ad1816.c revision 54825
1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * Copyright Luigi Rizzo, 1997,1998 4 * Copyright by Hannu Savolainen 1994, 1995 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 * $FreeBSD: head/sys/dev/sound/isa/ad1816.c 54825 1999-12-19 15:07:56Z cg $ 29 */ 30 31#include <dev/sound/pcm/sound.h> 32#include <dev/sound/isa/ad1816.h> 33 34struct ad1816_info; 35 36struct ad1816_chinfo { 37 struct ad1816_info *parent; 38 pcm_channel *channel; 39 snd_dbuf *buffer; 40 int dir; 41}; 42 43struct ad1816_info { 44 struct resource *io_base; /* primary I/O address for the board */ 45 int io_rid; 46 struct resource *irq; 47 int irq_rid; 48 struct resource *drq1; /* play */ 49 int drq1_rid; 50 struct resource *drq2; /* rec */ 51 int drq2_rid; 52 bus_dma_tag_t parent_dmat; 53 54 struct ad1816_chinfo pch, rch; 55}; 56 57static driver_intr_t ad1816_intr; 58static int ad1816_probe(device_t dev); 59static int ad1816_attach(device_t dev); 60 61/* IO primitives */ 62static int ad1816_wait_init(struct ad1816_info *ad1816, int x); 63static u_short ad1816_read(struct ad1816_info *ad1816, u_int reg); 64static void ad1816_write(struct ad1816_info *ad1816, u_int reg, u_short data); 65 66static int ad1816mix_init(snd_mixer *m); 67static int ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right); 68static int ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src); 69static snd_mixer ad1816_mixer = { 70 "ad1816 mixer", 71 ad1816mix_init, 72 ad1816mix_set, 73 ad1816mix_setrecsrc, 74}; 75 76static devclass_t pcm_devclass; 77 78/* channel interface */ 79static void *ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir); 80static int ad1816chan_setdir(void *data, int dir); 81static int ad1816chan_setformat(void *data, u_int32_t format); 82static int ad1816chan_setspeed(void *data, u_int32_t speed); 83static int ad1816chan_setblocksize(void *data, u_int32_t blocksize); 84static int ad1816chan_trigger(void *data, int go); 85static int ad1816chan_getptr(void *data); 86static pcmchan_caps *ad1816chan_getcaps(void *data); 87 88static pcmchan_caps ad1816_caps = { 89 4000, 55200, 90 AFMT_STEREO | AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, 91 AFMT_STEREO | AFMT_S16_LE 92}; 93 94static pcm_channel ad1816_chantemplate = { 95 ad1816chan_init, 96 ad1816chan_setdir, 97 ad1816chan_setformat, 98 ad1816chan_setspeed, 99 ad1816chan_setblocksize, 100 ad1816chan_trigger, 101 ad1816chan_getptr, 102 ad1816chan_getcaps, 103}; 104 105#define AD1816_MUTE 31 /* value for mute */ 106 107static int 108port_rd(struct resource *port, int off) 109{ 110 if (port) 111 return bus_space_read_1(rman_get_bustag(port), 112 rman_get_bushandle(port), 113 off); 114 else 115 return -1; 116} 117 118static void 119port_wr(struct resource *port, int off, u_int8_t data) 120{ 121 if (port) 122 return bus_space_write_1(rman_get_bustag(port), 123 rman_get_bushandle(port), 124 off, data); 125} 126 127static int 128io_rd(struct ad1816_info *ad1816, int reg) 129{ 130 return port_rd(ad1816->io_base, reg); 131} 132 133static void 134io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data) 135{ 136 return port_wr(ad1816->io_base, reg, data); 137} 138 139static void 140ad1816_intr(void *arg) 141{ 142 struct ad1816_info *ad1816 = (struct ad1816_info *)arg; 143 unsigned char c, served = 0; 144 145 /* get interupt status */ 146 c = io_rd(ad1816, AD1816_INT); 147 148 /* check for stray interupts */ 149 if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) { 150 printf("pcm: stray int (%x)\n", c); 151 c &= AD1816_INTRCI | AD1816_INTRPI; 152 } 153 /* check for capture interupt */ 154 if (ad1816->rch.buffer->dl && (c & AD1816_INTRCI)) { 155 chn_intr(ad1816->rch.channel); 156 served |= AD1816_INTRCI; /* cp served */ 157 } 158 /* check for playback interupt */ 159 if (ad1816->pch.buffer->dl && (c & AD1816_INTRPI)) { 160 chn_intr(ad1816->pch.channel); 161 served |= AD1816_INTRPI; /* pb served */ 162 } 163 if (served == 0) { 164 /* this probably means this is not a (working) ad1816 chip, */ 165 /* or an error in dma handling */ 166 printf("pcm: int without reason (%x)\n", c); 167 c = 0; 168 } else c &= ~served; 169 io_wr(ad1816, AD1816_INT, c); 170 c = io_rd(ad1816, AD1816_INT); 171 if (c != 0) printf("pcm: int clear failed (%x)\n", c); 172} 173 174static int 175ad1816_wait_init(struct ad1816_info *ad1816, int x) 176{ 177 int n = 0; /* to shut up the compiler... */ 178 179 for (; x--;) 180 if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10); 181 else return n; 182 printf("ad1816_wait_init failed 0x%02x.\n", n); 183 return -1; 184} 185 186static unsigned short 187ad1816_read(struct ad1816_info *ad1816, unsigned int reg) 188{ 189 int flags; 190 u_short x = 0; 191 192 /* we don't want to be blocked here */ 193 flags = spltty(); 194 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 195 io_wr(ad1816, AD1816_ALE, 0); 196 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 197 if (ad1816_wait_init(ad1816, 100) == -1) return 0; 198 x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW); 199 splx(flags); 200 return x; 201} 202 203static void 204ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data) 205{ 206 int flags; 207 208 flags = spltty(); 209 if (ad1816_wait_init(ad1816, 100) == -1) return; 210 io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK)); 211 io_wr(ad1816, AD1816_LOW, (data & 0x000000ff)); 212 io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8); 213 splx(flags); 214} 215 216static int 217ad1816mix_init(snd_mixer *m) 218{ 219 mix_setdevs(m, AD1816_MIXER_DEVICES); 220 mix_setrecdevs(m, AD1816_REC_DEVICES); 221 return 0; 222} 223 224static int 225ad1816mix_set(snd_mixer *m, unsigned dev, unsigned left, unsigned right) 226{ 227 struct ad1816_info *ad1816 = mix_getdevinfo(m); 228 u_short reg = 0; 229 230 /* Scale volumes */ 231 left = AD1816_MUTE - (AD1816_MUTE * left) / 100; 232 right = AD1816_MUTE - (AD1816_MUTE * right) / 100; 233 234 reg = (left << 8) | right; 235 236 /* do channel selective muting if volume is zero */ 237 if (left == AD1816_MUTE) reg |= 0x8000; 238 if (right == AD1816_MUTE) reg |= 0x0080; 239 240 switch (dev) { 241 case SOUND_MIXER_VOLUME: /* Register 14 master volume */ 242 ad1816_write(ad1816, 14, reg); 243 break; 244 245 case SOUND_MIXER_CD: /* Register 15 cd */ 246 case SOUND_MIXER_LINE1: 247 ad1816_write(ad1816, 15, reg); 248 break; 249 250 case SOUND_MIXER_SYNTH: /* Register 16 synth */ 251 ad1816_write(ad1816, 16, reg); 252 break; 253 254 case SOUND_MIXER_PCM: /* Register 4 pcm */ 255 ad1816_write(ad1816, 4, reg); 256 break; 257 258 case SOUND_MIXER_LINE: 259 case SOUND_MIXER_LINE3: /* Register 18 line in */ 260 ad1816_write(ad1816, 18, reg); 261 break; 262 263 case SOUND_MIXER_MIC: /* Register 19 mic volume */ 264 ad1816_write(ad1816, 19, reg & ~0xff); /* mic is mono */ 265 break; 266 267 case SOUND_MIXER_IGAIN: 268 /* and now to something completely different ... */ 269 ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f) 270 | (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */ 271 | ((AD1816_MUTE - right) / 2))); 272 break; 273 274 default: 275 printf("ad1816_mixer_set(): unknown device.\n"); 276 break; 277 } 278 279 left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE; 280 right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE; 281 282 return left | (right << 8); 283} 284 285static int 286ad1816mix_setrecsrc(snd_mixer *m, u_int32_t src) 287{ 288 struct ad1816_info *ad1816 = mix_getdevinfo(m); 289 int dev; 290 291 switch (src) { 292 case SOUND_MASK_LINE: 293 case SOUND_MASK_LINE3: 294 dev = 0x00; 295 break; 296 297 case SOUND_MASK_CD: 298 case SOUND_MASK_LINE1: 299 dev = 0x20; 300 break; 301 302 case SOUND_MASK_MIC: 303 default: 304 dev = 0x50; 305 src = SOUND_MASK_MIC; 306 } 307 308 dev |= dev << 8; 309 ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev); 310 return src; 311} 312 313/* channel interface */ 314static void * 315ad1816chan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir) 316{ 317 struct ad1816_info *ad1816 = devinfo; 318 struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch; 319 320 ch->parent = ad1816; 321 ch->channel = c; 322 ch->buffer = b; 323 ch->buffer->bufsize = DSP_BUFFSIZE; 324 if (chn_allocbuf(ch->buffer, ad1816->parent_dmat) == -1) return NULL; 325 return ch; 326} 327 328static int 329ad1816chan_setdir(void *data, int dir) 330{ 331 struct ad1816_chinfo *ch = data; 332 struct ad1816_info *ad1816 = ch->parent; 333 334 ch->buffer->chan = rman_get_start((dir == PCMDIR_PLAY)? 335 ad1816->drq1 : ad1816->drq2); 336 ch->dir = dir; 337 return 0; 338} 339 340static int 341ad1816chan_setformat(void *data, u_int32_t format) 342{ 343 struct ad1816_chinfo *ch = data; 344 struct ad1816_info *ad1816 = ch->parent; 345 346 int fmt = AD1816_U8, reg; 347 if (ch->dir == PCMDIR_PLAY) { 348 reg = AD1816_PLAY; 349 ad1816_write(ad1816, 8, 0x0000); /* reset base and current counter */ 350 ad1816_write(ad1816, 9, 0x0000); /* for playback and capture */ 351 } else { 352 reg = AD1816_CAPT; 353 ad1816_write(ad1816, 10, 0x0000); 354 ad1816_write(ad1816, 11, 0x0000); 355 } 356 switch (format & ~AFMT_STEREO) { 357 case AFMT_A_LAW: 358 fmt = AD1816_ALAW; 359 break; 360 361 case AFMT_MU_LAW: 362 fmt = AD1816_MULAW; 363 break; 364 365 case AFMT_S16_LE: 366 fmt = AD1816_S16LE; 367 break; 368 369 case AFMT_S16_BE: 370 fmt = AD1816_S16BE; 371 break; 372 373 case AFMT_U8: 374 fmt = AD1816_U8; 375 break; 376 } 377 if (format & AFMT_STEREO) fmt |= AD1816_STEREO; 378 io_wr(ad1816, reg, fmt); 379 return format; 380} 381 382static int 383ad1816chan_setspeed(void *data, u_int32_t speed) 384{ 385 struct ad1816_chinfo *ch = data; 386 struct ad1816_info *ad1816 = ch->parent; 387 388 RANGE(speed, 4000, 55200); 389 ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed); 390 return speed; 391} 392 393static int 394ad1816chan_setblocksize(void *data, u_int32_t blocksize) 395{ 396 return blocksize; 397} 398 399static int 400ad1816chan_trigger(void *data, int go) 401{ 402 struct ad1816_chinfo *ch = data; 403 struct ad1816_info *ad1816 = ch->parent; 404 int wr, reg; 405 406 buf_isadma(ch->buffer, go); 407 wr = (ch->dir == PCMDIR_PLAY); 408 reg = wr? AD1816_PLAY : AD1816_CAPT; 409 switch (go) { 410 case PCMTRIG_START: 411 /* start only if not already running */ 412 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) { 413 int cnt = ((ch->buffer->dl) >> 2) - 1; 414 ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */ 415 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) | 416 (wr? 0x8000 : 0x4000)); /* enable int */ 417 /* enable playback */ 418 io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE); 419 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) 420 printf("ad1816: failed to start %s DMA!\n", 421 wr? "play" : "rec"); 422 } 423 break; 424 425 case PCMTRIG_STOP: 426 case PCMTRIG_ABORT: /* XXX check this... */ 427 /* we don't test here if it is running... */ 428 if (wr) { 429 ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) & 430 ~(wr? 0x8000 : 0x4000)); 431 /* disable int */ 432 io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE); 433 /* disable playback */ 434 if (io_rd(ad1816, reg) & AD1816_ENABLE) 435 printf("ad1816: failed to stop %s DMA!\n", 436 wr? "play" : "rec"); 437 ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */ 438 ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */ 439 } 440 break; 441 } 442 return 0; 443} 444 445static int 446ad1816chan_getptr(void *data) 447{ 448 struct ad1816_chinfo *ch = data; 449 return buf_isadmaptr(ch->buffer); 450} 451 452static pcmchan_caps * 453ad1816chan_getcaps(void *data) 454{ 455 return &ad1816_caps; 456} 457 458static void 459ad1816_release_resources(struct ad1816_info *ad1816, device_t dev) 460{ 461 if (ad1816->irq) { 462 bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, 463 ad1816->irq); 464 ad1816->irq = 0; 465 } 466 if (ad1816->drq1) { 467 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, 468 ad1816->drq1); 469 ad1816->drq1 = 0; 470 } 471 if (ad1816->drq2) { 472 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid, 473 ad1816->drq2); 474 ad1816->drq2 = 0; 475 } 476 if (ad1816->io_base) { 477 bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid, 478 ad1816->io_base); 479 ad1816->io_base = 0; 480 } 481 free(ad1816, M_DEVBUF); 482} 483 484static int 485ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev) 486{ 487 int ok = 1, pdma, rdma; 488 if (!ad1816->io_base) 489 ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid, 490 0, ~0, 1, RF_ACTIVE); 491 if (!ad1816->irq) 492 ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid, 493 0, ~0, 1, RF_ACTIVE); 494 if (!ad1816->drq1) 495 ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid, 496 0, ~0, 1, RF_ACTIVE); 497 if (!ad1816->drq2) 498 ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid, 499 0, ~0, 1, RF_ACTIVE); 500 501 if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0; 502 503 if (ok) { 504 pdma = rman_get_start(ad1816->drq1); 505 isa_dma_acquire(pdma); 506 isa_dmainit(pdma, DSP_BUFFSIZE); 507 if (ad1816->drq2) { 508 rdma = rman_get_start(ad1816->drq2); 509 isa_dma_acquire(rdma); 510 isa_dmainit(rdma, DSP_BUFFSIZE); 511 } else rdma = pdma; 512 if (pdma == rdma) 513 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX); 514 } 515 return ok; 516} 517 518static int 519ad1816_init(struct ad1816_info *ad1816, device_t dev) 520{ 521 ad1816_write(ad1816, 1, 0x2); /* disable interrupts */ 522 ad1816_write(ad1816, 32, 0x90F0); /* SoundSys Mode, split fmt */ 523 524 ad1816_write(ad1816, 5, 0x8080); /* FM volume mute */ 525 ad1816_write(ad1816, 6, 0x8080); /* I2S1 volume mute */ 526 ad1816_write(ad1816, 7, 0x8080); /* I2S0 volume mute */ 527 ad1816_write(ad1816, 17, 0x8888); /* VID Volume mute */ 528 ad1816_write(ad1816, 20, 0x5050); /* recsrc mic, agc off */ 529 /* adc gain is set to 0 */ 530 531 return 0; 532} 533 534static int 535ad1816_probe(device_t dev) 536{ 537 char *s = NULL; 538 u_int32_t logical_id = isa_get_logicalid(dev); 539 540 switch (logical_id) { 541 case 0x80719304: /* ADS7180 */ 542 s = "AD1816"; 543 break; 544 } 545 546 if (s) { 547 device_set_desc(dev, s); 548 return 0; 549 } 550 return ENXIO; 551} 552 553static int 554ad1816_attach(device_t dev) 555{ 556 struct ad1816_info *ad1816; 557 snddev_info *d = device_get_softc(dev); 558 void *ih; 559 char status[SND_STATUSLEN]; 560 561 ad1816 = (struct ad1816_info *)malloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT); 562 if (!ad1816) return ENXIO; 563 bzero(ad1816, sizeof *ad1816); 564 565 ad1816->io_rid = 2; 566 ad1816->irq_rid = 0; 567 ad1816->drq1_rid = 0; 568 ad1816->drq2_rid = 1; 569 570 if (!ad1816_alloc_resources(ad1816, dev)) goto no; 571 ad1816_init(ad1816, dev); 572 mixer_init(d, &ad1816_mixer, ad1816); 573 bus_setup_intr(dev, ad1816->irq, INTR_TYPE_TTY, ad1816_intr, ad1816, &ih); 574 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 575 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT, 576 /*highaddr*/BUS_SPACE_MAXADDR, 577 /*filter*/NULL, /*filterarg*/NULL, 578 /*maxsize*/DSP_BUFFSIZE, /*nsegments*/1, 579 /*maxsegz*/0x3ffff, 580 /*flags*/0, &ad1816->parent_dmat) != 0) { 581 device_printf(dev, "unable to create dma tag\n"); 582 goto no; 583 } 584 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld", 585 rman_get_start(ad1816->io_base), 586 rman_get_start(ad1816->irq), 587 rman_get_start(ad1816->drq1)); 588 if (ad1816->drq2) snprintf(status + strlen(status), 589 SND_STATUSLEN - strlen(status), ":%ld", 590 rman_get_start(ad1816->drq2)); 591 592 if (pcm_register(dev, ad1816, 1, 1)) goto no; 593 pcm_addchan(dev, PCMDIR_REC, &ad1816_chantemplate, ad1816); 594 pcm_addchan(dev, PCMDIR_PLAY, &ad1816_chantemplate, ad1816); 595 pcm_setstatus(dev, status); 596 597 return 0; 598no: 599 ad1816_release_resources(ad1816, dev); 600 return ENXIO; 601 602} 603 604static device_method_t ad1816_methods[] = { 605 /* Device interface */ 606 DEVMETHOD(device_probe, ad1816_probe), 607 DEVMETHOD(device_attach, ad1816_attach), 608 609 { 0, 0 } 610}; 611 612static driver_t ad1816_driver = { 613 "pcm", 614 ad1816_methods, 615 sizeof(snddev_info), 616}; 617 618DRIVER_MODULE(ad1816, isa, ad1816_driver, pcm_devclass, 0, 0); 619