uhci.c revision 1.178.2.1.2.1
1 /* $NetBSD: uhci.c,v 1.178.2.1.2.1 2005/05/13 17:09:28 riz 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 1.178.2.1.2.1 2005/05/13 17:09:28 riz 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 #include <sys/extent.h> 62 #include <uvm/uvm_extern.h> 63 #elif defined(__FreeBSD__) 64 #include <sys/module.h> 65 #include <sys/bus.h> 66 #include <machine/bus_pio.h> 67 #if defined(DIAGNOSTIC) && defined(__i386__) 68 #include <machine/cpu.h> 69 #endif 70 #endif 71 #include <sys/proc.h> 72 #include <sys/queue.h> 73 74 #include <machine/bus.h> 75 #include <machine/endian.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdivar.h> 80 #include <dev/usb/usb_mem.h> 81 #include <dev/usb/usb_quirks.h> 82 83 #include <dev/usb/uhcireg.h> 84 #include <dev/usb/uhcivar.h> 85 86 /* Use bandwidth reclamation for control transfers. Some devices choke on it. */ 87 /*#define UHCI_CTL_LOOP */ 88 89 #if defined(__FreeBSD__) 90 #include <machine/clock.h> 91 92 #define delay(d) DELAY(d) 93 #endif 94 95 #if defined(__OpenBSD__) 96 struct cfdriver uhci_cd = { 97 NULL, "uhci", DV_DULL 98 }; 99 #endif 100 101 #ifdef UHCI_DEBUG 102 uhci_softc_t *thesc; 103 #define DPRINTF(x) if (uhcidebug) printf x 104 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 105 int uhcidebug = 0; 106 int uhcinoloop = 0; 107 #ifndef __NetBSD__ 108 #define bitmask_snprintf(q,f,b,l) snprintf((b), (l), "%b", (q), (f)) 109 #endif 110 #else 111 #define DPRINTF(x) 112 #define DPRINTFN(n,x) 113 #endif 114 115 /* 116 * The UHCI controller is little endian, so on big endian machines 117 * the data strored in memory needs to be swapped. 118 */ 119 #if defined(__FreeBSD__) || defined(__OpenBSD__) 120 #if BYTE_ORDER == BIG_ENDIAN 121 #define htole32(x) (bswap32(x)) 122 #define le32toh(x) (bswap32(x)) 123 #else 124 #define htole32(x) (x) 125 #define le32toh(x) (x) 126 #endif 127 #endif 128 129 struct uhci_pipe { 130 struct usbd_pipe pipe; 131 int nexttoggle; 132 133 u_char aborting; 134 usbd_xfer_handle abortstart, abortend; 135 136 /* Info needed for different pipe kinds. */ 137 union { 138 /* Control pipe */ 139 struct { 140 uhci_soft_qh_t *sqh; 141 usb_dma_t reqdma; 142 uhci_soft_td_t *setup, *stat; 143 u_int length; 144 } ctl; 145 /* Interrupt pipe */ 146 struct { 147 int npoll; 148 uhci_soft_qh_t **qhs; 149 } intr; 150 /* Bulk pipe */ 151 struct { 152 uhci_soft_qh_t *sqh; 153 u_int length; 154 int isread; 155 } bulk; 156 /* Iso pipe */ 157 struct iso { 158 uhci_soft_td_t **stds; 159 int next, inuse; 160 } iso; 161 } u; 162 }; 163 164 Static void uhci_globalreset(uhci_softc_t *); 165 Static usbd_status uhci_portreset(uhci_softc_t*, int); 166 Static void uhci_reset(uhci_softc_t *); 167 Static void uhci_shutdown(void *v); 168 Static void uhci_power(int, void *); 169 Static usbd_status uhci_run(uhci_softc_t *, int run); 170 Static uhci_soft_td_t *uhci_alloc_std(uhci_softc_t *); 171 Static void uhci_free_std(uhci_softc_t *, uhci_soft_td_t *); 172 Static uhci_soft_qh_t *uhci_alloc_sqh(uhci_softc_t *); 173 Static void uhci_free_sqh(uhci_softc_t *, uhci_soft_qh_t *); 174 #if 0 175 Static void uhci_enter_ctl_q(uhci_softc_t *, uhci_soft_qh_t *, 176 uhci_intr_info_t *); 177 Static void uhci_exit_ctl_q(uhci_softc_t *, uhci_soft_qh_t *); 178 #endif 179 180 Static void uhci_free_std_chain(uhci_softc_t *, 181 uhci_soft_td_t *, uhci_soft_td_t *); 182 Static usbd_status uhci_alloc_std_chain(struct uhci_pipe *, 183 uhci_softc_t *, int, int, u_int16_t, usb_dma_t *, 184 uhci_soft_td_t **, uhci_soft_td_t **); 185 Static void uhci_poll_hub(void *); 186 Static void uhci_waitintr(uhci_softc_t *, usbd_xfer_handle); 187 Static void uhci_check_intr(uhci_softc_t *, uhci_intr_info_t *); 188 Static void uhci_idone(uhci_intr_info_t *); 189 190 Static void uhci_abort_xfer(usbd_xfer_handle, usbd_status status); 191 192 Static void uhci_timeout(void *); 193 Static void uhci_timeout_task(void *); 194 Static void uhci_add_ls_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 195 Static void uhci_add_hs_ctrl(uhci_softc_t *, uhci_soft_qh_t *); 196 Static void uhci_add_bulk(uhci_softc_t *, uhci_soft_qh_t *); 197 Static void uhci_remove_ls_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 198 Static void uhci_remove_hs_ctrl(uhci_softc_t *,uhci_soft_qh_t *); 199 Static void uhci_remove_bulk(uhci_softc_t *,uhci_soft_qh_t *); 200 Static int uhci_str(usb_string_descriptor_t *, int, char *); 201 Static void uhci_add_loop(uhci_softc_t *sc); 202 Static void uhci_rem_loop(uhci_softc_t *sc); 203 204 Static usbd_status uhci_setup_isoc(usbd_pipe_handle pipe); 205 Static void uhci_device_isoc_enter(usbd_xfer_handle); 206 207 Static usbd_status uhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t); 208 Static void uhci_freem(struct usbd_bus *, usb_dma_t *); 209 210 Static usbd_xfer_handle uhci_allocx(struct usbd_bus *); 211 Static void uhci_freex(struct usbd_bus *, usbd_xfer_handle); 212 213 Static usbd_status uhci_device_ctrl_transfer(usbd_xfer_handle); 214 Static usbd_status uhci_device_ctrl_start(usbd_xfer_handle); 215 Static void uhci_device_ctrl_abort(usbd_xfer_handle); 216 Static void uhci_device_ctrl_close(usbd_pipe_handle); 217 Static void uhci_device_ctrl_done(usbd_xfer_handle); 218 219 Static usbd_status uhci_device_intr_transfer(usbd_xfer_handle); 220 Static usbd_status uhci_device_intr_start(usbd_xfer_handle); 221 Static void uhci_device_intr_abort(usbd_xfer_handle); 222 Static void uhci_device_intr_close(usbd_pipe_handle); 223 Static void uhci_device_intr_done(usbd_xfer_handle); 224 225 Static usbd_status uhci_device_bulk_transfer(usbd_xfer_handle); 226 Static usbd_status uhci_device_bulk_start(usbd_xfer_handle); 227 Static void uhci_device_bulk_abort(usbd_xfer_handle); 228 Static void uhci_device_bulk_close(usbd_pipe_handle); 229 Static void uhci_device_bulk_done(usbd_xfer_handle); 230 231 Static usbd_status uhci_device_isoc_transfer(usbd_xfer_handle); 232 Static usbd_status uhci_device_isoc_start(usbd_xfer_handle); 233 Static void uhci_device_isoc_abort(usbd_xfer_handle); 234 Static void uhci_device_isoc_close(usbd_pipe_handle); 235 Static void uhci_device_isoc_done(usbd_xfer_handle); 236 237 Static usbd_status uhci_root_ctrl_transfer(usbd_xfer_handle); 238 Static usbd_status uhci_root_ctrl_start(usbd_xfer_handle); 239 Static void uhci_root_ctrl_abort(usbd_xfer_handle); 240 Static void uhci_root_ctrl_close(usbd_pipe_handle); 241 Static void uhci_root_ctrl_done(usbd_xfer_handle); 242 243 Static usbd_status uhci_root_intr_transfer(usbd_xfer_handle); 244 Static usbd_status uhci_root_intr_start(usbd_xfer_handle); 245 Static void uhci_root_intr_abort(usbd_xfer_handle); 246 Static void uhci_root_intr_close(usbd_pipe_handle); 247 Static void uhci_root_intr_done(usbd_xfer_handle); 248 249 Static usbd_status uhci_open(usbd_pipe_handle); 250 Static void uhci_poll(struct usbd_bus *); 251 Static void uhci_softintr(void *); 252 253 Static usbd_status uhci_device_request(usbd_xfer_handle xfer); 254 255 Static void uhci_add_intr(uhci_softc_t *, uhci_soft_qh_t *); 256 Static void uhci_remove_intr(uhci_softc_t *, uhci_soft_qh_t *); 257 Static usbd_status uhci_device_setintr(uhci_softc_t *sc, 258 struct uhci_pipe *pipe, int ival); 259 260 Static void uhci_device_clear_toggle(usbd_pipe_handle pipe); 261 Static void uhci_noop(usbd_pipe_handle pipe); 262 263 Static __inline__ uhci_soft_qh_t *uhci_find_prev_qh(uhci_soft_qh_t *, 264 uhci_soft_qh_t *); 265 266 #ifdef UHCI_DEBUG 267 Static void uhci_dump_all(uhci_softc_t *); 268 Static void uhci_dumpregs(uhci_softc_t *); 269 Static void uhci_dump_qhs(uhci_soft_qh_t *); 270 Static void uhci_dump_qh(uhci_soft_qh_t *); 271 Static void uhci_dump_tds(uhci_soft_td_t *); 272 Static void uhci_dump_td(uhci_soft_td_t *); 273 Static void uhci_dump_ii(uhci_intr_info_t *ii); 274 void uhci_dump(void); 275 #endif 276 277 #define UBARR(sc) bus_space_barrier((sc)->iot, (sc)->ioh, 0, (sc)->sc_size, \ 278 BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE) 279 #define UWRITE1(sc, r, x) \ 280 do { UBARR(sc); bus_space_write_1((sc)->iot, (sc)->ioh, (r), (x)); \ 281 } while (/*CONSTCOND*/0) 282 #define UWRITE2(sc, r, x) \ 283 do { UBARR(sc); bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)); \ 284 } while (/*CONSTCOND*/0) 285 #define UWRITE4(sc, r, x) \ 286 do { UBARR(sc); bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)); \ 287 } while (/*CONSTCOND*/0) 288 #define UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->iot, (sc)->ioh, (r))) 289 #define UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->iot, (sc)->ioh, (r))) 290 #define UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->iot, (sc)->ioh, (r))) 291 292 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 293 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 294 295 #define UHCI_RESET_TIMEOUT 100 /* ms, reset timeout */ 296 297 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 298 299 #define UHCI_INTR_ENDPT 1 300 301 struct usbd_bus_methods uhci_bus_methods = { 302 uhci_open, 303 uhci_softintr, 304 uhci_poll, 305 uhci_allocm, 306 uhci_freem, 307 uhci_allocx, 308 uhci_freex, 309 }; 310 311 struct usbd_pipe_methods uhci_root_ctrl_methods = { 312 uhci_root_ctrl_transfer, 313 uhci_root_ctrl_start, 314 uhci_root_ctrl_abort, 315 uhci_root_ctrl_close, 316 uhci_noop, 317 uhci_root_ctrl_done, 318 }; 319 320 struct usbd_pipe_methods uhci_root_intr_methods = { 321 uhci_root_intr_transfer, 322 uhci_root_intr_start, 323 uhci_root_intr_abort, 324 uhci_root_intr_close, 325 uhci_noop, 326 uhci_root_intr_done, 327 }; 328 329 struct usbd_pipe_methods uhci_device_ctrl_methods = { 330 uhci_device_ctrl_transfer, 331 uhci_device_ctrl_start, 332 uhci_device_ctrl_abort, 333 uhci_device_ctrl_close, 334 uhci_noop, 335 uhci_device_ctrl_done, 336 }; 337 338 struct usbd_pipe_methods uhci_device_intr_methods = { 339 uhci_device_intr_transfer, 340 uhci_device_intr_start, 341 uhci_device_intr_abort, 342 uhci_device_intr_close, 343 uhci_device_clear_toggle, 344 uhci_device_intr_done, 345 }; 346 347 struct usbd_pipe_methods uhci_device_bulk_methods = { 348 uhci_device_bulk_transfer, 349 uhci_device_bulk_start, 350 uhci_device_bulk_abort, 351 uhci_device_bulk_close, 352 uhci_device_clear_toggle, 353 uhci_device_bulk_done, 354 }; 355 356 struct usbd_pipe_methods uhci_device_isoc_methods = { 357 uhci_device_isoc_transfer, 358 uhci_device_isoc_start, 359 uhci_device_isoc_abort, 360 uhci_device_isoc_close, 361 uhci_noop, 362 uhci_device_isoc_done, 363 }; 364 365 #define uhci_add_intr_info(sc, ii) \ 366 LIST_INSERT_HEAD(&(sc)->sc_intrhead, (ii), list) 367 #define uhci_del_intr_info(ii) \ 368 do { \ 369 LIST_REMOVE((ii), list); \ 370 (ii)->list.le_prev = NULL; \ 371 } while (0) 372 #define uhci_active_intr_info(ii) ((ii)->list.le_prev != NULL) 373 374 Static __inline__ uhci_soft_qh_t * 375 uhci_find_prev_qh(uhci_soft_qh_t *pqh, uhci_soft_qh_t *sqh) 376 { 377 DPRINTFN(15,("uhci_find_prev_qh: pqh=%p sqh=%p\n", pqh, sqh)); 378 379 for (; pqh->hlink != sqh; pqh = pqh->hlink) { 380 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 381 if (le32toh(pqh->qh.qh_hlink) & UHCI_PTR_T) { 382 printf("uhci_find_prev_qh: QH not found\n"); 383 return (NULL); 384 } 385 #endif 386 } 387 return (pqh); 388 } 389 390 void 391 uhci_globalreset(uhci_softc_t *sc) 392 { 393 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 394 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 395 UHCICMD(sc, 0); /* do nothing */ 396 } 397 398 usbd_status 399 uhci_init(uhci_softc_t *sc) 400 { 401 usbd_status err; 402 int i, j; 403 uhci_soft_qh_t *clsqh, *chsqh, *bsqh, *sqh, *lsqh; 404 uhci_soft_td_t *std; 405 406 DPRINTFN(1,("uhci_init: start\n")); 407 408 #ifdef UHCI_DEBUG 409 thesc = sc; 410 411 if (uhcidebug > 2) 412 uhci_dumpregs(sc); 413 #endif 414 415 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 416 uhci_globalreset(sc); /* reset the controller */ 417 uhci_reset(sc); 418 419 #ifdef __NetBSD__ 420 usb_setup_reserve(sc, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 421 USB_MEM_RESERVE); 422 #endif 423 424 /* Allocate and initialize real frame array. */ 425 err = usb_allocmem(&sc->sc_bus, 426 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 427 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 428 if (err) 429 return (err); 430 sc->sc_pframes = KERNADDR(&sc->sc_dma, 0); 431 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 432 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame list*/ 433 434 /* 435 * Allocate a TD, inactive, that hangs from the last QH. 436 * This is to avoid a bug in the PIIX that makes it run berserk 437 * otherwise. 438 */ 439 std = uhci_alloc_std(sc); 440 if (std == NULL) 441 return (USBD_NOMEM); 442 std->link.std = NULL; 443 std->td.td_link = htole32(UHCI_PTR_T); 444 std->td.td_status = htole32(0); /* inactive */ 445 std->td.td_token = htole32(0); 446 std->td.td_buffer = htole32(0); 447 448 /* Allocate the dummy QH marking the end and used for looping the QHs.*/ 449 lsqh = uhci_alloc_sqh(sc); 450 if (lsqh == NULL) 451 return (USBD_NOMEM); 452 lsqh->hlink = NULL; 453 lsqh->qh.qh_hlink = htole32(UHCI_PTR_T); /* end of QH chain */ 454 lsqh->elink = std; 455 lsqh->qh.qh_elink = htole32(std->physaddr | UHCI_PTR_TD); 456 sc->sc_last_qh = lsqh; 457 458 /* Allocate the dummy QH where bulk traffic will be queued. */ 459 bsqh = uhci_alloc_sqh(sc); 460 if (bsqh == NULL) 461 return (USBD_NOMEM); 462 bsqh->hlink = lsqh; 463 bsqh->qh.qh_hlink = htole32(lsqh->physaddr | UHCI_PTR_QH); 464 bsqh->elink = NULL; 465 bsqh->qh.qh_elink = htole32(UHCI_PTR_T); 466 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 467 468 /* Allocate dummy QH where high speed control traffic will be queued. */ 469 chsqh = uhci_alloc_sqh(sc); 470 if (chsqh == NULL) 471 return (USBD_NOMEM); 472 chsqh->hlink = bsqh; 473 chsqh->qh.qh_hlink = htole32(bsqh->physaddr | UHCI_PTR_QH); 474 chsqh->elink = NULL; 475 chsqh->qh.qh_elink = htole32(UHCI_PTR_T); 476 sc->sc_hctl_start = sc->sc_hctl_end = chsqh; 477 478 /* Allocate dummy QH where control traffic will be queued. */ 479 clsqh = uhci_alloc_sqh(sc); 480 if (clsqh == NULL) 481 return (USBD_NOMEM); 482 clsqh->hlink = bsqh; 483 clsqh->qh.qh_hlink = htole32(chsqh->physaddr | UHCI_PTR_QH); 484 clsqh->elink = NULL; 485 clsqh->qh.qh_elink = htole32(UHCI_PTR_T); 486 sc->sc_lctl_start = sc->sc_lctl_end = clsqh; 487 488 /* 489 * Make all (virtual) frame list pointers point to the interrupt 490 * queue heads and the interrupt queue heads at the control 491 * queue head and point the physical frame list to the virtual. 492 */ 493 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 494 std = uhci_alloc_std(sc); 495 sqh = uhci_alloc_sqh(sc); 496 if (std == NULL || sqh == NULL) 497 return (USBD_NOMEM); 498 std->link.sqh = sqh; 499 std->td.td_link = htole32(sqh->physaddr | UHCI_PTR_QH); 500 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 501 std->td.td_token = htole32(0); 502 std->td.td_buffer = htole32(0); 503 sqh->hlink = clsqh; 504 sqh->qh.qh_hlink = htole32(clsqh->physaddr | UHCI_PTR_QH); 505 sqh->elink = NULL; 506 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 507 sc->sc_vframes[i].htd = std; 508 sc->sc_vframes[i].etd = std; 509 sc->sc_vframes[i].hqh = sqh; 510 sc->sc_vframes[i].eqh = sqh; 511 for (j = i; 512 j < UHCI_FRAMELIST_COUNT; 513 j += UHCI_VFRAMELIST_COUNT) 514 sc->sc_pframes[j] = htole32(std->physaddr); 515 } 516 517 LIST_INIT(&sc->sc_intrhead); 518 519 SIMPLEQ_INIT(&sc->sc_free_xfers); 520 521 usb_callout_init(sc->sc_poll_handle); 522 523 /* Set up the bus struct. */ 524 sc->sc_bus.methods = &uhci_bus_methods; 525 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 526 527 #if defined(__NetBSD__) || defined(__OpenBSD__) 528 sc->sc_suspend = PWR_RESUME; 529 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 530 sc->sc_shutdownhook = shutdownhook_establish(uhci_shutdown, sc); 531 #endif 532 533 DPRINTFN(1,("uhci_init: enabling\n")); 534 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 535 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 536 537 UHCICMD(sc, UHCI_CMD_MAXP); /* Assume 64 byte packets at frame end */ 538 539 return (uhci_run(sc, 1)); /* and here we go... */ 540 } 541 542 #if defined(__NetBSD__) || defined(__OpenBSD__) 543 int 544 uhci_activate(device_ptr_t self, enum devact act) 545 { 546 struct uhci_softc *sc = (struct uhci_softc *)self; 547 int rv = 0; 548 549 switch (act) { 550 case DVACT_ACTIVATE: 551 return (EOPNOTSUPP); 552 553 case DVACT_DEACTIVATE: 554 if (sc->sc_child != NULL) 555 rv = config_deactivate(sc->sc_child); 556 break; 557 } 558 return (rv); 559 } 560 561 int 562 uhci_detach(struct uhci_softc *sc, int flags) 563 { 564 usbd_xfer_handle xfer; 565 int rv = 0; 566 567 if (sc->sc_child != NULL) 568 rv = config_detach(sc->sc_child, flags); 569 570 if (rv != 0) 571 return (rv); 572 573 #if defined(__NetBSD__) || defined(__OpenBSD__) 574 powerhook_disestablish(sc->sc_powerhook); 575 shutdownhook_disestablish(sc->sc_shutdownhook); 576 #endif 577 578 /* Free all xfers associated with this HC. */ 579 for (;;) { 580 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 581 if (xfer == NULL) 582 break; 583 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 584 free(xfer, M_USB); 585 } 586 587 /* XXX free other data structures XXX */ 588 589 return (rv); 590 } 591 #endif 592 593 usbd_status 594 uhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size) 595 { 596 struct uhci_softc *sc = (struct uhci_softc *)bus; 597 usbd_status status; 598 u_int32_t n; 599 600 /* 601 * XXX 602 * Since we are allocating a buffer we can assume that we will 603 * need TDs for it. Since we don't want to allocate those from 604 * an interrupt context, we allocate them here and free them again. 605 * This is no guarantee that we'll get the TDs next time... 606 */ 607 n = size / 8; 608 if (n > 16) { 609 u_int32_t i; 610 uhci_soft_td_t **stds; 611 DPRINTF(("uhci_allocm: get %d TDs\n", n)); 612 stds = malloc(sizeof(uhci_soft_td_t *) * n, M_TEMP, 613 M_WAITOK|M_ZERO); 614 for(i=0; i < n; i++) 615 stds[i] = uhci_alloc_std(sc); 616 for(i=0; i < n; i++) 617 if (stds[i] != NULL) 618 uhci_free_std(sc, stds[i]); 619 free(stds, M_TEMP); 620 } 621 622 623 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 624 #ifdef __NetBSD__ 625 if (status == USBD_NOMEM) 626 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 627 #endif 628 return status; 629 } 630 631 void 632 uhci_freem(struct usbd_bus *bus, usb_dma_t *dma) 633 { 634 #ifdef __NetBSD__ 635 if (dma->block->flags & USB_DMA_RESERVE) { 636 usb_reserve_freem(&((struct uhci_softc *)bus)->sc_dma_reserve, 637 dma); 638 return; 639 } 640 #endif 641 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 642 } 643 644 usbd_xfer_handle 645 uhci_allocx(struct usbd_bus *bus) 646 { 647 struct uhci_softc *sc = (struct uhci_softc *)bus; 648 usbd_xfer_handle xfer; 649 650 xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers); 651 if (xfer != NULL) { 652 SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next); 653 #ifdef DIAGNOSTIC 654 if (xfer->busy_free != XFER_FREE) { 655 printf("uhci_allocx: xfer=%p not free, 0x%08x\n", xfer, 656 xfer->busy_free); 657 } 658 #endif 659 } else { 660 xfer = malloc(sizeof(struct uhci_xfer), M_USB, M_NOWAIT); 661 } 662 if (xfer != NULL) { 663 memset(xfer, 0, sizeof (struct uhci_xfer)); 664 UXFER(xfer)->iinfo.sc = sc; 665 #ifdef DIAGNOSTIC 666 UXFER(xfer)->iinfo.isdone = 1; 667 xfer->busy_free = XFER_BUSY; 668 #endif 669 } 670 return (xfer); 671 } 672 673 void 674 uhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 675 { 676 struct uhci_softc *sc = (struct uhci_softc *)bus; 677 678 #ifdef DIAGNOSTIC 679 if (xfer->busy_free != XFER_BUSY) { 680 printf("uhci_freex: xfer=%p not busy, 0x%08x\n", xfer, 681 xfer->busy_free); 682 return; 683 } 684 xfer->busy_free = XFER_FREE; 685 if (!UXFER(xfer)->iinfo.isdone) { 686 printf("uhci_freex: !isdone\n"); 687 return; 688 } 689 #endif 690 SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next); 691 } 692 693 /* 694 * Shut down the controller when the system is going down. 695 */ 696 void 697 uhci_shutdown(void *v) 698 { 699 uhci_softc_t *sc = v; 700 701 DPRINTF(("uhci_shutdown: stopping the HC\n")); 702 uhci_run(sc, 0); /* stop the controller */ 703 } 704 705 /* 706 * Handle suspend/resume. 707 * 708 * We need to switch to polling mode here, because this routine is 709 * called from an interrupt context. This is all right since we 710 * are almost suspended anyway. 711 */ 712 void 713 uhci_power(int why, void *v) 714 { 715 uhci_softc_t *sc = v; 716 int cmd; 717 int s; 718 719 s = splhardusb(); 720 cmd = UREAD2(sc, UHCI_CMD); 721 722 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 723 sc, why, sc->sc_suspend, cmd)); 724 725 switch (why) { 726 case PWR_SUSPEND: 727 case PWR_STANDBY: 728 #ifdef UHCI_DEBUG 729 if (uhcidebug > 2) 730 uhci_dumpregs(sc); 731 #endif 732 if (sc->sc_intr_xfer != NULL) 733 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, 734 sc->sc_intr_xfer); 735 sc->sc_bus.use_polling++; 736 uhci_run(sc, 0); /* stop the controller */ 737 738 /* save some state if BIOS doesn't */ 739 sc->sc_saved_frnum = UREAD2(sc, UHCI_FRNUM); 740 sc->sc_saved_sof = UREAD1(sc, UHCI_SOF); 741 742 UWRITE2(sc, UHCI_INTR, 0); /* disable intrs */ 743 744 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 745 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 746 sc->sc_suspend = why; 747 sc->sc_bus.use_polling--; 748 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 749 break; 750 case PWR_RESUME: 751 #ifdef DIAGNOSTIC 752 if (sc->sc_suspend == PWR_RESUME) 753 printf("uhci_power: weird, resume without suspend.\n"); 754 #endif 755 sc->sc_bus.use_polling++; 756 sc->sc_suspend = why; 757 if (cmd & UHCI_CMD_RS) 758 uhci_run(sc, 0); /* in case BIOS has started it */ 759 760 /* restore saved state */ 761 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); 762 UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); 763 UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); 764 765 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 766 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 767 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 768 UHCICMD(sc, UHCI_CMD_MAXP); 769 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 770 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 771 uhci_run(sc, 1); /* and start traffic again */ 772 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 773 sc->sc_bus.use_polling--; 774 if (sc->sc_intr_xfer != NULL) 775 usb_callout(sc->sc_poll_handle, sc->sc_ival, 776 uhci_poll_hub, sc->sc_intr_xfer); 777 #ifdef UHCI_DEBUG 778 if (uhcidebug > 2) 779 uhci_dumpregs(sc); 780 #endif 781 break; 782 case PWR_SOFTSUSPEND: 783 case PWR_SOFTSTANDBY: 784 case PWR_SOFTRESUME: 785 break; 786 } 787 splx(s); 788 } 789 790 #ifdef UHCI_DEBUG 791 Static void 792 uhci_dumpregs(uhci_softc_t *sc) 793 { 794 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 795 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 796 USBDEVNAME(sc->sc_bus.bdev), 797 UREAD2(sc, UHCI_CMD), 798 UREAD2(sc, UHCI_STS), 799 UREAD2(sc, UHCI_INTR), 800 UREAD2(sc, UHCI_FRNUM), 801 UREAD4(sc, UHCI_FLBASEADDR), 802 UREAD1(sc, UHCI_SOF), 803 UREAD2(sc, UHCI_PORTSC1), 804 UREAD2(sc, UHCI_PORTSC2))); 805 } 806 807 void 808 uhci_dump_td(uhci_soft_td_t *p) 809 { 810 char sbuf[128], sbuf2[128]; 811 812 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 813 "token=0x%08lx buffer=0x%08lx\n", 814 p, (long)p->physaddr, 815 (long)le32toh(p->td.td_link), 816 (long)le32toh(p->td.td_status), 817 (long)le32toh(p->td.td_token), 818 (long)le32toh(p->td.td_buffer))); 819 820 bitmask_snprintf((u_int32_t)le32toh(p->td.td_link), "\20\1T\2Q\3VF", 821 sbuf, sizeof(sbuf)); 822 bitmask_snprintf((u_int32_t)le32toh(p->td.td_status), 823 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 824 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 825 sbuf2, sizeof(sbuf2)); 826 827 DPRINTFN(-1,(" %s %s,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 828 "D=%d,maxlen=%d\n", sbuf, sbuf2, 829 UHCI_TD_GET_ERRCNT(le32toh(p->td.td_status)), 830 UHCI_TD_GET_ACTLEN(le32toh(p->td.td_status)), 831 UHCI_TD_GET_PID(le32toh(p->td.td_token)), 832 UHCI_TD_GET_DEVADDR(le32toh(p->td.td_token)), 833 UHCI_TD_GET_ENDPT(le32toh(p->td.td_token)), 834 UHCI_TD_GET_DT(le32toh(p->td.td_token)), 835 UHCI_TD_GET_MAXLEN(le32toh(p->td.td_token)))); 836 } 837 838 void 839 uhci_dump_qh(uhci_soft_qh_t *sqh) 840 { 841 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 842 (int)sqh->physaddr, le32toh(sqh->qh.qh_hlink), 843 le32toh(sqh->qh.qh_elink))); 844 } 845 846 847 #if 1 848 void 849 uhci_dump(void) 850 { 851 uhci_dump_all(thesc); 852 } 853 #endif 854 855 void 856 uhci_dump_all(uhci_softc_t *sc) 857 { 858 uhci_dumpregs(sc); 859 printf("intrs=%d\n", sc->sc_bus.no_intrs); 860 /*printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link);*/ 861 uhci_dump_qh(sc->sc_lctl_start); 862 } 863 864 865 void 866 uhci_dump_qhs(uhci_soft_qh_t *sqh) 867 { 868 uhci_dump_qh(sqh); 869 870 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 871 * Traverses sideways first, then down. 872 * 873 * QH1 874 * QH2 875 * No QH 876 * TD2.1 877 * TD2.2 878 * TD1.1 879 * etc. 880 * 881 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 882 */ 883 884 885 if (sqh->hlink != NULL && !(le32toh(sqh->qh.qh_hlink) & UHCI_PTR_T)) 886 uhci_dump_qhs(sqh->hlink); 887 else 888 DPRINTF(("No QH\n")); 889 890 if (sqh->elink != NULL && !(le32toh(sqh->qh.qh_elink) & UHCI_PTR_T)) 891 uhci_dump_tds(sqh->elink); 892 else 893 DPRINTF(("No TD\n")); 894 } 895 896 void 897 uhci_dump_tds(uhci_soft_td_t *std) 898 { 899 uhci_soft_td_t *td; 900 901 for(td = std; td != NULL; td = td->link.std) { 902 uhci_dump_td(td); 903 904 /* Check whether the link pointer in this TD marks 905 * the link pointer as end of queue. This avoids 906 * printing the free list in case the queue/TD has 907 * already been moved there (seatbelt). 908 */ 909 if (le32toh(td->td.td_link) & UHCI_PTR_T || 910 le32toh(td->td.td_link) == 0) 911 break; 912 } 913 } 914 915 Static void 916 uhci_dump_ii(uhci_intr_info_t *ii) 917 { 918 usbd_pipe_handle pipe; 919 usb_endpoint_descriptor_t *ed; 920 usbd_device_handle dev; 921 922 #ifdef DIAGNOSTIC 923 #define DONE ii->isdone 924 #else 925 #define DONE 0 926 #endif 927 if (ii == NULL) { 928 printf("ii NULL\n"); 929 return; 930 } 931 if (ii->xfer == NULL) { 932 printf("ii %p: done=%d xfer=NULL\n", 933 ii, DONE); 934 return; 935 } 936 pipe = ii->xfer->pipe; 937 if (pipe == NULL) { 938 printf("ii %p: done=%d xfer=%p pipe=NULL\n", 939 ii, DONE, ii->xfer); 940 return; 941 } 942 if (pipe->endpoint == NULL) { 943 printf("ii %p: done=%d xfer=%p pipe=%p pipe->endpoint=NULL\n", 944 ii, DONE, ii->xfer, pipe); 945 return; 946 } 947 if (pipe->device == NULL) { 948 printf("ii %p: done=%d xfer=%p pipe=%p pipe->device=NULL\n", 949 ii, DONE, ii->xfer, pipe); 950 return; 951 } 952 ed = pipe->endpoint->edesc; 953 dev = pipe->device; 954 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", 955 ii, DONE, ii->xfer, dev, 956 UGETW(dev->ddesc.idVendor), 957 UGETW(dev->ddesc.idProduct), 958 dev->address, pipe, 959 ed->bEndpointAddress, ed->bmAttributes); 960 #undef DONE 961 } 962 963 void uhci_dump_iis(struct uhci_softc *sc); 964 void 965 uhci_dump_iis(struct uhci_softc *sc) 966 { 967 uhci_intr_info_t *ii; 968 969 printf("intr_info list:\n"); 970 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 971 uhci_dump_ii(ii); 972 } 973 974 void iidump(void); 975 void iidump(void) { uhci_dump_iis(thesc); } 976 977 #endif 978 979 /* 980 * This routine is executed periodically and simulates interrupts 981 * from the root controller interrupt pipe for port status change. 982 */ 983 void 984 uhci_poll_hub(void *addr) 985 { 986 usbd_xfer_handle xfer = addr; 987 usbd_pipe_handle pipe = xfer->pipe; 988 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 989 int s; 990 u_char *p; 991 992 DPRINTFN(20, ("uhci_poll_hub\n")); 993 994 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 995 996 p = KERNADDR(&xfer->dmabuf, 0); 997 p[0] = 0; 998 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 999 p[0] |= 1<<1; 1000 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 1001 p[0] |= 1<<2; 1002 if (p[0] == 0) 1003 /* No change, try again in a while */ 1004 return; 1005 1006 xfer->actlen = 1; 1007 xfer->status = USBD_NORMAL_COMPLETION; 1008 s = splusb(); 1009 xfer->device->bus->intr_context++; 1010 usb_transfer_complete(xfer); 1011 xfer->device->bus->intr_context--; 1012 splx(s); 1013 } 1014 1015 void 1016 uhci_root_intr_done(usbd_xfer_handle xfer) 1017 { 1018 } 1019 1020 void 1021 uhci_root_ctrl_done(usbd_xfer_handle xfer) 1022 { 1023 } 1024 1025 /* 1026 * Let the last QH loop back to the high speed control transfer QH. 1027 * This is what intel calls "bandwidth reclamation" and improves 1028 * USB performance a lot for some devices. 1029 * If we are already looping, just count it. 1030 */ 1031 void 1032 uhci_add_loop(uhci_softc_t *sc) { 1033 #ifdef UHCI_DEBUG 1034 if (uhcinoloop) 1035 return; 1036 #endif 1037 if (++sc->sc_loops == 1) { 1038 DPRINTFN(5,("uhci_start_loop: add\n")); 1039 /* Note, we don't loop back the soft pointer. */ 1040 sc->sc_last_qh->qh.qh_hlink = 1041 htole32(sc->sc_hctl_start->physaddr | UHCI_PTR_QH); 1042 } 1043 } 1044 1045 void 1046 uhci_rem_loop(uhci_softc_t *sc) { 1047 #ifdef UHCI_DEBUG 1048 if (uhcinoloop) 1049 return; 1050 #endif 1051 if (--sc->sc_loops == 0) { 1052 DPRINTFN(5,("uhci_end_loop: remove\n")); 1053 sc->sc_last_qh->qh.qh_hlink = htole32(UHCI_PTR_T); 1054 } 1055 } 1056 1057 /* Add high speed control QH, called at splusb(). */ 1058 void 1059 uhci_add_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1060 { 1061 uhci_soft_qh_t *eqh; 1062 1063 SPLUSBCHECK; 1064 1065 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 1066 eqh = sc->sc_hctl_end; 1067 sqh->hlink = eqh->hlink; 1068 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1069 eqh->hlink = sqh; 1070 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1071 sc->sc_hctl_end = sqh; 1072 #ifdef UHCI_CTL_LOOP 1073 uhci_add_loop(sc); 1074 #endif 1075 } 1076 1077 /* Remove high speed control QH, called at splusb(). */ 1078 void 1079 uhci_remove_hs_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1080 { 1081 uhci_soft_qh_t *pqh; 1082 1083 SPLUSBCHECK; 1084 1085 DPRINTFN(10, ("uhci_remove_hs_ctrl: sqh=%p\n", sqh)); 1086 #ifdef UHCI_CTL_LOOP 1087 uhci_rem_loop(sc); 1088 #endif 1089 /* 1090 * The T bit should be set in the elink of the QH so that the HC 1091 * doesn't follow the pointer. This condition may fail if the 1092 * the transferred packet was short so that the QH still points 1093 * at the last used TD. 1094 * In this case we set the T bit and wait a little for the HC 1095 * to stop looking at the TD. 1096 */ 1097 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1098 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1099 delay(UHCI_QH_REMOVE_DELAY); 1100 } 1101 1102 pqh = uhci_find_prev_qh(sc->sc_hctl_start, sqh); 1103 pqh->hlink = sqh->hlink; 1104 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1105 delay(UHCI_QH_REMOVE_DELAY); 1106 if (sc->sc_hctl_end == sqh) 1107 sc->sc_hctl_end = pqh; 1108 } 1109 1110 /* Add low speed control QH, called at splusb(). */ 1111 void 1112 uhci_add_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1113 { 1114 uhci_soft_qh_t *eqh; 1115 1116 SPLUSBCHECK; 1117 1118 DPRINTFN(10, ("uhci_add_ls_ctrl: sqh=%p\n", sqh)); 1119 eqh = sc->sc_lctl_end; 1120 sqh->hlink = eqh->hlink; 1121 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1122 eqh->hlink = sqh; 1123 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1124 sc->sc_lctl_end = sqh; 1125 } 1126 1127 /* Remove low speed control QH, called at splusb(). */ 1128 void 1129 uhci_remove_ls_ctrl(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1130 { 1131 uhci_soft_qh_t *pqh; 1132 1133 SPLUSBCHECK; 1134 1135 DPRINTFN(10, ("uhci_remove_ls_ctrl: sqh=%p\n", sqh)); 1136 /* See comment in uhci_remove_hs_ctrl() */ 1137 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1138 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1139 delay(UHCI_QH_REMOVE_DELAY); 1140 } 1141 pqh = uhci_find_prev_qh(sc->sc_lctl_start, sqh); 1142 pqh->hlink = sqh->hlink; 1143 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1144 delay(UHCI_QH_REMOVE_DELAY); 1145 if (sc->sc_lctl_end == sqh) 1146 sc->sc_lctl_end = pqh; 1147 } 1148 1149 /* Add bulk QH, called at splusb(). */ 1150 void 1151 uhci_add_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1152 { 1153 uhci_soft_qh_t *eqh; 1154 1155 SPLUSBCHECK; 1156 1157 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 1158 eqh = sc->sc_bulk_end; 1159 sqh->hlink = eqh->hlink; 1160 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 1161 eqh->hlink = sqh; 1162 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 1163 sc->sc_bulk_end = sqh; 1164 uhci_add_loop(sc); 1165 } 1166 1167 /* Remove bulk QH, called at splusb(). */ 1168 void 1169 uhci_remove_bulk(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1170 { 1171 uhci_soft_qh_t *pqh; 1172 1173 SPLUSBCHECK; 1174 1175 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 1176 uhci_rem_loop(sc); 1177 /* See comment in uhci_remove_hs_ctrl() */ 1178 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 1179 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 1180 delay(UHCI_QH_REMOVE_DELAY); 1181 } 1182 pqh = uhci_find_prev_qh(sc->sc_bulk_start, sqh); 1183 pqh->hlink = sqh->hlink; 1184 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 1185 delay(UHCI_QH_REMOVE_DELAY); 1186 if (sc->sc_bulk_end == sqh) 1187 sc->sc_bulk_end = pqh; 1188 } 1189 1190 Static int uhci_intr1(uhci_softc_t *); 1191 1192 int 1193 uhci_intr(void *arg) 1194 { 1195 uhci_softc_t *sc = arg; 1196 1197 if (sc->sc_dying) 1198 return (0); 1199 1200 if (sc->sc_bus.use_polling) { 1201 #ifdef DIAGNOSTIC 1202 DPRINTFN(16, ("uhci_intr: ignored interrupt while polling\n")); 1203 #endif 1204 return (0); 1205 } 1206 1207 return (uhci_intr1(sc)); 1208 } 1209 1210 int 1211 uhci_intr1(uhci_softc_t *sc) 1212 { 1213 int status; 1214 int ack; 1215 1216 #ifdef UHCI_DEBUG 1217 if (uhcidebug > 15) { 1218 DPRINTF(("%s: uhci_intr1\n", USBDEVNAME(sc->sc_bus.bdev))); 1219 uhci_dumpregs(sc); 1220 } 1221 #endif 1222 1223 status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS; 1224 if (status == 0) /* The interrupt was not for us. */ 1225 return (0); 1226 1227 if (sc->sc_suspend != PWR_RESUME) { 1228 printf("%s: interrupt while not operating ignored\n", 1229 USBDEVNAME(sc->sc_bus.bdev)); 1230 UWRITE2(sc, UHCI_STS, status); /* acknowledge the ints */ 1231 return (0); 1232 } 1233 1234 ack = 0; 1235 if (status & UHCI_STS_USBINT) 1236 ack |= UHCI_STS_USBINT; 1237 if (status & UHCI_STS_USBEI) 1238 ack |= UHCI_STS_USBEI; 1239 if (status & UHCI_STS_RD) { 1240 ack |= UHCI_STS_RD; 1241 #ifdef UHCI_DEBUG 1242 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 1243 #endif 1244 } 1245 if (status & UHCI_STS_HSE) { 1246 ack |= UHCI_STS_HSE; 1247 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 1248 } 1249 if (status & UHCI_STS_HCPE) { 1250 ack |= UHCI_STS_HCPE; 1251 printf("%s: host controller process error\n", 1252 USBDEVNAME(sc->sc_bus.bdev)); 1253 } 1254 if (status & UHCI_STS_HCH) { 1255 /* no acknowledge needed */ 1256 if (!sc->sc_dying) { 1257 printf("%s: host controller halted\n", 1258 USBDEVNAME(sc->sc_bus.bdev)); 1259 #ifdef UHCI_DEBUG 1260 uhci_dump_all(sc); 1261 #endif 1262 } 1263 sc->sc_dying = 1; 1264 } 1265 1266 if (!ack) 1267 return (0); /* nothing to acknowledge */ 1268 UWRITE2(sc, UHCI_STS, ack); /* acknowledge the ints */ 1269 1270 sc->sc_bus.no_intrs++; 1271 usb_schedsoftintr(&sc->sc_bus); 1272 1273 DPRINTFN(15, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 1274 1275 return (1); 1276 } 1277 1278 void 1279 uhci_softintr(void *v) 1280 { 1281 uhci_softc_t *sc = v; 1282 uhci_intr_info_t *ii, *nextii; 1283 1284 DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev), 1285 sc->sc_bus.intr_context)); 1286 1287 sc->sc_bus.intr_context++; 1288 1289 /* 1290 * Interrupts on UHCI really suck. When the host controller 1291 * interrupts because a transfer is completed there is no 1292 * way of knowing which transfer it was. You can scan down 1293 * the TDs and QHs of the previous frame to limit the search, 1294 * but that assumes that the interrupt was not delayed by more 1295 * than 1 ms, which may not always be true (e.g. after debug 1296 * output on a slow console). 1297 * We scan all interrupt descriptors to see if any have 1298 * completed. 1299 */ 1300 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) { 1301 nextii = LIST_NEXT(ii, list); 1302 uhci_check_intr(sc, ii); 1303 } 1304 1305 #ifdef USB_USE_SOFTINTR 1306 if (sc->sc_softwake) { 1307 sc->sc_softwake = 0; 1308 wakeup(&sc->sc_softwake); 1309 } 1310 #endif /* USB_USE_SOFTINTR */ 1311 1312 sc->sc_bus.intr_context--; 1313 } 1314 1315 /* Check for an interrupt. */ 1316 void 1317 uhci_check_intr(uhci_softc_t *sc, uhci_intr_info_t *ii) 1318 { 1319 uhci_soft_td_t *std, *lstd; 1320 u_int32_t status; 1321 1322 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 1323 #ifdef DIAGNOSTIC 1324 if (ii == NULL) { 1325 printf("uhci_check_intr: no ii? %p\n", ii); 1326 return; 1327 } 1328 #endif 1329 if (ii->xfer->status == USBD_CANCELLED || 1330 ii->xfer->status == USBD_TIMEOUT) { 1331 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer)); 1332 return; 1333 } 1334 1335 if (ii->stdstart == NULL) 1336 return; 1337 lstd = ii->stdend; 1338 #ifdef DIAGNOSTIC 1339 if (lstd == NULL) { 1340 printf("uhci_check_intr: std==0\n"); 1341 return; 1342 } 1343 #endif 1344 /* 1345 * If the last TD is still active we need to check whether there 1346 * is a an error somewhere in the middle, or whether there was a 1347 * short packet (SPD and not ACTIVE). 1348 */ 1349 if (le32toh(lstd->td.td_status) & UHCI_TD_ACTIVE) { 1350 DPRINTFN(12, ("uhci_check_intr: active ii=%p\n", ii)); 1351 for (std = ii->stdstart; std != lstd; std = std->link.std) { 1352 status = le32toh(std->td.td_status); 1353 /* If there's an active TD the xfer isn't done. */ 1354 if (status & UHCI_TD_ACTIVE) 1355 break; 1356 /* Any kind of error makes the xfer done. */ 1357 if (status & UHCI_TD_STALLED) 1358 goto done; 1359 /* We want short packets, and it is short: it's done */ 1360 if ((status & UHCI_TD_SPD) && 1361 UHCI_TD_GET_ACTLEN(status) < 1362 UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token))) 1363 goto done; 1364 } 1365 DPRINTFN(12, ("uhci_check_intr: ii=%p std=%p still active\n", 1366 ii, ii->stdstart)); 1367 return; 1368 } 1369 done: 1370 DPRINTFN(12, ("uhci_check_intr: ii=%p done\n", ii)); 1371 usb_uncallout(ii->xfer->timeout_handle, uhci_timeout, ii); 1372 uhci_idone(ii); 1373 } 1374 1375 /* Called at splusb() */ 1376 void 1377 uhci_idone(uhci_intr_info_t *ii) 1378 { 1379 usbd_xfer_handle xfer = ii->xfer; 1380 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1381 uhci_soft_td_t *std; 1382 u_int32_t status = 0, nstatus; 1383 int actlen; 1384 1385 DPRINTFN(12, ("uhci_idone: ii=%p\n", ii)); 1386 #ifdef DIAGNOSTIC 1387 { 1388 int s = splhigh(); 1389 if (ii->isdone) { 1390 splx(s); 1391 #ifdef UHCI_DEBUG 1392 printf("uhci_idone: ii is done!\n "); 1393 uhci_dump_ii(ii); 1394 #else 1395 printf("uhci_idone: ii=%p is done!\n", ii); 1396 #endif 1397 return; 1398 } 1399 ii->isdone = 1; 1400 splx(s); 1401 } 1402 #endif 1403 1404 if (xfer->nframes != 0) { 1405 /* Isoc transfer, do things differently. */ 1406 uhci_soft_td_t **stds = upipe->u.iso.stds; 1407 int i, n, nframes, len; 1408 1409 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1410 1411 nframes = xfer->nframes; 1412 actlen = 0; 1413 n = UXFER(xfer)->curframe; 1414 for (i = 0; i < nframes; i++) { 1415 std = stds[n]; 1416 #ifdef UHCI_DEBUG 1417 if (uhcidebug > 5) { 1418 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1419 uhci_dump_td(std); 1420 } 1421 #endif 1422 if (++n >= UHCI_VFRAMELIST_COUNT) 1423 n = 0; 1424 status = le32toh(std->td.td_status); 1425 len = UHCI_TD_GET_ACTLEN(status); 1426 xfer->frlengths[i] = len; 1427 actlen += len; 1428 } 1429 upipe->u.iso.inuse -= nframes; 1430 xfer->actlen = actlen; 1431 xfer->status = USBD_NORMAL_COMPLETION; 1432 goto end; 1433 } 1434 1435 #ifdef UHCI_DEBUG 1436 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1437 ii, xfer, upipe)); 1438 if (uhcidebug > 10) 1439 uhci_dump_tds(ii->stdstart); 1440 #endif 1441 1442 /* The transfer is done, compute actual length and status. */ 1443 actlen = 0; 1444 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1445 nstatus = le32toh(std->td.td_status); 1446 if (nstatus & UHCI_TD_ACTIVE) 1447 break; 1448 1449 status = nstatus; 1450 if (UHCI_TD_GET_PID(le32toh(std->td.td_token)) != 1451 UHCI_TD_PID_SETUP) 1452 actlen += UHCI_TD_GET_ACTLEN(status); 1453 else { 1454 /* 1455 * UHCI will report CRCTO in addition to a STALL or NAK 1456 * for a SETUP transaction. See section 3.2.2, "TD 1457 * CONTROL AND STATUS". 1458 */ 1459 if (status & (UHCI_TD_STALLED | UHCI_TD_NAK)) 1460 status &= ~UHCI_TD_CRCTO; 1461 } 1462 } 1463 /* If there are left over TDs we need to update the toggle. */ 1464 if (std != NULL) 1465 upipe->nexttoggle = UHCI_TD_GET_DT(le32toh(std->td.td_token)); 1466 1467 status &= UHCI_TD_ERROR; 1468 DPRINTFN(10, ("uhci_idone: actlen=%d, status=0x%x\n", 1469 actlen, status)); 1470 xfer->actlen = actlen; 1471 if (status != 0) { 1472 #ifdef UHCI_DEBUG 1473 char sbuf[128]; 1474 1475 bitmask_snprintf((u_int32_t)status, 1476 "\20\22BITSTUFF\23CRCTO\24NAK\25" 1477 "BABBLE\26DBUFFER\27STALLED\30ACTIVE", 1478 sbuf, sizeof(sbuf)); 1479 1480 DPRINTFN((status == UHCI_TD_STALLED)*10, 1481 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1482 "status 0x%s\n", 1483 xfer->pipe->device->address, 1484 xfer->pipe->endpoint->edesc->bEndpointAddress, 1485 sbuf)); 1486 #endif 1487 1488 if (status == UHCI_TD_STALLED) 1489 xfer->status = USBD_STALLED; 1490 else 1491 xfer->status = USBD_IOERROR; /* more info XXX */ 1492 } else { 1493 xfer->status = USBD_NORMAL_COMPLETION; 1494 } 1495 1496 end: 1497 usb_transfer_complete(xfer); 1498 DPRINTFN(12, ("uhci_idone: ii=%p done\n", ii)); 1499 } 1500 1501 /* 1502 * Called when a request does not complete. 1503 */ 1504 void 1505 uhci_timeout(void *addr) 1506 { 1507 uhci_intr_info_t *ii = addr; 1508 struct uhci_xfer *uxfer = UXFER(ii->xfer); 1509 struct uhci_pipe *upipe = (struct uhci_pipe *)uxfer->xfer.pipe; 1510 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1511 1512 DPRINTF(("uhci_timeout: uxfer=%p\n", uxfer)); 1513 1514 if (sc->sc_dying) { 1515 uhci_abort_xfer(&uxfer->xfer, USBD_TIMEOUT); 1516 return; 1517 } 1518 1519 /* Execute the abort in a process context. */ 1520 usb_init_task(&uxfer->abort_task, uhci_timeout_task, ii->xfer); 1521 usb_add_task(uxfer->xfer.pipe->device, &uxfer->abort_task); 1522 } 1523 1524 void 1525 uhci_timeout_task(void *addr) 1526 { 1527 usbd_xfer_handle xfer = addr; 1528 int s; 1529 1530 DPRINTF(("uhci_timeout_task: xfer=%p\n", xfer)); 1531 1532 s = splusb(); 1533 uhci_abort_xfer(xfer, USBD_TIMEOUT); 1534 splx(s); 1535 } 1536 1537 /* 1538 * Wait here until controller claims to have an interrupt. 1539 * Then call uhci_intr and return. Use timeout to avoid waiting 1540 * too long. 1541 * Only used during boot when interrupts are not enabled yet. 1542 */ 1543 void 1544 uhci_waitintr(uhci_softc_t *sc, usbd_xfer_handle xfer) 1545 { 1546 int timo = xfer->timeout; 1547 uhci_intr_info_t *ii; 1548 1549 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1550 1551 xfer->status = USBD_IN_PROGRESS; 1552 for (; timo >= 0; timo--) { 1553 usb_delay_ms(&sc->sc_bus, 1); 1554 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1555 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1556 uhci_intr1(sc); 1557 if (xfer->status != USBD_IN_PROGRESS) 1558 return; 1559 } 1560 } 1561 1562 /* Timeout */ 1563 DPRINTF(("uhci_waitintr: timeout\n")); 1564 for (ii = LIST_FIRST(&sc->sc_intrhead); 1565 ii != NULL && ii->xfer != xfer; 1566 ii = LIST_NEXT(ii, list)) 1567 ; 1568 #ifdef DIAGNOSTIC 1569 if (ii == NULL) 1570 panic("uhci_waitintr: lost intr_info"); 1571 #endif 1572 uhci_idone(ii); 1573 } 1574 1575 void 1576 uhci_poll(struct usbd_bus *bus) 1577 { 1578 uhci_softc_t *sc = (uhci_softc_t *)bus; 1579 1580 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1581 uhci_intr1(sc); 1582 } 1583 1584 void 1585 uhci_reset(uhci_softc_t *sc) 1586 { 1587 int n; 1588 1589 UHCICMD(sc, UHCI_CMD_HCRESET); 1590 /* The reset bit goes low when the controller is done. */ 1591 for (n = 0; n < UHCI_RESET_TIMEOUT && 1592 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1593 usb_delay_ms(&sc->sc_bus, 1); 1594 if (n >= UHCI_RESET_TIMEOUT) 1595 printf("%s: controller did not reset\n", 1596 USBDEVNAME(sc->sc_bus.bdev)); 1597 } 1598 1599 usbd_status 1600 uhci_run(uhci_softc_t *sc, int run) 1601 { 1602 int s, n, running; 1603 u_int16_t cmd; 1604 1605 run = run != 0; 1606 s = splhardusb(); 1607 DPRINTF(("uhci_run: setting run=%d\n", run)); 1608 cmd = UREAD2(sc, UHCI_CMD); 1609 if (run) 1610 cmd |= UHCI_CMD_RS; 1611 else 1612 cmd &= ~UHCI_CMD_RS; 1613 UHCICMD(sc, cmd); 1614 for(n = 0; n < 10; n++) { 1615 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1616 /* return when we've entered the state we want */ 1617 if (run == running) { 1618 splx(s); 1619 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1620 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1621 return (USBD_NORMAL_COMPLETION); 1622 } 1623 usb_delay_ms(&sc->sc_bus, 1); 1624 } 1625 splx(s); 1626 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1627 run ? "start" : "stop"); 1628 return (USBD_IOERROR); 1629 } 1630 1631 /* 1632 * Memory management routines. 1633 * uhci_alloc_std allocates TDs 1634 * uhci_alloc_sqh allocates QHs 1635 * These two routines do their own free list management, 1636 * partly for speed, partly because allocating DMAable memory 1637 * has page size granularaity so much memory would be wasted if 1638 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1639 */ 1640 1641 uhci_soft_td_t * 1642 uhci_alloc_std(uhci_softc_t *sc) 1643 { 1644 uhci_soft_td_t *std; 1645 usbd_status err; 1646 int i, offs; 1647 usb_dma_t dma; 1648 1649 if (sc->sc_freetds == NULL) { 1650 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1651 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1652 UHCI_TD_ALIGN, &dma); 1653 if (err) 1654 return (0); 1655 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1656 offs = i * UHCI_STD_SIZE; 1657 std = KERNADDR(&dma, offs); 1658 std->physaddr = DMAADDR(&dma, offs); 1659 std->link.std = sc->sc_freetds; 1660 sc->sc_freetds = std; 1661 } 1662 } 1663 std = sc->sc_freetds; 1664 sc->sc_freetds = std->link.std; 1665 memset(&std->td, 0, sizeof(uhci_td_t)); 1666 return std; 1667 } 1668 1669 void 1670 uhci_free_std(uhci_softc_t *sc, uhci_soft_td_t *std) 1671 { 1672 #ifdef DIAGNOSTIC 1673 #define TD_IS_FREE 0x12345678 1674 if (le32toh(std->td.td_token) == TD_IS_FREE) { 1675 printf("uhci_free_std: freeing free TD %p\n", std); 1676 return; 1677 } 1678 std->td.td_token = htole32(TD_IS_FREE); 1679 #endif 1680 std->link.std = sc->sc_freetds; 1681 sc->sc_freetds = std; 1682 } 1683 1684 uhci_soft_qh_t * 1685 uhci_alloc_sqh(uhci_softc_t *sc) 1686 { 1687 uhci_soft_qh_t *sqh; 1688 usbd_status err; 1689 int i, offs; 1690 usb_dma_t dma; 1691 1692 if (sc->sc_freeqhs == NULL) { 1693 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1694 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1695 UHCI_QH_ALIGN, &dma); 1696 if (err) 1697 return (0); 1698 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1699 offs = i * UHCI_SQH_SIZE; 1700 sqh = KERNADDR(&dma, offs); 1701 sqh->physaddr = DMAADDR(&dma, offs); 1702 sqh->hlink = sc->sc_freeqhs; 1703 sc->sc_freeqhs = sqh; 1704 } 1705 } 1706 sqh = sc->sc_freeqhs; 1707 sc->sc_freeqhs = sqh->hlink; 1708 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1709 return (sqh); 1710 } 1711 1712 void 1713 uhci_free_sqh(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 1714 { 1715 sqh->hlink = sc->sc_freeqhs; 1716 sc->sc_freeqhs = sqh; 1717 } 1718 1719 void 1720 uhci_free_std_chain(uhci_softc_t *sc, uhci_soft_td_t *std, 1721 uhci_soft_td_t *stdend) 1722 { 1723 uhci_soft_td_t *p; 1724 1725 for (; std != stdend; std = p) { 1726 p = std->link.std; 1727 uhci_free_std(sc, std); 1728 } 1729 } 1730 1731 usbd_status 1732 uhci_alloc_std_chain(struct uhci_pipe *upipe, uhci_softc_t *sc, int len, 1733 int rd, u_int16_t flags, usb_dma_t *dma, 1734 uhci_soft_td_t **sp, uhci_soft_td_t **ep) 1735 { 1736 uhci_soft_td_t *p, *lastp; 1737 uhci_physaddr_t lastlink; 1738 int i, ntd, l, tog, maxp; 1739 u_int32_t status; 1740 int addr = upipe->pipe.device->address; 1741 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1742 1743 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d speed=%d " 1744 "flags=0x%x\n", addr, UE_GET_ADDR(endpt), len, 1745 upipe->pipe.device->speed, flags)); 1746 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1747 if (maxp == 0) { 1748 printf("uhci_alloc_std_chain: maxp=0\n"); 1749 return (USBD_INVAL); 1750 } 1751 ntd = (len + maxp - 1) / maxp; 1752 if ((flags & USBD_FORCE_SHORT_XFER) && len % maxp == 0) 1753 ntd++; 1754 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1755 if (ntd == 0) { 1756 *sp = *ep = 0; 1757 DPRINTFN(-1,("uhci_alloc_std_chain: ntd=0\n")); 1758 return (USBD_NORMAL_COMPLETION); 1759 } 1760 tog = upipe->nexttoggle; 1761 if (ntd % 2 == 0) 1762 tog ^= 1; 1763 upipe->nexttoggle = tog ^ 1; 1764 lastp = NULL; 1765 lastlink = UHCI_PTR_T; 1766 ntd--; 1767 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1768 if (upipe->pipe.device->speed == USB_SPEED_LOW) 1769 status |= UHCI_TD_LS; 1770 if (flags & USBD_SHORT_XFER_OK) 1771 status |= UHCI_TD_SPD; 1772 for (i = ntd; i >= 0; i--) { 1773 p = uhci_alloc_std(sc); 1774 if (p == NULL) { 1775 uhci_free_std_chain(sc, lastp, NULL); 1776 return (USBD_NOMEM); 1777 } 1778 p->link.std = lastp; 1779 p->td.td_link = htole32(lastlink | UHCI_PTR_VF | UHCI_PTR_TD); 1780 lastp = p; 1781 lastlink = p->physaddr; 1782 p->td.td_status = htole32(status); 1783 if (i == ntd) { 1784 /* last TD */ 1785 l = len % maxp; 1786 if (l == 0 && !(flags & USBD_FORCE_SHORT_XFER)) 1787 l = maxp; 1788 *ep = p; 1789 } else 1790 l = maxp; 1791 p->td.td_token = 1792 htole32(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1793 UHCI_TD_OUT(l, endpt, addr, tog)); 1794 p->td.td_buffer = htole32(DMAADDR(dma, i * maxp)); 1795 tog ^= 1; 1796 } 1797 *sp = lastp; 1798 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1799 upipe->nexttoggle)); 1800 return (USBD_NORMAL_COMPLETION); 1801 } 1802 1803 void 1804 uhci_device_clear_toggle(usbd_pipe_handle pipe) 1805 { 1806 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1807 upipe->nexttoggle = 0; 1808 } 1809 1810 void 1811 uhci_noop(usbd_pipe_handle pipe) 1812 { 1813 } 1814 1815 usbd_status 1816 uhci_device_bulk_transfer(usbd_xfer_handle xfer) 1817 { 1818 usbd_status err; 1819 1820 /* Insert last in queue. */ 1821 err = usb_insert_transfer(xfer); 1822 if (err) 1823 return (err); 1824 1825 /* 1826 * Pipe isn't running (otherwise err would be USBD_INPROG), 1827 * so start it first. 1828 */ 1829 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1830 } 1831 1832 usbd_status 1833 uhci_device_bulk_start(usbd_xfer_handle xfer) 1834 { 1835 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1836 usbd_device_handle dev = upipe->pipe.device; 1837 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1838 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1839 uhci_soft_td_t *data, *dataend; 1840 uhci_soft_qh_t *sqh; 1841 usbd_status err; 1842 int len, isread, endpt; 1843 int s; 1844 1845 DPRINTFN(3, ("uhci_device_bulk_start: xfer=%p len=%d flags=%d ii=%p\n", 1846 xfer, xfer->length, xfer->flags, ii)); 1847 1848 if (sc->sc_dying) 1849 return (USBD_IOERROR); 1850 1851 #ifdef DIAGNOSTIC 1852 if (xfer->rqflags & URQ_REQUEST) 1853 panic("uhci_device_bulk_transfer: a request"); 1854 #endif 1855 1856 len = xfer->length; 1857 endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1858 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1859 sqh = upipe->u.bulk.sqh; 1860 1861 upipe->u.bulk.isread = isread; 1862 upipe->u.bulk.length = len; 1863 1864 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 1865 &xfer->dmabuf, &data, &dataend); 1866 if (err) 1867 return (err); 1868 dataend->td.td_status |= htole32(UHCI_TD_IOC); 1869 1870 #ifdef UHCI_DEBUG 1871 if (uhcidebug > 8) { 1872 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1873 uhci_dump_tds(data); 1874 } 1875 #endif 1876 1877 /* Set up interrupt info. */ 1878 ii->xfer = xfer; 1879 ii->stdstart = data; 1880 ii->stdend = dataend; 1881 #ifdef DIAGNOSTIC 1882 if (!ii->isdone) { 1883 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1884 } 1885 ii->isdone = 0; 1886 #endif 1887 1888 sqh->elink = data; 1889 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 1890 1891 s = splusb(); 1892 uhci_add_bulk(sc, sqh); 1893 uhci_add_intr_info(sc, ii); 1894 1895 if (xfer->timeout && !sc->sc_bus.use_polling) { 1896 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 1897 uhci_timeout, ii); 1898 } 1899 xfer->status = USBD_IN_PROGRESS; 1900 splx(s); 1901 1902 #ifdef UHCI_DEBUG 1903 if (uhcidebug > 10) { 1904 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1905 uhci_dump_tds(data); 1906 } 1907 #endif 1908 1909 if (sc->sc_bus.use_polling) 1910 uhci_waitintr(sc, xfer); 1911 1912 return (USBD_IN_PROGRESS); 1913 } 1914 1915 /* Abort a device bulk request. */ 1916 void 1917 uhci_device_bulk_abort(usbd_xfer_handle xfer) 1918 { 1919 DPRINTF(("uhci_device_bulk_abort:\n")); 1920 uhci_abort_xfer(xfer, USBD_CANCELLED); 1921 } 1922 1923 /* 1924 * Abort a device request. 1925 * If this routine is called at splusb() it guarantees that the request 1926 * will be removed from the hardware scheduling and that the callback 1927 * for it will be called with USBD_CANCELLED status. 1928 * It's impossible to guarantee that the requested transfer will not 1929 * have happened since the hardware runs concurrently. 1930 * If the transaction has already happened we rely on the ordinary 1931 * interrupt processing to process it. 1932 */ 1933 void 1934 uhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 1935 { 1936 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 1937 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1938 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1939 uhci_soft_td_t *std; 1940 int s; 1941 1942 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1943 1944 if (sc->sc_dying) { 1945 /* If we're dying, just do the software part. */ 1946 s = splusb(); 1947 xfer->status = status; /* make software ignore it */ 1948 usb_uncallout(xfer->timeout_handle, uhci_timeout, xfer); 1949 usb_transfer_complete(xfer); 1950 splx(s); 1951 } 1952 1953 if (xfer->device->bus->intr_context || !curproc) 1954 panic("uhci_abort_xfer: not in process context"); 1955 1956 /* 1957 * Step 1: Make interrupt routine and hardware ignore xfer. 1958 */ 1959 s = splusb(); 1960 xfer->status = status; /* make software ignore it */ 1961 usb_uncallout(xfer->timeout_handle, uhci_timeout, ii); 1962 DPRINTFN(1,("uhci_abort_xfer: stop ii=%p\n", ii)); 1963 for (std = ii->stdstart; std != NULL; std = std->link.std) 1964 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1965 splx(s); 1966 1967 /* 1968 * Step 2: Wait until we know hardware has finished any possible 1969 * use of the xfer. Also make sure the soft interrupt routine 1970 * has run. 1971 */ 1972 usb_delay_ms(upipe->pipe.device->bus, 2); /* Hardware finishes in 1ms */ 1973 s = splusb(); 1974 #ifdef USB_USE_SOFTINTR 1975 sc->sc_softwake = 1; 1976 #endif /* USB_USE_SOFTINTR */ 1977 usb_schedsoftintr(&sc->sc_bus); 1978 #ifdef USB_USE_SOFTINTR 1979 DPRINTFN(1,("uhci_abort_xfer: tsleep\n")); 1980 tsleep(&sc->sc_softwake, PZERO, "uhciab", 0); 1981 #endif /* USB_USE_SOFTINTR */ 1982 splx(s); 1983 1984 /* 1985 * Step 3: Execute callback. 1986 */ 1987 xfer->hcpriv = ii; 1988 1989 DPRINTFN(1,("uhci_abort_xfer: callback\n")); 1990 s = splusb(); 1991 #ifdef DIAGNOSTIC 1992 ii->isdone = 1; 1993 #endif 1994 usb_transfer_complete(xfer); 1995 splx(s); 1996 } 1997 1998 /* Close a device bulk pipe. */ 1999 void 2000 uhci_device_bulk_close(usbd_pipe_handle pipe) 2001 { 2002 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2003 usbd_device_handle dev = upipe->pipe.device; 2004 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2005 2006 uhci_free_sqh(sc, upipe->u.bulk.sqh); 2007 } 2008 2009 usbd_status 2010 uhci_device_ctrl_transfer(usbd_xfer_handle xfer) 2011 { 2012 usbd_status err; 2013 2014 /* Insert last in queue. */ 2015 err = usb_insert_transfer(xfer); 2016 if (err) 2017 return (err); 2018 2019 /* 2020 * Pipe isn't running (otherwise err would be USBD_INPROG), 2021 * so start it first. 2022 */ 2023 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2024 } 2025 2026 usbd_status 2027 uhci_device_ctrl_start(usbd_xfer_handle xfer) 2028 { 2029 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2030 usbd_status err; 2031 2032 if (sc->sc_dying) 2033 return (USBD_IOERROR); 2034 2035 #ifdef DIAGNOSTIC 2036 if (!(xfer->rqflags & URQ_REQUEST)) 2037 panic("uhci_device_ctrl_transfer: not a request"); 2038 #endif 2039 2040 err = uhci_device_request(xfer); 2041 if (err) 2042 return (err); 2043 2044 if (sc->sc_bus.use_polling) 2045 uhci_waitintr(sc, xfer); 2046 return (USBD_IN_PROGRESS); 2047 } 2048 2049 usbd_status 2050 uhci_device_intr_transfer(usbd_xfer_handle xfer) 2051 { 2052 usbd_status err; 2053 2054 /* Insert last in queue. */ 2055 err = usb_insert_transfer(xfer); 2056 if (err) 2057 return (err); 2058 2059 /* 2060 * Pipe isn't running (otherwise err would be USBD_INPROG), 2061 * so start it first. 2062 */ 2063 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2064 } 2065 2066 usbd_status 2067 uhci_device_intr_start(usbd_xfer_handle xfer) 2068 { 2069 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2070 usbd_device_handle dev = upipe->pipe.device; 2071 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2072 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2073 uhci_soft_td_t *data, *dataend; 2074 uhci_soft_qh_t *sqh; 2075 usbd_status err; 2076 int i, s; 2077 2078 if (sc->sc_dying) 2079 return (USBD_IOERROR); 2080 2081 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 2082 xfer, xfer->length, xfer->flags)); 2083 2084 #ifdef DIAGNOSTIC 2085 if (xfer->rqflags & URQ_REQUEST) 2086 panic("uhci_device_intr_transfer: a request"); 2087 #endif 2088 2089 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2090 &xfer->dmabuf, &data, &dataend); 2091 if (err) 2092 return (err); 2093 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2094 2095 #ifdef UHCI_DEBUG 2096 if (uhcidebug > 10) { 2097 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 2098 uhci_dump_tds(data); 2099 uhci_dump_qh(upipe->u.intr.qhs[0]); 2100 } 2101 #endif 2102 2103 s = splusb(); 2104 /* Set up interrupt info. */ 2105 ii->xfer = xfer; 2106 ii->stdstart = data; 2107 ii->stdend = dataend; 2108 #ifdef DIAGNOSTIC 2109 if (!ii->isdone) { 2110 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 2111 } 2112 ii->isdone = 0; 2113 #endif 2114 2115 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 2116 upipe->u.intr.qhs[0])); 2117 for (i = 0; i < upipe->u.intr.npoll; i++) { 2118 sqh = upipe->u.intr.qhs[i]; 2119 sqh->elink = data; 2120 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2121 } 2122 uhci_add_intr_info(sc, ii); 2123 xfer->status = USBD_IN_PROGRESS; 2124 splx(s); 2125 2126 #ifdef UHCI_DEBUG 2127 if (uhcidebug > 10) { 2128 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 2129 uhci_dump_tds(data); 2130 uhci_dump_qh(upipe->u.intr.qhs[0]); 2131 } 2132 #endif 2133 2134 return (USBD_IN_PROGRESS); 2135 } 2136 2137 /* Abort a device control request. */ 2138 void 2139 uhci_device_ctrl_abort(usbd_xfer_handle xfer) 2140 { 2141 DPRINTF(("uhci_device_ctrl_abort:\n")); 2142 uhci_abort_xfer(xfer, USBD_CANCELLED); 2143 } 2144 2145 /* Close a device control pipe. */ 2146 void 2147 uhci_device_ctrl_close(usbd_pipe_handle pipe) 2148 { 2149 } 2150 2151 /* Abort a device interrupt request. */ 2152 void 2153 uhci_device_intr_abort(usbd_xfer_handle xfer) 2154 { 2155 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 2156 if (xfer->pipe->intrxfer == xfer) { 2157 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 2158 xfer->pipe->intrxfer = NULL; 2159 } 2160 uhci_abort_xfer(xfer, USBD_CANCELLED); 2161 } 2162 2163 /* Close a device interrupt pipe. */ 2164 void 2165 uhci_device_intr_close(usbd_pipe_handle pipe) 2166 { 2167 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2168 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2169 int i, npoll; 2170 int s; 2171 2172 /* Unlink descriptors from controller data structures. */ 2173 npoll = upipe->u.intr.npoll; 2174 s = splusb(); 2175 for (i = 0; i < npoll; i++) 2176 uhci_remove_intr(sc, upipe->u.intr.qhs[i]); 2177 splx(s); 2178 2179 /* 2180 * We now have to wait for any activity on the physical 2181 * descriptors to stop. 2182 */ 2183 usb_delay_ms(&sc->sc_bus, 2); 2184 2185 for(i = 0; i < npoll; i++) 2186 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 2187 free(upipe->u.intr.qhs, M_USBHC); 2188 2189 /* XXX free other resources */ 2190 } 2191 2192 usbd_status 2193 uhci_device_request(usbd_xfer_handle xfer) 2194 { 2195 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2196 usb_device_request_t *req = &xfer->request; 2197 usbd_device_handle dev = upipe->pipe.device; 2198 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2199 int addr = dev->address; 2200 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2201 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2202 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 2203 uhci_soft_qh_t *sqh; 2204 int len; 2205 u_int32_t ls; 2206 usbd_status err; 2207 int isread; 2208 int s; 2209 2210 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 2211 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 2212 req->bmRequestType, req->bRequest, UGETW(req->wValue), 2213 UGETW(req->wIndex), UGETW(req->wLength), 2214 addr, endpt)); 2215 2216 ls = dev->speed == USB_SPEED_LOW ? UHCI_TD_LS : 0; 2217 isread = req->bmRequestType & UT_READ; 2218 len = UGETW(req->wLength); 2219 2220 setup = upipe->u.ctl.setup; 2221 stat = upipe->u.ctl.stat; 2222 sqh = upipe->u.ctl.sqh; 2223 2224 /* Set up data transaction */ 2225 if (len != 0) { 2226 upipe->nexttoggle = 1; 2227 err = uhci_alloc_std_chain(upipe, sc, len, isread, xfer->flags, 2228 &xfer->dmabuf, &data, &dataend); 2229 if (err) 2230 return (err); 2231 next = data; 2232 dataend->link.std = stat; 2233 dataend->td.td_link = htole32(stat->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2234 } else { 2235 next = stat; 2236 } 2237 upipe->u.ctl.length = len; 2238 2239 memcpy(KERNADDR(&upipe->u.ctl.reqdma, 0), req, sizeof *req); 2240 2241 setup->link.std = next; 2242 setup->td.td_link = htole32(next->physaddr | UHCI_PTR_VF | UHCI_PTR_TD); 2243 setup->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2244 UHCI_TD_ACTIVE); 2245 setup->td.td_token = htole32(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 2246 setup->td.td_buffer = htole32(DMAADDR(&upipe->u.ctl.reqdma, 0)); 2247 2248 stat->link.std = NULL; 2249 stat->td.td_link = htole32(UHCI_PTR_T); 2250 stat->td.td_status = htole32(UHCI_TD_SET_ERRCNT(3) | ls | 2251 UHCI_TD_ACTIVE | UHCI_TD_IOC); 2252 stat->td.td_token = 2253 htole32(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 2254 UHCI_TD_IN (0, endpt, addr, 1)); 2255 stat->td.td_buffer = htole32(0); 2256 2257 #ifdef UHCI_DEBUG 2258 if (uhcidebug > 10) { 2259 DPRINTF(("uhci_device_request: before transfer\n")); 2260 uhci_dump_tds(setup); 2261 } 2262 #endif 2263 2264 /* Set up interrupt info. */ 2265 ii->xfer = xfer; 2266 ii->stdstart = setup; 2267 ii->stdend = stat; 2268 #ifdef DIAGNOSTIC 2269 if (!ii->isdone) { 2270 printf("uhci_device_request: not done, ii=%p\n", ii); 2271 } 2272 ii->isdone = 0; 2273 #endif 2274 2275 sqh->elink = setup; 2276 sqh->qh.qh_elink = htole32(setup->physaddr | UHCI_PTR_TD); 2277 2278 s = splusb(); 2279 if (dev->speed == USB_SPEED_LOW) 2280 uhci_add_ls_ctrl(sc, sqh); 2281 else 2282 uhci_add_hs_ctrl(sc, sqh); 2283 uhci_add_intr_info(sc, ii); 2284 #ifdef UHCI_DEBUG 2285 if (uhcidebug > 12) { 2286 uhci_soft_td_t *std; 2287 uhci_soft_qh_t *xqh; 2288 uhci_soft_qh_t *sxqh; 2289 int maxqh = 0; 2290 uhci_physaddr_t link; 2291 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 2292 for (std = sc->sc_vframes[0].htd, link = 0; 2293 (link & UHCI_PTR_QH) == 0; 2294 std = std->link.std) { 2295 link = le32toh(std->td.td_link); 2296 uhci_dump_td(std); 2297 } 2298 sxqh = (uhci_soft_qh_t *)std; 2299 uhci_dump_qh(sxqh); 2300 for (xqh = sxqh; 2301 xqh != NULL; 2302 xqh = (maxqh++ == 5 || xqh->hlink == sxqh || 2303 xqh->hlink == xqh ? NULL : xqh->hlink)) { 2304 uhci_dump_qh(xqh); 2305 } 2306 DPRINTF(("Enqueued QH:\n")); 2307 uhci_dump_qh(sqh); 2308 uhci_dump_tds(sqh->elink); 2309 } 2310 #endif 2311 if (xfer->timeout && !sc->sc_bus.use_polling) { 2312 usb_callout(xfer->timeout_handle, mstohz(xfer->timeout), 2313 uhci_timeout, ii); 2314 } 2315 xfer->status = USBD_IN_PROGRESS; 2316 splx(s); 2317 2318 return (USBD_NORMAL_COMPLETION); 2319 } 2320 2321 usbd_status 2322 uhci_device_isoc_transfer(usbd_xfer_handle xfer) 2323 { 2324 usbd_status err; 2325 2326 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 2327 2328 /* Put it on our queue, */ 2329 err = usb_insert_transfer(xfer); 2330 2331 /* bail out on error, */ 2332 if (err && err != USBD_IN_PROGRESS) 2333 return (err); 2334 2335 /* XXX should check inuse here */ 2336 2337 /* insert into schedule, */ 2338 uhci_device_isoc_enter(xfer); 2339 2340 /* and start if the pipe wasn't running */ 2341 if (!err) 2342 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 2343 2344 return (err); 2345 } 2346 2347 void 2348 uhci_device_isoc_enter(usbd_xfer_handle xfer) 2349 { 2350 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2351 usbd_device_handle dev = upipe->pipe.device; 2352 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2353 struct iso *iso = &upipe->u.iso; 2354 uhci_soft_td_t *std; 2355 u_int32_t buf, len, status; 2356 int s, i, next, nframes; 2357 2358 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 2359 "nframes=%d\n", 2360 iso->inuse, iso->next, xfer, xfer->nframes)); 2361 2362 if (sc->sc_dying) 2363 return; 2364 2365 if (xfer->status == USBD_IN_PROGRESS) { 2366 /* This request has already been entered into the frame list */ 2367 printf("uhci_device_isoc_enter: xfer=%p in frame list\n", xfer); 2368 /* XXX */ 2369 } 2370 2371 #ifdef DIAGNOSTIC 2372 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 2373 printf("uhci_device_isoc_enter: overflow!\n"); 2374 #endif 2375 2376 next = iso->next; 2377 if (next == -1) { 2378 /* Not in use yet, schedule it a few frames ahead. */ 2379 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2380 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2381 } 2382 2383 xfer->status = USBD_IN_PROGRESS; 2384 UXFER(xfer)->curframe = next; 2385 2386 buf = DMAADDR(&xfer->dmabuf, 0); 2387 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2388 UHCI_TD_ACTIVE | 2389 UHCI_TD_IOS); 2390 nframes = xfer->nframes; 2391 s = splusb(); 2392 for (i = 0; i < nframes; i++) { 2393 std = iso->stds[next]; 2394 if (++next >= UHCI_VFRAMELIST_COUNT) 2395 next = 0; 2396 len = xfer->frlengths[i]; 2397 std->td.td_buffer = htole32(buf); 2398 if (i == nframes - 1) 2399 status |= UHCI_TD_IOC; 2400 std->td.td_status = htole32(status); 2401 std->td.td_token &= htole32(~UHCI_TD_MAXLEN_MASK); 2402 std->td.td_token |= htole32(UHCI_TD_SET_MAXLEN(len)); 2403 #ifdef UHCI_DEBUG 2404 if (uhcidebug > 5) { 2405 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2406 uhci_dump_td(std); 2407 } 2408 #endif 2409 buf += len; 2410 } 2411 iso->next = next; 2412 iso->inuse += xfer->nframes; 2413 2414 splx(s); 2415 } 2416 2417 usbd_status 2418 uhci_device_isoc_start(usbd_xfer_handle xfer) 2419 { 2420 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2421 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2422 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2423 uhci_soft_td_t *end; 2424 int s, i; 2425 2426 DPRINTFN(5,("uhci_device_isoc_start: xfer=%p\n", xfer)); 2427 2428 if (sc->sc_dying) 2429 return (USBD_IOERROR); 2430 2431 #ifdef DIAGNOSTIC 2432 if (xfer->status != USBD_IN_PROGRESS) 2433 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2434 #endif 2435 2436 /* Find the last TD */ 2437 i = UXFER(xfer)->curframe + xfer->nframes; 2438 if (i >= UHCI_VFRAMELIST_COUNT) 2439 i -= UHCI_VFRAMELIST_COUNT; 2440 end = upipe->u.iso.stds[i]; 2441 2442 #ifdef DIAGNOSTIC 2443 if (end == NULL) { 2444 printf("uhci_device_isoc_start: end == NULL\n"); 2445 return (USBD_INVAL); 2446 } 2447 #endif 2448 2449 s = splusb(); 2450 2451 /* Set up interrupt info. */ 2452 ii->xfer = xfer; 2453 ii->stdstart = end; 2454 ii->stdend = end; 2455 #ifdef DIAGNOSTIC 2456 if (!ii->isdone) 2457 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2458 ii->isdone = 0; 2459 #endif 2460 uhci_add_intr_info(sc, ii); 2461 2462 splx(s); 2463 2464 return (USBD_IN_PROGRESS); 2465 } 2466 2467 void 2468 uhci_device_isoc_abort(usbd_xfer_handle xfer) 2469 { 2470 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2471 uhci_soft_td_t **stds = upipe->u.iso.stds; 2472 uhci_soft_td_t *std; 2473 int i, n, s, nframes, maxlen, len; 2474 2475 s = splusb(); 2476 2477 /* Transfer is already done. */ 2478 if (xfer->status != USBD_NOT_STARTED && 2479 xfer->status != USBD_IN_PROGRESS) { 2480 splx(s); 2481 return; 2482 } 2483 2484 /* Give xfer the requested abort code. */ 2485 xfer->status = USBD_CANCELLED; 2486 2487 /* make hardware ignore it, */ 2488 nframes = xfer->nframes; 2489 n = UXFER(xfer)->curframe; 2490 maxlen = 0; 2491 for (i = 0; i < nframes; i++) { 2492 std = stds[n]; 2493 std->td.td_status &= htole32(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2494 len = UHCI_TD_GET_MAXLEN(le32toh(std->td.td_token)); 2495 if (len > maxlen) 2496 maxlen = len; 2497 if (++n >= UHCI_VFRAMELIST_COUNT) 2498 n = 0; 2499 } 2500 2501 /* and wait until we are sure the hardware has finished. */ 2502 delay(maxlen); 2503 2504 #ifdef DIAGNOSTIC 2505 UXFER(xfer)->iinfo.isdone = 1; 2506 #endif 2507 /* Run callback and remove from interrupt list. */ 2508 usb_transfer_complete(xfer); 2509 2510 splx(s); 2511 } 2512 2513 void 2514 uhci_device_isoc_close(usbd_pipe_handle pipe) 2515 { 2516 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2517 usbd_device_handle dev = upipe->pipe.device; 2518 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2519 uhci_soft_td_t *std, *vstd; 2520 struct iso *iso; 2521 int i, s; 2522 2523 /* 2524 * Make sure all TDs are marked as inactive. 2525 * Wait for completion. 2526 * Unschedule. 2527 * Deallocate. 2528 */ 2529 iso = &upipe->u.iso; 2530 2531 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2532 iso->stds[i]->td.td_status &= htole32(~UHCI_TD_ACTIVE); 2533 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2534 2535 s = splusb(); 2536 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2537 std = iso->stds[i]; 2538 for (vstd = sc->sc_vframes[i].htd; 2539 vstd != NULL && vstd->link.std != std; 2540 vstd = vstd->link.std) 2541 ; 2542 if (vstd == NULL) { 2543 /*panic*/ 2544 printf("uhci_device_isoc_close: %p not found\n", std); 2545 splx(s); 2546 return; 2547 } 2548 vstd->link = std->link; 2549 vstd->td.td_link = std->td.td_link; 2550 uhci_free_std(sc, std); 2551 } 2552 splx(s); 2553 2554 free(iso->stds, M_USBHC); 2555 } 2556 2557 usbd_status 2558 uhci_setup_isoc(usbd_pipe_handle pipe) 2559 { 2560 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2561 usbd_device_handle dev = upipe->pipe.device; 2562 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2563 int addr = upipe->pipe.device->address; 2564 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2565 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2566 uhci_soft_td_t *std, *vstd; 2567 u_int32_t token; 2568 struct iso *iso; 2569 int i, s; 2570 2571 iso = &upipe->u.iso; 2572 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2573 M_USBHC, M_WAITOK); 2574 2575 token = rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2576 UHCI_TD_OUT(0, endpt, addr, 0); 2577 2578 /* Allocate the TDs and mark as inactive; */ 2579 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2580 std = uhci_alloc_std(sc); 2581 if (std == 0) 2582 goto bad; 2583 std->td.td_status = htole32(UHCI_TD_IOS); /* iso, inactive */ 2584 std->td.td_token = htole32(token); 2585 iso->stds[i] = std; 2586 } 2587 2588 /* Insert TDs into schedule. */ 2589 s = splusb(); 2590 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2591 std = iso->stds[i]; 2592 vstd = sc->sc_vframes[i].htd; 2593 std->link = vstd->link; 2594 std->td.td_link = vstd->td.td_link; 2595 vstd->link.std = std; 2596 vstd->td.td_link = htole32(std->physaddr | UHCI_PTR_TD); 2597 } 2598 splx(s); 2599 2600 iso->next = -1; 2601 iso->inuse = 0; 2602 2603 return (USBD_NORMAL_COMPLETION); 2604 2605 bad: 2606 while (--i >= 0) 2607 uhci_free_std(sc, iso->stds[i]); 2608 free(iso->stds, M_USBHC); 2609 return (USBD_NOMEM); 2610 } 2611 2612 void 2613 uhci_device_isoc_done(usbd_xfer_handle xfer) 2614 { 2615 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2616 2617 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2618 2619 if (ii->xfer != xfer) 2620 /* Not on interrupt list, ignore it. */ 2621 return; 2622 2623 if (!uhci_active_intr_info(ii)) 2624 return; 2625 2626 #ifdef DIAGNOSTIC 2627 if (xfer->busy_free != XFER_BUSY) { 2628 printf("uhci_device_isoc_done: xfer=%p not busy 0x%08x\n", 2629 xfer, xfer->busy_free); 2630 return; 2631 } 2632 2633 if (ii->stdend == NULL) { 2634 printf("uhci_device_isoc_done: xfer=%p stdend==NULL\n", xfer); 2635 #ifdef UHCI_DEBUG 2636 uhci_dump_ii(ii); 2637 #endif 2638 return; 2639 } 2640 #endif 2641 2642 /* Turn off the interrupt since it is active even if the TD is not. */ 2643 ii->stdend->td.td_status &= htole32(~UHCI_TD_IOC); 2644 2645 uhci_del_intr_info(ii); /* remove from active list */ 2646 } 2647 2648 void 2649 uhci_device_intr_done(usbd_xfer_handle xfer) 2650 { 2651 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2652 uhci_softc_t *sc = ii->sc; 2653 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2654 uhci_soft_qh_t *sqh; 2655 int i, npoll; 2656 2657 DPRINTFN(5, ("uhci_device_intr_done: length=%d\n", xfer->actlen)); 2658 2659 npoll = upipe->u.intr.npoll; 2660 for(i = 0; i < npoll; i++) { 2661 sqh = upipe->u.intr.qhs[i]; 2662 sqh->elink = NULL; 2663 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2664 } 2665 uhci_free_std_chain(sc, ii->stdstart, NULL); 2666 2667 /* XXX Wasteful. */ 2668 if (xfer->pipe->repeat) { 2669 uhci_soft_td_t *data, *dataend; 2670 2671 DPRINTFN(5,("uhci_device_intr_done: requeing\n")); 2672 2673 /* This alloc cannot fail since we freed the chain above. */ 2674 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, xfer->flags, 2675 &xfer->dmabuf, &data, &dataend); 2676 dataend->td.td_status |= htole32(UHCI_TD_IOC); 2677 2678 #ifdef UHCI_DEBUG 2679 if (uhcidebug > 10) { 2680 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2681 uhci_dump_tds(data); 2682 uhci_dump_qh(upipe->u.intr.qhs[0]); 2683 } 2684 #endif 2685 2686 ii->stdstart = data; 2687 ii->stdend = dataend; 2688 #ifdef DIAGNOSTIC 2689 if (!ii->isdone) { 2690 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2691 } 2692 ii->isdone = 0; 2693 #endif 2694 for (i = 0; i < npoll; i++) { 2695 sqh = upipe->u.intr.qhs[i]; 2696 sqh->elink = data; 2697 sqh->qh.qh_elink = htole32(data->physaddr | UHCI_PTR_TD); 2698 } 2699 xfer->status = USBD_IN_PROGRESS; 2700 /* The ii is already on the examined list, just leave it. */ 2701 } else { 2702 DPRINTFN(5,("uhci_device_intr_done: removing\n")); 2703 if (uhci_active_intr_info(ii)) 2704 uhci_del_intr_info(ii); 2705 } 2706 } 2707 2708 /* Deallocate request data structures */ 2709 void 2710 uhci_device_ctrl_done(usbd_xfer_handle xfer) 2711 { 2712 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2713 uhci_softc_t *sc = ii->sc; 2714 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2715 2716 #ifdef DIAGNOSTIC 2717 if (!(xfer->rqflags & URQ_REQUEST)) 2718 panic("uhci_device_ctrl_done: not a request"); 2719 #endif 2720 2721 if (!uhci_active_intr_info(ii)) 2722 return; 2723 2724 uhci_del_intr_info(ii); /* remove from active list */ 2725 2726 if (upipe->pipe.device->speed == USB_SPEED_LOW) 2727 uhci_remove_ls_ctrl(sc, upipe->u.ctl.sqh); 2728 else 2729 uhci_remove_hs_ctrl(sc, upipe->u.ctl.sqh); 2730 2731 if (upipe->u.ctl.length != 0) 2732 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2733 2734 DPRINTFN(5, ("uhci_device_ctrl_done: length=%d\n", xfer->actlen)); 2735 } 2736 2737 /* Deallocate request data structures */ 2738 void 2739 uhci_device_bulk_done(usbd_xfer_handle xfer) 2740 { 2741 uhci_intr_info_t *ii = &UXFER(xfer)->iinfo; 2742 uhci_softc_t *sc = ii->sc; 2743 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2744 2745 DPRINTFN(5,("uhci_device_bulk_done: xfer=%p ii=%p sc=%p upipe=%p\n", 2746 xfer, ii, sc, upipe)); 2747 2748 if (!uhci_active_intr_info(ii)) 2749 return; 2750 2751 uhci_del_intr_info(ii); /* remove from active list */ 2752 2753 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2754 2755 uhci_free_std_chain(sc, ii->stdstart, NULL); 2756 2757 DPRINTFN(5, ("uhci_device_bulk_done: length=%d\n", xfer->actlen)); 2758 } 2759 2760 /* Add interrupt QH, called with vflock. */ 2761 void 2762 uhci_add_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2763 { 2764 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2765 uhci_soft_qh_t *eqh; 2766 2767 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2768 2769 eqh = vf->eqh; 2770 sqh->hlink = eqh->hlink; 2771 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2772 eqh->hlink = sqh; 2773 eqh->qh.qh_hlink = htole32(sqh->physaddr | UHCI_PTR_QH); 2774 vf->eqh = sqh; 2775 vf->bandwidth++; 2776 } 2777 2778 /* Remove interrupt QH. */ 2779 void 2780 uhci_remove_intr(uhci_softc_t *sc, uhci_soft_qh_t *sqh) 2781 { 2782 struct uhci_vframe *vf = &sc->sc_vframes[sqh->pos]; 2783 uhci_soft_qh_t *pqh; 2784 2785 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", sqh->pos, sqh)); 2786 2787 /* See comment in uhci_remove_ctrl() */ 2788 if (!(sqh->qh.qh_elink & htole32(UHCI_PTR_T))) { 2789 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2790 delay(UHCI_QH_REMOVE_DELAY); 2791 } 2792 2793 pqh = uhci_find_prev_qh(vf->hqh, sqh); 2794 pqh->hlink = sqh->hlink; 2795 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2796 delay(UHCI_QH_REMOVE_DELAY); 2797 if (vf->eqh == sqh) 2798 vf->eqh = pqh; 2799 vf->bandwidth--; 2800 } 2801 2802 usbd_status 2803 uhci_device_setintr(uhci_softc_t *sc, struct uhci_pipe *upipe, int ival) 2804 { 2805 uhci_soft_qh_t *sqh; 2806 int i, npoll, s; 2807 u_int bestbw, bw, bestoffs, offs; 2808 2809 DPRINTFN(2, ("uhci_device_setintr: pipe=%p\n", upipe)); 2810 if (ival == 0) { 2811 printf("uhci_device_setintr: 0 interval\n"); 2812 return (USBD_INVAL); 2813 } 2814 2815 if (ival > UHCI_VFRAMELIST_COUNT) 2816 ival = UHCI_VFRAMELIST_COUNT; 2817 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2818 DPRINTFN(2, ("uhci_device_setintr: ival=%d npoll=%d\n", ival, npoll)); 2819 2820 upipe->u.intr.npoll = npoll; 2821 upipe->u.intr.qhs = 2822 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2823 2824 /* 2825 * Figure out which offset in the schedule that has most 2826 * bandwidth left over. 2827 */ 2828 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2829 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2830 for (bw = i = 0; i < npoll; i++) 2831 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2832 if (bw < bestbw) { 2833 bestbw = bw; 2834 bestoffs = offs; 2835 } 2836 } 2837 DPRINTFN(1, ("uhci_device_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2838 2839 for(i = 0; i < npoll; i++) { 2840 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2841 sqh->elink = NULL; 2842 sqh->qh.qh_elink = htole32(UHCI_PTR_T); 2843 sqh->pos = MOD(i * ival + bestoffs); 2844 } 2845 #undef MOD 2846 2847 s = splusb(); 2848 /* Enter QHs into the controller data structures. */ 2849 for(i = 0; i < npoll; i++) 2850 uhci_add_intr(sc, upipe->u.intr.qhs[i]); 2851 splx(s); 2852 2853 DPRINTFN(5, ("uhci_device_setintr: returns %p\n", upipe)); 2854 return (USBD_NORMAL_COMPLETION); 2855 } 2856 2857 /* Open a new pipe. */ 2858 usbd_status 2859 uhci_open(usbd_pipe_handle pipe) 2860 { 2861 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2862 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2863 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2864 usbd_status err; 2865 int ival; 2866 2867 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2868 pipe, pipe->device->address, 2869 ed->bEndpointAddress, sc->sc_addr)); 2870 2871 upipe->aborting = 0; 2872 upipe->nexttoggle = 0; 2873 2874 if (pipe->device->address == sc->sc_addr) { 2875 switch (ed->bEndpointAddress) { 2876 case USB_CONTROL_ENDPOINT: 2877 pipe->methods = &uhci_root_ctrl_methods; 2878 break; 2879 case UE_DIR_IN | UHCI_INTR_ENDPT: 2880 pipe->methods = &uhci_root_intr_methods; 2881 break; 2882 default: 2883 return (USBD_INVAL); 2884 } 2885 } else { 2886 switch (ed->bmAttributes & UE_XFERTYPE) { 2887 case UE_CONTROL: 2888 pipe->methods = &uhci_device_ctrl_methods; 2889 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2890 if (upipe->u.ctl.sqh == NULL) 2891 goto bad; 2892 upipe->u.ctl.setup = uhci_alloc_std(sc); 2893 if (upipe->u.ctl.setup == NULL) { 2894 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2895 goto bad; 2896 } 2897 upipe->u.ctl.stat = uhci_alloc_std(sc); 2898 if (upipe->u.ctl.stat == NULL) { 2899 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2900 uhci_free_std(sc, upipe->u.ctl.setup); 2901 goto bad; 2902 } 2903 err = usb_allocmem(&sc->sc_bus, 2904 sizeof(usb_device_request_t), 2905 0, &upipe->u.ctl.reqdma); 2906 if (err) { 2907 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2908 uhci_free_std(sc, upipe->u.ctl.setup); 2909 uhci_free_std(sc, upipe->u.ctl.stat); 2910 goto bad; 2911 } 2912 break; 2913 case UE_INTERRUPT: 2914 pipe->methods = &uhci_device_intr_methods; 2915 ival = pipe->interval; 2916 if (ival == USBD_DEFAULT_INTERVAL) 2917 ival = ed->bInterval; 2918 return (uhci_device_setintr(sc, upipe, ival)); 2919 case UE_ISOCHRONOUS: 2920 pipe->methods = &uhci_device_isoc_methods; 2921 return (uhci_setup_isoc(pipe)); 2922 case UE_BULK: 2923 pipe->methods = &uhci_device_bulk_methods; 2924 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2925 if (upipe->u.bulk.sqh == NULL) 2926 goto bad; 2927 break; 2928 } 2929 } 2930 return (USBD_NORMAL_COMPLETION); 2931 2932 bad: 2933 return (USBD_NOMEM); 2934 } 2935 2936 /* 2937 * Data structures and routines to emulate the root hub. 2938 */ 2939 usb_device_descriptor_t uhci_devd = { 2940 USB_DEVICE_DESCRIPTOR_SIZE, 2941 UDESC_DEVICE, /* type */ 2942 {0x00, 0x01}, /* USB version */ 2943 UDCLASS_HUB, /* class */ 2944 UDSUBCLASS_HUB, /* subclass */ 2945 UDPROTO_FSHUB, /* protocol */ 2946 64, /* max packet */ 2947 {0},{0},{0x00,0x01}, /* device id */ 2948 1,2,0, /* string indicies */ 2949 1 /* # of configurations */ 2950 }; 2951 2952 usb_config_descriptor_t uhci_confd = { 2953 USB_CONFIG_DESCRIPTOR_SIZE, 2954 UDESC_CONFIG, 2955 {USB_CONFIG_DESCRIPTOR_SIZE + 2956 USB_INTERFACE_DESCRIPTOR_SIZE + 2957 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2958 1, 2959 1, 2960 0, 2961 UC_SELF_POWERED, 2962 0 /* max power */ 2963 }; 2964 2965 usb_interface_descriptor_t uhci_ifcd = { 2966 USB_INTERFACE_DESCRIPTOR_SIZE, 2967 UDESC_INTERFACE, 2968 0, 2969 0, 2970 1, 2971 UICLASS_HUB, 2972 UISUBCLASS_HUB, 2973 UIPROTO_FSHUB, 2974 0 2975 }; 2976 2977 usb_endpoint_descriptor_t uhci_endpd = { 2978 USB_ENDPOINT_DESCRIPTOR_SIZE, 2979 UDESC_ENDPOINT, 2980 UE_DIR_IN | UHCI_INTR_ENDPT, 2981 UE_INTERRUPT, 2982 {8}, 2983 255 2984 }; 2985 2986 usb_hub_descriptor_t uhci_hubd_piix = { 2987 USB_HUB_DESCRIPTOR_SIZE, 2988 UDESC_HUB, 2989 2, 2990 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2991 50, /* power on to power good */ 2992 0, 2993 { 0x00 }, /* both ports are removable */ 2994 }; 2995 2996 int 2997 uhci_str(usb_string_descriptor_t *p, int l, char *s) 2998 { 2999 int i; 3000 3001 if (l == 0) 3002 return (0); 3003 p->bLength = 2 * strlen(s) + 2; 3004 if (l == 1) 3005 return (1); 3006 p->bDescriptorType = UDESC_STRING; 3007 l -= 2; 3008 for (i = 0; s[i] && l > 1; i++, l -= 2) 3009 USETW2(p->bString[i], 0, s[i]); 3010 return (2*i+2); 3011 } 3012 3013 /* 3014 * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also 3015 * enables the port, and also states that SET_FEATURE(PORT_ENABLE) 3016 * should not be used by the USB subsystem. As we cannot issue a 3017 * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port 3018 * will be enabled as part of the reset. 3019 * 3020 * On the VT83C572, the port cannot be successfully enabled until the 3021 * outstanding "port enable change" and "connection status change" 3022 * events have been reset. 3023 */ 3024 Static usbd_status 3025 uhci_portreset(uhci_softc_t *sc, int index) 3026 { 3027 int lim, port, x; 3028 3029 if (index == 1) 3030 port = UHCI_PORTSC1; 3031 else if (index == 2) 3032 port = UHCI_PORTSC2; 3033 else 3034 return (USBD_IOERROR); 3035 3036 x = URWMASK(UREAD2(sc, port)); 3037 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 3038 3039 usb_delay_ms(&sc->sc_bus, USB_PORT_ROOT_RESET_DELAY); 3040 3041 DPRINTFN(3,("uhci port %d reset, status0 = 0x%04x\n", 3042 index, UREAD2(sc, port))); 3043 3044 x = URWMASK(UREAD2(sc, port)); 3045 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3046 3047 delay(100); 3048 3049 DPRINTFN(3,("uhci port %d reset, status1 = 0x%04x\n", 3050 index, UREAD2(sc, port))); 3051 3052 x = URWMASK(UREAD2(sc, port)); 3053 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3054 3055 for (lim = 10; --lim > 0;) { 3056 usb_delay_ms(&sc->sc_bus, USB_PORT_RESET_DELAY); 3057 3058 x = UREAD2(sc, port); 3059 3060 DPRINTFN(3,("uhci port %d iteration %u, status = 0x%04x\n", 3061 index, lim, x)); 3062 3063 if (!(x & UHCI_PORTSC_CCS)) { 3064 /* 3065 * No device is connected (or was disconnected 3066 * during reset). Consider the port reset. 3067 * The delay must be long enough to ensure on 3068 * the initial iteration that the device 3069 * connection will have been registered. 50ms 3070 * appears to be sufficient, but 20ms is not. 3071 */ 3072 DPRINTFN(3,("uhci port %d loop %u, device detached\n", 3073 index, lim)); 3074 break; 3075 } 3076 3077 if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) { 3078 /* 3079 * Port enabled changed and/or connection 3080 * status changed were set. Reset either or 3081 * both raised flags (by writing a 1 to that 3082 * bit), and wait again for state to settle. 3083 */ 3084 UWRITE2(sc, port, URWMASK(x) | 3085 (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC))); 3086 continue; 3087 } 3088 3089 if (x & UHCI_PORTSC_PE) 3090 /* Port is enabled */ 3091 break; 3092 3093 UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE); 3094 } 3095 3096 DPRINTFN(3,("uhci port %d reset, status2 = 0x%04x\n", 3097 index, UREAD2(sc, port))); 3098 3099 if (lim <= 0) { 3100 DPRINTFN(1,("uhci port %d reset timed out\n", index)); 3101 return (USBD_TIMEOUT); 3102 } 3103 3104 sc->sc_isreset = 1; 3105 return (USBD_NORMAL_COMPLETION); 3106 } 3107 3108 /* 3109 * Simulate a hardware hub by handling all the necessary requests. 3110 */ 3111 usbd_status 3112 uhci_root_ctrl_transfer(usbd_xfer_handle xfer) 3113 { 3114 usbd_status err; 3115 3116 /* Insert last in queue. */ 3117 err = usb_insert_transfer(xfer); 3118 if (err) 3119 return (err); 3120 3121 /* 3122 * Pipe isn't running (otherwise err would be USBD_INPROG), 3123 * so start it first. 3124 */ 3125 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3126 } 3127 3128 usbd_status 3129 uhci_root_ctrl_start(usbd_xfer_handle xfer) 3130 { 3131 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3132 usb_device_request_t *req; 3133 void *buf = NULL; 3134 int port, x; 3135 int s, len, value, index, status, change, l, totlen = 0; 3136 usb_port_status_t ps; 3137 usbd_status err; 3138 3139 if (sc->sc_dying) 3140 return (USBD_IOERROR); 3141 3142 #ifdef DIAGNOSTIC 3143 if (!(xfer->rqflags & URQ_REQUEST)) 3144 panic("uhci_root_ctrl_transfer: not a request"); 3145 #endif 3146 req = &xfer->request; 3147 3148 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 3149 req->bmRequestType, req->bRequest)); 3150 3151 len = UGETW(req->wLength); 3152 value = UGETW(req->wValue); 3153 index = UGETW(req->wIndex); 3154 3155 if (len != 0) 3156 buf = KERNADDR(&xfer->dmabuf, 0); 3157 3158 #define C(x,y) ((x) | ((y) << 8)) 3159 switch(C(req->bRequest, req->bmRequestType)) { 3160 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 3161 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 3162 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 3163 /* 3164 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 3165 * for the integrated root hub. 3166 */ 3167 break; 3168 case C(UR_GET_CONFIG, UT_READ_DEVICE): 3169 if (len > 0) { 3170 *(u_int8_t *)buf = sc->sc_conf; 3171 totlen = 1; 3172 } 3173 break; 3174 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 3175 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 3176 switch(value >> 8) { 3177 case UDESC_DEVICE: 3178 if ((value & 0xff) != 0) { 3179 err = USBD_IOERROR; 3180 goto ret; 3181 } 3182 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 3183 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 3184 memcpy(buf, &uhci_devd, l); 3185 break; 3186 case UDESC_CONFIG: 3187 if ((value & 0xff) != 0) { 3188 err = USBD_IOERROR; 3189 goto ret; 3190 } 3191 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 3192 memcpy(buf, &uhci_confd, l); 3193 buf = (char *)buf + l; 3194 len -= l; 3195 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 3196 totlen += l; 3197 memcpy(buf, &uhci_ifcd, l); 3198 buf = (char *)buf + l; 3199 len -= l; 3200 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 3201 totlen += l; 3202 memcpy(buf, &uhci_endpd, l); 3203 break; 3204 case UDESC_STRING: 3205 if (len == 0) 3206 break; 3207 *(u_int8_t *)buf = 0; 3208 totlen = 1; 3209 switch (value & 0xff) { 3210 case 1: /* Vendor */ 3211 totlen = uhci_str(buf, len, sc->sc_vendor); 3212 break; 3213 case 2: /* Product */ 3214 totlen = uhci_str(buf, len, "UHCI root hub"); 3215 break; 3216 } 3217 break; 3218 default: 3219 err = USBD_IOERROR; 3220 goto ret; 3221 } 3222 break; 3223 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 3224 if (len > 0) { 3225 *(u_int8_t *)buf = 0; 3226 totlen = 1; 3227 } 3228 break; 3229 case C(UR_GET_STATUS, UT_READ_DEVICE): 3230 if (len > 1) { 3231 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 3232 totlen = 2; 3233 } 3234 break; 3235 case C(UR_GET_STATUS, UT_READ_INTERFACE): 3236 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 3237 if (len > 1) { 3238 USETW(((usb_status_t *)buf)->wStatus, 0); 3239 totlen = 2; 3240 } 3241 break; 3242 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 3243 if (value >= USB_MAX_DEVICES) { 3244 err = USBD_IOERROR; 3245 goto ret; 3246 } 3247 sc->sc_addr = value; 3248 break; 3249 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 3250 if (value != 0 && value != 1) { 3251 err = USBD_IOERROR; 3252 goto ret; 3253 } 3254 sc->sc_conf = value; 3255 break; 3256 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 3257 break; 3258 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 3259 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 3260 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 3261 err = USBD_IOERROR; 3262 goto ret; 3263 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 3264 break; 3265 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 3266 break; 3267 /* Hub requests */ 3268 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 3269 break; 3270 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 3271 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 3272 "port=%d feature=%d\n", 3273 index, value)); 3274 if (index == 1) 3275 port = UHCI_PORTSC1; 3276 else if (index == 2) 3277 port = UHCI_PORTSC2; 3278 else { 3279 err = USBD_IOERROR; 3280 goto ret; 3281 } 3282 switch(value) { 3283 case UHF_PORT_ENABLE: 3284 x = URWMASK(UREAD2(sc, port)); 3285 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 3286 break; 3287 case UHF_PORT_SUSPEND: 3288 x = URWMASK(UREAD2(sc, port)); 3289 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 3290 break; 3291 case UHF_PORT_RESET: 3292 x = URWMASK(UREAD2(sc, port)); 3293 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 3294 break; 3295 case UHF_C_PORT_CONNECTION: 3296 x = URWMASK(UREAD2(sc, port)); 3297 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 3298 break; 3299 case UHF_C_PORT_ENABLE: 3300 x = URWMASK(UREAD2(sc, port)); 3301 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 3302 break; 3303 case UHF_C_PORT_OVER_CURRENT: 3304 x = URWMASK(UREAD2(sc, port)); 3305 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 3306 break; 3307 case UHF_C_PORT_RESET: 3308 sc->sc_isreset = 0; 3309 err = USBD_NORMAL_COMPLETION; 3310 goto ret; 3311 case UHF_PORT_CONNECTION: 3312 case UHF_PORT_OVER_CURRENT: 3313 case UHF_PORT_POWER: 3314 case UHF_PORT_LOW_SPEED: 3315 case UHF_C_PORT_SUSPEND: 3316 default: 3317 err = USBD_IOERROR; 3318 goto ret; 3319 } 3320 break; 3321 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 3322 if (index == 1) 3323 port = UHCI_PORTSC1; 3324 else if (index == 2) 3325 port = UHCI_PORTSC2; 3326 else { 3327 err = USBD_IOERROR; 3328 goto ret; 3329 } 3330 if (len > 0) { 3331 *(u_int8_t *)buf = 3332 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 3333 UHCI_PORTSC_LS_SHIFT; 3334 totlen = 1; 3335 } 3336 break; 3337 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 3338 if ((value & 0xff) != 0) { 3339 err = USBD_IOERROR; 3340 goto ret; 3341 } 3342 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 3343 totlen = l; 3344 memcpy(buf, &uhci_hubd_piix, l); 3345 break; 3346 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 3347 if (len != 4) { 3348 err = USBD_IOERROR; 3349 goto ret; 3350 } 3351 memset(buf, 0, len); 3352 totlen = len; 3353 break; 3354 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 3355 if (index == 1) 3356 port = UHCI_PORTSC1; 3357 else if (index == 2) 3358 port = UHCI_PORTSC2; 3359 else { 3360 err = USBD_IOERROR; 3361 goto ret; 3362 } 3363 if (len != 4) { 3364 err = USBD_IOERROR; 3365 goto ret; 3366 } 3367 x = UREAD2(sc, port); 3368 status = change = 0; 3369 if (x & UHCI_PORTSC_CCS) 3370 status |= UPS_CURRENT_CONNECT_STATUS; 3371 if (x & UHCI_PORTSC_CSC) 3372 change |= UPS_C_CONNECT_STATUS; 3373 if (x & UHCI_PORTSC_PE) 3374 status |= UPS_PORT_ENABLED; 3375 if (x & UHCI_PORTSC_POEDC) 3376 change |= UPS_C_PORT_ENABLED; 3377 if (x & UHCI_PORTSC_OCI) 3378 status |= UPS_OVERCURRENT_INDICATOR; 3379 if (x & UHCI_PORTSC_OCIC) 3380 change |= UPS_C_OVERCURRENT_INDICATOR; 3381 if (x & UHCI_PORTSC_SUSP) 3382 status |= UPS_SUSPEND; 3383 if (x & UHCI_PORTSC_LSDA) 3384 status |= UPS_LOW_SPEED; 3385 status |= UPS_PORT_POWER; 3386 if (sc->sc_isreset) 3387 change |= UPS_C_PORT_RESET; 3388 USETW(ps.wPortStatus, status); 3389 USETW(ps.wPortChange, change); 3390 l = min(len, sizeof ps); 3391 memcpy(buf, &ps, l); 3392 totlen = l; 3393 break; 3394 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 3395 err = USBD_IOERROR; 3396 goto ret; 3397 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 3398 break; 3399 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 3400 if (index == 1) 3401 port = UHCI_PORTSC1; 3402 else if (index == 2) 3403 port = UHCI_PORTSC2; 3404 else { 3405 err = USBD_IOERROR; 3406 goto ret; 3407 } 3408 switch(value) { 3409 case UHF_PORT_ENABLE: 3410 x = URWMASK(UREAD2(sc, port)); 3411 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 3412 break; 3413 case UHF_PORT_SUSPEND: 3414 x = URWMASK(UREAD2(sc, port)); 3415 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 3416 break; 3417 case UHF_PORT_RESET: 3418 err = uhci_portreset(sc, index); 3419 goto ret; 3420 case UHF_PORT_POWER: 3421 /* Pretend we turned on power */ 3422 err = USBD_NORMAL_COMPLETION; 3423 goto ret; 3424 case UHF_C_PORT_CONNECTION: 3425 case UHF_C_PORT_ENABLE: 3426 case UHF_C_PORT_OVER_CURRENT: 3427 case UHF_PORT_CONNECTION: 3428 case UHF_PORT_OVER_CURRENT: 3429 case UHF_PORT_LOW_SPEED: 3430 case UHF_C_PORT_SUSPEND: 3431 case UHF_C_PORT_RESET: 3432 default: 3433 err = USBD_IOERROR; 3434 goto ret; 3435 } 3436 break; 3437 default: 3438 err = USBD_IOERROR; 3439 goto ret; 3440 } 3441 xfer->actlen = totlen; 3442 err = USBD_NORMAL_COMPLETION; 3443 ret: 3444 xfer->status = err; 3445 s = splusb(); 3446 usb_transfer_complete(xfer); 3447 splx(s); 3448 return (USBD_IN_PROGRESS); 3449 } 3450 3451 /* Abort a root control request. */ 3452 void 3453 uhci_root_ctrl_abort(usbd_xfer_handle xfer) 3454 { 3455 /* Nothing to do, all transfers are synchronous. */ 3456 } 3457 3458 /* Close the root pipe. */ 3459 void 3460 uhci_root_ctrl_close(usbd_pipe_handle pipe) 3461 { 3462 DPRINTF(("uhci_root_ctrl_close\n")); 3463 } 3464 3465 /* Abort a root interrupt request. */ 3466 void 3467 uhci_root_intr_abort(usbd_xfer_handle xfer) 3468 { 3469 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 3470 3471 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, xfer); 3472 sc->sc_intr_xfer = NULL; 3473 3474 if (xfer->pipe->intrxfer == xfer) { 3475 DPRINTF(("uhci_root_intr_abort: remove\n")); 3476 xfer->pipe->intrxfer = 0; 3477 } 3478 xfer->status = USBD_CANCELLED; 3479 #ifdef DIAGNOSTIC 3480 UXFER(xfer)->iinfo.isdone = 1; 3481 #endif 3482 usb_transfer_complete(xfer); 3483 } 3484 3485 usbd_status 3486 uhci_root_intr_transfer(usbd_xfer_handle xfer) 3487 { 3488 usbd_status err; 3489 3490 /* Insert last in queue. */ 3491 err = usb_insert_transfer(xfer); 3492 if (err) 3493 return (err); 3494 3495 /* Pipe isn't running (otherwise err would be USBD_INPROG), 3496 * start first 3497 */ 3498 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3499 } 3500 3501 /* Start a transfer on the root interrupt pipe */ 3502 usbd_status 3503 uhci_root_intr_start(usbd_xfer_handle xfer) 3504 { 3505 usbd_pipe_handle pipe = xfer->pipe; 3506 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3507 unsigned int ival; 3508 3509 DPRINTFN(3, ("uhci_root_intr_start: xfer=%p len=%d flags=%d\n", 3510 xfer, xfer->length, xfer->flags)); 3511 3512 if (sc->sc_dying) 3513 return (USBD_IOERROR); 3514 3515 /* XXX temporary variable needed to avoid gcc3 warning */ 3516 ival = xfer->pipe->endpoint->edesc->bInterval; 3517 sc->sc_ival = mstohz(ival); 3518 usb_callout(sc->sc_poll_handle, sc->sc_ival, uhci_poll_hub, xfer); 3519 sc->sc_intr_xfer = xfer; 3520 return (USBD_IN_PROGRESS); 3521 } 3522 3523 /* Close the root interrupt pipe. */ 3524 void 3525 uhci_root_intr_close(usbd_pipe_handle pipe) 3526 { 3527 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3528 3529 usb_uncallout(sc->sc_poll_handle, uhci_poll_hub, sc->sc_intr_xfer); 3530 sc->sc_intr_xfer = NULL; 3531 DPRINTF(("uhci_root_intr_close\n")); 3532 } 3533
Indexes created Tue Sep 30 20:09:53 GMT 2025