1 /* $FreeBSD$ */ 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/mutex.h> 37 #include <sys/condvar.h> 38 #include <sys/sysctl.h> 39 #include <sys/unistd.h> 40 #include <sys/callout.h> 41 #include <sys/malloc.h> 42 #include <sys/priv.h> 43 #include <sys/conf.h> 44 #include <sys/fcntl.h> 45 46 #include <bus/u4b/usb.h> 47 #include <bus/u4b/usb_ioctl.h> 48 #include <bus/u4b/usbdi.h> 49 #include <bus/u4b/usbdi_util.h> 50 51 #define USB_DEBUG_VAR ugen_debug 52 53 #include <bus/u4b/usb_core.h> 54 #include <bus/u4b/usb_dev.h> 55 #include <bus/u4b/usb_mbuf.h> 56 #include <bus/u4b/usb_process.h> 57 #include <bus/u4b/usb_device.h> 58 #include <bus/u4b/usb_debug.h> 59 #include <bus/u4b/usb_request.h> 60 #include <bus/u4b/usb_busdma.h> 61 #include <bus/u4b/usb_util.h> 62 #include <bus/u4b/usb_hub.h> 63 #include <bus/u4b/usb_generic.h> 64 #include <bus/u4b/usb_transfer.h> 65 66 #include <bus/u4b/usb_controller.h> 67 #include <bus/u4b/usb_bus.h> 68 69 #if USB_HAVE_UGEN 70 71 /* defines */ 72 73 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 74 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 75 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 76 77 /* function prototypes */ 78 79 static usb_callback_t ugen_read_clear_stall_callback; 80 static usb_callback_t ugen_write_clear_stall_callback; 81 static usb_callback_t ugen_ctrl_read_callback; 82 static usb_callback_t ugen_ctrl_write_callback; 83 static usb_callback_t ugen_isoc_read_callback; 84 static usb_callback_t ugen_isoc_write_callback; 85 static usb_callback_t ugen_ctrl_fs_callback; 86 87 static usb_fifo_open_t ugen_open; 88 static usb_fifo_close_t ugen_close; 89 static usb_fifo_ioctl_t ugen_ioctl; 90 static usb_fifo_ioctl_t ugen_ioctl_post; 91 static usb_fifo_cmd_t ugen_start_read; 92 static usb_fifo_cmd_t ugen_start_write; 93 static usb_fifo_cmd_t ugen_stop_io; 94 95 static int ugen_transfer_setup(struct usb_fifo *, 96 const struct usb_config *, uint8_t); 97 static int ugen_open_pipe_write(struct usb_fifo *); 98 static int ugen_open_pipe_read(struct usb_fifo *); 99 static int ugen_set_config(struct usb_fifo *, uint8_t); 100 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 101 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 102 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 103 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 104 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 105 struct usb_device_info *); 106 static int ugen_re_enumerate(struct usb_fifo *); 107 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 108 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 109 static int ugen_fs_uninit(struct usb_fifo *f); 110 111 /* structures */ 112 113 struct usb_fifo_methods usb_ugen_methods = { 114 .f_open = &ugen_open, 115 .f_close = &ugen_close, 116 .f_ioctl = &ugen_ioctl, 117 .f_ioctl_post = &ugen_ioctl_post, 118 .f_start_read = &ugen_start_read, 119 .f_stop_read = &ugen_stop_io, 120 .f_start_write = &ugen_start_write, 121 .f_stop_write = &ugen_stop_io, 122 }; 123 124 #ifdef USB_DEBUG 125 static int ugen_debug = 0; 126 127 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 128 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 129 0, "Debug level"); 130 131 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 132 #endif 133 134 135 /* prototypes */ 136 137 static int 138 ugen_transfer_setup(struct usb_fifo *f, 139 const struct usb_config *setup, uint8_t n_setup) 140 { 141 struct usb_endpoint *ep = usb_fifo_softc(f); 142 struct usb_device *udev = f->udev; 143 uint8_t iface_index = ep->iface_index; 144 int error; 145 146 lockmgr(f->priv_lock, LK_RELEASE); 147 148 /* 149 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 150 * exiting the mutex and checking things 151 */ 152 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 153 setup, n_setup, f, f->priv_lock); 154 if (error == 0) { 155 156 if (f->xfer[0]->nframes == 1) { 157 error = usb_fifo_alloc_buffer(f, 158 f->xfer[0]->max_data_length, 2); 159 } else { 160 error = usb_fifo_alloc_buffer(f, 161 f->xfer[0]->max_frame_size, 162 2 * f->xfer[0]->nframes); 163 } 164 if (error) { 165 usbd_transfer_unsetup(f->xfer, n_setup); 166 } 167 } 168 lockmgr(f->priv_lock, LK_EXCLUSIVE); 169 170 return (error); 171 } 172 173 static int 174 ugen_open(struct usb_fifo *f, int fflags) 175 { 176 struct usb_endpoint *ep = usb_fifo_softc(f); 177 struct usb_endpoint_descriptor *ed = ep->edesc; 178 uint8_t type; 179 180 DPRINTFN(6, "flag=0x%x\n", fflags); 181 182 lockmgr(f->priv_lock, LK_EXCLUSIVE); 183 switch (usbd_get_speed(f->udev)) { 184 case USB_SPEED_LOW: 185 case USB_SPEED_FULL: 186 f->nframes = UGEN_HW_FRAMES; 187 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 188 break; 189 default: 190 f->nframes = UGEN_HW_FRAMES * 8; 191 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 192 break; 193 } 194 195 type = ed->bmAttributes & UE_XFERTYPE; 196 if (type == UE_INTERRUPT) { 197 f->bufsize = 0; /* use "wMaxPacketSize" */ 198 } 199 f->timeout = USB_NO_TIMEOUT; 200 f->flag_short = 0; 201 f->fifo_zlp = 0; 202 lockmgr(f->priv_lock, LK_RELEASE); 203 204 return (0); 205 } 206 207 static void 208 ugen_close(struct usb_fifo *f, int fflags) 209 { 210 DPRINTFN(6, "flag=0x%x\n", fflags); 211 212 /* cleanup */ 213 214 lockmgr(f->priv_lock, LK_EXCLUSIVE); 215 usbd_transfer_stop(f->xfer[0]); 216 usbd_transfer_stop(f->xfer[1]); 217 lockmgr(f->priv_lock, LK_RELEASE); 218 219 usbd_transfer_unsetup(f->xfer, 2); 220 usb_fifo_free_buffer(f); 221 222 if (ugen_fs_uninit(f)) { 223 /* ignore any errors - we are closing */ 224 DPRINTFN(6, "no FIFOs\n"); 225 } 226 } 227 228 static int 229 ugen_open_pipe_write(struct usb_fifo *f) 230 { 231 struct usb_config usb_config[2]; 232 struct usb_endpoint *ep = usb_fifo_softc(f); 233 struct usb_endpoint_descriptor *ed = ep->edesc; 234 235 KKASSERT(lockowned(f->priv_lock)); 236 237 if (f->xfer[0] || f->xfer[1]) { 238 /* transfers are already opened */ 239 return (0); 240 } 241 memset(usb_config, 0, sizeof(usb_config)); 242 243 usb_config[1].type = UE_CONTROL; 244 usb_config[1].endpoint = 0; 245 usb_config[1].direction = UE_DIR_ANY; 246 usb_config[1].timeout = 1000; /* 1 second */ 247 usb_config[1].interval = 50;/* 50 milliseconds */ 248 usb_config[1].bufsize = sizeof(struct usb_device_request); 249 usb_config[1].callback = &ugen_write_clear_stall_callback; 250 usb_config[1].usb_mode = USB_MODE_HOST; 251 252 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 253 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 254 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 255 usb_config[0].direction = UE_DIR_TX; 256 usb_config[0].interval = USB_DEFAULT_INTERVAL; 257 usb_config[0].flags.proxy_buffer = 1; 258 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 259 260 switch (ed->bmAttributes & UE_XFERTYPE) { 261 case UE_INTERRUPT: 262 case UE_BULK: 263 if (f->flag_short) { 264 usb_config[0].flags.force_short_xfer = 1; 265 } 266 usb_config[0].callback = &ugen_ctrl_write_callback; 267 usb_config[0].timeout = f->timeout; 268 usb_config[0].frames = 1; 269 usb_config[0].bufsize = f->bufsize; 270 if (ugen_transfer_setup(f, usb_config, 2)) { 271 return (EIO); 272 } 273 /* first transfer does not clear stall */ 274 f->flag_stall = 0; 275 break; 276 277 case UE_ISOCHRONOUS: 278 usb_config[0].flags.short_xfer_ok = 1; 279 usb_config[0].bufsize = 0; /* use default */ 280 usb_config[0].frames = f->nframes; 281 usb_config[0].callback = &ugen_isoc_write_callback; 282 usb_config[0].timeout = 0; 283 284 /* clone configuration */ 285 usb_config[1] = usb_config[0]; 286 287 if (ugen_transfer_setup(f, usb_config, 2)) { 288 return (EIO); 289 } 290 break; 291 default: 292 return (EINVAL); 293 } 294 return (0); 295 } 296 297 static int 298 ugen_open_pipe_read(struct usb_fifo *f) 299 { 300 struct usb_config usb_config[2]; 301 struct usb_endpoint *ep = usb_fifo_softc(f); 302 struct usb_endpoint_descriptor *ed = ep->edesc; 303 304 KKASSERT(lockowned(f->priv_lock)); 305 306 if (f->xfer[0] || f->xfer[1]) { 307 /* transfers are already opened */ 308 return (0); 309 } 310 memset(usb_config, 0, sizeof(usb_config)); 311 312 usb_config[1].type = UE_CONTROL; 313 usb_config[1].endpoint = 0; 314 usb_config[1].direction = UE_DIR_ANY; 315 usb_config[1].timeout = 1000; /* 1 second */ 316 usb_config[1].interval = 50;/* 50 milliseconds */ 317 usb_config[1].bufsize = sizeof(struct usb_device_request); 318 usb_config[1].callback = &ugen_read_clear_stall_callback; 319 usb_config[1].usb_mode = USB_MODE_HOST; 320 321 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 322 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 323 usb_config[0].stream_id = 0; /* XXX support more stream ID's */ 324 usb_config[0].direction = UE_DIR_RX; 325 usb_config[0].interval = USB_DEFAULT_INTERVAL; 326 usb_config[0].flags.proxy_buffer = 1; 327 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 328 329 switch (ed->bmAttributes & UE_XFERTYPE) { 330 case UE_INTERRUPT: 331 case UE_BULK: 332 if (f->flag_short) { 333 usb_config[0].flags.short_xfer_ok = 1; 334 } 335 usb_config[0].timeout = f->timeout; 336 usb_config[0].frames = 1; 337 usb_config[0].callback = &ugen_ctrl_read_callback; 338 usb_config[0].bufsize = f->bufsize; 339 340 if (ugen_transfer_setup(f, usb_config, 2)) { 341 return (EIO); 342 } 343 /* first transfer does not clear stall */ 344 f->flag_stall = 0; 345 break; 346 347 case UE_ISOCHRONOUS: 348 usb_config[0].flags.short_xfer_ok = 1; 349 usb_config[0].bufsize = 0; /* use default */ 350 usb_config[0].frames = f->nframes; 351 usb_config[0].callback = &ugen_isoc_read_callback; 352 usb_config[0].timeout = 0; 353 354 /* clone configuration */ 355 usb_config[1] = usb_config[0]; 356 357 if (ugen_transfer_setup(f, usb_config, 2)) { 358 return (EIO); 359 } 360 break; 361 362 default: 363 return (EINVAL); 364 } 365 return (0); 366 } 367 368 static void 369 ugen_start_read(struct usb_fifo *f) 370 { 371 /* check that pipes are open */ 372 if (ugen_open_pipe_read(f)) { 373 /* signal error */ 374 usb_fifo_put_data_error(f); 375 } 376 /* start transfers */ 377 usbd_transfer_start(f->xfer[0]); 378 usbd_transfer_start(f->xfer[1]); 379 } 380 381 static void 382 ugen_start_write(struct usb_fifo *f) 383 { 384 /* check that pipes are open */ 385 if (ugen_open_pipe_write(f)) { 386 /* signal error */ 387 usb_fifo_get_data_error(f); 388 } 389 /* start transfers */ 390 usbd_transfer_start(f->xfer[0]); 391 usbd_transfer_start(f->xfer[1]); 392 } 393 394 static void 395 ugen_stop_io(struct usb_fifo *f) 396 { 397 /* stop transfers */ 398 usbd_transfer_stop(f->xfer[0]); 399 usbd_transfer_stop(f->xfer[1]); 400 } 401 402 static void 403 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error) 404 { 405 struct usb_fifo *f = usbd_xfer_softc(xfer); 406 struct usb_mbuf *m; 407 408 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 409 410 switch (USB_GET_STATE(xfer)) { 411 case USB_ST_TRANSFERRED: 412 if (xfer->actlen == 0) { 413 if (f->fifo_zlp != 4) { 414 f->fifo_zlp++; 415 } else { 416 /* 417 * Throttle a little bit we have multiple ZLPs 418 * in a row! 419 */ 420 xfer->interval = 64; /* ms */ 421 } 422 } else { 423 /* clear throttle */ 424 xfer->interval = 0; 425 f->fifo_zlp = 0; 426 } 427 usb_fifo_put_data(f, xfer->frbuffers, 0, 428 xfer->actlen, 1); 429 430 case USB_ST_SETUP: 431 if (f->flag_stall) { 432 usbd_transfer_start(f->xfer[1]); 433 break; 434 } 435 USB_IF_POLL(&f->free_q, m); 436 if (m) { 437 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 438 usbd_transfer_submit(xfer); 439 } 440 break; 441 442 default: /* Error */ 443 if (xfer->error != USB_ERR_CANCELLED) { 444 /* send a zero length packet to userland */ 445 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1); 446 f->flag_stall = 1; 447 f->fifo_zlp = 0; 448 usbd_transfer_start(f->xfer[1]); 449 } 450 break; 451 } 452 } 453 454 static void 455 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error) 456 { 457 struct usb_fifo *f = usbd_xfer_softc(xfer); 458 usb_frlength_t actlen; 459 460 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 461 462 switch (USB_GET_STATE(xfer)) { 463 case USB_ST_SETUP: 464 case USB_ST_TRANSFERRED: 465 /* 466 * If writing is in stall, just jump to clear stall 467 * callback and solve the situation. 468 */ 469 if (f->flag_stall) { 470 usbd_transfer_start(f->xfer[1]); 471 break; 472 } 473 /* 474 * Write data, setup and perform hardware transfer. 475 */ 476 if (usb_fifo_get_data(f, xfer->frbuffers, 0, 477 xfer->max_data_length, &actlen, 0)) { 478 usbd_xfer_set_frame_len(xfer, 0, actlen); 479 usbd_transfer_submit(xfer); 480 } 481 break; 482 483 default: /* Error */ 484 if (xfer->error != USB_ERR_CANCELLED) { 485 f->flag_stall = 1; 486 usbd_transfer_start(f->xfer[1]); 487 } 488 break; 489 } 490 } 491 492 static void 493 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 494 { 495 struct usb_fifo *f = usbd_xfer_softc(xfer); 496 struct usb_xfer *xfer_other = f->xfer[0]; 497 498 if (f->flag_stall == 0) { 499 /* nothing to do */ 500 return; 501 } 502 if (usbd_clear_stall_callback(xfer, xfer_other)) { 503 DPRINTFN(5, "f=%p: stall cleared\n", f); 504 f->flag_stall = 0; 505 usbd_transfer_start(xfer_other); 506 } 507 } 508 509 static void 510 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error) 511 { 512 struct usb_fifo *f = usbd_xfer_softc(xfer); 513 struct usb_xfer *xfer_other = f->xfer[0]; 514 515 if (f->flag_stall == 0) { 516 /* nothing to do */ 517 return; 518 } 519 if (usbd_clear_stall_callback(xfer, xfer_other)) { 520 DPRINTFN(5, "f=%p: stall cleared\n", f); 521 f->flag_stall = 0; 522 usbd_transfer_start(xfer_other); 523 } 524 } 525 526 static void 527 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error) 528 { 529 struct usb_fifo *f = usbd_xfer_softc(xfer); 530 usb_frlength_t offset; 531 usb_frcount_t n; 532 533 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 534 535 switch (USB_GET_STATE(xfer)) { 536 case USB_ST_TRANSFERRED: 537 538 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 539 540 offset = 0; 541 542 for (n = 0; n != xfer->aframes; n++) { 543 usb_fifo_put_data(f, xfer->frbuffers, offset, 544 xfer->frlengths[n], 1); 545 offset += xfer->max_frame_size; 546 } 547 548 case USB_ST_SETUP: 549 tr_setup: 550 for (n = 0; n != xfer->nframes; n++) { 551 /* setup size for next transfer */ 552 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size); 553 } 554 usbd_transfer_submit(xfer); 555 break; 556 557 default: /* Error */ 558 if (xfer->error == USB_ERR_CANCELLED) { 559 break; 560 } 561 goto tr_setup; 562 } 563 } 564 565 static void 566 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error) 567 { 568 struct usb_fifo *f = usbd_xfer_softc(xfer); 569 usb_frlength_t actlen; 570 usb_frlength_t offset; 571 usb_frcount_t n; 572 573 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 574 575 switch (USB_GET_STATE(xfer)) { 576 case USB_ST_TRANSFERRED: 577 case USB_ST_SETUP: 578 tr_setup: 579 offset = 0; 580 for (n = 0; n != xfer->nframes; n++) { 581 if (usb_fifo_get_data(f, xfer->frbuffers, offset, 582 xfer->max_frame_size, &actlen, 1)) { 583 usbd_xfer_set_frame_len(xfer, n, actlen); 584 offset += actlen; 585 } else { 586 break; 587 } 588 } 589 590 for (; n != xfer->nframes; n++) { 591 /* fill in zero frames */ 592 usbd_xfer_set_frame_len(xfer, n, 0); 593 } 594 usbd_transfer_submit(xfer); 595 break; 596 597 default: /* Error */ 598 if (xfer->error == USB_ERR_CANCELLED) { 599 break; 600 } 601 goto tr_setup; 602 } 603 } 604 605 static int 606 ugen_set_config(struct usb_fifo *f, uint8_t index) 607 { 608 DPRINTFN(2, "index %u\n", index); 609 610 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 611 /* not possible in device side mode */ 612 return (ENOTTY); 613 } 614 if (f->udev->curr_config_index == index) { 615 /* no change needed */ 616 return (0); 617 } 618 /* make sure all FIFO's are gone */ 619 /* else there can be a deadlock */ 620 if (ugen_fs_uninit(f)) { 621 /* ignore any errors */ 622 DPRINTFN(6, "no FIFOs\n"); 623 } 624 /* change setting - will free generic FIFOs, if any */ 625 if (usbd_set_config_index(f->udev, index)) { 626 return (EIO); 627 } 628 /* probe and attach */ 629 if (usb_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 630 return (EIO); 631 } 632 return (0); 633 } 634 635 static int 636 ugen_set_interface(struct usb_fifo *f, 637 uint8_t iface_index, uint8_t alt_index) 638 { 639 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 640 641 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 642 /* not possible in device side mode */ 643 return (ENOTTY); 644 } 645 /* make sure all FIFO's are gone */ 646 /* else there can be a deadlock */ 647 if (ugen_fs_uninit(f)) { 648 /* ignore any errors */ 649 DPRINTFN(6, "no FIFOs\n"); 650 } 651 /* change setting - will free generic FIFOs, if any */ 652 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) { 653 return (EIO); 654 } 655 /* probe and attach */ 656 if (usb_probe_and_attach(f->udev, iface_index)) { 657 return (EIO); 658 } 659 return (0); 660 } 661 662 /*------------------------------------------------------------------------* 663 * ugen_get_cdesc 664 * 665 * This function will retrieve the complete configuration descriptor 666 * at the given index. 667 *------------------------------------------------------------------------*/ 668 static int 669 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 670 { 671 struct usb_config_descriptor *cdesc; 672 struct usb_device *udev = f->udev; 673 int error; 674 uint16_t len; 675 uint8_t free_data; 676 677 DPRINTFN(6, "\n"); 678 679 if (ugd->ugd_data == NULL) { 680 /* userland pointer should not be zero */ 681 return (EINVAL); 682 } 683 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 684 (ugd->ugd_config_index == udev->curr_config_index)) { 685 cdesc = usbd_get_config_descriptor(udev); 686 if (cdesc == NULL) { 687 return (ENXIO); 688 } 689 free_data = 0; 690 691 } else { 692 #if (USB_HAVE_FIXED_CONFIG == 0) 693 if (usbd_req_get_config_desc_full(udev, 694 NULL, &cdesc, ugd->ugd_config_index)) { 695 return (ENXIO); 696 } 697 free_data = 1; 698 #else 699 /* configuration descriptor data is shared */ 700 return (EINVAL); 701 #endif 702 } 703 704 len = UGETW(cdesc->wTotalLength); 705 if (len > ugd->ugd_maxlen) { 706 len = ugd->ugd_maxlen; 707 } 708 DPRINTFN(6, "len=%u\n", len); 709 710 ugd->ugd_actlen = len; 711 ugd->ugd_offset = 0; 712 713 error = copyout(cdesc, ugd->ugd_data, len); 714 715 if (free_data) 716 usbd_free_config_desc(udev, cdesc); 717 718 return (error); 719 } 720 721 /* 722 * This function is called having the enumeration SX locked which 723 * protects the scratch area used. 724 */ 725 static int 726 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 727 { 728 void *ptr; 729 uint16_t size; 730 int error; 731 732 ptr = f->udev->scratch.data; 733 size = sizeof(f->udev->scratch.data); 734 735 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 736 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 737 error = EINVAL; 738 } else { 739 740 if (size > ((uint8_t *)ptr)[0]) { 741 size = ((uint8_t *)ptr)[0]; 742 } 743 if (size > ugd->ugd_maxlen) { 744 size = ugd->ugd_maxlen; 745 } 746 ugd->ugd_actlen = size; 747 ugd->ugd_offset = 0; 748 749 error = copyout(ptr, ugd->ugd_data, size); 750 } 751 return (error); 752 } 753 754 /*------------------------------------------------------------------------* 755 * ugen_get_iface_driver 756 * 757 * This function generates an USB interface description for userland. 758 * 759 * Returns: 760 * 0: Success 761 * Else: Failure 762 *------------------------------------------------------------------------*/ 763 static int 764 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 765 { 766 struct usb_device *udev = f->udev; 767 struct usb_interface *iface; 768 const char *ptr; 769 const char *desc; 770 unsigned int len; 771 unsigned int maxlen; 772 char buf[128]; 773 int error; 774 775 DPRINTFN(6, "\n"); 776 777 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 778 /* userland pointer should not be zero */ 779 return (EINVAL); 780 } 781 782 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 783 if ((iface == NULL) || (iface->idesc == NULL)) { 784 /* invalid interface index */ 785 return (EINVAL); 786 } 787 788 /* read out device nameunit string, if any */ 789 if ((iface->subdev != NULL) && 790 device_is_attached(iface->subdev) && 791 (ptr = device_get_nameunit(iface->subdev)) && 792 (desc = device_get_desc(iface->subdev))) { 793 794 /* print description */ 795 ksnprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 796 797 /* range checks */ 798 maxlen = ugd->ugd_maxlen - 1; 799 len = strlen(buf); 800 if (len > maxlen) 801 len = maxlen; 802 803 /* update actual length, including terminating zero */ 804 ugd->ugd_actlen = len + 1; 805 806 /* copy out interface description */ 807 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 808 } else { 809 /* zero length string is default */ 810 error = copyout("", ugd->ugd_data, 1); 811 } 812 return (error); 813 } 814 815 /*------------------------------------------------------------------------* 816 * usb_gen_fill_deviceinfo 817 * 818 * This function dumps information about an USB device to the 819 * structure pointed to by the "di" argument. 820 * 821 * Returns: 822 * 0: Success 823 * Else: Failure 824 *------------------------------------------------------------------------*/ 825 static int 826 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 827 { 828 struct usb_device *udev; 829 struct usb_device *hub; 830 831 udev = f->udev; 832 833 bzero(di, sizeof(di[0])); 834 835 di->udi_bus = device_get_unit(udev->bus->bdev); 836 di->udi_addr = udev->address; 837 di->udi_index = udev->device_index; 838 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 839 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 840 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 841 usb_printbcd(di->udi_release, sizeof(di->udi_release), 842 UGETW(udev->ddesc.bcdDevice)); 843 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 844 di->udi_productNo = UGETW(udev->ddesc.idProduct); 845 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 846 di->udi_class = udev->ddesc.bDeviceClass; 847 di->udi_subclass = udev->ddesc.bDeviceSubClass; 848 di->udi_protocol = udev->ddesc.bDeviceProtocol; 849 di->udi_config_no = udev->curr_config_no; 850 di->udi_config_index = udev->curr_config_index; 851 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 852 di->udi_speed = udev->speed; 853 di->udi_mode = udev->flags.usb_mode; 854 di->udi_power_mode = udev->power_mode; 855 di->udi_suspended = udev->flags.peer_suspended; 856 857 hub = udev->parent_hub; 858 if (hub) { 859 di->udi_hubaddr = hub->address; 860 di->udi_hubindex = hub->device_index; 861 di->udi_hubport = udev->port_no; 862 } 863 return (0); 864 } 865 866 /*------------------------------------------------------------------------* 867 * ugen_check_request 868 * 869 * Return values: 870 * 0: Access allowed 871 * Else: No access 872 *------------------------------------------------------------------------*/ 873 static int 874 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 875 { 876 struct usb_endpoint *ep; 877 int error; 878 879 /* 880 * Avoid requests that would damage the bus integrity: 881 */ 882 if (((req->bmRequestType == UT_WRITE_DEVICE) && 883 (req->bRequest == UR_SET_ADDRESS)) || 884 ((req->bmRequestType == UT_WRITE_DEVICE) && 885 (req->bRequest == UR_SET_CONFIG)) || 886 ((req->bmRequestType == UT_WRITE_INTERFACE) && 887 (req->bRequest == UR_SET_INTERFACE))) { 888 /* 889 * These requests can be useful for testing USB drivers. 890 */ 891 error = priv_check(curthread, PRIV_DRIVER); 892 if (error) { 893 return (error); 894 } 895 } 896 /* 897 * Special case - handle clearing of stall 898 */ 899 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 900 901 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 902 if (ep == NULL) { 903 return (EINVAL); 904 } 905 if ((req->bRequest == UR_CLEAR_FEATURE) && 906 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 907 usbd_clear_data_toggle(udev, ep); 908 } 909 } 910 /* TODO: add more checks to verify the interface index */ 911 912 return (0); 913 } 914 915 int 916 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 917 { 918 int error; 919 uint16_t len; 920 uint16_t actlen; 921 922 if (ugen_check_request(f->udev, &ur->ucr_request)) { 923 return (EPERM); 924 } 925 len = UGETW(ur->ucr_request.wLength); 926 927 /* check if "ucr_data" is valid */ 928 if (len != 0) { 929 if (ur->ucr_data == NULL) { 930 return (EFAULT); 931 } 932 } 933 /* do the USB request */ 934 error = usbd_do_request_flags 935 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 936 (ur->ucr_flags & USB_SHORT_XFER_OK) | 937 USB_USER_DATA_PTR, &actlen, 938 USB_DEFAULT_TIMEOUT); 939 940 ur->ucr_actlen = actlen; 941 942 if (error) { 943 error = EIO; 944 } 945 return (error); 946 } 947 948 /*------------------------------------------------------------------------ 949 * ugen_re_enumerate 950 *------------------------------------------------------------------------*/ 951 static int 952 ugen_re_enumerate(struct usb_fifo *f) 953 { 954 struct usb_device *udev = f->udev; 955 int error; 956 957 /* 958 * This request can be useful for testing USB drivers: 959 */ 960 error = priv_check(curthread, PRIV_DRIVER); 961 if (error) { 962 return (error); 963 } 964 if (udev->flags.usb_mode != USB_MODE_HOST) { 965 /* not possible in device side mode */ 966 DPRINTFN(6, "device mode\n"); 967 return (ENOTTY); 968 } 969 if (udev->parent_hub == NULL) { 970 /* the root HUB cannot be re-enumerated */ 971 DPRINTFN(6, "cannot reset root HUB\n"); 972 return (EINVAL); 973 } 974 /* make sure all FIFO's are gone */ 975 /* else there can be a deadlock */ 976 if (ugen_fs_uninit(f)) { 977 /* ignore any errors */ 978 DPRINTFN(6, "no FIFOs\n"); 979 } 980 /* start re-enumeration of device */ 981 usbd_start_re_enumerate(udev); 982 return (0); 983 } 984 985 int 986 ugen_fs_uninit(struct usb_fifo *f) 987 { 988 if (f->fs_xfer == NULL) { 989 return (EINVAL); 990 } 991 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 992 kfree(f->fs_xfer, M_USB); 993 f->fs_xfer = NULL; 994 f->fs_ep_max = 0; 995 f->fs_ep_ptr = NULL; 996 f->flag_iscomplete = 0; 997 usb_fifo_free_buffer(f); 998 return (0); 999 } 1000 1001 static uint8_t 1002 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 1003 { 1004 struct usb_mbuf *m; 1005 1006 USB_IF_DEQUEUE(&f->used_q, m); 1007 1008 if (m) { 1009 *pindex = *((uint8_t *)(m->cur_data_ptr)); 1010 1011 USB_IF_ENQUEUE(&f->free_q, m); 1012 1013 return (0); /* success */ 1014 } else { 1015 1016 *pindex = 0; /* fix compiler warning */ 1017 1018 f->flag_iscomplete = 0; 1019 } 1020 return (1); /* failure */ 1021 } 1022 1023 static void 1024 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1025 { 1026 struct usb_mbuf *m; 1027 1028 USB_IF_DEQUEUE(&f->free_q, m); 1029 1030 if (m == NULL) { 1031 /* can happen during close */ 1032 DPRINTF("out of buffers\n"); 1033 return; 1034 } 1035 USB_MBUF_RESET(m); 1036 1037 *((uint8_t *)(m->cur_data_ptr)) = index; 1038 1039 USB_IF_ENQUEUE(&f->used_q, m); 1040 1041 f->flag_iscomplete = 1; 1042 1043 usb_fifo_wakeup(f); 1044 } 1045 1046 static int 1047 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1048 { 1049 struct usb_device_request *req; 1050 struct usb_xfer *xfer; 1051 struct usb_fs_endpoint fs_ep; 1052 void *uaddr; /* userland pointer */ 1053 void *kaddr; 1054 usb_frlength_t offset; 1055 usb_frlength_t rem; 1056 usb_frcount_t n; 1057 uint32_t length; 1058 int error; 1059 uint8_t isread; 1060 1061 if (ep_index >= f->fs_ep_max) { 1062 return (EINVAL); 1063 } 1064 xfer = f->fs_xfer[ep_index]; 1065 if (xfer == NULL) { 1066 return (EINVAL); 1067 } 1068 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1069 if (usbd_transfer_pending(xfer)) { 1070 lockmgr(f->priv_lock, LK_RELEASE); 1071 return (EBUSY); /* should not happen */ 1072 } 1073 lockmgr(f->priv_lock, LK_RELEASE); 1074 1075 error = copyin(f->fs_ep_ptr + 1076 ep_index, &fs_ep, sizeof(fs_ep)); 1077 if (error) { 1078 return (error); 1079 } 1080 /* security checks */ 1081 1082 if (fs_ep.nFrames > xfer->max_frame_count) { 1083 xfer->error = USB_ERR_INVAL; 1084 goto complete; 1085 } 1086 if (fs_ep.nFrames == 0) { 1087 xfer->error = USB_ERR_INVAL; 1088 goto complete; 1089 } 1090 error = copyin(fs_ep.ppBuffer, 1091 &uaddr, sizeof(uaddr)); 1092 if (error) { 1093 return (error); 1094 } 1095 /* reset first frame */ 1096 usbd_xfer_set_frame_offset(xfer, 0, 0); 1097 1098 if (xfer->flags_int.control_xfr) { 1099 1100 req = xfer->frbuffers[0].buffer; 1101 1102 error = copyin(fs_ep.pLength, 1103 &length, sizeof(length)); 1104 if (error) { 1105 return (error); 1106 } 1107 if (length != sizeof(*req)) { 1108 xfer->error = USB_ERR_INVAL; 1109 goto complete; 1110 } 1111 if (length != 0) { 1112 error = copyin(uaddr, req, length); 1113 if (error) { 1114 return (error); 1115 } 1116 } 1117 if (ugen_check_request(f->udev, req)) { 1118 xfer->error = USB_ERR_INVAL; 1119 goto complete; 1120 } 1121 usbd_xfer_set_frame_len(xfer, 0, length); 1122 1123 /* Host mode only ! */ 1124 if ((req->bmRequestType & 1125 (UT_READ | UT_WRITE)) == UT_READ) { 1126 isread = 1; 1127 } else { 1128 isread = 0; 1129 } 1130 n = 1; 1131 offset = sizeof(*req); 1132 1133 } else { 1134 /* Device and Host mode */ 1135 if (USB_GET_DATA_ISREAD(xfer)) { 1136 isread = 1; 1137 } else { 1138 isread = 0; 1139 } 1140 n = 0; 1141 offset = 0; 1142 } 1143 1144 rem = usbd_xfer_max_len(xfer); 1145 xfer->nframes = fs_ep.nFrames; 1146 xfer->timeout = fs_ep.timeout; 1147 if (xfer->timeout > 65535) { 1148 xfer->timeout = 65535; 1149 } 1150 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1151 xfer->flags.short_xfer_ok = 1; 1152 else 1153 xfer->flags.short_xfer_ok = 0; 1154 1155 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1156 xfer->flags.short_frames_ok = 1; 1157 else 1158 xfer->flags.short_frames_ok = 0; 1159 1160 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1161 xfer->flags.force_short_xfer = 1; 1162 else 1163 xfer->flags.force_short_xfer = 0; 1164 1165 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1166 usbd_xfer_set_stall(xfer); 1167 else 1168 xfer->flags.stall_pipe = 0; 1169 1170 for (; n != xfer->nframes; n++) { 1171 1172 error = copyin(fs_ep.pLength + n, 1173 &length, sizeof(length)); 1174 if (error) { 1175 break; 1176 } 1177 usbd_xfer_set_frame_len(xfer, n, length); 1178 1179 if (length > rem) { 1180 xfer->error = USB_ERR_INVAL; 1181 goto complete; 1182 } 1183 rem -= length; 1184 1185 if (!isread) { 1186 1187 /* we need to know the source buffer */ 1188 error = copyin(fs_ep.ppBuffer + n, 1189 &uaddr, sizeof(uaddr)); 1190 if (error) { 1191 break; 1192 } 1193 if (xfer->flags_int.isochronous_xfr) { 1194 /* get kernel buffer address */ 1195 kaddr = xfer->frbuffers[0].buffer; 1196 kaddr = USB_ADD_BYTES(kaddr, offset); 1197 } else { 1198 /* set current frame offset */ 1199 usbd_xfer_set_frame_offset(xfer, offset, n); 1200 1201 /* get kernel buffer address */ 1202 kaddr = xfer->frbuffers[n].buffer; 1203 } 1204 1205 /* move data */ 1206 error = copyin(uaddr, kaddr, length); 1207 if (error) { 1208 break; 1209 } 1210 } 1211 offset += length; 1212 } 1213 return (error); 1214 1215 complete: 1216 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1217 ugen_fs_set_complete(f, ep_index); 1218 lockmgr(f->priv_lock, LK_RELEASE); 1219 return (0); 1220 } 1221 1222 static int 1223 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1224 { 1225 struct usb_device_request *req; 1226 struct usb_xfer *xfer; 1227 struct usb_fs_endpoint fs_ep; 1228 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1229 void *uaddr; /* userland ptr */ 1230 void *kaddr; 1231 usb_frlength_t offset; 1232 usb_frlength_t rem; 1233 usb_frcount_t n; 1234 uint32_t length; 1235 uint32_t temp; 1236 int error; 1237 uint8_t isread; 1238 1239 if (ep_index >= f->fs_ep_max) 1240 return (EINVAL); 1241 1242 xfer = f->fs_xfer[ep_index]; 1243 if (xfer == NULL) 1244 return (EINVAL); 1245 1246 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1247 if (usbd_transfer_pending(xfer)) { 1248 lockmgr(f->priv_lock, LK_RELEASE); 1249 return (EBUSY); /* should not happen */ 1250 } 1251 lockmgr(f->priv_lock, LK_RELEASE); 1252 1253 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1254 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1255 if (error) { 1256 return (error); 1257 } 1258 fs_ep.status = xfer->error; 1259 fs_ep.aFrames = xfer->aframes; 1260 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1261 if (xfer->error) { 1262 goto complete; 1263 } 1264 if (xfer->flags_int.control_xfr) { 1265 req = xfer->frbuffers[0].buffer; 1266 1267 /* Host mode only ! */ 1268 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1269 isread = 1; 1270 } else { 1271 isread = 0; 1272 } 1273 if (xfer->nframes == 0) 1274 n = 0; /* should never happen */ 1275 else 1276 n = 1; 1277 } else { 1278 /* Device and Host mode */ 1279 if (USB_GET_DATA_ISREAD(xfer)) { 1280 isread = 1; 1281 } else { 1282 isread = 0; 1283 } 1284 n = 0; 1285 } 1286 1287 /* Update lengths and copy out data */ 1288 1289 rem = usbd_xfer_max_len(xfer); 1290 offset = 0; 1291 1292 for (; n != xfer->nframes; n++) { 1293 1294 /* get initial length into "temp" */ 1295 error = copyin(fs_ep.pLength + n, 1296 &temp, sizeof(temp)); 1297 if (error) { 1298 return (error); 1299 } 1300 if (temp > rem) { 1301 /* the userland length has been corrupted */ 1302 DPRINTF("corrupt userland length " 1303 "%u > %u\n", temp, rem); 1304 fs_ep.status = USB_ERR_INVAL; 1305 goto complete; 1306 } 1307 rem -= temp; 1308 1309 /* get actual transfer length */ 1310 length = xfer->frlengths[n]; 1311 if (length > temp) { 1312 /* data overflow */ 1313 fs_ep.status = USB_ERR_INVAL; 1314 DPRINTF("data overflow %u > %u\n", 1315 length, temp); 1316 goto complete; 1317 } 1318 if (isread) { 1319 1320 /* we need to know the destination buffer */ 1321 error = copyin(fs_ep.ppBuffer + n, 1322 &uaddr, sizeof(uaddr)); 1323 if (error) { 1324 return (error); 1325 } 1326 if (xfer->flags_int.isochronous_xfr) { 1327 /* only one frame buffer */ 1328 kaddr = USB_ADD_BYTES( 1329 xfer->frbuffers[0].buffer, offset); 1330 } else { 1331 /* multiple frame buffers */ 1332 kaddr = xfer->frbuffers[n].buffer; 1333 } 1334 1335 /* move data */ 1336 error = copyout(kaddr, uaddr, length); 1337 if (error) { 1338 return (error); 1339 } 1340 } 1341 /* 1342 * Update offset according to initial length, which is 1343 * needed by isochronous transfers! 1344 */ 1345 offset += temp; 1346 1347 /* update length */ 1348 error = copyout(&length, 1349 fs_ep.pLength + n, sizeof(length)); 1350 if (error) { 1351 return (error); 1352 } 1353 } 1354 1355 complete: 1356 /* update "aFrames" */ 1357 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1358 sizeof(fs_ep.aFrames)); 1359 if (error) 1360 goto done; 1361 1362 /* update "isoc_time_complete" */ 1363 error = copyout(&fs_ep.isoc_time_complete, 1364 &fs_ep_uptr->isoc_time_complete, 1365 sizeof(fs_ep.isoc_time_complete)); 1366 if (error) 1367 goto done; 1368 /* update "status" */ 1369 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1370 sizeof(fs_ep.status)); 1371 done: 1372 return (error); 1373 } 1374 1375 static uint8_t 1376 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1377 { 1378 struct usb_fifo *f_rx; 1379 struct usb_fifo *f_tx; 1380 1381 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1382 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1383 1384 if ((fflags & FREAD) && f_rx && 1385 (f_rx->xfer[0] || f_rx->xfer[1])) { 1386 return (1); /* RX FIFO in use */ 1387 } 1388 if ((fflags & FWRITE) && f_tx && 1389 (f_tx->xfer[0] || f_tx->xfer[1])) { 1390 return (1); /* TX FIFO in use */ 1391 } 1392 return (0); /* not in use */ 1393 } 1394 1395 static int 1396 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1397 { 1398 struct usb_config usb_config[1]; 1399 struct usb_device_request req; 1400 union { 1401 struct usb_fs_complete *pcomp; 1402 struct usb_fs_start *pstart; 1403 struct usb_fs_stop *pstop; 1404 struct usb_fs_open *popen; 1405 struct usb_fs_open_stream *popen_stream; 1406 struct usb_fs_close *pclose; 1407 struct usb_fs_clear_stall_sync *pstall; 1408 void *addr; 1409 } u; 1410 struct usb_endpoint *ep; 1411 struct usb_endpoint_descriptor *ed; 1412 struct usb_xfer *xfer; 1413 int error = 0; 1414 uint8_t iface_index; 1415 uint8_t isread; 1416 uint8_t ep_index; 1417 uint8_t pre_scale; 1418 1419 u.addr = addr; 1420 1421 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1422 1423 switch (cmd) { 1424 case USB_FS_COMPLETE: 1425 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1426 error = ugen_fs_get_complete(f, &ep_index); 1427 lockmgr(f->priv_lock, LK_RELEASE); 1428 1429 if (error) { 1430 error = EBUSY; 1431 break; 1432 } 1433 u.pcomp->ep_index = ep_index; 1434 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1435 break; 1436 1437 case USB_FS_START: 1438 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1439 if (error) 1440 break; 1441 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1442 xfer = f->fs_xfer[u.pstart->ep_index]; 1443 usbd_transfer_start(xfer); 1444 lockmgr(f->priv_lock, LK_RELEASE); 1445 break; 1446 1447 case USB_FS_STOP: 1448 if (u.pstop->ep_index >= f->fs_ep_max) { 1449 error = EINVAL; 1450 break; 1451 } 1452 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1453 xfer = f->fs_xfer[u.pstart->ep_index]; 1454 if (usbd_transfer_pending(xfer)) { 1455 usbd_transfer_stop(xfer); 1456 /* 1457 * Check if the USB transfer was stopped 1458 * before it was even started. Else a cancel 1459 * callback will be pending. 1460 */ 1461 if (!xfer->flags_int.transferring) { 1462 ugen_fs_set_complete(xfer->priv_sc, 1463 USB_P2U(xfer->priv_fifo)); 1464 } 1465 } 1466 lockmgr(f->priv_lock, LK_RELEASE); 1467 break; 1468 1469 case USB_FS_OPEN: 1470 case USB_FS_OPEN_STREAM: 1471 if (u.popen->ep_index >= f->fs_ep_max) { 1472 error = EINVAL; 1473 break; 1474 } 1475 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1476 error = EBUSY; 1477 break; 1478 } 1479 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1480 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1481 } 1482 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1483 pre_scale = 1; 1484 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1485 } else { 1486 pre_scale = 0; 1487 } 1488 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1489 u.popen->max_frames = USB_FS_MAX_FRAMES; 1490 break; 1491 } 1492 if (u.popen->max_frames == 0) { 1493 error = EINVAL; 1494 break; 1495 } 1496 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1497 if (ep == NULL) { 1498 error = EINVAL; 1499 break; 1500 } 1501 ed = ep->edesc; 1502 if (ed == NULL) { 1503 error = ENXIO; 1504 break; 1505 } 1506 iface_index = ep->iface_index; 1507 1508 memset(usb_config, 0, sizeof(usb_config)); 1509 1510 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1511 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1512 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1513 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1514 usb_config[0].flags.proxy_buffer = 1; 1515 if (pre_scale != 0) 1516 usb_config[0].flags.pre_scale_frames = 1; 1517 usb_config[0].callback = &ugen_ctrl_fs_callback; 1518 usb_config[0].timeout = 0; /* no timeout */ 1519 usb_config[0].frames = u.popen->max_frames; 1520 usb_config[0].bufsize = u.popen->max_bufsize; 1521 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1522 if (cmd == USB_FS_OPEN_STREAM) 1523 usb_config[0].stream_id = u.popen_stream->stream_id; 1524 1525 if (usb_config[0].type == UE_CONTROL) { 1526 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1527 error = EINVAL; 1528 break; 1529 } 1530 } else { 1531 1532 isread = ((usb_config[0].endpoint & 1533 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1534 1535 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1536 isread = !isread; 1537 } 1538 /* check permissions */ 1539 if (isread) { 1540 if (!(fflags & FREAD)) { 1541 error = EPERM; 1542 break; 1543 } 1544 } else { 1545 if (!(fflags & FWRITE)) { 1546 error = EPERM; 1547 break; 1548 } 1549 } 1550 } 1551 error = usbd_transfer_setup(f->udev, &iface_index, 1552 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1553 f, f->priv_lock); 1554 if (error == 0) { 1555 /* update maximums */ 1556 u.popen->max_packet_length = 1557 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1558 u.popen->max_bufsize = 1559 f->fs_xfer[u.popen->ep_index]->max_data_length; 1560 /* update number of frames */ 1561 u.popen->max_frames = 1562 f->fs_xfer[u.popen->ep_index]->nframes; 1563 /* store index of endpoint */ 1564 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1565 ((uint8_t *)0) + u.popen->ep_index; 1566 } else { 1567 error = ENOMEM; 1568 } 1569 break; 1570 1571 case USB_FS_CLOSE: 1572 if (u.pclose->ep_index >= f->fs_ep_max) { 1573 error = EINVAL; 1574 break; 1575 } 1576 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1577 error = EINVAL; 1578 break; 1579 } 1580 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1581 break; 1582 1583 case USB_FS_CLEAR_STALL_SYNC: 1584 if (u.pstall->ep_index >= f->fs_ep_max) { 1585 error = EINVAL; 1586 break; 1587 } 1588 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1589 error = EINVAL; 1590 break; 1591 } 1592 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1593 error = EINVAL; 1594 break; 1595 } 1596 lockmgr(f->priv_lock, LK_EXCLUSIVE); 1597 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1598 lockmgr(f->priv_lock, LK_RELEASE); 1599 1600 if (error) { 1601 return (EBUSY); 1602 } 1603 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1604 1605 /* setup a clear-stall packet */ 1606 req.bmRequestType = UT_WRITE_ENDPOINT; 1607 req.bRequest = UR_CLEAR_FEATURE; 1608 USETW(req.wValue, UF_ENDPOINT_HALT); 1609 req.wIndex[0] = ep->edesc->bEndpointAddress; 1610 req.wIndex[1] = 0; 1611 USETW(req.wLength, 0); 1612 1613 error = usbd_do_request(f->udev, NULL, &req, NULL); 1614 if (error == 0) { 1615 usbd_clear_data_toggle(f->udev, ep); 1616 } else { 1617 error = ENXIO; 1618 } 1619 break; 1620 1621 default: 1622 error = ENOIOCTL; 1623 break; 1624 } 1625 1626 DPRINTFN(6, "error=%d\n", error); 1627 1628 return (error); 1629 } 1630 1631 static int 1632 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1633 { 1634 uint8_t t; 1635 1636 if (*(int *)addr) 1637 t = 1; 1638 else 1639 t = 0; 1640 1641 if (f->flag_short == t) { 1642 /* same value like before - accept */ 1643 return (0); 1644 } 1645 if (f->xfer[0] || f->xfer[1]) { 1646 /* cannot change this during transfer */ 1647 return (EBUSY); 1648 } 1649 f->flag_short = t; 1650 return (0); 1651 } 1652 1653 static int 1654 ugen_set_timeout(struct usb_fifo *f, void *addr) 1655 { 1656 f->timeout = *(int *)addr; 1657 if (f->timeout > 65535) { 1658 /* limit user input */ 1659 f->timeout = 65535; 1660 } 1661 return (0); 1662 } 1663 1664 static int 1665 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1666 { 1667 if (f->xfer[0]) { 1668 *(int *)addr = f->xfer[0]->max_frame_size; 1669 } else { 1670 return (EINVAL); 1671 } 1672 return (0); 1673 } 1674 1675 static int 1676 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1677 { 1678 usb_frlength_t t; 1679 1680 if (*(int *)addr < 0) 1681 t = 0; /* use "wMaxPacketSize" */ 1682 else if (*(int *)addr < (256 * 1024)) 1683 t = *(int *)addr; 1684 else 1685 t = 256 * 1024; 1686 1687 if (f->bufsize == t) { 1688 /* same value like before - accept */ 1689 return (0); 1690 } 1691 if (f->xfer[0] || f->xfer[1]) { 1692 /* cannot change this during transfer */ 1693 return (EBUSY); 1694 } 1695 f->bufsize = t; 1696 return (0); 1697 } 1698 1699 static int 1700 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1701 { 1702 *(int *)addr = f->bufsize; 1703 return (0); 1704 } 1705 1706 static int 1707 ugen_get_iface_desc(struct usb_fifo *f, 1708 struct usb_interface_descriptor *idesc) 1709 { 1710 struct usb_interface *iface; 1711 1712 iface = usbd_get_iface(f->udev, f->iface_index); 1713 if (iface && iface->idesc) { 1714 *idesc = *(iface->idesc); 1715 } else { 1716 return (EIO); 1717 } 1718 return (0); 1719 } 1720 1721 static int 1722 ugen_get_endpoint_desc(struct usb_fifo *f, 1723 struct usb_endpoint_descriptor *ed) 1724 { 1725 struct usb_endpoint *ep; 1726 1727 ep = usb_fifo_softc(f); 1728 1729 if (ep && ep->edesc) { 1730 *ed = *ep->edesc; 1731 } else { 1732 return (EINVAL); 1733 } 1734 return (0); 1735 } 1736 1737 static int 1738 ugen_set_power_mode(struct usb_fifo *f, int mode) 1739 { 1740 struct usb_device *udev = f->udev; 1741 int err; 1742 uint8_t old_mode; 1743 1744 if ((udev == NULL) || 1745 (udev->parent_hub == NULL)) { 1746 return (EINVAL); 1747 } 1748 err = priv_check(curthread, PRIV_DRIVER); 1749 if (err) 1750 return (err); 1751 1752 /* get old power mode */ 1753 old_mode = udev->power_mode; 1754 1755 /* if no change, then just return */ 1756 if (old_mode == mode) 1757 return (0); 1758 1759 switch (mode) { 1760 case USB_POWER_MODE_OFF: 1761 if (udev->flags.usb_mode == USB_MODE_HOST && 1762 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1763 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1764 } 1765 /* set power mode will wake up the explore thread */ 1766 break; 1767 1768 case USB_POWER_MODE_ON: 1769 case USB_POWER_MODE_SAVE: 1770 break; 1771 1772 case USB_POWER_MODE_RESUME: 1773 #if USB_HAVE_POWERD 1774 /* let USB-powerd handle resume */ 1775 USB_BUS_LOCK(udev->bus); 1776 udev->pwr_save.write_refs++; 1777 udev->pwr_save.last_xfer_time = ticks; 1778 USB_BUS_UNLOCK(udev->bus); 1779 1780 /* set new power mode */ 1781 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1782 1783 /* wait for resume to complete */ 1784 usb_pause_mtx(NULL, hz / 4); 1785 1786 /* clear write reference */ 1787 USB_BUS_LOCK(udev->bus); 1788 udev->pwr_save.write_refs--; 1789 USB_BUS_UNLOCK(udev->bus); 1790 #endif 1791 mode = USB_POWER_MODE_SAVE; 1792 break; 1793 1794 case USB_POWER_MODE_SUSPEND: 1795 #if USB_HAVE_POWERD 1796 /* let USB-powerd handle suspend */ 1797 USB_BUS_LOCK(udev->bus); 1798 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1799 USB_BUS_UNLOCK(udev->bus); 1800 #endif 1801 mode = USB_POWER_MODE_SAVE; 1802 break; 1803 1804 default: 1805 return (EINVAL); 1806 } 1807 1808 if (err) 1809 return (ENXIO); /* I/O failure */ 1810 1811 /* if we are powered off we need to re-enumerate first */ 1812 if (old_mode == USB_POWER_MODE_OFF) { 1813 if (udev->flags.usb_mode == USB_MODE_HOST && 1814 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1815 udev->re_enumerate_wait = USB_RE_ENUM_START; 1816 } 1817 /* set power mode will wake up the explore thread */ 1818 } 1819 1820 /* set new power mode */ 1821 usbd_set_power_mode(udev, mode); 1822 1823 return (0); /* success */ 1824 } 1825 1826 static int 1827 ugen_get_power_mode(struct usb_fifo *f) 1828 { 1829 struct usb_device *udev = f->udev; 1830 1831 if (udev == NULL) 1832 return (USB_POWER_MODE_ON); 1833 1834 return (udev->power_mode); 1835 } 1836 1837 static int 1838 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1839 { 1840 struct usb_device *udev = f->udev; 1841 struct usb_device *next; 1842 unsigned int nlevel = 0; 1843 1844 if (udev == NULL) 1845 goto error; 1846 1847 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1848 dpp->udp_index = udev->device_index; 1849 1850 /* count port levels */ 1851 next = udev; 1852 while (next->parent_hub != NULL) { 1853 nlevel++; 1854 next = next->parent_hub; 1855 } 1856 1857 /* check if too many levels */ 1858 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1859 goto error; 1860 1861 /* store port index array */ 1862 next = udev; 1863 while (next->parent_hub != NULL) { 1864 nlevel--; 1865 1866 dpp->udp_port_no[nlevel] = next->port_no; 1867 dpp->udp_port_level = nlevel; 1868 1869 next = next->parent_hub; 1870 } 1871 return (0); /* success */ 1872 1873 error: 1874 return (EINVAL); /* failure */ 1875 } 1876 1877 static int 1878 ugen_get_power_usage(struct usb_fifo *f) 1879 { 1880 struct usb_device *udev = f->udev; 1881 1882 if (udev == NULL) 1883 return (0); 1884 1885 return (udev->power); 1886 } 1887 1888 static int 1889 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1890 uint8_t set, uint16_t feature) 1891 { 1892 struct usb_device *udev = f->udev; 1893 struct usb_hub *hub; 1894 int err; 1895 1896 err = priv_check(curthread, PRIV_DRIVER); 1897 if (err) { 1898 return (err); 1899 } 1900 if (port_no == 0) { 1901 return (EINVAL); 1902 } 1903 if ((udev == NULL) || 1904 (udev->hub == NULL)) { 1905 return (EINVAL); 1906 } 1907 hub = udev->hub; 1908 1909 if (port_no > hub->nports) { 1910 return (EINVAL); 1911 } 1912 if (set) 1913 err = usbd_req_set_port_feature(udev, 1914 NULL, port_no, feature); 1915 else 1916 err = usbd_req_clear_port_feature(udev, 1917 NULL, port_no, feature); 1918 1919 if (err) 1920 return (ENXIO); /* failure */ 1921 1922 return (0); /* success */ 1923 } 1924 1925 static int 1926 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1927 { 1928 struct usb_fifo *f_rx; 1929 struct usb_fifo *f_tx; 1930 int error = 0; 1931 1932 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1933 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1934 1935 switch (cmd) { 1936 case USB_SET_RX_SHORT_XFER: 1937 if (fflags & FREAD) { 1938 error = ugen_set_short_xfer(f_rx, addr); 1939 } else { 1940 error = EINVAL; 1941 } 1942 break; 1943 1944 case USB_SET_TX_FORCE_SHORT: 1945 if (fflags & FWRITE) { 1946 error = ugen_set_short_xfer(f_tx, addr); 1947 } else { 1948 error = EINVAL; 1949 } 1950 break; 1951 1952 case USB_SET_RX_TIMEOUT: 1953 if (fflags & FREAD) { 1954 error = ugen_set_timeout(f_rx, addr); 1955 } else { 1956 error = EINVAL; 1957 } 1958 break; 1959 1960 case USB_SET_TX_TIMEOUT: 1961 if (fflags & FWRITE) { 1962 error = ugen_set_timeout(f_tx, addr); 1963 } else { 1964 error = EINVAL; 1965 } 1966 break; 1967 1968 case USB_GET_RX_FRAME_SIZE: 1969 if (fflags & FREAD) { 1970 error = ugen_get_frame_size(f_rx, addr); 1971 } else { 1972 error = EINVAL; 1973 } 1974 break; 1975 1976 case USB_GET_TX_FRAME_SIZE: 1977 if (fflags & FWRITE) { 1978 error = ugen_get_frame_size(f_tx, addr); 1979 } else { 1980 error = EINVAL; 1981 } 1982 break; 1983 1984 case USB_SET_RX_BUFFER_SIZE: 1985 if (fflags & FREAD) { 1986 error = ugen_set_buffer_size(f_rx, addr); 1987 } else { 1988 error = EINVAL; 1989 } 1990 break; 1991 1992 case USB_SET_TX_BUFFER_SIZE: 1993 if (fflags & FWRITE) { 1994 error = ugen_set_buffer_size(f_tx, addr); 1995 } else { 1996 error = EINVAL; 1997 } 1998 break; 1999 2000 case USB_GET_RX_BUFFER_SIZE: 2001 if (fflags & FREAD) { 2002 error = ugen_get_buffer_size(f_rx, addr); 2003 } else { 2004 error = EINVAL; 2005 } 2006 break; 2007 2008 case USB_GET_TX_BUFFER_SIZE: 2009 if (fflags & FWRITE) { 2010 error = ugen_get_buffer_size(f_tx, addr); 2011 } else { 2012 error = EINVAL; 2013 } 2014 break; 2015 2016 case USB_GET_RX_INTERFACE_DESC: 2017 if (fflags & FREAD) { 2018 error = ugen_get_iface_desc(f_rx, addr); 2019 } else { 2020 error = EINVAL; 2021 } 2022 break; 2023 2024 case USB_GET_TX_INTERFACE_DESC: 2025 if (fflags & FWRITE) { 2026 error = ugen_get_iface_desc(f_tx, addr); 2027 } else { 2028 error = EINVAL; 2029 } 2030 break; 2031 2032 case USB_GET_RX_ENDPOINT_DESC: 2033 if (fflags & FREAD) { 2034 error = ugen_get_endpoint_desc(f_rx, addr); 2035 } else { 2036 error = EINVAL; 2037 } 2038 break; 2039 2040 case USB_GET_TX_ENDPOINT_DESC: 2041 if (fflags & FWRITE) { 2042 error = ugen_get_endpoint_desc(f_tx, addr); 2043 } else { 2044 error = EINVAL; 2045 } 2046 break; 2047 2048 case USB_SET_RX_STALL_FLAG: 2049 if ((fflags & FREAD) && (*(int *)addr)) { 2050 f_rx->flag_stall = 1; 2051 } 2052 break; 2053 2054 case USB_SET_TX_STALL_FLAG: 2055 if ((fflags & FWRITE) && (*(int *)addr)) { 2056 f_tx->flag_stall = 1; 2057 } 2058 break; 2059 2060 default: 2061 error = ENOIOCTL; 2062 break; 2063 } 2064 return (error); 2065 } 2066 2067 static int 2068 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2069 { 2070 union { 2071 struct usb_interface_descriptor *idesc; 2072 struct usb_alt_interface *ai; 2073 struct usb_device_descriptor *ddesc; 2074 struct usb_config_descriptor *cdesc; 2075 struct usb_device_stats *stat; 2076 struct usb_fs_init *pinit; 2077 struct usb_fs_uninit *puninit; 2078 struct usb_device_port_path *dpp; 2079 uint32_t *ptime; 2080 void *addr; 2081 int *pint; 2082 } u; 2083 struct usb_device_descriptor *dtemp; 2084 struct usb_config_descriptor *ctemp; 2085 struct usb_interface *iface; 2086 int error = 0; 2087 uint8_t n; 2088 2089 u.addr = addr; 2090 2091 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2092 2093 switch (cmd) { 2094 case USB_DISCOVER: 2095 usb_needs_explore_all(); 2096 break; 2097 2098 case USB_SETDEBUG: 2099 if (!(fflags & FWRITE)) { 2100 error = EPERM; 2101 break; 2102 } 2103 usb_debug = *(int *)addr; 2104 break; 2105 2106 case USB_GET_CONFIG: 2107 *(int *)addr = f->udev->curr_config_index; 2108 break; 2109 2110 case USB_SET_CONFIG: 2111 if (!(fflags & FWRITE)) { 2112 error = EPERM; 2113 break; 2114 } 2115 error = ugen_set_config(f, *(int *)addr); 2116 break; 2117 2118 case USB_GET_ALTINTERFACE: 2119 iface = usbd_get_iface(f->udev, 2120 u.ai->uai_interface_index); 2121 if (iface && iface->idesc) { 2122 u.ai->uai_alt_index = iface->alt_index; 2123 } else { 2124 error = EINVAL; 2125 } 2126 break; 2127 2128 case USB_SET_ALTINTERFACE: 2129 if (!(fflags & FWRITE)) { 2130 error = EPERM; 2131 break; 2132 } 2133 error = ugen_set_interface(f, 2134 u.ai->uai_interface_index, u.ai->uai_alt_index); 2135 break; 2136 2137 case USB_GET_DEVICE_DESC: 2138 dtemp = usbd_get_device_descriptor(f->udev); 2139 if (!dtemp) { 2140 error = EIO; 2141 break; 2142 } 2143 *u.ddesc = *dtemp; 2144 break; 2145 2146 case USB_GET_CONFIG_DESC: 2147 ctemp = usbd_get_config_descriptor(f->udev); 2148 if (!ctemp) { 2149 error = EIO; 2150 break; 2151 } 2152 *u.cdesc = *ctemp; 2153 break; 2154 2155 case USB_GET_FULL_DESC: 2156 error = ugen_get_cdesc(f, addr); 2157 break; 2158 2159 case USB_GET_STRING_DESC: 2160 error = ugen_get_sdesc(f, addr); 2161 break; 2162 2163 case USB_GET_IFACE_DRIVER: 2164 error = ugen_get_iface_driver(f, addr); 2165 break; 2166 2167 case USB_REQUEST: 2168 case USB_DO_REQUEST: 2169 if (!(fflags & FWRITE)) { 2170 error = EPERM; 2171 break; 2172 } 2173 error = ugen_do_request(f, addr); 2174 break; 2175 2176 case USB_DEVICEINFO: 2177 case USB_GET_DEVICEINFO: 2178 error = usb_gen_fill_deviceinfo(f, addr); 2179 break; 2180 2181 case USB_DEVICESTATS: 2182 for (n = 0; n != 4; n++) { 2183 2184 u.stat->uds_requests_fail[n] = 2185 f->udev->bus->stats_err.uds_requests[n]; 2186 2187 u.stat->uds_requests_ok[n] = 2188 f->udev->bus->stats_ok.uds_requests[n]; 2189 } 2190 break; 2191 2192 case USB_DEVICEENUMERATE: 2193 error = ugen_re_enumerate(f); 2194 break; 2195 2196 case USB_GET_PLUGTIME: 2197 *u.ptime = f->udev->plugtime; 2198 break; 2199 2200 case USB_CLAIM_INTERFACE: 2201 case USB_RELEASE_INTERFACE: 2202 /* TODO */ 2203 break; 2204 2205 case USB_IFACE_DRIVER_ACTIVE: 2206 2207 n = *u.pint & 0xFF; 2208 2209 iface = usbd_get_iface(f->udev, n); 2210 2211 if (iface && iface->subdev) 2212 error = 0; 2213 else 2214 error = ENXIO; 2215 break; 2216 2217 case USB_IFACE_DRIVER_DETACH: 2218 2219 error = priv_check(curthread, PRIV_DRIVER); 2220 2221 if (error) 2222 break; 2223 2224 n = *u.pint & 0xFF; 2225 2226 if (n == USB_IFACE_INDEX_ANY) { 2227 error = EINVAL; 2228 break; 2229 } 2230 2231 /* 2232 * Detach the currently attached driver. 2233 */ 2234 usb_detach_device(f->udev, n, 0); 2235 2236 /* 2237 * Set parent to self, this should keep attach away 2238 * until the next set configuration event. 2239 */ 2240 usbd_set_parent_iface(f->udev, n, n); 2241 break; 2242 2243 case USB_SET_POWER_MODE: 2244 error = ugen_set_power_mode(f, *u.pint); 2245 break; 2246 2247 case USB_GET_POWER_MODE: 2248 *u.pint = ugen_get_power_mode(f); 2249 break; 2250 2251 case USB_GET_DEV_PORT_PATH: 2252 error = ugen_get_port_path(f, u.dpp); 2253 break; 2254 2255 case USB_GET_POWER_USAGE: 2256 *u.pint = ugen_get_power_usage(f); 2257 break; 2258 2259 case USB_SET_PORT_ENABLE: 2260 error = ugen_do_port_feature(f, 2261 *u.pint, 1, UHF_PORT_ENABLE); 2262 break; 2263 2264 case USB_SET_PORT_DISABLE: 2265 error = ugen_do_port_feature(f, 2266 *u.pint, 0, UHF_PORT_ENABLE); 2267 break; 2268 2269 case USB_FS_INIT: 2270 /* verify input parameters */ 2271 if (u.pinit->pEndpoints == NULL) { 2272 error = EINVAL; 2273 break; 2274 } 2275 if (u.pinit->ep_index_max > 127) { 2276 error = EINVAL; 2277 break; 2278 } 2279 if (u.pinit->ep_index_max == 0) { 2280 error = EINVAL; 2281 break; 2282 } 2283 if (f->fs_xfer != NULL) { 2284 error = EBUSY; 2285 break; 2286 } 2287 if (f->dev_ep_index != 0) { 2288 error = EINVAL; 2289 break; 2290 } 2291 if (ugen_fifo_in_use(f, fflags)) { 2292 error = EBUSY; 2293 break; 2294 } 2295 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2296 if (error) { 2297 break; 2298 } 2299 f->fs_xfer = kmalloc(sizeof(f->fs_xfer[0]) * 2300 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2301 if (f->fs_xfer == NULL) { 2302 usb_fifo_free_buffer(f); 2303 error = ENOMEM; 2304 break; 2305 } 2306 f->fs_ep_max = u.pinit->ep_index_max; 2307 f->fs_ep_ptr = u.pinit->pEndpoints; 2308 break; 2309 2310 case USB_FS_UNINIT: 2311 if (u.puninit->dummy != 0) { 2312 error = EINVAL; 2313 break; 2314 } 2315 error = ugen_fs_uninit(f); 2316 break; 2317 2318 default: 2319 lockmgr(f->priv_lock, LK_EXCLUSIVE); 2320 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2321 lockmgr(f->priv_lock, LK_RELEASE); 2322 break; 2323 } 2324 DPRINTFN(6, "error=%d\n", error); 2325 return (error); 2326 } 2327 2328 static void 2329 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2330 { 2331 ; /* workaround for a bug in "indent" */ 2332 2333 DPRINTF("st=%u alen=%u aframes=%u\n", 2334 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2335 2336 switch (USB_GET_STATE(xfer)) { 2337 case USB_ST_SETUP: 2338 usbd_transfer_submit(xfer); 2339 break; 2340 default: 2341 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2342 break; 2343 } 2344 } 2345 #endif /* USB_HAVE_UGEN */ 2346