uhci.c revision 1.51
1 /* $NetBSD: uhci.c,v 1.51 1999/09/13 19:49:41 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 uhci_soft_td_t *setup, *stat; 114 u_int length; 115 } ctl; 116 /* Interrupt pipe */ 117 struct { 118 int npoll; 119 uhci_soft_qh_t **qhs; 120 } intr; 121 /* Bulk pipe */ 122 struct { 123 uhci_soft_qh_t *sqh; 124 u_int length; 125 int isread; 126 } bulk; 127 /* Iso pipe */ 128 struct iso { 129 uhci_soft_td_t **stds; 130 int next, inuse; 131 } iso; 132 } u; 133 }; 134 135 /* 136 * The uhci_intr_info free list can be global since they contain 137 * no dma specific data. The other free lists do. 138 */ 139 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 140 141 void uhci_busreset __P((uhci_softc_t *)); 142 void uhci_power __P((int, void *)); 143 usbd_status uhci_run __P((uhci_softc_t *, int run)); 144 uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 145 void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 146 uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 147 void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 148 uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 149 void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 150 #if 0 151 void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 152 uhci_intr_info_t *)); 153 void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 154 #endif 155 156 void uhci_free_std_chain __P((uhci_softc_t *, 157 uhci_soft_td_t *, uhci_soft_td_t *)); 158 usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, uhci_softc_t *, 159 int, int, int, usb_dma_t *, 160 uhci_soft_td_t **, 161 uhci_soft_td_t **)); 162 void uhci_timo __P((void *)); 163 void uhci_waitintr __P((uhci_softc_t *, usbd_request_handle)); 164 void uhci_check_intr __P((uhci_softc_t *, uhci_intr_info_t *)); 165 void uhci_idone __P((uhci_intr_info_t *)); 166 void uhci_abort_req __P((usbd_request_handle, usbd_status status)); 167 void uhci_abort_req_end __P((void *v)); 168 void uhci_timeout __P((void *)); 169 void uhci_wakeup_ctrl __P((void *, int, int, void *, int)); 170 void uhci_lock_frames __P((uhci_softc_t *)); 171 void uhci_unlock_frames __P((uhci_softc_t *)); 172 void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 173 void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 174 void uhci_remove_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 175 void uhci_remove_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 176 int uhci_str __P((usb_string_descriptor_t *, int, char *)); 177 usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 178 void uhci_device_isoc_enter __P((usbd_request_handle)); 179 180 void uhci_wakeup_cb __P((usbd_request_handle reqh)); 181 182 usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, u_int32_t)); 183 void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 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)); 208 209 usbd_status uhci_root_ctrl_transfer __P((usbd_request_handle)); 210 usbd_status uhci_root_ctrl_start __P((usbd_request_handle)); 211 void uhci_root_ctrl_abort __P((usbd_request_handle)); 212 void uhci_root_ctrl_close __P((usbd_pipe_handle)); 213 214 usbd_status uhci_root_intr_transfer __P((usbd_request_handle)); 215 usbd_status uhci_root_intr_start __P((usbd_request_handle)); 216 void uhci_root_intr_abort __P((usbd_request_handle)); 217 void uhci_root_intr_close __P((usbd_pipe_handle)); 218 void uhci_root_intr_done __P((usbd_request_handle)); 219 220 usbd_status uhci_open __P((usbd_pipe_handle)); 221 void uhci_poll __P((struct usbd_bus *)); 222 223 usbd_status uhci_device_request __P((usbd_request_handle reqh)); 224 225 void uhci_add_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 226 void uhci_remove_intr __P((uhci_softc_t *, int, uhci_soft_qh_t *)); 227 usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 228 struct uhci_pipe *pipe, int ival)); 229 230 void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 231 void uhci_noop __P((usbd_pipe_handle pipe)); 232 233 #ifdef USB_DEBUG 234 static void uhci_dumpregs __P((uhci_softc_t *)); 235 void uhci_dump_tds __P((uhci_soft_td_t *)); 236 void uhci_dump_qh __P((uhci_soft_qh_t *)); 237 void uhci_dump __P((void)); 238 void uhci_dump_td __P((uhci_soft_td_t *)); 239 #endif 240 241 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 242 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 243 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 244 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 245 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 246 247 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 248 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 249 250 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 251 252 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 253 254 #define UHCI_INTR_ENDPT 1 255 256 struct usbd_bus_methods uhci_bus_methods = { 257 uhci_open, 258 uhci_poll, 259 uhci_allocm, 260 uhci_freem, 261 }; 262 263 struct usbd_pipe_methods uhci_root_ctrl_methods = { 264 uhci_root_ctrl_transfer, 265 uhci_root_ctrl_start, 266 uhci_root_ctrl_abort, 267 uhci_root_ctrl_close, 268 uhci_noop, 269 0, 270 }; 271 272 struct usbd_pipe_methods uhci_root_intr_methods = { 273 uhci_root_intr_transfer, 274 uhci_root_intr_start, 275 uhci_root_intr_abort, 276 uhci_root_intr_close, 277 uhci_noop, 278 uhci_root_intr_done, 279 }; 280 281 struct usbd_pipe_methods uhci_device_ctrl_methods = { 282 uhci_device_ctrl_transfer, 283 uhci_device_ctrl_start, 284 uhci_device_ctrl_abort, 285 uhci_device_ctrl_close, 286 uhci_noop, 287 uhci_device_ctrl_done, 288 }; 289 290 struct usbd_pipe_methods uhci_device_intr_methods = { 291 uhci_device_intr_transfer, 292 uhci_device_intr_start, 293 uhci_device_intr_abort, 294 uhci_device_intr_close, 295 uhci_device_clear_toggle, 296 uhci_device_intr_done, 297 }; 298 299 struct usbd_pipe_methods uhci_device_bulk_methods = { 300 uhci_device_bulk_transfer, 301 uhci_device_bulk_start, 302 uhci_device_bulk_abort, 303 uhci_device_bulk_close, 304 uhci_device_clear_toggle, 305 uhci_device_bulk_done, 306 }; 307 308 struct usbd_pipe_methods uhci_device_isoc_methods = { 309 uhci_device_isoc_transfer, 310 uhci_device_isoc_start, 311 uhci_device_isoc_abort, 312 uhci_device_isoc_close, 313 uhci_noop, 314 uhci_device_isoc_done, 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_bus, 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->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->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->hlink = csqh; 390 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 391 sqh->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.methods = &uhci_bus_methods; 407 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 408 409 sc->sc_suspend = PWR_RESUME; 410 powerhook_establish(uhci_power, sc); 411 412 DPRINTFN(1,("uhci_init: enabling\n")); 413 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 414 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 415 416 return (uhci_run(sc, 1)); /* and here we go... */ 417 } 418 419 usbd_status 420 uhci_allocm(bus, dma, size) 421 struct usbd_bus *bus; 422 usb_dma_t *dma; 423 u_int32_t size; 424 { 425 struct uhci_softc *sc = (struct uhci_softc *)bus; 426 427 return (usb_allocmem(&sc->sc_bus, size, 0, dma)); 428 } 429 430 void 431 uhci_freem(bus, dma) 432 struct usbd_bus *bus; 433 usb_dma_t *dma; 434 { 435 struct uhci_softc *sc = (struct uhci_softc *)bus; 436 437 usb_freemem(&sc->sc_bus, dma); 438 } 439 440 #if !defined(__OpenBSD__) 441 /* 442 * Handle suspend/resume. 443 * 444 * We need to switch to polling mode here, because this routine is 445 * called from an intterupt context. This is all right since we 446 * are almost suspended anyway. 447 */ 448 void 449 uhci_power(why, v) 450 int why; 451 void *v; 452 { 453 uhci_softc_t *sc = v; 454 int cmd; 455 int s; 456 457 s = splusb(); 458 cmd = UREAD2(sc, UHCI_CMD); 459 460 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 461 sc, why, sc->sc_suspend, cmd)); 462 463 if (why != PWR_RESUME) { 464 #if defined(USB_DEBUG) 465 if (uhcidebug > 2) 466 uhci_dumpregs(sc); 467 #endif 468 if (sc->sc_has_timo) 469 usb_untimeout(uhci_timo, sc->sc_has_timo, 470 sc->sc_has_timo->timo_handle); 471 sc->sc_bus.use_polling = 1; 472 uhci_run(sc, 0); /* stop the controller */ 473 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 474 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 475 sc->sc_suspend = why; 476 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 477 } else { 478 /* 479 * XXX We should really do much more here in case the 480 * controller registers have been lost and BIOS has 481 * not restored them. 482 */ 483 sc->sc_suspend = why; 484 if (cmd & UHCI_CMD_RS) 485 uhci_run(sc, 0); /* in case BIOS has started it */ 486 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 487 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 488 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 489 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 490 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 491 uhci_run(sc, 1); /* and start traffic again */ 492 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 493 sc->sc_bus.use_polling = 0; 494 if (sc->sc_has_timo) 495 usb_timeout(uhci_timo, sc->sc_has_timo, 496 sc->sc_ival, sc->sc_has_timo->timo_handle); 497 #if defined(USB_DEBUG) 498 if (uhcidebug > 2) 499 uhci_dumpregs(sc); 500 #endif 501 } 502 splx(s); 503 } 504 #endif /* !defined(__OpenBSD__) */ 505 506 #ifdef USB_DEBUG 507 static void 508 uhci_dumpregs(sc) 509 uhci_softc_t *sc; 510 { 511 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 512 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 513 USBDEVNAME(sc->sc_bus.bdev), 514 UREAD2(sc, UHCI_CMD), 515 UREAD2(sc, UHCI_STS), 516 UREAD2(sc, UHCI_INTR), 517 UREAD2(sc, UHCI_FRNUM), 518 UREAD4(sc, UHCI_FLBASEADDR), 519 UREAD1(sc, UHCI_SOF), 520 UREAD2(sc, UHCI_PORTSC1), 521 UREAD2(sc, UHCI_PORTSC2))); 522 } 523 524 void 525 uhci_dump_td(p) 526 uhci_soft_td_t *p; 527 { 528 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 529 "token=0x%08lx buffer=0x%08lx\n", 530 p, (long)p->physaddr, 531 (long)LE(p->td.td_link), 532 (long)LE(p->td.td_status), 533 (long)LE(p->td.td_token), 534 (long)LE(p->td.td_buffer))); 535 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 536 "D=%d,maxlen=%d\n", 537 (int)LE(p->td.td_link), 538 "\20\1T\2Q\3VF", 539 (int)LE(p->td.td_status), 540 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 541 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 542 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 543 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 544 UHCI_TD_GET_PID(LE(p->td.td_token)), 545 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 546 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 547 UHCI_TD_GET_DT(LE(p->td.td_token)), 548 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 549 } 550 551 void 552 uhci_dump_qh(p) 553 uhci_soft_qh_t *p; 554 { 555 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", p, 556 (int)p->physaddr, LE(p->qh.qh_hlink), LE(p->qh.qh_elink))); 557 } 558 559 560 #if 0 561 void 562 uhci_dump() 563 { 564 uhci_softc_t *sc = uhci; 565 566 uhci_dumpregs(sc); 567 printf("intrs=%d\n", sc->sc_bus.no_intrs); 568 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 569 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 570 } 571 #endif 572 573 void 574 uhci_dump_tds(std) 575 uhci_soft_td_t *std; 576 { 577 uhci_soft_td_t *p; 578 579 for(p = std; p; p = p->link.std) 580 uhci_dump_td(p); 581 } 582 #endif 583 584 /* 585 * This routine is executed periodically and simulates interrupts 586 * from the root controller interrupt pipe for port status change. 587 */ 588 void 589 uhci_timo(addr) 590 void *addr; 591 { 592 usbd_request_handle reqh = addr; 593 usbd_pipe_handle pipe = reqh->pipe; 594 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 595 int s; 596 u_char *p; 597 598 DPRINTFN(15, ("uhci_timo\n")); 599 600 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 601 602 p = KERNADDR(&reqh->dmabuf); 603 p[0] = 0; 604 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 605 p[0] |= 1<<1; 606 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 607 p[0] |= 1<<2; 608 if (p[0] == 0) 609 /* No change, try again in a while */ 610 return; 611 612 reqh->actlen = 1; 613 reqh->status = USBD_NORMAL_COMPLETION; 614 s = splusb(); 615 reqh->hcpriv = 0; 616 reqh->device->bus->intr_context++; 617 usb_transfer_complete(reqh); 618 reqh->device->bus->intr_context--; 619 splx(s); 620 } 621 622 void 623 uhci_root_intr_done(reqh) 624 usbd_request_handle reqh; 625 { 626 } 627 628 629 void 630 uhci_lock_frames(sc) 631 uhci_softc_t *sc; 632 { 633 int s = splusb(); 634 while (sc->sc_vflock) { 635 sc->sc_vflock |= UHCI_WANT_LOCK; 636 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 637 } 638 sc->sc_vflock = UHCI_HAS_LOCK; 639 splx(s); 640 } 641 642 void 643 uhci_unlock_frames(sc) 644 uhci_softc_t *sc; 645 { 646 int s = splusb(); 647 sc->sc_vflock &= ~UHCI_HAS_LOCK; 648 if (sc->sc_vflock & UHCI_WANT_LOCK) 649 wakeup(&sc->sc_vflock); 650 splx(s); 651 } 652 653 /* 654 * Allocate an interrupt information struct. A free list is kept 655 * for fast allocation. 656 */ 657 uhci_intr_info_t * 658 uhci_alloc_intr_info(sc) 659 uhci_softc_t *sc; 660 { 661 uhci_intr_info_t *ii; 662 663 ii = LIST_FIRST(&uhci_ii_free); 664 if (ii) 665 LIST_REMOVE(ii, list); 666 else { 667 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 668 } 669 ii->sc = sc; 670 return ii; 671 } 672 673 void 674 uhci_free_intr_info(ii) 675 uhci_intr_info_t *ii; 676 { 677 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 678 } 679 680 /* Add control QH, called at splusb(). */ 681 void 682 uhci_add_ctrl(sc, sqh) 683 uhci_softc_t *sc; 684 uhci_soft_qh_t *sqh; 685 { 686 uhci_soft_qh_t *eqh; 687 688 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 689 eqh = sc->sc_ctl_end; 690 sqh->hlink = eqh->hlink; 691 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 692 eqh->hlink = sqh; 693 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 694 sc->sc_ctl_end = sqh; 695 } 696 697 /* Remove control QH, called at splusb(). */ 698 void 699 uhci_remove_ctrl(sc, sqh) 700 uhci_softc_t *sc; 701 uhci_soft_qh_t *sqh; 702 { 703 uhci_soft_qh_t *pqh; 704 705 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 706 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 707 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 708 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 709 printf("uhci_remove_ctrl: QH not found\n"); 710 return; 711 } 712 #else 713 ; 714 #endif 715 pqh->hlink = sqh->hlink; 716 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 717 if (sc->sc_ctl_end == sqh) 718 sc->sc_ctl_end = pqh; 719 } 720 721 /* Add bulk QH, called at splusb(). */ 722 void 723 uhci_add_bulk(sc, sqh) 724 uhci_softc_t *sc; 725 uhci_soft_qh_t *sqh; 726 { 727 uhci_soft_qh_t *eqh; 728 729 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 730 eqh = sc->sc_bulk_end; 731 sqh->hlink = eqh->hlink; 732 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 733 eqh->hlink = sqh; 734 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 735 sc->sc_bulk_end = sqh; 736 } 737 738 /* Remove bulk QH, called at splusb(). */ 739 void 740 uhci_remove_bulk(sc, sqh) 741 uhci_softc_t *sc; 742 uhci_soft_qh_t *sqh; 743 { 744 uhci_soft_qh_t *pqh; 745 746 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 747 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 748 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 749 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 750 printf("uhci_remove_bulk: QH not found\n"); 751 return; 752 } 753 #else 754 ; 755 #endif 756 pqh->hlink = sqh->hlink; 757 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 758 if (sc->sc_bulk_end == sqh) 759 sc->sc_bulk_end = pqh; 760 } 761 762 int 763 uhci_intr(arg) 764 void *arg; 765 { 766 uhci_softc_t *sc = arg; 767 int status; 768 int ack; 769 uhci_intr_info_t *ii; 770 771 #if defined(USB_DEBUG) 772 if (uhcidebug > 15) { 773 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 774 uhci_dumpregs(sc); 775 } 776 #endif 777 778 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 779 if (sc->sc_suspend != PWR_RESUME) 780 printf("uhci_intr: suspended sts=0x%x\n", status); 781 #endif 782 783 status = UREAD2(sc, UHCI_STS); 784 ack = 0; 785 if (status & UHCI_STS_USBINT) 786 ack |= UHCI_STS_USBINT; 787 if (status & UHCI_STS_USBEI) 788 ack |= UHCI_STS_USBEI; 789 if (status & UHCI_STS_RD) { 790 ack |= UHCI_STS_RD; 791 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 792 } 793 if (status & UHCI_STS_HSE) { 794 ack |= UHCI_STS_HSE; 795 printf("%s: host controller process error\n", 796 USBDEVNAME(sc->sc_bus.bdev)); 797 } 798 if (status & UHCI_STS_HCPE) { 799 ack |= UHCI_STS_HCPE; 800 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 801 } 802 if (status & UHCI_STS_HCH) { 803 /* no acknowledge needed */ 804 printf("%s: host controller halted\n", 805 USBDEVNAME(sc->sc_bus.bdev)); 806 } 807 808 if (ack) /* acknowledge the ints */ 809 UWRITE2(sc, UHCI_STS, ack); 810 else /* nothing to acknowledge */ 811 return (0); 812 813 sc->sc_bus.intr_context++; 814 sc->sc_bus.no_intrs++; 815 816 /* 817 * Interrupts on UHCI really suck. When the host controller 818 * interrupts because a transfer is completed there is no 819 * way of knowing which transfer it was. You can scan down 820 * the TDs and QHs of the previous frame to limit the search, 821 * but that assumes that the interrupt was not delayed by more 822 * than 1 ms, which may not always be true (e.g. after debug 823 * output on a slow console). 824 * We scan all interrupt descriptors to see if any have 825 * completed. 826 */ 827 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 828 uhci_check_intr(sc, ii); 829 830 DPRINTFN(10, ("uhci_intr: exit\n")); 831 832 sc->sc_bus.intr_context--; 833 834 return (1); 835 } 836 837 /* Check for an interrupt. */ 838 void 839 uhci_check_intr(sc, ii) 840 uhci_softc_t *sc; 841 uhci_intr_info_t *ii; 842 { 843 uhci_soft_td_t *std, *lstd; 844 u_int32_t status; 845 846 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 847 #ifdef DIAGNOSTIC 848 if (!ii) { 849 printf("uhci_check_intr: no ii? %p\n", ii); 850 return; 851 } 852 #endif 853 if (!ii->stdstart) 854 return; 855 lstd = ii->stdend; 856 #ifdef DIAGNOSTIC 857 if (!lstd) { 858 printf("uhci_check_intr: std==0\n"); 859 return; 860 } 861 #endif 862 /* 863 * If the last TD is still active we need to check whether there 864 * is a an error somewhere in the middle, or whether there was a 865 * short packet (SPD and not ACTIVE). 866 */ 867 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 868 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 869 for (std = ii->stdstart; std != lstd; std = std->link.std) { 870 status = LE(std->td.td_status); 871 if ((status & UHCI_TD_STALLED) || 872 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 873 UHCI_TD_SPD) 874 goto done; 875 } 876 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 877 ii, ii->stdstart)); 878 return; 879 } 880 done: 881 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 882 uhci_idone(ii); 883 } 884 885 void 886 uhci_idone(ii) 887 uhci_intr_info_t *ii; 888 { 889 usbd_request_handle reqh = ii->reqh; 890 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 891 uhci_soft_td_t *std; 892 u_int32_t status; 893 int actlen; 894 895 #ifdef DIAGNOSTIC 896 { 897 int s = splhigh(); 898 if (ii->isdone) { 899 splx(s); 900 printf("uhci_idone: ii=%p is done!\n", ii); 901 return; 902 } 903 ii->isdone = 1; 904 splx(s); 905 } 906 #endif 907 908 if (reqh->status == USBD_CANCELLED || 909 reqh->status == USBD_TIMEOUT) { 910 DPRINTF(("uhci_idone: aborted reqh=%p\n", reqh)); 911 return; 912 } 913 914 if (reqh->nframes) { 915 /* Isoc transfer, do things differently. */ 916 uhci_soft_td_t **stds = upipe->u.iso.stds; 917 int i, n, nframes; 918 919 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 920 921 nframes = reqh->nframes; 922 actlen = 0; 923 n = reqh->hcprivint; 924 for (i = 0; i < nframes; i++) { 925 std = stds[n]; 926 #ifdef USB_DEBUG 927 if (uhcidebug > 5) { 928 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 929 uhci_dump_td(std); 930 } 931 #endif 932 if (++n >= UHCI_VFRAMELIST_COUNT) 933 n = 0; 934 status = LE(std->td.td_status); 935 actlen += UHCI_TD_GET_ACTLEN(status); 936 } 937 upipe->u.iso.inuse -= nframes; 938 reqh->actlen = actlen; 939 reqh->status = USBD_NORMAL_COMPLETION; 940 reqh->hcpriv = ii; 941 usb_transfer_complete(reqh); 942 return; 943 } 944 945 #ifdef USB_DEBUG 946 DPRINTFN(10, ("uhci_idone: ii=%p ready\n", ii)); 947 if (uhcidebug > 10) 948 uhci_dump_tds(ii->stdstart); 949 #endif 950 951 /* The transfer is done, compute actual length and status. */ 952 /* XXX Is this correct for control xfers? */ 953 actlen = 0; 954 for (std = ii->stdstart; std; std = std->link.std) { 955 status = LE(std->td.td_status); 956 if (status & UHCI_TD_ACTIVE) 957 break; 958 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != 959 UHCI_TD_PID_SETUP) 960 actlen += UHCI_TD_GET_ACTLEN(status); 961 } 962 /* If there are left over TDs we need to update the toggle. */ 963 if (std) 964 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 965 966 status &= UHCI_TD_ERROR; 967 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 968 actlen, status)); 969 reqh->actlen = actlen; 970 if (status != 0) { 971 DPRINTFN(-1+((status&UHCI_TD_STALLED)!=0), 972 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 973 "status 0x%b\n", 974 reqh->pipe->device->address, 975 reqh->pipe->endpoint->edesc->bEndpointAddress, 976 (int)status, 977 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 978 "STALLED\30ACTIVE")); 979 if (status == UHCI_TD_STALLED) 980 reqh->status = USBD_STALLED; 981 else 982 reqh->status = USBD_IOERROR; /* more info XXX */ 983 } else { 984 reqh->status = USBD_NORMAL_COMPLETION; 985 } 986 reqh->hcpriv = ii; 987 usb_transfer_complete(reqh); 988 } 989 990 /* 991 * Called when a request does not complete. 992 */ 993 void 994 uhci_timeout(addr) 995 void *addr; 996 { 997 uhci_intr_info_t *ii = addr; 998 999 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1000 1001 ii->reqh->device->bus->intr_context++; 1002 uhci_abort_req(ii->reqh, USBD_TIMEOUT); 1003 ii->reqh->device->bus->intr_context--; 1004 } 1005 1006 /* 1007 * Wait here until controller claims to have an interrupt. 1008 * Then call uhci_intr and return. Use timeout to avoid waiting 1009 * too long. 1010 * Only used during boot when interrupts are not enabled yet. 1011 */ 1012 void 1013 uhci_waitintr(sc, reqh) 1014 uhci_softc_t *sc; 1015 usbd_request_handle reqh; 1016 { 1017 int timo = reqh->timeout; 1018 uhci_intr_info_t *ii; 1019 1020 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1021 1022 reqh->status = USBD_IN_PROGRESS; 1023 for (; timo >= 0; timo--) { 1024 usb_delay_ms(&sc->sc_bus, 1); 1025 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1026 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1027 uhci_intr(sc); 1028 if (reqh->status != USBD_IN_PROGRESS) 1029 return; 1030 } 1031 } 1032 1033 /* Timeout */ 1034 DPRINTF(("uhci_waitintr: timeout\n")); 1035 for (ii = LIST_FIRST(&sc->sc_intrhead); 1036 ii && ii->reqh != reqh; 1037 ii = LIST_NEXT(ii, list)) 1038 ; 1039 #ifdef DIAGNOSTIC 1040 if (!ii) 1041 panic("uhci_waitintr: lost intr_info\n"); 1042 #endif 1043 uhci_idone(ii); 1044 } 1045 1046 void 1047 uhci_poll(bus) 1048 struct usbd_bus *bus; 1049 { 1050 uhci_softc_t *sc = (uhci_softc_t *)bus; 1051 1052 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1053 uhci_intr(sc); 1054 } 1055 1056 #if 0 1057 void 1058 uhci_reset(p) 1059 void *p; 1060 { 1061 uhci_softc_t *sc = p; 1062 int n; 1063 1064 UHCICMD(sc, UHCI_CMD_HCRESET); 1065 /* The reset bit goes low when the controller is done. */ 1066 for (n = 0; n < UHCI_RESET_TIMEOUT && 1067 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1068 delay(100); 1069 if (n >= UHCI_RESET_TIMEOUT) 1070 printf("%s: controller did not reset\n", 1071 USBDEVNAME(sc->sc_bus.bdev)); 1072 } 1073 #endif 1074 1075 usbd_status 1076 uhci_run(sc, run) 1077 uhci_softc_t *sc; 1078 int run; 1079 { 1080 int s, n, running; 1081 1082 run = run != 0; 1083 s = splusb(); 1084 DPRINTF(("uhci_run: setting run=%d\n", run)); 1085 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1086 for(n = 0; n < 10; n++) { 1087 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1088 /* return when we've entered the state we want */ 1089 if (run == running) { 1090 splx(s); 1091 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1092 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1093 return (USBD_NORMAL_COMPLETION); 1094 } 1095 usb_delay_ms(&sc->sc_bus, 1); 1096 } 1097 splx(s); 1098 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1099 run ? "start" : "stop"); 1100 return (USBD_IOERROR); 1101 } 1102 1103 /* 1104 * Memory management routines. 1105 * uhci_alloc_std allocates TDs 1106 * uhci_alloc_sqh allocates QHs 1107 * These two routines do their own free list management, 1108 * partly for speed, partly because allocating DMAable memory 1109 * has page size granularaity so much memory would be wasted if 1110 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1111 */ 1112 1113 uhci_soft_td_t * 1114 uhci_alloc_std(sc) 1115 uhci_softc_t *sc; 1116 { 1117 uhci_soft_td_t *std; 1118 usbd_status r; 1119 int i, offs; 1120 usb_dma_t dma; 1121 1122 if (!sc->sc_freetds) { 1123 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1124 r = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1125 UHCI_TD_ALIGN, &dma); 1126 if (r != USBD_NORMAL_COMPLETION) 1127 return (0); 1128 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1129 offs = i * UHCI_STD_SIZE; 1130 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1131 std->physaddr = DMAADDR(&dma) + offs; 1132 std->link.std = sc->sc_freetds; 1133 sc->sc_freetds = std; 1134 } 1135 } 1136 std = sc->sc_freetds; 1137 sc->sc_freetds = std->link.std; 1138 memset(&std->td, 0, sizeof(uhci_td_t)); 1139 return std; 1140 } 1141 1142 void 1143 uhci_free_std(sc, std) 1144 uhci_softc_t *sc; 1145 uhci_soft_td_t *std; 1146 { 1147 #ifdef DIAGNOSTIC 1148 #define TD_IS_FREE 0x12345678 1149 if (LE(std->td.td_token) == TD_IS_FREE) { 1150 printf("uhci_free_std: freeing free TD %p\n", std); 1151 return; 1152 } 1153 std->td.td_token = LE(TD_IS_FREE); 1154 #endif 1155 std->link.std = sc->sc_freetds; 1156 sc->sc_freetds = std; 1157 } 1158 1159 uhci_soft_qh_t * 1160 uhci_alloc_sqh(sc) 1161 uhci_softc_t *sc; 1162 { 1163 uhci_soft_qh_t *sqh; 1164 usbd_status r; 1165 int i, offs; 1166 usb_dma_t dma; 1167 1168 if (!sc->sc_freeqhs) { 1169 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1170 r = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1171 UHCI_QH_ALIGN, &dma); 1172 if (r != USBD_NORMAL_COMPLETION) 1173 return 0; 1174 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1175 offs = i * UHCI_SQH_SIZE; 1176 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1177 sqh->physaddr = DMAADDR(&dma) + offs; 1178 sqh->hlink = sc->sc_freeqhs; 1179 sc->sc_freeqhs = sqh; 1180 } 1181 } 1182 sqh = sc->sc_freeqhs; 1183 sc->sc_freeqhs = sqh->hlink; 1184 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1185 return (sqh); 1186 } 1187 1188 void 1189 uhci_free_sqh(sc, sqh) 1190 uhci_softc_t *sc; 1191 uhci_soft_qh_t *sqh; 1192 { 1193 sqh->hlink = sc->sc_freeqhs; 1194 sc->sc_freeqhs = sqh; 1195 } 1196 1197 #if 0 1198 /* 1199 * Enter a list of transfers onto a control queue. 1200 * Called at splusb() 1201 */ 1202 void 1203 uhci_enter_ctl_q(sc, sqh, ii) 1204 uhci_softc_t *sc; 1205 uhci_soft_qh_t *sqh; 1206 uhci_intr_info_t *ii; 1207 { 1208 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1209 1210 } 1211 #endif 1212 1213 void 1214 uhci_free_std_chain(sc, std, stdend) 1215 uhci_softc_t *sc; 1216 uhci_soft_td_t *std; 1217 uhci_soft_td_t *stdend; 1218 { 1219 uhci_soft_td_t *p; 1220 1221 for (; std != stdend; std = p) { 1222 p = std->link.std; 1223 uhci_free_std(sc, std); 1224 } 1225 } 1226 1227 usbd_status 1228 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1229 struct uhci_pipe *upipe; 1230 uhci_softc_t *sc; 1231 int len, rd, shortok; 1232 usb_dma_t *dma; 1233 uhci_soft_td_t **sp, **ep; 1234 { 1235 uhci_soft_td_t *p, *lastp; 1236 uhci_physaddr_t lastlink; 1237 int i, ntd, l, tog, maxp; 1238 u_int32_t status; 1239 int addr = upipe->pipe.device->address; 1240 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1241 1242 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1243 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1244 upipe->pipe.device->lowspeed, shortok)); 1245 if (len == 0) { 1246 *sp = *ep = 0; 1247 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1248 return (USBD_NORMAL_COMPLETION); 1249 } 1250 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1251 if (maxp == 0) { 1252 printf("uhci_alloc_std_chain: maxp=0\n"); 1253 return (USBD_INVAL); 1254 } 1255 ntd = (len + maxp - 1) / maxp; 1256 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1257 tog = upipe->nexttoggle; 1258 if (ntd % 2 == 0) 1259 tog ^= 1; 1260 upipe->nexttoggle = tog ^ 1; 1261 lastp = 0; 1262 lastlink = UHCI_PTR_T; 1263 ntd--; 1264 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1265 if (upipe->pipe.device->lowspeed) 1266 status |= UHCI_TD_LS; 1267 if (shortok) 1268 status |= UHCI_TD_SPD; 1269 for (i = ntd; i >= 0; i--) { 1270 p = uhci_alloc_std(sc); 1271 if (!p) { 1272 uhci_free_std_chain(sc, lastp, 0); 1273 return (USBD_NOMEM); 1274 } 1275 p->link.std = lastp; 1276 p->td.td_link = LE(lastlink); 1277 lastp = p; 1278 lastlink = p->physaddr; 1279 p->td.td_status = LE(status); 1280 if (i == ntd) { 1281 /* last TD */ 1282 l = len % maxp; 1283 if (l == 0) l = maxp; 1284 *ep = p; 1285 } else 1286 l = maxp; 1287 p->td.td_token = 1288 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1289 UHCI_TD_OUT(l, endpt, addr, tog)); 1290 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1291 tog ^= 1; 1292 } 1293 *sp = lastp; 1294 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1295 upipe->nexttoggle)); 1296 return (USBD_NORMAL_COMPLETION); 1297 } 1298 1299 void 1300 uhci_device_clear_toggle(pipe) 1301 usbd_pipe_handle pipe; 1302 { 1303 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1304 upipe->nexttoggle = 0; 1305 } 1306 1307 void 1308 uhci_noop(pipe) 1309 usbd_pipe_handle pipe; 1310 { 1311 } 1312 1313 usbd_status 1314 uhci_device_bulk_transfer(reqh) 1315 usbd_request_handle reqh; 1316 { 1317 usbd_status r; 1318 1319 r = usb_insert_transfer(reqh); 1320 if (r != USBD_NORMAL_COMPLETION) 1321 return (r); 1322 else 1323 return (uhci_device_bulk_start(reqh)); 1324 } 1325 1326 usbd_status 1327 uhci_device_bulk_start(reqh) 1328 usbd_request_handle reqh; 1329 { 1330 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1331 usbd_device_handle dev = upipe->pipe.device; 1332 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1333 uhci_intr_info_t *ii = upipe->iinfo; 1334 uhci_soft_td_t *xfer, *xferend; 1335 uhci_soft_qh_t *sqh; 1336 usbd_status r; 1337 int len, isread, endpt; 1338 int s; 1339 1340 DPRINTFN(3, ("uhci_device_bulk_transfer: reqh=%p len=%d flags=%d\n", 1341 reqh, reqh->length, reqh->flags)); 1342 1343 #ifdef DIAGNOSTIC 1344 if (reqh->rqflags & URQ_REQUEST) 1345 panic("uhci_device_bulk_transfer: a request\n"); 1346 #endif 1347 1348 len = reqh->length; 1349 endpt = reqh->pipe->endpoint->edesc->bEndpointAddress; 1350 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1351 sqh = upipe->u.bulk.sqh; 1352 1353 upipe->u.bulk.isread = isread; 1354 upipe->u.bulk.length = len; 1355 1356 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1357 reqh->flags & USBD_SHORT_XFER_OK, 1358 &reqh->dmabuf, &xfer, &xferend); 1359 if (r != USBD_NORMAL_COMPLETION) 1360 return (r); 1361 xferend->td.td_status |= LE(UHCI_TD_IOC); 1362 1363 #ifdef USB_DEBUG 1364 if (uhcidebug > 8) { 1365 DPRINTF(("uhci_device_bulk_transfer: xfer(1)\n")); 1366 uhci_dump_tds(xfer); 1367 } 1368 #endif 1369 1370 /* Set up interrupt info. */ 1371 ii->reqh = reqh; 1372 ii->stdstart = xfer; 1373 ii->stdend = xferend; 1374 #ifdef DIAGNOSTIC 1375 ii->isdone = 0; 1376 #endif 1377 1378 sqh->elink = xfer; 1379 sqh->qh.qh_elink = LE(xfer->physaddr); 1380 sqh->intr_info = ii; 1381 1382 s = splusb(); 1383 uhci_add_bulk(sc, sqh); 1384 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1385 1386 if (reqh->timeout && !sc->sc_bus.use_polling) { 1387 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(reqh->timeout), 1388 ii->timeout_handle); 1389 } 1390 splx(s); 1391 1392 #ifdef USB_DEBUG 1393 if (uhcidebug > 10) { 1394 DPRINTF(("uhci_device_bulk_transfer: xfer(2)\n")); 1395 uhci_dump_tds(xfer); 1396 } 1397 #endif 1398 1399 if (sc->sc_bus.use_polling) 1400 uhci_waitintr(sc, reqh); 1401 1402 return (USBD_IN_PROGRESS); 1403 } 1404 1405 /* Abort a device bulk request. */ 1406 void 1407 uhci_device_bulk_abort(reqh) 1408 usbd_request_handle reqh; 1409 { 1410 DPRINTF(("uhci_device_bulk_abort:\n")); 1411 uhci_abort_req(reqh, USBD_CANCELLED); 1412 } 1413 1414 void 1415 uhci_abort_req(reqh, status) 1416 usbd_request_handle reqh; 1417 usbd_status status; 1418 { 1419 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1420 uhci_intr_info_t *ii = upipe->iinfo; 1421 uhci_soft_td_t *std; 1422 1423 /* Make interrupt routine ignore it, */ 1424 reqh->status = status; 1425 1426 /* don't timeout, */ 1427 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1428 1429 /* make hardware ignore it, */ 1430 for (std = ii->stdstart; std != 0; std = std->link.std) 1431 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1432 1433 reqh->hcpriv = ii; 1434 1435 /* make sure hardware has completed, */ 1436 if (reqh->device->bus->intr_context) { 1437 /* We have no process context, so we can't use tsleep(). */ 1438 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1439 } else { 1440 usb_delay_ms(reqh->pipe->device->bus, 1); 1441 /* and call final part of interrupt handler. */ 1442 uhci_abort_req_end(reqh); 1443 } 1444 } 1445 1446 void 1447 uhci_abort_req_end(v) 1448 void *v; 1449 { 1450 usbd_request_handle reqh = v; 1451 int s; 1452 1453 s = splusb(); 1454 usb_transfer_complete(reqh); 1455 splx(s); 1456 } 1457 1458 /* Close a device bulk pipe. */ 1459 void 1460 uhci_device_bulk_close(pipe) 1461 usbd_pipe_handle pipe; 1462 { 1463 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1464 usbd_device_handle dev = upipe->pipe.device; 1465 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1466 1467 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1468 uhci_free_intr_info(upipe->iinfo); 1469 /* XXX free other resources */ 1470 } 1471 1472 usbd_status 1473 uhci_device_ctrl_transfer(reqh) 1474 usbd_request_handle reqh; 1475 { 1476 usbd_status r; 1477 1478 r = usb_insert_transfer(reqh); 1479 if (r != USBD_NORMAL_COMPLETION) 1480 return (r); 1481 else 1482 return (uhci_device_ctrl_start(reqh)); 1483 } 1484 1485 usbd_status 1486 uhci_device_ctrl_start(reqh) 1487 usbd_request_handle reqh; 1488 { 1489 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 1490 usbd_status r; 1491 1492 #ifdef DIAGNOSTIC 1493 if (!(reqh->rqflags & URQ_REQUEST)) 1494 panic("uhci_device_ctrl_transfer: not a request\n"); 1495 #endif 1496 1497 r = uhci_device_request(reqh); 1498 if (r != USBD_NORMAL_COMPLETION) 1499 return (r); 1500 1501 if (sc->sc_bus.use_polling) 1502 uhci_waitintr(sc, reqh); 1503 return (USBD_IN_PROGRESS); 1504 } 1505 1506 usbd_status 1507 uhci_device_intr_transfer(reqh) 1508 usbd_request_handle reqh; 1509 { 1510 usbd_status r; 1511 1512 r = usb_insert_transfer(reqh); 1513 if (r != USBD_NORMAL_COMPLETION) 1514 return (r); 1515 else 1516 return (uhci_device_intr_start(reqh)); 1517 } 1518 1519 usbd_status 1520 uhci_device_intr_start(reqh) 1521 usbd_request_handle reqh; 1522 { 1523 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1524 usbd_device_handle dev = upipe->pipe.device; 1525 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1526 uhci_intr_info_t *ii = upipe->iinfo; 1527 uhci_soft_td_t *xfer, *xferend; 1528 uhci_soft_qh_t *sqh; 1529 usbd_status r; 1530 int i, s; 1531 1532 DPRINTFN(3,("uhci_device_intr_transfer: reqh=%p len=%d flags=%d\n", 1533 reqh, reqh->length, reqh->flags)); 1534 1535 #ifdef DIAGNOSTIC 1536 if (reqh->rqflags & URQ_REQUEST) 1537 panic("uhci_device_intr_transfer: a request\n"); 1538 #endif 1539 1540 r = uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 1541 reqh->flags & USBD_SHORT_XFER_OK, 1542 &reqh->dmabuf, &xfer, &xferend); 1543 if (r != USBD_NORMAL_COMPLETION) 1544 return (r); 1545 xferend->td.td_status |= LE(UHCI_TD_IOC); 1546 1547 #ifdef USB_DEBUG 1548 if (uhcidebug > 10) { 1549 DPRINTF(("uhci_device_intr_transfer: xfer(1)\n")); 1550 uhci_dump_tds(xfer); 1551 uhci_dump_qh(upipe->u.intr.qhs[0]); 1552 } 1553 #endif 1554 1555 s = splusb(); 1556 /* Set up interrupt info. */ 1557 ii->reqh = reqh; 1558 ii->stdstart = xfer; 1559 ii->stdend = xferend; 1560 #ifdef DIAGNOSTIC 1561 ii->isdone = 0; 1562 #endif 1563 1564 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1565 upipe->u.intr.qhs[0])); 1566 for (i = 0; i < upipe->u.intr.npoll; i++) { 1567 sqh = upipe->u.intr.qhs[i]; 1568 sqh->elink = xfer; 1569 sqh->qh.qh_elink = LE(xfer->physaddr); 1570 } 1571 splx(s); 1572 1573 #ifdef USB_DEBUG 1574 if (uhcidebug > 10) { 1575 DPRINTF(("uhci_device_intr_transfer: xfer(2)\n")); 1576 uhci_dump_tds(xfer); 1577 uhci_dump_qh(upipe->u.intr.qhs[0]); 1578 } 1579 #endif 1580 1581 return (USBD_IN_PROGRESS); 1582 } 1583 1584 /* Abort a device control request. */ 1585 void 1586 uhci_device_ctrl_abort(reqh) 1587 usbd_request_handle reqh; 1588 { 1589 DPRINTF(("uhci_device_ctrl_abort:\n")); 1590 uhci_abort_req(reqh, USBD_CANCELLED); 1591 } 1592 1593 /* Close a device control pipe. */ 1594 void 1595 uhci_device_ctrl_close(pipe) 1596 usbd_pipe_handle pipe; 1597 { 1598 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1599 1600 uhci_free_intr_info(upipe->iinfo); 1601 /* XXX free other resources */ 1602 } 1603 1604 /* Abort a device interrupt request. */ 1605 void 1606 uhci_device_intr_abort(reqh) 1607 usbd_request_handle reqh; 1608 { 1609 DPRINTFN(1,("uhci_device_intr_abort: reqh=%p\n", reqh)); 1610 if (reqh->pipe->intrreqh == reqh) { 1611 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1612 reqh->pipe->intrreqh = 0; 1613 } 1614 uhci_abort_req(reqh, USBD_CANCELLED); 1615 } 1616 1617 /* Close a device interrupt pipe. */ 1618 void 1619 uhci_device_intr_close(pipe) 1620 usbd_pipe_handle pipe; 1621 { 1622 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1623 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1624 int i, s, npoll; 1625 1626 upipe->iinfo->stdstart = 0; /* inactive */ 1627 1628 /* Unlink descriptors from controller data structures. */ 1629 npoll = upipe->u.intr.npoll; 1630 uhci_lock_frames(sc); 1631 for (i = 0; i < npoll; i++) 1632 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1633 upipe->u.intr.qhs[i]); 1634 uhci_unlock_frames(sc); 1635 1636 /* 1637 * We now have to wait for any activity on the physical 1638 * descriptors to stop. 1639 */ 1640 usb_delay_ms(&sc->sc_bus, 2); 1641 1642 for(i = 0; i < npoll; i++) 1643 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1644 free(upipe->u.intr.qhs, M_USBHC); 1645 1646 s = splusb(); 1647 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1648 splx(s); 1649 uhci_free_intr_info(upipe->iinfo); 1650 1651 /* XXX free other resources */ 1652 } 1653 1654 usbd_status 1655 uhci_device_request(reqh) 1656 usbd_request_handle reqh; 1657 { 1658 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1659 usb_device_request_t *req = &reqh->request; 1660 usbd_device_handle dev = upipe->pipe.device; 1661 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1662 int addr = dev->address; 1663 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1664 uhci_intr_info_t *ii = upipe->iinfo; 1665 uhci_soft_td_t *setup, *xfer, *stat, *next, *xferend; 1666 uhci_soft_qh_t *sqh; 1667 int len; 1668 u_int32_t ls; 1669 usbd_status r; 1670 int isread; 1671 int s; 1672 1673 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1674 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1675 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1676 UGETW(req->wIndex), UGETW(req->wLength), 1677 addr, endpt)); 1678 1679 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1680 isread = req->bmRequestType & UT_READ; 1681 len = UGETW(req->wLength); 1682 1683 setup = upipe->u.ctl.setup; 1684 stat = upipe->u.ctl.stat; 1685 sqh = upipe->u.ctl.sqh; 1686 1687 /* Set up data transaction */ 1688 if (len != 0) { 1689 upipe->nexttoggle = 1; 1690 r = uhci_alloc_std_chain(upipe, sc, len, isread, 1691 reqh->flags & USBD_SHORT_XFER_OK, 1692 &reqh->dmabuf, &xfer, &xferend); 1693 if (r != USBD_NORMAL_COMPLETION) 1694 return (r); 1695 next = xfer; 1696 xferend->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 1705 setup->link.std = next; 1706 setup->td.td_link = LE(next->physaddr); 1707 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1708 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1709 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1710 1711 stat->link.std = 0; 1712 stat->td.td_link = LE(UHCI_PTR_T); 1713 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1714 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1715 stat->td.td_token = 1716 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1717 UHCI_TD_IN (0, endpt, addr, 1)); 1718 stat->td.td_buffer = LE(0); 1719 1720 #ifdef USB_DEBUG 1721 if (uhcidebug > 20) { 1722 DPRINTF(("uhci_device_request: before transfer\n")); 1723 uhci_dump_tds(setup); 1724 } 1725 #endif 1726 1727 /* Set up interrupt info. */ 1728 ii->reqh = reqh; 1729 ii->stdstart = setup; 1730 ii->stdend = stat; 1731 #ifdef DIAGNOSTIC 1732 ii->isdone = 0; 1733 #endif 1734 1735 sqh->elink = setup; 1736 sqh->qh.qh_elink = LE(setup->physaddr); 1737 sqh->intr_info = ii; 1738 1739 s = splusb(); 1740 uhci_add_ctrl(sc, sqh); 1741 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1742 #ifdef USB_DEBUG 1743 if (uhcidebug > 12) { 1744 uhci_soft_td_t *std; 1745 uhci_soft_qh_t *xqh; 1746 uhci_soft_qh_t *sxqh; 1747 int maxqh = 0; 1748 uhci_physaddr_t link; 1749 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1750 for (std = sc->sc_vframes[0].htd, link = 0; 1751 (link & UHCI_PTR_Q) == 0; 1752 std = std->link.std) { 1753 link = LE(std->td.td_link); 1754 uhci_dump_td(std); 1755 } 1756 for (sxqh = xqh = (uhci_soft_qh_t *)std; 1757 xqh; 1758 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1759 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1760 uhci_dump_qh(xqh); 1761 uhci_dump_qh(sxqh); 1762 } 1763 DPRINTF(("Enqueued QH:\n")); 1764 uhci_dump_qh(sqh); 1765 uhci_dump_tds(sqh->elink); 1766 } 1767 #endif 1768 if (reqh->timeout && !sc->sc_bus.use_polling) { 1769 usb_timeout(uhci_timeout, ii, 1770 MS_TO_TICKS(reqh->timeout), ii->timeout_handle); 1771 } 1772 splx(s); 1773 1774 return (USBD_NORMAL_COMPLETION); 1775 } 1776 1777 usbd_status 1778 uhci_device_isoc_transfer(reqh) 1779 usbd_request_handle reqh; 1780 { 1781 usbd_status r; 1782 1783 DPRINTFN(5,("uhci_device_isoc_transfer: reqh=%p\n", reqh)); 1784 1785 /* Put it on our queue, */ 1786 r = usb_insert_transfer(reqh); 1787 1788 /* bail out on error, */ 1789 if (r != USBD_NORMAL_COMPLETION && r != USBD_IN_PROGRESS) 1790 return (r); 1791 1792 /* XXX should check inuse here */ 1793 1794 /* insert into schedule, */ 1795 uhci_device_isoc_enter(reqh); 1796 1797 /* and put on interrupt list if the pipe wasn't running */ 1798 if (r == USBD_NORMAL_COMPLETION) 1799 uhci_device_isoc_start(reqh); 1800 1801 return (r); 1802 } 1803 1804 void 1805 uhci_device_isoc_enter(reqh) 1806 usbd_request_handle reqh; 1807 { 1808 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1809 usbd_device_handle dev = upipe->pipe.device; 1810 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1811 struct iso *iso = &upipe->u.iso; 1812 uhci_soft_td_t *std; 1813 u_int32_t buf, len, status; 1814 int s, i, next, nframes; 1815 1816 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d reqh=%p " 1817 "nframes=%d\n", 1818 iso->inuse, iso->next, reqh, reqh->nframes)); 1819 1820 if (reqh->status == USBD_IN_PROGRESS) { 1821 /* This request has already been entered into the frame list */ 1822 } 1823 1824 #ifdef DIAGNOSTIC 1825 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1826 printf("uhci_device_isoc_enter: overflow!\n"); 1827 #endif 1828 1829 next = iso->next; 1830 if (next == -1) { 1831 /* Not in use yet, schedule it a few frames ahead. */ 1832 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 1833 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 1834 } 1835 1836 reqh->status = USBD_IN_PROGRESS; 1837 reqh->hcprivint = next; 1838 1839 buf = DMAADDR(&reqh->dmabuf); 1840 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 1841 UHCI_TD_ACTIVE | 1842 UHCI_TD_IOS)); 1843 nframes = reqh->nframes; 1844 s = splusb(); 1845 for (i = 0; i < nframes; i++) { 1846 std = iso->stds[next]; 1847 if (++next >= UHCI_VFRAMELIST_COUNT) 1848 next = 0; 1849 len = reqh->frlengths[i]; 1850 std->td.td_buffer = LE(buf); 1851 if (i == nframes - 1) 1852 status |= LE(UHCI_TD_IOC); 1853 std->td.td_status = status; 1854 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 1855 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 1856 #ifdef USB_DEBUG 1857 if (uhcidebug > 5) { 1858 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 1859 uhci_dump_td(std); 1860 } 1861 #endif 1862 buf += len; 1863 } 1864 iso->next = next; 1865 iso->inuse += reqh->nframes; 1866 1867 splx(s); 1868 } 1869 1870 usbd_status 1871 uhci_device_isoc_start(reqh) 1872 usbd_request_handle reqh; 1873 { 1874 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1875 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 1876 uhci_intr_info_t *ii = upipe->iinfo; 1877 uhci_soft_td_t *end; 1878 int s, i; 1879 1880 #ifdef DIAGNOSTIC 1881 if (reqh->status != USBD_IN_PROGRESS) 1882 printf("uhci_device_isoc_start: not in progress %p\n", reqh); 1883 #endif 1884 1885 /* Find the last TD */ 1886 i = reqh->hcprivint + reqh->nframes; 1887 if (i >= UHCI_VFRAMELIST_COUNT) 1888 i -= UHCI_VFRAMELIST_COUNT; 1889 end = upipe->u.iso.stds[i]; 1890 1891 s = splusb(); 1892 1893 /* Set up interrupt info. */ 1894 ii->reqh = reqh; 1895 ii->stdstart = end; 1896 ii->stdend = end; 1897 #ifdef DIAGNOSTIC 1898 ii->isdone = 0; 1899 #endif 1900 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1901 1902 splx(s); 1903 1904 return (USBD_IN_PROGRESS); 1905 } 1906 1907 void 1908 uhci_device_isoc_abort(reqh) 1909 usbd_request_handle reqh; 1910 { 1911 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 1912 uhci_intr_info_t *ii = upipe->iinfo; 1913 uhci_soft_td_t **stds = upipe->u.iso.stds; 1914 uhci_soft_td_t *std; 1915 int i, n, nframes; 1916 1917 /* Make interrupt routine ignore it, */ 1918 reqh->status = USBD_CANCELLED; 1919 1920 /* make hardware ignore it, */ 1921 nframes = reqh->nframes; 1922 n = reqh->hcprivint; 1923 for (i = 0; i < nframes; i++) { 1924 std = stds[n]; 1925 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1926 if (++n >= UHCI_VFRAMELIST_COUNT) 1927 n = 0; 1928 } 1929 1930 reqh->hcpriv = ii; 1931 1932 /* make sure hardware has completed, */ 1933 if (reqh->device->bus->intr_context) { 1934 /* We have no process context, so we can't use tsleep(). */ 1935 timeout(uhci_abort_req_end, reqh, hz / USB_FRAMES_PER_SECOND); 1936 } else { 1937 usb_delay_ms(reqh->pipe->device->bus, 1); 1938 /* and call final part of interrupt handler. */ 1939 uhci_abort_req_end(reqh); 1940 } 1941 } 1942 1943 void 1944 uhci_device_isoc_close(pipe) 1945 usbd_pipe_handle pipe; 1946 { 1947 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1948 usbd_device_handle dev = upipe->pipe.device; 1949 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1950 uhci_soft_td_t *std, *vstd; 1951 struct iso *iso; 1952 int i; 1953 1954 /* 1955 * Make sure all TDs are marked as inactive. 1956 * Wait for completion. 1957 * Unschedule. 1958 * Deallocate. 1959 */ 1960 iso = &upipe->u.iso; 1961 1962 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 1963 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 1964 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 1965 1966 uhci_lock_frames(sc); 1967 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 1968 std = iso->stds[i]; 1969 for (vstd = sc->sc_vframes[i].htd; 1970 vstd && vstd->link.std != std; 1971 vstd = vstd->link.std) 1972 ; 1973 if (!vstd) { 1974 /*panic*/ 1975 printf("uhci_device_isoc_close: %p not found\n", std); 1976 uhci_unlock_frames(sc); 1977 return; 1978 } 1979 vstd->link = std->link; 1980 vstd->td.td_link = std->td.td_link; 1981 uhci_free_std(sc, std); 1982 } 1983 uhci_unlock_frames(sc); 1984 1985 free(iso->stds, M_USBHC); 1986 } 1987 1988 usbd_status 1989 uhci_setup_isoc(pipe) 1990 usbd_pipe_handle pipe; 1991 { 1992 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1993 usbd_device_handle dev = upipe->pipe.device; 1994 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1995 int addr = upipe->pipe.device->address; 1996 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1997 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 1998 uhci_soft_td_t *std, *vstd; 1999 u_int32_t token; 2000 struct iso *iso; 2001 int i; 2002 2003 iso = &upipe->u.iso; 2004 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2005 M_USBHC, M_WAITOK); 2006 2007 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2008 UHCI_TD_OUT(0, endpt, addr, 0)); 2009 2010 /* Allocate the TDs and mark as inactive; */ 2011 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2012 std = uhci_alloc_std(sc); 2013 if (std == 0) 2014 goto bad; 2015 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2016 std->td.td_token = token; 2017 iso->stds[i] = std; 2018 } 2019 2020 /* Insert TDs into schedule. */ 2021 uhci_lock_frames(sc); 2022 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2023 std = iso->stds[i]; 2024 vstd = sc->sc_vframes[i].htd; 2025 std->link = vstd->link; 2026 std->td.td_link = vstd->td.td_link; 2027 vstd->link.std = std; 2028 vstd->td.td_link = LE(std->physaddr); 2029 } 2030 uhci_unlock_frames(sc); 2031 2032 iso->next = -1; 2033 iso->inuse = 0; 2034 2035 return (USBD_NORMAL_COMPLETION); 2036 2037 bad: 2038 while (--i >= 0) 2039 uhci_free_std(sc, iso->stds[i]); 2040 free(iso->stds, M_USBHC); 2041 return (USBD_NOMEM); 2042 } 2043 2044 void 2045 uhci_device_isoc_done(reqh) 2046 usbd_request_handle reqh; 2047 { 2048 uhci_intr_info_t *ii = reqh->hcpriv; 2049 2050 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", reqh->actlen)); 2051 2052 /* Turn off the interrupt since it is active even if the TD is not. */ 2053 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2054 2055 LIST_REMOVE(ii, list); /* remove from active list */ 2056 } 2057 2058 void 2059 uhci_device_intr_done(reqh) 2060 usbd_request_handle reqh; 2061 { 2062 uhci_intr_info_t *ii = reqh->hcpriv; 2063 uhci_softc_t *sc = ii->sc; 2064 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2065 uhci_soft_qh_t *sqh; 2066 int i, npoll; 2067 2068 DPRINTFN(5, ("uhci_intr_done: length=%d\n", reqh->actlen)); 2069 2070 npoll = upipe->u.intr.npoll; 2071 for(i = 0; i < npoll; i++) { 2072 sqh = upipe->u.intr.qhs[i]; 2073 sqh->elink = 0; 2074 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2075 } 2076 uhci_free_std_chain(sc, ii->stdstart, 0); 2077 2078 /* XXX Wasteful. */ 2079 if (reqh->pipe->repeat) { 2080 uhci_soft_td_t *xfer, *xferend; 2081 2082 /* This alloc cannot fail since we freed the chain above. */ 2083 uhci_alloc_std_chain(upipe, sc, reqh->length, 1, 2084 reqh->flags & USBD_SHORT_XFER_OK, 2085 &reqh->dmabuf, &xfer, &xferend); 2086 xferend->td.td_status |= LE(UHCI_TD_IOC); 2087 2088 #ifdef USB_DEBUG 2089 if (uhcidebug > 10) { 2090 DPRINTF(("uhci_device_intr_done: xfer(1)\n")); 2091 uhci_dump_tds(xfer); 2092 uhci_dump_qh(upipe->u.intr.qhs[0]); 2093 } 2094 #endif 2095 2096 ii->stdstart = xfer; 2097 ii->stdend = xferend; 2098 #ifdef DIAGNOSTIC 2099 ii->isdone = 0; 2100 #endif 2101 for (i = 0; i < npoll; i++) { 2102 sqh = upipe->u.intr.qhs[i]; 2103 sqh->elink = xfer; 2104 sqh->qh.qh_elink = LE(xfer->physaddr); 2105 } 2106 } else { 2107 ii->stdstart = 0; /* mark as inactive */ 2108 } 2109 } 2110 2111 /* Deallocate request data structures */ 2112 void 2113 uhci_device_ctrl_done(reqh) 2114 usbd_request_handle reqh; 2115 { 2116 uhci_intr_info_t *ii = reqh->hcpriv; 2117 uhci_softc_t *sc = ii->sc; 2118 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2119 2120 #ifdef DIAGNOSTIC 2121 if (!(reqh->rqflags & URQ_REQUEST)) 2122 panic("uhci_ctrl_done: not a request\n"); 2123 #endif 2124 2125 LIST_REMOVE(ii, list); /* remove from active list */ 2126 2127 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2128 2129 if (upipe->u.ctl.length != 0) 2130 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2131 2132 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", reqh->actlen)); 2133 } 2134 2135 /* Deallocate request data structures */ 2136 void 2137 uhci_device_bulk_done(reqh) 2138 usbd_request_handle reqh; 2139 { 2140 uhci_intr_info_t *ii = reqh->hcpriv; 2141 uhci_softc_t *sc = ii->sc; 2142 struct uhci_pipe *upipe = (struct uhci_pipe *)reqh->pipe; 2143 2144 LIST_REMOVE(ii, list); /* remove from active list */ 2145 2146 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2147 2148 uhci_free_std_chain(sc, ii->stdstart, 0); 2149 2150 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", reqh->actlen)); 2151 } 2152 2153 /* Add interrupt QH, called with vflock. */ 2154 void 2155 uhci_add_intr(sc, n, sqh) 2156 uhci_softc_t *sc; 2157 int n; 2158 uhci_soft_qh_t *sqh; 2159 { 2160 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2161 uhci_soft_qh_t *eqh; 2162 2163 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2164 eqh = vf->eqh; 2165 sqh->hlink = eqh->hlink; 2166 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2167 eqh->hlink = sqh; 2168 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2169 vf->eqh = sqh; 2170 vf->bandwidth++; 2171 } 2172 2173 /* Remove interrupt QH, called with vflock. */ 2174 void 2175 uhci_remove_intr(sc, n, sqh) 2176 uhci_softc_t *sc; 2177 int n; 2178 uhci_soft_qh_t *sqh; 2179 { 2180 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2181 uhci_soft_qh_t *pqh; 2182 2183 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2184 2185 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2186 #if defined(DIAGNOSTIC) || defined(USB_DEBUG) 2187 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2188 DPRINTF(("uhci_remove_intr: QH not found\n")); 2189 return; 2190 } 2191 #else 2192 ; 2193 #endif 2194 pqh->hlink = sqh->hlink; 2195 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2196 if (vf->eqh == sqh) 2197 vf->eqh = pqh; 2198 vf->bandwidth--; 2199 } 2200 2201 usbd_status 2202 uhci_device_setintr(sc, upipe, ival) 2203 uhci_softc_t *sc; 2204 struct uhci_pipe *upipe; 2205 int ival; 2206 { 2207 uhci_soft_qh_t *sqh; 2208 int i, npoll, s; 2209 u_int bestbw, bw, bestoffs, offs; 2210 2211 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2212 if (ival == 0) { 2213 printf("uhci_setintr: 0 interval\n"); 2214 return (USBD_INVAL); 2215 } 2216 2217 if (ival > UHCI_VFRAMELIST_COUNT) 2218 ival = UHCI_VFRAMELIST_COUNT; 2219 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2220 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2221 2222 upipe->u.intr.npoll = npoll; 2223 upipe->u.intr.qhs = 2224 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2225 2226 /* 2227 * Figure out which offset in the schedule that has most 2228 * bandwidth left over. 2229 */ 2230 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2231 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2232 for (bw = i = 0; i < npoll; i++) 2233 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2234 if (bw < bestbw) { 2235 bestbw = bw; 2236 bestoffs = offs; 2237 } 2238 } 2239 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2240 2241 upipe->iinfo->stdstart = 0; 2242 for(i = 0; i < npoll; i++) { 2243 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2244 sqh->elink = 0; 2245 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2246 sqh->pos = MOD(i * ival + bestoffs); 2247 sqh->intr_info = upipe->iinfo; 2248 } 2249 #undef MOD 2250 2251 s = splusb(); 2252 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2253 splx(s); 2254 2255 uhci_lock_frames(sc); 2256 /* Enter QHs into the controller data structures. */ 2257 for(i = 0; i < npoll; i++) 2258 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2259 upipe->u.intr.qhs[i]); 2260 uhci_unlock_frames(sc); 2261 2262 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2263 return (USBD_NORMAL_COMPLETION); 2264 } 2265 2266 /* Open a new pipe. */ 2267 usbd_status 2268 uhci_open(pipe) 2269 usbd_pipe_handle pipe; 2270 { 2271 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2272 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2273 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2274 usbd_status r; 2275 2276 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2277 pipe, pipe->device->address, 2278 ed->bEndpointAddress, sc->sc_addr)); 2279 if (pipe->device->address == sc->sc_addr) { 2280 switch (ed->bEndpointAddress) { 2281 case USB_CONTROL_ENDPOINT: 2282 pipe->methods = &uhci_root_ctrl_methods; 2283 break; 2284 case UE_DIR_IN | UHCI_INTR_ENDPT: 2285 pipe->methods = &uhci_root_intr_methods; 2286 break; 2287 default: 2288 return (USBD_INVAL); 2289 } 2290 } else { 2291 upipe->iinfo = uhci_alloc_intr_info(sc); 2292 if (upipe->iinfo == 0) 2293 return (USBD_NOMEM); 2294 switch (ed->bmAttributes & UE_XFERTYPE) { 2295 case UE_CONTROL: 2296 pipe->methods = &uhci_device_ctrl_methods; 2297 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2298 if (upipe->u.ctl.sqh == 0) 2299 goto bad; 2300 upipe->u.ctl.setup = uhci_alloc_std(sc); 2301 if (upipe->u.ctl.setup == 0) { 2302 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2303 goto bad; 2304 } 2305 upipe->u.ctl.stat = uhci_alloc_std(sc); 2306 if (upipe->u.ctl.stat == 0) { 2307 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2308 uhci_free_std(sc, upipe->u.ctl.setup); 2309 goto bad; 2310 } 2311 r = usb_allocmem(&sc->sc_bus, 2312 sizeof(usb_device_request_t), 2313 0, &upipe->u.ctl.reqdma); 2314 if (r != USBD_NORMAL_COMPLETION) { 2315 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2316 uhci_free_std(sc, upipe->u.ctl.setup); 2317 uhci_free_std(sc, upipe->u.ctl.stat); 2318 goto bad; 2319 } 2320 break; 2321 case UE_INTERRUPT: 2322 pipe->methods = &uhci_device_intr_methods; 2323 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2324 case UE_ISOCHRONOUS: 2325 pipe->methods = &uhci_device_isoc_methods; 2326 return (uhci_setup_isoc(pipe)); 2327 case UE_BULK: 2328 pipe->methods = &uhci_device_bulk_methods; 2329 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2330 if (upipe->u.bulk.sqh == 0) 2331 goto bad; 2332 break; 2333 } 2334 } 2335 return (USBD_NORMAL_COMPLETION); 2336 2337 bad: 2338 uhci_free_intr_info(upipe->iinfo); 2339 return (USBD_NOMEM); 2340 } 2341 2342 /* 2343 * Data structures and routines to emulate the root hub. 2344 */ 2345 usb_device_descriptor_t uhci_devd = { 2346 USB_DEVICE_DESCRIPTOR_SIZE, 2347 UDESC_DEVICE, /* type */ 2348 {0x00, 0x01}, /* USB version */ 2349 UCLASS_HUB, /* class */ 2350 USUBCLASS_HUB, /* subclass */ 2351 0, /* protocol */ 2352 64, /* max packet */ 2353 {0},{0},{0x00,0x01}, /* device id */ 2354 1,2,0, /* string indicies */ 2355 1 /* # of configurations */ 2356 }; 2357 2358 usb_config_descriptor_t uhci_confd = { 2359 USB_CONFIG_DESCRIPTOR_SIZE, 2360 UDESC_CONFIG, 2361 {USB_CONFIG_DESCRIPTOR_SIZE + 2362 USB_INTERFACE_DESCRIPTOR_SIZE + 2363 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2364 1, 2365 1, 2366 0, 2367 UC_SELF_POWERED, 2368 0 /* max power */ 2369 }; 2370 2371 usb_interface_descriptor_t uhci_ifcd = { 2372 USB_INTERFACE_DESCRIPTOR_SIZE, 2373 UDESC_INTERFACE, 2374 0, 2375 0, 2376 1, 2377 UCLASS_HUB, 2378 USUBCLASS_HUB, 2379 0, 2380 0 2381 }; 2382 2383 usb_endpoint_descriptor_t uhci_endpd = { 2384 USB_ENDPOINT_DESCRIPTOR_SIZE, 2385 UDESC_ENDPOINT, 2386 UE_DIR_IN | UHCI_INTR_ENDPT, 2387 UE_INTERRUPT, 2388 {8}, 2389 255 2390 }; 2391 2392 usb_hub_descriptor_t uhci_hubd_piix = { 2393 USB_HUB_DESCRIPTOR_SIZE, 2394 UDESC_HUB, 2395 2, 2396 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2397 50, /* power on to power good */ 2398 0, 2399 { 0x00 }, /* both ports are removable */ 2400 }; 2401 2402 int 2403 uhci_str(p, l, s) 2404 usb_string_descriptor_t *p; 2405 int l; 2406 char *s; 2407 { 2408 int i; 2409 2410 if (l == 0) 2411 return (0); 2412 p->bLength = 2 * strlen(s) + 2; 2413 if (l == 1) 2414 return (1); 2415 p->bDescriptorType = UDESC_STRING; 2416 l -= 2; 2417 for (i = 0; s[i] && l > 1; i++, l -= 2) 2418 USETW2(p->bString[i], 0, s[i]); 2419 return (2*i+2); 2420 } 2421 2422 /* 2423 * Simulate a hardware hub by handling all the necessary requests. 2424 */ 2425 usbd_status 2426 uhci_root_ctrl_transfer(reqh) 2427 usbd_request_handle reqh; 2428 { 2429 usbd_status r; 2430 2431 r = usb_insert_transfer(reqh); 2432 if (r != USBD_NORMAL_COMPLETION) 2433 return (r); 2434 else 2435 return (uhci_root_ctrl_start(reqh)); 2436 } 2437 2438 usbd_status 2439 uhci_root_ctrl_start(reqh) 2440 usbd_request_handle reqh; 2441 { 2442 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2443 usb_device_request_t *req; 2444 void *buf; 2445 int port, x; 2446 int len, value, index, status, change, l, totlen = 0; 2447 usb_port_status_t ps; 2448 usbd_status r; 2449 2450 #ifdef DIAGNOSTIC 2451 if (!(reqh->rqflags & URQ_REQUEST)) 2452 panic("uhci_root_ctrl_transfer: not a request\n"); 2453 #endif 2454 req = &reqh->request; 2455 2456 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2457 req->bmRequestType, req->bRequest)); 2458 2459 len = UGETW(req->wLength); 2460 value = UGETW(req->wValue); 2461 index = UGETW(req->wIndex); 2462 2463 if (len != 0) 2464 buf = KERNADDR(&reqh->dmabuf); 2465 #ifdef DIAGNOSTIC 2466 else 2467 buf = 0; 2468 #endif 2469 2470 #define C(x,y) ((x) | ((y) << 8)) 2471 switch(C(req->bRequest, req->bmRequestType)) { 2472 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2473 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2474 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2475 /* 2476 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2477 * for the integrated root hub. 2478 */ 2479 break; 2480 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2481 if (len > 0) { 2482 *(u_int8_t *)buf = sc->sc_conf; 2483 totlen = 1; 2484 } 2485 break; 2486 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2487 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2488 switch(value >> 8) { 2489 case UDESC_DEVICE: 2490 if ((value & 0xff) != 0) { 2491 r = USBD_IOERROR; 2492 goto ret; 2493 } 2494 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2495 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2496 memcpy(buf, &uhci_devd, l); 2497 break; 2498 case UDESC_CONFIG: 2499 if ((value & 0xff) != 0) { 2500 r = USBD_IOERROR; 2501 goto ret; 2502 } 2503 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2504 memcpy(buf, &uhci_confd, l); 2505 buf = (char *)buf + l; 2506 len -= l; 2507 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2508 totlen += l; 2509 memcpy(buf, &uhci_ifcd, l); 2510 buf = (char *)buf + l; 2511 len -= l; 2512 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2513 totlen += l; 2514 memcpy(buf, &uhci_endpd, l); 2515 break; 2516 case UDESC_STRING: 2517 if (len == 0) 2518 break; 2519 *(u_int8_t *)buf = 0; 2520 totlen = 1; 2521 switch (value & 0xff) { 2522 case 1: /* Vendor */ 2523 totlen = uhci_str(buf, len, sc->sc_vendor); 2524 break; 2525 case 2: /* Product */ 2526 totlen = uhci_str(buf, len, "UHCI root hub"); 2527 break; 2528 } 2529 break; 2530 default: 2531 r = USBD_IOERROR; 2532 goto ret; 2533 } 2534 break; 2535 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2536 if (len > 0) { 2537 *(u_int8_t *)buf = 0; 2538 totlen = 1; 2539 } 2540 break; 2541 case C(UR_GET_STATUS, UT_READ_DEVICE): 2542 if (len > 1) { 2543 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2544 totlen = 2; 2545 } 2546 break; 2547 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2548 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2549 if (len > 1) { 2550 USETW(((usb_status_t *)buf)->wStatus, 0); 2551 totlen = 2; 2552 } 2553 break; 2554 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2555 if (value >= USB_MAX_DEVICES) { 2556 r = USBD_IOERROR; 2557 goto ret; 2558 } 2559 sc->sc_addr = value; 2560 break; 2561 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2562 if (value != 0 && value != 1) { 2563 r = USBD_IOERROR; 2564 goto ret; 2565 } 2566 sc->sc_conf = value; 2567 break; 2568 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2569 break; 2570 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2571 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2572 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2573 r = USBD_IOERROR; 2574 goto ret; 2575 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2576 break; 2577 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2578 break; 2579 /* Hub requests */ 2580 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2581 break; 2582 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2583 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2584 "port=%d feature=%d\n", 2585 index, value)); 2586 if (index == 1) 2587 port = UHCI_PORTSC1; 2588 else if (index == 2) 2589 port = UHCI_PORTSC2; 2590 else { 2591 r = USBD_IOERROR; 2592 goto ret; 2593 } 2594 switch(value) { 2595 case UHF_PORT_ENABLE: 2596 x = UREAD2(sc, port); 2597 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2598 break; 2599 case UHF_PORT_SUSPEND: 2600 x = UREAD2(sc, port); 2601 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2602 break; 2603 case UHF_PORT_RESET: 2604 x = UREAD2(sc, port); 2605 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2606 break; 2607 case UHF_C_PORT_CONNECTION: 2608 x = UREAD2(sc, port); 2609 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2610 break; 2611 case UHF_C_PORT_ENABLE: 2612 x = UREAD2(sc, port); 2613 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2614 break; 2615 case UHF_C_PORT_OVER_CURRENT: 2616 x = UREAD2(sc, port); 2617 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2618 break; 2619 case UHF_C_PORT_RESET: 2620 sc->sc_isreset = 0; 2621 r = USBD_NORMAL_COMPLETION; 2622 goto ret; 2623 case UHF_PORT_CONNECTION: 2624 case UHF_PORT_OVER_CURRENT: 2625 case UHF_PORT_POWER: 2626 case UHF_PORT_LOW_SPEED: 2627 case UHF_C_PORT_SUSPEND: 2628 default: 2629 r = USBD_IOERROR; 2630 goto ret; 2631 } 2632 break; 2633 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2634 if (index == 1) 2635 port = UHCI_PORTSC1; 2636 else if (index == 2) 2637 port = UHCI_PORTSC2; 2638 else { 2639 r = USBD_IOERROR; 2640 goto ret; 2641 } 2642 if (len > 0) { 2643 *(u_int8_t *)buf = 2644 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2645 UHCI_PORTSC_LS_SHIFT; 2646 totlen = 1; 2647 } 2648 break; 2649 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2650 if (value != 0) { 2651 r = USBD_IOERROR; 2652 goto ret; 2653 } 2654 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2655 totlen = l; 2656 memcpy(buf, &uhci_hubd_piix, l); 2657 break; 2658 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2659 if (len != 4) { 2660 r = USBD_IOERROR; 2661 goto ret; 2662 } 2663 memset(buf, 0, len); 2664 totlen = len; 2665 break; 2666 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2667 if (index == 1) 2668 port = UHCI_PORTSC1; 2669 else if (index == 2) 2670 port = UHCI_PORTSC2; 2671 else { 2672 r = USBD_IOERROR; 2673 goto ret; 2674 } 2675 if (len != 4) { 2676 r = USBD_IOERROR; 2677 goto ret; 2678 } 2679 x = UREAD2(sc, port); 2680 status = change = 0; 2681 if (x & UHCI_PORTSC_CCS ) 2682 status |= UPS_CURRENT_CONNECT_STATUS; 2683 if (x & UHCI_PORTSC_CSC ) 2684 change |= UPS_C_CONNECT_STATUS; 2685 if (x & UHCI_PORTSC_PE ) 2686 status |= UPS_PORT_ENABLED; 2687 if (x & UHCI_PORTSC_POEDC) 2688 change |= UPS_C_PORT_ENABLED; 2689 if (x & UHCI_PORTSC_OCI ) 2690 status |= UPS_OVERCURRENT_INDICATOR; 2691 if (x & UHCI_PORTSC_OCIC ) 2692 change |= UPS_C_OVERCURRENT_INDICATOR; 2693 if (x & UHCI_PORTSC_SUSP ) 2694 status |= UPS_SUSPEND; 2695 if (x & UHCI_PORTSC_LSDA ) 2696 status |= UPS_LOW_SPEED; 2697 status |= UPS_PORT_POWER; 2698 if (sc->sc_isreset) 2699 change |= UPS_C_PORT_RESET; 2700 USETW(ps.wPortStatus, status); 2701 USETW(ps.wPortChange, change); 2702 l = min(len, sizeof ps); 2703 memcpy(buf, &ps, l); 2704 totlen = l; 2705 break; 2706 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2707 r = USBD_IOERROR; 2708 goto ret; 2709 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2710 break; 2711 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2712 if (index == 1) 2713 port = UHCI_PORTSC1; 2714 else if (index == 2) 2715 port = UHCI_PORTSC2; 2716 else { 2717 r = USBD_IOERROR; 2718 goto ret; 2719 } 2720 switch(value) { 2721 case UHF_PORT_ENABLE: 2722 x = UREAD2(sc, port); 2723 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2724 break; 2725 case UHF_PORT_SUSPEND: 2726 x = UREAD2(sc, port); 2727 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2728 break; 2729 case UHF_PORT_RESET: 2730 x = UREAD2(sc, port); 2731 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2732 usb_delay_ms(&sc->sc_bus, 10); 2733 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2734 delay(100); 2735 x = UREAD2(sc, port); 2736 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2737 delay(100); 2738 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2739 index, UREAD2(sc, port))); 2740 sc->sc_isreset = 1; 2741 break; 2742 case UHF_C_PORT_CONNECTION: 2743 case UHF_C_PORT_ENABLE: 2744 case UHF_C_PORT_OVER_CURRENT: 2745 case UHF_PORT_CONNECTION: 2746 case UHF_PORT_OVER_CURRENT: 2747 case UHF_PORT_POWER: 2748 case UHF_PORT_LOW_SPEED: 2749 case UHF_C_PORT_SUSPEND: 2750 case UHF_C_PORT_RESET: 2751 default: 2752 r = USBD_IOERROR; 2753 goto ret; 2754 } 2755 break; 2756 default: 2757 r = USBD_IOERROR; 2758 goto ret; 2759 } 2760 reqh->actlen = totlen; 2761 r = USBD_NORMAL_COMPLETION; 2762 ret: 2763 reqh->status = r; 2764 reqh->hcpriv = 0; 2765 usb_transfer_complete(reqh); 2766 return (USBD_IN_PROGRESS); 2767 } 2768 2769 /* Abort a root control request. */ 2770 void 2771 uhci_root_ctrl_abort(reqh) 2772 usbd_request_handle reqh; 2773 { 2774 /* Nothing to do, all transfers are syncronous. */ 2775 } 2776 2777 /* Close the root pipe. */ 2778 void 2779 uhci_root_ctrl_close(pipe) 2780 usbd_pipe_handle pipe; 2781 { 2782 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2783 2784 sc->sc_has_timo = 0; 2785 DPRINTF(("uhci_root_ctrl_close\n")); 2786 } 2787 2788 /* Abort a root interrupt request. */ 2789 void 2790 uhci_root_intr_abort(reqh) 2791 usbd_request_handle reqh; 2792 { 2793 uhci_softc_t *sc = (uhci_softc_t *)reqh->pipe->device->bus; 2794 2795 usb_untimeout(uhci_timo, reqh, reqh->timo_handle); 2796 sc->sc_has_timo = 0; 2797 } 2798 2799 usbd_status 2800 uhci_root_intr_transfer(reqh) 2801 usbd_request_handle reqh; 2802 { 2803 usbd_status r; 2804 2805 r = usb_insert_transfer(reqh); 2806 if (r != USBD_NORMAL_COMPLETION) 2807 return (r); 2808 else 2809 return (uhci_root_intr_start(reqh)); 2810 } 2811 2812 /* Start a transfer on the root interrupt pipe */ 2813 usbd_status 2814 uhci_root_intr_start(reqh) 2815 usbd_request_handle reqh; 2816 { 2817 usbd_pipe_handle pipe = reqh->pipe; 2818 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2819 2820 DPRINTFN(3, ("uhci_root_intr_transfer: reqh=%p len=%d flags=%d\n", 2821 reqh, reqh->length, reqh->flags)); 2822 2823 sc->sc_ival = MS_TO_TICKS(reqh->pipe->endpoint->edesc->bInterval); 2824 usb_timeout(uhci_timo, reqh, sc->sc_ival, reqh->timo_handle); 2825 sc->sc_has_timo = reqh; 2826 return (USBD_IN_PROGRESS); 2827 } 2828 2829 /* Close the root interrupt pipe. */ 2830 void 2831 uhci_root_intr_close(pipe) 2832 usbd_pipe_handle pipe; 2833 { 2834 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2835 2836 usb_untimeout(uhci_timo, pipe->intrreqh, pipe->intrreqh->timo_handle); 2837 sc->sc_has_timo = 0; 2838 DPRINTF(("uhci_root_intr_close\n")); 2839 } 2840 2841
Indexes created Tue Sep 30 20:09:53 GMT 2025