oboe.c revision 1.24
1 /* $NetBSD: oboe.c,v 1.24 2006/11/16 01:33:09 christos 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 1.24 2006/11/16 01:33:09 christos 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 lwp *l); 79 static int oboe_close(void *h, int flag, int mode, struct lwp *l); 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 lwp *l); 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, 171 void *aux) 172 { 173 struct pci_attach_args *pa = aux; 174 175 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TOSHIBA2 && 176 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_OBOE || 177 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TOSHIBA2_DONAUOBOE)) 178 return (1); 179 return 0; 180 } 181 182 static void 183 oboe_attach(struct device *parent, struct device *self, void *aux) 184 { 185 struct oboe_softc *sc = (struct oboe_softc *)self; 186 struct pci_attach_args *pa = aux; 187 pci_intr_handle_t ih; 188 struct ir_attach_args ia; 189 const char *intrstring; 190 191 sc->sc_revision = PCI_REVISION(pa->pa_class); 192 printf(": Toshiba Fast Infrared Type O, revision %d\n", 193 sc->sc_revision); 194 195 /* Map I/O registers. */ 196 if (pci_mapreg_map(pa, IO_BAR, PCI_MAPREG_TYPE_IO, 0, 197 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 198 printf("%s: can't map I/O space\n", sc->sc_dev.dv_xname); 199 return; 200 } 201 202 sc->sc_dmatag = pa->pa_dmat; 203 204 ia.ia_type = IR_TYPE_IRFRAME; 205 ia.ia_methods = &oboe_methods; 206 ia.ia_handle = sc; 207 208 sc->sc_state = 0; 209 sc->sc_speed = IRDA_SPEED_9600; 210 211 /* Enable the device */ 212 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 213 pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 214 PCI_COMMAND_MASTER_ENABLE); 215 216 /* Reset the device; bail out upon failure. */ 217 if (oboe_reset(sc) != 0) { 218 printf("%s: can't reset\n", sc->sc_dev.dv_xname); 219 return; 220 } 221 /* Map and establish the interrupt. */ 222 if (pci_intr_map(pa, &ih)) { 223 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 224 return; 225 } 226 intrstring = pci_intr_string(pa->pa_pc, ih); 227 sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_IR, oboe_intr, sc); 228 if (sc->sc_ih == NULL) { 229 printf("%s: couldn't establish interrupt", 230 sc->sc_dev.dv_xname); 231 if (intrstring != NULL) 232 printf(" at %s", intrstring); 233 printf("\n"); 234 return; 235 } 236 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstring); 237 238 sc->sc_txs = 0; 239 sc->sc_rxs = 0; 240 241 sc->sc_speeds = 242 IRDA_SPEED_2400 | IRDA_SPEED_9600 | IRDA_SPEED_19200 | 243 IRDA_SPEED_38400 | IRDA_SPEED_57600 | IRDA_SPEED_115200 | 244 IRDA_SPEED_576000 | IRDA_SPEED_1152000 | IRDA_SPEED_4000000; 245 246 oboe_alloc_taskfile(sc); 247 248 sc->sc_child = config_found((void *)sc, &ia, ir_print); 249 } 250 251 static int 252 oboe_activate(struct device *self, enum devact act) 253 { 254 struct oboe_softc *sc = (struct oboe_softc *)self; 255 int error = 0; 256 257 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 258 259 switch (act) { 260 case DVACT_ACTIVATE: 261 return (EOPNOTSUPP); 262 break; 263 264 case DVACT_DEACTIVATE: 265 if (sc->sc_child != NULL) 266 error = config_deactivate(sc->sc_child); 267 break; 268 } 269 return (error); 270 } 271 272 static int 273 oboe_detach(struct device *self, int flags) 274 { 275 #ifdef OBOE_DEBUG 276 struct oboe_softc *sc = (struct oboe_softc *)self; 277 278 /* XXX needs reference counting for proper detach. */ 279 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 280 #endif 281 return (0); 282 } 283 284 static int 285 oboe_open(void *h, int flag, int mode, struct lwp *l) 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 static int 300 oboe_close(void *h, int flag, int mode, 301 struct lwp *l) 302 { 303 struct oboe_softc *sc = h; 304 int error = 0; 305 int s = splir(); 306 307 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 308 /* Wait for output to drain */ 309 310 if (sc->sc_txpending > 0) { 311 sc->sc_state |= OBOE_CLOSING; 312 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 313 } 314 splx(s); 315 316 oboe_stopchip(sc); 317 return (error); 318 } 319 320 static int 321 oboe_read(void *h, struct uio *uio, int flag) 322 { 323 struct oboe_softc *sc = h; 324 int error = 0; 325 int s; 326 int slot; 327 328 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 329 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 330 (long)uio->uio_offset)); 331 332 s = splir(); 333 while (sc->sc_saved == 0) { 334 if (flag & IO_NDELAY) { 335 splx(s); 336 return (EWOULDBLOCK); 337 } 338 sc->sc_state |= OBOE_RSLP; 339 DPRINTF(("oboe_read: sleep\n")); 340 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 341 DPRINTF(("oboe_read: woke, error=%d\n", error)); 342 if (error) { 343 sc->sc_state &= ~OBOE_RSLP; 344 break; 345 } 346 } 347 348 /* Do just one frame transfer per read */ 349 350 if (!error) { 351 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 352 if (uio->uio_resid < sc->sc_lens[slot]) { 353 DPRINTF(("oboe_read: uio buffer smaller than frame size" 354 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 355 error = EINVAL; 356 } else { 357 DPRINTF(("oboe_read: moving %d bytes from %p\n", 358 sc->sc_lens[slot], 359 sc->sc_recv_stores[slot])); 360 error = uiomove(sc->sc_recv_stores[slot], 361 sc->sc_lens[slot], uio); 362 } 363 } 364 sc->sc_saved--; 365 splx(s); 366 367 return (error); 368 } 369 370 static int 371 oboe_write(void *h, struct uio *uio, int flag) 372 { 373 struct oboe_softc *sc = h; 374 int error = 0; 375 int n; 376 int s = splir(); 377 378 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 379 while (sc->sc_txpending == TX_SLOTS) { 380 if (flag & IO_NDELAY) { 381 splx(s); 382 return (EWOULDBLOCK); 383 } 384 sc->sc_state |= OBOE_WSLP; 385 DPRINTF(("oboe_write: sleep\n")); 386 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 387 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 388 if (error) { 389 sc->sc_state &= ~OBOE_WSLP; 390 break; 391 } 392 } 393 if (error) 394 goto err; 395 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 396 DPRINTF(("oboe_write: slot overrun\n")); 397 } 398 399 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 400 sc->sc_ebofs); 401 if (n < 0) { 402 error = -n; 403 goto err; 404 } 405 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 406 407 OUTB(sc, 0, OBOE_RST); 408 OUTB(sc, 0x1e, OBOE_REG_11); 409 410 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 411 412 /* XXX Need delay here??? */ 413 delay(1000); 414 415 sc->sc_txpending++; 416 OUTB(sc, 0x80, OBOE_RST); 417 OUTB(sc, 1, OBOE_REG_9); 418 sc->sc_txs++; 419 sc->sc_txs %= TX_SLOTS; 420 421 err: 422 splx(s); 423 return (error); 424 } 425 426 static int 427 oboe_set_params(void *h, struct irda_params *p) 428 { 429 struct oboe_softc *sc = h; 430 int error; 431 432 if (p->speed > 0) { 433 error = oboe_setbaud(sc, p->speed); 434 if (error) 435 return (error); 436 } 437 sc->sc_ebofs = p->ebofs; 438 439 /* XXX ignore ebofs and maxsize for now */ 440 return (0); 441 } 442 443 static int 444 oboe_get_speeds(void *h, int *speeds) 445 { 446 struct oboe_softc *sc = h; 447 *speeds = sc->sc_speeds; 448 return (0); 449 } 450 451 static int 452 oboe_get_turnarounds(void *h, int *turnarounds) 453 { 454 #ifdef OBOE_DEBUG 455 struct oboe_softc *sc = h; 456 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 457 #endif 458 459 /* XXX Linux driver sets all bits */ 460 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 461 462 return (0); 463 } 464 465 static int 466 oboe_poll(void *h, int events, struct lwp *l) 467 { 468 struct oboe_softc *sc = h; 469 int revents = 0; 470 int s; 471 472 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 473 474 s = splir(); 475 if (events & (POLLOUT | POLLWRNORM)) 476 revents |= events & (POLLOUT | POLLWRNORM); 477 if (events & (POLLIN | POLLRDNORM)) { 478 if (sc->sc_saved > 0) { 479 DPRINTF(("%s: have data\n", __FUNCTION__)); 480 revents |= events & (POLLIN | POLLRDNORM); 481 } else { 482 DPRINTF(("%s: recording select\n", __FUNCTION__)); 483 selrecord(l, &sc->sc_rsel); 484 } 485 } 486 splx(s); 487 488 return (revents); 489 } 490 491 static void 492 filt_oboerdetach(struct knote *kn) 493 { 494 struct oboe_softc *sc = kn->kn_hook; 495 int s; 496 497 s = splir(); 498 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 499 splx(s); 500 } 501 502 static int 503 filt_oboeread(struct knote *kn, long hint) 504 { 505 struct oboe_softc *sc = kn->kn_hook; 506 507 kn->kn_data = sc->sc_saved; 508 return (kn->kn_data > 0); 509 } 510 511 static void 512 filt_oboewdetach(struct knote *kn) 513 { 514 struct oboe_softc *sc = kn->kn_hook; 515 int s; 516 517 s = splir(); 518 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 519 splx(s); 520 } 521 522 static const struct filterops oboeread_filtops = 523 { 1, NULL, filt_oboerdetach, filt_oboeread }; 524 static const struct filterops oboewrite_filtops = 525 { 1, NULL, filt_oboewdetach, filt_seltrue }; 526 527 static int 528 oboe_kqfilter(void *h, struct knote *kn) 529 { 530 struct oboe_softc *sc = h; 531 struct klist *klist; 532 int s; 533 534 switch (kn->kn_filter) { 535 case EVFILT_READ: 536 klist = &sc->sc_rsel.sel_klist; 537 kn->kn_fop = &oboeread_filtops; 538 break; 539 case EVFILT_WRITE: 540 klist = &sc->sc_wsel.sel_klist; 541 kn->kn_fop = &oboewrite_filtops; 542 break; 543 default: 544 return (1); 545 } 546 547 kn->kn_hook = sc; 548 549 s = splir(); 550 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 551 splx(s); 552 553 return (0); 554 } 555 556 static int 557 oboe_reset(struct oboe_softc *sc) 558 { 559 #if 0 560 OUTB(sc, 0x00, OBOE_RST); 561 OUTB(sc, 0x80, OBOE_RST); 562 #endif 563 return 0; 564 } 565 566 static int 567 oboe_intr(void *p) 568 { 569 struct oboe_softc *sc = p; 570 uint8_t irqstat = INB(sc, OBOE_ISR); 571 572 if (!(irqstat & 0xf8)) 573 return (0); /* Not for me? */ 574 575 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 576 577 OUTB(sc, irqstat, OBOE_ISR); 578 579 if (irqstat & OBOE_ISR_RXDONE) { 580 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 581 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 582 if (sc->sc_saved == RX_SLOTS) { 583 DPRINTF(("oboe_intr: all buffers filled\n")); 584 return 0; 585 } 586 587 if (len > 2) 588 len -= 2; /* JSP: skip check sum? */ 589 590 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 591 sc->sc_recv_stores[sc->sc_rxs])); 592 memcpy(sc->sc_recv_stores[sc->sc_rxs], 593 sc->sc_recv_bufs[sc->sc_rxs], 594 len); 595 sc->sc_lens[sc->sc_rxs] = len; 596 sc->sc_saved++; 597 #if 0 598 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 599 len, &sc->sc_q); 600 #endif 601 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 602 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 603 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 604 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 605 } 606 DPRINTF(("oboe_intr no more frames available\n")); 607 if (sc->sc_state & OBOE_RSLP) { 608 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 609 sc->sc_state &= ~OBOE_RSLP; 610 DPRINTF(("oboe_intr: waking up reader\n")); 611 wakeup(&sc->sc_rxs); 612 } 613 selnotify(&sc->sc_rsel, 0); 614 DPRINTF(("oboe_intr returning\n")); 615 } 616 if (irqstat & OBOE_ISR_TXDONE) { 617 DPRINTF(("oboe_intr: write done\n")); 618 sc->sc_txpending--; 619 sc->sc_txpackets++; 620 621 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 622 wakeup(&sc->sc_state); 623 return 1; 624 } 625 626 if (sc->sc_state & OBOE_WSLP) { 627 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 628 sc->sc_state &= ~OBOE_WSLP; 629 DPRINTF(("oboe_intr: waking up writer\n")); 630 wakeup(&sc->sc_txs); 631 } 632 selnotify(&sc->sc_wsel, 0); 633 } 634 return (1); 635 } 636 637 /* XXX vtophys must go! */ 638 static void 639 oboe_init_taskfile(struct oboe_softc *sc) 640 { 641 int i; 642 int s = splir(); 643 644 for (i = 0; i < TX_SLOTS; ++i) { 645 sc->sc_taskfile->xmit[i].len = 0; 646 sc->sc_taskfile->xmit[i].control = 0x00; 647 sc->sc_taskfile->xmit[i].buffer = 648 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 649 } 650 651 for (i = 0; i < RX_SLOTS; ++i) { 652 sc->sc_taskfile->recv[i].len = 0; 653 sc->sc_taskfile->recv[i].control = 0x83; 654 sc->sc_taskfile->recv[i].buffer = 655 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 656 } 657 658 sc->sc_txpending = 0; 659 660 splx(s); 661 } 662 663 static int 664 oboe_alloc_taskfile(struct oboe_softc *sc) 665 { 666 int i; 667 /* XXX */ 668 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 669 if (addr == 0) { 670 goto bad; 671 } 672 addr &= ~(sizeof (struct OboeTaskFile) - 1); 673 addr += sizeof (struct OboeTaskFile); 674 sc->sc_taskfile = (struct OboeTaskFile *) addr; 675 676 for (i = 0; i < TX_SLOTS; ++i) { 677 sc->sc_xmit_bufs[i] = 678 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 679 sc->sc_xmit_stores[i] = 680 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 681 if (sc->sc_xmit_bufs[i] == NULL || 682 sc->sc_xmit_stores[i] == NULL) { 683 goto bad; 684 } 685 } 686 for (i = 0; i < RX_SLOTS; ++i) { 687 sc->sc_recv_bufs[i] = 688 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 689 sc->sc_recv_stores[i] = 690 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 691 if (sc->sc_recv_bufs[i] == NULL || 692 sc->sc_recv_stores[i] == NULL) { 693 goto bad; 694 } 695 } 696 697 return 0; 698 bad: 699 printf("oboe: malloc for buffers failed()\n"); 700 return 1; 701 } 702 703 static void 704 oboe_startchip (struct oboe_softc *sc) 705 { 706 uint32_t physaddr; 707 708 OUTB(sc, 0, OBOE_LOCK); 709 OUTB(sc, 0, OBOE_RST); 710 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 711 OUTB(sc, 0xf0, OBOE_REG_D); 712 OUTB(sc, 0xff, OBOE_ISR); 713 OUTB(sc, 0x0f, OBOE_REG_1A); 714 OUTB(sc, 0xff, OBOE_REG_1B); 715 716 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 717 718 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 719 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 720 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 721 722 OUTB(sc, 0x0e, OBOE_REG_11); 723 OUTB(sc, 0x80, OBOE_RST); 724 725 (void)oboe_setbaud(sc, 9600); 726 727 sc->sc_rxs = INB(sc, OBOE_RCVT); 728 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 729 sc->sc_rxs = 0; 730 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 731 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 732 sc->sc_txs = 0; 733 } 734 735 static void 736 oboe_stopchip (struct oboe_softc *sc) 737 { 738 OUTB(sc, 0x0e, OBOE_REG_11); 739 OUTB(sc, 0x00, OBOE_RST); 740 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 741 OUTB(sc, 0xff, OBOE_TFP1); 742 OUTB(sc, 0xff, OBOE_TFP0); 743 OUTB(sc, 0x0f, OBOE_REG_1B); 744 OUTB(sc, 0xff, OBOE_REG_1A); 745 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 746 OUTB(sc, 0x80, OBOE_RST); 747 OUTB(sc, 0x0e, OBOE_LOCK); 748 } 749 750 #define SPEEDCASE(speed, type, divisor) \ 751 case speed: \ 752 OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 753 OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 754 OUTB(sc, divisor, OBOE_UDIV); \ 755 break 756 757 static int 758 oboe_setbaud(struct oboe_softc *sc, int baud) 759 { 760 int s; 761 762 DPRINTF(("oboe: setting baud to %d\n", baud)); 763 764 s = splir(); 765 766 switch (baud) { 767 SPEEDCASE( 2400, SIR, 0xbf); 768 SPEEDCASE( 9600, SIR, 0x2f); 769 SPEEDCASE( 19200, SIR, 0x17); 770 SPEEDCASE( 38400, SIR, 0x0b); 771 SPEEDCASE( 57600, SIR, 0x07); 772 SPEEDCASE( 115200, SIR, 0x03); 773 SPEEDCASE(1152000, MIR, 0x01); 774 SPEEDCASE(4000000, FIR, 0x00); 775 default: 776 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 777 splx(s); 778 return (EINVAL); 779 } 780 781 OUTB(sc, 0x00, OBOE_RST); 782 OUTB(sc, 0x80, OBOE_RST); 783 OUTB(sc, 0x01, OBOE_REG_9); 784 785 sc->sc_speed = baud; 786 787 splx(s); 788 789 return (0); 790 } 791
Indexes created Tue Sep 30 20:09:53 GMT 2025