Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/usb_generic.c
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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/stddef.h> 29 #include <sys/param.h> 30 #include <sys/queue.h> 31 #include <sys/types.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/module.h> 36 #include <sys/lock.h> 37 #include <sys/mutex.h> 38 #include <sys/condvar.h> 39 #include <sys/sysctl.h> 40 #include <sys/sx.h> 41 #include <sys/unistd.h> 42 #include <sys/callout.h> 43 #include <sys/malloc.h> 44 #include <sys/priv.h> 45 #include <sys/conf.h> 46 #include <sys/fcntl.h> 47 48 #include <dev/usb/usb.h> 49 #include <dev/usb/usb_ioctl.h> 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdi_util.h> 52 53 #define USB_DEBUG_VAR ugen_debug 54 55 #include <dev/usb/usb_core.h> 56 #include <dev/usb/usb_dev.h> 57 #include <dev/usb/usb_mbuf.h> 58 #include <dev/usb/usb_process.h> 59 #include <dev/usb/usb_device.h> 60 #include <dev/usb/usb_debug.h> 61 #include <dev/usb/usb_request.h> 62 #include <dev/usb/usb_busdma.h> 63 #include <dev/usb/usb_util.h> 64 #include <dev/usb/usb_hub.h> 65 #include <dev/usb/usb_generic.h> 66 #include <dev/usb/usb_transfer.h> 67 68 #include <dev/usb/usb_controller.h> 69 #include <dev/usb/usb_bus.h> 70 71 #if USB_HAVE_UGEN 72 73 /* defines */ 74 75 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 76 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 77 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 78 79 /* function prototypes */ 80 81 static usb_callback_t ugen_read_clear_stall_callback; 82 static usb_callback_t ugen_write_clear_stall_callback; 83 static usb_callback_t ugen_ctrl_read_callback; 84 static usb_callback_t ugen_ctrl_write_callback; 85 static usb_callback_t ugen_isoc_read_callback; 86 static usb_callback_t ugen_isoc_write_callback; 87 static usb_callback_t ugen_ctrl_fs_callback; 88 89 static usb_fifo_open_t ugen_open; 90 static usb_fifo_close_t ugen_close; 91 static usb_fifo_ioctl_t ugen_ioctl; 92 static usb_fifo_ioctl_t ugen_ioctl_post; 93 static usb_fifo_cmd_t ugen_start_read; 94 static usb_fifo_cmd_t ugen_start_write; 95 static usb_fifo_cmd_t ugen_stop_io; 96 97 static int ugen_transfer_setup(struct usb_fifo *, 98 const struct usb_config *, uint8_t); 99 static int ugen_open_pipe_write(struct usb_fifo *); 100 static int ugen_open_pipe_read(struct usb_fifo *); 101 static int ugen_set_config(struct usb_fifo *, uint8_t); 102 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t); 103 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *); 104 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *); 105 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd); 106 static int usb_gen_fill_deviceinfo(struct usb_fifo *, 107 struct usb_device_info *); 108 static int ugen_re_enumerate(struct usb_fifo *); 109 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int); 110 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *); 111 static int ugen_fs_uninit(struct usb_fifo *f); 112 113 /* structures */ 114 115 struct usb_fifo_methods usb_ugen_methods = { 116 .f_open = &ugen_open, 117 .f_close = &ugen_close, 118 .f_ioctl = &ugen_ioctl, 119 .f_ioctl_post = &ugen_ioctl_post, 120 .f_start_read = &ugen_start_read, 121 .f_stop_read = &ugen_stop_io, 122 .f_start_write = &ugen_start_write, 123 .f_stop_write = &ugen_stop_io, 124 }; 125 126 #ifdef USB_DEBUG 127 static int ugen_debug = 0; 128 129 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 130 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN, &ugen_debug, 131 0, "Debug level"); 132 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug); 133 #endif 134 135 136 /* prototypes */ 137 138 static int 139 ugen_transfer_setup(struct usb_fifo *f, 140 const struct usb_config *setup, uint8_t n_setup) 141 { 142 struct usb_endpoint *ep = usb_fifo_softc(f); 143 struct usb_device *udev = f->udev; 144 uint8_t iface_index = ep->iface_index; 145 int error; 146 147 mtx_unlock(f->priv_mtx); 148 149 /* 150 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper, 151 * exiting the mutex and checking things 152 */ 153 error = usbd_transfer_setup(udev, &iface_index, f->xfer, 154 setup, n_setup, f, f->priv_mtx); 155 if (error == 0) { 156 157 if (f->xfer[0]->nframes == 1) { 158 error = usb_fifo_alloc_buffer(f, 159 f->xfer[0]->max_data_length, 2); 160 } else { 161 error = usb_fifo_alloc_buffer(f, 162 f->xfer[0]->max_frame_size, 163 2 * f->xfer[0]->nframes); 164 } 165 if (error) { 166 usbd_transfer_unsetup(f->xfer, n_setup); 167 } 168 } 169 mtx_lock(f->priv_mtx); 170 171 return (error); 172 } 173 174 static int 175 ugen_open(struct usb_fifo *f, int fflags) 176 { 177 struct usb_endpoint *ep = usb_fifo_softc(f); 178 struct usb_endpoint_descriptor *ed = ep->edesc; 179 uint8_t type; 180 181 DPRINTFN(6, "flag=0x%x\n", fflags); 182 183 mtx_lock(f->priv_mtx); 184 switch (usbd_get_speed(f->udev)) { 185 case USB_SPEED_LOW: 186 case USB_SPEED_FULL: 187 f->nframes = UGEN_HW_FRAMES; 188 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 189 break; 190 default: 191 f->nframes = UGEN_HW_FRAMES * 8; 192 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 193 break; 194 } 195 196 type = ed->bmAttributes & UE_XFERTYPE; 197 if (type == UE_INTERRUPT) { 198 f->bufsize = 0; /* use "wMaxPacketSize" */ 199 } 200 f->timeout = USB_NO_TIMEOUT; 201 f->flag_short = 0; 202 f->fifo_zlp = 0; 203 mtx_unlock(f->priv_mtx); 204 205 return (0); 206 } 207 208 static void 209 ugen_close(struct usb_fifo *f, int fflags) 210 { 211 DPRINTFN(6, "flag=0x%x\n", fflags); 212 213 /* cleanup */ 214 215 mtx_lock(f->priv_mtx); 216 usbd_transfer_stop(f->xfer[0]); 217 usbd_transfer_stop(f->xfer[1]); 218 mtx_unlock(f->priv_mtx); 219 220 usbd_transfer_unsetup(f->xfer, 2); 221 usb_fifo_free_buffer(f); 222 223 if (ugen_fs_uninit(f)) { 224 /* ignore any errors - we are closing */ 225 DPRINTFN(6, "no FIFOs\n"); 226 } 227 } 228 229 static int 230 ugen_open_pipe_write(struct usb_fifo *f) 231 { 232 struct usb_config usb_config[2]; 233 struct usb_endpoint *ep = usb_fifo_softc(f); 234 struct usb_endpoint_descriptor *ed = ep->edesc; 235 236 mtx_assert(f->priv_mtx, MA_OWNED); 237 238 if (f->xfer[0] || f->xfer[1]) { 239 /* transfers are already opened */ 240 return (0); 241 } 242 memset(usb_config, 0, sizeof(usb_config)); 243 244 usb_config[1].type = UE_CONTROL; 245 usb_config[1].endpoint = 0; 246 usb_config[1].direction = UE_DIR_ANY; 247 usb_config[1].timeout = 1000; /* 1 second */ 248 usb_config[1].interval = 50;/* 50 milliseconds */ 249 usb_config[1].bufsize = sizeof(struct usb_device_request); 250 usb_config[1].callback = &ugen_write_clear_stall_callback; 251 usb_config[1].usb_mode = USB_MODE_HOST; 252 253 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 254 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 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 mtx_assert(f->priv_mtx, MA_OWNED); 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].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 (usbd_req_get_config_desc_full(udev, 685 NULL, &cdesc, M_USBDEV, 686 ugd->ugd_config_index)) { 687 return (ENXIO); 688 } 689 free_data = 1; 690 } 691 692 len = UGETW(cdesc->wTotalLength); 693 if (len > ugd->ugd_maxlen) { 694 len = ugd->ugd_maxlen; 695 } 696 DPRINTFN(6, "len=%u\n", len); 697 698 ugd->ugd_actlen = len; 699 ugd->ugd_offset = 0; 700 701 error = copyout(cdesc, ugd->ugd_data, len); 702 703 if (free_data) { 704 free(cdesc, M_USBDEV); 705 } 706 return (error); 707 } 708 709 static int 710 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 711 { 712 void *ptr; 713 uint16_t size; 714 int error; 715 uint8_t do_unlock; 716 717 /* Protect scratch area */ 718 do_unlock = usbd_ctrl_lock(f->udev); 719 720 ptr = f->udev->scratch.data; 721 size = sizeof(f->udev->scratch.data); 722 723 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 724 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 725 error = EINVAL; 726 } else { 727 728 if (size > ((uint8_t *)ptr)[0]) { 729 size = ((uint8_t *)ptr)[0]; 730 } 731 if (size > ugd->ugd_maxlen) { 732 size = ugd->ugd_maxlen; 733 } 734 ugd->ugd_actlen = size; 735 ugd->ugd_offset = 0; 736 737 error = copyout(ptr, ugd->ugd_data, size); 738 } 739 if (do_unlock) 740 usbd_ctrl_unlock(f->udev); 741 742 return (error); 743 } 744 745 /*------------------------------------------------------------------------* 746 * ugen_get_iface_driver 747 * 748 * This function generates an USB interface description for userland. 749 * 750 * Returns: 751 * 0: Success 752 * Else: Failure 753 *------------------------------------------------------------------------*/ 754 static int 755 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 756 { 757 struct usb_device *udev = f->udev; 758 struct usb_interface *iface; 759 const char *ptr; 760 const char *desc; 761 unsigned int len; 762 unsigned int maxlen; 763 char buf[128]; 764 int error; 765 766 DPRINTFN(6, "\n"); 767 768 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) { 769 /* userland pointer should not be zero */ 770 return (EINVAL); 771 } 772 773 iface = usbd_get_iface(udev, ugd->ugd_iface_index); 774 if ((iface == NULL) || (iface->idesc == NULL)) { 775 /* invalid interface index */ 776 return (EINVAL); 777 } 778 779 /* read out device nameunit string, if any */ 780 if ((iface->subdev != NULL) && 781 device_is_attached(iface->subdev) && 782 (ptr = device_get_nameunit(iface->subdev)) && 783 (desc = device_get_desc(iface->subdev))) { 784 785 /* print description */ 786 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc); 787 788 /* range checks */ 789 maxlen = ugd->ugd_maxlen - 1; 790 len = strlen(buf); 791 if (len > maxlen) 792 len = maxlen; 793 794 /* update actual length, including terminating zero */ 795 ugd->ugd_actlen = len + 1; 796 797 /* copy out interface description */ 798 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen); 799 } else { 800 /* zero length string is default */ 801 error = copyout("", ugd->ugd_data, 1); 802 } 803 return (error); 804 } 805 806 /*------------------------------------------------------------------------* 807 * usb_gen_fill_deviceinfo 808 * 809 * This function dumps information about an USB device to the 810 * structure pointed to by the "di" argument. 811 * 812 * Returns: 813 * 0: Success 814 * Else: Failure 815 *------------------------------------------------------------------------*/ 816 static int 817 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di) 818 { 819 struct usb_device *udev; 820 struct usb_device *hub; 821 822 udev = f->udev; 823 824 bzero(di, sizeof(di[0])); 825 826 di->udi_bus = device_get_unit(udev->bus->bdev); 827 di->udi_addr = udev->address; 828 di->udi_index = udev->device_index; 829 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial)); 830 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor)); 831 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product)); 832 usb_printbcd(di->udi_release, sizeof(di->udi_release), 833 UGETW(udev->ddesc.bcdDevice)); 834 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 835 di->udi_productNo = UGETW(udev->ddesc.idProduct); 836 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 837 di->udi_class = udev->ddesc.bDeviceClass; 838 di->udi_subclass = udev->ddesc.bDeviceSubClass; 839 di->udi_protocol = udev->ddesc.bDeviceProtocol; 840 di->udi_config_no = udev->curr_config_no; 841 di->udi_config_index = udev->curr_config_index; 842 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 843 di->udi_speed = udev->speed; 844 di->udi_mode = udev->flags.usb_mode; 845 di->udi_power_mode = udev->power_mode; 846 di->udi_suspended = udev->flags.peer_suspended; 847 848 hub = udev->parent_hub; 849 if (hub) { 850 di->udi_hubaddr = hub->address; 851 di->udi_hubindex = hub->device_index; 852 di->udi_hubport = udev->port_no; 853 } 854 return (0); 855 } 856 857 /*------------------------------------------------------------------------* 858 * ugen_check_request 859 * 860 * Return values: 861 * 0: Access allowed 862 * Else: No access 863 *------------------------------------------------------------------------*/ 864 static int 865 ugen_check_request(struct usb_device *udev, struct usb_device_request *req) 866 { 867 struct usb_endpoint *ep; 868 int error; 869 870 /* 871 * Avoid requests that would damage the bus integrity: 872 */ 873 if (((req->bmRequestType == UT_WRITE_DEVICE) && 874 (req->bRequest == UR_SET_ADDRESS)) || 875 ((req->bmRequestType == UT_WRITE_DEVICE) && 876 (req->bRequest == UR_SET_CONFIG)) || 877 ((req->bmRequestType == UT_WRITE_INTERFACE) && 878 (req->bRequest == UR_SET_INTERFACE))) { 879 /* 880 * These requests can be useful for testing USB drivers. 881 */ 882 error = priv_check(curthread, PRIV_DRIVER); 883 if (error) { 884 return (error); 885 } 886 } 887 /* 888 * Special case - handle clearing of stall 889 */ 890 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 891 892 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]); 893 if (ep == NULL) { 894 return (EINVAL); 895 } 896 if ((req->bRequest == UR_CLEAR_FEATURE) && 897 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 898 usbd_clear_data_toggle(udev, ep); 899 } 900 } 901 /* TODO: add more checks to verify the interface index */ 902 903 return (0); 904 } 905 906 int 907 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur) 908 { 909 int error; 910 uint16_t len; 911 uint16_t actlen; 912 913 if (ugen_check_request(f->udev, &ur->ucr_request)) { 914 return (EPERM); 915 } 916 len = UGETW(ur->ucr_request.wLength); 917 918 /* check if "ucr_data" is valid */ 919 if (len != 0) { 920 if (ur->ucr_data == NULL) { 921 return (EFAULT); 922 } 923 } 924 /* do the USB request */ 925 error = usbd_do_request_flags 926 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 927 (ur->ucr_flags & USB_SHORT_XFER_OK) | 928 USB_USER_DATA_PTR, &actlen, 929 USB_DEFAULT_TIMEOUT); 930 931 ur->ucr_actlen = actlen; 932 933 if (error) { 934 error = EIO; 935 } 936 return (error); 937 } 938 939 /*------------------------------------------------------------------------ 940 * ugen_re_enumerate 941 *------------------------------------------------------------------------*/ 942 static int 943 ugen_re_enumerate(struct usb_fifo *f) 944 { 945 struct usb_device *udev = f->udev; 946 int error; 947 948 /* 949 * This request can be useful for testing USB drivers: 950 */ 951 error = priv_check(curthread, PRIV_DRIVER); 952 if (error) { 953 return (error); 954 } 955 if (udev->flags.usb_mode != USB_MODE_HOST) { 956 /* not possible in device side mode */ 957 DPRINTFN(6, "device mode\n"); 958 return (ENOTTY); 959 } 960 /* make sure all FIFO's are gone */ 961 /* else there can be a deadlock */ 962 if (ugen_fs_uninit(f)) { 963 /* ignore any errors */ 964 DPRINTFN(6, "no FIFOs\n"); 965 } 966 /* start re-enumeration of device */ 967 usbd_start_re_enumerate(udev); 968 return (0); 969 } 970 971 int 972 ugen_fs_uninit(struct usb_fifo *f) 973 { 974 if (f->fs_xfer == NULL) { 975 return (EINVAL); 976 } 977 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 978 free(f->fs_xfer, M_USB); 979 f->fs_xfer = NULL; 980 f->fs_ep_max = 0; 981 f->fs_ep_ptr = NULL; 982 f->flag_iscomplete = 0; 983 usb_fifo_free_buffer(f); 984 return (0); 985 } 986 987 static uint8_t 988 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex) 989 { 990 struct usb_mbuf *m; 991 992 USB_IF_DEQUEUE(&f->used_q, m); 993 994 if (m) { 995 *pindex = *((uint8_t *)(m->cur_data_ptr)); 996 997 USB_IF_ENQUEUE(&f->free_q, m); 998 999 return (0); /* success */ 1000 } else { 1001 1002 *pindex = 0; /* fix compiler warning */ 1003 1004 f->flag_iscomplete = 0; 1005 } 1006 return (1); /* failure */ 1007 } 1008 1009 static void 1010 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index) 1011 { 1012 struct usb_mbuf *m; 1013 1014 USB_IF_DEQUEUE(&f->free_q, m); 1015 1016 if (m == NULL) { 1017 /* can happen during close */ 1018 DPRINTF("out of buffers\n"); 1019 return; 1020 } 1021 USB_MBUF_RESET(m); 1022 1023 *((uint8_t *)(m->cur_data_ptr)) = index; 1024 1025 USB_IF_ENQUEUE(&f->used_q, m); 1026 1027 f->flag_iscomplete = 1; 1028 1029 usb_fifo_wakeup(f); 1030 } 1031 1032 static int 1033 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index) 1034 { 1035 struct usb_device_request *req; 1036 struct usb_xfer *xfer; 1037 struct usb_fs_endpoint fs_ep; 1038 void *uaddr; /* userland pointer */ 1039 void *kaddr; 1040 usb_frlength_t offset; 1041 usb_frlength_t rem; 1042 usb_frcount_t n; 1043 uint32_t length; 1044 int error; 1045 uint8_t isread; 1046 1047 if (ep_index >= f->fs_ep_max) { 1048 return (EINVAL); 1049 } 1050 xfer = f->fs_xfer[ep_index]; 1051 if (xfer == NULL) { 1052 return (EINVAL); 1053 } 1054 mtx_lock(f->priv_mtx); 1055 if (usbd_transfer_pending(xfer)) { 1056 mtx_unlock(f->priv_mtx); 1057 return (EBUSY); /* should not happen */ 1058 } 1059 mtx_unlock(f->priv_mtx); 1060 1061 error = copyin(f->fs_ep_ptr + 1062 ep_index, &fs_ep, sizeof(fs_ep)); 1063 if (error) { 1064 return (error); 1065 } 1066 /* security checks */ 1067 1068 if (fs_ep.nFrames > xfer->max_frame_count) { 1069 xfer->error = USB_ERR_INVAL; 1070 goto complete; 1071 } 1072 if (fs_ep.nFrames == 0) { 1073 xfer->error = USB_ERR_INVAL; 1074 goto complete; 1075 } 1076 error = copyin(fs_ep.ppBuffer, 1077 &uaddr, sizeof(uaddr)); 1078 if (error) { 1079 return (error); 1080 } 1081 /* reset first frame */ 1082 usbd_xfer_set_frame_offset(xfer, 0, 0); 1083 1084 if (xfer->flags_int.control_xfr) { 1085 1086 req = xfer->frbuffers[0].buffer; 1087 1088 error = copyin(fs_ep.pLength, 1089 &length, sizeof(length)); 1090 if (error) { 1091 return (error); 1092 } 1093 if (length != sizeof(*req)) { 1094 xfer->error = USB_ERR_INVAL; 1095 goto complete; 1096 } 1097 if (length != 0) { 1098 error = copyin(uaddr, req, length); 1099 if (error) { 1100 return (error); 1101 } 1102 } 1103 if (ugen_check_request(f->udev, req)) { 1104 xfer->error = USB_ERR_INVAL; 1105 goto complete; 1106 } 1107 usbd_xfer_set_frame_len(xfer, 0, length); 1108 1109 /* Host mode only ! */ 1110 if ((req->bmRequestType & 1111 (UT_READ | UT_WRITE)) == UT_READ) { 1112 isread = 1; 1113 } else { 1114 isread = 0; 1115 } 1116 n = 1; 1117 offset = sizeof(*req); 1118 1119 } else { 1120 /* Device and Host mode */ 1121 if (USB_GET_DATA_ISREAD(xfer)) { 1122 isread = 1; 1123 } else { 1124 isread = 0; 1125 } 1126 n = 0; 1127 offset = 0; 1128 } 1129 1130 rem = usbd_xfer_max_len(xfer); 1131 xfer->nframes = fs_ep.nFrames; 1132 xfer->timeout = fs_ep.timeout; 1133 if (xfer->timeout > 65535) { 1134 xfer->timeout = 65535; 1135 } 1136 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1137 xfer->flags.short_xfer_ok = 1; 1138 else 1139 xfer->flags.short_xfer_ok = 0; 1140 1141 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1142 xfer->flags.short_frames_ok = 1; 1143 else 1144 xfer->flags.short_frames_ok = 0; 1145 1146 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1147 xfer->flags.force_short_xfer = 1; 1148 else 1149 xfer->flags.force_short_xfer = 0; 1150 1151 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1152 usbd_xfer_set_stall(xfer); 1153 else 1154 xfer->flags.stall_pipe = 0; 1155 1156 for (; n != xfer->nframes; n++) { 1157 1158 error = copyin(fs_ep.pLength + n, 1159 &length, sizeof(length)); 1160 if (error) { 1161 break; 1162 } 1163 usbd_xfer_set_frame_len(xfer, n, length); 1164 1165 if (length > rem) { 1166 xfer->error = USB_ERR_INVAL; 1167 goto complete; 1168 } 1169 rem -= length; 1170 1171 if (!isread) { 1172 1173 /* we need to know the source buffer */ 1174 error = copyin(fs_ep.ppBuffer + n, 1175 &uaddr, sizeof(uaddr)); 1176 if (error) { 1177 break; 1178 } 1179 if (xfer->flags_int.isochronous_xfr) { 1180 /* get kernel buffer address */ 1181 kaddr = xfer->frbuffers[0].buffer; 1182 kaddr = USB_ADD_BYTES(kaddr, offset); 1183 } else { 1184 /* set current frame offset */ 1185 usbd_xfer_set_frame_offset(xfer, offset, n); 1186 1187 /* get kernel buffer address */ 1188 kaddr = xfer->frbuffers[n].buffer; 1189 } 1190 1191 /* move data */ 1192 error = copyin(uaddr, kaddr, length); 1193 if (error) { 1194 break; 1195 } 1196 } 1197 offset += length; 1198 } 1199 return (error); 1200 1201 complete: 1202 mtx_lock(f->priv_mtx); 1203 ugen_fs_set_complete(f, ep_index); 1204 mtx_unlock(f->priv_mtx); 1205 return (0); 1206 } 1207 1208 static int 1209 ugen_fs_copy_out_cancelled(struct usb_fs_endpoint *fs_ep_uptr) 1210 { 1211 struct usb_fs_endpoint fs_ep; 1212 int error; 1213 1214 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1215 if (error) 1216 return (error); 1217 1218 fs_ep.status = USB_ERR_CANCELLED; 1219 fs_ep.aFrames = 0; 1220 fs_ep.isoc_time_complete = 0; 1221 1222 /* update "aFrames" */ 1223 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1224 sizeof(fs_ep.aFrames)); 1225 if (error) 1226 goto done; 1227 1228 /* update "isoc_time_complete" */ 1229 error = copyout(&fs_ep.isoc_time_complete, 1230 &fs_ep_uptr->isoc_time_complete, 1231 sizeof(fs_ep.isoc_time_complete)); 1232 if (error) 1233 goto done; 1234 1235 /* update "status" */ 1236 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1237 sizeof(fs_ep.status)); 1238 done: 1239 return (error); 1240 } 1241 1242 static int 1243 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index) 1244 { 1245 struct usb_device_request *req; 1246 struct usb_xfer *xfer; 1247 struct usb_fs_endpoint fs_ep; 1248 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1249 void *uaddr; /* userland ptr */ 1250 void *kaddr; 1251 usb_frlength_t offset; 1252 usb_frlength_t rem; 1253 usb_frcount_t n; 1254 uint32_t length; 1255 uint32_t temp; 1256 int error; 1257 uint8_t isread; 1258 1259 if (ep_index >= f->fs_ep_max) 1260 return (EINVAL); 1261 1262 xfer = f->fs_xfer[ep_index]; 1263 if (xfer == NULL) 1264 return (EINVAL); 1265 1266 mtx_lock(f->priv_mtx); 1267 if (!xfer->flags_int.transferring && 1268 !xfer->flags_int.started) { 1269 mtx_unlock(f->priv_mtx); 1270 DPRINTF("Returning fake cancel event\n"); 1271 return (ugen_fs_copy_out_cancelled(f->fs_ep_ptr + ep_index)); 1272 } else if (usbd_transfer_pending(xfer)) { 1273 mtx_unlock(f->priv_mtx); 1274 return (EBUSY); /* should not happen */ 1275 } 1276 mtx_unlock(f->priv_mtx); 1277 1278 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1279 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1280 if (error) { 1281 return (error); 1282 } 1283 fs_ep.status = xfer->error; 1284 fs_ep.aFrames = xfer->aframes; 1285 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1286 if (xfer->error) { 1287 goto complete; 1288 } 1289 if (xfer->flags_int.control_xfr) { 1290 req = xfer->frbuffers[0].buffer; 1291 1292 /* Host mode only ! */ 1293 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1294 isread = 1; 1295 } else { 1296 isread = 0; 1297 } 1298 if (xfer->nframes == 0) 1299 n = 0; /* should never happen */ 1300 else 1301 n = 1; 1302 } else { 1303 /* Device and Host mode */ 1304 if (USB_GET_DATA_ISREAD(xfer)) { 1305 isread = 1; 1306 } else { 1307 isread = 0; 1308 } 1309 n = 0; 1310 } 1311 1312 /* Update lengths and copy out data */ 1313 1314 rem = usbd_xfer_max_len(xfer); 1315 offset = 0; 1316 1317 for (; n != xfer->nframes; n++) { 1318 1319 /* get initial length into "temp" */ 1320 error = copyin(fs_ep.pLength + n, 1321 &temp, sizeof(temp)); 1322 if (error) { 1323 return (error); 1324 } 1325 if (temp > rem) { 1326 /* the userland length has been corrupted */ 1327 DPRINTF("corrupt userland length " 1328 "%u > %u\n", temp, rem); 1329 fs_ep.status = USB_ERR_INVAL; 1330 goto complete; 1331 } 1332 rem -= temp; 1333 1334 /* get actual transfer length */ 1335 length = xfer->frlengths[n]; 1336 if (length > temp) { 1337 /* data overflow */ 1338 fs_ep.status = USB_ERR_INVAL; 1339 DPRINTF("data overflow %u > %u\n", 1340 length, temp); 1341 goto complete; 1342 } 1343 if (isread) { 1344 1345 /* we need to know the destination buffer */ 1346 error = copyin(fs_ep.ppBuffer + n, 1347 &uaddr, sizeof(uaddr)); 1348 if (error) { 1349 return (error); 1350 } 1351 if (xfer->flags_int.isochronous_xfr) { 1352 /* only one frame buffer */ 1353 kaddr = USB_ADD_BYTES( 1354 xfer->frbuffers[0].buffer, offset); 1355 } else { 1356 /* multiple frame buffers */ 1357 kaddr = xfer->frbuffers[n].buffer; 1358 } 1359 1360 /* move data */ 1361 error = copyout(kaddr, uaddr, length); 1362 if (error) { 1363 return (error); 1364 } 1365 } 1366 /* 1367 * Update offset according to initial length, which is 1368 * needed by isochronous transfers! 1369 */ 1370 offset += temp; 1371 1372 /* update length */ 1373 error = copyout(&length, 1374 fs_ep.pLength + n, sizeof(length)); 1375 if (error) { 1376 return (error); 1377 } 1378 } 1379 1380 complete: 1381 /* update "aFrames" */ 1382 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1383 sizeof(fs_ep.aFrames)); 1384 if (error) 1385 goto done; 1386 1387 /* update "isoc_time_complete" */ 1388 error = copyout(&fs_ep.isoc_time_complete, 1389 &fs_ep_uptr->isoc_time_complete, 1390 sizeof(fs_ep.isoc_time_complete)); 1391 if (error) 1392 goto done; 1393 1394 /* update "status" */ 1395 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1396 sizeof(fs_ep.status)); 1397 done: 1398 return (error); 1399 } 1400 1401 static uint8_t 1402 ugen_fifo_in_use(struct usb_fifo *f, int fflags) 1403 { 1404 struct usb_fifo *f_rx; 1405 struct usb_fifo *f_tx; 1406 1407 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1408 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1409 1410 if ((fflags & FREAD) && f_rx && 1411 (f_rx->xfer[0] || f_rx->xfer[1])) { 1412 return (1); /* RX FIFO in use */ 1413 } 1414 if ((fflags & FWRITE) && f_tx && 1415 (f_tx->xfer[0] || f_tx->xfer[1])) { 1416 return (1); /* TX FIFO in use */ 1417 } 1418 return (0); /* not in use */ 1419 } 1420 1421 static int 1422 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1423 { 1424 struct usb_config usb_config[1]; 1425 struct usb_device_request req; 1426 union { 1427 struct usb_fs_complete *pcomp; 1428 struct usb_fs_start *pstart; 1429 struct usb_fs_stop *pstop; 1430 struct usb_fs_open *popen; 1431 struct usb_fs_close *pclose; 1432 struct usb_fs_clear_stall_sync *pstall; 1433 void *addr; 1434 } u; 1435 struct usb_endpoint *ep; 1436 struct usb_endpoint_descriptor *ed; 1437 struct usb_xfer *xfer; 1438 int error = 0; 1439 uint8_t iface_index; 1440 uint8_t isread; 1441 uint8_t ep_index; 1442 uint8_t pre_scale; 1443 1444 u.addr = addr; 1445 1446 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1447 1448 switch (cmd) { 1449 case USB_FS_COMPLETE: 1450 mtx_lock(f->priv_mtx); 1451 error = ugen_fs_get_complete(f, &ep_index); 1452 mtx_unlock(f->priv_mtx); 1453 1454 if (error) { 1455 error = EBUSY; 1456 break; 1457 } 1458 u.pcomp->ep_index = ep_index; 1459 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1460 break; 1461 1462 case USB_FS_START: 1463 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1464 if (error) 1465 break; 1466 mtx_lock(f->priv_mtx); 1467 xfer = f->fs_xfer[u.pstart->ep_index]; 1468 usbd_transfer_start(xfer); 1469 mtx_unlock(f->priv_mtx); 1470 break; 1471 1472 case USB_FS_STOP: 1473 if (u.pstop->ep_index >= f->fs_ep_max) { 1474 error = EINVAL; 1475 break; 1476 } 1477 mtx_lock(f->priv_mtx); 1478 xfer = f->fs_xfer[u.pstart->ep_index]; 1479 if (usbd_transfer_pending(xfer)) { 1480 usbd_transfer_stop(xfer); 1481 1482 /* 1483 * Check if the USB transfer was stopped 1484 * before it was even started and fake a 1485 * cancel event. 1486 */ 1487 if (!xfer->flags_int.transferring && 1488 !xfer->flags_int.started) { 1489 DPRINTF("Issuing fake completion event\n"); 1490 ugen_fs_set_complete(xfer->priv_sc, 1491 USB_P2U(xfer->priv_fifo)); 1492 } 1493 } 1494 mtx_unlock(f->priv_mtx); 1495 break; 1496 1497 case USB_FS_OPEN: 1498 if (u.popen->ep_index >= f->fs_ep_max) { 1499 error = EINVAL; 1500 break; 1501 } 1502 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1503 error = EBUSY; 1504 break; 1505 } 1506 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1507 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1508 } 1509 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) { 1510 pre_scale = 1; 1511 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE; 1512 } else { 1513 pre_scale = 0; 1514 } 1515 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1516 u.popen->max_frames = USB_FS_MAX_FRAMES; 1517 break; 1518 } 1519 if (u.popen->max_frames == 0) { 1520 error = EINVAL; 1521 break; 1522 } 1523 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no); 1524 if (ep == NULL) { 1525 error = EINVAL; 1526 break; 1527 } 1528 ed = ep->edesc; 1529 if (ed == NULL) { 1530 error = ENXIO; 1531 break; 1532 } 1533 iface_index = ep->iface_index; 1534 1535 memset(usb_config, 0, sizeof(usb_config)); 1536 1537 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1538 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1539 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1540 usb_config[0].interval = USB_DEFAULT_INTERVAL; 1541 usb_config[0].flags.proxy_buffer = 1; 1542 if (pre_scale != 0) 1543 usb_config[0].flags.pre_scale_frames = 1; 1544 usb_config[0].callback = &ugen_ctrl_fs_callback; 1545 usb_config[0].timeout = 0; /* no timeout */ 1546 usb_config[0].frames = u.popen->max_frames; 1547 usb_config[0].bufsize = u.popen->max_bufsize; 1548 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */ 1549 1550 if (usb_config[0].type == UE_CONTROL) { 1551 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1552 error = EINVAL; 1553 break; 1554 } 1555 } else { 1556 1557 isread = ((usb_config[0].endpoint & 1558 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1559 1560 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1561 isread = !isread; 1562 } 1563 /* check permissions */ 1564 if (isread) { 1565 if (!(fflags & FREAD)) { 1566 error = EPERM; 1567 break; 1568 } 1569 } else { 1570 if (!(fflags & FWRITE)) { 1571 error = EPERM; 1572 break; 1573 } 1574 } 1575 } 1576 error = usbd_transfer_setup(f->udev, &iface_index, 1577 f->fs_xfer + u.popen->ep_index, usb_config, 1, 1578 f, f->priv_mtx); 1579 if (error == 0) { 1580 /* update maximums */ 1581 u.popen->max_packet_length = 1582 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1583 u.popen->max_bufsize = 1584 f->fs_xfer[u.popen->ep_index]->max_data_length; 1585 /* update number of frames */ 1586 u.popen->max_frames = 1587 f->fs_xfer[u.popen->ep_index]->nframes; 1588 /* store index of endpoint */ 1589 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1590 ((uint8_t *)0) + u.popen->ep_index; 1591 } else { 1592 error = ENOMEM; 1593 } 1594 break; 1595 1596 case USB_FS_CLOSE: 1597 if (u.pclose->ep_index >= f->fs_ep_max) { 1598 error = EINVAL; 1599 break; 1600 } 1601 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1602 error = EINVAL; 1603 break; 1604 } 1605 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1606 break; 1607 1608 case USB_FS_CLEAR_STALL_SYNC: 1609 if (u.pstall->ep_index >= f->fs_ep_max) { 1610 error = EINVAL; 1611 break; 1612 } 1613 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1614 error = EINVAL; 1615 break; 1616 } 1617 if (f->udev->flags.usb_mode != USB_MODE_HOST) { 1618 error = EINVAL; 1619 break; 1620 } 1621 mtx_lock(f->priv_mtx); 1622 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1623 mtx_unlock(f->priv_mtx); 1624 1625 if (error) { 1626 return (EBUSY); 1627 } 1628 ep = f->fs_xfer[u.pstall->ep_index]->endpoint; 1629 1630 /* setup a clear-stall packet */ 1631 req.bmRequestType = UT_WRITE_ENDPOINT; 1632 req.bRequest = UR_CLEAR_FEATURE; 1633 USETW(req.wValue, UF_ENDPOINT_HALT); 1634 req.wIndex[0] = ep->edesc->bEndpointAddress; 1635 req.wIndex[1] = 0; 1636 USETW(req.wLength, 0); 1637 1638 error = usbd_do_request(f->udev, NULL, &req, NULL); 1639 if (error == 0) { 1640 usbd_clear_data_toggle(f->udev, ep); 1641 } else { 1642 error = ENXIO; 1643 } 1644 break; 1645 1646 default: 1647 error = ENOIOCTL; 1648 break; 1649 } 1650 1651 DPRINTFN(6, "error=%d\n", error); 1652 1653 return (error); 1654 } 1655 1656 static int 1657 ugen_set_short_xfer(struct usb_fifo *f, void *addr) 1658 { 1659 uint8_t t; 1660 1661 if (*(int *)addr) 1662 t = 1; 1663 else 1664 t = 0; 1665 1666 if (f->flag_short == t) { 1667 /* same value like before - accept */ 1668 return (0); 1669 } 1670 if (f->xfer[0] || f->xfer[1]) { 1671 /* cannot change this during transfer */ 1672 return (EBUSY); 1673 } 1674 f->flag_short = t; 1675 return (0); 1676 } 1677 1678 static int 1679 ugen_set_timeout(struct usb_fifo *f, void *addr) 1680 { 1681 f->timeout = *(int *)addr; 1682 if (f->timeout > 65535) { 1683 /* limit user input */ 1684 f->timeout = 65535; 1685 } 1686 return (0); 1687 } 1688 1689 static int 1690 ugen_get_frame_size(struct usb_fifo *f, void *addr) 1691 { 1692 if (f->xfer[0]) { 1693 *(int *)addr = f->xfer[0]->max_frame_size; 1694 } else { 1695 return (EINVAL); 1696 } 1697 return (0); 1698 } 1699 1700 static int 1701 ugen_set_buffer_size(struct usb_fifo *f, void *addr) 1702 { 1703 usb_frlength_t t; 1704 1705 if (*(int *)addr < 0) 1706 t = 0; /* use "wMaxPacketSize" */ 1707 else if (*(int *)addr < (256 * 1024)) 1708 t = *(int *)addr; 1709 else 1710 t = 256 * 1024; 1711 1712 if (f->bufsize == t) { 1713 /* same value like before - accept */ 1714 return (0); 1715 } 1716 if (f->xfer[0] || f->xfer[1]) { 1717 /* cannot change this during transfer */ 1718 return (EBUSY); 1719 } 1720 f->bufsize = t; 1721 return (0); 1722 } 1723 1724 static int 1725 ugen_get_buffer_size(struct usb_fifo *f, void *addr) 1726 { 1727 *(int *)addr = f->bufsize; 1728 return (0); 1729 } 1730 1731 static int 1732 ugen_get_iface_desc(struct usb_fifo *f, 1733 struct usb_interface_descriptor *idesc) 1734 { 1735 struct usb_interface *iface; 1736 1737 iface = usbd_get_iface(f->udev, f->iface_index); 1738 if (iface && iface->idesc) { 1739 *idesc = *(iface->idesc); 1740 } else { 1741 return (EIO); 1742 } 1743 return (0); 1744 } 1745 1746 static int 1747 ugen_get_endpoint_desc(struct usb_fifo *f, 1748 struct usb_endpoint_descriptor *ed) 1749 { 1750 struct usb_endpoint *ep; 1751 1752 ep = usb_fifo_softc(f); 1753 1754 if (ep && ep->edesc) { 1755 *ed = *ep->edesc; 1756 } else { 1757 return (EINVAL); 1758 } 1759 return (0); 1760 } 1761 1762 static int 1763 ugen_set_power_mode(struct usb_fifo *f, int mode) 1764 { 1765 struct usb_device *udev = f->udev; 1766 int err; 1767 uint8_t old_mode; 1768 1769 if ((udev == NULL) || 1770 (udev->parent_hub == NULL)) { 1771 return (EINVAL); 1772 } 1773 err = priv_check(curthread, PRIV_DRIVER); 1774 if (err) 1775 return (err); 1776 1777 /* get old power mode */ 1778 old_mode = udev->power_mode; 1779 1780 /* if no change, then just return */ 1781 if (old_mode == mode) 1782 return (0); 1783 1784 switch (mode) { 1785 case USB_POWER_MODE_OFF: 1786 if (udev->flags.usb_mode == USB_MODE_HOST && 1787 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1788 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF; 1789 } 1790 /* set power mode will wake up the explore thread */ 1791 break; 1792 1793 case USB_POWER_MODE_ON: 1794 case USB_POWER_MODE_SAVE: 1795 break; 1796 1797 case USB_POWER_MODE_RESUME: 1798 #if USB_HAVE_POWERD 1799 /* let USB-powerd handle resume */ 1800 USB_BUS_LOCK(udev->bus); 1801 udev->pwr_save.write_refs++; 1802 udev->pwr_save.last_xfer_time = ticks; 1803 USB_BUS_UNLOCK(udev->bus); 1804 1805 /* set new power mode */ 1806 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE); 1807 1808 /* wait for resume to complete */ 1809 usb_pause_mtx(NULL, hz / 4); 1810 1811 /* clear write reference */ 1812 USB_BUS_LOCK(udev->bus); 1813 udev->pwr_save.write_refs--; 1814 USB_BUS_UNLOCK(udev->bus); 1815 #endif 1816 mode = USB_POWER_MODE_SAVE; 1817 break; 1818 1819 case USB_POWER_MODE_SUSPEND: 1820 #if USB_HAVE_POWERD 1821 /* let USB-powerd handle suspend */ 1822 USB_BUS_LOCK(udev->bus); 1823 udev->pwr_save.last_xfer_time = ticks - (256 * hz); 1824 USB_BUS_UNLOCK(udev->bus); 1825 #endif 1826 mode = USB_POWER_MODE_SAVE; 1827 break; 1828 1829 default: 1830 return (EINVAL); 1831 } 1832 1833 if (err) 1834 return (ENXIO); /* I/O failure */ 1835 1836 /* if we are powered off we need to re-enumerate first */ 1837 if (old_mode == USB_POWER_MODE_OFF) { 1838 if (udev->flags.usb_mode == USB_MODE_HOST && 1839 udev->re_enumerate_wait == USB_RE_ENUM_DONE) { 1840 udev->re_enumerate_wait = USB_RE_ENUM_START; 1841 } 1842 /* set power mode will wake up the explore thread */ 1843 } 1844 1845 /* set new power mode */ 1846 usbd_set_power_mode(udev, mode); 1847 1848 return (0); /* success */ 1849 } 1850 1851 static int 1852 ugen_get_power_mode(struct usb_fifo *f) 1853 { 1854 struct usb_device *udev = f->udev; 1855 1856 if (udev == NULL) 1857 return (USB_POWER_MODE_ON); 1858 1859 return (udev->power_mode); 1860 } 1861 1862 static int 1863 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp) 1864 { 1865 struct usb_device *udev = f->udev; 1866 struct usb_device *next; 1867 unsigned int nlevel = 0; 1868 1869 if (udev == NULL) 1870 goto error; 1871 1872 dpp->udp_bus = device_get_unit(udev->bus->bdev); 1873 dpp->udp_index = udev->device_index; 1874 1875 /* count port levels */ 1876 next = udev; 1877 while (next->parent_hub != NULL) { 1878 nlevel++; 1879 next = next->parent_hub; 1880 } 1881 1882 /* check if too many levels */ 1883 if (nlevel > USB_DEVICE_PORT_PATH_MAX) 1884 goto error; 1885 1886 /* store total level of ports */ 1887 dpp->udp_port_level = nlevel; 1888 1889 /* store port index array */ 1890 next = udev; 1891 while (next->parent_hub != NULL) { 1892 dpp->udp_port_no[--nlevel] = next->port_no; 1893 next = next->parent_hub; 1894 } 1895 return (0); /* success */ 1896 1897 error: 1898 return (EINVAL); /* failure */ 1899 } 1900 1901 static int 1902 ugen_get_power_usage(struct usb_fifo *f) 1903 { 1904 struct usb_device *udev = f->udev; 1905 1906 if (udev == NULL) 1907 return (0); 1908 1909 return (udev->power); 1910 } 1911 1912 static int 1913 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no, 1914 uint8_t set, uint16_t feature) 1915 { 1916 struct usb_device *udev = f->udev; 1917 struct usb_hub *hub; 1918 int err; 1919 1920 err = priv_check(curthread, PRIV_DRIVER); 1921 if (err) { 1922 return (err); 1923 } 1924 if (port_no == 0) { 1925 return (EINVAL); 1926 } 1927 if ((udev == NULL) || 1928 (udev->hub == NULL)) { 1929 return (EINVAL); 1930 } 1931 hub = udev->hub; 1932 1933 if (port_no > hub->nports) { 1934 return (EINVAL); 1935 } 1936 if (set) 1937 err = usbd_req_set_port_feature(udev, 1938 NULL, port_no, feature); 1939 else 1940 err = usbd_req_clear_port_feature(udev, 1941 NULL, port_no, feature); 1942 1943 if (err) 1944 return (ENXIO); /* failure */ 1945 1946 return (0); /* success */ 1947 } 1948 1949 static int 1950 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 1951 { 1952 struct usb_fifo *f_rx; 1953 struct usb_fifo *f_tx; 1954 int error = 0; 1955 1956 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1957 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1958 1959 switch (cmd) { 1960 case USB_SET_RX_SHORT_XFER: 1961 if (fflags & FREAD) { 1962 error = ugen_set_short_xfer(f_rx, addr); 1963 } else { 1964 error = EINVAL; 1965 } 1966 break; 1967 1968 case USB_SET_TX_FORCE_SHORT: 1969 if (fflags & FWRITE) { 1970 error = ugen_set_short_xfer(f_tx, addr); 1971 } else { 1972 error = EINVAL; 1973 } 1974 break; 1975 1976 case USB_SET_RX_TIMEOUT: 1977 if (fflags & FREAD) { 1978 error = ugen_set_timeout(f_rx, addr); 1979 } else { 1980 error = EINVAL; 1981 } 1982 break; 1983 1984 case USB_SET_TX_TIMEOUT: 1985 if (fflags & FWRITE) { 1986 error = ugen_set_timeout(f_tx, addr); 1987 } else { 1988 error = EINVAL; 1989 } 1990 break; 1991 1992 case USB_GET_RX_FRAME_SIZE: 1993 if (fflags & FREAD) { 1994 error = ugen_get_frame_size(f_rx, addr); 1995 } else { 1996 error = EINVAL; 1997 } 1998 break; 1999 2000 case USB_GET_TX_FRAME_SIZE: 2001 if (fflags & FWRITE) { 2002 error = ugen_get_frame_size(f_tx, addr); 2003 } else { 2004 error = EINVAL; 2005 } 2006 break; 2007 2008 case USB_SET_RX_BUFFER_SIZE: 2009 if (fflags & FREAD) { 2010 error = ugen_set_buffer_size(f_rx, addr); 2011 } else { 2012 error = EINVAL; 2013 } 2014 break; 2015 2016 case USB_SET_TX_BUFFER_SIZE: 2017 if (fflags & FWRITE) { 2018 error = ugen_set_buffer_size(f_tx, addr); 2019 } else { 2020 error = EINVAL; 2021 } 2022 break; 2023 2024 case USB_GET_RX_BUFFER_SIZE: 2025 if (fflags & FREAD) { 2026 error = ugen_get_buffer_size(f_rx, addr); 2027 } else { 2028 error = EINVAL; 2029 } 2030 break; 2031 2032 case USB_GET_TX_BUFFER_SIZE: 2033 if (fflags & FWRITE) { 2034 error = ugen_get_buffer_size(f_tx, addr); 2035 } else { 2036 error = EINVAL; 2037 } 2038 break; 2039 2040 case USB_GET_RX_INTERFACE_DESC: 2041 if (fflags & FREAD) { 2042 error = ugen_get_iface_desc(f_rx, addr); 2043 } else { 2044 error = EINVAL; 2045 } 2046 break; 2047 2048 case USB_GET_TX_INTERFACE_DESC: 2049 if (fflags & FWRITE) { 2050 error = ugen_get_iface_desc(f_tx, addr); 2051 } else { 2052 error = EINVAL; 2053 } 2054 break; 2055 2056 case USB_GET_RX_ENDPOINT_DESC: 2057 if (fflags & FREAD) { 2058 error = ugen_get_endpoint_desc(f_rx, addr); 2059 } else { 2060 error = EINVAL; 2061 } 2062 break; 2063 2064 case USB_GET_TX_ENDPOINT_DESC: 2065 if (fflags & FWRITE) { 2066 error = ugen_get_endpoint_desc(f_tx, addr); 2067 } else { 2068 error = EINVAL; 2069 } 2070 break; 2071 2072 case USB_SET_RX_STALL_FLAG: 2073 if ((fflags & FREAD) && (*(int *)addr)) { 2074 f_rx->flag_stall = 1; 2075 } 2076 break; 2077 2078 case USB_SET_TX_STALL_FLAG: 2079 if ((fflags & FWRITE) && (*(int *)addr)) { 2080 f_tx->flag_stall = 1; 2081 } 2082 break; 2083 2084 default: 2085 error = ENOIOCTL; 2086 break; 2087 } 2088 return (error); 2089 } 2090 2091 static int 2092 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags) 2093 { 2094 union { 2095 struct usb_interface_descriptor *idesc; 2096 struct usb_alt_interface *ai; 2097 struct usb_device_descriptor *ddesc; 2098 struct usb_config_descriptor *cdesc; 2099 struct usb_device_stats *stat; 2100 struct usb_fs_init *pinit; 2101 struct usb_fs_uninit *puninit; 2102 struct usb_device_port_path *dpp; 2103 uint32_t *ptime; 2104 void *addr; 2105 int *pint; 2106 } u; 2107 struct usb_device_descriptor *dtemp; 2108 struct usb_config_descriptor *ctemp; 2109 struct usb_interface *iface; 2110 int error = 0; 2111 uint8_t n; 2112 2113 u.addr = addr; 2114 2115 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 2116 2117 switch (cmd) { 2118 case USB_DISCOVER: 2119 usb_needs_explore_all(); 2120 break; 2121 2122 case USB_SETDEBUG: 2123 if (!(fflags & FWRITE)) { 2124 error = EPERM; 2125 break; 2126 } 2127 usb_debug = *(int *)addr; 2128 break; 2129 2130 case USB_GET_CONFIG: 2131 *(int *)addr = f->udev->curr_config_index; 2132 break; 2133 2134 case USB_SET_CONFIG: 2135 if (!(fflags & FWRITE)) { 2136 error = EPERM; 2137 break; 2138 } 2139 error = ugen_set_config(f, *(int *)addr); 2140 break; 2141 2142 case USB_GET_ALTINTERFACE: 2143 iface = usbd_get_iface(f->udev, 2144 u.ai->uai_interface_index); 2145 if (iface && iface->idesc) { 2146 u.ai->uai_alt_index = iface->alt_index; 2147 } else { 2148 error = EINVAL; 2149 } 2150 break; 2151 2152 case USB_SET_ALTINTERFACE: 2153 if (!(fflags & FWRITE)) { 2154 error = EPERM; 2155 break; 2156 } 2157 error = ugen_set_interface(f, 2158 u.ai->uai_interface_index, u.ai->uai_alt_index); 2159 break; 2160 2161 case USB_GET_DEVICE_DESC: 2162 dtemp = usbd_get_device_descriptor(f->udev); 2163 if (!dtemp) { 2164 error = EIO; 2165 break; 2166 } 2167 *u.ddesc = *dtemp; 2168 break; 2169 2170 case USB_GET_CONFIG_DESC: 2171 ctemp = usbd_get_config_descriptor(f->udev); 2172 if (!ctemp) { 2173 error = EIO; 2174 break; 2175 } 2176 *u.cdesc = *ctemp; 2177 break; 2178 2179 case USB_GET_FULL_DESC: 2180 error = ugen_get_cdesc(f, addr); 2181 break; 2182 2183 case USB_GET_STRING_DESC: 2184 error = ugen_get_sdesc(f, addr); 2185 break; 2186 2187 case USB_GET_IFACE_DRIVER: 2188 error = ugen_get_iface_driver(f, addr); 2189 break; 2190 2191 case USB_REQUEST: 2192 case USB_DO_REQUEST: 2193 if (!(fflags & FWRITE)) { 2194 error = EPERM; 2195 break; 2196 } 2197 error = ugen_do_request(f, addr); 2198 break; 2199 2200 case USB_DEVICEINFO: 2201 case USB_GET_DEVICEINFO: 2202 error = usb_gen_fill_deviceinfo(f, addr); 2203 break; 2204 2205 case USB_DEVICESTATS: 2206 for (n = 0; n != 4; n++) { 2207 2208 u.stat->uds_requests_fail[n] = 2209 f->udev->bus->stats_err.uds_requests[n]; 2210 2211 u.stat->uds_requests_ok[n] = 2212 f->udev->bus->stats_ok.uds_requests[n]; 2213 } 2214 break; 2215 2216 case USB_DEVICEENUMERATE: 2217 error = ugen_re_enumerate(f); 2218 break; 2219 2220 case USB_GET_PLUGTIME: 2221 *u.ptime = f->udev->plugtime; 2222 break; 2223 2224 case USB_CLAIM_INTERFACE: 2225 case USB_RELEASE_INTERFACE: 2226 /* TODO */ 2227 break; 2228 2229 case USB_IFACE_DRIVER_ACTIVE: 2230 2231 n = *u.pint & 0xFF; 2232 2233 iface = usbd_get_iface(f->udev, n); 2234 2235 if (iface && iface->subdev) 2236 error = 0; 2237 else 2238 error = ENXIO; 2239 break; 2240 2241 case USB_IFACE_DRIVER_DETACH: 2242 2243 error = priv_check(curthread, PRIV_DRIVER); 2244 2245 if (error) 2246 break; 2247 2248 n = *u.pint & 0xFF; 2249 2250 if (n == USB_IFACE_INDEX_ANY) { 2251 error = EINVAL; 2252 break; 2253 } 2254 2255 /* 2256 * Detach the currently attached driver. 2257 */ 2258 usb_detach_device(f->udev, n, 0); 2259 2260 /* 2261 * Set parent to self, this should keep attach away 2262 * until the next set configuration event. 2263 */ 2264 usbd_set_parent_iface(f->udev, n, n); 2265 break; 2266 2267 case USB_SET_POWER_MODE: 2268 error = ugen_set_power_mode(f, *u.pint); 2269 break; 2270 2271 case USB_GET_POWER_MODE: 2272 *u.pint = ugen_get_power_mode(f); 2273 break; 2274 2275 case USB_GET_DEV_PORT_PATH: 2276 error = ugen_get_port_path(f, u.dpp); 2277 break; 2278 2279 case USB_GET_POWER_USAGE: 2280 *u.pint = ugen_get_power_usage(f); 2281 break; 2282 2283 case USB_SET_PORT_ENABLE: 2284 error = ugen_do_port_feature(f, 2285 *u.pint, 1, UHF_PORT_ENABLE); 2286 break; 2287 2288 case USB_SET_PORT_DISABLE: 2289 error = ugen_do_port_feature(f, 2290 *u.pint, 0, UHF_PORT_ENABLE); 2291 break; 2292 2293 case USB_FS_INIT: 2294 /* verify input parameters */ 2295 if (u.pinit->pEndpoints == NULL) { 2296 error = EINVAL; 2297 break; 2298 } 2299 if (u.pinit->ep_index_max > 127) { 2300 error = EINVAL; 2301 break; 2302 } 2303 if (u.pinit->ep_index_max == 0) { 2304 error = EINVAL; 2305 break; 2306 } 2307 if (f->fs_xfer != NULL) { 2308 error = EBUSY; 2309 break; 2310 } 2311 if (f->dev_ep_index != 0) { 2312 error = EINVAL; 2313 break; 2314 } 2315 if (ugen_fifo_in_use(f, fflags)) { 2316 error = EBUSY; 2317 break; 2318 } 2319 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2320 if (error) { 2321 break; 2322 } 2323 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2324 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2325 if (f->fs_xfer == NULL) { 2326 usb_fifo_free_buffer(f); 2327 error = ENOMEM; 2328 break; 2329 } 2330 f->fs_ep_max = u.pinit->ep_index_max; 2331 f->fs_ep_ptr = u.pinit->pEndpoints; 2332 break; 2333 2334 case USB_FS_UNINIT: 2335 if (u.puninit->dummy != 0) { 2336 error = EINVAL; 2337 break; 2338 } 2339 error = ugen_fs_uninit(f); 2340 break; 2341 2342 default: 2343 mtx_lock(f->priv_mtx); 2344 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2345 mtx_unlock(f->priv_mtx); 2346 break; 2347 } 2348 DPRINTFN(6, "error=%d\n", error); 2349 return (error); 2350 } 2351 2352 static void 2353 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error) 2354 { 2355 ; /* workaround for a bug in "indent" */ 2356 2357 DPRINTF("st=%u alen=%u aframes=%u\n", 2358 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2359 2360 switch (USB_GET_STATE(xfer)) { 2361 case USB_ST_SETUP: 2362 usbd_transfer_submit(xfer); 2363 break; 2364 default: 2365 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2366 break; 2367 } 2368 } 2369 #endif /* USB_HAVE_UGEN */
Cache object: 1b26d9dc0d226227650851e48f77238a
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