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(struct ifnet *, u_long, caddr_t); 116 static int cdce_media_change_cb(struct ifnet *); 117 static void cdce_media_status_cb(struct ifnet *, 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 devclass_t cdce_devclass; 263 static eventhandler_tag cdce_etag; 264 265 static int cdce_driver_loaded(struct module *, int, void *); 266 267 static const STRUCT_USB_HOST_ID cdce_switch_devs[] = { 268 {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3272_INIT, MSC_EJECT_HUAWEI2)}, 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_devclass, cdce_driver_loaded, 0); 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 struct ifnet *ifp = uether_getifp(ue); 576 577 /* mostly copied from usb_ethernet.c */ 578 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 579 ifp->if_start = uether_start; 580 ifp->if_ioctl = cdce_ioctl; 581 ifp->if_init = uether_init; 582 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 583 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 584 IFQ_SET_READY(&ifp->if_snd); 585 586 if ((sc->sc_flags & CDCE_FLAG_VLAN) == CDCE_FLAG_VLAN) 587 if_setcapabilitiesbit(ifp, IFCAP_VLAN_MTU, 0); 588 589 if_setcapabilitiesbit(ifp, IFCAP_LINKSTATE, 0); 590 if_setcapenable(ifp, if_getcapabilities(ifp)); 591 592 ifmedia_init(&sc->sc_media, IFM_IMASK, cdce_media_change_cb, 593 cdce_media_status_cb); 594 ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL); 595 ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO); 596 sc->sc_media.ifm_media = sc->sc_media.ifm_cur->ifm_media; 597 CDCE_LOCK(sc); 598 cdce_set_filter(ue); 599 CDCE_UNLOCK(sc); 600 601 return 0; 602 } 603 604 static int 605 cdce_attach(device_t dev) 606 { 607 struct cdce_softc *sc = device_get_softc(dev); 608 struct usb_ether *ue = &sc->sc_ue; 609 struct usb_attach_arg *uaa = device_get_ivars(dev); 610 struct usb_interface *iface; 611 const struct usb_cdc_union_descriptor *ud; 612 const struct usb_interface_descriptor *id; 613 const struct usb_cdc_ethernet_descriptor *ued; 614 const struct usb_config *pcfg; 615 uint32_t seed; 616 int error; 617 uint8_t i; 618 uint8_t data_iface_no; 619 char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */ 620 621 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 622 sc->sc_ue.ue_udev = uaa->device; 623 624 device_set_usb_desc(dev); 625 626 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 627 628 ud = usbd_find_descriptor 629 (uaa->device, NULL, uaa->info.bIfaceIndex, 630 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_UNION, 0xFF); 631 632 if ((ud == NULL) || (ud->bLength < sizeof(*ud)) || 633 (sc->sc_flags & CDCE_FLAG_NO_UNION)) { 634 DPRINTFN(1, "No union descriptor!\n"); 635 sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex; 636 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 637 goto alloc_transfers; 638 } 639 data_iface_no = ud->bSlaveInterface[0]; 640 641 for (i = 0;; i++) { 642 iface = usbd_get_iface(uaa->device, i); 643 644 if (iface) { 645 id = usbd_get_interface_descriptor(iface); 646 647 if (id && (id->bInterfaceNumber == data_iface_no)) { 648 sc->sc_ifaces_index[0] = i; 649 sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex; 650 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex); 651 break; 652 } 653 } else { 654 device_printf(dev, "no data interface found\n"); 655 goto detach; 656 } 657 } 658 659 /* 660 * <quote> 661 * 662 * The Data Class interface of a networking device shall have 663 * a minimum of two interface settings. The first setting 664 * (the default interface setting) includes no endpoints and 665 * therefore no networking traffic is exchanged whenever the 666 * default interface setting is selected. One or more 667 * additional interface settings are used for normal 668 * operation, and therefore each includes a pair of endpoints 669 * (one IN, and one OUT) to exchange network traffic. Select 670 * an alternate interface setting to initialize the network 671 * aspects of the device and to enable the exchange of 672 * network traffic. 673 * 674 * </quote> 675 * 676 * Some devices, most notably cable modems, include interface 677 * settings that have no IN or OUT endpoint, therefore loop 678 * through the list of all available interface settings 679 * looking for one with both IN and OUT endpoints. 680 */ 681 682 alloc_transfers: 683 684 pcfg = cdce_config; /* Default Configuration */ 685 686 for (i = 0; i != 32; i++) { 687 error = usbd_set_alt_interface_index(uaa->device, 688 sc->sc_ifaces_index[0], i); 689 if (error) 690 break; 691 #if CDCE_HAVE_NCM 692 if ((i == 0) && (cdce_ncm_init(sc) == 0)) 693 pcfg = cdce_ncm_config; 694 #endif 695 error = usbd_transfer_setup(uaa->device, 696 sc->sc_ifaces_index, sc->sc_xfer, 697 pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx); 698 699 if (error == 0) 700 break; 701 } 702 703 if (error || (i == 32)) { 704 device_printf(dev, "No valid alternate " 705 "setting found\n"); 706 goto detach; 707 } 708 709 ued = usbd_find_descriptor 710 (uaa->device, NULL, uaa->info.bIfaceIndex, 711 UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_ENF, 0xFF); 712 713 if ((ued == NULL) || (ued->bLength < sizeof(*ued))) { 714 error = USB_ERR_INVAL; 715 } else { 716 /* 717 * ECM 1.2 doesn't say it excludes the CRC, but states that it's 718 * normally 1514, which excludes the CRC. 719 */ 720 DPRINTF("max segsize: %d\n", UGETW(ued->wMaxSegmentSize)); 721 if (UGETW(ued->wMaxSegmentSize) >= (ETHER_MAX_LEN - ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN)) 722 sc->sc_flags |= CDCE_FLAG_VLAN; 723 724 error = usbd_req_get_string_any(uaa->device, NULL, 725 eaddr_str, sizeof(eaddr_str), ued->iMacAddress); 726 } 727 728 if (error) { 729 /* fake MAC address */ 730 731 device_printf(dev, "faking MAC address\n"); 732 seed = ticks; 733 sc->sc_ue.ue_eaddr[0] = 0x2a; 734 memcpy(&sc->sc_ue.ue_eaddr[1], &seed, sizeof(uint32_t)); 735 sc->sc_ue.ue_eaddr[5] = device_get_unit(dev); 736 737 } else { 738 memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr)); 739 740 for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) { 741 char c = eaddr_str[i]; 742 743 if ('0' <= c && c <= '9') 744 c -= '0'; 745 else if (c != 0) 746 c -= 'A' - 10; 747 else 748 break; 749 750 c &= 0xf; 751 752 if ((i & 1) == 0) 753 c <<= 4; 754 sc->sc_ue.ue_eaddr[i / 2] |= c; 755 } 756 757 if (uaa->usb_mode == USB_MODE_DEVICE) { 758 /* 759 * Do not use the same MAC address like the peer ! 760 */ 761 sc->sc_ue.ue_eaddr[5] ^= 0xFF; 762 } 763 } 764 765 ue->ue_sc = sc; 766 ue->ue_dev = dev; 767 ue->ue_udev = uaa->device; 768 ue->ue_mtx = &sc->sc_mtx; 769 ue->ue_methods = &cdce_ue_methods; 770 771 error = uether_ifattach(ue); 772 if (error) { 773 device_printf(dev, "could not attach interface\n"); 774 goto detach; 775 } 776 return (0); /* success */ 777 778 detach: 779 cdce_detach(dev); 780 return (ENXIO); /* failure */ 781 } 782 783 static int 784 cdce_detach(device_t dev) 785 { 786 struct cdce_softc *sc = device_get_softc(dev); 787 struct usb_ether *ue = &sc->sc_ue; 788 789 /* stop all USB transfers first */ 790 usbd_transfer_unsetup(sc->sc_xfer, CDCE_N_TRANSFER); 791 uether_ifdetach(ue); 792 mtx_destroy(&sc->sc_mtx); 793 794 ifmedia_removeall(&sc->sc_media); 795 796 return (0); 797 } 798 799 static void 800 cdce_start(struct usb_ether *ue) 801 { 802 struct cdce_softc *sc = uether_getsc(ue); 803 804 /* 805 * Start the USB transfers, if not already started: 806 */ 807 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_TX]); 808 usbd_transfer_start(sc->sc_xfer[CDCE_BULK_RX]); 809 } 810 811 static int 812 cdce_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 813 { 814 struct usb_ether *ue = ifp->if_softc; 815 struct cdce_softc *sc = uether_getsc(ue); 816 struct ifreq *ifr = (struct ifreq *)data; 817 int error; 818 819 error = 0; 820 821 switch(command) { 822 case SIOCGIFMEDIA: 823 case SIOCSIFMEDIA: 824 error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, command); 825 break; 826 default: 827 error = uether_ioctl(ifp, command, data); 828 break; 829 } 830 831 return (error); 832 } 833 834 static void 835 cdce_free_queue(struct mbuf **ppm, uint8_t n) 836 { 837 uint8_t x; 838 for (x = 0; x != n; x++) { 839 if (ppm[x] != NULL) { 840 m_freem(ppm[x]); 841 ppm[x] = NULL; 842 } 843 } 844 } 845 846 static int 847 cdce_media_change_cb(struct ifnet *ifp) 848 { 849 850 return (EOPNOTSUPP); 851 } 852 853 static void 854 cdce_media_status_cb(struct ifnet *ifp, struct ifmediareq *ifmr) 855 { 856 857 if ((if_getflags(ifp) & IFF_UP) == 0) 858 return; 859 860 ifmr->ifm_active = IFM_ETHER; 861 ifmr->ifm_status = IFM_AVALID; 862 ifmr->ifm_status |= 863 ifp->if_link_state == LINK_STATE_UP ? IFM_ACTIVE : 0; 864 } 865 866 static void 867 cdce_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 868 { 869 struct cdce_softc *sc = usbd_xfer_softc(xfer); 870 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 871 struct mbuf *m; 872 struct mbuf *mt; 873 uint32_t crc; 874 uint8_t x; 875 int actlen, aframes; 876 877 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 878 879 DPRINTFN(1, "\n"); 880 881 switch (USB_GET_STATE(xfer)) { 882 case USB_ST_TRANSFERRED: 883 DPRINTFN(11, "transfer complete: %u bytes in %u frames\n", 884 actlen, aframes); 885 886 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 887 888 /* free all previous TX buffers */ 889 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 890 891 /* FALLTHROUGH */ 892 case USB_ST_SETUP: 893 tr_setup: 894 for (x = 0; x != CDCE_FRAMES_MAX; x++) { 895 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 896 897 if (m == NULL) 898 break; 899 900 if (sc->sc_flags & CDCE_FLAG_ZAURUS) { 901 /* 902 * Zaurus wants a 32-bit CRC appended 903 * to every frame 904 */ 905 906 crc = cdce_m_crc32(m, 0, m->m_pkthdr.len); 907 crc = htole32(crc); 908 909 if (!m_append(m, 4, (void *)&crc)) { 910 m_freem(m); 911 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 912 continue; 913 } 914 } 915 if (m->m_len != m->m_pkthdr.len) { 916 mt = m_defrag(m, M_NOWAIT); 917 if (mt == NULL) { 918 m_freem(m); 919 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 920 continue; 921 } 922 m = mt; 923 } 924 if (m->m_pkthdr.len > MCLBYTES) { 925 m->m_pkthdr.len = MCLBYTES; 926 } 927 sc->sc_tx_buf[x] = m; 928 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 929 930 /* 931 * If there's a BPF listener, bounce a copy of 932 * this frame to him: 933 */ 934 BPF_MTAP(ifp, m); 935 } 936 if (x != 0) { 937 usbd_xfer_set_frames(xfer, x); 938 939 usbd_transfer_submit(xfer); 940 } 941 break; 942 943 default: /* Error */ 944 DPRINTFN(11, "transfer error, %s\n", 945 usbd_errstr(error)); 946 947 /* free all previous TX buffers */ 948 cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX); 949 950 /* count output errors */ 951 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 952 953 if (error != USB_ERR_CANCELLED) { 954 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 955 /* try to clear stall first */ 956 usbd_xfer_set_stall(xfer); 957 } 958 goto tr_setup; 959 } 960 break; 961 } 962 } 963 964 static int32_t 965 cdce_m_crc32_cb(void *arg, void *src, uint32_t count) 966 { 967 uint32_t *p_crc = arg; 968 969 *p_crc = crc32_raw(src, count, *p_crc); 970 return (0); 971 } 972 973 static uint32_t 974 cdce_m_crc32(struct mbuf *m, uint32_t src_offset, uint32_t src_len) 975 { 976 uint32_t crc = 0xFFFFFFFF; 977 978 (void)m_apply(m, src_offset, src_len, cdce_m_crc32_cb, &crc); 979 return (crc ^ 0xFFFFFFFF); 980 } 981 982 static void 983 cdce_init(struct usb_ether *ue) 984 { 985 struct cdce_softc *sc = uether_getsc(ue); 986 struct ifnet *ifp = uether_getifp(ue); 987 988 CDCE_LOCK_ASSERT(sc, MA_OWNED); 989 990 ifp->if_drv_flags |= IFF_DRV_RUNNING; 991 992 /* start interrupt transfer */ 993 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_RX]); 994 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 995 996 /* 997 * Stall data write direction, which depends on USB mode. 998 * 999 * Some USB host stacks (e.g. Mac OS X) don't clears stall 1000 * bit as it should, so set it in our host mode only. 1001 */ 1002 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1003 usbd_xfer_set_stall(sc->sc_xfer[CDCE_BULK_TX]); 1004 1005 /* start data transfers */ 1006 cdce_start(ue); 1007 } 1008 1009 static void 1010 cdce_stop(struct usb_ether *ue) 1011 { 1012 struct cdce_softc *sc = uether_getsc(ue); 1013 struct ifnet *ifp = uether_getifp(ue); 1014 1015 CDCE_LOCK_ASSERT(sc, MA_OWNED); 1016 1017 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1018 1019 /* 1020 * stop all the transfers, if not already stopped: 1021 */ 1022 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]); 1023 usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]); 1024 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]); 1025 usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]); 1026 } 1027 1028 static void 1029 cdce_setmulti(struct usb_ether *ue) 1030 { 1031 1032 cdce_set_filter(ue); 1033 } 1034 1035 static void 1036 cdce_setpromisc(struct usb_ether *ue) 1037 { 1038 1039 cdce_set_filter(ue); 1040 } 1041 1042 static void 1043 cdce_set_filter(struct usb_ether *ue) 1044 { 1045 struct cdce_softc *sc = uether_getsc(ue); 1046 struct ifnet *ifp = uether_getifp(ue); 1047 struct usb_device_request req; 1048 uint16_t value; 1049 1050 value = CDC_PACKET_TYPE_DIRECTED | CDC_PACKET_TYPE_BROADCAST; 1051 if (if_getflags(ifp) & IFF_PROMISC) 1052 value |= CDC_PACKET_TYPE_PROMISC; 1053 if (if_getflags(ifp) & IFF_ALLMULTI) 1054 value |= CDC_PACKET_TYPE_ALL_MULTICAST; 1055 1056 req.bmRequestType = UT_CLASS | UT_INTERFACE; 1057 req.bRequest = CDC_SET_ETHERNET_PACKET_FILTER; 1058 USETW(req.wValue, value); 1059 req.wIndex[0] = sc->sc_ifaces_index[1]; 1060 req.wIndex[1] = 0; 1061 USETW(req.wLength, 0); 1062 1063 /* 1064 * Function below will drop the sc mutex. 1065 * We can do that since we're called from a separate task, 1066 * that simply wraps the setpromisc/setmulti methods. 1067 */ 1068 usbd_do_request(sc->sc_ue.ue_udev, &sc->sc_mtx, &req, NULL); 1069 } 1070 1071 static int 1072 cdce_suspend(device_t dev) 1073 { 1074 device_printf(dev, "Suspending\n"); 1075 return (0); 1076 } 1077 1078 static int 1079 cdce_resume(device_t dev) 1080 { 1081 device_printf(dev, "Resuming\n"); 1082 return (0); 1083 } 1084 1085 static void 1086 cdce_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1087 { 1088 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1089 struct mbuf *m; 1090 uint8_t x; 1091 int actlen; 1092 int aframes; 1093 int len; 1094 1095 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1096 1097 switch (USB_GET_STATE(xfer)) { 1098 case USB_ST_TRANSFERRED: 1099 1100 DPRINTF("received %u bytes in %u frames\n", actlen, aframes); 1101 1102 for (x = 0; x != aframes; x++) { 1103 m = sc->sc_rx_buf[x]; 1104 sc->sc_rx_buf[x] = NULL; 1105 len = usbd_xfer_frame_len(xfer, x); 1106 1107 /* Strip off CRC added by Zaurus, if any */ 1108 if ((sc->sc_flags & CDCE_FLAG_ZAURUS) && len >= 14) 1109 len -= 4; 1110 1111 if (len < (int)sizeof(struct ether_header)) { 1112 m_freem(m); 1113 continue; 1114 } 1115 /* queue up mbuf */ 1116 uether_rxmbuf(&sc->sc_ue, m, len); 1117 } 1118 1119 /* FALLTHROUGH */ 1120 case USB_ST_SETUP: 1121 /* 1122 * TODO: Implement support for multi frame transfers, 1123 * when the USB hardware supports it. 1124 */ 1125 for (x = 0; x != 1; x++) { 1126 if (sc->sc_rx_buf[x] == NULL) { 1127 m = uether_newbuf(); 1128 if (m == NULL) 1129 goto tr_stall; 1130 sc->sc_rx_buf[x] = m; 1131 } else { 1132 m = sc->sc_rx_buf[x]; 1133 } 1134 1135 usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len); 1136 } 1137 /* set number of frames and start hardware */ 1138 usbd_xfer_set_frames(xfer, x); 1139 usbd_transfer_submit(xfer); 1140 /* flush any received frames */ 1141 uether_rxflush(&sc->sc_ue); 1142 break; 1143 1144 default: /* Error */ 1145 DPRINTF("error = %s\n", 1146 usbd_errstr(error)); 1147 1148 if (error != USB_ERR_CANCELLED) { 1149 tr_stall: 1150 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1151 /* try to clear stall first */ 1152 usbd_xfer_set_stall(xfer); 1153 usbd_xfer_set_frames(xfer, 0); 1154 usbd_transfer_submit(xfer); 1155 } 1156 break; 1157 } 1158 1159 /* need to free the RX-mbufs when we are cancelled */ 1160 cdce_free_queue(sc->sc_rx_buf, CDCE_FRAMES_MAX); 1161 break; 1162 } 1163 } 1164 1165 static void 1166 cdce_intr_read_callback(struct usb_xfer *xfer, usb_error_t error) 1167 { 1168 u_char buf[CDCE_IND_SIZE_MAX]; 1169 struct usb_cdc_notification ucn; 1170 struct cdce_softc *sc; 1171 struct ifnet *ifp; 1172 struct usb_page_cache *pc; 1173 int off, actlen; 1174 uint32_t downrate, uprate; 1175 1176 sc = usbd_xfer_softc(xfer); 1177 ifp = uether_getifp(&sc->sc_ue); 1178 pc = usbd_xfer_get_frame(xfer, 0); 1179 1180 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1181 1182 switch (USB_GET_STATE(xfer)) { 1183 case USB_ST_TRANSFERRED: 1184 if (USB_DEBUG_VAR) 1185 usbd_copy_out(pc, 0, buf, MIN(actlen, sizeof buf)); 1186 DPRINTF("Received %d bytes: %*D\n", actlen, 1187 (int)MIN(actlen, sizeof buf), buf, ""); 1188 1189 off = 0; 1190 while (actlen - off >= UCDC_NOTIFICATION_LENGTH) { 1191 usbd_copy_out(pc, off, &ucn, UCDC_NOTIFICATION_LENGTH); 1192 1193 do { 1194 if (ucn.bmRequestType != 0xa1) 1195 break; 1196 1197 switch (ucn.bNotification) { 1198 case UCDC_N_NETWORK_CONNECTION: 1199 DPRINTF("changing link state: %d\n", 1200 UGETW(ucn.wValue)); 1201 if_link_state_change(ifp, 1202 UGETW(ucn.wValue) ? LINK_STATE_UP : 1203 LINK_STATE_DOWN); 1204 break; 1205 1206 case UCDC_N_CONNECTION_SPEED_CHANGE: 1207 if (UGETW(ucn.wLength) != 8) 1208 break; 1209 1210 usbd_copy_out(pc, off + 1211 UCDC_NOTIFICATION_LENGTH, 1212 &ucn.data, UGETW(ucn.wLength)); 1213 downrate = UGETDW(ucn.data); 1214 uprate = UGETDW(ucn.data); 1215 if (downrate != uprate) 1216 break; 1217 1218 /* set rate */ 1219 DPRINTF("changing baudrate: %u\n", 1220 downrate); 1221 if_setbaudrate(ifp, downrate); 1222 break; 1223 1224 default: 1225 break; 1226 } 1227 } while (0); 1228 1229 off += UCDC_NOTIFICATION_LENGTH + UGETW(ucn.wLength); 1230 } 1231 1232 /* FALLTHROUGH */ 1233 case USB_ST_SETUP: 1234 tr_setup: 1235 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1236 usbd_transfer_submit(xfer); 1237 break; 1238 1239 default: /* Error */ 1240 if (error != USB_ERR_CANCELLED) { 1241 /* start clear stall */ 1242 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) 1243 usbd_xfer_set_stall(xfer); 1244 goto tr_setup; 1245 } 1246 break; 1247 } 1248 } 1249 1250 static void 1251 cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error) 1252 { 1253 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1254 struct usb_cdc_notification req; 1255 struct usb_page_cache *pc; 1256 uint32_t speed; 1257 int actlen; 1258 1259 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1260 1261 switch (USB_GET_STATE(xfer)) { 1262 case USB_ST_TRANSFERRED: 1263 1264 DPRINTF("Transferred %d bytes\n", actlen); 1265 1266 switch (sc->sc_notify_state) { 1267 case CDCE_NOTIFY_NETWORK_CONNECTION: 1268 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1269 break; 1270 case CDCE_NOTIFY_SPEED_CHANGE: 1271 sc->sc_notify_state = CDCE_NOTIFY_DONE; 1272 break; 1273 default: 1274 break; 1275 } 1276 1277 /* FALLTHROUGH */ 1278 case USB_ST_SETUP: 1279 tr_setup: 1280 /* 1281 * Inform host about connection. Required according to USB CDC 1282 * specification and communicating to Mac OS X USB host stack. 1283 * Some of the values seems ignored by Mac OS X though. 1284 */ 1285 if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) { 1286 req.bmRequestType = UCDC_NOTIFICATION; 1287 req.bNotification = UCDC_N_NETWORK_CONNECTION; 1288 req.wIndex[0] = sc->sc_ifaces_index[1]; 1289 req.wIndex[1] = 0; 1290 USETW(req.wValue, 1); /* Connected */ 1291 USETW(req.wLength, 0); 1292 1293 pc = usbd_xfer_get_frame(xfer, 0); 1294 usbd_copy_in(pc, 0, &req, sizeof(req)); 1295 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1296 usbd_xfer_set_frames(xfer, 1); 1297 usbd_transfer_submit(xfer); 1298 1299 } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) { 1300 req.bmRequestType = UCDC_NOTIFICATION; 1301 req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE; 1302 req.wIndex[0] = sc->sc_ifaces_index[1]; 1303 req.wIndex[1] = 0; 1304 USETW(req.wValue, 0); 1305 USETW(req.wLength, 8); 1306 1307 /* Peak theoretical bulk trasfer rate in bits/s */ 1308 if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL) 1309 speed = (13 * 512 * 8 * 1000 * 8); 1310 else 1311 speed = (19 * 64 * 1 * 1000 * 8); 1312 1313 USETDW(req.data + 0, speed); /* Upstream bit rate */ 1314 USETDW(req.data + 4, speed); /* Downstream bit rate */ 1315 1316 pc = usbd_xfer_get_frame(xfer, 0); 1317 usbd_copy_in(pc, 0, &req, sizeof(req)); 1318 usbd_xfer_set_frame_len(xfer, 0, sizeof(req)); 1319 usbd_xfer_set_frames(xfer, 1); 1320 usbd_transfer_submit(xfer); 1321 } 1322 break; 1323 1324 default: /* Error */ 1325 if (error != USB_ERR_CANCELLED) { 1326 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1327 /* start clear stall */ 1328 usbd_xfer_set_stall(xfer); 1329 } 1330 goto tr_setup; 1331 } 1332 break; 1333 } 1334 } 1335 1336 static int 1337 cdce_handle_request(device_t dev, 1338 const void *preq, void **pptr, uint16_t *plen, 1339 uint16_t offset, uint8_t *pstate) 1340 { 1341 struct cdce_softc *sc = device_get_softc(dev); 1342 const struct usb_device_request *req = preq; 1343 uint8_t is_complete = *pstate; 1344 1345 /* 1346 * When Mac OS X resumes after suspending it expects 1347 * to be notified again after this request. 1348 */ 1349 if (req->bmRequestType == UT_WRITE_CLASS_INTERFACE && \ 1350 req->bRequest == UCDC_NCM_SET_ETHERNET_PACKET_FILTER) { 1351 if (is_complete == 1) { 1352 mtx_lock(&sc->sc_mtx); 1353 sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE; 1354 usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]); 1355 mtx_unlock(&sc->sc_mtx); 1356 } 1357 1358 return (0); 1359 } 1360 1361 return (ENXIO); /* use builtin handler */ 1362 } 1363 1364 #if CDCE_HAVE_NCM 1365 static void 1366 cdce_ncm_tx_zero(struct usb_page_cache *pc, 1367 uint32_t start, uint32_t end) 1368 { 1369 if (start >= CDCE_NCM_TX_MAXLEN) 1370 return; 1371 if (end > CDCE_NCM_TX_MAXLEN) 1372 end = CDCE_NCM_TX_MAXLEN; 1373 1374 usbd_frame_zero(pc, start, end - start); 1375 } 1376 1377 static uint8_t 1378 cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index) 1379 { 1380 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1381 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 1382 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index); 1383 struct mbuf *m; 1384 uint32_t rem; 1385 uint32_t offset; 1386 uint32_t last_offset; 1387 uint16_t n; 1388 uint8_t retval; 1389 1390 usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index); 1391 1392 offset = sizeof(sc->sc_ncm.hdr) + 1393 sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp); 1394 1395 /* Store last valid offset before alignment */ 1396 last_offset = offset; 1397 1398 /* Align offset */ 1399 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1400 offset, sc->sc_ncm.tx_modulus); 1401 1402 /* Zero pad */ 1403 cdce_ncm_tx_zero(pc, last_offset, offset); 1404 1405 /* buffer full */ 1406 retval = 2; 1407 1408 for (n = 0; n != sc->sc_ncm.tx_nframe; n++) { 1409 /* check if end of transmit buffer is reached */ 1410 1411 if (offset >= sc->sc_ncm.tx_max) 1412 break; 1413 1414 /* compute maximum buffer size */ 1415 1416 rem = sc->sc_ncm.tx_max - offset; 1417 1418 IFQ_DRV_DEQUEUE(&(ifp->if_snd), m); 1419 1420 if (m == NULL) { 1421 /* buffer not full */ 1422 retval = 1; 1423 break; 1424 } 1425 1426 if (m->m_pkthdr.len > (int)rem) { 1427 if (n == 0) { 1428 /* The frame won't fit in our buffer */ 1429 DPRINTFN(1, "Frame too big to be transmitted!\n"); 1430 m_freem(m); 1431 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1432 n--; 1433 continue; 1434 } 1435 /* Wait till next buffer becomes ready */ 1436 IFQ_DRV_PREPEND(&(ifp->if_snd), m); 1437 break; 1438 } 1439 usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len); 1440 1441 USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len); 1442 USETW(sc->sc_ncm.dp[n].wFrameIndex, offset); 1443 1444 /* Update offset */ 1445 offset += m->m_pkthdr.len; 1446 1447 /* Store last valid offset before alignment */ 1448 last_offset = offset; 1449 1450 /* Align offset */ 1451 offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder, 1452 offset, sc->sc_ncm.tx_modulus); 1453 1454 /* Zero pad */ 1455 cdce_ncm_tx_zero(pc, last_offset, offset); 1456 1457 /* 1458 * If there's a BPF listener, bounce a copy 1459 * of this frame to him: 1460 */ 1461 BPF_MTAP(ifp, m); 1462 1463 /* Free mbuf */ 1464 1465 m_freem(m); 1466 1467 /* Pre-increment interface counter */ 1468 1469 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1470 } 1471 1472 if (n == 0) 1473 return (0); 1474 1475 rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4); 1476 1477 USETW(sc->sc_ncm.dpt.wLength, rem); 1478 1479 /* zero the rest of the data pointer entries */ 1480 for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) { 1481 USETW(sc->sc_ncm.dp[n].wFrameLength, 0); 1482 USETW(sc->sc_ncm.dp[n].wFrameIndex, 0); 1483 } 1484 1485 offset = last_offset; 1486 1487 /* Align offset */ 1488 offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN); 1489 1490 /* Optimise, save bandwidth and force short termination */ 1491 if (offset >= sc->sc_ncm.tx_max) 1492 offset = sc->sc_ncm.tx_max; 1493 else 1494 offset ++; 1495 1496 /* Zero pad */ 1497 cdce_ncm_tx_zero(pc, last_offset, offset); 1498 1499 /* set frame length */ 1500 usbd_xfer_set_frame_len(xfer, index, offset); 1501 1502 /* Fill out 16-bit header */ 1503 sc->sc_ncm.hdr.dwSignature[0] = 'N'; 1504 sc->sc_ncm.hdr.dwSignature[1] = 'C'; 1505 sc->sc_ncm.hdr.dwSignature[2] = 'M'; 1506 sc->sc_ncm.hdr.dwSignature[3] = 'H'; 1507 USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr)); 1508 USETW(sc->sc_ncm.hdr.wBlockLength, offset); 1509 USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq); 1510 USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr)); 1511 1512 sc->sc_ncm.tx_seq++; 1513 1514 /* Fill out 16-bit frame table header */ 1515 sc->sc_ncm.dpt.dwSignature[0] = 'N'; 1516 sc->sc_ncm.dpt.dwSignature[1] = 'C'; 1517 sc->sc_ncm.dpt.dwSignature[2] = 'M'; 1518 sc->sc_ncm.dpt.dwSignature[3] = '0'; 1519 USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */ 1520 1521 usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr)); 1522 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt), 1523 sizeof(sc->sc_ncm.dpt)); 1524 usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt), 1525 &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp)); 1526 return (retval); 1527 } 1528 1529 static void 1530 cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1531 { 1532 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1533 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 1534 uint16_t x; 1535 uint8_t temp; 1536 int actlen; 1537 int aframes; 1538 1539 switch (USB_GET_STATE(xfer)) { 1540 case USB_ST_TRANSFERRED: 1541 1542 usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL); 1543 1544 DPRINTFN(10, "transfer complete: " 1545 "%u bytes in %u frames\n", actlen, aframes); 1546 1547 case USB_ST_SETUP: 1548 for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) { 1549 temp = cdce_ncm_fill_tx_frames(xfer, x); 1550 if (temp == 0) 1551 break; 1552 if (temp == 1) { 1553 x++; 1554 break; 1555 } 1556 } 1557 1558 if (x != 0) { 1559 #ifdef USB_DEBUG 1560 usbd_xfer_set_interval(xfer, cdce_tx_interval); 1561 #endif 1562 usbd_xfer_set_frames(xfer, x); 1563 usbd_transfer_submit(xfer); 1564 } 1565 break; 1566 1567 default: /* Error */ 1568 DPRINTFN(10, "Transfer error: %s\n", 1569 usbd_errstr(error)); 1570 1571 /* update error counter */ 1572 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1573 1574 if (error != USB_ERR_CANCELLED) { 1575 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1576 /* try to clear stall first */ 1577 usbd_xfer_set_stall(xfer); 1578 usbd_xfer_set_frames(xfer, 0); 1579 usbd_transfer_submit(xfer); 1580 } 1581 } 1582 break; 1583 } 1584 } 1585 1586 static void 1587 cdce_ncm_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1588 { 1589 struct cdce_softc *sc = usbd_xfer_softc(xfer); 1590 struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0); 1591 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 1592 struct mbuf *m; 1593 int sumdata; 1594 int sumlen; 1595 int actlen; 1596 int aframes; 1597 int temp; 1598 int nframes; 1599 int x; 1600 int offset; 1601 1602 switch (USB_GET_STATE(xfer)) { 1603 case USB_ST_TRANSFERRED: 1604 1605 usbd_xfer_status(xfer, &actlen, &sumlen, &aframes, NULL); 1606 1607 DPRINTFN(1, "received %u bytes in %u frames\n", 1608 actlen, aframes); 1609 1610 if (actlen < (int)(sizeof(sc->sc_ncm.hdr) + 1611 sizeof(sc->sc_ncm.dpt))) { 1612 DPRINTFN(1, "frame too short\n"); 1613 goto tr_setup; 1614 } 1615 usbd_copy_out(pc, 0, &(sc->sc_ncm.hdr), 1616 sizeof(sc->sc_ncm.hdr)); 1617 1618 if ((sc->sc_ncm.hdr.dwSignature[0] != 'N') || 1619 (sc->sc_ncm.hdr.dwSignature[1] != 'C') || 1620 (sc->sc_ncm.hdr.dwSignature[2] != 'M') || 1621 (sc->sc_ncm.hdr.dwSignature[3] != 'H')) { 1622 DPRINTFN(1, "invalid HDR signature: " 1623 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1624 sc->sc_ncm.hdr.dwSignature[0], 1625 sc->sc_ncm.hdr.dwSignature[1], 1626 sc->sc_ncm.hdr.dwSignature[2], 1627 sc->sc_ncm.hdr.dwSignature[3]); 1628 goto tr_stall; 1629 } 1630 temp = UGETW(sc->sc_ncm.hdr.wBlockLength); 1631 if (temp > sumlen) { 1632 DPRINTFN(1, "unsupported block length %u/%u\n", 1633 temp, sumlen); 1634 goto tr_stall; 1635 } 1636 temp = UGETW(sc->sc_ncm.hdr.wDptIndex); 1637 if ((int)(temp + sizeof(sc->sc_ncm.dpt)) > actlen) { 1638 DPRINTFN(1, "invalid DPT index: 0x%04x\n", temp); 1639 goto tr_stall; 1640 } 1641 usbd_copy_out(pc, temp, &(sc->sc_ncm.dpt), 1642 sizeof(sc->sc_ncm.dpt)); 1643 1644 if ((sc->sc_ncm.dpt.dwSignature[0] != 'N') || 1645 (sc->sc_ncm.dpt.dwSignature[1] != 'C') || 1646 (sc->sc_ncm.dpt.dwSignature[2] != 'M') || 1647 (sc->sc_ncm.dpt.dwSignature[3] != '0')) { 1648 DPRINTFN(1, "invalid DPT signature" 1649 "0x%02x:0x%02x:0x%02x:0x%02x\n", 1650 sc->sc_ncm.dpt.dwSignature[0], 1651 sc->sc_ncm.dpt.dwSignature[1], 1652 sc->sc_ncm.dpt.dwSignature[2], 1653 sc->sc_ncm.dpt.dwSignature[3]); 1654 goto tr_stall; 1655 } 1656 nframes = UGETW(sc->sc_ncm.dpt.wLength) / 4; 1657 1658 /* Subtract size of header and last zero padded entry */ 1659 if (nframes >= (2 + 1)) 1660 nframes -= (2 + 1); 1661 else 1662 nframes = 0; 1663 1664 DPRINTFN(1, "nframes = %u\n", nframes); 1665 1666 temp += sizeof(sc->sc_ncm.dpt); 1667 1668 if ((temp + (4 * nframes)) > actlen) 1669 goto tr_stall; 1670 1671 if (nframes > CDCE_NCM_SUBFRAMES_MAX) { 1672 DPRINTFN(1, "Truncating number of frames from %u to %u\n", 1673 nframes, CDCE_NCM_SUBFRAMES_MAX); 1674 nframes = CDCE_NCM_SUBFRAMES_MAX; 1675 } 1676 usbd_copy_out(pc, temp, &(sc->sc_ncm.dp), (4 * nframes)); 1677 1678 sumdata = 0; 1679 1680 for (x = 0; x != nframes; x++) { 1681 offset = UGETW(sc->sc_ncm.dp[x].wFrameIndex); 1682 temp = UGETW(sc->sc_ncm.dp[x].wFrameLength); 1683 1684 if ((offset == 0) || 1685 (temp < (int)sizeof(struct ether_header)) || 1686 (temp > (MCLBYTES - ETHER_ALIGN))) { 1687 DPRINTFN(1, "NULL frame detected at %d\n", x); 1688 m = NULL; 1689 /* silently ignore this frame */ 1690 continue; 1691 } else if ((offset + temp) > actlen) { 1692 DPRINTFN(1, "invalid frame " 1693 "detected at %d\n", x); 1694 m = NULL; 1695 /* silently ignore this frame */ 1696 continue; 1697 } else if (temp > (int)(MHLEN - ETHER_ALIGN)) { 1698 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1699 } else { 1700 m = m_gethdr(M_NOWAIT, MT_DATA); 1701 } 1702 1703 DPRINTFN(16, "frame %u, offset = %u, length = %u \n", 1704 x, offset, temp); 1705 1706 /* check if we have a buffer */ 1707 if (m) { 1708 m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN; 1709 m_adj(m, ETHER_ALIGN); 1710 1711 usbd_copy_out(pc, offset, m->m_data, temp); 1712 1713 /* enqueue */ 1714 uether_rxmbuf(&sc->sc_ue, m, temp); 1715 1716 sumdata += temp; 1717 } else { 1718 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1719 } 1720 } 1721 1722 DPRINTFN(1, "Efficiency: %u/%u bytes\n", sumdata, actlen); 1723 1724 case USB_ST_SETUP: 1725 tr_setup: 1726 usbd_xfer_set_frame_len(xfer, 0, sc->sc_ncm.rx_max); 1727 usbd_xfer_set_frames(xfer, 1); 1728 usbd_transfer_submit(xfer); 1729 uether_rxflush(&sc->sc_ue); /* must be last */ 1730 break; 1731 1732 default: /* Error */ 1733 DPRINTFN(1, "error = %s\n", 1734 usbd_errstr(error)); 1735 1736 if (error != USB_ERR_CANCELLED) { 1737 tr_stall: 1738 if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) { 1739 /* try to clear stall first */ 1740 usbd_xfer_set_stall(xfer); 1741 usbd_xfer_set_frames(xfer, 0); 1742 usbd_transfer_submit(xfer); 1743 } 1744 } 1745 break; 1746 } 1747 } 1748 #endif 1749