oboe.c revision 1.51
1 /* $NetBSD: oboe.c,v 1.51 2021/09/26 14:56:36 thorpej 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Toshiba OBOE IrDA SIR/FIR driver. 36 * 37 * Based on information from the Linux driver, thus the magic hex numbers. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: oboe.c,v 1.51 2021/09/26 14:56:36 thorpej Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 #include <sys/tty.h> 49 #include <sys/vnode.h> 50 #include <sys/poll.h> 51 #include <sys/proc.h> 52 53 #include <dev/ir/ir.h> 54 #include <dev/ir/irdaio.h> 55 #include <dev/ir/irframevar.h> 56 #include <dev/ir/sir.h> 57 58 #include <dev/pci/pcidevs.h> 59 #include <dev/pci/pcivar.h> 60 61 #include <sys/bus.h> 62 #include <sys/intr.h> 63 64 #include <dev/pci/oboereg.h> 65 66 static int oboe_match(device_t parent, cfdata_t match, void *aux); 67 static void oboe_attach(device_t parent, device_t self, void *aux); 68 static int oboe_detach(device_t self, int flags); 69 70 static int oboe_open(void *h, int flag, int mode, struct lwp *l); 71 static int oboe_close(void *h, int flag, int mode, struct lwp *l); 72 static int oboe_read(void *h, struct uio *uio, int flag); 73 static int oboe_write(void *h, struct uio *uio, int flag); 74 static int oboe_set_params(void *h, struct irda_params *params); 75 static int oboe_get_speeds(void *h, int *speeds); 76 static int oboe_get_turnarounds(void *h, int *times); 77 static int oboe_poll(void *h, int events, struct lwp *l); 78 static int oboe_kqfilter(void *h, struct knote *kn); 79 80 #ifdef OBOE_DEBUG 81 #define DPRINTF(x) if (oboedebug) printf x 82 int oboedebug = 1; 83 #else 84 #define DPRINTF(x) 85 #endif 86 87 struct oboe_dma; 88 89 struct oboe_softc { 90 device_t sc_child; 91 struct pci_attach_args sc_pa; 92 pci_intr_handle_t * sc_ih; 93 unsigned int sc_revision; /* PCI Revision ID */ 94 /* I/O Base device */ 95 bus_space_tag_t sc_iot; 96 bus_space_handle_t sc_ioh; 97 bus_dma_tag_t sc_dmatag; 98 struct selinfo sc_rsel; 99 100 int sc_state; 101 #define OBOE_RSLP 0x01 /* waiting for data (read) */ 102 #define OBOE_WSLP 0x02 /* waiting for data (write) */ 103 #define OBOE_CLOSING 0x04 /* waiting for output to drain */ 104 105 int sc_speeds; 106 int sc_flags; 107 int sc_speed; 108 int sc_ebofs; 109 110 struct oboe_dma *sc_dmas; 111 struct OboeTaskFile *sc_taskfile; /* The taskfile */ 112 u_char * sc_xmit_bufs[TX_SLOTS]; 113 u_char * sc_recv_bufs[RX_SLOTS]; 114 void * sc_xmit_stores[TX_SLOTS]; 115 void * sc_recv_stores[RX_SLOTS]; 116 int sc_txs; /* Current transmit slot number */ 117 int sc_rxs; /* Current receive slot number */ 118 int sc_saved; /* number of saved frames */ 119 int sc_lens[RX_SLOTS]; 120 121 int sc_txpending; 122 123 /* Statistics */ 124 int sc_txpackets; 125 int sc_rxpackets; 126 int sc_txerrors; 127 int sc_rxerrors; 128 }; 129 130 static int oboe_intr(void *handle); 131 static int oboe_reset(struct oboe_softc *); 132 133 struct oboe_dma { 134 bus_dmamap_t map; 135 void *addr; 136 bus_dma_segment_t segs[1]; 137 int nsegs; 138 size_t size; 139 struct oboe_dma *next; 140 }; 141 142 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) 143 #define KERNADDR(p) ((void *)((p)->addr)) 144 145 static int oboe_alloc_taskfile(struct oboe_softc *); 146 static void oboe_init_taskfile(struct oboe_softc *); 147 static void oboe_startchip(struct oboe_softc *); 148 static void oboe_stopchip(struct oboe_softc *); 149 static int oboe_setbaud(struct oboe_softc *, int); 150 151 CFATTACH_DECL_NEW(oboe, sizeof(struct oboe_softc), 152 oboe_match, oboe_attach, oboe_detach, NULL); 153 154 static struct irframe_methods oboe_methods = { 155 oboe_open, oboe_close, oboe_read, oboe_write, oboe_poll, 156 oboe_kqfilter, oboe_set_params, oboe_get_speeds, oboe_get_turnarounds 157 }; 158 159 static int 160 oboe_match(device_t parent, cfdata_t match, void *aux) 161 { 162 struct pci_attach_args *pa = aux; 163 164 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 165 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 166 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 167 return (1); 168 return 0; 169 } 170 171 static void 172 oboe_attach(device_t parent, device_t self, void *aux) 173 { 174 struct oboe_softc *sc = device_private(self); 175 struct pci_attach_args *pa = aux; 176 pci_intr_handle_t ih; 177 struct ir_attach_args ia; 178 const char *intrstring; 179 char intrbuf[PCI_INTRSTR_LEN]; 180 181 sc->sc_revision = PCI_REVISION(pa->pa_class); 182 printf(": Toshiba Fast Infrared Type O, revision %d\n", 183 sc->sc_revision); 184 185 /* Map I/O registers. */ 186 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 187 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 188 aprint_error_dev(self, "can't map I/O space\n"); 189 return; 190 } 191 192 sc->sc_dmatag = pa->pa_dmat; 193 194 ia.ia_type = IR_TYPE_IRFRAME; 195 ia.ia_methods = &oboe_methods; 196 ia.ia_handle = sc; 197 198 sc->sc_state = 0; 199 sc->sc_speed = IRDA_SPEED_9600; 200 201 /* Enable the device */ 202 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 203 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 204 PCI_COMMAND_MASTER_ENABLE); 205 206 /* Reset the device; bail out upon failure. */ 207 if (oboe_reset(sc) != 0) { 208 aprint_error_dev(self, "can't reset\n"); 209 return; 210 } 211 /* Map and establish the interrupt. */ 212 if (pci_intr_map(pa, &ih)) { 213 aprint_error_dev(self, "couldn't map interrupt\n"); 214 return; 215 } 216 intrstring = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); 217 sc->sc_ih = pci_intr_establish_xname(pa->pa_pc, ih, IPL_IR, oboe_intr, 218 sc, device_xname(self)); 219 if (sc->sc_ih == NULL) { 220 aprint_error_dev(self, "couldn't establish interrupt"); 221 if (intrstring != NULL) 222 aprint_error(" at %s", intrstring); 223 aprint_error("\n"); 224 return; 225 } 226 aprint_normal_dev(self, "interrupting at %s\n", intrstring); 227 228 selinit(&sc->sc_rsel); 229 230 sc->sc_txs = 0; 231 sc->sc_rxs = 0; 232 233 sc->sc_speeds = 234 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 235 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 236 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 237 238 oboe_alloc_taskfile(sc); 239 240 sc->sc_child = config_found(self, &ia, ir_print, CFARGS_NONE); 241 } 242 243 static int 244 oboe_detach(device_t self, int flags) 245 { 246 struct oboe_softc *sc = device_private(self); 247 248 #ifdef OBOE_DEBUG 249 /* XXX needs reference counting for proper detach. */ 250 DPRINTF(("%s: sc=%p\n", __func__, sc)); 251 #endif 252 seldestroy(&sc->sc_rsel); 253 return (0); 254 } 255 256 static int 257 oboe_open(void *h, int flag, int mode, struct lwp *l) 258 { 259 struct oboe_softc *sc = h; 260 261 DPRINTF(("%s: sc=%p\n", __func__, sc)); 262 263 sc->sc_state = 0; 264 sc->sc_saved = 0; 265 oboe_init_taskfile(sc); 266 oboe_startchip(sc); 267 268 return (0); 269 } 270 271 static int 272 oboe_close(void *h, int flag, int mode, 273 struct lwp *l) 274 { 275 struct oboe_softc *sc = h; 276 int error = 0; 277 int s = splir(); 278 279 DPRINTF(("%s: sc=%p\n", __func__, sc)); 280 /* Wait for output to drain */ 281 282 if (sc->sc_txpending > 0) { 283 sc->sc_state |= OBOE_CLOSING; 284 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 285 } 286 splx(s); 287 288 oboe_stopchip(sc); 289 return (error); 290 } 291 292 static int 293 oboe_read(void *h, struct uio *uio, int flag) 294 { 295 struct oboe_softc *sc = h; 296 int error = 0; 297 int s; 298 int slot; 299 300 DPRINTF(("%s: resid=%zu, iovcnt=%d, offset=%jd\n", 301 __func__, uio->uio_resid, uio->uio_iovcnt, 302 (intmax_t)uio->uio_offset)); 303 304 s = splir(); 305 while (sc->sc_saved == 0) { 306 if (flag & IO_NDELAY) { 307 splx(s); 308 return (EWOULDBLOCK); 309 } 310 sc->sc_state |= OBOE_RSLP; 311 DPRINTF(("oboe_read: sleep\n")); 312 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 313 DPRINTF(("oboe_read: woke, error=%d\n", error)); 314 if (error) { 315 sc->sc_state &= ~OBOE_RSLP; 316 break; 317 } 318 } 319 320 /* Do just one frame transfer per read */ 321 322 if (!error) { 323 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 324 if (uio->uio_resid < sc->sc_lens[slot]) { 325 DPRINTF(("oboe_read: uio buffer smaller than frame size" 326 "(%zu < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 327 error = EINVAL; 328 } else { 329 DPRINTF(("oboe_read: moving %d bytes from %p\n", 330 sc->sc_lens[slot], 331 sc->sc_recv_stores[slot])); 332 error = uiomove(sc->sc_recv_stores[slot], 333 sc->sc_lens[slot], uio); 334 } 335 } 336 sc->sc_saved--; 337 splx(s); 338 339 return (error); 340 } 341 342 static int 343 oboe_write(void *h, struct uio *uio, int flag) 344 { 345 struct oboe_softc *sc = h; 346 int error = 0; 347 int n; 348 int s = splir(); 349 350 DPRINTF(("%s: sc=%p\n", __func__, sc)); 351 while (sc->sc_txpending == TX_SLOTS) { 352 if (flag & IO_NDELAY) { 353 splx(s); 354 return (EWOULDBLOCK); 355 } 356 sc->sc_state |= OBOE_WSLP; 357 DPRINTF(("oboe_write: sleep\n")); 358 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 359 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 360 if (error) { 361 sc->sc_state &= ~OBOE_WSLP; 362 break; 363 } 364 } 365 if (error) 366 goto err; 367 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 368 DPRINTF(("oboe_write: slot overrun\n")); 369 } 370 371 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 372 sc->sc_ebofs); 373 if (n < 0) { 374 error = -n; 375 goto err; 376 } 377 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 378 379 OUTB(sc, 0, OBOE_RST); 380 OUTB(sc, 0x1e, OBOE_REG_11); 381 382 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 383 384 /* XXX Need delay here??? */ 385 delay(1000); 386 387 sc->sc_txpending++; 388 OUTB(sc, 0x80, OBOE_RST); 389 OUTB(sc, 1, OBOE_REG_9); 390 sc->sc_txs++; 391 sc->sc_txs %= TX_SLOTS; 392 393 err: 394 splx(s); 395 return (error); 396 } 397 398 static int 399 oboe_set_params(void *h, struct irda_params *p) 400 { 401 struct oboe_softc *sc = h; 402 int error; 403 404 if (p->speed > 0) { 405 error = oboe_setbaud(sc, p->speed); 406 if (error) 407 return (error); 408 } 409 sc->sc_ebofs = p->ebofs; 410 411 /* XXX ignore ebofs and maxsize for now */ 412 return (0); 413 } 414 415 static int 416 oboe_get_speeds(void *h, int *speeds) 417 { 418 struct oboe_softc *sc = h; 419 *speeds = sc->sc_speeds; 420 return (0); 421 } 422 423 static int 424 oboe_get_turnarounds(void *h, int *turnarounds) 425 { 426 #ifdef OBOE_DEBUG 427 struct oboe_softc *sc = h; 428 DPRINTF(("%s: sc=%p\n", __func__, sc)); 429 #endif 430 431 /* XXX Linux driver sets all bits */ 432 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 433 434 return (0); 435 } 436 437 static int 438 oboe_poll(void *h, int events, struct lwp *l) 439 { 440 struct oboe_softc *sc = h; 441 int revents = 0; 442 int s; 443 444 DPRINTF(("%s: sc=%p\n", __func__, sc)); 445 446 s = splir(); 447 if (events & (POLLOUT | POLLWRNORM)) 448 revents |= events & (POLLOUT | POLLWRNORM); 449 if (events & (POLLIN | POLLRDNORM)) { 450 if (sc->sc_saved > 0) { 451 DPRINTF(("%s: have data\n", __func__)); 452 revents |= events & (POLLIN | POLLRDNORM); 453 } else { 454 DPRINTF(("%s: recording select\n", __func__)); 455 selrecord(l, &sc->sc_rsel); 456 } 457 } 458 splx(s); 459 460 return (revents); 461 } 462 463 static void 464 filt_oboerdetach(struct knote *kn) 465 { 466 struct oboe_softc *sc = kn->kn_hook; 467 int s; 468 469 s = splir(); 470 selremove_knote(&sc->sc_rsel, kn); 471 splx(s); 472 } 473 474 static int 475 filt_oboeread(struct knote *kn, long hint) 476 { 477 struct oboe_softc *sc = kn->kn_hook; 478 479 kn->kn_data = sc->sc_saved; 480 return (kn->kn_data > 0); 481 } 482 483 static const struct filterops oboeread_filtops = { 484 .f_flags = FILTEROP_ISFD, 485 .f_attach = NULL, 486 .f_detach = filt_oboerdetach, 487 .f_event = filt_oboeread, 488 }; 489 490 static int 491 oboe_kqfilter(void *h, struct knote *kn) 492 { 493 struct oboe_softc *sc = h; 494 int s; 495 496 switch (kn->kn_filter) { 497 case EVFILT_READ: 498 kn->kn_fop = &oboeread_filtops; 499 kn->kn_hook = sc; 500 s = splir(); 501 selrecord_knote(&sc->sc_rsel, kn); 502 splx(s); 503 break; 504 505 case EVFILT_WRITE: 506 kn->kn_fop = &seltrue_filtops; 507 break; 508 default: 509 return (EINVAL); 510 } 511 512 return (0); 513 } 514 515 static int 516 oboe_reset(struct oboe_softc *sc) 517 { 518 #if 0 519 OUTB(sc, 0x00, OBOE_RST); 520 OUTB(sc, 0x80, OBOE_RST); 521 #endif 522 return 0; 523 } 524 525 static int 526 oboe_intr(void *p) 527 { 528 struct oboe_softc *sc = p; 529 uint8_t irqstat = INB(sc, OBOE_ISR); 530 531 if (!(irqstat & 0xf8)) 532 return (0); /* Not for me? */ 533 534 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 535 536 OUTB(sc, irqstat, OBOE_ISR); 537 538 if (irqstat & OBOE_ISR_RXDONE) { 539 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 540 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 541 if (sc->sc_saved == RX_SLOTS) { 542 DPRINTF(("oboe_intr: all buffers filled\n")); 543 return 0; 544 } 545 546 if (len > 2) 547 len -= 2; /* JSP: skip check sum? */ 548 549 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 550 sc->sc_recv_stores[sc->sc_rxs])); 551 memcpy(sc->sc_recv_stores[sc->sc_rxs], 552 sc->sc_recv_bufs[sc->sc_rxs], 553 len); 554 sc->sc_lens[sc->sc_rxs] = len; 555 sc->sc_saved++; 556 #if 0 557 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 558 len, &sc->sc_q); 559 #endif 560 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 561 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 562 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 563 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 564 } 565 DPRINTF(("oboe_intr no more frames available\n")); 566 if (sc->sc_state & OBOE_RSLP) { 567 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 568 sc->sc_state &= ~OBOE_RSLP; 569 DPRINTF(("oboe_intr: waking up reader\n")); 570 wakeup(&sc->sc_rxs); 571 } 572 selnotify(&sc->sc_rsel, 0, 0); 573 DPRINTF(("oboe_intr returning\n")); 574 } 575 if (irqstat & OBOE_ISR_TXDONE) { 576 DPRINTF(("oboe_intr: write done\n")); 577 sc->sc_txpending--; 578 sc->sc_txpackets++; 579 580 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 581 wakeup(&sc->sc_state); 582 return 1; 583 } 584 585 if (sc->sc_state & OBOE_WSLP) { 586 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 587 sc->sc_state &= ~OBOE_WSLP; 588 DPRINTF(("oboe_intr: waking up writer\n")); 589 wakeup(&sc->sc_txs); 590 } 591 } 592 return (1); 593 } 594 595 /* XXX vtophys must go! */ 596 static void 597 oboe_init_taskfile(struct oboe_softc *sc) 598 { 599 int i; 600 int s = splir(); 601 602 for (i = 0; i < TX_SLOTS; ++i) { 603 sc->sc_taskfile->xmit[i].len = 0; 604 sc->sc_taskfile->xmit[i].control = 0x00; 605 sc->sc_taskfile->xmit[i].buffer = 606 vtophys((uintptr_t)sc->sc_xmit_bufs[i]); 607 } 608 609 for (i = 0; i < RX_SLOTS; ++i) { 610 sc->sc_taskfile->recv[i].len = 0; 611 sc->sc_taskfile->recv[i].control = 0x83; 612 sc->sc_taskfile->recv[i].buffer = 613 vtophys((uintptr_t)sc->sc_recv_bufs[i]); 614 } 615 616 sc->sc_txpending = 0; 617 618 splx(s); 619 } 620 621 static int 622 oboe_alloc_taskfile(struct oboe_softc *sc) 623 { 624 int i; 625 /* XXX */ 626 uintptr_t addr = 627 (uintptr_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 628 629 addr &= ~(sizeof (struct OboeTaskFile) - 1); 630 addr += sizeof (struct OboeTaskFile); 631 sc->sc_taskfile = (struct OboeTaskFile *) addr; 632 633 for (i = 0; i < TX_SLOTS; ++i) { 634 sc->sc_xmit_bufs[i] = 635 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 636 sc->sc_xmit_stores[i] = 637 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 638 } 639 for (i = 0; i < RX_SLOTS; ++i) { 640 sc->sc_recv_bufs[i] = 641 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 642 sc->sc_recv_stores[i] = 643 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 644 } 645 646 return 0; 647 } 648 649 static void 650 oboe_startchip (struct oboe_softc *sc) 651 { 652 uint32_t physaddr; 653 654 OUTB(sc, 0, OBOE_LOCK); 655 OUTB(sc, 0, OBOE_RST); 656 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 657 OUTB(sc, 0xf0, OBOE_REG_D); 658 OUTB(sc, 0xff, OBOE_ISR); 659 OUTB(sc, 0x0f, OBOE_REG_1A); 660 OUTB(sc, 0xff, OBOE_REG_1B); 661 662 physaddr = vtophys((uintptr_t)sc->sc_taskfile); 663 664 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 665 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 666 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 667 668 OUTB(sc, 0x0e, OBOE_REG_11); 669 OUTB(sc, 0x80, OBOE_RST); 670 671 (void)oboe_setbaud(sc, 9600); 672 673 sc->sc_rxs = INB(sc, OBOE_RCVT); 674 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 675 sc->sc_rxs = 0; 676 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 677 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 678 sc->sc_txs = 0; 679 } 680 681 static void 682 oboe_stopchip (struct oboe_softc *sc) 683 { 684 OUTB(sc, 0x0e, OBOE_REG_11); 685 OUTB(sc, 0x00, OBOE_RST); 686 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 687 OUTB(sc, 0xff, OBOE_TFP1); 688 OUTB(sc, 0xff, OBOE_TFP0); 689 OUTB(sc, 0x0f, OBOE_REG_1B); 690 OUTB(sc, 0xff, OBOE_REG_1A); 691 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 692 OUTB(sc, 0x80, OBOE_RST); 693 OUTB(sc, 0x0e, OBOE_LOCK); 694 } 695 696 #define SPEEDCASE(speed, type, divisor) \ 697 case speed: \ 698 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 699 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 700 OUTB(sc, divisor, OBOE_UDIV); \ 701 break 702 703 static int 704 oboe_setbaud(struct oboe_softc *sc, int baud) 705 { 706 int s; 707 708 DPRINTF(("oboe: setting baud to %d\n", baud)); 709 710 s = splir(); 711 712 switch (baud) { 713 SPEEDCASE( 2400, SIR, 0xbf); 714 SPEEDCASE( 9600, SIR, 0x2f); 715 SPEEDCASE( 19200, SIR, 0x17); 716 SPEEDCASE( 38400, SIR, 0x0b); 717 SPEEDCASE( 57600, SIR, 0x07); 718 SPEEDCASE( 115200, SIR, 0x03); 719 SPEEDCASE(1152000, MIR, 0x01); 720 SPEEDCASE(4000000, FIR, 0x00); 721 default: 722 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 723 splx(s); 724 return (EINVAL); 725 } 726 727 OUTB(sc, 0x00, OBOE_RST); 728 OUTB(sc, 0x80, OBOE_RST); 729 OUTB(sc, 0x01, OBOE_REG_9); 730 731 sc->sc_speed = baud; 732 733 splx(s); 734 735 return (0); 736 } 737
Indexes created Tue Sep 30 11:09:46 GMT 2025