ustir.c revision 1.22
1 /* $NetBSD: ustir.c,v 1.22 2008/02/18 05:24:24 dyoung 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 1.22 2008/02/18 05:24:24 dyoung 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 lwp *sc_thread; 180 struct selinfo sc_rd_sel; 181 182 u_int8_t *sc_wr_buf; 183 int sc_wr_addr; 184 int sc_wr_stalewrite; 185 usbd_xfer_handle sc_wr_xfer; 186 usbd_pipe_handle sc_wr_pipe; 187 struct selinfo sc_wr_sel; 188 189 enum { 190 udir_input, /* Receiving data */ 191 udir_output, /* Transmitting data */ 192 udir_stalled, /* Error preventing data flow */ 193 udir_idle /* Neither receiving nor transmitting */ 194 } sc_direction; 195 196 struct ustir_speedrec const *sc_speedrec; 197 198 struct device *sc_child; 199 struct irda_params sc_params; 200 201 int sc_refcnt; 202 char sc_closing; 203 char sc_dying; 204 }; 205 206 /* True if we cannot safely read data from the device */ 207 #define USTIR_BLOCK_RX_DATA(sc) ((sc)->sc_ur_framelen != 0) 208 209 #define USTIR_WR_TIMEOUT 200 210 211 Static int ustir_activate(device_ptr_t self, enum devact act); 212 Static int ustir_open(void *h, int flag, int mode, struct lwp *l); 213 Static int ustir_close(void *h, int flag, int mode, struct lwp *l); 214 Static int ustir_read(void *h, struct uio *uio, int flag); 215 Static int ustir_write(void *h, struct uio *uio, int flag); 216 Static int ustir_set_params(void *h, struct irda_params *params); 217 Static int ustir_get_speeds(void *h, int *speeds); 218 Static int ustir_get_turnarounds(void *h, int *times); 219 Static int ustir_poll(void *h, int events, struct lwp *l); 220 Static int ustir_kqfilter(void *h, struct knote *kn); 221 222 #ifdef USTIR_DEBUG_IOCTLS 223 Static int ustir_ioctl(void *h, u_long cmd, void *addr, int flag, struct lwp *l); 224 #endif 225 226 Static struct irframe_methods const ustir_methods = { 227 ustir_open, ustir_close, ustir_read, ustir_write, ustir_poll, 228 ustir_kqfilter, ustir_set_params, ustir_get_speeds, 229 ustir_get_turnarounds, 230 #ifdef USTIR_DEBUG_IOCTLS 231 ustir_ioctl 232 #endif 233 }; 234 235 Static void ustir_rd_cb(usbd_xfer_handle, usbd_private_handle, usbd_status); 236 Static usbd_status ustir_start_read(struct ustir_softc *); 237 Static void ustir_periodic(struct ustir_softc *); 238 Static void ustir_thread(void *); 239 240 Static u_int32_t 241 crc_ccitt_16(u_int32_t crcinit, u_int8_t const *buf, size_t blen) 242 { 243 while (blen-- > 0) { 244 u_int8_t chr; 245 chr = *buf++; 246 crcinit = updateFCS(crcinit, chr); 247 } 248 return crcinit; 249 } 250 251 static usbd_status 252 ustir_read_reg(struct ustir_softc *sc, unsigned int reg, u_int8_t *data) 253 { 254 usb_device_request_t req; 255 256 req.bmRequestType = UT_READ_VENDOR_DEVICE; 257 req.bRequest = STIR_CMD_READMULTIREG; 258 USETW(req.wValue, 0); 259 USETW(req.wIndex, reg); 260 USETW(req.wLength, 1); 261 262 return usbd_do_request(sc->sc_udev, &req, data); 263 } 264 265 static usbd_status 266 ustir_write_reg(struct ustir_softc *sc, unsigned int reg, u_int8_t data) 267 { 268 usb_device_request_t req; 269 270 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 271 req.bRequest = STIR_CMD_WRITESINGLEREG; 272 USETW(req.wValue, data); 273 USETW(req.wIndex, reg); 274 USETW(req.wLength, 0); 275 276 return usbd_do_request(sc->sc_udev, &req, NULL); 277 } 278 279 #ifdef USTIR_DEBUG 280 static void 281 ustir_dumpdata(u_int8_t const *data, size_t dlen, char const *desc) 282 { 283 size_t bdindex; 284 printf("%s: (%lx)", desc, (unsigned long)dlen); 285 for (bdindex = 0; bdindex < dlen; bdindex++) 286 printf(" %02x", (unsigned int)data[bdindex]); 287 printf("\n"); 288 } 289 #endif 290 291 int ustir_match(device_t, struct cfdata *, void *); 292 void ustir_attach(device_t, device_t, void *); 293 void ustir_childdet(device_t, device_t); 294 int ustir_detach(device_t, int); 295 int ustir_activate(device_t, enum devact); 296 extern struct cfdriver ustir_cd; 297 CFATTACH_DECL2(ustir, sizeof(struct ustir_softc), ustir_match, 298 ustir_attach, ustir_detach, ustir_activate, NULL, ustir_childdet); 299 300 USB_MATCH(ustir) 301 { 302 USB_MATCH_START(ustir, uaa); 303 304 DPRINTFN(50,("ustir_match\n")); 305 306 if (uaa->vendor == USB_VENDOR_SIGMATEL && 307 uaa->product == USB_PRODUCT_SIGMATEL_IRDA) 308 return UMATCH_VENDOR_PRODUCT; 309 310 return UMATCH_NONE; 311 } 312 313 USB_ATTACH(ustir) 314 { 315 USB_ATTACH_START(ustir, sc, uaa); 316 usbd_device_handle dev = uaa->device; 317 usbd_interface_handle iface; 318 char *devinfop; 319 usb_endpoint_descriptor_t *ed; 320 u_int8_t epcount; 321 int i; 322 struct ir_attach_args ia; 323 324 DPRINTFN(10,("ustir_attach: sc=%p\n", sc)); 325 326 devinfop = usbd_devinfo_alloc(dev, 0); 327 USB_ATTACH_SETUP; 328 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop); 329 usbd_devinfo_free(devinfop); 330 331 if (usbd_set_config_index(dev, 0, 1) 332 || usbd_device2interface_handle(dev, 0, &iface)) { 333 printf("%s: Configuration failed\n", USBDEVNAME(sc->sc_dev)); 334 USB_ATTACH_ERROR_RETURN; 335 } 336 337 sc->sc_udev = dev; 338 sc->sc_iface = iface; 339 340 epcount = 0; 341 (void)usbd_endpoint_count(iface, &epcount); 342 343 sc->sc_rd_addr = -1; 344 sc->sc_wr_addr = -1; 345 for (i = 0; i < epcount; i++) { 346 ed = usbd_interface2endpoint_descriptor(iface, i); 347 if (ed == NULL) { 348 printf("%s: couldn't get ep %d\n", 349 USBDEVNAME(sc->sc_dev), i); 350 USB_ATTACH_ERROR_RETURN; 351 } 352 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 353 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 354 sc->sc_rd_addr = ed->bEndpointAddress; 355 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 356 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 357 sc->sc_wr_addr = ed->bEndpointAddress; 358 } 359 } 360 if (sc->sc_rd_addr == -1 || sc->sc_wr_addr == -1) { 361 printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); 362 USB_ATTACH_ERROR_RETURN; 363 } 364 365 DPRINTFN(10, ("ustir_attach: %p\n", sc->sc_udev)); 366 367 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 368 USBDEV(sc->sc_dev)); 369 370 ia.ia_type = IR_TYPE_IRFRAME; 371 ia.ia_methods = &ustir_methods; 372 ia.ia_handle = sc; 373 374 sc->sc_child = config_found(self, &ia, ir_print); 375 376 USB_ATTACH_SUCCESS_RETURN; 377 } 378 379 void 380 ustir_childdet(device_t self, device_t child) 381 { 382 struct ustir_softc *sc = device_private(self); 383 384 KASSERT(sc->sc_child == child); 385 sc->sc_child = NULL; 386 } 387 388 USB_DETACH(ustir) 389 { 390 USB_DETACH_START(ustir, sc); 391 int s; 392 int rv = 0; 393 394 DPRINTFN(0, ("ustir_detach: sc=%p flags=%d\n", sc, flags)); 395 396 sc->sc_closing = sc->sc_dying = 1; 397 398 wakeup(&sc->sc_thread); 399 400 while (sc->sc_thread != NULL) 401 tsleep(&sc->sc_closing, PWAIT, "usircl", 0); 402 403 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 404 if (sc->sc_rd_pipe != NULL) { 405 usbd_abort_pipe(sc->sc_rd_pipe); 406 usbd_close_pipe(sc->sc_rd_pipe); 407 sc->sc_rd_pipe = NULL; 408 } 409 if (sc->sc_wr_pipe != NULL) { 410 usbd_abort_pipe(sc->sc_wr_pipe); 411 usbd_close_pipe(sc->sc_wr_pipe); 412 sc->sc_wr_pipe = NULL; 413 } 414 wakeup(&sc->sc_ur_framelen); 415 wakeup(&sc->sc_wr_buf); 416 417 s = splusb(); 418 if (--sc->sc_refcnt >= 0) { 419 /* Wait for processes to go away. */ 420 usb_detach_wait(USBDEV(sc->sc_dev)); 421 } 422 splx(s); 423 424 if (sc->sc_child != NULL) 425 rv = config_detach(sc->sc_child, flags); 426 427 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 428 USBDEV(sc->sc_dev)); 429 430 return rv; 431 } 432 433 Static void 434 deframe_clear(struct framestate *fstate) 435 { 436 fstate->bufindex = 0; 437 fstate->fsmstate = FSTATE_END_OF_FRAME; 438 fstate->escaped = 0; 439 } 440 441 Static void 442 deframe_init(struct framestate *fstate, struct framedefn const *definition, 443 u_int8_t *buf, size_t buflen) 444 { 445 fstate->definition = definition; 446 fstate->buffer = buf; 447 fstate->buflen = buflen; 448 449 deframe_clear(fstate); 450 } 451 452 Static enum frameresult 453 deframe_process(struct framestate *fstate, u_int8_t const **bptr, size_t *blen) 454 { 455 struct framedefn const *definition; 456 u_int8_t const *cptr; 457 u_int8_t escchr; 458 size_t ibuflen, obufindex, obuflen; 459 enum framefsmstate fsmstate; 460 enum frameresult result; 461 462 cptr = *bptr; 463 fsmstate = fstate->fsmstate; 464 definition = fstate->definition; 465 escchr = definition->esc_byte; 466 obufindex = fstate->bufindex; 467 obuflen = fstate->buflen; 468 ibuflen = *blen; 469 470 while (ibuflen-- > 0) { 471 u_int8_t chr; 472 473 chr = *cptr++; 474 475 if (fstate->escaped) { 476 fstate->escaped = 0; 477 chr ^= definition->esc_xor; 478 } else if (chr == escchr) { 479 fstate->escaped = 1; 480 continue; 481 } 482 483 switch (fsmstate) { 484 case FSTATE_IN_DATA: 485 if (chr == definition->eof_byte) { 486 fsmstate = FSTATE_IN_END; 487 fstate->state_index = definition->eof_count; 488 goto state_in_end; 489 } 490 if (obufindex >= obuflen) { 491 result = FR_BUFFEROVERRUN; 492 fsmstate = FSTATE_END_OF_FRAME; 493 goto complete; 494 } 495 fstate->buffer[obufindex++] = chr; 496 break; 497 498 state_in_end: 499 /* FALLTHROUGH */ 500 501 case FSTATE_IN_END: 502 if (--fstate->state_index == 0) { 503 u_int32_t crc; 504 size_t fcslen; 505 506 fsmstate = FSTATE_END_OF_FRAME; 507 508 fcslen = definition->fcs_count; 509 510 if (obufindex < fcslen) { 511 result = FR_FRAMEMALFORMED; 512 goto complete; 513 } 514 515 crc = definition-> 516 fcs_calc(definition->fcs_init, 517 fstate->buffer, obufindex); 518 519 /* Remove check bytes from buffer length */ 520 obufindex -= fcslen; 521 522 if (crc == definition->fcs_correct) 523 result = FR_FRAMEOK; 524 else 525 result = FR_FRAMEBADFCS; 526 527 goto complete; 528 } 529 break; 530 531 case FSTATE_END_OF_FRAME: 532 if (chr != definition->bof_byte) 533 break; 534 535 fsmstate = FSTATE_START_OF_FRAME; 536 fstate->state_index = definition->bof_count; 537 /* FALLTHROUGH */ 538 case FSTATE_START_OF_FRAME: 539 if (--fstate->state_index == 0) { 540 fsmstate = FSTATE_IN_DATA; 541 obufindex = 0; 542 } 543 break; 544 } 545 } 546 547 result = (fsmstate == FSTATE_END_OF_FRAME) ? FR_IDLE : FR_INPROGRESS; 548 549 complete: 550 fstate->bufindex = obufindex; 551 fstate->fsmstate = fsmstate; 552 *blen = ibuflen; 553 554 return result; 555 } 556 557 /* Returns 0 if more data required, 1 if a complete frame was extracted */ 558 static int 559 deframe_rd_ur(struct ustir_softc *sc) 560 { 561 while (sc->sc_rd_index < sc->sc_rd_count) { 562 u_int8_t const *buf; 563 size_t buflen; 564 enum frameresult fresult; 565 566 buf = &sc->sc_rd_buf[sc->sc_rd_index]; 567 buflen = sc->sc_rd_count - sc->sc_rd_index; 568 569 fresult = deframe_process(&sc->sc_framestate, &buf, &buflen); 570 571 sc->sc_rd_index = sc->sc_rd_count - buflen; 572 573 DPRINTFN(1,("%s: result=%d\n", __func__, (int)fresult)); 574 575 switch (fresult) { 576 case FR_IDLE: 577 case FR_INPROGRESS: 578 case FR_FRAMEBADFCS: 579 case FR_FRAMEMALFORMED: 580 case FR_BUFFEROVERRUN: 581 break; 582 case FR_FRAMEOK: 583 sc->sc_ur_framelen = sc->sc_framestate.bufindex; 584 wakeup(&sc->sc_ur_framelen); /* XXX should use flag */ 585 selnotify(&sc->sc_rd_sel, 0); 586 return 1; 587 } 588 } 589 590 /* Reset indices into USB-side buffer */ 591 sc->sc_rd_index = sc->sc_rd_count = 0; 592 593 return 0; 594 } 595 596 /* 597 * Direction transitions: 598 * 599 * ustir_periodic() can switch the direction from: 600 * 601 * output -> idle 602 * output -> stalled 603 * stalled -> idle 604 * idle -> input 605 * 606 * ustir_rd_cb() can switch the direction from: 607 * 608 * input -> stalled 609 * input -> idle 610 * 611 * ustir_write() can switch the direction from: 612 * 613 * idle -> output 614 */ 615 Static void 616 ustir_periodic(struct ustir_softc *sc) 617 { 618 DPRINTFN(60, ("%s: direction = %d\n", 619 __func__, sc->sc_direction)); 620 621 if (sc->sc_direction == udir_output || 622 sc->sc_direction == udir_stalled) { 623 usbd_status err; 624 u_int8_t regval; 625 626 DPRINTFN(60, ("%s: reading status register\n", 627 __func__)); 628 629 err = ustir_read_reg(sc, STIR_REG_STATUS, 630 ®val); 631 if (err != USBD_NORMAL_COMPLETION) { 632 printf("%s: status register read failed: %s\n", 633 USBDEVNAME(sc->sc_dev), 634 usbd_errstr(err)); 635 } else { 636 DPRINTFN(10, ("%s: status register = 0x%x\n", 637 __func__, 638 (unsigned int)regval)); 639 if (sc->sc_direction == udir_output && 640 !(regval & STIR_RSTATUS_FFDIR)) 641 /* Output has completed */ 642 sc->sc_direction = udir_idle; 643 if (regval & STIR_RSTATUS_FFOVER) { 644 /* 645 * On an overrun the FIFO hangs, and 646 * any data bulk transfers will stall. 647 * Reset the FIFO. 648 */ 649 sc->sc_direction = udir_stalled; 650 651 DPRINTFN(10, ("%s: clearing FIFO error\n", 652 __func__)); 653 654 err = ustir_write_reg(sc, STIR_REG_STATUS, 655 STIR_RSTATUS_FFCLR); 656 /* XXX if we fail partway through 657 * this, we may not recover? */ 658 if (err == USBD_NORMAL_COMPLETION) 659 err = ustir_write_reg(sc, 660 STIR_REG_STATUS, 661 0); 662 if (err != USBD_NORMAL_COMPLETION) { 663 printf("%s: FIFO reset failed: %s\n", 664 USBDEVNAME(sc->sc_dev), 665 usbd_errstr(err)); 666 } else { 667 /* FIFO reset */ 668 sc->sc_direction = udir_idle; 669 } 670 } 671 } 672 } 673 674 if (sc->sc_wr_stalewrite && sc->sc_direction == udir_idle) { 675 /* 676 * In a stale write case, we need to check if the 677 * write has completed. Once that has happened, the 678 * write is no longer stale. 679 * 680 * But note that we may immediately start a read poll... 681 */ 682 sc->sc_wr_stalewrite = 0; 683 wakeup(&sc->sc_wr_buf); 684 } 685 686 if (!sc->sc_rd_readinprogress && 687 (sc->sc_direction == udir_idle || 688 sc->sc_direction == udir_input)) 689 /* Do a read poll if appropriate... */ 690 ustir_start_read(sc); 691 } 692 693 Static void 694 ustir_thread(void *arg) 695 { 696 struct ustir_softc *sc = arg; 697 698 DPRINTFN(20, ("%s: starting polling thread\n", __func__)); 699 700 while (!sc->sc_closing) { 701 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 702 ustir_periodic(sc); 703 704 if (!sc->sc_closing) { 705 int error; 706 error = tsleep(&sc->sc_thread, PWAIT, 707 "ustir", hz / 10); 708 if (error == EWOULDBLOCK && 709 sc->sc_rd_expectdataticks > 0) 710 /* 711 * After a timeout decrement the tick 712 * counter within which time we expect 713 * data to arrive if we are receiving 714 * data... 715 */ 716 sc->sc_rd_expectdataticks--; 717 } 718 } 719 720 DPRINTFN(20, ("%s: exiting polling thread\n", __func__)); 721 722 sc->sc_thread = NULL; 723 724 wakeup(&sc->sc_closing); 725 726 if (--sc->sc_refcnt < 0) 727 usb_detach_wakeup(USBDEV(sc->sc_dev)); 728 729 kthread_exit(0); 730 } 731 732 Static void 733 ustir_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 734 usbd_status status) 735 { 736 struct ustir_softc *sc = priv; 737 u_int32_t size; 738 739 DPRINTFN(60, ("%s: sc=%p\n", __func__, sc)); 740 741 /* Read is no longer in progress */ 742 sc->sc_rd_readinprogress = 0; 743 744 if (status == USBD_CANCELLED || sc->sc_closing) /* this is normal */ 745 return; 746 if (status) { 747 size = 0; 748 sc->sc_rd_err = 1; 749 750 if (sc->sc_direction == udir_input || 751 sc->sc_direction == udir_idle) { 752 /* 753 * Receive error, probably need to clear error 754 * condition. 755 */ 756 sc->sc_direction = udir_stalled; 757 } 758 } else { 759 usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); 760 } 761 762 sc->sc_rd_index = 0; 763 sc->sc_rd_count = size; 764 765 DPRINTFN(((size > 0 || sc->sc_rd_err != 0) ? 20 : 60), 766 ("%s: sc=%p size=%u, err=%d\n", __func__, 767 sc, size, sc->sc_rd_err)); 768 769 #ifdef USTIR_DEBUG 770 if (ustirdebug >= 20 && size > 0) 771 ustir_dumpdata(sc->sc_rd_buf, size, __func__); 772 #endif 773 774 if (!deframe_rd_ur(sc)) { 775 if (!deframe_isclear(&sc->sc_framestate) && size == 0 && 776 sc->sc_rd_expectdataticks == 0) { 777 /* 778 * Expected data, but didn't get it 779 * within expected time... 780 */ 781 DPRINTFN(5,("%s: incoming packet timeout\n", 782 __func__)); 783 deframe_clear(&sc->sc_framestate); 784 } else if (size > 0) { 785 /* 786 * If we also received actual data, reset the 787 * data read timeout and wake up the possibly 788 * sleeping thread... 789 */ 790 sc->sc_rd_expectdataticks = 2; 791 wakeup(&sc->sc_thread); 792 } 793 } 794 795 /* 796 * Check if incoming data has stopped, or that we cannot 797 * safely read any more data. In the case of the latter we 798 * must switch to idle so that a write will not block... 799 */ 800 if (sc->sc_direction == udir_input && 801 ((size == 0 && sc->sc_rd_expectdataticks == 0) || 802 USTIR_BLOCK_RX_DATA(sc))) { 803 DPRINTFN(8,("%s: idling on packet timeout, " 804 "complete frame, or no data\n", __func__)); 805 sc->sc_direction = udir_idle; 806 807 /* Wake up for possible output */ 808 wakeup(&sc->sc_wr_buf); 809 selnotify(&sc->sc_wr_sel, 0); 810 } 811 } 812 813 Static usbd_status 814 ustir_start_read(struct ustir_softc *sc) 815 { 816 usbd_status err; 817 818 DPRINTFN(60,("%s: sc=%p, size=%d\n", __func__, sc, 819 sc->sc_params.maxsize)); 820 821 if (sc->sc_dying) 822 return USBD_IOERROR; 823 824 if (USTIR_BLOCK_RX_DATA(sc) || deframe_rd_ur(sc)) { 825 /* 826 * Can't start reading just yet. Since we aren't 827 * going to start a read, have to switch direction to 828 * idle. 829 */ 830 sc->sc_direction = udir_idle; 831 return USBD_NORMAL_COMPLETION; 832 } 833 834 /* Starting a read... */ 835 sc->sc_rd_readinprogress = 1; 836 sc->sc_direction = udir_input; 837 838 if (sc->sc_rd_err) { 839 sc->sc_rd_err = 0; 840 DPRINTFN(0, ("%s: clear stall\n", __func__)); 841 usbd_clear_endpoint_stall(sc->sc_rd_pipe); 842 } 843 844 usbd_setup_xfer(sc->sc_rd_xfer, sc->sc_rd_pipe, sc, sc->sc_rd_buf, 845 sc->sc_params.maxsize, 846 USBD_SHORT_XFER_OK | USBD_NO_COPY, 847 USBD_NO_TIMEOUT, ustir_rd_cb); 848 err = usbd_transfer(sc->sc_rd_xfer); 849 if (err != USBD_IN_PROGRESS) { 850 DPRINTFN(0, ("%s: err=%d\n", __func__, (int)err)); 851 return err; 852 } 853 return USBD_NORMAL_COMPLETION; 854 } 855 856 Static int 857 ustir_activate(device_t self, enum devact act) 858 { 859 struct ustir_softc *sc = device_private(self); 860 int error = 0; 861 862 switch (act) { 863 case DVACT_ACTIVATE: 864 return EOPNOTSUPP; 865 866 case DVACT_DEACTIVATE: 867 sc->sc_dying = 1; 868 if (sc->sc_child != NULL) 869 error = config_deactivate(sc->sc_child); 870 break; 871 } 872 return error; 873 } 874 875 /* ARGSUSED */ 876 Static int 877 ustir_open(void *h, int flag, int mode, 878 struct lwp *l) 879 { 880 struct ustir_softc *sc = h; 881 int error; 882 usbd_status err; 883 884 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 885 886 err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe); 887 if (err != USBD_NORMAL_COMPLETION) { 888 error = EIO; 889 goto bad1; 890 } 891 err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe); 892 if (err != USBD_NORMAL_COMPLETION) { 893 error = EIO; 894 goto bad2; 895 } 896 sc->sc_rd_xfer = usbd_alloc_xfer(sc->sc_udev); 897 if (sc->sc_rd_xfer == NULL) { 898 error = ENOMEM; 899 goto bad3; 900 } 901 sc->sc_wr_xfer = usbd_alloc_xfer(sc->sc_udev); 902 if (sc->sc_wr_xfer == NULL) { 903 error = ENOMEM; 904 goto bad4; 905 } 906 sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, 907 IRDA_MAX_FRAME_SIZE); 908 if (sc->sc_rd_buf == NULL) { 909 error = ENOMEM; 910 goto bad5; 911 } 912 sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, 913 IRDA_MAX_FRAME_SIZE + STIR_OUTPUT_HEADER_SIZE); 914 if (sc->sc_wr_buf == NULL) { 915 error = ENOMEM; 916 goto bad5; 917 } 918 sc->sc_ur_buf = malloc(IRDA_MAX_FRAME_SIZE, M_USBDEV, M_NOWAIT); 919 if (sc->sc_ur_buf == NULL) { 920 error = ENOMEM; 921 goto bad5; 922 } 923 924 sc->sc_rd_index = sc->sc_rd_count = 0; 925 sc->sc_closing = 0; 926 sc->sc_rd_readinprogress = 0; 927 sc->sc_rd_expectdataticks = 0; 928 sc->sc_ur_framelen = 0; 929 sc->sc_rd_err = 0; 930 sc->sc_wr_stalewrite = 0; 931 sc->sc_speedrec = NULL; 932 sc->sc_direction = udir_idle; 933 sc->sc_params.speed = 0; 934 sc->sc_params.ebofs = 0; 935 sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; 936 937 deframe_init(&sc->sc_framestate, &framedef_sir, sc->sc_ur_buf, 938 IRDA_MAX_FRAME_SIZE); 939 940 /* Increment reference for thread */ 941 sc->sc_refcnt++; 942 943 error = kthread_create(PRI_NONE, 0, NULL, ustir_thread, sc, 944 &sc->sc_thread, "%s", sc->sc_dev.dv_xname); 945 if (error) { 946 sc->sc_refcnt--; 947 goto bad5; 948 } 949 950 return 0; 951 952 bad5: 953 usbd_free_xfer(sc->sc_wr_xfer); 954 sc->sc_wr_xfer = NULL; 955 bad4: 956 usbd_free_xfer(sc->sc_rd_xfer); 957 sc->sc_rd_xfer = NULL; 958 bad3: 959 usbd_close_pipe(sc->sc_wr_pipe); 960 sc->sc_wr_pipe = NULL; 961 bad2: 962 usbd_close_pipe(sc->sc_rd_pipe); 963 sc->sc_rd_pipe = NULL; 964 bad1: 965 return error; 966 } 967 968 /* ARGSUSED */ 969 Static int 970 ustir_close(void *h, int flag, int mode, 971 struct lwp *l) 972 { 973 struct ustir_softc *sc = h; 974 975 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 976 977 sc->sc_refcnt++; 978 979 sc->sc_rd_readinprogress = 1; 980 sc->sc_closing = 1; 981 982 wakeup(&sc->sc_thread); 983 984 while (sc->sc_thread != NULL) 985 tsleep(&sc->sc_closing, PWAIT, "usircl", 0); 986 987 if (sc->sc_rd_pipe != NULL) { 988 usbd_abort_pipe(sc->sc_rd_pipe); 989 usbd_close_pipe(sc->sc_rd_pipe); 990 sc->sc_rd_pipe = NULL; 991 } 992 if (sc->sc_wr_pipe != NULL) { 993 usbd_abort_pipe(sc->sc_wr_pipe); 994 usbd_close_pipe(sc->sc_wr_pipe); 995 sc->sc_wr_pipe = NULL; 996 } 997 if (sc->sc_rd_xfer != NULL) { 998 usbd_free_xfer(sc->sc_rd_xfer); 999 sc->sc_rd_xfer = NULL; 1000 sc->sc_rd_buf = NULL; 1001 } 1002 if (sc->sc_wr_xfer != NULL) { 1003 usbd_free_xfer(sc->sc_wr_xfer); 1004 sc->sc_wr_xfer = NULL; 1005 sc->sc_wr_buf = NULL; 1006 } 1007 if (sc->sc_ur_buf != NULL) { 1008 free(sc->sc_ur_buf, M_USBDEV); 1009 sc->sc_ur_buf = NULL; 1010 } 1011 1012 if (--sc->sc_refcnt < 0) 1013 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1014 1015 return 0; 1016 } 1017 1018 /* ARGSUSED */ 1019 Static int 1020 ustir_read(void *h, struct uio *uio, int flag) 1021 { 1022 struct ustir_softc *sc = h; 1023 int s; 1024 int error; 1025 u_int uframelen; 1026 1027 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1028 1029 if (sc->sc_dying) 1030 return EIO; 1031 1032 #ifdef DIAGNOSTIC 1033 if (sc->sc_rd_buf == NULL) 1034 return EINVAL; 1035 #endif 1036 1037 sc->sc_refcnt++; 1038 1039 if (!sc->sc_rd_readinprogress && !USTIR_BLOCK_RX_DATA(sc)) 1040 /* Possibly wake up polling thread */ 1041 wakeup(&sc->sc_thread); 1042 1043 do { 1044 s = splusb(); 1045 while (sc->sc_ur_framelen == 0) { 1046 DPRINTFN(5,("%s: calling tsleep()\n", __func__)); 1047 error = tsleep(&sc->sc_ur_framelen, PZERO | PCATCH, 1048 "usirrd", 0); 1049 if (sc->sc_dying) 1050 error = EIO; 1051 if (error) { 1052 splx(s); 1053 DPRINTFN(0, ("%s: tsleep() = %d\n", 1054 __func__, error)); 1055 goto ret; 1056 } 1057 } 1058 splx(s); 1059 1060 uframelen = sc->sc_ur_framelen; 1061 DPRINTFN(1,("%s: sc=%p framelen=%u, hdr=0x%02x\n", 1062 __func__, sc, uframelen, sc->sc_ur_buf[0])); 1063 if (uframelen > uio->uio_resid) 1064 error = EINVAL; 1065 else 1066 error = uiomove(sc->sc_ur_buf, uframelen, uio); 1067 sc->sc_ur_framelen = 0; 1068 1069 if (!deframe_rd_ur(sc) && uframelen > 0) { 1070 /* 1071 * Need to wait for another read to obtain a 1072 * complete frame... If we also obtained 1073 * actual data, wake up the possibly sleeping 1074 * thread immediately... 1075 */ 1076 wakeup(&sc->sc_thread); 1077 } 1078 } while (uframelen == 0); 1079 1080 DPRINTFN(1,("%s: return %d\n", __func__, error)); 1081 1082 ret: 1083 if (--sc->sc_refcnt < 0) 1084 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1085 return error; 1086 } 1087 1088 /* ARGSUSED */ 1089 Static int 1090 ustir_write(void *h, struct uio *uio, int flag) 1091 { 1092 struct ustir_softc *sc = h; 1093 usbd_status err; 1094 u_int32_t wrlen; 1095 int error, sirlength; 1096 u_int8_t *wrbuf; 1097 int s; 1098 1099 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1100 1101 if (sc->sc_dying) 1102 return EIO; 1103 1104 #ifdef DIAGNOSTIC 1105 if (sc->sc_wr_buf == NULL) 1106 return EINVAL; 1107 #endif 1108 1109 wrlen = uio->uio_resid; 1110 if (wrlen > sc->sc_params.maxsize) 1111 return EINVAL; 1112 1113 sc->sc_refcnt++; 1114 1115 if (!USTIR_BLOCK_RX_DATA(sc)) { 1116 /* 1117 * If reads are not blocked, determine what action we 1118 * should potentially take... 1119 */ 1120 if (sc->sc_direction == udir_output) { 1121 /* 1122 * If the last operation was an output, wait for the 1123 * polling thread to check for incoming data. 1124 */ 1125 sc->sc_wr_stalewrite = 1; 1126 wakeup(&sc->sc_thread); 1127 } else if (!sc->sc_rd_readinprogress && 1128 (sc->sc_direction == udir_idle || 1129 sc->sc_direction == udir_input)) { 1130 /* If idle, check for input before outputting */ 1131 ustir_start_read(sc); 1132 } 1133 } 1134 1135 s = splusb(); 1136 while (sc->sc_wr_stalewrite || 1137 (sc->sc_direction != udir_output && 1138 sc->sc_direction != udir_idle)) { 1139 DPRINTFN(5, ("%s: sc=%p stalewrite=%d direction=%d, " 1140 "calling tsleep()\n", __func__, 1141 sc, sc->sc_wr_stalewrite, sc->sc_direction)); 1142 error = tsleep(&sc->sc_wr_buf, PZERO | PCATCH, 1143 "usirwr", 0); 1144 if (sc->sc_dying) 1145 error = EIO; 1146 if (error) { 1147 splx(s); 1148 DPRINTFN(0, ("%s: tsleep() = %d\n", __func__, 1149 error)); 1150 goto ret; 1151 } 1152 } 1153 splx(s); 1154 1155 wrbuf = sc->sc_wr_buf; 1156 1157 /* Build header */ 1158 wrbuf[0] = STIR_OUTPUT_HEADER_BYTE0; 1159 wrbuf[1] = STIR_OUTPUT_HEADER_BYTE1; 1160 1161 sirlength = irda_sir_frame(&wrbuf[STIR_OUTPUT_HEADER_SIZE], 1162 MAX_USTIR_OUTPUT_FRAME - 1163 STIR_OUTPUT_HEADER_SIZE, 1164 uio, sc->sc_params.ebofs); 1165 if (sirlength < 0) { 1166 error = -sirlength; 1167 } else { 1168 u_int32_t btlen; 1169 1170 DPRINTFN(1, ("%s: transfer %u bytes\n", __func__, 1171 (unsigned int)wrlen)); 1172 1173 wrbuf[2] = sirlength & 0xff; 1174 wrbuf[3] = (sirlength >> 8) & 0xff; 1175 1176 btlen = STIR_OUTPUT_HEADER_SIZE + sirlength; 1177 1178 sc->sc_direction = udir_output; 1179 1180 #ifdef USTIR_DEBUG 1181 if (ustirdebug >= 20) 1182 ustir_dumpdata(wrbuf, btlen, __func__); 1183 #endif 1184 1185 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 1186 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1187 USTIR_WR_TIMEOUT, 1188 wrbuf, &btlen, "ustiwr"); 1189 DPRINTFN(2, ("%s: err=%d\n", __func__, err)); 1190 if (err != USBD_NORMAL_COMPLETION) { 1191 if (err == USBD_INTERRUPTED) 1192 error = EINTR; 1193 else if (err == USBD_TIMEOUT) 1194 error = ETIMEDOUT; 1195 else 1196 error = EIO; 1197 } else { 1198 error = 0; 1199 } 1200 } 1201 1202 ret: 1203 if (--sc->sc_refcnt < 0) 1204 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1205 1206 DPRINTFN(1,("%s: sc=%p done\n", __func__, sc)); 1207 return error; 1208 } 1209 1210 Static int 1211 ustir_poll(void *h, int events, struct lwp *l) 1212 { 1213 struct ustir_softc *sc = h; 1214 int revents = 0; 1215 1216 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 1217 1218 if (events & (POLLOUT | POLLWRNORM)) { 1219 if (sc->sc_direction != udir_input) { 1220 revents |= events & (POLLOUT | POLLWRNORM); 1221 } else { 1222 DPRINTFN(2,("%s: recording write select\n", 1223 __func__)); 1224 selrecord(l, &sc->sc_wr_sel); 1225 } 1226 } 1227 1228 if (events & (POLLIN | POLLRDNORM)) { 1229 if (sc->sc_ur_framelen != 0) { 1230 DPRINTFN(2,("%s: have data\n", __func__)); 1231 revents |= events & (POLLIN | POLLRDNORM); 1232 } else { 1233 DPRINTFN(2,("%s: recording read select\n", 1234 __func__)); 1235 selrecord(l, &sc->sc_rd_sel); 1236 } 1237 } 1238 1239 return revents; 1240 } 1241 1242 static void 1243 filt_ustirrdetach(struct knote *kn) 1244 { 1245 struct ustir_softc *sc = kn->kn_hook; 1246 int s; 1247 1248 s = splusb(); 1249 SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext); 1250 splx(s); 1251 } 1252 1253 /* ARGSUSED */ 1254 static int 1255 filt_ustirread(struct knote *kn, long hint) 1256 { 1257 struct ustir_softc *sc = kn->kn_hook; 1258 1259 kn->kn_data = sc->sc_ur_framelen; 1260 return (kn->kn_data > 0); 1261 } 1262 1263 static void 1264 filt_ustirwdetach(struct knote *kn) 1265 { 1266 struct ustir_softc *sc = kn->kn_hook; 1267 int s; 1268 1269 s = splusb(); 1270 SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext); 1271 splx(s); 1272 } 1273 1274 /* ARGSUSED */ 1275 static int 1276 filt_ustirwrite(struct knote *kn, long hint) 1277 { 1278 struct ustir_softc *sc = kn->kn_hook; 1279 1280 kn->kn_data = 0; 1281 return (sc->sc_direction != udir_input); 1282 } 1283 1284 static const struct filterops ustirread_filtops = 1285 { 1, NULL, filt_ustirrdetach, filt_ustirread }; 1286 static const struct filterops ustirwrite_filtops = 1287 { 1, NULL, filt_ustirwdetach, filt_ustirwrite }; 1288 1289 Static int 1290 ustir_kqfilter(void *h, struct knote *kn) 1291 { 1292 struct ustir_softc *sc = h; 1293 struct klist *klist; 1294 int s; 1295 1296 switch (kn->kn_filter) { 1297 case EVFILT_READ: 1298 klist = &sc->sc_rd_sel.sel_klist; 1299 kn->kn_fop = &ustirread_filtops; 1300 break; 1301 case EVFILT_WRITE: 1302 klist = &sc->sc_wr_sel.sel_klist; 1303 kn->kn_fop = &ustirwrite_filtops; 1304 break; 1305 default: 1306 return (EINVAL); 1307 } 1308 1309 kn->kn_hook = sc; 1310 1311 s = splusb(); 1312 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 1313 splx(s); 1314 1315 return (0); 1316 } 1317 1318 #ifdef USTIR_DEBUG_IOCTLS 1319 Static int ustir_ioctl(void *h, u_long cmd, void *addr, int flag, struct lwp *l) 1320 { 1321 struct ustir_softc *sc = h; 1322 int error; 1323 unsigned int regnum; 1324 usbd_status err; 1325 u_int8_t regdata; 1326 1327 if (sc->sc_dying) 1328 return EIO; 1329 1330 sc->sc_refcnt++; 1331 1332 error = 0; 1333 switch (cmd) { 1334 case USTIR_READ_REGISTER: 1335 regnum = *(unsigned int *)addr; 1336 1337 if (regnum > STIR_MAX_REG) { 1338 error = EINVAL; 1339 break; 1340 } 1341 1342 err = ustir_read_reg(sc, regnum, ®data); 1343 1344 DPRINTFN(10, ("%s: regget(%u) = 0x%x\n", __func__, 1345 regnum, (unsigned int)regdata)); 1346 1347 *(unsigned int *)addr = regdata; 1348 if (err != USBD_NORMAL_COMPLETION) { 1349 printf("%s: register read failed: %s\n", 1350 USBDEVNAME(sc->sc_dev), 1351 usbd_errstr(err)); 1352 error = EIO; 1353 } 1354 break; 1355 1356 case USTIR_WRITE_REGISTER: 1357 regnum = *(unsigned int *)addr; 1358 regdata = (regnum >> 8) & 0xff; 1359 regnum = regnum & 0xff; 1360 1361 if (regnum > STIR_MAX_REG) { 1362 error = EINVAL; 1363 break; 1364 } 1365 1366 DPRINTFN(10, ("%s: regset(%u, 0x%x)\n", __func__, 1367 regnum, (unsigned int)regdata)); 1368 1369 err = ustir_write_reg(sc, regnum, regdata); 1370 if (err != USBD_NORMAL_COMPLETION) { 1371 printf("%s: register write failed: %s\n", 1372 USBDEVNAME(sc->sc_dev), 1373 usbd_errstr(err)); 1374 error = EIO; 1375 } 1376 break; 1377 1378 case USTIR_DEBUG_LEVEL: 1379 #ifdef USTIR_DEBUG 1380 ustirdebug = *(int *)addr; 1381 #endif 1382 break; 1383 1384 case USTIR_DEBUG_OPERATION: 1385 break; 1386 1387 default: 1388 error = EINVAL; 1389 break; 1390 } 1391 1392 if (--sc->sc_refcnt < 0) 1393 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1394 1395 return error; 1396 } 1397 #endif 1398 1399 Static int 1400 ustir_set_params(void *h, struct irda_params *p) 1401 { 1402 struct ustir_softc *sc = h; 1403 struct ustir_speedrec const *speedblk; 1404 int i; 1405 1406 DPRINTFN(0, ("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__, 1407 sc, p->speed, p->ebofs, p->maxsize)); 1408 1409 if (sc->sc_dying) 1410 return EIO; 1411 1412 speedblk = NULL; 1413 1414 if (sc->sc_speedrec == NULL || p->speed != sc->sc_speedrec->speed) { 1415 /* find speed */ 1416 for (i = 0; i < USTIR_NSPEEDS; i++) { 1417 if (ustir_speeds[i].speed == p->speed) { 1418 speedblk = &ustir_speeds[i]; 1419 goto found2; 1420 } 1421 } 1422 /* no good value found */ 1423 return EINVAL; 1424 found2: 1425 ; 1426 } 1427 if (p->maxsize != sc->sc_params.maxsize) { 1428 if (p->maxsize > IRDA_MAX_FRAME_SIZE) 1429 return EINVAL; 1430 sc->sc_params.maxsize = p->maxsize; 1431 } 1432 1433 sc->sc_params = *p; 1434 1435 if (speedblk != NULL) { 1436 usbd_status err; 1437 u_int8_t regmode; 1438 u_int8_t regbrate; 1439 1440 sc->sc_speedrec = speedblk; 1441 1442 regmode = STIR_BRMODE_MODEREG(speedblk->config); 1443 regbrate = STIR_BRMODE_BRATEREG(speedblk->config); 1444 1445 /* 1446 * FFSPRST must be set to enable the FIFO. 1447 */ 1448 regmode |= STIR_RMODE_FFSPRST; 1449 1450 DPRINTFN(10, ("%s: setting BRATE = %x\n", __func__, 1451 (unsigned int)regbrate)); 1452 err = ustir_write_reg(sc, STIR_REG_BRATE, regbrate); 1453 if (err == USBD_NORMAL_COMPLETION) { 1454 DPRINTFN(10, ("%s: setting MODE = %x\n", __func__, 1455 (unsigned int)regmode)); 1456 err = ustir_write_reg(sc, STIR_REG_MODE, regmode); 1457 } 1458 if (err != USBD_NORMAL_COMPLETION) { 1459 DPRINTFN(10, ("%s: error setting register: %s\n", 1460 __func__, usbd_errstr(err))); 1461 return EIO; 1462 } 1463 } 1464 1465 return 0; 1466 } 1467 1468 Static int 1469 ustir_get_speeds(void *h, int *speeds) 1470 { 1471 struct ustir_softc *sc = h; 1472 1473 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1474 1475 if (sc->sc_dying) 1476 return EIO; 1477 1478 /* All these speeds are supported */ 1479 *speeds = IRDA_SPEED_4000000 | 1480 IRDA_SPEED_1152000 | 1481 IRDA_SPEED_576000 | 1482 IRDA_SPEED_115200 | 1483 IRDA_SPEED_57600 | 1484 IRDA_SPEED_38400 | 1485 IRDA_SPEED_19200 | 1486 IRDA_SPEED_9600 | 1487 IRDA_SPEED_2400; 1488 1489 return 0; 1490 } 1491 1492 Static int 1493 ustir_get_turnarounds(void *h, int *turnarounds) 1494 { 1495 struct ustir_softc *sc = h; 1496 1497 DPRINTFN(0, ("%s: sc=%p\n", __func__, sc)); 1498 1499 if (sc->sc_dying) 1500 return EIO; 1501 1502 /* 1503 * Documentation is on the light side with respect to 1504 * turnaround time for this device. 1505 */ 1506 *turnarounds = IRDA_TURNT_10000; 1507 1508 return 0; 1509 } 1510
Indexes created Thu Sep 25 16:09:42 GMT 2025