vs.c revision 1.42
1 /* $NetBSD: vs.c,v 1.42 2017/08/05 05:22:55 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 1.42 2017/08/05 05:22:55 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_trigger_output(void *, void *, void *, int, 82 void (*)(void *), void *, const audio_params_t *); 83 static int vs_trigger_input(void *, void *, void *, int, 84 void (*)(void *), void *, const audio_params_t *); 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 NULL, /* init_output */ 121 NULL, /* init_input */ 122 NULL, /* start_output */ 123 NULL, /* 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 vs_trigger_output, 138 vs_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_active = 0; 225 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 226 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED); 227 228 /* XXX */ 229 bus_space_map(iot, PPI_ADDR, PPI_MAPSIZE, BUS_SPACE_MAP_SHIFTED, 230 &sc->sc_ppi); 231 232 /* Initialize DMAC */ 233 sc->sc_dmat = ia->ia_dmat; 234 sc->sc_dma_ch = dmac_alloc_channel(parent, ia->ia_dma, "vs", 235 ia->ia_dmaintr, vs_dmaintr, sc, 236 ia->ia_dmaintr+1, vs_dmaerrintr, sc); 237 238 aprint_normal_dev(self, "MSM6258V ADPCM voice synthesizer\n"); 239 240 audio_attach_mi(&vs_hw_if, sc, sc->sc_dev); 241 } 242 243 /* 244 * vs interrupt handler 245 */ 246 static int 247 vs_dmaintr(void *hdl) 248 { 249 struct vs_softc *sc; 250 251 DPRINTF(2, ("vs_dmaintr\n")); 252 sc = hdl; 253 254 mutex_spin_enter(&sc->sc_intr_lock); 255 256 if (sc->sc_pintr) { 257 /* start next transfer */ 258 sc->sc_current.dmap += sc->sc_current.blksize; 259 if (sc->sc_current.dmap + sc->sc_current.blksize 260 > sc->sc_current.bufsize) 261 sc->sc_current.dmap -= sc->sc_current.bufsize; 262 dmac_start_xfer_offset(sc->sc_dma_ch->ch_softc, 263 sc->sc_current.xfer, 264 sc->sc_current.dmap, 265 sc->sc_current.blksize); 266 sc->sc_pintr(sc->sc_parg); 267 } else if (sc->sc_rintr) { 268 /* start next transfer */ 269 sc->sc_current.dmap += sc->sc_current.blksize; 270 if (sc->sc_current.dmap + sc->sc_current.blksize 271 > sc->sc_current.bufsize) 272 sc->sc_current.dmap -= sc->sc_current.bufsize; 273 dmac_start_xfer_offset(sc->sc_dma_ch->ch_softc, 274 sc->sc_current.xfer, 275 sc->sc_current.dmap, 276 sc->sc_current.blksize); 277 sc->sc_rintr(sc->sc_rarg); 278 } else { 279 printf("vs_dmaintr: spurious interrupt\n"); 280 } 281 282 mutex_spin_exit(&sc->sc_intr_lock); 283 284 return 1; 285 } 286 287 static int 288 vs_dmaerrintr(void *hdl) 289 { 290 struct vs_softc *sc; 291 292 sc = hdl; 293 DPRINTF(1, ("%s: DMA transfer error.\n", device_xname(sc->sc_dev))); 294 /* XXX */ 295 vs_dmaintr(sc); 296 297 return 1; 298 } 299 300 301 /* 302 * audio MD layer interfaces 303 */ 304 305 static int 306 vs_open(void *hdl, int flags) 307 { 308 struct vs_softc *sc; 309 310 DPRINTF(1, ("vs_open: flags=%d\n", flags)); 311 sc = hdl; 312 sc->sc_pintr = NULL; 313 sc->sc_rintr = NULL; 314 315 return 0; 316 } 317 318 static void 319 vs_close(void *hdl) 320 { 321 322 DPRINTF(1, ("vs_close\n")); 323 } 324 325 static int 326 vs_query_encoding(void *hdl, struct audio_encoding *fp) 327 { 328 329 DPRINTF(1, ("vs_query_encoding\n")); 330 331 if (fp->index == 0) { 332 strcpy(fp->name, AudioEslinear); 333 fp->encoding = AUDIO_ENCODING_SLINEAR; 334 fp->precision = 8; 335 fp->flags = 0; 336 return 0; 337 } 338 if (fp->index == 1) { 339 strcpy(fp->name, AudioEslinear_be); 340 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 341 fp->precision = 16; 342 fp->flags = 0; 343 return 0; 344 } 345 return EINVAL; 346 } 347 348 static int 349 vs_round_sr(u_long rate) 350 { 351 int i; 352 int diff; 353 int nearest; 354 355 diff = rate; 356 nearest = 0; 357 for (i = 0; i < NUM_RATE; i++) { 358 if (rate >= vs_l2r[i].rate) { 359 if (rate - vs_l2r[i].rate < diff) { 360 diff = rate - vs_l2r[i].rate; 361 nearest = i; 362 } 363 } else { 364 if (vs_l2r[i].rate - rate < diff) { 365 diff = vs_l2r[i].rate - rate; 366 nearest = i; 367 } 368 } 369 } 370 if (diff * 100 / rate > 15) 371 return -1; 372 else 373 return nearest; 374 } 375 376 static int 377 vs_set_params(void *hdl, int setmode, int usemode, 378 audio_params_t *play, audio_params_t *rec, 379 stream_filter_list_t *pfil, stream_filter_list_t *rfil) 380 { 381 struct vs_softc *sc; 382 stream_filter_factory_t *pconv; 383 stream_filter_factory_t *rconv; 384 int rate; 385 386 sc = hdl; 387 388 DPRINTF(1, ("vs_set_params: mode=%d enc=%d rate=%d prec=%d ch=%d: ", 389 setmode, play->encoding, play->sample_rate, 390 play->precision, play->channels)); 391 392 /* *play and *rec are identical because !AUDIO_PROP_INDEPENDENT */ 393 394 if (play->channels != 1) { 395 DPRINTF(1, ("channels not matched\n")); 396 return EINVAL; 397 } 398 399 rate = vs_round_sr(play->sample_rate); 400 if (rate < 0) { 401 DPRINTF(1, ("rate not matched\n")); 402 return EINVAL; 403 } 404 405 if (play->precision == 8 && play->encoding == AUDIO_ENCODING_SLINEAR) { 406 pconv = msm6258_linear8_to_adpcm; 407 rconv = msm6258_adpcm_to_linear8; 408 } else if (play->precision == 16 && 409 play->encoding == AUDIO_ENCODING_SLINEAR_BE) { 410 pconv = msm6258_slinear16_to_adpcm; 411 rconv = msm6258_adpcm_to_slinear16; 412 } else { 413 DPRINTF(1, ("prec/enc not matched\n")); 414 return EINVAL; 415 } 416 417 sc->sc_current.prate = rate; 418 sc->sc_current.rrate = rate; 419 420 /* pfil and rfil are independent even if !AUDIO_PROP_INDEPENDENT */ 421 422 if ((setmode & AUMODE_PLAY) != 0) { 423 pfil->append(pfil, null_filter, play); 424 play->encoding = AUDIO_ENCODING_ADPCM; 425 play->validbits = 4; 426 play->precision = 4; 427 pfil->append(pfil, pconv, play); 428 } 429 if ((setmode & AUMODE_RECORD) != 0) { 430 rfil->append(rfil, null_filter, rec); 431 rec->encoding = AUDIO_ENCODING_ADPCM; 432 rec->validbits = 4; 433 rec->precision = 4; 434 rfil->append(rfil, rconv, rec); 435 } 436 437 DPRINTF(1, ("accepted\n")); 438 return 0; 439 } 440 441 static void 442 vs_set_sr(struct vs_softc *sc, int rate) 443 { 444 445 DPRINTF(1, ("setting sample rate to %d, %d\n", 446 rate, (int)vs_l2r[rate].rate)); 447 bus_space_write_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC, 448 (bus_space_read_1 (sc->sc_iot, sc->sc_ppi, 449 PPI_PORTC) & 0xf0) 450 | vs_l2r[rate].den); 451 adpcm_chgclk(vs_l2r[rate].clk); 452 } 453 454 static inline void 455 vs_set_po(struct vs_softc *sc, u_long po) 456 { 457 bus_space_write_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC, 458 (bus_space_read_1(sc->sc_iot, sc->sc_ppi, PPI_PORTC) 459 & 0xfc) | po); 460 } 461 462 static int 463 vs_trigger_output(void *hdl, void *start, void *end, int bsize, 464 void (*intr)(void *), void *arg, 465 const audio_params_t *p) 466 { 467 struct vs_softc *sc; 468 struct vs_dma *vd; 469 struct dmac_dma_xfer *xf; 470 struct dmac_channel_stat *chan; 471 472 DPRINTF(2, ("vs_trigger_output: start=%p, bsize=%d, intr=%p, arg=%p\n", 473 start, bsize, intr, arg)); 474 sc = hdl; 475 chan = sc->sc_dma_ch; 476 sc->sc_pintr = intr; 477 sc->sc_parg = arg; 478 sc->sc_current.blksize = bsize; 479 sc->sc_current.bufsize = (char *)end - (char *)start; 480 sc->sc_current.dmap = 0; 481 482 /* Find DMA buffer. */ 483 for (vd = sc->sc_dmas; vd != NULL && KVADDR(vd) != start; 484 vd = vd->vd_next) 485 continue; 486 if (vd == NULL) { 487 printf("%s: trigger_output: bad addr %p\n", 488 device_xname(sc->sc_dev), start); 489 return EINVAL; 490 } 491 492 vs_set_sr(sc, sc->sc_current.prate); 493 vs_set_po(sc, VS_PANOUT_LR); 494 495 xf = dmac_alloc_xfer(chan, sc->sc_dmat, vd->vd_map); 496 sc->sc_current.xfer = xf; 497 chan->ch_dcr = (DMAC_DCR_XRM_CSWOH | DMAC_DCR_OTYP_EASYNC | 498 DMAC_DCR_OPS_8BIT); 499 chan->ch_ocr = DMAC_OCR_REQG_EXTERNAL; 500 xf->dx_ocr = DMAC_OCR_DIR_MTD; 501 xf->dx_scr = DMAC_SCR_MAC_COUNT_UP | DMAC_SCR_DAC_NO_COUNT; 502 xf->dx_device = sc->sc_addr + MSM6258_DATA*2 + 1; 503 504 dmac_load_xfer(chan->ch_softc, xf); 505 dmac_start_xfer_offset(chan->ch_softc, xf, 0, sc->sc_current.blksize); 506 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 2); 507 sc->sc_active = 1; 508 509 return 0; 510 } 511 512 static int 513 vs_trigger_input(void *hdl, void *start, void *end, int bsize, 514 void (*intr)(void *), void *arg, 515 const audio_params_t *p) 516 { 517 struct vs_softc *sc; 518 struct vs_dma *vd; 519 struct dmac_dma_xfer *xf; 520 struct dmac_channel_stat *chan; 521 522 DPRINTF(2, ("vs_trigger_input: start=%p, bsize=%d, intr=%p, arg=%p\n", 523 start, bsize, intr, arg)); 524 sc = hdl; 525 chan = sc->sc_dma_ch; 526 sc->sc_rintr = intr; 527 sc->sc_rarg = arg; 528 sc->sc_current.blksize = bsize; 529 sc->sc_current.bufsize = (char *)end - (char *)start; 530 sc->sc_current.dmap = 0; 531 532 /* Find DMA buffer. */ 533 for (vd = sc->sc_dmas; vd != NULL && KVADDR(vd) != start; 534 vd = vd->vd_next) 535 continue; 536 if (vd == NULL) { 537 printf("%s: trigger_output: bad addr %p\n", 538 device_xname(sc->sc_dev), start); 539 return EINVAL; 540 } 541 542 vs_set_sr(sc, sc->sc_current.rrate); 543 xf = dmac_alloc_xfer(chan, sc->sc_dmat, vd->vd_map); 544 sc->sc_current.xfer = xf; 545 chan->ch_dcr = (DMAC_DCR_XRM_CSWOH | DMAC_DCR_OTYP_EASYNC | 546 DMAC_DCR_OPS_8BIT); 547 chan->ch_ocr = DMAC_OCR_REQG_EXTERNAL; 548 xf->dx_ocr = DMAC_OCR_DIR_DTM; 549 xf->dx_scr = DMAC_SCR_MAC_COUNT_UP | DMAC_SCR_DAC_NO_COUNT; 550 xf->dx_device = sc->sc_addr + MSM6258_DATA*2 + 1; 551 552 dmac_load_xfer(chan->ch_softc, xf); 553 dmac_start_xfer_offset(chan->ch_softc, xf, 0, sc->sc_current.blksize); 554 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 4); 555 sc->sc_active = 1; 556 557 return 0; 558 } 559 560 static int 561 vs_halt_output(void *hdl) 562 { 563 struct vs_softc *sc; 564 565 DPRINTF(1, ("vs_halt_output\n")); 566 sc = hdl; 567 if (sc->sc_active) { 568 /* stop ADPCM play */ 569 dmac_abort_xfer(sc->sc_dma_ch->ch_softc, sc->sc_current.xfer); 570 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 1); 571 sc->sc_active = 0; 572 } 573 574 return 0; 575 } 576 577 static int 578 vs_halt_input(void *hdl) 579 { 580 struct vs_softc *sc; 581 582 DPRINTF(1, ("vs_halt_input\n")); 583 sc = hdl; 584 if (sc->sc_active) { 585 /* stop ADPCM recoding */ 586 dmac_abort_xfer(sc->sc_dma_ch->ch_softc, sc->sc_current.xfer); 587 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSM6258_STAT, 1); 588 sc->sc_active = 0; 589 } 590 591 return 0; 592 } 593 594 static int 595 vs_allocmem(struct vs_softc *sc, size_t size, size_t align, size_t boundary, 596 struct vs_dma *vd) 597 { 598 int error; 599 600 #ifdef DIAGNOSTIC 601 if (size > DMAC_MAXSEGSZ) 602 panic ("vs_allocmem: maximum size exceeded, %d", (int) size); 603 #endif 604 605 vd->vd_size = size; 606 607 error = bus_dmamem_alloc(vd->vd_dmat, vd->vd_size, align, boundary, 608 vd->vd_segs, 609 sizeof (vd->vd_segs) / sizeof (vd->vd_segs[0]), 610 &vd->vd_nsegs, BUS_DMA_WAITOK); 611 if (error) 612 goto out; 613 614 error = bus_dmamem_map(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs, 615 vd->vd_size, &vd->vd_addr, 616 BUS_DMA_WAITOK | BUS_DMA_COHERENT); 617 if (error) 618 goto free; 619 620 error = bus_dmamap_create(vd->vd_dmat, vd->vd_size, 1, DMAC_MAXSEGSZ, 621 0, BUS_DMA_WAITOK, &vd->vd_map); 622 if (error) 623 goto unmap; 624 625 error = bus_dmamap_load(vd->vd_dmat, vd->vd_map, vd->vd_addr, 626 vd->vd_size, NULL, BUS_DMA_WAITOK); 627 if (error) 628 goto destroy; 629 630 return 0; 631 632 destroy: 633 bus_dmamap_destroy(vd->vd_dmat, vd->vd_map); 634 unmap: 635 bus_dmamem_unmap(vd->vd_dmat, vd->vd_addr, vd->vd_size); 636 free: 637 bus_dmamem_free(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs); 638 out: 639 return error; 640 } 641 642 static void 643 vs_freemem(struct vs_dma *vd) 644 { 645 646 bus_dmamap_unload(vd->vd_dmat, vd->vd_map); 647 bus_dmamap_destroy(vd->vd_dmat, vd->vd_map); 648 bus_dmamem_unmap(vd->vd_dmat, vd->vd_addr, vd->vd_size); 649 bus_dmamem_free(vd->vd_dmat, vd->vd_segs, vd->vd_nsegs); 650 } 651 652 static int 653 vs_getdev(void *hdl, struct audio_device *retp) 654 { 655 656 DPRINTF(1, ("vs_getdev\n")); 657 *retp = vs_device; 658 return 0; 659 } 660 661 static int 662 vs_set_port(void *hdl, mixer_ctrl_t *cp) 663 { 664 665 DPRINTF(1, ("vs_set_port\n")); 666 return 0; 667 } 668 669 static int 670 vs_get_port(void *hdl, mixer_ctrl_t *cp) 671 { 672 673 DPRINTF(1, ("vs_get_port\n")); 674 return 0; 675 } 676 677 static int 678 vs_query_devinfo(void *hdl, mixer_devinfo_t *mi) 679 { 680 681 DPRINTF(1, ("vs_query_devinfo\n")); 682 switch (mi->index) { 683 default: 684 return EINVAL; 685 } 686 return 0; 687 } 688 689 static void * 690 vs_allocm(void *hdl, int direction, size_t size) 691 { 692 struct vs_softc *sc; 693 struct vs_dma *vd; 694 int error; 695 696 vd = kmem_alloc(sizeof(*vd), KM_SLEEP); 697 sc = hdl; 698 vd->vd_dmat = sc->sc_dmat; 699 700 error = vs_allocmem(sc, size, 32, 0, vd); 701 if (error) { 702 kmem_free(vd, sizeof(*vd)); 703 return NULL; 704 } 705 vd->vd_next = sc->sc_dmas; 706 sc->sc_dmas = vd; 707 708 return KVADDR(vd); 709 } 710 711 static void 712 vs_freem(void *hdl, void *addr, size_t size) 713 { 714 struct vs_softc *sc; 715 struct vs_dma *p, **pp; 716 717 sc = hdl; 718 for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->vd_next) { 719 if (KVADDR(p) == addr) { 720 vs_freemem(p); 721 *pp = p->vd_next; 722 kmem_free(p, sizeof(*p)); 723 return; 724 } 725 } 726 } 727 728 static size_t 729 vs_round_buffersize(void *hdl, int direction, size_t bufsize) 730 { 731 732 if (bufsize > DMAC_MAXSEGSZ) 733 bufsize = DMAC_MAXSEGSZ; 734 return bufsize; 735 } 736 737 #if 0 738 paddr_t 739 vs_mappage(void *addr, void *mem, off_t off, int prot) 740 { 741 struct vs_softc *sc; 742 struct vs_dma *p; 743 744 if (off < 0) 745 return -1; 746 sc = addr; 747 for (p = sc->sc_dmas; p != NULL && KVADDR(p) != mem; 748 p = p->vd_next) 749 continue; 750 if (p == NULL) { 751 printf("%s: mappage: bad addr %p\n", 752 device_xname(sc->sc_dev), start); 753 return -1; 754 } 755 756 return bus_dmamem_mmap(sc->sc_dmat, p->vd_segs, p->vd_nsegs, 757 off, prot, BUS_DMA_WAITOK); 758 } 759 #endif 760 761 static int 762 vs_get_props(void *hdl) 763 { 764 765 DPRINTF(1, ("vs_get_props\n")); 766 return 0 /* | dependent | half duplex | no mmap */; 767 } 768 769 static void 770 vs_get_locks(void *hdl, kmutex_t **intr, kmutex_t **thread) 771 { 772 struct vs_softc *sc; 773 774 DPRINTF(1, ("vs_get_locks\n")); 775 sc = hdl; 776 *intr = &sc->sc_intr_lock; 777 *thread = &sc->sc_lock; 778 } 779 780 #endif /* NAUDIO > 0 && NVS > 0*/ 781
Indexes created Tue Sep 30 20:09:53 GMT 2025