ubt.c revision 1.32.2.2
1 /* $NetBSD: ubt.c,v 1.32.2.2 2008/07/28 14:37:27 simonb 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 1.32.2.2 2008/07/28 14:37:27 simonb 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 (!device_pmf_is_registered(self)) 523 if (!pmf_device_register(self, NULL, NULL)) 524 aprint_error_dev(self, 525 "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 pmf_device_deregister(self); 537 538 sc->sc_dying = 1; 539 540 if (!sc->sc_ok) 541 return 0; 542 543 /* delete sysctl nodes */ 544 sysctl_teardown(&sc->sc_log); 545 546 /* Detach HCI interface */ 547 if (sc->sc_unit) { 548 hci_detach(sc->sc_unit); 549 sc->sc_unit = NULL; 550 } 551 552 /* 553 * Abort all pipes. Causes processes waiting for transfer to wake. 554 * 555 * Actually, hci_detach() above will call ubt_disable() which may 556 * call ubt_abortdealloc(), but lets be sure since doing it twice 557 * wont cause an error. 558 */ 559 ubt_abortdealloc(sc); 560 561 /* wait for all processes to finish */ 562 s = splusb(); 563 if (sc->sc_refcnt-- > 0) 564 usb_detach_wait(USBDEV(sc->sc_dev)); 565 566 splx(s); 567 568 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 569 USBDEV(sc->sc_dev)); 570 571 DPRINTFN(1, "driver detached\n"); 572 573 return 0; 574 } 575 576 int 577 ubt_activate(device_ptr_t self, enum devact act) 578 { 579 struct ubt_softc *sc = USBGETSOFTC(self); 580 int error = 0; 581 582 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 583 584 switch (act) { 585 case DVACT_ACTIVATE: 586 break; 587 588 case DVACT_DEACTIVATE: 589 sc->sc_dying = 1; 590 break; 591 592 default: 593 error = EOPNOTSUPP; 594 break; 595 } 596 597 return error; 598 } 599 600 /* set ISOC configuration */ 601 static int 602 ubt_set_isoc_config(struct ubt_softc *sc) 603 { 604 usb_endpoint_descriptor_t *ed; 605 int rd_addr, wr_addr, rd_size, wr_size; 606 uint8_t count, i; 607 int err; 608 609 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 610 if (err != USBD_NORMAL_COMPLETION) { 611 aprint_error_dev(sc->sc_dev, 612 "Could not set config %d on ISOC interface. %s (%d)\n", 613 sc->sc_config, usbd_errstr(err), err); 614 615 return err == USBD_IN_USE ? EBUSY : EIO; 616 } 617 618 /* 619 * We wont get past the above if there are any pipes open, so no 620 * need to worry about buf/xfer/pipe deallocation. If we get an 621 * error after this, the frame quantities will be 0 and no SCO 622 * data will be possible. 623 */ 624 625 sc->sc_scord_size = rd_size = 0; 626 sc->sc_scord_addr = rd_addr = -1; 627 628 sc->sc_scowr_size = wr_size = 0; 629 sc->sc_scowr_addr = wr_addr = -1; 630 631 count = 0; 632 (void)usbd_endpoint_count(sc->sc_iface1, &count); 633 634 for (i = 0 ; i < count ; i++) { 635 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 636 if (ed == NULL) { 637 aprint_error_dev(sc->sc_dev, 638 "could not read endpoint descriptor %d\n", i); 639 640 return EIO; 641 } 642 643 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 644 USBDEVNAME(sc->sc_dev), 645 UE_GET_XFERTYPE(ed->bmAttributes), 646 UE_GET_ISO_TYPE(ed->bmAttributes), 647 ed->bEndpointAddress, 648 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 649 650 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 651 continue; 652 653 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 654 rd_addr = ed->bEndpointAddress; 655 rd_size = UGETW(ed->wMaxPacketSize); 656 } else { 657 wr_addr = ed->bEndpointAddress; 658 wr_size = UGETW(ed->wMaxPacketSize); 659 } 660 } 661 662 if (rd_addr == -1) { 663 aprint_error_dev(sc->sc_dev, 664 "missing ISOC IN endpoint on interface config %d\n", 665 sc->sc_config); 666 667 return ENOENT; 668 } 669 if (wr_addr == -1) { 670 aprint_error_dev(sc->sc_dev, 671 "missing ISOC OUT endpoint on interface config %d\n", 672 sc->sc_config); 673 674 return ENOENT; 675 } 676 677 #ifdef DIAGNOSTIC 678 if (rd_size > MLEN) { 679 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 680 rd_size); 681 682 return EOVERFLOW; 683 } 684 685 if (wr_size > MLEN) { 686 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 687 wr_size); 688 689 return EOVERFLOW; 690 } 691 #endif 692 693 sc->sc_scord_size = rd_size; 694 sc->sc_scord_addr = rd_addr; 695 696 sc->sc_scowr_size = wr_size; 697 sc->sc_scowr_addr = wr_addr; 698 699 return 0; 700 } 701 702 /* sysctl helper to set alternate configurations */ 703 static int 704 ubt_sysctl_config(SYSCTLFN_ARGS) 705 { 706 struct sysctlnode node; 707 struct ubt_softc *sc; 708 int t, error; 709 710 node = *rnode; 711 sc = node.sysctl_data; 712 713 t = sc->sc_config; 714 node.sysctl_data = &t; 715 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 716 if (error || newp == NULL) 717 return error; 718 719 if (t < 0 || t >= sc->sc_alt_config) 720 return EINVAL; 721 722 /* This may not change when the unit is enabled */ 723 if (sc->sc_enabled) 724 return EBUSY; 725 726 sc->sc_config = t; 727 return ubt_set_isoc_config(sc); 728 } 729 730 static void 731 ubt_abortdealloc(struct ubt_softc *sc) 732 { 733 int i; 734 735 DPRINTFN(1, "sc=%p\n", sc); 736 737 /* Abort all pipes */ 738 if (sc->sc_evt_pipe != NULL) { 739 usbd_abort_pipe(sc->sc_evt_pipe); 740 usbd_close_pipe(sc->sc_evt_pipe); 741 sc->sc_evt_pipe = NULL; 742 } 743 744 if (sc->sc_aclrd_pipe != NULL) { 745 usbd_abort_pipe(sc->sc_aclrd_pipe); 746 usbd_close_pipe(sc->sc_aclrd_pipe); 747 sc->sc_aclrd_pipe = NULL; 748 } 749 750 if (sc->sc_aclwr_pipe != NULL) { 751 usbd_abort_pipe(sc->sc_aclwr_pipe); 752 usbd_close_pipe(sc->sc_aclwr_pipe); 753 sc->sc_aclwr_pipe = NULL; 754 } 755 756 if (sc->sc_scord_pipe != NULL) { 757 usbd_abort_pipe(sc->sc_scord_pipe); 758 usbd_close_pipe(sc->sc_scord_pipe); 759 sc->sc_scord_pipe = NULL; 760 } 761 762 if (sc->sc_scowr_pipe != NULL) { 763 usbd_abort_pipe(sc->sc_scowr_pipe); 764 usbd_close_pipe(sc->sc_scowr_pipe); 765 sc->sc_scowr_pipe = NULL; 766 } 767 768 /* Free event buffer */ 769 if (sc->sc_evt_buf != NULL) { 770 free(sc->sc_evt_buf, M_USBDEV); 771 sc->sc_evt_buf = NULL; 772 } 773 774 /* Free all xfers and xfer buffers (implicit) */ 775 if (sc->sc_cmd_xfer != NULL) { 776 usbd_free_xfer(sc->sc_cmd_xfer); 777 sc->sc_cmd_xfer = NULL; 778 sc->sc_cmd_buf = NULL; 779 } 780 781 if (sc->sc_aclrd_xfer != NULL) { 782 usbd_free_xfer(sc->sc_aclrd_xfer); 783 sc->sc_aclrd_xfer = NULL; 784 sc->sc_aclrd_buf = NULL; 785 } 786 787 if (sc->sc_aclwr_xfer != NULL) { 788 usbd_free_xfer(sc->sc_aclwr_xfer); 789 sc->sc_aclwr_xfer = NULL; 790 sc->sc_aclwr_buf = NULL; 791 } 792 793 for (i = 0 ; i < UBT_NXFERS ; i++) { 794 if (sc->sc_scord[i].xfer != NULL) { 795 usbd_free_xfer(sc->sc_scord[i].xfer); 796 sc->sc_scord[i].xfer = NULL; 797 sc->sc_scord[i].buf = NULL; 798 } 799 800 if (sc->sc_scowr[i].xfer != NULL) { 801 usbd_free_xfer(sc->sc_scowr[i].xfer); 802 sc->sc_scowr[i].xfer = NULL; 803 sc->sc_scowr[i].buf = NULL; 804 } 805 } 806 807 /* Free partial SCO packets */ 808 if (sc->sc_scord_mbuf != NULL) { 809 m_freem(sc->sc_scord_mbuf); 810 sc->sc_scord_mbuf = NULL; 811 } 812 813 if (sc->sc_scowr_mbuf != NULL) { 814 m_freem(sc->sc_scowr_mbuf); 815 sc->sc_scowr_mbuf = NULL; 816 } 817 818 /* Empty mbuf queues */ 819 MBUFQ_DRAIN(&sc->sc_cmd_queue); 820 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 821 MBUFQ_DRAIN(&sc->sc_scowr_queue); 822 } 823 824 /******************************************************************************* 825 * 826 * Bluetooth Unit/USB callbacks 827 * 828 */ 829 static int 830 ubt_enable(device_ptr_t self) 831 { 832 struct ubt_softc *sc = USBGETSOFTC(self); 833 usbd_status err; 834 int s, i, error; 835 836 DPRINTFN(1, "sc=%p\n", sc); 837 838 if (sc->sc_enabled) 839 return 0; 840 841 s = splusb(); 842 843 /* Events */ 844 sc->sc_evt_buf = malloc(UBT_BUFSIZ_EVENT, M_USBDEV, M_NOWAIT); 845 if (sc->sc_evt_buf == NULL) { 846 error = ENOMEM; 847 goto bad; 848 } 849 err = usbd_open_pipe_intr(sc->sc_iface0, 850 sc->sc_evt_addr, 851 USBD_SHORT_XFER_OK, 852 &sc->sc_evt_pipe, 853 sc, 854 sc->sc_evt_buf, 855 UBT_BUFSIZ_EVENT, 856 ubt_recv_event, 857 USBD_DEFAULT_INTERVAL); 858 if (err != USBD_NORMAL_COMPLETION) { 859 error = EIO; 860 goto bad; 861 } 862 863 /* Commands */ 864 sc->sc_cmd_xfer = usbd_alloc_xfer(sc->sc_udev); 865 if (sc->sc_cmd_xfer == NULL) { 866 error = ENOMEM; 867 goto bad; 868 } 869 sc->sc_cmd_buf = usbd_alloc_buffer(sc->sc_cmd_xfer, UBT_BUFSIZ_CMD); 870 if (sc->sc_cmd_buf == NULL) { 871 error = ENOMEM; 872 goto bad; 873 } 874 sc->sc_cmd_busy = 0; 875 876 /* ACL read */ 877 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 878 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 879 if (err != USBD_NORMAL_COMPLETION) { 880 error = EIO; 881 goto bad; 882 } 883 sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev); 884 if (sc->sc_aclrd_xfer == NULL) { 885 error = ENOMEM; 886 goto bad; 887 } 888 sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer, UBT_BUFSIZ_ACL); 889 if (sc->sc_aclrd_buf == NULL) { 890 error = ENOMEM; 891 goto bad; 892 } 893 sc->sc_aclrd_busy = 0; 894 ubt_recv_acl_start(sc); 895 896 /* ACL write */ 897 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 898 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 899 if (err != USBD_NORMAL_COMPLETION) { 900 error = EIO; 901 goto bad; 902 } 903 sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev); 904 if (sc->sc_aclwr_xfer == NULL) { 905 error = ENOMEM; 906 goto bad; 907 } 908 sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer, UBT_BUFSIZ_ACL); 909 if (sc->sc_aclwr_buf == NULL) { 910 error = ENOMEM; 911 goto bad; 912 } 913 sc->sc_aclwr_busy = 0; 914 915 /* SCO read */ 916 if (sc->sc_scord_size > 0) { 917 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 918 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 919 if (err != USBD_NORMAL_COMPLETION) { 920 error = EIO; 921 goto bad; 922 } 923 924 for (i = 0 ; i < UBT_NXFERS ; i++) { 925 sc->sc_scord[i].xfer = usbd_alloc_xfer(sc->sc_udev); 926 if (sc->sc_scord[i].xfer == NULL) { 927 error = ENOMEM; 928 goto bad; 929 } 930 sc->sc_scord[i].buf = usbd_alloc_buffer(sc->sc_scord[i].xfer, 931 sc->sc_scord_size * UBT_NFRAMES); 932 if (sc->sc_scord[i].buf == NULL) { 933 error = ENOMEM; 934 goto bad; 935 } 936 sc->sc_scord[i].softc = sc; 937 sc->sc_scord[i].busy = 0; 938 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 939 } 940 } 941 942 /* SCO write */ 943 if (sc->sc_scowr_size > 0) { 944 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 945 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 946 if (err != USBD_NORMAL_COMPLETION) { 947 error = EIO; 948 goto bad; 949 } 950 951 for (i = 0 ; i < UBT_NXFERS ; i++) { 952 sc->sc_scowr[i].xfer = usbd_alloc_xfer(sc->sc_udev); 953 if (sc->sc_scowr[i].xfer == NULL) { 954 error = ENOMEM; 955 goto bad; 956 } 957 sc->sc_scowr[i].buf = usbd_alloc_buffer(sc->sc_scowr[i].xfer, 958 sc->sc_scowr_size * UBT_NFRAMES); 959 if (sc->sc_scowr[i].buf == NULL) { 960 error = ENOMEM; 961 goto bad; 962 } 963 sc->sc_scowr[i].softc = sc; 964 sc->sc_scowr[i].busy = 0; 965 } 966 967 sc->sc_scowr_busy = 0; 968 } 969 970 sc->sc_enabled = 1; 971 splx(s); 972 return 0; 973 974 bad: 975 ubt_abortdealloc(sc); 976 splx(s); 977 return error; 978 } 979 980 static void 981 ubt_disable(device_ptr_t self) 982 { 983 struct ubt_softc *sc = USBGETSOFTC(self); 984 int s; 985 986 DPRINTFN(1, "sc=%p\n", sc); 987 988 if (sc->sc_enabled == 0) 989 return; 990 991 s = splusb(); 992 ubt_abortdealloc(sc); 993 994 sc->sc_enabled = 0; 995 splx(s); 996 } 997 998 static void 999 ubt_xmit_cmd(device_ptr_t self, struct mbuf *m) 1000 { 1001 struct ubt_softc *sc = USBGETSOFTC(self); 1002 int s; 1003 1004 KASSERT(sc->sc_enabled); 1005 1006 s = splusb(); 1007 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1008 1009 if (sc->sc_cmd_busy == 0) 1010 ubt_xmit_cmd_start(sc); 1011 1012 splx(s); 1013 } 1014 1015 static void 1016 ubt_xmit_cmd_start(struct ubt_softc *sc) 1017 { 1018 usb_device_request_t req; 1019 usbd_status status; 1020 struct mbuf *m; 1021 int len; 1022 1023 if (sc->sc_dying) 1024 return; 1025 1026 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1027 return; 1028 1029 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1030 KASSERT(m != NULL); 1031 1032 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1033 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1034 1035 sc->sc_refcnt++; 1036 sc->sc_cmd_busy = 1; 1037 1038 len = m->m_pkthdr.len - 1; 1039 m_copydata(m, 1, len, sc->sc_cmd_buf); 1040 m_freem(m); 1041 1042 memset(&req, 0, sizeof(req)); 1043 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1044 USETW(req.wLength, len); 1045 1046 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1047 sc->sc_udev, 1048 sc, 1049 UBT_CMD_TIMEOUT, 1050 &req, 1051 sc->sc_cmd_buf, 1052 len, 1053 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1054 ubt_xmit_cmd_complete); 1055 1056 status = usbd_transfer(sc->sc_cmd_xfer); 1057 1058 KASSERT(status != USBD_NORMAL_COMPLETION); 1059 1060 if (status != USBD_IN_PROGRESS) { 1061 DPRINTF("usbd_transfer status=%s (%d)\n", 1062 usbd_errstr(status), status); 1063 1064 sc->sc_refcnt--; 1065 sc->sc_cmd_busy = 0; 1066 } 1067 } 1068 1069 static void 1070 ubt_xmit_cmd_complete(usbd_xfer_handle xfer, 1071 usbd_private_handle h, usbd_status status) 1072 { 1073 struct ubt_softc *sc = h; 1074 uint32_t count; 1075 1076 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1077 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1078 1079 sc->sc_cmd_busy = 0; 1080 1081 if (--sc->sc_refcnt < 0) { 1082 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1083 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1084 return; 1085 } 1086 1087 if (sc->sc_dying) { 1088 DPRINTF("sc_dying\n"); 1089 return; 1090 } 1091 1092 if (status != USBD_NORMAL_COMPLETION) { 1093 DPRINTF("status=%s (%d)\n", 1094 usbd_errstr(status), status); 1095 1096 sc->sc_stats.err_tx++; 1097 return; 1098 } 1099 1100 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1101 sc->sc_stats.cmd_tx++; 1102 sc->sc_stats.byte_tx += count; 1103 1104 ubt_xmit_cmd_start(sc); 1105 } 1106 1107 static void 1108 ubt_xmit_acl(device_ptr_t self, struct mbuf *m) 1109 { 1110 struct ubt_softc *sc = USBGETSOFTC(self); 1111 int s; 1112 1113 KASSERT(sc->sc_enabled); 1114 1115 s = splusb(); 1116 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1117 1118 if (sc->sc_aclwr_busy == 0) 1119 ubt_xmit_acl_start(sc); 1120 1121 splx(s); 1122 } 1123 1124 static void 1125 ubt_xmit_acl_start(struct ubt_softc *sc) 1126 { 1127 struct mbuf *m; 1128 usbd_status status; 1129 int len; 1130 1131 if (sc->sc_dying) 1132 return; 1133 1134 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1135 return; 1136 1137 sc->sc_refcnt++; 1138 sc->sc_aclwr_busy = 1; 1139 1140 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1141 KASSERT(m != NULL); 1142 1143 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1144 USBDEVNAME(sc->sc_dev), m->m_pkthdr.len); 1145 1146 len = m->m_pkthdr.len - 1; 1147 if (len > UBT_BUFSIZ_ACL) { 1148 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1149 USBDEVNAME(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1150 1151 len = UBT_BUFSIZ_ACL; 1152 } 1153 1154 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1155 m_freem(m); 1156 1157 sc->sc_stats.acl_tx++; 1158 sc->sc_stats.byte_tx += len; 1159 1160 usbd_setup_xfer(sc->sc_aclwr_xfer, 1161 sc->sc_aclwr_pipe, 1162 sc, 1163 sc->sc_aclwr_buf, 1164 len, 1165 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1166 UBT_ACL_TIMEOUT, 1167 ubt_xmit_acl_complete); 1168 1169 status = usbd_transfer(sc->sc_aclwr_xfer); 1170 1171 KASSERT(status != USBD_NORMAL_COMPLETION); 1172 1173 if (status != USBD_IN_PROGRESS) { 1174 DPRINTF("usbd_transfer status=%s (%d)\n", 1175 usbd_errstr(status), status); 1176 1177 sc->sc_refcnt--; 1178 sc->sc_aclwr_busy = 0; 1179 } 1180 } 1181 1182 static void 1183 ubt_xmit_acl_complete(usbd_xfer_handle xfer, 1184 usbd_private_handle h, usbd_status status) 1185 { 1186 struct ubt_softc *sc = h; 1187 1188 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1189 USBDEVNAME(sc->sc_dev), usbd_errstr(status), status); 1190 1191 sc->sc_aclwr_busy = 0; 1192 1193 if (--sc->sc_refcnt < 0) { 1194 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1195 return; 1196 } 1197 1198 if (sc->sc_dying) 1199 return; 1200 1201 if (status != USBD_NORMAL_COMPLETION) { 1202 DPRINTF("status=%s (%d)\n", 1203 usbd_errstr(status), status); 1204 1205 sc->sc_stats.err_tx++; 1206 1207 if (status == USBD_STALLED) 1208 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1209 else 1210 return; 1211 } 1212 1213 ubt_xmit_acl_start(sc); 1214 } 1215 1216 static void 1217 ubt_xmit_sco(device_ptr_t self, struct mbuf *m) 1218 { 1219 struct ubt_softc *sc = USBGETSOFTC(self); 1220 int s; 1221 1222 KASSERT(sc->sc_enabled); 1223 1224 s = splusb(); 1225 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1226 1227 if (sc->sc_scowr_busy == 0) 1228 ubt_xmit_sco_start(sc); 1229 1230 splx(s); 1231 } 1232 1233 static void 1234 ubt_xmit_sco_start(struct ubt_softc *sc) 1235 { 1236 int i; 1237 1238 if (sc->sc_dying || sc->sc_scowr_size == 0) 1239 return; 1240 1241 for (i = 0 ; i < UBT_NXFERS ; i++) { 1242 if (sc->sc_scowr[i].busy) 1243 continue; 1244 1245 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1246 } 1247 } 1248 1249 static void 1250 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1251 { 1252 struct mbuf *m; 1253 uint8_t *buf; 1254 int num, len, size, space; 1255 1256 space = sc->sc_scowr_size * UBT_NFRAMES; 1257 buf = isoc->buf; 1258 len = 0; 1259 1260 /* 1261 * Fill the request buffer with data from the queue, 1262 * keeping any leftover packet on our private hook. 1263 * 1264 * Complete packets are passed back up to the stack 1265 * for disposal, since we can't rely on the controller 1266 * to tell us when it has finished with them. 1267 */ 1268 1269 m = sc->sc_scowr_mbuf; 1270 while (space > 0) { 1271 if (m == NULL) { 1272 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1273 if (m == NULL) 1274 break; 1275 1276 m_adj(m, 1); /* packet type */ 1277 } 1278 1279 if (m->m_pkthdr.len > 0) { 1280 size = MIN(m->m_pkthdr.len, space); 1281 1282 m_copydata(m, 0, size, buf); 1283 m_adj(m, size); 1284 1285 buf += size; 1286 len += size; 1287 space -= size; 1288 } 1289 1290 if (m->m_pkthdr.len == 0) { 1291 sc->sc_stats.sco_tx++; 1292 if (!hci_complete_sco(sc->sc_unit, m)) 1293 sc->sc_stats.err_tx++; 1294 1295 m = NULL; 1296 } 1297 } 1298 sc->sc_scowr_mbuf = m; 1299 1300 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1301 1302 if (len == 0) /* nothing to send */ 1303 return; 1304 1305 sc->sc_refcnt++; 1306 sc->sc_scowr_busy = 1; 1307 sc->sc_stats.byte_tx += len; 1308 isoc->busy = 1; 1309 1310 /* 1311 * calculate number of isoc frames and sizes 1312 */ 1313 1314 for (num = 0 ; len > 0 ; num++) { 1315 size = MIN(sc->sc_scowr_size, len); 1316 1317 isoc->size[num] = size; 1318 len -= size; 1319 } 1320 1321 usbd_setup_isoc_xfer(isoc->xfer, 1322 sc->sc_scowr_pipe, 1323 isoc, 1324 isoc->size, 1325 num, 1326 USBD_NO_COPY | USBD_FORCE_SHORT_XFER, 1327 ubt_xmit_sco_complete); 1328 1329 usbd_transfer(isoc->xfer); 1330 } 1331 1332 static void 1333 ubt_xmit_sco_complete(usbd_xfer_handle xfer, 1334 usbd_private_handle h, usbd_status status) 1335 { 1336 struct ubt_isoc_xfer *isoc = h; 1337 struct ubt_softc *sc; 1338 int i; 1339 1340 KASSERT(xfer == isoc->xfer); 1341 sc = isoc->softc; 1342 1343 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1344 isoc, usbd_errstr(status), status); 1345 1346 isoc->busy = 0; 1347 1348 for (i = 0 ; ; i++) { 1349 if (i == UBT_NXFERS) { 1350 sc->sc_scowr_busy = 0; 1351 break; 1352 } 1353 1354 if (sc->sc_scowr[i].busy) 1355 break; 1356 } 1357 1358 if (--sc->sc_refcnt < 0) { 1359 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1360 return; 1361 } 1362 1363 if (sc->sc_dying) 1364 return; 1365 1366 if (status != USBD_NORMAL_COMPLETION) { 1367 DPRINTF("status=%s (%d)\n", 1368 usbd_errstr(status), status); 1369 1370 sc->sc_stats.err_tx++; 1371 1372 if (status == USBD_STALLED) 1373 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1374 else 1375 return; 1376 } 1377 1378 ubt_xmit_sco_start(sc); 1379 } 1380 1381 /* 1382 * load incoming data into an mbuf with 1383 * leading type byte 1384 */ 1385 static struct mbuf * 1386 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1387 { 1388 struct mbuf *m; 1389 1390 MGETHDR(m, M_DONTWAIT, MT_DATA); 1391 if (m == NULL) 1392 return NULL; 1393 1394 *mtod(m, uint8_t *) = type; 1395 m->m_pkthdr.len = m->m_len = MHLEN; 1396 m_copyback(m, 1, count, buf); // (extends if necessary) 1397 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1398 m_free(m); 1399 return NULL; 1400 } 1401 1402 m->m_pkthdr.len = count + 1; 1403 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1404 1405 return m; 1406 } 1407 1408 static void 1409 ubt_recv_event(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status) 1410 { 1411 struct ubt_softc *sc = h; 1412 struct mbuf *m; 1413 uint32_t count; 1414 void *buf; 1415 1416 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1417 sc, usbd_errstr(status), status); 1418 1419 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1420 return; 1421 1422 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1423 1424 if (count < sizeof(hci_event_hdr_t) - 1) { 1425 DPRINTF("dumped undersized event (count = %d)\n", count); 1426 sc->sc_stats.err_rx++; 1427 return; 1428 } 1429 1430 sc->sc_stats.evt_rx++; 1431 sc->sc_stats.byte_rx += count; 1432 1433 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1434 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1435 sc->sc_stats.err_rx++; 1436 } 1437 1438 static void 1439 ubt_recv_acl_start(struct ubt_softc *sc) 1440 { 1441 usbd_status status; 1442 1443 DPRINTFN(15, "sc=%p\n", sc); 1444 1445 if (sc->sc_aclrd_busy || sc->sc_dying) { 1446 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1447 sc->sc_aclrd_busy, 1448 sc->sc_dying); 1449 1450 return; 1451 } 1452 1453 sc->sc_refcnt++; 1454 sc->sc_aclrd_busy = 1; 1455 1456 usbd_setup_xfer(sc->sc_aclrd_xfer, 1457 sc->sc_aclrd_pipe, 1458 sc, 1459 sc->sc_aclrd_buf, 1460 UBT_BUFSIZ_ACL, 1461 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1462 USBD_NO_TIMEOUT, 1463 ubt_recv_acl_complete); 1464 1465 status = usbd_transfer(sc->sc_aclrd_xfer); 1466 1467 KASSERT(status != USBD_NORMAL_COMPLETION); 1468 1469 if (status != USBD_IN_PROGRESS) { 1470 DPRINTF("usbd_transfer status=%s (%d)\n", 1471 usbd_errstr(status), status); 1472 1473 sc->sc_refcnt--; 1474 sc->sc_aclrd_busy = 0; 1475 } 1476 } 1477 1478 static void 1479 ubt_recv_acl_complete(usbd_xfer_handle xfer, 1480 usbd_private_handle h, usbd_status status) 1481 { 1482 struct ubt_softc *sc = h; 1483 struct mbuf *m; 1484 uint32_t count; 1485 void *buf; 1486 1487 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1488 sc, usbd_errstr(status), status); 1489 1490 sc->sc_aclrd_busy = 0; 1491 1492 if (--sc->sc_refcnt < 0) { 1493 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1494 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1495 return; 1496 } 1497 1498 if (sc->sc_dying) { 1499 DPRINTF("sc_dying\n"); 1500 return; 1501 } 1502 1503 if (status != USBD_NORMAL_COMPLETION) { 1504 DPRINTF("status=%s (%d)\n", 1505 usbd_errstr(status), status); 1506 1507 sc->sc_stats.err_rx++; 1508 1509 if (status == USBD_STALLED) 1510 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1511 else 1512 return; 1513 } else { 1514 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1515 1516 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1517 DPRINTF("dumped undersized packet (%d)\n", count); 1518 sc->sc_stats.err_rx++; 1519 } else { 1520 sc->sc_stats.acl_rx++; 1521 sc->sc_stats.byte_rx += count; 1522 1523 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1524 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1525 sc->sc_stats.err_rx++; 1526 } 1527 } 1528 1529 /* and restart */ 1530 ubt_recv_acl_start(sc); 1531 } 1532 1533 static void 1534 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1535 { 1536 int i; 1537 1538 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1539 1540 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1541 DPRINTF("%s%s%s\n", 1542 isoc->busy ? " busy" : "", 1543 sc->sc_dying ? " dying" : "", 1544 sc->sc_scord_size == 0 ? " size=0" : ""); 1545 1546 return; 1547 } 1548 1549 sc->sc_refcnt++; 1550 isoc->busy = 1; 1551 1552 for (i = 0 ; i < UBT_NFRAMES ; i++) 1553 isoc->size[i] = sc->sc_scord_size; 1554 1555 usbd_setup_isoc_xfer(isoc->xfer, 1556 sc->sc_scord_pipe, 1557 isoc, 1558 isoc->size, 1559 UBT_NFRAMES, 1560 USBD_NO_COPY | USBD_SHORT_XFER_OK, 1561 ubt_recv_sco_complete); 1562 1563 usbd_transfer(isoc->xfer); 1564 } 1565 1566 static void 1567 ubt_recv_sco_complete(usbd_xfer_handle xfer, 1568 usbd_private_handle h, usbd_status status) 1569 { 1570 struct ubt_isoc_xfer *isoc = h; 1571 struct ubt_softc *sc; 1572 struct mbuf *m; 1573 uint32_t count; 1574 uint8_t *ptr, *frame; 1575 int i, size, got, want; 1576 1577 KASSERT(isoc != NULL); 1578 KASSERT(isoc->xfer == xfer); 1579 1580 sc = isoc->softc; 1581 isoc->busy = 0; 1582 1583 if (--sc->sc_refcnt < 0) { 1584 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1585 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1586 return; 1587 } 1588 1589 if (sc->sc_dying) { 1590 DPRINTF("sc_dying\n"); 1591 return; 1592 } 1593 1594 if (status != USBD_NORMAL_COMPLETION) { 1595 DPRINTF("status=%s (%d)\n", 1596 usbd_errstr(status), status); 1597 1598 sc->sc_stats.err_rx++; 1599 1600 if (status == USBD_STALLED) { 1601 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1602 goto restart; 1603 } 1604 1605 return; 1606 } 1607 1608 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1609 if (count == 0) 1610 goto restart; 1611 1612 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1613 sc, isoc, count); 1614 1615 sc->sc_stats.byte_rx += count; 1616 1617 /* 1618 * Extract SCO packets from ISOC frames. The way we have it, 1619 * no SCO packet can be bigger than MHLEN. This is unlikely 1620 * to actually happen, but if we ran out of mbufs and lost 1621 * sync then we may get spurious data that makes it seem that 1622 * way, so we discard data that wont fit. This doesnt really 1623 * help with the lost sync situation alas. 1624 */ 1625 1626 m = sc->sc_scord_mbuf; 1627 if (m != NULL) { 1628 sc->sc_scord_mbuf = NULL; 1629 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1630 got = m->m_pkthdr.len; 1631 want = sizeof(hci_scodata_hdr_t); 1632 if (got >= want) 1633 want += mtod(m, hci_scodata_hdr_t *)->length ; 1634 } else { 1635 ptr = NULL; 1636 got = 0; 1637 want = 0; 1638 } 1639 1640 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1641 frame = isoc->buf + (i * sc->sc_scord_size); 1642 1643 while (isoc->size[i] > 0) { 1644 size = isoc->size[i]; 1645 1646 if (m == NULL) { 1647 MGETHDR(m, M_DONTWAIT, MT_DATA); 1648 if (m == NULL) { 1649 aprint_error_dev(sc->sc_dev, 1650 "out of memory (xfer halted)\n"); 1651 1652 sc->sc_stats.err_rx++; 1653 return; /* lost sync */ 1654 } 1655 1656 ptr = mtod(m, uint8_t *); 1657 *ptr++ = HCI_SCO_DATA_PKT; 1658 got = 1; 1659 want = sizeof(hci_scodata_hdr_t); 1660 } 1661 1662 if (got + size > want) 1663 size = want - got; 1664 1665 if (got + size > MHLEN) 1666 memcpy(ptr, frame, MHLEN - got); 1667 else 1668 memcpy(ptr, frame, size); 1669 1670 ptr += size; 1671 got += size; 1672 frame += size; 1673 1674 if (got == want) { 1675 /* 1676 * If we only got a header, add the packet 1677 * length to our want count. Send complete 1678 * packets up to protocol stack. 1679 */ 1680 if (want == sizeof(hci_scodata_hdr_t)) 1681 want += mtod(m, hci_scodata_hdr_t *)->length; 1682 1683 if (got == want) { 1684 m->m_pkthdr.len = m->m_len = got; 1685 sc->sc_stats.sco_rx++; 1686 if (!hci_input_sco(sc->sc_unit, m)) 1687 sc->sc_stats.err_rx++; 1688 1689 m = NULL; 1690 } 1691 } 1692 1693 isoc->size[i] -= size; 1694 } 1695 } 1696 1697 if (m != NULL) { 1698 m->m_pkthdr.len = m->m_len = got; 1699 sc->sc_scord_mbuf = m; 1700 } 1701 1702 restart: /* and restart */ 1703 ubt_recv_sco_start1(sc, isoc); 1704 } 1705 1706 void 1707 ubt_stats(device_ptr_t self, struct bt_stats *dest, int flush) 1708 { 1709 struct ubt_softc *sc = USBGETSOFTC(self); 1710 int s; 1711 1712 s = splusb(); 1713 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1714 1715 if (flush) 1716 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1717 1718 splx(s); 1719 } 1720
Indexes created Thu Oct 02 14:10:14 GMT 2025