1 /* $NetBSD: uhci.c,v 1.164 2002/09/29 21:13:01 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@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://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/data/usbspec.zip 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/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.164 2002/09/29 21:13:01 augustss Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/malloc.h> 58 #if defined(__NetBSD__) || defined(__OpenBSD__) 59 #include <sys/device.h> 60 #include <sys/select.h> 61 #elif defined(__FreeBSD__) 62 #include <sys/module.h> 63 #include <sys/bus.h> 64 #include <machine/bus_pio.h> 65 #if defined(DIAGNOSTIC) && defined(__i386__) 66 #include <machine/cpu.h> 67 #endif 68 #endif 69 #include <sys/proc.h> 70 #include <sys/queue.h> 71 72 #include <machine/bus.h> 73 #include <machine/endian.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdivar.h> 78 #include <dev/usb/usb_mem.h> 79 #include <dev/usb/usb_quirks.h> 80 81 #include <dev/usb/uhcireg.h> 82 #include <dev/usb/uhcivar.h> 83 84 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 85 /*#define UHCI_CTL_LOOP */ 86 87 #if defined(__FreeBSD__) 88 #include <machine/clock.h> 89 90 #define delay(d) DELAY(d) 91 #endif 92 93 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data strored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 uhci_soft_qh_t **qhs; 149 } intr; 150 /* Bulk pipe */ 151 struct { 152 uhci_soft_qh_t *sqh; 153 u_int length; 154 int isread; 155 } bulk; 156 /* Iso pipe */ 157 struct iso { 158 uhci_soft_td_t **stds; 159 int next, inuse; 160 } iso; 161 } u; 162 }; 163 164 Static void uhci_globalreset(uhci_softc_t *); 165 Static void uhci_reset(uhci_softc_t *); 166 Static void uhci_shutdown(void *v); 167 Static void uhci_power(int, void *); 168 Static usbd_status uhci_run(uhci_softc_t *, int run); 169 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 170 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 171 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 172 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 173 #if 0 174 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 175 uhci_intr_info_t *); 176 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 177 #endif 178 179 Static void uhci_free_std_chain(uhci_softc_t *, 180 uhci_soft_td_t *, uhci_soft_td_t *); 181 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 182 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 183 uhci_soft_td_t **, uhci_soft_td_t **); 184 Static void uhci_poll_hub(void *); 185 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 186 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 187 Static void uhci_idone(uhci_intr_info_t *); 188 189 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 190 191 Static void uhci_timeout(void *); 192 Static void uhci_timeout_task(void *); 193 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 194 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 197 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 199 Static int uhci_str(usb_string_descriptor_t *, int, char *); 200 Static void uhci_add_loop(uhci_softc_t *sc); 201 Static void uhci_rem_loop(uhci_softc_t *sc); 202 203 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 204 Static void uhci_device_isoc_enter(usbd_xfer_handle); 205 206 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 207 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 208 209 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 210 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 211 212 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 213 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 214 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 215 Static void uhci_device_ctrl_close(usbd_pipe_handle); 216 Static void uhci_device_ctrl_done(usbd_xfer_handle); 217 218 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 219 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 220 Static void uhci_device_intr_abort(usbd_xfer_handle); 221 Static void uhci_device_intr_close(usbd_pipe_handle); 222 Static void uhci_device_intr_done(usbd_xfer_handle); 223 224 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 225 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 226 Static void uhci_device_bulk_abort(usbd_xfer_handle); 227 Static void uhci_device_bulk_close(usbd_pipe_handle); 228 Static void uhci_device_bulk_done(usbd_xfer_handle); 229 230 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 231 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 232 Static void uhci_device_isoc_abort(usbd_xfer_handle); 233 Static void uhci_device_isoc_close(usbd_pipe_handle); 234 Static void uhci_device_isoc_done(usbd_xfer_handle); 235 236 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 237 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 238 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 239 Static void uhci_root_ctrl_close(usbd_pipe_handle); 240 Static void uhci_root_ctrl_done(usbd_xfer_handle); 241 242 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 243 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 244 Static void uhci_root_intr_abort(usbd_xfer_handle); 245 Static void uhci_root_intr_close(usbd_pipe_handle); 246 Static void uhci_root_intr_done(usbd_xfer_handle); 247 248 Static usbd_status uhci_open(usbd_pipe_handle); 249 Static void uhci_poll(struct usbd_bus *); 250 Static void uhci_softintr(void *); 251 252 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 253 254 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 255 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 257 struct uhci_pipe *pipe, int ival); 258 259 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 260 Static void uhci_noop(usbd_pipe_handle pipe); 261 262 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 263 uhci_soft_qh_t *); 264 265 #ifdef UHCI_DEBUG 266 Static void uhci_dump_all(uhci_softc_t *); 267 Static void uhci_dumpregs(uhci_softc_t *); 268 Static void uhci_dump_qhs(uhci_soft_qh_t *); 269 Static void uhci_dump_qh(uhci_soft_qh_t *); 270 Static void uhci_dump_tds(uhci_soft_td_t *); 271 Static void uhci_dump_td(uhci_soft_td_t *); 272 Static void uhci_dump_ii(uhci_intr_info_t *ii); 273 void uhci_dump(void); 274 #endif 275 276 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 277 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 278 #define UWRITE1(sc, r, x) \ 279 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 280 #define UWRITE2(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 282 #define UWRITE4(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 284 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 285 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 286 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 287 288 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 289 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 290 291 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 292 293 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 294 295 #define UHCI_INTR_ENDPT 1 296 297 struct usbd_bus_methods uhci_bus_methods = { 298 uhci_open, 299 uhci_softintr, 300 uhci_poll, 301 uhci_allocm, 302 uhci_freem, 303 uhci_allocx, 304 uhci_freex, 305 }; 306 307 struct usbd_pipe_methods uhci_root_ctrl_methods = { 308 uhci_root_ctrl_transfer, 309 uhci_root_ctrl_start, 310 uhci_root_ctrl_abort, 311 uhci_root_ctrl_close, 312 uhci_noop, 313 uhci_root_ctrl_done, 314 }; 315 316 struct usbd_pipe_methods uhci_root_intr_methods = { 317 uhci_root_intr_transfer, 318 uhci_root_intr_start, 319 uhci_root_intr_abort, 320 uhci_root_intr_close, 321 uhci_noop, 322 uhci_root_intr_done, 323 }; 324 325 struct usbd_pipe_methods uhci_device_ctrl_methods = { 326 uhci_device_ctrl_transfer, 327 uhci_device_ctrl_start, 328 uhci_device_ctrl_abort, 329 uhci_device_ctrl_close, 330 uhci_noop, 331 uhci_device_ctrl_done, 332 }; 333 334 struct usbd_pipe_methods uhci_device_intr_methods = { 335 uhci_device_intr_transfer, 336 uhci_device_intr_start, 337 uhci_device_intr_abort, 338 uhci_device_intr_close, 339 uhci_device_clear_toggle, 340 uhci_device_intr_done, 341 }; 342 343 struct usbd_pipe_methods uhci_device_bulk_methods = { 344 uhci_device_bulk_transfer, 345 uhci_device_bulk_start, 346 uhci_device_bulk_abort, 347 uhci_device_bulk_close, 348 uhci_device_clear_toggle, 349 uhci_device_bulk_done, 350 }; 351 352 struct usbd_pipe_methods uhci_device_isoc_methods = { 353 uhci_device_isoc_transfer, 354 uhci_device_isoc_start, 355 uhci_device_isoc_abort, 356 uhci_device_isoc_close, 357 uhci_noop, 358 uhci_device_isoc_done, 359 }; 360 361 #define uhci_add_intr_info(sc, ii) \ 362 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 363 #define uhci_del_intr_info(ii) \ 364 LIST_REMOVE((ii), list) 365 366 Static __inline__ uhci_soft_qh_t * 367 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 368 { 369 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 370 371 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 372 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 373 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 374 printf("uhci_find_prev_qh: QH not found\n"); 375 return (NULL); 376 } 377 #endif 378 } 379 return (pqh); 380 } 381 382 void 383 uhci_globalreset(uhci_softc_t *sc) 384 { 385 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 386 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 387 UHCICMD(sc, 0); /* do nothing */ 388 } 389 390 usbd_status 391 uhci_init(uhci_softc_t *sc) 392 { 393 usbd_status err; 394 int i, j; 395 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 396 uhci_soft_td_t *std; 397 398 DPRINTFN(1,("uhci_init: start\n")); 399 400 #ifdef UHCI_DEBUG 401 thesc = sc; 402 403 if (uhcidebug > 2) 404 uhci_dumpregs(sc); 405 #endif 406 407 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 408 uhci_globalreset(sc); /* reset the controller */ 409 uhci_reset(sc); 410 411 /* Allocate and initialize real frame array. */ 412 err = usb_allocmem(&sc->sc_bus, 413 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 414 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 415 if (err) 416 return (err); 417 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 418 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 419 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 420 421 /* 422 * Allocate a TD, inactive, that hangs from the last QH. 423 * This is to avoid a bug in the PIIX that makes it run berserk 424 * otherwise. 425 */ 426 std = uhci_alloc_std(sc); 427 if (std == NULL) 428 return (USBD_NOMEM); 429 std->link.std = NULL; 430 std->td.td_link = htole32(UHCI_PTR_T); 431 std->td.td_status = htole32(0); /* inactive */ 432 std->td.td_token = htole32(0); 433 std->td.td_buffer = htole32(0); 434 435 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 436 lsqh = uhci_alloc_sqh(sc); 437 if (lsqh == NULL) 438 return (USBD_NOMEM); 439 lsqh->hlink = NULL; 440 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 441 lsqh->elink = std; 442 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 443 sc->sc_last_qh = lsqh; 444 445 /* Allocate the dummy QH where bulk traffic will be queued. */ 446 bsqh = uhci_alloc_sqh(sc); 447 if (bsqh == NULL) 448 return (USBD_NOMEM); 449 bsqh->hlink = lsqh; 450 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 451 bsqh->elink = NULL; 452 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 453 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 454 455 /* Allocate dummy QH where high speed control traffic will be queued. */ 456 chsqh = uhci_alloc_sqh(sc); 457 if (chsqh == NULL) 458 return (USBD_NOMEM); 459 chsqh->hlink = bsqh; 460 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 461 chsqh->elink = NULL; 462 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 463 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 464 465 /* Allocate dummy QH where control traffic will be queued. */ 466 clsqh = uhci_alloc_sqh(sc); 467 if (clsqh == NULL) 468 return (USBD_NOMEM); 469 clsqh->hlink = bsqh; 470 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 471 clsqh->elink = NULL; 472 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 473 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 474 475 /* 476 * Make all (virtual) frame list pointers point to the interrupt 477 * queue heads and the interrupt queue heads at the control 478 * queue head and point the physical frame list to the virtual. 479 */ 480 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 481 std = uhci_alloc_std(sc); 482 sqh = uhci_alloc_sqh(sc); 483 if (std == NULL || sqh == NULL) 484 return (USBD_NOMEM); 485 std->link.sqh = sqh; 486 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 487 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 488 std->td.td_token = htole32(0); 489 std->td.td_buffer = htole32(0); 490 sqh->hlink = clsqh; 491 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 492 sqh->elink = NULL; 493 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 494 sc->sc_vframes[i].htd = std; 495 sc->sc_vframes[i].etd = std; 496 sc->sc_vframes[i].hqh = sqh; 497 sc->sc_vframes[i].eqh = sqh; 498 for (j = i; 499 j < UHCI_FRAMELIST_COUNT; 500 j += UHCI_VFRAMELIST_COUNT) 501 sc->sc_pframes[j] = htole32(std->physaddr); 502 } 503 504 LIST_INIT(&sc->sc_intrhead); 505 506 SIMPLEQ_INIT(&sc->sc_free_xfers); 507 508 usb_callout_init(sc->sc_poll_handle); 509 510 /* Set up the bus struct. */ 511 sc->sc_bus.methods = &uhci_bus_methods; 512 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 513 514 #if defined(__NetBSD__) || defined(__OpenBSD__) 515 sc->sc_suspend = PWR_RESUME; 516 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 517 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 518 #endif 519 520 DPRINTFN(1,("uhci_init: enabling\n")); 521 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 522 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 523 524 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 525 526 return (uhci_run(sc, 1)); /* and here we go... */ 527 } 528 529 #if defined(__NetBSD__) || defined(__OpenBSD__) 530 int 531 uhci_activate(device_ptr_t self, enum devact act) 532 { 533 struct uhci_softc *sc = (struct uhci_softc *)self; 534 int rv = 0; 535 536 switch (act) { 537 case DVACT_ACTIVATE: 538 return (EOPNOTSUPP); 539 break; 540 541 case DVACT_DEACTIVATE: 542 if (sc->sc_child != NULL) 543 rv = config_deactivate(sc->sc_child); 544 break; 545 } 546 return (rv); 547 } 548 549 int 550 uhci_detach(struct uhci_softc *sc, int flags) 551 { 552 usbd_xfer_handle xfer; 553 int rv = 0; 554 555 if (sc->sc_child != NULL) 556 rv = config_detach(sc->sc_child, flags); 557 558 if (rv != 0) 559 return (rv); 560 561 #if defined(__NetBSD__) || defined(__OpenBSD__) 562 powerhook_disestablish(sc->sc_powerhook); 563 shutdownhook_disestablish(sc->sc_shutdownhook); 564 #endif 565 566 /* Free all xfers associated with this HC. */ 567 for (;;) { 568 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 569 if (xfer == NULL) 570 break; 571 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 572 free(xfer, M_USB); 573 } 574 575 /* XXX free other data structures XXX */ 576 577 return (rv); 578 } 579 #endif 580 581 usbd_status 582 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 583 { 584 struct uhci_softc *sc = (struct uhci_softc *)bus; 585 u_int32_t n; 586 587 /* 588 * XXX 589 * Since we are allocating a buffer we can assume that we will 590 * need TDs for it. Since we don't want to allocate those from 591 * an interrupt context, we allocate them here and free them again. 592 * This is no guarantee that we'll get the TDs next time... 593 */ 594 n = size / 8; 595 if (n > 16) { 596 u_int32_t i; 597 uhci_soft_td_t **stds; 598 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 599 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 600 M_WAITOK|M_ZERO); 601 for(i=0; i < n; i++) 602 stds[i] = uhci_alloc_std(sc); 603 for(i=0; i < n; i++) 604 if (stds[i] != NULL) 605 uhci_free_std(sc, stds[i]); 606 free(stds, M_TEMP); 607 } 608 609 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 610 } 611 612 void 613 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 614 { 615 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 616 } 617 618 usbd_xfer_handle 619 uhci_allocx(struct usbd_bus *bus) 620 { 621 struct uhci_softc *sc = (struct uhci_softc *)bus; 622 usbd_xfer_handle xfer; 623 624 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 625 if (xfer != NULL) { 626 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 627 #ifdef DIAGNOSTIC 628 if (xfer->busy_free != XFER_FREE) { 629 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 630 xfer->busy_free); 631 } 632 #endif 633 } else { 634 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 635 } 636 if (xfer != NULL) { 637 memset(xfer, 0, sizeof (struct uhci_xfer)); 638 UXFER(xfer)->iinfo.sc = sc; 639 #ifdef DIAGNOSTIC 640 UXFER(xfer)->iinfo.isdone = 1; 641 xfer->busy_free = XFER_BUSY; 642 #endif 643 } 644 return (xfer); 645 } 646 647 void 648 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 649 { 650 struct uhci_softc *sc = (struct uhci_softc *)bus; 651 652 #ifdef DIAGNOSTIC 653 if (xfer->busy_free != XFER_BUSY) { 654 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 655 xfer->busy_free); 656 return; 657 } 658 xfer->busy_free = XFER_FREE; 659 if (!UXFER(xfer)->iinfo.isdone) { 660 printf("uhci_freex: !isdone\n"); 661 return; 662 } 663 #endif 664 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 665 } 666 667 /* 668 * Shut down the controller when the system is going down. 669 */ 670 void 671 uhci_shutdown(void *v) 672 { 673 uhci_softc_t *sc = v; 674 675 DPRINTF(("uhci_shutdown: stopping the HC\n")); 676 uhci_run(sc, 0); /* stop the controller */ 677 } 678 679 /* 680 * Handle suspend/resume. 681 * 682 * We need to switch to polling mode here, because this routine is 683 * called from an interrupt context. This is all right since we 684 * are almost suspended anyway. 685 */ 686 void 687 uhci_power(int why, void *v) 688 { 689 uhci_softc_t *sc = v; 690 int cmd; 691 int s; 692 693 s = splhardusb(); 694 cmd = UREAD2(sc, UHCI_CMD); 695 696 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 697 sc, why, sc->sc_suspend, cmd)); 698 699 switch (why) { 700 case PWR_SUSPEND: 701 case PWR_STANDBY: 702 #ifdef UHCI_DEBUG 703 if (uhcidebug > 2) 704 uhci_dumpregs(sc); 705 #endif 706 if (sc->sc_intr_xfer != NULL) 707 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 708 sc->sc_intr_xfer); 709 sc->sc_bus.use_polling++; 710 uhci_run(sc, 0); /* stop the controller */ 711 712 /* save some state if BIOS doesn't */ 713 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 714 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 715 716 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 717 718 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 719 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 720 sc->sc_suspend = why; 721 sc->sc_bus.use_polling--; 722 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 723 break; 724 case PWR_RESUME: 725 #ifdef DIAGNOSTIC 726 if (sc->sc_suspend == PWR_RESUME) 727 printf("uhci_power: weird, resume without suspend.\n"); 728 #endif 729 sc->sc_bus.use_polling++; 730 sc->sc_suspend = why; 731 if (cmd & UHCI_CMD_RS) 732 uhci_run(sc, 0); /* in case BIOS has started it */ 733 734 /* restore saved state */ 735 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 736 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 737 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 738 739 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 740 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 741 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 742 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 743 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 744 uhci_run(sc, 1); /* and start traffic again */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 746 sc->sc_bus.use_polling--; 747 if (sc->sc_intr_xfer != NULL) 748 usb_callout(sc->sc_poll_handle, sc->sc_ival, 749 uhci_poll_hub, sc->sc_intr_xfer); 750 #ifdef UHCI_DEBUG 751 if (uhcidebug > 2) 752 uhci_dumpregs(sc); 753 #endif 754 break; 755 case PWR_SOFTSUSPEND: 756 case PWR_SOFTSTANDBY: 757 case PWR_SOFTRESUME: 758 break; 759 } 760 splx(s); 761 } 762 763 #ifdef UHCI_DEBUG 764 Static void 765 uhci_dumpregs(uhci_softc_t *sc) 766 { 767 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 768 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 769 USBDEVNAME(sc->sc_bus.bdev), 770 UREAD2(sc, UHCI_CMD), 771 UREAD2(sc, UHCI_STS), 772 UREAD2(sc, UHCI_INTR), 773 UREAD2(sc, UHCI_FRNUM), 774 UREAD4(sc, UHCI_FLBASEADDR), 775 UREAD1(sc, UHCI_SOF), 776 UREAD2(sc, UHCI_PORTSC1), 777 UREAD2(sc, UHCI_PORTSC2))); 778 } 779 780 void 781 uhci_dump_td(uhci_soft_td_t *p) 782 { 783 char sbuf[128], sbuf2[128]; 784 785 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 786 "token=0x%08lx buffer=0x%08lx\n", 787 p, (long)p->physaddr, 788 (long)le32toh(p->td.td_link), 789 (long)le32toh(p->td.td_status), 790 (long)le32toh(p->td.td_token), 791 (long)le32toh(p->td.td_buffer))); 792 793 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 794 sbuf, sizeof(sbuf)); 795 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 796 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 797 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 798 sbuf2, sizeof(sbuf2)); 799 800 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 801 "D=%d,maxlen=%d\n", sbuf, sbuf2, 802 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 803 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 804 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 805 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 806 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 807 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 808 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 809 } 810 811 void 812 uhci_dump_qh(uhci_soft_qh_t *sqh) 813 { 814 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 815 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 816 le32toh(sqh->qh.qh_elink))); 817 } 818 819 820 #if 1 821 void 822 uhci_dump(void) 823 { 824 uhci_dump_all(thesc); 825 } 826 #endif 827 828 void 829 uhci_dump_all(uhci_softc_t *sc) 830 { 831 uhci_dumpregs(sc); 832 printf("intrs=%d\n", sc->sc_bus.no_intrs); 833 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 834 uhci_dump_qh(sc->sc_lctl_start); 835 } 836 837 838 void 839 uhci_dump_qhs(uhci_soft_qh_t *sqh) 840 { 841 uhci_dump_qh(sqh); 842 843 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 844 * Traverses sideways first, then down. 845 * 846 * QH1 847 * QH2 848 * No QH 849 * TD2.1 850 * TD2.2 851 * TD1.1 852 * etc. 853 * 854 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 855 */ 856 857 858 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 859 uhci_dump_qhs(sqh->hlink); 860 else 861 DPRINTF(("No QH\n")); 862 863 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 864 uhci_dump_tds(sqh->elink); 865 else 866 DPRINTF(("No TD\n")); 867 } 868 869 void 870 uhci_dump_tds(uhci_soft_td_t *std) 871 { 872 uhci_soft_td_t *td; 873 874 for(td = std; td != NULL; td = td->link.std) { 875 uhci_dump_td(td); 876 877 /* Check whether the link pointer in this TD marks 878 * the link pointer as end of queue. This avoids 879 * printing the free list in case the queue/TD has 880 * already been moved there (seatbelt). 881 */ 882 if (le32toh(td->td.td_link) & UHCI_PTR_T || 883 le32toh(td->td.td_link) == 0) 884 break; 885 } 886 } 887 888 Static void 889 uhci_dump_ii(uhci_intr_info_t *ii) 890 { 891 usbd_pipe_handle pipe; 892 usb_endpoint_descriptor_t *ed; 893 usbd_device_handle dev; 894 895 #ifdef DIAGNOSTIC 896 #define DONE ii->isdone 897 #else 898 #define DONE 0 899 #endif 900 if (ii == NULL) { 901 printf("ii NULL\n"); 902 return; 903 } 904 if (ii->xfer == NULL) { 905 printf("ii %p: done=%d xfer=NULL\n", 906 ii, DONE); 907 return; 908 } 909 pipe = ii->xfer->pipe; 910 if (pipe == NULL) { 911 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 912 ii, DONE, ii->xfer); 913 return; 914 } 915 if (pipe->endpoint == NULL) { 916 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 917 ii, DONE, ii->xfer, pipe); 918 return; 919 } 920 if (pipe->device == NULL) { 921 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 922 ii, DONE, ii->xfer, pipe); 923 return; 924 } 925 ed = pipe->endpoint->edesc; 926 dev = pipe->device; 927 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", 928 ii, DONE, ii->xfer, dev, 929 UGETW(dev->ddesc.idVendor), 930 UGETW(dev->ddesc.idProduct), 931 dev->address, pipe, 932 ed->bEndpointAddress, ed->bmAttributes); 933 #undef DONE 934 } 935 936 void uhci_dump_iis(struct uhci_softc *sc); 937 void 938 uhci_dump_iis(struct uhci_softc *sc) 939 { 940 uhci_intr_info_t *ii; 941 942 printf("intr_info list:\n"); 943 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 944 uhci_dump_ii(ii); 945 } 946 947 void iidump(void); 948 void iidump(void) { uhci_dump_iis(thesc); } 949 950 #endif 951 952 /* 953 * This routine is executed periodically and simulates interrupts 954 * from the root controller interrupt pipe for port status change. 955 */ 956 void 957 uhci_poll_hub(void *addr) 958 { 959 usbd_xfer_handle xfer = addr; 960 usbd_pipe_handle pipe = xfer->pipe; 961 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 962 int s; 963 u_char *p; 964 965 DPRINTFN(20, ("uhci_poll_hub\n")); 966 967 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 968 969 p = KERNADDR(&xfer->dmabuf, 0); 970 p[0] = 0; 971 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 972 p[0] |= 1<<1; 973 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 974 p[0] |= 1<<2; 975 if (p[0] == 0) 976 /* No change, try again in a while */ 977 return; 978 979 xfer->actlen = 1; 980 xfer->status = USBD_NORMAL_COMPLETION; 981 s = splusb(); 982 xfer->device->bus->intr_context++; 983 usb_transfer_complete(xfer); 984 xfer->device->bus->intr_context--; 985 splx(s); 986 } 987 988 void 989 uhci_root_intr_done(usbd_xfer_handle xfer) 990 { 991 } 992 993 void 994 uhci_root_ctrl_done(usbd_xfer_handle xfer) 995 { 996 } 997 998 /* 999 * Let the last QH loop back to the high speed control transfer QH. 1000 * This is what intel calls "bandwidth reclamation" and improves 1001 * USB performance a lot for some devices. 1002 * If we are already looping, just count it. 1003 */ 1004 void 1005 uhci_add_loop(uhci_softc_t *sc) { 1006 #ifdef UHCI_DEBUG 1007 if (uhcinoloop) 1008 return; 1009 #endif 1010 if (++sc->sc_loops == 1) { 1011 DPRINTFN(5,("uhci_start_loop: add\n")); 1012 /* Note, we don't loop back the soft pointer. */ 1013 sc->sc_last_qh->qh.qh_hlink = 1014 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1015 } 1016 } 1017 1018 void 1019 uhci_rem_loop(uhci_softc_t *sc) { 1020 #ifdef UHCI_DEBUG 1021 if (uhcinoloop) 1022 return; 1023 #endif 1024 if (--sc->sc_loops == 0) { 1025 DPRINTFN(5,("uhci_end_loop: remove\n")); 1026 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1027 } 1028 } 1029 1030 /* Add high speed control QH, called at splusb(). */ 1031 void 1032 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1033 { 1034 uhci_soft_qh_t *eqh; 1035 1036 SPLUSBCHECK; 1037 1038 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1039 eqh = sc->sc_hctl_end; 1040 sqh->hlink = eqh->hlink; 1041 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1042 eqh->hlink = sqh; 1043 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1044 sc->sc_hctl_end = sqh; 1045 #ifdef UHCI_CTL_LOOP 1046 uhci_add_loop(sc); 1047 #endif 1048 } 1049 1050 /* Remove high speed control QH, called at splusb(). */ 1051 void 1052 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1053 { 1054 uhci_soft_qh_t *pqh; 1055 1056 SPLUSBCHECK; 1057 1058 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1059 #ifdef UHCI_CTL_LOOP 1060 uhci_rem_loop(sc); 1061 #endif 1062 /* 1063 * The T bit should be set in the elink of the QH so that the HC 1064 * doesn't follow the pointer. This condition may fail if the 1065 * the transferred packet was short so that the QH still points 1066 * at the last used TD. 1067 * In this case we set the T bit and wait a little for the HC 1068 * to stop looking at the TD. 1069 */ 1070 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1071 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1072 delay(UHCI_QH_REMOVE_DELAY); 1073 } 1074 1075 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1076 pqh->hlink = sqh->hlink; 1077 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1078 delay(UHCI_QH_REMOVE_DELAY); 1079 if (sc->sc_hctl_end == sqh) 1080 sc->sc_hctl_end = pqh; 1081 } 1082 1083 /* Add low speed control QH, called at splusb(). */ 1084 void 1085 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1086 { 1087 uhci_soft_qh_t *eqh; 1088 1089 SPLUSBCHECK; 1090 1091 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1092 eqh = sc->sc_lctl_end; 1093 sqh->hlink = eqh->hlink; 1094 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1095 eqh->hlink = sqh; 1096 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1097 sc->sc_lctl_end = sqh; 1098 } 1099 1100 /* Remove low speed control QH, called at splusb(). */ 1101 void 1102 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1103 { 1104 uhci_soft_qh_t *pqh; 1105 1106 SPLUSBCHECK; 1107 1108 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1109 /* See comment in uhci_remove_hs_ctrl() */ 1110 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1111 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1112 delay(UHCI_QH_REMOVE_DELAY); 1113 } 1114 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1115 pqh->hlink = sqh->hlink; 1116 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1117 delay(UHCI_QH_REMOVE_DELAY); 1118 if (sc->sc_lctl_end == sqh) 1119 sc->sc_lctl_end = pqh; 1120 } 1121 1122 /* Add bulk QH, called at splusb(). */ 1123 void 1124 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1125 { 1126 uhci_soft_qh_t *eqh; 1127 1128 SPLUSBCHECK; 1129 1130 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1131 eqh = sc->sc_bulk_end; 1132 sqh->hlink = eqh->hlink; 1133 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1134 eqh->hlink = sqh; 1135 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1136 sc->sc_bulk_end = sqh; 1137 uhci_add_loop(sc); 1138 } 1139 1140 /* Remove bulk QH, called at splusb(). */ 1141 void 1142 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1143 { 1144 uhci_soft_qh_t *pqh; 1145 1146 SPLUSBCHECK; 1147 1148 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1149 uhci_rem_loop(sc); 1150 /* See comment in uhci_remove_hs_ctrl() */ 1151 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1152 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1153 delay(UHCI_QH_REMOVE_DELAY); 1154 } 1155 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1156 pqh->hlink = sqh->hlink; 1157 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1158 delay(UHCI_QH_REMOVE_DELAY); 1159 if (sc->sc_bulk_end == sqh) 1160 sc->sc_bulk_end = pqh; 1161 } 1162 1163 Static int uhci_intr1(uhci_softc_t *); 1164 1165 int 1166 uhci_intr(void *arg) 1167 { 1168 uhci_softc_t *sc = arg; 1169 1170 if (sc->sc_dying) 1171 return (0); 1172 1173 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1174 if (sc->sc_bus.use_polling) { 1175 #ifdef DIAGNOSTIC 1176 printf("uhci_intr: ignored interrupt while polling\n"); 1177 #endif 1178 return (0); 1179 } 1180 return (uhci_intr1(sc)); 1181 } 1182 1183 int 1184 uhci_intr1(uhci_softc_t *sc) 1185 { 1186 int status; 1187 int ack; 1188 1189 #ifdef UHCI_DEBUG 1190 if (uhcidebug > 15) { 1191 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1192 uhci_dumpregs(sc); 1193 } 1194 #endif 1195 1196 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1197 if (status == 0) /* The interrupt was not for us. */ 1198 return (0); 1199 1200 if (sc->sc_suspend != PWR_RESUME) { 1201 printf("%s: interrupt while not operating ignored\n", 1202 USBDEVNAME(sc->sc_bus.bdev)); 1203 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1204 return (0); 1205 } 1206 1207 ack = 0; 1208 if (status & UHCI_STS_USBINT) 1209 ack |= UHCI_STS_USBINT; 1210 if (status & UHCI_STS_USBEI) 1211 ack |= UHCI_STS_USBEI; 1212 if (status & UHCI_STS_RD) { 1213 ack |= UHCI_STS_RD; 1214 #ifdef UHCI_DEBUG 1215 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1216 #endif 1217 } 1218 if (status & UHCI_STS_HSE) { 1219 ack |= UHCI_STS_HSE; 1220 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1221 } 1222 if (status & UHCI_STS_HCPE) { 1223 ack |= UHCI_STS_HCPE; 1224 printf("%s: host controller process error\n", 1225 USBDEVNAME(sc->sc_bus.bdev)); 1226 } 1227 if (status & UHCI_STS_HCH) { 1228 /* no acknowledge needed */ 1229 if (!sc->sc_dying) { 1230 printf("%s: host controller halted\n", 1231 USBDEVNAME(sc->sc_bus.bdev)); 1232 #ifdef UHCI_DEBUG 1233 uhci_dump_all(sc); 1234 #endif 1235 } 1236 sc->sc_dying = 1; 1237 } 1238 1239 if (!ack) 1240 return (0); /* nothing to acknowledge */ 1241 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1242 1243 sc->sc_bus.no_intrs++; 1244 usb_schedsoftintr(&sc->sc_bus); 1245 1246 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1247 1248 return (1); 1249 } 1250 1251 void 1252 uhci_softintr(void *v) 1253 { 1254 uhci_softc_t *sc = v; 1255 uhci_intr_info_t *ii; 1256 1257 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1258 sc->sc_bus.intr_context)); 1259 1260 sc->sc_bus.intr_context++; 1261 1262 /* 1263 * Interrupts on UHCI really suck. When the host controller 1264 * interrupts because a transfer is completed there is no 1265 * way of knowing which transfer it was. You can scan down 1266 * the TDs and QHs of the previous frame to limit the search, 1267 * but that assumes that the interrupt was not delayed by more 1268 * than 1 ms, which may not always be true (e.g. after debug 1269 * output on a slow console). 1270 * We scan all interrupt descriptors to see if any have 1271 * completed. 1272 */ 1273 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1274 uhci_check_intr(sc, ii); 1275 1276 #ifdef USB_USE_SOFTINTR 1277 if (sc->sc_softwake) { 1278 sc->sc_softwake = 0; 1279 wakeup(&sc->sc_softwake); 1280 } 1281 #endif /* USB_USE_SOFTINTR */ 1282 1283 sc->sc_bus.intr_context--; 1284 } 1285 1286 /* Check for an interrupt. */ 1287 void 1288 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1289 { 1290 uhci_soft_td_t *std, *lstd; 1291 u_int32_t status; 1292 1293 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1294 #ifdef DIAGNOSTIC 1295 if (ii == NULL) { 1296 printf("uhci_check_intr: no ii? %p\n", ii); 1297 return; 1298 } 1299 #endif 1300 if (ii->xfer->status == USBD_CANCELLED || 1301 ii->xfer->status == USBD_TIMEOUT) { 1302 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1303 return; 1304 } 1305 1306 if (ii->stdstart == NULL) 1307 return; 1308 lstd = ii->stdend; 1309 #ifdef DIAGNOSTIC 1310 if (lstd == NULL) { 1311 printf("uhci_check_intr: std==0\n"); 1312 return; 1313 } 1314 #endif 1315 /* 1316 * If the last TD is still active we need to check whether there 1317 * is a an error somewhere in the middle, or whether there was a 1318 * short packet (SPD and not ACTIVE). 1319 */ 1320 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1321 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1322 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1323 status = le32toh(std->td.td_status); 1324 /* If there's an active TD the xfer isn't done. */ 1325 if (status & UHCI_TD_ACTIVE) 1326 break; 1327 /* Any kind of error makes the xfer done. */ 1328 if (status & UHCI_TD_STALLED) 1329 goto done; 1330 /* We want short packets, and it is short: it's done */ 1331 if ((status & UHCI_TD_SPD) && 1332 UHCI_TD_GET_ACTLEN(status) < 1333 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1334 goto done; 1335 } 1336 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1337 ii, ii->stdstart)); 1338 return; 1339 } 1340 done: 1341 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1342 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1343 uhci_idone(ii); 1344 } 1345 1346 /* Called at splusb() */ 1347 void 1348 uhci_idone(uhci_intr_info_t *ii) 1349 { 1350 usbd_xfer_handle xfer = ii->xfer; 1351 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1352 uhci_soft_td_t *std; 1353 u_int32_t status = 0, nstatus; 1354 int actlen; 1355 1356 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1357 #ifdef DIAGNOSTIC 1358 { 1359 int s = splhigh(); 1360 if (ii->isdone) { 1361 splx(s); 1362 #ifdef UHCI_DEBUG 1363 printf("uhci_idone: ii is done!\n "); 1364 uhci_dump_ii(ii); 1365 #else 1366 printf("uhci_idone: ii=%p is done!\n", ii); 1367 #endif 1368 return; 1369 } 1370 ii->isdone = 1; 1371 splx(s); 1372 } 1373 #endif 1374 1375 if (xfer->nframes != 0) { 1376 /* Isoc transfer, do things differently. */ 1377 uhci_soft_td_t **stds = upipe->u.iso.stds; 1378 int i, n, nframes, len; 1379 1380 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1381 1382 nframes = xfer->nframes; 1383 actlen = 0; 1384 n = UXFER(xfer)->curframe; 1385 for (i = 0; i < nframes; i++) { 1386 std = stds[n]; 1387 #ifdef UHCI_DEBUG 1388 if (uhcidebug > 5) { 1389 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1390 uhci_dump_td(std); 1391 } 1392 #endif 1393 if (++n >= UHCI_VFRAMELIST_COUNT) 1394 n = 0; 1395 status = le32toh(std->td.td_status); 1396 len = UHCI_TD_GET_ACTLEN(status); 1397 xfer->frlengths[i] = len; 1398 actlen += len; 1399 } 1400 upipe->u.iso.inuse -= nframes; 1401 xfer->actlen = actlen; 1402 xfer->status = USBD_NORMAL_COMPLETION; 1403 goto end; 1404 } 1405 1406 #ifdef UHCI_DEBUG 1407 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1408 ii, xfer, upipe)); 1409 if (uhcidebug > 10) 1410 uhci_dump_tds(ii->stdstart); 1411 #endif 1412 1413 /* The transfer is done, compute actual length and status. */ 1414 actlen = 0; 1415 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1416 nstatus = le32toh(std->td.td_status); 1417 if (nstatus & UHCI_TD_ACTIVE) 1418 break; 1419 1420 status = nstatus; 1421 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1422 UHCI_TD_PID_SETUP) 1423 actlen += UHCI_TD_GET_ACTLEN(status); 1424 } 1425 /* If there are left over TDs we need to update the toggle. */ 1426 if (std != NULL) 1427 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1428 1429 status &= UHCI_TD_ERROR; 1430 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1431 actlen, status)); 1432 xfer->actlen = actlen; 1433 if (status != 0) { 1434 #ifdef UHCI_DEBUG 1435 char sbuf[128]; 1436 1437 bitmask_snprintf((u_int32_t)status, 1438 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1439 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1440 sbuf, sizeof(sbuf)); 1441 1442 DPRINTFN((status == UHCI_TD_STALLED)*10, 1443 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1444 "status 0x%s\n", 1445 xfer->pipe->device->address, 1446 xfer->pipe->endpoint->edesc->bEndpointAddress, 1447 sbuf)); 1448 #endif 1449 1450 if (status == UHCI_TD_STALLED) 1451 xfer->status = USBD_STALLED; 1452 else 1453 xfer->status = USBD_IOERROR; /* more info XXX */ 1454 } else { 1455 xfer->status = USBD_NORMAL_COMPLETION; 1456 } 1457 1458 end: 1459 usb_transfer_complete(xfer); 1460 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1461 } 1462 1463 /* 1464 * Called when a request does not complete. 1465 */ 1466 void 1467 uhci_timeout(void *addr) 1468 { 1469 uhci_intr_info_t *ii = addr; 1470 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1471 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1472 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1473 1474 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1475 1476 if (sc->sc_dying) { 1477 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1478 return; 1479 } 1480 1481 /* Execute the abort in a process context. */ 1482 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1483 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1484 } 1485 1486 void 1487 uhci_timeout_task(void *addr) 1488 { 1489 usbd_xfer_handle xfer = addr; 1490 int s; 1491 1492 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1493 1494 s = splusb(); 1495 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1496 splx(s); 1497 } 1498 1499 /* 1500 * Wait here until controller claims to have an interrupt. 1501 * Then call uhci_intr and return. Use timeout to avoid waiting 1502 * too long. 1503 * Only used during boot when interrupts are not enabled yet. 1504 */ 1505 void 1506 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1507 { 1508 int timo = xfer->timeout; 1509 uhci_intr_info_t *ii; 1510 1511 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1512 1513 xfer->status = USBD_IN_PROGRESS; 1514 for (; timo >= 0; timo--) { 1515 usb_delay_ms(&sc->sc_bus, 1); 1516 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1517 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1518 uhci_intr1(sc); 1519 if (xfer->status != USBD_IN_PROGRESS) 1520 return; 1521 } 1522 } 1523 1524 /* Timeout */ 1525 DPRINTF(("uhci_waitintr: timeout\n")); 1526 for (ii = LIST_FIRST(&sc->sc_intrhead); 1527 ii != NULL && ii->xfer != xfer; 1528 ii = LIST_NEXT(ii, list)) 1529 ; 1530 #ifdef DIAGNOSTIC 1531 if (ii == NULL) 1532 panic("uhci_waitintr: lost intr_info"); 1533 #endif 1534 uhci_idone(ii); 1535 } 1536 1537 void 1538 uhci_poll(struct usbd_bus *bus) 1539 { 1540 uhci_softc_t *sc = (uhci_softc_t *)bus; 1541 1542 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1543 uhci_intr1(sc); 1544 } 1545 1546 void 1547 uhci_reset(uhci_softc_t *sc) 1548 { 1549 int n; 1550 1551 UHCICMD(sc, UHCI_CMD_HCRESET); 1552 /* The reset bit goes low when the controller is done. */ 1553 for (n = 0; n < UHCI_RESET_TIMEOUT && 1554 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1555 usb_delay_ms(&sc->sc_bus, 1); 1556 if (n >= UHCI_RESET_TIMEOUT) 1557 printf("%s: controller did not reset\n", 1558 USBDEVNAME(sc->sc_bus.bdev)); 1559 } 1560 1561 usbd_status 1562 uhci_run(uhci_softc_t *sc, int run) 1563 { 1564 int s, n, running; 1565 u_int16_t cmd; 1566 1567 run = run != 0; 1568 s = splhardusb(); 1569 DPRINTF(("uhci_run: setting run=%d\n", run)); 1570 cmd = UREAD2(sc, UHCI_CMD); 1571 if (run) 1572 cmd |= UHCI_CMD_RS; 1573 else 1574 cmd &= ~UHCI_CMD_RS; 1575 UHCICMD(sc, cmd); 1576 for(n = 0; n < 10; n++) { 1577 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1578 /* return when we've entered the state we want */ 1579 if (run == running) { 1580 splx(s); 1581 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1582 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1583 return (USBD_NORMAL_COMPLETION); 1584 } 1585 usb_delay_ms(&sc->sc_bus, 1); 1586 } 1587 splx(s); 1588 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1589 run ? "start" : "stop"); 1590 return (USBD_IOERROR); 1591 } 1592 1593 /* 1594 * Memory management routines. 1595 * uhci_alloc_std allocates TDs 1596 * uhci_alloc_sqh allocates QHs 1597 * These two routines do their own free list management, 1598 * partly for speed, partly because allocating DMAable memory 1599 * has page size granularaity so much memory would be wasted if 1600 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1601 */ 1602 1603 uhci_soft_td_t * 1604 uhci_alloc_std(uhci_softc_t *sc) 1605 { 1606 uhci_soft_td_t *std; 1607 usbd_status err; 1608 int i, offs; 1609 usb_dma_t dma; 1610 1611 if (sc->sc_freetds == NULL) { 1612 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1613 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1614 UHCI_TD_ALIGN, &dma); 1615 if (err) 1616 return (0); 1617 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1618 offs = i * UHCI_STD_SIZE; 1619 std = KERNADDR(&dma, offs); 1620 std->physaddr = DMAADDR(&dma, offs); 1621 std->link.std = sc->sc_freetds; 1622 sc->sc_freetds = std; 1623 } 1624 } 1625 std = sc->sc_freetds; 1626 sc->sc_freetds = std->link.std; 1627 memset(&std->td, 0, sizeof(uhci_td_t)); 1628 return std; 1629 } 1630 1631 void 1632 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1633 { 1634 #ifdef DIAGNOSTIC 1635 #define TD_IS_FREE 0x12345678 1636 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1637 printf("uhci_free_std: freeing free TD %p\n", std); 1638 return; 1639 } 1640 std->td.td_token = htole32(TD_IS_FREE); 1641 #endif 1642 std->link.std = sc->sc_freetds; 1643 sc->sc_freetds = std; 1644 } 1645 1646 uhci_soft_qh_t * 1647 uhci_alloc_sqh(uhci_softc_t *sc) 1648 { 1649 uhci_soft_qh_t *sqh; 1650 usbd_status err; 1651 int i, offs; 1652 usb_dma_t dma; 1653 1654 if (sc->sc_freeqhs == NULL) { 1655 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1656 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1657 UHCI_QH_ALIGN, &dma); 1658 if (err) 1659 return (0); 1660 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1661 offs = i * UHCI_SQH_SIZE; 1662 sqh = KERNADDR(&dma, offs); 1663 sqh->physaddr = DMAADDR(&dma, offs); 1664 sqh->hlink = sc->sc_freeqhs; 1665 sc->sc_freeqhs = sqh; 1666 } 1667 } 1668 sqh = sc->sc_freeqhs; 1669 sc->sc_freeqhs = sqh->hlink; 1670 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1671 return (sqh); 1672 } 1673 1674 void 1675 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1676 { 1677 sqh->hlink = sc->sc_freeqhs; 1678 sc->sc_freeqhs = sqh; 1679 } 1680 1681 void 1682 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1683 uhci_soft_td_t *stdend) 1684 { 1685 uhci_soft_td_t *p; 1686 1687 for (; std != stdend; std = p) { 1688 p = std->link.std; 1689 uhci_free_std(sc, std); 1690 } 1691 } 1692 1693 usbd_status 1694 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1695 int rd, u_int16_t flags, usb_dma_t *dma, 1696 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1697 { 1698 uhci_soft_td_t *p, *lastp; 1699 uhci_physaddr_t lastlink; 1700 int i, ntd, l, tog, maxp; 1701 u_int32_t status; 1702 int addr = upipe->pipe.device->address; 1703 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1704 1705 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1706 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1707 upipe->pipe.device->speed, flags)); 1708 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1709 if (maxp == 0) { 1710 printf("uhci_alloc_std_chain: maxp=0\n"); 1711 return (USBD_INVAL); 1712 } 1713 ntd = (len + maxp - 1) / maxp; 1714 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1715 ntd++; 1716 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1717 if (ntd == 0) { 1718 *sp = *ep = 0; 1719 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1720 return (USBD_NORMAL_COMPLETION); 1721 } 1722 tog = upipe->nexttoggle; 1723 if (ntd % 2 == 0) 1724 tog ^= 1; 1725 upipe->nexttoggle = tog ^ 1; 1726 lastp = NULL; 1727 lastlink = UHCI_PTR_T; 1728 ntd--; 1729 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1730 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1731 status |= UHCI_TD_LS; 1732 if (flags & USBD_SHORT_XFER_OK) 1733 status |= UHCI_TD_SPD; 1734 for (i = ntd; i >= 0; i--) { 1735 p = uhci_alloc_std(sc); 1736 if (p == NULL) { 1737 uhci_free_std_chain(sc, lastp, NULL); 1738 return (USBD_NOMEM); 1739 } 1740 p->link.std = lastp; 1741 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1742 lastp = p; 1743 lastlink = p->physaddr; 1744 p->td.td_status = htole32(status); 1745 if (i == ntd) { 1746 /* last TD */ 1747 l = len % maxp; 1748 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1749 l = maxp; 1750 *ep = p; 1751 } else 1752 l = maxp; 1753 p->td.td_token = 1754 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1755 UHCI_TD_OUT(l, endpt, addr, tog)); 1756 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1757 tog ^= 1; 1758 } 1759 *sp = lastp; 1760 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1761 upipe->nexttoggle)); 1762 return (USBD_NORMAL_COMPLETION); 1763 } 1764 1765 void 1766 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1767 { 1768 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1769 upipe->nexttoggle = 0; 1770 } 1771 1772 void 1773 uhci_noop(usbd_pipe_handle pipe) 1774 { 1775 } 1776 1777 usbd_status 1778 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1779 { 1780 usbd_status err; 1781 1782 /* Insert last in queue. */ 1783 err = usb_insert_transfer(xfer); 1784 if (err) 1785 return (err); 1786 1787 /* 1788 * Pipe isn't running (otherwise err would be USBD_INPROG), 1789 * so start it first. 1790 */ 1791 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1792 } 1793 1794 usbd_status 1795 uhci_device_bulk_start(usbd_xfer_handle xfer) 1796 { 1797 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1798 usbd_device_handle dev = upipe->pipe.device; 1799 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1800 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1801 uhci_soft_td_t *data, *dataend; 1802 uhci_soft_qh_t *sqh; 1803 usbd_status err; 1804 int len, isread, endpt; 1805 int s; 1806 1807 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1808 xfer, xfer->length, xfer->flags)); 1809 1810 if (sc->sc_dying) 1811 return (USBD_IOERROR); 1812 1813 #ifdef DIAGNOSTIC 1814 if (xfer->rqflags & URQ_REQUEST) 1815 panic("uhci_device_bulk_transfer: a request"); 1816 #endif 1817 1818 len = xfer->length; 1819 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1820 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1821 sqh = upipe->u.bulk.sqh; 1822 1823 upipe->u.bulk.isread = isread; 1824 upipe->u.bulk.length = len; 1825 1826 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1827 &xfer->dmabuf, &data, &dataend); 1828 if (err) 1829 return (err); 1830 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1831 1832 #ifdef UHCI_DEBUG 1833 if (uhcidebug > 8) { 1834 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1835 uhci_dump_tds(data); 1836 } 1837 #endif 1838 1839 /* Set up interrupt info. */ 1840 ii->xfer = xfer; 1841 ii->stdstart = data; 1842 ii->stdend = dataend; 1843 #ifdef DIAGNOSTIC 1844 if (!ii->isdone) { 1845 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1846 } 1847 ii->isdone = 0; 1848 #endif 1849 1850 sqh->elink = data; 1851 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1852 1853 s = splusb(); 1854 uhci_add_bulk(sc, sqh); 1855 uhci_add_intr_info(sc, ii); 1856 1857 if (xfer->timeout && !sc->sc_bus.use_polling) { 1858 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 1859 uhci_timeout, ii); 1860 } 1861 xfer->status = USBD_IN_PROGRESS; 1862 splx(s); 1863 1864 #ifdef UHCI_DEBUG 1865 if (uhcidebug > 10) { 1866 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1867 uhci_dump_tds(data); 1868 } 1869 #endif 1870 1871 if (sc->sc_bus.use_polling) 1872 uhci_waitintr(sc, xfer); 1873 1874 return (USBD_IN_PROGRESS); 1875 } 1876 1877 /* Abort a device bulk request. */ 1878 void 1879 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1880 { 1881 DPRINTF(("uhci_device_bulk_abort:\n")); 1882 uhci_abort_xfer(xfer, USBD_CANCELLED); 1883 } 1884 1885 /* 1886 * Abort a device request. 1887 * If this routine is called at splusb() it guarantees that the request 1888 * will be removed from the hardware scheduling and that the callback 1889 * for it will be called with USBD_CANCELLED status. 1890 * It's impossible to guarantee that the requested transfer will not 1891 * have happened since the hardware runs concurrently. 1892 * If the transaction has already happened we rely on the ordinary 1893 * interrupt processing to process it. 1894 */ 1895 void 1896 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1897 { 1898 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1899 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1900 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1901 uhci_soft_td_t *std; 1902 int s; 1903 1904 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1905 1906 if (sc->sc_dying) { 1907 /* If we're dying, just do the software part. */ 1908 s = splusb(); 1909 xfer->status = status; /* make software ignore it */ 1910 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1911 usb_transfer_complete(xfer); 1912 splx(s); 1913 } 1914 1915 if (xfer->device->bus->intr_context || !curproc) 1916 panic("uhci_abort_xfer: not in process context"); 1917 1918 /* 1919 * Step 1: Make interrupt routine and hardware ignore xfer. 1920 */ 1921 s = splusb(); 1922 xfer->status = status; /* make software ignore it */ 1923 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1924 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1925 for (std = ii->stdstart; std != NULL; std = std->link.std) 1926 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1927 splx(s); 1928 1929 /* 1930 * Step 2: Wait until we know hardware has finished any possible 1931 * use of the xfer. Also make sure the soft interrupt routine 1932 * has run. 1933 */ 1934 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1935 s = splusb(); 1936 #ifdef USB_USE_SOFTINTR 1937 sc->sc_softwake = 1; 1938 #endif /* USB_USE_SOFTINTR */ 1939 usb_schedsoftintr(&sc->sc_bus); 1940 #ifdef USB_USE_SOFTINTR 1941 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1942 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1943 #endif /* USB_USE_SOFTINTR */ 1944 splx(s); 1945 1946 /* 1947 * Step 3: Execute callback. 1948 */ 1949 xfer->hcpriv = ii; 1950 1951 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1952 s = splusb(); 1953 #ifdef DIAGNOSTIC 1954 ii->isdone = 1; 1955 #endif 1956 usb_transfer_complete(xfer); 1957 splx(s); 1958 } 1959 1960 /* Close a device bulk pipe. */ 1961 void 1962 uhci_device_bulk_close(usbd_pipe_handle pipe) 1963 { 1964 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1965 usbd_device_handle dev = upipe->pipe.device; 1966 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1967 1968 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1969 } 1970 1971 usbd_status 1972 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1973 { 1974 usbd_status err; 1975 1976 /* Insert last in queue. */ 1977 err = usb_insert_transfer(xfer); 1978 if (err) 1979 return (err); 1980 1981 /* 1982 * Pipe isn't running (otherwise err would be USBD_INPROG), 1983 * so start it first. 1984 */ 1985 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1986 } 1987 1988 usbd_status 1989 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1990 { 1991 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1992 usbd_status err; 1993 1994 if (sc->sc_dying) 1995 return (USBD_IOERROR); 1996 1997 #ifdef DIAGNOSTIC 1998 if (!(xfer->rqflags & URQ_REQUEST)) 1999 panic("uhci_device_ctrl_transfer: not a request"); 2000 #endif 2001 2002 err = uhci_device_request(xfer); 2003 if (err) 2004 return (err); 2005 2006 if (sc->sc_bus.use_polling) 2007 uhci_waitintr(sc, xfer); 2008 return (USBD_IN_PROGRESS); 2009 } 2010 2011 usbd_status 2012 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2013 { 2014 usbd_status err; 2015 2016 /* Insert last in queue. */ 2017 err = usb_insert_transfer(xfer); 2018 if (err) 2019 return (err); 2020 2021 /* 2022 * Pipe isn't running (otherwise err would be USBD_INPROG), 2023 * so start it first. 2024 */ 2025 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2026 } 2027 2028 usbd_status 2029 uhci_device_intr_start(usbd_xfer_handle xfer) 2030 { 2031 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2032 usbd_device_handle dev = upipe->pipe.device; 2033 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2034 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2035 uhci_soft_td_t *data, *dataend; 2036 uhci_soft_qh_t *sqh; 2037 usbd_status err; 2038 int i, s; 2039 2040 if (sc->sc_dying) 2041 return (USBD_IOERROR); 2042 2043 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2044 xfer, xfer->length, xfer->flags)); 2045 2046 #ifdef DIAGNOSTIC 2047 if (xfer->rqflags & URQ_REQUEST) 2048 panic("uhci_device_intr_transfer: a request"); 2049 #endif 2050 2051 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2052 &xfer->dmabuf, &data, &dataend); 2053 if (err) 2054 return (err); 2055 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2056 2057 #ifdef UHCI_DEBUG 2058 if (uhcidebug > 10) { 2059 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2060 uhci_dump_tds(data); 2061 uhci_dump_qh(upipe->u.intr.qhs[0]); 2062 } 2063 #endif 2064 2065 s = splusb(); 2066 /* Set up interrupt info. */ 2067 ii->xfer = xfer; 2068 ii->stdstart = data; 2069 ii->stdend = dataend; 2070 #ifdef DIAGNOSTIC 2071 if (!ii->isdone) { 2072 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2073 } 2074 ii->isdone = 0; 2075 #endif 2076 2077 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2078 upipe->u.intr.qhs[0])); 2079 for (i = 0; i < upipe->u.intr.npoll; i++) { 2080 sqh = upipe->u.intr.qhs[i]; 2081 sqh->elink = data; 2082 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2083 } 2084 uhci_add_intr_info(sc, ii); 2085 xfer->status = USBD_IN_PROGRESS; 2086 splx(s); 2087 2088 #ifdef UHCI_DEBUG 2089 if (uhcidebug > 10) { 2090 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2091 uhci_dump_tds(data); 2092 uhci_dump_qh(upipe->u.intr.qhs[0]); 2093 } 2094 #endif 2095 2096 return (USBD_IN_PROGRESS); 2097 } 2098 2099 /* Abort a device control request. */ 2100 void 2101 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2102 { 2103 DPRINTF(("uhci_device_ctrl_abort:\n")); 2104 uhci_abort_xfer(xfer, USBD_CANCELLED); 2105 } 2106 2107 /* Close a device control pipe. */ 2108 void 2109 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2110 { 2111 } 2112 2113 /* Abort a device interrupt request. */ 2114 void 2115 uhci_device_intr_abort(usbd_xfer_handle xfer) 2116 { 2117 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2118 if (xfer->pipe->intrxfer == xfer) { 2119 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2120 xfer->pipe->intrxfer = NULL; 2121 } 2122 uhci_abort_xfer(xfer, USBD_CANCELLED); 2123 } 2124 2125 /* Close a device interrupt pipe. */ 2126 void 2127 uhci_device_intr_close(usbd_pipe_handle pipe) 2128 { 2129 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2130 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2131 int i, npoll; 2132 int s; 2133 2134 /* Unlink descriptors from controller data structures. */ 2135 npoll = upipe->u.intr.npoll; 2136 s = splusb(); 2137 for (i = 0; i < npoll; i++) 2138 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2139 splx(s); 2140 2141 /* 2142 * We now have to wait for any activity on the physical 2143 * descriptors to stop. 2144 */ 2145 usb_delay_ms(&sc->sc_bus, 2); 2146 2147 for(i = 0; i < npoll; i++) 2148 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2149 free(upipe->u.intr.qhs, M_USBHC); 2150 2151 /* XXX free other resources */ 2152 } 2153 2154 usbd_status 2155 uhci_device_request(usbd_xfer_handle xfer) 2156 { 2157 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2158 usb_device_request_t *req = &xfer->request; 2159 usbd_device_handle dev = upipe->pipe.device; 2160 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2161 int addr = dev->address; 2162 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2163 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2164 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2165 uhci_soft_qh_t *sqh; 2166 int len; 2167 u_int32_t ls; 2168 usbd_status err; 2169 int isread; 2170 int s; 2171 2172 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2173 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2174 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2175 UGETW(req->wIndex), UGETW(req->wLength), 2176 addr, endpt)); 2177 2178 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2179 isread = req->bmRequestType & UT_READ; 2180 len = UGETW(req->wLength); 2181 2182 setup = upipe->u.ctl.setup; 2183 stat = upipe->u.ctl.stat; 2184 sqh = upipe->u.ctl.sqh; 2185 2186 /* Set up data transaction */ 2187 if (len != 0) { 2188 upipe->nexttoggle = 1; 2189 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2190 &xfer->dmabuf, &data, &dataend); 2191 if (err) 2192 return (err); 2193 next = data; 2194 dataend->link.std = stat; 2195 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2196 } else { 2197 next = stat; 2198 } 2199 upipe->u.ctl.length = len; 2200 2201 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2202 2203 setup->link.std = next; 2204 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2205 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2206 UHCI_TD_ACTIVE); 2207 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2208 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2209 2210 stat->link.std = NULL; 2211 stat->td.td_link = htole32(UHCI_PTR_T); 2212 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2213 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2214 stat->td.td_token = 2215 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2216 UHCI_TD_IN (0, endpt, addr, 1)); 2217 stat->td.td_buffer = htole32(0); 2218 2219 #ifdef UHCI_DEBUG 2220 if (uhcidebug > 10) { 2221 DPRINTF(("uhci_device_request: before transfer\n")); 2222 uhci_dump_tds(setup); 2223 } 2224 #endif 2225 2226 /* Set up interrupt info. */ 2227 ii->xfer = xfer; 2228 ii->stdstart = setup; 2229 ii->stdend = stat; 2230 #ifdef DIAGNOSTIC 2231 if (!ii->isdone) { 2232 printf("uhci_device_request: not done, ii=%p\n", ii); 2233 } 2234 ii->isdone = 0; 2235 #endif 2236 2237 sqh->elink = setup; 2238 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2239 2240 s = splusb(); 2241 if (dev->speed == USB_SPEED_LOW) 2242 uhci_add_ls_ctrl(sc, sqh); 2243 else 2244 uhci_add_hs_ctrl(sc, sqh); 2245 uhci_add_intr_info(sc, ii); 2246 #ifdef UHCI_DEBUG 2247 if (uhcidebug > 12) { 2248 uhci_soft_td_t *std; 2249 uhci_soft_qh_t *xqh; 2250 uhci_soft_qh_t *sxqh; 2251 int maxqh = 0; 2252 uhci_physaddr_t link; 2253 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2254 for (std = sc->sc_vframes[0].htd, link = 0; 2255 (link & UHCI_PTR_QH) == 0; 2256 std = std->link.std) { 2257 link = le32toh(std->td.td_link); 2258 uhci_dump_td(std); 2259 } 2260 sxqh = (uhci_soft_qh_t *)std; 2261 uhci_dump_qh(sxqh); 2262 for (xqh = sxqh; 2263 xqh != NULL; 2264 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2265 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2266 uhci_dump_qh(xqh); 2267 } 2268 DPRINTF(("Enqueued QH:\n")); 2269 uhci_dump_qh(sqh); 2270 uhci_dump_tds(sqh->elink); 2271 } 2272 #endif 2273 if (xfer->timeout && !sc->sc_bus.use_polling) { 2274 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2275 uhci_timeout, ii); 2276 } 2277 xfer->status = USBD_IN_PROGRESS; 2278 splx(s); 2279 2280 return (USBD_NORMAL_COMPLETION); 2281 } 2282 2283 usbd_status 2284 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2285 { 2286 usbd_status err; 2287 2288 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2289 2290 /* Put it on our queue, */ 2291 err = usb_insert_transfer(xfer); 2292 2293 /* bail out on error, */ 2294 if (err && err != USBD_IN_PROGRESS) 2295 return (err); 2296 2297 /* XXX should check inuse here */ 2298 2299 /* insert into schedule, */ 2300 uhci_device_isoc_enter(xfer); 2301 2302 /* and start if the pipe wasn't running */ 2303 if (!err) 2304 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2305 2306 return (err); 2307 } 2308 2309 void 2310 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2311 { 2312 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2313 usbd_device_handle dev = upipe->pipe.device; 2314 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2315 struct iso *iso = &upipe->u.iso; 2316 uhci_soft_td_t *std; 2317 u_int32_t buf, len, status; 2318 int s, i, next, nframes; 2319 2320 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2321 "nframes=%d\n", 2322 iso->inuse, iso->next, xfer, xfer->nframes)); 2323 2324 if (sc->sc_dying) 2325 return; 2326 2327 if (xfer->status == USBD_IN_PROGRESS) { 2328 /* This request has already been entered into the frame list */ 2329 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2330 /* XXX */ 2331 } 2332 2333 #ifdef DIAGNOSTIC 2334 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2335 printf("uhci_device_isoc_enter: overflow!\n"); 2336 #endif 2337 2338 next = iso->next; 2339 if (next == -1) { 2340 /* Not in use yet, schedule it a few frames ahead. */ 2341 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2342 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2343 } 2344 2345 xfer->status = USBD_IN_PROGRESS; 2346 UXFER(xfer)->curframe = next; 2347 2348 buf = DMAADDR(&xfer->dmabuf, 0); 2349 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2350 UHCI_TD_ACTIVE | 2351 UHCI_TD_IOS); 2352 nframes = xfer->nframes; 2353 s = splusb(); 2354 for (i = 0; i < nframes; i++) { 2355 std = iso->stds[next]; 2356 if (++next >= UHCI_VFRAMELIST_COUNT) 2357 next = 0; 2358 len = xfer->frlengths[i]; 2359 std->td.td_buffer = htole32(buf); 2360 if (i == nframes - 1) 2361 status |= UHCI_TD_IOC; 2362 std->td.td_status = htole32(status); 2363 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2364 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2365 #ifdef UHCI_DEBUG 2366 if (uhcidebug > 5) { 2367 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2368 uhci_dump_td(std); 2369 } 2370 #endif 2371 buf += len; 2372 } 2373 iso->next = next; 2374 iso->inuse += xfer->nframes; 2375 2376 splx(s); 2377 } 2378 2379 usbd_status 2380 uhci_device_isoc_start(usbd_xfer_handle xfer) 2381 { 2382 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2383 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2384 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2385 uhci_soft_td_t *end; 2386 int s, i; 2387 2388 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2389 2390 if (sc->sc_dying) 2391 return (USBD_IOERROR); 2392 2393 #ifdef DIAGNOSTIC 2394 if (xfer->status != USBD_IN_PROGRESS) 2395 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2396 #endif 2397 2398 /* Find the last TD */ 2399 i = UXFER(xfer)->curframe + xfer->nframes; 2400 if (i >= UHCI_VFRAMELIST_COUNT) 2401 i -= UHCI_VFRAMELIST_COUNT; 2402 end = upipe->u.iso.stds[i]; 2403 2404 #ifdef DIAGNOSTIC 2405 if (end == NULL) { 2406 printf("uhci_device_isoc_start: end == NULL\n"); 2407 return (USBD_INVAL); 2408 } 2409 #endif 2410 2411 s = splusb(); 2412 2413 /* Set up interrupt info. */ 2414 ii->xfer = xfer; 2415 ii->stdstart = end; 2416 ii->stdend = end; 2417 #ifdef DIAGNOSTIC 2418 if (!ii->isdone) 2419 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2420 ii->isdone = 0; 2421 #endif 2422 uhci_add_intr_info(sc, ii); 2423 2424 splx(s); 2425 2426 return (USBD_IN_PROGRESS); 2427 } 2428 2429 void 2430 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2431 { 2432 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2433 uhci_soft_td_t **stds = upipe->u.iso.stds; 2434 uhci_soft_td_t *std; 2435 int i, n, s, nframes, maxlen, len; 2436 2437 s = splusb(); 2438 2439 /* Transfer is already done. */ 2440 if (xfer->status != USBD_NOT_STARTED && 2441 xfer->status != USBD_IN_PROGRESS) { 2442 splx(s); 2443 return; 2444 } 2445 2446 /* Give xfer the requested abort code. */ 2447 xfer->status = USBD_CANCELLED; 2448 2449 /* make hardware ignore it, */ 2450 nframes = xfer->nframes; 2451 n = UXFER(xfer)->curframe; 2452 maxlen = 0; 2453 for (i = 0; i < nframes; i++) { 2454 std = stds[n]; 2455 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2456 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2457 if (len > maxlen) 2458 maxlen = len; 2459 if (++n >= UHCI_VFRAMELIST_COUNT) 2460 n = 0; 2461 } 2462 2463 /* and wait until we are sure the hardware has finished. */ 2464 delay(maxlen); 2465 2466 #ifdef DIAGNOSTIC 2467 UXFER(xfer)->iinfo.isdone = 1; 2468 #endif 2469 /* Run callback and remove from interrupt list. */ 2470 usb_transfer_complete(xfer); 2471 2472 splx(s); 2473 } 2474 2475 void 2476 uhci_device_isoc_close(usbd_pipe_handle pipe) 2477 { 2478 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2479 usbd_device_handle dev = upipe->pipe.device; 2480 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2481 uhci_soft_td_t *std, *vstd; 2482 struct iso *iso; 2483 int i, s; 2484 2485 /* 2486 * Make sure all TDs are marked as inactive. 2487 * Wait for completion. 2488 * Unschedule. 2489 * Deallocate. 2490 */ 2491 iso = &upipe->u.iso; 2492 2493 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2494 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2495 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2496 2497 s = splusb(); 2498 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2499 std = iso->stds[i]; 2500 for (vstd = sc->sc_vframes[i].htd; 2501 vstd != NULL && vstd->link.std != std; 2502 vstd = vstd->link.std) 2503 ; 2504 if (vstd == NULL) { 2505 /*panic*/ 2506 printf("uhci_device_isoc_close: %p not found\n", std); 2507 splx(s); 2508 return; 2509 } 2510 vstd->link = std->link; 2511 vstd->td.td_link = std->td.td_link; 2512 uhci_free_std(sc, std); 2513 } 2514 splx(s); 2515 2516 free(iso->stds, M_USBHC); 2517 } 2518 2519 usbd_status 2520 uhci_setup_isoc(usbd_pipe_handle pipe) 2521 { 2522 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2523 usbd_device_handle dev = upipe->pipe.device; 2524 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2525 int addr = upipe->pipe.device->address; 2526 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2527 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2528 uhci_soft_td_t *std, *vstd; 2529 u_int32_t token; 2530 struct iso *iso; 2531 int i, s; 2532 2533 iso = &upipe->u.iso; 2534 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2535 M_USBHC, M_WAITOK); 2536 2537 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2538 UHCI_TD_OUT(0, endpt, addr, 0); 2539 2540 /* Allocate the TDs and mark as inactive; */ 2541 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2542 std = uhci_alloc_std(sc); 2543 if (std == 0) 2544 goto bad; 2545 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2546 std->td.td_token = htole32(token); 2547 iso->stds[i] = std; 2548 } 2549 2550 /* Insert TDs into schedule. */ 2551 s = splusb(); 2552 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2553 std = iso->stds[i]; 2554 vstd = sc->sc_vframes[i].htd; 2555 std->link = vstd->link; 2556 std->td.td_link = vstd->td.td_link; 2557 vstd->link.std = std; 2558 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2559 } 2560 splx(s); 2561 2562 iso->next = -1; 2563 iso->inuse = 0; 2564 2565 return (USBD_NORMAL_COMPLETION); 2566 2567 bad: 2568 while (--i >= 0) 2569 uhci_free_std(sc, iso->stds[i]); 2570 free(iso->stds, M_USBHC); 2571 return (USBD_NOMEM); 2572 } 2573 2574 void 2575 uhci_device_isoc_done(usbd_xfer_handle xfer) 2576 { 2577 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2578 2579 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2580 2581 if (ii->xfer != xfer) 2582 /* Not on interrupt list, ignore it. */ 2583 return; 2584 2585 #ifdef DIAGNOSTIC 2586 if (xfer->busy_free != XFER_BUSY) { 2587 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2588 xfer, xfer->busy_free); 2589 return; 2590 } 2591 2592 if (ii->stdend == NULL) { 2593 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2594 #ifdef UHCI_DEBUG 2595 uhci_dump_ii(ii); 2596 #endif 2597 return; 2598 } 2599 #endif 2600 2601 /* Turn off the interrupt since it is active even if the TD is not. */ 2602 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2603 2604 uhci_del_intr_info(ii); /* remove from active list */ 2605 } 2606 2607 void 2608 uhci_device_intr_done(usbd_xfer_handle xfer) 2609 { 2610 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2611 uhci_softc_t *sc = ii->sc; 2612 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2613 uhci_soft_qh_t *sqh; 2614 int i, npoll; 2615 2616 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2617 2618 npoll = upipe->u.intr.npoll; 2619 for(i = 0; i < npoll; i++) { 2620 sqh = upipe->u.intr.qhs[i]; 2621 sqh->elink = NULL; 2622 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2623 } 2624 uhci_free_std_chain(sc, ii->stdstart, NULL); 2625 2626 /* XXX Wasteful. */ 2627 if (xfer->pipe->repeat) { 2628 uhci_soft_td_t *data, *dataend; 2629 2630 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2631 2632 /* This alloc cannot fail since we freed the chain above. */ 2633 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2634 &xfer->dmabuf, &data, &dataend); 2635 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2636 2637 #ifdef UHCI_DEBUG 2638 if (uhcidebug > 10) { 2639 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2640 uhci_dump_tds(data); 2641 uhci_dump_qh(upipe->u.intr.qhs[0]); 2642 } 2643 #endif 2644 2645 ii->stdstart = data; 2646 ii->stdend = dataend; 2647 #ifdef DIAGNOSTIC 2648 if (!ii->isdone) { 2649 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2650 } 2651 ii->isdone = 0; 2652 #endif 2653 for (i = 0; i < npoll; i++) { 2654 sqh = upipe->u.intr.qhs[i]; 2655 sqh->elink = data; 2656 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2657 } 2658 xfer->status = USBD_IN_PROGRESS; 2659 /* The ii is already on the examined list, just leave it. */ 2660 } else { 2661 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2662 uhci_del_intr_info(ii); 2663 } 2664 } 2665 2666 /* Deallocate request data structures */ 2667 void 2668 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2669 { 2670 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2671 uhci_softc_t *sc = ii->sc; 2672 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2673 2674 #ifdef DIAGNOSTIC 2675 if (!(xfer->rqflags & URQ_REQUEST)) 2676 panic("uhci_ctrl_done: not a request"); 2677 #endif 2678 2679 uhci_del_intr_info(ii); /* remove from active list */ 2680 2681 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2682 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2683 else 2684 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2685 2686 if (upipe->u.ctl.length != 0) 2687 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2688 2689 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2690 } 2691 2692 /* Deallocate request data structures */ 2693 void 2694 uhci_device_bulk_done(usbd_xfer_handle xfer) 2695 { 2696 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2697 uhci_softc_t *sc = ii->sc; 2698 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2699 2700 uhci_del_intr_info(ii); /* remove from active list */ 2701 2702 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2703 2704 uhci_free_std_chain(sc, ii->stdstart, NULL); 2705 2706 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2707 } 2708 2709 /* Add interrupt QH, called with vflock. */ 2710 void 2711 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2712 { 2713 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2714 uhci_soft_qh_t *eqh; 2715 2716 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2717 2718 eqh = vf->eqh; 2719 sqh->hlink = eqh->hlink; 2720 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2721 eqh->hlink = sqh; 2722 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2723 vf->eqh = sqh; 2724 vf->bandwidth++; 2725 } 2726 2727 /* Remove interrupt QH. */ 2728 void 2729 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2730 { 2731 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2732 uhci_soft_qh_t *pqh; 2733 2734 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2735 2736 /* See comment in uhci_remove_ctrl() */ 2737 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2738 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2739 delay(UHCI_QH_REMOVE_DELAY); 2740 } 2741 2742 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2743 pqh->hlink = sqh->hlink; 2744 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2745 delay(UHCI_QH_REMOVE_DELAY); 2746 if (vf->eqh == sqh) 2747 vf->eqh = pqh; 2748 vf->bandwidth--; 2749 } 2750 2751 usbd_status 2752 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2753 { 2754 uhci_soft_qh_t *sqh; 2755 int i, npoll, s; 2756 u_int bestbw, bw, bestoffs, offs; 2757 2758 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2759 if (ival == 0) { 2760 printf("uhci_setintr: 0 interval\n"); 2761 return (USBD_INVAL); 2762 } 2763 2764 if (ival > UHCI_VFRAMELIST_COUNT) 2765 ival = UHCI_VFRAMELIST_COUNT; 2766 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2767 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2768 2769 upipe->u.intr.npoll = npoll; 2770 upipe->u.intr.qhs = 2771 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2772 2773 /* 2774 * Figure out which offset in the schedule that has most 2775 * bandwidth left over. 2776 */ 2777 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2778 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2779 for (bw = i = 0; i < npoll; i++) 2780 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2781 if (bw < bestbw) { 2782 bestbw = bw; 2783 bestoffs = offs; 2784 } 2785 } 2786 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2787 2788 for(i = 0; i < npoll; i++) { 2789 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2790 sqh->elink = NULL; 2791 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2792 sqh->pos = MOD(i * ival + bestoffs); 2793 } 2794 #undef MOD 2795 2796 s = splusb(); 2797 /* Enter QHs into the controller data structures. */ 2798 for(i = 0; i < npoll; i++) 2799 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2800 splx(s); 2801 2802 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2803 return (USBD_NORMAL_COMPLETION); 2804 } 2805 2806 /* Open a new pipe. */ 2807 usbd_status 2808 uhci_open(usbd_pipe_handle pipe) 2809 { 2810 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2811 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2812 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2813 usbd_status err; 2814 int ival; 2815 2816 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2817 pipe, pipe->device->address, 2818 ed->bEndpointAddress, sc->sc_addr)); 2819 2820 upipe->aborting = 0; 2821 upipe->nexttoggle = 0; 2822 2823 if (pipe->device->address == sc->sc_addr) { 2824 switch (ed->bEndpointAddress) { 2825 case USB_CONTROL_ENDPOINT: 2826 pipe->methods = &uhci_root_ctrl_methods; 2827 break; 2828 case UE_DIR_IN | UHCI_INTR_ENDPT: 2829 pipe->methods = &uhci_root_intr_methods; 2830 break; 2831 default: 2832 return (USBD_INVAL); 2833 } 2834 } else { 2835 switch (ed->bmAttributes & UE_XFERTYPE) { 2836 case UE_CONTROL: 2837 pipe->methods = &uhci_device_ctrl_methods; 2838 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2839 if (upipe->u.ctl.sqh == NULL) 2840 goto bad; 2841 upipe->u.ctl.setup = uhci_alloc_std(sc); 2842 if (upipe->u.ctl.setup == NULL) { 2843 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2844 goto bad; 2845 } 2846 upipe->u.ctl.stat = uhci_alloc_std(sc); 2847 if (upipe->u.ctl.stat == NULL) { 2848 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2849 uhci_free_std(sc, upipe->u.ctl.setup); 2850 goto bad; 2851 } 2852 err = usb_allocmem(&sc->sc_bus, 2853 sizeof(usb_device_request_t), 2854 0, &upipe->u.ctl.reqdma); 2855 if (err) { 2856 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2857 uhci_free_std(sc, upipe->u.ctl.setup); 2858 uhci_free_std(sc, upipe->u.ctl.stat); 2859 goto bad; 2860 } 2861 break; 2862 case UE_INTERRUPT: 2863 pipe->methods = &uhci_device_intr_methods; 2864 ival = pipe->interval; 2865 if (ival == USBD_DEFAULT_INTERVAL) 2866 ival = ed->bInterval; 2867 return (uhci_device_setintr(sc, upipe, ival)); 2868 case UE_ISOCHRONOUS: 2869 pipe->methods = &uhci_device_isoc_methods; 2870 return (uhci_setup_isoc(pipe)); 2871 case UE_BULK: 2872 pipe->methods = &uhci_device_bulk_methods; 2873 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2874 if (upipe->u.bulk.sqh == NULL) 2875 goto bad; 2876 break; 2877 } 2878 } 2879 return (USBD_NORMAL_COMPLETION); 2880 2881 bad: 2882 return (USBD_NOMEM); 2883 } 2884 2885 /* 2886 * Data structures and routines to emulate the root hub. 2887 */ 2888 usb_device_descriptor_t uhci_devd = { 2889 USB_DEVICE_DESCRIPTOR_SIZE, 2890 UDESC_DEVICE, /* type */ 2891 {0x00, 0x01}, /* USB version */ 2892 UDCLASS_HUB, /* class */ 2893 UDSUBCLASS_HUB, /* subclass */ 2894 UDPROTO_FSHUB, /* protocol */ 2895 64, /* max packet */ 2896 {0},{0},{0x00,0x01}, /* device id */ 2897 1,2,0, /* string indicies */ 2898 1 /* # of configurations */ 2899 }; 2900 2901 usb_config_descriptor_t uhci_confd = { 2902 USB_CONFIG_DESCRIPTOR_SIZE, 2903 UDESC_CONFIG, 2904 {USB_CONFIG_DESCRIPTOR_SIZE + 2905 USB_INTERFACE_DESCRIPTOR_SIZE + 2906 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2907 1, 2908 1, 2909 0, 2910 UC_SELF_POWERED, 2911 0 /* max power */ 2912 }; 2913 2914 usb_interface_descriptor_t uhci_ifcd = { 2915 USB_INTERFACE_DESCRIPTOR_SIZE, 2916 UDESC_INTERFACE, 2917 0, 2918 0, 2919 1, 2920 UICLASS_HUB, 2921 UISUBCLASS_HUB, 2922 UIPROTO_FSHUB, 2923 0 2924 }; 2925 2926 usb_endpoint_descriptor_t uhci_endpd = { 2927 USB_ENDPOINT_DESCRIPTOR_SIZE, 2928 UDESC_ENDPOINT, 2929 UE_DIR_IN | UHCI_INTR_ENDPT, 2930 UE_INTERRUPT, 2931 {8}, 2932 255 2933 }; 2934 2935 usb_hub_descriptor_t uhci_hubd_piix = { 2936 USB_HUB_DESCRIPTOR_SIZE, 2937 UDESC_HUB, 2938 2, 2939 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2940 50, /* power on to power good */ 2941 0, 2942 { 0x00 }, /* both ports are removable */ 2943 }; 2944 2945 int 2946 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2947 { 2948 int i; 2949 2950 if (l == 0) 2951 return (0); 2952 p->bLength = 2 * strlen(s) + 2; 2953 if (l == 1) 2954 return (1); 2955 p->bDescriptorType = UDESC_STRING; 2956 l -= 2; 2957 for (i = 0; s[i] && l > 1; i++, l -= 2) 2958 USETW2(p->bString[i], 0, s[i]); 2959 return (2*i+2); 2960 } 2961 2962 /* 2963 * Simulate a hardware hub by handling all the necessary requests. 2964 */ 2965 usbd_status 2966 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 2967 { 2968 usbd_status err; 2969 2970 /* Insert last in queue. */ 2971 err = usb_insert_transfer(xfer); 2972 if (err) 2973 return (err); 2974 2975 /* 2976 * Pipe isn't running (otherwise err would be USBD_INPROG), 2977 * so start it first. 2978 */ 2979 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2980 } 2981 2982 usbd_status 2983 uhci_root_ctrl_start(usbd_xfer_handle xfer) 2984 { 2985 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2986 usb_device_request_t *req; 2987 void *buf = NULL; 2988 int port, x; 2989 int s, len, value, index, status, change, l, totlen = 0; 2990 usb_port_status_t ps; 2991 usbd_status err; 2992 2993 if (sc->sc_dying) 2994 return (USBD_IOERROR); 2995 2996 #ifdef DIAGNOSTIC 2997 if (!(xfer->rqflags & URQ_REQUEST)) 2998 panic("uhci_root_ctrl_transfer: not a request"); 2999 #endif 3000 req = &xfer->request; 3001 3002 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3003 req->bmRequestType, req->bRequest)); 3004 3005 len = UGETW(req->wLength); 3006 value = UGETW(req->wValue); 3007 index = UGETW(req->wIndex); 3008 3009 if (len != 0) 3010 buf = KERNADDR(&xfer->dmabuf, 0); 3011 3012 #define C(x,y) ((x) | ((y) << 8)) 3013 switch(C(req->bRequest, req->bmRequestType)) { 3014 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3015 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3016 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3017 /* 3018 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3019 * for the integrated root hub. 3020 */ 3021 break; 3022 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3023 if (len > 0) { 3024 *(u_int8_t *)buf = sc->sc_conf; 3025 totlen = 1; 3026 } 3027 break; 3028 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3029 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3030 switch(value >> 8) { 3031 case UDESC_DEVICE: 3032 if ((value & 0xff) != 0) { 3033 err = USBD_IOERROR; 3034 goto ret; 3035 } 3036 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3037 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3038 memcpy(buf, &uhci_devd, l); 3039 break; 3040 case UDESC_CONFIG: 3041 if ((value & 0xff) != 0) { 3042 err = USBD_IOERROR; 3043 goto ret; 3044 } 3045 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3046 memcpy(buf, &uhci_confd, l); 3047 buf = (char *)buf + l; 3048 len -= l; 3049 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3050 totlen += l; 3051 memcpy(buf, &uhci_ifcd, l); 3052 buf = (char *)buf + l; 3053 len -= l; 3054 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3055 totlen += l; 3056 memcpy(buf, &uhci_endpd, l); 3057 break; 3058 case UDESC_STRING: 3059 if (len == 0) 3060 break; 3061 *(u_int8_t *)buf = 0; 3062 totlen = 1; 3063 switch (value & 0xff) { 3064 case 1: /* Vendor */ 3065 totlen = uhci_str(buf, len, sc->sc_vendor); 3066 break; 3067 case 2: /* Product */ 3068 totlen = uhci_str(buf, len, "UHCI root hub"); 3069 break; 3070 } 3071 break; 3072 default: 3073 err = USBD_IOERROR; 3074 goto ret; 3075 } 3076 break; 3077 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3078 if (len > 0) { 3079 *(u_int8_t *)buf = 0; 3080 totlen = 1; 3081 } 3082 break; 3083 case C(UR_GET_STATUS, UT_READ_DEVICE): 3084 if (len > 1) { 3085 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3086 totlen = 2; 3087 } 3088 break; 3089 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3090 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3091 if (len > 1) { 3092 USETW(((usb_status_t *)buf)->wStatus, 0); 3093 totlen = 2; 3094 } 3095 break; 3096 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3097 if (value >= USB_MAX_DEVICES) { 3098 err = USBD_IOERROR; 3099 goto ret; 3100 } 3101 sc->sc_addr = value; 3102 break; 3103 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3104 if (value != 0 && value != 1) { 3105 err = USBD_IOERROR; 3106 goto ret; 3107 } 3108 sc->sc_conf = value; 3109 break; 3110 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3111 break; 3112 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3113 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3114 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3115 err = USBD_IOERROR; 3116 goto ret; 3117 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3118 break; 3119 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3120 break; 3121 /* Hub requests */ 3122 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3123 break; 3124 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3125 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3126 "port=%d feature=%d\n", 3127 index, value)); 3128 if (index == 1) 3129 port = UHCI_PORTSC1; 3130 else if (index == 2) 3131 port = UHCI_PORTSC2; 3132 else { 3133 err = USBD_IOERROR; 3134 goto ret; 3135 } 3136 switch(value) { 3137 case UHF_PORT_ENABLE: 3138 x = URWMASK(UREAD2(sc, port)); 3139 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3140 break; 3141 case UHF_PORT_SUSPEND: 3142 x = URWMASK(UREAD2(sc, port)); 3143 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3144 break; 3145 case UHF_PORT_RESET: 3146 x = URWMASK(UREAD2(sc, port)); 3147 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3148 break; 3149 case UHF_C_PORT_CONNECTION: 3150 x = URWMASK(UREAD2(sc, port)); 3151 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3152 break; 3153 case UHF_C_PORT_ENABLE: 3154 x = URWMASK(UREAD2(sc, port)); 3155 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3156 break; 3157 case UHF_C_PORT_OVER_CURRENT: 3158 x = URWMASK(UREAD2(sc, port)); 3159 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3160 break; 3161 case UHF_C_PORT_RESET: 3162 sc->sc_isreset = 0; 3163 err = USBD_NORMAL_COMPLETION; 3164 goto ret; 3165 case UHF_PORT_CONNECTION: 3166 case UHF_PORT_OVER_CURRENT: 3167 case UHF_PORT_POWER: 3168 case UHF_PORT_LOW_SPEED: 3169 case UHF_C_PORT_SUSPEND: 3170 default: 3171 err = USBD_IOERROR; 3172 goto ret; 3173 } 3174 break; 3175 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3176 if (index == 1) 3177 port = UHCI_PORTSC1; 3178 else if (index == 2) 3179 port = UHCI_PORTSC2; 3180 else { 3181 err = USBD_IOERROR; 3182 goto ret; 3183 } 3184 if (len > 0) { 3185 *(u_int8_t *)buf = 3186 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3187 UHCI_PORTSC_LS_SHIFT; 3188 totlen = 1; 3189 } 3190 break; 3191 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3192 if (value != 0) { 3193 err = USBD_IOERROR; 3194 goto ret; 3195 } 3196 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3197 totlen = l; 3198 memcpy(buf, &uhci_hubd_piix, l); 3199 break; 3200 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3201 if (len != 4) { 3202 err = USBD_IOERROR; 3203 goto ret; 3204 } 3205 memset(buf, 0, len); 3206 totlen = len; 3207 break; 3208 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3209 if (index == 1) 3210 port = UHCI_PORTSC1; 3211 else if (index == 2) 3212 port = UHCI_PORTSC2; 3213 else { 3214 err = USBD_IOERROR; 3215 goto ret; 3216 } 3217 if (len != 4) { 3218 err = USBD_IOERROR; 3219 goto ret; 3220 } 3221 x = UREAD2(sc, port); 3222 status = change = 0; 3223 if (x & UHCI_PORTSC_CCS) 3224 status |= UPS_CURRENT_CONNECT_STATUS; 3225 if (x & UHCI_PORTSC_CSC) 3226 change |= UPS_C_CONNECT_STATUS; 3227 if (x & UHCI_PORTSC_PE) 3228 status |= UPS_PORT_ENABLED; 3229 if (x & UHCI_PORTSC_POEDC) 3230 change |= UPS_C_PORT_ENABLED; 3231 if (x & UHCI_PORTSC_OCI) 3232 status |= UPS_OVERCURRENT_INDICATOR; 3233 if (x & UHCI_PORTSC_OCIC) 3234 change |= UPS_C_OVERCURRENT_INDICATOR; 3235 if (x & UHCI_PORTSC_SUSP) 3236 status |= UPS_SUSPEND; 3237 if (x & UHCI_PORTSC_LSDA) 3238 status |= UPS_LOW_SPEED; 3239 status |= UPS_PORT_POWER; 3240 if (sc->sc_isreset) 3241 change |= UPS_C_PORT_RESET; 3242 USETW(ps.wPortStatus, status); 3243 USETW(ps.wPortChange, change); 3244 l = min(len, sizeof ps); 3245 memcpy(buf, &ps, l); 3246 totlen = l; 3247 break; 3248 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3249 err = USBD_IOERROR; 3250 goto ret; 3251 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3252 break; 3253 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3254 if (index == 1) 3255 port = UHCI_PORTSC1; 3256 else if (index == 2) 3257 port = UHCI_PORTSC2; 3258 else { 3259 err = USBD_IOERROR; 3260 goto ret; 3261 } 3262 switch(value) { 3263 case UHF_PORT_ENABLE: 3264 x = URWMASK(UREAD2(sc, port)); 3265 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3266 break; 3267 case UHF_PORT_SUSPEND: 3268 x = URWMASK(UREAD2(sc, port)); 3269 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3270 break; 3271 case UHF_PORT_RESET: 3272 x = URWMASK(UREAD2(sc, port)); 3273 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3274 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3275 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3276 delay(100); 3277 x = UREAD2(sc, port); 3278 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3279 usb_delay_ms(&sc->sc_bus, 10); /* XXX */ 3280 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 3281 index, UREAD2(sc, port))); 3282 sc->sc_isreset = 1; 3283 break; 3284 case UHF_PORT_POWER: 3285 /* Pretend we turned on power */ 3286 err = USBD_NORMAL_COMPLETION; 3287 goto ret; 3288 case UHF_C_PORT_CONNECTION: 3289 case UHF_C_PORT_ENABLE: 3290 case UHF_C_PORT_OVER_CURRENT: 3291 case UHF_PORT_CONNECTION: 3292 case UHF_PORT_OVER_CURRENT: 3293 case UHF_PORT_LOW_SPEED: 3294 case UHF_C_PORT_SUSPEND: 3295 case UHF_C_PORT_RESET: 3296 default: 3297 err = USBD_IOERROR; 3298 goto ret; 3299 } 3300 break; 3301 default: 3302 err = USBD_IOERROR; 3303 goto ret; 3304 } 3305 xfer->actlen = totlen; 3306 err = USBD_NORMAL_COMPLETION; 3307 ret: 3308 xfer->status = err; 3309 s = splusb(); 3310 usb_transfer_complete(xfer); 3311 splx(s); 3312 return (USBD_IN_PROGRESS); 3313 } 3314 3315 /* Abort a root control request. */ 3316 void 3317 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3318 { 3319 /* Nothing to do, all transfers are synchronous. */ 3320 } 3321 3322 /* Close the root pipe. */ 3323 void 3324 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3325 { 3326 DPRINTF(("uhci_root_ctrl_close\n")); 3327 } 3328 3329 /* Abort a root interrupt request. */ 3330 void 3331 uhci_root_intr_abort(usbd_xfer_handle xfer) 3332 { 3333 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3334 3335 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3336 sc->sc_intr_xfer = NULL; 3337 3338 if (xfer->pipe->intrxfer == xfer) { 3339 DPRINTF(("uhci_root_intr_abort: remove\n")); 3340 xfer->pipe->intrxfer = 0; 3341 } 3342 xfer->status = USBD_CANCELLED; 3343 #ifdef DIAGNOSTIC 3344 UXFER(xfer)->iinfo.isdone = 1; 3345 #endif 3346 usb_transfer_complete(xfer); 3347 } 3348 3349 usbd_status 3350 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3351 { 3352 usbd_status err; 3353 3354 /* Insert last in queue. */ 3355 err = usb_insert_transfer(xfer); 3356 if (err) 3357 return (err); 3358 3359 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3360 * start first 3361 */ 3362 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3363 } 3364 3365 /* Start a transfer on the root interrupt pipe */ 3366 usbd_status 3367 uhci_root_intr_start(usbd_xfer_handle xfer) 3368 { 3369 usbd_pipe_handle pipe = xfer->pipe; 3370 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3371 3372 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3373 xfer, xfer->length, xfer->flags)); 3374 3375 if (sc->sc_dying) 3376 return (USBD_IOERROR); 3377 3378 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3379 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3380 sc->sc_intr_xfer = xfer; 3381 return (USBD_IN_PROGRESS); 3382 } 3383 3384 /* Close the root interrupt pipe. */ 3385 void 3386 uhci_root_intr_close(usbd_pipe_handle pipe) 3387 { 3388 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3389 3390 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3391 sc->sc_intr_xfer = NULL; 3392 DPRINTF(("uhci_root_intr_close\n")); 3393 } 3394