status & UHCI_STS_HSE) { 1190 ack |= UHCI_STS_HSE; 1191 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1192 } 1193 if (status & UHCI_STS_HCPE) { 1194 ack |= UHCI_STS_HCPE; 1195 printf("%s: host controller process error\n", 1196 USBDEVNAME(sc->sc_bus.bdev)); 1197 } 1198 if (status & UHCI_STS_HCH) { 1199 /* no acknowledge needed */ 1200 if (!sc->sc_dying) 1201 printf("%s: host controller halted\n", 1202 USBDEVNAME(sc->sc_bus.bdev)); 1203 sc->sc_dying = 1; 1204 #ifdef UHCI_DEBUG 1205 uhci_dump_all(sc); 1206 #endif 1207 1208 } 1209 1210 if (ack) /* acknowledge the ints */ 1211 UWRITE2(sc, UHCI_STS, ack); 1212 else /* nothing to acknowledge */ 1213 return (0); 1214 1215 sc->sc_bus.no_intrs++; 1216 usb_schedsoftintr(&sc->sc_bus); 1217 1218 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1219 1220 return (1); 1221 } 1222 1223 void 1224 uhci_softintr(struct usbd_bus *bus) 1225 { 1226 uhci_softc_t *sc = (uhci_softc_t *)bus; 1227 uhci_intr_info_t *ii; 1228 1229 DPRINTFN(10,("%s: uhci_softintr\n", USBDEVNAME(sc->sc_bus.bdev))); 1230 1231 sc->sc_bus.intr_context++; 1232 1233 /* 1234 * Interrupts on UHCI really suck. When the host controller 1235 * interrupts because a transfer is completed there is no 1236 * way of knowing which transfer it was. You can scan down 1237 * the TDs and QHs of the previous frame to limit the search, 1238 * but that assumes that the interrupt was not delayed by more 1239 * than 1 ms, which may not always be true (e.g. after debug 1240 * output on a slow console). 1241 * We scan all interrupt descriptors to see if any have 1242 * completed. 1243 */ 1244 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1245 uhci_check_intr(sc, ii); 1246 1247 sc->sc_bus.intr_context--; 1248 } 1249 1250 /* Check for an interrupt. */ 1251 void 1252 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1253 { 1254 uhci_soft_td_t *std, *lstd; 1255 u_int32_t status; 1256 1257 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1258 #ifdef DIAGNOSTIC 1259 if (ii == NULL) { 1260 printf("uhci_check_intr: no ii? %p\n", ii); 1261 return; 1262 } 1263 #endif 1264 if (ii->stdstart == NULL) 1265 return; 1266 lstd = ii->stdend; 1267 #ifdef DIAGNOSTIC 1268 if (lstd == NULL) { 1269 printf("uhci_check_intr: std==0\n"); 1270 return; 1271 } 1272 #endif 1273 /* 1274 * If the last TD is still active we need to check whether there 1275 * is a an error somewhere in the middle, or whether there was a 1276 * short packet (SPD and not ACTIVE). 1277 */ 1278 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1279 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1280 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1281 status = le32toh(std->td.td_status); 1282 /* If there's an active TD the xfer isn't done. */ 1283 if (status & UHCI_TD_ACTIVE) 1284 break; 1285 /* Any kind of error makes the xfer done. */ 1286 if (status & UHCI_TD_STALLED) 1287 goto done; 1288 /* We want short packets, and it is short: it's done */ 1289 if ((status & UHCI_TD_SPD) && 1290 UHCI_TD_GET_ACTLEN(status) < 1291 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1292 goto done; 1293 } 1294 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1295 ii, ii->stdstart)); 1296 return; 1297 } 1298 done: 1299 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1300 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1301 uhci_idone(ii); 1302 } 1303 1304 /* Called at splusb() */ 1305 void 1306 uhci_idone(uhci_intr_info_t *ii) 1307 { 1308 usbd_xfer_handle xfer = ii->xfer; 1309 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1310 uhci_soft_td_t *std; 1311 u_int32_t status = 0, nstatus; 1312 int actlen; 1313 1314 #ifdef DIAGNOSTIC 1315 { 1316 int s = splhigh(); 1317 if (ii->isdone) { 1318 splx(s); 1319 #ifdef UHCI_DEBUG 1320 printf("uhci_idone: ii is done!\n "); 1321 uhci_dump_ii(ii); 1322 #else 1323 printf("uhci_idone: ii=%p is done!\n", ii); 1324 #endif 1325 return; 1326 } 1327 ii->isdone = 1; 1328 splx(s); 1329 } 1330 #endif 1331 1332 if (xfer->status == USBD_CANCELLED || 1333 xfer->status == USBD_TIMEOUT) { 1334 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1335 return; 1336 } 1337 1338 if (xfer->nframes != 0) { 1339 /* Isoc transfer, do things differently. */ 1340 uhci_soft_td_t **stds = upipe->u.iso.stds; 1341 int i, n, nframes, len; 1342 1343 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1344 1345 nframes = xfer->nframes; 1346 actlen = 0; 1347 n = UXFER(xfer)->curframe; 1348 for (i = 0; i < nframes; i++) { 1349 std = stds[n]; 1350 #ifdef UHCI_DEBUG 1351 if (uhcidebug > 5) { 1352 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1353 uhci_dump_td(std); 1354 } 1355 #endif 1356 if (++n >= UHCI_VFRAMELIST_COUNT) 1357 n = 0; 1358 status = le32toh(std->td.td_status); 1359 len = UHCI_TD_GET_ACTLEN(status); 1360 xfer->frlengths[i] = len; 1361 actlen += len; 1362 } 1363 upipe->u.iso.inuse -= nframes; 1364 xfer->actlen = actlen; 1365 xfer->status = USBD_NORMAL_COMPLETION; 1366 usb_transfer_complete(xfer); 1367 return; 1368 } 1369 1370 #ifdef UHCI_DEBUG 1371 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1372 ii, xfer, upipe)); 1373 if (uhcidebug > 10) 1374 uhci_dump_tds(ii->stdstart); 1375 #endif 1376 1377 /* The transfer is done, compute actual length and status. */ 1378 actlen = 0; 1379 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1380 nstatus = le32toh(std->td.td_status); 1381 if (nstatus & UHCI_TD_ACTIVE) 1382 break; 1383 1384 status = nstatus; 1385 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1386 UHCI_TD_PID_SETUP) 1387 actlen += UHCI_TD_GET_ACTLEN(status); 1388 } 1389 /* If there are left over TDs we need to update the toggle. */ 1390 if (std != NULL) 1391 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1392 1393 status &= UHCI_TD_ERROR; 1394 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1395 actlen, status)); 1396 xfer->actlen = actlen; 1397 if (status != 0) { 1398 #ifdef UHCI_DEBUG 1399 char sbuf[128]; 1400 1401 bitmask_snprintf((int)status, "\20\22BITSTUFF\23CRCTO\24NAK\25" 1402 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1403 sbuf, sizeof(sbuf)); 1404 1405 DPRINTFN((status == UHCI_TD_STALLED)*10, 1406 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1407 "status 0x%s\n", 1408 xfer->pipe->device->address, 1409 xfer->pipe->endpoint->edesc->bEndpointAddress, 1410 sbuf)); 1411 #endif 1412 1413 if (status == UHCI_TD_STALLED) 1414 xfer->status = USBD_STALLED; 1415 else 1416 xfer->status = USBD_IOERROR; /* more info XXX */ 1417 } else { 1418 xfer->status = USBD_NORMAL_COMPLETION; 1419 } 1420 usb_transfer_complete(xfer); 1421 } 1422 1423 /* 1424 * Called when a request does not complete. 1425 */ 1426 void 1427 uhci_timeout(void *addr) 1428 { 1429 uhci_intr_info_t *ii = addr; 1430 1431 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1432 1433 #ifdef UHCI_DEBUG 1434 if (uhcidebug > 10) 1435 uhci_dump_tds(ii->stdstart); 1436 #endif 1437 1438 ii->xfer->device->bus->intr_context++; 1439 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1440 ii->xfer->device->bus->intr_context--; 1441 } 1442 1443 /* 1444 * Wait here until controller claims to have an interrupt. 1445 * Then call uhci_intr and return. Use timeout to avoid waiting 1446 * too long. 1447 * Only used during boot when interrupts are not enabled yet. 1448 */ 1449 void 1450 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1451 { 1452 int timo = xfer->timeout; 1453 uhci_intr_info_t *ii; 1454 1455 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1456 1457 xfer->status = USBD_IN_PROGRESS; 1458 for (; timo >= 0; timo--) { 1459 usb_delay_ms(&sc->sc_bus, 1); 1460 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1461 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1462 uhci_intr(sc); 1463 if (xfer->status != USBD_IN_PROGRESS) 1464 return; 1465 } 1466 } 1467 1468 /* Timeout */ 1469 DPRINTF(("uhci_waitintr: timeout\n")); 1470 for (ii = LIST_FIRST(&sc->sc_intrhead); 1471 ii != NULL && ii->xfer != xfer; 1472 ii = LIST_NEXT(ii, list)) 1473 ; 1474 #ifdef DIAGNOSTIC 1475 if (ii == NULL) 1476 panic("uhci_waitintr: lost intr_info\n"); 1477 #endif 1478 uhci_idone(ii); 1479 } 1480 1481 void 1482 uhci_poll(struct usbd_bus *bus) 1483 { 1484 uhci_softc_t *sc = (uhci_softc_t *)bus; 1485 1486 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1487 uhci_intr(sc); 1488 } 1489 1490 #if 0 1491 void 1492 uhci_reset(uhci_softc_t *sc) 1493 { 1494 int n; 1495 1496 UHCICMD(sc, UHCI_CMD_HCRESET); 1497 /* The reset bit goes low when the controller is done. */ 1498 for (n = 0; n < UHCI_RESET_TIMEOUT && 1499 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1500 usb_delay_ms(&sc->sc_bus, 1); 1501 if (n >= UHCI_RESET_TIMEOUT) 1502 printf("%s: controller did not reset\n", 1503 USBDEVNAME(sc->sc_bus.bdev)); 1504 } 1505 #endif 1506 1507 usbd_status 1508 uhci_run(uhci_softc_t *sc, int run) 1509 { 1510 int s, n, running; 1511 u_int16_t cmd; 1512 1513 run = run != 0; 1514 s = splusb(); 1515 DPRINTF(("uhci_run: setting run=%d\n", run)); 1516 cmd = UREAD2(sc, UHCI_CMD); 1517 if (run) 1518 cmd |= UHCI_CMD_RS; 1519 else 1520 cmd &= ~UHCI_CMD_RS; 1521 UHCICMD(sc, cmd); 1522 for(n = 0; n < 10; n++) { 1523 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1524 /* return when we've entered the state we want */ 1525 if (run == running) { 1526 splx(s); 1527 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1528 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1529 return (USBD_NORMAL_COMPLETION); 1530 } 1531 usb_delay_ms(&sc->sc_bus, 1); 1532 } 1533 splx(s); 1534 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1535 run ? "start" : "stop"); 1536 return (USBD_IOERROR); 1537 } 1538 1539 /* 1540 * Memory management routines. 1541 * uhci_alloc_std allocates TDs 1542 * uhci_alloc_sqh allocates QHs 1543 * These two routines do their own free list management, 1544 * partly for speed, partly because allocating DMAable memory 1545 * has page size granularaity so much memory would be wasted if 1546 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1547 */ 1548 1549 uhci_soft_td_t * 1550 uhci_alloc_std(uhci_softc_t *sc) 1551 { 1552 uhci_soft_td_t *std; 1553 usbd_status err; 1554 int i, offs; 1555 usb_dma_t dma; 1556 1557 if (sc->sc_freetds == NULL) { 1558 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1559 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1560 UHCI_TD_ALIGN, &dma); 1561 if (err) 1562 return (0); 1563 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1564 offs = i * UHCI_STD_SIZE; 1565 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1566 std->physaddr = DMAADDR(&dma) + offs; 1567 std->link.std = sc->sc_freetds; 1568 sc->sc_freetds = std; 1569 } 1570 } 1571 std = sc->sc_freetds; 1572 sc->sc_freetds = std->link.std; 1573 memset(&std->td, 0, sizeof(uhci_td_t)); 1574 return std; 1575 } 1576 1577 void 1578 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1579 { 1580 #ifdef DIAGNOSTIC 1581 #define TD_IS_FREE 0x12345678 1582 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1583 printf("uhci_free_std: freeing free TD %p\n", std); 1584 return; 1585 } 1586 std->td.td_token = htole32(TD_IS_FREE); 1587 #endif 1588 std->link.std = sc->sc_freetds; 1589 sc->sc_freetds = std; 1590 } 1591 1592 uhci_soft_qh_t * 1593 uhci_alloc_sqh(uhci_softc_t *sc) 1594 { 1595 uhci_soft_qh_t *sqh; 1596 usbd_status err; 1597 int i, offs; 1598 usb_dma_t dma; 1599 1600 if (sc->sc_freeqhs == NULL) { 1601 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1602 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1603 UHCI_QH_ALIGN, &dma); 1604 if (err) 1605 return (0); 1606 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1607 offs = i * UHCI_SQH_SIZE; 1608 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1609 sqh->physaddr = DMAADDR(&dma) + offs; 1610 sqh->hlink = sc->sc_freeqhs; 1611 sc->sc_freeqhs = sqh; 1612 } 1613 } 1614 sqh = sc->sc_freeqhs; 1615 sc->sc_freeqhs = sqh->hlink; 1616 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1617 return (sqh); 1618 } 1619 1620 void 1621 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1622 { 1623 sqh->hlink = sc->sc_freeqhs; 1624 sc->sc_freeqhs = sqh; 1625 } 1626 1627 void 1628 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1629 uhci_soft_td_t *stdend) 1630 { 1631 uhci_soft_td_t *p; 1632 1633 for (; std != stdend; std = p) { 1634 p = std->link.std; 1635 uhci_free_std(sc, std); 1636 } 1637 } 1638 1639 usbd_status 1640 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1641 int rd, u_int16_t flags, usb_dma_t *dma, 1642 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1643 { 1644 uhci_soft_td_t *p, *lastp; 1645 uhci_physaddr_t lastlink; 1646 int i, ntd, l, tog, maxp; 1647 u_int32_t status; 1648 int addr = upipe->pipe.device->address; 1649 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1650 1651 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1652 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1653 upipe->pipe.device->lowspeed, flags)); 1654 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1655 if (maxp == 0) { 1656 printf("uhci_alloc_std_chain: maxp=0\n"); 1657 return (USBD_INVAL); 1658 } 1659 ntd = (len + maxp - 1) / maxp; 1660 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1661 ntd++; 1662 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1663 if (ntd == 0) { 1664 *sp = *ep = 0; 1665 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1666 return (USBD_NORMAL_COMPLETION); 1667 } 1668 tog = upipe->nexttoggle; 1669 if (ntd % 2 == 0) 1670 tog ^= 1; 1671 upipe->nexttoggle = tog ^ 1; 1672 lastp = NULL; 1673 lastlink = UHCI_PTR_T; 1674 ntd--; 1675 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1676 if (upipe->pipe.device->lowspeed) 1677 status |= UHCI_TD_LS; 1678 if (flags & USBD_SHORT_XFER_OK) 1679 status |= UHCI_TD_SPD; 1680 for (i = ntd; i >= 0; i--) { 1681 p = uhci_alloc_std(sc); 1682 if (p == NULL) { 1683 uhci_free_std_chain(sc, lastp, 0); 1684 return (USBD_NOMEM); 1685 } 1686 p->link.std = lastp; 1687 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1688 lastp = p; 1689 lastlink = p->physaddr; 1690 p->td.td_status = htole32(status); 1691 if (i == ntd) { 1692 /* last TD */ 1693 l = len % maxp; 1694 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1695 l = maxp; 1696 *ep = p; 1697 } else 1698 l = maxp; 1699 p->td.td_token = 1700 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1701 UHCI_TD_OUT(l, endpt, addr, tog)); 1702 p->td.td_buffer = htole32(DMAADDR(dma) + i * maxp); 1703 tog ^= 1; 1704 } 1705 *sp = lastp; 1706 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1707 upipe->nexttoggle)); 1708 return (USBD_NORMAL_COMPLETION); 1709 } 1710 1711 void 1712 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1713 { 1714 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1715 upipe->nexttoggle = 0; 1716 } 1717 1718 void 1719 uhci_noop(usbd_pipe_handle pipe) 1720 { 1721 } 1722 1723 usbd_status 1724 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1725 { 1726 usbd_status err; 1727 1728 /* Insert last in queue. */ 1729 err = usb_insert_transfer(xfer); 1730 if (err) 1731 return (err); 1732 1733 /* 1734 * Pipe isn't running (otherwise err would be USBD_INPROG), 1735 * so start it first. 1736 */ 1737 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1738 } 1739 1740 usbd_status 1741 uhci_device_bulk_start(usbd_xfer_handle xfer) 1742 { 1743 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1744 usbd_device_handle dev = upipe->pipe.device; 1745 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1746 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1747 uhci_soft_td_t *data, *dataend; 1748 uhci_soft_qh_t *sqh; 1749 usbd_status err; 1750 int len, isread, endpt; 1751 int s; 1752 1753 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1754 xfer, xfer->length, xfer->flags)); 1755 1756 if (sc->sc_dying) 1757 return (USBD_IOERROR); 1758 1759 #ifdef DIAGNOSTIC 1760 if (xfer->rqflags & URQ_REQUEST) 1761 panic("uhci_device_bulk_transfer: a request\n"); 1762 #endif 1763 1764 len = xfer->length; 1765 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1766 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1767 sqh = upipe->u.bulk.sqh; 1768 1769 upipe->u.bulk.isread = isread; 1770 upipe->u.bulk.length = len; 1771 1772 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1773 &xfer->dmabuf, &data, &dataend); 1774 if (err) 1775 return (err); 1776 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1777 1778 #ifdef UHCI_DEBUG 1779 if (uhcidebug > 8) { 1780 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1781 uhci_dump_tds(data); 1782 } 1783 #endif 1784 1785 /* Set up interrupt info. */ 1786 ii->xfer = xfer; 1787 ii->stdstart = data; 1788 ii->stdend = dataend; 1789 #ifdef DIAGNOSTIC 1790 if (!ii->isdone) { 1791 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1792 } 1793 ii->isdone = 0; 1794 #endif 1795 1796 sqh->elink = data; 1797 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1798 1799 s = splusb(); 1800 uhci_add_bulk(sc, sqh); 1801 uhci_add_intr_info(sc, ii); 1802 1803 if (xfer->timeout && !sc->sc_bus.use_polling) { 1804 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1805 uhci_timeout, ii); 1806 } 1807 xfer->status = USBD_IN_PROGRESS; 1808 splx(s); 1809 1810 #ifdef UHCI_DEBUG 1811 if (uhcidebug > 10) { 1812 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1813 uhci_dump_tds(data); 1814 } 1815 #endif 1816 1817 if (sc->sc_bus.use_polling) 1818 uhci_waitintr(sc, xfer); 1819 1820 return (USBD_IN_PROGRESS); 1821 } 1822 1823 /* Abort a device bulk request. */ 1824 void 1825 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1826 { 1827 DPRINTF(("uhci_device_bulk_abort:\n")); 1828 uhci_abort_xfer(xfer, USBD_CANCELLED); 1829 } 1830 1831 /* 1832 * XXX This way of aborting is neither safe, nor good. 1833 * But it will have to do until I figure out what to do. 1834 * I apologize for the delay(). 1835 */ 1836 void 1837 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1838 { 1839 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1840 uhci_soft_td_t *std; 1841 int s; 1842 1843 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1844 1845 s = splusb(); 1846 1847 /* Transfer is already done. */ 1848 if (xfer->status != USBD_NOT_STARTED && 1849 xfer->status != USBD_IN_PROGRESS) { 1850 splx(s); 1851 return; 1852 } 1853 1854 /* Make interrupt routine ignore it, */ 1855 xfer->status = status; 1856 1857 /* don't timeout, */ 1858 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1859 1860 /* make hardware ignore it, */ 1861 for (std = ii->stdstart; std != NULL; std = std->link.std) 1862 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1863 1864 xfer->hcpriv = ii; 1865 1866 splx(s); 1867 1868 delay(1000); 1869 1870 s = splusb(); 1871 #ifdef DIAGNOSTIC 1872 ii->isdone = 1; 1873 #endif 1874 usb_transfer_complete(xfer); 1875 splx(s); 1876 } 1877 1878 /* Close a device bulk pipe. */ 1879 void 1880 uhci_device_bulk_close(usbd_pipe_handle pipe) 1881 { 1882 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1883 usbd_device_handle dev = upipe->pipe.device; 1884 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1885 1886 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1887 } 1888 1889 usbd_status 1890 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1891 { 1892 usbd_status err; 1893 1894 /* Insert last in queue. */ 1895 err = usb_insert_transfer(xfer); 1896 if (err) 1897 return (err); 1898 1899 /* 1900 * Pipe isn't running (otherwise err would be USBD_INPROG), 1901 * so start it first. 1902 */ 1903 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1904 } 1905 1906 usbd_status 1907 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1908 { 1909 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1910 usbd_status err; 1911 1912 if (sc->sc_dying) 1913 return (USBD_IOERROR); 1914 1915 #ifdef DIAGNOSTIC 1916 if (!(xfer->rqflags & URQ_REQUEST)) 1917 panic("uhci_device_ctrl_transfer: not a request\n"); 1918 #endif 1919 1920 err = uhci_device_request(xfer); 1921 if (err) 1922 return (err); 1923 1924 if (sc->sc_bus.use_polling) 1925 uhci_waitintr(sc, xfer); 1926 return (USBD_IN_PROGRESS); 1927 } 1928 1929 usbd_status 1930 uhci_device_intr_transfer(usbd_xfer_handle xfer) 1931 { 1932 usbd_status err; 1933 1934 /* Insert last in queue. */ 1935 err = usb_insert_transfer(xfer); 1936 if (err) 1937 return (err); 1938 1939 /* 1940 * Pipe isn't running (otherwise err would be USBD_INPROG), 1941 * so start it first. 1942 */ 1943 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1944 } 1945 1946 usbd_status 1947 uhci_device_intr_start(usbd_xfer_handle xfer) 1948 { 1949 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1950 usbd_device_handle dev = upipe->pipe.device; 1951 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1952 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1953 uhci_soft_td_t *data, *dataend; 1954 uhci_soft_qh_t *sqh; 1955 usbd_status err; 1956 int i, s; 1957 1958 if (sc->sc_dying) 1959 return (USBD_IOERROR); 1960 1961 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1962 xfer, xfer->length, xfer->flags)); 1963 1964 #ifdef DIAGNOSTIC 1965 if (xfer->rqflags & URQ_REQUEST) 1966 panic("uhci_device_intr_transfer: a request\n"); 1967 #endif 1968 1969 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 1970 &xfer->dmabuf, &data, &dataend); 1971 if (err) 1972 return (err); 1973 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1974 1975 #ifdef UHCI_DEBUG 1976 if (uhcidebug > 10) { 1977 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1978 uhci_dump_tds(data); 1979 uhci_dump_qh(upipe->u.intr.qhs[0]); 1980 } 1981 #endif 1982 1983 s = splusb(); 1984 /* Set up interrupt info. */ 1985 ii->xfer = xfer; 1986 ii->stdstart = data; 1987 ii->stdend = dataend; 1988 #ifdef DIAGNOSTIC 1989 if (!ii->isdone) { 1990 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1991 } 1992 ii->isdone = 0; 1993 #endif 1994 1995 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1996 upipe->u.intr.qhs[0])); 1997 for (i = 0; i < upipe->u.intr.npoll; i++) { 1998 sqh = upipe->u.intr.qhs[i]; 1999 sqh->elink = data; 2000 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2001 } 2002 uhci_add_intr_info(sc, ii); 2003 xfer->status = USBD_IN_PROGRESS; 2004 splx(s); 2005 2006 #ifdef UHCI_DEBUG 2007 if (uhcidebug > 10) { 2008 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2009 uhci_dump_tds(data); 2010 uhci_dump_qh(upipe->u.intr.qhs[0]); 2011 } 2012 #endif 2013 2014 return (USBD_IN_PROGRESS); 2015 } 2016 2017 /* Abort a device control request. */ 2018 void 2019 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2020 { 2021 DPRINTF(("uhci_device_ctrl_abort:\n")); 2022 uhci_abort_xfer(xfer, USBD_CANCELLED); 2023 } 2024 2025 /* Close a device control pipe. */ 2026 void 2027 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2028 { 2029 } 2030 2031 /* Abort a device interrupt request. */ 2032 void 2033 uhci_device_intr_abort(usbd_xfer_handle xfer) 2034 { 2035 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2036 if (xfer->pipe->intrxfer == xfer) { 2037 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2038 xfer->pipe->intrxfer = 0; 2039 } 2040 uhci_abort_xfer(xfer, USBD_CANCELLED); 2041 } 2042 2043 /* Close a device interrupt pipe. */ 2044 void 2045 uhci_device_intr_close(usbd_pipe_handle pipe) 2046 { 2047 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2048 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2049 int i, npoll; 2050 int s; 2051 2052 /* Unlink descriptors from controller data structures. */ 2053 npoll = upipe->u.intr.npoll; 2054 s = splusb(); 2055 for (i = 0; i < npoll; i++) 2056 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2057 splx(s); 2058 2059 /* 2060 * We now have to wait for any activity on the physical 2061 * descriptors to stop. 2062 */ 2063 usb_delay_ms(&sc->sc_bus, 2); 2064 2065 for(i = 0; i < npoll; i++) 2066 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2067 free(upipe->u.intr.qhs, M_USBHC); 2068 2069 /* XXX free other resources */ 2070 } 2071 2072 usbd_status 2073 uhci_device_request(usbd_xfer_handle xfer) 2074 { 2075 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2076 usb_device_request_t *req = &xfer->request; 2077 usbd_device_handle dev = upipe->pipe.device; 2078 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2079 int addr = dev->address; 2080 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2081 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2082 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2083 uhci_soft_qh_t *sqh; 2084 int len; 2085 u_int32_t ls; 2086 usbd_status err; 2087 int isread; 2088 int s; 2089 2090 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2091 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2092 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2093 UGETW(req->wIndex), UGETW(req->wLength), 2094 addr, endpt)); 2095 2096 ls = dev->lowspeed ? UHCI_TD_LS : 0; 2097 isread = req->bmRequestType & UT_READ; 2098 len = UGETW(req->wLength); 2099 2100 setup = upipe->u.ctl.setup; 2101 stat = upipe->u.ctl.stat; 2102 sqh = upipe->u.ctl.sqh; 2103 2104 /* Set up data transaction */ 2105 if (len != 0) { 2106 upipe->nexttoggle = 1; 2107 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2108 &xfer->dmabuf, &data, &dataend); 2109 if (err) 2110 return (err); 2111 next = data; 2112 dataend->link.std = stat; 2113 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2114 } else { 2115 next = stat; 2116 } 2117 upipe->u.ctl.length = len; 2118 2119 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 2120 2121 setup->link.std = next; 2122 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2123 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2124 UHCI_TD_ACTIVE); 2125 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2126 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2127 2128 stat->link.std = NULL; 2129 stat->td.td_link = htole32(UHCI_PTR_T); 2130 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2131 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2132 stat->td.td_token = 2133 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2134 UHCI_TD_IN (0, endpt, addr, 1)); 2135 stat->td.td_buffer = htole32(0); 2136 2137 #ifdef UHCI_DEBUG 2138 if (uhcidebug > 10) { 2139 DPRINTF(("uhci_device_request: before transfer\n")); 2140 uhci_dump_tds(setup); 2141 } 2142 #endif 2143 2144 /* Set up interrupt info. */ 2145 ii->xfer = xfer; 2146 ii->stdstart = setup; 2147 ii->stdend = stat; 2148 #ifdef DIAGNOSTIC 2149 if (!ii->isdone) { 2150 printf("uhci_device_request: not done, ii=%p\n", ii); 2151 } 2152 ii->isdone = 0; 2153 #endif 2154 2155 sqh->elink = setup; 2156 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2157 2158 s = splusb(); 2159 if (dev->lowspeed) 2160 uhci_add_ls_ctrl(sc, sqh); 2161 else 2162 uhci_add_hs_ctrl(sc, sqh); 2163 uhci_add_intr_info(sc, ii); 2164 #ifdef UHCI_DEBUG 2165 if (uhcidebug > 12) { 2166 uhci_soft_td_t *std; 2167 uhci_soft_qh_t *xqh; 2168 uhci_soft_qh_t *sxqh; 2169 int maxqh = 0; 2170 uhci_physaddr_t link; 2171 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2172 for (std = sc->sc_vframes[0].htd, link = 0; 2173 (link & UHCI_PTR_QH) == 0; 2174 std = std->link.std) { 2175 link = le32toh(std->td.td_link); 2176 uhci_dump_td(std); 2177 } 2178 sxqh = (uhci_soft_qh_t *)std; 2179 uhci_dump_qh(sxqh); 2180 for (xqh = sxqh; 2181 xqh != NULL; 2182 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2183 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2184 uhci_dump_qh(xqh); 2185 } 2186 DPRINTF(("Enqueued QH:\n")); 2187 uhci_dump_qh(sqh); 2188 uhci_dump_tds(sqh->elink); 2189 } 2190 #endif 2191 if (xfer->timeout && !sc->sc_bus.use_polling) { 2192 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2193 uhci_timeout, ii); 2194 } 2195 xfer->status = USBD_IN_PROGRESS; 2196 splx(s); 2197 2198 return (USBD_NORMAL_COMPLETION); 2199 } 2200 2201 usbd_status 2202 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2203 { 2204 usbd_status err; 2205 2206 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2207 2208 /* Put it on our queue, */ 2209 err = usb_insert_transfer(xfer); 2210 2211 /* bail out on error, */ 2212 if (err && err != USBD_IN_PROGRESS) 2213 return (err); 2214 2215 /* XXX should check inuse here */ 2216 2217 /* insert into schedule, */ 2218 uhci_device_isoc_enter(xfer); 2219 2220 /* and start if the pipe wasn't running */ 2221 if (!err) 2222 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2223 2224 return (err); 2225 } 2226 2227 void 2228 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2229 { 2230 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2231 usbd_device_handle dev = upipe->pipe.device; 2232 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2233 struct iso *iso = &upipe->u.iso; 2234 uhci_soft_td_t *std; 2235 u_int32_t buf, len, status; 2236 int s, i, next, nframes; 2237 2238 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2239 "nframes=%d\n", 2240 iso->inuse, iso->next, xfer, xfer->nframes)); 2241 2242 if (sc->sc_dying) 2243 return; 2244 2245 if (xfer->status == USBD_IN_PROGRESS) { 2246 /* This request has already been entered into the frame list */ 2247 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2248 /* XXX */ 2249 } 2250 2251 #ifdef DIAGNOSTIC 2252 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2253 printf("uhci_device_isoc_enter: overflow!\n"); 2254 #endif 2255 2256 next = iso->next; 2257 if (next == -1) { 2258 /* Not in use yet, schedule it a few frames ahead. */ 2259 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2260 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2261 } 2262 2263 xfer->status = USBD_IN_PROGRESS; 2264 UXFER(xfer)->curframe = next; 2265 2266 buf = DMAADDR(&xfer->dmabuf); 2267 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2268 UHCI_TD_ACTIVE | 2269 UHCI_TD_IOS); 2270 nframes = xfer->nframes; 2271 s = splusb(); 2272 for (i = 0; i < nframes; i++) { 2273 std = iso->stds[next]; 2274 if (++next >= UHCI_VFRAMELIST_COUNT) 2275 next = 0; 2276 len = xfer->frlengths[i]; 2277 std->td.td_buffer = htole32(buf); 2278 if (i == nframes - 1) 2279 status |= UHCI_TD_IOC; 2280 std->td.td_status = htole32(status); 2281 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2282 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2283 #ifdef UHCI_DEBUG 2284 if (uhcidebug > 5) { 2285 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2286 uhci_dump_td(std); 2287 } 2288 #endif 2289 buf += len; 2290 } 2291 iso->next = next; 2292 iso->inuse += xfer->nframes; 2293 2294 splx(s); 2295 } 2296 2297 usbd_status 2298 uhci_device_isoc_start(usbd_xfer_handle xfer) 2299 { 2300 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2301 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2302 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2303 uhci_soft_td_t *end; 2304 int s, i; 2305 2306 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2307 2308 if (sc->sc_dying) 2309 return (USBD_IOERROR); 2310 2311 #ifdef DIAGNOSTIC 2312 if (xfer->status != USBD_IN_PROGRESS) 2313 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2314 #endif 2315 2316 /* Find the last TD */ 2317 i = UXFER(xfer)->curframe + xfer->nframes; 2318 if (i >= UHCI_VFRAMELIST_COUNT) 2319 i -= UHCI_VFRAMELIST_COUNT; 2320 end = upipe->u.iso.stds[i]; 2321 2322 #ifdef DIAGNOSTIC 2323 if (end == NULL) { 2324 printf("uhci_device_isoc_start: end == NULL\n"); 2325 return (USBD_INVAL); 2326 } 2327 #endif 2328 2329 s = splusb(); 2330 2331 /* Set up interrupt info. */ 2332 ii->xfer = xfer; 2333 ii->stdstart = end; 2334 ii->stdend = end; 2335 #ifdef DIAGNOSTIC 2336 if (!ii->isdone) 2337 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2338 ii->isdone = 0; 2339 #endif 2340 uhci_add_intr_info(sc, ii); 2341 2342 splx(s); 2343 2344 return (USBD_IN_PROGRESS); 2345 } 2346 2347 void 2348 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2349 { 2350 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2351 uhci_soft_td_t **stds = upipe->u.iso.stds; 2352 uhci_soft_td_t *std; 2353 int i, n, s, nframes, maxlen, len; 2354 2355 s = splusb(); 2356 2357 /* Transfer is already done. */ 2358 if (xfer->status != USBD_NOT_STARTED && 2359 xfer->status != USBD_IN_PROGRESS) { 2360 splx(s); 2361 return; 2362 } 2363 2364 /* Give xfer the requested abort code. */ 2365 xfer->status = USBD_CANCELLED; 2366 2367 /* make hardware ignore it, */ 2368 nframes = xfer->nframes; 2369 n = UXFER(xfer)->curframe; 2370 maxlen = 0; 2371 for (i = 0; i < nframes; i++) { 2372 std = stds[n]; 2373 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2374 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2375 if (len > maxlen) 2376 maxlen = len; 2377 if (++n >= UHCI_VFRAMELIST_COUNT) 2378 n = 0; 2379 } 2380 2381 /* and wait until we are sure the hardware has finished. */ 2382 delay(maxlen); 2383 2384 #ifdef DIAGNOSTIC 2385 UXFER(xfer)->iinfo.isdone = 1; 2386 #endif 2387 /* Run callback and remove from interrupt list. */ 2388 usb_transfer_complete(xfer); 2389 2390 splx(s); 2391 } 2392 2393 void 2394 uhci_device_isoc_close(usbd_pipe_handle pipe) 2395 { 2396 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2397 usbd_device_handle dev = upipe->pipe.device; 2398 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2399 uhci_soft_td_t *std, *vstd; 2400 struct iso *iso; 2401 int i, s; 2402 2403 /* 2404 * Make sure all TDs are marked as inactive. 2405 * Wait for completion. 2406 * Unschedule. 2407 * Deallocate. 2408 */ 2409 iso = &upipe->u.iso; 2410 2411 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2412 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2413 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2414 2415 s = splusb(); 2416 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2417 std = iso->stds[i]; 2418 for (vstd = sc->sc_vframes[i].htd; 2419 vstd != NULL && vstd->link.std != std; 2420 vstd = vstd->link.std) 2421 ; 2422 if (vstd == NULL) { 2423 /*panic*/ 2424 printf("uhci_device_isoc_close: %p not found\n", std); 2425 splx(s); 2426 return; 2427 } 2428 vstd->link = std->link; 2429 vstd->td.td_link = std->td.td_link; 2430 uhci_free_std(sc, std); 2431 } 2432 splx(s); 2433 2434 free(iso->stds, M_USBHC); 2435 } 2436 2437 usbd_status 2438 uhci_setup_isoc(usbd_pipe_handle pipe) 2439 { 2440 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2441 usbd_device_handle dev = upipe->pipe.device; 2442 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2443 int addr = upipe->pipe.device->address; 2444 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2445 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2446 uhci_soft_td_t *std, *vstd; 2447 u_int32_t token; 2448 struct iso *iso; 2449 int i, s; 2450 2451 iso = &upipe->u.iso; 2452 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2453 M_USBHC, M_WAITOK); 2454 2455 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2456 UHCI_TD_OUT(0, endpt, addr, 0); 2457 2458 /* Allocate the TDs and mark as inactive; */ 2459 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2460 std = uhci_alloc_std(sc); 2461 if (std == 0) 2462 goto bad; 2463 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2464 std->td.td_token = htole32(token); 2465 iso->stds[i] = std; 2466 } 2467 2468 /* Insert TDs into schedule. */ 2469 s = splusb(); 2470 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2471 std = iso->stds[i]; 2472 vstd = sc->sc_vframes[i].htd; 2473 std->link = vstd->link; 2474 std->td.td_link = vstd->td.td_link; 2475 vstd->link.std = std; 2476 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2477 } 2478 splx(s); 2479 2480 iso->next = -1; 2481 iso->inuse = 0; 2482 2483 return (USBD_NORMAL_COMPLETION); 2484 2485 bad: 2486 while (--i >= 0) 2487 uhci_free_std(sc, iso->stds[i]); 2488 free(iso->stds, M_USBHC); 2489 return (USBD_NOMEM); 2490 } 2491 2492 void 2493 uhci_device_isoc_done(usbd_xfer_handle xfer) 2494 { 2495 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2496 2497 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2498 2499 if (ii->xfer != xfer) 2500 /* Not on interrupt list, ignore it. */ 2501 return; 2502 2503 #ifdef DIAGNOSTIC 2504 if (xfer->busy_free != XFER_BUSY) { 2505 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2506 xfer, xfer->busy_free); 2507 return; 2508 } 2509 2510 if (ii->stdend == NULL) { 2511 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2512 #ifdef UHCI_DEBUG 2513 uhci_dump_ii(ii); 2514 #endif 2515 return; 2516 } 2517 #endif 2518 2519 /* Turn off the interrupt since it is active even if the TD is not. */ 2520 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2521 2522 uhci_del_intr_info(ii); /* remove from active list */ 2523 } 2524 2525 void 2526 uhci_device_intr_done(usbd_xfer_handle xfer) 2527 { 2528 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2529 uhci_softc_t *sc = ii->sc; 2530 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2531 uhci_soft_qh_t *sqh; 2532 int i, npoll; 2533 2534 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2535 2536 npoll = upipe->u.intr.npoll; 2537 for(i = 0; i < npoll; i++) { 2538 sqh = upipe->u.intr.qhs[i]; 2539 sqh->elink = NULL; 2540 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2541 } 2542 uhci_free_std_chain(sc, ii->stdstart, 0); 2543 2544 /* XXX Wasteful. */ 2545 if (xfer->pipe->repeat) { 2546 uhci_soft_td_t *data, *dataend; 2547 2548 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2549 2550 /* This alloc cannot fail since we freed the chain above. */ 2551 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2552 &xfer->dmabuf, &data, &dataend); 2553 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2554 2555 #ifdef UHCI_DEBUG 2556 if (uhcidebug > 10) { 2557 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2558 uhci_dump_tds(data); 2559 uhci_dump_qh(upipe->u.intr.qhs[0]); 2560 } 2561 #endif 2562 2563 ii->stdstart = data; 2564 ii->stdend = dataend; 2565 #ifdef DIAGNOSTIC 2566 if (!ii->isdone) { 2567 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2568 } 2569 ii->isdone = 0; 2570 #endif 2571 for (i = 0; i < npoll; i++) { 2572 sqh = upipe->u.intr.qhs[i]; 2573 sqh->elink = data; 2574 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2575 } 2576 xfer->status = USBD_IN_PROGRESS; 2577 /* The ii is already on the examined list, just leave it. */ 2578 } else { 2579 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2580 uhci_del_intr_info(ii); 2581 } 2582 } 2583 2584 /* Deallocate request data structures */ 2585 void 2586 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2587 { 2588 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2589 uhci_softc_t *sc = ii->sc; 2590 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2591 2592 #ifdef DIAGNOSTIC 2593 if (!(xfer->rqflags & URQ_REQUEST)) 2594 panic("uhci_ctrl_done: not a request\n"); 2595 #endif 2596 2597 uhci_del_intr_info(ii); /* remove from active list */ 2598 2599 if (upipe->pipe.device->lowspeed) 2600 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2601 else 2602 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2603 2604 if (upipe->u.ctl.length != 0) 2605 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2606 2607 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2608 } 2609 2610 /* Deallocate request data structures */ 2611 void 2612 uhci_device_bulk_done(usbd_xfer_handle xfer) 2613 { 2614 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2615 uhci_softc_t *sc = ii->sc; 2616 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2617 2618 uhci_del_intr_info(ii); /* remove from active list */ 2619 2620 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2621 2622 uhci_free_std_chain(sc, ii->stdstart, 0); 2623 2624 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2625 } 2626 2627 /* Add interrupt QH, called with vflock. */ 2628 void 2629 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2630 { 2631 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2632 uhci_soft_qh_t *eqh; 2633 2634 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2635 2636 eqh = vf->eqh; 2637 sqh->hlink = eqh->hlink; 2638 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2639 eqh->hlink = sqh; 2640 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2641 vf->eqh = sqh; 2642 vf->bandwidth++; 2643 } 2644 2645 /* Remove interrupt QH. */ 2646 void 2647 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2648 { 2649 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2650 uhci_soft_qh_t *pqh; 2651 2652 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2653 2654 /* See comment in uhci_remove_ctrl() */ 2655 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2656 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2657 delay(UHCI_QH_REMOVE_DELAY); 2658 } 2659 2660 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2661 pqh->hlink = sqh->hlink; 2662 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2663 delay(UHCI_QH_REMOVE_DELAY); 2664 if (vf->eqh == sqh) 2665 vf->eqh = pqh; 2666 vf->bandwidth--; 2667 } 2668 2669 usbd_status 2670 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2671 { 2672 uhci_soft_qh_t *sqh; 2673 int i, npoll, s; 2674 u_int bestbw, bw, bestoffs, offs; 2675 2676 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2677 if (ival == 0) { 2678 printf("uhci_setintr: 0 interval\n"); 2679 return (USBD_INVAL); 2680 } 2681 2682 if (ival > UHCI_VFRAMELIST_COUNT) 2683 ival = UHCI_VFRAMELIST_COUNT; 2684 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2685 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2686 2687 upipe->u.intr.npoll = npoll; 2688 upipe->u.intr.qhs = 2689 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2690 2691 /* 2692 * Figure out which offset in the schedule that has most 2693 * bandwidth left over. 2694 */ 2695 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2696 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2697 for (bw = i = 0; i < npoll; i++) 2698 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2699 if (bw < bestbw) { 2700 bestbw = bw; 2701 bestoffs = offs; 2702 } 2703 } 2704 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2705 2706 for(i = 0; i < npoll; i++) { 2707 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2708 sqh->elink = NULL; 2709 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2710 sqh->pos = MOD(i * ival + bestoffs); 2711 } 2712 #undef MOD 2713 2714 s = splusb(); 2715 /* Enter QHs into the controller data structures. */ 2716 for(i = 0; i < npoll; i++) 2717 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2718 splx(s); 2719 2720 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2721 return (USBD_NORMAL_COMPLETION); 2722 } 2723 2724 /* Open a new pipe. */ 2725 usbd_status 2726 uhci_open(usbd_pipe_handle pipe) 2727 { 2728 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2729 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2730 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2731 usbd_status err; 2732 int ival; 2733 2734 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2735 pipe, pipe->device->address, 2736 ed->bEndpointAddress, sc->sc_addr)); 2737 2738 upipe->aborting = 0; 2739 upipe->nexttoggle = 0; 2740 2741 if (pipe->device->address == sc->sc_addr) { 2742 switch (ed->bEndpointAddress) { 2743 case USB_CONTROL_ENDPOINT: 2744 pipe->methods = &uhci_root_ctrl_methods; 2745 break; 2746 case UE_DIR_IN | UHCI_INTR_ENDPT: 2747 pipe->methods = &uhci_root_intr_methods; 2748 break; 2749 default: 2750 return (USBD_INVAL); 2751 } 2752 } else { 2753 switch (ed->bmAttributes & UE_XFERTYPE) { 2754 case UE_CONTROL: 2755 pipe->methods = &uhci_device_ctrl_methods; 2756 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2757 if (upipe->u.ctl.sqh == NULL) 2758 goto bad; 2759 upipe->u.ctl.setup = uhci_alloc_std(sc); 2760 if (upipe->u.ctl.setup == NULL) { 2761 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2762 goto bad; 2763 } 2764 upipe->u.ctl.stat = uhci_alloc_std(sc); 2765 if (upipe->u.ctl.stat == NULL) { 2766 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2767 uhci_free_std(sc, upipe->u.ctl.setup); 2768 goto bad; 2769 } 2770 err = usb_allocmem(&sc->sc_bus, 2771 sizeof(usb_device_request_t), 2772 0, &upipe->u.ctl.reqdma); 2773 if (err) { 2774 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2775 uhci_free_std(sc, upipe->u.ctl.setup); 2776 uhci_free_std(sc, upipe->u.ctl.stat); 2777 goto bad; 2778 } 2779 break; 2780 case UE_INTERRUPT: 2781 pipe->methods = &uhci_device_intr_methods; 2782 ival = pipe->interval; 2783 if (ival == USBD_DEFAULT_INTERVAL) 2784 ival = ed->bInterval; 2785 return (uhci_device_setintr(sc, upipe, ival)); 2786 case UE_ISOCHRONOUS: 2787 pipe->methods = &uhci_device_isoc_methods; 2788 return (uhci_setup_isoc(pipe)); 2789 case UE_BULK: 2790 pipe->methods = &uhci_device_bulk_methods; 2791 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2792 if (upipe->u.bulk.sqh == NULL) 2793 goto bad; 2794 break; 2795 } 2796 } 2797 return (USBD_NORMAL_COMPLETION); 2798 2799 bad: 2800 return (USBD_NOMEM); 2801 } 2802 2803 /* 2804 * Data structures and routines to emulate the root hub. 2805 */ 2806 usb_device_descriptor_t uhci_devd = { 2807 USB_DEVICE_DESCRIPTOR_SIZE, 2808 UDESC_DEVICE, /* type */ 2809 {0x00, 0x01}, /* USB version */ 2810 UDCLASS_HUB, /* class */ 2811 UDSUBCLASS_HUB, /* subclass */ 2812 0, /* protocol */ 2813 64, /* max packet */ 2814 {0},{0},{0x00,0x01}, /* device id */ 2815 1,2,0, /* string indicies */ 2816 1 /* # of configurations */ 2817 }; 2818 2819 usb_config_descriptor_t uhci_confd = { 2820 USB_CONFIG_DESCRIPTOR_SIZE, 2821 UDESC_CONFIG, 2822 {USB_CONFIG_DESCRIPTOR_SIZE + 2823 USB_INTERFACE_DESCRIPTOR_SIZE + 2824 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2825 1, 2826 1, 2827 0, 2828 UC_SELF_POWERED, 2829 0 /* max power */ 2830 }; 2831 2832 usb_interface_descriptor_t uhci_ifcd = { 2833 USB_INTERFACE_DESCRIPTOR_SIZE, 2834 UDESC_INTERFACE, 2835 0, 2836 0, 2837 1, 2838 UICLASS_HUB, 2839 UISUBCLASS_HUB, 2840 0, 2841 0 2842 }; 2843 2844 usb_endpoint_descriptor_t uhci_endpd = { 2845 USB_ENDPOINT_DESCRIPTOR_SIZE, 2846 UDESC_ENDPOINT, 2847 UE_DIR_IN | UHCI_INTR_ENDPT, 2848 UE_INTERRUPT, 2849 {8}, 2850 255 2851 }; 2852 2853 usb_hub_descriptor_t uhci_hubd_piix = { 2854 USB_HUB_DESCRIPTOR_SIZE, 2855 UDESC_HUB, 2856 2, 2857 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2858 50, /* power on to power good */ 2859 0, 2860 { 0x00 }, /* both ports are removable */ 2861 }; 2862 2863 int 2864 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2865 { 2866 int i; 2867 2868 if (l == 0) 2869 return (0); 2870 p->bLength = 2 * strlen(s) + 2; 2871 if (l == 1) 2872 return (1); 2873 p->bDescriptorType = UDESC_STRING; 2874 l -= 2; 2875 for (i = 0; s[i] && l > 1; i++, l -= 2) 2876 USETW2(p->bString[i], 0, s[i]); 2877 return (2*i+2); 2878 } 2879 2880 /* 2881 * Simulate a hardware hub by handling all the necessary requests. 2882 */ 2883 usbd_status 2884 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2885 { 2886 usbd_status err; 2887 2888 /* Insert last in queue. */ 2889 err = usb_insert_transfer(xfer); 2890 if (err) 2891 return (err); 2892 2893 /* 2894 * Pipe isn't running (otherwise err would be USBD_INPROG), 2895 * so start it first. 2896 */ 2897 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2898 } 2899 2900 usbd_status 2901 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2902 { 2903 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2904 usb_device_request_t *req; 2905 void *buf = NULL; 2906 int port, x; 2907 int s, len, value, index, status, change, l, totlen = 0; 2908 usb_port_status_t ps; 2909 usbd_status err; 2910 2911 if (sc->sc_dying) 2912 return (USBD_IOERROR); 2913 2914 #ifdef DIAGNOSTIC 2915 if (!(xfer->rqflags & URQ_REQUEST)) 2916 panic("uhci_root_ctrl_transfer: not a request\n"); 2917 #endif 2918 req = &xfer->request; 2919 2920 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2921 req->bmRequestType, req->bRequest)); 2922 2923 len = UGETW(req->wLength); 2924 value = UGETW(req->wValue); 2925 index = UGETW(req->wIndex); 2926 2927 if (len != 0) 2928 buf = KERNADDR(&xfer->dmabuf); 2929 2930 #define C(x,y) ((x) | ((y) << 8)) 2931 switch(C(req->bRequest, req->bmRequestType)) { 2932 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2933 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2934 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2935 /* 2936 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2937 * for the integrated root hub. 2938 */ 2939 break; 2940 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2941 if (len > 0) { 2942 *(u_int8_t *)buf = sc->sc_conf; 2943 totlen = 1; 2944 } 2945 break; 2946 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2947 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2948 switch(value >> 8) { 2949 case UDESC_DEVICE: 2950 if ((value & 0xff) != 0) { 2951 err = USBD_IOERROR; 2952 goto ret; 2953 } 2954 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2955 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2956 memcpy(buf, &uhci_devd, l); 2957 break; 2958 case UDESC_CONFIG: 2959 if ((value & 0xff) != 0) { 2960 err = USBD_IOERROR; 2961 goto ret; 2962 } 2963 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2964 memcpy(buf, &uhci_confd, l); 2965 buf = (char *)buf + l; 2966 len -= l; 2967 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2968 totlen += l; 2969 memcpy(buf, &uhci_ifcd, l); 2970 buf = (char *)buf + l; 2971 len -= l; 2972 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2973 totlen += l; 2974 memcpy(buf, &uhci_endpd, l); 2975 break; 2976 case UDESC_STRING: 2977 if (len == 0) 2978 break; 2979 *(u_int8_t *)buf = 0; 2980 totlen = 1; 2981 switch (value & 0xff) { 2982 case 1: /* Vendor */ 2983 totlen = uhci_str(buf, len, sc->sc_vendor); 2984 break; 2985 case 2: /* Product */ 2986 totlen = uhci_str(buf, len, "UHCI root hub"); 2987 break; 2988 } 2989 break; 2990 default: 2991 err = USBD_IOERROR; 2992 goto ret; 2993 } 2994 break; 2995 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2996 if (len > 0) { 2997 *(u_int8_t *)buf = 0; 2998 totlen = 1; 2999 } 3000 break; 3001 case C(UR_GET_STATUS, UT_READ_DEVICE): 3002 if (len > 1) { 3003 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3004 totlen = 2; 3005 } 3006 break; 3007 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3008 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3009 if (len > 1) { 3010 USETW(((usb_status_t *)buf)->wStatus, 0); 3011 totlen = 2; 3012 } 3013 break; 3014 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3015 if (value >= USB_MAX_DEVICES) { 3016 err = USBD_IOERROR; 3017 goto ret; 3018 } 3019 sc->sc_addr = value; 3020 break; 3021 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3022 if (value != 0 && value != 1) { 3023 err = USBD_IOERROR; 3024 goto ret; 3025 } 3026 sc->sc_conf = value; 3027 break; 3028 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3029 break; 3030 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3031 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3032 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3033 err = USBD_IOERROR; 3034 goto ret; 3035 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3036 break; 3037 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3038 break; 3039 /* Hub requests */ 3040 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3041 break; 3042 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3043 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3044 "port=%d feature=%d\n", 3045 index, value)); 3046 if (index == 1) 3047 port = UHCI_PORTSC1; 3048 else if (index == 2) 3049 port = UHCI_PORTSC2; 3050 else { 3051 err = USBD_IOERROR; 3052 goto ret; 3053 } 3054 switch(value) { 3055 case UHF_PORT_ENABLE: 3056 x = UREAD2(sc, port); 3057 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3058 break; 3059 case UHF_PORT_SUSPEND: 3060 x = UREAD2(sc, port); 3061 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3062 break; 3063 case UHF_PORT_RESET: 3064 x = UREAD2(sc, port); 3065 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3066 break; 3067 case UHF_C_PORT_CONNECTION: 3068 x = UREAD2(sc, port); 3069 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3070 break; 3071 case UHF_C_PORT_ENABLE: 3072 x = UREAD2(sc, port); 3073 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3074 break; 3075 case UHF_C_PORT_OVER_CURRENT: 3076 x = UREAD2(sc, port); 3077 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3078 break; 3079 case UHF_C_PORT_RESET: 3080 sc->sc_isreset = 0; 3081 err = USBD_NORMAL_COMPLETION; 3082 goto ret; 3083 case UHF_PORT_CONNECTION: 3084 case UHF_PORT_OVER_CURRENT: 3085 case UHF_PORT_POWER: 3086 case UHF_PORT_LOW_SPEED: 3087 case UHF_C_PORT_SUSPEND: 3088 default: 3089 err = USBD_IOERROR; 3090 goto ret; 3091 } 3092 break; 3093 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3094 if (index == 1) 3095 port = UHCI_PORTSC1; 3096 else if (index == 2) 3097 port = UHCI_PORTSC2; 3098 else { 3099 err = USBD_IOERROR; 3100 goto ret; 3101 } 3102 if (len > 0) { 3103 *(u_int8_t *)buf = 3104 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3105 UHCI_PORTSC_LS_SHIFT; 3106 totlen = 1; 3107 } 3108 break; 3109 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3110 if (value != 0) { 3111 err = USBD_IOERROR; 3112 goto ret; 3113 } 3114 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3115 totlen = l; 3116 memcpy(buf, &uhci_hubd_piix, l); 3117 break; 3118 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3119 if (len != 4) { 3120 err = USBD_IOERROR; 3121 goto ret; 3122 } 3123 memset(buf, 0, len); 3124 totlen = len; 3125 break; 3126 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3127 if (index == 1) 3128 port = UHCI_PORTSC1; 3129 else if (index == 2) 3130 port = UHCI_PORTSC2; 3131 else { 3132 err = USBD_IOERROR; 3133 goto ret; 3134 } 3135 if (len != 4) { 3136 err = USBD_IOERROR; 3137 goto ret; 3138 } 3139 x = UREAD2(sc, port); 3140 status = change = 0; 3141 if (x & UHCI_PORTSC_CCS ) 3142 status |= UPS_CURRENT_CONNECT_STATUS; 3143 if (x & UHCI_PORTSC_CSC ) 3144 change |= UPS_C_CONNECT_STATUS; 3145 if (x & UHCI_PORTSC_PE ) 3146 status |= UPS_PORT_ENABLED; 3147 if (x & UHCI_PORTSC_POEDC) 3148 change |= UPS_C_PORT_ENABLED; 3149 if (x & UHCI_PORTSC_OCI ) 3150 status |= UPS_OVERCURRENT_INDICATOR; 3151 if (x & UHCI_PORTSC_OCIC ) 3152 change |= UPS_C_OVERCURRENT_INDICATOR; 3153 if (x & UHCI_PORTSC_SUSP ) 3154 status |= UPS_SUSPEND; 3155 if (x & UHCI_PORTSC_LSDA ) 3156 status |= UPS_LOW_SPEED; 3157 status |= UPS_PORT_POWER; 3158 if (sc->sc_isreset) 3159 change |= UPS_C_PORT_RESET; 3160 USETW(ps.wPortStatus, status); 3161 USETW(ps.wPortChange, change); 3162 l = min(len, sizeof ps); 3163 memcpy(buf, &ps, l); 3164 totlen = l; 3165 break; 3166 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3167 err = USBD_IOERROR; 3168 goto ret; 3169 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3170 break; 3171 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3172 if (index == 1) 3173 port = UHCI_PORTSC1; 3174 else if (index == 2) 3175 port = UHCI_PORTSC2; 3176 else { 3177 err = USBD_IOERROR; 3178 goto ret; 3179 } 3180 switch(value) { 3181 case UHF_PORT_ENABLE: 3182 x = UREAD2(sc, port); 3183 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3184 break; 3185 case UHF_PORT_SUSPEND: 3186 x = UREAD2(sc, port); 3187 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3188 break; 3189 case UHF_PORT_RESET: 3190 x = UREAD2(sc, port); 3191 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3192 usb_delay_ms(&sc->sc_bus, 50); /*XXX USB v1.1 7.1.7.3 */ 3193 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3194 delay(100); 3195 x = UREAD2(sc, port); 3196 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3197 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3198 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3199 index, UREAD2(sc, port))); 3200 sc->sc_isreset = 1; 3201 break; 3202 case UHF_PORT_POWER: 3203 /* Pretend we turned on power */ 3204 err = USBD_NORMAL_COMPLETION; 3205 goto ret; 3206 case UHF_C_PORT_CONNECTION: 3207 case UHF_C_PORT_ENABLE: 3208 case UHF_C_PORT_OVER_CURRENT: 3209 case UHF_PORT_CONNECTION: 3210 case UHF_PORT_OVER_CURRENT: 3211 case UHF_PORT_LOW_SPEED: 3212 case UHF_C_PORT_SUSPEND: 3213 case UHF_C_PORT_RESET: 3214 default: 3215 err = USBD_IOERROR; 3216 goto ret; 3217 } 3218 break; 3219 default: 3220 err = USBD_IOERROR; 3221 goto ret; 3222 } 3223 xfer->actlen = totlen; 3224 err = USBD_NORMAL_COMPLETION; 3225 ret: 3226 xfer->status = err; 3227 s = splusb(); 3228 usb_transfer_complete(xfer); 3229 splx(s); 3230 return (USBD_IN_PROGRESS); 3231 } 3232 3233 /* Abort a root control request. */ 3234 void 3235 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3236 { 3237 /* Nothing to do, all transfers are synchronous. */ 3238 } 3239 3240 /* Close the root pipe. */ 3241 void 3242 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3243 { 3244 DPRINTF(("uhci_root_ctrl_close\n")); 3245 } 3246 3247 /* Abort a root interrupt request. */ 3248 void 3249 uhci_root_intr_abort(usbd_xfer_handle xfer) 3250 { 3251 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3252 3253 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3254 sc->sc_intr_xfer = NULL; 3255 3256 if (xfer->pipe->intrxfer == xfer) { 3257 DPRINTF(("uhci_root_intr_abort: remove\n")); 3258 xfer->pipe->intrxfer = 0; 3259 } 3260 xfer->status = USBD_CANCELLED; 3261 #ifdef DIAGNOSTIC 3262 UXFER(xfer)->iinfo.isdone = 1; 3263 #endif 3264 usb_transfer_complete(xfer); 3265 } 3266 3267 usbd_status 3268 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3269 { 3270 usbd_status err; 3271 3272 /* Insert last in queue. */ 3273 err = usb_insert_transfer(xfer); 3274 if (err) 3275 return (err); 3276 3277 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3278 * start first 3279 */ 3280 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3281 } 3282 3283 /* Start a transfer on the root interrupt pipe */ 3284 usbd_status 3285 uhci_root_intr_start(usbd_xfer_handle xfer) 3286 { 3287 usbd_pipe_handle pipe = xfer->pipe; 3288 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3289 3290 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3291 xfer, xfer->length, xfer->flags)); 3292 3293 if (sc->sc_dying) 3294 return (USBD_IOERROR); 3295 3296 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3297 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3298 sc->sc_intr_xfer = xfer; 3299 return (USBD_IN_PROGRESS); 3300 } 3301 3302 /* Close the root interrupt pipe. */ 3303 void 3304 uhci_root_intr_close(usbd_pipe_handle pipe) 3305 { 3306 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3307 3308 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3309 sc->sc_intr_xfer = NULL; 3310 DPRINTF(("uhci_root_intr_close\n")); 3311 } 3312
Indexes created Tue Sep 23 02:09:52 GMT 2025