ubt.c revision 1.54
1 /* $NetBSD: ubt.c,v 1.54 2016/04/23 10:15:32 skrll 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 1.54 2016/04/23 10:15:32 skrll 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/kmem.h> 77 #include <sys/mbuf.h> 78 #include <sys/proc.h> 79 #include <sys/sysctl.h> 80 #include <sys/systm.h> 81 82 #include <dev/usb/usb.h> 83 #include <dev/usb/usbdi.h> 84 #include <dev/usb/usbdi_util.h> 85 #include <dev/usb/usbdevs.h> 86 87 #include <netbt/bluetooth.h> 88 #include <netbt/hci.h> 89 90 /******************************************************************************* 91 * 92 * debugging stuff 93 */ 94 #undef DPRINTF 95 #undef DPRINTFN 96 97 #ifdef UBT_DEBUG 98 int ubt_debug = 0; 99 100 #define DPRINTF(...) do { \ 101 if (ubt_debug) { \ 102 printf("%s: ", __func__); \ 103 printf(__VA_ARGS__); \ 104 } \ 105 } while (/* CONSTCOND */0) 106 107 #define DPRINTFN(n, ...) do { \ 108 if (ubt_debug > (n)) { \ 109 printf("%s: ", __func__); \ 110 printf(__VA_ARGS__); \ 111 } \ 112 } while (/* CONSTCOND */0) 113 114 SYSCTL_SETUP(sysctl_hw_ubt_debug_setup, "sysctl hw.ubt_debug setup") 115 { 116 117 sysctl_createv(NULL, 0, NULL, NULL, 118 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 119 CTLTYPE_INT, "ubt_debug", 120 SYSCTL_DESCR("ubt debug level"), 121 NULL, 0, 122 &ubt_debug, sizeof(ubt_debug), 123 CTL_HW, CTL_CREATE, CTL_EOL); 124 } 125 #else 126 #define DPRINTF(...) 127 #define DPRINTFN(...) 128 #endif 129 130 /******************************************************************************* 131 * 132 * ubt softc structure 133 * 134 */ 135 136 /* buffer sizes */ 137 /* 138 * NB: although ACL packets can extend to 65535 bytes, most devices 139 * have max_acl_size at much less (largest I have seen is 384) 140 */ 141 #define UBT_BUFSIZ_CMD (HCI_CMD_PKT_SIZE - 1) 142 #define UBT_BUFSIZ_ACL (2048 - 1) 143 #define UBT_BUFSIZ_EVENT (HCI_EVENT_PKT_SIZE - 1) 144 145 /* Transmit timeouts */ 146 #define UBT_CMD_TIMEOUT USBD_DEFAULT_TIMEOUT 147 #define UBT_ACL_TIMEOUT USBD_DEFAULT_TIMEOUT 148 149 /* 150 * ISOC transfers 151 * 152 * xfer buffer size depends on the frame size, and the number 153 * of frames per transfer is fixed, as each frame should be 154 * 1ms worth of data. This keeps the rate that xfers complete 155 * fairly constant. We use multiple xfers to keep the hardware 156 * busy 157 */ 158 #define UBT_NXFERS 3 /* max xfers to queue */ 159 #define UBT_NFRAMES 10 /* frames per xfer */ 160 161 struct ubt_isoc_xfer { 162 struct ubt_softc *softc; 163 struct usbd_xfer *xfer; 164 uint8_t *buf; 165 uint16_t size[UBT_NFRAMES]; 166 int busy; 167 }; 168 169 struct ubt_softc { 170 device_t sc_dev; 171 struct usbd_device *sc_udev; 172 int sc_refcnt; 173 int sc_dying; 174 int sc_enabled; 175 176 /* Control Interface */ 177 struct usbd_interface * sc_iface0; 178 179 /* Commands (control) */ 180 struct usbd_xfer *sc_cmd_xfer; 181 uint8_t *sc_cmd_buf; 182 int sc_cmd_busy; /* write active */ 183 MBUFQ_HEAD() sc_cmd_queue; /* output queue */ 184 185 /* Events (interrupt) */ 186 int sc_evt_addr; /* endpoint address */ 187 struct usbd_pipe *sc_evt_pipe; 188 uint8_t *sc_evt_buf; 189 190 /* ACL data (in) */ 191 int sc_aclrd_addr; /* endpoint address */ 192 struct usbd_pipe *sc_aclrd_pipe; /* read pipe */ 193 struct usbd_xfer *sc_aclrd_xfer; /* read xfer */ 194 uint8_t *sc_aclrd_buf; /* read buffer */ 195 int sc_aclrd_busy; /* reading */ 196 197 /* ACL data (out) */ 198 int sc_aclwr_addr; /* endpoint address */ 199 struct usbd_pipe *sc_aclwr_pipe; /* write pipe */ 200 struct usbd_xfer *sc_aclwr_xfer; /* write xfer */ 201 uint8_t *sc_aclwr_buf; /* write buffer */ 202 int sc_aclwr_busy; /* write active */ 203 MBUFQ_HEAD() sc_aclwr_queue;/* output queue */ 204 205 /* ISOC interface */ 206 struct usbd_interface *sc_iface1; /* ISOC interface */ 207 struct sysctllog *sc_log; /* sysctl log */ 208 int sc_config; /* current config no */ 209 int sc_alt_config; /* no of alternates */ 210 211 /* SCO data (in) */ 212 int sc_scord_addr; /* endpoint address */ 213 struct usbd_pipe *sc_scord_pipe; /* read pipe */ 214 int sc_scord_size; /* frame length */ 215 struct ubt_isoc_xfer sc_scord[UBT_NXFERS]; 216 struct mbuf *sc_scord_mbuf; /* current packet */ 217 218 /* SCO data (out) */ 219 int sc_scowr_addr; /* endpoint address */ 220 struct usbd_pipe *sc_scowr_pipe; /* write pipe */ 221 int sc_scowr_size; /* frame length */ 222 struct ubt_isoc_xfer sc_scowr[UBT_NXFERS]; 223 struct mbuf *sc_scowr_mbuf; /* current packet */ 224 int sc_scowr_busy; /* write active */ 225 MBUFQ_HEAD() sc_scowr_queue;/* output queue */ 226 227 /* Protocol structure */ 228 struct hci_unit *sc_unit; 229 struct bt_stats sc_stats; 230 231 /* Successfully attached */ 232 int sc_ok; 233 }; 234 235 /******************************************************************************* 236 * 237 * Bluetooth unit/USB callback routines 238 * 239 */ 240 static int ubt_enable(device_t); 241 static void ubt_disable(device_t); 242 243 static void ubt_xmit_cmd(device_t, struct mbuf *); 244 static void ubt_xmit_cmd_start(struct ubt_softc *); 245 static void ubt_xmit_cmd_complete(struct usbd_xfer *, 246 void *, usbd_status); 247 248 static void ubt_xmit_acl(device_t, struct mbuf *); 249 static void ubt_xmit_acl_start(struct ubt_softc *); 250 static void ubt_xmit_acl_complete(struct usbd_xfer *, 251 void *, usbd_status); 252 253 static void ubt_xmit_sco(device_t, struct mbuf *); 254 static void ubt_xmit_sco_start(struct ubt_softc *); 255 static void ubt_xmit_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 256 static void ubt_xmit_sco_complete(struct usbd_xfer *, 257 void *, usbd_status); 258 259 static void ubt_recv_event(struct usbd_xfer *, 260 void *, usbd_status); 261 262 static void ubt_recv_acl_start(struct ubt_softc *); 263 static void ubt_recv_acl_complete(struct usbd_xfer *, 264 void *, usbd_status); 265 266 static void ubt_recv_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 267 static void ubt_recv_sco_complete(struct usbd_xfer *, 268 void *, usbd_status); 269 270 static void ubt_stats(device_t, struct bt_stats *, int); 271 272 static const struct hci_if ubt_hci = { 273 .enable = ubt_enable, 274 .disable = ubt_disable, 275 .output_cmd = ubt_xmit_cmd, 276 .output_acl = ubt_xmit_acl, 277 .output_sco = ubt_xmit_sco, 278 .get_stats = ubt_stats, 279 .ipl = IPL_SOFTUSB, 280 }; 281 282 /******************************************************************************* 283 * 284 * USB Autoconfig stuff 285 * 286 */ 287 288 int ubt_match(device_t, cfdata_t, void *); 289 void ubt_attach(device_t, device_t, void *); 290 int ubt_detach(device_t, int); 291 int ubt_activate(device_t, enum devact); 292 extern struct cfdriver ubt_cd; 293 CFATTACH_DECL_NEW(ubt, sizeof(struct ubt_softc), ubt_match, ubt_attach, ubt_detach, ubt_activate); 294 295 static int ubt_set_isoc_config(struct ubt_softc *); 296 static int ubt_sysctl_config(SYSCTLFN_PROTO); 297 static void ubt_abortdealloc(struct ubt_softc *); 298 299 /* 300 * To match or ignore, add details to the ubt_dev list. 301 * Use value of -1 to indicate a wildcard 302 * To override another entry, add details earlier 303 */ 304 const struct ubt_devno { 305 int vendor; 306 int product; 307 int class; 308 int subclass; 309 int proto; 310 int match; 311 } ubt_dev[] = { 312 { /* ignore Broadcom 2033 without firmware */ 313 USB_VENDOR_BROADCOM, 314 USB_PRODUCT_BROADCOM_BCM2033NF, 315 -1, 316 -1, 317 -1, 318 UMATCH_NONE 319 }, 320 { /* Apple Bluetooth Host Controller MacbookPro 7,1 */ 321 USB_VENDOR_APPLE, 322 USB_PRODUCT_APPLE_BLUETOOTH_HOST_1, 323 -1, 324 -1, 325 -1, 326 UMATCH_VENDOR_PRODUCT 327 }, 328 { /* Apple Bluetooth Host Controller iMac 11,1 */ 329 USB_VENDOR_APPLE, 330 USB_PRODUCT_APPLE_BLUETOOTH_HOST_2, 331 -1, 332 -1, 333 -1, 334 UMATCH_VENDOR_PRODUCT 335 }, 336 { /* Apple Bluetooth Host Controller MacBookPro 8,2 */ 337 USB_VENDOR_APPLE, 338 USB_PRODUCT_APPLE_BLUETOOTH_HOST_3, 339 -1, 340 -1, 341 -1, 342 UMATCH_VENDOR_PRODUCT 343 }, 344 { /* Apple Bluetooth Host Controller MacBookAir 3,1 3,2*/ 345 USB_VENDOR_APPLE, 346 USB_PRODUCT_APPLE_BLUETOOTH_HOST_4, 347 -1, 348 -1, 349 -1, 350 UMATCH_VENDOR_PRODUCT 351 }, 352 { /* Apple Bluetooth Host Controller MacBookAir 4,1 */ 353 USB_VENDOR_APPLE, 354 USB_PRODUCT_APPLE_BLUETOOTH_HOST_5, 355 -1, 356 -1, 357 -1, 358 UMATCH_VENDOR_PRODUCT 359 }, 360 { /* Apple Bluetooth Host Controller MacMini 5,1 */ 361 USB_VENDOR_APPLE, 362 USB_PRODUCT_APPLE_BLUETOOTH_HOST_6, 363 -1, 364 -1, 365 -1, 366 UMATCH_VENDOR_PRODUCT 367 }, 368 { /* Apple Bluetooth Host Controller MacBookAir 6,1 */ 369 USB_VENDOR_APPLE, 370 USB_PRODUCT_APPLE_BLUETOOTH_HOST_7, 371 -1, 372 -1, 373 -1, 374 UMATCH_VENDOR_PRODUCT 375 }, 376 { /* Broadcom chips with PatchRAM support */ 377 USB_VENDOR_BROADCOM, 378 -1, 379 UDCLASS_VENDOR, 380 UDSUBCLASS_RF, 381 UDPROTO_BLUETOOTH, 382 UMATCH_VENDOR_DEVCLASS_DEVPROTO 383 }, 384 { /* Broadcom based device with PatchRAM support */ 385 USB_VENDOR_FOXCONN, 386 -1, 387 UDCLASS_VENDOR, 388 UDSUBCLASS_RF, 389 UDPROTO_BLUETOOTH, 390 UMATCH_VENDOR_DEVCLASS_DEVPROTO 391 }, 392 { /* Broadcom based device with PatchRAM support */ 393 USB_VENDOR_LITEON, 394 -1, 395 UDCLASS_VENDOR, 396 UDSUBCLASS_RF, 397 UDPROTO_BLUETOOTH, 398 UMATCH_VENDOR_DEVCLASS_DEVPROTO 399 }, 400 { /* Broadcom based device with PatchRAM support */ 401 USB_VENDOR_BELKIN, 402 -1, 403 UDCLASS_VENDOR, 404 UDSUBCLASS_RF, 405 UDPROTO_BLUETOOTH, 406 UMATCH_VENDOR_DEVCLASS_DEVPROTO 407 }, 408 { /* Broadcom based device with PatchRAM support */ 409 USB_VENDOR_TOSHIBA, 410 -1, 411 UDCLASS_VENDOR, 412 UDSUBCLASS_RF, 413 UDPROTO_BLUETOOTH, 414 UMATCH_VENDOR_DEVCLASS_DEVPROTO 415 }, 416 { /* Broadcom based device with PatchRAM support */ 417 USB_VENDOR_ASUSTEK, 418 -1, 419 UDCLASS_VENDOR, 420 UDSUBCLASS_RF, 421 UDPROTO_BLUETOOTH, 422 UMATCH_VENDOR_DEVCLASS_DEVPROTO 423 }, 424 { /* Generic Bluetooth SIG compliant devices */ 425 -1, 426 -1, 427 UDCLASS_WIRELESS, 428 UDSUBCLASS_RF, 429 UDPROTO_BLUETOOTH, 430 UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO 431 }, 432 }; 433 434 int 435 ubt_match(device_t parent, cfdata_t match, void *aux) 436 { 437 struct usb_attach_arg *uaa = aux; 438 size_t i; 439 440 DPRINTFN(50, "ubt_match\n"); 441 442 for (i = 0; i < __arraycount(ubt_dev); i++) { 443 if (ubt_dev[i].vendor != -1 444 && ubt_dev[i].vendor != (int)uaa->uaa_vendor) 445 continue; 446 if (ubt_dev[i].product != -1 447 && ubt_dev[i].product != (int)uaa->uaa_product) 448 continue; 449 if (ubt_dev[i].class != -1 450 && ubt_dev[i].class != uaa->uaa_class) 451 continue; 452 if (ubt_dev[i].subclass != -1 453 && ubt_dev[i].subclass != uaa->uaa_subclass) 454 continue; 455 if (ubt_dev[i].proto != -1 456 && ubt_dev[i].proto != uaa->uaa_proto) 457 continue; 458 459 return ubt_dev[i].match; 460 } 461 462 return UMATCH_NONE; 463 } 464 465 void 466 ubt_attach(device_t parent, device_t self, void *aux) 467 { 468 struct ubt_softc *sc = device_private(self); 469 struct usb_attach_arg *uaa = aux; 470 usb_config_descriptor_t *cd; 471 usb_endpoint_descriptor_t *ed; 472 const struct sysctlnode *node; 473 char *devinfop; 474 int err; 475 uint8_t count, i; 476 477 DPRINTFN(50, "ubt_attach: sc=%p\n", sc); 478 479 sc->sc_dev = self; 480 sc->sc_udev = uaa->uaa_device; 481 482 MBUFQ_INIT(&sc->sc_cmd_queue); 483 MBUFQ_INIT(&sc->sc_aclwr_queue); 484 MBUFQ_INIT(&sc->sc_scowr_queue); 485 486 aprint_naive("\n"); 487 aprint_normal("\n"); 488 489 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 490 aprint_normal_dev(self, "%s\n", devinfop); 491 usbd_devinfo_free(devinfop); 492 493 /* 494 * Move the device into the configured state 495 */ 496 err = usbd_set_config_index(sc->sc_udev, 0, 1); 497 if (err) { 498 aprint_error_dev(self, "failed to set configuration idx 0: %s\n", 499 usbd_errstr(err)); 500 501 return; 502 } 503 504 /* 505 * Interface 0 must have 3 endpoints 506 * 1) Interrupt endpoint to receive HCI events 507 * 2) Bulk IN endpoint to receive ACL data 508 * 3) Bulk OUT endpoint to send ACL data 509 */ 510 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface0); 511 if (err) { 512 aprint_error_dev(self, "Could not get interface 0 handle %s (%d)\n", 513 usbd_errstr(err), err); 514 515 return; 516 } 517 518 sc->sc_evt_addr = -1; 519 sc->sc_aclrd_addr = -1; 520 sc->sc_aclwr_addr = -1; 521 522 count = 0; 523 (void)usbd_endpoint_count(sc->sc_iface0, &count); 524 525 for (i = 0 ; i < count ; i++) { 526 int dir, type; 527 528 ed = usbd_interface2endpoint_descriptor(sc->sc_iface0, i); 529 if (ed == NULL) { 530 aprint_error_dev(self, 531 "could not read endpoint descriptor %d\n", i); 532 533 return; 534 } 535 536 dir = UE_GET_DIR(ed->bEndpointAddress); 537 type = UE_GET_XFERTYPE(ed->bmAttributes); 538 539 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 540 sc->sc_evt_addr = ed->bEndpointAddress; 541 else if (dir == UE_DIR_IN && type == UE_BULK) 542 sc->sc_aclrd_addr = ed->bEndpointAddress; 543 else if (dir == UE_DIR_OUT && type == UE_BULK) 544 sc->sc_aclwr_addr = ed->bEndpointAddress; 545 } 546 547 if (sc->sc_evt_addr == -1) { 548 aprint_error_dev(self, 549 "missing INTERRUPT endpoint on interface 0\n"); 550 551 return; 552 } 553 if (sc->sc_aclrd_addr == -1) { 554 aprint_error_dev(self, 555 "missing BULK IN endpoint on interface 0\n"); 556 557 return; 558 } 559 if (sc->sc_aclwr_addr == -1) { 560 aprint_error_dev(self, 561 "missing BULK OUT endpoint on interface 0\n"); 562 563 return; 564 } 565 566 /* 567 * Interface 1 must have 2 endpoints 568 * 1) Isochronous IN endpoint to receive SCO data 569 * 2) Isochronous OUT endpoint to send SCO data 570 * 571 * and will have several configurations, which can be selected 572 * via a sysctl variable. We select config 0 to start, which 573 * means that no SCO data will be available. 574 */ 575 err = usbd_device2interface_handle(sc->sc_udev, 1, &sc->sc_iface1); 576 if (err) { 577 aprint_error_dev(self, 578 "Could not get interface 1 handle %s (%d)\n", 579 usbd_errstr(err), err); 580 581 return; 582 } 583 584 cd = usbd_get_config_descriptor(sc->sc_udev); 585 if (cd == NULL) { 586 aprint_error_dev(self, "could not get config descriptor\n"); 587 588 return; 589 } 590 591 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 592 593 /* set initial config */ 594 err = ubt_set_isoc_config(sc); 595 if (err) { 596 aprint_error_dev(self, "ISOC config failed\n"); 597 598 return; 599 } 600 601 /* Attach HCI */ 602 sc->sc_unit = hci_attach_pcb(&ubt_hci, sc->sc_dev, 0); 603 604 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 605 sc->sc_dev); 606 607 /* sysctl set-up for alternate configs */ 608 sysctl_createv(&sc->sc_log, 0, NULL, &node, 609 0, 610 CTLTYPE_NODE, device_xname(sc->sc_dev), 611 SYSCTL_DESCR("ubt driver information"), 612 NULL, 0, 613 NULL, 0, 614 CTL_HW, 615 CTL_CREATE, CTL_EOL); 616 617 if (node != NULL) { 618 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 619 CTLFLAG_READWRITE, 620 CTLTYPE_INT, "config", 621 SYSCTL_DESCR("configuration number"), 622 ubt_sysctl_config, 0, 623 (void *)sc, 0, 624 CTL_HW, node->sysctl_num, 625 CTL_CREATE, CTL_EOL); 626 627 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 628 CTLFLAG_READONLY, 629 CTLTYPE_INT, "alt_config", 630 SYSCTL_DESCR("number of alternate configurations"), 631 NULL, 0, 632 &sc->sc_alt_config, sizeof(sc->sc_alt_config), 633 CTL_HW, node->sysctl_num, 634 CTL_CREATE, CTL_EOL); 635 636 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 637 CTLFLAG_READONLY, 638 CTLTYPE_INT, "sco_rxsize", 639 SYSCTL_DESCR("max SCO receive size"), 640 NULL, 0, 641 &sc->sc_scord_size, sizeof(sc->sc_scord_size), 642 CTL_HW, node->sysctl_num, 643 CTL_CREATE, CTL_EOL); 644 645 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 646 CTLFLAG_READONLY, 647 CTLTYPE_INT, "sco_txsize", 648 SYSCTL_DESCR("max SCO transmit size"), 649 NULL, 0, 650 &sc->sc_scowr_size, sizeof(sc->sc_scowr_size), 651 CTL_HW, node->sysctl_num, 652 CTL_CREATE, CTL_EOL); 653 } 654 655 sc->sc_ok = 1; 656 657 if (!pmf_device_register(self, NULL, NULL)) 658 aprint_error_dev(self, "couldn't establish power handler\n"); 659 660 return; 661 } 662 663 int 664 ubt_detach(device_t self, int flags) 665 { 666 struct ubt_softc *sc = device_private(self); 667 int s; 668 669 DPRINTF("sc=%p flags=%d\n", sc, flags); 670 671 pmf_device_deregister(self); 672 673 sc->sc_dying = 1; 674 675 if (!sc->sc_ok) 676 return 0; 677 678 /* delete sysctl nodes */ 679 sysctl_teardown(&sc->sc_log); 680 681 /* Detach HCI interface */ 682 if (sc->sc_unit) { 683 hci_detach_pcb(sc->sc_unit); 684 sc->sc_unit = NULL; 685 } 686 687 /* 688 * Abort all pipes. Causes processes waiting for transfer to wake. 689 * 690 * Actually, hci_detach_pcb() above will call ubt_disable() which 691 * may call ubt_abortdealloc(), but lets be sure since doing it 692 * twice wont cause an error. 693 */ 694 ubt_abortdealloc(sc); 695 696 /* wait for all processes to finish */ 697 s = splusb(); 698 if (sc->sc_refcnt-- > 0) 699 usb_detach_waitold(sc->sc_dev); 700 701 splx(s); 702 703 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 704 sc->sc_dev); 705 706 DPRINTFN(1, "driver detached\n"); 707 708 return 0; 709 } 710 711 int 712 ubt_activate(device_t self, enum devact act) 713 { 714 struct ubt_softc *sc = device_private(self); 715 716 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 717 718 switch (act) { 719 case DVACT_DEACTIVATE: 720 sc->sc_dying = 1; 721 return 0; 722 default: 723 return EOPNOTSUPP; 724 } 725 } 726 727 /* set ISOC configuration */ 728 static int 729 ubt_set_isoc_config(struct ubt_softc *sc) 730 { 731 usb_endpoint_descriptor_t *ed; 732 int rd_addr, wr_addr, rd_size, wr_size; 733 uint8_t count, i; 734 int err; 735 736 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 737 if (err != USBD_NORMAL_COMPLETION) { 738 aprint_error_dev(sc->sc_dev, 739 "Could not set config %d on ISOC interface. %s (%d)\n", 740 sc->sc_config, usbd_errstr(err), err); 741 742 return err == USBD_IN_USE ? EBUSY : EIO; 743 } 744 745 /* 746 * We wont get past the above if there are any pipes open, so no 747 * need to worry about buf/xfer/pipe deallocation. If we get an 748 * error after this, the frame quantities will be 0 and no SCO 749 * data will be possible. 750 */ 751 752 sc->sc_scord_size = rd_size = 0; 753 sc->sc_scord_addr = rd_addr = -1; 754 755 sc->sc_scowr_size = wr_size = 0; 756 sc->sc_scowr_addr = wr_addr = -1; 757 758 count = 0; 759 (void)usbd_endpoint_count(sc->sc_iface1, &count); 760 761 for (i = 0 ; i < count ; i++) { 762 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 763 if (ed == NULL) { 764 aprint_error_dev(sc->sc_dev, 765 "could not read endpoint descriptor %d\n", i); 766 767 return EIO; 768 } 769 770 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 771 device_xname(sc->sc_dev), 772 UE_GET_XFERTYPE(ed->bmAttributes), 773 UE_GET_ISO_TYPE(ed->bmAttributes), 774 ed->bEndpointAddress, 775 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 776 777 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 778 continue; 779 780 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 781 rd_addr = ed->bEndpointAddress; 782 rd_size = UGETW(ed->wMaxPacketSize); 783 } else { 784 wr_addr = ed->bEndpointAddress; 785 wr_size = UGETW(ed->wMaxPacketSize); 786 } 787 } 788 789 if (rd_addr == -1) { 790 aprint_error_dev(sc->sc_dev, 791 "missing ISOC IN endpoint on interface config %d\n", 792 sc->sc_config); 793 794 return ENOENT; 795 } 796 if (wr_addr == -1) { 797 aprint_error_dev(sc->sc_dev, 798 "missing ISOC OUT endpoint on interface config %d\n", 799 sc->sc_config); 800 801 return ENOENT; 802 } 803 804 if (rd_size > MLEN) { 805 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 806 rd_size); 807 808 return EOVERFLOW; 809 } 810 811 if (wr_size > MLEN) { 812 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 813 wr_size); 814 815 return EOVERFLOW; 816 } 817 818 sc->sc_scord_size = rd_size; 819 sc->sc_scord_addr = rd_addr; 820 821 sc->sc_scowr_size = wr_size; 822 sc->sc_scowr_addr = wr_addr; 823 824 return 0; 825 } 826 827 /* sysctl helper to set alternate configurations */ 828 static int 829 ubt_sysctl_config(SYSCTLFN_ARGS) 830 { 831 struct sysctlnode node; 832 struct ubt_softc *sc; 833 int t, error; 834 835 node = *rnode; 836 sc = node.sysctl_data; 837 838 t = sc->sc_config; 839 node.sysctl_data = &t; 840 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 841 if (error || newp == NULL) 842 return error; 843 844 if (t < 0 || t >= sc->sc_alt_config) 845 return EINVAL; 846 847 /* This may not change when the unit is enabled */ 848 if (sc->sc_enabled) 849 return EBUSY; 850 851 KERNEL_LOCK(1, curlwp); 852 sc->sc_config = t; 853 error = ubt_set_isoc_config(sc); 854 KERNEL_UNLOCK_ONE(curlwp); 855 return error; 856 } 857 858 static void 859 ubt_abortdealloc(struct ubt_softc *sc) 860 { 861 int i; 862 863 DPRINTFN(1, "sc=%p\n", sc); 864 865 /* Abort all pipes */ 866 usbd_abort_default_pipe(sc->sc_udev); 867 868 if (sc->sc_evt_pipe != NULL) { 869 usbd_abort_pipe(sc->sc_evt_pipe); 870 } 871 872 if (sc->sc_aclrd_pipe != NULL) { 873 usbd_abort_pipe(sc->sc_aclrd_pipe); 874 } 875 876 if (sc->sc_aclwr_pipe != NULL) { 877 usbd_abort_pipe(sc->sc_aclwr_pipe); 878 } 879 880 if (sc->sc_scord_pipe != NULL) { 881 usbd_abort_pipe(sc->sc_scord_pipe); 882 } 883 884 if (sc->sc_scowr_pipe != NULL) { 885 usbd_abort_pipe(sc->sc_scowr_pipe); 886 } 887 888 /* Free event buffer */ 889 if (sc->sc_evt_buf != NULL) { 890 kmem_free(sc->sc_evt_buf, UBT_BUFSIZ_EVENT); 891 sc->sc_evt_buf = NULL; 892 } 893 894 /* Free all xfers and xfer buffers (implicit) */ 895 if (sc->sc_cmd_xfer != NULL) { 896 usbd_destroy_xfer(sc->sc_cmd_xfer); 897 sc->sc_cmd_xfer = NULL; 898 sc->sc_cmd_buf = NULL; 899 } 900 901 if (sc->sc_aclrd_xfer != NULL) { 902 usbd_destroy_xfer(sc->sc_aclrd_xfer); 903 sc->sc_aclrd_xfer = NULL; 904 sc->sc_aclrd_buf = NULL; 905 } 906 907 if (sc->sc_aclwr_xfer != NULL) { 908 usbd_destroy_xfer(sc->sc_aclwr_xfer); 909 sc->sc_aclwr_xfer = NULL; 910 sc->sc_aclwr_buf = NULL; 911 } 912 913 for (i = 0 ; i < UBT_NXFERS ; i++) { 914 if (sc->sc_scord[i].xfer != NULL) { 915 usbd_destroy_xfer(sc->sc_scord[i].xfer); 916 sc->sc_scord[i].xfer = NULL; 917 sc->sc_scord[i].buf = NULL; 918 } 919 920 if (sc->sc_scowr[i].xfer != NULL) { 921 usbd_destroy_xfer(sc->sc_scowr[i].xfer); 922 sc->sc_scowr[i].xfer = NULL; 923 sc->sc_scowr[i].buf = NULL; 924 } 925 } 926 927 if (sc->sc_evt_pipe != NULL) { 928 usbd_close_pipe(sc->sc_evt_pipe); 929 sc->sc_evt_pipe = NULL; 930 } 931 932 if (sc->sc_aclrd_pipe != NULL) { 933 usbd_close_pipe(sc->sc_aclrd_pipe); 934 sc->sc_aclrd_pipe = NULL; 935 } 936 937 if (sc->sc_aclwr_pipe != NULL) { 938 usbd_close_pipe(sc->sc_aclwr_pipe); 939 sc->sc_aclwr_pipe = NULL; 940 } 941 942 if (sc->sc_scord_pipe != NULL) { 943 usbd_close_pipe(sc->sc_scord_pipe); 944 sc->sc_scord_pipe = NULL; 945 } 946 947 if (sc->sc_scowr_pipe != NULL) { 948 usbd_close_pipe(sc->sc_scowr_pipe); 949 sc->sc_scowr_pipe = NULL; 950 } 951 952 /* Free partial SCO packets */ 953 if (sc->sc_scord_mbuf != NULL) { 954 m_freem(sc->sc_scord_mbuf); 955 sc->sc_scord_mbuf = NULL; 956 } 957 958 if (sc->sc_scowr_mbuf != NULL) { 959 m_freem(sc->sc_scowr_mbuf); 960 sc->sc_scowr_mbuf = NULL; 961 } 962 963 /* Empty mbuf queues */ 964 MBUFQ_DRAIN(&sc->sc_cmd_queue); 965 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 966 MBUFQ_DRAIN(&sc->sc_scowr_queue); 967 } 968 969 /******************************************************************************* 970 * 971 * Bluetooth Unit/USB callbacks 972 * 973 */ 974 static int 975 ubt_enable(device_t self) 976 { 977 struct ubt_softc *sc = device_private(self); 978 usbd_status err; 979 int s, i, error; 980 981 DPRINTFN(1, "sc=%p\n", sc); 982 983 if (sc->sc_enabled) 984 return 0; 985 986 s = splusb(); 987 988 /* Events */ 989 sc->sc_evt_buf = kmem_alloc(UBT_BUFSIZ_EVENT, KM_SLEEP); 990 if (sc->sc_evt_buf == NULL) { 991 error = ENOMEM; 992 goto bad; 993 } 994 err = usbd_open_pipe_intr(sc->sc_iface0, 995 sc->sc_evt_addr, 996 USBD_SHORT_XFER_OK, 997 &sc->sc_evt_pipe, 998 sc, 999 sc->sc_evt_buf, 1000 UBT_BUFSIZ_EVENT, 1001 ubt_recv_event, 1002 USBD_DEFAULT_INTERVAL); 1003 if (err != USBD_NORMAL_COMPLETION) { 1004 error = EIO; 1005 goto bad; 1006 } 1007 1008 /* Commands */ 1009 struct usbd_pipe *pipe0 = usbd_get_pipe0(sc->sc_udev); 1010 error = usbd_create_xfer(pipe0, UBT_BUFSIZ_CMD, 0, 0, 1011 &sc->sc_cmd_xfer); 1012 if (error) 1013 goto bad; 1014 sc->sc_cmd_buf = usbd_get_buffer(sc->sc_cmd_xfer); 1015 sc->sc_cmd_busy = 0; 1016 1017 /* ACL read */ 1018 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 1019 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 1020 if (err != USBD_NORMAL_COMPLETION) { 1021 error = EIO; 1022 goto bad; 1023 } 1024 error = usbd_create_xfer(sc->sc_aclrd_pipe, UBT_BUFSIZ_ACL, 1025 USBD_SHORT_XFER_OK, 0, &sc->sc_aclrd_xfer); 1026 if (error) 1027 goto bad; 1028 sc->sc_aclrd_buf = usbd_get_buffer(sc->sc_aclrd_xfer); 1029 sc->sc_aclrd_busy = 0; 1030 ubt_recv_acl_start(sc); 1031 1032 /* ACL write */ 1033 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 1034 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 1035 if (err != USBD_NORMAL_COMPLETION) { 1036 error = EIO; 1037 goto bad; 1038 } 1039 error = usbd_create_xfer(sc->sc_aclwr_pipe, UBT_BUFSIZ_ACL, 1040 USBD_FORCE_SHORT_XFER, 0, &sc->sc_aclwr_xfer); 1041 if (error) 1042 goto bad; 1043 sc->sc_aclwr_buf = usbd_get_buffer(sc->sc_aclwr_xfer); 1044 sc->sc_aclwr_busy = 0; 1045 1046 /* SCO read */ 1047 if (sc->sc_scord_size > 0) { 1048 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 1049 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 1050 if (err != USBD_NORMAL_COMPLETION) { 1051 error = EIO; 1052 goto bad; 1053 } 1054 1055 for (i = 0 ; i < UBT_NXFERS ; i++) { 1056 error = usbd_create_xfer(sc->sc_scord_pipe, 1057 sc->sc_scord_size * UBT_NFRAMES, 1058 USBD_SHORT_XFER_OK, UBT_NFRAMES, 1059 &sc->sc_scord[i].xfer); 1060 if (error) 1061 goto bad; 1062 1063 sc->sc_scord[i].buf = 1064 usbd_get_buffer(sc->sc_scord[i].xfer); 1065 sc->sc_scord[i].softc = sc; 1066 sc->sc_scord[i].busy = 0; 1067 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 1068 } 1069 } 1070 1071 /* SCO write */ 1072 if (sc->sc_scowr_size > 0) { 1073 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 1074 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 1075 if (err != USBD_NORMAL_COMPLETION) { 1076 error = EIO; 1077 goto bad; 1078 } 1079 1080 for (i = 0 ; i < UBT_NXFERS ; i++) { 1081 error = usbd_create_xfer(sc->sc_scowr_pipe, 1082 sc->sc_scowr_size * UBT_NFRAMES, 1083 USBD_FORCE_SHORT_XFER, UBT_NFRAMES, 1084 &sc->sc_scowr[i].xfer); 1085 if (error) 1086 goto bad; 1087 sc->sc_scowr[i].buf = 1088 usbd_get_buffer(sc->sc_scowr[i].xfer); 1089 sc->sc_scowr[i].softc = sc; 1090 sc->sc_scowr[i].busy = 0; 1091 } 1092 1093 sc->sc_scowr_busy = 0; 1094 } 1095 1096 sc->sc_enabled = 1; 1097 splx(s); 1098 return 0; 1099 1100 bad: 1101 ubt_abortdealloc(sc); 1102 splx(s); 1103 return error; 1104 } 1105 1106 static void 1107 ubt_disable(device_t self) 1108 { 1109 struct ubt_softc *sc = device_private(self); 1110 int s; 1111 1112 DPRINTFN(1, "sc=%p\n", sc); 1113 1114 if (sc->sc_enabled == 0) 1115 return; 1116 1117 s = splusb(); 1118 ubt_abortdealloc(sc); 1119 1120 sc->sc_enabled = 0; 1121 splx(s); 1122 } 1123 1124 static void 1125 ubt_xmit_cmd(device_t self, struct mbuf *m) 1126 { 1127 struct ubt_softc *sc = device_private(self); 1128 int s; 1129 1130 KASSERT(sc->sc_enabled); 1131 1132 s = splusb(); 1133 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1134 1135 if (sc->sc_cmd_busy == 0) 1136 ubt_xmit_cmd_start(sc); 1137 1138 splx(s); 1139 } 1140 1141 static void 1142 ubt_xmit_cmd_start(struct ubt_softc *sc) 1143 { 1144 usb_device_request_t req; 1145 usbd_status status; 1146 struct mbuf *m; 1147 int len; 1148 1149 if (sc->sc_dying) 1150 return; 1151 1152 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1153 return; 1154 1155 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1156 KASSERT(m != NULL); 1157 1158 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1159 device_xname(sc->sc_dev), m->m_pkthdr.len); 1160 1161 sc->sc_refcnt++; 1162 sc->sc_cmd_busy = 1; 1163 1164 len = m->m_pkthdr.len - 1; 1165 m_copydata(m, 1, len, sc->sc_cmd_buf); 1166 m_freem(m); 1167 1168 memset(&req, 0, sizeof(req)); 1169 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1170 USETW(req.wLength, len); 1171 1172 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1173 sc->sc_udev, 1174 sc, 1175 UBT_CMD_TIMEOUT, 1176 &req, 1177 sc->sc_cmd_buf, 1178 len, 1179 USBD_FORCE_SHORT_XFER, 1180 ubt_xmit_cmd_complete); 1181 1182 status = usbd_transfer(sc->sc_cmd_xfer); 1183 1184 KASSERT(status != USBD_NORMAL_COMPLETION); 1185 1186 if (status != USBD_IN_PROGRESS) { 1187 DPRINTF("usbd_transfer status=%s (%d)\n", 1188 usbd_errstr(status), status); 1189 1190 sc->sc_refcnt--; 1191 sc->sc_cmd_busy = 0; 1192 } 1193 } 1194 1195 static void 1196 ubt_xmit_cmd_complete(struct usbd_xfer *xfer, 1197 void * h, usbd_status status) 1198 { 1199 struct ubt_softc *sc = h; 1200 uint32_t count; 1201 1202 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1203 device_xname(sc->sc_dev), usbd_errstr(status), status); 1204 1205 sc->sc_cmd_busy = 0; 1206 1207 if (--sc->sc_refcnt < 0) { 1208 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1209 usb_detach_wakeupold(sc->sc_dev); 1210 return; 1211 } 1212 1213 if (sc->sc_dying) { 1214 DPRINTF("sc_dying\n"); 1215 return; 1216 } 1217 1218 if (status != USBD_NORMAL_COMPLETION) { 1219 DPRINTF("status=%s (%d)\n", 1220 usbd_errstr(status), status); 1221 1222 sc->sc_stats.err_tx++; 1223 return; 1224 } 1225 1226 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1227 sc->sc_stats.cmd_tx++; 1228 sc->sc_stats.byte_tx += count; 1229 1230 ubt_xmit_cmd_start(sc); 1231 } 1232 1233 static void 1234 ubt_xmit_acl(device_t self, struct mbuf *m) 1235 { 1236 struct ubt_softc *sc = device_private(self); 1237 int s; 1238 1239 KASSERT(sc->sc_enabled); 1240 1241 s = splusb(); 1242 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1243 1244 if (sc->sc_aclwr_busy == 0) 1245 ubt_xmit_acl_start(sc); 1246 1247 splx(s); 1248 } 1249 1250 static void 1251 ubt_xmit_acl_start(struct ubt_softc *sc) 1252 { 1253 struct mbuf *m; 1254 usbd_status status; 1255 int len; 1256 1257 if (sc->sc_dying) 1258 return; 1259 1260 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1261 return; 1262 1263 sc->sc_refcnt++; 1264 sc->sc_aclwr_busy = 1; 1265 1266 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1267 KASSERT(m != NULL); 1268 1269 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1270 device_xname(sc->sc_dev), m->m_pkthdr.len); 1271 1272 len = m->m_pkthdr.len - 1; 1273 if (len > UBT_BUFSIZ_ACL) { 1274 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1275 device_xname(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1276 1277 len = UBT_BUFSIZ_ACL; 1278 } 1279 1280 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1281 m_freem(m); 1282 1283 sc->sc_stats.acl_tx++; 1284 sc->sc_stats.byte_tx += len; 1285 1286 usbd_setup_xfer(sc->sc_aclwr_xfer, 1287 sc, 1288 sc->sc_aclwr_buf, 1289 len, 1290 USBD_FORCE_SHORT_XFER, 1291 UBT_ACL_TIMEOUT, 1292 ubt_xmit_acl_complete); 1293 1294 status = usbd_transfer(sc->sc_aclwr_xfer); 1295 1296 KASSERT(status != USBD_NORMAL_COMPLETION); 1297 1298 if (status != USBD_IN_PROGRESS) { 1299 DPRINTF("usbd_transfer status=%s (%d)\n", 1300 usbd_errstr(status), status); 1301 1302 sc->sc_refcnt--; 1303 sc->sc_aclwr_busy = 0; 1304 } 1305 } 1306 1307 static void 1308 ubt_xmit_acl_complete(struct usbd_xfer *xfer, 1309 void * h, usbd_status status) 1310 { 1311 struct ubt_softc *sc = h; 1312 1313 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1314 device_xname(sc->sc_dev), usbd_errstr(status), status); 1315 1316 sc->sc_aclwr_busy = 0; 1317 1318 if (--sc->sc_refcnt < 0) { 1319 usb_detach_wakeupold(sc->sc_dev); 1320 return; 1321 } 1322 1323 if (sc->sc_dying) 1324 return; 1325 1326 if (status != USBD_NORMAL_COMPLETION) { 1327 DPRINTF("status=%s (%d)\n", 1328 usbd_errstr(status), status); 1329 1330 sc->sc_stats.err_tx++; 1331 1332 if (status == USBD_STALLED) 1333 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1334 else 1335 return; 1336 } 1337 1338 ubt_xmit_acl_start(sc); 1339 } 1340 1341 static void 1342 ubt_xmit_sco(device_t self, struct mbuf *m) 1343 { 1344 struct ubt_softc *sc = device_private(self); 1345 int s; 1346 1347 KASSERT(sc->sc_enabled); 1348 1349 s = splusb(); 1350 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1351 1352 if (sc->sc_scowr_busy == 0) 1353 ubt_xmit_sco_start(sc); 1354 1355 splx(s); 1356 } 1357 1358 static void 1359 ubt_xmit_sco_start(struct ubt_softc *sc) 1360 { 1361 int i; 1362 1363 if (sc->sc_dying || sc->sc_scowr_size == 0) 1364 return; 1365 1366 for (i = 0 ; i < UBT_NXFERS ; i++) { 1367 if (sc->sc_scowr[i].busy) 1368 continue; 1369 1370 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1371 } 1372 } 1373 1374 static void 1375 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1376 { 1377 struct mbuf *m; 1378 uint8_t *buf; 1379 int num, len, size, space; 1380 1381 space = sc->sc_scowr_size * UBT_NFRAMES; 1382 buf = isoc->buf; 1383 len = 0; 1384 1385 /* 1386 * Fill the request buffer with data from the queue, 1387 * keeping any leftover packet on our private hook. 1388 * 1389 * Complete packets are passed back up to the stack 1390 * for disposal, since we can't rely on the controller 1391 * to tell us when it has finished with them. 1392 */ 1393 1394 m = sc->sc_scowr_mbuf; 1395 while (space > 0) { 1396 if (m == NULL) { 1397 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1398 if (m == NULL) 1399 break; 1400 1401 m_adj(m, 1); /* packet type */ 1402 } 1403 1404 if (m->m_pkthdr.len > 0) { 1405 size = MIN(m->m_pkthdr.len, space); 1406 1407 m_copydata(m, 0, size, buf); 1408 m_adj(m, size); 1409 1410 buf += size; 1411 len += size; 1412 space -= size; 1413 } 1414 1415 if (m->m_pkthdr.len == 0) { 1416 sc->sc_stats.sco_tx++; 1417 if (!hci_complete_sco(sc->sc_unit, m)) 1418 sc->sc_stats.err_tx++; 1419 1420 m = NULL; 1421 } 1422 } 1423 sc->sc_scowr_mbuf = m; 1424 1425 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1426 1427 if (len == 0) /* nothing to send */ 1428 return; 1429 1430 sc->sc_refcnt++; 1431 sc->sc_scowr_busy = 1; 1432 sc->sc_stats.byte_tx += len; 1433 isoc->busy = 1; 1434 1435 /* 1436 * calculate number of isoc frames and sizes 1437 */ 1438 1439 for (num = 0 ; len > 0 ; num++) { 1440 size = MIN(sc->sc_scowr_size, len); 1441 1442 isoc->size[num] = size; 1443 len -= size; 1444 } 1445 1446 usbd_setup_isoc_xfer(isoc->xfer, 1447 isoc, 1448 isoc->size, 1449 num, 1450 USBD_FORCE_SHORT_XFER, 1451 ubt_xmit_sco_complete); 1452 1453 usbd_transfer(isoc->xfer); 1454 } 1455 1456 static void 1457 ubt_xmit_sco_complete(struct usbd_xfer *xfer, 1458 void * h, usbd_status status) 1459 { 1460 struct ubt_isoc_xfer *isoc = h; 1461 struct ubt_softc *sc; 1462 int i; 1463 1464 KASSERT(xfer == isoc->xfer); 1465 sc = isoc->softc; 1466 1467 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1468 isoc, usbd_errstr(status), status); 1469 1470 isoc->busy = 0; 1471 1472 for (i = 0 ; ; i++) { 1473 if (i == UBT_NXFERS) { 1474 sc->sc_scowr_busy = 0; 1475 break; 1476 } 1477 1478 if (sc->sc_scowr[i].busy) 1479 break; 1480 } 1481 1482 if (--sc->sc_refcnt < 0) { 1483 usb_detach_wakeupold(sc->sc_dev); 1484 return; 1485 } 1486 1487 if (sc->sc_dying) 1488 return; 1489 1490 if (status != USBD_NORMAL_COMPLETION) { 1491 DPRINTF("status=%s (%d)\n", 1492 usbd_errstr(status), status); 1493 1494 sc->sc_stats.err_tx++; 1495 1496 if (status == USBD_STALLED) 1497 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1498 else 1499 return; 1500 } 1501 1502 ubt_xmit_sco_start(sc); 1503 } 1504 1505 /* 1506 * load incoming data into an mbuf with 1507 * leading type byte 1508 */ 1509 static struct mbuf * 1510 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1511 { 1512 struct mbuf *m; 1513 1514 MGETHDR(m, M_DONTWAIT, MT_DATA); 1515 if (m == NULL) 1516 return NULL; 1517 1518 *mtod(m, uint8_t *) = type; 1519 m->m_pkthdr.len = m->m_len = MHLEN; 1520 m_copyback(m, 1, count, buf); // (extends if necessary) 1521 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1522 m_free(m); 1523 return NULL; 1524 } 1525 1526 m->m_pkthdr.len = count + 1; 1527 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1528 1529 return m; 1530 } 1531 1532 static void 1533 ubt_recv_event(struct usbd_xfer *xfer, void * h, usbd_status status) 1534 { 1535 struct ubt_softc *sc = h; 1536 struct mbuf *m; 1537 uint32_t count; 1538 void *buf; 1539 1540 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1541 sc, usbd_errstr(status), status); 1542 1543 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1544 return; 1545 1546 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1547 1548 if (count < sizeof(hci_event_hdr_t) - 1) { 1549 DPRINTF("dumped undersized event (count = %d)\n", count); 1550 sc->sc_stats.err_rx++; 1551 return; 1552 } 1553 1554 sc->sc_stats.evt_rx++; 1555 sc->sc_stats.byte_rx += count; 1556 1557 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1558 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1559 sc->sc_stats.err_rx++; 1560 } 1561 1562 static void 1563 ubt_recv_acl_start(struct ubt_softc *sc) 1564 { 1565 usbd_status status; 1566 1567 DPRINTFN(15, "sc=%p\n", sc); 1568 1569 if (sc->sc_aclrd_busy || sc->sc_dying) { 1570 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1571 sc->sc_aclrd_busy, 1572 sc->sc_dying); 1573 1574 return; 1575 } 1576 1577 sc->sc_refcnt++; 1578 sc->sc_aclrd_busy = 1; 1579 1580 usbd_setup_xfer(sc->sc_aclrd_xfer, 1581 sc, 1582 sc->sc_aclrd_buf, 1583 UBT_BUFSIZ_ACL, 1584 USBD_SHORT_XFER_OK, 1585 USBD_NO_TIMEOUT, 1586 ubt_recv_acl_complete); 1587 1588 status = usbd_transfer(sc->sc_aclrd_xfer); 1589 1590 KASSERT(status != USBD_NORMAL_COMPLETION); 1591 1592 if (status != USBD_IN_PROGRESS) { 1593 DPRINTF("usbd_transfer status=%s (%d)\n", 1594 usbd_errstr(status), status); 1595 1596 sc->sc_refcnt--; 1597 sc->sc_aclrd_busy = 0; 1598 } 1599 } 1600 1601 static void 1602 ubt_recv_acl_complete(struct usbd_xfer *xfer, 1603 void * h, usbd_status status) 1604 { 1605 struct ubt_softc *sc = h; 1606 struct mbuf *m; 1607 uint32_t count; 1608 void *buf; 1609 1610 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1611 sc, usbd_errstr(status), status); 1612 1613 sc->sc_aclrd_busy = 0; 1614 1615 if (--sc->sc_refcnt < 0) { 1616 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1617 usb_detach_wakeupold(sc->sc_dev); 1618 return; 1619 } 1620 1621 if (sc->sc_dying) { 1622 DPRINTF("sc_dying\n"); 1623 return; 1624 } 1625 1626 if (status != USBD_NORMAL_COMPLETION) { 1627 DPRINTF("status=%s (%d)\n", 1628 usbd_errstr(status), status); 1629 1630 sc->sc_stats.err_rx++; 1631 1632 if (status == USBD_STALLED) 1633 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1634 else 1635 return; 1636 } else { 1637 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1638 1639 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1640 DPRINTF("dumped undersized packet (%d)\n", count); 1641 sc->sc_stats.err_rx++; 1642 } else { 1643 sc->sc_stats.acl_rx++; 1644 sc->sc_stats.byte_rx += count; 1645 1646 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1647 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1648 sc->sc_stats.err_rx++; 1649 } 1650 } 1651 1652 /* and restart */ 1653 ubt_recv_acl_start(sc); 1654 } 1655 1656 static void 1657 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1658 { 1659 int i; 1660 1661 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1662 1663 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1664 DPRINTF("%s%s%s\n", 1665 isoc->busy ? " busy" : "", 1666 sc->sc_dying ? " dying" : "", 1667 sc->sc_scord_size == 0 ? " size=0" : ""); 1668 1669 return; 1670 } 1671 1672 sc->sc_refcnt++; 1673 isoc->busy = 1; 1674 1675 for (i = 0 ; i < UBT_NFRAMES ; i++) 1676 isoc->size[i] = sc->sc_scord_size; 1677 1678 usbd_setup_isoc_xfer(isoc->xfer, 1679 isoc, 1680 isoc->size, 1681 UBT_NFRAMES, 1682 USBD_SHORT_XFER_OK, 1683 ubt_recv_sco_complete); 1684 1685 usbd_transfer(isoc->xfer); 1686 } 1687 1688 static void 1689 ubt_recv_sco_complete(struct usbd_xfer *xfer, 1690 void * h, usbd_status status) 1691 { 1692 struct ubt_isoc_xfer *isoc = h; 1693 struct ubt_softc *sc; 1694 struct mbuf *m; 1695 uint32_t count; 1696 uint8_t *ptr, *frame; 1697 int i, size, got, want; 1698 1699 KASSERT(isoc != NULL); 1700 KASSERT(isoc->xfer == xfer); 1701 1702 sc = isoc->softc; 1703 isoc->busy = 0; 1704 1705 if (--sc->sc_refcnt < 0) { 1706 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1707 usb_detach_wakeupold(sc->sc_dev); 1708 return; 1709 } 1710 1711 if (sc->sc_dying) { 1712 DPRINTF("sc_dying\n"); 1713 return; 1714 } 1715 1716 if (status != USBD_NORMAL_COMPLETION) { 1717 DPRINTF("status=%s (%d)\n", 1718 usbd_errstr(status), status); 1719 1720 sc->sc_stats.err_rx++; 1721 1722 if (status == USBD_STALLED) { 1723 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1724 goto restart; 1725 } 1726 1727 return; 1728 } 1729 1730 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1731 if (count == 0) 1732 goto restart; 1733 1734 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1735 sc, isoc, count); 1736 1737 sc->sc_stats.byte_rx += count; 1738 1739 /* 1740 * Extract SCO packets from ISOC frames. The way we have it, 1741 * no SCO packet can be bigger than MHLEN. This is unlikely 1742 * to actually happen, but if we ran out of mbufs and lost 1743 * sync then we may get spurious data that makes it seem that 1744 * way, so we discard data that wont fit. This doesnt really 1745 * help with the lost sync situation alas. 1746 */ 1747 1748 m = sc->sc_scord_mbuf; 1749 if (m != NULL) { 1750 sc->sc_scord_mbuf = NULL; 1751 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1752 got = m->m_pkthdr.len; 1753 want = sizeof(hci_scodata_hdr_t); 1754 if (got >= want) 1755 want += mtod(m, hci_scodata_hdr_t *)->length ; 1756 } else { 1757 ptr = NULL; 1758 got = 0; 1759 want = 0; 1760 } 1761 1762 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1763 frame = isoc->buf + (i * sc->sc_scord_size); 1764 1765 while (isoc->size[i] > 0) { 1766 size = isoc->size[i]; 1767 1768 if (m == NULL) { 1769 MGETHDR(m, M_DONTWAIT, MT_DATA); 1770 if (m == NULL) { 1771 aprint_error_dev(sc->sc_dev, 1772 "out of memory (xfer halted)\n"); 1773 1774 sc->sc_stats.err_rx++; 1775 return; /* lost sync */ 1776 } 1777 1778 ptr = mtod(m, uint8_t *); 1779 *ptr++ = HCI_SCO_DATA_PKT; 1780 got = 1; 1781 want = sizeof(hci_scodata_hdr_t); 1782 } 1783 1784 if (got + size > want) 1785 size = want - got; 1786 1787 memcpy(ptr, frame, size); 1788 1789 ptr += size; 1790 got += size; 1791 frame += size; 1792 1793 if (got == want) { 1794 /* 1795 * If we only got a header, add the packet 1796 * length to our want count. Send complete 1797 * packets up to protocol stack. 1798 */ 1799 if (want == sizeof(hci_scodata_hdr_t)) { 1800 uint32_t len = 1801 mtod(m, hci_scodata_hdr_t *)->length; 1802 want += len; 1803 if (len == 0 || want > MHLEN) { 1804 aprint_error_dev(sc->sc_dev, 1805 "packet too large %u " 1806 "(lost sync)\n", len); 1807 sc->sc_stats.err_rx++; 1808 return; 1809 } 1810 } 1811 1812 if (got == want) { 1813 m->m_pkthdr.len = m->m_len = got; 1814 sc->sc_stats.sco_rx++; 1815 if (!hci_input_sco(sc->sc_unit, m)) 1816 sc->sc_stats.err_rx++; 1817 1818 m = NULL; 1819 } 1820 } 1821 1822 isoc->size[i] -= size; 1823 } 1824 } 1825 1826 if (m != NULL) { 1827 m->m_pkthdr.len = m->m_len = got; 1828 sc->sc_scord_mbuf = m; 1829 } 1830 1831 restart: /* and restart */ 1832 ubt_recv_sco_start1(sc, isoc); 1833 } 1834 1835 void 1836 ubt_stats(device_t self, struct bt_stats *dest, int flush) 1837 { 1838 struct ubt_softc *sc = device_private(self); 1839 int s; 1840 1841 s = splusb(); 1842 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1843 1844 if (flush) 1845 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1846 1847 splx(s); 1848 } 1849
Indexes created Thu Sep 25 16:09:42 GMT 2025