repulse.c revision 1.10
1 /* $NetBSD: repulse.c,v 1.10 2004/10/29 12:57:16 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ignatios Souvatzis. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: repulse.c,v 1.10 2004/10/29 12:57:16 yamt Exp $"); 41 42 #include <sys/types.h> 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/fcntl.h> /* FREAD */ 48 49 #include <machine/bus.h> 50 51 #include <sys/audioio.h> 52 #include <dev/audio_if.h> 53 #include <dev/mulaw.h> 54 55 #include <dev/ic/ac97reg.h> 56 #include <dev/ic/ac97var.h> 57 58 #include <amiga/dev/zbusvar.h> 59 #include <amiga/amiga/isr.h> 60 61 #include <amiga/dev/repulse_firmware.h> 62 63 #ifndef vu_int8_t 64 #define vu_int8_t volatile u_int8_t 65 #endif 66 #ifndef vu_int16_t 67 #define vu_int16_t volatile u_int16_t 68 #endif 69 #ifndef vu_int32_t 70 #define vu_int32_t volatile u_int32_t 71 #endif 72 73 /* ac97 attachment functions */ 74 75 int repac_attach(void *, struct ac97_codec_if *); 76 int repac_read(void *, u_int8_t, u_int16_t *); 77 int repac_write(void *, u_int8_t, u_int16_t); 78 int repac_reset(void *); 79 enum ac97_host_flag repac_flags(void *); 80 81 /* audio attachment functions */ 82 83 int rep_open(void *, int); 84 void rep_close(void *); 85 int rep_getdev(void *, struct audio_device *); 86 int rep_get_props(void *); 87 int rep_halt_output(void *); 88 int rep_halt_input(void *); 89 int rep_query_encoding(void *, struct audio_encoding *); 90 int rep_set_params(void *, int, int, struct audio_params *, 91 struct audio_params *); 92 int rep_round_blocksize(void *, int); 93 int rep_set_port(void *, mixer_ctrl_t *); 94 int rep_get_port(void *, mixer_ctrl_t *); 95 int rep_query_devinfo(void *, mixer_devinfo_t *); 96 size_t rep_round_buffersize(void *, int, size_t); 97 98 int rep_start_input(void *, void *, int, void (*)(void *), void *); 99 int rep_start_output(void *, void *, int, void (*)(void *), void *); 100 101 int rep_intr(void *tag); 102 103 104 /* audio attachment */ 105 106 const struct audio_hw_if rep_hw_if = { 107 rep_open, 108 rep_close, 109 /* drain */ 0, 110 rep_query_encoding, 111 rep_set_params, 112 rep_round_blocksize, 113 /* commit_setting */ 0, 114 /* init_output */ 0, 115 /* init_input */ 0, 116 rep_start_output, 117 rep_start_input, 118 rep_halt_output, 119 rep_halt_input, 120 /* speaker_ctl */ 0, 121 rep_getdev, 122 /* getfd */ 0, 123 rep_set_port, 124 rep_get_port, 125 rep_query_devinfo, 126 /* allocm */ 0, 127 /* freem */ 0, 128 rep_round_buffersize, 129 /* mappage */ 0, 130 rep_get_props, 131 /* trigger_output */ 0, 132 /* trigger_input */ 0, 133 /* dev_ioctl */ 0, 134 }; 135 136 /* hardware registers */ 137 138 struct repulse_hw { 139 vu_int16_t rhw_status; 140 vu_int16_t rhw_fifostatus; /* 0xrrrrpppp0000flag */ 141 vu_int16_t rhw_reg_address; 142 vu_int16_t rhw_reg_data; 143 /* 0x08 */ 144 vu_int16_t rhw_fifo_lh; 145 vu_int16_t rhw_fifo_ll; 146 vu_int16_t rhw_fifo_rh; 147 vu_int16_t rhw_fifo_rl; 148 /* 0x10 */ 149 vu_int16_t rhw_fifo_pack; 150 vu_int16_t rhw_play_fifosz; 151 vu_int32_t rhw_spdifin_stat; 152 #define rhw_spdifout_stat rhw_spdifin_stat; 153 154 /* 0x18 */ 155 vu_int16_t rhw_capt_fifosz; 156 vu_int16_t rhw_version; 157 vu_int16_t rhw_dummy1; 158 vu_int8_t rhw_firmwareload; 159 /* 0x1F */ 160 vu_int8_t rhw_dummy2[66 - 31]; 161 /* 0x42 */ 162 vu_int16_t rhw_reset; 163 } /* __attribute__((packed)) */; 164 165 #define REPSTATUS_PLAY 0x0001 166 #define REPSTATUS_RECORD 0x0002 167 #define REPSTATUS_PLAYFIFORST 0x0004 168 #define REPSTATUS_RECFIFORST 0x0008 169 170 #define REPSTATUS_REGSENDBUSY 0x0010 171 #define REPSTATUS_LOOPBACK 0x0020 172 #define REPSTATUS_ENSPDIFIN 0x0040 173 #define REPSTATUS_ENSPDIFOUT 0x0080 174 175 #define REPSTATUS_CODECRESET 0x0200 176 #define REPSTATUS_SPDIFOUT24 0x0400 177 #define REPSTATUS_SPDIFIN24 0x0800 178 179 #define REPSTATUS_RECIRQENABLE 0x1000 180 #define REPSTATUS_RECIRQACK 0x2000 181 #define REPSTATUS_PLAYIRQENABLE 0x4000 182 #define REPSTATUS_PLAYIRQACK 0x8000 183 184 #define REPFIFO_PLAYFIFOFULL 0x0001 185 #define REPFIFO_PLAYFIFOEMPTY 0x0002 186 #define REPFIFO_RECFIFOFULL 0x0004 187 #define REPFIFO_RECFIFOEMPTY 0x0008 188 #define REPFIFO_PLAYFIFOGAUGE(x) ((x << 4) & 0xf000) 189 #define REPFIFO_RECFIFOGAUGE(x) (x & 0xf000) 190 191 /* ac97 data stream transfer functions */ 192 void rep_read_16_stereo(struct repulse_hw *, u_int8_t *, int, unsigned); 193 void rep_read_16_mono(struct repulse_hw *, u_int8_t *, int, unsigned); 194 void rep_write_16_stereo(struct repulse_hw *, u_int8_t *, int, unsigned); 195 void rep_write_16_mono(struct repulse_hw *, u_int8_t *, int, unsigned); 196 void rep_read_8_stereo(struct repulse_hw *, u_int8_t *, int, unsigned); 197 void rep_read_8_mono(struct repulse_hw *, u_int8_t *, int, unsigned); 198 void rep_write_8_stereo(struct repulse_hw *, u_int8_t *, int, unsigned); 199 void rep_write_8_mono(struct repulse_hw *, u_int8_t *, int, unsigned); 200 201 /* AmigaDOS Delay() ticks */ 202 203 #define USECPERTICK (1000000/50) 204 205 /* NetBSD device attachment */ 206 207 struct repulse_softc { 208 struct device sc_dev; 209 struct isr sc_isr; 210 struct ac97_host_if sc_achost; 211 struct ac97_codec_if *sc_codec_if; 212 213 struct repulse_hw *sc_boardp; 214 215 void (*sc_captmore)(void *); 216 void *sc_captarg; 217 218 void (*sc_captfun)(struct repulse_hw *, u_int8_t *, int, unsigned); 219 void *sc_captbuf; 220 int sc_captscale; 221 int sc_captbufsz; 222 unsigned sc_captflags; 223 224 225 void (*sc_playmore)(void *); 226 void *sc_playarg; 227 void (*sc_playfun)(struct repulse_hw *, u_int8_t *, int, unsigned); 228 int sc_playscale; 229 unsigned sc_playflags; 230 231 }; 232 233 int repulse_match (struct device *, struct cfdata *, void *); 234 void repulse_attach (struct device *, struct device *, void *); 235 236 CFATTACH_DECL(repulse, sizeof(struct repulse_softc), 237 repulse_match, repulse_attach, NULL, NULL); 238 239 int 240 repulse_match(struct device *parent, struct cfdata *cfp, void *aux) { 241 struct zbus_args *zap; 242 243 zap = aux; 244 245 if (zap->manid != 0x4144) 246 return (0); 247 248 if (zap->prodid != 0) 249 return (0); 250 251 return (1); 252 } 253 254 void 255 repulse_attach(struct device *parent, struct device *self, void *aux) { 256 struct repulse_softc *sc; 257 struct zbus_args *zap; 258 struct repulse_hw *bp; 259 struct mixer_ctrl ctl; 260 u_int8_t *fwp; 261 int needs_firmware; 262 int i; 263 264 u_int16_t a; 265 266 sc = (struct repulse_softc *)self; 267 zap = aux; 268 bp = (struct repulse_hw *)zap->va; 269 sc->sc_boardp = bp; 270 271 needs_firmware = 0; 272 if (bp->rhw_fifostatus & 0x00f0) 273 needs_firmware = 1; 274 else { 275 bp->rhw_status = 0x000c; 276 if (bp->rhw_status != 0 || bp->rhw_fifostatus != 0x0f0a) 277 needs_firmware = 1; 278 } 279 280 printf(": "); 281 if (needs_firmware) { 282 printf("loading "); 283 bp->rhw_reset = 0; 284 285 delay(1 * USECPERTICK); 286 287 for (fwp = (u_int8_t *)repulse_firmware; 288 fwp < (repulse_firmware_size + 289 (u_int8_t *)repulse_firmware); fwp++) 290 bp->rhw_firmwareload = *fwp; 291 292 delay(1 * USECPERTICK); 293 294 if (bp->rhw_fifostatus & 0x00f0) 295 goto Initerr; 296 297 a = /* bp->rhw_status; 298 a |= */ REPSTATUS_CODECRESET; 299 bp->rhw_status = a; 300 301 a = bp->rhw_status; 302 if ((a & REPSTATUS_CODECRESET) == 0) 303 goto Initerr; 304 305 (void)bp->rhw_status; 306 (void)bp->rhw_status; 307 (void)bp->rhw_status; 308 a = bp->rhw_status; 309 a &= ~REPSTATUS_CODECRESET; 310 bp->rhw_status = a; 311 } 312 313 printf("firmware version 0x%x\n", bp->rhw_version); 314 315 sc->sc_achost.arg = sc; 316 317 sc->sc_achost.reset = repac_reset; 318 sc->sc_achost.read = repac_read; 319 sc->sc_achost.write = repac_write; 320 sc->sc_achost.attach = repac_attach; 321 sc->sc_achost.flags = 0; 322 323 if (ac97_attach(&sc->sc_achost)) { 324 printf("%s: error attaching codec\n", self->dv_xname); 325 return; 326 } 327 328 #ifdef DIAGNOSTIC 329 /* 330 * Print a warning if the codec doesn't support hardware variable 331 * rate audio. As the initial incarnations of the Repulse board 332 * are AC'97 2.1, it is epxected that we'll always have VRA. 333 */ 334 /* 335 * XXX this should be a panic(). OTOH, audio codec speed is not 336 * important enough to do this. 337 */ 338 a = sc->sc_codec_if->vtbl->get_extcaps(sc->sc_codec_if); 339 if (!(a & AC97_EXT_AUDIO_VRA)) { 340 printf("%s: warning: codec doesn't support " 341 "hardware AC'97 2.0 Variable Rate Audio\n", 342 sc->sc_dev.dv_xname); 343 } 344 #endif 345 346 /* 347 * from auvia.c: disable mutes ... 348 * XXX maybe this should happen in MI code? 349 */ 350 351 for (i = 0; i < 5; i++) { 352 static struct { 353 char *class, *device; 354 } d[] = { 355 { AudioCoutputs, AudioNmaster}, 356 { AudioCinputs, AudioNdac}, 357 { AudioCinputs, AudioNcd}, 358 { AudioCinputs, AudioNline}, 359 { AudioCrecord, AudioNvolume}, 360 }; 361 362 ctl.type = AUDIO_MIXER_ENUM; 363 ctl.un.ord = 0; 364 ctl.dev = sc->sc_codec_if->vtbl->get_portnum_by_name( 365 sc->sc_codec_if, d[i].class, d[i].device, AudioNmute); 366 rep_set_port(sc, &ctl); 367 } 368 369 sc->sc_isr.isr_ipl = 2; 370 sc->sc_isr.isr_arg = sc; 371 sc->sc_isr.isr_intr = rep_intr; 372 add_isr(&sc->sc_isr); 373 374 audio_attach_mi(&rep_hw_if, sc, &sc->sc_dev); 375 376 return; 377 378 Initerr: 379 printf("\n%s: firmware not successfully loaded\n", self->dv_xname); 380 return; 381 382 } 383 384 int repac_reset(void *arg) { 385 struct repulse_softc *sc = arg; 386 struct repulse_hw *bp = sc->sc_boardp; 387 388 u_int16_t a; 389 390 a = bp->rhw_status; 391 a |= REPSTATUS_CODECRESET; 392 bp->rhw_status = a; 393 394 a = bp->rhw_status; 395 #ifdef DIAGNOSTIC 396 if ((a & REPSTATUS_CODECRESET) == 0) 397 panic("%s: cannot set reset bit", sc->sc_dev.dv_xname); 398 #endif 399 400 a = bp->rhw_status; 401 a = bp->rhw_status; 402 a = bp->rhw_status; 403 a = bp->rhw_status; 404 a &= ~REPSTATUS_CODECRESET; 405 bp->rhw_status = a; 406 return 0; 407 } 408 409 int repac_read(void *arg, u_int8_t reg, u_int16_t *valuep) { 410 struct repulse_softc *sc = arg; 411 struct repulse_hw *bp = sc->sc_boardp; 412 413 while (bp->rhw_status & REPSTATUS_REGSENDBUSY); 414 bp->rhw_reg_address = (reg & 0x7F) | 0x80; 415 416 while (bp->rhw_status & REPSTATUS_REGSENDBUSY); 417 418 *valuep = bp->rhw_reg_data; 419 420 return 0; 421 } 422 423 int repac_write(void *arg, u_int8_t reg, u_int16_t value) { 424 struct repulse_softc *sc = arg; 425 struct repulse_hw *bp = sc->sc_boardp; 426 427 bp->rhw_reg_data = value; 428 bp->rhw_reg_address = reg & 0x7F; 429 430 while (bp->rhw_status & REPSTATUS_REGSENDBUSY); 431 432 return 0; 433 } 434 435 int repac_attach(void *arg, struct ac97_codec_if *acip){ 436 437 struct repulse_softc *sc; 438 439 sc = arg; 440 sc->sc_codec_if = acip; 441 442 return 0; 443 } 444 445 /* audio(9) support stuff which is not ac97-constant */ 446 447 int 448 rep_open(void *arg, int flags) 449 { 450 return 0; 451 } 452 453 void 454 rep_close(void *arg) 455 { 456 struct repulse_softc *sc = arg; 457 458 rep_halt_output(sc); 459 rep_halt_input(sc); 460 } 461 462 int 463 rep_getdev(void *arg, struct audio_device *retp) 464 { 465 struct repulse_softc *sc = arg; 466 struct repulse_hw *bp = sc->sc_boardp; 467 468 if (retp) { 469 strncpy(retp->name, "Repulse", sizeof(retp->name)); 470 snprintf(retp->version, sizeof(retp->version), "0x%x", 471 bp->rhw_version); 472 strncpy(retp->config, "", sizeof(retp->config)); 473 } 474 475 return 0; 476 } 477 478 int 479 rep_get_props(void *v) 480 { 481 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX); 482 } 483 484 int 485 rep_halt_output(void *arg) 486 { 487 struct repulse_softc *sc = arg; 488 struct repulse_hw *bp = sc->sc_boardp; 489 490 bp->rhw_status &= ~(REPSTATUS_PLAYIRQENABLE|REPSTATUS_PLAY); 491 492 493 return 0; 494 } 495 496 int 497 rep_halt_input(void *arg) 498 { 499 struct repulse_softc *sc = arg; 500 struct repulse_hw *bp = sc->sc_boardp; 501 502 bp->rhw_status &= ~(REPSTATUS_RECIRQENABLE|REPSTATUS_RECORD); 503 504 return 0; 505 } 506 507 /* 508 * Encoding support. 509 * 510 * TODO: add 24bit and 32bit modes here and in setparams. 511 */ 512 513 const struct repulse_encoding_query { 514 const char *name; 515 int encoding, precision, flags; 516 } rep_encoding_queries[] = { 517 { AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0}, 518 { AudioEmulaw, AUDIO_ENCODING_ULAW, 8, AUDIO_ENCODINGFLAG_EMULATED}, 519 { AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED}, 520 { AudioEslinear, AUDIO_ENCODING_SLINEAR, 8, 0}, 521 { AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0}, 522 { AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16, 0}, 523 { AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16, 0}, 524 { AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16, 0}, 525 }; 526 527 int 528 rep_query_encoding(void *arg, struct audio_encoding *fp) 529 { 530 int i; 531 const struct repulse_encoding_query *p; 532 533 i = fp->index; 534 535 if (i >= sizeof(rep_encoding_queries) / 536 sizeof(struct repulse_encoding_query)) 537 return (EINVAL); 538 539 p = &rep_encoding_queries[i]; 540 541 strncpy (fp->name, p->name, sizeof(fp->name)); 542 fp->encoding = p->encoding; 543 fp->precision = p->precision; 544 fp->flags = p->flags; 545 546 return (0); 547 } 548 549 /* 550 * XXX the following three functions need to be enhanced for the FPGA s/pdif 551 * mode. Generic ac97 versions for now. 552 */ 553 554 int 555 rep_get_port(void *arg, mixer_ctrl_t *cp) 556 { 557 struct repulse_softc *sc = arg; 558 559 return (sc->sc_codec_if->vtbl->mixer_get_port(sc->sc_codec_if, cp)); 560 } 561 562 int 563 rep_set_port(void *arg, mixer_ctrl_t *cp) 564 { 565 struct repulse_softc *sc = arg; 566 567 return (sc->sc_codec_if->vtbl->mixer_set_port(sc->sc_codec_if, cp)); 568 } 569 570 int 571 rep_query_devinfo (void *arg, mixer_devinfo_t *dip) 572 { 573 struct repulse_softc *sc = arg; 574 575 return (sc->sc_codec_if->vtbl->query_devinfo(sc->sc_codec_if, dip)); 576 } 577 578 int 579 rep_round_blocksize(void *arg, int blk) 580 { 581 int b1; 582 583 b1 = (blk & -32); 584 585 if (b1 > 65536 / 2 / 2 /* channels */ / 4 /* bytes per channel */) 586 b1 = 65536 / 2 / 2 / 4; 587 return (b1); 588 } 589 590 size_t 591 rep_round_buffersize(void *arg, int direction, size_t size) 592 { 593 return size; 594 } 595 596 597 int 598 rep_set_params(void *addr, int setmode, int usemode, 599 struct audio_params *play, struct audio_params *rec) 600 { 601 struct repulse_softc *sc = addr; 602 struct audio_params *p; 603 int mode, reg; 604 unsigned flags; 605 u_int16_t a; 606 607 /* for mode in (RECORD, PLAY) */ 608 for (mode = AUMODE_RECORD; mode != -1; 609 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 610 611 if ((setmode & mode) == 0) 612 continue; 613 614 p = mode == AUMODE_PLAY ? play : rec; 615 616 /* TODO XXX we can do upto 32bit, 96000 */ 617 if (p->sample_rate < 4000 || p->sample_rate > 48000 || 618 (p->precision != 8 && p->precision != 16) || 619 (p->channels != 1 && p->channels != 2)) 620 return (EINVAL); 621 622 reg = mode == AUMODE_PLAY ? 623 AC97_REG_PCM_FRONT_DAC_RATE : AC97_REG_PCM_LR_ADC_RATE; 624 625 repac_write(sc, reg, (u_int16_t) p->sample_rate); 626 repac_read(sc, reg, &a); 627 p->sample_rate = a; 628 629 if (mode == AUMODE_PLAY) 630 sc->sc_playscale = p->channels * p->precision / 8; 631 else 632 sc->sc_captscale = p->channels * p->precision / 8; 633 634 p->factor = 1; 635 p->sw_code = 0; 636 637 /* everything else is software, alas... */ 638 /* XXX TBD signed/unsigned, *law, etc */ 639 640 flags = 0; 641 if (p->encoding == AUDIO_ENCODING_ULINEAR_LE || 642 p->encoding == AUDIO_ENCODING_ULINEAR_BE || 643 p->encoding == AUDIO_ENCODING_ULINEAR) 644 flags |= 1; 645 646 if (p->encoding == AUDIO_ENCODING_SLINEAR_LE || 647 p->encoding == AUDIO_ENCODING_ULINEAR_LE) 648 flags |= 2; 649 650 if (mode == AUMODE_PLAY) { 651 sc->sc_playflags = flags; 652 if (p->encoding == AUDIO_ENCODING_ULAW) { 653 sc->sc_playfun = p->channels == 1 ? 654 rep_write_16_mono : 655 rep_write_16_stereo; 656 sc->sc_playflags = 0; 657 sc->sc_playscale = p->channels * 2; 658 p->sw_code = mulaw_to_slinear16_be; 659 p->factor = 2; 660 } else 661 if (p->encoding == AUDIO_ENCODING_ALAW) { 662 sc->sc_playfun = p->channels == 1 ? 663 rep_write_16_mono : 664 rep_write_16_stereo; 665 sc->sc_playflags = 0; 666 sc->sc_playscale = p->channels * 2; 667 p->sw_code = alaw_to_slinear16_be; 668 p->factor = 2; 669 } else 670 if (p->precision == 8 && p->channels == 1) 671 sc->sc_playfun = rep_write_8_mono; 672 else if (p->precision == 8 && p->channels == 2) 673 sc->sc_playfun = rep_write_8_stereo; 674 else if (p->precision == 16 && p->channels == 1) 675 sc->sc_playfun = rep_write_16_mono; 676 else if (p->precision == 16 && p->channels == 2) 677 sc->sc_playfun = rep_write_16_stereo; 678 } else { 679 sc->sc_captflags = flags; 680 if (p->encoding == AUDIO_ENCODING_ULAW) { 681 sc->sc_captfun = p->channels == 1 ? 682 rep_read_8_mono : 683 rep_read_8_stereo; 684 sc->sc_captflags = 0; 685 p->sw_code = slinear8_to_mulaw; 686 p->factor = 1; 687 } else 688 if (p->encoding == AUDIO_ENCODING_ALAW) { 689 sc->sc_captfun = p->channels == 1 ? 690 rep_read_8_mono : 691 rep_read_8_stereo; 692 sc->sc_captflags = 0; 693 p->sw_code = slinear8_to_alaw; 694 p->factor = 1; 695 } else 696 if (p->precision == 8 && p->channels == 1) 697 sc->sc_captfun = rep_read_8_mono; 698 else if (p->precision == 8 && p->channels == 2) 699 sc->sc_captfun = rep_read_8_stereo; 700 else if (p->precision == 16 && p->channels == 1) 701 sc->sc_captfun = rep_read_16_mono; 702 else if (p->precision == 16 && p->channels == 2) 703 sc->sc_captfun = rep_read_16_stereo; 704 } 705 /* TBD: mu-law, A-law */ 706 } 707 return 0; 708 } 709 710 void 711 rep_write_8_mono(struct repulse_hw *bp, u_int8_t *p, int length, 712 unsigned flags) 713 { 714 u_int16_t sample; 715 u_int16_t xor; 716 717 xor = flags & 1 ? 0x8000 : 0; 718 719 bp->rhw_fifo_pack = 0; 720 721 while (length-- > 0) { 722 sample = ((*p++) << 8) ^ xor; 723 bp->rhw_fifo_lh = sample; 724 bp->rhw_fifo_rh = sample; 725 } 726 } 727 728 void 729 rep_write_8_stereo(struct repulse_hw *bp, u_int8_t *p, int length, 730 unsigned flags) 731 { 732 u_int16_t xor; 733 734 xor = flags & 1 ? 0x8000 : 0; 735 736 bp->rhw_fifo_pack = 0; 737 738 while (length-- > 0) { 739 bp->rhw_fifo_lh = ((*p++) << 8) ^ xor; 740 bp->rhw_fifo_rh = ((*p++) << 8) ^ xor; 741 } 742 } 743 744 void 745 rep_write_16_mono(struct repulse_hw *bp, u_int8_t *p, int length, 746 unsigned flags) 747 { 748 u_int16_t *q = (u_int16_t *)p; 749 u_int16_t sample; 750 u_int16_t xor; 751 752 xor = flags & 1 ? 0x8000 : 0; 753 754 bp->rhw_fifo_pack = 0; 755 756 if (flags & 2) { 757 while (length > 0) { 758 sample = bswap16(*q++) ^ xor; 759 bp->rhw_fifo_lh = sample; 760 bp->rhw_fifo_rh = sample; 761 length -= 2; 762 } 763 return; 764 } 765 766 while (length > 0) { 767 sample = (*q++) ^ xor; 768 bp->rhw_fifo_lh = sample; 769 bp->rhw_fifo_rh = sample; 770 length -= 2; 771 } 772 } 773 774 void 775 rep_write_16_stereo(struct repulse_hw *bp, u_int8_t *p, int length, 776 unsigned flags) 777 { 778 u_int16_t *q = (u_int16_t *)p; 779 u_int16_t xor; 780 781 xor = flags & 1 ? 0x8000 : 0; 782 783 bp->rhw_fifo_pack = 0; 784 785 if (flags & 2) { 786 while (length > 0) { 787 bp->rhw_fifo_lh = bswap16(*q++) ^ xor; 788 bp->rhw_fifo_rh = bswap16(*q++) ^ xor; 789 length -= 4; 790 } 791 return; 792 } 793 while (length > 0) { 794 bp->rhw_fifo_lh = (*q++) ^ xor; 795 bp->rhw_fifo_rh = (*q++) ^ xor; 796 length -= 4; 797 } 798 } 799 800 void 801 rep_read_8_mono(struct repulse_hw *bp, u_int8_t *p, int length, 802 unsigned flags) 803 { 804 u_int16_t v; 805 u_int16_t xor; 806 807 xor = flags & 1 ? 0x8000 : 0; 808 809 while (length > 0) { 810 *p++ = (bp->rhw_fifo_lh ^ xor) >> 8; 811 v = bp->rhw_fifo_rh; 812 length--; 813 } 814 } 815 816 void 817 rep_read_16_mono(struct repulse_hw *bp, u_int8_t *p, int length, 818 unsigned flags) 819 { 820 u_int16_t *q = (u_int16_t *)p; 821 u_int16_t v; 822 u_int16_t xor; 823 824 xor = flags & 1 ? 0x8000 : 0; 825 826 if (flags & 2) { 827 while (length > 0) { 828 *q++ = bswap16(bp->rhw_fifo_lh ^ xor); 829 v = bp->rhw_fifo_rh; 830 length -= 2; 831 } 832 return; 833 } 834 835 while (length > 0) { 836 *q++ = bp->rhw_fifo_lh ^ xor; 837 v = bp->rhw_fifo_rh; 838 length -= 2; 839 } 840 } 841 842 void 843 rep_read_8_stereo(struct repulse_hw *bp, u_int8_t *p, int length, 844 unsigned flags) 845 { 846 u_int16_t xor; 847 848 xor = flags & 1 ? 0x8000 : 0; 849 while (length > 0) { 850 *p++ = (bp->rhw_fifo_lh ^ xor) >> 8; 851 *p++ = (bp->rhw_fifo_rh ^ xor) >> 8; 852 length -= 2; 853 } 854 } 855 856 void 857 rep_read_16_stereo(struct repulse_hw *bp, u_int8_t *p, int length, 858 unsigned flags) 859 { 860 u_int16_t *q = (u_int16_t *)p; 861 u_int16_t xor; 862 863 xor = flags & 1 ? 0x8000 : 0; 864 865 if (flags & 2) { 866 while (length > 0) { 867 *q++ = bswap16(bp->rhw_fifo_lh ^ xor); 868 *q++ = bswap16(bp->rhw_fifo_rh ^ xor); 869 length -= 4; 870 } 871 return; 872 } 873 while (length > 0) { 874 *q++ = bp->rhw_fifo_lh ^ xor; 875 *q++ = bp->rhw_fifo_rh ^ xor; 876 length -= 4; 877 } 878 } 879 880 /* 881 * At this point the transfer function is set. 882 */ 883 884 int 885 rep_start_output(void *addr, void *block, int blksize, 886 void (*intr)(void*), void *intrarg) { 887 888 struct repulse_softc *sc; 889 u_int8_t *buf; 890 struct repulse_hw *bp; 891 u_int16_t status; 892 893 894 sc = addr; 895 bp = sc->sc_boardp; 896 buf = block; 897 898 /* TODO: prepare hw if necessary */ 899 status = bp->rhw_status; 900 if (!(status & REPSTATUS_PLAY)) 901 bp->rhw_status = status | 902 REPSTATUS_PLAY | REPSTATUS_PLAYFIFORST; 903 904 /* copy data */ 905 (*sc->sc_playfun)(bp, buf, blksize, sc->sc_playflags); 906 907 /* TODO: set hw if necessary */ 908 if (intr) { 909 bp->rhw_status |= REPSTATUS_PLAYIRQENABLE; 910 bp->rhw_play_fifosz = blksize / sc->sc_playscale / 2; 911 /* /2: give us time to return on the first call */ 912 } 913 914 /* save callback function */ 915 sc->sc_playarg = intrarg; 916 sc->sc_playmore = intr; 917 918 return 0; 919 } 920 921 int 922 rep_start_input(void *addr, void *block, int blksize, 923 void (*intr)(void*), void *intrarg) { 924 925 struct repulse_softc *sc; 926 struct repulse_hw *bp; 927 u_int16_t status; 928 929 sc = addr; 930 bp = sc->sc_boardp; 931 932 sc->sc_captbuf = block; 933 sc->sc_captbufsz = blksize; 934 sc->sc_captarg = intrarg; 935 sc->sc_captmore = intr; 936 937 status = bp->rhw_status; 938 if (!(status & REPSTATUS_RECORD)) 939 bp->rhw_status = status | REPSTATUS_RECORD 940 | REPSTATUS_RECFIFORST; 941 942 bp->rhw_status |= REPSTATUS_RECIRQENABLE; 943 bp->rhw_capt_fifosz = blksize / sc->sc_captscale; 944 945 return 0; 946 } 947 948 /* irq handler */ 949 950 int 951 rep_intr(void *tag) { 952 struct repulse_softc *sc; 953 struct repulse_hw *bp; 954 int foundone; 955 u_int16_t status; 956 957 foundone = 0; 958 959 sc = tag; 960 bp = sc->sc_boardp; 961 status = bp->rhw_status; 962 963 if (status & REPSTATUS_PLAYIRQACK) { 964 foundone = 1; 965 status &= ~REPSTATUS_PLAYIRQENABLE; 966 bp->rhw_status = status; 967 (*sc->sc_playmore)(sc->sc_playarg); 968 } 969 970 if (status & REPSTATUS_RECIRQACK) { 971 foundone = 1; 972 status &= ~REPSTATUS_RECIRQENABLE; 973 bp->rhw_status = status; 974 (*sc->sc_captfun)(bp, sc->sc_captbuf, sc->sc_captbufsz, 975 sc->sc_captflags); 976 (*sc->sc_captmore)(sc->sc_captarg); 977 } 978 979 return foundone; 980 } 981
Indexes created Wed Oct 15 16:09:53 GMT 2025