1 /* 2 * Copyright (c) 2002 Orion Hodson <orion@freebsd.org> 3 * Portions of this code derived from via82c686.c: 4 * Copyright (c) 2000 David Jones <dej@ox.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, 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 29 /* 30 * Credits due to: 31 * 32 * Grzybowski Rafal, Russell Davies, Mark Handley, Daniel O'Connor for 33 * comments, machine time, testing patches, and patience. VIA for 34 * providing specs. ALSA for helpful comments and some register poke 35 * ordering. 36 */ 37 38 #include <dev/sound/pcm/sound.h> 39 #include <dev/sound/pcm/ac97.h> 40 41 #include <pci/pcireg.h> 42 #include <pci/pcivar.h> 43 #include <sys/sysctl.h> 44 45 #include <dev/sound/pci/via8233.h> 46 47 SND_DECLARE_FILE("$FreeBSD$"); 48 49 #define VIA8233_PCI_ID 0x30591106 50 51 #define VIA8233_REV_ID_8233PRE 0x10 52 #define VIA8233_REV_ID_8233C 0x20 53 #define VIA8233_REV_ID_8233 0x30 54 #define VIA8233_REV_ID_8233A 0x40 55 #define VIA8233_REV_ID_8235 0x50 56 57 #define SEGS_PER_CHAN 2 /* Segments per channel */ 58 #define NDXSCHANS 4 /* No of DXS channels */ 59 #define NMSGDCHANS 1 /* No of multichannel SGD */ 60 #define NWRCHANS 1 /* No of write channels */ 61 #define NCHANS (NWRCHANS + NDXSCHANS + NMSGDCHANS) 62 #define NSEGS NCHANS * SEGS_PER_CHAN /* Segments in SGD table */ 63 64 #define VIA_DEFAULT_BUFSZ 0x1000 65 66 /* we rely on this struct being packed to 64 bits */ 67 struct via_dma_op { 68 volatile u_int32_t ptr; 69 volatile u_int32_t flags; 70 #define VIA_DMAOP_EOL 0x80000000 71 #define VIA_DMAOP_FLAG 0x40000000 72 #define VIA_DMAOP_STOP 0x20000000 73 #define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) 74 }; 75 76 struct via_info; 77 78 struct via_chinfo { 79 struct via_info *parent; 80 struct pcm_channel *channel; 81 struct snd_dbuf *buffer; 82 struct via_dma_op *sgd_table; 83 bus_addr_t sgd_addr; 84 int dir, blksz; 85 int rbase; 86 }; 87 88 struct via_info { 89 bus_space_tag_t st; 90 bus_space_handle_t sh; 91 bus_dma_tag_t parent_dmat; 92 bus_dma_tag_t sgd_dmat; 93 bus_dmamap_t sgd_dmamap; 94 bus_addr_t sgd_addr; 95 96 struct resource *reg, *irq; 97 int regid, irqid; 98 void *ih; 99 struct ac97_info *codec; 100 101 unsigned int bufsz; 102 103 struct via_chinfo pch[NDXSCHANS + NMSGDCHANS]; 104 struct via_chinfo rch[NWRCHANS]; 105 struct via_dma_op *sgd_table; 106 u_int16_t codec_caps; 107 u_int16_t n_dxs_registered; 108 }; 109 110 static u_int32_t via_fmt[] = { 111 AFMT_U8, 112 AFMT_STEREO | AFMT_U8, 113 AFMT_S16_LE, 114 AFMT_STEREO | AFMT_S16_LE, 115 0 116 }; 117 118 static struct pcmchan_caps via_vracaps = { 4000, 48000, via_fmt, 0 }; 119 static struct pcmchan_caps via_caps = { 48000, 48000, via_fmt, 0 }; 120 121 static u_int32_t 122 via_rd(struct via_info *via, int regno, int size) 123 { 124 switch (size) { 125 case 1: 126 return bus_space_read_1(via->st, via->sh, regno); 127 case 2: 128 return bus_space_read_2(via->st, via->sh, regno); 129 case 4: 130 return bus_space_read_4(via->st, via->sh, regno); 131 default: 132 return 0xFFFFFFFF; 133 } 134 } 135 136 static void 137 via_wr(struct via_info *via, int regno, u_int32_t data, int size) 138 { 139 140 switch (size) { 141 case 1: 142 bus_space_write_1(via->st, via->sh, regno, data); 143 break; 144 case 2: 145 bus_space_write_2(via->st, via->sh, regno, data); 146 break; 147 case 4: 148 bus_space_write_4(via->st, via->sh, regno, data); 149 break; 150 } 151 } 152 153 /* -------------------------------------------------------------------- */ 154 /* Codec interface */ 155 156 static int 157 via_waitready_codec(struct via_info *via) 158 { 159 int i; 160 161 /* poll until codec not busy */ 162 for (i = 0; i < 1000; i++) { 163 if ((via_rd(via, VIA_AC97_CONTROL, 4) & VIA_AC97_BUSY) == 0) 164 return 0; 165 DELAY(1); 166 } 167 printf("via: codec busy\n"); 168 return 1; 169 } 170 171 static int 172 via_waitvalid_codec(struct via_info *via) 173 { 174 int i; 175 176 /* poll until codec valid */ 177 for (i = 0; i < 1000; i++) { 178 if (via_rd(via, VIA_AC97_CONTROL, 4) & VIA_AC97_CODEC00_VALID) 179 return 0; 180 DELAY(1); 181 } 182 printf("via: codec invalid\n"); 183 return 1; 184 } 185 186 static int 187 via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 188 { 189 struct via_info *via = addr; 190 191 if (via_waitready_codec(via)) return -1; 192 193 via_wr(via, VIA_AC97_CONTROL, 194 VIA_AC97_CODEC00_VALID | VIA_AC97_INDEX(reg) | 195 VIA_AC97_DATA(val), 4); 196 197 return 0; 198 } 199 200 static int 201 via_read_codec(kobj_t obj, void *addr, int reg) 202 { 203 struct via_info *via = addr; 204 205 if (via_waitready_codec(via)) 206 return -1; 207 208 via_wr(via, VIA_AC97_CONTROL, VIA_AC97_CODEC00_VALID | 209 VIA_AC97_READ | VIA_AC97_INDEX(reg), 4); 210 211 if (via_waitready_codec(via)) 212 return -1; 213 214 if (via_waitvalid_codec(via)) 215 return -1; 216 217 return via_rd(via, VIA_AC97_CONTROL, 2); 218 } 219 220 static kobj_method_t via_ac97_methods[] = { 221 KOBJMETHOD(ac97_read, via_read_codec), 222 KOBJMETHOD(ac97_write, via_write_codec), 223 { 0, 0 } 224 }; 225 AC97_DECLARE(via_ac97); 226 227 /* -------------------------------------------------------------------- */ 228 229 static int 230 via_buildsgdt(struct via_chinfo *ch) 231 { 232 u_int32_t phys_addr, flag; 233 int i, seg_size; 234 235 seg_size = sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN; 236 phys_addr = sndbuf_getbufaddr(ch->buffer); 237 238 for (i = 0; i < SEGS_PER_CHAN; i++) { 239 flag = (i == SEGS_PER_CHAN - 1) ? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 240 ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 241 ch->sgd_table[i].flags = flag | seg_size; 242 } 243 244 return 0; 245 } 246 247 /* -------------------------------------------------------------------- */ 248 /* Format setting functions */ 249 250 static int 251 via8233wr_setformat(kobj_t obj, void *data, u_int32_t format) 252 { 253 struct via_chinfo *ch = data; 254 struct via_info *via = ch->parent; 255 256 u_int32_t f = WR_FORMAT_STOP_INDEX; 257 258 if (format & AFMT_STEREO) 259 f |= WR_FORMAT_STEREO; 260 if (format & AFMT_S16_LE) 261 f |= WR_FORMAT_16BIT; 262 via_wr(via, VIA_WR0_FORMAT, f, 4); 263 264 return 0; 265 } 266 267 static int 268 via8233dxs_setformat(kobj_t obj, void *data, u_int32_t format) 269 { 270 struct via_chinfo *ch = data; 271 struct via_info *via = ch->parent; 272 273 u_int32_t r = ch->rbase + VIA8233_RP_DXS_RATEFMT; 274 u_int32_t v = via_rd(via, r, 4); 275 276 v &= ~(VIA8233_DXS_RATEFMT_STEREO | VIA8233_DXS_RATEFMT_16BIT); 277 if (format & AFMT_STEREO) 278 v |= VIA8233_DXS_RATEFMT_STEREO; 279 if (format & AFMT_16BIT) 280 v |= VIA8233_DXS_RATEFMT_16BIT; 281 via_wr(via, r, v, 4); 282 283 return 0; 284 } 285 286 static int 287 via8233msgd_setformat(kobj_t obj, void *data, u_int32_t format) 288 { 289 struct via_chinfo *ch = data; 290 struct via_info *via = ch->parent; 291 292 u_int32_t s = 0xff000000; 293 u_int8_t v = (format & AFMT_S16_LE) ? MC_SGD_16BIT : MC_SGD_8BIT; 294 295 if (format & AFMT_STEREO) { 296 v |= MC_SGD_CHANNELS(2); 297 s |= SLOT3(1) | SLOT4(2); 298 } else { 299 v |= MC_SGD_CHANNELS(1); 300 s |= SLOT3(1) | SLOT4(1); 301 } 302 303 via_wr(via, VIA_MC_SLOT_SELECT, s, 4); 304 via_wr(via, VIA_MC_SGD_FORMAT, v, 1); 305 306 return 0; 307 } 308 309 /* -------------------------------------------------------------------- */ 310 /* Speed setting functions */ 311 312 static int 313 via8233wr_setspeed(kobj_t obj, void *data, u_int32_t speed) 314 { 315 struct via_chinfo *ch = data; 316 struct via_info *via = ch->parent; 317 318 u_int32_t spd = 48000; 319 if (via->codec_caps & AC97_EXTCAP_VRA) { 320 spd = ac97_setrate(via->codec, AC97_REGEXT_LADCRATE, speed); 321 } 322 return spd; 323 } 324 325 static int 326 via8233dxs_setspeed(kobj_t obj, void *data, u_int32_t speed) 327 { 328 struct via_chinfo *ch = data; 329 struct via_info *via = ch->parent; 330 331 u_int32_t r = ch->rbase + VIA8233_RP_DXS_RATEFMT; 332 u_int32_t v = via_rd(via, r, 4) & ~VIA8233_DXS_RATEFMT_48K; 333 334 /* Careful to avoid overflow (divide by 48 per vt8233c docs) */ 335 336 v |= VIA8233_DXS_RATEFMT_48K * (speed / 48) / (48000 / 48); 337 via_wr(via, r, v, 4); 338 339 return speed; 340 } 341 342 static int 343 via8233msgd_setspeed(kobj_t obj, void *data, u_int32_t speed) 344 { 345 struct via_chinfo *ch = data; 346 struct via_info *via = ch->parent; 347 348 if (via->codec_caps & AC97_EXTCAP_VRA) 349 return ac97_setrate(via->codec, AC97_REGEXT_FDACRATE, speed); 350 351 return 48000; 352 } 353 354 /* -------------------------------------------------------------------- */ 355 /* Common functions */ 356 357 static int 358 via8233chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 359 { 360 struct via_chinfo *ch = data; 361 sndbuf_resize(ch->buffer, SEGS_PER_CHAN, blocksize); 362 ch->blksz = sndbuf_getblksz(ch->buffer); 363 return ch->blksz; 364 } 365 366 static int 367 via8233chan_getptr(kobj_t obj, void *data) 368 { 369 struct via_chinfo *ch = data; 370 struct via_info *via = ch->parent; 371 372 u_int32_t v = via_rd(via, ch->rbase + VIA_RP_CURRENT_COUNT, 4); 373 u_int32_t index = v >> 24; /* Last completed buffer */ 374 u_int32_t count = v & 0x00ffffff; /* Bytes remaining */ 375 int ptr = (index + 1) * ch->blksz - count; 376 ptr %= SEGS_PER_CHAN * ch->blksz; /* Wrap to available space */ 377 378 return ptr; 379 } 380 381 static struct pcmchan_caps * 382 via8233chan_getcaps(kobj_t obj, void *data) 383 { 384 struct via_chinfo *ch = data; 385 struct via_info *via = ch->parent; 386 if (via->codec_caps & AC97_EXTCAP_VRA) 387 return &via_vracaps; 388 return &via_caps; 389 } 390 391 static void 392 via8233chan_reset(struct via_info *via, struct via_chinfo *ch) 393 { 394 via_wr(via, ch->rbase + VIA_RP_CONTROL, SGD_CONTROL_STOP, 1); 395 via_wr(via, ch->rbase + VIA_RP_CONTROL, 0x00, 1); 396 via_wr(via, ch->rbase + VIA_RP_STATUS, 397 SGD_STATUS_EOL | SGD_STATUS_FLAG, 1); 398 } 399 400 /* -------------------------------------------------------------------- */ 401 /* Channel initialization functions */ 402 403 static void 404 via8233chan_sgdinit(struct via_info *via, struct via_chinfo *ch, int chnum) 405 { 406 ch->sgd_table = &via->sgd_table[chnum * SEGS_PER_CHAN]; 407 ch->sgd_addr = via->sgd_addr + chnum * SEGS_PER_CHAN * sizeof(struct via_dma_op); 408 } 409 410 static void* 411 via8233wr_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 412 struct pcm_channel *c, int dir) 413 { 414 struct via_info *via = devinfo; 415 struct via_chinfo *ch = &via->rch[c->num]; 416 417 ch->parent = via; 418 ch->channel = c; 419 ch->buffer = b; 420 ch->dir = dir; 421 422 ch->rbase = VIA_WR_BASE(c->num); 423 via_wr(via, ch->rbase + VIA_WR_RP_SGD_FORMAT, WR_FIFO_ENABLE, 1); 424 425 if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 426 return NULL; 427 via8233chan_sgdinit(via, ch, c->num); 428 via8233chan_reset(via, ch); 429 430 return ch; 431 } 432 433 static void* 434 via8233dxs_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 435 struct pcm_channel *c, int dir) 436 { 437 struct via_info *via = devinfo; 438 struct via_chinfo *ch = &via->pch[c->num]; 439 440 ch->parent = via; 441 ch->channel = c; 442 ch->buffer = b; 443 ch->dir = dir; 444 445 /* 446 * All cards apparently support DXS3, but not other DXS 447 * channels. We therefore want to align first DXS channel to 448 * DXS3. 449 */ 450 ch->rbase = VIA_DXS_BASE(NDXSCHANS - 1 - via->n_dxs_registered); 451 via->n_dxs_registered++; 452 453 if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 454 return NULL; 455 via8233chan_sgdinit(via, ch, NWRCHANS + c->num); 456 via8233chan_reset(via, ch); 457 458 return ch; 459 } 460 461 static void* 462 via8233msgd_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, 463 struct pcm_channel *c, int dir) 464 { 465 struct via_info *via = devinfo; 466 struct via_chinfo *ch = &via->pch[c->num]; 467 468 ch->parent = via; 469 ch->channel = c; 470 ch->buffer = b; 471 ch->dir = dir; 472 ch->rbase = VIA_MC_SGD_STATUS; 473 474 if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 475 return NULL; 476 via8233chan_sgdinit(via, ch, NWRCHANS + c->num); 477 via8233chan_reset(via, ch); 478 479 return ch; 480 } 481 482 static void 483 via8233chan_mute(struct via_info *via, struct via_chinfo *ch, int muted) 484 { 485 if (BASE_IS_VIA_DXS_REG(ch->rbase)) { 486 int r; 487 muted = (muted) ? VIA8233_DXS_MUTE : 0; 488 via_wr(via, ch->rbase + VIA8233_RP_DXS_LVOL, muted, 1); 489 via_wr(via, ch->rbase + VIA8233_RP_DXS_RVOL, muted, 1); 490 r = via_rd(via, ch->rbase + VIA8233_RP_DXS_LVOL, 1) & VIA8233_DXS_MUTE; 491 if (r != muted) { 492 printf("via: failed to set dxs volume " 493 "(dxs base 0x%02x).\n", ch->rbase); 494 } 495 } 496 } 497 498 static int 499 via8233chan_trigger(kobj_t obj, void* data, int go) 500 { 501 struct via_chinfo *ch = data; 502 struct via_info *via = ch->parent; 503 504 switch(go) { 505 case PCMTRIG_START: 506 via_buildsgdt(ch); 507 via8233chan_mute(via, ch, 0); 508 via_wr(via, ch->rbase + VIA_RP_TABLE_PTR, ch->sgd_addr, 4); 509 via_wr(via, ch->rbase + VIA_RP_CONTROL, 510 SGD_CONTROL_START | SGD_CONTROL_AUTOSTART | 511 SGD_CONTROL_I_EOL | SGD_CONTROL_I_FLAG, 1); 512 break; 513 case PCMTRIG_STOP: 514 case PCMTRIG_ABORT: 515 via_wr(via, ch->rbase + VIA_RP_CONTROL, SGD_CONTROL_STOP, 1); 516 via8233chan_mute(via, ch, 1); 517 via8233chan_reset(via, ch); 518 break; 519 } 520 return 0; 521 } 522 523 static kobj_method_t via8233wr_methods[] = { 524 KOBJMETHOD(channel_init, via8233wr_init), 525 KOBJMETHOD(channel_setformat, via8233wr_setformat), 526 KOBJMETHOD(channel_setspeed, via8233wr_setspeed), 527 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize), 528 KOBJMETHOD(channel_trigger, via8233chan_trigger), 529 KOBJMETHOD(channel_getptr, via8233chan_getptr), 530 KOBJMETHOD(channel_getcaps, via8233chan_getcaps), 531 { 0, 0 } 532 }; 533 CHANNEL_DECLARE(via8233wr); 534 535 static kobj_method_t via8233dxs_methods[] = { 536 KOBJMETHOD(channel_init, via8233dxs_init), 537 KOBJMETHOD(channel_setformat, via8233dxs_setformat), 538 KOBJMETHOD(channel_setspeed, via8233dxs_setspeed), 539 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize), 540 KOBJMETHOD(channel_trigger, via8233chan_trigger), 541 KOBJMETHOD(channel_getptr, via8233chan_getptr), 542 KOBJMETHOD(channel_getcaps, via8233chan_getcaps), 543 { 0, 0 } 544 }; 545 CHANNEL_DECLARE(via8233dxs); 546 547 static kobj_method_t via8233msgd_methods[] = { 548 KOBJMETHOD(channel_init, via8233msgd_init), 549 KOBJMETHOD(channel_setformat, via8233msgd_setformat), 550 KOBJMETHOD(channel_setspeed, via8233msgd_setspeed), 551 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize), 552 KOBJMETHOD(channel_trigger, via8233chan_trigger), 553 KOBJMETHOD(channel_getptr, via8233chan_getptr), 554 KOBJMETHOD(channel_getcaps, via8233chan_getcaps), 555 { 0, 0 } 556 }; 557 CHANNEL_DECLARE(via8233msgd); 558 559 /* -------------------------------------------------------------------- */ 560 561 static void 562 via_intr(void *p) 563 { 564 struct via_info *via = p; 565 int i, stat; 566 567 /* Poll playback channels */ 568 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++) { 569 if (via->pch[i].rbase == 0) 570 continue; 571 stat = via->pch[i].rbase + VIA_RP_STATUS; 572 if (via_rd(via, stat, 1) & SGD_STATUS_INTR) { 573 via_wr(via, stat, SGD_STATUS_INTR, 1); 574 chn_intr(via->pch[i].channel); 575 } 576 } 577 578 /* Poll record channels */ 579 for (i = 0; i < NWRCHANS; i++) { 580 if (via->rch[i].rbase == 0) 581 continue; 582 stat = via->rch[i].rbase + VIA_RP_STATUS; 583 if (via_rd(via, stat, 1) & SGD_STATUS_INTR) { 584 via_wr(via, stat, SGD_STATUS_INTR, 1); 585 chn_intr(via->rch[i].channel); 586 } 587 } 588 } 589 590 /* 591 * Probe and attach the card 592 */ 593 static int 594 via_probe(device_t dev) 595 { 596 switch(pci_get_devid(dev)) { 597 case VIA8233_PCI_ID: 598 switch(pci_get_revid(dev)) { 599 case VIA8233_REV_ID_8233PRE: 600 device_set_desc(dev, "VIA VT8233 (pre)"); 601 return 0; 602 case VIA8233_REV_ID_8233C: 603 device_set_desc(dev, "VIA VT8233C"); 604 return 0; 605 case VIA8233_REV_ID_8233: 606 device_set_desc(dev, "VIA VT8233"); 607 return 0; 608 case VIA8233_REV_ID_8233A: 609 device_set_desc(dev, "VIA VT8233A"); 610 return 0; 611 case VIA8233_REV_ID_8235: 612 device_set_desc(dev, "VIA VT8235"); 613 return 0; 614 default: 615 device_set_desc(dev, "VIA VT8233X"); /* Unknown */ 616 return 0; 617 } 618 } 619 return ENXIO; 620 } 621 622 static void 623 dma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 624 { 625 struct via_info *via = (struct via_info *)p; 626 via->sgd_addr = bds->ds_addr; 627 } 628 629 static int 630 via_chip_init(device_t dev) 631 { 632 int i, s; 633 634 pci_write_config(dev, VIA_PCI_ACLINK_CTRL, 0, 1); 635 DELAY(100); 636 637 /* assert ACLink reset */ 638 pci_write_config(dev, VIA_PCI_ACLINK_CTRL, VIA_PCI_ACLINK_NRST, 1); 639 DELAY(2); 640 641 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ 642 pci_write_config(dev, VIA_PCI_ACLINK_CTRL, 643 VIA_PCI_ACLINK_NRST | VIA_PCI_ACLINK_SYNC, 1); 644 645 /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 646 pci_write_config(dev, VIA_PCI_ACLINK_CTRL, 647 VIA_PCI_ACLINK_EN | VIA_PCI_ACLINK_NRST 648 | VIA_PCI_ACLINK_VRATE | VIA_PCI_ACLINK_SGD, 1); 649 650 for (i = 0; i < 100; i++) { 651 s = pci_read_config(dev, VIA_PCI_ACLINK_STAT, 1); 652 if (s & VIA_PCI_ACLINK_C00_READY) { 653 s = pci_read_config(dev, VIA_PCI_ACLINK_CTRL, 1); 654 return 0; 655 } 656 DELAY(10); 657 } 658 device_printf(dev, "primary codec not ready (s = 0x%02x)\n", s); 659 return ENXIO; 660 } 661 662 #ifdef SND_DYNSYSCTL 663 static int via8233_spdif_en; 664 665 static int 666 sysctl_via8233_spdif_enable(SYSCTL_HANDLER_ARGS) 667 { 668 device_t dev; 669 int err, new_en, r; 670 671 dev = oidp->oid_arg1; 672 673 674 new_en = via8233_spdif_en; 675 676 err = sysctl_handle_int(oidp, &new_en, sizeof(new_en), req); 677 if (err || req->newptr == NULL) 678 return err; 679 680 if (new_en < 0 || new_en > 1) 681 return EINVAL; 682 via8233_spdif_en = new_en; 683 684 r = pci_read_config(dev, VIA_PCI_SPDIF, 1) & ~VIA_SPDIF_EN; 685 if (new_en) 686 r |= VIA_SPDIF_EN; 687 pci_write_config(dev, VIA_PCI_SPDIF, r, 1); 688 return 0; 689 } 690 #endif /* SND_DYNSYSCTL */ 691 692 static void 693 via_init_sysctls(device_t dev) 694 { 695 #ifdef SND_DYNSYSCTL 696 int r; 697 698 r = pci_read_config(dev, VIA_PCI_SPDIF, 1); 699 via8233_spdif_en = (r & VIA_SPDIF_EN) ? 1 : 0; 700 701 SYSCTL_ADD_PROC(snd_sysctl_tree(dev), 702 SYSCTL_CHILDREN(snd_sysctl_tree_top(dev)), 703 OID_AUTO, "spdif_enabled", 704 CTLTYPE_INT | CTLFLAG_RW, dev, sizeof(dev), 705 sysctl_via8233_spdif_enable, "I", 706 "Enable S/PDIF output on primary playback channel"); 707 #endif 708 } 709 710 static int 711 via_attach(device_t dev) 712 { 713 struct via_info *via = 0; 714 char status[SND_STATUSLEN]; 715 716 if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) { 717 device_printf(dev, "cannot allocate softc\n"); 718 return ENXIO; 719 } 720 721 pci_enable_io(dev, SYS_RES_IOPORT); 722 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 723 pci_enable_busmaster(dev); 724 725 via->regid = PCIR_MAPS; 726 via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid, 0, ~0, 727 1, RF_ACTIVE); 728 if (!via->reg) { 729 device_printf(dev, "cannot allocate bus resource."); 730 goto bad; 731 } 732 via->st = rman_get_bustag(via->reg); 733 via->sh = rman_get_bushandle(via->reg); 734 735 via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 736 737 via->irqid = 0; 738 via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid, 0, ~0, 1, 739 RF_ACTIVE | RF_SHAREABLE); 740 if (!via->irq || 741 snd_setup_intr(dev, via->irq, 0, via_intr, via, &via->ih)) { 742 device_printf(dev, "unable to map interrupt\n"); 743 goto bad; 744 } 745 746 /* DMA tag for buffers */ 747 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 748 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 749 /*highaddr*/BUS_SPACE_MAXADDR, 750 /*filter*/NULL, /*filterarg*/NULL, 751 /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 752 /*flags*/0, &via->parent_dmat) != 0) { 753 device_printf(dev, "unable to create dma tag\n"); 754 goto bad; 755 } 756 757 /* 758 * DMA tag for SGD table. The 686 uses scatter/gather DMA and 759 * requires a list in memory of work to do. We need only 16 bytes 760 * for this list, and it is wasteful to allocate 16K. 761 */ 762 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 763 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 764 /*highaddr*/BUS_SPACE_MAXADDR, 765 /*filter*/NULL, /*filterarg*/NULL, 766 /*maxsize*/NSEGS * sizeof(struct via_dma_op), 767 /*nsegments*/1, /*maxsegz*/0x3ffff, 768 /*flags*/0, &via->sgd_dmat) != 0) { 769 device_printf(dev, "unable to create dma tag\n"); 770 goto bad; 771 } 772 773 if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, 774 BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1) 775 goto bad; 776 if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, 777 NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0)) 778 goto bad; 779 780 if (via_chip_init(dev)) 781 goto bad; 782 783 via->codec = AC97_CREATE(dev, via, via_ac97); 784 if (!via->codec) 785 goto bad; 786 787 mixer_init(dev, ac97_getmixerclass(), via->codec); 788 789 via->codec_caps = ac97_getextcaps(via->codec); 790 791 /* Try to set VRA without generating an error, VRM not reqrd yet */ 792 if (via->codec_caps & 793 (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM | AC97_EXTCAP_DRA)) { 794 u_int16_t ext = ac97_getextmode(via->codec); 795 ext |= (via->codec_caps & 796 (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 797 ext &= ~AC97_EXTCAP_DRA; 798 ac97_setextmode(via->codec, ext); 799 } 800 801 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld", 802 rman_get_start(via->reg), rman_get_start(via->irq)); 803 804 /* Register */ 805 if (pci_get_revid(dev) == VIA8233_REV_ID_8233A) { 806 if (pcm_register(dev, via, NMSGDCHANS + 1, 1)) goto bad; 807 pcm_addchan(dev, PCMDIR_PLAY, &via8233dxs_class, via); 808 pcm_addchan(dev, PCMDIR_PLAY, &via8233msgd_class, via); 809 pcm_addchan(dev, PCMDIR_REC, &via8233wr_class, via); 810 } else { 811 int i; 812 if (pcm_register(dev, via, NMSGDCHANS + NDXSCHANS, NWRCHANS)) goto bad; 813 for (i = 0; i < NDXSCHANS; i++) 814 pcm_addchan(dev, PCMDIR_PLAY, &via8233dxs_class, via); 815 pcm_addchan(dev, PCMDIR_PLAY, &via8233msgd_class, via); 816 for (i = 0; i < NWRCHANS; i++) 817 pcm_addchan(dev, PCMDIR_REC, &via8233wr_class, via); 818 } 819 820 pcm_setstatus(dev, status); 821 via_init_sysctls(dev); 822 823 return 0; 824 bad: 825 if (via->codec) ac97_destroy(via->codec); 826 if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 827 if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 828 if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 829 if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 830 if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 831 if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 832 if (via) free(via, M_DEVBUF); 833 return ENXIO; 834 } 835 836 static int 837 via_detach(device_t dev) 838 { 839 int r; 840 struct via_info *via = 0; 841 842 r = pcm_unregister(dev); 843 if (r) return r; 844 845 via = pcm_getdevinfo(dev); 846 bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 847 bus_teardown_intr(dev, via->irq, via->ih); 848 bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 849 bus_dma_tag_destroy(via->parent_dmat); 850 bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 851 bus_dma_tag_destroy(via->sgd_dmat); 852 free(via, M_DEVBUF); 853 return 0; 854 } 855 856 857 static device_method_t via_methods[] = { 858 DEVMETHOD(device_probe, via_probe), 859 DEVMETHOD(device_attach, via_attach), 860 DEVMETHOD(device_detach, via_detach), 861 { 0, 0} 862 }; 863 864 static driver_t via_driver = { 865 "pcm", 866 via_methods, 867 PCM_SOFTC_SIZE, 868 }; 869 870 DRIVER_MODULE(snd_via8233, pci, via_driver, pcm_devclass, 0, 0); 871 MODULE_DEPEND(snd_via8233, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 872 MODULE_VERSION(snd_via8233, 1); 873