usb_generic.c revision 186730
1/* $FreeBSD: head/sys/dev/usb2/core/usb2_generic.c 186730 2009-01-04 00:12:01Z alfred $ */ 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 <dev/usb2/include/usb2_defs.h> 28#include <dev/usb2/include/usb2_mfunc.h> 29#include <dev/usb2/include/usb2_standard.h> 30#include <dev/usb2/include/usb2_ioctl.h> 31#include <dev/usb2/include/usb2_error.h> 32 33#define USB_DEBUG_VAR ugen_debug 34 35#include <dev/usb2/core/usb2_core.h> 36#include <dev/usb2/core/usb2_mbuf.h> 37#include <dev/usb2/core/usb2_dev.h> 38#include <dev/usb2/core/usb2_process.h> 39#include <dev/usb2/core/usb2_device.h> 40#include <dev/usb2/core/usb2_debug.h> 41#include <dev/usb2/core/usb2_request.h> 42#include <dev/usb2/core/usb2_busdma.h> 43#include <dev/usb2/core/usb2_util.h> 44#include <dev/usb2/core/usb2_hub.h> 45#include <dev/usb2/core/usb2_generic.h> 46#include <dev/usb2/core/usb2_transfer.h> 47 48#include <dev/usb2/controller/usb2_controller.h> 49#include <dev/usb2/controller/usb2_bus.h> 50 51/* defines */ 52 53#define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */ 54#define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */ 55#define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */ 56 57/* function prototypes */ 58 59static usb2_callback_t ugen_read_clear_stall_callback; 60static usb2_callback_t ugen_write_clear_stall_callback; 61static usb2_callback_t ugen_default_read_callback; 62static usb2_callback_t ugen_default_write_callback; 63static usb2_callback_t ugen_isoc_read_callback; 64static usb2_callback_t ugen_isoc_write_callback; 65static usb2_callback_t ugen_default_fs_callback; 66 67static usb2_fifo_open_t ugen_open; 68static usb2_fifo_close_t ugen_close; 69static usb2_fifo_ioctl_t ugen_ioctl; 70static usb2_fifo_ioctl_t ugen_ioctl_post; 71static usb2_fifo_cmd_t ugen_start_read; 72static usb2_fifo_cmd_t ugen_start_write; 73static usb2_fifo_cmd_t ugen_stop_io; 74 75static int ugen_transfer_setup(struct usb2_fifo *, 76 const struct usb2_config *, uint8_t); 77static int ugen_open_pipe_write(struct usb2_fifo *); 78static int ugen_open_pipe_read(struct usb2_fifo *); 79static int ugen_set_config(struct usb2_fifo *, uint8_t); 80static int ugen_set_interface(struct usb2_fifo *, uint8_t, uint8_t); 81static int ugen_get_cdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 82static int ugen_get_sdesc(struct usb2_fifo *, struct usb2_gen_descriptor *); 83static int usb2_gen_fill_deviceinfo(struct usb2_fifo *, 84 struct usb2_device_info *); 85static int ugen_re_enumerate(struct usb2_fifo *); 86static int ugen_iface_ioctl(struct usb2_fifo *, u_long, void *, int); 87static uint8_t ugen_fs_get_complete(struct usb2_fifo *, uint8_t *); 88static int ugen_fs_uninit(struct usb2_fifo *f); 89 90/* structures */ 91 92struct usb2_fifo_methods usb2_ugen_methods = { 93 .f_open = &ugen_open, 94 .f_close = &ugen_close, 95 .f_ioctl = &ugen_ioctl, 96 .f_ioctl_post = &ugen_ioctl_post, 97 .f_start_read = &ugen_start_read, 98 .f_stop_read = &ugen_stop_io, 99 .f_start_write = &ugen_start_write, 100 .f_stop_write = &ugen_stop_io, 101}; 102 103#if USB_DEBUG 104static int ugen_debug = 0; 105 106SYSCTL_NODE(_hw_usb2, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic"); 107SYSCTL_INT(_hw_usb2_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug, 108 0, "Debug level"); 109#endif 110 111 112/* prototypes */ 113 114static int 115ugen_transfer_setup(struct usb2_fifo *f, 116 const struct usb2_config *setup, uint8_t n_setup) 117{ 118 struct usb2_pipe *pipe = f->priv_sc0; 119 struct usb2_device *udev = f->udev; 120 uint8_t iface_index = pipe->iface_index; 121 int error; 122 123 mtx_unlock(f->priv_mtx); 124 125 /* 126 * "usb2_transfer_setup()" can sleep so one needs to make a wrapper, 127 * exiting the mutex and checking things 128 */ 129 error = usb2_transfer_setup(udev, &iface_index, f->xfer, 130 setup, n_setup, f, f->priv_mtx); 131 if (error == 0) { 132 133 if (f->xfer[0]->nframes == 1) { 134 error = usb2_fifo_alloc_buffer(f, 135 f->xfer[0]->max_data_length, 2); 136 } else { 137 error = usb2_fifo_alloc_buffer(f, 138 f->xfer[0]->max_frame_size, 139 2 * f->xfer[0]->nframes); 140 } 141 if (error) { 142 usb2_transfer_unsetup(f->xfer, n_setup); 143 } 144 } 145 mtx_lock(f->priv_mtx); 146 147 return (error); 148} 149 150static int 151ugen_open(struct usb2_fifo *f, int fflags, struct thread *td) 152{ 153 struct usb2_pipe *pipe = f->priv_sc0; 154 struct usb2_endpoint_descriptor *ed = pipe->edesc; 155 uint8_t type; 156 157 DPRINTFN(6, "flag=0x%x\n", fflags); 158 159 mtx_lock(f->priv_mtx); 160 if (usb2_get_speed(f->udev) == USB_SPEED_HIGH) { 161 f->nframes = UGEN_HW_FRAMES * 8; 162 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE; 163 } else { 164 f->nframes = UGEN_HW_FRAMES; 165 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE; 166 } 167 168 type = ed->bmAttributes & UE_XFERTYPE; 169 if (type == UE_INTERRUPT) { 170 f->bufsize = 0; /* use "wMaxPacketSize" */ 171 } 172 f->timeout = USB_NO_TIMEOUT; 173 f->flag_short = 0; 174 f->fifo_zlp = 0; 175 mtx_unlock(f->priv_mtx); 176 177 return (0); 178} 179 180static void 181ugen_close(struct usb2_fifo *f, int fflags, struct thread *td) 182{ 183 DPRINTFN(6, "flag=0x%x\n", fflags); 184 185 /* cleanup */ 186 187 mtx_lock(f->priv_mtx); 188 usb2_transfer_stop(f->xfer[0]); 189 usb2_transfer_stop(f->xfer[1]); 190 mtx_unlock(f->priv_mtx); 191 192 usb2_transfer_unsetup(f->xfer, 2); 193 usb2_fifo_free_buffer(f); 194 195 if (ugen_fs_uninit(f)) { 196 /* ignore any errors - we are closing */ 197 DPRINTFN(6, "no FIFOs\n"); 198 } 199} 200 201static int 202ugen_open_pipe_write(struct usb2_fifo *f) 203{ 204 struct usb2_config usb2_config[2]; 205 struct usb2_pipe *pipe = f->priv_sc0; 206 struct usb2_endpoint_descriptor *ed = pipe->edesc; 207 208 mtx_assert(f->priv_mtx, MA_OWNED); 209 210 if (f->xfer[0] || f->xfer[1]) { 211 /* transfers are already opened */ 212 return (0); 213 } 214 bzero(usb2_config, sizeof(usb2_config)); 215 216 usb2_config[1].type = UE_CONTROL; 217 usb2_config[1].endpoint = 0; 218 usb2_config[1].direction = UE_DIR_ANY; 219 usb2_config[1].mh.timeout = 1000; /* 1 second */ 220 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 221 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 222 usb2_config[1].mh.callback = &ugen_write_clear_stall_callback; 223 224 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 225 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 226 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 227 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 228 usb2_config[0].mh.flags.proxy_buffer = 1; 229 230 switch (ed->bmAttributes & UE_XFERTYPE) { 231 case UE_INTERRUPT: 232 case UE_BULK: 233 if (f->flag_short) { 234 usb2_config[0].mh.flags.force_short_xfer = 1; 235 } 236 usb2_config[0].mh.callback = &ugen_default_write_callback; 237 usb2_config[0].mh.timeout = f->timeout; 238 usb2_config[0].mh.frames = 1; 239 usb2_config[0].mh.bufsize = f->bufsize; 240 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 241 if (ugen_transfer_setup(f, usb2_config, 2)) { 242 return (EIO); 243 } 244 /* first transfer does not clear stall */ 245 f->flag_stall = 0; 246 break; 247 248 case UE_ISOCHRONOUS: 249 usb2_config[0].mh.flags.short_xfer_ok = 1; 250 usb2_config[0].mh.bufsize = 0; /* use default */ 251 usb2_config[0].mh.frames = f->nframes; 252 usb2_config[0].mh.callback = &ugen_isoc_write_callback; 253 usb2_config[0].mh.timeout = 0; 254 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 255 256 /* clone configuration */ 257 usb2_config[1] = usb2_config[0]; 258 259 if (ugen_transfer_setup(f, usb2_config, 2)) { 260 return (EIO); 261 } 262 break; 263 default: 264 return (EINVAL); 265 } 266 return (0); 267} 268 269static int 270ugen_open_pipe_read(struct usb2_fifo *f) 271{ 272 struct usb2_config usb2_config[2]; 273 struct usb2_pipe *pipe = f->priv_sc0; 274 struct usb2_endpoint_descriptor *ed = pipe->edesc; 275 276 mtx_assert(f->priv_mtx, MA_OWNED); 277 278 if (f->xfer[0] || f->xfer[1]) { 279 /* transfers are already opened */ 280 return (0); 281 } 282 bzero(usb2_config, sizeof(usb2_config)); 283 284 usb2_config[1].type = UE_CONTROL; 285 usb2_config[1].endpoint = 0; 286 usb2_config[1].direction = UE_DIR_ANY; 287 usb2_config[1].mh.timeout = 1000; /* 1 second */ 288 usb2_config[1].mh.interval = 50;/* 50 milliseconds */ 289 usb2_config[1].mh.bufsize = sizeof(struct usb2_device_request); 290 usb2_config[1].mh.callback = &ugen_read_clear_stall_callback; 291 292 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 293 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 294 usb2_config[0].direction = UE_DIR_IN; 295 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 296 usb2_config[0].mh.flags.proxy_buffer = 1; 297 298 switch (ed->bmAttributes & UE_XFERTYPE) { 299 case UE_INTERRUPT: 300 case UE_BULK: 301 if (f->flag_short) { 302 usb2_config[0].mh.flags.short_xfer_ok = 1; 303 } 304 usb2_config[0].mh.timeout = f->timeout; 305 usb2_config[0].mh.frames = 1; 306 usb2_config[0].mh.callback = &ugen_default_read_callback; 307 usb2_config[0].mh.bufsize = f->bufsize; 308 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 309 310 if (ugen_transfer_setup(f, usb2_config, 2)) { 311 return (EIO); 312 } 313 /* first transfer does not clear stall */ 314 f->flag_stall = 0; 315 break; 316 317 case UE_ISOCHRONOUS: 318 usb2_config[0].mh.flags.short_xfer_ok = 1; 319 usb2_config[0].mh.bufsize = 0; /* use default */ 320 usb2_config[0].mh.frames = f->nframes; 321 usb2_config[0].mh.callback = &ugen_isoc_read_callback; 322 usb2_config[0].mh.timeout = 0; 323 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 324 325 /* clone configuration */ 326 usb2_config[1] = usb2_config[0]; 327 328 if (ugen_transfer_setup(f, usb2_config, 2)) { 329 return (EIO); 330 } 331 break; 332 333 default: 334 return (EINVAL); 335 } 336 return (0); 337} 338 339static void 340ugen_start_read(struct usb2_fifo *f) 341{ 342 /* check that pipes are open */ 343 if (ugen_open_pipe_read(f)) { 344 /* signal error */ 345 usb2_fifo_put_data_error(f); 346 } 347 /* start transfers */ 348 usb2_transfer_start(f->xfer[0]); 349 usb2_transfer_start(f->xfer[1]); 350} 351 352static void 353ugen_start_write(struct usb2_fifo *f) 354{ 355 /* check that pipes are open */ 356 if (ugen_open_pipe_write(f)) { 357 /* signal error */ 358 usb2_fifo_get_data_error(f); 359 } 360 /* start transfers */ 361 usb2_transfer_start(f->xfer[0]); 362 usb2_transfer_start(f->xfer[1]); 363} 364 365static void 366ugen_stop_io(struct usb2_fifo *f) 367{ 368 /* stop transfers */ 369 usb2_transfer_stop(f->xfer[0]); 370 usb2_transfer_stop(f->xfer[1]); 371} 372 373static void 374ugen_default_read_callback(struct usb2_xfer *xfer) 375{ 376 struct usb2_fifo *f = xfer->priv_sc; 377 struct usb2_mbuf *m; 378 379 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 380 381 switch (USB_GET_STATE(xfer)) { 382 case USB_ST_TRANSFERRED: 383 if (xfer->actlen == 0) { 384 if (f->fifo_zlp != 4) { 385 f->fifo_zlp++; 386 } else { 387 /* 388 * Throttle a little bit we have multiple ZLPs 389 * in a row! 390 */ 391 xfer->interval = 64; /* ms */ 392 } 393 } else { 394 /* clear throttle */ 395 xfer->interval = 0; 396 f->fifo_zlp = 0; 397 } 398 usb2_fifo_put_data(f, xfer->frbuffers, 0, 399 xfer->actlen, 1); 400 401 case USB_ST_SETUP: 402 if (f->flag_stall) { 403 usb2_transfer_start(f->xfer[1]); 404 break; 405 } 406 USB_IF_POLL(&f->free_q, m); 407 if (m) { 408 xfer->frlengths[0] = xfer->max_data_length; 409 usb2_start_hardware(xfer); 410 } 411 break; 412 413 default: /* Error */ 414 if (xfer->error != USB_ERR_CANCELLED) { 415 f->flag_stall = 1; 416 f->fifo_zlp = 0; 417 usb2_transfer_start(f->xfer[1]); 418 } 419 break; 420 } 421} 422 423static void 424ugen_default_write_callback(struct usb2_xfer *xfer) 425{ 426 struct usb2_fifo *f = xfer->priv_sc; 427 uint32_t actlen; 428 429 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 430 431 switch (USB_GET_STATE(xfer)) { 432 case USB_ST_SETUP: 433 case USB_ST_TRANSFERRED: 434 /* 435 * If writing is in stall, just jump to clear stall 436 * callback and solve the situation. 437 */ 438 if (f->flag_stall) { 439 usb2_transfer_start(f->xfer[1]); 440 break; 441 } 442 /* 443 * Write data, setup and perform hardware transfer. 444 */ 445 if (usb2_fifo_get_data(f, xfer->frbuffers, 0, 446 xfer->max_data_length, &actlen, 0)) { 447 xfer->frlengths[0] = actlen; 448 usb2_start_hardware(xfer); 449 } 450 break; 451 452 default: /* Error */ 453 if (xfer->error != USB_ERR_CANCELLED) { 454 f->flag_stall = 1; 455 usb2_transfer_start(f->xfer[1]); 456 } 457 break; 458 } 459} 460 461static void 462ugen_read_clear_stall_callback(struct usb2_xfer *xfer) 463{ 464 struct usb2_fifo *f = xfer->priv_sc; 465 struct usb2_xfer *xfer_other = f->xfer[0]; 466 467 if (f->flag_stall == 0) { 468 /* nothing to do */ 469 return; 470 } 471 if (usb2_clear_stall_callback(xfer, xfer_other)) { 472 DPRINTFN(5, "f=%p: stall cleared\n", f); 473 f->flag_stall = 0; 474 usb2_transfer_start(xfer_other); 475 } 476} 477 478static void 479ugen_write_clear_stall_callback(struct usb2_xfer *xfer) 480{ 481 struct usb2_fifo *f = xfer->priv_sc; 482 struct usb2_xfer *xfer_other = f->xfer[0]; 483 484 if (f->flag_stall == 0) { 485 /* nothing to do */ 486 return; 487 } 488 if (usb2_clear_stall_callback(xfer, xfer_other)) { 489 DPRINTFN(5, "f=%p: stall cleared\n", f); 490 f->flag_stall = 0; 491 usb2_transfer_start(xfer_other); 492 } 493} 494 495static void 496ugen_isoc_read_callback(struct usb2_xfer *xfer) 497{ 498 struct usb2_fifo *f = xfer->priv_sc; 499 uint32_t offset; 500 uint16_t n; 501 502 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 503 504 switch (USB_GET_STATE(xfer)) { 505 case USB_ST_TRANSFERRED: 506 507 DPRINTFN(6, "actlen=%d\n", xfer->actlen); 508 509 offset = 0; 510 511 for (n = 0; n != xfer->aframes; n++) { 512 usb2_fifo_put_data(f, xfer->frbuffers, offset, 513 xfer->frlengths[n], 1); 514 offset += xfer->max_frame_size; 515 } 516 517 case USB_ST_SETUP: 518tr_setup: 519 for (n = 0; n != xfer->nframes; n++) { 520 /* setup size for next transfer */ 521 xfer->frlengths[n] = xfer->max_frame_size; 522 } 523 usb2_start_hardware(xfer); 524 break; 525 526 default: /* Error */ 527 if (xfer->error == USB_ERR_CANCELLED) { 528 break; 529 } 530 goto tr_setup; 531 } 532} 533 534static void 535ugen_isoc_write_callback(struct usb2_xfer *xfer) 536{ 537 struct usb2_fifo *f = xfer->priv_sc; 538 uint32_t actlen; 539 uint32_t offset; 540 uint16_t n; 541 542 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes); 543 544 switch (USB_GET_STATE(xfer)) { 545 case USB_ST_TRANSFERRED: 546 case USB_ST_SETUP: 547tr_setup: 548 offset = 0; 549 for (n = 0; n != xfer->nframes; n++) { 550 if (usb2_fifo_get_data(f, xfer->frbuffers, offset, 551 xfer->max_frame_size, &actlen, 1)) { 552 xfer->frlengths[n] = actlen; 553 offset += actlen; 554 } else { 555 break; 556 } 557 } 558 559 for (; n != xfer->nframes; n++) { 560 /* fill in zero frames */ 561 xfer->frlengths[n] = 0; 562 } 563 usb2_start_hardware(xfer); 564 break; 565 566 default: /* Error */ 567 if (xfer->error == USB_ERR_CANCELLED) { 568 break; 569 } 570 goto tr_setup; 571 } 572} 573 574static int 575ugen_set_config(struct usb2_fifo *f, uint8_t index) 576{ 577 DPRINTFN(2, "index %u\n", index); 578 579 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 580 /* not possible in device side mode */ 581 return (ENOTTY); 582 } 583 if (f->udev->curr_config_index == index) { 584 /* no change needed */ 585 return (0); 586 } 587 /* make sure all FIFO's are gone */ 588 /* else there can be a deadlock */ 589 if (ugen_fs_uninit(f)) { 590 /* ignore any errors */ 591 DPRINTFN(6, "no FIFOs\n"); 592 } 593 /* change setting - will free generic FIFOs, if any */ 594 if (usb2_set_config_index(f->udev, index)) { 595 return (EIO); 596 } 597 /* probe and attach */ 598 if (usb2_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) { 599 return (EIO); 600 } 601 return (0); 602} 603 604static int 605ugen_set_interface(struct usb2_fifo *f, 606 uint8_t iface_index, uint8_t alt_index) 607{ 608 DPRINTFN(2, "%u, %u\n", iface_index, alt_index); 609 610 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 611 /* not possible in device side mode */ 612 return (ENOTTY); 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 /* change setting - will free generic FIFOs, if any */ 621 if (usb2_set_alt_interface_index(f->udev, iface_index, alt_index)) { 622 return (EIO); 623 } 624 /* probe and attach */ 625 if (usb2_probe_and_attach(f->udev, iface_index)) { 626 return (EIO); 627 } 628 return (0); 629} 630 631/*------------------------------------------------------------------------* 632 * ugen_get_cdesc 633 * 634 * This function will retrieve the complete configuration descriptor 635 * at the given index. 636 *------------------------------------------------------------------------*/ 637static int 638ugen_get_cdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 639{ 640 struct usb2_config_descriptor *cdesc; 641 struct usb2_device *udev = f->udev; 642 int error; 643 uint16_t len; 644 uint8_t free_data; 645 646 DPRINTFN(6, "\n"); 647 648 if (ugd->ugd_data == NULL) { 649 /* userland pointer should not be zero */ 650 return (EINVAL); 651 } 652 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) || 653 (ugd->ugd_config_index == udev->curr_config_index)) { 654 cdesc = usb2_get_config_descriptor(udev); 655 if (cdesc == NULL) { 656 return (ENXIO); 657 } 658 free_data = 0; 659 660 } else { 661 if (usb2_req_get_config_desc_full(udev, 662 &Giant, &cdesc, M_USBDEV, 663 ugd->ugd_config_index)) { 664 return (ENXIO); 665 } 666 free_data = 1; 667 } 668 669 len = UGETW(cdesc->wTotalLength); 670 if (len > ugd->ugd_maxlen) { 671 len = ugd->ugd_maxlen; 672 } 673 DPRINTFN(6, "len=%u\n", len); 674 675 ugd->ugd_actlen = len; 676 ugd->ugd_offset = 0; 677 678 error = copyout(cdesc, ugd->ugd_data, len); 679 680 if (free_data) { 681 free(cdesc, M_USBDEV); 682 } 683 return (error); 684} 685 686static int 687ugen_get_sdesc(struct usb2_fifo *f, struct usb2_gen_descriptor *ugd) 688{ 689 void *ptr = f->udev->bus->scratch[0].data; 690 uint16_t size = sizeof(f->udev->bus->scratch[0].data); 691 int error; 692 693 if (usb2_req_get_string_desc(f->udev, &Giant, ptr, 694 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 695 error = EINVAL; 696 } else { 697 698 if (size > ((uint8_t *)ptr)[0]) { 699 size = ((uint8_t *)ptr)[0]; 700 } 701 if (size > ugd->ugd_maxlen) { 702 size = ugd->ugd_maxlen; 703 } 704 ugd->ugd_actlen = size; 705 ugd->ugd_offset = 0; 706 707 error = copyout(ptr, ugd->ugd_data, size); 708 } 709 return (error); 710} 711 712/*------------------------------------------------------------------------* 713 * usb2_gen_fill_devicenames 714 * 715 * This function dumps information about an USB device names to 716 * userland. 717 * 718 * Returns: 719 * 0: Success 720 * Else: Failure 721 *------------------------------------------------------------------------*/ 722static int 723usb2_gen_fill_devicenames(struct usb2_fifo *f, struct usb2_device_names *dn) 724{ 725 struct usb2_interface *iface; 726 const char *ptr; 727 char *dst; 728 char buf[32]; 729 int error = 0; 730 int len; 731 int max_len; 732 uint8_t i; 733 uint8_t first = 1; 734 735 max_len = dn->udn_devnames_len; 736 dst = dn->udn_devnames_ptr; 737 738 if (max_len == 0) { 739 return (EINVAL); 740 } 741 /* put a zero there */ 742 error = copyout("", dst, 1); 743 if (error) { 744 return (error); 745 } 746 for (i = 0;; i++) { 747 iface = usb2_get_iface(f->udev, i); 748 if (iface == NULL) { 749 break; 750 } 751 if ((iface->subdev != NULL) && 752 device_is_attached(iface->subdev)) { 753 ptr = device_get_nameunit(iface->subdev); 754 if (!first) { 755 strlcpy(buf, ", ", sizeof(buf)); 756 } else { 757 buf[0] = 0; 758 } 759 strlcat(buf, ptr, sizeof(buf)); 760 len = strlen(buf) + 1; 761 if (len > max_len) { 762 break; 763 } 764 error = copyout(buf, dst, len); 765 if (error) { 766 return (error); 767 } 768 len--; 769 dst += len; 770 max_len -= len; 771 first = 0; 772 } 773 } 774 return (0); 775} 776 777/*------------------------------------------------------------------------* 778 * usb2_gen_fill_deviceinfo 779 * 780 * This function dumps information about an USB device to the 781 * structure pointed to by the "di" argument. 782 * 783 * Returns: 784 * 0: Success 785 * Else: Failure 786 *------------------------------------------------------------------------*/ 787static int 788usb2_gen_fill_deviceinfo(struct usb2_fifo *f, struct usb2_device_info *di) 789{ 790 struct usb2_device *udev; 791 struct usb2_device *hub; 792 793 udev = f->udev; 794 795 bzero(di, sizeof(di[0])); 796 797 di->udi_bus = device_get_unit(udev->bus->bdev); 798 di->udi_addr = udev->address; 799 di->udi_index = udev->device_index; 800 strlcpy(di->udi_serial, udev->serial, 801 sizeof(di->udi_serial)); 802 strlcpy(di->udi_vendor, udev->manufacturer, 803 sizeof(di->udi_vendor)); 804 strlcpy(di->udi_product, udev->product, 805 sizeof(di->udi_product)); 806 usb2_printBCD(di->udi_release, sizeof(di->udi_release), 807 UGETW(udev->ddesc.bcdDevice)); 808 di->udi_vendorNo = UGETW(udev->ddesc.idVendor); 809 di->udi_productNo = UGETW(udev->ddesc.idProduct); 810 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice); 811 di->udi_class = udev->ddesc.bDeviceClass; 812 di->udi_subclass = udev->ddesc.bDeviceSubClass; 813 di->udi_protocol = udev->ddesc.bDeviceProtocol; 814 di->udi_config_no = udev->curr_config_no; 815 di->udi_config_index = udev->curr_config_index; 816 di->udi_power = udev->flags.self_powered ? 0 : udev->power; 817 di->udi_speed = udev->speed; 818 di->udi_mode = udev->flags.usb2_mode; 819 di->udi_power_mode = udev->power_mode; 820 if (udev->flags.suspended) { 821 di->udi_suspended = 1; 822 } else { 823 di->udi_suspended = 0; 824 } 825 826 hub = udev->parent_hub; 827 if (hub) { 828 di->udi_hubaddr = hub->address; 829 di->udi_hubindex = hub->device_index; 830 di->udi_hubport = udev->port_no; 831 } 832 return (0); 833} 834 835/*------------------------------------------------------------------------* 836 * ugen_check_request 837 * 838 * Return values: 839 * 0: Access allowed 840 * Else: No access 841 *------------------------------------------------------------------------*/ 842static int 843ugen_check_request(struct usb2_device *udev, struct usb2_device_request *req) 844{ 845 struct usb2_pipe *pipe; 846 int error; 847 848 /* 849 * Avoid requests that would damage the bus integrity: 850 */ 851 if (((req->bmRequestType == UT_WRITE_DEVICE) && 852 (req->bRequest == UR_SET_ADDRESS)) || 853 ((req->bmRequestType == UT_WRITE_DEVICE) && 854 (req->bRequest == UR_SET_CONFIG)) || 855 ((req->bmRequestType == UT_WRITE_INTERFACE) && 856 (req->bRequest == UR_SET_INTERFACE))) { 857 /* 858 * These requests can be useful for testing USB drivers. 859 */ 860 error = priv_check(curthread, PRIV_DRIVER); 861 if (error) { 862 return (error); 863 } 864 } 865 /* 866 * Special case - handle clearing of stall 867 */ 868 if (req->bmRequestType == UT_WRITE_ENDPOINT) { 869 870 pipe = usb2_get_pipe_by_addr(udev, req->wIndex[0]); 871 if (pipe == NULL) { 872 return (EINVAL); 873 } 874 if (usb2_check_thread_perm(udev, curthread, FREAD | FWRITE, 875 pipe->iface_index, req->wIndex[0] & UE_ADDR)) { 876 return (EPERM); 877 } 878 if ((req->bRequest == UR_CLEAR_FEATURE) && 879 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) { 880 usb2_clear_data_toggle(udev, pipe); 881 } 882 } 883 /* TODO: add more checks to verify the interface index */ 884 885 return (0); 886} 887 888int 889ugen_do_request(struct usb2_fifo *f, struct usb2_ctl_request *ur) 890{ 891 int error; 892 uint16_t len; 893 uint16_t actlen; 894 895 if (ugen_check_request(f->udev, &ur->ucr_request)) { 896 return (EPERM); 897 } 898 len = UGETW(ur->ucr_request.wLength); 899 900 /* check if "ucr_data" is valid */ 901 if (len != 0) { 902 if (ur->ucr_data == NULL) { 903 return (EFAULT); 904 } 905 } 906 /* do the USB request */ 907 error = usb2_do_request_flags 908 (f->udev, NULL, &ur->ucr_request, ur->ucr_data, 909 (ur->ucr_flags & USB_SHORT_XFER_OK) | 910 USB_USER_DATA_PTR, &actlen, 911 USB_DEFAULT_TIMEOUT); 912 913 ur->ucr_actlen = actlen; 914 915 if (error) { 916 error = EIO; 917 } 918 return (error); 919} 920 921/*------------------------------------------------------------------------ 922 * ugen_re_enumerate 923 *------------------------------------------------------------------------*/ 924static int 925ugen_re_enumerate(struct usb2_fifo *f) 926{ 927 struct usb2_device *udev = f->udev; 928 int error; 929 930 /* 931 * This request can be useful for testing USB drivers: 932 */ 933 error = priv_check(curthread, PRIV_DRIVER); 934 if (error) { 935 return (error); 936 } 937 /* get the device unconfigured */ 938 error = ugen_set_config(f, USB_UNCONFIG_INDEX); 939 if (error) { 940 return (error); 941 } 942 /* do a bus-reset */ 943 mtx_lock(f->priv_mtx); 944 error = usb2_req_re_enumerate(udev, f->priv_mtx); 945 mtx_unlock(f->priv_mtx); 946 947 if (error) { 948 return (ENXIO); 949 } 950 /* restore configuration to index 0 */ 951 error = ugen_set_config(f, 0); 952 if (error) { 953 return (error); 954 } 955 return (0); 956} 957 958int 959ugen_fs_uninit(struct usb2_fifo *f) 960{ 961 if (f->fs_xfer == NULL) { 962 return (EINVAL); 963 } 964 usb2_transfer_unsetup(f->fs_xfer, f->fs_ep_max); 965 free(f->fs_xfer, M_USB); 966 f->fs_xfer = NULL; 967 f->fs_ep_max = 0; 968 f->fs_ep_ptr = NULL; 969 f->flag_iscomplete = 0; 970 usb2_fifo_free_buffer(f); 971 return (0); 972} 973 974static uint8_t 975ugen_fs_get_complete(struct usb2_fifo *f, uint8_t *pindex) 976{ 977 struct usb2_mbuf *m; 978 979 USB_IF_DEQUEUE(&f->used_q, m); 980 981 if (m) { 982 *pindex = *((uint8_t *)(m->cur_data_ptr)); 983 984 USB_IF_ENQUEUE(&f->free_q, m); 985 986 return (0); /* success */ 987 } else { 988 989 *pindex = 0; /* fix compiler warning */ 990 991 f->flag_iscomplete = 0; 992 } 993 return (1); /* failure */ 994} 995 996static void 997ugen_fs_set_complete(struct usb2_fifo *f, uint8_t index) 998{ 999 struct usb2_mbuf *m; 1000 1001 USB_IF_DEQUEUE(&f->free_q, m); 1002 1003 if (m == NULL) { 1004 /* can happen during close */ 1005 DPRINTF("out of buffers\n"); 1006 return; 1007 } 1008 USB_MBUF_RESET(m); 1009 1010 *((uint8_t *)(m->cur_data_ptr)) = index; 1011 1012 USB_IF_ENQUEUE(&f->used_q, m); 1013 1014 f->flag_iscomplete = 1; 1015 1016 usb2_fifo_wakeup(f); 1017} 1018 1019static int 1020ugen_fs_copy_in(struct usb2_fifo *f, uint8_t ep_index) 1021{ 1022 struct usb2_device_request *req; 1023 struct usb2_xfer *xfer; 1024 struct usb2_fs_endpoint fs_ep; 1025 void *uaddr; /* userland pointer */ 1026 void *kaddr; 1027 uint32_t offset; 1028 uint32_t length; 1029 uint32_t n; 1030 uint32_t rem; 1031 int error; 1032 uint8_t isread; 1033 1034 if (ep_index >= f->fs_ep_max) { 1035 return (EINVAL); 1036 } 1037 xfer = f->fs_xfer[ep_index]; 1038 if (xfer == NULL) { 1039 return (EINVAL); 1040 } 1041 mtx_lock(f->priv_mtx); 1042 if (usb2_transfer_pending(xfer)) { 1043 mtx_unlock(f->priv_mtx); 1044 return (EBUSY); /* should not happen */ 1045 } 1046 mtx_unlock(f->priv_mtx); 1047 1048 error = copyin(f->fs_ep_ptr + 1049 ep_index, &fs_ep, sizeof(fs_ep)); 1050 if (error) { 1051 return (error); 1052 } 1053 /* security checks */ 1054 1055 if (fs_ep.nFrames > xfer->max_frame_count) { 1056 xfer->error = USB_ERR_INVAL; 1057 goto complete; 1058 } 1059 if (fs_ep.nFrames == 0) { 1060 xfer->error = USB_ERR_INVAL; 1061 goto complete; 1062 } 1063 error = copyin(fs_ep.ppBuffer, 1064 &uaddr, sizeof(uaddr)); 1065 if (error) { 1066 return (error); 1067 } 1068 /* reset first frame */ 1069 usb2_set_frame_offset(xfer, 0, 0); 1070 1071 if (xfer->flags_int.control_xfr) { 1072 1073 req = xfer->frbuffers[0].buffer; 1074 1075 error = copyin(fs_ep.pLength, 1076 &length, sizeof(length)); 1077 if (error) { 1078 return (error); 1079 } 1080 if (length >= sizeof(*req)) { 1081 xfer->error = USB_ERR_INVAL; 1082 goto complete; 1083 } 1084 if (length != 0) { 1085 error = copyin(uaddr, req, length); 1086 if (error) { 1087 return (error); 1088 } 1089 } 1090 if (ugen_check_request(f->udev, req)) { 1091 xfer->error = USB_ERR_INVAL; 1092 goto complete; 1093 } 1094 xfer->frlengths[0] = length; 1095 1096 /* Host mode only ! */ 1097 if ((req->bmRequestType & 1098 (UT_READ | UT_WRITE)) == UT_READ) { 1099 isread = 1; 1100 } else { 1101 isread = 0; 1102 } 1103 n = 1; 1104 offset = sizeof(*req); 1105 1106 } else { 1107 /* Device and Host mode */ 1108 if (USB_GET_DATA_ISREAD(xfer)) { 1109 isread = 1; 1110 } else { 1111 isread = 0; 1112 } 1113 n = 0; 1114 offset = 0; 1115 } 1116 1117 rem = xfer->max_data_length; 1118 xfer->nframes = fs_ep.nFrames; 1119 xfer->timeout = fs_ep.timeout; 1120 if (xfer->timeout > 65535) { 1121 xfer->timeout = 65535; 1122 } 1123 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK) 1124 xfer->flags.short_xfer_ok = 1; 1125 else 1126 xfer->flags.short_xfer_ok = 0; 1127 1128 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK) 1129 xfer->flags.short_frames_ok = 1; 1130 else 1131 xfer->flags.short_frames_ok = 0; 1132 1133 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT) 1134 xfer->flags.force_short_xfer = 1; 1135 else 1136 xfer->flags.force_short_xfer = 0; 1137 1138 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL) 1139 xfer->flags.stall_pipe = 1; 1140 else 1141 xfer->flags.stall_pipe = 0; 1142 1143 for (; n != xfer->nframes; n++) { 1144 1145 error = copyin(fs_ep.pLength + n, 1146 &length, sizeof(length)); 1147 if (error) { 1148 break; 1149 } 1150 xfer->frlengths[n] = length; 1151 1152 if (length > rem) { 1153 xfer->error = USB_ERR_INVAL; 1154 goto complete; 1155 } 1156 rem -= length; 1157 1158 if (!isread) { 1159 1160 /* we need to know the source buffer */ 1161 error = copyin(fs_ep.ppBuffer + n, 1162 &uaddr, sizeof(uaddr)); 1163 if (error) { 1164 break; 1165 } 1166 if (xfer->flags_int.isochronous_xfr) { 1167 /* get kernel buffer address */ 1168 kaddr = xfer->frbuffers[0].buffer; 1169 kaddr = USB_ADD_BYTES(kaddr, offset); 1170 } else { 1171 /* set current frame offset */ 1172 usb2_set_frame_offset(xfer, offset, n); 1173 1174 /* get kernel buffer address */ 1175 kaddr = xfer->frbuffers[n].buffer; 1176 } 1177 1178 /* move data */ 1179 error = copyin(uaddr, kaddr, length); 1180 if (error) { 1181 break; 1182 } 1183 } 1184 offset += length; 1185 } 1186 return (error); 1187 1188complete: 1189 mtx_lock(f->priv_mtx); 1190 ugen_fs_set_complete(f, ep_index); 1191 mtx_unlock(f->priv_mtx); 1192 return (0); 1193} 1194 1195static int 1196ugen_fs_copy_out(struct usb2_fifo *f, uint8_t ep_index) 1197{ 1198 struct usb2_device_request *req; 1199 struct usb2_xfer *xfer; 1200 struct usb2_fs_endpoint fs_ep; 1201 struct usb2_fs_endpoint *fs_ep_uptr; /* userland ptr */ 1202 void *uaddr; /* userland ptr */ 1203 void *kaddr; 1204 uint32_t offset; 1205 uint32_t length; 1206 uint32_t temp; 1207 uint32_t n; 1208 uint32_t rem; 1209 int error; 1210 uint8_t isread; 1211 1212 if (ep_index >= f->fs_ep_max) { 1213 return (EINVAL); 1214 } 1215 xfer = f->fs_xfer[ep_index]; 1216 if (xfer == NULL) { 1217 return (EINVAL); 1218 } 1219 mtx_lock(f->priv_mtx); 1220 if (usb2_transfer_pending(xfer)) { 1221 mtx_unlock(f->priv_mtx); 1222 return (EBUSY); /* should not happen */ 1223 } 1224 mtx_unlock(f->priv_mtx); 1225 1226 fs_ep_uptr = f->fs_ep_ptr + ep_index; 1227 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep)); 1228 if (error) { 1229 return (error); 1230 } 1231 fs_ep.status = xfer->error; 1232 fs_ep.aFrames = xfer->aframes; 1233 fs_ep.isoc_time_complete = xfer->isoc_time_complete; 1234 if (xfer->error) { 1235 goto complete; 1236 } 1237 if (xfer->flags_int.control_xfr) { 1238 req = xfer->frbuffers[0].buffer; 1239 1240 /* Host mode only ! */ 1241 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) { 1242 isread = 1; 1243 } else { 1244 isread = 0; 1245 } 1246 if (xfer->nframes == 0) 1247 n = 0; /* should never happen */ 1248 else 1249 n = 1; 1250 } else { 1251 /* Device and Host mode */ 1252 if (USB_GET_DATA_ISREAD(xfer)) { 1253 isread = 1; 1254 } else { 1255 isread = 0; 1256 } 1257 n = 0; 1258 } 1259 1260 /* Update lengths and copy out data */ 1261 1262 rem = xfer->max_data_length; 1263 offset = 0; 1264 1265 for (; n != xfer->nframes; n++) { 1266 1267 /* get initial length into "temp" */ 1268 error = copyin(fs_ep.pLength + n, 1269 &temp, sizeof(temp)); 1270 if (error) { 1271 return (error); 1272 } 1273 if (temp > rem) { 1274 /* the userland length has been corrupted */ 1275 DPRINTF("corrupt userland length " 1276 "%u > %u\n", temp, rem); 1277 fs_ep.status = USB_ERR_INVAL; 1278 goto complete; 1279 } 1280 rem -= temp; 1281 1282 /* get actual transfer length */ 1283 length = xfer->frlengths[n]; 1284 if (length > temp) { 1285 /* data overflow */ 1286 fs_ep.status = USB_ERR_INVAL; 1287 DPRINTF("data overflow %u > %u\n", 1288 length, temp); 1289 goto complete; 1290 } 1291 if (isread) { 1292 1293 /* we need to know the destination buffer */ 1294 error = copyin(fs_ep.ppBuffer + n, 1295 &uaddr, sizeof(uaddr)); 1296 if (error) { 1297 return (error); 1298 } 1299 if (xfer->flags_int.isochronous_xfr) { 1300 /* only one frame buffer */ 1301 kaddr = USB_ADD_BYTES( 1302 xfer->frbuffers[0].buffer, offset); 1303 } else { 1304 /* multiple frame buffers */ 1305 kaddr = xfer->frbuffers[n].buffer; 1306 } 1307 1308 /* move data */ 1309 error = copyout(kaddr, uaddr, length); 1310 if (error) { 1311 return (error); 1312 } 1313 } 1314 /* 1315 * Update offset according to initial length, which is 1316 * needed by isochronous transfers! 1317 */ 1318 offset += temp; 1319 1320 /* update length */ 1321 error = copyout(&length, 1322 fs_ep.pLength + n, sizeof(length)); 1323 if (error) { 1324 return (error); 1325 } 1326 } 1327 1328complete: 1329 /* update "aFrames" */ 1330 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames, 1331 sizeof(fs_ep.aFrames)); 1332 if (error) 1333 goto done; 1334 1335 /* update "isoc_time_complete" */ 1336 error = copyout(&fs_ep.isoc_time_complete, 1337 &fs_ep_uptr->isoc_time_complete, 1338 sizeof(fs_ep.isoc_time_complete)); 1339 if (error) 1340 goto done; 1341 /* update "status" */ 1342 error = copyout(&fs_ep.status, &fs_ep_uptr->status, 1343 sizeof(fs_ep.status)); 1344done: 1345 return (error); 1346} 1347 1348static uint8_t 1349ugen_fifo_in_use(struct usb2_fifo *f, int fflags) 1350{ 1351 struct usb2_fifo *f_rx; 1352 struct usb2_fifo *f_tx; 1353 1354 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1355 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1356 1357 if ((fflags & FREAD) && f_rx && 1358 (f_rx->xfer[0] || f_rx->xfer[1])) { 1359 return (1); /* RX FIFO in use */ 1360 } 1361 if ((fflags & FWRITE) && f_tx && 1362 (f_tx->xfer[0] || f_tx->xfer[1])) { 1363 return (1); /* TX FIFO in use */ 1364 } 1365 return (0); /* not in use */ 1366} 1367 1368static int 1369ugen_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags, 1370 struct thread *td) 1371{ 1372 struct usb2_config usb2_config[1]; 1373 struct usb2_device_request req; 1374 union { 1375 struct usb2_fs_complete *pcomp; 1376 struct usb2_fs_start *pstart; 1377 struct usb2_fs_stop *pstop; 1378 struct usb2_fs_open *popen; 1379 struct usb2_fs_close *pclose; 1380 struct usb2_fs_clear_stall_sync *pstall; 1381 void *addr; 1382 } u; 1383 struct usb2_pipe *pipe; 1384 struct usb2_endpoint_descriptor *ed; 1385 int error = 0; 1386 uint8_t iface_index; 1387 uint8_t isread; 1388 uint8_t ep_index; 1389 1390 u.addr = addr; 1391 1392 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1393 1394 switch (cmd) { 1395 case USB_FS_COMPLETE: 1396 mtx_lock(f->priv_mtx); 1397 error = ugen_fs_get_complete(f, &ep_index); 1398 mtx_unlock(f->priv_mtx); 1399 1400 if (error) { 1401 error = EBUSY; 1402 break; 1403 } 1404 u.pcomp->ep_index = ep_index; 1405 error = ugen_fs_copy_out(f, u.pcomp->ep_index); 1406 break; 1407 1408 case USB_FS_START: 1409 error = ugen_fs_copy_in(f, u.pstart->ep_index); 1410 if (error) { 1411 break; 1412 } 1413 mtx_lock(f->priv_mtx); 1414 usb2_transfer_start(f->fs_xfer[u.pstart->ep_index]); 1415 mtx_unlock(f->priv_mtx); 1416 break; 1417 1418 case USB_FS_STOP: 1419 if (u.pstop->ep_index >= f->fs_ep_max) { 1420 error = EINVAL; 1421 break; 1422 } 1423 mtx_lock(f->priv_mtx); 1424 usb2_transfer_stop(f->fs_xfer[u.pstop->ep_index]); 1425 mtx_unlock(f->priv_mtx); 1426 break; 1427 1428 case USB_FS_OPEN: 1429 if (u.popen->ep_index >= f->fs_ep_max) { 1430 error = EINVAL; 1431 break; 1432 } 1433 if (f->fs_xfer[u.popen->ep_index] != NULL) { 1434 error = EBUSY; 1435 break; 1436 } 1437 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) { 1438 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE; 1439 } 1440 if (u.popen->max_frames > USB_FS_MAX_FRAMES) { 1441 u.popen->max_frames = USB_FS_MAX_FRAMES; 1442 break; 1443 } 1444 if (u.popen->max_frames == 0) { 1445 error = EINVAL; 1446 break; 1447 } 1448 pipe = usb2_get_pipe_by_addr(f->udev, u.popen->ep_no); 1449 if (pipe == NULL) { 1450 error = EINVAL; 1451 break; 1452 } 1453 ed = pipe->edesc; 1454 if (ed == NULL) { 1455 error = ENXIO; 1456 break; 1457 } 1458 iface_index = pipe->iface_index; 1459 1460 error = usb2_check_thread_perm(f->udev, curthread, fflags, 1461 iface_index, u.popen->ep_no); 1462 if (error) { 1463 break; 1464 } 1465 bzero(usb2_config, sizeof(usb2_config)); 1466 1467 usb2_config[0].type = ed->bmAttributes & UE_XFERTYPE; 1468 usb2_config[0].endpoint = ed->bEndpointAddress & UE_ADDR; 1469 usb2_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN); 1470 usb2_config[0].mh.interval = USB_DEFAULT_INTERVAL; 1471 usb2_config[0].mh.flags.proxy_buffer = 1; 1472 usb2_config[0].mh.callback = &ugen_default_fs_callback; 1473 usb2_config[0].mh.timeout = 0; /* no timeout */ 1474 usb2_config[0].mh.frames = u.popen->max_frames; 1475 usb2_config[0].mh.bufsize = u.popen->max_bufsize; 1476 usb2_config[0].md = usb2_config[0].mh; /* symmetric config */ 1477 1478 if (usb2_config[0].type == UE_CONTROL) { 1479 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1480 error = EINVAL; 1481 break; 1482 } 1483 } else { 1484 1485 isread = ((usb2_config[0].endpoint & 1486 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN); 1487 1488 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1489 isread = !isread; 1490 } 1491 /* check permissions */ 1492 if (isread) { 1493 if (!(fflags & FREAD)) { 1494 error = EPERM; 1495 break; 1496 } 1497 } else { 1498 if (!(fflags & FWRITE)) { 1499 error = EPERM; 1500 break; 1501 } 1502 } 1503 } 1504 error = usb2_transfer_setup(f->udev, &iface_index, 1505 f->fs_xfer + u.popen->ep_index, usb2_config, 1, 1506 f, f->priv_mtx); 1507 if (error == 0) { 1508 /* update maximums */ 1509 u.popen->max_packet_length = 1510 f->fs_xfer[u.popen->ep_index]->max_frame_size; 1511 u.popen->max_bufsize = 1512 f->fs_xfer[u.popen->ep_index]->max_data_length; 1513 f->fs_xfer[u.popen->ep_index]->priv_fifo = 1514 ((uint8_t *)0) + u.popen->ep_index; 1515 } else { 1516 error = ENOMEM; 1517 } 1518 break; 1519 1520 case USB_FS_CLOSE: 1521 if (u.pclose->ep_index >= f->fs_ep_max) { 1522 error = EINVAL; 1523 break; 1524 } 1525 if (f->fs_xfer[u.pclose->ep_index] == NULL) { 1526 error = EINVAL; 1527 break; 1528 } 1529 usb2_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1); 1530 break; 1531 1532 case USB_FS_CLEAR_STALL_SYNC: 1533 if (u.pstall->ep_index >= f->fs_ep_max) { 1534 error = EINVAL; 1535 break; 1536 } 1537 if (f->fs_xfer[u.pstall->ep_index] == NULL) { 1538 error = EINVAL; 1539 break; 1540 } 1541 if (f->udev->flags.usb2_mode != USB_MODE_HOST) { 1542 error = EINVAL; 1543 break; 1544 } 1545 mtx_lock(f->priv_mtx); 1546 error = usb2_transfer_pending(f->fs_xfer[u.pstall->ep_index]); 1547 mtx_unlock(f->priv_mtx); 1548 1549 if (error) { 1550 return (EBUSY); 1551 } 1552 pipe = f->fs_xfer[u.pstall->ep_index]->pipe; 1553 1554 /* setup a clear-stall packet */ 1555 req.bmRequestType = UT_WRITE_ENDPOINT; 1556 req.bRequest = UR_CLEAR_FEATURE; 1557 USETW(req.wValue, UF_ENDPOINT_HALT); 1558 req.wIndex[0] = pipe->edesc->bEndpointAddress; 1559 req.wIndex[1] = 0; 1560 USETW(req.wLength, 0); 1561 1562 error = usb2_do_request(f->udev, NULL, &req, NULL); 1563 if (error == 0) { 1564 usb2_clear_data_toggle(f->udev, pipe); 1565 } else { 1566 error = ENXIO; 1567 } 1568 break; 1569 1570 default: 1571 error = ENOIOCTL; 1572 break; 1573 } 1574 1575 DPRINTFN(6, "error=%d\n", error); 1576 1577 return (error); 1578} 1579 1580static int 1581ugen_set_short_xfer(struct usb2_fifo *f, void *addr) 1582{ 1583 uint8_t t; 1584 1585 if (*(int *)addr) 1586 t = 1; 1587 else 1588 t = 0; 1589 1590 if (f->flag_short == t) { 1591 /* same value like before - accept */ 1592 return (0); 1593 } 1594 if (f->xfer[0] || f->xfer[1]) { 1595 /* cannot change this during transfer */ 1596 return (EBUSY); 1597 } 1598 f->flag_short = t; 1599 return (0); 1600} 1601 1602static int 1603ugen_set_timeout(struct usb2_fifo *f, void *addr) 1604{ 1605 f->timeout = *(int *)addr; 1606 if (f->timeout > 65535) { 1607 /* limit user input */ 1608 f->timeout = 65535; 1609 } 1610 return (0); 1611} 1612 1613static int 1614ugen_get_frame_size(struct usb2_fifo *f, void *addr) 1615{ 1616 if (f->xfer[0]) { 1617 *(int *)addr = f->xfer[0]->max_frame_size; 1618 } else { 1619 return (EINVAL); 1620 } 1621 return (0); 1622} 1623 1624static int 1625ugen_set_buffer_size(struct usb2_fifo *f, void *addr) 1626{ 1627 uint32_t t; 1628 1629 if (*(int *)addr < 1024) 1630 t = 1024; 1631 else if (*(int *)addr < (256 * 1024)) 1632 t = *(int *)addr; 1633 else 1634 t = 256 * 1024; 1635 1636 if (f->bufsize == t) { 1637 /* same value like before - accept */ 1638 return (0); 1639 } 1640 if (f->xfer[0] || f->xfer[1]) { 1641 /* cannot change this during transfer */ 1642 return (EBUSY); 1643 } 1644 f->bufsize = t; 1645 return (0); 1646} 1647 1648static int 1649ugen_get_buffer_size(struct usb2_fifo *f, void *addr) 1650{ 1651 *(int *)addr = f->bufsize; 1652 return (0); 1653} 1654 1655static int 1656ugen_get_iface_desc(struct usb2_fifo *f, 1657 struct usb2_interface_descriptor *idesc) 1658{ 1659 struct usb2_interface *iface; 1660 1661 iface = usb2_get_iface(f->udev, f->iface_index); 1662 if (iface && iface->idesc) { 1663 *idesc = *(iface->idesc); 1664 } else { 1665 return (EIO); 1666 } 1667 return (0); 1668} 1669 1670static int 1671ugen_get_endpoint_desc(struct usb2_fifo *f, 1672 struct usb2_endpoint_descriptor *ed) 1673{ 1674 struct usb2_pipe *pipe; 1675 1676 pipe = f->priv_sc0; 1677 1678 if (pipe && pipe->edesc) { 1679 *ed = *pipe->edesc; 1680 } else { 1681 return (EINVAL); 1682 } 1683 return (0); 1684} 1685 1686static int 1687ugen_set_power_mode(struct usb2_fifo *f, int mode) 1688{ 1689 struct usb2_device *udev = f->udev; 1690 int err; 1691 1692 if ((udev == NULL) || 1693 (udev->parent_hub == NULL)) { 1694 return (EINVAL); 1695 } 1696 err = priv_check(curthread, PRIV_ROOT); 1697 if (err) { 1698 return (err); 1699 } 1700 switch (mode) { 1701 case USB_POWER_MODE_OFF: 1702 /* clear suspend */ 1703 err = usb2_req_clear_port_feature(udev->parent_hub, 1704 NULL, udev->port_no, UHF_PORT_SUSPEND); 1705 if (err) 1706 break; 1707 1708 /* clear port enable */ 1709 err = usb2_req_clear_port_feature(udev->parent_hub, 1710 NULL, udev->port_no, UHF_PORT_ENABLE); 1711 break; 1712 1713 case USB_POWER_MODE_ON: 1714 case USB_POWER_MODE_SAVE: 1715 break; 1716 1717 case USB_POWER_MODE_RESUME: 1718 err = usb2_req_clear_port_feature(udev->parent_hub, 1719 NULL, udev->port_no, UHF_PORT_SUSPEND); 1720 mode = USB_POWER_MODE_SAVE; 1721 break; 1722 1723 case USB_POWER_MODE_SUSPEND: 1724 err = usb2_req_set_port_feature(udev->parent_hub, 1725 NULL, udev->port_no, UHF_PORT_SUSPEND); 1726 mode = USB_POWER_MODE_SAVE; 1727 break; 1728 1729 default: 1730 return (EINVAL); 1731 } 1732 1733 if (err) 1734 return (ENXIO); /* I/O failure */ 1735 1736 /* set new power mode */ 1737 usb2_set_power_mode(udev, mode); 1738 1739 return (0); /* success */ 1740} 1741 1742static int 1743ugen_get_power_mode(struct usb2_fifo *f) 1744{ 1745 struct usb2_device *udev = f->udev; 1746 1747 if ((udev == NULL) || 1748 (udev->parent_hub == NULL)) { 1749 return (USB_POWER_MODE_ON); 1750 } 1751 return (udev->power_mode); 1752} 1753 1754static int 1755ugen_do_port_feature(struct usb2_fifo *f, uint8_t port_no, 1756 uint8_t set, uint16_t feature) 1757{ 1758 struct usb2_device *udev = f->udev; 1759 struct usb2_hub *hub; 1760 int err; 1761 1762 err = priv_check(curthread, PRIV_ROOT); 1763 if (err) { 1764 return (err); 1765 } 1766 if (port_no == 0) { 1767 return (EINVAL); 1768 } 1769 if ((udev == NULL) || 1770 (udev->hub == NULL)) { 1771 return (EINVAL); 1772 } 1773 hub = udev->hub; 1774 1775 if (port_no > hub->nports) { 1776 return (EINVAL); 1777 } 1778 if (set) 1779 err = usb2_req_set_port_feature(udev, 1780 NULL, port_no, feature); 1781 else 1782 err = usb2_req_clear_port_feature(udev, 1783 NULL, port_no, feature); 1784 1785 if (err) 1786 return (ENXIO); /* failure */ 1787 1788 return (0); /* success */ 1789} 1790 1791static int 1792ugen_iface_ioctl(struct usb2_fifo *f, u_long cmd, void *addr, int fflags) 1793{ 1794 struct usb2_fifo *f_rx; 1795 struct usb2_fifo *f_tx; 1796 int error = 0; 1797 1798 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX]; 1799 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX]; 1800 1801 switch (cmd) { 1802 case USB_SET_RX_SHORT_XFER: 1803 if (fflags & FREAD) { 1804 error = ugen_set_short_xfer(f_rx, addr); 1805 } else { 1806 error = EINVAL; 1807 } 1808 break; 1809 1810 case USB_SET_TX_FORCE_SHORT: 1811 if (fflags & FWRITE) { 1812 error = ugen_set_short_xfer(f_tx, addr); 1813 } else { 1814 error = EINVAL; 1815 } 1816 break; 1817 1818 case USB_SET_RX_TIMEOUT: 1819 if (fflags & FREAD) { 1820 error = ugen_set_timeout(f_rx, addr); 1821 } else { 1822 error = EINVAL; 1823 } 1824 break; 1825 1826 case USB_SET_TX_TIMEOUT: 1827 if (fflags & FWRITE) { 1828 error = ugen_set_timeout(f_tx, addr); 1829 } else { 1830 error = EINVAL; 1831 } 1832 break; 1833 1834 case USB_GET_RX_FRAME_SIZE: 1835 if (fflags & FREAD) { 1836 error = ugen_get_frame_size(f_rx, addr); 1837 } else { 1838 error = EINVAL; 1839 } 1840 break; 1841 1842 case USB_GET_TX_FRAME_SIZE: 1843 if (fflags & FWRITE) { 1844 error = ugen_get_frame_size(f_tx, addr); 1845 } else { 1846 error = EINVAL; 1847 } 1848 break; 1849 1850 case USB_SET_RX_BUFFER_SIZE: 1851 if (fflags & FREAD) { 1852 error = ugen_set_buffer_size(f_rx, addr); 1853 } else { 1854 error = EINVAL; 1855 } 1856 break; 1857 1858 case USB_SET_TX_BUFFER_SIZE: 1859 if (fflags & FWRITE) { 1860 error = ugen_set_buffer_size(f_tx, addr); 1861 } else { 1862 error = EINVAL; 1863 } 1864 break; 1865 1866 case USB_GET_RX_BUFFER_SIZE: 1867 if (fflags & FREAD) { 1868 error = ugen_get_buffer_size(f_rx, addr); 1869 } else { 1870 error = EINVAL; 1871 } 1872 break; 1873 1874 case USB_GET_TX_BUFFER_SIZE: 1875 if (fflags & FWRITE) { 1876 error = ugen_get_buffer_size(f_tx, addr); 1877 } else { 1878 error = EINVAL; 1879 } 1880 break; 1881 1882 case USB_GET_RX_INTERFACE_DESC: 1883 if (fflags & FREAD) { 1884 error = ugen_get_iface_desc(f_rx, addr); 1885 } else { 1886 error = EINVAL; 1887 } 1888 break; 1889 1890 case USB_GET_TX_INTERFACE_DESC: 1891 if (fflags & FWRITE) { 1892 error = ugen_get_iface_desc(f_tx, addr); 1893 } else { 1894 error = EINVAL; 1895 } 1896 break; 1897 1898 case USB_GET_RX_ENDPOINT_DESC: 1899 if (fflags & FREAD) { 1900 error = ugen_get_endpoint_desc(f_rx, addr); 1901 } else { 1902 error = EINVAL; 1903 } 1904 break; 1905 1906 case USB_GET_TX_ENDPOINT_DESC: 1907 if (fflags & FWRITE) { 1908 error = ugen_get_endpoint_desc(f_tx, addr); 1909 } else { 1910 error = EINVAL; 1911 } 1912 break; 1913 1914 case USB_SET_RX_STALL_FLAG: 1915 if ((fflags & FREAD) && (*(int *)addr)) { 1916 f_rx->flag_stall = 1; 1917 } 1918 break; 1919 1920 case USB_SET_TX_STALL_FLAG: 1921 if ((fflags & FWRITE) && (*(int *)addr)) { 1922 f_tx->flag_stall = 1; 1923 } 1924 break; 1925 1926 default: 1927 error = ENOIOCTL; 1928 break; 1929 } 1930 return (error); 1931} 1932 1933static int 1934ugen_ioctl_post(struct usb2_fifo *f, u_long cmd, void *addr, int fflags, 1935 struct thread *td) 1936{ 1937 union { 1938 struct usb2_interface_descriptor *idesc; 1939 struct usb2_alt_interface *ai; 1940 struct usb2_device_descriptor *ddesc; 1941 struct usb2_config_descriptor *cdesc; 1942 struct usb2_device_stats *stat; 1943 struct usb2_fs_init *pinit; 1944 struct usb2_fs_uninit *puninit; 1945 uint32_t *ptime; 1946 void *addr; 1947 int *pint; 1948 } u; 1949 struct usb2_device_descriptor *dtemp; 1950 struct usb2_config_descriptor *ctemp; 1951 struct usb2_interface *iface; 1952 int error = 0; 1953 uint8_t n; 1954 1955 u.addr = addr; 1956 1957 DPRINTFN(6, "cmd=0x%08lx\n", cmd); 1958 1959 switch (cmd) { 1960 case USB_DISCOVER: 1961 usb2_needs_explore_all(); 1962 break; 1963 1964 case USB_SETDEBUG: 1965 if (!(fflags & FWRITE)) { 1966 error = EPERM; 1967 break; 1968 } 1969 usb2_debug = *(int *)addr; 1970 break; 1971 1972 case USB_GET_CONFIG: 1973 *(int *)addr = f->udev->curr_config_index; 1974 break; 1975 1976 case USB_SET_CONFIG: 1977 if (!(fflags & FWRITE)) { 1978 error = EPERM; 1979 break; 1980 } 1981 error = ugen_set_config(f, *(int *)addr); 1982 break; 1983 1984 case USB_GET_ALTINTERFACE: 1985 iface = usb2_get_iface(f->udev, 1986 u.ai->uai_interface_index); 1987 if (iface && iface->idesc) { 1988 u.ai->uai_alt_index = iface->alt_index; 1989 } else { 1990 error = EINVAL; 1991 } 1992 break; 1993 1994 case USB_SET_ALTINTERFACE: 1995 if (!(fflags & FWRITE)) { 1996 error = EPERM; 1997 break; 1998 } 1999 error = ugen_set_interface(f, 2000 u.ai->uai_interface_index, u.ai->uai_alt_index); 2001 break; 2002 2003 case USB_GET_DEVICE_DESC: 2004 dtemp = usb2_get_device_descriptor(f->udev); 2005 if (!dtemp) { 2006 error = EIO; 2007 break; 2008 } 2009 *u.ddesc = *dtemp; 2010 break; 2011 2012 case USB_GET_CONFIG_DESC: 2013 ctemp = usb2_get_config_descriptor(f->udev); 2014 if (!ctemp) { 2015 error = EIO; 2016 break; 2017 } 2018 *u.cdesc = *ctemp; 2019 break; 2020 2021 case USB_GET_FULL_DESC: 2022 error = ugen_get_cdesc(f, addr); 2023 break; 2024 2025 case USB_GET_STRING_DESC: 2026 error = ugen_get_sdesc(f, addr); 2027 break; 2028 2029 case USB_REQUEST: 2030 case USB_DO_REQUEST: 2031 if (!(fflags & FWRITE)) { 2032 error = EPERM; 2033 break; 2034 } 2035 error = ugen_do_request(f, addr); 2036 break; 2037 2038 case USB_DEVICEINFO: 2039 case USB_GET_DEVICEINFO: 2040 error = usb2_gen_fill_deviceinfo(f, addr); 2041 break; 2042 2043 case USB_GET_DEVICENAMES: 2044 error = usb2_gen_fill_devicenames(f, addr); 2045 break; 2046 2047 case USB_DEVICESTATS: 2048 for (n = 0; n != 4; n++) { 2049 2050 u.stat->uds_requests_fail[n] = 2051 f->udev->bus->stats_err.uds_requests[n]; 2052 2053 u.stat->uds_requests_ok[n] = 2054 f->udev->bus->stats_ok.uds_requests[n]; 2055 } 2056 break; 2057 2058 case USB_DEVICEENUMERATE: 2059 error = ugen_re_enumerate(f); 2060 break; 2061 2062 case USB_GET_PLUGTIME: 2063 *u.ptime = f->udev->plugtime; 2064 break; 2065 2066 case USB_CLAIM_INTERFACE: 2067 case USB_RELEASE_INTERFACE: 2068 /* TODO */ 2069 break; 2070 2071 case USB_IFACE_DRIVER_ACTIVE: 2072 /* TODO */ 2073 *u.pint = 0; 2074 break; 2075 2076 case USB_IFACE_DRIVER_DETACH: 2077 /* TODO */ 2078 error = priv_check(curthread, PRIV_DRIVER); 2079 if (error) { 2080 break; 2081 } 2082 error = EINVAL; 2083 break; 2084 2085 case USB_SET_POWER_MODE: 2086 error = ugen_set_power_mode(f, *u.pint); 2087 break; 2088 2089 case USB_GET_POWER_MODE: 2090 *u.pint = ugen_get_power_mode(f); 2091 break; 2092 2093 case USB_SET_PORT_ENABLE: 2094 error = ugen_do_port_feature(f, 2095 *u.pint, 1, UHF_PORT_ENABLE); 2096 break; 2097 2098 case USB_SET_PORT_DISABLE: 2099 error = ugen_do_port_feature(f, 2100 *u.pint, 0, UHF_PORT_ENABLE); 2101 break; 2102 2103 case USB_FS_INIT: 2104 /* verify input parameters */ 2105 if (u.pinit->pEndpoints == NULL) { 2106 error = EINVAL; 2107 break; 2108 } 2109 if (u.pinit->ep_index_max > 127) { 2110 error = EINVAL; 2111 break; 2112 } 2113 if (u.pinit->ep_index_max == 0) { 2114 error = EINVAL; 2115 break; 2116 } 2117 if (f->fs_xfer != NULL) { 2118 error = EBUSY; 2119 break; 2120 } 2121 if (f->dev_ep_index != 0) { 2122 error = EINVAL; 2123 break; 2124 } 2125 if (ugen_fifo_in_use(f, fflags)) { 2126 error = EBUSY; 2127 break; 2128 } 2129 error = usb2_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max); 2130 if (error) { 2131 break; 2132 } 2133 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) * 2134 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO); 2135 if (f->fs_xfer == NULL) { 2136 usb2_fifo_free_buffer(f); 2137 error = ENOMEM; 2138 break; 2139 } 2140 f->fs_ep_max = u.pinit->ep_index_max; 2141 f->fs_ep_ptr = u.pinit->pEndpoints; 2142 break; 2143 2144 case USB_FS_UNINIT: 2145 if (u.puninit->dummy != 0) { 2146 error = EINVAL; 2147 break; 2148 } 2149 error = ugen_fs_uninit(f); 2150 break; 2151 2152 default: 2153 mtx_lock(f->priv_mtx); 2154 error = ugen_iface_ioctl(f, cmd, addr, fflags); 2155 mtx_unlock(f->priv_mtx); 2156 break; 2157 } 2158 DPRINTFN(6, "error=%d\n", error); 2159 return (error); 2160} 2161 2162static void 2163ugen_default_fs_callback(struct usb2_xfer *xfer) 2164{ 2165 ; /* workaround for a bug in "indent" */ 2166 2167 DPRINTF("st=%u alen=%u aframes=%u\n", 2168 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes); 2169 2170 switch (USB_GET_STATE(xfer)) { 2171 case USB_ST_SETUP: 2172 usb2_start_hardware(xfer); 2173 break; 2174 default: 2175 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo)); 2176 break; 2177 } 2178} 2179