oboe.c revision 1.19
1 /* $NetBSD: oboe.c,v 1.19 2005/06/28 00:28:42 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 * 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 1.19 2005/06/28 00:28:42 thorpej 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 static int oboe_match(struct device *parent, struct cfdata *match, void *aux); 74 static void oboe_attach(struct device *parent, struct device *self, void *aux); 75 static int oboe_activate(struct device *self, enum devact act); 76 static int oboe_detach(struct device *self, int flags); 77 78 static int oboe_open(void *h, int flag, int mode, struct proc *p); 79 static int oboe_close(void *h, int flag, int mode, struct proc *p); 80 static int oboe_read(void *h, struct uio *uio, int flag); 81 static int oboe_write(void *h, struct uio *uio, int flag); 82 static int oboe_set_params(void *h, struct irda_params *params); 83 static int oboe_get_speeds(void *h, int *speeds); 84 static int oboe_get_turnarounds(void *h, int *times); 85 static int oboe_poll(void *h, int events, struct proc *p); 86 static 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 static 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 static 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 static 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 static int 251 oboe_activate(struct device *self, enum devact act) 252 { 253 struct oboe_softc *sc = (struct oboe_softc *)self; 254 int error = 0; 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 break; 267 } 268 return (error); 269 } 270 271 static int 272 oboe_detach(struct device *self, int flags) 273 { 274 #if 0 275 struct oboe_softc *sc = (struct oboe_softc *)self; 276 #endif 277 /* XXX needs reference counting for proper detach. */ 278 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 279 return (0); 280 } 281 282 static int 283 oboe_open(void *h, int flag, int mode, struct proc *p) 284 { 285 struct oboe_softc *sc = h; 286 287 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 288 289 sc->sc_state = 0; 290 sc->sc_saved = 0; 291 oboe_init_taskfile(sc); 292 oboe_startchip(sc); 293 294 return (0); 295 } 296 297 static int 298 oboe_close(void *h, int flag, int mode, struct proc *p) 299 { 300 struct oboe_softc *sc = h; 301 int error = 0; 302 int s = splir(); 303 304 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 305 /* Wait for output to drain */ 306 307 if (sc->sc_txpending > 0) { 308 sc->sc_state |= OBOE_CLOSING; 309 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 310 } 311 splx(s); 312 313 oboe_stopchip(sc); 314 return (error); 315 } 316 317 static int 318 oboe_read(void *h, struct uio *uio, int flag) 319 { 320 struct oboe_softc *sc = h; 321 int error = 0; 322 int s; 323 int slot; 324 325 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 326 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 327 (long)uio->uio_offset)); 328 329 s = splir(); 330 while (sc->sc_saved == 0) { 331 if (flag & IO_NDELAY) { 332 splx(s); 333 return (EWOULDBLOCK); 334 } 335 sc->sc_state |= OBOE_RSLP; 336 DPRINTF(("oboe_read: sleep\n")); 337 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 338 DPRINTF(("oboe_read: woke, error=%d\n", error)); 339 if (error) { 340 sc->sc_state &= ~OBOE_RSLP; 341 break; 342 } 343 } 344 345 /* Do just one frame transfer per read */ 346 347 if (!error) { 348 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 349 if (uio->uio_resid < sc->sc_lens[slot]) { 350 DPRINTF(("oboe_read: uio buffer smaller than frame size" 351 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 352 error = EINVAL; 353 } else { 354 DPRINTF(("oboe_read: moving %d bytes from %p\n", 355 sc->sc_lens[slot], 356 sc->sc_recv_stores[slot])); 357 error = uiomove(sc->sc_recv_stores[slot], 358 sc->sc_lens[slot], uio); 359 } 360 } 361 sc->sc_saved--; 362 splx(s); 363 364 return (error); 365 } 366 367 static int 368 oboe_write(void *h, struct uio *uio, int flag) 369 { 370 struct oboe_softc *sc = h; 371 int error = 0; 372 int n; 373 int s = splir(); 374 375 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 376 while (sc->sc_txpending == TX_SLOTS) { 377 if (flag & IO_NDELAY) { 378 splx(s); 379 return (EWOULDBLOCK); 380 } 381 sc->sc_state |= OBOE_WSLP; 382 DPRINTF(("oboe_write: sleep\n")); 383 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 384 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 385 if (error) { 386 sc->sc_state &= ~OBOE_WSLP; 387 break; 388 } 389 } 390 if (error) 391 goto err; 392 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 393 DPRINTF(("oboe_write: slot overrun\n")); 394 } 395 396 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 397 sc->sc_ebofs); 398 if (n < 0) { 399 error = -n; 400 goto err; 401 } 402 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 403 404 OUTB(sc, 0, OBOE_RST); 405 OUTB(sc, 0x1e, OBOE_REG_11); 406 407 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 408 409 /* XXX Need delay here??? */ 410 delay(1000); 411 412 sc->sc_txpending++; 413 OUTB(sc, 0x80, OBOE_RST); 414 OUTB(sc, 1, OBOE_REG_9); 415 sc->sc_txs++; 416 sc->sc_txs %= TX_SLOTS; 417 418 err: 419 splx(s); 420 return (error); 421 } 422 423 static int 424 oboe_set_params(void *h, struct irda_params *p) 425 { 426 struct oboe_softc *sc = h; 427 int error; 428 429 if (p->speed > 0) { 430 error = oboe_setbaud(sc, p->speed); 431 if (error) 432 return (error); 433 } 434 sc->sc_ebofs = p->ebofs; 435 436 /* XXX ignore ebofs and maxsize for now */ 437 return (0); 438 } 439 440 static int 441 oboe_get_speeds(void *h, int *speeds) 442 { 443 struct oboe_softc *sc = h; 444 *speeds = sc->sc_speeds; 445 return (0); 446 } 447 448 static int 449 oboe_get_turnarounds(void *h, int *turnarounds) 450 { 451 #if 0 452 struct oboe_softc *sc = h; 453 #endif 454 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 455 /* XXX Linux driver sets all bits */ 456 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 457 return (0); 458 } 459 460 static int 461 oboe_poll(void *h, int events, struct proc *p) 462 { 463 struct oboe_softc *sc = h; 464 int revents = 0; 465 int s; 466 467 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 468 469 s = splir(); 470 if (events & (POLLOUT | POLLWRNORM)) 471 revents |= events & (POLLOUT | POLLWRNORM); 472 if (events & (POLLIN | POLLRDNORM)) { 473 if (sc->sc_saved > 0) { 474 DPRINTF(("%s: have data\n", __FUNCTION__)); 475 revents |= events & (POLLIN | POLLRDNORM); 476 } else { 477 DPRINTF(("%s: recording select\n", __FUNCTION__)); 478 selrecord(p, &sc->sc_rsel); 479 } 480 } 481 splx(s); 482 483 return (revents); 484 } 485 486 static void 487 filt_oboerdetach(struct knote *kn) 488 { 489 struct oboe_softc *sc = kn->kn_hook; 490 int s; 491 492 s = splir(); 493 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 494 splx(s); 495 } 496 497 static int 498 filt_oboeread(struct knote *kn, long hint) 499 { 500 struct oboe_softc *sc = kn->kn_hook; 501 502 kn->kn_data = sc->sc_saved; 503 return (kn->kn_data > 0); 504 } 505 506 static void 507 filt_oboewdetach(struct knote *kn) 508 { 509 struct oboe_softc *sc = kn->kn_hook; 510 int s; 511 512 s = splir(); 513 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 514 splx(s); 515 } 516 517 static const struct filterops oboeread_filtops = 518 { 1, NULL, filt_oboerdetach, filt_oboeread }; 519 static const struct filterops oboewrite_filtops = 520 { 1, NULL, filt_oboewdetach, filt_seltrue }; 521 522 static int 523 oboe_kqfilter(void *h, struct knote *kn) 524 { 525 struct oboe_softc *sc = h; 526 struct klist *klist; 527 int s; 528 529 switch (kn->kn_filter) { 530 case EVFILT_READ: 531 klist = &sc->sc_rsel.sel_klist; 532 kn->kn_fop = &oboeread_filtops; 533 break; 534 case EVFILT_WRITE: 535 klist = &sc->sc_wsel.sel_klist; 536 kn->kn_fop = &oboewrite_filtops; 537 break; 538 default: 539 return (1); 540 } 541 542 kn->kn_hook = sc; 543 544 s = splir(); 545 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 546 splx(s); 547 548 return (0); 549 } 550 551 static int 552 oboe_reset(struct oboe_softc *sc) 553 { 554 #if 0 555 OUTB(sc, 0x00, OBOE_RST); 556 OUTB(sc, 0x80, OBOE_RST); 557 #endif 558 return 0; 559 } 560 561 static int 562 oboe_intr(void *p) 563 { 564 struct oboe_softc *sc = p; 565 uint8_t irqstat = INB(sc, OBOE_ISR); 566 567 if (!(irqstat & 0xf8)) 568 return (0); /* Not for me? */ 569 570 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 571 572 OUTB(sc, irqstat, OBOE_ISR); 573 574 if (irqstat & OBOE_ISR_RXDONE) { 575 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 576 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 577 if (sc->sc_saved == RX_SLOTS) { 578 DPRINTF(("oboe_intr: all buffers filled\n")); 579 return 0; 580 } 581 582 if (len > 2) 583 len -= 2; /* JSP: skip check sum? */ 584 585 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 586 sc->sc_recv_stores[sc->sc_rxs])); 587 memcpy(sc->sc_recv_stores[sc->sc_rxs], 588 sc->sc_recv_bufs[sc->sc_rxs], 589 len); 590 sc->sc_lens[sc->sc_rxs] = len; 591 sc->sc_saved++; 592 #if 0 593 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 594 len, &sc->sc_q); 595 #endif 596 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 597 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 598 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 599 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 600 } 601 DPRINTF(("oboe_intr no more frames available\n")); 602 if (sc->sc_state & OBOE_RSLP) { 603 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 604 sc->sc_state &= ~OBOE_RSLP; 605 DPRINTF(("oboe_intr: waking up reader\n")); 606 wakeup(&sc->sc_rxs); 607 } 608 selnotify(&sc->sc_rsel, 0); 609 DPRINTF(("oboe_intr returning\n")); 610 } 611 if (irqstat & OBOE_ISR_TXDONE) { 612 DPRINTF(("oboe_intr: write done\n")); 613 sc->sc_txpending--; 614 sc->sc_txpackets++; 615 616 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 617 wakeup(&sc->sc_state); 618 return 1; 619 } 620 621 if (sc->sc_state & OBOE_WSLP) { 622 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 623 sc->sc_state &= ~OBOE_WSLP; 624 DPRINTF(("oboe_intr: waking up writer\n")); 625 wakeup(&sc->sc_txs); 626 } 627 selnotify(&sc->sc_wsel, 0); 628 } 629 return (1); 630 } 631 632 /* XXX vtophys must go! */ 633 static void 634 oboe_init_taskfile(struct oboe_softc *sc) 635 { 636 int i; 637 int s = splir(); 638 639 for (i = 0; i < TX_SLOTS; ++i) { 640 sc->sc_taskfile->xmit[i].len = 0; 641 sc->sc_taskfile->xmit[i].control = 0x00; 642 sc->sc_taskfile->xmit[i].buffer = 643 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 644 } 645 646 for (i = 0; i < RX_SLOTS; ++i) { 647 sc->sc_taskfile->recv[i].len = 0; 648 sc->sc_taskfile->recv[i].control = 0x83; 649 sc->sc_taskfile->recv[i].buffer = 650 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 651 } 652 653 sc->sc_txpending = 0; 654 655 splx(s); 656 } 657 658 static int 659 oboe_alloc_taskfile(struct oboe_softc *sc) 660 { 661 int i; 662 /* XXX */ 663 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 664 if (addr == 0) { 665 goto bad; 666 } 667 addr &= ~(sizeof (struct OboeTaskFile) - 1); 668 addr += sizeof (struct OboeTaskFile); 669 sc->sc_taskfile = (struct OboeTaskFile *) addr; 670 671 for (i = 0; i < TX_SLOTS; ++i) { 672 sc->sc_xmit_bufs[i] = 673 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 674 sc->sc_xmit_stores[i] = 675 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 676 if (sc->sc_xmit_bufs[i] == NULL || 677 sc->sc_xmit_stores[i] == NULL) { 678 goto bad; 679 } 680 } 681 for (i = 0; i < RX_SLOTS; ++i) { 682 sc->sc_recv_bufs[i] = 683 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 684 sc->sc_recv_stores[i] = 685 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 686 if (sc->sc_recv_bufs[i] == NULL || 687 sc->sc_recv_stores[i] == NULL) { 688 goto bad; 689 } 690 } 691 692 return 0; 693 bad: 694 printf("oboe: malloc for buffers failed()\n"); 695 return 1; 696 } 697 698 static void 699 oboe_startchip (struct oboe_softc *sc) 700 { 701 uint32_t physaddr; 702 703 OUTB(sc, 0, OBOE_LOCK); 704 OUTB(sc, 0, OBOE_RST); 705 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 706 OUTB(sc, 0xf0, OBOE_REG_D); 707 OUTB(sc, 0xff, OBOE_ISR); 708 OUTB(sc, 0x0f, OBOE_REG_1A); 709 OUTB(sc, 0xff, OBOE_REG_1B); 710 711 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 712 713 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 714 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 715 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 716 717 OUTB(sc, 0x0e, OBOE_REG_11); 718 OUTB(sc, 0x80, OBOE_RST); 719 720 (void)oboe_setbaud(sc, 9600); 721 722 sc->sc_rxs = INB(sc, OBOE_RCVT); 723 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 724 sc->sc_rxs = 0; 725 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 726 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 727 sc->sc_txs = 0; 728 } 729 730 static void 731 oboe_stopchip (struct oboe_softc *sc) 732 { 733 OUTB(sc, 0x0e, OBOE_REG_11); 734 OUTB(sc, 0x00, OBOE_RST); 735 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 736 OUTB(sc, 0xff, OBOE_TFP1); 737 OUTB(sc, 0xff, OBOE_TFP0); 738 OUTB(sc, 0x0f, OBOE_REG_1B); 739 OUTB(sc, 0xff, OBOE_REG_1A); 740 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 741 OUTB(sc, 0x80, OBOE_RST); 742 OUTB(sc, 0x0e, OBOE_LOCK); 743 } 744 745 #define SPEEDCASE(speed, type, divisor) \ 746 case speed: \ 747 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 748 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 749 OUTB(sc, divisor, OBOE_UDIV); \ 750 break 751 752 static int 753 oboe_setbaud(struct oboe_softc *sc, int baud) 754 { 755 int s; 756 757 DPRINTF(("oboe: setting baud to %d\n", baud)); 758 759 s = splir(); 760 761 switch (baud) { 762 SPEEDCASE( 2400, SIR, 0xbf); 763 SPEEDCASE( 9600, SIR, 0x2f); 764 SPEEDCASE( 19200, SIR, 0x17); 765 SPEEDCASE( 38400, SIR, 0x0b); 766 SPEEDCASE( 57600, SIR, 0x07); 767 SPEEDCASE( 115200, SIR, 0x03); 768 SPEEDCASE(1152000, MIR, 0x01); 769 SPEEDCASE(4000000, FIR, 0x00); 770 default: 771 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 772 splx(s); 773 return (EINVAL); 774 } 775 776 OUTB(sc, 0x00, OBOE_RST); 777 OUTB(sc, 0x80, OBOE_RST); 778 OUTB(sc, 0x01, OBOE_REG_9); 779 780 sc->sc_speed = baud; 781 782 splx(s); 783 784 return (0); 785 } 786
Indexes created Tue Sep 30 11:09:46 GMT 2025