uirda.c revision 1.38
1 /* $NetBSD: uirda.c,v 1.38 2013/09/15 15:43:20 martin 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 Lennart Augustsson (lennart (at) augustsson.net). 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: uirda.c,v 1.38 2013/09/15 15:43:20 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/device.h> 39 #include <sys/mutex.h> 40 #include <sys/ioctl.h> 41 #include <sys/conf.h> 42 #include <sys/file.h> 43 #include <sys/poll.h> 44 #include <sys/select.h> 45 #include <sys/proc.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 #include <dev/usb/usbdi_util.h> 50 #include <dev/usb/usbdevs.h> 51 52 #include <dev/ir/ir.h> 53 #include <dev/ir/irdaio.h> 54 #include <dev/ir/irframevar.h> 55 56 #include <dev/usb/uirdavar.h> 57 58 #ifdef UIRDA_DEBUG 59 #define DPRINTF(x) if (uirdadebug) printf x 60 #define DPRINTFN(n,x) if (uirdadebug>(n)) printf x 61 int uirdadebug = 0; 62 #else 63 #define DPRINTF(x) 64 #define DPRINTFN(n,x) 65 #endif 66 67 68 /* Class specific requests */ 69 #define UR_IRDA_RECEIVING 0x01 /* Receive in progress? */ 70 #define UR_IRDA_CHECK_MEDIA_BUSY 0x03 71 #define UR_IRDA_SET_RATE_SNIFF 0x04 /* opt */ 72 #define UR_IRDA_SET_UNICAST_LIST 0x05 /* opt */ 73 #define UR_IRDA_GET_DESC 0x06 74 75 #define UIRDA_NEBOFS 8 76 static struct { 77 int count; 78 int mask; 79 int header; 80 } uirda_ebofs[UIRDA_NEBOFS] = { 81 { 0, UI_EB_0, UIRDA_EB_0 }, 82 { 1, UI_EB_1, UIRDA_EB_1 }, 83 { 2, UI_EB_2, UIRDA_EB_2 }, 84 { 3, UI_EB_3, UIRDA_EB_3 }, 85 { 6, UI_EB_6, UIRDA_EB_6 }, 86 { 12, UI_EB_12, UIRDA_EB_12 }, 87 { 24, UI_EB_24, UIRDA_EB_24 }, 88 { 48, UI_EB_48, UIRDA_EB_48 } 89 }; 90 91 #define UIRDA_NSPEEDS 9 92 static struct { 93 int speed; 94 int mask; 95 int header; 96 } uirda_speeds[UIRDA_NSPEEDS] = { 97 { 4000000, UI_BR_4000000, UIRDA_4000000 }, 98 { 1152000, UI_BR_1152000, UIRDA_1152000 }, 99 { 576000, UI_BR_576000, UIRDA_576000 }, 100 { 115200, UI_BR_115200, UIRDA_115200 }, 101 { 57600, UI_BR_57600, UIRDA_57600 }, 102 { 38400, UI_BR_38400, UIRDA_38400 }, 103 { 19200, UI_BR_19200, UIRDA_19200 }, 104 { 9600, UI_BR_9600, UIRDA_9600 }, 105 { 2400, UI_BR_2400, UIRDA_2400 }, 106 }; 107 108 109 110 int uirda_open(void *h, int flag, int mode, struct lwp *l); 111 int uirda_close(void *h, int flag, int mode, struct lwp *l); 112 int uirda_read(void *h, struct uio *uio, int flag); 113 int uirda_write(void *h, struct uio *uio, int flag); 114 int uirda_set_params(void *h, struct irda_params *params); 115 int uirda_get_speeds(void *h, int *speeds); 116 int uirda_get_turnarounds(void *h, int *times); 117 int uirda_poll(void *h, int events, struct lwp *l); 118 int uirda_kqfilter(void *h, struct knote *kn); 119 120 struct irframe_methods uirda_methods = { 121 uirda_open, uirda_close, uirda_read, uirda_write, uirda_poll, 122 uirda_kqfilter, uirda_set_params, uirda_get_speeds, 123 uirda_get_turnarounds 124 }; 125 126 void uirda_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 127 usbd_status status); 128 usbd_status uirda_start_read(struct uirda_softc *sc); 129 130 /* 131 * These devices don't quite follow the spec. Speed changing is broken 132 * and they don't handle windows. 133 * But we change speed in a safe way, and don't use windows now. 134 * Some devices also seem to have an interrupt pipe that can be ignored. 135 * 136 * Table information taken from Linux driver. 137 */ 138 Static const struct usb_devno uirda_devs[] = { 139 { USB_VENDOR_ACTISYS, USB_PRODUCT_ACTISYS_IR2000U }, 140 { USB_VENDOR_EXTENDED, USB_PRODUCT_EXTENDED_XTNDACCESS }, 141 { USB_VENDOR_KAWATSU, USB_PRODUCT_KAWATSU_KC180 }, 142 }; 143 #define uirda_lookup(v, p) (usb_lookup(uirda_devs, v, p)) 144 145 int uirda_match(device_t, cfdata_t, void *); 146 void uirda_attach(device_t, device_t, void *); 147 void uirda_childdet(device_t, device_t); 148 int uirda_detach(device_t, int); 149 int uirda_activate(device_t, enum devact); 150 extern struct cfdriver uirda_cd; 151 CFATTACH_DECL2_NEW(uirda, sizeof(struct uirda_softc), uirda_match, 152 uirda_attach, uirda_detach, uirda_activate, NULL, uirda_childdet); 153 154 int 155 uirda_match(device_t parent, cfdata_t match, void *aux) 156 { 157 struct usbif_attach_arg *uaa = aux; 158 159 DPRINTFN(50,("uirda_match\n")); 160 161 if (uirda_lookup(uaa->vendor, uaa->product) != NULL) 162 return (UMATCH_VENDOR_PRODUCT); 163 164 if (uaa->class == UICLASS_APPL_SPEC && 165 uaa->subclass == UISUBCLASS_IRDA && 166 uaa->proto == UIPROTO_IRDA) 167 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 168 return (UMATCH_NONE); 169 } 170 171 void 172 uirda_attach(device_t parent, device_t self, void *aux) 173 { 174 struct uirda_softc *sc = device_private(self); 175 struct usbif_attach_arg *uaa = aux; 176 usbd_device_handle dev = uaa->device; 177 usbd_interface_handle iface = uaa->iface; 178 char *devinfop; 179 usb_endpoint_descriptor_t *ed; 180 usbd_status err; 181 u_int8_t epcount; 182 u_int specrev; 183 int i; 184 struct ir_attach_args ia; 185 186 DPRINTFN(10,("uirda_attach: sc=%p\n", sc)); 187 188 sc->sc_dev = self; 189 190 aprint_naive("\n"); 191 aprint_normal("\n"); 192 193 devinfop = usbd_devinfo_alloc(dev, 0); 194 aprint_normal_dev(self, "%s\n", devinfop); 195 usbd_devinfo_free(devinfop); 196 197 sc->sc_udev = dev; 198 sc->sc_iface = iface; 199 200 if (sc->sc_hdszi == 0) 201 sc->sc_hdszi = UIRDA_INPUT_HEADER_SIZE; 202 203 epcount = 0; 204 (void)usbd_endpoint_count(iface, &epcount); 205 206 sc->sc_rd_addr = -1; 207 sc->sc_wr_addr = -1; 208 for (i = 0; i < epcount; i++) { 209 ed = usbd_interface2endpoint_descriptor(iface, i); 210 if (ed == NULL) { 211 aprint_error_dev(self, "couldn't get ep %d\n", i); 212 return; 213 } 214 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 215 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 216 sc->sc_rd_addr = ed->bEndpointAddress; 217 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 218 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 219 sc->sc_wr_addr = ed->bEndpointAddress; 220 } 221 } 222 if (sc->sc_rd_addr == -1 || sc->sc_wr_addr == -1) { 223 aprint_error_dev(self, "missing endpoint\n"); 224 return; 225 } 226 227 if (sc->sc_loadfw(sc) != 0) { 228 return; 229 } 230 231 /* Get the IrDA descriptor */ 232 err = usbd_get_class_desc(sc->sc_udev, UDESC_IRDA, 0, 233 USB_IRDA_DESCRIPTOR_SIZE, &sc->sc_irdadesc); 234 aprint_error_dev(self, "error %d reading class desc\n", err); 235 if (err) { 236 err = usbd_get_desc(sc->sc_udev, UDESC_IRDA, 0, 237 USB_IRDA_DESCRIPTOR_SIZE, &sc->sc_irdadesc); 238 } 239 aprint_error_dev(self, "error %d reading desc\n", err); 240 if (err) { 241 /* maybe it's embedded in the config desc? */ 242 usbd_desc_iter_t iter; 243 const usb_descriptor_t *d; 244 usb_desc_iter_init(sc->sc_udev, &iter); 245 for (;;) { 246 d = usb_desc_iter_next(&iter); 247 if (!d || d->bDescriptorType == UDESC_IRDA) 248 break; 249 } 250 if (d == NULL) { 251 aprint_error_dev(self, 252 "Cannot get IrDA descriptor\n"); 253 return; 254 } 255 memcpy(&sc->sc_irdadesc, d, USB_IRDA_DESCRIPTOR_SIZE); 256 } 257 DPRINTF(("uirda_attach: bDescriptorSize %d bDescriptorType 0x%x " 258 "bmDataSize=0x%02x bmWindowSize=0x%02x " 259 "bmMinTurnaroundTime=0x%02x wBaudRate=0x%04x " 260 "bmAdditionalBOFs=0x%02x bIrdaSniff=%d bMaxUnicastList=%d\n", 261 sc->sc_irdadesc.bLength, 262 sc->sc_irdadesc.bDescriptorType, 263 sc->sc_irdadesc.bmDataSize, 264 sc->sc_irdadesc.bmWindowSize, 265 sc->sc_irdadesc.bmMinTurnaroundTime, 266 UGETW(sc->sc_irdadesc.wBaudRate), 267 sc->sc_irdadesc.bmAdditionalBOFs, 268 sc->sc_irdadesc.bIrdaSniff, 269 sc->sc_irdadesc.bMaxUnicastList)); 270 271 specrev = UGETW(sc->sc_irdadesc.bcdSpecRevision); 272 aprint_normal_dev(self, "USB-IrDA protocol version %x.%02x\n", 273 specrev >> 8, specrev & 0xff); 274 275 DPRINTFN(10, ("uirda_attach: %p\n", sc->sc_udev)); 276 277 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 278 sc->sc_dev); 279 280 mutex_init(&sc->sc_wr_buf_lk, MUTEX_DEFAULT, IPL_NONE); 281 mutex_init(&sc->sc_rd_buf_lk, MUTEX_DEFAULT, IPL_NONE); 282 selinit(&sc->sc_rd_sel); 283 selinit(&sc->sc_wr_sel); 284 285 ia.ia_type = IR_TYPE_IRFRAME; 286 ia.ia_methods = sc->sc_irm ? sc->sc_irm : &uirda_methods; 287 ia.ia_handle = sc; 288 289 sc->sc_child = config_found(self, &ia, ir_print); 290 291 return; 292 } 293 294 int 295 uirda_detach(device_t self, int flags) 296 { 297 struct uirda_softc *sc = device_private(self); 298 int s; 299 int rv = 0; 300 301 DPRINTF(("uirda_detach: sc=%p flags=%d\n", sc, flags)); 302 303 sc->sc_dying = 1; 304 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 305 if (sc->sc_rd_pipe != NULL) { 306 usbd_abort_pipe(sc->sc_rd_pipe); 307 usbd_close_pipe(sc->sc_rd_pipe); 308 sc->sc_rd_pipe = NULL; 309 } 310 if (sc->sc_wr_pipe != NULL) { 311 usbd_abort_pipe(sc->sc_wr_pipe); 312 usbd_close_pipe(sc->sc_wr_pipe); 313 sc->sc_wr_pipe = NULL; 314 } 315 wakeup(&sc->sc_rd_count); 316 317 s = splusb(); 318 if (--sc->sc_refcnt >= 0) { 319 /* Wait for processes to go away. */ 320 usb_detach_waitold(sc->sc_dev); 321 } 322 splx(s); 323 324 if (sc->sc_child != NULL) 325 rv = config_detach(sc->sc_child, flags); 326 327 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 328 sc->sc_dev); 329 330 mutex_destroy(&sc->sc_wr_buf_lk); 331 mutex_destroy(&sc->sc_rd_buf_lk); 332 seldestroy(&sc->sc_rd_sel); 333 seldestroy(&sc->sc_wr_sel); 334 335 return (rv); 336 } 337 338 void 339 uirda_childdet(device_t self, device_t child) 340 { 341 struct uirda_softc *sc = device_private(self); 342 343 KASSERT(sc->sc_child == child); 344 sc->sc_child = NULL; 345 } 346 347 int 348 uirda_activate(device_t self, enum devact act) 349 { 350 struct uirda_softc *sc = device_private(self); 351 352 switch (act) { 353 case DVACT_DEACTIVATE: 354 sc->sc_dying = 1; 355 return 0; 356 default: 357 return EOPNOTSUPP; 358 } 359 } 360 361 int 362 uirda_open(void *h, int flag, int mode, 363 struct lwp *l) 364 { 365 struct uirda_softc *sc = h; 366 int error; 367 usbd_status err; 368 369 DPRINTF(("%s: sc=%p\n", __func__, sc)); 370 371 err = usbd_open_pipe(sc->sc_iface, sc->sc_rd_addr, 0, &sc->sc_rd_pipe); 372 if (err) { 373 error = EIO; 374 goto bad1; 375 } 376 err = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &sc->sc_wr_pipe); 377 if (err) { 378 error = EIO; 379 goto bad2; 380 } 381 sc->sc_rd_xfer = usbd_alloc_xfer(sc->sc_udev); 382 if (sc->sc_rd_xfer == NULL) { 383 error = ENOMEM; 384 goto bad3; 385 } 386 sc->sc_wr_xfer = usbd_alloc_xfer(sc->sc_udev); 387 if (sc->sc_wr_xfer == NULL) { 388 error = ENOMEM; 389 goto bad4; 390 } 391 sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, 392 IRDA_MAX_FRAME_SIZE + sc->sc_hdszi); 393 if (sc->sc_rd_buf == NULL) { 394 error = ENOMEM; 395 goto bad5; 396 } 397 sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, 398 IRDA_MAX_FRAME_SIZE + UIRDA_OUTPUT_HEADER_SIZE + 399 2 + 1 /* worst case ST-UIRDA */); 400 if (sc->sc_wr_buf == NULL) { 401 error = ENOMEM; 402 goto bad5; 403 } 404 sc->sc_rd_count = 0; 405 sc->sc_rd_err = 0; 406 sc->sc_params.speed = 0; 407 sc->sc_params.ebofs = 0; 408 sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; 409 sc->sc_wr_hdr = -1; 410 411 err = uirda_start_read(sc); 412 /* XXX check err */ 413 414 return (0); 415 416 bad5: 417 usbd_free_xfer(sc->sc_wr_xfer); 418 sc->sc_wr_xfer = NULL; 419 bad4: 420 usbd_free_xfer(sc->sc_rd_xfer); 421 sc->sc_rd_xfer = NULL; 422 bad3: 423 usbd_close_pipe(sc->sc_wr_pipe); 424 sc->sc_wr_pipe = NULL; 425 bad2: 426 usbd_close_pipe(sc->sc_rd_pipe); 427 sc->sc_rd_pipe = NULL; 428 bad1: 429 return (error); 430 } 431 432 int 433 uirda_close(void *h, int flag, int mode, 434 struct lwp *l) 435 { 436 struct uirda_softc *sc = h; 437 438 DPRINTF(("%s: sc=%p\n", __func__, sc)); 439 440 if (sc->sc_rd_pipe != NULL) { 441 usbd_abort_pipe(sc->sc_rd_pipe); 442 usbd_close_pipe(sc->sc_rd_pipe); 443 sc->sc_rd_pipe = NULL; 444 } 445 if (sc->sc_wr_pipe != NULL) { 446 usbd_abort_pipe(sc->sc_wr_pipe); 447 usbd_close_pipe(sc->sc_wr_pipe); 448 sc->sc_wr_pipe = NULL; 449 } 450 if (sc->sc_rd_xfer != NULL) { 451 usbd_free_xfer(sc->sc_rd_xfer); 452 sc->sc_rd_xfer = NULL; 453 sc->sc_rd_buf = NULL; 454 } 455 if (sc->sc_wr_xfer != NULL) { 456 usbd_free_xfer(sc->sc_wr_xfer); 457 sc->sc_wr_xfer = NULL; 458 sc->sc_wr_buf = NULL; 459 } 460 461 return (0); 462 } 463 464 int 465 uirda_read(void *h, struct uio *uio, int flag) 466 { 467 struct uirda_softc *sc = h; 468 int s; 469 int error; 470 u_int n; 471 472 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 473 474 if (sc->sc_dying) 475 return (EIO); 476 477 #ifdef DIAGNOSTIC 478 if (sc->sc_rd_buf == NULL) 479 return (EINVAL); 480 #endif 481 482 sc->sc_refcnt++; 483 484 do { 485 s = splusb(); 486 while (sc->sc_rd_count == 0) { 487 DPRINTFN(5,("uirda_read: calling tsleep()\n")); 488 error = tsleep(&sc->sc_rd_count, PZERO | PCATCH, 489 "uirdrd", 0); 490 if (sc->sc_dying) 491 error = EIO; 492 if (error) { 493 splx(s); 494 DPRINTF(("uirda_read: tsleep() = %d\n", error)); 495 goto ret; 496 } 497 } 498 splx(s); 499 500 mutex_enter(&sc->sc_rd_buf_lk); 501 n = sc->sc_rd_count - sc->sc_hdszi; 502 DPRINTFN(1,("%s: sc=%p n=%u, hdr=0x%02x\n", __func__, 503 sc, n, sc->sc_rd_buf[0])); 504 if (n > uio->uio_resid) 505 error = EINVAL; 506 else 507 error = uiomove(sc->sc_rd_buf + sc->sc_hdszi, n, uio); 508 sc->sc_rd_count = 0; 509 mutex_exit(&sc->sc_rd_buf_lk); 510 511 uirda_start_read(sc); 512 /* XXX check uirda_start_read() return value */ 513 514 } while (n == 0); 515 516 DPRINTFN(1,("uirda_read: return %d\n", error)); 517 518 ret: 519 if (--sc->sc_refcnt < 0) 520 usb_detach_wakeupold(sc->sc_dev); 521 return (error); 522 } 523 524 int 525 uirda_write(void *h, struct uio *uio, int flag) 526 { 527 struct uirda_softc *sc = h; 528 usbd_status err; 529 u_int32_t n; 530 int error = 0; 531 532 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 533 534 if (sc->sc_dying) 535 return (EIO); 536 537 #ifdef DIAGNOSTIC 538 if (sc->sc_wr_buf == NULL) 539 return (EINVAL); 540 #endif 541 542 n = uio->uio_resid; 543 if (n > sc->sc_params.maxsize) 544 return (EINVAL); 545 546 sc->sc_refcnt++; 547 mutex_enter(&sc->sc_wr_buf_lk); 548 549 sc->sc_wr_buf[0] = UIRDA_EB_NO_CHANGE | UIRDA_NO_SPEED; 550 error = uiomove(sc->sc_wr_buf + UIRDA_OUTPUT_HEADER_SIZE, n, uio); 551 if (!error) { 552 DPRINTFN(1, ("uirdawrite: transfer %d bytes\n", n)); 553 554 n += UIRDA_OUTPUT_HEADER_SIZE; 555 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 556 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 557 UIRDA_WR_TIMEOUT, 558 sc->sc_wr_buf, &n, "uirdawr"); 559 DPRINTFN(2, ("uirdawrite: err=%d\n", err)); 560 if (err) { 561 if (err == USBD_INTERRUPTED) 562 error = EINTR; 563 else if (err == USBD_TIMEOUT) 564 error = ETIMEDOUT; 565 else 566 error = EIO; 567 } 568 } 569 570 mutex_exit(&sc->sc_wr_buf_lk); 571 if (--sc->sc_refcnt < 0) 572 usb_detach_wakeupold(sc->sc_dev); 573 574 DPRINTFN(1,("%s: sc=%p done\n", __func__, sc)); 575 return (error); 576 } 577 578 int 579 uirda_poll(void *h, int events, struct lwp *l) 580 { 581 struct uirda_softc *sc = h; 582 int revents = 0; 583 int s; 584 585 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 586 587 s = splusb(); 588 if (events & (POLLOUT | POLLWRNORM)) 589 revents |= events & (POLLOUT | POLLWRNORM); 590 if (events & (POLLIN | POLLRDNORM)) { 591 if (sc->sc_rd_count != 0) { 592 DPRINTFN(2,("%s: have data\n", __func__)); 593 revents |= events & (POLLIN | POLLRDNORM); 594 } else { 595 DPRINTFN(2,("%s: recording select\n", __func__)); 596 selrecord(l, &sc->sc_rd_sel); 597 } 598 } 599 splx(s); 600 601 return (revents); 602 } 603 604 static void 605 filt_uirdardetach(struct knote *kn) 606 { 607 struct uirda_softc *sc = kn->kn_hook; 608 int s; 609 610 s = splusb(); 611 SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext); 612 splx(s); 613 } 614 615 static int 616 filt_uirdaread(struct knote *kn, long hint) 617 { 618 struct uirda_softc *sc = kn->kn_hook; 619 620 kn->kn_data = sc->sc_rd_count; 621 return (kn->kn_data > 0); 622 } 623 624 static void 625 filt_uirdawdetach(struct knote *kn) 626 { 627 struct uirda_softc *sc = kn->kn_hook; 628 int s; 629 630 s = splusb(); 631 SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext); 632 splx(s); 633 } 634 635 static const struct filterops uirdaread_filtops = 636 { 1, NULL, filt_uirdardetach, filt_uirdaread }; 637 static const struct filterops uirdawrite_filtops = 638 { 1, NULL, filt_uirdawdetach, filt_seltrue }; 639 640 int 641 uirda_kqfilter(void *h, struct knote *kn) 642 { 643 struct uirda_softc *sc = kn->kn_hook; 644 struct klist *klist; 645 int s; 646 647 switch (kn->kn_filter) { 648 case EVFILT_READ: 649 klist = &sc->sc_rd_sel.sel_klist; 650 kn->kn_fop = &uirdaread_filtops; 651 break; 652 case EVFILT_WRITE: 653 klist = &sc->sc_wr_sel.sel_klist; 654 kn->kn_fop = &uirdawrite_filtops; 655 break; 656 default: 657 return (EINVAL); 658 } 659 660 kn->kn_hook = sc; 661 662 s = splusb(); 663 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 664 splx(s); 665 666 return (0); 667 } 668 669 int 670 uirda_set_params(void *h, struct irda_params *p) 671 { 672 struct uirda_softc *sc = h; 673 usbd_status err; 674 int i; 675 u_int8_t hdr; 676 u_int32_t n; 677 u_int mask; 678 679 DPRINTF(("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__, 680 sc, p->speed, p->ebofs, p->maxsize)); 681 682 if (sc->sc_dying) 683 return (EIO); 684 685 hdr = 0; 686 if (p->ebofs != sc->sc_params.ebofs) { 687 /* round up ebofs */ 688 mask = 1 /* sc->sc_irdadesc.bmAdditionalBOFs*/; 689 DPRINTF(("u.s.p.: mask=0x%x, sc->ebofs=%d, p->ebofs=%d\n", 690 mask, sc->sc_params.ebofs, p->ebofs)); 691 for (i = 0; i < UIRDA_NEBOFS; i++) { 692 DPRINTF(("u.s.p.: u_e[%d].mask=0x%x, count=%d\n", 693 i, uirda_ebofs[i].mask, uirda_ebofs[i].count)); 694 if ((mask & uirda_ebofs[i].mask) && 695 uirda_ebofs[i].count >= p->ebofs) { 696 hdr = uirda_ebofs[i].header; 697 goto found1; 698 } 699 } 700 for (i = 0; i < UIRDA_NEBOFS; i++) { 701 DPRINTF(("u.s.p.: u_e[%d].mask=0x%x, count=%d\n", 702 i, uirda_ebofs[i].mask, uirda_ebofs[i].count)); 703 if ((mask & uirda_ebofs[i].mask)) { 704 hdr = uirda_ebofs[i].header; 705 goto found1; 706 } 707 } 708 /* no good value found */ 709 return (EINVAL); 710 found1: 711 DPRINTF(("uirda_set_params: ebofs hdr=0x%02x\n", hdr)); 712 ; 713 714 } 715 if (hdr != 0 || p->speed != sc->sc_params.speed) { 716 /* find speed */ 717 mask = UGETW(sc->sc_irdadesc.wBaudRate); 718 for (i = 0; i < UIRDA_NSPEEDS; i++) { 719 if ((mask & uirda_speeds[i].mask) && 720 uirda_speeds[i].speed == p->speed) { 721 hdr |= uirda_speeds[i].header; 722 goto found2; 723 } 724 } 725 /* no good value found */ 726 return (EINVAL); 727 found2: 728 DPRINTF(("uirda_set_params: speed hdr=0x%02x\n", hdr)); 729 ; 730 } 731 if (p->maxsize != sc->sc_params.maxsize) { 732 if (p->maxsize > IRDA_MAX_FRAME_SIZE) 733 return (EINVAL); 734 sc->sc_params.maxsize = p->maxsize; 735 #if 0 736 DPRINTF(("%s: new buffers, old size=%d\n", __func__, 737 sc->sc_params.maxsize)); 738 if (p->maxsize > 10000 || p < 0) /* XXX */ 739 return (EINVAL); 740 741 /* Change the write buffer */ 742 mutex_enter(&sc->sc_wr_buf_lk); 743 if (sc->sc_wr_buf != NULL) 744 usbd_free_buffer(sc->sc_wr_xfer); 745 sc->sc_wr_buf = usbd_alloc_buffer(sc->sc_wr_xfer, p->maxsize+1); 746 mutex_exit(&sc->sc_wr_buf_lk); 747 if (sc->sc_wr_buf == NULL) 748 return (ENOMEM); 749 750 /* Change the read buffer */ 751 mutex_enter(&sc->sc_rd_buf_lk); 752 usbd_abort_pipe(sc->sc_rd_pipe); 753 if (sc->sc_rd_buf != NULL) 754 usbd_free_buffer(sc->sc_rd_xfer); 755 sc->sc_rd_buf = usbd_alloc_buffer(sc->sc_rd_xfer, p->maxsize+1); 756 sc->sc_rd_count = 0; 757 if (sc->sc_rd_buf == NULL) { 758 mutex_exit(&sc->sc_rd_buf_lk); 759 return (ENOMEM); 760 } 761 sc->sc_params.maxsize = p->maxsize; 762 err = uirda_start_read(sc); /* XXX check */ 763 mutex_exit(&sc->sc_rd_buf_lk); 764 #endif 765 } 766 if (hdr != 0 && hdr != sc->sc_wr_hdr) { 767 /* 768 * A change has occurred, transmit a 0 length frame with 769 * the new settings. The 0 length frame is not sent to the 770 * device. 771 */ 772 DPRINTF(("%s: sc=%p setting header 0x%02x\n", 773 __func__, sc, hdr)); 774 sc->sc_wr_hdr = hdr; 775 mutex_enter(&sc->sc_wr_buf_lk); 776 sc->sc_wr_buf[0] = hdr; 777 n = UIRDA_OUTPUT_HEADER_SIZE; 778 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 779 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 780 UIRDA_WR_TIMEOUT, sc->sc_wr_buf, &n, "uirdast"); 781 if (err) { 782 aprint_error_dev(sc->sc_dev, "set failed, err=%d\n", 783 err); 784 usbd_clear_endpoint_stall(sc->sc_wr_pipe); 785 } 786 mutex_exit(&sc->sc_wr_buf_lk); 787 } 788 789 sc->sc_params = *p; 790 791 return (0); 792 } 793 794 int 795 uirda_get_speeds(void *h, int *speeds) 796 { 797 struct uirda_softc *sc = h; 798 u_int isp; 799 u_int usp; 800 801 DPRINTF(("%s: sc=%p\n", __func__, sc)); 802 803 if (sc->sc_dying) 804 return (EIO); 805 806 usp = UGETW(sc->sc_irdadesc.wBaudRate); 807 isp = 0; 808 if (usp & UI_BR_4000000) isp |= IRDA_SPEED_4000000; 809 if (usp & UI_BR_1152000) isp |= IRDA_SPEED_1152000; 810 if (usp & UI_BR_576000) isp |= IRDA_SPEED_576000; 811 if (usp & UI_BR_115200) isp |= IRDA_SPEED_115200; 812 if (usp & UI_BR_57600) isp |= IRDA_SPEED_57600; 813 if (usp & UI_BR_38400) isp |= IRDA_SPEED_38400; 814 if (usp & UI_BR_19200) isp |= IRDA_SPEED_19200; 815 if (usp & UI_BR_9600) isp |= IRDA_SPEED_9600; 816 if (usp & UI_BR_2400) isp |= IRDA_SPEED_2400; 817 *speeds = isp; 818 DPRINTF(("%s: speeds = 0x%x\n", __func__, isp)); 819 return (0); 820 } 821 822 int 823 uirda_get_turnarounds(void *h, int *turnarounds) 824 { 825 struct uirda_softc *sc = h; 826 u_int ita; 827 u_int uta; 828 829 DPRINTF(("%s: sc=%p\n", __func__, sc)); 830 831 if (sc->sc_dying) 832 return (EIO); 833 834 uta = sc->sc_irdadesc.bmMinTurnaroundTime; 835 ita = 0; 836 if (uta & UI_TA_0) ita |= IRDA_TURNT_0; 837 if (uta & UI_TA_10) ita |= IRDA_TURNT_10; 838 if (uta & UI_TA_50) ita |= IRDA_TURNT_50; 839 if (uta & UI_TA_100) ita |= IRDA_TURNT_100; 840 if (uta & UI_TA_500) ita |= IRDA_TURNT_500; 841 if (uta & UI_TA_1000) ita |= IRDA_TURNT_1000; 842 if (uta & UI_TA_5000) ita |= IRDA_TURNT_5000; 843 if (uta & UI_TA_10000) ita |= IRDA_TURNT_10000; 844 *turnarounds = ita; 845 return (0); 846 } 847 848 void 849 uirda_rd_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 850 usbd_status status) 851 { 852 struct uirda_softc *sc = priv; 853 u_int32_t size; 854 855 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 856 857 if (status == USBD_CANCELLED) /* this is normal */ 858 return; 859 if (status) { 860 size = sc->sc_hdszi; 861 sc->sc_rd_err = 1; 862 } else { 863 usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); 864 } 865 DPRINTFN(1,("%s: sc=%p size=%u, err=%d\n", __func__, sc, size, 866 sc->sc_rd_err)); 867 sc->sc_rd_count = size; 868 wakeup(&sc->sc_rd_count); /* XXX should use flag */ 869 selnotify(&sc->sc_rd_sel, 0, 0); 870 } 871 872 usbd_status 873 uirda_start_read(struct uirda_softc *sc) 874 { 875 usbd_status err; 876 877 DPRINTFN(1,("%s: sc=%p, size=%d\n", __func__, sc, 878 sc->sc_params.maxsize + UIRDA_INPUT_HEADER_SIZE)); 879 880 if (sc->sc_dying) 881 return (USBD_IOERROR); 882 883 if (sc->sc_rd_err) { 884 sc->sc_rd_err = 0; 885 DPRINTF(("uirda_start_read: clear stall\n")); 886 usbd_clear_endpoint_stall(sc->sc_rd_pipe); 887 } 888 889 usbd_setup_xfer(sc->sc_rd_xfer, sc->sc_rd_pipe, sc, sc->sc_rd_buf, 890 sc->sc_params.maxsize + sc->sc_hdszi, 891 USBD_SHORT_XFER_OK | USBD_NO_COPY, 892 USBD_NO_TIMEOUT, uirda_rd_cb); 893 err = usbd_transfer(sc->sc_rd_xfer); 894 if (err != USBD_IN_PROGRESS) { 895 DPRINTF(("uirda_start_read: err=%d\n", err)); 896 return (err); 897 } 898 return (USBD_NORMAL_COMPLETION); 899 } 900 901 usbd_status 902 usbd_get_class_desc(usbd_device_handle dev, int type, int index, int len, void *desc) 903 { 904 usb_device_request_t req; 905 906 DPRINTFN(3,("usbd_get_desc: type=%d, index=%d, len=%d\n", 907 type, index, len)); 908 909 req.bmRequestType = 0xa1; /* XXX ? */ 910 req.bRequest = UR_GET_DESCRIPTOR; 911 USETW2(req.wValue, type, index); 912 USETW(req.wIndex, 0); 913 USETW(req.wLength, len); 914 return (usbd_do_request(dev, &req, desc)); 915 } 916
Indexes created Thu Sep 25 16:09:42 GMT 2025