ubt.c revision 1.43
1 /* $NetBSD: ubt.c,v 1.43 2012/01/14 21:37:17 plunky Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Iain Hibbert for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 /* 34 * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc. 35 * All rights reserved. 36 * 37 * This code is derived from software contributed to The NetBSD Foundation 38 * by Lennart Augustsson (lennart (at) augustsson.net) and 39 * David Sainty (David.Sainty (at) dtsp.co.nz). 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 60 * POSSIBILITY OF SUCH DAMAGE. 61 */ 62 /* 63 * This driver originally written by Lennart Augustsson and David Sainty, 64 * but was mostly rewritten for the NetBSD Bluetooth protocol stack by 65 * Iain Hibbert for Itronix, Inc using the FreeBSD ng_ubt.c driver as a 66 * reference. 67 */ 68 69 #include <sys/cdefs.h> 70 __KERNEL_RCSID(0, "$NetBSD: ubt.c,v 1.43 2012/01/14 21:37:17 plunky Exp $"); 71 72 #include <sys/param.h> 73 #include <sys/device.h> 74 #include <sys/ioctl.h> 75 #include <sys/kernel.h> 76 #include <sys/malloc.h> 77 #include <sys/mbuf.h> 78 #include <sys/proc.h> 79 #include <sys/sysctl.h> 80 #include <sys/systm.h> 81 82 #include <dev/usb/usb.h> 83 #include <dev/usb/usbdi.h> 84 #include <dev/usb/usbdi_util.h> 85 #include <dev/usb/usbdevs.h> 86 87 #include <netbt/bluetooth.h> 88 #include <netbt/hci.h> 89 90 /******************************************************************************* 91 * 92 * debugging stuff 93 */ 94 #undef DPRINTF 95 #undef DPRINTFN 96 97 #ifdef UBT_DEBUG 98 int ubt_debug = 0; 99 100 #define DPRINTF(...) do { \ 101 if (ubt_debug) { \ 102 printf("%s: ", __func__); \ 103 printf(__VA_ARGS__); \ 104 } \ 105 } while (/* CONSTCOND */0) 106 107 #define DPRINTFN(n, ...) do { \ 108 if (ubt_debug > (n)) { \ 109 printf("%s: ", __func__); \ 110 printf(__VA_ARGS__); \ 111 } \ 112 } while (/* CONSTCOND */0) 113 114 SYSCTL_SETUP(sysctl_hw_ubt_debug_setup, "sysctl hw.ubt_debug setup") 115 { 116 117 sysctl_createv(NULL, 0, NULL, NULL, 118 CTLFLAG_PERMANENT, 119 CTLTYPE_NODE, "hw", 120 NULL, 121 NULL, 0, 122 NULL, 0, 123 CTL_HW, CTL_EOL); 124 125 sysctl_createv(NULL, 0, NULL, NULL, 126 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 127 CTLTYPE_INT, "ubt_debug", 128 SYSCTL_DESCR("ubt debug level"), 129 NULL, 0, 130 &ubt_debug, sizeof(ubt_debug), 131 CTL_HW, CTL_CREATE, CTL_EOL); 132 } 133 #else 134 #define DPRINTF(...) 135 #define DPRINTFN(...) 136 #endif 137 138 /******************************************************************************* 139 * 140 * ubt softc structure 141 * 142 */ 143 144 /* buffer sizes */ 145 /* 146 * NB: although ACL packets can extend to 65535 bytes, most devices 147 * have max_acl_size at much less (largest I have seen is 384) 148 */ 149 #define UBT_BUFSIZ_CMD (HCI_CMD_PKT_SIZE - 1) 150 #define UBT_BUFSIZ_ACL (2048 - 1) 151 #define UBT_BUFSIZ_EVENT (HCI_EVENT_PKT_SIZE - 1) 152 153 /* Transmit timeouts */ 154 #define UBT_CMD_TIMEOUT USBD_DEFAULT_TIMEOUT 155 #define UBT_ACL_TIMEOUT USBD_DEFAULT_TIMEOUT 156 157 /* 158 * ISOC transfers 159 * 160 * xfer buffer size depends on the frame size, and the number 161 * of frames per transfer is fixed, as each frame should be 162 * 1ms worth of data. This keeps the rate that xfers complete 163 * fairly constant. We use multiple xfers to keep the hardware 164 * busy 165 */ 166 #define UBT_NXFERS 3 /* max xfers to queue */ 167 #define UBT_NFRAMES 10 /* frames per xfer */ 168 169 struct ubt_isoc_xfer { 170 struct ubt_softc *softc; 171 usbd_xfer_handle xfer; 172 uint8_t *buf; 173 uint16_t size[UBT_NFRAMES]; 174 int busy; 175 }; 176 177 struct ubt_softc { 178 device_t sc_dev; 179 usbd_device_handle sc_udev; 180 int sc_refcnt; 181 int sc_dying; 182 int sc_enabled; 183 184 /* Control Interface */ 185 usbd_interface_handle sc_iface0; 186 187 /* Commands (control) */ 188 usbd_xfer_handle sc_cmd_xfer; 189 uint8_t *sc_cmd_buf; 190 int sc_cmd_busy; /* write active */ 191 MBUFQ_HEAD() sc_cmd_queue; /* output queue */ 192 193 /* Events (interrupt) */ 194 int sc_evt_addr; /* endpoint address */ 195 usbd_pipe_handle sc_evt_pipe; 196 uint8_t *sc_evt_buf; 197 198 /* ACL data (in) */ 199 int sc_aclrd_addr; /* endpoint address */ 200 usbd_pipe_handle sc_aclrd_pipe; /* read pipe */ 201 usbd_xfer_handle sc_aclrd_xfer; /* read xfer */ 202 uint8_t *sc_aclrd_buf; /* read buffer */ 203 int sc_aclrd_busy; /* reading */ 204 205 /* ACL data (out) */ 206 int sc_aclwr_addr; /* endpoint address */ 207 usbd_pipe_handle sc_aclwr_pipe; /* write pipe */ 208 usbd_xfer_handle sc_aclwr_xfer; /* write xfer */ 209 uint8_t *sc_aclwr_buf; /* write buffer */ 210 int sc_aclwr_busy; /* write active */ 211 MBUFQ_HEAD() sc_aclwr_queue;/* output queue */ 212 213 /* ISOC interface */ 214 usbd_interface_handle sc_iface1; /* ISOC interface */ 215 struct sysctllog *sc_log; /* sysctl log */ 216 int sc_config; /* current config no */ 217 int sc_alt_config; /* no of alternates */ 218 219 /* SCO data (in) */ 220 int sc_scord_addr; /* endpoint address */ 221 usbd_pipe_handle sc_scord_pipe; /* read pipe */ 222 int sc_scord_size; /* frame length */ 223 struct ubt_isoc_xfer sc_scord[UBT_NXFERS]; 224 struct mbuf *sc_scord_mbuf; /* current packet */ 225 226 /* SCO data (out) */ 227 int sc_scowr_addr; /* endpoint address */ 228 usbd_pipe_handle sc_scowr_pipe; /* write pipe */ 229 int sc_scowr_size; /* frame length */ 230 struct ubt_isoc_xfer sc_scowr[UBT_NXFERS]; 231 struct mbuf *sc_scowr_mbuf; /* current packet */ 232 int sc_scowr_busy; /* write active */ 233 MBUFQ_HEAD() sc_scowr_queue;/* output queue */ 234 235 /* Protocol structure */ 236 struct hci_unit *sc_unit; 237 struct bt_stats sc_stats; 238 239 /* Successfully attached */ 240 int sc_ok; 241 }; 242 243 /******************************************************************************* 244 * 245 * Bluetooth unit/USB callback routines 246 * 247 */ 248 static int ubt_enable(device_t); 249 static void ubt_disable(device_t); 250 251 static void ubt_xmit_cmd(device_t, struct mbuf *); 252 static void ubt_xmit_cmd_start(struct ubt_softc *); 253 static void ubt_xmit_cmd_complete(usbd_xfer_handle, 254 usbd_private_handle, usbd_status); 255 256 static void ubt_xmit_acl(device_t, struct mbuf *); 257 static void ubt_xmit_acl_start(struct ubt_softc *); 258 static void ubt_xmit_acl_complete(usbd_xfer_handle, 259 usbd_private_handle, usbd_status); 260 261 static void ubt_xmit_sco(device_t, struct mbuf *); 262 static void ubt_xmit_sco_start(struct ubt_softc *); 263 static void ubt_xmit_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 264 static void ubt_xmit_sco_complete(usbd_xfer_handle, 265 usbd_private_handle, usbd_status); 266 267 static void ubt_recv_event(usbd_xfer_handle, 268 usbd_private_handle, usbd_status); 269 270 static void ubt_recv_acl_start(struct ubt_softc *); 271 static void ubt_recv_acl_complete(usbd_xfer_handle, 272 usbd_private_handle, usbd_status); 273 274 static void ubt_recv_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 275 static void ubt_recv_sco_complete(usbd_xfer_handle, 276 usbd_private_handle, usbd_status); 277 278 static void ubt_stats(device_t, struct bt_stats *, int); 279 280 static const struct hci_if ubt_hci = { 281 .enable = ubt_enable, 282 .disable = ubt_disable, 283 .output_cmd = ubt_xmit_cmd, 284 .output_acl = ubt_xmit_acl, 285 .output_sco = ubt_xmit_sco, 286 .get_stats = ubt_stats, 287 .ipl = IPL_USB, /* IPL_SOFTUSB ??? */ 288 }; 289 290 /******************************************************************************* 291 * 292 * USB Autoconfig stuff 293 * 294 */ 295 296 int ubt_match(device_t, cfdata_t, void *); 297 void ubt_attach(device_t, device_t, void *); 298 int ubt_detach(device_t, int); 299 int ubt_activate(device_t, enum devact); 300 extern struct cfdriver ubt_cd; 301 CFATTACH_DECL_NEW(ubt, sizeof(struct ubt_softc), ubt_match, ubt_attach, ubt_detach, ubt_activate); 302 303 static int ubt_set_isoc_config(struct ubt_softc *); 304 static int ubt_sysctl_config(SYSCTLFN_PROTO); 305 static void ubt_abortdealloc(struct ubt_softc *); 306 307 /* 308 * Match against the whole device, since we want to take 309 * both interfaces. If a device should be ignored then add 310 * 311 * { VendorID, ProductID } 312 * 313 * to the ubt_ignore list. 314 */ 315 static const struct usb_devno ubt_ignore[] = { 316 { USB_VENDOR_BROADCOM, USB_PRODUCT_BROADCOM_BCM2033NF }, 317 }; 318 319 int 320 ubt_match(device_t parent, cfdata_t match, void *aux) 321 { 322 struct usb_attach_arg *uaa = aux; 323 324 DPRINTFN(50, "ubt_match\n"); 325 326 if (usb_lookup(ubt_ignore, uaa->vendor, uaa->product)) 327 return UMATCH_NONE; 328 329 if (uaa->class == UDCLASS_WIRELESS 330 && uaa->subclass == UDSUBCLASS_RF 331 && uaa->proto == UDPROTO_BLUETOOTH) 332 return UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO; 333 334 return UMATCH_NONE; 335 } 336 337 void 338 ubt_attach(device_t parent, device_t self, void *aux) 339 { 340 struct ubt_softc *sc = device_private(self); 341 struct usb_attach_arg *uaa = aux; 342 usb_config_descriptor_t *cd; 343 usb_endpoint_descriptor_t *ed; 344 const struct sysctlnode *node; 345 char *devinfop; 346 int err; 347 uint8_t count, i; 348 349 DPRINTFN(50, "ubt_attach: sc=%p\n", sc); 350 351 sc->sc_dev = self; 352 sc->sc_udev = uaa->device; 353 354 MBUFQ_INIT(&sc->sc_cmd_queue); 355 MBUFQ_INIT(&sc->sc_aclwr_queue); 356 MBUFQ_INIT(&sc->sc_scowr_queue); 357 358 aprint_naive("\n"); 359 aprint_normal("\n"); 360 361 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 362 aprint_normal_dev(self, "%s\n", devinfop); 363 usbd_devinfo_free(devinfop); 364 365 /* 366 * Move the device into the configured state 367 */ 368 err = usbd_set_config_index(sc->sc_udev, 0, 1); 369 if (err) { 370 aprint_error_dev(self, "failed to set configuration idx 0: %s\n", 371 usbd_errstr(err)); 372 373 return; 374 } 375 376 /* 377 * Interface 0 must have 3 endpoints 378 * 1) Interrupt endpoint to receive HCI events 379 * 2) Bulk IN endpoint to receive ACL data 380 * 3) Bulk OUT endpoint to send ACL data 381 */ 382 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface0); 383 if (err) { 384 aprint_error_dev(self, "Could not get interface 0 handle %s (%d)\n", 385 usbd_errstr(err), err); 386 387 return; 388 } 389 390 sc->sc_evt_addr = -1; 391 sc->sc_aclrd_addr = -1; 392 sc->sc_aclwr_addr = -1; 393 394 count = 0; 395 (void)usbd_endpoint_count(sc->sc_iface0, &count); 396 397 for (i = 0 ; i < count ; i++) { 398 int dir, type; 399 400 ed = usbd_interface2endpoint_descriptor(sc->sc_iface0, i); 401 if (ed == NULL) { 402 aprint_error_dev(self, 403 "could not read endpoint descriptor %d\n", i); 404 405 return; 406 } 407 408 dir = UE_GET_DIR(ed->bEndpointAddress); 409 type = UE_GET_XFERTYPE(ed->bmAttributes); 410 411 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 412 sc->sc_evt_addr = ed->bEndpointAddress; 413 else if (dir == UE_DIR_IN && type == UE_BULK) 414 sc->sc_aclrd_addr = ed->bEndpointAddress; 415 else if (dir == UE_DIR_OUT && type == UE_BULK) 416 sc->sc_aclwr_addr = ed->bEndpointAddress; 417 } 418 419 if (sc->sc_evt_addr == -1) { 420 aprint_error_dev(self, 421 "missing INTERRUPT endpoint on interface 0\n"); 422 423 return; 424 } 425 if (sc->sc_aclrd_addr == -1) { 426 aprint_error_dev(self, 427 "missing BULK IN endpoint on interface 0\n"); 428 429 return; 430 } 431 if (sc->sc_aclwr_addr == -1) { 432 aprint_error_dev(self, 433 "missing BULK OUT endpoint on interface 0\n"); 434 435 return; 436 } 437 438 /* 439 * Interface 1 must have 2 endpoints 440 * 1) Isochronous IN endpoint to receive SCO data 441 * 2) Isochronous OUT endpoint to send SCO data 442 * 443 * and will have several configurations, which can be selected 444 * via a sysctl variable. We select config 0 to start, which 445 * means that no SCO data will be available. 446 */ 447 err = usbd_device2interface_handle(sc->sc_udev, 1, &sc->sc_iface1); 448 if (err) { 449 aprint_error_dev(self, 450 "Could not get interface 1 handle %s (%d)\n", 451 usbd_errstr(err), err); 452 453 return; 454 } 455 456 cd = usbd_get_config_descriptor(sc->sc_udev); 457 if (cd == NULL) { 458 aprint_error_dev(self, "could not get config descriptor\n"); 459 460 return; 461 } 462 463 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 464 465 /* set initial config */ 466 err = ubt_set_isoc_config(sc); 467 if (err) { 468 aprint_error_dev(self, "ISOC config failed\n"); 469 470 return; 471 } 472 473 /* Attach HCI */ 474 sc->sc_unit = hci_attach(&ubt_hci, sc->sc_dev, 0); 475 476 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 477 sc->sc_dev); 478 479 /* sysctl set-up for alternate configs */ 480 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 481 CTLFLAG_PERMANENT, 482 CTLTYPE_NODE, "hw", 483 NULL, 484 NULL, 0, 485 NULL, 0, 486 CTL_HW, CTL_EOL); 487 488 sysctl_createv(&sc->sc_log, 0, NULL, &node, 489 0, 490 CTLTYPE_NODE, device_xname(sc->sc_dev), 491 SYSCTL_DESCR("ubt driver information"), 492 NULL, 0, 493 NULL, 0, 494 CTL_HW, 495 CTL_CREATE, CTL_EOL); 496 497 if (node != NULL) { 498 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 499 CTLFLAG_READWRITE, 500 CTLTYPE_INT, "config", 501 SYSCTL_DESCR("configuration number"), 502 ubt_sysctl_config, 0, 503 sc, 0, 504 CTL_HW, node->sysctl_num, 505 CTL_CREATE, CTL_EOL); 506 507 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 508 CTLFLAG_READONLY, 509 CTLTYPE_INT, "alt_config", 510 SYSCTL_DESCR("number of alternate configurations"), 511 NULL, 0, 512 &sc->sc_alt_config, sizeof(sc->sc_alt_config), 513 CTL_HW, node->sysctl_num, 514 CTL_CREATE, CTL_EOL); 515 516 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 517 CTLFLAG_READONLY, 518 CTLTYPE_INT, "sco_rxsize", 519 SYSCTL_DESCR("max SCO receive size"), 520 NULL, 0, 521 &sc->sc_scord_size, sizeof(sc->sc_scord_size), 522 CTL_HW, node->sysctl_num, 523 CTL_CREATE, CTL_EOL); 524 525 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 526 CTLFLAG_READONLY, 527 CTLTYPE_INT, "sco_txsize", 528 SYSCTL_DESCR("max SCO transmit size"), 529 NULL, 0, 530 &sc->sc_scowr_size, sizeof(sc->sc_scowr_size), 531 CTL_HW, node->sysctl_num, 532 CTL_CREATE, CTL_EOL); 533 } 534 535 sc->sc_ok = 1; 536 if (!pmf_device_register(self, NULL, NULL)) 537 aprint_error_dev(self, "couldn't establish power handler\n"); 538 return; 539 } 540 541 int 542 ubt_detach(device_t self, int flags) 543 { 544 struct ubt_softc *sc = device_private(self); 545 int s; 546 547 DPRINTF("sc=%p flags=%d\n", sc, flags); 548 549 if (device_pmf_is_registered(self)) 550 pmf_device_deregister(self); 551 552 sc->sc_dying = 1; 553 554 if (!sc->sc_ok) 555 return 0; 556 557 /* delete sysctl nodes */ 558 sysctl_teardown(&sc->sc_log); 559 560 /* Detach HCI interface */ 561 if (sc->sc_unit) { 562 hci_detach(sc->sc_unit); 563 sc->sc_unit = NULL; 564 } 565 566 /* 567 * Abort all pipes. Causes processes waiting for transfer to wake. 568 * 569 * Actually, hci_detach() above will call ubt_disable() which may 570 * call ubt_abortdealloc(), but lets be sure since doing it twice 571 * wont cause an error. 572 */ 573 ubt_abortdealloc(sc); 574 575 /* wait for all processes to finish */ 576 s = splusb(); 577 if (sc->sc_refcnt-- > 0) 578 usb_detach_wait(sc->sc_dev); 579 580 splx(s); 581 582 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 583 sc->sc_dev); 584 585 DPRINTFN(1, "driver detached\n"); 586 587 return 0; 588 } 589 590 int 591 ubt_activate(device_t self, enum devact act) 592 { 593 struct ubt_softc *sc = device_private(self); 594 595 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 596 597 switch (act) { 598 case DVACT_DEACTIVATE: 599 sc->sc_dying = 1; 600 return 0; 601 default: 602 return EOPNOTSUPP; 603 } 604 } 605 606 /* set ISOC configuration */ 607 static int 608 ubt_set_isoc_config(struct ubt_softc *sc) 609 { 610 usb_endpoint_descriptor_t *ed; 611 int rd_addr, wr_addr, rd_size, wr_size; 612 uint8_t count, i; 613 int err; 614 615 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 616 if (err != USBD_NORMAL_COMPLETION) { 617 aprint_error_dev(sc->sc_dev, 618 "Could not set config %d on ISOC interface. %s (%d)\n", 619 sc->sc_config, usbd_errstr(err), err); 620 621 return err == USBD_IN_USE ? EBUSY : EIO; 622 } 623 624 /* 625 * We wont get past the above if there are any pipes open, so no 626 * need to worry about buf/xfer/pipe deallocation. If we get an 627 * error after this, the frame quantities will be 0 and no SCO 628 * data will be possible. 629 */ 630 631 sc->sc_scord_size = rd_size = 0; 632 sc->sc_scord_addr = rd_addr = -1; 633 634 sc->sc_scowr_size = wr_size = 0; 635 sc->sc_scowr_addr = wr_addr = -1; 636 637 count = 0; 638 (void)usbd_endpoint_count(sc->sc_iface1, &count); 639 640 for (i = 0 ; i < count ; i++) { 641 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 642 if (ed == NULL) { 643 aprint_error_dev(sc->sc_dev, 644 "could not read endpoint descriptor %d\n", i); 645 646 return EIO; 647 } 648 649 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 650 device_xname(sc->sc_dev), 651 UE_GET_XFERTYPE(ed->bmAttributes), 652 UE_GET_ISO_TYPE(ed->bmAttributes), 653 ed->bEndpointAddress, 654 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 655 656 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 657 continue; 658 659 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 660 rd_addr = ed->bEndpointAddress; 661 rd_size = UGETW(ed->wMaxPacketSize); 662 } else { 663 wr_addr = ed->bEndpointAddress; 664 wr_size = UGETW(ed->wMaxPacketSize); 665 } 666 } 667 668 if (rd_addr == -1) { 669 aprint_error_dev(sc->sc_dev, 670 "missing ISOC IN endpoint on interface config %d\n", 671 sc->sc_config); 672 673 return ENOENT; 674 } 675 if (wr_addr == -1) { 676 aprint_error_dev(sc->sc_dev, 677 "missing ISOC OUT endpoint on interface config %d\n", 678 sc->sc_config); 679 680 return ENOENT; 681 } 682 683 if (rd_size > MLEN) { 684 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 685 rd_size); 686 687 return EOVERFLOW; 688 } 689 690 if (wr_size > MLEN) { 691 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 692 wr_size); 693 694 return EOVERFLOW; 695 } 696 697 sc->sc_scord_size = rd_size; 698 sc->sc_scord_addr = rd_addr; 699 700 sc->sc_scowr_size = wr_size; 701 sc->sc_scowr_addr = wr_addr; 702 703 return 0; 704 } 705 706 /* sysctl helper to set alternate configurations */ 707 static int 708 ubt_sysctl_config(SYSCTLFN_ARGS) 709 { 710 struct sysctlnode node; 711 struct ubt_softc *sc; 712 int t, error; 713 714 node = *rnode; 715 sc = node.sysctl_data; 716 717 t = sc->sc_config; 718 node.sysctl_data = &t; 719 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 720 if (error || newp == NULL) 721 return error; 722 723 if (t < 0 || t >= sc->sc_alt_config) 724 return EINVAL; 725 726 /* This may not change when the unit is enabled */ 727 if (sc->sc_enabled) 728 return EBUSY; 729 730 sc->sc_config = t; 731 return ubt_set_isoc_config(sc); 732 } 733 734 static void 735 ubt_abortdealloc(struct ubt_softc *sc) 736 { 737 int i; 738 739 DPRINTFN(1, "sc=%p\n", sc); 740 741 /* Abort all pipes */ 742 usbd_abort_default_pipe(sc->sc_udev); 743 744 if (sc->sc_evt_pipe != NULL) { 745 usbd_abort_pipe(sc->sc_evt_pipe); 746 usbd_close_pipe(sc->sc_evt_pipe); 747 sc->sc_evt_pipe = NULL; 748 } 749 750 if (sc->sc_aclrd_pipe != NULL) { 751 usbd_abort_pipe(sc->sc_aclrd_pipe); 752 usbd_close_pipe(sc->sc_aclrd_pipe); 753 sc->sc_aclrd_pipe = NULL; 754 } 755 756 if (sc->sc_aclwr_pipe != NULL) { 757 usbd_abort_pipe(sc->sc_aclwr_pipe); 758 usbd_close_pipe(sc->sc_aclwr_pipe); 759 sc->sc_aclwr_pipe = NULL; 760 } 761 762 if (sc->sc_scord_pipe != NULL) { 763 usbd_abort_pipe(sc->sc_scord_pipe); 764 usbd_close_pipe(sc->sc_scord_pipe); 765 sc->sc_scord_pipe = NULL; 766 } 767 768 if (sc->sc_scowr_pipe != NULL) { 769 usbd_abort_pipe(sc->sc_scowr_pipe); 770 usbd_close_pipe(sc->sc_scowr_pipe); 771 sc->sc_scowr_pipe = NULL; 772 } 773 774 /* Free event buffer */ 775 if (sc->sc_evt_buf != NULL) { 776 free(sc->sc_evt_buf, M_USBDEV); 777 sc->sc_evt_buf = NULL; 778 } 779 780 /* Free all xfers and xfer buffers (implicit) */ 781 if (sc->sc_cmd_xfer != NULL) { 782 usbd_free_xfer(sc->sc_cmd_xfer); 783 sc->sc_cmd_xfer = NULL; 784 sc->sc_cmd_buf = NULL; 785 } 786 787 if (sc->sc_aclrd_xfer != NULL) { 788 usbd_free_xfer(sc->sc_aclrd_xfer); 789 sc->sc_aclrd_xfer = NULL; 790 sc->sc_aclrd_buf = NULL; 791 } 792 793 if (sc->sc_aclwr_xfer != NULL) { 794 usbd_free_xfer(sc->sc_aclwr_xfer); 795 sc->sc_aclwr_xfer = NULL; 796 sc->sc_aclwr_buf = NULL; 797 } 798 799 for (i = 0 ; i < UBT_NXFERS ; i++) { 800 if (sc->sc_scord[i].xfer != NULL) { 801 usbd_free_xfer(sc->sc_scord[i].xfer); 802 sc->sc_scord[i].xfer = NULL; 803 sc->sc_scord[i].buf = NULL; 804 } 805 806 if (sc->sc_scowr[i].xfer != NULL) { 807 usbd_free_xfer(sc->sc_scowr[i].xfer); 808 sc->sc_scowr[i].xfer = NULL; 809 sc->sc_scowr[i].buf = NULL; 810 } 811 } 812 813 /* Free partial SCO packets */ 814 if (sc->sc_scord_mbuf != NULL) { 815 m_freem(sc->sc_scord_mbuf); 816 sc->sc_scord_mbuf = NULL; 817 } 818 819 if (sc->sc_scowr_mbuf != NULL) { 820 m_freem(sc->sc_scowr_mbuf); 821 sc->sc_scowr_mbuf = NULL; 822 } 823 824 /* Empty mbuf queues */ 825 MBUFQ_DRAIN(&sc->sc_cmd_queue); 826 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 827 MBUFQ_DRAIN(&sc->sc_scowr_queue); 828 } 829 830 /******************************************************************************* 831 * 832 * Bluetooth Unit/USB callbacks 833 * 834 */ 835 static int 836 ubt_enable(device_t self) 837 { 838 struct ubt_softc *sc = device_private(self); 839 usbd_status err; 840 int s, i, error; 841 842 DPRINTFN(1, "sc=%p\n", sc); 843 844 if (sc->sc_enabled) 845 return 0; 846 847 s = splusb(); 848 849 /* Events */ 850 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 851 if (sc->sc_evt_buf == NULL) { 852 error = ENOMEM; 853 goto bad; 854 } 855 err = usbd_open_pipe_intr(sc->sc_iface0, 856 sc->sc_evt_addr, 857 USBD_SHORT_XFER_OK, 858 &sc->sc_evt_pipe, 859 sc, 860 sc->sc_evt_buf, 861 UBT_BUFSIZ_EVENT, 862 ubt_recv_event, 863 USBD_DEFAULT_INTERVAL); 864 if (err != USBD_NORMAL_COMPLETION) { 865 error = EIO; 866 goto bad; 867 } 868 869 /* Commands */ 870 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 871 if (sc->sc_cmd_xfer == NULL) { 872 error = ENOMEM; 873 goto bad; 874 } 875 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 876 if (sc->sc_cmd_buf == NULL) { 877 error = ENOMEM; 878 goto bad; 879 } 880 sc->sc_cmd_busy = 0; 881 882 /* ACL read */ 883 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 884 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 885 if (err != USBD_NORMAL_COMPLETION) { 886 error = EIO; 887 goto bad; 888 } 889 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 890 if (sc->sc_aclrd_xfer == NULL) { 891 error = ENOMEM; 892 goto bad; 893 } 894 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 895 if (sc->sc_aclrd_buf == NULL) { 896 error = ENOMEM; 897 goto bad; 898 } 899 sc->sc_aclrd_busy = 0; 900 ubt_recv_acl_start(sc); 901 902 /* ACL write */ 903 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 904 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 905 if (err != USBD_NORMAL_COMPLETION) { 906 error = EIO; 907 goto bad; 908 } 909 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 910 if (sc->sc_aclwr_xfer == NULL) { 911 error = ENOMEM; 912 goto bad; 913 } 914 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 915 if (sc->sc_aclwr_buf == NULL) { 916 error = ENOMEM; 917 goto bad; 918 } 919 sc->sc_aclwr_busy = 0; 920 921 /* SCO read */ 922 if (sc->sc_scord_size > 0) { 923 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 924 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 925 if (err != USBD_NORMAL_COMPLETION) { 926 error = EIO; 927 goto bad; 928 } 929 930 for (i = 0 ; i < UBT_NXFERS ; i++) { 931 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 932 if (sc->sc_scord[i].xfer == NULL) { 933 error = ENOMEM; 934 goto bad; 935 } 936 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 937 sc->sc_scord_size * UBT_NFRAMES); 938 if (sc->sc_scord[i].buf == NULL) { 939 error = ENOMEM; 940 goto bad; 941 } 942 sc->sc_scord[i].softc = sc; 943 sc->sc_scord[i].busy = 0; 944 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 945 } 946 } 947 948 /* SCO write */ 949 if (sc->sc_scowr_size > 0) { 950 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 951 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 952 if (err != USBD_NORMAL_COMPLETION) { 953 error = EIO; 954 goto bad; 955 } 956 957 for (i = 0 ; i < UBT_NXFERS ; i++) { 958 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 959 if (sc->sc_scowr[i].xfer == NULL) { 960 error = ENOMEM; 961 goto bad; 962 } 963 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 964 sc->sc_scowr_size * UBT_NFRAMES); 965 if (sc->sc_scowr[i].buf == NULL) { 966 error = ENOMEM; 967 goto bad; 968 } 969 sc->sc_scowr[i].softc = sc; 970 sc->sc_scowr[i].busy = 0; 971 } 972 973 sc->sc_scowr_busy = 0; 974 } 975 976 sc->sc_enabled = 1; 977 splx(s); 978 return 0; 979 980 bad: 981 ubt_abortdealloc(sc); 982 splx(s); 983 return error; 984 } 985 986 static void 987 ubt_disable(device_t self) 988 { 989 struct ubt_softc *sc = device_private(self); 990 int s; 991 992 DPRINTFN(1, "sc=%p\n", sc); 993 994 if (sc->sc_enabled == 0) 995 return; 996 997 s = splusb(); 998 ubt_abortdealloc(sc); 999 1000 sc->sc_enabled = 0; 1001 splx(s); 1002 } 1003 1004 static void 1005 ubt_xmit_cmd(device_t self, struct mbuf *m) 1006 { 1007 struct ubt_softc *sc = device_private(self); 1008 int s; 1009 1010 KASSERT(sc->sc_enabled); 1011 1012 s = splusb(); 1013 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1014 1015 if (sc->sc_cmd_busy == 0) 1016 ubt_xmit_cmd_start(sc); 1017 1018 splx(s); 1019 } 1020 1021 static void 1022 ubt_xmit_cmd_start(struct ubt_softc *sc) 1023 { 1024 usb_device_request_t req; 1025 usbd_status status; 1026 struct mbuf *m; 1027 int len; 1028 1029 if (sc->sc_dying) 1030 return; 1031 1032 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1033 return; 1034 1035 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1036 KASSERT(m != NULL); 1037 1038 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1039 device_xname(sc->sc_dev), m->m_pkthdr.len); 1040 1041 sc->sc_refcnt++; 1042 sc->sc_cmd_busy = 1; 1043 1044 len = m->m_pkthdr.len - 1; 1045 m_copydata(m, 1, len, sc->sc_cmd_buf); 1046 m_freem(m); 1047 1048 memset(&req, 0, sizeof(req)); 1049 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1050 USETW(req.wLength, len); 1051 1052 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1053 sc->sc_udev, 1054 sc, 1055 UBT_CMD_TIMEOUT, 1056 &req, 1057 sc->sc_cmd_buf, 1058 len, 1059 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1060 ubt_xmit_cmd_complete); 1061 1062 status = usbd_transfer(sc->sc_cmd_xfer); 1063 1064 KASSERT(status != USBD_NORMAL_COMPLETION); 1065 1066 if (status != USBD_IN_PROGRESS) { 1067 DPRINTF("usbd_transfer status=%s (%d)\n", 1068 usbd_errstr(status), status); 1069 1070 sc->sc_refcnt--; 1071 sc->sc_cmd_busy = 0; 1072 } 1073 } 1074 1075 static void 1076 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1077 usbd_private_handle h, usbd_status status) 1078 { 1079 struct ubt_softc *sc = h; 1080 uint32_t count; 1081 1082 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1083 device_xname(sc->sc_dev), usbd_errstr(status), status); 1084 1085 sc->sc_cmd_busy = 0; 1086 1087 if (--sc->sc_refcnt < 0) { 1088 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1089 usb_detach_wakeup(sc->sc_dev); 1090 return; 1091 } 1092 1093 if (sc->sc_dying) { 1094 DPRINTF("sc_dying\n"); 1095 return; 1096 } 1097 1098 if (status != USBD_NORMAL_COMPLETION) { 1099 DPRINTF("status=%s (%d)\n", 1100 usbd_errstr(status), status); 1101 1102 sc->sc_stats.err_tx++; 1103 return; 1104 } 1105 1106 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1107 sc->sc_stats.cmd_tx++; 1108 sc->sc_stats.byte_tx += count; 1109 1110 ubt_xmit_cmd_start(sc); 1111 } 1112 1113 static void 1114 ubt_xmit_acl(device_t self, struct mbuf *m) 1115 { 1116 struct ubt_softc *sc = device_private(self); 1117 int s; 1118 1119 KASSERT(sc->sc_enabled); 1120 1121 s = splusb(); 1122 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1123 1124 if (sc->sc_aclwr_busy == 0) 1125 ubt_xmit_acl_start(sc); 1126 1127 splx(s); 1128 } 1129 1130 static void 1131 ubt_xmit_acl_start(struct ubt_softc *sc) 1132 { 1133 struct mbuf *m; 1134 usbd_status status; 1135 int len; 1136 1137 if (sc->sc_dying) 1138 return; 1139 1140 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1141 return; 1142 1143 sc->sc_refcnt++; 1144 sc->sc_aclwr_busy = 1; 1145 1146 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1147 KASSERT(m != NULL); 1148 1149 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1150 device_xname(sc->sc_dev), m->m_pkthdr.len); 1151 1152 len = m->m_pkthdr.len - 1; 1153 if (len > UBT_BUFSIZ_ACL) { 1154 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1155 device_xname(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1156 1157 len = UBT_BUFSIZ_ACL; 1158 } 1159 1160 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1161 m_freem(m); 1162 1163 sc->sc_stats.acl_tx++; 1164 sc->sc_stats.byte_tx += len; 1165 1166 usbd_setup_xfer(sc->sc_aclwr_xfer, 1167 sc->sc_aclwr_pipe, 1168 sc, 1169 sc->sc_aclwr_buf, 1170 len, 1171 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1172 UBT_ACL_TIMEOUT, 1173 ubt_xmit_acl_complete); 1174 1175 status = usbd_transfer(sc->sc_aclwr_xfer); 1176 1177 KASSERT(status != USBD_NORMAL_COMPLETION); 1178 1179 if (status != USBD_IN_PROGRESS) { 1180 DPRINTF("usbd_transfer status=%s (%d)\n", 1181 usbd_errstr(status), status); 1182 1183 sc->sc_refcnt--; 1184 sc->sc_aclwr_busy = 0; 1185 } 1186 } 1187 1188 static void 1189 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1190 usbd_private_handle h, usbd_status status) 1191 { 1192 struct ubt_softc *sc = h; 1193 1194 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1195 device_xname(sc->sc_dev), usbd_errstr(status), status); 1196 1197 sc->sc_aclwr_busy = 0; 1198 1199 if (--sc->sc_refcnt < 0) { 1200 usb_detach_wakeup(sc->sc_dev); 1201 return; 1202 } 1203 1204 if (sc->sc_dying) 1205 return; 1206 1207 if (status != USBD_NORMAL_COMPLETION) { 1208 DPRINTF("status=%s (%d)\n", 1209 usbd_errstr(status), status); 1210 1211 sc->sc_stats.err_tx++; 1212 1213 if (status == USBD_STALLED) 1214 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1215 else 1216 return; 1217 } 1218 1219 ubt_xmit_acl_start(sc); 1220 } 1221 1222 static void 1223 ubt_xmit_sco(device_t self, struct mbuf *m) 1224 { 1225 struct ubt_softc *sc = device_private(self); 1226 int s; 1227 1228 KASSERT(sc->sc_enabled); 1229 1230 s = splusb(); 1231 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1232 1233 if (sc->sc_scowr_busy == 0) 1234 ubt_xmit_sco_start(sc); 1235 1236 splx(s); 1237 } 1238 1239 static void 1240 ubt_xmit_sco_start(struct ubt_softc *sc) 1241 { 1242 int i; 1243 1244 if (sc->sc_dying || sc->sc_scowr_size == 0) 1245 return; 1246 1247 for (i = 0 ; i < UBT_NXFERS ; i++) { 1248 if (sc->sc_scowr[i].busy) 1249 continue; 1250 1251 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1252 } 1253 } 1254 1255 static void 1256 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1257 { 1258 struct mbuf *m; 1259 uint8_t *buf; 1260 int num, len, size, space; 1261 1262 space = sc->sc_scowr_size * UBT_NFRAMES; 1263 buf = isoc->buf; 1264 len = 0; 1265 1266 /* 1267 * Fill the request buffer with data from the queue, 1268 * keeping any leftover packet on our private hook. 1269 * 1270 * Complete packets are passed back up to the stack 1271 * for disposal, since we can't rely on the controller 1272 * to tell us when it has finished with them. 1273 */ 1274 1275 m = sc->sc_scowr_mbuf; 1276 while (space > 0) { 1277 if (m == NULL) { 1278 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1279 if (m == NULL) 1280 break; 1281 1282 m_adj(m, 1); /* packet type */ 1283 } 1284 1285 if (m->m_pkthdr.len > 0) { 1286 size = MIN(m->m_pkthdr.len, space); 1287 1288 m_copydata(m, 0, size, buf); 1289 m_adj(m, size); 1290 1291 buf += size; 1292 len += size; 1293 space -= size; 1294 } 1295 1296 if (m->m_pkthdr.len == 0) { 1297 sc->sc_stats.sco_tx++; 1298 if (!hci_complete_sco(sc->sc_unit, m)) 1299 sc->sc_stats.err_tx++; 1300 1301 m = NULL; 1302 } 1303 } 1304 sc->sc_scowr_mbuf = m; 1305 1306 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1307 1308 if (len == 0) /* nothing to send */ 1309 return; 1310 1311 sc->sc_refcnt++; 1312 sc->sc_scowr_busy = 1; 1313 sc->sc_stats.byte_tx += len; 1314 isoc->busy = 1; 1315 1316 /* 1317 * calculate number of isoc frames and sizes 1318 */ 1319 1320 for (num = 0 ; len > 0 ; num++) { 1321 size = MIN(sc->sc_scowr_size, len); 1322 1323 isoc->size[num] = size; 1324 len -= size; 1325 } 1326 1327 usbd_setup_isoc_xfer(isoc->xfer, 1328 sc->sc_scowr_pipe, 1329 isoc, 1330 isoc->size, 1331 num, 1332 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1333 ubt_xmit_sco_complete); 1334 1335 usbd_transfer(isoc->xfer); 1336 } 1337 1338 static void 1339 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1340 usbd_private_handle h, usbd_status status) 1341 { 1342 struct ubt_isoc_xfer *isoc = h; 1343 struct ubt_softc *sc; 1344 int i; 1345 1346 KASSERT(xfer == isoc->xfer); 1347 sc = isoc->softc; 1348 1349 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1350 isoc, usbd_errstr(status), status); 1351 1352 isoc->busy = 0; 1353 1354 for (i = 0 ; ; i++) { 1355 if (i == UBT_NXFERS) { 1356 sc->sc_scowr_busy = 0; 1357 break; 1358 } 1359 1360 if (sc->sc_scowr[i].busy) 1361 break; 1362 } 1363 1364 if (--sc->sc_refcnt < 0) { 1365 usb_detach_wakeup(sc->sc_dev); 1366 return; 1367 } 1368 1369 if (sc->sc_dying) 1370 return; 1371 1372 if (status != USBD_NORMAL_COMPLETION) { 1373 DPRINTF("status=%s (%d)\n", 1374 usbd_errstr(status), status); 1375 1376 sc->sc_stats.err_tx++; 1377 1378 if (status == USBD_STALLED) 1379 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1380 else 1381 return; 1382 } 1383 1384 ubt_xmit_sco_start(sc); 1385 } 1386 1387 /* 1388 * load incoming data into an mbuf with 1389 * leading type byte 1390 */ 1391 static struct mbuf * 1392 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1393 { 1394 struct mbuf *m; 1395 1396 MGETHDR(m, M_DONTWAIT, MT_DATA); 1397 if (m == NULL) 1398 return NULL; 1399 1400 *mtod(m, uint8_t *) = type; 1401 m->m_pkthdr.len = m->m_len = MHLEN; 1402 m_copyback(m, 1, count, buf); // (extends if necessary) 1403 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1404 m_free(m); 1405 return NULL; 1406 } 1407 1408 m->m_pkthdr.len = count + 1; 1409 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1410 1411 return m; 1412 } 1413 1414 static void 1415 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1416 { 1417 struct ubt_softc *sc = h; 1418 struct mbuf *m; 1419 uint32_t count; 1420 void *buf; 1421 1422 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1423 sc, usbd_errstr(status), status); 1424 1425 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1426 return; 1427 1428 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1429 1430 if (count < sizeof(hci_event_hdr_t) - 1) { 1431 DPRINTF("dumped undersized event (count = %d)\n", count); 1432 sc->sc_stats.err_rx++; 1433 return; 1434 } 1435 1436 sc->sc_stats.evt_rx++; 1437 sc->sc_stats.byte_rx += count; 1438 1439 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1440 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1441 sc->sc_stats.err_rx++; 1442 } 1443 1444 static void 1445 ubt_recv_acl_start(struct ubt_softc *sc) 1446 { 1447 usbd_status status; 1448 1449 DPRINTFN(15, "sc=%p\n", sc); 1450 1451 if (sc->sc_aclrd_busy || sc->sc_dying) { 1452 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1453 sc->sc_aclrd_busy, 1454 sc->sc_dying); 1455 1456 return; 1457 } 1458 1459 sc->sc_refcnt++; 1460 sc->sc_aclrd_busy = 1; 1461 1462 usbd_setup_xfer(sc->sc_aclrd_xfer, 1463 sc->sc_aclrd_pipe, 1464 sc, 1465 sc->sc_aclrd_buf, 1466 UBT_BUFSIZ_ACL, 1467 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1468 USBD_NO_TIMEOUT, 1469 ubt_recv_acl_complete); 1470 1471 status = usbd_transfer(sc->sc_aclrd_xfer); 1472 1473 KASSERT(status != USBD_NORMAL_COMPLETION); 1474 1475 if (status != USBD_IN_PROGRESS) { 1476 DPRINTF("usbd_transfer status=%s (%d)\n", 1477 usbd_errstr(status), status); 1478 1479 sc->sc_refcnt--; 1480 sc->sc_aclrd_busy = 0; 1481 } 1482 } 1483 1484 static void 1485 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1486 usbd_private_handle h, usbd_status status) 1487 { 1488 struct ubt_softc *sc = h; 1489 struct mbuf *m; 1490 uint32_t count; 1491 void *buf; 1492 1493 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1494 sc, usbd_errstr(status), status); 1495 1496 sc->sc_aclrd_busy = 0; 1497 1498 if (--sc->sc_refcnt < 0) { 1499 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1500 usb_detach_wakeup(sc->sc_dev); 1501 return; 1502 } 1503 1504 if (sc->sc_dying) { 1505 DPRINTF("sc_dying\n"); 1506 return; 1507 } 1508 1509 if (status != USBD_NORMAL_COMPLETION) { 1510 DPRINTF("status=%s (%d)\n", 1511 usbd_errstr(status), status); 1512 1513 sc->sc_stats.err_rx++; 1514 1515 if (status == USBD_STALLED) 1516 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1517 else 1518 return; 1519 } else { 1520 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1521 1522 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1523 DPRINTF("dumped undersized packet (%d)\n", count); 1524 sc->sc_stats.err_rx++; 1525 } else { 1526 sc->sc_stats.acl_rx++; 1527 sc->sc_stats.byte_rx += count; 1528 1529 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1530 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1531 sc->sc_stats.err_rx++; 1532 } 1533 } 1534 1535 /* and restart */ 1536 ubt_recv_acl_start(sc); 1537 } 1538 1539 static void 1540 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1541 { 1542 int i; 1543 1544 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1545 1546 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1547 DPRINTF("%s%s%s\n", 1548 isoc->busy ? " busy" : "", 1549 sc->sc_dying ? " dying" : "", 1550 sc->sc_scord_size == 0 ? " size=0" : ""); 1551 1552 return; 1553 } 1554 1555 sc->sc_refcnt++; 1556 isoc->busy = 1; 1557 1558 for (i = 0 ; i < UBT_NFRAMES ; i++) 1559 isoc->size[i] = sc->sc_scord_size; 1560 1561 usbd_setup_isoc_xfer(isoc->xfer, 1562 sc->sc_scord_pipe, 1563 isoc, 1564 isoc->size, 1565 UBT_NFRAMES, 1566 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1567 ubt_recv_sco_complete); 1568 1569 usbd_transfer(isoc->xfer); 1570 } 1571 1572 static void 1573 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1574 usbd_private_handle h, usbd_status status) 1575 { 1576 struct ubt_isoc_xfer *isoc = h; 1577 struct ubt_softc *sc; 1578 struct mbuf *m; 1579 uint32_t count; 1580 uint8_t *ptr, *frame; 1581 int i, size, got, want; 1582 1583 KASSERT(isoc != NULL); 1584 KASSERT(isoc->xfer == xfer); 1585 1586 sc = isoc->softc; 1587 isoc->busy = 0; 1588 1589 if (--sc->sc_refcnt < 0) { 1590 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1591 usb_detach_wakeup(sc->sc_dev); 1592 return; 1593 } 1594 1595 if (sc->sc_dying) { 1596 DPRINTF("sc_dying\n"); 1597 return; 1598 } 1599 1600 if (status != USBD_NORMAL_COMPLETION) { 1601 DPRINTF("status=%s (%d)\n", 1602 usbd_errstr(status), status); 1603 1604 sc->sc_stats.err_rx++; 1605 1606 if (status == USBD_STALLED) { 1607 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1608 goto restart; 1609 } 1610 1611 return; 1612 } 1613 1614 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1615 if (count == 0) 1616 goto restart; 1617 1618 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1619 sc, isoc, count); 1620 1621 sc->sc_stats.byte_rx += count; 1622 1623 /* 1624 * Extract SCO packets from ISOC frames. The way we have it, 1625 * no SCO packet can be bigger than MHLEN. This is unlikely 1626 * to actually happen, but if we ran out of mbufs and lost 1627 * sync then we may get spurious data that makes it seem that 1628 * way, so we discard data that wont fit. This doesnt really 1629 * help with the lost sync situation alas. 1630 */ 1631 1632 m = sc->sc_scord_mbuf; 1633 if (m != NULL) { 1634 sc->sc_scord_mbuf = NULL; 1635 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1636 got = m->m_pkthdr.len; 1637 want = sizeof(hci_scodata_hdr_t); 1638 if (got >= want) 1639 want += mtod(m, hci_scodata_hdr_t *)->length ; 1640 } else { 1641 ptr = NULL; 1642 got = 0; 1643 want = 0; 1644 } 1645 1646 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1647 frame = isoc->buf + (i * sc->sc_scord_size); 1648 1649 while (isoc->size[i] > 0) { 1650 size = isoc->size[i]; 1651 1652 if (m == NULL) { 1653 MGETHDR(m, M_DONTWAIT, MT_DATA); 1654 if (m == NULL) { 1655 aprint_error_dev(sc->sc_dev, 1656 "out of memory (xfer halted)\n"); 1657 1658 sc->sc_stats.err_rx++; 1659 return; /* lost sync */ 1660 } 1661 1662 ptr = mtod(m, uint8_t *); 1663 *ptr++ = HCI_SCO_DATA_PKT; 1664 got = 1; 1665 want = sizeof(hci_scodata_hdr_t); 1666 } 1667 1668 if (got + size > want) 1669 size = want - got; 1670 1671 if (got + size > MHLEN) 1672 memcpy(ptr, frame, MHLEN - got); 1673 else 1674 memcpy(ptr, frame, size); 1675 1676 ptr += size; 1677 got += size; 1678 frame += size; 1679 1680 if (got == want) { 1681 /* 1682 * If we only got a header, add the packet 1683 * length to our want count. Send complete 1684 * packets up to protocol stack. 1685 */ 1686 if (want == sizeof(hci_scodata_hdr_t)) 1687 want += mtod(m, hci_scodata_hdr_t *)->length; 1688 1689 if (got == want) { 1690 m->m_pkthdr.len = m->m_len = got; 1691 sc->sc_stats.sco_rx++; 1692 if (!hci_input_sco(sc->sc_unit, m)) 1693 sc->sc_stats.err_rx++; 1694 1695 m = NULL; 1696 } 1697 } 1698 1699 isoc->size[i] -= size; 1700 } 1701 } 1702 1703 if (m != NULL) { 1704 m->m_pkthdr.len = m->m_len = got; 1705 sc->sc_scord_mbuf = m; 1706 } 1707 1708 restart: /* and restart */ 1709 ubt_recv_sco_start1(sc, isoc); 1710 } 1711 1712 void 1713 ubt_stats(device_t self, struct bt_stats *dest, int flush) 1714 { 1715 struct ubt_softc *sc = device_private(self); 1716 int s; 1717 1718 s = splusb(); 1719 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1720 1721 if (flush) 1722 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1723 1724 splx(s); 1725 } 1726
Indexes created Thu Oct 02 14:10:14 GMT 2025