1 /* $FreeBSD: head/sys/dev/usb/usb_generic.c 277417 2015-01-20 11:43:16Z hselasky $ */ 2 /*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/stdint.h> 28 #include <sys/param.h> 29 #include <sys/queue.h> 30 #include <sys/types.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/bus.h> 34 #include <sys/module.h> 35 #include <sys/lock.h> 36 #include <sys/condvar.h> 37 #include <sys/sysctl.h> 38 #include <sys/unistd.h> 39 #include <sys/callout.h> 40 #include <sys/malloc.h> 41 #include <sys/priv.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 45 #include <bus/u4b/usb.h> 46 #include <bus/u4b/usb_ioctl.h> 47 #include <bus/u4b/usbdi.h> 48 #include <bus/u4b/usbdi_util.h> 49 50 #define USB_DEBUG_VAR ugen_debug 51 52 #include <bus/u4b/usb_core.h> 53 #include <bus/u4b/usb_dev.h> 54 #include <bus/u4b/usb_mbuf.h> 55 #include <bus/u4b/usb_process.h> 56 #include <bus/u4b/usb_device.h> 57 #include <bus/u4b/usb_debug.h> 58 #include <bus/u4b/usb_request.h> 59 #include <bus/u4b/usb_busdma.h> 60 #include <bus/u4b/usb_util.h> 61 #include <bus/u4b/usb_hub.h> 62 #include <bus/u4b/usb_generic.h> 63 #include <bus/u4b/usb_transfer.h> 64 65 #include <bus/u4b/usb_controller.h> 66 #include <bus/u4b/usb_bus.h> 67 68 #if USB_HAVE_UGEN 69 70 /* defines */ 71 72 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 73 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 74 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 75 76 /* function prototypes */ 77 78 static usb_callback_t ugen_read_clear_stall_callback; 79 static usb_callback_t ugen_write_clear_stall_callback; 80 static usb_callback_t ugen_ctrl_read_callback; 81 static usb_callback_t ugen_ctrl_write_callback; 82 static usb_callback_t ugen_isoc_read_callback; 83 static usb_callback_t ugen_isoc_write_callback; 84 static usb_callback_t ugen_ctrl_fs_callback; 85 86 static usb_fifo_open_t ugen_open; 87 static usb_fifo_close_t ugen_close; 88 static usb_fifo_ioctl_t ugen_ioctl; 89 static usb_fifo_ioctl_t ugen_ioctl_post; 90 static usb_fifo_cmd_t ugen_start_read; 91 static usb_fifo_cmd_t ugen_start_write; 92 static usb_fifo_cmd_t ugen_stop_io; 93 94 static int ugen_transfer_setup(struct usb_fifo *, 95 const struct usb_config *, uint8_t); 96 static int ugen_open_pipe_write(struct usb_fifo *); 97 static int ugen_open_pipe_read(struct usb_fifo *); 98 static int ugen_set_config(struct usb_fifo *, uint8_t); 99 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 100 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 101 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 102 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 103 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 104 struct usb_device_info *); 105 static int ugen_re_enumerate(struct usb_fifo *); 106 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 107 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 108 static int ugen_fs_uninit(struct usb_fifo *f); 109 110 /* structures */ 111 112 struct usb_fifo_methods usb_ugen_methods = { 113 .f_open = &ugen_open, 114 .f_close = &ugen_close, 115 .f_ioctl = &ugen_ioctl, 116 .f_ioctl_post = &ugen_ioctl_post, 117 .f_start_read = &ugen_start_read, 118 .f_stop_read = &ugen_stop_io, 119 .f_start_write = &ugen_start_write, 120 .f_stop_write = &ugen_stop_io, 121 }; 122 123 #ifdef USB_DEBUG 124 static int ugen_debug = 0; 125 126 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 127 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 128 0, "Debug level"); 129 130 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 131 #endif 132 133 134 /* prototypes */ 135 136 static int 137 ugen_transfer_setup(struct usb_fifo *f, 138 const struct usb_config *setup, uint8_t n_setup) 139 { 140 struct usb_endpoint *ep = usb_fifo_softc(f); 141 struct usb_device *udev = f->udev; 142 uint8_t iface_index = ep->iface_index; 143 int error; 144 145 lockmgr(f->priv_lock, LK_RELEASE); 146 147 /* 148 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 149 * exiting the mutex and checking things 150 */ 151 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 152 setup, n_setup, f, f->priv_lock); 153 if (error == 0) { 154 155 if (f->xfer[0]->nframes == 1) { 156 error = usb_fifo_alloc_buffer(f, 157 f->xfer[0]->max_data_length, 2); 158 } else { 159 error = usb_fifo_alloc_buffer(f, 160 f->xfer[0]->max_frame_size, 161 2 * f->xfer[0]->nframes); 162 } 163 if (error) { 164 usbd_transfer_unsetup(f->xfer, n_setup); 165 } 166 } 167 lockmgr(f->priv_lock, LK_EXCLUSIVE); 168 169 return (error); 170 } 171 172 static int 173 ugen_open(struct usb_fifo *f, int fflags) 174 { 175 struct usb_endpoint *ep = usb_fifo_softc(f); 176 struct usb_endpoint_descriptor *ed = ep->edesc; 177 uint8_t type; 178 179 DPRINTFN(6, "flag=0x%x\n", fflags); 180 181 lockmgr(f->priv_lock, LK_EXCLUSIVE); 182 switch (usbd_get_speed(f->udev)) { 183 case USB_SPEED_LOW: 184 case USB_SPEED_FULL: 185 f->nframes = UGEN_HW_FRAMES; 186 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 187 break; 188 default: 189 f->nframes = UGEN_HW_FRAMES * 8; 190 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 191 break; 192 } 193 194 type = ed->bmAttributes & UE_XFERTYPE; 195 if (type == UE_INTERRUPT) { 196 f->bufsize = 0; /* use "wMaxPacketSize" */ 197 } 198 f->timeout = USB_NO_TIMEOUT; 199 f->flag_short = 0; 200 f->fifo_zlp = 0; 201 lockmgr(f->priv_lock, LK_RELEASE); 202 203 return (0); 204 } 205 206 static void 207 ugen_close(struct usb_fifo *f, int fflags) 208 { 209 DPRINTFN(6, "flag=0x%x\n", fflags); 210 211 /* cleanup */ 212 213 lockmgr(f->priv_lock, LK_EXCLUSIVE); 214 usbd_transfer_stop(f->xfer[0]); 215 usbd_transfer_stop(f->xfer[1]); 216 lockmgr(f->priv_lock, LK_RELEASE); 217 218 usbd_transfer_unsetup(f->xfer, 2); 219 usb_fifo_free_buffer(f); 220 221 if (ugen_fs_uninit(f)) { 222 /* ignore any errors - we are closing */ 223 DPRINTFN(6, "no FIFOs\n"); 224 } 225 } 226 227 static int 228 ugen_open_pipe_write(struct usb_fifo *f) 229 { 230 struct usb_config usb_config[2]; 231 struct usb_endpoint *ep = usb_fifo_softc(f); 232 struct usb_endpoint_descriptor *ed = ep->edesc; 233 234 KKASSERT(lockowned(f->priv_lock)); 235 236 if (f->xfer[0] || f->xfer[1]) { 237 /* transfers are already opened */ 238 return (0); 239 } 240 memset(usb_config, 0, sizeof(usb_config)); 241 242 usb_config[1].type = UE_CONTROL; 243 usb_config[1].endpoint = 0; 244 usb_config[1].direction = UE_DIR_ANY; 245 usb_config[1].timeout = 1000; /* 1 second */ 246 usb_config[1].interval = 50;/* 50 milliseconds */ 247 usb_config[1].bufsize = sizeof(struct usb_device_request); 248 usb_config[1].callback = &ugen_write_clear_stall_callback; 249 usb_config[1].usb_mode = USB_MODE_HOST; 250 251 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 252 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 253 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 254 usb_config[0].direction = UE_DIR_TX; 255 usb_config[0].interval = USB_DEFAULT_INTERVAL; 256 usb_config[0].flags.proxy_buffer = 1; 257 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 258 259 switch (ed->bmAttributes & UE_XFERTYPE) { 260 case UE_INTERRUPT: 261 case UE_BULK: 262 if (f->flag_short) { 263 usb_config[0].flags.force_short_xfer = 1; 264 } 265 usb_config[0].callback = &ugen_ctrl_write_callback; 266 usb_config[0].timeout = f->timeout; 267 usb_config[0].frames = 1; 268 usb_config[0].bufsize = f->bufsize; 269 if (ugen_transfer_setup(f, usb_config, 2)) { 270 return (EIO); 271 } 272 /* first transfer does not clear stall */ 273 f->flag_stall = 0; 274 break; 275 276 case UE_ISOCHRONOUS: 277 usb_config[0].flags.short_xfer_ok = 1; 278 usb_config[0].bufsize = 0; /* use default */ 279 usb_config[0].frames = f->nframes; 280 usb_config[0].callback = &ugen_isoc_write_callback; 281 usb_config[0].timeout = 0; 282 283 /* clone configuration */ 284 usb_config[1] = usb_config[0]; 285 286 if (ugen_transfer_setup(f, usb_config, 2)) { 287 return (EIO); 288 } 289 break; 290 default: 291 return (EINVAL); 292 } 293 return (0); 294 } 295 296 static int 297 ugen_open_pipe_read(struct usb_fifo *f) 298 { 299 struct usb_config usb_config[2]; 300 struct usb_endpoint *ep = usb_fifo_softc(f); 301 struct usb_endpoint_descriptor *ed = ep->edesc; 302 303 KKASSERT(lockowned(f->priv_lock)); 304 305 if (f->xfer[0] || f->xfer[1]) { 306 /* transfers are already opened */ 307 return (0); 308 } 309 memset(usb_config, 0, sizeof(usb_config)); 310 311 usb_config[1].type = UE_CONTROL; 312 usb_config[1].endpoint = 0; 313 usb_config[1].direction = UE_DIR_ANY; 314 usb_config[1].timeout = 1000; /* 1 second */ 315 usb_config[1].interval = 50;/* 50 milliseconds */ 316 usb_config[1].bufsize = sizeof(struct usb_device_request); 317 usb_config[1].callback = &ugen_read_clear_stall_callback; 318 usb_config[1].usb_mode = USB_MODE_HOST; 319 320 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 321 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 322 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 323 usb_config[0].direction = UE_DIR_RX; 324 usb_config[0].interval = USB_DEFAULT_INTERVAL; 325 usb_config[0].flags.proxy_buffer = 1; 326 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 327 328 switch (ed->bmAttributes & UE_XFERTYPE) { 329 case UE_INTERRUPT: 330 case UE_BULK: 331 if (f->flag_short) { 332 usb_config[0].flags.short_xfer_ok = 1; 333 } 334 usb_config[0].timeout = f->timeout; 335 usb_config[0].frames = 1; 336 usb_config[0].callback = &ugen_ctrl_read_callback; 337 usb_config[0].bufsize = f->bufsize; 338 339 if (ugen_transfer_setup(f, usb_config, 2)) { 340 return (EIO); 341 } 342 /* first transfer does not clear stall */ 343 f->flag_stall = 0; 344 break; 345 346 case UE_ISOCHRONOUS: 347 usb_config[0].flags.short_xfer_ok = 1; 348 usb_config[0].bufsize = 0; /* use default */ 349 usb_config[0].frames = f->nframes; 350 usb_config[0].callback = &ugen_isoc_read_callback; 351 usb_config[0].timeout = 0; 352 353 /* clone configuration */ 354 usb_config[1] = usb_config[0]; 355 356 if (ugen_transfer_setup(f, usb_config, 2)) { 357 return (EIO); 358 } 359 break; 360 361 default: 362 return (EINVAL); 363 } 364 return (0); 365 } 366 367 static void 368 ugen_start_read(struct usb_fifo *f) 369 { 370 /* check that pipes are open */ 371 if (ugen_open_pipe_read(f)) { 372 /* signal error */ 373 usb_fifo_put_data_error(f); 374 } 375 /* start transfers */ 376 usbd_transfer_start(f->xfer[0]); 377 usbd_transfer_start(f->xfer[1]); 378 } 379 380 static void 381 ugen_start_write(struct usb_fifo *f) 382 { 383 /* check that pipes are open */ 384 if (ugen_open_pipe_write(f)) { 385 /* signal error */ 386 usb_fifo_get_data_error(f); 387 } 388 /* start transfers */ 389 usbd_transfer_start(f->xfer[0]); 390 usbd_transfer_start(f->xfer[1]); 391 } 392 393 static void 394 ugen_stop_io(struct usb_fifo *f) 395 { 396 /* stop transfers */ 397 usbd_transfer_stop(f->xfer[0]); 398 usbd_transfer_stop(f->xfer[1]); 399 } 400 401 static void 402 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 403 { 404 struct usb_fifo *f = usbd_xfer_softc(xfer); 405 struct usb_mbuf *m; 406 407 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 408 409 switch (USB_GET_STATE(xfer)) { 410 case USB_ST_TRANSFERRED: 411 if (xfer->actlen == 0) { 412 if (f->fifo_zlp != 4) { 413 f->fifo_zlp++; 414 } else { 415 /* 416 * Throttle a little bit we have multiple ZLPs 417 * in a row! 418 */ 419 xfer->interval = 64; /* ms */ 420 } 421 } else { 422 /* clear throttle */ 423 xfer->interval = 0; 424 f->fifo_zlp = 0; 425 } 426 usb_fifo_put_data(f, xfer->frbuffers, 0, 427 xfer->actlen, 1); 428 429 case USB_ST_SETUP: 430 if (f->flag_stall) { 431 usbd_transfer_start(f->xfer[1]); 432 break; 433 } 434 USB_IF_POLL(&f->free_q, m); 435 if (m) { 436 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 437 usbd_transfer_submit(xfer); 438 } 439 break; 440 441 default: /* Error */ 442 if (xfer->error != USB_ERR_CANCELLED) { 443 /* send a zero length packet to userland */ 444 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 445 f->flag_stall = 1; 446 f->fifo_zlp = 0; 447 usbd_transfer_start(f->xfer[1]); 448 } 449 break; 450 } 451 } 452 453 static void 454 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 455 { 456 struct usb_fifo *f = usbd_xfer_softc(xfer); 457 usb_frlength_t actlen; 458 459 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 460 461 switch (USB_GET_STATE(xfer)) { 462 case USB_ST_SETUP: 463 case USB_ST_TRANSFERRED: 464 /* 465 * If writing is in stall, just jump to clear stall 466 * callback and solve the situation. 467 */ 468 if (f->flag_stall) { 469 usbd_transfer_start(f->xfer[1]); 470 break; 471 } 472 /* 473 * Write data, setup and perform hardware transfer. 474 */ 475 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 476 xfer->max_data_length, &actlen, 0)) { 477 usbd_xfer_set_frame_len(xfer, 0, actlen); 478 usbd_transfer_submit(xfer); 479 } 480 break; 481 482 default: /* Error */ 483 if (xfer->error != USB_ERR_CANCELLED) { 484 f->flag_stall = 1; 485 usbd_transfer_start(f->xfer[1]); 486 } 487 break; 488 } 489 } 490 491 static void 492 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 493 { 494 struct usb_fifo *f = usbd_xfer_softc(xfer); 495 struct usb_xfer *xfer_other = f->xfer[0]; 496 497 if (f->flag_stall == 0) { 498 /* nothing to do */ 499 return; 500 } 501 if (usbd_clear_stall_callback(xfer, xfer_other)) { 502 DPRINTFN(5, "f=%p: stall cleared\n", f); 503 f->flag_stall = 0; 504 usbd_transfer_start(xfer_other); 505 } 506 } 507 508 static void 509 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 510 { 511 struct usb_fifo *f = usbd_xfer_softc(xfer); 512 struct usb_xfer *xfer_other = f->xfer[0]; 513 514 if (f->flag_stall == 0) { 515 /* nothing to do */ 516 return; 517 } 518 if (usbd_clear_stall_callback(xfer, xfer_other)) { 519 DPRINTFN(5, "f=%p: stall cleared\n", f); 520 f->flag_stall = 0; 521 usbd_transfer_start(xfer_other); 522 } 523 } 524 525 static void 526 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 527 { 528 struct usb_fifo *f = usbd_xfer_softc(xfer); 529 usb_frlength_t offset; 530 usb_frcount_t n; 531 532 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 533 534 switch (USB_GET_STATE(xfer)) { 535 case USB_ST_TRANSFERRED: 536 537 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 538 539 offset = 0; 540 541 for (n = 0; n != xfer->aframes; n++) { 542 usb_fifo_put_data(f, xfer->frbuffers, offset, 543 xfer->frlengths[n], 1); 544 offset += xfer->max_frame_size; 545 } 546 547 case USB_ST_SETUP: 548 tr_setup: 549 for (n = 0; n != xfer->nframes; n++) { 550 /* setup size for next transfer */ 551 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 552 } 553 usbd_transfer_submit(xfer); 554 break; 555 556 default: /* Error */ 557 if (xfer->error == USB_ERR_CANCELLED) { 558 break; 559 } 560 goto tr_setup; 561 } 562 } 563 564 static void 565 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 566 { 567 struct usb_fifo *f = usbd_xfer_softc(xfer); 568 usb_frlength_t actlen; 569 usb_frlength_t offset; 570 usb_frcount_t n; 571 572 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 573 574 switch (USB_GET_STATE(xfer)) { 575 case USB_ST_TRANSFERRED: 576 case USB_ST_SETUP: 577 tr_setup: 578 offset = 0; 579 for (n = 0; n != xfer->nframes; n++) { 580 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 581 xfer->max_frame_size, &actlen, 1)) { 582 usbd_xfer_set_frame_len(xfer, n, actlen); 583 offset += actlen; 584 } else { 585 break; 586 } 587 } 588 589 for (; n != xfer->nframes; n++) { 590 /* fill in zero frames */ 591 usbd_xfer_set_frame_len(xfer, n, 0); 592 } 593 usbd_transfer_submit(xfer); 594 break; 595 596 default: /* Error */ 597 if (xfer->error == USB_ERR_CANCELLED) { 598 break; 599 } 600 goto tr_setup; 601 } 602 } 603 604 static int 605 ugen_set_config(struct usb_fifo *f, uint8_t index) 606 { 607 DPRINTFN(2, "index %u\n", index); 608 609 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 610 /* not possible in device side mode */ 611 return (ENOTTY); 612 } 613 614 /* make sure all FIFO's are gone */ 615 /* else there can be a deadlock */ 616 if (ugen_fs_uninit(f)) { 617 /* ignore any errors */ 618 DPRINTFN(6, "no FIFOs\n"); 619 } 620 621 if (usbd_start_set_config(f->udev, index) != 0) 622 return (EIO); 623 624 return (0); 625 } 626 627 static int 628 ugen_set_interface(struct usb_fifo *f, 629 uint8_t iface_index, uint8_t alt_index) 630 { 631 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 632 633 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 634 /* not possible in device side mode */ 635 return (ENOTTY); 636 } 637 /* make sure all FIFO's are gone */ 638 /* else there can be a deadlock */ 639 if (ugen_fs_uninit(f)) { 640 /* ignore any errors */ 641 DPRINTFN(6, "no FIFOs\n"); 642 } 643 /* change setting - will free generic FIFOs, if any */ 644 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 645 return (EIO); 646 } 647 /* probe and attach */ 648 if (usb_probe_and_attach(f->udev, iface_index)) { 649 return (EIO); 650 } 651 return (0); 652 } 653 654 /*------------------------------------------------------------------------* 655 * ugen_get_cdesc 656 * 657 * This function will retrieve the complete configuration descriptor 658 * at the given index. 659 *------------------------------------------------------------------------*/ 660 static int 661 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 662 { 663 struct usb_config_descriptor *cdesc; 664 struct usb_device *udev = f->udev; 665 int error; 666 uint16_t len; 667 uint8_t free_data; 668 669 DPRINTFN(6, "\n"); 670 671 if (ugd->ugd_data == NULL) { 672 /* userland pointer should not be zero */ 673 return (EINVAL); 674 } 675 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 676 (ugd->ugd_config_index == udev->curr_config_index)) { 677 cdesc = usbd_get_config_descriptor(udev); 678 if (cdesc == NULL) { 679 return (ENXIO); 680 } 681 free_data = 0; 682 683 } else { 684 #if (USB_HAVE_FIXED_CONFIG == 0) 685 if (usbd_req_get_config_desc_full(udev, 686 NULL, &cdesc, ugd->ugd_config_index)) { 687 return (ENXIO); 688 } 689 free_data = 1; 690 #else 691 /* configuration descriptor data is shared */ 692 return (EINVAL); 693 #endif 694 } 695 696 len = UGETW(cdesc->wTotalLength); 697 if (len > ugd->ugd_maxlen) { 698 len = ugd->ugd_maxlen; 699 } 700 DPRINTFN(6, "len=%u\n", len); 701 702 ugd->ugd_actlen = len; 703 ugd->ugd_offset = 0; 704 705 error = copyout(cdesc, ugd->ugd_data, len); 706 707 if (free_data) 708 usbd_free_config_desc(udev, cdesc); 709 710 return (error); 711 } 712 713 /* 714 * This function is called having the enumeration SX locked which 715 * protects the scratch area used. 716 */ 717 static int 718 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 719 { 720 void *ptr; 721 uint16_t size; 722 int error; 723 724 ptr = f->udev->scratch.data; 725 size = sizeof(f->udev->scratch.data); 726 727 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 728 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 729 error = EINVAL; 730 } else { 731 732 if (size > ((uint8_t *)ptr)[0]) { 733 size = ((uint8_t *)ptr)[0]; 734 } 735 if (size > ugd->ugd_maxlen) { 736 size = ugd->ugd_maxlen; 737 } 738 ugd->ugd_actlen = size; 739 ugd->ugd_offset = 0; 740 741 error = copyout(ptr, ugd->ugd_data, size); 742 } 743 return (error); 744 } 745 746 /*------------------------------------------------------------------------* 747 * ugen_get_iface_driver 748 * 749 * This function generates an USB interface description for userland. 750 * 751 * Returns: 752 * 0: Success 753 * Else: Failure 754 *------------------------------------------------------------------------*/ 755 static int 756 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 757 { 758 struct usb_device *udev = f->udev; 759 struct usb_interface *iface; 760 const char *ptr; 761 const char *desc; 762 unsigned int len; 763 unsigned int maxlen; 764 char buf[128]; 765 int error; 766 767 DPRINTFN(6, "\n"); 768 769 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 770 /* userland pointer should not be zero */ 771 return (EINVAL); 772 } 773 774 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 775 if ((iface == NULL) || (iface->idesc == NULL)) { 776 /* invalid interface index */ 777 return (EINVAL); 778 } 779 780 /* read out device nameunit string, if any */ 781 if ((iface->subdev != NULL) && 782 device_is_attached(iface->subdev) && 783 (ptr = device_get_nameunit(iface->subdev)) && 784 (desc = device_get_desc(iface->subdev))) { 785 786 /* print description */ 787 ksnprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 788 789 /* range checks */ 790 maxlen = ugd->ugd_maxlen - 1; 791 len = strlen(buf); 792 if (len > maxlen) 793 len = maxlen; 794 795 /* update actual length, including terminating zero */ 796 ugd->ugd_actlen = len + 1; 797 798 /* copy out interface description */ 799 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 800 } else { 801 /* zero length string is default */ 802 error = copyout("", ugd->ugd_data, 1); 803 } 804 return (error); 805 } 806 807 /*------------------------------------------------------------------------* 808 * usb_gen_fill_deviceinfo 809 * 810 * This function dumps information about an USB device to the 811 * structure pointed to by the "di" argument. 812 * 813 * Returns: 814 * 0: Success 815 * Else: Failure 816 *------------------------------------------------------------------------*/ 817 static int 818 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 819 { 820 struct usb_device *udev; 821 struct usb_device *hub; 822 823 udev = f->udev; 824 825 bzero(di, sizeof(di[0])); 826 827 di->udi_bus = device_get_unit(udev->bus->bdev); 828 di->udi_addr = udev->address; 829 di->udi_index = udev->device_index; 830 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 831 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 832 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 833 usb_printbcd(di->udi_release, sizeof(di->udi_release), 834 UGETW(udev->ddesc.bcdDevice)); 835 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 836 di->udi_productNo = UGETW(udev->ddesc.idProduct); 837 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 838 di->udi_class = udev->ddesc.bDeviceClass; 839 di->udi_subclass = udev->ddesc.bDeviceSubClass; 840 di->udi_protocol = udev->ddesc.bDeviceProtocol; 841 di->udi_config_no = udev->curr_config_no; 842 di->udi_config_index = udev->curr_config_index; 843 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 844 di->udi_speed = udev->speed; 845 di->udi_mode = udev->flags.usb_mode; 846 di->udi_power_mode = udev->power_mode; 847 di->udi_suspended = udev->flags.peer_suspended; 848 849 hub = udev->parent_hub; 850 if (hub) { 851 di->udi_hubaddr = hub->address; 852 di->udi_hubindex = hub->device_index; 853 di->udi_hubport = udev->port_no; 854 } 855 return (0); 856 } 857 858 /*------------------------------------------------------------------------* 859 * ugen_check_request 860 * 861 * Return values: 862 * 0: Access allowed 863 * Else: No access 864 *------------------------------------------------------------------------*/ 865 static int 866 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 867 { 868 struct usb_endpoint *ep; 869 int error; 870 871 /* 872 * Avoid requests that would damage the bus integrity: 873 */ 874 if (((req->bmRequestType == UT_WRITE_DEVICE) && 875 (req->bRequest == UR_SET_ADDRESS)) || 876 ((req->bmRequestType == UT_WRITE_DEVICE) && 877 (req->bRequest == UR_SET_CONFIG)) || 878 ((req->bmRequestType == UT_WRITE_INTERFACE) && 879 (req->bRequest == UR_SET_INTERFACE))) { 880 /* 881 * These requests can be useful for testing USB drivers. 882 */ 883 error = priv_check(curthread, PRIV_DRIVER); 884 if (error) { 885 return (error); 886 } 887 } 888 /* 889 * Special case - handle clearing of stall 890 */ 891 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 892 893 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 894 if (ep == NULL) { 895 return (EINVAL); 896 } 897 if ((req->bRequest == UR_CLEAR_FEATURE) && 898 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 899 usbd_clear_data_toggle(udev, ep); 900 } 901 } 902 /* TODO: add more checks to verify the interface index */ 903 904 return (0); 905 } 906 907 int 908 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 909 { 910 int error; 911 uint16_t len; 912 uint16_t actlen; 913 914 if (ugen_check_request(f->udev, &ur->ucr_request)) { 915 return (EPERM); 916 } 917 len = UGETW(ur->ucr_request.wLength); 918 919 /* check if "ucr_data" is valid */ 920 if (len != 0) { 921 if (ur->ucr_data == NULL) { 922 return (EFAULT); 923 } 924 } 925 /* do the USB request */ 926 error = usbd_do_request_flags 927 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 928 (ur->ucr_flags & USB_SHORT_XFER_OK) | 929 USB_USER_DATA_PTR, &actlen, 930 USB_DEFAULT_TIMEOUT); 931 932 ur->ucr_actlen = actlen; 933 934 if (error) { 935 error = EIO; 936 } 937 return (error); 938 } 939 940 /*------------------------------------------------------------------------ 941 * ugen_re_enumerate 942 *------------------------------------------------------------------------*/ 943 static int 944 ugen_re_enumerate(struct usb_fifo *f) 945 { 946 struct usb_device *udev = f->udev; 947 int error; 948 949 /* 950 * This request can be useful for testing USB drivers: 951 */ 952 error = priv_check(curthread, PRIV_DRIVER); 953 if (error) { 954 return (error); 955 } 956 if (udev->flags.usb_mode != USB_MODE_HOST) { 957 /* not possible in device side mode */ 958 DPRINTFN(6, "device mode\n"); 959 return (ENOTTY); 960 } 961 /* make sure all FIFO's are gone */ 962 /* else there can be a deadlock */ 963 if (ugen_fs_uninit(f)) { 964 /* ignore any errors */ 965 DPRINTFN(6, "no FIFOs\n"); 966 } 967 /* start re-enumeration of device */ 968 usbd_start_re_enumerate(udev); 969 return (0); 970 } 971 972 int 973 ugen_fs_uninit(struct usb_fifo *f) 974 { 975 if (f->fs_xfer == NULL) { 976 return (EINVAL); 977 } 978 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 979 kfree(f->fs_xfer, M_USB); 980 f->fs_xfer = NULL; 981 f->fs_ep_max = 0; 982 f->fs_ep_ptr = NULL; 983 f->flag_iscomplete = 0; 984 usb_fifo_free_buffer(f); 985 return (0); 986 } 987 988 static uint8_t 989 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 990 { 991 struct usb_mbuf *m; 992 993 USB_IF_DEQUEUE(&f->used_q, m); 994 995 if (m) { 996 *pindex = *((uint8_t *)(m->cur_data_ptr)); 997 998 USB_IF_ENQUEUE(&f->free_q, m); 999 1000 return (0); /* success */ 1001 } else { 1002 1003 *pindex = 0; /* fix compiler warning */ 1004 1005 f->flag_iscomplete = 0; 1006 } 1007 return (1); /* failure */ 1008 } 1009 1010 static void 1011 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1012 { 1013 struct usb_mbuf *m; 1014 1015 USB_IF_DEQUEUE(&f->free_q, m); 1016 1017 if (m == NULL) { 1018 /* can happen during close */ 1019 DPRINTF("out of buffers\n"); 1020 return; 1021 } 1022 USB_MBUF_RESET(m); 1023 1024 *((uint8_t *)(m->cur_data_ptr)) = index; 1025 1026 USB_IF_ENQUEUE(&f->used_q, m); 1027 1028 f->flag_iscomplete = 1; 1029 1030 usb_fifo_wakeup(f); 1031 } 1032 1033 static int 1034 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1035 { 1036 struct usb_device_request *req; 1037 struct usb_xfer *xfer; 1038 struct usb_fs_endpoint fs_ep; 1039 void *uaddr; /* userland pointer */ 1040 void *kaddr; 1041 usb_frlength_t offset; 1042 usb_frlength_t rem; 1043 usb_frcount_t n; 1044 uint32_t length; 1045 int error; 1046 uint8_t isread; 1047 1048 if (ep_index >= f->fs_ep_max) { 1049 return (EINVAL); 1050 } 1051 xfer = f->fs_xfer[ep_index]; 1052 if (xfer == NULL) { 1053 return (EINVAL); 1054 } 1055 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1056 if (usbd_transfer_pending(xfer)) { 1057 lockmgr(f->priv_lock, LK_RELEASE); 1058 return (EBUSY); /* should not happen */ 1059 } 1060 lockmgr(f->priv_lock, LK_RELEASE); 1061 1062 error = copyin(f->fs_ep_ptr + 1063 ep_index, &fs_ep, sizeof(fs_ep)); 1064 if (error) { 1065 return (error); 1066 } 1067 /* security checks */ 1068 1069 if (fs_ep.nFrames > xfer->max_frame_count) { 1070 xfer->error = USB_ERR_INVAL; 1071 goto complete; 1072 } 1073 if (fs_ep.nFrames == 0) { 1074 xfer->error = USB_ERR_INVAL; 1075 goto complete; 1076 } 1077 error = copyin(fs_ep.ppBuffer, 1078 &uaddr, sizeof(uaddr)); 1079 if (error) { 1080 return (error); 1081 } 1082 /* reset first frame */ 1083 usbd_xfer_set_frame_offset(xfer, 0, 0); 1084 1085 if (xfer->flags_int.control_xfr) { 1086 1087 req = xfer->frbuffers[0].buffer; 1088 1089 error = copyin(fs_ep.pLength, 1090 &length, sizeof(length)); 1091 if (error) { 1092 return (error); 1093 } 1094 if (length != sizeof(*req)) { 1095 xfer->error = USB_ERR_INVAL; 1096 goto complete; 1097 } 1098 if (length != 0) { 1099 error = copyin(uaddr, req, length); 1100 if (error) { 1101 return (error); 1102 } 1103 } 1104 if (ugen_check_request(f->udev, req)) { 1105 xfer->error = USB_ERR_INVAL; 1106 goto complete; 1107 } 1108 usbd_xfer_set_frame_len(xfer, 0, length); 1109 1110 /* Host mode only ! */ 1111 if ((req->bmRequestType & 1112 (UT_READ | UT_WRITE)) == UT_READ) { 1113 isread = 1; 1114 } else { 1115 isread = 0; 1116 } 1117 n = 1; 1118 offset = sizeof(*req); 1119 1120 } else { 1121 /* Device and Host mode */ 1122 if (USB_GET_DATA_ISREAD(xfer)) { 1123 isread = 1; 1124 } else { 1125 isread = 0; 1126 } 1127 n = 0; 1128 offset = 0; 1129 } 1130 1131 rem = usbd_xfer_max_len(xfer); 1132 xfer->nframes = fs_ep.nFrames; 1133 xfer->timeout = fs_ep.timeout; 1134 if (xfer->timeout > 65535) { 1135 xfer->timeout = 65535; 1136 } 1137 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1138 xfer->flags.short_xfer_ok = 1; 1139 else 1140 xfer->flags.short_xfer_ok = 0; 1141 1142 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1143 xfer->flags.short_frames_ok = 1; 1144 else 1145 xfer->flags.short_frames_ok = 0; 1146 1147 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1148 xfer->flags.force_short_xfer = 1; 1149 else 1150 xfer->flags.force_short_xfer = 0; 1151 1152 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1153 usbd_xfer_set_stall(xfer); 1154 else 1155 xfer->flags.stall_pipe = 0; 1156 1157 for (; n != xfer->nframes; n++) { 1158 1159 error = copyin(fs_ep.pLength + n, 1160 &length, sizeof(length)); 1161 if (error) { 1162 break; 1163 } 1164 usbd_xfer_set_frame_len(xfer, n, length); 1165 1166 if (length > rem) { 1167 xfer->error = USB_ERR_INVAL; 1168 goto complete; 1169 } 1170 rem -= length; 1171 1172 if (!isread) { 1173 1174 /* we need to know the source buffer */ 1175 error = copyin(fs_ep.ppBuffer + n, 1176 &uaddr, sizeof(uaddr)); 1177 if (error) { 1178 break; 1179 } 1180 if (xfer->flags_int.isochronous_xfr) { 1181 /* get kernel buffer address */ 1182 kaddr = xfer->frbuffers[0].buffer; 1183 kaddr = USB_ADD_BYTES(kaddr, offset); 1184 } else { 1185 /* set current frame offset */ 1186 usbd_xfer_set_frame_offset(xfer, offset, n); 1187 1188 /* get kernel buffer address */ 1189 kaddr = xfer->frbuffers[n].buffer; 1190 } 1191 1192 /* move data */ 1193 error = copyin(uaddr, kaddr, length); 1194 if (error) { 1195 break; 1196 } 1197 } 1198 offset += length; 1199 } 1200 return (error); 1201 1202 complete: 1203 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1204 ugen_fs_set_complete(f, ep_index); 1205 lockmgr(f->priv_lock, LK_RELEASE); 1206 return (0); 1207 } 1208 1209 static int 1210 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1211 { 1212 struct usb_device_request *req; 1213 struct usb_xfer *xfer; 1214 struct usb_fs_endpoint fs_ep; 1215 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1216 void *uaddr; /* userland ptr */ 1217 void *kaddr; 1218 usb_frlength_t offset; 1219 usb_frlength_t rem; 1220 usb_frcount_t n; 1221 uint32_t length; 1222 uint32_t temp; 1223 int error; 1224 uint8_t isread; 1225 1226 if (ep_index >= f->fs_ep_max) 1227 return (EINVAL); 1228 1229 xfer = f->fs_xfer[ep_index]; 1230 if (xfer == NULL) 1231 return (EINVAL); 1232 1233 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1234 if (usbd_transfer_pending(xfer)) { 1235 lockmgr(f->priv_lock, LK_RELEASE); 1236 return (EBUSY); /* should not happen */ 1237 } 1238 lockmgr(f->priv_lock, LK_RELEASE); 1239 1240 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1241 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1242 if (error) { 1243 return (error); 1244 } 1245 fs_ep.status = xfer->error; 1246 fs_ep.aFrames = xfer->aframes; 1247 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1248 if (xfer->error) { 1249 goto complete; 1250 } 1251 if (xfer->flags_int.control_xfr) { 1252 req = xfer->frbuffers[0].buffer; 1253 1254 /* Host mode only ! */ 1255 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1256 isread = 1; 1257 } else { 1258 isread = 0; 1259 } 1260 if (xfer->nframes == 0) 1261 n = 0; /* should never happen */ 1262 else 1263 n = 1; 1264 } else { 1265 /* Device and Host mode */ 1266 if (USB_GET_DATA_ISREAD(xfer)) { 1267 isread = 1; 1268 } else { 1269 isread = 0; 1270 } 1271 n = 0; 1272 } 1273 1274 /* Update lengths and copy out data */ 1275 1276 rem = usbd_xfer_max_len(xfer); 1277 offset = 0; 1278 1279 for (; n != xfer->nframes; n++) { 1280 1281 /* get initial length into "temp" */ 1282 error = copyin(fs_ep.pLength + n, 1283 &temp, sizeof(temp)); 1284 if (error) { 1285 return (error); 1286 } 1287 if (temp > rem) { 1288 /* the userland length has been corrupted */ 1289 DPRINTF("corrupt userland length " 1290 "%u > %u\n", temp, rem); 1291 fs_ep.status = USB_ERR_INVAL; 1292 goto complete; 1293 } 1294 rem -= temp; 1295 1296 /* get actual transfer length */ 1297 length = xfer->frlengths[n]; 1298 if (length > temp) { 1299 /* data overflow */ 1300 fs_ep.status = USB_ERR_INVAL; 1301 DPRINTF("data overflow %u > %u\n", 1302 length, temp); 1303 goto complete; 1304 } 1305 if (isread) { 1306 1307 /* we need to know the destination buffer */ 1308 error = copyin(fs_ep.ppBuffer + n, 1309 &uaddr, sizeof(uaddr)); 1310 if (error) { 1311 return (error); 1312 } 1313 if (xfer->flags_int.isochronous_xfr) { 1314 /* only one frame buffer */ 1315 kaddr = USB_ADD_BYTES( 1316 xfer->frbuffers[0].buffer, offset); 1317 } else { 1318 /* multiple frame buffers */ 1319 kaddr = xfer->frbuffers[n].buffer; 1320 } 1321 1322 /* move data */ 1323 error = copyout(kaddr, uaddr, length); 1324 if (error) { 1325 return (error); 1326 } 1327 } 1328 /* 1329 * Update offset according to initial length, which is 1330 * needed by isochronous transfers! 1331 */ 1332 offset += temp; 1333 1334 /* update length */ 1335 error = copyout(&length, 1336 fs_ep.pLength + n, sizeof(length)); 1337 if (error) { 1338 return (error); 1339 } 1340 } 1341 1342 complete: 1343 /* update "aFrames" */ 1344 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1345 sizeof(fs_ep.aFrames)); 1346 if (error) 1347 goto done; 1348 1349 /* update "isoc_time_complete" */ 1350 error = copyout(&fs_ep.isoc_time_complete, 1351 &fs_ep_uptr->isoc_time_complete, 1352 sizeof(fs_ep.isoc_time_complete)); 1353 if (error) 1354 goto done; 1355 /* update "status" */ 1356 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1357 sizeof(fs_ep.status)); 1358 done: 1359 return (error); 1360 } 1361 1362 static uint8_t 1363 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1364 { 1365 struct usb_fifo *f_rx; 1366 struct usb_fifo *f_tx; 1367 1368 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1369 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1370 1371 if ((fflags & FREAD) && f_rx && 1372 (f_rx->xfer[0] || f_rx->xfer[1])) { 1373 return (1); /* RX FIFO in use */ 1374 } 1375 if ((fflags & FWRITE) && f_tx && 1376 (f_tx->xfer[0] || f_tx->xfer[1])) { 1377 return (1); /* TX FIFO in use */ 1378 } 1379 return (0); /* not in use */ 1380 } 1381 1382 static int 1383 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1384 { 1385 struct usb_config usb_config[1]; 1386 struct usb_device_request req; 1387 union { 1388 struct usb_fs_complete *pcomp; 1389 struct usb_fs_start *pstart; 1390 struct usb_fs_stop *pstop; 1391 struct usb_fs_open *popen; 1392 struct usb_fs_open_stream *popen_stream; 1393 struct usb_fs_close *pclose; 1394 struct usb_fs_clear_stall_sync *pstall; 1395 void *addr; 1396 } u; 1397 struct usb_endpoint *ep; 1398 struct usb_endpoint_descriptor *ed; 1399 struct usb_xfer *xfer; 1400 int error = 0; 1401 uint8_t iface_index; 1402 uint8_t isread; 1403 uint8_t ep_index; 1404 uint8_t pre_scale; 1405 1406 u.addr = addr; 1407 1408 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1409 1410 switch (cmd) { 1411 case USB_FS_COMPLETE: 1412 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1413 error = ugen_fs_get_complete(f, &ep_index); 1414 lockmgr(f->priv_lock, LK_RELEASE); 1415 1416 if (error) { 1417 error = EBUSY; 1418 break; 1419 } 1420 u.pcomp->ep_index = ep_index; 1421 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1422 break; 1423 1424 case USB_FS_START: 1425 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1426 if (error) 1427 break; 1428 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1429 xfer = f->fs_xfer[u.pstart->ep_index]; 1430 usbd_transfer_start(xfer); 1431 lockmgr(f->priv_lock, LK_RELEASE); 1432 break; 1433 1434 case USB_FS_STOP: 1435 if (u.pstop->ep_index >= f->fs_ep_max) { 1436 error = EINVAL; 1437 break; 1438 } 1439 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1440 xfer = f->fs_xfer[u.pstart->ep_index]; 1441 if (usbd_transfer_pending(xfer)) { 1442 usbd_transfer_stop(xfer); 1443 /* 1444 * Check if the USB transfer was stopped 1445 * before it was even started. Else a cancel 1446 * callback will be pending. 1447 */ 1448 if (!xfer->flags_int.transferring) { 1449 ugen_fs_set_complete(xfer->priv_sc, 1450 USB_P2U(xfer->priv_fifo)); 1451 } 1452 } 1453 lockmgr(f->priv_lock, LK_RELEASE); 1454 break; 1455 1456 case USB_FS_OPEN: 1457 case USB_FS_OPEN_STREAM: 1458 if (u.popen->ep_index >= f->fs_ep_max) { 1459 error = EINVAL; 1460 break; 1461 } 1462 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1463 error = EBUSY; 1464 break; 1465 } 1466 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1467 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1468 } 1469 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1470 pre_scale = 1; 1471 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1472 } else { 1473 pre_scale = 0; 1474 } 1475 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1476 u.popen->max_frames = USB_FS_MAX_FRAMES; 1477 break; 1478 } 1479 if (u.popen->max_frames == 0) { 1480 error = EINVAL; 1481 break; 1482 } 1483 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1484 if (ep == NULL) { 1485 error = EINVAL; 1486 break; 1487 } 1488 ed = ep->edesc; 1489 if (ed == NULL) { 1490 error = ENXIO; 1491 break; 1492 } 1493 iface_index = ep->iface_index; 1494 1495 memset(usb_config, 0, sizeof(usb_config)); 1496 1497 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1498 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1499 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1500 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1501 usb_config[0].flags.proxy_buffer = 1; 1502 if (pre_scale != 0) 1503 usb_config[0].flags.pre_scale_frames = 1; 1504 usb_config[0].callback = &ugen_ctrl_fs_callback; 1505 usb_config[0].timeout = 0; /* no timeout */ 1506 usb_config[0].frames = u.popen->max_frames; 1507 usb_config[0].bufsize = u.popen->max_bufsize; 1508 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1509 if (cmd == USB_FS_OPEN_STREAM) 1510 usb_config[0].stream_id = u.popen_stream->stream_id; 1511 1512 if (usb_config[0].type == UE_CONTROL) { 1513 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1514 error = EINVAL; 1515 break; 1516 } 1517 } else { 1518 1519 isread = ((usb_config[0].endpoint & 1520 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1521 1522 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1523 isread = !isread; 1524 } 1525 /* check permissions */ 1526 if (isread) { 1527 if (!(fflags & FREAD)) { 1528 error = EPERM; 1529 break; 1530 } 1531 } else { 1532 if (!(fflags & FWRITE)) { 1533 error = EPERM; 1534 break; 1535 } 1536 } 1537 } 1538 error = usbd_transfer_setup(f->udev, &iface_index, 1539 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1540 f, f->priv_lock); 1541 if (error == 0) { 1542 /* update maximums */ 1543 u.popen->max_packet_length = 1544 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1545 u.popen->max_bufsize = 1546 f->fs_xfer[u.popen->ep_index]->max_data_length; 1547 /* update number of frames */ 1548 u.popen->max_frames = 1549 f->fs_xfer[u.popen->ep_index]->nframes; 1550 /* store index of endpoint */ 1551 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1552 ((uint8_t *)0) + u.popen->ep_index; 1553 } else { 1554 error = ENOMEM; 1555 } 1556 break; 1557 1558 case USB_FS_CLOSE: 1559 if (u.pclose->ep_index >= f->fs_ep_max) { 1560 error = EINVAL; 1561 break; 1562 } 1563 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1564 error = EINVAL; 1565 break; 1566 } 1567 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1568 break; 1569 1570 case USB_FS_CLEAR_STALL_SYNC: 1571 if (u.pstall->ep_index >= f->fs_ep_max) { 1572 error = EINVAL; 1573 break; 1574 } 1575 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1576 error = EINVAL; 1577 break; 1578 } 1579 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1580 error = EINVAL; 1581 break; 1582 } 1583 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1584 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1585 lockmgr(f->priv_lock, LK_RELEASE); 1586 1587 if (error) { 1588 return (EBUSY); 1589 } 1590 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1591 1592 /* setup a clear-stall packet */ 1593 req.bmRequestType = UT_WRITE_ENDPOINT; 1594 req.bRequest = UR_CLEAR_FEATURE; 1595 USETW(req.wValue, UF_ENDPOINT_HALT); 1596 req.wIndex[0] = ep->edesc->bEndpointAddress; 1597 req.wIndex[1] = 0; 1598 USETW(req.wLength, 0); 1599 1600 error = usbd_do_request(f->udev, NULL, &req, NULL); 1601 if (error == 0) { 1602 usbd_clear_data_toggle(f->udev, ep); 1603 } else { 1604 error = ENXIO; 1605 } 1606 break; 1607 1608 default: 1609 error = ENOIOCTL; 1610 break; 1611 } 1612 1613 DPRINTFN(6, "error=%d\n", error); 1614 1615 return (error); 1616 } 1617 1618 static int 1619 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1620 { 1621 uint8_t t; 1622 1623 if (*(int *)addr) 1624 t = 1; 1625 else 1626 t = 0; 1627 1628 if (f->flag_short == t) { 1629 /* same value like before - accept */ 1630 return (0); 1631 } 1632 if (f->xfer[0] || f->xfer[1]) { 1633 /* cannot change this during transfer */ 1634 return (EBUSY); 1635 } 1636 f->flag_short = t; 1637 return (0); 1638 } 1639 1640 static int 1641 ugen_set_timeout(struct usb_fifo *f, void *addr) 1642 { 1643 f->timeout = *(int *)addr; 1644 if (f->timeout > 65535) { 1645 /* limit user input */ 1646 f->timeout = 65535; 1647 } 1648 return (0); 1649 } 1650 1651 static int 1652 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1653 { 1654 if (f->xfer[0]) { 1655 *(int *)addr = f->xfer[0]->max_frame_size; 1656 } else { 1657 return (EINVAL); 1658 } 1659 return (0); 1660 } 1661 1662 static int 1663 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1664 { 1665 usb_frlength_t t; 1666 1667 if (*(int *)addr < 0) 1668 t = 0; /* use "wMaxPacketSize" */ 1669 else if (*(int *)addr < (256 * 1024)) 1670 t = *(int *)addr; 1671 else 1672 t = 256 * 1024; 1673 1674 if (f->bufsize == t) { 1675 /* same value like before - accept */ 1676 return (0); 1677 } 1678 if (f->xfer[0] || f->xfer[1]) { 1679 /* cannot change this during transfer */ 1680 return (EBUSY); 1681 } 1682 f->bufsize = t; 1683 return (0); 1684 } 1685 1686 static int 1687 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1688 { 1689 *(int *)addr = f->bufsize; 1690 return (0); 1691 } 1692 1693 static int 1694 ugen_get_iface_desc(struct usb_fifo *f, 1695 struct usb_interface_descriptor *idesc) 1696 { 1697 struct usb_interface *iface; 1698 1699 iface = usbd_get_iface(f->udev, f->iface_index); 1700 if (iface && iface->idesc) { 1701 *idesc = *(iface->idesc); 1702 } else { 1703 return (EIO); 1704 } 1705 return (0); 1706 } 1707 1708 static int 1709 ugen_get_endpoint_desc(struct usb_fifo *f, 1710 struct usb_endpoint_descriptor *ed) 1711 { 1712 struct usb_endpoint *ep; 1713 1714 ep = usb_fifo_softc(f); 1715 1716 if (ep && ep->edesc) { 1717 *ed = *ep->edesc; 1718 } else { 1719 return (EINVAL); 1720 } 1721 return (0); 1722 } 1723 1724 static int 1725 ugen_set_power_mode(struct usb_fifo *f, int mode) 1726 { 1727 struct usb_device *udev = f->udev; 1728 int err; 1729 uint8_t old_mode; 1730 1731 if ((udev == NULL) || 1732 (udev->parent_hub == NULL)) { 1733 return (EINVAL); 1734 } 1735 err = priv_check(curthread, PRIV_DRIVER); 1736 if (err) 1737 return (err); 1738 1739 /* get old power mode */ 1740 old_mode = udev->power_mode; 1741 1742 /* if no change, then just return */ 1743 if (old_mode == mode) 1744 return (0); 1745 1746 switch (mode) { 1747 case USB_POWER_MODE_OFF: 1748 if (udev->flags.usb_mode == USB_MODE_HOST && 1749 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1750 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1751 } 1752 /* set power mode will wake up the explore thread */ 1753 break; 1754 1755 case USB_POWER_MODE_ON: 1756 case USB_POWER_MODE_SAVE: 1757 break; 1758 1759 case USB_POWER_MODE_RESUME: 1760 #if USB_HAVE_POWERD 1761 /* let USB-powerd handle resume */ 1762 USB_BUS_LOCK(udev->bus); 1763 udev->pwr_save.write_refs++; 1764 udev->pwr_save.last_xfer_time = ticks; 1765 USB_BUS_UNLOCK(udev->bus); 1766 1767 /* set new power mode */ 1768 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1769 1770 /* wait for resume to complete */ 1771 usb_pause_mtx(NULL, hz / 4); 1772 1773 /* clear write reference */ 1774 USB_BUS_LOCK(udev->bus); 1775 udev->pwr_save.write_refs--; 1776 USB_BUS_UNLOCK(udev->bus); 1777 #endif 1778 mode = USB_POWER_MODE_SAVE; 1779 break; 1780 1781 case USB_POWER_MODE_SUSPEND: 1782 #if USB_HAVE_POWERD 1783 /* let USB-powerd handle suspend */ 1784 USB_BUS_LOCK(udev->bus); 1785 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1786 USB_BUS_UNLOCK(udev->bus); 1787 #endif 1788 mode = USB_POWER_MODE_SAVE; 1789 break; 1790 1791 default: 1792 return (EINVAL); 1793 } 1794 1795 if (err) 1796 return (ENXIO); /* I/O failure */ 1797 1798 /* if we are powered off we need to re-enumerate first */ 1799 if (old_mode == USB_POWER_MODE_OFF) { 1800 if (udev->flags.usb_mode == USB_MODE_HOST && 1801 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1802 udev->re_enumerate_wait = USB_RE_ENUM_START; 1803 } 1804 /* set power mode will wake up the explore thread */ 1805 } 1806 1807 /* set new power mode */ 1808 usbd_set_power_mode(udev, mode); 1809 1810 return (0); /* success */ 1811 } 1812 1813 static int 1814 ugen_get_power_mode(struct usb_fifo *f) 1815 { 1816 struct usb_device *udev = f->udev; 1817 1818 if (udev == NULL) 1819 return (USB_POWER_MODE_ON); 1820 1821 return (udev->power_mode); 1822 } 1823 1824 static int 1825 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1826 { 1827 struct usb_device *udev = f->udev; 1828 struct usb_device *next; 1829 unsigned int nlevel = 0; 1830 1831 if (udev == NULL) 1832 goto error; 1833 1834 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1835 dpp->udp_index = udev->device_index; 1836 1837 /* count port levels */ 1838 next = udev; 1839 while (next->parent_hub != NULL) { 1840 nlevel++; 1841 next = next->parent_hub; 1842 } 1843 1844 /* check if too many levels */ 1845 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1846 goto error; 1847 1848 /* store total level of ports */ 1849 dpp->udp_port_level = nlevel; 1850 1851 /* store port index array */ 1852 next = udev; 1853 while (next->parent_hub != NULL) { 1854 dpp->udp_port_no[--nlevel] = next->port_no; 1855 next = next->parent_hub; 1856 } 1857 return (0); /* success */ 1858 1859 error: 1860 return (EINVAL); /* failure */ 1861 } 1862 1863 static int 1864 ugen_get_power_usage(struct usb_fifo *f) 1865 { 1866 struct usb_device *udev = f->udev; 1867 1868 if (udev == NULL) 1869 return (0); 1870 1871 return (udev->power); 1872 } 1873 1874 static int 1875 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1876 uint8_t set, uint16_t feature) 1877 { 1878 struct usb_device *udev = f->udev; 1879 struct usb_hub *hub; 1880 int err; 1881 1882 err = priv_check(curthread, PRIV_DRIVER); 1883 if (err) { 1884 return (err); 1885 } 1886 if (port_no == 0) { 1887 return (EINVAL); 1888 } 1889 if ((udev == NULL) || 1890 (udev->hub == NULL)) { 1891 return (EINVAL); 1892 } 1893 hub = udev->hub; 1894 1895 if (port_no > hub->nports) { 1896 return (EINVAL); 1897 } 1898 if (set) 1899 err = usbd_req_set_port_feature(udev, 1900 NULL, port_no, feature); 1901 else 1902 err = usbd_req_clear_port_feature(udev, 1903 NULL, port_no, feature); 1904 1905 if (err) 1906 return (ENXIO); /* failure */ 1907 1908 return (0); /* success */ 1909 } 1910 1911 static int 1912 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1913 { 1914 struct usb_fifo *f_rx; 1915 struct usb_fifo *f_tx; 1916 int error = 0; 1917 1918 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1919 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1920 1921 switch (cmd) { 1922 case USB_SET_RX_SHORT_XFER: 1923 if (fflags & FREAD) { 1924 error = ugen_set_short_xfer(f_rx, addr); 1925 } else { 1926 error = EINVAL; 1927 } 1928 break; 1929 1930 case USB_SET_TX_FORCE_SHORT: 1931 if (fflags & FWRITE) { 1932 error = ugen_set_short_xfer(f_tx, addr); 1933 } else { 1934 error = EINVAL; 1935 } 1936 break; 1937 1938 case USB_SET_RX_TIMEOUT: 1939 if (fflags & FREAD) { 1940 error = ugen_set_timeout(f_rx, addr); 1941 } else { 1942 error = EINVAL; 1943 } 1944 break; 1945 1946 case USB_SET_TX_TIMEOUT: 1947 if (fflags & FWRITE) { 1948 error = ugen_set_timeout(f_tx, addr); 1949 } else { 1950 error = EINVAL; 1951 } 1952 break; 1953 1954 case USB_GET_RX_FRAME_SIZE: 1955 if (fflags & FREAD) { 1956 error = ugen_get_frame_size(f_rx, addr); 1957 } else { 1958 error = EINVAL; 1959 } 1960 break; 1961 1962 case USB_GET_TX_FRAME_SIZE: 1963 if (fflags & FWRITE) { 1964 error = ugen_get_frame_size(f_tx, addr); 1965 } else { 1966 error = EINVAL; 1967 } 1968 break; 1969 1970 case USB_SET_RX_BUFFER_SIZE: 1971 if (fflags & FREAD) { 1972 error = ugen_set_buffer_size(f_rx, addr); 1973 } else { 1974 error = EINVAL; 1975 } 1976 break; 1977 1978 case USB_SET_TX_BUFFER_SIZE: 1979 if (fflags & FWRITE) { 1980 error = ugen_set_buffer_size(f_tx, addr); 1981 } else { 1982 error = EINVAL; 1983 } 1984 break; 1985 1986 case USB_GET_RX_BUFFER_SIZE: 1987 if (fflags & FREAD) { 1988 error = ugen_get_buffer_size(f_rx, addr); 1989 } else { 1990 error = EINVAL; 1991 } 1992 break; 1993 1994 case USB_GET_TX_BUFFER_SIZE: 1995 if (fflags & FWRITE) { 1996 error = ugen_get_buffer_size(f_tx, addr); 1997 } else { 1998 error = EINVAL; 1999 } 2000 break; 2001 2002 case USB_GET_RX_INTERFACE_DESC: 2003 if (fflags & FREAD) { 2004 error = ugen_get_iface_desc(f_rx, addr); 2005 } else { 2006 error = EINVAL; 2007 } 2008 break; 2009 2010 case USB_GET_TX_INTERFACE_DESC: 2011 if (fflags & FWRITE) { 2012 error = ugen_get_iface_desc(f_tx, addr); 2013 } else { 2014 error = EINVAL; 2015 } 2016 break; 2017 2018 case USB_GET_RX_ENDPOINT_DESC: 2019 if (fflags & FREAD) { 2020 error = ugen_get_endpoint_desc(f_rx, addr); 2021 } else { 2022 error = EINVAL; 2023 } 2024 break; 2025 2026 case USB_GET_TX_ENDPOINT_DESC: 2027 if (fflags & FWRITE) { 2028 error = ugen_get_endpoint_desc(f_tx, addr); 2029 } else { 2030 error = EINVAL; 2031 } 2032 break; 2033 2034 case USB_SET_RX_STALL_FLAG: 2035 if ((fflags & FREAD) && (*(int *)addr)) { 2036 f_rx->flag_stall = 1; 2037 } 2038 break; 2039 2040 case USB_SET_TX_STALL_FLAG: 2041 if ((fflags & FWRITE) && (*(int *)addr)) { 2042 f_tx->flag_stall = 1; 2043 } 2044 break; 2045 2046 default: 2047 error = ENOIOCTL; 2048 break; 2049 } 2050 return (error); 2051 } 2052 2053 static int 2054 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2055 { 2056 union { 2057 struct usb_interface_descriptor *idesc; 2058 struct usb_alt_interface *ai; 2059 struct usb_device_descriptor *ddesc; 2060 struct usb_config_descriptor *cdesc; 2061 struct usb_device_stats *stat; 2062 struct usb_fs_init *pinit; 2063 struct usb_fs_uninit *puninit; 2064 struct usb_device_port_path *dpp; 2065 uint32_t *ptime; 2066 void *addr; 2067 int *pint; 2068 } u; 2069 struct usb_device_descriptor *dtemp; 2070 struct usb_config_descriptor *ctemp; 2071 struct usb_interface *iface; 2072 int error = 0; 2073 uint8_t n; 2074 2075 u.addr = addr; 2076 2077 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2078 2079 switch (cmd) { 2080 case USB_DISCOVER: 2081 usb_needs_explore_all(); 2082 break; 2083 2084 case USB_SETDEBUG: 2085 if (!(fflags & FWRITE)) { 2086 error = EPERM; 2087 break; 2088 } 2089 usb_debug = *(int *)addr; 2090 break; 2091 2092 case USB_GET_CONFIG: 2093 *(int *)addr = f->udev->curr_config_index; 2094 break; 2095 2096 case USB_SET_CONFIG: 2097 if (!(fflags & FWRITE)) { 2098 error = EPERM; 2099 break; 2100 } 2101 error = ugen_set_config(f, *(int *)addr); 2102 break; 2103 2104 case USB_GET_ALTINTERFACE: 2105 iface = usbd_get_iface(f->udev, 2106 u.ai->uai_interface_index); 2107 if (iface && iface->idesc) { 2108 u.ai->uai_alt_index = iface->alt_index; 2109 } else { 2110 error = EINVAL; 2111 } 2112 break; 2113 2114 case USB_SET_ALTINTERFACE: 2115 if (!(fflags & FWRITE)) { 2116 error = EPERM; 2117 break; 2118 } 2119 error = ugen_set_interface(f, 2120 u.ai->uai_interface_index, u.ai->uai_alt_index); 2121 break; 2122 2123 case USB_GET_DEVICE_DESC: 2124 dtemp = usbd_get_device_descriptor(f->udev); 2125 if (!dtemp) { 2126 error = EIO; 2127 break; 2128 } 2129 *u.ddesc = *dtemp; 2130 break; 2131 2132 case USB_GET_CONFIG_DESC: 2133 ctemp = usbd_get_config_descriptor(f->udev); 2134 if (!ctemp) { 2135 error = EIO; 2136 break; 2137 } 2138 *u.cdesc = *ctemp; 2139 break; 2140 2141 case USB_GET_FULL_DESC: 2142 error = ugen_get_cdesc(f, addr); 2143 break; 2144 2145 case USB_GET_STRING_DESC: 2146 error = ugen_get_sdesc(f, addr); 2147 break; 2148 2149 case USB_GET_IFACE_DRIVER: 2150 error = ugen_get_iface_driver(f, addr); 2151 break; 2152 2153 case USB_REQUEST: 2154 case USB_DO_REQUEST: 2155 if (!(fflags & FWRITE)) { 2156 error = EPERM; 2157 break; 2158 } 2159 error = ugen_do_request(f, addr); 2160 break; 2161 2162 case USB_DEVICEINFO: 2163 case USB_GET_DEVICEINFO: 2164 error = usb_gen_fill_deviceinfo(f, addr); 2165 break; 2166 2167 case USB_DEVICESTATS: 2168 for (n = 0; n != 4; n++) { 2169 2170 u.stat->uds_requests_fail[n] = 2171 f->udev->bus->stats_err.uds_requests[n]; 2172 2173 u.stat->uds_requests_ok[n] = 2174 f->udev->bus->stats_ok.uds_requests[n]; 2175 } 2176 break; 2177 2178 case USB_DEVICEENUMERATE: 2179 error = ugen_re_enumerate(f); 2180 break; 2181 2182 case USB_GET_PLUGTIME: 2183 *u.ptime = f->udev->plugtime; 2184 break; 2185 2186 case USB_CLAIM_INTERFACE: 2187 case USB_RELEASE_INTERFACE: 2188 /* TODO */ 2189 break; 2190 2191 case USB_IFACE_DRIVER_ACTIVE: 2192 2193 n = *u.pint & 0xFF; 2194 2195 iface = usbd_get_iface(f->udev, n); 2196 2197 if (iface && iface->subdev) 2198 error = 0; 2199 else 2200 error = ENXIO; 2201 break; 2202 2203 case USB_IFACE_DRIVER_DETACH: 2204 2205 error = priv_check(curthread, PRIV_DRIVER); 2206 2207 if (error) 2208 break; 2209 2210 n = *u.pint & 0xFF; 2211 2212 if (n == USB_IFACE_INDEX_ANY) { 2213 error = EINVAL; 2214 break; 2215 } 2216 2217 /* 2218 * Detach the currently attached driver. 2219 */ 2220 usb_detach_device(f->udev, n, 0); 2221 2222 /* 2223 * Set parent to self, this should keep attach away 2224 * until the next set configuration event. 2225 */ 2226 usbd_set_parent_iface(f->udev, n, n); 2227 break; 2228 2229 case USB_SET_POWER_MODE: 2230 error = ugen_set_power_mode(f, *u.pint); 2231 break; 2232 2233 case USB_GET_POWER_MODE: 2234 *u.pint = ugen_get_power_mode(f); 2235 break; 2236 2237 case USB_GET_DEV_PORT_PATH: 2238 error = ugen_get_port_path(f, u.dpp); 2239 break; 2240 2241 case USB_GET_POWER_USAGE: 2242 *u.pint = ugen_get_power_usage(f); 2243 break; 2244 2245 case USB_SET_PORT_ENABLE: 2246 error = ugen_do_port_feature(f, 2247 *u.pint, 1, UHF_PORT_ENABLE); 2248 break; 2249 2250 case USB_SET_PORT_DISABLE: 2251 error = ugen_do_port_feature(f, 2252 *u.pint, 0, UHF_PORT_ENABLE); 2253 break; 2254 2255 case USB_FS_INIT: 2256 /* verify input parameters */ 2257 if (u.pinit->pEndpoints == NULL) { 2258 error = EINVAL; 2259 break; 2260 } 2261 if (u.pinit->ep_index_max > 127) { 2262 error = EINVAL; 2263 break; 2264 } 2265 if (u.pinit->ep_index_max == 0) { 2266 error = EINVAL; 2267 break; 2268 } 2269 if (f->fs_xfer != NULL) { 2270 error = EBUSY; 2271 break; 2272 } 2273 if (f->dev_ep_index != 0) { 2274 error = EINVAL; 2275 break; 2276 } 2277 if (ugen_fifo_in_use(f, fflags)) { 2278 error = EBUSY; 2279 break; 2280 } 2281 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2282 if (error) { 2283 break; 2284 } 2285 f->fs_xfer = kmalloc(sizeof(f->fs_xfer[0]) * 2286 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2287 if (f->fs_xfer == NULL) { 2288 usb_fifo_free_buffer(f); 2289 error = ENOMEM; 2290 break; 2291 } 2292 f->fs_ep_max = u.pinit->ep_index_max; 2293 f->fs_ep_ptr = u.pinit->pEndpoints; 2294 break; 2295 2296 case USB_FS_UNINIT: 2297 if (u.puninit->dummy != 0) { 2298 error = EINVAL; 2299 break; 2300 } 2301 error = ugen_fs_uninit(f); 2302 break; 2303 2304 default: 2305 lockmgr(f->priv_lock, LK_EXCLUSIVE); 2306 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2307 lockmgr(f->priv_lock, LK_RELEASE); 2308 break; 2309 } 2310 DPRINTFN(6, "error=%d\n", error); 2311 return (error); 2312 } 2313 2314 static void 2315 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2316 { 2317 ; /* workaround for a bug in "indent" */ 2318 2319 DPRINTF("st=%u alen=%u aframes=%u\n", 2320 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2321 2322 switch (USB_GET_STATE(xfer)) { 2323 case USB_ST_SETUP: 2324 usbd_transfer_submit(xfer); 2325 break; 2326 default: 2327 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2328 break; 2329 } 2330 } 2331 #endif /* USB_HAVE_UGEN */ 2332