oboe.c revision 1.22
1/* $NetBSD: oboe.c,v 1.22 2006/08/17 22:14:38 he 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 1.22 2006/08/17 22:14:38 he 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 73static int oboe_match(struct device *parent, struct cfdata *match, void *aux); 74static void oboe_attach(struct device *parent, struct device *self, void *aux); 75static int oboe_activate(struct device *self, enum devact act); 76static int oboe_detach(struct device *self, int flags); 77 78static int oboe_open(void *h, int flag, int mode, struct lwp *l); 79static int oboe_close(void *h, int flag, int mode, struct lwp *l); 80static int oboe_read(void *h, struct uio *uio, int flag); 81static int oboe_write(void *h, struct uio *uio, int flag); 82static int oboe_set_params(void *h, struct irda_params *params); 83static int oboe_get_speeds(void *h, int *speeds); 84static int oboe_get_turnarounds(void *h, int *times); 85static int oboe_poll(void *h, int events, struct lwp *l); 86static int oboe_kqfilter(void *h, struct knote *kn); 87 88#ifdef OBOE_DEBUG 89#define DPRINTF(x) if (oboedebug) printf x 90int oboedebug = 1; 91#else 92#define DPRINTF(x) 93#endif 94 95struct oboe_dma; 96 97struct 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 140static int oboe_intr(void *handle); 141static int oboe_reset(struct oboe_softc *); 142 143struct 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 155static int oboe_alloc_taskfile(struct oboe_softc *); 156static void oboe_init_taskfile(struct oboe_softc *); 157static void oboe_startchip(struct oboe_softc *); 158static void oboe_stopchip(struct oboe_softc *); 159static int oboe_setbaud(struct oboe_softc *, int); 160 161CFATTACH_DECL(oboe, sizeof(struct oboe_softc), 162 oboe_match, oboe_attach, oboe_detach, oboe_activate); 163 164static 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 169static int 170oboe_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 181static void 182oboe_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 250static int 251oboe_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 271static int 272oboe_detach(struct device *self, int flags) 273{ 274#ifdef OBOE_DEBUG 275 struct oboe_softc *sc = (struct oboe_softc *)self; 276 277 /* XXX needs reference counting for proper detach. */ 278 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 279#endif 280 return (0); 281} 282 283static int 284oboe_open(void *h, int flag, int mode, struct lwp *l) 285{ 286 struct oboe_softc *sc = h; 287 288 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 289 290 sc->sc_state = 0; 291 sc->sc_saved = 0; 292 oboe_init_taskfile(sc); 293 oboe_startchip(sc); 294 295 return (0); 296} 297 298static int 299oboe_close(void *h, int flag, int mode, struct lwp *l) 300{ 301 struct oboe_softc *sc = h; 302 int error = 0; 303 int s = splir(); 304 305 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 306 /* Wait for output to drain */ 307 308 if (sc->sc_txpending > 0) { 309 sc->sc_state |= OBOE_CLOSING; 310 error = tsleep(&sc->sc_state, PZERO | PCATCH, "oboecl", hz/10); 311 } 312 splx(s); 313 314 oboe_stopchip(sc); 315 return (error); 316} 317 318static int 319oboe_read(void *h, struct uio *uio, int flag) 320{ 321 struct oboe_softc *sc = h; 322 int error = 0; 323 int s; 324 int slot; 325 326 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 327 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 328 (long)uio->uio_offset)); 329 330 s = splir(); 331 while (sc->sc_saved == 0) { 332 if (flag & IO_NDELAY) { 333 splx(s); 334 return (EWOULDBLOCK); 335 } 336 sc->sc_state |= OBOE_RSLP; 337 DPRINTF(("oboe_read: sleep\n")); 338 error = tsleep(&sc->sc_rxs, PZERO | PCATCH, "oboerd", 0); 339 DPRINTF(("oboe_read: woke, error=%d\n", error)); 340 if (error) { 341 sc->sc_state &= ~OBOE_RSLP; 342 break; 343 } 344 } 345 346 /* Do just one frame transfer per read */ 347 348 if (!error) { 349 slot = (sc->sc_rxs - sc->sc_saved + RX_SLOTS) % RX_SLOTS; 350 if (uio->uio_resid < sc->sc_lens[slot]) { 351 DPRINTF(("oboe_read: uio buffer smaller than frame size" 352 "(%d < %d)\n", uio->uio_resid, sc->sc_lens[slot])); 353 error = EINVAL; 354 } else { 355 DPRINTF(("oboe_read: moving %d bytes from %p\n", 356 sc->sc_lens[slot], 357 sc->sc_recv_stores[slot])); 358 error = uiomove(sc->sc_recv_stores[slot], 359 sc->sc_lens[slot], uio); 360 } 361 } 362 sc->sc_saved--; 363 splx(s); 364 365 return (error); 366} 367 368static int 369oboe_write(void *h, struct uio *uio, int flag) 370{ 371 struct oboe_softc *sc = h; 372 int error = 0; 373 int n; 374 int s = splir(); 375 376 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 377 while (sc->sc_txpending == TX_SLOTS) { 378 if (flag & IO_NDELAY) { 379 splx(s); 380 return (EWOULDBLOCK); 381 } 382 sc->sc_state |= OBOE_WSLP; 383 DPRINTF(("oboe_write: sleep\n")); 384 error = tsleep(&sc->sc_txs, PZERO | PCATCH, "oboewr", 0); 385 DPRINTF(("oboe_write: woke up, error=%d\n", error)); 386 if (error) { 387 sc->sc_state &= ~OBOE_WSLP; 388 break; 389 } 390 } 391 if (error) 392 goto err; 393 if (sc->sc_taskfile->xmit[sc->sc_txs].control) { 394 DPRINTF(("oboe_write: slot overrun\n")); 395 } 396 397 n = irda_sir_frame(sc->sc_xmit_bufs[sc->sc_txs], TX_BUF_SZ, uio, 398 sc->sc_ebofs); 399 if (n < 0) { 400 error = -n; 401 goto err; 402 } 403 sc->sc_taskfile->xmit[sc->sc_txs].len = n; 404 405 OUTB(sc, 0, OBOE_RST); 406 OUTB(sc, 0x1e, OBOE_REG_11); 407 408 sc->sc_taskfile->xmit[sc->sc_txs].control = 0x84; 409 410 /* XXX Need delay here??? */ 411 delay(1000); 412 413 sc->sc_txpending++; 414 OUTB(sc, 0x80, OBOE_RST); 415 OUTB(sc, 1, OBOE_REG_9); 416 sc->sc_txs++; 417 sc->sc_txs %= TX_SLOTS; 418 419 err: 420 splx(s); 421 return (error); 422} 423 424static int 425oboe_set_params(void *h, struct irda_params *p) 426{ 427 struct oboe_softc *sc = h; 428 int error; 429 430 if (p->speed > 0) { 431 error = oboe_setbaud(sc, p->speed); 432 if (error) 433 return (error); 434 } 435 sc->sc_ebofs = p->ebofs; 436 437 /* XXX ignore ebofs and maxsize for now */ 438 return (0); 439} 440 441static int 442oboe_get_speeds(void *h, int *speeds) 443{ 444 struct oboe_softc *sc = h; 445 *speeds = sc->sc_speeds; 446 return (0); 447} 448 449static int 450oboe_get_turnarounds(void *h, int *turnarounds) 451{ 452#ifdef OBOE_DEBUG 453 struct oboe_softc *sc = h; 454 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 455#endif 456 457 /* XXX Linux driver sets all bits */ 458 *turnarounds = IRDA_TURNT_10000; /* 10ms */ 459 460 return (0); 461} 462 463static int 464oboe_poll(void *h, int events, struct lwp *l) 465{ 466 struct oboe_softc *sc = h; 467 int revents = 0; 468 int s; 469 470 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 471 472 s = splir(); 473 if (events & (POLLOUT | POLLWRNORM)) 474 revents |= events & (POLLOUT | POLLWRNORM); 475 if (events & (POLLIN | POLLRDNORM)) { 476 if (sc->sc_saved > 0) { 477 DPRINTF(("%s: have data\n", __FUNCTION__)); 478 revents |= events & (POLLIN | POLLRDNORM); 479 } else { 480 DPRINTF(("%s: recording select\n", __FUNCTION__)); 481 selrecord(l, &sc->sc_rsel); 482 } 483 } 484 splx(s); 485 486 return (revents); 487} 488 489static void 490filt_oboerdetach(struct knote *kn) 491{ 492 struct oboe_softc *sc = kn->kn_hook; 493 int s; 494 495 s = splir(); 496 SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); 497 splx(s); 498} 499 500static int 501filt_oboeread(struct knote *kn, long hint) 502{ 503 struct oboe_softc *sc = kn->kn_hook; 504 505 kn->kn_data = sc->sc_saved; 506 return (kn->kn_data > 0); 507} 508 509static void 510filt_oboewdetach(struct knote *kn) 511{ 512 struct oboe_softc *sc = kn->kn_hook; 513 int s; 514 515 s = splir(); 516 SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); 517 splx(s); 518} 519 520static const struct filterops oboeread_filtops = 521 { 1, NULL, filt_oboerdetach, filt_oboeread }; 522static const struct filterops oboewrite_filtops = 523 { 1, NULL, filt_oboewdetach, filt_seltrue }; 524 525static int 526oboe_kqfilter(void *h, struct knote *kn) 527{ 528 struct oboe_softc *sc = h; 529 struct klist *klist; 530 int s; 531 532 switch (kn->kn_filter) { 533 case EVFILT_READ: 534 klist = &sc->sc_rsel.sel_klist; 535 kn->kn_fop = &oboeread_filtops; 536 break; 537 case EVFILT_WRITE: 538 klist = &sc->sc_wsel.sel_klist; 539 kn->kn_fop = &oboewrite_filtops; 540 break; 541 default: 542 return (1); 543 } 544 545 kn->kn_hook = sc; 546 547 s = splir(); 548 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 549 splx(s); 550 551 return (0); 552} 553 554static int 555oboe_reset(struct oboe_softc *sc) 556{ 557#if 0 558 OUTB(sc, 0x00, OBOE_RST); 559 OUTB(sc, 0x80, OBOE_RST); 560#endif 561 return 0; 562} 563 564static int 565oboe_intr(void *p) 566{ 567 struct oboe_softc *sc = p; 568 uint8_t irqstat = INB(sc, OBOE_ISR); 569 570 if (!(irqstat & 0xf8)) 571 return (0); /* Not for me? */ 572 573 DPRINTF(("oboe_intr stat=0x%x\n", irqstat)); 574 575 OUTB(sc, irqstat, OBOE_ISR); 576 577 if (irqstat & OBOE_ISR_RXDONE) { 578 while (sc->sc_taskfile->recv[sc->sc_rxs].control == 0) { 579 int len = sc->sc_taskfile->recv[sc->sc_rxs].len; 580 if (sc->sc_saved == RX_SLOTS) { 581 DPRINTF(("oboe_intr: all buffers filled\n")); 582 return 0; 583 } 584 585 if (len > 2) 586 len -= 2; /* JSP: skip check sum? */ 587 588 DPRINTF(("oboe_intr: moving %d bytes to %p\n", len, 589 sc->sc_recv_stores[sc->sc_rxs])); 590 memcpy(sc->sc_recv_stores[sc->sc_rxs], 591 sc->sc_recv_bufs[sc->sc_rxs], 592 len); 593 sc->sc_lens[sc->sc_rxs] = len; 594 sc->sc_saved++; 595#if 0 596 (void)b_to_q(sc->sc_recv_bufs[sc->sc_rxs], 597 len, &sc->sc_q); 598#endif 599 sc->sc_taskfile->recv[sc->sc_rxs].control = 0x83; 600 sc->sc_taskfile->recv[sc->sc_rxs].len = 0x0; 601 sc->sc_rxs = (sc->sc_rxs + 1) % RX_SLOTS; 602 DPRINTF(("oboe_intr new rxs=%d\n", sc->sc_rxs)); 603 } 604 DPRINTF(("oboe_intr no more frames available\n")); 605 if (sc->sc_state & OBOE_RSLP) { 606 DPRINTF(("oboe_intr changing state to ~OBOE_RSLP\n")); 607 sc->sc_state &= ~OBOE_RSLP; 608 DPRINTF(("oboe_intr: waking up reader\n")); 609 wakeup(&sc->sc_rxs); 610 } 611 selnotify(&sc->sc_rsel, 0); 612 DPRINTF(("oboe_intr returning\n")); 613 } 614 if (irqstat & OBOE_ISR_TXDONE) { 615 DPRINTF(("oboe_intr: write done\n")); 616 sc->sc_txpending--; 617 sc->sc_txpackets++; 618 619 if ((sc->sc_state & OBOE_CLOSING) && sc->sc_txpending == 0) { 620 wakeup(&sc->sc_state); 621 return 1; 622 } 623 624 if (sc->sc_state & OBOE_WSLP) { 625 DPRINTF(("oboe_intr changing state to ~OBOE_WSLP\n")); 626 sc->sc_state &= ~OBOE_WSLP; 627 DPRINTF(("oboe_intr: waking up writer\n")); 628 wakeup(&sc->sc_txs); 629 } 630 selnotify(&sc->sc_wsel, 0); 631 } 632 return (1); 633} 634 635/* XXX vtophys must go! */ 636static void 637oboe_init_taskfile(struct oboe_softc *sc) 638{ 639 int i; 640 int s = splir(); 641 642 for (i = 0; i < TX_SLOTS; ++i) { 643 sc->sc_taskfile->xmit[i].len = 0; 644 sc->sc_taskfile->xmit[i].control = 0x00; 645 sc->sc_taskfile->xmit[i].buffer = 646 vtophys((u_int)sc->sc_xmit_bufs[i]); /* u_int? */ 647 } 648 649 for (i = 0; i < RX_SLOTS; ++i) { 650 sc->sc_taskfile->recv[i].len = 0; 651 sc->sc_taskfile->recv[i].control = 0x83; 652 sc->sc_taskfile->recv[i].buffer = 653 vtophys((u_int)sc->sc_recv_bufs[i]); /* u_int? */ 654 } 655 656 sc->sc_txpending = 0; 657 658 splx(s); 659} 660 661static int 662oboe_alloc_taskfile(struct oboe_softc *sc) 663{ 664 int i; 665 /* XXX */ 666 uint32_t addr = (uint32_t)malloc(OBOE_TASK_BUF_LEN, M_DEVBUF, M_WAITOK); 667 if (addr == 0) { 668 goto bad; 669 } 670 addr &= ~(sizeof (struct OboeTaskFile) - 1); 671 addr += sizeof (struct OboeTaskFile); 672 sc->sc_taskfile = (struct OboeTaskFile *) addr; 673 674 for (i = 0; i < TX_SLOTS; ++i) { 675 sc->sc_xmit_bufs[i] = 676 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 677 sc->sc_xmit_stores[i] = 678 malloc(TX_BUF_SZ, M_DEVBUF, M_WAITOK); 679 if (sc->sc_xmit_bufs[i] == NULL || 680 sc->sc_xmit_stores[i] == NULL) { 681 goto bad; 682 } 683 } 684 for (i = 0; i < RX_SLOTS; ++i) { 685 sc->sc_recv_bufs[i] = 686 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 687 sc->sc_recv_stores[i] = 688 malloc(RX_BUF_SZ, M_DEVBUF, M_WAITOK); 689 if (sc->sc_recv_bufs[i] == NULL || 690 sc->sc_recv_stores[i] == NULL) { 691 goto bad; 692 } 693 } 694 695 return 0; 696bad: 697 printf("oboe: malloc for buffers failed()\n"); 698 return 1; 699} 700 701static void 702oboe_startchip (struct oboe_softc *sc) 703{ 704 uint32_t physaddr; 705 706 OUTB(sc, 0, OBOE_LOCK); 707 OUTB(sc, 0, OBOE_RST); 708 OUTB(sc, OBOE_NTR_VAL, OBOE_NTR); 709 OUTB(sc, 0xf0, OBOE_REG_D); 710 OUTB(sc, 0xff, OBOE_ISR); 711 OUTB(sc, 0x0f, OBOE_REG_1A); 712 OUTB(sc, 0xff, OBOE_REG_1B); 713 714 physaddr = vtophys((u_int)sc->sc_taskfile); /* u_int? */ 715 716 OUTB(sc, (physaddr >> 0x0a) & 0xff, OBOE_TFP0); 717 OUTB(sc, (physaddr >> 0x12) & 0xff, OBOE_TFP1); 718 OUTB(sc, (physaddr >> 0x1a) & 0x3f, OBOE_TFP2); 719 720 OUTB(sc, 0x0e, OBOE_REG_11); 721 OUTB(sc, 0x80, OBOE_RST); 722 723 (void)oboe_setbaud(sc, 9600); 724 725 sc->sc_rxs = INB(sc, OBOE_RCVT); 726 if (sc->sc_rxs < 0 || sc->sc_rxs >= RX_SLOTS) 727 sc->sc_rxs = 0; 728 sc->sc_txs = INB(sc, OBOE_XMTT) - OBOE_XMTT_OFFSET; 729 if (sc->sc_txs < 0 || sc->sc_txs >= TX_SLOTS) 730 sc->sc_txs = 0; 731} 732 733static void 734oboe_stopchip (struct oboe_softc *sc) 735{ 736 OUTB(sc, 0x0e, OBOE_REG_11); 737 OUTB(sc, 0x00, OBOE_RST); 738 OUTB(sc, 0x3f, OBOE_TFP2); /* Write the taskfile address */ 739 OUTB(sc, 0xff, OBOE_TFP1); 740 OUTB(sc, 0xff, OBOE_TFP0); 741 OUTB(sc, 0x0f, OBOE_REG_1B); 742 OUTB(sc, 0xff, OBOE_REG_1A); 743 OUTB(sc, 0x00, OBOE_ISR); /* XXX: should i do this to disable ints? */ 744 OUTB(sc, 0x80, OBOE_RST); 745 OUTB(sc, 0x0e, OBOE_LOCK); 746} 747 748#define SPEEDCASE(speed, type, divisor) \ 749case speed: \ 750OUTB(sc, OBOE_PMDL_##type, OBOE_PMDL); \ 751OUTB(sc, OBOE_SMDL_##type, OBOE_SMDL); \ 752OUTB(sc, divisor, OBOE_UDIV); \ 753break 754 755static int 756oboe_setbaud(struct oboe_softc *sc, int baud) 757{ 758 int s; 759 760 DPRINTF(("oboe: setting baud to %d\n", baud)); 761 762 s = splir(); 763 764 switch (baud) { 765 SPEEDCASE( 2400, SIR, 0xbf); 766 SPEEDCASE( 9600, SIR, 0x2f); 767 SPEEDCASE( 19200, SIR, 0x17); 768 SPEEDCASE( 38400, SIR, 0x0b); 769 SPEEDCASE( 57600, SIR, 0x07); 770 SPEEDCASE( 115200, SIR, 0x03); 771 SPEEDCASE(1152000, MIR, 0x01); 772 SPEEDCASE(4000000, FIR, 0x00); 773 default: 774 DPRINTF(("oboe: cannot set speed to %d\n", baud)); 775 splx(s); 776 return (EINVAL); 777 } 778 779 OUTB(sc, 0x00, OBOE_RST); 780 OUTB(sc, 0x80, OBOE_RST); 781 OUTB(sc, 0x01, OBOE_REG_9); 782 783 sc->sc_speed = baud; 784 785 splx(s); 786 787 return (0); 788} 789