1 /* $NetBSD: if_cdce.c,v 1.4 2004/10/24 12:50:54 augustss Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 1997, 1998, 1999, 2000-2003 Bill Paul <wpaul@windriver.com>
7 * Copyright (c) 2003-2005 Craig Boston
8 * Copyright (c) 2004 Daniel Hartmeier
9 * Copyright (c) 2009 Hans Petter Selasky
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by Bill Paul.
23 * 4. Neither the name of the author nor the names of any co-contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul, THE VOICES IN HIS HEAD OR
31 * THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
32 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
33 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
34 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
35 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
36 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*
41 * USB Communication Device Class (Ethernet Networking Control Model)
42 * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
43 */
44
45 /*
46 * USB Network Control Model (NCM)
47 * http://www.usb.org/developers/devclass_docs/NCM10.zip
48 */
49
50 #include <sys/gsb_crc32.h>
51 #include <sys/eventhandler.h>
52 #include <sys/stdint.h>
53 #include <sys/stddef.h>
54 #include <sys/queue.h>
55 #include <sys/systm.h>
56 #include <sys/socket.h>
57 #include <sys/kernel.h>
58 #include <sys/bus.h>
59 #include <sys/module.h>
60 #include <sys/lock.h>
61 #include <sys/mutex.h>
62 #include <sys/condvar.h>
63 #include <sys/sysctl.h>
64 #include <sys/sx.h>
65 #include <sys/unistd.h>
66 #include <sys/callout.h>
67 #include <sys/malloc.h>
68 #include <sys/priv.h>
69
70 #include <net/if.h>
71 #include <net/if_var.h>
72
73 #include <dev/usb/usb.h>
74 #include <dev/usb/usbdi.h>
75 #include <dev/usb/usbdi_util.h>
76 #include <dev/usb/usb_cdc.h>
77 #include "usbdevs.h"
78
79 #define USB_DEBUG_VAR cdce_debug
80 #include <dev/usb/usb_debug.h>
81 #include <dev/usb/usb_process.h>
82 #include <dev/usb/usb_msctest.h>
83 #include "usb_if.h"
84
85 #include <dev/usb/net/usb_ethernet.h>
86 #include <dev/usb/net/if_cdcereg.h>
87
88 static device_probe_t cdce_probe;
89 static device_attach_t cdce_attach;
90 static device_detach_t cdce_detach;
91 static device_suspend_t cdce_suspend;
92 static device_resume_t cdce_resume;
93 static usb_handle_request_t cdce_handle_request;
94
95 static usb_callback_t cdce_bulk_write_callback;
96 static usb_callback_t cdce_bulk_read_callback;
97 static usb_callback_t cdce_intr_read_callback;
98 static usb_callback_t cdce_intr_write_callback;
99
100 #if CDCE_HAVE_NCM
101 static usb_callback_t cdce_ncm_bulk_write_callback;
102 static usb_callback_t cdce_ncm_bulk_read_callback;
103 #endif
104
105 static uether_fn_t cdce_attach_post;
106 static uether_fn_t cdce_init;
107 static uether_fn_t cdce_stop;
108 static uether_fn_t cdce_start;
109 static uether_fn_t cdce_setmulti;
110 static uether_fn_t cdce_setpromisc;
111 static int cdce_attach_post_sub(struct usb_ether *);
112 static int cdce_ioctl(if_t, u_long, caddr_t);
113 static int cdce_media_change_cb(if_t);
114 static void cdce_media_status_cb(if_t, struct ifmediareq *);
115
116 static uint32_t cdce_m_crc32(struct mbuf *, uint32_t, uint32_t);
117 static void cdce_set_filter(struct usb_ether *);
118
119 #ifdef USB_DEBUG
120 static int cdce_debug = 0;
121 static int cdce_tx_interval = 0;
122
123 static SYSCTL_NODE(_hw_usb, OID_AUTO, cdce, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
124 "USB CDC-Ethernet");
125 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, debug, CTLFLAG_RWTUN, &cdce_debug, 0,
126 "Debug level");
127 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, interval, CTLFLAG_RWTUN, &cdce_tx_interval, 0,
128 "NCM transmit interval in ms");
129 #else
130 #define cdce_debug 0
131 #endif
132
133 static const struct usb_config cdce_config[CDCE_N_TRANSFER] = {
134 [CDCE_BULK_RX] = {
135 .type = UE_BULK,
136 .endpoint = UE_ADDR_ANY,
137 .direction = UE_DIR_RX,
138 .if_index = 0,
139 .frames = CDCE_FRAMES_MAX,
140 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES),
141 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,.ext_buffer = 1,},
142 .callback = cdce_bulk_read_callback,
143 .timeout = 0, /* no timeout */
144 .usb_mode = USB_MODE_DUAL, /* both modes */
145 },
146
147 [CDCE_BULK_TX] = {
148 .type = UE_BULK,
149 .endpoint = UE_ADDR_ANY,
150 .direction = UE_DIR_TX,
151 .if_index = 0,
152 .frames = CDCE_FRAMES_MAX,
153 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES),
154 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,},
155 .callback = cdce_bulk_write_callback,
156 .timeout = 10000, /* 10 seconds */
157 .usb_mode = USB_MODE_DUAL, /* both modes */
158 },
159
160 [CDCE_INTR_RX] = {
161 .type = UE_INTERRUPT,
162 .endpoint = UE_ADDR_ANY,
163 .direction = UE_DIR_RX,
164 .if_index = 1,
165 .bufsize = CDCE_IND_SIZE_MAX,
166 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,},
167 .callback = cdce_intr_read_callback,
168 .timeout = 0,
169 .usb_mode = USB_MODE_HOST,
170 },
171
172 [CDCE_INTR_TX] = {
173 .type = UE_INTERRUPT,
174 .endpoint = UE_ADDR_ANY,
175 .direction = UE_DIR_TX,
176 .if_index = 1,
177 .bufsize = CDCE_IND_SIZE_MAX,
178 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,},
179 .callback = cdce_intr_write_callback,
180 .timeout = 10000, /* 10 seconds */
181 .usb_mode = USB_MODE_DEVICE,
182 },
183 };
184
185 #if CDCE_HAVE_NCM
186 static const struct usb_config cdce_ncm_config[CDCE_N_TRANSFER] = {
187 [CDCE_BULK_RX] = {
188 .type = UE_BULK,
189 .endpoint = UE_ADDR_ANY,
190 .direction = UE_DIR_RX,
191 .if_index = 0,
192 .frames = CDCE_NCM_RX_FRAMES_MAX,
193 .bufsize = (CDCE_NCM_RX_FRAMES_MAX * CDCE_NCM_RX_MAXLEN),
194 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,},
195 .callback = cdce_ncm_bulk_read_callback,
196 .timeout = 0, /* no timeout */
197 .usb_mode = USB_MODE_DUAL, /* both modes */
198 },
199
200 [CDCE_BULK_TX] = {
201 .type = UE_BULK,
202 .endpoint = UE_ADDR_ANY,
203 .direction = UE_DIR_TX,
204 .if_index = 0,
205 .frames = CDCE_NCM_TX_FRAMES_MAX,
206 .bufsize = (CDCE_NCM_TX_FRAMES_MAX * CDCE_NCM_TX_MAXLEN),
207 .flags = {.pipe_bof = 1,},
208 .callback = cdce_ncm_bulk_write_callback,
209 .timeout = 10000, /* 10 seconds */
210 .usb_mode = USB_MODE_DUAL, /* both modes */
211 },
212
213 [CDCE_INTR_RX] = {
214 .type = UE_INTERRUPT,
215 .endpoint = UE_ADDR_ANY,
216 .direction = UE_DIR_RX,
217 .if_index = 1,
218 .bufsize = CDCE_IND_SIZE_MAX,
219 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,},
220 .callback = cdce_intr_read_callback,
221 .timeout = 0,
222 .usb_mode = USB_MODE_HOST,
223 },
224
225 [CDCE_INTR_TX] = {
226 .type = UE_INTERRUPT,
227 .endpoint = UE_ADDR_ANY,
228 .direction = UE_DIR_TX,
229 .if_index = 1,
230 .bufsize = CDCE_IND_SIZE_MAX,
231 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,},
232 .callback = cdce_intr_write_callback,
233 .timeout = 10000, /* 10 seconds */
234 .usb_mode = USB_MODE_DEVICE,
235 },
236 };
237 #endif
238
239 static device_method_t cdce_methods[] = {
240 /* USB interface */
241 DEVMETHOD(usb_handle_request, cdce_handle_request),
242
243 /* Device interface */
244 DEVMETHOD(device_probe, cdce_probe),
245 DEVMETHOD(device_attach, cdce_attach),
246 DEVMETHOD(device_detach, cdce_detach),
247 DEVMETHOD(device_suspend, cdce_suspend),
248 DEVMETHOD(device_resume, cdce_resume),
249
250 DEVMETHOD_END
251 };
252
253 static driver_t cdce_driver = {
254 .name = "cdce",
255 .methods = cdce_methods,
256 .size = sizeof(struct cdce_softc),
257 };
258
259 static eventhandler_tag cdce_etag;
260
261 static int cdce_driver_loaded(struct module *, int, void *);
262
263 static const STRUCT_USB_HOST_ID cdce_switch_devs[] = {
264 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3272_INIT, MSC_EJECT_HUAWEI2)},
265 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372v153_INIT, MSC_EJECT_HUAWEI2)},
266 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372_INIT, MSC_EJECT_HUAWEI4)},
267 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E5573Cs322_ECM, MSC_EJECT_HUAWEI3)},
268 };
269
270 static const STRUCT_USB_HOST_ID cdce_host_devs[] = {
271 {USB_VPI(USB_VENDOR_ACERLABS, USB_PRODUCT_ACERLABS_M5632, CDCE_FLAG_NO_UNION)},
272 {USB_VPI(USB_VENDOR_AMBIT, USB_PRODUCT_AMBIT_NTL_250, CDCE_FLAG_NO_UNION)},
273 {USB_VPI(USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQLINUX, CDCE_FLAG_NO_UNION)},
274 {USB_VPI(USB_VENDOR_GMATE, USB_PRODUCT_GMATE_YP3X00, CDCE_FLAG_NO_UNION)},
275 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
276 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN2, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
277 {USB_VPI(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2501, CDCE_FLAG_NO_UNION)},
278 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5500, CDCE_FLAG_ZAURUS)},
279 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5600, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
280 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLA300, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
281 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC700, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
282 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC750, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
283
284 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
285 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x16),
286 USB_DRIVER_INFO(0)},
287 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
288 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x46),
289 USB_DRIVER_INFO(0)},
290 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
291 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x76),
292 USB_DRIVER_INFO(0)},
293 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
294 USB_IFACE_SUBCLASS(0x03), USB_IFACE_PROTOCOL(0x16),
295 USB_DRIVER_INFO(0)},
296 };
297
298 static const STRUCT_USB_DUAL_ID cdce_dual_devs[] = {
299 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL, 0)},
300 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_MOBILE_DIRECT_LINE_MODEL, 0)},
301 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_NETWORK_CONTROL_MODEL, 0)},
302 };
303
304 DRIVER_MODULE(cdce, uhub, cdce_driver, cdce_driver_loaded, NULL);
305 MODULE_VERSION(cdce, 1);
306 MODULE_DEPEND(cdce, uether, 1, 1, 1);
307 MODULE_DEPEND(cdce, usb, 1, 1, 1);
308 MODULE_DEPEND(cdce, ether, 1, 1, 1);
309 USB_PNP_DEVICE_INFO(cdce_switch_devs);
310 USB_PNP_HOST_INFO(cdce_host_devs);
311 USB_PNP_DUAL_INFO(cdce_dual_devs);
312
313 static const struct usb_ether_methods cdce_ue_methods = {
314 .ue_attach_post = cdce_attach_post,
315 .ue_attach_post_sub = cdce_attach_post_sub,
316 .ue_start = cdce_start,
317 .ue_init = cdce_init,
318 .ue_stop = cdce_stop,
319 .ue_setmulti = cdce_setmulti,
320 .ue_setpromisc = cdce_setpromisc,
321 };
322
323 #if CDCE_HAVE_NCM
324 /*------------------------------------------------------------------------*
325 * cdce_ncm_init
326 *
327 * Return values:
328 * 0: Success
329 * Else: Failure
330 *------------------------------------------------------------------------*/
331 static uint8_t
cdce_ncm_init(struct cdce_softc * sc)332 cdce_ncm_init(struct cdce_softc *sc)
333 {
334 struct usb_ncm_parameters temp;
335 struct usb_device_request req;
336 struct usb_ncm_func_descriptor *ufd;
337 uint8_t value[8];
338 int err;
339
340 ufd = usbd_find_descriptor(sc->sc_ue.ue_udev, NULL,
341 sc->sc_ifaces_index[1], UDESC_CS_INTERFACE, 0xFF,
342 UCDC_NCM_FUNC_DESC_SUBTYPE, 0xFF);
343
344 /* verify length of NCM functional descriptor */
345 if (ufd != NULL) {
346 if (ufd->bLength < sizeof(*ufd))
347 ufd = NULL;
348 else
349 DPRINTFN(1, "Found NCM functional descriptor.\n");
350 }
351
352 req.bmRequestType = UT_READ_CLASS_INTERFACE;
353 req.bRequest = UCDC_NCM_GET_NTB_PARAMETERS;
354 USETW(req.wValue, 0);
355 req.wIndex[0] = sc->sc_ifaces_index[1];
356 req.wIndex[1] = 0;
357 USETW(req.wLength, sizeof(temp));
358
359 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
360 &temp, 0, NULL, 1000 /* ms */);
361 if (err)
362 return (1);
363
364 /* Read correct set of parameters according to device mode */
365
366 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
367 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbInMaxSize);
368 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbOutMaxSize);
369 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpOutPayloadRemainder);
370 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpOutDivisor);
371 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpOutAlignment);
372 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams);
373 } else {
374 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbOutMaxSize);
375 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbInMaxSize);
376 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpInPayloadRemainder);
377 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpInDivisor);
378 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpInAlignment);
379 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams);
380 }
381
382 /* Verify maximum receive length */
383
384 if ((sc->sc_ncm.rx_max < 32) ||
385 (sc->sc_ncm.rx_max > CDCE_NCM_RX_MAXLEN)) {
386 DPRINTFN(1, "Using default maximum receive length\n");
387 sc->sc_ncm.rx_max = CDCE_NCM_RX_MAXLEN;
388 }
389
390 /* Verify maximum transmit length */
391
392 if ((sc->sc_ncm.tx_max < 32) ||
393 (sc->sc_ncm.tx_max > CDCE_NCM_TX_MAXLEN)) {
394 DPRINTFN(1, "Using default maximum transmit length\n");
395 sc->sc_ncm.tx_max = CDCE_NCM_TX_MAXLEN;
396 }
397
398 /*
399 * Verify that the structure alignment is:
400 * - power of two
401 * - not greater than the maximum transmit length
402 * - not less than four bytes
403 */
404 if ((sc->sc_ncm.tx_struct_align < 4) ||
405 (sc->sc_ncm.tx_struct_align !=
406 ((-sc->sc_ncm.tx_struct_align) & sc->sc_ncm.tx_struct_align)) ||
407 (sc->sc_ncm.tx_struct_align >= sc->sc_ncm.tx_max)) {
408 DPRINTFN(1, "Using default other alignment: 4 bytes\n");
409 sc->sc_ncm.tx_struct_align = 4;
410 }
411
412 /*
413 * Verify that the payload alignment is:
414 * - power of two
415 * - not greater than the maximum transmit length
416 * - not less than four bytes
417 */
418 if ((sc->sc_ncm.tx_modulus < 4) ||
419 (sc->sc_ncm.tx_modulus !=
420 ((-sc->sc_ncm.tx_modulus) & sc->sc_ncm.tx_modulus)) ||
421 (sc->sc_ncm.tx_modulus >= sc->sc_ncm.tx_max)) {
422 DPRINTFN(1, "Using default transmit modulus: 4 bytes\n");
423 sc->sc_ncm.tx_modulus = 4;
424 }
425
426 /* Verify that the payload remainder */
427
428 if ((sc->sc_ncm.tx_remainder >= sc->sc_ncm.tx_modulus)) {
429 DPRINTFN(1, "Using default transmit remainder: 0 bytes\n");
430 sc->sc_ncm.tx_remainder = 0;
431 }
432
433 /*
434 * Offset the TX remainder so that IP packet payload starts at
435 * the tx_modulus. This is not too clear in the specification.
436 */
437
438 sc->sc_ncm.tx_remainder =
439 (sc->sc_ncm.tx_remainder - ETHER_HDR_LEN) &
440 (sc->sc_ncm.tx_modulus - 1);
441
442 /* Verify max datagrams */
443
444 if (sc->sc_ncm.tx_nframe == 0 ||
445 sc->sc_ncm.tx_nframe > (CDCE_NCM_SUBFRAMES_MAX - 1)) {
446 DPRINTFN(1, "Using default max "
447 "subframes: %u units\n", CDCE_NCM_SUBFRAMES_MAX - 1);
448 /* need to reserve one entry for zero padding */
449 sc->sc_ncm.tx_nframe = (CDCE_NCM_SUBFRAMES_MAX - 1);
450 }
451
452 /* Additional configuration, will fail in device side mode, which is OK. */
453
454 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
455 req.bRequest = UCDC_NCM_SET_NTB_INPUT_SIZE;
456 USETW(req.wValue, 0);
457 req.wIndex[0] = sc->sc_ifaces_index[1];
458 req.wIndex[1] = 0;
459
460 if (ufd != NULL &&
461 (ufd->bmNetworkCapabilities & UCDC_NCM_CAP_MAX_DGRAM)) {
462 USETW(req.wLength, 8);
463 USETDW(value, sc->sc_ncm.rx_max);
464 USETW(value + 4, (CDCE_NCM_SUBFRAMES_MAX - 1));
465 USETW(value + 6, 0);
466 } else {
467 USETW(req.wLength, 4);
468 USETDW(value, sc->sc_ncm.rx_max);
469 }
470
471 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
472 &value, 0, NULL, 1000 /* ms */);
473 if (err) {
474 DPRINTFN(1, "Setting input size "
475 "to %u failed.\n", sc->sc_ncm.rx_max);
476 }
477
478 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
479 req.bRequest = UCDC_NCM_SET_CRC_MODE;
480 USETW(req.wValue, 0); /* no CRC */
481 req.wIndex[0] = sc->sc_ifaces_index[1];
482 req.wIndex[1] = 0;
483 USETW(req.wLength, 0);
484
485 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
486 NULL, 0, NULL, 1000 /* ms */);
487 if (err) {
488 DPRINTFN(1, "Setting CRC mode to off failed.\n");
489 }
490
491 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
492 req.bRequest = UCDC_NCM_SET_NTB_FORMAT;
493 USETW(req.wValue, 0); /* NTB-16 */
494 req.wIndex[0] = sc->sc_ifaces_index[1];
495 req.wIndex[1] = 0;
496 USETW(req.wLength, 0);
497
498 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
499 NULL, 0, NULL, 1000 /* ms */);
500 if (err) {
501 DPRINTFN(1, "Setting NTB format to 16-bit failed.\n");
502 }
503
504 return (0); /* success */
505 }
506 #endif
507
508 static void
cdce_test_autoinst(void * arg,struct usb_device * udev,struct usb_attach_arg * uaa)509 cdce_test_autoinst(void *arg, struct usb_device *udev,
510 struct usb_attach_arg *uaa)
511 {
512 struct usb_interface *iface;
513 struct usb_interface_descriptor *id;
514
515 if (uaa->dev_state != UAA_DEV_READY)
516 return;
517
518 iface = usbd_get_iface(udev, 0);
519 if (iface == NULL)
520 return;
521 id = iface->idesc;
522 if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
523 return;
524 if (usbd_lookup_id_by_uaa(cdce_switch_devs, sizeof(cdce_switch_devs), uaa))
525 return; /* no device match */
526
527 if (usb_msc_eject(udev, 0, USB_GET_DRIVER_INFO(uaa)) == 0) {
528 /* success, mark the udev as disappearing */
529 uaa->dev_state = UAA_DEV_EJECTING;
530 }
531 }
532
533 static int
cdce_driver_loaded(struct module * mod,int what,void * arg)534 cdce_driver_loaded(struct module *mod, int what, void *arg)
535 {
536 switch (what) {
537 case MOD_LOAD:
538 /* register our autoinstall handler */
539 cdce_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
540 cdce_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
541 return (0);
542 case MOD_UNLOAD:
543 EVENTHANDLER_DEREGISTER(usb_dev_configured, cdce_etag);
544 return (0);
545 default:
546 return (EOPNOTSUPP);
547 }
548 }
549
550 static int
cdce_probe(device_t dev)551 cdce_probe(device_t dev)
552 {
553 struct usb_attach_arg *uaa = device_get_ivars(dev);
554 int error;
555
556 error = usbd_lookup_id_by_uaa(cdce_host_devs, sizeof(cdce_host_devs), uaa);
557 if (error)
558 error = usbd_lookup_id_by_uaa(cdce_dual_devs, sizeof(cdce_dual_devs), uaa);
559 return (error);
560 }
561
562 static void
cdce_attach_post(struct usb_ether * ue)563 cdce_attach_post(struct usb_ether *ue)
564 {
565 /* no-op */
566 return;
567 }
568
569 static int
cdce_attach_post_sub(struct usb_ether * ue)570 cdce_attach_post_sub(struct usb_ether *ue)
571 {
572 struct cdce_softc *sc = uether_getsc(ue);
573 if_t ifp = uether_getifp(ue);
574
575 /* mostly copied from usb_ethernet.c */
576 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
577 if_setstartfn(ifp, uether_start);
578 if_setioctlfn(ifp, cdce_ioctl);
579 if_setinitfn(ifp, uether_init);
580 if_setsendqlen(ifp, ifqmaxlen);
581 if_setsendqready(ifp);
582
583 if ((sc->sc_flags & CDCE_FLAG_VLAN) == CDCE_FLAG_VLAN)
584 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0);
585
586 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE, 0);
587 if_setcapenable(ifp, if_getcapabilities(ifp));
588
589 ifmedia_init(&sc->sc_media, IFM_IMASK, cdce_media_change_cb,
590 cdce_media_status_cb);
591 ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL);
592 ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO);
593 sc->sc_media.ifm_media = sc->sc_media.ifm_cur->ifm_media;
594 CDCE_LOCK(sc);
595 cdce_set_filter(ue);
596 CDCE_UNLOCK(sc);
597
598 return 0;
599 }
600
601 static int
cdce_attach(device_t dev)602 cdce_attach(device_t dev)
603 {
604 struct cdce_softc *sc = device_get_softc(dev);
605 struct usb_ether *ue = &sc->sc_ue;
606 struct usb_attach_arg *uaa = device_get_ivars(dev);
607 struct usb_interface *iface;
608 const struct usb_cdc_union_descriptor *ud;
609 const struct usb_interface_descriptor *id;
610 const struct usb_cdc_ethernet_descriptor *ued;
611 const struct usb_config *pcfg;
612 uint32_t seed;
613 int error;
614 uint8_t i;
615 uint8_t data_iface_no;
616 char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */
617
618 sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
619 sc->sc_ue.ue_udev = uaa->device;
620
621 device_set_usb_desc(dev);
622
623 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
624
625 ud = usbd_find_descriptor
626 (uaa->device, NULL, uaa->info.bIfaceIndex,
627 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_UNION, 0xFF);
628
629 if ((ud == NULL) || (ud->bLength < sizeof(*ud)) ||
630 (sc->sc_flags & CDCE_FLAG_NO_UNION)) {
631 DPRINTFN(1, "No union descriptor!\n");
632 sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex;
633 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
634 goto alloc_transfers;
635 }
636 data_iface_no = ud->bSlaveInterface[0];
637
638 for (i = 0;; i++) {
639 iface = usbd_get_iface(uaa->device, i);
640
641 if (iface) {
642 id = usbd_get_interface_descriptor(iface);
643
644 if (id && (id->bInterfaceNumber == data_iface_no)) {
645 sc->sc_ifaces_index[0] = i;
646 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
647 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex);
648 break;
649 }
650 } else {
651 device_printf(dev, "no data interface found\n");
652 goto detach;
653 }
654 }
655
656 /*
657 * <quote>
658 *
659 * The Data Class interface of a networking device shall have
660 * a minimum of two interface settings. The first setting
661 * (the default interface setting) includes no endpoints and
662 * therefore no networking traffic is exchanged whenever the
663 * default interface setting is selected. One or more
664 * additional interface settings are used for normal
665 * operation, and therefore each includes a pair of endpoints
666 * (one IN, and one OUT) to exchange network traffic. Select
667 * an alternate interface setting to initialize the network
668 * aspects of the device and to enable the exchange of
669 * network traffic.
670 *
671 * </quote>
672 *
673 * Some devices, most notably cable modems, include interface
674 * settings that have no IN or OUT endpoint, therefore loop
675 * through the list of all available interface settings
676 * looking for one with both IN and OUT endpoints.
677 */
678
679 alloc_transfers:
680
681 pcfg = cdce_config; /* Default Configuration */
682
683 for (i = 0; i != 32; i++) {
684 error = usbd_set_alt_interface_index(uaa->device,
685 sc->sc_ifaces_index[0], i);
686 if (error)
687 break;
688 #if CDCE_HAVE_NCM
689 if ((i == 0) && (cdce_ncm_init(sc) == 0))
690 pcfg = cdce_ncm_config;
691 #endif
692 error = usbd_transfer_setup(uaa->device,
693 sc->sc_ifaces_index, sc->sc_xfer,
694 pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx);
695
696 if (error == 0)
697 break;
698 }
699
700 if (error || (i == 32)) {
701 device_printf(dev, "No valid alternate "
702 "setting found\n");
703 goto detach;
704 }
705
706 ued = usbd_find_descriptor
707 (uaa->device, NULL, uaa->info.bIfaceIndex,
708 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_ENF, 0xFF);
709
710 if ((ued == NULL) || (ued->bLength < sizeof(*ued))) {
711 error = USB_ERR_INVAL;
712 } else {
713 /*
714 * ECM 1.2 doesn't say it excludes the CRC, but states that it's
715 * normally 1514, which excludes the CRC.
716 */
717 DPRINTF("max segsize: %d\n", UGETW(ued->wMaxSegmentSize));
718 if (UGETW(ued->wMaxSegmentSize) >= (ETHER_MAX_LEN - ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN))
719 sc->sc_flags |= CDCE_FLAG_VLAN;
720
721 error = usbd_req_get_string_any(uaa->device, NULL,
722 eaddr_str, sizeof(eaddr_str), ued->iMacAddress);
723 }
724
725 if (error) {
726 /* fake MAC address */
727
728 device_printf(dev, "faking MAC address\n");
729 seed = ticks;
730 sc->sc_ue.ue_eaddr[0] = 0x2a;
731 memcpy(&sc->sc_ue.ue_eaddr[1], &seed, sizeof(uint32_t));
732 sc->sc_ue.ue_eaddr[5] = device_get_unit(dev);
733
734 } else {
735 memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr));
736
737 for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) {
738 char c = eaddr_str[i];
739
740 if ('0' <= c && c <= '9')
741 c -= '0';
742 else if (c != 0)
743 c -= 'A' - 10;
744 else
745 break;
746
747 c &= 0xf;
748
749 if ((i & 1) == 0)
750 c <<= 4;
751 sc->sc_ue.ue_eaddr[i / 2] |= c;
752 }
753
754 if (uaa->usb_mode == USB_MODE_DEVICE) {
755 /*
756 * Do not use the same MAC address like the peer !
757 */
758 sc->sc_ue.ue_eaddr[5] ^= 0xFF;
759 }
760 }
761
762 ue->ue_sc = sc;
763 ue->ue_dev = dev;
764 ue->ue_udev = uaa->device;
765 ue->ue_mtx = &sc->sc_mtx;
766 ue->ue_methods = &cdce_ue_methods;
767
768 error = uether_ifattach(ue);
769 if (error) {
770 device_printf(dev, "could not attach interface\n");
771 goto detach;
772 }
773 return (0); /* success */
774
775 detach:
776 cdce_detach(dev);
777 return (ENXIO); /* failure */
778 }
779
780 static int
cdce_detach(device_t dev)781 cdce_detach(device_t dev)
782 {
783 struct cdce_softc *sc = device_get_softc(dev);
784 struct usb_ether *ue = &sc->sc_ue;
785
786 /* stop all USB transfers first */
787 usbd_transfer_unsetup(sc->sc_xfer, CDCE_N_TRANSFER);
788 uether_ifdetach(ue);
789 mtx_destroy(&sc->sc_mtx);
790
791 ifmedia_removeall(&sc->sc_media);
792
793 return (0);
794 }
795
796 static void
cdce_start(struct usb_ether * ue)797 cdce_start(struct usb_ether *ue)
798 {
799 struct cdce_softc *sc = uether_getsc(ue);
800
801 /*
802 * Start the USB transfers, if not already started:
803 */
804 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_TX]);
805 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_RX]);
806 }
807
808 static int
cdce_ioctl(if_t ifp,u_long command,caddr_t data)809 cdce_ioctl(if_t ifp, u_long command, caddr_t data)
810 {
811 struct usb_ether *ue = if_getsoftc(ifp);
812 struct cdce_softc *sc = uether_getsc(ue);
813 struct ifreq *ifr = (struct ifreq *)data;
814 int error;
815
816 error = 0;
817
818 switch(command) {
819 case SIOCGIFMEDIA:
820 case SIOCSIFMEDIA:
821 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command);
822 break;
823 default:
824 error = uether_ioctl(ifp, command, data);
825 break;
826 }
827
828 return (error);
829 }
830
831 static void
cdce_free_queue(struct mbuf ** ppm,uint8_t n)832 cdce_free_queue(struct mbuf **ppm, uint8_t n)
833 {
834 uint8_t x;
835 for (x = 0; x != n; x++) {
836 if (ppm[x] != NULL) {
837 m_freem(ppm[x]);
838 ppm[x] = NULL;
839 }
840 }
841 }
842
843 static int
cdce_media_change_cb(if_t ifp)844 cdce_media_change_cb(if_t ifp)
845 {
846
847 return (EOPNOTSUPP);
848 }
849
850 static void
cdce_media_status_cb(if_t ifp,struct ifmediareq * ifmr)851 cdce_media_status_cb(if_t ifp, struct ifmediareq *ifmr)
852 {
853
854 if ((if_getflags(ifp) & IFF_UP) == 0)
855 return;
856
857 ifmr->ifm_active = IFM_ETHER;
858 ifmr->ifm_status = IFM_AVALID;
859 ifmr->ifm_status |=
860 if_getlinkstate(ifp) == LINK_STATE_UP ? IFM_ACTIVE : 0;
861 }
862
863 static void
cdce_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)864 cdce_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
865 {
866 struct cdce_softc *sc = usbd_xfer_softc(xfer);
867 if_t ifp = uether_getifp(&sc->sc_ue);
868 struct mbuf *m;
869 struct mbuf *mt;
870 uint32_t crc;
871 uint8_t x;
872 int actlen, aframes;
873
874 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
875
876 DPRINTFN(1, "\n");
877
878 switch (USB_GET_STATE(xfer)) {
879 case USB_ST_TRANSFERRED:
880 DPRINTFN(11, "transfer complete: %u bytes in %u frames\n",
881 actlen, aframes);
882
883 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
884
885 /* free all previous TX buffers */
886 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX);
887
888 /* FALLTHROUGH */
889 case USB_ST_SETUP:
890 tr_setup:
891 for (x = 0; x != CDCE_FRAMES_MAX; x++) {
892 m = if_dequeue(ifp);
893
894 if (m == NULL)
895 break;
896
897 if (sc->sc_flags & CDCE_FLAG_ZAURUS) {
898 /*
899 * Zaurus wants a 32-bit CRC appended
900 * to every frame
901 */
902
903 crc = cdce_m_crc32(m, 0, m->m_pkthdr.len);
904 crc = htole32(crc);
905
906 if (!m_append(m, 4, (void *)&crc)) {
907 m_freem(m);
908 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
909 continue;
910 }
911 }
912 if (m->m_len != m->m_pkthdr.len) {
913 mt = m_defrag(m, M_NOWAIT);
914 if (mt == NULL) {
915 m_freem(m);
916 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
917 continue;
918 }
919 m = mt;
920 }
921 if (m->m_pkthdr.len > MCLBYTES) {
922 m->m_pkthdr.len = MCLBYTES;
923 }
924 sc->sc_tx_buf[x] = m;
925 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len);
926
927 /*
928 * If there's a BPF listener, bounce a copy of
929 * this frame to him:
930 */
931 BPF_MTAP(ifp, m);
932 }
933 if (x != 0) {
934 usbd_xfer_set_frames(xfer, x);
935
936 usbd_transfer_submit(xfer);
937 }
938 break;
939
940 default: /* Error */
941 DPRINTFN(11, "transfer error, %s\n",
942 usbd_errstr(error));
943
944 /* free all previous TX buffers */
945 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX);
946
947 /* count output errors */
948 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
949
950 if (error != USB_ERR_CANCELLED) {
951 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
952 /* try to clear stall first */
953 usbd_xfer_set_stall(xfer);
954 }
955 goto tr_setup;
956 }
957 break;
958 }
959 }
960
961 static int32_t
cdce_m_crc32_cb(void * arg,void * src,uint32_t count)962 cdce_m_crc32_cb(void *arg, void *src, uint32_t count)
963 {
964 uint32_t *p_crc = arg;
965
966 *p_crc = crc32_raw(src, count, *p_crc);
967 return (0);
968 }
969
970 static uint32_t
cdce_m_crc32(struct mbuf * m,uint32_t src_offset,uint32_t src_len)971 cdce_m_crc32(struct mbuf *m, uint32_t src_offset, uint32_t src_len)
972 {
973 uint32_t crc = 0xFFFFFFFF;
974
975 (void)m_apply(m, src_offset, src_len, cdce_m_crc32_cb, &crc);
976 return (crc ^ 0xFFFFFFFF);
977 }
978
979 static void
cdce_init(struct usb_ether * ue)980 cdce_init(struct usb_ether *ue)
981 {
982 struct cdce_softc *sc = uether_getsc(ue);
983 if_t ifp = uether_getifp(ue);
984
985 CDCE_LOCK_ASSERT(sc, MA_OWNED);
986
987 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
988
989 /* start interrupt transfer */
990 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_RX]);
991 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]);
992
993 /*
994 * Stall data write direction, which depends on USB mode.
995 *
996 * Some USB host stacks (e.g. Mac OS X) don't clears stall
997 * bit as it should, so set it in our host mode only.
998 */
999 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST)
1000 usbd_xfer_set_stall(sc->sc_xfer[CDCE_BULK_TX]);
1001
1002 /* start data transfers */
1003 cdce_start(ue);
1004 }
1005
1006 static void
cdce_stop(struct usb_ether * ue)1007 cdce_stop(struct usb_ether *ue)
1008 {
1009 struct cdce_softc *sc = uether_getsc(ue);
1010 if_t ifp = uether_getifp(ue);
1011
1012 CDCE_LOCK_ASSERT(sc, MA_OWNED);
1013
1014 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
1015
1016 /*
1017 * stop all the transfers, if not already stopped:
1018 */
1019 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]);
1020 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]);
1021 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]);
1022 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]);
1023 }
1024
1025 static void
cdce_setmulti(struct usb_ether * ue)1026 cdce_setmulti(struct usb_ether *ue)
1027 {
1028
1029 cdce_set_filter(ue);
1030 }
1031
1032 static void
cdce_setpromisc(struct usb_ether * ue)1033 cdce_setpromisc(struct usb_ether *ue)
1034 {
1035
1036 cdce_set_filter(ue);
1037 }
1038
1039 static void
cdce_set_filter(struct usb_ether * ue)1040 cdce_set_filter(struct usb_ether *ue)
1041 {
1042 struct cdce_softc *sc = uether_getsc(ue);
1043 if_t ifp = uether_getifp(ue);
1044 struct usb_device_request req;
1045 uint16_t value;
1046
1047 value = CDC_PACKET_TYPE_DIRECTED | CDC_PACKET_TYPE_BROADCAST;
1048 if (if_getflags(ifp) & IFF_PROMISC)
1049 value |= CDC_PACKET_TYPE_PROMISC;
1050 if (if_getflags(ifp) & IFF_ALLMULTI)
1051 value |= CDC_PACKET_TYPE_ALL_MULTICAST;
1052
1053 req.bmRequestType = UT_CLASS | UT_INTERFACE;
1054 req.bRequest = CDC_SET_ETHERNET_PACKET_FILTER;
1055 USETW(req.wValue, value);
1056 req.wIndex[0] = sc->sc_ifaces_index[1];
1057 req.wIndex[1] = 0;
1058 USETW(req.wLength, 0);
1059
1060 /*
1061 * Function below will drop the sc mutex.
1062 * We can do that since we're called from a separate task,
1063 * that simply wraps the setpromisc/setmulti methods.
1064 */
1065 usbd_do_request(sc->sc_ue.ue_udev, &sc->sc_mtx, &req, NULL);
1066 }
1067
1068 static int
cdce_suspend(device_t dev)1069 cdce_suspend(device_t dev)
1070 {
1071 device_printf(dev, "Suspending\n");
1072 return (0);
1073 }
1074
1075 static int
cdce_resume(device_t dev)1076 cdce_resume(device_t dev)
1077 {
1078 device_printf(dev, "Resuming\n");
1079 return (0);
1080 }
1081
1082 static void
cdce_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)1083 cdce_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1084 {
1085 struct cdce_softc *sc = usbd_xfer_softc(xfer);
1086 struct mbuf *m;
1087 uint8_t x;
1088 int actlen;
1089 int aframes;
1090 int len;
1091
1092 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
1093
1094 switch (USB_GET_STATE(xfer)) {
1095 case USB_ST_TRANSFERRED:
1096
1097 DPRINTF("received %u bytes in %u frames\n", actlen, aframes);
1098
1099 for (x = 0; x != aframes; x++) {
1100 m = sc->sc_rx_buf[x];
1101 sc->sc_rx_buf[x] = NULL;
1102 len = usbd_xfer_frame_len(xfer, x);
1103
1104 /* Strip off CRC added by Zaurus, if any */
1105 if ((sc->sc_flags & CDCE_FLAG_ZAURUS) && len >= 14)
1106 len -= 4;
1107
1108 if (len < (int)sizeof(struct ether_header)) {
1109 m_freem(m);
1110 continue;
1111 }
1112 /* queue up mbuf */
1113 uether_rxmbuf(&sc->sc_ue, m, len);
1114 }
1115
1116 /* FALLTHROUGH */
1117 case USB_ST_SETUP:
1118 /*
1119 * TODO: Implement support for multi frame transfers,
1120 * when the USB hardware supports it.
1121 */
1122 for (x = 0; x != 1; x++) {
1123 if (sc->sc_rx_buf[x] == NULL) {
1124 m = uether_newbuf();
1125 if (m == NULL)
1126 goto tr_stall;
1127 sc->sc_rx_buf[x] = m;
1128 } else {
1129 m = sc->sc_rx_buf[x];
1130 }
1131
1132 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len);
1133 }
1134 /* set number of frames and start hardware */
1135 usbd_xfer_set_frames(xfer, x);
1136 usbd_transfer_submit(xfer);
1137 /* flush any received frames */
1138 uether_rxflush(&sc->sc_ue);
1139 break;
1140
1141 default: /* Error */
1142 DPRINTF("error = %s\n",
1143 usbd_errstr(error));
1144
1145 if (error != USB_ERR_CANCELLED) {
1146 tr_stall:
1147 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
1148 /* try to clear stall first */
1149 usbd_xfer_set_stall(xfer);
1150 usbd_xfer_set_frames(xfer, 0);
1151 usbd_transfer_submit(xfer);
1152 }
1153 break;
1154 }
1155
1156 /* need to free the RX-mbufs when we are cancelled */
1157 cdce_free_queue(sc->sc_rx_buf, CDCE_FRAMES_MAX);
1158 break;
1159 }
1160 }
1161
1162 static void
cdce_intr_read_callback(struct usb_xfer * xfer,usb_error_t error)1163 cdce_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
1164 {
1165 u_char buf[CDCE_IND_SIZE_MAX];
1166 struct usb_cdc_notification ucn;
1167 struct cdce_softc *sc;
1168 if_t ifp;
1169 struct usb_page_cache *pc;
1170 int off, actlen;
1171 uint32_t downrate, uprate;
1172
1173 sc = usbd_xfer_softc(xfer);
1174 ifp = uether_getifp(&sc->sc_ue);
1175 pc = usbd_xfer_get_frame(xfer, 0);
1176
1177 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1178
1179 switch (USB_GET_STATE(xfer)) {
1180 case USB_ST_TRANSFERRED:
1181 if (USB_DEBUG_VAR)
1182 usbd_copy_out(pc, 0, buf, MIN(actlen, sizeof buf));
1183 DPRINTF("Received %d bytes: %*D\n", actlen,
1184 (int)MIN(actlen, sizeof buf), buf, "");
1185
1186 off = 0;
1187 while (actlen - off >= UCDC_NOTIFICATION_LENGTH) {
1188 usbd_copy_out(pc, off, &ucn, UCDC_NOTIFICATION_LENGTH);
1189
1190 do {
1191 if (ucn.bmRequestType != 0xa1)
1192 break;
1193
1194 switch (ucn.bNotification) {
1195 case UCDC_N_NETWORK_CONNECTION:
1196 DPRINTF("changing link state: %d\n",
1197 UGETW(ucn.wValue));
1198 if_link_state_change(ifp,
1199 UGETW(ucn.wValue) ? LINK_STATE_UP :
1200 LINK_STATE_DOWN);
1201 break;
1202
1203 case UCDC_N_CONNECTION_SPEED_CHANGE:
1204 if (UGETW(ucn.wLength) != 8)
1205 break;
1206
1207 usbd_copy_out(pc, off +
1208 UCDC_NOTIFICATION_LENGTH,
1209 &ucn.data, UGETW(ucn.wLength));
1210 downrate = UGETDW(ucn.data);
1211 uprate = UGETDW(ucn.data);
1212 if (downrate != uprate)
1213 break;
1214
1215 /* set rate */
1216 DPRINTF("changing baudrate: %u\n",
1217 downrate);
1218 if_setbaudrate(ifp, downrate);
1219 break;
1220
1221 default:
1222 break;
1223 }
1224 } while (0);
1225
1226 off += UCDC_NOTIFICATION_LENGTH + UGETW(ucn.wLength);
1227 }
1228
1229 /* FALLTHROUGH */
1230 case USB_ST_SETUP:
1231 tr_setup:
1232 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1233 usbd_transfer_submit(xfer);
1234 break;
1235
1236 default: /* Error */
1237 if (error != USB_ERR_CANCELLED) {
1238 /* start clear stall */
1239 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST)
1240 usbd_xfer_set_stall(xfer);
1241 goto tr_setup;
1242 }
1243 break;
1244 }
1245 }
1246
1247 static void
cdce_intr_write_callback(struct usb_xfer * xfer,usb_error_t error)1248 cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error)
1249 {
1250 struct cdce_softc *sc = usbd_xfer_softc(xfer);
1251 struct usb_cdc_notification req;
1252 struct usb_page_cache *pc;
1253 uint32_t speed;
1254 int actlen;
1255
1256 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
1257
1258 switch (USB_GET_STATE(xfer)) {
1259 case USB_ST_TRANSFERRED:
1260
1261 DPRINTF("Transferred %d bytes\n", actlen);
1262
1263 switch (sc->sc_notify_state) {
1264 case CDCE_NOTIFY_NETWORK_CONNECTION:
1265 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE;
1266 break;
1267 case CDCE_NOTIFY_SPEED_CHANGE:
1268 sc->sc_notify_state = CDCE_NOTIFY_DONE;
1269 break;
1270 default:
1271 break;
1272 }
1273
1274 /* FALLTHROUGH */
1275 case USB_ST_SETUP:
1276 tr_setup:
1277 /*
1278 * Inform host about connection. Required according to USB CDC
1279 * specification and communicating to Mac OS X USB host stack.
1280 * Some of the values seems ignored by Mac OS X though.
1281 */
1282 if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) {
1283 req.bmRequestType = UCDC_NOTIFICATION;
1284 req.bNotification = UCDC_N_NETWORK_CONNECTION;
1285 req.wIndex[0] = sc->sc_ifaces_index[1];
1286 req.wIndex[1] = 0;
1287 USETW(req.wValue, 1); /* Connected */
1288 USETW(req.wLength, 0);
1289
1290 pc = usbd_xfer_get_frame(xfer, 0);
1291 usbd_copy_in(pc, 0, &req, sizeof(req));
1292 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
1293 usbd_xfer_set_frames(xfer, 1);
1294 usbd_transfer_submit(xfer);
1295
1296 } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) {
1297 req.bmRequestType = UCDC_NOTIFICATION;
1298 req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE;
1299 req.wIndex[0] = sc->sc_ifaces_index[1];
1300 req.wIndex[1] = 0;
1301 USETW(req.wValue, 0);
1302 USETW(req.wLength, 8);
1303
1304 /* Peak theoretical bulk trasfer rate in bits/s */
1305 if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL)
1306 speed = (13 * 512 * 8 * 1000 * 8);
1307 else
1308 speed = (19 * 64 * 1 * 1000 * 8);
1309
1310 USETDW(req.data + 0, speed); /* Upstream bit rate */
1311 USETDW(req.data + 4, speed); /* Downstream bit rate */
1312
1313 pc = usbd_xfer_get_frame(xfer, 0);
1314 usbd_copy_in(pc, 0, &req, sizeof(req));
1315 usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
1316 usbd_xfer_set_frames(xfer, 1);
1317 usbd_transfer_submit(xfer);
1318 }
1319 break;
1320
1321 default: /* Error */
1322 if (error != USB_ERR_CANCELLED) {
1323 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
1324 /* start clear stall */
1325 usbd_xfer_set_stall(xfer);
1326 }
1327 goto tr_setup;
1328 }
1329 break;
1330 }
1331 }
1332
1333 static int
cdce_handle_request(device_t dev,const void * preq,void ** pptr,uint16_t * plen,uint16_t offset,uint8_t * pstate)1334 cdce_handle_request(device_t dev,
1335 const void *preq, void **pptr, uint16_t *plen,
1336 uint16_t offset, uint8_t *pstate)
1337 {
1338 struct cdce_softc *sc = device_get_softc(dev);
1339 const struct usb_device_request *req = preq;
1340 uint8_t is_complete = *pstate;
1341
1342 /*
1343 * When Mac OS X resumes after suspending it expects
1344 * to be notified again after this request.
1345 */
1346 if (req->bmRequestType == UT_WRITE_CLASS_INTERFACE && \
1347 req->bRequest == UCDC_NCM_SET_ETHERNET_PACKET_FILTER) {
1348 if (is_complete == 1) {
1349 mtx_lock(&sc->sc_mtx);
1350 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE;
1351 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]);
1352 mtx_unlock(&sc->sc_mtx);
1353 }
1354
1355 return (0);
1356 }
1357
1358 return (ENXIO); /* use builtin handler */
1359 }
1360
1361 #if CDCE_HAVE_NCM
1362 static void
cdce_ncm_tx_zero(struct usb_page_cache * pc,uint32_t start,uint32_t end)1363 cdce_ncm_tx_zero(struct usb_page_cache *pc,
1364 uint32_t start, uint32_t end)
1365 {
1366 if (start >= CDCE_NCM_TX_MAXLEN)
1367 return;
1368 if (end > CDCE_NCM_TX_MAXLEN)
1369 end = CDCE_NCM_TX_MAXLEN;
1370
1371 usbd_frame_zero(pc, start, end - start);
1372 }
1373
1374 static uint8_t
cdce_ncm_fill_tx_frames(struct usb_xfer * xfer,uint8_t index)1375 cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index)
1376 {
1377 struct cdce_softc *sc = usbd_xfer_softc(xfer);
1378 if_t ifp = uether_getifp(&sc->sc_ue);
1379 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index);
1380 struct mbuf *m;
1381 uint32_t rem;
1382 uint32_t offset;
1383 uint32_t last_offset;
1384 uint16_t n;
1385 uint8_t retval;
1386
1387 usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index);
1388
1389 offset = sizeof(sc->sc_ncm.hdr) +
1390 sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp);
1391
1392 /* Store last valid offset before alignment */
1393 last_offset = offset;
1394
1395 /* Align offset */
1396 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder,
1397 offset, sc->sc_ncm.tx_modulus);
1398
1399 /* Zero pad */
1400 cdce_ncm_tx_zero(pc, last_offset, offset);
1401
1402 /* buffer full */
1403 retval = 2;
1404
1405 for (n = 0; n != sc->sc_ncm.tx_nframe; n++) {
1406 /* check if end of transmit buffer is reached */
1407
1408 if (offset >= sc->sc_ncm.tx_max)
1409 break;
1410
1411 /* compute maximum buffer size */
1412
1413 rem = sc->sc_ncm.tx_max - offset;
1414
1415 m = if_dequeue(ifp);
1416
1417 if (m == NULL) {
1418 /* buffer not full */
1419 retval = 1;
1420 break;
1421 }
1422
1423 if (m->m_pkthdr.len > (int)rem) {
1424 if (n == 0) {
1425 /* The frame won't fit in our buffer */
1426 DPRINTFN(1, "Frame too big to be transmitted!\n");
1427 m_freem(m);
1428 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1429 n--;
1430 continue;
1431 }
1432 /* Wait till next buffer becomes ready */
1433 if_sendq_prepend(ifp, m);
1434 break;
1435 }
1436 usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len);
1437
1438 USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len);
1439 USETW(sc->sc_ncm.dp[n].wFrameIndex, offset);
1440
1441 /* Update offset */
1442 offset += m->m_pkthdr.len;
1443
1444 /* Store last valid offset before alignment */
1445 last_offset = offset;
1446
1447 /* Align offset */
1448 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder,
1449 offset, sc->sc_ncm.tx_modulus);
1450
1451 /* Zero pad */
1452 cdce_ncm_tx_zero(pc, last_offset, offset);
1453
1454 /*
1455 * If there's a BPF listener, bounce a copy
1456 * of this frame to him:
1457 */
1458 BPF_MTAP(ifp, m);
1459
1460 /* Free mbuf */
1461
1462 m_freem(m);
1463
1464 /* Pre-increment interface counter */
1465
1466 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
1467 }
1468
1469 if (n == 0)
1470 return (0);
1471
1472 rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4);
1473
1474 USETW(sc->sc_ncm.dpt.wLength, rem);
1475
1476 /* zero the rest of the data pointer entries */
1477 for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) {
1478 USETW(sc->sc_ncm.dp[n].wFrameLength, 0);
1479 USETW(sc->sc_ncm.dp[n].wFrameIndex, 0);
1480 }
1481
1482 offset = last_offset;
1483
1484 /* Align offset */
1485 offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN);
1486
1487 /* Optimise, save bandwidth and force short termination */
1488 if (offset >= sc->sc_ncm.tx_max)
1489 offset = sc->sc_ncm.tx_max;
1490 else
1491 offset ++;
1492
1493 /* Zero pad */
1494 cdce_ncm_tx_zero(pc, last_offset, offset);
1495
1496 /* set frame length */
1497 usbd_xfer_set_frame_len(xfer, index, offset);
1498
1499 /* Fill out 16-bit header */
1500 sc->sc_ncm.hdr.dwSignature[0] = 'N';
1501 sc->sc_ncm.hdr.dwSignature[1] = 'C';
1502 sc->sc_ncm.hdr.dwSignature[2] = 'M';
1503 sc->sc_ncm.hdr.dwSignature[3] = 'H';
1504 USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr));
1505 USETW(sc->sc_ncm.hdr.wBlockLength, offset);
1506 USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq);
1507 USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr));
1508
1509 sc->sc_ncm.tx_seq++;
1510
1511 /* Fill out 16-bit frame table header */
1512 sc->sc_ncm.dpt.dwSignature[0] = 'N';
1513 sc->sc_ncm.dpt.dwSignature[1] = 'C';
1514 sc->sc_ncm.dpt.dwSignature[2] = 'M';
1515 sc->sc_ncm.dpt.dwSignature[3] = '0';
1516 USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */
1517
1518 usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr));
1519 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt),
1520 sizeof(sc->sc_ncm.dpt));
1521 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt),
1522 &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp));
1523 return (retval);
1524 }
1525
1526 static void
cdce_ncm_bulk_write_callback(struct usb_xfer * xfer,usb_error_t error)1527 cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1528 {
1529 struct cdce_softc *sc = usbd_xfer_softc(xfer);
1530 if_t ifp = uether_getifp(&sc->sc_ue);
1531 uint16_t x;
1532 uint8_t temp;
1533 int actlen;
1534 int aframes;
1535
1536 switch (USB_GET_STATE(xfer)) {
1537 case USB_ST_TRANSFERRED:
1538
1539 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
1540
1541 DPRINTFN(10, "transfer complete: "
1542 "%u bytes in %u frames\n", actlen, aframes);
1543
1544 case USB_ST_SETUP:
1545 for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) {
1546 temp = cdce_ncm_fill_tx_frames(xfer, x);
1547 if (temp == 0)
1548 break;
1549 if (temp == 1) {
1550 x++;
1551 break;
1552 }
1553 }
1554
1555 if (x != 0) {
1556 #ifdef USB_DEBUG
1557 usbd_xfer_set_interval(xfer, cdce_tx_interval);
1558 #endif
1559 usbd_xfer_set_frames(xfer, x);
1560 usbd_transfer_submit(xfer);
1561 }
1562 break;
1563
1564 default: /* Error */
1565 DPRINTFN(10, "Transfer error: %s\n",
1566 usbd_errstr(error));
1567
1568 /* update error counter */
1569 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1570
1571 if (error != USB_ERR_CANCELLED) {
1572 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
1573 /* try to clear stall first */
1574 usbd_xfer_set_stall(xfer);
1575 usbd_xfer_set_frames(xfer, 0);
1576 usbd_transfer_submit(xfer);
1577 }
1578 }
1579 break;
1580 }
1581 }
1582
1583 static void
cdce_ncm_bulk_read_callback(struct usb_xfer * xfer,usb_error_t error)1584 cdce_ncm_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1585 {
1586 struct cdce_softc *sc = usbd_xfer_softc(xfer);
1587 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0);
1588 if_t ifp = uether_getifp(&sc->sc_ue);
1589 struct mbuf *m;
1590 int sumdata __usbdebug_used;
1591 int sumlen;
1592 int actlen;
1593 int aframes;
1594 int temp;
1595 int nframes;
1596 int x;
1597 int offset;
1598
1599 switch (USB_GET_STATE(xfer)) {
1600 case USB_ST_TRANSFERRED:
1601
1602 usbd_xfer_status(xfer, &actlen, &sumlen, &aframes, NULL);
1603
1604 DPRINTFN(1, "received %u bytes in %u frames\n",
1605 actlen, aframes);
1606
1607 if (actlen < (int)(sizeof(sc->sc_ncm.hdr) +
1608 sizeof(sc->sc_ncm.dpt))) {
1609 DPRINTFN(1, "frame too short\n");
1610 goto tr_setup;
1611 }
1612 usbd_copy_out(pc, 0, &(sc->sc_ncm.hdr),
1613 sizeof(sc->sc_ncm.hdr));
1614
1615 if ((sc->sc_ncm.hdr.dwSignature[0] != 'N') ||
1616 (sc->sc_ncm.hdr.dwSignature[1] != 'C') ||
1617 (sc->sc_ncm.hdr.dwSignature[2] != 'M') ||
1618 (sc->sc_ncm.hdr.dwSignature[3] != 'H')) {
1619 DPRINTFN(1, "invalid HDR signature: "
1620 "0x%02x:0x%02x:0x%02x:0x%02x\n",
1621 sc->sc_ncm.hdr.dwSignature[0],
1622 sc->sc_ncm.hdr.dwSignature[1],
1623 sc->sc_ncm.hdr.dwSignature[2],
1624 sc->sc_ncm.hdr.dwSignature[3]);
1625 goto tr_stall;
1626 }
1627 temp = UGETW(sc->sc_ncm.hdr.wBlockLength);
1628 if (temp > sumlen) {
1629 DPRINTFN(1, "unsupported block length %u/%u\n",
1630 temp, sumlen);
1631 goto tr_stall;
1632 }
1633 temp = UGETW(sc->sc_ncm.hdr.wDptIndex);
1634 if ((int)(temp + sizeof(sc->sc_ncm.dpt)) > actlen) {
1635 DPRINTFN(1, "invalid DPT index: 0x%04x\n", temp);
1636 goto tr_stall;
1637 }
1638 usbd_copy_out(pc, temp, &(sc->sc_ncm.dpt),
1639 sizeof(sc->sc_ncm.dpt));
1640
1641 if ((sc->sc_ncm.dpt.dwSignature[0] != 'N') ||
1642 (sc->sc_ncm.dpt.dwSignature[1] != 'C') ||
1643 (sc->sc_ncm.dpt.dwSignature[2] != 'M') ||
1644 (sc->sc_ncm.dpt.dwSignature[3] != '0')) {
1645 DPRINTFN(1, "invalid DPT signature"
1646 "0x%02x:0x%02x:0x%02x:0x%02x\n",
1647 sc->sc_ncm.dpt.dwSignature[0],
1648 sc->sc_ncm.dpt.dwSignature[1],
1649 sc->sc_ncm.dpt.dwSignature[2],
1650 sc->sc_ncm.dpt.dwSignature[3]);
1651 goto tr_stall;
1652 }
1653 nframes = UGETW(sc->sc_ncm.dpt.wLength) / 4;
1654
1655 /* Subtract size of header and last zero padded entry */
1656 if (nframes >= (2 + 1))
1657 nframes -= (2 + 1);
1658 else
1659 nframes = 0;
1660
1661 DPRINTFN(1, "nframes = %u\n", nframes);
1662
1663 temp += sizeof(sc->sc_ncm.dpt);
1664
1665 if ((temp + (4 * nframes)) > actlen)
1666 goto tr_stall;
1667
1668 if (nframes > CDCE_NCM_SUBFRAMES_MAX) {
1669 DPRINTFN(1, "Truncating number of frames from %u to %u\n",
1670 nframes, CDCE_NCM_SUBFRAMES_MAX);
1671 nframes = CDCE_NCM_SUBFRAMES_MAX;
1672 }
1673 usbd_copy_out(pc, temp, &(sc->sc_ncm.dp), (4 * nframes));
1674
1675 sumdata = 0;
1676
1677 for (x = 0; x != nframes; x++) {
1678 offset = UGETW(sc->sc_ncm.dp[x].wFrameIndex);
1679 temp = UGETW(sc->sc_ncm.dp[x].wFrameLength);
1680
1681 if ((offset == 0) ||
1682 (temp < (int)sizeof(struct ether_header)) ||
1683 (temp > (MCLBYTES - ETHER_ALIGN))) {
1684 DPRINTFN(1, "NULL frame detected at %d\n", x);
1685 m = NULL;
1686 /* silently ignore this frame */
1687 continue;
1688 } else if ((offset + temp) > actlen) {
1689 DPRINTFN(1, "invalid frame "
1690 "detected at %d\n", x);
1691 m = NULL;
1692 /* silently ignore this frame */
1693 continue;
1694 } else if (temp > (int)(MHLEN - ETHER_ALIGN)) {
1695 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1696 } else {
1697 m = m_gethdr(M_NOWAIT, MT_DATA);
1698 }
1699
1700 DPRINTFN(16, "frame %u, offset = %u, length = %u \n",
1701 x, offset, temp);
1702
1703 /* check if we have a buffer */
1704 if (m) {
1705 m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN;
1706 m_adj(m, ETHER_ALIGN);
1707
1708 usbd_copy_out(pc, offset, m->m_data, temp);
1709
1710 /* enqueue */
1711 uether_rxmbuf(&sc->sc_ue, m, temp);
1712
1713 sumdata += temp;
1714 } else {
1715 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1716 }
1717 }
1718
1719 DPRINTFN(1, "Efficiency: %u/%u bytes\n", sumdata, actlen);
1720
1721 case USB_ST_SETUP:
1722 tr_setup:
1723 usbd_xfer_set_frame_len(xfer, 0, sc->sc_ncm.rx_max);
1724 usbd_xfer_set_frames(xfer, 1);
1725 usbd_transfer_submit(xfer);
1726 uether_rxflush(&sc->sc_ue); /* must be last */
1727 break;
1728
1729 default: /* Error */
1730 DPRINTFN(1, "error = %s\n",
1731 usbd_errstr(error));
1732
1733 if (error != USB_ERR_CANCELLED) {
1734 tr_stall:
1735 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
1736 /* try to clear stall first */
1737 usbd_xfer_set_stall(xfer);
1738 usbd_xfer_set_frames(xfer, 0);
1739 usbd_transfer_submit(xfer);
1740 }
1741 }
1742 break;
1743 }
1744 }
1745 #endif
1746