oboe.c revision 1.45
1 /* $NetBSD: oboe.c,v 1.45 2017/10/25 08:12:38 maya 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 1.45 2017/10/25 08:12:38 maya 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(pa->pa_pc, ih, IPL_IR, oboe_intr, sc); 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 selinit(&sc->sc_wsel); 230 231 sc->sc_txs = 0; 232 sc->sc_rxs = 0; 233 234 sc->sc_speeds = 235 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 236 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 237 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 238 239 oboe_alloc_taskfile(sc); 240 241 sc->sc_child = config_found(self, &ia, ir_print); 242 } 243 244 static int 245 oboe_detach(device_t self, int flags) 246 { 247 struct oboe_softc *sc = device_private(self); 248 249 #ifdef OBOE_DEBUG 250 /* XXX needs reference counting for proper detach. */ 251 DPRINTF(("%s: sc=%p\n", __func__, sc)); 252 #endif 253 seldestroy(&sc->sc_rsel); 254 seldestroy(&sc->sc_wsel); 255 return (0); 256 } 257 258 static int 259 oboe_open(void *h, int flag, int mode, struct lwp *l) 260 { 261 struct oboe_softc *sc = h; 262 263 DPRINTF(("%s: sc=%p\n", __func__, sc)); 264 265 sc->sc_state = 0; 266 sc->sc_saved = 0; 267 oboe_init_taskfile(sc); 268 oboe_startchip(sc); 269 270 return (0); 271 } 272 273 static int 274 oboe_close(void *h, int flag, int mode, 275 struct lwp *l) 276 { 277 struct oboe_softc *sc = h; 278 int error = 0; 279 int s = splir(); 280 281 DPRINTF(("%s: sc=%p\n", __func__, sc)); 282 /* Wait for output to drain */ 283 284 if (sc->sc_txpending > 0) { 285 sc->sc_state |= OBOE_CLOSING; 286 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 287 } 288 splx(s); 289 290 oboe_stopchip(sc); 291 return (error); 292 } 293 294 static int 295 oboe_read(void *h, struct uio *uio, int flag) 296 { 297 struct oboe_softc *sc = h; 298 int error = 0; 299 int s; 300 int slot; 301 302 DPRINTF(("%s: resid=%zu, iovcnt=%d, offset=%jd\n", 303 __func__, uio->uio_resid, uio->uio_iovcnt, 304 (intmax_t)uio->uio_offset)); 305 306 s = splir(); 307 while (sc->sc_saved == 0) { 308 if (flag & IO_NDELAY) { 309 splx(s); 310 return (EWOULDBLOCK); 311 } 312 sc->sc_state |= OBOE_RSLP; 313 DPRINTF(("oboe_read: sleep\n")); 314 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 315 DPRINTF(("oboe_read: woke, error=%d\n", error)); 316 if (error) { 317 sc->sc_state &= ~OBOE_RSLP; 318 break; 319 } 320 } 321 322 /* Do just one frame transfer per read */ 323 324 if (!error) { 325 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 326 if (uio->uio_resid < sc->sc_lens[slot]) { 327 DPRINTF(("oboe_read: uio buffer smaller than frame size" 328 "(%zu < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 329 error = EINVAL; 330 } else { 331 DPRINTF(("oboe_read: moving %d bytes from %p\n", 332 sc->sc_lens[slot], 333 sc->sc_recv_stores[slot])); 334 error = uiomove(sc->sc_recv_stores[slot], 335 sc->sc_lens[slot], uio); 336 } 337 } 338 sc->sc_saved--; 339 splx(s); 340 341 return (error); 342 } 343 344 static int 345 oboe_write(void *h, struct uio *uio, int flag) 346 { 347 struct oboe_softc *sc = h; 348 int error = 0; 349 int n; 350 int s = splir(); 351 352 DPRINTF(("%s: sc=%p\n", __func__, sc)); 353 while (sc->sc_txpending == TX_SLOTS) { 354 if (flag & IO_NDELAY) { 355 splx(s); 356 return (EWOULDBLOCK); 357 } 358 sc->sc_state |= OBOE_WSLP; 359 DPRINTF(("oboe_write: sleep\n")); 360 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 361 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 362 if (error) { 363 sc->sc_state &= ~OBOE_WSLP; 364 break; 365 } 366 } 367 if (error) 368 goto err; 369 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 370 DPRINTF(("oboe_write: slot overrun\n")); 371 } 372 373 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 374 sc->sc_ebofs); 375 if (n < 0) { 376 error = -n; 377 goto err; 378 } 379 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 380 381 OUTB(sc, 0, OBOE_RST); 382 OUTB(sc, 0x1e, OBOE_REG_11); 383 384 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 385 386 /* XXX Need delay here??? */ 387 delay(1000); 388 389 sc->sc_txpending++; 390 OUTB(sc, 0x80, OBOE_RST); 391 OUTB(sc, 1, OBOE_REG_9); 392 sc->sc_txs++; 393 sc->sc_txs %= TX_SLOTS; 394 395 err: 396 splx(s); 397 return (error); 398 } 399 400 static int 401 oboe_set_params(void *h, struct irda_params *p) 402 { 403 struct oboe_softc *sc = h; 404 int error; 405 406 if (p->speed > 0) { 407 error = oboe_setbaud(sc, p->speed); 408 if (error) 409 return (error); 410 } 411 sc->sc_ebofs = p->ebofs; 412 413 /* XXX ignore ebofs and maxsize for now */ 414 return (0); 415 } 416 417 static int 418 oboe_get_speeds(void *h, int *speeds) 419 { 420 struct oboe_softc *sc = h; 421 *speeds = sc->sc_speeds; 422 return (0); 423 } 424 425 static int 426 oboe_get_turnarounds(void *h, int *turnarounds) 427 { 428 #ifdef OBOE_DEBUG 429 struct oboe_softc *sc = h; 430 DPRINTF(("%s: sc=%p\n", __func__, sc)); 431 #endif 432 433 /* XXX Linux driver sets all bits */ 434 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 435 436 return (0); 437 } 438 439 static int 440 oboe_poll(void *h, int events, struct lwp *l) 441 { 442 struct oboe_softc *sc = h; 443 int revents = 0; 444 int s; 445 446 DPRINTF(("%s: sc=%p\n", __func__, sc)); 447 448 s = splir(); 449 if (events & (POLLOUT | POLLWRNORM)) 450 revents |= events & (POLLOUT | POLLWRNORM); 451 if (events & (POLLIN | POLLRDNORM)) { 452 if (sc->sc_saved > 0) { 453 DPRINTF(("%s: have data\n", __func__)); 454 revents |= events & (POLLIN | POLLRDNORM); 455 } else { 456 DPRINTF(("%s: recording select\n", __func__)); 457 selrecord(l, &sc->sc_rsel); 458 } 459 } 460 splx(s); 461 462 return (revents); 463 } 464 465 static void 466 filt_oboerdetach(struct knote *kn) 467 { 468 struct oboe_softc *sc = kn->kn_hook; 469 int s; 470 471 s = splir(); 472 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 473 splx(s); 474 } 475 476 static int 477 filt_oboeread(struct knote *kn, long hint) 478 { 479 struct oboe_softc *sc = kn->kn_hook; 480 481 kn->kn_data = sc->sc_saved; 482 return (kn->kn_data > 0); 483 } 484 485 static void 486 filt_oboewdetach(struct knote *kn) 487 { 488 struct oboe_softc *sc = kn->kn_hook; 489 int s; 490 491 s = splir(); 492 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 493 splx(s); 494 } 495 496 static const struct filterops oboeread_filtops = { 497 .f_isfd = 1, 498 .f_attach = NULL, 499 .f_detach = filt_oboerdetach, 500 .f_event = filt_oboeread, 501 }; 502 503 static const struct filterops oboewrite_filtops = { 504 .f_isfd = 1, 505 .f_attach = NULL, 506 .f_detach = filt_oboewdetach, 507 .f_event = filt_seltrue, 508 }; 509 510 static int 511 oboe_kqfilter(void *h, struct knote *kn) 512 { 513 struct oboe_softc *sc = h; 514 struct klist *klist; 515 int s; 516 517 switch (kn->kn_filter) { 518 case EVFILT_READ: 519 klist = &sc->sc_rsel.sel_klist; 520 kn->kn_fop = &oboeread_filtops; 521 break; 522 case EVFILT_WRITE: 523 klist = &sc->sc_wsel.sel_klist; 524 kn->kn_fop = &oboewrite_filtops; 525 break; 526 default: 527 return (EINVAL); 528 } 529 530 kn->kn_hook = sc; 531 532 s = splir(); 533 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 534 splx(s); 535 536 return (0); 537 } 538 539 static int 540 oboe_reset(struct oboe_softc *sc) 541 { 542 #if 0 543 OUTB(sc, 0x00, OBOE_RST); 544 OUTB(sc, 0x80, OBOE_RST); 545 #endif 546 return 0; 547 } 548 549 static int 550 oboe_intr(void *p) 551 { 552 struct oboe_softc *sc = p; 553 uint8_t irqstat = INB(sc, OBOE_ISR); 554 555 if (!(irqstat & 0xf8)) 556 return (0); /* Not for me? */ 557 558 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 559 560 OUTB(sc, irqstat, OBOE_ISR); 561 562 if (irqstat & OBOE_ISR_RXDONE) { 563 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 564 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 565 if (sc->sc_saved == RX_SLOTS) { 566 DPRINTF(("oboe_intr: all buffers filled\n")); 567 return 0; 568 } 569 570 if (len > 2) 571 len -= 2; /* JSP: skip check sum? */ 572 573 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 574 sc->sc_recv_stores[sc->sc_rxs])); 575 memcpy(sc->sc_recv_stores[sc->sc_rxs], 576 sc->sc_recv_bufs[sc->sc_rxs], 577 len); 578 sc->sc_lens[sc->sc_rxs] = len; 579 sc->sc_saved++; 580 #if 0 581 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 582 len, &sc->sc_q); 583 #endif 584 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 585 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 586 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 587 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 588 } 589 DPRINTF(("oboe_intr no more frames available\n")); 590 if (sc->sc_state & OBOE_RSLP) { 591 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 592 sc->sc_state &= ~OBOE_RSLP; 593 DPRINTF(("oboe_intr: waking up reader\n")); 594 wakeup(&sc->sc_rxs); 595 } 596 selnotify(&sc->sc_rsel, 0, 0); 597 DPRINTF(("oboe_intr returning\n")); 598 } 599 if (irqstat & OBOE_ISR_TXDONE) { 600 DPRINTF(("oboe_intr: write done\n")); 601 sc->sc_txpending--; 602 sc->sc_txpackets++; 603 604 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 605 wakeup(&sc->sc_state); 606 return 1; 607 } 608 609 if (sc->sc_state & OBOE_WSLP) { 610 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 611 sc->sc_state &= ~OBOE_WSLP; 612 DPRINTF(("oboe_intr: waking up writer\n")); 613 wakeup(&sc->sc_txs); 614 } 615 selnotify(&sc->sc_wsel, 0, 0); 616 } 617 return (1); 618 } 619 620 /* XXX vtophys must go! */ 621 static void 622 oboe_init_taskfile(struct oboe_softc *sc) 623 { 624 int i; 625 int s = splir(); 626 627 for (i = 0; i < TX_SLOTS; ++i) { 628 sc->sc_taskfile->xmit[i].len = 0; 629 sc->sc_taskfile->xmit[i].control = 0x00; 630 sc->sc_taskfile->xmit[i].buffer = 631 vtophys((uintptr_t)sc->sc_xmit_bufs[i]); 632 } 633 634 for (i = 0; i < RX_SLOTS; ++i) { 635 sc->sc_taskfile->recv[i].len = 0; 636 sc->sc_taskfile->recv[i].control = 0x83; 637 sc->sc_taskfile->recv[i].buffer = 638 vtophys((uintptr_t)sc->sc_recv_bufs[i]); 639 } 640 641 sc->sc_txpending = 0; 642 643 splx(s); 644 } 645 646 static int 647 oboe_alloc_taskfile(struct oboe_softc *sc) 648 { 649 int i; 650 /* XXX */ 651 uintptr_t addr = 652 (uintptr_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 653 654 addr &= ~(sizeof (struct OboeTaskFile) - 1); 655 addr += sizeof (struct OboeTaskFile); 656 sc->sc_taskfile = (struct OboeTaskFile *) addr; 657 658 for (i = 0; i < TX_SLOTS; ++i) { 659 sc->sc_xmit_bufs[i] = 660 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 661 sc->sc_xmit_stores[i] = 662 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 663 } 664 for (i = 0; i < RX_SLOTS; ++i) { 665 sc->sc_recv_bufs[i] = 666 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 667 sc->sc_recv_stores[i] = 668 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 669 } 670 671 return 0; 672 } 673 674 static void 675 oboe_startchip (struct oboe_softc *sc) 676 { 677 uint32_t physaddr; 678 679 OUTB(sc, 0, OBOE_LOCK); 680 OUTB(sc, 0, OBOE_RST); 681 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 682 OUTB(sc, 0xf0, OBOE_REG_D); 683 OUTB(sc, 0xff, OBOE_ISR); 684 OUTB(sc, 0x0f, OBOE_REG_1A); 685 OUTB(sc, 0xff, OBOE_REG_1B); 686 687 physaddr = vtophys((uintptr_t)sc->sc_taskfile); 688 689 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 690 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 691 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 692 693 OUTB(sc, 0x0e, OBOE_REG_11); 694 OUTB(sc, 0x80, OBOE_RST); 695 696 (void)oboe_setbaud(sc, 9600); 697 698 sc->sc_rxs = INB(sc, OBOE_RCVT); 699 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 700 sc->sc_rxs = 0; 701 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 702 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 703 sc->sc_txs = 0; 704 } 705 706 static void 707 oboe_stopchip (struct oboe_softc *sc) 708 { 709 OUTB(sc, 0x0e, OBOE_REG_11); 710 OUTB(sc, 0x00, OBOE_RST); 711 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 712 OUTB(sc, 0xff, OBOE_TFP1); 713 OUTB(sc, 0xff, OBOE_TFP0); 714 OUTB(sc, 0x0f, OBOE_REG_1B); 715 OUTB(sc, 0xff, OBOE_REG_1A); 716 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 717 OUTB(sc, 0x80, OBOE_RST); 718 OUTB(sc, 0x0e, OBOE_LOCK); 719 } 720 721 #define SPEEDCASE(speed, type, divisor) \ 722 case speed: \ 723 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 724 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 725 OUTB(sc, divisor, OBOE_UDIV); \ 726 break 727 728 static int 729 oboe_setbaud(struct oboe_softc *sc, int baud) 730 { 731 int s; 732 733 DPRINTF(("oboe: setting baud to %d\n", baud)); 734 735 s = splir(); 736 737 switch (baud) { 738 SPEEDCASE( 2400, SIR, 0xbf); 739 SPEEDCASE( 9600, SIR, 0x2f); 740 SPEEDCASE( 19200, SIR, 0x17); 741 SPEEDCASE( 38400, SIR, 0x0b); 742 SPEEDCASE( 57600, SIR, 0x07); 743 SPEEDCASE( 115200, SIR, 0x03); 744 SPEEDCASE(1152000, MIR, 0x01); 745 SPEEDCASE(4000000, FIR, 0x00); 746 default: 747 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 748 splx(s); 749 return (EINVAL); 750 } 751 752 OUTB(sc, 0x00, OBOE_RST); 753 OUTB(sc, 0x80, OBOE_RST); 754 OUTB(sc, 0x01, OBOE_REG_9); 755 756 sc->sc_speed = baud; 757 758 splx(s); 759 760 return (0); 761 } 762
Indexes created Tue Sep 30 20:09:53 GMT 2025