oboe.c revision 1.47
1 /* $NetBSD: oboe.c,v 1.47 2020/12/18 02:55:32 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 1.47 2020/12/18 02:55:32 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 struct selinfo sc_wsel; 100 101 int sc_state; 102 #define OBOE_RSLP 0x01 /* waiting for data (read) */ 103 #define OBOE_WSLP 0x02 /* waiting for data (write) */ 104 #define OBOE_CLOSING 0x04 /* waiting for output to drain */ 105 106 int sc_speeds; 107 int sc_flags; 108 int sc_speed; 109 int sc_ebofs; 110 111 struct oboe_dma *sc_dmas; 112 struct OboeTaskFile *sc_taskfile; /* The taskfile */ 113 u_char * sc_xmit_bufs[TX_SLOTS]; 114 u_char * sc_recv_bufs[RX_SLOTS]; 115 void * sc_xmit_stores[TX_SLOTS]; 116 void * sc_recv_stores[RX_SLOTS]; 117 int sc_txs; /* Current transmit slot number */ 118 int sc_rxs; /* Current receive slot number */ 119 int sc_saved; /* number of saved frames */ 120 int sc_lens[RX_SLOTS]; 121 122 int sc_txpending; 123 124 /* Statistics */ 125 int sc_txpackets; 126 int sc_rxpackets; 127 int sc_txerrors; 128 int sc_rxerrors; 129 }; 130 131 static int oboe_intr(void *handle); 132 static int oboe_reset(struct oboe_softc *); 133 134 struct oboe_dma { 135 bus_dmamap_t map; 136 void *addr; 137 bus_dma_segment_t segs[1]; 138 int nsegs; 139 size_t size; 140 struct oboe_dma *next; 141 }; 142 143 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) 144 #define KERNADDR(p) ((void *)((p)->addr)) 145 146 static int oboe_alloc_taskfile(struct oboe_softc *); 147 static void oboe_init_taskfile(struct oboe_softc *); 148 static void oboe_startchip(struct oboe_softc *); 149 static void oboe_stopchip(struct oboe_softc *); 150 static int oboe_setbaud(struct oboe_softc *, int); 151 152 CFATTACH_DECL_NEW(oboe, sizeof(struct oboe_softc), 153 oboe_match, oboe_attach, oboe_detach, NULL); 154 155 static struct irframe_methods oboe_methods = { 156 oboe_open, oboe_close, oboe_read, oboe_write, oboe_poll, 157 oboe_kqfilter, oboe_set_params, oboe_get_speeds, oboe_get_turnarounds 158 }; 159 160 static int 161 oboe_match(device_t parent, cfdata_t match, void *aux) 162 { 163 struct pci_attach_args *pa = aux; 164 165 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 166 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 167 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 168 return (1); 169 return 0; 170 } 171 172 static void 173 oboe_attach(device_t parent, device_t self, void *aux) 174 { 175 struct oboe_softc *sc = device_private(self); 176 struct pci_attach_args *pa = aux; 177 pci_intr_handle_t ih; 178 struct ir_attach_args ia; 179 const char *intrstring; 180 char intrbuf[PCI_INTRSTR_LEN]; 181 182 sc->sc_revision = PCI_REVISION(pa->pa_class); 183 printf(": Toshiba Fast Infrared Type O, revision %d\n", 184 sc->sc_revision); 185 186 /* Map I/O registers. */ 187 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 188 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 189 aprint_error_dev(self, "can't map I/O space\n"); 190 return; 191 } 192 193 sc->sc_dmatag = pa->pa_dmat; 194 195 ia.ia_type = IR_TYPE_IRFRAME; 196 ia.ia_methods = &oboe_methods; 197 ia.ia_handle = sc; 198 199 sc->sc_state = 0; 200 sc->sc_speed = IRDA_SPEED_9600; 201 202 /* Enable the device */ 203 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 204 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 205 PCI_COMMAND_MASTER_ENABLE); 206 207 /* Reset the device; bail out upon failure. */ 208 if (oboe_reset(sc) != 0) { 209 aprint_error_dev(self, "can't reset\n"); 210 return; 211 } 212 /* Map and establish the interrupt. */ 213 if (pci_intr_map(pa, &ih)) { 214 aprint_error_dev(self, "couldn't map interrupt\n"); 215 return; 216 } 217 intrstring = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); 218 sc->sc_ih = pci_intr_establish_xname(pa->pa_pc, ih, IPL_IR, oboe_intr, 219 sc, device_xname(self)); 220 if (sc->sc_ih == NULL) { 221 aprint_error_dev(self, "couldn't establish interrupt"); 222 if (intrstring != NULL) 223 aprint_error(" at %s", intrstring); 224 aprint_error("\n"); 225 return; 226 } 227 aprint_normal_dev(self, "interrupting at %s\n", intrstring); 228 229 selinit(&sc->sc_rsel); 230 selinit(&sc->sc_wsel); 231 232 sc->sc_txs = 0; 233 sc->sc_rxs = 0; 234 235 sc->sc_speeds = 236 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 237 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 238 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 239 240 oboe_alloc_taskfile(sc); 241 242 sc->sc_child = config_found(self, &ia, ir_print); 243 } 244 245 static int 246 oboe_detach(device_t self, int flags) 247 { 248 struct oboe_softc *sc = device_private(self); 249 250 #ifdef OBOE_DEBUG 251 /* XXX needs reference counting for proper detach. */ 252 DPRINTF(("%s: sc=%p\n", __func__, sc)); 253 #endif 254 seldestroy(&sc->sc_rsel); 255 seldestroy(&sc->sc_wsel); 256 return (0); 257 } 258 259 static int 260 oboe_open(void *h, int flag, int mode, struct lwp *l) 261 { 262 struct oboe_softc *sc = h; 263 264 DPRINTF(("%s: sc=%p\n", __func__, sc)); 265 266 sc->sc_state = 0; 267 sc->sc_saved = 0; 268 oboe_init_taskfile(sc); 269 oboe_startchip(sc); 270 271 return (0); 272 } 273 274 static int 275 oboe_close(void *h, int flag, int mode, 276 struct lwp *l) 277 { 278 struct oboe_softc *sc = h; 279 int error = 0; 280 int s = splir(); 281 282 DPRINTF(("%s: sc=%p\n", __func__, sc)); 283 /* Wait for output to drain */ 284 285 if (sc->sc_txpending > 0) { 286 sc->sc_state |= OBOE_CLOSING; 287 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 288 } 289 splx(s); 290 291 oboe_stopchip(sc); 292 return (error); 293 } 294 295 static int 296 oboe_read(void *h, struct uio *uio, int flag) 297 { 298 struct oboe_softc *sc = h; 299 int error = 0; 300 int s; 301 int slot; 302 303 DPRINTF(("%s: resid=%zu, iovcnt=%d, offset=%jd\n", 304 __func__, uio->uio_resid, uio->uio_iovcnt, 305 (intmax_t)uio->uio_offset)); 306 307 s = splir(); 308 while (sc->sc_saved == 0) { 309 if (flag & IO_NDELAY) { 310 splx(s); 311 return (EWOULDBLOCK); 312 } 313 sc->sc_state |= OBOE_RSLP; 314 DPRINTF(("oboe_read: sleep\n")); 315 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 316 DPRINTF(("oboe_read: woke, error=%d\n", error)); 317 if (error) { 318 sc->sc_state &= ~OBOE_RSLP; 319 break; 320 } 321 } 322 323 /* Do just one frame transfer per read */ 324 325 if (!error) { 326 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 327 if (uio->uio_resid < sc->sc_lens[slot]) { 328 DPRINTF(("oboe_read: uio buffer smaller than frame size" 329 "(%zu < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 330 error = EINVAL; 331 } else { 332 DPRINTF(("oboe_read: moving %d bytes from %p\n", 333 sc->sc_lens[slot], 334 sc->sc_recv_stores[slot])); 335 error = uiomove(sc->sc_recv_stores[slot], 336 sc->sc_lens[slot], uio); 337 } 338 } 339 sc->sc_saved--; 340 splx(s); 341 342 return (error); 343 } 344 345 static int 346 oboe_write(void *h, struct uio *uio, int flag) 347 { 348 struct oboe_softc *sc = h; 349 int error = 0; 350 int n; 351 int s = splir(); 352 353 DPRINTF(("%s: sc=%p\n", __func__, sc)); 354 while (sc->sc_txpending == TX_SLOTS) { 355 if (flag & IO_NDELAY) { 356 splx(s); 357 return (EWOULDBLOCK); 358 } 359 sc->sc_state |= OBOE_WSLP; 360 DPRINTF(("oboe_write: sleep\n")); 361 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 362 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 363 if (error) { 364 sc->sc_state &= ~OBOE_WSLP; 365 break; 366 } 367 } 368 if (error) 369 goto err; 370 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 371 DPRINTF(("oboe_write: slot overrun\n")); 372 } 373 374 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 375 sc->sc_ebofs); 376 if (n < 0) { 377 error = -n; 378 goto err; 379 } 380 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 381 382 OUTB(sc, 0, OBOE_RST); 383 OUTB(sc, 0x1e, OBOE_REG_11); 384 385 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 386 387 /* XXX Need delay here??? */ 388 delay(1000); 389 390 sc->sc_txpending++; 391 OUTB(sc, 0x80, OBOE_RST); 392 OUTB(sc, 1, OBOE_REG_9); 393 sc->sc_txs++; 394 sc->sc_txs %= TX_SLOTS; 395 396 err: 397 splx(s); 398 return (error); 399 } 400 401 static int 402 oboe_set_params(void *h, struct irda_params *p) 403 { 404 struct oboe_softc *sc = h; 405 int error; 406 407 if (p->speed > 0) { 408 error = oboe_setbaud(sc, p->speed); 409 if (error) 410 return (error); 411 } 412 sc->sc_ebofs = p->ebofs; 413 414 /* XXX ignore ebofs and maxsize for now */ 415 return (0); 416 } 417 418 static int 419 oboe_get_speeds(void *h, int *speeds) 420 { 421 struct oboe_softc *sc = h; 422 *speeds = sc->sc_speeds; 423 return (0); 424 } 425 426 static int 427 oboe_get_turnarounds(void *h, int *turnarounds) 428 { 429 #ifdef OBOE_DEBUG 430 struct oboe_softc *sc = h; 431 DPRINTF(("%s: sc=%p\n", __func__, sc)); 432 #endif 433 434 /* XXX Linux driver sets all bits */ 435 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 436 437 return (0); 438 } 439 440 static int 441 oboe_poll(void *h, int events, struct lwp *l) 442 { 443 struct oboe_softc *sc = h; 444 int revents = 0; 445 int s; 446 447 DPRINTF(("%s: sc=%p\n", __func__, sc)); 448 449 s = splir(); 450 if (events & (POLLOUT | POLLWRNORM)) 451 revents |= events & (POLLOUT | POLLWRNORM); 452 if (events & (POLLIN | POLLRDNORM)) { 453 if (sc->sc_saved > 0) { 454 DPRINTF(("%s: have data\n", __func__)); 455 revents |= events & (POLLIN | POLLRDNORM); 456 } else { 457 DPRINTF(("%s: recording select\n", __func__)); 458 selrecord(l, &sc->sc_rsel); 459 } 460 } 461 splx(s); 462 463 return (revents); 464 } 465 466 static void 467 filt_oboerdetach(struct knote *kn) 468 { 469 struct oboe_softc *sc = kn->kn_hook; 470 int s; 471 472 s = splir(); 473 selremove_knote(&sc->sc_rsel, kn); 474 splx(s); 475 } 476 477 static int 478 filt_oboeread(struct knote *kn, long hint) 479 { 480 struct oboe_softc *sc = kn->kn_hook; 481 482 kn->kn_data = sc->sc_saved; 483 return (kn->kn_data > 0); 484 } 485 486 static void 487 filt_oboewdetach(struct knote *kn) 488 { 489 struct oboe_softc *sc = kn->kn_hook; 490 int s; 491 492 s = splir(); 493 selremove_knote(&sc->sc_wsel, kn); 494 splx(s); 495 } 496 497 static const struct filterops oboeread_filtops = { 498 .f_isfd = 1, 499 .f_attach = NULL, 500 .f_detach = filt_oboerdetach, 501 .f_event = filt_oboeread, 502 }; 503 504 static const struct filterops oboewrite_filtops = { 505 .f_isfd = 1, 506 .f_attach = NULL, 507 .f_detach = filt_oboewdetach, 508 .f_event = filt_seltrue, 509 }; 510 511 static int 512 oboe_kqfilter(void *h, struct knote *kn) 513 { 514 struct oboe_softc *sc = h; 515 struct selinfo *sip; 516 int s; 517 518 switch (kn->kn_filter) { 519 case EVFILT_READ: 520 sip = &sc->sc_rsel; 521 kn->kn_fop = &oboeread_filtops; 522 break; 523 case EVFILT_WRITE: 524 sip = &sc->sc_wsel; 525 kn->kn_fop = &oboewrite_filtops; 526 break; 527 default: 528 return (EINVAL); 529 } 530 531 kn->kn_hook = sc; 532 533 s = splir(); 534 selrecord_knote(sip, kn); 535 splx(s); 536 537 return (0); 538 } 539 540 static int 541 oboe_reset(struct oboe_softc *sc) 542 { 543 #if 0 544 OUTB(sc, 0x00, OBOE_RST); 545 OUTB(sc, 0x80, OBOE_RST); 546 #endif 547 return 0; 548 } 549 550 static int 551 oboe_intr(void *p) 552 { 553 struct oboe_softc *sc = p; 554 uint8_t irqstat = INB(sc, OBOE_ISR); 555 556 if (!(irqstat & 0xf8)) 557 return (0); /* Not for me? */ 558 559 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 560 561 OUTB(sc, irqstat, OBOE_ISR); 562 563 if (irqstat & OBOE_ISR_RXDONE) { 564 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 565 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 566 if (sc->sc_saved == RX_SLOTS) { 567 DPRINTF(("oboe_intr: all buffers filled\n")); 568 return 0; 569 } 570 571 if (len > 2) 572 len -= 2; /* JSP: skip check sum? */ 573 574 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 575 sc->sc_recv_stores[sc->sc_rxs])); 576 memcpy(sc->sc_recv_stores[sc->sc_rxs], 577 sc->sc_recv_bufs[sc->sc_rxs], 578 len); 579 sc->sc_lens[sc->sc_rxs] = len; 580 sc->sc_saved++; 581 #if 0 582 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 583 len, &sc->sc_q); 584 #endif 585 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 586 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 587 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 588 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 589 } 590 DPRINTF(("oboe_intr no more frames available\n")); 591 if (sc->sc_state & OBOE_RSLP) { 592 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 593 sc->sc_state &= ~OBOE_RSLP; 594 DPRINTF(("oboe_intr: waking up reader\n")); 595 wakeup(&sc->sc_rxs); 596 } 597 selnotify(&sc->sc_rsel, 0, 0); 598 DPRINTF(("oboe_intr returning\n")); 599 } 600 if (irqstat & OBOE_ISR_TXDONE) { 601 DPRINTF(("oboe_intr: write done\n")); 602 sc->sc_txpending--; 603 sc->sc_txpackets++; 604 605 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 606 wakeup(&sc->sc_state); 607 return 1; 608 } 609 610 if (sc->sc_state & OBOE_WSLP) { 611 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 612 sc->sc_state &= ~OBOE_WSLP; 613 DPRINTF(("oboe_intr: waking up writer\n")); 614 wakeup(&sc->sc_txs); 615 } 616 selnotify(&sc->sc_wsel, 0, 0); 617 } 618 return (1); 619 } 620 621 /* XXX vtophys must go! */ 622 static void 623 oboe_init_taskfile(struct oboe_softc *sc) 624 { 625 int i; 626 int s = splir(); 627 628 for (i = 0; i < TX_SLOTS; ++i) { 629 sc->sc_taskfile->xmit[i].len = 0; 630 sc->sc_taskfile->xmit[i].control = 0x00; 631 sc->sc_taskfile->xmit[i].buffer = 632 vtophys((uintptr_t)sc->sc_xmit_bufs[i]); 633 } 634 635 for (i = 0; i < RX_SLOTS; ++i) { 636 sc->sc_taskfile->recv[i].len = 0; 637 sc->sc_taskfile->recv[i].control = 0x83; 638 sc->sc_taskfile->recv[i].buffer = 639 vtophys((uintptr_t)sc->sc_recv_bufs[i]); 640 } 641 642 sc->sc_txpending = 0; 643 644 splx(s); 645 } 646 647 static int 648 oboe_alloc_taskfile(struct oboe_softc *sc) 649 { 650 int i; 651 /* XXX */ 652 uintptr_t addr = 653 (uintptr_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 654 655 addr &= ~(sizeof (struct OboeTaskFile) - 1); 656 addr += sizeof (struct OboeTaskFile); 657 sc->sc_taskfile = (struct OboeTaskFile *) addr; 658 659 for (i = 0; i < TX_SLOTS; ++i) { 660 sc->sc_xmit_bufs[i] = 661 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 662 sc->sc_xmit_stores[i] = 663 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 664 } 665 for (i = 0; i < RX_SLOTS; ++i) { 666 sc->sc_recv_bufs[i] = 667 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 668 sc->sc_recv_stores[i] = 669 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 670 } 671 672 return 0; 673 } 674 675 static void 676 oboe_startchip (struct oboe_softc *sc) 677 { 678 uint32_t physaddr; 679 680 OUTB(sc, 0, OBOE_LOCK); 681 OUTB(sc, 0, OBOE_RST); 682 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 683 OUTB(sc, 0xf0, OBOE_REG_D); 684 OUTB(sc, 0xff, OBOE_ISR); 685 OUTB(sc, 0x0f, OBOE_REG_1A); 686 OUTB(sc, 0xff, OBOE_REG_1B); 687 688 physaddr = vtophys((uintptr_t)sc->sc_taskfile); 689 690 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 691 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 692 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 693 694 OUTB(sc, 0x0e, OBOE_REG_11); 695 OUTB(sc, 0x80, OBOE_RST); 696 697 (void)oboe_setbaud(sc, 9600); 698 699 sc->sc_rxs = INB(sc, OBOE_RCVT); 700 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 701 sc->sc_rxs = 0; 702 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 703 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 704 sc->sc_txs = 0; 705 } 706 707 static void 708 oboe_stopchip (struct oboe_softc *sc) 709 { 710 OUTB(sc, 0x0e, OBOE_REG_11); 711 OUTB(sc, 0x00, OBOE_RST); 712 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 713 OUTB(sc, 0xff, OBOE_TFP1); 714 OUTB(sc, 0xff, OBOE_TFP0); 715 OUTB(sc, 0x0f, OBOE_REG_1B); 716 OUTB(sc, 0xff, OBOE_REG_1A); 717 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 718 OUTB(sc, 0x80, OBOE_RST); 719 OUTB(sc, 0x0e, OBOE_LOCK); 720 } 721 722 #define SPEEDCASE(speed, type, divisor) \ 723 case speed: \ 724 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 725 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 726 OUTB(sc, divisor, OBOE_UDIV); \ 727 break 728 729 static int 730 oboe_setbaud(struct oboe_softc *sc, int baud) 731 { 732 int s; 733 734 DPRINTF(("oboe: setting baud to %d\n", baud)); 735 736 s = splir(); 737 738 switch (baud) { 739 SPEEDCASE( 2400, SIR, 0xbf); 740 SPEEDCASE( 9600, SIR, 0x2f); 741 SPEEDCASE( 19200, SIR, 0x17); 742 SPEEDCASE( 38400, SIR, 0x0b); 743 SPEEDCASE( 57600, SIR, 0x07); 744 SPEEDCASE( 115200, SIR, 0x03); 745 SPEEDCASE(1152000, MIR, 0x01); 746 SPEEDCASE(4000000, FIR, 0x00); 747 default: 748 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 749 splx(s); 750 return (EINVAL); 751 } 752 753 OUTB(sc, 0x00, OBOE_RST); 754 OUTB(sc, 0x80, OBOE_RST); 755 OUTB(sc, 0x01, OBOE_REG_9); 756 757 sc->sc_speed = baud; 758 759 splx(s); 760 761 return (0); 762 } 763
Indexes created Tue Sep 30 17:09:57 GMT 2025