u3g.c revision 191869
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: head/sys/dev/usb/serial/u3g.c 191869 2009-05-07 02:15:58Z thompsa $ 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#include "usbdevs.h" 34#include <dev/usb/usb.h> 35#include <dev/usb/usb_mfunc.h> 36#include <dev/usb/usb_error.h> 37 38#define USB_DEBUG_VAR u3g_debug 39 40#include <dev/usb/usb_core.h> 41#include <dev/usb/usb_debug.h> 42#include <dev/usb/usb_process.h> 43#include <dev/usb/usb_request.h> 44#include <dev/usb/usb_lookup.h> 45#include <dev/usb/usb_util.h> 46#include <dev/usb/usb_busdma.h> 47#include <dev/usb/usb_msctest.h> 48#include <dev/usb/usb_dynamic.h> 49#include <dev/usb/usb_device.h> 50 51#include <dev/usb/serial/usb_serial.h> 52 53#if USB_DEBUG 54static int u3g_debug = 0; 55 56SYSCTL_NODE(_hw_usb2, OID_AUTO, u3g, CTLFLAG_RW, 0, "USB 3g"); 57SYSCTL_INT(_hw_usb2_u3g, OID_AUTO, debug, CTLFLAG_RW, 58 &u3g_debug, 0, "Debug level"); 59#endif 60 61#define U3G_MAXPORTS 4 62#define U3G_CONFIG_INDEX 0 63#define U3G_BSIZE 2048 64 65#define U3GSP_GPRS 0 66#define U3GSP_EDGE 1 67#define U3GSP_CDMA 2 68#define U3GSP_UMTS 3 69#define U3GSP_HSDPA 4 70#define U3GSP_HSUPA 5 71#define U3GSP_HSPA 6 72#define U3GSP_MAX 7 73 74#define U3GFL_HUAWEI_INIT 0x0001 /* Init command required */ 75#define U3GFL_SCSI_EJECT 0x0002 /* SCSI eject command required */ 76#define U3GFL_SIERRA_INIT 0x0004 /* Init command required */ 77#define U3GFL_SAEL_M460_INIT 0x0008 /* Init device */ 78 79enum { 80 U3G_BULK_WR, 81 U3G_BULK_RD, 82 U3G_N_TRANSFER, 83}; 84 85struct u3g_softc { 86 struct usb2_com_super_softc sc_super_ucom; 87 struct usb2_com_softc sc_ucom[U3G_MAXPORTS]; 88 89 struct usb2_xfer *sc_xfer[U3G_MAXPORTS][U3G_N_TRANSFER]; 90 struct usb2_device *sc_udev; 91 struct mtx sc_mtx; 92 93 uint8_t sc_lsr; /* local status register */ 94 uint8_t sc_msr; /* U3G status register */ 95 uint8_t sc_numports; 96}; 97 98static device_probe_t u3g_probe; 99static device_attach_t u3g_attach; 100static device_detach_t u3g_detach; 101 102static usb2_callback_t u3g_write_callback; 103static usb2_callback_t u3g_read_callback; 104 105static void u3g_start_read(struct usb2_com_softc *ucom); 106static void u3g_stop_read(struct usb2_com_softc *ucom); 107static void u3g_start_write(struct usb2_com_softc *ucom); 108static void u3g_stop_write(struct usb2_com_softc *ucom); 109 110static int u3g_driver_loaded(struct module *mod, int what, void *arg); 111 112static const struct usb2_config u3g_config[U3G_N_TRANSFER] = { 113 114 [U3G_BULK_WR] = { 115 .type = UE_BULK, 116 .endpoint = UE_ADDR_ANY, 117 .direction = UE_DIR_OUT, 118 .bufsize = U3G_BSIZE,/* bytes */ 119 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 120 .callback = &u3g_write_callback, 121 }, 122 123 [U3G_BULK_RD] = { 124 .type = UE_BULK, 125 .endpoint = UE_ADDR_ANY, 126 .direction = UE_DIR_IN, 127 .bufsize = U3G_BSIZE,/* bytes */ 128 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 129 .callback = &u3g_read_callback, 130 }, 131}; 132 133static const struct usb2_com_callback u3g_callback = { 134 .usb2_com_start_read = &u3g_start_read, 135 .usb2_com_stop_read = &u3g_stop_read, 136 .usb2_com_start_write = &u3g_start_write, 137 .usb2_com_stop_write = &u3g_stop_write, 138}; 139 140static device_method_t u3g_methods[] = { 141 DEVMETHOD(device_probe, u3g_probe), 142 DEVMETHOD(device_attach, u3g_attach), 143 DEVMETHOD(device_detach, u3g_detach), 144 {0, 0} 145}; 146 147static devclass_t u3g_devclass; 148 149static driver_t u3g_driver = { 150 .name = "u3g", 151 .methods = u3g_methods, 152 .size = sizeof(struct u3g_softc), 153}; 154 155DRIVER_MODULE(u3g, uhub, u3g_driver, u3g_devclass, u3g_driver_loaded, 0); 156MODULE_DEPEND(u3g, ucom, 1, 1, 1); 157MODULE_DEPEND(u3g, usb, 1, 1, 1); 158 159static const struct usb2_device_id u3g_devs[] = { 160#define U3G_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) } 161 /* OEM: Option */ 162 U3G_DEV(OPTION, GT3G, 0), 163 U3G_DEV(OPTION, GT3GQUAD, 0), 164 U3G_DEV(OPTION, GT3GPLUS, 0), 165 U3G_DEV(OPTION, GTMAX36, 0), 166 U3G_DEV(OPTION, GTMAXHSUPA, 0), 167 U3G_DEV(OPTION, VODAFONEMC3G, 0), 168 /* OEM: Qualcomm, Inc. */ 169 U3G_DEV(QUALCOMMINC, ZTE_STOR, U3GFL_SCSI_EJECT), 170 U3G_DEV(QUALCOMMINC, CDMA_MSM, U3GFL_SCSI_EJECT), 171 /* OEM: Huawei */ 172 U3G_DEV(HUAWEI, MOBILE, U3GFL_HUAWEI_INIT), 173 U3G_DEV(HUAWEI, E220, U3GFL_HUAWEI_INIT), 174 /* OEM: Novatel */ 175 U3G_DEV(NOVATEL, CDMA_MODEM, 0), 176 U3G_DEV(NOVATEL, ES620, 0), 177 U3G_DEV(NOVATEL, MC950D, 0), 178 U3G_DEV(NOVATEL, U720, 0), 179 U3G_DEV(NOVATEL, U727, 0), 180 U3G_DEV(NOVATEL, U740, 0), 181 U3G_DEV(NOVATEL, U740_2, 0), 182 U3G_DEV(NOVATEL, U870, 0), 183 U3G_DEV(NOVATEL, V620, 0), 184 U3G_DEV(NOVATEL, V640, 0), 185 U3G_DEV(NOVATEL, V720, 0), 186 U3G_DEV(NOVATEL, V740, 0), 187 U3G_DEV(NOVATEL, X950D, 0), 188 U3G_DEV(NOVATEL, XU870, 0), 189 U3G_DEV(NOVATEL, ZEROCD, U3GFL_SCSI_EJECT), 190 U3G_DEV(DELL, U740, 0), 191 /* OEM: Merlin */ 192 U3G_DEV(MERLIN, V620, 0), 193 /* OEM: Sierra Wireless: */ 194 U3G_DEV(SIERRA, AIRCARD580, 0), 195 U3G_DEV(SIERRA, AIRCARD595, 0), 196 U3G_DEV(SIERRA, AC595U, 0), 197 U3G_DEV(SIERRA, AC597E, 0), 198 U3G_DEV(SIERRA, C597, 0), 199 U3G_DEV(SIERRA, AC880, 0), 200 U3G_DEV(SIERRA, AC880E, 0), 201 U3G_DEV(SIERRA, AC880U, 0), 202 U3G_DEV(SIERRA, AC881, 0), 203 U3G_DEV(SIERRA, AC881E, 0), 204 U3G_DEV(SIERRA, AC881U, 0), 205 U3G_DEV(SIERRA, EM5625, 0), 206 U3G_DEV(SIERRA, MC5720, 0), 207 U3G_DEV(SIERRA, MC5720_2, 0), 208 U3G_DEV(SIERRA, MC5725, 0), 209 U3G_DEV(SIERRA, MINI5725, 0), 210 U3G_DEV(SIERRA, AIRCARD875, 0), 211 U3G_DEV(SIERRA, MC8755, 0), 212 U3G_DEV(SIERRA, MC8755_2, 0), 213 U3G_DEV(SIERRA, MC8755_3, 0), 214 U3G_DEV(SIERRA, MC8765, 0), 215 U3G_DEV(SIERRA, AC875U, 0), 216 U3G_DEV(SIERRA, MC8775_2, 0), 217 U3G_DEV(SIERRA, MC8780, 0), 218 U3G_DEV(SIERRA, MC8781, 0), 219 U3G_DEV(HP, HS2300, 0), 220 /* Sierra TruInstaller device ID */ 221 U3G_DEV(SIERRA, TRUINSTALL, U3GFL_SIERRA_INIT), 222 /* PRUEBA SILABS */ 223 U3G_DEV(SILABS, SAEL, U3GFL_SAEL_M460_INIT), 224}; 225 226static void 227u3g_sierra_init(struct usb2_device *udev) 228{ 229 struct usb2_device_request req; 230 231 DPRINTFN(0, "\n"); 232 233 req.bmRequestType = UT_VENDOR; 234 req.bRequest = UR_SET_INTERFACE; 235 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 236 USETW(req.wIndex, UHF_PORT_CONNECTION); 237 USETW(req.wLength, 0); 238 239 if (usb2_do_request_flags(udev, NULL, &req, 240 NULL, 0, NULL, USB_MS_HZ)) { 241 /* ignore any errors */ 242 } 243 return; 244} 245 246static void 247u3g_huawei_init(struct usb2_device *udev) 248{ 249 struct usb2_device_request req; 250 251 DPRINTFN(0, "\n"); 252 253 req.bmRequestType = UT_WRITE_DEVICE; 254 req.bRequest = UR_SET_FEATURE; 255 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 256 USETW(req.wIndex, UHF_PORT_SUSPEND); 257 USETW(req.wLength, 0); 258 259 if (usb2_do_request_flags(udev, NULL, &req, 260 NULL, 0, NULL, USB_MS_HZ)) { 261 /* ignore any errors */ 262 } 263 return; 264} 265 266static void 267u3g_sael_m460_init(struct usb2_device *udev) 268{ 269 static const uint8_t setup[][24] = { 270 { 0x41, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 271 { 0x41, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }, 272 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 273 0x01, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 274 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 275 { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x40, 0x02 }, 276 { 0xc1, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 }, 277 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 278 { 0xc1, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }, 279 { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 }, 280 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 281 { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 }, 282 { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 283 0x00, 0x00, 0x00, 0x00, 0x11, 0x13 }, 284 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 285 0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 286 0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 }, 287 { 0x41, 0x12, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 }, 288 { 0x41, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00 }, 289 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 290 { 0x41, 0x03, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00 }, 291 { 0x41, 0x19, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 292 0x00, 0x00, 0x00, 0x00, 0x11, 0x13 }, 293 { 0x41, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 294 0x09, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 295 0x0a, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00 }, 296 { 0x41, 0x07, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 }, 297 }; 298 299 struct usb2_device_request req; 300 usb2_error_t err; 301 uint16_t len; 302 uint8_t buf[0x300]; 303 uint8_t n; 304 305 DPRINTFN(1, "\n"); 306 307 if (usb2_req_set_alt_interface_no(udev, NULL, 0, 0)) { 308 DPRINTFN(0, "Alt setting 0 failed\n"); 309 return; 310 } 311 312 for (n = 0; n != (sizeof(setup)/sizeof(setup[0])); n++) { 313 314 memcpy(&req, setup[n], sizeof(req)); 315 316 len = UGETW(req.wLength); 317 if (req.bmRequestType & UE_DIR_IN) { 318 if (len > sizeof(buf)) { 319 DPRINTFN(0, "too small buffer\n"); 320 continue; 321 } 322 err = usb2_do_request(udev, NULL, &req, buf); 323 } else { 324 if (len > (sizeof(setup[0]) - 8)) { 325 DPRINTFN(0, "too small buffer\n"); 326 continue; 327 } 328 err = usb2_do_request(udev, NULL, &req, 329 __DECONST(uint8_t *, &setup[n][8])); 330 } 331 if (err) { 332 DPRINTFN(1, "request %u failed\n", 333 (unsigned int)n); 334 /* 335 * Some of the requests will fail. Stop doing 336 * requests when we are getting timeouts so 337 * that we don't block the explore/attach 338 * thread forever. 339 */ 340 if (err == USB_ERR_TIMEOUT) 341 break; 342 } 343 } 344} 345 346static int 347u3g_lookup_huawei(struct usb2_attach_arg *uaa) 348{ 349 /* Calling the lookup function will also set the driver info! */ 350 return (usb2_lookup_id_by_uaa(u3g_devs, sizeof(u3g_devs), uaa)); 351} 352 353/* 354 * The following function handles 3G modem devices (E220, Mobile, 355 * etc.) with auto-install flash disks for Windows/MacOSX on the first 356 * interface. After some command or some delay they change appearance 357 * to a modem. 358 */ 359static usb2_error_t 360u3g_test_huawei_autoinst(struct usb2_device *udev, 361 struct usb2_attach_arg *uaa) 362{ 363 struct usb2_interface *iface; 364 struct usb2_interface_descriptor *id; 365 uint32_t flags; 366 367 if (udev == NULL) { 368 return (USB_ERR_INVAL); 369 } 370 iface = usb2_get_iface(udev, 0); 371 if (iface == NULL) { 372 return (USB_ERR_INVAL); 373 } 374 id = iface->idesc; 375 if (id == NULL) { 376 return (USB_ERR_INVAL); 377 } 378 if (id->bInterfaceClass != UICLASS_MASS) { 379 return (USB_ERR_INVAL); 380 } 381 if (u3g_lookup_huawei(uaa)) { 382 /* no device match */ 383 return (USB_ERR_INVAL); 384 } 385 flags = USB_GET_DRIVER_INFO(uaa); 386 387 if (flags & U3GFL_HUAWEI_INIT) { 388 u3g_huawei_init(udev); 389 } else if (flags & U3GFL_SCSI_EJECT) { 390 return (usb2_test_autoinstall(udev, 0, 1)); 391 } else if (flags & U3GFL_SIERRA_INIT) { 392 u3g_sierra_init(udev); 393 } else { 394 /* no quirks */ 395 return (USB_ERR_INVAL); 396 } 397 return (0); /* success */ 398} 399 400static int 401u3g_driver_loaded(struct module *mod, int what, void *arg) 402{ 403 switch (what) { 404 case MOD_LOAD: 405 /* register our autoinstall handler */ 406 usb2_test_huawei_autoinst_p = &u3g_test_huawei_autoinst; 407 break; 408 case MOD_UNLOAD: 409 usb2_test_huawei_unload(NULL); 410 break; 411 default: 412 return (EOPNOTSUPP); 413 } 414 return (0); 415} 416 417static int 418u3g_probe(device_t self) 419{ 420 struct usb2_attach_arg *uaa = device_get_ivars(self); 421 422 if (uaa->usb2_mode != USB_MODE_HOST) { 423 return (ENXIO); 424 } 425 if (uaa->info.bConfigIndex != U3G_CONFIG_INDEX) { 426 return (ENXIO); 427 } 428 if (uaa->info.bInterfaceClass != UICLASS_VENDOR) { 429 return (ENXIO); 430 } 431 return (u3g_lookup_huawei(uaa)); 432} 433 434static int 435u3g_attach(device_t dev) 436{ 437 struct usb2_config u3g_config_tmp[U3G_N_TRANSFER]; 438 struct usb2_attach_arg *uaa = device_get_ivars(dev); 439 struct u3g_softc *sc = device_get_softc(dev); 440 struct usb2_interface *iface; 441 struct usb2_interface_descriptor *id; 442 int error, iface_valid, flags, nports; 443 int ep, n; 444 uint8_t i; 445 446 DPRINTF("sc=%p\n", sc); 447 448 flags = USB_GET_DRIVER_INFO(uaa); 449 450 if (flags & U3GFL_SAEL_M460_INIT) 451 u3g_sael_m460_init(uaa->device); 452 453 /* copy in USB config */ 454 for (n = 0; n != U3G_N_TRANSFER; n++) 455 u3g_config_tmp[n] = u3g_config[n]; 456 457 device_set_usb2_desc(dev); 458 mtx_init(&sc->sc_mtx, "u3g", NULL, MTX_DEF); 459 460 sc->sc_udev = uaa->device; 461 462 /* Claim all interfaces on the device */ 463 iface_valid = 0; 464 for (i = uaa->info.bIfaceIndex; i < USB_IFACE_MAX; i++) { 465 iface = usb2_get_iface(uaa->device, i); 466 if (iface == NULL) 467 break; 468 id = usb2_get_interface_descriptor(iface); 469 if (id == NULL || id->bInterfaceClass != UICLASS_VENDOR) 470 continue; 471 usb2_set_parent_iface(uaa->device, i, uaa->info.bIfaceIndex); 472 iface_valid |= (1<<i); 473 } 474 475 i = 0; /* interface index */ 476 ep = 0; /* endpoint index */ 477 nports = 0; /* number of ports */ 478 while (i < USB_IFACE_MAX) { 479 if ((iface_valid & (1<<i)) == 0) { 480 i++; 481 continue; 482 } 483 484 /* update BULK endpoint index */ 485 for (n = 0; n < U3G_N_TRANSFER; n++) 486 u3g_config_tmp[n].ep_index = ep; 487 488 /* try to allocate a set of BULK endpoints */ 489 error = usb2_transfer_setup(uaa->device, &i, 490 sc->sc_xfer[nports], u3g_config_tmp, U3G_N_TRANSFER, 491 &sc->sc_ucom[nports], &sc->sc_mtx); 492 if (error) { 493 /* next interface */ 494 i++; 495 ep = 0; 496 continue; 497 } 498 499 /* set stall by default */ 500 mtx_lock(&sc->sc_mtx); 501 usb2_transfer_set_stall(sc->sc_xfer[nports][U3G_BULK_WR]); 502 usb2_transfer_set_stall(sc->sc_xfer[nports][U3G_BULK_RD]); 503 mtx_unlock(&sc->sc_mtx); 504 505 nports++; /* found one port */ 506 ep++; 507 if (nports == U3G_MAXPORTS) 508 break; 509 } 510 if (nports == 0) { 511 device_printf(dev, "no ports found\n"); 512 goto detach; 513 } 514 sc->sc_numports = nports; 515 516 error = usb2_com_attach(&sc->sc_super_ucom, sc->sc_ucom, 517 sc->sc_numports, sc, &u3g_callback, &sc->sc_mtx); 518 if (error) { 519 DPRINTF("usb2_com_attach failed\n"); 520 goto detach; 521 } 522 if (sc->sc_numports > 1) 523 device_printf(dev, "Found %u ports.\n", sc->sc_numports); 524 return (0); 525 526detach: 527 u3g_detach(dev); 528 return (ENXIO); 529} 530 531static int 532u3g_detach(device_t dev) 533{ 534 struct u3g_softc *sc = device_get_softc(dev); 535 uint8_t m; 536 537 DPRINTF("sc=%p\n", sc); 538 539 /* NOTE: It is not dangerous to detach more ports than attached! */ 540 usb2_com_detach(&sc->sc_super_ucom, sc->sc_ucom, U3G_MAXPORTS); 541 542 for (m = 0; m != U3G_MAXPORTS; m++) 543 usb2_transfer_unsetup(sc->sc_xfer[m], U3G_N_TRANSFER); 544 mtx_destroy(&sc->sc_mtx); 545 546 return (0); 547} 548 549static void 550u3g_start_read(struct usb2_com_softc *ucom) 551{ 552 struct u3g_softc *sc = ucom->sc_parent; 553 554 /* start read endpoint */ 555 usb2_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]); 556 return; 557} 558 559static void 560u3g_stop_read(struct usb2_com_softc *ucom) 561{ 562 struct u3g_softc *sc = ucom->sc_parent; 563 564 /* stop read endpoint */ 565 usb2_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_RD]); 566 return; 567} 568 569static void 570u3g_start_write(struct usb2_com_softc *ucom) 571{ 572 struct u3g_softc *sc = ucom->sc_parent; 573 574 usb2_transfer_start(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]); 575 return; 576} 577 578static void 579u3g_stop_write(struct usb2_com_softc *ucom) 580{ 581 struct u3g_softc *sc = ucom->sc_parent; 582 583 usb2_transfer_stop(sc->sc_xfer[ucom->sc_local_unit][U3G_BULK_WR]); 584 return; 585} 586 587static void 588u3g_write_callback(struct usb2_xfer *xfer) 589{ 590 struct usb2_com_softc *ucom = xfer->priv_sc; 591 uint32_t actlen; 592 593 switch (USB_GET_STATE(xfer)) { 594 case USB_ST_TRANSFERRED: 595 case USB_ST_SETUP: 596tr_setup: 597 if (usb2_com_get_data(ucom, xfer->frbuffers, 0, 598 U3G_BSIZE, &actlen)) { 599 xfer->frlengths[0] = actlen; 600 usb2_start_hardware(xfer); 601 } 602 break; 603 604 default: /* Error */ 605 if (xfer->error != USB_ERR_CANCELLED) { 606 /* do a builtin clear-stall */ 607 xfer->flags.stall_pipe = 1; 608 goto tr_setup; 609 } 610 break; 611 } 612 return; 613} 614 615static void 616u3g_read_callback(struct usb2_xfer *xfer) 617{ 618 struct usb2_com_softc *ucom = xfer->priv_sc; 619 620 switch (USB_GET_STATE(xfer)) { 621 case USB_ST_TRANSFERRED: 622 usb2_com_put_data(ucom, xfer->frbuffers, 0, xfer->actlen); 623 624 case USB_ST_SETUP: 625tr_setup: 626 xfer->frlengths[0] = xfer->max_data_length; 627 usb2_start_hardware(xfer); 628 break; 629 630 default: /* Error */ 631 if (xfer->error != USB_ERR_CANCELLED) { 632 /* do a builtin clear-stall */ 633 xfer->flags.stall_pipe = 1; 634 goto tr_setup; 635 } 636 break; 637 } 638 return; 639} 640