Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/sbc.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Seigo Tanimura 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifdef HAVE_KERNEL_OPTION_HEADERS 30 #include "opt_snd.h" 31 #endif 32 33 #include <dev/sound/chip.h> 34 #include <dev/sound/pcm/sound.h> 35 #include <dev/sound/isa/sb.h> 36 37 #include <isa/isavar.h> 38 39 SND_DECLARE_FILE("$FreeBSD: releng/12.0/sys/dev/sound/isa/sbc.c 328524 2018-01-29 00:22:30Z imp $"); 40 41 #define IO_MAX 3 42 #define IRQ_MAX 1 43 #define DRQ_MAX 2 44 #define INTR_MAX 2 45 46 struct sbc_softc; 47 48 struct sbc_ihl { 49 driver_intr_t *intr[INTR_MAX]; 50 void *intr_arg[INTR_MAX]; 51 struct sbc_softc *parent; 52 }; 53 54 /* Here is the parameter structure per a device. */ 55 struct sbc_softc { 56 device_t dev; /* device */ 57 device_t child_pcm, child_midi1, child_midi2; 58 59 int io_rid[IO_MAX]; /* io port rids */ 60 struct resource *io[IO_MAX]; /* io port resources */ 61 int io_alloced[IO_MAX]; /* io port alloc flag */ 62 63 int irq_rid[IRQ_MAX]; /* irq rids */ 64 struct resource *irq[IRQ_MAX]; /* irq resources */ 65 int irq_alloced[IRQ_MAX]; /* irq alloc flag */ 66 67 int drq_rid[DRQ_MAX]; /* drq rids */ 68 struct resource *drq[DRQ_MAX]; /* drq resources */ 69 int drq_alloced[DRQ_MAX]; /* drq alloc flag */ 70 71 struct sbc_ihl ihl[IRQ_MAX]; 72 73 void *ih[IRQ_MAX]; 74 75 struct mtx *lock; 76 77 u_int32_t bd_ver; 78 }; 79 80 static int sbc_probe(device_t dev); 81 static int sbc_attach(device_t dev); 82 static void sbc_intr(void *p); 83 84 static struct resource *sbc_alloc_resource(device_t bus, device_t child, int type, int *rid, 85 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); 86 static int sbc_release_resource(device_t bus, device_t child, int type, int rid, 87 struct resource *r); 88 static int sbc_setup_intr(device_t dev, device_t child, struct resource *irq, 89 int flags, 90 driver_filter_t *filter, 91 driver_intr_t *intr, 92 void *arg, void **cookiep); 93 static int sbc_teardown_intr(device_t dev, device_t child, struct resource *irq, 94 void *cookie); 95 96 static int alloc_resource(struct sbc_softc *scp); 97 static int release_resource(struct sbc_softc *scp); 98 99 static devclass_t sbc_devclass; 100 101 static int io_range[3] = {0x10, 0x2, 0x4}; 102 103 static int sb_rd(struct resource *io, int reg); 104 static void sb_wr(struct resource *io, int reg, u_int8_t val); 105 static int sb_dspready(struct resource *io); 106 static int sb_cmd(struct resource *io, u_char val); 107 static u_int sb_get_byte(struct resource *io); 108 static void sb_setmixer(struct resource *io, u_int port, u_int value); 109 110 static void 111 sbc_lockinit(struct sbc_softc *scp) 112 { 113 scp->lock = snd_mtxcreate(device_get_nameunit(scp->dev), 114 "snd_sbc softc"); 115 } 116 117 static void 118 sbc_lockdestroy(struct sbc_softc *scp) 119 { 120 snd_mtxfree(scp->lock); 121 } 122 123 void 124 sbc_lock(struct sbc_softc *scp) 125 { 126 snd_mtxlock(scp->lock); 127 } 128 129 void 130 sbc_lockassert(struct sbc_softc *scp) 131 { 132 snd_mtxassert(scp->lock); 133 } 134 135 void 136 sbc_unlock(struct sbc_softc *scp) 137 { 138 snd_mtxunlock(scp->lock); 139 } 140 141 static int 142 sb_rd(struct resource *io, int reg) 143 { 144 return bus_space_read_1(rman_get_bustag(io), 145 rman_get_bushandle(io), 146 reg); 147 } 148 149 static void 150 sb_wr(struct resource *io, int reg, u_int8_t val) 151 { 152 bus_space_write_1(rman_get_bustag(io), 153 rman_get_bushandle(io), 154 reg, val); 155 } 156 157 static int 158 sb_dspready(struct resource *io) 159 { 160 return ((sb_rd(io, SBDSP_STATUS) & 0x80) == 0); 161 } 162 163 static int 164 sb_dspwr(struct resource *io, u_char val) 165 { 166 int i; 167 168 for (i = 0; i < 1000; i++) { 169 if (sb_dspready(io)) { 170 sb_wr(io, SBDSP_CMD, val); 171 return 1; 172 } 173 if (i > 10) DELAY((i > 100)? 1000 : 10); 174 } 175 printf("sb_dspwr(0x%02x) timed out.\n", val); 176 return 0; 177 } 178 179 static int 180 sb_cmd(struct resource *io, u_char val) 181 { 182 return sb_dspwr(io, val); 183 } 184 185 static void 186 sb_setmixer(struct resource *io, u_int port, u_int value) 187 { 188 u_long flags; 189 190 flags = spltty(); 191 sb_wr(io, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */ 192 DELAY(10); 193 sb_wr(io, SB_MIX_DATA, (u_char) (value & 0xff)); 194 DELAY(10); 195 splx(flags); 196 } 197 198 static u_int 199 sb_get_byte(struct resource *io) 200 { 201 int i; 202 203 for (i = 1000; i > 0; i--) { 204 if (sb_rd(io, DSP_DATA_AVAIL) & 0x80) 205 return sb_rd(io, DSP_READ); 206 else 207 DELAY(20); 208 } 209 return 0xffff; 210 } 211 212 static int 213 sb_reset_dsp(struct resource *io) 214 { 215 sb_wr(io, SBDSP_RST, 3); 216 DELAY(100); 217 sb_wr(io, SBDSP_RST, 0); 218 return (sb_get_byte(io) == 0xAA)? 0 : ENXIO; 219 } 220 221 static int 222 sb_identify_board(struct resource *io) 223 { 224 int ver, essver, rev; 225 226 sb_cmd(io, DSP_CMD_GETVER); /* Get version */ 227 ver = (sb_get_byte(io) << 8) | sb_get_byte(io); 228 if (ver < 0x100 || ver > 0x4ff) return 0; 229 if (ver == 0x0301) { 230 /* Try to detect ESS chips. */ 231 sb_cmd(io, DSP_CMD_GETID); /* Return ident. bytes. */ 232 essver = (sb_get_byte(io) << 8) | sb_get_byte(io); 233 rev = essver & 0x000f; 234 essver &= 0xfff0; 235 if (essver == 0x4880) ver |= 0x1000; 236 else if (essver == 0x6880) ver = 0x0500 | rev; 237 } 238 return ver; 239 } 240 241 static struct isa_pnp_id sbc_ids[] = { 242 {0x01008c0e, "Creative ViBRA16C"}, /* CTL0001 */ 243 {0x31008c0e, "Creative SB16/SB32"}, /* CTL0031 */ 244 {0x41008c0e, "Creative SB16/SB32"}, /* CTL0041 */ 245 {0x42008c0e, "Creative SB AWE64"}, /* CTL0042 */ 246 {0x43008c0e, "Creative ViBRA16X"}, /* CTL0043 */ 247 {0x44008c0e, "Creative SB AWE64 Gold"}, /* CTL0044 */ 248 {0x45008c0e, "Creative SB AWE64"}, /* CTL0045 */ 249 {0x46008c0e, "Creative SB AWE64"}, /* CTL0046 */ 250 251 {0x01000000, "Avance Logic ALS100+"}, /* @@@0001 - ViBRA16X clone */ 252 {0x01100000, "Avance Asound 110"}, /* @@@1001 */ 253 {0x01200000, "Avance Logic ALS120"}, /* @@@2001 - ViBRA16X clone */ 254 255 {0x81167316, "ESS ES1681"}, /* ESS1681 */ 256 {0x02017316, "ESS ES1688"}, /* ESS1688 */ 257 {0x68097316, "ESS ES1688"}, /* ESS1688 */ 258 {0x68187316, "ESS ES1868"}, /* ESS1868 */ 259 {0x03007316, "ESS ES1869"}, /* ESS1869 */ 260 {0x69187316, "ESS ES1869"}, /* ESS1869 */ 261 {0xabb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ab */ 262 {0xacb0110e, "ESS ES1869 (Compaq OEM)"}, /* CPQb0ac */ 263 {0x78187316, "ESS ES1878"}, /* ESS1878 */ 264 {0x79187316, "ESS ES1879"}, /* ESS1879 */ 265 {0x88187316, "ESS ES1888"}, /* ESS1888 */ 266 {0x07017316, "ESS ES1888 (DEC OEM)"}, /* ESS0107 */ 267 {0x06017316, "ESS ES1888 (Dell OEM)"}, /* ESS0106 */ 268 {0} 269 }; 270 271 static int 272 sbc_probe(device_t dev) 273 { 274 char *s = NULL; 275 u_int32_t lid, vid; 276 277 lid = isa_get_logicalid(dev); 278 vid = isa_get_vendorid(dev); 279 if (lid) { 280 if (lid == 0x01000000 && vid != 0x01009305) /* ALS0001 */ 281 return ENXIO; 282 /* Check pnp ids */ 283 return ISA_PNP_PROBE(device_get_parent(dev), dev, sbc_ids); 284 } else { 285 int rid = 0, ver; 286 struct resource *io; 287 288 io = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid, 289 16, RF_ACTIVE); 290 if (!io) goto bad; 291 if (sb_reset_dsp(io)) goto bad2; 292 ver = sb_identify_board(io); 293 if (ver == 0) goto bad2; 294 switch ((ver & 0x00000f00) >> 8) { 295 case 1: 296 device_set_desc(dev, "SoundBlaster 1.0 (not supported)"); 297 s = NULL; 298 break; 299 300 case 2: 301 s = "SoundBlaster 2.0"; 302 break; 303 304 case 3: 305 s = (ver & 0x0000f000)? "ESS 488" : "SoundBlaster Pro"; 306 break; 307 308 case 4: 309 s = "SoundBlaster 16"; 310 break; 311 312 case 5: 313 s = (ver & 0x00000008)? "ESS 688" : "ESS 1688"; 314 break; 315 } 316 if (s) device_set_desc(dev, s); 317 bad2: bus_release_resource(dev, SYS_RES_IOPORT, rid, io); 318 bad: return s? 0 : ENXIO; 319 } 320 } 321 322 static int 323 sbc_attach(device_t dev) 324 { 325 char *err = NULL; 326 struct sbc_softc *scp; 327 struct sndcard_func *func; 328 u_int32_t logical_id = isa_get_logicalid(dev); 329 int flags = device_get_flags(dev); 330 int f, dh, dl, x, irq, i; 331 332 if (!logical_id && (flags & DV_F_DUAL_DMA)) { 333 bus_set_resource(dev, SYS_RES_DRQ, 1, 334 flags & DV_F_DRQ_MASK, 1); 335 } 336 337 scp = device_get_softc(dev); 338 bzero(scp, sizeof(*scp)); 339 scp->dev = dev; 340 sbc_lockinit(scp); 341 err = "alloc_resource"; 342 if (alloc_resource(scp)) goto bad; 343 344 err = "sb_reset_dsp"; 345 if (sb_reset_dsp(scp->io[0])) goto bad; 346 err = "sb_identify_board"; 347 scp->bd_ver = sb_identify_board(scp->io[0]) & 0x00000fff; 348 if (scp->bd_ver == 0) goto bad; 349 f = 0; 350 if (logical_id == 0x01200000 && scp->bd_ver < 0x0400) scp->bd_ver = 0x0499; 351 switch ((scp->bd_ver & 0x0f00) >> 8) { 352 case 1: /* old sound blaster has nothing... */ 353 break; 354 355 case 2: 356 f |= BD_F_DUP_MIDI; 357 if (scp->bd_ver > 0x200) f |= BD_F_MIX_CT1335; 358 break; 359 360 case 5: 361 f |= BD_F_ESS; 362 scp->bd_ver = 0x0301; 363 case 3: 364 f |= BD_F_DUP_MIDI | BD_F_MIX_CT1345; 365 break; 366 367 case 4: 368 f |= BD_F_SB16 | BD_F_MIX_CT1745; 369 if (scp->drq[0]) dl = rman_get_start(scp->drq[0]); else dl = -1; 370 if (scp->drq[1]) dh = rman_get_start(scp->drq[1]); else dh = dl; 371 if (!logical_id && (dh < dl)) { 372 struct resource *r; 373 r = scp->drq[0]; 374 scp->drq[0] = scp->drq[1]; 375 scp->drq[1] = r; 376 dl = rman_get_start(scp->drq[0]); 377 dh = rman_get_start(scp->drq[1]); 378 } 379 /* soft irq/dma configuration */ 380 x = -1; 381 irq = rman_get_start(scp->irq[0]); 382 if (irq == 5) x = 2; 383 else if (irq == 7) x = 4; 384 else if (irq == 9) x = 1; 385 else if (irq == 10) x = 8; 386 if (x == -1) { 387 err = "bad irq (5/7/9/10 valid)"; 388 goto bad; 389 } 390 else sb_setmixer(scp->io[0], IRQ_NR, x); 391 sb_setmixer(scp->io[0], DMA_NR, (1 << dh) | (1 << dl)); 392 if (bootverbose) { 393 device_printf(dev, "setting card to irq %d, drq %d", irq, dl); 394 if (dl != dh) printf(", %d", dh); 395 printf("\n"); 396 } 397 break; 398 } 399 400 switch (logical_id) { 401 case 0x43008c0e: /* CTL0043 */ 402 case 0x01200000: 403 case 0x01000000: 404 f |= BD_F_SB16X; 405 break; 406 } 407 scp->bd_ver |= f << 16; 408 409 err = "setup_intr"; 410 for (i = 0; i < IRQ_MAX; i++) { 411 scp->ihl[i].parent = scp; 412 if (snd_setup_intr(dev, scp->irq[i], 0, sbc_intr, &scp->ihl[i], &scp->ih[i])) 413 goto bad; 414 } 415 416 /* PCM Audio */ 417 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO); 418 if (func == NULL) goto bad; 419 func->func = SCF_PCM; 420 scp->child_pcm = device_add_child(dev, "pcm", -1); 421 device_set_ivars(scp->child_pcm, func); 422 423 /* Midi Interface */ 424 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO); 425 if (func == NULL) goto bad; 426 func->func = SCF_MIDI; 427 scp->child_midi1 = device_add_child(dev, "midi", -1); 428 device_set_ivars(scp->child_midi1, func); 429 430 /* OPL FM Synthesizer */ 431 func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT | M_ZERO); 432 if (func == NULL) goto bad; 433 func->func = SCF_SYNTH; 434 scp->child_midi2 = device_add_child(dev, "midi", -1); 435 device_set_ivars(scp->child_midi2, func); 436 437 /* probe/attach kids */ 438 bus_generic_attach(dev); 439 440 return (0); 441 442 bad: if (err) device_printf(dev, "%s\n", err); 443 release_resource(scp); 444 return (ENXIO); 445 } 446 447 static int 448 sbc_detach(device_t dev) 449 { 450 struct sbc_softc *scp = device_get_softc(dev); 451 452 sbc_lock(scp); 453 device_delete_child(dev, scp->child_midi2); 454 device_delete_child(dev, scp->child_midi1); 455 device_delete_child(dev, scp->child_pcm); 456 release_resource(scp); 457 sbc_lockdestroy(scp); 458 return bus_generic_detach(dev); 459 } 460 461 static void 462 sbc_intr(void *p) 463 { 464 struct sbc_ihl *ihl = p; 465 int i; 466 467 /* sbc_lock(ihl->parent); */ 468 i = 0; 469 while (i < INTR_MAX) { 470 if (ihl->intr[i] != NULL) ihl->intr[i](ihl->intr_arg[i]); 471 i++; 472 } 473 /* sbc_unlock(ihl->parent); */ 474 } 475 476 static int 477 sbc_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, 478 driver_filter_t *filter, 479 driver_intr_t *intr, 480 void *arg, void **cookiep) 481 { 482 struct sbc_softc *scp = device_get_softc(dev); 483 struct sbc_ihl *ihl = NULL; 484 int i, ret; 485 486 if (filter != NULL) { 487 printf("sbc.c: we cannot use a filter here\n"); 488 return (EINVAL); 489 } 490 sbc_lock(scp); 491 i = 0; 492 while (i < IRQ_MAX) { 493 if (irq == scp->irq[i]) ihl = &scp->ihl[i]; 494 i++; 495 } 496 ret = 0; 497 if (ihl == NULL) ret = EINVAL; 498 i = 0; 499 while ((ret == 0) && (i < INTR_MAX)) { 500 if (ihl->intr[i] == NULL) { 501 ihl->intr[i] = intr; 502 ihl->intr_arg[i] = arg; 503 *cookiep = &ihl->intr[i]; 504 ret = -1; 505 } else i++; 506 } 507 sbc_unlock(scp); 508 return (ret > 0)? EINVAL : 0; 509 } 510 511 static int 512 sbc_teardown_intr(device_t dev, device_t child, struct resource *irq, 513 void *cookie) 514 { 515 struct sbc_softc *scp = device_get_softc(dev); 516 struct sbc_ihl *ihl = NULL; 517 int i, ret; 518 519 sbc_lock(scp); 520 i = 0; 521 while (i < IRQ_MAX) { 522 if (irq == scp->irq[i]) ihl = &scp->ihl[i]; 523 i++; 524 } 525 ret = 0; 526 if (ihl == NULL) ret = EINVAL; 527 i = 0; 528 while ((ret == 0) && (i < INTR_MAX)) { 529 if (cookie == &ihl->intr[i]) { 530 ihl->intr[i] = NULL; 531 ihl->intr_arg[i] = NULL; 532 return 0; 533 } else i++; 534 } 535 sbc_unlock(scp); 536 return (ret > 0)? EINVAL : 0; 537 } 538 539 static struct resource * 540 sbc_alloc_resource(device_t bus, device_t child, int type, int *rid, 541 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) 542 { 543 struct sbc_softc *scp; 544 int *alloced, rid_max, alloced_max; 545 struct resource **res; 546 547 scp = device_get_softc(bus); 548 switch (type) { 549 case SYS_RES_IOPORT: 550 alloced = scp->io_alloced; 551 res = scp->io; 552 rid_max = IO_MAX - 1; 553 alloced_max = 1; 554 break; 555 case SYS_RES_DRQ: 556 alloced = scp->drq_alloced; 557 res = scp->drq; 558 rid_max = DRQ_MAX - 1; 559 alloced_max = 1; 560 break; 561 case SYS_RES_IRQ: 562 alloced = scp->irq_alloced; 563 res = scp->irq; 564 rid_max = IRQ_MAX - 1; 565 alloced_max = INTR_MAX; /* pcm and mpu may share the irq. */ 566 break; 567 default: 568 return (NULL); 569 } 570 571 if (*rid > rid_max || alloced[*rid] == alloced_max) 572 return (NULL); 573 574 alloced[*rid]++; 575 return (res[*rid]); 576 } 577 578 static int 579 sbc_release_resource(device_t bus, device_t child, int type, int rid, 580 struct resource *r) 581 { 582 struct sbc_softc *scp; 583 int *alloced, rid_max; 584 585 scp = device_get_softc(bus); 586 switch (type) { 587 case SYS_RES_IOPORT: 588 alloced = scp->io_alloced; 589 rid_max = IO_MAX - 1; 590 break; 591 case SYS_RES_DRQ: 592 alloced = scp->drq_alloced; 593 rid_max = DRQ_MAX - 1; 594 break; 595 case SYS_RES_IRQ: 596 alloced = scp->irq_alloced; 597 rid_max = IRQ_MAX - 1; 598 break; 599 default: 600 return (1); 601 } 602 603 if (rid > rid_max || alloced[rid] == 0) 604 return (1); 605 606 alloced[rid]--; 607 return (0); 608 } 609 610 static int 611 sbc_read_ivar(device_t bus, device_t dev, int index, uintptr_t * result) 612 { 613 struct sbc_softc *scp = device_get_softc(bus); 614 struct sndcard_func *func = device_get_ivars(dev); 615 616 switch (index) { 617 case 0: 618 *result = func->func; 619 break; 620 621 case 1: 622 *result = scp->bd_ver; 623 break; 624 625 default: 626 return ENOENT; 627 } 628 629 return 0; 630 } 631 632 static int 633 sbc_write_ivar(device_t bus, device_t dev, 634 int index, uintptr_t value) 635 { 636 switch (index) { 637 case 0: 638 case 1: 639 return EINVAL; 640 641 default: 642 return (ENOENT); 643 } 644 } 645 646 static int 647 alloc_resource(struct sbc_softc *scp) 648 { 649 int i; 650 651 for (i = 0 ; i < IO_MAX ; i++) { 652 if (scp->io[i] == NULL) { 653 scp->io_rid[i] = i; 654 scp->io[i] = bus_alloc_resource_anywhere(scp->dev, 655 SYS_RES_IOPORT, 656 &scp->io_rid[i], 657 io_range[i], 658 RF_ACTIVE); 659 if (i == 0 && scp->io[i] == NULL) 660 return (1); 661 scp->io_alloced[i] = 0; 662 } 663 } 664 for (i = 0 ; i < DRQ_MAX ; i++) { 665 if (scp->drq[i] == NULL) { 666 scp->drq_rid[i] = i; 667 scp->drq[i] = bus_alloc_resource_any(scp->dev, 668 SYS_RES_DRQ, 669 &scp->drq_rid[i], 670 RF_ACTIVE); 671 if (i == 0 && scp->drq[i] == NULL) 672 return (1); 673 scp->drq_alloced[i] = 0; 674 } 675 } 676 for (i = 0 ; i < IRQ_MAX ; i++) { 677 if (scp->irq[i] == NULL) { 678 scp->irq_rid[i] = i; 679 scp->irq[i] = bus_alloc_resource_any(scp->dev, 680 SYS_RES_IRQ, 681 &scp->irq_rid[i], 682 RF_ACTIVE); 683 if (i == 0 && scp->irq[i] == NULL) 684 return (1); 685 scp->irq_alloced[i] = 0; 686 } 687 } 688 return (0); 689 } 690 691 static int 692 release_resource(struct sbc_softc *scp) 693 { 694 int i; 695 696 for (i = 0 ; i < IO_MAX ; i++) { 697 if (scp->io[i] != NULL) { 698 bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[i], scp->io[i]); 699 scp->io[i] = NULL; 700 } 701 } 702 for (i = 0 ; i < DRQ_MAX ; i++) { 703 if (scp->drq[i] != NULL) { 704 bus_release_resource(scp->dev, SYS_RES_DRQ, scp->drq_rid[i], scp->drq[i]); 705 scp->drq[i] = NULL; 706 } 707 } 708 for (i = 0 ; i < IRQ_MAX ; i++) { 709 if (scp->irq[i] != NULL) { 710 if (scp->ih[i] != NULL) 711 bus_teardown_intr(scp->dev, scp->irq[i], scp->ih[i]); 712 scp->ih[i] = NULL; 713 bus_release_resource(scp->dev, SYS_RES_IRQ, scp->irq_rid[i], scp->irq[i]); 714 scp->irq[i] = NULL; 715 } 716 } 717 return (0); 718 } 719 720 static device_method_t sbc_methods[] = { 721 /* Device interface */ 722 DEVMETHOD(device_probe, sbc_probe), 723 DEVMETHOD(device_attach, sbc_attach), 724 DEVMETHOD(device_detach, sbc_detach), 725 DEVMETHOD(device_shutdown, bus_generic_shutdown), 726 DEVMETHOD(device_suspend, bus_generic_suspend), 727 DEVMETHOD(device_resume, bus_generic_resume), 728 729 /* Bus interface */ 730 DEVMETHOD(bus_read_ivar, sbc_read_ivar), 731 DEVMETHOD(bus_write_ivar, sbc_write_ivar), 732 DEVMETHOD(bus_alloc_resource, sbc_alloc_resource), 733 DEVMETHOD(bus_release_resource, sbc_release_resource), 734 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 735 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 736 DEVMETHOD(bus_setup_intr, sbc_setup_intr), 737 DEVMETHOD(bus_teardown_intr, sbc_teardown_intr), 738 739 DEVMETHOD_END 740 }; 741 742 static driver_t sbc_driver = { 743 "sbc", 744 sbc_methods, 745 sizeof(struct sbc_softc), 746 }; 747 748 /* sbc can be attached to an isa bus. */ 749 DRIVER_MODULE(snd_sbc, isa, sbc_driver, sbc_devclass, 0, 0); 750 DRIVER_MODULE(snd_sbc, acpi, sbc_driver, sbc_devclass, 0, 0); 751 MODULE_DEPEND(snd_sbc, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 752 MODULE_VERSION(snd_sbc, 1); 753 ISA_PNP_INFO(sbc_ids);
Cache object: 2392a8a5f24eb2f771864e4eefbb1897
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