uirda.c revision 1.38.6.8
1 /* $NetBSD: uirda.c,v 1.38.6.8 2015/10/06 21:32:15 skrll 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 1.38.6.8 2015/10/06 21:32:15 skrll 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 *, int, int, struct lwp *); 111 int uirda_close(void *, int, int, struct lwp *); 112 int uirda_read(void *, struct uio *, int); 113 int uirda_write(void *, struct uio *, int); 114 int uirda_set_params(void *, struct irda_params *); 115 int uirda_get_speeds(void *, int *); 116 int uirda_get_turnarounds(void *, int *); 117 int uirda_poll(void *, int, struct lwp *); 118 int uirda_kqfilter(void *, struct knote *); 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(struct usbd_xfer *xfer, void *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 *uiaa = aux; 158 159 DPRINTFN(50,("uirda_match\n")); 160 161 if (uirda_lookup(uiaa->uiaa_vendor, uiaa->uiaa_product) != NULL) 162 return UMATCH_VENDOR_PRODUCT; 163 164 if (uiaa->uiaa_class == UICLASS_APPL_SPEC && 165 uiaa->uiaa_subclass == UISUBCLASS_IRDA && 166 uiaa->uiaa_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 *uiaa = aux; 176 struct usbd_device * dev = uiaa->uiaa_device; 177 struct usbd_interface *iface = uiaa->uiaa_iface; 178 char *devinfop; 179 usb_endpoint_descriptor_t *ed; 180 usbd_status err; 181 uint8_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 error = usbd_create_xfer(sc->sc_rd_pipe, 382 IRDA_MAX_FRAME_SIZE + sc->sc_hdszi, USBD_SHORT_XFER_OK, 0, 383 &sc->sc_rd_xfer); 384 if (error) 385 goto bad3; 386 sc->sc_rd_buf = usbd_get_buffer(sc->sc_rd_xfer); 387 388 /* worst case ST-UIRDA length */ 389 error = usbd_create_xfer(sc->sc_wr_pipe, 390 IRDA_MAX_FRAME_SIZE + UIRDA_OUTPUT_HEADER_SIZE + 2 + 1, 391 USBD_FORCE_SHORT_XFER, 0, &sc->sc_wr_xfer); 392 if (error) 393 goto bad4; 394 sc->sc_wr_buf = usbd_get_buffer(sc->sc_wr_xfer); 395 396 sc->sc_rd_count = 0; 397 sc->sc_rd_err = 0; 398 sc->sc_params.speed = 0; 399 sc->sc_params.ebofs = 0; 400 sc->sc_params.maxsize = IRDA_MAX_FRAME_SIZE; 401 sc->sc_wr_hdr = -1; 402 403 err = uirda_start_read(sc); 404 /* XXX check err */ 405 406 return 0; 407 408 bad4: 409 usbd_destroy_xfer(sc->sc_rd_xfer); 410 sc->sc_rd_xfer = NULL; 411 bad3: 412 usbd_close_pipe(sc->sc_wr_pipe); 413 sc->sc_wr_pipe = NULL; 414 bad2: 415 usbd_close_pipe(sc->sc_rd_pipe); 416 sc->sc_rd_pipe = NULL; 417 bad1: 418 return error; 419 } 420 421 int 422 uirda_close(void *h, int flag, int mode, 423 struct lwp *l) 424 { 425 struct uirda_softc *sc = h; 426 427 DPRINTF(("%s: sc=%p\n", __func__, sc)); 428 429 if (sc->sc_rd_pipe != NULL) { 430 usbd_abort_pipe(sc->sc_rd_pipe); 431 usbd_close_pipe(sc->sc_rd_pipe); 432 sc->sc_rd_pipe = NULL; 433 } 434 if (sc->sc_wr_pipe != NULL) { 435 usbd_abort_pipe(sc->sc_wr_pipe); 436 usbd_close_pipe(sc->sc_wr_pipe); 437 sc->sc_wr_pipe = NULL; 438 } 439 if (sc->sc_rd_xfer != NULL) { 440 usbd_destroy_xfer(sc->sc_rd_xfer); 441 sc->sc_rd_xfer = NULL; 442 sc->sc_rd_buf = NULL; 443 } 444 if (sc->sc_wr_xfer != NULL) { 445 usbd_destroy_xfer(sc->sc_wr_xfer); 446 sc->sc_wr_xfer = NULL; 447 sc->sc_wr_buf = NULL; 448 } 449 450 return 0; 451 } 452 453 int 454 uirda_read(void *h, struct uio *uio, int flag) 455 { 456 struct uirda_softc *sc = h; 457 int s; 458 int error; 459 u_int n; 460 461 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 462 463 if (sc->sc_dying) 464 return EIO; 465 466 #ifdef DIAGNOSTIC 467 if (sc->sc_rd_buf == NULL) 468 return EINVAL; 469 #endif 470 471 sc->sc_refcnt++; 472 473 do { 474 s = splusb(); 475 while (sc->sc_rd_count == 0) { 476 DPRINTFN(5,("uirda_read: calling tsleep()\n")); 477 error = tsleep(&sc->sc_rd_count, PZERO | PCATCH, 478 "uirdrd", 0); 479 if (sc->sc_dying) 480 error = EIO; 481 if (error) { 482 splx(s); 483 DPRINTF(("uirda_read: tsleep() = %d\n", error)); 484 goto ret; 485 } 486 } 487 splx(s); 488 489 mutex_enter(&sc->sc_rd_buf_lk); 490 n = sc->sc_rd_count - sc->sc_hdszi; 491 DPRINTFN(1,("%s: sc=%p n=%u, hdr=0x%02x\n", __func__, 492 sc, n, sc->sc_rd_buf[0])); 493 if (n > uio->uio_resid) 494 error = EINVAL; 495 else 496 error = uiomove(sc->sc_rd_buf + sc->sc_hdszi, n, uio); 497 sc->sc_rd_count = 0; 498 mutex_exit(&sc->sc_rd_buf_lk); 499 500 uirda_start_read(sc); 501 /* XXX check uirda_start_read() return value */ 502 503 } while (n == 0); 504 505 DPRINTFN(1,("uirda_read: return %d\n", error)); 506 507 ret: 508 if (--sc->sc_refcnt < 0) 509 usb_detach_wakeupold(sc->sc_dev); 510 return error; 511 } 512 513 int 514 uirda_write(void *h, struct uio *uio, int flag) 515 { 516 struct uirda_softc *sc = h; 517 usbd_status err; 518 uint32_t n; 519 int error = 0; 520 521 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 522 523 if (sc->sc_dying) 524 return EIO; 525 526 #ifdef DIAGNOSTIC 527 if (sc->sc_wr_buf == NULL) 528 return EINVAL; 529 #endif 530 531 n = uio->uio_resid; 532 if (n > sc->sc_params.maxsize) 533 return EINVAL; 534 535 sc->sc_refcnt++; 536 mutex_enter(&sc->sc_wr_buf_lk); 537 538 sc->sc_wr_buf[0] = UIRDA_EB_NO_CHANGE | UIRDA_NO_SPEED; 539 error = uiomove(sc->sc_wr_buf + UIRDA_OUTPUT_HEADER_SIZE, n, uio); 540 if (error) 541 goto done; 542 543 DPRINTFN(1, ("uirdawrite: transfer %d bytes\n", n)); 544 545 n += UIRDA_OUTPUT_HEADER_SIZE; 546 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 547 USBD_FORCE_SHORT_XFER, UIRDA_WR_TIMEOUT, sc->sc_wr_buf, &n); 548 DPRINTFN(2, ("uirdawrite: err=%d\n", err)); 549 if (err) { 550 if (err == USBD_INTERRUPTED) 551 error = EINTR; 552 else if (err == USBD_TIMEOUT) 553 error = ETIMEDOUT; 554 else 555 error = EIO; 556 } 557 done: 558 mutex_exit(&sc->sc_wr_buf_lk); 559 if (--sc->sc_refcnt < 0) 560 usb_detach_wakeupold(sc->sc_dev); 561 562 DPRINTFN(1,("%s: sc=%p done\n", __func__, sc)); 563 return error; 564 } 565 566 int 567 uirda_poll(void *h, int events, struct lwp *l) 568 { 569 struct uirda_softc *sc = h; 570 int revents = 0; 571 int s; 572 573 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 574 575 s = splusb(); 576 if (events & (POLLOUT | POLLWRNORM)) 577 revents |= events & (POLLOUT | POLLWRNORM); 578 if (events & (POLLIN | POLLRDNORM)) { 579 if (sc->sc_rd_count != 0) { 580 DPRINTFN(2,("%s: have data\n", __func__)); 581 revents |= events & (POLLIN | POLLRDNORM); 582 } else { 583 DPRINTFN(2,("%s: recording select\n", __func__)); 584 selrecord(l, &sc->sc_rd_sel); 585 } 586 } 587 splx(s); 588 589 return revents; 590 } 591 592 static void 593 filt_uirdardetach(struct knote *kn) 594 { 595 struct uirda_softc *sc = kn->kn_hook; 596 int s; 597 598 s = splusb(); 599 SLIST_REMOVE(&sc->sc_rd_sel.sel_klist, kn, knote, kn_selnext); 600 splx(s); 601 } 602 603 static int 604 filt_uirdaread(struct knote *kn, long hint) 605 { 606 struct uirda_softc *sc = kn->kn_hook; 607 608 kn->kn_data = sc->sc_rd_count; 609 return kn->kn_data > 0; 610 } 611 612 static void 613 filt_uirdawdetach(struct knote *kn) 614 { 615 struct uirda_softc *sc = kn->kn_hook; 616 int s; 617 618 s = splusb(); 619 SLIST_REMOVE(&sc->sc_wr_sel.sel_klist, kn, knote, kn_selnext); 620 splx(s); 621 } 622 623 static const struct filterops uirdaread_filtops = 624 { 1, NULL, filt_uirdardetach, filt_uirdaread }; 625 static const struct filterops uirdawrite_filtops = 626 { 1, NULL, filt_uirdawdetach, filt_seltrue }; 627 628 int 629 uirda_kqfilter(void *h, struct knote *kn) 630 { 631 struct uirda_softc *sc = kn->kn_hook; 632 struct klist *klist; 633 int s; 634 635 switch (kn->kn_filter) { 636 case EVFILT_READ: 637 klist = &sc->sc_rd_sel.sel_klist; 638 kn->kn_fop = &uirdaread_filtops; 639 break; 640 case EVFILT_WRITE: 641 klist = &sc->sc_wr_sel.sel_klist; 642 kn->kn_fop = &uirdawrite_filtops; 643 break; 644 default: 645 return EINVAL; 646 } 647 648 kn->kn_hook = sc; 649 650 s = splusb(); 651 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 652 splx(s); 653 654 return 0; 655 } 656 657 int 658 uirda_set_params(void *h, struct irda_params *p) 659 { 660 struct uirda_softc *sc = h; 661 usbd_status err; 662 int i; 663 uint8_t hdr; 664 uint32_t n; 665 u_int mask; 666 667 DPRINTF(("%s: sc=%p, speed=%d ebofs=%d maxsize=%d\n", __func__, 668 sc, p->speed, p->ebofs, p->maxsize)); 669 670 if (sc->sc_dying) 671 return EIO; 672 673 hdr = 0; 674 if (p->ebofs != sc->sc_params.ebofs) { 675 /* round up ebofs */ 676 mask = 1 /* sc->sc_irdadesc.bmAdditionalBOFs*/; 677 DPRINTF(("u.s.p.: mask=0x%x, sc->ebofs=%d, p->ebofs=%d\n", 678 mask, sc->sc_params.ebofs, p->ebofs)); 679 for (i = 0; i < UIRDA_NEBOFS; i++) { 680 DPRINTF(("u.s.p.: u_e[%d].mask=0x%x, count=%d\n", 681 i, uirda_ebofs[i].mask, uirda_ebofs[i].count)); 682 if ((mask & uirda_ebofs[i].mask) && 683 uirda_ebofs[i].count >= p->ebofs) { 684 hdr = uirda_ebofs[i].header; 685 goto found1; 686 } 687 } 688 for (i = 0; i < UIRDA_NEBOFS; i++) { 689 DPRINTF(("u.s.p.: u_e[%d].mask=0x%x, count=%d\n", 690 i, uirda_ebofs[i].mask, uirda_ebofs[i].count)); 691 if ((mask & uirda_ebofs[i].mask)) { 692 hdr = uirda_ebofs[i].header; 693 goto found1; 694 } 695 } 696 /* no good value found */ 697 return EINVAL; 698 found1: 699 DPRINTF(("uirda_set_params: ebofs hdr=0x%02x\n", hdr)); 700 ; 701 702 } 703 if (hdr != 0 || p->speed != sc->sc_params.speed) { 704 /* find speed */ 705 mask = UGETW(sc->sc_irdadesc.wBaudRate); 706 for (i = 0; i < UIRDA_NSPEEDS; i++) { 707 if ((mask & uirda_speeds[i].mask) && 708 uirda_speeds[i].speed == p->speed) { 709 hdr |= uirda_speeds[i].header; 710 goto found2; 711 } 712 } 713 /* no good value found */ 714 return EINVAL; 715 found2: 716 DPRINTF(("uirda_set_params: speed hdr=0x%02x\n", hdr)); 717 ; 718 } 719 if (p->maxsize != sc->sc_params.maxsize) { 720 if (p->maxsize > IRDA_MAX_FRAME_SIZE) 721 return EINVAL; 722 sc->sc_params.maxsize = p->maxsize; 723 #if 0 724 DPRINTF(("%s: new buffers, old size=%d\n", __func__, 725 sc->sc_params.maxsize)); 726 if (p->maxsize > 10000 || p < 0) /* XXX */ 727 return EINVAL; 728 729 /* Change the write buffer */ 730 mutex_enter(&sc->sc_wr_buf_lk); 731 if (sc->sc_wr_buf != NULL) 732 usbd_free_buffer(sc->sc_wr_xfer); 733 sc->sc_wr_buf = usbd_get_buffer(sc->sc_wr_xfer, p->maxsize+1); 734 mutex_exit(&sc->sc_wr_buf_lk); 735 if (sc->sc_wr_buf == NULL) 736 return ENOMEM; 737 738 /* Change the read buffer */ 739 mutex_enter(&sc->sc_rd_buf_lk); 740 usbd_abort_pipe(sc->sc_rd_pipe); 741 if (sc->sc_rd_buf != NULL) 742 usbd_free_buffer(sc->sc_rd_xfer); 743 sc->sc_rd_buf = usbd_get_buffer(sc->sc_rd_xfer, p->maxsize+1); 744 sc->sc_rd_count = 0; 745 if (sc->sc_rd_buf == NULL) { 746 mutex_exit(&sc->sc_rd_buf_lk); 747 return ENOMEM; 748 } 749 sc->sc_params.maxsize = p->maxsize; 750 err = uirda_start_read(sc); /* XXX check */ 751 mutex_exit(&sc->sc_rd_buf_lk); 752 #endif 753 } 754 if (hdr != 0 && hdr != sc->sc_wr_hdr) { 755 /* 756 * A change has occurred, transmit a 0 length frame with 757 * the new settings. The 0 length frame is not sent to the 758 * device. 759 */ 760 DPRINTF(("%s: sc=%p setting header 0x%02x\n", 761 __func__, sc, hdr)); 762 sc->sc_wr_hdr = hdr; 763 mutex_enter(&sc->sc_wr_buf_lk); 764 sc->sc_wr_buf[0] = hdr; 765 n = UIRDA_OUTPUT_HEADER_SIZE; 766 err = usbd_bulk_transfer(sc->sc_wr_xfer, sc->sc_wr_pipe, 767 USBD_FORCE_SHORT_XFER, UIRDA_WR_TIMEOUT, 768 sc->sc_wr_buf, &n); 769 if (err) { 770 aprint_error_dev(sc->sc_dev, "set failed, err=%d\n", 771 err); 772 usbd_clear_endpoint_stall(sc->sc_wr_pipe); 773 } 774 mutex_exit(&sc->sc_wr_buf_lk); 775 } 776 777 sc->sc_params = *p; 778 779 return 0; 780 } 781 782 int 783 uirda_get_speeds(void *h, int *speeds) 784 { 785 struct uirda_softc *sc = h; 786 u_int isp; 787 u_int usp; 788 789 DPRINTF(("%s: sc=%p\n", __func__, sc)); 790 791 if (sc->sc_dying) 792 return EIO; 793 794 usp = UGETW(sc->sc_irdadesc.wBaudRate); 795 isp = 0; 796 if (usp & UI_BR_4000000) isp |= IRDA_SPEED_4000000; 797 if (usp & UI_BR_1152000) isp |= IRDA_SPEED_1152000; 798 if (usp & UI_BR_576000) isp |= IRDA_SPEED_576000; 799 if (usp & UI_BR_115200) isp |= IRDA_SPEED_115200; 800 if (usp & UI_BR_57600) isp |= IRDA_SPEED_57600; 801 if (usp & UI_BR_38400) isp |= IRDA_SPEED_38400; 802 if (usp & UI_BR_19200) isp |= IRDA_SPEED_19200; 803 if (usp & UI_BR_9600) isp |= IRDA_SPEED_9600; 804 if (usp & UI_BR_2400) isp |= IRDA_SPEED_2400; 805 *speeds = isp; 806 DPRINTF(("%s: speeds = 0x%x\n", __func__, isp)); 807 return 0; 808 } 809 810 int 811 uirda_get_turnarounds(void *h, int *turnarounds) 812 { 813 struct uirda_softc *sc = h; 814 u_int ita; 815 u_int uta; 816 817 DPRINTF(("%s: sc=%p\n", __func__, sc)); 818 819 if (sc->sc_dying) 820 return EIO; 821 822 uta = sc->sc_irdadesc.bmMinTurnaroundTime; 823 ita = 0; 824 if (uta & UI_TA_0) ita |= IRDA_TURNT_0; 825 if (uta & UI_TA_10) ita |= IRDA_TURNT_10; 826 if (uta & UI_TA_50) ita |= IRDA_TURNT_50; 827 if (uta & UI_TA_100) ita |= IRDA_TURNT_100; 828 if (uta & UI_TA_500) ita |= IRDA_TURNT_500; 829 if (uta & UI_TA_1000) ita |= IRDA_TURNT_1000; 830 if (uta & UI_TA_5000) ita |= IRDA_TURNT_5000; 831 if (uta & UI_TA_10000) ita |= IRDA_TURNT_10000; 832 *turnarounds = ita; 833 return 0; 834 } 835 836 void 837 uirda_rd_cb(struct usbd_xfer *xfer, void *priv, 838 usbd_status status) 839 { 840 struct uirda_softc *sc = priv; 841 uint32_t size; 842 843 DPRINTFN(1,("%s: sc=%p\n", __func__, sc)); 844 845 if (status == USBD_CANCELLED) /* this is normal */ 846 return; 847 if (status) { 848 size = sc->sc_hdszi; 849 sc->sc_rd_err = 1; 850 } else { 851 usbd_get_xfer_status(xfer, NULL, NULL, &size, NULL); 852 } 853 DPRINTFN(1,("%s: sc=%p size=%u, err=%d\n", __func__, sc, size, 854 sc->sc_rd_err)); 855 sc->sc_rd_count = size; 856 wakeup(&sc->sc_rd_count); /* XXX should use flag */ 857 selnotify(&sc->sc_rd_sel, 0, 0); 858 } 859 860 usbd_status 861 uirda_start_read(struct uirda_softc *sc) 862 { 863 usbd_status err; 864 865 DPRINTFN(1,("%s: sc=%p, size=%d\n", __func__, sc, 866 sc->sc_params.maxsize + UIRDA_INPUT_HEADER_SIZE)); 867 868 if (sc->sc_dying) 869 return USBD_IOERROR; 870 871 if (sc->sc_rd_err) { 872 sc->sc_rd_err = 0; 873 DPRINTF(("uirda_start_read: clear stall\n")); 874 usbd_clear_endpoint_stall(sc->sc_rd_pipe); 875 } 876 877 usbd_setup_xfer(sc->sc_rd_xfer, sc, sc->sc_rd_buf, 878 sc->sc_params.maxsize + sc->sc_hdszi, USBD_SHORT_XFER_OK, 879 USBD_NO_TIMEOUT, uirda_rd_cb); 880 err = usbd_transfer(sc->sc_rd_xfer); 881 if (err != USBD_IN_PROGRESS) { 882 DPRINTF(("uirda_start_read: err=%d\n", err)); 883 return err; 884 } 885 return USBD_NORMAL_COMPLETION; 886 } 887 888 usbd_status 889 usbd_get_class_desc(struct usbd_device *dev, int type, int index, int len, void *desc) 890 { 891 usb_device_request_t req; 892 893 DPRINTFN(3,("usbd_get_desc: type=%d, index=%d, len=%d\n", 894 type, index, len)); 895 896 req.bmRequestType = 0xa1; /* XXX ? */ 897 req.bRequest = UR_GET_DESCRIPTOR; 898 USETW2(req.wValue, type, index); 899 USETW(req.wIndex, 0); 900 USETW(req.wLength, len); 901 return usbd_do_request(dev, &req, desc); 902 } 903
Indexes created Wed Oct 15 07:09:58 GMT 2025