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