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emupcm.c
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linux-6.19.14/sound/pci/emu10k1/emupcm.c
1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 4 * Lee Revell <rlrevell@joe-job.com> 5 * James Courtier-Dutton <James@superbug.co.uk> 6 * Oswald Buddenhagen <oswald.buddenhagen@gmx.de> 7 * Creative Labs, Inc. 8 * 9 * Routines for control of EMU10K1 chips / PCM routines 10 */ 11 12#include <linux/pci.h> 13#include <linux/delay.h> 14#include <linux/slab.h> 15#include <linux/time.h> 16#include <linux/init.h> 17#include <sound/core.h> 18#include <sound/emu10k1.h> 19 20static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu, 21 struct snd_emu10k1_voice *voice) 22{ 23 struct snd_emu10k1_pcm *epcm; 24 25 epcm = voice->epcm; 26 if (!epcm) 27 return; 28 if (epcm->substream == NULL) 29 return; 30#if 0 31 dev_dbg(emu->card->dev, 32 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n", 33 epcm->substream->runtime->hw->pointer(emu, epcm->substream), 34 snd_pcm_lib_period_bytes(epcm->substream), 35 snd_pcm_lib_buffer_bytes(epcm->substream)); 36#endif 37 snd_pcm_period_elapsed(epcm->substream); 38} 39 40static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu, 41 unsigned int status) 42{ 43#if 0 44 if (status & IPR_ADCBUFHALFFULL) { 45 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 46 return; 47 } 48#endif 49 snd_pcm_period_elapsed(emu->pcm_capture_substream); 50} 51 52static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu, 53 unsigned int status) 54{ 55#if 0 56 if (status & IPR_MICBUFHALFFULL) { 57 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 58 return; 59 } 60#endif 61 snd_pcm_period_elapsed(emu->pcm_capture_mic_substream); 62} 63 64static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu, 65 unsigned int status) 66{ 67#if 0 68 if (status & IPR_EFXBUFHALFFULL) { 69 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 70 return; 71 } 72#endif 73 snd_pcm_period_elapsed(emu->pcm_capture_efx_substream); 74} 75 76static void snd_emu10k1_pcm_free_voices(struct snd_emu10k1_pcm *epcm) 77{ 78 for (unsigned i = 0; i < ARRAY_SIZE(epcm->voices); i++) { 79 if (epcm->voices[i]) { 80 snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]); 81 epcm->voices[i] = NULL; 82 } 83 } 84} 85 86static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm *epcm, 87 int type, int count, int channels) 88{ 89 int err; 90 91 snd_emu10k1_pcm_free_voices(epcm); 92 93 err = snd_emu10k1_voice_alloc(epcm->emu, 94 type, count, channels, 95 epcm, &epcm->voices[0]); 96 if (err < 0) 97 return err; 98 99 if (epcm->extra == NULL) { 100 // The hardware supports only (half-)loop interrupts, so to support an 101 // arbitrary number of periods per buffer, we use an extra voice with a 102 // period-sized loop as the interrupt source. Additionally, the interrupt 103 // timing of the hardware is "suboptimal" and needs some compensation. 104 err = snd_emu10k1_voice_alloc(epcm->emu, 105 type + 1, 1, 1, 106 epcm, &epcm->extra); 107 if (err < 0) { 108 /* 109 dev_dbg(emu->card->dev, "pcm_channel_alloc: " 110 "failed extra: voices=%d, frame=%d\n", 111 voices, frame); 112 */ 113 snd_emu10k1_pcm_free_voices(epcm); 114 return err; 115 } 116 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt; 117 } 118 119 return 0; 120} 121 122// Primes 2-7 and 2^n multiples thereof, up to 16. 123static const unsigned int efx_capture_channels[] = { 124 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16 125}; 126 127static const struct snd_pcm_hw_constraint_list hw_constraints_efx_capture_channels = { 128 .count = ARRAY_SIZE(efx_capture_channels), 129 .list = efx_capture_channels, 130 .mask = 0 131}; 132 133static const unsigned int capture_buffer_sizes[31] = { 134 384, 448, 512, 640, 135 384*2, 448*2, 512*2, 640*2, 136 384*4, 448*4, 512*4, 640*4, 137 384*8, 448*8, 512*8, 640*8, 138 384*16, 448*16, 512*16, 640*16, 139 384*32, 448*32, 512*32, 640*32, 140 384*64, 448*64, 512*64, 640*64, 141 384*128,448*128,512*128 142}; 143 144static const struct snd_pcm_hw_constraint_list hw_constraints_capture_buffer_sizes = { 145 .count = 31, 146 .list = capture_buffer_sizes, 147 .mask = 0 148}; 149 150static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate) 151{ 152 switch (rate) { 153 case 8000: return ADCCR_SAMPLERATE_8; 154 case 11025: return ADCCR_SAMPLERATE_11; 155 case 16000: return ADCCR_SAMPLERATE_16; 156 case 22050: return ADCCR_SAMPLERATE_22; 157 case 24000: return ADCCR_SAMPLERATE_24; 158 case 32000: return ADCCR_SAMPLERATE_32; 159 case 44100: return ADCCR_SAMPLERATE_44; 160 case 48000: return ADCCR_SAMPLERATE_48; 161 default: 162 snd_BUG(); 163 return ADCCR_SAMPLERATE_8; 164 } 165} 166 167static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate) 168{ 169 switch (rate) { 170 case 8000: return A_ADCCR_SAMPLERATE_8; 171 case 11025: return A_ADCCR_SAMPLERATE_11; 172 case 12000: return A_ADCCR_SAMPLERATE_12; 173 case 16000: return ADCCR_SAMPLERATE_16; 174 case 22050: return ADCCR_SAMPLERATE_22; 175 case 24000: return ADCCR_SAMPLERATE_24; 176 case 32000: return ADCCR_SAMPLERATE_32; 177 case 44100: return ADCCR_SAMPLERATE_44; 178 case 48000: return ADCCR_SAMPLERATE_48; 179 default: 180 snd_BUG(); 181 return A_ADCCR_SAMPLERATE_8; 182 } 183} 184 185static void snd_emu10k1_constrain_capture_rates(struct snd_emu10k1 *emu, 186 struct snd_pcm_runtime *runtime) 187{ 188 if (emu->card_capabilities->emu_model && 189 emu->emu1010.word_clock == 44100) { 190 runtime->hw.rates = SNDRV_PCM_RATE_11025 | \ 191 SNDRV_PCM_RATE_22050 | \ 192 SNDRV_PCM_RATE_44100; 193 runtime->hw.rate_min = 11025; 194 runtime->hw.rate_max = 44100; 195 } else if (emu->audigy) { 196 runtime->hw.rates = SNDRV_PCM_RATE_8000_48000 | 197 SNDRV_PCM_RATE_12000 | 198 SNDRV_PCM_RATE_24000; 199 } 200} 201 202static void snd_emu1010_constrain_efx_rate(struct snd_emu10k1 *emu, 203 struct snd_pcm_runtime *runtime) 204{ 205 int rate; 206 207 rate = emu->emu1010.word_clock; 208 runtime->hw.rate_min = runtime->hw.rate_max = rate; 209 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate); 210} 211 212static unsigned int emu10k1_calc_pitch_target(unsigned int rate) 213{ 214 unsigned int pitch_target; 215 216 pitch_target = (rate << 8) / 375; 217 pitch_target = (pitch_target >> 1) + (pitch_target & 1); 218 return pitch_target; 219} 220 221#define PITCH_48000 0x00004000 222#define PITCH_96000 0x00008000 223#define PITCH_85000 0x00007155 224#define PITCH_80726 0x00006ba2 225#define PITCH_67882 0x00005a82 226#define PITCH_57081 0x00004c1c 227 228static unsigned int emu10k1_select_interprom(unsigned int pitch_target) 229{ 230 if (pitch_target == PITCH_48000) 231 return CCCA_INTERPROM_0; 232 else if (pitch_target < PITCH_48000) 233 return CCCA_INTERPROM_1; 234 else if (pitch_target >= PITCH_96000) 235 return CCCA_INTERPROM_0; 236 else if (pitch_target >= PITCH_85000) 237 return CCCA_INTERPROM_6; 238 else if (pitch_target >= PITCH_80726) 239 return CCCA_INTERPROM_5; 240 else if (pitch_target >= PITCH_67882) 241 return CCCA_INTERPROM_4; 242 else if (pitch_target >= PITCH_57081) 243 return CCCA_INTERPROM_3; 244 else 245 return CCCA_INTERPROM_2; 246} 247 248static u16 emu10k1_send_target_from_amount(u8 amount) 249{ 250 static const u8 shifts[8] = { 4, 4, 5, 6, 7, 8, 9, 10 }; 251 static const u16 offsets[8] = { 0, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000 }; 252 u8 exp; 253 254 if (amount == 0xff) 255 return 0xffff; 256 exp = amount >> 5; 257 return ((amount & 0x1f) << shifts[exp]) + offsets[exp]; 258} 259 260static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, 261 struct snd_emu10k1_voice *evoice, 262 bool w_16, bool stereo, 263 unsigned int start_addr, 264 unsigned int end_addr, 265 const unsigned char *send_routing, 266 const unsigned char *send_amount) 267{ 268 unsigned int silent_page; 269 int voice; 270 271 voice = evoice->number; 272 273 silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | 274 (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); 275 snd_emu10k1_ptr_write_multiple(emu, voice, 276 // Not really necessary for the slave, but it doesn't hurt 277 CPF, stereo ? CPF_STEREO_MASK : 0, 278 // Assumption that PT is already 0 so no harm overwriting 279 PTRX, (send_amount[0] << 8) | send_amount[1], 280 // Stereo slaves don't need to have the addresses set, but it doesn't hurt 281 DSL, end_addr | (send_amount[3] << 24), 282 PSST, start_addr | (send_amount[2] << 24), 283 CCCA, emu10k1_select_interprom(evoice->epcm->pitch_target) | 284 (w_16 ? 0 : CCCA_8BITSELECT), 285 // Clear filter delay memory 286 Z1, 0, 287 Z2, 0, 288 // Invalidate maps 289 MAPA, silent_page, 290 MAPB, silent_page, 291 // Disable filter (in conjunction with CCCA_RESONANCE == 0) 292 VTFT, VTFT_FILTERTARGET_MASK, 293 CVCF, CVCF_CURRENTFILTER_MASK, 294 REGLIST_END); 295 // Setup routing 296 if (emu->audigy) { 297 snd_emu10k1_ptr_write_multiple(emu, voice, 298 A_FXRT1, snd_emu10k1_compose_audigy_fxrt1(send_routing), 299 A_FXRT2, snd_emu10k1_compose_audigy_fxrt2(send_routing), 300 A_SENDAMOUNTS, snd_emu10k1_compose_audigy_sendamounts(send_amount), 301 REGLIST_END); 302 for (int i = 0; i < 4; i++) { 303 u32 aml = emu10k1_send_target_from_amount(send_amount[2 * i]); 304 u32 amh = emu10k1_send_target_from_amount(send_amount[2 * i + 1]); 305 snd_emu10k1_ptr_write(emu, A_CSBA + i, voice, (amh << 16) | aml); 306 } 307 } else { 308 snd_emu10k1_ptr_write(emu, FXRT, voice, 309 snd_emu10k1_compose_send_routing(send_routing)); 310 } 311 312 emu->voices[voice].dirty = 1; 313} 314 315static void snd_emu10k1_pcm_init_voices(struct snd_emu10k1 *emu, 316 struct snd_emu10k1_voice *evoice, 317 bool w_16, bool stereo, 318 unsigned int start_addr, 319 unsigned int end_addr, 320 struct snd_emu10k1_pcm_mixer *mix) 321{ 322 guard(spinlock_irq)(&emu->reg_lock); 323 snd_emu10k1_pcm_init_voice(emu, evoice, w_16, stereo, 324 start_addr, end_addr, 325 &mix->send_routing[stereo][0], 326 &mix->send_volume[stereo][0]); 327 if (stereo) 328 snd_emu10k1_pcm_init_voice(emu, evoice + 1, w_16, true, 329 start_addr, end_addr, 330 &mix->send_routing[2][0], 331 &mix->send_volume[2][0]); 332} 333 334static void snd_emu10k1_pcm_init_extra_voice(struct snd_emu10k1 *emu, 335 struct snd_emu10k1_voice *evoice, 336 bool w_16, 337 unsigned int start_addr, 338 unsigned int end_addr) 339{ 340 static const unsigned char send_routing[8] = { 0, 1, 2, 3, 4, 5, 6, 7 }; 341 static const unsigned char send_amount[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 342 343 snd_emu10k1_pcm_init_voice(emu, evoice, w_16, false, 344 start_addr, end_addr, 345 send_routing, send_amount); 346} 347 348static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream, 349 struct snd_pcm_hw_params *hw_params) 350{ 351 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 352 struct snd_pcm_runtime *runtime = substream->runtime; 353 struct snd_emu10k1_pcm *epcm = runtime->private_data; 354 size_t alloc_size; 355 int type, channels, count; 356 int err; 357 358 if (epcm->type == PLAYBACK_EMUVOICE) { 359 type = EMU10K1_PCM; 360 channels = 1; 361 count = params_channels(hw_params); 362 } else { 363 type = EMU10K1_EFX; 364 channels = params_channels(hw_params); 365 count = 1; 366 } 367 err = snd_emu10k1_pcm_channel_alloc(epcm, type, count, channels); 368 if (err < 0) 369 return err; 370 371 alloc_size = params_buffer_bytes(hw_params); 372 if (emu->iommu_workaround) 373 alloc_size += EMUPAGESIZE; 374 err = snd_pcm_lib_malloc_pages(substream, alloc_size); 375 if (err < 0) 376 return err; 377 if (emu->iommu_workaround && runtime->dma_bytes >= EMUPAGESIZE) 378 runtime->dma_bytes -= EMUPAGESIZE; 379 if (err > 0) { /* change */ 380 int mapped; 381 if (epcm->memblk != NULL) 382 snd_emu10k1_free_pages(emu, epcm->memblk); 383 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream); 384 epcm->start_addr = 0; 385 if (! epcm->memblk) 386 return -ENOMEM; 387 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page; 388 if (mapped < 0) 389 return -ENOMEM; 390 epcm->start_addr = mapped << PAGE_SHIFT; 391 } 392 return 0; 393} 394 395static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream) 396{ 397 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 398 struct snd_pcm_runtime *runtime = substream->runtime; 399 struct snd_emu10k1_pcm *epcm; 400 401 if (runtime->private_data == NULL) 402 return 0; 403 epcm = runtime->private_data; 404 if (epcm->extra) { 405 snd_emu10k1_voice_free(epcm->emu, epcm->extra); 406 epcm->extra = NULL; 407 } 408 snd_emu10k1_pcm_free_voices(epcm); 409 if (epcm->memblk) { 410 snd_emu10k1_free_pages(emu, epcm->memblk); 411 epcm->memblk = NULL; 412 epcm->start_addr = 0; 413 } 414 snd_pcm_lib_free_pages(substream); 415 return 0; 416} 417 418static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream) 419{ 420 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 421 struct snd_pcm_runtime *runtime = substream->runtime; 422 struct snd_emu10k1_pcm *epcm = runtime->private_data; 423 bool w_16 = snd_pcm_format_width(runtime->format) == 16; 424 bool stereo = runtime->channels == 2; 425 unsigned int start_addr, end_addr; 426 unsigned int rate; 427 428 rate = runtime->rate; 429 if (emu->card_capabilities->emu_model && 430 emu->emu1010.word_clock == 44100) 431 rate = rate * 480 / 441; 432 epcm->pitch_target = emu10k1_calc_pitch_target(rate); 433 434 start_addr = epcm->start_addr >> w_16; 435 end_addr = start_addr + runtime->period_size; 436 snd_emu10k1_pcm_init_extra_voice(emu, epcm->extra, w_16, 437 start_addr, end_addr); 438 start_addr >>= stereo; 439 epcm->ccca_start_addr = start_addr; 440 end_addr = start_addr + runtime->buffer_size; 441 snd_emu10k1_pcm_init_voices(emu, epcm->voices[0], w_16, stereo, 442 start_addr, end_addr, 443 &emu->pcm_mixer[substream->number]); 444 445 return 0; 446} 447 448static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) 449{ 450 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 451 struct snd_pcm_runtime *runtime = substream->runtime; 452 struct snd_emu10k1_pcm *epcm = runtime->private_data; 453 unsigned int start_addr; 454 unsigned int extra_size, channel_size; 455 unsigned int i; 456 457 epcm->pitch_target = PITCH_48000; 458 459 start_addr = epcm->start_addr >> 1; // 16-bit voices 460 461 extra_size = runtime->period_size; 462 channel_size = runtime->buffer_size; 463 464 snd_emu10k1_pcm_init_extra_voice(emu, epcm->extra, true, 465 start_addr, start_addr + extra_size); 466 467 epcm->ccca_start_addr = start_addr; 468 for (i = 0; i < runtime->channels; i++) { 469 snd_emu10k1_pcm_init_voices(emu, epcm->voices[i], true, false, 470 start_addr, start_addr + channel_size, 471 &emu->efx_pcm_mixer[i]); 472 start_addr += channel_size; 473 } 474 475 return 0; 476} 477 478static const struct snd_pcm_hardware snd_emu10k1_efx_playback = 479{ 480 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED | 481 SNDRV_PCM_INFO_BLOCK_TRANSFER | 482 SNDRV_PCM_INFO_RESUME | 483 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), 484 .formats = SNDRV_PCM_FMTBIT_S16_LE, 485 .rates = SNDRV_PCM_RATE_48000, 486 .rate_min = 48000, 487 .rate_max = 48000, 488 .channels_min = 1, 489 .channels_max = NUM_EFX_PLAYBACK, 490 .buffer_bytes_max = (128*1024), 491 .period_bytes_max = (128*1024), 492 .periods_min = 2, 493 .periods_max = 1024, 494 .fifo_size = 0, 495}; 496 497static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream) 498{ 499 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 500 struct snd_pcm_runtime *runtime = substream->runtime; 501 struct snd_emu10k1_pcm *epcm = runtime->private_data; 502 int idx; 503 504 /* zeroing the buffer size will stop capture */ 505 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0); 506 switch (epcm->type) { 507 case CAPTURE_AC97ADC: 508 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0); 509 break; 510 case CAPTURE_EFX: 511 if (emu->card_capabilities->emu_model) { 512 // The upper 32 16-bit capture voices, two for each of the 16 32-bit channels. 513 // The lower voices are occupied by A_EXTOUT_*_CAP*. 514 epcm->capture_cr_val = 0; 515 epcm->capture_cr_val2 = 0xffffffff >> (32 - runtime->channels * 2); 516 } 517 if (emu->audigy) { 518 snd_emu10k1_ptr_write_multiple(emu, 0, 519 A_FXWC1, 0, 520 A_FXWC2, 0, 521 REGLIST_END); 522 } else 523 snd_emu10k1_ptr_write(emu, FXWC, 0, 0); 524 break; 525 default: 526 break; 527 } 528 snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr); 529 epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream); 530 epcm->capture_bs_val = 0; 531 for (idx = 0; idx < 31; idx++) { 532 if (capture_buffer_sizes[idx] == epcm->capture_bufsize) { 533 epcm->capture_bs_val = idx + 1; 534 break; 535 } 536 } 537 if (epcm->capture_bs_val == 0) { 538 snd_BUG(); 539 epcm->capture_bs_val++; 540 } 541 if (epcm->type == CAPTURE_AC97ADC) { 542 unsigned rate = runtime->rate; 543 if (!(runtime->hw.rates & SNDRV_PCM_RATE_48000)) 544 rate = rate * 480 / 441; 545 546 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE; 547 if (runtime->channels > 1) 548 epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE; 549 epcm->capture_cr_val |= emu->audigy ? 550 snd_emu10k1_audigy_capture_rate_reg(rate) : 551 snd_emu10k1_capture_rate_reg(rate); 552 } 553 return 0; 554} 555 556static void snd_emu10k1_playback_fill_cache(struct snd_emu10k1 *emu, 557 unsigned voice, 558 u32 sample, bool stereo) 559{ 560 u32 ccr; 561 562 // We assume that the cache is resting at this point (i.e., 563 // CCR_CACHEINVALIDSIZE is very small). 564 565 // Clear leading frames. For simplicitly, this does too much, 566 // except for 16-bit stereo. And the interpolator will actually 567 // access them at all only when we're pitch-shifting. 568 for (int i = 0; i < 3; i++) 569 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample); 570 571 // Fill cache 572 ccr = (64 - 3) << REG_SHIFT(CCR_CACHEINVALIDSIZE); 573 if (stereo) { 574 // The engine goes haywire if CCR_READADDRESS is out of sync 575 snd_emu10k1_ptr_write(emu, CCR, voice + 1, ccr); 576 } 577 snd_emu10k1_ptr_write(emu, CCR, voice, ccr); 578} 579 580static void snd_emu10k1_playback_prepare_voices(struct snd_emu10k1 *emu, 581 struct snd_emu10k1_pcm *epcm, 582 bool w_16, bool stereo, 583 int channels) 584{ 585 struct snd_pcm_substream *substream = epcm->substream; 586 struct snd_pcm_runtime *runtime = substream->runtime; 587 unsigned eloop_start = epcm->start_addr >> w_16; 588 unsigned loop_start = eloop_start >> stereo; 589 unsigned eloop_size = runtime->period_size; 590 unsigned loop_size = runtime->buffer_size; 591 u32 sample = w_16 ? 0 : 0x80808080; 592 593 // To make the playback actually start at the 1st frame, 594 // we need to compensate for two circumstances: 595 // - The actual position is delayed by the cache size (64 frames) 596 // - The interpolator is centered around the 4th frame 597 loop_start += (epcm->resume_pos + 64 - 3) % loop_size; 598 for (int i = 0; i < channels; i++) { 599 unsigned voice = epcm->voices[i]->number; 600 snd_emu10k1_ptr_write(emu, CCCA_CURRADDR, voice, loop_start); 601 loop_start += loop_size; 602 snd_emu10k1_playback_fill_cache(emu, voice, sample, stereo); 603 } 604 605 // The interrupt is triggered when CCCA_CURRADDR (CA) wraps around, 606 // which is ahead of the actual playback position, so the interrupt 607 // source needs to be delayed. 608 // 609 // In principle, this wouldn't need to be the cache's entire size - in 610 // practice, CCR_CACHEINVALIDSIZE (CIS) > `fetch threshold` has never 611 // been observed, and assuming 40 _bytes_ should be safe. 612 // 613 // The cache fills are somewhat random, which makes it impossible to 614 // align them with the interrupts. This makes a non-delayed interrupt 615 // source not practical, as the interrupt handler would have to wait 616 // for (CA - CIS) >= period_boundary for every channel in the stream. 617 // 618 // This is why all other (open) drivers for these chips use timer-based 619 // interrupts. 620 // 621 eloop_start += (epcm->resume_pos + eloop_size - 3) % eloop_size; 622 snd_emu10k1_ptr_write(emu, CCCA_CURRADDR, epcm->extra->number, eloop_start); 623 624 // It takes a moment until the cache fills complete, 625 // but the unmuting takes long enough for that. 626} 627 628static void snd_emu10k1_playback_commit_volume(struct snd_emu10k1 *emu, 629 struct snd_emu10k1_voice *evoice, 630 unsigned int vattn) 631{ 632 snd_emu10k1_ptr_write_multiple(emu, evoice->number, 633 VTFT, vattn | VTFT_FILTERTARGET_MASK, 634 CVCF, vattn | CVCF_CURRENTFILTER_MASK, 635 REGLIST_END); 636} 637 638static void snd_emu10k1_playback_unmute_voice(struct snd_emu10k1 *emu, 639 struct snd_emu10k1_voice *evoice, 640 bool stereo, bool master, 641 struct snd_emu10k1_pcm_mixer *mix) 642{ 643 unsigned int vattn; 644 unsigned int tmp; 645 646 tmp = stereo ? (master ? 1 : 2) : 0; 647 vattn = mix->attn[tmp] << 16; 648 snd_emu10k1_playback_commit_volume(emu, evoice, vattn); 649} 650 651static void snd_emu10k1_playback_unmute_voices(struct snd_emu10k1 *emu, 652 struct snd_emu10k1_voice *evoice, 653 bool stereo, 654 struct snd_emu10k1_pcm_mixer *mix) 655{ 656 snd_emu10k1_playback_unmute_voice(emu, evoice, stereo, true, mix); 657 if (stereo) 658 snd_emu10k1_playback_unmute_voice(emu, evoice + 1, true, false, mix); 659} 660 661static void snd_emu10k1_playback_mute_voice(struct snd_emu10k1 *emu, 662 struct snd_emu10k1_voice *evoice) 663{ 664 snd_emu10k1_playback_commit_volume(emu, evoice, 0); 665} 666 667static void snd_emu10k1_playback_mute_voices(struct snd_emu10k1 *emu, 668 struct snd_emu10k1_voice *evoice, 669 bool stereo) 670{ 671 snd_emu10k1_playback_mute_voice(emu, evoice); 672 if (stereo) 673 snd_emu10k1_playback_mute_voice(emu, evoice + 1); 674} 675 676static void snd_emu10k1_playback_commit_pitch(struct snd_emu10k1 *emu, 677 u32 voice, u32 pitch_target) 678{ 679 u32 ptrx = snd_emu10k1_ptr_read(emu, PTRX, voice); 680 u32 cpf = snd_emu10k1_ptr_read(emu, CPF, voice); 681 snd_emu10k1_ptr_write_multiple(emu, voice, 682 PTRX, (ptrx & ~PTRX_PITCHTARGET_MASK) | pitch_target, 683 CPF, (cpf & ~(CPF_CURRENTPITCH_MASK | CPF_FRACADDRESS_MASK)) | pitch_target, 684 REGLIST_END); 685} 686 687static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, 688 struct snd_emu10k1_voice *evoice) 689{ 690 unsigned int voice; 691 692 voice = evoice->number; 693 snd_emu10k1_playback_commit_pitch(emu, voice, evoice->epcm->pitch_target << 16); 694} 695 696static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, 697 struct snd_emu10k1_voice *evoice) 698{ 699 unsigned int voice; 700 701 voice = evoice->number; 702 snd_emu10k1_playback_commit_pitch(emu, voice, 0); 703} 704 705static void snd_emu10k1_playback_set_running(struct snd_emu10k1 *emu, 706 struct snd_emu10k1_pcm *epcm) 707{ 708 epcm->running = 1; 709 snd_emu10k1_voice_intr_enable(emu, epcm->extra->number); 710} 711 712static void snd_emu10k1_playback_set_stopped(struct snd_emu10k1 *emu, 713 struct snd_emu10k1_pcm *epcm) 714{ 715 snd_emu10k1_voice_intr_disable(emu, epcm->extra->number); 716 epcm->running = 0; 717} 718 719static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream, 720 int cmd) 721{ 722 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 723 struct snd_pcm_runtime *runtime = substream->runtime; 724 struct snd_emu10k1_pcm *epcm = runtime->private_data; 725 struct snd_emu10k1_pcm_mixer *mix; 726 bool w_16 = snd_pcm_format_width(runtime->format) == 16; 727 bool stereo = runtime->channels == 2; 728 729 /* 730 dev_dbg(emu->card->dev, 731 "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", 732 (int)emu, cmd, substream->ops->pointer(substream)) 733 */ 734 guard(spinlock)(&emu->reg_lock); 735 switch (cmd) { 736 case SNDRV_PCM_TRIGGER_START: 737 snd_emu10k1_playback_prepare_voices(emu, epcm, w_16, stereo, 1); 738 fallthrough; 739 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 740 case SNDRV_PCM_TRIGGER_RESUME: 741 mix = &emu->pcm_mixer[substream->number]; 742 snd_emu10k1_playback_unmute_voices(emu, epcm->voices[0], stereo, mix); 743 snd_emu10k1_playback_set_running(emu, epcm); 744 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0]); 745 snd_emu10k1_playback_trigger_voice(emu, epcm->extra); 746 break; 747 case SNDRV_PCM_TRIGGER_STOP: 748 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 749 case SNDRV_PCM_TRIGGER_SUSPEND: 750 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]); 751 snd_emu10k1_playback_stop_voice(emu, epcm->extra); 752 snd_emu10k1_playback_set_stopped(emu, epcm); 753 snd_emu10k1_playback_mute_voices(emu, epcm->voices[0], stereo); 754 break; 755 default: 756 return -EINVAL; 757 } 758 return 0; 759} 760 761static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream, 762 int cmd) 763{ 764 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 765 struct snd_pcm_runtime *runtime = substream->runtime; 766 struct snd_emu10k1_pcm *epcm = runtime->private_data; 767 768 guard(spinlock)(&emu->reg_lock); 769 switch (cmd) { 770 case SNDRV_PCM_TRIGGER_START: 771 case SNDRV_PCM_TRIGGER_RESUME: 772 /* hmm this should cause full and half full interrupt to be raised? */ 773 outl(epcm->capture_ipr, emu->port + IPR); 774 snd_emu10k1_intr_enable(emu, epcm->capture_inte); 775 /* 776 dev_dbg(emu->card->dev, "adccr = 0x%x, adcbs = 0x%x\n", 777 epcm->adccr, epcm->adcbs); 778 */ 779 switch (epcm->type) { 780 case CAPTURE_AC97ADC: 781 snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val); 782 break; 783 case CAPTURE_EFX: 784 if (emu->audigy) { 785 snd_emu10k1_ptr_write_multiple(emu, 0, 786 A_FXWC1, epcm->capture_cr_val, 787 A_FXWC2, epcm->capture_cr_val2, 788 REGLIST_END); 789 dev_dbg(emu->card->dev, 790 "cr_val=0x%x, cr_val2=0x%x\n", 791 epcm->capture_cr_val, 792 epcm->capture_cr_val2); 793 } else 794 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val); 795 break; 796 default: 797 break; 798 } 799 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val); 800 epcm->running = 1; 801 epcm->first_ptr = 1; 802 break; 803 case SNDRV_PCM_TRIGGER_STOP: 804 case SNDRV_PCM_TRIGGER_SUSPEND: 805 epcm->running = 0; 806 snd_emu10k1_intr_disable(emu, epcm->capture_inte); 807 outl(epcm->capture_ipr, emu->port + IPR); 808 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0); 809 switch (epcm->type) { 810 case CAPTURE_AC97ADC: 811 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0); 812 break; 813 case CAPTURE_EFX: 814 if (emu->audigy) { 815 snd_emu10k1_ptr_write_multiple(emu, 0, 816 A_FXWC1, 0, 817 A_FXWC2, 0, 818 REGLIST_END); 819 } else 820 snd_emu10k1_ptr_write(emu, FXWC, 0, 0); 821 break; 822 default: 823 break; 824 } 825 break; 826 default: 827 return -EINVAL; 828 } 829 return 0; 830} 831 832static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream) 833{ 834 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 835 struct snd_pcm_runtime *runtime = substream->runtime; 836 struct snd_emu10k1_pcm *epcm = runtime->private_data; 837 int ptr; 838 839 if (!epcm->running) 840 return 0; 841 842 ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff; 843 ptr -= epcm->ccca_start_addr; 844 845 // This is the size of the whole cache minus the interpolator read-ahead, 846 // which leads us to the actual playback position. 847 // 848 // The cache is constantly kept mostly filled, so in principle we could 849 // return a more advanced position representing how far the hardware has 850 // already read the buffer, and set runtime->delay accordingly. However, 851 // this would be slightly different for every channel (and remarkably slow 852 // to obtain), so only a fixed worst-case value would be practical. 853 // 854 ptr -= 64 - 3; 855 if (ptr < 0) 856 ptr += runtime->buffer_size; 857 858 /* 859 dev_dbg(emu->card->dev, 860 "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n", 861 (long)ptr, (long)runtime->buffer_size, 862 (long)runtime->period_size); 863 */ 864 return ptr; 865} 866 867static u64 snd_emu10k1_efx_playback_voice_mask(struct snd_emu10k1_pcm *epcm, 868 int channels) 869{ 870 u64 mask = 0; 871 872 for (int i = 0; i < channels; i++) { 873 int voice = epcm->voices[i]->number; 874 mask |= 1ULL << voice; 875 } 876 return mask; 877} 878 879static void snd_emu10k1_efx_playback_freeze_voices(struct snd_emu10k1 *emu, 880 struct snd_emu10k1_pcm *epcm, 881 int channels) 882{ 883 for (int i = 0; i < channels; i++) { 884 int voice = epcm->voices[i]->number; 885 snd_emu10k1_ptr_write(emu, CPF_STOP, voice, 1); 886 snd_emu10k1_playback_commit_pitch(emu, voice, PITCH_48000 << 16); 887 } 888} 889 890static void snd_emu10k1_efx_playback_unmute_voices(struct snd_emu10k1 *emu, 891 struct snd_emu10k1_pcm *epcm, 892 int channels) 893{ 894 for (int i = 0; i < channels; i++) 895 snd_emu10k1_playback_unmute_voice(emu, epcm->voices[i], false, true, 896 &emu->efx_pcm_mixer[i]); 897} 898 899static void snd_emu10k1_efx_playback_stop_voices(struct snd_emu10k1 *emu, 900 struct snd_emu10k1_pcm *epcm, 901 int channels) 902{ 903 for (int i = 0; i < channels; i++) 904 snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]); 905 snd_emu10k1_playback_set_stopped(emu, epcm); 906 907 for (int i = 0; i < channels; i++) 908 snd_emu10k1_playback_mute_voice(emu, epcm->voices[i]); 909} 910 911static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, 912 int cmd) 913{ 914 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 915 struct snd_pcm_runtime *runtime = substream->runtime; 916 struct snd_emu10k1_pcm *epcm = runtime->private_data; 917 u64 mask; 918 int result = 0; 919 920 guard(spinlock)(&emu->reg_lock); 921 switch (cmd) { 922 case SNDRV_PCM_TRIGGER_START: 923 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 924 case SNDRV_PCM_TRIGGER_RESUME: 925 mask = snd_emu10k1_efx_playback_voice_mask( 926 epcm, runtime->channels); 927 for (int i = 0; i < 10; i++) { 928 // Note that the freeze is not interruptible, so we make no 929 // effort to reset the bits outside the error handling here. 930 snd_emu10k1_voice_set_loop_stop_multiple(emu, mask); 931 snd_emu10k1_efx_playback_freeze_voices( 932 emu, epcm, runtime->channels); 933 snd_emu10k1_playback_prepare_voices( 934 emu, epcm, true, false, runtime->channels); 935 936 // It might seem to make more sense to unmute the voices only after 937 // they have been started, to potentially avoid torturing the speakers 938 // if something goes wrong. However, we cannot unmute atomically, 939 // which means that we'd get some mild artifacts in the regular case. 940 snd_emu10k1_efx_playback_unmute_voices(emu, epcm, runtime->channels); 941 942 snd_emu10k1_playback_set_running(emu, epcm); 943 result = snd_emu10k1_voice_clear_loop_stop_multiple_atomic(emu, mask); 944 if (result == 0) { 945 // The extra voice is allowed to lag a bit 946 snd_emu10k1_playback_trigger_voice(emu, epcm->extra); 947 return 0; 948 } 949 950 snd_emu10k1_efx_playback_stop_voices( 951 emu, epcm, runtime->channels); 952 953 if (result != -EAGAIN) 954 break; 955 // The sync start can legitimately fail due to NMIs, etc. 956 } 957 snd_emu10k1_voice_clear_loop_stop_multiple(emu, mask); 958 break; 959 case SNDRV_PCM_TRIGGER_SUSPEND: 960 case SNDRV_PCM_TRIGGER_STOP: 961 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 962 snd_emu10k1_playback_stop_voice(emu, epcm->extra); 963 snd_emu10k1_efx_playback_stop_voices( 964 emu, epcm, runtime->channels); 965 966 epcm->resume_pos = snd_emu10k1_playback_pointer(substream); 967 break; 968 default: 969 return -EINVAL; 970 } 971 return result; 972} 973 974 975static snd_pcm_uframes_t snd_emu10k1_capture_pointer(struct snd_pcm_substream *substream) 976{ 977 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 978 struct snd_pcm_runtime *runtime = substream->runtime; 979 struct snd_emu10k1_pcm *epcm = runtime->private_data; 980 unsigned int ptr; 981 982 if (!epcm->running) 983 return 0; 984 if (epcm->first_ptr) { 985 udelay(50); /* hack, it takes awhile until capture is started */ 986 epcm->first_ptr = 0; 987 } 988 ptr = snd_emu10k1_ptr_read(emu, epcm->capture_idx_reg, 0) & 0x0000ffff; 989 return bytes_to_frames(runtime, ptr); 990} 991 992/* 993 * Playback support device description 994 */ 995 996static const struct snd_pcm_hardware snd_emu10k1_playback = 997{ 998 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 999 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1000 SNDRV_PCM_INFO_RESUME | 1001 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), 1002 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 1003 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_96000, 1004 .rate_min = 4000, 1005 .rate_max = 96000, 1006 .channels_min = 1, 1007 .channels_max = 2, 1008 .buffer_bytes_max = (128*1024), 1009 .period_bytes_max = (128*1024), 1010 .periods_min = 2, 1011 .periods_max = 1024, 1012 .fifo_size = 0, 1013}; 1014 1015/* 1016 * Capture support device description 1017 */ 1018 1019static const struct snd_pcm_hardware snd_emu10k1_capture = 1020{ 1021 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1022 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1023 SNDRV_PCM_INFO_RESUME | 1024 SNDRV_PCM_INFO_MMAP_VALID), 1025 .formats = SNDRV_PCM_FMTBIT_S16_LE, 1026 .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_24000, 1027 .rate_min = 8000, 1028 .rate_max = 48000, 1029 .channels_min = 1, 1030 .channels_max = 2, 1031 .buffer_bytes_max = (64*1024), 1032 .period_bytes_min = 384, 1033 .period_bytes_max = (64*1024), 1034 .periods_min = 2, 1035 .periods_max = 2, 1036 .fifo_size = 0, 1037}; 1038 1039static const struct snd_pcm_hardware snd_emu10k1_capture_efx = 1040{ 1041 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1042 SNDRV_PCM_INFO_BLOCK_TRANSFER | 1043 SNDRV_PCM_INFO_RESUME | 1044 SNDRV_PCM_INFO_MMAP_VALID), 1045 .formats = SNDRV_PCM_FMTBIT_S16_LE, 1046 .rates = SNDRV_PCM_RATE_48000, 1047 .rate_min = 48000, 1048 .rate_max = 48000, 1049 .channels_min = 1, 1050 .channels_max = 16, 1051 .buffer_bytes_max = (64*1024), 1052 .period_bytes_min = 384, 1053 .period_bytes_max = (64*1024), 1054 .periods_min = 2, 1055 .periods_max = 2, 1056 .fifo_size = 0, 1057}; 1058 1059/* 1060 * 1061 */ 1062 1063static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate) 1064{ 1065 struct snd_ctl_elem_id id; 1066 1067 if (! kctl) 1068 return; 1069 if (activate) 1070 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; 1071 else 1072 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; 1073 snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE | 1074 SNDRV_CTL_EVENT_MASK_INFO, 1075 snd_ctl_build_ioff(&id, kctl, idx)); 1076} 1077 1078static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) 1079{ 1080 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate); 1081 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate); 1082 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate); 1083} 1084 1085static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) 1086{ 1087 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate); 1088 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate); 1089 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate); 1090} 1091 1092static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime) 1093{ 1094 kfree(runtime->private_data); 1095} 1096 1097static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream) 1098{ 1099 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1100 struct snd_emu10k1_pcm_mixer *mix; 1101 int i; 1102 1103 for (i = 0; i < NUM_EFX_PLAYBACK; i++) { 1104 mix = &emu->efx_pcm_mixer[i]; 1105 mix->epcm = NULL; 1106 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0); 1107 } 1108 return 0; 1109} 1110 1111static int snd_emu10k1_playback_set_constraints(struct snd_pcm_runtime *runtime) 1112{ 1113 int err; 1114 1115 // The buffer size must be a multiple of the period size, to avoid a 1116 // mismatch between the extra voice and the regular voices. 1117 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 1118 if (err < 0) 1119 return err; 1120 // The hardware is typically the cache's size of 64 frames ahead. 1121 // Leave enough time for actually filling up the buffer. 1122 err = snd_pcm_hw_constraint_minmax( 1123 runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 128, UINT_MAX); 1124 return err; 1125} 1126 1127static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream) 1128{ 1129 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1130 struct snd_emu10k1_pcm *epcm; 1131 struct snd_emu10k1_pcm_mixer *mix; 1132 struct snd_pcm_runtime *runtime = substream->runtime; 1133 int i, j, err; 1134 1135 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1136 if (epcm == NULL) 1137 return -ENOMEM; 1138 epcm->emu = emu; 1139 epcm->type = PLAYBACK_EFX; 1140 epcm->substream = substream; 1141 1142 runtime->private_data = epcm; 1143 runtime->private_free = snd_emu10k1_pcm_free_substream; 1144 runtime->hw = snd_emu10k1_efx_playback; 1145 if (emu->card_capabilities->emu_model) 1146 snd_emu1010_constrain_efx_rate(emu, runtime); 1147 err = snd_emu10k1_playback_set_constraints(runtime); 1148 if (err < 0) { 1149 kfree(epcm); 1150 return err; 1151 } 1152 1153 for (i = 0; i < NUM_EFX_PLAYBACK; i++) { 1154 mix = &emu->efx_pcm_mixer[i]; 1155 for (j = 0; j < 8; j++) 1156 mix->send_routing[0][j] = i + j; 1157 memset(&mix->send_volume, 0, sizeof(mix->send_volume)); 1158 mix->send_volume[0][0] = 255; 1159 mix->attn[0] = 0x8000; 1160 mix->epcm = epcm; 1161 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 1); 1162 } 1163 return 0; 1164} 1165 1166static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream) 1167{ 1168 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1169 struct snd_emu10k1_pcm *epcm; 1170 struct snd_emu10k1_pcm_mixer *mix; 1171 struct snd_pcm_runtime *runtime = substream->runtime; 1172 int i, err, sample_rate; 1173 1174 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1175 if (epcm == NULL) 1176 return -ENOMEM; 1177 epcm->emu = emu; 1178 epcm->type = PLAYBACK_EMUVOICE; 1179 epcm->substream = substream; 1180 runtime->private_data = epcm; 1181 runtime->private_free = snd_emu10k1_pcm_free_substream; 1182 runtime->hw = snd_emu10k1_playback; 1183 err = snd_emu10k1_playback_set_constraints(runtime); 1184 if (err < 0) { 1185 kfree(epcm); 1186 return err; 1187 } 1188 if (emu->card_capabilities->emu_model) 1189 sample_rate = emu->emu1010.word_clock; 1190 else 1191 sample_rate = 48000; 1192 err = snd_pcm_hw_rule_noresample(runtime, sample_rate); 1193 if (err < 0) { 1194 kfree(epcm); 1195 return err; 1196 } 1197 mix = &emu->pcm_mixer[substream->number]; 1198 for (i = 0; i < 8; i++) 1199 mix->send_routing[0][i] = mix->send_routing[1][i] = mix->send_routing[2][i] = i; 1200 memset(&mix->send_volume, 0, sizeof(mix->send_volume)); 1201 mix->send_volume[0][0] = mix->send_volume[0][1] = 1202 mix->send_volume[1][0] = mix->send_volume[2][1] = 255; 1203 mix->attn[0] = mix->attn[1] = mix->attn[2] = 0x8000; 1204 mix->epcm = epcm; 1205 snd_emu10k1_pcm_mixer_notify(emu, substream->number, 1); 1206 return 0; 1207} 1208 1209static int snd_emu10k1_playback_close(struct snd_pcm_substream *substream) 1210{ 1211 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1212 struct snd_emu10k1_pcm_mixer *mix = &emu->pcm_mixer[substream->number]; 1213 1214 mix->epcm = NULL; 1215 snd_emu10k1_pcm_mixer_notify(emu, substream->number, 0); 1216 return 0; 1217} 1218 1219static int snd_emu10k1_capture_open(struct snd_pcm_substream *substream) 1220{ 1221 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1222 struct snd_pcm_runtime *runtime = substream->runtime; 1223 struct snd_emu10k1_pcm *epcm; 1224 1225 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1226 if (epcm == NULL) 1227 return -ENOMEM; 1228 epcm->emu = emu; 1229 epcm->type = CAPTURE_AC97ADC; 1230 epcm->substream = substream; 1231 epcm->capture_ipr = IPR_ADCBUFFULL|IPR_ADCBUFHALFFULL; 1232 epcm->capture_inte = INTE_ADCBUFENABLE; 1233 epcm->capture_ba_reg = ADCBA; 1234 epcm->capture_bs_reg = ADCBS; 1235 epcm->capture_idx_reg = emu->audigy ? A_ADCIDX : ADCIDX; 1236 runtime->private_data = epcm; 1237 runtime->private_free = snd_emu10k1_pcm_free_substream; 1238 runtime->hw = snd_emu10k1_capture; 1239 snd_emu10k1_constrain_capture_rates(emu, runtime); 1240 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 1241 &hw_constraints_capture_buffer_sizes); 1242 emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt; 1243 emu->pcm_capture_substream = substream; 1244 return 0; 1245} 1246 1247static int snd_emu10k1_capture_close(struct snd_pcm_substream *substream) 1248{ 1249 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1250 1251 emu->capture_interrupt = NULL; 1252 emu->pcm_capture_substream = NULL; 1253 return 0; 1254} 1255 1256static int snd_emu10k1_capture_mic_open(struct snd_pcm_substream *substream) 1257{ 1258 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1259 struct snd_emu10k1_pcm *epcm; 1260 struct snd_pcm_runtime *runtime = substream->runtime; 1261 1262 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1263 if (epcm == NULL) 1264 return -ENOMEM; 1265 epcm->emu = emu; 1266 epcm->type = CAPTURE_AC97MIC; 1267 epcm->substream = substream; 1268 epcm->capture_ipr = IPR_MICBUFFULL|IPR_MICBUFHALFFULL; 1269 epcm->capture_inte = INTE_MICBUFENABLE; 1270 epcm->capture_ba_reg = MICBA; 1271 epcm->capture_bs_reg = MICBS; 1272 epcm->capture_idx_reg = emu->audigy ? A_MICIDX : MICIDX; 1273 substream->runtime->private_data = epcm; 1274 substream->runtime->private_free = snd_emu10k1_pcm_free_substream; 1275 runtime->hw = snd_emu10k1_capture; 1276 runtime->hw.rates = SNDRV_PCM_RATE_8000; 1277 runtime->hw.rate_min = runtime->hw.rate_max = 8000; 1278 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 1279 &hw_constraints_capture_buffer_sizes); 1280 emu->capture_mic_interrupt = snd_emu10k1_pcm_ac97mic_interrupt; 1281 emu->pcm_capture_mic_substream = substream; 1282 return 0; 1283} 1284 1285static int snd_emu10k1_capture_mic_close(struct snd_pcm_substream *substream) 1286{ 1287 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1288 1289 emu->capture_mic_interrupt = NULL; 1290 emu->pcm_capture_mic_substream = NULL; 1291 return 0; 1292} 1293 1294static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream) 1295{ 1296 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1297 struct snd_emu10k1_pcm *epcm; 1298 struct snd_pcm_runtime *runtime = substream->runtime; 1299 int nefx = emu->audigy ? 64 : 32; 1300 int idx, err; 1301 1302 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1303 if (epcm == NULL) 1304 return -ENOMEM; 1305 epcm->emu = emu; 1306 epcm->type = CAPTURE_EFX; 1307 epcm->substream = substream; 1308 epcm->capture_ipr = IPR_EFXBUFFULL|IPR_EFXBUFHALFFULL; 1309 epcm->capture_inte = INTE_EFXBUFENABLE; 1310 epcm->capture_ba_reg = FXBA; 1311 epcm->capture_bs_reg = FXBS; 1312 epcm->capture_idx_reg = FXIDX; 1313 substream->runtime->private_data = epcm; 1314 substream->runtime->private_free = snd_emu10k1_pcm_free_substream; 1315 runtime->hw = snd_emu10k1_capture_efx; 1316 if (emu->card_capabilities->emu_model) { 1317 snd_emu1010_constrain_efx_rate(emu, runtime); 1318 /* 1319 * There are 32 mono channels of 16bits each. 1320 * 24bit Audio uses 2x channels over 16bit, 1321 * 96kHz uses 2x channels over 48kHz, 1322 * 192kHz uses 4x channels over 48kHz. 1323 * So, for 48kHz 24bit, one has 16 channels, 1324 * for 96kHz 24bit, one has 8 channels, 1325 * for 192kHz 24bit, one has 4 channels. 1326 * 1010rev2 and 1616(m) cards have double that, 1327 * but we don't exceed 16 channels anyway. 1328 */ 1329#if 0 1330 /* For 96kHz */ 1331 runtime->hw.channels_min = runtime->hw.channels_max = 4; 1332#endif 1333#if 0 1334 /* For 192kHz */ 1335 runtime->hw.channels_min = runtime->hw.channels_max = 2; 1336#endif 1337 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE; 1338 } else { 1339 guard(spinlock_irq)(&emu->reg_lock); 1340 runtime->hw.channels_min = runtime->hw.channels_max = 0; 1341 for (idx = 0; idx < nefx; idx++) { 1342 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) { 1343 runtime->hw.channels_min++; 1344 runtime->hw.channels_max++; 1345 } 1346 } 1347 epcm->capture_cr_val = emu->efx_voices_mask[0]; 1348 epcm->capture_cr_val2 = emu->efx_voices_mask[1]; 1349 } 1350 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 1351 &hw_constraints_efx_capture_channels); 1352 if (err < 0) { 1353 kfree(epcm); 1354 return err; 1355 } 1356 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 1357 &hw_constraints_capture_buffer_sizes); 1358 emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt; 1359 emu->pcm_capture_efx_substream = substream; 1360 return 0; 1361} 1362 1363static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream) 1364{ 1365 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1366 1367 emu->capture_efx_interrupt = NULL; 1368 emu->pcm_capture_efx_substream = NULL; 1369 return 0; 1370} 1371 1372static const struct snd_pcm_ops snd_emu10k1_playback_ops = { 1373 .open = snd_emu10k1_playback_open, 1374 .close = snd_emu10k1_playback_close, 1375 .hw_params = snd_emu10k1_playback_hw_params, 1376 .hw_free = snd_emu10k1_playback_hw_free, 1377 .prepare = snd_emu10k1_playback_prepare, 1378 .trigger = snd_emu10k1_playback_trigger, 1379 .pointer = snd_emu10k1_playback_pointer, 1380}; 1381 1382static const struct snd_pcm_ops snd_emu10k1_capture_ops = { 1383 .open = snd_emu10k1_capture_open, 1384 .close = snd_emu10k1_capture_close, 1385 .prepare = snd_emu10k1_capture_prepare, 1386 .trigger = snd_emu10k1_capture_trigger, 1387 .pointer = snd_emu10k1_capture_pointer, 1388}; 1389 1390/* EFX playback */ 1391static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = { 1392 .open = snd_emu10k1_efx_playback_open, 1393 .close = snd_emu10k1_efx_playback_close, 1394 .hw_params = snd_emu10k1_playback_hw_params, 1395 .hw_free = snd_emu10k1_playback_hw_free, 1396 .prepare = snd_emu10k1_efx_playback_prepare, 1397 .trigger = snd_emu10k1_efx_playback_trigger, 1398 .pointer = snd_emu10k1_playback_pointer, 1399}; 1400 1401int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device) 1402{ 1403 struct snd_pcm *pcm; 1404 struct snd_pcm_substream *substream; 1405 int err; 1406 1407 err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm); 1408 if (err < 0) 1409 return err; 1410 1411 pcm->private_data = emu; 1412 1413 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops); 1414 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops); 1415 1416 pcm->info_flags = 0; 1417 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 1418 strscpy(pcm->name, "ADC Capture/Standard PCM Playback"); 1419 emu->pcm = pcm; 1420 1421 /* playback substream can't use managed buffers due to alignment */ 1422 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) 1423 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, 1424 &emu->pci->dev, 1425 64*1024, 64*1024); 1426 1427 for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next) 1428 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV, 1429 &emu->pci->dev, 64*1024, 64*1024); 1430 1431 return 0; 1432} 1433 1434int snd_emu10k1_pcm_multi(struct snd_emu10k1 *emu, int device) 1435{ 1436 struct snd_pcm *pcm; 1437 struct snd_pcm_substream *substream; 1438 int err; 1439 1440 err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm); 1441 if (err < 0) 1442 return err; 1443 1444 pcm->private_data = emu; 1445 1446 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops); 1447 1448 pcm->info_flags = 0; 1449 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 1450 strscpy(pcm->name, "Multichannel Playback"); 1451 emu->pcm_multi = pcm; 1452 1453 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) 1454 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, 1455 &emu->pci->dev, 1456 64*1024, 64*1024); 1457 1458 return 0; 1459} 1460 1461 1462static const struct snd_pcm_ops snd_emu10k1_capture_mic_ops = { 1463 .open = snd_emu10k1_capture_mic_open, 1464 .close = snd_emu10k1_capture_mic_close, 1465 .prepare = snd_emu10k1_capture_prepare, 1466 .trigger = snd_emu10k1_capture_trigger, 1467 .pointer = snd_emu10k1_capture_pointer, 1468}; 1469 1470int snd_emu10k1_pcm_mic(struct snd_emu10k1 *emu, int device) 1471{ 1472 struct snd_pcm *pcm; 1473 int err; 1474 1475 err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm); 1476 if (err < 0) 1477 return err; 1478 1479 pcm->private_data = emu; 1480 1481 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops); 1482 1483 pcm->info_flags = 0; 1484 strscpy(pcm->name, "Mic Capture"); 1485 emu->pcm_mic = pcm; 1486 1487 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &emu->pci->dev, 1488 64*1024, 64*1024); 1489 1490 return 0; 1491} 1492 1493static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1494{ 1495 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1496 int nefx = emu->audigy ? 64 : 32; 1497 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1498 uinfo->count = nefx; 1499 uinfo->value.integer.min = 0; 1500 uinfo->value.integer.max = 1; 1501 return 0; 1502} 1503 1504static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1505{ 1506 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1507 int nefx = emu->audigy ? 64 : 32; 1508 int idx; 1509 1510 for (idx = 0; idx < nefx; idx++) 1511 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0; 1512 return 0; 1513} 1514 1515static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1516{ 1517 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1518 unsigned int nval[2], bits; 1519 int nefx = emu->audigy ? 64 : 32; 1520 int change, idx; 1521 1522 nval[0] = nval[1] = 0; 1523 for (idx = 0, bits = 0; idx < nefx; idx++) 1524 if (ucontrol->value.integer.value[idx]) { 1525 nval[idx / 32] |= 1 << (idx % 32); 1526 bits++; 1527 } 1528 1529 if (bits == 9 || bits == 11 || bits == 13 || bits == 15 || bits > 16) 1530 return -EINVAL; 1531 1532 guard(spinlock_irq)(&emu->reg_lock); 1533 change = (nval[0] != emu->efx_voices_mask[0]) || 1534 (nval[1] != emu->efx_voices_mask[1]); 1535 emu->efx_voices_mask[0] = nval[0]; 1536 emu->efx_voices_mask[1] = nval[1]; 1537 return change; 1538} 1539 1540static const struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = { 1541 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1542 .name = "Captured FX8010 Outputs", 1543 .info = snd_emu10k1_pcm_efx_voices_mask_info, 1544 .get = snd_emu10k1_pcm_efx_voices_mask_get, 1545 .put = snd_emu10k1_pcm_efx_voices_mask_put 1546}; 1547 1548static const struct snd_pcm_ops snd_emu10k1_capture_efx_ops = { 1549 .open = snd_emu10k1_capture_efx_open, 1550 .close = snd_emu10k1_capture_efx_close, 1551 .prepare = snd_emu10k1_capture_prepare, 1552 .trigger = snd_emu10k1_capture_trigger, 1553 .pointer = snd_emu10k1_capture_pointer, 1554}; 1555 1556 1557/* EFX playback */ 1558 1559#define INITIAL_TRAM_SHIFT 14 1560#define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1) 1561 1562static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data) 1563{ 1564 struct snd_pcm_substream *substream = private_data; 1565 snd_pcm_period_elapsed(substream); 1566} 1567 1568static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left, 1569 unsigned short *dst_right, 1570 unsigned short *src, 1571 unsigned int count, 1572 unsigned int tram_shift) 1573{ 1574 /* 1575 dev_dbg(emu->card->dev, 1576 "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, " 1577 "src = 0x%p, count = 0x%x\n", 1578 dst_left, dst_right, src, count); 1579 */ 1580 if ((tram_shift & 1) == 0) { 1581 while (count--) { 1582 *dst_left-- = *src++; 1583 *dst_right-- = *src++; 1584 } 1585 } else { 1586 while (count--) { 1587 *dst_right-- = *src++; 1588 *dst_left-- = *src++; 1589 } 1590 } 1591} 1592 1593static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream, 1594 struct snd_pcm_indirect *rec, size_t bytes) 1595{ 1596 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1597 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1598 unsigned int tram_size = pcm->buffer_size; 1599 unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data); 1600 unsigned int frames = bytes >> 2, count; 1601 unsigned int tram_pos = pcm->tram_pos; 1602 unsigned int tram_shift = pcm->tram_shift; 1603 1604 while (frames > tram_pos) { 1605 count = tram_pos + 1; 1606 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos, 1607 (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, 1608 src, count, tram_shift); 1609 src += count * 2; 1610 frames -= count; 1611 tram_pos = (tram_size / 2) - 1; 1612 tram_shift++; 1613 } 1614 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos, 1615 (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, 1616 src, frames, tram_shift); 1617 tram_pos -= frames; 1618 pcm->tram_pos = tram_pos; 1619 pcm->tram_shift = tram_shift; 1620} 1621 1622static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream) 1623{ 1624 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1625 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1626 1627 return snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, 1628 fx8010_pb_trans_copy); 1629} 1630 1631static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream) 1632{ 1633 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1634 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1635 unsigned int i; 1636 1637 for (i = 0; i < pcm->channels; i++) 1638 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0); 1639 return 0; 1640} 1641 1642static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream) 1643{ 1644 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1645 struct snd_pcm_runtime *runtime = substream->runtime; 1646 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1647 unsigned int i; 1648 1649 /* 1650 dev_dbg(emu->card->dev, "prepare: etram_pages = 0x%p, dma_area = 0x%x, " 1651 "buffer_size = 0x%x (0x%x)\n", 1652 emu->fx8010.etram_pages, runtime->dma_area, 1653 runtime->buffer_size, runtime->buffer_size << 2); 1654 */ 1655 memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec)); 1656 pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */ 1657 pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream); 1658 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); 1659 pcm->tram_shift = 0; 1660 snd_emu10k1_ptr_write_multiple(emu, 0, 1661 emu->gpr_base + pcm->gpr_running, 0, /* reset */ 1662 emu->gpr_base + pcm->gpr_trigger, 0, /* reset */ 1663 emu->gpr_base + pcm->gpr_size, runtime->buffer_size, 1664 emu->gpr_base + pcm->gpr_ptr, 0, /* reset ptr number */ 1665 emu->gpr_base + pcm->gpr_count, runtime->period_size, 1666 emu->gpr_base + pcm->gpr_tmpcount, runtime->period_size, 1667 REGLIST_END); 1668 for (i = 0; i < pcm->channels; i++) 1669 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels)); 1670 return 0; 1671} 1672 1673static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd) 1674{ 1675 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1676 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1677 int result; 1678 1679 guard(spinlock)(&emu->reg_lock); 1680 switch (cmd) { 1681 case SNDRV_PCM_TRIGGER_START: 1682 /* follow thru */ 1683 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 1684 case SNDRV_PCM_TRIGGER_RESUME: 1685#ifdef EMU10K1_SET_AC3_IEC958 1686 { 1687 int i; 1688 for (i = 0; i < 3; i++) { 1689 unsigned int bits; 1690 bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 1691 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS | 1692 0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA; 1693 snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits); 1694 } 1695 } 1696#endif 1697 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq); 1698 if (result < 0) 1699 return result; 1700 snd_emu10k1_fx8010_playback_transfer(substream); /* roll the ball */ 1701 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1); 1702 break; 1703 case SNDRV_PCM_TRIGGER_STOP: 1704 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 1705 case SNDRV_PCM_TRIGGER_SUSPEND: 1706 snd_emu10k1_fx8010_unregister_irq_handler(emu, &pcm->irq); 1707 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0); 1708 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); 1709 pcm->tram_shift = 0; 1710 break; 1711 default: 1712 return -EINVAL; 1713 } 1714 return 0; 1715} 1716 1717static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream) 1718{ 1719 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1720 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1721 size_t ptr; /* byte pointer */ 1722 1723 if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0)) 1724 return 0; 1725 ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2; 1726 return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr); 1727} 1728 1729static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback = 1730{ 1731 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1732 SNDRV_PCM_INFO_RESUME | 1733 /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE | 1734 SNDRV_PCM_INFO_SYNC_APPLPTR), 1735 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 1736 .rates = SNDRV_PCM_RATE_48000, 1737 .rate_min = 48000, 1738 .rate_max = 48000, 1739 .channels_min = 1, 1740 .channels_max = 1, 1741 .buffer_bytes_max = (128*1024), 1742 .period_bytes_min = 1024, 1743 .period_bytes_max = (128*1024), 1744 .periods_min = 2, 1745 .periods_max = 1024, 1746 .fifo_size = 0, 1747}; 1748 1749static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream) 1750{ 1751 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1752 struct snd_pcm_runtime *runtime = substream->runtime; 1753 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1754 1755 runtime->hw = snd_emu10k1_fx8010_playback; 1756 runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels; 1757 runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2; 1758 guard(spinlock_irq)(&emu->reg_lock); 1759 if (pcm->valid == 0) 1760 return -ENODEV; 1761 pcm->opened = 1; 1762 return 0; 1763} 1764 1765static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream) 1766{ 1767 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1768 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1769 1770 guard(spinlock_irq)(&emu->reg_lock); 1771 pcm->opened = 0; 1772 return 0; 1773} 1774 1775static const struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = { 1776 .open = snd_emu10k1_fx8010_playback_open, 1777 .close = snd_emu10k1_fx8010_playback_close, 1778 .hw_free = snd_emu10k1_fx8010_playback_hw_free, 1779 .prepare = snd_emu10k1_fx8010_playback_prepare, 1780 .trigger = snd_emu10k1_fx8010_playback_trigger, 1781 .pointer = snd_emu10k1_fx8010_playback_pointer, 1782 .ack = snd_emu10k1_fx8010_playback_transfer, 1783}; 1784 1785int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device) 1786{ 1787 struct snd_pcm *pcm; 1788 struct snd_kcontrol *kctl; 1789 int err; 1790 1791 err = snd_pcm_new(emu->card, "emu10k1 efx", device, emu->audigy ? 0 : 8, 1, &pcm); 1792 if (err < 0) 1793 return err; 1794 1795 pcm->private_data = emu; 1796 1797 if (!emu->audigy) 1798 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops); 1799 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops); 1800 1801 pcm->info_flags = 0; 1802 if (emu->audigy) 1803 strscpy(pcm->name, "Multichannel Capture"); 1804 else 1805 strscpy(pcm->name, "Multichannel Capture/PT Playback"); 1806 emu->pcm_efx = pcm; 1807 1808 if (!emu->card_capabilities->emu_model) { 1809 // On Sound Blasters, the DSP code copies the EXTINs to FXBUS2. 1810 // The mask determines which of these and the EXTOUTs the multi- 1811 // channel capture actually records (the channel order is fixed). 1812 if (emu->audigy) { 1813 emu->efx_voices_mask[0] = 0; 1814 emu->efx_voices_mask[1] = 0xffff; 1815 } else { 1816 emu->efx_voices_mask[0] = 0xffff0000; 1817 emu->efx_voices_mask[1] = 0; 1818 } 1819 kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu); 1820 if (!kctl) 1821 return -ENOMEM; 1822 kctl->id.device = device; 1823 err = snd_ctl_add(emu->card, kctl); 1824 if (err < 0) 1825 return err; 1826 } else { 1827 // On E-MU cards, the DSP code copies the P16VINs/EMU32INs to 1828 // FXBUS2. These are already selected & routed by the FPGA, 1829 // so there is no need to apply additional masking. 1830 } 1831 1832 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &emu->pci->dev, 1833 64*1024, 64*1024); 1834 1835 return 0; 1836}
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