6 * Copyright (c) 2001-2009 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * $Id: ng_ubt.c,v 1.16 2003/10/10 19:15:06 max Exp $
35 * NOTE: ng_ubt2 driver has a split personality. On one side it is
36 * a USB device driver and on the other it is a Netgraph node. This
37 * driver will *NOT* create traditional /dev/ enties, only Netgraph
40 * NOTE ON LOCKS USED: ng_ubt2 drives uses 2 locks (mutexes)
42 * 1) sc_if_mtx - lock for device's interface #0 and #1. This lock is used
43 * by USB for any USB request going over device's interface #0 and #1,
44 * i.e. interrupt, control, bulk and isoc. transfers.
46 * 2) sc_ng_mtx - this lock is used to protect shared (between USB, Netgraph
47 * and Taskqueue) data, such as outgoing mbuf queues, task flags and hook
48 * pointer. This lock *SHOULD NOT* be grabbed for a long time. In fact,
49 * think of it as a spin lock.
51 * NOTE ON LOCKING STRATEGY: ng_ubt2 driver operates in 3 different contexts.
53 * 1) USB context. This is where all the USB related stuff happens. All
54 * callbacks run in this context. All callbacks are called (by USB) with
55 * appropriate interface lock held. It is (generally) allowed to grab
56 * any additional locks.
58 * 2) Netgraph context. This is where all the Netgraph related stuff happens.
59 * Since we mark node as WRITER, the Netgraph node will be "locked" (from
60 * Netgraph point of view). Any variable that is only modified from the
61 * Netgraph context does not require any additonal locking. It is generally
62 * *NOT* allowed to grab *ANY* additional locks. Whatever you do, *DO NOT*
63 * grab any lock in the Netgraph context that could cause de-scheduling of
64 * the Netgraph thread for significant amount of time. In fact, the only
65 * lock that is allowed in the Netgraph context is the sc_ng_mtx lock.
66 * Also make sure that any code that is called from the Netgraph context
67 * follows the rule above.
69 * 3) Taskqueue context. This is where ubt_task runs. Since we are generally
70 * NOT allowed to grab any lock that could cause de-scheduling in the
71 * Netgraph context, and, USB requires us to grab interface lock before
72 * doing things with transfers, it is safer to transition from the Netgraph
73 * context to the Taskqueue context before we can call into USB subsystem.
75 * So, to put everything together, the rules are as follows.
76 * It is OK to call from the USB context or the Taskqueue context into
77 * the Netgraph context (i.e. call NG_SEND_xxx functions). In other words
78 * it is allowed to call into the Netgraph context with locks held.
79 * Is it *NOT* OK to call from the Netgraph context into the USB context,
80 * because USB requires us to grab interface locks, and, it is safer to
81 * avoid it. So, to make things safer we set task flags to indicate which
82 * actions we want to perform and schedule ubt_task which would run in the
84 * Is is OK to call from the Taskqueue context into the USB context,
85 * and, ubt_task does just that (i.e. grabs appropriate interface locks
86 * before calling into USB).
87 * Access to the outgoing queues, task flags and hook pointer is
88 * controlled by the sc_ng_mtx lock. It is an unavoidable evil. Again,
89 * sc_ng_mtx should really be a spin lock (and it is very likely to an
90 * equivalent of spin lock due to adaptive nature of FreeBSD mutexes).
91 * All USB callbacks accept softc pointer as a private data. USB ensures
92 * that this pointer is valid.
95 #include <sys/stdint.h>
96 #include <sys/stddef.h>
97 #include <sys/param.h>
98 #include <sys/queue.h>
99 #include <sys/types.h>
100 #include <sys/systm.h>
101 #include <sys/kernel.h>
103 #include <sys/module.h>
104 #include <sys/lock.h>
105 #include <sys/mutex.h>
106 #include <sys/condvar.h>
107 #include <sys/sysctl.h>
109 #include <sys/unistd.h>
110 #include <sys/callout.h>
111 #include <sys/malloc.h>
112 #include <sys/priv.h>
115 #include <dev/usb/usb.h>
116 #include <dev/usb/usbdi.h>
117 #include <dev/usb/usbdi_util.h>
119 #define USB_DEBUG_VAR usb_debug
120 #include <dev/usb/usb_debug.h>
121 #include <dev/usb/usb_busdma.h>
123 #include <sys/mbuf.h>
124 #include <sys/taskqueue.h>
126 #include <netgraph/ng_message.h>
127 #include <netgraph/netgraph.h>
128 #include <netgraph/ng_parse.h>
129 #include <netgraph/bluetooth/include/ng_bluetooth.h>
130 #include <netgraph/bluetooth/include/ng_hci.h>
131 #include <netgraph/bluetooth/include/ng_ubt.h>
132 #include <netgraph/bluetooth/drivers/ubt/ng_ubt_var.h>
134 static int ubt_modevent(module_t, int, void *);
135 static device_probe_t ubt_probe;
136 static device_attach_t ubt_attach;
137 static device_detach_t ubt_detach;
139 static void ubt_task_schedule(ubt_softc_p, int);
140 static task_fn_t ubt_task;
142 #define ubt_xfer_start(sc, i) usbd_transfer_start((sc)->sc_xfer[(i)])
144 /* Netgraph methods */
145 static ng_constructor_t ng_ubt_constructor;
146 static ng_shutdown_t ng_ubt_shutdown;
147 static ng_newhook_t ng_ubt_newhook;
148 static ng_connect_t ng_ubt_connect;
149 static ng_disconnect_t ng_ubt_disconnect;
150 static ng_rcvmsg_t ng_ubt_rcvmsg;
151 static ng_rcvdata_t ng_ubt_rcvdata;
154 static const struct ng_parse_struct_field ng_ubt_node_qlen_type_fields[] =
156 { "queue", &ng_parse_int32_type, },
157 { "qlen", &ng_parse_int32_type, },
160 static const struct ng_parse_type ng_ubt_node_qlen_type =
162 &ng_parse_struct_type,
163 &ng_ubt_node_qlen_type_fields
167 static const struct ng_parse_struct_field ng_ubt_node_stat_type_fields[] =
169 { "pckts_recv", &ng_parse_uint32_type, },
170 { "bytes_recv", &ng_parse_uint32_type, },
171 { "pckts_sent", &ng_parse_uint32_type, },
172 { "bytes_sent", &ng_parse_uint32_type, },
173 { "oerrors", &ng_parse_uint32_type, },
174 { "ierrors", &ng_parse_uint32_type, },
177 static const struct ng_parse_type ng_ubt_node_stat_type =
179 &ng_parse_struct_type,
180 &ng_ubt_node_stat_type_fields
183 /* Netgraph node command list */
184 static const struct ng_cmdlist ng_ubt_cmdlist[] =
188 NGM_UBT_NODE_SET_DEBUG,
190 &ng_parse_uint16_type,
195 NGM_UBT_NODE_GET_DEBUG,
198 &ng_parse_uint16_type
202 NGM_UBT_NODE_SET_QLEN,
204 &ng_ubt_node_qlen_type,
209 NGM_UBT_NODE_GET_QLEN,
211 &ng_ubt_node_qlen_type,
212 &ng_ubt_node_qlen_type
216 NGM_UBT_NODE_GET_STAT,
219 &ng_ubt_node_stat_type
223 NGM_UBT_NODE_RESET_STAT,
231 /* Netgraph node type */
232 static struct ng_type typestruct =
234 .version = NG_ABI_VERSION,
235 .name = NG_UBT_NODE_TYPE,
236 .constructor = ng_ubt_constructor,
237 .rcvmsg = ng_ubt_rcvmsg,
238 .shutdown = ng_ubt_shutdown,
239 .newhook = ng_ubt_newhook,
240 .connect = ng_ubt_connect,
241 .rcvdata = ng_ubt_rcvdata,
242 .disconnect = ng_ubt_disconnect,
243 .cmdlist = ng_ubt_cmdlist
246 /****************************************************************************
247 ****************************************************************************
249 ****************************************************************************
250 ****************************************************************************/
253 static usb_callback_t ubt_ctrl_write_callback;
254 static usb_callback_t ubt_intr_read_callback;
255 static usb_callback_t ubt_bulk_read_callback;
256 static usb_callback_t ubt_bulk_write_callback;
257 static usb_callback_t ubt_isoc_read_callback;
258 static usb_callback_t ubt_isoc_write_callback;
260 static int ubt_fwd_mbuf_up(ubt_softc_p, struct mbuf **);
261 static int ubt_isoc_read_one_frame(struct usb_xfer *, int);
266 * The following desribes usb transfers that could be submitted on USB device.
268 * Interface 0 on the USB device must present the following endpoints
269 * 1) Interrupt endpoint to receive HCI events
270 * 2) Bulk IN endpoint to receive ACL data
271 * 3) Bulk OUT endpoint to send ACL data
273 * Interface 1 on the USB device must present the following endpoints
274 * 1) Isochronous IN endpoint to receive SCO data
275 * 2) Isochronous OUT endpoint to send SCO data
278 static const struct usb_config ubt_config[UBT_N_TRANSFER] =
284 /* Outgoing bulk transfer - ACL packets */
285 [UBT_IF_0_BULK_DT_WR] = {
287 .endpoint = UE_ADDR_ANY,
288 .direction = UE_DIR_OUT,
290 .bufsize = UBT_BULK_WRITE_BUFFER_SIZE,
291 .flags = { .pipe_bof = 1, .force_short_xfer = 1, },
292 .callback = &ubt_bulk_write_callback,
294 /* Incoming bulk transfer - ACL packets */
295 [UBT_IF_0_BULK_DT_RD] = {
297 .endpoint = UE_ADDR_ANY,
298 .direction = UE_DIR_IN,
300 .bufsize = UBT_BULK_READ_BUFFER_SIZE,
301 .flags = { .pipe_bof = 1, .short_xfer_ok = 1, },
302 .callback = &ubt_bulk_read_callback,
304 /* Incoming interrupt transfer - HCI events */
305 [UBT_IF_0_INTR_DT_RD] = {
306 .type = UE_INTERRUPT,
307 .endpoint = UE_ADDR_ANY,
308 .direction = UE_DIR_IN,
310 .flags = { .pipe_bof = 1, .short_xfer_ok = 1, },
311 .bufsize = UBT_INTR_BUFFER_SIZE,
312 .callback = &ubt_intr_read_callback,
314 /* Outgoing control transfer - HCI commands */
315 [UBT_IF_0_CTRL_DT_WR] = {
317 .endpoint = 0x00, /* control pipe */
318 .direction = UE_DIR_ANY,
320 .bufsize = UBT_CTRL_BUFFER_SIZE,
321 .callback = &ubt_ctrl_write_callback,
322 .timeout = 5000, /* 5 seconds */
329 /* Incoming isochronous transfer #1 - SCO packets */
330 [UBT_IF_1_ISOC_DT_RD1] = {
331 .type = UE_ISOCHRONOUS,
332 .endpoint = UE_ADDR_ANY,
333 .direction = UE_DIR_IN,
335 .bufsize = 0, /* use "wMaxPacketSize * frames" */
336 .frames = UBT_ISOC_NFRAMES,
337 .flags = { .short_xfer_ok = 1, },
338 .callback = &ubt_isoc_read_callback,
340 /* Incoming isochronous transfer #2 - SCO packets */
341 [UBT_IF_1_ISOC_DT_RD2] = {
342 .type = UE_ISOCHRONOUS,
343 .endpoint = UE_ADDR_ANY,
344 .direction = UE_DIR_IN,
346 .bufsize = 0, /* use "wMaxPacketSize * frames" */
347 .frames = UBT_ISOC_NFRAMES,
348 .flags = { .short_xfer_ok = 1, },
349 .callback = &ubt_isoc_read_callback,
351 /* Outgoing isochronous transfer #1 - SCO packets */
352 [UBT_IF_1_ISOC_DT_WR1] = {
353 .type = UE_ISOCHRONOUS,
354 .endpoint = UE_ADDR_ANY,
355 .direction = UE_DIR_OUT,
357 .bufsize = 0, /* use "wMaxPacketSize * frames" */
358 .frames = UBT_ISOC_NFRAMES,
359 .flags = { .short_xfer_ok = 1, },
360 .callback = &ubt_isoc_write_callback,
362 /* Outgoing isochronous transfer #2 - SCO packets */
363 [UBT_IF_1_ISOC_DT_WR2] = {
364 .type = UE_ISOCHRONOUS,
365 .endpoint = UE_ADDR_ANY,
366 .direction = UE_DIR_OUT,
368 .bufsize = 0, /* use "wMaxPacketSize * frames" */
369 .frames = UBT_ISOC_NFRAMES,
370 .flags = { .short_xfer_ok = 1, },
371 .callback = &ubt_isoc_write_callback,
376 * If for some reason device should not be attached then put
377 * VendorID/ProductID pair into the list below. The format is
380 * { USB_VPI(VENDOR_ID, PRODUCT_ID, 0) },
382 * where VENDOR_ID and PRODUCT_ID are hex numbers.
385 static const STRUCT_USB_HOST_ID ubt_ignore_devs[] =
387 /* AVM USB Bluetooth-Adapter BlueFritz! v1.0 */
388 { USB_VPI(USB_VENDOR_AVM, 0x2200, 0) },
391 /* List of supported bluetooth devices */
392 static const STRUCT_USB_HOST_ID ubt_devs[] =
394 /* Generic Bluetooth class devices */
395 { USB_IFACE_CLASS(UDCLASS_WIRELESS),
396 USB_IFACE_SUBCLASS(UDSUBCLASS_RF),
397 USB_IFACE_PROTOCOL(UDPROTO_BLUETOOTH) },
399 /* AVM USB Bluetooth-Adapter BlueFritz! v2.0 */
400 { USB_VPI(USB_VENDOR_AVM, 0x3800, 0) },
402 /* Broadcom USB dongles, mostly BCM20702 and BCM20702A0 */
403 { USB_VENDOR(USB_VENDOR_BROADCOM),
404 USB_IFACE_CLASS(UICLASS_VENDOR),
405 USB_IFACE_SUBCLASS(UDSUBCLASS_RF),
406 USB_IFACE_PROTOCOL(UDPROTO_BLUETOOTH) },
408 /* Apple-specific (Broadcom) devices */
409 { USB_VENDOR(USB_VENDOR_APPLE),
410 USB_IFACE_CLASS(UICLASS_VENDOR),
411 USB_IFACE_SUBCLASS(UDSUBCLASS_RF),
412 USB_IFACE_PROTOCOL(UDPROTO_BLUETOOTH) },
414 /* Foxconn - Hon Hai */
415 { USB_VENDOR(USB_VENDOR_FOXCONN),
416 USB_IFACE_CLASS(UICLASS_VENDOR),
417 USB_IFACE_SUBCLASS(UDSUBCLASS_RF),
418 USB_IFACE_PROTOCOL(UDPROTO_BLUETOOTH) },
420 /* MediaTek MT76x0E */
421 { USB_VPI(USB_VENDOR_MEDIATEK, 0x763f, 0) },
423 /* Broadcom SoftSailing reporting vendor specific */
424 { USB_VPI(USB_VENDOR_BROADCOM, 0x21e1, 0) },
426 /* Apple MacBookPro 7,1 */
427 { USB_VPI(USB_VENDOR_APPLE, 0x8213, 0) },
430 { USB_VPI(USB_VENDOR_APPLE, 0x8215, 0) },
432 /* Apple MacBookPro6,2 */
433 { USB_VPI(USB_VENDOR_APPLE, 0x8218, 0) },
435 /* Apple MacBookAir3,1, MacBookAir3,2 */
436 { USB_VPI(USB_VENDOR_APPLE, 0x821b, 0) },
438 /* Apple MacBookAir4,1 */
439 { USB_VPI(USB_VENDOR_APPLE, 0x821f, 0) },
442 { USB_VPI(USB_VENDOR_APPLE, 0x828f, 0) },
444 /* Apple MacBookPro8,2 */
445 { USB_VPI(USB_VENDOR_APPLE, 0x821a, 0) },
447 /* Apple MacMini5,1 */
448 { USB_VPI(USB_VENDOR_APPLE, 0x8281, 0) },
450 /* Bluetooth Ultraport Module from IBM */
451 { USB_VPI(USB_VENDOR_TDK, 0x030a, 0) },
453 /* ALPS Modules with non-standard ID */
454 { USB_VPI(USB_VENDOR_ALPS, 0x3001, 0) },
455 { USB_VPI(USB_VENDOR_ALPS, 0x3002, 0) },
457 { USB_VPI(USB_VENDOR_ERICSSON2, 0x1002, 0) },
459 /* Canyon CN-BTU1 with HID interfaces */
460 { USB_VPI(USB_VENDOR_CANYON, 0x0000, 0) },
462 /* Broadcom BCM20702A0 */
463 { USB_VPI(USB_VENDOR_ASUS, 0x17b5, 0) },
464 { USB_VPI(USB_VENDOR_ASUS, 0x17cb, 0) },
465 { USB_VPI(USB_VENDOR_LITEON, 0x2003, 0) },
466 { USB_VPI(USB_VENDOR_FOXCONN, 0xe042, 0) },
467 { USB_VPI(USB_VENDOR_DELL, 0x8197, 0) },
471 * Probe for a USB Bluetooth device.
476 ubt_probe(device_t dev)
478 struct usb_attach_arg *uaa = device_get_ivars(dev);
481 if (uaa->usb_mode != USB_MODE_HOST)
484 if (uaa->info.bIfaceIndex != 0)
487 if (usbd_lookup_id_by_uaa(ubt_ignore_devs,
488 sizeof(ubt_ignore_devs), uaa) == 0)
491 error = usbd_lookup_id_by_uaa(ubt_devs, sizeof(ubt_devs), uaa);
493 return (BUS_PROBE_GENERIC);
503 ubt_attach(device_t dev)
505 struct usb_attach_arg *uaa = device_get_ivars(dev);
506 struct ubt_softc *sc = device_get_softc(dev);
507 struct usb_endpoint_descriptor *ed;
508 struct usb_interface_descriptor *id;
509 uint16_t wMaxPacketSize;
510 uint8_t alt_index, i, j;
511 uint8_t iface_index[2] = { 0, 1 };
513 device_set_usb_desc(dev);
516 sc->sc_debug = NG_UBT_WARN_LEVEL;
519 * Create Netgraph node
522 if (ng_make_node_common(&typestruct, &sc->sc_node) != 0) {
523 UBT_ALERT(sc, "could not create Netgraph node\n");
527 /* Name Netgraph node */
528 if (ng_name_node(sc->sc_node, device_get_nameunit(dev)) != 0) {
529 UBT_ALERT(sc, "could not name Netgraph node\n");
530 NG_NODE_UNREF(sc->sc_node);
533 NG_NODE_SET_PRIVATE(sc->sc_node, sc);
534 NG_NODE_FORCE_WRITER(sc->sc_node);
537 * Initialize device softc structure
540 /* initialize locks */
541 mtx_init(&sc->sc_ng_mtx, "ubt ng", NULL, MTX_DEF);
542 mtx_init(&sc->sc_if_mtx, "ubt if", NULL, MTX_DEF | MTX_RECURSE);
544 /* initialize packet queues */
545 NG_BT_MBUFQ_INIT(&sc->sc_cmdq, UBT_DEFAULT_QLEN);
546 NG_BT_MBUFQ_INIT(&sc->sc_aclq, UBT_DEFAULT_QLEN);
547 NG_BT_MBUFQ_INIT(&sc->sc_scoq, UBT_DEFAULT_QLEN);
549 /* initialize glue task */
550 TASK_INIT(&sc->sc_task, 0, ubt_task, sc);
553 * Configure Bluetooth USB device. Discover all required USB
554 * interfaces and endpoints.
556 * USB device must present two interfaces:
557 * 1) Interface 0 that has 3 endpoints
558 * 1) Interrupt endpoint to receive HCI events
559 * 2) Bulk IN endpoint to receive ACL data
560 * 3) Bulk OUT endpoint to send ACL data
562 * 2) Interface 1 then has 2 endpoints
563 * 1) Isochronous IN endpoint to receive SCO data
564 * 2) Isochronous OUT endpoint to send SCO data
566 * Interface 1 (with isochronous endpoints) has several alternate
567 * configurations with different packet size.
571 * For interface #1 search alternate settings, and find
572 * the descriptor with the largest wMaxPacketSize
582 * Search through all the descriptors looking for the largest
585 while ((ed = (struct usb_endpoint_descriptor *)usb_desc_foreach(
586 usbd_get_config_descriptor(uaa->device),
587 (struct usb_descriptor *)ed))) {
589 if ((ed->bDescriptorType == UDESC_INTERFACE) &&
590 (ed->bLength >= sizeof(*id))) {
591 id = (struct usb_interface_descriptor *)ed;
592 i = id->bInterfaceNumber;
593 j = id->bAlternateSetting;
596 if ((ed->bDescriptorType == UDESC_ENDPOINT) &&
597 (ed->bLength >= sizeof(*ed)) &&
601 temp = UGETW(ed->wMaxPacketSize);
602 if (temp > wMaxPacketSize) {
603 wMaxPacketSize = temp;
609 /* Set alt configuration on interface #1 only if we found it */
610 if (wMaxPacketSize > 0 &&
611 usbd_set_alt_interface_index(uaa->device, 1, alt_index)) {
612 UBT_ALERT(sc, "could not set alternate setting %d " \
613 "for interface 1!\n", alt_index);
617 /* Setup transfers for both interfaces */
618 if (usbd_transfer_setup(uaa->device, iface_index, sc->sc_xfer,
619 ubt_config, UBT_N_TRANSFER, sc, &sc->sc_if_mtx)) {
620 UBT_ALERT(sc, "could not allocate transfers\n");
624 /* Claim all interfaces on the device */
625 for (i = 1; usbd_get_iface(uaa->device, i) != NULL; i ++)
626 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
628 return (0); /* success */
642 ubt_detach(device_t dev)
644 struct ubt_softc *sc = device_get_softc(dev);
645 node_p node = sc->sc_node;
647 /* Destroy Netgraph node */
650 NG_NODE_REALLY_DIE(node);
651 ng_rmnode_self(node);
654 /* Make sure ubt_task in gone */
655 taskqueue_drain(taskqueue_swi, &sc->sc_task);
657 /* Free USB transfers, if any */
658 usbd_transfer_unsetup(sc->sc_xfer, UBT_N_TRANSFER);
662 NG_BT_MBUFQ_DESTROY(&sc->sc_cmdq);
663 NG_BT_MBUFQ_DESTROY(&sc->sc_aclq);
664 NG_BT_MBUFQ_DESTROY(&sc->sc_scoq);
667 mtx_destroy(&sc->sc_if_mtx);
668 mtx_destroy(&sc->sc_ng_mtx);
674 * Called when outgoing control request (HCI command) has completed, i.e.
675 * HCI command was sent to the device.
680 ubt_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
682 struct ubt_softc *sc = usbd_xfer_softc(xfer);
683 struct usb_device_request req;
685 struct usb_page_cache *pc;
688 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
690 switch (USB_GET_STATE(xfer)) {
691 case USB_ST_TRANSFERRED:
692 UBT_INFO(sc, "sent %d bytes to control pipe\n", actlen);
693 UBT_STAT_BYTES_SENT(sc, actlen);
694 UBT_STAT_PCKTS_SENT(sc);
699 /* Get next command mbuf, if any */
701 NG_BT_MBUFQ_DEQUEUE(&sc->sc_cmdq, m);
705 UBT_INFO(sc, "HCI command queue is empty\n");
706 break; /* transfer complete */
709 /* Initialize a USB control request and then schedule it */
710 bzero(&req, sizeof(req));
711 req.bmRequestType = UBT_HCI_REQUEST;
712 USETW(req.wLength, m->m_pkthdr.len);
714 UBT_INFO(sc, "Sending control request, " \
715 "bmRequestType=0x%02x, wLength=%d\n",
716 req.bmRequestType, UGETW(req.wLength));
718 pc = usbd_xfer_get_frame(xfer, 0);
719 usbd_copy_in(pc, 0, &req, sizeof(req));
720 pc = usbd_xfer_get_frame(xfer, 1);
721 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
723 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
724 usbd_xfer_set_frame_len(xfer, 1, m->m_pkthdr.len);
725 usbd_xfer_set_frames(xfer, 2);
729 usbd_transfer_submit(xfer);
733 if (error != USB_ERR_CANCELLED) {
734 UBT_WARN(sc, "control transfer failed: %s\n",
741 /* transfer cancelled */
744 } /* ubt_ctrl_write_callback */
747 * Called when incoming interrupt transfer (HCI event) has completed, i.e.
748 * HCI event was received from the device.
753 ubt_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
755 struct ubt_softc *sc = usbd_xfer_softc(xfer);
757 ng_hci_event_pkt_t *hdr;
758 struct usb_page_cache *pc;
761 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
765 switch (USB_GET_STATE(xfer)) {
766 case USB_ST_TRANSFERRED:
767 /* Allocate a new mbuf */
768 MGETHDR(m, M_DONTWAIT, MT_DATA);
774 MCLGET(m, M_DONTWAIT);
775 if (!(m->m_flags & M_EXT)) {
780 /* Add HCI packet type */
781 *mtod(m, uint8_t *)= NG_HCI_EVENT_PKT;
782 m->m_pkthdr.len = m->m_len = 1;
784 if (actlen > MCLBYTES - 1)
785 actlen = MCLBYTES - 1;
787 pc = usbd_xfer_get_frame(xfer, 0);
788 usbd_copy_out(pc, 0, mtod(m, uint8_t *) + 1, actlen);
789 m->m_pkthdr.len += actlen;
792 UBT_INFO(sc, "got %d bytes from interrupt pipe\n",
795 /* Validate packet and send it up the stack */
796 if (m->m_pkthdr.len < (int)sizeof(*hdr)) {
797 UBT_INFO(sc, "HCI event packet is too short\n");
803 hdr = mtod(m, ng_hci_event_pkt_t *);
804 if (hdr->length != (m->m_pkthdr.len - sizeof(*hdr))) {
805 UBT_ERR(sc, "Invalid HCI event packet size, " \
806 "length=%d, pktlen=%d\n",
807 hdr->length, m->m_pkthdr.len);
813 UBT_INFO(sc, "got complete HCI event frame, pktlen=%d, " \
814 "length=%d\n", m->m_pkthdr.len, hdr->length);
816 UBT_STAT_PCKTS_RECV(sc);
817 UBT_STAT_BYTES_RECV(sc, m->m_pkthdr.len);
819 ubt_fwd_mbuf_up(sc, &m);
820 /* m == NULL at this point */
825 NG_FREE_M(m); /* checks for m != NULL */
827 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
828 usbd_transfer_submit(xfer);
832 if (error != USB_ERR_CANCELLED) {
833 UBT_WARN(sc, "interrupt transfer failed: %s\n",
836 /* Try to clear stall first */
837 usbd_xfer_set_stall(xfer);
840 /* transfer cancelled */
843 } /* ubt_intr_read_callback */
846 * Called when incoming bulk transfer (ACL packet) has completed, i.e.
847 * ACL packet was received from the device.
852 ubt_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
854 struct ubt_softc *sc = usbd_xfer_softc(xfer);
856 ng_hci_acldata_pkt_t *hdr;
857 struct usb_page_cache *pc;
861 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
865 switch (USB_GET_STATE(xfer)) {
866 case USB_ST_TRANSFERRED:
867 /* Allocate new mbuf */
868 MGETHDR(m, M_DONTWAIT, MT_DATA);
874 MCLGET(m, M_DONTWAIT);
875 if (!(m->m_flags & M_EXT)) {
880 /* Add HCI packet type */
881 *mtod(m, uint8_t *)= NG_HCI_ACL_DATA_PKT;
882 m->m_pkthdr.len = m->m_len = 1;
884 if (actlen > MCLBYTES - 1)
885 actlen = MCLBYTES - 1;
887 pc = usbd_xfer_get_frame(xfer, 0);
888 usbd_copy_out(pc, 0, mtod(m, uint8_t *) + 1, actlen);
889 m->m_pkthdr.len += actlen;
892 UBT_INFO(sc, "got %d bytes from bulk-in pipe\n",
895 /* Validate packet and send it up the stack */
896 if (m->m_pkthdr.len < (int)sizeof(*hdr)) {
897 UBT_INFO(sc, "HCI ACL packet is too short\n");
903 hdr = mtod(m, ng_hci_acldata_pkt_t *);
904 len = le16toh(hdr->length);
905 if (len != (int)(m->m_pkthdr.len - sizeof(*hdr))) {
906 UBT_ERR(sc, "Invalid ACL packet size, length=%d, " \
907 "pktlen=%d\n", len, m->m_pkthdr.len);
913 UBT_INFO(sc, "got complete ACL data packet, pktlen=%d, " \
914 "length=%d\n", m->m_pkthdr.len, len);
916 UBT_STAT_PCKTS_RECV(sc);
917 UBT_STAT_BYTES_RECV(sc, m->m_pkthdr.len);
919 ubt_fwd_mbuf_up(sc, &m);
920 /* m == NULL at this point */
925 NG_FREE_M(m); /* checks for m != NULL */
927 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
928 usbd_transfer_submit(xfer);
932 if (error != USB_ERR_CANCELLED) {
933 UBT_WARN(sc, "bulk-in transfer failed: %s\n",
936 /* Try to clear stall first */
937 usbd_xfer_set_stall(xfer);
940 /* transfer cancelled */
943 } /* ubt_bulk_read_callback */
946 * Called when outgoing bulk transfer (ACL packet) has completed, i.e.
947 * ACL packet was sent to the device.
952 ubt_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
954 struct ubt_softc *sc = usbd_xfer_softc(xfer);
956 struct usb_page_cache *pc;
959 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
961 switch (USB_GET_STATE(xfer)) {
962 case USB_ST_TRANSFERRED:
963 UBT_INFO(sc, "sent %d bytes to bulk-out pipe\n", actlen);
964 UBT_STAT_BYTES_SENT(sc, actlen);
965 UBT_STAT_PCKTS_SENT(sc);
970 /* Get next mbuf, if any */
972 NG_BT_MBUFQ_DEQUEUE(&sc->sc_aclq, m);
976 UBT_INFO(sc, "ACL data queue is empty\n");
977 break; /* transfer completed */
981 * Copy ACL data frame back to a linear USB transfer buffer
982 * and schedule transfer
985 pc = usbd_xfer_get_frame(xfer, 0);
986 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
987 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
989 UBT_INFO(sc, "bulk-out transfer has been started, len=%d\n",
994 usbd_transfer_submit(xfer);
998 if (error != USB_ERR_CANCELLED) {
999 UBT_WARN(sc, "bulk-out transfer failed: %s\n",
1000 usbd_errstr(error));
1002 UBT_STAT_OERROR(sc);
1004 /* try to clear stall first */
1005 usbd_xfer_set_stall(xfer);
1008 /* transfer cancelled */
1011 } /* ubt_bulk_write_callback */
1014 * Called when incoming isoc transfer (SCO packet) has completed, i.e.
1015 * SCO packet was received from the device.
1020 ubt_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error)
1022 struct ubt_softc *sc = usbd_xfer_softc(xfer);
1024 int actlen, nframes;
1026 usbd_xfer_status(xfer, &actlen, NULL, NULL, &nframes);
1028 switch (USB_GET_STATE(xfer)) {
1029 case USB_ST_TRANSFERRED:
1030 for (n = 0; n < nframes; n ++)
1031 if (ubt_isoc_read_one_frame(xfer, n) < 0)
1037 for (n = 0; n < nframes; n ++)
1038 usbd_xfer_set_frame_len(xfer, n,
1039 usbd_xfer_max_framelen(xfer));
1041 usbd_transfer_submit(xfer);
1044 default: /* Error */
1045 if (error != USB_ERR_CANCELLED) {
1046 UBT_STAT_IERROR(sc);
1050 /* transfer cancelled */
1053 } /* ubt_isoc_read_callback */
1056 * Helper function. Called from ubt_isoc_read_callback() to read
1057 * SCO data from one frame.
1062 ubt_isoc_read_one_frame(struct usb_xfer *xfer, int frame_no)
1064 struct ubt_softc *sc = usbd_xfer_softc(xfer);
1065 struct usb_page_cache *pc;
1067 int len, want, got, total;
1069 /* Get existing SCO reassembly buffer */
1070 pc = usbd_xfer_get_frame(xfer, 0);
1071 m = sc->sc_isoc_in_buffer;
1072 total = usbd_xfer_frame_len(xfer, frame_no);
1074 /* While we have data in the frame */
1077 /* Start new reassembly buffer */
1078 MGETHDR(m, M_DONTWAIT, MT_DATA);
1080 UBT_STAT_IERROR(sc);
1081 return (-1); /* XXX out of sync! */
1084 MCLGET(m, M_DONTWAIT);
1085 if (!(m->m_flags & M_EXT)) {
1086 UBT_STAT_IERROR(sc);
1088 return (-1); /* XXX out of sync! */
1091 /* Expect SCO header */
1092 *mtod(m, uint8_t *) = NG_HCI_SCO_DATA_PKT;
1093 m->m_pkthdr.len = m->m_len = got = 1;
1094 want = sizeof(ng_hci_scodata_pkt_t);
1097 * Check if we have SCO header and if so
1098 * adjust amount of data we want
1100 got = m->m_pkthdr.len;
1101 want = sizeof(ng_hci_scodata_pkt_t);
1104 want += mtod(m, ng_hci_scodata_pkt_t *)->length;
1107 /* Append frame data to the SCO reassembly buffer */
1109 if (got + len > want)
1112 usbd_copy_out(pc, frame_no * usbd_xfer_max_framelen(xfer),
1113 mtod(m, uint8_t *) + m->m_pkthdr.len, len);
1115 m->m_pkthdr.len += len;
1119 /* Check if we got everything we wanted, if not - continue */
1123 /* If we got here then we got complete SCO frame */
1124 UBT_INFO(sc, "got complete SCO data frame, pktlen=%d, " \
1125 "length=%d\n", m->m_pkthdr.len,
1126 mtod(m, ng_hci_scodata_pkt_t *)->length);
1128 UBT_STAT_PCKTS_RECV(sc);
1129 UBT_STAT_BYTES_RECV(sc, m->m_pkthdr.len);
1131 ubt_fwd_mbuf_up(sc, &m);
1132 /* m == NULL at this point */
1135 /* Put SCO reassembly buffer back */
1136 sc->sc_isoc_in_buffer = m;
1139 } /* ubt_isoc_read_one_frame */
1142 * Called when outgoing isoc transfer (SCO packet) has completed, i.e.
1143 * SCO packet was sent to the device.
1148 ubt_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error)
1150 struct ubt_softc *sc = usbd_xfer_softc(xfer);
1151 struct usb_page_cache *pc;
1153 int n, space, offset;
1154 int actlen, nframes;
1156 usbd_xfer_status(xfer, &actlen, NULL, NULL, &nframes);
1157 pc = usbd_xfer_get_frame(xfer, 0);
1159 switch (USB_GET_STATE(xfer)) {
1160 case USB_ST_TRANSFERRED:
1161 UBT_INFO(sc, "sent %d bytes to isoc-out pipe\n", actlen);
1162 UBT_STAT_BYTES_SENT(sc, actlen);
1163 UBT_STAT_PCKTS_SENT(sc);
1169 space = usbd_xfer_max_framelen(xfer) * nframes;
1175 NG_BT_MBUFQ_DEQUEUE(&sc->sc_scoq, m);
1182 n = min(space, m->m_pkthdr.len);
1184 usbd_m_copy_in(pc, offset, m,0, n);
1191 if (m->m_pkthdr.len == 0)
1192 NG_FREE_M(m); /* sets m = NULL */
1195 /* Put whatever is left from mbuf back on queue */
1198 NG_BT_MBUFQ_PREPEND(&sc->sc_scoq, m);
1203 * Calculate sizes for isoc frames.
1204 * Note that offset could be 0 at this point (i.e. we have
1205 * nothing to send). That is fine, as we have isoc. transfers
1206 * going in both directions all the time. In this case it
1207 * would be just empty isoc. transfer.
1210 for (n = 0; n < nframes; n ++) {
1211 usbd_xfer_set_frame_len(xfer, n,
1212 min(offset, usbd_xfer_max_framelen(xfer)));
1213 offset -= usbd_xfer_frame_len(xfer, n);
1216 usbd_transfer_submit(xfer);
1219 default: /* Error */
1220 if (error != USB_ERR_CANCELLED) {
1221 UBT_STAT_OERROR(sc);
1225 /* transfer cancelled */
1231 * Utility function to forward provided mbuf upstream (i.e. up the stack).
1232 * Modifies value of the mbuf pointer (sets it to NULL).
1233 * Save to call from any context.
1237 ubt_fwd_mbuf_up(ubt_softc_p sc, struct mbuf **m)
1243 * Close the race with Netgraph hook newhook/disconnect methods.
1244 * Save the hook pointer atomically. Two cases are possible:
1246 * 1) The hook pointer is NULL. It means disconnect method got
1247 * there first. In this case we are done.
1249 * 2) The hook pointer is not NULL. It means that hook pointer
1250 * could be either in valid or invalid (i.e. in the process
1251 * of disconnect) state. In any case grab an extra reference
1252 * to protect the hook pointer.
1254 * It is ok to pass hook in invalid state to NG_SEND_DATA_ONLY() as
1255 * it checks for it. Drop extra reference after NG_SEND_DATA_ONLY().
1259 if ((hook = sc->sc_hook) != NULL)
1268 NG_SEND_DATA_ONLY(error, hook, *m);
1269 NG_HOOK_UNREF(hook);
1272 UBT_STAT_IERROR(sc);
1275 } /* ubt_fwd_mbuf_up */
1277 /****************************************************************************
1278 ****************************************************************************
1280 ****************************************************************************
1281 ****************************************************************************/
1284 * Schedule glue task. Should be called with sc_ng_mtx held.
1289 ubt_task_schedule(ubt_softc_p sc, int action)
1291 mtx_assert(&sc->sc_ng_mtx, MA_OWNED);
1294 * Try to handle corner case when "start all" and "stop all"
1295 * actions can both be set before task is executed.
1299 * sc_task_flags action new sc_task_flags
1300 * ------------------------------------------------------
1305 * stop start stop|start
1307 * stop|start start stop|start
1308 * stop|start stop stop
1312 if ((action & UBT_FLAG_T_STOP_ALL) != 0)
1313 sc->sc_task_flags &= ~UBT_FLAG_T_START_ALL;
1315 sc->sc_task_flags |= action;
1318 if (sc->sc_task_flags & UBT_FLAG_T_PENDING)
1321 if (taskqueue_enqueue(taskqueue_swi, &sc->sc_task) == 0) {
1322 sc->sc_task_flags |= UBT_FLAG_T_PENDING;
1326 /* XXX: i think this should never happen */
1327 } /* ubt_task_schedule */
1330 * Glue task. Examines sc_task_flags and does things depending on it.
1331 * Taskqueue context.
1335 ubt_task(void *context, int pending)
1337 ubt_softc_p sc = context;
1341 task_flags = sc->sc_task_flags;
1342 sc->sc_task_flags = 0;
1346 * Stop all USB transfers synchronously.
1347 * Stop interface #0 and #1 transfers at the same time and in the
1348 * same loop. usbd_transfer_drain() will do appropriate locking.
1351 if (task_flags & UBT_FLAG_T_STOP_ALL)
1352 for (i = 0; i < UBT_N_TRANSFER; i ++)
1353 usbd_transfer_drain(sc->sc_xfer[i]);
1355 /* Start incoming interrupt and bulk, and all isoc. USB transfers */
1356 if (task_flags & UBT_FLAG_T_START_ALL) {
1361 mtx_lock(&sc->sc_if_mtx);
1363 ubt_xfer_start(sc, UBT_IF_0_INTR_DT_RD);
1364 ubt_xfer_start(sc, UBT_IF_0_BULK_DT_RD);
1368 * Start both read and write isoc. transfers by default.
1369 * Get them going all the time even if we have nothing
1370 * to send to avoid any delays.
1373 ubt_xfer_start(sc, UBT_IF_1_ISOC_DT_RD1);
1374 ubt_xfer_start(sc, UBT_IF_1_ISOC_DT_RD2);
1375 ubt_xfer_start(sc, UBT_IF_1_ISOC_DT_WR1);
1376 ubt_xfer_start(sc, UBT_IF_1_ISOC_DT_WR2);
1378 mtx_unlock(&sc->sc_if_mtx);
1381 /* Start outgoing control transfer */
1382 if (task_flags & UBT_FLAG_T_START_CTRL) {
1383 mtx_lock(&sc->sc_if_mtx);
1384 ubt_xfer_start(sc, UBT_IF_0_CTRL_DT_WR);
1385 mtx_unlock(&sc->sc_if_mtx);
1388 /* Start outgoing bulk transfer */
1389 if (task_flags & UBT_FLAG_T_START_BULK) {
1390 mtx_lock(&sc->sc_if_mtx);
1391 ubt_xfer_start(sc, UBT_IF_0_BULK_DT_WR);
1392 mtx_unlock(&sc->sc_if_mtx);
1396 /****************************************************************************
1397 ****************************************************************************
1398 ** Netgraph specific
1399 ****************************************************************************
1400 ****************************************************************************/
1403 * Netgraph node constructor. Do not allow to create node of this type.
1408 ng_ubt_constructor(node_p node)
1411 } /* ng_ubt_constructor */
1414 * Netgraph node destructor. Destroy node only when device has been detached.
1419 ng_ubt_shutdown(node_p node)
1421 if (node->nd_flags & NGF_REALLY_DIE) {
1423 * We came here because the USB device is being
1424 * detached, so stop being persistant.
1426 NG_NODE_SET_PRIVATE(node, NULL);
1427 NG_NODE_UNREF(node);
1429 NG_NODE_REVIVE(node); /* tell ng_rmnode we are persisant */
1432 } /* ng_ubt_shutdown */
1435 * Create new hook. There can only be one.
1440 ng_ubt_newhook(node_p node, hook_p hook, char const *name)
1442 struct ubt_softc *sc = NG_NODE_PRIVATE(node);
1444 if (strcmp(name, NG_UBT_HOOK) != 0)
1448 if (sc->sc_hook != NULL) {
1458 } /* ng_ubt_newhook */
1461 * Connect hook. Start incoming USB transfers.
1466 ng_ubt_connect(hook_p hook)
1468 struct ubt_softc *sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
1470 NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
1473 ubt_task_schedule(sc, UBT_FLAG_T_START_ALL);
1477 } /* ng_ubt_connect */
1485 ng_ubt_disconnect(hook_p hook)
1487 struct ubt_softc *sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
1491 if (hook != sc->sc_hook) {
1499 /* Kick off task to stop all USB xfers */
1500 ubt_task_schedule(sc, UBT_FLAG_T_STOP_ALL);
1503 NG_BT_MBUFQ_DRAIN(&sc->sc_cmdq);
1504 NG_BT_MBUFQ_DRAIN(&sc->sc_aclq);
1505 NG_BT_MBUFQ_DRAIN(&sc->sc_scoq);
1510 } /* ng_ubt_disconnect */
1513 * Process control message.
1518 ng_ubt_rcvmsg(node_p node, item_p item, hook_p lasthook)
1520 struct ubt_softc *sc = NG_NODE_PRIVATE(node);
1521 struct ng_mesg *msg, *rsp = NULL;
1522 struct ng_bt_mbufq *q;
1523 int error = 0, queue, qlen;
1525 NGI_GET_MSG(item, msg);
1527 switch (msg->header.typecookie) {
1528 case NGM_GENERIC_COOKIE:
1529 switch (msg->header.cmd) {
1530 case NGM_TEXT_STATUS:
1531 NG_MKRESPONSE(rsp, msg, NG_TEXTRESPONSE, M_NOWAIT);
1537 snprintf(rsp->data, NG_TEXTRESPONSE,
1539 "Task flags: %#x\n" \
1541 "CMD queue: [have:%d,max:%d]\n" \
1542 "ACL queue: [have:%d,max:%d]\n" \
1543 "SCO queue: [have:%d,max:%d]",
1544 (sc->sc_hook != NULL) ? NG_UBT_HOOK : "",
1552 sc->sc_scoq.maxlen);
1561 case NGM_UBT_COOKIE:
1562 switch (msg->header.cmd) {
1563 case NGM_UBT_NODE_SET_DEBUG:
1564 if (msg->header.arglen != sizeof(ng_ubt_node_debug_ep)){
1569 sc->sc_debug = *((ng_ubt_node_debug_ep *) (msg->data));
1572 case NGM_UBT_NODE_GET_DEBUG:
1573 NG_MKRESPONSE(rsp, msg, sizeof(ng_ubt_node_debug_ep),
1580 *((ng_ubt_node_debug_ep *) (rsp->data)) = sc->sc_debug;
1583 case NGM_UBT_NODE_SET_QLEN:
1584 if (msg->header.arglen != sizeof(ng_ubt_node_qlen_ep)) {
1589 queue = ((ng_ubt_node_qlen_ep *) (msg->data))->queue;
1590 qlen = ((ng_ubt_node_qlen_ep *) (msg->data))->qlen;
1593 case NGM_UBT_NODE_QUEUE_CMD:
1597 case NGM_UBT_NODE_QUEUE_ACL:
1601 case NGM_UBT_NODE_QUEUE_SCO:
1614 case NGM_UBT_NODE_GET_QLEN:
1615 if (msg->header.arglen != sizeof(ng_ubt_node_qlen_ep)) {
1620 queue = ((ng_ubt_node_qlen_ep *) (msg->data))->queue;
1623 case NGM_UBT_NODE_QUEUE_CMD:
1627 case NGM_UBT_NODE_QUEUE_ACL:
1631 case NGM_UBT_NODE_QUEUE_SCO:
1641 NG_MKRESPONSE(rsp, msg, sizeof(ng_ubt_node_qlen_ep),
1648 ((ng_ubt_node_qlen_ep *) (rsp->data))->queue = queue;
1649 ((ng_ubt_node_qlen_ep *) (rsp->data))->qlen = q->maxlen;
1652 case NGM_UBT_NODE_GET_STAT:
1653 NG_MKRESPONSE(rsp, msg, sizeof(ng_ubt_node_stat_ep),
1660 bcopy(&sc->sc_stat, rsp->data,
1661 sizeof(ng_ubt_node_stat_ep));
1664 case NGM_UBT_NODE_RESET_STAT:
1679 NG_RESPOND_MSG(error, node, item, rsp);
1683 } /* ng_ubt_rcvmsg */
1691 ng_ubt_rcvdata(hook_p hook, item_p item)
1693 struct ubt_softc *sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
1695 struct ng_bt_mbufq *q;
1696 int action, error = 0;
1698 if (hook != sc->sc_hook) {
1703 /* Deatch mbuf and get HCI frame type */
1707 * Minimal size of the HCI frame is 4 bytes: 1 byte frame type,
1708 * 2 bytes connection handle and at least 1 byte of length.
1709 * Panic on data frame that has size smaller than 4 bytes (it
1710 * should not happen)
1713 if (m->m_pkthdr.len < 4)
1714 panic("HCI frame size is too small! pktlen=%d\n",
1717 /* Process HCI frame */
1718 switch (*mtod(m, uint8_t *)) { /* XXX call m_pullup ? */
1719 case NG_HCI_CMD_PKT:
1720 if (m->m_pkthdr.len - 1 > (int)UBT_CTRL_BUFFER_SIZE)
1721 panic("HCI command frame size is too big! " \
1722 "buffer size=%zd, packet len=%d\n",
1723 UBT_CTRL_BUFFER_SIZE, m->m_pkthdr.len);
1726 action = UBT_FLAG_T_START_CTRL;
1729 case NG_HCI_ACL_DATA_PKT:
1730 if (m->m_pkthdr.len - 1 > UBT_BULK_WRITE_BUFFER_SIZE)
1731 panic("ACL data frame size is too big! " \
1732 "buffer size=%d, packet len=%d\n",
1733 UBT_BULK_WRITE_BUFFER_SIZE, m->m_pkthdr.len);
1736 action = UBT_FLAG_T_START_BULK;
1739 case NG_HCI_SCO_DATA_PKT:
1745 UBT_ERR(sc, "Dropping unsupported HCI frame, type=0x%02x, " \
1746 "pktlen=%d\n", *mtod(m, uint8_t *), m->m_pkthdr.len);
1755 if (NG_BT_MBUFQ_FULL(q)) {
1756 NG_BT_MBUFQ_DROP(q);
1759 UBT_ERR(sc, "Dropping HCI frame 0x%02x, len=%d. Queue full\n",
1760 *mtod(m, uint8_t *), m->m_pkthdr.len);
1764 /* Loose HCI packet type, enqueue mbuf and kick off task */
1765 m_adj(m, sizeof(uint8_t));
1766 NG_BT_MBUFQ_ENQUEUE(q, m);
1767 ubt_task_schedule(sc, action);
1774 } /* ng_ubt_rcvdata */
1776 /****************************************************************************
1777 ****************************************************************************
1779 ****************************************************************************
1780 ****************************************************************************/
1783 * Load/Unload the driver module
1787 ubt_modevent(module_t mod, int event, void *data)
1793 error = ng_newtype(&typestruct);
1795 printf("%s: Could not register Netgraph node type, " \
1796 "error=%d\n", NG_UBT_NODE_TYPE, error);
1800 error = ng_rmtype(&typestruct);
1809 } /* ubt_modevent */
1811 static devclass_t ubt_devclass;
1813 static device_method_t ubt_methods[] =
1815 DEVMETHOD(device_probe, ubt_probe),
1816 DEVMETHOD(device_attach, ubt_attach),
1817 DEVMETHOD(device_detach, ubt_detach),
1821 static driver_t ubt_driver =
1824 .methods = ubt_methods,
1825 .size = sizeof(struct ubt_softc),
1828 DRIVER_MODULE(ng_ubt, uhub, ubt_driver, ubt_devclass, ubt_modevent, 0);
1829 MODULE_VERSION(ng_ubt, NG_BLUETOOTH_VERSION);
1830 MODULE_DEPEND(ng_ubt, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
1831 MODULE_DEPEND(ng_ubt, ng_hci, NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
1832 MODULE_DEPEND(ng_ubt, usb, 1, 1, 1);