feeder_chain.c revision 193640
1193640Sariff/*- 2193640Sariff * Copyright (c) 2008-2009 Ariff Abdullah <ariff@FreeBSD.org> 3193640Sariff * All rights reserved. 4193640Sariff * 5193640Sariff * Redistribution and use in source and binary forms, with or without 6193640Sariff * modification, are permitted provided that the following conditions 7193640Sariff * are met: 8193640Sariff * 1. Redistributions of source code must retain the above copyright 9193640Sariff * notice, this list of conditions and the following disclaimer. 10193640Sariff * 2. Redistributions in binary form must reproduce the above copyright 11193640Sariff * notice, this list of conditions and the following disclaimer in the 12193640Sariff * documentation and/or other materials provided with the distribution. 13193640Sariff * 14193640Sariff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15193640Sariff * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16193640Sariff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17193640Sariff * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18193640Sariff * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19193640Sariff * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20193640Sariff * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21193640Sariff * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22193640Sariff * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23193640Sariff * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24193640Sariff * SUCH DAMAGE. 25193640Sariff */ 26193640Sariff 27193640Sariff#ifdef HAVE_KERNEL_OPTION_HEADERS 28193640Sariff#include "opt_snd.h" 29193640Sariff#endif 30193640Sariff 31193640Sariff#include <dev/sound/pcm/sound.h> 32193640Sariff 33193640Sariff#include "feeder_if.h" 34193640Sariff 35193640SariffSND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/feeder_chain.c 193640 2009-06-07 19:12:08Z ariff $"); 36193640Sariff 37193640Sariff/* chain state */ 38193640Sariffstruct feeder_chain_state { 39193640Sariff uint32_t afmt; /* audio format */ 40193640Sariff uint32_t rate; /* sampling rate */ 41193640Sariff struct pcmchan_matrix *matrix; /* matrix map */ 42193640Sariff}; 43193640Sariff 44193640Sariff/* 45193640Sariff * chain descriptor that will be passed around from the beginning until the 46193640Sariff * end of chain process. 47193640Sariff */ 48193640Sariffstruct feeder_chain_desc { 49193640Sariff struct feeder_chain_state origin; /* original state */ 50193640Sariff struct feeder_chain_state current; /* current state */ 51193640Sariff struct feeder_chain_state target; /* target state */ 52193640Sariff struct pcm_feederdesc desc; /* feeder descriptor */ 53193640Sariff uint32_t afmt_ne; /* prefered native endian */ 54193640Sariff int mode; /* chain mode */ 55193640Sariff int use_eq; /* need EQ? */ 56193640Sariff int use_matrix; /* need channel matrixing? */ 57193640Sariff int use_volume; /* need softpcmvol? */ 58193640Sariff int dummy; /* dummy passthrough */ 59193640Sariff int expensive; /* possibly expensive */ 60193640Sariff}; 61193640Sariff 62193640Sariff#define FEEDER_CHAIN_LEAN 0 63193640Sariff#define FEEDER_CHAIN_16 1 64193640Sariff#define FEEDER_CHAIN_32 2 65193640Sariff#define FEEDER_CHAIN_MULTI 3 66193640Sariff#define FEEDER_CHAIN_FULLMULTI 4 67193640Sariff#define FEEDER_CHAIN_LAST 5 68193640Sariff 69193640Sariff#if defined(SND_FEEDER_FULL_MULTIFORMAT) 70193640Sariff#define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_FULLMULTI 71193640Sariff#elif defined(SND_FEEDER_MULTIFORMAT) 72193640Sariff#define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_MULTI 73193640Sariff#else 74193640Sariff#define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_LEAN 75193640Sariff#endif 76193640Sariff 77193640Sariff/* 78193640Sariff * List of prefered formats that might be required during 79193640Sariff * processing. It will be decided through snd_fmtbest(). 80193640Sariff */ 81193640Sariff 82193640Sariff/* 'Lean' mode, signed 16 or 32 bit native endian. */ 83193640Sariffstatic uint32_t feeder_chain_formats_lean[] = { 84193640Sariff AFMT_S16_NE, AFMT_S32_NE, 85193640Sariff 0 86193640Sariff}; 87193640Sariff 88193640Sariff/* Force everything to signed 16 bit native endian. */ 89193640Sariffstatic uint32_t feeder_chain_formats_16[] = { 90193640Sariff AFMT_S16_NE, 91193640Sariff 0 92193640Sariff}; 93193640Sariff 94193640Sariff/* Force everything to signed 32 bit native endian. */ 95193640Sariffstatic uint32_t feeder_chain_formats_32[] = { 96193640Sariff AFMT_S32_NE, 97193640Sariff 0 98193640Sariff}; 99193640Sariff 100193640Sariff/* Multiple choices, all except 8 bit. */ 101193640Sariffstatic uint32_t feeder_chain_formats_multi[] = { 102193640Sariff AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE, 103193640Sariff AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE, 104193640Sariff AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE, 105193640Sariff 0 106193640Sariff}; 107193640Sariff 108193640Sariff/* Everything that is convertible. */ 109193640Sariffstatic uint32_t feeder_chain_formats_fullmulti[] = { 110193640Sariff AFMT_S8, AFMT_U8, 111193640Sariff AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE, 112193640Sariff AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE, 113193640Sariff AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE, 114193640Sariff 0 115193640Sariff}; 116193640Sariff 117193640Sariffstatic uint32_t *feeder_chain_formats[FEEDER_CHAIN_LAST] = { 118193640Sariff [FEEDER_CHAIN_LEAN] = feeder_chain_formats_lean, 119193640Sariff [FEEDER_CHAIN_16] = feeder_chain_formats_16, 120193640Sariff [FEEDER_CHAIN_32] = feeder_chain_formats_32, 121193640Sariff [FEEDER_CHAIN_MULTI] = feeder_chain_formats_multi, 122193640Sariff [FEEDER_CHAIN_FULLMULTI] = feeder_chain_formats_fullmulti 123193640Sariff}; 124193640Sariff 125193640Sariffstatic int feeder_chain_mode = FEEDER_CHAIN_DEFAULT; 126193640Sariff 127193640Sariff#if defined(_KERNEL) && defined(SND_DEBUG) && defined(SND_FEEDER_FULL_MULTIFORMAT) 128193640SariffTUNABLE_INT("hw.snd.feeder_chain_mode", &feeder_chain_mode); 129193640SariffSYSCTL_INT(_hw_snd, OID_AUTO, feeder_chain_mode, CTLFLAG_RW, 130193640Sariff &feeder_chain_mode, 0, 131193640Sariff "feeder chain mode " 132193640Sariff "(0=lean, 1=16bit, 2=32bit, 3=multiformat, 4=fullmultiformat)"); 133193640Sariff#endif 134193640Sariff 135193640Sariff/* 136193640Sariff * feeder_build_format(): Chain any format converter. 137193640Sariff */ 138193640Sariffstatic int 139193640Sarifffeeder_build_format(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 140193640Sariff{ 141193640Sariff struct feeder_class *fc; 142193640Sariff struct pcm_feederdesc *desc; 143193640Sariff int ret; 144193640Sariff 145193640Sariff desc = &(cdesc->desc); 146193640Sariff desc->type = FEEDER_FORMAT; 147193640Sariff desc->in = 0; 148193640Sariff desc->out = 0; 149193640Sariff desc->flags = 0; 150193640Sariff 151193640Sariff fc = feeder_getclass(desc); 152193640Sariff if (fc == NULL) { 153193640Sariff device_printf(c->dev, 154193640Sariff "%s(): can't find feeder_format\n", __func__); 155193640Sariff return (ENOTSUP); 156193640Sariff } 157193640Sariff 158193640Sariff desc->in = cdesc->current.afmt; 159193640Sariff desc->out = cdesc->target.afmt; 160193640Sariff 161193640Sariff ret = chn_addfeeder(c, fc, desc); 162193640Sariff if (ret != 0) { 163193640Sariff device_printf(c->dev, 164193640Sariff "%s(): can't add feeder_format\n", __func__); 165193640Sariff return (ret); 166193640Sariff } 167193640Sariff 168193640Sariff c->feederflags |= 1 << FEEDER_FORMAT; 169193640Sariff 170193640Sariff cdesc->current.afmt = cdesc->target.afmt; 171193640Sariff 172193640Sariff return (0); 173193640Sariff} 174193640Sariff 175193640Sariff/* 176193640Sariff * feeder_build_formatne(): Chain format converter that suite best for native 177193640Sariff * endian format. 178193640Sariff */ 179193640Sariffstatic int 180193640Sarifffeeder_build_formatne(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 181193640Sariff{ 182193640Sariff struct feeder_chain_state otarget; 183193640Sariff int ret; 184193640Sariff 185193640Sariff if (cdesc->afmt_ne == 0 || 186193640Sariff AFMT_ENCODING(cdesc->current.afmt) == cdesc->afmt_ne) 187193640Sariff return (0); 188193640Sariff 189193640Sariff otarget = cdesc->target; 190193640Sariff cdesc->target = cdesc->current; 191193640Sariff cdesc->target.afmt = SND_FORMAT(cdesc->afmt_ne, 192193640Sariff cdesc->current.matrix->channels, cdesc->current.matrix->ext); 193193640Sariff 194193640Sariff ret = feeder_build_format(c, cdesc); 195193640Sariff if (ret != 0) 196193640Sariff return (ret); 197193640Sariff 198193640Sariff cdesc->target = otarget; 199193640Sariff 200193640Sariff return (0); 201193640Sariff} 202193640Sariff 203193640Sariff/* 204193640Sariff * feeder_build_rate(): Chain sample rate converter. 205193640Sariff */ 206193640Sariffstatic int 207193640Sarifffeeder_build_rate(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 208193640Sariff{ 209193640Sariff struct feeder_class *fc; 210193640Sariff struct pcm_feeder *f; 211193640Sariff struct pcm_feederdesc *desc; 212193640Sariff int ret; 213193640Sariff 214193640Sariff ret = feeder_build_formatne(c, cdesc); 215193640Sariff if (ret != 0) 216193640Sariff return (ret); 217193640Sariff 218193640Sariff desc = &(cdesc->desc); 219193640Sariff desc->type = FEEDER_RATE; 220193640Sariff desc->in = 0; 221193640Sariff desc->out = 0; 222193640Sariff desc->flags = 0; 223193640Sariff 224193640Sariff fc = feeder_getclass(desc); 225193640Sariff if (fc == NULL) { 226193640Sariff device_printf(c->dev, 227193640Sariff "%s(): can't find feeder_rate\n", __func__); 228193640Sariff return (ENOTSUP); 229193640Sariff } 230193640Sariff 231193640Sariff desc->in = cdesc->current.afmt; 232193640Sariff desc->out = desc->in; 233193640Sariff 234193640Sariff ret = chn_addfeeder(c, fc, desc); 235193640Sariff if (ret != 0) { 236193640Sariff device_printf(c->dev, 237193640Sariff "%s(): can't add feeder_rate\n", __func__); 238193640Sariff return (ret); 239193640Sariff } 240193640Sariff 241193640Sariff f = c->feeder; 242193640Sariff 243193640Sariff /* 244193640Sariff * If in 'dummy' mode (possibly due to passthrough mode), set the 245193640Sariff * conversion quality to the lowest possible (should be fastest) since 246193640Sariff * listener won't be hearing anything. Theoretically we can just 247193640Sariff * disable it, but that will cause weird runtime behaviour: 248193640Sariff * application appear to play something that is either too fast or too 249193640Sariff * slow. 250193640Sariff */ 251193640Sariff if (cdesc->dummy != 0) { 252193640Sariff ret = FEEDER_SET(f, FEEDRATE_QUALITY, 0); 253193640Sariff if (ret != 0) { 254193640Sariff device_printf(c->dev, 255193640Sariff "%s(): can't set resampling quality\n", __func__); 256193640Sariff return (ret); 257193640Sariff } 258193640Sariff } 259193640Sariff 260193640Sariff ret = FEEDER_SET(f, FEEDRATE_SRC, cdesc->current.rate); 261193640Sariff if (ret != 0) { 262193640Sariff device_printf(c->dev, 263193640Sariff "%s(): can't set source rate\n", __func__); 264193640Sariff return (ret); 265193640Sariff } 266193640Sariff 267193640Sariff ret = FEEDER_SET(f, FEEDRATE_DST, cdesc->target.rate); 268193640Sariff if (ret != 0) { 269193640Sariff device_printf(c->dev, 270193640Sariff "%s(): can't set destination rate\n", __func__); 271193640Sariff return (ret); 272193640Sariff } 273193640Sariff 274193640Sariff c->feederflags |= 1 << FEEDER_RATE; 275193640Sariff 276193640Sariff cdesc->current.rate = cdesc->target.rate; 277193640Sariff 278193640Sariff return (0); 279193640Sariff} 280193640Sariff 281193640Sariff/* 282193640Sariff * feeder_build_matrix(): Chain channel matrixing converter. 283193640Sariff */ 284193640Sariffstatic int 285193640Sarifffeeder_build_matrix(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 286193640Sariff{ 287193640Sariff struct feeder_class *fc; 288193640Sariff struct pcm_feeder *f; 289193640Sariff struct pcm_feederdesc *desc; 290193640Sariff int ret; 291193640Sariff 292193640Sariff ret = feeder_build_formatne(c, cdesc); 293193640Sariff if (ret != 0) 294193640Sariff return (ret); 295193640Sariff 296193640Sariff desc = &(cdesc->desc); 297193640Sariff desc->type = FEEDER_MATRIX; 298193640Sariff desc->in = 0; 299193640Sariff desc->out = 0; 300193640Sariff desc->flags = 0; 301193640Sariff 302193640Sariff fc = feeder_getclass(desc); 303193640Sariff if (fc == NULL) { 304193640Sariff device_printf(c->dev, 305193640Sariff "%s(): can't find feeder_matrix\n", __func__); 306193640Sariff return (ENOTSUP); 307193640Sariff } 308193640Sariff 309193640Sariff desc->in = cdesc->current.afmt; 310193640Sariff desc->out = SND_FORMAT(cdesc->current.afmt, 311193640Sariff cdesc->target.matrix->channels, cdesc->target.matrix->ext); 312193640Sariff 313193640Sariff ret = chn_addfeeder(c, fc, desc); 314193640Sariff if (ret != 0) { 315193640Sariff device_printf(c->dev, 316193640Sariff "%s(): can't add feeder_matrix\n", __func__); 317193640Sariff return (ret); 318193640Sariff } 319193640Sariff 320193640Sariff f = c->feeder; 321193640Sariff ret = feeder_matrix_setup(f, cdesc->current.matrix, 322193640Sariff cdesc->target.matrix); 323193640Sariff if (ret != 0) { 324193640Sariff device_printf(c->dev, 325193640Sariff "%s(): feeder_matrix_setup() failed\n", __func__); 326193640Sariff return (ret); 327193640Sariff } 328193640Sariff 329193640Sariff c->feederflags |= 1 << FEEDER_MATRIX; 330193640Sariff 331193640Sariff cdesc->current.afmt = desc->out; 332193640Sariff cdesc->current.matrix = cdesc->target.matrix; 333193640Sariff cdesc->use_matrix = 0; 334193640Sariff 335193640Sariff return (0); 336193640Sariff} 337193640Sariff 338193640Sariff/* 339193640Sariff * feeder_build_volume(): Chain soft volume. 340193640Sariff */ 341193640Sariffstatic int 342193640Sarifffeeder_build_volume(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 343193640Sariff{ 344193640Sariff struct feeder_class *fc; 345193640Sariff struct pcm_feeder *f; 346193640Sariff struct pcm_feederdesc *desc; 347193640Sariff int ret; 348193640Sariff 349193640Sariff ret = feeder_build_formatne(c, cdesc); 350193640Sariff if (ret != 0) 351193640Sariff return (ret); 352193640Sariff 353193640Sariff desc = &(cdesc->desc); 354193640Sariff desc->type = FEEDER_VOLUME; 355193640Sariff desc->in = 0; 356193640Sariff desc->out = 0; 357193640Sariff desc->flags = 0; 358193640Sariff 359193640Sariff fc = feeder_getclass(desc); 360193640Sariff if (fc == NULL) { 361193640Sariff device_printf(c->dev, 362193640Sariff "%s(): can't find feeder_volume\n", __func__); 363193640Sariff return (ENOTSUP); 364193640Sariff } 365193640Sariff 366193640Sariff desc->in = cdesc->current.afmt; 367193640Sariff desc->out = desc->in; 368193640Sariff 369193640Sariff ret = chn_addfeeder(c, fc, desc); 370193640Sariff if (ret != 0) { 371193640Sariff device_printf(c->dev, 372193640Sariff "%s(): can't add feeder_volume\n", __func__); 373193640Sariff return (ret); 374193640Sariff } 375193640Sariff 376193640Sariff f = c->feeder; 377193640Sariff 378193640Sariff /* 379193640Sariff * If in 'dummy' mode (possibly due to passthrough mode), set BYPASS 380193640Sariff * mode since listener won't be hearing anything. Theoretically we can 381193640Sariff * just disable it, but that will confuse volume per channel mixer. 382193640Sariff */ 383193640Sariff if (cdesc->dummy != 0) { 384193640Sariff ret = FEEDER_SET(f, FEEDVOLUME_STATE, FEEDVOLUME_BYPASS); 385193640Sariff if (ret != 0) { 386193640Sariff device_printf(c->dev, 387193640Sariff "%s(): can't set volume bypass\n", __func__); 388193640Sariff return (ret); 389193640Sariff } 390193640Sariff } 391193640Sariff 392193640Sariff ret = feeder_volume_apply_matrix(f, cdesc->current.matrix); 393193640Sariff if (ret != 0) { 394193640Sariff device_printf(c->dev, 395193640Sariff "%s(): feeder_volume_apply_matrix() failed\n", __func__); 396193640Sariff return (ret); 397193640Sariff } 398193640Sariff 399193640Sariff c->feederflags |= 1 << FEEDER_VOLUME; 400193640Sariff 401193640Sariff cdesc->use_volume = 0; 402193640Sariff 403193640Sariff return (0); 404193640Sariff} 405193640Sariff 406193640Sariff/* 407193640Sariff * feeder_build_eq(): Chain parametric software equalizer. 408193640Sariff */ 409193640Sariffstatic int 410193640Sarifffeeder_build_eq(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 411193640Sariff{ 412193640Sariff struct feeder_class *fc; 413193640Sariff struct pcm_feeder *f; 414193640Sariff struct pcm_feederdesc *desc; 415193640Sariff int ret; 416193640Sariff 417193640Sariff ret = feeder_build_formatne(c, cdesc); 418193640Sariff if (ret != 0) 419193640Sariff return (ret); 420193640Sariff 421193640Sariff desc = &(cdesc->desc); 422193640Sariff desc->type = FEEDER_EQ; 423193640Sariff desc->in = 0; 424193640Sariff desc->out = 0; 425193640Sariff desc->flags = 0; 426193640Sariff 427193640Sariff fc = feeder_getclass(desc); 428193640Sariff if (fc == NULL) { 429193640Sariff device_printf(c->dev, 430193640Sariff "%s(): can't find feeder_eq\n", __func__); 431193640Sariff return (ENOTSUP); 432193640Sariff } 433193640Sariff 434193640Sariff desc->in = cdesc->current.afmt; 435193640Sariff desc->out = desc->in; 436193640Sariff 437193640Sariff ret = chn_addfeeder(c, fc, desc); 438193640Sariff if (ret != 0) { 439193640Sariff device_printf(c->dev, 440193640Sariff "%s(): can't add feeder_eq\n", __func__); 441193640Sariff return (ret); 442193640Sariff } 443193640Sariff 444193640Sariff f = c->feeder; 445193640Sariff 446193640Sariff ret = FEEDER_SET(f, FEEDEQ_RATE, cdesc->current.rate); 447193640Sariff if (ret != 0) { 448193640Sariff device_printf(c->dev, 449193640Sariff "%s(): can't set rate on feeder_eq\n", __func__); 450193640Sariff return (ret); 451193640Sariff } 452193640Sariff 453193640Sariff c->feederflags |= 1 << FEEDER_EQ; 454193640Sariff 455193640Sariff cdesc->use_eq = 0; 456193640Sariff 457193640Sariff return (0); 458193640Sariff} 459193640Sariff 460193640Sariff/* 461193640Sariff * feeder_build_root(): Chain root feeder, the top, father of all. 462193640Sariff */ 463193640Sariffstatic int 464193640Sarifffeeder_build_root(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 465193640Sariff{ 466193640Sariff struct feeder_class *fc; 467193640Sariff int ret; 468193640Sariff 469193640Sariff fc = feeder_getclass(NULL); 470193640Sariff if (fc == NULL) { 471193640Sariff device_printf(c->dev, 472193640Sariff "%s(): can't find feeder_root\n", __func__); 473193640Sariff return (ENOTSUP); 474193640Sariff } 475193640Sariff 476193640Sariff ret = chn_addfeeder(c, fc, NULL); 477193640Sariff if (ret != 0) { 478193640Sariff device_printf(c->dev, 479193640Sariff "%s(): can't add feeder_root\n", __func__); 480193640Sariff return (ret); 481193640Sariff } 482193640Sariff 483193640Sariff c->feederflags |= 1 << FEEDER_ROOT; 484193640Sariff 485193640Sariff c->feeder->desc->in = cdesc->current.afmt; 486193640Sariff c->feeder->desc->out = cdesc->current.afmt; 487193640Sariff 488193640Sariff return (0); 489193640Sariff} 490193640Sariff 491193640Sariff/* 492193640Sariff * feeder_build_mixer(): Chain software mixer for virtual channels. 493193640Sariff */ 494193640Sariffstatic int 495193640Sarifffeeder_build_mixer(struct pcm_channel *c, struct feeder_chain_desc *cdesc) 496193640Sariff{ 497193640Sariff struct feeder_class *fc; 498193640Sariff struct pcm_feederdesc *desc; 499193640Sariff int ret; 500193640Sariff 501193640Sariff desc = &(cdesc->desc); 502193640Sariff desc->type = FEEDER_MIXER; 503193640Sariff desc->in = 0; 504193640Sariff desc->out = 0; 505193640Sariff desc->flags = 0; 506193640Sariff 507193640Sariff fc = feeder_getclass(desc); 508193640Sariff if (fc == NULL) { 509193640Sariff device_printf(c->dev, 510193640Sariff "%s(): can't find feeder_mixer\n", __func__); 511193640Sariff return (ENOTSUP); 512193640Sariff } 513193640Sariff 514193640Sariff desc->in = cdesc->current.afmt; 515193640Sariff desc->out = desc->in; 516193640Sariff 517193640Sariff ret = chn_addfeeder(c, fc, desc); 518193640Sariff if (ret != 0) { 519193640Sariff device_printf(c->dev, 520193640Sariff "%s(): can't add feeder_mixer\n", __func__); 521193640Sariff return (ret); 522193640Sariff } 523193640Sariff 524193640Sariff c->feederflags |= 1 << FEEDER_MIXER; 525193640Sariff 526193640Sariff return (0); 527193640Sariff} 528193640Sariff 529193640Sariff/* Macrosses to ease our job doing stuffs later. */ 530193640Sariff#define FEEDER_BW(c, t) ((c)->t.matrix->channels * (c)->t.rate) 531193640Sariff 532193640Sariff#define FEEDRATE_UP(c) ((c)->target.rate > (c)->current.rate) 533193640Sariff#define FEEDRATE_DOWN(c) ((c)->target.rate < (c)->current.rate) 534193640Sariff#define FEEDRATE_REQUIRED(c) (FEEDRATE_UP(c) || FEEDRATE_DOWN(c)) 535193640Sariff 536193640Sariff#define FEEDMATRIX_UP(c) ((c)->target.matrix->channels > \ 537193640Sariff (c)->current.matrix->channels) 538193640Sariff#define FEEDMATRIX_DOWN(c) ((c)->target.matrix->channels < \ 539193640Sariff (c)->current.matrix->channels) 540193640Sariff#define FEEDMATRIX_REQUIRED(c) (FEEDMATRIX_UP(c) || \ 541193640Sariff FEEDMATRIX_DOWN(c) || (c)->use_matrix != 0) 542193640Sariff 543193640Sariff#define FEEDFORMAT_REQUIRED(c) (AFMT_ENCODING((c)->current.afmt) != \ 544193640Sariff AFMT_ENCODING((c)->target.afmt)) 545193640Sariff 546193640Sariff#define FEEDVOLUME_REQUIRED(c) ((c)->use_volume != 0) 547193640Sariff 548193640Sariff#define FEEDEQ_VALIDRATE(c, t) (feeder_eq_validrate((c)->t.rate) != 0) 549193640Sariff#define FEEDEQ_ECONOMY(c) (FEEDER_BW(c, current) < FEEDER_BW(c, target)) 550193640Sariff#define FEEDEQ_REQUIRED(c) ((c)->use_eq != 0 && \ 551193640Sariff FEEDEQ_VALIDRATE(c, current)) 552193640Sariff 553193640Sariff#define FEEDFORMAT_NE_REQUIRED(c) \ 554193640Sariff ((c)->afmt_ne != AFMT_S32_NE && \ 555193640Sariff (((c)->mode == FEEDER_CHAIN_16 && \ 556193640Sariff AFMT_ENCODING((c)->current.afmt) != AFMT_S16_NE) || \ 557193640Sariff ((c)->mode == FEEDER_CHAIN_32 && \ 558193640Sariff AFMT_ENCODING((c)->current.afmt) != AFMT_S32_NE) || \ 559193640Sariff (c)->mode == FEEDER_CHAIN_FULLMULTI || \ 560193640Sariff ((c)->mode == FEEDER_CHAIN_MULTI && \ 561193640Sariff ((c)->current.afmt & AFMT_8BIT)) || \ 562193640Sariff ((c)->mode == FEEDER_CHAIN_LEAN && \ 563193640Sariff !((c)->current.afmt & (AFMT_S16_NE | AFMT_S32_NE))))) 564193640Sariff 565193640Sariffint 566193640Sarifffeeder_chain(struct pcm_channel *c) 567193640Sariff{ 568193640Sariff struct snddev_info *d; 569193640Sariff struct pcmchan_caps *caps; 570193640Sariff struct feeder_chain_desc cdesc; 571193640Sariff struct pcmchan_matrix *hwmatrix, *softmatrix; 572193640Sariff uint32_t hwfmt, softfmt; 573193640Sariff int ret; 574193640Sariff 575193640Sariff CHN_LOCKASSERT(c); 576193640Sariff 577193640Sariff /* Remove everything first. */ 578193640Sariff while (chn_removefeeder(c) == 0) 579193640Sariff ; 580193640Sariff 581193640Sariff KASSERT(c->feeder == NULL, ("feeder chain not empty")); 582193640Sariff 583193640Sariff /* clear and populate chain descriptor. */ 584193640Sariff bzero(&cdesc, sizeof(cdesc)); 585193640Sariff 586193640Sariff switch (feeder_chain_mode) { 587193640Sariff case FEEDER_CHAIN_LEAN: 588193640Sariff case FEEDER_CHAIN_16: 589193640Sariff case FEEDER_CHAIN_32: 590193640Sariff#if defined(SND_FEEDER_MULTIFORMAT) || defined(SND_FEEDER_FULL_MULTIFORMAT) 591193640Sariff case FEEDER_CHAIN_MULTI: 592193640Sariff#endif 593193640Sariff#if defined(SND_FEEDER_FULL_MULTIFORMAT) 594193640Sariff case FEEDER_CHAIN_FULLMULTI: 595193640Sariff#endif 596193640Sariff break; 597193640Sariff default: 598193640Sariff feeder_chain_mode = FEEDER_CHAIN_DEFAULT; 599193640Sariff break; 600193640Sariff } 601193640Sariff 602193640Sariff cdesc.mode = feeder_chain_mode; 603193640Sariff cdesc.expensive = 1; /* XXX faster.. */ 604193640Sariff 605193640Sariff#define VCHAN_PASSTHROUGH(c) (((c)->flags & (CHN_F_VIRTUAL | \ 606193640Sariff CHN_F_PASSTHROUGH)) == \ 607193640Sariff (CHN_F_VIRTUAL | CHN_F_PASSTHROUGH)) 608193640Sariff 609193640Sariff /* Get the best possible hardware format. */ 610193640Sariff if (VCHAN_PASSTHROUGH(c)) 611193640Sariff hwfmt = c->parentchannel->format; 612193640Sariff else { 613193640Sariff caps = chn_getcaps(c); 614193640Sariff if (caps == NULL || caps->fmtlist == NULL) { 615193640Sariff device_printf(c->dev, 616193640Sariff "%s(): failed to get channel caps\n", __func__); 617193640Sariff return (ENODEV); 618193640Sariff } 619193640Sariff 620193640Sariff if ((c->format & AFMT_PASSTHROUGH) && 621193640Sariff !snd_fmtvalid(c->format, caps->fmtlist)) 622193640Sariff return (ENODEV); 623193640Sariff 624193640Sariff hwfmt = snd_fmtbest(c->format, caps->fmtlist); 625193640Sariff if (hwfmt == 0 || !snd_fmtvalid(hwfmt, caps->fmtlist)) { 626193640Sariff device_printf(c->dev, 627193640Sariff "%s(): invalid hardware format 0x%08x\n", 628193640Sariff __func__, hwfmt); 629193640Sariff { 630193640Sariff int i; 631193640Sariff for (i = 0; caps->fmtlist[i] != 0; i++) 632193640Sariff printf("0x%08x\n", caps->fmtlist[i]); 633193640Sariff printf("Req: 0x%08x\n", c->format); 634193640Sariff } 635193640Sariff return (ENODEV); 636193640Sariff } 637193640Sariff } 638193640Sariff 639193640Sariff /* 640193640Sariff * The 'hardware' possibly have different intepretation of channel 641193640Sariff * matrixing, so get it first ..... 642193640Sariff */ 643193640Sariff hwmatrix = CHANNEL_GETMATRIX(c->methods, c->devinfo, hwfmt); 644193640Sariff if (hwmatrix == NULL) { 645193640Sariff device_printf(c->dev, 646193640Sariff "%s(): failed to acquire hw matrix [0x%08x]\n", 647193640Sariff __func__, hwfmt); 648193640Sariff return (ENODEV); 649193640Sariff } 650193640Sariff /* ..... and rebuild hwfmt. */ 651193640Sariff hwfmt = SND_FORMAT(hwfmt, hwmatrix->channels, hwmatrix->ext); 652193640Sariff 653193640Sariff /* Reset and rebuild default channel format/matrix map. */ 654193640Sariff softfmt = c->format; 655193640Sariff softmatrix = &c->matrix; 656193640Sariff if (softmatrix->channels != AFMT_CHANNEL(softfmt) || 657193640Sariff softmatrix->ext != AFMT_EXTCHANNEL(softfmt)) { 658193640Sariff softmatrix = feeder_matrix_format_map(softfmt); 659193640Sariff if (softmatrix == NULL) { 660193640Sariff device_printf(c->dev, 661193640Sariff "%s(): failed to acquire soft matrix [0x%08x]\n", 662193640Sariff __func__, softfmt); 663193640Sariff return (ENODEV); 664193640Sariff } 665193640Sariff c->matrix = *softmatrix; 666193640Sariff c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; 667193640Sariff } 668193640Sariff softfmt = SND_FORMAT(softfmt, softmatrix->channels, softmatrix->ext); 669193640Sariff if (softfmt != c->format) 670193640Sariff device_printf(c->dev, 671193640Sariff "%s(): WARNING: %s Soft format 0x%08x -> 0x%08x\n", 672193640Sariff __func__, CHN_DIRSTR(c), c->format, softfmt); 673193640Sariff 674193640Sariff /* 675193640Sariff * PLAY and REC are opposite. 676193640Sariff */ 677193640Sariff if (c->direction == PCMDIR_PLAY) { 678193640Sariff cdesc.origin.afmt = softfmt; 679193640Sariff cdesc.origin.matrix = softmatrix; 680193640Sariff cdesc.origin.rate = c->speed; 681193640Sariff cdesc.target.afmt = hwfmt; 682193640Sariff cdesc.target.matrix = hwmatrix; 683193640Sariff cdesc.target.rate = sndbuf_getspd(c->bufhard); 684193640Sariff } else { 685193640Sariff cdesc.origin.afmt = hwfmt; 686193640Sariff cdesc.origin.matrix = hwmatrix; 687193640Sariff cdesc.origin.rate = sndbuf_getspd(c->bufhard); 688193640Sariff cdesc.target.afmt = softfmt; 689193640Sariff cdesc.target.matrix = softmatrix; 690193640Sariff cdesc.target.rate = c->speed; 691193640Sariff } 692193640Sariff 693193640Sariff d = c->parentsnddev; 694193640Sariff 695193640Sariff /* 696193640Sariff * If channel is in bitperfect or passthrough mode, make it appear 697193640Sariff * that 'origin' and 'target' identical, skipping mostly chain 698193640Sariff * procedures. 699193640Sariff */ 700193640Sariff if (CHN_BITPERFECT(c) || (c->format & AFMT_PASSTHROUGH)) { 701193640Sariff if (c->direction == PCMDIR_PLAY) 702193640Sariff cdesc.origin = cdesc.target; 703193640Sariff else 704193640Sariff cdesc.target = cdesc.origin; 705193640Sariff c->format = cdesc.target.afmt; 706193640Sariff c->speed = cdesc.target.rate; 707193640Sariff } else { 708193640Sariff /* hwfmt is not convertible, so 'dummy' it. */ 709193640Sariff if (hwfmt & AFMT_PASSTHROUGH) 710193640Sariff cdesc.dummy = 1; 711193640Sariff 712193640Sariff if ((softfmt & AFMT_CONVERTIBLE) && 713193640Sariff (((d->flags & SD_F_VPC) && !(c->flags & CHN_F_HAS_VCHAN)) || 714193640Sariff (!(d->flags & SD_F_VPC) && (d->flags & SD_F_SOFTPCMVOL) && 715193640Sariff !(c->flags & CHN_F_VIRTUAL)))) 716193640Sariff cdesc.use_volume = 1; 717193640Sariff 718193640Sariff if (feeder_matrix_compare(cdesc.origin.matrix, 719193640Sariff cdesc.target.matrix) != 0) 720193640Sariff cdesc.use_matrix = 1; 721193640Sariff 722193640Sariff /* Soft EQ only applicable for PLAY. */ 723193640Sariff if (cdesc.dummy == 0 && 724193640Sariff c->direction == PCMDIR_PLAY && (d->flags & SD_F_EQ) && 725193640Sariff (((d->flags & SD_F_EQ_PC) && 726193640Sariff !(c->flags & CHN_F_HAS_VCHAN)) || 727193640Sariff (!(d->flags & SD_F_EQ_PC) && !(c->flags & CHN_F_VIRTUAL)))) 728193640Sariff cdesc.use_eq = 1; 729193640Sariff 730193640Sariff if (FEEDFORMAT_NE_REQUIRED(&cdesc)) { 731193640Sariff cdesc.afmt_ne = 732193640Sariff (cdesc.dummy != 0) ? 733193640Sariff snd_fmtbest(AFMT_ENCODING(softfmt), 734193640Sariff feeder_chain_formats[cdesc.mode]) : 735193640Sariff snd_fmtbest(AFMT_ENCODING(cdesc.target.afmt), 736193640Sariff feeder_chain_formats[cdesc.mode]); 737193640Sariff if (cdesc.afmt_ne == 0) { 738193640Sariff device_printf(c->dev, 739193640Sariff "%s(): snd_fmtbest failed!\n", __func__); 740193640Sariff cdesc.afmt_ne = 741193640Sariff (((cdesc.dummy != 0) ? softfmt : 742193640Sariff cdesc.target.afmt) & 743193640Sariff (AFMT_24BIT | AFMT_32BIT)) ? 744193640Sariff AFMT_S32_NE : AFMT_S16_NE; 745193640Sariff } 746193640Sariff } 747193640Sariff } 748193640Sariff 749193640Sariff cdesc.current = cdesc.origin; 750193640Sariff 751193640Sariff /* Build everything. */ 752193640Sariff 753193640Sariff c->feederflags = 0; 754193640Sariff 755193640Sariff#define FEEDER_BUILD(t) do { \ 756193640Sariff ret = feeder_build_##t(c, &cdesc); \ 757193640Sariff if (ret != 0) \ 758193640Sariff return (ret); \ 759193640Sariff } while (0) 760193640Sariff 761193640Sariff if (!(c->flags & CHN_F_HAS_VCHAN) || c->direction == PCMDIR_REC) 762193640Sariff FEEDER_BUILD(root); 763193640Sariff else if (c->direction == PCMDIR_PLAY && (c->flags & CHN_F_HAS_VCHAN)) 764193640Sariff FEEDER_BUILD(mixer); 765193640Sariff else 766193640Sariff return (ENOTSUP); 767193640Sariff 768193640Sariff /* 769193640Sariff * The basic idea is: The smaller the bandwidth, the cheaper the 770193640Sariff * conversion process, with following constraints:- 771193640Sariff * 772193640Sariff * 1) Almost all feeders work best in 16/32 native endian. 773193640Sariff * 2) Try to avoid 8bit feeders due to poor dynamic range. 774193640Sariff * 3) Avoid volume, format, matrix and rate in BITPERFECT or 775193640Sariff * PASSTHROUGH mode. 776193640Sariff * 4) Try putting volume before EQ or rate. Should help to 777193640Sariff * avoid/reduce possible clipping. 778193640Sariff * 5) EQ require specific, valid rate, unless it allow sloppy 779193640Sariff * conversion. 780193640Sariff */ 781193640Sariff if (FEEDMATRIX_UP(&cdesc)) { 782193640Sariff if (FEEDEQ_REQUIRED(&cdesc) && 783193640Sariff (!FEEDEQ_VALIDRATE(&cdesc, target) || 784193640Sariff (cdesc.expensive == 0 && FEEDEQ_ECONOMY(&cdesc)))) 785193640Sariff FEEDER_BUILD(eq); 786193640Sariff if (FEEDRATE_REQUIRED(&cdesc)) 787193640Sariff FEEDER_BUILD(rate); 788193640Sariff FEEDER_BUILD(matrix); 789193640Sariff if (FEEDVOLUME_REQUIRED(&cdesc)) 790193640Sariff FEEDER_BUILD(volume); 791193640Sariff if (FEEDEQ_REQUIRED(&cdesc)) 792193640Sariff FEEDER_BUILD(eq); 793193640Sariff } else if (FEEDMATRIX_DOWN(&cdesc)) { 794193640Sariff FEEDER_BUILD(matrix); 795193640Sariff if (FEEDVOLUME_REQUIRED(&cdesc)) 796193640Sariff FEEDER_BUILD(volume); 797193640Sariff if (FEEDEQ_REQUIRED(&cdesc) && 798193640Sariff (!FEEDEQ_VALIDRATE(&cdesc, target) || 799193640Sariff FEEDEQ_ECONOMY(&cdesc))) 800193640Sariff FEEDER_BUILD(eq); 801193640Sariff if (FEEDRATE_REQUIRED(&cdesc)) 802193640Sariff FEEDER_BUILD(rate); 803193640Sariff if (FEEDEQ_REQUIRED(&cdesc)) 804193640Sariff FEEDER_BUILD(eq); 805193640Sariff } else { 806193640Sariff if (FEEDRATE_DOWN(&cdesc)) { 807193640Sariff if (FEEDEQ_REQUIRED(&cdesc) && 808193640Sariff !FEEDEQ_VALIDRATE(&cdesc, target)) { 809193640Sariff if (FEEDVOLUME_REQUIRED(&cdesc)) 810193640Sariff FEEDER_BUILD(volume); 811193640Sariff FEEDER_BUILD(eq); 812193640Sariff } 813193640Sariff FEEDER_BUILD(rate); 814193640Sariff } 815193640Sariff if (FEEDMATRIX_REQUIRED(&cdesc)) 816193640Sariff FEEDER_BUILD(matrix); 817193640Sariff if (FEEDVOLUME_REQUIRED(&cdesc)) 818193640Sariff FEEDER_BUILD(volume); 819193640Sariff if (FEEDRATE_UP(&cdesc)) { 820193640Sariff if (FEEDEQ_REQUIRED(&cdesc) && 821193640Sariff !FEEDEQ_VALIDRATE(&cdesc, target)) 822193640Sariff FEEDER_BUILD(eq); 823193640Sariff FEEDER_BUILD(rate); 824193640Sariff } 825193640Sariff if (FEEDEQ_REQUIRED(&cdesc)) 826193640Sariff FEEDER_BUILD(eq); 827193640Sariff } 828193640Sariff 829193640Sariff if (FEEDFORMAT_REQUIRED(&cdesc)) 830193640Sariff FEEDER_BUILD(format); 831193640Sariff 832193640Sariff if (c->direction == PCMDIR_REC && (c->flags & CHN_F_HAS_VCHAN)) 833193640Sariff FEEDER_BUILD(mixer); 834193640Sariff 835193640Sariff sndbuf_setfmt(c->bufsoft, c->format); 836193640Sariff sndbuf_setspd(c->bufsoft, c->speed); 837193640Sariff 838193640Sariff sndbuf_setfmt(c->bufhard, hwfmt); 839193640Sariff 840193640Sariff chn_syncstate(c); 841193640Sariff 842193640Sariff return (0); 843193640Sariff} 844