uhci.c revision 1.171
1 /* $NetBSD: uhci.c,v 1.171 2003/02/22 05:24:17 tsutsui Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (at) augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm 46 * USB spec: http://www.usb.org/developers/docs/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 1.171 2003/02/22 05:24:17 tsutsui 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 #if defined(__OpenBSD__) 94 struct cfdriver uhci_cd = { 95 NULL, "uhci", DV_DULL 96 }; 97 #endif 98 99 #ifdef UHCI_DEBUG 100 uhci_softc_t *thesc; 101 #define DPRINTF(x) if (uhcidebug) printf x 102 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 103 int uhcidebug = 0; 104 int uhcinoloop = 0; 105 #ifndef __NetBSD__ 106 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 107 #endif 108 #else 109 #define DPRINTF(x) 110 #define DPRINTFN(n,x) 111 #endif 112 113 /* 114 * The UHCI controller is little endian, so on big endian machines 115 * the data strored in memory needs to be swapped. 116 */ 117 #if defined(__FreeBSD__) || defined(__OpenBSD__) 118 #if BYTE_ORDER == BIG_ENDIAN 119 #define htole32(x) (bswap32(x)) 120 #define le32toh(x) (bswap32(x)) 121 #else 122 #define htole32(x) (x) 123 #define le32toh(x) (x) 124 #endif 125 #endif 126 127 struct uhci_pipe { 128 struct usbd_pipe pipe; 129 int nexttoggle; 130 131 u_char aborting; 132 usbd_xfer_handle abortstart, abortend; 133 134 /* Info needed for different pipe kinds. */ 135 union { 136 /* Control pipe */ 137 struct { 138 uhci_soft_qh_t *sqh; 139 usb_dma_t reqdma; 140 uhci_soft_td_t *setup, *stat; 141 u_int length; 142 } ctl; 143 /* Interrupt pipe */ 144 struct { 145 int npoll; 146 uhci_soft_qh_t **qhs; 147 } intr; 148 /* Bulk pipe */ 149 struct { 150 uhci_soft_qh_t *sqh; 151 u_int length; 152 int isread; 153 } bulk; 154 /* Iso pipe */ 155 struct iso { 156 uhci_soft_td_t **stds; 157 int next, inuse; 158 } iso; 159 } u; 160 }; 161 162 Static void uhci_globalreset(uhci_softc_t *); 163 Static usbd_status uhci_portreset(uhci_softc_t*, int); 164 Static void uhci_reset(uhci_softc_t *); 165 Static void uhci_shutdown(void *v); 166 Static void uhci_power(int, void *); 167 Static usbd_status uhci_run(uhci_softc_t *, int run); 168 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 169 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 170 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 171 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 172 #if 0 173 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 174 uhci_intr_info_t *); 175 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 176 #endif 177 178 Static void uhci_free_std_chain(uhci_softc_t *, 179 uhci_soft_td_t *, uhci_soft_td_t *); 180 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 181 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 182 uhci_soft_td_t **, uhci_soft_td_t **); 183 Static void uhci_poll_hub(void *); 184 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 185 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 186 Static void uhci_idone(uhci_intr_info_t *); 187 188 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 189 190 Static void uhci_timeout(void *); 191 Static void uhci_timeout_task(void *); 192 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 193 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 194 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 196 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 197 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 198 Static int uhci_str(usb_string_descriptor_t *, int, char *); 199 Static void uhci_add_loop(uhci_softc_t *sc); 200 Static void uhci_rem_loop(uhci_softc_t *sc); 201 202 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 203 Static void uhci_device_isoc_enter(usbd_xfer_handle); 204 205 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 206 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 207 208 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 209 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 210 211 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 212 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 213 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 214 Static void uhci_device_ctrl_close(usbd_pipe_handle); 215 Static void uhci_device_ctrl_done(usbd_xfer_handle); 216 217 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 218 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 219 Static void uhci_device_intr_abort(usbd_xfer_handle); 220 Static void uhci_device_intr_close(usbd_pipe_handle); 221 Static void uhci_device_intr_done(usbd_xfer_handle); 222 223 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 224 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 225 Static void uhci_device_bulk_abort(usbd_xfer_handle); 226 Static void uhci_device_bulk_close(usbd_pipe_handle); 227 Static void uhci_device_bulk_done(usbd_xfer_handle); 228 229 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 230 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 231 Static void uhci_device_isoc_abort(usbd_xfer_handle); 232 Static void uhci_device_isoc_close(usbd_pipe_handle); 233 Static void uhci_device_isoc_done(usbd_xfer_handle); 234 235 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 236 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 237 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 238 Static void uhci_root_ctrl_close(usbd_pipe_handle); 239 Static void uhci_root_ctrl_done(usbd_xfer_handle); 240 241 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 242 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 243 Static void uhci_root_intr_abort(usbd_xfer_handle); 244 Static void uhci_root_intr_close(usbd_pipe_handle); 245 Static void uhci_root_intr_done(usbd_xfer_handle); 246 247 Static usbd_status uhci_open(usbd_pipe_handle); 248 Static void uhci_poll(struct usbd_bus *); 249 Static void uhci_softintr(void *); 250 251 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 252 253 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 254 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 255 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 256 struct uhci_pipe *pipe, int ival); 257 258 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 259 Static void uhci_noop(usbd_pipe_handle pipe); 260 261 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 262 uhci_soft_qh_t *); 263 264 #ifdef UHCI_DEBUG 265 Static void uhci_dump_all(uhci_softc_t *); 266 Static void uhci_dumpregs(uhci_softc_t *); 267 Static void uhci_dump_qhs(uhci_soft_qh_t *); 268 Static void uhci_dump_qh(uhci_soft_qh_t *); 269 Static void uhci_dump_tds(uhci_soft_td_t *); 270 Static void uhci_dump_td(uhci_soft_td_t *); 271 Static void uhci_dump_ii(uhci_intr_info_t *ii); 272 void uhci_dump(void); 273 #endif 274 275 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 276 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 277 #define UWRITE1(sc, r, x) \ 278 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 279 } while (/*CONSTCOND*/0) 280 #define UWRITE2(sc, r, x) \ 281 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 282 } while (/*CONSTCOND*/0) 283 #define UWRITE4(sc, r, x) \ 284 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 285 } while (/*CONSTCOND*/0) 286 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 287 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 288 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 289 290 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 291 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 292 293 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 294 295 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 296 297 #define UHCI_INTR_ENDPT 1 298 299 struct usbd_bus_methods uhci_bus_methods = { 300 uhci_open, 301 uhci_softintr, 302 uhci_poll, 303 uhci_allocm, 304 uhci_freem, 305 uhci_allocx, 306 uhci_freex, 307 }; 308 309 struct usbd_pipe_methods uhci_root_ctrl_methods = { 310 uhci_root_ctrl_transfer, 311 uhci_root_ctrl_start, 312 uhci_root_ctrl_abort, 313 uhci_root_ctrl_close, 314 uhci_noop, 315 uhci_root_ctrl_done, 316 }; 317 318 struct usbd_pipe_methods uhci_root_intr_methods = { 319 uhci_root_intr_transfer, 320 uhci_root_intr_start, 321 uhci_root_intr_abort, 322 uhci_root_intr_close, 323 uhci_noop, 324 uhci_root_intr_done, 325 }; 326 327 struct usbd_pipe_methods uhci_device_ctrl_methods = { 328 uhci_device_ctrl_transfer, 329 uhci_device_ctrl_start, 330 uhci_device_ctrl_abort, 331 uhci_device_ctrl_close, 332 uhci_noop, 333 uhci_device_ctrl_done, 334 }; 335 336 struct usbd_pipe_methods uhci_device_intr_methods = { 337 uhci_device_intr_transfer, 338 uhci_device_intr_start, 339 uhci_device_intr_abort, 340 uhci_device_intr_close, 341 uhci_device_clear_toggle, 342 uhci_device_intr_done, 343 }; 344 345 struct usbd_pipe_methods uhci_device_bulk_methods = { 346 uhci_device_bulk_transfer, 347 uhci_device_bulk_start, 348 uhci_device_bulk_abort, 349 uhci_device_bulk_close, 350 uhci_device_clear_toggle, 351 uhci_device_bulk_done, 352 }; 353 354 struct usbd_pipe_methods uhci_device_isoc_methods = { 355 uhci_device_isoc_transfer, 356 uhci_device_isoc_start, 357 uhci_device_isoc_abort, 358 uhci_device_isoc_close, 359 uhci_noop, 360 uhci_device_isoc_done, 361 }; 362 363 #define uhci_add_intr_info(sc, ii) \ 364 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 365 #define uhci_del_intr_info(ii) \ 366 do { \ 367 LIST_REMOVE((ii), list); \ 368 (ii)->list.le_prev = NULL; \ 369 } while (0) 370 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 371 372 Static __inline__ uhci_soft_qh_t * 373 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 374 { 375 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 376 377 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 378 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 379 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 380 printf("uhci_find_prev_qh: QH not found\n"); 381 return (NULL); 382 } 383 #endif 384 } 385 return (pqh); 386 } 387 388 void 389 uhci_globalreset(uhci_softc_t *sc) 390 { 391 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 392 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 393 UHCICMD(sc, 0); /* do nothing */ 394 } 395 396 usbd_status 397 uhci_init(uhci_softc_t *sc) 398 { 399 usbd_status err; 400 int i, j; 401 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 402 uhci_soft_td_t *std; 403 404 DPRINTFN(1,("uhci_init: start\n")); 405 406 #ifdef UHCI_DEBUG 407 thesc = sc; 408 409 if (uhcidebug > 2) 410 uhci_dumpregs(sc); 411 #endif 412 413 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 414 uhci_globalreset(sc); /* reset the controller */ 415 uhci_reset(sc); 416 417 /* Allocate and initialize real frame array. */ 418 err = usb_allocmem(&sc->sc_bus, 419 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 420 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 421 if (err) 422 return (err); 423 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 424 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 425 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 426 427 /* 428 * Allocate a TD, inactive, that hangs from the last QH. 429 * This is to avoid a bug in the PIIX that makes it run berserk 430 * otherwise. 431 */ 432 std = uhci_alloc_std(sc); 433 if (std == NULL) 434 return (USBD_NOMEM); 435 std->link.std = NULL; 436 std->td.td_link = htole32(UHCI_PTR_T); 437 std->td.td_status = htole32(0); /* inactive */ 438 std->td.td_token = htole32(0); 439 std->td.td_buffer = htole32(0); 440 441 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 442 lsqh = uhci_alloc_sqh(sc); 443 if (lsqh == NULL) 444 return (USBD_NOMEM); 445 lsqh->hlink = NULL; 446 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 447 lsqh->elink = std; 448 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 449 sc->sc_last_qh = lsqh; 450 451 /* Allocate the dummy QH where bulk traffic will be queued. */ 452 bsqh = uhci_alloc_sqh(sc); 453 if (bsqh == NULL) 454 return (USBD_NOMEM); 455 bsqh->hlink = lsqh; 456 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 457 bsqh->elink = NULL; 458 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 459 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 460 461 /* Allocate dummy QH where high speed control traffic will be queued. */ 462 chsqh = uhci_alloc_sqh(sc); 463 if (chsqh == NULL) 464 return (USBD_NOMEM); 465 chsqh->hlink = bsqh; 466 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 467 chsqh->elink = NULL; 468 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 469 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 470 471 /* Allocate dummy QH where control traffic will be queued. */ 472 clsqh = uhci_alloc_sqh(sc); 473 if (clsqh == NULL) 474 return (USBD_NOMEM); 475 clsqh->hlink = bsqh; 476 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 477 clsqh->elink = NULL; 478 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 479 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 480 481 /* 482 * Make all (virtual) frame list pointers point to the interrupt 483 * queue heads and the interrupt queue heads at the control 484 * queue head and point the physical frame list to the virtual. 485 */ 486 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 487 std = uhci_alloc_std(sc); 488 sqh = uhci_alloc_sqh(sc); 489 if (std == NULL || sqh == NULL) 490 return (USBD_NOMEM); 491 std->link.sqh = sqh; 492 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 493 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 494 std->td.td_token = htole32(0); 495 std->td.td_buffer = htole32(0); 496 sqh->hlink = clsqh; 497 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 498 sqh->elink = NULL; 499 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 500 sc->sc_vframes[i].htd = std; 501 sc->sc_vframes[i].etd = std; 502 sc->sc_vframes[i].hqh = sqh; 503 sc->sc_vframes[i].eqh = sqh; 504 for (j = i; 505 j < UHCI_FRAMELIST_COUNT; 506 j += UHCI_VFRAMELIST_COUNT) 507 sc->sc_pframes[j] = htole32(std->physaddr); 508 } 509 510 LIST_INIT(&sc->sc_intrhead); 511 512 SIMPLEQ_INIT(&sc->sc_free_xfers); 513 514 usb_callout_init(sc->sc_poll_handle); 515 516 /* Set up the bus struct. */ 517 sc->sc_bus.methods = &uhci_bus_methods; 518 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 519 520 #if defined(__NetBSD__) || defined(__OpenBSD__) 521 sc->sc_suspend = PWR_RESUME; 522 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 523 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 524 #endif 525 526 DPRINTFN(1,("uhci_init: enabling\n")); 527 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 528 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 529 530 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 531 532 return (uhci_run(sc, 1)); /* and here we go... */ 533 } 534 535 #if defined(__NetBSD__) || defined(__OpenBSD__) 536 int 537 uhci_activate(device_ptr_t self, enum devact act) 538 { 539 struct uhci_softc *sc = (struct uhci_softc *)self; 540 int rv = 0; 541 542 switch (act) { 543 case DVACT_ACTIVATE: 544 return (EOPNOTSUPP); 545 break; 546 547 case DVACT_DEACTIVATE: 548 if (sc->sc_child != NULL) 549 rv = config_deactivate(sc->sc_child); 550 break; 551 } 552 return (rv); 553 } 554 555 int 556 uhci_detach(struct uhci_softc *sc, int flags) 557 { 558 usbd_xfer_handle xfer; 559 int rv = 0; 560 561 if (sc->sc_child != NULL) 562 rv = config_detach(sc->sc_child, flags); 563 564 if (rv != 0) 565 return (rv); 566 567 #if defined(__NetBSD__) || defined(__OpenBSD__) 568 powerhook_disestablish(sc->sc_powerhook); 569 shutdownhook_disestablish(sc->sc_shutdownhook); 570 #endif 571 572 /* Free all xfers associated with this HC. */ 573 for (;;) { 574 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 575 if (xfer == NULL) 576 break; 577 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 578 free(xfer, M_USB); 579 } 580 581 /* XXX free other data structures XXX */ 582 583 return (rv); 584 } 585 #endif 586 587 usbd_status 588 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 589 { 590 struct uhci_softc *sc = (struct uhci_softc *)bus; 591 u_int32_t n; 592 593 /* 594 * XXX 595 * Since we are allocating a buffer we can assume that we will 596 * need TDs for it. Since we don't want to allocate those from 597 * an interrupt context, we allocate them here and free them again. 598 * This is no guarantee that we'll get the TDs next time... 599 */ 600 n = size / 8; 601 if (n > 16) { 602 u_int32_t i; 603 uhci_soft_td_t **stds; 604 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 605 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 606 M_WAITOK|M_ZERO); 607 for(i=0; i < n; i++) 608 stds[i] = uhci_alloc_std(sc); 609 for(i=0; i < n; i++) 610 if (stds[i] != NULL) 611 uhci_free_std(sc, stds[i]); 612 free(stds, M_TEMP); 613 } 614 615 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 616 } 617 618 void 619 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 620 { 621 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 622 } 623 624 usbd_xfer_handle 625 uhci_allocx(struct usbd_bus *bus) 626 { 627 struct uhci_softc *sc = (struct uhci_softc *)bus; 628 usbd_xfer_handle xfer; 629 630 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 631 if (xfer != NULL) { 632 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 633 #ifdef DIAGNOSTIC 634 if (xfer->busy_free != XFER_FREE) { 635 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 636 xfer->busy_free); 637 } 638 #endif 639 } else { 640 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 641 } 642 if (xfer != NULL) { 643 memset(xfer, 0, sizeof (struct uhci_xfer)); 644 UXFER(xfer)->iinfo.sc = sc; 645 #ifdef DIAGNOSTIC 646 UXFER(xfer)->iinfo.isdone = 1; 647 xfer->busy_free = XFER_BUSY; 648 #endif 649 } 650 return (xfer); 651 } 652 653 void 654 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 655 { 656 struct uhci_softc *sc = (struct uhci_softc *)bus; 657 658 #ifdef DIAGNOSTIC 659 if (xfer->busy_free != XFER_BUSY) { 660 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 661 xfer->busy_free); 662 return; 663 } 664 xfer->busy_free = XFER_FREE; 665 if (!UXFER(xfer)->iinfo.isdone) { 666 printf("uhci_freex: !isdone\n"); 667 return; 668 } 669 #endif 670 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 671 } 672 673 /* 674 * Shut down the controller when the system is going down. 675 */ 676 void 677 uhci_shutdown(void *v) 678 { 679 uhci_softc_t *sc = v; 680 681 DPRINTF(("uhci_shutdown: stopping the HC\n")); 682 uhci_run(sc, 0); /* stop the controller */ 683 } 684 685 /* 686 * Handle suspend/resume. 687 * 688 * We need to switch to polling mode here, because this routine is 689 * called from an interrupt context. This is all right since we 690 * are almost suspended anyway. 691 */ 692 void 693 uhci_power(int why, void *v) 694 { 695 uhci_softc_t *sc = v; 696 int cmd; 697 int s; 698 699 s = splhardusb(); 700 cmd = UREAD2(sc, UHCI_CMD); 701 702 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 703 sc, why, sc->sc_suspend, cmd)); 704 705 switch (why) { 706 case PWR_SUSPEND: 707 case PWR_STANDBY: 708 #ifdef UHCI_DEBUG 709 if (uhcidebug > 2) 710 uhci_dumpregs(sc); 711 #endif 712 if (sc->sc_intr_xfer != NULL) 713 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 714 sc->sc_intr_xfer); 715 sc->sc_bus.use_polling++; 716 uhci_run(sc, 0); /* stop the controller */ 717 718 /* save some state if BIOS doesn't */ 719 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 720 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 721 722 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 723 724 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 725 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 726 sc->sc_suspend = why; 727 sc->sc_bus.use_polling--; 728 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 729 break; 730 case PWR_RESUME: 731 #ifdef DIAGNOSTIC 732 if (sc->sc_suspend == PWR_RESUME) 733 printf("uhci_power: weird, resume without suspend.\n"); 734 #endif 735 sc->sc_bus.use_polling++; 736 sc->sc_suspend = why; 737 if (cmd & UHCI_CMD_RS) 738 uhci_run(sc, 0); /* in case BIOS has started it */ 739 740 /* restore saved state */ 741 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 742 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 743 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 744 745 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 746 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 747 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 748 UHCICMD(sc, UHCI_CMD_MAXP); 749 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 750 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 751 uhci_run(sc, 1); /* and start traffic again */ 752 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 753 sc->sc_bus.use_polling--; 754 if (sc->sc_intr_xfer != NULL) 755 usb_callout(sc->sc_poll_handle, sc->sc_ival, 756 uhci_poll_hub, sc->sc_intr_xfer); 757 #ifdef UHCI_DEBUG 758 if (uhcidebug > 2) 759 uhci_dumpregs(sc); 760 #endif 761 break; 762 case PWR_SOFTSUSPEND: 763 case PWR_SOFTSTANDBY: 764 case PWR_SOFTRESUME: 765 break; 766 } 767 splx(s); 768 } 769 770 #ifdef UHCI_DEBUG 771 Static void 772 uhci_dumpregs(uhci_softc_t *sc) 773 { 774 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 775 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 776 USBDEVNAME(sc->sc_bus.bdev), 777 UREAD2(sc, UHCI_CMD), 778 UREAD2(sc, UHCI_STS), 779 UREAD2(sc, UHCI_INTR), 780 UREAD2(sc, UHCI_FRNUM), 781 UREAD4(sc, UHCI_FLBASEADDR), 782 UREAD1(sc, UHCI_SOF), 783 UREAD2(sc, UHCI_PORTSC1), 784 UREAD2(sc, UHCI_PORTSC2))); 785 } 786 787 void 788 uhci_dump_td(uhci_soft_td_t *p) 789 { 790 char sbuf[128], sbuf2[128]; 791 792 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 793 "token=0x%08lx buffer=0x%08lx\n", 794 p, (long)p->physaddr, 795 (long)le32toh(p->td.td_link), 796 (long)le32toh(p->td.td_status), 797 (long)le32toh(p->td.td_token), 798 (long)le32toh(p->td.td_buffer))); 799 800 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 801 sbuf, sizeof(sbuf)); 802 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 803 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 804 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 805 sbuf2, sizeof(sbuf2)); 806 807 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 808 "D=%d,maxlen=%d\n", sbuf, sbuf2, 809 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 810 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 811 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 812 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 813 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 814 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 815 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 816 } 817 818 void 819 uhci_dump_qh(uhci_soft_qh_t *sqh) 820 { 821 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 822 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 823 le32toh(sqh->qh.qh_elink))); 824 } 825 826 827 #if 1 828 void 829 uhci_dump(void) 830 { 831 uhci_dump_all(thesc); 832 } 833 #endif 834 835 void 836 uhci_dump_all(uhci_softc_t *sc) 837 { 838 uhci_dumpregs(sc); 839 printf("intrs=%d\n", sc->sc_bus.no_intrs); 840 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 841 uhci_dump_qh(sc->sc_lctl_start); 842 } 843 844 845 void 846 uhci_dump_qhs(uhci_soft_qh_t *sqh) 847 { 848 uhci_dump_qh(sqh); 849 850 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 851 * Traverses sideways first, then down. 852 * 853 * QH1 854 * QH2 855 * No QH 856 * TD2.1 857 * TD2.2 858 * TD1.1 859 * etc. 860 * 861 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 862 */ 863 864 865 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 866 uhci_dump_qhs(sqh->hlink); 867 else 868 DPRINTF(("No QH\n")); 869 870 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 871 uhci_dump_tds(sqh->elink); 872 else 873 DPRINTF(("No TD\n")); 874 } 875 876 void 877 uhci_dump_tds(uhci_soft_td_t *std) 878 { 879 uhci_soft_td_t *td; 880 881 for(td = std; td != NULL; td = td->link.std) { 882 uhci_dump_td(td); 883 884 /* Check whether the link pointer in this TD marks 885 * the link pointer as end of queue. This avoids 886 * printing the free list in case the queue/TD has 887 * already been moved there (seatbelt). 888 */ 889 if (le32toh(td->td.td_link) & UHCI_PTR_T || 890 le32toh(td->td.td_link) == 0) 891 break; 892 } 893 } 894 895 Static void 896 uhci_dump_ii(uhci_intr_info_t *ii) 897 { 898 usbd_pipe_handle pipe; 899 usb_endpoint_descriptor_t *ed; 900 usbd_device_handle dev; 901 902 #ifdef DIAGNOSTIC 903 #define DONE ii->isdone 904 #else 905 #define DONE 0 906 #endif 907 if (ii == NULL) { 908 printf("ii NULL\n"); 909 return; 910 } 911 if (ii->xfer == NULL) { 912 printf("ii %p: done=%d xfer=NULL\n", 913 ii, DONE); 914 return; 915 } 916 pipe = ii->xfer->pipe; 917 if (pipe == NULL) { 918 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 919 ii, DONE, ii->xfer); 920 return; 921 } 922 if (pipe->endpoint == NULL) { 923 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 924 ii, DONE, ii->xfer, pipe); 925 return; 926 } 927 if (pipe->device == NULL) { 928 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 929 ii, DONE, ii->xfer, pipe); 930 return; 931 } 932 ed = pipe->endpoint->edesc; 933 dev = pipe->device; 934 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", 935 ii, DONE, ii->xfer, dev, 936 UGETW(dev->ddesc.idVendor), 937 UGETW(dev->ddesc.idProduct), 938 dev->address, pipe, 939 ed->bEndpointAddress, ed->bmAttributes); 940 #undef DONE 941 } 942 943 void uhci_dump_iis(struct uhci_softc *sc); 944 void 945 uhci_dump_iis(struct uhci_softc *sc) 946 { 947 uhci_intr_info_t *ii; 948 949 printf("intr_info list:\n"); 950 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 951 uhci_dump_ii(ii); 952 } 953 954 void iidump(void); 955 void iidump(void) { uhci_dump_iis(thesc); } 956 957 #endif 958 959 /* 960 * This routine is executed periodically and simulates interrupts 961 * from the root controller interrupt pipe for port status change. 962 */ 963 void 964 uhci_poll_hub(void *addr) 965 { 966 usbd_xfer_handle xfer = addr; 967 usbd_pipe_handle pipe = xfer->pipe; 968 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 969 int s; 970 u_char *p; 971 972 DPRINTFN(20, ("uhci_poll_hub\n")); 973 974 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 975 976 p = KERNADDR(&xfer->dmabuf, 0); 977 p[0] = 0; 978 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 979 p[0] |= 1<<1; 980 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 981 p[0] |= 1<<2; 982 if (p[0] == 0) 983 /* No change, try again in a while */ 984 return; 985 986 xfer->actlen = 1; 987 xfer->status = USBD_NORMAL_COMPLETION; 988 s = splusb(); 989 xfer->device->bus->intr_context++; 990 usb_transfer_complete(xfer); 991 xfer->device->bus->intr_context--; 992 splx(s); 993 } 994 995 void 996 uhci_root_intr_done(usbd_xfer_handle xfer) 997 { 998 } 999 1000 void 1001 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1002 { 1003 } 1004 1005 /* 1006 * Let the last QH loop back to the high speed control transfer QH. 1007 * This is what intel calls "bandwidth reclamation" and improves 1008 * USB performance a lot for some devices. 1009 * If we are already looping, just count it. 1010 */ 1011 void 1012 uhci_add_loop(uhci_softc_t *sc) { 1013 #ifdef UHCI_DEBUG 1014 if (uhcinoloop) 1015 return; 1016 #endif 1017 if (++sc->sc_loops == 1) { 1018 DPRINTFN(5,("uhci_start_loop: add\n")); 1019 /* Note, we don't loop back the soft pointer. */ 1020 sc->sc_last_qh->qh.qh_hlink = 1021 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1022 } 1023 } 1024 1025 void 1026 uhci_rem_loop(uhci_softc_t *sc) { 1027 #ifdef UHCI_DEBUG 1028 if (uhcinoloop) 1029 return; 1030 #endif 1031 if (--sc->sc_loops == 0) { 1032 DPRINTFN(5,("uhci_end_loop: remove\n")); 1033 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1034 } 1035 } 1036 1037 /* Add high speed control QH, called at splusb(). */ 1038 void 1039 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1040 { 1041 uhci_soft_qh_t *eqh; 1042 1043 SPLUSBCHECK; 1044 1045 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1046 eqh = sc->sc_hctl_end; 1047 sqh->hlink = eqh->hlink; 1048 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1049 eqh->hlink = sqh; 1050 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1051 sc->sc_hctl_end = sqh; 1052 #ifdef UHCI_CTL_LOOP 1053 uhci_add_loop(sc); 1054 #endif 1055 } 1056 1057 /* Remove high speed control QH, called at splusb(). */ 1058 void 1059 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1060 { 1061 uhci_soft_qh_t *pqh; 1062 1063 SPLUSBCHECK; 1064 1065 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1066 #ifdef UHCI_CTL_LOOP 1067 uhci_rem_loop(sc); 1068 #endif 1069 /* 1070 * The T bit should be set in the elink of the QH so that the HC 1071 * doesn't follow the pointer. This condition may fail if the 1072 * the transferred packet was short so that the QH still points 1073 * at the last used TD. 1074 * In this case we set the T bit and wait a little for the HC 1075 * to stop looking at the TD. 1076 */ 1077 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1078 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1079 delay(UHCI_QH_REMOVE_DELAY); 1080 } 1081 1082 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1083 pqh->hlink = sqh->hlink; 1084 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1085 delay(UHCI_QH_REMOVE_DELAY); 1086 if (sc->sc_hctl_end == sqh) 1087 sc->sc_hctl_end = pqh; 1088 } 1089 1090 /* Add low speed control QH, called at splusb(). */ 1091 void 1092 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1093 { 1094 uhci_soft_qh_t *eqh; 1095 1096 SPLUSBCHECK; 1097 1098 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1099 eqh = sc->sc_lctl_end; 1100 sqh->hlink = eqh->hlink; 1101 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1102 eqh->hlink = sqh; 1103 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1104 sc->sc_lctl_end = sqh; 1105 } 1106 1107 /* Remove low speed control QH, called at splusb(). */ 1108 void 1109 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1110 { 1111 uhci_soft_qh_t *pqh; 1112 1113 SPLUSBCHECK; 1114 1115 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1116 /* See comment in uhci_remove_hs_ctrl() */ 1117 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1118 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1119 delay(UHCI_QH_REMOVE_DELAY); 1120 } 1121 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1122 pqh->hlink = sqh->hlink; 1123 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1124 delay(UHCI_QH_REMOVE_DELAY); 1125 if (sc->sc_lctl_end == sqh) 1126 sc->sc_lctl_end = pqh; 1127 } 1128 1129 /* Add bulk QH, called at splusb(). */ 1130 void 1131 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1132 { 1133 uhci_soft_qh_t *eqh; 1134 1135 SPLUSBCHECK; 1136 1137 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1138 eqh = sc->sc_bulk_end; 1139 sqh->hlink = eqh->hlink; 1140 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1141 eqh->hlink = sqh; 1142 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1143 sc->sc_bulk_end = sqh; 1144 uhci_add_loop(sc); 1145 } 1146 1147 /* Remove bulk QH, called at splusb(). */ 1148 void 1149 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1150 { 1151 uhci_soft_qh_t *pqh; 1152 1153 SPLUSBCHECK; 1154 1155 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1156 uhci_rem_loop(sc); 1157 /* See comment in uhci_remove_hs_ctrl() */ 1158 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1159 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1160 delay(UHCI_QH_REMOVE_DELAY); 1161 } 1162 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1163 pqh->hlink = sqh->hlink; 1164 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1165 delay(UHCI_QH_REMOVE_DELAY); 1166 if (sc->sc_bulk_end == sqh) 1167 sc->sc_bulk_end = pqh; 1168 } 1169 1170 Static int uhci_intr1(uhci_softc_t *); 1171 1172 int 1173 uhci_intr(void *arg) 1174 { 1175 uhci_softc_t *sc = arg; 1176 1177 if (sc->sc_dying) 1178 return (0); 1179 1180 DPRINTFN(15,("uhci_intr: real interrupt\n")); 1181 if (sc->sc_bus.use_polling) { 1182 #ifdef DIAGNOSTIC 1183 printf("uhci_intr: ignored interrupt while polling\n"); 1184 #endif 1185 return (0); 1186 } 1187 return (uhci_intr1(sc)); 1188 } 1189 1190 int 1191 uhci_intr1(uhci_softc_t *sc) 1192 { 1193 int status; 1194 int ack; 1195 1196 #ifdef UHCI_DEBUG 1197 if (uhcidebug > 15) { 1198 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1199 uhci_dumpregs(sc); 1200 } 1201 #endif 1202 1203 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1204 if (status == 0) /* The interrupt was not for us. */ 1205 return (0); 1206 1207 if (sc->sc_suspend != PWR_RESUME) { 1208 printf("%s: interrupt while not operating ignored\n", 1209 USBDEVNAME(sc->sc_bus.bdev)); 1210 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1211 return (0); 1212 } 1213 1214 ack = 0; 1215 if (status & UHCI_STS_USBINT) 1216 ack |= UHCI_STS_USBINT; 1217 if (status & UHCI_STS_USBEI) 1218 ack |= UHCI_STS_USBEI; 1219 if (status & UHCI_STS_RD) { 1220 ack |= UHCI_STS_RD; 1221 #ifdef UHCI_DEBUG 1222 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1223 #endif 1224 } 1225 if (status & UHCI_STS_HSE) { 1226 ack |= UHCI_STS_HSE; 1227 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1228 } 1229 if (status & UHCI_STS_HCPE) { 1230 ack |= UHCI_STS_HCPE; 1231 printf("%s: host controller process error\n", 1232 USBDEVNAME(sc->sc_bus.bdev)); 1233 } 1234 if (status & UHCI_STS_HCH) { 1235 /* no acknowledge needed */ 1236 if (!sc->sc_dying) { 1237 printf("%s: host controller halted\n", 1238 USBDEVNAME(sc->sc_bus.bdev)); 1239 #ifdef UHCI_DEBUG 1240 uhci_dump_all(sc); 1241 #endif 1242 } 1243 sc->sc_dying = 1; 1244 } 1245 1246 if (!ack) 1247 return (0); /* nothing to acknowledge */ 1248 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1249 1250 sc->sc_bus.no_intrs++; 1251 usb_schedsoftintr(&sc->sc_bus); 1252 1253 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1254 1255 return (1); 1256 } 1257 1258 void 1259 uhci_softintr(void *v) 1260 { 1261 uhci_softc_t *sc = v; 1262 uhci_intr_info_t *ii; 1263 1264 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1265 sc->sc_bus.intr_context)); 1266 1267 sc->sc_bus.intr_context++; 1268 1269 /* 1270 * Interrupts on UHCI really suck. When the host controller 1271 * interrupts because a transfer is completed there is no 1272 * way of knowing which transfer it was. You can scan down 1273 * the TDs and QHs of the previous frame to limit the search, 1274 * but that assumes that the interrupt was not delayed by more 1275 * than 1 ms, which may not always be true (e.g. after debug 1276 * output on a slow console). 1277 * We scan all interrupt descriptors to see if any have 1278 * completed. 1279 */ 1280 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 1281 uhci_check_intr(sc, ii); 1282 1283 #ifdef USB_USE_SOFTINTR 1284 if (sc->sc_softwake) { 1285 sc->sc_softwake = 0; 1286 wakeup(&sc->sc_softwake); 1287 } 1288 #endif /* USB_USE_SOFTINTR */ 1289 1290 sc->sc_bus.intr_context--; 1291 } 1292 1293 /* Check for an interrupt. */ 1294 void 1295 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1296 { 1297 uhci_soft_td_t *std, *lstd; 1298 u_int32_t status; 1299 1300 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1301 #ifdef DIAGNOSTIC 1302 if (ii == NULL) { 1303 printf("uhci_check_intr: no ii? %p\n", ii); 1304 return; 1305 } 1306 #endif 1307 if (ii->xfer->status == USBD_CANCELLED || 1308 ii->xfer->status == USBD_TIMEOUT) { 1309 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1310 return; 1311 } 1312 1313 if (ii->stdstart == NULL) 1314 return; 1315 lstd = ii->stdend; 1316 #ifdef DIAGNOSTIC 1317 if (lstd == NULL) { 1318 printf("uhci_check_intr: std==0\n"); 1319 return; 1320 } 1321 #endif 1322 /* 1323 * If the last TD is still active we need to check whether there 1324 * is a an error somewhere in the middle, or whether there was a 1325 * short packet (SPD and not ACTIVE). 1326 */ 1327 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1328 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1329 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1330 status = le32toh(std->td.td_status); 1331 /* If there's an active TD the xfer isn't done. */ 1332 if (status & UHCI_TD_ACTIVE) 1333 break; 1334 /* Any kind of error makes the xfer done. */ 1335 if (status & UHCI_TD_STALLED) 1336 goto done; 1337 /* We want short packets, and it is short: it's done */ 1338 if ((status & UHCI_TD_SPD) && 1339 UHCI_TD_GET_ACTLEN(status) < 1340 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1341 goto done; 1342 } 1343 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1344 ii, ii->stdstart)); 1345 return; 1346 } 1347 done: 1348 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1349 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1350 uhci_idone(ii); 1351 } 1352 1353 /* Called at splusb() */ 1354 void 1355 uhci_idone(uhci_intr_info_t *ii) 1356 { 1357 usbd_xfer_handle xfer = ii->xfer; 1358 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1359 uhci_soft_td_t *std; 1360 u_int32_t status = 0, nstatus; 1361 int actlen; 1362 1363 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1364 #ifdef DIAGNOSTIC 1365 { 1366 int s = splhigh(); 1367 if (ii->isdone) { 1368 splx(s); 1369 #ifdef UHCI_DEBUG 1370 printf("uhci_idone: ii is done!\n "); 1371 uhci_dump_ii(ii); 1372 #else 1373 printf("uhci_idone: ii=%p is done!\n", ii); 1374 #endif 1375 return; 1376 } 1377 ii->isdone = 1; 1378 splx(s); 1379 } 1380 #endif 1381 1382 if (xfer->nframes != 0) { 1383 /* Isoc transfer, do things differently. */ 1384 uhci_soft_td_t **stds = upipe->u.iso.stds; 1385 int i, n, nframes, len; 1386 1387 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1388 1389 nframes = xfer->nframes; 1390 actlen = 0; 1391 n = UXFER(xfer)->curframe; 1392 for (i = 0; i < nframes; i++) { 1393 std = stds[n]; 1394 #ifdef UHCI_DEBUG 1395 if (uhcidebug > 5) { 1396 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1397 uhci_dump_td(std); 1398 } 1399 #endif 1400 if (++n >= UHCI_VFRAMELIST_COUNT) 1401 n = 0; 1402 status = le32toh(std->td.td_status); 1403 len = UHCI_TD_GET_ACTLEN(status); 1404 xfer->frlengths[i] = len; 1405 actlen += len; 1406 } 1407 upipe->u.iso.inuse -= nframes; 1408 xfer->actlen = actlen; 1409 xfer->status = USBD_NORMAL_COMPLETION; 1410 goto end; 1411 } 1412 1413 #ifdef UHCI_DEBUG 1414 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1415 ii, xfer, upipe)); 1416 if (uhcidebug > 10) 1417 uhci_dump_tds(ii->stdstart); 1418 #endif 1419 1420 /* The transfer is done, compute actual length and status. */ 1421 actlen = 0; 1422 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1423 nstatus = le32toh(std->td.td_status); 1424 if (nstatus & UHCI_TD_ACTIVE) 1425 break; 1426 1427 status = nstatus; 1428 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1429 UHCI_TD_PID_SETUP) 1430 actlen += UHCI_TD_GET_ACTLEN(status); 1431 } 1432 /* If there are left over TDs we need to update the toggle. */ 1433 if (std != NULL) 1434 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1435 1436 status &= UHCI_TD_ERROR; 1437 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1438 actlen, status)); 1439 xfer->actlen = actlen; 1440 if (status != 0) { 1441 #ifdef UHCI_DEBUG 1442 char sbuf[128]; 1443 1444 bitmask_snprintf((u_int32_t)status, 1445 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1446 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1447 sbuf, sizeof(sbuf)); 1448 1449 DPRINTFN((status == UHCI_TD_STALLED)*10, 1450 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1451 "status 0x%s\n", 1452 xfer->pipe->device->address, 1453 xfer->pipe->endpoint->edesc->bEndpointAddress, 1454 sbuf)); 1455 #endif 1456 1457 if (status == UHCI_TD_STALLED) 1458 xfer->status = USBD_STALLED; 1459 else 1460 xfer->status = USBD_IOERROR; /* more info XXX */ 1461 } else { 1462 xfer->status = USBD_NORMAL_COMPLETION; 1463 } 1464 1465 end: 1466 usb_transfer_complete(xfer); 1467 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1468 } 1469 1470 /* 1471 * Called when a request does not complete. 1472 */ 1473 void 1474 uhci_timeout(void *addr) 1475 { 1476 uhci_intr_info_t *ii = addr; 1477 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1478 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1479 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1480 1481 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1482 1483 if (sc->sc_dying) { 1484 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1485 return; 1486 } 1487 1488 /* Execute the abort in a process context. */ 1489 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1490 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1491 } 1492 1493 void 1494 uhci_timeout_task(void *addr) 1495 { 1496 usbd_xfer_handle xfer = addr; 1497 int s; 1498 1499 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1500 1501 s = splusb(); 1502 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1503 splx(s); 1504 } 1505 1506 /* 1507 * Wait here until controller claims to have an interrupt. 1508 * Then call uhci_intr and return. Use timeout to avoid waiting 1509 * too long. 1510 * Only used during boot when interrupts are not enabled yet. 1511 */ 1512 void 1513 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1514 { 1515 int timo = xfer->timeout; 1516 uhci_intr_info_t *ii; 1517 1518 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1519 1520 xfer->status = USBD_IN_PROGRESS; 1521 for (; timo >= 0; timo--) { 1522 usb_delay_ms(&sc->sc_bus, 1); 1523 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1524 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1525 uhci_intr1(sc); 1526 if (xfer->status != USBD_IN_PROGRESS) 1527 return; 1528 } 1529 } 1530 1531 /* Timeout */ 1532 DPRINTF(("uhci_waitintr: timeout\n")); 1533 for (ii = LIST_FIRST(&sc->sc_intrhead); 1534 ii != NULL && ii->xfer != xfer; 1535 ii = LIST_NEXT(ii, list)) 1536 ; 1537 #ifdef DIAGNOSTIC 1538 if (ii == NULL) 1539 panic("uhci_waitintr: lost intr_info"); 1540 #endif 1541 uhci_idone(ii); 1542 } 1543 1544 void 1545 uhci_poll(struct usbd_bus *bus) 1546 { 1547 uhci_softc_t *sc = (uhci_softc_t *)bus; 1548 1549 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1550 uhci_intr1(sc); 1551 } 1552 1553 void 1554 uhci_reset(uhci_softc_t *sc) 1555 { 1556 int n; 1557 1558 UHCICMD(sc, UHCI_CMD_HCRESET); 1559 /* The reset bit goes low when the controller is done. */ 1560 for (n = 0; n < UHCI_RESET_TIMEOUT && 1561 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1562 usb_delay_ms(&sc->sc_bus, 1); 1563 if (n >= UHCI_RESET_TIMEOUT) 1564 printf("%s: controller did not reset\n", 1565 USBDEVNAME(sc->sc_bus.bdev)); 1566 } 1567 1568 usbd_status 1569 uhci_run(uhci_softc_t *sc, int run) 1570 { 1571 int s, n, running; 1572 u_int16_t cmd; 1573 1574 run = run != 0; 1575 s = splhardusb(); 1576 DPRINTF(("uhci_run: setting run=%d\n", run)); 1577 cmd = UREAD2(sc, UHCI_CMD); 1578 if (run) 1579 cmd |= UHCI_CMD_RS; 1580 else 1581 cmd &= ~UHCI_CMD_RS; 1582 UHCICMD(sc, cmd); 1583 for(n = 0; n < 10; n++) { 1584 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1585 /* return when we've entered the state we want */ 1586 if (run == running) { 1587 splx(s); 1588 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1589 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1590 return (USBD_NORMAL_COMPLETION); 1591 } 1592 usb_delay_ms(&sc->sc_bus, 1); 1593 } 1594 splx(s); 1595 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1596 run ? "start" : "stop"); 1597 return (USBD_IOERROR); 1598 } 1599 1600 /* 1601 * Memory management routines. 1602 * uhci_alloc_std allocates TDs 1603 * uhci_alloc_sqh allocates QHs 1604 * These two routines do their own free list management, 1605 * partly for speed, partly because allocating DMAable memory 1606 * has page size granularaity so much memory would be wasted if 1607 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1608 */ 1609 1610 uhci_soft_td_t * 1611 uhci_alloc_std(uhci_softc_t *sc) 1612 { 1613 uhci_soft_td_t *std; 1614 usbd_status err; 1615 int i, offs; 1616 usb_dma_t dma; 1617 1618 if (sc->sc_freetds == NULL) { 1619 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1620 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1621 UHCI_TD_ALIGN, &dma); 1622 if (err) 1623 return (0); 1624 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1625 offs = i * UHCI_STD_SIZE; 1626 std = KERNADDR(&dma, offs); 1627 std->physaddr = DMAADDR(&dma, offs); 1628 std->link.std = sc->sc_freetds; 1629 sc->sc_freetds = std; 1630 } 1631 } 1632 std = sc->sc_freetds; 1633 sc->sc_freetds = std->link.std; 1634 memset(&std->td, 0, sizeof(uhci_td_t)); 1635 return std; 1636 } 1637 1638 void 1639 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1640 { 1641 #ifdef DIAGNOSTIC 1642 #define TD_IS_FREE 0x12345678 1643 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1644 printf("uhci_free_std: freeing free TD %p\n", std); 1645 return; 1646 } 1647 std->td.td_token = htole32(TD_IS_FREE); 1648 #endif 1649 std->link.std = sc->sc_freetds; 1650 sc->sc_freetds = std; 1651 } 1652 1653 uhci_soft_qh_t * 1654 uhci_alloc_sqh(uhci_softc_t *sc) 1655 { 1656 uhci_soft_qh_t *sqh; 1657 usbd_status err; 1658 int i, offs; 1659 usb_dma_t dma; 1660 1661 if (sc->sc_freeqhs == NULL) { 1662 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1663 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1664 UHCI_QH_ALIGN, &dma); 1665 if (err) 1666 return (0); 1667 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1668 offs = i * UHCI_SQH_SIZE; 1669 sqh = KERNADDR(&dma, offs); 1670 sqh->physaddr = DMAADDR(&dma, offs); 1671 sqh->hlink = sc->sc_freeqhs; 1672 sc->sc_freeqhs = sqh; 1673 } 1674 } 1675 sqh = sc->sc_freeqhs; 1676 sc->sc_freeqhs = sqh->hlink; 1677 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1678 return (sqh); 1679 } 1680 1681 void 1682 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1683 { 1684 sqh->hlink = sc->sc_freeqhs; 1685 sc->sc_freeqhs = sqh; 1686 } 1687 1688 void 1689 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1690 uhci_soft_td_t *stdend) 1691 { 1692 uhci_soft_td_t *p; 1693 1694 for (; std != stdend; std = p) { 1695 p = std->link.std; 1696 uhci_free_std(sc, std); 1697 } 1698 } 1699 1700 usbd_status 1701 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1702 int rd, u_int16_t flags, usb_dma_t *dma, 1703 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1704 { 1705 uhci_soft_td_t *p, *lastp; 1706 uhci_physaddr_t lastlink; 1707 int i, ntd, l, tog, maxp; 1708 u_int32_t status; 1709 int addr = upipe->pipe.device->address; 1710 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1711 1712 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1713 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1714 upipe->pipe.device->speed, flags)); 1715 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1716 if (maxp == 0) { 1717 printf("uhci_alloc_std_chain: maxp=0\n"); 1718 return (USBD_INVAL); 1719 } 1720 ntd = (len + maxp - 1) / maxp; 1721 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1722 ntd++; 1723 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1724 if (ntd == 0) { 1725 *sp = *ep = 0; 1726 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1727 return (USBD_NORMAL_COMPLETION); 1728 } 1729 tog = upipe->nexttoggle; 1730 if (ntd % 2 == 0) 1731 tog ^= 1; 1732 upipe->nexttoggle = tog ^ 1; 1733 lastp = NULL; 1734 lastlink = UHCI_PTR_T; 1735 ntd--; 1736 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1737 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1738 status |= UHCI_TD_LS; 1739 if (flags & USBD_SHORT_XFER_OK) 1740 status |= UHCI_TD_SPD; 1741 for (i = ntd; i >= 0; i--) { 1742 p = uhci_alloc_std(sc); 1743 if (p == NULL) { 1744 uhci_free_std_chain(sc, lastp, NULL); 1745 return (USBD_NOMEM); 1746 } 1747 p->link.std = lastp; 1748 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1749 lastp = p; 1750 lastlink = p->physaddr; 1751 p->td.td_status = htole32(status); 1752 if (i == ntd) { 1753 /* last TD */ 1754 l = len % maxp; 1755 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1756 l = maxp; 1757 *ep = p; 1758 } else 1759 l = maxp; 1760 p->td.td_token = 1761 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1762 UHCI_TD_OUT(l, endpt, addr, tog)); 1763 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1764 tog ^= 1; 1765 } 1766 *sp = lastp; 1767 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1768 upipe->nexttoggle)); 1769 return (USBD_NORMAL_COMPLETION); 1770 } 1771 1772 void 1773 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1774 { 1775 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1776 upipe->nexttoggle = 0; 1777 } 1778 1779 void 1780 uhci_noop(usbd_pipe_handle pipe) 1781 { 1782 } 1783 1784 usbd_status 1785 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1786 { 1787 usbd_status err; 1788 1789 /* Insert last in queue. */ 1790 err = usb_insert_transfer(xfer); 1791 if (err) 1792 return (err); 1793 1794 /* 1795 * Pipe isn't running (otherwise err would be USBD_INPROG), 1796 * so start it first. 1797 */ 1798 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1799 } 1800 1801 usbd_status 1802 uhci_device_bulk_start(usbd_xfer_handle xfer) 1803 { 1804 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1805 usbd_device_handle dev = upipe->pipe.device; 1806 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1807 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1808 uhci_soft_td_t *data, *dataend; 1809 uhci_soft_qh_t *sqh; 1810 usbd_status err; 1811 int len, isread, endpt; 1812 int s; 1813 1814 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1815 xfer, xfer->length, xfer->flags, ii)); 1816 1817 if (sc->sc_dying) 1818 return (USBD_IOERROR); 1819 1820 #ifdef DIAGNOSTIC 1821 if (xfer->rqflags & URQ_REQUEST) 1822 panic("uhci_device_bulk_transfer: a request"); 1823 #endif 1824 1825 len = xfer->length; 1826 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1827 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1828 sqh = upipe->u.bulk.sqh; 1829 1830 upipe->u.bulk.isread = isread; 1831 upipe->u.bulk.length = len; 1832 1833 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1834 &xfer->dmabuf, &data, &dataend); 1835 if (err) 1836 return (err); 1837 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1838 1839 #ifdef UHCI_DEBUG 1840 if (uhcidebug > 8) { 1841 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1842 uhci_dump_tds(data); 1843 } 1844 #endif 1845 1846 /* Set up interrupt info. */ 1847 ii->xfer = xfer; 1848 ii->stdstart = data; 1849 ii->stdend = dataend; 1850 #ifdef DIAGNOSTIC 1851 if (!ii->isdone) { 1852 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1853 } 1854 ii->isdone = 0; 1855 #endif 1856 1857 sqh->elink = data; 1858 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1859 1860 s = splusb(); 1861 uhci_add_bulk(sc, sqh); 1862 uhci_add_intr_info(sc, ii); 1863 1864 if (xfer->timeout && !sc->sc_bus.use_polling) { 1865 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1866 uhci_timeout, ii); 1867 } 1868 xfer->status = USBD_IN_PROGRESS; 1869 splx(s); 1870 1871 #ifdef UHCI_DEBUG 1872 if (uhcidebug > 10) { 1873 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1874 uhci_dump_tds(data); 1875 } 1876 #endif 1877 1878 if (sc->sc_bus.use_polling) 1879 uhci_waitintr(sc, xfer); 1880 1881 return (USBD_IN_PROGRESS); 1882 } 1883 1884 /* Abort a device bulk request. */ 1885 void 1886 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1887 { 1888 DPRINTF(("uhci_device_bulk_abort:\n")); 1889 uhci_abort_xfer(xfer, USBD_CANCELLED); 1890 } 1891 1892 /* 1893 * Abort a device request. 1894 * If this routine is called at splusb() it guarantees that the request 1895 * will be removed from the hardware scheduling and that the callback 1896 * for it will be called with USBD_CANCELLED status. 1897 * It's impossible to guarantee that the requested transfer will not 1898 * have happened since the hardware runs concurrently. 1899 * If the transaction has already happened we rely on the ordinary 1900 * interrupt processing to process it. 1901 */ 1902 void 1903 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1904 { 1905 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1906 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1907 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1908 uhci_soft_td_t *std; 1909 int s; 1910 1911 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1912 1913 if (sc->sc_dying) { 1914 /* If we're dying, just do the software part. */ 1915 s = splusb(); 1916 xfer->status = status; /* make software ignore it */ 1917 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1918 usb_transfer_complete(xfer); 1919 splx(s); 1920 } 1921 1922 if (xfer->device->bus->intr_context || !curproc) 1923 panic("uhci_abort_xfer: not in process context"); 1924 1925 /* 1926 * Step 1: Make interrupt routine and hardware ignore xfer. 1927 */ 1928 s = splusb(); 1929 xfer->status = status; /* make software ignore it */ 1930 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1931 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1932 for (std = ii->stdstart; std != NULL; std = std->link.std) 1933 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1934 splx(s); 1935 1936 /* 1937 * Step 2: Wait until we know hardware has finished any possible 1938 * use of the xfer. Also make sure the soft interrupt routine 1939 * has run. 1940 */ 1941 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1942 s = splusb(); 1943 #ifdef USB_USE_SOFTINTR 1944 sc->sc_softwake = 1; 1945 #endif /* USB_USE_SOFTINTR */ 1946 usb_schedsoftintr(&sc->sc_bus); 1947 #ifdef USB_USE_SOFTINTR 1948 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1949 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1950 #endif /* USB_USE_SOFTINTR */ 1951 splx(s); 1952 1953 /* 1954 * Step 3: Execute callback. 1955 */ 1956 xfer->hcpriv = ii; 1957 1958 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1959 s = splusb(); 1960 #ifdef DIAGNOSTIC 1961 ii->isdone = 1; 1962 #endif 1963 usb_transfer_complete(xfer); 1964 splx(s); 1965 } 1966 1967 /* Close a device bulk pipe. */ 1968 void 1969 uhci_device_bulk_close(usbd_pipe_handle pipe) 1970 { 1971 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1972 usbd_device_handle dev = upipe->pipe.device; 1973 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1974 1975 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1976 } 1977 1978 usbd_status 1979 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 1980 { 1981 usbd_status err; 1982 1983 /* Insert last in queue. */ 1984 err = usb_insert_transfer(xfer); 1985 if (err) 1986 return (err); 1987 1988 /* 1989 * Pipe isn't running (otherwise err would be USBD_INPROG), 1990 * so start it first. 1991 */ 1992 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1993 } 1994 1995 usbd_status 1996 uhci_device_ctrl_start(usbd_xfer_handle xfer) 1997 { 1998 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1999 usbd_status err; 2000 2001 if (sc->sc_dying) 2002 return (USBD_IOERROR); 2003 2004 #ifdef DIAGNOSTIC 2005 if (!(xfer->rqflags & URQ_REQUEST)) 2006 panic("uhci_device_ctrl_transfer: not a request"); 2007 #endif 2008 2009 err = uhci_device_request(xfer); 2010 if (err) 2011 return (err); 2012 2013 if (sc->sc_bus.use_polling) 2014 uhci_waitintr(sc, xfer); 2015 return (USBD_IN_PROGRESS); 2016 } 2017 2018 usbd_status 2019 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2020 { 2021 usbd_status err; 2022 2023 /* Insert last in queue. */ 2024 err = usb_insert_transfer(xfer); 2025 if (err) 2026 return (err); 2027 2028 /* 2029 * Pipe isn't running (otherwise err would be USBD_INPROG), 2030 * so start it first. 2031 */ 2032 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2033 } 2034 2035 usbd_status 2036 uhci_device_intr_start(usbd_xfer_handle xfer) 2037 { 2038 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2039 usbd_device_handle dev = upipe->pipe.device; 2040 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2041 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2042 uhci_soft_td_t *data, *dataend; 2043 uhci_soft_qh_t *sqh; 2044 usbd_status err; 2045 int i, s; 2046 2047 if (sc->sc_dying) 2048 return (USBD_IOERROR); 2049 2050 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2051 xfer, xfer->length, xfer->flags)); 2052 2053 #ifdef DIAGNOSTIC 2054 if (xfer->rqflags & URQ_REQUEST) 2055 panic("uhci_device_intr_transfer: a request"); 2056 #endif 2057 2058 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2059 &xfer->dmabuf, &data, &dataend); 2060 if (err) 2061 return (err); 2062 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2063 2064 #ifdef UHCI_DEBUG 2065 if (uhcidebug > 10) { 2066 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2067 uhci_dump_tds(data); 2068 uhci_dump_qh(upipe->u.intr.qhs[0]); 2069 } 2070 #endif 2071 2072 s = splusb(); 2073 /* Set up interrupt info. */ 2074 ii->xfer = xfer; 2075 ii->stdstart = data; 2076 ii->stdend = dataend; 2077 #ifdef DIAGNOSTIC 2078 if (!ii->isdone) { 2079 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2080 } 2081 ii->isdone = 0; 2082 #endif 2083 2084 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2085 upipe->u.intr.qhs[0])); 2086 for (i = 0; i < upipe->u.intr.npoll; i++) { 2087 sqh = upipe->u.intr.qhs[i]; 2088 sqh->elink = data; 2089 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2090 } 2091 uhci_add_intr_info(sc, ii); 2092 xfer->status = USBD_IN_PROGRESS; 2093 splx(s); 2094 2095 #ifdef UHCI_DEBUG 2096 if (uhcidebug > 10) { 2097 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2098 uhci_dump_tds(data); 2099 uhci_dump_qh(upipe->u.intr.qhs[0]); 2100 } 2101 #endif 2102 2103 return (USBD_IN_PROGRESS); 2104 } 2105 2106 /* Abort a device control request. */ 2107 void 2108 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2109 { 2110 DPRINTF(("uhci_device_ctrl_abort:\n")); 2111 uhci_abort_xfer(xfer, USBD_CANCELLED); 2112 } 2113 2114 /* Close a device control pipe. */ 2115 void 2116 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2117 { 2118 } 2119 2120 /* Abort a device interrupt request. */ 2121 void 2122 uhci_device_intr_abort(usbd_xfer_handle xfer) 2123 { 2124 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2125 if (xfer->pipe->intrxfer == xfer) { 2126 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2127 xfer->pipe->intrxfer = NULL; 2128 } 2129 uhci_abort_xfer(xfer, USBD_CANCELLED); 2130 } 2131 2132 /* Close a device interrupt pipe. */ 2133 void 2134 uhci_device_intr_close(usbd_pipe_handle pipe) 2135 { 2136 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2137 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2138 int i, npoll; 2139 int s; 2140 2141 /* Unlink descriptors from controller data structures. */ 2142 npoll = upipe->u.intr.npoll; 2143 s = splusb(); 2144 for (i = 0; i < npoll; i++) 2145 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2146 splx(s); 2147 2148 /* 2149 * We now have to wait for any activity on the physical 2150 * descriptors to stop. 2151 */ 2152 usb_delay_ms(&sc->sc_bus, 2); 2153 2154 for(i = 0; i < npoll; i++) 2155 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2156 free(upipe->u.intr.qhs, M_USBHC); 2157 2158 /* XXX free other resources */ 2159 } 2160 2161 usbd_status 2162 uhci_device_request(usbd_xfer_handle xfer) 2163 { 2164 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2165 usb_device_request_t *req = &xfer->request; 2166 usbd_device_handle dev = upipe->pipe.device; 2167 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2168 int addr = dev->address; 2169 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2170 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2171 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2172 uhci_soft_qh_t *sqh; 2173 int len; 2174 u_int32_t ls; 2175 usbd_status err; 2176 int isread; 2177 int s; 2178 2179 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2180 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2181 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2182 UGETW(req->wIndex), UGETW(req->wLength), 2183 addr, endpt)); 2184 2185 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2186 isread = req->bmRequestType & UT_READ; 2187 len = UGETW(req->wLength); 2188 2189 setup = upipe->u.ctl.setup; 2190 stat = upipe->u.ctl.stat; 2191 sqh = upipe->u.ctl.sqh; 2192 2193 /* Set up data transaction */ 2194 if (len != 0) { 2195 upipe->nexttoggle = 1; 2196 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2197 &xfer->dmabuf, &data, &dataend); 2198 if (err) 2199 return (err); 2200 next = data; 2201 dataend->link.std = stat; 2202 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2203 } else { 2204 next = stat; 2205 } 2206 upipe->u.ctl.length = len; 2207 2208 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2209 2210 setup->link.std = next; 2211 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2212 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2213 UHCI_TD_ACTIVE); 2214 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2215 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2216 2217 stat->link.std = NULL; 2218 stat->td.td_link = htole32(UHCI_PTR_T); 2219 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2220 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2221 stat->td.td_token = 2222 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2223 UHCI_TD_IN (0, endpt, addr, 1)); 2224 stat->td.td_buffer = htole32(0); 2225 2226 #ifdef UHCI_DEBUG 2227 if (uhcidebug > 10) { 2228 DPRINTF(("uhci_device_request: before transfer\n")); 2229 uhci_dump_tds(setup); 2230 } 2231 #endif 2232 2233 /* Set up interrupt info. */ 2234 ii->xfer = xfer; 2235 ii->stdstart = setup; 2236 ii->stdend = stat; 2237 #ifdef DIAGNOSTIC 2238 if (!ii->isdone) { 2239 printf("uhci_device_request: not done, ii=%p\n", ii); 2240 } 2241 ii->isdone = 0; 2242 #endif 2243 2244 sqh->elink = setup; 2245 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2246 2247 s = splusb(); 2248 if (dev->speed == USB_SPEED_LOW) 2249 uhci_add_ls_ctrl(sc, sqh); 2250 else 2251 uhci_add_hs_ctrl(sc, sqh); 2252 uhci_add_intr_info(sc, ii); 2253 #ifdef UHCI_DEBUG 2254 if (uhcidebug > 12) { 2255 uhci_soft_td_t *std; 2256 uhci_soft_qh_t *xqh; 2257 uhci_soft_qh_t *sxqh; 2258 int maxqh = 0; 2259 uhci_physaddr_t link; 2260 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2261 for (std = sc->sc_vframes[0].htd, link = 0; 2262 (link & UHCI_PTR_QH) == 0; 2263 std = std->link.std) { 2264 link = le32toh(std->td.td_link); 2265 uhci_dump_td(std); 2266 } 2267 sxqh = (uhci_soft_qh_t *)std; 2268 uhci_dump_qh(sxqh); 2269 for (xqh = sxqh; 2270 xqh != NULL; 2271 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2272 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2273 uhci_dump_qh(xqh); 2274 } 2275 DPRINTF(("Enqueued QH:\n")); 2276 uhci_dump_qh(sqh); 2277 uhci_dump_tds(sqh->elink); 2278 } 2279 #endif 2280 if (xfer->timeout && !sc->sc_bus.use_polling) { 2281 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2282 uhci_timeout, ii); 2283 } 2284 xfer->status = USBD_IN_PROGRESS; 2285 splx(s); 2286 2287 return (USBD_NORMAL_COMPLETION); 2288 } 2289 2290 usbd_status 2291 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2292 { 2293 usbd_status err; 2294 2295 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2296 2297 /* Put it on our queue, */ 2298 err = usb_insert_transfer(xfer); 2299 2300 /* bail out on error, */ 2301 if (err && err != USBD_IN_PROGRESS) 2302 return (err); 2303 2304 /* XXX should check inuse here */ 2305 2306 /* insert into schedule, */ 2307 uhci_device_isoc_enter(xfer); 2308 2309 /* and start if the pipe wasn't running */ 2310 if (!err) 2311 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2312 2313 return (err); 2314 } 2315 2316 void 2317 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2318 { 2319 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2320 usbd_device_handle dev = upipe->pipe.device; 2321 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2322 struct iso *iso = &upipe->u.iso; 2323 uhci_soft_td_t *std; 2324 u_int32_t buf, len, status; 2325 int s, i, next, nframes; 2326 2327 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2328 "nframes=%d\n", 2329 iso->inuse, iso->next, xfer, xfer->nframes)); 2330 2331 if (sc->sc_dying) 2332 return; 2333 2334 if (xfer->status == USBD_IN_PROGRESS) { 2335 /* This request has already been entered into the frame list */ 2336 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2337 /* XXX */ 2338 } 2339 2340 #ifdef DIAGNOSTIC 2341 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2342 printf("uhci_device_isoc_enter: overflow!\n"); 2343 #endif 2344 2345 next = iso->next; 2346 if (next == -1) { 2347 /* Not in use yet, schedule it a few frames ahead. */ 2348 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2349 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2350 } 2351 2352 xfer->status = USBD_IN_PROGRESS; 2353 UXFER(xfer)->curframe = next; 2354 2355 buf = DMAADDR(&xfer->dmabuf, 0); 2356 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2357 UHCI_TD_ACTIVE | 2358 UHCI_TD_IOS); 2359 nframes = xfer->nframes; 2360 s = splusb(); 2361 for (i = 0; i < nframes; i++) { 2362 std = iso->stds[next]; 2363 if (++next >= UHCI_VFRAMELIST_COUNT) 2364 next = 0; 2365 len = xfer->frlengths[i]; 2366 std->td.td_buffer = htole32(buf); 2367 if (i == nframes - 1) 2368 status |= UHCI_TD_IOC; 2369 std->td.td_status = htole32(status); 2370 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2371 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2372 #ifdef UHCI_DEBUG 2373 if (uhcidebug > 5) { 2374 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2375 uhci_dump_td(std); 2376 } 2377 #endif 2378 buf += len; 2379 } 2380 iso->next = next; 2381 iso->inuse += xfer->nframes; 2382 2383 splx(s); 2384 } 2385 2386 usbd_status 2387 uhci_device_isoc_start(usbd_xfer_handle xfer) 2388 { 2389 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2390 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2391 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2392 uhci_soft_td_t *end; 2393 int s, i; 2394 2395 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2396 2397 if (sc->sc_dying) 2398 return (USBD_IOERROR); 2399 2400 #ifdef DIAGNOSTIC 2401 if (xfer->status != USBD_IN_PROGRESS) 2402 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2403 #endif 2404 2405 /* Find the last TD */ 2406 i = UXFER(xfer)->curframe + xfer->nframes; 2407 if (i >= UHCI_VFRAMELIST_COUNT) 2408 i -= UHCI_VFRAMELIST_COUNT; 2409 end = upipe->u.iso.stds[i]; 2410 2411 #ifdef DIAGNOSTIC 2412 if (end == NULL) { 2413 printf("uhci_device_isoc_start: end == NULL\n"); 2414 return (USBD_INVAL); 2415 } 2416 #endif 2417 2418 s = splusb(); 2419 2420 /* Set up interrupt info. */ 2421 ii->xfer = xfer; 2422 ii->stdstart = end; 2423 ii->stdend = end; 2424 #ifdef DIAGNOSTIC 2425 if (!ii->isdone) 2426 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2427 ii->isdone = 0; 2428 #endif 2429 uhci_add_intr_info(sc, ii); 2430 2431 splx(s); 2432 2433 return (USBD_IN_PROGRESS); 2434 } 2435 2436 void 2437 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2438 { 2439 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2440 uhci_soft_td_t **stds = upipe->u.iso.stds; 2441 uhci_soft_td_t *std; 2442 int i, n, s, nframes, maxlen, len; 2443 2444 s = splusb(); 2445 2446 /* Transfer is already done. */ 2447 if (xfer->status != USBD_NOT_STARTED && 2448 xfer->status != USBD_IN_PROGRESS) { 2449 splx(s); 2450 return; 2451 } 2452 2453 /* Give xfer the requested abort code. */ 2454 xfer->status = USBD_CANCELLED; 2455 2456 /* make hardware ignore it, */ 2457 nframes = xfer->nframes; 2458 n = UXFER(xfer)->curframe; 2459 maxlen = 0; 2460 for (i = 0; i < nframes; i++) { 2461 std = stds[n]; 2462 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2463 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2464 if (len > maxlen) 2465 maxlen = len; 2466 if (++n >= UHCI_VFRAMELIST_COUNT) 2467 n = 0; 2468 } 2469 2470 /* and wait until we are sure the hardware has finished. */ 2471 delay(maxlen); 2472 2473 #ifdef DIAGNOSTIC 2474 UXFER(xfer)->iinfo.isdone = 1; 2475 #endif 2476 /* Run callback and remove from interrupt list. */ 2477 usb_transfer_complete(xfer); 2478 2479 splx(s); 2480 } 2481 2482 void 2483 uhci_device_isoc_close(usbd_pipe_handle pipe) 2484 { 2485 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2486 usbd_device_handle dev = upipe->pipe.device; 2487 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2488 uhci_soft_td_t *std, *vstd; 2489 struct iso *iso; 2490 int i, s; 2491 2492 /* 2493 * Make sure all TDs are marked as inactive. 2494 * Wait for completion. 2495 * Unschedule. 2496 * Deallocate. 2497 */ 2498 iso = &upipe->u.iso; 2499 2500 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2501 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2502 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2503 2504 s = splusb(); 2505 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2506 std = iso->stds[i]; 2507 for (vstd = sc->sc_vframes[i].htd; 2508 vstd != NULL && vstd->link.std != std; 2509 vstd = vstd->link.std) 2510 ; 2511 if (vstd == NULL) { 2512 /*panic*/ 2513 printf("uhci_device_isoc_close: %p not found\n", std); 2514 splx(s); 2515 return; 2516 } 2517 vstd->link = std->link; 2518 vstd->td.td_link = std->td.td_link; 2519 uhci_free_std(sc, std); 2520 } 2521 splx(s); 2522 2523 free(iso->stds, M_USBHC); 2524 } 2525 2526 usbd_status 2527 uhci_setup_isoc(usbd_pipe_handle pipe) 2528 { 2529 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2530 usbd_device_handle dev = upipe->pipe.device; 2531 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2532 int addr = upipe->pipe.device->address; 2533 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2534 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2535 uhci_soft_td_t *std, *vstd; 2536 u_int32_t token; 2537 struct iso *iso; 2538 int i, s; 2539 2540 iso = &upipe->u.iso; 2541 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2542 M_USBHC, M_WAITOK); 2543 2544 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2545 UHCI_TD_OUT(0, endpt, addr, 0); 2546 2547 /* Allocate the TDs and mark as inactive; */ 2548 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2549 std = uhci_alloc_std(sc); 2550 if (std == 0) 2551 goto bad; 2552 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2553 std->td.td_token = htole32(token); 2554 iso->stds[i] = std; 2555 } 2556 2557 /* Insert TDs into schedule. */ 2558 s = splusb(); 2559 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2560 std = iso->stds[i]; 2561 vstd = sc->sc_vframes[i].htd; 2562 std->link = vstd->link; 2563 std->td.td_link = vstd->td.td_link; 2564 vstd->link.std = std; 2565 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2566 } 2567 splx(s); 2568 2569 iso->next = -1; 2570 iso->inuse = 0; 2571 2572 return (USBD_NORMAL_COMPLETION); 2573 2574 bad: 2575 while (--i >= 0) 2576 uhci_free_std(sc, iso->stds[i]); 2577 free(iso->stds, M_USBHC); 2578 return (USBD_NOMEM); 2579 } 2580 2581 void 2582 uhci_device_isoc_done(usbd_xfer_handle xfer) 2583 { 2584 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2585 2586 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2587 2588 if (ii->xfer != xfer) 2589 /* Not on interrupt list, ignore it. */ 2590 return; 2591 2592 if (!uhci_active_intr_info(ii)) 2593 return; 2594 2595 #ifdef DIAGNOSTIC 2596 if (xfer->busy_free != XFER_BUSY) { 2597 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2598 xfer, xfer->busy_free); 2599 return; 2600 } 2601 2602 if (ii->stdend == NULL) { 2603 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2604 #ifdef UHCI_DEBUG 2605 uhci_dump_ii(ii); 2606 #endif 2607 return; 2608 } 2609 #endif 2610 2611 /* Turn off the interrupt since it is active even if the TD is not. */ 2612 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2613 2614 uhci_del_intr_info(ii); /* remove from active list */ 2615 } 2616 2617 void 2618 uhci_device_intr_done(usbd_xfer_handle xfer) 2619 { 2620 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2621 uhci_softc_t *sc = ii->sc; 2622 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2623 uhci_soft_qh_t *sqh; 2624 int i, npoll; 2625 2626 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2627 2628 npoll = upipe->u.intr.npoll; 2629 for(i = 0; i < npoll; i++) { 2630 sqh = upipe->u.intr.qhs[i]; 2631 sqh->elink = NULL; 2632 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2633 } 2634 uhci_free_std_chain(sc, ii->stdstart, NULL); 2635 2636 /* XXX Wasteful. */ 2637 if (xfer->pipe->repeat) { 2638 uhci_soft_td_t *data, *dataend; 2639 2640 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2641 2642 /* This alloc cannot fail since we freed the chain above. */ 2643 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2644 &xfer->dmabuf, &data, &dataend); 2645 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2646 2647 #ifdef UHCI_DEBUG 2648 if (uhcidebug > 10) { 2649 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2650 uhci_dump_tds(data); 2651 uhci_dump_qh(upipe->u.intr.qhs[0]); 2652 } 2653 #endif 2654 2655 ii->stdstart = data; 2656 ii->stdend = dataend; 2657 #ifdef DIAGNOSTIC 2658 if (!ii->isdone) { 2659 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2660 } 2661 ii->isdone = 0; 2662 #endif 2663 for (i = 0; i < npoll; i++) { 2664 sqh = upipe->u.intr.qhs[i]; 2665 sqh->elink = data; 2666 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2667 } 2668 xfer->status = USBD_IN_PROGRESS; 2669 /* The ii is already on the examined list, just leave it. */ 2670 } else { 2671 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2672 if (uhci_active_intr_info(ii)) 2673 uhci_del_intr_info(ii); 2674 } 2675 } 2676 2677 /* Deallocate request data structures */ 2678 void 2679 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2680 { 2681 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2682 uhci_softc_t *sc = ii->sc; 2683 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2684 2685 #ifdef DIAGNOSTIC 2686 if (!(xfer->rqflags & URQ_REQUEST)) 2687 panic("uhci_ctrl_done: not a request"); 2688 #endif 2689 2690 if (!uhci_active_intr_info(ii)) 2691 return; 2692 2693 uhci_del_intr_info(ii); /* remove from active list */ 2694 2695 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2696 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2697 else 2698 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2699 2700 if (upipe->u.ctl.length != 0) 2701 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2702 2703 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2704 } 2705 2706 /* Deallocate request data structures */ 2707 void 2708 uhci_device_bulk_done(usbd_xfer_handle xfer) 2709 { 2710 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2711 uhci_softc_t *sc = ii->sc; 2712 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2713 2714 DPRINTFN(5,("uhci_device_ctrl_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2715 xfer, ii, sc, upipe)); 2716 2717 if (!uhci_active_intr_info(ii)) 2718 return; 2719 2720 uhci_del_intr_info(ii); /* remove from active list */ 2721 2722 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2723 2724 uhci_free_std_chain(sc, ii->stdstart, NULL); 2725 2726 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2727 } 2728 2729 /* Add interrupt QH, called with vflock. */ 2730 void 2731 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2732 { 2733 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2734 uhci_soft_qh_t *eqh; 2735 2736 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2737 2738 eqh = vf->eqh; 2739 sqh->hlink = eqh->hlink; 2740 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2741 eqh->hlink = sqh; 2742 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2743 vf->eqh = sqh; 2744 vf->bandwidth++; 2745 } 2746 2747 /* Remove interrupt QH. */ 2748 void 2749 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2750 { 2751 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2752 uhci_soft_qh_t *pqh; 2753 2754 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2755 2756 /* See comment in uhci_remove_ctrl() */ 2757 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2758 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2759 delay(UHCI_QH_REMOVE_DELAY); 2760 } 2761 2762 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2763 pqh->hlink = sqh->hlink; 2764 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2765 delay(UHCI_QH_REMOVE_DELAY); 2766 if (vf->eqh == sqh) 2767 vf->eqh = pqh; 2768 vf->bandwidth--; 2769 } 2770 2771 usbd_status 2772 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2773 { 2774 uhci_soft_qh_t *sqh; 2775 int i, npoll, s; 2776 u_int bestbw, bw, bestoffs, offs; 2777 2778 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2779 if (ival == 0) { 2780 printf("uhci_setintr: 0 interval\n"); 2781 return (USBD_INVAL); 2782 } 2783 2784 if (ival > UHCI_VFRAMELIST_COUNT) 2785 ival = UHCI_VFRAMELIST_COUNT; 2786 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2787 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2788 2789 upipe->u.intr.npoll = npoll; 2790 upipe->u.intr.qhs = 2791 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2792 2793 /* 2794 * Figure out which offset in the schedule that has most 2795 * bandwidth left over. 2796 */ 2797 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2798 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2799 for (bw = i = 0; i < npoll; i++) 2800 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2801 if (bw < bestbw) { 2802 bestbw = bw; 2803 bestoffs = offs; 2804 } 2805 } 2806 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2807 2808 for(i = 0; i < npoll; i++) { 2809 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2810 sqh->elink = NULL; 2811 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2812 sqh->pos = MOD(i * ival + bestoffs); 2813 } 2814 #undef MOD 2815 2816 s = splusb(); 2817 /* Enter QHs into the controller data structures. */ 2818 for(i = 0; i < npoll; i++) 2819 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2820 splx(s); 2821 2822 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2823 return (USBD_NORMAL_COMPLETION); 2824 } 2825 2826 /* Open a new pipe. */ 2827 usbd_status 2828 uhci_open(usbd_pipe_handle pipe) 2829 { 2830 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2831 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2832 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2833 usbd_status err; 2834 int ival; 2835 2836 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2837 pipe, pipe->device->address, 2838 ed->bEndpointAddress, sc->sc_addr)); 2839 2840 upipe->aborting = 0; 2841 upipe->nexttoggle = 0; 2842 2843 if (pipe->device->address == sc->sc_addr) { 2844 switch (ed->bEndpointAddress) { 2845 case USB_CONTROL_ENDPOINT: 2846 pipe->methods = &uhci_root_ctrl_methods; 2847 break; 2848 case UE_DIR_IN | UHCI_INTR_ENDPT: 2849 pipe->methods = &uhci_root_intr_methods; 2850 break; 2851 default: 2852 return (USBD_INVAL); 2853 } 2854 } else { 2855 switch (ed->bmAttributes & UE_XFERTYPE) { 2856 case UE_CONTROL: 2857 pipe->methods = &uhci_device_ctrl_methods; 2858 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2859 if (upipe->u.ctl.sqh == NULL) 2860 goto bad; 2861 upipe->u.ctl.setup = uhci_alloc_std(sc); 2862 if (upipe->u.ctl.setup == NULL) { 2863 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2864 goto bad; 2865 } 2866 upipe->u.ctl.stat = uhci_alloc_std(sc); 2867 if (upipe->u.ctl.stat == NULL) { 2868 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2869 uhci_free_std(sc, upipe->u.ctl.setup); 2870 goto bad; 2871 } 2872 err = usb_allocmem(&sc->sc_bus, 2873 sizeof(usb_device_request_t), 2874 0, &upipe->u.ctl.reqdma); 2875 if (err) { 2876 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2877 uhci_free_std(sc, upipe->u.ctl.setup); 2878 uhci_free_std(sc, upipe->u.ctl.stat); 2879 goto bad; 2880 } 2881 break; 2882 case UE_INTERRUPT: 2883 pipe->methods = &uhci_device_intr_methods; 2884 ival = pipe->interval; 2885 if (ival == USBD_DEFAULT_INTERVAL) 2886 ival = ed->bInterval; 2887 return (uhci_device_setintr(sc, upipe, ival)); 2888 case UE_ISOCHRONOUS: 2889 pipe->methods = &uhci_device_isoc_methods; 2890 return (uhci_setup_isoc(pipe)); 2891 case UE_BULK: 2892 pipe->methods = &uhci_device_bulk_methods; 2893 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2894 if (upipe->u.bulk.sqh == NULL) 2895 goto bad; 2896 break; 2897 } 2898 } 2899 return (USBD_NORMAL_COMPLETION); 2900 2901 bad: 2902 return (USBD_NOMEM); 2903 } 2904 2905 /* 2906 * Data structures and routines to emulate the root hub. 2907 */ 2908 usb_device_descriptor_t uhci_devd = { 2909 USB_DEVICE_DESCRIPTOR_SIZE, 2910 UDESC_DEVICE, /* type */ 2911 {0x00, 0x01}, /* USB version */ 2912 UDCLASS_HUB, /* class */ 2913 UDSUBCLASS_HUB, /* subclass */ 2914 UDPROTO_FSHUB, /* protocol */ 2915 64, /* max packet */ 2916 {0},{0},{0x00,0x01}, /* device id */ 2917 1,2,0, /* string indicies */ 2918 1 /* # of configurations */ 2919 }; 2920 2921 usb_config_descriptor_t uhci_confd = { 2922 USB_CONFIG_DESCRIPTOR_SIZE, 2923 UDESC_CONFIG, 2924 {USB_CONFIG_DESCRIPTOR_SIZE + 2925 USB_INTERFACE_DESCRIPTOR_SIZE + 2926 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2927 1, 2928 1, 2929 0, 2930 UC_SELF_POWERED, 2931 0 /* max power */ 2932 }; 2933 2934 usb_interface_descriptor_t uhci_ifcd = { 2935 USB_INTERFACE_DESCRIPTOR_SIZE, 2936 UDESC_INTERFACE, 2937 0, 2938 0, 2939 1, 2940 UICLASS_HUB, 2941 UISUBCLASS_HUB, 2942 UIPROTO_FSHUB, 2943 0 2944 }; 2945 2946 usb_endpoint_descriptor_t uhci_endpd = { 2947 USB_ENDPOINT_DESCRIPTOR_SIZE, 2948 UDESC_ENDPOINT, 2949 UE_DIR_IN | UHCI_INTR_ENDPT, 2950 UE_INTERRUPT, 2951 {8}, 2952 255 2953 }; 2954 2955 usb_hub_descriptor_t uhci_hubd_piix = { 2956 USB_HUB_DESCRIPTOR_SIZE, 2957 UDESC_HUB, 2958 2, 2959 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2960 50, /* power on to power good */ 2961 0, 2962 { 0x00 }, /* both ports are removable */ 2963 }; 2964 2965 int 2966 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2967 { 2968 int i; 2969 2970 if (l == 0) 2971 return (0); 2972 p->bLength = 2 * strlen(s) + 2; 2973 if (l == 1) 2974 return (1); 2975 p->bDescriptorType = UDESC_STRING; 2976 l -= 2; 2977 for (i = 0; s[i] && l > 1; i++, l -= 2) 2978 USETW2(p->bString[i], 0, s[i]); 2979 return (2*i+2); 2980 } 2981 2982 /* 2983 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 2984 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 2985 * should not be used by the USB subsystem. As we cannot issue a 2986 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 2987 * will be enabled as part of the reset. 2988 * 2989 * On the VT83C572, the port cannot be successfully enabled until the 2990 * outstanding "port enable change" and "connection status change" 2991 * events have been reset. 2992 */ 2993 Static usbd_status 2994 uhci_portreset(uhci_softc_t *sc, int index) 2995 { 2996 int lim, port, x; 2997 2998 if (index == 1) 2999 port = UHCI_PORTSC1; 3000 else if (index == 2) 3001 port = UHCI_PORTSC2; 3002 else 3003 return (USBD_IOERROR); 3004 3005 x = URWMASK(UREAD2(sc, port)); 3006 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3007 3008 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3009 3010 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3011 index, UREAD2(sc, port))); 3012 3013 x = URWMASK(UREAD2(sc, port)); 3014 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3015 3016 delay(100); 3017 3018 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3019 index, UREAD2(sc, port))); 3020 3021 x = URWMASK(UREAD2(sc, port)); 3022 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3023 3024 for (lim = 10; --lim > 0;) { 3025 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3026 3027 x = UREAD2(sc, port); 3028 3029 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3030 index, lim, x)); 3031 3032 if (!(x & UHCI_PORTSC_CCS)) { 3033 /* 3034 * No device is connected (or was disconnected 3035 * during reset). Consider the port reset. 3036 * The delay must be long enough to ensure on 3037 * the initial iteration that the device 3038 * connection will have been registered. 50ms 3039 * appears to be sufficient, but 20ms is not. 3040 */ 3041 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3042 index, lim)); 3043 break; 3044 } 3045 3046 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3047 /* 3048 * Port enabled changed and/or connection 3049 * status changed were set. Reset either or 3050 * both raised flags (by writing a 1 to that 3051 * bit), and wait again for state to settle. 3052 */ 3053 UWRITE2(sc, port, URWMASK(x) | 3054 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3055 continue; 3056 } 3057 3058 if (x & UHCI_PORTSC_PE) 3059 /* Port is enabled */ 3060 break; 3061 3062 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3063 } 3064 3065 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3066 index, UREAD2(sc, port))); 3067 3068 if (lim <= 0) { 3069 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3070 return (USBD_TIMEOUT); 3071 } 3072 3073 sc->sc_isreset = 1; 3074 return (USBD_NORMAL_COMPLETION); 3075 } 3076 3077 /* 3078 * Simulate a hardware hub by handling all the necessary requests. 3079 */ 3080 usbd_status 3081 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3082 { 3083 usbd_status err; 3084 3085 /* Insert last in queue. */ 3086 err = usb_insert_transfer(xfer); 3087 if (err) 3088 return (err); 3089 3090 /* 3091 * Pipe isn't running (otherwise err would be USBD_INPROG), 3092 * so start it first. 3093 */ 3094 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3095 } 3096 3097 usbd_status 3098 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3099 { 3100 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3101 usb_device_request_t *req; 3102 void *buf = NULL; 3103 int port, x; 3104 int s, len, value, index, status, change, l, totlen = 0; 3105 usb_port_status_t ps; 3106 usbd_status err; 3107 3108 if (sc->sc_dying) 3109 return (USBD_IOERROR); 3110 3111 #ifdef DIAGNOSTIC 3112 if (!(xfer->rqflags & URQ_REQUEST)) 3113 panic("uhci_root_ctrl_transfer: not a request"); 3114 #endif 3115 req = &xfer->request; 3116 3117 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3118 req->bmRequestType, req->bRequest)); 3119 3120 len = UGETW(req->wLength); 3121 value = UGETW(req->wValue); 3122 index = UGETW(req->wIndex); 3123 3124 if (len != 0) 3125 buf = KERNADDR(&xfer->dmabuf, 0); 3126 3127 #define C(x,y) ((x) | ((y) << 8)) 3128 switch(C(req->bRequest, req->bmRequestType)) { 3129 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3130 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3131 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3132 /* 3133 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3134 * for the integrated root hub. 3135 */ 3136 break; 3137 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3138 if (len > 0) { 3139 *(u_int8_t *)buf = sc->sc_conf; 3140 totlen = 1; 3141 } 3142 break; 3143 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3144 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3145 switch(value >> 8) { 3146 case UDESC_DEVICE: 3147 if ((value & 0xff) != 0) { 3148 err = USBD_IOERROR; 3149 goto ret; 3150 } 3151 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3152 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3153 memcpy(buf, &uhci_devd, l); 3154 break; 3155 case UDESC_CONFIG: 3156 if ((value & 0xff) != 0) { 3157 err = USBD_IOERROR; 3158 goto ret; 3159 } 3160 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3161 memcpy(buf, &uhci_confd, l); 3162 buf = (char *)buf + l; 3163 len -= l; 3164 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3165 totlen += l; 3166 memcpy(buf, &uhci_ifcd, l); 3167 buf = (char *)buf + l; 3168 len -= l; 3169 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3170 totlen += l; 3171 memcpy(buf, &uhci_endpd, l); 3172 break; 3173 case UDESC_STRING: 3174 if (len == 0) 3175 break; 3176 *(u_int8_t *)buf = 0; 3177 totlen = 1; 3178 switch (value & 0xff) { 3179 case 1: /* Vendor */ 3180 totlen = uhci_str(buf, len, sc->sc_vendor); 3181 break; 3182 case 2: /* Product */ 3183 totlen = uhci_str(buf, len, "UHCI root hub"); 3184 break; 3185 } 3186 break; 3187 default: 3188 err = USBD_IOERROR; 3189 goto ret; 3190 } 3191 break; 3192 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3193 if (len > 0) { 3194 *(u_int8_t *)buf = 0; 3195 totlen = 1; 3196 } 3197 break; 3198 case C(UR_GET_STATUS, UT_READ_DEVICE): 3199 if (len > 1) { 3200 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3201 totlen = 2; 3202 } 3203 break; 3204 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3205 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3206 if (len > 1) { 3207 USETW(((usb_status_t *)buf)->wStatus, 0); 3208 totlen = 2; 3209 } 3210 break; 3211 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3212 if (value >= USB_MAX_DEVICES) { 3213 err = USBD_IOERROR; 3214 goto ret; 3215 } 3216 sc->sc_addr = value; 3217 break; 3218 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3219 if (value != 0 && value != 1) { 3220 err = USBD_IOERROR; 3221 goto ret; 3222 } 3223 sc->sc_conf = value; 3224 break; 3225 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3226 break; 3227 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3228 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3229 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3230 err = USBD_IOERROR; 3231 goto ret; 3232 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3233 break; 3234 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3235 break; 3236 /* Hub requests */ 3237 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3238 break; 3239 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3240 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3241 "port=%d feature=%d\n", 3242 index, value)); 3243 if (index == 1) 3244 port = UHCI_PORTSC1; 3245 else if (index == 2) 3246 port = UHCI_PORTSC2; 3247 else { 3248 err = USBD_IOERROR; 3249 goto ret; 3250 } 3251 switch(value) { 3252 case UHF_PORT_ENABLE: 3253 x = URWMASK(UREAD2(sc, port)); 3254 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3255 break; 3256 case UHF_PORT_SUSPEND: 3257 x = URWMASK(UREAD2(sc, port)); 3258 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3259 break; 3260 case UHF_PORT_RESET: 3261 x = URWMASK(UREAD2(sc, port)); 3262 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3263 break; 3264 case UHF_C_PORT_CONNECTION: 3265 x = URWMASK(UREAD2(sc, port)); 3266 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3267 break; 3268 case UHF_C_PORT_ENABLE: 3269 x = URWMASK(UREAD2(sc, port)); 3270 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3271 break; 3272 case UHF_C_PORT_OVER_CURRENT: 3273 x = URWMASK(UREAD2(sc, port)); 3274 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3275 break; 3276 case UHF_C_PORT_RESET: 3277 sc->sc_isreset = 0; 3278 err = USBD_NORMAL_COMPLETION; 3279 goto ret; 3280 case UHF_PORT_CONNECTION: 3281 case UHF_PORT_OVER_CURRENT: 3282 case UHF_PORT_POWER: 3283 case UHF_PORT_LOW_SPEED: 3284 case UHF_C_PORT_SUSPEND: 3285 default: 3286 err = USBD_IOERROR; 3287 goto ret; 3288 } 3289 break; 3290 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3291 if (index == 1) 3292 port = UHCI_PORTSC1; 3293 else if (index == 2) 3294 port = UHCI_PORTSC2; 3295 else { 3296 err = USBD_IOERROR; 3297 goto ret; 3298 } 3299 if (len > 0) { 3300 *(u_int8_t *)buf = 3301 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3302 UHCI_PORTSC_LS_SHIFT; 3303 totlen = 1; 3304 } 3305 break; 3306 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3307 if (value != 0) { 3308 err = USBD_IOERROR; 3309 goto ret; 3310 } 3311 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3312 totlen = l; 3313 memcpy(buf, &uhci_hubd_piix, l); 3314 break; 3315 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3316 if (len != 4) { 3317 err = USBD_IOERROR; 3318 goto ret; 3319 } 3320 memset(buf, 0, len); 3321 totlen = len; 3322 break; 3323 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3324 if (index == 1) 3325 port = UHCI_PORTSC1; 3326 else if (index == 2) 3327 port = UHCI_PORTSC2; 3328 else { 3329 err = USBD_IOERROR; 3330 goto ret; 3331 } 3332 if (len != 4) { 3333 err = USBD_IOERROR; 3334 goto ret; 3335 } 3336 x = UREAD2(sc, port); 3337 status = change = 0; 3338 if (x & UHCI_PORTSC_CCS) 3339 status |= UPS_CURRENT_CONNECT_STATUS; 3340 if (x & UHCI_PORTSC_CSC) 3341 change |= UPS_C_CONNECT_STATUS; 3342 if (x & UHCI_PORTSC_PE) 3343 status |= UPS_PORT_ENABLED; 3344 if (x & UHCI_PORTSC_POEDC) 3345 change |= UPS_C_PORT_ENABLED; 3346 if (x & UHCI_PORTSC_OCI) 3347 status |= UPS_OVERCURRENT_INDICATOR; 3348 if (x & UHCI_PORTSC_OCIC) 3349 change |= UPS_C_OVERCURRENT_INDICATOR; 3350 if (x & UHCI_PORTSC_SUSP) 3351 status |= UPS_SUSPEND; 3352 if (x & UHCI_PORTSC_LSDA) 3353 status |= UPS_LOW_SPEED; 3354 status |= UPS_PORT_POWER; 3355 if (sc->sc_isreset) 3356 change |= UPS_C_PORT_RESET; 3357 USETW(ps.wPortStatus, status); 3358 USETW(ps.wPortChange, change); 3359 l = min(len, sizeof ps); 3360 memcpy(buf, &ps, l); 3361 totlen = l; 3362 break; 3363 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3364 err = USBD_IOERROR; 3365 goto ret; 3366 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3367 break; 3368 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3369 if (index == 1) 3370 port = UHCI_PORTSC1; 3371 else if (index == 2) 3372 port = UHCI_PORTSC2; 3373 else { 3374 err = USBD_IOERROR; 3375 goto ret; 3376 } 3377 switch(value) { 3378 case UHF_PORT_ENABLE: 3379 x = URWMASK(UREAD2(sc, port)); 3380 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3381 break; 3382 case UHF_PORT_SUSPEND: 3383 x = URWMASK(UREAD2(sc, port)); 3384 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3385 break; 3386 case UHF_PORT_RESET: 3387 err = uhci_portreset(sc, index); 3388 goto ret; 3389 case UHF_PORT_POWER: 3390 /* Pretend we turned on power */ 3391 err = USBD_NORMAL_COMPLETION; 3392 goto ret; 3393 case UHF_C_PORT_CONNECTION: 3394 case UHF_C_PORT_ENABLE: 3395 case UHF_C_PORT_OVER_CURRENT: 3396 case UHF_PORT_CONNECTION: 3397 case UHF_PORT_OVER_CURRENT: 3398 case UHF_PORT_LOW_SPEED: 3399 case UHF_C_PORT_SUSPEND: 3400 case UHF_C_PORT_RESET: 3401 default: 3402 err = USBD_IOERROR; 3403 goto ret; 3404 } 3405 break; 3406 default: 3407 err = USBD_IOERROR; 3408 goto ret; 3409 } 3410 xfer->actlen = totlen; 3411 err = USBD_NORMAL_COMPLETION; 3412 ret: 3413 xfer->status = err; 3414 s = splusb(); 3415 usb_transfer_complete(xfer); 3416 splx(s); 3417 return (USBD_IN_PROGRESS); 3418 } 3419 3420 /* Abort a root control request. */ 3421 void 3422 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3423 { 3424 /* Nothing to do, all transfers are synchronous. */ 3425 } 3426 3427 /* Close the root pipe. */ 3428 void 3429 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3430 { 3431 DPRINTF(("uhci_root_ctrl_close\n")); 3432 } 3433 3434 /* Abort a root interrupt request. */ 3435 void 3436 uhci_root_intr_abort(usbd_xfer_handle xfer) 3437 { 3438 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3439 3440 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3441 sc->sc_intr_xfer = NULL; 3442 3443 if (xfer->pipe->intrxfer == xfer) { 3444 DPRINTF(("uhci_root_intr_abort: remove\n")); 3445 xfer->pipe->intrxfer = 0; 3446 } 3447 xfer->status = USBD_CANCELLED; 3448 #ifdef DIAGNOSTIC 3449 UXFER(xfer)->iinfo.isdone = 1; 3450 #endif 3451 usb_transfer_complete(xfer); 3452 } 3453 3454 usbd_status 3455 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3456 { 3457 usbd_status err; 3458 3459 /* Insert last in queue. */ 3460 err = usb_insert_transfer(xfer); 3461 if (err) 3462 return (err); 3463 3464 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3465 * start first 3466 */ 3467 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3468 } 3469 3470 /* Start a transfer on the root interrupt pipe */ 3471 usbd_status 3472 uhci_root_intr_start(usbd_xfer_handle xfer) 3473 { 3474 usbd_pipe_handle pipe = xfer->pipe; 3475 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3476 3477 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3478 xfer, xfer->length, xfer->flags)); 3479 3480 if (sc->sc_dying) 3481 return (USBD_IOERROR); 3482 3483 sc->sc_ival = mstohz(xfer->pipe->endpoint->edesc->bInterval); 3484 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3485 sc->sc_intr_xfer = xfer; 3486 return (USBD_IN_PROGRESS); 3487 } 3488 3489 /* Close the root interrupt pipe. */ 3490 void 3491 uhci_root_intr_close(usbd_pipe_handle pipe) 3492 { 3493 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3494 3495 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3496 sc->sc_intr_xfer = NULL; 3497 DPRINTF(("uhci_root_intr_close\n")); 3498 } 3499
Indexes created Tue Sep 30 17:09:57 GMT 2025