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 [UVISOR_BULK_DT_WR] = { 212 .type = UE_BULK, 213 .endpoint = UE_ADDR_ANY, 214 .direction = UE_DIR_OUT, 215 .bufsize = UVISOROBUFSIZE * UVISOROFRAMES, 216 .frames = UVISOROFRAMES, 217 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 218 .callback = &uvisor_write_callback, 219 }, 220 221 [UVISOR_BULK_DT_RD] = { 222 .type = UE_BULK, 223 .endpoint = UE_ADDR_ANY, 224 .direction = UE_DIR_IN, 225 .bufsize = UVISORIBUFSIZE, 226 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 227 .callback = &uvisor_read_callback, 228 }, 229 }; 230 231 static const struct ucom_callback uvisor_callback = { 232 .ucom_cfg_open = &uvisor_cfg_open, 233 .ucom_cfg_close = &uvisor_cfg_close, 234 .ucom_start_read = &uvisor_start_read, 235 .ucom_stop_read = &uvisor_stop_read, 236 .ucom_start_write = &uvisor_start_write, 237 .ucom_stop_write = &uvisor_stop_write, 238 .ucom_free = &uvisor_free, 239 }; 240 241 static device_method_t uvisor_methods[] = { 242 DEVMETHOD(device_probe, uvisor_probe), 243 DEVMETHOD(device_attach, uvisor_attach), 244 DEVMETHOD(device_detach, uvisor_detach), 245 DEVMETHOD_END 246 }; 247 248 static devclass_t uvisor_devclass; 249 250 static driver_t uvisor_driver = { 251 .name = "uvisor", 252 .methods = uvisor_methods, 253 .size = sizeof(struct uvisor_softc), 254 }; 255 256 static const STRUCT_USB_HOST_ID uvisor_devs[] = { 257 #define UVISOR_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) } 258 UVISOR_DEV(ACEECA, MEZ1000, UVISOR_FLAG_PALM4), 259 UVISOR_DEV(ALPHASMART, DANA_SYNC, UVISOR_FLAG_PALM4), 260 UVISOR_DEV(GARMIN, IQUE_3600, UVISOR_FLAG_PALM4), 261 UVISOR_DEV(FOSSIL, WRISTPDA, UVISOR_FLAG_PALM4), 262 UVISOR_DEV(HANDSPRING, VISOR, UVISOR_FLAG_VISOR), 263 UVISOR_DEV(HANDSPRING, TREO, UVISOR_FLAG_PALM4), 264 UVISOR_DEV(HANDSPRING, TREO600, UVISOR_FLAG_PALM4), 265 UVISOR_DEV(PALM, M500, UVISOR_FLAG_PALM4), 266 UVISOR_DEV(PALM, M505, UVISOR_FLAG_PALM4), 267 UVISOR_DEV(PALM, M515, UVISOR_FLAG_PALM4), 268 UVISOR_DEV(PALM, I705, UVISOR_FLAG_PALM4), 269 UVISOR_DEV(PALM, M125, UVISOR_FLAG_PALM4), 270 UVISOR_DEV(PALM, M130, UVISOR_FLAG_PALM4), 271 UVISOR_DEV(PALM, TUNGSTEN_Z, UVISOR_FLAG_PALM4), 272 UVISOR_DEV(PALM, TUNGSTEN_T, UVISOR_FLAG_PALM4), 273 UVISOR_DEV(PALM, ZIRE, UVISOR_FLAG_PALM4), 274 UVISOR_DEV(PALM, ZIRE31, UVISOR_FLAG_PALM4), 275 UVISOR_DEV(SAMSUNG, I500, UVISOR_FLAG_PALM4), 276 UVISOR_DEV(SONY, CLIE_40, 0), 277 UVISOR_DEV(SONY, CLIE_41, 0), 278 UVISOR_DEV(SONY, CLIE_S360, UVISOR_FLAG_PALM4), 279 UVISOR_DEV(SONY, CLIE_NX60, UVISOR_FLAG_PALM4), 280 UVISOR_DEV(SONY, CLIE_35, UVISOR_FLAG_PALM35), 281 /* UVISOR_DEV(SONY, CLIE_25, UVISOR_FLAG_PALM4 ), */ 282 UVISOR_DEV(SONY, CLIE_TJ37, UVISOR_FLAG_PALM4), 283 /* UVISOR_DEV(SONY, CLIE_TH55, UVISOR_FLAG_PALM4 ), See PR 80935 */ 284 UVISOR_DEV(TAPWAVE, ZODIAC, UVISOR_FLAG_PALM4), 285 #undef UVISOR_DEV 286 }; 287 288 DRIVER_MODULE(uvisor, uhub, uvisor_driver, uvisor_devclass, NULL, 0); 289 MODULE_DEPEND(uvisor, ucom, 1, 1, 1); 290 MODULE_DEPEND(uvisor, usb, 1, 1, 1); 291 MODULE_VERSION(uvisor, 1); 292 USB_PNP_HOST_INFO(uvisor_devs); 293 294 static int 295 uvisor_probe(device_t dev) 296 { 297 struct usb_attach_arg *uaa = device_get_ivars(dev); 298 299 if (uaa->usb_mode != USB_MODE_HOST) { 300 return (ENXIO); 301 } 302 if (uaa->info.bConfigIndex != UVISOR_CONFIG_INDEX) { 303 return (ENXIO); 304 } 305 if (uaa->info.bIfaceIndex != UVISOR_IFACE_INDEX) { 306 return (ENXIO); 307 } 308 return (usbd_lookup_id_by_uaa(uvisor_devs, sizeof(uvisor_devs), uaa)); 309 } 310 311 static int 312 uvisor_attach(device_t dev) 313 { 314 struct usb_attach_arg *uaa = device_get_ivars(dev); 315 struct uvisor_softc *sc = device_get_softc(dev); 316 struct usb_config uvisor_config_copy[UVISOR_N_TRANSFER]; 317 int error; 318 319 DPRINTF("sc=%p\n", sc); 320 memcpy(uvisor_config_copy, uvisor_config, 321 sizeof(uvisor_config_copy)); 322 323 device_set_usb_desc(dev); 324 325 mtx_init(&sc->sc_mtx, "uvisor", NULL, MTX_DEF); 326 ucom_ref(&sc->sc_super_ucom); 327 328 sc->sc_udev = uaa->device; 329 330 /* configure the device */ 331 332 sc->sc_flag = USB_GET_DRIVER_INFO(uaa); 333 sc->sc_iface_no = uaa->info.bIfaceNum; 334 sc->sc_iface_index = UVISOR_IFACE_INDEX; 335 336 error = uvisor_init(sc, uaa->device, uvisor_config_copy); 337 338 if (error) { 339 DPRINTF("init failed, error=%s\n", 340 usbd_errstr(error)); 341 goto detach; 342 } 343 error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index, 344 sc->sc_xfer, uvisor_config_copy, UVISOR_N_TRANSFER, 345 sc, &sc->sc_mtx); 346 if (error) { 347 DPRINTF("could not allocate all pipes\n"); 348 goto detach; 349 } 350 351 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 352 &uvisor_callback, &sc->sc_mtx); 353 if (error) { 354 DPRINTF("ucom_attach failed\n"); 355 goto detach; 356 } 357 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 358 359 return (0); 360 361 detach: 362 uvisor_detach(dev); 363 return (ENXIO); 364 } 365 366 static int 367 uvisor_detach(device_t dev) 368 { 369 struct uvisor_softc *sc = device_get_softc(dev); 370 371 DPRINTF("sc=%p\n", sc); 372 373 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 374 usbd_transfer_unsetup(sc->sc_xfer, UVISOR_N_TRANSFER); 375 376 device_claim_softc(dev); 377 378 uvisor_free_softc(sc); 379 380 return (0); 381 } 382 383 UCOM_UNLOAD_DRAIN(uvisor); 384 385 static void 386 uvisor_free_softc(struct uvisor_softc *sc) 387 { 388 if (ucom_unref(&sc->sc_super_ucom)) { 389 mtx_destroy(&sc->sc_mtx); 390 device_free_softc(sc); 391 } 392 } 393 394 static void 395 uvisor_free(struct ucom_softc *ucom) 396 { 397 uvisor_free_softc(ucom->sc_parent); 398 } 399 400 static usb_error_t 401 uvisor_init(struct uvisor_softc *sc, struct usb_device *udev, struct usb_config *config) 402 { 403 usb_error_t err = 0; 404 struct usb_device_request req; 405 struct uvisor_connection_info coninfo; 406 struct uvisor_palm_connection_info pconinfo; 407 uint16_t actlen; 408 uint8_t buffer[256]; 409 410 if (sc->sc_flag & UVISOR_FLAG_VISOR) { 411 DPRINTF("getting connection info\n"); 412 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 413 req.bRequest = UVISOR_GET_CONNECTION_INFORMATION; 414 USETW(req.wValue, 0); 415 USETW(req.wIndex, 0); 416 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE); 417 err = usbd_do_request_flags(udev, NULL, 418 &req, &coninfo, USB_SHORT_XFER_OK, 419 &actlen, USB_DEFAULT_TIMEOUT); 420 421 if (err) { 422 goto done; 423 } 424 } 425 #ifdef USB_DEBUG 426 if (sc->sc_flag & UVISOR_FLAG_VISOR) { 427 uint16_t i, np; 428 const char *desc; 429 430 np = UGETW(coninfo.num_ports); 431 if (np > UVISOR_MAX_CONN) { 432 np = UVISOR_MAX_CONN; 433 } 434 DPRINTF("Number of ports: %d\n", np); 435 436 for (i = 0; i < np; ++i) { 437 switch (coninfo.connections[i].port_function_id) { 438 case UVISOR_FUNCTION_GENERIC: 439 desc = "Generic"; 440 break; 441 case UVISOR_FUNCTION_DEBUGGER: 442 desc = "Debugger"; 443 break; 444 case UVISOR_FUNCTION_HOTSYNC: 445 desc = "HotSync"; 446 break; 447 case UVISOR_FUNCTION_REMOTE_FILE_SYS: 448 desc = "Remote File System"; 449 break; 450 default: 451 desc = "unknown"; 452 break; 453 } 454 DPRINTF("Port %d is for %s\n", 455 coninfo.connections[i].port, desc); 456 } 457 } 458 #endif 459 460 if (sc->sc_flag & UVISOR_FLAG_PALM4) { 461 uint8_t port; 462 463 /* Palm OS 4.0 Hack */ 464 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 465 req.bRequest = UVISOR_GET_PALM_INFORMATION; 466 USETW(req.wValue, 0); 467 USETW(req.wIndex, 0); 468 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN); 469 470 err = usbd_do_request_flags 471 (udev, NULL, &req, &pconinfo, USB_SHORT_XFER_OK, 472 &actlen, USB_DEFAULT_TIMEOUT); 473 474 if (err) { 475 goto done; 476 } 477 if (actlen < 12) { 478 DPRINTF("too little data\n"); 479 err = USB_ERR_INVAL; 480 goto done; 481 } 482 if (pconinfo.endpoint_numbers_different) { 483 port = pconinfo.connections[0].end_point_info; 484 config[0].endpoint = (port & 0xF); /* output */ 485 config[1].endpoint = (port >> 4); /* input */ 486 } else { 487 port = pconinfo.connections[0].port; 488 config[0].endpoint = (port & 0xF); /* output */ 489 config[1].endpoint = (port & 0xF); /* input */ 490 } 491 #if 0 492 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 493 req.bRequest = UVISOR_GET_PALM_INFORMATION; 494 USETW(req.wValue, 0); 495 USETW(req.wIndex, 0); 496 USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN); 497 err = usbd_do_request(udev, &req, buffer); 498 if (err) { 499 goto done; 500 } 501 #endif 502 } 503 if (sc->sc_flag & UVISOR_FLAG_PALM35) { 504 /* get the config number */ 505 DPRINTF("getting config info\n"); 506 req.bmRequestType = UT_READ; 507 req.bRequest = UR_GET_CONFIG; 508 USETW(req.wValue, 0); 509 USETW(req.wIndex, 0); 510 USETW(req.wLength, 1); 511 512 err = usbd_do_request(udev, NULL, &req, buffer); 513 if (err) { 514 goto done; 515 } 516 /* get the interface number */ 517 DPRINTF("get the interface number\n"); 518 req.bmRequestType = UT_READ_DEVICE; 519 req.bRequest = UR_GET_INTERFACE; 520 USETW(req.wValue, 0); 521 USETW(req.wIndex, 0); 522 USETW(req.wLength, 1); 523 err = usbd_do_request(udev, NULL, &req, buffer); 524 if (err) { 525 goto done; 526 } 527 } 528 #if 0 529 uWord wAvail; 530 531 DPRINTF("getting available bytes\n"); 532 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; 533 req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE; 534 USETW(req.wValue, 0); 535 USETW(req.wIndex, 5); 536 USETW(req.wLength, sizeof(wAvail)); 537 err = usbd_do_request(udev, NULL, &req, &wAvail); 538 if (err) { 539 goto done; 540 } 541 DPRINTF("avail=%d\n", UGETW(wAvail)); 542 #endif 543 544 DPRINTF("done\n"); 545 done: 546 return (err); 547 } 548 549 static void 550 uvisor_cfg_open(struct ucom_softc *ucom) 551 { 552 return; 553 } 554 555 static void 556 uvisor_cfg_close(struct ucom_softc *ucom) 557 { 558 struct uvisor_softc *sc = ucom->sc_parent; 559 uint8_t buffer[UVISOR_CONNECTION_INFO_SIZE]; 560 struct usb_device_request req; 561 usb_error_t err; 562 563 req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */ 564 req.bRequest = UVISOR_CLOSE_NOTIFICATION; 565 USETW(req.wValue, 0); 566 USETW(req.wIndex, 0); 567 USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE); 568 569 err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 570 &req, buffer, 0, 1000); 571 if (err) { 572 DPRINTFN(0, "close notification failed, error=%s\n", 573 usbd_errstr(err)); 574 } 575 } 576 577 static void 578 uvisor_start_read(struct ucom_softc *ucom) 579 { 580 struct uvisor_softc *sc = ucom->sc_parent; 581 582 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_RD]); 583 } 584 585 static void 586 uvisor_stop_read(struct ucom_softc *ucom) 587 { 588 struct uvisor_softc *sc = ucom->sc_parent; 589 590 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_RD]); 591 } 592 593 static void 594 uvisor_start_write(struct ucom_softc *ucom) 595 { 596 struct uvisor_softc *sc = ucom->sc_parent; 597 598 usbd_transfer_start(sc->sc_xfer[UVISOR_BULK_DT_WR]); 599 } 600 601 static void 602 uvisor_stop_write(struct ucom_softc *ucom) 603 { 604 struct uvisor_softc *sc = ucom->sc_parent; 605 606 usbd_transfer_stop(sc->sc_xfer[UVISOR_BULK_DT_WR]); 607 } 608 609 static void 610 uvisor_write_callback(struct usb_xfer *xfer, usb_error_t error) 611 { 612 struct uvisor_softc *sc = usbd_xfer_softc(xfer); 613 struct usb_page_cache *pc; 614 uint32_t actlen; 615 uint8_t x; 616 617 switch (USB_GET_STATE(xfer)) { 618 case USB_ST_SETUP: 619 case USB_ST_TRANSFERRED: 620 tr_setup: 621 for (x = 0; x != UVISOROFRAMES; x++) { 622 usbd_xfer_set_frame_offset(xfer, 623 x * UVISOROBUFSIZE, x); 624 625 pc = usbd_xfer_get_frame(xfer, x); 626 if (ucom_get_data(&sc->sc_ucom, pc, 0, 627 UVISOROBUFSIZE, &actlen)) { 628 usbd_xfer_set_frame_len(xfer, x, actlen); 629 } else { 630 break; 631 } 632 } 633 /* check for data */ 634 if (x != 0) { 635 usbd_xfer_set_frames(xfer, x); 636 usbd_transfer_submit(xfer); 637 } 638 break; 639 640 default: /* Error */ 641 if (error != USB_ERR_CANCELLED) { 642 /* try to clear stall first */ 643 usbd_xfer_set_stall(xfer); 644 goto tr_setup; 645 } 646 break; 647 } 648 } 649 650 static void 651 uvisor_read_callback(struct usb_xfer *xfer, usb_error_t error) 652 { 653 struct uvisor_softc *sc = usbd_xfer_softc(xfer); 654 struct usb_page_cache *pc; 655 int actlen; 656 657 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 658 659 switch (USB_GET_STATE(xfer)) { 660 case USB_ST_TRANSFERRED: 661 pc = usbd_xfer_get_frame(xfer, 0); 662 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 663 664 case USB_ST_SETUP: 665 tr_setup: 666 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 667 usbd_transfer_submit(xfer); 668 return; 669 670 default: /* Error */ 671 if (error != USB_ERR_CANCELLED) { 672 /* try to clear stall first */ 673 usbd_xfer_set_stall(xfer); 674 goto tr_setup; 675 } 676 return; 677 } 678 } 679