oboe.c revision 1.31
1 /* $NetBSD: oboe.c,v 1.31 2008/04/10 19:13:37 cegger Exp $ */ 2 3 /* XXXXFVDL THIS DRIVER IS BROKEN FOR NON-i386 -- vtophys() usage */ 4 5 /*- 6 * Copyright (c) 2001 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Jan Sparud. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * Toshiba OBOE IrDA SIR/FIR driver. 43 * 44 * Based on information from the Linux driver, thus the magic hex numbers. 45 */ 46 47 #include <sys/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: oboe.c,v 1.31 2008/04/10 19:13:37 cegger Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/device.h> 54 #include <sys/malloc.h> 55 #include <sys/tty.h> 56 #include <sys/vnode.h> 57 #include <sys/poll.h> 58 #include <sys/proc.h> 59 60 #include <dev/ir/ir.h> 61 #include <dev/ir/irdaio.h> 62 #include <dev/ir/irframevar.h> 63 #include <dev/ir/sir.h> 64 65 #include <dev/pci/pcidevs.h> 66 #include <dev/pci/pcivar.h> 67 68 #include <sys/bus.h> 69 #include <sys/intr.h> 70 #include <uvm/uvm_extern.h> 71 72 #include <dev/pci/oboereg.h> 73 74 static int oboe_match(struct device *parent, struct cfdata *match, void *aux); 75 static void oboe_attach(struct device *parent, struct device *self, void *aux); 76 static int oboe_activate(struct device *self, enum devact act); 77 static int oboe_detach(struct device *self, int flags); 78 79 static int oboe_open(void *h, int flag, int mode, struct lwp *l); 80 static int oboe_close(void *h, int flag, int mode, struct lwp *l); 81 static int oboe_read(void *h, struct uio *uio, int flag); 82 static int oboe_write(void *h, struct uio *uio, int flag); 83 static int oboe_set_params(void *h, struct irda_params *params); 84 static int oboe_get_speeds(void *h, int *speeds); 85 static int oboe_get_turnarounds(void *h, int *times); 86 static int oboe_poll(void *h, int events, struct lwp *l); 87 static int oboe_kqfilter(void *h, struct knote *kn); 88 89 #ifdef OBOE_DEBUG 90 #define DPRINTF(x) if (oboedebug) printf x 91 int oboedebug = 1; 92 #else 93 #define DPRINTF(x) 94 #endif 95 96 struct oboe_dma; 97 98 struct oboe_softc { 99 struct device sc_dev; 100 struct device *sc_child; 101 struct pci_attach_args sc_pa; 102 pci_intr_handle_t * sc_ih; 103 unsigned int sc_revision; /* PCI Revision ID */ 104 /* I/O Base device */ 105 bus_space_tag_t sc_iot; 106 bus_space_handle_t sc_ioh; 107 bus_dma_tag_t sc_dmatag; 108 struct selinfo sc_rsel; 109 struct selinfo sc_wsel; 110 111 int sc_state; 112 #define OBOE_RSLP 0x01 /* waiting for data (read) */ 113 #define OBOE_WSLP 0x02 /* waiting for data (write) */ 114 #define OBOE_CLOSING 0x04 /* waiting for output to drain */ 115 116 int sc_speeds; 117 int sc_flags; 118 int sc_speed; 119 int sc_ebofs; 120 121 struct oboe_dma *sc_dmas; 122 struct OboeTaskFile *sc_taskfile; /* The taskfile */ 123 u_char * sc_xmit_bufs[TX_SLOTS]; 124 u_char * sc_recv_bufs[RX_SLOTS]; 125 void * sc_xmit_stores[TX_SLOTS]; 126 void * sc_recv_stores[RX_SLOTS]; 127 int sc_txs; /* Current transmit slot number */ 128 int sc_rxs; /* Current receive slot number */ 129 int sc_saved; /* number of saved frames */ 130 int sc_lens[RX_SLOTS]; 131 132 int sc_txpending; 133 134 /* Statistics */ 135 int sc_txpackets; 136 int sc_rxpackets; 137 int sc_txerrors; 138 int sc_rxerrors; 139 }; 140 141 static int oboe_intr(void *handle); 142 static int oboe_reset(struct oboe_softc *); 143 144 struct oboe_dma { 145 bus_dmamap_t map; 146 void *addr; 147 bus_dma_segment_t segs[1]; 148 int nsegs; 149 size_t size; 150 struct oboe_dma *next; 151 }; 152 153 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) 154 #define KERNADDR(p) ((void *)((p)->addr)) 155 156 static int oboe_alloc_taskfile(struct oboe_softc *); 157 static void oboe_init_taskfile(struct oboe_softc *); 158 static void oboe_startchip(struct oboe_softc *); 159 static void oboe_stopchip(struct oboe_softc *); 160 static int oboe_setbaud(struct oboe_softc *, int); 161 162 CFATTACH_DECL(oboe, sizeof(struct oboe_softc), 163 oboe_match, oboe_attach, oboe_detach, oboe_activate); 164 165 static struct irframe_methods oboe_methods = { 166 oboe_open, oboe_close, oboe_read, oboe_write, oboe_poll, 167 oboe_kqfilter, oboe_set_params, oboe_get_speeds, oboe_get_turnarounds 168 }; 169 170 static int 171 oboe_match(struct device *parent, struct cfdata *match, 172 void *aux) 173 { 174 struct pci_attach_args *pa = aux; 175 176 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 177 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 178 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 179 return (1); 180 return 0; 181 } 182 183 static void 184 oboe_attach(struct device *parent, struct device *self, void *aux) 185 { 186 struct oboe_softc *sc = (struct oboe_softc *)self; 187 struct pci_attach_args *pa = aux; 188 pci_intr_handle_t ih; 189 struct ir_attach_args ia; 190 const char *intrstring; 191 192 sc->sc_revision = PCI_REVISION(pa->pa_class); 193 printf(": Toshiba Fast Infrared Type O, revision %d\n", 194 sc->sc_revision); 195 196 /* Map I/O registers. */ 197 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 198 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 199 aprint_error_dev(&sc->sc_dev, "can't map I/O space\n"); 200 return; 201 } 202 203 sc->sc_dmatag = pa->pa_dmat; 204 205 ia.ia_type = IR_TYPE_IRFRAME; 206 ia.ia_methods = &oboe_methods; 207 ia.ia_handle = sc; 208 209 sc->sc_state = 0; 210 sc->sc_speed = IRDA_SPEED_9600; 211 212 /* Enable the device */ 213 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 214 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 215 PCI_COMMAND_MASTER_ENABLE); 216 217 /* Reset the device; bail out upon failure. */ 218 if (oboe_reset(sc) != 0) { 219 aprint_error_dev(&sc->sc_dev, "can't reset\n"); 220 return; 221 } 222 /* Map and establish the interrupt. */ 223 if (pci_intr_map(pa, &ih)) { 224 aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n"); 225 return; 226 } 227 intrstring = pci_intr_string(pa->pa_pc, ih); 228 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_IR, oboe_intr, sc); 229 if (sc->sc_ih == NULL) { 230 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt"); 231 if (intrstring != NULL) 232 printf(" at %s", intrstring); 233 printf("\n"); 234 return; 235 } 236 printf("%s: interrupting at %s\n", device_xname(&sc->sc_dev), intrstring); 237 238 selinit(&sc->sc_rsel); 239 selinit(&sc->sc_wsel); 240 241 sc->sc_txs = 0; 242 sc->sc_rxs = 0; 243 244 sc->sc_speeds = 245 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 246 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 247 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 248 249 oboe_alloc_taskfile(sc); 250 251 sc->sc_child = config_found((void *)sc, &ia, ir_print); 252 } 253 254 static int 255 oboe_activate(struct device *self, enum devact act) 256 { 257 struct oboe_softc *sc = (struct oboe_softc *)self; 258 int error = 0; 259 260 DPRINTF(("%s: sc=%p\n", __func__, sc)); 261 262 switch (act) { 263 case DVACT_ACTIVATE: 264 return (EOPNOTSUPP); 265 break; 266 267 case DVACT_DEACTIVATE: 268 if (sc->sc_child != NULL) 269 error = config_deactivate(sc->sc_child); 270 break; 271 } 272 return (error); 273 } 274 275 static int 276 oboe_detach(struct device *self, int flags) 277 { 278 struct oboe_softc *sc = (struct oboe_softc *)self; 279 280 #ifdef OBOE_DEBUG 281 /* XXX needs reference counting for proper detach. */ 282 DPRINTF(("%s: sc=%p\n", __func__, sc)); 283 #endif 284 seldestroy(&sc->sc_rsel); 285 seldestroy(&sc->sc_wsel); 286 return (0); 287 } 288 289 static int 290 oboe_open(void *h, int flag, int mode, struct lwp *l) 291 { 292 struct oboe_softc *sc = h; 293 294 DPRINTF(("%s: sc=%p\n", __func__, sc)); 295 296 sc->sc_state = 0; 297 sc->sc_saved = 0; 298 oboe_init_taskfile(sc); 299 oboe_startchip(sc); 300 301 return (0); 302 } 303 304 static int 305 oboe_close(void *h, int flag, int mode, 306 struct lwp *l) 307 { 308 struct oboe_softc *sc = h; 309 int error = 0; 310 int s = splir(); 311 312 DPRINTF(("%s: sc=%p\n", __func__, sc)); 313 /* Wait for output to drain */ 314 315 if (sc->sc_txpending > 0) { 316 sc->sc_state |= OBOE_CLOSING; 317 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 318 } 319 splx(s); 320 321 oboe_stopchip(sc); 322 return (error); 323 } 324 325 static int 326 oboe_read(void *h, struct uio *uio, int flag) 327 { 328 struct oboe_softc *sc = h; 329 int error = 0; 330 int s; 331 int slot; 332 333 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 334 __func__, uio->uio_resid, uio->uio_iovcnt, 335 (long)uio->uio_offset)); 336 337 s = splir(); 338 while (sc->sc_saved == 0) { 339 if (flag & IO_NDELAY) { 340 splx(s); 341 return (EWOULDBLOCK); 342 } 343 sc->sc_state |= OBOE_RSLP; 344 DPRINTF(("oboe_read: sleep\n")); 345 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 346 DPRINTF(("oboe_read: woke, error=%d\n", error)); 347 if (error) { 348 sc->sc_state &= ~OBOE_RSLP; 349 break; 350 } 351 } 352 353 /* Do just one frame transfer per read */ 354 355 if (!error) { 356 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 357 if (uio->uio_resid < sc->sc_lens[slot]) { 358 DPRINTF(("oboe_read: uio buffer smaller than frame size" 359 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 360 error = EINVAL; 361 } else { 362 DPRINTF(("oboe_read: moving %d bytes from %p\n", 363 sc->sc_lens[slot], 364 sc->sc_recv_stores[slot])); 365 error = uiomove(sc->sc_recv_stores[slot], 366 sc->sc_lens[slot], uio); 367 } 368 } 369 sc->sc_saved--; 370 splx(s); 371 372 return (error); 373 } 374 375 static int 376 oboe_write(void *h, struct uio *uio, int flag) 377 { 378 struct oboe_softc *sc = h; 379 int error = 0; 380 int n; 381 int s = splir(); 382 383 DPRINTF(("%s: sc=%p\n", __func__, sc)); 384 while (sc->sc_txpending == TX_SLOTS) { 385 if (flag & IO_NDELAY) { 386 splx(s); 387 return (EWOULDBLOCK); 388 } 389 sc->sc_state |= OBOE_WSLP; 390 DPRINTF(("oboe_write: sleep\n")); 391 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 392 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 393 if (error) { 394 sc->sc_state &= ~OBOE_WSLP; 395 break; 396 } 397 } 398 if (error) 399 goto err; 400 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 401 DPRINTF(("oboe_write: slot overrun\n")); 402 } 403 404 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 405 sc->sc_ebofs); 406 if (n < 0) { 407 error = -n; 408 goto err; 409 } 410 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 411 412 OUTB(sc, 0, OBOE_RST); 413 OUTB(sc, 0x1e, OBOE_REG_11); 414 415 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 416 417 /* XXX Need delay here??? */ 418 delay(1000); 419 420 sc->sc_txpending++; 421 OUTB(sc, 0x80, OBOE_RST); 422 OUTB(sc, 1, OBOE_REG_9); 423 sc->sc_txs++; 424 sc->sc_txs %= TX_SLOTS; 425 426 err: 427 splx(s); 428 return (error); 429 } 430 431 static int 432 oboe_set_params(void *h, struct irda_params *p) 433 { 434 struct oboe_softc *sc = h; 435 int error; 436 437 if (p->speed > 0) { 438 error = oboe_setbaud(sc, p->speed); 439 if (error) 440 return (error); 441 } 442 sc->sc_ebofs = p->ebofs; 443 444 /* XXX ignore ebofs and maxsize for now */ 445 return (0); 446 } 447 448 static int 449 oboe_get_speeds(void *h, int *speeds) 450 { 451 struct oboe_softc *sc = h; 452 *speeds = sc->sc_speeds; 453 return (0); 454 } 455 456 static int 457 oboe_get_turnarounds(void *h, int *turnarounds) 458 { 459 #ifdef OBOE_DEBUG 460 struct oboe_softc *sc = h; 461 DPRINTF(("%s: sc=%p\n", __func__, sc)); 462 #endif 463 464 /* XXX Linux driver sets all bits */ 465 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 466 467 return (0); 468 } 469 470 static int 471 oboe_poll(void *h, int events, struct lwp *l) 472 { 473 struct oboe_softc *sc = h; 474 int revents = 0; 475 int s; 476 477 DPRINTF(("%s: sc=%p\n", __func__, sc)); 478 479 s = splir(); 480 if (events & (POLLOUT | POLLWRNORM)) 481 revents |= events & (POLLOUT | POLLWRNORM); 482 if (events & (POLLIN | POLLRDNORM)) { 483 if (sc->sc_saved > 0) { 484 DPRINTF(("%s: have data\n", __func__)); 485 revents |= events & (POLLIN | POLLRDNORM); 486 } else { 487 DPRINTF(("%s: recording select\n", __func__)); 488 selrecord(l, &sc->sc_rsel); 489 } 490 } 491 splx(s); 492 493 return (revents); 494 } 495 496 static void 497 filt_oboerdetach(struct knote *kn) 498 { 499 struct oboe_softc *sc = kn->kn_hook; 500 int s; 501 502 s = splir(); 503 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 504 splx(s); 505 } 506 507 static int 508 filt_oboeread(struct knote *kn, long hint) 509 { 510 struct oboe_softc *sc = kn->kn_hook; 511 512 kn->kn_data = sc->sc_saved; 513 return (kn->kn_data > 0); 514 } 515 516 static void 517 filt_oboewdetach(struct knote *kn) 518 { 519 struct oboe_softc *sc = kn->kn_hook; 520 int s; 521 522 s = splir(); 523 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 524 splx(s); 525 } 526 527 static const struct filterops oboeread_filtops = 528 { 1, NULL, filt_oboerdetach, filt_oboeread }; 529 static const struct filterops oboewrite_filtops = 530 { 1, NULL, filt_oboewdetach, filt_seltrue }; 531 532 static int 533 oboe_kqfilter(void *h, struct knote *kn) 534 { 535 struct oboe_softc *sc = h; 536 struct klist *klist; 537 int s; 538 539 switch (kn->kn_filter) { 540 case EVFILT_READ: 541 klist = &sc->sc_rsel.sel_klist; 542 kn->kn_fop = &oboeread_filtops; 543 break; 544 case EVFILT_WRITE: 545 klist = &sc->sc_wsel.sel_klist; 546 kn->kn_fop = &oboewrite_filtops; 547 break; 548 default: 549 return (EINVAL); 550 } 551 552 kn->kn_hook = sc; 553 554 s = splir(); 555 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 556 splx(s); 557 558 return (0); 559 } 560 561 static int 562 oboe_reset(struct oboe_softc *sc) 563 { 564 #if 0 565 OUTB(sc, 0x00, OBOE_RST); 566 OUTB(sc, 0x80, OBOE_RST); 567 #endif 568 return 0; 569 } 570 571 static int 572 oboe_intr(void *p) 573 { 574 struct oboe_softc *sc = p; 575 uint8_t irqstat = INB(sc, OBOE_ISR); 576 577 if (!(irqstat & 0xf8)) 578 return (0); /* Not for me? */ 579 580 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 581 582 OUTB(sc, irqstat, OBOE_ISR); 583 584 if (irqstat & OBOE_ISR_RXDONE) { 585 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 586 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 587 if (sc->sc_saved == RX_SLOTS) { 588 DPRINTF(("oboe_intr: all buffers filled\n")); 589 return 0; 590 } 591 592 if (len > 2) 593 len -= 2; /* JSP: skip check sum? */ 594 595 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 596 sc->sc_recv_stores[sc->sc_rxs])); 597 memcpy(sc->sc_recv_stores[sc->sc_rxs], 598 sc->sc_recv_bufs[sc->sc_rxs], 599 len); 600 sc->sc_lens[sc->sc_rxs] = len; 601 sc->sc_saved++; 602 #if 0 603 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 604 len, &sc->sc_q); 605 #endif 606 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 607 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 608 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 609 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 610 } 611 DPRINTF(("oboe_intr no more frames available\n")); 612 if (sc->sc_state & OBOE_RSLP) { 613 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 614 sc->sc_state &= ~OBOE_RSLP; 615 DPRINTF(("oboe_intr: waking up reader\n")); 616 wakeup(&sc->sc_rxs); 617 } 618 selnotify(&sc->sc_rsel, 0, 0); 619 DPRINTF(("oboe_intr returning\n")); 620 } 621 if (irqstat & OBOE_ISR_TXDONE) { 622 DPRINTF(("oboe_intr: write done\n")); 623 sc->sc_txpending--; 624 sc->sc_txpackets++; 625 626 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 627 wakeup(&sc->sc_state); 628 return 1; 629 } 630 631 if (sc->sc_state & OBOE_WSLP) { 632 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 633 sc->sc_state &= ~OBOE_WSLP; 634 DPRINTF(("oboe_intr: waking up writer\n")); 635 wakeup(&sc->sc_txs); 636 } 637 selnotify(&sc->sc_wsel, 0, 0); 638 } 639 return (1); 640 } 641 642 /* XXX vtophys must go! */ 643 static void 644 oboe_init_taskfile(struct oboe_softc *sc) 645 { 646 int i; 647 int s = splir(); 648 649 for (i = 0; i < TX_SLOTS; ++i) { 650 sc->sc_taskfile->xmit[i].len = 0; 651 sc->sc_taskfile->xmit[i].control = 0x00; 652 sc->sc_taskfile->xmit[i].buffer = 653 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 654 } 655 656 for (i = 0; i < RX_SLOTS; ++i) { 657 sc->sc_taskfile->recv[i].len = 0; 658 sc->sc_taskfile->recv[i].control = 0x83; 659 sc->sc_taskfile->recv[i].buffer = 660 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 661 } 662 663 sc->sc_txpending = 0; 664 665 splx(s); 666 } 667 668 static int 669 oboe_alloc_taskfile(struct oboe_softc *sc) 670 { 671 int i; 672 /* XXX */ 673 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 674 if (addr == 0) { 675 goto bad; 676 } 677 addr &= ~(sizeof (struct OboeTaskFile) - 1); 678 addr += sizeof (struct OboeTaskFile); 679 sc->sc_taskfile = (struct OboeTaskFile *) addr; 680 681 for (i = 0; i < TX_SLOTS; ++i) { 682 sc->sc_xmit_bufs[i] = 683 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 684 sc->sc_xmit_stores[i] = 685 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 686 if (sc->sc_xmit_bufs[i] == NULL || 687 sc->sc_xmit_stores[i] == NULL) { 688 goto bad; 689 } 690 } 691 for (i = 0; i < RX_SLOTS; ++i) { 692 sc->sc_recv_bufs[i] = 693 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 694 sc->sc_recv_stores[i] = 695 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 696 if (sc->sc_recv_bufs[i] == NULL || 697 sc->sc_recv_stores[i] == NULL) { 698 goto bad; 699 } 700 } 701 702 return 0; 703 bad: 704 printf("oboe: malloc for buffers failed()\n"); 705 return 1; 706 } 707 708 static void 709 oboe_startchip (struct oboe_softc *sc) 710 { 711 uint32_t physaddr; 712 713 OUTB(sc, 0, OBOE_LOCK); 714 OUTB(sc, 0, OBOE_RST); 715 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 716 OUTB(sc, 0xf0, OBOE_REG_D); 717 OUTB(sc, 0xff, OBOE_ISR); 718 OUTB(sc, 0x0f, OBOE_REG_1A); 719 OUTB(sc, 0xff, OBOE_REG_1B); 720 721 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 722 723 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 724 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 725 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 726 727 OUTB(sc, 0x0e, OBOE_REG_11); 728 OUTB(sc, 0x80, OBOE_RST); 729 730 (void)oboe_setbaud(sc, 9600); 731 732 sc->sc_rxs = INB(sc, OBOE_RCVT); 733 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 734 sc->sc_rxs = 0; 735 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 736 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 737 sc->sc_txs = 0; 738 } 739 740 static void 741 oboe_stopchip (struct oboe_softc *sc) 742 { 743 OUTB(sc, 0x0e, OBOE_REG_11); 744 OUTB(sc, 0x00, OBOE_RST); 745 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 746 OUTB(sc, 0xff, OBOE_TFP1); 747 OUTB(sc, 0xff, OBOE_TFP0); 748 OUTB(sc, 0x0f, OBOE_REG_1B); 749 OUTB(sc, 0xff, OBOE_REG_1A); 750 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 751 OUTB(sc, 0x80, OBOE_RST); 752 OUTB(sc, 0x0e, OBOE_LOCK); 753 } 754 755 #define SPEEDCASE(speed, type, divisor) \ 756 case speed: \ 757 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 758 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 759 OUTB(sc, divisor, OBOE_UDIV); \ 760 break 761 762 static int 763 oboe_setbaud(struct oboe_softc *sc, int baud) 764 { 765 int s; 766 767 DPRINTF(("oboe: setting baud to %d\n", baud)); 768 769 s = splir(); 770 771 switch (baud) { 772 SPEEDCASE( 2400, SIR, 0xbf); 773 SPEEDCASE( 9600, SIR, 0x2f); 774 SPEEDCASE( 19200, SIR, 0x17); 775 SPEEDCASE( 38400, SIR, 0x0b); 776 SPEEDCASE( 57600, SIR, 0x07); 777 SPEEDCASE( 115200, SIR, 0x03); 778 SPEEDCASE(1152000, MIR, 0x01); 779 SPEEDCASE(4000000, FIR, 0x00); 780 default: 781 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 782 splx(s); 783 return (EINVAL); 784 } 785 786 OUTB(sc, 0x00, OBOE_RST); 787 OUTB(sc, 0x80, OBOE_RST); 788 OUTB(sc, 0x01, OBOE_REG_9); 789 790 sc->sc_speed = baud; 791 792 splx(s); 793 794 return (0); 795 } 796
Indexes created Tue Sep 30 11:09:46 GMT 2025