oboe.c revision 1.8
1 /* $NetBSD: oboe.c,v 1.8 2002/10/02 16:51:47 thorpej 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 Jan Sparud. 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 /* 40 * Toshiba OBOE IrDA SIR/FIR driver. 41 * 42 * Based on information from the Linux driver, thus the magic hex numbers. 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/device.h> 49 #include <sys/malloc.h> 50 #include <sys/tty.h> 51 #include <sys/vnode.h> 52 #include <sys/poll.h> 53 54 #include <dev/ir/ir.h> 55 #include <dev/ir/irdaio.h> 56 #include <dev/ir/irframevar.h> 57 #include <dev/ir/sir.h> 58 59 #include <dev/pci/pcidevs.h> 60 #include <dev/pci/pcivar.h> 61 62 #include <machine/bus.h> 63 #include <machine/intr.h> 64 #include <uvm/uvm_extern.h> 65 66 #include <dev/pci/oboereg.h> 67 68 int oboe_match(struct device *parent, struct cfdata *match, void *aux); 69 void oboe_attach(struct device *parent, struct device *self, void *aux); 70 int oboe_activate(struct device *self, enum devact act); 71 int oboe_detach(struct device *self, int flags); 72 73 int oboe_open(void *h, int flag, int mode, struct proc *p); 74 int oboe_close(void *h, int flag, int mode, struct proc *p); 75 int oboe_read(void *h, struct uio *uio, int flag); 76 int oboe_write(void *h, struct uio *uio, int flag); 77 int oboe_set_params(void *h, struct irda_params *params); 78 int oboe_get_speeds(void *h, int *speeds); 79 int oboe_get_turnarounds(void *h, int *times); 80 int oboe_poll(void *h, int events, struct proc *p); 81 82 #ifdef OBOE_DEBUG 83 #define DPRINTF(x) if (oboedebug) printf x 84 int oboedebug = 1; 85 #else 86 #define DPRINTF(x) 87 #endif 88 89 struct oboe_dma; 90 91 struct oboe_softc { 92 struct device sc_dev; 93 struct device *sc_child; 94 struct pci_attach_args sc_pa; 95 pci_intr_handle_t * sc_ih; 96 unsigned int sc_revision; /* PCI Revision ID */ 97 /* I/O Base device */ 98 bus_space_tag_t sc_iot; 99 bus_space_handle_t sc_ioh; 100 bus_dma_tag_t sc_dmatag; 101 struct selinfo sc_rsel; 102 103 int sc_state; 104 #define OBOE_RSLP 0x01 /* waiting for data (read) */ 105 #define OBOE_WSLP 0x02 /* waiting for data (write) */ 106 #define OBOE_CLOSING 0x04 /* waiting for output to drain */ 107 108 int sc_speeds; 109 int sc_flags; 110 int sc_speed; 111 int sc_ebofs; 112 113 struct oboe_dma *sc_dmas; 114 struct OboeTaskFile *sc_taskfile; /* The taskfile */ 115 u_char * sc_xmit_bufs[TX_SLOTS]; 116 u_char * sc_recv_bufs[RX_SLOTS]; 117 void * sc_xmit_stores[TX_SLOTS]; 118 void * sc_recv_stores[RX_SLOTS]; 119 int sc_txs; /* Current transmit slot number */ 120 int sc_rxs; /* Current receive slot number */ 121 int sc_saved; /* number of saved frames */ 122 int sc_lens[RX_SLOTS]; 123 124 int sc_txpending; 125 126 /* Statistics */ 127 int sc_txpackets; 128 int sc_rxpackets; 129 int sc_txerrors; 130 int sc_rxerrors; 131 }; 132 133 static int oboe_intr(void *handle); 134 static int oboe_reset(struct oboe_softc *); 135 136 struct oboe_dma { 137 bus_dmamap_t map; 138 caddr_t addr; 139 bus_dma_segment_t segs[1]; 140 int nsegs; 141 size_t size; 142 struct oboe_dma *next; 143 }; 144 145 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) 146 #define KERNADDR(p) ((void *)((p)->addr)) 147 148 static int oboe_alloc_taskfile(struct oboe_softc *); 149 static void oboe_init_taskfile(struct oboe_softc *); 150 static void oboe_startchip(struct oboe_softc *); 151 static void oboe_stopchip(struct oboe_softc *); 152 static int oboe_setbaud(struct oboe_softc *, int); 153 154 CFATTACH_DECL(oboe, sizeof(struct oboe_softc), 155 oboe_match, oboe_attach, oboe_detach, oboe_activate); 156 157 struct irframe_methods oboe_methods = { 158 oboe_open, oboe_close, oboe_read, oboe_write, oboe_poll, 159 oboe_set_params, oboe_get_speeds, oboe_get_turnarounds 160 }; 161 162 int 163 oboe_match(struct device *parent, struct cfdata *match, void *aux) 164 { 165 struct pci_attach_args *pa = aux; 166 167 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 168 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 169 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 170 return (1); 171 return 0; 172 } 173 174 void 175 oboe_attach(struct device *parent, struct device *self, void *aux) 176 { 177 struct oboe_softc *sc = (struct oboe_softc *)self; 178 struct pci_attach_args *pa = aux; 179 pci_intr_handle_t ih; 180 struct ir_attach_args ia; 181 const char *intrstring; 182 183 sc->sc_revision = PCI_REVISION(pa->pa_class); 184 printf(": Toshiba Fast Infrared Type O, revision %d\n", 185 sc->sc_revision); 186 187 /* Map I/O registers. */ 188 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 189 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 190 printf("%s: can't map I/O space\n", sc->sc_dev.dv_xname); 191 return; 192 } 193 194 sc->sc_dmatag = pa->pa_dmat; 195 196 ia.ia_type = IR_TYPE_IRFRAME; 197 ia.ia_methods = &oboe_methods; 198 ia.ia_handle = sc; 199 200 sc->sc_state = 0; 201 sc->sc_speed = IRDA_SPEED_9600; 202 203 /* Enable the device */ 204 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 205 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 206 PCI_COMMAND_MASTER_ENABLE); 207 208 /* Reset the device; bail out upon failure. */ 209 if (oboe_reset(sc) != 0) { 210 printf("%s: can't reset\n", sc->sc_dev.dv_xname); 211 return; 212 } 213 /* Map and establish the interrupt. */ 214 if (pci_intr_map(pa, &ih)) { 215 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 216 return; 217 } 218 intrstring = pci_intr_string(pa->pa_pc, ih); 219 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_IR, oboe_intr, sc); 220 if (sc->sc_ih == NULL) { 221 printf("%s: couldn't establish interrupt", 222 sc->sc_dev.dv_xname); 223 if (intrstring != NULL) 224 printf(" at %s", intrstring); 225 printf("\n"); 226 return; 227 } 228 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstring); 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((void *)sc, &ia, ir_print); 241 } 242 243 int 244 oboe_activate(struct device *self, enum devact act) 245 { 246 struct oboe_softc *sc = (struct oboe_softc *)self; 247 int error; 248 249 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 250 251 switch (act) { 252 case DVACT_ACTIVATE: 253 return (EOPNOTSUPP); 254 break; 255 256 case DVACT_DEACTIVATE: 257 if (sc->sc_child != NULL) 258 error = config_deactivate(sc->sc_child); 259 else 260 error = 0; 261 break; 262 } 263 return (error); 264 } 265 266 int 267 oboe_detach(struct device *self, int flags) 268 { 269 #if 0 270 struct oboe_softc *sc = (struct oboe_softc *)self; 271 #endif 272 /* XXX needs reference counting for proper detach. */ 273 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 274 return (0); 275 } 276 277 int 278 oboe_open(void *h, int flag, int mode, struct proc *p) 279 { 280 struct oboe_softc *sc = h; 281 282 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 283 284 sc->sc_state = 0; 285 sc->sc_saved = 0; 286 oboe_init_taskfile(sc); 287 oboe_startchip(sc); 288 289 return (0); 290 } 291 292 int 293 oboe_close(void *h, int flag, int mode, struct proc *p) 294 { 295 struct oboe_softc *sc = h; 296 int error = 0; 297 int s = splir(); 298 299 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 300 /* Wait for output to drain */ 301 302 if (sc->sc_txpending > 0) { 303 sc->sc_state |= OBOE_CLOSING; 304 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 305 } 306 splx(s); 307 308 oboe_stopchip(sc); 309 return (error); 310 } 311 312 int 313 oboe_read(void *h, struct uio *uio, int flag) 314 { 315 struct oboe_softc *sc = h; 316 int error = 0; 317 int s; 318 int slot; 319 320 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 321 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 322 (long)uio->uio_offset)); 323 324 s = splir(); 325 while (sc->sc_saved == 0) { 326 if (flag & IO_NDELAY) { 327 splx(s); 328 return (EWOULDBLOCK); 329 } 330 sc->sc_state |= OBOE_RSLP; 331 DPRINTF(("oboe_read: sleep\n")); 332 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 333 DPRINTF(("oboe_read: woke, error=%d\n", error)); 334 if (error) { 335 sc->sc_state &= ~OBOE_RSLP; 336 break; 337 } 338 } 339 340 /* Do just one frame transfer per read */ 341 342 if (!error) { 343 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 344 if (uio->uio_resid < sc->sc_lens[slot]) { 345 DPRINTF(("oboe_read: uio buffer smaller than frame size" 346 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 347 error = EINVAL; 348 } else { 349 DPRINTF(("oboe_read: moving %d bytes from %p\n", 350 sc->sc_lens[slot], 351 sc->sc_recv_stores[slot])); 352 error = uiomove(sc->sc_recv_stores[slot], 353 sc->sc_lens[slot], uio); 354 } 355 } 356 sc->sc_saved--; 357 splx(s); 358 359 return (error); 360 } 361 362 int 363 oboe_write(void *h, struct uio *uio, int flag) 364 { 365 struct oboe_softc *sc = h; 366 int error = 0; 367 int n; 368 int s = splir(); 369 370 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 371 while (sc->sc_txpending == TX_SLOTS) { 372 if (flag & IO_NDELAY) { 373 splx(s); 374 return (EWOULDBLOCK); 375 } 376 sc->sc_state |= OBOE_WSLP; 377 DPRINTF(("oboe_write: sleep\n")); 378 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 379 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 380 if (error) { 381 sc->sc_state &= ~OBOE_WSLP; 382 break; 383 } 384 } 385 if (error) 386 goto err; 387 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 388 DPRINTF(("oboe_write: slot overrun\n")); 389 } 390 391 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 392 sc->sc_ebofs); 393 if (n < 0) { 394 error = -n; 395 goto err; 396 } 397 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 398 399 OUTB(sc, 0, OBOE_RST); 400 OUTB(sc, 0x1e, OBOE_REG_11); 401 402 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 403 404 /* XXX Need delay here??? */ 405 delay(1000); 406 407 sc->sc_txpending++; 408 OUTB(sc, 0x80, OBOE_RST); 409 OUTB(sc, 1, OBOE_REG_9); 410 sc->sc_txs++; 411 sc->sc_txs %= TX_SLOTS; 412 413 err: 414 splx(s); 415 return (error); 416 } 417 418 int 419 oboe_set_params(void *h, struct irda_params *p) 420 { 421 struct oboe_softc *sc = h; 422 int error; 423 424 if (p->speed > 0) { 425 error = oboe_setbaud(sc, p->speed); 426 if (error) 427 return (error); 428 } 429 sc->sc_ebofs = p->ebofs; 430 431 /* XXX ignore ebofs and maxsize for now */ 432 return (0); 433 } 434 435 int 436 oboe_get_speeds(void *h, int *speeds) 437 { 438 struct oboe_softc *sc = h; 439 *speeds = sc->sc_speeds; 440 return (0); 441 } 442 443 int 444 oboe_get_turnarounds(void *h, int *turnarounds) 445 { 446 #if 0 447 struct oboe_softc *sc = h; 448 #endif 449 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 450 /* XXX Linux driver sets all bits */ 451 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 452 return (0); 453 } 454 455 int 456 oboe_poll(void *h, int events, struct proc *p) 457 { 458 struct oboe_softc *sc = h; 459 int revents = 0; 460 int s; 461 462 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 463 464 s = splir(); 465 if (events & (POLLOUT | POLLWRNORM)) 466 revents |= events & (POLLOUT | POLLWRNORM); 467 if (events & (POLLIN | POLLRDNORM)) { 468 if (sc->sc_saved > 0) { 469 DPRINTF(("%s: have data\n", __FUNCTION__)); 470 revents |= events & (POLLIN | POLLRDNORM); 471 } else { 472 DPRINTF(("%s: recording select\n", __FUNCTION__)); 473 selrecord(p, &sc->sc_rsel); 474 } 475 } 476 splx(s); 477 478 return (revents); 479 } 480 481 482 static int 483 oboe_reset(struct oboe_softc *sc) 484 { 485 #if 0 486 OUTB(sc, 0x00, OBOE_RST); 487 OUTB(sc, 0x80, OBOE_RST); 488 #endif 489 return 0; 490 } 491 492 static int 493 oboe_intr(void *p) 494 { 495 struct oboe_softc *sc = p; 496 uint8_t irqstat = INB(sc, OBOE_ISR); 497 498 if (!(irqstat & 0xf8)) 499 return (0); /* Not for me? */ 500 501 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 502 503 OUTB(sc, irqstat, OBOE_ISR); 504 505 if (irqstat & OBOE_ISR_RXDONE) { 506 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 507 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 508 if (sc->sc_saved == RX_SLOTS) { 509 DPRINTF(("oboe_intr: all buffers filled\n")); 510 return 0; 511 } 512 513 if (len > 2) 514 len -= 2; /* JSP: skip check sum? */ 515 516 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 517 sc->sc_recv_stores[sc->sc_rxs])); 518 memcpy(sc->sc_recv_stores[sc->sc_rxs], 519 sc->sc_recv_bufs[sc->sc_rxs], 520 len); 521 sc->sc_lens[sc->sc_rxs] = len; 522 sc->sc_saved++; 523 #if 0 524 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 525 len, &sc->sc_q); 526 #endif 527 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 528 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 529 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 530 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 531 } 532 DPRINTF(("oboe_intr no more frames available\n")); 533 if (sc->sc_state & OBOE_RSLP) { 534 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 535 sc->sc_state &= ~OBOE_RSLP; 536 DPRINTF(("oboe_intr: waking up reader\n")); 537 wakeup(&sc->sc_rxs); 538 } 539 selwakeup(&sc->sc_rsel); 540 DPRINTF(("oboe_intr returning\n")); 541 } 542 if (irqstat & OBOE_ISR_TXDONE) { 543 DPRINTF(("oboe_intr: write done\n")); 544 sc->sc_txpending--; 545 sc->sc_txpackets++; 546 547 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 548 wakeup(&sc->sc_state); 549 return 1; 550 } 551 552 if (sc->sc_state & OBOE_WSLP) { 553 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 554 sc->sc_state &= ~OBOE_WSLP; 555 DPRINTF(("oboe_intr: waking up writer\n")); 556 wakeup(&sc->sc_txs); 557 } 558 } 559 return (1); 560 } 561 562 /* XXX vtophys must go! */ 563 static void 564 oboe_init_taskfile(struct oboe_softc *sc) 565 { 566 int i; 567 int s = splir(); 568 569 for (i = 0; i < TX_SLOTS; ++i) { 570 sc->sc_taskfile->xmit[i].len = 0; 571 sc->sc_taskfile->xmit[i].control = 0x00; 572 sc->sc_taskfile->xmit[i].buffer = 573 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 574 } 575 576 for (i = 0; i < RX_SLOTS; ++i) { 577 sc->sc_taskfile->recv[i].len = 0; 578 sc->sc_taskfile->recv[i].control = 0x83; 579 sc->sc_taskfile->recv[i].buffer = 580 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 581 } 582 583 sc->sc_txpending = 0; 584 585 splx(s); 586 } 587 588 static int 589 oboe_alloc_taskfile(struct oboe_softc *sc) 590 { 591 int i; 592 /* XXX */ 593 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 594 if (addr == NULL) { 595 goto bad; 596 } 597 addr &= ~(sizeof (struct OboeTaskFile) - 1); 598 addr += sizeof (struct OboeTaskFile); 599 sc->sc_taskfile = (struct OboeTaskFile *) addr; 600 601 for (i = 0; i < TX_SLOTS; ++i) { 602 sc->sc_xmit_bufs[i] = 603 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 604 sc->sc_xmit_stores[i] = 605 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 606 if (sc->sc_xmit_bufs[i] == NULL || 607 sc->sc_xmit_stores[i] == NULL) { 608 goto bad; 609 } 610 } 611 for (i = 0; i < RX_SLOTS; ++i) { 612 sc->sc_recv_bufs[i] = 613 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 614 sc->sc_recv_stores[i] = 615 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 616 if (sc->sc_recv_bufs[i] == NULL || 617 sc->sc_recv_stores[i] == NULL) { 618 goto bad; 619 } 620 } 621 622 return 0; 623 bad: 624 printf("oboe: malloc for buffers failed()\n"); 625 return 1; 626 } 627 628 static void 629 oboe_startchip (struct oboe_softc *sc) 630 { 631 uint32_t physaddr; 632 633 OUTB(sc, 0, OBOE_LOCK); 634 OUTB(sc, 0, OBOE_RST); 635 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 636 OUTB(sc, 0xf0, OBOE_REG_D); 637 OUTB(sc, 0xff, OBOE_ISR); 638 OUTB(sc, 0x0f, OBOE_REG_1A); 639 OUTB(sc, 0xff, OBOE_REG_1B); 640 641 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 642 643 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 644 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 645 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 646 647 OUTB(sc, 0x0e, OBOE_REG_11); 648 OUTB(sc, 0x80, OBOE_RST); 649 650 (void)oboe_setbaud(sc, 9600); 651 652 sc->sc_rxs = INB(sc, OBOE_RCVT); 653 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 654 sc->sc_rxs = 0; 655 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 656 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 657 sc->sc_txs = 0; 658 } 659 660 static void 661 oboe_stopchip (struct oboe_softc *sc) 662 { 663 OUTB(sc, 0x0e, OBOE_REG_11); 664 OUTB(sc, 0x00, OBOE_RST); 665 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 666 OUTB(sc, 0xff, OBOE_TFP1); 667 OUTB(sc, 0xff, OBOE_TFP0); 668 OUTB(sc, 0x0f, OBOE_REG_1B); 669 OUTB(sc, 0xff, OBOE_REG_1A); 670 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 671 OUTB(sc, 0x80, OBOE_RST); 672 OUTB(sc, 0x0e, OBOE_LOCK); 673 } 674 675 #define SPEEDCASE(speed, type, divisor) \ 676 case speed: \ 677 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 678 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 679 OUTB(sc, divisor, OBOE_UDIV); \ 680 break 681 682 static int 683 oboe_setbaud(struct oboe_softc *sc, int baud) 684 { 685 int s; 686 687 DPRINTF(("oboe: setting baud to %d\n", baud)); 688 689 s = splir(); 690 691 switch (baud) { 692 SPEEDCASE( 2400, SIR, 0xbf); 693 SPEEDCASE( 9600, SIR, 0x2f); 694 SPEEDCASE( 19200, SIR, 0x17); 695 SPEEDCASE( 38400, SIR, 0x0b); 696 SPEEDCASE( 57600, SIR, 0x07); 697 SPEEDCASE( 115200, SIR, 0x03); 698 SPEEDCASE(1152000, MIR, 0x01); 699 SPEEDCASE(4000000, FIR, 0x00); 700 default: 701 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 702 splx(s); 703 return (EINVAL); 704 } 705 706 OUTB(sc, 0x00, OBOE_RST); 707 OUTB(sc, 0x80, OBOE_RST); 708 OUTB(sc, 0x01, OBOE_REG_9); 709 710 sc->sc_speed = baud; 711 712 splx(s); 713 714 return (0); 715 } 716
Indexes created Tue Sep 30 20:09:53 GMT 2025