uhci.c revision 1.41
1 /* $NetBSD: uhci.c,v 1.41 1999/08/22 20:12:39 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * USB Universal Host Controller driver. 42 * Handles e.g. PIIX3 and PIIX4. 43 * 44 * Data sheets: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 45 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 46 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 47 * USB spec: http://www.usb.org/developers/data/usb11.pdf 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/malloc.h> 54 #if defined(__NetBSD__) || defined(__OpenBSD__) 55 #include <sys/device.h> 56 #elif defined(__FreeBSD__) 57 #include <sys/module.h> 58 #include <sys/bus.h> 59 #endif 60 #include <sys/proc.h> 61 #include <sys/queue.h> 62 #include <sys/select.h> 63 64 #if defined(__FreeBSD__) 65 #include <machine/bus_pio.h> 66 #endif 67 #include <machine/bus.h> 68 #include <machine/endian.h> 69 70 #include <dev/usb/usb.h> 71 #include <dev/usb/usbdi.h> 72 #include <dev/usb/usbdivar.h> 73 #include <dev/usb/usb_mem.h> 74 #include <dev/usb/usb_quirks.h> 75 76 #include <dev/usb/uhcireg.h> 77 #include <dev/usb/uhcivar.h> 78 79 #if defined(__FreeBSD__) 80 #include <machine/clock.h> 81 82 #define delay(d) DELAY(d) 83 #endif 84 85 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 86 87 #if defined(__OpenBSD__) 88 struct cfdriver uhci_cd = { 89 NULL, "uhci", DV_DULL 90 }; 91 #endif 92 93 /* 94 * The UHCI controller is little endian, so on big endian machines 95 * the data strored in memory needs to be swapped. 96 */ 97 #if BYTE_ORDER == BIG_ENDIAN 98 #define LE(x) (bswap32(x)) 99 #else 100 #define LE(x) (x) 101 #endif 102 103 struct uhci_pipe { 104 struct usbd_pipe pipe; 105 uhci_intr_info_t *iinfo; 106 int nexttoggle; 107 /* Info needed for different pipe kinds. */ 108 union { 109 /* Control pipe */ 110 struct { 111 uhci_soft_qh_t *sqh; 112 usb_dma_t reqdma; 113 usb_dma_t datadma; 114 uhci_soft_td_t *setup, *stat; 115 u_int length; 116 } ctl; 117 /* Interrupt pipe */ 118 struct { 119 usb_dma_t datadma; 120 int npoll; 121 uhci_soft_qh_t **qhs; 122 } intr; 123 /* Bulk pipe */ 124 struct { 125 uhci_soft_qh_t *sqh; 126 usb_dma_t datadma; 127 u_int length; 128 int isread; 129 } bulk; 130 /* Iso pipe */ 131 struct iso { 132 u_int bufsize; 133 u_int nbuf; 134 usb_dma_t *bufs; 135 uhci_soft_td_t **stds; 136 } iso; 137 } u; 138 }; 139 140 /* 141 * The uhci_intr_info free list can be global since they contain 142 * no dma specific data. The other free lists do. 143 */ 144 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 145 146 void uhci_busreset __P((uhci_softc_t *)); 147 void uhci_power __P((int, void *)); 148 usbd_status uhci_run __P((uhci_softc_t *, int run)); 149 uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 150 void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 151 uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 152 void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 153 uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 154 void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 155 #if 0 156 void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 157 uhci_intr_info_t *)); 158 void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 159 #endif 160 161 void uhci_free_std_chain __P((uhci_softc_t *, 162 uhci_soft_td_t *, uhci_soft_td_t *)); 163 usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, uhci_softc_t *, 164 int, int, int, usb_dma_t *, 165 uhci_soft_td_t **, 166 uhci_soft_td_t **)); 167 void uhci_timo __P((void *)); 168 void uhci_waitintr __P((uhci_softc_t *, usbd_request_handle)); 169 void uhci_check_intr __P((uhci_softc_t *, uhci_intr_info_t *)); 170 void uhci_idone __P((uhci_intr_info_t *)); 171 void uhci_abort_req __P((usbd_request_handle, usbd_status status)); 172 void uhci_abort_req_end __P((void *v)); 173 void uhci_timeout __P((void *)); 174 void uhci_wakeup_ctrl __P((void *, int, int, void *, int)); 175 void uhci_lock_frames __P((uhci_softc_t *)); 176 void uhci_unlock_frames __P((uhci_softc_t *)); 177 void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 178 void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 179 void uhci_remove_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 180 void uhci_remove_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 181 int uhci_str __P((usb_string_descriptor_t *, int, char *)); 182 183 void uhci_wakeup_cb __P((usbd_request_handle reqh)); 184 185 usbd_status uhci_device_ctrl_transfer __P((usbd_request_handle)); 186 usbd_status uhci_device_ctrl_start __P((usbd_request_handle)); 187 void uhci_device_ctrl_abort __P((usbd_request_handle)); 188 void uhci_device_ctrl_close __P((usbd_pipe_handle)); 189 void uhci_device_ctrl_done __P((usbd_request_handle)); 190 191 usbd_status uhci_device_intr_transfer __P((usbd_request_handle)); 192 usbd_status uhci_device_intr_start __P((usbd_request_handle)); 193 void uhci_device_intr_abort __P((usbd_request_handle)); 194 void uhci_device_intr_close __P((usbd_pipe_handle)); 195 void uhci_device_intr_done __P((usbd_request_handle)); 196 197 usbd_status uhci_device_bulk_transfer __P((usbd_request_handle)); 198 usbd_status uhci_device_bulk_start __P((usbd_request_handle)); 199 void uhci_device_bulk_abort __P((usbd_request_handle)); 200 void uhci_device_bulk_close __P((usbd_pipe_handle)); 201 void uhci_device_bulk_done __P((usbd_request_handle)); 202 203 usbd_status uhci_device_isoc_transfer __P((usbd_request_handle)); 204 usbd_status uhci_device_isoc_start __P((usbd_request_handle)); 205 void uhci_device_isoc_abort __P((usbd_request_handle)); 206 void uhci_device_isoc_close __P((usbd_pipe_handle)); 207 void uhci_device_isoc_done __P((usbd_request_handle)); 208 usbd_status uhci_device_isoc_setbuf __P((usbd_pipe_handle, u_int, u_int)); 209 210 usbd_status uhci_root_ctrl_transfer __P((usbd_request_handle)); 211 usbd_status uhci_root_ctrl_start __P((usbd_request_handle)); 212 void uhci_root_ctrl_abort __P((usbd_request_handle)); 213 void uhci_root_ctrl_close __P((usbd_pipe_handle)); 214 215 usbd_status uhci_root_intr_transfer __P((usbd_request_handle)); 216 usbd_status uhci_root_intr_start __P((usbd_request_handle)); 217 void uhci_root_intr_abort __P((usbd_request_handle)); 218 void uhci_root_intr_close __P((usbd_pipe_handle)); 219 void uhci_root_intr_done __P((usbd_request_handle)); 220 221 usbd_status uhci_open __P((usbd_pipe_handle)); 222 void uhci_poll __P((struct usbd_bus *)); 223 224 usbd_status uhci_device_request __P((usbd_request_handle reqh)); 225 226 void uhci_add_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 227 void uhci_remove_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 228 usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 229 struct uhci_pipe *pipe, int ival)); 230 231 void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 232 void uhci_noop __P((usbd_pipe_handle pipe)); 233 234 #ifdef USB_DEBUG 235 static void uhci_dumpregs __P((uhci_softc_t *)); 236 void uhci_dump_tds __P((uhci_soft_td_t *)); 237 void uhci_dump_qh __P((uhci_soft_qh_t *)); 238 void uhci_dump __P((void)); 239 void uhci_dump_td __P((uhci_soft_td_t *)); 240 #endif 241 242 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 243 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 244 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 245 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 246 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 247 248 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 249 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 250 251 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 252 253 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 254 255 #define UHCI_INTR_ENDPT 1 256 257 struct usbd_methods uhci_root_ctrl_methods = { 258 uhci_root_ctrl_transfer, 259 uhci_root_ctrl_start, 260 uhci_root_ctrl_abort, 261 uhci_root_ctrl_close, 262 uhci_noop, 263 0, 264 0, 265 }; 266 267 struct usbd_methods uhci_root_intr_methods = { 268 uhci_root_intr_transfer, 269 uhci_root_intr_start, 270 uhci_root_intr_abort, 271 uhci_root_intr_close, 272 uhci_noop, 273 uhci_root_intr_done, 274 0, 275 }; 276 277 struct usbd_methods uhci_device_ctrl_methods = { 278 uhci_device_ctrl_transfer, 279 uhci_device_ctrl_start, 280 uhci_device_ctrl_abort, 281 uhci_device_ctrl_close, 282 uhci_noop, 283 uhci_device_ctrl_done, 284 0, 285 }; 286 287 struct usbd_methods uhci_device_intr_methods = { 288 uhci_device_intr_transfer, 289 uhci_device_intr_start, 290 uhci_device_intr_abort, 291 uhci_device_intr_close, 292 uhci_device_clear_toggle, 293 uhci_device_intr_done, 294 0, 295 }; 296 297 struct usbd_methods uhci_device_bulk_methods = { 298 uhci_device_bulk_transfer, 299 uhci_device_bulk_start, 300 uhci_device_bulk_abort, 301 uhci_device_bulk_close, 302 uhci_device_clear_toggle, 303 uhci_device_bulk_done, 304 0, 305 }; 306 307 struct usbd_methods uhci_device_isoc_methods = { 308 uhci_device_isoc_transfer, 309 uhci_device_isoc_start, 310 uhci_device_isoc_abort, 311 uhci_device_isoc_close, 312 uhci_noop, 313 uhci_device_isoc_done, 314 uhci_device_isoc_setbuf, 315 }; 316 317 void 318 uhci_busreset(sc) 319 uhci_softc_t *sc; 320 { 321 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 322 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 323 UHCICMD(sc, 0); /* do nothing */ 324 } 325 326 usbd_status 327 uhci_init(sc) 328 uhci_softc_t *sc; 329 { 330 usbd_status r; 331 int i, j; 332 uhci_soft_qh_t *csqh, *bsqh, *sqh; 333 uhci_soft_td_t *std; 334 335 DPRINTFN(1,("uhci_init: start\n")); 336 337 #if defined(USB_DEBUG) 338 if (uhcidebug > 2) 339 uhci_dumpregs(sc); 340 #endif 341 342 uhci_run(sc, 0); /* stop the controller */ 343 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 344 345 uhci_busreset(sc); 346 347 /* Allocate and initialize real frame array. */ 348 r = usb_allocmem(sc->sc_dmatag, 349 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 350 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 351 if (r != USBD_NORMAL_COMPLETION) 352 return (r); 353 sc->sc_pframes = KERNADDR(&sc->sc_dma); 354 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 355 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 356 357 /* Allocate the dummy QH where bulk traffic will be queued. */ 358 bsqh = uhci_alloc_sqh(sc); 359 if (!bsqh) 360 return (USBD_NOMEM); 361 bsqh->qh->qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 362 bsqh->qh->qh_elink = LE(UHCI_PTR_T); 363 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 364 365 /* Allocate the dummy QH where control traffic will be queued. */ 366 csqh = uhci_alloc_sqh(sc); 367 if (!csqh) 368 return (USBD_NOMEM); 369 csqh->qh->hlink = bsqh; 370 csqh->qh->qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 371 csqh->qh->qh_elink = LE(UHCI_PTR_T); 372 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 373 374 /* 375 * Make all (virtual) frame list pointers point to the interrupt 376 * queue heads and the interrupt queue heads at the control 377 * queue head and point the physical frame list to the virtual. 378 */ 379 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 380 std = uhci_alloc_std(sc); 381 sqh = uhci_alloc_sqh(sc); 382 if (!std || !sqh) 383 return (USBD_NOMEM); 384 std->td->link.sqh = sqh; 385 std->td->td_link = LE(sqh->physaddr | UHCI_PTR_Q); 386 std->td->td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 387 std->td->td_token = LE(0); 388 std->td->td_buffer = LE(0); 389 sqh->qh->hlink = csqh; 390 sqh->qh->qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 391 sqh->qh->elink = 0; 392 sqh->qh->qh_elink = LE(UHCI_PTR_T); 393 sc->sc_vframes[i].htd = std; 394 sc->sc_vframes[i].etd = std; 395 sc->sc_vframes[i].hqh = sqh; 396 sc->sc_vframes[i].eqh = sqh; 397 for (j = i; 398 j < UHCI_FRAMELIST_COUNT; 399 j += UHCI_VFRAMELIST_COUNT) 400 sc->sc_pframes[j] = LE(std->physaddr); 401 } 402 403 LIST_INIT(&sc->sc_intrhead); 404 405 /* Set up the bus struct. */ 406 sc->sc_bus.open_pipe = uhci_open; 407 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 408 sc->sc_bus.do_poll = uhci_poll; 409 410 sc->sc_suspend = PWR_RESUME; 411 powerhook_establish(uhci_power, sc); 412 413 DPRINTFN(1,("uhci_init: enabling\n")); 414 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 415 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 416 417 return (uhci_run(sc, 1)); /* and here we go... */ 418 } 419 420 #if !defined(__OpenBSD__) 421 /* 422 * Handle suspend/resume. 423 * 424 * We need to switch to polling mode here, because this routine is 425 * called from an intterupt context. This is all right since we 426 * are almost suspended anyway. 427 */ 428 void 429 uhci_power(why, v) 430 int why; 431 void *v; 432 { 433 uhci_softc_t *sc = v; 434 int cmd; 435 int s; 436 437 s = splusb(); 438 cmd = UREAD2(sc, UHCI_CMD); 439 440 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 441 sc, why, sc->sc_suspend, cmd)); 442 443 if (why != PWR_RESUME) { 444 #if defined(USB_DEBUG) 445 if (uhcidebug > 2) 446 uhci_dumpregs(sc); 447 #endif 448 if (sc->sc_has_timo) 449 usb_untimeout(uhci_timo, sc->sc_has_timo, 450 sc->sc_has_timo->timo_handle); 451 sc->sc_bus.use_polling = 1; 452 uhci_run(sc, 0); /* stop the controller */ 453 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 454 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 455 sc->sc_suspend = why; 456 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 457 } else { 458 /* 459 * XXX We should really do much more here in case the 460 * controller registers have been lost and BIOS has 461 * not restored them. 462 */ 463 sc->sc_suspend = why; 464 if (cmd & UHCI_CMD_RS) 465 uhci_run(sc, 0); /* in case BIOS has started it */ 466 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 467 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 468 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 469 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 470 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 471 uhci_run(sc, 1); /* and start traffic again */ 472 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 473 sc->sc_bus.use_polling = 0; 474 if (sc->sc_has_timo) 475 usb_timeout(uhci_timo, sc->sc_has_timo, 476 sc->sc_ival, sc->sc_has_timo->timo_handle); 477 #if defined(USB_DEBUG) 478 if (uhcidebug > 2) 479 uhci_dumpregs(sc); 480 #endif 481 } 482 splx(s); 483 } 484 #endif /* !defined(__OpenBSD__) */ 485 486 #ifdef USB_DEBUG 487 static void 488 uhci_dumpregs(sc) 489 uhci_softc_t *sc; 490 { 491 printf("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 492 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 493 USBDEVNAME(sc->sc_bus.bdev), 494 UREAD2(sc, UHCI_CMD), 495 UREAD2(sc, UHCI_STS), 496 UREAD2(sc, UHCI_INTR), 497 UREAD2(sc, UHCI_FRNUM), 498 UREAD4(sc, UHCI_FLBASEADDR), 499 UREAD1(sc, UHCI_SOF), 500 UREAD2(sc, UHCI_PORTSC1), 501 UREAD2(sc, UHCI_PORTSC2)); 502 } 503 504 int uhci_longtd = 1; 505 506 void 507 uhci_dump_td(p) 508 uhci_soft_td_t *p; 509 { 510 printf("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 511 "token=0x%08lx buffer=0x%08lx\n", 512 p, (long)p->physaddr, 513 (long)LE(p->td->td_link), 514 (long)LE(p->td->td_status), 515 (long)LE(p->td->td_token), 516 (long)LE(p->td->td_buffer)); 517 if (uhci_longtd) 518 printf(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 519 "D=%d,maxlen=%d\n", 520 (int)LE(p->td->td_link), 521 "\20\1T\2Q\3VF", 522 (int)LE(p->td->td_status), 523 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 524 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 525 UHCI_TD_GET_ERRCNT(LE(p->td->td_status)), 526 UHCI_TD_GET_ACTLEN(LE(p->td->td_status)), 527 UHCI_TD_GET_PID(LE(p->td->td_token)), 528 UHCI_TD_GET_DEVADDR(LE(p->td->td_token)), 529 UHCI_TD_GET_ENDPT(LE(p->td->td_token)), 530 UHCI_TD_GET_DT(LE(p->td->td_token)), 531 UHCI_TD_GET_MAXLEN(LE(p->td->td_token))); 532 } 533 534 void 535 uhci_dump_qh(p) 536 uhci_soft_qh_t *p; 537 { 538 printf("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, (int)p->physaddr, 539 LE(p->qh->qh_hlink), LE(p->qh->qh_elink)); 540 } 541 542 543 #if 0 544 void 545 uhci_dump() 546 { 547 uhci_softc_t *sc = uhci; 548 549 uhci_dumpregs(sc); 550 printf("intrs=%d\n", sc->sc_intrs); 551 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 552 uhci_dump_qh(sc->sc_ctl_start->qh->hlink); 553 } 554 #endif 555 556 void 557 uhci_dump_tds(std) 558 uhci_soft_td_t *std; 559 { 560 uhci_soft_td_t *p; 561 562 for(p = std; p; p = p->td->link.std) 563 uhci_dump_td(p); 564 } 565 #endif 566 567 /* 568 * This routine is executed periodically and simulates interrupts 569 * from the root controller interrupt pipe for port status change. 570 */ 571 void 572 uhci_timo(addr) 573 void *addr; 574 { 575 usbd_request_handle reqh = addr; 576 usbd_pipe_handle pipe = reqh->pipe; 577 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 578 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 579 int s; 580 u_char *p; 581 582 DPRINTFN(15, ("uhci_timo\n")); 583 584 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 585 586 p = KERNADDR(&upipe->u.intr.datadma); 587 p[0] = 0; 588 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 589 p[0] |= 1<<1; 590 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 591 p[0] |= 1<<2; 592 if (p[0] == 0) 593 /* No change, try again in a while */ 594 return; 595 596 reqh->actlen = 1; 597 reqh->status = USBD_NORMAL_COMPLETION; 598 s = splusb(); 599 reqh->hcpriv = 0; 600 usb_transfer_complete(reqh); 601 splx(s); 602 } 603 604 void 605 uhci_root_intr_done(reqh) 606 usbd_request_handle reqh; 607 { 608 usbd_pipe_handle pipe = reqh->pipe; 609 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 610 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 611 612 if (!reqh->pipe->repeat) 613 usb_freemem(sc->sc_dmatag, &upipe->u.intr.datadma); 614 } 615 616 617 void 618 uhci_lock_frames(sc) 619 uhci_softc_t *sc; 620 { 621 int s = splusb(); 622 while (sc->sc_vflock) { 623 sc->sc_vflock |= UHCI_WANT_LOCK; 624 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 625 } 626 sc->sc_vflock = UHCI_HAS_LOCK; 627 splx(s); 628 } 629 630 void 631 uhci_unlock_frames(sc) 632 uhci_softc_t *sc; 633 { 634 int s = splusb(); 635 sc->sc_vflock &= ~UHCI_HAS_LOCK; 636 if (sc->sc_vflock & UHCI_WANT_LOCK) 637 wakeup(&sc->sc_vflock); 638 splx(s); 639 } 640 641 /* 642 * Allocate an interrupt information struct. A free list is kept 643 * for fast allocation. 644 */ 645 uhci_intr_info_t * 646 uhci_alloc_intr_info(sc) 647 uhci_softc_t *sc; 648 { 649 uhci_intr_info_t *ii; 650 651 ii = LIST_FIRST(&uhci_ii_free); 652 if (ii) 653 LIST_REMOVE(ii, list); 654 else { 655 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 656 } 657 ii->sc = sc; 658 return ii; 659 } 660 661 void 662 uhci_free_intr_info(ii) 663 uhci_intr_info_t *ii; 664 { 665 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 666 } 667 668 /* Add control QH, called at splusb(). */ 669 void 670 uhci_add_ctrl(sc, sqh) 671 uhci_softc_t *sc; 672 uhci_soft_qh_t *sqh; 673 { 674 uhci_qh_t *eqh; 675 676 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 677 eqh = sc->sc_ctl_end->qh; 678 sqh->qh->hlink = eqh->hlink; 679 sqh->qh->qh_hlink = eqh->qh_hlink; 680 eqh->hlink = sqh; 681 eqh->qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 682 sc->sc_ctl_end = sqh; 683 } 684 685 /* Remove control QH, called at splusb(). */ 686 void 687 uhci_remove_ctrl(sc, sqh) 688 uhci_softc_t *sc; 689 uhci_soft_qh_t *sqh; 690 { 691 uhci_soft_qh_t *pqh; 692 693 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 694 for (pqh = sc->sc_ctl_start; pqh->qh->hlink != sqh; pqh=pqh->qh->hlink) 695 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 696 if (LE(pqh->qh->qh_hlink) & UHCI_PTR_T) { 697 printf("uhci_remove_ctrl: QH not found\n"); 698 return; 699 } 700 #else 701 ; 702 #endif 703 pqh->qh->hlink = sqh->qh->hlink; 704 pqh->qh->qh_hlink = sqh->qh->qh_hlink; 705 if (sc->sc_ctl_end == sqh) 706 sc->sc_ctl_end = pqh; 707 } 708 709 /* Add bulk QH, called at splusb(). */ 710 void 711 uhci_add_bulk(sc, sqh) 712 uhci_softc_t *sc; 713 uhci_soft_qh_t *sqh; 714 { 715 uhci_qh_t *eqh; 716 717 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 718 eqh = sc->sc_bulk_end->qh; 719 sqh->qh->hlink = eqh->hlink; 720 sqh->qh->qh_hlink = eqh->qh_hlink; 721 eqh->hlink = sqh; 722 eqh->qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 723 sc->sc_bulk_end = sqh; 724 } 725 726 /* Remove bulk QH, called at splusb(). */ 727 void 728 uhci_remove_bulk(sc, sqh) 729 uhci_softc_t *sc; 730 uhci_soft_qh_t *sqh; 731 { 732 uhci_soft_qh_t *pqh; 733 734 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 735 for (pqh = sc->sc_bulk_start; 736 pqh->qh->hlink != sqh; 737 pqh = pqh->qh->hlink) 738 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 739 if (LE(pqh->qh->qh_hlink) & UHCI_PTR_T) { 740 printf("uhci_remove_bulk: QH not found\n"); 741 return; 742 } 743 #else 744 ; 745 #endif 746 pqh->qh->hlink = sqh->qh->hlink; 747 pqh->qh->qh_hlink = sqh->qh->qh_hlink; 748 if (sc->sc_bulk_end == sqh) 749 sc->sc_bulk_end = pqh; 750 } 751 752 int 753 uhci_intr(p) 754 void *p; 755 { 756 uhci_softc_t *sc = p; 757 int status, ret; 758 uhci_intr_info_t *ii; 759 760 sc->sc_intrs++; 761 #if defined(USB_DEBUG) 762 if (uhcidebug > 9) { 763 printf("uhci_intr %p\n", sc); 764 uhci_dumpregs(sc); 765 } 766 #endif 767 status = UREAD2(sc, UHCI_STS); 768 #if defined(DIAGNOSTIC) && !defined(__OpenBSD__) 769 if (sc->sc_suspend != PWR_RESUME) 770 printf("uhci_intr: suspended sts=0x%x\n", status); 771 #endif 772 ret = 0; 773 if (status & UHCI_STS_USBINT) { 774 UWRITE2(sc, UHCI_STS, UHCI_STS_USBINT); /* acknowledge */ 775 ret = 1; 776 } 777 if (status & UHCI_STS_USBEI) { 778 UWRITE2(sc, UHCI_STS, UHCI_STS_USBEI); /* acknowledge */ 779 ret = 1; 780 } 781 if (status & UHCI_STS_RD) { 782 UWRITE2(sc, UHCI_STS, UHCI_STS_RD); /* acknowledge */ 783 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 784 ret = 1; 785 } 786 if (status & UHCI_STS_HSE) { 787 UWRITE2(sc, UHCI_STS, UHCI_STS_HSE); /* acknowledge */ 788 printf("%s: Host System Error\n", USBDEVNAME(sc->sc_bus.bdev)); 789 ret = 1; 790 } 791 if (status & UHCI_STS_HCPE) { 792 UWRITE2(sc, UHCI_STS, UHCI_STS_HCPE); /* acknowledge */ 793 printf("%s: Host System Error\n", USBDEVNAME(sc->sc_bus.bdev)); 794 ret = 1; 795 } 796 if (status & UHCI_STS_HCH) 797 printf("%s: controller halted\n", USBDEVNAME(sc->sc_bus.bdev)); 798 if (!ret) 799 return 0; 800 801 /* 802 * Interrupts on UHCI really suck. When the host controller 803 * interrupts because a transfer is completed there is no 804 * way of knowing which transfer it was. You can scan down 805 * the TDs and QHs of the previous frame to limit the search, 806 * but that assumes that the interrupt was not delayed by more 807 * than 1 ms, which may not always be true (e.g. after debug 808 * output on a slow console). 809 * We scan all interrupt descriptors to see if any have 810 * completed. 811 */ 812 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 813 uhci_check_intr(sc, ii); 814 815 DPRINTFN(10, ("uhci_intr: exit\n")); 816 return 1; 817 } 818 819 /* Check for an interrupt. */ 820 void 821 uhci_check_intr(sc, ii) 822 uhci_softc_t *sc; 823 uhci_intr_info_t *ii; 824 { 825 uhci_soft_td_t *std, *lstd; 826 u_int32_t status; 827 828 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 829 #ifdef DIAGNOSTIC 830 if (!ii) { 831 printf("uhci_check_intr: no ii? %p\n", ii); 832 return; 833 } 834 #endif 835 if (!ii->stdstart) 836 return; 837 lstd = ii->stdend; 838 #ifdef DIAGNOSTIC 839 if (!lstd) { 840 printf("uhci_check_intr: std==0\n"); 841 return; 842 } 843 #endif 844 /* 845 * If the last TD is still active we need to check whether there 846 * is a an error somewhere in the middle, or whether there was a 847 * short packet (SPD and not ACTIVE). 848 */ 849 if (LE(lstd->td->td_status) & UHCI_TD_ACTIVE) { 850 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 851 for (std = ii->stdstart; std != lstd; std = std->td->link.std){ 852 status = LE(std->td->td_status); 853 if ((status & UHCI_TD_STALLED) || 854 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 855 UHCI_TD_SPD) 856 goto done; 857 } 858 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 859 ii, ii->stdstart)); 860 return; 861 } 862 done: 863 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 864 uhci_idone(ii); 865 } 866 867 void 868 uhci_idone(ii) 869 uhci_intr_info_t *ii; 870 { 871 usbd_request_handle reqh = ii->reqh; 872 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 873 uhci_soft_td_t *std; 874 u_int32_t status; 875 int actlen; 876 877 #ifdef USB_DEBUG 878 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 879 if (uhcidebug > 10) 880 uhci_dump_tds(ii->stdstart); 881 #endif 882 883 if (reqh->status == USBD_CANCELLED || 884 reqh->status == USBD_TIMEOUT) { 885 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 886 return; 887 } 888 889 #ifdef DIAGNOSTIC 890 { 891 int s = splhigh(); 892 if (ii->isdone) { 893 splx(s); 894 printf("uhci_idone: ii=%p is done!\n", ii); 895 return; 896 } 897 ii->isdone = 1; 898 splx(s); 899 } 900 #endif 901 902 /* The transfer is done, compute actual length and status. */ 903 /* XXX Is this correct for control xfers? */ 904 actlen = 0; 905 for (std = ii->stdstart; std; std = std->td->link.std) { 906 status = LE(std->td->td_status); 907 if (status & UHCI_TD_ACTIVE) 908 break; 909 if (UHCI_TD_GET_PID(LE(std->td->td_token)) != 910 UHCI_TD_PID_SETUP) 911 actlen += UHCI_TD_GET_ACTLEN(status); 912 } 913 /* If there are left over TDs we need to update the toggle. */ 914 if (std) 915 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td->td_token)); 916 917 status &= UHCI_TD_ERROR; 918 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 919 actlen, status)); 920 reqh->actlen = actlen; 921 if (status != 0) { 922 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 923 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 924 "status 0x%b\n", 925 reqh->pipe->device->address, 926 reqh->pipe->endpoint->edesc->bEndpointAddress, 927 (int)status, 928 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 929 "STALLED\30ACTIVE")); 930 if (status == UHCI_TD_STALLED) 931 reqh->status = USBD_STALLED; 932 else 933 reqh->status = USBD_IOERROR; /* more info XXX */ 934 } else { 935 reqh->status = USBD_NORMAL_COMPLETION; 936 } 937 reqh->hcpriv = ii; 938 usb_transfer_complete(reqh); 939 } 940 941 /* 942 * Called when a request does not complete. 943 */ 944 void 945 uhci_timeout(addr) 946 void *addr; 947 { 948 uhci_intr_info_t *ii = addr; 949 950 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 951 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 952 } 953 954 /* 955 * Wait here until controller claims to have an interrupt. 956 * Then call uhci_intr and return. Use timeout to avoid waiting 957 * too long. 958 * Only used during boot when interrupts are not enabled yet. 959 */ 960 void 961 uhci_waitintr(sc, reqh) 962 uhci_softc_t *sc; 963 usbd_request_handle reqh; 964 { 965 int timo = reqh->timeout; 966 uhci_intr_info_t *ii; 967 968 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 969 970 reqh->status = USBD_IN_PROGRESS; 971 for (; timo >= 0; timo--) { 972 usb_delay_ms(&sc->sc_bus, 1); 973 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 974 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 975 uhci_intr(sc); 976 if (reqh->status != USBD_IN_PROGRESS) 977 return; 978 } 979 } 980 981 /* Timeout */ 982 DPRINTF(("uhci_waitintr: timeout\n")); 983 for (ii = LIST_FIRST(&sc->sc_intrhead); 984 ii && ii->reqh != reqh; 985 ii = LIST_NEXT(ii, list)) 986 ; 987 #ifdef DIAGNOSTIC 988 if (!ii) 989 panic("uhci_waitintr: lost intr_info\n"); 990 #endif 991 uhci_idone(ii); 992 } 993 994 void 995 uhci_poll(bus) 996 struct usbd_bus *bus; 997 { 998 uhci_softc_t *sc = (uhci_softc_t *)bus; 999 1000 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1001 uhci_intr(sc); 1002 } 1003 1004 #if 0 1005 void 1006 uhci_reset(p) 1007 void *p; 1008 { 1009 uhci_softc_t *sc = p; 1010 int n; 1011 1012 UHCICMD(sc, UHCI_CMD_HCRESET); 1013 /* The reset bit goes low when the controller is done. */ 1014 for (n = 0; n < UHCI_RESET_TIMEOUT && 1015 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1016 delay(100); 1017 if (n >= UHCI_RESET_TIMEOUT) 1018 printf("%s: controller did not reset\n", 1019 USBDEVNAME(sc->sc_bus.bdev)); 1020 } 1021 #endif 1022 1023 usbd_status 1024 uhci_run(sc, run) 1025 uhci_softc_t *sc; 1026 int run; 1027 { 1028 int s, n, running; 1029 1030 run = run != 0; 1031 s = splusb(); 1032 DPRINTF(("uhci_run: setting run=%d\n", run)); 1033 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1034 for(n = 0; n < 10; n++) { 1035 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1036 /* return when we've entered the state we want */ 1037 if (run == running) { 1038 splx(s); 1039 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1040 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1041 return (USBD_NORMAL_COMPLETION); 1042 } 1043 usb_delay_ms(&sc->sc_bus, 1); 1044 } 1045 splx(s); 1046 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1047 run ? "start" : "stop"); 1048 return (USBD_IOERROR); 1049 } 1050 1051 /* 1052 * Memory management routines. 1053 * uhci_alloc_std allocates TDs 1054 * uhci_alloc_sqh allocates QHs 1055 * These two routines do their own free list management, 1056 * partly for speed, partly because allocating DMAable memory 1057 * has page size granularaity so much memory would be wasted if 1058 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1059 */ 1060 1061 uhci_soft_td_t * 1062 uhci_alloc_std(sc) 1063 uhci_softc_t *sc; 1064 { 1065 uhci_soft_td_t *std; 1066 usbd_status r; 1067 int i; 1068 usb_dma_t dma; 1069 1070 if (!sc->sc_freetds) { 1071 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1072 std = malloc(sizeof(uhci_soft_td_t) * UHCI_TD_CHUNK, 1073 M_USBHC, M_NOWAIT); 1074 if (!std) 1075 return (0); 1076 r = usb_allocmem(sc->sc_dmatag, UHCI_TD_SIZE * UHCI_TD_CHUNK, 1077 UHCI_TD_ALIGN, &dma); 1078 if (r != USBD_NORMAL_COMPLETION) { 1079 free(std, M_USBHC); 1080 return (0); 1081 } 1082 for(i = 0; i < UHCI_TD_CHUNK; i++, std++) { 1083 std->physaddr = DMAADDR(&dma) + i * UHCI_TD_SIZE; 1084 std->td = (uhci_td_t *) 1085 ((char *)KERNADDR(&dma) + i * UHCI_TD_SIZE); 1086 std->td->link.std = sc->sc_freetds; 1087 sc->sc_freetds = std; 1088 } 1089 } 1090 std = sc->sc_freetds; 1091 sc->sc_freetds = std->td->link.std; 1092 memset(std->td, 0, UHCI_TD_SIZE); 1093 return std; 1094 } 1095 1096 void 1097 uhci_free_std(sc, std) 1098 uhci_softc_t *sc; 1099 uhci_soft_td_t *std; 1100 { 1101 #ifdef DIAGNOSTIC 1102 #define TD_IS_FREE 0x12345678 1103 if (LE(std->td->td_token) == TD_IS_FREE) { 1104 printf("uhci_free_std: freeing free TD %p\n", std); 1105 return; 1106 } 1107 std->td->td_token = LE(TD_IS_FREE); 1108 #endif 1109 std->td->link.std = sc->sc_freetds; 1110 sc->sc_freetds = std; 1111 } 1112 1113 uhci_soft_qh_t * 1114 uhci_alloc_sqh(sc) 1115 uhci_softc_t *sc; 1116 { 1117 uhci_soft_qh_t *sqh; 1118 usbd_status r; 1119 int i, offs; 1120 usb_dma_t dma; 1121 1122 if (!sc->sc_freeqhs) { 1123 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1124 sqh = malloc(sizeof(uhci_soft_qh_t) * UHCI_QH_CHUNK, 1125 M_USBHC, M_NOWAIT); 1126 if (!sqh) 1127 return 0; 1128 r = usb_allocmem(sc->sc_dmatag, UHCI_QH_SIZE * UHCI_QH_CHUNK, 1129 UHCI_QH_ALIGN, &dma); 1130 if (r != USBD_NORMAL_COMPLETION) { 1131 free(sqh, M_USBHC); 1132 return 0; 1133 } 1134 for(i = 0; i < UHCI_QH_CHUNK; i++, sqh++) { 1135 offs = i * UHCI_QH_SIZE; 1136 sqh->physaddr = DMAADDR(&dma) + offs; 1137 sqh->qh = (uhci_qh_t *) 1138 ((char *)KERNADDR(&dma) + offs); 1139 sqh->qh->hlink = sc->sc_freeqhs; 1140 sc->sc_freeqhs = sqh; 1141 } 1142 } 1143 sqh = sc->sc_freeqhs; 1144 sc->sc_freeqhs = sqh->qh->hlink; 1145 memset(sqh->qh, 0, UHCI_QH_SIZE); 1146 return (sqh); 1147 } 1148 1149 void 1150 uhci_free_sqh(sc, sqh) 1151 uhci_softc_t *sc; 1152 uhci_soft_qh_t *sqh; 1153 { 1154 sqh->qh->hlink = sc->sc_freeqhs; 1155 sc->sc_freeqhs = sqh; 1156 } 1157 1158 #if 0 1159 /* 1160 * Enter a list of transfers onto a control queue. 1161 * Called at splusb() 1162 */ 1163 void 1164 uhci_enter_ctl_q(sc, sqh, ii) 1165 uhci_softc_t *sc; 1166 uhci_soft_qh_t *sqh; 1167 uhci_intr_info_t *ii; 1168 { 1169 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1170 1171 } 1172 #endif 1173 1174 void 1175 uhci_free_std_chain(sc, std, stdend) 1176 uhci_softc_t *sc; 1177 uhci_soft_td_t *std; 1178 uhci_soft_td_t *stdend; 1179 { 1180 uhci_soft_td_t *p; 1181 1182 for (; std != stdend; std = p) { 1183 p = std->td->link.std; 1184 uhci_free_std(sc, std); 1185 } 1186 } 1187 1188 usbd_status 1189 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1190 struct uhci_pipe *upipe; 1191 uhci_softc_t *sc; 1192 int len, rd, shortok; 1193 usb_dma_t *dma; 1194 uhci_soft_td_t **sp, **ep; 1195 { 1196 uhci_soft_td_t *p, *lastp; 1197 uhci_physaddr_t lastlink; 1198 int i, ntd, l, tog, maxp; 1199 u_int32_t status; 1200 int addr = upipe->pipe.device->address; 1201 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1202 1203 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1204 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1205 upipe->pipe.device->lowspeed, shortok)); 1206 if (len == 0) { 1207 *sp = *ep = 0; 1208 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1209 return (USBD_NORMAL_COMPLETION); 1210 } 1211 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1212 if (maxp == 0) { 1213 printf("uhci_alloc_std_chain: maxp=0\n"); 1214 return (USBD_INVAL); 1215 } 1216 ntd = (len + maxp - 1) / maxp; 1217 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1218 tog = upipe->nexttoggle; 1219 if (ntd % 2 == 0) 1220 tog ^= 1; 1221 upipe->nexttoggle = tog ^ 1; 1222 lastp = 0; 1223 lastlink = UHCI_PTR_T; 1224 ntd--; 1225 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1226 if (upipe->pipe.device->lowspeed) 1227 status |= UHCI_TD_LS; 1228 if (shortok) 1229 status |= UHCI_TD_SPD; 1230 for (i = ntd; i >= 0; i--) { 1231 p = uhci_alloc_std(sc); 1232 if (!p) { 1233 uhci_free_std_chain(sc, lastp, 0); 1234 return (USBD_NOMEM); 1235 } 1236 p->td->link.std = lastp; 1237 p->td->td_link = LE(lastlink); 1238 lastp = p; 1239 lastlink = p->physaddr; 1240 p->td->td_status = LE(status); 1241 if (i == ntd) { 1242 /* last TD */ 1243 l = len % maxp; 1244 if (l == 0) l = maxp; 1245 *ep = p; 1246 } else 1247 l = maxp; 1248 p->td->td_token = 1249 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1250 UHCI_TD_OUT(l, endpt, addr, tog)); 1251 p->td->td_buffer = LE(DMAADDR(dma) + i * maxp); 1252 tog ^= 1; 1253 } 1254 *sp = lastp; 1255 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1256 upipe->nexttoggle)); 1257 return (USBD_NORMAL_COMPLETION); 1258 } 1259 1260 void 1261 uhci_device_clear_toggle(pipe) 1262 usbd_pipe_handle pipe; 1263 { 1264 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1265 upipe->nexttoggle = 0; 1266 } 1267 1268 void 1269 uhci_noop(pipe) 1270 usbd_pipe_handle pipe; 1271 { 1272 } 1273 1274 usbd_status 1275 uhci_device_bulk_transfer(reqh) 1276 usbd_request_handle reqh; 1277 { 1278 int s; 1279 usbd_status r; 1280 1281 s = splusb(); 1282 r = usb_insert_transfer(reqh); 1283 splx(s); 1284 if (r != USBD_NORMAL_COMPLETION) 1285 return (r); 1286 else 1287 return (uhci_device_bulk_start(reqh)); 1288 } 1289 1290 usbd_status 1291 uhci_device_bulk_start(reqh) 1292 usbd_request_handle reqh; 1293 { 1294 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1295 usbd_device_handle dev = upipe->pipe.device; 1296 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1297 uhci_intr_info_t *ii = upipe->iinfo; 1298 uhci_soft_td_t *xfer, *xferend; 1299 uhci_soft_qh_t *sqh; 1300 usb_dma_t *dmap; 1301 usbd_status r; 1302 int len, isread; 1303 int s; 1304 1305 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p buf=%p len=%d " 1306 "flags=%d\n", 1307 reqh, reqh->buffer, reqh->length, reqh->flags)); 1308 1309 if (reqh->isreq) 1310 panic("uhci_device_bulk_transfer: a request\n"); 1311 1312 len = reqh->length; 1313 dmap = &upipe->u.bulk.datadma; 1314 isread = reqh->pipe->endpoint->edesc->bEndpointAddress & UE_IN; 1315 sqh = upipe->u.bulk.sqh; 1316 1317 upipe->u.bulk.isread = isread; 1318 upipe->u.bulk.length = len; 1319 1320 r = usb_allocmem(sc->sc_dmatag, len, 0, dmap); 1321 if (r != USBD_NORMAL_COMPLETION) 1322 goto ret1; 1323 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1324 reqh->flags & USBD_SHORT_XFER_OK, 1325 dmap, &xfer, &xferend); 1326 if (r != USBD_NORMAL_COMPLETION) 1327 goto ret2; 1328 xferend->td->td_status |= LE(UHCI_TD_IOC); 1329 1330 if (!isread && len != 0) 1331 memcpy(KERNADDR(dmap), reqh->buffer, len); 1332 1333 #ifdef USB_DEBUG 1334 if (uhcidebug > 8) { 1335 printf("uhci_device_bulk_transfer: xfer(1)\n"); 1336 uhci_dump_tds(xfer); 1337 } 1338 #endif 1339 1340 /* Set up interrupt info. */ 1341 ii->reqh = reqh; 1342 ii->stdstart = xfer; 1343 ii->stdend = xferend; 1344 #ifdef DIAGNOSTIC 1345 ii->isdone = 0; 1346 #endif 1347 1348 sqh->qh->elink = xfer; 1349 sqh->qh->qh_elink = LE(xfer->physaddr); 1350 sqh->intr_info = ii; 1351 1352 s = splusb(); 1353 uhci_add_bulk(sc, sqh); 1354 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1355 1356 if (reqh->timeout && !sc->sc_bus.use_polling) { 1357 usb_timeout(uhci_timeout, ii, 1358 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1359 } 1360 splx(s); 1361 1362 #ifdef USB_DEBUG 1363 if (uhcidebug > 10) { 1364 printf("uhci_device_bulk_transfer: xfer(2)\n"); 1365 uhci_dump_tds(xfer); 1366 } 1367 #endif 1368 1369 if (sc->sc_bus.use_polling) 1370 uhci_waitintr(sc, reqh); 1371 1372 return (USBD_IN_PROGRESS); 1373 1374 ret2: 1375 if (len != 0) 1376 usb_freemem(sc->sc_dmatag, dmap); 1377 ret1: 1378 return (r); 1379 } 1380 1381 /* Abort a device bulk request. */ 1382 void 1383 uhci_device_bulk_abort(reqh) 1384 usbd_request_handle reqh; 1385 { 1386 DPRINTF(("uhci_device_bulk_abort:\n")); 1387 uhci_abort_req(reqh, USBD_CANCELLED); 1388 } 1389 1390 void 1391 uhci_abort_req(reqh, status) 1392 usbd_request_handle reqh; 1393 usbd_status status; 1394 { 1395 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1396 uhci_intr_info_t *ii = upipe->iinfo; 1397 uhci_soft_td_t *std; 1398 1399 /* Make interrupt routine ignore it, */ 1400 reqh->status = status; 1401 1402 /* don't timeout, */ 1403 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1404 1405 /* make hardware ignore it, */ 1406 for (std = ii->stdstart; std != 0; std = std->td->link.std) 1407 std->td->td_status &= LE(~UHCI_TD_ACTIVE); 1408 1409 reqh->hcpriv = ii; 1410 1411 /* make sure hardware has completed, */ 1412 if (curproc) { 1413 usb_delay_ms(reqh->pipe->device->bus, 1); 1414 /* and call final part of interrupt handler. */ 1415 uhci_abort_req_end(reqh); 1416 } else { 1417 /* We have no process context, so we can't use tsleep(). */ 1418 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1419 } 1420 } 1421 1422 void 1423 uhci_abort_req_end(v) 1424 void *v; 1425 { 1426 usbd_request_handle reqh = v; 1427 int s; 1428 1429 s = splusb(); 1430 usb_transfer_complete(reqh); 1431 splx(s); 1432 } 1433 1434 /* Close a device bulk pipe. */ 1435 void 1436 uhci_device_bulk_close(pipe) 1437 usbd_pipe_handle pipe; 1438 { 1439 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1440 usbd_device_handle dev = upipe->pipe.device; 1441 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1442 1443 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1444 uhci_free_intr_info(upipe->iinfo); 1445 /* XXX free other resources */ 1446 } 1447 1448 usbd_status 1449 uhci_device_ctrl_transfer(reqh) 1450 usbd_request_handle reqh; 1451 { 1452 int s; 1453 usbd_status r; 1454 1455 s = splusb(); 1456 r = usb_insert_transfer(reqh); 1457 splx(s); 1458 if (r != USBD_NORMAL_COMPLETION) 1459 return (r); 1460 else 1461 return (uhci_device_ctrl_start(reqh)); 1462 } 1463 1464 usbd_status 1465 uhci_device_ctrl_start(reqh) 1466 usbd_request_handle reqh; 1467 { 1468 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1469 usbd_status r; 1470 1471 if (!reqh->isreq) 1472 panic("uhci_device_ctrl_transfer: not a request\n"); 1473 1474 r = uhci_device_request(reqh); 1475 if (r != USBD_NORMAL_COMPLETION) 1476 return (r); 1477 1478 if (sc->sc_bus.use_polling) 1479 uhci_waitintr(sc, reqh); 1480 return (USBD_IN_PROGRESS); 1481 } 1482 1483 usbd_status 1484 uhci_device_intr_transfer(reqh) 1485 usbd_request_handle reqh; 1486 { 1487 int s; 1488 usbd_status r; 1489 1490 s = splusb(); 1491 r = usb_insert_transfer(reqh); 1492 splx(s); 1493 if (r != USBD_NORMAL_COMPLETION) 1494 return (r); 1495 else 1496 return (uhci_device_intr_start(reqh)); 1497 } 1498 1499 usbd_status 1500 uhci_device_intr_start(reqh) 1501 usbd_request_handle reqh; 1502 { 1503 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1504 usbd_device_handle dev = upipe->pipe.device; 1505 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1506 uhci_intr_info_t *ii = upipe->iinfo; 1507 uhci_soft_td_t *xfer, *xferend; 1508 uhci_soft_qh_t *sqh; 1509 usb_dma_t *dmap; 1510 usbd_status r; 1511 int len, i; 1512 int s; 1513 1514 DPRINTFN(3, ("uhci_device_intr_transfer: reqh=%p buf=%p len=%d " 1515 "flags=%d\n", 1516 reqh, reqh->buffer, reqh->length, reqh->flags)); 1517 1518 if (reqh->isreq) 1519 panic("uhci_device_intr_transfer: a request\n"); 1520 1521 len = reqh->length; 1522 dmap = &upipe->u.intr.datadma; 1523 if (len == 0) 1524 return (USBD_INVAL); /* XXX should it be? */ 1525 1526 r = usb_allocmem(sc->sc_dmatag, len, 0, dmap); 1527 if (r != USBD_NORMAL_COMPLETION) 1528 goto ret1; 1529 r = uhci_alloc_std_chain(upipe, sc, len, 1, 1530 reqh->flags & USBD_SHORT_XFER_OK, 1531 dmap, &xfer, &xferend); 1532 if (r != USBD_NORMAL_COMPLETION) 1533 goto ret2; 1534 xferend->td->td_status |= LE(UHCI_TD_IOC); 1535 1536 #ifdef USB_DEBUG 1537 if (uhcidebug > 10) { 1538 printf("uhci_device_intr_transfer: xfer(1)\n"); 1539 uhci_dump_tds(xfer); 1540 uhci_dump_qh(upipe->u.intr.qhs[0]); 1541 } 1542 #endif 1543 1544 s = splusb(); 1545 /* Set up interrupt info. */ 1546 ii->reqh = reqh; 1547 ii->stdstart = xfer; 1548 ii->stdend = xferend; 1549 #ifdef DIAGNOSTIC 1550 ii->isdone = 0; 1551 #endif 1552 1553 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1554 upipe->u.intr.qhs[0])); 1555 for (i = 0; i < upipe->u.intr.npoll; i++) { 1556 sqh = upipe->u.intr.qhs[i]; 1557 sqh->qh->elink = xfer; 1558 sqh->qh->qh_elink = LE(xfer->physaddr); 1559 } 1560 splx(s); 1561 1562 #ifdef USB_DEBUG 1563 if (uhcidebug > 10) { 1564 printf("uhci_device_intr_transfer: xfer(2)\n"); 1565 uhci_dump_tds(xfer); 1566 uhci_dump_qh(upipe->u.intr.qhs[0]); 1567 } 1568 #endif 1569 1570 return (USBD_IN_PROGRESS); 1571 1572 ret2: 1573 if (len != 0) 1574 usb_freemem(sc->sc_dmatag, dmap); 1575 ret1: 1576 return (r); 1577 } 1578 1579 /* Abort a device control request. */ 1580 void 1581 uhci_device_ctrl_abort(reqh) 1582 usbd_request_handle reqh; 1583 { 1584 DPRINTF(("uhci_device_ctrl_abort:\n")); 1585 uhci_abort_req(reqh, USBD_CANCELLED); 1586 } 1587 1588 /* Close a device control pipe. */ 1589 void 1590 uhci_device_ctrl_close(pipe) 1591 usbd_pipe_handle pipe; 1592 { 1593 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1594 1595 uhci_free_intr_info(upipe->iinfo); 1596 /* XXX free other resources */ 1597 } 1598 1599 /* Abort a device interrupt request. */ 1600 void 1601 uhci_device_intr_abort(reqh) 1602 usbd_request_handle reqh; 1603 { 1604 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1605 if (reqh->pipe->intrreqh == reqh) { 1606 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1607 reqh->pipe->intrreqh = 0; 1608 } 1609 uhci_abort_req(reqh, USBD_CANCELLED); 1610 } 1611 1612 /* Close a device interrupt pipe. */ 1613 void 1614 uhci_device_intr_close(pipe) 1615 usbd_pipe_handle pipe; 1616 { 1617 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1618 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1619 int i, s, npoll; 1620 1621 upipe->iinfo->stdstart = 0; /* inactive */ 1622 1623 /* Unlink descriptors from controller data structures. */ 1624 npoll = upipe->u.intr.npoll; 1625 uhci_lock_frames(sc); 1626 for (i = 0; i < npoll; i++) 1627 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1628 upipe->u.intr.qhs[i]); 1629 uhci_unlock_frames(sc); 1630 1631 /* 1632 * We now have to wait for any activity on the physical 1633 * descriptors to stop. 1634 */ 1635 usb_delay_ms(&sc->sc_bus, 2); 1636 1637 for(i = 0; i < npoll; i++) 1638 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1639 free(upipe->u.intr.qhs, M_USBHC); 1640 1641 s = splusb(); 1642 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1643 splx(s); 1644 uhci_free_intr_info(upipe->iinfo); 1645 1646 /* XXX free other resources */ 1647 } 1648 1649 usbd_status 1650 uhci_device_request(reqh) 1651 usbd_request_handle reqh; 1652 { 1653 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1654 usb_device_request_t *req = &reqh->request; 1655 usbd_device_handle dev = upipe->pipe.device; 1656 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1657 int addr = dev->address; 1658 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1659 uhci_intr_info_t *ii = upipe->iinfo; 1660 uhci_soft_td_t *setup, *xfer, *stat, *next, *xferend; 1661 uhci_soft_qh_t *sqh; 1662 usb_dma_t *dmap; 1663 int len; 1664 u_int32_t ls; 1665 usbd_status r; 1666 int isread; 1667 int s; 1668 1669 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1670 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1671 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1672 UGETW(req->wIndex), UGETW(req->wLength), 1673 addr, endpt)); 1674 1675 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1676 isread = req->bmRequestType & UT_READ; 1677 len = UGETW(req->wLength); 1678 1679 setup = upipe->u.ctl.setup; 1680 stat = upipe->u.ctl.stat; 1681 sqh = upipe->u.ctl.sqh; 1682 dmap = &upipe->u.ctl.datadma; 1683 1684 /* Set up data transaction */ 1685 if (len != 0) { 1686 r = usb_allocmem(sc->sc_dmatag, len, 0, dmap); 1687 if (r != USBD_NORMAL_COMPLETION) 1688 goto ret1; 1689 upipe->nexttoggle = 1; 1690 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1691 reqh->flags & USBD_SHORT_XFER_OK, 1692 dmap, &xfer, &xferend); 1693 if (r != USBD_NORMAL_COMPLETION) 1694 goto ret2; 1695 next = xfer; 1696 xferend->td->link.std = stat; 1697 xferend->td->td_link = LE(stat->physaddr); 1698 } else { 1699 next = stat; 1700 } 1701 upipe->u.ctl.length = len; 1702 1703 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1704 if (!isread && len != 0) 1705 memcpy(KERNADDR(dmap), reqh->buffer, len); 1706 1707 setup->td->link.std = next; 1708 setup->td->td_link = LE(next->physaddr); 1709 setup->td->td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1710 setup->td->td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1711 setup->td->td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1712 1713 stat->td->link.std = 0; 1714 stat->td->td_link = LE(UHCI_PTR_T); 1715 stat->td->td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1716 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1717 stat->td->td_token = 1718 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1719 UHCI_TD_IN (0, endpt, addr, 1)); 1720 stat->td->td_buffer = LE(0); 1721 1722 #ifdef USB_DEBUG 1723 if (uhcidebug > 20) { 1724 printf("uhci_device_request: before transfer\n"); 1725 uhci_dump_tds(setup); 1726 } 1727 #endif 1728 1729 /* Set up interrupt info. */ 1730 ii->reqh = reqh; 1731 ii->stdstart = setup; 1732 ii->stdend = stat; 1733 #ifdef DIAGNOSTIC 1734 ii->isdone = 0; 1735 #endif 1736 1737 sqh->qh->elink = setup; 1738 sqh->qh->qh_elink = LE(setup->physaddr); 1739 sqh->intr_info = ii; 1740 1741 s = splusb(); 1742 uhci_add_ctrl(sc, sqh); 1743 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1744 #ifdef USB_DEBUG 1745 if (uhcidebug > 12) { 1746 uhci_soft_td_t *std; 1747 uhci_soft_qh_t *xqh; 1748 uhci_soft_qh_t *sxqh; 1749 int maxqh = 0; 1750 uhci_physaddr_t link; 1751 printf("uhci_enter_ctl_q: follow from [0]\n"); 1752 for (std = sc->sc_vframes[0].htd, link = 0; 1753 (link & UHCI_PTR_Q) == 0; 1754 std = std->td->link.std) { 1755 link = LE(std->td->td_link); 1756 uhci_dump_td(std); 1757 } 1758 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1759 xqh; 1760 xqh = (maxqh++ == 5 || xqh->qh->hlink==sxqh || 1761 xqh->qh->hlink==xqh ? NULL : xqh->qh->hlink)) { 1762 uhci_dump_qh(xqh); 1763 uhci_dump_qh(sxqh); 1764 } 1765 printf("Enqueued QH:\n"); 1766 uhci_dump_qh(sqh); 1767 uhci_dump_tds(sqh->qh->elink); 1768 } 1769 #endif 1770 if (reqh->timeout && !sc->sc_bus.use_polling) { 1771 usb_timeout(uhci_timeout, ii, 1772 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1773 } 1774 splx(s); 1775 1776 return (USBD_NORMAL_COMPLETION); 1777 1778 ret2: 1779 if (len != 0) 1780 usb_freemem(sc->sc_dmatag, dmap); 1781 ret1: 1782 return (r); 1783 } 1784 1785 usbd_status 1786 uhci_device_isoc_transfer(reqh) 1787 usbd_request_handle reqh; 1788 { 1789 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1790 #ifdef USB_DEBUG 1791 usbd_device_handle dev = upipe->pipe.device; 1792 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1793 #endif 1794 1795 DPRINTFN(1,("uhci_device_isoc_transfer: sc=%p\n", sc)); 1796 if (upipe->u.iso.bufsize == 0) 1797 return (USBD_INVAL); 1798 1799 /* XXX copy data */ 1800 return (USBD_XXX); 1801 } 1802 1803 usbd_status 1804 uhci_device_isoc_start(reqh) 1805 usbd_request_handle reqh; 1806 { 1807 return (USBD_XXX); 1808 } 1809 1810 void 1811 uhci_device_isoc_abort(reqh) 1812 usbd_request_handle reqh; 1813 { 1814 /* XXX Can't abort this. */ 1815 } 1816 1817 void 1818 uhci_device_isoc_close(pipe) 1819 usbd_pipe_handle pipe; 1820 { 1821 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1822 usbd_device_handle dev = upipe->pipe.device; 1823 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1824 struct iso *iso; 1825 int i; 1826 1827 /* 1828 * Make sure all TDs are marked as inactive. 1829 * Wait for completion. 1830 * Unschedule. 1831 * Deallocate. 1832 */ 1833 iso = &upipe->u.iso; 1834 1835 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 1836 iso->stds[i]->td->td_status &= LE(~UHCI_TD_ACTIVE); 1837 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 1838 1839 uhci_lock_frames(sc); 1840 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 1841 uhci_soft_td_t *std, *vstd; 1842 1843 std = iso->stds[i]; 1844 for (vstd = sc->sc_vframes[i % UHCI_VFRAMELIST_COUNT].htd; 1845 vstd && vstd->td->link.std != std; 1846 vstd = vstd->td->link.std) 1847 ; 1848 if (!vstd) { 1849 /*panic*/ 1850 printf("uhci_device_isoc_close: %p not found\n", std); 1851 uhci_unlock_frames(sc); 1852 return; 1853 } 1854 vstd->td->link = std->td->link; 1855 vstd->td->td_link = std->td->td_link; 1856 uhci_free_std(sc, std); 1857 } 1858 uhci_unlock_frames(sc); 1859 1860 for (i = 0; i < iso->nbuf; i++) 1861 usb_freemem(sc->sc_dmatag, &iso->bufs[i]); 1862 free(iso->stds, M_USBHC); 1863 free(iso->bufs, M_USBHC); 1864 1865 /* XXX what else? */ 1866 } 1867 1868 usbd_status 1869 uhci_device_isoc_setbuf(pipe, bufsize, nbuf) 1870 usbd_pipe_handle pipe; 1871 u_int bufsize; 1872 u_int nbuf; 1873 { 1874 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1875 usbd_device_handle dev = upipe->pipe.device; 1876 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1877 int addr = upipe->pipe.device->address; 1878 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1879 int rd = upipe->pipe.endpoint->edesc->bEndpointAddress & UE_IN; 1880 struct iso *iso; 1881 int i; 1882 usbd_status r; 1883 1884 /* 1885 * For simplicity the number of buffers must fit nicely in the frame 1886 * list. 1887 */ 1888 if (UHCI_VFRAMELIST_COUNT % nbuf != 0) 1889 return (USBD_INVAL); 1890 1891 iso = &upipe->u.iso; 1892 iso->bufsize = bufsize; 1893 iso->nbuf = nbuf; 1894 1895 /* Allocate memory for buffers. */ 1896 iso->bufs = malloc(nbuf * sizeof(usb_dma_t), M_USBHC, M_WAITOK); 1897 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 1898 M_USBHC, M_WAITOK); 1899 1900 for (i = 0; i < nbuf; i++) { 1901 r = usb_allocmem(sc->sc_dmatag, bufsize, 0, &iso->bufs[i]); 1902 if (r != USBD_NORMAL_COMPLETION) { 1903 nbuf = i; 1904 goto bad1; 1905 } 1906 } 1907 1908 /* Allocate the TDs. */ 1909 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 1910 iso->stds[i] = uhci_alloc_std(sc); 1911 if (iso->stds[i] == 0) 1912 goto bad2; 1913 } 1914 1915 /* XXX check schedule */ 1916 1917 /* XXX interrupts */ 1918 1919 /* Insert TDs into schedule, all marked inactive. */ 1920 uhci_lock_frames(sc); 1921 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 1922 uhci_soft_td_t *std, *vstd; 1923 1924 std = iso->stds[i]; 1925 std->td->td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 1926 std->td->td_token = 1927 LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 1928 UHCI_TD_OUT(0, endpt, addr, 0)); 1929 std->td->td_buffer = LE(DMAADDR(&iso->bufs[i % nbuf])); 1930 1931 vstd = sc->sc_vframes[i % UHCI_VFRAMELIST_COUNT].htd; 1932 std->td->link = vstd->td->link; 1933 std->td->td_link = vstd->td->td_link; 1934 vstd->td->link.std = std; 1935 vstd->td->td_link = LE(std->physaddr); 1936 } 1937 uhci_unlock_frames(sc); 1938 1939 return (USBD_NORMAL_COMPLETION); 1940 1941 bad2: 1942 while (--i >= 0) 1943 uhci_free_std(sc, iso->stds[i]); 1944 bad1: 1945 for (i = 0; i < nbuf; i++) 1946 usb_freemem(sc->sc_dmatag, &iso->bufs[i]); 1947 free(iso->stds, M_USBHC); 1948 free(iso->bufs, M_USBHC); 1949 return (USBD_NOMEM); 1950 } 1951 1952 void 1953 uhci_device_isoc_done(reqh) 1954 usbd_request_handle reqh; 1955 { 1956 /*uhci_intr_info_t *ii = v;*/ 1957 } 1958 1959 void 1960 uhci_device_intr_done(reqh) 1961 usbd_request_handle reqh; 1962 { 1963 uhci_intr_info_t *ii = reqh->hcpriv; 1964 uhci_softc_t *sc = ii->sc; 1965 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1966 usb_dma_t *dma; 1967 uhci_soft_qh_t *sqh; 1968 int i, npoll; 1969 1970 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 1971 1972 dma = &upipe->u.intr.datadma; 1973 memcpy(reqh->buffer, KERNADDR(dma), reqh->actlen); 1974 npoll = upipe->u.intr.npoll; 1975 for(i = 0; i < npoll; i++) { 1976 sqh = upipe->u.intr.qhs[i]; 1977 sqh->qh->elink = 0; 1978 sqh->qh->qh_elink = LE(UHCI_PTR_T); 1979 } 1980 uhci_free_std_chain(sc, ii->stdstart, 0); 1981 1982 /* XXX Wasteful. */ 1983 if (reqh->pipe->repeat) { 1984 uhci_soft_td_t *xfer, *xferend; 1985 1986 /* This alloc cannot fail since we freed the chain above. */ 1987 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1988 reqh->flags & USBD_SHORT_XFER_OK, 1989 dma, &xfer, &xferend); 1990 xferend->td->td_status |= LE(UHCI_TD_IOC); 1991 1992 #ifdef USB_DEBUG 1993 if (uhcidebug > 10) { 1994 printf("uhci_device_intr_done: xfer(1)\n"); 1995 uhci_dump_tds(xfer); 1996 uhci_dump_qh(upipe->u.intr.qhs[0]); 1997 } 1998 #endif 1999 2000 ii->stdstart = xfer; 2001 ii->stdend = xferend; 2002 #ifdef DIAGNOSTIC 2003 ii->isdone = 0; 2004 #endif 2005 for (i = 0; i < npoll; i++) { 2006 sqh = upipe->u.intr.qhs[i]; 2007 sqh->qh->elink = xfer; 2008 sqh->qh->qh_elink = LE(xfer->physaddr); 2009 } 2010 } else { 2011 usb_freemem(sc->sc_dmatag, dma); 2012 ii->stdstart = 0; /* mark as inactive */ 2013 } 2014 } 2015 2016 /* Deallocate request data structures */ 2017 void 2018 uhci_device_ctrl_done(reqh) 2019 usbd_request_handle reqh; 2020 { 2021 uhci_intr_info_t *ii = reqh->hcpriv; 2022 uhci_softc_t *sc = ii->sc; 2023 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2024 u_int len = upipe->u.ctl.length; 2025 usb_dma_t *dma; 2026 uhci_td_t *htd = ii->stdstart->td; 2027 2028 #ifdef DIAGNOSTIC 2029 if (!reqh->isreq) 2030 panic("uhci_ctrl_done: not a request\n"); 2031 #endif 2032 2033 LIST_REMOVE(ii, list); /* remove from active list */ 2034 2035 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2036 2037 if (len != 0) { 2038 dma = &upipe->u.ctl.datadma; 2039 if (reqh->request.bmRequestType & UT_READ) 2040 memcpy(reqh->buffer, KERNADDR(dma), len); 2041 uhci_free_std_chain(sc, htd->link.std, ii->stdend); 2042 usb_freemem(sc->sc_dmatag, dma); 2043 } 2044 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2045 } 2046 2047 /* Deallocate request data structures */ 2048 void 2049 uhci_device_bulk_done(reqh) 2050 usbd_request_handle reqh; 2051 { 2052 uhci_intr_info_t *ii = reqh->hcpriv; 2053 uhci_softc_t *sc = ii->sc; 2054 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2055 u_int datalen = upipe->u.bulk.length; 2056 usb_dma_t *dma; 2057 2058 LIST_REMOVE(ii, list); /* remove from active list */ 2059 2060 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2061 2062 /* copy the data from dma memory to userland storage */ 2063 dma = &upipe->u.bulk.datadma; 2064 if (upipe->u.bulk.isread) 2065 memcpy(reqh->buffer, KERNADDR(dma), datalen); 2066 uhci_free_std_chain(sc, ii->stdstart, 0); 2067 usb_freemem(sc->sc_dmatag, dma); 2068 2069 DPRINTFN(4, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2070 } 2071 2072 /* Add interrupt QH, called with vflock. */ 2073 void 2074 uhci_add_intr(sc, n, sqh) 2075 uhci_softc_t *sc; 2076 int n; 2077 uhci_soft_qh_t *sqh; 2078 { 2079 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2080 uhci_qh_t *eqh; 2081 2082 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2083 eqh = vf->eqh->qh; 2084 sqh->qh->hlink = eqh->hlink; 2085 sqh->qh->qh_hlink = eqh->qh_hlink; 2086 eqh->hlink = sqh; 2087 eqh->qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2088 vf->eqh = sqh; 2089 vf->bandwidth++; 2090 } 2091 2092 /* Remove interrupt QH, called with vflock. */ 2093 void 2094 uhci_remove_intr(sc, n, sqh) 2095 uhci_softc_t *sc; 2096 int n; 2097 uhci_soft_qh_t *sqh; 2098 { 2099 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2100 uhci_soft_qh_t *pqh; 2101 2102 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2103 2104 for (pqh = vf->hqh; pqh->qh->hlink != sqh; pqh = pqh->qh->hlink) 2105 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2106 if (LE(pqh->qh->qh_hlink) & UHCI_PTR_T) { 2107 printf("uhci_remove_intr: QH not found\n"); 2108 return; 2109 } 2110 #else 2111 ; 2112 #endif 2113 pqh->qh->hlink = sqh->qh->hlink; 2114 pqh->qh->qh_hlink = sqh->qh->qh_hlink; 2115 if (vf->eqh == sqh) 2116 vf->eqh = pqh; 2117 vf->bandwidth--; 2118 } 2119 2120 usbd_status 2121 uhci_device_setintr(sc, upipe, ival) 2122 uhci_softc_t *sc; 2123 struct uhci_pipe *upipe; 2124 int ival; 2125 { 2126 uhci_soft_qh_t *sqh; 2127 int i, npoll, s; 2128 u_int bestbw, bw, bestoffs, offs; 2129 2130 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2131 if (ival == 0) { 2132 printf("uhci_setintr: 0 interval\n"); 2133 return (USBD_INVAL); 2134 } 2135 2136 if (ival > UHCI_VFRAMELIST_COUNT) 2137 ival = UHCI_VFRAMELIST_COUNT; 2138 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2139 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2140 2141 upipe->u.intr.npoll = npoll; 2142 upipe->u.intr.qhs = 2143 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2144 2145 /* 2146 * Figure out which offset in the schedule that has most 2147 * bandwidth left over. 2148 */ 2149 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2150 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2151 for (bw = i = 0; i < npoll; i++) 2152 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2153 if (bw < bestbw) { 2154 bestbw = bw; 2155 bestoffs = offs; 2156 } 2157 } 2158 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2159 2160 upipe->iinfo->stdstart = 0; 2161 for(i = 0; i < npoll; i++) { 2162 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2163 sqh->qh->elink = 0; 2164 sqh->qh->qh_elink = LE(UHCI_PTR_T); 2165 sqh->pos = MOD(i * ival + bestoffs); 2166 sqh->intr_info = upipe->iinfo; 2167 } 2168 #undef MOD 2169 2170 s = splusb(); 2171 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2172 splx(s); 2173 2174 uhci_lock_frames(sc); 2175 /* Enter QHs into the controller data structures. */ 2176 for(i = 0; i < npoll; i++) 2177 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2178 upipe->u.intr.qhs[i]); 2179 uhci_unlock_frames(sc); 2180 2181 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2182 return (USBD_NORMAL_COMPLETION); 2183 } 2184 2185 /* Open a new pipe. */ 2186 usbd_status 2187 uhci_open(pipe) 2188 usbd_pipe_handle pipe; 2189 { 2190 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2191 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2192 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2193 usbd_status r; 2194 2195 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2196 pipe, pipe->device->address, 2197 ed->bEndpointAddress, sc->sc_addr)); 2198 if (pipe->device->address == sc->sc_addr) { 2199 switch (ed->bEndpointAddress) { 2200 case USB_CONTROL_ENDPOINT: 2201 pipe->methods = &uhci_root_ctrl_methods; 2202 break; 2203 case UE_IN | UHCI_INTR_ENDPT: 2204 pipe->methods = &uhci_root_intr_methods; 2205 break; 2206 default: 2207 return (USBD_INVAL); 2208 } 2209 } else { 2210 upipe->iinfo = uhci_alloc_intr_info(sc); 2211 if (upipe->iinfo == 0) 2212 return (USBD_NOMEM); 2213 switch (ed->bmAttributes & UE_XFERTYPE) { 2214 case UE_CONTROL: 2215 pipe->methods = &uhci_device_ctrl_methods; 2216 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2217 if (upipe->u.ctl.sqh == 0) 2218 goto bad; 2219 upipe->u.ctl.setup = uhci_alloc_std(sc); 2220 if (upipe->u.ctl.setup == 0) { 2221 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2222 goto bad; 2223 } 2224 upipe->u.ctl.stat = uhci_alloc_std(sc); 2225 if (upipe->u.ctl.stat == 0) { 2226 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2227 uhci_free_std(sc, upipe->u.ctl.setup); 2228 goto bad; 2229 } 2230 r = usb_allocmem(sc->sc_dmatag, 2231 sizeof(usb_device_request_t), 2232 0, &upipe->u.ctl.reqdma); 2233 if (r != USBD_NORMAL_COMPLETION) { 2234 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2235 uhci_free_std(sc, upipe->u.ctl.setup); 2236 uhci_free_std(sc, upipe->u.ctl.stat); 2237 goto bad; 2238 } 2239 break; 2240 case UE_INTERRUPT: 2241 pipe->methods = &uhci_device_intr_methods; 2242 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2243 case UE_ISOCHRONOUS: 2244 pipe->methods = &uhci_device_isoc_methods; 2245 upipe->u.iso.nbuf = 0; 2246 return (USBD_NORMAL_COMPLETION); 2247 case UE_BULK: 2248 pipe->methods = &uhci_device_bulk_methods; 2249 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2250 if (upipe->u.bulk.sqh == 0) 2251 goto bad; 2252 break; 2253 } 2254 } 2255 return (USBD_NORMAL_COMPLETION); 2256 2257 bad: 2258 uhci_free_intr_info(upipe->iinfo); 2259 return (USBD_NOMEM); 2260 } 2261 2262 /* 2263 * Data structures and routines to emulate the root hub. 2264 */ 2265 usb_device_descriptor_t uhci_devd = { 2266 USB_DEVICE_DESCRIPTOR_SIZE, 2267 UDESC_DEVICE, /* type */ 2268 {0x00, 0x01}, /* USB version */ 2269 UCLASS_HUB, /* class */ 2270 USUBCLASS_HUB, /* subclass */ 2271 0, /* protocol */ 2272 64, /* max packet */ 2273 {0},{0},{0x00,0x01}, /* device id */ 2274 1,2,0, /* string indicies */ 2275 1 /* # of configurations */ 2276 }; 2277 2278 usb_config_descriptor_t uhci_confd = { 2279 USB_CONFIG_DESCRIPTOR_SIZE, 2280 UDESC_CONFIG, 2281 {USB_CONFIG_DESCRIPTOR_SIZE + 2282 USB_INTERFACE_DESCRIPTOR_SIZE + 2283 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2284 1, 2285 1, 2286 0, 2287 UC_SELF_POWERED, 2288 0 /* max power */ 2289 }; 2290 2291 usb_interface_descriptor_t uhci_ifcd = { 2292 USB_INTERFACE_DESCRIPTOR_SIZE, 2293 UDESC_INTERFACE, 2294 0, 2295 0, 2296 1, 2297 UCLASS_HUB, 2298 USUBCLASS_HUB, 2299 0, 2300 0 2301 }; 2302 2303 usb_endpoint_descriptor_t uhci_endpd = { 2304 USB_ENDPOINT_DESCRIPTOR_SIZE, 2305 UDESC_ENDPOINT, 2306 UE_IN | UHCI_INTR_ENDPT, 2307 UE_INTERRUPT, 2308 {8}, 2309 255 2310 }; 2311 2312 usb_hub_descriptor_t uhci_hubd_piix = { 2313 USB_HUB_DESCRIPTOR_SIZE, 2314 UDESC_HUB, 2315 2, 2316 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2317 50, /* power on to power good */ 2318 0, 2319 { 0x00 }, /* both ports are removable */ 2320 }; 2321 2322 int 2323 uhci_str(p, l, s) 2324 usb_string_descriptor_t *p; 2325 int l; 2326 char *s; 2327 { 2328 int i; 2329 2330 if (l == 0) 2331 return (0); 2332 p->bLength = 2 * strlen(s) + 2; 2333 if (l == 1) 2334 return (1); 2335 p->bDescriptorType = UDESC_STRING; 2336 l -= 2; 2337 for (i = 0; s[i] && l > 1; i++, l -= 2) 2338 USETW2(p->bString[i], 0, s[i]); 2339 return (2*i+2); 2340 } 2341 2342 /* 2343 * Simulate a hardware hub by handling all the necessary requests. 2344 */ 2345 usbd_status 2346 uhci_root_ctrl_transfer(reqh) 2347 usbd_request_handle reqh; 2348 { 2349 int s; 2350 usbd_status r; 2351 2352 s = splusb(); 2353 r = usb_insert_transfer(reqh); 2354 splx(s); 2355 if (r != USBD_NORMAL_COMPLETION) 2356 return (r); 2357 else 2358 return (uhci_root_ctrl_start(reqh)); 2359 } 2360 2361 usbd_status 2362 uhci_root_ctrl_start(reqh) 2363 usbd_request_handle reqh; 2364 { 2365 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2366 usb_device_request_t *req; 2367 void *buf; 2368 int port, x; 2369 int len, value, index, status, change, l, totlen = 0; 2370 usb_port_status_t ps; 2371 usbd_status r; 2372 2373 if (!reqh->isreq) 2374 panic("uhci_root_ctrl_transfer: not a request\n"); 2375 req = &reqh->request; 2376 buf = reqh->buffer; 2377 2378 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2379 req->bmRequestType, req->bRequest)); 2380 2381 len = UGETW(req->wLength); 2382 value = UGETW(req->wValue); 2383 index = UGETW(req->wIndex); 2384 #define C(x,y) ((x) | ((y) << 8)) 2385 switch(C(req->bRequest, req->bmRequestType)) { 2386 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2387 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2388 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2389 /* 2390 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2391 * for the integrated root hub. 2392 */ 2393 break; 2394 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2395 if (len > 0) { 2396 *(u_int8_t *)buf = sc->sc_conf; 2397 totlen = 1; 2398 } 2399 break; 2400 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2401 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2402 switch(value >> 8) { 2403 case UDESC_DEVICE: 2404 if ((value & 0xff) != 0) { 2405 r = USBD_IOERROR; 2406 goto ret; 2407 } 2408 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2409 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2410 memcpy(buf, &uhci_devd, l); 2411 break; 2412 case UDESC_CONFIG: 2413 if ((value & 0xff) != 0) { 2414 r = USBD_IOERROR; 2415 goto ret; 2416 } 2417 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2418 memcpy(buf, &uhci_confd, l); 2419 buf = (char *)buf + l; 2420 len -= l; 2421 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2422 totlen += l; 2423 memcpy(buf, &uhci_ifcd, l); 2424 buf = (char *)buf + l; 2425 len -= l; 2426 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2427 totlen += l; 2428 memcpy(buf, &uhci_endpd, l); 2429 break; 2430 case UDESC_STRING: 2431 if (len == 0) 2432 break; 2433 *(u_int8_t *)buf = 0; 2434 totlen = 1; 2435 switch (value & 0xff) { 2436 case 1: /* Vendor */ 2437 totlen = uhci_str(buf, len, sc->sc_vendor); 2438 break; 2439 case 2: /* Product */ 2440 totlen = uhci_str(buf, len, "UHCI root hub"); 2441 break; 2442 } 2443 break; 2444 default: 2445 r = USBD_IOERROR; 2446 goto ret; 2447 } 2448 break; 2449 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2450 if (len > 0) { 2451 *(u_int8_t *)buf = 0; 2452 totlen = 1; 2453 } 2454 break; 2455 case C(UR_GET_STATUS, UT_READ_DEVICE): 2456 if (len > 1) { 2457 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2458 totlen = 2; 2459 } 2460 break; 2461 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2462 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2463 if (len > 1) { 2464 USETW(((usb_status_t *)buf)->wStatus, 0); 2465 totlen = 2; 2466 } 2467 break; 2468 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2469 if (value >= USB_MAX_DEVICES) { 2470 r = USBD_IOERROR; 2471 goto ret; 2472 } 2473 sc->sc_addr = value; 2474 break; 2475 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2476 if (value != 0 && value != 1) { 2477 r = USBD_IOERROR; 2478 goto ret; 2479 } 2480 sc->sc_conf = value; 2481 break; 2482 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2483 break; 2484 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2485 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2486 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2487 r = USBD_IOERROR; 2488 goto ret; 2489 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2490 break; 2491 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2492 break; 2493 /* Hub requests */ 2494 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2495 break; 2496 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2497 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2498 "port=%d feature=%d\n", 2499 index, value)); 2500 if (index == 1) 2501 port = UHCI_PORTSC1; 2502 else if (index == 2) 2503 port = UHCI_PORTSC2; 2504 else { 2505 r = USBD_IOERROR; 2506 goto ret; 2507 } 2508 switch(value) { 2509 case UHF_PORT_ENABLE: 2510 x = UREAD2(sc, port); 2511 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2512 break; 2513 case UHF_PORT_SUSPEND: 2514 x = UREAD2(sc, port); 2515 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2516 break; 2517 case UHF_PORT_RESET: 2518 x = UREAD2(sc, port); 2519 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2520 break; 2521 case UHF_C_PORT_CONNECTION: 2522 x = UREAD2(sc, port); 2523 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2524 break; 2525 case UHF_C_PORT_ENABLE: 2526 x = UREAD2(sc, port); 2527 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2528 break; 2529 case UHF_C_PORT_OVER_CURRENT: 2530 x = UREAD2(sc, port); 2531 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2532 break; 2533 case UHF_C_PORT_RESET: 2534 sc->sc_isreset = 0; 2535 r = USBD_NORMAL_COMPLETION; 2536 goto ret; 2537 case UHF_PORT_CONNECTION: 2538 case UHF_PORT_OVER_CURRENT: 2539 case UHF_PORT_POWER: 2540 case UHF_PORT_LOW_SPEED: 2541 case UHF_C_PORT_SUSPEND: 2542 default: 2543 r = USBD_IOERROR; 2544 goto ret; 2545 } 2546 break; 2547 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2548 if (index == 1) 2549 port = UHCI_PORTSC1; 2550 else if (index == 2) 2551 port = UHCI_PORTSC2; 2552 else { 2553 r = USBD_IOERROR; 2554 goto ret; 2555 } 2556 if (len > 0) { 2557 *(u_int8_t *)buf = 2558 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2559 UHCI_PORTSC_LS_SHIFT; 2560 totlen = 1; 2561 } 2562 break; 2563 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2564 if (value != 0) { 2565 r = USBD_IOERROR; 2566 goto ret; 2567 } 2568 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2569 totlen = l; 2570 memcpy(buf, &uhci_hubd_piix, l); 2571 break; 2572 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2573 if (len != 4) { 2574 r = USBD_IOERROR; 2575 goto ret; 2576 } 2577 memset(buf, 0, len); 2578 totlen = len; 2579 break; 2580 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2581 if (index == 1) 2582 port = UHCI_PORTSC1; 2583 else if (index == 2) 2584 port = UHCI_PORTSC2; 2585 else { 2586 r = USBD_IOERROR; 2587 goto ret; 2588 } 2589 if (len != 4) { 2590 r = USBD_IOERROR; 2591 goto ret; 2592 } 2593 x = UREAD2(sc, port); 2594 status = change = 0; 2595 if (x & UHCI_PORTSC_CCS ) 2596 status |= UPS_CURRENT_CONNECT_STATUS; 2597 if (x & UHCI_PORTSC_CSC ) 2598 change |= UPS_C_CONNECT_STATUS; 2599 if (x & UHCI_PORTSC_PE ) 2600 status |= UPS_PORT_ENABLED; 2601 if (x & UHCI_PORTSC_POEDC) 2602 change |= UPS_C_PORT_ENABLED; 2603 if (x & UHCI_PORTSC_OCI ) 2604 status |= UPS_OVERCURRENT_INDICATOR; 2605 if (x & UHCI_PORTSC_OCIC ) 2606 change |= UPS_C_OVERCURRENT_INDICATOR; 2607 if (x & UHCI_PORTSC_SUSP ) 2608 status |= UPS_SUSPEND; 2609 if (x & UHCI_PORTSC_LSDA ) 2610 status |= UPS_LOW_SPEED; 2611 status |= UPS_PORT_POWER; 2612 if (sc->sc_isreset) 2613 change |= UPS_C_PORT_RESET; 2614 USETW(ps.wPortStatus, status); 2615 USETW(ps.wPortChange, change); 2616 l = min(len, sizeof ps); 2617 memcpy(buf, &ps, l); 2618 totlen = l; 2619 break; 2620 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2621 r = USBD_IOERROR; 2622 goto ret; 2623 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2624 break; 2625 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2626 if (index == 1) 2627 port = UHCI_PORTSC1; 2628 else if (index == 2) 2629 port = UHCI_PORTSC2; 2630 else { 2631 r = USBD_IOERROR; 2632 goto ret; 2633 } 2634 switch(value) { 2635 case UHF_PORT_ENABLE: 2636 x = UREAD2(sc, port); 2637 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2638 break; 2639 case UHF_PORT_SUSPEND: 2640 x = UREAD2(sc, port); 2641 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2642 break; 2643 case UHF_PORT_RESET: 2644 x = UREAD2(sc, port); 2645 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2646 usb_delay_ms(&sc->sc_bus, 10); 2647 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2648 delay(100); 2649 x = UREAD2(sc, port); 2650 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2651 delay(100); 2652 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2653 index, UREAD2(sc, port))); 2654 sc->sc_isreset = 1; 2655 break; 2656 case UHF_C_PORT_CONNECTION: 2657 case UHF_C_PORT_ENABLE: 2658 case UHF_C_PORT_OVER_CURRENT: 2659 case UHF_PORT_CONNECTION: 2660 case UHF_PORT_OVER_CURRENT: 2661 case UHF_PORT_POWER: 2662 case UHF_PORT_LOW_SPEED: 2663 case UHF_C_PORT_SUSPEND: 2664 case UHF_C_PORT_RESET: 2665 default: 2666 r = USBD_IOERROR; 2667 goto ret; 2668 } 2669 break; 2670 default: 2671 r = USBD_IOERROR; 2672 goto ret; 2673 } 2674 reqh->actlen = totlen; 2675 r = USBD_NORMAL_COMPLETION; 2676 ret: 2677 reqh->status = r; 2678 reqh->hcpriv = 0; 2679 usb_transfer_complete(reqh); 2680 return (USBD_IN_PROGRESS); 2681 } 2682 2683 /* Abort a root control request. */ 2684 void 2685 uhci_root_ctrl_abort(reqh) 2686 usbd_request_handle reqh; 2687 { 2688 /* Nothing to do, all transfers are syncronous. */ 2689 } 2690 2691 /* Close the root pipe. */ 2692 void 2693 uhci_root_ctrl_close(pipe) 2694 usbd_pipe_handle pipe; 2695 { 2696 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2697 2698 sc->sc_has_timo = 0; 2699 DPRINTF(("uhci_root_ctrl_close\n")); 2700 } 2701 2702 /* Abort a root interrupt request. */ 2703 void 2704 uhci_root_intr_abort(reqh) 2705 usbd_request_handle reqh; 2706 { 2707 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2708 2709 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2710 sc->sc_has_timo = 0; 2711 } 2712 2713 usbd_status 2714 uhci_root_intr_transfer(reqh) 2715 usbd_request_handle reqh; 2716 { 2717 int s; 2718 usbd_status r; 2719 2720 s = splusb(); 2721 r = usb_insert_transfer(reqh); 2722 splx(s); 2723 if (r != USBD_NORMAL_COMPLETION) 2724 return (r); 2725 else 2726 return (uhci_root_intr_start(reqh)); 2727 } 2728 2729 /* Start a transfer on the root interrupt pipe */ 2730 usbd_status 2731 uhci_root_intr_start(reqh) 2732 usbd_request_handle reqh; 2733 { 2734 usbd_pipe_handle pipe = reqh->pipe; 2735 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2736 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2737 usb_dma_t *dmap; 2738 usbd_status r; 2739 int len; 2740 2741 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p buf=%p len=%d " 2742 "flags=%d\n", 2743 reqh, reqh->buffer, reqh->length, reqh->flags)); 2744 2745 len = reqh->length; 2746 dmap = &upipe->u.intr.datadma; 2747 if (len == 0) 2748 return (USBD_INVAL); /* XXX should it be? */ 2749 2750 r = usb_allocmem(sc->sc_dmatag, len, 0, dmap); 2751 if (r != USBD_NORMAL_COMPLETION) 2752 return (r); 2753 2754 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2755 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2756 sc->sc_has_timo = reqh; 2757 return (USBD_IN_PROGRESS); 2758 } 2759 2760 /* Close the root interrupt pipe. */ 2761 void 2762 uhci_root_intr_close(pipe) 2763 usbd_pipe_handle pipe; 2764 { 2765 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2766 2767 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2768 sc->sc_has_timo = 0; 2769 DPRINTF(("uhci_root_intr_close\n")); 2770 } 2771 2772
Indexes created Tue Sep 23 07:09:52 GMT 2025