1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 4 * Creative Labs, Inc. 5 * Routines for control of EMU10K1 chips / PCM routines 6 * Multichannel PCM support Copyright (c) Lee Revell <rlrevell@joe-job.com> 7 * 8 * BUGS: 9 * -- 10 * 11 * TODO: 12 * -- 13 */ 14 15 #include <linux/pci.h> 16 #include <linux/delay.h> 17 #include <linux/slab.h> 18 #include <linux/time.h> 19 #include <linux/init.h> 20 #include <sound/core.h> 21 #include <sound/emu10k1.h> 22 23 static void snd_emu10k1_pcm_interrupt(struct snd_emu10k1 *emu, 24 struct snd_emu10k1_voice *voice) 25 { 26 struct snd_emu10k1_pcm *epcm; 27 28 epcm = voice->epcm; 29 if (!epcm) 30 return; 31 if (epcm->substream == NULL) 32 return; 33 #if 0 34 dev_dbg(emu->card->dev, 35 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n", 36 epcm->substream->runtime->hw->pointer(emu, epcm->substream), 37 snd_pcm_lib_period_bytes(epcm->substream), 38 snd_pcm_lib_buffer_bytes(epcm->substream)); 39 #endif 40 snd_pcm_period_elapsed(epcm->substream); 41 } 42 43 static void snd_emu10k1_pcm_ac97adc_interrupt(struct snd_emu10k1 *emu, 44 unsigned int status) 45 { 46 #if 0 47 if (status & IPR_ADCBUFHALFFULL) { 48 if (emu->pcm_capture_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 49 return; 50 } 51 #endif 52 snd_pcm_period_elapsed(emu->pcm_capture_substream); 53 } 54 55 static void snd_emu10k1_pcm_ac97mic_interrupt(struct snd_emu10k1 *emu, 56 unsigned int status) 57 { 58 #if 0 59 if (status & IPR_MICBUFHALFFULL) { 60 if (emu->pcm_capture_mic_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 61 return; 62 } 63 #endif 64 snd_pcm_period_elapsed(emu->pcm_capture_mic_substream); 65 } 66 67 static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu, 68 unsigned int status) 69 { 70 #if 0 71 if (status & IPR_EFXBUFHALFFULL) { 72 if (emu->pcm_capture_efx_substream->runtime->mode == SNDRV_PCM_MODE_FRAME) 73 return; 74 } 75 #endif 76 snd_pcm_period_elapsed(emu->pcm_capture_efx_substream); 77 } 78 79 static void snd_emu10k1_pcm_free_voices(struct snd_emu10k1_pcm *epcm) 80 { 81 for (unsigned i = 0; i < ARRAY_SIZE(epcm->voices); i++) { 82 if (epcm->voices[i]) { 83 snd_emu10k1_voice_free(epcm->emu, epcm->voices[i]); 84 epcm->voices[i] = NULL; 85 } 86 } 87 } 88 89 static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm *epcm, 90 int type, int count, int channels) 91 { 92 int err; 93 94 snd_emu10k1_pcm_free_voices(epcm); 95 96 err = snd_emu10k1_voice_alloc(epcm->emu, 97 type, count, channels, 98 epcm, &epcm->voices[0]); 99 if (err < 0) 100 return err; 101 102 if (epcm->extra == NULL) { 103 // The hardware supports only (half-)loop interrupts, so to support an 104 // arbitrary number of periods per buffer, we use an extra voice with a 105 // period-sized loop as the interrupt source. Additionally, the interrupt 106 // timing of the hardware is "suboptimal" and needs some compensation. 107 err = snd_emu10k1_voice_alloc(epcm->emu, 108 type + 1, 1, 1, 109 epcm, &epcm->extra); 110 if (err < 0) { 111 /* 112 dev_dbg(emu->card->dev, "pcm_channel_alloc: " 113 "failed extra: voices=%d, frame=%d\n", 114 voices, frame); 115 */ 116 snd_emu10k1_pcm_free_voices(epcm); 117 return err; 118 } 119 epcm->extra->interrupt = snd_emu10k1_pcm_interrupt; 120 } 121 122 return 0; 123 } 124 125 // Primes 2-7 and 2^n multiples thereof, up to 16. 126 static const unsigned int efx_capture_channels[] = { 127 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16 128 }; 129 130 static const struct snd_pcm_hw_constraint_list hw_constraints_efx_capture_channels = { 131 .count = ARRAY_SIZE(efx_capture_channels), 132 .list = efx_capture_channels, 133 .mask = 0 134 }; 135 136 static const unsigned int capture_buffer_sizes[31] = { 137 384, 448, 512, 640, 138 384*2, 448*2, 512*2, 640*2, 139 384*4, 448*4, 512*4, 640*4, 140 384*8, 448*8, 512*8, 640*8, 141 384*16, 448*16, 512*16, 640*16, 142 384*32, 448*32, 512*32, 640*32, 143 384*64, 448*64, 512*64, 640*64, 144 384*128,448*128,512*128 145 }; 146 147 static const struct snd_pcm_hw_constraint_list hw_constraints_capture_buffer_sizes = { 148 .count = 31, 149 .list = capture_buffer_sizes, 150 .mask = 0 151 }; 152 153 static const unsigned int capture_rates[8] = { 154 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000 155 }; 156 157 static const struct snd_pcm_hw_constraint_list hw_constraints_capture_rates = { 158 .count = 8, 159 .list = capture_rates, 160 .mask = 0 161 }; 162 163 static unsigned int snd_emu10k1_capture_rate_reg(unsigned int rate) 164 { 165 switch (rate) { 166 case 8000: return ADCCR_SAMPLERATE_8; 167 case 11025: return ADCCR_SAMPLERATE_11; 168 case 16000: return ADCCR_SAMPLERATE_16; 169 case 22050: return ADCCR_SAMPLERATE_22; 170 case 24000: return ADCCR_SAMPLERATE_24; 171 case 32000: return ADCCR_SAMPLERATE_32; 172 case 44100: return ADCCR_SAMPLERATE_44; 173 case 48000: return ADCCR_SAMPLERATE_48; 174 default: 175 snd_BUG(); 176 return ADCCR_SAMPLERATE_8; 177 } 178 } 179 180 static unsigned int snd_emu10k1_audigy_capture_rate_reg(unsigned int rate) 181 { 182 switch (rate) { 183 case 8000: return A_ADCCR_SAMPLERATE_8; 184 case 11025: return A_ADCCR_SAMPLERATE_11; 185 case 12000: return A_ADCCR_SAMPLERATE_12; /* really supported? */ 186 case 16000: return ADCCR_SAMPLERATE_16; 187 case 22050: return ADCCR_SAMPLERATE_22; 188 case 24000: return ADCCR_SAMPLERATE_24; 189 case 32000: return ADCCR_SAMPLERATE_32; 190 case 44100: return ADCCR_SAMPLERATE_44; 191 case 48000: return ADCCR_SAMPLERATE_48; 192 default: 193 snd_BUG(); 194 return A_ADCCR_SAMPLERATE_8; 195 } 196 } 197 198 static unsigned int emu10k1_calc_pitch_target(unsigned int rate) 199 { 200 unsigned int pitch_target; 201 202 pitch_target = (rate << 8) / 375; 203 pitch_target = (pitch_target >> 1) + (pitch_target & 1); 204 return pitch_target; 205 } 206 207 #define PITCH_48000 0x00004000 208 #define PITCH_96000 0x00008000 209 #define PITCH_85000 0x00007155 210 #define PITCH_80726 0x00006ba2 211 #define PITCH_67882 0x00005a82 212 #define PITCH_57081 0x00004c1c 213 214 static unsigned int emu10k1_select_interprom(unsigned int pitch_target) 215 { 216 if (pitch_target == PITCH_48000) 217 return CCCA_INTERPROM_0; 218 else if (pitch_target < PITCH_48000) 219 return CCCA_INTERPROM_1; 220 else if (pitch_target >= PITCH_96000) 221 return CCCA_INTERPROM_0; 222 else if (pitch_target >= PITCH_85000) 223 return CCCA_INTERPROM_6; 224 else if (pitch_target >= PITCH_80726) 225 return CCCA_INTERPROM_5; 226 else if (pitch_target >= PITCH_67882) 227 return CCCA_INTERPROM_4; 228 else if (pitch_target >= PITCH_57081) 229 return CCCA_INTERPROM_3; 230 else 231 return CCCA_INTERPROM_2; 232 } 233 234 static u16 emu10k1_send_target_from_amount(u8 amount) 235 { 236 static const u8 shifts[8] = { 4, 4, 5, 6, 7, 8, 9, 10 }; 237 static const u16 offsets[8] = { 0, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000 }; 238 u8 exp; 239 240 if (amount == 0xff) 241 return 0xffff; 242 exp = amount >> 5; 243 return ((amount & 0x1f) << shifts[exp]) + offsets[exp]; 244 } 245 246 static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, 247 struct snd_emu10k1_voice *evoice, 248 bool w_16, bool stereo, 249 unsigned int start_addr, 250 unsigned int end_addr, 251 const unsigned char *send_routing, 252 const unsigned char *send_amount) 253 { 254 struct snd_pcm_substream *substream = evoice->epcm->substream; 255 struct snd_pcm_runtime *runtime = substream->runtime; 256 unsigned int silent_page; 257 int voice; 258 unsigned int pitch_target; 259 260 voice = evoice->number; 261 262 if (emu->card_capabilities->emu_model) 263 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */ 264 else 265 pitch_target = emu10k1_calc_pitch_target(runtime->rate); 266 silent_page = ((unsigned int)emu->silent_page.addr << emu->address_mode) | 267 (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); 268 snd_emu10k1_ptr_write_multiple(emu, voice, 269 // Not really necessary for the slave, but it doesn't hurt 270 CPF, stereo ? CPF_STEREO_MASK : 0, 271 // Assumption that PT is already 0 so no harm overwriting 272 PTRX, (send_amount[0] << 8) | send_amount[1], 273 // Stereo slaves don't need to have the addresses set, but it doesn't hurt 274 DSL, end_addr | (send_amount[3] << 24), 275 PSST, start_addr | (send_amount[2] << 24), 276 CCCA, emu10k1_select_interprom(pitch_target) | 277 (w_16 ? 0 : CCCA_8BITSELECT), 278 // Clear filter delay memory 279 Z1, 0, 280 Z2, 0, 281 // Invalidate maps 282 MAPA, silent_page, 283 MAPB, silent_page, 284 // Disable filter (in conjunction with CCCA_RESONANCE == 0) 285 VTFT, VTFT_FILTERTARGET_MASK, 286 CVCF, CVCF_CURRENTFILTER_MASK, 287 REGLIST_END); 288 // Setup routing 289 if (emu->audigy) { 290 snd_emu10k1_ptr_write_multiple(emu, voice, 291 A_FXRT1, snd_emu10k1_compose_audigy_fxrt1(send_routing), 292 A_FXRT2, snd_emu10k1_compose_audigy_fxrt2(send_routing), 293 A_SENDAMOUNTS, snd_emu10k1_compose_audigy_sendamounts(send_amount), 294 REGLIST_END); 295 for (int i = 0; i < 4; i++) { 296 u32 aml = emu10k1_send_target_from_amount(send_amount[2 * i]); 297 u32 amh = emu10k1_send_target_from_amount(send_amount[2 * i + 1]); 298 snd_emu10k1_ptr_write(emu, A_CSBA + i, voice, (amh << 16) | aml); 299 } 300 } else { 301 snd_emu10k1_ptr_write(emu, FXRT, voice, 302 snd_emu10k1_compose_send_routing(send_routing)); 303 } 304 305 emu->voices[voice].dirty = 1; 306 } 307 308 static void snd_emu10k1_pcm_init_voices(struct snd_emu10k1 *emu, 309 struct snd_emu10k1_voice *evoice, 310 bool w_16, bool stereo, 311 unsigned int start_addr, 312 unsigned int end_addr, 313 struct snd_emu10k1_pcm_mixer *mix) 314 { 315 unsigned long flags; 316 317 spin_lock_irqsave(&emu->reg_lock, flags); 318 snd_emu10k1_pcm_init_voice(emu, evoice, w_16, stereo, 319 start_addr, end_addr, 320 &mix->send_routing[stereo][0], 321 &mix->send_volume[stereo][0]); 322 if (stereo) 323 snd_emu10k1_pcm_init_voice(emu, evoice + 1, w_16, true, 324 start_addr, end_addr, 325 &mix->send_routing[2][0], 326 &mix->send_volume[2][0]); 327 spin_unlock_irqrestore(&emu->reg_lock, flags); 328 } 329 330 static void snd_emu10k1_pcm_init_extra_voice(struct snd_emu10k1 *emu, 331 struct snd_emu10k1_voice *evoice, 332 bool w_16, 333 unsigned int start_addr, 334 unsigned int end_addr) 335 { 336 static const unsigned char send_routing[8] = { 0, 1, 2, 3, 4, 5, 6, 7 }; 337 static const unsigned char send_amount[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 338 339 snd_emu10k1_pcm_init_voice(emu, evoice, w_16, false, 340 start_addr, end_addr, 341 send_routing, send_amount); 342 } 343 344 static int snd_emu10k1_playback_hw_params(struct snd_pcm_substream *substream, 345 struct snd_pcm_hw_params *hw_params) 346 { 347 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 348 struct snd_pcm_runtime *runtime = substream->runtime; 349 struct snd_emu10k1_pcm *epcm = runtime->private_data; 350 size_t alloc_size; 351 int type, channels, count; 352 int err; 353 354 if (epcm->type == PLAYBACK_EMUVOICE) { 355 type = EMU10K1_PCM; 356 channels = 1; 357 count = params_channels(hw_params); 358 } else { 359 type = EMU10K1_EFX; 360 channels = params_channels(hw_params); 361 count = 1; 362 } 363 err = snd_emu10k1_pcm_channel_alloc(epcm, type, count, channels); 364 if (err < 0) 365 return err; 366 367 alloc_size = params_buffer_bytes(hw_params); 368 if (emu->iommu_workaround) 369 alloc_size += EMUPAGESIZE; 370 err = snd_pcm_lib_malloc_pages(substream, alloc_size); 371 if (err < 0) 372 return err; 373 if (emu->iommu_workaround && runtime->dma_bytes >= EMUPAGESIZE) 374 runtime->dma_bytes -= EMUPAGESIZE; 375 if (err > 0) { /* change */ 376 int mapped; 377 if (epcm->memblk != NULL) 378 snd_emu10k1_free_pages(emu, epcm->memblk); 379 epcm->memblk = snd_emu10k1_alloc_pages(emu, substream); 380 epcm->start_addr = 0; 381 if (! epcm->memblk) 382 return -ENOMEM; 383 mapped = ((struct snd_emu10k1_memblk *)epcm->memblk)->mapped_page; 384 if (mapped < 0) 385 return -ENOMEM; 386 epcm->start_addr = mapped << PAGE_SHIFT; 387 } 388 return 0; 389 } 390 391 static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream) 392 { 393 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 394 struct snd_pcm_runtime *runtime = substream->runtime; 395 struct snd_emu10k1_pcm *epcm; 396 397 if (runtime->private_data == NULL) 398 return 0; 399 epcm = runtime->private_data; 400 if (epcm->extra) { 401 snd_emu10k1_voice_free(epcm->emu, epcm->extra); 402 epcm->extra = NULL; 403 } 404 snd_emu10k1_pcm_free_voices(epcm); 405 if (epcm->memblk) { 406 snd_emu10k1_free_pages(emu, epcm->memblk); 407 epcm->memblk = NULL; 408 epcm->start_addr = 0; 409 } 410 snd_pcm_lib_free_pages(substream); 411 return 0; 412 } 413 414 static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream) 415 { 416 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 417 struct snd_pcm_runtime *runtime = substream->runtime; 418 struct snd_emu10k1_pcm *epcm = runtime->private_data; 419 bool w_16 = snd_pcm_format_width(runtime->format) == 16; 420 bool stereo = runtime->channels == 2; 421 unsigned int start_addr, end_addr; 422 423 start_addr = epcm->start_addr >> w_16; 424 end_addr = start_addr + runtime->period_size; 425 snd_emu10k1_pcm_init_extra_voice(emu, epcm->extra, w_16, 426 start_addr, end_addr); 427 start_addr >>= stereo; 428 epcm->ccca_start_addr = start_addr; 429 end_addr = start_addr + runtime->buffer_size; 430 snd_emu10k1_pcm_init_voices(emu, epcm->voices[0], w_16, stereo, 431 start_addr, end_addr, 432 &emu->pcm_mixer[substream->number]); 433 434 return 0; 435 } 436 437 static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) 438 { 439 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 440 struct snd_pcm_runtime *runtime = substream->runtime; 441 struct snd_emu10k1_pcm *epcm = runtime->private_data; 442 unsigned int start_addr; 443 unsigned int extra_size, channel_size; 444 unsigned int i; 445 446 start_addr = epcm->start_addr >> 1; // 16-bit voices 447 448 extra_size = runtime->period_size; 449 channel_size = runtime->buffer_size; 450 451 snd_emu10k1_pcm_init_extra_voice(emu, epcm->extra, true, 452 start_addr, start_addr + extra_size); 453 454 epcm->ccca_start_addr = start_addr; 455 for (i = 0; i < runtime->channels; i++) { 456 snd_emu10k1_pcm_init_voices(emu, epcm->voices[i], true, false, 457 start_addr, start_addr + channel_size, 458 &emu->efx_pcm_mixer[i]); 459 start_addr += channel_size; 460 } 461 462 return 0; 463 } 464 465 static const struct snd_pcm_hardware snd_emu10k1_efx_playback = 466 { 467 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED | 468 SNDRV_PCM_INFO_BLOCK_TRANSFER | 469 SNDRV_PCM_INFO_RESUME | 470 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), 471 .formats = SNDRV_PCM_FMTBIT_S16_LE, 472 .rates = SNDRV_PCM_RATE_48000, 473 .rate_min = 48000, 474 .rate_max = 48000, 475 .channels_min = 1, 476 .channels_max = NUM_EFX_PLAYBACK, 477 .buffer_bytes_max = (128*1024), 478 .period_bytes_max = (128*1024), 479 .periods_min = 2, 480 .periods_max = 1024, 481 .fifo_size = 0, 482 }; 483 484 static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream) 485 { 486 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 487 struct snd_pcm_runtime *runtime = substream->runtime; 488 struct snd_emu10k1_pcm *epcm = runtime->private_data; 489 int idx; 490 491 /* zeroing the buffer size will stop capture */ 492 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0); 493 switch (epcm->type) { 494 case CAPTURE_AC97ADC: 495 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0); 496 break; 497 case CAPTURE_EFX: 498 if (emu->card_capabilities->emu_model) { 499 // The upper 32 16-bit capture voices, two for each of the 16 32-bit channels. 500 // The lower voices are occupied by A_EXTOUT_*_CAP*. 501 epcm->capture_cr_val = 0; 502 epcm->capture_cr_val2 = 0xffffffff >> (32 - runtime->channels * 2); 503 } 504 if (emu->audigy) { 505 snd_emu10k1_ptr_write_multiple(emu, 0, 506 A_FXWC1, 0, 507 A_FXWC2, 0, 508 REGLIST_END); 509 } else 510 snd_emu10k1_ptr_write(emu, FXWC, 0, 0); 511 break; 512 default: 513 break; 514 } 515 snd_emu10k1_ptr_write(emu, epcm->capture_ba_reg, 0, runtime->dma_addr); 516 epcm->capture_bufsize = snd_pcm_lib_buffer_bytes(substream); 517 epcm->capture_bs_val = 0; 518 for (idx = 0; idx < 31; idx++) { 519 if (capture_buffer_sizes[idx] == epcm->capture_bufsize) { 520 epcm->capture_bs_val = idx + 1; 521 break; 522 } 523 } 524 if (epcm->capture_bs_val == 0) { 525 snd_BUG(); 526 epcm->capture_bs_val++; 527 } 528 if (epcm->type == CAPTURE_AC97ADC) { 529 epcm->capture_cr_val = emu->audigy ? A_ADCCR_LCHANENABLE : ADCCR_LCHANENABLE; 530 if (runtime->channels > 1) 531 epcm->capture_cr_val |= emu->audigy ? A_ADCCR_RCHANENABLE : ADCCR_RCHANENABLE; 532 epcm->capture_cr_val |= emu->audigy ? 533 snd_emu10k1_audigy_capture_rate_reg(runtime->rate) : 534 snd_emu10k1_capture_rate_reg(runtime->rate); 535 } 536 return 0; 537 } 538 539 static void snd_emu10k1_playback_fill_cache(struct snd_emu10k1 *emu, 540 unsigned voice, 541 u32 sample, bool stereo) 542 { 543 u32 ccr; 544 545 // We assume that the cache is resting at this point (i.e., 546 // CCR_CACHEINVALIDSIZE is very small). 547 548 // Clear leading frames. For simplicitly, this does too much, 549 // except for 16-bit stereo. And the interpolator will actually 550 // access them at all only when we're pitch-shifting. 551 for (int i = 0; i < 3; i++) 552 snd_emu10k1_ptr_write(emu, CD0 + i, voice, sample); 553 554 // Fill cache 555 ccr = (64 - 3) << REG_SHIFT(CCR_CACHEINVALIDSIZE); 556 if (stereo) { 557 // The engine goes haywire if CCR_READADDRESS is out of sync 558 snd_emu10k1_ptr_write(emu, CCR, voice + 1, ccr); 559 } 560 snd_emu10k1_ptr_write(emu, CCR, voice, ccr); 561 } 562 563 static void snd_emu10k1_playback_prepare_voices(struct snd_emu10k1 *emu, 564 struct snd_emu10k1_pcm *epcm, 565 bool w_16, bool stereo, 566 int channels) 567 { 568 struct snd_pcm_substream *substream = epcm->substream; 569 struct snd_pcm_runtime *runtime = substream->runtime; 570 unsigned eloop_start = epcm->start_addr >> w_16; 571 unsigned loop_start = eloop_start >> stereo; 572 unsigned eloop_size = runtime->period_size; 573 unsigned loop_size = runtime->buffer_size; 574 u32 sample = w_16 ? 0 : 0x80808080; 575 576 // To make the playback actually start at the 1st frame, 577 // we need to compensate for two circumstances: 578 // - The actual position is delayed by the cache size (64 frames) 579 // - The interpolator is centered around the 4th frame 580 loop_start += (epcm->resume_pos + 64 - 3) % loop_size; 581 for (int i = 0; i < channels; i++) { 582 unsigned voice = epcm->voices[i]->number; 583 snd_emu10k1_ptr_write(emu, CCCA_CURRADDR, voice, loop_start); 584 loop_start += loop_size; 585 snd_emu10k1_playback_fill_cache(emu, voice, sample, stereo); 586 } 587 588 // The interrupt is triggered when CCCA_CURRADDR (CA) wraps around, 589 // which is ahead of the actual playback position, so the interrupt 590 // source needs to be delayed. 591 // 592 // In principle, this wouldn't need to be the cache's entire size - in 593 // practice, CCR_CACHEINVALIDSIZE (CIS) > `fetch threshold` has never 594 // been observed, and assuming 40 _bytes_ should be safe. 595 // 596 // The cache fills are somewhat random, which makes it impossible to 597 // align them with the interrupts. This makes a non-delayed interrupt 598 // source not practical, as the interrupt handler would have to wait 599 // for (CA - CIS) >= period_boundary for every channel in the stream. 600 // 601 // This is why all other (open) drivers for these chips use timer-based 602 // interrupts. 603 // 604 eloop_start += (epcm->resume_pos + eloop_size - 3) % eloop_size; 605 snd_emu10k1_ptr_write(emu, CCCA_CURRADDR, epcm->extra->number, eloop_start); 606 607 // It takes a moment until the cache fills complete, 608 // but the unmuting takes long enough for that. 609 } 610 611 static void snd_emu10k1_playback_commit_volume(struct snd_emu10k1 *emu, 612 struct snd_emu10k1_voice *evoice, 613 unsigned int vattn) 614 { 615 snd_emu10k1_ptr_write_multiple(emu, evoice->number, 616 VTFT, vattn | VTFT_FILTERTARGET_MASK, 617 CVCF, vattn | CVCF_CURRENTFILTER_MASK, 618 REGLIST_END); 619 } 620 621 static void snd_emu10k1_playback_unmute_voice(struct snd_emu10k1 *emu, 622 struct snd_emu10k1_voice *evoice, 623 bool stereo, bool master, 624 struct snd_emu10k1_pcm_mixer *mix) 625 { 626 unsigned int vattn; 627 unsigned int tmp; 628 629 tmp = stereo ? (master ? 1 : 2) : 0; 630 vattn = mix->attn[tmp] << 16; 631 snd_emu10k1_playback_commit_volume(emu, evoice, vattn); 632 } 633 634 static void snd_emu10k1_playback_unmute_voices(struct snd_emu10k1 *emu, 635 struct snd_emu10k1_voice *evoice, 636 bool stereo, 637 struct snd_emu10k1_pcm_mixer *mix) 638 { 639 snd_emu10k1_playback_unmute_voice(emu, evoice, stereo, true, mix); 640 if (stereo) 641 snd_emu10k1_playback_unmute_voice(emu, evoice + 1, true, false, mix); 642 } 643 644 static void snd_emu10k1_playback_mute_voice(struct snd_emu10k1 *emu, 645 struct snd_emu10k1_voice *evoice) 646 { 647 snd_emu10k1_playback_commit_volume(emu, evoice, 0); 648 } 649 650 static void snd_emu10k1_playback_mute_voices(struct snd_emu10k1 *emu, 651 struct snd_emu10k1_voice *evoice, 652 bool stereo) 653 { 654 snd_emu10k1_playback_mute_voice(emu, evoice); 655 if (stereo) 656 snd_emu10k1_playback_mute_voice(emu, evoice + 1); 657 } 658 659 static void snd_emu10k1_playback_commit_pitch(struct snd_emu10k1 *emu, 660 u32 voice, u32 pitch_target) 661 { 662 u32 ptrx = snd_emu10k1_ptr_read(emu, PTRX, voice); 663 u32 cpf = snd_emu10k1_ptr_read(emu, CPF, voice); 664 snd_emu10k1_ptr_write_multiple(emu, voice, 665 PTRX, (ptrx & ~PTRX_PITCHTARGET_MASK) | pitch_target, 666 CPF, (cpf & ~(CPF_CURRENTPITCH_MASK | CPF_FRACADDRESS_MASK)) | pitch_target, 667 REGLIST_END); 668 } 669 670 static void snd_emu10k1_playback_trigger_voice(struct snd_emu10k1 *emu, 671 struct snd_emu10k1_voice *evoice) 672 { 673 struct snd_pcm_substream *substream; 674 struct snd_pcm_runtime *runtime; 675 unsigned int voice, pitch_target; 676 677 substream = evoice->epcm->substream; 678 runtime = substream->runtime; 679 voice = evoice->number; 680 681 if (emu->card_capabilities->emu_model) 682 pitch_target = PITCH_48000; /* Disable interpolators on emu1010 card */ 683 else 684 pitch_target = emu10k1_calc_pitch_target(runtime->rate); 685 snd_emu10k1_playback_commit_pitch(emu, voice, pitch_target << 16); 686 } 687 688 static void snd_emu10k1_playback_stop_voice(struct snd_emu10k1 *emu, 689 struct snd_emu10k1_voice *evoice) 690 { 691 unsigned int voice; 692 693 voice = evoice->number; 694 snd_emu10k1_playback_commit_pitch(emu, voice, 0); 695 } 696 697 static void snd_emu10k1_playback_set_running(struct snd_emu10k1 *emu, 698 struct snd_emu10k1_pcm *epcm) 699 { 700 epcm->running = 1; 701 snd_emu10k1_voice_intr_enable(emu, epcm->extra->number); 702 } 703 704 static void snd_emu10k1_playback_set_stopped(struct snd_emu10k1 *emu, 705 struct snd_emu10k1_pcm *epcm) 706 { 707 snd_emu10k1_voice_intr_disable(emu, epcm->extra->number); 708 epcm->running = 0; 709 } 710 711 static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream, 712 int cmd) 713 { 714 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 715 struct snd_pcm_runtime *runtime = substream->runtime; 716 struct snd_emu10k1_pcm *epcm = runtime->private_data; 717 struct snd_emu10k1_pcm_mixer *mix; 718 bool w_16 = snd_pcm_format_width(runtime->format) == 16; 719 bool stereo = runtime->channels == 2; 720 int result = 0; 721 722 /* 723 dev_dbg(emu->card->dev, 724 "trigger - emu10k1 = 0x%x, cmd = %i, pointer = %i\n", 725 (int)emu, cmd, substream->ops->pointer(substream)) 726 */ 727 spin_lock(&emu->reg_lock); 728 switch (cmd) { 729 case SNDRV_PCM_TRIGGER_START: 730 snd_emu10k1_playback_prepare_voices(emu, epcm, w_16, stereo, 1); 731 fallthrough; 732 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 733 case SNDRV_PCM_TRIGGER_RESUME: 734 mix = &emu->pcm_mixer[substream->number]; 735 snd_emu10k1_playback_unmute_voices(emu, epcm->voices[0], stereo, mix); 736 snd_emu10k1_playback_set_running(emu, epcm); 737 snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0]); 738 snd_emu10k1_playback_trigger_voice(emu, epcm->extra); 739 break; 740 case SNDRV_PCM_TRIGGER_STOP: 741 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 742 case SNDRV_PCM_TRIGGER_SUSPEND: 743 snd_emu10k1_playback_stop_voice(emu, epcm->voices[0]); 744 snd_emu10k1_playback_stop_voice(emu, epcm->extra); 745 snd_emu10k1_playback_set_stopped(emu, epcm); 746 snd_emu10k1_playback_mute_voices(emu, epcm->voices[0], stereo); 747 break; 748 default: 749 result = -EINVAL; 750 break; 751 } 752 spin_unlock(&emu->reg_lock); 753 return result; 754 } 755 756 static int snd_emu10k1_capture_trigger(struct snd_pcm_substream *substream, 757 int cmd) 758 { 759 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 760 struct snd_pcm_runtime *runtime = substream->runtime; 761 struct snd_emu10k1_pcm *epcm = runtime->private_data; 762 int result = 0; 763 764 spin_lock(&emu->reg_lock); 765 switch (cmd) { 766 case SNDRV_PCM_TRIGGER_START: 767 case SNDRV_PCM_TRIGGER_RESUME: 768 /* hmm this should cause full and half full interrupt to be raised? */ 769 outl(epcm->capture_ipr, emu->port + IPR); 770 snd_emu10k1_intr_enable(emu, epcm->capture_inte); 771 /* 772 dev_dbg(emu->card->dev, "adccr = 0x%x, adcbs = 0x%x\n", 773 epcm->adccr, epcm->adcbs); 774 */ 775 switch (epcm->type) { 776 case CAPTURE_AC97ADC: 777 snd_emu10k1_ptr_write(emu, ADCCR, 0, epcm->capture_cr_val); 778 break; 779 case CAPTURE_EFX: 780 if (emu->audigy) { 781 snd_emu10k1_ptr_write_multiple(emu, 0, 782 A_FXWC1, epcm->capture_cr_val, 783 A_FXWC2, epcm->capture_cr_val2, 784 REGLIST_END); 785 dev_dbg(emu->card->dev, 786 "cr_val=0x%x, cr_val2=0x%x\n", 787 epcm->capture_cr_val, 788 epcm->capture_cr_val2); 789 } else 790 snd_emu10k1_ptr_write(emu, FXWC, 0, epcm->capture_cr_val); 791 break; 792 default: 793 break; 794 } 795 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, epcm->capture_bs_val); 796 epcm->running = 1; 797 epcm->first_ptr = 1; 798 break; 799 case SNDRV_PCM_TRIGGER_STOP: 800 case SNDRV_PCM_TRIGGER_SUSPEND: 801 epcm->running = 0; 802 snd_emu10k1_intr_disable(emu, epcm->capture_inte); 803 outl(epcm->capture_ipr, emu->port + IPR); 804 snd_emu10k1_ptr_write(emu, epcm->capture_bs_reg, 0, 0); 805 switch (epcm->type) { 806 case CAPTURE_AC97ADC: 807 snd_emu10k1_ptr_write(emu, ADCCR, 0, 0); 808 break; 809 case CAPTURE_EFX: 810 if (emu->audigy) { 811 snd_emu10k1_ptr_write_multiple(emu, 0, 812 A_FXWC1, 0, 813 A_FXWC2, 0, 814 REGLIST_END); 815 } else 816 snd_emu10k1_ptr_write(emu, FXWC, 0, 0); 817 break; 818 default: 819 break; 820 } 821 break; 822 default: 823 result = -EINVAL; 824 } 825 spin_unlock(&emu->reg_lock); 826 return result; 827 } 828 829 static snd_pcm_uframes_t snd_emu10k1_playback_pointer(struct snd_pcm_substream *substream) 830 { 831 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 832 struct snd_pcm_runtime *runtime = substream->runtime; 833 struct snd_emu10k1_pcm *epcm = runtime->private_data; 834 int ptr; 835 836 if (!epcm->running) 837 return 0; 838 839 ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff; 840 ptr -= epcm->ccca_start_addr; 841 842 // This is the size of the whole cache minus the interpolator read-ahead, 843 // which leads us to the actual playback position. 844 // 845 // The cache is constantly kept mostly filled, so in principle we could 846 // return a more advanced position representing how far the hardware has 847 // already read the buffer, and set runtime->delay accordingly. However, 848 // this would be slightly different for every channel (and remarkably slow 849 // to obtain), so only a fixed worst-case value would be practical. 850 // 851 ptr -= 64 - 3; 852 if (ptr < 0) 853 ptr += runtime->buffer_size; 854 855 /* 856 dev_dbg(emu->card->dev, 857 "ptr = 0x%lx, buffer_size = 0x%lx, period_size = 0x%lx\n", 858 (long)ptr, (long)runtime->buffer_size, 859 (long)runtime->period_size); 860 */ 861 return ptr; 862 } 863 864 static u64 snd_emu10k1_efx_playback_voice_mask(struct snd_emu10k1_pcm *epcm, 865 int channels) 866 { 867 u64 mask = 0; 868 869 for (int i = 0; i < channels; i++) { 870 int voice = epcm->voices[i]->number; 871 mask |= 1ULL << voice; 872 } 873 return mask; 874 } 875 876 static void snd_emu10k1_efx_playback_freeze_voices(struct snd_emu10k1 *emu, 877 struct snd_emu10k1_pcm *epcm, 878 int channels) 879 { 880 for (int i = 0; i < channels; i++) { 881 int voice = epcm->voices[i]->number; 882 snd_emu10k1_ptr_write(emu, CPF_STOP, voice, 1); 883 snd_emu10k1_playback_commit_pitch(emu, voice, PITCH_48000 << 16); 884 } 885 } 886 887 static void snd_emu10k1_efx_playback_unmute_voices(struct snd_emu10k1 *emu, 888 struct snd_emu10k1_pcm *epcm, 889 int channels) 890 { 891 for (int i = 0; i < channels; i++) 892 snd_emu10k1_playback_unmute_voice(emu, epcm->voices[i], false, true, 893 &emu->efx_pcm_mixer[i]); 894 } 895 896 static void snd_emu10k1_efx_playback_stop_voices(struct snd_emu10k1 *emu, 897 struct snd_emu10k1_pcm *epcm, 898 int channels) 899 { 900 for (int i = 0; i < channels; i++) 901 snd_emu10k1_playback_stop_voice(emu, epcm->voices[i]); 902 snd_emu10k1_playback_set_stopped(emu, epcm); 903 904 for (int i = 0; i < channels; i++) 905 snd_emu10k1_playback_mute_voice(emu, epcm->voices[i]); 906 } 907 908 static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, 909 int cmd) 910 { 911 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 912 struct snd_pcm_runtime *runtime = substream->runtime; 913 struct snd_emu10k1_pcm *epcm = runtime->private_data; 914 u64 mask; 915 int result = 0; 916 917 spin_lock(&emu->reg_lock); 918 switch (cmd) { 919 case SNDRV_PCM_TRIGGER_START: 920 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 921 case SNDRV_PCM_TRIGGER_RESUME: 922 mask = snd_emu10k1_efx_playback_voice_mask( 923 epcm, runtime->channels); 924 for (int i = 0; i < 10; i++) { 925 // Note that the freeze is not interruptible, so we make no 926 // effort to reset the bits outside the error handling here. 927 snd_emu10k1_voice_set_loop_stop_multiple(emu, mask); 928 snd_emu10k1_efx_playback_freeze_voices( 929 emu, epcm, runtime->channels); 930 snd_emu10k1_playback_prepare_voices( 931 emu, epcm, true, false, runtime->channels); 932 933 // It might seem to make more sense to unmute the voices only after 934 // they have been started, to potentially avoid torturing the speakers 935 // if something goes wrong. However, we cannot unmute atomically, 936 // which means that we'd get some mild artifacts in the regular case. 937 snd_emu10k1_efx_playback_unmute_voices(emu, epcm, runtime->channels); 938 939 snd_emu10k1_playback_set_running(emu, epcm); 940 result = snd_emu10k1_voice_clear_loop_stop_multiple_atomic(emu, mask); 941 if (result == 0) { 942 // The extra voice is allowed to lag a bit 943 snd_emu10k1_playback_trigger_voice(emu, epcm->extra); 944 goto leave; 945 } 946 947 snd_emu10k1_efx_playback_stop_voices( 948 emu, epcm, runtime->channels); 949 950 if (result != -EAGAIN) 951 break; 952 // The sync start can legitimately fail due to NMIs, etc. 953 } 954 snd_emu10k1_voice_clear_loop_stop_multiple(emu, mask); 955 break; 956 case SNDRV_PCM_TRIGGER_SUSPEND: 957 case SNDRV_PCM_TRIGGER_STOP: 958 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 959 snd_emu10k1_playback_stop_voice(emu, epcm->extra); 960 snd_emu10k1_efx_playback_stop_voices( 961 emu, epcm, runtime->channels); 962 963 epcm->resume_pos = snd_emu10k1_playback_pointer(substream); 964 break; 965 default: 966 result = -EINVAL; 967 break; 968 } 969 leave: 970 spin_unlock(&emu->reg_lock); 971 return result; 972 } 973 974 975 static 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 */ 995 996 static 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 1019 static 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_KNOT, 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 1039 static 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_44100 | SNDRV_PCM_RATE_48000 | 1047 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | 1048 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, 1049 .rate_min = 44100, 1050 .rate_max = 192000, 1051 .channels_min = 1, 1052 .channels_max = 16, 1053 .buffer_bytes_max = (64*1024), 1054 .period_bytes_min = 384, 1055 .period_bytes_max = (64*1024), 1056 .periods_min = 2, 1057 .periods_max = 2, 1058 .fifo_size = 0, 1059 }; 1060 1061 /* 1062 * 1063 */ 1064 1065 static void snd_emu10k1_pcm_mixer_notify1(struct snd_emu10k1 *emu, struct snd_kcontrol *kctl, int idx, int activate) 1066 { 1067 struct snd_ctl_elem_id id; 1068 1069 if (! kctl) 1070 return; 1071 if (activate) 1072 kctl->vd[idx].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; 1073 else 1074 kctl->vd[idx].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; 1075 snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE | 1076 SNDRV_CTL_EVENT_MASK_INFO, 1077 snd_ctl_build_ioff(&id, kctl, idx)); 1078 } 1079 1080 static void snd_emu10k1_pcm_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) 1081 { 1082 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_routing, idx, activate); 1083 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_send_volume, idx, activate); 1084 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_attn, idx, activate); 1085 } 1086 1087 static void snd_emu10k1_pcm_efx_mixer_notify(struct snd_emu10k1 *emu, int idx, int activate) 1088 { 1089 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_routing, idx, activate); 1090 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_send_volume, idx, activate); 1091 snd_emu10k1_pcm_mixer_notify1(emu, emu->ctl_efx_attn, idx, activate); 1092 } 1093 1094 static void snd_emu10k1_pcm_free_substream(struct snd_pcm_runtime *runtime) 1095 { 1096 kfree(runtime->private_data); 1097 } 1098 1099 static int snd_emu10k1_efx_playback_close(struct snd_pcm_substream *substream) 1100 { 1101 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1102 struct snd_emu10k1_pcm_mixer *mix; 1103 int i; 1104 1105 for (i = 0; i < NUM_EFX_PLAYBACK; i++) { 1106 mix = &emu->efx_pcm_mixer[i]; 1107 mix->epcm = NULL; 1108 snd_emu10k1_pcm_efx_mixer_notify(emu, i, 0); 1109 } 1110 return 0; 1111 } 1112 1113 static int snd_emu10k1_playback_set_constraints(struct snd_pcm_runtime *runtime) 1114 { 1115 int err; 1116 1117 // The buffer size must be a multiple of the period size, to avoid a 1118 // mismatch between the extra voice and the regular voices. 1119 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 1120 if (err < 0) 1121 return err; 1122 // The hardware is typically the cache's size of 64 frames ahead. 1123 // Leave enough time for actually filling up the buffer. 1124 err = snd_pcm_hw_constraint_minmax( 1125 runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 128, UINT_MAX); 1126 return err; 1127 } 1128 1129 static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream) 1130 { 1131 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1132 struct snd_emu10k1_pcm *epcm; 1133 struct snd_emu10k1_pcm_mixer *mix; 1134 struct snd_pcm_runtime *runtime = substream->runtime; 1135 int i, j, err; 1136 1137 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 1138 if (epcm == NULL) 1139 return -ENOMEM; 1140 epcm->emu = emu; 1141 epcm->type = PLAYBACK_EFX; 1142 epcm->substream = substream; 1143 1144 runtime->private_data = epcm; 1145 runtime->private_free = snd_emu10k1_pcm_free_substream; 1146 runtime->hw = snd_emu10k1_efx_playback; 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 1166 static 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 && emu->emu1010.internal_clock == 0) 1189 sample_rate = 44100; 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 1209 static 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 1219 static 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_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 1240 &hw_constraints_capture_buffer_sizes); 1241 emu->capture_interrupt = snd_emu10k1_pcm_ac97adc_interrupt; 1242 emu->pcm_capture_substream = substream; 1243 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_capture_rates); 1244 return 0; 1245 } 1246 1247 static 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 1256 static 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 1285 static 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 1294 static 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 runtime->hw.rates = SNDRV_PCM_RATE_48000; 1317 runtime->hw.rate_min = runtime->hw.rate_max = 48000; 1318 if (emu->card_capabilities->emu_model) { 1319 /* TODO 1320 * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | 1321 * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | 1322 * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000 1323 * rate_min = 44100, 1324 * rate_max = 192000, 1325 * Need to add mixer control to fix sample rate 1326 * 1327 * There are 32 mono channels of 16bits each. 1328 * 24bit Audio uses 2x channels over 16bit, 1329 * 96kHz uses 2x channels over 48kHz, 1330 * 192kHz uses 4x channels over 48kHz. 1331 * So, for 48kHz 24bit, one has 16 channels, 1332 * for 96kHz 24bit, one has 8 channels, 1333 * for 192kHz 24bit, one has 4 channels. 1334 * 1010rev2 and 1616(m) cards have double that, 1335 * but we don't exceed 16 channels anyway. 1336 */ 1337 #if 1 1338 switch (emu->emu1010.internal_clock) { 1339 case 0: 1340 /* For 44.1kHz */ 1341 runtime->hw.rates = SNDRV_PCM_RATE_44100; 1342 runtime->hw.rate_min = runtime->hw.rate_max = 44100; 1343 break; 1344 case 1: 1345 /* For 48kHz */ 1346 runtime->hw.rates = SNDRV_PCM_RATE_48000; 1347 runtime->hw.rate_min = runtime->hw.rate_max = 48000; 1348 break; 1349 } 1350 #endif 1351 #if 0 1352 /* For 96kHz */ 1353 runtime->hw.rates = SNDRV_PCM_RATE_96000; 1354 runtime->hw.rate_min = runtime->hw.rate_max = 96000; 1355 runtime->hw.channels_min = runtime->hw.channels_max = 4; 1356 #endif 1357 #if 0 1358 /* For 192kHz */ 1359 runtime->hw.rates = SNDRV_PCM_RATE_192000; 1360 runtime->hw.rate_min = runtime->hw.rate_max = 192000; 1361 runtime->hw.channels_min = runtime->hw.channels_max = 2; 1362 #endif 1363 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE; 1364 } else { 1365 spin_lock_irq(&emu->reg_lock); 1366 runtime->hw.channels_min = runtime->hw.channels_max = 0; 1367 for (idx = 0; idx < nefx; idx++) { 1368 if (emu->efx_voices_mask[idx/32] & (1 << (idx%32))) { 1369 runtime->hw.channels_min++; 1370 runtime->hw.channels_max++; 1371 } 1372 } 1373 epcm->capture_cr_val = emu->efx_voices_mask[0]; 1374 epcm->capture_cr_val2 = emu->efx_voices_mask[1]; 1375 spin_unlock_irq(&emu->reg_lock); 1376 } 1377 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 1378 &hw_constraints_efx_capture_channels); 1379 if (err < 0) { 1380 kfree(epcm); 1381 return err; 1382 } 1383 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 1384 &hw_constraints_capture_buffer_sizes); 1385 emu->capture_efx_interrupt = snd_emu10k1_pcm_efx_interrupt; 1386 emu->pcm_capture_efx_substream = substream; 1387 return 0; 1388 } 1389 1390 static int snd_emu10k1_capture_efx_close(struct snd_pcm_substream *substream) 1391 { 1392 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1393 1394 emu->capture_efx_interrupt = NULL; 1395 emu->pcm_capture_efx_substream = NULL; 1396 return 0; 1397 } 1398 1399 static const struct snd_pcm_ops snd_emu10k1_playback_ops = { 1400 .open = snd_emu10k1_playback_open, 1401 .close = snd_emu10k1_playback_close, 1402 .hw_params = snd_emu10k1_playback_hw_params, 1403 .hw_free = snd_emu10k1_playback_hw_free, 1404 .prepare = snd_emu10k1_playback_prepare, 1405 .trigger = snd_emu10k1_playback_trigger, 1406 .pointer = snd_emu10k1_playback_pointer, 1407 }; 1408 1409 static const struct snd_pcm_ops snd_emu10k1_capture_ops = { 1410 .open = snd_emu10k1_capture_open, 1411 .close = snd_emu10k1_capture_close, 1412 .prepare = snd_emu10k1_capture_prepare, 1413 .trigger = snd_emu10k1_capture_trigger, 1414 .pointer = snd_emu10k1_capture_pointer, 1415 }; 1416 1417 /* EFX playback */ 1418 static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = { 1419 .open = snd_emu10k1_efx_playback_open, 1420 .close = snd_emu10k1_efx_playback_close, 1421 .hw_params = snd_emu10k1_playback_hw_params, 1422 .hw_free = snd_emu10k1_playback_hw_free, 1423 .prepare = snd_emu10k1_efx_playback_prepare, 1424 .trigger = snd_emu10k1_efx_playback_trigger, 1425 .pointer = snd_emu10k1_playback_pointer, 1426 }; 1427 1428 int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device) 1429 { 1430 struct snd_pcm *pcm; 1431 struct snd_pcm_substream *substream; 1432 int err; 1433 1434 err = snd_pcm_new(emu->card, "emu10k1", device, 32, 1, &pcm); 1435 if (err < 0) 1436 return err; 1437 1438 pcm->private_data = emu; 1439 1440 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_playback_ops); 1441 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_ops); 1442 1443 pcm->info_flags = 0; 1444 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 1445 strcpy(pcm->name, "ADC Capture/Standard PCM Playback"); 1446 emu->pcm = pcm; 1447 1448 /* playback substream can't use managed buffers due to alignment */ 1449 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) 1450 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, 1451 &emu->pci->dev, 1452 64*1024, 64*1024); 1453 1454 for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; substream; substream = substream->next) 1455 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV, 1456 &emu->pci->dev, 64*1024, 64*1024); 1457 1458 return 0; 1459 } 1460 1461 int snd_emu10k1_pcm_multi(struct snd_emu10k1 *emu, int device) 1462 { 1463 struct snd_pcm *pcm; 1464 struct snd_pcm_substream *substream; 1465 int err; 1466 1467 err = snd_pcm_new(emu->card, "emu10k1", device, 1, 0, &pcm); 1468 if (err < 0) 1469 return err; 1470 1471 pcm->private_data = emu; 1472 1473 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_efx_playback_ops); 1474 1475 pcm->info_flags = 0; 1476 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 1477 strcpy(pcm->name, "Multichannel Playback"); 1478 emu->pcm_multi = pcm; 1479 1480 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) 1481 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG, 1482 &emu->pci->dev, 1483 64*1024, 64*1024); 1484 1485 return 0; 1486 } 1487 1488 1489 static const struct snd_pcm_ops snd_emu10k1_capture_mic_ops = { 1490 .open = snd_emu10k1_capture_mic_open, 1491 .close = snd_emu10k1_capture_mic_close, 1492 .prepare = snd_emu10k1_capture_prepare, 1493 .trigger = snd_emu10k1_capture_trigger, 1494 .pointer = snd_emu10k1_capture_pointer, 1495 }; 1496 1497 int snd_emu10k1_pcm_mic(struct snd_emu10k1 *emu, int device) 1498 { 1499 struct snd_pcm *pcm; 1500 int err; 1501 1502 err = snd_pcm_new(emu->card, "emu10k1 mic", device, 0, 1, &pcm); 1503 if (err < 0) 1504 return err; 1505 1506 pcm->private_data = emu; 1507 1508 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_mic_ops); 1509 1510 pcm->info_flags = 0; 1511 strcpy(pcm->name, "Mic Capture"); 1512 emu->pcm_mic = pcm; 1513 1514 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &emu->pci->dev, 1515 64*1024, 64*1024); 1516 1517 return 0; 1518 } 1519 1520 static int snd_emu10k1_pcm_efx_voices_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1521 { 1522 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1523 int nefx = emu->audigy ? 64 : 32; 1524 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1525 uinfo->count = nefx; 1526 uinfo->value.integer.min = 0; 1527 uinfo->value.integer.max = 1; 1528 return 0; 1529 } 1530 1531 static int snd_emu10k1_pcm_efx_voices_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1532 { 1533 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1534 int nefx = emu->audigy ? 64 : 32; 1535 int idx; 1536 1537 for (idx = 0; idx < nefx; idx++) 1538 ucontrol->value.integer.value[idx] = (emu->efx_voices_mask[idx / 32] & (1 << (idx % 32))) ? 1 : 0; 1539 return 0; 1540 } 1541 1542 static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1543 { 1544 struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); 1545 unsigned int nval[2], bits; 1546 int nefx = emu->audigy ? 64 : 32; 1547 int change, idx; 1548 1549 nval[0] = nval[1] = 0; 1550 for (idx = 0, bits = 0; idx < nefx; idx++) 1551 if (ucontrol->value.integer.value[idx]) { 1552 nval[idx / 32] |= 1 << (idx % 32); 1553 bits++; 1554 } 1555 1556 if (bits == 9 || bits == 11 || bits == 13 || bits == 15 || bits > 16) 1557 return -EINVAL; 1558 1559 spin_lock_irq(&emu->reg_lock); 1560 change = (nval[0] != emu->efx_voices_mask[0]) || 1561 (nval[1] != emu->efx_voices_mask[1]); 1562 emu->efx_voices_mask[0] = nval[0]; 1563 emu->efx_voices_mask[1] = nval[1]; 1564 spin_unlock_irq(&emu->reg_lock); 1565 return change; 1566 } 1567 1568 static const struct snd_kcontrol_new snd_emu10k1_pcm_efx_voices_mask = { 1569 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1570 .name = "Captured FX8010 Outputs", 1571 .info = snd_emu10k1_pcm_efx_voices_mask_info, 1572 .get = snd_emu10k1_pcm_efx_voices_mask_get, 1573 .put = snd_emu10k1_pcm_efx_voices_mask_put 1574 }; 1575 1576 static const struct snd_pcm_ops snd_emu10k1_capture_efx_ops = { 1577 .open = snd_emu10k1_capture_efx_open, 1578 .close = snd_emu10k1_capture_efx_close, 1579 .prepare = snd_emu10k1_capture_prepare, 1580 .trigger = snd_emu10k1_capture_trigger, 1581 .pointer = snd_emu10k1_capture_pointer, 1582 }; 1583 1584 1585 /* EFX playback */ 1586 1587 #define INITIAL_TRAM_SHIFT 14 1588 #define INITIAL_TRAM_POS(size) ((((size) / 2) - INITIAL_TRAM_SHIFT) - 1) 1589 1590 static void snd_emu10k1_fx8010_playback_irq(struct snd_emu10k1 *emu, void *private_data) 1591 { 1592 struct snd_pcm_substream *substream = private_data; 1593 snd_pcm_period_elapsed(substream); 1594 } 1595 1596 static void snd_emu10k1_fx8010_playback_tram_poke1(unsigned short *dst_left, 1597 unsigned short *dst_right, 1598 unsigned short *src, 1599 unsigned int count, 1600 unsigned int tram_shift) 1601 { 1602 /* 1603 dev_dbg(emu->card->dev, 1604 "tram_poke1: dst_left = 0x%p, dst_right = 0x%p, " 1605 "src = 0x%p, count = 0x%x\n", 1606 dst_left, dst_right, src, count); 1607 */ 1608 if ((tram_shift & 1) == 0) { 1609 while (count--) { 1610 *dst_left-- = *src++; 1611 *dst_right-- = *src++; 1612 } 1613 } else { 1614 while (count--) { 1615 *dst_right-- = *src++; 1616 *dst_left-- = *src++; 1617 } 1618 } 1619 } 1620 1621 static void fx8010_pb_trans_copy(struct snd_pcm_substream *substream, 1622 struct snd_pcm_indirect *rec, size_t bytes) 1623 { 1624 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1625 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1626 unsigned int tram_size = pcm->buffer_size; 1627 unsigned short *src = (unsigned short *)(substream->runtime->dma_area + rec->sw_data); 1628 unsigned int frames = bytes >> 2, count; 1629 unsigned int tram_pos = pcm->tram_pos; 1630 unsigned int tram_shift = pcm->tram_shift; 1631 1632 while (frames > tram_pos) { 1633 count = tram_pos + 1; 1634 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos, 1635 (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, 1636 src, count, tram_shift); 1637 src += count * 2; 1638 frames -= count; 1639 tram_pos = (tram_size / 2) - 1; 1640 tram_shift++; 1641 } 1642 snd_emu10k1_fx8010_playback_tram_poke1((unsigned short *)emu->fx8010.etram_pages.area + tram_pos, 1643 (unsigned short *)emu->fx8010.etram_pages.area + tram_pos + tram_size / 2, 1644 src, frames, tram_shift); 1645 tram_pos -= frames; 1646 pcm->tram_pos = tram_pos; 1647 pcm->tram_shift = tram_shift; 1648 } 1649 1650 static int snd_emu10k1_fx8010_playback_transfer(struct snd_pcm_substream *substream) 1651 { 1652 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1653 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1654 1655 return snd_pcm_indirect_playback_transfer(substream, &pcm->pcm_rec, 1656 fx8010_pb_trans_copy); 1657 } 1658 1659 static int snd_emu10k1_fx8010_playback_hw_free(struct snd_pcm_substream *substream) 1660 { 1661 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1662 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1663 unsigned int i; 1664 1665 for (i = 0; i < pcm->channels; i++) 1666 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, 0); 1667 return 0; 1668 } 1669 1670 static int snd_emu10k1_fx8010_playback_prepare(struct snd_pcm_substream *substream) 1671 { 1672 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1673 struct snd_pcm_runtime *runtime = substream->runtime; 1674 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1675 unsigned int i; 1676 1677 /* 1678 dev_dbg(emu->card->dev, "prepare: etram_pages = 0x%p, dma_area = 0x%x, " 1679 "buffer_size = 0x%x (0x%x)\n", 1680 emu->fx8010.etram_pages, runtime->dma_area, 1681 runtime->buffer_size, runtime->buffer_size << 2); 1682 */ 1683 memset(&pcm->pcm_rec, 0, sizeof(pcm->pcm_rec)); 1684 pcm->pcm_rec.hw_buffer_size = pcm->buffer_size * 2; /* byte size */ 1685 pcm->pcm_rec.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream); 1686 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); 1687 pcm->tram_shift = 0; 1688 snd_emu10k1_ptr_write_multiple(emu, 0, 1689 emu->gpr_base + pcm->gpr_running, 0, /* reset */ 1690 emu->gpr_base + pcm->gpr_trigger, 0, /* reset */ 1691 emu->gpr_base + pcm->gpr_size, runtime->buffer_size, 1692 emu->gpr_base + pcm->gpr_ptr, 0, /* reset ptr number */ 1693 emu->gpr_base + pcm->gpr_count, runtime->period_size, 1694 emu->gpr_base + pcm->gpr_tmpcount, runtime->period_size, 1695 REGLIST_END); 1696 for (i = 0; i < pcm->channels; i++) 1697 snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + 0x80 + pcm->etram[i], 0, (TANKMEMADDRREG_READ|TANKMEMADDRREG_ALIGN) + i * (runtime->buffer_size / pcm->channels)); 1698 return 0; 1699 } 1700 1701 static int snd_emu10k1_fx8010_playback_trigger(struct snd_pcm_substream *substream, int cmd) 1702 { 1703 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1704 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1705 int result = 0; 1706 1707 spin_lock(&emu->reg_lock); 1708 switch (cmd) { 1709 case SNDRV_PCM_TRIGGER_START: 1710 /* follow thru */ 1711 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 1712 case SNDRV_PCM_TRIGGER_RESUME: 1713 #ifdef EMU10K1_SET_AC3_IEC958 1714 { 1715 int i; 1716 for (i = 0; i < 3; i++) { 1717 unsigned int bits; 1718 bits = SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 1719 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | SPCS_GENERATIONSTATUS | 1720 0x00001200 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT | SPCS_NOTAUDIODATA; 1721 snd_emu10k1_ptr_write(emu, SPCS0 + i, 0, bits); 1722 } 1723 } 1724 #endif 1725 result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq); 1726 if (result < 0) 1727 goto __err; 1728 snd_emu10k1_fx8010_playback_transfer(substream); /* roll the ball */ 1729 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 1); 1730 break; 1731 case SNDRV_PCM_TRIGGER_STOP: 1732 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 1733 case SNDRV_PCM_TRIGGER_SUSPEND: 1734 snd_emu10k1_fx8010_unregister_irq_handler(emu, &pcm->irq); 1735 snd_emu10k1_ptr_write(emu, emu->gpr_base + pcm->gpr_trigger, 0, 0); 1736 pcm->tram_pos = INITIAL_TRAM_POS(pcm->buffer_size); 1737 pcm->tram_shift = 0; 1738 break; 1739 default: 1740 result = -EINVAL; 1741 break; 1742 } 1743 __err: 1744 spin_unlock(&emu->reg_lock); 1745 return result; 1746 } 1747 1748 static snd_pcm_uframes_t snd_emu10k1_fx8010_playback_pointer(struct snd_pcm_substream *substream) 1749 { 1750 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1751 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1752 size_t ptr; /* byte pointer */ 1753 1754 if (!snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_trigger, 0)) 1755 return 0; 1756 ptr = snd_emu10k1_ptr_read(emu, emu->gpr_base + pcm->gpr_ptr, 0) << 2; 1757 return snd_pcm_indirect_playback_pointer(substream, &pcm->pcm_rec, ptr); 1758 } 1759 1760 static const struct snd_pcm_hardware snd_emu10k1_fx8010_playback = 1761 { 1762 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1763 SNDRV_PCM_INFO_RESUME | 1764 /* SNDRV_PCM_INFO_MMAP_VALID | */ SNDRV_PCM_INFO_PAUSE | 1765 SNDRV_PCM_INFO_SYNC_APPLPTR), 1766 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 1767 .rates = SNDRV_PCM_RATE_48000, 1768 .rate_min = 48000, 1769 .rate_max = 48000, 1770 .channels_min = 1, 1771 .channels_max = 1, 1772 .buffer_bytes_max = (128*1024), 1773 .period_bytes_min = 1024, 1774 .period_bytes_max = (128*1024), 1775 .periods_min = 2, 1776 .periods_max = 1024, 1777 .fifo_size = 0, 1778 }; 1779 1780 static int snd_emu10k1_fx8010_playback_open(struct snd_pcm_substream *substream) 1781 { 1782 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1783 struct snd_pcm_runtime *runtime = substream->runtime; 1784 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1785 1786 runtime->hw = snd_emu10k1_fx8010_playback; 1787 runtime->hw.channels_min = runtime->hw.channels_max = pcm->channels; 1788 runtime->hw.period_bytes_max = (pcm->buffer_size * 2) / 2; 1789 spin_lock_irq(&emu->reg_lock); 1790 if (pcm->valid == 0) { 1791 spin_unlock_irq(&emu->reg_lock); 1792 return -ENODEV; 1793 } 1794 pcm->opened = 1; 1795 spin_unlock_irq(&emu->reg_lock); 1796 return 0; 1797 } 1798 1799 static int snd_emu10k1_fx8010_playback_close(struct snd_pcm_substream *substream) 1800 { 1801 struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); 1802 struct snd_emu10k1_fx8010_pcm *pcm = &emu->fx8010.pcm[substream->number]; 1803 1804 spin_lock_irq(&emu->reg_lock); 1805 pcm->opened = 0; 1806 spin_unlock_irq(&emu->reg_lock); 1807 return 0; 1808 } 1809 1810 static const struct snd_pcm_ops snd_emu10k1_fx8010_playback_ops = { 1811 .open = snd_emu10k1_fx8010_playback_open, 1812 .close = snd_emu10k1_fx8010_playback_close, 1813 .hw_free = snd_emu10k1_fx8010_playback_hw_free, 1814 .prepare = snd_emu10k1_fx8010_playback_prepare, 1815 .trigger = snd_emu10k1_fx8010_playback_trigger, 1816 .pointer = snd_emu10k1_fx8010_playback_pointer, 1817 .ack = snd_emu10k1_fx8010_playback_transfer, 1818 }; 1819 1820 int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device) 1821 { 1822 struct snd_pcm *pcm; 1823 struct snd_kcontrol *kctl; 1824 int err; 1825 1826 err = snd_pcm_new(emu->card, "emu10k1 efx", device, emu->audigy ? 0 : 8, 1, &pcm); 1827 if (err < 0) 1828 return err; 1829 1830 pcm->private_data = emu; 1831 1832 if (!emu->audigy) 1833 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1_fx8010_playback_ops); 1834 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1_capture_efx_ops); 1835 1836 pcm->info_flags = 0; 1837 if (emu->audigy) 1838 strcpy(pcm->name, "Multichannel Capture"); 1839 else 1840 strcpy(pcm->name, "Multichannel Capture/PT Playback"); 1841 emu->pcm_efx = pcm; 1842 1843 if (!emu->card_capabilities->emu_model) { 1844 // On Sound Blasters, the DSP code copies the EXTINs to FXBUS2. 1845 // The mask determines which of these and the EXTOUTs the multi- 1846 // channel capture actually records (the channel order is fixed). 1847 if (emu->audigy) { 1848 emu->efx_voices_mask[0] = 0; 1849 emu->efx_voices_mask[1] = 0xffff; 1850 } else { 1851 emu->efx_voices_mask[0] = 0xffff0000; 1852 emu->efx_voices_mask[1] = 0; 1853 } 1854 kctl = snd_ctl_new1(&snd_emu10k1_pcm_efx_voices_mask, emu); 1855 if (!kctl) 1856 return -ENOMEM; 1857 kctl->id.device = device; 1858 err = snd_ctl_add(emu->card, kctl); 1859 if (err < 0) 1860 return err; 1861 } else { 1862 // On E-MU cards, the DSP code copies the P16VINs/EMU32INs to 1863 // FXBUS2. These are already selected & routed by the FPGA, 1864 // so there is no need to apply additional masking. 1865 } 1866 1867 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &emu->pci->dev, 1868 64*1024, 64*1024); 1869 1870 return 0; 1871 } 1872