ubt.c revision 1.37
1 /* $NetBSD: ubt.c,v 1.37 2009/09/23 19:07:19 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 1.37 2009/09/23 19:07:19 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(fmt, args...) do { \ 101 if (ubt_debug) \ 102 printf("%s: "fmt, __func__ , ##args); \ 103 } while (/* CONSTCOND */0) 104 105 #define DPRINTFN(n, fmt, args...) do { \ 106 if (ubt_debug > (n)) \ 107 printf("%s: "fmt, __func__ , ##args); \ 108 } while (/* CONSTCOND */0) 109 110 SYSCTL_SETUP(sysctl_hw_ubt_debug_setup, "sysctl hw.ubt_debug setup") 111 { 112 113 sysctl_createv(NULL, 0, NULL, NULL, 114 CTLFLAG_PERMANENT, 115 CTLTYPE_NODE, "hw", 116 NULL, 117 NULL, 0, 118 NULL, 0, 119 CTL_HW, CTL_EOL); 120 121 sysctl_createv(NULL, 0, NULL, NULL, 122 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 123 CTLTYPE_INT, "ubt_debug", 124 SYSCTL_DESCR("ubt debug level"), 125 NULL, 0, 126 &ubt_debug, sizeof(ubt_debug), 127 CTL_HW, CTL_CREATE, CTL_EOL); 128 } 129 #else 130 #define DPRINTF(...) 131 #define DPRINTFN(...) 132 #endif 133 134 /******************************************************************************* 135 * 136 * ubt softc structure 137 * 138 */ 139 140 /* buffer sizes */ 141 /* 142 * NB: although ACL packets can extend to 65535 bytes, most devices 143 * have max_acl_size at much less (largest I have seen is 384) 144 */ 145 #define UBT_BUFSIZ_CMD (HCI_CMD_PKT_SIZE - 1) 146 #define UBT_BUFSIZ_ACL (2048 - 1) 147 #define UBT_BUFSIZ_EVENT (HCI_EVENT_PKT_SIZE - 1) 148 149 /* Transmit timeouts */ 150 #define UBT_CMD_TIMEOUT USBD_DEFAULT_TIMEOUT 151 #define UBT_ACL_TIMEOUT USBD_DEFAULT_TIMEOUT 152 153 /* 154 * ISOC transfers 155 * 156 * xfer buffer size depends on the frame size, and the number 157 * of frames per transfer is fixed, as each frame should be 158 * 1ms worth of data. This keeps the rate that xfers complete 159 * fairly constant. We use multiple xfers to keep the hardware 160 * busy 161 */ 162 #define UBT_NXFERS 3 /* max xfers to queue */ 163 #define UBT_NFRAMES 10 /* frames per xfer */ 164 165 struct ubt_isoc_xfer { 166 struct ubt_softc *softc; 167 usbd_xfer_handle xfer; 168 uint8_t *buf; 169 uint16_t size[UBT_NFRAMES]; 170 int busy; 171 }; 172 173 struct ubt_softc { 174 USBBASEDEVICE sc_dev; 175 usbd_device_handle sc_udev; 176 int sc_refcnt; 177 int sc_dying; 178 int sc_enabled; 179 180 /* Control Interface */ 181 usbd_interface_handle sc_iface0; 182 183 /* Commands (control) */ 184 usbd_xfer_handle sc_cmd_xfer; 185 uint8_t *sc_cmd_buf; 186 int sc_cmd_busy; /* write active */ 187 MBUFQ_HEAD() sc_cmd_queue; /* output queue */ 188 189 /* Events (interrupt) */ 190 int sc_evt_addr; /* endpoint address */ 191 usbd_pipe_handle sc_evt_pipe; 192 uint8_t *sc_evt_buf; 193 194 /* ACL data (in) */ 195 int sc_aclrd_addr; /* endpoint address */ 196 usbd_pipe_handle sc_aclrd_pipe; /* read pipe */ 197 usbd_xfer_handle sc_aclrd_xfer; /* read xfer */ 198 uint8_t *sc_aclrd_buf; /* read buffer */ 199 int sc_aclrd_busy; /* reading */ 200 201 /* ACL data (out) */ 202 int sc_aclwr_addr; /* endpoint address */ 203 usbd_pipe_handle sc_aclwr_pipe; /* write pipe */ 204 usbd_xfer_handle sc_aclwr_xfer; /* write xfer */ 205 uint8_t *sc_aclwr_buf; /* write buffer */ 206 int sc_aclwr_busy; /* write active */ 207 MBUFQ_HEAD() sc_aclwr_queue;/* output queue */ 208 209 /* ISOC interface */ 210 usbd_interface_handle sc_iface1; /* ISOC interface */ 211 struct sysctllog *sc_log; /* sysctl log */ 212 int sc_config; /* current config no */ 213 int sc_alt_config; /* no of alternates */ 214 215 /* SCO data (in) */ 216 int sc_scord_addr; /* endpoint address */ 217 usbd_pipe_handle sc_scord_pipe; /* read pipe */ 218 int sc_scord_size; /* frame length */ 219 struct ubt_isoc_xfer sc_scord[UBT_NXFERS]; 220 struct mbuf *sc_scord_mbuf; /* current packet */ 221 222 /* SCO data (out) */ 223 int sc_scowr_addr; /* endpoint address */ 224 usbd_pipe_handle sc_scowr_pipe; /* write pipe */ 225 int sc_scowr_size; /* frame length */ 226 struct ubt_isoc_xfer sc_scowr[UBT_NXFERS]; 227 struct mbuf *sc_scowr_mbuf; /* current packet */ 228 int sc_scowr_busy; /* write active */ 229 MBUFQ_HEAD() sc_scowr_queue;/* output queue */ 230 231 /* Protocol structure */ 232 struct hci_unit *sc_unit; 233 struct bt_stats sc_stats; 234 235 /* Successfully attached */ 236 int sc_ok; 237 }; 238 239 /******************************************************************************* 240 * 241 * Bluetooth unit/USB callback routines 242 * 243 */ 244 static int ubt_enable(device_ptr_t); 245 static void ubt_disable(device_ptr_t); 246 247 static void ubt_xmit_cmd(device_ptr_t, struct mbuf *); 248 static void ubt_xmit_cmd_start(struct ubt_softc *); 249 static void ubt_xmit_cmd_complete(usbd_xfer_handle, 250 usbd_private_handle, usbd_status); 251 252 static void ubt_xmit_acl(device_ptr_t, struct mbuf *); 253 static void ubt_xmit_acl_start(struct ubt_softc *); 254 static void ubt_xmit_acl_complete(usbd_xfer_handle, 255 usbd_private_handle, usbd_status); 256 257 static void ubt_xmit_sco(device_ptr_t, struct mbuf *); 258 static void ubt_xmit_sco_start(struct ubt_softc *); 259 static void ubt_xmit_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 260 static void ubt_xmit_sco_complete(usbd_xfer_handle, 261 usbd_private_handle, usbd_status); 262 263 static void ubt_recv_event(usbd_xfer_handle, 264 usbd_private_handle, usbd_status); 265 266 static void ubt_recv_acl_start(struct ubt_softc *); 267 static void ubt_recv_acl_complete(usbd_xfer_handle, 268 usbd_private_handle, usbd_status); 269 270 static void ubt_recv_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 271 static void ubt_recv_sco_complete(usbd_xfer_handle, 272 usbd_private_handle, usbd_status); 273 274 static void ubt_stats(device_ptr_t, struct bt_stats *, int); 275 276 static const struct hci_if ubt_hci = { 277 .enable = ubt_enable, 278 .disable = ubt_disable, 279 .output_cmd = ubt_xmit_cmd, 280 .output_acl = ubt_xmit_acl, 281 .output_sco = ubt_xmit_sco, 282 .get_stats = ubt_stats, 283 .ipl = IPL_USB, /* IPL_SOFTUSB ??? */ 284 }; 285 286 /******************************************************************************* 287 * 288 * USB Autoconfig stuff 289 * 290 */ 291 292 USB_DECLARE_DRIVER(ubt); 293 294 static int ubt_set_isoc_config(struct ubt_softc *); 295 static int ubt_sysctl_config(SYSCTLFN_PROTO); 296 static void ubt_abortdealloc(struct ubt_softc *); 297 298 /* 299 * Match against the whole device, since we want to take 300 * both interfaces. If a device should be ignored then add 301 * 302 * { VendorID, ProductID } 303 * 304 * to the ubt_ignore list. 305 */ 306 static const struct usb_devno ubt_ignore[] = { 307 { USB_VENDOR_BROADCOM, USB_PRODUCT_BROADCOM_BCM2033NF }, 308 }; 309 310 USB_MATCH(ubt) 311 { 312 USB_MATCH_START(ubt, uaa); 313 314 DPRINTFN(50, "ubt_match\n"); 315 316 if (usb_lookup(ubt_ignore, uaa->vendor, uaa->product)) 317 return UMATCH_NONE; 318 319 if (uaa->class == UDCLASS_WIRELESS 320 && uaa->subclass == UDSUBCLASS_RF 321 && uaa->proto == UDPROTO_BLUETOOTH) 322 return UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO; 323 324 return UMATCH_NONE; 325 } 326 327 USB_ATTACH(ubt) 328 { 329 USB_ATTACH_START(ubt, sc, uaa); 330 usb_config_descriptor_t *cd; 331 usb_endpoint_descriptor_t *ed; 332 const struct sysctlnode *node; 333 char *devinfop; 334 int err; 335 uint8_t count, i; 336 337 DPRINTFN(50, "ubt_attach: sc=%p\n", sc); 338 339 sc->sc_dev = self; 340 sc->sc_udev = uaa->device; 341 342 MBUFQ_INIT(&sc->sc_cmd_queue); 343 MBUFQ_INIT(&sc->sc_aclwr_queue); 344 MBUFQ_INIT(&sc->sc_scowr_queue); 345 346 aprint_naive("\n"); 347 aprint_normal("\n"); 348 349 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 350 aprint_normal_dev(self, "%s\n", devinfop); 351 usbd_devinfo_free(devinfop); 352 353 /* 354 * Move the device into the configured state 355 */ 356 err = usbd_set_config_index(sc->sc_udev, 0, 1); 357 if (err) { 358 aprint_error_dev(self, "failed to set configuration idx 0: %s\n", 359 usbd_errstr(err)); 360 361 USB_ATTACH_ERROR_RETURN; 362 } 363 364 /* 365 * Interface 0 must have 3 endpoints 366 * 1) Interrupt endpoint to receive HCI events 367 * 2) Bulk IN endpoint to receive ACL data 368 * 3) Bulk OUT endpoint to send ACL data 369 */ 370 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface0); 371 if (err) { 372 aprint_error_dev(self, "Could not get interface 0 handle %s (%d)\n", 373 usbd_errstr(err), err); 374 375 USB_ATTACH_ERROR_RETURN; 376 } 377 378 sc->sc_evt_addr = -1; 379 sc->sc_aclrd_addr = -1; 380 sc->sc_aclwr_addr = -1; 381 382 count = 0; 383 (void)usbd_endpoint_count(sc->sc_iface0, &count); 384 385 for (i = 0 ; i < count ; i++) { 386 int dir, type; 387 388 ed = usbd_interface2endpoint_descriptor(sc->sc_iface0, i); 389 if (ed == NULL) { 390 aprint_error_dev(self, 391 "could not read endpoint descriptor %d\n", i); 392 393 USB_ATTACH_ERROR_RETURN; 394 } 395 396 dir = UE_GET_DIR(ed->bEndpointAddress); 397 type = UE_GET_XFERTYPE(ed->bmAttributes); 398 399 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 400 sc->sc_evt_addr = ed->bEndpointAddress; 401 else if (dir == UE_DIR_IN && type == UE_BULK) 402 sc->sc_aclrd_addr = ed->bEndpointAddress; 403 else if (dir == UE_DIR_OUT && type == UE_BULK) 404 sc->sc_aclwr_addr = ed->bEndpointAddress; 405 } 406 407 if (sc->sc_evt_addr == -1) { 408 aprint_error_dev(self, 409 "missing INTERRUPT endpoint on interface 0\n"); 410 411 USB_ATTACH_ERROR_RETURN; 412 } 413 if (sc->sc_aclrd_addr == -1) { 414 aprint_error_dev(self, 415 "missing BULK IN endpoint on interface 0\n"); 416 417 USB_ATTACH_ERROR_RETURN; 418 } 419 if (sc->sc_aclwr_addr == -1) { 420 aprint_error_dev(self, 421 "missing BULK OUT endpoint on interface 0\n"); 422 423 USB_ATTACH_ERROR_RETURN; 424 } 425 426 /* 427 * Interface 1 must have 2 endpoints 428 * 1) Isochronous IN endpoint to receive SCO data 429 * 2) Isochronous OUT endpoint to send SCO data 430 * 431 * and will have several configurations, which can be selected 432 * via a sysctl variable. We select config 0 to start, which 433 * means that no SCO data will be available. 434 */ 435 err = usbd_device2interface_handle(sc->sc_udev, 1, &sc->sc_iface1); 436 if (err) { 437 aprint_error_dev(self, 438 "Could not get interface 1 handle %s (%d)\n", 439 usbd_errstr(err), err); 440 441 USB_ATTACH_ERROR_RETURN; 442 } 443 444 cd = usbd_get_config_descriptor(sc->sc_udev); 445 if (cd == NULL) { 446 aprint_error_dev(self, "could not get config descriptor\n"); 447 448 USB_ATTACH_ERROR_RETURN; 449 } 450 451 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 452 453 /* set initial config */ 454 err = ubt_set_isoc_config(sc); 455 if (err) { 456 aprint_error_dev(self, "ISOC config failed\n"); 457 458 USB_ATTACH_ERROR_RETURN; 459 } 460 461 /* Attach HCI */ 462 sc->sc_unit = hci_attach(&ubt_hci, USBDEV(sc->sc_dev), 0); 463 464 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 465 USBDEV(sc->sc_dev)); 466 467 /* sysctl set-up for alternate configs */ 468 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 469 CTLFLAG_PERMANENT, 470 CTLTYPE_NODE, "hw", 471 NULL, 472 NULL, 0, 473 NULL, 0, 474 CTL_HW, CTL_EOL); 475 476 sysctl_createv(&sc->sc_log, 0, NULL, &node, 477 0, 478 CTLTYPE_NODE, USBDEVNAME(sc->sc_dev), 479 SYSCTL_DESCR("ubt driver information"), 480 NULL, 0, 481 NULL, 0, 482 CTL_HW, 483 CTL_CREATE, CTL_EOL); 484 485 if (node != NULL) { 486 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 487 CTLFLAG_READWRITE, 488 CTLTYPE_INT, "config", 489 SYSCTL_DESCR("configuration number"), 490 ubt_sysctl_config, 0, 491 sc, 0, 492 CTL_HW, node->sysctl_num, 493 CTL_CREATE, CTL_EOL); 494 495 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 496 CTLFLAG_READONLY, 497 CTLTYPE_INT, "alt_config", 498 SYSCTL_DESCR("number of alternate configurations"), 499 NULL, 0, 500 &sc->sc_alt_config, sizeof(sc->sc_alt_config), 501 CTL_HW, node->sysctl_num, 502 CTL_CREATE, CTL_EOL); 503 504 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 505 CTLFLAG_READONLY, 506 CTLTYPE_INT, "sco_rxsize", 507 SYSCTL_DESCR("max SCO receive size"), 508 NULL, 0, 509 &sc->sc_scord_size, sizeof(sc->sc_scord_size), 510 CTL_HW, node->sysctl_num, 511 CTL_CREATE, CTL_EOL); 512 513 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 514 CTLFLAG_READONLY, 515 CTLTYPE_INT, "sco_txsize", 516 SYSCTL_DESCR("max SCO transmit size"), 517 NULL, 0, 518 &sc->sc_scowr_size, sizeof(sc->sc_scowr_size), 519 CTL_HW, node->sysctl_num, 520 CTL_CREATE, CTL_EOL); 521 } 522 523 sc->sc_ok = 1; 524 if (!pmf_device_register(self, NULL, NULL)) 525 aprint_error_dev(self, "couldn't establish power handler\n"); 526 USB_ATTACH_SUCCESS_RETURN; 527 } 528 529 USB_DETACH(ubt) 530 { 531 USB_DETACH_START(ubt, sc); 532 int s; 533 534 DPRINTF("sc=%p flags=%d\n", sc, flags); 535 536 if (device_pmf_is_registered(self)) 537 pmf_device_deregister(self); 538 539 sc->sc_dying = 1; 540 541 if (!sc->sc_ok) 542 return 0; 543 544 /* delete sysctl nodes */ 545 sysctl_teardown(&sc->sc_log); 546 547 /* Detach HCI interface */ 548 if (sc->sc_unit) { 549 hci_detach(sc->sc_unit); 550 sc->sc_unit = NULL; 551 } 552 553 /* 554 * Abort all pipes. Causes processes waiting for transfer to wake. 555 * 556 * Actually, hci_detach() above will call ubt_disable() which may 557 * call ubt_abortdealloc(), but lets be sure since doing it twice 558 * wont cause an error. 559 */ 560 ubt_abortdealloc(sc); 561 562 /* wait for all processes to finish */ 563 s = splusb(); 564 if (sc->sc_refcnt-- > 0) 565 usb_detach_wait(USBDEV(sc->sc_dev)); 566 567 splx(s); 568 569 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 570 USBDEV(sc->sc_dev)); 571 572 DPRINTFN(1, "driver detached\n"); 573 574 return 0; 575 } 576 577 int 578 ubt_activate(device_ptr_t self, enum devact act) 579 { 580 struct ubt_softc *sc = USBGETSOFTC(self); 581 int error = 0; 582 583 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 584 585 switch (act) { 586 case DVACT_ACTIVATE: 587 break; 588 589 case DVACT_DEACTIVATE: 590 sc->sc_dying = 1; 591 break; 592 593 default: 594 error = EOPNOTSUPP; 595 break; 596 } 597 598 return error; 599 } 600 601 /* set ISOC configuration */ 602 static int 603 ubt_set_isoc_config(struct ubt_softc *sc) 604 { 605 usb_endpoint_descriptor_t *ed; 606 int rd_addr, wr_addr, rd_size, wr_size; 607 uint8_t count, i; 608 int err; 609 610 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 611 if (err != USBD_NORMAL_COMPLETION) { 612 aprint_error_dev(sc->sc_dev, 613 "Could not set config %d on ISOC interface. %s (%d)\n", 614 sc->sc_config, usbd_errstr(err), err); 615 616 return err == USBD_IN_USE ? EBUSY : EIO; 617 } 618 619 /* 620 * We wont get past the above if there are any pipes open, so no 621 * need to worry about buf/xfer/pipe deallocation. If we get an 622 * error after this, the frame quantities will be 0 and no SCO 623 * data will be possible. 624 */ 625 626 sc->sc_scord_size = rd_size = 0; 627 sc->sc_scord_addr = rd_addr = -1; 628 629 sc->sc_scowr_size = wr_size = 0; 630 sc->sc_scowr_addr = wr_addr = -1; 631 632 count = 0; 633 (void)usbd_endpoint_count(sc->sc_iface1, &count); 634 635 for (i = 0 ; i < count ; i++) { 636 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 637 if (ed == NULL) { 638 aprint_error_dev(sc->sc_dev, 639 "could not read endpoint descriptor %d\n", i); 640 641 return EIO; 642 } 643 644 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 645 USBDEVNAME(sc->sc_dev), 646 UE_GET_XFERTYPE(ed->bmAttributes), 647 UE_GET_ISO_TYPE(ed->bmAttributes), 648 ed->bEndpointAddress, 649 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 650 651 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 652 continue; 653 654 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 655 rd_addr = ed->bEndpointAddress; 656 rd_size = UGETW(ed->wMaxPacketSize); 657 } else { 658 wr_addr = ed->bEndpointAddress; 659 wr_size = UGETW(ed->wMaxPacketSize); 660 } 661 } 662 663 if (rd_addr == -1) { 664 aprint_error_dev(sc->sc_dev, 665 "missing ISOC IN endpoint on interface config %d\n", 666 sc->sc_config); 667 668 return ENOENT; 669 } 670 if (wr_addr == -1) { 671 aprint_error_dev(sc->sc_dev, 672 "missing ISOC OUT endpoint on interface config %d\n", 673 sc->sc_config); 674 675 return ENOENT; 676 } 677 678 #ifdef DIAGNOSTIC 679 if (rd_size > MLEN) { 680 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 681 rd_size); 682 683 return EOVERFLOW; 684 } 685 686 if (wr_size > MLEN) { 687 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 688 wr_size); 689 690 return EOVERFLOW; 691 } 692 #endif 693 694 sc->sc_scord_size = rd_size; 695 sc->sc_scord_addr = rd_addr; 696 697 sc->sc_scowr_size = wr_size; 698 sc->sc_scowr_addr = wr_addr; 699 700 return 0; 701 } 702 703 /* sysctl helper to set alternate configurations */ 704 static int 705 ubt_sysctl_config(SYSCTLFN_ARGS) 706 { 707 struct sysctlnode node; 708 struct ubt_softc *sc; 709 int t, error; 710 711 node = *rnode; 712 sc = node.sysctl_data; 713 714 t = sc->sc_config; 715 node.sysctl_data = &t; 716 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 717 if (error || newp == NULL) 718 return error; 719 720 if (t < 0 || t >= sc->sc_alt_config) 721 return EINVAL; 722 723 /* This may not change when the unit is enabled */ 724 if (sc->sc_enabled) 725 return EBUSY; 726 727 sc->sc_config = t; 728 return ubt_set_isoc_config(sc); 729 } 730 731 static void 732 ubt_abortdealloc(struct ubt_softc *sc) 733 { 734 int i; 735 736 DPRINTFN(1, "sc=%p\n", sc); 737 738 /* Abort all pipes */ 739 usbd_abort_default_pipe(sc->sc_udev); 740 741 if (sc->sc_evt_pipe != NULL) { 742 usbd_abort_pipe(sc->sc_evt_pipe); 743 usbd_close_pipe(sc->sc_evt_pipe); 744 sc->sc_evt_pipe = NULL; 745 } 746 747 if (sc->sc_aclrd_pipe != NULL) { 748 usbd_abort_pipe(sc->sc_aclrd_pipe); 749 usbd_close_pipe(sc->sc_aclrd_pipe); 750 sc->sc_aclrd_pipe = NULL; 751 } 752 753 if (sc->sc_aclwr_pipe != NULL) { 754 usbd_abort_pipe(sc->sc_aclwr_pipe); 755 usbd_close_pipe(sc->sc_aclwr_pipe); 756 sc->sc_aclwr_pipe = NULL; 757 } 758 759 if (sc->sc_scord_pipe != NULL) { 760 usbd_abort_pipe(sc->sc_scord_pipe); 761 usbd_close_pipe(sc->sc_scord_pipe); 762 sc->sc_scord_pipe = NULL; 763 } 764 765 if (sc->sc_scowr_pipe != NULL) { 766 usbd_abort_pipe(sc->sc_scowr_pipe); 767 usbd_close_pipe(sc->sc_scowr_pipe); 768 sc->sc_scowr_pipe = NULL; 769 } 770 771 /* Free event buffer */ 772 if (sc->sc_evt_buf != NULL) { 773 free(sc->sc_evt_buf, M_USBDEV); 774 sc->sc_evt_buf = NULL; 775 } 776 777 /* Free all xfers and xfer buffers (implicit) */ 778 if (sc->sc_cmd_xfer != NULL) { 779 usbd_free_xfer(sc->sc_cmd_xfer); 780 sc->sc_cmd_xfer = NULL; 781 sc->sc_cmd_buf = NULL; 782 } 783 784 if (sc->sc_aclrd_xfer != NULL) { 785 usbd_free_xfer(sc->sc_aclrd_xfer); 786 sc->sc_aclrd_xfer = NULL; 787 sc->sc_aclrd_buf = NULL; 788 } 789 790 if (sc->sc_aclwr_xfer != NULL) { 791 usbd_free_xfer(sc->sc_aclwr_xfer); 792 sc->sc_aclwr_xfer = NULL; 793 sc->sc_aclwr_buf = NULL; 794 } 795 796 for (i = 0 ; i < UBT_NXFERS ; i++) { 797 if (sc->sc_scord[i].xfer != NULL) { 798 usbd_free_xfer(sc->sc_scord[i].xfer); 799 sc->sc_scord[i].xfer = NULL; 800 sc->sc_scord[i].buf = NULL; 801 } 802 803 if (sc->sc_scowr[i].xfer != NULL) { 804 usbd_free_xfer(sc->sc_scowr[i].xfer); 805 sc->sc_scowr[i].xfer = NULL; 806 sc->sc_scowr[i].buf = NULL; 807 } 808 } 809 810 /* Free partial SCO packets */ 811 if (sc->sc_scord_mbuf != NULL) { 812 m_freem(sc->sc_scord_mbuf); 813 sc->sc_scord_mbuf = NULL; 814 } 815 816 if (sc->sc_scowr_mbuf != NULL) { 817 m_freem(sc->sc_scowr_mbuf); 818 sc->sc_scowr_mbuf = NULL; 819 } 820 821 /* Empty mbuf queues */ 822 MBUFQ_DRAIN(&sc->sc_cmd_queue); 823 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 824 MBUFQ_DRAIN(&sc->sc_scowr_queue); 825 } 826 827 /******************************************************************************* 828 * 829 * Bluetooth Unit/USB callbacks 830 * 831 */ 832 static int 833 ubt_enable(device_ptr_t self) 834 { 835 struct ubt_softc *sc = USBGETSOFTC(self); 836 usbd_status err; 837 int s, i, error; 838 839 DPRINTFN(1, "sc=%p\n", sc); 840 841 if (sc->sc_enabled) 842 return 0; 843 844 s = splusb(); 845 846 /* Events */ 847 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 848 if (sc->sc_evt_buf == NULL) { 849 error = ENOMEM; 850 goto bad; 851 } 852 err = usbd_open_pipe_intr(sc->sc_iface0, 853 sc->sc_evt_addr, 854 USBD_SHORT_XFER_OK, 855 &sc->sc_evt_pipe, 856 sc, 857 sc->sc_evt_buf, 858 UBT_BUFSIZ_EVENT, 859 ubt_recv_event, 860 USBD_DEFAULT_INTERVAL); 861 if (err != USBD_NORMAL_COMPLETION) { 862 error = EIO; 863 goto bad; 864 } 865 866 /* Commands */ 867 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 868 if (sc->sc_cmd_xfer == NULL) { 869 error = ENOMEM; 870 goto bad; 871 } 872 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 873 if (sc->sc_cmd_buf == NULL) { 874 error = ENOMEM; 875 goto bad; 876 } 877 sc->sc_cmd_busy = 0; 878 879 /* ACL read */ 880 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 881 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 882 if (err != USBD_NORMAL_COMPLETION) { 883 error = EIO; 884 goto bad; 885 } 886 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 887 if (sc->sc_aclrd_xfer == NULL) { 888 error = ENOMEM; 889 goto bad; 890 } 891 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 892 if (sc->sc_aclrd_buf == NULL) { 893 error = ENOMEM; 894 goto bad; 895 } 896 sc->sc_aclrd_busy = 0; 897 ubt_recv_acl_start(sc); 898 899 /* ACL write */ 900 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 901 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 902 if (err != USBD_NORMAL_COMPLETION) { 903 error = EIO; 904 goto bad; 905 } 906 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 907 if (sc->sc_aclwr_xfer == NULL) { 908 error = ENOMEM; 909 goto bad; 910 } 911 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 912 if (sc->sc_aclwr_buf == NULL) { 913 error = ENOMEM; 914 goto bad; 915 } 916 sc->sc_aclwr_busy = 0; 917 918 /* SCO read */ 919 if (sc->sc_scord_size > 0) { 920 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 921 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 922 if (err != USBD_NORMAL_COMPLETION) { 923 error = EIO; 924 goto bad; 925 } 926 927 for (i = 0 ; i < UBT_NXFERS ; i++) { 928 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 929 if (sc->sc_scord[i].xfer == NULL) { 930 error = ENOMEM; 931 goto bad; 932 } 933 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 934 sc->sc_scord_size * UBT_NFRAMES); 935 if (sc->sc_scord[i].buf == NULL) { 936 error = ENOMEM; 937 goto bad; 938 } 939 sc->sc_scord[i].softc = sc; 940 sc->sc_scord[i].busy = 0; 941 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 942 } 943 } 944 945 /* SCO write */ 946 if (sc->sc_scowr_size > 0) { 947 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 948 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 949 if (err != USBD_NORMAL_COMPLETION) { 950 error = EIO; 951 goto bad; 952 } 953 954 for (i = 0 ; i < UBT_NXFERS ; i++) { 955 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 956 if (sc->sc_scowr[i].xfer == NULL) { 957 error = ENOMEM; 958 goto bad; 959 } 960 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 961 sc->sc_scowr_size * UBT_NFRAMES); 962 if (sc->sc_scowr[i].buf == NULL) { 963 error = ENOMEM; 964 goto bad; 965 } 966 sc->sc_scowr[i].softc = sc; 967 sc->sc_scowr[i].busy = 0; 968 } 969 970 sc->sc_scowr_busy = 0; 971 } 972 973 sc->sc_enabled = 1; 974 splx(s); 975 return 0; 976 977 bad: 978 ubt_abortdealloc(sc); 979 splx(s); 980 return error; 981 } 982 983 static void 984 ubt_disable(device_ptr_t self) 985 { 986 struct ubt_softc *sc = USBGETSOFTC(self); 987 int s; 988 989 DPRINTFN(1, "sc=%p\n", sc); 990 991 if (sc->sc_enabled == 0) 992 return; 993 994 s = splusb(); 995 ubt_abortdealloc(sc); 996 997 sc->sc_enabled = 0; 998 splx(s); 999 } 1000 1001 static void 1002 ubt_xmit_cmd(device_ptr_t self, struct mbuf *m) 1003 { 1004 struct ubt_softc *sc = USBGETSOFTC(self); 1005 int s; 1006 1007 KASSERT(sc->sc_enabled); 1008 1009 s = splusb(); 1010 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1011 1012 if (sc->sc_cmd_busy == 0) 1013 ubt_xmit_cmd_start(sc); 1014 1015 splx(s); 1016 } 1017 1018 static void 1019 ubt_xmit_cmd_start(struct ubt_softc *sc) 1020 { 1021 usb_device_request_t req; 1022 usbd_status status; 1023 struct mbuf *m; 1024 int len; 1025 1026 if (sc->sc_dying) 1027 return; 1028 1029 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1030 return; 1031 1032 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1033 KASSERT(m != NULL); 1034 1035 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1036 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1037 1038 sc->sc_refcnt++; 1039 sc->sc_cmd_busy = 1; 1040 1041 len = m->m_pkthdr.len - 1; 1042 m_copydata(m, 1, len, sc->sc_cmd_buf); 1043 m_freem(m); 1044 1045 memset(&req, 0, sizeof(req)); 1046 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1047 USETW(req.wLength, len); 1048 1049 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1050 sc->sc_udev, 1051 sc, 1052 UBT_CMD_TIMEOUT, 1053 &req, 1054 sc->sc_cmd_buf, 1055 len, 1056 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1057 ubt_xmit_cmd_complete); 1058 1059 status = usbd_transfer(sc->sc_cmd_xfer); 1060 1061 KASSERT(status != USBD_NORMAL_COMPLETION); 1062 1063 if (status != USBD_IN_PROGRESS) { 1064 DPRINTF("usbd_transfer status=%s (%d)\n", 1065 usbd_errstr(status), status); 1066 1067 sc->sc_refcnt--; 1068 sc->sc_cmd_busy = 0; 1069 } 1070 } 1071 1072 static void 1073 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1074 usbd_private_handle h, usbd_status status) 1075 { 1076 struct ubt_softc *sc = h; 1077 uint32_t count; 1078 1079 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1080 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1081 1082 sc->sc_cmd_busy = 0; 1083 1084 if (--sc->sc_refcnt < 0) { 1085 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1086 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1087 return; 1088 } 1089 1090 if (sc->sc_dying) { 1091 DPRINTF("sc_dying\n"); 1092 return; 1093 } 1094 1095 if (status != USBD_NORMAL_COMPLETION) { 1096 DPRINTF("status=%s (%d)\n", 1097 usbd_errstr(status), status); 1098 1099 sc->sc_stats.err_tx++; 1100 return; 1101 } 1102 1103 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1104 sc->sc_stats.cmd_tx++; 1105 sc->sc_stats.byte_tx += count; 1106 1107 ubt_xmit_cmd_start(sc); 1108 } 1109 1110 static void 1111 ubt_xmit_acl(device_ptr_t self, struct mbuf *m) 1112 { 1113 struct ubt_softc *sc = USBGETSOFTC(self); 1114 int s; 1115 1116 KASSERT(sc->sc_enabled); 1117 1118 s = splusb(); 1119 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1120 1121 if (sc->sc_aclwr_busy == 0) 1122 ubt_xmit_acl_start(sc); 1123 1124 splx(s); 1125 } 1126 1127 static void 1128 ubt_xmit_acl_start(struct ubt_softc *sc) 1129 { 1130 struct mbuf *m; 1131 usbd_status status; 1132 int len; 1133 1134 if (sc->sc_dying) 1135 return; 1136 1137 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1138 return; 1139 1140 sc->sc_refcnt++; 1141 sc->sc_aclwr_busy = 1; 1142 1143 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1144 KASSERT(m != NULL); 1145 1146 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1147 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1148 1149 len = m->m_pkthdr.len - 1; 1150 if (len > UBT_BUFSIZ_ACL) { 1151 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1152 USBDEVNAME(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1153 1154 len = UBT_BUFSIZ_ACL; 1155 } 1156 1157 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1158 m_freem(m); 1159 1160 sc->sc_stats.acl_tx++; 1161 sc->sc_stats.byte_tx += len; 1162 1163 usbd_setup_xfer(sc->sc_aclwr_xfer, 1164 sc->sc_aclwr_pipe, 1165 sc, 1166 sc->sc_aclwr_buf, 1167 len, 1168 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1169 UBT_ACL_TIMEOUT, 1170 ubt_xmit_acl_complete); 1171 1172 status = usbd_transfer(sc->sc_aclwr_xfer); 1173 1174 KASSERT(status != USBD_NORMAL_COMPLETION); 1175 1176 if (status != USBD_IN_PROGRESS) { 1177 DPRINTF("usbd_transfer status=%s (%d)\n", 1178 usbd_errstr(status), status); 1179 1180 sc->sc_refcnt--; 1181 sc->sc_aclwr_busy = 0; 1182 } 1183 } 1184 1185 static void 1186 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1187 usbd_private_handle h, usbd_status status) 1188 { 1189 struct ubt_softc *sc = h; 1190 1191 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1192 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1193 1194 sc->sc_aclwr_busy = 0; 1195 1196 if (--sc->sc_refcnt < 0) { 1197 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1198 return; 1199 } 1200 1201 if (sc->sc_dying) 1202 return; 1203 1204 if (status != USBD_NORMAL_COMPLETION) { 1205 DPRINTF("status=%s (%d)\n", 1206 usbd_errstr(status), status); 1207 1208 sc->sc_stats.err_tx++; 1209 1210 if (status == USBD_STALLED) 1211 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1212 else 1213 return; 1214 } 1215 1216 ubt_xmit_acl_start(sc); 1217 } 1218 1219 static void 1220 ubt_xmit_sco(device_ptr_t self, struct mbuf *m) 1221 { 1222 struct ubt_softc *sc = USBGETSOFTC(self); 1223 int s; 1224 1225 KASSERT(sc->sc_enabled); 1226 1227 s = splusb(); 1228 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1229 1230 if (sc->sc_scowr_busy == 0) 1231 ubt_xmit_sco_start(sc); 1232 1233 splx(s); 1234 } 1235 1236 static void 1237 ubt_xmit_sco_start(struct ubt_softc *sc) 1238 { 1239 int i; 1240 1241 if (sc->sc_dying || sc->sc_scowr_size == 0) 1242 return; 1243 1244 for (i = 0 ; i < UBT_NXFERS ; i++) { 1245 if (sc->sc_scowr[i].busy) 1246 continue; 1247 1248 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1249 } 1250 } 1251 1252 static void 1253 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1254 { 1255 struct mbuf *m; 1256 uint8_t *buf; 1257 int num, len, size, space; 1258 1259 space = sc->sc_scowr_size * UBT_NFRAMES; 1260 buf = isoc->buf; 1261 len = 0; 1262 1263 /* 1264 * Fill the request buffer with data from the queue, 1265 * keeping any leftover packet on our private hook. 1266 * 1267 * Complete packets are passed back up to the stack 1268 * for disposal, since we can't rely on the controller 1269 * to tell us when it has finished with them. 1270 */ 1271 1272 m = sc->sc_scowr_mbuf; 1273 while (space > 0) { 1274 if (m == NULL) { 1275 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1276 if (m == NULL) 1277 break; 1278 1279 m_adj(m, 1); /* packet type */ 1280 } 1281 1282 if (m->m_pkthdr.len > 0) { 1283 size = MIN(m->m_pkthdr.len, space); 1284 1285 m_copydata(m, 0, size, buf); 1286 m_adj(m, size); 1287 1288 buf += size; 1289 len += size; 1290 space -= size; 1291 } 1292 1293 if (m->m_pkthdr.len == 0) { 1294 sc->sc_stats.sco_tx++; 1295 if (!hci_complete_sco(sc->sc_unit, m)) 1296 sc->sc_stats.err_tx++; 1297 1298 m = NULL; 1299 } 1300 } 1301 sc->sc_scowr_mbuf = m; 1302 1303 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1304 1305 if (len == 0) /* nothing to send */ 1306 return; 1307 1308 sc->sc_refcnt++; 1309 sc->sc_scowr_busy = 1; 1310 sc->sc_stats.byte_tx += len; 1311 isoc->busy = 1; 1312 1313 /* 1314 * calculate number of isoc frames and sizes 1315 */ 1316 1317 for (num = 0 ; len > 0 ; num++) { 1318 size = MIN(sc->sc_scowr_size, len); 1319 1320 isoc->size[num] = size; 1321 len -= size; 1322 } 1323 1324 usbd_setup_isoc_xfer(isoc->xfer, 1325 sc->sc_scowr_pipe, 1326 isoc, 1327 isoc->size, 1328 num, 1329 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1330 ubt_xmit_sco_complete); 1331 1332 usbd_transfer(isoc->xfer); 1333 } 1334 1335 static void 1336 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1337 usbd_private_handle h, usbd_status status) 1338 { 1339 struct ubt_isoc_xfer *isoc = h; 1340 struct ubt_softc *sc; 1341 int i; 1342 1343 KASSERT(xfer == isoc->xfer); 1344 sc = isoc->softc; 1345 1346 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1347 isoc, usbd_errstr(status), status); 1348 1349 isoc->busy = 0; 1350 1351 for (i = 0 ; ; i++) { 1352 if (i == UBT_NXFERS) { 1353 sc->sc_scowr_busy = 0; 1354 break; 1355 } 1356 1357 if (sc->sc_scowr[i].busy) 1358 break; 1359 } 1360 1361 if (--sc->sc_refcnt < 0) { 1362 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1363 return; 1364 } 1365 1366 if (sc->sc_dying) 1367 return; 1368 1369 if (status != USBD_NORMAL_COMPLETION) { 1370 DPRINTF("status=%s (%d)\n", 1371 usbd_errstr(status), status); 1372 1373 sc->sc_stats.err_tx++; 1374 1375 if (status == USBD_STALLED) 1376 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1377 else 1378 return; 1379 } 1380 1381 ubt_xmit_sco_start(sc); 1382 } 1383 1384 /* 1385 * load incoming data into an mbuf with 1386 * leading type byte 1387 */ 1388 static struct mbuf * 1389 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1390 { 1391 struct mbuf *m; 1392 1393 MGETHDR(m, M_DONTWAIT, MT_DATA); 1394 if (m == NULL) 1395 return NULL; 1396 1397 *mtod(m, uint8_t *) = type; 1398 m->m_pkthdr.len = m->m_len = MHLEN; 1399 m_copyback(m, 1, count, buf); // (extends if necessary) 1400 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1401 m_free(m); 1402 return NULL; 1403 } 1404 1405 m->m_pkthdr.len = count + 1; 1406 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1407 1408 return m; 1409 } 1410 1411 static void 1412 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1413 { 1414 struct ubt_softc *sc = h; 1415 struct mbuf *m; 1416 uint32_t count; 1417 void *buf; 1418 1419 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1420 sc, usbd_errstr(status), status); 1421 1422 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1423 return; 1424 1425 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1426 1427 if (count < sizeof(hci_event_hdr_t) - 1) { 1428 DPRINTF("dumped undersized event (count = %d)\n", count); 1429 sc->sc_stats.err_rx++; 1430 return; 1431 } 1432 1433 sc->sc_stats.evt_rx++; 1434 sc->sc_stats.byte_rx += count; 1435 1436 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1437 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1438 sc->sc_stats.err_rx++; 1439 } 1440 1441 static void 1442 ubt_recv_acl_start(struct ubt_softc *sc) 1443 { 1444 usbd_status status; 1445 1446 DPRINTFN(15, "sc=%p\n", sc); 1447 1448 if (sc->sc_aclrd_busy || sc->sc_dying) { 1449 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1450 sc->sc_aclrd_busy, 1451 sc->sc_dying); 1452 1453 return; 1454 } 1455 1456 sc->sc_refcnt++; 1457 sc->sc_aclrd_busy = 1; 1458 1459 usbd_setup_xfer(sc->sc_aclrd_xfer, 1460 sc->sc_aclrd_pipe, 1461 sc, 1462 sc->sc_aclrd_buf, 1463 UBT_BUFSIZ_ACL, 1464 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1465 USBD_NO_TIMEOUT, 1466 ubt_recv_acl_complete); 1467 1468 status = usbd_transfer(sc->sc_aclrd_xfer); 1469 1470 KASSERT(status != USBD_NORMAL_COMPLETION); 1471 1472 if (status != USBD_IN_PROGRESS) { 1473 DPRINTF("usbd_transfer status=%s (%d)\n", 1474 usbd_errstr(status), status); 1475 1476 sc->sc_refcnt--; 1477 sc->sc_aclrd_busy = 0; 1478 } 1479 } 1480 1481 static void 1482 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1483 usbd_private_handle h, usbd_status status) 1484 { 1485 struct ubt_softc *sc = h; 1486 struct mbuf *m; 1487 uint32_t count; 1488 void *buf; 1489 1490 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1491 sc, usbd_errstr(status), status); 1492 1493 sc->sc_aclrd_busy = 0; 1494 1495 if (--sc->sc_refcnt < 0) { 1496 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1497 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1498 return; 1499 } 1500 1501 if (sc->sc_dying) { 1502 DPRINTF("sc_dying\n"); 1503 return; 1504 } 1505 1506 if (status != USBD_NORMAL_COMPLETION) { 1507 DPRINTF("status=%s (%d)\n", 1508 usbd_errstr(status), status); 1509 1510 sc->sc_stats.err_rx++; 1511 1512 if (status == USBD_STALLED) 1513 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1514 else 1515 return; 1516 } else { 1517 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1518 1519 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1520 DPRINTF("dumped undersized packet (%d)\n", count); 1521 sc->sc_stats.err_rx++; 1522 } else { 1523 sc->sc_stats.acl_rx++; 1524 sc->sc_stats.byte_rx += count; 1525 1526 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1527 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1528 sc->sc_stats.err_rx++; 1529 } 1530 } 1531 1532 /* and restart */ 1533 ubt_recv_acl_start(sc); 1534 } 1535 1536 static void 1537 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1538 { 1539 int i; 1540 1541 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1542 1543 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1544 DPRINTF("%s%s%s\n", 1545 isoc->busy ? " busy" : "", 1546 sc->sc_dying ? " dying" : "", 1547 sc->sc_scord_size == 0 ? " size=0" : ""); 1548 1549 return; 1550 } 1551 1552 sc->sc_refcnt++; 1553 isoc->busy = 1; 1554 1555 for (i = 0 ; i < UBT_NFRAMES ; i++) 1556 isoc->size[i] = sc->sc_scord_size; 1557 1558 usbd_setup_isoc_xfer(isoc->xfer, 1559 sc->sc_scord_pipe, 1560 isoc, 1561 isoc->size, 1562 UBT_NFRAMES, 1563 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1564 ubt_recv_sco_complete); 1565 1566 usbd_transfer(isoc->xfer); 1567 } 1568 1569 static void 1570 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1571 usbd_private_handle h, usbd_status status) 1572 { 1573 struct ubt_isoc_xfer *isoc = h; 1574 struct ubt_softc *sc; 1575 struct mbuf *m; 1576 uint32_t count; 1577 uint8_t *ptr, *frame; 1578 int i, size, got, want; 1579 1580 KASSERT(isoc != NULL); 1581 KASSERT(isoc->xfer == xfer); 1582 1583 sc = isoc->softc; 1584 isoc->busy = 0; 1585 1586 if (--sc->sc_refcnt < 0) { 1587 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1588 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1589 return; 1590 } 1591 1592 if (sc->sc_dying) { 1593 DPRINTF("sc_dying\n"); 1594 return; 1595 } 1596 1597 if (status != USBD_NORMAL_COMPLETION) { 1598 DPRINTF("status=%s (%d)\n", 1599 usbd_errstr(status), status); 1600 1601 sc->sc_stats.err_rx++; 1602 1603 if (status == USBD_STALLED) { 1604 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1605 goto restart; 1606 } 1607 1608 return; 1609 } 1610 1611 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1612 if (count == 0) 1613 goto restart; 1614 1615 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1616 sc, isoc, count); 1617 1618 sc->sc_stats.byte_rx += count; 1619 1620 /* 1621 * Extract SCO packets from ISOC frames. The way we have it, 1622 * no SCO packet can be bigger than MHLEN. This is unlikely 1623 * to actually happen, but if we ran out of mbufs and lost 1624 * sync then we may get spurious data that makes it seem that 1625 * way, so we discard data that wont fit. This doesnt really 1626 * help with the lost sync situation alas. 1627 */ 1628 1629 m = sc->sc_scord_mbuf; 1630 if (m != NULL) { 1631 sc->sc_scord_mbuf = NULL; 1632 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1633 got = m->m_pkthdr.len; 1634 want = sizeof(hci_scodata_hdr_t); 1635 if (got >= want) 1636 want += mtod(m, hci_scodata_hdr_t *)->length ; 1637 } else { 1638 ptr = NULL; 1639 got = 0; 1640 want = 0; 1641 } 1642 1643 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1644 frame = isoc->buf + (i * sc->sc_scord_size); 1645 1646 while (isoc->size[i] > 0) { 1647 size = isoc->size[i]; 1648 1649 if (m == NULL) { 1650 MGETHDR(m, M_DONTWAIT, MT_DATA); 1651 if (m == NULL) { 1652 aprint_error_dev(sc->sc_dev, 1653 "out of memory (xfer halted)\n"); 1654 1655 sc->sc_stats.err_rx++; 1656 return; /* lost sync */ 1657 } 1658 1659 ptr = mtod(m, uint8_t *); 1660 *ptr++ = HCI_SCO_DATA_PKT; 1661 got = 1; 1662 want = sizeof(hci_scodata_hdr_t); 1663 } 1664 1665 if (got + size > want) 1666 size = want - got; 1667 1668 if (got + size > MHLEN) 1669 memcpy(ptr, frame, MHLEN - got); 1670 else 1671 memcpy(ptr, frame, size); 1672 1673 ptr += size; 1674 got += size; 1675 frame += size; 1676 1677 if (got == want) { 1678 /* 1679 * If we only got a header, add the packet 1680 * length to our want count. Send complete 1681 * packets up to protocol stack. 1682 */ 1683 if (want == sizeof(hci_scodata_hdr_t)) 1684 want += mtod(m, hci_scodata_hdr_t *)->length; 1685 1686 if (got == want) { 1687 m->m_pkthdr.len = m->m_len = got; 1688 sc->sc_stats.sco_rx++; 1689 if (!hci_input_sco(sc->sc_unit, m)) 1690 sc->sc_stats.err_rx++; 1691 1692 m = NULL; 1693 } 1694 } 1695 1696 isoc->size[i] -= size; 1697 } 1698 } 1699 1700 if (m != NULL) { 1701 m->m_pkthdr.len = m->m_len = got; 1702 sc->sc_scord_mbuf = m; 1703 } 1704 1705 restart: /* and restart */ 1706 ubt_recv_sco_start1(sc, isoc); 1707 } 1708 1709 void 1710 ubt_stats(device_ptr_t self, struct bt_stats *dest, int flush) 1711 { 1712 struct ubt_softc *sc = USBGETSOFTC(self); 1713 int s; 1714 1715 s = splusb(); 1716 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1717 1718 if (flush) 1719 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1720 1721 splx(s); 1722 } 1723
Indexes created Wed Sep 24 05:09:52 GMT 2025