uhci.c revision 1.159.2.2
1 /* $NetBSD: uhci.c,v 1.159.2.2 2004/03/15 04:37:29 jmc Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://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 1.159.2.2 2004/03/15 04:37:29 jmc 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 usbd_status uhci_portreset(uhci_softc_t*, int); 166 Static void uhci_reset(uhci_softc_t *); 167 Static void uhci_shutdown(void *v); 168 Static void uhci_power(int, void *); 169 Static usbd_status uhci_run(uhci_softc_t *, int run); 170 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 171 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 172 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 173 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 174 #if 0 175 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 176 uhci_intr_info_t *); 177 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 178 #endif 179 180 Static void uhci_free_std_chain(uhci_softc_t *, 181 uhci_soft_td_t *, uhci_soft_td_t *); 182 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 183 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 184 uhci_soft_td_t **, uhci_soft_td_t **); 185 Static void uhci_poll_hub(void *); 186 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 187 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 188 Static void uhci_idone(uhci_intr_info_t *); 189 190 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 191 192 Static void uhci_timeout(void *); 193 Static void uhci_timeout_task(void *); 194 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 200 Static int uhci_str(usb_string_descriptor_t *, int, char *); 201 Static void uhci_add_loop(uhci_softc_t *sc); 202 Static void uhci_rem_loop(uhci_softc_t *sc); 203 204 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 205 Static void uhci_device_isoc_enter(usbd_xfer_handle); 206 207 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 208 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 209 210 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 211 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 212 213 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 215 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 216 Static void uhci_device_ctrl_close(usbd_pipe_handle); 217 Static void uhci_device_ctrl_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 221 Static void uhci_device_intr_abort(usbd_xfer_handle); 222 Static void uhci_device_intr_close(usbd_pipe_handle); 223 Static void uhci_device_intr_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 227 Static void uhci_device_bulk_abort(usbd_xfer_handle); 228 Static void uhci_device_bulk_close(usbd_pipe_handle); 229 Static void uhci_device_bulk_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 233 Static void uhci_device_isoc_abort(usbd_xfer_handle); 234 Static void uhci_device_isoc_close(usbd_pipe_handle); 235 Static void uhci_device_isoc_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 239 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 240 Static void uhci_root_ctrl_close(usbd_pipe_handle); 241 Static void uhci_root_ctrl_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 244 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 245 Static void uhci_root_intr_abort(usbd_xfer_handle); 246 Static void uhci_root_intr_close(usbd_pipe_handle); 247 Static void uhci_root_intr_done(usbd_xfer_handle); 248 249 Static usbd_status uhci_open(usbd_pipe_handle); 250 Static void uhci_poll(struct usbd_bus *); 251 Static void uhci_softintr(void *); 252 253 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 254 255 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 258 struct uhci_pipe *pipe, int ival); 259 260 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 261 Static void uhci_noop(usbd_pipe_handle pipe); 262 263 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 264 uhci_soft_qh_t *); 265 266 #ifdef UHCI_DEBUG 267 Static void uhci_dump_all(uhci_softc_t *); 268 Static void uhci_dumpregs(uhci_softc_t *); 269 Static void uhci_dump_qhs(uhci_soft_qh_t *); 270 Static void uhci_dump_qh(uhci_soft_qh_t *); 271 Static void uhci_dump_tds(uhci_soft_td_t *); 272 Static void uhci_dump_td(uhci_soft_td_t *); 273 Static void uhci_dump_ii(uhci_intr_info_t *ii); 274 void uhci_dump(void); 275 #endif 276 277 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 278 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 279 #define UWRITE1(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 281 #define UWRITE2(sc, r, x) \ 282 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 283 #define UWRITE4(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); } while (0) 285 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 286 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 287 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 288 289 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 290 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 291 292 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 293 294 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 295 296 #define UHCI_INTR_ENDPT 1 297 298 struct usbd_bus_methods uhci_bus_methods = { 299 uhci_open, 300 uhci_softintr, 301 uhci_poll, 302 uhci_allocm, 303 uhci_freem, 304 uhci_allocx, 305 uhci_freex, 306 }; 307 308 struct usbd_pipe_methods uhci_root_ctrl_methods = { 309 uhci_root_ctrl_transfer, 310 uhci_root_ctrl_start, 311 uhci_root_ctrl_abort, 312 uhci_root_ctrl_close, 313 uhci_noop, 314 uhci_root_ctrl_done, 315 }; 316 317 struct usbd_pipe_methods uhci_root_intr_methods = { 318 uhci_root_intr_transfer, 319 uhci_root_intr_start, 320 uhci_root_intr_abort, 321 uhci_root_intr_close, 322 uhci_noop, 323 uhci_root_intr_done, 324 }; 325 326 struct usbd_pipe_methods uhci_device_ctrl_methods = { 327 uhci_device_ctrl_transfer, 328 uhci_device_ctrl_start, 329 uhci_device_ctrl_abort, 330 uhci_device_ctrl_close, 331 uhci_noop, 332 uhci_device_ctrl_done, 333 }; 334 335 struct usbd_pipe_methods uhci_device_intr_methods = { 336 uhci_device_intr_transfer, 337 uhci_device_intr_start, 338 uhci_device_intr_abort, 339 uhci_device_intr_close, 340 uhci_device_clear_toggle, 341 uhci_device_intr_done, 342 }; 343 344 struct usbd_pipe_methods uhci_device_bulk_methods = { 345 uhci_device_bulk_transfer, 346 uhci_device_bulk_start, 347 uhci_device_bulk_abort, 348 uhci_device_bulk_close, 349 uhci_device_clear_toggle, 350 uhci_device_bulk_done, 351 }; 352 353 struct usbd_pipe_methods uhci_device_isoc_methods = { 354 uhci_device_isoc_transfer, 355 uhci_device_isoc_start, 356 uhci_device_isoc_abort, 357 uhci_device_isoc_close, 358 uhci_noop, 359 uhci_device_isoc_done, 360 }; 361 362 #define uhci_add_intr_info(sc, ii) \ 363 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list); 364 #define uhci_del_intr_info(ii) \ 365 LIST_REMOVE((ii), list) 366 367 Static __inline__ uhci_soft_qh_t * 368 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 369 { 370 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 371 372 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 373 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 374 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 375 printf("uhci_find_prev_qh: QH not found\n"); 376 return (NULL); 377 } 378 #endif 379 } 380 return (pqh); 381 } 382 383 void 384 uhci_globalreset(uhci_softc_t *sc) 385 { 386 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 387 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 388 UHCICMD(sc, 0); /* do nothing */ 389 } 390 391 usbd_status 392 uhci_init(uhci_softc_t *sc) 393 { 394 usbd_status err; 395 int i, j; 396 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 397 uhci_soft_td_t *std; 398 399 DPRINTFN(1,("uhci_init: start\n")); 400 401 #ifdef UHCI_DEBUG 402 thesc = sc; 403 404 if (uhcidebug > 2) 405 uhci_dumpregs(sc); 406 #endif 407 408 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 409 uhci_globalreset(sc); /* reset the controller */ 410 uhci_reset(sc); 411 412 /* Allocate and initialize real frame array. */ 413 err = usb_allocmem(&sc->sc_bus, 414 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 415 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 416 if (err) 417 return (err); 418 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 419 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 420 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 421 422 /* 423 * Allocate a TD, inactive, that hangs from the last QH. 424 * This is to avoid a bug in the PIIX that makes it run berserk 425 * otherwise. 426 */ 427 std = uhci_alloc_std(sc); 428 if (std == NULL) 429 return (USBD_NOMEM); 430 std->link.std = NULL; 431 std->td.td_link = htole32(UHCI_PTR_T); 432 std->td.td_status = htole32(0); /* inactive */ 433 std->td.td_token = htole32(0); 434 std->td.td_buffer = htole32(0); 435 436 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 437 lsqh = uhci_alloc_sqh(sc); 438 if (lsqh == NULL) 439 return (USBD_NOMEM); 440 lsqh->hlink = NULL; 441 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 442 lsqh->elink = std; 443 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 444 sc->sc_last_qh = lsqh; 445 446 /* Allocate the dummy QH where bulk traffic will be queued. */ 447 bsqh = uhci_alloc_sqh(sc); 448 if (bsqh == NULL) 449 return (USBD_NOMEM); 450 bsqh->hlink = lsqh; 451 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 452 bsqh->elink = NULL; 453 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 454 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 455 456 /* Allocate dummy QH where high speed control traffic will be queued. */ 457 chsqh = uhci_alloc_sqh(sc); 458 if (chsqh == NULL) 459 return (USBD_NOMEM); 460 chsqh->hlink = bsqh; 461 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 462 chsqh->elink = NULL; 463 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 464 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 465 466 /* Allocate dummy QH where control traffic will be queued. */ 467 clsqh = uhci_alloc_sqh(sc); 468 if (clsqh == NULL) 469 return (USBD_NOMEM); 470 clsqh->hlink = bsqh; 471 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 472 clsqh->elink = NULL; 473 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 474 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 475 476 /* 477 * Make all (virtual) frame list pointers point to the interrupt 478 * queue heads and the interrupt queue heads at the control 479 * queue head and point the physical frame list to the virtual. 480 */ 481 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 482 std = uhci_alloc_std(sc); 483 sqh = uhci_alloc_sqh(sc); 484 if (std == NULL || sqh == NULL) 485 return (USBD_NOMEM); 486 std->link.sqh = sqh; 487 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 488 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 489 std->td.td_token = htole32(0); 490 std->td.td_buffer = htole32(0); 491 sqh->hlink = clsqh; 492 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 493 sqh->elink = NULL; 494 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 495 sc->sc_vframes[i].htd = std; 496 sc->sc_vframes[i].etd = std; 497 sc->sc_vframes[i].hqh = sqh; 498 sc->sc_vframes[i].eqh = sqh; 499 for (j = i; 500 j < UHCI_FRAMELIST_COUNT; 501 j += UHCI_VFRAMELIST_COUNT) 502 sc->sc_pframes[j] = htole32(std->physaddr); 503 } 504 505 LIST_INIT(&sc->sc_intrhead); 506 507 SIMPLEQ_INIT(&sc->sc_free_xfers); 508 509 usb_callout_init(sc->sc_poll_handle); 510 511 /* Set up the bus struct. */ 512 sc->sc_bus.methods = &uhci_bus_methods; 513 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 514 515 #if defined(__NetBSD__) || defined(__OpenBSD__) 516 sc->sc_suspend = PWR_RESUME; 517 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 518 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 519 #endif 520 521 DPRINTFN(1,("uhci_init: enabling\n")); 522 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 523 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 524 525 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 526 527 return (uhci_run(sc, 1)); /* and here we go... */ 528 } 529 530 #if defined(__NetBSD__) || defined(__OpenBSD__) 531 int 532 uhci_activate(device_ptr_t self, enum devact act) 533 { 534 struct uhci_softc *sc = (struct uhci_softc *)self; 535 int rv = 0; 536 537 switch (act) { 538 case DVACT_ACTIVATE: 539 return (EOPNOTSUPP); 540 break; 541 542 case DVACT_DEACTIVATE: 543 if (sc->sc_child != NULL) 544 rv = config_deactivate(sc->sc_child); 545 break; 546 } 547 return (rv); 548 } 549 550 int 551 uhci_detach(struct uhci_softc *sc, int flags) 552 { 553 usbd_xfer_handle xfer; 554 int rv = 0; 555 556 if (sc->sc_child != NULL) 557 rv = config_detach(sc->sc_child, flags); 558 559 if (rv != 0) 560 return (rv); 561 562 #if defined(__NetBSD__) || defined(__OpenBSD__) 563 powerhook_disestablish(sc->sc_powerhook); 564 shutdownhook_disestablish(sc->sc_shutdownhook); 565 #endif 566 567 /* Free all xfers associated with this HC. */ 568 for (;;) { 569 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 570 if (xfer == NULL) 571 break; 572 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 573 free(xfer, M_USB); 574 } 575 576 /* XXX free other data structures XXX */ 577 578 return (rv); 579 } 580 #endif 581 582 usbd_status 583 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 584 { 585 struct uhci_softc *sc = (struct uhci_softc *)bus; 586 u_int32_t n; 587 588 /* 589 * XXX 590 * Since we are allocating a buffer we can assume that we will 591 * need TDs for it. Since we don't want to allocate those from 592 * an interrupt context, we allocate them here and free them again. 593 * This is no guarantee that we'll get the TDs next time... 594 */ 595 n = size / 8; 596 if (n > 16) { 597 u_int32_t i; 598 uhci_soft_td_t **stds; 599 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 600 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 601 M_WAITOK|M_ZERO); 602 for(i=0; i < n; i++) 603 stds[i] = uhci_alloc_std(sc); 604 for(i=0; i < n; i++) 605 if (stds[i] != NULL) 606 uhci_free_std(sc, stds[i]); 607 free(stds, M_TEMP); 608 } 609 610 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 611 } 612 613 void 614 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 615 { 616 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 617 } 618 619 usbd_xfer_handle 620 uhci_allocx(struct usbd_bus *bus) 621 { 622 struct uhci_softc *sc = (struct uhci_softc *)bus; 623 usbd_xfer_handle xfer; 624 625 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 626 if (xfer != NULL) { 627 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next); 628 #ifdef DIAGNOSTIC 629 if (xfer->busy_free != XFER_FREE) { 630 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 631 xfer->busy_free); 632 } 633 #endif 634 } else { 635 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 636 } 637 if (xfer != NULL) { 638 memset(xfer, 0, sizeof (struct uhci_xfer)); 639 UXFER(xfer)->iinfo.sc = sc; 640 #ifdef DIAGNOSTIC 641 UXFER(xfer)->iinfo.isdone = 1; 642 xfer->busy_free = XFER_BUSY; 643 #endif 644 } 645 return (xfer); 646 } 647 648 void 649 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 650 { 651 struct uhci_softc *sc = (struct uhci_softc *)bus; 652 653 #ifdef DIAGNOSTIC 654 if (xfer->busy_free != XFER_BUSY) { 655 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 656 xfer->busy_free); 657 return; 658 } 659 xfer->busy_free = XFER_FREE; 660 if (!UXFER(xfer)->iinfo.isdone) { 661 printf("uhci_freex: !isdone\n"); 662 return; 663 } 664 #endif 665 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 666 } 667 668 /* 669 * Shut down the controller when the system is going down. 670 */ 671 void 672 uhci_shutdown(void *v) 673 { 674 uhci_softc_t *sc = v; 675 676 DPRINTF(("uhci_shutdown: stopping the HC\n")); 677 uhci_run(sc, 0); /* stop the controller */ 678 } 679 680 /* 681 * Handle suspend/resume. 682 * 683 * We need to switch to polling mode here, because this routine is 684 * called from an interrupt context. This is all right since we 685 * are almost suspended anyway. 686 */ 687 void 688 uhci_power(int why, void *v) 689 { 690 uhci_softc_t *sc = v; 691 int cmd; 692 int s; 693 694 s = splhardusb(); 695 cmd = UREAD2(sc, UHCI_CMD); 696 697 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 698 sc, why, sc->sc_suspend, cmd)); 699 700 switch (why) { 701 case PWR_SUSPEND: 702 case PWR_STANDBY: 703 #ifdef UHCI_DEBUG 704 if (uhcidebug > 2) 705 uhci_dumpregs(sc); 706 #endif 707 if (sc->sc_intr_xfer != NULL) 708 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 709 sc->sc_intr_xfer); 710 sc->sc_bus.use_polling++; 711 uhci_run(sc, 0); /* stop the controller */ 712 713 /* save some state if BIOS doesn't */ 714 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 715 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 716 717 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 718 719 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 720 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 721 sc->sc_suspend = why; 722 sc->sc_bus.use_polling--; 723 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 724 break; 725 case PWR_RESUME: 726 #ifdef DIAGNOSTIC 727 if (sc->sc_suspend == PWR_RESUME) 728 printf("uhci_power: weird, resume without suspend.\n"); 729 #endif 730 sc->sc_bus.use_polling++; 731 sc->sc_suspend = why; 732 if (cmd & UHCI_CMD_RS) 733 uhci_run(sc, 0); /* in case BIOS has started it */ 734 735 /* restore saved state */ 736 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); 737 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 738 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 739 740 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 741 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 742 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 743 UHCICMD(sc, UHCI_CMD_MAXP); 744 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 745 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 746 uhci_run(sc, 1); /* and start traffic again */ 747 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 748 sc->sc_bus.use_polling--; 749 if (sc->sc_intr_xfer != NULL) 750 usb_callout(sc->sc_poll_handle, sc->sc_ival, 751 uhci_poll_hub, sc->sc_intr_xfer); 752 #ifdef UHCI_DEBUG 753 if (uhcidebug > 2) 754 uhci_dumpregs(sc); 755 #endif 756 break; 757 case PWR_SOFTSUSPEND: 758 case PWR_SOFTSTANDBY: 759 case PWR_SOFTRESUME: 760 break; 761 } 762 splx(s); 763 } 764 765 #ifdef UHCI_DEBUG 766 Static void 767 uhci_dumpregs(uhci_softc_t *sc) 768 { 769 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 770 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 771 USBDEVNAME(sc->sc_bus.bdev), 772 UREAD2(sc, UHCI_CMD), 773 UREAD2(sc, UHCI_STS), 774 UREAD2(sc, UHCI_INTR), 775 UREAD2(sc, UHCI_FRNUM), 776 UREAD4(sc, UHCI_FLBASEADDR), 777 UREAD1(sc, UHCI_SOF), 778 UREAD2(sc, UHCI_PORTSC1), 779 UREAD2(sc, UHCI_PORTSC2))); 780 } 781 782 void 783 uhci_dump_td(uhci_soft_td_t *p) 784 { 785 char sbuf[128], sbuf2[128]; 786 787 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 788 "token=0x%08lx buffer=0x%08lx\n", 789 p, (long)p->physaddr, 790 (long)le32toh(p->td.td_link), 791 (long)le32toh(p->td.td_status), 792 (long)le32toh(p->td.td_token), 793 (long)le32toh(p->td.td_buffer))); 794 795 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 796 sbuf, sizeof(sbuf)); 797 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 798 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 799 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 800 sbuf2, sizeof(sbuf2)); 801 802 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 803 "D=%d,maxlen=%d\n", sbuf, sbuf2, 804 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 805 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 806 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 807 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 808 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 809 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 810 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 811 } 812 813 void 814 uhci_dump_qh(uhci_soft_qh_t *sqh) 815 { 816 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 817 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 818 le32toh(sqh->qh.qh_elink))); 819 } 820 821 822 #if 1 823 void 824 uhci_dump(void) 825 { 826 uhci_dump_all(thesc); 827 } 828 #endif 829 830 void 831 uhci_dump_all(uhci_softc_t *sc) 832 { 833 uhci_dumpregs(sc); 834 printf("intrs=%d\n", sc->sc_bus.no_intrs); 835 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 836 uhci_dump_qh(sc->sc_lctl_start); 837 } 838 839 840 void 841 uhci_dump_qhs(uhci_soft_qh_t *sqh) 842 { 843 uhci_dump_qh(sqh); 844 845 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 846 * Traverses sideways first, then down. 847 * 848 * QH1 849 * QH2 850 * No QH 851 * TD2.1 852 * TD2.2 853 * TD1.1 854 * etc. 855 * 856 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 857 */ 858 859 860 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 861 uhci_dump_qhs(sqh->hlink); 862 else 863 DPRINTF(("No QH\n")); 864 865 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 866 uhci_dump_tds(sqh->elink); 867 else 868 DPRINTF(("No TD\n")); 869 } 870 871 void 872 uhci_dump_tds(uhci_soft_td_t *std) 873 { 874 uhci_soft_td_t *td; 875 876 for(td = std; td != NULL; td = td->link.std) { 877 uhci_dump_td(td); 878 879 /* Check whether the link pointer in this TD marks 880 * the link pointer as end of queue. This avoids 881 * printing the free list in case the queue/TD has 882 * already been moved there (seatbelt). 883 */ 884 if (le32toh(td->td.td_link) & UHCI_PTR_T || 885 le32toh(td->td.td_link) == 0) 886 break; 887 } 888 } 889 890 Static void 891 uhci_dump_ii(uhci_intr_info_t *ii) 892 { 893 usbd_pipe_handle pipe; 894 usb_endpoint_descriptor_t *ed; 895 usbd_device_handle dev; 896 897 #ifdef DIAGNOSTIC 898 #define DONE ii->isdone 899 #else 900 #define DONE 0 901 #endif 902 if (ii == NULL) { 903 printf("ii NULL\n"); 904 return; 905 } 906 if (ii->xfer == NULL) { 907 printf("ii %p: done=%d xfer=NULL\n", 908 ii, DONE); 909 return; 910 } 911 pipe = ii->xfer->pipe; 912 if (pipe == NULL) { 913 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 914 ii, DONE, ii->xfer); 915 return; 916 } 917 if (pipe->endpoint == NULL) { 918 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 919 ii, DONE, ii->xfer, pipe); 920 return; 921 } 922 if (pipe->device == NULL) { 923 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 924 ii, DONE, ii->xfer, pipe); 925 return; 926 } 927 ed = pipe->endpoint->edesc; 928 dev = pipe->device; 929 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", 930 ii, DONE, ii->xfer, dev, 931 UGETW(dev->ddesc.idVendor), 932 UGETW(dev->ddesc.idProduct), 933 dev->address, pipe, 934 ed->bEndpointAddress, ed->bmAttributes); 935 #undef DONE 936 } 937 938 void uhci_dump_iis(struct uhci_softc *sc); 939 void 940 uhci_dump_iis(struct uhci_softc *sc) 941 { 942 uhci_intr_info_t *ii; 943 944 printf("intr_info list:\n"); 945 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 946 uhci_dump_ii(ii); 947 } 948 949 void iidump(void); 950 void iidump(void) { uhci_dump_iis(thesc); } 951 952 #endif 953 954 /* 955 * This routine is executed periodically and simulates interrupts 956 * from the root controller interrupt pipe for port status change. 957 */ 958 void 959 uhci_poll_hub(void *addr) 960 { 961 usbd_xfer_handle xfer = addr; 962 usbd_pipe_handle pipe = xfer->pipe; 963 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 964 int s; 965 u_char *p; 966 967 DPRINTFN(20, ("uhci_poll_hub\n")); 968 969 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 970 971 p = KERNADDR(&xfer->dmabuf, 0); 972 p[0] = 0; 973 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 974 p[0] |= 1<<1; 975 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 976 p[0] |= 1<<2; 977 if (p[0] == 0) 978 /* No change, try again in a while */ 979 return; 980 981 xfer->actlen = 1; 982 xfer->status = USBD_NORMAL_COMPLETION; 983 s = splusb(); 984 xfer->device->bus->intr_context++; 985 usb_transfer_complete(xfer); 986 xfer->device->bus->intr_context--; 987 splx(s); 988 } 989 990 void 991 uhci_root_intr_done(usbd_xfer_handle xfer) 992 { 993 } 994 995 void 996 uhci_root_ctrl_done(usbd_xfer_handle xfer) 997 { 998 } 999 1000 /* 1001 * Let the last QH loop back to the high speed control transfer QH. 1002 * This is what intel calls "bandwidth reclamation" and improves 1003 * USB performance a lot for some devices. 1004 * If we are already looping, just count it. 1005 */ 1006 void 1007 uhci_add_loop(uhci_softc_t *sc) { 1008 #ifdef UHCI_DEBUG 1009 if (uhcinoloop) 1010 return; 1011 #endif 1012 if (++sc->sc_loops == 1) { 1013 DPRINTFN(5,("uhci_start_loop: add\n")); 1014 /* Note, we don't loop back the soft pointer. */ 1015 sc->sc_last_qh->qh.qh_hlink = 1016 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1017 } 1018 } 1019 1020 void 1021 uhci_rem_loop(uhci_softc_t *sc) { 1022 #ifdef UHCI_DEBUG 1023 if (uhcinoloop) 1024 return; 1025 #endif 1026 if (--sc->sc_loops == 0) { 1027 DPRINTFN(5,("uhci_end_loop: remove\n")); 1028 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1029 } 1030 } 1031 1032 /* Add high speed control QH, called at splusb(). */ 1033 void 1034 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1035 { 1036 uhci_soft_qh_t *eqh; 1037 1038 SPLUSBCHECK; 1039 1040 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1041 eqh = sc->sc_hctl_end; 1042 sqh->hlink = eqh->hlink; 1043 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1044 eqh->hlink = sqh; 1045 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1046 sc->sc_hctl_end = sqh; 1047 #ifdef UHCI_CTL_LOOP 1048 uhci_add_loop(sc); 1049 #endif 1050 } 1051 1052 /* Remove high speed control QH, called at splusb(). */ 1053 void 1054 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1055 { 1056 uhci_soft_qh_t *pqh; 1057 1058 SPLUSBCHECK; 1059 1060 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1061 #ifdef UHCI_CTL_LOOP 1062 uhci_rem_loop(sc); 1063 #endif 1064 /* 1065 * The T bit should be set in the elink of the QH so that the HC 1066 * doesn't follow the pointer. This condition may fail if the 1067 * the transferred packet was short so that the QH still points 1068 * at the last used TD. 1069 * In this case we set the T bit and wait a little for the HC 1070 * to stop looking at the TD. 1071 */ 1072 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1073 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1074 delay(UHCI_QH_REMOVE_DELAY); 1075 } 1076 1077 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1078 pqh->hlink = sqh->hlink; 1079 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1080 delay(UHCI_QH_REMOVE_DELAY); 1081 if (sc->sc_hctl_end == sqh) 1082 sc->sc_hctl_end = pqh; 1083 } 1084 1085 /* Add low speed control QH, called at splusb(). */ 1086 void 1087 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1088 { 1089 uhci_soft_qh_t *eqh; 1090 1091 SPLUSBCHECK; 1092 1093 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1094 eqh = sc->sc_lctl_end; 1095 sqh->hlink = eqh->hlink; 1096 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1097 eqh->hlink = sqh; 1098 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1099 sc->sc_lctl_end = sqh; 1100 } 1101 1102 /* Remove low speed control QH, called at splusb(). */ 1103 void 1104 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1105 { 1106 uhci_soft_qh_t *pqh; 1107 1108 SPLUSBCHECK; 1109 1110 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1111 /* See comment in uhci_remove_hs_ctrl() */ 1112 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1113 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1114 delay(UHCI_QH_REMOVE_DELAY); 1115 } 1116 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1117 pqh->hlink = sqh->hlink; 1118 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1119 delay(UHCI_QH_REMOVE_DELAY); 1120 if (sc->sc_lctl_end == sqh) 1121 sc->sc_lctl_end = pqh; 1122 } 1123 1124 /* Add bulk QH, called at splusb(). */ 1125 void 1126 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1127 { 1128 uhci_soft_qh_t *eqh; 1129 1130 SPLUSBCHECK; 1131 1132 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1133 eqh = sc->sc_bulk_end; 1134 sqh->hlink = eqh->hlink; 1135 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1136 eqh->hlink = sqh; 1137 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1138 sc->sc_bulk_end = sqh; 1139 uhci_add_loop(sc); 1140 } 1141 1142 /* Remove bulk QH, called at splusb(). */ 1143 void 1144 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1145 { 1146 uhci_soft_qh_t *pqh; 1147 1148 SPLUSBCHECK; 1149 1150 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1151 uhci_rem_loop(sc); 1152 /* See comment in uhci_remove_hs_ctrl() */ 1153 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1154 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1155 delay(UHCI_QH_REMOVE_DELAY); 1156 } 1157 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1158 pqh->hlink = sqh->hlink; 1159 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1160 delay(UHCI_QH_REMOVE_DELAY); 1161 if (sc->sc_bulk_end == sqh) 1162 sc->sc_bulk_end = pqh; 1163 } 1164 1165 Static int uhci_intr1(uhci_softc_t *); 1166 1167 int 1168 uhci_intr(void *arg) 1169 { 1170 uhci_softc_t *sc = arg; 1171 1172 if (sc->sc_dying) 1173 return (0); 1174 1175 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1176 if (sc->sc_bus.use_polling) { 1177 #ifdef DIAGNOSTIC 1178 printf("uhci_intr: ignored interrupt while polling\n"); 1179 #endif 1180 return (0); 1181 } 1182 return (uhci_intr1(sc)); 1183 } 1184 1185 int 1186 uhci_intr1(uhci_softc_t *sc) 1187 { 1188 int status; 1189 int ack; 1190 1191 #ifdef UHCI_DEBUG 1192 if (uhcidebug > 15) { 1193 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1194 uhci_dumpregs(sc); 1195 } 1196 #endif 1197 1198 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1199 if (status == 0) /* The interrupt was not for us. */ 1200 return (0); 1201 1202 if (sc->sc_suspend != PWR_RESUME) { 1203 printf("%s: interrupt while not operating ignored\n", 1204 USBDEVNAME(sc->sc_bus.bdev)); 1205 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1206 return (0); 1207 } 1208 1209 ack = 0; 1210 if (status & UHCI_STS_USBINT) 1211 ack |= UHCI_STS_USBINT; 1212 if (status & UHCI_STS_USBEI) 1213 ack |= UHCI_STS_USBEI; 1214 if (status & UHCI_STS_RD) { 1215 ack |= UHCI_STS_RD; 1216 #ifdef UHCI_DEBUG 1217 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1218 #endif 1219 } 1220 if (status & UHCI_STS_HSE) { 1221 ack |= UHCI_STS_HSE; 1222 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1223 } 1224 if (status & UHCI_STS_HCPE) { 1225 ack |= UHCI_STS_HCPE; 1226 printf("%s: host controller process error\n", 1227 USBDEVNAME(sc->sc_bus.bdev)); 1228 } 1229 if (status & UHCI_STS_HCH) { 1230 /* no acknowledge needed */ 1231 if (!sc->sc_dying) { 1232 printf("%s: host controller halted\n", 1233 USBDEVNAME(sc->sc_bus.bdev)); 1234 #ifdef UHCI_DEBUG 1235 uhci_dump_all(sc); 1236 #endif 1237 } 1238 sc->sc_dying = 1; 1239 } 1240 1241 if (!ack) 1242 return (0); /* nothing to acknowledge */ 1243 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1244 1245 sc->sc_bus.no_intrs++; 1246 usb_schedsoftintr(&sc->sc_bus); 1247 1248 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1249 1250 return (1); 1251 } 1252 1253 void 1254 uhci_softintr(void *v) 1255 { 1256 uhci_softc_t *sc = v; 1257 uhci_intr_info_t *ii; 1258 1259 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1260 sc->sc_bus.intr_context)); 1261 1262 sc->sc_bus.intr_context++; 1263 1264 /* 1265 * Interrupts on UHCI really suck. When the host controller 1266 * interrupts because a transfer is completed there is no 1267 * way of knowing which transfer it was. You can scan down 1268 * the TDs and QHs of the previous frame to limit the search, 1269 * but that assumes that the interrupt was not delayed by more 1270 * than 1 ms, which may not always be true (e.g. after debug 1271 * output on a slow console). 1272 * We scan all interrupt descriptors to see if any have 1273 * completed. 1274 */ 1275 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1276 uhci_check_intr(sc, ii); 1277 1278 if (sc->sc_softwake) { 1279 sc->sc_softwake = 0; 1280 wakeup(&sc->sc_softwake); 1281 } 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\n"); 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\n"); 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\n"); 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 sc->sc_softwake = 1; 1937 usb_schedsoftintr(&sc->sc_bus); 1938 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1939 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1940 splx(s); 1941 1942 /* 1943 * Step 3: Execute callback. 1944 */ 1945 xfer->hcpriv = ii; 1946 1947 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1948 s = splusb(); 1949 #ifdef DIAGNOSTIC 1950 ii->isdone = 1; 1951 #endif 1952 usb_transfer_complete(xfer); 1953 splx(s); 1954 } 1955 1956 /* Close a device bulk pipe. */ 1957 void 1958 uhci_device_bulk_close(usbd_pipe_handle pipe) 1959 { 1960 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1961 usbd_device_handle dev = upipe->pipe.device; 1962 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1963 1964 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1965 } 1966 1967 usbd_status 1968 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1969 { 1970 usbd_status err; 1971 1972 /* Insert last in queue. */ 1973 err = usb_insert_transfer(xfer); 1974 if (err) 1975 return (err); 1976 1977 /* 1978 * Pipe isn't running (otherwise err would be USBD_INPROG), 1979 * so start it first. 1980 */ 1981 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1982 } 1983 1984 usbd_status 1985 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1986 { 1987 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1988 usbd_status err; 1989 1990 if (sc->sc_dying) 1991 return (USBD_IOERROR); 1992 1993 #ifdef DIAGNOSTIC 1994 if (!(xfer->rqflags & URQ_REQUEST)) 1995 panic("uhci_device_ctrl_transfer: not a request\n"); 1996 #endif 1997 1998 err = uhci_device_request(xfer); 1999 if (err) 2000 return (err); 2001 2002 if (sc->sc_bus.use_polling) 2003 uhci_waitintr(sc, xfer); 2004 return (USBD_IN_PROGRESS); 2005 } 2006 2007 usbd_status 2008 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2009 { 2010 usbd_status err; 2011 2012 /* Insert last in queue. */ 2013 err = usb_insert_transfer(xfer); 2014 if (err) 2015 return (err); 2016 2017 /* 2018 * Pipe isn't running (otherwise err would be USBD_INPROG), 2019 * so start it first. 2020 */ 2021 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2022 } 2023 2024 usbd_status 2025 uhci_device_intr_start(usbd_xfer_handle xfer) 2026 { 2027 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2028 usbd_device_handle dev = upipe->pipe.device; 2029 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2030 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2031 uhci_soft_td_t *data, *dataend; 2032 uhci_soft_qh_t *sqh; 2033 usbd_status err; 2034 int i, s; 2035 2036 if (sc->sc_dying) 2037 return (USBD_IOERROR); 2038 2039 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2040 xfer, xfer->length, xfer->flags)); 2041 2042 #ifdef DIAGNOSTIC 2043 if (xfer->rqflags & URQ_REQUEST) 2044 panic("uhci_device_intr_transfer: a request\n"); 2045 #endif 2046 2047 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2048 &xfer->dmabuf, &data, &dataend); 2049 if (err) 2050 return (err); 2051 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2052 2053 #ifdef UHCI_DEBUG 2054 if (uhcidebug > 10) { 2055 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2056 uhci_dump_tds(data); 2057 uhci_dump_qh(upipe->u.intr.qhs[0]); 2058 } 2059 #endif 2060 2061 s = splusb(); 2062 /* Set up interrupt info. */ 2063 ii->xfer = xfer; 2064 ii->stdstart = data; 2065 ii->stdend = dataend; 2066 #ifdef DIAGNOSTIC 2067 if (!ii->isdone) { 2068 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2069 } 2070 ii->isdone = 0; 2071 #endif 2072 2073 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2074 upipe->u.intr.qhs[0])); 2075 for (i = 0; i < upipe->u.intr.npoll; i++) { 2076 sqh = upipe->u.intr.qhs[i]; 2077 sqh->elink = data; 2078 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2079 } 2080 uhci_add_intr_info(sc, ii); 2081 xfer->status = USBD_IN_PROGRESS; 2082 splx(s); 2083 2084 #ifdef UHCI_DEBUG 2085 if (uhcidebug > 10) { 2086 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2087 uhci_dump_tds(data); 2088 uhci_dump_qh(upipe->u.intr.qhs[0]); 2089 } 2090 #endif 2091 2092 return (USBD_IN_PROGRESS); 2093 } 2094 2095 /* Abort a device control request. */ 2096 void 2097 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2098 { 2099 DPRINTF(("uhci_device_ctrl_abort:\n")); 2100 uhci_abort_xfer(xfer, USBD_CANCELLED); 2101 } 2102 2103 /* Close a device control pipe. */ 2104 void 2105 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2106 { 2107 } 2108 2109 /* Abort a device interrupt request. */ 2110 void 2111 uhci_device_intr_abort(usbd_xfer_handle xfer) 2112 { 2113 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2114 if (xfer->pipe->intrxfer == xfer) { 2115 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2116 xfer->pipe->intrxfer = NULL; 2117 } 2118 uhci_abort_xfer(xfer, USBD_CANCELLED); 2119 } 2120 2121 /* Close a device interrupt pipe. */ 2122 void 2123 uhci_device_intr_close(usbd_pipe_handle pipe) 2124 { 2125 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2126 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2127 int i, npoll; 2128 int s; 2129 2130 /* Unlink descriptors from controller data structures. */ 2131 npoll = upipe->u.intr.npoll; 2132 s = splusb(); 2133 for (i = 0; i < npoll; i++) 2134 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2135 splx(s); 2136 2137 /* 2138 * We now have to wait for any activity on the physical 2139 * descriptors to stop. 2140 */ 2141 usb_delay_ms(&sc->sc_bus, 2); 2142 2143 for(i = 0; i < npoll; i++) 2144 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2145 free(upipe->u.intr.qhs, M_USBHC); 2146 2147 /* XXX free other resources */ 2148 } 2149 2150 usbd_status 2151 uhci_device_request(usbd_xfer_handle xfer) 2152 { 2153 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2154 usb_device_request_t *req = &xfer->request; 2155 usbd_device_handle dev = upipe->pipe.device; 2156 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2157 int addr = dev->address; 2158 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2159 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2160 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2161 uhci_soft_qh_t *sqh; 2162 int len; 2163 u_int32_t ls; 2164 usbd_status err; 2165 int isread; 2166 int s; 2167 2168 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2169 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2170 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2171 UGETW(req->wIndex), UGETW(req->wLength), 2172 addr, endpt)); 2173 2174 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2175 isread = req->bmRequestType & UT_READ; 2176 len = UGETW(req->wLength); 2177 2178 setup = upipe->u.ctl.setup; 2179 stat = upipe->u.ctl.stat; 2180 sqh = upipe->u.ctl.sqh; 2181 2182 /* Set up data transaction */ 2183 if (len != 0) { 2184 upipe->nexttoggle = 1; 2185 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2186 &xfer->dmabuf, &data, &dataend); 2187 if (err) 2188 return (err); 2189 next = data; 2190 dataend->link.std = stat; 2191 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2192 } else { 2193 next = stat; 2194 } 2195 upipe->u.ctl.length = len; 2196 2197 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2198 2199 setup->link.std = next; 2200 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2201 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2202 UHCI_TD_ACTIVE); 2203 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2204 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma)); 2205 2206 stat->link.std = NULL; 2207 stat->td.td_link = htole32(UHCI_PTR_T); 2208 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2209 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2210 stat->td.td_token = 2211 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2212 UHCI_TD_IN (0, endpt, addr, 1)); 2213 stat->td.td_buffer = htole32(0); 2214 2215 #ifdef UHCI_DEBUG 2216 if (uhcidebug > 10) { 2217 DPRINTF(("uhci_device_request: before transfer\n")); 2218 uhci_dump_tds(setup); 2219 } 2220 #endif 2221 2222 /* Set up interrupt info. */ 2223 ii->xfer = xfer; 2224 ii->stdstart = setup; 2225 ii->stdend = stat; 2226 #ifdef DIAGNOSTIC 2227 if (!ii->isdone) { 2228 printf("uhci_device_request: not done, ii=%p\n", ii); 2229 } 2230 ii->isdone = 0; 2231 #endif 2232 2233 sqh->elink = setup; 2234 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2235 2236 s = splusb(); 2237 if (dev->speed == USB_SPEED_LOW) 2238 uhci_add_ls_ctrl(sc, sqh); 2239 else 2240 uhci_add_hs_ctrl(sc, sqh); 2241 uhci_add_intr_info(sc, ii); 2242 #ifdef UHCI_DEBUG 2243 if (uhcidebug > 12) { 2244 uhci_soft_td_t *std; 2245 uhci_soft_qh_t *xqh; 2246 uhci_soft_qh_t *sxqh; 2247 int maxqh = 0; 2248 uhci_physaddr_t link; 2249 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2250 for (std = sc->sc_vframes[0].htd, link = 0; 2251 (link & UHCI_PTR_QH) == 0; 2252 std = std->link.std) { 2253 link = le32toh(std->td.td_link); 2254 uhci_dump_td(std); 2255 } 2256 sxqh = (uhci_soft_qh_t *)std; 2257 uhci_dump_qh(sxqh); 2258 for (xqh = sxqh; 2259 xqh != NULL; 2260 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2261 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2262 uhci_dump_qh(xqh); 2263 } 2264 DPRINTF(("Enqueued QH:\n")); 2265 uhci_dump_qh(sqh); 2266 uhci_dump_tds(sqh->elink); 2267 } 2268 #endif 2269 if (xfer->timeout && !sc->sc_bus.use_polling) { 2270 usb_callout(xfer->timeout_handle, MS_TO_TICKS(xfer->timeout), 2271 uhci_timeout, ii); 2272 } 2273 xfer->status = USBD_IN_PROGRESS; 2274 splx(s); 2275 2276 return (USBD_NORMAL_COMPLETION); 2277 } 2278 2279 usbd_status 2280 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2281 { 2282 usbd_status err; 2283 2284 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2285 2286 /* Put it on our queue, */ 2287 err = usb_insert_transfer(xfer); 2288 2289 /* bail out on error, */ 2290 if (err && err != USBD_IN_PROGRESS) 2291 return (err); 2292 2293 /* XXX should check inuse here */ 2294 2295 /* insert into schedule, */ 2296 uhci_device_isoc_enter(xfer); 2297 2298 /* and start if the pipe wasn't running */ 2299 if (!err) 2300 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2301 2302 return (err); 2303 } 2304 2305 void 2306 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2307 { 2308 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2309 usbd_device_handle dev = upipe->pipe.device; 2310 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2311 struct iso *iso = &upipe->u.iso; 2312 uhci_soft_td_t *std; 2313 u_int32_t buf, len, status; 2314 int s, i, next, nframes; 2315 2316 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2317 "nframes=%d\n", 2318 iso->inuse, iso->next, xfer, xfer->nframes)); 2319 2320 if (sc->sc_dying) 2321 return; 2322 2323 if (xfer->status == USBD_IN_PROGRESS) { 2324 /* This request has already been entered into the frame list */ 2325 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2326 /* XXX */ 2327 } 2328 2329 #ifdef DIAGNOSTIC 2330 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2331 printf("uhci_device_isoc_enter: overflow!\n"); 2332 #endif 2333 2334 next = iso->next; 2335 if (next == -1) { 2336 /* Not in use yet, schedule it a few frames ahead. */ 2337 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2338 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2339 } 2340 2341 xfer->status = USBD_IN_PROGRESS; 2342 UXFER(xfer)->curframe = next; 2343 2344 buf = DMAADDR(&xfer->dmabuf); 2345 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2346 UHCI_TD_ACTIVE | 2347 UHCI_TD_IOS); 2348 nframes = xfer->nframes; 2349 s = splusb(); 2350 for (i = 0; i < nframes; i++) { 2351 std = iso->stds[next]; 2352 if (++next >= UHCI_VFRAMELIST_COUNT) 2353 next = 0; 2354 len = xfer->frlengths[i]; 2355 std->td.td_buffer = htole32(buf); 2356 if (i == nframes - 1) 2357 status |= UHCI_TD_IOC; 2358 std->td.td_status = htole32(status); 2359 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2360 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2361 #ifdef UHCI_DEBUG 2362 if (uhcidebug > 5) { 2363 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2364 uhci_dump_td(std); 2365 } 2366 #endif 2367 buf += len; 2368 } 2369 iso->next = next; 2370 iso->inuse += xfer->nframes; 2371 2372 splx(s); 2373 } 2374 2375 usbd_status 2376 uhci_device_isoc_start(usbd_xfer_handle xfer) 2377 { 2378 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2379 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2380 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2381 uhci_soft_td_t *end; 2382 int s, i; 2383 2384 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2385 2386 if (sc->sc_dying) 2387 return (USBD_IOERROR); 2388 2389 #ifdef DIAGNOSTIC 2390 if (xfer->status != USBD_IN_PROGRESS) 2391 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2392 #endif 2393 2394 /* Find the last TD */ 2395 i = UXFER(xfer)->curframe + xfer->nframes; 2396 if (i >= UHCI_VFRAMELIST_COUNT) 2397 i -= UHCI_VFRAMELIST_COUNT; 2398 end = upipe->u.iso.stds[i]; 2399 2400 #ifdef DIAGNOSTIC 2401 if (end == NULL) { 2402 printf("uhci_device_isoc_start: end == NULL\n"); 2403 return (USBD_INVAL); 2404 } 2405 #endif 2406 2407 s = splusb(); 2408 2409 /* Set up interrupt info. */ 2410 ii->xfer = xfer; 2411 ii->stdstart = end; 2412 ii->stdend = end; 2413 #ifdef DIAGNOSTIC 2414 if (!ii->isdone) 2415 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2416 ii->isdone = 0; 2417 #endif 2418 uhci_add_intr_info(sc, ii); 2419 2420 splx(s); 2421 2422 return (USBD_IN_PROGRESS); 2423 } 2424 2425 void 2426 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2427 { 2428 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2429 uhci_soft_td_t **stds = upipe->u.iso.stds; 2430 uhci_soft_td_t *std; 2431 int i, n, s, nframes, maxlen, len; 2432 2433 s = splusb(); 2434 2435 /* Transfer is already done. */ 2436 if (xfer->status != USBD_NOT_STARTED && 2437 xfer->status != USBD_IN_PROGRESS) { 2438 splx(s); 2439 return; 2440 } 2441 2442 /* Give xfer the requested abort code. */ 2443 xfer->status = USBD_CANCELLED; 2444 2445 /* make hardware ignore it, */ 2446 nframes = xfer->nframes; 2447 n = UXFER(xfer)->curframe; 2448 maxlen = 0; 2449 for (i = 0; i < nframes; i++) { 2450 std = stds[n]; 2451 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2452 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2453 if (len > maxlen) 2454 maxlen = len; 2455 if (++n >= UHCI_VFRAMELIST_COUNT) 2456 n = 0; 2457 } 2458 2459 /* and wait until we are sure the hardware has finished. */ 2460 delay(maxlen); 2461 2462 #ifdef DIAGNOSTIC 2463 UXFER(xfer)->iinfo.isdone = 1; 2464 #endif 2465 /* Run callback and remove from interrupt list. */ 2466 usb_transfer_complete(xfer); 2467 2468 splx(s); 2469 } 2470 2471 void 2472 uhci_device_isoc_close(usbd_pipe_handle pipe) 2473 { 2474 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2475 usbd_device_handle dev = upipe->pipe.device; 2476 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2477 uhci_soft_td_t *std, *vstd; 2478 struct iso *iso; 2479 int i, s; 2480 2481 /* 2482 * Make sure all TDs are marked as inactive. 2483 * Wait for completion. 2484 * Unschedule. 2485 * Deallocate. 2486 */ 2487 iso = &upipe->u.iso; 2488 2489 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2490 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2491 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2492 2493 s = splusb(); 2494 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2495 std = iso->stds[i]; 2496 for (vstd = sc->sc_vframes[i].htd; 2497 vstd != NULL && vstd->link.std != std; 2498 vstd = vstd->link.std) 2499 ; 2500 if (vstd == NULL) { 2501 /*panic*/ 2502 printf("uhci_device_isoc_close: %p not found\n", std); 2503 splx(s); 2504 return; 2505 } 2506 vstd->link = std->link; 2507 vstd->td.td_link = std->td.td_link; 2508 uhci_free_std(sc, std); 2509 } 2510 splx(s); 2511 2512 free(iso->stds, M_USBHC); 2513 } 2514 2515 usbd_status 2516 uhci_setup_isoc(usbd_pipe_handle pipe) 2517 { 2518 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2519 usbd_device_handle dev = upipe->pipe.device; 2520 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2521 int addr = upipe->pipe.device->address; 2522 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2523 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2524 uhci_soft_td_t *std, *vstd; 2525 u_int32_t token; 2526 struct iso *iso; 2527 int i, s; 2528 2529 iso = &upipe->u.iso; 2530 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2531 M_USBHC, M_WAITOK); 2532 2533 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2534 UHCI_TD_OUT(0, endpt, addr, 0); 2535 2536 /* Allocate the TDs and mark as inactive; */ 2537 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2538 std = uhci_alloc_std(sc); 2539 if (std == 0) 2540 goto bad; 2541 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2542 std->td.td_token = htole32(token); 2543 iso->stds[i] = std; 2544 } 2545 2546 /* Insert TDs into schedule. */ 2547 s = splusb(); 2548 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2549 std = iso->stds[i]; 2550 vstd = sc->sc_vframes[i].htd; 2551 std->link = vstd->link; 2552 std->td.td_link = vstd->td.td_link; 2553 vstd->link.std = std; 2554 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2555 } 2556 splx(s); 2557 2558 iso->next = -1; 2559 iso->inuse = 0; 2560 2561 return (USBD_NORMAL_COMPLETION); 2562 2563 bad: 2564 while (--i >= 0) 2565 uhci_free_std(sc, iso->stds[i]); 2566 free(iso->stds, M_USBHC); 2567 return (USBD_NOMEM); 2568 } 2569 2570 void 2571 uhci_device_isoc_done(usbd_xfer_handle xfer) 2572 { 2573 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2574 2575 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2576 2577 if (ii->xfer != xfer) 2578 /* Not on interrupt list, ignore it. */ 2579 return; 2580 2581 #ifdef DIAGNOSTIC 2582 if (xfer->busy_free != XFER_BUSY) { 2583 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2584 xfer, xfer->busy_free); 2585 return; 2586 } 2587 2588 if (ii->stdend == NULL) { 2589 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2590 #ifdef UHCI_DEBUG 2591 uhci_dump_ii(ii); 2592 #endif 2593 return; 2594 } 2595 #endif 2596 2597 /* Turn off the interrupt since it is active even if the TD is not. */ 2598 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2599 2600 uhci_del_intr_info(ii); /* remove from active list */ 2601 } 2602 2603 void 2604 uhci_device_intr_done(usbd_xfer_handle xfer) 2605 { 2606 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2607 uhci_softc_t *sc = ii->sc; 2608 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2609 uhci_soft_qh_t *sqh; 2610 int i, npoll; 2611 2612 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2613 2614 npoll = upipe->u.intr.npoll; 2615 for(i = 0; i < npoll; i++) { 2616 sqh = upipe->u.intr.qhs[i]; 2617 sqh->elink = NULL; 2618 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2619 } 2620 uhci_free_std_chain(sc, ii->stdstart, NULL); 2621 2622 /* XXX Wasteful. */ 2623 if (xfer->pipe->repeat) { 2624 uhci_soft_td_t *data, *dataend; 2625 2626 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2627 2628 /* This alloc cannot fail since we freed the chain above. */ 2629 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2630 &xfer->dmabuf, &data, &dataend); 2631 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2632 2633 #ifdef UHCI_DEBUG 2634 if (uhcidebug > 10) { 2635 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2636 uhci_dump_tds(data); 2637 uhci_dump_qh(upipe->u.intr.qhs[0]); 2638 } 2639 #endif 2640 2641 ii->stdstart = data; 2642 ii->stdend = dataend; 2643 #ifdef DIAGNOSTIC 2644 if (!ii->isdone) { 2645 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2646 } 2647 ii->isdone = 0; 2648 #endif 2649 for (i = 0; i < npoll; i++) { 2650 sqh = upipe->u.intr.qhs[i]; 2651 sqh->elink = data; 2652 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2653 } 2654 xfer->status = USBD_IN_PROGRESS; 2655 /* The ii is already on the examined list, just leave it. */ 2656 } else { 2657 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2658 uhci_del_intr_info(ii); 2659 } 2660 } 2661 2662 /* Deallocate request data structures */ 2663 void 2664 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2665 { 2666 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2667 uhci_softc_t *sc = ii->sc; 2668 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2669 2670 #ifdef DIAGNOSTIC 2671 if (!(xfer->rqflags & URQ_REQUEST)) 2672 panic("uhci_ctrl_done: not a request\n"); 2673 #endif 2674 2675 uhci_del_intr_info(ii); /* remove from active list */ 2676 2677 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2678 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2679 else 2680 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2681 2682 if (upipe->u.ctl.length != 0) 2683 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2684 2685 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2686 } 2687 2688 /* Deallocate request data structures */ 2689 void 2690 uhci_device_bulk_done(usbd_xfer_handle xfer) 2691 { 2692 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2693 uhci_softc_t *sc = ii->sc; 2694 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2695 2696 uhci_del_intr_info(ii); /* remove from active list */ 2697 2698 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2699 2700 uhci_free_std_chain(sc, ii->stdstart, NULL); 2701 2702 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2703 } 2704 2705 /* Add interrupt QH, called with vflock. */ 2706 void 2707 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2708 { 2709 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2710 uhci_soft_qh_t *eqh; 2711 2712 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2713 2714 eqh = vf->eqh; 2715 sqh->hlink = eqh->hlink; 2716 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2717 eqh->hlink = sqh; 2718 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2719 vf->eqh = sqh; 2720 vf->bandwidth++; 2721 } 2722 2723 /* Remove interrupt QH. */ 2724 void 2725 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2726 { 2727 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2728 uhci_soft_qh_t *pqh; 2729 2730 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2731 2732 /* See comment in uhci_remove_ctrl() */ 2733 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2734 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2735 delay(UHCI_QH_REMOVE_DELAY); 2736 } 2737 2738 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2739 pqh->hlink = sqh->hlink; 2740 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2741 delay(UHCI_QH_REMOVE_DELAY); 2742 if (vf->eqh == sqh) 2743 vf->eqh = pqh; 2744 vf->bandwidth--; 2745 } 2746 2747 usbd_status 2748 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2749 { 2750 uhci_soft_qh_t *sqh; 2751 int i, npoll, s; 2752 u_int bestbw, bw, bestoffs, offs; 2753 2754 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2755 if (ival == 0) { 2756 printf("uhci_setintr: 0 interval\n"); 2757 return (USBD_INVAL); 2758 } 2759 2760 if (ival > UHCI_VFRAMELIST_COUNT) 2761 ival = UHCI_VFRAMELIST_COUNT; 2762 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2763 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2764 2765 upipe->u.intr.npoll = npoll; 2766 upipe->u.intr.qhs = 2767 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2768 2769 /* 2770 * Figure out which offset in the schedule that has most 2771 * bandwidth left over. 2772 */ 2773 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2774 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2775 for (bw = i = 0; i < npoll; i++) 2776 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2777 if (bw < bestbw) { 2778 bestbw = bw; 2779 bestoffs = offs; 2780 } 2781 } 2782 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2783 2784 for(i = 0; i < npoll; i++) { 2785 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2786 sqh->elink = NULL; 2787 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2788 sqh->pos = MOD(i * ival + bestoffs); 2789 } 2790 #undef MOD 2791 2792 s = splusb(); 2793 /* Enter QHs into the controller data structures. */ 2794 for(i = 0; i < npoll; i++) 2795 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2796 splx(s); 2797 2798 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2799 return (USBD_NORMAL_COMPLETION); 2800 } 2801 2802 /* Open a new pipe. */ 2803 usbd_status 2804 uhci_open(usbd_pipe_handle pipe) 2805 { 2806 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2807 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2808 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2809 usbd_status err; 2810 int ival; 2811 2812 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2813 pipe, pipe->device->address, 2814 ed->bEndpointAddress, sc->sc_addr)); 2815 2816 upipe->aborting = 0; 2817 upipe->nexttoggle = 0; 2818 2819 if (pipe->device->address == sc->sc_addr) { 2820 switch (ed->bEndpointAddress) { 2821 case USB_CONTROL_ENDPOINT: 2822 pipe->methods = &uhci_root_ctrl_methods; 2823 break; 2824 case UE_DIR_IN | UHCI_INTR_ENDPT: 2825 pipe->methods = &uhci_root_intr_methods; 2826 break; 2827 default: 2828 return (USBD_INVAL); 2829 } 2830 } else { 2831 switch (ed->bmAttributes & UE_XFERTYPE) { 2832 case UE_CONTROL: 2833 pipe->methods = &uhci_device_ctrl_methods; 2834 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2835 if (upipe->u.ctl.sqh == NULL) 2836 goto bad; 2837 upipe->u.ctl.setup = uhci_alloc_std(sc); 2838 if (upipe->u.ctl.setup == NULL) { 2839 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2840 goto bad; 2841 } 2842 upipe->u.ctl.stat = uhci_alloc_std(sc); 2843 if (upipe->u.ctl.stat == NULL) { 2844 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2845 uhci_free_std(sc, upipe->u.ctl.setup); 2846 goto bad; 2847 } 2848 err = usb_allocmem(&sc->sc_bus, 2849 sizeof(usb_device_request_t), 2850 0, &upipe->u.ctl.reqdma); 2851 if (err) { 2852 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2853 uhci_free_std(sc, upipe->u.ctl.setup); 2854 uhci_free_std(sc, upipe->u.ctl.stat); 2855 goto bad; 2856 } 2857 break; 2858 case UE_INTERRUPT: 2859 pipe->methods = &uhci_device_intr_methods; 2860 ival = pipe->interval; 2861 if (ival == USBD_DEFAULT_INTERVAL) 2862 ival = ed->bInterval; 2863 return (uhci_device_setintr(sc, upipe, ival)); 2864 case UE_ISOCHRONOUS: 2865 pipe->methods = &uhci_device_isoc_methods; 2866 return (uhci_setup_isoc(pipe)); 2867 case UE_BULK: 2868 pipe->methods = &uhci_device_bulk_methods; 2869 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2870 if (upipe->u.bulk.sqh == NULL) 2871 goto bad; 2872 break; 2873 } 2874 } 2875 return (USBD_NORMAL_COMPLETION); 2876 2877 bad: 2878 return (USBD_NOMEM); 2879 } 2880 2881 /* 2882 * Data structures and routines to emulate the root hub. 2883 */ 2884 usb_device_descriptor_t uhci_devd = { 2885 USB_DEVICE_DESCRIPTOR_SIZE, 2886 UDESC_DEVICE, /* type */ 2887 {0x00, 0x01}, /* USB version */ 2888 UDCLASS_HUB, /* class */ 2889 UDSUBCLASS_HUB, /* subclass */ 2890 UDPROTO_FSHUB, /* protocol */ 2891 64, /* max packet */ 2892 {0},{0},{0x00,0x01}, /* device id */ 2893 1,2,0, /* string indicies */ 2894 1 /* # of configurations */ 2895 }; 2896 2897 usb_config_descriptor_t uhci_confd = { 2898 USB_CONFIG_DESCRIPTOR_SIZE, 2899 UDESC_CONFIG, 2900 {USB_CONFIG_DESCRIPTOR_SIZE + 2901 USB_INTERFACE_DESCRIPTOR_SIZE + 2902 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2903 1, 2904 1, 2905 0, 2906 UC_SELF_POWERED, 2907 0 /* max power */ 2908 }; 2909 2910 usb_interface_descriptor_t uhci_ifcd = { 2911 USB_INTERFACE_DESCRIPTOR_SIZE, 2912 UDESC_INTERFACE, 2913 0, 2914 0, 2915 1, 2916 UICLASS_HUB, 2917 UISUBCLASS_HUB, 2918 UIPROTO_FSHUB, 2919 0 2920 }; 2921 2922 usb_endpoint_descriptor_t uhci_endpd = { 2923 USB_ENDPOINT_DESCRIPTOR_SIZE, 2924 UDESC_ENDPOINT, 2925 UE_DIR_IN | UHCI_INTR_ENDPT, 2926 UE_INTERRUPT, 2927 {8}, 2928 255 2929 }; 2930 2931 usb_hub_descriptor_t uhci_hubd_piix = { 2932 USB_HUB_DESCRIPTOR_SIZE, 2933 UDESC_HUB, 2934 2, 2935 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2936 50, /* power on to power good */ 2937 0, 2938 { 0x00 }, /* both ports are removable */ 2939 }; 2940 2941 int 2942 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2943 { 2944 int i; 2945 2946 if (l == 0) 2947 return (0); 2948 p->bLength = 2 * strlen(s) + 2; 2949 if (l == 1) 2950 return (1); 2951 p->bDescriptorType = UDESC_STRING; 2952 l -= 2; 2953 for (i = 0; s[i] && l > 1; i++, l -= 2) 2954 USETW2(p->bString[i], 0, s[i]); 2955 return (2*i+2); 2956 } 2957 2958 /* 2959 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2960 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2961 * should not be used by the USB subsystem. As we cannot issue a 2962 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2963 * will be enabled as part of the reset. 2964 * 2965 * On the VT83C572, the port cannot be successfully enabled until the 2966 * outstanding "port enable change" and "connection status change" 2967 * events have been reset. 2968 */ 2969 Static usbd_status 2970 uhci_portreset(uhci_softc_t *sc, int index) 2971 { 2972 int lim, port, x; 2973 2974 if (index == 1) 2975 port = UHCI_PORTSC1; 2976 else if (index == 2) 2977 port = UHCI_PORTSC2; 2978 else 2979 return (USBD_IOERROR); 2980 2981 x = URWMASK(UREAD2(sc, port)); 2982 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2983 2984 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 2985 2986 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 2987 index, UREAD2(sc, port))); 2988 2989 x = URWMASK(UREAD2(sc, port)); 2990 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2991 2992 delay(100); 2993 2994 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 2995 index, UREAD2(sc, port))); 2996 2997 x = URWMASK(UREAD2(sc, port)); 2998 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2999 3000 for (lim = 10; --lim > 0;) { 3001 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3002 3003 x = UREAD2(sc, port); 3004 3005 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3006 index, lim, x)); 3007 3008 if (!(x & UHCI_PORTSC_CCS)) { 3009 /* 3010 * No device is connected (or was disconnected 3011 * during reset). Consider the port reset. 3012 * The delay must be long enough to ensure on 3013 * the initial iteration that the device 3014 * connection will have been registered. 50ms 3015 * appears to be sufficient, but 20ms is not. 3016 */ 3017 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3018 index, lim)); 3019 break; 3020 } 3021 3022 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3023 /* 3024 * Port enabled changed and/or connection 3025 * status changed were set. Reset either or 3026 * both raised flags (by writing a 1 to that 3027 * bit), and wait again for state to settle. 3028 */ 3029 UWRITE2(sc, port, URWMASK(x) | 3030 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3031 continue; 3032 } 3033 3034 if (x & UHCI_PORTSC_PE) 3035 /* Port is enabled */ 3036 break; 3037 3038 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3039 } 3040 3041 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3042 index, UREAD2(sc, port))); 3043 3044 if (lim <= 0) { 3045 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3046 return (USBD_TIMEOUT); 3047 } 3048 3049 sc->sc_isreset = 1; 3050 return (USBD_NORMAL_COMPLETION); 3051 } 3052 3053 /* 3054 * Simulate a hardware hub by handling all the necessary requests. 3055 */ 3056 usbd_status 3057 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3058 { 3059 usbd_status err; 3060 3061 /* Insert last in queue. */ 3062 err = usb_insert_transfer(xfer); 3063 if (err) 3064 return (err); 3065 3066 /* 3067 * Pipe isn't running (otherwise err would be USBD_INPROG), 3068 * so start it first. 3069 */ 3070 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3071 } 3072 3073 usbd_status 3074 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3075 { 3076 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3077 usb_device_request_t *req; 3078 void *buf = NULL; 3079 int port, x; 3080 int s, len, value, index, status, change, l, totlen = 0; 3081 usb_port_status_t ps; 3082 usbd_status err; 3083 3084 if (sc->sc_dying) 3085 return (USBD_IOERROR); 3086 3087 #ifdef DIAGNOSTIC 3088 if (!(xfer->rqflags & URQ_REQUEST)) 3089 panic("uhci_root_ctrl_transfer: not a request\n"); 3090 #endif 3091 req = &xfer->request; 3092 3093 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3094 req->bmRequestType, req->bRequest)); 3095 3096 len = UGETW(req->wLength); 3097 value = UGETW(req->wValue); 3098 index = UGETW(req->wIndex); 3099 3100 if (len != 0) 3101 buf = KERNADDR(&xfer->dmabuf, 0); 3102 3103 #define C(x,y) ((x) | ((y) << 8)) 3104 switch(C(req->bRequest, req->bmRequestType)) { 3105 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3106 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3107 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3108 /* 3109 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3110 * for the integrated root hub. 3111 */ 3112 break; 3113 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3114 if (len > 0) { 3115 *(u_int8_t *)buf = sc->sc_conf; 3116 totlen = 1; 3117 } 3118 break; 3119 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3120 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3121 switch(value >> 8) { 3122 case UDESC_DEVICE: 3123 if ((value & 0xff) != 0) { 3124 err = USBD_IOERROR; 3125 goto ret; 3126 } 3127 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3128 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3129 memcpy(buf, &uhci_devd, l); 3130 break; 3131 case UDESC_CONFIG: 3132 if ((value & 0xff) != 0) { 3133 err = USBD_IOERROR; 3134 goto ret; 3135 } 3136 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3137 memcpy(buf, &uhci_confd, l); 3138 buf = (char *)buf + l; 3139 len -= l; 3140 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3141 totlen += l; 3142 memcpy(buf, &uhci_ifcd, l); 3143 buf = (char *)buf + l; 3144 len -= l; 3145 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3146 totlen += l; 3147 memcpy(buf, &uhci_endpd, l); 3148 break; 3149 case UDESC_STRING: 3150 if (len == 0) 3151 break; 3152 *(u_int8_t *)buf = 0; 3153 totlen = 1; 3154 switch (value & 0xff) { 3155 case 1: /* Vendor */ 3156 totlen = uhci_str(buf, len, sc->sc_vendor); 3157 break; 3158 case 2: /* Product */ 3159 totlen = uhci_str(buf, len, "UHCI root hub"); 3160 break; 3161 } 3162 break; 3163 default: 3164 err = USBD_IOERROR; 3165 goto ret; 3166 } 3167 break; 3168 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3169 if (len > 0) { 3170 *(u_int8_t *)buf = 0; 3171 totlen = 1; 3172 } 3173 break; 3174 case C(UR_GET_STATUS, UT_READ_DEVICE): 3175 if (len > 1) { 3176 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3177 totlen = 2; 3178 } 3179 break; 3180 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3181 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3182 if (len > 1) { 3183 USETW(((usb_status_t *)buf)->wStatus, 0); 3184 totlen = 2; 3185 } 3186 break; 3187 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3188 if (value >= USB_MAX_DEVICES) { 3189 err = USBD_IOERROR; 3190 goto ret; 3191 } 3192 sc->sc_addr = value; 3193 break; 3194 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3195 if (value != 0 && value != 1) { 3196 err = USBD_IOERROR; 3197 goto ret; 3198 } 3199 sc->sc_conf = value; 3200 break; 3201 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3202 break; 3203 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3204 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3205 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3206 err = USBD_IOERROR; 3207 goto ret; 3208 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3209 break; 3210 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3211 break; 3212 /* Hub requests */ 3213 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3214 break; 3215 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3216 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3217 "port=%d feature=%d\n", 3218 index, value)); 3219 if (index == 1) 3220 port = UHCI_PORTSC1; 3221 else if (index == 2) 3222 port = UHCI_PORTSC2; 3223 else { 3224 err = USBD_IOERROR; 3225 goto ret; 3226 } 3227 switch(value) { 3228 case UHF_PORT_ENABLE: 3229 x = URWMASK(UREAD2(sc, port)); 3230 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3231 break; 3232 case UHF_PORT_SUSPEND: 3233 x = URWMASK(UREAD2(sc, port)); 3234 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3235 break; 3236 case UHF_PORT_RESET: 3237 x = URWMASK(UREAD2(sc, port)); 3238 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3239 break; 3240 case UHF_C_PORT_CONNECTION: 3241 x = URWMASK(UREAD2(sc, port)); 3242 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3243 break; 3244 case UHF_C_PORT_ENABLE: 3245 x = URWMASK(UREAD2(sc, port)); 3246 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3247 break; 3248 case UHF_C_PORT_OVER_CURRENT: 3249 x = URWMASK(UREAD2(sc, port)); 3250 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3251 break; 3252 case UHF_C_PORT_RESET: 3253 sc->sc_isreset = 0; 3254 err = USBD_NORMAL_COMPLETION; 3255 goto ret; 3256 case UHF_PORT_CONNECTION: 3257 case UHF_PORT_OVER_CURRENT: 3258 case UHF_PORT_POWER: 3259 case UHF_PORT_LOW_SPEED: 3260 case UHF_C_PORT_SUSPEND: 3261 default: 3262 err = USBD_IOERROR; 3263 goto ret; 3264 } 3265 break; 3266 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3267 if (index == 1) 3268 port = UHCI_PORTSC1; 3269 else if (index == 2) 3270 port = UHCI_PORTSC2; 3271 else { 3272 err = USBD_IOERROR; 3273 goto ret; 3274 } 3275 if (len > 0) { 3276 *(u_int8_t *)buf = 3277 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3278 UHCI_PORTSC_LS_SHIFT; 3279 totlen = 1; 3280 } 3281 break; 3282 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3283 if ((value & 0xff) != 0) { 3284 err = USBD_IOERROR; 3285 goto ret; 3286 } 3287 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3288 totlen = l; 3289 memcpy(buf, &uhci_hubd_piix, l); 3290 break; 3291 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3292 if (len != 4) { 3293 err = USBD_IOERROR; 3294 goto ret; 3295 } 3296 memset(buf, 0, len); 3297 totlen = len; 3298 break; 3299 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3300 if (index == 1) 3301 port = UHCI_PORTSC1; 3302 else if (index == 2) 3303 port = UHCI_PORTSC2; 3304 else { 3305 err = USBD_IOERROR; 3306 goto ret; 3307 } 3308 if (len != 4) { 3309 err = USBD_IOERROR; 3310 goto ret; 3311 } 3312 x = UREAD2(sc, port); 3313 status = change = 0; 3314 if (x & UHCI_PORTSC_CCS) 3315 status |= UPS_CURRENT_CONNECT_STATUS; 3316 if (x & UHCI_PORTSC_CSC) 3317 change |= UPS_C_CONNECT_STATUS; 3318 if (x & UHCI_PORTSC_PE) 3319 status |= UPS_PORT_ENABLED; 3320 if (x & UHCI_PORTSC_POEDC) 3321 change |= UPS_C_PORT_ENABLED; 3322 if (x & UHCI_PORTSC_OCI) 3323 status |= UPS_OVERCURRENT_INDICATOR; 3324 if (x & UHCI_PORTSC_OCIC) 3325 change |= UPS_C_OVERCURRENT_INDICATOR; 3326 if (x & UHCI_PORTSC_SUSP) 3327 status |= UPS_SUSPEND; 3328 if (x & UHCI_PORTSC_LSDA) 3329 status |= UPS_LOW_SPEED; 3330 status |= UPS_PORT_POWER; 3331 if (sc->sc_isreset) 3332 change |= UPS_C_PORT_RESET; 3333 USETW(ps.wPortStatus, status); 3334 USETW(ps.wPortChange, change); 3335 l = min(len, sizeof ps); 3336 memcpy(buf, &ps, l); 3337 totlen = l; 3338 break; 3339 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3340 err = USBD_IOERROR; 3341 goto ret; 3342 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3343 break; 3344 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3345 if (index == 1) 3346 port = UHCI_PORTSC1; 3347 else if (index == 2) 3348 port = UHCI_PORTSC2; 3349 else { 3350 err = USBD_IOERROR; 3351 goto ret; 3352 } 3353 switch(value) { 3354 case UHF_PORT_ENABLE: 3355 x = URWMASK(UREAD2(sc, port)); 3356 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3357 break; 3358 case UHF_PORT_SUSPEND: 3359 x = URWMASK(UREAD2(sc, port)); 3360 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3361 break; 3362 case UHF_PORT_RESET: 3363 err = uhci_portreset(sc, index); 3364 goto ret; 3365 case UHF_PORT_POWER: 3366 /* Pretend we turned on power */ 3367 err = USBD_NORMAL_COMPLETION; 3368 goto ret; 3369 case UHF_C_PORT_CONNECTION: 3370 case UHF_C_PORT_ENABLE: 3371 case UHF_C_PORT_OVER_CURRENT: 3372 case UHF_PORT_CONNECTION: 3373 case UHF_PORT_OVER_CURRENT: 3374 case UHF_PORT_LOW_SPEED: 3375 case UHF_C_PORT_SUSPEND: 3376 case UHF_C_PORT_RESET: 3377 default: 3378 err = USBD_IOERROR; 3379 goto ret; 3380 } 3381 break; 3382 default: 3383 err = USBD_IOERROR; 3384 goto ret; 3385 } 3386 xfer->actlen = totlen; 3387 err = USBD_NORMAL_COMPLETION; 3388 ret: 3389 xfer->status = err; 3390 s = splusb(); 3391 usb_transfer_complete(xfer); 3392 splx(s); 3393 return (USBD_IN_PROGRESS); 3394 } 3395 3396 /* Abort a root control request. */ 3397 void 3398 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3399 { 3400 /* Nothing to do, all transfers are synchronous. */ 3401 } 3402 3403 /* Close the root pipe. */ 3404 void 3405 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3406 { 3407 DPRINTF(("uhci_root_ctrl_close\n")); 3408 } 3409 3410 /* Abort a root interrupt request. */ 3411 void 3412 uhci_root_intr_abort(usbd_xfer_handle xfer) 3413 { 3414 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3415 3416 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3417 sc->sc_intr_xfer = NULL; 3418 3419 if (xfer->pipe->intrxfer == xfer) { 3420 DPRINTF(("uhci_root_intr_abort: remove\n")); 3421 xfer->pipe->intrxfer = 0; 3422 } 3423 xfer->status = USBD_CANCELLED; 3424 #ifdef DIAGNOSTIC 3425 UXFER(xfer)->iinfo.isdone = 1; 3426 #endif 3427 usb_transfer_complete(xfer); 3428 } 3429 3430 usbd_status 3431 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3432 { 3433 usbd_status err; 3434 3435 /* Insert last in queue. */ 3436 err = usb_insert_transfer(xfer); 3437 if (err) 3438 return (err); 3439 3440 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3441 * start first 3442 */ 3443 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3444 } 3445 3446 /* Start a transfer on the root interrupt pipe */ 3447 usbd_status 3448 uhci_root_intr_start(usbd_xfer_handle xfer) 3449 { 3450 usbd_pipe_handle pipe = xfer->pipe; 3451 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3452 3453 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3454 xfer, xfer->length, xfer->flags)); 3455 3456 if (sc->sc_dying) 3457 return (USBD_IOERROR); 3458 3459 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3460 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3461 sc->sc_intr_xfer = xfer; 3462 return (USBD_IN_PROGRESS); 3463 } 3464 3465 /* Close the root interrupt pipe. */ 3466 void 3467 uhci_root_intr_close(usbd_pipe_handle pipe) 3468 { 3469 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3470 3471 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3472 sc->sc_intr_xfer = NULL; 3473 DPRINTF(("uhci_root_intr_close\n")); 3474 } 3475
Indexes created Tue Sep 30 17:09:57 GMT 2025