1 /* $NetBSD: uvisor.c,v 1.9 2001/01/23 14:04:14 augustss Exp $ */ 2 /* $FreeBSD$ */ 3 4 /* Also already merged from NetBSD: 5 * $NetBSD: uvisor.c,v 1.12 2001/11/13 06:24:57 lukem Exp $ 6 * $NetBSD: uvisor.c,v 1.13 2002/02/11 15:11:49 augustss Exp $ 7 * $NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $ 8 * $NetBSD: uvisor.c,v 1.15 2002/06/16 15:01:31 augustss Exp $ 9 * $NetBSD: uvisor.c,v 1.16 2002/07/11 21:14:36 augustss Exp $ 10 * $NetBSD: uvisor.c,v 1.17 2002/08/13 11:38:15 augustss Exp $ 11 * $NetBSD: uvisor.c,v 1.18 2003/02/05 00:50:14 augustss Exp $ 12 * $NetBSD: uvisor.c,v 1.19 2003/02/07 18:12:37 augustss Exp $ 13 * $NetBSD: uvisor.c,v 1.20 2003/04/11 01:30:10 simonb Exp $ 14 */ 15 16 /*- 17 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 18 * 19 * Copyright (c) 2000 The NetBSD Foundation, Inc. 20 * All rights reserved. 21 * 22 * This code is derived from software contributed to The NetBSD Foundation 23 * by Lennart Augustsson (lennart@augustsson.net) at 24 * Carlstedt Research & Technology. 25 * 26 * Redistribution and use in source and binary forms, with or without 27 * modification, are permitted provided that the following conditions 28 * are met: 29 * 1. Redistributions of source code must retain the above copyright 30 * notice, this list of conditions and the following disclaimer. 31 * 2. Redistributions in binary form must reproduce the above copyright 32 * notice, this list of conditions and the following disclaimer in the 33 * documentation and/or other materials provided with the distribution. 34 * 35 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 36 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 37 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 39 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 40 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 41 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 42 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 43 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 44 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 45 * POSSIBILITY OF SUCH DAMAGE. 46 */ 47 48 /* 49 * Handspring Visor (Palmpilot compatible PDA) driver 50 */ 51 52 #include <sys/stdint.h> 53 #include <sys/stddef.h> 54 #include <sys/param.h> 55 #include <sys/queue.h> 56 #include <sys/types.h> 57 #include <sys/systm.h> 58 #include <sys/kernel.h> 59 #include <sys/bus.h> 60 #include <sys/module.h> 61 #include <sys/lock.h> 62 #include <sys/mutex.h> 63 #include <sys/condvar.h> 64 #include <sys/sysctl.h> 65 #include <sys/sx.h> 66 #include <sys/unistd.h> 67 #include <sys/callout.h> 68 #include <sys/malloc.h> 69 #include <sys/priv.h> 70 71 #include <dev/usb/usb.h> 72 #include <dev/usb/usbdi.h> 73 #include <dev/usb/usbdi_util.h> 74 #include "usbdevs.h" 75 76 #define USB_DEBUG_VAR uvisor_debug 77 #include <dev/usb/usb_debug.h> 78 #include <dev/usb/usb_process.h> 79 80 #include <dev/usb/serial/usb_serial.h> 81 82 #ifdef USB_DEBUG 83 static int uvisor_debug = 0; 84 85 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvisor, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 86 "USB uvisor"); 87 SYSCTL_INT(_hw_usb_uvisor, OID_AUTO, debug, CTLFLAG_RWTUN, 88 &uvisor_debug, 0, "Debug level"); 89 #endif 90 91 #define UVISOR_CONFIG_INDEX 0 92 #define UVISOR_IFACE_INDEX 0 93 94 /* 95 * The following buffer sizes are hardcoded due to the way the Palm 96 * firmware works. It looks like the device is not short terminating 97 * the data transferred. 98 */ 99 #define UVISORIBUFSIZE 0 /* Use wMaxPacketSize */ 100 #define UVISOROBUFSIZE 32 /* bytes */ 101 #define UVISOROFRAMES 32 /* units */ 102 103 /* From the Linux driver */ 104 /* 105 * UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that 106 * are available to be transferred to the host for the specified endpoint. 107 * Currently this is not used, and always returns 0x0001 108 */ 109 #define UVISOR_REQUEST_BYTES_AVAILABLE 0x01 110 111 /* 112 * UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host 113 * is now closing the pipe. An empty packet is sent in response. 114 */ 115 #define UVISOR_CLOSE_NOTIFICATION 0x02 116 117 /* 118 * UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to 119 * get the endpoints used by the connection. 120 */ 121 #define UVISOR_GET_CONNECTION_INFORMATION 0x03 122 123 /* 124 * UVISOR_GET_CONNECTION_INFORMATION returns data in the following format 125 */ 126 #define UVISOR_MAX_CONN 8 127 struct uvisor_connection_info { 128 uWord num_ports; 129 struct { 130 uByte port_function_id; 131 uByte port; 132 } __packed connections[UVISOR_MAX_CONN]; 133 } __packed; 134 135 #define UVISOR_CONNECTION_INFO_SIZE 18 136 137 /* struct uvisor_connection_info.connection[x].port defines: */ 138 #define UVISOR_ENDPOINT_1 0x01 139 #define UVISOR_ENDPOINT_2 0x02 140 141 /* struct uvisor_connection_info.connection[x].port_function_id defines: */ 142 #define UVISOR_FUNCTION_GENERIC 0x00 143 #define UVISOR_FUNCTION_DEBUGGER 0x01 144 #define UVISOR_FUNCTION_HOTSYNC 0x02 145 #define UVISOR_FUNCTION_CONSOLE 0x03 146 #define UVISOR_FUNCTION_REMOTE_FILE_SYS 0x04 147 148 /* 149 * Unknown PalmOS stuff. 150 */ 151 #define UVISOR_GET_PALM_INFORMATION 0x04 152 #define UVISOR_GET_PALM_INFORMATION_LEN 0x44 153 154 struct uvisor_palm_connection_info { 155 uByte num_ports; 156 uByte endpoint_numbers_different; 157 uWord reserved1; 158 struct { 159 uDWord port_function_id; 160 uByte port; 161 uByte end_point_info; 162 uWord reserved; 163 } __packed connections[UVISOR_MAX_CONN]; 164 } __packed; 165 166 enum { 167 UVISOR_BULK_DT_WR, 168 UVISOR_BULK_DT_RD, 169 UVISOR_N_TRANSFER, 170 }; 171 172 struct uvisor_softc { 173 struct ucom_super_softc sc_super_ucom; 174 struct ucom_softc sc_ucom; 175 176 struct usb_xfer *sc_xfer[UVISOR_N_TRANSFER]; 177 struct usb_device *sc_udev; 178 struct mtx sc_mtx; 179 180 uint16_t sc_flag; 181 #define UVISOR_FLAG_PALM4 0x0001 182 #define UVISOR_FLAG_VISOR 0x0002 183 #define UVISOR_FLAG_PALM35 0x0004 184 #define UVISOR_FLAG_SEND_NOTIFY 0x0008 185 186 uint8_t sc_iface_no; 187 uint8_t sc_iface_index; 188 }; 189 190 /* prototypes */ 191 192 static device_probe_t uvisor_probe; 193 static device_attach_t uvisor_attach; 194 static device_detach_t uvisor_detach; 195 static void uvisor_free_softc(struct uvisor_softc *); 196 197 static usb_callback_t uvisor_write_callback; 198 static usb_callback_t uvisor_read_callback; 199 200 static usb_error_t uvisor_init(struct uvisor_softc *, struct usb_device *, 201 struct usb_config *); 202 static void uvisor_free(struct ucom_softc *); 203 static void uvisor_cfg_open(struct ucom_softc *); 204 static void uvisor_cfg_close(struct ucom_softc *); 205 static void uvisor_start_read(struct ucom_softc *); 206 static void uvisor_stop_read(struct ucom_softc *); 207 static void uvisor_start_write(struct ucom_softc *); 208 static void uvisor_stop_write(struct ucom_softc *); 209 210 static const struct usb_config uvisor_config[UVISOR_N_TRANSFER] = { 211 212 [UVISOR_BULK_DT_WR] = { 213 .type = UE_BULK, 214 .endpoint = UE_ADDR_ANY, 215 .direction = UE_DIR_OUT, 216 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES, 217 .frames = UVISOROFRAMES, 218 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 219 .callback = &uvisor_write_callback, 220 }, 221 222 [UVISOR_BULK_DT_RD] = { 223 .type = UE_BULK, 224 .endpoint = UE_ADDR_ANY, 225 .direction = UE_DIR_IN, 226 .bufsize = UVISORIBUFSIZE, 227 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 228 .callback = &uvisor_read_callback, 229 }, 230 }; 231 232 static const struct ucom_callback uvisor_callback = { 233 .ucom_cfg_open = &uvisor_cfg_open, 234 .ucom_cfg_close = &uvisor_cfg_close, 235 .ucom_start_read = &uvisor_start_read, 236 .ucom_stop_read = &uvisor_stop_read, 237 .ucom_start_write = &uvisor_start_write, 238 .ucom_stop_write = &uvisor_stop_write, 239 .ucom_free = &uvisor_free, 240 }; 241 242 static device_method_t uvisor_methods[] = { 243 DEVMETHOD(device_probe, uvisor_probe), 244 DEVMETHOD(device_attach, uvisor_attach), 245 DEVMETHOD(device_detach, uvisor_detach), 246 DEVMETHOD_END 247 }; 248 249 static devclass_t uvisor_devclass; 250 251 static driver_t uvisor_driver = { 252 .name = "uvisor", 253 .methods = uvisor_methods, 254 .size = sizeof(struct uvisor_softc), 255 }; 256 257 static const STRUCT_USB_HOST_ID uvisor_devs[] = { 258 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) } 259 UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4), 260 UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4), 261 UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4), 262 UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4), 263 UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR), 264 UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4), 265 UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4), 266 UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4), 267 UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4), 268 UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4), 269 UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4), 270 UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4), 271 UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4), 272 UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4), 273 UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4), 274 UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4), 275 UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4), 276 UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4), 277 UVISOR_DEV(SONY, CLIE_40, 0), 278 UVISOR_DEV(SONY, CLIE_41, 0), 279 UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4), 280 UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4), 281 UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35), 282 /* UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */ 283 UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4), 284 /* UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */ 285 UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4), 286 #undef UVISOR_DEV 287 }; 288 289 DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0); 290 MODULE_DEPEND(uvisor, ucom, 1, 1, 1); 291 MODULE_DEPEND(uvisor, usb, 1, 1, 1); 292 MODULE_VERSION(uvisor, 1); 293 USB_PNP_HOST_INFO(uvisor_devs); 294 295 static int 296 uvisor_probe(device_t dev) 297 { 298 struct usb_attach_arg *uaa = device_get_ivars(dev); 299 300 if (uaa->usb_mode != USB_MODE_HOST) { 301 return (ENXIO); 302 } 303 if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) { 304 return (ENXIO); 305 } 306 if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) { 307 return (ENXIO); 308 } 309 return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa)); 310 } 311 312 static int 313 uvisor_attach(device_t dev) 314 { 315 struct usb_attach_arg *uaa = device_get_ivars(dev); 316 struct uvisor_softc *sc = device_get_softc(dev); 317 struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER]; 318 int error; 319 320 DPRINTF("sc=%p\n", sc); 321 memcpy(uvisor_config_copy, uvisor_config, 322 sizeof(uvisor_config_copy)); 323 324 device_set_usb_desc(dev); 325 326 mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF); 327 ucom_ref(&sc->sc_super_ucom); 328 329 sc->sc_udev = uaa->device; 330 331 /* configure the device */ 332 333 sc->sc_flag = USB_GET_DRIVER_INFO(uaa); 334 sc->sc_iface_no = uaa->info.bIfaceNum; 335 sc->sc_iface_index = UVISOR_IFACE_INDEX; 336 337 error = uvisor_init(sc, uaa->device, uvisor_config_copy); 338 339 if (error) { 340 DPRINTF("init failed, error=%s\n", 341 usbd_errstr(error)); 342 goto detach; 343 } 344 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index, 345 sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER, 346 sc, &sc->sc_mtx); 347 if (error) { 348 DPRINTF("could not allocate all pipes\n"); 349 goto detach; 350 } 351 352 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 353 &uvisor_callback, &sc->sc_mtx); 354 if (error) { 355 DPRINTF("ucom_attach failed\n"); 356 goto detach; 357 } 358 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 359 360 return (0); 361 362 detach: 363 uvisor_detach(dev); 364 return (ENXIO); 365 } 366 367 static int 368 uvisor_detach(device_t dev) 369 { 370 struct uvisor_softc *sc = device_get_softc(dev); 371 372 DPRINTF("sc=%p\n", sc); 373 374 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 375 usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER); 376 377 device_claim_softc(dev); 378 379 uvisor_free_softc(sc); 380 381 return (0); 382 } 383 384 UCOM_UNLOAD_DRAIN(uvisor); 385 386 static void 387 uvisor_free_softc(struct uvisor_softc *sc) 388 { 389 if (ucom_unref(&sc->sc_super_ucom)) { 390 mtx_destroy(&sc->sc_mtx); 391 device_free_softc(sc); 392 } 393 } 394 395 static void 396 uvisor_free(struct ucom_softc *ucom) 397 { 398 uvisor_free_softc(ucom->sc_parent); 399 } 400 401 static usb_error_t 402 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config) 403 { 404 usb_error_t err = 0; 405 struct usb_device_request req; 406 struct uvisor_connection_info coninfo; 407 struct uvisor_palm_connection_info pconinfo; 408 uint16_t actlen; 409 uint8_t buffer[256]; 410 411 if (sc->sc_flag & UVISOR_FLAG_VISOR) { 412 DPRINTF("getting connection info\n"); 413 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 414 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION; 415 USETW(req.wValue, 0); 416 USETW(req.wIndex, 0); 417 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE); 418 err = usbd_do_request_flags(udev, NULL, 419 &req, &coninfo, USB_SHORT_XFER_OK, 420 &actlen, USB_DEFAULT_TIMEOUT); 421 422 if (err) { 423 goto done; 424 } 425 } 426 #ifdef USB_DEBUG 427 if (sc->sc_flag & UVISOR_FLAG_VISOR) { 428 uint16_t i, np; 429 const char *desc; 430 431 np = UGETW(coninfo.num_ports); 432 if (np > UVISOR_MAX_CONN) { 433 np = UVISOR_MAX_CONN; 434 } 435 DPRINTF("Number of ports: %d\n", np); 436 437 for (i = 0; i < np; ++i) { 438 switch (coninfo.connections[i].port_function_id) { 439 case UVISOR_FUNCTION_GENERIC: 440 desc = "Generic"; 441 break; 442 case UVISOR_FUNCTION_DEBUGGER: 443 desc = "Debugger"; 444 break; 445 case UVISOR_FUNCTION_HOTSYNC: 446 desc = "HotSync"; 447 break; 448 case UVISOR_FUNCTION_REMOTE_FILE_SYS: 449 desc = "Remote File System"; 450 break; 451 default: 452 desc = "unknown"; 453 break; 454 } 455 DPRINTF("Port %d is for %s\n", 456 coninfo.connections[i].port, desc); 457 } 458 } 459 #endif 460 461 if (sc->sc_flag & UVISOR_FLAG_PALM4) { 462 uint8_t port; 463 464 /* Palm OS 4.0 Hack */ 465 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 466 req.bRequest = UVISOR_GET_PALM_INFORMATION; 467 USETW(req.wValue, 0); 468 USETW(req.wIndex, 0); 469 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN); 470 471 err = usbd_do_request_flags 472 (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK, 473 &actlen, USB_DEFAULT_TIMEOUT); 474 475 if (err) { 476 goto done; 477 } 478 if (actlen < 12) { 479 DPRINTF("too little data\n"); 480 err = USB_ERR_INVAL; 481 goto done; 482 } 483 if (pconinfo.endpoint_numbers_different) { 484 port = pconinfo.connections[0].end_point_info; 485 config[0].endpoint = (port & 0xF); /* output */ 486 config[1].endpoint = (port >> 4); /* input */ 487 } else { 488 port = pconinfo.connections[0].port; 489 config[0].endpoint = (port & 0xF); /* output */ 490 config[1].endpoint = (port & 0xF); /* input */ 491 } 492 #if 0 493 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 494 req.bRequest = UVISOR_GET_PALM_INFORMATION; 495 USETW(req.wValue, 0); 496 USETW(req.wIndex, 0); 497 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN); 498 err = usbd_do_request(udev, &req, buffer); 499 if (err) { 500 goto done; 501 } 502 #endif 503 } 504 if (sc->sc_flag & UVISOR_FLAG_PALM35) { 505 /* get the config number */ 506 DPRINTF("getting config info\n"); 507 req.bmRequestType = UT_READ; 508 req.bRequest = UR_GET_CONFIG; 509 USETW(req.wValue, 0); 510 USETW(req.wIndex, 0); 511 USETW(req.wLength, 1); 512 513 err = usbd_do_request(udev, NULL, &req, buffer); 514 if (err) { 515 goto done; 516 } 517 /* get the interface number */ 518 DPRINTF("get the interface number\n"); 519 req.bmRequestType = UT_READ_DEVICE; 520 req.bRequest = UR_GET_INTERFACE; 521 USETW(req.wValue, 0); 522 USETW(req.wIndex, 0); 523 USETW(req.wLength, 1); 524 err = usbd_do_request(udev, NULL, &req, buffer); 525 if (err) { 526 goto done; 527 } 528 } 529 #if 0 530 uWord wAvail; 531 532 DPRINTF("getting available bytes\n"); 533 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 534 req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE; 535 USETW(req.wValue, 0); 536 USETW(req.wIndex, 5); 537 USETW(req.wLength, sizeof(wAvail)); 538 err = usbd_do_request(udev, NULL, &req, &wAvail); 539 if (err) { 540 goto done; 541 } 542 DPRINTF("avail=%d\n", UGETW(wAvail)); 543 #endif 544 545 DPRINTF("done\n"); 546 done: 547 return (err); 548 } 549 550 static void 551 uvisor_cfg_open(struct ucom_softc *ucom) 552 { 553 return; 554 } 555 556 static void 557 uvisor_cfg_close(struct ucom_softc *ucom) 558 { 559 struct uvisor_softc *sc = ucom->sc_parent; 560 uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE]; 561 struct usb_device_request req; 562 usb_error_t err; 563 564 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */ 565 req.bRequest = UVISOR_CLOSE_NOTIFICATION; 566 USETW(req.wValue, 0); 567 USETW(req.wIndex, 0); 568 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE); 569 570 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 571 &req, buffer, 0, 1000); 572 if (err) { 573 DPRINTFN(0, "close notification failed, error=%s\n", 574 usbd_errstr(err)); 575 } 576 } 577 578 static void 579 uvisor_start_read(struct ucom_softc *ucom) 580 { 581 struct uvisor_softc *sc = ucom->sc_parent; 582 583 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]); 584 } 585 586 static void 587 uvisor_stop_read(struct ucom_softc *ucom) 588 { 589 struct uvisor_softc *sc = ucom->sc_parent; 590 591 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]); 592 } 593 594 static void 595 uvisor_start_write(struct ucom_softc *ucom) 596 { 597 struct uvisor_softc *sc = ucom->sc_parent; 598 599 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]); 600 } 601 602 static void 603 uvisor_stop_write(struct ucom_softc *ucom) 604 { 605 struct uvisor_softc *sc = ucom->sc_parent; 606 607 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]); 608 } 609 610 static void 611 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error) 612 { 613 struct uvisor_softc *sc = usbd_xfer_softc(xfer); 614 struct usb_page_cache *pc; 615 uint32_t actlen; 616 uint8_t x; 617 618 switch (USB_GET_STATE(xfer)) { 619 case USB_ST_SETUP: 620 case USB_ST_TRANSFERRED: 621 tr_setup: 622 for (x = 0; x != UVISOROFRAMES; x++) { 623 624 usbd_xfer_set_frame_offset(xfer, 625 x * UVISOROBUFSIZE, x); 626 627 pc = usbd_xfer_get_frame(xfer, x); 628 if (ucom_get_data(&sc->sc_ucom, pc, 0, 629 UVISOROBUFSIZE, &actlen)) { 630 usbd_xfer_set_frame_len(xfer, x, actlen); 631 } else { 632 break; 633 } 634 } 635 /* check for data */ 636 if (x != 0) { 637 usbd_xfer_set_frames(xfer, x); 638 usbd_transfer_submit(xfer); 639 } 640 break; 641 642 default: /* Error */ 643 if (error != USB_ERR_CANCELLED) { 644 /* try to clear stall first */ 645 usbd_xfer_set_stall(xfer); 646 goto tr_setup; 647 } 648 break; 649 } 650 } 651 652 static void 653 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error) 654 { 655 struct uvisor_softc *sc = usbd_xfer_softc(xfer); 656 struct usb_page_cache *pc; 657 int actlen; 658 659 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 660 661 switch (USB_GET_STATE(xfer)) { 662 case USB_ST_TRANSFERRED: 663 pc = usbd_xfer_get_frame(xfer, 0); 664 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 665 666 case USB_ST_SETUP: 667 tr_setup: 668 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 669 usbd_transfer_submit(xfer); 670 return; 671 672 default: /* Error */ 673 if (error != USB_ERR_CANCELLED) { 674 /* try to clear stall first */ 675 usbd_xfer_set_stall(xfer); 676 goto tr_setup; 677 } 678 return; 679 } 680 } 681