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 __FBSDID("$FreeBSD$"); 52 53 #include <sys/gsb_crc32.h> 54 #include <sys/eventhandler.h> 55 #include <sys/stdint.h> 56 #include <sys/stddef.h> 57 #include <sys/queue.h> 58 #include <sys/systm.h> 59 #include <sys/socket.h> 60 #include <sys/kernel.h> 61 #include <sys/bus.h> 62 #include <sys/module.h> 63 #include <sys/lock.h> 64 #include <sys/mutex.h> 65 #include <sys/condvar.h> 66 #include <sys/sysctl.h> 67 #include <sys/sx.h> 68 #include <sys/unistd.h> 69 #include <sys/callout.h> 70 #include <sys/malloc.h> 71 #include <sys/priv.h> 72 73 #include <net/if.h> 74 #include <net/if_var.h> 75 76 #include <dev/usb/usb.h> 77 #include <dev/usb/usbdi.h> 78 #include <dev/usb/usbdi_util.h> 79 #include <dev/usb/usb_cdc.h> 80 #include "usbdevs.h" 81 82 #define USB_DEBUG_VAR cdce_debug 83 #include <dev/usb/usb_debug.h> 84 #include <dev/usb/usb_process.h> 85 #include <dev/usb/usb_msctest.h> 86 #include "usb_if.h" 87 88 #include <dev/usb/net/usb_ethernet.h> 89 #include <dev/usb/net/if_cdcereg.h> 90 91 static device_probe_t cdce_probe; 92 static device_attach_t cdce_attach; 93 static device_detach_t cdce_detach; 94 static device_suspend_t cdce_suspend; 95 static device_resume_t cdce_resume; 96 static usb_handle_request_t cdce_handle_request; 97 98 static usb_callback_t cdce_bulk_write_callback; 99 static usb_callback_t cdce_bulk_read_callback; 100 static usb_callback_t cdce_intr_read_callback; 101 static usb_callback_t cdce_intr_write_callback; 102 103 #if CDCE_HAVE_NCM 104 static usb_callback_t cdce_ncm_bulk_write_callback; 105 static usb_callback_t cdce_ncm_bulk_read_callback; 106 #endif 107 108 static uether_fn_t cdce_attach_post; 109 static uether_fn_t cdce_init; 110 static uether_fn_t cdce_stop; 111 static uether_fn_t cdce_start; 112 static uether_fn_t cdce_setmulti; 113 static uether_fn_t cdce_setpromisc; 114 static int cdce_attach_post_sub(struct usb_ether *); 115 static int cdce_ioctl(if_t, u_long, caddr_t); 116 static int cdce_media_change_cb(if_t); 117 static void cdce_media_status_cb(if_t, struct ifmediareq *); 118 119 static uint32_t cdce_m_crc32(struct mbuf *, uint32_t, uint32_t); 120 static void cdce_set_filter(struct usb_ether *); 121 122 #ifdef USB_DEBUG 123 static int cdce_debug = 0; 124 static int cdce_tx_interval = 0; 125 126 static SYSCTL_NODE(_hw_usb, OID_AUTO, cdce, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 127 "USB CDC-Ethernet"); 128 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, debug, CTLFLAG_RWTUN, &cdce_debug, 0, 129 "Debug level"); 130 SYSCTL_INT(_hw_usb_cdce, OID_AUTO, interval, CTLFLAG_RWTUN, &cdce_tx_interval, 0, 131 "NCM transmit interval in ms"); 132 #else 133 #define cdce_debug 0 134 #endif 135 136 static const struct usb_config cdce_config[CDCE_N_TRANSFER] = { 137 [CDCE_BULK_RX] = { 138 .type = UE_BULK, 139 .endpoint = UE_ADDR_ANY, 140 .direction = UE_DIR_RX, 141 .if_index = 0, 142 .frames = CDCE_FRAMES_MAX, 143 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES), 144 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,.ext_buffer = 1,}, 145 .callback = cdce_bulk_read_callback, 146 .timeout = 0, /* no timeout */ 147 .usb_mode = USB_MODE_DUAL, /* both modes */ 148 }, 149 150 [CDCE_BULK_TX] = { 151 .type = UE_BULK, 152 .endpoint = UE_ADDR_ANY, 153 .direction = UE_DIR_TX, 154 .if_index = 0, 155 .frames = CDCE_FRAMES_MAX, 156 .bufsize = (CDCE_FRAMES_MAX * MCLBYTES), 157 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,}, 158 .callback = cdce_bulk_write_callback, 159 .timeout = 10000, /* 10 seconds */ 160 .usb_mode = USB_MODE_DUAL, /* both modes */ 161 }, 162 163 [CDCE_INTR_RX] = { 164 .type = UE_INTERRUPT, 165 .endpoint = UE_ADDR_ANY, 166 .direction = UE_DIR_RX, 167 .if_index = 1, 168 .bufsize = CDCE_IND_SIZE_MAX, 169 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,}, 170 .callback = cdce_intr_read_callback, 171 .timeout = 0, 172 .usb_mode = USB_MODE_HOST, 173 }, 174 175 [CDCE_INTR_TX] = { 176 .type = UE_INTERRUPT, 177 .endpoint = UE_ADDR_ANY, 178 .direction = UE_DIR_TX, 179 .if_index = 1, 180 .bufsize = CDCE_IND_SIZE_MAX, 181 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,}, 182 .callback = cdce_intr_write_callback, 183 .timeout = 10000, /* 10 seconds */ 184 .usb_mode = USB_MODE_DEVICE, 185 }, 186 }; 187 188 #if CDCE_HAVE_NCM 189 static const struct usb_config cdce_ncm_config[CDCE_N_TRANSFER] = { 190 [CDCE_BULK_RX] = { 191 .type = UE_BULK, 192 .endpoint = UE_ADDR_ANY, 193 .direction = UE_DIR_RX, 194 .if_index = 0, 195 .frames = CDCE_NCM_RX_FRAMES_MAX, 196 .bufsize = (CDCE_NCM_RX_FRAMES_MAX * CDCE_NCM_RX_MAXLEN), 197 .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok = 1,}, 198 .callback = cdce_ncm_bulk_read_callback, 199 .timeout = 0, /* no timeout */ 200 .usb_mode = USB_MODE_DUAL, /* both modes */ 201 }, 202 203 [CDCE_BULK_TX] = { 204 .type = UE_BULK, 205 .endpoint = UE_ADDR_ANY, 206 .direction = UE_DIR_TX, 207 .if_index = 0, 208 .frames = CDCE_NCM_TX_FRAMES_MAX, 209 .bufsize = (CDCE_NCM_TX_FRAMES_MAX * CDCE_NCM_TX_MAXLEN), 210 .flags = {.pipe_bof = 1,}, 211 .callback = cdce_ncm_bulk_write_callback, 212 .timeout = 10000, /* 10 seconds */ 213 .usb_mode = USB_MODE_DUAL, /* both modes */ 214 }, 215 216 [CDCE_INTR_RX] = { 217 .type = UE_INTERRUPT, 218 .endpoint = UE_ADDR_ANY, 219 .direction = UE_DIR_RX, 220 .if_index = 1, 221 .bufsize = CDCE_IND_SIZE_MAX, 222 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,}, 223 .callback = cdce_intr_read_callback, 224 .timeout = 0, 225 .usb_mode = USB_MODE_HOST, 226 }, 227 228 [CDCE_INTR_TX] = { 229 .type = UE_INTERRUPT, 230 .endpoint = UE_ADDR_ANY, 231 .direction = UE_DIR_TX, 232 .if_index = 1, 233 .bufsize = CDCE_IND_SIZE_MAX, 234 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,}, 235 .callback = cdce_intr_write_callback, 236 .timeout = 10000, /* 10 seconds */ 237 .usb_mode = USB_MODE_DEVICE, 238 }, 239 }; 240 #endif 241 242 static device_method_t cdce_methods[] = { 243 /* USB interface */ 244 DEVMETHOD(usb_handle_request, cdce_handle_request), 245 246 /* Device interface */ 247 DEVMETHOD(device_probe, cdce_probe), 248 DEVMETHOD(device_attach, cdce_attach), 249 DEVMETHOD(device_detach, cdce_detach), 250 DEVMETHOD(device_suspend, cdce_suspend), 251 DEVMETHOD(device_resume, cdce_resume), 252 253 DEVMETHOD_END 254 }; 255 256 static driver_t cdce_driver = { 257 .name = "cdce", 258 .methods = cdce_methods, 259 .size = sizeof(struct cdce_softc), 260 }; 261 262 static eventhandler_tag cdce_etag; 263 264 static int cdce_driver_loaded(struct module *, int, void *); 265 266 static const STRUCT_USB_HOST_ID cdce_switch_devs[] = { 267 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3272_INIT, MSC_EJECT_HUAWEI2)}, 268 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372v153_INIT, MSC_EJECT_HUAWEI2)}, 269 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3372_INIT, MSC_EJECT_HUAWEI4)}, 270 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E5573Cs322_ECM, MSC_EJECT_HUAWEI3)}, 271 }; 272 273 static const STRUCT_USB_HOST_ID cdce_host_devs[] = { 274 {USB_VPI(USB_VENDOR_ACERLABS, USB_PRODUCT_ACERLABS_M5632, CDCE_FLAG_NO_UNION)}, 275 {USB_VPI(USB_VENDOR_AMBIT, USB_PRODUCT_AMBIT_NTL_250, CDCE_FLAG_NO_UNION)}, 276 {USB_VPI(USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQLINUX, CDCE_FLAG_NO_UNION)}, 277 {USB_VPI(USB_VENDOR_GMATE, USB_PRODUCT_GMATE_YP3X00, CDCE_FLAG_NO_UNION)}, 278 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 279 {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN2, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 280 {USB_VPI(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2501, CDCE_FLAG_NO_UNION)}, 281 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5500, CDCE_FLAG_ZAURUS)}, 282 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5600, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 283 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLA300, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 284 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC700, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 285 {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC750, CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)}, 286 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8156, 0)}, 287 288 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 289 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x16), 290 USB_DRIVER_INFO(0)}, 291 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 292 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x46), 293 USB_DRIVER_INFO(0)}, 294 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 295 USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x76), 296 USB_DRIVER_INFO(0)}, 297 {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR), 298 USB_IFACE_SUBCLASS(0x03), USB_IFACE_PROTOCOL(0x16), 299 USB_DRIVER_INFO(0)}, 300 }; 301 302 static const STRUCT_USB_DUAL_ID cdce_dual_devs[] = { 303 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL, 0)}, 304 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_MOBILE_DIRECT_LINE_MODEL, 0)}, 305 {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_NETWORK_CONTROL_MODEL, 0)}, 306 }; 307 308 DRIVER_MODULE(cdce, uhub, cdce_driver, cdce_driver_loaded, NULL); 309 MODULE_VERSION(cdce, 1); 310 MODULE_DEPEND(cdce, uether, 1, 1, 1); 311 MODULE_DEPEND(cdce, usb, 1, 1, 1); 312 MODULE_DEPEND(cdce, ether, 1, 1, 1); 313 USB_PNP_DEVICE_INFO(cdce_switch_devs); 314 USB_PNP_HOST_INFO(cdce_host_devs); 315 USB_PNP_DUAL_INFO(cdce_dual_devs); 316 317 static const struct usb_ether_methods cdce_ue_methods = { 318 .ue_attach_post = cdce_attach_post, 319 .ue_attach_post_sub = cdce_attach_post_sub, 320 .ue_start = cdce_start, 321 .ue_init = cdce_init, 322 .ue_stop = cdce_stop, 323 .ue_setmulti = cdce_setmulti, 324 .ue_setpromisc = cdce_setpromisc, 325 }; 326 327 #if CDCE_HAVE_NCM 328 /*------------------------------------------------------------------------* 329 * cdce_ncm_init 330 * 331 * Return values: 332 * 0: Success 333 * Else: Failure 334 *------------------------------------------------------------------------*/ 335 static uint8_t 336 cdce_ncm_init(struct cdce_softc *sc) 337 { 338 struct usb_ncm_parameters temp; 339 struct usb_device_request req; 340 struct usb_ncm_func_descriptor *ufd; 341 uint8_t value[8]; 342 int err; 343 344 ufd = usbd_find_descriptor(sc->sc_ue.ue_udev, NULL, 345 sc->sc_ifaces_index[1], UDESC_CS_INTERFACE, 0xFF, 346 UCDC_NCM_FUNC_DESC_SUBTYPE, 0xFF); 347 348 /* verify length of NCM functional descriptor */ 349 if (ufd != NULL) { 350 if (ufd->bLength < sizeof(*ufd)) 351 ufd = NULL; 352 else 353 DPRINTFN(1, "Found NCM functional descriptor.\n"); 354 } 355 356 req.bmRequestType = UT_READ_CLASS_INTERFACE; 357 req.bRequest = UCDC_NCM_GET_NTB_PARAMETERS; 358 USETW(req.wValue, 0); 359 req.wIndex[0] = sc->sc_ifaces_index[1]; 360 req.wIndex[1] = 0; 361 USETW(req.wLength, sizeof(temp)); 362 363 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 364 &temp, 0, NULL, 1000 /* ms */); 365 if (err) 366 return (1); 367 368 /* Read correct set of parameters according to device mode */ 369 370 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 371 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbInMaxSize); 372 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbOutMaxSize); 373 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpOutPayloadRemainder); 374 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpOutDivisor); 375 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpOutAlignment); 376 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams); 377 } else { 378 sc->sc_ncm.rx_max = UGETDW(temp.dwNtbOutMaxSize); 379 sc->sc_ncm.tx_max = UGETDW(temp.dwNtbInMaxSize); 380 sc->sc_ncm.tx_remainder = UGETW(temp.wNdpInPayloadRemainder); 381 sc->sc_ncm.tx_modulus = UGETW(temp.wNdpInDivisor); 382 sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpInAlignment); 383 sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams); 384 } 385 386 /* Verify maximum receive length */ 387 388 if ((sc->sc_ncm.rx_max < 32) || 389 (sc->sc_ncm.rx_max > CDCE_NCM_RX_MAXLEN)) { 390 DPRINTFN(1, "Using default maximum receive length\n"); 391 sc->sc_ncm.rx_max = CDCE_NCM_RX_MAXLEN; 392 } 393 394 /* Verify maximum transmit length */ 395 396 if ((sc->sc_ncm.tx_max < 32) || 397 (sc->sc_ncm.tx_max > CDCE_NCM_TX_MAXLEN)) { 398 DPRINTFN(1, "Using default maximum transmit length\n"); 399 sc->sc_ncm.tx_max = CDCE_NCM_TX_MAXLEN; 400 } 401 402 /* 403 * Verify that the structure alignment is: 404 * - power of two 405 * - not greater than the maximum transmit length 406 * - not less than four bytes 407 */ 408 if ((sc->sc_ncm.tx_struct_align < 4) || 409 (sc->sc_ncm.tx_struct_align != 410 ((-sc->sc_ncm.tx_struct_align) & sc->sc_ncm.tx_struct_align)) || 411 (sc->sc_ncm.tx_struct_align >= sc->sc_ncm.tx_max)) { 412 DPRINTFN(1, "Using default other alignment: 4 bytes\n"); 413 sc->sc_ncm.tx_struct_align = 4; 414 } 415 416 /* 417 * Verify that the payload alignment is: 418 * - power of two 419 * - not greater than the maximum transmit length 420 * - not less than four bytes 421 */ 422 if ((sc->sc_ncm.tx_modulus < 4) || 423 (sc->sc_ncm.tx_modulus != 424 ((-sc->sc_ncm.tx_modulus) & sc->sc_ncm.tx_modulus)) || 425 (sc->sc_ncm.tx_modulus >= sc->sc_ncm.tx_max)) { 426 DPRINTFN(1, "Using default transmit modulus: 4 bytes\n"); 427 sc->sc_ncm.tx_modulus = 4; 428 } 429 430 /* Verify that the payload remainder */ 431 432 if ((sc->sc_ncm.tx_remainder >= sc->sc_ncm.tx_modulus)) { 433 DPRINTFN(1, "Using default transmit remainder: 0 bytes\n"); 434 sc->sc_ncm.tx_remainder = 0; 435 } 436 437 /* 438 * Offset the TX remainder so that IP packet payload starts at 439 * the tx_modulus. This is not too clear in the specification. 440 */ 441 442 sc->sc_ncm.tx_remainder = 443 (sc->sc_ncm.tx_remainder - ETHER_HDR_LEN) & 444 (sc->sc_ncm.tx_modulus - 1); 445 446 /* Verify max datagrams */ 447 448 if (sc->sc_ncm.tx_nframe == 0 || 449 sc->sc_ncm.tx_nframe > (CDCE_NCM_SUBFRAMES_MAX - 1)) { 450 DPRINTFN(1, "Using default max " 451 "subframes: %u units\n", CDCE_NCM_SUBFRAMES_MAX - 1); 452 /* need to reserve one entry for zero padding */ 453 sc->sc_ncm.tx_nframe = (CDCE_NCM_SUBFRAMES_MAX - 1); 454 } 455 456 /* Additional configuration, will fail in device side mode, which is OK. */ 457 458 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 459 req.bRequest = UCDC_NCM_SET_NTB_INPUT_SIZE; 460 USETW(req.wValue, 0); 461 req.wIndex[0] = sc->sc_ifaces_index[1]; 462 req.wIndex[1] = 0; 463 464 if (ufd != NULL && 465 (ufd->bmNetworkCapabilities & UCDC_NCM_CAP_MAX_DGRAM)) { 466 USETW(req.wLength, 8); 467 USETDW(value, sc->sc_ncm.rx_max); 468 USETW(value + 4, (CDCE_NCM_SUBFRAMES_MAX - 1)); 469 USETW(value + 6, 0); 470 } else { 471 USETW(req.wLength, 4); 472 USETDW(value, sc->sc_ncm.rx_max); 473 } 474 475 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 476 &value, 0, NULL, 1000 /* ms */); 477 if (err) { 478 DPRINTFN(1, "Setting input size " 479 "to %u failed.\n", sc->sc_ncm.rx_max); 480 } 481 482 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 483 req.bRequest = UCDC_NCM_SET_CRC_MODE; 484 USETW(req.wValue, 0); /* no CRC */ 485 req.wIndex[0] = sc->sc_ifaces_index[1]; 486 req.wIndex[1] = 0; 487 USETW(req.wLength, 0); 488 489 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 490 NULL, 0, NULL, 1000 /* ms */); 491 if (err) { 492 DPRINTFN(1, "Setting CRC mode to off failed.\n"); 493 } 494 495 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 496 req.bRequest = UCDC_NCM_SET_NTB_FORMAT; 497 USETW(req.wValue, 0); /* NTB-16 */ 498 req.wIndex[0] = sc->sc_ifaces_index[1]; 499 req.wIndex[1] = 0; 500 USETW(req.wLength, 0); 501 502 err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req, 503 NULL, 0, NULL, 1000 /* ms */); 504 if (err) { 505 DPRINTFN(1, "Setting NTB format to 16-bit failed.\n"); 506 } 507 508 return (0); /* success */ 509 } 510 #endif 511 512 static void 513 cdce_test_autoinst(void *arg, struct usb_device *udev, 514 struct usb_attach_arg *uaa) 515 { 516 struct usb_interface *iface; 517 struct usb_interface_descriptor *id; 518 519 if (uaa->dev_state != UAA_DEV_READY) 520 return; 521 522 iface = usbd_get_iface(udev, 0); 523 if (iface == NULL) 524 return; 525 id = iface->idesc; 526 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 527 return; 528 if (usbd_lookup_id_by_uaa(cdce_switch_devs, sizeof(cdce_switch_devs), uaa)) 529 return; /* no device match */ 530 531 if (usb_msc_eject(udev, 0, USB_GET_DRIVER_INFO(uaa)) == 0) { 532 /* success, mark the udev as disappearing */ 533 uaa->dev_state = UAA_DEV_EJECTING; 534 } 535 } 536 537 static int 538 cdce_driver_loaded(struct module *mod, int what, void *arg) 539 { 540 switch (what) { 541 case MOD_LOAD: 542 /* register our autoinstall handler */ 543 cdce_etag = EVENTHANDLER_REGISTER(usb_dev_configured, 544 cdce_test_autoinst, NULL, EVENTHANDLER_PRI_ANY); 545 return (0); 546 case MOD_UNLOAD: 547 EVENTHANDLER_DEREGISTER(usb_dev_configured, cdce_etag); 548 return (0); 549 default: 550 return (EOPNOTSUPP); 551 } 552 } 553 554 static int 555 cdce_probe(device_t dev) 556 { 557 struct usb_attach_arg *uaa = device_get_ivars(dev); 558 int error; 559 560 error = usbd_lookup_id_by_uaa(cdce_host_devs, sizeof(cdce_host_devs), uaa); 561 if (error) 562 error = usbd_lookup_id_by_uaa(cdce_dual_devs, sizeof(cdce_dual_devs), uaa); 563 return (error); 564 } 565 566 static void 567 cdce_attach_post(struct usb_ether *ue) 568 { 569 /* no-op */ 570 return; 571 } 572 573 static int 574 cdce_attach_post_sub(struct usb_ether *ue) 575 { 576 struct cdce_softc *sc = uether_getsc(ue); 577 if_t ifp = uether_getifp(ue); 578 579 /* mostly copied from usb_ethernet.c */ 580 if_setflags(ifp, IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 581 if_setstartfn(ifp, uether_start); 582 if_setioctlfn(ifp, cdce_ioctl); 583 if_setinitfn(ifp, uether_init); 584 if_setsendqlen(ifp, ifqmaxlen); 585 if_setsendqready(ifp); 586 587 if ((sc->sc_flags & CDCE_FLAG_VLAN) == CDCE_FLAG_VLAN) 588 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0); 589 590 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE, 0); 591 if_setcapenable(ifp, if_getcapabilities(ifp)); 592 593 ifmedia_init(&sc->sc_media, IFM_IMASK, cdce_media_change_cb, 594 cdce_media_status_cb); 595 ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL); 596 ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO); 597 sc->sc_media.ifm_media = sc->sc_media.ifm_cur->ifm_media; 598 CDCE_LOCK(sc); 599 cdce_set_filter(ue); 600 CDCE_UNLOCK(sc); 601 602 return 0; 603 } 604 605 static int 606 cdce_attach(device_t dev) 607 { 608 struct cdce_softc *sc = device_get_softc(dev); 609 struct usb_ether *ue = &sc->sc_ue; 610 struct usb_attach_arg *uaa = device_get_ivars(dev); 611 struct usb_interface *iface; 612 const struct usb_cdc_union_descriptor *ud; 613 const struct usb_interface_descriptor *id; 614 const struct usb_cdc_ethernet_descriptor *ued; 615 const struct usb_config *pcfg; 616 uint32_t seed; 617 int error; 618 uint8_t i; 619 uint8_t data_iface_no; 620 char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */ 621 622 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 623 sc->sc_ue.ue_udev = uaa->device; 624 625 device_set_usb_desc(dev); 626 627 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 628 629 ud = usbd_find_descriptor 630 (uaa->device, NULL, uaa->info.bIfaceIndex, 631 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_UNION, 0xFF); 632 633 if ((ud == NULL) || (ud->bLength < sizeof(*ud)) || 634 (sc->sc_flags & CDCE_FLAG_NO_UNION)) { 635 DPRINTFN(1, "No union descriptor!\n"); 636 sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex; 637 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 638 goto alloc_transfers; 639 } 640 data_iface_no = ud->bSlaveInterface[0]; 641 642 for (i = 0;; i++) { 643 iface = usbd_get_iface(uaa->device, i); 644 645 if (iface) { 646 id = usbd_get_interface_descriptor(iface); 647 648 if (id && (id->bInterfaceNumber == data_iface_no)) { 649 sc->sc_ifaces_index[0] = i; 650 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 651 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex); 652 break; 653 } 654 } else { 655 device_printf(dev, "no data interface found\n"); 656 goto detach; 657 } 658 } 659 660 /* 661 * <quote> 662 * 663 * The Data Class interface of a networking device shall have 664 * a minimum of two interface settings. The first setting 665 * (the default interface setting) includes no endpoints and 666 * therefore no networking traffic is exchanged whenever the 667 * default interface setting is selected. One or more 668 * additional interface settings are used for normal 669 * operation, and therefore each includes a pair of endpoints 670 * (one IN, and one OUT) to exchange network traffic. Select 671 * an alternate interface setting to initialize the network 672 * aspects of the device and to enable the exchange of 673 * network traffic. 674 * 675 * </quote> 676 * 677 * Some devices, most notably cable modems, include interface 678 * settings that have no IN or OUT endpoint, therefore loop 679 * through the list of all available interface settings 680 * looking for one with both IN and OUT endpoints. 681 */ 682 683 alloc_transfers: 684 685 pcfg = cdce_config; /* Default Configuration */ 686 687 for (i = 0; i != 32; i++) { 688 error = usbd_set_alt_interface_index(uaa->device, 689 sc->sc_ifaces_index[0], i); 690 if (error) 691 break; 692 #if CDCE_HAVE_NCM 693 if ((i == 0) && (cdce_ncm_init(sc) == 0)) 694 pcfg = cdce_ncm_config; 695 #endif 696 error = usbd_transfer_setup(uaa->device, 697 sc->sc_ifaces_index, sc->sc_xfer, 698 pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx); 699 700 if (error == 0) 701 break; 702 } 703 704 if (error || (i == 32)) { 705 device_printf(dev, "No valid alternate " 706 "setting found\n"); 707 goto detach; 708 } 709 710 ued = usbd_find_descriptor 711 (uaa->device, NULL, uaa->info.bIfaceIndex, 712 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_ENF, 0xFF); 713 714 if ((ued == NULL) || (ued->bLength < sizeof(*ued))) { 715 error = USB_ERR_INVAL; 716 } else { 717 /* 718 * ECM 1.2 doesn't say it excludes the CRC, but states that it's 719 * normally 1514, which excludes the CRC. 720 */ 721 DPRINTF("max segsize: %d\n", UGETW(ued->wMaxSegmentSize)); 722 if (UGETW(ued->wMaxSegmentSize) >= (ETHER_MAX_LEN - ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN)) 723 sc->sc_flags |= CDCE_FLAG_VLAN; 724 725 error = usbd_req_get_string_any(uaa->device, NULL, 726 eaddr_str, sizeof(eaddr_str), ued->iMacAddress); 727 } 728 729 if (error) { 730 /* fake MAC address */ 731 732 device_printf(dev, "faking MAC address\n"); 733 seed = ticks; 734 sc->sc_ue.ue_eaddr[0] = 0x2a; 735 memcpy(&sc->sc_ue.ue_eaddr[1], &seed, sizeof(uint32_t)); 736 sc->sc_ue.ue_eaddr[5] = device_get_unit(dev); 737 738 } else { 739 memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr)); 740 741 for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) { 742 char c = eaddr_str[i]; 743 744 if ('0' <= c && c <= '9') 745 c -= '0'; 746 else if (c != 0) 747 c -= 'A' - 10; 748 else 749 break; 750 751 c &= 0xf; 752 753 if ((i & 1) == 0) 754 c <<= 4; 755 sc->sc_ue.ue_eaddr[i / 2] |= c; 756 } 757 758 if (uaa->usb_mode == USB_MODE_DEVICE) { 759 /* 760 * Do not use the same MAC address like the peer ! 761 */ 762 sc->sc_ue.ue_eaddr[5] ^= 0xFF; 763 } 764 } 765 766 ue->ue_sc = sc; 767 ue->ue_dev = dev; 768 ue->ue_udev = uaa->device; 769 ue->ue_mtx = &sc->sc_mtx; 770 ue->ue_methods = &cdce_ue_methods; 771 772 error = uether_ifattach(ue); 773 if (error) { 774 device_printf(dev, "could not attach interface\n"); 775 goto detach; 776 } 777 return (0); /* success */ 778 779 detach: 780 cdce_detach(dev); 781 return (ENXIO); /* failure */ 782 } 783 784 static int 785 cdce_detach(device_t dev) 786 { 787 struct cdce_softc *sc = device_get_softc(dev); 788 struct usb_ether *ue = &sc->sc_ue; 789 790 /* stop all USB transfers first */ 791 usbd_transfer_unsetup(sc->sc_xfer, CDCE_N_TRANSFER); 792 uether_ifdetach(ue); 793 mtx_destroy(&sc->sc_mtx); 794 795 ifmedia_removeall(&sc->sc_media); 796 797 return (0); 798 } 799 800 static void 801 cdce_start(struct usb_ether *ue) 802 { 803 struct cdce_softc *sc = uether_getsc(ue); 804 805 /* 806 * Start the USB transfers, if not already started: 807 */ 808 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_TX]); 809 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_RX]); 810 } 811 812 static int 813 cdce_ioctl(if_t ifp, u_long command, caddr_t data) 814 { 815 struct usb_ether *ue = if_getsoftc(ifp); 816 struct cdce_softc *sc = uether_getsc(ue); 817 struct ifreq *ifr = (struct ifreq *)data; 818 int error; 819 820 error = 0; 821 822 switch(command) { 823 case SIOCGIFMEDIA: 824 case SIOCSIFMEDIA: 825 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command); 826 break; 827 default: 828 error = uether_ioctl(ifp, command, data); 829 break; 830 } 831 832 return (error); 833 } 834 835 static void 836 cdce_free_queue(struct mbuf **ppm, uint8_t n) 837 { 838 uint8_t x; 839 for (x = 0; x != n; x++) { 840 if (ppm[x] != NULL) { 841 m_freem(ppm[x]); 842 ppm[x] = NULL; 843 } 844 } 845 } 846 847 static int 848 cdce_media_change_cb(if_t ifp) 849 { 850 851 return (EOPNOTSUPP); 852 } 853 854 static void 855 cdce_media_status_cb(if_t ifp, struct ifmediareq *ifmr) 856 { 857 858 if ((if_getflags(ifp) & IFF_UP) == 0) 859 return; 860 861 ifmr->ifm_active = IFM_ETHER; 862 ifmr->ifm_status = IFM_AVALID; 863 ifmr->ifm_status |= 864 if_getlinkstate(ifp) == LINK_STATE_UP ? IFM_ACTIVE : 0; 865 } 866 867 static void 868 cdce_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 869 { 870 struct cdce_softc *sc = usbd_xfer_softc(xfer); 871 if_t ifp = uether_getifp(&sc->sc_ue); 872 struct mbuf *m; 873 struct mbuf *mt; 874 uint32_t crc; 875 uint8_t x; 876 int actlen, aframes; 877 878 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 879 880 DPRINTFN(1, "\n"); 881 882 switch (USB_GET_STATE(xfer)) { 883 case USB_ST_TRANSFERRED: 884 DPRINTFN(11, "transfer complete: %u bytes in %u frames\n", 885 actlen, aframes); 886 887 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 888 889 /* free all previous TX buffers */ 890 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 891 892 /* FALLTHROUGH */ 893 case USB_ST_SETUP: 894 tr_setup: 895 for (x = 0; x != CDCE_FRAMES_MAX; x++) { 896 m = if_dequeue(ifp); 897 898 if (m == NULL) 899 break; 900 901 if (sc->sc_flags & CDCE_FLAG_ZAURUS) { 902 /* 903 * Zaurus wants a 32-bit CRC appended 904 * to every frame 905 */ 906 907 crc = cdce_m_crc32(m, 0, m->m_pkthdr.len); 908 crc = htole32(crc); 909 910 if (!m_append(m, 4, (void *)&crc)) { 911 m_freem(m); 912 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 913 continue; 914 } 915 } 916 if (m->m_len != m->m_pkthdr.len) { 917 mt = m_defrag(m, M_NOWAIT); 918 if (mt == NULL) { 919 m_freem(m); 920 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 921 continue; 922 } 923 m = mt; 924 } 925 if (m->m_pkthdr.len > MCLBYTES) { 926 m->m_pkthdr.len = MCLBYTES; 927 } 928 sc->sc_tx_buf[x] = m; 929 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 930 931 /* 932 * If there's a BPF listener, bounce a copy of 933 * this frame to him: 934 */ 935 BPF_MTAP(ifp, m); 936 } 937 if (x != 0) { 938 usbd_xfer_set_frames(xfer, x); 939 940 usbd_transfer_submit(xfer); 941 } 942 break; 943 944 default: /* Error */ 945 DPRINTFN(11, "transfer error, %s\n", 946 usbd_errstr(error)); 947 948 /* free all previous TX buffers */ 949 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 950 951 /* count output errors */ 952 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 953 954 if (error != USB_ERR_CANCELLED) { 955 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 956 /* try to clear stall first */ 957 usbd_xfer_set_stall(xfer); 958 } 959 goto tr_setup; 960 } 961 break; 962 } 963 } 964 965 static int32_t 966 cdce_m_crc32_cb(void *arg, void *src, uint32_t count) 967 { 968 uint32_t *p_crc = arg; 969 970 *p_crc = crc32_raw(src, count, *p_crc); 971 return (0); 972 } 973 974 static uint32_t 975 cdce_m_crc32(struct mbuf *m, uint32_t src_offset, uint32_t src_len) 976 { 977 uint32_t crc = 0xFFFFFFFF; 978 979 (void)m_apply(m, src_offset, src_len, cdce_m_crc32_cb, &crc); 980 return (crc ^ 0xFFFFFFFF); 981 } 982 983 static void 984 cdce_init(struct usb_ether *ue) 985 { 986 struct cdce_softc *sc = uether_getsc(ue); 987 if_t ifp = uether_getifp(ue); 988 989 CDCE_LOCK_ASSERT(sc, MA_OWNED); 990 991 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 992 993 /* start interrupt transfer */ 994 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_RX]); 995 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 996 997 /* 998 * Stall data write direction, which depends on USB mode. 999 * 1000 * Some USB host stacks (e.g. Mac OS X) don't clears stall 1001 * bit as it should, so set it in our host mode only. 1002 */ 1003 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1004 usbd_xfer_set_stall(sc->sc_xfer[CDCE_BULK_TX]); 1005 1006 /* start data transfers */ 1007 cdce_start(ue); 1008 } 1009 1010 static void 1011 cdce_stop(struct usb_ether *ue) 1012 { 1013 struct cdce_softc *sc = uether_getsc(ue); 1014 if_t ifp = uether_getifp(ue); 1015 1016 CDCE_LOCK_ASSERT(sc, MA_OWNED); 1017 1018 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 1019 1020 /* 1021 * stop all the transfers, if not already stopped: 1022 */ 1023 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]); 1024 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]); 1025 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]); 1026 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]); 1027 } 1028 1029 static void 1030 cdce_setmulti(struct usb_ether *ue) 1031 { 1032 1033 cdce_set_filter(ue); 1034 } 1035 1036 static void 1037 cdce_setpromisc(struct usb_ether *ue) 1038 { 1039 1040 cdce_set_filter(ue); 1041 } 1042 1043 static void 1044 cdce_set_filter(struct usb_ether *ue) 1045 { 1046 struct cdce_softc *sc = uether_getsc(ue); 1047 if_t ifp = uether_getifp(ue); 1048 struct usb_device_request req; 1049 uint16_t value; 1050 1051 value = CDC_PACKET_TYPE_DIRECTED | CDC_PACKET_TYPE_BROADCAST; 1052 if (if_getflags(ifp) & IFF_PROMISC) 1053 value |= CDC_PACKET_TYPE_PROMISC; 1054 if (if_getflags(ifp) & IFF_ALLMULTI) 1055 value |= CDC_PACKET_TYPE_ALL_MULTICAST; 1056 1057 req.bmRequestType = UT_CLASS | UT_INTERFACE; 1058 req.bRequest = CDC_SET_ETHERNET_PACKET_FILTER; 1059 USETW(req.wValue, value); 1060 req.wIndex[0] = sc->sc_ifaces_index[1]; 1061 req.wIndex[1] = 0; 1062 USETW(req.wLength, 0); 1063 1064 /* 1065 * Function below will drop the sc mutex. 1066 * We can do that since we're called from a separate task, 1067 * that simply wraps the setpromisc/setmulti methods. 1068 */ 1069 usbd_do_request(sc->sc_ue.ue_udev, &sc->sc_mtx, &req, NULL); 1070 } 1071 1072 static int 1073 cdce_suspend(device_t dev) 1074 { 1075 device_printf(dev, "Suspending\n"); 1076 return (0); 1077 } 1078 1079 static int 1080 cdce_resume(device_t dev) 1081 { 1082 device_printf(dev, "Resuming\n"); 1083 return (0); 1084 } 1085 1086 static void 1087 cdce_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1088 { 1089 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1090 struct mbuf *m; 1091 uint8_t x; 1092 int actlen; 1093 int aframes; 1094 int len; 1095 1096 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1097 1098 switch (USB_GET_STATE(xfer)) { 1099 case USB_ST_TRANSFERRED: 1100 1101 DPRINTF("received %u bytes in %u frames\n", actlen, aframes); 1102 1103 for (x = 0; x != aframes; x++) { 1104 m = sc->sc_rx_buf[x]; 1105 sc->sc_rx_buf[x] = NULL; 1106 len = usbd_xfer_frame_len(xfer, x); 1107 1108 /* Strip off CRC added by Zaurus, if any */ 1109 if ((sc->sc_flags & CDCE_FLAG_ZAURUS) && len >= 14) 1110 len -= 4; 1111 1112 if (len < (int)sizeof(struct ether_header)) { 1113 m_freem(m); 1114 continue; 1115 } 1116 /* queue up mbuf */ 1117 uether_rxmbuf(&sc->sc_ue, m, len); 1118 } 1119 1120 /* FALLTHROUGH */ 1121 case USB_ST_SETUP: 1122 /* 1123 * TODO: Implement support for multi frame transfers, 1124 * when the USB hardware supports it. 1125 */ 1126 for (x = 0; x != 1; x++) { 1127 if (sc->sc_rx_buf[x] == NULL) { 1128 m = uether_newbuf(); 1129 if (m == NULL) 1130 goto tr_stall; 1131 sc->sc_rx_buf[x] = m; 1132 } else { 1133 m = sc->sc_rx_buf[x]; 1134 } 1135 1136 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 1137 } 1138 /* set number of frames and start hardware */ 1139 usbd_xfer_set_frames(xfer, x); 1140 usbd_transfer_submit(xfer); 1141 /* flush any received frames */ 1142 uether_rxflush(&sc->sc_ue); 1143 break; 1144 1145 default: /* Error */ 1146 DPRINTF("error = %s\n", 1147 usbd_errstr(error)); 1148 1149 if (error != USB_ERR_CANCELLED) { 1150 tr_stall: 1151 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1152 /* try to clear stall first */ 1153 usbd_xfer_set_stall(xfer); 1154 usbd_xfer_set_frames(xfer, 0); 1155 usbd_transfer_submit(xfer); 1156 } 1157 break; 1158 } 1159 1160 /* need to free the RX-mbufs when we are cancelled */ 1161 cdce_free_queue(sc->sc_rx_buf, CDCE_FRAMES_MAX); 1162 break; 1163 } 1164 } 1165 1166 static void 1167 cdce_intr_read_callback(struct usb_xfer *xfer, usb_error_t error) 1168 { 1169 u_char buf[CDCE_IND_SIZE_MAX]; 1170 struct usb_cdc_notification ucn; 1171 struct cdce_softc *sc; 1172 if_t ifp; 1173 struct usb_page_cache *pc; 1174 int off, actlen; 1175 uint32_t downrate, uprate; 1176 1177 sc = usbd_xfer_softc(xfer); 1178 ifp = uether_getifp(&sc->sc_ue); 1179 pc = usbd_xfer_get_frame(xfer, 0); 1180 1181 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1182 1183 switch (USB_GET_STATE(xfer)) { 1184 case USB_ST_TRANSFERRED: 1185 if (USB_DEBUG_VAR) 1186 usbd_copy_out(pc, 0, buf, MIN(actlen, sizeof buf)); 1187 DPRINTF("Received %d bytes: %*D\n", actlen, 1188 (int)MIN(actlen, sizeof buf), buf, ""); 1189 1190 off = 0; 1191 while (actlen - off >= UCDC_NOTIFICATION_LENGTH) { 1192 usbd_copy_out(pc, off, &ucn, UCDC_NOTIFICATION_LENGTH); 1193 1194 do { 1195 if (ucn.bmRequestType != 0xa1) 1196 break; 1197 1198 switch (ucn.bNotification) { 1199 case UCDC_N_NETWORK_CONNECTION: 1200 DPRINTF("changing link state: %d\n", 1201 UGETW(ucn.wValue)); 1202 if_link_state_change(ifp, 1203 UGETW(ucn.wValue) ? LINK_STATE_UP : 1204 LINK_STATE_DOWN); 1205 break; 1206 1207 case UCDC_N_CONNECTION_SPEED_CHANGE: 1208 if (UGETW(ucn.wLength) != 8) 1209 break; 1210 1211 usbd_copy_out(pc, off + 1212 UCDC_NOTIFICATION_LENGTH, 1213 &ucn.data, UGETW(ucn.wLength)); 1214 downrate = UGETDW(ucn.data); 1215 uprate = UGETDW(ucn.data); 1216 if (downrate != uprate) 1217 break; 1218 1219 /* set rate */ 1220 DPRINTF("changing baudrate: %u\n", 1221 downrate); 1222 if_setbaudrate(ifp, downrate); 1223 break; 1224 1225 default: 1226 break; 1227 } 1228 } while (0); 1229 1230 off += UCDC_NOTIFICATION_LENGTH + UGETW(ucn.wLength); 1231 } 1232 1233 /* FALLTHROUGH */ 1234 case USB_ST_SETUP: 1235 tr_setup: 1236 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1237 usbd_transfer_submit(xfer); 1238 break; 1239 1240 default: /* Error */ 1241 if (error != USB_ERR_CANCELLED) { 1242 /* start clear stall */ 1243 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1244 usbd_xfer_set_stall(xfer); 1245 goto tr_setup; 1246 } 1247 break; 1248 } 1249 } 1250 1251 static void 1252 cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error) 1253 { 1254 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1255 struct usb_cdc_notification req; 1256 struct usb_page_cache *pc; 1257 uint32_t speed; 1258 int actlen; 1259 1260 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1261 1262 switch (USB_GET_STATE(xfer)) { 1263 case USB_ST_TRANSFERRED: 1264 1265 DPRINTF("Transferred %d bytes\n", actlen); 1266 1267 switch (sc->sc_notify_state) { 1268 case CDCE_NOTIFY_NETWORK_CONNECTION: 1269 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1270 break; 1271 case CDCE_NOTIFY_SPEED_CHANGE: 1272 sc->sc_notify_state = CDCE_NOTIFY_DONE; 1273 break; 1274 default: 1275 break; 1276 } 1277 1278 /* FALLTHROUGH */ 1279 case USB_ST_SETUP: 1280 tr_setup: 1281 /* 1282 * Inform host about connection. Required according to USB CDC 1283 * specification and communicating to Mac OS X USB host stack. 1284 * Some of the values seems ignored by Mac OS X though. 1285 */ 1286 if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) { 1287 req.bmRequestType = UCDC_NOTIFICATION; 1288 req.bNotification = UCDC_N_NETWORK_CONNECTION; 1289 req.wIndex[0] = sc->sc_ifaces_index[1]; 1290 req.wIndex[1] = 0; 1291 USETW(req.wValue, 1); /* Connected */ 1292 USETW(req.wLength, 0); 1293 1294 pc = usbd_xfer_get_frame(xfer, 0); 1295 usbd_copy_in(pc, 0, &req, sizeof(req)); 1296 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1297 usbd_xfer_set_frames(xfer, 1); 1298 usbd_transfer_submit(xfer); 1299 1300 } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) { 1301 req.bmRequestType = UCDC_NOTIFICATION; 1302 req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE; 1303 req.wIndex[0] = sc->sc_ifaces_index[1]; 1304 req.wIndex[1] = 0; 1305 USETW(req.wValue, 0); 1306 USETW(req.wLength, 8); 1307 1308 /* Peak theoretical bulk trasfer rate in bits/s */ 1309 if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL) 1310 speed = (13 * 512 * 8 * 1000 * 8); 1311 else 1312 speed = (19 * 64 * 1 * 1000 * 8); 1313 1314 USETDW(req.data + 0, speed); /* Upstream bit rate */ 1315 USETDW(req.data + 4, speed); /* Downstream bit rate */ 1316 1317 pc = usbd_xfer_get_frame(xfer, 0); 1318 usbd_copy_in(pc, 0, &req, sizeof(req)); 1319 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1320 usbd_xfer_set_frames(xfer, 1); 1321 usbd_transfer_submit(xfer); 1322 } 1323 break; 1324 1325 default: /* Error */ 1326 if (error != USB_ERR_CANCELLED) { 1327 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1328 /* start clear stall */ 1329 usbd_xfer_set_stall(xfer); 1330 } 1331 goto tr_setup; 1332 } 1333 break; 1334 } 1335 } 1336 1337 static int 1338 cdce_handle_request(device_t dev, 1339 const void *preq, void **pptr, uint16_t *plen, 1340 uint16_t offset, uint8_t *pstate) 1341 { 1342 struct cdce_softc *sc = device_get_softc(dev); 1343 const struct usb_device_request *req = preq; 1344 uint8_t is_complete = *pstate; 1345 1346 /* 1347 * When Mac OS X resumes after suspending it expects 1348 * to be notified again after this request. 1349 */ 1350 if (req->bmRequestType == UT_WRITE_CLASS_INTERFACE && \ 1351 req->bRequest == UCDC_NCM_SET_ETHERNET_PACKET_FILTER) { 1352 if (is_complete == 1) { 1353 mtx_lock(&sc->sc_mtx); 1354 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1355 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 1356 mtx_unlock(&sc->sc_mtx); 1357 } 1358 1359 return (0); 1360 } 1361 1362 return (ENXIO); /* use builtin handler */ 1363 } 1364 1365 #if CDCE_HAVE_NCM 1366 static void 1367 cdce_ncm_tx_zero(struct usb_page_cache *pc, 1368 uint32_t start, uint32_t end) 1369 { 1370 if (start >= CDCE_NCM_TX_MAXLEN) 1371 return; 1372 if (end > CDCE_NCM_TX_MAXLEN) 1373 end = CDCE_NCM_TX_MAXLEN; 1374 1375 usbd_frame_zero(pc, start, end - start); 1376 } 1377 1378 static uint8_t 1379 cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index) 1380 { 1381 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1382 if_t ifp = uether_getifp(&sc->sc_ue); 1383 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index); 1384 struct mbuf *m; 1385 uint32_t rem; 1386 uint32_t offset; 1387 uint32_t last_offset; 1388 uint16_t n; 1389 uint8_t retval; 1390 1391 usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index); 1392 1393 offset = sizeof(sc->sc_ncm.hdr) + 1394 sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp); 1395 1396 /* Store last valid offset before alignment */ 1397 last_offset = offset; 1398 1399 /* Align offset */ 1400 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1401 offset, sc->sc_ncm.tx_modulus); 1402 1403 /* Zero pad */ 1404 cdce_ncm_tx_zero(pc, last_offset, offset); 1405 1406 /* buffer full */ 1407 retval = 2; 1408 1409 for (n = 0; n != sc->sc_ncm.tx_nframe; n++) { 1410 /* check if end of transmit buffer is reached */ 1411 1412 if (offset >= sc->sc_ncm.tx_max) 1413 break; 1414 1415 /* compute maximum buffer size */ 1416 1417 rem = sc->sc_ncm.tx_max - offset; 1418 1419 m = if_dequeue(ifp); 1420 1421 if (m == NULL) { 1422 /* buffer not full */ 1423 retval = 1; 1424 break; 1425 } 1426 1427 if (m->m_pkthdr.len > (int)rem) { 1428 if (n == 0) { 1429 /* The frame won't fit in our buffer */ 1430 DPRINTFN(1, "Frame too big to be transmitted!\n"); 1431 m_freem(m); 1432 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1433 n--; 1434 continue; 1435 } 1436 /* Wait till next buffer becomes ready */ 1437 if_sendq_prepend(ifp, m); 1438 break; 1439 } 1440 usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len); 1441 1442 USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len); 1443 USETW(sc->sc_ncm.dp[n].wFrameIndex, offset); 1444 1445 /* Update offset */ 1446 offset += m->m_pkthdr.len; 1447 1448 /* Store last valid offset before alignment */ 1449 last_offset = offset; 1450 1451 /* Align offset */ 1452 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1453 offset, sc->sc_ncm.tx_modulus); 1454 1455 /* Zero pad */ 1456 cdce_ncm_tx_zero(pc, last_offset, offset); 1457 1458 /* 1459 * If there's a BPF listener, bounce a copy 1460 * of this frame to him: 1461 */ 1462 BPF_MTAP(ifp, m); 1463 1464 /* Free mbuf */ 1465 1466 m_freem(m); 1467 1468 /* Pre-increment interface counter */ 1469 1470 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1471 } 1472 1473 if (n == 0) 1474 return (0); 1475 1476 rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4); 1477 1478 USETW(sc->sc_ncm.dpt.wLength, rem); 1479 1480 /* zero the rest of the data pointer entries */ 1481 for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) { 1482 USETW(sc->sc_ncm.dp[n].wFrameLength, 0); 1483 USETW(sc->sc_ncm.dp[n].wFrameIndex, 0); 1484 } 1485 1486 offset = last_offset; 1487 1488 /* Align offset */ 1489 offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN); 1490 1491 /* Optimise, save bandwidth and force short termination */ 1492 if (offset >= sc->sc_ncm.tx_max) 1493 offset = sc->sc_ncm.tx_max; 1494 else 1495 offset ++; 1496 1497 /* Zero pad */ 1498 cdce_ncm_tx_zero(pc, last_offset, offset); 1499 1500 /* set frame length */ 1501 usbd_xfer_set_frame_len(xfer, index, offset); 1502 1503 /* Fill out 16-bit header */ 1504 sc->sc_ncm.hdr.dwSignature[0] = 'N'; 1505 sc->sc_ncm.hdr.dwSignature[1] = 'C'; 1506 sc->sc_ncm.hdr.dwSignature[2] = 'M'; 1507 sc->sc_ncm.hdr.dwSignature[3] = 'H'; 1508 USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr)); 1509 USETW(sc->sc_ncm.hdr.wBlockLength, offset); 1510 USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq); 1511 USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr)); 1512 1513 sc->sc_ncm.tx_seq++; 1514 1515 /* Fill out 16-bit frame table header */ 1516 sc->sc_ncm.dpt.dwSignature[0] = 'N'; 1517 sc->sc_ncm.dpt.dwSignature[1] = 'C'; 1518 sc->sc_ncm.dpt.dwSignature[2] = 'M'; 1519 sc->sc_ncm.dpt.dwSignature[3] = '0'; 1520 USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */ 1521 1522 usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr)); 1523 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt), 1524 sizeof(sc->sc_ncm.dpt)); 1525 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt), 1526 &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp)); 1527 return (retval); 1528 } 1529 1530 static void 1531 cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1532 { 1533 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1534 if_t ifp = uether_getifp(&sc->sc_ue); 1535 uint16_t x; 1536 uint8_t temp; 1537 int actlen; 1538 int aframes; 1539 1540 switch (USB_GET_STATE(xfer)) { 1541 case USB_ST_TRANSFERRED: 1542 1543 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1544 1545 DPRINTFN(10, "transfer complete: " 1546 "%u bytes in %u frames\n", actlen, aframes); 1547 1548 case USB_ST_SETUP: 1549 for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) { 1550 temp = cdce_ncm_fill_tx_frames(xfer, x); 1551 if (temp == 0) 1552 break; 1553 if (temp == 1) { 1554 x++; 1555 break; 1556 } 1557 } 1558 1559 if (x != 0) { 1560 #ifdef USB_DEBUG 1561 usbd_xfer_set_interval(xfer, cdce_tx_interval); 1562 #endif 1563 usbd_xfer_set_frames(xfer, x); 1564 usbd_transfer_submit(xfer); 1565 } 1566 break; 1567 1568 default: /* Error */ 1569 DPRINTFN(10, "Transfer error: %s\n", 1570 usbd_errstr(error)); 1571 1572 /* update error counter */ 1573 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1574 1575 if (error != USB_ERR_CANCELLED) { 1576 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1577 /* try to clear stall first */ 1578 usbd_xfer_set_stall(xfer); 1579 usbd_xfer_set_frames(xfer, 0); 1580 usbd_transfer_submit(xfer); 1581 } 1582 } 1583 break; 1584 } 1585 } 1586 1587 static void 1588 cdce_ncm_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1589 { 1590 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1591 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0); 1592 if_t ifp = uether_getifp(&sc->sc_ue); 1593 struct mbuf *m; 1594 int sumdata __usbdebug_used; 1595 int sumlen; 1596 int actlen; 1597 int aframes; 1598 int temp; 1599 int nframes; 1600 int x; 1601 int offset; 1602 1603 switch (USB_GET_STATE(xfer)) { 1604 case USB_ST_TRANSFERRED: 1605 1606 usbd_xfer_status(xfer, &actlen, &sumlen, &aframes, NULL); 1607 1608 DPRINTFN(1, "received %u bytes in %u frames\n", 1609 actlen, aframes); 1610 1611 if (actlen < (int)(sizeof(sc->sc_ncm.hdr) + 1612 sizeof(sc->sc_ncm.dpt))) { 1613 DPRINTFN(1, "frame too short\n"); 1614 goto tr_setup; 1615 } 1616 usbd_copy_out(pc, 0, &(sc->sc_ncm.hdr), 1617 sizeof(sc->sc_ncm.hdr)); 1618 1619 if ((sc->sc_ncm.hdr.dwSignature[0] != 'N') || 1620 (sc->sc_ncm.hdr.dwSignature[1] != 'C') || 1621 (sc->sc_ncm.hdr.dwSignature[2] != 'M') || 1622 (sc->sc_ncm.hdr.dwSignature[3] != 'H')) { 1623 DPRINTFN(1, "invalid HDR signature: " 1624 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1625 sc->sc_ncm.hdr.dwSignature[0], 1626 sc->sc_ncm.hdr.dwSignature[1], 1627 sc->sc_ncm.hdr.dwSignature[2], 1628 sc->sc_ncm.hdr.dwSignature[3]); 1629 goto tr_stall; 1630 } 1631 temp = UGETW(sc->sc_ncm.hdr.wBlockLength); 1632 if (temp > sumlen) { 1633 DPRINTFN(1, "unsupported block length %u/%u\n", 1634 temp, sumlen); 1635 goto tr_stall; 1636 } 1637 temp = UGETW(sc->sc_ncm.hdr.wDptIndex); 1638 if ((int)(temp + sizeof(sc->sc_ncm.dpt)) > actlen) { 1639 DPRINTFN(1, "invalid DPT index: 0x%04x\n", temp); 1640 goto tr_stall; 1641 } 1642 usbd_copy_out(pc, temp, &(sc->sc_ncm.dpt), 1643 sizeof(sc->sc_ncm.dpt)); 1644 1645 if ((sc->sc_ncm.dpt.dwSignature[0] != 'N') || 1646 (sc->sc_ncm.dpt.dwSignature[1] != 'C') || 1647 (sc->sc_ncm.dpt.dwSignature[2] != 'M') || 1648 (sc->sc_ncm.dpt.dwSignature[3] != '0')) { 1649 DPRINTFN(1, "invalid DPT signature" 1650 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1651 sc->sc_ncm.dpt.dwSignature[0], 1652 sc->sc_ncm.dpt.dwSignature[1], 1653 sc->sc_ncm.dpt.dwSignature[2], 1654 sc->sc_ncm.dpt.dwSignature[3]); 1655 goto tr_stall; 1656 } 1657 nframes = UGETW(sc->sc_ncm.dpt.wLength) / 4; 1658 1659 /* Subtract size of header and last zero padded entry */ 1660 if (nframes >= (2 + 1)) 1661 nframes -= (2 + 1); 1662 else 1663 nframes = 0; 1664 1665 DPRINTFN(1, "nframes = %u\n", nframes); 1666 1667 temp += sizeof(sc->sc_ncm.dpt); 1668 1669 if ((temp + (4 * nframes)) > actlen) 1670 goto tr_stall; 1671 1672 if (nframes > CDCE_NCM_SUBFRAMES_MAX) { 1673 DPRINTFN(1, "Truncating number of frames from %u to %u\n", 1674 nframes, CDCE_NCM_SUBFRAMES_MAX); 1675 nframes = CDCE_NCM_SUBFRAMES_MAX; 1676 } 1677 usbd_copy_out(pc, temp, &(sc->sc_ncm.dp), (4 * nframes)); 1678 1679 sumdata = 0; 1680 1681 for (x = 0; x != nframes; x++) { 1682 offset = UGETW(sc->sc_ncm.dp[x].wFrameIndex); 1683 temp = UGETW(sc->sc_ncm.dp[x].wFrameLength); 1684 1685 if ((offset == 0) || 1686 (temp < (int)sizeof(struct ether_header)) || 1687 (temp > (MCLBYTES - ETHER_ALIGN))) { 1688 DPRINTFN(1, "NULL frame detected at %d\n", x); 1689 m = NULL; 1690 /* silently ignore this frame */ 1691 continue; 1692 } else if ((offset + temp) > actlen) { 1693 DPRINTFN(1, "invalid frame " 1694 "detected at %d\n", x); 1695 m = NULL; 1696 /* silently ignore this frame */ 1697 continue; 1698 } else if (temp > (int)(MHLEN - ETHER_ALIGN)) { 1699 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1700 } else { 1701 m = m_gethdr(M_NOWAIT, MT_DATA); 1702 } 1703 1704 DPRINTFN(16, "frame %u, offset = %u, length = %u \n", 1705 x, offset, temp); 1706 1707 /* check if we have a buffer */ 1708 if (m) { 1709 m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN; 1710 m_adj(m, ETHER_ALIGN); 1711 1712 usbd_copy_out(pc, offset, m->m_data, temp); 1713 1714 /* enqueue */ 1715 uether_rxmbuf(&sc->sc_ue, m, temp); 1716 1717 sumdata += temp; 1718 } else { 1719 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1720 } 1721 } 1722 1723 DPRINTFN(1, "Efficiency: %u/%u bytes\n", sumdata, actlen); 1724 1725 case USB_ST_SETUP: 1726 tr_setup: 1727 usbd_xfer_set_frame_len(xfer, 0, sc->sc_ncm.rx_max); 1728 usbd_xfer_set_frames(xfer, 1); 1729 usbd_transfer_submit(xfer); 1730 uether_rxflush(&sc->sc_ue); /* must be last */ 1731 break; 1732 1733 default: /* Error */ 1734 DPRINTFN(1, "error = %s\n", 1735 usbd_errstr(error)); 1736 1737 if (error != USB_ERR_CANCELLED) { 1738 tr_stall: 1739 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1740 /* try to clear stall first */ 1741 usbd_xfer_set_stall(xfer); 1742 usbd_xfer_set_frames(xfer, 0); 1743 usbd_transfer_submit(xfer); 1744 } 1745 } 1746 break; 1747 } 1748 } 1749 #endif 1750