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/cmi.c
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1 /*- 2 * Copyright (c) 2000 Orion Hodson <O.Hodson@cs.ucl.ac.uk> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHERIN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * This driver exists largely as a result of other people's efforts. 27 * Much of register handling is based on NetBSD CMI8x38 audio driver 28 * by Takuya Shiozaki <AoiMoe@imou.to>. Chen-Li Tien 29 * <cltien@cmedia.com.tw> clarified points regarding the DMA related 30 * registers and the 8738 mixer devices. His Linux driver was also a 31 * useful reference point. 32 * 33 * TODO: MIDI 34 * 35 * SPDIF contributed by Gerhard Gonter <gonter@whisky.wu-wien.ac.at>. 36 * 37 * This card/code does not always manage to sample at 44100 - actual 38 * rate drifts slightly between recordings (usually 0-3%). No 39 * differences visible in register dumps between times that work and 40 * those that don't. 41 */ 42 43 #include <dev/sound/pcm/sound.h> 44 #include <dev/sound/pci/cmireg.h> 45 #include <dev/sound/isa/sb.h> 46 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcivar.h> 49 50 #include <sys/sysctl.h> 51 52 #include "mixer_if.h" 53 54 SND_DECLARE_FILE("$FreeBSD$"); 55 56 /* Supported chip ID's */ 57 #define CMI8338A_PCI_ID 0x010013f6 58 #define CMI8338B_PCI_ID 0x010113f6 59 #define CMI8738_PCI_ID 0x011113f6 60 #define CMI8738B_PCI_ID 0x011213f6 61 62 /* Buffer size max is 64k for permitted DMA boundaries */ 63 #define CMI_DEFAULT_BUFSZ 16384 64 65 /* Interrupts per length of buffer */ 66 #define CMI_INTR_PER_BUFFER 2 67 68 /* Clarify meaning of named defines in cmireg.h */ 69 #define CMPCI_REG_DMA0_MAX_SAMPLES CMPCI_REG_DMA0_BYTES 70 #define CMPCI_REG_DMA0_INTR_SAMPLES CMPCI_REG_DMA0_SAMPLES 71 #define CMPCI_REG_DMA1_MAX_SAMPLES CMPCI_REG_DMA1_BYTES 72 #define CMPCI_REG_DMA1_INTR_SAMPLES CMPCI_REG_DMA1_SAMPLES 73 74 /* Our indication of custom mixer control */ 75 #define CMPCI_NON_SB16_CONTROL 0xff 76 77 /* Debugging macro's */ 78 #undef DEB 79 #ifndef DEB 80 #define DEB(x) /* x */ 81 #endif /* DEB */ 82 83 #ifndef DEBMIX 84 #define DEBMIX(x) /* x */ 85 #endif /* DEBMIX */ 86 87 /* ------------------------------------------------------------------------- */ 88 /* Structures */ 89 90 struct sc_info; 91 92 struct sc_chinfo { 93 struct sc_info *parent; 94 struct pcm_channel *channel; 95 struct snd_dbuf *buffer; 96 u_int32_t fmt, spd, phys_buf, bps; 97 u_int32_t dma_active:1, dma_was_active:1; 98 int dir; 99 }; 100 101 struct sc_info { 102 device_t dev; 103 104 bus_space_tag_t st; 105 bus_space_handle_t sh; 106 bus_dma_tag_t parent_dmat; 107 struct resource *reg, *irq; 108 int regid, irqid; 109 void *ih; 110 struct mtx *lock; 111 112 int spdif_enabled; 113 unsigned int bufsz; 114 struct sc_chinfo pch, rch; 115 }; 116 117 /* Channel caps */ 118 119 static u_int32_t cmi_fmt[] = { 120 AFMT_U8, 121 AFMT_STEREO | AFMT_U8, 122 AFMT_S16_LE, 123 AFMT_STEREO | AFMT_S16_LE, 124 0 125 }; 126 127 static struct pcmchan_caps cmi_caps = {5512, 48000, cmi_fmt, 0}; 128 129 /* ------------------------------------------------------------------------- */ 130 /* Register Utilities */ 131 132 static u_int32_t 133 cmi_rd(struct sc_info *sc, int regno, int size) 134 { 135 switch (size) { 136 case 1: 137 return bus_space_read_1(sc->st, sc->sh, regno); 138 case 2: 139 return bus_space_read_2(sc->st, sc->sh, regno); 140 case 4: 141 return bus_space_read_4(sc->st, sc->sh, regno); 142 default: 143 DEB(printf("cmi_rd: failed 0x%04x %d\n", regno, size)); 144 return 0xFFFFFFFF; 145 } 146 } 147 148 static void 149 cmi_wr(struct sc_info *sc, int regno, u_int32_t data, int size) 150 { 151 switch (size) { 152 case 1: 153 bus_space_write_1(sc->st, sc->sh, regno, data); 154 break; 155 case 2: 156 bus_space_write_2(sc->st, sc->sh, regno, data); 157 break; 158 case 4: 159 bus_space_write_4(sc->st, sc->sh, regno, data); 160 break; 161 } 162 } 163 164 static void 165 cmi_partial_wr4(struct sc_info *sc, 166 int reg, int shift, u_int32_t mask, u_int32_t val) 167 { 168 u_int32_t r; 169 170 r = cmi_rd(sc, reg, 4); 171 r &= ~(mask << shift); 172 r |= val << shift; 173 cmi_wr(sc, reg, r, 4); 174 } 175 176 static void 177 cmi_clr4(struct sc_info *sc, int reg, u_int32_t mask) 178 { 179 u_int32_t r; 180 181 r = cmi_rd(sc, reg, 4); 182 r &= ~mask; 183 cmi_wr(sc, reg, r, 4); 184 } 185 186 static void 187 cmi_set4(struct sc_info *sc, int reg, u_int32_t mask) 188 { 189 u_int32_t r; 190 191 r = cmi_rd(sc, reg, 4); 192 r |= mask; 193 cmi_wr(sc, reg, r, 4); 194 } 195 196 /* ------------------------------------------------------------------------- */ 197 /* Rate Mapping */ 198 199 static int cmi_rates[] = {5512, 8000, 11025, 16000, 200 22050, 32000, 44100, 48000}; 201 #define NUM_CMI_RATES (sizeof(cmi_rates)/sizeof(cmi_rates[0])) 202 203 /* cmpci_rate_to_regvalue returns sampling freq selector for FCR1 204 * register - reg order is 5k,11k,22k,44k,8k,16k,32k,48k */ 205 206 static u_int32_t 207 cmpci_rate_to_regvalue(int rate) 208 { 209 int i, r; 210 211 for(i = 0; i < NUM_CMI_RATES - 1; i++) { 212 if (rate < ((cmi_rates[i] + cmi_rates[i + 1]) / 2)) { 213 break; 214 } 215 } 216 217 DEB(printf("cmpci_rate_to_regvalue: %d -> %d\n", rate, cmi_rates[i])); 218 219 r = ((i >> 1) | (i << 2)) & 0x07; 220 return r; 221 } 222 223 static int 224 cmpci_regvalue_to_rate(u_int32_t r) 225 { 226 int i; 227 228 i = ((r << 1) | (r >> 2)) & 0x07; 229 DEB(printf("cmpci_regvalue_to_rate: %d -> %d\n", r, i)); 230 return cmi_rates[i]; 231 } 232 233 /* ------------------------------------------------------------------------- */ 234 /* ADC/DAC control - there are 2 dma channels on 8738, either can be 235 * playback or capture. We use ch0 for playback and ch1 for capture. */ 236 237 static void 238 cmi_dma_prog(struct sc_info *sc, struct sc_chinfo *ch, u_int32_t base) 239 { 240 u_int32_t s, i, sz; 241 242 ch->phys_buf = sndbuf_getbufaddr(ch->buffer); 243 244 cmi_wr(sc, base, ch->phys_buf, 4); 245 sz = (u_int32_t)sndbuf_getsize(ch->buffer); 246 247 s = sz / ch->bps - 1; 248 cmi_wr(sc, base + 4, s, 2); 249 250 i = sz / (ch->bps * CMI_INTR_PER_BUFFER) - 1; 251 cmi_wr(sc, base + 6, i, 2); 252 } 253 254 255 static void 256 cmi_ch0_start(struct sc_info *sc, struct sc_chinfo *ch) 257 { 258 cmi_dma_prog(sc, ch, CMPCI_REG_DMA0_BASE); 259 260 cmi_set4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_ENABLE); 261 cmi_set4(sc, CMPCI_REG_INTR_CTRL, 262 CMPCI_REG_CH0_INTR_ENABLE); 263 264 ch->dma_active = 1; 265 } 266 267 static u_int32_t 268 cmi_ch0_stop(struct sc_info *sc, struct sc_chinfo *ch) 269 { 270 u_int32_t r = ch->dma_active; 271 272 cmi_clr4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH0_INTR_ENABLE); 273 cmi_clr4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_ENABLE); 274 cmi_set4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_RESET); 275 cmi_clr4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_RESET); 276 ch->dma_active = 0; 277 return r; 278 } 279 280 static void 281 cmi_ch1_start(struct sc_info *sc, struct sc_chinfo *ch) 282 { 283 cmi_dma_prog(sc, ch, CMPCI_REG_DMA1_BASE); 284 cmi_set4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_ENABLE); 285 /* Enable Interrupts */ 286 cmi_set4(sc, CMPCI_REG_INTR_CTRL, 287 CMPCI_REG_CH1_INTR_ENABLE); 288 DEB(printf("cmi_ch1_start: dma prog\n")); 289 ch->dma_active = 1; 290 } 291 292 static u_int32_t 293 cmi_ch1_stop(struct sc_info *sc, struct sc_chinfo *ch) 294 { 295 u_int32_t r = ch->dma_active; 296 297 cmi_clr4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH1_INTR_ENABLE); 298 cmi_clr4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_ENABLE); 299 cmi_set4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_RESET); 300 cmi_clr4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_RESET); 301 ch->dma_active = 0; 302 return r; 303 } 304 305 static void 306 cmi_spdif_speed(struct sc_info *sc, int speed) { 307 u_int32_t fcr1, lcr, mcr; 308 309 if (speed >= 44100) { 310 fcr1 = CMPCI_REG_SPDIF0_ENABLE; 311 lcr = CMPCI_REG_XSPDIF_ENABLE; 312 mcr = (speed == 48000) ? 313 CMPCI_REG_W_SPDIF_48L | CMPCI_REG_SPDIF_48K : 0; 314 } else { 315 fcr1 = mcr = lcr = 0; 316 } 317 318 cmi_partial_wr4(sc, CMPCI_REG_MISC, 0, 319 CMPCI_REG_W_SPDIF_48L | CMPCI_REG_SPDIF_48K, mcr); 320 cmi_partial_wr4(sc, CMPCI_REG_FUNC_1, 0, 321 CMPCI_REG_SPDIF0_ENABLE, fcr1); 322 cmi_partial_wr4(sc, CMPCI_REG_LEGACY_CTRL, 0, 323 CMPCI_REG_XSPDIF_ENABLE, lcr); 324 } 325 326 /* ------------------------------------------------------------------------- */ 327 /* Channel Interface implementation */ 328 329 static void * 330 cmichan_init(kobj_t obj, void *devinfo, 331 struct snd_dbuf *b, struct pcm_channel *c, int dir) 332 { 333 struct sc_info *sc = devinfo; 334 struct sc_chinfo *ch = (dir == PCMDIR_PLAY) ? &sc->pch : &sc->rch; 335 336 ch->parent = sc; 337 ch->channel = c; 338 ch->bps = 1; 339 ch->fmt = AFMT_U8; 340 ch->spd = DSP_DEFAULT_SPEED; 341 ch->buffer = b; 342 ch->dma_active = 0; 343 if (sndbuf_alloc(ch->buffer, sc->parent_dmat, sc->bufsz) != 0) { 344 DEB(printf("cmichan_init failed\n")); 345 return NULL; 346 } 347 348 ch->dir = dir; 349 snd_mtxlock(sc->lock); 350 if (ch->dir == PCMDIR_PLAY) { 351 cmi_dma_prog(sc, ch, CMPCI_REG_DMA0_BASE); 352 } else { 353 cmi_dma_prog(sc, ch, CMPCI_REG_DMA1_BASE); 354 } 355 snd_mtxunlock(sc->lock); 356 357 return ch; 358 } 359 360 static int 361 cmichan_setformat(kobj_t obj, void *data, u_int32_t format) 362 { 363 struct sc_chinfo *ch = data; 364 struct sc_info *sc = ch->parent; 365 u_int32_t f; 366 367 if (format & AFMT_S16_LE) { 368 f = CMPCI_REG_FORMAT_16BIT; 369 ch->bps = 2; 370 } else { 371 f = CMPCI_REG_FORMAT_8BIT; 372 ch->bps = 1; 373 } 374 375 if (format & AFMT_STEREO) { 376 f |= CMPCI_REG_FORMAT_STEREO; 377 ch->bps *= 2; 378 } else { 379 f |= CMPCI_REG_FORMAT_MONO; 380 } 381 382 snd_mtxlock(sc->lock); 383 if (ch->dir == PCMDIR_PLAY) { 384 cmi_partial_wr4(ch->parent, 385 CMPCI_REG_CHANNEL_FORMAT, 386 CMPCI_REG_CH0_FORMAT_SHIFT, 387 CMPCI_REG_CH0_FORMAT_MASK, 388 f); 389 } else { 390 cmi_partial_wr4(ch->parent, 391 CMPCI_REG_CHANNEL_FORMAT, 392 CMPCI_REG_CH1_FORMAT_SHIFT, 393 CMPCI_REG_CH1_FORMAT_MASK, 394 f); 395 } 396 snd_mtxunlock(sc->lock); 397 ch->fmt = format; 398 399 return 0; 400 } 401 402 static int 403 cmichan_setspeed(kobj_t obj, void *data, u_int32_t speed) 404 { 405 struct sc_chinfo *ch = data; 406 struct sc_info *sc = ch->parent; 407 u_int32_t r, rsp; 408 409 r = cmpci_rate_to_regvalue(speed); 410 snd_mtxlock(sc->lock); 411 if (ch->dir == PCMDIR_PLAY) { 412 if (speed < 44100) { 413 /* disable if req before rate change */ 414 cmi_spdif_speed(ch->parent, speed); 415 } 416 cmi_partial_wr4(ch->parent, 417 CMPCI_REG_FUNC_1, 418 CMPCI_REG_DAC_FS_SHIFT, 419 CMPCI_REG_DAC_FS_MASK, 420 r); 421 if (speed >= 44100 && ch->parent->spdif_enabled) { 422 /* enable if req after rate change */ 423 cmi_spdif_speed(ch->parent, speed); 424 } 425 rsp = cmi_rd(ch->parent, CMPCI_REG_FUNC_1, 4); 426 rsp >>= CMPCI_REG_DAC_FS_SHIFT; 427 rsp &= CMPCI_REG_DAC_FS_MASK; 428 } else { 429 cmi_partial_wr4(ch->parent, 430 CMPCI_REG_FUNC_1, 431 CMPCI_REG_ADC_FS_SHIFT, 432 CMPCI_REG_ADC_FS_MASK, 433 r); 434 rsp = cmi_rd(ch->parent, CMPCI_REG_FUNC_1, 4); 435 rsp >>= CMPCI_REG_ADC_FS_SHIFT; 436 rsp &= CMPCI_REG_ADC_FS_MASK; 437 } 438 snd_mtxunlock(sc->lock); 439 ch->spd = cmpci_regvalue_to_rate(r); 440 441 DEB(printf("cmichan_setspeed (%s) %d -> %d (%d)\n", 442 (ch->dir == PCMDIR_PLAY) ? "play" : "rec", 443 speed, ch->spd, cmpci_regvalue_to_rate(rsp))); 444 445 return ch->spd; 446 } 447 448 static int 449 cmichan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 450 { 451 struct sc_chinfo *ch = data; 452 struct sc_info *sc = ch->parent; 453 454 /* user has requested interrupts every blocksize bytes */ 455 if (blocksize > sc->bufsz / CMI_INTR_PER_BUFFER) { 456 blocksize = sc->bufsz / CMI_INTR_PER_BUFFER; 457 } 458 sndbuf_resize(ch->buffer, CMI_INTR_PER_BUFFER, blocksize); 459 460 return blocksize; 461 } 462 463 static int 464 cmichan_trigger(kobj_t obj, void *data, int go) 465 { 466 struct sc_chinfo *ch = data; 467 struct sc_info *sc = ch->parent; 468 469 snd_mtxlock(sc->lock); 470 if (ch->dir == PCMDIR_PLAY) { 471 switch(go) { 472 case PCMTRIG_START: 473 cmi_ch0_start(sc, ch); 474 break; 475 case PCMTRIG_ABORT: 476 cmi_ch0_stop(sc, ch); 477 break; 478 } 479 } else { 480 switch(go) { 481 case PCMTRIG_START: 482 cmi_ch1_start(sc, ch); 483 break; 484 case PCMTRIG_ABORT: 485 cmi_ch1_stop(sc, ch); 486 break; 487 } 488 } 489 snd_mtxunlock(sc->lock); 490 return 0; 491 } 492 493 static int 494 cmichan_getptr(kobj_t obj, void *data) 495 { 496 struct sc_chinfo *ch = data; 497 struct sc_info *sc = ch->parent; 498 u_int32_t physptr, bufptr, sz; 499 500 snd_mtxlock(sc->lock); 501 if (ch->dir == PCMDIR_PLAY) { 502 physptr = cmi_rd(sc, CMPCI_REG_DMA0_BASE, 4); 503 } else { 504 physptr = cmi_rd(sc, CMPCI_REG_DMA1_BASE, 4); 505 } 506 snd_mtxunlock(sc->lock); 507 508 sz = sndbuf_getsize(ch->buffer); 509 bufptr = (physptr - ch->phys_buf + sz - ch->bps) % sz; 510 511 return bufptr; 512 } 513 514 static void 515 cmi_intr(void *data) 516 { 517 struct sc_info *sc = data; 518 u_int32_t intrstat; 519 u_int32_t toclear; 520 521 snd_mtxlock(sc->lock); 522 intrstat = cmi_rd(sc, CMPCI_REG_INTR_STATUS, 4); 523 if ((intrstat & CMPCI_REG_ANY_INTR) != 0) { 524 525 toclear = 0; 526 if (intrstat & CMPCI_REG_CH0_INTR) { 527 toclear |= CMPCI_REG_CH0_INTR_ENABLE; 528 //cmi_clr4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH0_INTR_ENABLE); 529 } 530 531 if (intrstat & CMPCI_REG_CH1_INTR) { 532 toclear |= CMPCI_REG_CH1_INTR_ENABLE; 533 //cmi_clr4(sc, CMPCI_REG_INTR_CTRL, CMPCI_REG_CH1_INTR_ENABLE); 534 } 535 536 if (toclear) { 537 cmi_clr4(sc, CMPCI_REG_INTR_CTRL, toclear); 538 snd_mtxunlock(sc->lock); 539 540 /* Signal interrupts to channel */ 541 if (intrstat & CMPCI_REG_CH0_INTR) { 542 chn_intr(sc->pch.channel); 543 } 544 545 if (intrstat & CMPCI_REG_CH1_INTR) { 546 chn_intr(sc->rch.channel); 547 } 548 549 snd_mtxlock(sc->lock); 550 cmi_set4(sc, CMPCI_REG_INTR_CTRL, toclear); 551 552 } 553 } 554 snd_mtxunlock(sc->lock); 555 return; 556 } 557 558 static struct pcmchan_caps * 559 cmichan_getcaps(kobj_t obj, void *data) 560 { 561 return &cmi_caps; 562 } 563 564 static kobj_method_t cmichan_methods[] = { 565 KOBJMETHOD(channel_init, cmichan_init), 566 KOBJMETHOD(channel_setformat, cmichan_setformat), 567 KOBJMETHOD(channel_setspeed, cmichan_setspeed), 568 KOBJMETHOD(channel_setblocksize, cmichan_setblocksize), 569 KOBJMETHOD(channel_trigger, cmichan_trigger), 570 KOBJMETHOD(channel_getptr, cmichan_getptr), 571 KOBJMETHOD(channel_getcaps, cmichan_getcaps), 572 { 0, 0 } 573 }; 574 CHANNEL_DECLARE(cmichan); 575 576 /* ------------------------------------------------------------------------- */ 577 /* Mixer - sb16 with kinks */ 578 579 static void 580 cmimix_wr(struct sc_info *sc, u_int8_t port, u_int8_t val) 581 { 582 cmi_wr(sc, CMPCI_REG_SBADDR, port, 1); 583 cmi_wr(sc, CMPCI_REG_SBDATA, val, 1); 584 } 585 586 static u_int8_t 587 cmimix_rd(struct sc_info *sc, u_int8_t port) 588 { 589 cmi_wr(sc, CMPCI_REG_SBADDR, port, 1); 590 return (u_int8_t)cmi_rd(sc, CMPCI_REG_SBDATA, 1); 591 } 592 593 struct sb16props { 594 u_int8_t rreg; /* right reg chan register */ 595 u_int8_t stereo:1; /* (no explanation needed, honest) */ 596 u_int8_t rec:1; /* recording source */ 597 u_int8_t bits:3; /* num bits to represent maximum gain rep */ 598 u_int8_t oselect; /* output select mask */ 599 u_int8_t iselect; /* right input select mask */ 600 } static const cmt[SOUND_MIXER_NRDEVICES] = { 601 [SOUND_MIXER_SYNTH] = {CMPCI_SB16_MIXER_FM_R, 1, 1, 5, 602 CMPCI_SB16_SW_FM, CMPCI_SB16_MIXER_FM_SRC_R}, 603 [SOUND_MIXER_CD] = {CMPCI_SB16_MIXER_CDDA_R, 1, 1, 5, 604 CMPCI_SB16_SW_CD, CMPCI_SB16_MIXER_CD_SRC_R}, 605 [SOUND_MIXER_LINE] = {CMPCI_SB16_MIXER_LINE_R, 1, 1, 5, 606 CMPCI_SB16_SW_LINE, CMPCI_SB16_MIXER_LINE_SRC_R}, 607 [SOUND_MIXER_MIC] = {CMPCI_SB16_MIXER_MIC, 0, 1, 5, 608 CMPCI_SB16_SW_MIC, CMPCI_SB16_MIXER_MIC_SRC}, 609 [SOUND_MIXER_SPEAKER] = {CMPCI_SB16_MIXER_SPEAKER, 0, 0, 2, 0, 0}, 610 [SOUND_MIXER_PCM] = {CMPCI_SB16_MIXER_VOICE_R, 1, 0, 5, 0, 0}, 611 [SOUND_MIXER_VOLUME] = {CMPCI_SB16_MIXER_MASTER_R, 1, 0, 5, 0, 0}, 612 /* These controls are not implemented in CMI8738, but maybe at a 613 future date. They are not documented in C-Media documentation, 614 though appear in other drivers for future h/w (ALSA, Linux, NetBSD). 615 */ 616 [SOUND_MIXER_IGAIN] = {CMPCI_SB16_MIXER_INGAIN_R, 1, 0, 2, 0, 0}, 617 [SOUND_MIXER_OGAIN] = {CMPCI_SB16_MIXER_OUTGAIN_R, 1, 0, 2, 0, 0}, 618 [SOUND_MIXER_BASS] = {CMPCI_SB16_MIXER_BASS_R, 1, 0, 4, 0, 0}, 619 [SOUND_MIXER_TREBLE] = {CMPCI_SB16_MIXER_TREBLE_R, 1, 0, 4, 0, 0}, 620 /* The mic pre-amp is implemented with non-SB16 compatible 621 registers. */ 622 [SOUND_MIXER_MONITOR] = {CMPCI_NON_SB16_CONTROL, 0, 1, 4, 0}, 623 }; 624 625 #define MIXER_GAIN_REG_RTOL(r) (r - 1) 626 627 static int 628 cmimix_init(struct snd_mixer *m) 629 { 630 struct sc_info *sc = mix_getdevinfo(m); 631 u_int32_t i,v; 632 633 for(i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) { 634 if (cmt[i].bits) v |= 1 << i; 635 } 636 mix_setdevs(m, v); 637 638 for(i = v = 0; i < SOUND_MIXER_NRDEVICES; i++) { 639 if (cmt[i].rec) v |= 1 << i; 640 } 641 mix_setrecdevs(m, v); 642 643 cmimix_wr(sc, CMPCI_SB16_MIXER_RESET, 0); 644 cmimix_wr(sc, CMPCI_SB16_MIXER_ADCMIX_L, 0); 645 cmimix_wr(sc, CMPCI_SB16_MIXER_ADCMIX_R, 0); 646 cmimix_wr(sc, CMPCI_SB16_MIXER_OUTMIX, 647 CMPCI_SB16_SW_CD | CMPCI_SB16_SW_MIC | CMPCI_SB16_SW_LINE); 648 return 0; 649 } 650 651 static int 652 cmimix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right) 653 { 654 struct sc_info *sc = mix_getdevinfo(m); 655 u_int32_t r, l, max; 656 u_int8_t v; 657 658 max = (1 << cmt[dev].bits) - 1; 659 660 if (cmt[dev].rreg == CMPCI_NON_SB16_CONTROL) { 661 /* For time being this can only be one thing (mic in 662 * mic/aux reg) */ 663 v = cmi_rd(sc, CMPCI_REG_AUX_MIC, 1) & 0xf0; 664 l = left * max / 100; 665 /* 3 bit gain with LSB MICGAIN off(1),on(1) -> 4 bit value */ 666 v |= ((l << 1) | (~l >> 3)) & 0x0f; 667 cmi_wr(sc, CMPCI_REG_AUX_MIC, v, 1); 668 return 0; 669 } 670 671 l = (left * max / 100) << (8 - cmt[dev].bits); 672 if (cmt[dev].stereo) { 673 r = (right * max / 100) << (8 - cmt[dev].bits); 674 cmimix_wr(sc, MIXER_GAIN_REG_RTOL(cmt[dev].rreg), l); 675 cmimix_wr(sc, cmt[dev].rreg, r); 676 DEBMIX(printf("Mixer stereo write dev %d reg 0x%02x "\ 677 "value 0x%02x:0x%02x\n", 678 dev, MIXER_GAIN_REG_RTOL(cmt[dev].rreg), l, r)); 679 } else { 680 r = l; 681 cmimix_wr(sc, cmt[dev].rreg, l); 682 DEBMIX(printf("Mixer mono write dev %d reg 0x%02x " \ 683 "value 0x%02x:0x%02x\n", 684 dev, cmt[dev].rreg, l, l)); 685 } 686 687 /* Zero gain does not mute channel from output, but this does... */ 688 v = cmimix_rd(sc, CMPCI_SB16_MIXER_OUTMIX); 689 if (l == 0 && r == 0) { 690 v &= ~cmt[dev].oselect; 691 } else { 692 v |= cmt[dev].oselect; 693 } 694 cmimix_wr(sc, CMPCI_SB16_MIXER_OUTMIX, v); 695 696 return 0; 697 } 698 699 static int 700 cmimix_setrecsrc(struct snd_mixer *m, u_int32_t src) 701 { 702 struct sc_info *sc = mix_getdevinfo(m); 703 u_int32_t i, ml, sl; 704 705 ml = sl = 0; 706 for(i = 0; i < SOUND_MIXER_NRDEVICES; i++) { 707 if ((1<<i) & src) { 708 if (cmt[i].stereo) { 709 sl |= cmt[i].iselect; 710 } else { 711 ml |= cmt[i].iselect; 712 } 713 } 714 } 715 cmimix_wr(sc, CMPCI_SB16_MIXER_ADCMIX_R, sl|ml); 716 DEBMIX(printf("cmimix_setrecsrc: reg 0x%02x val 0x%02x\n", 717 CMPCI_SB16_MIXER_ADCMIX_R, sl|ml)); 718 ml = CMPCI_SB16_MIXER_SRC_R_TO_L(ml); 719 cmimix_wr(sc, CMPCI_SB16_MIXER_ADCMIX_L, sl|ml); 720 DEBMIX(printf("cmimix_setrecsrc: reg 0x%02x val 0x%02x\n", 721 CMPCI_SB16_MIXER_ADCMIX_L, sl|ml)); 722 723 return src; 724 } 725 726 /* Optional SPDIF support. */ 727 728 static int 729 cmi_initsys(struct sc_info* sc) 730 { 731 #ifdef SND_DYNSYSCTL 732 SYSCTL_ADD_INT(snd_sysctl_tree(sc->dev), 733 SYSCTL_CHILDREN(snd_sysctl_tree_top(sc->dev)), 734 OID_AUTO, "spdif_enabled", CTLFLAG_RW, 735 &sc->spdif_enabled, 0, 736 "enable SPDIF output at 44.1 kHz and above"); 737 #endif /* SND_DYNSYSCTL */ 738 return 0; 739 } 740 741 /* ------------------------------------------------------------------------- */ 742 static kobj_method_t cmi_mixer_methods[] = { 743 KOBJMETHOD(mixer_init, cmimix_init), 744 KOBJMETHOD(mixer_set, cmimix_set), 745 KOBJMETHOD(mixer_setrecsrc, cmimix_setrecsrc), 746 { 0, 0 } 747 }; 748 MIXER_DECLARE(cmi_mixer); 749 750 /* ------------------------------------------------------------------------- */ 751 /* Power and reset */ 752 753 static void 754 cmi_power(struct sc_info *sc, int state) 755 { 756 switch (state) { 757 case 0: /* full power */ 758 cmi_clr4(sc, CMPCI_REG_MISC, CMPCI_REG_POWER_DOWN); 759 break; 760 default: 761 /* power off */ 762 cmi_set4(sc, CMPCI_REG_MISC, CMPCI_REG_POWER_DOWN); 763 break; 764 } 765 } 766 767 static int 768 cmi_init(struct sc_info *sc) 769 { 770 /* Effect reset */ 771 cmi_set4(sc, CMPCI_REG_MISC, CMPCI_REG_BUS_AND_DSP_RESET); 772 DELAY(100); 773 cmi_clr4(sc, CMPCI_REG_MISC, CMPCI_REG_BUS_AND_DSP_RESET); 774 775 /* Disable interrupts and channels */ 776 cmi_clr4(sc, CMPCI_REG_FUNC_0, 777 CMPCI_REG_CH0_ENABLE | CMPCI_REG_CH1_ENABLE); 778 cmi_clr4(sc, CMPCI_REG_INTR_CTRL, 779 CMPCI_REG_CH0_INTR_ENABLE | CMPCI_REG_CH1_INTR_ENABLE); 780 781 /* Configure DMA channels, ch0 = play, ch1 = capture */ 782 cmi_clr4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH0_DIR); 783 cmi_set4(sc, CMPCI_REG_FUNC_0, CMPCI_REG_CH1_DIR); 784 785 /* Attempt to enable 4 Channel output */ 786 cmi_set4(sc, CMPCI_REG_MISC, CMPCI_REG_N4SPK3D); 787 788 /* Disable SPDIF1 - not compatible with config */ 789 cmi_clr4(sc, CMPCI_REG_FUNC_1, CMPCI_REG_SPDIF1_ENABLE); 790 cmi_clr4(sc, CMPCI_REG_FUNC_1, CMPCI_REG_SPDIF_LOOP); 791 792 return 0; 793 } 794 795 static void 796 cmi_uninit(struct sc_info *sc) 797 { 798 /* Disable interrupts and channels */ 799 cmi_clr4(sc, CMPCI_REG_INTR_CTRL, 800 CMPCI_REG_CH0_INTR_ENABLE | 801 CMPCI_REG_CH1_INTR_ENABLE | 802 CMPCI_REG_TDMA_INTR_ENABLE); 803 cmi_clr4(sc, CMPCI_REG_FUNC_0, 804 CMPCI_REG_CH0_ENABLE | CMPCI_REG_CH1_ENABLE); 805 } 806 807 /* ------------------------------------------------------------------------- */ 808 /* Bus and device registration */ 809 static int 810 cmi_probe(device_t dev) 811 { 812 switch(pci_get_devid(dev)) { 813 case CMI8338A_PCI_ID: 814 device_set_desc(dev, "CMedia CMI8338A"); 815 return 0; 816 case CMI8338B_PCI_ID: 817 device_set_desc(dev, "CMedia CMI8338B"); 818 return 0; 819 case CMI8738_PCI_ID: 820 device_set_desc(dev, "CMedia CMI8738"); 821 return 0; 822 case CMI8738B_PCI_ID: 823 device_set_desc(dev, "CMedia CMI8738B"); 824 return 0; 825 default: 826 return ENXIO; 827 } 828 } 829 830 static int 831 cmi_attach(device_t dev) 832 { 833 struct snddev_info *d; 834 struct sc_info *sc; 835 u_int32_t data; 836 char status[SND_STATUSLEN]; 837 838 d = device_get_softc(dev); 839 sc = malloc(sizeof(struct sc_info), M_DEVBUF, M_NOWAIT | M_ZERO); 840 if (sc == NULL) { 841 device_printf(dev, "cannot allocate softc\n"); 842 return ENXIO; 843 } 844 845 sc->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc"); 846 data = pci_read_config(dev, PCIR_COMMAND, 2); 847 data |= (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN); 848 pci_write_config(dev, PCIR_COMMAND, data, 2); 849 data = pci_read_config(dev, PCIR_COMMAND, 2); 850 851 sc->dev = dev; 852 sc->regid = PCIR_BAR(0); 853 sc->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->regid, 854 0, BUS_SPACE_UNRESTRICTED, 1, RF_ACTIVE); 855 if (!sc->reg) { 856 device_printf(dev, "cmi_attach: Cannot allocate bus resource\n"); 857 goto bad; 858 } 859 sc->st = rman_get_bustag(sc->reg); 860 sc->sh = rman_get_bushandle(sc->reg); 861 862 sc->irqid = 0; 863 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid, 864 RF_ACTIVE | RF_SHAREABLE); 865 if (!sc->irq || 866 snd_setup_intr(dev, sc->irq, INTR_MPSAFE, cmi_intr, sc, &sc->ih)) { 867 device_printf(dev, "cmi_attach: Unable to map interrupt\n"); 868 goto bad; 869 } 870 871 sc->bufsz = pcm_getbuffersize(dev, 4096, CMI_DEFAULT_BUFSZ, 65536); 872 873 if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 874 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 875 /*highaddr*/BUS_SPACE_MAXADDR, 876 /*filter*/NULL, /*filterarg*/NULL, 877 /*maxsize*/sc->bufsz, /*nsegments*/1, 878 /*maxsegz*/0x3ffff, /*flags*/0, 879 /*lockfunc*/busdma_lock_mutex, 880 /*lockfunc*/&Giant, 881 &sc->parent_dmat) != 0) { 882 device_printf(dev, "cmi_attach: Unable to create dma tag\n"); 883 goto bad; 884 } 885 886 cmi_power(sc, 0); 887 if (cmi_init(sc)) 888 goto bad; 889 890 if (mixer_init(dev, &cmi_mixer_class, sc)) 891 goto bad; 892 893 if (pcm_register(dev, sc, 1, 1)) 894 goto bad; 895 896 cmi_initsys(sc); 897 898 pcm_addchan(dev, PCMDIR_PLAY, &cmichan_class, sc); 899 pcm_addchan(dev, PCMDIR_REC, &cmichan_class, sc); 900 901 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s", 902 rman_get_start(sc->reg), rman_get_start(sc->irq),PCM_KLDSTRING(snd_cmi)); 903 pcm_setstatus(dev, status); 904 905 DEB(printf("cmi_attach: succeeded\n")); 906 return 0; 907 908 bad: 909 if (sc->parent_dmat) 910 bus_dma_tag_destroy(sc->parent_dmat); 911 if (sc->ih) 912 bus_teardown_intr(dev, sc->irq, sc->ih); 913 if (sc->irq) 914 bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq); 915 if (sc->reg) 916 bus_release_resource(dev, SYS_RES_IOPORT, sc->regid, sc->reg); 917 if (sc->lock) 918 snd_mtxfree(sc->lock); 919 if (sc) 920 free(sc, M_DEVBUF); 921 922 return ENXIO; 923 } 924 925 static int 926 cmi_detach(device_t dev) 927 { 928 struct sc_info *sc; 929 int r; 930 931 r = pcm_unregister(dev); 932 if (r) return r; 933 934 sc = pcm_getdevinfo(dev); 935 cmi_uninit(sc); 936 cmi_power(sc, 3); 937 938 bus_dma_tag_destroy(sc->parent_dmat); 939 bus_teardown_intr(dev, sc->irq, sc->ih); 940 bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq); 941 bus_release_resource(dev, SYS_RES_IOPORT, sc->regid, sc->reg); 942 snd_mtxfree(sc->lock); 943 free(sc, M_DEVBUF); 944 945 return 0; 946 } 947 948 static int 949 cmi_suspend(device_t dev) 950 { 951 struct sc_info *sc = pcm_getdevinfo(dev); 952 953 snd_mtxlock(sc->lock); 954 sc->pch.dma_was_active = cmi_ch0_stop(sc, &sc->pch); 955 sc->rch.dma_was_active = cmi_ch1_stop(sc, &sc->rch); 956 cmi_power(sc, 3); 957 snd_mtxunlock(sc->lock); 958 return 0; 959 } 960 961 static int 962 cmi_resume(device_t dev) 963 { 964 struct sc_info *sc = pcm_getdevinfo(dev); 965 966 snd_mtxlock(sc->lock); 967 cmi_power(sc, 0); 968 if (cmi_init(sc) != 0) { 969 device_printf(dev, "unable to reinitialize the card\n"); 970 snd_mtxunlock(sc->lock); 971 return ENXIO; 972 } 973 974 if (mixer_reinit(dev) == -1) { 975 device_printf(dev, "unable to reinitialize the mixer\n"); 976 snd_mtxunlock(sc->lock); 977 return ENXIO; 978 } 979 980 if (sc->pch.dma_was_active) { 981 cmichan_setspeed(NULL, &sc->pch, sc->pch.spd); 982 cmichan_setformat(NULL, &sc->pch, sc->pch.fmt); 983 cmi_ch0_start(sc, &sc->pch); 984 } 985 986 if (sc->rch.dma_was_active) { 987 cmichan_setspeed(NULL, &sc->rch, sc->rch.spd); 988 cmichan_setformat(NULL, &sc->rch, sc->rch.fmt); 989 cmi_ch1_start(sc, &sc->rch); 990 } 991 snd_mtxunlock(sc->lock); 992 return 0; 993 } 994 995 static device_method_t cmi_methods[] = { 996 DEVMETHOD(device_probe, cmi_probe), 997 DEVMETHOD(device_attach, cmi_attach), 998 DEVMETHOD(device_detach, cmi_detach), 999 DEVMETHOD(device_resume, cmi_resume), 1000 DEVMETHOD(device_suspend, cmi_suspend), 1001 { 0, 0 } 1002 }; 1003 1004 static driver_t cmi_driver = { 1005 "pcm", 1006 cmi_methods, 1007 PCM_SOFTC_SIZE 1008 }; 1009 1010 DRIVER_MODULE(snd_cmi, pci, cmi_driver, pcm_devclass, 0, 0); 1011 MODULE_DEPEND(snd_cmi, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 1012 MODULE_VERSION(snd_cmi, 1);
Cache object: ac7e18b27cec08b9174ba04309ad0e4e
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