oboe.c revision 1.15
1 /* $NetBSD: oboe.c,v 1.15 2003/10/21 03:24:25 fvdl 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 1.15 2003/10/21 03:24:25 fvdl 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 59 #include <dev/ir/ir.h> 60 #include <dev/ir/irdaio.h> 61 #include <dev/ir/irframevar.h> 62 #include <dev/ir/sir.h> 63 64 #include <dev/pci/pcidevs.h> 65 #include <dev/pci/pcivar.h> 66 67 #include <machine/bus.h> 68 #include <machine/intr.h> 69 #include <uvm/uvm_extern.h> 70 71 #include <dev/pci/oboereg.h> 72 73 int oboe_match(struct device *parent, struct cfdata *match, void *aux); 74 void oboe_attach(struct device *parent, struct device *self, void *aux); 75 int oboe_activate(struct device *self, enum devact act); 76 int oboe_detach(struct device *self, int flags); 77 78 int oboe_open(void *h, int flag, int mode, struct proc *p); 79 int oboe_close(void *h, int flag, int mode, struct proc *p); 80 int oboe_read(void *h, struct uio *uio, int flag); 81 int oboe_write(void *h, struct uio *uio, int flag); 82 int oboe_set_params(void *h, struct irda_params *params); 83 int oboe_get_speeds(void *h, int *speeds); 84 int oboe_get_turnarounds(void *h, int *times); 85 int oboe_poll(void *h, int events, struct proc *p); 86 int oboe_kqfilter(void *h, struct knote *kn); 87 88 #ifdef OBOE_DEBUG 89 #define DPRINTF(x) if (oboedebug) printf x 90 int oboedebug = 1; 91 #else 92 #define DPRINTF(x) 93 #endif 94 95 struct oboe_dma; 96 97 struct oboe_softc { 98 struct device sc_dev; 99 struct device *sc_child; 100 struct pci_attach_args sc_pa; 101 pci_intr_handle_t * sc_ih; 102 unsigned int sc_revision; /* PCI Revision ID */ 103 /* I/O Base device */ 104 bus_space_tag_t sc_iot; 105 bus_space_handle_t sc_ioh; 106 bus_dma_tag_t sc_dmatag; 107 struct selinfo sc_rsel; 108 struct selinfo sc_wsel; 109 110 int sc_state; 111 #define OBOE_RSLP 0x01 /* waiting for data (read) */ 112 #define OBOE_WSLP 0x02 /* waiting for data (write) */ 113 #define OBOE_CLOSING 0x04 /* waiting for output to drain */ 114 115 int sc_speeds; 116 int sc_flags; 117 int sc_speed; 118 int sc_ebofs; 119 120 struct oboe_dma *sc_dmas; 121 struct OboeTaskFile *sc_taskfile; /* The taskfile */ 122 u_char * sc_xmit_bufs[TX_SLOTS]; 123 u_char * sc_recv_bufs[RX_SLOTS]; 124 void * sc_xmit_stores[TX_SLOTS]; 125 void * sc_recv_stores[RX_SLOTS]; 126 int sc_txs; /* Current transmit slot number */ 127 int sc_rxs; /* Current receive slot number */ 128 int sc_saved; /* number of saved frames */ 129 int sc_lens[RX_SLOTS]; 130 131 int sc_txpending; 132 133 /* Statistics */ 134 int sc_txpackets; 135 int sc_rxpackets; 136 int sc_txerrors; 137 int sc_rxerrors; 138 }; 139 140 static int oboe_intr(void *handle); 141 static int oboe_reset(struct oboe_softc *); 142 143 struct oboe_dma { 144 bus_dmamap_t map; 145 caddr_t addr; 146 bus_dma_segment_t segs[1]; 147 int nsegs; 148 size_t size; 149 struct oboe_dma *next; 150 }; 151 152 #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) 153 #define KERNADDR(p) ((void *)((p)->addr)) 154 155 static int oboe_alloc_taskfile(struct oboe_softc *); 156 static void oboe_init_taskfile(struct oboe_softc *); 157 static void oboe_startchip(struct oboe_softc *); 158 static void oboe_stopchip(struct oboe_softc *); 159 static int oboe_setbaud(struct oboe_softc *, int); 160 161 CFATTACH_DECL(oboe, sizeof(struct oboe_softc), 162 oboe_match, oboe_attach, oboe_detach, oboe_activate); 163 164 struct irframe_methods oboe_methods = { 165 oboe_open, oboe_close, oboe_read, oboe_write, oboe_poll, 166 oboe_kqfilter, oboe_set_params, oboe_get_speeds, oboe_get_turnarounds 167 }; 168 169 int 170 oboe_match(struct device *parent, struct cfdata *match, void *aux) 171 { 172 struct pci_attach_args *pa = aux; 173 174 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 175 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 176 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 177 return (1); 178 return 0; 179 } 180 181 void 182 oboe_attach(struct device *parent, struct device *self, void *aux) 183 { 184 struct oboe_softc *sc = (struct oboe_softc *)self; 185 struct pci_attach_args *pa = aux; 186 pci_intr_handle_t ih; 187 struct ir_attach_args ia; 188 const char *intrstring; 189 190 sc->sc_revision = PCI_REVISION(pa->pa_class); 191 printf(": Toshiba Fast Infrared Type O, revision %d\n", 192 sc->sc_revision); 193 194 /* Map I/O registers. */ 195 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 196 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 197 printf("%s: can't map I/O space\n", sc->sc_dev.dv_xname); 198 return; 199 } 200 201 sc->sc_dmatag = pa->pa_dmat; 202 203 ia.ia_type = IR_TYPE_IRFRAME; 204 ia.ia_methods = &oboe_methods; 205 ia.ia_handle = sc; 206 207 sc->sc_state = 0; 208 sc->sc_speed = IRDA_SPEED_9600; 209 210 /* Enable the device */ 211 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 212 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 213 PCI_COMMAND_MASTER_ENABLE); 214 215 /* Reset the device; bail out upon failure. */ 216 if (oboe_reset(sc) != 0) { 217 printf("%s: can't reset\n", sc->sc_dev.dv_xname); 218 return; 219 } 220 /* Map and establish the interrupt. */ 221 if (pci_intr_map(pa, &ih)) { 222 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 223 return; 224 } 225 intrstring = pci_intr_string(pa->pa_pc, ih); 226 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_IR, oboe_intr, sc); 227 if (sc->sc_ih == NULL) { 228 printf("%s: couldn't establish interrupt", 229 sc->sc_dev.dv_xname); 230 if (intrstring != NULL) 231 printf(" at %s", intrstring); 232 printf("\n"); 233 return; 234 } 235 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstring); 236 237 sc->sc_txs = 0; 238 sc->sc_rxs = 0; 239 240 sc->sc_speeds = 241 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 242 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 243 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 244 245 oboe_alloc_taskfile(sc); 246 247 sc->sc_child = config_found((void *)sc, &ia, ir_print); 248 } 249 250 int 251 oboe_activate(struct device *self, enum devact act) 252 { 253 struct oboe_softc *sc = (struct oboe_softc *)self; 254 int error; 255 256 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 257 258 switch (act) { 259 case DVACT_ACTIVATE: 260 return (EOPNOTSUPP); 261 break; 262 263 case DVACT_DEACTIVATE: 264 if (sc->sc_child != NULL) 265 error = config_deactivate(sc->sc_child); 266 else 267 error = 0; 268 break; 269 } 270 return (error); 271 } 272 273 int 274 oboe_detach(struct device *self, int flags) 275 { 276 #if 0 277 struct oboe_softc *sc = (struct oboe_softc *)self; 278 #endif 279 /* XXX needs reference counting for proper detach. */ 280 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 281 return (0); 282 } 283 284 int 285 oboe_open(void *h, int flag, int mode, struct proc *p) 286 { 287 struct oboe_softc *sc = h; 288 289 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 290 291 sc->sc_state = 0; 292 sc->sc_saved = 0; 293 oboe_init_taskfile(sc); 294 oboe_startchip(sc); 295 296 return (0); 297 } 298 299 int 300 oboe_close(void *h, int flag, int mode, struct proc *p) 301 { 302 struct oboe_softc *sc = h; 303 int error = 0; 304 int s = splir(); 305 306 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 307 /* Wait for output to drain */ 308 309 if (sc->sc_txpending > 0) { 310 sc->sc_state |= OBOE_CLOSING; 311 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 312 } 313 splx(s); 314 315 oboe_stopchip(sc); 316 return (error); 317 } 318 319 int 320 oboe_read(void *h, struct uio *uio, int flag) 321 { 322 struct oboe_softc *sc = h; 323 int error = 0; 324 int s; 325 int slot; 326 327 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 328 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 329 (long)uio->uio_offset)); 330 331 s = splir(); 332 while (sc->sc_saved == 0) { 333 if (flag & IO_NDELAY) { 334 splx(s); 335 return (EWOULDBLOCK); 336 } 337 sc->sc_state |= OBOE_RSLP; 338 DPRINTF(("oboe_read: sleep\n")); 339 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 340 DPRINTF(("oboe_read: woke, error=%d\n", error)); 341 if (error) { 342 sc->sc_state &= ~OBOE_RSLP; 343 break; 344 } 345 } 346 347 /* Do just one frame transfer per read */ 348 349 if (!error) { 350 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 351 if (uio->uio_resid < sc->sc_lens[slot]) { 352 DPRINTF(("oboe_read: uio buffer smaller than frame size" 353 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 354 error = EINVAL; 355 } else { 356 DPRINTF(("oboe_read: moving %d bytes from %p\n", 357 sc->sc_lens[slot], 358 sc->sc_recv_stores[slot])); 359 error = uiomove(sc->sc_recv_stores[slot], 360 sc->sc_lens[slot], uio); 361 } 362 } 363 sc->sc_saved--; 364 splx(s); 365 366 return (error); 367 } 368 369 int 370 oboe_write(void *h, struct uio *uio, int flag) 371 { 372 struct oboe_softc *sc = h; 373 int error = 0; 374 int n; 375 int s = splir(); 376 377 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 378 while (sc->sc_txpending == TX_SLOTS) { 379 if (flag & IO_NDELAY) { 380 splx(s); 381 return (EWOULDBLOCK); 382 } 383 sc->sc_state |= OBOE_WSLP; 384 DPRINTF(("oboe_write: sleep\n")); 385 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 386 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 387 if (error) { 388 sc->sc_state &= ~OBOE_WSLP; 389 break; 390 } 391 } 392 if (error) 393 goto err; 394 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 395 DPRINTF(("oboe_write: slot overrun\n")); 396 } 397 398 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 399 sc->sc_ebofs); 400 if (n < 0) { 401 error = -n; 402 goto err; 403 } 404 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 405 406 OUTB(sc, 0, OBOE_RST); 407 OUTB(sc, 0x1e, OBOE_REG_11); 408 409 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 410 411 /* XXX Need delay here??? */ 412 delay(1000); 413 414 sc->sc_txpending++; 415 OUTB(sc, 0x80, OBOE_RST); 416 OUTB(sc, 1, OBOE_REG_9); 417 sc->sc_txs++; 418 sc->sc_txs %= TX_SLOTS; 419 420 err: 421 splx(s); 422 return (error); 423 } 424 425 int 426 oboe_set_params(void *h, struct irda_params *p) 427 { 428 struct oboe_softc *sc = h; 429 int error; 430 431 if (p->speed > 0) { 432 error = oboe_setbaud(sc, p->speed); 433 if (error) 434 return (error); 435 } 436 sc->sc_ebofs = p->ebofs; 437 438 /* XXX ignore ebofs and maxsize for now */ 439 return (0); 440 } 441 442 int 443 oboe_get_speeds(void *h, int *speeds) 444 { 445 struct oboe_softc *sc = h; 446 *speeds = sc->sc_speeds; 447 return (0); 448 } 449 450 int 451 oboe_get_turnarounds(void *h, int *turnarounds) 452 { 453 #if 0 454 struct oboe_softc *sc = h; 455 #endif 456 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 457 /* XXX Linux driver sets all bits */ 458 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 459 return (0); 460 } 461 462 int 463 oboe_poll(void *h, int events, struct proc *p) 464 { 465 struct oboe_softc *sc = h; 466 int revents = 0; 467 int s; 468 469 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 470 471 s = splir(); 472 if (events & (POLLOUT | POLLWRNORM)) 473 revents |= events & (POLLOUT | POLLWRNORM); 474 if (events & (POLLIN | POLLRDNORM)) { 475 if (sc->sc_saved > 0) { 476 DPRINTF(("%s: have data\n", __FUNCTION__)); 477 revents |= events & (POLLIN | POLLRDNORM); 478 } else { 479 DPRINTF(("%s: recording select\n", __FUNCTION__)); 480 selrecord(p, &sc->sc_rsel); 481 } 482 } 483 splx(s); 484 485 return (revents); 486 } 487 488 static void 489 filt_oboerdetach(struct knote *kn) 490 { 491 struct oboe_softc *sc = kn->kn_hook; 492 int s; 493 494 s = splir(); 495 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 496 splx(s); 497 } 498 499 static int 500 filt_oboeread(struct knote *kn, long hint) 501 { 502 struct oboe_softc *sc = kn->kn_hook; 503 504 kn->kn_data = sc->sc_saved; 505 return (kn->kn_data > 0); 506 } 507 508 static void 509 filt_oboewdetach(struct knote *kn) 510 { 511 struct oboe_softc *sc = kn->kn_hook; 512 int s; 513 514 s = splir(); 515 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 516 splx(s); 517 } 518 519 static const struct filterops oboeread_filtops = 520 { 1, NULL, filt_oboerdetach, filt_oboeread }; 521 static const struct filterops oboewrite_filtops = 522 { 1, NULL, filt_oboewdetach, filt_seltrue }; 523 524 int 525 oboe_kqfilter(void *h, struct knote *kn) 526 { 527 struct oboe_softc *sc = h; 528 struct klist *klist; 529 int s; 530 531 switch (kn->kn_filter) { 532 case EVFILT_READ: 533 klist = &sc->sc_rsel.sel_klist; 534 kn->kn_fop = &oboeread_filtops; 535 break; 536 case EVFILT_WRITE: 537 klist = &sc->sc_wsel.sel_klist; 538 kn->kn_fop = &oboewrite_filtops; 539 break; 540 default: 541 return (1); 542 } 543 544 kn->kn_hook = sc; 545 546 s = splir(); 547 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 548 splx(s); 549 550 return (0); 551 } 552 553 static int 554 oboe_reset(struct oboe_softc *sc) 555 { 556 #if 0 557 OUTB(sc, 0x00, OBOE_RST); 558 OUTB(sc, 0x80, OBOE_RST); 559 #endif 560 return 0; 561 } 562 563 static int 564 oboe_intr(void *p) 565 { 566 struct oboe_softc *sc = p; 567 uint8_t irqstat = INB(sc, OBOE_ISR); 568 569 if (!(irqstat & 0xf8)) 570 return (0); /* Not for me? */ 571 572 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 573 574 OUTB(sc, irqstat, OBOE_ISR); 575 576 if (irqstat & OBOE_ISR_RXDONE) { 577 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 578 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 579 if (sc->sc_saved == RX_SLOTS) { 580 DPRINTF(("oboe_intr: all buffers filled\n")); 581 return 0; 582 } 583 584 if (len > 2) 585 len -= 2; /* JSP: skip check sum? */ 586 587 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 588 sc->sc_recv_stores[sc->sc_rxs])); 589 memcpy(sc->sc_recv_stores[sc->sc_rxs], 590 sc->sc_recv_bufs[sc->sc_rxs], 591 len); 592 sc->sc_lens[sc->sc_rxs] = len; 593 sc->sc_saved++; 594 #if 0 595 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 596 len, &sc->sc_q); 597 #endif 598 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 599 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 600 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 601 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 602 } 603 DPRINTF(("oboe_intr no more frames available\n")); 604 if (sc->sc_state & OBOE_RSLP) { 605 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 606 sc->sc_state &= ~OBOE_RSLP; 607 DPRINTF(("oboe_intr: waking up reader\n")); 608 wakeup(&sc->sc_rxs); 609 } 610 selnotify(&sc->sc_rsel, 0); 611 DPRINTF(("oboe_intr returning\n")); 612 } 613 if (irqstat & OBOE_ISR_TXDONE) { 614 DPRINTF(("oboe_intr: write done\n")); 615 sc->sc_txpending--; 616 sc->sc_txpackets++; 617 618 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 619 wakeup(&sc->sc_state); 620 return 1; 621 } 622 623 if (sc->sc_state & OBOE_WSLP) { 624 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 625 sc->sc_state &= ~OBOE_WSLP; 626 DPRINTF(("oboe_intr: waking up writer\n")); 627 wakeup(&sc->sc_txs); 628 } 629 selnotify(&sc->sc_wsel, 0); 630 } 631 return (1); 632 } 633 634 /* XXX vtophys must go! */ 635 static void 636 oboe_init_taskfile(struct oboe_softc *sc) 637 { 638 int i; 639 int s = splir(); 640 641 for (i = 0; i < TX_SLOTS; ++i) { 642 sc->sc_taskfile->xmit[i].len = 0; 643 sc->sc_taskfile->xmit[i].control = 0x00; 644 sc->sc_taskfile->xmit[i].buffer = 645 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 646 } 647 648 for (i = 0; i < RX_SLOTS; ++i) { 649 sc->sc_taskfile->recv[i].len = 0; 650 sc->sc_taskfile->recv[i].control = 0x83; 651 sc->sc_taskfile->recv[i].buffer = 652 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 653 } 654 655 sc->sc_txpending = 0; 656 657 splx(s); 658 } 659 660 static int 661 oboe_alloc_taskfile(struct oboe_softc *sc) 662 { 663 int i; 664 /* XXX */ 665 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 666 if (addr == 0) { 667 goto bad; 668 } 669 addr &= ~(sizeof (struct OboeTaskFile) - 1); 670 addr += sizeof (struct OboeTaskFile); 671 sc->sc_taskfile = (struct OboeTaskFile *) addr; 672 673 for (i = 0; i < TX_SLOTS; ++i) { 674 sc->sc_xmit_bufs[i] = 675 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 676 sc->sc_xmit_stores[i] = 677 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 678 if (sc->sc_xmit_bufs[i] == NULL || 679 sc->sc_xmit_stores[i] == NULL) { 680 goto bad; 681 } 682 } 683 for (i = 0; i < RX_SLOTS; ++i) { 684 sc->sc_recv_bufs[i] = 685 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 686 sc->sc_recv_stores[i] = 687 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 688 if (sc->sc_recv_bufs[i] == NULL || 689 sc->sc_recv_stores[i] == NULL) { 690 goto bad; 691 } 692 } 693 694 return 0; 695 bad: 696 printf("oboe: malloc for buffers failed()\n"); 697 return 1; 698 } 699 700 static void 701 oboe_startchip (struct oboe_softc *sc) 702 { 703 uint32_t physaddr; 704 705 OUTB(sc, 0, OBOE_LOCK); 706 OUTB(sc, 0, OBOE_RST); 707 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 708 OUTB(sc, 0xf0, OBOE_REG_D); 709 OUTB(sc, 0xff, OBOE_ISR); 710 OUTB(sc, 0x0f, OBOE_REG_1A); 711 OUTB(sc, 0xff, OBOE_REG_1B); 712 713 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 714 715 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 716 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 717 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 718 719 OUTB(sc, 0x0e, OBOE_REG_11); 720 OUTB(sc, 0x80, OBOE_RST); 721 722 (void)oboe_setbaud(sc, 9600); 723 724 sc->sc_rxs = INB(sc, OBOE_RCVT); 725 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 726 sc->sc_rxs = 0; 727 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 728 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 729 sc->sc_txs = 0; 730 } 731 732 static void 733 oboe_stopchip (struct oboe_softc *sc) 734 { 735 OUTB(sc, 0x0e, OBOE_REG_11); 736 OUTB(sc, 0x00, OBOE_RST); 737 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 738 OUTB(sc, 0xff, OBOE_TFP1); 739 OUTB(sc, 0xff, OBOE_TFP0); 740 OUTB(sc, 0x0f, OBOE_REG_1B); 741 OUTB(sc, 0xff, OBOE_REG_1A); 742 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 743 OUTB(sc, 0x80, OBOE_RST); 744 OUTB(sc, 0x0e, OBOE_LOCK); 745 } 746 747 #define SPEEDCASE(speed, type, divisor) \ 748 case speed: \ 749 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 750 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 751 OUTB(sc, divisor, OBOE_UDIV); \ 752 break 753 754 static int 755 oboe_setbaud(struct oboe_softc *sc, int baud) 756 { 757 int s; 758 759 DPRINTF(("oboe: setting baud to %d\n", baud)); 760 761 s = splir(); 762 763 switch (baud) { 764 SPEEDCASE( 2400, SIR, 0xbf); 765 SPEEDCASE( 9600, SIR, 0x2f); 766 SPEEDCASE( 19200, SIR, 0x17); 767 SPEEDCASE( 38400, SIR, 0x0b); 768 SPEEDCASE( 57600, SIR, 0x07); 769 SPEEDCASE( 115200, SIR, 0x03); 770 SPEEDCASE(1152000, MIR, 0x01); 771 SPEEDCASE(4000000, FIR, 0x00); 772 default: 773 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 774 splx(s); 775 return (EINVAL); 776 } 777 778 OUTB(sc, 0x00, OBOE_RST); 779 OUTB(sc, 0x80, OBOE_RST); 780 OUTB(sc, 0x01, OBOE_REG_9); 781 782 sc->sc_speed = baud; 783 784 splx(s); 785 786 return (0); 787 } 788
Indexes created Tue Sep 30 11:09:46 GMT 2025