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/cdefs.h> 51 #include <sys/gsb_crc32.h> 52 #include <sys/eventhandler.h> 53 #include <sys/stdint.h> 54 #include <sys/stddef.h> 55 #include <sys/queue.h> 56 #include <sys/systm.h> 57 #include <sys/socket.h> 58 #include <sys/kernel.h> 59 #include <sys/bus.h> 60 #include <sys/module.h> 61 #include <sys/lock.h> 62 #include <sys/mutex.h> 63 #include <sys/condvar.h> 64 #include <sys/sysctl.h> 65 #include <sys/sx.h> 66 #include <sys/unistd.h> 67 #include <sys/callout.h> 68 #include <sys/malloc.h> 69 #include <sys/priv.h> 70 71 #include <net/if.h> 72 #include <net/if_var.h> 73 74 #include <dev/usb/usb.h> 75 #include <dev/usb/usbdi.h> 76 #include <dev/usb/usbdi_util.h> 77 #include <dev/usb/usb_cdc.h> 78 #include "usbdevs.h" 79 80 #define USB_DEBUG_VAR cdce_debug 81 #include <dev/usb/usb_debug.h> 82 #include <dev/usb/usb_process.h> 83 #include <dev/usb/usb_msctest.h> 84 #include "usb_if.h" 85 86 #include <dev/usb/net/usb_ethernet.h> 87 #include <dev/usb/net/if_cdcereg.h> 88 89 static device_probe_t cdce_probe; 90 static device_attach_t cdce_attach; 91 static device_detach_t cdce_detach; 92 static device_suspend_t cdce_suspend; 93 static device_resume_t cdce_resume; 94 static usb_handle_request_t cdce_handle_request; 95 96 static usb_callback_t cdce_bulk_write_callback; 97 static usb_callback_t cdce_bulk_read_callback; 98 static usb_callback_t cdce_intr_read_callback; 99 static usb_callback_t cdce_intr_write_callback; 100 101 #if CDCE_HAVE_NCM 102 static usb_callback_t cdce_ncm_bulk_write_callback; 103 static usb_callback_t cdce_ncm_bulk_read_callback; 104 #endif 105 106 static uether_fn_t cdce_attach_post; 107 static uether_fn_t cdce_init; 108 static uether_fn_t cdce_stop; 109 static uether_fn_t cdce_start; 110 static uether_fn_t cdce_setmulti; 111 static uether_fn_t cdce_setpromisc; 112 static int cdce_attach_post_sub(struct usb_ether *); 113 static int cdce_ioctl(if_t, u_long, caddr_t); 114 static int cdce_media_change_cb(if_t); 115 static void cdce_media_status_cb(if_t, struct ifmediareq *); 116 117 static uint32_t cdce_m_crc32(struct mbuf *, uint32_t, uint32_t); 118 static void cdce_set_filter(struct usb_ether *); 119 120 #ifdef USB_DEBUG 121 static int cdce_debug = 0; 122 static int cdce_tx_interval = 0; 123 124 static SYSCTL_NODE(_hw_usb, OID_AUTO, cdce, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 125 "USB CDC-Ethernet"); 126 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, debug, CTLFLAG_RWTUN, &cdce_debug, 0, 127 "Debug level"); 128 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, interval, CTLFLAG_RWTUN, &cdce_tx_interval, 0, 129 "NCM transmit interval in ms"); 130 #else 131 #define cdce_debug 0 132 #endif 133 134 static const struct usb_config cdce_config[CDCE_N_TRANSFER] = { 135 [CDCE_BULK_RX] = { 136 .type = UE_BULK, 137 .endpoint = UE_ADDR_ANY, 138 .direction = UE_DIR_RX, 139 .if_index = 0, 140 .frames = CDCE_FRAMES_MAX, 141 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES), 142 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,.ext_buffer = 1,}, 143 .callback = cdce_bulk_read_callback, 144 .timeout = 0, /* no timeout */ 145 .usb_mode = USB_MODE_DUAL, /* both modes */ 146 }, 147 148 [CDCE_BULK_TX] = { 149 .type = UE_BULK, 150 .endpoint = UE_ADDR_ANY, 151 .direction = UE_DIR_TX, 152 .if_index = 0, 153 .frames = CDCE_FRAMES_MAX, 154 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES), 155 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,}, 156 .callback = cdce_bulk_write_callback, 157 .timeout = 10000, /* 10 seconds */ 158 .usb_mode = USB_MODE_DUAL, /* both modes */ 159 }, 160 161 [CDCE_INTR_RX] = { 162 .type = UE_INTERRUPT, 163 .endpoint = UE_ADDR_ANY, 164 .direction = UE_DIR_RX, 165 .if_index = 1, 166 .bufsize = CDCE_IND_SIZE_MAX, 167 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,}, 168 .callback = cdce_intr_read_callback, 169 .timeout = 0, 170 .usb_mode = USB_MODE_HOST, 171 }, 172 173 [CDCE_INTR_TX] = { 174 .type = UE_INTERRUPT, 175 .endpoint = UE_ADDR_ANY, 176 .direction = UE_DIR_TX, 177 .if_index = 1, 178 .bufsize = CDCE_IND_SIZE_MAX, 179 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,}, 180 .callback = cdce_intr_write_callback, 181 .timeout = 10000, /* 10 seconds */ 182 .usb_mode = USB_MODE_DEVICE, 183 }, 184 }; 185 186 #if CDCE_HAVE_NCM 187 static const struct usb_config cdce_ncm_config[CDCE_N_TRANSFER] = { 188 [CDCE_BULK_RX] = { 189 .type = UE_BULK, 190 .endpoint = UE_ADDR_ANY, 191 .direction = UE_DIR_RX, 192 .if_index = 0, 193 .frames = CDCE_NCM_RX_FRAMES_MAX, 194 .bufsize = (CDCE_NCM_RX_FRAMES_MAX * CDCE_NCM_RX_MAXLEN), 195 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,}, 196 .callback = cdce_ncm_bulk_read_callback, 197 .timeout = 0, /* no timeout */ 198 .usb_mode = USB_MODE_DUAL, /* both modes */ 199 }, 200 201 [CDCE_BULK_TX] = { 202 .type = UE_BULK, 203 .endpoint = UE_ADDR_ANY, 204 .direction = UE_DIR_TX, 205 .if_index = 0, 206 .frames = CDCE_NCM_TX_FRAMES_MAX, 207 .bufsize = (CDCE_NCM_TX_FRAMES_MAX * CDCE_NCM_TX_MAXLEN), 208 .flags = {.pipe_bof = 1,}, 209 .callback = cdce_ncm_bulk_write_callback, 210 .timeout = 10000, /* 10 seconds */ 211 .usb_mode = USB_MODE_DUAL, /* both modes */ 212 }, 213 214 [CDCE_INTR_RX] = { 215 .type = UE_INTERRUPT, 216 .endpoint = UE_ADDR_ANY, 217 .direction = UE_DIR_RX, 218 .if_index = 1, 219 .bufsize = CDCE_IND_SIZE_MAX, 220 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,}, 221 .callback = cdce_intr_read_callback, 222 .timeout = 0, 223 .usb_mode = USB_MODE_HOST, 224 }, 225 226 [CDCE_INTR_TX] = { 227 .type = UE_INTERRUPT, 228 .endpoint = UE_ADDR_ANY, 229 .direction = UE_DIR_TX, 230 .if_index = 1, 231 .bufsize = CDCE_IND_SIZE_MAX, 232 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,}, 233 .callback = cdce_intr_write_callback, 234 .timeout = 10000, /* 10 seconds */ 235 .usb_mode = USB_MODE_DEVICE, 236 }, 237 }; 238 #endif 239 240 static device_method_t cdce_methods[] = { 241 /* USB interface */ 242 DEVMETHOD(usb_handle_request, cdce_handle_request), 243 244 /* Device interface */ 245 DEVMETHOD(device_probe, cdce_probe), 246 DEVMETHOD(device_attach, cdce_attach), 247 DEVMETHOD(device_detach, cdce_detach), 248 DEVMETHOD(device_suspend, cdce_suspend), 249 DEVMETHOD(device_resume, cdce_resume), 250 251 DEVMETHOD_END 252 }; 253 254 static driver_t cdce_driver = { 255 .name = "cdce", 256 .methods = cdce_methods, 257 .size = sizeof(struct cdce_softc), 258 }; 259 260 static eventhandler_tag cdce_etag; 261 262 static int cdce_driver_loaded(struct module *, int, void *); 263 264 static const STRUCT_USB_HOST_ID cdce_switch_devs[] = { 265 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3272_INIT, MSC_EJECT_HUAWEI2)}, 266 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372v153_INIT, MSC_EJECT_HUAWEI2)}, 267 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372_INIT, MSC_EJECT_HUAWEI4)}, 268 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E5573Cs322_ECM, MSC_EJECT_HUAWEI3)}, 269 }; 270 271 static const STRUCT_USB_HOST_ID cdce_host_devs[] = { 272 {USB_VPI(USB_VENDOR_ACERLABS, USB_PRODUCT_ACERLABS_M5632, CDCE_FLAG_NO_UNION)}, 273 {USB_VPI(USB_VENDOR_AMBIT, USB_PRODUCT_AMBIT_NTL_250, CDCE_FLAG_NO_UNION)}, 274 {USB_VPI(USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQLINUX, CDCE_FLAG_NO_UNION)}, 275 {USB_VPI(USB_VENDOR_GMATE, USB_PRODUCT_GMATE_YP3X00, CDCE_FLAG_NO_UNION)}, 276 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 277 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN2, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 278 {USB_VPI(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2501, CDCE_FLAG_NO_UNION)}, 279 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5500, CDCE_FLAG_ZAURUS)}, 280 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5600, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 281 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLA300, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 282 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC700, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 283 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC750, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 284 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8156, 0)}, 285 286 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 287 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x16), 288 USB_DRIVER_INFO(0)}, 289 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 290 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x46), 291 USB_DRIVER_INFO(0)}, 292 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 293 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x76), 294 USB_DRIVER_INFO(0)}, 295 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 296 USB_IFACE_SUBCLASS(0x03), USB_IFACE_PROTOCOL(0x16), 297 USB_DRIVER_INFO(0)}, 298 }; 299 300 static const STRUCT_USB_DUAL_ID cdce_dual_devs[] = { 301 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL, 0)}, 302 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_MOBILE_DIRECT_LINE_MODEL, 0)}, 303 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_NETWORK_CONTROL_MODEL, 0)}, 304 }; 305 306 DRIVER_MODULE(cdce, uhub, cdce_driver, cdce_driver_loaded, NULL); 307 MODULE_VERSION(cdce, 1); 308 MODULE_DEPEND(cdce, uether, 1, 1, 1); 309 MODULE_DEPEND(cdce, usb, 1, 1, 1); 310 MODULE_DEPEND(cdce, ether, 1, 1, 1); 311 USB_PNP_DEVICE_INFO(cdce_switch_devs); 312 USB_PNP_HOST_INFO(cdce_host_devs); 313 USB_PNP_DUAL_INFO(cdce_dual_devs); 314 315 static const struct usb_ether_methods cdce_ue_methods = { 316 .ue_attach_post = cdce_attach_post, 317 .ue_attach_post_sub = cdce_attach_post_sub, 318 .ue_start = cdce_start, 319 .ue_init = cdce_init, 320 .ue_stop = cdce_stop, 321 .ue_setmulti = cdce_setmulti, 322 .ue_setpromisc = cdce_setpromisc, 323 }; 324 325 #if CDCE_HAVE_NCM 326 /*------------------------------------------------------------------------* 327 * cdce_ncm_init 328 * 329 * Return values: 330 * 0: Success 331 * Else: Failure 332 *------------------------------------------------------------------------*/ 333 static uint8_t 334 cdce_ncm_init(struct cdce_softc *sc) 335 { 336 struct usb_ncm_parameters temp; 337 struct usb_device_request req; 338 struct usb_ncm_func_descriptor *ufd; 339 uint8_t value[8]; 340 int err; 341 342 ufd = usbd_find_descriptor(sc->sc_ue.ue_udev, NULL, 343 sc->sc_ifaces_index[1], UDESC_CS_INTERFACE, 0xFF, 344 UCDC_NCM_FUNC_DESC_SUBTYPE, 0xFF); 345 346 /* verify length of NCM functional descriptor */ 347 if (ufd != NULL) { 348 if (ufd->bLength < sizeof(*ufd)) 349 ufd = NULL; 350 else 351 DPRINTFN(1, "Found NCM functional descriptor.\n"); 352 } 353 354 req.bmRequestType = UT_READ_CLASS_INTERFACE; 355 req.bRequest = UCDC_NCM_GET_NTB_PARAMETERS; 356 USETW(req.wValue, 0); 357 req.wIndex[0] = sc->sc_ifaces_index[1]; 358 req.wIndex[1] = 0; 359 USETW(req.wLength, sizeof(temp)); 360 361 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 362 &temp, 0, NULL, 1000 /* ms */); 363 if (err) 364 return (1); 365 366 /* Read correct set of parameters according to device mode */ 367 368 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 369 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbInMaxSize); 370 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbOutMaxSize); 371 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpOutPayloadRemainder); 372 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpOutDivisor); 373 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpOutAlignment); 374 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams); 375 } else { 376 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbOutMaxSize); 377 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbInMaxSize); 378 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpInPayloadRemainder); 379 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpInDivisor); 380 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpInAlignment); 381 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams); 382 } 383 384 /* Verify maximum receive length */ 385 386 if ((sc->sc_ncm.rx_max < 32) || 387 (sc->sc_ncm.rx_max > CDCE_NCM_RX_MAXLEN)) { 388 DPRINTFN(1, "Using default maximum receive length\n"); 389 sc->sc_ncm.rx_max = CDCE_NCM_RX_MAXLEN; 390 } 391 392 /* Verify maximum transmit length */ 393 394 if ((sc->sc_ncm.tx_max < 32) || 395 (sc->sc_ncm.tx_max > CDCE_NCM_TX_MAXLEN)) { 396 DPRINTFN(1, "Using default maximum transmit length\n"); 397 sc->sc_ncm.tx_max = CDCE_NCM_TX_MAXLEN; 398 } 399 400 /* 401 * Verify that the structure alignment is: 402 * - power of two 403 * - not greater than the maximum transmit length 404 * - not less than four bytes 405 */ 406 if ((sc->sc_ncm.tx_struct_align < 4) || 407 (sc->sc_ncm.tx_struct_align != 408 ((-sc->sc_ncm.tx_struct_align) & sc->sc_ncm.tx_struct_align)) || 409 (sc->sc_ncm.tx_struct_align >= sc->sc_ncm.tx_max)) { 410 DPRINTFN(1, "Using default other alignment: 4 bytes\n"); 411 sc->sc_ncm.tx_struct_align = 4; 412 } 413 414 /* 415 * Verify that the payload alignment is: 416 * - power of two 417 * - not greater than the maximum transmit length 418 * - not less than four bytes 419 */ 420 if ((sc->sc_ncm.tx_modulus < 4) || 421 (sc->sc_ncm.tx_modulus != 422 ((-sc->sc_ncm.tx_modulus) & sc->sc_ncm.tx_modulus)) || 423 (sc->sc_ncm.tx_modulus >= sc->sc_ncm.tx_max)) { 424 DPRINTFN(1, "Using default transmit modulus: 4 bytes\n"); 425 sc->sc_ncm.tx_modulus = 4; 426 } 427 428 /* Verify that the payload remainder */ 429 430 if ((sc->sc_ncm.tx_remainder >= sc->sc_ncm.tx_modulus)) { 431 DPRINTFN(1, "Using default transmit remainder: 0 bytes\n"); 432 sc->sc_ncm.tx_remainder = 0; 433 } 434 435 /* 436 * Offset the TX remainder so that IP packet payload starts at 437 * the tx_modulus. This is not too clear in the specification. 438 */ 439 440 sc->sc_ncm.tx_remainder = 441 (sc->sc_ncm.tx_remainder - ETHER_HDR_LEN) & 442 (sc->sc_ncm.tx_modulus - 1); 443 444 /* Verify max datagrams */ 445 446 if (sc->sc_ncm.tx_nframe == 0 || 447 sc->sc_ncm.tx_nframe > (CDCE_NCM_SUBFRAMES_MAX - 1)) { 448 DPRINTFN(1, "Using default max " 449 "subframes: %u units\n", CDCE_NCM_SUBFRAMES_MAX - 1); 450 /* need to reserve one entry for zero padding */ 451 sc->sc_ncm.tx_nframe = (CDCE_NCM_SUBFRAMES_MAX - 1); 452 } 453 454 /* Additional configuration, will fail in device side mode, which is OK. */ 455 456 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 457 req.bRequest = UCDC_NCM_SET_NTB_INPUT_SIZE; 458 USETW(req.wValue, 0); 459 req.wIndex[0] = sc->sc_ifaces_index[1]; 460 req.wIndex[1] = 0; 461 462 if (ufd != NULL && 463 (ufd->bmNetworkCapabilities & UCDC_NCM_CAP_MAX_DGRAM)) { 464 USETW(req.wLength, 8); 465 USETDW(value, sc->sc_ncm.rx_max); 466 USETW(value + 4, (CDCE_NCM_SUBFRAMES_MAX - 1)); 467 USETW(value + 6, 0); 468 } else { 469 USETW(req.wLength, 4); 470 USETDW(value, sc->sc_ncm.rx_max); 471 } 472 473 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 474 &value, 0, NULL, 1000 /* ms */); 475 if (err) { 476 DPRINTFN(1, "Setting input size " 477 "to %u failed.\n", sc->sc_ncm.rx_max); 478 } 479 480 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 481 req.bRequest = UCDC_NCM_SET_CRC_MODE; 482 USETW(req.wValue, 0); /* no CRC */ 483 req.wIndex[0] = sc->sc_ifaces_index[1]; 484 req.wIndex[1] = 0; 485 USETW(req.wLength, 0); 486 487 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 488 NULL, 0, NULL, 1000 /* ms */); 489 if (err) { 490 DPRINTFN(1, "Setting CRC mode to off failed.\n"); 491 } 492 493 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 494 req.bRequest = UCDC_NCM_SET_NTB_FORMAT; 495 USETW(req.wValue, 0); /* NTB-16 */ 496 req.wIndex[0] = sc->sc_ifaces_index[1]; 497 req.wIndex[1] = 0; 498 USETW(req.wLength, 0); 499 500 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 501 NULL, 0, NULL, 1000 /* ms */); 502 if (err) { 503 DPRINTFN(1, "Setting NTB format to 16-bit failed.\n"); 504 } 505 506 return (0); /* success */ 507 } 508 #endif 509 510 static void 511 cdce_test_autoinst(void *arg, struct usb_device *udev, 512 struct usb_attach_arg *uaa) 513 { 514 struct usb_interface *iface; 515 struct usb_interface_descriptor *id; 516 517 if (uaa->dev_state != UAA_DEV_READY) 518 return; 519 520 iface = usbd_get_iface(udev, 0); 521 if (iface == NULL) 522 return; 523 id = iface->idesc; 524 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 525 return; 526 if (usbd_lookup_id_by_uaa(cdce_switch_devs, sizeof(cdce_switch_devs), uaa)) 527 return; /* no device match */ 528 529 if (usb_msc_eject(udev, 0, USB_GET_DRIVER_INFO(uaa)) == 0) { 530 /* success, mark the udev as disappearing */ 531 uaa->dev_state = UAA_DEV_EJECTING; 532 } 533 } 534 535 static int 536 cdce_driver_loaded(struct module *mod, int what, void *arg) 537 { 538 switch (what) { 539 case MOD_LOAD: 540 /* register our autoinstall handler */ 541 cdce_etag = EVENTHANDLER_REGISTER(usb_dev_configured, 542 cdce_test_autoinst, NULL, EVENTHANDLER_PRI_ANY); 543 return (0); 544 case MOD_UNLOAD: 545 EVENTHANDLER_DEREGISTER(usb_dev_configured, cdce_etag); 546 return (0); 547 default: 548 return (EOPNOTSUPP); 549 } 550 } 551 552 static int 553 cdce_probe(device_t dev) 554 { 555 struct usb_attach_arg *uaa = device_get_ivars(dev); 556 int error; 557 558 error = usbd_lookup_id_by_uaa(cdce_host_devs, sizeof(cdce_host_devs), uaa); 559 if (error) 560 error = usbd_lookup_id_by_uaa(cdce_dual_devs, sizeof(cdce_dual_devs), uaa); 561 return (error); 562 } 563 564 static void 565 cdce_attach_post(struct usb_ether *ue) 566 { 567 /* no-op */ 568 return; 569 } 570 571 static int 572 cdce_attach_post_sub(struct usb_ether *ue) 573 { 574 struct cdce_softc *sc = uether_getsc(ue); 575 if_t ifp = uether_getifp(ue); 576 577 /* mostly copied from usb_ethernet.c */ 578 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 579 if_setstartfn(ifp, uether_start); 580 if_setioctlfn(ifp, cdce_ioctl); 581 if_setinitfn(ifp, uether_init); 582 if_setsendqlen(ifp, ifqmaxlen); 583 if_setsendqready(ifp); 584 585 if ((sc->sc_flags & CDCE_FLAG_VLAN) == CDCE_FLAG_VLAN) 586 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0); 587 588 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE, 0); 589 if_setcapenable(ifp, if_getcapabilities(ifp)); 590 591 ifmedia_init(&sc->sc_media, IFM_IMASK, cdce_media_change_cb, 592 cdce_media_status_cb); 593 ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL); 594 ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO); 595 sc->sc_media.ifm_media = sc->sc_media.ifm_cur->ifm_media; 596 CDCE_LOCK(sc); 597 cdce_set_filter(ue); 598 CDCE_UNLOCK(sc); 599 600 return 0; 601 } 602 603 static int 604 cdce_attach(device_t dev) 605 { 606 struct cdce_softc *sc = device_get_softc(dev); 607 struct usb_ether *ue = &sc->sc_ue; 608 struct usb_attach_arg *uaa = device_get_ivars(dev); 609 struct usb_interface *iface; 610 const struct usb_cdc_union_descriptor *ud; 611 const struct usb_interface_descriptor *id; 612 const struct usb_cdc_ethernet_descriptor *ued; 613 const struct usb_config *pcfg; 614 uint32_t seed; 615 int error; 616 uint8_t i; 617 uint8_t data_iface_no; 618 char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */ 619 620 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 621 sc->sc_ue.ue_udev = uaa->device; 622 623 device_set_usb_desc(dev); 624 625 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 626 627 ud = usbd_find_descriptor 628 (uaa->device, NULL, uaa->info.bIfaceIndex, 629 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_UNION, 0xFF); 630 631 if ((ud == NULL) || (ud->bLength < sizeof(*ud)) || 632 (sc->sc_flags & CDCE_FLAG_NO_UNION)) { 633 DPRINTFN(1, "No union descriptor!\n"); 634 sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex; 635 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 636 goto alloc_transfers; 637 } 638 data_iface_no = ud->bSlaveInterface[0]; 639 640 for (i = 0;; i++) { 641 iface = usbd_get_iface(uaa->device, i); 642 643 if (iface) { 644 id = usbd_get_interface_descriptor(iface); 645 646 if (id && (id->bInterfaceNumber == data_iface_no)) { 647 sc->sc_ifaces_index[0] = i; 648 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 649 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex); 650 break; 651 } 652 } else { 653 device_printf(dev, "no data interface found\n"); 654 goto detach; 655 } 656 } 657 658 /* 659 * <quote> 660 * 661 * The Data Class interface of a networking device shall have 662 * a minimum of two interface settings. The first setting 663 * (the default interface setting) includes no endpoints and 664 * therefore no networking traffic is exchanged whenever the 665 * default interface setting is selected. One or more 666 * additional interface settings are used for normal 667 * operation, and therefore each includes a pair of endpoints 668 * (one IN, and one OUT) to exchange network traffic. Select 669 * an alternate interface setting to initialize the network 670 * aspects of the device and to enable the exchange of 671 * network traffic. 672 * 673 * </quote> 674 * 675 * Some devices, most notably cable modems, include interface 676 * settings that have no IN or OUT endpoint, therefore loop 677 * through the list of all available interface settings 678 * looking for one with both IN and OUT endpoints. 679 */ 680 681 alloc_transfers: 682 683 pcfg = cdce_config; /* Default Configuration */ 684 685 for (i = 0; i != 32; i++) { 686 error = usbd_set_alt_interface_index(uaa->device, 687 sc->sc_ifaces_index[0], i); 688 if (error) 689 break; 690 #if CDCE_HAVE_NCM 691 if ((i == 0) && (cdce_ncm_init(sc) == 0)) 692 pcfg = cdce_ncm_config; 693 #endif 694 error = usbd_transfer_setup(uaa->device, 695 sc->sc_ifaces_index, sc->sc_xfer, 696 pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx); 697 698 if (error == 0) 699 break; 700 } 701 702 if (error || (i == 32)) { 703 device_printf(dev, "No valid alternate " 704 "setting found\n"); 705 goto detach; 706 } 707 708 ued = usbd_find_descriptor 709 (uaa->device, NULL, uaa->info.bIfaceIndex, 710 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_ENF, 0xFF); 711 712 if ((ued == NULL) || (ued->bLength < sizeof(*ued))) { 713 error = USB_ERR_INVAL; 714 } else { 715 /* 716 * ECM 1.2 doesn't say it excludes the CRC, but states that it's 717 * normally 1514, which excludes the CRC. 718 */ 719 DPRINTF("max segsize: %d\n", UGETW(ued->wMaxSegmentSize)); 720 if (UGETW(ued->wMaxSegmentSize) >= (ETHER_MAX_LEN - ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN)) 721 sc->sc_flags |= CDCE_FLAG_VLAN; 722 723 error = usbd_req_get_string_any(uaa->device, NULL, 724 eaddr_str, sizeof(eaddr_str), ued->iMacAddress); 725 } 726 727 if (error) { 728 /* fake MAC address */ 729 730 device_printf(dev, "faking MAC address\n"); 731 seed = ticks; 732 sc->sc_ue.ue_eaddr[0] = 0x2a; 733 memcpy(&sc->sc_ue.ue_eaddr[1], &seed, sizeof(uint32_t)); 734 sc->sc_ue.ue_eaddr[5] = device_get_unit(dev); 735 736 } else { 737 memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr)); 738 739 for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) { 740 char c = eaddr_str[i]; 741 742 if ('0' <= c && c <= '9') 743 c -= '0'; 744 else if (c != 0) 745 c -= 'A' - 10; 746 else 747 break; 748 749 c &= 0xf; 750 751 if ((i & 1) == 0) 752 c <<= 4; 753 sc->sc_ue.ue_eaddr[i / 2] |= c; 754 } 755 756 if (uaa->usb_mode == USB_MODE_DEVICE) { 757 /* 758 * Do not use the same MAC address like the peer ! 759 */ 760 sc->sc_ue.ue_eaddr[5] ^= 0xFF; 761 } 762 } 763 764 ue->ue_sc = sc; 765 ue->ue_dev = dev; 766 ue->ue_udev = uaa->device; 767 ue->ue_mtx = &sc->sc_mtx; 768 ue->ue_methods = &cdce_ue_methods; 769 770 error = uether_ifattach(ue); 771 if (error) { 772 device_printf(dev, "could not attach interface\n"); 773 goto detach; 774 } 775 return (0); /* success */ 776 777 detach: 778 cdce_detach(dev); 779 return (ENXIO); /* failure */ 780 } 781 782 static int 783 cdce_detach(device_t dev) 784 { 785 struct cdce_softc *sc = device_get_softc(dev); 786 struct usb_ether *ue = &sc->sc_ue; 787 788 /* stop all USB transfers first */ 789 usbd_transfer_unsetup(sc->sc_xfer, CDCE_N_TRANSFER); 790 uether_ifdetach(ue); 791 mtx_destroy(&sc->sc_mtx); 792 793 ifmedia_removeall(&sc->sc_media); 794 795 return (0); 796 } 797 798 static void 799 cdce_start(struct usb_ether *ue) 800 { 801 struct cdce_softc *sc = uether_getsc(ue); 802 803 /* 804 * Start the USB transfers, if not already started: 805 */ 806 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_TX]); 807 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_RX]); 808 } 809 810 static int 811 cdce_ioctl(if_t ifp, u_long command, caddr_t data) 812 { 813 struct usb_ether *ue = if_getsoftc(ifp); 814 struct cdce_softc *sc = uether_getsc(ue); 815 struct ifreq *ifr = (struct ifreq *)data; 816 int error; 817 818 error = 0; 819 820 switch(command) { 821 case SIOCGIFMEDIA: 822 case SIOCSIFMEDIA: 823 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command); 824 break; 825 default: 826 error = uether_ioctl(ifp, command, data); 827 break; 828 } 829 830 return (error); 831 } 832 833 static void 834 cdce_free_queue(struct mbuf **ppm, uint8_t n) 835 { 836 uint8_t x; 837 for (x = 0; x != n; x++) { 838 if (ppm[x] != NULL) { 839 m_freem(ppm[x]); 840 ppm[x] = NULL; 841 } 842 } 843 } 844 845 static int 846 cdce_media_change_cb(if_t ifp) 847 { 848 849 return (EOPNOTSUPP); 850 } 851 852 static void 853 cdce_media_status_cb(if_t ifp, struct ifmediareq *ifmr) 854 { 855 856 if ((if_getflags(ifp) & IFF_UP) == 0) 857 return; 858 859 ifmr->ifm_active = IFM_ETHER; 860 ifmr->ifm_status = IFM_AVALID; 861 ifmr->ifm_status |= 862 if_getlinkstate(ifp) == LINK_STATE_UP ? IFM_ACTIVE : 0; 863 } 864 865 static void 866 cdce_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 867 { 868 struct cdce_softc *sc = usbd_xfer_softc(xfer); 869 if_t ifp = uether_getifp(&sc->sc_ue); 870 struct mbuf *m; 871 struct mbuf *mt; 872 uint32_t crc; 873 uint8_t x; 874 int actlen, aframes; 875 876 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 877 878 DPRINTFN(1, "\n"); 879 880 switch (USB_GET_STATE(xfer)) { 881 case USB_ST_TRANSFERRED: 882 DPRINTFN(11, "transfer complete: %u bytes in %u frames\n", 883 actlen, aframes); 884 885 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 886 887 /* free all previous TX buffers */ 888 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 889 890 /* FALLTHROUGH */ 891 case USB_ST_SETUP: 892 tr_setup: 893 for (x = 0; x != CDCE_FRAMES_MAX; x++) { 894 m = if_dequeue(ifp); 895 896 if (m == NULL) 897 break; 898 899 if (sc->sc_flags & CDCE_FLAG_ZAURUS) { 900 /* 901 * Zaurus wants a 32-bit CRC appended 902 * to every frame 903 */ 904 905 crc = cdce_m_crc32(m, 0, m->m_pkthdr.len); 906 crc = htole32(crc); 907 908 if (!m_append(m, 4, (void *)&crc)) { 909 m_freem(m); 910 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 911 continue; 912 } 913 } 914 if (m->m_len != m->m_pkthdr.len) { 915 mt = m_defrag(m, M_NOWAIT); 916 if (mt == NULL) { 917 m_freem(m); 918 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 919 continue; 920 } 921 m = mt; 922 } 923 if (m->m_pkthdr.len > MCLBYTES) { 924 m->m_pkthdr.len = MCLBYTES; 925 } 926 sc->sc_tx_buf[x] = m; 927 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 928 929 /* 930 * If there's a BPF listener, bounce a copy of 931 * this frame to him: 932 */ 933 BPF_MTAP(ifp, m); 934 } 935 if (x != 0) { 936 usbd_xfer_set_frames(xfer, x); 937 938 usbd_transfer_submit(xfer); 939 } 940 break; 941 942 default: /* Error */ 943 DPRINTFN(11, "transfer error, %s\n", 944 usbd_errstr(error)); 945 946 /* free all previous TX buffers */ 947 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 948 949 /* count output errors */ 950 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 951 952 if (error != USB_ERR_CANCELLED) { 953 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 954 /* try to clear stall first */ 955 usbd_xfer_set_stall(xfer); 956 } 957 goto tr_setup; 958 } 959 break; 960 } 961 } 962 963 static int32_t 964 cdce_m_crc32_cb(void *arg, void *src, uint32_t count) 965 { 966 uint32_t *p_crc = arg; 967 968 *p_crc = crc32_raw(src, count, *p_crc); 969 return (0); 970 } 971 972 static uint32_t 973 cdce_m_crc32(struct mbuf *m, uint32_t src_offset, uint32_t src_len) 974 { 975 uint32_t crc = 0xFFFFFFFF; 976 977 (void)m_apply(m, src_offset, src_len, cdce_m_crc32_cb, &crc); 978 return (crc ^ 0xFFFFFFFF); 979 } 980 981 static void 982 cdce_init(struct usb_ether *ue) 983 { 984 struct cdce_softc *sc = uether_getsc(ue); 985 if_t ifp = uether_getifp(ue); 986 987 CDCE_LOCK_ASSERT(sc, MA_OWNED); 988 989 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 990 991 /* start interrupt transfer */ 992 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_RX]); 993 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 994 995 /* 996 * Stall data write direction, which depends on USB mode. 997 * 998 * Some USB host stacks (e.g. Mac OS X) don't clears stall 999 * bit as it should, so set it in our host mode only. 1000 */ 1001 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1002 usbd_xfer_set_stall(sc->sc_xfer[CDCE_BULK_TX]); 1003 1004 /* start data transfers */ 1005 cdce_start(ue); 1006 } 1007 1008 static void 1009 cdce_stop(struct usb_ether *ue) 1010 { 1011 struct cdce_softc *sc = uether_getsc(ue); 1012 if_t ifp = uether_getifp(ue); 1013 1014 CDCE_LOCK_ASSERT(sc, MA_OWNED); 1015 1016 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 1017 1018 /* 1019 * stop all the transfers, if not already stopped: 1020 */ 1021 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]); 1022 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]); 1023 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]); 1024 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]); 1025 } 1026 1027 static void 1028 cdce_setmulti(struct usb_ether *ue) 1029 { 1030 1031 cdce_set_filter(ue); 1032 } 1033 1034 static void 1035 cdce_setpromisc(struct usb_ether *ue) 1036 { 1037 1038 cdce_set_filter(ue); 1039 } 1040 1041 static void 1042 cdce_set_filter(struct usb_ether *ue) 1043 { 1044 struct cdce_softc *sc = uether_getsc(ue); 1045 if_t ifp = uether_getifp(ue); 1046 struct usb_device_request req; 1047 uint16_t value; 1048 1049 value = CDC_PACKET_TYPE_DIRECTED | CDC_PACKET_TYPE_BROADCAST; 1050 if (if_getflags(ifp) & IFF_PROMISC) 1051 value |= CDC_PACKET_TYPE_PROMISC; 1052 if (if_getflags(ifp) & IFF_ALLMULTI) 1053 value |= CDC_PACKET_TYPE_ALL_MULTICAST; 1054 1055 req.bmRequestType = UT_CLASS | UT_INTERFACE; 1056 req.bRequest = CDC_SET_ETHERNET_PACKET_FILTER; 1057 USETW(req.wValue, value); 1058 req.wIndex[0] = sc->sc_ifaces_index[1]; 1059 req.wIndex[1] = 0; 1060 USETW(req.wLength, 0); 1061 1062 /* 1063 * Function below will drop the sc mutex. 1064 * We can do that since we're called from a separate task, 1065 * that simply wraps the setpromisc/setmulti methods. 1066 */ 1067 usbd_do_request(sc->sc_ue.ue_udev, &sc->sc_mtx, &req, NULL); 1068 } 1069 1070 static int 1071 cdce_suspend(device_t dev) 1072 { 1073 device_printf(dev, "Suspending\n"); 1074 return (0); 1075 } 1076 1077 static int 1078 cdce_resume(device_t dev) 1079 { 1080 device_printf(dev, "Resuming\n"); 1081 return (0); 1082 } 1083 1084 static void 1085 cdce_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1086 { 1087 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1088 struct mbuf *m; 1089 uint8_t x; 1090 int actlen; 1091 int aframes; 1092 int len; 1093 1094 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1095 1096 switch (USB_GET_STATE(xfer)) { 1097 case USB_ST_TRANSFERRED: 1098 1099 DPRINTF("received %u bytes in %u frames\n", actlen, aframes); 1100 1101 for (x = 0; x != aframes; x++) { 1102 m = sc->sc_rx_buf[x]; 1103 sc->sc_rx_buf[x] = NULL; 1104 len = usbd_xfer_frame_len(xfer, x); 1105 1106 /* Strip off CRC added by Zaurus, if any */ 1107 if ((sc->sc_flags & CDCE_FLAG_ZAURUS) && len >= 14) 1108 len -= 4; 1109 1110 if (len < (int)sizeof(struct ether_header)) { 1111 m_freem(m); 1112 continue; 1113 } 1114 /* queue up mbuf */ 1115 uether_rxmbuf(&sc->sc_ue, m, len); 1116 } 1117 1118 /* FALLTHROUGH */ 1119 case USB_ST_SETUP: 1120 /* 1121 * TODO: Implement support for multi frame transfers, 1122 * when the USB hardware supports it. 1123 */ 1124 for (x = 0; x != 1; x++) { 1125 if (sc->sc_rx_buf[x] == NULL) { 1126 m = uether_newbuf(); 1127 if (m == NULL) 1128 goto tr_stall; 1129 sc->sc_rx_buf[x] = m; 1130 } else { 1131 m = sc->sc_rx_buf[x]; 1132 } 1133 1134 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 1135 } 1136 /* set number of frames and start hardware */ 1137 usbd_xfer_set_frames(xfer, x); 1138 usbd_transfer_submit(xfer); 1139 /* flush any received frames */ 1140 uether_rxflush(&sc->sc_ue); 1141 break; 1142 1143 default: /* Error */ 1144 DPRINTF("error = %s\n", 1145 usbd_errstr(error)); 1146 1147 if (error != USB_ERR_CANCELLED) { 1148 tr_stall: 1149 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1150 /* try to clear stall first */ 1151 usbd_xfer_set_stall(xfer); 1152 usbd_xfer_set_frames(xfer, 0); 1153 usbd_transfer_submit(xfer); 1154 } 1155 break; 1156 } 1157 1158 /* need to free the RX-mbufs when we are cancelled */ 1159 cdce_free_queue(sc->sc_rx_buf, CDCE_FRAMES_MAX); 1160 break; 1161 } 1162 } 1163 1164 static void 1165 cdce_intr_read_callback(struct usb_xfer *xfer, usb_error_t error) 1166 { 1167 u_char buf[CDCE_IND_SIZE_MAX]; 1168 struct usb_cdc_notification ucn; 1169 struct cdce_softc *sc; 1170 if_t ifp; 1171 struct usb_page_cache *pc; 1172 int off, actlen; 1173 uint32_t downrate, uprate; 1174 1175 sc = usbd_xfer_softc(xfer); 1176 ifp = uether_getifp(&sc->sc_ue); 1177 pc = usbd_xfer_get_frame(xfer, 0); 1178 1179 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1180 1181 switch (USB_GET_STATE(xfer)) { 1182 case USB_ST_TRANSFERRED: 1183 if (USB_DEBUG_VAR) 1184 usbd_copy_out(pc, 0, buf, MIN(actlen, sizeof buf)); 1185 DPRINTF("Received %d bytes: %*D\n", actlen, 1186 (int)MIN(actlen, sizeof buf), buf, ""); 1187 1188 off = 0; 1189 while (actlen - off >= UCDC_NOTIFICATION_LENGTH) { 1190 usbd_copy_out(pc, off, &ucn, UCDC_NOTIFICATION_LENGTH); 1191 1192 do { 1193 if (ucn.bmRequestType != 0xa1) 1194 break; 1195 1196 switch (ucn.bNotification) { 1197 case UCDC_N_NETWORK_CONNECTION: 1198 DPRINTF("changing link state: %d\n", 1199 UGETW(ucn.wValue)); 1200 if_link_state_change(ifp, 1201 UGETW(ucn.wValue) ? LINK_STATE_UP : 1202 LINK_STATE_DOWN); 1203 break; 1204 1205 case UCDC_N_CONNECTION_SPEED_CHANGE: 1206 if (UGETW(ucn.wLength) != 8) 1207 break; 1208 1209 usbd_copy_out(pc, off + 1210 UCDC_NOTIFICATION_LENGTH, 1211 &ucn.data, UGETW(ucn.wLength)); 1212 downrate = UGETDW(ucn.data); 1213 uprate = UGETDW(ucn.data); 1214 if (downrate != uprate) 1215 break; 1216 1217 /* set rate */ 1218 DPRINTF("changing baudrate: %u\n", 1219 downrate); 1220 if_setbaudrate(ifp, downrate); 1221 break; 1222 1223 default: 1224 break; 1225 } 1226 } while (0); 1227 1228 off += UCDC_NOTIFICATION_LENGTH + UGETW(ucn.wLength); 1229 } 1230 1231 /* FALLTHROUGH */ 1232 case USB_ST_SETUP: 1233 tr_setup: 1234 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1235 usbd_transfer_submit(xfer); 1236 break; 1237 1238 default: /* Error */ 1239 if (error != USB_ERR_CANCELLED) { 1240 /* start clear stall */ 1241 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1242 usbd_xfer_set_stall(xfer); 1243 goto tr_setup; 1244 } 1245 break; 1246 } 1247 } 1248 1249 static void 1250 cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error) 1251 { 1252 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1253 struct usb_cdc_notification req; 1254 struct usb_page_cache *pc; 1255 uint32_t speed; 1256 int actlen; 1257 1258 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1259 1260 switch (USB_GET_STATE(xfer)) { 1261 case USB_ST_TRANSFERRED: 1262 1263 DPRINTF("Transferred %d bytes\n", actlen); 1264 1265 switch (sc->sc_notify_state) { 1266 case CDCE_NOTIFY_NETWORK_CONNECTION: 1267 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1268 break; 1269 case CDCE_NOTIFY_SPEED_CHANGE: 1270 sc->sc_notify_state = CDCE_NOTIFY_DONE; 1271 break; 1272 default: 1273 break; 1274 } 1275 1276 /* FALLTHROUGH */ 1277 case USB_ST_SETUP: 1278 tr_setup: 1279 /* 1280 * Inform host about connection. Required according to USB CDC 1281 * specification and communicating to Mac OS X USB host stack. 1282 * Some of the values seems ignored by Mac OS X though. 1283 */ 1284 if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) { 1285 req.bmRequestType = UCDC_NOTIFICATION; 1286 req.bNotification = UCDC_N_NETWORK_CONNECTION; 1287 req.wIndex[0] = sc->sc_ifaces_index[1]; 1288 req.wIndex[1] = 0; 1289 USETW(req.wValue, 1); /* Connected */ 1290 USETW(req.wLength, 0); 1291 1292 pc = usbd_xfer_get_frame(xfer, 0); 1293 usbd_copy_in(pc, 0, &req, sizeof(req)); 1294 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1295 usbd_xfer_set_frames(xfer, 1); 1296 usbd_transfer_submit(xfer); 1297 1298 } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) { 1299 req.bmRequestType = UCDC_NOTIFICATION; 1300 req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE; 1301 req.wIndex[0] = sc->sc_ifaces_index[1]; 1302 req.wIndex[1] = 0; 1303 USETW(req.wValue, 0); 1304 USETW(req.wLength, 8); 1305 1306 /* Peak theoretical bulk trasfer rate in bits/s */ 1307 if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL) 1308 speed = (13 * 512 * 8 * 1000 * 8); 1309 else 1310 speed = (19 * 64 * 1 * 1000 * 8); 1311 1312 USETDW(req.data + 0, speed); /* Upstream bit rate */ 1313 USETDW(req.data + 4, speed); /* Downstream bit rate */ 1314 1315 pc = usbd_xfer_get_frame(xfer, 0); 1316 usbd_copy_in(pc, 0, &req, sizeof(req)); 1317 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1318 usbd_xfer_set_frames(xfer, 1); 1319 usbd_transfer_submit(xfer); 1320 } 1321 break; 1322 1323 default: /* Error */ 1324 if (error != USB_ERR_CANCELLED) { 1325 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1326 /* start clear stall */ 1327 usbd_xfer_set_stall(xfer); 1328 } 1329 goto tr_setup; 1330 } 1331 break; 1332 } 1333 } 1334 1335 static int 1336 cdce_handle_request(device_t dev, 1337 const void *preq, void **pptr, uint16_t *plen, 1338 uint16_t offset, uint8_t *pstate) 1339 { 1340 struct cdce_softc *sc = device_get_softc(dev); 1341 const struct usb_device_request *req = preq; 1342 uint8_t is_complete = *pstate; 1343 1344 /* 1345 * When Mac OS X resumes after suspending it expects 1346 * to be notified again after this request. 1347 */ 1348 if (req->bmRequestType == UT_WRITE_CLASS_INTERFACE && \ 1349 req->bRequest == UCDC_NCM_SET_ETHERNET_PACKET_FILTER) { 1350 if (is_complete == 1) { 1351 mtx_lock(&sc->sc_mtx); 1352 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1353 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 1354 mtx_unlock(&sc->sc_mtx); 1355 } 1356 1357 return (0); 1358 } 1359 1360 return (ENXIO); /* use builtin handler */ 1361 } 1362 1363 #if CDCE_HAVE_NCM 1364 static void 1365 cdce_ncm_tx_zero(struct usb_page_cache *pc, 1366 uint32_t start, uint32_t end) 1367 { 1368 if (start >= CDCE_NCM_TX_MAXLEN) 1369 return; 1370 if (end > CDCE_NCM_TX_MAXLEN) 1371 end = CDCE_NCM_TX_MAXLEN; 1372 1373 usbd_frame_zero(pc, start, end - start); 1374 } 1375 1376 static uint8_t 1377 cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index) 1378 { 1379 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1380 if_t ifp = uether_getifp(&sc->sc_ue); 1381 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index); 1382 struct mbuf *m; 1383 uint32_t rem; 1384 uint32_t offset; 1385 uint32_t last_offset; 1386 uint16_t n; 1387 uint8_t retval; 1388 1389 usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index); 1390 1391 offset = sizeof(sc->sc_ncm.hdr) + 1392 sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp); 1393 1394 /* Store last valid offset before alignment */ 1395 last_offset = offset; 1396 1397 /* Align offset */ 1398 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1399 offset, sc->sc_ncm.tx_modulus); 1400 1401 /* Zero pad */ 1402 cdce_ncm_tx_zero(pc, last_offset, offset); 1403 1404 /* buffer full */ 1405 retval = 2; 1406 1407 for (n = 0; n != sc->sc_ncm.tx_nframe; n++) { 1408 /* check if end of transmit buffer is reached */ 1409 1410 if (offset >= sc->sc_ncm.tx_max) 1411 break; 1412 1413 /* compute maximum buffer size */ 1414 1415 rem = sc->sc_ncm.tx_max - offset; 1416 1417 m = if_dequeue(ifp); 1418 1419 if (m == NULL) { 1420 /* buffer not full */ 1421 retval = 1; 1422 break; 1423 } 1424 1425 if (m->m_pkthdr.len > (int)rem) { 1426 if (n == 0) { 1427 /* The frame won't fit in our buffer */ 1428 DPRINTFN(1, "Frame too big to be transmitted!\n"); 1429 m_freem(m); 1430 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1431 n--; 1432 continue; 1433 } 1434 /* Wait till next buffer becomes ready */ 1435 if_sendq_prepend(ifp, m); 1436 break; 1437 } 1438 usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len); 1439 1440 USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len); 1441 USETW(sc->sc_ncm.dp[n].wFrameIndex, offset); 1442 1443 /* Update offset */ 1444 offset += m->m_pkthdr.len; 1445 1446 /* Store last valid offset before alignment */ 1447 last_offset = offset; 1448 1449 /* Align offset */ 1450 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1451 offset, sc->sc_ncm.tx_modulus); 1452 1453 /* Zero pad */ 1454 cdce_ncm_tx_zero(pc, last_offset, offset); 1455 1456 /* 1457 * If there's a BPF listener, bounce a copy 1458 * of this frame to him: 1459 */ 1460 BPF_MTAP(ifp, m); 1461 1462 /* Free mbuf */ 1463 1464 m_freem(m); 1465 1466 /* Pre-increment interface counter */ 1467 1468 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1469 } 1470 1471 if (n == 0) 1472 return (0); 1473 1474 rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4); 1475 1476 USETW(sc->sc_ncm.dpt.wLength, rem); 1477 1478 /* zero the rest of the data pointer entries */ 1479 for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) { 1480 USETW(sc->sc_ncm.dp[n].wFrameLength, 0); 1481 USETW(sc->sc_ncm.dp[n].wFrameIndex, 0); 1482 } 1483 1484 offset = last_offset; 1485 1486 /* Align offset */ 1487 offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN); 1488 1489 /* Optimise, save bandwidth and force short termination */ 1490 if (offset >= sc->sc_ncm.tx_max) 1491 offset = sc->sc_ncm.tx_max; 1492 else 1493 offset ++; 1494 1495 /* Zero pad */ 1496 cdce_ncm_tx_zero(pc, last_offset, offset); 1497 1498 /* set frame length */ 1499 usbd_xfer_set_frame_len(xfer, index, offset); 1500 1501 /* Fill out 16-bit header */ 1502 sc->sc_ncm.hdr.dwSignature[0] = 'N'; 1503 sc->sc_ncm.hdr.dwSignature[1] = 'C'; 1504 sc->sc_ncm.hdr.dwSignature[2] = 'M'; 1505 sc->sc_ncm.hdr.dwSignature[3] = 'H'; 1506 USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr)); 1507 USETW(sc->sc_ncm.hdr.wBlockLength, offset); 1508 USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq); 1509 USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr)); 1510 1511 sc->sc_ncm.tx_seq++; 1512 1513 /* Fill out 16-bit frame table header */ 1514 sc->sc_ncm.dpt.dwSignature[0] = 'N'; 1515 sc->sc_ncm.dpt.dwSignature[1] = 'C'; 1516 sc->sc_ncm.dpt.dwSignature[2] = 'M'; 1517 sc->sc_ncm.dpt.dwSignature[3] = '0'; 1518 USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */ 1519 1520 usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr)); 1521 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt), 1522 sizeof(sc->sc_ncm.dpt)); 1523 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt), 1524 &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp)); 1525 return (retval); 1526 } 1527 1528 static void 1529 cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1530 { 1531 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1532 if_t ifp = uether_getifp(&sc->sc_ue); 1533 uint16_t x; 1534 uint8_t temp; 1535 int actlen; 1536 int aframes; 1537 1538 switch (USB_GET_STATE(xfer)) { 1539 case USB_ST_TRANSFERRED: 1540 1541 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1542 1543 DPRINTFN(10, "transfer complete: " 1544 "%u bytes in %u frames\n", actlen, aframes); 1545 1546 case USB_ST_SETUP: 1547 for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) { 1548 temp = cdce_ncm_fill_tx_frames(xfer, x); 1549 if (temp == 0) 1550 break; 1551 if (temp == 1) { 1552 x++; 1553 break; 1554 } 1555 } 1556 1557 if (x != 0) { 1558 #ifdef USB_DEBUG 1559 usbd_xfer_set_interval(xfer, cdce_tx_interval); 1560 #endif 1561 usbd_xfer_set_frames(xfer, x); 1562 usbd_transfer_submit(xfer); 1563 } 1564 break; 1565 1566 default: /* Error */ 1567 DPRINTFN(10, "Transfer error: %s\n", 1568 usbd_errstr(error)); 1569 1570 /* update error counter */ 1571 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1572 1573 if (error != USB_ERR_CANCELLED) { 1574 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1575 /* try to clear stall first */ 1576 usbd_xfer_set_stall(xfer); 1577 usbd_xfer_set_frames(xfer, 0); 1578 usbd_transfer_submit(xfer); 1579 } 1580 } 1581 break; 1582 } 1583 } 1584 1585 static void 1586 cdce_ncm_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1587 { 1588 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1589 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0); 1590 if_t ifp = uether_getifp(&sc->sc_ue); 1591 struct mbuf *m; 1592 int sumdata __usbdebug_used; 1593 int sumlen; 1594 int actlen; 1595 int aframes; 1596 int temp; 1597 int nframes; 1598 int x; 1599 int offset; 1600 1601 switch (USB_GET_STATE(xfer)) { 1602 case USB_ST_TRANSFERRED: 1603 1604 usbd_xfer_status(xfer, &actlen, &sumlen, &aframes, NULL); 1605 1606 DPRINTFN(1, "received %u bytes in %u frames\n", 1607 actlen, aframes); 1608 1609 if (actlen < (int)(sizeof(sc->sc_ncm.hdr) + 1610 sizeof(sc->sc_ncm.dpt))) { 1611 DPRINTFN(1, "frame too short\n"); 1612 goto tr_setup; 1613 } 1614 usbd_copy_out(pc, 0, &(sc->sc_ncm.hdr), 1615 sizeof(sc->sc_ncm.hdr)); 1616 1617 if ((sc->sc_ncm.hdr.dwSignature[0] != 'N') || 1618 (sc->sc_ncm.hdr.dwSignature[1] != 'C') || 1619 (sc->sc_ncm.hdr.dwSignature[2] != 'M') || 1620 (sc->sc_ncm.hdr.dwSignature[3] != 'H')) { 1621 DPRINTFN(1, "invalid HDR signature: " 1622 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1623 sc->sc_ncm.hdr.dwSignature[0], 1624 sc->sc_ncm.hdr.dwSignature[1], 1625 sc->sc_ncm.hdr.dwSignature[2], 1626 sc->sc_ncm.hdr.dwSignature[3]); 1627 goto tr_stall; 1628 } 1629 temp = UGETW(sc->sc_ncm.hdr.wBlockLength); 1630 if (temp > sumlen) { 1631 DPRINTFN(1, "unsupported block length %u/%u\n", 1632 temp, sumlen); 1633 goto tr_stall; 1634 } 1635 temp = UGETW(sc->sc_ncm.hdr.wDptIndex); 1636 if ((int)(temp + sizeof(sc->sc_ncm.dpt)) > actlen) { 1637 DPRINTFN(1, "invalid DPT index: 0x%04x\n", temp); 1638 goto tr_stall; 1639 } 1640 usbd_copy_out(pc, temp, &(sc->sc_ncm.dpt), 1641 sizeof(sc->sc_ncm.dpt)); 1642 1643 if ((sc->sc_ncm.dpt.dwSignature[0] != 'N') || 1644 (sc->sc_ncm.dpt.dwSignature[1] != 'C') || 1645 (sc->sc_ncm.dpt.dwSignature[2] != 'M') || 1646 (sc->sc_ncm.dpt.dwSignature[3] != '0')) { 1647 DPRINTFN(1, "invalid DPT signature" 1648 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1649 sc->sc_ncm.dpt.dwSignature[0], 1650 sc->sc_ncm.dpt.dwSignature[1], 1651 sc->sc_ncm.dpt.dwSignature[2], 1652 sc->sc_ncm.dpt.dwSignature[3]); 1653 goto tr_stall; 1654 } 1655 nframes = UGETW(sc->sc_ncm.dpt.wLength) / 4; 1656 1657 /* Subtract size of header and last zero padded entry */ 1658 if (nframes >= (2 + 1)) 1659 nframes -= (2 + 1); 1660 else 1661 nframes = 0; 1662 1663 DPRINTFN(1, "nframes = %u\n", nframes); 1664 1665 temp += sizeof(sc->sc_ncm.dpt); 1666 1667 if ((temp + (4 * nframes)) > actlen) 1668 goto tr_stall; 1669 1670 if (nframes > CDCE_NCM_SUBFRAMES_MAX) { 1671 DPRINTFN(1, "Truncating number of frames from %u to %u\n", 1672 nframes, CDCE_NCM_SUBFRAMES_MAX); 1673 nframes = CDCE_NCM_SUBFRAMES_MAX; 1674 } 1675 usbd_copy_out(pc, temp, &(sc->sc_ncm.dp), (4 * nframes)); 1676 1677 sumdata = 0; 1678 1679 for (x = 0; x != nframes; x++) { 1680 offset = UGETW(sc->sc_ncm.dp[x].wFrameIndex); 1681 temp = UGETW(sc->sc_ncm.dp[x].wFrameLength); 1682 1683 if ((offset == 0) || 1684 (temp < (int)sizeof(struct ether_header)) || 1685 (temp > (MCLBYTES - ETHER_ALIGN))) { 1686 DPRINTFN(1, "NULL frame detected at %d\n", x); 1687 m = NULL; 1688 /* silently ignore this frame */ 1689 continue; 1690 } else if ((offset + temp) > actlen) { 1691 DPRINTFN(1, "invalid frame " 1692 "detected at %d\n", x); 1693 m = NULL; 1694 /* silently ignore this frame */ 1695 continue; 1696 } else if (temp > (int)(MHLEN - ETHER_ALIGN)) { 1697 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1698 } else { 1699 m = m_gethdr(M_NOWAIT, MT_DATA); 1700 } 1701 1702 DPRINTFN(16, "frame %u, offset = %u, length = %u \n", 1703 x, offset, temp); 1704 1705 /* check if we have a buffer */ 1706 if (m) { 1707 m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN; 1708 m_adj(m, ETHER_ALIGN); 1709 1710 usbd_copy_out(pc, offset, m->m_data, temp); 1711 1712 /* enqueue */ 1713 uether_rxmbuf(&sc->sc_ue, m, temp); 1714 1715 sumdata += temp; 1716 } else { 1717 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1718 } 1719 } 1720 1721 DPRINTFN(1, "Efficiency: %u/%u bytes\n", sumdata, actlen); 1722 1723 case USB_ST_SETUP: 1724 tr_setup: 1725 usbd_xfer_set_frame_len(xfer, 0, sc->sc_ncm.rx_max); 1726 usbd_xfer_set_frames(xfer, 1); 1727 usbd_transfer_submit(xfer); 1728 uether_rxflush(&sc->sc_ue); /* must be last */ 1729 break; 1730 1731 default: /* Error */ 1732 DPRINTFN(1, "error = %s\n", 1733 usbd_errstr(error)); 1734 1735 if (error != USB_ERR_CANCELLED) { 1736 tr_stall: 1737 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1738 /* try to clear stall first */ 1739 usbd_xfer_set_stall(xfer); 1740 usbd_xfer_set_frames(xfer, 0); 1741 usbd_transfer_submit(xfer); 1742 } 1743 } 1744 break; 1745 } 1746 } 1747 #endif 1748