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