ubt.c revision 1.32.4.1
1 /* $NetBSD: ubt.c,v 1.32.4.1 2008/10/19 22:17:10 haad 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 1.32.4.1 2008/10/19 22:17:10 haad 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 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 347 USB_ATTACH_SETUP; 348 aprint_normal_dev(self, "%s\n", devinfop); 349 usbd_devinfo_free(devinfop); 350 351 /* 352 * Move the device into the configured state 353 */ 354 err = usbd_set_config_index(sc->sc_udev, 0, 1); 355 if (err) { 356 aprint_error_dev(self, "failed to set configuration idx 0: %s\n", 357 usbd_errstr(err)); 358 359 USB_ATTACH_ERROR_RETURN; 360 } 361 362 /* 363 * Interface 0 must have 3 endpoints 364 * 1) Interrupt endpoint to receive HCI events 365 * 2) Bulk IN endpoint to receive ACL data 366 * 3) Bulk OUT endpoint to send ACL data 367 */ 368 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface0); 369 if (err) { 370 aprint_error_dev(self, "Could not get interface 0 handle %s (%d)\n", 371 usbd_errstr(err), err); 372 373 USB_ATTACH_ERROR_RETURN; 374 } 375 376 sc->sc_evt_addr = -1; 377 sc->sc_aclrd_addr = -1; 378 sc->sc_aclwr_addr = -1; 379 380 count = 0; 381 (void)usbd_endpoint_count(sc->sc_iface0, &count); 382 383 for (i = 0 ; i < count ; i++) { 384 int dir, type; 385 386 ed = usbd_interface2endpoint_descriptor(sc->sc_iface0, i); 387 if (ed == NULL) { 388 aprint_error_dev(self, 389 "could not read endpoint descriptor %d\n", i); 390 391 USB_ATTACH_ERROR_RETURN; 392 } 393 394 dir = UE_GET_DIR(ed->bEndpointAddress); 395 type = UE_GET_XFERTYPE(ed->bmAttributes); 396 397 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 398 sc->sc_evt_addr = ed->bEndpointAddress; 399 else if (dir == UE_DIR_IN && type == UE_BULK) 400 sc->sc_aclrd_addr = ed->bEndpointAddress; 401 else if (dir == UE_DIR_OUT && type == UE_BULK) 402 sc->sc_aclwr_addr = ed->bEndpointAddress; 403 } 404 405 if (sc->sc_evt_addr == -1) { 406 aprint_error_dev(self, 407 "missing INTERRUPT endpoint on interface 0\n"); 408 409 USB_ATTACH_ERROR_RETURN; 410 } 411 if (sc->sc_aclrd_addr == -1) { 412 aprint_error_dev(self, 413 "missing BULK IN endpoint on interface 0\n"); 414 415 USB_ATTACH_ERROR_RETURN; 416 } 417 if (sc->sc_aclwr_addr == -1) { 418 aprint_error_dev(self, 419 "missing BULK OUT endpoint on interface 0\n"); 420 421 USB_ATTACH_ERROR_RETURN; 422 } 423 424 /* 425 * Interface 1 must have 2 endpoints 426 * 1) Isochronous IN endpoint to receive SCO data 427 * 2) Isochronous OUT endpoint to send SCO data 428 * 429 * and will have several configurations, which can be selected 430 * via a sysctl variable. We select config 0 to start, which 431 * means that no SCO data will be available. 432 */ 433 err = usbd_device2interface_handle(sc->sc_udev, 1, &sc->sc_iface1); 434 if (err) { 435 aprint_error_dev(self, 436 "Could not get interface 1 handle %s (%d)\n", 437 usbd_errstr(err), err); 438 439 USB_ATTACH_ERROR_RETURN; 440 } 441 442 cd = usbd_get_config_descriptor(sc->sc_udev); 443 if (cd == NULL) { 444 aprint_error_dev(self, "could not get config descriptor\n"); 445 446 USB_ATTACH_ERROR_RETURN; 447 } 448 449 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 450 451 /* set initial config */ 452 err = ubt_set_isoc_config(sc); 453 if (err) { 454 aprint_error_dev(self, "ISOC config failed\n"); 455 456 USB_ATTACH_ERROR_RETURN; 457 } 458 459 /* Attach HCI */ 460 sc->sc_unit = hci_attach(&ubt_hci, USBDEV(sc->sc_dev), 0); 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 sc->sc_ok = 1; 522 if (!pmf_device_register(self, NULL, NULL)) 523 aprint_error_dev(self, "couldn't establish power handler\n"); 524 USB_ATTACH_SUCCESS_RETURN; 525 } 526 527 USB_DETACH(ubt) 528 { 529 USB_DETACH_START(ubt, sc); 530 int s; 531 532 DPRINTF("sc=%p flags=%d\n", sc, flags); 533 534 if (device_pmf_is_registered(self)) 535 pmf_device_deregister(self); 536 537 sc->sc_dying = 1; 538 539 if (!sc->sc_ok) 540 return 0; 541 542 /* delete sysctl nodes */ 543 sysctl_teardown(&sc->sc_log); 544 545 /* Detach HCI interface */ 546 if (sc->sc_unit) { 547 hci_detach(sc->sc_unit); 548 sc->sc_unit = NULL; 549 } 550 551 /* 552 * Abort all pipes. Causes processes waiting for transfer to wake. 553 * 554 * Actually, hci_detach() above will call ubt_disable() which may 555 * call ubt_abortdealloc(), but lets be sure since doing it twice 556 * wont cause an error. 557 */ 558 ubt_abortdealloc(sc); 559 560 /* wait for all processes to finish */ 561 s = splusb(); 562 if (sc->sc_refcnt-- > 0) 563 usb_detach_wait(USBDEV(sc->sc_dev)); 564 565 splx(s); 566 567 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 568 USBDEV(sc->sc_dev)); 569 570 DPRINTFN(1, "driver detached\n"); 571 572 return 0; 573 } 574 575 int 576 ubt_activate(device_ptr_t self, enum devact act) 577 { 578 struct ubt_softc *sc = USBGETSOFTC(self); 579 int error = 0; 580 581 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 582 583 switch (act) { 584 case DVACT_ACTIVATE: 585 break; 586 587 case DVACT_DEACTIVATE: 588 sc->sc_dying = 1; 589 break; 590 591 default: 592 error = EOPNOTSUPP; 593 break; 594 } 595 596 return error; 597 } 598 599 /* set ISOC configuration */ 600 static int 601 ubt_set_isoc_config(struct ubt_softc *sc) 602 { 603 usb_endpoint_descriptor_t *ed; 604 int rd_addr, wr_addr, rd_size, wr_size; 605 uint8_t count, i; 606 int err; 607 608 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 609 if (err != USBD_NORMAL_COMPLETION) { 610 aprint_error_dev(sc->sc_dev, 611 "Could not set config %d on ISOC interface. %s (%d)\n", 612 sc->sc_config, usbd_errstr(err), err); 613 614 return err == USBD_IN_USE ? EBUSY : EIO; 615 } 616 617 /* 618 * We wont get past the above if there are any pipes open, so no 619 * need to worry about buf/xfer/pipe deallocation. If we get an 620 * error after this, the frame quantities will be 0 and no SCO 621 * data will be possible. 622 */ 623 624 sc->sc_scord_size = rd_size = 0; 625 sc->sc_scord_addr = rd_addr = -1; 626 627 sc->sc_scowr_size = wr_size = 0; 628 sc->sc_scowr_addr = wr_addr = -1; 629 630 count = 0; 631 (void)usbd_endpoint_count(sc->sc_iface1, &count); 632 633 for (i = 0 ; i < count ; i++) { 634 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 635 if (ed == NULL) { 636 aprint_error_dev(sc->sc_dev, 637 "could not read endpoint descriptor %d\n", i); 638 639 return EIO; 640 } 641 642 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 643 USBDEVNAME(sc->sc_dev), 644 UE_GET_XFERTYPE(ed->bmAttributes), 645 UE_GET_ISO_TYPE(ed->bmAttributes), 646 ed->bEndpointAddress, 647 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 648 649 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 650 continue; 651 652 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 653 rd_addr = ed->bEndpointAddress; 654 rd_size = UGETW(ed->wMaxPacketSize); 655 } else { 656 wr_addr = ed->bEndpointAddress; 657 wr_size = UGETW(ed->wMaxPacketSize); 658 } 659 } 660 661 if (rd_addr == -1) { 662 aprint_error_dev(sc->sc_dev, 663 "missing ISOC IN endpoint on interface config %d\n", 664 sc->sc_config); 665 666 return ENOENT; 667 } 668 if (wr_addr == -1) { 669 aprint_error_dev(sc->sc_dev, 670 "missing ISOC OUT endpoint on interface config %d\n", 671 sc->sc_config); 672 673 return ENOENT; 674 } 675 676 #ifdef DIAGNOSTIC 677 if (rd_size > MLEN) { 678 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 679 rd_size); 680 681 return EOVERFLOW; 682 } 683 684 if (wr_size > MLEN) { 685 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 686 wr_size); 687 688 return EOVERFLOW; 689 } 690 #endif 691 692 sc->sc_scord_size = rd_size; 693 sc->sc_scord_addr = rd_addr; 694 695 sc->sc_scowr_size = wr_size; 696 sc->sc_scowr_addr = wr_addr; 697 698 return 0; 699 } 700 701 /* sysctl helper to set alternate configurations */ 702 static int 703 ubt_sysctl_config(SYSCTLFN_ARGS) 704 { 705 struct sysctlnode node; 706 struct ubt_softc *sc; 707 int t, error; 708 709 node = *rnode; 710 sc = node.sysctl_data; 711 712 t = sc->sc_config; 713 node.sysctl_data = &t; 714 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 715 if (error || newp == NULL) 716 return error; 717 718 if (t < 0 || t >= sc->sc_alt_config) 719 return EINVAL; 720 721 /* This may not change when the unit is enabled */ 722 if (sc->sc_enabled) 723 return EBUSY; 724 725 sc->sc_config = t; 726 return ubt_set_isoc_config(sc); 727 } 728 729 static void 730 ubt_abortdealloc(struct ubt_softc *sc) 731 { 732 int i; 733 734 DPRINTFN(1, "sc=%p\n", sc); 735 736 /* Abort all pipes */ 737 if (sc->sc_evt_pipe != NULL) { 738 usbd_abort_pipe(sc->sc_evt_pipe); 739 usbd_close_pipe(sc->sc_evt_pipe); 740 sc->sc_evt_pipe = NULL; 741 } 742 743 if (sc->sc_aclrd_pipe != NULL) { 744 usbd_abort_pipe(sc->sc_aclrd_pipe); 745 usbd_close_pipe(sc->sc_aclrd_pipe); 746 sc->sc_aclrd_pipe = NULL; 747 } 748 749 if (sc->sc_aclwr_pipe != NULL) { 750 usbd_abort_pipe(sc->sc_aclwr_pipe); 751 usbd_close_pipe(sc->sc_aclwr_pipe); 752 sc->sc_aclwr_pipe = NULL; 753 } 754 755 if (sc->sc_scord_pipe != NULL) { 756 usbd_abort_pipe(sc->sc_scord_pipe); 757 usbd_close_pipe(sc->sc_scord_pipe); 758 sc->sc_scord_pipe = NULL; 759 } 760 761 if (sc->sc_scowr_pipe != NULL) { 762 usbd_abort_pipe(sc->sc_scowr_pipe); 763 usbd_close_pipe(sc->sc_scowr_pipe); 764 sc->sc_scowr_pipe = NULL; 765 } 766 767 /* Free event buffer */ 768 if (sc->sc_evt_buf != NULL) { 769 free(sc->sc_evt_buf, M_USBDEV); 770 sc->sc_evt_buf = NULL; 771 } 772 773 /* Free all xfers and xfer buffers (implicit) */ 774 if (sc->sc_cmd_xfer != NULL) { 775 usbd_free_xfer(sc->sc_cmd_xfer); 776 sc->sc_cmd_xfer = NULL; 777 sc->sc_cmd_buf = NULL; 778 } 779 780 if (sc->sc_aclrd_xfer != NULL) { 781 usbd_free_xfer(sc->sc_aclrd_xfer); 782 sc->sc_aclrd_xfer = NULL; 783 sc->sc_aclrd_buf = NULL; 784 } 785 786 if (sc->sc_aclwr_xfer != NULL) { 787 usbd_free_xfer(sc->sc_aclwr_xfer); 788 sc->sc_aclwr_xfer = NULL; 789 sc->sc_aclwr_buf = NULL; 790 } 791 792 for (i = 0 ; i < UBT_NXFERS ; i++) { 793 if (sc->sc_scord[i].xfer != NULL) { 794 usbd_free_xfer(sc->sc_scord[i].xfer); 795 sc->sc_scord[i].xfer = NULL; 796 sc->sc_scord[i].buf = NULL; 797 } 798 799 if (sc->sc_scowr[i].xfer != NULL) { 800 usbd_free_xfer(sc->sc_scowr[i].xfer); 801 sc->sc_scowr[i].xfer = NULL; 802 sc->sc_scowr[i].buf = NULL; 803 } 804 } 805 806 /* Free partial SCO packets */ 807 if (sc->sc_scord_mbuf != NULL) { 808 m_freem(sc->sc_scord_mbuf); 809 sc->sc_scord_mbuf = NULL; 810 } 811 812 if (sc->sc_scowr_mbuf != NULL) { 813 m_freem(sc->sc_scowr_mbuf); 814 sc->sc_scowr_mbuf = NULL; 815 } 816 817 /* Empty mbuf queues */ 818 MBUFQ_DRAIN(&sc->sc_cmd_queue); 819 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 820 MBUFQ_DRAIN(&sc->sc_scowr_queue); 821 } 822 823 /******************************************************************************* 824 * 825 * Bluetooth Unit/USB callbacks 826 * 827 */ 828 static int 829 ubt_enable(device_ptr_t self) 830 { 831 struct ubt_softc *sc = USBGETSOFTC(self); 832 usbd_status err; 833 int s, i, error; 834 835 DPRINTFN(1, "sc=%p\n", sc); 836 837 if (sc->sc_enabled) 838 return 0; 839 840 s = splusb(); 841 842 /* Events */ 843 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 844 if (sc->sc_evt_buf == NULL) { 845 error = ENOMEM; 846 goto bad; 847 } 848 err = usbd_open_pipe_intr(sc->sc_iface0, 849 sc->sc_evt_addr, 850 USBD_SHORT_XFER_OK, 851 &sc->sc_evt_pipe, 852 sc, 853 sc->sc_evt_buf, 854 UBT_BUFSIZ_EVENT, 855 ubt_recv_event, 856 USBD_DEFAULT_INTERVAL); 857 if (err != USBD_NORMAL_COMPLETION) { 858 error = EIO; 859 goto bad; 860 } 861 862 /* Commands */ 863 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 864 if (sc->sc_cmd_xfer == NULL) { 865 error = ENOMEM; 866 goto bad; 867 } 868 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 869 if (sc->sc_cmd_buf == NULL) { 870 error = ENOMEM; 871 goto bad; 872 } 873 sc->sc_cmd_busy = 0; 874 875 /* ACL read */ 876 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 877 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 878 if (err != USBD_NORMAL_COMPLETION) { 879 error = EIO; 880 goto bad; 881 } 882 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 883 if (sc->sc_aclrd_xfer == NULL) { 884 error = ENOMEM; 885 goto bad; 886 } 887 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 888 if (sc->sc_aclrd_buf == NULL) { 889 error = ENOMEM; 890 goto bad; 891 } 892 sc->sc_aclrd_busy = 0; 893 ubt_recv_acl_start(sc); 894 895 /* ACL write */ 896 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 897 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 898 if (err != USBD_NORMAL_COMPLETION) { 899 error = EIO; 900 goto bad; 901 } 902 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 903 if (sc->sc_aclwr_xfer == NULL) { 904 error = ENOMEM; 905 goto bad; 906 } 907 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 908 if (sc->sc_aclwr_buf == NULL) { 909 error = ENOMEM; 910 goto bad; 911 } 912 sc->sc_aclwr_busy = 0; 913 914 /* SCO read */ 915 if (sc->sc_scord_size > 0) { 916 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 917 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 918 if (err != USBD_NORMAL_COMPLETION) { 919 error = EIO; 920 goto bad; 921 } 922 923 for (i = 0 ; i < UBT_NXFERS ; i++) { 924 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 925 if (sc->sc_scord[i].xfer == NULL) { 926 error = ENOMEM; 927 goto bad; 928 } 929 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 930 sc->sc_scord_size * UBT_NFRAMES); 931 if (sc->sc_scord[i].buf == NULL) { 932 error = ENOMEM; 933 goto bad; 934 } 935 sc->sc_scord[i].softc = sc; 936 sc->sc_scord[i].busy = 0; 937 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 938 } 939 } 940 941 /* SCO write */ 942 if (sc->sc_scowr_size > 0) { 943 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 944 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 945 if (err != USBD_NORMAL_COMPLETION) { 946 error = EIO; 947 goto bad; 948 } 949 950 for (i = 0 ; i < UBT_NXFERS ; i++) { 951 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 952 if (sc->sc_scowr[i].xfer == NULL) { 953 error = ENOMEM; 954 goto bad; 955 } 956 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 957 sc->sc_scowr_size * UBT_NFRAMES); 958 if (sc->sc_scowr[i].buf == NULL) { 959 error = ENOMEM; 960 goto bad; 961 } 962 sc->sc_scowr[i].softc = sc; 963 sc->sc_scowr[i].busy = 0; 964 } 965 966 sc->sc_scowr_busy = 0; 967 } 968 969 sc->sc_enabled = 1; 970 splx(s); 971 return 0; 972 973 bad: 974 ubt_abortdealloc(sc); 975 splx(s); 976 return error; 977 } 978 979 static void 980 ubt_disable(device_ptr_t self) 981 { 982 struct ubt_softc *sc = USBGETSOFTC(self); 983 int s; 984 985 DPRINTFN(1, "sc=%p\n", sc); 986 987 if (sc->sc_enabled == 0) 988 return; 989 990 s = splusb(); 991 ubt_abortdealloc(sc); 992 993 sc->sc_enabled = 0; 994 splx(s); 995 } 996 997 static void 998 ubt_xmit_cmd(device_ptr_t self, struct mbuf *m) 999 { 1000 struct ubt_softc *sc = USBGETSOFTC(self); 1001 int s; 1002 1003 KASSERT(sc->sc_enabled); 1004 1005 s = splusb(); 1006 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1007 1008 if (sc->sc_cmd_busy == 0) 1009 ubt_xmit_cmd_start(sc); 1010 1011 splx(s); 1012 } 1013 1014 static void 1015 ubt_xmit_cmd_start(struct ubt_softc *sc) 1016 { 1017 usb_device_request_t req; 1018 usbd_status status; 1019 struct mbuf *m; 1020 int len; 1021 1022 if (sc->sc_dying) 1023 return; 1024 1025 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1026 return; 1027 1028 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1029 KASSERT(m != NULL); 1030 1031 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1032 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1033 1034 sc->sc_refcnt++; 1035 sc->sc_cmd_busy = 1; 1036 1037 len = m->m_pkthdr.len - 1; 1038 m_copydata(m, 1, len, sc->sc_cmd_buf); 1039 m_freem(m); 1040 1041 memset(&req, 0, sizeof(req)); 1042 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1043 USETW(req.wLength, len); 1044 1045 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1046 sc->sc_udev, 1047 sc, 1048 UBT_CMD_TIMEOUT, 1049 &req, 1050 sc->sc_cmd_buf, 1051 len, 1052 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1053 ubt_xmit_cmd_complete); 1054 1055 status = usbd_transfer(sc->sc_cmd_xfer); 1056 1057 KASSERT(status != USBD_NORMAL_COMPLETION); 1058 1059 if (status != USBD_IN_PROGRESS) { 1060 DPRINTF("usbd_transfer status=%s (%d)\n", 1061 usbd_errstr(status), status); 1062 1063 sc->sc_refcnt--; 1064 sc->sc_cmd_busy = 0; 1065 } 1066 } 1067 1068 static void 1069 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1070 usbd_private_handle h, usbd_status status) 1071 { 1072 struct ubt_softc *sc = h; 1073 uint32_t count; 1074 1075 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1076 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1077 1078 sc->sc_cmd_busy = 0; 1079 1080 if (--sc->sc_refcnt < 0) { 1081 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1082 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1083 return; 1084 } 1085 1086 if (sc->sc_dying) { 1087 DPRINTF("sc_dying\n"); 1088 return; 1089 } 1090 1091 if (status != USBD_NORMAL_COMPLETION) { 1092 DPRINTF("status=%s (%d)\n", 1093 usbd_errstr(status), status); 1094 1095 sc->sc_stats.err_tx++; 1096 return; 1097 } 1098 1099 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1100 sc->sc_stats.cmd_tx++; 1101 sc->sc_stats.byte_tx += count; 1102 1103 ubt_xmit_cmd_start(sc); 1104 } 1105 1106 static void 1107 ubt_xmit_acl(device_ptr_t self, struct mbuf *m) 1108 { 1109 struct ubt_softc *sc = USBGETSOFTC(self); 1110 int s; 1111 1112 KASSERT(sc->sc_enabled); 1113 1114 s = splusb(); 1115 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1116 1117 if (sc->sc_aclwr_busy == 0) 1118 ubt_xmit_acl_start(sc); 1119 1120 splx(s); 1121 } 1122 1123 static void 1124 ubt_xmit_acl_start(struct ubt_softc *sc) 1125 { 1126 struct mbuf *m; 1127 usbd_status status; 1128 int len; 1129 1130 if (sc->sc_dying) 1131 return; 1132 1133 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1134 return; 1135 1136 sc->sc_refcnt++; 1137 sc->sc_aclwr_busy = 1; 1138 1139 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1140 KASSERT(m != NULL); 1141 1142 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1143 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1144 1145 len = m->m_pkthdr.len - 1; 1146 if (len > UBT_BUFSIZ_ACL) { 1147 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1148 USBDEVNAME(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1149 1150 len = UBT_BUFSIZ_ACL; 1151 } 1152 1153 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1154 m_freem(m); 1155 1156 sc->sc_stats.acl_tx++; 1157 sc->sc_stats.byte_tx += len; 1158 1159 usbd_setup_xfer(sc->sc_aclwr_xfer, 1160 sc->sc_aclwr_pipe, 1161 sc, 1162 sc->sc_aclwr_buf, 1163 len, 1164 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1165 UBT_ACL_TIMEOUT, 1166 ubt_xmit_acl_complete); 1167 1168 status = usbd_transfer(sc->sc_aclwr_xfer); 1169 1170 KASSERT(status != USBD_NORMAL_COMPLETION); 1171 1172 if (status != USBD_IN_PROGRESS) { 1173 DPRINTF("usbd_transfer status=%s (%d)\n", 1174 usbd_errstr(status), status); 1175 1176 sc->sc_refcnt--; 1177 sc->sc_aclwr_busy = 0; 1178 } 1179 } 1180 1181 static void 1182 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1183 usbd_private_handle h, usbd_status status) 1184 { 1185 struct ubt_softc *sc = h; 1186 1187 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1188 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1189 1190 sc->sc_aclwr_busy = 0; 1191 1192 if (--sc->sc_refcnt < 0) { 1193 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1194 return; 1195 } 1196 1197 if (sc->sc_dying) 1198 return; 1199 1200 if (status != USBD_NORMAL_COMPLETION) { 1201 DPRINTF("status=%s (%d)\n", 1202 usbd_errstr(status), status); 1203 1204 sc->sc_stats.err_tx++; 1205 1206 if (status == USBD_STALLED) 1207 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1208 else 1209 return; 1210 } 1211 1212 ubt_xmit_acl_start(sc); 1213 } 1214 1215 static void 1216 ubt_xmit_sco(device_ptr_t self, struct mbuf *m) 1217 { 1218 struct ubt_softc *sc = USBGETSOFTC(self); 1219 int s; 1220 1221 KASSERT(sc->sc_enabled); 1222 1223 s = splusb(); 1224 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1225 1226 if (sc->sc_scowr_busy == 0) 1227 ubt_xmit_sco_start(sc); 1228 1229 splx(s); 1230 } 1231 1232 static void 1233 ubt_xmit_sco_start(struct ubt_softc *sc) 1234 { 1235 int i; 1236 1237 if (sc->sc_dying || sc->sc_scowr_size == 0) 1238 return; 1239 1240 for (i = 0 ; i < UBT_NXFERS ; i++) { 1241 if (sc->sc_scowr[i].busy) 1242 continue; 1243 1244 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1245 } 1246 } 1247 1248 static void 1249 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1250 { 1251 struct mbuf *m; 1252 uint8_t *buf; 1253 int num, len, size, space; 1254 1255 space = sc->sc_scowr_size * UBT_NFRAMES; 1256 buf = isoc->buf; 1257 len = 0; 1258 1259 /* 1260 * Fill the request buffer with data from the queue, 1261 * keeping any leftover packet on our private hook. 1262 * 1263 * Complete packets are passed back up to the stack 1264 * for disposal, since we can't rely on the controller 1265 * to tell us when it has finished with them. 1266 */ 1267 1268 m = sc->sc_scowr_mbuf; 1269 while (space > 0) { 1270 if (m == NULL) { 1271 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1272 if (m == NULL) 1273 break; 1274 1275 m_adj(m, 1); /* packet type */ 1276 } 1277 1278 if (m->m_pkthdr.len > 0) { 1279 size = MIN(m->m_pkthdr.len, space); 1280 1281 m_copydata(m, 0, size, buf); 1282 m_adj(m, size); 1283 1284 buf += size; 1285 len += size; 1286 space -= size; 1287 } 1288 1289 if (m->m_pkthdr.len == 0) { 1290 sc->sc_stats.sco_tx++; 1291 if (!hci_complete_sco(sc->sc_unit, m)) 1292 sc->sc_stats.err_tx++; 1293 1294 m = NULL; 1295 } 1296 } 1297 sc->sc_scowr_mbuf = m; 1298 1299 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1300 1301 if (len == 0) /* nothing to send */ 1302 return; 1303 1304 sc->sc_refcnt++; 1305 sc->sc_scowr_busy = 1; 1306 sc->sc_stats.byte_tx += len; 1307 isoc->busy = 1; 1308 1309 /* 1310 * calculate number of isoc frames and sizes 1311 */ 1312 1313 for (num = 0 ; len > 0 ; num++) { 1314 size = MIN(sc->sc_scowr_size, len); 1315 1316 isoc->size[num] = size; 1317 len -= size; 1318 } 1319 1320 usbd_setup_isoc_xfer(isoc->xfer, 1321 sc->sc_scowr_pipe, 1322 isoc, 1323 isoc->size, 1324 num, 1325 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1326 ubt_xmit_sco_complete); 1327 1328 usbd_transfer(isoc->xfer); 1329 } 1330 1331 static void 1332 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1333 usbd_private_handle h, usbd_status status) 1334 { 1335 struct ubt_isoc_xfer *isoc = h; 1336 struct ubt_softc *sc; 1337 int i; 1338 1339 KASSERT(xfer == isoc->xfer); 1340 sc = isoc->softc; 1341 1342 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1343 isoc, usbd_errstr(status), status); 1344 1345 isoc->busy = 0; 1346 1347 for (i = 0 ; ; i++) { 1348 if (i == UBT_NXFERS) { 1349 sc->sc_scowr_busy = 0; 1350 break; 1351 } 1352 1353 if (sc->sc_scowr[i].busy) 1354 break; 1355 } 1356 1357 if (--sc->sc_refcnt < 0) { 1358 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1359 return; 1360 } 1361 1362 if (sc->sc_dying) 1363 return; 1364 1365 if (status != USBD_NORMAL_COMPLETION) { 1366 DPRINTF("status=%s (%d)\n", 1367 usbd_errstr(status), status); 1368 1369 sc->sc_stats.err_tx++; 1370 1371 if (status == USBD_STALLED) 1372 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1373 else 1374 return; 1375 } 1376 1377 ubt_xmit_sco_start(sc); 1378 } 1379 1380 /* 1381 * load incoming data into an mbuf with 1382 * leading type byte 1383 */ 1384 static struct mbuf * 1385 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1386 { 1387 struct mbuf *m; 1388 1389 MGETHDR(m, M_DONTWAIT, MT_DATA); 1390 if (m == NULL) 1391 return NULL; 1392 1393 *mtod(m, uint8_t *) = type; 1394 m->m_pkthdr.len = m->m_len = MHLEN; 1395 m_copyback(m, 1, count, buf); // (extends if necessary) 1396 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1397 m_free(m); 1398 return NULL; 1399 } 1400 1401 m->m_pkthdr.len = count + 1; 1402 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1403 1404 return m; 1405 } 1406 1407 static void 1408 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1409 { 1410 struct ubt_softc *sc = h; 1411 struct mbuf *m; 1412 uint32_t count; 1413 void *buf; 1414 1415 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1416 sc, usbd_errstr(status), status); 1417 1418 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1419 return; 1420 1421 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1422 1423 if (count < sizeof(hci_event_hdr_t) - 1) { 1424 DPRINTF("dumped undersized event (count = %d)\n", count); 1425 sc->sc_stats.err_rx++; 1426 return; 1427 } 1428 1429 sc->sc_stats.evt_rx++; 1430 sc->sc_stats.byte_rx += count; 1431 1432 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1433 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1434 sc->sc_stats.err_rx++; 1435 } 1436 1437 static void 1438 ubt_recv_acl_start(struct ubt_softc *sc) 1439 { 1440 usbd_status status; 1441 1442 DPRINTFN(15, "sc=%p\n", sc); 1443 1444 if (sc->sc_aclrd_busy || sc->sc_dying) { 1445 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1446 sc->sc_aclrd_busy, 1447 sc->sc_dying); 1448 1449 return; 1450 } 1451 1452 sc->sc_refcnt++; 1453 sc->sc_aclrd_busy = 1; 1454 1455 usbd_setup_xfer(sc->sc_aclrd_xfer, 1456 sc->sc_aclrd_pipe, 1457 sc, 1458 sc->sc_aclrd_buf, 1459 UBT_BUFSIZ_ACL, 1460 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1461 USBD_NO_TIMEOUT, 1462 ubt_recv_acl_complete); 1463 1464 status = usbd_transfer(sc->sc_aclrd_xfer); 1465 1466 KASSERT(status != USBD_NORMAL_COMPLETION); 1467 1468 if (status != USBD_IN_PROGRESS) { 1469 DPRINTF("usbd_transfer status=%s (%d)\n", 1470 usbd_errstr(status), status); 1471 1472 sc->sc_refcnt--; 1473 sc->sc_aclrd_busy = 0; 1474 } 1475 } 1476 1477 static void 1478 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1479 usbd_private_handle h, usbd_status status) 1480 { 1481 struct ubt_softc *sc = h; 1482 struct mbuf *m; 1483 uint32_t count; 1484 void *buf; 1485 1486 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1487 sc, usbd_errstr(status), status); 1488 1489 sc->sc_aclrd_busy = 0; 1490 1491 if (--sc->sc_refcnt < 0) { 1492 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1493 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1494 return; 1495 } 1496 1497 if (sc->sc_dying) { 1498 DPRINTF("sc_dying\n"); 1499 return; 1500 } 1501 1502 if (status != USBD_NORMAL_COMPLETION) { 1503 DPRINTF("status=%s (%d)\n", 1504 usbd_errstr(status), status); 1505 1506 sc->sc_stats.err_rx++; 1507 1508 if (status == USBD_STALLED) 1509 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1510 else 1511 return; 1512 } else { 1513 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1514 1515 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1516 DPRINTF("dumped undersized packet (%d)\n", count); 1517 sc->sc_stats.err_rx++; 1518 } else { 1519 sc->sc_stats.acl_rx++; 1520 sc->sc_stats.byte_rx += count; 1521 1522 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1523 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1524 sc->sc_stats.err_rx++; 1525 } 1526 } 1527 1528 /* and restart */ 1529 ubt_recv_acl_start(sc); 1530 } 1531 1532 static void 1533 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1534 { 1535 int i; 1536 1537 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1538 1539 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1540 DPRINTF("%s%s%s\n", 1541 isoc->busy ? " busy" : "", 1542 sc->sc_dying ? " dying" : "", 1543 sc->sc_scord_size == 0 ? " size=0" : ""); 1544 1545 return; 1546 } 1547 1548 sc->sc_refcnt++; 1549 isoc->busy = 1; 1550 1551 for (i = 0 ; i < UBT_NFRAMES ; i++) 1552 isoc->size[i] = sc->sc_scord_size; 1553 1554 usbd_setup_isoc_xfer(isoc->xfer, 1555 sc->sc_scord_pipe, 1556 isoc, 1557 isoc->size, 1558 UBT_NFRAMES, 1559 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1560 ubt_recv_sco_complete); 1561 1562 usbd_transfer(isoc->xfer); 1563 } 1564 1565 static void 1566 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1567 usbd_private_handle h, usbd_status status) 1568 { 1569 struct ubt_isoc_xfer *isoc = h; 1570 struct ubt_softc *sc; 1571 struct mbuf *m; 1572 uint32_t count; 1573 uint8_t *ptr, *frame; 1574 int i, size, got, want; 1575 1576 KASSERT(isoc != NULL); 1577 KASSERT(isoc->xfer == xfer); 1578 1579 sc = isoc->softc; 1580 isoc->busy = 0; 1581 1582 if (--sc->sc_refcnt < 0) { 1583 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1584 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1585 return; 1586 } 1587 1588 if (sc->sc_dying) { 1589 DPRINTF("sc_dying\n"); 1590 return; 1591 } 1592 1593 if (status != USBD_NORMAL_COMPLETION) { 1594 DPRINTF("status=%s (%d)\n", 1595 usbd_errstr(status), status); 1596 1597 sc->sc_stats.err_rx++; 1598 1599 if (status == USBD_STALLED) { 1600 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1601 goto restart; 1602 } 1603 1604 return; 1605 } 1606 1607 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1608 if (count == 0) 1609 goto restart; 1610 1611 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1612 sc, isoc, count); 1613 1614 sc->sc_stats.byte_rx += count; 1615 1616 /* 1617 * Extract SCO packets from ISOC frames. The way we have it, 1618 * no SCO packet can be bigger than MHLEN. This is unlikely 1619 * to actually happen, but if we ran out of mbufs and lost 1620 * sync then we may get spurious data that makes it seem that 1621 * way, so we discard data that wont fit. This doesnt really 1622 * help with the lost sync situation alas. 1623 */ 1624 1625 m = sc->sc_scord_mbuf; 1626 if (m != NULL) { 1627 sc->sc_scord_mbuf = NULL; 1628 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1629 got = m->m_pkthdr.len; 1630 want = sizeof(hci_scodata_hdr_t); 1631 if (got >= want) 1632 want += mtod(m, hci_scodata_hdr_t *)->length ; 1633 } else { 1634 ptr = NULL; 1635 got = 0; 1636 want = 0; 1637 } 1638 1639 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1640 frame = isoc->buf + (i * sc->sc_scord_size); 1641 1642 while (isoc->size[i] > 0) { 1643 size = isoc->size[i]; 1644 1645 if (m == NULL) { 1646 MGETHDR(m, M_DONTWAIT, MT_DATA); 1647 if (m == NULL) { 1648 aprint_error_dev(sc->sc_dev, 1649 "out of memory (xfer halted)\n"); 1650 1651 sc->sc_stats.err_rx++; 1652 return; /* lost sync */ 1653 } 1654 1655 ptr = mtod(m, uint8_t *); 1656 *ptr++ = HCI_SCO_DATA_PKT; 1657 got = 1; 1658 want = sizeof(hci_scodata_hdr_t); 1659 } 1660 1661 if (got + size > want) 1662 size = want - got; 1663 1664 if (got + size > MHLEN) 1665 memcpy(ptr, frame, MHLEN - got); 1666 else 1667 memcpy(ptr, frame, size); 1668 1669 ptr += size; 1670 got += size; 1671 frame += size; 1672 1673 if (got == want) { 1674 /* 1675 * If we only got a header, add the packet 1676 * length to our want count. Send complete 1677 * packets up to protocol stack. 1678 */ 1679 if (want == sizeof(hci_scodata_hdr_t)) 1680 want += mtod(m, hci_scodata_hdr_t *)->length; 1681 1682 if (got == want) { 1683 m->m_pkthdr.len = m->m_len = got; 1684 sc->sc_stats.sco_rx++; 1685 if (!hci_input_sco(sc->sc_unit, m)) 1686 sc->sc_stats.err_rx++; 1687 1688 m = NULL; 1689 } 1690 } 1691 1692 isoc->size[i] -= size; 1693 } 1694 } 1695 1696 if (m != NULL) { 1697 m->m_pkthdr.len = m->m_len = got; 1698 sc->sc_scord_mbuf = m; 1699 } 1700 1701 restart: /* and restart */ 1702 ubt_recv_sco_start1(sc, isoc); 1703 } 1704 1705 void 1706 ubt_stats(device_ptr_t self, struct bt_stats *dest, int flush) 1707 { 1708 struct ubt_softc *sc = USBGETSOFTC(self); 1709 int s; 1710 1711 s = splusb(); 1712 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1713 1714 if (flush) 1715 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1716 1717 splx(s); 1718 } 1719
Indexes created Thu Oct 02 14:10:14 GMT 2025