ustir.c revision 1.4
1 /* $NetBSD: ustir.c,v 1.4 2002/10/23 09:14:03 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by David Sainty <David.Sainty (at) dtsp.co.nz> 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: ustir.c,v 1.4 2002/10/23 09:14:03 jdolecek Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/device.h> 46 #include <sys/malloc.h> 47 #include <sys/conf.h> 48 #include <sys/file.h> 49 #include <sys/poll.h> 50 #include <sys/select.h> 51 #include <sys/proc.h> 52 #include <sys/kthread.h> 53 54 #ifdef USTIR_DEBUG_IOCTLS 55 #include <sys/ioctl.h> 56 #include <dev/usb/ustir.h> 57 #endif 58 59 #include <dev/usb/usb.h> 60 #include <dev/usb/usbdevs.h> 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdi_util.h> 63 #include <dev/usb/ustirreg.h> 64 65 #include <dev/ir/ir.h> 66 #include <dev/ir/irdaio.h> 67 #include <dev/ir/irframevar.h> 68 #include <dev/ir/sir.h> 69 70 #ifdef USTIR_DEBUG 71 #define DPRINTFN(n,x) if (ustirdebug>(n)) logprintf x 72 int ustirdebug = 0; 73 #else 74 #define DPRINTFN(n,x) 75 #endif 76 77 /* Max size with framing. */ 78 #define MAX_USTIR_OUTPUT_FRAME (2*IRDA_MAX_FRAME_SIZE + IRDA_MAX_EBOFS + STIR_OUTPUT_HEADER_SIZE + 4) 79 80 #define USTIR_NSPEEDS 9 81 struct ustir_speedrec { 82 unsigned int speed; 83 unsigned int config; 84 }; 85 86 Static struct ustir_speedrec const ustir_speeds[USTIR_NSPEEDS] = { 87 { 4000000, STIR_BRMODE_4000000 }, 88 { 1152000, STIR_BRMODE_1152000 }, 89 { 576000, STIR_BRMODE_576000 }, 90 { 115200, STIR_BRMODE_115200 }, 91 { 57600, STIR_BRMODE_57600 }, 92 { 38400, STIR_BRMODE_38400 }, 93 { 19200, STIR_BRMODE_19200 }, 94 { 9600, STIR_BRMODE_9600 }, 95 { 2400, STIR_BRMODE_2400 } 96 }; 97 98 struct framedefn { 99 unsigned int bof_count; 100 u_int8_t bof_byte; 101 102 u_int8_t esc_byte; 103 u_int8_t esc_xor; 104 105 unsigned int eof_count; 106 u_int8_t eof_byte; 107 108 unsigned int fcs_count; 109 u_int32_t fcs_init; 110 u_int32_t fcs_correct; 111 112 u_int32_t (*fcs_calc)(u_int32_t, u_int8_t const*, size_t); 113 }; 114 115 Static u_int32_t crc_ccitt_16(u_int32_t, u_int8_t const*, size_t); 116 117 struct framedefn const framedef_sir = { 118 1, 0xc0, 119 0x7d, 0x20, 120 1, 0xc1, 121 2, INITFCS, GOODFCS, 122 crc_ccitt_16 123 }; 124 125 enum framefsmstate { 126 FSTATE_END_OF_FRAME, 127 FSTATE_START_OF_FRAME, 128 FSTATE_IN_DATA, 129 FSTATE_IN_END 130 }; 131 132 enum frameresult { 133 FR_IDLE, 134 FR_INPROGRESS, 135 FR_FRAMEOK, 136 FR_FRAMEBADFCS, 137 FR_FRAMEMALFORMED, 138 FR_BUFFEROVERRUN 139 }; 140 141 struct framestate { 142 struct framedefn const *definition; 143 144 u_int8_t *buffer; 145 size_t buflen; 146 size_t bufindex; 147 148 enum framefsmstate fsmstate; 149 u_int escaped; 150 u_int state_index; 151 }; 152 153 #define deframe_isclear(fs) ((fs)->fsmstate == FSTATE_END_OF_FRAME) 154 155 Static void deframe_clear(struct framestate *); 156 Static void deframe_init(struct framestate *, struct framedefn const *, 157 u_int8_t *, size_t); 158 Static enum frameresult deframe_process(struct framestate *, u_int8_t const **, 159 size_t *); 160 161 struct ustir_softc { 162 USBBASEDEVICE sc_dev; 163 usbd_device_handle sc_udev; 164 usbd_interface_handle sc_iface; 165 166 u_int8_t *sc_ur_buf; /* Unencapsulated frame */ 167 u_int sc_ur_framelen; 168 169 u_int8_t *sc_rd_buf; /* Raw incoming data stream */ 170 size_t sc_rd_index; 171 int sc_rd_addr; 172 usbd_pipe_handle sc_rd_pipe; 173 usbd_xfer_handle sc_rd_xfer; 174 u_int sc_rd_count; 175 int sc_rd_readinprogress; 176 u_int sc_rd_expectdataticks; 177 u_char sc_rd_err; 178 struct framestate sc_framestate; 179 struct proc *sc_thread; 180 struct selinfo sc_rd_sel; 181 182 u_int8_t *sc_wr_buf; 183 int sc_wr_addr; 184 usbd_xfer_handle sc_wr_xfer; 185 usbd_pipe_handle sc_wr_pipe; 186 struct selinfo sc_wr_sel; 187 188 enum { 189 udir_input, /* Receiving data */ 190 udir_output, /* Transmitting data */ 191 udir_stalled, /* Error preventing data flow */ 192 udir_idle /* Neither receiving nor transmitting */ 193 } sc_direction; 194 195 struct ustir_speedrec const *sc_speedrec; 196 197 struct device *sc_child; 198 struct irda_params sc_params; 199 200 int sc_refcnt; 201 char sc_closing; 202 char sc_dying; 203 }; 204 205 /* True if we cannot safely read data from the device */ 206 #define USTIR_BLOCK_RX_DATA(sc) ((sc)->sc_ur_framelen != 0) 207 208 #define USTIR_WR_TIMEOUT 200 209 210 Static int ustir_activate(device_ptr_t self, enum devact act); 211 Static int ustir_open(void *h, int flag, int mode, usb_proc_ptr p); 212 Static int ustir_close(void *h, int flag, int mode, usb_proc_ptr p); 213 Static int ustir_read(void *h, struct uio *uio, int flag); 214 Static int ustir_write(void *h, struct uio *uio, int flag); 215 Static int ustir_set_params(void *h, struct irda_params *params); 216 Static int ustir_get_speeds(void *h, int *speeds); 217 Static int ustir_get_turnarounds(void *h, int *times); 218 Static int ustir_poll(void *h, int events, usb_proc_ptr p); 219 Static int ustir_kqfilter(void *h, struct knote *kn); 220 221 #ifdef USTIR_DEBUG_IOCTLS 222 Static int ustir_ioctl(void *h, u_long cmd, caddr_t addr, int flag, usb_proc_ptr p); 223 #endif 224 225 Static struct irframe_methods const ustir_methods = { 226 ustir_open, ustir_close, ustir_read, ustir_write, ustir_poll, 227 ustir_kqfilter, ustir_set_params, ustir_get_speeds, 228 ustir_get_turnarounds, 229 #ifdef USTIR_DEBUG_IOCTLS 230 ustir_ioctl 231 #endif 232 }; 233 234 Static void ustir_rd_cb(usbd_xfer_handle, usbd_private_handle, usbd_status); 235 Static usbd_status ustir_start_read(struct ustir_softc *); 236 Static void ustir_periodic(struct ustir_softc *); 237 Static void ustir_thread(void *); 238 239 Static u_int32_t 240 crc_ccitt_16(u_int32_t crcinit, u_int8_t const *buf, size_t blen) 241 { 242 while (blen-- > 0) { 243 u_int8_t chr; 244 chr = *buf++; 245 crcinit = updateFCS(crcinit, chr); 246 } 247 return crcinit; 248 } 249 250 static usbd_status 251 ustir_read_reg(struct ustir_softc *sc, unsigned int reg, u_int8_t *data) 252 { 253 usb_device_request_t req; 254 255 req.bmRequestType = UT_READ_VENDOR_DEVICE; 256 req.bRequest = STIR_CMD_READMULTIREG; 257 USETW(req.wValue, 0); 258 USETW(req.wIndex, reg); 259 USETW(req.wLength, 1); 260 261 return usbd_do_request(sc->sc_udev, &req, data); 262 } 263 264 static usbd_status 265 ustir_write_reg(struct ustir_softc *sc, unsigned int reg, u_int8_t data) 266 { 267 usb_device_request_t req; 268 269 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 270 req.bRequest = STIR_CMD_WRITESINGLEREG; 271 USETW(req.wValue, data); 272 USETW(req.wIndex, reg); 273 USETW(req.wLength, 0); 274 275 return usbd_do_request(sc->sc_udev, &req, NULL); 276 } 277 278 #ifdef USTIR_DEBUG 279 static void 280 ustir_dumpdata(char const *data, size_t dlen, char const *desc) 281 { 282 size_t bdindex; 283 printf("%s: (%lx)", desc, (unsigned long)dlen); 284 for (bdindex = 0; bdindex < dlen; bdindex++) 285 printf(" %02x", (unsigned int)(unsigned char)data[bdindex]); 286 printf("\n"); 287 } 288 #endif 289 290 USB_DECLARE_DRIVER(ustir); 291 292 USB_MATCH(ustir) 293 { 294 USB_MATCH_START(ustir, uaa); 295 296 DPRINTFN(50,("ustir_match\n")); 297 298 if (uaa->iface == NULL) 299 return UMATCH_NONE; 300 301 if (uaa->vendor == USB_VENDOR_SIGMATEL && 302 uaa->product == USB_PRODUCT_SIGMATEL_IRDA) 303 return UMATCH_VENDOR_PRODUCT; 304 305 return UMATCH_NONE; 306 } 307 308 USB_ATTACH(ustir) 309 { 310 USB_ATTACH_START(ustir, sc, uaa); 311 usbd_device_handle dev = uaa->device; 312 usbd_interface_handle iface = uaa->iface; 313 char devinfo[1024]; 314 usb_endpoint_descriptor_t *ed; 315 u_int8_t epcount; 316 int i; 317 struct ir_attach_args ia; 318 319 DPRINTFN(10,("ustir_attach: sc=%p\n", sc)); 320 321 usbd_devinfo(dev, 0, devinfo); 322 USB_ATTACH_SETUP; 323 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 324 325 sc->sc_udev = dev; 326 sc->sc_iface = iface; 327 328 epcount = 0; 329 (void)usbd_endpoint_count(iface, &epcount); 330 331 sc->sc_rd_addr = -1; 332 sc->sc_wr_addr = -1; 333 for (i = 0; i < epcount; i++) { 334 ed = usbd_interface2endpoint_descriptor(iface, i); 335 if (ed == NULL) { 336 printf("%s: couldn't get ep %d\n", 337 USBDEVNAME(sc->sc_dev), i); 338 USB_ATTACH_ERROR_RETURN; 339 } 340 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 341 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 342 sc->sc_rd_addr = ed->bEndpointAddress; 343 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 344 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 345 sc->sc_wr_addr = ed->bEndpointAddress; 346 } 347 } 348 if (sc->sc_rd_addr == -1 || sc->sc_wr_addr == -1) { 349 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 350 USB_ATTACH_ERROR_RETURN; 351 } 352 353 DPRINTFN(10, ("ustir_attach: %p\n", sc->sc_udev)); 354 355 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 356 USBDEV(sc->sc_dev)); 357 358 ia.ia_type = IR_TYPE_IRFRAME; 359 ia.ia_methods = &ustir_methods; 360 ia.ia_handle = sc; 361 362 sc->sc_child = config_found(self, &ia, ir_print); 363 364 USB_ATTACH_SUCCESS_RETURN; 365 } 366 367 USB_DETACH(ustir) 368 { 369 USB_DETACH_START(ustir, sc); 370 int s; 371 int rv = 0; 372 373 DPRINTFN(0, ("ustir_detach: sc=%p flags=%d\n", sc, flags)); 374 375 sc->sc_closing = sc->sc_dying = 1; 376 377 wakeup(&sc->sc_thread); 378 379 while (sc->sc_thread != NULL) 380 tsleep(&sc->sc_closing, PWAIT, "usircl", 0); 381 382 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 383 if (sc->sc_rd_pipe != NULL) { 384 usbd_abort_pipe(sc->sc_rd_pipe); 385 usbd_close_pipe(sc->sc_rd_pipe); 386 sc->sc_rd_pipe = NULL; 387 } 388 if (sc->sc_wr_pipe != NULL) { 389 usbd_abort_pipe(sc->sc_wr_pipe); 390 usbd_close_pipe(sc->sc_wr_pipe); 391 sc->sc_wr_pipe = NULL; 392 } 393 wakeup(&sc->sc_ur_framelen); 394 wakeup(&sc->sc_wr_buf); 395 396 s = splusb(); 397 if (--sc->sc_refcnt >= 0) { 398 /* Wait for processes to go away. */ 399 usb_detach_wait(USBDEV(sc->sc_dev)); 400 } 401 splx(s); 402 403 if (sc->sc_child != NULL) { 404 rv = config_detach(sc->sc_child, flags); 405 sc->sc_child = NULL; 406 } 407 408 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 409 USBDEV(sc->sc_dev)); 410 411 return rv; 412 } 413 414 Static void 415 deframe_clear(struct framestate *fstate) 416 { 417 fstate->bufindex = 0; 418 fstate->fsmstate = FSTATE_END_OF_FRAME; 419 fstate->escaped = 0; 420 } 421 422 Static void 423 deframe_init(struct framestate *fstate, struct framedefn const *definition, 424 u_int8_t *buf, size_t buflen) 425 { 426 fstate->definition = definition; 427 fstate->buffer = buf; 428 fstate->buflen = buflen; 429 430 deframe_clear(fstate); 431 } 432 433 Static enum frameresult 434 deframe_process(struct framestate *fstate, u_int8_t const **bptr, size_t *blen) 435 { 436 struct framedefn const *definition; 437 u_int8_t const *cptr; 438 u_int8_t escchr; 439 size_t ibuflen, obufindex, obuflen; 440 enum framefsmstate fsmstate; 441 enum frameresult result; 442 443 cptr = *bptr; 444 fsmstate = fstate->fsmstate; 445 definition = fstate->definition; 446 escchr = definition->esc_byte; 447 obufindex = fstate->bufindex; 448 obuflen = fstate->buflen; 449 ibuflen = *blen; 450 451 while (ibuflen-- > 0) { 452 u_int8_t chr; 453 454 chr = *cptr++; 455 456 if (fstate->escaped) { 457 fstate->escaped = 0; 458 chr ^= definition->esc_xor; 459 } else if (chr == escchr) { 460 fstate->escaped = 1; 461 continue; 462 } 463 464 switch (fsmstate) { 465 case FSTATE_IN_DATA: 466 if (chr == definition->eof_byte) { 467 fsmstate = FSTATE_IN_END; 468 fstate->state_index = definition->eof_count; 469 goto state_in_end; 470 } 471 if (obufindex >= obuflen) { 472 result = FR_BUFFEROVERRUN; 473 fsmstate = FSTATE_END_OF_FRAME; 474 goto complete; 475 } 476 fstate->buffer[obufindex++] = chr; 477 break; 478 479 state_in_end: 480 case FSTATE_IN_END: 481 if (--fstate->state_index == 0) { 482 u_int32_t crc; 483 size_t fcslen; 484 485 fsmstate = FSTATE_END_OF_FRAME; 486 487 fcslen = definition->fcs_count; 488 489 if (obufindex < fcslen) { 490 result = FR_FRAMEMALFORMED; 491 goto complete; 492 } 493 494 crc = definition-> 495 fcs_calc(definition->fcs_init, 496 fstate->buffer, obufindex); 497 498 /* Remove check bytes from buffer length */ 499 obufindex -= fcslen; 500 501 if (crc == definition->fcs_correct) 502 result = FR_FRAMEOK; 503 else 504 result = FR_FRAMEBADFCS; 505 506 goto complete; 507 } 508 break; 509 510 case FSTATE_END_OF_FRAME: 511 if (chr != definition->bof_byte) 512 break; 513 514 fsmstate = FSTATE_START_OF_FRAME; 515 fstate->state_index = definition->bof_count; 516 /* FALLTHROUGH */ 517 case FSTATE_START_OF_FRAME: 518 if (--fstate->state_index == 0) { 519 fsmstate = FSTATE_IN_DATA; 520 obufindex = 0; 521 } 522 break; 523 } 524 } 525 526 result = (fsmstate == FSTATE_END_OF_FRAME) ? FR_IDLE : FR_INPROGRESS; 527 528 complete: 529 fstate->bufindex = obufindex; 530 fstate->fsmstate = fsmstate; 531 *blen = ibuflen; 532 533 return result; 534 } 535 536 /* Returns 0 if more data required, 1 if a complete frame was extracted */ 537 static int 538 deframe_rd_ur(struct ustir_softc *sc) 539 { 540 while (sc->sc_rd_index < sc->sc_rd_count) { 541 u_int8_t const *buf; 542 size_t buflen; 543 enum frameresult fresult; 544 545 buf = &sc->sc_rd_buf[sc->sc_rd_index]; 546 buflen = sc->sc_rd_count - sc->sc_rd_index; 547 548 fresult = deframe_process(&sc->sc_framestate, &buf, &buflen); 549 550 sc->sc_rd_index = sc->sc_rd_count - buflen; 551 552 DPRINTFN(1,("%s: result=%d\n", __func__, (int)fresult)); 553 554 switch (fresult) { 555 case FR_IDLE: 556 case FR_INPROGRESS: 557 case FR_FRAMEBADFCS: 558 case FR_FRAMEMALFORMED: 559 case FR_BUFFEROVERRUN: 560 break; 561 case FR_FRAMEOK: 562 sc->sc_ur_framelen = sc->sc_framestate.bufindex; 563 wakeup(&sc->sc_ur_framelen); /* XXX should use flag */ 564 selnotify(&sc->sc_rd_sel, 0); 565 return 1; 566 } 567 } 568 569 /* Reset indices into USB-side buffer */ 570 sc->sc_rd_index = sc->sc_rd_count = 0; 571 572 return 0; 573 } 574 575 /* 576 * Direction transitions: 577 * 578 * ustir_periodic() can switch the direction from: 579 * 580 * output -> idle 581 * output -> stalled 582 * stalled -> idle 583 * idle -> input 584 * 585 * ustir_rd_cb() can switch the direction from: 586 * 587 * input -> stalled 588 * input -> idle 589 * 590 * ustir_write() can switch the direction from: 591 * 592 * idle -> output 593 */ 594 Static void 595 ustir_periodic(struct ustir_softc *sc) 596 { 597 DPRINTFN(60, ("%s: direction = %d\n", 598 __func__, sc->sc_direction)); 599 600 if (sc->sc_direction == udir_output || 601 sc->sc_direction == udir_stalled) { 602 usbd_status err; 603 u_int8_t regval; 604 605 DPRINTFN(60, ("%s: reading status register\n", 606 __func__)); 607 608 err = ustir_read_reg(sc, STIR_REG_STATUS, 609 ®val); 610 if (err) { 611 printf("%s: status register read failed: %s\n", 612 USBDEVNAME(sc->sc_dev), 613 usbd_errstr(err)); 614 } else { 615 DPRINTFN(10, ("%s: status register = 0x%x\n", 616 __func__, 617 (unsigned int)regval)); 618 if (sc->sc_direction == udir_output && 619 !(regval & STIR_RSTATUS_FFDIR)) 620 /* Output has completed */ 621 sc->sc_direction = udir_idle; 622 if (regval & STIR_RSTATUS_FFOVER) { 623 /* 624 * On an overrun the FIFO hangs, and 625 * any data bulk transfers will stall. 626 * Reset the FIFO. 627 */ 628 sc->sc_direction = udir_stalled; 629 630 DPRINTFN(10, ("%s: clearing FIFO error\n", 631 __func__)); 632 633 err = ustir_write_reg(sc, STIR_REG_STATUS, 634 STIR_RSTATUS_FFCLR); 635 /* XXX if we fail partway through 636 * this, we may not recover? */ 637 if (!err) 638 err = ustir_write_reg(sc, 639 STIR_REG_STATUS, 640 0); 641 if (err) { 642 printf("%s: FIFO reset failed: %s\n", 643 USBDEVNAME(sc->sc_dev), 644 usbd_errstr(err)); 645 } else { 646 /* FIFO reset */ 647 sc->sc_direction = udir_idle; 648 } 649 } 650 } 651 } 652 653 if (!sc->sc_rd_readinprogress && 654 (sc->sc_direction == udir_idle || 655 sc->sc_direction == udir_input)) 656 /* Do a read poll if appropriate... */ 657 ustir_start_read(sc); 658 } 659 660 Static void 661 ustir_thread(void *arg) 662 { 663 struct ustir_softc *sc = arg; 664 665 DPRINTFN(20, ("%s: starting polling thread\n", __func__)); 666 667 while (!sc->sc_closing) { 668 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 669 ustir_periodic(sc); 670 671 if (!sc->sc_closing) { 672 int error; 673 error = tsleep(&sc->sc_thread, PWAIT, 674 "ustir", hz / 10); 675 if (error == EWOULDBLOCK && 676 sc->sc_rd_expectdataticks > 0) 677 /* 678 * After a timeout decrement the tick 679 * counter within which time we expect 680 * data to arrive if we are receiving 681 * data... 682 */ 683 sc->sc_rd_expectdataticks--; 684 } 685 } 686 687 DPRINTFN(20, ("%s: exiting polling thread\n", __func__)); 688 689 sc->sc_thread = NULL; 690 691 wakeup(&sc->sc_closing); 692 693 if (--sc->sc_refcnt < 0) 694 usb_detach_wakeup(USBDEV(sc->sc_dev)); 695 696 kthread_exit(0); 697 } 698 699 Static void 700 ustir_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 701 usbd_status status) 702 { 703 struct ustir_softc *sc = priv; 704 u_int32_t size; 705 706 DPRINTFN(60, ("%s: sc=%p\n", __func__, sc)); 707 708 /* Read is no longer in progress */ 709 sc->sc_rd_readinprogress = 0; 710 711 if (status == USBD_CANCELLED || sc->sc_closing) /* this is normal */ 712 return; 713 if (status) { 714 size = 0; 715 sc->sc_rd_err = 1; 716 717 if (sc->sc_direction == udir_input || 718 sc->sc_direction == udir_idle) { 719 /* 720 * Receive error, probably need to clear error 721 * condition. 722 */ 723 sc->sc_direction = udir_stalled; 724 } 725 } else { 726 usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); 727 } 728 729 sc->sc_rd_index = 0; 730 sc->sc_rd_count = size; 731 732 DPRINTFN(((size > 0 || sc->sc_rd_err != 0) ? 20 : 60), 733 ("%s: sc=%p size=%u, err=%d\n", __func__, 734 sc, size, sc->sc_rd_err)); 735 736 #ifdef USTIR_DEBUG 737 if (ustirdebug >= 20 && size > 0) 738 ustir_dumpdata(sc->sc_rd_buf, size, __func__); 739 #endif 740 741 if (!deframe_rd_ur(sc)) { 742 if (!deframe_isclear(&sc->sc_framestate) && size == 0 && 743 sc->sc_rd_expectdataticks == 0) { 744 /* 745 * Expected data, but didn't get it 746 * within expected time... 747 */ 748 DPRINTFN(5,("%s: incoming packet timeout\n", 749 __func__)); 750 deframe_clear(&sc->sc_framestate); 751 } else if (size > 0) { 752 /* 753 * If we also received actual data, reset the 754 * data read timeout and wake up the possibly 755 * sleeping thread... 756 */ 757 sc->sc_rd_expectdataticks = 2; 758 wakeup(&sc->sc_thread); 759 } 760 } 761 762 /* 763 * Check if incoming data has stopped, or that we cannot 764 * safely read any more data. In the case of the latter we 765 * must switch to idle so that a write will not block... 766 */ 767 if (sc->sc_direction == udir_input && 768 ((size == 0 && sc->sc_rd_expectdataticks == 0) || 769 USTIR_BLOCK_RX_DATA(sc))) { 770 sc->sc_direction = udir_idle; 771 772 /* Wake up for possible output */ 773 wakeup(&sc->sc_wr_buf); 774 selnotify(&sc->sc_wr_sel, 0); 775 } 776 } 777 778 Static usbd_status 779 ustir_start_read(struct ustir_softc *sc) 780 { 781 usbd_status err; 782 783 DPRINTFN(60,("%s: sc=%p, size=%d\n", __func__, sc, 784 sc->sc_params.maxsize)); 785 786 if (sc->sc_dying) 787 return USBD_IOERROR; 788 789 if (USTIR_BLOCK_RX_DATA(sc) || deframe_rd_ur(sc)) { 790 /* 791 * Can't start reading just yet. Since we aren't 792 * going to start a read, have to switch direction to 793 * idle. 794 */ 795 sc->sc_direction = udir_idle; 796 return USBD_NORMAL_COMPLETION; 797 } 798 799 /* Starting a read... */ 800 sc->sc_rd_readinprogress = 1; 801 sc->sc_direction = udir_input; 802 803 if (sc->sc_rd_err) { 804 sc->sc_rd_err = 0; 805 DPRINTFN(0, ("%s: clear stall\n", __func__)); 806 usbd_clear_endpoint_stall(sc->sc_rd_pipe); 807 } 808 809 usbd_setup_xfer(sc->sc_rd_xfer, sc->sc_rd_pipe, sc, sc->sc_rd_buf, 810 sc->sc_params.maxsize, 811 USBD_SHORT_XFER_OK | USBD_NO_COPY, 812 USBD_NO_TIMEOUT, ustir_rd_cb); 813 err = usbd_transfer(sc->sc_rd_xfer); 814 if (err != USBD_IN_PROGRESS) { 815 DPRINTFN(0, ("%s: err=%d\n", __func__, err)); 816 return err; 817 } 818 return USBD_NORMAL_COMPLETION; 819 } 820 821 Static int 822 ustir_activate(device_ptr_t self, enum devact act) 823 { 824 struct ustir_softc *sc = (struct ustir_softc *)self; 825 int error = 0; 826 827 switch (act) { 828 case DVACT_ACTIVATE: 829 return EOPNOTSUPP; 830 831 case DVACT_DEACTIVATE: 832 sc->sc_dying = 1; 833 if (sc->sc_child != NULL) 834 error = config_deactivate(sc->sc_child); 835 break; 836 } 837 return error; 838 } 839 840 Static int 841 ustir_open(void *h, int flag, int mode, usb_proc_ptr p) 842 { 843 struct ustir_softc *sc = h; 844 int error; 845 usbd_status err; 846 847 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 848 849 err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe); 850 if (err) { 851 error = EIO; 852 goto bad1; 853 } 854 err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe); 855 if (err) { 856 error = EIO; 857 goto bad2; 858 } 859 sc->sc_rd_xfer = usbd_alloc_xfer(sc->sc_udev); 860 if (sc->sc_rd_xfer == NULL) { 861 error = ENOMEM; 862 goto bad3; 863 } 864 sc->sc_wr_xfer = usbd_alloc_xfer(sc->sc_udev); 865 if (sc->sc_wr_xfer == NULL) { 866 error = ENOMEM; 867 goto bad4; 868 } 869 sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, 870 IRDA_MAX_FRAME_SIZE); 871 if (sc->sc_rd_buf == NULL) { 872 error = ENOMEM; 873 goto bad5; 874 } 875 sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, 876 IRDA_MAX_FRAME_SIZE + STIR_OUTPUT_HEADER_SIZE); 877 if (sc->sc_wr_buf == NULL) { 878 error = ENOMEM; 879 goto bad5; 880 } 881 sc->sc_ur_buf = malloc(IRDA_MAX_FRAME_SIZE, M_USBDEV, M_NOWAIT); 882 if (sc->sc_ur_buf == NULL) { 883 error = ENOMEM; 884 goto bad5; 885 } 886 887 sc->sc_rd_index = sc->sc_rd_count = 0; 888 sc->sc_closing = 0; 889 sc->sc_rd_readinprogress = 0; 890 sc->sc_rd_expectdataticks = 0; 891 sc->sc_ur_framelen = 0; 892 sc->sc_rd_err = 0; 893 sc->sc_speedrec = NULL; 894 sc->sc_direction = udir_idle; 895 sc->sc_params.speed = 0; 896 sc->sc_params.ebofs = 0; 897 sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; 898 899 deframe_init(&sc->sc_framestate, &framedef_sir, sc->sc_ur_buf, 900 IRDA_MAX_FRAME_SIZE); 901 902 error = kthread_create1(ustir_thread, sc, &sc->sc_thread, "%s", 903 sc->sc_dev.dv_xname); 904 if (error) 905 goto bad5; 906 /* Increment reference for thread */ 907 sc->sc_refcnt++; 908 909 return 0; 910 911 bad5: 912 usbd_free_xfer(sc->sc_wr_xfer); 913 sc->sc_wr_xfer = NULL; 914 bad4: 915 usbd_free_xfer(sc->sc_rd_xfer); 916 sc->sc_rd_xfer = NULL; 917 bad3: 918 usbd_close_pipe(sc->sc_wr_pipe); 919 sc->sc_wr_pipe = NULL; 920 bad2: 921 usbd_close_pipe(sc->sc_rd_pipe); 922 sc->sc_rd_pipe = NULL; 923 bad1: 924 return error; 925 } 926 927 Static int 928 ustir_close(void *h, int flag, int mode, usb_proc_ptr p) 929 { 930 struct ustir_softc *sc = h; 931 932 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 933 934 sc->sc_refcnt++; 935 936 sc->sc_rd_readinprogress = 1; 937 sc->sc_closing = 1; 938 939 wakeup(&sc->sc_thread); 940 941 while (sc->sc_thread != NULL) 942 tsleep(&sc->sc_closing, PWAIT, "usircl", 0); 943 944 if (sc->sc_rd_pipe != NULL) { 945 usbd_abort_pipe(sc->sc_rd_pipe); 946 usbd_close_pipe(sc->sc_rd_pipe); 947 sc->sc_rd_pipe = NULL; 948 } 949 if (sc->sc_wr_pipe != NULL) { 950 usbd_abort_pipe(sc->sc_wr_pipe); 951 usbd_close_pipe(sc->sc_wr_pipe); 952 sc->sc_wr_pipe = NULL; 953 } 954 if (sc->sc_rd_xfer != NULL) { 955 usbd_free_xfer(sc->sc_rd_xfer); 956 sc->sc_rd_xfer = NULL; 957 sc->sc_rd_buf = NULL; 958 } 959 if (sc->sc_wr_xfer != NULL) { 960 usbd_free_xfer(sc->sc_wr_xfer); 961 sc->sc_wr_xfer = NULL; 962 sc->sc_wr_buf = NULL; 963 } 964 if (sc->sc_ur_buf != NULL) { 965 free(sc->sc_ur_buf, M_USBDEV); 966 sc->sc_ur_buf = NULL; 967 } 968 969 if (--sc->sc_refcnt < 0) 970 usb_detach_wakeup(USBDEV(sc->sc_dev)); 971 972 return 0; 973 } 974 975 Static int 976 ustir_read(void *h, struct uio *uio, int flag) 977 { 978 struct ustir_softc *sc = h; 979 int s; 980 int error; 981 u_int uframelen; 982 983 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 984 985 if (sc->sc_dying) 986 return EIO; 987 988 #ifdef DIAGNOSTIC 989 if (sc->sc_rd_buf == NULL) 990 return EINVAL; 991 #endif 992 993 sc->sc_refcnt++; 994 995 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 996 /* Possibly wake up polling thread */ 997 wakeup(&sc->sc_thread); 998 999 do { 1000 s = splusb(); 1001 while (sc->sc_ur_framelen == 0) { 1002 DPRINTFN(5,("%s: calling tsleep()\n", __func__)); 1003 error = tsleep(&sc->sc_ur_framelen, PZERO | PCATCH, 1004 "usirrd", 0); 1005 if (sc->sc_dying) 1006 error = EIO; 1007 if (error) { 1008 splx(s); 1009 DPRINTFN(0, ("%s: tsleep() = %d\n", 1010 __func__, error)); 1011 goto ret; 1012 } 1013 } 1014 splx(s); 1015 1016 uframelen = sc->sc_ur_framelen; 1017 DPRINTFN(1,("%s: sc=%p framelen=%u, hdr=0x%02x\n", 1018 __func__, sc, uframelen, sc->sc_ur_buf[0])); 1019 if (uframelen > uio->uio_resid) 1020 error = EINVAL; 1021 else 1022 error = uiomove(sc->sc_ur_buf, uframelen, uio); 1023 sc->sc_ur_framelen = 0; 1024 1025 if (!deframe_rd_ur(sc) && uframelen > 0) { 1026 /* 1027 * Need to wait for another read to obtain a 1028 * complete frame... If we also obtained 1029 * actual data, wake up the possibly sleeping 1030 * thread immediately... 1031 */ 1032 wakeup(&sc->sc_thread); 1033 } 1034 } while (uframelen == 0); 1035 1036 DPRINTFN(1,("%s: return %d\n", __func__, error)); 1037 1038 ret: 1039 if (--sc->sc_refcnt < 0) 1040 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1041 return error; 1042 } 1043 1044 Static int 1045 ustir_write(void *h, struct uio *uio, int flag) 1046 { 1047 struct ustir_softc *sc = h; 1048 usbd_status err; 1049 u_int32_t wrlen; 1050 int error, sirlength; 1051 u_int8_t *wrbuf; 1052 int s; 1053 1054 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1055 1056 if (sc->sc_dying) 1057 return EIO; 1058 1059 #ifdef DIAGNOSTIC 1060 if (sc->sc_wr_buf == NULL) 1061 return EINVAL; 1062 #endif 1063 1064 wrlen = uio->uio_resid; 1065 if (wrlen > sc->sc_params.maxsize) 1066 return EINVAL; 1067 1068 sc->sc_refcnt++; 1069 1070 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc) && 1071 (sc->sc_direction == udir_idle || sc->sc_direction == udir_input)) 1072 /* If idle, check for input before outputting */ 1073 ustir_start_read(sc); 1074 1075 s = splusb(); 1076 while (sc->sc_direction != udir_output && 1077 sc->sc_direction != udir_idle) { 1078 DPRINTFN(5, ("%s: calling tsleep()\n", __func__)); 1079 error = tsleep(&sc->sc_wr_buf, PZERO | PCATCH, 1080 "usirwr", 0); 1081 if (sc->sc_dying) 1082 error = EIO; 1083 if (error) { 1084 splx(s); 1085 DPRINTFN(0, ("%s: tsleep() = %d\n", __func__, 1086 error)); 1087 goto ret; 1088 } 1089 } 1090 splx(s); 1091 1092 wrbuf = sc->sc_wr_buf; 1093 1094 /* Build header */ 1095 wrbuf[0] = STIR_OUTPUT_HEADER_BYTE0; 1096 wrbuf[1] = STIR_OUTPUT_HEADER_BYTE1; 1097 1098 sirlength = irda_sir_frame(&wrbuf[STIR_OUTPUT_HEADER_SIZE], 1099 MAX_USTIR_OUTPUT_FRAME - 1100 STIR_OUTPUT_HEADER_SIZE, 1101 uio, sc->sc_params.ebofs); 1102 if (sirlength < 0) { 1103 error = -sirlength; 1104 } else { 1105 u_int32_t btlen; 1106 1107 DPRINTFN(1, ("%s: transfer %u bytes\n", __func__, 1108 (unsigned int)wrlen)); 1109 1110 wrbuf[2] = sirlength & 0xff; 1111 wrbuf[3] = (sirlength >> 8) & 0xff; 1112 1113 btlen = STIR_OUTPUT_HEADER_SIZE + sirlength; 1114 1115 sc->sc_direction = udir_output; 1116 1117 #ifdef USTIR_DEBUG 1118 if (ustirdebug >= 20) 1119 ustir_dumpdata(wrbuf, btlen, __func__); 1120 #endif 1121 1122 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 1123 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1124 USTIR_WR_TIMEOUT, 1125 wrbuf, &btlen, "ustiwr"); 1126 DPRINTFN(2, ("%s: err=%d\n", __func__, err)); 1127 if (err) { 1128 if (err == USBD_INTERRUPTED) 1129 error = EINTR; 1130 else if (err == USBD_TIMEOUT) 1131 error = ETIMEDOUT; 1132 else 1133 error = EIO; 1134 } else { 1135 error = 0; 1136 } 1137 } 1138 1139 ret: 1140 if (--sc->sc_refcnt < 0) 1141 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1142 1143 DPRINTFN(1,("%s: sc=%p done\n", __func__, sc)); 1144 return error; 1145 } 1146 1147 Static int 1148 ustir_poll(void *h, int events, usb_proc_ptr p) 1149 { 1150 struct ustir_softc *sc = h; 1151 int revents = 0; 1152 1153 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1154 1155 if (events & (POLLOUT | POLLWRNORM)) { 1156 if (sc->sc_direction != udir_input) { 1157 revents |= events & (POLLOUT | POLLWRNORM); 1158 } else { 1159 DPRINTFN(2,("%s: recording write select\n", 1160 __func__)); 1161 selrecord(p, &sc->sc_wr_sel); 1162 } 1163 } 1164 1165 if (events & (POLLIN | POLLRDNORM)) { 1166 if (sc->sc_ur_framelen != 0) { 1167 DPRINTFN(2,("%s: have data\n", __func__)); 1168 revents |= events & (POLLIN | POLLRDNORM); 1169 } else { 1170 DPRINTFN(2,("%s: recording read select\n", 1171 __func__)); 1172 selrecord(p, &sc->sc_rd_sel); 1173 } 1174 } 1175 1176 return revents; 1177 } 1178 1179 static void 1180 filt_ustirrdetach(struct knote *kn) 1181 { 1182 struct ustir_softc *sc = kn->kn_hook; 1183 int s; 1184 1185 s = splusb(); 1186 SLIST_REMOVE(&sc->sc_rd_sel.si_klist, kn, knote, kn_selnext); 1187 splx(s); 1188 } 1189 1190 static int 1191 filt_ustirread(struct knote *kn, long hint) 1192 { 1193 struct ustir_softc *sc = kn->kn_hook; 1194 1195 kn->kn_data = sc->sc_ur_framelen; 1196 return (kn->kn_data > 0); 1197 } 1198 1199 static void 1200 filt_ustirwdetach(struct knote *kn) 1201 { 1202 struct ustir_softc *sc = kn->kn_hook; 1203 int s; 1204 1205 s = splusb(); 1206 SLIST_REMOVE(&sc->sc_wr_sel.si_klist, kn, knote, kn_selnext); 1207 splx(s); 1208 } 1209 1210 static int 1211 filt_ustirwrite(struct knote *kn, long hint) 1212 { 1213 struct ustir_softc *sc = kn->kn_hook; 1214 1215 kn->kn_data = 0; 1216 return (sc->sc_direction != udir_input); 1217 } 1218 1219 static const struct filterops ustirread_filtops = 1220 { 1, NULL, filt_ustirrdetach, filt_ustirread }; 1221 static const struct filterops ustirwrite_filtops = 1222 { 1, NULL, filt_ustirwdetach, filt_ustirwrite }; 1223 1224 Static int 1225 ustir_kqfilter(void *h, struct knote *kn) 1226 { 1227 struct ustir_softc *sc = h; 1228 struct klist *klist; 1229 int s; 1230 1231 switch (kn->kn_filter) { 1232 case EVFILT_READ: 1233 klist = &sc->sc_rd_sel.si_klist; 1234 kn->kn_fop = &ustirread_filtops; 1235 break; 1236 case EVFILT_WRITE: 1237 klist = &sc->sc_wr_sel.si_klist; 1238 kn->kn_fop = &ustirwrite_filtops; 1239 break; 1240 default: 1241 return (1); 1242 } 1243 1244 kn->kn_hook = sc; 1245 1246 s = splusb(); 1247 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 1248 splx(s); 1249 1250 return (0); 1251 } 1252 1253 #ifdef USTIR_DEBUG_IOCTLS 1254 Static int ustir_ioctl(void *h, u_long cmd, caddr_t addr, int flag, usb_proc_ptr p) 1255 { 1256 struct ustir_softc *sc = h; 1257 int error; 1258 unsigned int regnum; 1259 usbd_status err; 1260 u_int8_t regdata; 1261 1262 if (sc->sc_dying) 1263 return EIO; 1264 1265 sc->sc_refcnt++; 1266 1267 error = 0; 1268 switch (cmd) { 1269 case USTIR_READ_REGISTER: 1270 regnum = *(unsigned int *)addr; 1271 1272 if (regnum > STIR_MAX_REG) { 1273 error = EINVAL; 1274 break; 1275 } 1276 1277 err = ustir_read_reg(sc, regnum, ®data); 1278 1279 DPRINTFN(10, ("%s: regget(%u) = 0x%x\n", __func__, 1280 regnum, (unsigned int)regdata)); 1281 1282 *(unsigned int *)addr = regdata; 1283 if (err) { 1284 printf("%s: register read failed: %s\n", 1285 USBDEVNAME(sc->sc_dev), 1286 usbd_errstr(err)); 1287 error = EIO; 1288 } 1289 break; 1290 1291 case USTIR_WRITE_REGISTER: 1292 regnum = *(unsigned int *)addr; 1293 regdata = (regnum >> 8) & 0xff; 1294 regnum = regnum & 0xff; 1295 1296 if (regnum > STIR_MAX_REG) { 1297 error = EINVAL; 1298 break; 1299 } 1300 1301 DPRINTFN(10, ("%s: regset(%u, 0x%x)\n", __func__, 1302 regnum, (unsigned int)regdata)); 1303 1304 err = ustir_write_reg(sc, regnum, regdata); 1305 if (err) { 1306 printf("%s: register write failed: %s\n", 1307 USBDEVNAME(sc->sc_dev), 1308 usbd_errstr(err)); 1309 error = EIO; 1310 } 1311 break; 1312 1313 case USTIR_DEBUG_LEVEL: 1314 #ifdef USTIR_DEBUG 1315 ustirdebug = *(int *)addr; 1316 #endif 1317 break; 1318 1319 case USTIR_DEBUG_OPERATION: 1320 break; 1321 1322 default: 1323 error = EINVAL; 1324 break; 1325 } 1326 1327 if (--sc->sc_refcnt < 0) 1328 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1329 1330 return error; 1331 } 1332 #endif 1333 1334 Static int 1335 ustir_set_params(void *h, struct irda_params *p) 1336 { 1337 struct ustir_softc *sc = h; 1338 struct ustir_speedrec const *speedblk; 1339 int i; 1340 1341 DPRINTFN(0, ("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__, 1342 sc, p->speed, p->ebofs, p->maxsize)); 1343 1344 if (sc->sc_dying) 1345 return EIO; 1346 1347 speedblk = NULL; 1348 1349 if (sc->sc_speedrec == NULL || p->speed != sc->sc_speedrec->speed) { 1350 /* find speed */ 1351 for (i = 0; i < USTIR_NSPEEDS; i++) { 1352 if (ustir_speeds[i].speed == p->speed) { 1353 speedblk = &ustir_speeds[i]; 1354 goto found2; 1355 } 1356 } 1357 /* no good value found */ 1358 return EINVAL; 1359 found2: 1360 ; 1361 } 1362 if (p->maxsize != sc->sc_params.maxsize) { 1363 if (p->maxsize > IRDA_MAX_FRAME_SIZE) 1364 return EINVAL; 1365 sc->sc_params.maxsize = p->maxsize; 1366 } 1367 1368 sc->sc_params = *p; 1369 1370 if (speedblk != NULL) { 1371 usbd_status err; 1372 u_int8_t regmode; 1373 u_int8_t regbrate; 1374 1375 sc->sc_speedrec = speedblk; 1376 1377 regmode = STIR_BRMODE_MODEREG(speedblk->config); 1378 regbrate = STIR_BRMODE_BRATEREG(speedblk->config); 1379 1380 /* 1381 * FFSPRST must be set to enable the FIFO. 1382 */ 1383 regmode |= STIR_RMODE_FFSPRST; 1384 1385 DPRINTFN(10, ("%s: setting BRATE = %x\n", __func__, 1386 (unsigned int)regbrate)); 1387 err = ustir_write_reg(sc, STIR_REG_BRATE, regbrate); 1388 if (!err) { 1389 DPRINTFN(10, ("%s: setting MODE = %x\n", __func__, 1390 (unsigned int)regmode)); 1391 err = ustir_write_reg(sc, STIR_REG_MODE, regmode); 1392 } 1393 if (err) { 1394 DPRINTFN(10, ("%s: error setting register: %s\n", 1395 __func__, usbd_errstr(err))); 1396 return EIO; 1397 } 1398 } 1399 1400 return 0; 1401 } 1402 1403 Static int 1404 ustir_get_speeds(void *h, int *speeds) 1405 { 1406 struct ustir_softc *sc = h; 1407 1408 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1409 1410 if (sc->sc_dying) 1411 return EIO; 1412 1413 /* All these speeds are supported */ 1414 *speeds = IRDA_SPEED_4000000 | 1415 IRDA_SPEED_1152000 | 1416 IRDA_SPEED_576000 | 1417 IRDA_SPEED_115200 | 1418 IRDA_SPEED_57600 | 1419 IRDA_SPEED_38400 | 1420 IRDA_SPEED_19200 | 1421 IRDA_SPEED_9600 | 1422 IRDA_SPEED_2400; 1423 1424 return 0; 1425 } 1426 1427 Static int 1428 ustir_get_turnarounds(void *h, int *turnarounds) 1429 { 1430 struct ustir_softc *sc = h; 1431 1432 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1433 1434 if (sc->sc_dying) 1435 return EIO; 1436 1437 /* 1438 * Documentation is on the light side with respect to 1439 * turnaround time for this device. 1440 */ 1441 *turnarounds = IRDA_TURNT_10000; 1442 1443 return 0; 1444 } 1445
Indexes created Thu Sep 25 16:09:42 GMT 2025