ubt.c revision 1.42
1 /* $NetBSD: ubt.c,v 1.42 2011/12/23 00:51:45 jakllsch 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 1.42 2011/12/23 00:51:45 jakllsch 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 #ifdef DIAGNOSTIC 684 if (rd_size > MLEN) { 685 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 686 rd_size); 687 688 return EOVERFLOW; 689 } 690 691 if (wr_size > MLEN) { 692 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 693 wr_size); 694 695 return EOVERFLOW; 696 } 697 #endif 698 699 sc->sc_scord_size = rd_size; 700 sc->sc_scord_addr = rd_addr; 701 702 sc->sc_scowr_size = wr_size; 703 sc->sc_scowr_addr = wr_addr; 704 705 return 0; 706 } 707 708 /* sysctl helper to set alternate configurations */ 709 static int 710 ubt_sysctl_config(SYSCTLFN_ARGS) 711 { 712 struct sysctlnode node; 713 struct ubt_softc *sc; 714 int t, error; 715 716 node = *rnode; 717 sc = node.sysctl_data; 718 719 t = sc->sc_config; 720 node.sysctl_data = &t; 721 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 722 if (error || newp == NULL) 723 return error; 724 725 if (t < 0 || t >= sc->sc_alt_config) 726 return EINVAL; 727 728 /* This may not change when the unit is enabled */ 729 if (sc->sc_enabled) 730 return EBUSY; 731 732 sc->sc_config = t; 733 return ubt_set_isoc_config(sc); 734 } 735 736 static void 737 ubt_abortdealloc(struct ubt_softc *sc) 738 { 739 int i; 740 741 DPRINTFN(1, "sc=%p\n", sc); 742 743 /* Abort all pipes */ 744 usbd_abort_default_pipe(sc->sc_udev); 745 746 if (sc->sc_evt_pipe != NULL) { 747 usbd_abort_pipe(sc->sc_evt_pipe); 748 usbd_close_pipe(sc->sc_evt_pipe); 749 sc->sc_evt_pipe = NULL; 750 } 751 752 if (sc->sc_aclrd_pipe != NULL) { 753 usbd_abort_pipe(sc->sc_aclrd_pipe); 754 usbd_close_pipe(sc->sc_aclrd_pipe); 755 sc->sc_aclrd_pipe = NULL; 756 } 757 758 if (sc->sc_aclwr_pipe != NULL) { 759 usbd_abort_pipe(sc->sc_aclwr_pipe); 760 usbd_close_pipe(sc->sc_aclwr_pipe); 761 sc->sc_aclwr_pipe = NULL; 762 } 763 764 if (sc->sc_scord_pipe != NULL) { 765 usbd_abort_pipe(sc->sc_scord_pipe); 766 usbd_close_pipe(sc->sc_scord_pipe); 767 sc->sc_scord_pipe = NULL; 768 } 769 770 if (sc->sc_scowr_pipe != NULL) { 771 usbd_abort_pipe(sc->sc_scowr_pipe); 772 usbd_close_pipe(sc->sc_scowr_pipe); 773 sc->sc_scowr_pipe = NULL; 774 } 775 776 /* Free event buffer */ 777 if (sc->sc_evt_buf != NULL) { 778 free(sc->sc_evt_buf, M_USBDEV); 779 sc->sc_evt_buf = NULL; 780 } 781 782 /* Free all xfers and xfer buffers (implicit) */ 783 if (sc->sc_cmd_xfer != NULL) { 784 usbd_free_xfer(sc->sc_cmd_xfer); 785 sc->sc_cmd_xfer = NULL; 786 sc->sc_cmd_buf = NULL; 787 } 788 789 if (sc->sc_aclrd_xfer != NULL) { 790 usbd_free_xfer(sc->sc_aclrd_xfer); 791 sc->sc_aclrd_xfer = NULL; 792 sc->sc_aclrd_buf = NULL; 793 } 794 795 if (sc->sc_aclwr_xfer != NULL) { 796 usbd_free_xfer(sc->sc_aclwr_xfer); 797 sc->sc_aclwr_xfer = NULL; 798 sc->sc_aclwr_buf = NULL; 799 } 800 801 for (i = 0 ; i < UBT_NXFERS ; i++) { 802 if (sc->sc_scord[i].xfer != NULL) { 803 usbd_free_xfer(sc->sc_scord[i].xfer); 804 sc->sc_scord[i].xfer = NULL; 805 sc->sc_scord[i].buf = NULL; 806 } 807 808 if (sc->sc_scowr[i].xfer != NULL) { 809 usbd_free_xfer(sc->sc_scowr[i].xfer); 810 sc->sc_scowr[i].xfer = NULL; 811 sc->sc_scowr[i].buf = NULL; 812 } 813 } 814 815 /* Free partial SCO packets */ 816 if (sc->sc_scord_mbuf != NULL) { 817 m_freem(sc->sc_scord_mbuf); 818 sc->sc_scord_mbuf = NULL; 819 } 820 821 if (sc->sc_scowr_mbuf != NULL) { 822 m_freem(sc->sc_scowr_mbuf); 823 sc->sc_scowr_mbuf = NULL; 824 } 825 826 /* Empty mbuf queues */ 827 MBUFQ_DRAIN(&sc->sc_cmd_queue); 828 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 829 MBUFQ_DRAIN(&sc->sc_scowr_queue); 830 } 831 832 /******************************************************************************* 833 * 834 * Bluetooth Unit/USB callbacks 835 * 836 */ 837 static int 838 ubt_enable(device_t self) 839 { 840 struct ubt_softc *sc = device_private(self); 841 usbd_status err; 842 int s, i, error; 843 844 DPRINTFN(1, "sc=%p\n", sc); 845 846 if (sc->sc_enabled) 847 return 0; 848 849 s = splusb(); 850 851 /* Events */ 852 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 853 if (sc->sc_evt_buf == NULL) { 854 error = ENOMEM; 855 goto bad; 856 } 857 err = usbd_open_pipe_intr(sc->sc_iface0, 858 sc->sc_evt_addr, 859 USBD_SHORT_XFER_OK, 860 &sc->sc_evt_pipe, 861 sc, 862 sc->sc_evt_buf, 863 UBT_BUFSIZ_EVENT, 864 ubt_recv_event, 865 USBD_DEFAULT_INTERVAL); 866 if (err != USBD_NORMAL_COMPLETION) { 867 error = EIO; 868 goto bad; 869 } 870 871 /* Commands */ 872 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 873 if (sc->sc_cmd_xfer == NULL) { 874 error = ENOMEM; 875 goto bad; 876 } 877 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 878 if (sc->sc_cmd_buf == NULL) { 879 error = ENOMEM; 880 goto bad; 881 } 882 sc->sc_cmd_busy = 0; 883 884 /* ACL read */ 885 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 886 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 887 if (err != USBD_NORMAL_COMPLETION) { 888 error = EIO; 889 goto bad; 890 } 891 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 892 if (sc->sc_aclrd_xfer == NULL) { 893 error = ENOMEM; 894 goto bad; 895 } 896 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 897 if (sc->sc_aclrd_buf == NULL) { 898 error = ENOMEM; 899 goto bad; 900 } 901 sc->sc_aclrd_busy = 0; 902 ubt_recv_acl_start(sc); 903 904 /* ACL write */ 905 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 906 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 907 if (err != USBD_NORMAL_COMPLETION) { 908 error = EIO; 909 goto bad; 910 } 911 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 912 if (sc->sc_aclwr_xfer == NULL) { 913 error = ENOMEM; 914 goto bad; 915 } 916 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 917 if (sc->sc_aclwr_buf == NULL) { 918 error = ENOMEM; 919 goto bad; 920 } 921 sc->sc_aclwr_busy = 0; 922 923 /* SCO read */ 924 if (sc->sc_scord_size > 0) { 925 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 926 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 927 if (err != USBD_NORMAL_COMPLETION) { 928 error = EIO; 929 goto bad; 930 } 931 932 for (i = 0 ; i < UBT_NXFERS ; i++) { 933 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 934 if (sc->sc_scord[i].xfer == NULL) { 935 error = ENOMEM; 936 goto bad; 937 } 938 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 939 sc->sc_scord_size * UBT_NFRAMES); 940 if (sc->sc_scord[i].buf == NULL) { 941 error = ENOMEM; 942 goto bad; 943 } 944 sc->sc_scord[i].softc = sc; 945 sc->sc_scord[i].busy = 0; 946 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 947 } 948 } 949 950 /* SCO write */ 951 if (sc->sc_scowr_size > 0) { 952 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 953 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 954 if (err != USBD_NORMAL_COMPLETION) { 955 error = EIO; 956 goto bad; 957 } 958 959 for (i = 0 ; i < UBT_NXFERS ; i++) { 960 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 961 if (sc->sc_scowr[i].xfer == NULL) { 962 error = ENOMEM; 963 goto bad; 964 } 965 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 966 sc->sc_scowr_size * UBT_NFRAMES); 967 if (sc->sc_scowr[i].buf == NULL) { 968 error = ENOMEM; 969 goto bad; 970 } 971 sc->sc_scowr[i].softc = sc; 972 sc->sc_scowr[i].busy = 0; 973 } 974 975 sc->sc_scowr_busy = 0; 976 } 977 978 sc->sc_enabled = 1; 979 splx(s); 980 return 0; 981 982 bad: 983 ubt_abortdealloc(sc); 984 splx(s); 985 return error; 986 } 987 988 static void 989 ubt_disable(device_t self) 990 { 991 struct ubt_softc *sc = device_private(self); 992 int s; 993 994 DPRINTFN(1, "sc=%p\n", sc); 995 996 if (sc->sc_enabled == 0) 997 return; 998 999 s = splusb(); 1000 ubt_abortdealloc(sc); 1001 1002 sc->sc_enabled = 0; 1003 splx(s); 1004 } 1005 1006 static void 1007 ubt_xmit_cmd(device_t self, struct mbuf *m) 1008 { 1009 struct ubt_softc *sc = device_private(self); 1010 int s; 1011 1012 KASSERT(sc->sc_enabled); 1013 1014 s = splusb(); 1015 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1016 1017 if (sc->sc_cmd_busy == 0) 1018 ubt_xmit_cmd_start(sc); 1019 1020 splx(s); 1021 } 1022 1023 static void 1024 ubt_xmit_cmd_start(struct ubt_softc *sc) 1025 { 1026 usb_device_request_t req; 1027 usbd_status status; 1028 struct mbuf *m; 1029 int len; 1030 1031 if (sc->sc_dying) 1032 return; 1033 1034 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1035 return; 1036 1037 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1038 KASSERT(m != NULL); 1039 1040 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1041 device_xname(sc->sc_dev), m->m_pkthdr.len); 1042 1043 sc->sc_refcnt++; 1044 sc->sc_cmd_busy = 1; 1045 1046 len = m->m_pkthdr.len - 1; 1047 m_copydata(m, 1, len, sc->sc_cmd_buf); 1048 m_freem(m); 1049 1050 memset(&req, 0, sizeof(req)); 1051 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1052 USETW(req.wLength, len); 1053 1054 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1055 sc->sc_udev, 1056 sc, 1057 UBT_CMD_TIMEOUT, 1058 &req, 1059 sc->sc_cmd_buf, 1060 len, 1061 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1062 ubt_xmit_cmd_complete); 1063 1064 status = usbd_transfer(sc->sc_cmd_xfer); 1065 1066 KASSERT(status != USBD_NORMAL_COMPLETION); 1067 1068 if (status != USBD_IN_PROGRESS) { 1069 DPRINTF("usbd_transfer status=%s (%d)\n", 1070 usbd_errstr(status), status); 1071 1072 sc->sc_refcnt--; 1073 sc->sc_cmd_busy = 0; 1074 } 1075 } 1076 1077 static void 1078 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1079 usbd_private_handle h, usbd_status status) 1080 { 1081 struct ubt_softc *sc = h; 1082 uint32_t count; 1083 1084 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1085 device_xname(sc->sc_dev), usbd_errstr(status), status); 1086 1087 sc->sc_cmd_busy = 0; 1088 1089 if (--sc->sc_refcnt < 0) { 1090 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1091 usb_detach_wakeup(sc->sc_dev); 1092 return; 1093 } 1094 1095 if (sc->sc_dying) { 1096 DPRINTF("sc_dying\n"); 1097 return; 1098 } 1099 1100 if (status != USBD_NORMAL_COMPLETION) { 1101 DPRINTF("status=%s (%d)\n", 1102 usbd_errstr(status), status); 1103 1104 sc->sc_stats.err_tx++; 1105 return; 1106 } 1107 1108 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1109 sc->sc_stats.cmd_tx++; 1110 sc->sc_stats.byte_tx += count; 1111 1112 ubt_xmit_cmd_start(sc); 1113 } 1114 1115 static void 1116 ubt_xmit_acl(device_t self, struct mbuf *m) 1117 { 1118 struct ubt_softc *sc = device_private(self); 1119 int s; 1120 1121 KASSERT(sc->sc_enabled); 1122 1123 s = splusb(); 1124 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1125 1126 if (sc->sc_aclwr_busy == 0) 1127 ubt_xmit_acl_start(sc); 1128 1129 splx(s); 1130 } 1131 1132 static void 1133 ubt_xmit_acl_start(struct ubt_softc *sc) 1134 { 1135 struct mbuf *m; 1136 usbd_status status; 1137 int len; 1138 1139 if (sc->sc_dying) 1140 return; 1141 1142 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1143 return; 1144 1145 sc->sc_refcnt++; 1146 sc->sc_aclwr_busy = 1; 1147 1148 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1149 KASSERT(m != NULL); 1150 1151 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1152 device_xname(sc->sc_dev), m->m_pkthdr.len); 1153 1154 len = m->m_pkthdr.len - 1; 1155 if (len > UBT_BUFSIZ_ACL) { 1156 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1157 device_xname(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1158 1159 len = UBT_BUFSIZ_ACL; 1160 } 1161 1162 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1163 m_freem(m); 1164 1165 sc->sc_stats.acl_tx++; 1166 sc->sc_stats.byte_tx += len; 1167 1168 usbd_setup_xfer(sc->sc_aclwr_xfer, 1169 sc->sc_aclwr_pipe, 1170 sc, 1171 sc->sc_aclwr_buf, 1172 len, 1173 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1174 UBT_ACL_TIMEOUT, 1175 ubt_xmit_acl_complete); 1176 1177 status = usbd_transfer(sc->sc_aclwr_xfer); 1178 1179 KASSERT(status != USBD_NORMAL_COMPLETION); 1180 1181 if (status != USBD_IN_PROGRESS) { 1182 DPRINTF("usbd_transfer status=%s (%d)\n", 1183 usbd_errstr(status), status); 1184 1185 sc->sc_refcnt--; 1186 sc->sc_aclwr_busy = 0; 1187 } 1188 } 1189 1190 static void 1191 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1192 usbd_private_handle h, usbd_status status) 1193 { 1194 struct ubt_softc *sc = h; 1195 1196 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1197 device_xname(sc->sc_dev), usbd_errstr(status), status); 1198 1199 sc->sc_aclwr_busy = 0; 1200 1201 if (--sc->sc_refcnt < 0) { 1202 usb_detach_wakeup(sc->sc_dev); 1203 return; 1204 } 1205 1206 if (sc->sc_dying) 1207 return; 1208 1209 if (status != USBD_NORMAL_COMPLETION) { 1210 DPRINTF("status=%s (%d)\n", 1211 usbd_errstr(status), status); 1212 1213 sc->sc_stats.err_tx++; 1214 1215 if (status == USBD_STALLED) 1216 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1217 else 1218 return; 1219 } 1220 1221 ubt_xmit_acl_start(sc); 1222 } 1223 1224 static void 1225 ubt_xmit_sco(device_t self, struct mbuf *m) 1226 { 1227 struct ubt_softc *sc = device_private(self); 1228 int s; 1229 1230 KASSERT(sc->sc_enabled); 1231 1232 s = splusb(); 1233 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1234 1235 if (sc->sc_scowr_busy == 0) 1236 ubt_xmit_sco_start(sc); 1237 1238 splx(s); 1239 } 1240 1241 static void 1242 ubt_xmit_sco_start(struct ubt_softc *sc) 1243 { 1244 int i; 1245 1246 if (sc->sc_dying || sc->sc_scowr_size == 0) 1247 return; 1248 1249 for (i = 0 ; i < UBT_NXFERS ; i++) { 1250 if (sc->sc_scowr[i].busy) 1251 continue; 1252 1253 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1254 } 1255 } 1256 1257 static void 1258 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1259 { 1260 struct mbuf *m; 1261 uint8_t *buf; 1262 int num, len, size, space; 1263 1264 space = sc->sc_scowr_size * UBT_NFRAMES; 1265 buf = isoc->buf; 1266 len = 0; 1267 1268 /* 1269 * Fill the request buffer with data from the queue, 1270 * keeping any leftover packet on our private hook. 1271 * 1272 * Complete packets are passed back up to the stack 1273 * for disposal, since we can't rely on the controller 1274 * to tell us when it has finished with them. 1275 */ 1276 1277 m = sc->sc_scowr_mbuf; 1278 while (space > 0) { 1279 if (m == NULL) { 1280 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1281 if (m == NULL) 1282 break; 1283 1284 m_adj(m, 1); /* packet type */ 1285 } 1286 1287 if (m->m_pkthdr.len > 0) { 1288 size = MIN(m->m_pkthdr.len, space); 1289 1290 m_copydata(m, 0, size, buf); 1291 m_adj(m, size); 1292 1293 buf += size; 1294 len += size; 1295 space -= size; 1296 } 1297 1298 if (m->m_pkthdr.len == 0) { 1299 sc->sc_stats.sco_tx++; 1300 if (!hci_complete_sco(sc->sc_unit, m)) 1301 sc->sc_stats.err_tx++; 1302 1303 m = NULL; 1304 } 1305 } 1306 sc->sc_scowr_mbuf = m; 1307 1308 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1309 1310 if (len == 0) /* nothing to send */ 1311 return; 1312 1313 sc->sc_refcnt++; 1314 sc->sc_scowr_busy = 1; 1315 sc->sc_stats.byte_tx += len; 1316 isoc->busy = 1; 1317 1318 /* 1319 * calculate number of isoc frames and sizes 1320 */ 1321 1322 for (num = 0 ; len > 0 ; num++) { 1323 size = MIN(sc->sc_scowr_size, len); 1324 1325 isoc->size[num] = size; 1326 len -= size; 1327 } 1328 1329 usbd_setup_isoc_xfer(isoc->xfer, 1330 sc->sc_scowr_pipe, 1331 isoc, 1332 isoc->size, 1333 num, 1334 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1335 ubt_xmit_sco_complete); 1336 1337 usbd_transfer(isoc->xfer); 1338 } 1339 1340 static void 1341 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1342 usbd_private_handle h, usbd_status status) 1343 { 1344 struct ubt_isoc_xfer *isoc = h; 1345 struct ubt_softc *sc; 1346 int i; 1347 1348 KASSERT(xfer == isoc->xfer); 1349 sc = isoc->softc; 1350 1351 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1352 isoc, usbd_errstr(status), status); 1353 1354 isoc->busy = 0; 1355 1356 for (i = 0 ; ; i++) { 1357 if (i == UBT_NXFERS) { 1358 sc->sc_scowr_busy = 0; 1359 break; 1360 } 1361 1362 if (sc->sc_scowr[i].busy) 1363 break; 1364 } 1365 1366 if (--sc->sc_refcnt < 0) { 1367 usb_detach_wakeup(sc->sc_dev); 1368 return; 1369 } 1370 1371 if (sc->sc_dying) 1372 return; 1373 1374 if (status != USBD_NORMAL_COMPLETION) { 1375 DPRINTF("status=%s (%d)\n", 1376 usbd_errstr(status), status); 1377 1378 sc->sc_stats.err_tx++; 1379 1380 if (status == USBD_STALLED) 1381 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1382 else 1383 return; 1384 } 1385 1386 ubt_xmit_sco_start(sc); 1387 } 1388 1389 /* 1390 * load incoming data into an mbuf with 1391 * leading type byte 1392 */ 1393 static struct mbuf * 1394 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1395 { 1396 struct mbuf *m; 1397 1398 MGETHDR(m, M_DONTWAIT, MT_DATA); 1399 if (m == NULL) 1400 return NULL; 1401 1402 *mtod(m, uint8_t *) = type; 1403 m->m_pkthdr.len = m->m_len = MHLEN; 1404 m_copyback(m, 1, count, buf); // (extends if necessary) 1405 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1406 m_free(m); 1407 return NULL; 1408 } 1409 1410 m->m_pkthdr.len = count + 1; 1411 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1412 1413 return m; 1414 } 1415 1416 static void 1417 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1418 { 1419 struct ubt_softc *sc = h; 1420 struct mbuf *m; 1421 uint32_t count; 1422 void *buf; 1423 1424 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1425 sc, usbd_errstr(status), status); 1426 1427 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1428 return; 1429 1430 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1431 1432 if (count < sizeof(hci_event_hdr_t) - 1) { 1433 DPRINTF("dumped undersized event (count = %d)\n", count); 1434 sc->sc_stats.err_rx++; 1435 return; 1436 } 1437 1438 sc->sc_stats.evt_rx++; 1439 sc->sc_stats.byte_rx += count; 1440 1441 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1442 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1443 sc->sc_stats.err_rx++; 1444 } 1445 1446 static void 1447 ubt_recv_acl_start(struct ubt_softc *sc) 1448 { 1449 usbd_status status; 1450 1451 DPRINTFN(15, "sc=%p\n", sc); 1452 1453 if (sc->sc_aclrd_busy || sc->sc_dying) { 1454 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1455 sc->sc_aclrd_busy, 1456 sc->sc_dying); 1457 1458 return; 1459 } 1460 1461 sc->sc_refcnt++; 1462 sc->sc_aclrd_busy = 1; 1463 1464 usbd_setup_xfer(sc->sc_aclrd_xfer, 1465 sc->sc_aclrd_pipe, 1466 sc, 1467 sc->sc_aclrd_buf, 1468 UBT_BUFSIZ_ACL, 1469 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1470 USBD_NO_TIMEOUT, 1471 ubt_recv_acl_complete); 1472 1473 status = usbd_transfer(sc->sc_aclrd_xfer); 1474 1475 KASSERT(status != USBD_NORMAL_COMPLETION); 1476 1477 if (status != USBD_IN_PROGRESS) { 1478 DPRINTF("usbd_transfer status=%s (%d)\n", 1479 usbd_errstr(status), status); 1480 1481 sc->sc_refcnt--; 1482 sc->sc_aclrd_busy = 0; 1483 } 1484 } 1485 1486 static void 1487 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1488 usbd_private_handle h, usbd_status status) 1489 { 1490 struct ubt_softc *sc = h; 1491 struct mbuf *m; 1492 uint32_t count; 1493 void *buf; 1494 1495 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1496 sc, usbd_errstr(status), status); 1497 1498 sc->sc_aclrd_busy = 0; 1499 1500 if (--sc->sc_refcnt < 0) { 1501 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1502 usb_detach_wakeup(sc->sc_dev); 1503 return; 1504 } 1505 1506 if (sc->sc_dying) { 1507 DPRINTF("sc_dying\n"); 1508 return; 1509 } 1510 1511 if (status != USBD_NORMAL_COMPLETION) { 1512 DPRINTF("status=%s (%d)\n", 1513 usbd_errstr(status), status); 1514 1515 sc->sc_stats.err_rx++; 1516 1517 if (status == USBD_STALLED) 1518 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1519 else 1520 return; 1521 } else { 1522 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1523 1524 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1525 DPRINTF("dumped undersized packet (%d)\n", count); 1526 sc->sc_stats.err_rx++; 1527 } else { 1528 sc->sc_stats.acl_rx++; 1529 sc->sc_stats.byte_rx += count; 1530 1531 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1532 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1533 sc->sc_stats.err_rx++; 1534 } 1535 } 1536 1537 /* and restart */ 1538 ubt_recv_acl_start(sc); 1539 } 1540 1541 static void 1542 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1543 { 1544 int i; 1545 1546 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1547 1548 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1549 DPRINTF("%s%s%s\n", 1550 isoc->busy ? " busy" : "", 1551 sc->sc_dying ? " dying" : "", 1552 sc->sc_scord_size == 0 ? " size=0" : ""); 1553 1554 return; 1555 } 1556 1557 sc->sc_refcnt++; 1558 isoc->busy = 1; 1559 1560 for (i = 0 ; i < UBT_NFRAMES ; i++) 1561 isoc->size[i] = sc->sc_scord_size; 1562 1563 usbd_setup_isoc_xfer(isoc->xfer, 1564 sc->sc_scord_pipe, 1565 isoc, 1566 isoc->size, 1567 UBT_NFRAMES, 1568 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1569 ubt_recv_sco_complete); 1570 1571 usbd_transfer(isoc->xfer); 1572 } 1573 1574 static void 1575 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1576 usbd_private_handle h, usbd_status status) 1577 { 1578 struct ubt_isoc_xfer *isoc = h; 1579 struct ubt_softc *sc; 1580 struct mbuf *m; 1581 uint32_t count; 1582 uint8_t *ptr, *frame; 1583 int i, size, got, want; 1584 1585 KASSERT(isoc != NULL); 1586 KASSERT(isoc->xfer == xfer); 1587 1588 sc = isoc->softc; 1589 isoc->busy = 0; 1590 1591 if (--sc->sc_refcnt < 0) { 1592 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1593 usb_detach_wakeup(sc->sc_dev); 1594 return; 1595 } 1596 1597 if (sc->sc_dying) { 1598 DPRINTF("sc_dying\n"); 1599 return; 1600 } 1601 1602 if (status != USBD_NORMAL_COMPLETION) { 1603 DPRINTF("status=%s (%d)\n", 1604 usbd_errstr(status), status); 1605 1606 sc->sc_stats.err_rx++; 1607 1608 if (status == USBD_STALLED) { 1609 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1610 goto restart; 1611 } 1612 1613 return; 1614 } 1615 1616 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1617 if (count == 0) 1618 goto restart; 1619 1620 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1621 sc, isoc, count); 1622 1623 sc->sc_stats.byte_rx += count; 1624 1625 /* 1626 * Extract SCO packets from ISOC frames. The way we have it, 1627 * no SCO packet can be bigger than MHLEN. This is unlikely 1628 * to actually happen, but if we ran out of mbufs and lost 1629 * sync then we may get spurious data that makes it seem that 1630 * way, so we discard data that wont fit. This doesnt really 1631 * help with the lost sync situation alas. 1632 */ 1633 1634 m = sc->sc_scord_mbuf; 1635 if (m != NULL) { 1636 sc->sc_scord_mbuf = NULL; 1637 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1638 got = m->m_pkthdr.len; 1639 want = sizeof(hci_scodata_hdr_t); 1640 if (got >= want) 1641 want += mtod(m, hci_scodata_hdr_t *)->length ; 1642 } else { 1643 ptr = NULL; 1644 got = 0; 1645 want = 0; 1646 } 1647 1648 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1649 frame = isoc->buf + (i * sc->sc_scord_size); 1650 1651 while (isoc->size[i] > 0) { 1652 size = isoc->size[i]; 1653 1654 if (m == NULL) { 1655 MGETHDR(m, M_DONTWAIT, MT_DATA); 1656 if (m == NULL) { 1657 aprint_error_dev(sc->sc_dev, 1658 "out of memory (xfer halted)\n"); 1659 1660 sc->sc_stats.err_rx++; 1661 return; /* lost sync */ 1662 } 1663 1664 ptr = mtod(m, uint8_t *); 1665 *ptr++ = HCI_SCO_DATA_PKT; 1666 got = 1; 1667 want = sizeof(hci_scodata_hdr_t); 1668 } 1669 1670 if (got + size > want) 1671 size = want - got; 1672 1673 if (got + size > MHLEN) 1674 memcpy(ptr, frame, MHLEN - got); 1675 else 1676 memcpy(ptr, frame, size); 1677 1678 ptr += size; 1679 got += size; 1680 frame += size; 1681 1682 if (got == want) { 1683 /* 1684 * If we only got a header, add the packet 1685 * length to our want count. Send complete 1686 * packets up to protocol stack. 1687 */ 1688 if (want == sizeof(hci_scodata_hdr_t)) 1689 want += mtod(m, hci_scodata_hdr_t *)->length; 1690 1691 if (got == want) { 1692 m->m_pkthdr.len = m->m_len = got; 1693 sc->sc_stats.sco_rx++; 1694 if (!hci_input_sco(sc->sc_unit, m)) 1695 sc->sc_stats.err_rx++; 1696 1697 m = NULL; 1698 } 1699 } 1700 1701 isoc->size[i] -= size; 1702 } 1703 } 1704 1705 if (m != NULL) { 1706 m->m_pkthdr.len = m->m_len = got; 1707 sc->sc_scord_mbuf = m; 1708 } 1709 1710 restart: /* and restart */ 1711 ubt_recv_sco_start1(sc, isoc); 1712 } 1713 1714 void 1715 ubt_stats(device_t self, struct bt_stats *dest, int flush) 1716 { 1717 struct ubt_softc *sc = device_private(self); 1718 int s; 1719 1720 s = splusb(); 1721 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1722 1723 if (flush) 1724 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1725 1726 splx(s); 1727 } 1728
Indexes created Thu Sep 25 16:09:42 GMT 2025