1 /* 2 * Copyright (c) 2008 AnyWi Technologies 3 * Author: Andrea Guzzo <aguzzo@anywi.com> 4 * * based on uark.c 1.1 2006/08/14 08:30:22 jsg * 5 * * parts from ubsa.c 183348 2008-09-25 12:00:56Z phk * 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 * 19 * $FreeBSD$ 20 */ 21 22 /* 23 * NOTE: 24 * 25 * - The detour through the tty layer is ridiculously expensive wrt 26 * buffering due to the high speeds. 27 * 28 * We should consider adding a simple r/w device which allows 29 * attaching of PPP in a more efficient way. 30 * 31 */ 32 33 34 #include <sys/stdint.h> 35 #include <sys/stddef.h> 36 #include <sys/param.h> 37 #include <sys/queue.h> 38 #include <sys/types.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/bus.h> 42 #include <sys/linker_set.h> 43 #include <sys/module.h> 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 #include <sys/condvar.h> 47 #include <sys/sysctl.h> 48 #include <sys/sx.h> 49 #include <sys/unistd.h> 50 #include <sys/callout.h> 51 #include <sys/malloc.h> 52 #include <sys/priv.h> 53 54 #include <dev/usb/usb.h> 55 #include <dev/usb/usbdi.h> 56 #include <dev/usb/usbdi_util.h> 57 #include "usbdevs.h" 58 59 #define USB_DEBUG_VAR u3g_debug 60 #include <dev/usb/usb_debug.h> 61 #include <dev/usb/usb_process.h> 62 #include <dev/usb/usb_dynamic.h> 63 #include <dev/usb/usb_msctest.h> 64 #include <dev/usb/usb_device.h> 65 66 #include <dev/usb/serial/usb_serial.h> 67 68 #if USB_DEBUG 69 static int u3g_debug = 0; 70 71 SYSCTL_NODE(_hw_usb, OID_AUTO, u3g, CTLFLAG_RW, 0, "USB 3g"); 72 SYSCTL_INT(_hw_usb_u3g, OID_AUTO, debug, CTLFLAG_RW, 73 &u3g_debug, 0, "Debug level"); 74 #endif 75 76 #define U3G_MAXPORTS 8 77 #define U3G_CONFIG_INDEX 0 78 #define U3G_BSIZE 2048 79 80 #define U3GSP_GPRS 0 81 #define U3GSP_EDGE 1 82 #define U3GSP_CDMA 2 83 #define U3GSP_UMTS 3 84 #define U3GSP_HSDPA 4 85 #define U3GSP_HSUPA 5 86 #define U3GSP_HSPA 6 87 #define U3GSP_MAX 7 88 89 #define U3GFL_HUAWEI_INIT 0x0001 /* Init command required */ 90 #define U3GFL_SCSI_EJECT 0x0002 /* SCSI eject command required */ 91 #define U3GFL_SIERRA_INIT 0x0004 /* Init command required */ 92 #define U3GFL_SAEL_M460_INIT 0x0008 /* Init device */ 93 94 enum { 95 U3G_BULK_WR, 96 U3G_BULK_RD, 97 U3G_N_TRANSFER, 98 }; 99 100 struct u3g_softc { 101 struct ucom_super_softc sc_super_ucom; 102 struct ucom_softc sc_ucom[U3G_MAXPORTS]; 103 104 struct usb_xfer *sc_xfer[U3G_MAXPORTS][U3G_N_TRANSFER]; 105 struct usb_device *sc_udev; 106 struct mtx sc_mtx; 107 108 uint8_t sc_lsr; /* local status register */ 109 uint8_t sc_msr; /* U3G status register */ 110 uint8_t sc_numports; 111 }; 112 113 static device_probe_t u3g_probe; 114 static device_attach_t u3g_attach; 115 static device_detach_t u3g_detach; 116 117 static usb_callback_t u3g_write_callback; 118 static usb_callback_t u3g_read_callback; 119 120 static void u3g_start_read(struct ucom_softc *ucom); 121 static void u3g_stop_read(struct ucom_softc *ucom); 122 static void u3g_start_write(struct ucom_softc *ucom); 123 static void u3g_stop_write(struct ucom_softc *ucom); 124 125 static int u3g_driver_loaded(struct module *mod, int what, void *arg); 126 127 static const struct usb_config u3g_config[U3G_N_TRANSFER] = { 128 129 [U3G_BULK_WR] = { 130 .type = UE_BULK, 131 .endpoint = UE_ADDR_ANY, 132 .direction = UE_DIR_OUT, 133 .bufsize = U3G_BSIZE,/* bytes */ 134 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 135 .callback = &u3g_write_callback, 136 }, 137 138 [U3G_BULK_RD] = { 139 .type = UE_BULK, 140 .endpoint = UE_ADDR_ANY, 141 .direction = UE_DIR_IN, 142 .bufsize = U3G_BSIZE,/* bytes */ 143 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 144 .callback = &u3g_read_callback, 145 }, 146 }; 147 148 static const struct ucom_callback u3g_callback = { 149 .ucom_start_read = &u3g_start_read, 150 .ucom_stop_read = &u3g_stop_read, 151 .ucom_start_write = &u3g_start_write, 152 .ucom_stop_write = &u3g_stop_write, 153 }; 154 155 static device_method_t u3g_methods[] = { 156 DEVMETHOD(device_probe, u3g_probe), 157 DEVMETHOD(device_attach, u3g_attach), 158 DEVMETHOD(device_detach, u3g_detach), 159 {0, 0} 160 }; 161 162 static devclass_t u3g_devclass; 163 164 static driver_t u3g_driver = { 165 .name = "u3g", 166 .methods = u3g_methods, 167 .size = sizeof(struct u3g_softc), 168 }; 169 170 DRIVER_MODULE(u3g, uhub, u3g_driver, u3g_devclass, u3g_driver_loaded, 0); 171 MODULE_DEPEND(u3g, ucom, 1, 1, 1); 172 MODULE_DEPEND(u3g, usb, 1, 1, 1); 173 174 static const struct usb_device_id u3g_devs[] = { 175 #define U3G_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) } 176 /* OEM: Huawei */ 177 U3G_DEV(HUAWEI, MOBILE, U3GFL_HUAWEI_INIT), 178 U3G_DEV(HUAWEI, E180V, U3GFL_HUAWEI_INIT), 179 U3G_DEV(HUAWEI, E220, U3GFL_HUAWEI_INIT), 180 /* OEM: Option */ 181 U3G_DEV(OPTION, GT3G, 0), 182 U3G_DEV(OPTION, GT3GQUAD, 0), 183 U3G_DEV(OPTION, GT3GPLUS, 0), 184 U3G_DEV(OPTION, GTMAX36, 0), 185 U3G_DEV(OPTION, GTHSDPA, 0), 186 U3G_DEV(OPTION, GTMAXHSUPA, 0), 187 U3G_DEV(OPTION, GTMAXHSUPAE, 0), 188 U3G_DEV(OPTION, GTMAX380HSUPAE, 0), 189 U3G_DEV(OPTION, VODAFONEMC3G, 0), 190 /* OEM: Qualcomm, Inc. */ 191 U3G_DEV(QUALCOMMINC, ZTE_STOR, U3GFL_SCSI_EJECT), 192 U3G_DEV(QUALCOMMINC, CDMA_MSM, U3GFL_SCSI_EJECT), 193 /* OEM: Merlin */ 194 U3G_DEV(MERLIN, V620, 0), 195 /* OEM: Novatel */ 196 U3G_DEV(NOVATEL, CDMA_MODEM, 0), 197 U3G_DEV(NOVATEL, ES620, 0), 198 U3G_DEV(NOVATEL, MC950D, 0), 199 U3G_DEV(NOVATEL, U720, 0), 200 U3G_DEV(NOVATEL, U727, 0), 201 U3G_DEV(NOVATEL, U740, 0), 202 U3G_DEV(NOVATEL, U740_2, 0), 203 U3G_DEV(NOVATEL, U870, 0), 204 U3G_DEV(NOVATEL, V620, 0), 205 U3G_DEV(NOVATEL, V640, 0), 206 U3G_DEV(NOVATEL, V720, 0), 207 U3G_DEV(NOVATEL, V740, 0), 208 U3G_DEV(NOVATEL, X950D, 0), 209 U3G_DEV(NOVATEL, XU870, 0), 210 U3G_DEV(NOVATEL, ZEROCD, U3GFL_SCSI_EJECT), 211 U3G_DEV(NOVATEL, U760, U3GFL_SCSI_EJECT), 212 U3G_DEV(DELL, U740, 0), 213 /* OEM: Sierra Wireless: */ 214 U3G_DEV(SIERRA, AIRCARD580, 0), 215 U3G_DEV(SIERRA, AIRCARD595, 0), 216 U3G_DEV(SIERRA, AC595U, 0), 217 U3G_DEV(SIERRA, AC597E, 0), 218 U3G_DEV(SIERRA, C597, 0), 219 U3G_DEV(SIERRA, AC880, 0), 220 U3G_DEV(SIERRA, AC880E, 0), 221 U3G_DEV(SIERRA, AC880U, 0), 222 U3G_DEV(SIERRA, AC881, 0), 223 U3G_DEV(SIERRA, AC881E, 0), 224 U3G_DEV(SIERRA, AC881U, 0), 225 U3G_DEV(SIERRA, AC885U, 0), 226 U3G_DEV(SIERRA, EM5625, 0), 227 U3G_DEV(SIERRA, MC5720, 0), 228 U3G_DEV(SIERRA, MC5720_2, 0), 229 U3G_DEV(SIERRA, MC5725, 0), 230 U3G_DEV(SIERRA, MINI5725, 0), 231 U3G_DEV(SIERRA, AIRCARD875, 0), 232 U3G_DEV(SIERRA, MC8755, 0), 233 U3G_DEV(SIERRA, MC8755_2, 0), 234 U3G_DEV(SIERRA, MC8755_3, 0), 235 U3G_DEV(SIERRA, MC8765, 0), 236 U3G_DEV(SIERRA, AC875U, 0), 237 U3G_DEV(SIERRA, MC8775_2, 0), 238 U3G_DEV(SIERRA, MC8780, 0), 239 U3G_DEV(SIERRA, MC8781, 0), 240 U3G_DEV(HP, HS2300, 0), 241 /* Sierra TruInstaller device ID */ 242 U3G_DEV(SIERRA, TRUINSTALL, U3GFL_SIERRA_INIT), 243 /* PRUEBA SILABS */ 244 U3G_DEV(SILABS, SAEL, U3GFL_SAEL_M460_INIT), 245 }; 246 247 static void 248 u3g_sierra_init(struct usb_device *udev) 249 { 250 struct usb_device_request req; 251 252 req.bmRequestType = UT_VENDOR; 253 req.bRequest = UR_SET_INTERFACE; 254 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 255 USETW(req.wIndex, UHF_PORT_CONNECTION); 256 USETW(req.wLength, 0); 257 258 if (usbd_do_request_flags(udev, NULL, &req, 259 NULL, 0, NULL, USB_MS_HZ)) { 260 /* ignore any errors */ 261 } 262 return; 263 } 264 265 static void 266 u3g_huawei_init(struct usb_device *udev) 267 { 268 struct usb_device_request req; 269 270 req.bmRequestType = UT_WRITE_DEVICE; 271 req.bRequest = UR_SET_FEATURE; 272 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 273 USETW(req.wIndex, UHF_PORT_SUSPEND); 274 USETW(req.wLength, 0); 275 276 if (usbd_do_request_flags(udev, NULL, &req, 277 NULL, 0, NULL, USB_MS_HZ)) { 278 /* ignore any errors */ 279 } 280 return; 281 } 282 283 static void 284 u3g_sael_m460_init(struct usb_device *udev) 285 { 286 static const uint8_t setup[][24] = { 287 { 0x41, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 288 { 0x41, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }, 289 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 290 0x01, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 291 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 292 { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x40, 0x02 }, 293 { 0xc1, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 }, 294 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 295 { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }, 296 { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 }, 297 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 298 { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 }, 299 { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 300 0x00, 0x00, 0x00, 0x00, 0x11, 0x13 }, 301 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 302 0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 303 0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 }, 304 { 0x41, 0x12, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 }, 305 { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 }, 306 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 307 { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 }, 308 { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 309 0x00, 0x00, 0x00, 0x00, 0x11, 0x13 }, 310 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 311 0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 312 0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 }, 313 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 314 }; 315 316 struct usb_device_request req; 317 usb_error_t err; 318 uint16_t len; 319 uint8_t buf[0x300]; 320 uint8_t n; 321 322 DPRINTFN(1, "\n"); 323 324 if (usbd_req_set_alt_interface_no(udev, NULL, 0, 0)) { 325 DPRINTFN(0, "Alt setting 0 failed\n"); 326 return; 327 } 328 329 for (n = 0; n != (sizeof(setup)/sizeof(setup[0])); n++) { 330 331 memcpy(&req, setup[n], sizeof(req)); 332 333 len = UGETW(req.wLength); 334 if (req.bmRequestType & UE_DIR_IN) { 335 if (len > sizeof(buf)) { 336 DPRINTFN(0, "too small buffer\n"); 337 continue; 338 } 339 err = usbd_do_request(udev, NULL, &req, buf); 340 } else { 341 if (len > (sizeof(setup[0]) - 8)) { 342 DPRINTFN(0, "too small buffer\n"); 343 continue; 344 } 345 err = usbd_do_request(udev, NULL, &req, 346 __DECONST(uint8_t *, &setup[n][8])); 347 } 348 if (err) { 349 DPRINTFN(1, "request %u failed\n", 350 (unsigned int)n); 351 /* 352 * Some of the requests will fail. Stop doing 353 * requests when we are getting timeouts so 354 * that we don't block the explore/attach 355 * thread forever. 356 */ 357 if (err == USB_ERR_TIMEOUT) 358 break; 359 } 360 } 361 } 362 363 static int 364 u3g_lookup_huawei(struct usb_attach_arg *uaa) 365 { 366 /* Calling the lookup function will also set the driver info! */ 367 return (usbd_lookup_id_by_uaa(u3g_devs, sizeof(u3g_devs), uaa)); 368 } 369 370 /* 371 * The following function handles 3G modem devices (E220, Mobile, 372 * etc.) with auto-install flash disks for Windows/MacOSX on the first 373 * interface. After some command or some delay they change appearance 374 * to a modem. 375 */ 376 static usb_error_t 377 u3g_test_huawei_autoinst(struct usb_device *udev, 378 struct usb_attach_arg *uaa) 379 { 380 struct usb_interface *iface; 381 struct usb_interface_descriptor *id; 382 uint32_t flags; 383 384 if (udev == NULL) { 385 return (USB_ERR_INVAL); 386 } 387 iface = usbd_get_iface(udev, 0); 388 if (iface == NULL) { 389 return (USB_ERR_INVAL); 390 } 391 id = iface->idesc; 392 if (id == NULL) { 393 return (USB_ERR_INVAL); 394 } 395 if (id->bInterfaceClass != UICLASS_MASS) { 396 return (USB_ERR_INVAL); 397 } 398 if (u3g_lookup_huawei(uaa)) { 399 /* no device match */ 400 return (USB_ERR_INVAL); 401 } 402 flags = USB_GET_DRIVER_INFO(uaa); 403 404 if (flags & U3GFL_HUAWEI_INIT) { 405 u3g_huawei_init(udev); 406 } else if (flags & U3GFL_SCSI_EJECT) { 407 return (usb_test_autoinstall(udev, 0, 1)); 408 } else if (flags & U3GFL_SIERRA_INIT) { 409 u3g_sierra_init(udev); 410 } else { 411 /* no quirks */ 412 return (USB_ERR_INVAL); 413 } 414 return (0); /* success */ 415 } 416 417 static int 418 u3g_driver_loaded(struct module *mod, int what, void *arg) 419 { 420 switch (what) { 421 case MOD_LOAD: 422 /* register our autoinstall handler */ 423 usb_test_huawei_autoinst_p = &u3g_test_huawei_autoinst; 424 break; 425 case MOD_UNLOAD: 426 usb_test_huawei_unload(NULL); 427 break; 428 default: 429 return (EOPNOTSUPP); 430 } 431 return (0); 432 } 433 434 static int 435 u3g_probe(device_t self) 436 { 437 struct usb_attach_arg *uaa = device_get_ivars(self); 438 439 if (uaa->usb_mode != USB_MODE_HOST) { 440 return (ENXIO); 441 } 442 if (uaa->info.bConfigIndex != U3G_CONFIG_INDEX) { 443 return (ENXIO); 444 } 445 if (uaa->info.bInterfaceClass != UICLASS_VENDOR) { 446 return (ENXIO); 447 } 448 return (u3g_lookup_huawei(uaa)); 449 } 450 451 static int 452 u3g_attach(device_t dev) 453 { 454 struct usb_config u3g_config_tmp[U3G_N_TRANSFER]; 455 struct usb_attach_arg *uaa = device_get_ivars(dev); 456 struct u3g_softc *sc = device_get_softc(dev); 457 struct usb_interface *iface; 458 struct usb_interface_descriptor *id; 459 uint32_t iface_valid; 460 int error, flags, nports; 461 int ep, n; 462 uint8_t i; 463 464 DPRINTF("sc=%p\n", sc); 465 466 flags = USB_GET_DRIVER_INFO(uaa); 467 468 if (flags & U3GFL_SAEL_M460_INIT) 469 u3g_sael_m460_init(uaa->device); 470 471 /* copy in USB config */ 472 for (n = 0; n != U3G_N_TRANSFER; n++) 473 u3g_config_tmp[n] = u3g_config[n]; 474 475 device_set_usb_desc(dev); 476 mtx_init(&sc->sc_mtx, "u3g", NULL, MTX_DEF); 477 478 sc->sc_udev = uaa->device; 479 480 /* Claim all interfaces on the device */ 481 iface_valid = 0; 482 for (i = uaa->info.bIfaceIndex; i < USB_IFACE_MAX; i++) { 483 iface = usbd_get_iface(uaa->device, i); 484 if (iface == NULL) 485 break; 486 id = usbd_get_interface_descriptor(iface); 487 if (id == NULL || id->bInterfaceClass != UICLASS_VENDOR) 488 continue; 489 usbd_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex); 490 iface_valid |= (1<<i); 491 } 492 493 i = 0; /* interface index */ 494 ep = 0; /* endpoint index */ 495 nports = 0; /* number of ports */ 496 while (i < USB_IFACE_MAX) { 497 if ((iface_valid & (1<<i)) == 0) { 498 i++; 499 continue; 500 } 501 502 /* update BULK endpoint index */ 503 for (n = 0; n < U3G_N_TRANSFER; n++) 504 u3g_config_tmp[n].ep_index = ep; 505 506 /* try to allocate a set of BULK endpoints */ 507 error = usbd_transfer_setup(uaa->device, &i, 508 sc->sc_xfer[nports], u3g_config_tmp, U3G_N_TRANSFER, 509 &sc->sc_ucom[nports], &sc->sc_mtx); 510 if (error) { 511 /* next interface */ 512 i++; 513 ep = 0; 514 continue; 515 } 516 517 /* set stall by default */ 518 mtx_lock(&sc->sc_mtx); 519 usbd_xfer_set_stall(sc->sc_xfer[nports][U3G_BULK_WR]); 520 usbd_xfer_set_stall(sc->sc_xfer[nports][U3G_BULK_RD]); 521 mtx_unlock(&sc->sc_mtx); 522 523 nports++; /* found one port */ 524 ep++; 525 if (nports == U3G_MAXPORTS) 526 break; 527 } 528 if (nports == 0) { 529 device_printf(dev, "no ports found\n"); 530 goto detach; 531 } 532 sc->sc_numports = nports; 533 534 error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom, 535 sc->sc_numports, sc, &u3g_callback, &sc->sc_mtx); 536 if (error) { 537 DPRINTF("ucom_attach failed\n"); 538 goto detach; 539 } 540 if (sc->sc_numports > 1) 541 device_printf(dev, "Found %u ports.\n", sc->sc_numports); 542 return (0); 543 544 detach: 545 u3g_detach(dev); 546 return (ENXIO); 547 } 548 549 static int 550 u3g_detach(device_t dev) 551 { 552 struct u3g_softc *sc = device_get_softc(dev); 553 uint8_t m; 554 555 DPRINTF("sc=%p\n", sc); 556 557 /* NOTE: It is not dangerous to detach more ports than attached! */ 558 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom, U3G_MAXPORTS); 559 560 for (m = 0; m != U3G_MAXPORTS; m++) 561 usbd_transfer_unsetup(sc->sc_xfer[m], U3G_N_TRANSFER); 562 mtx_destroy(&sc->sc_mtx); 563 564 return (0); 565 } 566 567 static void 568 u3g_start_read(struct ucom_softc *ucom) 569 { 570 struct u3g_softc *sc = ucom->sc_parent; 571 572 /* start read endpoint */ 573 usbd_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]); 574 return; 575 } 576 577 static void 578 u3g_stop_read(struct ucom_softc *ucom) 579 { 580 struct u3g_softc *sc = ucom->sc_parent; 581 582 /* stop read endpoint */ 583 usbd_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]); 584 return; 585 } 586 587 static void 588 u3g_start_write(struct ucom_softc *ucom) 589 { 590 struct u3g_softc *sc = ucom->sc_parent; 591 592 usbd_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]); 593 return; 594 } 595 596 static void 597 u3g_stop_write(struct ucom_softc *ucom) 598 { 599 struct u3g_softc *sc = ucom->sc_parent; 600 601 usbd_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]); 602 return; 603 } 604 605 static void 606 u3g_write_callback(struct usb_xfer *xfer, usb_error_t error) 607 { 608 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 609 struct usb_page_cache *pc; 610 uint32_t actlen; 611 612 switch (USB_GET_STATE(xfer)) { 613 case USB_ST_TRANSFERRED: 614 case USB_ST_SETUP: 615 tr_setup: 616 pc = usbd_xfer_get_frame(xfer, 0); 617 if (ucom_get_data(ucom, pc, 0, U3G_BSIZE, &actlen)) { 618 usbd_xfer_set_frame_len(xfer, 0, actlen); 619 usbd_transfer_submit(xfer); 620 } 621 break; 622 623 default: /* Error */ 624 if (error != USB_ERR_CANCELLED) { 625 /* do a builtin clear-stall */ 626 usbd_xfer_set_stall(xfer); 627 goto tr_setup; 628 } 629 break; 630 } 631 return; 632 } 633 634 static void 635 u3g_read_callback(struct usb_xfer *xfer, usb_error_t error) 636 { 637 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 638 struct usb_page_cache *pc; 639 int actlen; 640 641 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 642 643 switch (USB_GET_STATE(xfer)) { 644 case USB_ST_TRANSFERRED: 645 pc = usbd_xfer_get_frame(xfer, 0); 646 ucom_put_data(ucom, pc, 0, actlen); 647 648 case USB_ST_SETUP: 649 tr_setup: 650 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 651 usbd_transfer_submit(xfer); 652 break; 653 654 default: /* Error */ 655 if (error != USB_ERR_CANCELLED) { 656 /* do a builtin clear-stall */ 657 usbd_xfer_set_stall(xfer); 658 goto tr_setup; 659 } 660 break; 661 } 662 return; 663 } 664