ubt.c revision 1.22
1 /* $NetBSD: ubt.c,v 1.22 2006/12/21 15:55:25 yamt 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 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the NetBSD 52 * Foundation, Inc. and its contributors. 53 * 4. Neither the name of The NetBSD Foundation nor the names of its 54 * contributors may be used to endorse or promote products derived 55 * from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 58 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 59 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 60 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 61 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 62 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 63 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 64 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 65 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 66 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 67 * POSSIBILITY OF SUCH DAMAGE. 68 */ 69 /* 70 * This driver originally written by Lennart Augustsson and David Sainty, 71 * but was mostly rewritten for the NetBSD Bluetooth protocol stack by 72 * Iain Hibbert for Itronix, Inc using the FreeBSD ng_ubt.c driver as a 73 * reference. 74 */ 75 76 #include <sys/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: ubt.c,v 1.22 2006/12/21 15:55:25 yamt Exp $"); 78 79 #include <sys/param.h> 80 #include <sys/device.h> 81 #include <sys/ioctl.h> 82 #include <sys/kernel.h> 83 #include <sys/malloc.h> 84 #include <sys/mbuf.h> 85 #include <sys/proc.h> 86 #include <sys/sysctl.h> 87 #include <sys/systm.h> 88 89 #include <dev/usb/usb.h> 90 #include <dev/usb/usbdi.h> 91 #include <dev/usb/usbdi_util.h> 92 #include <dev/usb/usbdevs.h> 93 94 #include <netbt/bluetooth.h> 95 #include <netbt/hci.h> 96 97 /******************************************************************************* 98 * 99 * debugging stuff 100 */ 101 #undef DPRINTF 102 #undef DPRINTFN 103 104 #ifdef UBT_DEBUG 105 int ubt_debug = UBT_DEBUG; 106 107 #define DPRINTF(fmt, args...) do { \ 108 if (ubt_debug) \ 109 printf("%s: "fmt, __func__ , ##args); \ 110 } while (/* CONSTCOND */0) 111 112 #define DPRINTFN(n, fmt, args...) do { \ 113 if (ubt_debug > (n)) \ 114 printf("%s: "fmt, __func__ , ##args); \ 115 } while (/* CONSTCOND */0) 116 117 SYSCTL_SETUP(sysctl_hw_ubt_debug_setup, "sysctl hw.ubt_debug setup") 118 { 119 120 sysctl_createv(NULL, 0, NULL, NULL, 121 CTLFLAG_PERMANENT, 122 CTLTYPE_NODE, "hw", 123 NULL, 124 NULL, 0, 125 NULL, 0, 126 CTL_HW, CTL_EOL); 127 128 sysctl_createv(NULL, 0, NULL, NULL, 129 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 130 CTLTYPE_INT, "ubt_debug", 131 SYSCTL_DESCR("ubt debug level"), 132 NULL, 0, 133 &ubt_debug, sizeof(ubt_debug), 134 CTL_HW, CTL_CREATE, CTL_EOL); 135 } 136 #else 137 #define DPRINTF(...) 138 #define DPRINTFN(...) 139 #endif 140 141 /******************************************************************************* 142 * 143 * ubt softc structure 144 * 145 */ 146 147 /* buffer sizes */ 148 /* 149 * NB: although ACL packets can extend to 65535 bytes, most devices 150 * have max_acl_size at much less (largest I have seen is 384) 151 */ 152 #define UBT_BUFSIZ_CMD (HCI_CMD_PKT_SIZE - 1) 153 #define UBT_BUFSIZ_ACL (2048 - 1) 154 #define UBT_BUFSIZ_EVENT (HCI_EVENT_PKT_SIZE - 1) 155 156 /* Transmit timeouts */ 157 #define UBT_CMD_TIMEOUT USBD_DEFAULT_TIMEOUT 158 #define UBT_ACL_TIMEOUT USBD_DEFAULT_TIMEOUT 159 160 /* 161 * ISOC transfers 162 * 163 * xfer buffer size depends on the frame size, and the number 164 * of frames per transfer is fixed, as each frame should be 165 * 1ms worth of data. This keeps the rate that xfers complete 166 * fairly constant. We use multiple xfers to keep the hardware 167 * busy 168 */ 169 #define UBT_NXFERS 3 /* max xfers to queue */ 170 #define UBT_NFRAMES 10 /* frames per xfer */ 171 172 struct ubt_isoc_xfer { 173 struct ubt_softc *softc; 174 usbd_xfer_handle xfer; 175 uint8_t *buf; 176 uint16_t size[UBT_NFRAMES]; 177 int busy; 178 }; 179 180 struct ubt_softc { 181 USBBASEDEVICE sc_dev; 182 usbd_device_handle sc_udev; 183 int sc_refcnt; 184 int sc_dying; 185 186 /* Control Interface */ 187 usbd_interface_handle sc_iface0; 188 189 /* Commands (control) */ 190 usbd_xfer_handle sc_cmd_xfer; 191 uint8_t *sc_cmd_buf; 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 */ 210 211 /* ISOC interface */ 212 usbd_interface_handle sc_iface1; /* ISOC interface */ 213 struct sysctllog *sc_log; /* sysctl log */ 214 int sc_config; /* current config no */ 215 int sc_alt_config; /* no of alternates */ 216 217 /* SCO data (in) */ 218 int sc_scord_addr; /* endpoint address */ 219 usbd_pipe_handle sc_scord_pipe; /* read pipe */ 220 int sc_scord_size; /* frame length */ 221 struct ubt_isoc_xfer sc_scord[UBT_NXFERS]; 222 struct mbuf *sc_scord_mbuf; /* current packet */ 223 224 /* SCO data (out) */ 225 int sc_scowr_addr; /* endpoint address */ 226 usbd_pipe_handle sc_scowr_pipe; /* write pipe */ 227 int sc_scowr_size; /* frame length */ 228 struct ubt_isoc_xfer sc_scowr[UBT_NXFERS]; 229 struct mbuf *sc_scowr_mbuf; /* current packet */ 230 231 /* Protocol structure */ 232 struct hci_unit sc_unit; 233 }; 234 235 /******************************************************************************* 236 * 237 * Bluetooth unit/USB callback routines 238 * 239 */ 240 static int ubt_enable(struct hci_unit *); 241 static void ubt_disable(struct hci_unit *); 242 243 static void ubt_xmit_cmd_start(struct hci_unit *); 244 static void ubt_xmit_cmd_complete(usbd_xfer_handle, 245 usbd_private_handle, usbd_status); 246 247 static void ubt_xmit_acl_start(struct hci_unit *); 248 static void ubt_xmit_acl_complete(usbd_xfer_handle, 249 usbd_private_handle, usbd_status); 250 251 static void ubt_xmit_sco_start(struct hci_unit *); 252 static void ubt_xmit_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 253 static void ubt_xmit_sco_complete(usbd_xfer_handle, 254 usbd_private_handle, usbd_status); 255 256 static void ubt_recv_event(usbd_xfer_handle, 257 usbd_private_handle, usbd_status); 258 259 static void ubt_recv_acl_start(struct ubt_softc *); 260 static void ubt_recv_acl_complete(usbd_xfer_handle, 261 usbd_private_handle, usbd_status); 262 263 static void ubt_recv_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 264 static void ubt_recv_sco_complete(usbd_xfer_handle, 265 usbd_private_handle, usbd_status); 266 267 268 /******************************************************************************* 269 * 270 * USB Autoconfig stuff 271 * 272 */ 273 274 USB_DECLARE_DRIVER(ubt); 275 276 static int ubt_set_isoc_config(struct ubt_softc *); 277 static int ubt_sysctl_config(SYSCTLFN_PROTO); 278 static void ubt_abortdealloc(struct ubt_softc *); 279 280 /* 281 * If a device should be ignored then add 282 * 283 * { VendorID, ProductID } 284 * 285 * to this list. 286 */ 287 static const struct usb_devno ubt_ignore[] = { 288 { USB_VENDOR_BROADCOM, USB_PRODUCT_BROADCOM_BCM2033NF }, 289 { 0, 0 } /* end of list */ 290 }; 291 292 USB_MATCH(ubt) 293 { 294 USB_MATCH_START(ubt, uaa); 295 usb_interface_descriptor_t *id; 296 297 DPRINTFN(50, "ubt_match\n"); 298 299 if (uaa->iface == NULL) 300 return UMATCH_NONE; 301 302 if (usb_lookup(ubt_ignore, uaa->vendor, uaa->product)) 303 return UMATCH_NONE; 304 305 id = usbd_get_interface_descriptor(uaa->iface); 306 if (id != NULL 307 && id->bInterfaceClass == UICLASS_WIRELESS 308 && id->bInterfaceSubClass == UISUBCLASS_RF 309 && id->bInterfaceProtocol == UIPROTO_BLUETOOTH) 310 return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 311 312 return UMATCH_NONE; 313 } 314 315 USB_ATTACH(ubt) 316 { 317 USB_ATTACH_START(ubt, sc, uaa); 318 usbd_interface_handle iface; 319 usb_config_descriptor_t *cd; 320 usb_endpoint_descriptor_t *ed; 321 const struct sysctlnode *node; 322 char *devinfop; 323 int err; 324 uint8_t count, i; 325 326 DPRINTFN(50, "ubt_attach: sc=%p\n", sc); 327 328 sc->sc_udev = uaa->device; 329 330 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 331 USB_ATTACH_SETUP; 332 aprint_normal("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop); 333 usbd_devinfo_free(devinfop); 334 335 /* 336 * We must have at least 2 interfaces. 337 */ 338 if (uaa->nifaces < 2) { 339 aprint_error("%s: need 2 interfaces (got %d)\n", 340 USBDEVNAME(sc->sc_dev), uaa->nifaces); 341 342 USB_ATTACH_ERROR_RETURN; 343 } 344 345 /* 346 * Interface 0 must have 3 endpoints 347 * 1) Interrupt endpoint to receive HCI events 348 * 2) Bulk IN endpoint to receive ACL data 349 * 3) Bulk OUT endpoint to send ACL data 350 */ 351 err = usbd_device2interface_handle(sc->sc_udev, 0, &iface); 352 if (err) { 353 aprint_error("%s: Could not get interface 0 handle %s (%d)\n", 354 USBDEVNAME(sc->sc_dev), usbd_errstr(err), err); 355 356 USB_ATTACH_ERROR_RETURN; 357 } 358 359 sc->sc_evt_addr = -1; 360 sc->sc_aclrd_addr = -1; 361 sc->sc_aclwr_addr = -1; 362 363 count = 0; 364 (void)usbd_endpoint_count(iface, &count); 365 366 for (i = 0 ; i < count ; i++) { 367 int dir, type; 368 369 ed = usbd_interface2endpoint_descriptor(iface, i); 370 if (ed == NULL) { 371 aprint_error("%s: could not read endpoint descriptor %d\n", 372 USBDEVNAME(sc->sc_dev), i); 373 374 USB_ATTACH_ERROR_RETURN; 375 } 376 377 dir = UE_GET_DIR(ed->bEndpointAddress); 378 type = UE_GET_XFERTYPE(ed->bmAttributes); 379 380 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 381 sc->sc_evt_addr = ed->bEndpointAddress; 382 else if (dir == UE_DIR_IN && type == UE_BULK) 383 sc->sc_aclrd_addr = ed->bEndpointAddress; 384 else if (dir == UE_DIR_OUT && type == UE_BULK) 385 sc->sc_aclwr_addr = ed->bEndpointAddress; 386 } 387 388 if (sc->sc_evt_addr == -1) { 389 aprint_error("%s: missing INTERRUPT endpoint on interface 0\n", 390 USBDEVNAME(sc->sc_dev)); 391 392 USB_ATTACH_ERROR_RETURN; 393 } 394 if (sc->sc_aclrd_addr == -1) { 395 aprint_error("%s: missing BULK IN endpoint on interface 0\n", 396 USBDEVNAME(sc->sc_dev)); 397 398 USB_ATTACH_ERROR_RETURN; 399 } 400 if (sc->sc_aclwr_addr == -1) { 401 aprint_error("%s: missing BULK OUT endpoint on interface 0\n", 402 USBDEVNAME(sc->sc_dev)); 403 404 USB_ATTACH_ERROR_RETURN; 405 } 406 407 /* Interface 0 Ok */ 408 sc->sc_iface0 = iface; 409 uaa->ifaces[0] = NULL; 410 411 /* 412 * Interface 1 must have 2 endpoints 413 * 1) Isochronous IN endpoint to receive SCO data 414 * 2) Isochronous OUT endpoint to send SCO data 415 * 416 * and will have several configurations, which can be selected 417 * via a sysctl variable. We select config 0 to start, which 418 * means that no SCO data will be available. 419 */ 420 err = usbd_device2interface_handle(sc->sc_udev, 1, &iface); 421 if (err) { 422 aprint_error("%s: Could not get interface 1 handle %s (%d)\n", 423 USBDEVNAME(sc->sc_dev), usbd_errstr(err), err); 424 425 USB_ATTACH_ERROR_RETURN; 426 } 427 428 cd = usbd_get_config_descriptor(sc->sc_udev); 429 if (cd == NULL) { 430 aprint_error("%s: could not get config descriptor\n", 431 USBDEVNAME(sc->sc_dev)); 432 433 USB_ATTACH_ERROR_RETURN; 434 } 435 436 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 437 438 /* Interface 1 Ok */ 439 sc->sc_iface1 = iface; 440 uaa->ifaces[1] = NULL; 441 442 /* set initial config */ 443 err = ubt_set_isoc_config(sc); 444 if (err) { 445 aprint_error("%s: ISOC config failed\n", 446 USBDEVNAME(sc->sc_dev)); 447 448 USB_ATTACH_ERROR_RETURN; 449 } 450 451 /* Attach HCI */ 452 sc->sc_unit.hci_softc = sc; 453 sc->sc_unit.hci_devname = USBDEVNAME(sc->sc_dev); 454 sc->sc_unit.hci_enable = ubt_enable; 455 sc->sc_unit.hci_disable = ubt_disable; 456 sc->sc_unit.hci_start_cmd = ubt_xmit_cmd_start; 457 sc->sc_unit.hci_start_acl = ubt_xmit_acl_start; 458 sc->sc_unit.hci_start_sco = ubt_xmit_sco_start; 459 sc->sc_unit.hci_ipl = makeiplcookie(IPL_USB); /* XXX: IPL_SOFTUSB ?? */ 460 hci_attach(&sc->sc_unit); 461 462 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 463 USBDEV(sc->sc_dev)); 464 465 /* sysctl set-up for alternate configs */ 466 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 467 CTLFLAG_PERMANENT, 468 CTLTYPE_NODE, "hw", 469 NULL, 470 NULL, 0, 471 NULL, 0, 472 CTL_HW, CTL_EOL); 473 474 sysctl_createv(&sc->sc_log, 0, NULL, &node, 475 0, 476 CTLTYPE_NODE, USBDEVNAME(sc->sc_dev), 477 SYSCTL_DESCR("ubt driver information"), 478 NULL, 0, 479 NULL, 0, 480 CTL_HW, 481 CTL_CREATE, CTL_EOL); 482 483 if (node != NULL) { 484 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 485 CTLFLAG_READWRITE, 486 CTLTYPE_INT, "config", 487 SYSCTL_DESCR("configuration number"), 488 ubt_sysctl_config, 0, 489 sc, 0, 490 CTL_HW, node->sysctl_num, 491 CTL_CREATE, CTL_EOL); 492 493 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 494 CTLFLAG_READONLY, 495 CTLTYPE_INT, "alt_config", 496 SYSCTL_DESCR("number of alternate configurations"), 497 NULL, 0, 498 &sc->sc_alt_config, sizeof(sc->sc_alt_config), 499 CTL_HW, node->sysctl_num, 500 CTL_CREATE, CTL_EOL); 501 502 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 503 CTLFLAG_READONLY, 504 CTLTYPE_INT, "sco_rxsize", 505 SYSCTL_DESCR("max SCO receive size"), 506 NULL, 0, 507 &sc->sc_scord_size, sizeof(sc->sc_scord_size), 508 CTL_HW, node->sysctl_num, 509 CTL_CREATE, CTL_EOL); 510 511 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 512 CTLFLAG_READONLY, 513 CTLTYPE_INT, "sco_txsize", 514 SYSCTL_DESCR("max SCO transmit size"), 515 NULL, 0, 516 &sc->sc_scowr_size, sizeof(sc->sc_scowr_size), 517 CTL_HW, node->sysctl_num, 518 CTL_CREATE, CTL_EOL); 519 } 520 521 USB_ATTACH_SUCCESS_RETURN; 522 } 523 524 USB_DETACH(ubt) 525 { 526 USB_DETACH_START(ubt, sc); 527 int s; 528 529 DPRINTF("sc=%p flags=%d\n", sc, flags); 530 531 sc->sc_dying = 1; 532 533 /* delete sysctl nodes */ 534 sysctl_teardown(&sc->sc_log); 535 536 /* Detach HCI interface */ 537 hci_detach(&sc->sc_unit); 538 539 /* 540 * Abort all pipes. Causes processes waiting for transfer to wake. 541 * 542 * Actually, hci_detach() above will call ubt_disable() which may 543 * call ubt_abortdealloc(), but lets be sure since doing it twice 544 * wont cause an error. 545 */ 546 ubt_abortdealloc(sc); 547 548 /* wait for all processes to finish */ 549 s = splusb(); 550 if (sc->sc_refcnt-- > 0) 551 usb_detach_wait(USBDEV(sc->sc_dev)); 552 553 splx(s); 554 555 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 556 USBDEV(sc->sc_dev)); 557 558 DPRINTFN(1, "driver detached\n"); 559 560 return 0; 561 } 562 563 int 564 ubt_activate(device_ptr_t self, enum devact act) 565 { 566 struct ubt_softc *sc = (struct ubt_softc *)self; 567 int error = 0; 568 569 DPRINTFN(1, "ubt_activate: sc=%p, act=%d\n", sc, act); 570 571 switch (act) { 572 case DVACT_ACTIVATE: 573 return EOPNOTSUPP; 574 break; 575 576 case DVACT_DEACTIVATE: 577 sc->sc_dying = 1; 578 break; 579 } 580 return error; 581 } 582 583 /* set ISOC configuration */ 584 static int 585 ubt_set_isoc_config(struct ubt_softc *sc) 586 { 587 usb_endpoint_descriptor_t *ed; 588 int rd_addr, wr_addr, rd_size, wr_size; 589 uint8_t count, i; 590 int err; 591 592 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 593 if (err != USBD_NORMAL_COMPLETION) { 594 aprint_error( 595 "%s: Could not set config %d on ISOC interface. %s (%d)\n", 596 USBDEVNAME(sc->sc_dev), sc->sc_config, usbd_errstr(err), err); 597 598 return err == USBD_IN_USE ? EBUSY : EIO; 599 } 600 601 /* 602 * We wont get past the above if there are any pipes open, so no 603 * need to worry about buf/xfer/pipe deallocation. If we get an 604 * error after this, the frame quantities will be 0 and no SCO 605 * data will be possible. 606 */ 607 608 sc->sc_scord_size = rd_size = 0; 609 sc->sc_scord_addr = rd_addr = -1; 610 611 sc->sc_scowr_size = wr_size = 0; 612 sc->sc_scowr_addr = wr_addr = -1; 613 614 count = 0; 615 (void)usbd_endpoint_count(sc->sc_iface1, &count); 616 617 for (i = 0 ; i < count ; i++) { 618 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 619 if (ed == NULL) { 620 printf("%s: could not read endpoint descriptor %d\n", 621 USBDEVNAME(sc->sc_dev), i); 622 623 return EIO; 624 } 625 626 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 627 USBDEVNAME(sc->sc_dev), 628 UE_GET_XFERTYPE(ed->bmAttributes), 629 UE_GET_ISO_TYPE(ed->bmAttributes), 630 ed->bEndpointAddress, 631 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 632 633 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 634 continue; 635 636 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 637 rd_addr = ed->bEndpointAddress; 638 rd_size = UGETW(ed->wMaxPacketSize); 639 } else { 640 wr_addr = ed->bEndpointAddress; 641 wr_size = UGETW(ed->wMaxPacketSize); 642 } 643 } 644 645 if (rd_addr == -1) { 646 aprint_error( 647 "%s: missing ISOC IN endpoint on interface config %d\n", 648 USBDEVNAME(sc->sc_dev), sc->sc_config); 649 650 return ENOENT; 651 } 652 if (wr_addr == -1) { 653 aprint_error( 654 "%s: missing ISOC OUT endpoint on interface config %d\n", 655 USBDEVNAME(sc->sc_dev), sc->sc_config); 656 657 return ENOENT; 658 } 659 660 #ifdef DIAGNOSTIC 661 if (rd_size > MLEN) { 662 printf("%s: rd_size=%d exceeds MLEN\n", 663 USBDEVNAME(sc->sc_dev), rd_size); 664 665 return EOVERFLOW; 666 } 667 668 if (wr_size > MLEN) { 669 printf("%s: wr_size=%d exceeds MLEN\n", 670 USBDEVNAME(sc->sc_dev), wr_size); 671 672 return EOVERFLOW; 673 } 674 #endif 675 676 sc->sc_scord_size = rd_size; 677 sc->sc_scord_addr = rd_addr; 678 679 sc->sc_scowr_size = wr_size; 680 sc->sc_scowr_addr = wr_addr; 681 682 return 0; 683 } 684 685 /* sysctl helper to set alternate configurations */ 686 static int 687 ubt_sysctl_config(SYSCTLFN_ARGS) 688 { 689 struct sysctlnode node; 690 struct ubt_softc *sc; 691 int t, error; 692 693 node = *rnode; 694 sc = node.sysctl_data; 695 696 t = sc->sc_config; 697 node.sysctl_data = &t; 698 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 699 if (error || newp == NULL) 700 return error; 701 702 if (t < 0 || t >= sc->sc_alt_config) 703 return EINVAL; 704 705 /* This may not change when the unit is enabled */ 706 if (sc->sc_unit.hci_flags & BTF_RUNNING) 707 return EBUSY; 708 709 sc->sc_config = t; 710 return ubt_set_isoc_config(sc); 711 } 712 713 static void 714 ubt_abortdealloc(struct ubt_softc *sc) 715 { 716 int i; 717 718 DPRINTFN(1, "sc=%p\n", sc); 719 720 /* Abort all pipes */ 721 if (sc->sc_evt_pipe != NULL) { 722 usbd_abort_pipe(sc->sc_evt_pipe); 723 usbd_close_pipe(sc->sc_evt_pipe); 724 sc->sc_evt_pipe = NULL; 725 } 726 727 if (sc->sc_aclrd_pipe != NULL) { 728 usbd_abort_pipe(sc->sc_aclrd_pipe); 729 usbd_close_pipe(sc->sc_aclrd_pipe); 730 sc->sc_aclrd_pipe = NULL; 731 } 732 733 if (sc->sc_aclwr_pipe != NULL) { 734 usbd_abort_pipe(sc->sc_aclwr_pipe); 735 usbd_close_pipe(sc->sc_aclwr_pipe); 736 sc->sc_aclwr_pipe = NULL; 737 } 738 739 if (sc->sc_scord_pipe != NULL) { 740 usbd_abort_pipe(sc->sc_scord_pipe); 741 usbd_close_pipe(sc->sc_scord_pipe); 742 sc->sc_scord_pipe = NULL; 743 } 744 745 if (sc->sc_scowr_pipe != NULL) { 746 usbd_abort_pipe(sc->sc_scowr_pipe); 747 usbd_close_pipe(sc->sc_scowr_pipe); 748 sc->sc_scowr_pipe = NULL; 749 } 750 751 /* Free event buffer */ 752 if (sc->sc_evt_buf != NULL) { 753 free(sc->sc_evt_buf, M_USBDEV); 754 sc->sc_evt_buf = NULL; 755 } 756 757 /* Free all xfers and xfer buffers (implicit) */ 758 if (sc->sc_cmd_xfer != NULL) { 759 usbd_free_xfer(sc->sc_cmd_xfer); 760 sc->sc_cmd_xfer = NULL; 761 sc->sc_cmd_buf = NULL; 762 } 763 764 if (sc->sc_aclrd_xfer != NULL) { 765 usbd_free_xfer(sc->sc_aclrd_xfer); 766 sc->sc_aclrd_xfer = NULL; 767 sc->sc_aclrd_buf = NULL; 768 } 769 770 if (sc->sc_aclwr_xfer != NULL) { 771 usbd_free_xfer(sc->sc_aclwr_xfer); 772 sc->sc_aclwr_xfer = NULL; 773 sc->sc_aclwr_buf = NULL; 774 } 775 776 for (i = 0 ; i < UBT_NXFERS ; i++) { 777 if (sc->sc_scord[i].xfer != NULL) { 778 usbd_free_xfer(sc->sc_scord[i].xfer); 779 sc->sc_scord[i].xfer = NULL; 780 sc->sc_scord[i].buf = NULL; 781 } 782 783 if (sc->sc_scowr[i].xfer != NULL) { 784 usbd_free_xfer(sc->sc_scowr[i].xfer); 785 sc->sc_scowr[i].xfer = NULL; 786 sc->sc_scowr[i].buf = NULL; 787 } 788 } 789 790 /* Free partial SCO packets */ 791 if (sc->sc_scord_mbuf != NULL) { 792 m_freem(sc->sc_scord_mbuf); 793 sc->sc_scord_mbuf = NULL; 794 } 795 796 if (sc->sc_scowr_mbuf != NULL) { 797 m_freem(sc->sc_scowr_mbuf); 798 sc->sc_scowr_mbuf = NULL; 799 } 800 } 801 802 /******************************************************************************* 803 * 804 * Bluetooth Unit/USB callbacks 805 * 806 * All of this will be called at the IPL_ we specified above 807 */ 808 static int 809 ubt_enable(struct hci_unit *unit) 810 { 811 struct ubt_softc *sc = unit->hci_softc; 812 usbd_status err; 813 int i, error; 814 815 DPRINTFN(1, "sc=%p\n", sc); 816 817 if (unit->hci_flags & BTF_RUNNING) 818 return 0; 819 820 /* Events */ 821 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 822 if (sc->sc_evt_buf == NULL) { 823 error = ENOMEM; 824 goto bad; 825 } 826 err = usbd_open_pipe_intr(sc->sc_iface0, 827 sc->sc_evt_addr, 828 USBD_SHORT_XFER_OK, 829 &sc->sc_evt_pipe, 830 sc, 831 sc->sc_evt_buf, 832 UBT_BUFSIZ_EVENT, 833 ubt_recv_event, 834 USBD_DEFAULT_INTERVAL); 835 if (err != USBD_NORMAL_COMPLETION) { 836 error = EIO; 837 goto bad; 838 } 839 840 /* Commands */ 841 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 842 if (sc->sc_cmd_xfer == NULL) { 843 error = ENOMEM; 844 goto bad; 845 } 846 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 847 if (sc->sc_cmd_buf == NULL) { 848 error = ENOMEM; 849 goto bad; 850 } 851 852 /* ACL read */ 853 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 854 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 855 if (err != USBD_NORMAL_COMPLETION) { 856 error = EIO; 857 goto bad; 858 } 859 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 860 if (sc->sc_aclrd_xfer == NULL) { 861 error = ENOMEM; 862 goto bad; 863 } 864 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 865 if (sc->sc_aclrd_buf == NULL) { 866 error = ENOMEM; 867 goto bad; 868 } 869 sc->sc_aclrd_busy = 0; 870 ubt_recv_acl_start(sc); 871 872 /* ACL write */ 873 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 874 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 875 if (err != USBD_NORMAL_COMPLETION) { 876 error = EIO; 877 goto bad; 878 } 879 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 880 if (sc->sc_aclwr_xfer == NULL) { 881 error = ENOMEM; 882 goto bad; 883 } 884 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 885 if (sc->sc_aclwr_buf == NULL) { 886 error = ENOMEM; 887 goto bad; 888 } 889 890 /* SCO read */ 891 if (sc->sc_scord_size > 0) { 892 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 893 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 894 if (err != USBD_NORMAL_COMPLETION) { 895 error = EIO; 896 goto bad; 897 } 898 899 for (i = 0 ; i < UBT_NXFERS ; i++) { 900 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 901 if (sc->sc_scord[i].xfer == NULL) { 902 error = ENOMEM; 903 goto bad; 904 } 905 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 906 sc->sc_scord_size * UBT_NFRAMES); 907 if (sc->sc_scord[i].buf == NULL) { 908 error = ENOMEM; 909 goto bad; 910 } 911 sc->sc_scord[i].softc = sc; 912 sc->sc_scord[i].busy = 0; 913 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 914 } 915 } 916 917 /* SCO write */ 918 if (sc->sc_scowr_size > 0) { 919 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 920 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 921 if (err != USBD_NORMAL_COMPLETION) { 922 error = EIO; 923 goto bad; 924 } 925 926 for (i = 0 ; i < UBT_NXFERS ; i++) { 927 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 928 if (sc->sc_scowr[i].xfer == NULL) { 929 error = ENOMEM; 930 goto bad; 931 } 932 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 933 sc->sc_scowr_size * UBT_NFRAMES); 934 if (sc->sc_scowr[i].buf == NULL) { 935 error = ENOMEM; 936 goto bad; 937 } 938 sc->sc_scowr[i].softc = sc; 939 sc->sc_scowr[i].busy = 0; 940 } 941 } 942 943 unit->hci_flags &= ~BTF_XMIT; 944 unit->hci_flags |= BTF_RUNNING; 945 return 0; 946 947 bad: 948 ubt_abortdealloc(sc); 949 return error; 950 } 951 952 static void 953 ubt_disable(struct hci_unit *unit) 954 { 955 struct ubt_softc *sc = unit->hci_softc; 956 957 DPRINTFN(1, "sc=%p\n", sc); 958 959 if ((unit->hci_flags & BTF_RUNNING) == 0) 960 return; 961 962 ubt_abortdealloc(sc); 963 964 unit->hci_flags &= ~BTF_RUNNING; 965 } 966 967 static void 968 ubt_xmit_cmd_start(struct hci_unit *unit) 969 { 970 struct ubt_softc *sc = unit->hci_softc; 971 usb_device_request_t req; 972 usbd_status status; 973 struct mbuf *m; 974 int len; 975 976 if (sc->sc_dying) 977 return; 978 979 if (MBUFQ_FIRST(&unit->hci_cmdq) == NULL) 980 return; 981 982 MBUFQ_DEQUEUE(&unit->hci_cmdq, m); 983 KASSERT(m != NULL); 984 985 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 986 unit->hci_devname, m->m_pkthdr.len); 987 988 sc->sc_refcnt++; 989 unit->hci_flags |= BTF_XMIT_CMD; 990 991 len = m->m_pkthdr.len - 1; 992 m_copydata(m, 1, len, sc->sc_cmd_buf); 993 m_freem(m); 994 995 memset(&req, 0, sizeof(req)); 996 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 997 USETW(req.wLength, len); 998 999 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1000 sc->sc_udev, 1001 unit, 1002 UBT_CMD_TIMEOUT, 1003 &req, 1004 sc->sc_cmd_buf, 1005 len, 1006 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1007 ubt_xmit_cmd_complete); 1008 1009 status = usbd_transfer(sc->sc_cmd_xfer); 1010 1011 KASSERT(status != USBD_NORMAL_COMPLETION); 1012 1013 if (status != USBD_IN_PROGRESS) { 1014 DPRINTF("usbd_transfer status=%s (%d)\n", 1015 usbd_errstr(status), status); 1016 1017 sc->sc_refcnt--; 1018 unit->hci_flags &= ~BTF_XMIT_CMD; 1019 } 1020 } 1021 1022 static void 1023 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1024 usbd_private_handle h, usbd_status status) 1025 { 1026 struct hci_unit *unit = h; 1027 struct ubt_softc *sc = unit->hci_softc; 1028 uint32_t count; 1029 1030 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1031 unit->hci_devname, usbd_errstr(status), status); 1032 1033 unit->hci_flags &= ~BTF_XMIT_CMD; 1034 1035 if (--sc->sc_refcnt < 0) { 1036 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1037 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1038 return; 1039 } 1040 1041 if (sc->sc_dying) { 1042 DPRINTF("sc_dying\n"); 1043 return; 1044 } 1045 1046 if (status != USBD_NORMAL_COMPLETION) { 1047 DPRINTF("status=%s (%d)\n", 1048 usbd_errstr(status), status); 1049 1050 unit->hci_stats.err_tx++; 1051 return; 1052 } 1053 1054 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1055 unit->hci_stats.cmd_tx++; 1056 unit->hci_stats.byte_tx += count; 1057 1058 ubt_xmit_cmd_start(unit); 1059 } 1060 1061 static void 1062 ubt_xmit_acl_start(struct hci_unit *unit) 1063 { 1064 struct ubt_softc *sc = unit->hci_softc; 1065 struct mbuf *m; 1066 usbd_status status; 1067 int len; 1068 1069 if (sc->sc_dying) 1070 return; 1071 1072 if (MBUFQ_FIRST(&unit->hci_acltxq) == NULL) 1073 return; 1074 1075 sc->sc_refcnt++; 1076 unit->hci_flags |= BTF_XMIT_ACL; 1077 1078 MBUFQ_DEQUEUE(&unit->hci_acltxq, m); 1079 KASSERT(m != NULL); 1080 1081 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1082 unit->hci_devname, m->m_pkthdr.len); 1083 1084 len = m->m_pkthdr.len - 1; 1085 if (len > UBT_BUFSIZ_ACL) { 1086 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1087 unit->hci_devname, len, UBT_BUFSIZ_ACL); 1088 1089 len = UBT_BUFSIZ_ACL; 1090 } 1091 1092 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1093 m_freem(m); 1094 1095 unit->hci_stats.acl_tx++; 1096 unit->hci_stats.byte_tx += len; 1097 1098 usbd_setup_xfer(sc->sc_aclwr_xfer, 1099 sc->sc_aclwr_pipe, 1100 unit, 1101 sc->sc_aclwr_buf, 1102 len, 1103 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1104 UBT_ACL_TIMEOUT, 1105 ubt_xmit_acl_complete); 1106 1107 status = usbd_transfer(sc->sc_aclwr_xfer); 1108 1109 KASSERT(status != USBD_NORMAL_COMPLETION); 1110 1111 if (status != USBD_IN_PROGRESS) { 1112 DPRINTF("usbd_transfer status=%s (%d)\n", 1113 usbd_errstr(status), status); 1114 1115 sc->sc_refcnt--; 1116 unit->hci_flags &= ~BTF_XMIT_ACL; 1117 } 1118 } 1119 1120 static void 1121 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1122 usbd_private_handle h, usbd_status status) 1123 { 1124 struct hci_unit *unit = h; 1125 struct ubt_softc *sc = unit->hci_softc; 1126 1127 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1128 unit->hci_devname, usbd_errstr(status), status); 1129 1130 unit->hci_flags &= ~BTF_XMIT_ACL; 1131 1132 if (--sc->sc_refcnt < 0) { 1133 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1134 return; 1135 } 1136 1137 if (sc->sc_dying) 1138 return; 1139 1140 if (status != USBD_NORMAL_COMPLETION) { 1141 DPRINTF("status=%s (%d)\n", 1142 usbd_errstr(status), status); 1143 1144 unit->hci_stats.err_tx++; 1145 1146 if (status == USBD_STALLED) 1147 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1148 else 1149 return; 1150 } 1151 1152 ubt_xmit_acl_start(unit); 1153 } 1154 1155 static void 1156 ubt_xmit_sco_start(struct hci_unit *unit) 1157 { 1158 struct ubt_softc *sc = unit->hci_softc; 1159 int i; 1160 1161 if (sc->sc_dying || sc->sc_scowr_size == 0) 1162 return; 1163 1164 for (i = 0 ; i < UBT_NXFERS ; i++) { 1165 if (sc->sc_scowr[i].busy) 1166 continue; 1167 1168 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1169 } 1170 } 1171 1172 static void 1173 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1174 { 1175 struct mbuf *m; 1176 uint8_t *buf; 1177 int num, len, size, space; 1178 1179 space = sc->sc_scowr_size * UBT_NFRAMES; 1180 buf = isoc->buf; 1181 len = 0; 1182 1183 /* 1184 * Fill the request buffer with data from the queue, 1185 * keeping any leftover packet on our private hook. 1186 * 1187 * Complete packets are passed back up to the stack 1188 * for disposal, since we can't rely on the controller 1189 * to tell us when it has finished with them. 1190 */ 1191 1192 m = sc->sc_scowr_mbuf; 1193 while (space > 0) { 1194 if (m == NULL) { 1195 MBUFQ_DEQUEUE(&sc->sc_unit.hci_scotxq, m); 1196 if (m == NULL) 1197 break; 1198 1199 m_adj(m, 1); /* packet type */ 1200 } 1201 1202 if (m->m_pkthdr.len > 0) { 1203 size = MIN(m->m_pkthdr.len, space); 1204 1205 m_copydata(m, 0, size, buf); 1206 m_adj(m, size); 1207 1208 buf += size; 1209 len += size; 1210 space -= size; 1211 } 1212 1213 if (m->m_pkthdr.len == 0) { 1214 sc->sc_unit.hci_stats.sco_tx++; 1215 hci_complete_sco(&sc->sc_unit, m); 1216 m = NULL; 1217 } 1218 } 1219 sc->sc_scowr_mbuf = m; 1220 1221 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1222 1223 if (len == 0) /* nothing to send */ 1224 return; 1225 1226 sc->sc_refcnt++; 1227 sc->sc_unit.hci_flags |= BTF_XMIT_SCO; 1228 sc->sc_unit.hci_stats.byte_tx += len; 1229 isoc->busy = 1; 1230 1231 /* 1232 * calculate number of isoc frames and sizes 1233 */ 1234 1235 for (num = 0 ; len > 0 ; num++) { 1236 size = MIN(sc->sc_scowr_size, len); 1237 1238 isoc->size[num] = size; 1239 len -= size; 1240 } 1241 1242 usbd_setup_isoc_xfer(isoc->xfer, 1243 sc->sc_scowr_pipe, 1244 isoc, 1245 isoc->size, 1246 num, 1247 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1248 ubt_xmit_sco_complete); 1249 1250 usbd_transfer(isoc->xfer); 1251 } 1252 1253 static void 1254 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1255 usbd_private_handle h, usbd_status status) 1256 { 1257 struct ubt_isoc_xfer *isoc = h; 1258 struct ubt_softc *sc; 1259 int i; 1260 1261 KASSERT(xfer == isoc->xfer); 1262 sc = isoc->softc; 1263 1264 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1265 isoc, usbd_errstr(status), status); 1266 1267 isoc->busy = 0; 1268 1269 for (i = 0 ; ; i++) { 1270 if (i == UBT_NXFERS) { 1271 sc->sc_unit.hci_flags &= ~BTF_XMIT_SCO; 1272 break; 1273 } 1274 1275 if (sc->sc_scowr[i].busy) 1276 break; 1277 } 1278 1279 if (--sc->sc_refcnt < 0) { 1280 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1281 return; 1282 } 1283 1284 if (sc->sc_dying) 1285 return; 1286 1287 if (status != USBD_NORMAL_COMPLETION) { 1288 DPRINTF("status=%s (%d)\n", 1289 usbd_errstr(status), status); 1290 1291 sc->sc_unit.hci_stats.err_tx++; 1292 1293 if (status == USBD_STALLED) 1294 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1295 else 1296 return; 1297 } 1298 1299 ubt_xmit_sco_start(&sc->sc_unit); 1300 } 1301 1302 /* 1303 * load incoming data into an mbuf with 1304 * leading type byte 1305 */ 1306 static struct mbuf * 1307 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1308 { 1309 struct mbuf *m; 1310 1311 MGETHDR(m, M_DONTWAIT, MT_DATA); 1312 if (m == NULL) 1313 return NULL; 1314 1315 *mtod(m, uint8_t *) = type; 1316 m->m_pkthdr.len = m->m_len = MHLEN; 1317 m_copyback(m, 1, count, buf); // (extends if necessary) 1318 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1319 m_free(m); 1320 return NULL; 1321 } 1322 1323 m->m_pkthdr.len = count + 1; 1324 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1325 1326 return m; 1327 } 1328 1329 static void 1330 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1331 { 1332 struct ubt_softc *sc = h; 1333 struct mbuf *m; 1334 uint32_t count; 1335 void *buf; 1336 1337 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1338 sc, usbd_errstr(status), status); 1339 1340 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1341 return; 1342 1343 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1344 1345 if (count < sizeof(hci_event_hdr_t) - 1) { 1346 DPRINTF("dumped undersized event (count = %d)\n", count); 1347 sc->sc_unit.hci_stats.err_rx++; 1348 return; 1349 } 1350 1351 sc->sc_unit.hci_stats.evt_rx++; 1352 sc->sc_unit.hci_stats.byte_rx += count; 1353 1354 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1355 if (m != NULL) 1356 hci_input_event(&sc->sc_unit, m); 1357 else 1358 sc->sc_unit.hci_stats.err_rx++; 1359 } 1360 1361 static void 1362 ubt_recv_acl_start(struct ubt_softc *sc) 1363 { 1364 usbd_status status; 1365 1366 DPRINTFN(15, "sc=%p\n", sc); 1367 1368 if (sc->sc_aclrd_busy || sc->sc_dying) { 1369 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1370 sc->sc_aclrd_busy, 1371 sc->sc_dying); 1372 1373 return; 1374 } 1375 1376 sc->sc_refcnt++; 1377 sc->sc_aclrd_busy = 1; 1378 1379 usbd_setup_xfer(sc->sc_aclrd_xfer, 1380 sc->sc_aclrd_pipe, 1381 sc, 1382 sc->sc_aclrd_buf, 1383 UBT_BUFSIZ_ACL, 1384 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1385 USBD_NO_TIMEOUT, 1386 ubt_recv_acl_complete); 1387 1388 status = usbd_transfer(sc->sc_aclrd_xfer); 1389 1390 KASSERT(status != USBD_NORMAL_COMPLETION); 1391 1392 if (status != USBD_IN_PROGRESS) { 1393 DPRINTF("usbd_transfer status=%s (%d)\n", 1394 usbd_errstr(status), status); 1395 1396 sc->sc_refcnt--; 1397 sc->sc_aclrd_busy = 0; 1398 } 1399 } 1400 1401 static void 1402 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1403 usbd_private_handle h, usbd_status status) 1404 { 1405 struct ubt_softc *sc = h; 1406 struct mbuf *m; 1407 uint32_t count; 1408 void *buf; 1409 1410 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1411 sc, usbd_errstr(status), status); 1412 1413 sc->sc_aclrd_busy = 0; 1414 1415 if (--sc->sc_refcnt < 0) { 1416 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1417 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1418 return; 1419 } 1420 1421 if (sc->sc_dying) { 1422 DPRINTF("sc_dying\n"); 1423 return; 1424 } 1425 1426 if (status != USBD_NORMAL_COMPLETION) { 1427 DPRINTF("status=%s (%d)\n", 1428 usbd_errstr(status), status); 1429 1430 sc->sc_unit.hci_stats.err_rx++; 1431 1432 if (status == USBD_STALLED) 1433 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1434 else 1435 return; 1436 } else { 1437 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1438 1439 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1440 DPRINTF("dumped undersized packet (%d)\n", count); 1441 sc->sc_unit.hci_stats.err_rx++; 1442 } else { 1443 sc->sc_unit.hci_stats.acl_rx++; 1444 sc->sc_unit.hci_stats.byte_rx += count; 1445 1446 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1447 if (m != NULL) 1448 hci_input_acl(&sc->sc_unit, m); 1449 else 1450 sc->sc_unit.hci_stats.err_rx++; 1451 } 1452 } 1453 1454 /* and restart */ 1455 ubt_recv_acl_start(sc); 1456 } 1457 1458 static void 1459 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1460 { 1461 int i; 1462 1463 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1464 1465 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1466 DPRINTF("%s%s%s\n", 1467 isoc->busy ? " busy" : "", 1468 sc->sc_dying ? " dying" : "", 1469 sc->sc_scord_size == 0 ? " size=0" : ""); 1470 1471 return; 1472 } 1473 1474 sc->sc_refcnt++; 1475 isoc->busy = 1; 1476 1477 for (i = 0 ; i < UBT_NFRAMES ; i++) 1478 isoc->size[i] = sc->sc_scord_size; 1479 1480 usbd_setup_isoc_xfer(isoc->xfer, 1481 sc->sc_scord_pipe, 1482 isoc, 1483 isoc->size, 1484 UBT_NFRAMES, 1485 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1486 ubt_recv_sco_complete); 1487 1488 usbd_transfer(isoc->xfer); 1489 } 1490 1491 static void 1492 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1493 usbd_private_handle h, usbd_status status) 1494 { 1495 struct ubt_isoc_xfer *isoc = h; 1496 struct ubt_softc *sc; 1497 struct mbuf *m; 1498 uint32_t count; 1499 uint8_t *ptr, *frame; 1500 int i, size, got, want; 1501 1502 KASSERT(isoc != NULL); 1503 KASSERT(isoc->xfer == xfer); 1504 1505 sc = isoc->softc; 1506 isoc->busy = 0; 1507 1508 if (--sc->sc_refcnt < 0) { 1509 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1510 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1511 return; 1512 } 1513 1514 if (sc->sc_dying) { 1515 DPRINTF("sc_dying\n"); 1516 return; 1517 } 1518 1519 if (status != USBD_NORMAL_COMPLETION) { 1520 DPRINTF("status=%s (%d)\n", 1521 usbd_errstr(status), status); 1522 1523 sc->sc_unit.hci_stats.err_rx++; 1524 1525 if (status == USBD_STALLED) { 1526 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1527 goto restart; 1528 } 1529 1530 return; 1531 } 1532 1533 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1534 if (count == 0) 1535 goto restart; 1536 1537 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1538 sc, isoc, count); 1539 1540 sc->sc_unit.hci_stats.byte_rx += count; 1541 1542 /* 1543 * Extract SCO packets from ISOC frames. The way we have it, 1544 * no SCO packet can be bigger than MHLEN. This is unlikely 1545 * to actually happen, but if we ran out of mbufs and lost 1546 * sync then we may get spurious data that makes it seem that 1547 * way, so we discard data that wont fit. This doesnt really 1548 * help with the lost sync situation alas. 1549 */ 1550 1551 m = sc->sc_scord_mbuf; 1552 if (m != NULL) { 1553 sc->sc_scord_mbuf = NULL; 1554 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1555 got = m->m_pkthdr.len; 1556 want = sizeof(hci_scodata_hdr_t); 1557 if (got >= want) 1558 want += mtod(m, hci_scodata_hdr_t *)->length ; 1559 } else { 1560 ptr = NULL; 1561 got = 0; 1562 want = 0; 1563 } 1564 1565 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1566 frame = isoc->buf + (i * sc->sc_scord_size); 1567 1568 while (isoc->size[i] > 0) { 1569 size = isoc->size[i]; 1570 1571 if (m == NULL) { 1572 MGETHDR(m, M_DONTWAIT, MT_DATA); 1573 if (m == NULL) { 1574 printf("%s: out of memory (xfer halted)\n", 1575 USBDEVNAME(sc->sc_dev)); 1576 1577 sc->sc_unit.hci_stats.err_rx++; 1578 return; /* lost sync */ 1579 } 1580 1581 ptr = mtod(m, uint8_t *); 1582 *ptr++ = HCI_SCO_DATA_PKT; 1583 got = 1; 1584 want = sizeof(hci_scodata_hdr_t); 1585 } 1586 1587 if (got + size > want) 1588 size = want - got; 1589 1590 if (got + size > MHLEN) 1591 memcpy(ptr, frame, MHLEN - got); 1592 else 1593 memcpy(ptr, frame, size); 1594 1595 ptr += size; 1596 got += size; 1597 frame += size; 1598 1599 if (got == want) { 1600 /* 1601 * If we only got a header, add the packet 1602 * length to our want count. Send complete 1603 * packets up to protocol stack. 1604 */ 1605 if (want == sizeof(hci_scodata_hdr_t)) 1606 want += mtod(m, hci_scodata_hdr_t *)->length; 1607 1608 if (got == want) { 1609 m->m_pkthdr.len = m->m_len = got; 1610 sc->sc_unit.hci_stats.sco_rx++; 1611 hci_input_sco(&sc->sc_unit, m); 1612 m = NULL; 1613 } 1614 } 1615 1616 isoc->size[i] -= size; 1617 } 1618 } 1619 1620 if (m != NULL) { 1621 m->m_pkthdr.len = m->m_len = got; 1622 sc->sc_scord_mbuf = m; 1623 } 1624 1625 restart: /* and restart */ 1626 ubt_recv_sco_start1(sc, isoc); 1627 } 1628
Indexes created Wed Sep 24 22:09:59 GMT 2025