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/pci/als4000.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2001 Orion Hodson <oho@acm.org> 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, WHETHERIN 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 THEPOSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * als4000.c - driver for the Avance Logic ALS 4000 chipset. 31 * 32 * The ALS4000 is effectively an SB16 with a PCI interface. 33 * 34 * This driver derives from ALS4000a.PDF, Bart Hartgers alsa driver, and 35 * SB16 register descriptions. 36 */ 37 38 #ifdef HAVE_KERNEL_OPTION_HEADERS 39 #include "opt_snd.h" 40 #endif 41 42 #include <dev/sound/pcm/sound.h> 43 #include <dev/sound/isa/sb.h> 44 #include <dev/sound/pci/als4000.h> 45 46 #include <dev/pci/pcireg.h> 47 #include <dev/pci/pcivar.h> 48 49 #include "mixer_if.h" 50 51 SND_DECLARE_FILE("$FreeBSD$"); 52 53 /* Debugging macro's */ 54 #undef DEB 55 #ifndef DEB 56 #define DEB(x) /* x */ 57 #endif /* DEB */ 58 59 #define ALS_DEFAULT_BUFSZ 16384 60 61 /* ------------------------------------------------------------------------- */ 62 /* Structures */ 63 64 struct sc_info; 65 66 struct sc_chinfo { 67 struct sc_info *parent; 68 struct pcm_channel *channel; 69 struct snd_dbuf *buffer; 70 u_int32_t format, speed, phys_buf, bps; 71 u_int32_t dma_active:1, dma_was_active:1; 72 u_int8_t gcr_fifo_status; 73 int dir; 74 }; 75 76 struct sc_info { 77 device_t dev; 78 bus_space_tag_t st; 79 bus_space_handle_t sh; 80 bus_dma_tag_t parent_dmat; 81 struct resource *reg, *irq; 82 int regid, irqid; 83 void *ih; 84 struct mtx *lock; 85 86 unsigned int bufsz; 87 struct sc_chinfo pch, rch; 88 }; 89 90 /* Channel caps */ 91 92 static u_int32_t als_format[] = { 93 SND_FORMAT(AFMT_U8, 1, 0), 94 SND_FORMAT(AFMT_U8, 2, 0), 95 SND_FORMAT(AFMT_S16_LE, 1, 0), 96 SND_FORMAT(AFMT_S16_LE, 2, 0), 97 0 98 }; 99 100 /* 101 * I don't believe this rotten soundcard can do 48k, really, 102 * trust me. 103 */ 104 static struct pcmchan_caps als_caps = { 4000, 44100, als_format, 0 }; 105 106 /* ------------------------------------------------------------------------- */ 107 /* Register Utilities */ 108 109 static u_int32_t 110 als_gcr_rd(struct sc_info *sc, int index) 111 { 112 bus_space_write_1(sc->st, sc->sh, ALS_GCR_INDEX, index); 113 return bus_space_read_4(sc->st, sc->sh, ALS_GCR_DATA); 114 } 115 116 static void 117 als_gcr_wr(struct sc_info *sc, int index, int data) 118 { 119 bus_space_write_1(sc->st, sc->sh, ALS_GCR_INDEX, index); 120 bus_space_write_4(sc->st, sc->sh, ALS_GCR_DATA, data); 121 } 122 123 static u_int8_t 124 als_intr_rd(struct sc_info *sc) 125 { 126 return bus_space_read_1(sc->st, sc->sh, ALS_SB_MPU_IRQ); 127 } 128 129 static void 130 als_intr_wr(struct sc_info *sc, u_int8_t data) 131 { 132 bus_space_write_1(sc->st, sc->sh, ALS_SB_MPU_IRQ, data); 133 } 134 135 static u_int8_t 136 als_mix_rd(struct sc_info *sc, u_int8_t index) 137 { 138 bus_space_write_1(sc->st, sc->sh, ALS_MIXER_INDEX, index); 139 return bus_space_read_1(sc->st, sc->sh, ALS_MIXER_DATA); 140 } 141 142 static void 143 als_mix_wr(struct sc_info *sc, u_int8_t index, u_int8_t data) 144 { 145 bus_space_write_1(sc->st, sc->sh, ALS_MIXER_INDEX, index); 146 bus_space_write_1(sc->st, sc->sh, ALS_MIXER_DATA, data); 147 } 148 149 static void 150 als_esp_wr(struct sc_info *sc, u_int8_t data) 151 { 152 u_int32_t tries, v; 153 154 tries = 1000; 155 do { 156 v = bus_space_read_1(sc->st, sc->sh, ALS_ESP_WR_STATUS); 157 if (~v & 0x80) 158 break; 159 DELAY(20); 160 } while (--tries != 0); 161 162 if (tries == 0) 163 device_printf(sc->dev, "als_esp_wr timeout"); 164 165 bus_space_write_1(sc->st, sc->sh, ALS_ESP_WR_DATA, data); 166 } 167 168 static int 169 als_esp_reset(struct sc_info *sc) 170 { 171 u_int32_t tries, u, v; 172 173 bus_space_write_1(sc->st, sc->sh, ALS_ESP_RST, 1); 174 DELAY(10); 175 bus_space_write_1(sc->st, sc->sh, ALS_ESP_RST, 0); 176 DELAY(30); 177 178 tries = 1000; 179 do { 180 u = bus_space_read_1(sc->st, sc->sh, ALS_ESP_RD_STATUS8); 181 if (u & 0x80) { 182 v = bus_space_read_1(sc->st, sc->sh, ALS_ESP_RD_DATA); 183 if (v == 0xaa) 184 return 0; 185 else 186 break; 187 } 188 DELAY(20); 189 } while (--tries != 0); 190 191 if (tries == 0) 192 device_printf(sc->dev, "als_esp_reset timeout"); 193 return 1; 194 } 195 196 static u_int8_t 197 als_ack_read(struct sc_info *sc, u_int8_t addr) 198 { 199 u_int8_t r = bus_space_read_1(sc->st, sc->sh, addr); 200 return r; 201 } 202 203 /* ------------------------------------------------------------------------- */ 204 /* Common pcm channel implementation */ 205 206 static void * 207 alschan_init(kobj_t obj, void *devinfo, 208 struct snd_dbuf *b, struct pcm_channel *c, int dir) 209 { 210 struct sc_info *sc = devinfo; 211 struct sc_chinfo *ch; 212 213 snd_mtxlock(sc->lock); 214 if (dir == PCMDIR_PLAY) { 215 ch = &sc->pch; 216 ch->gcr_fifo_status = ALS_GCR_FIFO0_STATUS; 217 } else { 218 ch = &sc->rch; 219 ch->gcr_fifo_status = ALS_GCR_FIFO1_STATUS; 220 } 221 ch->dir = dir; 222 ch->parent = sc; 223 ch->channel = c; 224 ch->bps = 1; 225 ch->format = SND_FORMAT(AFMT_U8, 1, 0); 226 ch->speed = DSP_DEFAULT_SPEED; 227 ch->buffer = b; 228 snd_mtxunlock(sc->lock); 229 230 if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsz) != 0) 231 return NULL; 232 233 return ch; 234 } 235 236 static int 237 alschan_setformat(kobj_t obj, void *data, u_int32_t format) 238 { 239 struct sc_chinfo *ch = data; 240 241 ch->format = format; 242 return 0; 243 } 244 245 static u_int32_t 246 alschan_setspeed(kobj_t obj, void *data, u_int32_t speed) 247 { 248 struct sc_chinfo *ch = data, *other; 249 struct sc_info *sc = ch->parent; 250 251 other = (ch->dir == PCMDIR_PLAY) ? &sc->rch : &sc->pch; 252 253 /* Deny request if other dma channel is active */ 254 if (other->dma_active) { 255 ch->speed = other->speed; 256 return other->speed; 257 } 258 259 ch->speed = speed; 260 return speed; 261 } 262 263 static u_int32_t 264 alschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 265 { 266 struct sc_chinfo *ch = data; 267 struct sc_info *sc = ch->parent; 268 269 if (blocksize > sc->bufsz / 2) { 270 blocksize = sc->bufsz / 2; 271 } 272 sndbuf_resize(ch->buffer, 2, blocksize); 273 return blocksize; 274 } 275 276 static u_int32_t 277 alschan_getptr(kobj_t obj, void *data) 278 { 279 struct sc_chinfo *ch = data; 280 struct sc_info *sc = ch->parent; 281 int32_t pos, sz; 282 283 snd_mtxlock(sc->lock); 284 pos = als_gcr_rd(ch->parent, ch->gcr_fifo_status) & 0xffff; 285 snd_mtxunlock(sc->lock); 286 sz = sndbuf_getsize(ch->buffer); 287 return (2 * sz - pos - 1) % sz; 288 } 289 290 static struct pcmchan_caps* 291 alschan_getcaps(kobj_t obj, void *data) 292 { 293 return &als_caps; 294 } 295 296 static void 297 als_set_speed(struct sc_chinfo *ch) 298 { 299 struct sc_info *sc = ch->parent; 300 struct sc_chinfo *other; 301 302 other = (ch->dir == PCMDIR_PLAY) ? &sc->rch : &sc->pch; 303 if (other->dma_active == 0) { 304 als_esp_wr(sc, ALS_ESP_SAMPLE_RATE); 305 als_esp_wr(sc, ch->speed >> 8); 306 als_esp_wr(sc, ch->speed & 0xff); 307 } else { 308 DEB(printf("speed locked at %d (tried %d)\n", 309 other->speed, ch->speed)); 310 } 311 } 312 313 /* ------------------------------------------------------------------------- */ 314 /* Playback channel implementation */ 315 #define ALS_8BIT_CMD(x, y) { (x), (y), DSP_DMA8, DSP_CMD_DMAPAUSE_8 } 316 #define ALS_16BIT_CMD(x, y) { (x), (y), DSP_DMA16, DSP_CMD_DMAPAUSE_16 } 317 318 struct playback_command { 319 u_int32_t pcm_format; /* newpcm format */ 320 u_int8_t format_val; /* sb16 format value */ 321 u_int8_t dma_prog; /* sb16 dma program */ 322 u_int8_t dma_stop; /* sb16 stop register */ 323 } static const playback_cmds[] = { 324 ALS_8BIT_CMD(SND_FORMAT(AFMT_U8, 1, 0), DSP_MODE_U8MONO), 325 ALS_8BIT_CMD(SND_FORMAT(AFMT_U8, 2, 0), DSP_MODE_U8STEREO), 326 ALS_16BIT_CMD(SND_FORMAT(AFMT_S16_LE, 1, 0), DSP_MODE_S16MONO), 327 ALS_16BIT_CMD(SND_FORMAT(AFMT_S16_LE, 2, 0), DSP_MODE_S16STEREO), 328 }; 329 330 static const struct playback_command* 331 als_get_playback_command(u_int32_t format) 332 { 333 u_int32_t i, n; 334 335 n = sizeof(playback_cmds) / sizeof(playback_cmds[0]); 336 for (i = 0; i < n; i++) { 337 if (playback_cmds[i].pcm_format == format) { 338 return &playback_cmds[i]; 339 } 340 } 341 DEB(printf("als_get_playback_command: invalid format 0x%08x\n", 342 format)); 343 return &playback_cmds[0]; 344 } 345 346 static void 347 als_playback_start(struct sc_chinfo *ch) 348 { 349 const struct playback_command *p; 350 struct sc_info *sc = ch->parent; 351 u_int32_t buf, bufsz, count, dma_prog; 352 353 buf = sndbuf_getbufaddr(ch->buffer); 354 bufsz = sndbuf_getsize(ch->buffer); 355 count = bufsz / 2; 356 if (ch->format & AFMT_16BIT) 357 count /= 2; 358 count--; 359 360 als_esp_wr(sc, DSP_CMD_SPKON); 361 als_set_speed(ch); 362 363 als_gcr_wr(sc, ALS_GCR_DMA0_START, buf); 364 als_gcr_wr(sc, ALS_GCR_DMA0_MODE, (bufsz - 1) | 0x180000); 365 366 p = als_get_playback_command(ch->format); 367 dma_prog = p->dma_prog | DSP_F16_DAC | DSP_F16_AUTO | DSP_F16_FIFO_ON; 368 369 als_esp_wr(sc, dma_prog); 370 als_esp_wr(sc, p->format_val); 371 als_esp_wr(sc, count & 0xff); 372 als_esp_wr(sc, count >> 8); 373 374 ch->dma_active = 1; 375 } 376 377 static int 378 als_playback_stop(struct sc_chinfo *ch) 379 { 380 const struct playback_command *p; 381 struct sc_info *sc = ch->parent; 382 u_int32_t active; 383 384 active = ch->dma_active; 385 if (active) { 386 p = als_get_playback_command(ch->format); 387 als_esp_wr(sc, p->dma_stop); 388 } 389 ch->dma_active = 0; 390 return active; 391 } 392 393 static int 394 alspchan_trigger(kobj_t obj, void *data, int go) 395 { 396 struct sc_chinfo *ch = data; 397 struct sc_info *sc = ch->parent; 398 399 if (!PCMTRIG_COMMON(go)) 400 return 0; 401 402 snd_mtxlock(sc->lock); 403 switch(go) { 404 case PCMTRIG_START: 405 als_playback_start(ch); 406 break; 407 case PCMTRIG_STOP: 408 case PCMTRIG_ABORT: 409 als_playback_stop(ch); 410 break; 411 default: 412 break; 413 } 414 snd_mtxunlock(sc->lock); 415 return 0; 416 } 417 418 static kobj_method_t alspchan_methods[] = { 419 KOBJMETHOD(channel_init, alschan_init), 420 KOBJMETHOD(channel_setformat, alschan_setformat), 421 KOBJMETHOD(channel_setspeed, alschan_setspeed), 422 KOBJMETHOD(channel_setblocksize, alschan_setblocksize), 423 KOBJMETHOD(channel_trigger, alspchan_trigger), 424 KOBJMETHOD(channel_getptr, alschan_getptr), 425 KOBJMETHOD(channel_getcaps, alschan_getcaps), 426 KOBJMETHOD_END 427 }; 428 CHANNEL_DECLARE(alspchan); 429 430 /* ------------------------------------------------------------------------- */ 431 /* Capture channel implementation */ 432 433 static u_int8_t 434 als_get_fifo_format(struct sc_info *sc, u_int32_t format) 435 { 436 switch (format) { 437 case SND_FORMAT(AFMT_U8, 1, 0): 438 return ALS_FIFO1_8BIT; 439 case SND_FORMAT(AFMT_U8, 2, 0): 440 return ALS_FIFO1_8BIT | ALS_FIFO1_STEREO; 441 case SND_FORMAT(AFMT_S16_LE, 1, 0): 442 return ALS_FIFO1_SIGNED; 443 case SND_FORMAT(AFMT_S16_LE, 2, 0): 444 return ALS_FIFO1_SIGNED | ALS_FIFO1_STEREO; 445 } 446 device_printf(sc->dev, "format not found: 0x%08x\n", format); 447 return ALS_FIFO1_8BIT; 448 } 449 450 static void 451 als_capture_start(struct sc_chinfo *ch) 452 { 453 struct sc_info *sc = ch->parent; 454 u_int32_t buf, bufsz, count, dma_prog; 455 456 buf = sndbuf_getbufaddr(ch->buffer); 457 bufsz = sndbuf_getsize(ch->buffer); 458 count = bufsz / 2; 459 if (ch->format & AFMT_16BIT) 460 count /= 2; 461 count--; 462 463 als_esp_wr(sc, DSP_CMD_SPKON); 464 als_set_speed(ch); 465 466 als_gcr_wr(sc, ALS_GCR_FIFO1_START, buf); 467 als_gcr_wr(sc, ALS_GCR_FIFO1_COUNT, (bufsz - 1)); 468 469 als_mix_wr(sc, ALS_FIFO1_LENGTH_LO, count & 0xff); 470 als_mix_wr(sc, ALS_FIFO1_LENGTH_HI, count >> 8); 471 472 dma_prog = ALS_FIFO1_RUN | als_get_fifo_format(sc, ch->format); 473 als_mix_wr(sc, ALS_FIFO1_CONTROL, dma_prog); 474 475 ch->dma_active = 1; 476 } 477 478 static int 479 als_capture_stop(struct sc_chinfo *ch) 480 { 481 struct sc_info *sc = ch->parent; 482 u_int32_t active; 483 484 active = ch->dma_active; 485 if (active) { 486 als_mix_wr(sc, ALS_FIFO1_CONTROL, ALS_FIFO1_STOP); 487 } 488 ch->dma_active = 0; 489 return active; 490 } 491 492 static int 493 alsrchan_trigger(kobj_t obj, void *data, int go) 494 { 495 struct sc_chinfo *ch = data; 496 struct sc_info *sc = ch->parent; 497 498 snd_mtxlock(sc->lock); 499 switch(go) { 500 case PCMTRIG_START: 501 als_capture_start(ch); 502 break; 503 case PCMTRIG_STOP: 504 case PCMTRIG_ABORT: 505 als_capture_stop(ch); 506 break; 507 } 508 snd_mtxunlock(sc->lock); 509 return 0; 510 } 511 512 static kobj_method_t alsrchan_methods[] = { 513 KOBJMETHOD(channel_init, alschan_init), 514 KOBJMETHOD(channel_setformat, alschan_setformat), 515 KOBJMETHOD(channel_setspeed, alschan_setspeed), 516 KOBJMETHOD(channel_setblocksize, alschan_setblocksize), 517 KOBJMETHOD(channel_trigger, alsrchan_trigger), 518 KOBJMETHOD(channel_getptr, alschan_getptr), 519 KOBJMETHOD(channel_getcaps, alschan_getcaps), 520 KOBJMETHOD_END 521 }; 522 CHANNEL_DECLARE(alsrchan); 523 524 /* ------------------------------------------------------------------------- */ 525 /* Mixer related */ 526 527 /* 528 * ALS4000 has an sb16 mixer, with some additional controls that we do 529 * not yet a means to support. 530 */ 531 532 struct sb16props { 533 u_int8_t lreg; 534 u_int8_t rreg; 535 u_int8_t bits; 536 u_int8_t oselect; 537 u_int8_t iselect; /* left input mask */ 538 } static const amt[SOUND_MIXER_NRDEVICES] = { 539 [SOUND_MIXER_VOLUME] = { 0x30, 0x31, 5, 0x00, 0x00 }, 540 [SOUND_MIXER_PCM] = { 0x32, 0x33, 5, 0x00, 0x00 }, 541 [SOUND_MIXER_SYNTH] = { 0x34, 0x35, 5, 0x60, 0x40 }, 542 [SOUND_MIXER_CD] = { 0x36, 0x37, 5, 0x06, 0x04 }, 543 [SOUND_MIXER_LINE] = { 0x38, 0x39, 5, 0x18, 0x10 }, 544 [SOUND_MIXER_MIC] = { 0x3a, 0x00, 5, 0x01, 0x01 }, 545 [SOUND_MIXER_SPEAKER] = { 0x3b, 0x00, 2, 0x00, 0x00 }, 546 [SOUND_MIXER_IGAIN] = { 0x3f, 0x40, 2, 0x00, 0x00 }, 547 [SOUND_MIXER_OGAIN] = { 0x41, 0x42, 2, 0x00, 0x00 }, 548 /* The following have register values but no h/w implementation */ 549 [SOUND_MIXER_TREBLE] = { 0x44, 0x45, 4, 0x00, 0x00 }, 550 [SOUND_MIXER_BASS] = { 0x46, 0x47, 4, 0x00, 0x00 } 551 }; 552 553 static int 554 alsmix_init(struct snd_mixer *m) 555 { 556 u_int32_t i, v; 557 558 for (i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) { 559 if (amt[i].bits) v |= 1 << i; 560 } 561 mix_setdevs(m, v); 562 563 for (i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) { 564 if (amt[i].iselect) v |= 1 << i; 565 } 566 mix_setrecdevs(m, v); 567 return 0; 568 } 569 570 static int 571 alsmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 572 { 573 struct sc_info *sc = mix_getdevinfo(m); 574 u_int32_t r, l, v, mask; 575 576 /* Fill upper n bits in mask with 1's */ 577 mask = ((1 << amt[dev].bits) - 1) << (8 - amt[dev].bits); 578 579 l = (left * mask / 100) & mask; 580 v = als_mix_rd(sc, amt[dev].lreg) & ~mask; 581 als_mix_wr(sc, amt[dev].lreg, l | v); 582 583 if (amt[dev].rreg) { 584 r = (right * mask / 100) & mask; 585 v = als_mix_rd(sc, amt[dev].rreg) & ~mask; 586 als_mix_wr(sc, amt[dev].rreg, r | v); 587 } else { 588 r = 0; 589 } 590 591 /* Zero gain does not mute channel from output, but this does. */ 592 v = als_mix_rd(sc, SB16_OMASK); 593 if (l == 0 && r == 0) { 594 v &= ~amt[dev].oselect; 595 } else { 596 v |= amt[dev].oselect; 597 } 598 als_mix_wr(sc, SB16_OMASK, v); 599 return 0; 600 } 601 602 static u_int32_t 603 alsmix_setrecsrc(struct snd_mixer *m, u_int32_t src) 604 { 605 struct sc_info *sc = mix_getdevinfo(m); 606 u_int32_t i, l, r; 607 608 for (i = l = r = 0; i < SOUND_MIXER_NRDEVICES; i++) { 609 if (src & (1 << i)) { 610 if (amt[i].iselect == 1) { /* microphone */ 611 l |= amt[i].iselect; 612 r |= amt[i].iselect; 613 } else { 614 l |= amt[i].iselect; 615 r |= amt[i].iselect >> 1; 616 } 617 } 618 } 619 620 als_mix_wr(sc, SB16_IMASK_L, l); 621 als_mix_wr(sc, SB16_IMASK_R, r); 622 return src; 623 } 624 625 static kobj_method_t als_mixer_methods[] = { 626 KOBJMETHOD(mixer_init, alsmix_init), 627 KOBJMETHOD(mixer_set, alsmix_set), 628 KOBJMETHOD(mixer_setrecsrc, alsmix_setrecsrc), 629 KOBJMETHOD_END 630 }; 631 MIXER_DECLARE(als_mixer); 632 633 /* ------------------------------------------------------------------------- */ 634 /* Interrupt Handler */ 635 636 static void 637 als_intr(void *p) 638 { 639 struct sc_info *sc = (struct sc_info *)p; 640 u_int8_t intr, sb_status; 641 642 snd_mtxlock(sc->lock); 643 intr = als_intr_rd(sc); 644 645 if (intr & 0x80) { 646 snd_mtxunlock(sc->lock); 647 chn_intr(sc->pch.channel); 648 snd_mtxlock(sc->lock); 649 } 650 651 if (intr & 0x40) { 652 snd_mtxunlock(sc->lock); 653 chn_intr(sc->rch.channel); 654 snd_mtxlock(sc->lock); 655 } 656 657 /* ACK interrupt in PCI core */ 658 als_intr_wr(sc, intr); 659 660 /* ACK interrupt in SB core */ 661 sb_status = als_mix_rd(sc, IRQ_STAT); 662 663 if (sb_status & ALS_IRQ_STATUS8) 664 als_ack_read(sc, ALS_ESP_RD_STATUS8); 665 if (sb_status & ALS_IRQ_STATUS16) 666 als_ack_read(sc, ALS_ESP_RD_STATUS16); 667 if (sb_status & ALS_IRQ_MPUIN) 668 als_ack_read(sc, ALS_MIDI_DATA); 669 if (sb_status & ALS_IRQ_CR1E) 670 als_ack_read(sc, ALS_CR1E_ACK_PORT); 671 672 snd_mtxunlock(sc->lock); 673 return; 674 } 675 676 /* ------------------------------------------------------------------------- */ 677 /* H/W initialization */ 678 679 static int 680 als_init(struct sc_info *sc) 681 { 682 u_int32_t i, v; 683 684 /* Reset Chip */ 685 if (als_esp_reset(sc)) { 686 return 1; 687 } 688 689 /* Enable write on DMA_SETUP register */ 690 v = als_mix_rd(sc, ALS_SB16_CONFIG); 691 als_mix_wr(sc, ALS_SB16_CONFIG, v | 0x80); 692 693 /* Select DMA0 */ 694 als_mix_wr(sc, ALS_SB16_DMA_SETUP, 0x01); 695 696 /* Disable write on DMA_SETUP register */ 697 als_mix_wr(sc, ALS_SB16_CONFIG, v & 0x7f); 698 699 /* Enable interrupts */ 700 v = als_gcr_rd(sc, ALS_GCR_MISC); 701 als_gcr_wr(sc, ALS_GCR_MISC, v | 0x28000); 702 703 /* Black out GCR DMA registers */ 704 for (i = 0x91; i <= 0x96; i++) { 705 als_gcr_wr(sc, i, 0); 706 } 707 708 /* Emulation mode */ 709 v = als_gcr_rd(sc, ALS_GCR_DMA_EMULATION); 710 als_gcr_wr(sc, ALS_GCR_DMA_EMULATION, v); 711 DEB(printf("GCR_DMA_EMULATION 0x%08x\n", v)); 712 return 0; 713 } 714 715 static void 716 als_uninit(struct sc_info *sc) 717 { 718 /* Disable interrupts */ 719 als_gcr_wr(sc, ALS_GCR_MISC, 0); 720 } 721 722 /* ------------------------------------------------------------------------- */ 723 /* Probe and attach card */ 724 725 static int 726 als_pci_probe(device_t dev) 727 { 728 if (pci_get_devid(dev) == ALS_PCI_ID0) { 729 device_set_desc(dev, "Avance Logic ALS4000"); 730 return BUS_PROBE_DEFAULT; 731 } 732 return ENXIO; 733 } 734 735 static void 736 als_resource_free(device_t dev, struct sc_info *sc) 737 { 738 if (sc->reg) { 739 bus_release_resource(dev, SYS_RES_IOPORT, sc->regid, sc->reg); 740 sc->reg = NULL; 741 } 742 if (sc->ih) { 743 bus_teardown_intr(dev, sc->irq, sc->ih); 744 sc->ih = NULL; 745 } 746 if (sc->irq) { 747 bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq); 748 sc->irq = NULL; 749 } 750 if (sc->parent_dmat) { 751 bus_dma_tag_destroy(sc->parent_dmat); 752 sc->parent_dmat = 0; 753 } 754 if (sc->lock) { 755 snd_mtxfree(sc->lock); 756 sc->lock = NULL; 757 } 758 } 759 760 static int 761 als_resource_grab(device_t dev, struct sc_info *sc) 762 { 763 sc->regid = PCIR_BAR(0); 764 sc->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->regid, 765 RF_ACTIVE); 766 if (sc->reg == NULL) { 767 device_printf(dev, "unable to allocate register space\n"); 768 goto bad; 769 } 770 sc->st = rman_get_bustag(sc->reg); 771 sc->sh = rman_get_bushandle(sc->reg); 772 773 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid, 774 RF_ACTIVE | RF_SHAREABLE); 775 if (sc->irq == NULL) { 776 device_printf(dev, "unable to allocate interrupt\n"); 777 goto bad; 778 } 779 780 if (snd_setup_intr(dev, sc->irq, INTR_MPSAFE, als_intr, 781 sc, &sc->ih)) { 782 device_printf(dev, "unable to setup interrupt\n"); 783 goto bad; 784 } 785 786 sc->bufsz = pcm_getbuffersize(dev, 4096, ALS_DEFAULT_BUFSZ, 65536); 787 788 if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), 789 /*alignment*/2, /*boundary*/0, 790 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT, 791 /*highaddr*/BUS_SPACE_MAXADDR, 792 /*filter*/NULL, /*filterarg*/NULL, 793 /*maxsize*/sc->bufsz, 794 /*nsegments*/1, /*maxsegz*/0x3ffff, 795 /*flags*/0, /*lockfunc*/NULL, 796 /*lockarg*/NULL, &sc->parent_dmat) != 0) { 797 device_printf(dev, "unable to create dma tag\n"); 798 goto bad; 799 } 800 return 0; 801 bad: 802 als_resource_free(dev, sc); 803 return ENXIO; 804 } 805 806 static int 807 als_pci_attach(device_t dev) 808 { 809 struct sc_info *sc; 810 char status[SND_STATUSLEN]; 811 812 sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); 813 sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_als4000 softc"); 814 sc->dev = dev; 815 816 pci_enable_busmaster(dev); 817 /* 818 * By default the power to the various components on the 819 * ALS4000 is entirely controlled by the pci powerstate. We 820 * could attempt finer grained control by setting GCR6.31. 821 */ 822 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 823 /* Reset the power state. */ 824 device_printf(dev, "chip is in D%d power mode " 825 "-- setting to D0\n", pci_get_powerstate(dev)); 826 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 827 } 828 829 if (als_resource_grab(dev, sc)) { 830 device_printf(dev, "failed to allocate resources\n"); 831 goto bad_attach; 832 } 833 834 if (als_init(sc)) { 835 device_printf(dev, "failed to initialize hardware\n"); 836 goto bad_attach; 837 } 838 839 if (mixer_init(dev, &als_mixer_class, sc)) { 840 device_printf(dev, "failed to initialize mixer\n"); 841 goto bad_attach; 842 } 843 844 if (pcm_register(dev, sc, 1, 1)) { 845 device_printf(dev, "failed to register pcm entries\n"); 846 goto bad_attach; 847 } 848 849 pcm_addchan(dev, PCMDIR_PLAY, &alspchan_class, sc); 850 pcm_addchan(dev, PCMDIR_REC, &alsrchan_class, sc); 851 852 snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd %s", 853 rman_get_start(sc->reg), rman_get_start(sc->irq),PCM_KLDSTRING(snd_als4000)); 854 pcm_setstatus(dev, status); 855 return 0; 856 857 bad_attach: 858 als_resource_free(dev, sc); 859 free(sc, M_DEVBUF); 860 return ENXIO; 861 } 862 863 static int 864 als_pci_detach(device_t dev) 865 { 866 struct sc_info *sc; 867 int r; 868 869 r = pcm_unregister(dev); 870 if (r) 871 return r; 872 873 sc = pcm_getdevinfo(dev); 874 als_uninit(sc); 875 als_resource_free(dev, sc); 876 free(sc, M_DEVBUF); 877 return 0; 878 } 879 880 static int 881 als_pci_suspend(device_t dev) 882 { 883 struct sc_info *sc = pcm_getdevinfo(dev); 884 885 snd_mtxlock(sc->lock); 886 sc->pch.dma_was_active = als_playback_stop(&sc->pch); 887 sc->rch.dma_was_active = als_capture_stop(&sc->rch); 888 als_uninit(sc); 889 snd_mtxunlock(sc->lock); 890 return 0; 891 } 892 893 static int 894 als_pci_resume(device_t dev) 895 { 896 struct sc_info *sc = pcm_getdevinfo(dev); 897 898 snd_mtxlock(sc->lock); 899 if (als_init(sc) != 0) { 900 device_printf(dev, "unable to reinitialize the card\n"); 901 snd_mtxunlock(sc->lock); 902 return ENXIO; 903 } 904 905 if (mixer_reinit(dev) != 0) { 906 device_printf(dev, "unable to reinitialize the mixer\n"); 907 snd_mtxunlock(sc->lock); 908 return ENXIO; 909 } 910 911 if (sc->pch.dma_was_active) { 912 als_playback_start(&sc->pch); 913 } 914 915 if (sc->rch.dma_was_active) { 916 als_capture_start(&sc->rch); 917 } 918 snd_mtxunlock(sc->lock); 919 920 return 0; 921 } 922 923 static device_method_t als_methods[] = { 924 /* Device interface */ 925 DEVMETHOD(device_probe, als_pci_probe), 926 DEVMETHOD(device_attach, als_pci_attach), 927 DEVMETHOD(device_detach, als_pci_detach), 928 DEVMETHOD(device_suspend, als_pci_suspend), 929 DEVMETHOD(device_resume, als_pci_resume), 930 { 0, 0 } 931 }; 932 933 static driver_t als_driver = { 934 "pcm", 935 als_methods, 936 PCM_SOFTC_SIZE, 937 }; 938 939 DRIVER_MODULE(snd_als4000, pci, als_driver, 0, 0); 940 MODULE_DEPEND(snd_als4000, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 941 MODULE_VERSION(snd_als4000, 1);
Cache object: f8f39c0d14a7425655542d4cc7f60c30
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