ustir.c revision 1.6
1 /* $NetBSD: ustir.c,v 1.6 2002/11/26 18:49:50 christos 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 1.6 2002/11/26 18:49:50 christos 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 /* FALLTHROUGH */ 481 482 case FSTATE_IN_END: 483 if (--fstate->state_index == 0) { 484 u_int32_t crc; 485 size_t fcslen; 486 487 fsmstate = FSTATE_END_OF_FRAME; 488 489 fcslen = definition->fcs_count; 490 491 if (obufindex < fcslen) { 492 result = FR_FRAMEMALFORMED; 493 goto complete; 494 } 495 496 crc = definition-> 497 fcs_calc(definition->fcs_init, 498 fstate->buffer, obufindex); 499 500 /* Remove check bytes from buffer length */ 501 obufindex -= fcslen; 502 503 if (crc == definition->fcs_correct) 504 result = FR_FRAMEOK; 505 else 506 result = FR_FRAMEBADFCS; 507 508 goto complete; 509 } 510 break; 511 512 case FSTATE_END_OF_FRAME: 513 if (chr != definition->bof_byte) 514 break; 515 516 fsmstate = FSTATE_START_OF_FRAME; 517 fstate->state_index = definition->bof_count; 518 /* FALLTHROUGH */ 519 case FSTATE_START_OF_FRAME: 520 if (--fstate->state_index == 0) { 521 fsmstate = FSTATE_IN_DATA; 522 obufindex = 0; 523 } 524 break; 525 } 526 } 527 528 result = (fsmstate == FSTATE_END_OF_FRAME) ? FR_IDLE : FR_INPROGRESS; 529 530 complete: 531 fstate->bufindex = obufindex; 532 fstate->fsmstate = fsmstate; 533 *blen = ibuflen; 534 535 return result; 536 } 537 538 /* Returns 0 if more data required, 1 if a complete frame was extracted */ 539 static int 540 deframe_rd_ur(struct ustir_softc *sc) 541 { 542 while (sc->sc_rd_index < sc->sc_rd_count) { 543 u_int8_t const *buf; 544 size_t buflen; 545 enum frameresult fresult; 546 547 buf = &sc->sc_rd_buf[sc->sc_rd_index]; 548 buflen = sc->sc_rd_count - sc->sc_rd_index; 549 550 fresult = deframe_process(&sc->sc_framestate, &buf, &buflen); 551 552 sc->sc_rd_index = sc->sc_rd_count - buflen; 553 554 DPRINTFN(1,("%s: result=%d\n", __func__, (int)fresult)); 555 556 switch (fresult) { 557 case FR_IDLE: 558 case FR_INPROGRESS: 559 case FR_FRAMEBADFCS: 560 case FR_FRAMEMALFORMED: 561 case FR_BUFFEROVERRUN: 562 break; 563 case FR_FRAMEOK: 564 sc->sc_ur_framelen = sc->sc_framestate.bufindex; 565 wakeup(&sc->sc_ur_framelen); /* XXX should use flag */ 566 selnotify(&sc->sc_rd_sel, 0); 567 return 1; 568 } 569 } 570 571 /* Reset indices into USB-side buffer */ 572 sc->sc_rd_index = sc->sc_rd_count = 0; 573 574 return 0; 575 } 576 577 /* 578 * Direction transitions: 579 * 580 * ustir_periodic() can switch the direction from: 581 * 582 * output -> idle 583 * output -> stalled 584 * stalled -> idle 585 * idle -> input 586 * 587 * ustir_rd_cb() can switch the direction from: 588 * 589 * input -> stalled 590 * input -> idle 591 * 592 * ustir_write() can switch the direction from: 593 * 594 * idle -> output 595 */ 596 Static void 597 ustir_periodic(struct ustir_softc *sc) 598 { 599 DPRINTFN(60, ("%s: direction = %d\n", 600 __func__, sc->sc_direction)); 601 602 if (sc->sc_direction == udir_output || 603 sc->sc_direction == udir_stalled) { 604 usbd_status err; 605 u_int8_t regval; 606 607 DPRINTFN(60, ("%s: reading status register\n", 608 __func__)); 609 610 err = ustir_read_reg(sc, STIR_REG_STATUS, 611 ®val); 612 if (err) { 613 printf("%s: status register read failed: %s\n", 614 USBDEVNAME(sc->sc_dev), 615 usbd_errstr(err)); 616 } else { 617 DPRINTFN(10, ("%s: status register = 0x%x\n", 618 __func__, 619 (unsigned int)regval)); 620 if (sc->sc_direction == udir_output && 621 !(regval & STIR_RSTATUS_FFDIR)) 622 /* Output has completed */ 623 sc->sc_direction = udir_idle; 624 if (regval & STIR_RSTATUS_FFOVER) { 625 /* 626 * On an overrun the FIFO hangs, and 627 * any data bulk transfers will stall. 628 * Reset the FIFO. 629 */ 630 sc->sc_direction = udir_stalled; 631 632 DPRINTFN(10, ("%s: clearing FIFO error\n", 633 __func__)); 634 635 err = ustir_write_reg(sc, STIR_REG_STATUS, 636 STIR_RSTATUS_FFCLR); 637 /* XXX if we fail partway through 638 * this, we may not recover? */ 639 if (!err) 640 err = ustir_write_reg(sc, 641 STIR_REG_STATUS, 642 0); 643 if (err) { 644 printf("%s: FIFO reset failed: %s\n", 645 USBDEVNAME(sc->sc_dev), 646 usbd_errstr(err)); 647 } else { 648 /* FIFO reset */ 649 sc->sc_direction = udir_idle; 650 } 651 } 652 } 653 } 654 655 if (!sc->sc_rd_readinprogress && 656 (sc->sc_direction == udir_idle || 657 sc->sc_direction == udir_input)) 658 /* Do a read poll if appropriate... */ 659 ustir_start_read(sc); 660 } 661 662 Static void 663 ustir_thread(void *arg) 664 { 665 struct ustir_softc *sc = arg; 666 667 DPRINTFN(20, ("%s: starting polling thread\n", __func__)); 668 669 while (!sc->sc_closing) { 670 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 671 ustir_periodic(sc); 672 673 if (!sc->sc_closing) { 674 int error; 675 error = tsleep(&sc->sc_thread, PWAIT, 676 "ustir", hz / 10); 677 if (error == EWOULDBLOCK && 678 sc->sc_rd_expectdataticks > 0) 679 /* 680 * After a timeout decrement the tick 681 * counter within which time we expect 682 * data to arrive if we are receiving 683 * data... 684 */ 685 sc->sc_rd_expectdataticks--; 686 } 687 } 688 689 DPRINTFN(20, ("%s: exiting polling thread\n", __func__)); 690 691 sc->sc_thread = NULL; 692 693 wakeup(&sc->sc_closing); 694 695 if (--sc->sc_refcnt < 0) 696 usb_detach_wakeup(USBDEV(sc->sc_dev)); 697 698 kthread_exit(0); 699 } 700 701 Static void 702 ustir_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 703 usbd_status status) 704 { 705 struct ustir_softc *sc = priv; 706 u_int32_t size; 707 708 DPRINTFN(60, ("%s: sc=%p\n", __func__, sc)); 709 710 /* Read is no longer in progress */ 711 sc->sc_rd_readinprogress = 0; 712 713 if (status == USBD_CANCELLED || sc->sc_closing) /* this is normal */ 714 return; 715 if (status) { 716 size = 0; 717 sc->sc_rd_err = 1; 718 719 if (sc->sc_direction == udir_input || 720 sc->sc_direction == udir_idle) { 721 /* 722 * Receive error, probably need to clear error 723 * condition. 724 */ 725 sc->sc_direction = udir_stalled; 726 } 727 } else { 728 usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); 729 } 730 731 sc->sc_rd_index = 0; 732 sc->sc_rd_count = size; 733 734 DPRINTFN(((size > 0 || sc->sc_rd_err != 0) ? 20 : 60), 735 ("%s: sc=%p size=%u, err=%d\n", __func__, 736 sc, size, sc->sc_rd_err)); 737 738 #ifdef USTIR_DEBUG 739 if (ustirdebug >= 20 && size > 0) 740 ustir_dumpdata(sc->sc_rd_buf, size, __func__); 741 #endif 742 743 if (!deframe_rd_ur(sc)) { 744 if (!deframe_isclear(&sc->sc_framestate) && size == 0 && 745 sc->sc_rd_expectdataticks == 0) { 746 /* 747 * Expected data, but didn't get it 748 * within expected time... 749 */ 750 DPRINTFN(5,("%s: incoming packet timeout\n", 751 __func__)); 752 deframe_clear(&sc->sc_framestate); 753 } else if (size > 0) { 754 /* 755 * If we also received actual data, reset the 756 * data read timeout and wake up the possibly 757 * sleeping thread... 758 */ 759 sc->sc_rd_expectdataticks = 2; 760 wakeup(&sc->sc_thread); 761 } 762 } 763 764 /* 765 * Check if incoming data has stopped, or that we cannot 766 * safely read any more data. In the case of the latter we 767 * must switch to idle so that a write will not block... 768 */ 769 if (sc->sc_direction == udir_input && 770 ((size == 0 && sc->sc_rd_expectdataticks == 0) || 771 USTIR_BLOCK_RX_DATA(sc))) { 772 sc->sc_direction = udir_idle; 773 774 /* Wake up for possible output */ 775 wakeup(&sc->sc_wr_buf); 776 selnotify(&sc->sc_wr_sel, 0); 777 } 778 } 779 780 Static usbd_status 781 ustir_start_read(struct ustir_softc *sc) 782 { 783 usbd_status err; 784 785 DPRINTFN(60,("%s: sc=%p, size=%d\n", __func__, sc, 786 sc->sc_params.maxsize)); 787 788 if (sc->sc_dying) 789 return USBD_IOERROR; 790 791 if (USTIR_BLOCK_RX_DATA(sc) || deframe_rd_ur(sc)) { 792 /* 793 * Can't start reading just yet. Since we aren't 794 * going to start a read, have to switch direction to 795 * idle. 796 */ 797 sc->sc_direction = udir_idle; 798 return USBD_NORMAL_COMPLETION; 799 } 800 801 /* Starting a read... */ 802 sc->sc_rd_readinprogress = 1; 803 sc->sc_direction = udir_input; 804 805 if (sc->sc_rd_err) { 806 sc->sc_rd_err = 0; 807 DPRINTFN(0, ("%s: clear stall\n", __func__)); 808 usbd_clear_endpoint_stall(sc->sc_rd_pipe); 809 } 810 811 usbd_setup_xfer(sc->sc_rd_xfer, sc->sc_rd_pipe, sc, sc->sc_rd_buf, 812 sc->sc_params.maxsize, 813 USBD_SHORT_XFER_OK | USBD_NO_COPY, 814 USBD_NO_TIMEOUT, ustir_rd_cb); 815 err = usbd_transfer(sc->sc_rd_xfer); 816 if (err != USBD_IN_PROGRESS) { 817 DPRINTFN(0, ("%s: err=%d\n", __func__, err)); 818 return err; 819 } 820 return USBD_NORMAL_COMPLETION; 821 } 822 823 Static int 824 ustir_activate(device_ptr_t self, enum devact act) 825 { 826 struct ustir_softc *sc = (struct ustir_softc *)self; 827 int error = 0; 828 829 switch (act) { 830 case DVACT_ACTIVATE: 831 return EOPNOTSUPP; 832 833 case DVACT_DEACTIVATE: 834 sc->sc_dying = 1; 835 if (sc->sc_child != NULL) 836 error = config_deactivate(sc->sc_child); 837 break; 838 } 839 return error; 840 } 841 842 /* ARGSUSED */ 843 Static int 844 ustir_open(void *h, int flag, int mode, usb_proc_ptr p) 845 { 846 struct ustir_softc *sc = h; 847 int error; 848 usbd_status err; 849 850 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 851 852 err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe); 853 if (err) { 854 error = EIO; 855 goto bad1; 856 } 857 err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe); 858 if (err) { 859 error = EIO; 860 goto bad2; 861 } 862 sc->sc_rd_xfer = usbd_alloc_xfer(sc->sc_udev); 863 if (sc->sc_rd_xfer == NULL) { 864 error = ENOMEM; 865 goto bad3; 866 } 867 sc->sc_wr_xfer = usbd_alloc_xfer(sc->sc_udev); 868 if (sc->sc_wr_xfer == NULL) { 869 error = ENOMEM; 870 goto bad4; 871 } 872 sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, 873 IRDA_MAX_FRAME_SIZE); 874 if (sc->sc_rd_buf == NULL) { 875 error = ENOMEM; 876 goto bad5; 877 } 878 sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, 879 IRDA_MAX_FRAME_SIZE + STIR_OUTPUT_HEADER_SIZE); 880 if (sc->sc_wr_buf == NULL) { 881 error = ENOMEM; 882 goto bad5; 883 } 884 sc->sc_ur_buf = malloc(IRDA_MAX_FRAME_SIZE, M_USBDEV, M_NOWAIT); 885 if (sc->sc_ur_buf == NULL) { 886 error = ENOMEM; 887 goto bad5; 888 } 889 890 sc->sc_rd_index = sc->sc_rd_count = 0; 891 sc->sc_closing = 0; 892 sc->sc_rd_readinprogress = 0; 893 sc->sc_rd_expectdataticks = 0; 894 sc->sc_ur_framelen = 0; 895 sc->sc_rd_err = 0; 896 sc->sc_speedrec = NULL; 897 sc->sc_direction = udir_idle; 898 sc->sc_params.speed = 0; 899 sc->sc_params.ebofs = 0; 900 sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; 901 902 deframe_init(&sc->sc_framestate, &framedef_sir, sc->sc_ur_buf, 903 IRDA_MAX_FRAME_SIZE); 904 905 error = kthread_create1(ustir_thread, sc, &sc->sc_thread, "%s", 906 sc->sc_dev.dv_xname); 907 if (error) 908 goto bad5; 909 /* Increment reference for thread */ 910 sc->sc_refcnt++; 911 912 return 0; 913 914 bad5: 915 usbd_free_xfer(sc->sc_wr_xfer); 916 sc->sc_wr_xfer = NULL; 917 bad4: 918 usbd_free_xfer(sc->sc_rd_xfer); 919 sc->sc_rd_xfer = NULL; 920 bad3: 921 usbd_close_pipe(sc->sc_wr_pipe); 922 sc->sc_wr_pipe = NULL; 923 bad2: 924 usbd_close_pipe(sc->sc_rd_pipe); 925 sc->sc_rd_pipe = NULL; 926 bad1: 927 return error; 928 } 929 930 /* ARGSUSED */ 931 Static int 932 ustir_close(void *h, int flag, int mode, usb_proc_ptr p) 933 { 934 struct ustir_softc *sc = h; 935 936 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 937 938 sc->sc_refcnt++; 939 940 sc->sc_rd_readinprogress = 1; 941 sc->sc_closing = 1; 942 943 wakeup(&sc->sc_thread); 944 945 while (sc->sc_thread != NULL) 946 tsleep(&sc->sc_closing, PWAIT, "usircl", 0); 947 948 if (sc->sc_rd_pipe != NULL) { 949 usbd_abort_pipe(sc->sc_rd_pipe); 950 usbd_close_pipe(sc->sc_rd_pipe); 951 sc->sc_rd_pipe = NULL; 952 } 953 if (sc->sc_wr_pipe != NULL) { 954 usbd_abort_pipe(sc->sc_wr_pipe); 955 usbd_close_pipe(sc->sc_wr_pipe); 956 sc->sc_wr_pipe = NULL; 957 } 958 if (sc->sc_rd_xfer != NULL) { 959 usbd_free_xfer(sc->sc_rd_xfer); 960 sc->sc_rd_xfer = NULL; 961 sc->sc_rd_buf = NULL; 962 } 963 if (sc->sc_wr_xfer != NULL) { 964 usbd_free_xfer(sc->sc_wr_xfer); 965 sc->sc_wr_xfer = NULL; 966 sc->sc_wr_buf = NULL; 967 } 968 if (sc->sc_ur_buf != NULL) { 969 free(sc->sc_ur_buf, M_USBDEV); 970 sc->sc_ur_buf = NULL; 971 } 972 973 if (--sc->sc_refcnt < 0) 974 usb_detach_wakeup(USBDEV(sc->sc_dev)); 975 976 return 0; 977 } 978 979 Static int 980 ustir_read(void *h, struct uio *uio, int flag) 981 { 982 struct ustir_softc *sc = h; 983 int s; 984 int error; 985 u_int uframelen; 986 987 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 988 989 if (sc->sc_dying) 990 return EIO; 991 992 #ifdef DIAGNOSTIC 993 if (sc->sc_rd_buf == NULL) 994 return EINVAL; 995 #endif 996 997 sc->sc_refcnt++; 998 999 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 1000 /* Possibly wake up polling thread */ 1001 wakeup(&sc->sc_thread); 1002 1003 do { 1004 s = splusb(); 1005 while (sc->sc_ur_framelen == 0) { 1006 DPRINTFN(5,("%s: calling tsleep()\n", __func__)); 1007 error = tsleep(&sc->sc_ur_framelen, PZERO | PCATCH, 1008 "usirrd", 0); 1009 if (sc->sc_dying) 1010 error = EIO; 1011 if (error) { 1012 splx(s); 1013 DPRINTFN(0, ("%s: tsleep() = %d\n", 1014 __func__, error)); 1015 goto ret; 1016 } 1017 } 1018 splx(s); 1019 1020 uframelen = sc->sc_ur_framelen; 1021 DPRINTFN(1,("%s: sc=%p framelen=%u, hdr=0x%02x\n", 1022 __func__, sc, uframelen, sc->sc_ur_buf[0])); 1023 if (uframelen > uio->uio_resid) 1024 error = EINVAL; 1025 else 1026 error = uiomove(sc->sc_ur_buf, uframelen, uio); 1027 sc->sc_ur_framelen = 0; 1028 1029 if (!deframe_rd_ur(sc) && uframelen > 0) { 1030 /* 1031 * Need to wait for another read to obtain a 1032 * complete frame... If we also obtained 1033 * actual data, wake up the possibly sleeping 1034 * thread immediately... 1035 */ 1036 wakeup(&sc->sc_thread); 1037 } 1038 } while (uframelen == 0); 1039 1040 DPRINTFN(1,("%s: return %d\n", __func__, error)); 1041 1042 ret: 1043 if (--sc->sc_refcnt < 0) 1044 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1045 return error; 1046 } 1047 1048 Static int 1049 ustir_write(void *h, struct uio *uio, int flag) 1050 { 1051 struct ustir_softc *sc = h; 1052 usbd_status err; 1053 u_int32_t wrlen; 1054 int error, sirlength; 1055 u_int8_t *wrbuf; 1056 int s; 1057 1058 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1059 1060 if (sc->sc_dying) 1061 return EIO; 1062 1063 #ifdef DIAGNOSTIC 1064 if (sc->sc_wr_buf == NULL) 1065 return EINVAL; 1066 #endif 1067 1068 wrlen = uio->uio_resid; 1069 if (wrlen > sc->sc_params.maxsize) 1070 return EINVAL; 1071 1072 sc->sc_refcnt++; 1073 1074 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc) && 1075 (sc->sc_direction == udir_idle || sc->sc_direction == udir_input)) 1076 /* If idle, check for input before outputting */ 1077 ustir_start_read(sc); 1078 1079 s = splusb(); 1080 while (sc->sc_direction != udir_output && 1081 sc->sc_direction != udir_idle) { 1082 DPRINTFN(5, ("%s: calling tsleep()\n", __func__)); 1083 error = tsleep(&sc->sc_wr_buf, PZERO | PCATCH, 1084 "usirwr", 0); 1085 if (sc->sc_dying) 1086 error = EIO; 1087 if (error) { 1088 splx(s); 1089 DPRINTFN(0, ("%s: tsleep() = %d\n", __func__, 1090 error)); 1091 goto ret; 1092 } 1093 } 1094 splx(s); 1095 1096 wrbuf = sc->sc_wr_buf; 1097 1098 /* Build header */ 1099 wrbuf[0] = STIR_OUTPUT_HEADER_BYTE0; 1100 wrbuf[1] = STIR_OUTPUT_HEADER_BYTE1; 1101 1102 sirlength = irda_sir_frame(&wrbuf[STIR_OUTPUT_HEADER_SIZE], 1103 MAX_USTIR_OUTPUT_FRAME - 1104 STIR_OUTPUT_HEADER_SIZE, 1105 uio, sc->sc_params.ebofs); 1106 if (sirlength < 0) { 1107 error = -sirlength; 1108 } else { 1109 u_int32_t btlen; 1110 1111 DPRINTFN(1, ("%s: transfer %u bytes\n", __func__, 1112 (unsigned int)wrlen)); 1113 1114 wrbuf[2] = sirlength & 0xff; 1115 wrbuf[3] = (sirlength >> 8) & 0xff; 1116 1117 btlen = STIR_OUTPUT_HEADER_SIZE + sirlength; 1118 1119 sc->sc_direction = udir_output; 1120 1121 #ifdef USTIR_DEBUG 1122 if (ustirdebug >= 20) 1123 ustir_dumpdata(wrbuf, btlen, __func__); 1124 #endif 1125 1126 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 1127 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1128 USTIR_WR_TIMEOUT, 1129 wrbuf, &btlen, "ustiwr"); 1130 DPRINTFN(2, ("%s: err=%d\n", __func__, err)); 1131 if (err) { 1132 if (err == USBD_INTERRUPTED) 1133 error = EINTR; 1134 else if (err == USBD_TIMEOUT) 1135 error = ETIMEDOUT; 1136 else 1137 error = EIO; 1138 } else { 1139 error = 0; 1140 } 1141 } 1142 1143 ret: 1144 if (--sc->sc_refcnt < 0) 1145 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1146 1147 DPRINTFN(1,("%s: sc=%p done\n", __func__, sc)); 1148 return error; 1149 } 1150 1151 Static int 1152 ustir_poll(void *h, int events, usb_proc_ptr p) 1153 { 1154 struct ustir_softc *sc = h; 1155 int revents = 0; 1156 1157 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1158 1159 if (events & (POLLOUT | POLLWRNORM)) { 1160 if (sc->sc_direction != udir_input) { 1161 revents |= events & (POLLOUT | POLLWRNORM); 1162 } else { 1163 DPRINTFN(2,("%s: recording write select\n", 1164 __func__)); 1165 selrecord(p, &sc->sc_wr_sel); 1166 } 1167 } 1168 1169 if (events & (POLLIN | POLLRDNORM)) { 1170 if (sc->sc_ur_framelen != 0) { 1171 DPRINTFN(2,("%s: have data\n", __func__)); 1172 revents |= events & (POLLIN | POLLRDNORM); 1173 } else { 1174 DPRINTFN(2,("%s: recording read select\n", 1175 __func__)); 1176 selrecord(p, &sc->sc_rd_sel); 1177 } 1178 } 1179 1180 return revents; 1181 } 1182 1183 static void 1184 filt_ustirrdetach(struct knote *kn) 1185 { 1186 struct ustir_softc *sc = kn->kn_hook; 1187 int s; 1188 1189 s = splusb(); 1190 SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext); 1191 splx(s); 1192 } 1193 1194 static int 1195 filt_ustirread(struct knote *kn, long hint) 1196 { 1197 struct ustir_softc *sc = kn->kn_hook; 1198 1199 kn->kn_data = sc->sc_ur_framelen; 1200 return (kn->kn_data > 0); 1201 } 1202 1203 static void 1204 filt_ustirwdetach(struct knote *kn) 1205 { 1206 struct ustir_softc *sc = kn->kn_hook; 1207 int s; 1208 1209 s = splusb(); 1210 SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext); 1211 splx(s); 1212 } 1213 1214 static int 1215 filt_ustirwrite(struct knote *kn, long hint) 1216 { 1217 struct ustir_softc *sc = kn->kn_hook; 1218 1219 kn->kn_data = 0; 1220 return (sc->sc_direction != udir_input); 1221 } 1222 1223 static const struct filterops ustirread_filtops = 1224 { 1, NULL, filt_ustirrdetach, filt_ustirread }; 1225 static const struct filterops ustirwrite_filtops = 1226 { 1, NULL, filt_ustirwdetach, filt_ustirwrite }; 1227 1228 Static int 1229 ustir_kqfilter(void *h, struct knote *kn) 1230 { 1231 struct ustir_softc *sc = h; 1232 struct klist *klist; 1233 int s; 1234 1235 switch (kn->kn_filter) { 1236 case EVFILT_READ: 1237 klist = &sc->sc_rd_sel.sel_klist; 1238 kn->kn_fop = &ustirread_filtops; 1239 break; 1240 case EVFILT_WRITE: 1241 klist = &sc->sc_wr_sel.sel_klist; 1242 kn->kn_fop = &ustirwrite_filtops; 1243 break; 1244 default: 1245 return (1); 1246 } 1247 1248 kn->kn_hook = sc; 1249 1250 s = splusb(); 1251 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 1252 splx(s); 1253 1254 return (0); 1255 } 1256 1257 #ifdef USTIR_DEBUG_IOCTLS 1258 Static int ustir_ioctl(void *h, u_long cmd, caddr_t addr, int flag, usb_proc_ptr p) 1259 { 1260 struct ustir_softc *sc = h; 1261 int error; 1262 unsigned int regnum; 1263 usbd_status err; 1264 u_int8_t regdata; 1265 1266 if (sc->sc_dying) 1267 return EIO; 1268 1269 sc->sc_refcnt++; 1270 1271 error = 0; 1272 switch (cmd) { 1273 case USTIR_READ_REGISTER: 1274 regnum = *(unsigned int *)addr; 1275 1276 if (regnum > STIR_MAX_REG) { 1277 error = EINVAL; 1278 break; 1279 } 1280 1281 err = ustir_read_reg(sc, regnum, ®data); 1282 1283 DPRINTFN(10, ("%s: regget(%u) = 0x%x\n", __func__, 1284 regnum, (unsigned int)regdata)); 1285 1286 *(unsigned int *)addr = regdata; 1287 if (err) { 1288 printf("%s: register read failed: %s\n", 1289 USBDEVNAME(sc->sc_dev), 1290 usbd_errstr(err)); 1291 error = EIO; 1292 } 1293 break; 1294 1295 case USTIR_WRITE_REGISTER: 1296 regnum = *(unsigned int *)addr; 1297 regdata = (regnum >> 8) & 0xff; 1298 regnum = regnum & 0xff; 1299 1300 if (regnum > STIR_MAX_REG) { 1301 error = EINVAL; 1302 break; 1303 } 1304 1305 DPRINTFN(10, ("%s: regset(%u, 0x%x)\n", __func__, 1306 regnum, (unsigned int)regdata)); 1307 1308 err = ustir_write_reg(sc, regnum, regdata); 1309 if (err) { 1310 printf("%s: register write failed: %s\n", 1311 USBDEVNAME(sc->sc_dev), 1312 usbd_errstr(err)); 1313 error = EIO; 1314 } 1315 break; 1316 1317 case USTIR_DEBUG_LEVEL: 1318 #ifdef USTIR_DEBUG 1319 ustirdebug = *(int *)addr; 1320 #endif 1321 break; 1322 1323 case USTIR_DEBUG_OPERATION: 1324 break; 1325 1326 default: 1327 error = EINVAL; 1328 break; 1329 } 1330 1331 if (--sc->sc_refcnt < 0) 1332 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1333 1334 return error; 1335 } 1336 #endif 1337 1338 Static int 1339 ustir_set_params(void *h, struct irda_params *p) 1340 { 1341 struct ustir_softc *sc = h; 1342 struct ustir_speedrec const *speedblk; 1343 int i; 1344 1345 DPRINTFN(0, ("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__, 1346 sc, p->speed, p->ebofs, p->maxsize)); 1347 1348 if (sc->sc_dying) 1349 return EIO; 1350 1351 speedblk = NULL; 1352 1353 if (sc->sc_speedrec == NULL || p->speed != sc->sc_speedrec->speed) { 1354 /* find speed */ 1355 for (i = 0; i < USTIR_NSPEEDS; i++) { 1356 if (ustir_speeds[i].speed == p->speed) { 1357 speedblk = &ustir_speeds[i]; 1358 goto found2; 1359 } 1360 } 1361 /* no good value found */ 1362 return EINVAL; 1363 found2: 1364 ; 1365 } 1366 if (p->maxsize != sc->sc_params.maxsize) { 1367 if (p->maxsize > IRDA_MAX_FRAME_SIZE) 1368 return EINVAL; 1369 sc->sc_params.maxsize = p->maxsize; 1370 } 1371 1372 sc->sc_params = *p; 1373 1374 if (speedblk != NULL) { 1375 usbd_status err; 1376 u_int8_t regmode; 1377 u_int8_t regbrate; 1378 1379 sc->sc_speedrec = speedblk; 1380 1381 regmode = STIR_BRMODE_MODEREG(speedblk->config); 1382 regbrate = STIR_BRMODE_BRATEREG(speedblk->config); 1383 1384 /* 1385 * FFSPRST must be set to enable the FIFO. 1386 */ 1387 regmode |= STIR_RMODE_FFSPRST; 1388 1389 DPRINTFN(10, ("%s: setting BRATE = %x\n", __func__, 1390 (unsigned int)regbrate)); 1391 err = ustir_write_reg(sc, STIR_REG_BRATE, regbrate); 1392 if (!err) { 1393 DPRINTFN(10, ("%s: setting MODE = %x\n", __func__, 1394 (unsigned int)regmode)); 1395 err = ustir_write_reg(sc, STIR_REG_MODE, regmode); 1396 } 1397 if (err) { 1398 DPRINTFN(10, ("%s: error setting register: %s\n", 1399 __func__, usbd_errstr(err))); 1400 return EIO; 1401 } 1402 } 1403 1404 return 0; 1405 } 1406 1407 Static int 1408 ustir_get_speeds(void *h, int *speeds) 1409 { 1410 struct ustir_softc *sc = h; 1411 1412 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1413 1414 if (sc->sc_dying) 1415 return EIO; 1416 1417 /* All these speeds are supported */ 1418 *speeds = IRDA_SPEED_4000000 | 1419 IRDA_SPEED_1152000 | 1420 IRDA_SPEED_576000 | 1421 IRDA_SPEED_115200 | 1422 IRDA_SPEED_57600 | 1423 IRDA_SPEED_38400 | 1424 IRDA_SPEED_19200 | 1425 IRDA_SPEED_9600 | 1426 IRDA_SPEED_2400; 1427 1428 return 0; 1429 } 1430 1431 Static int 1432 ustir_get_turnarounds(void *h, int *turnarounds) 1433 { 1434 struct ustir_softc *sc = h; 1435 1436 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1437 1438 if (sc->sc_dying) 1439 return EIO; 1440 1441 /* 1442 * Documentation is on the light side with respect to 1443 * turnaround time for this device. 1444 */ 1445 *turnarounds = IRDA_TURNT_10000; 1446 1447 return 0; 1448 } 1449
Indexes created Fri Sep 26 20:09:58 GMT 2025