dwc2.c revision 1.7
1 /* $NetBSD: dwc2.c,v 1.7 2013/09/27 22:03:01 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nick Hudson 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: dwc2.c,v 1.7 2013/09/27 22:03:01 skrll Exp $"); 34 35 #include "opt_usb.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kmem.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/select.h> 43 #include <sys/proc.h> 44 #include <sys/queue.h> 45 #include <sys/cpu.h> 46 47 #include <machine/endian.h> 48 49 #include <dev/usb/usb.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdivar.h> 52 #include <dev/usb/usb_mem.h> 53 54 #include <dev/usb/usbroothub_subr.h> 55 56 #include <dwc2/dwc2.h> 57 #include <dwc2/dwc2var.h> 58 59 #include "dwc2_core.h" 60 #include "dwc2_hcd.h" 61 62 #ifdef DWC2_COUNTERS 63 #define DWC2_EVCNT_ADD(a,b) ((void)((a).ev_count += (b))) 64 #else 65 #define DWC2_EVCNT_ADD(a,b) do { } while (/*CONSTCOND*/0) 66 #endif 67 #define DWC2_EVCNT_INCR(a) DWC2_EVCNT_ADD((a), 1) 68 69 #define DWC2_DEBUG 70 #ifdef DWC2_DEBUG 71 #define DPRINTFN(n,fmt,...) do { \ 72 if (dwc2debug >= (n)) { \ 73 printf("%s: " fmt, \ 74 __FUNCTION__,## __VA_ARGS__); \ 75 } \ 76 } while (0) 77 #define DPRINTF(...) DPRINTFN(1, __VA_ARGS__) 78 int dwc2debug = 0; 79 #else 80 #define DPRINTF(...) do { } while (0) 81 #define DPRINTFN(...) do { } while (0) 82 #endif 83 84 Static usbd_status dwc2_open(usbd_pipe_handle); 85 Static void dwc2_poll(struct usbd_bus *); 86 Static void dwc2_softintr(void *); 87 Static void dwc2_waitintr(struct dwc2_softc *, usbd_xfer_handle); 88 89 Static usbd_status dwc2_allocm(struct usbd_bus *, usb_dma_t *, uint32_t); 90 Static void dwc2_freem(struct usbd_bus *, usb_dma_t *); 91 92 Static usbd_xfer_handle dwc2_allocx(struct usbd_bus *); 93 Static void dwc2_freex(struct usbd_bus *, usbd_xfer_handle); 94 Static void dwc2_get_lock(struct usbd_bus *, kmutex_t **); 95 96 Static usbd_status dwc2_root_ctrl_transfer(usbd_xfer_handle); 97 Static usbd_status dwc2_root_ctrl_start(usbd_xfer_handle); 98 Static void dwc2_root_ctrl_abort(usbd_xfer_handle); 99 Static void dwc2_root_ctrl_close(usbd_pipe_handle); 100 Static void dwc2_root_ctrl_done(usbd_xfer_handle); 101 102 Static usbd_status dwc2_root_intr_transfer(usbd_xfer_handle); 103 Static usbd_status dwc2_root_intr_start(usbd_xfer_handle); 104 Static void dwc2_root_intr_abort(usbd_xfer_handle); 105 Static void dwc2_root_intr_close(usbd_pipe_handle); 106 Static void dwc2_root_intr_done(usbd_xfer_handle); 107 108 Static usbd_status dwc2_device_ctrl_transfer(usbd_xfer_handle); 109 Static usbd_status dwc2_device_ctrl_start(usbd_xfer_handle); 110 Static void dwc2_device_ctrl_abort(usbd_xfer_handle); 111 Static void dwc2_device_ctrl_close(usbd_pipe_handle); 112 Static void dwc2_device_ctrl_done(usbd_xfer_handle); 113 114 Static usbd_status dwc2_device_bulk_transfer(usbd_xfer_handle); 115 Static usbd_status dwc2_device_bulk_start(usbd_xfer_handle); 116 Static void dwc2_device_bulk_abort(usbd_xfer_handle); 117 Static void dwc2_device_bulk_close(usbd_pipe_handle); 118 Static void dwc2_device_bulk_done(usbd_xfer_handle); 119 120 Static usbd_status dwc2_device_intr_transfer(usbd_xfer_handle); 121 Static usbd_status dwc2_device_intr_start(usbd_xfer_handle); 122 Static void dwc2_device_intr_abort(usbd_xfer_handle); 123 Static void dwc2_device_intr_close(usbd_pipe_handle); 124 Static void dwc2_device_intr_done(usbd_xfer_handle); 125 126 Static usbd_status dwc2_device_isoc_transfer(usbd_xfer_handle); 127 Static usbd_status dwc2_device_isoc_start(usbd_xfer_handle); 128 Static void dwc2_device_isoc_abort(usbd_xfer_handle); 129 Static void dwc2_device_isoc_close(usbd_pipe_handle); 130 Static void dwc2_device_isoc_done(usbd_xfer_handle); 131 132 Static usbd_status dwc2_device_start(usbd_xfer_handle); 133 Static void dwc2_device_close(usbd_pipe_handle); 134 135 Static void dwc2_close_pipe(usbd_pipe_handle); 136 Static void dwc2_abort_xfer(usbd_xfer_handle, usbd_status); 137 138 Static void dwc2_device_clear_toggle(usbd_pipe_handle); 139 Static void dwc2_noop(usbd_pipe_handle pipe); 140 141 Static int dwc2_interrupt(struct dwc2_softc *); 142 Static void dwc2_rhc(void *); 143 144 Static void dwc2_timeout(void *); 145 Static void dwc2_timeout_task(void *); 146 147 148 149 static inline void 150 dwc2_allocate_bus_bandwidth(struct dwc2_hsotg *hsotg, u16 bw, 151 usbd_xfer_handle xfer) 152 { 153 } 154 155 static inline void 156 dwc2_free_bus_bandwidth(struct dwc2_hsotg *hsotg, u16 bw, 157 usbd_xfer_handle xfer) 158 { 159 } 160 161 #define DWC2_INTR_ENDPT 1 162 163 Static const struct usbd_bus_methods dwc2_bus_methods = { 164 .open_pipe = dwc2_open, 165 .soft_intr = dwc2_softintr, 166 .do_poll = dwc2_poll, 167 .allocm = dwc2_allocm, 168 .freem = dwc2_freem, 169 .allocx = dwc2_allocx, 170 .freex = dwc2_freex, 171 .get_lock = dwc2_get_lock, 172 }; 173 174 Static const struct usbd_pipe_methods dwc2_root_ctrl_methods = { 175 .transfer = dwc2_root_ctrl_transfer, 176 .start = dwc2_root_ctrl_start, 177 .abort = dwc2_root_ctrl_abort, 178 .close = dwc2_root_ctrl_close, 179 .cleartoggle = dwc2_noop, 180 .done = dwc2_root_ctrl_done, 181 }; 182 183 Static const struct usbd_pipe_methods dwc2_root_intr_methods = { 184 .transfer = dwc2_root_intr_transfer, 185 .start = dwc2_root_intr_start, 186 .abort = dwc2_root_intr_abort, 187 .close = dwc2_root_intr_close, 188 .cleartoggle = dwc2_noop, 189 .done = dwc2_root_intr_done, 190 }; 191 192 Static const struct usbd_pipe_methods dwc2_device_ctrl_methods = { 193 .transfer = dwc2_device_ctrl_transfer, 194 .start = dwc2_device_ctrl_start, 195 .abort = dwc2_device_ctrl_abort, 196 .close = dwc2_device_ctrl_close, 197 .cleartoggle = dwc2_noop, 198 .done = dwc2_device_ctrl_done, 199 }; 200 201 Static const struct usbd_pipe_methods dwc2_device_intr_methods = { 202 .transfer = dwc2_device_intr_transfer, 203 .start = dwc2_device_intr_start, 204 .abort = dwc2_device_intr_abort, 205 .close = dwc2_device_intr_close, 206 .cleartoggle = dwc2_device_clear_toggle, 207 .done = dwc2_device_intr_done, 208 }; 209 210 Static const struct usbd_pipe_methods dwc2_device_bulk_methods = { 211 .transfer = dwc2_device_bulk_transfer, 212 .start = dwc2_device_bulk_start, 213 .abort = dwc2_device_bulk_abort, 214 .close = dwc2_device_bulk_close, 215 .cleartoggle = dwc2_device_clear_toggle, 216 .done = dwc2_device_bulk_done, 217 }; 218 219 Static const struct usbd_pipe_methods dwc2_device_isoc_methods = { 220 .transfer = dwc2_device_isoc_transfer, 221 .start = dwc2_device_isoc_start, 222 .abort = dwc2_device_isoc_abort, 223 .close = dwc2_device_isoc_close, 224 .cleartoggle = dwc2_noop, 225 .done = dwc2_device_isoc_done, 226 }; 227 228 Static usbd_status 229 dwc2_allocm(struct usbd_bus *bus, usb_dma_t *dma, uint32_t size) 230 { 231 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 232 usbd_status status; 233 234 DPRINTFN(10, "\n"); 235 236 status = usb_allocmem(&sc->sc_bus, size, 0, dma); 237 if (status == USBD_NOMEM) 238 status = usb_reserve_allocm(&sc->sc_dma_reserve, dma, size); 239 return status; 240 } 241 242 Static void 243 dwc2_freem(struct usbd_bus *bus, usb_dma_t *dma) 244 { 245 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 246 247 DPRINTFN(10, "\n"); 248 249 if (dma->block->flags & USB_DMA_RESERVE) { 250 usb_reserve_freem(&sc->sc_dma_reserve, dma); 251 return; 252 } 253 usb_freemem(&sc->sc_bus, dma); 254 } 255 256 usbd_xfer_handle 257 dwc2_allocx(struct usbd_bus *bus) 258 { 259 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 260 struct dwc2_xfer *dxfer; 261 262 DPRINTFN(10, "\n"); 263 264 DWC2_EVCNT_INCR(sc->sc_ev_xferpoolget); 265 dxfer = pool_cache_get(sc->sc_xferpool, PR_NOWAIT); 266 if (dxfer != NULL) { 267 memset(dxfer, 0, sizeof(*dxfer)); 268 269 dxfer->urb = dwc2_hcd_urb_alloc(sc->sc_hsotg, 270 DWC2_MAXISOCPACKETS, GFP_KERNEL); 271 272 #ifdef DIAGNOSTIC 273 dxfer->xfer.busy_free = XFER_BUSY; 274 #endif 275 } 276 return (usbd_xfer_handle)dxfer; 277 } 278 279 void 280 dwc2_freex(struct usbd_bus *bus, usbd_xfer_handle xfer) 281 { 282 struct dwc2_xfer *dxfer = DWC2_XFER2DXFER(xfer); 283 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 284 285 DPRINTFN(10, "\n"); 286 287 #ifdef DIAGNOSTIC 288 if (xfer->busy_free != XFER_BUSY) { 289 DPRINTF("xfer=%p not busy, 0x%08x\n", xfer, xfer->busy_free); 290 } 291 xfer->busy_free = XFER_FREE; 292 #endif 293 DWC2_EVCNT_INCR(sc->sc_ev_xferpoolput); 294 dwc2_hcd_urb_free(sc->sc_hsotg, dxfer->urb, DWC2_MAXISOCPACKETS); 295 pool_cache_put(sc->sc_xferpool, xfer); 296 } 297 298 Static void 299 dwc2_get_lock(struct usbd_bus *bus, kmutex_t **lock) 300 { 301 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 302 303 *lock = &sc->sc_lock; 304 } 305 306 Static void 307 dwc2_rhc(void *addr) 308 { 309 struct dwc2_softc *sc = addr; 310 usbd_xfer_handle xfer; 311 usbd_pipe_handle pipe; 312 u_char *p; 313 314 DPRINTF("\n"); 315 mutex_enter(&sc->sc_lock); 316 xfer = sc->sc_intrxfer; 317 318 if (xfer == NULL) { 319 /* Just ignore the change. */ 320 mutex_exit(&sc->sc_lock); 321 return; 322 323 } 324 /* set port bit */ 325 pipe = xfer->pipe; 326 327 p = KERNADDR(&xfer->dmabuf, 0); 328 329 p[0] = 0x02; /* we only have one port (1 << 1) */ 330 331 xfer->actlen = xfer->length; 332 xfer->status = USBD_NORMAL_COMPLETION; 333 334 usb_transfer_complete(xfer); 335 mutex_exit(&sc->sc_lock); 336 } 337 338 Static void 339 dwc2_softintr(void *v) 340 { 341 struct usbd_bus *bus = v; 342 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 343 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 344 struct dwc2_xfer *dxfer; 345 346 KASSERT(sc->sc_bus.use_polling || mutex_owned(&sc->sc_lock)); 347 348 mutex_spin_enter(&hsotg->lock); 349 while ((dxfer = TAILQ_FIRST(&sc->sc_complete)) != NULL) { 350 /* 351 * dwc2_abort_xfer will remove this transfer from the 352 * sc_complete queue 353 */ 354 /*XXXNH not tested */ 355 if (dxfer->xfer.hcflags & UXFER_ABORTING) { 356 cv_broadcast(&dxfer->xfer.hccv); 357 continue; 358 } 359 360 TAILQ_REMOVE(&sc->sc_complete, dxfer, xnext); 361 /* XXXNH Already done - can I assert this? */ 362 callout_stop(&dxfer->xfer.timeout_handle); 363 364 mutex_spin_exit(&hsotg->lock); 365 usb_transfer_complete(&dxfer->xfer); 366 mutex_spin_enter(&hsotg->lock); 367 } 368 mutex_spin_exit(&hsotg->lock); 369 } 370 371 Static void 372 dwc2_waitintr(struct dwc2_softc *sc, usbd_xfer_handle xfer) 373 { 374 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 375 uint32_t intrs; 376 int timo; 377 378 xfer->status = USBD_IN_PROGRESS; 379 for (timo = xfer->timeout; timo >= 0; timo--) { 380 usb_delay_ms(&sc->sc_bus, 1); 381 if (sc->sc_dying) 382 break; 383 intrs = dwc2_read_core_intr(hsotg); 384 385 DPRINTFN(15, "0x%08x\n", intrs); 386 387 if (intrs) { 388 mutex_spin_enter(&hsotg->lock); 389 dwc2_interrupt(sc); 390 mutex_spin_exit(&hsotg->lock); 391 if (xfer->status != USBD_IN_PROGRESS) 392 return; 393 } 394 } 395 396 /* Timeout */ 397 DPRINTF("timeout\n"); 398 399 mutex_enter(&sc->sc_lock); 400 xfer->status = USBD_TIMEOUT; 401 usb_transfer_complete(xfer); 402 mutex_exit(&sc->sc_lock); 403 } 404 405 Static void 406 dwc2_timeout(void *addr) 407 { 408 usbd_xfer_handle xfer = addr; 409 struct dwc2_xfer *dxfer = DWC2_XFER2DXFER(xfer); 410 // struct dwc2_pipe *dpipe = DWC2_XFER2DPIPE(xfer); 411 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 412 413 DPRINTF("dxfer=%p\n", dxfer); 414 415 if (sc->sc_dying) { 416 mutex_enter(&sc->sc_lock); 417 dwc2_abort_xfer(&dxfer->xfer, USBD_TIMEOUT); 418 mutex_exit(&sc->sc_lock); 419 return; 420 } 421 422 /* Execute the abort in a process context. */ 423 usb_init_task(&dxfer->abort_task, dwc2_timeout_task, addr, 424 USB_TASKQ_MPSAFE); 425 usb_add_task(dxfer->xfer.pipe->device, &dxfer->abort_task, 426 USB_TASKQ_HC); 427 } 428 429 Static void 430 dwc2_timeout_task(void *addr) 431 { 432 usbd_xfer_handle xfer = addr; 433 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 434 435 DPRINTF("xfer=%p\n", xfer); 436 437 mutex_enter(&sc->sc_lock); 438 dwc2_abort_xfer(xfer, USBD_TIMEOUT); 439 mutex_exit(&sc->sc_lock); 440 } 441 442 usbd_status 443 dwc2_open(usbd_pipe_handle pipe) 444 { 445 usbd_device_handle dev = pipe->device; 446 struct dwc2_softc *sc = DWC2_PIPE2SC(pipe); 447 struct dwc2_pipe *dpipe = DWC2_PIPE2DPIPE(pipe); 448 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 449 uint8_t addr = dev->address; 450 uint8_t xfertype = UE_GET_XFERTYPE(ed->bmAttributes); 451 usbd_status err; 452 453 DPRINTF("pipe %p addr %d xfertype %d dir %s\n", pipe, addr, xfertype, 454 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in" : "out"); 455 456 if (sc->sc_dying) { 457 return USBD_IOERROR; 458 } 459 460 if (addr == sc->sc_addr) { 461 switch (ed->bEndpointAddress) { 462 case USB_CONTROL_ENDPOINT: 463 pipe->methods = &dwc2_root_ctrl_methods; 464 break; 465 case UE_DIR_IN | DWC2_INTR_ENDPT: 466 pipe->methods = &dwc2_root_intr_methods; 467 break; 468 default: 469 DPRINTF("bad bEndpointAddress 0x%02x\n", 470 ed->bEndpointAddress); 471 return USBD_INVAL; 472 } 473 DPRINTF("root hub pipe open\n"); 474 return USBD_NORMAL_COMPLETION; 475 } 476 477 switch (xfertype) { 478 case UE_CONTROL: 479 pipe->methods = &dwc2_device_ctrl_methods; 480 err = usb_allocmem(&sc->sc_bus, sizeof(usb_device_request_t), 481 0, &dpipe->req_dma); 482 if (err) 483 return err; 484 break; 485 case UE_INTERRUPT: 486 pipe->methods = &dwc2_device_intr_methods; 487 break; 488 case UE_ISOCHRONOUS: 489 pipe->methods = &dwc2_device_isoc_methods; 490 break; 491 case UE_BULK: 492 pipe->methods = &dwc2_device_bulk_methods; 493 break; 494 default: 495 DPRINTF("bad xfer type %d\n", xfertype); 496 return USBD_INVAL; 497 } 498 499 dpipe->priv = NULL; /* QH */ 500 dpipe->xfer = NULL; /* dwc2_urb */ 501 502 return USBD_NORMAL_COMPLETION; 503 } 504 505 Static void 506 dwc2_poll(struct usbd_bus *bus) 507 { 508 struct dwc2_softc *sc = DWC2_BUS2SC(bus); 509 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 510 511 mutex_spin_enter(&hsotg->lock); 512 dwc2_interrupt(sc); 513 mutex_spin_exit(&hsotg->lock); 514 } 515 516 /* 517 * Close a reqular pipe. 518 * Assumes that there are no pending transactions. 519 */ 520 Static void 521 dwc2_close_pipe(usbd_pipe_handle pipe) 522 { 523 struct dwc2_pipe *dpipe = (struct dwc2_pipe *)pipe; 524 struct dwc2_softc *sc = pipe->device->bus->hci_private; 525 526 dpipe = dpipe; 527 528 KASSERT(mutex_owned(&sc->sc_lock)); 529 } 530 531 /* 532 * Abort a device request. 533 */ 534 Static void 535 dwc2_abort_xfer(usbd_xfer_handle xfer, usbd_status status) 536 { 537 struct dwc2_xfer *dxfer = DWC2_XFER2DXFER(xfer); 538 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 539 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 540 struct dwc2_xfer *d, *tmp; 541 bool wake; 542 int err; 543 544 DPRINTF("xfer=%p\n", xfer); 545 546 KASSERT(mutex_owned(&sc->sc_lock)); 547 KASSERT(!cpu_intr_p() && !cpu_softintr_p()); 548 549 if (sc->sc_dying) { 550 xfer->status = status; 551 callout_stop(&xfer->timeout_handle); 552 usb_transfer_complete(xfer); 553 return; 554 } 555 556 /* 557 * If an abort is already in progress then just wait for it to 558 * complete and return. 559 */ 560 if (xfer->hcflags & UXFER_ABORTING) { 561 xfer->status = status; 562 xfer->hcflags |= UXFER_ABORTWAIT; 563 while (xfer->hcflags & UXFER_ABORTING) 564 cv_wait(&xfer->hccv, &sc->sc_lock); 565 return; 566 } 567 568 /* 569 * Step 1: Make the stack ignore it and stop the callout. 570 */ 571 mutex_spin_enter(&hsotg->lock); 572 xfer->hcflags |= UXFER_ABORTING; 573 574 xfer->status = status; /* make software ignore it */ 575 callout_stop(&xfer->timeout_handle); 576 577 /* XXXNH suboptimal */ 578 TAILQ_FOREACH_SAFE(d, &sc->sc_complete, xnext, tmp) { 579 if (d == dxfer) { 580 TAILQ_REMOVE(&sc->sc_complete, dxfer, xnext); 581 } 582 } 583 584 err = dwc2_hcd_urb_dequeue(hsotg, dxfer->urb); 585 if (err) { 586 DPRINTF("dwc2_hcd_urb_dequeue failed\n"); 587 } 588 589 mutex_spin_exit(&hsotg->lock); 590 591 /* 592 * Step 2: Execute callback. 593 */ 594 wake = xfer->hcflags & UXFER_ABORTWAIT; 595 xfer->hcflags &= ~(UXFER_ABORTING | UXFER_ABORTWAIT); 596 597 usb_transfer_complete(xfer); 598 if (wake) { 599 cv_broadcast(&xfer->hccv); 600 } 601 } 602 603 Static void 604 dwc2_noop(usbd_pipe_handle pipe) 605 { 606 607 } 608 609 Static void 610 dwc2_device_clear_toggle(usbd_pipe_handle pipe) 611 { 612 613 DPRINTF("toggle %d -> 0", pipe->endpoint->datatoggle); 614 } 615 616 /***********************************************************************/ 617 618 /* 619 * Data structures and routines to emulate the root hub. 620 */ 621 622 Static const usb_device_descriptor_t dwc2_devd = { 623 .bLength = sizeof(usb_device_descriptor_t), 624 .bDescriptorType = UDESC_DEVICE, 625 .bcdUSB = {0x00, 0x02}, 626 .bDeviceClass = UDCLASS_HUB, 627 .bDeviceSubClass = UDSUBCLASS_HUB, 628 .bDeviceProtocol = UDPROTO_HSHUBSTT, 629 .bMaxPacketSize = 64, 630 .bcdDevice = {0x00, 0x01}, 631 .iManufacturer = 1, 632 .iProduct = 2, 633 .bNumConfigurations = 1, 634 }; 635 636 struct dwc2_config_desc { 637 usb_config_descriptor_t confd; 638 usb_interface_descriptor_t ifcd; 639 usb_endpoint_descriptor_t endpd; 640 } __packed; 641 642 Static const struct dwc2_config_desc dwc2_confd = { 643 .confd = { 644 .bLength = USB_CONFIG_DESCRIPTOR_SIZE, 645 .bDescriptorType = UDESC_CONFIG, 646 .wTotalLength[0] = sizeof(dwc2_confd), 647 .bNumInterface = 1, 648 .bConfigurationValue = 1, 649 .iConfiguration = 0, 650 .bmAttributes = UC_SELF_POWERED, 651 .bMaxPower = 0, 652 }, 653 .ifcd = { 654 .bLength = USB_INTERFACE_DESCRIPTOR_SIZE, 655 .bDescriptorType = UDESC_INTERFACE, 656 .bInterfaceNumber = 0, 657 .bAlternateSetting = 0, 658 .bNumEndpoints = 1, 659 .bInterfaceClass = UICLASS_HUB, 660 .bInterfaceSubClass = UISUBCLASS_HUB, 661 .bInterfaceProtocol = UIPROTO_HSHUBSTT, 662 .iInterface = 0 663 }, 664 .endpd = { 665 .bLength = USB_ENDPOINT_DESCRIPTOR_SIZE, 666 .bDescriptorType = UDESC_ENDPOINT, 667 .bEndpointAddress = UE_DIR_IN | DWC2_INTR_ENDPT, 668 .bmAttributes = UE_INTERRUPT, 669 .wMaxPacketSize = {8, 0}, /* max packet */ 670 .bInterval = 255, 671 }, 672 }; 673 674 #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) } 675 Static const usb_hub_descriptor_t dwc2_hubd = { 676 .bDescLength = USB_HUB_DESCRIPTOR_SIZE, 677 .bDescriptorType = UDESC_HUB, 678 .bNbrPorts = 1, 679 HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)), 680 .bPwrOn2PwrGood = 50, 681 .bHubContrCurrent = 0, 682 .DeviceRemovable = {0}, /* port is removable */ 683 }; 684 685 Static usbd_status 686 dwc2_root_ctrl_transfer(usbd_xfer_handle xfer) 687 { 688 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 689 usbd_status err; 690 691 mutex_enter(&sc->sc_lock); 692 err = usb_insert_transfer(xfer); 693 mutex_exit(&sc->sc_lock); 694 if (err) 695 return err; 696 697 return dwc2_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 698 } 699 700 Static usbd_status 701 dwc2_root_ctrl_start(usbd_xfer_handle xfer) 702 { 703 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 704 usb_device_request_t *req; 705 uint8_t *buf; 706 uint16_t len; 707 int value, index, l, totlen; 708 usbd_status err = USBD_IOERROR; 709 710 if (sc->sc_dying) 711 return USBD_IOERROR; 712 713 req = &xfer->request; 714 715 DPRINTFN(4, "type=0x%02x request=%02x\n", 716 req->bmRequestType, req->bRequest); 717 718 len = UGETW(req->wLength); 719 value = UGETW(req->wValue); 720 index = UGETW(req->wIndex); 721 722 buf = len ? KERNADDR(&xfer->dmabuf, 0) : NULL; 723 724 totlen = 0; 725 726 #define C(x,y) ((x) | ((y) << 8)) 727 switch (C(req->bRequest, req->bmRequestType)) { 728 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 729 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 730 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 731 /* 732 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 733 * for the integrated root hub. 734 */ 735 break; 736 case C(UR_GET_CONFIG, UT_READ_DEVICE): 737 if (len > 0) { 738 *buf = sc->sc_conf; 739 totlen = 1; 740 } 741 break; 742 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 743 DPRINTFN(8, "wValue=0x%04x\n", value); 744 745 if (len == 0) 746 break; 747 switch (value) { 748 case C(0, UDESC_DEVICE): 749 l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 750 // USETW(dwc2_devd.idVendor, sc->sc_id_vendor); 751 memcpy(buf, &dwc2_devd, l); 752 buf += l; 753 len -= l; 754 totlen += l; 755 756 break; 757 case C(0, UDESC_CONFIG): 758 l = min(len, sizeof(dwc2_confd)); 759 memcpy(buf, &dwc2_confd, l); 760 buf += l; 761 len -= l; 762 totlen += l; 763 764 break; 765 #define sd ((usb_string_descriptor_t *)buf) 766 case C(0, UDESC_STRING): 767 totlen = usb_makelangtbl(sd, len); 768 break; 769 case C(1, UDESC_STRING): 770 totlen = usb_makestrdesc(sd, len, sc->sc_vendor); 771 break; 772 case C(2, UDESC_STRING): 773 totlen = usb_makestrdesc(sd, len, "DWC2 root hub"); 774 break; 775 #undef sd 776 default: 777 goto fail; 778 } 779 break; 780 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 781 if (len > 0) { 782 *buf = 0; 783 totlen = 1; 784 } 785 break; 786 case C(UR_GET_STATUS, UT_READ_DEVICE): 787 if (len > 1) { 788 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 789 totlen = 2; 790 } 791 break; 792 case C(UR_GET_STATUS, UT_READ_INTERFACE): 793 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 794 if (len > 1) { 795 USETW(((usb_status_t *)buf)->wStatus, 0); 796 totlen = 2; 797 } 798 break; 799 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 800 DPRINTF("UR_SET_ADDRESS, UT_WRITE_DEVICE: addr %d\n", 801 value); 802 if (value >= USB_MAX_DEVICES) 803 goto fail; 804 805 sc->sc_addr = value; 806 break; 807 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 808 if (value != 0 && value != 1) 809 goto fail; 810 811 sc->sc_conf = value; 812 break; 813 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 814 break; 815 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 816 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 817 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 818 err = USBD_IOERROR; 819 goto fail; 820 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 821 break; 822 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 823 break; 824 default: 825 /* Hub requests - XXXNH len check? */ 826 err = dwc2_hcd_hub_control(sc->sc_hsotg, 827 C(req->bRequest, req->bmRequestType), value, index, 828 buf, len); 829 if (err) { 830 err = USBD_IOERROR; 831 goto fail; 832 } 833 totlen = len; 834 } 835 xfer->actlen = totlen; 836 err = USBD_NORMAL_COMPLETION; 837 838 fail: 839 mutex_enter(&sc->sc_lock); 840 xfer->status = err; 841 usb_transfer_complete(xfer); 842 mutex_exit(&sc->sc_lock); 843 844 return USBD_IN_PROGRESS; 845 } 846 847 Static void 848 dwc2_root_ctrl_abort(usbd_xfer_handle xfer) 849 { 850 DPRINTFN(10, "\n"); 851 852 /* Nothing to do, all transfers are synchronous. */ 853 } 854 855 Static void 856 dwc2_root_ctrl_close(usbd_pipe_handle pipe) 857 { 858 DPRINTFN(10, "\n"); 859 860 /* Nothing to do. */ 861 } 862 863 Static void 864 dwc2_root_ctrl_done(usbd_xfer_handle xfer) 865 { 866 DPRINTFN(10, "\n"); 867 868 /* Nothing to do. */ 869 } 870 871 Static usbd_status 872 dwc2_root_intr_transfer(usbd_xfer_handle xfer) 873 { 874 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 875 usbd_status err; 876 877 DPRINTF("\n"); 878 879 /* Insert last in queue. */ 880 mutex_enter(&sc->sc_lock); 881 err = usb_insert_transfer(xfer); 882 mutex_exit(&sc->sc_lock); 883 if (err) 884 return err; 885 886 /* Pipe isn't running, start first */ 887 return dwc2_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 888 } 889 890 Static usbd_status 891 dwc2_root_intr_start(usbd_xfer_handle xfer) 892 { 893 struct dwc2_softc *sc = DWC2_PIPE2SC(xfer); 894 895 DPRINTF("\n"); 896 897 if (sc->sc_dying) 898 return USBD_IOERROR; 899 900 mutex_enter(&sc->sc_lock); 901 KASSERT(sc->sc_intrxfer == NULL); 902 sc->sc_intrxfer = xfer; 903 mutex_exit(&sc->sc_lock); 904 905 return USBD_IN_PROGRESS; 906 } 907 908 /* Abort a root interrupt request. */ 909 Static void 910 dwc2_root_intr_abort(usbd_xfer_handle xfer) 911 { 912 #ifdef DIAGNOSTIC 913 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 914 #endif 915 DPRINTF("xfer=%p\n", xfer); 916 917 KASSERT(mutex_owned(&sc->sc_lock)); 918 919 if (xfer->pipe->intrxfer == xfer) { 920 DPRINTF("remove\n"); 921 xfer->pipe->intrxfer = NULL; 922 } 923 xfer->status = USBD_CANCELLED; 924 usb_transfer_complete(xfer); 925 } 926 927 Static void 928 dwc2_root_intr_close(usbd_pipe_handle pipe) 929 { 930 struct dwc2_softc *sc = DWC2_PIPE2SC(pipe); 931 932 DPRINTF("\n"); 933 934 KASSERT(mutex_owned(&sc->sc_lock)); 935 936 sc->sc_intrxfer = NULL; 937 } 938 939 Static void 940 dwc2_root_intr_done(usbd_xfer_handle xfer) 941 { 942 943 DPRINTF("\n"); 944 } 945 946 /***********************************************************************/ 947 948 Static usbd_status 949 dwc2_device_ctrl_transfer(usbd_xfer_handle xfer) 950 { 951 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 952 usbd_status err; 953 954 DPRINTF("\n"); 955 956 /* Insert last in queue. */ 957 mutex_enter(&sc->sc_lock); 958 err = usb_insert_transfer(xfer); 959 mutex_exit(&sc->sc_lock); 960 if (err) 961 return err; 962 963 /* Pipe isn't running, start first */ 964 return dwc2_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 965 } 966 967 Static usbd_status 968 dwc2_device_ctrl_start(usbd_xfer_handle xfer) 969 { 970 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 971 972 DPRINTF("\n"); 973 974 mutex_enter(&sc->sc_lock); 975 xfer->status = USBD_IN_PROGRESS; 976 dwc2_device_start(xfer); 977 mutex_exit(&sc->sc_lock); 978 979 if (sc->sc_bus.use_polling) 980 dwc2_waitintr(sc, xfer); 981 982 return USBD_IN_PROGRESS; 983 } 984 985 Static void 986 dwc2_device_ctrl_abort(usbd_xfer_handle xfer) 987 { 988 #ifdef DIAGNOSTIC 989 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 990 #endif 991 KASSERT(mutex_owned(&sc->sc_lock)); 992 993 DPRINTF("xfer=%p\n", xfer); 994 dwc2_abort_xfer(xfer, USBD_CANCELLED); 995 } 996 997 Static void 998 dwc2_device_ctrl_close(usbd_pipe_handle pipe) 999 { 1000 1001 DPRINTF("pipe=%p\n", pipe); 1002 dwc2_close_pipe(pipe); 1003 } 1004 1005 Static void 1006 dwc2_device_ctrl_done(usbd_xfer_handle xfer) 1007 { 1008 1009 DPRINTF("xfer=%p\n", xfer); 1010 } 1011 1012 /***********************************************************************/ 1013 1014 Static usbd_status 1015 dwc2_device_bulk_transfer(usbd_xfer_handle xfer) 1016 { 1017 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1018 usbd_status err; 1019 1020 DPRINTF("xfer=%p\n", xfer); 1021 1022 /* Insert last in queue. */ 1023 mutex_enter(&sc->sc_lock); 1024 err = usb_insert_transfer(xfer); 1025 mutex_exit(&sc->sc_lock); 1026 if (err) 1027 return err; 1028 1029 /* Pipe isn't running, start first */ 1030 return dwc2_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1031 } 1032 1033 Static usbd_status 1034 dwc2_device_bulk_start(usbd_xfer_handle xfer) 1035 { 1036 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1037 1038 DPRINTF("xfer=%p\n", xfer); 1039 mutex_enter(&sc->sc_lock); 1040 xfer->status = USBD_IN_PROGRESS; 1041 dwc2_device_start(xfer); 1042 mutex_exit(&sc->sc_lock); 1043 1044 return USBD_IN_PROGRESS; 1045 } 1046 1047 Static void 1048 dwc2_device_bulk_abort(usbd_xfer_handle xfer) 1049 { 1050 #ifdef DIAGNOSTIC 1051 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1052 #endif 1053 KASSERT(mutex_owned(&sc->sc_lock)); 1054 1055 DPRINTF("xfer=%p\n", xfer); 1056 dwc2_abort_xfer(xfer, USBD_CANCELLED); 1057 } 1058 1059 Static void 1060 dwc2_device_bulk_close(usbd_pipe_handle pipe) 1061 { 1062 1063 DPRINTF("pipe=%p\n", pipe); 1064 1065 dwc2_close_pipe(pipe); 1066 } 1067 1068 Static void 1069 dwc2_device_bulk_done(usbd_xfer_handle xfer) 1070 { 1071 1072 DPRINTF("xfer=%p\n", xfer); 1073 } 1074 1075 /***********************************************************************/ 1076 1077 Static usbd_status 1078 dwc2_device_intr_transfer(usbd_xfer_handle xfer) 1079 { 1080 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1081 usbd_status err; 1082 1083 DPRINTF("xfer=%p\n", xfer); 1084 1085 /* Insert last in queue. */ 1086 mutex_enter(&sc->sc_lock); 1087 err = usb_insert_transfer(xfer); 1088 mutex_exit(&sc->sc_lock); 1089 if (err) 1090 return err; 1091 1092 /* Pipe isn't running, start first */ 1093 return dwc2_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1094 } 1095 1096 Static usbd_status 1097 dwc2_device_intr_start(usbd_xfer_handle xfer) 1098 { 1099 struct dwc2_pipe *dpipe = (struct dwc2_pipe *)xfer->pipe; 1100 usbd_device_handle dev = dpipe->pipe.device; 1101 struct dwc2_softc *sc = dev->bus->hci_private; 1102 1103 mutex_enter(&sc->sc_lock); 1104 xfer->status = USBD_IN_PROGRESS; 1105 dwc2_device_start(xfer); 1106 mutex_exit(&sc->sc_lock); 1107 1108 if (sc->sc_bus.use_polling) 1109 dwc2_waitintr(sc, xfer); 1110 1111 return USBD_IN_PROGRESS; 1112 } 1113 1114 /* Abort a device interrupt request. */ 1115 Static void 1116 dwc2_device_intr_abort(usbd_xfer_handle xfer) 1117 { 1118 #ifdef DIAGNOSTIC 1119 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1120 #endif 1121 1122 KASSERT(mutex_owned(&sc->sc_lock)); 1123 1124 if (xfer->pipe->intrxfer == xfer) { 1125 DPRINTF("remove\n"); 1126 xfer->pipe->intrxfer = NULL; 1127 } 1128 DPRINTF("xfer=%p\n", xfer); 1129 dwc2_abort_xfer(xfer, USBD_CANCELLED); 1130 } 1131 1132 Static void 1133 dwc2_device_intr_close(usbd_pipe_handle pipe) 1134 { 1135 1136 DPRINTF("pipe=%p\n", pipe); 1137 1138 dwc2_close_pipe(pipe); 1139 } 1140 1141 Static void 1142 dwc2_device_intr_done(usbd_xfer_handle xfer) 1143 { 1144 1145 DPRINTF("\n"); 1146 1147 if (xfer->pipe->repeat) { 1148 xfer->status = USBD_IN_PROGRESS; 1149 dwc2_device_start(xfer); 1150 } 1151 } 1152 1153 /***********************************************************************/ 1154 1155 usbd_status 1156 dwc2_device_isoc_transfer(usbd_xfer_handle xfer) 1157 { 1158 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1159 usbd_status err; 1160 1161 DPRINTF("xfer=%p\n", xfer); 1162 1163 /* Insert last in queue. */ 1164 mutex_enter(&sc->sc_lock); 1165 err = usb_insert_transfer(xfer); 1166 mutex_exit(&sc->sc_lock); 1167 if (err) 1168 return err; 1169 1170 /* Pipe isn't running, start first */ 1171 return dwc2_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1172 } 1173 1174 usbd_status 1175 dwc2_device_isoc_start(usbd_xfer_handle xfer) 1176 { 1177 struct dwc2_pipe *dpipe = (struct dwc2_pipe *)xfer->pipe; 1178 usbd_device_handle dev = dpipe->pipe.device; 1179 struct dwc2_softc *sc = dev->bus->hci_private; 1180 1181 mutex_enter(&sc->sc_lock); 1182 xfer->status = USBD_IN_PROGRESS; 1183 dwc2_device_start(xfer); 1184 mutex_exit(&sc->sc_lock); 1185 1186 if (sc->sc_bus.use_polling) 1187 dwc2_waitintr(sc, xfer); 1188 1189 return USBD_IN_PROGRESS; 1190 } 1191 1192 void 1193 dwc2_device_isoc_abort(usbd_xfer_handle xfer) 1194 { 1195 #ifdef DIAGNOSTIC 1196 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1197 #endif 1198 KASSERT(mutex_owned(&sc->sc_lock)); 1199 1200 DPRINTF("xfer=%p\n", xfer); 1201 dwc2_abort_xfer(xfer, USBD_CANCELLED); 1202 } 1203 1204 void 1205 dwc2_device_isoc_close(usbd_pipe_handle pipe) 1206 { 1207 DPRINTF("\n"); 1208 1209 dwc2_close_pipe(pipe); 1210 } 1211 1212 void 1213 dwc2_device_isoc_done(usbd_xfer_handle xfer) 1214 { 1215 1216 DPRINTF("\n"); 1217 } 1218 1219 1220 usbd_status 1221 dwc2_device_start(usbd_xfer_handle xfer) 1222 { 1223 struct dwc2_xfer *dxfer = DWC2_XFER2DXFER(xfer); 1224 struct dwc2_pipe *dpipe = DWC2_XFER2DPIPE(xfer); 1225 struct dwc2_softc *sc = DWC2_XFER2SC(xfer); 1226 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 1227 struct dwc2_hcd_urb *dwc2_urb; 1228 1229 usbd_device_handle dev = xfer->pipe->device; 1230 usb_endpoint_descriptor_t *ed = xfer->pipe->endpoint->edesc; 1231 uint8_t addr = dev->address; 1232 uint8_t xfertype = UE_GET_XFERTYPE(ed->bmAttributes); 1233 uint8_t epnum = UE_GET_ADDR(ed->bEndpointAddress); 1234 uint8_t dir = UE_GET_DIR(ed->bEndpointAddress); 1235 uint16_t mps = UE_GET_SIZE(UGETW(ed->wMaxPacketSize)); 1236 uint32_t len; 1237 1238 uint32_t flags = 0; 1239 uint32_t off = 0; 1240 int retval, err = USBD_IN_PROGRESS; 1241 int alloc_bandwidth = 0; 1242 int i; 1243 1244 DPRINTFN(1, "xfer=%p pipe=%p\n", xfer, xfer->pipe); 1245 1246 if (xfertype == UE_ISOCHRONOUS || 1247 xfertype == UE_INTERRUPT) { 1248 mutex_spin_enter(&hsotg->lock); 1249 if (!dwc2_hcd_is_bandwidth_allocated(hsotg, xfer)) 1250 alloc_bandwidth = 1; 1251 mutex_spin_exit(&hsotg->lock); 1252 } 1253 1254 /* 1255 * For Control pipe the direction is from the request, all other 1256 * transfers have been set correctly at pipe open time. 1257 */ 1258 if (xfertype == UE_CONTROL) { 1259 usb_device_request_t *req = &xfer->request; 1260 1261 DPRINTFN(3, "xfer=%p type=0x%02x request=0x%02x wValue=0x%04x " 1262 "wIndex=0x%04x len=%d addr=%d endpt=%d dir=%s speed=%d " 1263 "mps=%d\n", 1264 xfer, req->bmRequestType, req->bRequest, UGETW(req->wValue), 1265 UGETW(req->wIndex), UGETW(req->wLength), dev->address, 1266 epnum, dir == UT_READ ? "in" :"out", dev->speed, mps); 1267 1268 /* Copy request packet to our DMA buffer */ 1269 memcpy(KERNADDR(&dpipe->req_dma, 0), req, sizeof(*req)); 1270 usb_syncmem(&dpipe->req_dma, 0, sizeof(*req), 1271 BUS_DMASYNC_PREWRITE); 1272 len = UGETW(req->wLength); 1273 if ((req->bmRequestType & UT_READ) == UT_READ) { 1274 dir = UE_DIR_IN; 1275 } else { 1276 dir = UE_DIR_OUT; 1277 } 1278 1279 DPRINTFN(3, "req = %p dma = %lx len %d dir %s\n", 1280 KERNADDR(&dpipe->req_dma, 0), DMAADDR(&dpipe->req_dma, 0), 1281 len, dir == UE_DIR_IN ? "in" : "out"); 1282 } else { 1283 DPRINTFN(3, "xfer=%p len=%d flags=%d addr=%d endpt=%d," 1284 " mps=%d dir %s\n", xfer, xfer->length, xfer->flags, addr, 1285 epnum, mps, dir == UT_READ ? "in" :"out"); 1286 1287 len = xfer->length; 1288 } 1289 1290 dwc2_urb = dxfer->urb; 1291 if (!dwc2_urb) 1292 return USBD_NOMEM; 1293 1294 memset(dwc2_urb, 0, sizeof(*dwc2_urb)); 1295 1296 dwc2_urb->priv = xfer; 1297 dwc2_hcd_urb_set_pipeinfo(hsotg, dwc2_urb, addr, epnum, xfertype, dir, 1298 mps); 1299 1300 if (xfertype == UE_CONTROL) { 1301 dwc2_urb->setup_usbdma = &dpipe->req_dma; 1302 dwc2_urb->setup_packet = KERNADDR(&dpipe->req_dma, 0); 1303 dwc2_urb->setup_dma = DMAADDR(&dpipe->req_dma, 0); 1304 } else { 1305 /* XXXNH - % mps required? */ 1306 if ((xfer->flags & USBD_FORCE_SHORT_XFER) && (len % mps) == 0) 1307 flags |= URB_SEND_ZERO_PACKET; 1308 } 1309 flags |= URB_GIVEBACK_ASAP; 1310 1311 /* XXXNH this shouldn't be required */ 1312 if (xfertype == UE_CONTROL && len == 0) { 1313 KASSERT(xfertype == UE_CONTROL); 1314 dwc2_urb->usbdma = &dpipe->req_dma; 1315 } else { 1316 KASSERT(xfertype != UE_CONTROL || len != 0); 1317 dwc2_urb->usbdma = &xfer->dmabuf; 1318 } 1319 dwc2_urb->buf = KERNADDR(dwc2_urb->usbdma, 0); 1320 dwc2_urb->dma = DMAADDR(dwc2_urb->usbdma, 0); 1321 dwc2_urb->length = len; 1322 dwc2_urb->flags = flags; 1323 dwc2_urb->status = -EINPROGRESS; 1324 dwc2_urb->packet_count = xfer->nframes; 1325 1326 if (xfertype == UE_INTERRUPT) 1327 dwc2_urb->interval = dpipe->pipe.interval; 1328 else if (xfertype == UE_ISOCHRONOUS) 1329 dwc2_urb->interval = dpipe->pipe.endpoint->edesc->bInterval; 1330 1331 /* XXXNH bring down from callers?? */ 1332 // mutex_enter(&sc->sc_lock); 1333 1334 xfer->actlen = 0; 1335 1336 KASSERT(xfertype != UE_ISOCHRONOUS || 1337 xfer->nframes < DWC2_MAXISOCPACKETS); 1338 KASSERTMSG(xfer->nframes == 0 || xfertype == UE_ISOCHRONOUS, 1339 "nframes %d xfertype %d\n", xfer->nframes, xfertype); 1340 1341 for (off = i = 0; i < xfer->nframes; ++i) { 1342 DPRINTFN(3, "xfer=%p frame=%d offset=%d length=%d\n", xfer, i, 1343 off, xfer->frlengths[i]); 1344 1345 dwc2_hcd_urb_set_iso_desc_params(dwc2_urb, i, off, 1346 xfer->frlengths[i]); 1347 off += xfer->frlengths[i]; 1348 } 1349 1350 /* might need to check cpu_intr_p */ 1351 retval = dwc2_hcd_urb_enqueue(hsotg, dwc2_urb, &dpipe->priv, 0); 1352 if (retval) 1353 goto fail2; 1354 1355 if (xfer->timeout && !sc->sc_bus.use_polling) { 1356 callout_reset(&xfer->timeout_handle, mstohz(xfer->timeout), 1357 dwc2_timeout, xfer); 1358 } 1359 1360 if (alloc_bandwidth) { 1361 mutex_spin_enter(&hsotg->lock); 1362 dwc2_allocate_bus_bandwidth(hsotg, 1363 dwc2_hcd_get_ep_bandwidth(hsotg, dpipe), 1364 xfer); 1365 mutex_spin_exit(&hsotg->lock); 1366 } 1367 1368 fail2: 1369 // mutex_exit(&sc->sc_lock); 1370 1371 switch (retval) { 1372 case 0: 1373 break; 1374 case -ENODEV: 1375 err = USBD_NOMEM; 1376 break; 1377 case -ENOMEM: 1378 err = USBD_NOMEM; 1379 break; 1380 default: 1381 err = USBD_IOERROR; 1382 } 1383 1384 // fail1: 1385 if (err) { 1386 dpipe->xfer = NULL; 1387 } 1388 1389 return err; 1390 1391 } 1392 1393 void 1394 dwc2_worker(struct work *wk, void *priv) 1395 { 1396 struct dwc2_softc *sc = priv; 1397 struct dwc2_hsotg *hsotg = sc->sc_hsotg; 1398 1399 Debugger(); 1400 #if 0 1401 usbd_xfer_handle xfer = dwork->xfer; 1402 struct dwc2_xfer *dxfer = DWC2_XFER2DXFER(xfer); 1403 1404 dwc2_hcd_endpoint_disable(sc->dwc_dev.hcd, dpipe->priv, 250); 1405 dwc_free(NULL, dpipe->urb); 1406 #endif 1407 1408 mutex_enter(&sc->sc_lock); 1409 if (wk == &hsotg->wf_otg) { 1410 dwc2_conn_id_status_change(wk); 1411 } else if (wk == &hsotg->start_work.work) { 1412 dwc2_hcd_start_func(wk); 1413 } else if (wk == &hsotg->reset_work.work) { 1414 dwc2_hcd_reset_func(wk); 1415 } else { 1416 #if 0 1417 KASSERT(dwork->xfer != NULL); 1418 KASSERT(dxfer->queued == true); 1419 1420 if (!(xfer->hcflags & UXFER_ABORTING)) { 1421 dwc2_start_standard_chain(xfer); 1422 } 1423 dxfer->queued = false; 1424 cv_broadcast(&xfer->hccv); 1425 #endif 1426 } 1427 mutex_exit(&sc->sc_lock); 1428 } 1429 1430 int dwc2_intr(void *p) 1431 { 1432 struct dwc2_softc *sc = p; 1433 struct dwc2_hsotg *hsotg; 1434 int ret = 0; 1435 1436 if (sc == NULL) 1437 return 0; 1438 1439 hsotg = sc->sc_hsotg; 1440 mutex_spin_enter(&hsotg->lock); 1441 1442 if (sc->sc_dying || !device_has_power(sc->sc_dev)) 1443 goto done; 1444 1445 if (sc->sc_bus.use_polling) { 1446 uint32_t intrs; 1447 1448 intrs = dwc2_read_core_intr(hsotg); 1449 DWC2_WRITE_4(hsotg, GINTSTS, intrs); 1450 } else { 1451 ret = dwc2_interrupt(sc); 1452 } 1453 1454 done: 1455 mutex_spin_exit(&hsotg->lock); 1456 1457 return ret; 1458 } 1459 1460 int 1461 dwc2_interrupt(struct dwc2_softc *sc) 1462 { 1463 int ret = 0; 1464 1465 if (sc->sc_hcdenabled) { 1466 ret |= dwc2_handle_hcd_intr(sc->sc_hsotg); 1467 } 1468 1469 ret |= dwc2_handle_common_intr(sc->sc_hsotg); 1470 1471 return ret; 1472 } 1473 1474 /***********************************************************************/ 1475 1476 int 1477 dwc2_detach(struct dwc2_softc *sc, int flags) 1478 { 1479 int rv = 0; 1480 1481 if (sc->sc_child != NULL) 1482 rv = config_detach(sc->sc_child, flags); 1483 1484 return rv; 1485 } 1486 1487 bool 1488 dwc2_shutdown(device_t self, int flags) 1489 { 1490 struct dwc2_softc *sc = device_private(self); 1491 1492 sc = sc; 1493 1494 return true; 1495 } 1496 1497 void 1498 dwc2_childdet(device_t self, device_t child) 1499 { 1500 struct dwc2_softc *sc = device_private(self); 1501 1502 sc = sc; 1503 } 1504 1505 int 1506 dwc2_activate(device_t self, enum devact act) 1507 { 1508 struct dwc2_softc *sc = device_private(self); 1509 1510 sc = sc; 1511 1512 return 0; 1513 } 1514 1515 bool 1516 dwc2_resume(device_t dv, const pmf_qual_t *qual) 1517 { 1518 struct dwc2_softc *sc = device_private(dv); 1519 1520 sc = sc; 1521 1522 return true; 1523 } 1524 1525 bool 1526 dwc2_suspend(device_t dv, const pmf_qual_t *qual) 1527 { 1528 struct dwc2_softc *sc = device_private(dv); 1529 1530 sc = sc; 1531 1532 return true; 1533 } 1534 1535 /***********************************************************************/ 1536 Static int 1537 dwc2_init(struct dwc2_softc *sc) 1538 { 1539 int err = 0; 1540 1541 sc->sc_bus.hci_private = sc; 1542 sc->sc_bus.usbrev = USBREV_2_0; 1543 sc->sc_bus.methods = &dwc2_bus_methods; 1544 sc->sc_bus.pipe_size = sizeof(struct dwc2_pipe); 1545 sc->sc_hcdenabled = false; 1546 1547 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 1548 1549 TAILQ_INIT(&sc->sc_complete); 1550 1551 sc->sc_rhc_si = softint_establish(SOFTINT_NET | SOFTINT_MPSAFE, 1552 dwc2_rhc, sc); 1553 1554 usb_setup_reserve(sc->sc_dev, &sc->sc_dma_reserve, sc->sc_bus.dmatag, 1555 USB_MEM_RESERVE); 1556 1557 sc->sc_xferpool = pool_cache_init(sizeof(struct dwc2_xfer), 0, 0, 0, 1558 "dwc2xfer", NULL, IPL_USB, NULL, NULL, NULL); 1559 sc->sc_qhpool = pool_cache_init(sizeof(struct dwc2_qh), 0, 0, 0, 1560 "dwc2qh", NULL, IPL_USB, NULL, NULL, NULL); 1561 sc->sc_qtdpool = pool_cache_init(sizeof(struct dwc2_qtd), 0, 0, 0, 1562 "dwc2qtd", NULL, IPL_USB, NULL, NULL, NULL); 1563 1564 sc->sc_hsotg = kmem_zalloc(sizeof(struct dwc2_hsotg), KM_SLEEP); 1565 if (sc->sc_hsotg == NULL) { 1566 err = ENOMEM; 1567 goto fail1; 1568 } 1569 1570 sc->sc_hsotg->hsotg_sc = sc; 1571 sc->sc_hsotg->dev = sc->sc_dev; 1572 sc->sc_hcdenabled = true; 1573 1574 err = dwc2_hcd_init(sc->sc_hsotg, sc->sc_params); 1575 if (err) { 1576 err = -err; 1577 goto fail2; 1578 } 1579 1580 return 0; 1581 1582 fail2: 1583 kmem_free(sc->sc_hsotg, sizeof(struct dwc2_hsotg)); 1584 fail1: 1585 softint_disestablish(sc->sc_rhc_si); 1586 1587 return err; 1588 } 1589 1590 #if 0 1591 /* 1592 * curmode is a mode indication bit 0 = device, 1 = host 1593 */ 1594 static const char * const intnames[32] = { 1595 "curmode", "modemis", "otgint", "sof", 1596 "rxflvl", "nptxfemp", "ginnakeff", "goutnakeff", 1597 "ulpickint", "i2cint", "erlysusp", "usbsusp", 1598 "usbrst", "enumdone", "isooutdrop", "eopf", 1599 "restore_done", "epmis", "iepint", "oepint", 1600 "incompisoin", "incomplp", "fetsusp", "resetdet", 1601 "prtint", "hchint", "ptxfemp", "lpm", 1602 "conidstschng", "disconnint", "sessreqint", "wkupint" 1603 }; 1604 1605 1606 /***********************************************************************/ 1607 1608 #endif 1609 1610 1611 void 1612 dw_callout(void *arg) 1613 { 1614 struct delayed_work *dw = arg; 1615 1616 workqueue_enqueue(dw->dw_wq, &dw->work, NULL); 1617 } 1618 1619 void dwc2_host_hub_info(struct dwc2_hsotg *hsotg, void *context, int *hub_addr, 1620 int *hub_port) 1621 { 1622 usbd_xfer_handle xfer = context; 1623 struct dwc2_pipe *dpipe = DWC2_XFER2DPIPE(xfer); 1624 usbd_device_handle dev = dpipe->pipe.device; 1625 1626 *hub_addr = dev->myhsport->parent->address; 1627 *hub_port = dev->myhsport->portno; 1628 } 1629 1630 int dwc2_host_get_speed(struct dwc2_hsotg *hsotg, void *context) 1631 { 1632 usbd_xfer_handle xfer = context; 1633 struct dwc2_pipe *dpipe = DWC2_XFER2DPIPE(xfer); 1634 usbd_device_handle dev = dpipe->pipe.device; 1635 1636 return dev->speed; 1637 } 1638 1639 /* 1640 * Sets the final status of an URB and returns it to the upper layer. Any 1641 * required cleanup of the URB is performed. 1642 * 1643 * Must be called with interrupt disabled and spinlock held 1644 */ 1645 void dwc2_host_complete(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd, 1646 int status) 1647 { 1648 usbd_xfer_handle xfer; 1649 struct dwc2_xfer *dxfer; 1650 struct dwc2_softc *sc; 1651 usb_endpoint_descriptor_t *ed; 1652 uint8_t xfertype; 1653 1654 if (!qtd) { 1655 dev_dbg(hsotg->dev, "## %s: qtd is NULL ##\n", __func__); 1656 return; 1657 } 1658 1659 if (!qtd->urb) { 1660 dev_dbg(hsotg->dev, "## %s: qtd->urb is NULL ##\n", __func__); 1661 return; 1662 } 1663 1664 xfer = qtd->urb->priv; 1665 if (!xfer) { 1666 dev_dbg(hsotg->dev, "## %s: urb->priv is NULL ##\n", __func__); 1667 return; 1668 } 1669 1670 dxfer = DWC2_XFER2DXFER(xfer); 1671 sc = DWC2_XFER2SC(xfer); 1672 ed = xfer->pipe->endpoint->edesc; 1673 xfertype = UE_GET_XFERTYPE(ed->bmAttributes); 1674 1675 xfer->actlen = dwc2_hcd_urb_get_actual_length(qtd->urb); 1676 1677 if (xfertype == UE_ISOCHRONOUS && dbg_perio()) { 1678 int i; 1679 1680 for (i = 0; i < xfer->nframes; i++) 1681 dev_vdbg(hsotg->dev, " ISO Desc %d status %d\n", 1682 i, qtd->urb->iso_descs[i].status); 1683 } 1684 1685 if (xfertype == UE_ISOCHRONOUS) { 1686 int i; 1687 1688 xfer->actlen = 0; 1689 for (i = 0; i < xfer->nframes; ++i) { 1690 xfer->frlengths[i] = 1691 dwc2_hcd_urb_get_iso_desc_actual_length( 1692 qtd->urb, i); 1693 xfer->actlen += xfer->frlengths[i]; 1694 } 1695 } 1696 1697 if (!status) { 1698 if (!(xfer->flags & USBD_SHORT_XFER_OK) && 1699 xfer->actlen < xfer->length) 1700 status = -EIO; 1701 } 1702 1703 switch (status) { 1704 case 0: 1705 xfer->status = USBD_NORMAL_COMPLETION; 1706 break; 1707 case -EPIPE: 1708 xfer->status = USBD_STALLED; 1709 break; 1710 case -ETIMEDOUT: 1711 xfer->status = USBD_TIMEOUT; 1712 break; 1713 case -EPROTO: 1714 xfer->status = USBD_INVAL; 1715 break; 1716 case -EIO: 1717 xfer->status = USBD_IOERROR; 1718 break; 1719 case -EOVERFLOW: 1720 xfer->status = USBD_IOERROR; 1721 break; 1722 default: 1723 printf("%s: unknown error status %d\n", __func__, status); 1724 } 1725 1726 if (xfertype == UE_ISOCHRONOUS || 1727 xfertype == UE_INTERRUPT) { 1728 struct dwc2_pipe *dpipe = DWC2_XFER2DPIPE(xfer); 1729 1730 dwc2_free_bus_bandwidth(hsotg, 1731 dwc2_hcd_get_ep_bandwidth(hsotg, dpipe), 1732 xfer); 1733 } 1734 1735 qtd->urb = NULL; 1736 callout_stop(&xfer->timeout_handle); 1737 1738 KASSERT(mutex_owned(&hsotg->lock)); 1739 1740 TAILQ_INSERT_TAIL(&sc->sc_complete, dxfer, xnext); 1741 1742 usb_schedsoftintr(&sc->sc_bus); 1743 } 1744 1745 1746 int 1747 _dwc2_hcd_start(struct dwc2_hsotg *hsotg) 1748 { 1749 dev_dbg(hsotg->dev, "DWC OTG HCD START\n"); 1750 1751 mutex_spin_enter(&hsotg->lock); 1752 1753 hsotg->op_state = OTG_STATE_A_HOST; 1754 1755 dwc2_hcd_reinit(hsotg); 1756 1757 /*XXXNH*/ 1758 delay(50); 1759 1760 mutex_spin_exit(&hsotg->lock); 1761 return 0; 1762 } 1763 1764 int dwc2_host_is_b_hnp_enabled(struct dwc2_hsotg *hsotg) 1765 { 1766 1767 return false; 1768 } 1769
Indexes created Tue Sep 23 14:10:03 GMT 2025