vs.c revision 1.47
1 /* $NetBSD: vs.c,v 1.47 2017/09/02 12:52:55 isaki Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Tetsuya Isaki. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * VS - OKI MSM6258 ADPCM voice synthesizer device driver. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: vs.c,v 1.47 2017/09/02 12:52:55 isaki Exp $"); 34 35 #include "audio.h" 36 #include "vs.h" 37 #if NAUDIO > 0 && NVS > 0 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/kmem.h> 43 44 #include <sys/audioio.h> 45 #include <dev/audio_if.h> 46 #include <dev/mulaw.h> 47 48 #include <machine/bus.h> 49 #include <machine/cpu.h> 50 51 #include <dev/ic/msm6258var.h> 52 53 #include <arch/x68k/dev/dmacvar.h> 54 #include <arch/x68k/dev/intiovar.h> 55 #include <arch/x68k/dev/opmvar.h> 56 57 #include <arch/x68k/dev/vsvar.h> 58 59 #ifdef VS_DEBUG 60 #define DPRINTF(y,x) if (vs_debug >= (y)) printf x 61 static int vs_debug; 62 #ifdef AUDIO_DEBUG 63 extern int audiodebug; 64 #endif 65 #else 66 #define DPRINTF(y,x) 67 #endif 68 69 static int vs_match(device_t, cfdata_t, void *); 70 static void vs_attach(device_t, device_t, void *); 71 72 static int vs_dmaintr(void *); 73 static int vs_dmaerrintr(void *); 74 75 /* MI audio layer interface */ 76 static int vs_open(void *, int); 77 static void vs_close(void *); 78 static int vs_query_encoding(void *, struct audio_encoding *); 79 static int vs_set_params(void *, int, int, audio_params_t *, 80 audio_params_t *, stream_filter_list_t *, stream_filter_list_t *); 81 static int vs_init_output(void *, void *, int); 82 static int vs_init_input(void *, void *, int); 83 static int vs_start_input(void *, void *, int, void (*)(void *), void *); 84 static int vs_start_output(void *, void *, int, void (*)(void *), void *); 85 static int vs_halt_output(void *); 86 static int vs_halt_input(void *); 87 static int vs_allocmem(struct vs_softc *, size_t, size_t, size_t, 88 struct vs_dma *); 89 static void vs_freemem(struct vs_dma *); 90 static int vs_getdev(void *, struct audio_device *); 91 static int vs_set_port(void *, mixer_ctrl_t *); 92 static int vs_get_port(void *, mixer_ctrl_t *); 93 static int vs_query_devinfo(void *, mixer_devinfo_t *); 94 static void *vs_allocm(void *, int, size_t); 95 static void vs_freem(void *, void *, size_t); 96 static size_t vs_round_buffersize(void *, int, size_t); 97 static int vs_get_props(void *); 98 static void vs_get_locks(void *, kmutex_t **, kmutex_t **); 99 100 /* lower functions */ 101 static int vs_round_sr(u_long); 102 static void vs_set_sr(struct vs_softc *, int); 103 static inline void vs_set_po(struct vs_softc *, u_long); 104 105 extern struct cfdriver vs_cd; 106 107 CFATTACH_DECL_NEW(vs, sizeof(struct vs_softc), 108 vs_match, vs_attach, NULL, NULL); 109 110 static int vs_attached; 111 112 static const struct audio_hw_if vs_hw_if = { 113 vs_open, 114 vs_close, 115 NULL, /* drain */ 116 vs_query_encoding, 117 vs_set_params, 118 NULL, /* round_blocksize */ 119 NULL, /* commit_settings */ 120 vs_init_output, 121 vs_init_input, 122 vs_start_output, 123 vs_start_input, 124 vs_halt_output, 125 vs_halt_input, 126 NULL, /* speaker_ctl */ 127 vs_getdev, 128 NULL, /* setfd */ 129 vs_set_port, 130 vs_get_port, 131 vs_query_devinfo, 132 vs_allocm, 133 vs_freem, 134 vs_round_buffersize, 135 NULL, /* mappage */ 136 vs_get_props, 137 NULL, /* trigger_output */ 138 NULL, /* trigger_input */ 139 NULL, 140 vs_get_locks, 141 }; 142 143 static struct audio_device vs_device = { 144 "OKI MSM6258", 145 "", 146 "vs" 147 }; 148 149 struct { 150 u_long rate; 151 u_char clk; 152 u_char den; 153 } vs_l2r[] = { 154 { VS_RATE_15K, VS_CLK_8MHZ, VS_SRATE_512 }, 155 { VS_RATE_10K, VS_CLK_8MHZ, VS_SRATE_768 }, 156 { VS_RATE_7K, VS_CLK_8MHZ, VS_SRATE_1024}, 157 { VS_RATE_5K, VS_CLK_4MHZ, VS_SRATE_768 }, 158 { VS_RATE_3K, VS_CLK_4MHZ, VS_SRATE_1024} 159 }; 160 161 #define NUM_RATE (sizeof(vs_l2r)/sizeof(vs_l2r[0])) 162 163 extern stream_filter_factory_t null_filter; 164 165 static int 166 vs_match(device_t parent, cfdata_t cf, void *aux) 167 { 168 struct intio_attach_args *ia; 169 170 ia = aux; 171 if (strcmp(ia->ia_name, "vs") || vs_attached) 172 return 0; 173 174 if (ia->ia_addr == INTIOCF_ADDR_DEFAULT) 175 ia->ia_addr = VS_ADDR; 176 if (ia->ia_dma == INTIOCF_DMA_DEFAULT) 177 ia->ia_dma = VS_DMA; 178 if (ia->ia_dmaintr == INTIOCF_DMAINTR_DEFAULT) 179 ia->ia_dmaintr = VS_DMAINTR; 180 181 /* fixed parameters */ 182 if (ia->ia_addr != VS_ADDR) 183 return 0; 184 if (ia->ia_dma != VS_DMA) 185 return 0; 186 if (ia->ia_dmaintr != VS_DMAINTR) 187 return 0; 188 189 #ifdef VS_DEBUG 190 vs_debug = 1; 191 #ifdef AUDIO_DEBUG 192 audiodebug = 2; 193 #endif 194 #endif 195 196 return 1; 197 } 198 199 static void 200 vs_attach(device_t parent, device_t self, void *aux) 201 { 202 struct vs_softc *sc; 203 bus_space_tag_t iot; 204 bus_space_handle_t ioh; 205 struct intio_attach_args *ia; 206 207 sc = device_private(self); 208 sc->sc_dev = self; 209 ia = aux; 210 vs_attached = 1; 211 212 printf("\n"); 213 214 /* Re-map the I/O space */ 215 iot = ia->ia_bst; 216 bus_space_map(iot, ia->ia_addr, 0x2000, BUS_SPACE_MAP_SHIFTED, &ioh); 217 218 /* Initialize sc */ 219 sc->sc_iot = iot; 220 sc->sc_ioh = ioh; 221 sc->sc_hw_if = &vs_hw_if; 222 sc->sc_addr = (void *) ia->ia_addr; 223 sc->sc_dmas = NULL; 224 sc->sc_prev_vd = NULL; 225 sc->sc_active = 0; 226 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 227 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED); 228 229 /* XXX */ 230 bus_space_map(iot, PPI_ADDR, PPI_MAPSIZE, BUS_SPACE_MAP_SHIFTED, 231 &sc->sc_ppi); 232 233 /* Initialize DMAC */ 234 sc->sc_dmat = ia->ia_dmat; 235 sc->sc_dma_ch = dmac_alloc_channel(parent, ia->ia_dma, "vs", 236 ia->ia_dmaintr, vs_dmaintr, sc, 237 ia->ia_dmaintr+1, vs_dmaerrintr, sc, 238 (DMAC_DCR_XRM_CSWOH | DMAC_DCR_OTYP_EASYNC | DMAC_DCR_OPS_8BIT), 239 (DMAC_OCR_SIZE_BYTE | DMAC_OCR_REQG_EXTERNAL)); 240 241 aprint_normal_dev(self, "MSM6258V ADPCM voice synthesizer\n"); 242 243 audio_attach_mi(&vs_hw_if, sc, sc->sc_dev); 244 } 245 246 /* 247 * vs interrupt handler 248 */ 249 static int 250 vs_dmaintr(void *hdl) 251 { 252 struct vs_softc *sc; 253 254 DPRINTF(2, ("vs_dmaintr\n")); 255 sc = hdl; 256 257 mutex_spin_enter(&sc->sc_intr_lock); 258 259 if (sc->sc_pintr) { 260 sc->sc_pintr(sc->sc_parg); 261 } else if (sc->sc_rintr) { 262 sc->sc_rintr(sc->sc_rarg); 263 } else { 264 printf("vs_dmaintr: spurious interrupt\n"); 265 } 266 267 mutex_spin_exit(&sc->sc_intr_lock); 268 269 return 1; 270 } 271 272 static int 273 vs_dmaerrintr(void *hdl) 274 { 275 struct vs_softc *sc; 276 277 sc = hdl; 278 DPRINTF(1, ("%s: DMA transfer error.\n", device_xname(sc->sc_dev))); 279 /* XXX */ 280 vs_dmaintr(sc); 281 282 return 1; 283 } 284 285 286 /* 287 * audio MD layer interfaces 288 */ 289 290 static int 291 vs_open(void *hdl, int flags) 292 { 293 struct vs_softc *sc; 294 295 DPRINTF(1, ("vs_open: flags=%d\n", flags)); 296 sc = hdl; 297 sc->sc_pintr = NULL; 298 sc->sc_rintr = NULL; 299 sc->sc_active = 0; 300 301 return 0; 302 } 303 304 static void 305 vs_close(void *hdl) 306 { 307 308 DPRINTF(1, ("vs_close\n")); 309 } 310 311 static int 312 vs_query_encoding(void *hdl, struct audio_encoding *fp) 313 { 314 315 DPRINTF(1, ("vs_query_encoding\n")); 316 317 if (fp->index == 0) { 318 strcpy(fp->name, AudioEslinear); 319 fp->encoding = AUDIO_ENCODING_SLINEAR; 320 fp->precision = 8; 321 fp->flags = 0; 322 return 0; 323 } 324 if (fp->index == 1) { 325 strcpy(fp->name, AudioEslinear_be); 326 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 327 fp->precision = 16; 328 fp->flags = 0; 329 return 0; 330 } 331 return EINVAL; 332 } 333 334 static int 335 vs_round_sr(u_long rate) 336 { 337 int i; 338 int diff; 339 int nearest; 340 341 diff = rate; 342 nearest = 0; 343 for (i = 0; i < NUM_RATE; i++) { 344 if (rate >= vs_l2r[i].rate) { 345 if (rate - vs_l2r[i].rate < diff) { 346 diff = rate - vs_l2r[i].rate; 347 nearest = i; 348 } 349 } else { 350 if (vs_l2r[i].rate - rate < diff) { 351 diff = vs_l2r[i].rate - rate; 352 nearest = i; 353 } 354 } 355 } 356 if (diff * 100 / rate > 15) 357 return -1; 358 else 359 return nearest; 360 } 361 362 static int 363 vs_set_params(void *hdl, int setmode, int usemode, 364 audio_params_t *play, audio_params_t *rec, 365 stream_filter_list_t *pfil, stream_filter_list_t *rfil) 366 { 367 struct vs_softc *sc; 368 stream_filter_factory_t *pconv; 369 stream_filter_factory_t *rconv; 370 int rate; 371 372 sc = hdl; 373 374 DPRINTF(1, ("vs_set_params: mode=%d enc=%d rate=%d prec=%d ch=%d: ", 375 setmode, play->encoding, play->sample_rate, 376 play->precision, play->channels)); 377 378 /* *play and *rec are identical because !AUDIO_PROP_INDEPENDENT */ 379 380 if (play->channels != 1) { 381 DPRINTF(1, ("channels not matched\n")); 382 return EINVAL; 383 } 384 385 rate = vs_round_sr(play->sample_rate); 386 if (rate < 0) { 387 DPRINTF(1, ("rate not matched\n")); 388 return EINVAL; 389 } 390 391 if (play->precision == 8 && play->encoding == AUDIO_ENCODING_SLINEAR) { 392 pconv = msm6258_linear8_to_adpcm; 393 rconv = msm6258_adpcm_to_linear8; 394 } else if (play->precision == 16 && 395 play->encoding == AUDIO_ENCODING_SLINEAR_BE) { 396 pconv = msm6258_slinear16_to_adpcm; 397 rconv = msm6258_adpcm_to_slinear16; 398 } else { 399 DPRINTF(1, ("prec/enc not matched\n")); 400 return EINVAL; 401 } 402 403 sc->sc_current.rate = rate; 404 405 /* pfil and rfil are independent even if !AUDIO_PROP_INDEPENDENT */ 406 407 if ((setmode & AUMODE_PLAY) != 0) { 408 pfil->append(pfil, null_filter, play); 409 play->encoding = AUDIO_ENCODING_ADPCM; 410 play->validbits = 4; 411 play->precision = 4; 412 pfil->append(pfil, pconv, play); 413 } 414 if ((setmode & AUMODE_RECORD) != 0) { 415 rfil->append(rfil, null_filter, rec); 416 rec->encoding = AUDIO_ENCODING_ADPCM; 417 rec->validbits = 4; 418 rec->precision = 4; 419 rfil->append(rfil, rconv, rec); 420 } 421 422 DPRINTF(1, ("accepted\n")); 423 return 0; 424 } 425 426 static void 427 vs_set_sr(struct vs_softc *sc, int rate) 428 { 429 430 DPRINTF(1, ("setting sample rate to %d, %d\n", 431 rate, (int)vs_l2r[rate].rate)); 432 bus_space_write_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC, 433 (bus_space_read_1 (sc->sc_iot, sc->sc_ppi, 434 PPI_PORTC) & 0xf0) 435 | vs_l2r[rate].den); 436 adpcm_chgclk(vs_l2r[rate].clk); 437 } 438 439 static inline void 440 vs_set_po(struct vs_softc *sc, u_long po) 441 { 442 bus_space_write_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC, 443 (bus_space_read_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC) 444 & 0xfc) | po); 445 } 446 447 static int 448 vs_init_output(void *hdl, void *buffer, int size) 449 { 450 struct vs_softc *sc; 451 452 DPRINTF(1, ("%s\n", __func__)); 453 sc = hdl; 454 455 /* Set rate and pan */ 456 vs_set_sr(sc, sc->sc_current.rate); 457 vs_set_po(sc, VS_PANOUT_LR); 458 459 return 0; 460 } 461 462 static int 463 vs_init_input(void *hdl, void *buffer, int size) 464 { 465 struct vs_softc *sc; 466 467 DPRINTF(1, ("%s\n", __func__)); 468 sc = hdl; 469 470 /* Set rate */ 471 vs_set_sr(sc, sc->sc_current.rate); 472 473 return 0; 474 } 475 476 static int 477 vs_start_output(void *hdl, void *block, int blksize, void (*intr)(void *), 478 void *arg) 479 { 480 struct vs_softc *sc; 481 struct vs_dma *vd; 482 struct dmac_channel_stat *chan; 483 484 DPRINTF(2, ("%s: block=%p blksize=%d\n", __func__, block, blksize)); 485 sc = hdl; 486 487 sc->sc_pintr = intr; 488 sc->sc_parg = arg; 489 490 /* Find DMA buffer. */ 491 for (vd = sc->sc_dmas; vd != NULL; vd = vd->vd_next) { 492 if (KVADDR(vd) <= block && block < KVADDR_END(vd) 493 break; 494 } 495 if (vd == NULL) { 496 printf("%s: start_output: bad addr %p\n", 497 device_xname(sc->sc_dev), block); 498 return EINVAL; 499 } 500 501 chan = sc->sc_dma_ch; 502 503 if (vd != sc->sc_prev_vd) { 504 sc->sc_current.xfer = dmac_prepare_xfer(chan, sc->sc_dmat, 505 vd->vd_map, DMAC_OCR_DIR_MTD, 506 (DMAC_SCR_MAC_COUNT_UP | DMAC_SCR_DAC_NO_COUNT), 507 sc->sc_addr + MSM6258_DATA * 2 + 1); 508 sc->sc_prev_vd = vd; 509 } 510 dmac_start_xfer_offset(chan->ch_softc, sc->sc_current.xfer, 511 (int)block - (int)KVADDR(vd), blksize); 512 513 if (sc->sc_active == 0) { 514 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 2); 515 sc->sc_active = 1; 516 } 517 518 return 0; 519 } 520 521 static int 522 vs_start_input(void *hdl, void *block, int blksize, void (*intr)(void *), 523 void *arg) 524 { 525 struct vs_softc *sc; 526 struct vs_dma *vd; 527 struct dmac_channel_stat *chan; 528 529 DPRINTF(2, ("%s: block=%p blksize=%d\n", __func__, block, blksize)); 530 sc = hdl; 531 532 sc->sc_rintr = intr; 533 sc->sc_rarg = arg; 534 535 /* Find DMA buffer. */ 536 for (vd = sc->sc_dmas; vd != NULL; vd = vd->vd_next) { 537 if (KVADDR(vd) <= block && block < KVADDR_END(vd) 538 break; 539 } 540 if (vd == NULL) { 541 printf("%s: start_output: bad addr %p\n", 542 device_xname(sc->sc_dev), block); 543 return EINVAL; 544 } 545 546 chan = sc->sc_dma_ch; 547 548 if (vd != sc->sc_prev_vd) { 549 sc->sc_current.xfer = dmac_prepare_xfer(chan, sc->sc_dmat, 550 vd->vd_map, DMAC_OCR_DIR_DTM, 551 (DMAC_SCR_MAC_COUNT_UP | DMAC_SCR_DAC_NO_COUNT), 552 sc->sc_addr + MSM6258_DATA * 2 + 1); 553 sc->sc_prev_vd = vd; 554 } 555 dmac_start_xfer_offset(chan->ch_softc, sc->sc_current.xfer, 556 (int)block - (int)KVADDR(vd), blksize); 557 558 if (sc->sc_active == 0) { 559 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 4); 560 sc->sc_active = 1; 561 } 562 563 return 0; 564 } 565 566 static int 567 vs_halt_output(void *hdl) 568 { 569 struct vs_softc *sc; 570 571 DPRINTF(1, ("vs_halt_output\n")); 572 sc = hdl; 573 if (sc->sc_active) { 574 /* stop ADPCM play */ 575 dmac_abort_xfer(sc->sc_dma_ch->ch_softc, sc->sc_current.xfer); 576 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 1); 577 sc->sc_active = 0; 578 } 579 580 return 0; 581 } 582 583 static int 584 vs_halt_input(void *hdl) 585 { 586 struct vs_softc *sc; 587 588 DPRINTF(1, ("vs_halt_input\n")); 589 sc = hdl; 590 if (sc->sc_active) { 591 /* stop ADPCM recoding */ 592 dmac_abort_xfer(sc->sc_dma_ch->ch_softc, sc->sc_current.xfer); 593 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 1); 594 sc->sc_active = 0; 595 } 596 597 return 0; 598 } 599 600 static int 601 vs_allocmem(struct vs_softc *sc, size_t size, size_t align, size_t boundary, 602 struct vs_dma *vd) 603 { 604 int error; 605 606 #ifdef DIAGNOSTIC 607 if (size > DMAC_MAXSEGSZ) 608 panic ("vs_allocmem: maximum size exceeded, %d", (int) size); 609 #endif 610 611 vd->vd_size = size; 612 613 error = bus_dmamem_alloc(vd->vd_dmat, vd->vd_size, align, boundary, 614 vd->vd_segs, 615 sizeof (vd->vd_segs) / sizeof (vd->vd_segs[0]), 616 &vd->vd_nsegs, BUS_DMA_WAITOK); 617 if (error) 618 goto out; 619 620 error = bus_dmamem_map(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs, 621 vd->vd_size, &vd->vd_addr, 622 BUS_DMA_WAITOK | BUS_DMA_COHERENT); 623 if (error) 624 goto free; 625 626 error = bus_dmamap_create(vd->vd_dmat, vd->vd_size, 1, DMAC_MAXSEGSZ, 627 0, BUS_DMA_WAITOK, &vd->vd_map); 628 if (error) 629 goto unmap; 630 631 error = bus_dmamap_load(vd->vd_dmat, vd->vd_map, vd->vd_addr, 632 vd->vd_size, NULL, BUS_DMA_WAITOK); 633 if (error) 634 goto destroy; 635 636 return 0; 637 638 destroy: 639 bus_dmamap_destroy(vd->vd_dmat, vd->vd_map); 640 unmap: 641 bus_dmamem_unmap(vd->vd_dmat, vd->vd_addr, vd->vd_size); 642 free: 643 bus_dmamem_free(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs); 644 out: 645 return error; 646 } 647 648 static void 649 vs_freemem(struct vs_dma *vd) 650 { 651 652 bus_dmamap_unload(vd->vd_dmat, vd->vd_map); 653 bus_dmamap_destroy(vd->vd_dmat, vd->vd_map); 654 bus_dmamem_unmap(vd->vd_dmat, vd->vd_addr, vd->vd_size); 655 bus_dmamem_free(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs); 656 } 657 658 static int 659 vs_getdev(void *hdl, struct audio_device *retp) 660 { 661 662 DPRINTF(1, ("vs_getdev\n")); 663 *retp = vs_device; 664 return 0; 665 } 666 667 static int 668 vs_set_port(void *hdl, mixer_ctrl_t *cp) 669 { 670 671 DPRINTF(1, ("vs_set_port\n")); 672 return 0; 673 } 674 675 static int 676 vs_get_port(void *hdl, mixer_ctrl_t *cp) 677 { 678 679 DPRINTF(1, ("vs_get_port\n")); 680 return 0; 681 } 682 683 static int 684 vs_query_devinfo(void *hdl, mixer_devinfo_t *mi) 685 { 686 687 DPRINTF(1, ("vs_query_devinfo\n")); 688 switch (mi->index) { 689 default: 690 return EINVAL; 691 } 692 return 0; 693 } 694 695 static void * 696 vs_allocm(void *hdl, int direction, size_t size) 697 { 698 struct vs_softc *sc; 699 struct vs_dma *vd; 700 int error; 701 702 vd = kmem_alloc(sizeof(*vd), KM_SLEEP); 703 sc = hdl; 704 vd->vd_dmat = sc->sc_dmat; 705 706 error = vs_allocmem(sc, size, 32, 0, vd); 707 if (error) { 708 kmem_free(vd, sizeof(*vd)); 709 return NULL; 710 } 711 vd->vd_next = sc->sc_dmas; 712 sc->sc_dmas = vd; 713 714 return KVADDR(vd); 715 } 716 717 static void 718 vs_freem(void *hdl, void *addr, size_t size) 719 { 720 struct vs_softc *sc; 721 struct vs_dma *p, **pp; 722 723 sc = hdl; 724 for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->vd_next) { 725 if (KVADDR(p) == addr) { 726 vs_freemem(p); 727 *pp = p->vd_next; 728 kmem_free(p, sizeof(*p)); 729 return; 730 } 731 } 732 } 733 734 static size_t 735 vs_round_buffersize(void *hdl, int direction, size_t bufsize) 736 { 737 738 if (bufsize > DMAC_MAXSEGSZ) 739 bufsize = DMAC_MAXSEGSZ; 740 return bufsize; 741 } 742 743 #if 0 744 paddr_t 745 vs_mappage(void *addr, void *mem, off_t off, int prot) 746 { 747 struct vs_softc *sc; 748 struct vs_dma *p; 749 750 if (off < 0) 751 return -1; 752 sc = addr; 753 for (p = sc->sc_dmas; p != NULL && KVADDR(p) != mem; 754 p = p->vd_next) 755 continue; 756 if (p == NULL) { 757 printf("%s: mappage: bad addr %p\n", 758 device_xname(sc->sc_dev), start); 759 return -1; 760 } 761 762 return bus_dmamem_mmap(sc->sc_dmat, p->vd_segs, p->vd_nsegs, 763 off, prot, BUS_DMA_WAITOK); 764 } 765 #endif 766 767 static int 768 vs_get_props(void *hdl) 769 { 770 771 DPRINTF(1, ("vs_get_props\n")); 772 return 0 /* | dependent | half duplex | no mmap */; 773 } 774 775 static void 776 vs_get_locks(void *hdl, kmutex_t **intr, kmutex_t **thread) 777 { 778 struct vs_softc *sc; 779 780 DPRINTF(1, ("vs_get_locks\n")); 781 sc = hdl; 782 *intr = &sc->sc_intr_lock; 783 *thread = &sc->sc_lock; 784 } 785 786 #endif /* NAUDIO > 0 && NVS > 0*/ 787
Indexes created Tue Sep 30 11:09:46 GMT 2025