1 /* $NetBSD: ubt.c,v 1.67 2024/07/05 04:31:52 rin 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 (dsainty (at) NetBSD.org). 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 1.67 2024/07/05 04:31:52 rin Exp $"); 71 72 #ifdef _KERNEL_OPT 73 #include "opt_usb.h" 74 #endif 75 76 #include <sys/param.h> 77 #include <sys/device.h> 78 #include <sys/ioctl.h> 79 #include <sys/kernel.h> 80 #include <sys/kmem.h> 81 #include <sys/mbuf.h> 82 #include <sys/proc.h> 83 #include <sys/sysctl.h> 84 #include <sys/systm.h> 85 86 #include <dev/usb/usb.h> 87 #include <dev/usb/usbdi.h> 88 #include <dev/usb/usbdi_util.h> 89 #include <dev/usb/usbdevs.h> 90 91 #include <netbt/bluetooth.h> 92 #include <netbt/hci.h> 93 94 /******************************************************************************* 95 * 96 * debugging stuff 97 */ 98 #undef DPRINTF 99 #undef DPRINTFN 100 101 #ifdef UBT_DEBUG 102 int ubt_debug = 0; 103 104 #define DPRINTF(...) do { \ 105 if (ubt_debug) { \ 106 printf("%s: ", __func__); \ 107 printf(__VA_ARGS__); \ 108 } \ 109 } while (/* CONSTCOND */0) 110 111 #define DPRINTFN(n, ...) do { \ 112 if (ubt_debug > (n)) { \ 113 printf("%s: ", __func__); \ 114 printf(__VA_ARGS__); \ 115 } \ 116 } while (/* CONSTCOND */0) 117 118 SYSCTL_SETUP(sysctl_hw_ubt_debug_setup, "sysctl hw.ubt_debug setup") 119 { 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 struct usbd_xfer *xfer; 168 uint8_t *buf; 169 uint16_t size[UBT_NFRAMES]; 170 int busy; 171 }; 172 173 struct ubt_softc { 174 device_t sc_dev; 175 struct usbd_device *sc_udev; 176 int sc_refcnt; 177 int sc_dying; 178 int sc_enabled; 179 180 /* Control Interface */ 181 struct usbd_interface * sc_iface0; 182 183 /* Commands (control) */ 184 struct usbd_xfer *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 struct usbd_pipe *sc_evt_pipe; 192 uint8_t *sc_evt_buf; 193 194 /* ACL data (in) */ 195 int sc_aclrd_addr; /* endpoint address */ 196 struct usbd_pipe *sc_aclrd_pipe; /* read pipe */ 197 struct usbd_xfer *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 struct usbd_pipe *sc_aclwr_pipe; /* write pipe */ 204 struct usbd_xfer *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 struct usbd_interface *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 struct usbd_pipe *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 struct usbd_pipe *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_t); 245 static void ubt_disable(device_t); 246 247 static void ubt_xmit_cmd(device_t, struct mbuf *); 248 static void ubt_xmit_cmd_start(struct ubt_softc *); 249 static void ubt_xmit_cmd_complete(struct usbd_xfer *, 250 void *, usbd_status); 251 252 static void ubt_xmit_acl(device_t, struct mbuf *); 253 static void ubt_xmit_acl_start(struct ubt_softc *); 254 static void ubt_xmit_acl_complete(struct usbd_xfer *, 255 void *, usbd_status); 256 257 static void ubt_xmit_sco(device_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(struct usbd_xfer *, 261 void *, usbd_status); 262 263 static void ubt_recv_event(struct usbd_xfer *, 264 void *, usbd_status); 265 266 static void ubt_recv_acl_start(struct ubt_softc *); 267 static void ubt_recv_acl_complete(struct usbd_xfer *, 268 void *, usbd_status); 269 270 static void ubt_recv_sco_start1(struct ubt_softc *, struct ubt_isoc_xfer *); 271 static void ubt_recv_sco_complete(struct usbd_xfer *, 272 void *, usbd_status); 273 274 static void ubt_stats(device_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_SOFTUSB, 284 }; 285 286 /******************************************************************************* 287 * 288 * USB Autoconfig stuff 289 * 290 */ 291 292 static int ubt_match(device_t, cfdata_t, void *); 293 static void ubt_attach(device_t, device_t, void *); 294 static int ubt_detach(device_t, int); 295 static int ubt_activate(device_t, enum devact); 296 297 CFATTACH_DECL_NEW(ubt, sizeof(struct ubt_softc), ubt_match, ubt_attach, 298 ubt_detach, ubt_activate); 299 300 static int ubt_set_isoc_config(struct ubt_softc *); 301 static int ubt_sysctl_config(SYSCTLFN_PROTO); 302 static void ubt_abortdealloc(struct ubt_softc *); 303 304 /* 305 * To match or ignore, add details to the ubt_dev list. 306 * Use value of -1 to indicate a wildcard 307 * To override another entry, add details earlier 308 */ 309 static const struct ubt_devno { 310 int vendor; 311 int product; 312 int class; 313 int subclass; 314 int proto; 315 int match; 316 } ubt_dev[] = { 317 { /* ignore Broadcom 2033 without firmware */ 318 USB_VENDOR_BROADCOM, 319 USB_PRODUCT_BROADCOM_BCM2033NF, 320 -1, 321 -1, 322 -1, 323 UMATCH_NONE 324 }, 325 { /* Apple Bluetooth Host Controller MacbookPro 7,1 */ 326 USB_VENDOR_APPLE, 327 USB_PRODUCT_APPLE_BLUETOOTH_HOST_1, 328 -1, 329 -1, 330 -1, 331 UMATCH_VENDOR_PRODUCT 332 }, 333 { /* Apple Bluetooth Host Controller iMac 11,1 */ 334 USB_VENDOR_APPLE, 335 USB_PRODUCT_APPLE_BLUETOOTH_HOST_2, 336 -1, 337 -1, 338 -1, 339 UMATCH_VENDOR_PRODUCT 340 }, 341 { /* Apple Bluetooth Host Controller MacBookPro 8,2 */ 342 USB_VENDOR_APPLE, 343 USB_PRODUCT_APPLE_BLUETOOTH_HOST_3, 344 -1, 345 -1, 346 -1, 347 UMATCH_VENDOR_PRODUCT 348 }, 349 { /* Apple Bluetooth Host Controller MacBookAir 3,1 3,2*/ 350 USB_VENDOR_APPLE, 351 USB_PRODUCT_APPLE_BLUETOOTH_HOST_4, 352 -1, 353 -1, 354 -1, 355 UMATCH_VENDOR_PRODUCT 356 }, 357 { /* Apple Bluetooth Host Controller MacBookAir 4,1 */ 358 USB_VENDOR_APPLE, 359 USB_PRODUCT_APPLE_BLUETOOTH_HOST_5, 360 -1, 361 -1, 362 -1, 363 UMATCH_VENDOR_PRODUCT 364 }, 365 { /* Apple Bluetooth Host Controller MacMini 5,1 */ 366 USB_VENDOR_APPLE, 367 USB_PRODUCT_APPLE_BLUETOOTH_HOST_6, 368 -1, 369 -1, 370 -1, 371 UMATCH_VENDOR_PRODUCT 372 }, 373 { /* Apple Bluetooth Host Controller MacBookAir 6,1 */ 374 USB_VENDOR_APPLE, 375 USB_PRODUCT_APPLE_BLUETOOTH_HOST_7, 376 -1, 377 -1, 378 -1, 379 UMATCH_VENDOR_PRODUCT 380 }, 381 { /* Apple Bluetooth Host Controller MacBookPro 9,2 */ 382 USB_VENDOR_APPLE, 383 USB_PRODUCT_APPLE_BLUETOOTH_HOST_8, 384 -1, 385 -1, 386 -1, 387 UMATCH_VENDOR_PRODUCT 388 }, 389 { /* Broadcom chips with PatchRAM support */ 390 USB_VENDOR_BROADCOM, 391 -1, 392 UDCLASS_VENDOR, 393 UDSUBCLASS_RF, 394 UDPROTO_BLUETOOTH, 395 UMATCH_VENDOR_DEVCLASS_DEVPROTO 396 }, 397 { /* Broadcom based device with PatchRAM support */ 398 USB_VENDOR_FOXCONN, 399 -1, 400 UDCLASS_VENDOR, 401 UDSUBCLASS_RF, 402 UDPROTO_BLUETOOTH, 403 UMATCH_VENDOR_DEVCLASS_DEVPROTO 404 }, 405 { /* Broadcom based device with PatchRAM support */ 406 USB_VENDOR_LITEON, 407 -1, 408 UDCLASS_VENDOR, 409 UDSUBCLASS_RF, 410 UDPROTO_BLUETOOTH, 411 UMATCH_VENDOR_DEVCLASS_DEVPROTO 412 }, 413 { /* Broadcom based device with PatchRAM support */ 414 USB_VENDOR_BELKIN, 415 -1, 416 UDCLASS_VENDOR, 417 UDSUBCLASS_RF, 418 UDPROTO_BLUETOOTH, 419 UMATCH_VENDOR_DEVCLASS_DEVPROTO 420 }, 421 { /* Broadcom based device with PatchRAM support */ 422 USB_VENDOR_TOSHIBA, 423 -1, 424 UDCLASS_VENDOR, 425 UDSUBCLASS_RF, 426 UDPROTO_BLUETOOTH, 427 UMATCH_VENDOR_DEVCLASS_DEVPROTO 428 }, 429 { /* Broadcom based device with PatchRAM support */ 430 USB_VENDOR_ASUSTEK, 431 -1, 432 UDCLASS_VENDOR, 433 UDSUBCLASS_RF, 434 UDPROTO_BLUETOOTH, 435 UMATCH_VENDOR_DEVCLASS_DEVPROTO 436 }, 437 { /* Generic Bluetooth SIG compliant devices */ 438 -1, 439 -1, 440 UDCLASS_WIRELESS, 441 UDSUBCLASS_RF, 442 UDPROTO_BLUETOOTH, 443 UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO 444 }, 445 }; 446 447 static int 448 ubt_match(device_t parent, cfdata_t match, void *aux) 449 { 450 struct usb_attach_arg *uaa = aux; 451 size_t i; 452 453 DPRINTFN(50, "ubt_match\n"); 454 455 for (i = 0; i < __arraycount(ubt_dev); i++) { 456 if (ubt_dev[i].vendor != -1 457 && ubt_dev[i].vendor != (int)uaa->uaa_vendor) 458 continue; 459 if (ubt_dev[i].product != -1 460 && ubt_dev[i].product != (int)uaa->uaa_product) 461 continue; 462 if (ubt_dev[i].class != -1 463 && ubt_dev[i].class != uaa->uaa_class) 464 continue; 465 if (ubt_dev[i].subclass != -1 466 && ubt_dev[i].subclass != uaa->uaa_subclass) 467 continue; 468 if (ubt_dev[i].proto != -1 469 && ubt_dev[i].proto != uaa->uaa_proto) 470 continue; 471 472 return ubt_dev[i].match; 473 } 474 475 return UMATCH_NONE; 476 } 477 478 static void 479 ubt_attach(device_t parent, device_t self, void *aux) 480 { 481 struct ubt_softc *sc = device_private(self); 482 struct usb_attach_arg *uaa = aux; 483 usb_config_descriptor_t *cd; 484 usb_endpoint_descriptor_t *ed; 485 const struct sysctlnode *node; 486 char *devinfop; 487 int err; 488 uint8_t count, i; 489 490 DPRINTFN(50, "ubt_attach: sc=%p\n", sc); 491 492 sc->sc_dev = self; 493 sc->sc_udev = uaa->uaa_device; 494 495 MBUFQ_INIT(&sc->sc_cmd_queue); 496 MBUFQ_INIT(&sc->sc_aclwr_queue); 497 MBUFQ_INIT(&sc->sc_scowr_queue); 498 499 aprint_naive("\n"); 500 aprint_normal("\n"); 501 502 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 503 aprint_normal_dev(self, "%s\n", devinfop); 504 usbd_devinfo_free(devinfop); 505 506 /* 507 * Move the device into the configured state 508 */ 509 err = usbd_set_config_index(sc->sc_udev, 0, 1); 510 if (err) { 511 aprint_error_dev(self, 512 "failed to set configuration idx 0: %s\n", 513 usbd_errstr(err)); 514 515 return; 516 } 517 518 /* 519 * Interface 0 must have 3 endpoints 520 * 1) Interrupt endpoint to receive HCI events 521 * 2) Bulk IN endpoint to receive ACL data 522 * 3) Bulk OUT endpoint to send ACL data 523 */ 524 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface0); 525 if (err) { 526 aprint_error_dev(self, 527 "Could not get interface 0 handle %s (%d)\n", 528 usbd_errstr(err), err); 529 530 return; 531 } 532 533 sc->sc_evt_addr = -1; 534 sc->sc_aclrd_addr = -1; 535 sc->sc_aclwr_addr = -1; 536 537 count = 0; 538 (void)usbd_endpoint_count(sc->sc_iface0, &count); 539 540 for (i = 0 ; i < count ; i++) { 541 int dir, type; 542 543 ed = usbd_interface2endpoint_descriptor(sc->sc_iface0, i); 544 if (ed == NULL) { 545 aprint_error_dev(self, 546 "could not read endpoint descriptor %d\n", i); 547 548 return; 549 } 550 551 dir = UE_GET_DIR(ed->bEndpointAddress); 552 type = UE_GET_XFERTYPE(ed->bmAttributes); 553 554 if (dir == UE_DIR_IN && type == UE_INTERRUPT) 555 sc->sc_evt_addr = ed->bEndpointAddress; 556 else if (dir == UE_DIR_IN && type == UE_BULK) 557 sc->sc_aclrd_addr = ed->bEndpointAddress; 558 else if (dir == UE_DIR_OUT && type == UE_BULK) 559 sc->sc_aclwr_addr = ed->bEndpointAddress; 560 } 561 562 if (sc->sc_evt_addr == -1) { 563 aprint_error_dev(self, 564 "missing INTERRUPT endpoint on interface 0\n"); 565 566 return; 567 } 568 if (sc->sc_aclrd_addr == -1) { 569 aprint_error_dev(self, 570 "missing BULK IN endpoint on interface 0\n"); 571 572 return; 573 } 574 if (sc->sc_aclwr_addr == -1) { 575 aprint_error_dev(self, 576 "missing BULK OUT endpoint on interface 0\n"); 577 578 return; 579 } 580 581 /* 582 * Interface 1 must have 2 endpoints 583 * 1) Isochronous IN endpoint to receive SCO data 584 * 2) Isochronous OUT endpoint to send SCO data 585 * 586 * and will have several configurations, which can be selected 587 * via a sysctl variable. We select config 0 to start, which 588 * means that no SCO data will be available. 589 */ 590 err = usbd_device2interface_handle(sc->sc_udev, 1, &sc->sc_iface1); 591 if (err) { 592 aprint_error_dev(self, 593 "Could not get interface 1 handle %s (%d)\n", 594 usbd_errstr(err), err); 595 596 return; 597 } 598 599 cd = usbd_get_config_descriptor(sc->sc_udev); 600 if (cd == NULL) { 601 aprint_error_dev(self, "could not get config descriptor\n"); 602 603 return; 604 } 605 606 sc->sc_alt_config = usbd_get_no_alts(cd, 1); 607 608 /* set initial config */ 609 err = ubt_set_isoc_config(sc); 610 if (err) { 611 aprint_error_dev(self, "ISOC config failed\n"); 612 613 return; 614 } 615 616 /* Attach HCI */ 617 sc->sc_unit = hci_attach_pcb(&ubt_hci, sc->sc_dev, 0); 618 619 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 620 621 /* sysctl set-up for alternate configs */ 622 sysctl_createv(&sc->sc_log, 0, NULL, &node, 623 0, 624 CTLTYPE_NODE, device_xname(sc->sc_dev), 625 SYSCTL_DESCR("ubt driver information"), 626 NULL, 0, 627 NULL, 0, 628 CTL_HW, 629 CTL_CREATE, CTL_EOL); 630 631 if (node != NULL) { 632 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 633 CTLFLAG_READWRITE, 634 CTLTYPE_INT, "config", 635 SYSCTL_DESCR("configuration number"), 636 ubt_sysctl_config, 0, 637 (void *)sc, 0, 638 CTL_HW, node->sysctl_num, 639 CTL_CREATE, CTL_EOL); 640 641 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 642 CTLFLAG_READONLY, 643 CTLTYPE_INT, "alt_config", 644 SYSCTL_DESCR("number of alternate configurations"), 645 NULL, 0, 646 &sc->sc_alt_config, sizeof(sc->sc_alt_config), 647 CTL_HW, node->sysctl_num, 648 CTL_CREATE, CTL_EOL); 649 650 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 651 CTLFLAG_READONLY, 652 CTLTYPE_INT, "sco_rxsize", 653 SYSCTL_DESCR("max SCO receive size"), 654 NULL, 0, 655 &sc->sc_scord_size, sizeof(sc->sc_scord_size), 656 CTL_HW, node->sysctl_num, 657 CTL_CREATE, CTL_EOL); 658 659 sysctl_createv(&sc->sc_log, 0, NULL, NULL, 660 CTLFLAG_READONLY, 661 CTLTYPE_INT, "sco_txsize", 662 SYSCTL_DESCR("max SCO transmit size"), 663 NULL, 0, 664 &sc->sc_scowr_size, sizeof(sc->sc_scowr_size), 665 CTL_HW, node->sysctl_num, 666 CTL_CREATE, CTL_EOL); 667 } 668 669 sc->sc_ok = 1; 670 671 if (!pmf_device_register(self, NULL, NULL)) 672 aprint_error_dev(self, "couldn't establish power handler\n"); 673 674 return; 675 } 676 677 static int 678 ubt_detach(device_t self, int flags) 679 { 680 struct ubt_softc *sc = device_private(self); 681 int s; 682 683 DPRINTF("sc=%p flags=%d\n", sc, flags); 684 685 pmf_device_deregister(self); 686 687 sc->sc_dying = 1; 688 689 if (!sc->sc_ok) 690 return 0; 691 692 /* delete sysctl nodes */ 693 sysctl_teardown(&sc->sc_log); 694 695 /* Detach HCI interface */ 696 if (sc->sc_unit) { 697 hci_detach_pcb(sc->sc_unit); 698 sc->sc_unit = NULL; 699 } 700 701 /* 702 * Abort all pipes. Causes processes waiting for transfer to wake. 703 * 704 * Actually, hci_detach_pcb() above will call ubt_disable() which 705 * may call ubt_abortdealloc(), but lets be sure since doing it 706 * twice wont cause an error. 707 */ 708 ubt_abortdealloc(sc); 709 710 /* wait for all processes to finish */ 711 s = splusb(); 712 if (sc->sc_refcnt-- > 0) 713 usb_detach_waitold(sc->sc_dev); 714 715 splx(s); 716 717 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 718 719 DPRINTFN(1, "driver detached\n"); 720 721 return 0; 722 } 723 724 static int 725 ubt_activate(device_t self, enum devact act) 726 { 727 struct ubt_softc *sc = device_private(self); 728 729 DPRINTFN(1, "sc=%p, act=%d\n", sc, act); 730 731 switch (act) { 732 case DVACT_DEACTIVATE: 733 sc->sc_dying = 1; 734 return 0; 735 default: 736 return EOPNOTSUPP; 737 } 738 } 739 740 /* set ISOC configuration */ 741 static int 742 ubt_set_isoc_config(struct ubt_softc *sc) 743 { 744 usb_endpoint_descriptor_t *ed; 745 int rd_addr, wr_addr, rd_size, wr_size; 746 uint8_t count, i; 747 int err; 748 749 err = usbd_set_interface(sc->sc_iface1, sc->sc_config); 750 if (err != USBD_NORMAL_COMPLETION) { 751 aprint_error_dev(sc->sc_dev, 752 "Could not set config %d on ISOC interface. %s (%d)\n", 753 sc->sc_config, usbd_errstr(err), err); 754 755 return err == USBD_IN_USE ? EBUSY : EIO; 756 } 757 758 /* 759 * We wont get past the above if there are any pipes open, so no 760 * need to worry about buf/xfer/pipe deallocation. If we get an 761 * error after this, the frame quantities will be 0 and no SCO 762 * data will be possible. 763 */ 764 765 sc->sc_scord_size = rd_size = 0; 766 sc->sc_scord_addr = rd_addr = -1; 767 768 sc->sc_scowr_size = wr_size = 0; 769 sc->sc_scowr_addr = wr_addr = -1; 770 771 count = 0; 772 (void)usbd_endpoint_count(sc->sc_iface1, &count); 773 774 for (i = 0 ; i < count ; i++) { 775 ed = usbd_interface2endpoint_descriptor(sc->sc_iface1, i); 776 if (ed == NULL) { 777 aprint_error_dev(sc->sc_dev, 778 "could not read endpoint descriptor %d\n", i); 779 780 return EIO; 781 } 782 783 DPRINTFN(5, "%s: endpoint type %02x (%02x) addr %02x (%s)\n", 784 device_xname(sc->sc_dev), 785 UE_GET_XFERTYPE(ed->bmAttributes), 786 UE_GET_ISO_TYPE(ed->bmAttributes), 787 ed->bEndpointAddress, 788 UE_GET_DIR(ed->bEndpointAddress) ? "in" : "out"); 789 790 if (UE_GET_XFERTYPE(ed->bmAttributes) != UE_ISOCHRONOUS) 791 continue; 792 793 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) { 794 rd_addr = ed->bEndpointAddress; 795 rd_size = UGETW(ed->wMaxPacketSize); 796 } else { 797 wr_addr = ed->bEndpointAddress; 798 wr_size = UGETW(ed->wMaxPacketSize); 799 } 800 } 801 802 if (rd_addr == -1) { 803 aprint_error_dev(sc->sc_dev, 804 "missing ISOC IN endpoint on interface config %d\n", 805 sc->sc_config); 806 807 return ENOENT; 808 } 809 if (wr_addr == -1) { 810 aprint_error_dev(sc->sc_dev, 811 "missing ISOC OUT endpoint on interface config %d\n", 812 sc->sc_config); 813 814 return ENOENT; 815 } 816 817 if (rd_size > MLEN) { 818 aprint_error_dev(sc->sc_dev, "rd_size=%d exceeds MLEN\n", 819 rd_size); 820 821 return EOVERFLOW; 822 } 823 824 if (wr_size > MLEN) { 825 aprint_error_dev(sc->sc_dev, "wr_size=%d exceeds MLEN\n", 826 wr_size); 827 828 return EOVERFLOW; 829 } 830 831 sc->sc_scord_size = rd_size; 832 sc->sc_scord_addr = rd_addr; 833 834 sc->sc_scowr_size = wr_size; 835 sc->sc_scowr_addr = wr_addr; 836 837 return 0; 838 } 839 840 /* sysctl helper to set alternate configurations */ 841 static int 842 ubt_sysctl_config(SYSCTLFN_ARGS) 843 { 844 struct sysctlnode node; 845 struct ubt_softc *sc; 846 int t, error; 847 848 node = *rnode; 849 sc = node.sysctl_data; 850 851 t = sc->sc_config; 852 node.sysctl_data = &t; 853 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 854 if (error || newp == NULL) 855 return error; 856 857 if (t < 0 || t >= sc->sc_alt_config) 858 return EINVAL; 859 860 /* This may not change when the unit is enabled */ 861 if (sc->sc_enabled) 862 return EBUSY; 863 864 KERNEL_LOCK(1, curlwp); 865 sc->sc_config = t; 866 error = ubt_set_isoc_config(sc); 867 KERNEL_UNLOCK_ONE(curlwp); 868 return error; 869 } 870 871 static void 872 ubt_abortdealloc(struct ubt_softc *sc) 873 { 874 int i; 875 876 DPRINTFN(1, "sc=%p\n", sc); 877 878 /* Abort all pipes */ 879 usbd_abort_default_pipe(sc->sc_udev); 880 881 if (sc->sc_evt_pipe != NULL) { 882 usbd_abort_pipe(sc->sc_evt_pipe); 883 } 884 885 if (sc->sc_aclrd_pipe != NULL) { 886 usbd_abort_pipe(sc->sc_aclrd_pipe); 887 } 888 889 if (sc->sc_aclwr_pipe != NULL) { 890 usbd_abort_pipe(sc->sc_aclwr_pipe); 891 } 892 893 if (sc->sc_scord_pipe != NULL) { 894 usbd_abort_pipe(sc->sc_scord_pipe); 895 } 896 897 if (sc->sc_scowr_pipe != NULL) { 898 usbd_abort_pipe(sc->sc_scowr_pipe); 899 } 900 901 /* Free event buffer */ 902 if (sc->sc_evt_buf != NULL) { 903 kmem_free(sc->sc_evt_buf, UBT_BUFSIZ_EVENT); 904 sc->sc_evt_buf = NULL; 905 } 906 907 /* Free all xfers and xfer buffers (implicit) */ 908 if (sc->sc_cmd_xfer != NULL) { 909 usbd_destroy_xfer(sc->sc_cmd_xfer); 910 sc->sc_cmd_xfer = NULL; 911 sc->sc_cmd_buf = NULL; 912 } 913 914 if (sc->sc_aclrd_xfer != NULL) { 915 usbd_destroy_xfer(sc->sc_aclrd_xfer); 916 sc->sc_aclrd_xfer = NULL; 917 sc->sc_aclrd_buf = NULL; 918 } 919 920 if (sc->sc_aclwr_xfer != NULL) { 921 usbd_destroy_xfer(sc->sc_aclwr_xfer); 922 sc->sc_aclwr_xfer = NULL; 923 sc->sc_aclwr_buf = NULL; 924 } 925 926 for (i = 0 ; i < UBT_NXFERS ; i++) { 927 if (sc->sc_scord[i].xfer != NULL) { 928 usbd_destroy_xfer(sc->sc_scord[i].xfer); 929 sc->sc_scord[i].xfer = NULL; 930 sc->sc_scord[i].buf = NULL; 931 } 932 933 if (sc->sc_scowr[i].xfer != NULL) { 934 usbd_destroy_xfer(sc->sc_scowr[i].xfer); 935 sc->sc_scowr[i].xfer = NULL; 936 sc->sc_scowr[i].buf = NULL; 937 } 938 } 939 940 if (sc->sc_evt_pipe != NULL) { 941 usbd_close_pipe(sc->sc_evt_pipe); 942 sc->sc_evt_pipe = NULL; 943 } 944 945 if (sc->sc_aclrd_pipe != NULL) { 946 usbd_close_pipe(sc->sc_aclrd_pipe); 947 sc->sc_aclrd_pipe = NULL; 948 } 949 950 if (sc->sc_aclwr_pipe != NULL) { 951 usbd_close_pipe(sc->sc_aclwr_pipe); 952 sc->sc_aclwr_pipe = NULL; 953 } 954 955 if (sc->sc_scord_pipe != NULL) { 956 usbd_close_pipe(sc->sc_scord_pipe); 957 sc->sc_scord_pipe = NULL; 958 } 959 960 if (sc->sc_scowr_pipe != NULL) { 961 usbd_close_pipe(sc->sc_scowr_pipe); 962 sc->sc_scowr_pipe = NULL; 963 } 964 965 /* Free partial SCO packets */ 966 m_freem(sc->sc_scord_mbuf); 967 sc->sc_scord_mbuf = NULL; 968 969 m_freem(sc->sc_scowr_mbuf); 970 sc->sc_scowr_mbuf = NULL; 971 972 /* Empty mbuf queues */ 973 MBUFQ_DRAIN(&sc->sc_cmd_queue); 974 MBUFQ_DRAIN(&sc->sc_aclwr_queue); 975 MBUFQ_DRAIN(&sc->sc_scowr_queue); 976 } 977 978 /******************************************************************************* 979 * 980 * Bluetooth Unit/USB callbacks 981 * 982 */ 983 static int 984 ubt_enable(device_t self) 985 { 986 struct ubt_softc *sc = device_private(self); 987 usbd_status err; 988 int s, i, error; 989 990 DPRINTFN(1, "sc=%p\n", sc); 991 992 if (sc->sc_enabled) 993 return 0; 994 995 s = splusb(); 996 997 /* Events */ 998 sc->sc_evt_buf = kmem_alloc(UBT_BUFSIZ_EVENT, KM_SLEEP); 999 err = usbd_open_pipe_intr(sc->sc_iface0, 1000 sc->sc_evt_addr, 1001 USBD_SHORT_XFER_OK, 1002 &sc->sc_evt_pipe, 1003 sc, 1004 sc->sc_evt_buf, 1005 UBT_BUFSIZ_EVENT, 1006 ubt_recv_event, 1007 USBD_DEFAULT_INTERVAL); 1008 if (err != USBD_NORMAL_COMPLETION) { 1009 error = EIO; 1010 goto bad; 1011 } 1012 1013 /* Commands */ 1014 struct usbd_pipe *pipe0 = usbd_get_pipe0(sc->sc_udev); 1015 error = usbd_create_xfer(pipe0, UBT_BUFSIZ_CMD, USBD_FORCE_SHORT_XFER, 1016 0, &sc->sc_cmd_xfer); 1017 if (error) 1018 goto bad; 1019 sc->sc_cmd_buf = usbd_get_buffer(sc->sc_cmd_xfer); 1020 sc->sc_cmd_busy = 0; 1021 1022 /* ACL read */ 1023 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclrd_addr, 1024 USBD_EXCLUSIVE_USE, &sc->sc_aclrd_pipe); 1025 if (err != USBD_NORMAL_COMPLETION) { 1026 error = EIO; 1027 goto bad; 1028 } 1029 error = usbd_create_xfer(sc->sc_aclrd_pipe, UBT_BUFSIZ_ACL, 1030 0, 0, &sc->sc_aclrd_xfer); 1031 if (error) 1032 goto bad; 1033 sc->sc_aclrd_buf = usbd_get_buffer(sc->sc_aclrd_xfer); 1034 sc->sc_aclrd_busy = 0; 1035 ubt_recv_acl_start(sc); 1036 1037 /* ACL write */ 1038 err = usbd_open_pipe(sc->sc_iface0, sc->sc_aclwr_addr, 1039 USBD_EXCLUSIVE_USE, &sc->sc_aclwr_pipe); 1040 if (err != USBD_NORMAL_COMPLETION) { 1041 error = EIO; 1042 goto bad; 1043 } 1044 error = usbd_create_xfer(sc->sc_aclwr_pipe, UBT_BUFSIZ_ACL, 1045 USBD_FORCE_SHORT_XFER, 0, &sc->sc_aclwr_xfer); 1046 if (error) 1047 goto bad; 1048 sc->sc_aclwr_buf = usbd_get_buffer(sc->sc_aclwr_xfer); 1049 sc->sc_aclwr_busy = 0; 1050 1051 /* SCO read */ 1052 if (sc->sc_scord_size > 0) { 1053 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scord_addr, 1054 USBD_EXCLUSIVE_USE, &sc->sc_scord_pipe); 1055 if (err != USBD_NORMAL_COMPLETION) { 1056 error = EIO; 1057 goto bad; 1058 } 1059 1060 for (i = 0 ; i < UBT_NXFERS ; i++) { 1061 error = usbd_create_xfer(sc->sc_scord_pipe, 1062 sc->sc_scord_size * UBT_NFRAMES, 1063 0, UBT_NFRAMES, 1064 &sc->sc_scord[i].xfer); 1065 if (error) 1066 goto bad; 1067 1068 sc->sc_scord[i].buf = 1069 usbd_get_buffer(sc->sc_scord[i].xfer); 1070 sc->sc_scord[i].softc = sc; 1071 sc->sc_scord[i].busy = 0; 1072 ubt_recv_sco_start1(sc, &sc->sc_scord[i]); 1073 } 1074 } 1075 1076 /* SCO write */ 1077 if (sc->sc_scowr_size > 0) { 1078 err = usbd_open_pipe(sc->sc_iface1, sc->sc_scowr_addr, 1079 USBD_EXCLUSIVE_USE, &sc->sc_scowr_pipe); 1080 if (err != USBD_NORMAL_COMPLETION) { 1081 error = EIO; 1082 goto bad; 1083 } 1084 1085 for (i = 0 ; i < UBT_NXFERS ; i++) { 1086 error = usbd_create_xfer(sc->sc_scowr_pipe, 1087 sc->sc_scowr_size * UBT_NFRAMES, 1088 USBD_FORCE_SHORT_XFER, UBT_NFRAMES, 1089 &sc->sc_scowr[i].xfer); 1090 if (error) 1091 goto bad; 1092 sc->sc_scowr[i].buf = 1093 usbd_get_buffer(sc->sc_scowr[i].xfer); 1094 sc->sc_scowr[i].softc = sc; 1095 sc->sc_scowr[i].busy = 0; 1096 } 1097 1098 sc->sc_scowr_busy = 0; 1099 } 1100 1101 sc->sc_enabled = 1; 1102 splx(s); 1103 return 0; 1104 1105 bad: 1106 ubt_abortdealloc(sc); 1107 splx(s); 1108 return error; 1109 } 1110 1111 static void 1112 ubt_disable(device_t self) 1113 { 1114 struct ubt_softc *sc = device_private(self); 1115 int s; 1116 1117 DPRINTFN(1, "sc=%p\n", sc); 1118 1119 if (sc->sc_enabled == 0) 1120 return; 1121 1122 s = splusb(); 1123 ubt_abortdealloc(sc); 1124 1125 sc->sc_enabled = 0; 1126 splx(s); 1127 } 1128 1129 static void 1130 ubt_xmit_cmd(device_t self, struct mbuf *m) 1131 { 1132 struct ubt_softc *sc = device_private(self); 1133 int s; 1134 1135 KASSERT(sc->sc_enabled); 1136 1137 s = splusb(); 1138 MBUFQ_ENQUEUE(&sc->sc_cmd_queue, m); 1139 1140 if (sc->sc_cmd_busy == 0) 1141 ubt_xmit_cmd_start(sc); 1142 1143 splx(s); 1144 } 1145 1146 static void 1147 ubt_xmit_cmd_start(struct ubt_softc *sc) 1148 { 1149 usb_device_request_t req; 1150 usbd_status status; 1151 struct mbuf *m; 1152 int len; 1153 1154 if (sc->sc_dying) 1155 return; 1156 1157 if (MBUFQ_FIRST(&sc->sc_cmd_queue) == NULL) 1158 return; 1159 1160 MBUFQ_DEQUEUE(&sc->sc_cmd_queue, m); 1161 KASSERT(m != NULL); 1162 1163 DPRINTFN(15, "%s: xmit CMD packet (%d bytes)\n", 1164 device_xname(sc->sc_dev), m->m_pkthdr.len); 1165 1166 sc->sc_refcnt++; 1167 sc->sc_cmd_busy = 1; 1168 1169 len = m->m_pkthdr.len - 1; 1170 m_copydata(m, 1, len, sc->sc_cmd_buf); 1171 m_freem(m); 1172 1173 memset(&req, 0, sizeof(req)); 1174 req.bmRequestType = UT_WRITE_CLASS_DEVICE; 1175 USETW(req.wLength, len); 1176 1177 usbd_setup_default_xfer(sc->sc_cmd_xfer, 1178 sc->sc_udev, 1179 sc, 1180 UBT_CMD_TIMEOUT, 1181 &req, 1182 sc->sc_cmd_buf, 1183 len, 1184 USBD_FORCE_SHORT_XFER, 1185 ubt_xmit_cmd_complete); 1186 1187 status = usbd_transfer(sc->sc_cmd_xfer); 1188 1189 KASSERT(status != USBD_NORMAL_COMPLETION); 1190 1191 if (status != USBD_IN_PROGRESS) { 1192 DPRINTF("usbd_transfer status=%s (%d)\n", 1193 usbd_errstr(status), status); 1194 1195 sc->sc_refcnt--; 1196 sc->sc_cmd_busy = 0; 1197 } 1198 } 1199 1200 static void 1201 ubt_xmit_cmd_complete(struct usbd_xfer *xfer, 1202 void * h, usbd_status status) 1203 { 1204 struct ubt_softc *sc = h; 1205 uint32_t count; 1206 1207 DPRINTFN(15, "%s: CMD complete status=%s (%d)\n", 1208 device_xname(sc->sc_dev), usbd_errstr(status), status); 1209 1210 sc->sc_cmd_busy = 0; 1211 1212 if (--sc->sc_refcnt < 0) { 1213 DPRINTF("sc_refcnt=%d\n", sc->sc_refcnt); 1214 usb_detach_wakeupold(sc->sc_dev); 1215 return; 1216 } 1217 1218 if (sc->sc_dying) { 1219 DPRINTF("sc_dying\n"); 1220 return; 1221 } 1222 1223 if (status != USBD_NORMAL_COMPLETION) { 1224 DPRINTF("status=%s (%d)\n", 1225 usbd_errstr(status), status); 1226 1227 sc->sc_stats.err_tx++; 1228 return; 1229 } 1230 1231 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1232 sc->sc_stats.cmd_tx++; 1233 sc->sc_stats.byte_tx += count; 1234 1235 ubt_xmit_cmd_start(sc); 1236 } 1237 1238 static void 1239 ubt_xmit_acl(device_t self, struct mbuf *m) 1240 { 1241 struct ubt_softc *sc = device_private(self); 1242 int s; 1243 1244 KASSERT(sc->sc_enabled); 1245 1246 s = splusb(); 1247 MBUFQ_ENQUEUE(&sc->sc_aclwr_queue, m); 1248 1249 if (sc->sc_aclwr_busy == 0) 1250 ubt_xmit_acl_start(sc); 1251 1252 splx(s); 1253 } 1254 1255 static void 1256 ubt_xmit_acl_start(struct ubt_softc *sc) 1257 { 1258 struct mbuf *m; 1259 usbd_status status; 1260 int len; 1261 1262 if (sc->sc_dying) 1263 return; 1264 1265 if (MBUFQ_FIRST(&sc->sc_aclwr_queue) == NULL) 1266 return; 1267 1268 sc->sc_refcnt++; 1269 sc->sc_aclwr_busy = 1; 1270 1271 MBUFQ_DEQUEUE(&sc->sc_aclwr_queue, m); 1272 KASSERT(m != NULL); 1273 1274 DPRINTFN(15, "%s: xmit ACL packet (%d bytes)\n", 1275 device_xname(sc->sc_dev), m->m_pkthdr.len); 1276 1277 len = m->m_pkthdr.len - 1; 1278 if (len > UBT_BUFSIZ_ACL) { 1279 DPRINTF("%s: truncating ACL packet (%d => %d)!\n", 1280 device_xname(sc->sc_dev), len, UBT_BUFSIZ_ACL); 1281 1282 len = UBT_BUFSIZ_ACL; 1283 } 1284 1285 m_copydata(m, 1, len, sc->sc_aclwr_buf); 1286 m_freem(m); 1287 1288 sc->sc_stats.acl_tx++; 1289 sc->sc_stats.byte_tx += len; 1290 1291 usbd_setup_xfer(sc->sc_aclwr_xfer, 1292 sc, 1293 sc->sc_aclwr_buf, 1294 len, 1295 USBD_FORCE_SHORT_XFER, 1296 UBT_ACL_TIMEOUT, 1297 ubt_xmit_acl_complete); 1298 1299 status = usbd_transfer(sc->sc_aclwr_xfer); 1300 1301 KASSERT(status != USBD_NORMAL_COMPLETION); 1302 1303 if (status != USBD_IN_PROGRESS) { 1304 DPRINTF("usbd_transfer status=%s (%d)\n", 1305 usbd_errstr(status), status); 1306 1307 sc->sc_refcnt--; 1308 sc->sc_aclwr_busy = 0; 1309 } 1310 } 1311 1312 static void 1313 ubt_xmit_acl_complete(struct usbd_xfer *xfer, 1314 void * h, usbd_status status) 1315 { 1316 struct ubt_softc *sc = h; 1317 1318 DPRINTFN(15, "%s: ACL complete status=%s (%d)\n", 1319 device_xname(sc->sc_dev), usbd_errstr(status), status); 1320 1321 sc->sc_aclwr_busy = 0; 1322 1323 if (--sc->sc_refcnt < 0) { 1324 usb_detach_wakeupold(sc->sc_dev); 1325 return; 1326 } 1327 1328 if (sc->sc_dying) 1329 return; 1330 1331 if (status != USBD_NORMAL_COMPLETION) { 1332 DPRINTF("status=%s (%d)\n", 1333 usbd_errstr(status), status); 1334 1335 sc->sc_stats.err_tx++; 1336 1337 if (status == USBD_STALLED) 1338 usbd_clear_endpoint_stall_async(sc->sc_aclwr_pipe); 1339 else 1340 return; 1341 } 1342 1343 ubt_xmit_acl_start(sc); 1344 } 1345 1346 static void 1347 ubt_xmit_sco(device_t self, struct mbuf *m) 1348 { 1349 struct ubt_softc *sc = device_private(self); 1350 int s; 1351 1352 KASSERT(sc->sc_enabled); 1353 1354 s = splusb(); 1355 MBUFQ_ENQUEUE(&sc->sc_scowr_queue, m); 1356 1357 if (sc->sc_scowr_busy == 0) 1358 ubt_xmit_sco_start(sc); 1359 1360 splx(s); 1361 } 1362 1363 static void 1364 ubt_xmit_sco_start(struct ubt_softc *sc) 1365 { 1366 int i; 1367 1368 if (sc->sc_dying || sc->sc_scowr_size == 0) 1369 return; 1370 1371 for (i = 0 ; i < UBT_NXFERS ; i++) { 1372 if (sc->sc_scowr[i].busy) 1373 continue; 1374 1375 ubt_xmit_sco_start1(sc, &sc->sc_scowr[i]); 1376 } 1377 } 1378 1379 static void 1380 ubt_xmit_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1381 { 1382 struct mbuf *m; 1383 uint8_t *buf; 1384 int num, len, size, space; 1385 1386 space = sc->sc_scowr_size * UBT_NFRAMES; 1387 buf = isoc->buf; 1388 len = 0; 1389 1390 /* 1391 * Fill the request buffer with data from the queue, 1392 * keeping any leftover packet on our private hook. 1393 * 1394 * Complete packets are passed back up to the stack 1395 * for disposal, since we can't rely on the controller 1396 * to tell us when it has finished with them. 1397 */ 1398 1399 m = sc->sc_scowr_mbuf; 1400 while (space > 0) { 1401 if (m == NULL) { 1402 MBUFQ_DEQUEUE(&sc->sc_scowr_queue, m); 1403 if (m == NULL) 1404 break; 1405 1406 m_adj(m, 1); /* packet type */ 1407 } 1408 1409 if (m->m_pkthdr.len > 0) { 1410 size = MIN(m->m_pkthdr.len, space); 1411 1412 m_copydata(m, 0, size, buf); 1413 m_adj(m, size); 1414 1415 buf += size; 1416 len += size; 1417 space -= size; 1418 } 1419 1420 if (m->m_pkthdr.len == 0) { 1421 sc->sc_stats.sco_tx++; 1422 if (!hci_complete_sco(sc->sc_unit, m)) 1423 sc->sc_stats.err_tx++; 1424 1425 m = NULL; 1426 } 1427 } 1428 sc->sc_scowr_mbuf = m; 1429 1430 DPRINTFN(15, "isoc=%p, len=%d, space=%d\n", isoc, len, space); 1431 1432 if (len == 0) /* nothing to send */ 1433 return; 1434 1435 sc->sc_refcnt++; 1436 sc->sc_scowr_busy = 1; 1437 sc->sc_stats.byte_tx += len; 1438 isoc->busy = 1; 1439 1440 /* 1441 * calculate number of isoc frames and sizes 1442 */ 1443 1444 for (num = 0 ; len > 0 ; num++) { 1445 size = MIN(sc->sc_scowr_size, len); 1446 1447 isoc->size[num] = size; 1448 len -= size; 1449 } 1450 1451 usbd_setup_isoc_xfer(isoc->xfer, 1452 isoc, 1453 isoc->size, 1454 num, 1455 USBD_FORCE_SHORT_XFER, 1456 ubt_xmit_sco_complete); 1457 1458 usbd_transfer(isoc->xfer); 1459 } 1460 1461 static void 1462 ubt_xmit_sco_complete(struct usbd_xfer *xfer, 1463 void * h, usbd_status status) 1464 { 1465 struct ubt_isoc_xfer *isoc = h; 1466 struct ubt_softc *sc; 1467 int i; 1468 1469 KASSERT(xfer == isoc->xfer); 1470 sc = isoc->softc; 1471 1472 DPRINTFN(15, "isoc=%p, status=%s (%d)\n", 1473 isoc, usbd_errstr(status), status); 1474 1475 isoc->busy = 0; 1476 1477 for (i = 0 ; ; i++) { 1478 if (i == UBT_NXFERS) { 1479 sc->sc_scowr_busy = 0; 1480 break; 1481 } 1482 1483 if (sc->sc_scowr[i].busy) 1484 break; 1485 } 1486 1487 if (--sc->sc_refcnt < 0) { 1488 usb_detach_wakeupold(sc->sc_dev); 1489 return; 1490 } 1491 1492 if (sc->sc_dying) 1493 return; 1494 1495 if (status != USBD_NORMAL_COMPLETION) { 1496 DPRINTF("status=%s (%d)\n", 1497 usbd_errstr(status), status); 1498 1499 sc->sc_stats.err_tx++; 1500 1501 if (status == USBD_STALLED) 1502 usbd_clear_endpoint_stall_async(sc->sc_scowr_pipe); 1503 else 1504 return; 1505 } 1506 1507 ubt_xmit_sco_start(sc); 1508 } 1509 1510 /* 1511 * load incoming data into an mbuf with 1512 * leading type byte 1513 */ 1514 static struct mbuf * 1515 ubt_mbufload(uint8_t *buf, int count, uint8_t type) 1516 { 1517 struct mbuf *m; 1518 1519 MGETHDR(m, M_DONTWAIT, MT_DATA); 1520 if (m == NULL) 1521 return NULL; 1522 1523 *mtod(m, uint8_t *) = type; 1524 m->m_pkthdr.len = m->m_len = MHLEN; 1525 m_copyback(m, 1, count, buf); // (extends if necessary) 1526 if (m->m_pkthdr.len != MAX(MHLEN, count + 1)) { 1527 m_freem(m); 1528 return NULL; 1529 } 1530 1531 m->m_pkthdr.len = count + 1; 1532 m->m_len = MIN(MHLEN, m->m_pkthdr.len); 1533 1534 return m; 1535 } 1536 1537 static void 1538 ubt_recv_event(struct usbd_xfer *xfer, void * h, usbd_status status) 1539 { 1540 struct ubt_softc *sc = h; 1541 struct mbuf *m; 1542 uint32_t count; 1543 void *buf; 1544 1545 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1546 sc, usbd_errstr(status), status); 1547 1548 if (status != USBD_NORMAL_COMPLETION || sc->sc_dying) 1549 return; 1550 1551 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1552 1553 if (count < sizeof(hci_event_hdr_t) - 1) { 1554 DPRINTF("dumped undersized event (count = %d)\n", count); 1555 sc->sc_stats.err_rx++; 1556 return; 1557 } 1558 1559 sc->sc_stats.evt_rx++; 1560 sc->sc_stats.byte_rx += count; 1561 1562 m = ubt_mbufload(buf, count, HCI_EVENT_PKT); 1563 if (m == NULL || !hci_input_event(sc->sc_unit, m)) 1564 sc->sc_stats.err_rx++; 1565 } 1566 1567 static void 1568 ubt_recv_acl_start(struct ubt_softc *sc) 1569 { 1570 usbd_status status; 1571 1572 DPRINTFN(15, "sc=%p\n", sc); 1573 1574 if (sc->sc_aclrd_busy || sc->sc_dying) { 1575 DPRINTF("sc_aclrd_busy=%d, sc_dying=%d\n", 1576 sc->sc_aclrd_busy, 1577 sc->sc_dying); 1578 1579 return; 1580 } 1581 1582 sc->sc_refcnt++; 1583 sc->sc_aclrd_busy = 1; 1584 1585 usbd_setup_xfer(sc->sc_aclrd_xfer, 1586 sc, 1587 sc->sc_aclrd_buf, 1588 UBT_BUFSIZ_ACL, 1589 USBD_SHORT_XFER_OK, 1590 USBD_NO_TIMEOUT, 1591 ubt_recv_acl_complete); 1592 1593 status = usbd_transfer(sc->sc_aclrd_xfer); 1594 1595 KASSERT(status != USBD_NORMAL_COMPLETION); 1596 1597 if (status != USBD_IN_PROGRESS) { 1598 DPRINTF("usbd_transfer status=%s (%d)\n", 1599 usbd_errstr(status), status); 1600 1601 sc->sc_refcnt--; 1602 sc->sc_aclrd_busy = 0; 1603 } 1604 } 1605 1606 static void 1607 ubt_recv_acl_complete(struct usbd_xfer *xfer, 1608 void * h, usbd_status status) 1609 { 1610 struct ubt_softc *sc = h; 1611 struct mbuf *m; 1612 uint32_t count; 1613 void *buf; 1614 1615 DPRINTFN(15, "sc=%p status=%s (%d)\n", 1616 sc, usbd_errstr(status), status); 1617 1618 sc->sc_aclrd_busy = 0; 1619 1620 if (--sc->sc_refcnt < 0) { 1621 DPRINTF("refcnt = %d\n", sc->sc_refcnt); 1622 usb_detach_wakeupold(sc->sc_dev); 1623 return; 1624 } 1625 1626 if (sc->sc_dying) { 1627 DPRINTF("sc_dying\n"); 1628 return; 1629 } 1630 1631 if (status != USBD_NORMAL_COMPLETION) { 1632 DPRINTF("status=%s (%d)\n", 1633 usbd_errstr(status), status); 1634 1635 sc->sc_stats.err_rx++; 1636 1637 if (status == USBD_STALLED) 1638 usbd_clear_endpoint_stall_async(sc->sc_aclrd_pipe); 1639 else 1640 return; 1641 } else { 1642 usbd_get_xfer_status(xfer, NULL, &buf, &count, NULL); 1643 1644 if (count < sizeof(hci_acldata_hdr_t) - 1) { 1645 DPRINTF("dumped undersized packet (%d)\n", count); 1646 sc->sc_stats.err_rx++; 1647 } else { 1648 sc->sc_stats.acl_rx++; 1649 sc->sc_stats.byte_rx += count; 1650 1651 m = ubt_mbufload(buf, count, HCI_ACL_DATA_PKT); 1652 if (m == NULL || !hci_input_acl(sc->sc_unit, m)) 1653 sc->sc_stats.err_rx++; 1654 } 1655 } 1656 1657 /* and restart */ 1658 ubt_recv_acl_start(sc); 1659 } 1660 1661 static void 1662 ubt_recv_sco_start1(struct ubt_softc *sc, struct ubt_isoc_xfer *isoc) 1663 { 1664 int i; 1665 1666 DPRINTFN(15, "sc=%p, isoc=%p\n", sc, isoc); 1667 1668 if (isoc->busy || sc->sc_dying || sc->sc_scord_size == 0) { 1669 DPRINTF("%s%s%s\n", 1670 isoc->busy ? " busy" : "", 1671 sc->sc_dying ? " dying" : "", 1672 sc->sc_scord_size == 0 ? " size=0" : ""); 1673 1674 return; 1675 } 1676 1677 sc->sc_refcnt++; 1678 isoc->busy = 1; 1679 1680 for (i = 0 ; i < UBT_NFRAMES ; i++) 1681 isoc->size[i] = sc->sc_scord_size; 1682 1683 usbd_setup_isoc_xfer(isoc->xfer, 1684 isoc, 1685 isoc->size, 1686 UBT_NFRAMES, 1687 USBD_SHORT_XFER_OK, 1688 ubt_recv_sco_complete); 1689 1690 usbd_transfer(isoc->xfer); 1691 } 1692 1693 static void 1694 ubt_recv_sco_complete(struct usbd_xfer *xfer, 1695 void * h, usbd_status status) 1696 { 1697 struct ubt_isoc_xfer *isoc = h; 1698 struct ubt_softc *sc; 1699 struct mbuf *m; 1700 uint32_t count; 1701 uint8_t *ptr, *frame; 1702 int i, size, got, want; 1703 1704 KASSERT(isoc != NULL); 1705 KASSERT(isoc->xfer == xfer); 1706 1707 sc = isoc->softc; 1708 isoc->busy = 0; 1709 1710 if (--sc->sc_refcnt < 0) { 1711 DPRINTF("refcnt=%d\n", sc->sc_refcnt); 1712 usb_detach_wakeupold(sc->sc_dev); 1713 return; 1714 } 1715 1716 if (sc->sc_dying) { 1717 DPRINTF("sc_dying\n"); 1718 return; 1719 } 1720 1721 if (status != USBD_NORMAL_COMPLETION) { 1722 DPRINTF("status=%s (%d)\n", 1723 usbd_errstr(status), status); 1724 1725 sc->sc_stats.err_rx++; 1726 1727 if (status == USBD_STALLED) { 1728 usbd_clear_endpoint_stall_async(sc->sc_scord_pipe); 1729 goto restart; 1730 } 1731 1732 return; 1733 } 1734 1735 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1736 if (count == 0) 1737 goto restart; 1738 1739 DPRINTFN(15, "sc=%p, isoc=%p, count=%u\n", 1740 sc, isoc, count); 1741 1742 sc->sc_stats.byte_rx += count; 1743 1744 /* 1745 * Extract SCO packets from ISOC frames. The way we have it, 1746 * no SCO packet can be bigger than MHLEN. This is unlikely 1747 * to actually happen, but if we ran out of mbufs and lost 1748 * sync then we may get spurious data that makes it seem that 1749 * way, so we discard data that wont fit. This doesnt really 1750 * help with the lost sync situation alas. 1751 */ 1752 1753 m = sc->sc_scord_mbuf; 1754 if (m != NULL) { 1755 sc->sc_scord_mbuf = NULL; 1756 ptr = mtod(m, uint8_t *) + m->m_pkthdr.len; 1757 got = m->m_pkthdr.len; 1758 want = sizeof(hci_scodata_hdr_t); 1759 if (got >= want) 1760 want += mtod(m, hci_scodata_hdr_t *)->length ; 1761 } else { 1762 ptr = NULL; 1763 got = 0; 1764 want = 0; 1765 } 1766 1767 for (i = 0 ; i < UBT_NFRAMES ; i++) { 1768 frame = isoc->buf + (i * sc->sc_scord_size); 1769 1770 while (isoc->size[i] > 0) { 1771 size = isoc->size[i]; 1772 1773 if (m == NULL) { 1774 MGETHDR(m, M_DONTWAIT, MT_DATA); 1775 if (m == NULL) { 1776 aprint_error_dev(sc->sc_dev, 1777 "out of memory (xfer halted)\n"); 1778 1779 sc->sc_stats.err_rx++; 1780 return; /* lost sync */ 1781 } 1782 1783 ptr = mtod(m, uint8_t *); 1784 *ptr++ = HCI_SCO_DATA_PKT; 1785 got = 1; 1786 want = sizeof(hci_scodata_hdr_t); 1787 } 1788 1789 if (got + size > want) 1790 size = want - got; 1791 1792 memcpy(ptr, frame, size); 1793 1794 ptr += size; 1795 got += size; 1796 frame += size; 1797 1798 if (got == want) { 1799 /* 1800 * If we only got a header, add the packet 1801 * length to our want count. Send complete 1802 * packets up to protocol stack. 1803 */ 1804 if (want == sizeof(hci_scodata_hdr_t)) { 1805 uint32_t len = 1806 mtod(m, hci_scodata_hdr_t *)->length; 1807 want += len; 1808 if (len == 0 || want > MHLEN) { 1809 aprint_error_dev(sc->sc_dev, 1810 "packet too large %u " 1811 "(lost sync)\n", len); 1812 sc->sc_stats.err_rx++; 1813 return; 1814 } 1815 } 1816 1817 if (got == want) { 1818 m->m_pkthdr.len = m->m_len = got; 1819 sc->sc_stats.sco_rx++; 1820 if (!hci_input_sco(sc->sc_unit, m)) 1821 sc->sc_stats.err_rx++; 1822 1823 m = NULL; 1824 } 1825 } 1826 1827 isoc->size[i] -= size; 1828 } 1829 } 1830 1831 if (m != NULL) { 1832 m->m_pkthdr.len = m->m_len = got; 1833 sc->sc_scord_mbuf = m; 1834 } 1835 1836 restart: /* and restart */ 1837 ubt_recv_sco_start1(sc, isoc); 1838 } 1839 1840 void 1841 ubt_stats(device_t self, struct bt_stats *dest, int flush) 1842 { 1843 struct ubt_softc *sc = device_private(self); 1844 int s; 1845 1846 s = splusb(); 1847 memcpy(dest, &sc->sc_stats, sizeof(struct bt_stats)); 1848 1849 if (flush) 1850 memset(&sc->sc_stats, 0, sizeof(struct bt_stats)); 1851 1852 splx(s); 1853 } 1854
Indexes created Mon Sep 22 13:09:51 GMT 2025